From a4e2b347848bf626b822599329933887dc90e50f Mon Sep 17 00:00:00 2001
From: Michael Chan <mchan@broadcom.com>
Date: Wed, 26 Oct 2005 15:46:52 -0700
Subject: [PATCH] tg3: add 5714/5715 support

Add complete support for 5714/5715. These chips are very similar to
5780 so the changes are very trivial. A TG3_FLG2_5780_CLASS flag is
added to identify these chips.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
---
 drivers/net/tg3.c | 39 +++++++++++++++++++++++++--------------
 drivers/net/tg3.h | 11 +++++++++--
 2 files changed, 34 insertions(+), 16 deletions(-)

(limited to 'drivers')

diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index 1802c3b48799..cf2204f5b7f9 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -219,6 +219,10 @@ static struct pci_device_id tg3_pci_tbl[] = {
 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
 	{ PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5753F,
 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
+	{ PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5714,
+	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
+	{ PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5715,
+	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
 	{ PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5780,
 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
 	{ PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5780S,
@@ -570,7 +574,7 @@ static void tg3_switch_clocks(struct tg3 *tp)
 	u32 clock_ctrl = tr32(TG3PCI_CLOCK_CTRL);
 	u32 orig_clock_ctrl;
 
-	if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5780)
+	if (tp->tg3_flags2 & TG3_FLG2_5780_CLASS)
 		return;
 
 	orig_clock_ctrl = clock_ctrl;
@@ -1210,7 +1214,7 @@ static int tg3_set_power_state(struct tg3 *tp, int state)
 		     CLOCK_CTRL_ALTCLK |
 		     CLOCK_CTRL_PWRDOWN_PLL133);
 		udelay(40);
-	} else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5780) {
+	} else if (tp->tg3_flags2 & TG3_FLG2_5780_CLASS) {
 		/* do nothing */
 	} else if (!((tp->tg3_flags2 & TG3_FLG2_5750_PLUS) &&
 		     (tp->tg3_flags & TG3_FLAG_ENABLE_ASF))) {
@@ -3712,14 +3716,14 @@ static inline void tg3_set_mtu(struct net_device *dev, struct tg3 *tp,
 	dev->mtu = new_mtu;
 
 	if (new_mtu > ETH_DATA_LEN) {
-		if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5780) {
+		if (tp->tg3_flags2 & TG3_FLG2_5780_CLASS) {
 			tp->tg3_flags2 &= ~TG3_FLG2_TSO_CAPABLE;
 			ethtool_op_set_tso(dev, 0);
 		}
 		else
 			tp->tg3_flags |= TG3_FLAG_JUMBO_RING_ENABLE;
 	} else {
-		if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5780)
+		if (tp->tg3_flags2 & TG3_FLG2_5780_CLASS)
 			tp->tg3_flags2 |= TG3_FLG2_TSO_CAPABLE;
 		tp->tg3_flags &= ~TG3_FLAG_JUMBO_RING_ENABLE;
 	}
@@ -3850,7 +3854,7 @@ static void tg3_init_rings(struct tg3 *tp)
 	memset(tp->tx_ring, 0, TG3_TX_RING_BYTES);
 
 	tp->rx_pkt_buf_sz = RX_PKT_BUF_SZ;
-	if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5780) &&
+	if ((tp->tg3_flags2 & TG3_FLG2_5780_CLASS) &&
 	    (tp->dev->mtu > ETH_DATA_LEN))
 		tp->rx_pkt_buf_sz = RX_JUMBO_PKT_BUF_SZ;
 
@@ -4347,7 +4351,7 @@ static int tg3_chip_reset(struct tg3 *tp)
 	val &= ~PCIX_CAPS_RELAXED_ORDERING;
 	pci_write_config_dword(tp->pdev, TG3PCI_X_CAPS, val);
 
-	if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5780) {
+	if (tp->tg3_flags2 & TG3_FLG2_5780_CLASS) {
 		u32 val;
 
 		/* Chip reset on 5780 will reset MSI enable bit,
@@ -6003,7 +6007,7 @@ static int tg3_reset_hw(struct tg3 *tp)
 	tw32(MAC_RCV_VALUE_1, 0xffffffff & RCV_RULE_DISABLE_MASK);
 
 	if ((tp->tg3_flags2 & TG3_FLG2_5705_PLUS) &&
-	    (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5780))
+	    !(tp->tg3_flags2 & TG3_FLG2_5780_CLASS))
 		limit = 8;
 	else
 		limit = 16;
@@ -7237,7 +7241,7 @@ static int tg3_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
 		cmd->supported |= (SUPPORTED_1000baseT_Half |
 				   SUPPORTED_1000baseT_Full);
 
-	if (!(tp->tg3_flags2 & TG3_FLG2_PHY_SERDES))
+	if (!(tp->tg3_flags2 & TG3_FLG2_ANY_SERDES))
 		cmd->supported |= (SUPPORTED_100baseT_Half |
 				  SUPPORTED_100baseT_Full |
 				  SUPPORTED_10baseT_Half |
@@ -8380,7 +8384,7 @@ static void __devinit tg3_get_nvram_info(struct tg3 *tp)
 	}
 
 	if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5750) ||
-	    (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5780)) {
+	    (tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) {
 		switch (nvcfg1 & NVRAM_CFG1_VENDOR_MASK) {
 			case FLASH_VENDOR_ATMEL_FLASH_BUFFERED:
 				tp->nvram_jedecnum = JEDEC_ATMEL;
@@ -8980,7 +8984,7 @@ static void __devinit tg3_get_eeprom_hw_cfg(struct tg3 *tp)
 
 		tp->phy_id = eeprom_phy_id;
 		if (eeprom_phy_serdes) {
-			if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5780)
+			if (tp->tg3_flags2 & TG3_FLG2_5780_CLASS)
 				tp->tg3_flags2 |= TG3_FLG2_MII_SERDES;
 			else
 				tp->tg3_flags2 |= TG3_FLG2_PHY_SERDES;
@@ -9393,8 +9397,11 @@ static int __devinit tg3_get_invariants(struct tg3 *tp)
 	}
 
 	/* Find msi capability. */
-	if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5780)
+	if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5780 ||
+	    GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714) {
+		tp->tg3_flags2 |= TG3_FLG2_5780_CLASS;
 		tp->msi_cap = pci_find_capability(tp->pdev, PCI_CAP_ID_MSI);
+	}
 
 	/* Initialize misc host control in PCI block. */
 	tp->misc_host_ctrl |= (misc_ctrl_reg &
@@ -9412,7 +9419,7 @@ static int __devinit tg3_get_invariants(struct tg3 *tp)
 
 	if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5750 ||
 	    GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5752 ||
-	    GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5780)
+	    (tp->tg3_flags2 & TG3_FLG2_5780_CLASS))
 		tp->tg3_flags2 |= TG3_FLG2_5750_PLUS;
 
 	if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) ||
@@ -9607,7 +9614,7 @@ static int __devinit tg3_get_invariants(struct tg3 *tp)
 	 * ether_setup() via the alloc_etherdev() call
 	 */
 	if (tp->dev->mtu > ETH_DATA_LEN &&
-	    GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5780)
+	    !(tp->tg3_flags2 & TG3_FLG2_5780_CLASS))
 		tp->tg3_flags |= TG3_FLAG_JUMBO_RING_ENABLE;
 
 	/* Determine WakeOnLan speed to use. */
@@ -9830,7 +9837,7 @@ static int __devinit tg3_get_device_address(struct tg3 *tp)
 	mac_offset = 0x7c;
 	if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 &&
 	     !(tp->tg3_flags & TG3_FLG2_SUN_570X)) ||
-	    GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5780) {
+	    (tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) {
 		if (tr32(TG3PCI_DUAL_MAC_CTRL) & DUAL_MAC_CTRL_ID)
 			mac_offset = 0xcc;
 		if (tg3_nvram_lock(tp))
@@ -10148,6 +10155,9 @@ static int __devinit tg3_test_dma(struct tg3 *tp)
 		} else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5780) {
 			/* 5780 always in PCIX mode */
 			tp->dma_rwctrl |= 0x00144000;
+		} else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714) {
+			/* 5714 always in PCIX mode */
+			tp->dma_rwctrl |= 0x00148000;
 		} else {
 			tp->dma_rwctrl |= 0x001b000f;
 		}
@@ -10347,6 +10357,7 @@ static char * __devinit tg3_phy_string(struct tg3 *tp)
 	case PHY_ID_BCM5705:	return "5705";
 	case PHY_ID_BCM5750:	return "5750";
 	case PHY_ID_BCM5752:	return "5752";
+	case PHY_ID_BCM5714:	return "5714";
 	case PHY_ID_BCM5780:	return "5780";
 	case PHY_ID_BCM8002:	return "8002/serdes";
 	case 0:			return "serdes";
diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h
index 2e733c60bfa4..456ef2b3d0ef 100644
--- a/drivers/net/tg3.h
+++ b/drivers/net/tg3.h
@@ -137,6 +137,7 @@
 #define   ASIC_REV_5750			 0x04
 #define   ASIC_REV_5752			 0x06
 #define   ASIC_REV_5780			 0x08
+#define   ASIC_REV_5714			 0x09
 #define  GET_CHIP_REV(CHIP_REV_ID)	((CHIP_REV_ID) >> 8)
 #define   CHIPREV_5700_AX		 0x70
 #define   CHIPREV_5700_BX		 0x71
@@ -531,6 +532,8 @@
 #define  MAC_SERDES_CFG_EDGE_SELECT	 0x00001000
 #define MAC_SERDES_STAT			0x00000594
 /* 0x598 --> 0x5b0 unused */
+#define SERDES_RX_CTRL			0x000005b0	/* 5780/5714 only */
+#define  SERDES_RX_SIG_DETECT		 0x00000400
 #define SG_DIG_CTRL			0x000005b0
 #define  SG_DIG_USING_HW_AUTONEG	 0x80000000
 #define  SG_DIG_SOFT_RESET		 0x40000000
@@ -1329,6 +1332,8 @@
 #define  GRC_LCLCTRL_CLEARINT		0x00000002
 #define  GRC_LCLCTRL_SETINT		0x00000004
 #define  GRC_LCLCTRL_INT_ON_ATTN	0x00000008
+#define  GRC_LCLCTRL_USE_SIG_DETECT	0x00000010	/* 5714/5780 only */
+#define  GRC_LCLCTRL_USE_EXT_SIG_DETECT	0x00000020	/* 5714/5780 only */
 #define  GRC_LCLCTRL_GPIO_INPUT3	0x00000020
 #define  GRC_LCLCTRL_GPIO_OE3		0x00000040
 #define  GRC_LCLCTRL_GPIO_OUTPUT3	0x00000080
@@ -2175,6 +2180,7 @@ struct tg3 {
 					TG3_FLG2_MII_SERDES)
 #define TG3_FLG2_PARALLEL_DETECT	0x01000000
 #define TG3_FLG2_ICH_WORKAROUND		0x02000000
+#define TG3_FLG2_5780_CLASS		0x04000000
 
 	u32				split_mode_max_reqs;
 #define SPLIT_MODE_5704_MAX_REQ		3
@@ -2222,6 +2228,7 @@ struct tg3 {
 #define PHY_ID_BCM5705			0x600081a0
 #define PHY_ID_BCM5750			0x60008180
 #define PHY_ID_BCM5752			0x60008100
+#define PHY_ID_BCM5714			0x60008340
 #define PHY_ID_BCM5780			0x60008350
 #define PHY_ID_BCM8002			0x60010140
 #define PHY_ID_INVALID			0xffffffff
@@ -2246,8 +2253,8 @@ struct tg3 {
 	 (X) == PHY_ID_BCM5411 || (X) == PHY_ID_BCM5701 || \
 	 (X) == PHY_ID_BCM5703 || (X) == PHY_ID_BCM5704 || \
 	 (X) == PHY_ID_BCM5705 || (X) == PHY_ID_BCM5750 || \
-	 (X) == PHY_ID_BCM5752 || (X) == PHY_ID_BCM5780 || \
-	 (X) == PHY_ID_BCM8002)
+	 (X) == PHY_ID_BCM5752 || (X) == PHY_ID_BCM5714 || \
+	 (X) == PHY_ID_BCM5780 || (X) == PHY_ID_BCM8002)
 
 	struct tg3_hw_stats		*hw_stats;
 	dma_addr_t			stats_mapping;
-- 
cgit v1.2.3


From 28fbef78a420acdea20570d31f3bdcbfa0cac0d2 Mon Sep 17 00:00:00 2001
From: Michael Chan <mchan@broadcom.com>
Date: Wed, 26 Oct 2005 15:48:35 -0700
Subject: [PATCH] tg3: fix ASF heartbeat

Change the ASF heart beat to 5 seconds for faster detection of system
crash. The driver sends the heartbeat every 2 seconds and the ASF
firmware will timeout and reset the device if no heartbeat is received
after 5 seconds. The old scheme of 2 minutes is ineffective.

tg3_write_mem_fast() is added to speed up the IO to send the heartbeat.
When no workaround is needed, it will use direct MMIO to memory space
to write to memory.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
---
 drivers/net/tg3.c | 21 ++++++++++++++++-----
 drivers/net/tg3.h |  1 +
 2 files changed, 17 insertions(+), 5 deletions(-)

(limited to 'drivers')

diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index cf2204f5b7f9..479be21425fb 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -470,6 +470,15 @@ static void tg3_write_mem(struct tg3 *tp, u32 off, u32 val)
 	spin_unlock_irqrestore(&tp->indirect_lock, flags);
 }
 
+static void tg3_write_mem_fast(struct tg3 *tp, u32 off, u32 val)
+{
+	/* If no workaround is needed, write to mem space directly */
+	if (tp->write32 != tg3_write_indirect_reg32)
+		tw32(NIC_SRAM_WIN_BASE + off, val);
+	else
+		tg3_write_mem(tp, off, val);
+}
+
 static void tg3_read_mem(struct tg3 *tp, u32 off, u32 *val)
 {
 	unsigned long flags;
@@ -6195,14 +6204,16 @@ static void tg3_timer(unsigned long __opaque)
 		tp->timer_counter = tp->timer_multiplier;
 	}
 
-	/* Heartbeat is only sent once every 120 seconds.  */
+	/* Heartbeat is only sent once every 2 seconds.  */
 	if (!--tp->asf_counter) {
 		if (tp->tg3_flags & TG3_FLAG_ENABLE_ASF) {
 			u32 val;
 
-			tg3_write_mem(tp, NIC_SRAM_FW_CMD_MBOX, FWCMD_NICDRV_ALIVE);
-			tg3_write_mem(tp, NIC_SRAM_FW_CMD_LEN_MBOX, 4);
-			tg3_write_mem(tp, NIC_SRAM_FW_CMD_DATA_MBOX, 3);
+			tg3_write_mem_fast(tp, NIC_SRAM_FW_CMD_MBOX,
+					   FWCMD_NICDRV_ALIVE2);
+			tg3_write_mem_fast(tp, NIC_SRAM_FW_CMD_LEN_MBOX, 4);
+			/* 5 seconds timeout */
+			tg3_write_mem_fast(tp, NIC_SRAM_FW_CMD_DATA_MBOX, 5);
 			val = tr32(GRC_RX_CPU_EVENT);
 			val |= (1 << 14);
 			tw32(GRC_RX_CPU_EVENT, val);
@@ -6413,7 +6424,7 @@ static int tg3_open(struct net_device *dev)
 		tp->timer_counter = tp->timer_multiplier =
 			(HZ / tp->timer_offset);
 		tp->asf_counter = tp->asf_multiplier =
-			((HZ / tp->timer_offset) * 120);
+			((HZ / tp->timer_offset) * 2);
 
 		init_timer(&tp->timer);
 		tp->timer.expires = jiffies + tp->timer_offset;
diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h
index 456ef2b3d0ef..fb7e2a5f4a08 100644
--- a/drivers/net/tg3.h
+++ b/drivers/net/tg3.h
@@ -1512,6 +1512,7 @@
 #define  FWCMD_NICDRV_IPV6ADDR_CHG	 0x00000004
 #define  FWCMD_NICDRV_FIX_DMAR		 0x00000005
 #define  FWCMD_NICDRV_FIX_DMAW		 0x00000006
+#define  FWCMD_NICDRV_ALIVE2		 0x0000000d
 #define NIC_SRAM_FW_CMD_LEN_MBOX	0x00000b7c
 #define NIC_SRAM_FW_CMD_DATA_MBOX	0x00000b80
 #define NIC_SRAM_FW_ASF_STATUS_MBOX	0x00000c00
-- 
cgit v1.2.3


From 37ff238d68683d42e7363eee3303773906c336d9 Mon Sep 17 00:00:00 2001
From: Michael Chan <mchan@broadcom.com>
Date: Wed, 26 Oct 2005 15:49:51 -0700
Subject: [PATCH] tg3: update version and minor fixes

Update version and reldate and add more sanity checking to
tg3_set_settings().

Signed-off-by: Gary Zambrano <zambrano@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
---
 drivers/net/tg3.c | 18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)

(limited to 'drivers')

diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index 479be21425fb..551c9449322d 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -67,8 +67,8 @@
 
 #define DRV_MODULE_NAME		"tg3"
 #define PFX DRV_MODULE_NAME	": "
-#define DRV_MODULE_VERSION	"3.42"
-#define DRV_MODULE_RELDATE	"Oct 3, 2005"
+#define DRV_MODULE_VERSION	"3.43"
+#define DRV_MODULE_RELDATE	"Oct 24, 2005"
 
 #define TG3_DEF_MAC_MODE	0
 #define TG3_DEF_RX_MODE		0
@@ -7279,7 +7279,7 @@ static int tg3_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
 {
 	struct tg3 *tp = netdev_priv(dev);
   
-	if (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES) {
+	if (tp->tg3_flags2 & TG3_FLG2_ANY_SERDES) { 
 		/* These are the only valid advertisement bits allowed.  */
 		if (cmd->autoneg == AUTONEG_ENABLE &&
 		    (cmd->advertising & ~(ADVERTISED_1000baseT_Half |
@@ -7287,7 +7287,17 @@ static int tg3_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
 					  ADVERTISED_Autoneg |
 					  ADVERTISED_FIBRE)))
 			return -EINVAL;
-	}
+		/* Fiber can only do SPEED_1000.  */
+		else if ((cmd->autoneg != AUTONEG_ENABLE) &&
+			 (cmd->speed != SPEED_1000))
+			return -EINVAL;
+	/* Copper cannot force SPEED_1000.  */
+	} else if ((cmd->autoneg != AUTONEG_ENABLE) &&
+		   (cmd->speed == SPEED_1000))
+		return -EINVAL;
+	else if ((cmd->speed == SPEED_1000) &&
+		 (tp->tg3_flags2 & TG3_FLAG_10_100_ONLY))
+		return -EINVAL;
 
 	tg3_full_lock(tp, 0);
 
-- 
cgit v1.2.3


From 0abe791e94033b727f2b55670c2966f3d3d3cf70 Mon Sep 17 00:00:00 2001
From: Santiago Leon <santil@us.ibm.com>
Date: Wed, 26 Oct 2005 10:46:53 -0600
Subject: [PATCH] ibmveth fix bonding

This patch updates dev->trans_start and dev->last_rx so that the ibmveth
driver can be used with the ARP monitor in the bonding driver.

Signed-off-by: Santiago Leon <santil@us.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
---
 drivers/net/ibmveth.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'drivers')

diff --git a/drivers/net/ibmveth.c b/drivers/net/ibmveth.c
index a2c4dd4fb221..5617bec7fd53 100644
--- a/drivers/net/ibmveth.c
+++ b/drivers/net/ibmveth.c
@@ -725,6 +725,7 @@ static int ibmveth_start_xmit(struct sk_buff *skb, struct net_device *netdev)
 	} else {
 		adapter->stats.tx_packets++;
 		adapter->stats.tx_bytes += skb->len;
+		netdev->trans_start = jiffies;
 	}
 
 	do {
@@ -776,6 +777,7 @@ static int ibmveth_poll(struct net_device *netdev, int *budget)
 				adapter->stats.rx_packets++;
 				adapter->stats.rx_bytes += length;
 				frames_processed++;
+				netdev->last_rx = jiffies;
 			}
 		} else {
 			more_work = 0;
-- 
cgit v1.2.3


From b6d35182fe62e57d368062adcc880ca35119d88e Mon Sep 17 00:00:00 2001
From: Santiago Leon <santil@us.ibm.com>
Date: Wed, 26 Oct 2005 10:47:01 -0600
Subject: [PATCH] ibmveth fix buffer pool management

This patch changes the way the ibmveth driver handles the receive
buffers.  The old code mallocs and maps all the buffers in the pools
regardless of MTU size and it also limits the number of buffer pools to
three. This patch makes the driver malloc and map the buffers necessary
to support the current MTU. It also changes the hardcoded names of the
buffer pool number, size, and elements to arrays to make it easier to
change (with the hope of making them runtime parameters in the future).

Signed-off-by: Santiago Leon <santil@us.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
---
 drivers/net/ibmveth.c | 102 ++++++++++++++++++++++++++++++++++++--------------
 drivers/net/ibmveth.h |  18 +++++----
 2 files changed, 85 insertions(+), 35 deletions(-)

(limited to 'drivers')

diff --git a/drivers/net/ibmveth.c b/drivers/net/ibmveth.c
index 5617bec7fd53..d985b804a762 100644
--- a/drivers/net/ibmveth.c
+++ b/drivers/net/ibmveth.c
@@ -97,6 +97,7 @@ static void ibmveth_proc_register_adapter(struct ibmveth_adapter *adapter);
 static void ibmveth_proc_unregister_adapter(struct ibmveth_adapter *adapter);
 static irqreturn_t ibmveth_interrupt(int irq, void *dev_instance, struct pt_regs *regs);
 static inline void ibmveth_schedule_replenishing(struct ibmveth_adapter*);
+static inline void ibmveth_rxq_harvest_buffer(struct ibmveth_adapter *adapter);
 
 #ifdef CONFIG_PROC_FS
 #define IBMVETH_PROC_DIR "net/ibmveth"
@@ -181,6 +182,7 @@ static int ibmveth_alloc_buffer_pool(struct ibmveth_buff_pool *pool)
 	atomic_set(&pool->available, 0);
 	pool->producer_index = 0;
 	pool->consumer_index = 0;
+	pool->active = 0;
 
 	return 0;
 }
@@ -258,9 +260,14 @@ static void ibmveth_replenish_buffer_pool(struct ibmveth_adapter *adapter, struc
 /* check if replenishing is needed.  */
 static inline int ibmveth_is_replenishing_needed(struct ibmveth_adapter *adapter)
 {
-	return ((atomic_read(&adapter->rx_buff_pool[0].available) < adapter->rx_buff_pool[0].threshold) ||
-		(atomic_read(&adapter->rx_buff_pool[1].available) < adapter->rx_buff_pool[1].threshold) ||
-		(atomic_read(&adapter->rx_buff_pool[2].available) < adapter->rx_buff_pool[2].threshold));
+	int i;
+
+	for(i = 0; i < IbmVethNumBufferPools; i++)
+		if(adapter->rx_buff_pool[i].active &&
+		  (atomic_read(&adapter->rx_buff_pool[i].available) <
+		   adapter->rx_buff_pool[i].threshold))
+			return 1;
+	return 0;
 }
 
 /* kick the replenish tasklet if we need replenishing and it isn't already running */
@@ -275,11 +282,14 @@ static inline void ibmveth_schedule_replenishing(struct ibmveth_adapter *adapter
 /* replenish tasklet routine */
 static void ibmveth_replenish_task(struct ibmveth_adapter *adapter) 
 {
+	int i;
+
 	adapter->replenish_task_cycles++;
 
-	ibmveth_replenish_buffer_pool(adapter, &adapter->rx_buff_pool[0]);
-	ibmveth_replenish_buffer_pool(adapter, &adapter->rx_buff_pool[1]);
-	ibmveth_replenish_buffer_pool(adapter, &adapter->rx_buff_pool[2]);
+	for(i = 0; i < IbmVethNumBufferPools; i++)
+		if(adapter->rx_buff_pool[i].active)
+			ibmveth_replenish_buffer_pool(adapter, 
+						     &adapter->rx_buff_pool[i]);
 
 	adapter->rx_no_buffer = *(u64*)(((char*)adapter->buffer_list_addr) + 4096 - 8);
 
@@ -321,6 +331,7 @@ static void ibmveth_free_buffer_pool(struct ibmveth_adapter *adapter, struct ibm
 		kfree(pool->skbuff);
 		pool->skbuff = NULL;
 	}
+	pool->active = 0;
 }
 
 /* remove a buffer from a pool */
@@ -379,6 +390,12 @@ static void ibmveth_rxq_recycle_buffer(struct ibmveth_adapter *adapter)
 	ibmveth_assert(pool < IbmVethNumBufferPools);
 	ibmveth_assert(index < adapter->rx_buff_pool[pool].size);
 
+	if(!adapter->rx_buff_pool[pool].active) {
+		ibmveth_rxq_harvest_buffer(adapter);
+		ibmveth_free_buffer_pool(adapter, &adapter->rx_buff_pool[pool]);
+		return;
+	}
+
 	desc.desc = 0;
 	desc.fields.valid = 1;
 	desc.fields.length = adapter->rx_buff_pool[pool].buff_size;
@@ -409,6 +426,8 @@ static inline void ibmveth_rxq_harvest_buffer(struct ibmveth_adapter *adapter)
 
 static void ibmveth_cleanup(struct ibmveth_adapter *adapter)
 {
+	int i;
+
 	if(adapter->buffer_list_addr != NULL) {
 		if(!dma_mapping_error(adapter->buffer_list_dma)) {
 			dma_unmap_single(&adapter->vdev->dev,
@@ -443,26 +462,24 @@ static void ibmveth_cleanup(struct ibmveth_adapter *adapter)
 		adapter->rx_queue.queue_addr = NULL;
 	}
 
-	ibmveth_free_buffer_pool(adapter, &adapter->rx_buff_pool[0]);
-	ibmveth_free_buffer_pool(adapter, &adapter->rx_buff_pool[1]);
-	ibmveth_free_buffer_pool(adapter, &adapter->rx_buff_pool[2]);
+	for(i = 0; i<IbmVethNumBufferPools; i++)
+		ibmveth_free_buffer_pool(adapter, &adapter->rx_buff_pool[i]);
 }
 
 static int ibmveth_open(struct net_device *netdev)
 {
 	struct ibmveth_adapter *adapter = netdev->priv;
 	u64 mac_address = 0;
-	int rxq_entries;
+	int rxq_entries = 1;
 	unsigned long lpar_rc;
 	int rc;
 	union ibmveth_buf_desc rxq_desc;
+	int i;
 
 	ibmveth_debug_printk("open starting\n");
 
-	rxq_entries =
-		adapter->rx_buff_pool[0].size +
-		adapter->rx_buff_pool[1].size +
-		adapter->rx_buff_pool[2].size + 1;
+	for(i = 0; i<IbmVethNumBufferPools; i++)
+		rxq_entries += adapter->rx_buff_pool[i].size;
     
 	adapter->buffer_list_addr = (void*) get_zeroed_page(GFP_KERNEL);
 	adapter->filter_list_addr = (void*) get_zeroed_page(GFP_KERNEL);
@@ -502,14 +519,8 @@ static int ibmveth_open(struct net_device *netdev)
 	adapter->rx_queue.num_slots = rxq_entries;
 	adapter->rx_queue.toggle = 1;
 
-	if(ibmveth_alloc_buffer_pool(&adapter->rx_buff_pool[0]) ||
-	   ibmveth_alloc_buffer_pool(&adapter->rx_buff_pool[1]) ||
-	   ibmveth_alloc_buffer_pool(&adapter->rx_buff_pool[2]))
-	{
-		ibmveth_error_printk("unable to allocate buffer pools\n");
-		ibmveth_cleanup(adapter);
-		return -ENOMEM;
-	}
+	/* call change_mtu to init the buffer pools based in initial mtu */
+	ibmveth_change_mtu(netdev, netdev->mtu);
 
 	memcpy(&mac_address, netdev->dev_addr, netdev->addr_len);
 	mac_address = mac_address >> 16;
@@ -885,17 +896,52 @@ static void ibmveth_set_multicast_list(struct net_device *netdev)
 
 static int ibmveth_change_mtu(struct net_device *dev, int new_mtu)
 {
-	if ((new_mtu < 68) || (new_mtu > (1<<20)))
+	struct ibmveth_adapter *adapter = dev->priv;
+	int i;
+	int prev_smaller = 1;
+
+	if ((new_mtu < 68) || 
+	    (new_mtu > (pool_size[IbmVethNumBufferPools-1]) - IBMVETH_BUFF_OH))
 		return -EINVAL;
+
+	for(i = 0; i<IbmVethNumBufferPools; i++) {
+		int activate = 0;
+		if (new_mtu > (pool_size[i]  - IBMVETH_BUFF_OH)) { 
+			activate = 1;
+			prev_smaller= 1;
+		} else {
+			if (prev_smaller)
+				activate = 1;
+			prev_smaller= 0;
+		}
+
+		if (activate && !adapter->rx_buff_pool[i].active) {
+			struct ibmveth_buff_pool *pool = 
+						&adapter->rx_buff_pool[i];
+			if(ibmveth_alloc_buffer_pool(pool)) {
+				ibmveth_error_printk("unable to alloc pool\n");
+				return -ENOMEM;
+			}
+			adapter->rx_buff_pool[i].active = 1;
+		} else if (!activate && adapter->rx_buff_pool[i].active) {
+			adapter->rx_buff_pool[i].active = 0;
+			h_free_logical_lan_buffer(adapter->vdev->unit_address,
+					  (u64)pool_size[i]);
+		}
+
+	}
+
+
+	ibmveth_schedule_replenishing(adapter);
 	dev->mtu = new_mtu;
 	return 0;	
 }
 
 static int __devinit ibmveth_probe(struct vio_dev *dev, const struct vio_device_id *id)
 {
-	int rc;
+	int rc, i;
 	struct net_device *netdev;
-	struct ibmveth_adapter *adapter;
+	struct ibmveth_adapter *adapter = NULL;
 
 	unsigned char *mac_addr_p;
 	unsigned int *mcastFilterSize_p;
@@ -965,9 +1011,9 @@ static int __devinit ibmveth_probe(struct vio_dev *dev, const struct vio_device_
 
 	memcpy(&netdev->dev_addr, &adapter->mac_addr, netdev->addr_len);
 
-	ibmveth_init_buffer_pool(&adapter->rx_buff_pool[0], 0, IbmVethPool0DftCnt, IbmVethPool0DftSize);
-	ibmveth_init_buffer_pool(&adapter->rx_buff_pool[1], 1, IbmVethPool1DftCnt, IbmVethPool1DftSize);
-	ibmveth_init_buffer_pool(&adapter->rx_buff_pool[2], 2, IbmVethPool2DftCnt, IbmVethPool2DftSize);
+	for(i = 0; i<IbmVethNumBufferPools; i++)
+		ibmveth_init_buffer_pool(&adapter->rx_buff_pool[i], i, 
+					 pool_count[i], pool_size[i]);
 
 	ibmveth_debug_printk("adapter @ 0x%p\n", adapter);
 
diff --git a/drivers/net/ibmveth.h b/drivers/net/ibmveth.h
index 51a470da9686..a5d27a9cdf1f 100644
--- a/drivers/net/ibmveth.h
+++ b/drivers/net/ibmveth.h
@@ -49,6 +49,7 @@
 #define H_SEND_LOGICAL_LAN       0x120
 #define H_MULTICAST_CTRL         0x130
 #define H_CHANGE_LOGICAL_LAN_MAC 0x14C
+#define H_FREE_LOGICAL_LAN_BUFFER 0x1D4
 
 /* hcall macros */
 #define h_register_logical_lan(ua, buflst, rxq, fltlst, mac) \
@@ -69,13 +70,15 @@
 #define h_change_logical_lan_mac(ua, mac) \
   plpar_hcall_norets(H_CHANGE_LOGICAL_LAN_MAC, ua, mac)
 
-#define IbmVethNumBufferPools 3
-#define IbmVethPool0DftSize (1024 * 2)
-#define IbmVethPool1DftSize (1024 * 4)
-#define IbmVethPool2DftSize (1024 * 10)
-#define IbmVethPool0DftCnt  256
-#define IbmVethPool1DftCnt  256
-#define IbmVethPool2DftCnt  256
+#define h_free_logical_lan_buffer(ua, bufsize) \
+  plpar_hcall_norets(H_FREE_LOGICAL_LAN_BUFFER, ua, bufsize)
+
+#define IbmVethNumBufferPools 5
+#define IBMVETH_BUFF_OH 22 /* Overhead: 14 ethernet header + 8 opaque handle */
+
+/* pool_size should be sorted */
+static int pool_size[] = { 512, 1024 * 2, 1024 * 16, 1024 * 32, 1024 * 64 };
+static int pool_count[] = { 256, 768, 256, 256, 256 };
 
 #define IBM_VETH_INVALID_MAP ((u16)0xffff)
 
@@ -90,6 +93,7 @@ struct ibmveth_buff_pool {
     u16 *free_map;
     dma_addr_t *dma_addr;
     struct sk_buff **skbuff;
+    int active;
 };
 
 struct ibmveth_rx_q {
-- 
cgit v1.2.3


From e2adbcb480992de8a01acf9218e8bbd9b507fc6f Mon Sep 17 00:00:00 2001
From: Santiago Leon <santil@us.ibm.com>
Date: Wed, 26 Oct 2005 10:47:08 -0600
Subject: [PATCH] ibmveth fix buffer replenishing

This patch removes the allocation of RX skb's  buffers from a workqueue
to be called directly at RX processing time.  This change was suggested
by Dave Miller when the driver was starving the RX buffers and
deadlocking under heavy traffic:

> Allocating RX SKBs via tasklet is, IMHO, the worst way to
> do it.  It is no surprise that there are starvation cases.
>
> If tasklets or work queues get delayed in any way, you lose,
> and it's very easy for a card to catch up with the driver RX'ing
> packets very fast, no matter how aggressive you make the
> replenishing.  By the time you detect that you need to be
> "more aggressive" it is already too late.
> The only pseudo-reliable way is to allocate at RX processing time.
>

Signed-off-by: Santiago Leon <santil@us.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
---
 drivers/net/ibmveth.c | 48 ++++++++----------------------------------------
 drivers/net/ibmveth.h |  4 ----
 2 files changed, 8 insertions(+), 44 deletions(-)

(limited to 'drivers')

diff --git a/drivers/net/ibmveth.c b/drivers/net/ibmveth.c
index d985b804a762..aea1598b2253 100644
--- a/drivers/net/ibmveth.c
+++ b/drivers/net/ibmveth.c
@@ -96,7 +96,6 @@ static void ibmveth_proc_unregister_driver(void);
 static void ibmveth_proc_register_adapter(struct ibmveth_adapter *adapter);
 static void ibmveth_proc_unregister_adapter(struct ibmveth_adapter *adapter);
 static irqreturn_t ibmveth_interrupt(int irq, void *dev_instance, struct pt_regs *regs);
-static inline void ibmveth_schedule_replenishing(struct ibmveth_adapter*);
 static inline void ibmveth_rxq_harvest_buffer(struct ibmveth_adapter *adapter);
 
 #ifdef CONFIG_PROC_FS
@@ -257,29 +256,7 @@ static void ibmveth_replenish_buffer_pool(struct ibmveth_adapter *adapter, struc
 	atomic_add(buffers_added, &(pool->available));
 }
 
-/* check if replenishing is needed.  */
-static inline int ibmveth_is_replenishing_needed(struct ibmveth_adapter *adapter)
-{
-	int i;
-
-	for(i = 0; i < IbmVethNumBufferPools; i++)
-		if(adapter->rx_buff_pool[i].active &&
-		  (atomic_read(&adapter->rx_buff_pool[i].available) <
-		   adapter->rx_buff_pool[i].threshold))
-			return 1;
-	return 0;
-}
-
-/* kick the replenish tasklet if we need replenishing and it isn't already running */
-static inline void ibmveth_schedule_replenishing(struct ibmveth_adapter *adapter)
-{
-	if(ibmveth_is_replenishing_needed(adapter) &&
-	   (atomic_dec_if_positive(&adapter->not_replenishing) == 0)) {
-		schedule_work(&adapter->replenish_task);
-	}
-}
-
-/* replenish tasklet routine */
+/* replenish routine */
 static void ibmveth_replenish_task(struct ibmveth_adapter *adapter) 
 {
 	int i;
@@ -292,10 +269,6 @@ static void ibmveth_replenish_task(struct ibmveth_adapter *adapter)
 						     &adapter->rx_buff_pool[i]);
 
 	adapter->rx_no_buffer = *(u64*)(((char*)adapter->buffer_list_addr) + 4096 - 8);
-
-	atomic_inc(&adapter->not_replenishing);
-
-	ibmveth_schedule_replenishing(adapter);
 }
 
 /* empty and free ana buffer pool - also used to do cleanup in error paths */
@@ -563,10 +536,10 @@ static int ibmveth_open(struct net_device *netdev)
 		return rc;
 	}
 
-	netif_start_queue(netdev);
+	ibmveth_debug_printk("initial replenish cycle\n");
+	ibmveth_replenish_task(adapter);
 
-	ibmveth_debug_printk("scheduling initial replenish cycle\n");
-	ibmveth_schedule_replenishing(adapter);
+	netif_start_queue(netdev);
 
 	ibmveth_debug_printk("open complete\n");
 
@@ -584,9 +557,6 @@ static int ibmveth_close(struct net_device *netdev)
 
 	free_irq(netdev->irq, netdev);
 
-	cancel_delayed_work(&adapter->replenish_task);
-	flush_scheduled_work();
-
 	do {
 		lpar_rc = h_free_logical_lan(adapter->vdev->unit_address);
 	} while (H_isLongBusy(lpar_rc) || (lpar_rc == H_Busy));
@@ -795,7 +765,7 @@ static int ibmveth_poll(struct net_device *netdev, int *budget)
 		}
 	} while(more_work && (frames_processed < max_frames_to_process));
 
-	ibmveth_schedule_replenishing(adapter);
+	ibmveth_replenish_task(adapter);
 
 	if(more_work) {
 		/* more work to do - return that we are not done yet */
@@ -931,8 +901,10 @@ static int ibmveth_change_mtu(struct net_device *dev, int new_mtu)
 
 	}
 
+	/* kick the interrupt handler so that the new buffer pools get
+	   replenished or deallocated */
+	ibmveth_interrupt(dev->irq, dev, NULL);
 
-	ibmveth_schedule_replenishing(adapter);
 	dev->mtu = new_mtu;
 	return 0;	
 }
@@ -1017,14 +989,10 @@ static int __devinit ibmveth_probe(struct vio_dev *dev, const struct vio_device_
 
 	ibmveth_debug_printk("adapter @ 0x%p\n", adapter);
 
-	INIT_WORK(&adapter->replenish_task, (void*)ibmveth_replenish_task, (void*)adapter);
-
 	adapter->buffer_list_dma = DMA_ERROR_CODE;
 	adapter->filter_list_dma = DMA_ERROR_CODE;
 	adapter->rx_queue.queue_dma = DMA_ERROR_CODE;
 
-	atomic_set(&adapter->not_replenishing, 1);
-
 	ibmveth_debug_printk("registering netdev...\n");
 
 	rc = register_netdev(netdev);
diff --git a/drivers/net/ibmveth.h b/drivers/net/ibmveth.h
index a5d27a9cdf1f..a3ea02937d63 100644
--- a/drivers/net/ibmveth.h
+++ b/drivers/net/ibmveth.h
@@ -118,10 +118,6 @@ struct ibmveth_adapter {
     dma_addr_t filter_list_dma;
     struct ibmveth_buff_pool rx_buff_pool[IbmVethNumBufferPools];
     struct ibmveth_rx_q rx_queue;
-    atomic_t not_replenishing;
-
-    /* helper tasks */
-    struct work_struct replenish_task;
 
     /* adapter specific stats */
     u64 replenish_task_cycles;
-- 
cgit v1.2.3


From 60296d9e4be1cd9e096f7804ce6e839e0cbd97cf Mon Sep 17 00:00:00 2001
From: Santiago Leon <santil@us.ibm.com>
Date: Wed, 26 Oct 2005 10:47:16 -0600
Subject: [PATCH] ibmveth lockless TX

This patch adds the lockless TX feature to the ibmveth driver.  The
hypervisor has its own locking so the only change that is necessary is
to protect the statistics counters.

Signed-off-by: Santiago Leon <santil@us.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
---
 drivers/net/ibmveth.c | 44 +++++++++++++++++++++++++++++---------------
 drivers/net/ibmveth.h |  1 +
 2 files changed, 30 insertions(+), 15 deletions(-)

(limited to 'drivers')

diff --git a/drivers/net/ibmveth.c b/drivers/net/ibmveth.c
index aea1598b2253..987bcba01889 100644
--- a/drivers/net/ibmveth.c
+++ b/drivers/net/ibmveth.c
@@ -621,12 +621,18 @@ static int ibmveth_start_xmit(struct sk_buff *skb, struct net_device *netdev)
 	unsigned long lpar_rc;
 	int nfrags = 0, curfrag;
 	unsigned long correlator;
+	unsigned long flags;
 	unsigned int retry_count;
+	unsigned int tx_dropped = 0;
+	unsigned int tx_bytes = 0;
+	unsigned int tx_packets = 0;
+	unsigned int tx_send_failed = 0;
+	unsigned int tx_map_failed = 0;
+
 
 	if ((skb_shinfo(skb)->nr_frags + 1) > IbmVethMaxSendFrags) {
-		adapter->stats.tx_dropped++;
-		dev_kfree_skb(skb);
-		return 0;
+		tx_dropped++;
+		goto out;
 	}
 
 	memset(&desc, 0, sizeof(desc));
@@ -645,10 +651,9 @@ static int ibmveth_start_xmit(struct sk_buff *skb, struct net_device *netdev)
 
 	if(dma_mapping_error(desc[0].fields.address)) {
 		ibmveth_error_printk("tx: unable to map initial fragment\n");
-		adapter->tx_map_failed++;
-		adapter->stats.tx_dropped++;
-		dev_kfree_skb(skb);
-		return 0;
+		tx_map_failed++;
+		tx_dropped++;
+		goto out;
 	}
 
 	curfrag = nfrags;
@@ -665,8 +670,8 @@ static int ibmveth_start_xmit(struct sk_buff *skb, struct net_device *netdev)
 
 		if(dma_mapping_error(desc[curfrag+1].fields.address)) {
 			ibmveth_error_printk("tx: unable to map fragment %d\n", curfrag);
-			adapter->tx_map_failed++;
-			adapter->stats.tx_dropped++;
+			tx_map_failed++;
+			tx_dropped++;
 			/* Free all the mappings we just created */
 			while(curfrag < nfrags) {
 				dma_unmap_single(&adapter->vdev->dev,
@@ -675,8 +680,7 @@ static int ibmveth_start_xmit(struct sk_buff *skb, struct net_device *netdev)
 						 DMA_TO_DEVICE);
 				curfrag++;
 			}
-			dev_kfree_skb(skb);
-			return 0;
+			goto out;
 		}
 	}
 
@@ -701,11 +705,11 @@ static int ibmveth_start_xmit(struct sk_buff *skb, struct net_device *netdev)
 			ibmveth_error_printk("tx: desc[%i] valid=%d, len=%d, address=0x%d\n", i,
 					     desc[i].fields.valid, desc[i].fields.length, desc[i].fields.address);
 		}
-		adapter->tx_send_failed++;
-		adapter->stats.tx_dropped++;
+		tx_send_failed++;
+		tx_dropped++;
 	} else {
-		adapter->stats.tx_packets++;
-		adapter->stats.tx_bytes += skb->len;
+		tx_packets++;
+		tx_bytes += skb->len;
 		netdev->trans_start = jiffies;
 	}
 
@@ -715,6 +719,14 @@ static int ibmveth_start_xmit(struct sk_buff *skb, struct net_device *netdev)
 				desc[nfrags].fields.length, DMA_TO_DEVICE);
 	} while(--nfrags >= 0);
 
+out:	spin_lock_irqsave(&adapter->stats_lock, flags);
+	adapter->stats.tx_dropped += tx_dropped;
+	adapter->stats.tx_bytes += tx_bytes;
+	adapter->stats.tx_packets += tx_packets;
+	adapter->tx_send_failed += tx_send_failed;
+	adapter->tx_map_failed += tx_map_failed;
+	spin_unlock_irqrestore(&adapter->stats_lock, flags);
+
 	dev_kfree_skb(skb);
 	return 0;
 }
@@ -980,6 +992,8 @@ static int __devinit ibmveth_probe(struct vio_dev *dev, const struct vio_device_
 	netdev->ethtool_ops           = &netdev_ethtool_ops;
 	netdev->change_mtu         = ibmveth_change_mtu;
 	SET_NETDEV_DEV(netdev, &dev->dev);
+ 	netdev->features |= NETIF_F_LLTX; 
+	spin_lock_init(&adapter->stats_lock);
 
 	memcpy(&netdev->dev_addr, &adapter->mac_addr, netdev->addr_len);
 
diff --git a/drivers/net/ibmveth.h b/drivers/net/ibmveth.h
index a3ea02937d63..46919a814fca 100644
--- a/drivers/net/ibmveth.h
+++ b/drivers/net/ibmveth.h
@@ -131,6 +131,7 @@ struct ibmveth_adapter {
     u64 tx_linearize_failed;
     u64 tx_map_failed;
     u64 tx_send_failed;
+    spinlock_t stats_lock;
 };
 
 struct ibmveth_buf_desc_fields {	
-- 
cgit v1.2.3


From 82702d37a559cf94fe238cd3f8ef63cf7fa699a9 Mon Sep 17 00:00:00 2001
From: Santiago Leon <santil@us.ibm.com>
Date: Wed, 26 Oct 2005 10:47:23 -0600
Subject: [PATCH] ibmveth fix failed addbuf

This patch fixes a bug that happens when the hypervisor can't add a
buffer.  The old code wrote IBM_VETH_INVALID_MAP into the free_map
array, so next time the index was used, a ibmveth_assert() caught it and
called BUG().  The patch writes the right value into the free_map array
so that the index can be reused.

Signed-off-by: Santiago Leon <santil@us.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
---
 drivers/net/ibmveth.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers')

diff --git a/drivers/net/ibmveth.c b/drivers/net/ibmveth.c
index 987bcba01889..f5819527ec9d 100644
--- a/drivers/net/ibmveth.c
+++ b/drivers/net/ibmveth.c
@@ -237,7 +237,7 @@ static void ibmveth_replenish_buffer_pool(struct ibmveth_adapter *adapter, struc
 		lpar_rc = h_add_logical_lan_buffer(adapter->vdev->unit_address, desc.desc);
 		    
 		if(lpar_rc != H_Success) {
-			pool->free_map[free_index] = IBM_VETH_INVALID_MAP;
+			pool->free_map[free_index] = index;
 			pool->skbuff[index] = NULL;
 			pool->consumer_index--;
 			dma_unmap_single(&adapter->vdev->dev,
-- 
cgit v1.2.3


From d89a64bedf956ef0b406018a7cb76e027fe3e751 Mon Sep 17 00:00:00 2001
From: Komuro <komurojun-mbn@nifty.com>
Date: Fri, 28 Oct 2005 16:09:54 -0400
Subject: pcnet_cs: fix mii init code for older DL10019 based cards

Some older DL10019 based cards need to setup
the auto-negotiation-advertisement register
to advertise 100Full,100Half,10Full and 10Half.

Signed-off-by: <komurojun-mbn@nifty.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
---
 drivers/net/pcmcia/pcnet_cs.c | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'drivers')

diff --git a/drivers/net/pcmcia/pcnet_cs.c b/drivers/net/pcmcia/pcnet_cs.c
index 9f22d138e3ad..818c185d6438 100644
--- a/drivers/net/pcmcia/pcnet_cs.c
+++ b/drivers/net/pcmcia/pcnet_cs.c
@@ -1020,6 +1020,12 @@ static void set_misc_reg(struct net_device *dev)
 	} else {
 	    outb(full_duplex ? 4 : 0, nic_base + DLINK_DIAG);
 	}
+    } else if (info->flags & IS_DL10019) {
+	/* Advertise 100F, 100H, 10F, 10H */
+	mdio_write(nic_base + DLINK_GPIO, info->eth_phy, 4, 0x01e1);
+	/* Restart MII autonegotiation */
+	mdio_write(nic_base + DLINK_GPIO, info->eth_phy, 0, 0x0000);
+	mdio_write(nic_base + DLINK_GPIO, info->eth_phy, 0, 0x1200);
     }
 }
 
-- 
cgit v1.2.3


From 008d55903a1e9e179ff1d366dfcfa9b72abd116d Mon Sep 17 00:00:00 2001
From: Roger While <simrw@sim-basis.de>
Date: Fri, 28 Oct 2005 16:11:49 -0400
Subject: [wireless prism54] Fix frame length

prism54 is leaking information when passing transmits to the firmware.
There is no requirement to adjust the length to >= ETH_ZLEN.
Just pass the skb length (after possible adjustment).

Signed-off-by: Roger While <simrw@sim-basis.de>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
---
 drivers/net/wireless/prism54/islpci_eth.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

(limited to 'drivers')

diff --git a/drivers/net/wireless/prism54/islpci_eth.c b/drivers/net/wireless/prism54/islpci_eth.c
index 5952e9960499..0975dd4ed77d 100644
--- a/drivers/net/wireless/prism54/islpci_eth.c
+++ b/drivers/net/wireless/prism54/islpci_eth.c
@@ -97,12 +97,6 @@ islpci_eth_transmit(struct sk_buff *skb, struct net_device *ndev)
 	/* lock the driver code */
 	spin_lock_irqsave(&priv->slock, flags);
 
-	/* determine the amount of fragments needed to store the frame */
-
-	frame_size = skb->len < ETH_ZLEN ? ETH_ZLEN : skb->len;
-	if (init_wds)
-		frame_size += 6;
-
 	/* check whether the destination queue has enough fragments for the frame */
 	curr_frag = le32_to_cpu(cb->driver_curr_frag[ISL38XX_CB_TX_DATA_LQ]);
 	if (unlikely(curr_frag - priv->free_data_tx >= ISL38XX_CB_TX_QSIZE)) {
@@ -213,6 +207,7 @@ islpci_eth_transmit(struct sk_buff *skb, struct net_device *ndev)
 	/* store the skb address for future freeing  */
 	priv->data_low_tx[index] = skb;
 	/* set the proper fragment start address and size information */
+	frame_size = skb->len;
 	fragment->size = cpu_to_le16(frame_size);
 	fragment->flags = cpu_to_le16(0);	/* set to 1 if more fragments */
 	fragment->address = cpu_to_le32(pci_map_address);
-- 
cgit v1.2.3


From 9eb343aeb3e106c1e4c07e2863f45b2c121b3b78 Mon Sep 17 00:00:00 2001
From: Akinobu Mita <mita@miraclelinux.com>
Date: Fri, 21 Oct 2005 19:06:42 +0900
Subject: [PATCH] s2io: kconfig help fix

The documentation about s2io is available at
Documentation/networking/s2io.txt.

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
---
 drivers/net/Kconfig | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'drivers')

diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 5148d47492a0..8fa0e26fa805 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -2201,8 +2201,8 @@ config S2IO
 	depends on PCI
 	---help---
 	  This driver supports the 10Gbe XFrame NIC of S2IO. 
-	  For help regarding driver compilation, installation and 
-	  tuning please look into ~/drivers/net/s2io/README.txt.
+	  More specific information on configuring the driver is in 
+	  <file:Documentation/networking/s2io.txt>.
 
 config S2IO_NAPI
 	bool "Use Rx Polling (NAPI) (EXPERIMENTAL)"
-- 
cgit v1.2.3


From adf6e00064ebcd3d82009ba6ef66f489f0885ebd Mon Sep 17 00:00:00 2001
From: Matthew Wilcox <matthew@wil.cx>
Date: Tue, 4 Oct 2005 11:25:17 -0600
Subject: [PATCH] b44 reports wrong advertised flags

Looks like someone used the MII constants instead of the ethtool constants.

Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
---
 drivers/net/b44.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

(limited to 'drivers')

diff --git a/drivers/net/b44.c b/drivers/net/b44.c
index 282ebd15f011..225d14fd9239 100644
--- a/drivers/net/b44.c
+++ b/drivers/net/b44.c
@@ -1619,14 +1619,14 @@ static int b44_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
 
 	cmd->advertising = 0;
 	if (bp->flags & B44_FLAG_ADV_10HALF)
-		cmd->advertising |= ADVERTISE_10HALF;
+		cmd->advertising |= ADVERTISED_10baseT_Half;
 	if (bp->flags & B44_FLAG_ADV_10FULL)
-		cmd->advertising |= ADVERTISE_10FULL;
+		cmd->advertising |= ADVERTISED_10baseT_Full;
 	if (bp->flags & B44_FLAG_ADV_100HALF)
-		cmd->advertising |= ADVERTISE_100HALF;
+		cmd->advertising |= ADVERTISED_100baseT_Half;
 	if (bp->flags & B44_FLAG_ADV_100FULL)
-		cmd->advertising |= ADVERTISE_100FULL;
-	cmd->advertising |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
+		cmd->advertising |= ADVERTISED_100baseT_Full;
+	cmd->advertising |= ADVERTISED_Pause | ADVERTISED_Asym_Pause;
 	cmd->speed = (bp->flags & B44_FLAG_100_BASE_T) ?
 		SPEED_100 : SPEED_10;
 	cmd->duplex = (bp->flags & B44_FLAG_FULL_DUPLEX) ?
-- 
cgit v1.2.3


From 8fee5f51a56aa7a67d955993572a2ae05d31a2c6 Mon Sep 17 00:00:00 2001
From: Aurelien Jarno <aurelien@aurel32.net>
Date: Wed, 5 Oct 2005 23:29:58 +0200
Subject: [PATCH] sis190.c: fix multicast MAC filter

Here is a patch that changes the way the MAC filter is computed for the
multicast addresses. The computation is taken from the SiS GPL driver.

This patch is necessary to get IPv6 working.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
---
 drivers/net/sis190.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers')

diff --git a/drivers/net/sis190.c b/drivers/net/sis190.c
index 92f75529eff8..478791e09bf7 100644
--- a/drivers/net/sis190.c
+++ b/drivers/net/sis190.c
@@ -842,7 +842,7 @@ static void sis190_set_rx_mode(struct net_device *dev)
 		for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count;
 		     i++, mclist = mclist->next) {
 			int bit_nr =
-				ether_crc(ETH_ALEN, mclist->dmi_addr) >> 26;
+				ether_crc(ETH_ALEN, mclist->dmi_addr) & 0x3f;
 			mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31);
 			rx_mode |= AcceptMulticast;
 		}
-- 
cgit v1.2.3


From 99e1baf869cf20791e66e38facd51d14b28551f8 Mon Sep 17 00:00:00 2001
From: Nicolas Pitre <nico@cam.org>
Date: Wed, 5 Oct 2005 11:10:24 -0400
Subject: [PATCH] smc91x: shut down power after probing

If the interface is not used right away after being probed it wastes
power needlessly. Noted by Holger Schurig.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
---
 drivers/net/smc91x.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'drivers')

diff --git a/drivers/net/smc91x.c b/drivers/net/smc91x.c
index 1438fdd20826..c5bc8ae84dd3 100644
--- a/drivers/net/smc91x.c
+++ b/drivers/net/smc91x.c
@@ -1983,6 +1983,10 @@ static int __init smc_probe(struct net_device *dev, void __iomem *ioaddr)
 	if (lp->version >= (CHIP_91100 << 4))
 		smc_phy_detect(dev);
 
+	/* then shut everything down to save power */
+	smc_shutdown(dev);
+	smc_phy_powerdown(dev);
+
 	/* Set default parameters */
 	lp->msg_enable = NETIF_MSG_LINK;
 	lp->ctl_rfduplx = 0;
-- 
cgit v1.2.3


From 712cb1ebb1653538527500165d8382ca48a7fca1 Mon Sep 17 00:00:00 2001
From: Deepak Saxena <dsaxena@plexity.net>
Date: Sun, 23 Oct 2005 13:41:35 -0700
Subject: [PATCH] Fix CS89x0 KConfig for IXDP2X01

IXDP2x01 systems can be built without PCI network cards, so we should not
require NET_PCI to build CS89x0 on these systems.

Signed-off-by: Deepak Saxena <dsaxena@plexity.net>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
---
 drivers/net/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers')

diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 8fa0e26fa805..814a93b8c903 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -1338,7 +1338,7 @@ config FORCEDETH
 
 config CS89x0
 	tristate "CS89x0 support"
-	depends on (NET_PCI && (ISA || ARCH_IXDP2X01)) || ARCH_PNX0105
+	depends on (NET_PCI && ISA) || ARCH_PNX0105 || ARCH_IXDP2X01
 	---help---
 	  Support for CS89x0 chipset based Ethernet cards. If you have a
 	  network (Ethernet) card of this type, say Y and read the
-- 
cgit v1.2.3


From d8840ac907c7943bc7e196b11812adfa95cb28ef Mon Sep 17 00:00:00 2001
From: Alexey Dobriyan <adobriyan@gmail.com>
Date: Fri, 7 Oct 2005 02:05:23 +0400
Subject: [PATCH] starfire: free_irq() on error path of netdev_open()

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
---
 drivers/net/starfire.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'drivers')

diff --git a/drivers/net/starfire.c b/drivers/net/starfire.c
index efdb179ecc8c..38b2b0a3ce96 100644
--- a/drivers/net/starfire.c
+++ b/drivers/net/starfire.c
@@ -1091,8 +1091,10 @@ static int netdev_open(struct net_device *dev)
 		rx_ring_size = sizeof(struct starfire_rx_desc) * RX_RING_SIZE;
 		np->queue_mem_size = tx_done_q_size + rx_done_q_size + tx_ring_size + rx_ring_size;
 		np->queue_mem = pci_alloc_consistent(np->pci_dev, np->queue_mem_size, &np->queue_mem_dma);
-		if (np->queue_mem == 0)
+		if (np->queue_mem == NULL) {
+			free_irq(dev->irq, dev);
 			return -ENOMEM;
+		}
 
 		np->tx_done_q     = np->queue_mem;
 		np->tx_done_q_dma = np->queue_mem_dma;
-- 
cgit v1.2.3


From 48257c4f168e5d040394aeca4d37b59f68e0d36b Mon Sep 17 00:00:00 2001
From: Pantelis Antoniou <pantelis.antoniou@gmail.com>
Date: Fri, 28 Oct 2005 16:25:58 -0400
Subject: Add fs_enet ethernet network driver, for several embedded platforms.

---
 drivers/net/Kconfig                |    1 +
 drivers/net/Makefile               |    3 +
 drivers/net/fs_enet/Kconfig        |   20 +
 drivers/net/fs_enet/Makefile       |   10 +
 drivers/net/fs_enet/fs_enet-main.c | 1226 ++++++++++++++++++++++++++++++++++++
 drivers/net/fs_enet/fs_enet-mii.c  |  507 +++++++++++++++
 drivers/net/fs_enet/fs_enet.h      |  245 +++++++
 drivers/net/fs_enet/mac-fcc.c      |  578 +++++++++++++++++
 drivers/net/fs_enet/mac-fec.c      |  653 +++++++++++++++++++
 drivers/net/fs_enet/mac-scc.c      |  524 +++++++++++++++
 drivers/net/fs_enet/mii-bitbang.c  |  405 ++++++++++++
 drivers/net/fs_enet/mii-fixed.c    |   92 +++
 include/linux/fs_enet_pd.h         |  136 ++++
 13 files changed, 4400 insertions(+)
 create mode 100644 drivers/net/fs_enet/Kconfig
 create mode 100644 drivers/net/fs_enet/Makefile
 create mode 100644 drivers/net/fs_enet/fs_enet-main.c
 create mode 100644 drivers/net/fs_enet/fs_enet-mii.c
 create mode 100644 drivers/net/fs_enet/fs_enet.h
 create mode 100644 drivers/net/fs_enet/mac-fcc.c
 create mode 100644 drivers/net/fs_enet/mac-fec.c
 create mode 100644 drivers/net/fs_enet/mac-scc.c
 create mode 100644 drivers/net/fs_enet/mii-bitbang.c
 create mode 100644 drivers/net/fs_enet/mii-fixed.c
 create mode 100644 include/linux/fs_enet_pd.h

(limited to 'drivers')

diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 814a93b8c903..27732fdeeea4 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -1775,6 +1775,7 @@ config NE_H8300
 	  controller on the Renesas H8/300 processor.
 
 source "drivers/net/fec_8xx/Kconfig"
+source "drivers/net/fs_enet/Kconfig"
 
 endmenu
 
diff --git a/drivers/net/Makefile b/drivers/net/Makefile
index 1a84e0435f64..7c313cb341b8 100644
--- a/drivers/net/Makefile
+++ b/drivers/net/Makefile
@@ -203,3 +203,6 @@ obj-$(CONFIG_IRDA) += irda/
 obj-$(CONFIG_ETRAX_ETHERNET) += cris/
 
 obj-$(CONFIG_NETCONSOLE) += netconsole.o
+
+obj-$(CONFIG_FS_ENET) += fs_enet/
+
diff --git a/drivers/net/fs_enet/Kconfig b/drivers/net/fs_enet/Kconfig
new file mode 100644
index 000000000000..6aaee67dd4b7
--- /dev/null
+++ b/drivers/net/fs_enet/Kconfig
@@ -0,0 +1,20 @@
+config FS_ENET
+       tristate "Freescale Ethernet Driver"
+       depends on NET_ETHERNET && (CPM1 || CPM2)
+       select MII
+
+config FS_ENET_HAS_SCC
+	bool "Chip has an SCC usable for ethernet"
+	depends on FS_ENET && (CPM1 || CPM2)
+	default y
+
+config FS_ENET_HAS_FCC
+	bool "Chip has an FCC usable for ethernet"
+	depends on FS_ENET && CPM2
+	default y
+
+config FS_ENET_HAS_FEC
+	bool "Chip has an FEC usable for ethernet"
+	depends on FS_ENET && CPM1
+	default y
+
diff --git a/drivers/net/fs_enet/Makefile b/drivers/net/fs_enet/Makefile
new file mode 100644
index 000000000000..d6dd3f2fb43e
--- /dev/null
+++ b/drivers/net/fs_enet/Makefile
@@ -0,0 +1,10 @@
+#
+# Makefile for the Freescale Ethernet controllers
+#
+
+obj-$(CONFIG_FS_ENET) += fs_enet.o
+
+obj-$(CONFIG_8xx) += mac-fec.o mac-scc.o
+obj-$(CONFIG_8260) += mac-fcc.o
+
+fs_enet-objs := fs_enet-main.o fs_enet-mii.o mii-bitbang.o mii-fixed.o
diff --git a/drivers/net/fs_enet/fs_enet-main.c b/drivers/net/fs_enet/fs_enet-main.c
new file mode 100644
index 000000000000..44fac7373289
--- /dev/null
+++ b/drivers/net/fs_enet/fs_enet-main.c
@@ -0,0 +1,1226 @@
+/*
+ * Combined Ethernet driver for Motorola MPC8xx and MPC82xx.
+ *
+ * Copyright (c) 2003 Intracom S.A. 
+ *  by Pantelis Antoniou <panto@intracom.gr>
+ * 
+ * 2005 (c) MontaVista Software, Inc. 
+ * Vitaly Bordug <vbordug@ru.mvista.com>
+ *
+ * Heavily based on original FEC driver by Dan Malek <dan@embeddededge.com>
+ * and modifications by Joakim Tjernlund <joakim.tjernlund@lumentis.se>
+ *
+ * This file is licensed under the terms of the GNU General Public License 
+ * version 2. This program is licensed "as is" without any warranty of any 
+ * kind, whether express or implied.
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/sched.h>
+#include <linux/string.h>
+#include <linux/ptrace.h>
+#include <linux/errno.h>
+#include <linux/ioport.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/spinlock.h>
+#include <linux/mii.h>
+#include <linux/ethtool.h>
+#include <linux/bitops.h>
+#include <linux/fs.h>
+
+#include <linux/vmalloc.h>
+#include <asm/pgtable.h>
+
+#include <asm/pgtable.h>
+#include <asm/irq.h>
+#include <asm/uaccess.h>
+
+#include "fs_enet.h"
+
+/*************************************************/
+
+static char version[] __devinitdata =
+    DRV_MODULE_NAME ".c:v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")" "\n";
+
+MODULE_AUTHOR("Pantelis Antoniou <panto@intracom.gr>");
+MODULE_DESCRIPTION("Freescale Ethernet Driver");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_MODULE_VERSION);
+
+MODULE_PARM(fs_enet_debug, "i");
+MODULE_PARM_DESC(fs_enet_debug,
+		 "Freescale bitmapped debugging message enable value");
+
+int fs_enet_debug = -1;		/* -1 == use FS_ENET_DEF_MSG_ENABLE as value */
+
+static void fs_set_multicast_list(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+
+	(*fep->ops->set_multicast_list)(dev);
+}
+
+/* NAPI receive function */
+static int fs_enet_rx_napi(struct net_device *dev, int *budget)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	const struct fs_platform_info *fpi = fep->fpi;
+	cbd_t *bdp;
+	struct sk_buff *skb, *skbn, *skbt;
+	int received = 0;
+	u16 pkt_len, sc;
+	int curidx;
+	int rx_work_limit = 0;	/* pacify gcc */
+
+	rx_work_limit = min(dev->quota, *budget);
+
+	if (!netif_running(dev))
+		return 0;
+
+	/*
+	 * First, grab all of the stats for the incoming packet.
+	 * These get messed up if we get called due to a busy condition.
+	 */
+	bdp = fep->cur_rx;
+
+	/* clear RX status bits for napi*/
+	(*fep->ops->napi_clear_rx_event)(dev);
+
+	while (((sc = CBDR_SC(bdp)) & BD_ENET_RX_EMPTY) == 0) {
+
+		curidx = bdp - fep->rx_bd_base;
+
+		/*
+		 * Since we have allocated space to hold a complete frame,
+		 * the last indicator should be set.
+		 */
+		if ((sc & BD_ENET_RX_LAST) == 0)
+			printk(KERN_WARNING DRV_MODULE_NAME
+			       ": %s rcv is not +last\n",
+			       dev->name);
+
+		/*
+		 * Check for errors. 
+		 */
+		if (sc & (BD_ENET_RX_LG | BD_ENET_RX_SH | BD_ENET_RX_CL |
+			  BD_ENET_RX_NO | BD_ENET_RX_CR | BD_ENET_RX_OV)) {
+			fep->stats.rx_errors++;
+			/* Frame too long or too short. */
+			if (sc & (BD_ENET_RX_LG | BD_ENET_RX_SH))
+				fep->stats.rx_length_errors++;
+			/* Frame alignment */
+			if (sc & (BD_ENET_RX_NO | BD_ENET_RX_CL))
+				fep->stats.rx_frame_errors++;
+			/* CRC Error */
+			if (sc & BD_ENET_RX_CR)
+				fep->stats.rx_crc_errors++;
+			/* FIFO overrun */
+			if (sc & BD_ENET_RX_OV)
+				fep->stats.rx_crc_errors++;
+
+			skb = fep->rx_skbuff[curidx];
+
+			dma_unmap_single(fep->dev, skb->data,
+				L1_CACHE_ALIGN(PKT_MAXBUF_SIZE),
+				DMA_FROM_DEVICE);
+
+			skbn = skb;
+
+		} else {
+
+			/* napi, got packet but no quota */
+			if (--rx_work_limit < 0)
+				break;
+
+			skb = fep->rx_skbuff[curidx];
+
+			dma_unmap_single(fep->dev, skb->data,
+				L1_CACHE_ALIGN(PKT_MAXBUF_SIZE),
+				DMA_FROM_DEVICE);
+
+			/*
+			 * Process the incoming frame.
+			 */
+			fep->stats.rx_packets++;
+			pkt_len = CBDR_DATLEN(bdp) - 4;	/* remove CRC */
+			fep->stats.rx_bytes += pkt_len + 4;
+
+			if (pkt_len <= fpi->rx_copybreak) {
+				/* +2 to make IP header L1 cache aligned */
+				skbn = dev_alloc_skb(pkt_len + 2);
+				if (skbn != NULL) {
+					skb_reserve(skbn, 2);	/* align IP header */
+					memcpy(skbn->data, skb->data, pkt_len);
+					/* swap */
+					skbt = skb;
+					skb = skbn;
+					skbn = skbt;
+				}
+			} else
+				skbn = dev_alloc_skb(ENET_RX_FRSIZE);
+
+			if (skbn != NULL) {
+				skb->dev = dev;
+				skb_put(skb, pkt_len);	/* Make room */
+				skb->protocol = eth_type_trans(skb, dev);
+				received++;
+				netif_receive_skb(skb);
+			} else {
+				printk(KERN_WARNING DRV_MODULE_NAME
+				       ": %s Memory squeeze, dropping packet.\n",
+				       dev->name);
+				fep->stats.rx_dropped++;
+				skbn = skb;
+			}
+		}
+
+		fep->rx_skbuff[curidx] = skbn;
+		CBDW_BUFADDR(bdp, dma_map_single(fep->dev, skbn->data,
+			     L1_CACHE_ALIGN(PKT_MAXBUF_SIZE),
+			     DMA_FROM_DEVICE));
+		CBDW_DATLEN(bdp, 0);
+		CBDW_SC(bdp, (sc & ~BD_ENET_RX_STATS) | BD_ENET_RX_EMPTY);
+
+		/*
+		 * Update BD pointer to next entry. 
+		 */
+		if ((sc & BD_ENET_RX_WRAP) == 0)
+			bdp++;
+		else
+			bdp = fep->rx_bd_base;
+
+		(*fep->ops->rx_bd_done)(dev);
+	}
+
+	fep->cur_rx = bdp;
+
+	dev->quota -= received;
+	*budget -= received;
+
+	if (rx_work_limit < 0)
+		return 1;	/* not done */
+
+	/* done */
+	netif_rx_complete(dev);
+
+	(*fep->ops->napi_enable_rx)(dev);
+
+	return 0;
+}
+
+/* non NAPI receive function */
+static int fs_enet_rx_non_napi(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	const struct fs_platform_info *fpi = fep->fpi;
+	cbd_t *bdp;
+	struct sk_buff *skb, *skbn, *skbt;
+	int received = 0;
+	u16 pkt_len, sc;
+	int curidx;
+	/*
+	 * First, grab all of the stats for the incoming packet.
+	 * These get messed up if we get called due to a busy condition.
+	 */
+	bdp = fep->cur_rx;
+
+	while (((sc = CBDR_SC(bdp)) & BD_ENET_RX_EMPTY) == 0) {
+
+		curidx = bdp - fep->rx_bd_base;
+
+		/*
+		 * Since we have allocated space to hold a complete frame,
+		 * the last indicator should be set.
+		 */
+		if ((sc & BD_ENET_RX_LAST) == 0)
+			printk(KERN_WARNING DRV_MODULE_NAME
+			       ": %s rcv is not +last\n",
+			       dev->name);
+
+		/*
+		 * Check for errors. 
+		 */
+		if (sc & (BD_ENET_RX_LG | BD_ENET_RX_SH | BD_ENET_RX_CL |
+			  BD_ENET_RX_NO | BD_ENET_RX_CR | BD_ENET_RX_OV)) {
+			fep->stats.rx_errors++;
+			/* Frame too long or too short. */
+			if (sc & (BD_ENET_RX_LG | BD_ENET_RX_SH))
+				fep->stats.rx_length_errors++;
+			/* Frame alignment */
+			if (sc & (BD_ENET_RX_NO | BD_ENET_RX_CL))
+				fep->stats.rx_frame_errors++;
+			/* CRC Error */
+			if (sc & BD_ENET_RX_CR)
+				fep->stats.rx_crc_errors++;
+			/* FIFO overrun */
+			if (sc & BD_ENET_RX_OV)
+				fep->stats.rx_crc_errors++;
+
+			skb = fep->rx_skbuff[curidx];
+
+			dma_unmap_single(fep->dev, skb->data,
+				L1_CACHE_ALIGN(PKT_MAXBUF_SIZE),
+				DMA_FROM_DEVICE);
+
+			skbn = skb;
+
+		} else {
+
+			skb = fep->rx_skbuff[curidx];
+
+			dma_unmap_single(fep->dev, skb->data,
+				L1_CACHE_ALIGN(PKT_MAXBUF_SIZE),
+				DMA_FROM_DEVICE);
+
+			/*
+			 * Process the incoming frame.
+			 */
+			fep->stats.rx_packets++;
+			pkt_len = CBDR_DATLEN(bdp) - 4;	/* remove CRC */
+			fep->stats.rx_bytes += pkt_len + 4;
+
+			if (pkt_len <= fpi->rx_copybreak) {
+				/* +2 to make IP header L1 cache aligned */
+				skbn = dev_alloc_skb(pkt_len + 2);
+				if (skbn != NULL) {
+					skb_reserve(skbn, 2);	/* align IP header */
+					memcpy(skbn->data, skb->data, pkt_len);
+					/* swap */
+					skbt = skb;
+					skb = skbn;
+					skbn = skbt;
+				}
+			} else
+				skbn = dev_alloc_skb(ENET_RX_FRSIZE);
+
+			if (skbn != NULL) {
+				skb->dev = dev;
+				skb_put(skb, pkt_len);	/* Make room */
+				skb->protocol = eth_type_trans(skb, dev);
+				received++;
+				netif_rx(skb);
+			} else {
+				printk(KERN_WARNING DRV_MODULE_NAME
+				       ": %s Memory squeeze, dropping packet.\n",
+				       dev->name);
+				fep->stats.rx_dropped++;
+				skbn = skb;
+			}
+		}
+
+		fep->rx_skbuff[curidx] = skbn;
+		CBDW_BUFADDR(bdp, dma_map_single(fep->dev, skbn->data,
+			     L1_CACHE_ALIGN(PKT_MAXBUF_SIZE),
+			     DMA_FROM_DEVICE));
+		CBDW_DATLEN(bdp, 0);
+		CBDW_SC(bdp, (sc & ~BD_ENET_RX_STATS) | BD_ENET_RX_EMPTY);
+
+		/*
+		 * Update BD pointer to next entry. 
+		 */
+		if ((sc & BD_ENET_RX_WRAP) == 0)
+			bdp++;
+		else
+			bdp = fep->rx_bd_base;
+
+		(*fep->ops->rx_bd_done)(dev);
+	}
+
+	fep->cur_rx = bdp;
+
+	return 0;
+}
+
+static void fs_enet_tx(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	cbd_t *bdp;
+	struct sk_buff *skb;
+	int dirtyidx, do_wake, do_restart;
+	u16 sc;
+
+	spin_lock(&fep->lock);
+	bdp = fep->dirty_tx;
+
+	do_wake = do_restart = 0;
+	while (((sc = CBDR_SC(bdp)) & BD_ENET_TX_READY) == 0) {
+
+		dirtyidx = bdp - fep->tx_bd_base;
+
+		if (fep->tx_free == fep->tx_ring)
+			break;
+
+		skb = fep->tx_skbuff[dirtyidx];
+
+		/*
+		 * Check for errors. 
+		 */
+		if (sc & (BD_ENET_TX_HB | BD_ENET_TX_LC |
+			  BD_ENET_TX_RL | BD_ENET_TX_UN | BD_ENET_TX_CSL)) {
+
+			if (sc & BD_ENET_TX_HB)	/* No heartbeat */
+				fep->stats.tx_heartbeat_errors++;
+			if (sc & BD_ENET_TX_LC)	/* Late collision */
+				fep->stats.tx_window_errors++;
+			if (sc & BD_ENET_TX_RL)	/* Retrans limit */
+				fep->stats.tx_aborted_errors++;
+			if (sc & BD_ENET_TX_UN)	/* Underrun */
+				fep->stats.tx_fifo_errors++;
+			if (sc & BD_ENET_TX_CSL)	/* Carrier lost */
+				fep->stats.tx_carrier_errors++;
+
+			if (sc & (BD_ENET_TX_LC | BD_ENET_TX_RL | BD_ENET_TX_UN)) {
+				fep->stats.tx_errors++;
+				do_restart = 1;
+			}
+		} else
+			fep->stats.tx_packets++;
+
+		if (sc & BD_ENET_TX_READY)
+			printk(KERN_WARNING DRV_MODULE_NAME
+			       ": %s HEY! Enet xmit interrupt and TX_READY.\n",
+			       dev->name);
+
+		/*
+		 * Deferred means some collisions occurred during transmit,
+		 * but we eventually sent the packet OK.
+		 */
+		if (sc & BD_ENET_TX_DEF)
+			fep->stats.collisions++;
+
+		/* unmap */
+		dma_unmap_single(fep->dev, skb->data, skb->len, DMA_TO_DEVICE);
+
+		/*
+		 * Free the sk buffer associated with this last transmit. 
+		 */
+		dev_kfree_skb_irq(skb);
+		fep->tx_skbuff[dirtyidx] = NULL;
+
+		/*
+		 * Update pointer to next buffer descriptor to be transmitted. 
+		 */
+		if ((sc & BD_ENET_TX_WRAP) == 0)
+			bdp++;
+		else
+			bdp = fep->tx_bd_base;
+
+		/*
+		 * Since we have freed up a buffer, the ring is no longer
+		 * full.
+		 */
+		if (!fep->tx_free++)
+			do_wake = 1;
+	}
+
+	fep->dirty_tx = bdp;
+
+	if (do_restart)
+		(*fep->ops->tx_restart)(dev);
+
+	spin_unlock(&fep->lock);
+
+	if (do_wake)
+		netif_wake_queue(dev);
+}
+
+/*
+ * The interrupt handler.
+ * This is called from the MPC core interrupt.
+ */
+static irqreturn_t
+fs_enet_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+	struct net_device *dev = dev_id;
+	struct fs_enet_private *fep;
+	const struct fs_platform_info *fpi;
+	u32 int_events;
+	u32 int_clr_events;
+	int nr, napi_ok;
+	int handled;
+
+	fep = netdev_priv(dev);
+	fpi = fep->fpi;
+
+	nr = 0;
+	while ((int_events = (*fep->ops->get_int_events)(dev)) != 0) {
+
+		nr++;
+
+		int_clr_events = int_events;
+		if (fpi->use_napi)
+			int_clr_events &= ~fep->ev_napi_rx;
+
+		(*fep->ops->clear_int_events)(dev, int_clr_events);
+
+		if (int_events & fep->ev_err)
+			(*fep->ops->ev_error)(dev, int_events);
+
+		if (int_events & fep->ev_rx) {
+			if (!fpi->use_napi)
+				fs_enet_rx_non_napi(dev);
+			else {
+				napi_ok = netif_rx_schedule_prep(dev);
+
+				(*fep->ops->napi_disable_rx)(dev);
+				(*fep->ops->clear_int_events)(dev, fep->ev_napi_rx);
+
+				/* NOTE: it is possible for FCCs in NAPI mode    */
+				/* to submit a spurious interrupt while in poll  */
+				if (napi_ok)
+					__netif_rx_schedule(dev);
+			}
+		}
+
+		if (int_events & fep->ev_tx)
+			fs_enet_tx(dev);
+	}
+
+	handled = nr > 0;
+	return IRQ_RETVAL(handled);
+}
+
+void fs_init_bds(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	cbd_t *bdp;
+	struct sk_buff *skb;
+	int i;
+
+	fs_cleanup_bds(dev);
+
+	fep->dirty_tx = fep->cur_tx = fep->tx_bd_base;
+	fep->tx_free = fep->tx_ring;
+	fep->cur_rx = fep->rx_bd_base;
+
+	/*
+	 * Initialize the receive buffer descriptors. 
+	 */
+	for (i = 0, bdp = fep->rx_bd_base; i < fep->rx_ring; i++, bdp++) {
+		skb = dev_alloc_skb(ENET_RX_FRSIZE);
+		if (skb == NULL) {
+			printk(KERN_WARNING DRV_MODULE_NAME
+			       ": %s Memory squeeze, unable to allocate skb\n",
+			       dev->name);
+			break;
+		}
+		fep->rx_skbuff[i] = skb;
+		skb->dev = dev;
+		CBDW_BUFADDR(bdp,
+			dma_map_single(fep->dev, skb->data,
+				L1_CACHE_ALIGN(PKT_MAXBUF_SIZE),
+				DMA_FROM_DEVICE));
+		CBDW_DATLEN(bdp, 0);	/* zero */
+		CBDW_SC(bdp, BD_ENET_RX_EMPTY |
+			((i < fep->rx_ring - 1) ? 0 : BD_SC_WRAP));
+	}
+	/*
+	 * if we failed, fillup remainder 
+	 */
+	for (; i < fep->rx_ring; i++, bdp++) {
+		fep->rx_skbuff[i] = NULL;
+		CBDW_SC(bdp, (i < fep->rx_ring - 1) ? 0 : BD_SC_WRAP);
+	}
+
+	/*
+	 * ...and the same for transmit.  
+	 */
+	for (i = 0, bdp = fep->tx_bd_base; i < fep->tx_ring; i++, bdp++) {
+		fep->tx_skbuff[i] = NULL;
+		CBDW_BUFADDR(bdp, 0);
+		CBDW_DATLEN(bdp, 0);
+		CBDW_SC(bdp, (i < fep->tx_ring - 1) ? 0 : BD_SC_WRAP);
+	}
+}
+
+void fs_cleanup_bds(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	struct sk_buff *skb;
+	int i;
+
+	/*
+	 * Reset SKB transmit buffers.  
+	 */
+	for (i = 0; i < fep->tx_ring; i++) {
+		if ((skb = fep->tx_skbuff[i]) == NULL)
+			continue;
+
+		/* unmap */
+		dma_unmap_single(fep->dev, skb->data, skb->len, DMA_TO_DEVICE);
+
+		fep->tx_skbuff[i] = NULL;
+		dev_kfree_skb(skb);
+	}
+
+	/*
+	 * Reset SKB receive buffers 
+	 */
+	for (i = 0; i < fep->rx_ring; i++) {
+		if ((skb = fep->rx_skbuff[i]) == NULL)
+			continue;
+
+		/* unmap */
+		dma_unmap_single(fep->dev, skb->data,
+			L1_CACHE_ALIGN(PKT_MAXBUF_SIZE),
+			DMA_FROM_DEVICE);
+
+		fep->rx_skbuff[i] = NULL;
+
+		dev_kfree_skb(skb);
+	}
+}
+
+/**********************************************************************************/
+
+static int fs_enet_start_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	cbd_t *bdp;
+	int curidx;
+	u16 sc;
+	unsigned long flags;
+
+	spin_lock_irqsave(&fep->tx_lock, flags);
+
+	/*
+	 * Fill in a Tx ring entry 
+	 */
+	bdp = fep->cur_tx;
+
+	if (!fep->tx_free || (CBDR_SC(bdp) & BD_ENET_TX_READY)) {
+		netif_stop_queue(dev);
+		spin_unlock_irqrestore(&fep->tx_lock, flags);
+
+		/*
+		 * Ooops.  All transmit buffers are full.  Bail out.
+		 * This should not happen, since the tx queue should be stopped.
+		 */
+		printk(KERN_WARNING DRV_MODULE_NAME
+		       ": %s tx queue full!.\n", dev->name);
+		return NETDEV_TX_BUSY;
+	}
+
+	curidx = bdp - fep->tx_bd_base;
+	/*
+	 * Clear all of the status flags. 
+	 */
+	CBDC_SC(bdp, BD_ENET_TX_STATS);
+
+	/*
+	 * Save skb pointer. 
+	 */
+	fep->tx_skbuff[curidx] = skb;
+
+	fep->stats.tx_bytes += skb->len;
+
+	/*
+	 * Push the data cache so the CPM does not get stale memory data. 
+	 */
+	CBDW_BUFADDR(bdp, dma_map_single(fep->dev,
+				skb->data, skb->len, DMA_TO_DEVICE));
+	CBDW_DATLEN(bdp, skb->len);
+
+	dev->trans_start = jiffies;
+
+	/*
+	 * If this was the last BD in the ring, start at the beginning again. 
+	 */
+	if ((CBDR_SC(bdp) & BD_ENET_TX_WRAP) == 0)
+		fep->cur_tx++;
+	else
+		fep->cur_tx = fep->tx_bd_base;
+
+	if (!--fep->tx_free)
+		netif_stop_queue(dev);
+
+	/* Trigger transmission start */
+	sc = BD_ENET_TX_READY | BD_ENET_TX_INTR |
+	     BD_ENET_TX_LAST | BD_ENET_TX_TC;
+
+	/* note that while FEC does not have this bit
+	 * it marks it as available for software use
+	 * yay for hw reuse :) */
+	if (skb->len <= 60)
+		sc |= BD_ENET_TX_PAD;
+	CBDS_SC(bdp, sc);
+
+	(*fep->ops->tx_kickstart)(dev);
+
+	spin_unlock_irqrestore(&fep->tx_lock, flags);
+
+	return NETDEV_TX_OK;
+}
+
+static int fs_request_irq(struct net_device *dev, int irq, const char *name,
+		irqreturn_t (*irqf)(int irq, void *dev_id, struct pt_regs *regs))
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+
+	(*fep->ops->pre_request_irq)(dev, irq);
+	return request_irq(irq, irqf, SA_SHIRQ, name, dev);
+}
+
+static void fs_free_irq(struct net_device *dev, int irq)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+
+	free_irq(irq, dev);
+	(*fep->ops->post_free_irq)(dev, irq);
+}
+
+/**********************************************************************************/
+
+/* This interrupt occurs when the PHY detects a link change. */
+static irqreturn_t
+fs_mii_link_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+	struct net_device *dev = dev_id;
+	struct fs_enet_private *fep;
+	const struct fs_platform_info *fpi;
+
+	fep = netdev_priv(dev);
+	fpi = fep->fpi;
+
+	/*
+	 * Acknowledge the interrupt if possible. If we have not
+	 * found the PHY yet we can't process or acknowledge the
+	 * interrupt now. Instead we ignore this interrupt for now,
+	 * which we can do since it is edge triggered. It will be
+	 * acknowledged later by fs_enet_open().
+	 */
+	if (!fep->phy)
+		return IRQ_NONE;
+
+	fs_mii_ack_int(dev);
+	fs_mii_link_status_change_check(dev, 0);
+
+	return IRQ_HANDLED;
+}
+
+static void fs_timeout(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	unsigned long flags;
+	int wake = 0;
+
+	fep->stats.tx_errors++;
+
+	spin_lock_irqsave(&fep->lock, flags);
+
+	if (dev->flags & IFF_UP) {
+		(*fep->ops->stop)(dev);
+		(*fep->ops->restart)(dev);
+	}
+
+	wake = fep->tx_free && !(CBDR_SC(fep->cur_tx) & BD_ENET_TX_READY);
+	spin_unlock_irqrestore(&fep->lock, flags);
+
+	if (wake)
+		netif_wake_queue(dev);
+}
+
+static int fs_enet_open(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	const struct fs_platform_info *fpi = fep->fpi;
+	int r;
+
+	/* Install our interrupt handler. */
+	r = fs_request_irq(dev, fep->interrupt, "fs_enet-mac", fs_enet_interrupt);
+	if (r != 0) {
+		printk(KERN_ERR DRV_MODULE_NAME
+		       ": %s Could not allocate FEC IRQ!", dev->name);
+		return -EINVAL;
+	}
+
+	/* Install our phy interrupt handler */
+	if (fpi->phy_irq != -1) {
+
+		r = fs_request_irq(dev, fpi->phy_irq, "fs_enet-phy", fs_mii_link_interrupt);
+		if (r != 0) {
+			printk(KERN_ERR DRV_MODULE_NAME
+			       ": %s Could not allocate PHY IRQ!", dev->name);
+			fs_free_irq(dev, fep->interrupt);
+			return -EINVAL;
+		}
+	}
+
+	fs_mii_startup(dev);
+	netif_carrier_off(dev);
+	fs_mii_link_status_change_check(dev, 1);
+
+	return 0;
+}
+
+static int fs_enet_close(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	const struct fs_platform_info *fpi = fep->fpi;
+	unsigned long flags;
+
+	netif_stop_queue(dev);
+	netif_carrier_off(dev);
+	fs_mii_shutdown(dev);
+
+	spin_lock_irqsave(&fep->lock, flags);
+	(*fep->ops->stop)(dev);
+	spin_unlock_irqrestore(&fep->lock, flags);
+
+	/* release any irqs */
+	if (fpi->phy_irq != -1)
+		fs_free_irq(dev, fpi->phy_irq);
+	fs_free_irq(dev, fep->interrupt);
+
+	return 0;
+}
+
+static struct net_device_stats *fs_enet_get_stats(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	return &fep->stats;
+}
+
+/*************************************************************************/
+
+static void fs_get_drvinfo(struct net_device *dev,
+			    struct ethtool_drvinfo *info)
+{
+	strcpy(info->driver, DRV_MODULE_NAME);
+	strcpy(info->version, DRV_MODULE_VERSION);
+}
+
+static int fs_get_regs_len(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+
+	return (*fep->ops->get_regs_len)(dev);
+}
+
+static void fs_get_regs(struct net_device *dev, struct ethtool_regs *regs,
+			 void *p)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	unsigned long flags;
+	int r, len;
+
+	len = regs->len;
+
+	spin_lock_irqsave(&fep->lock, flags);
+	r = (*fep->ops->get_regs)(dev, p, &len);
+	spin_unlock_irqrestore(&fep->lock, flags);
+
+	if (r == 0)
+		regs->version = 0;
+}
+
+static int fs_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	unsigned long flags;
+	int rc;
+
+	spin_lock_irqsave(&fep->lock, flags);
+	rc = mii_ethtool_gset(&fep->mii_if, cmd);
+	spin_unlock_irqrestore(&fep->lock, flags);
+
+	return rc;
+}
+
+static int fs_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	unsigned long flags;
+	int rc;
+
+	spin_lock_irqsave(&fep->lock, flags);
+	rc = mii_ethtool_sset(&fep->mii_if, cmd);
+	spin_unlock_irqrestore(&fep->lock, flags);
+
+	return rc;
+}
+
+static int fs_nway_reset(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	return mii_nway_restart(&fep->mii_if);
+}
+
+static u32 fs_get_msglevel(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	return fep->msg_enable;
+}
+
+static void fs_set_msglevel(struct net_device *dev, u32 value)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	fep->msg_enable = value;
+}
+
+static struct ethtool_ops fs_ethtool_ops = {
+	.get_drvinfo = fs_get_drvinfo,
+	.get_regs_len = fs_get_regs_len,
+	.get_settings = fs_get_settings,
+	.set_settings = fs_set_settings,
+	.nway_reset = fs_nway_reset,
+	.get_link = ethtool_op_get_link,
+	.get_msglevel = fs_get_msglevel,
+	.set_msglevel = fs_set_msglevel,
+	.get_tx_csum = ethtool_op_get_tx_csum,
+	.set_tx_csum = ethtool_op_set_tx_csum,	/* local! */
+	.get_sg = ethtool_op_get_sg,
+	.set_sg = ethtool_op_set_sg,
+	.get_regs = fs_get_regs,
+};
+
+static int fs_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	struct mii_ioctl_data *mii = (struct mii_ioctl_data *)&rq->ifr_data;
+	unsigned long flags;
+	int rc;
+
+	if (!netif_running(dev))
+		return -EINVAL;
+
+	spin_lock_irqsave(&fep->lock, flags);
+	rc = generic_mii_ioctl(&fep->mii_if, mii, cmd, NULL);
+	spin_unlock_irqrestore(&fep->lock, flags);
+	return rc;
+}
+
+extern int fs_mii_connect(struct net_device *dev);
+extern void fs_mii_disconnect(struct net_device *dev);
+
+static struct net_device *fs_init_instance(struct device *dev,
+		const struct fs_platform_info *fpi)
+{
+	struct net_device *ndev = NULL;
+	struct fs_enet_private *fep = NULL;
+	int privsize, i, r, err = 0, registered = 0;
+
+	/* guard */
+	if ((unsigned int)fpi->fs_no >= FS_MAX_INDEX)
+		return ERR_PTR(-EINVAL);
+
+	privsize = sizeof(*fep) + (sizeof(struct sk_buff **) *
+			    (fpi->rx_ring + fpi->tx_ring));
+
+	ndev = alloc_etherdev(privsize);
+	if (!ndev) {
+		err = -ENOMEM;
+		goto err;
+	}
+	SET_MODULE_OWNER(ndev);
+
+	fep = netdev_priv(ndev);
+	memset(fep, 0, privsize);	/* clear everything */
+
+	fep->dev = dev;
+	dev_set_drvdata(dev, ndev);
+	fep->fpi = fpi;
+	if (fpi->init_ioports)
+		fpi->init_ioports();
+
+#ifdef CONFIG_FS_ENET_HAS_FEC
+	if (fs_get_fec_index(fpi->fs_no) >= 0)
+		fep->ops = &fs_fec_ops;
+#endif
+
+#ifdef CONFIG_FS_ENET_HAS_SCC
+	if (fs_get_scc_index(fpi->fs_no) >=0 )
+		fep->ops = &fs_scc_ops;
+#endif
+
+#ifdef CONFIG_FS_ENET_HAS_FCC
+	if (fs_get_fcc_index(fpi->fs_no) >= 0)
+		fep->ops = &fs_fcc_ops;
+#endif
+
+	if (fep->ops == NULL) {
+		printk(KERN_ERR DRV_MODULE_NAME
+		       ": %s No matching ops found (%d).\n",
+		       ndev->name, fpi->fs_no);
+		err = -EINVAL;
+		goto err;
+	}
+
+	r = (*fep->ops->setup_data)(ndev);
+	if (r != 0) {
+		printk(KERN_ERR DRV_MODULE_NAME
+		       ": %s setup_data failed\n",
+			ndev->name);
+		err = r;
+		goto err;
+	}
+
+	/* point rx_skbuff, tx_skbuff */
+	fep->rx_skbuff = (struct sk_buff **)&fep[1];
+	fep->tx_skbuff = fep->rx_skbuff + fpi->rx_ring;
+
+	/* init locks */
+	spin_lock_init(&fep->lock);
+	spin_lock_init(&fep->tx_lock);
+
+	/*
+	 * Set the Ethernet address. 
+	 */
+	for (i = 0; i < 6; i++)
+		ndev->dev_addr[i] = fpi->macaddr[i];
+	
+	r = (*fep->ops->allocate_bd)(ndev);
+	
+	if (fep->ring_base == NULL) {
+		printk(KERN_ERR DRV_MODULE_NAME
+		       ": %s buffer descriptor alloc failed (%d).\n", ndev->name, r);
+		err = r;
+		goto err;
+	}
+
+	/*
+	 * Set receive and transmit descriptor base.
+	 */
+	fep->rx_bd_base = fep->ring_base;
+	fep->tx_bd_base = fep->rx_bd_base + fpi->rx_ring;
+
+	/* initialize ring size variables */
+	fep->tx_ring = fpi->tx_ring;
+	fep->rx_ring = fpi->rx_ring;
+
+	/*
+	 * The FEC Ethernet specific entries in the device structure. 
+	 */
+	ndev->open = fs_enet_open;
+	ndev->hard_start_xmit = fs_enet_start_xmit;
+	ndev->tx_timeout = fs_timeout;
+	ndev->watchdog_timeo = 2 * HZ;
+	ndev->stop = fs_enet_close;
+	ndev->get_stats = fs_enet_get_stats;
+	ndev->set_multicast_list = fs_set_multicast_list;
+	if (fpi->use_napi) {
+		ndev->poll = fs_enet_rx_napi;
+		ndev->weight = fpi->napi_weight;
+	}
+	ndev->ethtool_ops = &fs_ethtool_ops;
+	ndev->do_ioctl = fs_ioctl;
+
+	init_timer(&fep->phy_timer_list);
+
+	netif_carrier_off(ndev);
+
+	err = register_netdev(ndev);
+	if (err != 0) {
+		printk(KERN_ERR DRV_MODULE_NAME
+		       ": %s register_netdev failed.\n", ndev->name);
+		goto err;
+	}
+	registered = 1;
+
+	err = fs_mii_connect(ndev);
+	if (err != 0) {
+		printk(KERN_ERR DRV_MODULE_NAME
+		       ": %s fs_mii_connect failed.\n", ndev->name);
+		goto err;
+	}
+
+	return ndev;
+
+      err:
+	if (ndev != NULL) {
+
+		if (registered)
+			unregister_netdev(ndev);
+
+		if (fep != NULL) {
+			(*fep->ops->free_bd)(ndev);
+			(*fep->ops->cleanup_data)(ndev);
+		}
+
+		free_netdev(ndev);
+	}
+
+	dev_set_drvdata(dev, NULL);
+
+	return ERR_PTR(err);
+}
+
+static int fs_cleanup_instance(struct net_device *ndev)
+{
+	struct fs_enet_private *fep;
+	const struct fs_platform_info *fpi;
+	struct device *dev;
+
+	if (ndev == NULL)
+		return -EINVAL;
+
+	fep = netdev_priv(ndev);
+	if (fep == NULL)
+		return -EINVAL;
+
+	fpi = fep->fpi;
+
+	fs_mii_disconnect(ndev);
+
+	unregister_netdev(ndev);
+
+	dma_free_coherent(fep->dev, (fpi->tx_ring + fpi->rx_ring) * sizeof(cbd_t),
+			  fep->ring_base, fep->ring_mem_addr);
+
+	/* reset it */
+	(*fep->ops->cleanup_data)(ndev);
+
+	dev = fep->dev;
+	if (dev != NULL) {
+		dev_set_drvdata(dev, NULL);
+		fep->dev = NULL;
+	}
+
+	free_netdev(ndev);
+
+	return 0;
+}
+
+/**************************************************************************************/
+
+/* handy pointer to the immap */
+void *fs_enet_immap = NULL;
+
+static int setup_immap(void)
+{
+	phys_addr_t paddr = 0;
+	unsigned long size = 0;
+
+#ifdef CONFIG_CPM1
+	paddr = IMAP_ADDR;
+	size = 0x10000;	/* map 64K */
+#endif
+
+#ifdef CONFIG_CPM2
+	paddr = CPM_MAP_ADDR;
+	size = 0x40000;	/* map 256 K */
+#endif
+	fs_enet_immap = ioremap(paddr, size);
+	if (fs_enet_immap == NULL)
+		return -EBADF;	/* XXX ahem; maybe just BUG_ON? */
+
+	return 0;
+}
+
+static void cleanup_immap(void)
+{
+	if (fs_enet_immap != NULL) {
+		iounmap(fs_enet_immap);
+		fs_enet_immap = NULL;
+	}
+}
+
+/**************************************************************************************/
+
+static int __devinit fs_enet_probe(struct device *dev)
+{
+	struct net_device *ndev;
+
+	/* no fixup - no device */
+	if (dev->platform_data == NULL) {
+		printk(KERN_INFO "fs_enet: "
+				"probe called with no platform data; "
+				"remove unused devices\n");
+		return -ENODEV;
+	}
+
+	ndev = fs_init_instance(dev, dev->platform_data);
+	if (IS_ERR(ndev))
+		return PTR_ERR(ndev);
+	return 0;
+}
+
+static int fs_enet_remove(struct device *dev)
+{
+	return fs_cleanup_instance(dev_get_drvdata(dev));
+}
+
+static struct device_driver fs_enet_fec_driver = {
+	.name	  	= "fsl-cpm-fec",
+	.bus		= &platform_bus_type,
+	.probe		= fs_enet_probe,
+	.remove		= fs_enet_remove,
+#ifdef CONFIG_PM
+/*	.suspend	= fs_enet_suspend,	TODO */
+/*	.resume		= fs_enet_resume,	TODO */
+#endif
+};
+
+static struct device_driver fs_enet_scc_driver = {
+	.name	  	= "fsl-cpm-scc",
+	.bus		= &platform_bus_type,
+	.probe		= fs_enet_probe,
+	.remove		= fs_enet_remove,
+#ifdef CONFIG_PM
+/*	.suspend	= fs_enet_suspend,	TODO */
+/*	.resume		= fs_enet_resume,	TODO */
+#endif
+};
+
+static struct device_driver fs_enet_fcc_driver = {
+	.name	  	= "fsl-cpm-fcc",
+	.bus		= &platform_bus_type,
+	.probe		= fs_enet_probe,
+	.remove		= fs_enet_remove,
+#ifdef CONFIG_PM
+/*	.suspend	= fs_enet_suspend,	TODO */
+/*	.resume		= fs_enet_resume,	TODO */
+#endif
+};
+
+static int __init fs_init(void)
+{
+	int r;
+
+	printk(KERN_INFO
+			"%s", version);
+
+	r = setup_immap();
+	if (r != 0)
+		return r;
+	r = driver_register(&fs_enet_fec_driver);
+	if (r != 0)
+		goto err;
+
+	r = driver_register(&fs_enet_fcc_driver);
+	if (r != 0)
+		goto err;
+
+	r = driver_register(&fs_enet_scc_driver);
+	if (r != 0)
+		goto err;
+
+	return 0;
+err:
+	cleanup_immap();
+	return r;
+	
+}
+
+static void __exit fs_cleanup(void)
+{
+	driver_unregister(&fs_enet_fec_driver);
+	driver_unregister(&fs_enet_fcc_driver);
+	driver_unregister(&fs_enet_scc_driver);
+	cleanup_immap();
+}
+
+/**************************************************************************************/
+
+module_init(fs_init);
+module_exit(fs_cleanup);
diff --git a/drivers/net/fs_enet/fs_enet-mii.c b/drivers/net/fs_enet/fs_enet-mii.c
new file mode 100644
index 000000000000..c6770377ef87
--- /dev/null
+++ b/drivers/net/fs_enet/fs_enet-mii.c
@@ -0,0 +1,507 @@
+/*
+ * Combined Ethernet driver for Motorola MPC8xx and MPC82xx.
+ *
+ * Copyright (c) 2003 Intracom S.A. 
+ *  by Pantelis Antoniou <panto@intracom.gr>
+ * 
+ * 2005 (c) MontaVista Software, Inc. 
+ * Vitaly Bordug <vbordug@ru.mvista.com>
+ *
+ * Heavily based on original FEC driver by Dan Malek <dan@embeddededge.com>
+ * and modifications by Joakim Tjernlund <joakim.tjernlund@lumentis.se>
+ *
+ * This file is licensed under the terms of the GNU General Public License 
+ * version 2. This program is licensed "as is" without any warranty of any 
+ * kind, whether express or implied.
+ */
+
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/string.h>
+#include <linux/ptrace.h>
+#include <linux/errno.h>
+#include <linux/ioport.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/spinlock.h>
+#include <linux/mii.h>
+#include <linux/ethtool.h>
+#include <linux/bitops.h>
+
+#include <asm/pgtable.h>
+#include <asm/irq.h>
+#include <asm/uaccess.h>
+
+#include "fs_enet.h"
+
+/*************************************************/
+
+/*
+ * Generic PHY support.
+ * Should work for all PHYs, but link change is detected by polling
+ */
+
+static void generic_timer_callback(unsigned long data)
+{
+	struct net_device *dev = (struct net_device *)data;
+	struct fs_enet_private *fep = netdev_priv(dev);
+
+	fep->phy_timer_list.expires = jiffies + HZ / 2;
+
+	add_timer(&fep->phy_timer_list);
+
+	fs_mii_link_status_change_check(dev, 0);
+}
+
+static void generic_startup(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+
+	fep->phy_timer_list.expires = jiffies + HZ / 2;	/* every 500ms */
+	fep->phy_timer_list.data = (unsigned long)dev;
+	fep->phy_timer_list.function = generic_timer_callback;
+	add_timer(&fep->phy_timer_list);
+}
+
+static void generic_shutdown(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+
+	del_timer_sync(&fep->phy_timer_list);
+}
+
+/* ------------------------------------------------------------------------- */
+/* The Davicom DM9161 is used on the NETTA board			     */
+
+/* register definitions */
+
+#define MII_DM9161_ANAR		4	/* Aux. Config Register         */
+#define MII_DM9161_ACR		16	/* Aux. Config Register         */
+#define MII_DM9161_ACSR		17	/* Aux. Config/Status Register  */
+#define MII_DM9161_10TCSR	18	/* 10BaseT Config/Status Reg.   */
+#define MII_DM9161_INTR		21	/* Interrupt Register           */
+#define MII_DM9161_RECR		22	/* Receive Error Counter Reg.   */
+#define MII_DM9161_DISCR	23	/* Disconnect Counter Register  */
+
+static void dm9161_startup(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+
+	fs_mii_write(dev, fep->mii_if.phy_id, MII_DM9161_INTR, 0x0000);
+	/* Start autonegotiation */
+	fs_mii_write(dev, fep->mii_if.phy_id, MII_BMCR, 0x1200);
+
+	set_current_state(TASK_UNINTERRUPTIBLE);
+	schedule_timeout(HZ*8);
+}
+
+static void dm9161_ack_int(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+
+	fs_mii_read(dev, fep->mii_if.phy_id, MII_DM9161_INTR);
+}
+
+static void dm9161_shutdown(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+
+	fs_mii_write(dev, fep->mii_if.phy_id, MII_DM9161_INTR, 0x0f00);
+}
+
+/**********************************************************************************/
+
+static const struct phy_info phy_info[] = {
+	{
+		.id = 0x00181b88,
+		.name = "DM9161",
+		.startup = dm9161_startup,
+		.ack_int = dm9161_ack_int,
+		.shutdown = dm9161_shutdown,
+	}, {
+		.id = 0,
+		.name = "GENERIC",
+		.startup = generic_startup,
+		.shutdown = generic_shutdown,
+	},
+};
+
+/**********************************************************************************/
+
+static int phy_id_detect(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	const struct fs_platform_info *fpi = fep->fpi;
+	struct fs_enet_mii_bus *bus = fep->mii_bus;
+	int i, r, start, end, phytype, physubtype;
+	const struct phy_info *phy;
+	int phy_hwid, phy_id;
+
+	phy_hwid = -1;
+	fep->phy = NULL;
+
+	/* auto-detect? */
+	if (fpi->phy_addr == -1) {
+		start = 1;
+		end = 32;
+	} else {		/* direct */
+		start = fpi->phy_addr;
+		end = start + 1;
+	}
+
+	for (phy_id = start; phy_id < end; phy_id++) {
+		/* skip already used phy addresses on this bus */ 
+		if (bus->usage_map & (1 << phy_id))
+			continue;
+		r = fs_mii_read(dev, phy_id, MII_PHYSID1);
+		if (r == -1 || (phytype = (r & 0xffff)) == 0xffff)
+			continue;
+		r = fs_mii_read(dev, phy_id, MII_PHYSID2);
+		if (r == -1 || (physubtype = (r & 0xffff)) == 0xffff)
+			continue;
+		phy_hwid = (phytype << 16) | physubtype;
+		if (phy_hwid != -1)
+			break;
+	}
+
+	if (phy_hwid == -1) {
+		printk(KERN_ERR DRV_MODULE_NAME
+		       ": %s No PHY detected! range=0x%02x-0x%02x\n",
+			dev->name, start, end);
+		return -1;
+	}
+
+	for (i = 0, phy = phy_info; i < ARRAY_SIZE(phy_info); i++, phy++)
+		if (phy->id == (phy_hwid >> 4) || phy->id == 0)
+			break;
+
+	if (i >= ARRAY_SIZE(phy_info)) {
+		printk(KERN_ERR DRV_MODULE_NAME
+		       ": %s PHY id 0x%08x is not supported!\n",
+		       dev->name, phy_hwid);
+		return -1;
+	}
+
+	fep->phy = phy;
+
+	/* mark this address as used */
+	bus->usage_map |= (1 << phy_id);
+
+	printk(KERN_INFO DRV_MODULE_NAME
+	       ": %s Phy @ 0x%x, type %s (0x%08x)%s\n",
+	       dev->name, phy_id, fep->phy->name, phy_hwid,
+	       fpi->phy_addr == -1 ? " (auto-detected)" : "");
+
+	return phy_id;
+}
+
+void fs_mii_startup(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+
+	if (fep->phy->startup)
+		(*fep->phy->startup) (dev);
+}
+
+void fs_mii_shutdown(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+
+	if (fep->phy->shutdown)
+		(*fep->phy->shutdown) (dev);
+}
+
+void fs_mii_ack_int(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+
+	if (fep->phy->ack_int)
+		(*fep->phy->ack_int) (dev);
+}
+
+#define MII_LINK	0x0001
+#define MII_HALF	0x0002
+#define MII_FULL	0x0004
+#define MII_BASE4	0x0008
+#define MII_10M		0x0010
+#define MII_100M	0x0020
+#define MII_1G		0x0040
+#define MII_10G		0x0080
+
+/* return full mii info at one gulp, with a usable form */
+static unsigned int mii_full_status(struct mii_if_info *mii)
+{
+	unsigned int status;
+	int bmsr, adv, lpa, neg;
+	struct fs_enet_private* fep = netdev_priv(mii->dev);
+	
+	/* first, a dummy read, needed to latch some MII phys */
+	(void)mii->mdio_read(mii->dev, mii->phy_id, MII_BMSR);
+	bmsr = mii->mdio_read(mii->dev, mii->phy_id, MII_BMSR);
+
+	/* no link */
+	if ((bmsr & BMSR_LSTATUS) == 0)
+		return 0;
+
+	status = MII_LINK;
+	
+	/* Lets look what ANEG says if it's supported - otherwize we shall
+	   take the right values from the platform info*/
+	if(!mii->force_media) {
+		/* autoneg not completed; don't bother */
+		if ((bmsr & BMSR_ANEGCOMPLETE) == 0)
+			return 0;
+
+		adv = (*mii->mdio_read)(mii->dev, mii->phy_id, MII_ADVERTISE);
+		lpa = (*mii->mdio_read)(mii->dev, mii->phy_id, MII_LPA);
+
+		neg = lpa & adv;
+	} else {
+		neg = fep->fpi->bus_info->lpa;
+	}
+
+	if (neg & LPA_100FULL)
+		status |= MII_FULL | MII_100M;
+	else if (neg & LPA_100BASE4)
+		status |= MII_FULL | MII_BASE4 | MII_100M;
+	else if (neg & LPA_100HALF)
+		status |= MII_HALF | MII_100M;
+	else if (neg & LPA_10FULL)
+		status |= MII_FULL | MII_10M;
+	else
+		status |= MII_HALF | MII_10M;
+	
+	return status;
+}
+
+void fs_mii_link_status_change_check(struct net_device *dev, int init_media)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	struct mii_if_info *mii = &fep->mii_if;
+	unsigned int mii_status;
+	int ok_to_print, link, duplex, speed;
+	unsigned long flags;
+
+	ok_to_print = netif_msg_link(fep);
+
+	mii_status = mii_full_status(mii);
+
+	if (!init_media && mii_status == fep->last_mii_status)
+		return;
+
+	fep->last_mii_status = mii_status;
+
+	link = !!(mii_status & MII_LINK);
+	duplex = !!(mii_status & MII_FULL);
+	speed = (mii_status & MII_100M) ? 100 : 10;
+
+	if (link == 0) {
+		netif_carrier_off(mii->dev);
+		netif_stop_queue(dev);
+		if (!init_media) {
+			spin_lock_irqsave(&fep->lock, flags);
+			(*fep->ops->stop)(dev);
+			spin_unlock_irqrestore(&fep->lock, flags);
+		}
+
+		if (ok_to_print)
+			printk(KERN_INFO "%s: link down\n", mii->dev->name);
+
+	} else {
+
+		mii->full_duplex = duplex;
+
+		netif_carrier_on(mii->dev);
+
+		spin_lock_irqsave(&fep->lock, flags);
+		fep->duplex = duplex;
+		fep->speed = speed;
+		(*fep->ops->restart)(dev);
+		spin_unlock_irqrestore(&fep->lock, flags);
+
+		netif_start_queue(dev);
+
+		if (ok_to_print)
+			printk(KERN_INFO "%s: link up, %dMbps, %s-duplex\n",
+			       dev->name, speed, duplex ? "full" : "half");
+	}
+}
+
+/**********************************************************************************/
+
+int fs_mii_read(struct net_device *dev, int phy_id, int location)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	struct fs_enet_mii_bus *bus = fep->mii_bus;
+
+	unsigned long flags;
+	int ret;
+
+	spin_lock_irqsave(&bus->mii_lock, flags);
+	ret = (*bus->mii_read)(bus, phy_id, location);
+	spin_unlock_irqrestore(&bus->mii_lock, flags);
+
+	return ret;
+}
+
+void fs_mii_write(struct net_device *dev, int phy_id, int location, int value)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	struct fs_enet_mii_bus *bus = fep->mii_bus;
+	unsigned long flags;
+
+	spin_lock_irqsave(&bus->mii_lock, flags);
+	(*bus->mii_write)(bus, phy_id, location, value);
+	spin_unlock_irqrestore(&bus->mii_lock, flags);
+}
+
+/*****************************************************************************/
+
+/* list of all registered mii buses */
+static LIST_HEAD(fs_mii_bus_list);
+
+static struct fs_enet_mii_bus *lookup_bus(int method, int id)
+{
+	struct list_head *ptr;
+	struct fs_enet_mii_bus *bus;
+
+	list_for_each(ptr, &fs_mii_bus_list) {
+		bus = list_entry(ptr, struct fs_enet_mii_bus, list);
+		if (bus->bus_info->method == method &&
+			bus->bus_info->id == id)
+			return bus;
+	}
+	return NULL;
+}
+
+static struct fs_enet_mii_bus *create_bus(const struct fs_mii_bus_info *bi)
+{
+	struct fs_enet_mii_bus *bus;
+	int ret = 0;
+
+	bus = kmalloc(sizeof(*bus), GFP_KERNEL);
+	if (bus == NULL) {
+		ret = -ENOMEM;
+		goto err;
+	}
+	memset(bus, 0, sizeof(*bus));
+	spin_lock_init(&bus->mii_lock);
+	bus->bus_info = bi;
+	bus->refs = 0;
+	bus->usage_map = 0;
+
+	/* perform initialization */
+	switch (bi->method) {
+
+		case fsmii_fixed:
+			ret = fs_mii_fixed_init(bus);
+			if (ret != 0)
+				goto err;
+			break;
+
+		case fsmii_bitbang:
+			ret = fs_mii_bitbang_init(bus);
+			if (ret != 0)
+				goto err;
+			break;
+#ifdef CONFIG_FS_ENET_HAS_FEC
+		case fsmii_fec:
+			ret = fs_mii_fec_init(bus);
+			if (ret != 0)
+				goto err;
+			break;
+#endif
+		default:
+			ret = -EINVAL;
+			goto err;
+	}
+
+	list_add(&bus->list, &fs_mii_bus_list);
+
+	return bus;
+
+err:
+	if (bus)
+		kfree(bus);
+	return ERR_PTR(ret);
+}
+
+static void destroy_bus(struct fs_enet_mii_bus *bus)
+{
+	/* remove from bus list */
+	list_del(&bus->list);
+
+	/* nothing more needed */
+	kfree(bus);
+}
+
+int fs_mii_connect(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	const struct fs_platform_info *fpi = fep->fpi;
+	struct fs_enet_mii_bus *bus = NULL;
+
+	/* check method validity */
+	switch (fpi->bus_info->method) {
+		case fsmii_fixed:
+		case fsmii_bitbang:
+			break;
+#ifdef CONFIG_FS_ENET_HAS_FEC
+		case fsmii_fec:
+			break;
+#endif
+		default:
+			printk(KERN_ERR DRV_MODULE_NAME
+			       ": %s Unknown MII bus method (%d)!\n",
+			       dev->name, fpi->bus_info->method);
+			return -EINVAL; 
+	}
+
+	bus = lookup_bus(fpi->bus_info->method, fpi->bus_info->id);
+
+	/* if not found create new bus */
+	if (bus == NULL) {
+		bus = create_bus(fpi->bus_info);
+		if (IS_ERR(bus)) {
+			printk(KERN_ERR DRV_MODULE_NAME
+			       ": %s MII bus creation failure!\n", dev->name);
+			return PTR_ERR(bus);
+		}
+	}
+
+	bus->refs++;
+
+	fep->mii_bus = bus;
+
+	fep->mii_if.dev = dev;
+	fep->mii_if.phy_id_mask = 0x1f;
+	fep->mii_if.reg_num_mask = 0x1f;
+	fep->mii_if.mdio_read = fs_mii_read;
+	fep->mii_if.mdio_write = fs_mii_write;
+	fep->mii_if.force_media = fpi->bus_info->disable_aneg;
+	fep->mii_if.phy_id = phy_id_detect(dev);
+
+	return 0;
+}
+
+void fs_mii_disconnect(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	struct fs_enet_mii_bus *bus = NULL;
+
+	bus = fep->mii_bus;
+	fep->mii_bus = NULL;
+
+	if (--bus->refs <= 0)
+		destroy_bus(bus);
+}
diff --git a/drivers/net/fs_enet/fs_enet.h b/drivers/net/fs_enet/fs_enet.h
new file mode 100644
index 000000000000..1105543b9d88
--- /dev/null
+++ b/drivers/net/fs_enet/fs_enet.h
@@ -0,0 +1,245 @@
+#ifndef FS_ENET_H
+#define FS_ENET_H
+
+#include <linux/mii.h>
+#include <linux/netdevice.h>
+#include <linux/types.h>
+#include <linux/version.h>
+#include <linux/list.h>
+
+#include <linux/fs_enet_pd.h>
+
+#include <asm/dma-mapping.h>
+
+#ifdef CONFIG_CPM1
+#include <asm/commproc.h>
+#endif
+
+#ifdef CONFIG_CPM2
+#include <asm/cpm2.h>
+#endif
+
+/* hw driver ops */
+struct fs_ops {
+	int (*setup_data)(struct net_device *dev);
+	int (*allocate_bd)(struct net_device *dev);
+	void (*free_bd)(struct net_device *dev);
+	void (*cleanup_data)(struct net_device *dev);
+	void (*set_multicast_list)(struct net_device *dev);
+	void (*restart)(struct net_device *dev);
+	void (*stop)(struct net_device *dev);
+	void (*pre_request_irq)(struct net_device *dev, int irq);
+	void (*post_free_irq)(struct net_device *dev, int irq);
+	void (*napi_clear_rx_event)(struct net_device *dev);
+	void (*napi_enable_rx)(struct net_device *dev);
+	void (*napi_disable_rx)(struct net_device *dev);
+	void (*rx_bd_done)(struct net_device *dev);
+	void (*tx_kickstart)(struct net_device *dev);
+	u32 (*get_int_events)(struct net_device *dev);
+	void (*clear_int_events)(struct net_device *dev, u32 int_events);
+	void (*ev_error)(struct net_device *dev, u32 int_events);
+	int (*get_regs)(struct net_device *dev, void *p, int *sizep);
+	int (*get_regs_len)(struct net_device *dev);
+	void (*tx_restart)(struct net_device *dev);
+};
+
+struct phy_info {
+	unsigned int id;
+	const char *name;
+	void (*startup) (struct net_device * dev);
+	void (*shutdown) (struct net_device * dev);
+	void (*ack_int) (struct net_device * dev);
+};
+
+/* The FEC stores dest/src/type, data, and checksum for receive packets.
+ */
+#define MAX_MTU 1508		/* Allow fullsized pppoe packets over VLAN */
+#define MIN_MTU 46		/* this is data size */
+#define CRC_LEN 4
+
+#define PKT_MAXBUF_SIZE		(MAX_MTU+ETH_HLEN+CRC_LEN)
+#define PKT_MINBUF_SIZE		(MIN_MTU+ETH_HLEN+CRC_LEN)
+
+/* Must be a multiple of 32 (to cover both FEC & FCC) */
+#define PKT_MAXBLR_SIZE		((PKT_MAXBUF_SIZE + 31) & ~31)
+/* This is needed so that invalidate_xxx wont invalidate too much */
+#define ENET_RX_FRSIZE		L1_CACHE_ALIGN(PKT_MAXBUF_SIZE)
+
+struct fs_enet_mii_bus {
+	struct list_head list;
+	spinlock_t mii_lock;
+	const struct fs_mii_bus_info *bus_info;
+	int refs;
+	u32 usage_map;
+
+	int (*mii_read)(struct fs_enet_mii_bus *bus,
+			int phy_id, int location);
+
+	void (*mii_write)(struct fs_enet_mii_bus *bus,
+			int phy_id, int location, int value);
+
+	union {
+		struct {
+			unsigned int mii_speed;
+			void *fecp;
+		} fec;
+
+		struct {
+			/* note that the actual port size may */
+			/* be different; cpm(s) handle it OK  */
+			u8 mdio_msk;
+			u8 *mdio_dir;
+			u8 *mdio_dat;
+			u8 mdc_msk;
+			u8 *mdc_dir;
+			u8 *mdc_dat;
+		} bitbang;
+
+		struct {
+			u16 lpa;
+		} fixed;
+	};
+};
+
+int fs_mii_bitbang_init(struct fs_enet_mii_bus *bus);
+int fs_mii_fixed_init(struct fs_enet_mii_bus *bus);
+int fs_mii_fec_init(struct fs_enet_mii_bus *bus);
+
+struct fs_enet_private {
+	struct device *dev;	/* pointer back to the device (must be initialized first) */
+	spinlock_t lock;	/* during all ops except TX pckt processing */
+	spinlock_t tx_lock;	/* during fs_start_xmit and fs_tx         */
+	const struct fs_platform_info *fpi;
+	const struct fs_ops *ops;
+	int rx_ring, tx_ring;
+	dma_addr_t ring_mem_addr;
+	void *ring_base;
+	struct sk_buff **rx_skbuff;
+	struct sk_buff **tx_skbuff;
+	cbd_t *rx_bd_base;	/* Address of Rx and Tx buffers.    */
+	cbd_t *tx_bd_base;
+	cbd_t *dirty_tx;	/* ring entries to be free()ed.     */
+	cbd_t *cur_rx;
+	cbd_t *cur_tx;
+	int tx_free;
+	struct net_device_stats stats;
+	struct timer_list phy_timer_list;
+	const struct phy_info *phy;
+	u32 msg_enable;
+	struct mii_if_info mii_if;
+	unsigned int last_mii_status;
+	struct fs_enet_mii_bus *mii_bus;
+	int interrupt;
+
+	int duplex, speed;	/* current settings */
+
+	/* event masks */
+	u32 ev_napi_rx;		/* mask of NAPI rx events */
+	u32 ev_rx;		/* rx event mask          */
+	u32 ev_tx;		/* tx event mask          */
+	u32 ev_err;		/* error event mask       */
+
+	u16 bd_rx_empty;	/* mask of BD rx empty	  */
+	u16 bd_rx_err;		/* mask of BD rx errors   */
+
+	union {
+		struct {
+			int idx;		/* FEC1 = 0, FEC2 = 1  */
+			void *fecp;		/* hw registers        */
+			u32 hthi, htlo;		/* state for multicast */
+		} fec;
+
+		struct {
+			int idx;		/* FCC1-3 = 0-2	       */
+			void *fccp;		/* hw registers	       */
+			void *ep;		/* parameter ram       */
+			void *fcccp;		/* hw registers cont.  */
+			void *mem;		/* FCC DPRAM */
+			u32 gaddrh, gaddrl;	/* group address       */
+		} fcc;
+
+		struct {
+			int idx;		/* FEC1 = 0, FEC2 = 1  */
+			void *sccp;		/* hw registers        */
+			void *ep;		/* parameter ram       */
+			u32 hthi, htlo;		/* state for multicast */
+		} scc;
+
+	};
+};
+
+/***************************************************************************/
+
+int fs_mii_read(struct net_device *dev, int phy_id, int location);
+void fs_mii_write(struct net_device *dev, int phy_id, int location, int value);
+
+void fs_mii_startup(struct net_device *dev);
+void fs_mii_shutdown(struct net_device *dev);
+void fs_mii_ack_int(struct net_device *dev);
+
+void fs_mii_link_status_change_check(struct net_device *dev, int init_media);
+
+void fs_init_bds(struct net_device *dev);
+void fs_cleanup_bds(struct net_device *dev);
+
+/***************************************************************************/
+
+#define DRV_MODULE_NAME		"fs_enet"
+#define PFX DRV_MODULE_NAME	": "
+#define DRV_MODULE_VERSION	"1.0"
+#define DRV_MODULE_RELDATE	"Aug 8, 2005"
+
+/***************************************************************************/
+
+int fs_enet_platform_init(void);
+void fs_enet_platform_cleanup(void);
+
+/***************************************************************************/
+
+/* buffer descriptor access macros */
+
+/* access macros */
+#if defined(CONFIG_CPM1)
+/* for a a CPM1 __raw_xxx's are sufficient */
+#define __cbd_out32(addr, x)	__raw_writel(x, addr)
+#define __cbd_out16(addr, x)	__raw_writew(x, addr)
+#define __cbd_in32(addr)	__raw_readl(addr)
+#define __cbd_in16(addr)	__raw_readw(addr)
+#else
+/* for others play it safe */
+#define __cbd_out32(addr, x)	out_be32(addr, x)
+#define __cbd_out16(addr, x)	out_be16(addr, x)
+#define __cbd_in32(addr)	in_be32(addr)
+#define __cbd_in16(addr)	in_be16(addr)
+#endif
+
+/* write */
+#define CBDW_SC(_cbd, _sc) 		__cbd_out16(&(_cbd)->cbd_sc, (_sc))
+#define CBDW_DATLEN(_cbd, _datlen)	__cbd_out16(&(_cbd)->cbd_datlen, (_datlen))
+#define CBDW_BUFADDR(_cbd, _bufaddr)	__cbd_out32(&(_cbd)->cbd_bufaddr, (_bufaddr))
+
+/* read */
+#define CBDR_SC(_cbd) 			__cbd_in16(&(_cbd)->cbd_sc)
+#define CBDR_DATLEN(_cbd)		__cbd_in16(&(_cbd)->cbd_datlen)
+#define CBDR_BUFADDR(_cbd)		__cbd_in32(&(_cbd)->cbd_bufaddr)
+
+/* set bits */
+#define CBDS_SC(_cbd, _sc) 		CBDW_SC(_cbd, CBDR_SC(_cbd) | (_sc))
+
+/* clear bits */
+#define CBDC_SC(_cbd, _sc) 		CBDW_SC(_cbd, CBDR_SC(_cbd) & ~(_sc))
+
+/*******************************************************************/
+
+extern const struct fs_ops fs_fec_ops;
+extern const struct fs_ops fs_fcc_ops;
+extern const struct fs_ops fs_scc_ops;
+
+/*******************************************************************/
+
+/* handy pointer to the immap */
+extern void *fs_enet_immap;
+
+/*******************************************************************/
+
+#endif
diff --git a/drivers/net/fs_enet/mac-fcc.c b/drivers/net/fs_enet/mac-fcc.c
new file mode 100644
index 000000000000..a940b96433c7
--- /dev/null
+++ b/drivers/net/fs_enet/mac-fcc.c
@@ -0,0 +1,578 @@
+/*
+ * FCC driver for Motorola MPC82xx (PQ2).
+ *
+ * Copyright (c) 2003 Intracom S.A. 
+ *  by Pantelis Antoniou <panto@intracom.gr>
+ *
+ * 2005 (c) MontaVista Software, Inc. 
+ * Vitaly Bordug <vbordug@ru.mvista.com>
+ *
+ * This file is licensed under the terms of the GNU General Public License 
+ * version 2. This program is licensed "as is" without any warranty of any 
+ * kind, whether express or implied.
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/sched.h>
+#include <linux/string.h>
+#include <linux/ptrace.h>
+#include <linux/errno.h>
+#include <linux/ioport.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/spinlock.h>
+#include <linux/mii.h>
+#include <linux/ethtool.h>
+#include <linux/bitops.h>
+#include <linux/fs.h>
+
+#include <asm/immap_cpm2.h>
+#include <asm/mpc8260.h>
+#include <asm/cpm2.h>
+
+#include <asm/pgtable.h>
+#include <asm/irq.h>
+#include <asm/uaccess.h>
+
+#include "fs_enet.h"
+
+/*************************************************/
+
+/* FCC access macros */
+
+#define __fcc_out32(addr, x)	out_be32((unsigned *)addr, x)
+#define __fcc_out16(addr, x)	out_be16((unsigned short *)addr, x)
+#define __fcc_out8(addr, x)	out_8((unsigned char *)addr, x)
+#define __fcc_in32(addr)	in_be32((unsigned *)addr)
+#define __fcc_in16(addr)	in_be16((unsigned short *)addr)
+#define __fcc_in8(addr)		in_8((unsigned char *)addr)
+
+/* parameter space */
+
+/* write, read, set bits, clear bits */
+#define W32(_p, _m, _v)	__fcc_out32(&(_p)->_m, (_v))
+#define R32(_p, _m)	__fcc_in32(&(_p)->_m)
+#define S32(_p, _m, _v)	W32(_p, _m, R32(_p, _m) | (_v))
+#define C32(_p, _m, _v)	W32(_p, _m, R32(_p, _m) & ~(_v))
+
+#define W16(_p, _m, _v)	__fcc_out16(&(_p)->_m, (_v))
+#define R16(_p, _m)	__fcc_in16(&(_p)->_m)
+#define S16(_p, _m, _v)	W16(_p, _m, R16(_p, _m) | (_v))
+#define C16(_p, _m, _v)	W16(_p, _m, R16(_p, _m) & ~(_v))
+
+#define W8(_p, _m, _v)	__fcc_out8(&(_p)->_m, (_v))
+#define R8(_p, _m)	__fcc_in8(&(_p)->_m)
+#define S8(_p, _m, _v)	W8(_p, _m, R8(_p, _m) | (_v))
+#define C8(_p, _m, _v)	W8(_p, _m, R8(_p, _m) & ~(_v))
+
+/*************************************************/
+
+#define FCC_MAX_MULTICAST_ADDRS	64
+
+#define mk_mii_read(REG)	(0x60020000 | ((REG & 0x1f) << 18))
+#define mk_mii_write(REG, VAL)	(0x50020000 | ((REG & 0x1f) << 18) | (VAL & 0xffff))
+#define mk_mii_end		0
+
+#define MAX_CR_CMD_LOOPS	10000
+
+static inline int fcc_cr_cmd(struct fs_enet_private *fep, u32 mcn, u32 op)
+{
+	const struct fs_platform_info *fpi = fep->fpi;
+
+	cpm2_map_t *immap = fs_enet_immap;
+	cpm_cpm2_t *cpmp = &immap->im_cpm;
+	u32 v;
+	int i;
+
+	/* Currently I don't know what feature call will look like. But 
+	   I guess there'd be something like do_cpm_cmd() which will require page & sblock */
+	v = mk_cr_cmd(fpi->cp_page, fpi->cp_block, mcn, op);
+	W32(cpmp, cp_cpcr, v | CPM_CR_FLG);
+	for (i = 0; i < MAX_CR_CMD_LOOPS; i++)
+		if ((R32(cpmp, cp_cpcr) & CPM_CR_FLG) == 0)
+			break;
+
+	if (i >= MAX_CR_CMD_LOOPS) {
+		printk(KERN_ERR "%s(): Not able to issue CPM command\n",
+		       __FUNCTION__);
+		return 1;
+	}
+
+	return 0;
+}
+
+static int do_pd_setup(struct fs_enet_private *fep)
+{
+	struct platform_device *pdev = to_platform_device(fep->dev);
+	struct resource *r;
+
+	/* Fill out IRQ field */
+	fep->interrupt = platform_get_irq(pdev, 0);
+
+	/* Attach the memory for the FCC Parameter RAM */
+	r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "fcc_pram");
+	fep->fcc.ep = (void *)r->start;
+
+	if (fep->fcc.ep == NULL)
+		return -EINVAL;
+
+	r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "fcc_regs");
+	fep->fcc.fccp = (void *)r->start;
+
+	if (fep->fcc.fccp == NULL)
+		return -EINVAL;
+
+	fep->fcc.fcccp = (void *)fep->fpi->fcc_regs_c;
+
+	if (fep->fcc.fcccp == NULL)
+		return -EINVAL;
+
+	return 0;
+}
+
+#define FCC_NAPI_RX_EVENT_MSK	(FCC_ENET_RXF | FCC_ENET_RXB)
+#define FCC_RX_EVENT		(FCC_ENET_RXF)
+#define FCC_TX_EVENT		(FCC_ENET_TXB)
+#define FCC_ERR_EVENT_MSK	(FCC_ENET_TXE | FCC_ENET_BSY)
+
+static int setup_data(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	const struct fs_platform_info *fpi = fep->fpi;
+
+	fep->fcc.idx = fs_get_fcc_index(fpi->fs_no);
+	if ((unsigned int)fep->fcc.idx >= 3)	/* max 3 FCCs */
+		return -EINVAL;
+
+	fep->fcc.mem = (void *)fpi->mem_offset;
+
+	if (do_pd_setup(fep) != 0)
+		return -EINVAL;
+
+	fep->ev_napi_rx = FCC_NAPI_RX_EVENT_MSK;
+	fep->ev_rx = FCC_RX_EVENT;
+	fep->ev_tx = FCC_TX_EVENT;
+	fep->ev_err = FCC_ERR_EVENT_MSK;
+
+	return 0;
+}
+
+static int allocate_bd(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	const struct fs_platform_info *fpi = fep->fpi;
+
+	fep->ring_base = dma_alloc_coherent(fep->dev,
+					    (fpi->tx_ring + fpi->rx_ring) *
+					    sizeof(cbd_t), &fep->ring_mem_addr,
+					    GFP_KERNEL);
+	if (fep->ring_base == NULL)
+		return -ENOMEM;
+
+	return 0;
+}
+
+static void free_bd(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	const struct fs_platform_info *fpi = fep->fpi;
+
+	if (fep->ring_base)
+		dma_free_coherent(fep->dev,
+			(fpi->tx_ring + fpi->rx_ring) * sizeof(cbd_t),
+			fep->ring_base, fep->ring_mem_addr);
+}
+
+static void cleanup_data(struct net_device *dev)
+{
+	/* nothing */
+}
+
+static void set_promiscuous_mode(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	fcc_t *fccp = fep->fcc.fccp;
+
+	S32(fccp, fcc_fpsmr, FCC_PSMR_PRO);
+}
+
+static void set_multicast_start(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	fcc_enet_t *ep = fep->fcc.ep;
+
+	W32(ep, fen_gaddrh, 0);
+	W32(ep, fen_gaddrl, 0);
+}
+
+static void set_multicast_one(struct net_device *dev, const u8 *mac)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	fcc_enet_t *ep = fep->fcc.ep;
+	u16 taddrh, taddrm, taddrl;
+
+	taddrh = ((u16)mac[5] << 8) | mac[4];
+	taddrm = ((u16)mac[3] << 8) | mac[2];
+	taddrl = ((u16)mac[1] << 8) | mac[0];
+
+	W16(ep, fen_taddrh, taddrh);
+	W16(ep, fen_taddrm, taddrm);
+	W16(ep, fen_taddrl, taddrl);
+	fcc_cr_cmd(fep, 0x0C, CPM_CR_SET_GADDR);
+}
+
+static void set_multicast_finish(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	fcc_t *fccp = fep->fcc.fccp;
+	fcc_enet_t *ep = fep->fcc.ep;
+
+	/* clear promiscuous always */
+	C32(fccp, fcc_fpsmr, FCC_PSMR_PRO);
+
+	/* if all multi or too many multicasts; just enable all */
+	if ((dev->flags & IFF_ALLMULTI) != 0 ||
+	    dev->mc_count > FCC_MAX_MULTICAST_ADDRS) {
+
+		W32(ep, fen_gaddrh, 0xffffffff);
+		W32(ep, fen_gaddrl, 0xffffffff);
+	}
+
+	/* read back */
+	fep->fcc.gaddrh = R32(ep, fen_gaddrh);
+	fep->fcc.gaddrl = R32(ep, fen_gaddrl);
+}
+
+static void set_multicast_list(struct net_device *dev)
+{
+	struct dev_mc_list *pmc;
+
+	if ((dev->flags & IFF_PROMISC) == 0) {
+		set_multicast_start(dev);
+		for (pmc = dev->mc_list; pmc != NULL; pmc = pmc->next)
+			set_multicast_one(dev, pmc->dmi_addr);
+		set_multicast_finish(dev);
+	} else
+		set_promiscuous_mode(dev);
+}
+
+static void restart(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	const struct fs_platform_info *fpi = fep->fpi;
+	fcc_t *fccp = fep->fcc.fccp;
+	fcc_c_t *fcccp = fep->fcc.fcccp;
+	fcc_enet_t *ep = fep->fcc.ep;
+	dma_addr_t rx_bd_base_phys, tx_bd_base_phys;
+	u16 paddrh, paddrm, paddrl;
+	u16 mem_addr;
+	const unsigned char *mac;
+	int i;
+
+	C32(fccp, fcc_gfmr, FCC_GFMR_ENR | FCC_GFMR_ENT);
+
+	/* clear everything (slow & steady does it) */
+	for (i = 0; i < sizeof(*ep); i++)
+		__fcc_out8((char *)ep + i, 0);
+
+	/* get physical address */
+	rx_bd_base_phys = fep->ring_mem_addr;
+	tx_bd_base_phys = rx_bd_base_phys + sizeof(cbd_t) * fpi->rx_ring;
+
+	/* point to bds */
+	W32(ep, fen_genfcc.fcc_rbase, rx_bd_base_phys);
+	W32(ep, fen_genfcc.fcc_tbase, tx_bd_base_phys);
+
+	/* Set maximum bytes per receive buffer.
+	 * It must be a multiple of 32.
+	 */
+	W16(ep, fen_genfcc.fcc_mrblr, PKT_MAXBLR_SIZE);
+
+	W32(ep, fen_genfcc.fcc_rstate, (CPMFCR_GBL | CPMFCR_EB) << 24);
+	W32(ep, fen_genfcc.fcc_tstate, (CPMFCR_GBL | CPMFCR_EB) << 24);
+
+	/* Allocate space in the reserved FCC area of DPRAM for the
+	 * internal buffers.  No one uses this space (yet), so we
+	 * can do this.  Later, we will add resource management for
+	 * this area.
+	 */
+
+	mem_addr = (u32) fep->fcc.mem;	/* de-fixup dpram offset */
+
+	W16(ep, fen_genfcc.fcc_riptr, (mem_addr & 0xffff));
+	W16(ep, fen_genfcc.fcc_tiptr, ((mem_addr + 32) & 0xffff));
+	W16(ep, fen_padptr, mem_addr + 64);
+
+	/* fill with special symbol...  */
+	memset(fep->fcc.mem + fpi->dpram_offset + 64, 0x88, 32);
+
+	W32(ep, fen_genfcc.fcc_rbptr, 0);
+	W32(ep, fen_genfcc.fcc_tbptr, 0);
+	W32(ep, fen_genfcc.fcc_rcrc, 0);
+	W32(ep, fen_genfcc.fcc_tcrc, 0);
+	W16(ep, fen_genfcc.fcc_res1, 0);
+	W32(ep, fen_genfcc.fcc_res2, 0);
+
+	/* no CAM */
+	W32(ep, fen_camptr, 0);
+
+	/* Set CRC preset and mask */
+	W32(ep, fen_cmask, 0xdebb20e3);
+	W32(ep, fen_cpres, 0xffffffff);
+
+	W32(ep, fen_crcec, 0);		/* CRC Error counter       */
+	W32(ep, fen_alec, 0);		/* alignment error counter */
+	W32(ep, fen_disfc, 0);		/* discard frame counter   */
+	W16(ep, fen_retlim, 15);	/* Retry limit threshold   */
+	W16(ep, fen_pper, 0);		/* Normal persistence      */
+
+	/* set group address */
+	W32(ep, fen_gaddrh, fep->fcc.gaddrh);
+	W32(ep, fen_gaddrl, fep->fcc.gaddrh);
+
+	/* Clear hash filter tables */
+	W32(ep, fen_iaddrh, 0);
+	W32(ep, fen_iaddrl, 0);
+
+	/* Clear the Out-of-sequence TxBD  */
+	W16(ep, fen_tfcstat, 0);
+	W16(ep, fen_tfclen, 0);
+	W32(ep, fen_tfcptr, 0);
+
+	W16(ep, fen_mflr, PKT_MAXBUF_SIZE);	/* maximum frame length register */
+	W16(ep, fen_minflr, PKT_MINBUF_SIZE);	/* minimum frame length register */
+
+	/* set address */
+	mac = dev->dev_addr;
+	paddrh = ((u16)mac[5] << 8) | mac[4];
+	paddrm = ((u16)mac[3] << 8) | mac[2];
+	paddrl = ((u16)mac[1] << 8) | mac[0];
+
+	W16(ep, fen_paddrh, paddrh);
+	W16(ep, fen_paddrm, paddrm);
+	W16(ep, fen_paddrl, paddrl);
+
+	W16(ep, fen_taddrh, 0);
+	W16(ep, fen_taddrm, 0);
+	W16(ep, fen_taddrl, 0);
+
+	W16(ep, fen_maxd1, 1520);	/* maximum DMA1 length */
+	W16(ep, fen_maxd2, 1520);	/* maximum DMA2 length */
+
+	/* Clear stat counters, in case we ever enable RMON */
+	W32(ep, fen_octc, 0);
+	W32(ep, fen_colc, 0);
+	W32(ep, fen_broc, 0);
+	W32(ep, fen_mulc, 0);
+	W32(ep, fen_uspc, 0);
+	W32(ep, fen_frgc, 0);
+	W32(ep, fen_ospc, 0);
+	W32(ep, fen_jbrc, 0);
+	W32(ep, fen_p64c, 0);
+	W32(ep, fen_p65c, 0);
+	W32(ep, fen_p128c, 0);
+	W32(ep, fen_p256c, 0);
+	W32(ep, fen_p512c, 0);
+	W32(ep, fen_p1024c, 0);
+
+	W16(ep, fen_rfthr, 0);	/* Suggested by manual */
+	W16(ep, fen_rfcnt, 0);
+	W16(ep, fen_cftype, 0);
+
+	fs_init_bds(dev);
+
+	/* adjust to speed (for RMII mode) */
+	if (fpi->use_rmii) {
+		if (fep->speed == 100)
+			C8(fcccp, fcc_gfemr, 0x20);
+		else
+			S8(fcccp, fcc_gfemr, 0x20);
+	}
+
+	fcc_cr_cmd(fep, 0x0c, CPM_CR_INIT_TRX);
+
+	/* clear events */
+	W16(fccp, fcc_fcce, 0xffff);
+
+	/* Enable interrupts we wish to service */
+	W16(fccp, fcc_fccm, FCC_ENET_TXE | FCC_ENET_RXF | FCC_ENET_TXB);
+
+	/* Set GFMR to enable Ethernet operating mode */
+	W32(fccp, fcc_gfmr, FCC_GFMR_TCI | FCC_GFMR_MODE_ENET);
+
+	/* set sync/delimiters */
+	W16(fccp, fcc_fdsr, 0xd555);
+
+	W32(fccp, fcc_fpsmr, FCC_PSMR_ENCRC);
+
+	if (fpi->use_rmii)
+		S32(fccp, fcc_fpsmr, FCC_PSMR_RMII);
+
+	/* adjust to duplex mode */
+	if (fep->duplex)
+		S32(fccp, fcc_fpsmr, FCC_PSMR_FDE | FCC_PSMR_LPB);
+	else
+		C32(fccp, fcc_fpsmr, FCC_PSMR_FDE | FCC_PSMR_LPB);
+
+	S32(fccp, fcc_gfmr, FCC_GFMR_ENR | FCC_GFMR_ENT);
+}
+
+static void stop(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	fcc_t *fccp = fep->fcc.fccp;
+
+	/* stop ethernet */
+	C32(fccp, fcc_gfmr, FCC_GFMR_ENR | FCC_GFMR_ENT);
+
+	/* clear events */
+	W16(fccp, fcc_fcce, 0xffff);
+
+	/* clear interrupt mask */
+	W16(fccp, fcc_fccm, 0);
+
+	fs_cleanup_bds(dev);
+}
+
+static void pre_request_irq(struct net_device *dev, int irq)
+{
+	/* nothing */
+}
+
+static void post_free_irq(struct net_device *dev, int irq)
+{
+	/* nothing */
+}
+
+static void napi_clear_rx_event(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	fcc_t *fccp = fep->fcc.fccp;
+
+	W16(fccp, fcc_fcce, FCC_NAPI_RX_EVENT_MSK);
+}
+
+static void napi_enable_rx(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	fcc_t *fccp = fep->fcc.fccp;
+
+	S16(fccp, fcc_fccm, FCC_NAPI_RX_EVENT_MSK);
+}
+
+static void napi_disable_rx(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	fcc_t *fccp = fep->fcc.fccp;
+
+	C16(fccp, fcc_fccm, FCC_NAPI_RX_EVENT_MSK);
+}
+
+static void rx_bd_done(struct net_device *dev)
+{
+	/* nothing */
+}
+
+static void tx_kickstart(struct net_device *dev)
+{
+	/* nothing */
+}
+
+static u32 get_int_events(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	fcc_t *fccp = fep->fcc.fccp;
+
+	return (u32)R16(fccp, fcc_fcce);
+}
+
+static void clear_int_events(struct net_device *dev, u32 int_events)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	fcc_t *fccp = fep->fcc.fccp;
+
+	W16(fccp, fcc_fcce, int_events & 0xffff);
+}
+
+static void ev_error(struct net_device *dev, u32 int_events)
+{
+	printk(KERN_WARNING DRV_MODULE_NAME
+	       ": %s FS_ENET ERROR(s) 0x%x\n", dev->name, int_events);
+}
+
+int get_regs(struct net_device *dev, void *p, int *sizep)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+
+	if (*sizep < sizeof(fcc_t) + sizeof(fcc_c_t) + sizeof(fcc_enet_t))
+		return -EINVAL;
+
+	memcpy_fromio(p, fep->fcc.fccp, sizeof(fcc_t));
+	p = (char *)p + sizeof(fcc_t);
+
+	memcpy_fromio(p, fep->fcc.fcccp, sizeof(fcc_c_t));
+	p = (char *)p + sizeof(fcc_c_t);
+
+	memcpy_fromio(p, fep->fcc.ep, sizeof(fcc_enet_t));
+
+	return 0;
+}
+
+int get_regs_len(struct net_device *dev)
+{
+	return sizeof(fcc_t) + sizeof(fcc_c_t) + sizeof(fcc_enet_t);
+}
+
+/* Some transmit errors cause the transmitter to shut
+ * down.  We now issue a restart transmit.  Since the
+ * errors close the BD and update the pointers, the restart
+ * _should_ pick up without having to reset any of our
+ * pointers either.  Also, To workaround 8260 device erratum 
+ * CPM37, we must disable and then re-enable the transmitter
+ * following a Late Collision, Underrun, or Retry Limit error.
+ */
+void tx_restart(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	fcc_t *fccp = fep->fcc.fccp;
+
+	C32(fccp, fcc_gfmr, FCC_GFMR_ENT);
+	udelay(10);
+	S32(fccp, fcc_gfmr, FCC_GFMR_ENT);
+
+	fcc_cr_cmd(fep, 0x0C, CPM_CR_RESTART_TX);
+}
+
+/*************************************************************************/
+
+const struct fs_ops fs_fcc_ops = {
+	.setup_data		= setup_data,
+	.cleanup_data		= cleanup_data,
+	.set_multicast_list	= set_multicast_list,
+	.restart		= restart,
+	.stop			= stop,
+	.pre_request_irq	= pre_request_irq,
+	.post_free_irq		= post_free_irq,
+	.napi_clear_rx_event	= napi_clear_rx_event,
+	.napi_enable_rx		= napi_enable_rx,
+	.napi_disable_rx	= napi_disable_rx,
+	.rx_bd_done		= rx_bd_done,
+	.tx_kickstart		= tx_kickstart,
+	.get_int_events		= get_int_events,
+	.clear_int_events	= clear_int_events,
+	.ev_error		= ev_error,
+	.get_regs		= get_regs,
+	.get_regs_len		= get_regs_len,
+	.tx_restart		= tx_restart,
+	.allocate_bd		= allocate_bd,
+	.free_bd		= free_bd,
+};
diff --git a/drivers/net/fs_enet/mac-fec.c b/drivers/net/fs_enet/mac-fec.c
new file mode 100644
index 000000000000..5ef4e845a387
--- /dev/null
+++ b/drivers/net/fs_enet/mac-fec.c
@@ -0,0 +1,653 @@
+/*
+ * Freescale Ethernet controllers
+ *
+ * Copyright (c) 2005 Intracom S.A. 
+ *  by Pantelis Antoniou <panto@intracom.gr>
+ *
+ * 2005 (c) MontaVista Software, Inc. 
+ * Vitaly Bordug <vbordug@ru.mvista.com>
+ *
+ * This file is licensed under the terms of the GNU General Public License 
+ * version 2. This program is licensed "as is" without any warranty of any 
+ * kind, whether express or implied.
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/sched.h>
+#include <linux/string.h>
+#include <linux/ptrace.h>
+#include <linux/errno.h>
+#include <linux/ioport.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/spinlock.h>
+#include <linux/mii.h>
+#include <linux/ethtool.h>
+#include <linux/bitops.h>
+#include <linux/fs.h>
+
+#include <asm/irq.h>
+#include <asm/uaccess.h>
+
+#ifdef CONFIG_8xx
+#include <asm/8xx_immap.h>
+#include <asm/pgtable.h>
+#include <asm/mpc8xx.h>
+#include <asm/commproc.h>
+#endif
+
+#include "fs_enet.h"
+
+/*************************************************/
+
+#if defined(CONFIG_CPM1)
+/* for a CPM1 __raw_xxx's are sufficient */
+#define __fs_out32(addr, x)	__raw_writel(x, addr)
+#define __fs_out16(addr, x)	__raw_writew(x, addr)
+#define __fs_in32(addr)	__raw_readl(addr)
+#define __fs_in16(addr)	__raw_readw(addr)
+#else
+/* for others play it safe */
+#define __fs_out32(addr, x)	out_be32(addr, x)
+#define __fs_out16(addr, x)	out_be16(addr, x)
+#define __fs_in32(addr)	in_be32(addr)
+#define __fs_in16(addr)	in_be16(addr)
+#endif
+
+/* write */
+#define FW(_fecp, _reg, _v) __fs_out32(&(_fecp)->fec_ ## _reg, (_v))
+
+/* read */
+#define FR(_fecp, _reg)	__fs_in32(&(_fecp)->fec_ ## _reg)
+
+/* set bits */
+#define FS(_fecp, _reg, _v) FW(_fecp, _reg, FR(_fecp, _reg) | (_v))
+
+/* clear bits */
+#define FC(_fecp, _reg, _v) FW(_fecp, _reg, FR(_fecp, _reg) & ~(_v))
+
+
+/* CRC polynomium used by the FEC for the multicast group filtering */
+#define FEC_CRC_POLY   0x04C11DB7
+
+#define FEC_MAX_MULTICAST_ADDRS	64
+
+/* Interrupt events/masks.
+*/
+#define FEC_ENET_HBERR	0x80000000U	/* Heartbeat error          */
+#define FEC_ENET_BABR	0x40000000U	/* Babbling receiver        */
+#define FEC_ENET_BABT	0x20000000U	/* Babbling transmitter     */
+#define FEC_ENET_GRA	0x10000000U	/* Graceful stop complete   */
+#define FEC_ENET_TXF	0x08000000U	/* Full frame transmitted   */
+#define FEC_ENET_TXB	0x04000000U	/* A buffer was transmitted */
+#define FEC_ENET_RXF	0x02000000U	/* Full frame received      */
+#define FEC_ENET_RXB	0x01000000U	/* A buffer was received    */
+#define FEC_ENET_MII	0x00800000U	/* MII interrupt            */
+#define FEC_ENET_EBERR	0x00400000U	/* SDMA bus error           */
+
+#define FEC_ECNTRL_PINMUX	0x00000004
+#define FEC_ECNTRL_ETHER_EN	0x00000002
+#define FEC_ECNTRL_RESET	0x00000001
+
+#define FEC_RCNTRL_BC_REJ	0x00000010
+#define FEC_RCNTRL_PROM		0x00000008
+#define FEC_RCNTRL_MII_MODE	0x00000004
+#define FEC_RCNTRL_DRT		0x00000002
+#define FEC_RCNTRL_LOOP		0x00000001
+
+#define FEC_TCNTRL_FDEN		0x00000004
+#define FEC_TCNTRL_HBC		0x00000002
+#define FEC_TCNTRL_GTS		0x00000001
+
+
+/* Make MII read/write commands for the FEC.
+*/
+#define mk_mii_read(REG)	(0x60020000 | ((REG & 0x1f) << 18))
+#define mk_mii_write(REG, VAL)	(0x50020000 | ((REG & 0x1f) << 18) | (VAL & 0xffff))
+#define mk_mii_end		0
+
+#define FEC_MII_LOOPS	10000
+
+/*
+ * Delay to wait for FEC reset command to complete (in us) 
+ */
+#define FEC_RESET_DELAY		50
+
+static int whack_reset(fec_t * fecp)
+{
+	int i;
+
+	FW(fecp, ecntrl, FEC_ECNTRL_PINMUX | FEC_ECNTRL_RESET);
+	for (i = 0; i < FEC_RESET_DELAY; i++) {
+		if ((FR(fecp, ecntrl) & FEC_ECNTRL_RESET) == 0)
+			return 0;	/* OK */
+		udelay(1);
+	}
+
+	return -1;
+}
+
+static int do_pd_setup(struct fs_enet_private *fep)
+{
+	struct platform_device *pdev = to_platform_device(fep->dev); 
+	struct resource	*r;
+	
+	/* Fill out IRQ field */
+	fep->interrupt = platform_get_irq_byname(pdev,"interrupt");
+	
+	r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "regs");
+	fep->fec.fecp =(void*)r->start;
+
+	if(fep->fec.fecp == NULL)
+		return -EINVAL;
+
+	return 0;
+	
+}
+
+#define FEC_NAPI_RX_EVENT_MSK	(FEC_ENET_RXF | FEC_ENET_RXB)
+#define FEC_RX_EVENT		(FEC_ENET_RXF)
+#define FEC_TX_EVENT		(FEC_ENET_TXF)
+#define FEC_ERR_EVENT_MSK	(FEC_ENET_HBERR | FEC_ENET_BABR | \
+				 FEC_ENET_BABT | FEC_ENET_EBERR)
+
+static int setup_data(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+
+	if (do_pd_setup(fep) != 0)
+		return -EINVAL;
+
+	fep->fec.hthi = 0;
+	fep->fec.htlo = 0;
+
+	fep->ev_napi_rx = FEC_NAPI_RX_EVENT_MSK;
+	fep->ev_rx = FEC_RX_EVENT;
+	fep->ev_tx = FEC_TX_EVENT;
+	fep->ev_err = FEC_ERR_EVENT_MSK;
+
+	return 0;
+}
+
+static int allocate_bd(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	const struct fs_platform_info *fpi = fep->fpi;
+	
+	fep->ring_base = dma_alloc_coherent(fep->dev,
+					    (fpi->tx_ring + fpi->rx_ring) *
+					    sizeof(cbd_t), &fep->ring_mem_addr,
+					    GFP_KERNEL);
+	if (fep->ring_base == NULL)
+		return -ENOMEM;
+
+	return 0;
+}
+
+static void free_bd(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	const struct fs_platform_info *fpi = fep->fpi;
+
+	if(fep->ring_base)
+		dma_free_coherent(fep->dev, (fpi->tx_ring + fpi->rx_ring)
+					* sizeof(cbd_t),
+					fep->ring_base,
+					fep->ring_mem_addr);
+}
+
+static void cleanup_data(struct net_device *dev)
+{
+	/* nothing */
+}
+
+static void set_promiscuous_mode(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	fec_t *fecp = fep->fec.fecp;
+
+	FS(fecp, r_cntrl, FEC_RCNTRL_PROM);
+}
+
+static void set_multicast_start(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+
+	fep->fec.hthi = 0;
+	fep->fec.htlo = 0;
+}
+
+static void set_multicast_one(struct net_device *dev, const u8 *mac)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	int temp, hash_index, i, j;
+	u32 crc, csrVal;
+	u8 byte, msb;
+
+	crc = 0xffffffff;
+	for (i = 0; i < 6; i++) {
+		byte = mac[i];
+		for (j = 0; j < 8; j++) {
+			msb = crc >> 31;
+			crc <<= 1;
+			if (msb ^ (byte & 0x1))
+				crc ^= FEC_CRC_POLY;
+			byte >>= 1;
+		}
+	}
+
+	temp = (crc & 0x3f) >> 1;
+	hash_index = ((temp & 0x01) << 4) |
+		     ((temp & 0x02) << 2) |
+		     ((temp & 0x04)) |
+		     ((temp & 0x08) >> 2) |
+		     ((temp & 0x10) >> 4);
+	csrVal = 1 << hash_index;
+	if (crc & 1)
+		fep->fec.hthi |= csrVal;
+	else
+		fep->fec.htlo |= csrVal;
+}
+
+static void set_multicast_finish(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	fec_t *fecp = fep->fec.fecp;
+
+	/* if all multi or too many multicasts; just enable all */
+	if ((dev->flags & IFF_ALLMULTI) != 0 ||
+	    dev->mc_count > FEC_MAX_MULTICAST_ADDRS) {
+		fep->fec.hthi = 0xffffffffU;
+		fep->fec.htlo = 0xffffffffU;
+	}
+
+	FC(fecp, r_cntrl, FEC_RCNTRL_PROM);
+	FW(fecp, hash_table_high, fep->fec.hthi);
+	FW(fecp, hash_table_low, fep->fec.htlo);
+}
+
+static void set_multicast_list(struct net_device *dev)
+{
+	struct dev_mc_list *pmc;
+
+	if ((dev->flags & IFF_PROMISC) == 0) {
+		set_multicast_start(dev);
+		for (pmc = dev->mc_list; pmc != NULL; pmc = pmc->next)
+			set_multicast_one(dev, pmc->dmi_addr);
+		set_multicast_finish(dev);
+	} else
+		set_promiscuous_mode(dev);
+}
+
+static void restart(struct net_device *dev)
+{
+#ifdef CONFIG_DUET
+	immap_t *immap = fs_enet_immap;
+	u32 cptr;
+#endif
+	struct fs_enet_private *fep = netdev_priv(dev);
+	fec_t *fecp = fep->fec.fecp;
+	const struct fs_platform_info *fpi = fep->fpi;
+	dma_addr_t rx_bd_base_phys, tx_bd_base_phys;
+	int r;
+	u32 addrhi, addrlo;
+
+	r = whack_reset(fep->fec.fecp);
+	if (r != 0)
+		printk(KERN_ERR DRV_MODULE_NAME
+				": %s FEC Reset FAILED!\n", dev->name);
+
+	/*
+	 * Set station address. 
+	 */
+	addrhi = ((u32) dev->dev_addr[0] << 24) |
+		 ((u32) dev->dev_addr[1] << 16) |
+		 ((u32) dev->dev_addr[2] <<  8) |
+		  (u32) dev->dev_addr[3];
+	addrlo = ((u32) dev->dev_addr[4] << 24) |
+		 ((u32) dev->dev_addr[5] << 16);
+	FW(fecp, addr_low, addrhi);
+	FW(fecp, addr_high, addrlo);
+
+	/*
+	 * Reset all multicast. 
+	 */
+	FW(fecp, hash_table_high, fep->fec.hthi);
+	FW(fecp, hash_table_low, fep->fec.htlo);
+
+	/*
+	 * Set maximum receive buffer size. 
+	 */
+	FW(fecp, r_buff_size, PKT_MAXBLR_SIZE);
+	FW(fecp, r_hash, PKT_MAXBUF_SIZE);
+
+	/* get physical address */
+	rx_bd_base_phys = fep->ring_mem_addr;
+	tx_bd_base_phys = rx_bd_base_phys + sizeof(cbd_t) * fpi->rx_ring;
+
+	/*
+	 * Set receive and transmit descriptor base. 
+	 */
+	FW(fecp, r_des_start, rx_bd_base_phys);
+	FW(fecp, x_des_start, tx_bd_base_phys);
+
+	fs_init_bds(dev);
+
+	/*
+	 * Enable big endian and don't care about SDMA FC. 
+	 */
+	FW(fecp, fun_code, 0x78000000);
+
+	/*
+	 * Set MII speed. 
+	 */
+	FW(fecp, mii_speed, fep->mii_bus->fec.mii_speed);
+
+	/*
+	 * Clear any outstanding interrupt. 
+	 */
+	FW(fecp, ievent, 0xffc0);
+	FW(fecp, ivec, (fep->interrupt / 2) << 29);
+	
+
+	/*
+	 * adjust to speed (only for DUET & RMII) 
+	 */
+#ifdef CONFIG_DUET
+	if (fpi->use_rmii) {
+		cptr = in_be32(&immap->im_cpm.cp_cptr);
+		switch (fs_get_fec_index(fpi->fs_no)) {
+		case 0:
+			cptr |= 0x100;
+			if (fep->speed == 10)
+				cptr |= 0x0000010;
+			else if (fep->speed == 100)
+				cptr &= ~0x0000010;
+			break;
+		case 1:
+			cptr |= 0x80;
+			if (fep->speed == 10)
+				cptr |= 0x0000008;
+			else if (fep->speed == 100)
+				cptr &= ~0x0000008;
+			break;
+		default:
+			BUG();	/* should never happen */
+			break;
+		}
+		out_be32(&immap->im_cpm.cp_cptr, cptr);
+	}
+#endif
+
+	FW(fecp, r_cntrl, FEC_RCNTRL_MII_MODE);	/* MII enable */
+	/*
+	 * adjust to duplex mode 
+	 */
+	if (fep->duplex) {
+		FC(fecp, r_cntrl, FEC_RCNTRL_DRT);
+		FS(fecp, x_cntrl, FEC_TCNTRL_FDEN);	/* FD enable */
+	} else {
+		FS(fecp, r_cntrl, FEC_RCNTRL_DRT);
+		FC(fecp, x_cntrl, FEC_TCNTRL_FDEN);	/* FD disable */
+	}
+
+	/*
+	 * Enable interrupts we wish to service. 
+	 */
+	FW(fecp, imask, FEC_ENET_TXF | FEC_ENET_TXB |
+	   FEC_ENET_RXF | FEC_ENET_RXB);
+
+	/*
+	 * And last, enable the transmit and receive processing. 
+	 */
+	FW(fecp, ecntrl, FEC_ECNTRL_PINMUX | FEC_ECNTRL_ETHER_EN);
+	FW(fecp, r_des_active, 0x01000000);
+}
+
+static void stop(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	fec_t *fecp = fep->fec.fecp;
+	struct fs_enet_mii_bus *bus = fep->mii_bus;
+	const struct fs_mii_bus_info *bi = bus->bus_info;
+	int i;
+
+	if ((FR(fecp, ecntrl) & FEC_ECNTRL_ETHER_EN) == 0)
+		return;		/* already down */
+
+	FW(fecp, x_cntrl, 0x01);	/* Graceful transmit stop */
+	for (i = 0; ((FR(fecp, ievent) & 0x10000000) == 0) &&
+	     i < FEC_RESET_DELAY; i++)
+		udelay(1);
+
+	if (i == FEC_RESET_DELAY)
+		printk(KERN_WARNING DRV_MODULE_NAME
+		       ": %s FEC timeout on graceful transmit stop\n",
+		       dev->name);
+	/*
+	 * Disable FEC. Let only MII interrupts. 
+	 */
+	FW(fecp, imask, 0);
+	FC(fecp, ecntrl, FEC_ECNTRL_ETHER_EN);
+
+	fs_cleanup_bds(dev);
+
+	/* shut down FEC1? that's where the mii bus is */
+	if (fep->fec.idx == 0 && bus->refs > 1 && bi->method == fsmii_fec) {
+		FS(fecp, r_cntrl, FEC_RCNTRL_MII_MODE);	/* MII enable */
+		FS(fecp, ecntrl, FEC_ECNTRL_PINMUX | FEC_ECNTRL_ETHER_EN);
+		FW(fecp, ievent, FEC_ENET_MII);
+		FW(fecp, mii_speed, bus->fec.mii_speed);
+	}
+}
+
+static void pre_request_irq(struct net_device *dev, int irq)
+{
+	immap_t *immap = fs_enet_immap;
+	u32 siel;
+
+	/* SIU interrupt */
+	if (irq >= SIU_IRQ0 && irq < SIU_LEVEL7) {
+
+		siel = in_be32(&immap->im_siu_conf.sc_siel);
+		if ((irq & 1) == 0)
+			siel |= (0x80000000 >> irq);
+		else
+			siel &= ~(0x80000000 >> (irq & ~1));
+		out_be32(&immap->im_siu_conf.sc_siel, siel);
+	}
+}
+
+static void post_free_irq(struct net_device *dev, int irq)
+{
+	/* nothing */
+}
+
+static void napi_clear_rx_event(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	fec_t *fecp = fep->fec.fecp;
+
+	FW(fecp, ievent, FEC_NAPI_RX_EVENT_MSK);
+}
+
+static void napi_enable_rx(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	fec_t *fecp = fep->fec.fecp;
+
+	FS(fecp, imask, FEC_NAPI_RX_EVENT_MSK);
+}
+
+static void napi_disable_rx(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	fec_t *fecp = fep->fec.fecp;
+
+	FC(fecp, imask, FEC_NAPI_RX_EVENT_MSK);
+}
+
+static void rx_bd_done(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	fec_t *fecp = fep->fec.fecp;
+
+	FW(fecp, r_des_active, 0x01000000);
+}
+
+static void tx_kickstart(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	fec_t *fecp = fep->fec.fecp;
+
+	FW(fecp, x_des_active, 0x01000000);
+}
+
+static u32 get_int_events(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	fec_t *fecp = fep->fec.fecp;
+
+	return FR(fecp, ievent) & FR(fecp, imask);
+}
+
+static void clear_int_events(struct net_device *dev, u32 int_events)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	fec_t *fecp = fep->fec.fecp;
+
+	FW(fecp, ievent, int_events);
+}
+
+static void ev_error(struct net_device *dev, u32 int_events)
+{
+	printk(KERN_WARNING DRV_MODULE_NAME
+	       ": %s FEC ERROR(s) 0x%x\n", dev->name, int_events);
+}
+
+int get_regs(struct net_device *dev, void *p, int *sizep)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+
+	if (*sizep < sizeof(fec_t))
+		return -EINVAL;
+
+	memcpy_fromio(p, fep->fec.fecp, sizeof(fec_t));
+
+	return 0;
+}
+
+int get_regs_len(struct net_device *dev)
+{
+	return sizeof(fec_t);
+}
+
+void tx_restart(struct net_device *dev)
+{
+	/* nothing */
+}
+
+/*************************************************************************/
+
+const struct fs_ops fs_fec_ops = {
+	.setup_data		= setup_data,
+	.cleanup_data		= cleanup_data,
+	.set_multicast_list	= set_multicast_list,
+	.restart		= restart,
+	.stop			= stop,
+	.pre_request_irq	= pre_request_irq,
+	.post_free_irq		= post_free_irq,
+	.napi_clear_rx_event	= napi_clear_rx_event,
+	.napi_enable_rx		= napi_enable_rx,
+	.napi_disable_rx	= napi_disable_rx,
+	.rx_bd_done		= rx_bd_done,
+	.tx_kickstart		= tx_kickstart,
+	.get_int_events		= get_int_events,
+	.clear_int_events	= clear_int_events,
+	.ev_error		= ev_error,
+	.get_regs		= get_regs,
+	.get_regs_len		= get_regs_len,
+	.tx_restart		= tx_restart,
+	.allocate_bd		= allocate_bd,
+	.free_bd		= free_bd,
+};
+
+/***********************************************************************/
+
+static int mii_read(struct fs_enet_mii_bus *bus, int phy_id, int location)
+{
+	fec_t *fecp = bus->fec.fecp;
+	int i, ret = -1;
+
+	if ((FR(fecp, r_cntrl) & FEC_RCNTRL_MII_MODE) == 0)
+		BUG();
+
+	/* Add PHY address to register command.  */
+	FW(fecp, mii_data, (phy_id << 23) | mk_mii_read(location));
+
+	for (i = 0; i < FEC_MII_LOOPS; i++)
+		if ((FR(fecp, ievent) & FEC_ENET_MII) != 0)
+			break;
+
+	if (i < FEC_MII_LOOPS) {
+		FW(fecp, ievent, FEC_ENET_MII);
+		ret = FR(fecp, mii_data) & 0xffff;
+	}
+
+	return ret;
+}
+
+static void mii_write(struct fs_enet_mii_bus *bus, int phy_id, int location, int value)
+{
+	fec_t *fecp = bus->fec.fecp;
+	int i;
+
+	/* this must never happen */
+	if ((FR(fecp, r_cntrl) & FEC_RCNTRL_MII_MODE) == 0)
+		BUG();
+
+	/* Add PHY address to register command.  */
+	FW(fecp, mii_data, (phy_id << 23) | mk_mii_write(location, value));
+
+	for (i = 0; i < FEC_MII_LOOPS; i++)
+		if ((FR(fecp, ievent) & FEC_ENET_MII) != 0)
+			break;
+
+	if (i < FEC_MII_LOOPS)
+		FW(fecp, ievent, FEC_ENET_MII);
+}
+
+int fs_mii_fec_init(struct fs_enet_mii_bus *bus)
+{
+	bd_t *bd = (bd_t *)__res;
+	const struct fs_mii_bus_info *bi = bus->bus_info;
+	fec_t *fecp;
+
+	if (bi->id != 0)
+		return -1;
+
+	bus->fec.fecp = &((immap_t *)fs_enet_immap)->im_cpm.cp_fec;
+	bus->fec.mii_speed = ((((bd->bi_intfreq + 4999999) / 2500000) / 2)
+				& 0x3F) << 1;
+
+	fecp = bus->fec.fecp;
+
+	FS(fecp, r_cntrl, FEC_RCNTRL_MII_MODE);	/* MII enable */
+	FS(fecp, ecntrl, FEC_ECNTRL_PINMUX | FEC_ECNTRL_ETHER_EN);
+	FW(fecp, ievent, FEC_ENET_MII);
+	FW(fecp, mii_speed, bus->fec.mii_speed);
+
+	bus->mii_read = mii_read;
+	bus->mii_write = mii_write;
+
+	return 0;
+}
diff --git a/drivers/net/fs_enet/mac-scc.c b/drivers/net/fs_enet/mac-scc.c
new file mode 100644
index 000000000000..d8c6e9cadcf5
--- /dev/null
+++ b/drivers/net/fs_enet/mac-scc.c
@@ -0,0 +1,524 @@
+/*
+ * Ethernet on Serial Communications Controller (SCC) driver for Motorola MPC8xx and MPC82xx.
+ *
+ * Copyright (c) 2003 Intracom S.A. 
+ *  by Pantelis Antoniou <panto@intracom.gr>
+ * 
+ * 2005 (c) MontaVista Software, Inc. 
+ * Vitaly Bordug <vbordug@ru.mvista.com>
+ *
+ * This file is licensed under the terms of the GNU General Public License 
+ * version 2. This program is licensed "as is" without any warranty of any 
+ * kind, whether express or implied.
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/sched.h>
+#include <linux/string.h>
+#include <linux/ptrace.h>
+#include <linux/errno.h>
+#include <linux/ioport.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/spinlock.h>
+#include <linux/mii.h>
+#include <linux/ethtool.h>
+#include <linux/bitops.h>
+#include <linux/fs.h>
+
+#include <asm/irq.h>
+#include <asm/uaccess.h>
+
+#ifdef CONFIG_8xx
+#include <asm/8xx_immap.h>
+#include <asm/pgtable.h>
+#include <asm/mpc8xx.h>
+#include <asm/commproc.h>
+#endif
+
+#include "fs_enet.h"
+
+/*************************************************/
+
+#if defined(CONFIG_CPM1)
+/* for a 8xx __raw_xxx's are sufficient */
+#define __fs_out32(addr, x)	__raw_writel(x, addr)
+#define __fs_out16(addr, x)	__raw_writew(x, addr)
+#define __fs_out8(addr, x)	__raw_writeb(x, addr)
+#define __fs_in32(addr)	__raw_readl(addr)
+#define __fs_in16(addr)	__raw_readw(addr)
+#define __fs_in8(addr)	__raw_readb(addr)
+#else
+/* for others play it safe */
+#define __fs_out32(addr, x)	out_be32(addr, x)
+#define __fs_out16(addr, x)	out_be16(addr, x)
+#define __fs_in32(addr)	in_be32(addr)
+#define __fs_in16(addr)	in_be16(addr)
+#endif
+
+/* write, read, set bits, clear bits */
+#define W32(_p, _m, _v) __fs_out32(&(_p)->_m, (_v))
+#define R32(_p, _m)     __fs_in32(&(_p)->_m)
+#define S32(_p, _m, _v) W32(_p, _m, R32(_p, _m) | (_v))
+#define C32(_p, _m, _v) W32(_p, _m, R32(_p, _m) & ~(_v))
+
+#define W16(_p, _m, _v) __fs_out16(&(_p)->_m, (_v))
+#define R16(_p, _m)     __fs_in16(&(_p)->_m)
+#define S16(_p, _m, _v) W16(_p, _m, R16(_p, _m) | (_v))
+#define C16(_p, _m, _v) W16(_p, _m, R16(_p, _m) & ~(_v))
+
+#define W8(_p, _m, _v)  __fs_out8(&(_p)->_m, (_v))
+#define R8(_p, _m)      __fs_in8(&(_p)->_m)
+#define S8(_p, _m, _v)  W8(_p, _m, R8(_p, _m) | (_v))
+#define C8(_p, _m, _v)  W8(_p, _m, R8(_p, _m) & ~(_v))
+
+#define SCC_MAX_MULTICAST_ADDRS	64
+
+/*
+ * Delay to wait for SCC reset command to complete (in us) 
+ */
+#define SCC_RESET_DELAY		50
+#define MAX_CR_CMD_LOOPS	10000
+
+static inline int scc_cr_cmd(struct fs_enet_private *fep, u32 op)
+{
+	cpm8xx_t *cpmp = &((immap_t *)fs_enet_immap)->im_cpm;
+	u32 v, ch;
+	int i = 0;
+
+	ch = fep->scc.idx << 2;
+	v = mk_cr_cmd(ch, op);
+	W16(cpmp, cp_cpcr, v | CPM_CR_FLG);
+	for (i = 0; i < MAX_CR_CMD_LOOPS; i++)
+		if ((R16(cpmp, cp_cpcr) & CPM_CR_FLG) == 0)
+			break;
+
+	if (i >= MAX_CR_CMD_LOOPS) {
+		printk(KERN_ERR "%s(): Not able to issue CPM command\n",
+			__FUNCTION__);
+		return 1;
+	}
+	return 0;
+}
+
+static int do_pd_setup(struct fs_enet_private *fep)
+{
+	struct platform_device *pdev = to_platform_device(fep->dev);
+	struct resource *r;
+
+	/* Fill out IRQ field */
+	fep->interrupt = platform_get_irq_byname(pdev, "interrupt");
+
+	r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "regs");
+	fep->scc.sccp = (void *)r->start;
+
+	if (fep->scc.sccp == NULL)
+		return -EINVAL;
+
+	r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pram");
+	fep->scc.ep = (void *)r->start;
+
+	if (fep->scc.ep == NULL)
+		return -EINVAL;
+
+	return 0;
+}
+
+#define SCC_NAPI_RX_EVENT_MSK	(SCCE_ENET_RXF | SCCE_ENET_RXB)
+#define SCC_RX_EVENT		(SCCE_ENET_RXF)
+#define SCC_TX_EVENT		(SCCE_ENET_TXB)
+#define SCC_ERR_EVENT_MSK	(SCCE_ENET_TXE | SCCE_ENET_BSY)
+
+static int setup_data(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	const struct fs_platform_info *fpi = fep->fpi;
+
+	fep->scc.idx = fs_get_scc_index(fpi->fs_no);
+	if ((unsigned int)fep->fcc.idx > 4)	/* max 4 SCCs */
+		return -EINVAL;
+
+	do_pd_setup(fep);
+
+	fep->scc.hthi = 0;
+	fep->scc.htlo = 0;
+
+	fep->ev_napi_rx = SCC_NAPI_RX_EVENT_MSK;
+	fep->ev_rx = SCC_RX_EVENT;
+	fep->ev_tx = SCC_TX_EVENT;
+	fep->ev_err = SCC_ERR_EVENT_MSK;
+
+	return 0;
+}
+
+static int allocate_bd(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	const struct fs_platform_info *fpi = fep->fpi;
+
+	fep->ring_mem_addr = cpm_dpalloc((fpi->tx_ring + fpi->rx_ring) *
+					 sizeof(cbd_t), 8);
+	if (IS_DPERR(fep->ring_mem_addr))
+		return -ENOMEM;
+
+	fep->ring_base = cpm_dpram_addr(fep->ring_mem_addr);
+
+	return 0;
+}
+
+static void free_bd(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+
+	if (fep->ring_base)
+		cpm_dpfree(fep->ring_mem_addr);
+}
+
+static void cleanup_data(struct net_device *dev)
+{
+	/* nothing */
+}
+
+static void set_promiscuous_mode(struct net_device *dev)
+{				
+	struct fs_enet_private *fep = netdev_priv(dev);
+	scc_t *sccp = fep->scc.sccp;
+
+	S16(sccp, scc_psmr, SCC_PSMR_PRO);
+}
+
+static void set_multicast_start(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	scc_enet_t *ep = fep->scc.ep;
+
+	W16(ep, sen_gaddr1, 0);
+	W16(ep, sen_gaddr2, 0);
+	W16(ep, sen_gaddr3, 0);
+	W16(ep, sen_gaddr4, 0);
+}
+
+static void set_multicast_one(struct net_device *dev, const u8 * mac)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	scc_enet_t *ep = fep->scc.ep;
+	u16 taddrh, taddrm, taddrl;
+
+	taddrh = ((u16) mac[5] << 8) | mac[4];
+	taddrm = ((u16) mac[3] << 8) | mac[2];
+	taddrl = ((u16) mac[1] << 8) | mac[0];
+
+	W16(ep, sen_taddrh, taddrh);
+	W16(ep, sen_taddrm, taddrm);
+	W16(ep, sen_taddrl, taddrl);
+	scc_cr_cmd(fep, CPM_CR_SET_GADDR);
+}
+
+static void set_multicast_finish(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	scc_t *sccp = fep->scc.sccp;
+	scc_enet_t *ep = fep->scc.ep;
+
+	/* clear promiscuous always */
+	C16(sccp, scc_psmr, SCC_PSMR_PRO);
+
+	/* if all multi or too many multicasts; just enable all */
+	if ((dev->flags & IFF_ALLMULTI) != 0 ||
+	    dev->mc_count > SCC_MAX_MULTICAST_ADDRS) {
+
+		W16(ep, sen_gaddr1, 0xffff);
+		W16(ep, sen_gaddr2, 0xffff);
+		W16(ep, sen_gaddr3, 0xffff);
+		W16(ep, sen_gaddr4, 0xffff);
+	}
+}
+
+static void set_multicast_list(struct net_device *dev)
+{
+	struct dev_mc_list *pmc;
+
+	if ((dev->flags & IFF_PROMISC) == 0) {
+		set_multicast_start(dev);
+		for (pmc = dev->mc_list; pmc != NULL; pmc = pmc->next)
+			set_multicast_one(dev, pmc->dmi_addr);
+		set_multicast_finish(dev);
+	} else
+		set_promiscuous_mode(dev);
+}
+
+/*
+ * This function is called to start or restart the FEC during a link
+ * change.  This only happens when switching between half and full
+ * duplex.
+ */
+static void restart(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	scc_t *sccp = fep->scc.sccp;
+	scc_enet_t *ep = fep->scc.ep;
+	const struct fs_platform_info *fpi = fep->fpi;
+	u16 paddrh, paddrm, paddrl;
+	const unsigned char *mac;
+	int i;
+
+	C32(sccp, scc_gsmrl, SCC_GSMRL_ENR | SCC_GSMRL_ENT);
+
+	/* clear everything (slow & steady does it) */
+	for (i = 0; i < sizeof(*ep); i++)
+		__fs_out8((char *)ep + i, 0);
+
+	/* point to bds */
+	W16(ep, sen_genscc.scc_rbase, fep->ring_mem_addr);
+	W16(ep, sen_genscc.scc_tbase,
+	    fep->ring_mem_addr + sizeof(cbd_t) * fpi->rx_ring);
+
+	/* Initialize function code registers for big-endian.
+	 */
+	W8(ep, sen_genscc.scc_rfcr, SCC_EB);
+	W8(ep, sen_genscc.scc_tfcr, SCC_EB);
+
+	/* Set maximum bytes per receive buffer.
+	 * This appears to be an Ethernet frame size, not the buffer
+	 * fragment size.  It must be a multiple of four.
+	 */
+	W16(ep, sen_genscc.scc_mrblr, 0x5f0);
+
+	/* Set CRC preset and mask.
+	 */
+	W32(ep, sen_cpres, 0xffffffff);
+	W32(ep, sen_cmask, 0xdebb20e3);
+
+	W32(ep, sen_crcec, 0);	/* CRC Error counter */
+	W32(ep, sen_alec, 0);	/* alignment error counter */
+	W32(ep, sen_disfc, 0);	/* discard frame counter */
+
+	W16(ep, sen_pads, 0x8888);	/* Tx short frame pad character */
+	W16(ep, sen_retlim, 15);	/* Retry limit threshold */
+
+	W16(ep, sen_maxflr, 0x5ee);	/* maximum frame length register */
+
+	W16(ep, sen_minflr, PKT_MINBUF_SIZE);	/* minimum frame length register */
+
+	W16(ep, sen_maxd1, 0x000005f0);	/* maximum DMA1 length */
+	W16(ep, sen_maxd2, 0x000005f0);	/* maximum DMA2 length */
+
+	/* Clear hash tables.
+	 */
+	W16(ep, sen_gaddr1, 0);
+	W16(ep, sen_gaddr2, 0);
+	W16(ep, sen_gaddr3, 0);
+	W16(ep, sen_gaddr4, 0);
+	W16(ep, sen_iaddr1, 0);
+	W16(ep, sen_iaddr2, 0);
+	W16(ep, sen_iaddr3, 0);
+	W16(ep, sen_iaddr4, 0);
+
+	/* set address 
+	 */
+	mac = dev->dev_addr;
+	paddrh = ((u16) mac[5] << 8) | mac[4];
+	paddrm = ((u16) mac[3] << 8) | mac[2];
+	paddrl = ((u16) mac[1] << 8) | mac[0];
+
+	W16(ep, sen_paddrh, paddrh);
+	W16(ep, sen_paddrm, paddrm);
+	W16(ep, sen_paddrl, paddrl);
+
+	W16(ep, sen_pper, 0);
+	W16(ep, sen_taddrl, 0);
+	W16(ep, sen_taddrm, 0);
+	W16(ep, sen_taddrh, 0);
+
+	fs_init_bds(dev);
+
+	scc_cr_cmd(fep, CPM_CR_INIT_TRX);
+
+	W16(sccp, scc_scce, 0xffff);
+
+	/* Enable interrupts we wish to service. 
+	 */
+	W16(sccp, scc_sccm, SCCE_ENET_TXE | SCCE_ENET_RXF | SCCE_ENET_TXB);
+
+	/* Set GSMR_H to enable all normal operating modes.
+	 * Set GSMR_L to enable Ethernet to MC68160.
+	 */
+	W32(sccp, scc_gsmrh, 0);
+	W32(sccp, scc_gsmrl,
+	    SCC_GSMRL_TCI | SCC_GSMRL_TPL_48 | SCC_GSMRL_TPP_10 |
+	    SCC_GSMRL_MODE_ENET);
+
+	/* Set sync/delimiters.
+	 */
+	W16(sccp, scc_dsr, 0xd555);
+
+	/* Set processing mode.  Use Ethernet CRC, catch broadcast, and
+	 * start frame search 22 bit times after RENA.
+	 */
+	W16(sccp, scc_psmr, SCC_PSMR_ENCRC | SCC_PSMR_NIB22);
+
+	/* Set full duplex mode if needed */
+	if (fep->duplex)
+		S16(sccp, scc_psmr, SCC_PSMR_LPB | SCC_PSMR_FDE);
+
+	S32(sccp, scc_gsmrl, SCC_GSMRL_ENR | SCC_GSMRL_ENT);
+}
+
+static void stop(struct net_device *dev)	
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	scc_t *sccp = fep->scc.sccp;
+	int i;
+
+	for (i = 0; (R16(sccp, scc_sccm) == 0) && i < SCC_RESET_DELAY; i++)
+		udelay(1);
+
+	if (i == SCC_RESET_DELAY)
+		printk(KERN_WARNING DRV_MODULE_NAME
+		       ": %s SCC timeout on graceful transmit stop\n",
+		       dev->name);
+
+	W16(sccp, scc_sccm, 0);
+	C32(sccp, scc_gsmrl, SCC_GSMRL_ENR | SCC_GSMRL_ENT);
+
+	fs_cleanup_bds(dev);
+}
+
+static void pre_request_irq(struct net_device *dev, int irq)
+{
+	immap_t *immap = fs_enet_immap;
+	u32 siel;
+
+	/* SIU interrupt */
+	if (irq >= SIU_IRQ0 && irq < SIU_LEVEL7) {
+
+		siel = in_be32(&immap->im_siu_conf.sc_siel);
+		if ((irq & 1) == 0)
+			siel |= (0x80000000 >> irq);
+		else
+			siel &= ~(0x80000000 >> (irq & ~1));
+		out_be32(&immap->im_siu_conf.sc_siel, siel);
+	}
+}
+
+static void post_free_irq(struct net_device *dev, int irq)
+{
+	/* nothing */
+}
+
+static void napi_clear_rx_event(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	scc_t *sccp = fep->scc.sccp;
+
+	W16(sccp, scc_scce, SCC_NAPI_RX_EVENT_MSK);
+}
+
+static void napi_enable_rx(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	scc_t *sccp = fep->scc.sccp;
+
+	S16(sccp, scc_sccm, SCC_NAPI_RX_EVENT_MSK);
+}
+
+static void napi_disable_rx(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	scc_t *sccp = fep->scc.sccp;
+
+	C16(sccp, scc_sccm, SCC_NAPI_RX_EVENT_MSK);
+}
+
+static void rx_bd_done(struct net_device *dev)
+{
+	/* nothing */
+}
+
+static void tx_kickstart(struct net_device *dev)
+{
+	/* nothing */
+}
+
+static u32 get_int_events(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	scc_t *sccp = fep->scc.sccp;
+
+	return (u32) R16(sccp, scc_scce);
+}
+
+static void clear_int_events(struct net_device *dev, u32 int_events)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+	scc_t *sccp = fep->scc.sccp;
+
+	W16(sccp, scc_scce, int_events & 0xffff);
+}
+
+static void ev_error(struct net_device *dev, u32 int_events)
+{
+	printk(KERN_WARNING DRV_MODULE_NAME
+	       ": %s SCC ERROR(s) 0x%x\n", dev->name, int_events);
+}
+
+static int get_regs(struct net_device *dev, void *p, int *sizep)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+
+	if (*sizep < sizeof(scc_t) + sizeof(scc_enet_t))
+		return -EINVAL;
+
+	memcpy_fromio(p, fep->scc.sccp, sizeof(scc_t));
+	p = (char *)p + sizeof(scc_t);
+
+	memcpy_fromio(p, fep->scc.ep, sizeof(scc_enet_t));
+
+	return 0;
+}
+
+static int get_regs_len(struct net_device *dev)
+{
+	return sizeof(scc_t) + sizeof(scc_enet_t);
+}
+
+static void tx_restart(struct net_device *dev)
+{
+	struct fs_enet_private *fep = netdev_priv(dev);
+
+	scc_cr_cmd(fep, CPM_CR_RESTART_TX);
+}
+
+/*************************************************************************/
+
+const struct fs_ops fs_scc_ops = {
+	.setup_data		= setup_data,
+	.cleanup_data		= cleanup_data,
+	.set_multicast_list	= set_multicast_list,
+	.restart		= restart,
+	.stop			= stop,
+	.pre_request_irq	= pre_request_irq,
+	.post_free_irq		= post_free_irq,
+	.napi_clear_rx_event	= napi_clear_rx_event,
+	.napi_enable_rx		= napi_enable_rx,
+	.napi_disable_rx	= napi_disable_rx,
+	.rx_bd_done		= rx_bd_done,
+	.tx_kickstart		= tx_kickstart,
+	.get_int_events		= get_int_events,
+	.clear_int_events	= clear_int_events,
+	.ev_error		= ev_error,
+	.get_regs		= get_regs,
+	.get_regs_len		= get_regs_len,
+	.tx_restart		= tx_restart,
+	.allocate_bd		= allocate_bd,
+	.free_bd		= free_bd,
+};
diff --git a/drivers/net/fs_enet/mii-bitbang.c b/drivers/net/fs_enet/mii-bitbang.c
new file mode 100644
index 000000000000..24a5e2e23d18
--- /dev/null
+++ b/drivers/net/fs_enet/mii-bitbang.c
@@ -0,0 +1,405 @@
+/*
+ * Combined Ethernet driver for Motorola MPC8xx and MPC82xx.
+ *
+ * Copyright (c) 2003 Intracom S.A. 
+ *  by Pantelis Antoniou <panto@intracom.gr>
+ * 
+ * 2005 (c) MontaVista Software, Inc. 
+ * Vitaly Bordug <vbordug@ru.mvista.com>
+ *
+ * This file is licensed under the terms of the GNU General Public License 
+ * version 2. This program is licensed "as is" without any warranty of any 
+ * kind, whether express or implied.
+ */
+
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/string.h>
+#include <linux/ptrace.h>
+#include <linux/errno.h>
+#include <linux/ioport.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/spinlock.h>
+#include <linux/mii.h>
+#include <linux/ethtool.h>
+#include <linux/bitops.h>
+
+#include <asm/pgtable.h>
+#include <asm/irq.h>
+#include <asm/uaccess.h>
+
+#include "fs_enet.h"
+
+#ifdef CONFIG_8xx
+static int bitbang_prep_bit(u8 **dirp, u8 **datp, u8 *mskp, int port, int bit)
+{
+	immap_t *im = (immap_t *)fs_enet_immap;
+	void *dir, *dat, *ppar;
+	int adv;
+	u8 msk;
+
+	switch (port) {
+		case fsiop_porta:
+			dir = &im->im_ioport.iop_padir;
+			dat = &im->im_ioport.iop_padat;
+			ppar = &im->im_ioport.iop_papar;
+			break;
+
+		case fsiop_portb:
+			dir = &im->im_cpm.cp_pbdir;
+			dat = &im->im_cpm.cp_pbdat;
+			ppar = &im->im_cpm.cp_pbpar;
+			break;
+
+		case fsiop_portc:
+			dir = &im->im_ioport.iop_pcdir;
+			dat = &im->im_ioport.iop_pcdat;
+			ppar = &im->im_ioport.iop_pcpar;
+			break;
+
+		case fsiop_portd:
+			dir = &im->im_ioport.iop_pddir;
+			dat = &im->im_ioport.iop_pddat;
+			ppar = &im->im_ioport.iop_pdpar;
+			break;
+
+		case fsiop_porte:
+			dir = &im->im_cpm.cp_pedir;
+			dat = &im->im_cpm.cp_pedat;
+			ppar = &im->im_cpm.cp_pepar;
+			break;
+
+		default:
+			printk(KERN_ERR DRV_MODULE_NAME
+			       "Illegal port value %d!\n", port);
+			return -EINVAL;
+	}
+
+	adv = bit >> 3;
+	dir = (char *)dir + adv;
+	dat = (char *)dat + adv;
+	ppar = (char *)ppar + adv;
+
+	msk = 1 << (7 - (bit & 7));
+	if ((in_8(ppar) & msk) != 0) {
+		printk(KERN_ERR DRV_MODULE_NAME
+		       "pin %d on port %d is not general purpose!\n", bit, port);
+		return -EINVAL;
+	}
+
+	*dirp = dir;
+	*datp = dat;
+	*mskp = msk;
+
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_8260
+static int bitbang_prep_bit(u8 **dirp, u8 **datp, u8 *mskp, int port, int bit)
+{
+	iop_cpm2_t *io = &((cpm2_map_t *)fs_enet_immap)->im_ioport;
+	void *dir, *dat, *ppar;
+	int adv;
+	u8 msk;
+
+	switch (port) {
+		case fsiop_porta:
+			dir = &io->iop_pdira;
+			dat = &io->iop_pdata;
+			ppar = &io->iop_ppara;
+			break;
+
+		case fsiop_portb:
+			dir = &io->iop_pdirb;
+			dat = &io->iop_pdatb;
+			ppar = &io->iop_pparb;
+			break;
+
+		case fsiop_portc:
+			dir = &io->iop_pdirc;
+			dat = &io->iop_pdatc;
+			ppar = &io->iop_pparc;
+			break;
+
+		case fsiop_portd:
+			dir = &io->iop_pdird;
+			dat = &io->iop_pdatd;
+			ppar = &io->iop_ppard;
+			break;
+
+		default:
+			printk(KERN_ERR DRV_MODULE_NAME
+			       "Illegal port value %d!\n", port);
+			return -EINVAL;
+	}
+
+	adv = bit >> 3;
+	dir = (char *)dir + adv;
+	dat = (char *)dat + adv;
+	ppar = (char *)ppar + adv;
+
+	msk = 1 << (7 - (bit & 7));
+	if ((in_8(ppar) & msk) != 0) {
+		printk(KERN_ERR DRV_MODULE_NAME
+		       "pin %d on port %d is not general purpose!\n", bit, port);
+		return -EINVAL;
+	}
+
+	*dirp = dir;
+	*datp = dat;
+	*mskp = msk;
+
+	return 0;
+}
+#endif
+
+static inline void bb_set(u8 *p, u8 m)
+{
+	out_8(p, in_8(p) | m);
+}
+
+static inline void bb_clr(u8 *p, u8 m)
+{
+	out_8(p, in_8(p) & ~m);
+}
+
+static inline int bb_read(u8 *p, u8 m)
+{
+	return (in_8(p) & m) != 0;
+}
+
+static inline void mdio_active(struct fs_enet_mii_bus *bus)
+{
+	bb_set(bus->bitbang.mdio_dir, bus->bitbang.mdio_msk);
+}
+
+static inline void mdio_tristate(struct fs_enet_mii_bus *bus)
+{
+	bb_clr(bus->bitbang.mdio_dir, bus->bitbang.mdio_msk);
+}
+
+static inline int mdio_read(struct fs_enet_mii_bus *bus)
+{
+	return bb_read(bus->bitbang.mdio_dat, bus->bitbang.mdio_msk);
+}
+
+static inline void mdio(struct fs_enet_mii_bus *bus, int what)
+{
+	if (what)
+		bb_set(bus->bitbang.mdio_dat, bus->bitbang.mdio_msk);
+	else
+		bb_clr(bus->bitbang.mdio_dat, bus->bitbang.mdio_msk);
+}
+
+static inline void mdc(struct fs_enet_mii_bus *bus, int what)
+{
+	if (what)
+		bb_set(bus->bitbang.mdc_dat, bus->bitbang.mdc_msk);
+	else
+		bb_clr(bus->bitbang.mdc_dat, bus->bitbang.mdc_msk);
+}
+
+static inline void mii_delay(struct fs_enet_mii_bus *bus)
+{
+	udelay(bus->bus_info->i.bitbang.delay);
+}
+
+/* Utility to send the preamble, address, and register (common to read and write). */
+static void bitbang_pre(struct fs_enet_mii_bus *bus, int read, u8 addr, u8 reg)
+{
+	int j;
+
+	/*
+	 * Send a 32 bit preamble ('1's) with an extra '1' bit for good measure.
+	 * The IEEE spec says this is a PHY optional requirement.  The AMD
+	 * 79C874 requires one after power up and one after a MII communications
+	 * error.  This means that we are doing more preambles than we need,
+	 * but it is safer and will be much more robust.
+	 */
+
+	mdio_active(bus);
+	mdio(bus, 1);
+	for (j = 0; j < 32; j++) {
+		mdc(bus, 0);
+		mii_delay(bus);
+		mdc(bus, 1);
+		mii_delay(bus);
+	}
+
+	/* send the start bit (01) and the read opcode (10) or write (10) */
+	mdc(bus, 0);
+	mdio(bus, 0);
+	mii_delay(bus);
+	mdc(bus, 1);
+	mii_delay(bus);
+	mdc(bus, 0);
+	mdio(bus, 1);
+	mii_delay(bus);
+	mdc(bus, 1);
+	mii_delay(bus);
+	mdc(bus, 0);
+	mdio(bus, read);
+	mii_delay(bus);
+	mdc(bus, 1);
+	mii_delay(bus);
+	mdc(bus, 0);
+	mdio(bus, !read);
+	mii_delay(bus);
+	mdc(bus, 1);
+	mii_delay(bus);
+
+	/* send the PHY address */
+	for (j = 0; j < 5; j++) {
+		mdc(bus, 0);
+		mdio(bus, (addr & 0x10) != 0);
+		mii_delay(bus);
+		mdc(bus, 1);
+		mii_delay(bus);
+		addr <<= 1;
+	}
+
+	/* send the register address */
+	for (j = 0; j < 5; j++) {
+		mdc(bus, 0);
+		mdio(bus, (reg & 0x10) != 0);
+		mii_delay(bus);
+		mdc(bus, 1);
+		mii_delay(bus);
+		reg <<= 1;
+	}
+}
+
+static int mii_read(struct fs_enet_mii_bus *bus, int phy_id, int location)
+{
+	u16 rdreg;
+	int ret, j;
+	u8 addr = phy_id & 0xff;
+	u8 reg = location & 0xff;
+
+	bitbang_pre(bus, 1, addr, reg);
+
+	/* tri-state our MDIO I/O pin so we can read */
+	mdc(bus, 0);
+	mdio_tristate(bus);
+	mii_delay(bus);
+	mdc(bus, 1);
+	mii_delay(bus);
+
+	/* check the turnaround bit: the PHY should be driving it to zero */
+	if (mdio_read(bus) != 0) {
+		/* PHY didn't drive TA low */
+		for (j = 0; j < 32; j++) {
+			mdc(bus, 0);
+			mii_delay(bus);
+			mdc(bus, 1);
+			mii_delay(bus);
+		}
+		ret = -1;
+		goto out;
+	}
+
+	mdc(bus, 0);
+	mii_delay(bus);
+
+	/* read 16 bits of register data, MSB first */
+	rdreg = 0;
+	for (j = 0; j < 16; j++) {
+		mdc(bus, 1);
+		mii_delay(bus);
+		rdreg <<= 1;
+		rdreg |= mdio_read(bus);
+		mdc(bus, 0);
+		mii_delay(bus);
+	}
+
+	mdc(bus, 1);
+	mii_delay(bus);
+	mdc(bus, 0);
+	mii_delay(bus);
+	mdc(bus, 1);
+	mii_delay(bus);
+
+	ret = rdreg;
+out:
+	return ret;
+}
+
+static void mii_write(struct fs_enet_mii_bus *bus, int phy_id, int location, int val)
+{
+	int j;
+	u8 addr = phy_id & 0xff;
+	u8 reg = location & 0xff;
+	u16 value = val & 0xffff;
+
+	bitbang_pre(bus, 0, addr, reg);
+
+	/* send the turnaround (10) */
+	mdc(bus, 0);
+	mdio(bus, 1);
+	mii_delay(bus);
+	mdc(bus, 1);
+	mii_delay(bus);
+	mdc(bus, 0);
+	mdio(bus, 0);
+	mii_delay(bus);
+	mdc(bus, 1);
+	mii_delay(bus);
+
+	/* write 16 bits of register data, MSB first */
+	for (j = 0; j < 16; j++) {
+		mdc(bus, 0);
+		mdio(bus, (value & 0x8000) != 0);
+		mii_delay(bus);
+		mdc(bus, 1);
+		mii_delay(bus);
+		value <<= 1;
+	}
+
+	/*
+	 * Tri-state the MDIO line.
+	 */
+	mdio_tristate(bus);
+	mdc(bus, 0);
+	mii_delay(bus);
+	mdc(bus, 1);
+	mii_delay(bus);
+}
+
+int fs_mii_bitbang_init(struct fs_enet_mii_bus *bus)
+{
+	const struct fs_mii_bus_info *bi = bus->bus_info;
+	int r;
+
+	r = bitbang_prep_bit(&bus->bitbang.mdio_dir,
+			 &bus->bitbang.mdio_dat,
+			 &bus->bitbang.mdio_msk,
+			 bi->i.bitbang.mdio_port,
+			 bi->i.bitbang.mdio_bit);
+	if (r != 0)
+		return r;
+
+	r = bitbang_prep_bit(&bus->bitbang.mdc_dir,
+			 &bus->bitbang.mdc_dat,
+			 &bus->bitbang.mdc_msk,
+			 bi->i.bitbang.mdc_port,
+			 bi->i.bitbang.mdc_bit);
+	if (r != 0)
+		return r;
+
+	bus->mii_read = mii_read;
+	bus->mii_write = mii_write;
+
+	return 0;
+}
diff --git a/drivers/net/fs_enet/mii-fixed.c b/drivers/net/fs_enet/mii-fixed.c
new file mode 100644
index 000000000000..b3e192d612e5
--- /dev/null
+++ b/drivers/net/fs_enet/mii-fixed.c
@@ -0,0 +1,92 @@
+/*
+ * Combined Ethernet driver for Motorola MPC8xx and MPC82xx.
+ *
+ * Copyright (c) 2003 Intracom S.A. 
+ *  by Pantelis Antoniou <panto@intracom.gr>
+ * 
+ * 2005 (c) MontaVista Software, Inc. 
+ * Vitaly Bordug <vbordug@ru.mvista.com>
+ *
+ * This file is licensed under the terms of the GNU General Public License 
+ * version 2. This program is licensed "as is" without any warranty of any 
+ * kind, whether express or implied.
+ */
+
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/string.h>
+#include <linux/ptrace.h>
+#include <linux/errno.h>
+#include <linux/ioport.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/spinlock.h>
+#include <linux/mii.h>
+#include <linux/ethtool.h>
+#include <linux/bitops.h>
+
+#include <asm/pgtable.h>
+#include <asm/irq.h>
+#include <asm/uaccess.h>
+
+#include "fs_enet.h"
+
+static const u16 mii_regs[7] = {
+	0x3100,
+	0x786d,
+	0x0fff,
+	0x0fff,
+	0x01e1,
+	0x45e1,
+	0x0003,
+};
+
+static int mii_read(struct fs_enet_mii_bus *bus, int phy_id, int location)
+{
+	int ret = 0;
+
+	if ((unsigned int)location >= ARRAY_SIZE(mii_regs))
+		return -1;
+
+	if (location != 5)
+		ret = mii_regs[location];
+	else
+		ret = bus->fixed.lpa;
+
+	return ret;
+}
+
+static void mii_write(struct fs_enet_mii_bus *bus, int phy_id, int location, int val)
+{
+	/* do nothing */
+}
+
+int fs_mii_fixed_init(struct fs_enet_mii_bus *bus)
+{
+	const struct fs_mii_bus_info *bi = bus->bus_info;
+
+	bus->fixed.lpa = 0x45e1;	/* default 100Mb, full duplex */
+
+	/* if speed is fixed at 10Mb, remove 100Mb modes */
+	if (bi->i.fixed.speed == 10)
+		bus->fixed.lpa &= ~LPA_100;
+
+	/* if duplex is half, remove full duplex modes */
+	if (bi->i.fixed.duplex == 0)
+		bus->fixed.lpa &= ~LPA_DUPLEX;
+
+	bus->mii_read = mii_read;
+	bus->mii_write = mii_write;
+
+	return 0;
+}
diff --git a/include/linux/fs_enet_pd.h b/include/linux/fs_enet_pd.h
new file mode 100644
index 000000000000..bef23bbf8690
--- /dev/null
+++ b/include/linux/fs_enet_pd.h
@@ -0,0 +1,136 @@
+/*
+ * Platform information definitions for the
+ * universal Freescale Ethernet driver.
+ *
+ * Copyright (c) 2003 Intracom S.A. 
+ *  by Pantelis Antoniou <panto@intracom.gr>
+ *
+ * 2005 (c) MontaVista Software, Inc. 
+ * Vitaly Bordug <vbordug@ru.mvista.com>
+ *
+ * This file is licensed under the terms of the GNU General Public License 
+ * version 2. This program is licensed "as is" without any warranty of any 
+ * kind, whether express or implied.
+ */
+
+#ifndef FS_ENET_PD_H
+#define FS_ENET_PD_H
+
+#include <linux/version.h>
+#include <asm/types.h>
+
+#define FS_ENET_NAME	"fs_enet"
+
+enum fs_id {
+	fsid_fec1,
+	fsid_fec2,
+	fsid_fcc1,
+	fsid_fcc2,
+	fsid_fcc3,
+	fsid_scc1,
+	fsid_scc2,
+	fsid_scc3,
+	fsid_scc4,
+};
+
+#define FS_MAX_INDEX	9
+
+static inline int fs_get_fec_index(enum fs_id id)
+{
+	if (id >= fsid_fec1 && id <= fsid_fec2)
+		return id - fsid_fec1;
+	return -1;
+}
+
+static inline int fs_get_fcc_index(enum fs_id id)
+{
+	if (id >= fsid_fcc1 && id <= fsid_fcc3)
+		return id - fsid_fcc1;
+	return -1;
+}
+
+static inline int fs_get_scc_index(enum fs_id id)
+{
+	if (id >= fsid_scc1 && id <= fsid_scc4)
+		return id - fsid_scc1;
+	return -1;
+}
+
+enum fs_mii_method {
+	fsmii_fixed,
+	fsmii_fec,
+	fsmii_bitbang,
+};
+
+enum fs_ioport {
+	fsiop_porta,
+	fsiop_portb,
+	fsiop_portc,
+	fsiop_portd,
+	fsiop_porte,
+};
+
+struct fs_mii_bus_info {
+	int method;		/* mii method                  */
+	int id;			/* the id of the mii_bus       */
+	int disable_aneg;	/* if the controller needs to negothiate speed & duplex */
+	int lpa; 		/* the default board-specific vallues will be applied otherwise */
+
+	union {
+		struct {
+			int duplex;
+			int speed;
+		} fixed;
+
+		struct {
+			/* nothing */
+		} fec;
+		
+		struct {
+			/* nothing */
+		} scc;
+
+		struct {
+			int mdio_port;	/* port & bit for MDIO */
+			int mdio_bit;
+			int mdc_port;	/* port & bit for MDC  */
+			int mdc_bit;
+			int delay;	/* delay in us         */
+		} bitbang;
+	} i;
+};
+
+struct fs_platform_info {
+	
+	void(*init_ioports)(void);
+	/* device specific information */
+	int fs_no;		/* controller index            */
+
+	u32 cp_page;		/* CPM page */
+	u32 cp_block;		/* CPM sblock */
+	
+	u32 clk_trx;		/* some stuff for pins & mux configuration*/
+	u32 clk_route;
+	u32 clk_mask;
+	
+	u32 mem_offset;
+	u32 dpram_offset;
+	u32 fcc_regs_c;
+	
+	u32 device_flags;
+
+	int phy_addr;		/* the phy address (-1 no phy) */
+	int phy_irq;		/* the phy irq (if it exists)  */
+
+	const struct fs_mii_bus_info *bus_info;
+
+	int rx_ring, tx_ring;	/* number of buffers on rx     */
+	__u8 macaddr[6];	/* mac address                 */
+	int rx_copybreak;	/* limit we copy small frames  */
+	int use_napi;		/* use NAPI                    */
+	int napi_weight;	/* NAPI weight                 */
+
+	int use_rmii;		/* use RMII mode 	       */
+};
+
+#endif
-- 
cgit v1.2.3


From 89358f90ab6f6657d386e77e19c805d7ab88694f Mon Sep 17 00:00:00 2001
From: Andrew Morton <akpm@osdl.org>
Date: Fri, 28 Oct 2005 16:38:02 -0400
Subject: [netdrvr b44] include linux/dma-mapping.h to eliminate warning

---
 drivers/net/b44.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'drivers')

diff --git a/drivers/net/b44.c b/drivers/net/b44.c
index 225d14fd9239..ab845076ff9f 100644
--- a/drivers/net/b44.c
+++ b/drivers/net/b44.c
@@ -19,6 +19,7 @@
 #include <linux/delay.h>
 #include <linux/init.h>
 #include <linux/version.h>
+#include <linux/dma-mapping.h>
 
 #include <asm/uaccess.h>
 #include <asm/io.h>
-- 
cgit v1.2.3


From b71b95efa5abca33e1bfb85d55162c7f99f54c23 Mon Sep 17 00:00:00 2001
From: Philippe De Muyter <phdm@macqel.be>
Date: Fri, 28 Oct 2005 12:23:47 +0200
Subject: [PATCH] sundance: fix DFE-580TX Tx Underrun

Under heavy PCI bus load, ports of the DFE-580TX 4-ethernet port board stop
working, with currently no other cure than a powercycle.  Here is a tested
fix.  By the way, I also fixed some references and attribution.

Signed-off-by: Philippe De Muyter <phdm@macqel.be>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
---
 drivers/net/sundance.c | 62 ++++++++++++++++++++++++++++++++++++++------------
 1 file changed, 48 insertions(+), 14 deletions(-)

(limited to 'drivers')

diff --git a/drivers/net/sundance.c b/drivers/net/sundance.c
index 5de0554fd7c6..0ab9c38b4a34 100644
--- a/drivers/net/sundance.c
+++ b/drivers/net/sundance.c
@@ -80,7 +80,7 @@
 	  I/O access could affect performance in ARM-based system
 	- Add Linux software VLAN support
 	
-	Version LK1.08 (D-Link):
+	Version LK1.08 (Philippe De Muyter phdm@macqel.be):
 	- Fix bug of custom mac address 
 	(StationAddr register only accept word write) 
 
@@ -91,11 +91,14 @@
 	Version LK1.09a (ICPlus):
 	- Add the delay time in reading the contents of EEPROM
 
+	Version LK1.10 (Philippe De Muyter phdm@macqel.be):
+	- Make 'unblock interface after Tx underrun' work
+
 */
 
 #define DRV_NAME	"sundance"
-#define DRV_VERSION	"1.01+LK1.09a"
-#define DRV_RELDATE	"10-Jul-2003"
+#define DRV_VERSION	"1.01+LK1.10"
+#define DRV_RELDATE	"28-Oct-2005"
 
 
 /* The user-configurable values.
@@ -263,8 +266,10 @@ IV. Notes
 IVb. References
 
 The Sundance ST201 datasheet, preliminary version.
-http://cesdis.gsfc.nasa.gov/linux/misc/100mbps.html
-http://cesdis.gsfc.nasa.gov/linux/misc/NWay.html
+The Kendin KS8723 datasheet, preliminary version.
+The ICplus IP100 datasheet, preliminary version.
+http://www.scyld.com/expert/100mbps.html
+http://www.scyld.com/expert/NWay.html
 
 IVc. Errata
 
@@ -500,6 +505,25 @@ static int netdev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
 static int  netdev_close(struct net_device *dev);
 static struct ethtool_ops ethtool_ops;
 
+static void sundance_reset(struct net_device *dev, unsigned long reset_cmd)
+{
+	struct netdev_private *np = netdev_priv(dev);
+	void __iomem *ioaddr = np->base + ASICCtrl;
+	int countdown;
+
+	/* ST201 documentation states ASICCtrl is a 32bit register */
+	iowrite32 (reset_cmd | ioread32 (ioaddr), ioaddr);
+	/* ST201 documentation states reset can take up to 1 ms */
+	countdown = 10 + 1;
+	while (ioread32 (ioaddr) & (ResetBusy << 16)) {
+		if (--countdown == 0) {
+			printk(KERN_WARNING "%s : reset not completed !!\n", dev->name);
+			break;
+		}
+		udelay(100);
+	}
+}
+
 static int __devinit sundance_probe1 (struct pci_dev *pdev,
 				      const struct pci_device_id *ent)
 {
@@ -1190,23 +1214,33 @@ static irqreturn_t intr_handler(int irq, void *dev_instance, struct pt_regs *rgs
 					    ("%s: Transmit status is %2.2x.\n",
 				     	dev->name, tx_status);
 				if (tx_status & 0x1e) {
+					if (netif_msg_tx_err(np))
+						printk("%s: Transmit error status %4.4x.\n",
+							   dev->name, tx_status);
 					np->stats.tx_errors++;
 					if (tx_status & 0x10)
 						np->stats.tx_fifo_errors++;
 					if (tx_status & 0x08)
 						np->stats.collisions++;
+					if (tx_status & 0x04)
+						np->stats.tx_fifo_errors++;
 					if (tx_status & 0x02)
 						np->stats.tx_window_errors++;
-					/* This reset has not been verified!. */
-					if (tx_status & 0x10) {	/* Reset the Tx. */
-						np->stats.tx_fifo_errors++;
-						spin_lock(&np->lock);
-						reset_tx(dev);
-						spin_unlock(&np->lock);
+					/*
+					** This reset has been verified on
+					** DFE-580TX boards ! phdm@macqel.be.
+					*/
+					if (tx_status & 0x10) {	/* TxUnderrun */
+						unsigned short txthreshold;
+
+						txthreshold = ioread16 (ioaddr + TxStartThresh);
+						/* Restart Tx FIFO and transmitter */
+						sundance_reset(dev, (NetworkReset|FIFOReset|TxReset) << 16);
+						iowrite16 (txthreshold, ioaddr + TxStartThresh);
+						/* No need to reset the Tx pointer here */
 					}
-					if (tx_status & 0x1e)	/* Restart the Tx. */
-						iowrite16 (TxEnable,
-							ioaddr + MACCtrl1);
+					/* Restart the Tx. */
+					iowrite16 (TxEnable, ioaddr + MACCtrl1);
 				}
 				/* Yup, this is a documentation bug.  It cost me *hours*. */
 				iowrite16 (0, ioaddr + TxStatus);
-- 
cgit v1.2.3


From 37448f7d39717db7c1098c1a88b9074694c69797 Mon Sep 17 00:00:00 2001
From: Eugene Surovegin <ebs@ebshome.net>
Date: Mon, 10 Oct 2005 16:58:14 -0700
Subject: [PATCH] New PowerPC 4xx on-chip ethernet controller driver

This patch replaces current PowerPC 4xx EMAC driver with
new, re-written from the scratch version. This patch is quite big
(~234K) because there is virtualy 0% of common code between old and
new version.

New driver uses NAPI, it solves stability problems under heavy packet
load and low memory, corrects chip register access and fixes numerous
small bugs I don't even remember now.

This patch has been tested on all supported in 2.6 PPC 4xx boards.
It's been used in production for almost a year now on custom
4xx hardware. PPC32 specific parts are already upstream.

Patch was acked by the current EMAC driver maintainer (Matt Porter). I
will be maintaining this new version.

Signed-off-by: Eugene Surovegin <ebs@ebshome.net>
--

 Kconfig                   |   72
 ibm_emac/Makefile         |   13
 ibm_emac/ibm_emac.h       |  418 +++--
 ibm_emac/ibm_emac_core.c  | 3414 ++++++++++++++++++++++++----------------------
 ibm_emac/ibm_emac_core.h  |  313 ++--
 ibm_emac/ibm_emac_debug.c |  377 ++---
 ibm_emac/ibm_emac_debug.h |   63
 ibm_emac/ibm_emac_mal.c   |  674 +++++----
 ibm_emac/ibm_emac_mal.h   |  336 +++-
 ibm_emac/ibm_emac_phy.c   |  335 ++--
 ibm_emac/ibm_emac_phy.h   |  105 -
 ibm_emac/ibm_emac_rgmii.c |  201 ++
 ibm_emac/ibm_emac_rgmii.h |   68
 ibm_emac/ibm_emac_tah.c   |  111 +
 ibm_emac/ibm_emac_tah.h   |   96 -
 ibm_emac/ibm_emac_zmii.c  |  255 +++
 ibm_emac/ibm_emac_zmii.h  |  114 -
 17 files changed, 4114 insertions(+), 2851 deletions(-)
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
---
 drivers/net/Kconfig                   |   72 +-
 drivers/net/ibm_emac/Makefile         |   13 +-
 drivers/net/ibm_emac/ibm_emac.h       |  408 ++--
 drivers/net/ibm_emac/ibm_emac_core.c  | 3402 +++++++++++++++++----------------
 drivers/net/ibm_emac/ibm_emac_core.h  |  313 +--
 drivers/net/ibm_emac/ibm_emac_debug.c |  363 ++--
 drivers/net/ibm_emac/ibm_emac_debug.h |   63 +
 drivers/net/ibm_emac/ibm_emac_mal.c   |  674 ++++---
 drivers/net/ibm_emac/ibm_emac_mal.h   |  332 +++-
 drivers/net/ibm_emac/ibm_emac_phy.c   |  335 ++--
 drivers/net/ibm_emac/ibm_emac_phy.h   |  105 +-
 drivers/net/ibm_emac/ibm_emac_rgmii.c |  201 ++
 drivers/net/ibm_emac/ibm_emac_rgmii.h |   60 +-
 drivers/net/ibm_emac/ibm_emac_tah.c   |  111 ++
 drivers/net/ibm_emac/ibm_emac_tah.h   |   96 +-
 drivers/net/ibm_emac/ibm_emac_zmii.c  |  255 +++
 drivers/net/ibm_emac/ibm_emac_zmii.h  |  104 +-
 17 files changed, 4085 insertions(+), 2822 deletions(-)
 create mode 100644 drivers/net/ibm_emac/ibm_emac_debug.h
 create mode 100644 drivers/net/ibm_emac/ibm_emac_rgmii.c
 create mode 100644 drivers/net/ibm_emac/ibm_emac_tah.c
 create mode 100644 drivers/net/ibm_emac/ibm_emac_zmii.c

(limited to 'drivers')

diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 27732fdeeea4..54ab70e7eff4 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -1163,38 +1163,74 @@ config IBMVETH
 	  be called ibmveth.
 
 config IBM_EMAC
-	bool "IBM PPC4xx EMAC driver support"
+	tristate "PowerPC 4xx on-chip Ethernet support"
 	depends on 4xx
-	select CRC32
-	---help---
-	  This driver supports the IBM PPC4xx EMAC family of on-chip
-	  Ethernet controllers.
-
-config IBM_EMAC_ERRMSG
-	bool "Verbose error messages"
-	depends on IBM_EMAC && BROKEN
+	help
+	  This driver supports the PowerPC 4xx EMAC family of on-chip
+          Ethernet controllers.
 
 config IBM_EMAC_RXB
 	int "Number of receive buffers"
 	depends on IBM_EMAC
-	default "128" if IBM_EMAC4
-	default "64"
+	default "128"
 
 config IBM_EMAC_TXB
 	int "Number of transmit buffers"
 	depends on IBM_EMAC
-	default "128" if IBM_EMAC4
-	default "8"
+	default "64"
+
+config IBM_EMAC_POLL_WEIGHT
+	int "MAL NAPI polling weight"
+	depends on IBM_EMAC
+	default "32"
 
-config IBM_EMAC_FGAP
-	int "Frame gap"
+config IBM_EMAC_RX_COPY_THRESHOLD
+	int "RX skb copy threshold (bytes)"
 	depends on IBM_EMAC
-	default "8"
+	default "256"
 
-config IBM_EMAC_SKBRES
-	int "Skb reserve amount"
+config IBM_EMAC_RX_SKB_HEADROOM
+	int "Additional RX skb headroom (bytes)"
 	depends on IBM_EMAC
 	default "0"
+	help
+	  Additional receive skb headroom. Note, that driver
+	  will always reserve at least 2 bytes to make IP header
+	  aligned, so usualy there is no need to add any additional
+	  headroom.
+	  
+	  If unsure, set to 0.
+
+config IBM_EMAC_PHY_RX_CLK_FIX
+	bool "PHY Rx clock workaround"
+	depends on IBM_EMAC && (405EP || 440GX || 440EP)
+	help
+	  Enable this if EMAC attached to a PHY which doesn't generate
+	  RX clock if there is no link, if this is the case, you will 
+	  see "TX disable timeout" or "RX disable timeout" in the system
+	  log.
+	  
+	  If unsure, say N.
+
+config IBM_EMAC_DEBUG
+	bool "Debugging"
+	depends on IBM_EMAC
+	default n
+
+config IBM_EMAC_ZMII
+	bool
+	depends on IBM_EMAC && (NP405H || NP405L || 44x)
+	default y
+
+config IBM_EMAC_RGMII
+	bool
+	depends on IBM_EMAC && 440GX
+	default y
+		
+config IBM_EMAC_TAH
+	bool
+	depends on IBM_EMAC && 440GX
+	default y
 
 config NET_PCI
 	bool "EISA, VLB, PCI and on board controllers"
diff --git a/drivers/net/ibm_emac/Makefile b/drivers/net/ibm_emac/Makefile
index 7f583a333c24..f98ddf0e807a 100644
--- a/drivers/net/ibm_emac/Makefile
+++ b/drivers/net/ibm_emac/Makefile
@@ -1,12 +1,11 @@
 #
-# Makefile for the IBM PPC4xx EMAC controllers
+# Makefile for the PowerPC 4xx on-chip ethernet driver
 #
 
 obj-$(CONFIG_IBM_EMAC) += ibm_emac.o
 
-ibm_emac-objs := ibm_emac_mal.o ibm_emac_core.o ibm_emac_phy.o
-
-# Only need this if you want to see additional debug messages
-ifeq ($(CONFIG_IBM_EMAC_ERRMSG), y)
-ibm_emac-objs += ibm_emac_debug.o
-endif
+ibm_emac-objs := ibm_emac_mal.o ibm_emac_core.o ibm_emac_phy.o 
+ibm_emac-$(CONFIG_IBM_EMAC_ZMII) += ibm_emac_zmii.o
+ibm_emac-$(CONFIG_IBM_EMAC_RGMII) += ibm_emac_rgmii.o
+ibm_emac-$(CONFIG_IBM_EMAC_TAH) += ibm_emac_tah.o
+ibm_emac-$(CONFIG_IBM_EMAC_DEBUG) += ibm_emac_debug.o
diff --git a/drivers/net/ibm_emac/ibm_emac.h b/drivers/net/ibm_emac/ibm_emac.h
index 15d5a0e82862..28c476f28c20 100644
--- a/drivers/net/ibm_emac/ibm_emac.h
+++ b/drivers/net/ibm_emac/ibm_emac.h
@@ -1,110 +1,142 @@
 /*
- * ibm_emac.h
+ * drivers/net/ibm_emac/ibm_emac.h
  *
+ * Register definitions for PowerPC 4xx on-chip ethernet contoller
  *
- *      Armin Kuster akuster@mvista.com
- *      June, 2002
+ * Copyright (c) 2004, 2005 Zultys Technologies.
+ * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
  *
- * Copyright 2002 MontaVista Softare Inc.
+ * Based on original work by
+ *      Matt Porter <mporter@kernel.crashing.org>
+ *      Armin Kuster <akuster@mvista.com>
+ * 	Copyright 2002-2004 MontaVista Software Inc.
  *
  * This program is free software; you can redistribute  it and/or modify it
  * under  the terms of  the GNU General  Public License as published by the
  * Free Software Foundation;  either version 2 of the  License, or (at your
  * option) any later version.
+ *
  */
+#ifndef __IBM_EMAC_H_
+#define __IBM_EMAC_H_
+
+#include <linux/config.h>
+#include <linux/types.h>
+
+/* This is a simple check to prevent use of this driver on non-tested SoCs */
+#if !defined(CONFIG_405GP) && !defined(CONFIG_405GPR) && !defined(CONFIG_405EP) && \
+    !defined(CONFIG_440GP) && !defined(CONFIG_440GX) && !defined(CONFIG_440SP) && \
+    !defined(CONFIG_440EP) && !defined(CONFIG_NP405H)
+#error	"Unknown SoC. Please, check chip user manual and make sure EMAC defines are OK"
+#endif
+
+/* EMAC registers 		Write Access rules */
+struct emac_regs {
+	u32 mr0;		/* special 	*/
+	u32 mr1;		/* Reset 	*/
+	u32 tmr0;		/* special 	*/
+	u32 tmr1;		/* special 	*/
+	u32 rmr;		/* Reset 	*/
+	u32 isr;		/* Always 	*/
+	u32 iser;		/* Reset 	*/
+	u32 iahr;		/* Reset, R, T 	*/
+	u32 ialr;		/* Reset, R, T 	*/
+	u32 vtpid;		/* Reset, R, T 	*/
+	u32 vtci;		/* Reset, R, T 	*/
+	u32 ptr;		/* Reset,    T 	*/
+	u32 iaht1;		/* Reset, R	*/
+	u32 iaht2;		/* Reset, R	*/
+	u32 iaht3;		/* Reset, R	*/
+	u32 iaht4;		/* Reset, R	*/
+	u32 gaht1;		/* Reset, R	*/
+	u32 gaht2;		/* Reset, R	*/
+	u32 gaht3;		/* Reset, R	*/
+	u32 gaht4;		/* Reset, R	*/
+	u32 lsah;
+	u32 lsal;
+	u32 ipgvr;		/* Reset,    T 	*/
+	u32 stacr;		/* special 	*/
+	u32 trtr;		/* special 	*/
+	u32 rwmr;		/* Reset 	*/
+	u32 octx;
+	u32 ocrx;
+	u32 ipcr;
+};
+
+#if !defined(CONFIG_IBM_EMAC4)
+#define EMAC_ETHTOOL_REGS_VER		0
+#define EMAC_ETHTOOL_REGS_SIZE		(sizeof(struct emac_regs) - sizeof(u32))
+#else
+#define EMAC_ETHTOOL_REGS_VER		1
+#define EMAC_ETHTOOL_REGS_SIZE		sizeof(struct emac_regs)
+#endif
 
-#ifndef _IBM_EMAC_H_
-#define _IBM_EMAC_H_
-/* General defines needed for the driver */
+/* EMACx_MR0 */
+#define EMAC_MR0_RXI			0x80000000
+#define EMAC_MR0_TXI			0x40000000
+#define EMAC_MR0_SRST			0x20000000
+#define EMAC_MR0_TXE			0x10000000
+#define EMAC_MR0_RXE			0x08000000
+#define EMAC_MR0_WKE			0x04000000
 
-/* Emac */
-typedef struct emac_regs {
-	u32 em0mr0;
-	u32 em0mr1;
-	u32 em0tmr0;
-	u32 em0tmr1;
-	u32 em0rmr;
-	u32 em0isr;
-	u32 em0iser;
-	u32 em0iahr;
-	u32 em0ialr;
-	u32 em0vtpid;
-	u32 em0vtci;
-	u32 em0ptr;
-	u32 em0iaht1;
-	u32 em0iaht2;
-	u32 em0iaht3;
-	u32 em0iaht4;
-	u32 em0gaht1;
-	u32 em0gaht2;
-	u32 em0gaht3;
-	u32 em0gaht4;
-	u32 em0lsah;
-	u32 em0lsal;
-	u32 em0ipgvr;
-	u32 em0stacr;
-	u32 em0trtr;
-	u32 em0rwmr;
-} emac_t;
+/* EMACx_MR1 */
+#define EMAC_MR1_FDE			0x80000000
+#define EMAC_MR1_ILE			0x40000000
+#define EMAC_MR1_VLE			0x20000000
+#define EMAC_MR1_EIFC			0x10000000
+#define EMAC_MR1_APP			0x08000000
+#define EMAC_MR1_IST			0x01000000
 
-/* MODE REG 0 */
-#define EMAC_M0_RXI			0x80000000
-#define EMAC_M0_TXI			0x40000000
-#define EMAC_M0_SRST			0x20000000
-#define EMAC_M0_TXE			0x10000000
-#define EMAC_M0_RXE			0x08000000
-#define EMAC_M0_WKE			0x04000000
+#define EMAC_MR1_MF_MASK		0x00c00000
+#define EMAC_MR1_MF_10			0x00000000
+#define EMAC_MR1_MF_100			0x00400000
+#if !defined(CONFIG_IBM_EMAC4)
+#define EMAC_MR1_MF_1000		0x00000000
+#define EMAC_MR1_MF_1000GPCS		0x00000000
+#define EMAC_MR1_MF_IPPA(id)		0x00000000
+#else
+#define EMAC_MR1_MF_1000		0x00800000
+#define EMAC_MR1_MF_1000GPCS		0x00c00000
+#define EMAC_MR1_MF_IPPA(id)		(((id) & 0x1f) << 6)
+#endif
 
-/* MODE Reg 1 */
-#define EMAC_M1_FDE			0x80000000
-#define EMAC_M1_ILE			0x40000000
-#define EMAC_M1_VLE			0x20000000
-#define EMAC_M1_EIFC			0x10000000
-#define EMAC_M1_APP			0x08000000
-#define EMAC_M1_AEMI			0x02000000
-#define EMAC_M1_IST			0x01000000
-#define EMAC_M1_MF_1000GPCS		0x00c00000	/* Internal GPCS */
-#define EMAC_M1_MF_1000MBPS		0x00800000	/* External GPCS */
-#define EMAC_M1_MF_100MBPS		0x00400000
-#define EMAC_M1_RFS_16K                 0x00280000	/* 000 for 512 byte */
-#define EMAC_M1_TR			0x00008000
-#ifdef CONFIG_IBM_EMAC4
-#define EMAC_M1_RFS_8K                  0x00200000
-#define EMAC_M1_RFS_4K                  0x00180000
-#define EMAC_M1_RFS_2K                  0x00100000
-#define EMAC_M1_RFS_1K                  0x00080000
-#define EMAC_M1_TX_FIFO_16K             0x00050000	/* 0's for 512 byte */
-#define EMAC_M1_TX_FIFO_8K              0x00040000
-#define EMAC_M1_TX_FIFO_4K              0x00030000
-#define EMAC_M1_TX_FIFO_2K              0x00020000
-#define EMAC_M1_TX_FIFO_1K              0x00010000
-#define EMAC_M1_TX_TR                   0x00008000
-#define EMAC_M1_TX_MWSW                 0x00001000	/* 0 wait for status */
-#define EMAC_M1_JUMBO_ENABLE            0x00000800	/* Upt to 9Kr status */
-#define EMAC_M1_OPB_CLK_66              0x00000008	/* 66Mhz */
-#define EMAC_M1_OPB_CLK_83              0x00000010	/* 83Mhz */
-#define EMAC_M1_OPB_CLK_100             0x00000018	/* 100Mhz */
-#define EMAC_M1_OPB_CLK_100P            0x00000020	/* 100Mhz+ */
-#else				/* CONFIG_IBM_EMAC4 */
-#define EMAC_M1_RFS_4K			0x00300000	/* ~4k for 512 byte */
-#define EMAC_M1_RFS_2K			0x00200000
-#define EMAC_M1_RFS_1K			0x00100000
-#define EMAC_M1_TX_FIFO_2K		0x00080000	/* 0's for 512 byte */
-#define EMAC_M1_TX_FIFO_1K		0x00040000
-#define EMAC_M1_TR0_DEPEND		0x00010000	/* 0'x for single packet */
-#define EMAC_M1_TR1_DEPEND		0x00004000
-#define EMAC_M1_TR1_MULTI		0x00002000
-#define EMAC_M1_JUMBO_ENABLE		0x00001000
-#endif				/* CONFIG_IBM_EMAC4 */
-#define EMAC_M1_BASE			(EMAC_M1_TX_FIFO_2K | \
-					EMAC_M1_APP | \
-					EMAC_M1_TR | EMAC_M1_VLE)
+#define EMAC_TX_FIFO_SIZE		2048
 
-/* Transmit Mode Register 0 */
-#define EMAC_TMR0_GNP0			0x80000000
-#define EMAC_TMR0_GNP1			0x40000000
-#define EMAC_TMR0_GNPD			0x20000000
-#define EMAC_TMR0_FC			0x10000000
+#if !defined(CONFIG_IBM_EMAC4)
+#define EMAC_MR1_RFS_4K			0x00300000
+#define EMAC_MR1_RFS_16K		0x00000000
+#define EMAC_RX_FIFO_SIZE(gige)		4096
+#define EMAC_MR1_TFS_2K			0x00080000
+#define EMAC_MR1_TR0_MULT		0x00008000
+#define EMAC_MR1_JPSM			0x00000000
+#define EMAC_MR1_BASE(opb)		(EMAC_MR1_TFS_2K | EMAC_MR1_TR0_MULT)
+#else
+#define EMAC_MR1_RFS_4K			0x00180000
+#define EMAC_MR1_RFS_16K		0x00280000
+#define EMAC_RX_FIFO_SIZE(gige)		((gige) ? 16384 : 4096)
+#define EMAC_MR1_TFS_2K			0x00020000
+#define EMAC_MR1_TR			0x00008000
+#define EMAC_MR1_MWSW_001		0x00001000
+#define EMAC_MR1_JPSM			0x00000800
+#define EMAC_MR1_OBCI_MASK		0x00000038
+#define EMAC_MR1_OBCI_50		0x00000000
+#define EMAC_MR1_OBCI_66		0x00000008
+#define EMAC_MR1_OBCI_83		0x00000010
+#define EMAC_MR1_OBCI_100		0x00000018
+#define EMAC_MR1_OBCI_100P		0x00000020
+#define EMAC_MR1_OBCI(freq)		((freq) <= 50  ? EMAC_MR1_OBCI_50 : \
+					 (freq) <= 66  ? EMAC_MR1_OBCI_66 : \
+					 (freq) <= 83  ? EMAC_MR1_OBCI_83 : \
+					 (freq) <= 100 ? EMAC_MR1_OBCI_100 : EMAC_MR1_OBCI_100P)
+#define EMAC_MR1_BASE(opb)		(EMAC_MR1_TFS_2K | EMAC_MR1_TR | \
+					 EMAC_MR1_MWSW_001 | EMAC_MR1_OBCI(opb))
+#endif
+
+/* EMACx_TMR0 */
+#define EMAC_TMR0_GNP			0x80000000
+#if !defined(CONFIG_IBM_EMAC4)
+#define EMAC_TMR0_DEFAULT		0x00000000	
+#else
 #define EMAC_TMR0_TFAE_2_32		0x00000001
 #define EMAC_TMR0_TFAE_4_64		0x00000002
 #define EMAC_TMR0_TFAE_8_128		0x00000003
@@ -112,14 +144,36 @@ typedef struct emac_regs {
 #define EMAC_TMR0_TFAE_32_512		0x00000005
 #define EMAC_TMR0_TFAE_64_1024		0x00000006
 #define EMAC_TMR0_TFAE_128_2048		0x00000007
+#define EMAC_TMR0_DEFAULT		EMAC_TMR0_TFAE_2_32
+#endif
+#define EMAC_TMR0_XMIT			(EMAC_TMR0_GNP | EMAC_TMR0_DEFAULT)
+
+/* EMACx_TMR1 */
+
+/* IBM manuals are not very clear here. 
+ * This is my interpretation of how things are. --ebs
+ */
+#if defined(CONFIG_40x)
+#define EMAC_FIFO_ENTRY_SIZE		8
+#define EMAC_MAL_BURST_SIZE		(16 * 4)
+#else
+#define EMAC_FIFO_ENTRY_SIZE		16
+#define EMAC_MAL_BURST_SIZE		(64 * 4)
+#endif
+
+#if !defined(CONFIG_IBM_EMAC4)
+#define EMAC_TMR1(l,h)			(((l) << 27) | (((h) & 0xff) << 16))
+#else
+#define EMAC_TMR1(l,h)			(((l) << 27) | (((h) & 0x3ff) << 14))
+#endif
 
-/* Receive Mode Register */
+/* EMACx_RMR */
 #define EMAC_RMR_SP			0x80000000
 #define EMAC_RMR_SFCS			0x40000000
-#define EMAC_RMR_ARRP			0x20000000
-#define EMAC_RMR_ARP			0x10000000
-#define EMAC_RMR_AROP			0x08000000
-#define EMAC_RMR_ARPI			0x04000000
+#define EMAC_RMR_RRP			0x20000000
+#define EMAC_RMR_RFP			0x10000000
+#define EMAC_RMR_ROP			0x08000000
+#define EMAC_RMR_RPIR			0x04000000
 #define EMAC_RMR_PPP			0x02000000
 #define EMAC_RMR_PME			0x01000000
 #define EMAC_RMR_PMME			0x00800000
@@ -127,6 +181,9 @@ typedef struct emac_regs {
 #define EMAC_RMR_MIAE			0x00200000
 #define EMAC_RMR_BAE			0x00100000
 #define EMAC_RMR_MAE			0x00080000
+#if !defined(CONFIG_IBM_EMAC4)
+#define EMAC_RMR_BASE			0x00000000
+#else
 #define EMAC_RMR_RFAF_2_32		0x00000001
 #define EMAC_RMR_RFAF_4_64		0x00000002
 #define EMAC_RMR_RFAF_8_128		0x00000003
@@ -134,9 +191,21 @@ typedef struct emac_regs {
 #define EMAC_RMR_RFAF_32_512		0x00000005
 #define EMAC_RMR_RFAF_64_1024		0x00000006
 #define EMAC_RMR_RFAF_128_2048		0x00000007
-#define EMAC_RMR_BASE			(EMAC_RMR_IAE | EMAC_RMR_BAE)
+#define EMAC_RMR_BASE			EMAC_RMR_RFAF_128_2048
+#endif
 
-/* Interrupt Status & enable Regs */
+/* EMACx_ISR & EMACx_ISER */
+#if !defined(CONFIG_IBM_EMAC4)
+#define EMAC_ISR_TXPE			0x00000000
+#define EMAC_ISR_RXPE			0x00000000
+#define EMAC_ISR_TXUE			0x00000000
+#define EMAC_ISR_RXOE			0x00000000
+#else
+#define EMAC_ISR_TXPE			0x20000000
+#define EMAC_ISR_RXPE			0x10000000
+#define EMAC_ISR_TXUE			0x08000000
+#define EMAC_ISR_RXOE			0x04000000
+#endif
 #define EMAC_ISR_OVR			0x02000000
 #define EMAC_ISR_PP			0x01000000
 #define EMAC_ISR_BP			0x00800000
@@ -147,53 +216,62 @@ typedef struct emac_regs {
 #define EMAC_ISR_PTLE			0x00040000
 #define EMAC_ISR_ORE			0x00020000
 #define EMAC_ISR_IRE			0x00010000
-#define EMAC_ISR_DBDM			0x00000200
-#define EMAC_ISR_DB0			0x00000100
-#define EMAC_ISR_SE0			0x00000080
-#define EMAC_ISR_TE0			0x00000040
-#define EMAC_ISR_DB1			0x00000020
-#define EMAC_ISR_SE1			0x00000010
-#define EMAC_ISR_TE1			0x00000008
+#define EMAC_ISR_SQE			0x00000080
+#define EMAC_ISR_TE			0x00000040
 #define EMAC_ISR_MOS			0x00000002
 #define EMAC_ISR_MOF			0x00000001
 
-/* STA CONTROL REG */
+/* EMACx_STACR */
+#define EMAC_STACR_PHYD_MASK		0xffff
+#define EMAC_STACR_PHYD_SHIFT		16
 #define EMAC_STACR_OC			0x00008000
 #define EMAC_STACR_PHYE			0x00004000
-#define EMAC_STACR_WRITE		0x00002000
-#define EMAC_STACR_READ			0x00001000
-#define EMAC_STACR_CLK_83MHZ		0x00000800	/* 0's for 50Mhz */
-#define EMAC_STACR_CLK_66MHZ		0x00000400
-#define EMAC_STACR_CLK_100MHZ		0x00000C00
+#define EMAC_STACR_STAC_MASK		0x00003000
+#define EMAC_STACR_STAC_READ		0x00001000
+#define EMAC_STACR_STAC_WRITE		0x00002000
+#if !defined(CONFIG_IBM_EMAC4)
+#define EMAC_STACR_OPBC_MASK		0x00000C00
+#define EMAC_STACR_OPBC_50		0x00000000
+#define EMAC_STACR_OPBC_66		0x00000400
+#define EMAC_STACR_OPBC_83		0x00000800
+#define EMAC_STACR_OPBC_100		0x00000C00
+#define EMAC_STACR_OPBC(freq)		((freq) <= 50 ? EMAC_STACR_OPBC_50 : \
+					 (freq) <= 66 ? EMAC_STACR_OPBC_66 : \
+					 (freq) <= 83 ? EMAC_STACR_OPBC_83 : EMAC_STACR_OPBC_100)
+#define EMAC_STACR_BASE(opb)		EMAC_STACR_OPBC(opb)
+#else
+#define EMAC_STACR_BASE(opb)		0x00000000
+#endif
+#define EMAC_STACR_PCDA_MASK		0x1f
+#define EMAC_STACR_PCDA_SHIFT		5
+#define EMAC_STACR_PRA_MASK		0x1f
+
+/* EMACx_TRTR */
+#if !defined(CONFIG_IBM_EMAC4)
+#define EMAC_TRTR_SHIFT			27
+#else
+#define EMAC_TRTR_SHIFT			24
+#endif
+#define EMAC_TRTR(size)			((((size) >> 6) - 1) << EMAC_TRTR_SHIFT)
 
-/* Transmit Request Threshold Register */
-#define EMAC_TRTR_1600			0x18000000	/* 0's for 64 Bytes */
-#define EMAC_TRTR_1024			0x0f000000
-#define EMAC_TRTR_512			0x07000000
-#define EMAC_TRTR_256			0x03000000
-#define EMAC_TRTR_192			0x10000000
-#define EMAC_TRTR_128			0x01000000
+/* EMACx_RWMR */
+#if !defined(CONFIG_IBM_EMAC4)
+#define EMAC_RWMR(l,h)			(((l) << 23) | ( ((h) & 0x1ff) << 7))	
+#else
+#define EMAC_RWMR(l,h)			(((l) << 22) | ( ((h) & 0x3ff) << 6))	
+#endif
 
+/* EMAC specific TX descriptor control fields (write access) */
 #define EMAC_TX_CTRL_GFCS		0x0200
 #define EMAC_TX_CTRL_GP			0x0100
 #define EMAC_TX_CTRL_ISA		0x0080
 #define EMAC_TX_CTRL_RSA		0x0040
 #define EMAC_TX_CTRL_IVT		0x0020
 #define EMAC_TX_CTRL_RVT		0x0010
-#define EMAC_TX_CTRL_TAH_CSUM		0x000e	/* TAH only */
-#define EMAC_TX_CTRL_TAH_SEG4		0x000a	/* TAH only */
-#define EMAC_TX_CTRL_TAH_SEG3		0x0008	/* TAH only */
-#define EMAC_TX_CTRL_TAH_SEG2		0x0006	/* TAH only */
-#define EMAC_TX_CTRL_TAH_SEG1		0x0004	/* TAH only */
-#define EMAC_TX_CTRL_TAH_SEG0		0x0002	/* TAH only */
-#define EMAC_TX_CTRL_TAH_DIS		0x0000	/* TAH only */
+#define EMAC_TX_CTRL_TAH_CSUM		0x000e
 
-#define EMAC_TX_CTRL_DFLT ( \
-	MAL_TX_CTRL_INTR | EMAC_TX_CTRL_GFCS | EMAC_TX_CTRL_GP )
-
-/* madmal transmit status / Control bits */
+/* EMAC specific TX descriptor status fields (read access) */
 #define EMAC_TX_ST_BFCS			0x0200
-#define EMAC_TX_ST_BPP			0x0100
 #define EMAC_TX_ST_LCS			0x0080
 #define EMAC_TX_ST_ED			0x0040
 #define EMAC_TX_ST_EC			0x0020
@@ -202,8 +280,16 @@ typedef struct emac_regs {
 #define EMAC_TX_ST_SC			0x0004
 #define EMAC_TX_ST_UR			0x0002
 #define EMAC_TX_ST_SQE			0x0001
+#if !defined(CONFIG_IBM_EMAC_TAH)
+#define EMAC_IS_BAD_TX(v)		((v) & (EMAC_TX_ST_LCS | EMAC_TX_ST_ED | \
+					 EMAC_TX_ST_EC | EMAC_TX_ST_LC | \
+					 EMAC_TX_ST_MC | EMAC_TX_ST_UR))
+#else
+#define EMAC_IS_BAD_TX(v)		((v) & (EMAC_TX_ST_LCS | EMAC_TX_ST_ED | \
+					 EMAC_TX_ST_EC | EMAC_TX_ST_LC))
+#endif					 
 
-/* madmal receive status / Control bits */
+/* EMAC specific RX descriptor status fields (read access) */
 #define EMAC_RX_ST_OE			0x0200
 #define EMAC_RX_ST_PP			0x0100
 #define EMAC_RX_ST_BP			0x0080
@@ -214,54 +300,10 @@ typedef struct emac_regs {
 #define EMAC_RX_ST_PTL			0x0004
 #define EMAC_RX_ST_ORE			0x0002
 #define EMAC_RX_ST_IRE			0x0001
-#define EMAC_BAD_RX_PACKET		0x02ff
-#define EMAC_CSUM_VER_ERROR		0x0003
-
-/* identify a bad rx packet dependent on emac features */
-#ifdef CONFIG_IBM_EMAC4
-#define EMAC_IS_BAD_RX_PACKET(desc) \
-	(((desc & (EMAC_BAD_RX_PACKET & ~EMAC_CSUM_VER_ERROR)) || \
-	((desc & EMAC_CSUM_VER_ERROR) == EMAC_RX_ST_ORE) || \
-	((desc & EMAC_CSUM_VER_ERROR) == EMAC_RX_ST_IRE)))
-#else
-#define EMAC_IS_BAD_RX_PACKET(desc) \
-	 (desc & EMAC_BAD_RX_PACKET)
-#endif
-
-/* SoC implementation specific EMAC register defaults */
-#if defined(CONFIG_440GP)
-#define EMAC_RWMR_DEFAULT		0x80009000
-#define EMAC_TMR0_DEFAULT		0x00000000
-#define EMAC_TMR1_DEFAULT		0xf8640000
-#elif defined(CONFIG_440GX)
-#define EMAC_RWMR_DEFAULT		0x1000a200
-#define EMAC_TMR0_DEFAULT		EMAC_TMR0_TFAE_2_32
-#define EMAC_TMR1_DEFAULT		0xa00f0000
-#elif defined(CONFIG_440SP)
-#define EMAC_RWMR_DEFAULT		0x08002000
-#define EMAC_TMR0_DEFAULT		EMAC_TMR0_TFAE_128_2048
-#define EMAC_TMR1_DEFAULT		0xf8200000
-#else
-#define EMAC_RWMR_DEFAULT		0x0f002000
-#define EMAC_TMR0_DEFAULT		0x00000000
-#define EMAC_TMR1_DEFAULT		0x380f0000
-#endif				/* CONFIG_440GP */
-
-/* Revision specific EMAC register defaults */
-#ifdef CONFIG_IBM_EMAC4
-#define EMAC_M1_DEFAULT			(EMAC_M1_BASE | \
-					EMAC_M1_OPB_CLK_83 | \
-					EMAC_M1_TX_MWSW)
-#define EMAC_RMR_DEFAULT		(EMAC_RMR_BASE | \
-					EMAC_RMR_RFAF_128_2048)
-#define EMAC_TMR0_XMIT			(EMAC_TMR0_GNP0 | \
-					EMAC_TMR0_DEFAULT)
-#define EMAC_TRTR_DEFAULT		EMAC_TRTR_1024
-#else				/* !CONFIG_IBM_EMAC4 */
-#define EMAC_M1_DEFAULT			EMAC_M1_BASE
-#define EMAC_RMR_DEFAULT		EMAC_RMR_BASE
-#define EMAC_TMR0_XMIT			EMAC_TMR0_GNP0
-#define EMAC_TRTR_DEFAULT		EMAC_TRTR_1600
-#endif				/* CONFIG_IBM_EMAC4 */
-
-#endif
+#define EMAC_RX_TAH_BAD_CSUM		0x0003
+#define EMAC_BAD_RX_MASK		(EMAC_RX_ST_OE | EMAC_RX_ST_BP | \
+					 EMAC_RX_ST_RP | EMAC_RX_ST_SE | \
+					 EMAC_RX_ST_AE | EMAC_RX_ST_BFCS | \
+					 EMAC_RX_ST_PTL | EMAC_RX_ST_ORE | \
+					 EMAC_RX_ST_IRE )
+#endif /* __IBM_EMAC_H_ */
diff --git a/drivers/net/ibm_emac/ibm_emac_core.c b/drivers/net/ibm_emac/ibm_emac_core.c
index 14e9b6315f20..943fbd1546ff 100644
--- a/drivers/net/ibm_emac/ibm_emac_core.c
+++ b/drivers/net/ibm_emac/ibm_emac_core.c
@@ -1,13 +1,14 @@
 /*
- * ibm_emac_core.c
+ * drivers/net/ibm_emac/ibm_emac_core.c
  *
- * Ethernet driver for the built in ethernet on the IBM 4xx PowerPC
- * processors.
- * 
- * (c) 2003 Benjamin Herrenschmidt <benh@kernel.crashing.org>
+ * Driver for PowerPC 4xx on-chip ethernet controller.
  *
- * Based on original work by
+ * Copyright (c) 2004, 2005 Zultys Technologies.
+ * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
  *
+ * Based on original work by
+ * 	Matt Porter <mporter@kernel.crashing.org>
+ *	(c) 2003 Benjamin Herrenschmidt <benh@kernel.crashing.org>
  *      Armin Kuster <akuster@mvista.com>
  * 	Johnnie Peters <jpeters@mvista.com>
  *
@@ -15,29 +16,24 @@
  * under  the terms of  the GNU General  Public License as published by the
  * Free Software Foundation;  either version 2 of the  License, or (at your
  * option) any later version.
- * TODO
- *       - Check for races in the "remove" code path
- *       - Add some Power Management to the MAC and the PHY
- *       - Audit remaining of non-rewritten code (--BenH)
- *       - Cleanup message display using msglevel mecanism
- *       - Address all errata
- *       - Audit all register update paths to ensure they
- *         are being written post soft reset if required.
+ *
  */
+
+#include <linux/config.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/sched.h>
 #include <linux/string.h>
-#include <linux/timer.h>
-#include <linux/ptrace.h>
 #include <linux/errno.h>
-#include <linux/ioport.h>
-#include <linux/slab.h>
 #include <linux/interrupt.h>
 #include <linux/delay.h>
 #include <linux/init.h>
 #include <linux/types.h>
-#include <linux/dma-mapping.h>
+#include <linux/pci.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/crc32.h>
 #include <linux/ethtool.h>
 #include <linux/mii.h>
 #include <linux/bitops.h>
@@ -45,1691 +41,1893 @@
 #include <asm/processor.h>
 #include <asm/io.h>
 #include <asm/dma.h>
-#include <asm/irq.h>
 #include <asm/uaccess.h>
 #include <asm/ocp.h>
 
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/skbuff.h>
-#include <linux/crc32.h>
-
 #include "ibm_emac_core.h"
-
-//#define MDIO_DEBUG(fmt) printk fmt
-#define MDIO_DEBUG(fmt)
-
-//#define LINK_DEBUG(fmt) printk fmt
-#define LINK_DEBUG(fmt)
-
-//#define PKT_DEBUG(fmt) printk fmt
-#define PKT_DEBUG(fmt)
-
-#define DRV_NAME        "emac"
-#define DRV_VERSION     "2.0"
-#define DRV_AUTHOR      "Benjamin Herrenschmidt <benh@kernel.crashing.org>"
-#define DRV_DESC        "IBM EMAC Ethernet driver"
+#include "ibm_emac_debug.h"
 
 /*
- * When mdio_idx >= 0, contains a list of emac ocp_devs
- * that have had their initialization deferred until the
- * common MDIO controller has been initialized.
+ * Lack of dma_unmap_???? calls is intentional.
+ *
+ * API-correct usage requires additional support state information to be 
+ * maintained for every RX and TX buffer descriptor (BD). Unfortunately, due to
+ * EMAC design (e.g. TX buffer passed from network stack can be split into
+ * several BDs, dma_map_single/dma_map_page can be used to map particular BD),
+ * maintaining such information will add additional overhead.
+ * Current DMA API implementation for 4xx processors only ensures cache coherency
+ * and dma_unmap_???? routines are empty and are likely to stay this way.
+ * I decided to omit dma_unmap_??? calls because I don't want to add additional
+ * complexity just for the sake of following some abstract API, when it doesn't
+ * add any real benefit to the driver. I understand that this decision maybe 
+ * controversial, but I really tried to make code API-correct and efficient 
+ * at the same time and didn't come up with code I liked :(.                --ebs
  */
-LIST_HEAD(emac_init_list);
 
-MODULE_AUTHOR(DRV_AUTHOR);
+#define DRV_NAME        "emac"
+#define DRV_VERSION     "3.53"
+#define DRV_DESC        "PPC 4xx OCP EMAC driver"
+
 MODULE_DESCRIPTION(DRV_DESC);
+MODULE_AUTHOR
+    ("Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>");
 MODULE_LICENSE("GPL");
 
-static int skb_res = SKB_RES;
-module_param(skb_res, int, 0444);
-MODULE_PARM_DESC(skb_res, "Amount of data to reserve on skb buffs\n"
-		 "The 405 handles a misaligned IP header fine but\n"
-		 "this can help if you are routing to a tunnel or a\n"
-		 "device that needs aligned data. 0..2");
+/* minimum number of free TX descriptors required to wake up TX process */
+#define EMAC_TX_WAKEUP_THRESH		(NUM_TX_BUFF / 4)
 
-#define RGMII_PRIV(ocpdev) ((struct ibm_ocp_rgmii*)ocp_get_drvdata(ocpdev))
-
-static unsigned int rgmii_enable[] = {
-	RGMII_RTBI,
-	RGMII_RGMII,
-	RGMII_TBI,
-	RGMII_GMII
-};
+/* If packet size is less than this number, we allocate small skb and copy packet 
+ * contents into it instead of just sending original big skb up
+ */
+#define EMAC_RX_COPY_THRESH		CONFIG_IBM_EMAC_RX_COPY_THRESHOLD
 
-static unsigned int rgmii_speed_mask[] = {
-	RGMII_MII2_SPDMASK,
-	RGMII_MII3_SPDMASK
-};
+/* Since multiple EMACs share MDIO lines in various ways, we need
+ * to avoid re-using the same PHY ID in cases where the arch didn't
+ * setup precise phy_map entries
+ */
+static u32 busy_phy_map;
 
-static unsigned int rgmii_speed100[] = {
-	RGMII_MII2_100MB,
-	RGMII_MII3_100MB
-};
+#if defined(CONFIG_IBM_EMAC_PHY_RX_CLK_FIX) && (defined(CONFIG_405EP) || defined(CONFIG_440EP))
+/* 405EP has "EMAC to PHY Control Register" (CPC0_EPCTL) which can help us
+ * with PHY RX clock problem.
+ * 440EP has more sane SDR0_MFR register implementation than 440GX, which
+ * also allows controlling each EMAC clock
+ */
+static inline void EMAC_RX_CLK_TX(int idx)
+{
+	unsigned long flags;
+	local_irq_save(flags);
 
-static unsigned int rgmii_speed1000[] = {
-	RGMII_MII2_1000MB,
-	RGMII_MII3_1000MB
-};
+#if defined(CONFIG_405EP)
+	mtdcr(0xf3, mfdcr(0xf3) | (1 << idx));
+#else /* CONFIG_440EP */
+	SDR_WRITE(DCRN_SDR_MFR, SDR_READ(DCRN_SDR_MFR) | (0x08000000 >> idx));
+#endif
 
-#define ZMII_PRIV(ocpdev) ((struct ibm_ocp_zmii*)ocp_get_drvdata(ocpdev))
+	local_irq_restore(flags);
+}
 
-static unsigned int zmii_enable[][4] = {
-	{ZMII_SMII0, ZMII_RMII0, ZMII_MII0,
-	 ~(ZMII_MDI1 | ZMII_MDI2 | ZMII_MDI3)},
-	{ZMII_SMII1, ZMII_RMII1, ZMII_MII1,
-	 ~(ZMII_MDI0 | ZMII_MDI2 | ZMII_MDI3)},
-	{ZMII_SMII2, ZMII_RMII2, ZMII_MII2,
-	 ~(ZMII_MDI0 | ZMII_MDI1 | ZMII_MDI3)},
-	{ZMII_SMII3, ZMII_RMII3, ZMII_MII3, ~(ZMII_MDI0 | ZMII_MDI1 | ZMII_MDI2)}
-};
+static inline void EMAC_RX_CLK_DEFAULT(int idx)
+{
+	unsigned long flags;
+	local_irq_save(flags);
 
-static unsigned int mdi_enable[] = {
-	ZMII_MDI0,
-	ZMII_MDI1,
-	ZMII_MDI2,
-	ZMII_MDI3
-};
+#if defined(CONFIG_405EP)
+	mtdcr(0xf3, mfdcr(0xf3) & ~(1 << idx));
+#else /* CONFIG_440EP */
+	SDR_WRITE(DCRN_SDR_MFR, SDR_READ(DCRN_SDR_MFR) & ~(0x08000000 >> idx));
+#endif
 
-static unsigned int zmii_speed = 0x0;
-static unsigned int zmii_speed100[] = {
-	ZMII_MII0_100MB,
-	ZMII_MII1_100MB,
-	ZMII_MII2_100MB,
-	ZMII_MII3_100MB
-};
+	local_irq_restore(flags);
+}
+#else
+#define EMAC_RX_CLK_TX(idx)		((void)0)
+#define EMAC_RX_CLK_DEFAULT(idx)	((void)0)
+#endif
 
-/* Since multiple EMACs share MDIO lines in various ways, we need
- * to avoid re-using the same PHY ID in cases where the arch didn't
- * setup precise phy_map entries
+#if defined(CONFIG_IBM_EMAC_PHY_RX_CLK_FIX) && defined(CONFIG_440GX)
+/* We can switch Ethernet clock to the internal source through SDR0_MFR[ECS],
+ * unfortunately this is less flexible than 440EP case, because it's a global 
+ * setting for all EMACs, therefore we do this clock trick only during probe.
  */
-static u32 busy_phy_map = 0;
+#define EMAC_CLK_INTERNAL		SDR_WRITE(DCRN_SDR_MFR, \
+					    SDR_READ(DCRN_SDR_MFR) | 0x08000000)
+#define EMAC_CLK_EXTERNAL		SDR_WRITE(DCRN_SDR_MFR, \
+					    SDR_READ(DCRN_SDR_MFR) & ~0x08000000)
+#else
+#define EMAC_CLK_INTERNAL		((void)0)
+#define EMAC_CLK_EXTERNAL		((void)0)
+#endif
 
-/* If EMACs share a common MDIO device, this points to it */
-static struct net_device *mdio_ndev = NULL;
+/* I don't want to litter system log with timeout errors 
+ * when we have brain-damaged PHY.
+ */
+static inline void emac_report_timeout_error(struct ocp_enet_private *dev,
+					     const char *error)
+{
+#if defined(CONFIG_IBM_EMAC_PHY_RX_CLK_FIX)
+	DBG("%d: %s" NL, dev->def->index, error);
+#else
+	if (net_ratelimit())
+		printk(KERN_ERR "emac%d: %s\n", dev->def->index, error);
+#endif
+}
 
-struct emac_def_dev {
-	struct list_head link;
-	struct ocp_device *ocpdev;
-	struct ibm_ocp_mal *mal;
+/* PHY polling intervals */
+#define PHY_POLL_LINK_ON	HZ
+#define PHY_POLL_LINK_OFF	(HZ / 5)
+
+/* Please, keep in sync with struct ibm_emac_stats/ibm_emac_error_stats */
+static const char emac_stats_keys[EMAC_ETHTOOL_STATS_COUNT][ETH_GSTRING_LEN] = {
+	"rx_packets", "rx_bytes", "tx_packets", "tx_bytes", "rx_packets_csum",
+	"tx_packets_csum", "tx_undo", "rx_dropped_stack", "rx_dropped_oom",
+	"rx_dropped_error", "rx_dropped_resize", "rx_dropped_mtu",
+	"rx_stopped", "rx_bd_errors", "rx_bd_overrun", "rx_bd_bad_packet",
+	"rx_bd_runt_packet", "rx_bd_short_event", "rx_bd_alignment_error",
+	"rx_bd_bad_fcs", "rx_bd_packet_too_long", "rx_bd_out_of_range",
+	"rx_bd_in_range", "rx_parity", "rx_fifo_overrun", "rx_overrun",
+	"rx_bad_packet", "rx_runt_packet", "rx_short_event",
+	"rx_alignment_error", "rx_bad_fcs", "rx_packet_too_long",
+	"rx_out_of_range", "rx_in_range", "tx_dropped", "tx_bd_errors",
+	"tx_bd_bad_fcs", "tx_bd_carrier_loss", "tx_bd_excessive_deferral",
+	"tx_bd_excessive_collisions", "tx_bd_late_collision",
+	"tx_bd_multple_collisions", "tx_bd_single_collision",
+	"tx_bd_underrun", "tx_bd_sqe", "tx_parity", "tx_underrun", "tx_sqe",
+	"tx_errors"
 };
 
-static struct net_device_stats *emac_stats(struct net_device *dev)
+static irqreturn_t emac_irq(int irq, void *dev_instance, struct pt_regs *regs);
+static void emac_clean_tx_ring(struct ocp_enet_private *dev);
+
+static inline int emac_phy_supports_gige(int phy_mode)
 {
-	struct ocp_enet_private *fep = dev->priv;
-	return &fep->stats;
-};
+	return  phy_mode == PHY_MODE_GMII ||
+		phy_mode == PHY_MODE_RGMII ||
+		phy_mode == PHY_MODE_TBI ||
+		phy_mode == PHY_MODE_RTBI;
+}
 
-static int
-emac_init_rgmii(struct ocp_device *rgmii_dev, int input, int phy_mode)
+static inline int emac_phy_gpcs(int phy_mode)
 {
-	struct ibm_ocp_rgmii *rgmii = RGMII_PRIV(rgmii_dev);
-	const char *mode_name[] = { "RTBI", "RGMII", "TBI", "GMII" };
-	int mode = -1;
+	return  phy_mode == PHY_MODE_TBI ||
+		phy_mode == PHY_MODE_RTBI;
+}
 
-	if (!rgmii) {
-		rgmii = kmalloc(sizeof(struct ibm_ocp_rgmii), GFP_KERNEL);
+static inline void emac_tx_enable(struct ocp_enet_private *dev)
+{
+	struct emac_regs *p = dev->emacp;
+	unsigned long flags;
+	u32 r;
 
-		if (rgmii == NULL) {
-			printk(KERN_ERR
-			       "rgmii%d: Out of memory allocating RGMII structure!\n",
-			       rgmii_dev->def->index);
-			return -ENOMEM;
-		}
+	local_irq_save(flags);
 
-		memset(rgmii, 0, sizeof(*rgmii));
+	DBG("%d: tx_enable" NL, dev->def->index);
 
-		rgmii->base =
-		    (struct rgmii_regs *)ioremap(rgmii_dev->def->paddr,
-						 sizeof(*rgmii->base));
-		if (rgmii->base == NULL) {
-			printk(KERN_ERR
-			       "rgmii%d: Cannot ioremap bridge registers!\n",
-			       rgmii_dev->def->index);
+	r = in_be32(&p->mr0);
+	if (!(r & EMAC_MR0_TXE))
+		out_be32(&p->mr0, r | EMAC_MR0_TXE);
+	local_irq_restore(flags);
+}
 
-			kfree(rgmii);
-			return -ENOMEM;
-		}
-		ocp_set_drvdata(rgmii_dev, rgmii);
-	}
+static void emac_tx_disable(struct ocp_enet_private *dev)
+{
+	struct emac_regs *p = dev->emacp;
+	unsigned long flags;
+	u32 r;
 
-	if (phy_mode) {
-		switch (phy_mode) {
-		case PHY_MODE_GMII:
-			mode = GMII;
-			break;
-		case PHY_MODE_TBI:
-			mode = TBI;
-			break;
-		case PHY_MODE_RTBI:
-			mode = RTBI;
-			break;
-		case PHY_MODE_RGMII:
-		default:
-			mode = RGMII;
-		}
-		rgmii->base->fer &= ~RGMII_FER_MASK(input);
-		rgmii->base->fer |= rgmii_enable[mode] << (4 * input);
-	} else {
-		switch ((rgmii->base->fer & RGMII_FER_MASK(input)) >> (4 *
-								       input)) {
-		case RGMII_RTBI:
-			mode = RTBI;
-			break;
-		case RGMII_RGMII:
-			mode = RGMII;
-			break;
-		case RGMII_TBI:
-			mode = TBI;
-			break;
-		case RGMII_GMII:
-			mode = GMII;
-		}
-	}
+	local_irq_save(flags);
 
-	/* Set mode to RGMII if nothing valid is detected */
-	if (mode < 0)
-		mode = RGMII;
+	DBG("%d: tx_disable" NL, dev->def->index);
+
+	r = in_be32(&p->mr0);
+	if (r & EMAC_MR0_TXE) {
+		int n = 300;
+		out_be32(&p->mr0, r & ~EMAC_MR0_TXE);
+		while (!(in_be32(&p->mr0) & EMAC_MR0_TXI) && n)
+			--n;
+		if (unlikely(!n))
+			emac_report_timeout_error(dev, "TX disable timeout");
+	}
+	local_irq_restore(flags);
+}
 
-	printk(KERN_NOTICE "rgmii%d: input %d in %s mode\n",
-	       rgmii_dev->def->index, input, mode_name[mode]);
+static void emac_rx_enable(struct ocp_enet_private *dev)
+{
+	struct emac_regs *p = dev->emacp;
+	unsigned long flags;
+	u32 r;
 
-	rgmii->mode[input] = mode;
-	rgmii->users++;
+	local_irq_save(flags);
+	if (unlikely(dev->commac.rx_stopped))
+		goto out;
 
-	return 0;
+	DBG("%d: rx_enable" NL, dev->def->index);
+
+	r = in_be32(&p->mr0);
+	if (!(r & EMAC_MR0_RXE)) {
+		if (unlikely(!(r & EMAC_MR0_RXI))) {
+			/* Wait if previous async disable is still in progress */
+			int n = 100;
+			while (!(r = in_be32(&p->mr0) & EMAC_MR0_RXI) && n)
+				--n;
+			if (unlikely(!n))
+				emac_report_timeout_error(dev,
+							  "RX disable timeout");
+		}
+		out_be32(&p->mr0, r | EMAC_MR0_RXE);
+	}
+      out:
+	local_irq_restore(flags);
 }
 
-static void
-emac_rgmii_port_speed(struct ocp_device *ocpdev, int input, int speed)
+static void emac_rx_disable(struct ocp_enet_private *dev)
 {
-	struct ibm_ocp_rgmii *rgmii = RGMII_PRIV(ocpdev);
-	unsigned int rgmii_speed;
-
-	rgmii_speed = in_be32(&rgmii->base->ssr);
+	struct emac_regs *p = dev->emacp;
+	unsigned long flags;
+	u32 r;
 
-	rgmii_speed &= ~rgmii_speed_mask[input];
+	local_irq_save(flags);
 
-	if (speed == 1000)
-		rgmii_speed |= rgmii_speed1000[input];
-	else if (speed == 100)
-		rgmii_speed |= rgmii_speed100[input];
+	DBG("%d: rx_disable" NL, dev->def->index);
 
-	out_be32(&rgmii->base->ssr, rgmii_speed);
+	r = in_be32(&p->mr0);
+	if (r & EMAC_MR0_RXE) {
+		int n = 300;
+		out_be32(&p->mr0, r & ~EMAC_MR0_RXE);
+		while (!(in_be32(&p->mr0) & EMAC_MR0_RXI) && n)
+			--n;
+		if (unlikely(!n))
+			emac_report_timeout_error(dev, "RX disable timeout");
+	}
+	local_irq_restore(flags);
 }
 
-static void emac_close_rgmii(struct ocp_device *ocpdev)
+static inline void emac_rx_disable_async(struct ocp_enet_private *dev)
 {
-	struct ibm_ocp_rgmii *rgmii = RGMII_PRIV(ocpdev);
-	BUG_ON(!rgmii || rgmii->users == 0);
+	struct emac_regs *p = dev->emacp;
+	unsigned long flags;
+	u32 r;
 
-	if (!--rgmii->users) {
-		ocp_set_drvdata(ocpdev, NULL);
-		iounmap((void *)rgmii->base);
-		kfree(rgmii);
-	}
+	local_irq_save(flags);
+
+	DBG("%d: rx_disable_async" NL, dev->def->index);
+
+	r = in_be32(&p->mr0);
+	if (r & EMAC_MR0_RXE)
+		out_be32(&p->mr0, r & ~EMAC_MR0_RXE);
+	local_irq_restore(flags);
 }
 
-static int emac_init_zmii(struct ocp_device *zmii_dev, int input, int phy_mode)
+static int emac_reset(struct ocp_enet_private *dev)
 {
-	struct ibm_ocp_zmii *zmii = ZMII_PRIV(zmii_dev);
-	const char *mode_name[] = { "SMII", "RMII", "MII" };
-	int mode = -1;
+	struct emac_regs *p = dev->emacp;
+	unsigned long flags;
+	int n = 20;
 
-	if (!zmii) {
-		zmii = kmalloc(sizeof(struct ibm_ocp_zmii), GFP_KERNEL);
-		if (zmii == NULL) {
-			printk(KERN_ERR
-			       "zmii%d: Out of memory allocating ZMII structure!\n",
-			       zmii_dev->def->index);
-			return -ENOMEM;
-		}
-		memset(zmii, 0, sizeof(*zmii));
+	DBG("%d: reset" NL, dev->def->index);
 
-		zmii->base =
-		    (struct zmii_regs *)ioremap(zmii_dev->def->paddr,
-						sizeof(*zmii->base));
-		if (zmii->base == NULL) {
-			printk(KERN_ERR
-			       "zmii%d: Cannot ioremap bridge registers!\n",
-			       zmii_dev->def->index);
+	local_irq_save(flags);
 
-			kfree(zmii);
-			return -ENOMEM;
-		}
-		ocp_set_drvdata(zmii_dev, zmii);
+	if (!dev->reset_failed) {
+		/* 40x erratum suggests stopping RX channel before reset,
+		 * we stop TX as well
+		 */
+		emac_rx_disable(dev);
+		emac_tx_disable(dev);
 	}
 
-	if (phy_mode) {
-		switch (phy_mode) {
-		case PHY_MODE_MII:
-			mode = MII;
-			break;
-		case PHY_MODE_RMII:
-			mode = RMII;
-			break;
-		case PHY_MODE_SMII:
-		default:
-			mode = SMII;
-		}
-		zmii->base->fer &= ~ZMII_FER_MASK(input);
-		zmii->base->fer |= zmii_enable[input][mode];
+	out_be32(&p->mr0, EMAC_MR0_SRST);
+	while ((in_be32(&p->mr0) & EMAC_MR0_SRST) && n)
+		--n;
+	local_irq_restore(flags);
+
+	if (n) {
+		dev->reset_failed = 0;
+		return 0;
 	} else {
-		switch ((zmii->base->fer & ZMII_FER_MASK(input)) << (4 * input)) {
-		case ZMII_MII0:
-			mode = MII;
-			break;
-		case ZMII_RMII0:
-			mode = RMII;
-			break;
-		case ZMII_SMII0:
-			mode = SMII;
-		}
+		emac_report_timeout_error(dev, "reset timeout");
+		dev->reset_failed = 1;
+		return -ETIMEDOUT;
 	}
+}
 
-	/* Set mode to SMII if nothing valid is detected */
-	if (mode < 0)
-		mode = SMII;
+static void emac_hash_mc(struct ocp_enet_private *dev)
+{
+	struct emac_regs *p = dev->emacp;
+	u16 gaht[4] = { 0 };
+	struct dev_mc_list *dmi;
 
-	printk(KERN_NOTICE "zmii%d: input %d in %s mode\n",
-	       zmii_dev->def->index, input, mode_name[mode]);
+	DBG("%d: hash_mc %d" NL, dev->def->index, dev->ndev->mc_count);
 
-	zmii->mode[input] = mode;
-	zmii->users++;
+	for (dmi = dev->ndev->mc_list; dmi; dmi = dmi->next) {
+		int bit;
+		DBG2("%d: mc %02x:%02x:%02x:%02x:%02x:%02x" NL,
+		     dev->def->index,
+		     dmi->dmi_addr[0], dmi->dmi_addr[1], dmi->dmi_addr[2],
+		     dmi->dmi_addr[3], dmi->dmi_addr[4], dmi->dmi_addr[5]);
 
-	return 0;
+		bit = 63 - (ether_crc(ETH_ALEN, dmi->dmi_addr) >> 26);
+		gaht[bit >> 4] |= 0x8000 >> (bit & 0x0f);
+	}
+	out_be32(&p->gaht1, gaht[0]);
+	out_be32(&p->gaht2, gaht[1]);
+	out_be32(&p->gaht3, gaht[2]);
+	out_be32(&p->gaht4, gaht[3]);
 }
 
-static void emac_enable_zmii_port(struct ocp_device *ocpdev, int input)
+static inline u32 emac_iff2rmr(struct net_device *ndev)
 {
-	u32 mask;
-	struct ibm_ocp_zmii *zmii = ZMII_PRIV(ocpdev);
+	u32 r = EMAC_RMR_SP | EMAC_RMR_SFCS | EMAC_RMR_IAE | EMAC_RMR_BAE |
+	    EMAC_RMR_BASE;
+
+	if (ndev->flags & IFF_PROMISC)
+		r |= EMAC_RMR_PME;
+	else if (ndev->flags & IFF_ALLMULTI || ndev->mc_count > 32)
+		r |= EMAC_RMR_PMME;
+	else if (ndev->mc_count > 0)
+		r |= EMAC_RMR_MAE;
 
-	mask = in_be32(&zmii->base->fer);
-	mask &= zmii_enable[input][MDI];	/* turn all non enabled MDI's off */
-	mask |= zmii_enable[input][zmii->mode[input]] | mdi_enable[input];
-	out_be32(&zmii->base->fer, mask);
+	return r;
 }
 
-static void
-emac_zmii_port_speed(struct ocp_device *ocpdev, int input, int speed)
+static inline int emac_opb_mhz(void)
 {
-	struct ibm_ocp_zmii *zmii = ZMII_PRIV(ocpdev);
-
-	if (speed == 100)
-		zmii_speed |= zmii_speed100[input];
-	else
-		zmii_speed &= ~zmii_speed100[input];
-
-	out_be32(&zmii->base->ssr, zmii_speed);
+	return (ocp_sys_info.opb_bus_freq + 500000) / 1000000;
 }
 
-static void emac_close_zmii(struct ocp_device *ocpdev)
+/* BHs disabled */
+static int emac_configure(struct ocp_enet_private *dev)
 {
-	struct ibm_ocp_zmii *zmii = ZMII_PRIV(ocpdev);
-	BUG_ON(!zmii || zmii->users == 0);
+	struct emac_regs *p = dev->emacp;
+	struct net_device *ndev = dev->ndev;
+	int gige;
+	u32 r;
 
-	if (!--zmii->users) {
-		ocp_set_drvdata(ocpdev, NULL);
-		iounmap((void *)zmii->base);
-		kfree(zmii);
-	}
-}
+	DBG("%d: configure" NL, dev->def->index);
 
-int emac_phy_read(struct net_device *dev, int mii_id, int reg)
-{
-	int count;
-	uint32_t stacr;
-	struct ocp_enet_private *fep = dev->priv;
-	emac_t *emacp = fep->emacp;
+	if (emac_reset(dev) < 0)
+		return -ETIMEDOUT;
 
-	MDIO_DEBUG(("%s: phy_read, id: 0x%x, reg: 0x%x\n", dev->name, mii_id,
-		    reg));
+	tah_reset(dev->tah_dev);
 
-	/* Enable proper ZMII port */
-	if (fep->zmii_dev)
-		emac_enable_zmii_port(fep->zmii_dev, fep->zmii_input);
+	/* Mode register */
+	r = EMAC_MR1_BASE(emac_opb_mhz()) | EMAC_MR1_VLE | EMAC_MR1_IST;
+	if (dev->phy.duplex == DUPLEX_FULL)
+		r |= EMAC_MR1_FDE;
+	switch (dev->phy.speed) {
+	case SPEED_1000:
+		if (emac_phy_gpcs(dev->phy.mode)) {
+			r |= EMAC_MR1_MF_1000GPCS |
+			    EMAC_MR1_MF_IPPA(dev->phy.address);
 
-	/* Use the EMAC that has the MDIO port */
-	if (fep->mdio_dev) {
-		dev = fep->mdio_dev;
-		fep = dev->priv;
-		emacp = fep->emacp;
+			/* Put some arbitrary OUI, Manuf & Rev IDs so we can
+			 * identify this GPCS PHY later.
+			 */
+			out_be32(&p->ipcr, 0xdeadbeef);
+		} else
+			r |= EMAC_MR1_MF_1000;
+		r |= EMAC_MR1_RFS_16K;
+		gige = 1;
+		
+		if (dev->ndev->mtu > ETH_DATA_LEN)
+			r |= EMAC_MR1_JPSM;
+		break;
+	case SPEED_100:
+		r |= EMAC_MR1_MF_100;
+		/* Fall through */
+	default:
+		r |= EMAC_MR1_RFS_4K;
+		gige = 0;
+		break;
 	}
 
-	count = 0;
-	while ((((stacr = in_be32(&emacp->em0stacr)) & EMAC_STACR_OC) == 0)
-					&& (count++ < MDIO_DELAY))
-		udelay(1);
-	MDIO_DEBUG((" (count was %d)\n", count));
+	if (dev->rgmii_dev)
+		rgmii_set_speed(dev->rgmii_dev, dev->rgmii_input,
+				dev->phy.speed);
+	else
+		zmii_set_speed(dev->zmii_dev, dev->zmii_input, dev->phy.speed);
 
-	if ((stacr & EMAC_STACR_OC) == 0) {
-		printk(KERN_WARNING "%s: PHY read timeout #1!\n", dev->name);
-		return -1;
+#if !defined(CONFIG_40x)
+	/* on 40x erratum forces us to NOT use integrated flow control, 
+	 * let's hope it works on 44x ;)
+	 */
+	if (dev->phy.duplex == DUPLEX_FULL) {
+		if (dev->phy.pause)
+			r |= EMAC_MR1_EIFC | EMAC_MR1_APP;
+		else if (dev->phy.asym_pause)
+			r |= EMAC_MR1_APP;
 	}
+#endif
+	out_be32(&p->mr1, r);
+
+	/* Set individual MAC address */
+	out_be32(&p->iahr, (ndev->dev_addr[0] << 8) | ndev->dev_addr[1]);
+	out_be32(&p->ialr, (ndev->dev_addr[2] << 24) |
+		 (ndev->dev_addr[3] << 16) | (ndev->dev_addr[4] << 8) |
+		 ndev->dev_addr[5]);
+
+	/* VLAN Tag Protocol ID */
+	out_be32(&p->vtpid, 0x8100);
+
+	/* Receive mode register */
+	r = emac_iff2rmr(ndev);
+	if (r & EMAC_RMR_MAE)
+		emac_hash_mc(dev);
+	out_be32(&p->rmr, r);
+
+	/* FIFOs thresholds */
+	r = EMAC_TMR1((EMAC_MAL_BURST_SIZE / EMAC_FIFO_ENTRY_SIZE) + 1,
+		      EMAC_TX_FIFO_SIZE / 2 / EMAC_FIFO_ENTRY_SIZE);
+	out_be32(&p->tmr1, r);
+	out_be32(&p->trtr, EMAC_TRTR(EMAC_TX_FIFO_SIZE / 2));
+
+	/* PAUSE frame is sent when RX FIFO reaches its high-water mark,
+	   there should be still enough space in FIFO to allow the our link
+	   partner time to process this frame and also time to send PAUSE 
+	   frame itself.
+
+	   Here is the worst case scenario for the RX FIFO "headroom"
+	   (from "The Switch Book") (100Mbps, without preamble, inter-frame gap):
+
+	   1) One maximum-length frame on TX                    1522 bytes
+	   2) One PAUSE frame time                                64 bytes
+	   3) PAUSE frame decode time allowance                   64 bytes
+	   4) One maximum-length frame on RX                    1522 bytes
+	   5) Round-trip propagation delay of the link (100Mb)    15 bytes
+	   ----------       
+	   3187 bytes
+
+	   I chose to set high-water mark to RX_FIFO_SIZE / 4 (1024 bytes)
+	   low-water mark  to RX_FIFO_SIZE / 8 (512 bytes)
+	 */
+	r = EMAC_RWMR(EMAC_RX_FIFO_SIZE(gige) / 8 / EMAC_FIFO_ENTRY_SIZE,
+		      EMAC_RX_FIFO_SIZE(gige) / 4 / EMAC_FIFO_ENTRY_SIZE);
+	out_be32(&p->rwmr, r);
+
+	/* Set PAUSE timer to the maximum */
+	out_be32(&p->ptr, 0xffff);
+
+	/* IRQ sources */
+	out_be32(&p->iser, EMAC_ISR_TXPE | EMAC_ISR_RXPE | /* EMAC_ISR_TXUE |
+		 EMAC_ISR_RXOE | */ EMAC_ISR_OVR | EMAC_ISR_BP | EMAC_ISR_SE |
+		 EMAC_ISR_ALE | EMAC_ISR_BFCS | EMAC_ISR_PTLE | EMAC_ISR_ORE |
+		 EMAC_ISR_IRE | EMAC_ISR_TE);
+		 
+	/* We need to take GPCS PHY out of isolate mode after EMAC reset */
+	if (emac_phy_gpcs(dev->phy.mode)) 
+		mii_reset_phy(&dev->phy);
+		 
+	return 0;
+}
 
-	/* Clear the speed bits and make a read request to the PHY */
-	stacr = ((EMAC_STACR_READ | (reg & 0x1f)) & ~EMAC_STACR_CLK_100MHZ);
-	stacr |= ((mii_id & 0x1F) << 5);
+/* BHs disabled */
+static void emac_reinitialize(struct ocp_enet_private *dev)
+{
+	DBG("%d: reinitialize" NL, dev->def->index);
 
-	out_be32(&emacp->em0stacr, stacr);
+	if (!emac_configure(dev)) {
+		emac_tx_enable(dev);
+		emac_rx_enable(dev);
+	}
+}
 
-	count = 0;
-	while ((((stacr = in_be32(&emacp->em0stacr)) & EMAC_STACR_OC) == 0)
-					&& (count++ < MDIO_DELAY))
-		udelay(1);
-	MDIO_DEBUG((" (count was %d)\n", count));
+/* BHs disabled */
+static void emac_full_tx_reset(struct net_device *ndev)
+{
+	struct ocp_enet_private *dev = ndev->priv;
+	struct ocp_func_emac_data *emacdata = dev->def->additions;
 
-	if ((stacr & EMAC_STACR_OC) == 0) {
-		printk(KERN_WARNING "%s: PHY read timeout #2!\n", dev->name);
-		return -1;
-	}
+	DBG("%d: full_tx_reset" NL, dev->def->index);
 
-	/* Check for a read error */
-	if (stacr & EMAC_STACR_PHYE) {
-		MDIO_DEBUG(("EMAC MDIO PHY error !\n"));
-		return -1;
-	}
+	emac_tx_disable(dev);
+	mal_disable_tx_channel(dev->mal, emacdata->mal_tx_chan);
+	emac_clean_tx_ring(dev);
+	dev->tx_cnt = dev->tx_slot = dev->ack_slot = 0;
+
+	emac_configure(dev);
 
-	MDIO_DEBUG((" -> 0x%x\n", stacr >> 16));
+	mal_enable_tx_channel(dev->mal, emacdata->mal_tx_chan);
+	emac_tx_enable(dev);
+	emac_rx_enable(dev);
 
-	return (stacr >> 16);
+	netif_wake_queue(ndev);
 }
 
-void emac_phy_write(struct net_device *dev, int mii_id, int reg, int data)
+static int __emac_mdio_read(struct ocp_enet_private *dev, u8 id, u8 reg)
 {
-	int count;
-	uint32_t stacr;
-	struct ocp_enet_private *fep = dev->priv;
-	emac_t *emacp = fep->emacp;
+	struct emac_regs *p = dev->emacp;
+	u32 r;
+	int n;
 
-	MDIO_DEBUG(("%s phy_write, id: 0x%x, reg: 0x%x, data: 0x%x\n",
-		    dev->name, mii_id, reg, data));
+	DBG2("%d: mdio_read(%02x,%02x)" NL, dev->def->index, id, reg);
 
-	/* Enable proper ZMII port */
-	if (fep->zmii_dev)
-		emac_enable_zmii_port(fep->zmii_dev, fep->zmii_input);
+	/* Enable proper MDIO port */
+	zmii_enable_mdio(dev->zmii_dev, dev->zmii_input);
 
-	/* Use the EMAC that has the MDIO port */
-	if (fep->mdio_dev) {
-		dev = fep->mdio_dev;
-		fep = dev->priv;
-		emacp = fep->emacp;
+	/* Wait for management interface to become idle */
+	n = 10;
+	while (!(in_be32(&p->stacr) & EMAC_STACR_OC)) {
+		udelay(1);
+		if (!--n)
+			goto to;
 	}
 
-	count = 0;
-	while ((((stacr = in_be32(&emacp->em0stacr)) & EMAC_STACR_OC) == 0)
-					&& (count++ < MDIO_DELAY))
+	/* Issue read command */
+	out_be32(&p->stacr,
+		 EMAC_STACR_BASE(emac_opb_mhz()) | EMAC_STACR_STAC_READ |
+		 (reg & EMAC_STACR_PRA_MASK)
+		 | ((id & EMAC_STACR_PCDA_MASK) << EMAC_STACR_PCDA_SHIFT));
+
+	/* Wait for read to complete */
+	n = 100;
+	while (!((r = in_be32(&p->stacr)) & EMAC_STACR_OC)) {
 		udelay(1);
-	MDIO_DEBUG((" (count was %d)\n", count));
+		if (!--n)
+			goto to;
+	}
 
-	if ((stacr & EMAC_STACR_OC) == 0) {
-		printk(KERN_WARNING "%s: PHY write timeout #2!\n", dev->name);
-		return;
+	if (unlikely(r & EMAC_STACR_PHYE)) {
+		DBG("%d: mdio_read(%02x, %02x) failed" NL, dev->def->index,
+		    id, reg);
+		return -EREMOTEIO;
 	}
 
-	/* Clear the speed bits and make a read request to the PHY */
+	r = ((r >> EMAC_STACR_PHYD_SHIFT) & EMAC_STACR_PHYD_MASK);
+	DBG2("%d: mdio_read -> %04x" NL, dev->def->index, r);
+	return r;
+      to:
+	DBG("%d: MII management interface timeout (read)" NL, dev->def->index);
+	return -ETIMEDOUT;
+}
+
+static void __emac_mdio_write(struct ocp_enet_private *dev, u8 id, u8 reg,
+			      u16 val)
+{
+	struct emac_regs *p = dev->emacp;
+	int n;
 
-	stacr = ((EMAC_STACR_WRITE | (reg & 0x1f)) & ~EMAC_STACR_CLK_100MHZ);
-	stacr |= ((mii_id & 0x1f) << 5) | ((data & 0xffff) << 16);
+	DBG2("%d: mdio_write(%02x,%02x,%04x)" NL, dev->def->index, id, reg,
+	     val);
 
-	out_be32(&emacp->em0stacr, stacr);
+	/* Enable proper MDIO port */
+	zmii_enable_mdio(dev->zmii_dev, dev->zmii_input);
 
-	count = 0;
-	while ((((stacr = in_be32(&emacp->em0stacr)) & EMAC_STACR_OC) == 0)
-					&& (count++ < MDIO_DELAY))
+	/* Wait for management interface to be idle */
+	n = 10;
+	while (!(in_be32(&p->stacr) & EMAC_STACR_OC)) {
 		udelay(1);
-	MDIO_DEBUG((" (count was %d)\n", count));
+		if (!--n)
+			goto to;
+	}
 
-	if ((stacr & EMAC_STACR_OC) == 0)
-		printk(KERN_WARNING "%s: PHY write timeout #2!\n", dev->name);
+	/* Issue write command */
+	out_be32(&p->stacr,
+		 EMAC_STACR_BASE(emac_opb_mhz()) | EMAC_STACR_STAC_WRITE |
+		 (reg & EMAC_STACR_PRA_MASK) |
+		 ((id & EMAC_STACR_PCDA_MASK) << EMAC_STACR_PCDA_SHIFT) |
+		 (val << EMAC_STACR_PHYD_SHIFT));
 
-	/* Check for a write error */
-	if ((stacr & EMAC_STACR_PHYE) != 0) {
-		MDIO_DEBUG(("EMAC MDIO PHY error !\n"));
+	/* Wait for write to complete */
+	n = 100;
+	while (!(in_be32(&p->stacr) & EMAC_STACR_OC)) {
+		udelay(1);
+		if (!--n)
+			goto to;
 	}
+	return;
+      to:
+	DBG("%d: MII management interface timeout (write)" NL, dev->def->index);
 }
 
-static void emac_txeob_dev(void *param, u32 chanmask)
+static int emac_mdio_read(struct net_device *ndev, int id, int reg)
 {
-	struct net_device *dev = param;
-	struct ocp_enet_private *fep = dev->priv;
-	unsigned long flags;
-
-	spin_lock_irqsave(&fep->lock, flags);
-
-	PKT_DEBUG(("emac_txeob_dev() entry, tx_cnt: %d\n", fep->tx_cnt));
-
-	while (fep->tx_cnt &&
-	       !(fep->tx_desc[fep->ack_slot].ctrl & MAL_TX_CTRL_READY)) {
+	struct ocp_enet_private *dev = ndev->priv;
+	int res;
+
+	local_bh_disable();
+	res = __emac_mdio_read(dev->mdio_dev ? dev->mdio_dev : dev, (u8) id,
+			       (u8) reg);
+	local_bh_enable();
+	return res;
+}
 
-		if (fep->tx_desc[fep->ack_slot].ctrl & MAL_TX_CTRL_LAST) {
-			/* Tell the system the transmit completed. */
-			dma_unmap_single(&fep->ocpdev->dev,
-					 fep->tx_desc[fep->ack_slot].data_ptr,
-					 fep->tx_desc[fep->ack_slot].data_len,
-					 DMA_TO_DEVICE);
-			dev_kfree_skb_irq(fep->tx_skb[fep->ack_slot]);
+static void emac_mdio_write(struct net_device *ndev, int id, int reg, int val)
+{
+	struct ocp_enet_private *dev = ndev->priv;
 
-			if (fep->tx_desc[fep->ack_slot].ctrl &
-			    (EMAC_TX_ST_EC | EMAC_TX_ST_MC | EMAC_TX_ST_SC))
-				fep->stats.collisions++;
-		}
+	local_bh_disable();
+	__emac_mdio_write(dev->mdio_dev ? dev->mdio_dev : dev, (u8) id,
+			  (u8) reg, (u16) val);
+	local_bh_enable();
+}
 
-		fep->tx_skb[fep->ack_slot] = (struct sk_buff *)NULL;
-		if (++fep->ack_slot == NUM_TX_BUFF)
-			fep->ack_slot = 0;
+/* BHs disabled */
+static void emac_set_multicast_list(struct net_device *ndev)
+{
+	struct ocp_enet_private *dev = ndev->priv;
+	struct emac_regs *p = dev->emacp;
+	u32 rmr = emac_iff2rmr(ndev);
+
+	DBG("%d: multicast %08x" NL, dev->def->index, rmr);
+	BUG_ON(!netif_running(dev->ndev));
+
+	/* I decided to relax register access rules here to avoid
+	 * full EMAC reset.
+	 *
+	 * There is a real problem with EMAC4 core if we use MWSW_001 bit 
+	 * in MR1 register and do a full EMAC reset.
+	 * One TX BD status update is delayed and, after EMAC reset, it 
+	 * never happens, resulting in TX hung (it'll be recovered by TX 
+	 * timeout handler eventually, but this is just gross).
+	 * So we either have to do full TX reset or try to cheat here :)
+	 *
+	 * The only required change is to RX mode register, so I *think* all
+	 * we need is just to stop RX channel. This seems to work on all
+	 * tested SoCs.                                                --ebs
+	 */
+	emac_rx_disable(dev);
+	if (rmr & EMAC_RMR_MAE)
+		emac_hash_mc(dev);
+	out_be32(&p->rmr, rmr);
+	emac_rx_enable(dev);
+}
 
-		fep->tx_cnt--;
+/* BHs disabled */
+static int emac_resize_rx_ring(struct ocp_enet_private *dev, int new_mtu)
+{
+	struct ocp_func_emac_data *emacdata = dev->def->additions;
+	int rx_sync_size = emac_rx_sync_size(new_mtu);
+	int rx_skb_size = emac_rx_skb_size(new_mtu);
+	int i, ret = 0;
+
+	emac_rx_disable(dev);
+	mal_disable_rx_channel(dev->mal, emacdata->mal_rx_chan);
+
+	if (dev->rx_sg_skb) {
+		++dev->estats.rx_dropped_resize;
+		dev_kfree_skb(dev->rx_sg_skb);
+		dev->rx_sg_skb = NULL;
 	}
-	if (fep->tx_cnt < NUM_TX_BUFF)
-		netif_wake_queue(dev);
 
-	PKT_DEBUG(("emac_txeob_dev() exit, tx_cnt: %d\n", fep->tx_cnt));
+	/* Make a first pass over RX ring and mark BDs ready, dropping 
+	 * non-processed packets on the way. We need this as a separate pass
+	 * to simplify error recovery in the case of allocation failure later.
+	 */
+	for (i = 0; i < NUM_RX_BUFF; ++i) {
+		if (dev->rx_desc[i].ctrl & MAL_RX_CTRL_FIRST)
+			++dev->estats.rx_dropped_resize;
 
-	spin_unlock_irqrestore(&fep->lock, flags);
-}
+		dev->rx_desc[i].data_len = 0;
+		dev->rx_desc[i].ctrl = MAL_RX_CTRL_EMPTY |
+		    (i == (NUM_RX_BUFF - 1) ? MAL_RX_CTRL_WRAP : 0);
+	}
 
-/*
-  Fill/Re-fill the rx chain with valid ctrl/ptrs.
-  This function will fill from rx_slot up to the parm end.
-  So to completely fill the chain pre-set rx_slot to 0 and
-  pass in an end of 0.
- */
-static void emac_rx_fill(struct net_device *dev, int end)
-{
-	int i;
-	struct ocp_enet_private *fep = dev->priv;
-
-	i = fep->rx_slot;
-	do {
-		/* We don't want the 16 bytes skb_reserve done by dev_alloc_skb,
-		 * it breaks our cache line alignement. However, we still allocate
-		 * +16 so that we end up allocating the exact same size as
-		 * dev_alloc_skb() would do.
-		 * Also, because of the skb_res, the max DMA size we give to EMAC
-		 * is slighly wrong, causing it to potentially DMA 2 more bytes
-		 * from a broken/oversized packet. These 16 bytes will take care
-		 * that we don't walk on somebody else toes with that.
-		 */
-		fep->rx_skb[i] =
-		    alloc_skb(fep->rx_buffer_size + 16, GFP_ATOMIC);
-
-		if (fep->rx_skb[i] == NULL) {
-			/* Keep rx_slot here, the next time clean/fill is called
-			 * we will try again before the MAL wraps back here
-			 * If the MAL tries to use this descriptor with
-			 * the EMPTY bit off it will cause the
-			 * rxde interrupt.  That is where we will
-			 * try again to allocate an sk_buff.
-			 */
-			break;
+	/* Reallocate RX ring only if bigger skb buffers are required */
+	if (rx_skb_size <= dev->rx_skb_size)
+		goto skip;
 
+	/* Second pass, allocate new skbs */
+	for (i = 0; i < NUM_RX_BUFF; ++i) {
+		struct sk_buff *skb = alloc_skb(rx_skb_size, GFP_ATOMIC);
+		if (!skb) {
+			ret = -ENOMEM;
+			goto oom;
 		}
 
-		if (skb_res)
-			skb_reserve(fep->rx_skb[i], skb_res);
+		BUG_ON(!dev->rx_skb[i]);
+		dev_kfree_skb(dev->rx_skb[i]);
 
-		/* We must NOT dma_map_single the cache line right after the
-		 * buffer, so we must crop our sync size to account for the
-		 * reserved space
-		 */
-		fep->rx_desc[i].data_ptr =
-		    (unsigned char *)dma_map_single(&fep->ocpdev->dev,
-						    (void *)fep->rx_skb[i]->
-						    data,
-						    fep->rx_buffer_size -
-						    skb_res, DMA_FROM_DEVICE);
-
-		/*
-		 * Some 4xx implementations use the previously
-		 * reserved bits in data_len to encode the MS
-		 * 4-bits of a 36-bit physical address (ERPN)
-		 * This must be initialized.
-		 */
-		fep->rx_desc[i].data_len = 0;
-		fep->rx_desc[i].ctrl = MAL_RX_CTRL_EMPTY | MAL_RX_CTRL_INTR |
-		    (i == (NUM_RX_BUFF - 1) ? MAL_RX_CTRL_WRAP : 0);
+		skb_reserve(skb, EMAC_RX_SKB_HEADROOM + 2);
+		dev->rx_desc[i].data_ptr =
+		    dma_map_single(dev->ldev, skb->data - 2, rx_sync_size,
+				   DMA_FROM_DEVICE) + 2;
+		dev->rx_skb[i] = skb;
+	}
+      skip:
+	/* Check if we need to change "Jumbo" bit in MR1 */
+	if ((new_mtu > ETH_DATA_LEN) ^ (dev->ndev->mtu > ETH_DATA_LEN)) {
+		/* This is to prevent starting RX channel in emac_rx_enable() */
+		dev->commac.rx_stopped = 1;
+
+		dev->ndev->mtu = new_mtu;
+		emac_full_tx_reset(dev->ndev);
+	}
 
-	} while ((i = (i + 1) % NUM_RX_BUFF) != end);
+	mal_set_rcbs(dev->mal, emacdata->mal_rx_chan, emac_rx_size(new_mtu));
+      oom:
+	/* Restart RX */
+	dev->commac.rx_stopped = dev->rx_slot = 0;
+	mal_enable_rx_channel(dev->mal, emacdata->mal_rx_chan);
+	emac_rx_enable(dev);
 
-	fep->rx_slot = i;
+	return ret;
 }
 
-static void
-emac_rx_csum(struct net_device *dev, unsigned short ctrl, struct sk_buff *skb)
+/* Process ctx, rtnl_lock semaphore */
+static int emac_change_mtu(struct net_device *ndev, int new_mtu)
 {
-	struct ocp_enet_private *fep = dev->priv;
+	struct ocp_enet_private *dev = ndev->priv;
+	int ret = 0;
 
-	/* Exit if interface has no TAH engine */
-	if (!fep->tah_dev) {
-		skb->ip_summed = CHECKSUM_NONE;
-		return;
-	}
+	if (new_mtu < EMAC_MIN_MTU || new_mtu > EMAC_MAX_MTU)
+		return -EINVAL;
 
-	/* Check for TCP/UDP/IP csum error */
-	if (ctrl & EMAC_CSUM_VER_ERROR) {
-		/* Let the stack verify checksum errors */
-		skb->ip_summed = CHECKSUM_NONE;
-/*		adapter->hw_csum_err++; */
-	} else {
-		/* Csum is good */
-		skb->ip_summed = CHECKSUM_UNNECESSARY;
-/*		adapter->hw_csum_good++; */
-	}
-}
+	DBG("%d: change_mtu(%d)" NL, dev->def->index, new_mtu);
 
-static int emac_rx_clean(struct net_device *dev)
-{
-	int i, b, bnum = 0, buf[6];
-	int error, frame_length;
-	struct ocp_enet_private *fep = dev->priv;
-	unsigned short ctrl;
+	local_bh_disable();
+	if (netif_running(ndev)) {
+		/* Check if we really need to reinitalize RX ring */
+		if (emac_rx_skb_size(ndev->mtu) != emac_rx_skb_size(new_mtu))
+			ret = emac_resize_rx_ring(dev, new_mtu);
+	}
 
-	i = fep->rx_slot;
+	if (!ret) {
+		ndev->mtu = new_mtu;
+		dev->rx_skb_size = emac_rx_skb_size(new_mtu);
+		dev->rx_sync_size = emac_rx_sync_size(new_mtu);
+	}	
+	local_bh_enable();
 
-	PKT_DEBUG(("emac_rx_clean() entry, rx_slot: %d\n", fep->rx_slot));
+	return ret;
+}
 
-	do {
-		if (fep->rx_skb[i] == NULL)
-			continue;	/*we have already handled the packet but haved failed to alloc */
-		/* 
-		   since rx_desc is in uncached mem we don't keep reading it directly 
-		   we pull out a local copy of ctrl and do the checks on the copy.
-		 */
-		ctrl = fep->rx_desc[i].ctrl;
-		if (ctrl & MAL_RX_CTRL_EMPTY)
-			break;	/*we don't have any more ready packets */
-
-		if (EMAC_IS_BAD_RX_PACKET(ctrl)) {
-			fep->stats.rx_errors++;
-			fep->stats.rx_dropped++;
-
-			if (ctrl & EMAC_RX_ST_OE)
-				fep->stats.rx_fifo_errors++;
-			if (ctrl & EMAC_RX_ST_AE)
-				fep->stats.rx_frame_errors++;
-			if (ctrl & EMAC_RX_ST_BFCS)
-				fep->stats.rx_crc_errors++;
-			if (ctrl & (EMAC_RX_ST_RP | EMAC_RX_ST_PTL |
-				    EMAC_RX_ST_ORE | EMAC_RX_ST_IRE))
-				fep->stats.rx_length_errors++;
-		} else {
-			if ((ctrl & (MAL_RX_CTRL_FIRST | MAL_RX_CTRL_LAST)) ==
-			    (MAL_RX_CTRL_FIRST | MAL_RX_CTRL_LAST)) {
-				/* Single descriptor packet */
-				emac_rx_csum(dev, ctrl, fep->rx_skb[i]);
-				/* Send the skb up the chain. */
-				frame_length = fep->rx_desc[i].data_len - 4;
-				skb_put(fep->rx_skb[i], frame_length);
-				fep->rx_skb[i]->dev = dev;
-				fep->rx_skb[i]->protocol =
-				    eth_type_trans(fep->rx_skb[i], dev);
-				error = netif_rx(fep->rx_skb[i]);
-
-				if ((error == NET_RX_DROP) ||
-				    (error == NET_RX_BAD)) {
-					fep->stats.rx_dropped++;
-				} else {
-					fep->stats.rx_packets++;
-					fep->stats.rx_bytes += frame_length;
-				}
-				fep->rx_skb[i] = NULL;
-			} else {
-				/* Multiple descriptor packet */
-				if (ctrl & MAL_RX_CTRL_FIRST) {
-					if (fep->rx_desc[(i + 1) % NUM_RX_BUFF].
-					    ctrl & MAL_RX_CTRL_EMPTY)
-						break;
-					bnum = 0;
-					buf[bnum] = i;
-					++bnum;
-					continue;
-				}
-				if (((ctrl & MAL_RX_CTRL_FIRST) !=
-				     MAL_RX_CTRL_FIRST) &&
-				    ((ctrl & MAL_RX_CTRL_LAST) !=
-				     MAL_RX_CTRL_LAST)) {
-					if (fep->rx_desc[(i + 1) %
-							 NUM_RX_BUFF].ctrl &
-					    MAL_RX_CTRL_EMPTY) {
-						i = buf[0];
-						break;
-					}
-					buf[bnum] = i;
-					++bnum;
-					continue;
-				}
-				if (ctrl & MAL_RX_CTRL_LAST) {
-					buf[bnum] = i;
-					++bnum;
-					skb_put(fep->rx_skb[buf[0]],
-						fep->rx_desc[buf[0]].data_len);
-					for (b = 1; b < bnum; b++) {
-						/*
-						 * MAL is braindead, we need
-						 * to copy the remainder
-						 * of the packet from the
-						 * latter descriptor buffers
-						 * to the first skb. Then
-						 * dispose of the source
-						 * skbs.
-						 *
-						 * Once the stack is fixed
-						 * to handle frags on most
-						 * protocols we can generate
-						 * a fragmented skb with
-						 * no copies.
-						 */
-						memcpy(fep->rx_skb[buf[0]]->
-						       data +
-						       fep->rx_skb[buf[0]]->len,
-						       fep->rx_skb[buf[b]]->
-						       data,
-						       fep->rx_desc[buf[b]].
-						       data_len);
-						skb_put(fep->rx_skb[buf[0]],
-							fep->rx_desc[buf[b]].
-							data_len);
-						dma_unmap_single(&fep->ocpdev->
-								 dev,
-								 fep->
-								 rx_desc[buf
-									 [b]].
-								 data_ptr,
-								 fep->
-								 rx_desc[buf
-									 [b]].
-								 data_len,
-								 DMA_FROM_DEVICE);
-						dev_kfree_skb(fep->
-							      rx_skb[buf[b]]);
-					}
-					emac_rx_csum(dev, ctrl,
-						     fep->rx_skb[buf[0]]);
-
-					fep->rx_skb[buf[0]]->dev = dev;
-					fep->rx_skb[buf[0]]->protocol =
-					    eth_type_trans(fep->rx_skb[buf[0]],
-							   dev);
-					error = netif_rx(fep->rx_skb[buf[0]]);
-
-					if ((error == NET_RX_DROP)
-					    || (error == NET_RX_BAD)) {
-						fep->stats.rx_dropped++;
-					} else {
-						fep->stats.rx_packets++;
-						fep->stats.rx_bytes +=
-						    fep->rx_skb[buf[0]]->len;
-					}
-					for (b = 0; b < bnum; b++)
-						fep->rx_skb[buf[b]] = NULL;
-				}
-			}
+static void emac_clean_tx_ring(struct ocp_enet_private *dev)
+{
+	int i;
+	for (i = 0; i < NUM_TX_BUFF; ++i) {
+		if (dev->tx_skb[i]) {
+			dev_kfree_skb(dev->tx_skb[i]);
+			dev->tx_skb[i] = NULL;
+			if (dev->tx_desc[i].ctrl & MAL_TX_CTRL_READY)
+				++dev->estats.tx_dropped;
 		}
-	} while ((i = (i + 1) % NUM_RX_BUFF) != fep->rx_slot);
-
-	PKT_DEBUG(("emac_rx_clean() exit, rx_slot: %d\n", fep->rx_slot));
-
-	return i;
+		dev->tx_desc[i].ctrl = 0;
+		dev->tx_desc[i].data_ptr = 0;
+	}
 }
 
-static void emac_rxeob_dev(void *param, u32 chanmask)
+static void emac_clean_rx_ring(struct ocp_enet_private *dev)
 {
-	struct net_device *dev = param;
-	struct ocp_enet_private *fep = dev->priv;
-	unsigned long flags;
-	int n;
+	int i;
+	for (i = 0; i < NUM_RX_BUFF; ++i)
+		if (dev->rx_skb[i]) {
+			dev->rx_desc[i].ctrl = 0;
+			dev_kfree_skb(dev->rx_skb[i]);
+			dev->rx_skb[i] = NULL;
+			dev->rx_desc[i].data_ptr = 0;
+		}
 
-	spin_lock_irqsave(&fep->lock, flags);
-	if ((n = emac_rx_clean(dev)) != fep->rx_slot)
-		emac_rx_fill(dev, n);
-	spin_unlock_irqrestore(&fep->lock, flags);
+	if (dev->rx_sg_skb) {
+		dev_kfree_skb(dev->rx_sg_skb);
+		dev->rx_sg_skb = NULL;
+	}
 }
 
-/*
- * This interrupt should never occurr, we don't program
- * the MAL for contiunous mode.
- */
-static void emac_txde_dev(void *param, u32 chanmask)
+static inline int emac_alloc_rx_skb(struct ocp_enet_private *dev, int slot,
+				    int flags)
 {
-	struct net_device *dev = param;
-	struct ocp_enet_private *fep = dev->priv;
+	struct sk_buff *skb = alloc_skb(dev->rx_skb_size, flags);
+	if (unlikely(!skb))
+		return -ENOMEM;
 
-	printk(KERN_WARNING "%s: transmit descriptor error\n", dev->name);
+	dev->rx_skb[slot] = skb;
+	dev->rx_desc[slot].data_len = 0;
 
-	emac_mac_dump(dev);
-	emac_mal_dump(dev);
+	skb_reserve(skb, EMAC_RX_SKB_HEADROOM + 2);
+	dev->rx_desc[slot].data_ptr = 
+	    dma_map_single(dev->ldev, skb->data - 2, dev->rx_sync_size, 
+			   DMA_FROM_DEVICE) + 2;
+	barrier();
+	dev->rx_desc[slot].ctrl = MAL_RX_CTRL_EMPTY |
+	    (slot == (NUM_RX_BUFF - 1) ? MAL_RX_CTRL_WRAP : 0);
 
-	/* Reenable the transmit channel */
-	mal_enable_tx_channels(fep->mal, fep->commac.tx_chan_mask);
+	return 0;
 }
 
-/*
- * This interrupt should be very rare at best.  This occurs when
- * the hardware has a problem with the receive descriptors.  The manual
- * states that it occurs when the hardware cannot the receive descriptor
- * empty bit is not set.  The recovery mechanism will be to
- * traverse through the descriptors, handle any that are marked to be
- * handled and reinitialize each along the way.  At that point the driver
- * will be restarted.
- */
-static void emac_rxde_dev(void *param, u32 chanmask)
+static void emac_print_link_status(struct ocp_enet_private *dev)
 {
-	struct net_device *dev = param;
-	struct ocp_enet_private *fep = dev->priv;
-	unsigned long flags;
-
-	if (net_ratelimit()) {
-		printk(KERN_WARNING "%s: receive descriptor error\n",
-		       fep->ndev->name);
+	if (netif_carrier_ok(dev->ndev))
+		printk(KERN_INFO "%s: link is up, %d %s%s\n",
+		       dev->ndev->name, dev->phy.speed,
+		       dev->phy.duplex == DUPLEX_FULL ? "FDX" : "HDX",
+		       dev->phy.pause ? ", pause enabled" :
+		       dev->phy.asym_pause ? ", assymetric pause enabled" : "");
+	else
+		printk(KERN_INFO "%s: link is down\n", dev->ndev->name);
+}
 
-		emac_mac_dump(dev);
-		emac_mal_dump(dev);
-		emac_desc_dump(dev);
+/* Process ctx, rtnl_lock semaphore */
+static int emac_open(struct net_device *ndev)
+{
+	struct ocp_enet_private *dev = ndev->priv;
+	struct ocp_func_emac_data *emacdata = dev->def->additions;
+	int err, i;
+
+	DBG("%d: open" NL, dev->def->index);
+
+	/* Setup error IRQ handler */
+	err = request_irq(dev->def->irq, emac_irq, 0, "EMAC", dev);
+	if (err) {
+		printk(KERN_ERR "%s: failed to request IRQ %d\n",
+		       ndev->name, dev->def->irq);
+		return err;
 	}
 
-	/* Disable RX channel */
-	spin_lock_irqsave(&fep->lock, flags);
-	mal_disable_rx_channels(fep->mal, fep->commac.rx_chan_mask);
-
-	/* For now, charge the error against all emacs */
-	fep->stats.rx_errors++;
-
-	/* so do we have any good packets still? */
-	emac_rx_clean(dev);
-
-	/* When the interface is restarted it resets processing to the
-	 *  first descriptor in the table.
-	 */
-
-	fep->rx_slot = 0;
-	emac_rx_fill(dev, 0);
+	/* Allocate RX ring */
+	for (i = 0; i < NUM_RX_BUFF; ++i)
+		if (emac_alloc_rx_skb(dev, i, GFP_KERNEL)) {
+			printk(KERN_ERR "%s: failed to allocate RX ring\n",
+			       ndev->name);
+			goto oom;
+		}
 
-	set_mal_dcrn(fep->mal, DCRN_MALRXEOBISR, fep->commac.rx_chan_mask);
-	set_mal_dcrn(fep->mal, DCRN_MALRXDEIR, fep->commac.rx_chan_mask);
+	local_bh_disable();
+	dev->tx_cnt = dev->tx_slot = dev->ack_slot = dev->rx_slot =
+	    dev->commac.rx_stopped = 0;
+	dev->rx_sg_skb = NULL;
+
+	if (dev->phy.address >= 0) {
+		int link_poll_interval;
+		if (dev->phy.def->ops->poll_link(&dev->phy)) {
+			dev->phy.def->ops->read_link(&dev->phy);
+			EMAC_RX_CLK_DEFAULT(dev->def->index);
+			netif_carrier_on(dev->ndev);
+			link_poll_interval = PHY_POLL_LINK_ON;
+		} else {
+			EMAC_RX_CLK_TX(dev->def->index);
+			netif_carrier_off(dev->ndev);
+			link_poll_interval = PHY_POLL_LINK_OFF;
+		}
+		mod_timer(&dev->link_timer, jiffies + link_poll_interval);
+		emac_print_link_status(dev);
+	} else
+		netif_carrier_on(dev->ndev);
+
+	emac_configure(dev);
+	mal_poll_add(dev->mal, &dev->commac);
+	mal_enable_tx_channel(dev->mal, emacdata->mal_tx_chan);
+	mal_set_rcbs(dev->mal, emacdata->mal_rx_chan, emac_rx_size(ndev->mtu));
+	mal_enable_rx_channel(dev->mal, emacdata->mal_rx_chan);
+	emac_tx_enable(dev);
+	emac_rx_enable(dev);
+	netif_start_queue(ndev);
+	local_bh_enable();
 
-	/* Reenable the receive channels */
-	mal_enable_rx_channels(fep->mal, fep->commac.rx_chan_mask);
-	spin_unlock_irqrestore(&fep->lock, flags);
+	return 0;
+      oom:
+	emac_clean_rx_ring(dev);
+	free_irq(dev->def->irq, dev);
+	return -ENOMEM;
 }
 
-static irqreturn_t
-emac_mac_irq(int irq, void *dev_instance, struct pt_regs *regs)
+/* BHs disabled */
+static int emac_link_differs(struct ocp_enet_private *dev)
 {
-	struct net_device *dev = dev_instance;
-	struct ocp_enet_private *fep = dev->priv;
-	emac_t *emacp = fep->emacp;
-	unsigned long tmp_em0isr;
+	u32 r = in_be32(&dev->emacp->mr1);
 
-	/* EMAC interrupt */
-	tmp_em0isr = in_be32(&emacp->em0isr);
-	if (tmp_em0isr & (EMAC_ISR_TE0 | EMAC_ISR_TE1)) {
-		/* This error is a hard transmit error - could retransmit */
-		fep->stats.tx_errors++;
+	int duplex = r & EMAC_MR1_FDE ? DUPLEX_FULL : DUPLEX_HALF;
+	int speed, pause, asym_pause;
 
-		/* Reenable the transmit channel */
-		mal_enable_tx_channels(fep->mal, fep->commac.tx_chan_mask);
+	if (r & (EMAC_MR1_MF_1000 | EMAC_MR1_MF_1000GPCS))
+		speed = SPEED_1000;
+	else if (r & EMAC_MR1_MF_100)
+		speed = SPEED_100;
+	else
+		speed = SPEED_10;
 
-	} else {
-		fep->stats.rx_errors++;
+	switch (r & (EMAC_MR1_EIFC | EMAC_MR1_APP)) {
+	case (EMAC_MR1_EIFC | EMAC_MR1_APP):
+		pause = 1;
+		asym_pause = 0;
+		break;
+	case EMAC_MR1_APP:
+		pause = 0;
+		asym_pause = 1;
+		break;
+	default:
+		pause = asym_pause = 0;
 	}
-
-	if (tmp_em0isr & EMAC_ISR_RP)
-		fep->stats.rx_length_errors++;
-	if (tmp_em0isr & EMAC_ISR_ALE)
-		fep->stats.rx_frame_errors++;
-	if (tmp_em0isr & EMAC_ISR_BFCS)
-		fep->stats.rx_crc_errors++;
-	if (tmp_em0isr & EMAC_ISR_PTLE)
-		fep->stats.rx_length_errors++;
-	if (tmp_em0isr & EMAC_ISR_ORE)
-		fep->stats.rx_length_errors++;
-	if (tmp_em0isr & EMAC_ISR_TE0)
-		fep->stats.tx_aborted_errors++;
-
-	emac_err_dump(dev, tmp_em0isr);
-
-	out_be32(&emacp->em0isr, tmp_em0isr);
-
-	return IRQ_HANDLED;
+	return speed != dev->phy.speed || duplex != dev->phy.duplex ||
+	    pause != dev->phy.pause || asym_pause != dev->phy.asym_pause;
 }
 
-static int emac_start_xmit(struct sk_buff *skb, struct net_device *dev)
+/* BHs disabled */
+static void emac_link_timer(unsigned long data)
 {
-	unsigned short ctrl;
-	unsigned long flags;
-	struct ocp_enet_private *fep = dev->priv;
-	emac_t *emacp = fep->emacp;
-	int len = skb->len;
-	unsigned int offset = 0, size, f, tx_slot_first;
-	unsigned int nr_frags = skb_shinfo(skb)->nr_frags;
-
-	spin_lock_irqsave(&fep->lock, flags);
-
-	len -= skb->data_len;
+	struct ocp_enet_private *dev = (struct ocp_enet_private *)data;
+	int link_poll_interval;
 
-	if ((fep->tx_cnt + nr_frags + len / DESC_BUF_SIZE + 1) > NUM_TX_BUFF) {
-		PKT_DEBUG(("emac_start_xmit() stopping queue\n"));
-		netif_stop_queue(dev);
-		spin_unlock_irqrestore(&fep->lock, flags);
-		return -EBUSY;
-	}
+	DBG2("%d: link timer" NL, dev->def->index);
 
-	tx_slot_first = fep->tx_slot;
+	if (dev->phy.def->ops->poll_link(&dev->phy)) {
+		if (!netif_carrier_ok(dev->ndev)) {
+			EMAC_RX_CLK_DEFAULT(dev->def->index);
 
-	while (len) {
-		size = min(len, DESC_BUF_SIZE);
+			/* Get new link parameters */
+			dev->phy.def->ops->read_link(&dev->phy);
 
-		fep->tx_desc[fep->tx_slot].data_len = (short)size;
-		fep->tx_desc[fep->tx_slot].data_ptr =
-		    (unsigned char *)dma_map_single(&fep->ocpdev->dev,
-						    (void *)((unsigned int)skb->
-							     data + offset),
-						    size, DMA_TO_DEVICE);
+			if (dev->tah_dev || emac_link_differs(dev))
+				emac_full_tx_reset(dev->ndev);
 
-		ctrl = EMAC_TX_CTRL_DFLT;
-		if (fep->tx_slot != tx_slot_first)
-			ctrl |= MAL_TX_CTRL_READY;
-		if ((NUM_TX_BUFF - 1) == fep->tx_slot)
-			ctrl |= MAL_TX_CTRL_WRAP;
-		if (!nr_frags && (len == size)) {
-			ctrl |= MAL_TX_CTRL_LAST;
-			fep->tx_skb[fep->tx_slot] = skb;
+			netif_carrier_on(dev->ndev);
+			emac_print_link_status(dev);
+		}
+		link_poll_interval = PHY_POLL_LINK_ON;
+	} else {
+		if (netif_carrier_ok(dev->ndev)) {
+			EMAC_RX_CLK_TX(dev->def->index);
+#if defined(CONFIG_IBM_EMAC_PHY_RX_CLK_FIX)
+			emac_reinitialize(dev);
+#endif
+			netif_carrier_off(dev->ndev);
+			emac_print_link_status(dev);
 		}
-		if (skb->ip_summed == CHECKSUM_HW)
-			ctrl |= EMAC_TX_CTRL_TAH_CSUM;
-
-		fep->tx_desc[fep->tx_slot].ctrl = ctrl;
-
-		len -= size;
-		offset += size;
 
-		/* Bump tx count */
-		if (++fep->tx_cnt == NUM_TX_BUFF)
-			netif_stop_queue(dev);
+		/* Retry reset if the previous attempt failed.
+		 * This is needed mostly for CONFIG_IBM_EMAC_PHY_RX_CLK_FIX
+		 * case, but I left it here because it shouldn't trigger for
+		 * sane PHYs anyway.
+		 */
+		if (unlikely(dev->reset_failed))
+			emac_reinitialize(dev);
 
-		/* Next descriptor */
-		if (++fep->tx_slot == NUM_TX_BUFF)
-			fep->tx_slot = 0;
+		link_poll_interval = PHY_POLL_LINK_OFF;
 	}
+	mod_timer(&dev->link_timer, jiffies + link_poll_interval);
+}
 
-	for (f = 0; f < nr_frags; f++) {
-		struct skb_frag_struct *frag;
-
-		frag = &skb_shinfo(skb)->frags[f];
-		len = frag->size;
-		offset = 0;
-
-		while (len) {
-			size = min(len, DESC_BUF_SIZE);
-
-			dma_map_page(&fep->ocpdev->dev,
-				     frag->page,
-				     frag->page_offset + offset,
-				     size, DMA_TO_DEVICE);
-
-			ctrl = EMAC_TX_CTRL_DFLT | MAL_TX_CTRL_READY;
-			if ((NUM_TX_BUFF - 1) == fep->tx_slot)
-				ctrl |= MAL_TX_CTRL_WRAP;
-			if ((f == (nr_frags - 1)) && (len == size)) {
-				ctrl |= MAL_TX_CTRL_LAST;
-				fep->tx_skb[fep->tx_slot] = skb;
-			}
-
-			if (skb->ip_summed == CHECKSUM_HW)
-				ctrl |= EMAC_TX_CTRL_TAH_CSUM;
-
-			fep->tx_desc[fep->tx_slot].data_len = (short)size;
-			fep->tx_desc[fep->tx_slot].data_ptr =
-			    (char *)((page_to_pfn(frag->page) << PAGE_SHIFT) +
-				     frag->page_offset + offset);
-			fep->tx_desc[fep->tx_slot].ctrl = ctrl;
-
-			len -= size;
-			offset += size;
-
-			/* Bump tx count */
-			if (++fep->tx_cnt == NUM_TX_BUFF)
-				netif_stop_queue(dev);
+/* BHs disabled */
+static void emac_force_link_update(struct ocp_enet_private *dev)
+{
+	netif_carrier_off(dev->ndev);
+	if (timer_pending(&dev->link_timer))
+		mod_timer(&dev->link_timer, jiffies + PHY_POLL_LINK_OFF);
+}
 
-			/* Next descriptor */
-			if (++fep->tx_slot == NUM_TX_BUFF)
-				fep->tx_slot = 0;
-		}
-	}
+/* Process ctx, rtnl_lock semaphore */
+static int emac_close(struct net_device *ndev)
+{
+	struct ocp_enet_private *dev = ndev->priv;
+	struct ocp_func_emac_data *emacdata = dev->def->additions;
 
-	/*
-	 * Deferred set READY on first descriptor of packet to
-	 * avoid TX MAL race.
-	 */
-	fep->tx_desc[tx_slot_first].ctrl |= MAL_TX_CTRL_READY;
+	DBG("%d: close" NL, dev->def->index);
 
-	/* Send the packet out. */
-	out_be32(&emacp->em0tmr0, EMAC_TMR0_XMIT);
+	local_bh_disable();
 
-	fep->stats.tx_packets++;
-	fep->stats.tx_bytes += skb->len;
+	if (dev->phy.address >= 0)
+		del_timer_sync(&dev->link_timer);
 
-	PKT_DEBUG(("emac_start_xmit() exitn"));
+	netif_stop_queue(ndev);
+	emac_rx_disable(dev);
+	emac_tx_disable(dev);
+	mal_disable_rx_channel(dev->mal, emacdata->mal_rx_chan);
+	mal_disable_tx_channel(dev->mal, emacdata->mal_tx_chan);
+	mal_poll_del(dev->mal, &dev->commac);
+	local_bh_enable();
 
-	spin_unlock_irqrestore(&fep->lock, flags);
+	emac_clean_tx_ring(dev);
+	emac_clean_rx_ring(dev);
+	free_irq(dev->def->irq, dev);
 
 	return 0;
 }
 
-static int emac_adjust_to_link(struct ocp_enet_private *fep)
+static inline u16 emac_tx_csum(struct ocp_enet_private *dev,
+			       struct sk_buff *skb)
 {
-	emac_t *emacp = fep->emacp;
-	unsigned long mode_reg;
-	int full_duplex, speed;
-
-	full_duplex = 0;
-	speed = SPEED_10;
-
-	/* set mode register 1 defaults */
-	mode_reg = EMAC_M1_DEFAULT;
-
-	/* Read link mode on PHY */
-	if (fep->phy_mii.def->ops->read_link(&fep->phy_mii) == 0) {
-		/* If an error occurred, we don't deal with it yet */
-		full_duplex = (fep->phy_mii.duplex == DUPLEX_FULL);
-		speed = fep->phy_mii.speed;
+#if defined(CONFIG_IBM_EMAC_TAH)
+	if (skb->ip_summed == CHECKSUM_HW) {
+		++dev->stats.tx_packets_csum;
+		return EMAC_TX_CTRL_TAH_CSUM;
 	}
+#endif
+	return 0;
+}
 
+static inline int emac_xmit_finish(struct ocp_enet_private *dev, int len)
+{
+	struct emac_regs *p = dev->emacp;
+	struct net_device *ndev = dev->ndev;
 
-	/* set speed (default is 10Mb) */
-	switch (speed) {
-	case SPEED_1000:
-		mode_reg |= EMAC_M1_RFS_16K;
-		if (fep->rgmii_dev) {
-			struct ibm_ocp_rgmii *rgmii = RGMII_PRIV(fep->rgmii_dev);
-
-			if ((rgmii->mode[fep->rgmii_input] == RTBI)
-			    || (rgmii->mode[fep->rgmii_input] == TBI))
-				mode_reg |= EMAC_M1_MF_1000GPCS;
-			else
-				mode_reg |= EMAC_M1_MF_1000MBPS;
-
-			emac_rgmii_port_speed(fep->rgmii_dev, fep->rgmii_input,
-					      1000);
-		}
-		break;
-	case SPEED_100:
-		mode_reg |= EMAC_M1_MF_100MBPS | EMAC_M1_RFS_4K;
-		if (fep->rgmii_dev)
-			emac_rgmii_port_speed(fep->rgmii_dev, fep->rgmii_input,
-					      100);
-		if (fep->zmii_dev)
-			emac_zmii_port_speed(fep->zmii_dev, fep->zmii_input,
-					     100);
-		break;
-	case SPEED_10:
-	default:
-		mode_reg = (mode_reg & ~EMAC_M1_MF_100MBPS) | EMAC_M1_RFS_4K;
-		if (fep->rgmii_dev)
-			emac_rgmii_port_speed(fep->rgmii_dev, fep->rgmii_input,
-					      10);
-		if (fep->zmii_dev)
-			emac_zmii_port_speed(fep->zmii_dev, fep->zmii_input,
-					     10);
-	}
-
-	if (full_duplex)
-		mode_reg |= EMAC_M1_FDE | EMAC_M1_EIFC | EMAC_M1_IST;
-	else
-		mode_reg &= ~(EMAC_M1_FDE | EMAC_M1_EIFC | EMAC_M1_ILE);
+	/* Send the packet out */
+	out_be32(&p->tmr0, EMAC_TMR0_XMIT);
 
-	LINK_DEBUG(("%s: adjust to link, speed: %d, duplex: %d, opened: %d\n",
-		    fep->ndev->name, speed, full_duplex, fep->opened));
+	if (unlikely(++dev->tx_cnt == NUM_TX_BUFF)) {
+		netif_stop_queue(ndev);
+		DBG2("%d: stopped TX queue" NL, dev->def->index);
+	}
 
-	printk(KERN_INFO "%s: Speed: %d, %s duplex.\n",
-	       fep->ndev->name, speed, full_duplex ? "Full" : "Half");
-	if (fep->opened)
-		out_be32(&emacp->em0mr1, mode_reg);
+	ndev->trans_start = jiffies;
+	++dev->stats.tx_packets;
+	dev->stats.tx_bytes += len;
 
 	return 0;
 }
 
-static int emac_set_mac_address(struct net_device *ndev, void *p)
+/* BHs disabled */
+static int emac_start_xmit(struct sk_buff *skb, struct net_device *ndev)
 {
-	struct ocp_enet_private *fep = ndev->priv;
-	emac_t *emacp = fep->emacp;
-	struct sockaddr *addr = p;
+	struct ocp_enet_private *dev = ndev->priv;
+	unsigned int len = skb->len;
+	int slot;
 
-	if (!is_valid_ether_addr(addr->sa_data))
-		return -EADDRNOTAVAIL;
+	u16 ctrl = EMAC_TX_CTRL_GFCS | EMAC_TX_CTRL_GP | MAL_TX_CTRL_READY |
+	    MAL_TX_CTRL_LAST | emac_tx_csum(dev, skb);
 
-	memcpy(ndev->dev_addr, addr->sa_data, ndev->addr_len);
+	slot = dev->tx_slot++;
+	if (dev->tx_slot == NUM_TX_BUFF) {
+		dev->tx_slot = 0;
+		ctrl |= MAL_TX_CTRL_WRAP;
+	}
 
-	/* set the high address */
-	out_be32(&emacp->em0iahr,
-		 (fep->ndev->dev_addr[0] << 8) | fep->ndev->dev_addr[1]);
+	DBG2("%d: xmit(%u) %d" NL, dev->def->index, len, slot);
 
-	/* set the low address */
-	out_be32(&emacp->em0ialr,
-		 (fep->ndev->dev_addr[2] << 24) | (fep->ndev->dev_addr[3] << 16)
-		 | (fep->ndev->dev_addr[4] << 8) | fep->ndev->dev_addr[5]);
+	dev->tx_skb[slot] = skb;
+	dev->tx_desc[slot].data_ptr = dma_map_single(dev->ldev, skb->data, len,
+						     DMA_TO_DEVICE);
+	dev->tx_desc[slot].data_len = (u16) len;
+	barrier();
+	dev->tx_desc[slot].ctrl = ctrl;
 
-	return 0;
+	return emac_xmit_finish(dev, len);
 }
 
-static int emac_change_mtu(struct net_device *dev, int new_mtu)
+#if defined(CONFIG_IBM_EMAC_TAH)
+static inline int emac_xmit_split(struct ocp_enet_private *dev, int slot,
+				  u32 pd, int len, int last, u16 base_ctrl)
 {
-	struct ocp_enet_private *fep = dev->priv;
-	int old_mtu = dev->mtu;
-	unsigned long mode_reg;
-	emac_t *emacp = fep->emacp;
-	u32 em0mr0;
-	int i, full;
-	unsigned long flags;
-
-	if ((new_mtu < EMAC_MIN_MTU) || (new_mtu > EMAC_MAX_MTU)) {
-		printk(KERN_ERR
-		       "emac: Invalid MTU setting, MTU must be between %d and %d\n",
-		       EMAC_MIN_MTU, EMAC_MAX_MTU);
-		return -EINVAL;
-	}
+	while (1) {
+		u16 ctrl = base_ctrl;
+		int chunk = min(len, MAL_MAX_TX_SIZE);
+		len -= chunk;
 
-	if (old_mtu != new_mtu && netif_running(dev)) {
-		/* Stop rx engine */
-		em0mr0 = in_be32(&emacp->em0mr0);
-		out_be32(&emacp->em0mr0, em0mr0 & ~EMAC_M0_RXE);
-
-		/* Wait for descriptors to be empty */
-		do {
-			full = 0;
-			for (i = 0; i < NUM_RX_BUFF; i++)
-				if (!(fep->rx_desc[i].ctrl & MAL_RX_CTRL_EMPTY)) {
-					printk(KERN_NOTICE
-					       "emac: RX ring is still full\n");
-					full = 1;
-				}
-		} while (full);
-
-		spin_lock_irqsave(&fep->lock, flags);
-
-		mal_disable_rx_channels(fep->mal, fep->commac.rx_chan_mask);
-
-		/* Destroy all old rx skbs */
-		for (i = 0; i < NUM_RX_BUFF; i++) {
-			dma_unmap_single(&fep->ocpdev->dev,
-					 fep->rx_desc[i].data_ptr,
-					 fep->rx_desc[i].data_len,
-					 DMA_FROM_DEVICE);
-			dev_kfree_skb(fep->rx_skb[i]);
-			fep->rx_skb[i] = NULL;
-		}
+		slot = (slot + 1) % NUM_TX_BUFF;
 
-		/* Set new rx_buffer_size, jumbo cap, and advertise new mtu */
-		mode_reg = in_be32(&emacp->em0mr1);
-		if (new_mtu > ENET_DEF_MTU_SIZE) {
-			mode_reg |= EMAC_M1_JUMBO_ENABLE;
-			fep->rx_buffer_size = EMAC_MAX_FRAME;
-		} else {
-			mode_reg &= ~EMAC_M1_JUMBO_ENABLE;
-			fep->rx_buffer_size = ENET_DEF_BUF_SIZE;
-		}
-		dev->mtu = new_mtu;
-		out_be32(&emacp->em0mr1, mode_reg);
+		if (last && !len)
+			ctrl |= MAL_TX_CTRL_LAST;
+		if (slot == NUM_TX_BUFF - 1)
+			ctrl |= MAL_TX_CTRL_WRAP;
 
-		/* Re-init rx skbs */
-		fep->rx_slot = 0;
-		emac_rx_fill(dev, 0);
+		dev->tx_skb[slot] = NULL;
+		dev->tx_desc[slot].data_ptr = pd;
+		dev->tx_desc[slot].data_len = (u16) chunk;
+		dev->tx_desc[slot].ctrl = ctrl;
+		++dev->tx_cnt;
 
-		/* Restart the rx engine */
-		mal_enable_rx_channels(fep->mal, fep->commac.rx_chan_mask);
-		out_be32(&emacp->em0mr0, em0mr0 | EMAC_M0_RXE);
+		if (!len)
+			break;
 
-		spin_unlock_irqrestore(&fep->lock, flags);
+		pd += chunk;
 	}
-
-	return 0;
+	return slot;
 }
 
-static void __emac_set_multicast_list(struct net_device *dev)
+/* BHs disabled (SG version for TAH equipped EMACs) */
+static int emac_start_xmit_sg(struct sk_buff *skb, struct net_device *ndev)
 {
-	struct ocp_enet_private *fep = dev->priv;
-	emac_t *emacp = fep->emacp;
-	u32 rmr = in_be32(&emacp->em0rmr);
-
-	/* First clear all special bits, they can be set later */
-	rmr &= ~(EMAC_RMR_PME | EMAC_RMR_PMME | EMAC_RMR_MAE);
+	struct ocp_enet_private *dev = ndev->priv;
+	int nr_frags = skb_shinfo(skb)->nr_frags;
+	int len = skb->len, chunk;
+	int slot, i;
+	u16 ctrl;
+	u32 pd;
 
-	if (dev->flags & IFF_PROMISC) {
-		rmr |= EMAC_RMR_PME;
-	} else if (dev->flags & IFF_ALLMULTI || 32 < dev->mc_count) {
-		/*
-		 * Must be setting up to use multicast
-		 * Now check for promiscuous multicast
-		 */
-		rmr |= EMAC_RMR_PMME;
-	} else if (dev->flags & IFF_MULTICAST && 0 < dev->mc_count) {
-		unsigned short em0gaht[4] = { 0, 0, 0, 0 };
-		struct dev_mc_list *dmi;
-
-		/* Need to hash on the multicast address. */
-		for (dmi = dev->mc_list; dmi; dmi = dmi->next) {
-			unsigned long mc_crc;
-			unsigned int bit_number;
-
-			mc_crc = ether_crc(6, (char *)dmi->dmi_addr);
-			bit_number = 63 - (mc_crc >> 26);	/* MSB: 0 LSB: 63 */
-			em0gaht[bit_number >> 4] |=
-			    0x8000 >> (bit_number & 0x0f);
-		}
-		emacp->em0gaht1 = em0gaht[0];
-		emacp->em0gaht2 = em0gaht[1];
-		emacp->em0gaht3 = em0gaht[2];
-		emacp->em0gaht4 = em0gaht[3];
+	/* This is common "fast" path */
+	if (likely(!nr_frags && len <= MAL_MAX_TX_SIZE))
+		return emac_start_xmit(skb, ndev);
 
-		/* Turn on multicast addressing */
-		rmr |= EMAC_RMR_MAE;
-	}
-	out_be32(&emacp->em0rmr, rmr);
-}
+	len -= skb->data_len;
 
-static int emac_init_tah(struct ocp_enet_private *fep)
-{
-	tah_t *tahp;
+	/* Note, this is only an *estimation*, we can still run out of empty
+	 * slots because of the additional fragmentation into
+	 * MAL_MAX_TX_SIZE-sized chunks
+	 */
+	if (unlikely(dev->tx_cnt + nr_frags + mal_tx_chunks(len) > NUM_TX_BUFF))
+		goto stop_queue;
+
+	ctrl = EMAC_TX_CTRL_GFCS | EMAC_TX_CTRL_GP | MAL_TX_CTRL_READY |
+	    emac_tx_csum(dev, skb);
+	slot = dev->tx_slot;
+
+	/* skb data */
+	dev->tx_skb[slot] = NULL;
+	chunk = min(len, MAL_MAX_TX_SIZE);
+	dev->tx_desc[slot].data_ptr = pd =
+	    dma_map_single(dev->ldev, skb->data, len, DMA_TO_DEVICE);
+	dev->tx_desc[slot].data_len = (u16) chunk;
+	len -= chunk;
+	if (unlikely(len))
+		slot = emac_xmit_split(dev, slot, pd + chunk, len, !nr_frags,
+				       ctrl);
+	/* skb fragments */
+	for (i = 0; i < nr_frags; ++i) {
+		struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[i];
+		len = frag->size;
 
-	/* Initialize TAH and enable checksum verification */
-	tahp = (tah_t *) ioremap(fep->tah_dev->def->paddr, sizeof(*tahp));
+		if (unlikely(dev->tx_cnt + mal_tx_chunks(len) >= NUM_TX_BUFF))
+			goto undo_frame;
 
-	if (tahp == NULL) {
-		printk(KERN_ERR "tah%d: Cannot ioremap TAH registers!\n",
-		       fep->tah_dev->def->index);
+		pd = dma_map_page(dev->ldev, frag->page, frag->page_offset, len,
+				  DMA_TO_DEVICE);
 
-		return -ENOMEM;
+		slot = emac_xmit_split(dev, slot, pd, len, i == nr_frags - 1,
+				       ctrl);
 	}
 
-	out_be32(&tahp->tah_mr, TAH_MR_SR);
+	DBG2("%d: xmit_sg(%u) %d - %d" NL, dev->def->index, skb->len,
+	     dev->tx_slot, slot);
 
-	/* wait for reset to complete */
-	while (in_be32(&tahp->tah_mr) & TAH_MR_SR) ;
+	/* Attach skb to the last slot so we don't release it too early */
+	dev->tx_skb[slot] = skb;
 
-	/* 10KB TAH TX FIFO accomodates the max MTU of 9000 */
-	out_be32(&tahp->tah_mr,
-		 TAH_MR_CVR | TAH_MR_ST_768 | TAH_MR_TFS_10KB | TAH_MR_DTFP |
-		 TAH_MR_DIG);
+	/* Send the packet out */
+	if (dev->tx_slot == NUM_TX_BUFF - 1)
+		ctrl |= MAL_TX_CTRL_WRAP;
+	barrier();
+	dev->tx_desc[dev->tx_slot].ctrl = ctrl;
+	dev->tx_slot = (slot + 1) % NUM_TX_BUFF;
 
-	iounmap(tahp);
+	return emac_xmit_finish(dev, skb->len);
 
-	return 0;
+      undo_frame:
+	/* Well, too bad. Our previous estimation was overly optimistic. 
+	 * Undo everything.
+	 */
+	while (slot != dev->tx_slot) {
+		dev->tx_desc[slot].ctrl = 0;
+		--dev->tx_cnt;
+		if (--slot < 0)
+			slot = NUM_TX_BUFF - 1;
+	}
+	++dev->estats.tx_undo;
+
+      stop_queue:
+	netif_stop_queue(ndev);
+	DBG2("%d: stopped TX queue" NL, dev->def->index);
+	return 1;
+}
+#else
+# define emac_start_xmit_sg	emac_start_xmit
+#endif	/* !defined(CONFIG_IBM_EMAC_TAH) */
+
+/* BHs disabled */
+static void emac_parse_tx_error(struct ocp_enet_private *dev, u16 ctrl)
+{
+	struct ibm_emac_error_stats *st = &dev->estats;
+	DBG("%d: BD TX error %04x" NL, dev->def->index, ctrl);
+
+	++st->tx_bd_errors;
+	if (ctrl & EMAC_TX_ST_BFCS)
+		++st->tx_bd_bad_fcs;
+	if (ctrl & EMAC_TX_ST_LCS)
+		++st->tx_bd_carrier_loss;
+	if (ctrl & EMAC_TX_ST_ED)
+		++st->tx_bd_excessive_deferral;
+	if (ctrl & EMAC_TX_ST_EC)
+		++st->tx_bd_excessive_collisions;
+	if (ctrl & EMAC_TX_ST_LC)
+		++st->tx_bd_late_collision;
+	if (ctrl & EMAC_TX_ST_MC)
+		++st->tx_bd_multple_collisions;
+	if (ctrl & EMAC_TX_ST_SC)
+		++st->tx_bd_single_collision;
+	if (ctrl & EMAC_TX_ST_UR)
+		++st->tx_bd_underrun;
+	if (ctrl & EMAC_TX_ST_SQE)
+		++st->tx_bd_sqe;
 }
 
-static void emac_init_rings(struct net_device *dev)
+static void emac_poll_tx(void *param)
 {
-	struct ocp_enet_private *ep = dev->priv;
-	int loop;
+	struct ocp_enet_private *dev = param;
+	DBG2("%d: poll_tx, %d %d" NL, dev->def->index, dev->tx_cnt,
+	     dev->ack_slot);
+
+	if (dev->tx_cnt) {
+		u16 ctrl;
+		int slot = dev->ack_slot, n = 0;
+	      again:
+		ctrl = dev->tx_desc[slot].ctrl;
+		if (!(ctrl & MAL_TX_CTRL_READY)) {
+			struct sk_buff *skb = dev->tx_skb[slot];
+			++n;
+
+			if (skb) {
+				dev_kfree_skb(skb);
+				dev->tx_skb[slot] = NULL;
+			}
+			slot = (slot + 1) % NUM_TX_BUFF;
 
-	ep->tx_desc = (struct mal_descriptor *)((char *)ep->mal->tx_virt_addr +
-						(ep->mal_tx_chan *
-						 MAL_DT_ALIGN));
-	ep->rx_desc =
-	    (struct mal_descriptor *)((char *)ep->mal->rx_virt_addr +
-				      (ep->mal_rx_chan * MAL_DT_ALIGN));
+			if (unlikely(EMAC_IS_BAD_TX(ctrl)))
+				emac_parse_tx_error(dev, ctrl);
 
-	/* Fill in the transmit descriptor ring. */
-	for (loop = 0; loop < NUM_TX_BUFF; loop++) {
-		if (ep->tx_skb[loop]) {
-			dma_unmap_single(&ep->ocpdev->dev,
-					 ep->tx_desc[loop].data_ptr,
-					 ep->tx_desc[loop].data_len,
-					 DMA_TO_DEVICE);
-			dev_kfree_skb_irq(ep->tx_skb[loop]);
+			if (--dev->tx_cnt)
+				goto again;
 		}
-		ep->tx_skb[loop] = NULL;
-		ep->tx_desc[loop].ctrl = 0;
-		ep->tx_desc[loop].data_len = 0;
-		ep->tx_desc[loop].data_ptr = NULL;
-	}
-	ep->tx_desc[loop - 1].ctrl |= MAL_TX_CTRL_WRAP;
-
-	/* Format the receive descriptor ring. */
-	ep->rx_slot = 0;
-	/* Default is MTU=1500 + Ethernet overhead */
-	ep->rx_buffer_size = dev->mtu + ENET_HEADER_SIZE + ENET_FCS_SIZE;
-	emac_rx_fill(dev, 0);
-	if (ep->rx_slot != 0) {
-		printk(KERN_ERR
-		       "%s: Not enough mem for RxChain durning Open?\n",
-		       dev->name);
-		/*We couldn't fill the ring at startup?
-		 *We could clean up and fail to open but right now we will try to
-		 *carry on. It may be a sign of a bad NUM_RX_BUFF value
-		 */
-	}
+		if (n) {
+			dev->ack_slot = slot;
+			if (netif_queue_stopped(dev->ndev) &&
+			    dev->tx_cnt < EMAC_TX_WAKEUP_THRESH)
+				netif_wake_queue(dev->ndev);
 
-	ep->tx_cnt = 0;
-	ep->tx_slot = 0;
-	ep->ack_slot = 0;
+			DBG2("%d: tx %d pkts" NL, dev->def->index, n);
+		}
+	}
 }
 
-static void emac_reset_configure(struct ocp_enet_private *fep)
+static inline void emac_recycle_rx_skb(struct ocp_enet_private *dev, int slot,
+				       int len)
 {
-	emac_t *emacp = fep->emacp;
-	int i;
+	struct sk_buff *skb = dev->rx_skb[slot];
+	DBG2("%d: recycle %d %d" NL, dev->def->index, slot, len);
 
-	mal_disable_tx_channels(fep->mal, fep->commac.tx_chan_mask);
-	mal_disable_rx_channels(fep->mal, fep->commac.rx_chan_mask);
+	if (len) 
+		dma_map_single(dev->ldev, skb->data - 2, 
+			       EMAC_DMA_ALIGN(len + 2), DMA_FROM_DEVICE);
 
-	/*
-	 * Check for a link, some PHYs don't provide a clock if
-	 * no link is present.  Some EMACs will not come out of
-	 * soft reset without a PHY clock present.
-	 */
-	if (fep->phy_mii.def->ops->poll_link(&fep->phy_mii)) {
-		/* Reset the EMAC */
-		out_be32(&emacp->em0mr0, EMAC_M0_SRST);
-		udelay(20);
-		for (i = 0; i < 100; i++) {
-			if ((in_be32(&emacp->em0mr0) & EMAC_M0_SRST) == 0)
-				break;
-			udelay(10);
-		}
+	dev->rx_desc[slot].data_len = 0;
+	barrier();
+	dev->rx_desc[slot].ctrl = MAL_RX_CTRL_EMPTY |
+	    (slot == (NUM_RX_BUFF - 1) ? MAL_RX_CTRL_WRAP : 0);
+}
+
+static void emac_parse_rx_error(struct ocp_enet_private *dev, u16 ctrl)
+{
+	struct ibm_emac_error_stats *st = &dev->estats;
+	DBG("%d: BD RX error %04x" NL, dev->def->index, ctrl);
+
+	++st->rx_bd_errors;
+	if (ctrl & EMAC_RX_ST_OE)
+		++st->rx_bd_overrun;
+	if (ctrl & EMAC_RX_ST_BP)
+		++st->rx_bd_bad_packet;
+	if (ctrl & EMAC_RX_ST_RP)
+		++st->rx_bd_runt_packet;
+	if (ctrl & EMAC_RX_ST_SE)
+		++st->rx_bd_short_event;
+	if (ctrl & EMAC_RX_ST_AE)
+		++st->rx_bd_alignment_error;
+	if (ctrl & EMAC_RX_ST_BFCS)
+		++st->rx_bd_bad_fcs;
+	if (ctrl & EMAC_RX_ST_PTL)
+		++st->rx_bd_packet_too_long;
+	if (ctrl & EMAC_RX_ST_ORE)
+		++st->rx_bd_out_of_range;
+	if (ctrl & EMAC_RX_ST_IRE)
+		++st->rx_bd_in_range;
+}
+
+static inline void emac_rx_csum(struct ocp_enet_private *dev,
+				struct sk_buff *skb, u16 ctrl)
+{
+#if defined(CONFIG_IBM_EMAC_TAH)
+	if (!ctrl && dev->tah_dev) {
+		skb->ip_summed = CHECKSUM_UNNECESSARY;
+		++dev->stats.rx_packets_csum;
+	}
+#endif
+}
 
-		if (i >= 100) {
-			printk(KERN_ERR "%s: Cannot reset EMAC\n",
-			       fep->ndev->name);
-			return;
+static inline int emac_rx_sg_append(struct ocp_enet_private *dev, int slot)
+{
+	if (likely(dev->rx_sg_skb != NULL)) {
+		int len = dev->rx_desc[slot].data_len;
+		int tot_len = dev->rx_sg_skb->len + len;
+
+		if (unlikely(tot_len + 2 > dev->rx_skb_size)) {
+			++dev->estats.rx_dropped_mtu;
+			dev_kfree_skb(dev->rx_sg_skb);
+			dev->rx_sg_skb = NULL;
+		} else {
+			cacheable_memcpy(dev->rx_sg_skb->tail,
+					 dev->rx_skb[slot]->data, len);
+			skb_put(dev->rx_sg_skb, len);
+			emac_recycle_rx_skb(dev, slot, len);
+			return 0;
 		}
 	}
+	emac_recycle_rx_skb(dev, slot, 0);
+	return -1;
+}
 
-	/* Switch IRQs off for now */
-	out_be32(&emacp->em0iser, 0);
+/* BHs disabled */
+static int emac_poll_rx(void *param, int budget)
+{
+	struct ocp_enet_private *dev = param;
+	int slot = dev->rx_slot, received = 0;
+
+	DBG2("%d: poll_rx(%d)" NL, dev->def->index, budget);
 
-	/* Configure MAL rx channel */
-	mal_set_rcbs(fep->mal, fep->mal_rx_chan, DESC_BUF_SIZE_REG);
+      again:
+	while (budget > 0) {
+		int len;
+		struct sk_buff *skb;
+		u16 ctrl = dev->rx_desc[slot].ctrl;
+
+		if (ctrl & MAL_RX_CTRL_EMPTY)
+			break;
 
-	/* set the high address */
-	out_be32(&emacp->em0iahr,
-		 (fep->ndev->dev_addr[0] << 8) | fep->ndev->dev_addr[1]);
+		skb = dev->rx_skb[slot];
+		barrier();
+		len = dev->rx_desc[slot].data_len;
 
-	/* set the low address */
-	out_be32(&emacp->em0ialr,
-		 (fep->ndev->dev_addr[2] << 24) | (fep->ndev->dev_addr[3] << 16)
-		 | (fep->ndev->dev_addr[4] << 8) | fep->ndev->dev_addr[5]);
+		if (unlikely(!MAL_IS_SINGLE_RX(ctrl)))
+			goto sg;
 
-	/* Adjust to link */
-	if (netif_carrier_ok(fep->ndev))
-		emac_adjust_to_link(fep);
+		ctrl &= EMAC_BAD_RX_MASK;
+		if (unlikely(ctrl && ctrl != EMAC_RX_TAH_BAD_CSUM)) {
+			emac_parse_rx_error(dev, ctrl);
+			++dev->estats.rx_dropped_error;
+			emac_recycle_rx_skb(dev, slot, 0);
+			len = 0;
+			goto next;
+		}
 
-	/* enable broadcast/individual address and RX FIFO defaults */
-	out_be32(&emacp->em0rmr, EMAC_RMR_DEFAULT);
+		if (len && len < EMAC_RX_COPY_THRESH) {
+			struct sk_buff *copy_skb =
+			    alloc_skb(len + EMAC_RX_SKB_HEADROOM + 2, GFP_ATOMIC);
+			if (unlikely(!copy_skb))
+				goto oom;
+
+			skb_reserve(copy_skb, EMAC_RX_SKB_HEADROOM + 2);
+			cacheable_memcpy(copy_skb->data - 2, skb->data - 2,
+					 len + 2);
+			emac_recycle_rx_skb(dev, slot, len);
+			skb = copy_skb;
+		} else if (unlikely(emac_alloc_rx_skb(dev, slot, GFP_ATOMIC)))
+			goto oom;
+
+		skb_put(skb, len);
+	      push_packet:
+		skb->dev = dev->ndev;
+		skb->protocol = eth_type_trans(skb, dev->ndev);
+		emac_rx_csum(dev, skb, ctrl);
+
+		if (unlikely(netif_receive_skb(skb) == NET_RX_DROP))
+			++dev->estats.rx_dropped_stack;
+	      next:
+		++dev->stats.rx_packets;
+	      skip:
+		dev->stats.rx_bytes += len;
+		slot = (slot + 1) % NUM_RX_BUFF;
+		--budget;
+		++received;
+		continue;
+	      sg:
+		if (ctrl & MAL_RX_CTRL_FIRST) {
+			BUG_ON(dev->rx_sg_skb);
+			if (unlikely(emac_alloc_rx_skb(dev, slot, GFP_ATOMIC))) {
+				DBG("%d: rx OOM %d" NL, dev->def->index, slot);
+				++dev->estats.rx_dropped_oom;
+				emac_recycle_rx_skb(dev, slot, 0);
+			} else {
+				dev->rx_sg_skb = skb;
+				skb_put(skb, len);
+			}
+		} else if (!emac_rx_sg_append(dev, slot) &&
+			   (ctrl & MAL_RX_CTRL_LAST)) {
+
+			skb = dev->rx_sg_skb;
+			dev->rx_sg_skb = NULL;
+
+			ctrl &= EMAC_BAD_RX_MASK;
+			if (unlikely(ctrl && ctrl != EMAC_RX_TAH_BAD_CSUM)) {
+				emac_parse_rx_error(dev, ctrl);
+				++dev->estats.rx_dropped_error;
+				dev_kfree_skb(skb);
+				len = 0;
+			} else
+				goto push_packet;
+		}
+		goto skip;
+	      oom:
+		DBG("%d: rx OOM %d" NL, dev->def->index, slot);
+		/* Drop the packet and recycle skb */
+		++dev->estats.rx_dropped_oom;
+		emac_recycle_rx_skb(dev, slot, 0);
+		goto next;
+	}
 
-	/* set transmit request threshold register */
-	out_be32(&emacp->em0trtr, EMAC_TRTR_DEFAULT);
+	if (received) {
+		DBG2("%d: rx %d BDs" NL, dev->def->index, received);
+		dev->rx_slot = slot;
+	}
 
-	/* Reconfigure multicast */
-	__emac_set_multicast_list(fep->ndev);
+	if (unlikely(budget && dev->commac.rx_stopped)) {
+		struct ocp_func_emac_data *emacdata = dev->def->additions;
 
-	/* Set receiver/transmitter defaults */
-	out_be32(&emacp->em0rwmr, EMAC_RWMR_DEFAULT);
-	out_be32(&emacp->em0tmr0, EMAC_TMR0_DEFAULT);
-	out_be32(&emacp->em0tmr1, EMAC_TMR1_DEFAULT);
+		barrier();
+		if (!(dev->rx_desc[slot].ctrl & MAL_RX_CTRL_EMPTY)) {
+			DBG2("%d: rx restart" NL, dev->def->index);
+			received = 0;
+			goto again;
+		}
 
-	/* set frame gap */
-	out_be32(&emacp->em0ipgvr, CONFIG_IBM_EMAC_FGAP);
-	
-	/* set VLAN Tag Protocol Identifier */
-	out_be32(&emacp->em0vtpid, 0x8100);
+		if (dev->rx_sg_skb) {
+			DBG2("%d: dropping partial rx packet" NL,
+			     dev->def->index);
+			++dev->estats.rx_dropped_error;
+			dev_kfree_skb(dev->rx_sg_skb);
+			dev->rx_sg_skb = NULL;
+		}
 
-	/* Init ring buffers */
-	emac_init_rings(fep->ndev);
+		dev->commac.rx_stopped = 0;
+		mal_enable_rx_channel(dev->mal, emacdata->mal_rx_chan);
+		emac_rx_enable(dev);
+		dev->rx_slot = 0;
+	}
+	return received;
 }
 
-static void emac_kick(struct ocp_enet_private *fep)
+/* BHs disabled */
+static int emac_peek_rx(void *param)
 {
-	emac_t *emacp = fep->emacp;
-	unsigned long emac_ier;
-
-	emac_ier = EMAC_ISR_PP | EMAC_ISR_BP | EMAC_ISR_RP |
-	    EMAC_ISR_SE | EMAC_ISR_PTLE | EMAC_ISR_ALE |
-	    EMAC_ISR_BFCS | EMAC_ISR_ORE | EMAC_ISR_IRE;
+	struct ocp_enet_private *dev = param;
+	return !(dev->rx_desc[dev->rx_slot].ctrl & MAL_RX_CTRL_EMPTY);
+}
 
-	out_be32(&emacp->em0iser, emac_ier);
+/* BHs disabled */
+static int emac_peek_rx_sg(void *param)
+{
+	struct ocp_enet_private *dev = param;
+	int slot = dev->rx_slot;
+	while (1) {
+		u16 ctrl = dev->rx_desc[slot].ctrl;
+		if (ctrl & MAL_RX_CTRL_EMPTY)
+			return 0;
+		else if (ctrl & MAL_RX_CTRL_LAST)
+			return 1;
 
-	/* enable all MAL transmit and receive channels */
-	mal_enable_tx_channels(fep->mal, fep->commac.tx_chan_mask);
-	mal_enable_rx_channels(fep->mal, fep->commac.rx_chan_mask);
+		slot = (slot + 1) % NUM_RX_BUFF;
 
-	/* set transmit and receive enable */
-	out_be32(&emacp->em0mr0, EMAC_M0_TXE | EMAC_M0_RXE);
+		/* I'm just being paranoid here :) */
+		if (unlikely(slot == dev->rx_slot))
+			return 0;
+	}
 }
 
-static void
-emac_start_link(struct ocp_enet_private *fep, struct ethtool_cmd *ep)
+/* Hard IRQ */
+static void emac_rxde(void *param)
 {
-	u32 advertise;
-	int autoneg;
-	int forced_speed;
-	int forced_duplex;
+	struct ocp_enet_private *dev = param;
+	++dev->estats.rx_stopped;
+	emac_rx_disable_async(dev);
+}
 
-	/* Default advertise */
-	advertise = ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full |
-	    ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full |
-	    ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full;
-	autoneg = fep->want_autoneg;
-	forced_speed = fep->phy_mii.speed;
-	forced_duplex = fep->phy_mii.duplex;
+/* Hard IRQ */
+static irqreturn_t emac_irq(int irq, void *dev_instance, struct pt_regs *regs)
+{
+	struct ocp_enet_private *dev = dev_instance;
+	struct emac_regs *p = dev->emacp;
+	struct ibm_emac_error_stats *st = &dev->estats;
+
+	u32 isr = in_be32(&p->isr);
+	out_be32(&p->isr, isr);
+
+	DBG("%d: isr = %08x" NL, dev->def->index, isr);
+
+	if (isr & EMAC_ISR_TXPE)
+		++st->tx_parity;
+	if (isr & EMAC_ISR_RXPE)
+		++st->rx_parity;
+	if (isr & EMAC_ISR_TXUE)
+		++st->tx_underrun;
+	if (isr & EMAC_ISR_RXOE)
+		++st->rx_fifo_overrun;
+	if (isr & EMAC_ISR_OVR)
+		++st->rx_overrun;
+	if (isr & EMAC_ISR_BP)
+		++st->rx_bad_packet;
+	if (isr & EMAC_ISR_RP)
+		++st->rx_runt_packet;
+	if (isr & EMAC_ISR_SE)
+		++st->rx_short_event;
+	if (isr & EMAC_ISR_ALE)
+		++st->rx_alignment_error;
+	if (isr & EMAC_ISR_BFCS)
+		++st->rx_bad_fcs;
+	if (isr & EMAC_ISR_PTLE)
+		++st->rx_packet_too_long;
+	if (isr & EMAC_ISR_ORE)
+		++st->rx_out_of_range;
+	if (isr & EMAC_ISR_IRE)
+		++st->rx_in_range;
+	if (isr & EMAC_ISR_SQE)
+		++st->tx_sqe;
+	if (isr & EMAC_ISR_TE)
+		++st->tx_errors;
 
-	/* Setup link parameters */
-	if (ep) {
-		if (ep->autoneg == AUTONEG_ENABLE) {
-			advertise = ep->advertising;
-			autoneg = 1;
-		} else {
-			autoneg = 0;
-			forced_speed = ep->speed;
-			forced_duplex = ep->duplex;
-		}
-	}
+	return IRQ_HANDLED;
+}
 
-	/* Configure PHY & start aneg */
-	fep->want_autoneg = autoneg;
-	if (autoneg) {
-		LINK_DEBUG(("%s: start link aneg, advertise: 0x%x\n",
-			    fep->ndev->name, advertise));
-		fep->phy_mii.def->ops->setup_aneg(&fep->phy_mii, advertise);
-	} else {
-		LINK_DEBUG(("%s: start link forced, speed: %d, duplex: %d\n",
-			    fep->ndev->name, forced_speed, forced_duplex));
-		fep->phy_mii.def->ops->setup_forced(&fep->phy_mii, forced_speed,
-						    forced_duplex);
-	}
-	fep->timer_ticks = 0;
-	mod_timer(&fep->link_timer, jiffies + HZ);
+static struct net_device_stats *emac_stats(struct net_device *ndev)
+{
+	struct ocp_enet_private *dev = ndev->priv;
+	struct ibm_emac_stats *st = &dev->stats;
+	struct ibm_emac_error_stats *est = &dev->estats;
+	struct net_device_stats *nst = &dev->nstats;
+
+	DBG2("%d: stats" NL, dev->def->index);
+
+	/* Compute "legacy" statistics */
+	local_irq_disable();
+	nst->rx_packets = (unsigned long)st->rx_packets;
+	nst->rx_bytes = (unsigned long)st->rx_bytes;
+	nst->tx_packets = (unsigned long)st->tx_packets;
+	nst->tx_bytes = (unsigned long)st->tx_bytes;
+	nst->rx_dropped = (unsigned long)(est->rx_dropped_oom +
+					  est->rx_dropped_error +
+					  est->rx_dropped_resize +
+					  est->rx_dropped_mtu);
+	nst->tx_dropped = (unsigned long)est->tx_dropped;
+
+	nst->rx_errors = (unsigned long)est->rx_bd_errors;
+	nst->rx_fifo_errors = (unsigned long)(est->rx_bd_overrun +
+					      est->rx_fifo_overrun +
+					      est->rx_overrun);
+	nst->rx_frame_errors = (unsigned long)(est->rx_bd_alignment_error +
+					       est->rx_alignment_error);
+	nst->rx_crc_errors = (unsigned long)(est->rx_bd_bad_fcs +
+					     est->rx_bad_fcs);
+	nst->rx_length_errors = (unsigned long)(est->rx_bd_runt_packet +
+						est->rx_bd_short_event +
+						est->rx_bd_packet_too_long +
+						est->rx_bd_out_of_range +
+						est->rx_bd_in_range +
+						est->rx_runt_packet +
+						est->rx_short_event +
+						est->rx_packet_too_long +
+						est->rx_out_of_range +
+						est->rx_in_range);
+
+	nst->tx_errors = (unsigned long)(est->tx_bd_errors + est->tx_errors);
+	nst->tx_fifo_errors = (unsigned long)(est->tx_bd_underrun +
+					      est->tx_underrun);
+	nst->tx_carrier_errors = (unsigned long)est->tx_bd_carrier_loss;
+	nst->collisions = (unsigned long)(est->tx_bd_excessive_deferral +
+					  est->tx_bd_excessive_collisions +
+					  est->tx_bd_late_collision +
+					  est->tx_bd_multple_collisions);
+	local_irq_enable();
+	return nst;
 }
 
-static void emac_link_timer(unsigned long data)
+static void emac_remove(struct ocp_device *ocpdev)
 {
-	struct ocp_enet_private *fep = (struct ocp_enet_private *)data;
-	int link;
+	struct ocp_enet_private *dev = ocp_get_drvdata(ocpdev);
 
-	if (fep->going_away)
-		return;
+	DBG("%d: remove" NL, dev->def->index);
 
-	spin_lock_irq(&fep->lock);
+	ocp_set_drvdata(ocpdev, 0);
+	unregister_netdev(dev->ndev);
 
-	link = fep->phy_mii.def->ops->poll_link(&fep->phy_mii);
-	LINK_DEBUG(("%s: poll_link: %d\n", fep->ndev->name, link));
+	tah_fini(dev->tah_dev);
+	rgmii_fini(dev->rgmii_dev, dev->rgmii_input);
+	zmii_fini(dev->zmii_dev, dev->zmii_input);
 
-	if (link == netif_carrier_ok(fep->ndev)) {
-		if (!link && fep->want_autoneg && (++fep->timer_ticks) > 10)
-			emac_start_link(fep, NULL);
-		goto out;
-	}
-	printk(KERN_INFO "%s: Link is %s\n", fep->ndev->name,
-	       link ? "Up" : "Down");
-	if (link) {
-		netif_carrier_on(fep->ndev);
-		/* Chip needs a full reset on config change. That sucks, so I
-		 * should ultimately move that to some tasklet to limit
-		 * latency peaks caused by this code
-		 */
-		emac_reset_configure(fep);
-		if (fep->opened)
-			emac_kick(fep);
-	} else {
-		fep->timer_ticks = 0;
-		netif_carrier_off(fep->ndev);
-	}
-      out:
-	mod_timer(&fep->link_timer, jiffies + HZ);
-	spin_unlock_irq(&fep->lock);
+	emac_dbg_register(dev->def->index, 0);
+
+	mal_unregister_commac(dev->mal, &dev->commac);
+	iounmap((void *)dev->emacp);
+	kfree(dev->ndev);
 }
 
-static void emac_set_multicast_list(struct net_device *dev)
-{
-	struct ocp_enet_private *fep = dev->priv;
+static struct mal_commac_ops emac_commac_ops = {
+	.poll_tx = &emac_poll_tx,
+	.poll_rx = &emac_poll_rx,
+	.peek_rx = &emac_peek_rx,
+	.rxde = &emac_rxde,
+};
 
-	spin_lock_irq(&fep->lock);
-	__emac_set_multicast_list(dev);
-	spin_unlock_irq(&fep->lock);
-}
+static struct mal_commac_ops emac_commac_sg_ops = {
+	.poll_tx = &emac_poll_tx,
+	.poll_rx = &emac_poll_rx,
+	.peek_rx = &emac_peek_rx_sg,
+	.rxde = &emac_rxde,
+};
 
-static int emac_get_settings(struct net_device *ndev, struct ethtool_cmd *cmd)
+/* Ethtool support */
+static int emac_ethtool_get_settings(struct net_device *ndev,
+				     struct ethtool_cmd *cmd)
 {
-	struct ocp_enet_private *fep = ndev->priv;
+	struct ocp_enet_private *dev = ndev->priv;
 
-	cmd->supported = fep->phy_mii.def->features;
+	cmd->supported = dev->phy.features;
 	cmd->port = PORT_MII;
-	cmd->transceiver = XCVR_EXTERNAL;
-	cmd->phy_address = fep->mii_phy_addr;
-	spin_lock_irq(&fep->lock);
-	cmd->autoneg = fep->want_autoneg;
-	cmd->speed = fep->phy_mii.speed;
-	cmd->duplex = fep->phy_mii.duplex;
-	spin_unlock_irq(&fep->lock);
+	cmd->phy_address = dev->phy.address;
+	cmd->transceiver =
+	    dev->phy.address >= 0 ? XCVR_EXTERNAL : XCVR_INTERNAL;
+
+	local_bh_disable();
+	cmd->advertising = dev->phy.advertising;
+	cmd->autoneg = dev->phy.autoneg;
+	cmd->speed = dev->phy.speed;
+	cmd->duplex = dev->phy.duplex;
+	local_bh_enable();
+
 	return 0;
 }
 
-static int emac_set_settings(struct net_device *ndev, struct ethtool_cmd *cmd)
+static int emac_ethtool_set_settings(struct net_device *ndev,
+				     struct ethtool_cmd *cmd)
 {
-	struct ocp_enet_private *fep = ndev->priv;
-	unsigned long features = fep->phy_mii.def->features;
+	struct ocp_enet_private *dev = ndev->priv;
+	u32 f = dev->phy.features;
 
-	if (!capable(CAP_NET_ADMIN))
-		return -EPERM;
+	DBG("%d: set_settings(%d, %d, %d, 0x%08x)" NL, dev->def->index,
+	    cmd->autoneg, cmd->speed, cmd->duplex, cmd->advertising);
 
+	/* Basic sanity checks */
+	if (dev->phy.address < 0)
+		return -EOPNOTSUPP;
 	if (cmd->autoneg != AUTONEG_ENABLE && cmd->autoneg != AUTONEG_DISABLE)
 		return -EINVAL;
 	if (cmd->autoneg == AUTONEG_ENABLE && cmd->advertising == 0)
 		return -EINVAL;
 	if (cmd->duplex != DUPLEX_HALF && cmd->duplex != DUPLEX_FULL)
 		return -EINVAL;
-	if (cmd->autoneg == AUTONEG_DISABLE)
+
+	if (cmd->autoneg == AUTONEG_DISABLE) {
 		switch (cmd->speed) {
 		case SPEED_10:
-			if (cmd->duplex == DUPLEX_HALF &&
-			    (features & SUPPORTED_10baseT_Half) == 0)
+			if (cmd->duplex == DUPLEX_HALF
+			    && !(f & SUPPORTED_10baseT_Half))
 				return -EINVAL;
-			if (cmd->duplex == DUPLEX_FULL &&
-			    (features & SUPPORTED_10baseT_Full) == 0)
+			if (cmd->duplex == DUPLEX_FULL
+			    && !(f & SUPPORTED_10baseT_Full))
 				return -EINVAL;
 			break;
 		case SPEED_100:
-			if (cmd->duplex == DUPLEX_HALF &&
-			    (features & SUPPORTED_100baseT_Half) == 0)
+			if (cmd->duplex == DUPLEX_HALF
+			    && !(f & SUPPORTED_100baseT_Half))
 				return -EINVAL;
-			if (cmd->duplex == DUPLEX_FULL &&
-			    (features & SUPPORTED_100baseT_Full) == 0)
+			if (cmd->duplex == DUPLEX_FULL
+			    && !(f & SUPPORTED_100baseT_Full))
 				return -EINVAL;
 			break;
 		case SPEED_1000:
-			if (cmd->duplex == DUPLEX_HALF &&
-			    (features & SUPPORTED_1000baseT_Half) == 0)
+			if (cmd->duplex == DUPLEX_HALF
+			    && !(f & SUPPORTED_1000baseT_Half))
 				return -EINVAL;
-			if (cmd->duplex == DUPLEX_FULL &&
-			    (features & SUPPORTED_1000baseT_Full) == 0)
+			if (cmd->duplex == DUPLEX_FULL
+			    && !(f & SUPPORTED_1000baseT_Full))
 				return -EINVAL;
 			break;
 		default:
 			return -EINVAL;
-	} else if ((features & SUPPORTED_Autoneg) == 0)
-		return -EINVAL;
-	spin_lock_irq(&fep->lock);
-	emac_start_link(fep, cmd);
-	spin_unlock_irq(&fep->lock);
+		}
+
+		local_bh_disable();
+		dev->phy.def->ops->setup_forced(&dev->phy, cmd->speed,
+						cmd->duplex);
+
+	} else {
+		if (!(f & SUPPORTED_Autoneg))
+			return -EINVAL;
+
+		local_bh_disable();
+		dev->phy.def->ops->setup_aneg(&dev->phy,
+					      (cmd->advertising & f) |
+					      (dev->phy.advertising &
+					       (ADVERTISED_Pause |
+						ADVERTISED_Asym_Pause)));
+	}
+	emac_force_link_update(dev);
+	local_bh_enable();
+
 	return 0;
 }
 
-static void
-emac_get_drvinfo(struct net_device *ndev, struct ethtool_drvinfo *info)
+static void emac_ethtool_get_ringparam(struct net_device *ndev,
+				       struct ethtool_ringparam *rp)
 {
-	struct ocp_enet_private *fep = ndev->priv;
-
-	strcpy(info->driver, DRV_NAME);
-	strcpy(info->version, DRV_VERSION);
-	info->fw_version[0] = '\0';
-	sprintf(info->bus_info, "IBM EMAC %d", fep->ocpdev->def->index);
-	info->regdump_len = 0;
+	rp->rx_max_pending = rp->rx_pending = NUM_RX_BUFF;
+	rp->tx_max_pending = rp->tx_pending = NUM_TX_BUFF;
 }
 
-static int emac_nway_reset(struct net_device *ndev)
+static void emac_ethtool_get_pauseparam(struct net_device *ndev,
+					struct ethtool_pauseparam *pp)
 {
-	struct ocp_enet_private *fep = ndev->priv;
+	struct ocp_enet_private *dev = ndev->priv;
+
+	local_bh_disable();
+	if ((dev->phy.features & SUPPORTED_Autoneg) &&
+	    (dev->phy.advertising & (ADVERTISED_Pause | ADVERTISED_Asym_Pause)))
+		pp->autoneg = 1;
+
+	if (dev->phy.duplex == DUPLEX_FULL) {
+		if (dev->phy.pause)
+			pp->rx_pause = pp->tx_pause = 1;
+		else if (dev->phy.asym_pause)
+			pp->tx_pause = 1;
+	}
+	local_bh_enable();
+}
 
-	if (!fep->want_autoneg)
-		return -EINVAL;
-	spin_lock_irq(&fep->lock);
-	emac_start_link(fep, NULL);
-	spin_unlock_irq(&fep->lock);
-	return 0;
+static u32 emac_ethtool_get_rx_csum(struct net_device *ndev)
+{
+	struct ocp_enet_private *dev = ndev->priv;
+	return dev->tah_dev != 0;
 }
 
-static u32 emac_get_link(struct net_device *ndev)
+static int emac_get_regs_len(struct ocp_enet_private *dev)
 {
-	return netif_carrier_ok(ndev);
+	return sizeof(struct emac_ethtool_regs_subhdr) + EMAC_ETHTOOL_REGS_SIZE;
 }
 
-static struct ethtool_ops emac_ethtool_ops = {
-	.get_settings = emac_get_settings,
-	.set_settings = emac_set_settings,
-	.get_drvinfo = emac_get_drvinfo,
-	.nway_reset = emac_nway_reset,
-	.get_link = emac_get_link
-};
+static int emac_ethtool_get_regs_len(struct net_device *ndev)
+{
+	struct ocp_enet_private *dev = ndev->priv;
+	return sizeof(struct emac_ethtool_regs_hdr) +
+	    emac_get_regs_len(dev) + mal_get_regs_len(dev->mal) +
+	    zmii_get_regs_len(dev->zmii_dev) +
+	    rgmii_get_regs_len(dev->rgmii_dev) +
+	    tah_get_regs_len(dev->tah_dev);
+}
 
-static int emac_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
+static void *emac_dump_regs(struct ocp_enet_private *dev, void *buf)
 {
-	struct ocp_enet_private *fep = dev->priv;
-	uint16_t *data = (uint16_t *) & rq->ifr_ifru;
+	struct emac_ethtool_regs_subhdr *hdr = buf;
 
-	switch (cmd) {
-	case SIOCGMIIPHY:
-		data[0] = fep->mii_phy_addr;
-		/* Fall through */
-	case SIOCGMIIREG:
-		data[3] = emac_phy_read(dev, fep->mii_phy_addr, data[1]);
-		return 0;
-	case SIOCSMIIREG:
-		if (!capable(CAP_NET_ADMIN))
-			return -EPERM;
+	hdr->version = EMAC_ETHTOOL_REGS_VER;
+	hdr->index = dev->def->index;
+	memcpy_fromio(hdr + 1, dev->emacp, EMAC_ETHTOOL_REGS_SIZE);
+	return ((void *)(hdr + 1) + EMAC_ETHTOOL_REGS_SIZE);
+}
 
-		emac_phy_write(dev, fep->mii_phy_addr, data[1], data[2]);
-		return 0;
-	default:
-		return -EOPNOTSUPP;
+static void emac_ethtool_get_regs(struct net_device *ndev,
+				  struct ethtool_regs *regs, void *buf)
+{
+	struct ocp_enet_private *dev = ndev->priv;
+	struct emac_ethtool_regs_hdr *hdr = buf;
+
+	hdr->components = 0;
+	buf = hdr + 1;
+
+	local_irq_disable();
+	buf = mal_dump_regs(dev->mal, buf);
+	buf = emac_dump_regs(dev, buf);
+	if (dev->zmii_dev) {
+		hdr->components |= EMAC_ETHTOOL_REGS_ZMII;
+		buf = zmii_dump_regs(dev->zmii_dev, buf);
+	}
+	if (dev->rgmii_dev) {
+		hdr->components |= EMAC_ETHTOOL_REGS_RGMII;
+		buf = rgmii_dump_regs(dev->rgmii_dev, buf);
 	}
+	if (dev->tah_dev) {
+		hdr->components |= EMAC_ETHTOOL_REGS_TAH;
+		buf = tah_dump_regs(dev->tah_dev, buf);
+	}
+	local_irq_enable();
 }
 
-static int emac_open(struct net_device *dev)
+static int emac_ethtool_nway_reset(struct net_device *ndev)
 {
-	struct ocp_enet_private *fep = dev->priv;
-	int rc;
+	struct ocp_enet_private *dev = ndev->priv;
+	int res = 0;
 
-	spin_lock_irq(&fep->lock);
+	DBG("%d: nway_reset" NL, dev->def->index);
 
-	fep->opened = 1;
-	netif_carrier_off(dev);
+	if (dev->phy.address < 0)
+		return -EOPNOTSUPP;
 
-	/* Reset & configure the chip */
-	emac_reset_configure(fep);
+	local_bh_disable();
+	if (!dev->phy.autoneg) {
+		res = -EINVAL;
+		goto out;
+	}
 
-	spin_unlock_irq(&fep->lock);
+	dev->phy.def->ops->setup_aneg(&dev->phy, dev->phy.advertising);
+	emac_force_link_update(dev);
 
-	/* Request our interrupt lines */
-	rc = request_irq(dev->irq, emac_mac_irq, 0, "IBM EMAC MAC", dev);
-	if (rc != 0) {
-		printk("dev->irq %d failed\n", dev->irq);
-		goto bail;
-	}
-	/* Kick the chip rx & tx channels into life */
-	spin_lock_irq(&fep->lock);
-	emac_kick(fep);
-	spin_unlock_irq(&fep->lock);
+      out:
+	local_bh_enable();
+	return res;
+}
 
-	netif_start_queue(dev);
-      bail:
-	return rc;
+static int emac_ethtool_get_stats_count(struct net_device *ndev)
+{
+	return EMAC_ETHTOOL_STATS_COUNT;
 }
 
-static int emac_close(struct net_device *dev)
+static void emac_ethtool_get_strings(struct net_device *ndev, u32 stringset,
+				     u8 * buf)
 {
-	struct ocp_enet_private *fep = dev->priv;
-	emac_t *emacp = fep->emacp;
+	if (stringset == ETH_SS_STATS)
+		memcpy(buf, &emac_stats_keys, sizeof(emac_stats_keys));
+}
 
-	/* XXX Stop IRQ emitting here */
-	spin_lock_irq(&fep->lock);
-	fep->opened = 0;
-	mal_disable_tx_channels(fep->mal, fep->commac.tx_chan_mask);
-	mal_disable_rx_channels(fep->mal, fep->commac.rx_chan_mask);
-	netif_carrier_off(dev);
-	netif_stop_queue(dev);
+static void emac_ethtool_get_ethtool_stats(struct net_device *ndev,
+					   struct ethtool_stats *estats,
+					   u64 * tmp_stats)
+{
+	struct ocp_enet_private *dev = ndev->priv;
+	local_irq_disable();
+	memcpy(tmp_stats, &dev->stats, sizeof(dev->stats));
+	tmp_stats += sizeof(dev->stats) / sizeof(u64);
+	memcpy(tmp_stats, &dev->estats, sizeof(dev->estats));
+	local_irq_enable();
+}
 
-	/*
-	 * Check for a link, some PHYs don't provide a clock if
-	 * no link is present.  Some EMACs will not come out of
-	 * soft reset without a PHY clock present.
-	 */
-	if (fep->phy_mii.def->ops->poll_link(&fep->phy_mii)) {
-		out_be32(&emacp->em0mr0, EMAC_M0_SRST);
-		udelay(10);
+static void emac_ethtool_get_drvinfo(struct net_device *ndev,
+				     struct ethtool_drvinfo *info)
+{
+	struct ocp_enet_private *dev = ndev->priv;
 
-		if (emacp->em0mr0 & EMAC_M0_SRST) {
-			/*not sure what to do here hopefully it clears before another open */
-			printk(KERN_ERR
-			       "%s: Phy SoftReset didn't clear, no link?\n",
-			       dev->name);
-		}
-	}
+	strcpy(info->driver, "ibm_emac");
+	strcpy(info->version, DRV_VERSION);
+	info->fw_version[0] = '\0';
+	sprintf(info->bus_info, "PPC 4xx EMAC %d", dev->def->index);
+	info->n_stats = emac_ethtool_get_stats_count(ndev);
+	info->regdump_len = emac_ethtool_get_regs_len(ndev);
+}
 
-	/* Free the irq's */
-	free_irq(dev->irq, dev);
+static struct ethtool_ops emac_ethtool_ops = {
+	.get_settings = emac_ethtool_get_settings,
+	.set_settings = emac_ethtool_set_settings,
+	.get_drvinfo = emac_ethtool_get_drvinfo,
 
-	spin_unlock_irq(&fep->lock);
+	.get_regs_len = emac_ethtool_get_regs_len,
+	.get_regs = emac_ethtool_get_regs,
 
-	return 0;
-}
+	.nway_reset = emac_ethtool_nway_reset,
 
-static void emac_remove(struct ocp_device *ocpdev)
-{
-	struct net_device *dev = ocp_get_drvdata(ocpdev);
-	struct ocp_enet_private *ep = dev->priv;
-
-	/* FIXME: locking, races, ... */
-	ep->going_away = 1;
-	ocp_set_drvdata(ocpdev, NULL);
-	if (ep->rgmii_dev)
-		emac_close_rgmii(ep->rgmii_dev);
-	if (ep->zmii_dev)
-		emac_close_zmii(ep->zmii_dev);
-
-	unregister_netdev(dev);
-	del_timer_sync(&ep->link_timer);
-	mal_unregister_commac(ep->mal, &ep->commac);
-	iounmap((void *)ep->emacp);
-	kfree(dev);
-}
-
-struct mal_commac_ops emac_commac_ops = {
-	.txeob = &emac_txeob_dev,
-	.txde = &emac_txde_dev,
-	.rxeob = &emac_rxeob_dev,
-	.rxde = &emac_rxde_dev,
+	.get_ringparam = emac_ethtool_get_ringparam,
+	.get_pauseparam = emac_ethtool_get_pauseparam,
+
+	.get_rx_csum = emac_ethtool_get_rx_csum,
+
+	.get_strings = emac_ethtool_get_strings,
+	.get_stats_count = emac_ethtool_get_stats_count,
+	.get_ethtool_stats = emac_ethtool_get_ethtool_stats,
+
+	.get_link = ethtool_op_get_link,
+	.get_tx_csum = ethtool_op_get_tx_csum,
+	.get_sg = ethtool_op_get_sg,
 };
 
-#ifdef CONFIG_NET_POLL_CONTROLLER
-static void emac_netpoll(struct net_device *ndev)
+static int emac_ioctl(struct net_device *ndev, struct ifreq *rq, int cmd)
 {
-	emac_rxeob_dev((void *)ndev, 0);
-	emac_txeob_dev((void *)ndev, 0);
+	struct ocp_enet_private *dev = ndev->priv;
+	uint16_t *data = (uint16_t *) & rq->ifr_ifru;
+
+	DBG("%d: ioctl %08x" NL, dev->def->index, cmd);
+
+	if (dev->phy.address < 0)
+		return -EOPNOTSUPP;
+
+	switch (cmd) {
+	case SIOCGMIIPHY:
+	case SIOCDEVPRIVATE:
+		data[0] = dev->phy.address;
+		/* Fall through */
+	case SIOCGMIIREG:
+	case SIOCDEVPRIVATE + 1:
+		data[3] = emac_mdio_read(ndev, dev->phy.address, data[1]);
+		return 0;
+
+	case SIOCSMIIREG:
+	case SIOCDEVPRIVATE + 2:
+		if (!capable(CAP_NET_ADMIN))
+			return -EPERM;
+		emac_mdio_write(ndev, dev->phy.address, data[1], data[2]);
+		return 0;
+	default:
+		return -EOPNOTSUPP;
+	}
 }
-#endif
 
-static int emac_init_device(struct ocp_device *ocpdev, struct ibm_ocp_mal *mal)
+static int __init emac_probe(struct ocp_device *ocpdev)
 {
-	int deferred_init = 0;
-	int rc = 0, i;
+	struct ocp_func_emac_data *emacdata = ocpdev->def->additions;
 	struct net_device *ndev;
-	struct ocp_enet_private *ep;
-	struct ocp_func_emac_data *emacdata;
-	int commac_reg = 0;
-	u32 phy_map;
+	struct ocp_device *maldev;
+	struct ocp_enet_private *dev;
+	int err, i;
+
+	DBG("%d: probe" NL, ocpdev->def->index);
 
-	emacdata = (struct ocp_func_emac_data *)ocpdev->def->additions;
 	if (!emacdata) {
 		printk(KERN_ERR "emac%d: Missing additional data!\n",
 		       ocpdev->def->index);
@@ -1738,304 +1936,312 @@ static int emac_init_device(struct ocp_device *ocpdev, struct ibm_ocp_mal *mal)
 
 	/* Allocate our net_device structure */
 	ndev = alloc_etherdev(sizeof(struct ocp_enet_private));
-	if (ndev == NULL) {
-		printk(KERN_ERR
-		       "emac%d: Could not allocate ethernet device.\n",
+	if (!ndev) {
+		printk(KERN_ERR "emac%d: could not allocate ethernet device!\n",
 		       ocpdev->def->index);
 		return -ENOMEM;
 	}
-	ep = ndev->priv;
-	ep->ndev = ndev;
-	ep->ocpdev = ocpdev;
-	ndev->irq = ocpdev->def->irq;
-	ep->wol_irq = emacdata->wol_irq;
-	if (emacdata->mdio_idx >= 0) {
-		if (emacdata->mdio_idx == ocpdev->def->index) {
-			/* Set the common MDIO net_device */
-			mdio_ndev = ndev;
-			deferred_init = 1;
-		}
-		ep->mdio_dev = mdio_ndev;
-	} else {
-		ep->mdio_dev = ndev;
-	}
+	dev = ndev->priv;
+	dev->ndev = ndev;
+	dev->ldev = &ocpdev->dev;
+	dev->def = ocpdev->def;
+	SET_MODULE_OWNER(ndev);
 
-	ocp_set_drvdata(ocpdev, ndev);
-
-	spin_lock_init(&ep->lock);
-
-	/* Fill out MAL informations and register commac */
-	ep->mal = mal;
-	ep->mal_tx_chan = emacdata->mal_tx_chan;
-	ep->mal_rx_chan = emacdata->mal_rx_chan;
-	ep->commac.ops = &emac_commac_ops;
-	ep->commac.dev = ndev;
-	ep->commac.tx_chan_mask = MAL_CHAN_MASK(ep->mal_tx_chan);
-	ep->commac.rx_chan_mask = MAL_CHAN_MASK(ep->mal_rx_chan);
-	rc = mal_register_commac(ep->mal, &ep->commac);
-	if (rc != 0)
-		goto bail;
-	commac_reg = 1;
-
-	/* Map our MMIOs */
-	ep->emacp = (emac_t *) ioremap(ocpdev->def->paddr, sizeof(emac_t));
-
-	/* Check if we need to attach to a ZMII */
-	if (emacdata->zmii_idx >= 0) {
-		ep->zmii_input = emacdata->zmii_mux;
-		ep->zmii_dev =
-		    ocp_find_device(OCP_ANY_ID, OCP_FUNC_ZMII,
-				    emacdata->zmii_idx);
-		if (ep->zmii_dev == NULL)
-			printk(KERN_WARNING
-			       "emac%d: ZMII %d requested but not found !\n",
-			       ocpdev->def->index, emacdata->zmii_idx);
-		else if ((rc =
-			  emac_init_zmii(ep->zmii_dev, ep->zmii_input,
-					 emacdata->phy_mode)) != 0)
-			goto bail;
+	/* Find MAL device we are connected to */
+	maldev =
+	    ocp_find_device(OCP_VENDOR_IBM, OCP_FUNC_MAL, emacdata->mal_idx);
+	if (!maldev) {
+		printk(KERN_ERR "emac%d: unknown mal%d device!\n",
+		       dev->def->index, emacdata->mal_idx);
+		err = -ENODEV;
+		goto out;
+	}
+	dev->mal = ocp_get_drvdata(maldev);
+	if (!dev->mal) {
+		printk(KERN_ERR "emac%d: mal%d hasn't been initialized yet!\n",
+		       dev->def->index, emacdata->mal_idx);
+		err = -ENODEV;
+		goto out;
 	}
 
-	/* Check if we need to attach to a RGMII */
-	if (emacdata->rgmii_idx >= 0) {
-		ep->rgmii_input = emacdata->rgmii_mux;
-		ep->rgmii_dev =
-		    ocp_find_device(OCP_ANY_ID, OCP_FUNC_RGMII,
-				    emacdata->rgmii_idx);
-		if (ep->rgmii_dev == NULL)
-			printk(KERN_WARNING
-			       "emac%d: RGMII %d requested but not found !\n",
-			       ocpdev->def->index, emacdata->rgmii_idx);
-		else if ((rc =
-			  emac_init_rgmii(ep->rgmii_dev, ep->rgmii_input,
-					  emacdata->phy_mode)) != 0)
-			goto bail;
+	/* Register with MAL */
+	dev->commac.ops = &emac_commac_ops;
+	dev->commac.dev = dev;
+	dev->commac.tx_chan_mask = MAL_CHAN_MASK(emacdata->mal_tx_chan);
+	dev->commac.rx_chan_mask = MAL_CHAN_MASK(emacdata->mal_rx_chan);
+	err = mal_register_commac(dev->mal, &dev->commac);
+	if (err) {
+		printk(KERN_ERR "emac%d: failed to register with mal%d!\n",
+		       dev->def->index, emacdata->mal_idx);
+		goto out;
+	}
+	dev->rx_skb_size = emac_rx_skb_size(ndev->mtu);
+	dev->rx_sync_size = emac_rx_sync_size(ndev->mtu);
+
+	/* Get pointers to BD rings */
+	dev->tx_desc =
+	    dev->mal->bd_virt + mal_tx_bd_offset(dev->mal,
+						 emacdata->mal_tx_chan);
+	dev->rx_desc =
+	    dev->mal->bd_virt + mal_rx_bd_offset(dev->mal,
+						 emacdata->mal_rx_chan);
+
+	DBG("%d: tx_desc %p" NL, ocpdev->def->index, dev->tx_desc);
+	DBG("%d: rx_desc %p" NL, ocpdev->def->index, dev->rx_desc);
+
+	/* Clean rings */
+	memset(dev->tx_desc, 0, NUM_TX_BUFF * sizeof(struct mal_descriptor));
+	memset(dev->rx_desc, 0, NUM_RX_BUFF * sizeof(struct mal_descriptor));
+
+	/* If we depend on another EMAC for MDIO, check whether it was probed already */
+	if (emacdata->mdio_idx >= 0 && emacdata->mdio_idx != ocpdev->def->index) {
+		struct ocp_device *mdiodev =
+		    ocp_find_device(OCP_VENDOR_IBM, OCP_FUNC_EMAC,
+				    emacdata->mdio_idx);
+		if (!mdiodev) {
+			printk(KERN_ERR "emac%d: unknown emac%d device!\n",
+			       dev->def->index, emacdata->mdio_idx);
+			err = -ENODEV;
+			goto out2;
+		}
+		dev->mdio_dev = ocp_get_drvdata(mdiodev);
+		if (!dev->mdio_dev) {
+			printk(KERN_ERR
+			       "emac%d: emac%d hasn't been initialized yet!\n",
+			       dev->def->index, emacdata->mdio_idx);
+			err = -ENODEV;
+			goto out2;
+		}
 	}
 
-	/* Check if we need to attach to a TAH */
-	if (emacdata->tah_idx >= 0) {
-		ep->tah_dev =
-		    ocp_find_device(OCP_ANY_ID, OCP_FUNC_TAH,
-				    emacdata->tah_idx);
-		if (ep->tah_dev == NULL)
-			printk(KERN_WARNING
-			       "emac%d: TAH %d requested but not found !\n",
-			       ocpdev->def->index, emacdata->tah_idx);
-		else if ((rc = emac_init_tah(ep)) != 0)
-			goto bail;
+	/* Attach to ZMII, if needed */
+	if ((err = zmii_attach(dev)) != 0)
+		goto out2;
+
+	/* Attach to RGMII, if needed */
+	if ((err = rgmii_attach(dev)) != 0)
+		goto out3;
+
+	/* Attach to TAH, if needed */
+	if ((err = tah_attach(dev)) != 0)
+		goto out4;
+
+	/* Map EMAC regs */
+	dev->emacp =
+	    (struct emac_regs *)ioremap(dev->def->paddr,
+					sizeof(struct emac_regs));
+	if (!dev->emacp) {
+		printk(KERN_ERR "emac%d: could not ioremap device registers!\n",
+		       dev->def->index);
+		err = -ENOMEM;
+		goto out5;
 	}
 
-	if (deferred_init) {
-		if (!list_empty(&emac_init_list)) {
-			struct list_head *entry;
-			struct emac_def_dev *ddev;
+	/* Fill in MAC address */
+	for (i = 0; i < 6; ++i)
+		ndev->dev_addr[i] = emacdata->mac_addr[i];
 
-			list_for_each(entry, &emac_init_list) {
-				ddev =
-				    list_entry(entry, struct emac_def_dev,
-					       link);
-				emac_init_device(ddev->ocpdev, ddev->mal);
-			}
+	/* Set some link defaults before we can find out real parameters */
+	dev->phy.speed = SPEED_100;
+	dev->phy.duplex = DUPLEX_FULL;
+	dev->phy.autoneg = AUTONEG_DISABLE;
+	dev->phy.pause = dev->phy.asym_pause = 0;
+	init_timer(&dev->link_timer);
+	dev->link_timer.function = emac_link_timer;
+	dev->link_timer.data = (unsigned long)dev;
+
+	/* Find PHY if any */
+	dev->phy.dev = ndev;
+	dev->phy.mode = emacdata->phy_mode;
+	if (emacdata->phy_map != 0xffffffff) {
+		u32 phy_map = emacdata->phy_map | busy_phy_map;
+		u32 adv;
+
+		DBG("%d: PHY maps %08x %08x" NL, dev->def->index,
+		    emacdata->phy_map, busy_phy_map);
+
+		EMAC_RX_CLK_TX(dev->def->index);
+
+		dev->phy.mdio_read = emac_mdio_read;
+		dev->phy.mdio_write = emac_mdio_write;
+
+		/* Configure EMAC with defaults so we can at least use MDIO
+		 * This is needed mostly for 440GX
+		 */
+		if (emac_phy_gpcs(dev->phy.mode)) {
+			/* XXX
+			 * Make GPCS PHY address equal to EMAC index.
+			 * We probably should take into account busy_phy_map
+			 * and/or phy_map here.
+			 */
+			dev->phy.address = dev->def->index;
 		}
-	}
+		
+		emac_configure(dev);
+
+		for (i = 0; i < 0x20; phy_map >>= 1, ++i)
+			if (!(phy_map & 1)) {
+				int r;
+				busy_phy_map |= 1 << i;
 
-	/* Init link monitoring timer */
-	init_timer(&ep->link_timer);
-	ep->link_timer.function = emac_link_timer;
-	ep->link_timer.data = (unsigned long)ep;
-	ep->timer_ticks = 0;
-
-	/* Fill up the mii_phy structure */
-	ep->phy_mii.dev = ndev;
-	ep->phy_mii.mdio_read = emac_phy_read;
-	ep->phy_mii.mdio_write = emac_phy_write;
-	ep->phy_mii.mode = emacdata->phy_mode;
-
-	/* Find PHY */
-	phy_map = emacdata->phy_map | busy_phy_map;
-	for (i = 0; i <= 0x1f; i++, phy_map >>= 1) {
-		if ((phy_map & 0x1) == 0) {
-			int val = emac_phy_read(ndev, i, MII_BMCR);
-			if (val != 0xffff && val != -1)
-				break;
+				/* Quick check if there is a PHY at the address */
+				r = emac_mdio_read(dev->ndev, i, MII_BMCR);
+				if (r == 0xffff || r < 0)
+					continue;
+				if (!mii_phy_probe(&dev->phy, i))
+					break;
+			}
+		if (i == 0x20) {
+			printk(KERN_WARNING "emac%d: can't find PHY!\n",
+			       dev->def->index);
+			goto out6;
 		}
-	}
-	if (i == 0x20) {
-		printk(KERN_WARNING "emac%d: Can't find PHY.\n",
-		       ocpdev->def->index);
-		rc = -ENODEV;
-		goto bail;
-	}
-	busy_phy_map |= 1 << i;
-	ep->mii_phy_addr = i;
-	rc = mii_phy_probe(&ep->phy_mii, i);
-	if (rc) {
-		printk(KERN_WARNING "emac%d: Failed to probe PHY type.\n",
-		       ocpdev->def->index);
-		rc = -ENODEV;
-		goto bail;
-	}
-	
-	/* Disable any PHY features not supported by the platform */
-	ep->phy_mii.def->features &= ~emacdata->phy_feat_exc;
 
-	/* Setup initial PHY config & startup aneg */
-	if (ep->phy_mii.def->ops->init)
-		ep->phy_mii.def->ops->init(&ep->phy_mii);
-	netif_carrier_off(ndev);
-	if (ep->phy_mii.def->features & SUPPORTED_Autoneg)
-		ep->want_autoneg = 1;
-	else {
-		ep->want_autoneg = 0;
+		/* Init PHY */
+		if (dev->phy.def->ops->init)
+			dev->phy.def->ops->init(&dev->phy);
 		
-		/* Select highest supported speed/duplex */
-		if (ep->phy_mii.def->features & SUPPORTED_1000baseT_Full) {
-			ep->phy_mii.speed = SPEED_1000;
-			ep->phy_mii.duplex = DUPLEX_FULL;
-		} else if (ep->phy_mii.def->features & 
-			   SUPPORTED_1000baseT_Half) {
-			ep->phy_mii.speed = SPEED_1000;
-			ep->phy_mii.duplex = DUPLEX_HALF;
-		} else if (ep->phy_mii.def->features & 
-			   SUPPORTED_100baseT_Full) {
-			ep->phy_mii.speed = SPEED_100;
-			ep->phy_mii.duplex = DUPLEX_FULL;
-		} else if (ep->phy_mii.def->features & 
-			   SUPPORTED_100baseT_Half) {
-			ep->phy_mii.speed = SPEED_100;
-			ep->phy_mii.duplex = DUPLEX_HALF;
-		} else if (ep->phy_mii.def->features & 
-			   SUPPORTED_10baseT_Full) {
-			ep->phy_mii.speed = SPEED_10;
-			ep->phy_mii.duplex = DUPLEX_FULL;
+		/* Disable any PHY features not supported by the platform */
+		dev->phy.def->features &= ~emacdata->phy_feat_exc;
+
+		/* Setup initial link parameters */
+		if (dev->phy.features & SUPPORTED_Autoneg) {
+			adv = dev->phy.features;
+#if !defined(CONFIG_40x)
+			adv |= ADVERTISED_Pause | ADVERTISED_Asym_Pause;
+#endif
+			/* Restart autonegotiation */
+			dev->phy.def->ops->setup_aneg(&dev->phy, adv);
 		} else {
-			ep->phy_mii.speed = SPEED_10;
-			ep->phy_mii.duplex = DUPLEX_HALF;
+			u32 f = dev->phy.def->features;
+			int speed = SPEED_10, fd = DUPLEX_HALF;
+
+			/* Select highest supported speed/duplex */
+			if (f & SUPPORTED_1000baseT_Full) {
+				speed = SPEED_1000;
+				fd = DUPLEX_FULL;
+			} else if (f & SUPPORTED_1000baseT_Half)
+				speed = SPEED_1000;
+			else if (f & SUPPORTED_100baseT_Full) {
+				speed = SPEED_100;
+				fd = DUPLEX_FULL;
+			} else if (f & SUPPORTED_100baseT_Half)
+				speed = SPEED_100;
+			else if (f & SUPPORTED_10baseT_Full)
+				fd = DUPLEX_FULL;
+
+			/* Force link parameters */
+			dev->phy.def->ops->setup_forced(&dev->phy, speed, fd);
 		}
-	}
-	emac_start_link(ep, NULL);
+	} else {
+		emac_reset(dev);
 
-	/* read the MAC Address */
-	for (i = 0; i < 6; i++)
-		ndev->dev_addr[i] = emacdata->mac_addr[i];
+		/* PHY-less configuration.
+		 * XXX I probably should move these settings to emacdata
+		 */
+		dev->phy.address = -1;
+		dev->phy.features = SUPPORTED_100baseT_Full | SUPPORTED_MII;
+		dev->phy.pause = 1;
+	}
 
 	/* Fill in the driver function table */
 	ndev->open = &emac_open;
-	ndev->hard_start_xmit = &emac_start_xmit;
+	if (dev->tah_dev) {
+		ndev->hard_start_xmit = &emac_start_xmit_sg;
+		ndev->features |= NETIF_F_IP_CSUM | NETIF_F_SG;
+	} else
+		ndev->hard_start_xmit = &emac_start_xmit;
+	ndev->tx_timeout = &emac_full_tx_reset;
+	ndev->watchdog_timeo = 5 * HZ;
 	ndev->stop = &emac_close;
 	ndev->get_stats = &emac_stats;
-	if (emacdata->jumbo)
-		ndev->change_mtu = &emac_change_mtu;
-	ndev->set_mac_address = &emac_set_mac_address;
 	ndev->set_multicast_list = &emac_set_multicast_list;
 	ndev->do_ioctl = &emac_ioctl;
+	if (emac_phy_supports_gige(emacdata->phy_mode)) {
+		ndev->change_mtu = &emac_change_mtu;
+		dev->commac.ops = &emac_commac_sg_ops;
+	}
 	SET_ETHTOOL_OPS(ndev, &emac_ethtool_ops);
-	if (emacdata->tah_idx >= 0)
-		ndev->features = NETIF_F_IP_CSUM | NETIF_F_SG;
-#ifdef CONFIG_NET_POLL_CONTROLLER
-	ndev->poll_controller = emac_netpoll;
-#endif
 
-	SET_MODULE_OWNER(ndev);
+	netif_carrier_off(ndev);
+	netif_stop_queue(ndev);
+
+	err = register_netdev(ndev);
+	if (err) {
+		printk(KERN_ERR "emac%d: failed to register net device (%d)!\n",
+		       dev->def->index, err);
+		goto out6;
+	}
 
-	rc = register_netdev(ndev);
-	if (rc != 0)
-		goto bail;
+	ocp_set_drvdata(ocpdev, dev);
 
-	printk("%s: IBM emac, MAC %02x:%02x:%02x:%02x:%02x:%02x\n",
-	       ndev->name,
+	printk("%s: emac%d, MAC %02x:%02x:%02x:%02x:%02x:%02x\n",
+	       ndev->name, dev->def->index,
 	       ndev->dev_addr[0], ndev->dev_addr[1], ndev->dev_addr[2],
 	       ndev->dev_addr[3], ndev->dev_addr[4], ndev->dev_addr[5]);
-	printk(KERN_INFO "%s: Found %s PHY (0x%02x)\n",
-	       ndev->name, ep->phy_mii.def->name, ep->mii_phy_addr);
-
-      bail:
-	if (rc && commac_reg)
-		mal_unregister_commac(ep->mal, &ep->commac);
-	if (rc && ndev)
-		kfree(ndev);
-
-	return rc;
-}
-
-static int emac_probe(struct ocp_device *ocpdev)
-{
-	struct ocp_device *maldev;
-	struct ibm_ocp_mal *mal;
-	struct ocp_func_emac_data *emacdata;
-
-	emacdata = (struct ocp_func_emac_data *)ocpdev->def->additions;
-	if (emacdata == NULL) {
-		printk(KERN_ERR "emac%d: Missing additional datas !\n",
-		       ocpdev->def->index);
-		return -ENODEV;
-	}
 
-	/* Get the MAL device  */
-	maldev = ocp_find_device(OCP_ANY_ID, OCP_FUNC_MAL, emacdata->mal_idx);
-	if (maldev == NULL) {
-		printk("No maldev\n");
-		return -ENODEV;
-	}
-	/*
-	 * Get MAL driver data, it must be here due to link order.
-	 * When the driver is modularized, symbol dependencies will
-	 * ensure the MAL driver is already present if built as a
-	 * module.
-	 */
-	mal = (struct ibm_ocp_mal *)ocp_get_drvdata(maldev);
-	if (mal == NULL) {
-		printk("No maldrv\n");
-		return -ENODEV;
-	}
+	if (dev->phy.address >= 0)
+		printk("%s: found %s PHY (0x%02x)\n", ndev->name,
+		       dev->phy.def->name, dev->phy.address);
 
-	/* If we depend on another EMAC for MDIO, wait for it to show up */
-	if (emacdata->mdio_idx >= 0 &&
-	    (emacdata->mdio_idx != ocpdev->def->index) && !mdio_ndev) {
-		struct emac_def_dev *ddev;
-		/* Add this index to the deferred init table */
-		ddev = kmalloc(sizeof(struct emac_def_dev), GFP_KERNEL);
-		ddev->ocpdev = ocpdev;
-		ddev->mal = mal;
-		list_add_tail(&ddev->link, &emac_init_list);
-	} else {
-		emac_init_device(ocpdev, mal);
-	}
+	emac_dbg_register(dev->def->index, dev);
 
 	return 0;
+      out6:
+	iounmap((void *)dev->emacp);
+      out5:
+	tah_fini(dev->tah_dev);
+      out4:
+	rgmii_fini(dev->rgmii_dev, dev->rgmii_input);
+      out3:
+	zmii_fini(dev->zmii_dev, dev->zmii_input);
+      out2:
+	mal_unregister_commac(dev->mal, &dev->commac);
+      out:
+	kfree(ndev);
+	return err;
 }
 
-/* Structure for a device driver */
 static struct ocp_device_id emac_ids[] = {
-	{.vendor = OCP_ANY_ID,.function = OCP_FUNC_EMAC},
-	{.vendor = OCP_VENDOR_INVALID}
+	{ .vendor = OCP_VENDOR_IBM, .function = OCP_FUNC_EMAC },
+	{ .vendor = OCP_VENDOR_INVALID}
 };
 
 static struct ocp_driver emac_driver = {
 	.name = "emac",
 	.id_table = emac_ids,
-
 	.probe = emac_probe,
 	.remove = emac_remove,
 };
 
 static int __init emac_init(void)
 {
-	printk(KERN_INFO DRV_NAME ": " DRV_DESC ", version " DRV_VERSION "\n");
-	printk(KERN_INFO "Maintained by " DRV_AUTHOR "\n");
+	printk(KERN_INFO DRV_DESC ", version " DRV_VERSION "\n");
+
+	DBG(": init" NL);
 
-	if (skb_res > 2) {
-		printk(KERN_WARNING "Invalid skb_res: %d, cropping to 2\n",
-		       skb_res);
-		skb_res = 2;
+	if (mal_init())
+		return -ENODEV;
+
+	EMAC_CLK_INTERNAL;
+	if (ocp_register_driver(&emac_driver)) {
+		EMAC_CLK_EXTERNAL;
+		ocp_unregister_driver(&emac_driver);
+		mal_exit();
+		return -ENODEV;
 	}
+	EMAC_CLK_EXTERNAL;
 
-	return ocp_register_driver(&emac_driver);
+	emac_init_debug();
+	return 0;
 }
 
 static void __exit emac_exit(void)
 {
+	DBG(": exit" NL);
 	ocp_unregister_driver(&emac_driver);
+	mal_exit();
+	emac_fini_debug();
 }
 
 module_init(emac_init);
diff --git a/drivers/net/ibm_emac/ibm_emac_core.h b/drivers/net/ibm_emac/ibm_emac_core.h
index 97e6e1ea8c89..e9b44d030ac3 100644
--- a/drivers/net/ibm_emac/ibm_emac_core.h
+++ b/drivers/net/ibm_emac/ibm_emac_core.h
@@ -1,146 +1,221 @@
 /*
- * ibm_emac_core.h
+ * drivers/net/ibm_emac/ibm_emac_core.h
  *
- * Ethernet driver for the built in ethernet on the IBM 405 PowerPC
- * processor.
+ * Driver for PowerPC 4xx on-chip ethernet controller.
  *
- *      Armin Kuster akuster@mvista.com
- *      Sept, 2001
+ * Copyright (c) 2004, 2005 Zultys Technologies.
+ * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
  *
- *      Orignial driver
- *         Johnnie Peters
- *         jpeters@mvista.com
- *
- * Copyright 2000 MontaVista Softare Inc.
+ * Based on original work by
+ *      Armin Kuster <akuster@mvista.com>
+ * 	Johnnie Peters <jpeters@mvista.com>
+ *      Copyright 2000, 2001 MontaVista Softare Inc.
  *
  * This program is free software; you can redistribute  it and/or modify it
  * under  the terms of  the GNU General  Public License as published by the
  * Free Software Foundation;  either version 2 of the  License, or (at your
  * option) any later version.
+ *
  */
+#ifndef __IBM_EMAC_CORE_H_
+#define __IBM_EMAC_CORE_H_
 
-#ifndef _IBM_EMAC_CORE_H_
-#define _IBM_EMAC_CORE_H_
-
+#include <linux/config.h>
 #include <linux/netdevice.h>
+#include <linux/dma-mapping.h>
 #include <asm/ocp.h>
-#include <asm/mmu.h>		/* For phys_addr_t */
 
 #include "ibm_emac.h"
 #include "ibm_emac_phy.h"
-#include "ibm_emac_rgmii.h"
 #include "ibm_emac_zmii.h"
+#include "ibm_emac_rgmii.h"
 #include "ibm_emac_mal.h"
 #include "ibm_emac_tah.h"
 
-#ifndef CONFIG_IBM_EMAC_TXB
-#define NUM_TX_BUFF		64
-#define NUM_RX_BUFF		64
-#else
-#define NUM_TX_BUFF		CONFIG_IBM_EMAC_TXB
-#define NUM_RX_BUFF		CONFIG_IBM_EMAC_RXB
-#endif
+#define NUM_TX_BUFF			CONFIG_IBM_EMAC_TXB
+#define NUM_RX_BUFF			CONFIG_IBM_EMAC_RXB
 
-/* This does 16 byte alignment, exactly what we need.
- * The packet length includes FCS, but we don't want to
- * include that when passing upstream as it messes up
- * bridging applications.
- */
-#ifndef CONFIG_IBM_EMAC_SKBRES
-#define SKB_RES 2
-#else
-#define SKB_RES CONFIG_IBM_EMAC_SKBRES
+/* Simple sanity check */
+#if NUM_TX_BUFF > 256 || NUM_RX_BUFF > 256
+#error Invalid number of buffer descriptors (greater than 256)
 #endif
 
-/* Note about alignement. alloc_skb() returns a cache line
- * aligned buffer. However, dev_alloc_skb() will add 16 more
- * bytes and "reserve" them, so our buffer will actually end
- * on a half cache line. What we do is to use directly
- * alloc_skb, allocate 16 more bytes to match the total amount
- * allocated by dev_alloc_skb(), but we don't reserve.
+// XXX
+#define EMAC_MIN_MTU			46
+#define EMAC_MAX_MTU			9000
+
+/* Maximum L2 header length (VLAN tagged, no FCS) */
+#define EMAC_MTU_OVERHEAD		(6 * 2 + 2 + 4)
+
+/* RX BD size for the given MTU */
+static inline int emac_rx_size(int mtu)
+{
+	if (mtu > ETH_DATA_LEN)
+		return MAL_MAX_RX_SIZE;
+	else
+		return mal_rx_size(ETH_DATA_LEN + EMAC_MTU_OVERHEAD);
+}
+
+#define EMAC_DMA_ALIGN(x)		ALIGN((x), dma_get_cache_alignment())
+
+#define EMAC_RX_SKB_HEADROOM		\
+	EMAC_DMA_ALIGN(CONFIG_IBM_EMAC_RX_SKB_HEADROOM)
+
+/* Size of RX skb for the given MTU */
+static inline int emac_rx_skb_size(int mtu)
+{
+	int size = max(mtu + EMAC_MTU_OVERHEAD, emac_rx_size(mtu));
+	return EMAC_DMA_ALIGN(size + 2) + EMAC_RX_SKB_HEADROOM;
+}
+
+/* RX DMA sync size */
+static inline int emac_rx_sync_size(int mtu)
+{
+	return EMAC_DMA_ALIGN(emac_rx_size(mtu) + 2);
+}
+
+/* Driver statistcs is split into two parts to make it more cache friendly:
+ *   - normal statistics (packet count, etc)
+ *   - error statistics
+ *
+ * When statistics is requested by ethtool, these parts are concatenated,
+ * normal one goes first.
+ *
+ * Please, keep these structures in sync with emac_stats_keys.
  */
-#define MAX_NUM_BUF_DESC	255
-#define DESC_BUF_SIZE		4080	/* max 4096-16 */
-#define DESC_BUF_SIZE_REG	(DESC_BUF_SIZE / 16)
-
-/* Transmitter timeout. */
-#define TX_TIMEOUT		(2*HZ)
-
-/* MDIO latency delay */
-#define MDIO_DELAY		250
-
-/* Power managment shift registers */
-#define IBM_CPM_EMMII	0	/* Shift value for MII */
-#define IBM_CPM_EMRX	1	/* Shift value for recv */
-#define IBM_CPM_EMTX	2	/* Shift value for MAC */
-#define IBM_CPM_EMAC(x)	(((x)>>IBM_CPM_EMMII) | ((x)>>IBM_CPM_EMRX) | ((x)>>IBM_CPM_EMTX))
-
-#define ENET_HEADER_SIZE	14
-#define ENET_FCS_SIZE		4
-#define ENET_DEF_MTU_SIZE	1500
-#define ENET_DEF_BUF_SIZE	(ENET_DEF_MTU_SIZE + ENET_HEADER_SIZE + ENET_FCS_SIZE)
-#define EMAC_MIN_FRAME		64
-#define EMAC_MAX_FRAME		9018
-#define EMAC_MIN_MTU		(EMAC_MIN_FRAME - ENET_HEADER_SIZE - ENET_FCS_SIZE)
-#define EMAC_MAX_MTU		(EMAC_MAX_FRAME - ENET_HEADER_SIZE - ENET_FCS_SIZE)
-
-#ifdef CONFIG_IBM_EMAC_ERRMSG
-void emac_serr_dump_0(struct net_device *dev);
-void emac_serr_dump_1(struct net_device *dev);
-void emac_err_dump(struct net_device *dev, int em0isr);
-void emac_phy_dump(struct net_device *);
-void emac_desc_dump(struct net_device *);
-void emac_mac_dump(struct net_device *);
-void emac_mal_dump(struct net_device *);
-#else
-#define emac_serr_dump_0(dev) do { } while (0)
-#define emac_serr_dump_1(dev) do { } while (0)
-#define emac_err_dump(dev,x) do { } while (0)
-#define emac_phy_dump(dev) do { } while (0)
-#define emac_desc_dump(dev) do { } while (0)
-#define emac_mac_dump(dev) do { } while (0)
-#define emac_mal_dump(dev) do { } while (0)
-#endif
+
+/* Normal TX/RX Statistics */
+struct ibm_emac_stats {
+	u64 rx_packets;
+	u64 rx_bytes;
+	u64 tx_packets;
+	u64 tx_bytes;
+	u64 rx_packets_csum;
+	u64 tx_packets_csum;
+};
+
+/* Error statistics */
+struct ibm_emac_error_stats {
+	u64 tx_undo;
+
+	/* Software RX Errors */
+	u64 rx_dropped_stack;
+	u64 rx_dropped_oom;
+	u64 rx_dropped_error;
+	u64 rx_dropped_resize;
+	u64 rx_dropped_mtu;
+	u64 rx_stopped;
+	/* BD reported RX errors */
+	u64 rx_bd_errors;
+	u64 rx_bd_overrun;
+	u64 rx_bd_bad_packet;
+	u64 rx_bd_runt_packet;
+	u64 rx_bd_short_event;
+	u64 rx_bd_alignment_error;
+	u64 rx_bd_bad_fcs;
+	u64 rx_bd_packet_too_long;
+	u64 rx_bd_out_of_range;
+	u64 rx_bd_in_range;
+	/* EMAC IRQ reported RX errors */
+	u64 rx_parity;
+	u64 rx_fifo_overrun;
+	u64 rx_overrun;
+	u64 rx_bad_packet;
+	u64 rx_runt_packet;
+	u64 rx_short_event;
+	u64 rx_alignment_error;
+	u64 rx_bad_fcs;
+	u64 rx_packet_too_long;
+	u64 rx_out_of_range;
+	u64 rx_in_range;
+
+	/* Software TX Errors */
+	u64 tx_dropped;
+	/* BD reported TX errors */
+	u64 tx_bd_errors;
+	u64 tx_bd_bad_fcs;
+	u64 tx_bd_carrier_loss;
+	u64 tx_bd_excessive_deferral;
+	u64 tx_bd_excessive_collisions;
+	u64 tx_bd_late_collision;
+	u64 tx_bd_multple_collisions;
+	u64 tx_bd_single_collision;
+	u64 tx_bd_underrun;
+	u64 tx_bd_sqe;
+	/* EMAC IRQ reported TX errors */
+	u64 tx_parity;
+	u64 tx_underrun;
+	u64 tx_sqe;
+	u64 tx_errors;
+};
+
+#define EMAC_ETHTOOL_STATS_COUNT	((sizeof(struct ibm_emac_stats) + \
+					  sizeof(struct ibm_emac_error_stats)) \
+					 / sizeof(u64))
 
 struct ocp_enet_private {
-	struct sk_buff *tx_skb[NUM_TX_BUFF];
-	struct sk_buff *rx_skb[NUM_RX_BUFF];
-	struct mal_descriptor *tx_desc;
-	struct mal_descriptor *rx_desc;
-	struct mal_descriptor *rx_dirty;
-	struct net_device_stats stats;
-	int tx_cnt;
-	int rx_slot;
-	int dirty_rx;
-	int tx_slot;
-	int ack_slot;
-	int rx_buffer_size;
-
-	struct mii_phy phy_mii;
-	int mii_phy_addr;
-	int want_autoneg;
-	int timer_ticks;
-	struct timer_list link_timer;
-	struct net_device *mdio_dev;
-
-	struct ocp_device *rgmii_dev;
-	int rgmii_input;
-
-	struct ocp_device *zmii_dev;
-	int zmii_input;
-
-	struct ibm_ocp_mal *mal;
-	int mal_tx_chan, mal_rx_chan;
-	struct mal_commac commac;
-
-	struct ocp_device *tah_dev;
-
-	int opened;
-	int going_away;
-	int wol_irq;
-	emac_t *emacp;
-	struct ocp_device *ocpdev;
-	struct net_device *ndev;
-	spinlock_t lock;
+	struct net_device		*ndev;		/* 0 */
+	struct emac_regs		*emacp;
+	
+	struct mal_descriptor		*tx_desc;
+	int				tx_cnt;
+	int				tx_slot;
+	int				ack_slot;
+
+	struct mal_descriptor		*rx_desc;
+	int				rx_slot;
+	struct sk_buff			*rx_sg_skb;	/* 1 */
+	int 				rx_skb_size;
+	int				rx_sync_size;
+
+	struct ibm_emac_stats 		stats;
+	struct ocp_device		*tah_dev;
+
+	struct ibm_ocp_mal		*mal;
+	struct mal_commac		commac;
+
+	struct sk_buff			*tx_skb[NUM_TX_BUFF];
+	struct sk_buff			*rx_skb[NUM_RX_BUFF];
+
+	struct ocp_device		*zmii_dev;
+	int				zmii_input;
+	struct ocp_enet_private		*mdio_dev;
+	struct ocp_device		*rgmii_dev;
+	int				rgmii_input;
+
+	struct ocp_def			*def;
+
+	struct mii_phy			phy;
+	struct timer_list		link_timer;
+	int				reset_failed;
+
+	struct ibm_emac_error_stats	estats;
+	struct net_device_stats		nstats;
+
+	struct device*			ldev;
 };
-#endif				/* _IBM_EMAC_CORE_H_ */
+
+/* Ethtool get_regs complex data.
+ * We want to get not just EMAC registers, but also MAL, ZMII, RGMII, TAH 
+ * when available.
+ * 
+ * Returned BLOB consists of the ibm_emac_ethtool_regs_hdr, 
+ * MAL registers, EMAC registers and optional ZMII, RGMII, TAH registers.
+ * Each register component is preceded with emac_ethtool_regs_subhdr.
+ * Order of the optional headers follows their relative bit posititions 
+ * in emac_ethtool_regs_hdr.components
+ */
+#define EMAC_ETHTOOL_REGS_ZMII		0x00000001
+#define EMAC_ETHTOOL_REGS_RGMII		0x00000002
+#define EMAC_ETHTOOL_REGS_TAH		0x00000004
+
+struct emac_ethtool_regs_hdr {
+	u32 components;
+};
+
+struct emac_ethtool_regs_subhdr {
+	u32 version;
+	u32 index;
+};
+
+#endif				/* __IBM_EMAC_CORE_H_ */
diff --git a/drivers/net/ibm_emac/ibm_emac_debug.c b/drivers/net/ibm_emac/ibm_emac_debug.c
index c8512046cf84..75d3b8639041 100644
--- a/drivers/net/ibm_emac/ibm_emac_debug.c
+++ b/drivers/net/ibm_emac/ibm_emac_debug.c
@@ -1,224 +1,213 @@
 /*
- * ibm_ocp_debug.c
+ * drivers/net/ibm_emac/ibm_emac_debug.c
  *
- * This has all the debug routines that where in *_enet.c
+ * Driver for PowerPC 4xx on-chip ethernet controller, debug print routines.
  *
- *      Armin Kuster akuster@mvista.com
- *      April , 2002
- *
- * Copyright 2002 MontaVista Softare Inc.
+ * Copyright (c) 2004, 2005 Zultys Technologies
+ * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
  *
  * This program is free software; you can redistribute  it and/or modify it
  * under  the terms of  the GNU General  Public License as published by the
  * Free Software Foundation;  either version 2 of the  License, or (at your
  * option) any later version.
+ *
  */
-
 #include <linux/config.h>
+#include <linux/init.h>
+#include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/netdevice.h>
+#include <linux/sysrq.h>
 #include <asm/io.h>
-#include "ibm_ocp_mal.h"
-#include "ibm_ocp_zmii.h"
-#include "ibm_ocp_enet.h"
 
-extern int emac_phy_read(struct net_device *dev, int mii_id, int reg);
+#include "ibm_emac_core.h"
+
+static void emac_desc_dump(int idx, struct ocp_enet_private *p)
+{
+	int i;
+	printk("** EMAC%d TX BDs **\n"
+	       " tx_cnt = %d tx_slot = %d ack_slot = %d\n",
+	       idx, p->tx_cnt, p->tx_slot, p->ack_slot);
+	for (i = 0; i < NUM_TX_BUFF / 2; ++i)
+		printk
+		    ("bd[%2d] 0x%08x %c 0x%04x %4u - bd[%2d] 0x%08x %c 0x%04x %4u\n",
+		     i, p->tx_desc[i].data_ptr, p->tx_skb[i] ? 'V' : ' ',
+		     p->tx_desc[i].ctrl, p->tx_desc[i].data_len,
+		     NUM_TX_BUFF / 2 + i,
+		     p->tx_desc[NUM_TX_BUFF / 2 + i].data_ptr,
+		     p->tx_skb[NUM_TX_BUFF / 2 + i] ? 'V' : ' ',
+		     p->tx_desc[NUM_TX_BUFF / 2 + i].ctrl,
+		     p->tx_desc[NUM_TX_BUFF / 2 + i].data_len);
+
+	printk("** EMAC%d RX BDs **\n"
+	       " rx_slot = %d rx_stopped = %d rx_skb_size = %d rx_sync_size = %d\n"
+	       " rx_sg_skb = 0x%p\n",
+	       idx, p->rx_slot, p->commac.rx_stopped, p->rx_skb_size,
+	       p->rx_sync_size, p->rx_sg_skb);
+	for (i = 0; i < NUM_RX_BUFF / 2; ++i)
+		printk
+		    ("bd[%2d] 0x%08x %c 0x%04x %4u - bd[%2d] 0x%08x %c 0x%04x %4u\n",
+		     i, p->rx_desc[i].data_ptr, p->rx_skb[i] ? 'V' : ' ',
+		     p->rx_desc[i].ctrl, p->rx_desc[i].data_len,
+		     NUM_RX_BUFF / 2 + i,
+		     p->rx_desc[NUM_RX_BUFF / 2 + i].data_ptr,
+		     p->rx_skb[NUM_RX_BUFF / 2 + i] ? 'V' : ' ',
+		     p->rx_desc[NUM_RX_BUFF / 2 + i].ctrl,
+		     p->rx_desc[NUM_RX_BUFF / 2 + i].data_len);
+}
+
+static void emac_mac_dump(int idx, struct ocp_enet_private *dev)
+{
+	struct emac_regs *p = dev->emacp;
+
+	printk("** EMAC%d registers **\n"
+	       "MR0 = 0x%08x MR1 = 0x%08x TMR0 = 0x%08x TMR1 = 0x%08x\n"
+	       "RMR = 0x%08x ISR = 0x%08x ISER = 0x%08x\n"
+	       "IAR = %04x%08x VTPID = 0x%04x VTCI = 0x%04x\n"
+	       "IAHT: 0x%04x 0x%04x 0x%04x 0x%04x "
+	       "GAHT: 0x%04x 0x%04x 0x%04x 0x%04x\n"
+	       "LSA = %04x%08x IPGVR = 0x%04x\n"
+	       "STACR = 0x%08x TRTR = 0x%08x RWMR = 0x%08x\n"
+	       "OCTX = 0x%08x OCRX = 0x%08x IPCR = 0x%08x\n",
+	       idx, in_be32(&p->mr0), in_be32(&p->mr1),
+	       in_be32(&p->tmr0), in_be32(&p->tmr1),
+	       in_be32(&p->rmr), in_be32(&p->isr), in_be32(&p->iser),
+	       in_be32(&p->iahr), in_be32(&p->ialr), in_be32(&p->vtpid),
+	       in_be32(&p->vtci),
+	       in_be32(&p->iaht1), in_be32(&p->iaht2), in_be32(&p->iaht3),
+	       in_be32(&p->iaht4),
+	       in_be32(&p->gaht1), in_be32(&p->gaht2), in_be32(&p->gaht3),
+	       in_be32(&p->gaht4),
+	       in_be32(&p->lsah), in_be32(&p->lsal), in_be32(&p->ipgvr),
+	       in_be32(&p->stacr), in_be32(&p->trtr), in_be32(&p->rwmr),
+	       in_be32(&p->octx), in_be32(&p->ocrx), in_be32(&p->ipcr)
+	    );
+
+	emac_desc_dump(idx, dev);
+}
+
+static void emac_mal_dump(struct ibm_ocp_mal *mal)
+{
+	struct ocp_func_mal_data *maldata = mal->def->additions;
+	int i;
+
+	printk("** MAL%d Registers **\n"
+	       "CFG = 0x%08x ESR = 0x%08x IER = 0x%08x\n"
+	       "TX|CASR = 0x%08x CARR = 0x%08x EOBISR = 0x%08x DEIR = 0x%08x\n"
+	       "RX|CASR = 0x%08x CARR = 0x%08x EOBISR = 0x%08x DEIR = 0x%08x\n",
+	       mal->def->index,
+	       get_mal_dcrn(mal, MAL_CFG), get_mal_dcrn(mal, MAL_ESR),
+	       get_mal_dcrn(mal, MAL_IER),
+	       get_mal_dcrn(mal, MAL_TXCASR), get_mal_dcrn(mal, MAL_TXCARR),
+	       get_mal_dcrn(mal, MAL_TXEOBISR), get_mal_dcrn(mal, MAL_TXDEIR),
+	       get_mal_dcrn(mal, MAL_RXCASR), get_mal_dcrn(mal, MAL_RXCARR),
+	       get_mal_dcrn(mal, MAL_RXEOBISR), get_mal_dcrn(mal, MAL_RXDEIR)
+	    );
+
+	printk("TX|");
+	for (i = 0; i < maldata->num_tx_chans; ++i) {
+		if (i && !(i % 4))
+			printk("\n   ");
+		printk("CTP%d = 0x%08x ", i, get_mal_dcrn(mal, MAL_TXCTPR(i)));
+	}
+	printk("\nRX|");
+	for (i = 0; i < maldata->num_rx_chans; ++i) {
+		if (i && !(i % 4))
+			printk("\n   ");
+		printk("CTP%d = 0x%08x ", i, get_mal_dcrn(mal, MAL_RXCTPR(i)));
+	}
+	printk("\n   ");
+	for (i = 0; i < maldata->num_rx_chans; ++i) {
+		u32 r = get_mal_dcrn(mal, MAL_RCBS(i));
+		if (i && !(i % 3))
+			printk("\n   ");
+		printk("RCBS%d = 0x%08x (%d) ", i, r, r * 16);
+	}
+	printk("\n");
+}
+
+static struct ocp_enet_private *__emacs[4];
+static struct ibm_ocp_mal *__mals[1];
 
-void emac_phy_dump(struct net_device *dev)
+void emac_dbg_register(int idx, struct ocp_enet_private *dev)
 {
-	struct ocp_enet_private *fep = dev->priv;
-	unsigned long i;
-	uint data;
-
-	printk(KERN_DEBUG " Prepare for Phy dump....\n");
-	for (i = 0; i < 0x1A; i++) {
-		data = emac_phy_read(dev, fep->mii_phy_addr, i);
-		printk(KERN_DEBUG "Phy reg 0x%lx ==> %4x\n", i, data);
-		if (i == 0x07)
-			i = 0x0f;
+	unsigned long flags;
+
+	if (idx >= sizeof(__emacs) / sizeof(__emacs[0])) {
+		printk(KERN_WARNING
+		       "invalid index %d when registering EMAC for debugging\n",
+		       idx);
+		return;
 	}
+
+	local_irq_save(flags);
+	__emacs[idx] = dev;
+	local_irq_restore(flags);
 }
 
-void emac_desc_dump(struct net_device *dev)
+void mal_dbg_register(int idx, struct ibm_ocp_mal *mal)
 {
-	struct ocp_enet_private *fep = dev->priv;
-	int curr_slot;
-
-	printk(KERN_DEBUG
-	       "dumping the receive descriptors:  current slot is %d\n",
-	       fep->rx_slot);
-	for (curr_slot = 0; curr_slot < NUM_RX_BUFF; curr_slot++) {
-		printk(KERN_DEBUG
-		       "Desc %02d: status 0x%04x, length %3d, addr 0x%x\n",
-		       curr_slot, fep->rx_desc[curr_slot].ctrl,
-		       fep->rx_desc[curr_slot].data_len,
-		       (unsigned int)fep->rx_desc[curr_slot].data_ptr);
+	unsigned long flags;
+
+	if (idx >= sizeof(__mals) / sizeof(__mals[0])) {
+		printk(KERN_WARNING
+		       "invalid index %d when registering MAL for debugging\n",
+		       idx);
+		return;
 	}
+
+	local_irq_save(flags);
+	__mals[idx] = mal;
+	local_irq_restore(flags);
 }
 
-void emac_mac_dump(struct net_device *dev)
+void emac_dbg_dump_all(void)
 {
-	struct ocp_enet_private *fep = dev->priv;
-	volatile emac_t *emacp = fep->emacp;
-
-	printk(KERN_DEBUG "EMAC DEBUG ********** \n");
-	printk(KERN_DEBUG "EMAC_M0  ==> 0x%x\n", in_be32(&emacp->em0mr0));
-	printk(KERN_DEBUG "EMAC_M1  ==> 0x%x\n", in_be32(&emacp->em0mr1));
-	printk(KERN_DEBUG "EMAC_TXM0==> 0x%x\n", in_be32(&emacp->em0tmr0));
-	printk(KERN_DEBUG "EMAC_TXM1==> 0x%x\n", in_be32(&emacp->em0tmr1));
-	printk(KERN_DEBUG "EMAC_RXM ==> 0x%x\n", in_be32(&emacp->em0rmr));
-	printk(KERN_DEBUG "EMAC_ISR ==> 0x%x\n", in_be32(&emacp->em0isr));
-	printk(KERN_DEBUG "EMAC_IER ==> 0x%x\n", in_be32(&emacp->em0iser));
-	printk(KERN_DEBUG "EMAC_IAH ==> 0x%x\n", in_be32(&emacp->em0iahr));
-	printk(KERN_DEBUG "EMAC_IAL ==> 0x%x\n", in_be32(&emacp->em0ialr));
-	printk(KERN_DEBUG "EMAC_VLAN_TPID_REG ==> 0x%x\n",
-	       in_be32(&emacp->em0vtpid));
+	unsigned int i;
+	unsigned long flags;
+
+	local_irq_save(flags);
+
+	for (i = 0; i < sizeof(__mals) / sizeof(__mals[0]); ++i)
+		if (__mals[i])
+			emac_mal_dump(__mals[i]);
+
+	for (i = 0; i < sizeof(__emacs) / sizeof(__emacs[0]); ++i)
+		if (__emacs[i])
+			emac_mac_dump(i, __emacs[i]);
+
+	local_irq_restore(flags);
 }
 
-void emac_mal_dump(struct net_device *dev)
+#if defined(CONFIG_MAGIC_SYSRQ)
+static void emac_sysrq_handler(int key, struct pt_regs *pt_regs,
+			       struct tty_struct *tty)
 {
-	struct ibm_ocp_mal *mal = ((struct ocp_enet_private *)dev->priv)->mal;
-
-	printk(KERN_DEBUG " MAL DEBUG ********** \n");
-	printk(KERN_DEBUG " MCR      ==> 0x%x\n",
-	       (unsigned int)get_mal_dcrn(mal, DCRN_MALCR));
-	printk(KERN_DEBUG " ESR      ==> 0x%x\n",
-	       (unsigned int)get_mal_dcrn(mal, DCRN_MALESR));
-	printk(KERN_DEBUG " IER      ==> 0x%x\n",
-	       (unsigned int)get_mal_dcrn(mal, DCRN_MALIER));
-#ifdef CONFIG_40x
-	printk(KERN_DEBUG " DBR      ==> 0x%x\n",
-	       (unsigned int)get_mal_dcrn(mal, DCRN_MALDBR));
-#endif				/* CONFIG_40x */
-	printk(KERN_DEBUG " TXCASR   ==> 0x%x\n",
-	       (unsigned int)get_mal_dcrn(mal, DCRN_MALTXCASR));
-	printk(KERN_DEBUG " TXCARR   ==> 0x%x\n",
-	       (unsigned int)get_mal_dcrn(mal, DCRN_MALTXCARR));
-	printk(KERN_DEBUG " TXEOBISR ==> 0x%x\n",
-	       (unsigned int)get_mal_dcrn(mal, DCRN_MALTXEOBISR));
-	printk(KERN_DEBUG " TXDEIR   ==> 0x%x\n",
-	       (unsigned int)get_mal_dcrn(mal, DCRN_MALTXDEIR));
-	printk(KERN_DEBUG " RXCASR   ==> 0x%x\n",
-	       (unsigned int)get_mal_dcrn(mal, DCRN_MALRXCASR));
-	printk(KERN_DEBUG " RXCARR   ==> 0x%x\n",
-	       (unsigned int)get_mal_dcrn(mal, DCRN_MALRXCARR));
-	printk(KERN_DEBUG " RXEOBISR ==> 0x%x\n",
-	       (unsigned int)get_mal_dcrn(mal, DCRN_MALRXEOBISR));
-	printk(KERN_DEBUG " RXDEIR   ==> 0x%x\n",
-	       (unsigned int)get_mal_dcrn(mal, DCRN_MALRXDEIR));
-	printk(KERN_DEBUG " TXCTP0R  ==> 0x%x\n",
-	       (unsigned int)get_mal_dcrn(mal, DCRN_MALTXCTP0R));
-	printk(KERN_DEBUG " TXCTP1R  ==> 0x%x\n",
-	       (unsigned int)get_mal_dcrn(mal, DCRN_MALTXCTP1R));
-	printk(KERN_DEBUG " TXCTP2R  ==> 0x%x\n",
-	       (unsigned int)get_mal_dcrn(mal, DCRN_MALTXCTP2R));
-	printk(KERN_DEBUG " TXCTP3R  ==> 0x%x\n",
-	       (unsigned int)get_mal_dcrn(mal, DCRN_MALTXCTP3R));
-	printk(KERN_DEBUG " RXCTP0R  ==> 0x%x\n",
-	       (unsigned int)get_mal_dcrn(mal, DCRN_MALRXCTP0R));
-	printk(KERN_DEBUG " RXCTP1R  ==> 0x%x\n",
-	       (unsigned int)get_mal_dcrn(mal, DCRN_MALRXCTP1R));
-	printk(KERN_DEBUG " RCBS0    ==> 0x%x\n",
-	       (unsigned int)get_mal_dcrn(mal, DCRN_MALRCBS0));
-	printk(KERN_DEBUG " RCBS1    ==> 0x%x\n",
-	       (unsigned int)get_mal_dcrn(mal, DCRN_MALRCBS1));
+	emac_dbg_dump_all();
 }
 
-void emac_serr_dump_0(struct net_device *dev)
+static struct sysrq_key_op emac_sysrq_op = {
+	.handler = emac_sysrq_handler,
+	.help_msg = "emaC",
+	.action_msg = "Show EMAC(s) status",
+};
+
+int __init emac_init_debug(void)
 {
-	struct ibm_ocp_mal *mal = ((struct ocp_enet_private *)dev->priv)->mal;
-	unsigned long int mal_error, plb_error, plb_addr;
-
-	mal_error = get_mal_dcrn(mal, DCRN_MALESR);
-	printk(KERN_DEBUG "ppc405_eth_serr: %s channel %ld \n",
-	       (mal_error & 0x40000000) ? "Receive" :
-	       "Transmit", (mal_error & 0x3e000000) >> 25);
-	printk(KERN_DEBUG "  -----  latched error  -----\n");
-	if (mal_error & MALESR_DE)
-		printk(KERN_DEBUG "  DE: descriptor error\n");
-	if (mal_error & MALESR_OEN)
-		printk(KERN_DEBUG "  ONE: OPB non-fullword error\n");
-	if (mal_error & MALESR_OTE)
-		printk(KERN_DEBUG "  OTE: OPB timeout error\n");
-	if (mal_error & MALESR_OSE)
-		printk(KERN_DEBUG "  OSE: OPB slave error\n");
-
-	if (mal_error & MALESR_PEIN) {
-		plb_error = mfdcr(DCRN_PLB0_BESR);
-		printk(KERN_DEBUG
-		       "  PEIN: PLB error, PLB0_BESR is 0x%x\n",
-		       (unsigned int)plb_error);
-		plb_addr = mfdcr(DCRN_PLB0_BEAR);
-		printk(KERN_DEBUG
-		       "  PEIN: PLB error, PLB0_BEAR is 0x%x\n",
-		       (unsigned int)plb_addr);
-	}
+	return register_sysrq_key('c', &emac_sysrq_op);
 }
 
-void emac_serr_dump_1(struct net_device *dev)
+void __exit emac_fini_debug(void)
 {
-	struct ibm_ocp_mal *mal = ((struct ocp_enet_private *)dev->priv)->mal;
-	int mal_error = get_mal_dcrn(mal, DCRN_MALESR);
-
-	printk(KERN_DEBUG "  -----  cumulative errors  -----\n");
-	if (mal_error & MALESR_DEI)
-		printk(KERN_DEBUG "  DEI: descriptor error interrupt\n");
-	if (mal_error & MALESR_ONEI)
-		printk(KERN_DEBUG "  OPB non-fullword error interrupt\n");
-	if (mal_error & MALESR_OTEI)
-		printk(KERN_DEBUG "  OTEI: timeout error interrupt\n");
-	if (mal_error & MALESR_OSEI)
-		printk(KERN_DEBUG "  OSEI: slave error interrupt\n");
-	if (mal_error & MALESR_PBEI)
-		printk(KERN_DEBUG "  PBEI: PLB bus error interrupt\n");
+	unregister_sysrq_key('c', &emac_sysrq_op);
 }
 
-void emac_err_dump(struct net_device *dev, int em0isr)
+#else
+int __init emac_init_debug(void)
+{
+	return 0;
+}
+void __exit emac_fini_debug(void)
 {
-	printk(KERN_DEBUG "%s: on-chip ethernet error:\n", dev->name);
-
-	if (em0isr & EMAC_ISR_OVR)
-		printk(KERN_DEBUG "  OVR: overrun\n");
-	if (em0isr & EMAC_ISR_PP)
-		printk(KERN_DEBUG "  PP: control pause packet\n");
-	if (em0isr & EMAC_ISR_BP)
-		printk(KERN_DEBUG "  BP: packet error\n");
-	if (em0isr & EMAC_ISR_RP)
-		printk(KERN_DEBUG "  RP: runt packet\n");
-	if (em0isr & EMAC_ISR_SE)
-		printk(KERN_DEBUG "  SE: short event\n");
-	if (em0isr & EMAC_ISR_ALE)
-		printk(KERN_DEBUG "  ALE: odd number of nibbles in packet\n");
-	if (em0isr & EMAC_ISR_BFCS)
-		printk(KERN_DEBUG "  BFCS: bad FCS\n");
-	if (em0isr & EMAC_ISR_PTLE)
-		printk(KERN_DEBUG "  PTLE: oversized packet\n");
-	if (em0isr & EMAC_ISR_ORE)
-		printk(KERN_DEBUG
-		       "  ORE: packet length field > max allowed LLC\n");
-	if (em0isr & EMAC_ISR_IRE)
-		printk(KERN_DEBUG "  IRE: In Range error\n");
-	if (em0isr & EMAC_ISR_DBDM)
-		printk(KERN_DEBUG "  DBDM: xmit error or SQE\n");
-	if (em0isr & EMAC_ISR_DB0)
-		printk(KERN_DEBUG "  DB0: xmit error or SQE on TX channel 0\n");
-	if (em0isr & EMAC_ISR_SE0)
-		printk(KERN_DEBUG
-		       "  SE0: Signal Quality Error test failure from TX channel 0\n");
-	if (em0isr & EMAC_ISR_TE0)
-		printk(KERN_DEBUG "  TE0: xmit channel 0 aborted\n");
-	if (em0isr & EMAC_ISR_DB1)
-		printk(KERN_DEBUG "  DB1: xmit error or SQE on TX channel \n");
-	if (em0isr & EMAC_ISR_SE1)
-		printk(KERN_DEBUG
-		       "  SE1: Signal Quality Error test failure from TX channel 1\n");
-	if (em0isr & EMAC_ISR_TE1)
-		printk(KERN_DEBUG "  TE1: xmit channel 1 aborted\n");
-	if (em0isr & EMAC_ISR_MOS)
-		printk(KERN_DEBUG "  MOS\n");
-	if (em0isr & EMAC_ISR_MOF)
-		printk(KERN_DEBUG "  MOF\n");
-
-	emac_mac_dump(dev);
-	emac_mal_dump(dev);
 }
+#endif				/* CONFIG_MAGIC_SYSRQ */
diff --git a/drivers/net/ibm_emac/ibm_emac_debug.h b/drivers/net/ibm_emac/ibm_emac_debug.h
new file mode 100644
index 000000000000..e85fbe0a8da9
--- /dev/null
+++ b/drivers/net/ibm_emac/ibm_emac_debug.h
@@ -0,0 +1,63 @@
+/*
+ * drivers/net/ibm_emac/ibm_ocp_debug.h
+ *
+ * Driver for PowerPC 4xx on-chip ethernet controller, debug print routines.
+ *
+ * Copyright (c) 2004, 2005 Zultys Technologies
+ * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ *
+ */
+#ifndef __IBM_EMAC_DEBUG_H_
+#define __IBM_EMAC_DEBUG_H_
+
+#include <linux/config.h>
+#include <linux/init.h>
+#include "ibm_emac_core.h"
+#include "ibm_emac_mal.h"
+
+#if defined(CONFIG_IBM_EMAC_DEBUG)
+void emac_dbg_register(int idx, struct ocp_enet_private *dev);
+void mal_dbg_register(int idx, struct ibm_ocp_mal *mal);
+int emac_init_debug(void) __init;
+void emac_fini_debug(void) __exit;
+void emac_dbg_dump_all(void);
+# define DBG_LEVEL		1
+#else
+# define emac_dbg_register(x,y) ((void)0)
+# define mal_dbg_register(x,y)	((void)0)
+# define emac_init_debug()	((void)0)
+# define emac_fini_debug()	((void)0)
+# define emac_dbg_dump_all()	((void)0)
+# define DBG_LEVEL		0
+#endif
+
+#if DBG_LEVEL > 0
+#  define DBG(f,x...)		printk("emac" f, ##x)
+#  define MAL_DBG(f,x...)	printk("mal" f, ##x)
+#  define ZMII_DBG(f,x...)	printk("zmii" f, ##x)
+#  define RGMII_DBG(f,x...)	printk("rgmii" f, ##x)
+#  define NL			"\n"
+#else
+#  define DBG(f,x...)		((void)0)
+#  define MAL_DBG(f,x...)	((void)0)
+#  define ZMII_DBG(f,x...)	((void)0)
+#  define RGMII_DBG(f,x...)	((void)0)
+#endif
+#if DBG_LEVEL > 1
+#  define DBG2(f,x...) 		DBG(f, ##x)
+#  define MAL_DBG2(f,x...) 	MAL_DBG(f, ##x)
+#  define ZMII_DBG2(f,x...) 	ZMII_DBG(f, ##x)
+#  define RGMII_DBG2(f,x...) 	RGMII_DBG(f, ##x)
+#else
+#  define DBG2(f,x...) 		((void)0)
+#  define MAL_DBG2(f,x...) 	((void)0)
+#  define ZMII_DBG2(f,x...) 	((void)0)
+#  define RGMII_DBG2(f,x...) 	((void)0)
+#endif
+
+#endif				/* __IBM_EMAC_DEBUG_H_ */
diff --git a/drivers/net/ibm_emac/ibm_emac_mal.c b/drivers/net/ibm_emac/ibm_emac_mal.c
index e59f57f363ca..da88d43081cc 100644
--- a/drivers/net/ibm_emac/ibm_emac_mal.c
+++ b/drivers/net/ibm_emac/ibm_emac_mal.c
@@ -1,436 +1,565 @@
 /*
- * ibm_ocp_mal.c
+ * drivers/net/ibm_emac/ibm_emac_mal.c
  *
- *      Armin Kuster akuster@mvista.com
- *      Juen, 2002
+ * Memory Access Layer (MAL) support
+ * 
+ * Copyright (c) 2004, 2005 Zultys Technologies.
+ * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
  *
- * Copyright 2002 MontaVista Softare Inc.
+ * Based on original work by
+ *      Benjamin Herrenschmidt <benh@kernel.crashing.org>,
+ *      David Gibson <hermes@gibson.dropbear.id.au>,
+ *
+ *      Armin Kuster <akuster@mvista.com>
+ *      Copyright 2002 MontaVista Softare Inc.
  *
  * This program is free software; you can redistribute  it and/or modify it
  * under  the terms of  the GNU General  Public License as published by the
  * Free Software Foundation;  either version 2 of the  License, or (at your
  * option) any later version.
+ *
  */
-
 #include <linux/config.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/errno.h>
 #include <linux/netdevice.h>
 #include <linux/init.h>
+#include <linux/interrupt.h>
 #include <linux/dma-mapping.h>
 
-#include <asm/io.h>
-#include <asm/irq.h>
 #include <asm/ocp.h>
 
+#include "ibm_emac_core.h"
 #include "ibm_emac_mal.h"
+#include "ibm_emac_debug.h"
 
-// Locking: Should we share a lock with the client ? The client could provide
-// a lock pointer (optionally) in the commac structure... I don't think this is
-// really necessary though
-
-/* This lock protects the commac list. On today UP implementations, it's
- * really only used as IRQ protection in mal_{register,unregister}_commac()
- */
-static DEFINE_RWLOCK(mal_list_lock);
-
-int mal_register_commac(struct ibm_ocp_mal *mal, struct mal_commac *commac)
+int __init mal_register_commac(struct ibm_ocp_mal *mal,
+			       struct mal_commac *commac)
 {
 	unsigned long flags;
+	local_irq_save(flags);
 
-	write_lock_irqsave(&mal_list_lock, flags);
+	MAL_DBG("%d: reg(%08x, %08x)" NL, mal->def->index,
+		commac->tx_chan_mask, commac->rx_chan_mask);
 
-	/* Don't let multiple commacs claim the same channel */
+	/* Don't let multiple commacs claim the same channel(s) */
 	if ((mal->tx_chan_mask & commac->tx_chan_mask) ||
 	    (mal->rx_chan_mask & commac->rx_chan_mask)) {
-		write_unlock_irqrestore(&mal_list_lock, flags);
+		local_irq_restore(flags);
+		printk(KERN_WARNING "mal%d: COMMAC channels conflict!\n",
+		       mal->def->index);
 		return -EBUSY;
 	}
 
 	mal->tx_chan_mask |= commac->tx_chan_mask;
 	mal->rx_chan_mask |= commac->rx_chan_mask;
+	list_add(&commac->list, &mal->list);
 
-	list_add(&commac->list, &mal->commac);
-
-	write_unlock_irqrestore(&mal_list_lock, flags);
-
+	local_irq_restore(flags);
 	return 0;
 }
 
-int mal_unregister_commac(struct ibm_ocp_mal *mal, struct mal_commac *commac)
+void __exit mal_unregister_commac(struct ibm_ocp_mal *mal,
+				  struct mal_commac *commac)
 {
 	unsigned long flags;
+	local_irq_save(flags);
 
-	write_lock_irqsave(&mal_list_lock, flags);
+	MAL_DBG("%d: unreg(%08x, %08x)" NL, mal->def->index,
+		commac->tx_chan_mask, commac->rx_chan_mask);
 
 	mal->tx_chan_mask &= ~commac->tx_chan_mask;
 	mal->rx_chan_mask &= ~commac->rx_chan_mask;
-
 	list_del_init(&commac->list);
 
-	write_unlock_irqrestore(&mal_list_lock, flags);
-
-	return 0;
+	local_irq_restore(flags);
 }
 
 int mal_set_rcbs(struct ibm_ocp_mal *mal, int channel, unsigned long size)
 {
-	switch (channel) {
-	case 0:
-		set_mal_dcrn(mal, DCRN_MALRCBS0, size);
-		break;
-#ifdef DCRN_MALRCBS1
-	case 1:
-		set_mal_dcrn(mal, DCRN_MALRCBS1, size);
-		break;
-#endif
-#ifdef DCRN_MALRCBS2
-	case 2:
-		set_mal_dcrn(mal, DCRN_MALRCBS2, size);
-		break;
-#endif
-#ifdef DCRN_MALRCBS3
-	case 3:
-		set_mal_dcrn(mal, DCRN_MALRCBS3, size);
-		break;
-#endif
-	default:
+	struct ocp_func_mal_data *maldata = mal->def->additions;
+	BUG_ON(channel < 0 || channel >= maldata->num_rx_chans ||
+	       size > MAL_MAX_RX_SIZE);
+
+	MAL_DBG("%d: set_rbcs(%d, %lu)" NL, mal->def->index, channel, size);
+
+	if (size & 0xf) {
+		printk(KERN_WARNING
+		       "mal%d: incorrect RX size %lu for the channel %d\n",
+		       mal->def->index, size, channel);
 		return -EINVAL;
 	}
 
+	set_mal_dcrn(mal, MAL_RCBS(channel), size >> 4);
 	return 0;
 }
 
-static irqreturn_t mal_serr(int irq, void *dev_instance, struct pt_regs *regs)
+int mal_tx_bd_offset(struct ibm_ocp_mal *mal, int channel)
 {
-	struct ibm_ocp_mal *mal = dev_instance;
-	unsigned long mal_error;
+	struct ocp_func_mal_data *maldata = mal->def->additions;
+	BUG_ON(channel < 0 || channel >= maldata->num_tx_chans);
+	return channel * NUM_TX_BUFF;
+}
 
-	/*
-	 * This SERR applies to one of the devices on the MAL, here we charge
-	 * it against the first EMAC registered for the MAL.
-	 */
+int mal_rx_bd_offset(struct ibm_ocp_mal *mal, int channel)
+{
+	struct ocp_func_mal_data *maldata = mal->def->additions;
+	BUG_ON(channel < 0 || channel >= maldata->num_rx_chans);
+	return maldata->num_tx_chans * NUM_TX_BUFF + channel * NUM_RX_BUFF;
+}
 
-	mal_error = get_mal_dcrn(mal, DCRN_MALESR);
+void mal_enable_tx_channel(struct ibm_ocp_mal *mal, int channel)
+{
+	local_bh_disable();
+	MAL_DBG("%d: enable_tx(%d)" NL, mal->def->index, channel);
+	set_mal_dcrn(mal, MAL_TXCASR,
+		     get_mal_dcrn(mal, MAL_TXCASR) | MAL_CHAN_MASK(channel));
+	local_bh_enable();
+}
 
-	printk(KERN_ERR "%s: System Error (MALESR=%lx)\n",
-	       "MAL" /* FIXME: get the name right */ , mal_error);
+void mal_disable_tx_channel(struct ibm_ocp_mal *mal, int channel)
+{
+	set_mal_dcrn(mal, MAL_TXCARR, MAL_CHAN_MASK(channel));
+	MAL_DBG("%d: disable_tx(%d)" NL, mal->def->index, channel);
+}
 
-	/* FIXME: decipher error */
-	/* DIXME: distribute to commacs, if possible */
+void mal_enable_rx_channel(struct ibm_ocp_mal *mal, int channel)
+{
+	local_bh_disable();
+	MAL_DBG("%d: enable_rx(%d)" NL, mal->def->index, channel);
+	set_mal_dcrn(mal, MAL_RXCASR,
+		     get_mal_dcrn(mal, MAL_RXCASR) | MAL_CHAN_MASK(channel));
+	local_bh_enable();
+}
 
-	/* Clear the error status register */
-	set_mal_dcrn(mal, DCRN_MALESR, mal_error);
+void mal_disable_rx_channel(struct ibm_ocp_mal *mal, int channel)
+{
+	set_mal_dcrn(mal, MAL_RXCARR, MAL_CHAN_MASK(channel));
+	MAL_DBG("%d: disable_rx(%d)" NL, mal->def->index, channel);
+}
 
-	return IRQ_HANDLED;
+void mal_poll_add(struct ibm_ocp_mal *mal, struct mal_commac *commac)
+{
+	local_bh_disable();
+	MAL_DBG("%d: poll_add(%p)" NL, mal->def->index, commac);
+	list_add_tail(&commac->poll_list, &mal->poll_list);
+	local_bh_enable();
 }
 
-static irqreturn_t mal_txeob(int irq, void *dev_instance, struct pt_regs *regs)
+void mal_poll_del(struct ibm_ocp_mal *mal, struct mal_commac *commac)
+{
+	local_bh_disable();
+	MAL_DBG("%d: poll_del(%p)" NL, mal->def->index, commac);
+	list_del(&commac->poll_list);
+	local_bh_enable();
+}
+
+/* synchronized by mal_poll() */
+static inline void mal_enable_eob_irq(struct ibm_ocp_mal *mal)
+{
+	MAL_DBG2("%d: enable_irq" NL, mal->def->index);
+	set_mal_dcrn(mal, MAL_CFG, get_mal_dcrn(mal, MAL_CFG) | MAL_CFG_EOPIE);
+}
+
+/* synchronized by __LINK_STATE_RX_SCHED bit in ndev->state */
+static inline void mal_disable_eob_irq(struct ibm_ocp_mal *mal)
+{
+	set_mal_dcrn(mal, MAL_CFG, get_mal_dcrn(mal, MAL_CFG) & ~MAL_CFG_EOPIE);
+	MAL_DBG2("%d: disable_irq" NL, mal->def->index);
+}
+
+static irqreturn_t mal_serr(int irq, void *dev_instance, struct pt_regs *regs)
 {
 	struct ibm_ocp_mal *mal = dev_instance;
-	struct list_head *l;
-	unsigned long isr;
+	u32 esr = get_mal_dcrn(mal, MAL_ESR);
 
-	isr = get_mal_dcrn(mal, DCRN_MALTXEOBISR);
-	set_mal_dcrn(mal, DCRN_MALTXEOBISR, isr);
+	/* Clear the error status register */
+	set_mal_dcrn(mal, MAL_ESR, esr);
 
-	read_lock(&mal_list_lock);
-	list_for_each(l, &mal->commac) {
-		struct mal_commac *mc = list_entry(l, struct mal_commac, list);
+	MAL_DBG("%d: SERR %08x" NL, mal->def->index, esr);
 
-		if (isr & mc->tx_chan_mask) {
-			mc->ops->txeob(mc->dev, isr & mc->tx_chan_mask);
+	if (esr & MAL_ESR_EVB) {
+		if (esr & MAL_ESR_DE) {
+			/* We ignore Descriptor error,
+			 * TXDE or RXDE interrupt will be generated anyway.
+			 */
+			return IRQ_HANDLED;
 		}
+
+		if (esr & MAL_ESR_PEIN) {
+			/* PLB error, it's probably buggy hardware or
+			 * incorrect physical address in BD (i.e. bug)
+			 */
+			if (net_ratelimit())
+				printk(KERN_ERR
+				       "mal%d: system error, PLB (ESR = 0x%08x)\n",
+				       mal->def->index, esr);
+			return IRQ_HANDLED;
+		}
+
+		/* OPB error, it's probably buggy hardware or incorrect EBC setup */
+		if (net_ratelimit())
+			printk(KERN_ERR
+			       "mal%d: system error, OPB (ESR = 0x%08x)\n",
+			       mal->def->index, esr);
 	}
-	read_unlock(&mal_list_lock);
+	return IRQ_HANDLED;
+}
+
+static inline void mal_schedule_poll(struct ibm_ocp_mal *mal)
+{
+	if (likely(netif_rx_schedule_prep(&mal->poll_dev))) {
+		MAL_DBG2("%d: schedule_poll" NL, mal->def->index);
+		mal_disable_eob_irq(mal);
+		__netif_rx_schedule(&mal->poll_dev);
+	} else
+		MAL_DBG2("%d: already in poll" NL, mal->def->index);
+}
 
+static irqreturn_t mal_txeob(int irq, void *dev_instance, struct pt_regs *regs)
+{
+	struct ibm_ocp_mal *mal = dev_instance;
+	u32 r = get_mal_dcrn(mal, MAL_TXEOBISR);
+	MAL_DBG2("%d: txeob %08x" NL, mal->def->index, r);
+	mal_schedule_poll(mal);
+	set_mal_dcrn(mal, MAL_TXEOBISR, r);
 	return IRQ_HANDLED;
 }
 
 static irqreturn_t mal_rxeob(int irq, void *dev_instance, struct pt_regs *regs)
 {
 	struct ibm_ocp_mal *mal = dev_instance;
-	struct list_head *l;
-	unsigned long isr;
+	u32 r = get_mal_dcrn(mal, MAL_RXEOBISR);
+	MAL_DBG2("%d: rxeob %08x" NL, mal->def->index, r);
+	mal_schedule_poll(mal);
+	set_mal_dcrn(mal, MAL_RXEOBISR, r);
+	return IRQ_HANDLED;
+}
 
-	isr = get_mal_dcrn(mal, DCRN_MALRXEOBISR);
-	set_mal_dcrn(mal, DCRN_MALRXEOBISR, isr);
+static irqreturn_t mal_txde(int irq, void *dev_instance, struct pt_regs *regs)
+{
+	struct ibm_ocp_mal *mal = dev_instance;
+	u32 deir = get_mal_dcrn(mal, MAL_TXDEIR);
+	set_mal_dcrn(mal, MAL_TXDEIR, deir);
 
-	read_lock(&mal_list_lock);
-	list_for_each(l, &mal->commac) {
-		struct mal_commac *mc = list_entry(l, struct mal_commac, list);
+	MAL_DBG("%d: txde %08x" NL, mal->def->index, deir);
 
-		if (isr & mc->rx_chan_mask) {
-			mc->ops->rxeob(mc->dev, isr & mc->rx_chan_mask);
-		}
-	}
-	read_unlock(&mal_list_lock);
+	if (net_ratelimit())
+		printk(KERN_ERR
+		       "mal%d: TX descriptor error (TXDEIR = 0x%08x)\n",
+		       mal->def->index, deir);
 
 	return IRQ_HANDLED;
 }
 
-static irqreturn_t mal_txde(int irq, void *dev_instance, struct pt_regs *regs)
+static irqreturn_t mal_rxde(int irq, void *dev_instance, struct pt_regs *regs)
 {
 	struct ibm_ocp_mal *mal = dev_instance;
 	struct list_head *l;
-	unsigned long deir;
+	u32 deir = get_mal_dcrn(mal, MAL_RXDEIR);
 
-	deir = get_mal_dcrn(mal, DCRN_MALTXDEIR);
+	MAL_DBG("%d: rxde %08x" NL, mal->def->index, deir);
 
-	/* FIXME: print which MAL correctly */
-	printk(KERN_WARNING "%s: Tx descriptor error (MALTXDEIR=%lx)\n",
-	       "MAL", deir);
-
-	read_lock(&mal_list_lock);
-	list_for_each(l, &mal->commac) {
+	list_for_each(l, &mal->list) {
 		struct mal_commac *mc = list_entry(l, struct mal_commac, list);
-
-		if (deir & mc->tx_chan_mask) {
-			mc->ops->txde(mc->dev, deir & mc->tx_chan_mask);
+		if (deir & mc->rx_chan_mask) {
+			mc->rx_stopped = 1;
+			mc->ops->rxde(mc->dev);
 		}
 	}
-	read_unlock(&mal_list_lock);
+
+	mal_schedule_poll(mal);
+	set_mal_dcrn(mal, MAL_RXDEIR, deir);
 
 	return IRQ_HANDLED;
 }
 
-/*
- * This interrupt should be very rare at best.  This occurs when
- * the hardware has a problem with the receive descriptors.  The manual
- * states that it occurs when the hardware cannot the receive descriptor
- * empty bit is not set.  The recovery mechanism will be to
- * traverse through the descriptors, handle any that are marked to be
- * handled and reinitialize each along the way.  At that point the driver
- * will be restarted.
- */
-static irqreturn_t mal_rxde(int irq, void *dev_instance, struct pt_regs *regs)
+static int mal_poll(struct net_device *ndev, int *budget)
 {
-	struct ibm_ocp_mal *mal = dev_instance;
+	struct ibm_ocp_mal *mal = ndev->priv;
 	struct list_head *l;
-	unsigned long deir;
-
-	deir = get_mal_dcrn(mal, DCRN_MALRXDEIR);
+	int rx_work_limit = min(ndev->quota, *budget), received = 0, done;
+
+	MAL_DBG2("%d: poll(%d) %d ->" NL, mal->def->index, *budget,
+		 rx_work_limit);
+      again:
+	/* Process TX skbs */
+	list_for_each(l, &mal->poll_list) {
+		struct mal_commac *mc =
+		    list_entry(l, struct mal_commac, poll_list);
+		mc->ops->poll_tx(mc->dev);
+	}
 
-	/*
-	 * This really is needed.  This case encountered in stress testing.
+	/* Process RX skbs.
+	 * We _might_ need something more smart here to enforce polling fairness.
 	 */
-	if (deir == 0)
-		return IRQ_HANDLED;
-
-	/* FIXME: print which MAL correctly */
-	printk(KERN_WARNING "%s: Rx descriptor error (MALRXDEIR=%lx)\n",
-	       "MAL", deir);
-
-	read_lock(&mal_list_lock);
-	list_for_each(l, &mal->commac) {
-		struct mal_commac *mc = list_entry(l, struct mal_commac, list);
+	list_for_each(l, &mal->poll_list) {
+		struct mal_commac *mc =
+		    list_entry(l, struct mal_commac, poll_list);
+		int n = mc->ops->poll_rx(mc->dev, rx_work_limit);
+		if (n) {
+			received += n;
+			rx_work_limit -= n;
+			if (rx_work_limit <= 0) {
+				done = 0;
+				goto more_work;	// XXX What if this is the last one ?
+			}
+		}
+	}
 
-		if (deir & mc->rx_chan_mask) {
-			mc->ops->rxde(mc->dev, deir & mc->rx_chan_mask);
+	/* We need to disable IRQs to protect from RXDE IRQ here */
+	local_irq_disable();
+	__netif_rx_complete(ndev);
+	mal_enable_eob_irq(mal);
+	local_irq_enable();
+
+	done = 1;
+
+	/* Check for "rotting" packet(s) */
+	list_for_each(l, &mal->poll_list) {
+		struct mal_commac *mc =
+		    list_entry(l, struct mal_commac, poll_list);
+		if (unlikely(mc->ops->peek_rx(mc->dev) || mc->rx_stopped)) {
+			MAL_DBG2("%d: rotting packet" NL, mal->def->index);
+			if (netif_rx_reschedule(ndev, received))
+				mal_disable_eob_irq(mal);
+			else
+				MAL_DBG2("%d: already in poll list" NL,
+					 mal->def->index);
+
+			if (rx_work_limit > 0)
+				goto again;
+			else
+				goto more_work;
 		}
+		mc->ops->poll_tx(mc->dev);
 	}
-	read_unlock(&mal_list_lock);
 
-	return IRQ_HANDLED;
+      more_work:
+	ndev->quota -= received;
+	*budget -= received;
+
+	MAL_DBG2("%d: poll() %d <- %d" NL, mal->def->index, *budget,
+		 done ? 0 : 1);
+	return done ? 0 : 1;
+}
+
+static void mal_reset(struct ibm_ocp_mal *mal)
+{
+	int n = 10;
+	MAL_DBG("%d: reset" NL, mal->def->index);
+
+	set_mal_dcrn(mal, MAL_CFG, MAL_CFG_SR);
+
+	/* Wait for reset to complete (1 system clock) */
+	while ((get_mal_dcrn(mal, MAL_CFG) & MAL_CFG_SR) && n)
+		--n;
+
+	if (unlikely(!n))
+		printk(KERN_ERR "mal%d: reset timeout\n", mal->def->index);
+}
+
+int mal_get_regs_len(struct ibm_ocp_mal *mal)
+{
+	return sizeof(struct emac_ethtool_regs_subhdr) +
+	    sizeof(struct ibm_mal_regs);
+}
+
+void *mal_dump_regs(struct ibm_ocp_mal *mal, void *buf)
+{
+	struct emac_ethtool_regs_subhdr *hdr = buf;
+	struct ibm_mal_regs *regs = (struct ibm_mal_regs *)(hdr + 1);
+	struct ocp_func_mal_data *maldata = mal->def->additions;
+	int i;
+
+	hdr->version = MAL_VERSION;
+	hdr->index = mal->def->index;
+
+	regs->tx_count = maldata->num_tx_chans;
+	regs->rx_count = maldata->num_rx_chans;
+
+	regs->cfg = get_mal_dcrn(mal, MAL_CFG);
+	regs->esr = get_mal_dcrn(mal, MAL_ESR);
+	regs->ier = get_mal_dcrn(mal, MAL_IER);
+	regs->tx_casr = get_mal_dcrn(mal, MAL_TXCASR);
+	regs->tx_carr = get_mal_dcrn(mal, MAL_TXCARR);
+	regs->tx_eobisr = get_mal_dcrn(mal, MAL_TXEOBISR);
+	regs->tx_deir = get_mal_dcrn(mal, MAL_TXDEIR);
+	regs->rx_casr = get_mal_dcrn(mal, MAL_RXCASR);
+	regs->rx_carr = get_mal_dcrn(mal, MAL_RXCARR);
+	regs->rx_eobisr = get_mal_dcrn(mal, MAL_RXEOBISR);
+	regs->rx_deir = get_mal_dcrn(mal, MAL_RXDEIR);
+
+	for (i = 0; i < regs->tx_count; ++i)
+		regs->tx_ctpr[i] = get_mal_dcrn(mal, MAL_TXCTPR(i));
+
+	for (i = 0; i < regs->rx_count; ++i) {
+		regs->rx_ctpr[i] = get_mal_dcrn(mal, MAL_RXCTPR(i));
+		regs->rcbs[i] = get_mal_dcrn(mal, MAL_RCBS(i));
+	}
+	return regs + 1;
 }
 
 static int __init mal_probe(struct ocp_device *ocpdev)
 {
-	struct ibm_ocp_mal *mal = NULL;
+	struct ibm_ocp_mal *mal;
 	struct ocp_func_mal_data *maldata;
-	int err = 0;
+	int err = 0, i, bd_size;
+
+	MAL_DBG("%d: probe" NL, ocpdev->def->index);
 
-	maldata = (struct ocp_func_mal_data *)ocpdev->def->additions;
+	maldata = ocpdev->def->additions;
 	if (maldata == NULL) {
-		printk(KERN_ERR "mal%d: Missing additional datas !\n",
+		printk(KERN_ERR "mal%d: missing additional data!\n",
 		       ocpdev->def->index);
 		return -ENODEV;
 	}
 
-	mal = kmalloc(sizeof(struct ibm_ocp_mal), GFP_KERNEL);
-	if (mal == NULL) {
+	mal = kzalloc(sizeof(struct ibm_ocp_mal), GFP_KERNEL);
+	if (!mal) {
 		printk(KERN_ERR
-		       "mal%d: Out of memory allocating MAL structure !\n",
+		       "mal%d: out of memory allocating MAL structure!\n",
 		       ocpdev->def->index);
 		return -ENOMEM;
 	}
-	memset(mal, 0, sizeof(*mal));
-
-	switch (ocpdev->def->index) {
-	case 0:
-		mal->dcrbase = DCRN_MAL_BASE;
-		break;
-#ifdef DCRN_MAL1_BASE
-	case 1:
-		mal->dcrbase = DCRN_MAL1_BASE;
-		break;
-#endif
-	default:
-		BUG();
-	}
-
-	/**************************/
+	mal->dcrbase = maldata->dcr_base;
+	mal->def = ocpdev->def;
 
-	INIT_LIST_HEAD(&mal->commac);
+	INIT_LIST_HEAD(&mal->poll_list);
+	set_bit(__LINK_STATE_START, &mal->poll_dev.state);
+	mal->poll_dev.weight = CONFIG_IBM_EMAC_POLL_WEIGHT;
+	mal->poll_dev.poll = mal_poll;
+	mal->poll_dev.priv = mal;
+	atomic_set(&mal->poll_dev.refcnt, 1);
 
-	set_mal_dcrn(mal, DCRN_MALRXCARR, 0xFFFFFFFF);
-	set_mal_dcrn(mal, DCRN_MALTXCARR, 0xFFFFFFFF);
+	INIT_LIST_HEAD(&mal->list);
 
-	set_mal_dcrn(mal, DCRN_MALCR, MALCR_MMSR);	/* 384 */
-	/* FIXME: Add delay */
+	/* Load power-on reset defaults */
+	mal_reset(mal);
 
 	/* Set the MAL configuration register */
-	set_mal_dcrn(mal, DCRN_MALCR,
-		     MALCR_PLBB | MALCR_OPBBL | MALCR_LEA |
-		     MALCR_PLBLT_DEFAULT);
-
-	/* It would be nice to allocate buffers separately for each
-	 * channel, but we can't because the channels share the upper
-	 * 13 bits of address lines.  Each channels buffer must also
-	 * be 4k aligned, so we allocate 4k for each channel.  This is
-	 * inefficient FIXME: do better, if possible */
-	mal->tx_virt_addr = dma_alloc_coherent(&ocpdev->dev,
-					       MAL_DT_ALIGN *
-					       maldata->num_tx_chans,
-					       &mal->tx_phys_addr, GFP_KERNEL);
-	if (mal->tx_virt_addr == NULL) {
+	set_mal_dcrn(mal, MAL_CFG, MAL_CFG_DEFAULT | MAL_CFG_PLBB |
+		     MAL_CFG_OPBBL | MAL_CFG_LEA);
+
+	mal_enable_eob_irq(mal);
+
+	/* Allocate space for BD rings */
+	BUG_ON(maldata->num_tx_chans <= 0 || maldata->num_tx_chans > 32);
+	BUG_ON(maldata->num_rx_chans <= 0 || maldata->num_rx_chans > 32);
+	bd_size = sizeof(struct mal_descriptor) *
+	    (NUM_TX_BUFF * maldata->num_tx_chans +
+	     NUM_RX_BUFF * maldata->num_rx_chans);
+	mal->bd_virt =
+	    dma_alloc_coherent(&ocpdev->dev, bd_size, &mal->bd_dma, GFP_KERNEL);
+
+	if (!mal->bd_virt) {
 		printk(KERN_ERR
-		       "mal%d: Out of memory allocating MAL descriptors !\n",
-		       ocpdev->def->index);
+		       "mal%d: out of memory allocating RX/TX descriptors!\n",
+		       mal->def->index);
 		err = -ENOMEM;
 		goto fail;
 	}
+	memset(mal->bd_virt, 0, bd_size);
 
-	/* God, oh, god, I hate DCRs */
-	set_mal_dcrn(mal, DCRN_MALTXCTP0R, mal->tx_phys_addr);
-#ifdef DCRN_MALTXCTP1R
-	if (maldata->num_tx_chans > 1)
-		set_mal_dcrn(mal, DCRN_MALTXCTP1R,
-			     mal->tx_phys_addr + MAL_DT_ALIGN);
-#endif				/* DCRN_MALTXCTP1R */
-#ifdef DCRN_MALTXCTP2R
-	if (maldata->num_tx_chans > 2)
-		set_mal_dcrn(mal, DCRN_MALTXCTP2R,
-			     mal->tx_phys_addr + 2 * MAL_DT_ALIGN);
-#endif				/* DCRN_MALTXCTP2R */
-#ifdef DCRN_MALTXCTP3R
-	if (maldata->num_tx_chans > 3)
-		set_mal_dcrn(mal, DCRN_MALTXCTP3R,
-			     mal->tx_phys_addr + 3 * MAL_DT_ALIGN);
-#endif				/* DCRN_MALTXCTP3R */
-#ifdef DCRN_MALTXCTP4R
-	if (maldata->num_tx_chans > 4)
-		set_mal_dcrn(mal, DCRN_MALTXCTP4R,
-			     mal->tx_phys_addr + 4 * MAL_DT_ALIGN);
-#endif				/* DCRN_MALTXCTP4R */
-#ifdef DCRN_MALTXCTP5R
-	if (maldata->num_tx_chans > 5)
-		set_mal_dcrn(mal, DCRN_MALTXCTP5R,
-			     mal->tx_phys_addr + 5 * MAL_DT_ALIGN);
-#endif				/* DCRN_MALTXCTP5R */
-#ifdef DCRN_MALTXCTP6R
-	if (maldata->num_tx_chans > 6)
-		set_mal_dcrn(mal, DCRN_MALTXCTP6R,
-			     mal->tx_phys_addr + 6 * MAL_DT_ALIGN);
-#endif				/* DCRN_MALTXCTP6R */
-#ifdef DCRN_MALTXCTP7R
-	if (maldata->num_tx_chans > 7)
-		set_mal_dcrn(mal, DCRN_MALTXCTP7R,
-			     mal->tx_phys_addr + 7 * MAL_DT_ALIGN);
-#endif				/* DCRN_MALTXCTP7R */
-
-	mal->rx_virt_addr = dma_alloc_coherent(&ocpdev->dev,
-					       MAL_DT_ALIGN *
-					       maldata->num_rx_chans,
-					       &mal->rx_phys_addr, GFP_KERNEL);
-
-	set_mal_dcrn(mal, DCRN_MALRXCTP0R, mal->rx_phys_addr);
-#ifdef DCRN_MALRXCTP1R
-	if (maldata->num_rx_chans > 1)
-		set_mal_dcrn(mal, DCRN_MALRXCTP1R,
-			     mal->rx_phys_addr + MAL_DT_ALIGN);
-#endif				/* DCRN_MALRXCTP1R */
-#ifdef DCRN_MALRXCTP2R
-	if (maldata->num_rx_chans > 2)
-		set_mal_dcrn(mal, DCRN_MALRXCTP2R,
-			     mal->rx_phys_addr + 2 * MAL_DT_ALIGN);
-#endif				/* DCRN_MALRXCTP2R */
-#ifdef DCRN_MALRXCTP3R
-	if (maldata->num_rx_chans > 3)
-		set_mal_dcrn(mal, DCRN_MALRXCTP3R,
-			     mal->rx_phys_addr + 3 * MAL_DT_ALIGN);
-#endif				/* DCRN_MALRXCTP3R */
+	for (i = 0; i < maldata->num_tx_chans; ++i)
+		set_mal_dcrn(mal, MAL_TXCTPR(i), mal->bd_dma +
+			     sizeof(struct mal_descriptor) *
+			     mal_tx_bd_offset(mal, i));
+
+	for (i = 0; i < maldata->num_rx_chans; ++i)
+		set_mal_dcrn(mal, MAL_RXCTPR(i), mal->bd_dma +
+			     sizeof(struct mal_descriptor) *
+			     mal_rx_bd_offset(mal, i));
 
 	err = request_irq(maldata->serr_irq, mal_serr, 0, "MAL SERR", mal);
 	if (err)
-		goto fail;
-	err = request_irq(maldata->txde_irq, mal_txde, 0, "MAL TX DE ", mal);
+		goto fail2;
+	err = request_irq(maldata->txde_irq, mal_txde, 0, "MAL TX DE", mal);
 	if (err)
-		goto fail;
+		goto fail3;
 	err = request_irq(maldata->txeob_irq, mal_txeob, 0, "MAL TX EOB", mal);
 	if (err)
-		goto fail;
+		goto fail4;
 	err = request_irq(maldata->rxde_irq, mal_rxde, 0, "MAL RX DE", mal);
 	if (err)
-		goto fail;
+		goto fail5;
 	err = request_irq(maldata->rxeob_irq, mal_rxeob, 0, "MAL RX EOB", mal);
 	if (err)
-		goto fail;
+		goto fail6;
 
-	set_mal_dcrn(mal, DCRN_MALIER,
-		     MALIER_DE | MALIER_NE | MALIER_TE |
-		     MALIER_OPBE | MALIER_PLBE);
+	/* Enable all MAL SERR interrupt sources */
+	set_mal_dcrn(mal, MAL_IER, MAL_IER_EVENTS);
 
-	/* Advertise me to the rest of the world */
+	/* Advertise this instance to the rest of the world */
 	ocp_set_drvdata(ocpdev, mal);
 
-	printk(KERN_INFO "mal%d: Initialized, %d tx channels, %d rx channels\n",
-	       ocpdev->def->index, maldata->num_tx_chans,
-	       maldata->num_rx_chans);
+	mal_dbg_register(mal->def->index, mal);
 
+	printk(KERN_INFO "mal%d: initialized, %d TX channels, %d RX channels\n",
+	       mal->def->index, maldata->num_tx_chans, maldata->num_rx_chans);
 	return 0;
 
+      fail6:
+	free_irq(maldata->rxde_irq, mal);
+      fail5:
+	free_irq(maldata->txeob_irq, mal);
+      fail4:
+	free_irq(maldata->txde_irq, mal);
+      fail3:
+	free_irq(maldata->serr_irq, mal);
+      fail2:
+	dma_free_coherent(&ocpdev->dev, bd_size, mal->bd_virt, mal->bd_dma);
       fail:
-	/* FIXME: dispose requested IRQs ! */
-	if (err && mal)
-		kfree(mal);
+	kfree(mal);
 	return err;
 }
 
 static void __exit mal_remove(struct ocp_device *ocpdev)
 {
 	struct ibm_ocp_mal *mal = ocp_get_drvdata(ocpdev);
-	struct ocp_func_mal_data *maldata = ocpdev->def->additions;
+	struct ocp_func_mal_data *maldata = mal->def->additions;
+
+	MAL_DBG("%d: remove" NL, mal->def->index);
 
-	BUG_ON(!maldata);
+	/* Syncronize with scheduled polling, 
+	   stolen from net/core/dev.c:dev_close() 
+	 */
+	clear_bit(__LINK_STATE_START, &mal->poll_dev.state);
+	netif_poll_disable(&mal->poll_dev);
+
+	if (!list_empty(&mal->list)) {
+		/* This is *very* bad */
+		printk(KERN_EMERG
+		       "mal%d: commac list is not empty on remove!\n",
+		       mal->def->index);
+	}
 
 	ocp_set_drvdata(ocpdev, NULL);
 
-	/* FIXME: shut down the MAL, deal with dependency with emac */
 	free_irq(maldata->serr_irq, mal);
 	free_irq(maldata->txde_irq, mal);
 	free_irq(maldata->txeob_irq, mal);
 	free_irq(maldata->rxde_irq, mal);
 	free_irq(maldata->rxeob_irq, mal);
 
-	if (mal->tx_virt_addr)
-		dma_free_coherent(&ocpdev->dev,
-				  MAL_DT_ALIGN * maldata->num_tx_chans,
-				  mal->tx_virt_addr, mal->tx_phys_addr);
+	mal_reset(mal);
 
-	if (mal->rx_virt_addr)
-		dma_free_coherent(&ocpdev->dev,
-				  MAL_DT_ALIGN * maldata->num_rx_chans,
-				  mal->rx_virt_addr, mal->rx_phys_addr);
+	mal_dbg_register(mal->def->index, NULL);
+
+	dma_free_coherent(&ocpdev->dev,
+			  sizeof(struct mal_descriptor) *
+			  (NUM_TX_BUFF * maldata->num_tx_chans +
+			   NUM_RX_BUFF * maldata->num_rx_chans), mal->bd_virt,
+			  mal->bd_dma);
 
 	kfree(mal);
 }
 
 /* Structure for a device driver */
 static struct ocp_device_id mal_ids[] = {
-	{.vendor = OCP_ANY_ID,.function = OCP_FUNC_MAL},
-	{.vendor = OCP_VENDOR_INVALID}
+	{ .vendor = OCP_VENDOR_IBM, .function = OCP_FUNC_MAL },
+	{ .vendor = OCP_VENDOR_INVALID}
 };
 
 static struct ocp_driver mal_driver = {
@@ -441,23 +570,14 @@ static struct ocp_driver mal_driver = {
 	.remove = mal_remove,
 };
 
-static int __init init_mals(void)
+int __init mal_init(void)
 {
-	int rc;
-
-	rc = ocp_register_driver(&mal_driver);
-	if (rc < 0) {
-		ocp_unregister_driver(&mal_driver);
-		return -ENODEV;
-	}
-
-	return 0;
+	MAL_DBG(": init" NL);
+	return ocp_register_driver(&mal_driver);
 }
 
-static void __exit exit_mals(void)
+void __exit mal_exit(void)
 {
+	MAL_DBG(": exit" NL);
 	ocp_unregister_driver(&mal_driver);
 }
-
-module_init(init_mals);
-module_exit(exit_mals);
diff --git a/drivers/net/ibm_emac/ibm_emac_mal.h b/drivers/net/ibm_emac/ibm_emac_mal.h
index dd9f0dabc6e0..15b0bdae26ac 100644
--- a/drivers/net/ibm_emac/ibm_emac_mal.h
+++ b/drivers/net/ibm_emac/ibm_emac_mal.h
@@ -1,131 +1,267 @@
-#ifndef _IBM_EMAC_MAL_H
-#define _IBM_EMAC_MAL_H
+/*
+ * drivers/net/ibm_emac/ibm_emac_mal.h
+ *
+ * Memory Access Layer (MAL) support
+ * 
+ * Copyright (c) 2004, 2005 Zultys Technologies.
+ * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
+ *
+ * Based on original work by
+ *      Armin Kuster <akuster@mvista.com>
+ *      Copyright 2002 MontaVista Softare Inc.
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ *
+ */
+#ifndef __IBM_EMAC_MAL_H_
+#define __IBM_EMAC_MAL_H_
 
+#include <linux/config.h>
+#include <linux/init.h>
 #include <linux/list.h>
+#include <linux/netdevice.h>
 
-#define MAL_DT_ALIGN	(4096)	/* Alignment for each channel's descriptor table */
+#include <asm/io.h>
 
-#define MAL_CHAN_MASK(chan)	(0x80000000 >> (chan))
+/*
+ * These MAL "versions" probably aren't the real versions IBM uses for these 
+ * MAL cores, I assigned them just to make #ifdefs in this file nicer and 
+ * reflect the fact that 40x and 44x have slightly different MALs. --ebs
+ */
+#if defined(CONFIG_405GP) || defined(CONFIG_405GPR) || defined(CONFIG_405EP) || \
+    defined(CONFIG_440EP) || defined(CONFIG_NP405H)
+#define MAL_VERSION		1
+#elif defined(CONFIG_440GP) || defined(CONFIG_440GX) || defined(CONFIG_440SP)
+#define MAL_VERSION		2
+#else
+#error "Unknown SoC, please check chip manual and choose MAL 'version'"
+#endif
+
+/* MALx DCR registers */
+#define	MAL_CFG			0x00
+#define	  MAL_CFG_SR		0x80000000
+#define   MAL_CFG_PLBB		0x00004000
+#define   MAL_CFG_OPBBL		0x00000080
+#define   MAL_CFG_EOPIE		0x00000004
+#define   MAL_CFG_LEA		0x00000002
+#define   MAL_CFG_SD		0x00000001
+#if MAL_VERSION == 1
+#define   MAL_CFG_PLBP_MASK	0x00c00000
+#define   MAL_CFG_PLBP_10	0x00800000
+#define   MAL_CFG_GA		0x00200000
+#define   MAL_CFG_OA		0x00100000
+#define   MAL_CFG_PLBLE		0x00080000
+#define   MAL_CFG_PLBT_MASK	0x00078000
+#define   MAL_CFG_DEFAULT	(MAL_CFG_PLBP_10 | MAL_CFG_PLBT_MASK)
+#elif MAL_VERSION == 2
+#define   MAL_CFG_RPP_MASK	0x00c00000
+#define   MAL_CFG_RPP_10	0x00800000
+#define   MAL_CFG_RMBS_MASK	0x00300000
+#define   MAL_CFG_WPP_MASK	0x000c0000
+#define   MAL_CFG_WPP_10	0x00080000
+#define   MAL_CFG_WMBS_MASK	0x00030000
+#define   MAL_CFG_PLBLE		0x00008000
+#define   MAL_CFG_DEFAULT	(MAL_CFG_RMBS_MASK | MAL_CFG_WMBS_MASK | \
+				 MAL_CFG_RPP_10 | MAL_CFG_WPP_10)
+#else
+#error "Unknown MAL version"
+#endif
+
+#define MAL_ESR			0x01
+#define   MAL_ESR_EVB		0x80000000
+#define   MAL_ESR_CIDT		0x40000000
+#define   MAL_ESR_CID_MASK	0x3e000000
+#define   MAL_ESR_CID_SHIFT	25
+#define   MAL_ESR_DE		0x00100000
+#define   MAL_ESR_OTE		0x00040000
+#define   MAL_ESR_OSE		0x00020000
+#define   MAL_ESR_PEIN		0x00010000
+#define   MAL_ESR_DEI		0x00000010
+#define   MAL_ESR_OTEI		0x00000004
+#define   MAL_ESR_OSEI		0x00000002
+#define   MAL_ESR_PBEI		0x00000001
+#if MAL_VERSION == 1
+#define   MAL_ESR_ONE		0x00080000
+#define   MAL_ESR_ONEI		0x00000008
+#elif MAL_VERSION == 2
+#define   MAL_ESR_PTE		0x00800000
+#define   MAL_ESR_PRE		0x00400000
+#define   MAL_ESR_PWE		0x00200000
+#define   MAL_ESR_PTEI		0x00000080
+#define   MAL_ESR_PREI		0x00000040
+#define   MAL_ESR_PWEI		0x00000020
+#else
+#error "Unknown MAL version"
+#endif
+
+#define MAL_IER			0x02
+#define   MAL_IER_DE		0x00000010
+#define   MAL_IER_OTE		0x00000004
+#define   MAL_IER_OE		0x00000002
+#define   MAL_IER_PE		0x00000001
+#if MAL_VERSION == 1
+#define   MAL_IER_NWE		0x00000008
+#define   MAL_IER_SOC_EVENTS	MAL_IER_NWE
+#elif MAL_VERSION == 2
+#define   MAL_IER_PT		0x00000080
+#define   MAL_IER_PRE		0x00000040
+#define   MAL_IER_PWE		0x00000020
+#define   MAL_IER_SOC_EVENTS	(MAL_IER_PT | MAL_IER_PRE | MAL_IER_PWE)
+#else
+#error "Unknown MAL version"
+#endif
+#define   MAL_IER_EVENTS	(MAL_IER_SOC_EVENTS | MAL_IER_OTE | \
+				 MAL_IER_OTE | MAL_IER_OE | MAL_IER_PE)
+
+#define MAL_TXCASR		0x04
+#define MAL_TXCARR		0x05
+#define MAL_TXEOBISR		0x06
+#define MAL_TXDEIR		0x07
+#define MAL_RXCASR		0x10
+#define MAL_RXCARR		0x11
+#define MAL_RXEOBISR		0x12
+#define MAL_RXDEIR		0x13
+#define MAL_TXCTPR(n)		((n) + 0x20)
+#define MAL_RXCTPR(n)		((n) + 0x40)
+#define MAL_RCBS(n)		((n) + 0x60)
+
+/* In reality MAL can handle TX buffers up to 4095 bytes long, 
+ * but this isn't a good round number :) 		 --ebs
+ */
+#define MAL_MAX_TX_SIZE		4080
+#define MAL_MAX_RX_SIZE		4080
+
+static inline int mal_rx_size(int len)
+{
+	len = (len + 0xf) & ~0xf;
+	return len > MAL_MAX_RX_SIZE ? MAL_MAX_RX_SIZE : len;
+}
+
+static inline int mal_tx_chunks(int len)
+{
+	return (len + MAL_MAX_TX_SIZE - 1) / MAL_MAX_TX_SIZE;
+}
+
+#define MAL_CHAN_MASK(n)	(0x80000000 >> (n))
 
 /* MAL Buffer Descriptor structure */
 struct mal_descriptor {
-	unsigned short ctrl;	/* MAL / Commac status control bits */
-	short data_len;		/* Max length is 4K-1 (12 bits)     */
-	unsigned char *data_ptr;	/* pointer to actual data buffer    */
-} __attribute__ ((packed));
+	u16 ctrl;		/* MAL / Commac status control bits */
+	u16 data_len;		/* Max length is 4K-1 (12 bits)     */
+	u32 data_ptr;		/* pointer to actual data buffer    */
+};
 
 /* the following defines are for the MadMAL status and control registers. */
 /* MADMAL transmit and receive status/control bits  */
-#define MAL_RX_CTRL_EMPTY		0x8000
-#define MAL_RX_CTRL_WRAP		0x4000
-#define MAL_RX_CTRL_CM			0x2000
-#define MAL_RX_CTRL_LAST		0x1000
-#define MAL_RX_CTRL_FIRST		0x0800
-#define MAL_RX_CTRL_INTR		0x0400
-
-#define MAL_TX_CTRL_READY		0x8000
-#define MAL_TX_CTRL_WRAP		0x4000
-#define MAL_TX_CTRL_CM			0x2000
-#define MAL_TX_CTRL_LAST		0x1000
-#define MAL_TX_CTRL_INTR		0x0400
+#define MAL_RX_CTRL_EMPTY	0x8000
+#define MAL_RX_CTRL_WRAP	0x4000
+#define MAL_RX_CTRL_CM		0x2000
+#define MAL_RX_CTRL_LAST	0x1000
+#define MAL_RX_CTRL_FIRST	0x0800
+#define MAL_RX_CTRL_INTR	0x0400
+#define MAL_RX_CTRL_SINGLE	(MAL_RX_CTRL_LAST | MAL_RX_CTRL_FIRST)
+#define MAL_IS_SINGLE_RX(ctrl)	(((ctrl) & MAL_RX_CTRL_SINGLE) == MAL_RX_CTRL_SINGLE)
+
+#define MAL_TX_CTRL_READY	0x8000
+#define MAL_TX_CTRL_WRAP	0x4000
+#define MAL_TX_CTRL_CM		0x2000
+#define MAL_TX_CTRL_LAST	0x1000
+#define MAL_TX_CTRL_INTR	0x0400
 
 struct mal_commac_ops {
-	void (*txeob) (void *dev, u32 chanmask);
-	void (*txde) (void *dev, u32 chanmask);
-	void (*rxeob) (void *dev, u32 chanmask);
-	void (*rxde) (void *dev, u32 chanmask);
+	void	(*poll_tx) (void *dev);
+	int	(*poll_rx) (void *dev, int budget);
+	int	(*peek_rx) (void *dev);
+	void	(*rxde) (void *dev);
 };
 
 struct mal_commac {
-	struct mal_commac_ops *ops;
-	void *dev;
-	u32 tx_chan_mask, rx_chan_mask;
-	struct list_head list;
+	struct mal_commac_ops	*ops;
+	void			*dev;
+	struct list_head	poll_list;
+	int			rx_stopped;
+
+	u32			tx_chan_mask;
+	u32			rx_chan_mask;
+	struct list_head	list;
 };
 
 struct ibm_ocp_mal {
-	int dcrbase;
+	int			dcrbase;
 
-	struct list_head commac;
-	u32 tx_chan_mask, rx_chan_mask;
+	struct list_head	poll_list;
+	struct net_device	poll_dev;
 
-	dma_addr_t tx_phys_addr;
-	struct mal_descriptor *tx_virt_addr;
+	struct list_head	list;
+	u32			tx_chan_mask;
+	u32			rx_chan_mask;
 
-	dma_addr_t rx_phys_addr;
-	struct mal_descriptor *rx_virt_addr;
-};
+	dma_addr_t		bd_dma;
+	struct mal_descriptor	*bd_virt;
 
-#define GET_MAL_STANZA(base,dcrn) \
-	case base: \
-		x = mfdcr(dcrn(base)); \
-		break;
-
-#define SET_MAL_STANZA(base,dcrn, val) \
-	case base: \
-		mtdcr(dcrn(base), (val)); \
-		break;
-
-#define GET_MAL0_STANZA(dcrn) GET_MAL_STANZA(DCRN_MAL_BASE,dcrn)
-#define SET_MAL0_STANZA(dcrn,val) SET_MAL_STANZA(DCRN_MAL_BASE,dcrn,val)
-
-#ifdef DCRN_MAL1_BASE
-#define GET_MAL1_STANZA(dcrn) GET_MAL_STANZA(DCRN_MAL1_BASE,dcrn)
-#define SET_MAL1_STANZA(dcrn,val) SET_MAL_STANZA(DCRN_MAL1_BASE,dcrn,val)
-#else				/* ! DCRN_MAL1_BASE */
-#define GET_MAL1_STANZA(dcrn)
-#define SET_MAL1_STANZA(dcrn,val)
-#endif
+	struct ocp_def		*def;
+};
 
-#define get_mal_dcrn(mal, dcrn) ({ \
-	u32 x; \
-	switch ((mal)->dcrbase) { \
-		GET_MAL0_STANZA(dcrn) \
-		GET_MAL1_STANZA(dcrn) \
-	default: \
-		x = 0; \
-		BUG(); \
-	} \
-x; })
-
-#define set_mal_dcrn(mal, dcrn, val) do { \
-	switch ((mal)->dcrbase) { \
-		SET_MAL0_STANZA(dcrn,val) \
-		SET_MAL1_STANZA(dcrn,val) \
-	default: \
-		BUG(); \
-	} } while (0)
-
-static inline void mal_enable_tx_channels(struct ibm_ocp_mal *mal, u32 chanmask)
+static inline u32 get_mal_dcrn(struct ibm_ocp_mal *mal, int reg)
 {
-	set_mal_dcrn(mal, DCRN_MALTXCASR,
-		     get_mal_dcrn(mal, DCRN_MALTXCASR) | chanmask);
+	return mfdcr(mal->dcrbase + reg);
 }
 
-static inline void mal_disable_tx_channels(struct ibm_ocp_mal *mal,
-					   u32 chanmask)
+static inline void set_mal_dcrn(struct ibm_ocp_mal *mal, int reg, u32 val)
 {
-	set_mal_dcrn(mal, DCRN_MALTXCARR, chanmask);
+	mtdcr(mal->dcrbase + reg, val);
 }
 
-static inline void mal_enable_rx_channels(struct ibm_ocp_mal *mal, u32 chanmask)
-{
-	set_mal_dcrn(mal, DCRN_MALRXCASR,
-		     get_mal_dcrn(mal, DCRN_MALRXCASR) | chanmask);
-}
+/* Register MAL devices */
+int mal_init(void) __init;
+void mal_exit(void) __exit;
 
-static inline void mal_disable_rx_channels(struct ibm_ocp_mal *mal,
-					   u32 chanmask)
-{
-	set_mal_dcrn(mal, DCRN_MALRXCARR, chanmask);
-}
+int mal_register_commac(struct ibm_ocp_mal *mal,
+			struct mal_commac *commac) __init;
+void mal_unregister_commac(struct ibm_ocp_mal *mal,
+			   struct mal_commac *commac) __exit;
+int mal_set_rcbs(struct ibm_ocp_mal *mal, int channel, unsigned long size);
+
+/* Returns BD ring offset for a particular channel
+   (in 'struct mal_descriptor' elements)
+*/
+int mal_tx_bd_offset(struct ibm_ocp_mal *mal, int channel);
+int mal_rx_bd_offset(struct ibm_ocp_mal *mal, int channel);
+
+void mal_enable_tx_channel(struct ibm_ocp_mal *mal, int channel);
+void mal_disable_tx_channel(struct ibm_ocp_mal *mal, int channel);
+void mal_enable_rx_channel(struct ibm_ocp_mal *mal, int channel);
+void mal_disable_rx_channel(struct ibm_ocp_mal *mal, int channel);
 
-extern int mal_register_commac(struct ibm_ocp_mal *mal,
-			       struct mal_commac *commac);
-extern int mal_unregister_commac(struct ibm_ocp_mal *mal,
-				 struct mal_commac *commac);
+/* Add/remove EMAC to/from MAL polling list */
+void mal_poll_add(struct ibm_ocp_mal *mal, struct mal_commac *commac);
+void mal_poll_del(struct ibm_ocp_mal *mal, struct mal_commac *commac);
+
+/* Ethtool MAL registers */
+struct ibm_mal_regs {
+	u32 tx_count;
+	u32 rx_count;
+
+	u32 cfg;
+	u32 esr;
+	u32 ier;
+	u32 tx_casr;
+	u32 tx_carr;
+	u32 tx_eobisr;
+	u32 tx_deir;
+	u32 rx_casr;
+	u32 rx_carr;
+	u32 rx_eobisr;
+	u32 rx_deir;
+	u32 tx_ctpr[32];
+	u32 rx_ctpr[32];
+	u32 rcbs[32];
+};
 
-extern int mal_set_rcbs(struct ibm_ocp_mal *mal, int channel,
-			unsigned long size);
+int mal_get_regs_len(struct ibm_ocp_mal *mal);
+void *mal_dump_regs(struct ibm_ocp_mal *mal, void *buf);
 
-#endif				/* _IBM_EMAC_MAL_H */
+#endif				/* __IBM_EMAC_MAL_H_ */
diff --git a/drivers/net/ibm_emac/ibm_emac_phy.c b/drivers/net/ibm_emac/ibm_emac_phy.c
index 14213f090e91..a27e49cfe43b 100644
--- a/drivers/net/ibm_emac/ibm_emac_phy.c
+++ b/drivers/net/ibm_emac/ibm_emac_phy.c
@@ -1,96 +1,80 @@
 /*
- * ibm_ocp_phy.c
+ * drivers/net/ibm_emac/ibm_emac_phy.c
  *
- * PHY drivers for the ibm ocp ethernet driver. Borrowed
- * from sungem_phy.c, though I only kept the generic MII
+ * Driver for PowerPC 4xx on-chip ethernet controller, PHY support.
+ * Borrowed from sungem_phy.c, though I only kept the generic MII
  * driver for now.
  * 
  * This file should be shared with other drivers or eventually
  * merged as the "low level" part of miilib
  * 
  * (c) 2003, Benjamin Herrenscmidt (benh@kernel.crashing.org)
+ * (c) 2004-2005, Eugene Surovegin <ebs@ebshome.net>
  *
  */
-
 #include <linux/config.h>
-
 #include <linux/module.h>
-
 #include <linux/kernel.h>
-#include <linux/sched.h>
 #include <linux/types.h>
 #include <linux/netdevice.h>
-#include <linux/etherdevice.h>
 #include <linux/mii.h>
 #include <linux/ethtool.h>
 #include <linux/delay.h>
 
+#include <asm/ocp.h>
+
 #include "ibm_emac_phy.h"
 
-static int reset_one_mii_phy(struct mii_phy *phy, int phy_id)
+static inline int phy_read(struct mii_phy *phy, int reg)
+{
+	return phy->mdio_read(phy->dev, phy->address, reg);
+}
+
+static inline void phy_write(struct mii_phy *phy, int reg, int val)
 {
-	u16 val;
+	phy->mdio_write(phy->dev, phy->address, reg, val);
+}
+
+int mii_reset_phy(struct mii_phy *phy)
+{
+	int val;
 	int limit = 10000;
 
-	val = __phy_read(phy, phy_id, MII_BMCR);
+	val = phy_read(phy, MII_BMCR);
 	val &= ~BMCR_ISOLATE;
 	val |= BMCR_RESET;
-	__phy_write(phy, phy_id, MII_BMCR, val);
+	phy_write(phy, MII_BMCR, val);
 
-	udelay(100);
+	udelay(300);
 
 	while (limit--) {
-		val = __phy_read(phy, phy_id, MII_BMCR);
-		if ((val & BMCR_RESET) == 0)
+		val = phy_read(phy, MII_BMCR);
+		if (val >= 0 && (val & BMCR_RESET) == 0)
 			break;
 		udelay(10);
 	}
 	if ((val & BMCR_ISOLATE) && limit > 0)
-		__phy_write(phy, phy_id, MII_BMCR, val & ~BMCR_ISOLATE);
-
-	return (limit <= 0);
-}
-
-static int cis8201_init(struct mii_phy *phy)
-{
-	u16 epcr;
-
-	epcr = phy_read(phy, MII_CIS8201_EPCR);
-	epcr &= ~EPCR_MODE_MASK;
-
-	switch (phy->mode) {
-	case PHY_MODE_TBI:
-		epcr |= EPCR_TBI_MODE;
-		break;
-	case PHY_MODE_RTBI:
-		epcr |= EPCR_RTBI_MODE;
-		break;
-	case PHY_MODE_GMII:
-		epcr |= EPCR_GMII_MODE;
-		break;
-	case PHY_MODE_RGMII:
-	default:
-		epcr |= EPCR_RGMII_MODE;
-	}
+		phy_write(phy, MII_BMCR, val & ~BMCR_ISOLATE);
 
-	phy_write(phy, MII_CIS8201_EPCR, epcr);
-
-	return 0;
+	return limit <= 0;
 }
 
 static int genmii_setup_aneg(struct mii_phy *phy, u32 advertise)
 {
-	u16 ctl, adv;
+	int ctl, adv;
 
-	phy->autoneg = 1;
+	phy->autoneg = AUTONEG_ENABLE;
 	phy->speed = SPEED_10;
 	phy->duplex = DUPLEX_HALF;
-	phy->pause = 0;
+	phy->pause = phy->asym_pause = 0;
 	phy->advertising = advertise;
 
 	/* Setup standard advertise */
 	adv = phy_read(phy, MII_ADVERTISE);
-	adv &= ~(ADVERTISE_ALL | ADVERTISE_100BASE4);
+	if (adv < 0)
+		return adv;
+	adv &= ~(ADVERTISE_ALL | ADVERTISE_100BASE4 | ADVERTISE_PAUSE_CAP |
+		 ADVERTISE_PAUSE_ASYM);
 	if (advertise & ADVERTISED_10baseT_Half)
 		adv |= ADVERTISE_10HALF;
 	if (advertise & ADVERTISED_10baseT_Full)
@@ -99,8 +83,25 @@ static int genmii_setup_aneg(struct mii_phy *phy, u32 advertise)
 		adv |= ADVERTISE_100HALF;
 	if (advertise & ADVERTISED_100baseT_Full)
 		adv |= ADVERTISE_100FULL;
+	if (advertise & ADVERTISED_Pause)
+		adv |= ADVERTISE_PAUSE_CAP;
+	if (advertise & ADVERTISED_Asym_Pause)
+		adv |= ADVERTISE_PAUSE_ASYM;
 	phy_write(phy, MII_ADVERTISE, adv);
 
+	if (phy->features &
+	    (SUPPORTED_1000baseT_Full | SUPPORTED_1000baseT_Half)) {
+		adv = phy_read(phy, MII_CTRL1000);
+		if (adv < 0)
+			return adv;
+		adv &= ~(ADVERTISE_1000FULL | ADVERTISE_1000HALF);
+		if (advertise & ADVERTISED_1000baseT_Full)
+			adv |= ADVERTISE_1000FULL;
+		if (advertise & ADVERTISED_1000baseT_Half)
+			adv |= ADVERTISE_1000HALF;
+		phy_write(phy, MII_CTRL1000, adv);
+	}
+
 	/* Start/Restart aneg */
 	ctl = phy_read(phy, MII_BMCR);
 	ctl |= (BMCR_ANENABLE | BMCR_ANRESTART);
@@ -111,14 +112,16 @@ static int genmii_setup_aneg(struct mii_phy *phy, u32 advertise)
 
 static int genmii_setup_forced(struct mii_phy *phy, int speed, int fd)
 {
-	u16 ctl;
+	int ctl;
 
-	phy->autoneg = 0;
+	phy->autoneg = AUTONEG_DISABLE;
 	phy->speed = speed;
 	phy->duplex = fd;
-	phy->pause = 0;
+	phy->pause = phy->asym_pause = 0;
 
 	ctl = phy_read(phy, MII_BMCR);
+	if (ctl < 0)
+		return ctl;
 	ctl &= ~(BMCR_FULLDPLX | BMCR_SPEED100 | BMCR_ANENABLE);
 
 	/* First reset the PHY */
@@ -132,6 +135,8 @@ static int genmii_setup_forced(struct mii_phy *phy, int speed, int fd)
 		ctl |= BMCR_SPEED100;
 		break;
 	case SPEED_1000:
+		ctl |= BMCR_SPEED1000;
+		break;
 	default:
 		return -EINVAL;
 	}
@@ -144,112 +149,143 @@ static int genmii_setup_forced(struct mii_phy *phy, int speed, int fd)
 
 static int genmii_poll_link(struct mii_phy *phy)
 {
-	u16 status;
+	int status;
 
-	(void)phy_read(phy, MII_BMSR);
+	/* Clear latched value with dummy read */
+	phy_read(phy, MII_BMSR);
 	status = phy_read(phy, MII_BMSR);
-	if ((status & BMSR_LSTATUS) == 0)
+	if (status < 0 || (status & BMSR_LSTATUS) == 0)
 		return 0;
-	if (phy->autoneg && !(status & BMSR_ANEGCOMPLETE))
+	if (phy->autoneg == AUTONEG_ENABLE && !(status & BMSR_ANEGCOMPLETE))
 		return 0;
 	return 1;
 }
 
-#define	MII_CIS8201_ACSR	0x1c
-#define  ACSR_DUPLEX_STATUS	0x0020
-#define  ACSR_SPEED_1000BASET	0x0010
-#define  ACSR_SPEED_100BASET	0x0008
-
-static int cis8201_read_link(struct mii_phy *phy)
+static int genmii_read_link(struct mii_phy *phy)
 {
-	u16 acsr;
+	if (phy->autoneg == AUTONEG_ENABLE) {
+		int glpa = 0;
+		int lpa = phy_read(phy, MII_LPA) & phy_read(phy, MII_ADVERTISE);
+		if (lpa < 0)
+			return lpa;
+
+		if (phy->features &
+		    (SUPPORTED_1000baseT_Full | SUPPORTED_1000baseT_Half)) {
+			int adv = phy_read(phy, MII_CTRL1000);
+			glpa = phy_read(phy, MII_STAT1000);
+
+			if (glpa < 0 || adv < 0)
+				return adv;
+
+			glpa &= adv << 2;
+		}
+
+		phy->speed = SPEED_10;
+		phy->duplex = DUPLEX_HALF;
+		phy->pause = phy->asym_pause = 0;
+
+		if (glpa & (LPA_1000FULL | LPA_1000HALF)) {
+			phy->speed = SPEED_1000;
+			if (glpa & LPA_1000FULL)
+				phy->duplex = DUPLEX_FULL;
+		} else if (lpa & (LPA_100FULL | LPA_100HALF)) {
+			phy->speed = SPEED_100;
+			if (lpa & LPA_100FULL)
+				phy->duplex = DUPLEX_FULL;
+		} else if (lpa & LPA_10FULL)
+			phy->duplex = DUPLEX_FULL;
 
-	if (phy->autoneg) {
-		acsr = phy_read(phy, MII_CIS8201_ACSR);
+		if (phy->duplex == DUPLEX_FULL) {
+			phy->pause = lpa & LPA_PAUSE_CAP ? 1 : 0;
+			phy->asym_pause = lpa & LPA_PAUSE_ASYM ? 1 : 0;
+		}
+	} else {
+		int bmcr = phy_read(phy, MII_BMCR);
+		if (bmcr < 0)
+			return bmcr;
 
-		if (acsr & ACSR_DUPLEX_STATUS)
+		if (bmcr & BMCR_FULLDPLX)
 			phy->duplex = DUPLEX_FULL;
 		else
 			phy->duplex = DUPLEX_HALF;
-		if (acsr & ACSR_SPEED_1000BASET) {
+		if (bmcr & BMCR_SPEED1000)
 			phy->speed = SPEED_1000;
-		} else if (acsr & ACSR_SPEED_100BASET)
+		else if (bmcr & BMCR_SPEED100)
 			phy->speed = SPEED_100;
 		else
 			phy->speed = SPEED_10;
-		phy->pause = 0;
-	}
-	/* On non-aneg, we assume what we put in BMCR is the speed,
-	 * though magic-aneg shouldn't prevent this case from occurring
-	 */
 
+		phy->pause = phy->asym_pause = 0;
+	}
 	return 0;
 }
 
-static int genmii_read_link(struct mii_phy *phy)
+/* Generic implementation for most 10/100/1000 PHYs */
+static struct mii_phy_ops generic_phy_ops = {
+	.setup_aneg	= genmii_setup_aneg,
+	.setup_forced	= genmii_setup_forced,
+	.poll_link	= genmii_poll_link,
+	.read_link	= genmii_read_link
+};
+
+static struct mii_phy_def genmii_phy_def = {
+	.phy_id		= 0x00000000,
+	.phy_id_mask	= 0x00000000,
+	.name		= "Generic MII",
+	.ops		= &generic_phy_ops
+};
+
+/* CIS8201 */
+#define MII_CIS8201_EPCR	0x17
+#define  EPCR_MODE_MASK		0x3000
+#define  EPCR_GMII_MODE		0x0000
+#define  EPCR_RGMII_MODE	0x1000
+#define  EPCR_TBI_MODE		0x2000
+#define  EPCR_RTBI_MODE		0x3000
+
+static int cis8201_init(struct mii_phy *phy)
 {
-	u16 lpa;
+	int epcr;
 
-	if (phy->autoneg) {
-		lpa = phy_read(phy, MII_LPA) & phy_read(phy, MII_ADVERTISE);
+	epcr = phy_read(phy, MII_CIS8201_EPCR);
+	if (epcr < 0)
+		return epcr;
 
-		phy->speed = SPEED_10;
-		phy->duplex = DUPLEX_HALF;
-		phy->pause = 0;
+	epcr &= ~EPCR_MODE_MASK;
 
-		if (lpa & (LPA_100FULL | LPA_100HALF)) {
-			phy->speed = SPEED_100;
-			if (lpa & LPA_100FULL)
-				phy->duplex = DUPLEX_FULL;
-		} else if (lpa & LPA_10FULL)
-			phy->duplex = DUPLEX_FULL;
+	switch (phy->mode) {
+	case PHY_MODE_TBI:
+		epcr |= EPCR_TBI_MODE;
+		break;
+	case PHY_MODE_RTBI:
+		epcr |= EPCR_RTBI_MODE;
+		break;
+	case PHY_MODE_GMII:
+		epcr |= EPCR_GMII_MODE;
+		break;
+	case PHY_MODE_RGMII:
+	default:
+		epcr |= EPCR_RGMII_MODE;
 	}
-	/* On non-aneg, we assume what we put in BMCR is the speed,
-	 * though magic-aneg shouldn't prevent this case from occurring
-	 */
+
+	phy_write(phy, MII_CIS8201_EPCR, epcr);
 
 	return 0;
 }
 
-#define MII_BASIC_FEATURES	(SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full | \
-				 SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full | \
-				 SUPPORTED_Autoneg | SUPPORTED_TP | SUPPORTED_MII)
-#define MII_GBIT_FEATURES	(MII_BASIC_FEATURES | \
-				 SUPPORTED_1000baseT_Half | SUPPORTED_1000baseT_Full)
-
-/* CIS8201 phy ops */
 static struct mii_phy_ops cis8201_phy_ops = {
-	init:cis8201_init,
-	setup_aneg:genmii_setup_aneg,
-	setup_forced:genmii_setup_forced,
-	poll_link:genmii_poll_link,
-	read_link:cis8201_read_link
-};
-
-/* Generic implementation for most 10/100 PHYs */
-static struct mii_phy_ops generic_phy_ops = {
-	setup_aneg:genmii_setup_aneg,
-	setup_forced:genmii_setup_forced,
-	poll_link:genmii_poll_link,
-	read_link:genmii_read_link
+	.init		= cis8201_init,
+	.setup_aneg	= genmii_setup_aneg,
+	.setup_forced	= genmii_setup_forced,
+	.poll_link	= genmii_poll_link,
+	.read_link	= genmii_read_link
 };
 
 static struct mii_phy_def cis8201_phy_def = {
-	phy_id:0x000fc410,
-	phy_id_mask:0x000ffff0,
-	name:"CIS8201 Gigabit Ethernet",
-	features:MII_GBIT_FEATURES,
-	magic_aneg:0,
-	ops:&cis8201_phy_ops
-};
-
-static struct mii_phy_def genmii_phy_def = {
-	phy_id:0x00000000,
-	phy_id_mask:0x00000000,
-	name:"Generic MII",
-	features:MII_BASIC_FEATURES,
-	magic_aneg:0,
-	ops:&generic_phy_ops
+	.phy_id		= 0x000fc410,
+	.phy_id_mask	= 0x000ffff0,
+	.name		= "CIS8201 Gigabit Ethernet",
+	.ops		= &cis8201_phy_ops
 };
 
 static struct mii_phy_def *mii_phy_table[] = {
@@ -258,39 +294,60 @@ static struct mii_phy_def *mii_phy_table[] = {
 	NULL
 };
 
-int mii_phy_probe(struct mii_phy *phy, int mii_id)
+int mii_phy_probe(struct mii_phy *phy, int address)
 {
-	int rc;
-	u32 id;
 	struct mii_phy_def *def;
 	int i;
+	u32 id;
 
-	phy->autoneg = 0;
+	phy->autoneg = AUTONEG_DISABLE;
 	phy->advertising = 0;
-	phy->mii_id = mii_id;
-	phy->speed = 0;
-	phy->duplex = 0;
-	phy->pause = 0;
-
-	/* Take PHY out of isloate mode and reset it. */
-	rc = reset_one_mii_phy(phy, mii_id);
-	if (rc)
+	phy->address = address;
+	phy->speed = SPEED_10;
+	phy->duplex = DUPLEX_HALF;
+	phy->pause = phy->asym_pause = 0;
+
+	/* Take PHY out of isolate mode and reset it. */
+	if (mii_reset_phy(phy))
 		return -ENODEV;
 
 	/* Read ID and find matching entry */
-	id = (phy_read(phy, MII_PHYSID1) << 16 | phy_read(phy, MII_PHYSID2))
-	    & 0xfffffff0;
+	id = (phy_read(phy, MII_PHYSID1) << 16) | phy_read(phy, MII_PHYSID2);
 	for (i = 0; (def = mii_phy_table[i]) != NULL; i++)
 		if ((id & def->phy_id_mask) == def->phy_id)
 			break;
 	/* Should never be NULL (we have a generic entry), but... */
-	if (def == NULL)
+	if (!def)
 		return -ENODEV;
 
 	phy->def = def;
 
+	/* Determine PHY features if needed */
+	phy->features = def->features;
+	if (!phy->features) {
+		u16 bmsr = phy_read(phy, MII_BMSR);
+		if (bmsr & BMSR_ANEGCAPABLE)
+			phy->features |= SUPPORTED_Autoneg;
+		if (bmsr & BMSR_10HALF)
+			phy->features |= SUPPORTED_10baseT_Half;
+		if (bmsr & BMSR_10FULL)
+			phy->features |= SUPPORTED_10baseT_Full;
+		if (bmsr & BMSR_100HALF)
+			phy->features |= SUPPORTED_100baseT_Half;
+		if (bmsr & BMSR_100FULL)
+			phy->features |= SUPPORTED_100baseT_Full;
+		if (bmsr & BMSR_ESTATEN) {
+			u16 esr = phy_read(phy, MII_ESTATUS);
+			if (esr & ESTATUS_1000_TFULL)
+				phy->features |= SUPPORTED_1000baseT_Full;
+			if (esr & ESTATUS_1000_THALF)
+				phy->features |= SUPPORTED_1000baseT_Half;
+		}
+		phy->features |= SUPPORTED_MII;
+	}
+
 	/* Setup default advertising */
-	phy->advertising = def->features;
+	phy->advertising = phy->features;
 
 	return 0;
 }
diff --git a/drivers/net/ibm_emac/ibm_emac_phy.h b/drivers/net/ibm_emac/ibm_emac_phy.h
index 61afbea96563..a70e0fea54c4 100644
--- a/drivers/net/ibm_emac/ibm_emac_phy.h
+++ b/drivers/net/ibm_emac/ibm_emac_phy.h
@@ -1,65 +1,25 @@
-
 /*
- * ibm_emac_phy.h
- *
+ * drivers/net/ibm_emac/ibm_emac_phy.h
  *
- *      Benjamin Herrenschmidt <benh@kernel.crashing.org>
- *      February 2003
+ * Driver for PowerPC 4xx on-chip ethernet controller, PHY support
  *
- * This program is free software; you can redistribute  it and/or modify it
- *  under  the terms of  the GNU General  Public License as published by the
- *  Free Software Foundation;  either version 2 of the  License, or (at your
- *  option) any later version.
+ * Benjamin Herrenschmidt <benh@kernel.crashing.org>
+ * February 2003
  *
- *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR   IMPLIED
- *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
- *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
- *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT,  INDIRECT,
- *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
- *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
- *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *  You should have received a copy of the  GNU General Public License along
- *  with this program; if not, write  to the Free Software Foundation, Inc.,
- *  675 Mass Ave, Cambridge, MA 02139, USA.
+ * Minor additions by Eugene Surovegin <ebs@ebshome.net>, 2004
  *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
  *
  * This file basically duplicates sungem_phy.{c,h} with different PHYs
  * supported. I'm looking into merging that in a single mii layer more
  * flexible than mii.c 
  */
 
-#ifndef _IBM_EMAC_PHY_H_
-#define _IBM_EMAC_PHY_H_
-
-/*
- * PHY mode settings
- * Used for multi-mode capable PHYs
- */
-#define PHY_MODE_NA	0
-#define PHY_MODE_MII	1
-#define PHY_MODE_RMII	2
-#define PHY_MODE_SMII	3
-#define PHY_MODE_RGMII	4
-#define PHY_MODE_TBI	5
-#define PHY_MODE_GMII	6
-#define PHY_MODE_RTBI	7
-#define PHY_MODE_SGMII	8
-
-/*
- * PHY specific registers/values
- */
-
-/* CIS8201 */
-#define MII_CIS8201_EPCR	0x17
-#define EPCR_MODE_MASK		0x3000
-#define EPCR_GMII_MODE		0x0000
-#define EPCR_RGMII_MODE		0x1000
-#define EPCR_TBI_MODE		0x2000
-#define EPCR_RTBI_MODE		0x3000
+#ifndef _IBM_OCP_PHY_H_
+#define _IBM_OCP_PHY_H_
 
 struct mii_phy;
 
@@ -77,7 +37,8 @@ struct mii_phy_ops {
 struct mii_phy_def {
 	u32 phy_id;		/* Concatenated ID1 << 16 | ID2 */
 	u32 phy_id_mask;	/* Significant bits */
-	u32 features;		/* Ethtool SUPPORTED_* defines */
+	u32 features;		/* Ethtool SUPPORTED_* defines or 
+				   0 for autodetect */
 	int magic_aneg;		/* Autoneg does all speed test for us */
 	const char *name;
 	const struct mii_phy_ops *ops;
@@ -86,8 +47,11 @@ struct mii_phy_def {
 /* An instance of a PHY, partially borrowed from mii_if_info */
 struct mii_phy {
 	struct mii_phy_def *def;
-	int advertising;
-	int mii_id;
+	u32 advertising;	/* Ethtool ADVERTISED_* defines */
+	u32 features;		/* Copied from mii_phy_def.features 
+				   or determined automaticaly */
+	int address;		/* PHY address */
+	int mode;		/* PHY mode */
 
 	/* 1: autoneg enabled, 0: disabled */
 	int autoneg;
@@ -98,40 +62,19 @@ struct mii_phy {
 	int speed;
 	int duplex;
 	int pause;
-
-	/* PHY mode - if needed */
-	int mode;
+	int asym_pause;
 
 	/* Provided by host chip */
 	struct net_device *dev;
-	int (*mdio_read) (struct net_device * dev, int mii_id, int reg);
-	void (*mdio_write) (struct net_device * dev, int mii_id, int reg,
+	int (*mdio_read) (struct net_device * dev, int addr, int reg);
+	void (*mdio_write) (struct net_device * dev, int addr, int reg,
 			    int val);
 };
 
 /* Pass in a struct mii_phy with dev, mdio_read and mdio_write
  * filled, the remaining fields will be filled on return
  */
-extern int mii_phy_probe(struct mii_phy *phy, int mii_id);
-
-static inline int __phy_read(struct mii_phy *phy, int id, int reg)
-{
-	return phy->mdio_read(phy->dev, id, reg);
-}
-
-static inline void __phy_write(struct mii_phy *phy, int id, int reg, int val)
-{
-	phy->mdio_write(phy->dev, id, reg, val);
-}
-
-static inline int phy_read(struct mii_phy *phy, int reg)
-{
-	return phy->mdio_read(phy->dev, phy->mii_id, reg);
-}
-
-static inline void phy_write(struct mii_phy *phy, int reg, int val)
-{
-	phy->mdio_write(phy->dev, phy->mii_id, reg, val);
-}
+int mii_phy_probe(struct mii_phy *phy, int address);
+int mii_reset_phy(struct mii_phy *phy);
 
-#endif				/* _IBM_EMAC_PHY_H_ */
+#endif				/* _IBM_OCP_PHY_H_ */
diff --git a/drivers/net/ibm_emac/ibm_emac_rgmii.c b/drivers/net/ibm_emac/ibm_emac_rgmii.c
new file mode 100644
index 000000000000..f0b1ffb2dbbf
--- /dev/null
+++ b/drivers/net/ibm_emac/ibm_emac_rgmii.c
@@ -0,0 +1,201 @@
+/*
+ * drivers/net/ibm_emac/ibm_emac_rgmii.c
+ *
+ * Driver for PowerPC 4xx on-chip ethernet controller, RGMII bridge support.
+ *
+ * Copyright (c) 2004, 2005 Zultys Technologies.
+ * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
+ *
+ * Based on original work by
+ * 	Matt Porter <mporter@kernel.crashing.org>
+ * 	Copyright 2004 MontaVista Software, Inc.
+ * 
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ *
+ */
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/ethtool.h>
+#include <asm/io.h>
+
+#include "ibm_emac_core.h"
+#include "ibm_emac_debug.h"
+
+/* RGMIIx_FER */
+#define RGMII_FER_MASK(idx)	(0x7 << ((idx) * 4))
+#define RGMII_FER_RTBI(idx)	(0x4 << ((idx) * 4))
+#define RGMII_FER_RGMII(idx)	(0x5 << ((idx) * 4))
+#define RGMII_FER_TBI(idx)	(0x6 << ((idx) * 4))
+#define RGMII_FER_GMII(idx)	(0x7 << ((idx) * 4))
+
+/* RGMIIx_SSR */
+#define RGMII_SSR_MASK(idx)	(0x7 << ((idx) * 8))
+#define RGMII_SSR_100(idx)	(0x2 << ((idx) * 8))
+#define RGMII_SSR_1000(idx)	(0x4 << ((idx) * 8))
+
+/* RGMII bridge supports only GMII/TBI and RGMII/RTBI PHYs */
+static inline int rgmii_valid_mode(int phy_mode)
+{
+	return  phy_mode == PHY_MODE_GMII ||
+		phy_mode == PHY_MODE_RGMII ||
+		phy_mode == PHY_MODE_TBI ||
+		phy_mode == PHY_MODE_RTBI;
+}
+
+static inline const char *rgmii_mode_name(int mode)
+{
+	switch (mode) {
+	case PHY_MODE_RGMII:
+		return "RGMII";
+	case PHY_MODE_TBI:
+		return "TBI";
+	case PHY_MODE_GMII:
+		return "GMII";
+	case PHY_MODE_RTBI:
+		return "RTBI";
+	default:
+		BUG();
+	}
+}
+
+static inline u32 rgmii_mode_mask(int mode, int input)
+{
+	switch (mode) {
+	case PHY_MODE_RGMII:
+		return RGMII_FER_RGMII(input);
+	case PHY_MODE_TBI:
+		return RGMII_FER_TBI(input);
+	case PHY_MODE_GMII:
+		return RGMII_FER_GMII(input);
+	case PHY_MODE_RTBI:
+		return RGMII_FER_RTBI(input);
+	default:
+		BUG();
+	}
+}
+
+static int __init rgmii_init(struct ocp_device *ocpdev, int input, int mode)
+{
+	struct ibm_ocp_rgmii *dev = ocp_get_drvdata(ocpdev);
+	struct rgmii_regs *p;
+
+	RGMII_DBG("%d: init(%d, %d)" NL, ocpdev->def->index, input, mode);
+
+	if (!dev) {
+		dev = kzalloc(sizeof(struct ibm_ocp_rgmii), GFP_KERNEL);
+		if (!dev) {
+			printk(KERN_ERR
+			       "rgmii%d: couldn't allocate device structure!\n",
+			       ocpdev->def->index);
+			return -ENOMEM;
+		}
+
+		p = (struct rgmii_regs *)ioremap(ocpdev->def->paddr,
+						 sizeof(struct rgmii_regs));
+		if (!p) {
+			printk(KERN_ERR
+			       "rgmii%d: could not ioremap device registers!\n",
+			       ocpdev->def->index);
+			kfree(dev);
+			return -ENOMEM;
+		}
+
+		dev->base = p;
+		ocp_set_drvdata(ocpdev, dev);
+
+		/* Disable all inputs by default */
+		out_be32(&p->fer, 0);
+	} else
+		p = dev->base;
+
+	/* Enable this input */
+	out_be32(&p->fer, in_be32(&p->fer) | rgmii_mode_mask(mode, input));
+
+	printk(KERN_NOTICE "rgmii%d: input %d in %s mode\n",
+	       ocpdev->def->index, input, rgmii_mode_name(mode));
+
+	++dev->users;
+	return 0;
+}
+
+int __init rgmii_attach(void *emac)
+{
+	struct ocp_enet_private *dev = emac;
+	struct ocp_func_emac_data *emacdata = dev->def->additions;
+
+	/* Check if we need to attach to a RGMII */
+	if (emacdata->rgmii_idx >= 0 && rgmii_valid_mode(emacdata->phy_mode)) {
+		dev->rgmii_input = emacdata->rgmii_mux;
+		dev->rgmii_dev =
+		    ocp_find_device(OCP_VENDOR_IBM, OCP_FUNC_RGMII,
+				    emacdata->rgmii_idx);
+		if (!dev->rgmii_dev) {
+			printk(KERN_ERR "emac%d: unknown rgmii%d!\n",
+			       dev->def->index, emacdata->rgmii_idx);
+			return -ENODEV;
+		}
+		if (rgmii_init
+		    (dev->rgmii_dev, dev->rgmii_input, emacdata->phy_mode)) {
+			printk(KERN_ERR
+			       "emac%d: rgmii%d initialization failed!\n",
+			       dev->def->index, emacdata->rgmii_idx);
+			return -ENODEV;
+		}
+	}
+	return 0;
+}
+
+void rgmii_set_speed(struct ocp_device *ocpdev, int input, int speed)
+{
+	struct ibm_ocp_rgmii *dev = ocp_get_drvdata(ocpdev);
+	u32 ssr = in_be32(&dev->base->ssr) & ~RGMII_SSR_MASK(input);
+
+	RGMII_DBG("%d: speed(%d, %d)" NL, ocpdev->def->index, input, speed);
+
+	if (speed == SPEED_1000)
+		ssr |= RGMII_SSR_1000(input);
+	else if (speed == SPEED_100)
+		ssr |= RGMII_SSR_100(input);
+
+	out_be32(&dev->base->ssr, ssr);
+}
+
+void __exit __rgmii_fini(struct ocp_device *ocpdev, int input)
+{
+	struct ibm_ocp_rgmii *dev = ocp_get_drvdata(ocpdev);
+	BUG_ON(!dev || dev->users == 0);
+
+	RGMII_DBG("%d: fini(%d)" NL, ocpdev->def->index, input);
+
+	/* Disable this input */
+	out_be32(&dev->base->fer,
+		 in_be32(&dev->base->fer) & ~RGMII_FER_MASK(input));
+
+	if (!--dev->users) {
+		/* Free everything if this is the last user */
+		ocp_set_drvdata(ocpdev, NULL);
+		iounmap((void *)dev->base);
+		kfree(dev);
+	}
+}
+
+int __rgmii_get_regs_len(struct ocp_device *ocpdev)
+{
+	return sizeof(struct emac_ethtool_regs_subhdr) +
+	    sizeof(struct rgmii_regs);
+}
+
+void *rgmii_dump_regs(struct ocp_device *ocpdev, void *buf)
+{
+	struct ibm_ocp_rgmii *dev = ocp_get_drvdata(ocpdev);
+	struct emac_ethtool_regs_subhdr *hdr = buf;
+	struct rgmii_regs *regs = (struct rgmii_regs *)(hdr + 1);
+
+	hdr->version = 0;
+	hdr->index = ocpdev->def->index;
+	memcpy_fromio(regs, dev->base, sizeof(struct rgmii_regs));
+	return regs + 1;
+}
diff --git a/drivers/net/ibm_emac/ibm_emac_rgmii.h b/drivers/net/ibm_emac/ibm_emac_rgmii.h
index 49f188f4ea6e..a1ffb8a44fff 100644
--- a/drivers/net/ibm_emac/ibm_emac_rgmii.h
+++ b/drivers/net/ibm_emac/ibm_emac_rgmii.h
@@ -1,5 +1,7 @@
 /*
- * Defines for the IBM RGMII bridge
+ * drivers/net/ibm_emac/ibm_emac_rgmii.c
+ *
+ * Driver for PowerPC 4xx on-chip ethernet controller, RGMII bridge support.
  *
  * Based on ocp_zmii.h/ibm_emac_zmii.h
  * Armin Kuster akuster@mvista.com
@@ -7,6 +9,9 @@
  * Copyright 2004 MontaVista Software, Inc.
  * Matt Porter <mporter@kernel.crashing.org>
  *
+ * Copyright (c) 2004, 2005 Zultys Technologies.
+ * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
+ *
  * This program is free software; you can redistribute  it and/or modify it
  * under  the terms of  the GNU General  Public License as published by the
  * Free Software Foundation;  either version 2 of the  License, or (at your
@@ -19,47 +24,42 @@
 #include <linux/config.h>
 
 /* RGMII bridge */
-typedef struct rgmii_regs {
+struct rgmii_regs {
 	u32 fer;		/* Function enable register */
 	u32 ssr;		/* Speed select register */
-} rgmii_t;
-
-#define RGMII_INPUTS			4
+};
 
 /* RGMII device */
 struct ibm_ocp_rgmii {
 	struct rgmii_regs *base;
-	int mode[RGMII_INPUTS];
 	int users;		/* number of EMACs using this RGMII bridge */
 };
 
-/* Fuctional Enable Reg */
-#define RGMII_FER_MASK(x)		(0x00000007 << (4*x))
-#define RGMII_RTBI			0x00000004
-#define RGMII_RGMII			0x00000005
-#define RGMII_TBI  			0x00000006
-#define RGMII_GMII 			0x00000007
-
-/* Speed Selection reg */
+#ifdef CONFIG_IBM_EMAC_RGMII
+int rgmii_attach(void *emac) __init;
 
-#define RGMII_SP2_100	0x00000002
-#define RGMII_SP2_1000	0x00000004
-#define RGMII_SP3_100	0x00000200
-#define RGMII_SP3_1000	0x00000400
+void __rgmii_fini(struct ocp_device *ocpdev, int input) __exit;
+static inline void rgmii_fini(struct ocp_device *ocpdev, int input)
+{
+	if (ocpdev)
+		__rgmii_fini(ocpdev, input);
+}
 
-#define RGMII_MII2_SPDMASK	 0x00000007
-#define RGMII_MII3_SPDMASK	 0x00000700
+void rgmii_set_speed(struct ocp_device *ocpdev, int input, int speed);
 
-#define RGMII_MII2_100MB	 RGMII_SP2_100 & ~RGMII_SP2_1000
-#define RGMII_MII2_1000MB 	 RGMII_SP2_1000 & ~RGMII_SP2_100
-#define RGMII_MII2_10MB		 ~(RGMII_SP2_100 | RGMII_SP2_1000)
-#define RGMII_MII3_100MB	 RGMII_SP3_100 & ~RGMII_SP3_1000
-#define RGMII_MII3_1000MB 	 RGMII_SP3_1000 & ~RGMII_SP3_100
-#define RGMII_MII3_10MB		 ~(RGMII_SP3_100 | RGMII_SP3_1000)
+int __rgmii_get_regs_len(struct ocp_device *ocpdev);
+static inline int rgmii_get_regs_len(struct ocp_device *ocpdev)
+{
+	return ocpdev ? __rgmii_get_regs_len(ocpdev) : 0;
+}
 
-#define RTBI		0
-#define RGMII		1
-#define TBI		2
-#define GMII		3
+void *rgmii_dump_regs(struct ocp_device *ocpdev, void *buf);
+#else
+# define rgmii_attach(x)	0
+# define rgmii_fini(x,y)	((void)0)
+# define rgmii_set_speed(x,y,z)	((void)0)
+# define rgmii_get_regs_len(x)	0
+# define rgmii_dump_regs(x,buf)	(buf)
+#endif				/* !CONFIG_IBM_EMAC_RGMII */
 
 #endif				/* _IBM_EMAC_RGMII_H_ */
diff --git a/drivers/net/ibm_emac/ibm_emac_tah.c b/drivers/net/ibm_emac/ibm_emac_tah.c
new file mode 100644
index 000000000000..af08afc22f9f
--- /dev/null
+++ b/drivers/net/ibm_emac/ibm_emac_tah.c
@@ -0,0 +1,111 @@
+/*
+ * drivers/net/ibm_emac/ibm_emac_tah.c
+ *
+ * Driver for PowerPC 4xx on-chip ethernet controller, TAH support.
+ *
+ * Copyright 2004 MontaVista Software, Inc.
+ * Matt Porter <mporter@kernel.crashing.org>
+ *
+ * Copyright (c) 2005 Eugene Surovegin <ebs@ebshome.net>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+#include <linux/config.h>
+#include <asm/io.h>
+
+#include "ibm_emac_core.h"
+
+static int __init tah_init(struct ocp_device *ocpdev)
+{
+	struct tah_regs *p;
+
+	if (ocp_get_drvdata(ocpdev)) {
+		printk(KERN_ERR "tah%d: already in use!\n", ocpdev->def->index);
+		return -EBUSY;
+	}
+
+	/* Initialize TAH and enable IPv4 checksum verification, no TSO yet */
+	p = (struct tah_regs *)ioremap(ocpdev->def->paddr, sizeof(*p));
+	if (!p) {
+		printk(KERN_ERR "tah%d: could not ioremap device registers!\n",
+		       ocpdev->def->index);
+		return -ENOMEM;
+	}
+	ocp_set_drvdata(ocpdev, p);
+	__tah_reset(ocpdev);
+
+	return 0;
+}
+
+int __init tah_attach(void *emac)
+{
+	struct ocp_enet_private *dev = emac;
+	struct ocp_func_emac_data *emacdata = dev->def->additions;
+
+	/* Check if we need to attach to a TAH */
+	if (emacdata->tah_idx >= 0) {
+		dev->tah_dev = ocp_find_device(OCP_ANY_ID, OCP_FUNC_TAH,
+					       emacdata->tah_idx);
+		if (!dev->tah_dev) {
+			printk(KERN_ERR "emac%d: unknown tah%d!\n",
+			       dev->def->index, emacdata->tah_idx);
+			return -ENODEV;
+		}
+		if (tah_init(dev->tah_dev)) {
+			printk(KERN_ERR
+			       "emac%d: tah%d initialization failed!\n",
+			       dev->def->index, emacdata->tah_idx);
+			return -ENODEV;
+		}
+	}
+	return 0;
+}
+
+void __exit __tah_fini(struct ocp_device *ocpdev)
+{
+	struct tah_regs *p = ocp_get_drvdata(ocpdev);
+	BUG_ON(!p);
+	ocp_set_drvdata(ocpdev, NULL);
+	iounmap((void *)p);
+}
+
+void __tah_reset(struct ocp_device *ocpdev)
+{
+	struct tah_regs *p = ocp_get_drvdata(ocpdev);
+	int n;
+
+	/* Reset TAH */
+	out_be32(&p->mr, TAH_MR_SR);
+	n = 100;
+	while ((in_be32(&p->mr) & TAH_MR_SR) && n)
+		--n;
+
+	if (unlikely(!n))
+		printk(KERN_ERR "tah%d: reset timeout\n", ocpdev->def->index);
+
+	/* 10KB TAH TX FIFO accomodates the max MTU of 9000 */
+	out_be32(&p->mr,
+		 TAH_MR_CVR | TAH_MR_ST_768 | TAH_MR_TFS_10KB | TAH_MR_DTFP |
+		 TAH_MR_DIG);
+}
+
+int __tah_get_regs_len(struct ocp_device *ocpdev)
+{
+	return sizeof(struct emac_ethtool_regs_subhdr) +
+	    sizeof(struct tah_regs);
+}
+
+void *tah_dump_regs(struct ocp_device *ocpdev, void *buf)
+{
+	struct tah_regs *dev = ocp_get_drvdata(ocpdev);
+	struct emac_ethtool_regs_subhdr *hdr = buf;
+	struct tah_regs *regs = (struct tah_regs *)(hdr + 1);
+
+	hdr->version = 0;
+	hdr->index = ocpdev->def->index;
+	memcpy_fromio(regs, dev, sizeof(struct tah_regs));
+	return regs + 1;
+}
diff --git a/drivers/net/ibm_emac/ibm_emac_tah.h b/drivers/net/ibm_emac/ibm_emac_tah.h
index ecfc69805521..9299b5dd7eb1 100644
--- a/drivers/net/ibm_emac/ibm_emac_tah.h
+++ b/drivers/net/ibm_emac/ibm_emac_tah.h
@@ -1,9 +1,13 @@
 /*
- * Defines for the IBM TAH
+ * drivers/net/ibm_emac/ibm_emac_tah.h
+ *
+ * Driver for PowerPC 4xx on-chip ethernet controller, TAH support.
  *
  * Copyright 2004 MontaVista Software, Inc.
  * Matt Porter <mporter@kernel.crashing.org>
  *
+ * Copyright (c) 2005 Eugene Surovegin <ebs@ebshome.net>
+ *
  * This program is free software; you can redistribute  it and/or modify it
  * under  the terms of  the GNU General  Public License as published by the
  * Free Software Foundation;  either version 2 of the  License, or (at your
@@ -13,36 +17,72 @@
 #ifndef _IBM_EMAC_TAH_H
 #define _IBM_EMAC_TAH_H
 
+#include <linux/config.h>
+#include <linux/init.h>
+#include <asm/ocp.h>
+
 /* TAH */
-typedef struct tah_regs {
-	u32 tah_revid;
+struct tah_regs {
+	u32 revid;
 	u32 pad[3];
-	u32 tah_mr;
-	u32 tah_ssr0;
-	u32 tah_ssr1;
-	u32 tah_ssr2;
-	u32 tah_ssr3;
-	u32 tah_ssr4;
-	u32 tah_ssr5;
-	u32 tah_tsr;
-} tah_t;
+	u32 mr;
+	u32 ssr0;
+	u32 ssr1;
+	u32 ssr2;
+	u32 ssr3;
+	u32 ssr4;
+	u32 ssr5;
+	u32 tsr;
+};
 
 /* TAH engine */
-#define TAH_MR_CVR			0x80000000
-#define TAH_MR_SR			0x40000000
-#define TAH_MR_ST_256			0x01000000
-#define TAH_MR_ST_512			0x02000000
-#define TAH_MR_ST_768			0x03000000
-#define TAH_MR_ST_1024			0x04000000
-#define TAH_MR_ST_1280			0x05000000
-#define TAH_MR_ST_1536			0x06000000
-#define TAH_MR_TFS_16KB			0x00000000
-#define TAH_MR_TFS_2KB			0x00200000
-#define TAH_MR_TFS_4KB			0x00400000
-#define TAH_MR_TFS_6KB			0x00600000
-#define TAH_MR_TFS_8KB			0x00800000
-#define TAH_MR_TFS_10KB			0x00a00000
-#define TAH_MR_DTFP			0x00100000
-#define TAH_MR_DIG			0x00080000
+#define TAH_MR_CVR		0x80000000
+#define TAH_MR_SR		0x40000000
+#define TAH_MR_ST_256		0x01000000
+#define TAH_MR_ST_512		0x02000000
+#define TAH_MR_ST_768		0x03000000
+#define TAH_MR_ST_1024		0x04000000
+#define TAH_MR_ST_1280		0x05000000
+#define TAH_MR_ST_1536		0x06000000
+#define TAH_MR_TFS_16KB		0x00000000
+#define TAH_MR_TFS_2KB		0x00200000
+#define TAH_MR_TFS_4KB		0x00400000
+#define TAH_MR_TFS_6KB		0x00600000
+#define TAH_MR_TFS_8KB		0x00800000
+#define TAH_MR_TFS_10KB		0x00a00000
+#define TAH_MR_DTFP		0x00100000
+#define TAH_MR_DIG		0x00080000
+
+#ifdef CONFIG_IBM_EMAC_TAH
+int tah_attach(void *emac) __init;
+
+void __tah_fini(struct ocp_device *ocpdev) __exit;
+static inline void tah_fini(struct ocp_device *ocpdev)
+{
+	if (ocpdev)
+		__tah_fini(ocpdev);
+}
+
+void __tah_reset(struct ocp_device *ocpdev);
+static inline void tah_reset(struct ocp_device *ocpdev)
+{
+	if (ocpdev)
+		__tah_reset(ocpdev);
+}
+
+int __tah_get_regs_len(struct ocp_device *ocpdev);
+static inline int tah_get_regs_len(struct ocp_device *ocpdev)
+{
+	return ocpdev ? __tah_get_regs_len(ocpdev) : 0;
+}
+
+void *tah_dump_regs(struct ocp_device *ocpdev, void *buf);
+#else
+# define tah_attach(x)		0
+# define tah_fini(x)		((void)0)
+# define tah_reset(x)		((void)0)
+# define tah_get_regs_len(x)	0
+# define tah_dump_regs(x,buf)	(buf)
+#endif				/* !CONFIG_IBM_EMAC_TAH */
 
 #endif				/* _IBM_EMAC_TAH_H */
diff --git a/drivers/net/ibm_emac/ibm_emac_zmii.c b/drivers/net/ibm_emac/ibm_emac_zmii.c
new file mode 100644
index 000000000000..35c1185079ed
--- /dev/null
+++ b/drivers/net/ibm_emac/ibm_emac_zmii.c
@@ -0,0 +1,255 @@
+/*
+ * drivers/net/ibm_emac/ibm_emac_zmii.c
+ *
+ * Driver for PowerPC 4xx on-chip ethernet controller, ZMII bridge support.
+ *
+ * Copyright (c) 2004, 2005 Zultys Technologies.
+ * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
+ *
+ * Based on original work by
+ *      Armin Kuster <akuster@mvista.com>
+ * 	Copyright 2001 MontaVista Softare Inc.
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ *
+ */
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/ethtool.h>
+#include <asm/io.h>
+
+#include "ibm_emac_core.h"
+#include "ibm_emac_debug.h"
+
+/* ZMIIx_FER */
+#define ZMII_FER_MDI(idx)	(0x80000000 >> ((idx) * 4))
+#define ZMII_FER_MDI_ALL	(ZMII_FER_MDI(0) | ZMII_FER_MDI(1) | \
+				 ZMII_FER_MDI(2) | ZMII_FER_MDI(3))
+
+#define ZMII_FER_SMII(idx)	(0x40000000 >> ((idx) * 4))
+#define ZMII_FER_RMII(idx)	(0x20000000 >> ((idx) * 4))
+#define ZMII_FER_MII(idx)	(0x10000000 >> ((idx) * 4))
+
+/* ZMIIx_SSR */
+#define ZMII_SSR_SCI(idx)	(0x40000000 >> ((idx) * 4))
+#define ZMII_SSR_FSS(idx)	(0x20000000 >> ((idx) * 4))
+#define ZMII_SSR_SP(idx)	(0x10000000 >> ((idx) * 4))
+
+/* ZMII only supports MII, RMII and SMII 
+ * we also support autodetection for backward compatibility
+ */
+static inline int zmii_valid_mode(int mode)
+{
+	return  mode == PHY_MODE_MII ||
+		mode == PHY_MODE_RMII ||
+		mode == PHY_MODE_SMII ||
+		mode == PHY_MODE_NA;
+}
+
+static inline const char *zmii_mode_name(int mode)
+{
+	switch (mode) {
+	case PHY_MODE_MII:
+		return "MII";
+	case PHY_MODE_RMII:
+		return "RMII";
+	case PHY_MODE_SMII:
+		return "SMII";
+	default:
+		BUG();
+	}
+}
+
+static inline u32 zmii_mode_mask(int mode, int input)
+{
+	switch (mode) {
+	case PHY_MODE_MII:
+		return ZMII_FER_MII(input);
+	case PHY_MODE_RMII:
+		return ZMII_FER_RMII(input);
+	case PHY_MODE_SMII:
+		return ZMII_FER_SMII(input);
+	default:
+		return 0;
+	}
+}
+
+static int __init zmii_init(struct ocp_device *ocpdev, int input, int *mode)
+{
+	struct ibm_ocp_zmii *dev = ocp_get_drvdata(ocpdev);
+	struct zmii_regs *p;
+
+	ZMII_DBG("%d: init(%d, %d)" NL, ocpdev->def->index, input, *mode);
+
+	if (!dev) {
+		dev = kzalloc(sizeof(struct ibm_ocp_zmii), GFP_KERNEL);
+		if (!dev) {
+			printk(KERN_ERR
+			       "zmii%d: couldn't allocate device structure!\n",
+			       ocpdev->def->index);
+			return -ENOMEM;
+		}
+		dev->mode = PHY_MODE_NA;
+
+		p = (struct zmii_regs *)ioremap(ocpdev->def->paddr,
+						sizeof(struct zmii_regs));
+		if (!p) {
+			printk(KERN_ERR
+			       "zmii%d: could not ioremap device registers!\n",
+			       ocpdev->def->index);
+			kfree(dev);
+			return -ENOMEM;
+		}
+		dev->base = p;
+		ocp_set_drvdata(ocpdev, dev);
+		
+		/* We may need FER value for autodetection later */
+		dev->fer_save = in_be32(&p->fer);
+
+		/* Disable all inputs by default */
+		out_be32(&p->fer, 0);
+	} else
+		p = dev->base;
+
+	if (!zmii_valid_mode(*mode)) {
+		/* Probably an EMAC connected to RGMII, 
+		 * but it still may need ZMII for MDIO 
+		 */
+		goto out;
+	}
+
+	/* Autodetect ZMII mode if not specified.
+	 * This is only for backward compatibility with the old driver.
+	 * Please, always specify PHY mode in your board port to avoid
+	 * any surprises.
+	 */
+	if (dev->mode == PHY_MODE_NA) {
+		if (*mode == PHY_MODE_NA) {
+			u32 r = dev->fer_save;
+
+			ZMII_DBG("%d: autodetecting mode, FER = 0x%08x" NL,
+				 ocpdev->def->index, r);
+			
+			if (r & (ZMII_FER_MII(0) | ZMII_FER_MII(1)))
+				dev->mode = PHY_MODE_MII;
+			else if (r & (ZMII_FER_RMII(0) | ZMII_FER_RMII(1)))
+				dev->mode = PHY_MODE_RMII;
+			else
+				dev->mode = PHY_MODE_SMII;
+		} else
+			dev->mode = *mode;
+
+		printk(KERN_NOTICE "zmii%d: bridge in %s mode\n",
+		       ocpdev->def->index, zmii_mode_name(dev->mode));
+	} else {
+		/* All inputs must use the same mode */
+		if (*mode != PHY_MODE_NA && *mode != dev->mode) {
+			printk(KERN_ERR
+			       "zmii%d: invalid mode %d specified for input %d\n",
+			       ocpdev->def->index, *mode, input);
+			return -EINVAL;
+		}
+	}
+
+	/* Report back correct PHY mode, 
+	 * it may be used during PHY initialization.
+	 */
+	*mode = dev->mode;
+
+	/* Enable this input */
+	out_be32(&p->fer, in_be32(&p->fer) | zmii_mode_mask(dev->mode, input));
+      out:
+	++dev->users;
+	return 0;
+}
+
+int __init zmii_attach(void *emac)
+{
+	struct ocp_enet_private *dev = emac;
+	struct ocp_func_emac_data *emacdata = dev->def->additions;
+
+	if (emacdata->zmii_idx >= 0) {
+		dev->zmii_input = emacdata->zmii_mux;
+		dev->zmii_dev =
+		    ocp_find_device(OCP_VENDOR_IBM, OCP_FUNC_ZMII,
+				    emacdata->zmii_idx);
+		if (!dev->zmii_dev) {
+			printk(KERN_ERR "emac%d: unknown zmii%d!\n",
+			       dev->def->index, emacdata->zmii_idx);
+			return -ENODEV;
+		}
+		if (zmii_init
+		    (dev->zmii_dev, dev->zmii_input, &emacdata->phy_mode)) {
+			printk(KERN_ERR
+			       "emac%d: zmii%d initialization failed!\n",
+			       dev->def->index, emacdata->zmii_idx);
+			return -ENODEV;
+		}
+	}
+	return 0;
+}
+
+void __zmii_enable_mdio(struct ocp_device *ocpdev, int input)
+{
+	struct ibm_ocp_zmii *dev = ocp_get_drvdata(ocpdev);
+	u32 fer = in_be32(&dev->base->fer) & ~ZMII_FER_MDI_ALL;
+
+	ZMII_DBG2("%d: mdio(%d)" NL, ocpdev->def->index, input);
+
+	out_be32(&dev->base->fer, fer | ZMII_FER_MDI(input));
+}
+
+void __zmii_set_speed(struct ocp_device *ocpdev, int input, int speed)
+{
+	struct ibm_ocp_zmii *dev = ocp_get_drvdata(ocpdev);
+	u32 ssr = in_be32(&dev->base->ssr);
+
+	ZMII_DBG("%d: speed(%d, %d)" NL, ocpdev->def->index, input, speed);
+
+	if (speed == SPEED_100)
+		ssr |= ZMII_SSR_SP(input);
+	else
+		ssr &= ~ZMII_SSR_SP(input);
+
+	out_be32(&dev->base->ssr, ssr);
+}
+
+void __exit __zmii_fini(struct ocp_device *ocpdev, int input)
+{
+	struct ibm_ocp_zmii *dev = ocp_get_drvdata(ocpdev);
+	BUG_ON(!dev || dev->users == 0);
+
+	ZMII_DBG("%d: fini(%d)" NL, ocpdev->def->index, input);
+
+	/* Disable this input */
+	out_be32(&dev->base->fer,
+		 in_be32(&dev->base->fer) & ~zmii_mode_mask(dev->mode, input));
+
+	if (!--dev->users) {
+		/* Free everything if this is the last user */
+		ocp_set_drvdata(ocpdev, NULL);
+		iounmap((void *)dev->base);
+		kfree(dev);
+	}
+}
+
+int __zmii_get_regs_len(struct ocp_device *ocpdev)
+{
+	return sizeof(struct emac_ethtool_regs_subhdr) +
+	    sizeof(struct zmii_regs);
+}
+
+void *zmii_dump_regs(struct ocp_device *ocpdev, void *buf)
+{
+	struct ibm_ocp_zmii *dev = ocp_get_drvdata(ocpdev);
+	struct emac_ethtool_regs_subhdr *hdr = buf;
+	struct zmii_regs *regs = (struct zmii_regs *)(hdr + 1);
+
+	hdr->version = 0;
+	hdr->index = ocpdev->def->index;
+	memcpy_fromio(regs, dev->base, sizeof(struct zmii_regs));
+	return regs + 1;
+}
diff --git a/drivers/net/ibm_emac/ibm_emac_zmii.h b/drivers/net/ibm_emac/ibm_emac_zmii.h
index 6f6cd2a39e38..0bb26062c0ad 100644
--- a/drivers/net/ibm_emac/ibm_emac_zmii.h
+++ b/drivers/net/ibm_emac/ibm_emac_zmii.h
@@ -1,23 +1,27 @@
 /*
- * ocp_zmii.h
+ * drivers/net/ibm_emac/ibm_emac_zmii.h
  *
- * Defines for the IBM ZMII bridge
+ * Driver for PowerPC 4xx on-chip ethernet controller, ZMII bridge support.
  *
- *      Armin Kuster akuster@mvista.com
- *      Dec, 2001
+ * Copyright (c) 2004, 2005 Zultys Technologies.
+ * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
  *
- * Copyright 2001 MontaVista Softare Inc.
+ * Based on original work by
+ *      Armin Kuster <akuster@mvista.com>
+ * 	Copyright 2001 MontaVista Softare Inc.
  *
  * This program is free software; you can redistribute  it and/or modify it
  * under  the terms of  the GNU General  Public License as published by the
  * Free Software Foundation;  either version 2 of the  License, or (at your
  * option) any later version.
+ *
  */
-
 #ifndef _IBM_EMAC_ZMII_H_
 #define _IBM_EMAC_ZMII_H_
 
 #include <linux/config.h>
+#include <linux/init.h>
+#include <asm/ocp.h>
 
 /* ZMII bridge registers */
 struct zmii_regs {
@@ -26,68 +30,54 @@ struct zmii_regs {
 	u32 smiirs;		/* SMII status reg */
 };
 
-#define ZMII_INPUTS	4
-
 /* ZMII device */
 struct ibm_ocp_zmii {
 	struct zmii_regs *base;
-	int mode[ZMII_INPUTS];
+	int mode;		/* subset of PHY_MODE_XXXX */
 	int users;		/* number of EMACs using this ZMII bridge */
+	u32 fer_save;		/* FER value left by firmware */
 };
 
-/* Fuctional Enable Reg */
-
-#define ZMII_FER_MASK(x)	(0xf0000000 >> (4*x))
-
-#define ZMII_MDI0	0x80000000
-#define ZMII_SMII0	0x40000000
-#define ZMII_RMII0	0x20000000
-#define ZMII_MII0	0x10000000
-#define ZMII_MDI1	0x08000000
-#define ZMII_SMII1	0x04000000
-#define ZMII_RMII1	0x02000000
-#define ZMII_MII1	0x01000000
-#define ZMII_MDI2	0x00800000
-#define ZMII_SMII2	0x00400000
-#define ZMII_RMII2	0x00200000
-#define ZMII_MII2	0x00100000
-#define ZMII_MDI3	0x00080000
-#define ZMII_SMII3	0x00040000
-#define ZMII_RMII3	0x00020000
-#define ZMII_MII3	0x00010000
+#ifdef CONFIG_IBM_EMAC_ZMII
+int zmii_attach(void *emac) __init;
 
-/* Speed Selection reg */
+void __zmii_fini(struct ocp_device *ocpdev, int input) __exit;
+static inline void zmii_fini(struct ocp_device *ocpdev, int input)
+{
+	if (ocpdev)
+		__zmii_fini(ocpdev, input);
+}
 
-#define ZMII_SCI0	0x40000000
-#define ZMII_FSS0	0x20000000
-#define ZMII_SP0	0x10000000
-#define ZMII_SCI1	0x04000000
-#define ZMII_FSS1	0x02000000
-#define ZMII_SP1	0x01000000
-#define ZMII_SCI2	0x00400000
-#define ZMII_FSS2	0x00200000
-#define ZMII_SP2	0x00100000
-#define ZMII_SCI3	0x00040000
-#define ZMII_FSS3	0x00020000
-#define ZMII_SP3	0x00010000
+void __zmii_enable_mdio(struct ocp_device *ocpdev, int input);
+static inline void zmii_enable_mdio(struct ocp_device *ocpdev, int input)
+{
+	if (ocpdev)
+		__zmii_enable_mdio(ocpdev, input);
+}
 
-#define ZMII_MII0_100MB	ZMII_SP0
-#define ZMII_MII0_10MB	~ZMII_SP0
-#define ZMII_MII1_100MB	ZMII_SP1
-#define ZMII_MII1_10MB	~ZMII_SP1
-#define ZMII_MII2_100MB	ZMII_SP2
-#define ZMII_MII2_10MB	~ZMII_SP2
-#define ZMII_MII3_100MB	ZMII_SP3
-#define ZMII_MII3_10MB	~ZMII_SP3
+void __zmii_set_speed(struct ocp_device *ocpdev, int input, int speed);
+static inline void zmii_set_speed(struct ocp_device *ocpdev, int input,
+				  int speed)
+{
+	if (ocpdev)
+		__zmii_set_speed(ocpdev, input, speed);
+}
 
-/* SMII Status reg */
+int __zmii_get_regs_len(struct ocp_device *ocpdev);
+static inline int zmii_get_regs_len(struct ocp_device *ocpdev)
+{
+	return ocpdev ? __zmii_get_regs_len(ocpdev) : 0;
+}
 
-#define ZMII_STS0 0xFF000000	/* EMAC0 smii status mask */
-#define ZMII_STS1 0x00FF0000	/* EMAC1 smii status mask */
+void *zmii_dump_regs(struct ocp_device *ocpdev, void *buf);
 
-#define SMII	0
-#define RMII	1
-#define MII	2
-#define MDI	3
+#else
+# define zmii_attach(x)		0
+# define zmii_fini(x,y)		((void)0)
+# define zmii_enable_mdio(x,y)	((void)0)
+# define zmii_set_speed(x,y,z)	((void)0)
+# define zmii_get_regs_len(x)	0
+# define zmii_dump_regs(x,buf)	(buf)
+#endif				/* !CONFIG_IBM_EMAC_ZMII */
 
 #endif				/* _IBM_EMAC_ZMII_H_ */
-- 
cgit v1.2.3


From b2795f596932286ef12dc08857960d654f577405 Mon Sep 17 00:00:00 2001
From: Jeff Garzik <jgarzik@pobox.com>
Date: Fri, 28 Oct 2005 16:43:40 -0400
Subject: [git] change permissions on drivers/net/amd8111e.[ch] to 0644,
 removing executable bits.

---
 drivers/net/amd8111e.c | 0
 drivers/net/amd8111e.h | 0
 2 files changed, 0 insertions(+), 0 deletions(-)
 mode change 100755 => 100644 drivers/net/amd8111e.c
 mode change 100755 => 100644 drivers/net/amd8111e.h

(limited to 'drivers')

diff --git a/drivers/net/amd8111e.c b/drivers/net/amd8111e.c
old mode 100755
new mode 100644
diff --git a/drivers/net/amd8111e.h b/drivers/net/amd8111e.h
old mode 100755
new mode 100644
-- 
cgit v1.2.3


From 7380a78a973a8109c13cb0e47617c456b6f6e1f5 Mon Sep 17 00:00:00 2001
From: Vasily Averin <vvs@sw.ru>
Date: Fri, 28 Oct 2005 16:46:35 -0400
Subject: sis900: come alive after temporary memory shortage

1) Forgotten counter incrementation in sis900_rx() in case
     it doesn't get memory for skb, that leads to whole interface failure.
     Problem is accompanied with messages:
    eth0: Memory squeeze,deferring packet.
    eth0: NULL pointer encountered in Rx ring, skipping

2) If counter cur_rx overflows and there'll be temporary memory problems
     buffer can't be recreated later, when memory IS available.

3) Limit the work in handler to prevent the endless packets processing
   if new packets are generated faster then handled.

Signed-off-by: Konstantin Khorenko <khorenko@sw.ru>
Signed-off-by: Vasily Averin <vvs@sw.ru>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
---
 drivers/net/sis900.c | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

(limited to 'drivers')

diff --git a/drivers/net/sis900.c b/drivers/net/sis900.c
index 23b713c700b3..1d4d88680db1 100644
--- a/drivers/net/sis900.c
+++ b/drivers/net/sis900.c
@@ -1696,15 +1696,20 @@ static int sis900_rx(struct net_device *net_dev)
 	long ioaddr = net_dev->base_addr;
 	unsigned int entry = sis_priv->cur_rx % NUM_RX_DESC;
 	u32 rx_status = sis_priv->rx_ring[entry].cmdsts;
+	int rx_work_limit;
 
 	if (netif_msg_rx_status(sis_priv))
 		printk(KERN_DEBUG "sis900_rx, cur_rx:%4.4d, dirty_rx:%4.4d "
 		       "status:0x%8.8x\n",
 		       sis_priv->cur_rx, sis_priv->dirty_rx, rx_status);
+	rx_work_limit = sis_priv->dirty_rx + NUM_RX_DESC - sis_priv->cur_rx;
 
 	while (rx_status & OWN) {
 		unsigned int rx_size;
 
+		if (--rx_work_limit < 0)
+			break;
+
 		rx_size = (rx_status & DSIZE) - CRC_SIZE;
 
 		if (rx_status & (ABORT|OVERRUN|TOOLONG|RUNT|RXISERR|CRCERR|FAERR)) {
@@ -1732,9 +1737,11 @@ static int sis900_rx(struct net_device *net_dev)
 			   we are working on NULL sk_buff :-( */
 			if (sis_priv->rx_skbuff[entry] == NULL) {
 				if (netif_msg_rx_err(sis_priv))
-					printk(KERN_INFO "%s: NULL pointer " 
-						"encountered in Rx ring, skipping\n",
-						net_dev->name);
+					printk(KERN_WARNING "%s: NULL pointer " 
+					      "encountered in Rx ring\n"
+					      "cur_rx:%4.4d, dirty_rx:%4.4d\n",
+					      net_dev->name, sis_priv->cur_rx,
+					      sis_priv->dirty_rx);
 				break;
 			}
 
@@ -1770,6 +1777,7 @@ static int sis900_rx(struct net_device *net_dev)
 				sis_priv->rx_ring[entry].cmdsts = 0;
 				sis_priv->rx_ring[entry].bufptr = 0;
 				sis_priv->stats.rx_dropped++;
+				sis_priv->cur_rx++;
 				break;
 			}
 			skb->dev = net_dev;
@@ -1787,7 +1795,7 @@ static int sis900_rx(struct net_device *net_dev)
 
 	/* refill the Rx buffer, what if the rate of refilling is slower
 	 * than consuming ?? */
-	for (;sis_priv->cur_rx - sis_priv->dirty_rx > 0; sis_priv->dirty_rx++) {
+	for (; sis_priv->cur_rx != sis_priv->dirty_rx; sis_priv->dirty_rx++) {
 		struct sk_buff *skb;
 
 		entry = sis_priv->dirty_rx % NUM_RX_DESC;
-- 
cgit v1.2.3


From b4558ea93d66a43f7990d26f145fd4c54a01c9bf Mon Sep 17 00:00:00 2001
From: Jesper Juhl <jesper.juhl@gmail.com>
Date: Fri, 28 Oct 2005 16:53:13 -0400
Subject: drivers/net: Remove pointless checks for NULL prior to calling
 kfree()

---
 drivers/net/acenic.c                       |  6 ++--
 drivers/net/au1000_eth.c                   |  6 ++--
 drivers/net/b44.c                          | 12 +++-----
 drivers/net/bmac.c                         |  6 ++--
 drivers/net/bnx2.c                         | 12 +++-----
 drivers/net/e1000/e1000_ethtool.c          |  7 ++---
 drivers/net/hamradio/mkiss.c               |  6 ++--
 drivers/net/ibmveth.c                      |  6 ++--
 drivers/net/irda/donauboe.c                |  6 ++--
 drivers/net/irda/irda-usb.c                |  6 ++--
 drivers/net/irda/irport.c                  |  3 +-
 drivers/net/irda/sir_dev.c                 |  3 +-
 drivers/net/irda/vlsi_ir.c                 |  3 +-
 drivers/net/mace.c                         |  6 ++--
 drivers/net/ni65.c                         |  9 ++----
 drivers/net/rrunner.c                      |  6 ++--
 drivers/net/s2io.c                         |  3 +-
 drivers/net/saa9730.c                      |  8 ++---
 drivers/net/tg3.c                          |  6 ++--
 drivers/net/tulip/de2104x.c                |  6 ++--
 drivers/net/tulip/tulip_core.c             |  6 ++--
 drivers/net/via-velocity.c                 |  6 ++--
 drivers/net/wireless/airo.c                | 48 ++++++++++++------------------
 drivers/net/wireless/airo_cs.c             |  4 +--
 drivers/net/wireless/atmel.c               |  6 ++--
 drivers/net/wireless/atmel_cs.c            |  3 +-
 drivers/net/wireless/hostap/hostap_ioctl.c |  9 ++----
 drivers/net/wireless/prism54/islpci_dev.c  |  3 +-
 drivers/net/wireless/prism54/oid_mgt.c     |  9 +++---
 drivers/net/wireless/strip.c               | 38 ++++++++---------------
 include/net/ax25.h                         |  3 +-
 include/net/netrom.h                       |  3 +-
 32 files changed, 90 insertions(+), 174 deletions(-)

(limited to 'drivers')

diff --git a/drivers/net/acenic.c b/drivers/net/acenic.c
index dbecc6bf7851..b8953de5664a 100644
--- a/drivers/net/acenic.c
+++ b/drivers/net/acenic.c
@@ -871,10 +871,8 @@ static void ace_init_cleanup(struct net_device *dev)
 	if (ap->info)
 		pci_free_consistent(ap->pdev, sizeof(struct ace_info),
 				    ap->info, ap->info_dma);
-	if (ap->skb)
-		kfree(ap->skb);
-	if (ap->trace_buf)
-		kfree(ap->trace_buf);
+	kfree(ap->skb);
+	kfree(ap->trace_buf);
 
 	if (dev->irq)
 		free_irq(dev->irq, dev);
diff --git a/drivers/net/au1000_eth.c b/drivers/net/au1000_eth.c
index 78506911d656..332e9953c55c 100644
--- a/drivers/net/au1000_eth.c
+++ b/drivers/net/au1000_eth.c
@@ -1606,8 +1606,7 @@ err_out:
 	/* here we should have a valid dev plus aup-> register addresses
 	 * so we can reset the mac properly.*/
 	reset_mac(dev);
-	if (aup->mii)
-		kfree(aup->mii);
+	kfree(aup->mii);
 	for (i = 0; i < NUM_RX_DMA; i++) {
 		if (aup->rx_db_inuse[i])
 			ReleaseDB(aup, aup->rx_db_inuse[i]);
@@ -1806,8 +1805,7 @@ static void __exit au1000_cleanup_module(void)
 		if (dev) {
 			aup = (struct au1000_private *) dev->priv;
 			unregister_netdev(dev);
-			if (aup->mii)
-				kfree(aup->mii);
+			kfree(aup->mii);
 			for (j = 0; j < NUM_RX_DMA; j++) {
 				if (aup->rx_db_inuse[j])
 					ReleaseDB(aup, aup->rx_db_inuse[j]);
diff --git a/drivers/net/b44.c b/drivers/net/b44.c
index ab845076ff9f..5485e3b1cd35 100644
--- a/drivers/net/b44.c
+++ b/drivers/net/b44.c
@@ -1131,14 +1131,10 @@ static void b44_init_rings(struct b44 *bp)
  */
 static void b44_free_consistent(struct b44 *bp)
 {
-	if (bp->rx_buffers) {
-		kfree(bp->rx_buffers);
-		bp->rx_buffers = NULL;
-	}
-	if (bp->tx_buffers) {
-		kfree(bp->tx_buffers);
-		bp->tx_buffers = NULL;
-	}
+	kfree(bp->rx_buffers);
+	bp->rx_buffers = NULL;
+	kfree(bp->tx_buffers);
+	bp->tx_buffers = NULL;
 	if (bp->rx_ring) {
 		if (bp->flags & B44_FLAG_RX_RING_HACK) {
 			dma_unmap_single(&bp->pdev->dev, bp->rx_ring_dma,
diff --git a/drivers/net/bmac.c b/drivers/net/bmac.c
index 60dba4a1ca5c..73f2fcfc557f 100644
--- a/drivers/net/bmac.c
+++ b/drivers/net/bmac.c
@@ -1689,10 +1689,8 @@ static void __exit bmac_exit(void)
 {
 	macio_unregister_driver(&bmac_driver);
 
-	if (bmac_emergency_rxbuf != NULL) {
-		kfree(bmac_emergency_rxbuf);
-		bmac_emergency_rxbuf = NULL;
-	}
+	kfree(bmac_emergency_rxbuf);
+	bmac_emergency_rxbuf = NULL;
 }
 
 MODULE_AUTHOR("Randy Gobbel/Paul Mackerras");
diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c
index 3a2ace01e444..11d252318221 100644
--- a/drivers/net/bnx2.c
+++ b/drivers/net/bnx2.c
@@ -314,20 +314,16 @@ bnx2_free_mem(struct bnx2 *bp)
 				    bp->tx_desc_ring, bp->tx_desc_mapping);
 		bp->tx_desc_ring = NULL;
 	}
-	if (bp->tx_buf_ring) {
-		kfree(bp->tx_buf_ring);
-		bp->tx_buf_ring = NULL;
-	}
+	kfree(bp->tx_buf_ring);
+	bp->tx_buf_ring = NULL;
 	if (bp->rx_desc_ring) {
 		pci_free_consistent(bp->pdev,
 				    sizeof(struct rx_bd) * RX_DESC_CNT,
 				    bp->rx_desc_ring, bp->rx_desc_mapping);
 		bp->rx_desc_ring = NULL;
 	}
-	if (bp->rx_buf_ring) {
-		kfree(bp->rx_buf_ring);
-		bp->rx_buf_ring = NULL;
-	}
+	kfree(bp->rx_buf_ring);
+	bp->rx_buf_ring = NULL;
 }
 
 static int
diff --git a/drivers/net/e1000/e1000_ethtool.c b/drivers/net/e1000/e1000_ethtool.c
index 6b9acc7f94a3..9c7feaeaa6a4 100644
--- a/drivers/net/e1000/e1000_ethtool.c
+++ b/drivers/net/e1000/e1000_ethtool.c
@@ -965,11 +965,8 @@ e1000_free_desc_rings(struct e1000_adapter *adapter)
 	if(rxdr->desc)
 		pci_free_consistent(pdev, rxdr->size, rxdr->desc, rxdr->dma);
 
-	if(txdr->buffer_info)
-		kfree(txdr->buffer_info);
-	if(rxdr->buffer_info)
-		kfree(rxdr->buffer_info);
-
+	kfree(txdr->buffer_info);
+	kfree(rxdr->buffer_info);
 	return;
 }
 
diff --git a/drivers/net/hamradio/mkiss.c b/drivers/net/hamradio/mkiss.c
index 85d6dc005be0..3e9accf137e7 100644
--- a/drivers/net/hamradio/mkiss.c
+++ b/drivers/net/hamradio/mkiss.c
@@ -390,10 +390,8 @@ static void ax_changedmtu(struct mkiss *ax)
 		       "MTU change cancelled.\n",
 		       ax->dev->name);
 		dev->mtu = ax->mtu;
-		if (xbuff != NULL)
-			kfree(xbuff);
-		if (rbuff != NULL)
-			kfree(rbuff);
+		kfree(xbuff);
+		kfree(rbuff);
 		return;
 	}
 
diff --git a/drivers/net/ibmveth.c b/drivers/net/ibmveth.c
index f5819527ec9d..36da54ad2b7b 100644
--- a/drivers/net/ibmveth.c
+++ b/drivers/net/ibmveth.c
@@ -276,10 +276,8 @@ static void ibmveth_free_buffer_pool(struct ibmveth_adapter *adapter, struct ibm
 {
 	int i;
 
-	if(pool->free_map) {
-		kfree(pool->free_map);
-		pool->free_map  = NULL;
-	}
+	kfree(pool->free_map);
+	pool->free_map = NULL;
 
 	if(pool->skbuff && pool->dma_addr) {
 		for(i = 0; i < pool->size; ++i) {
diff --git a/drivers/net/irda/donauboe.c b/drivers/net/irda/donauboe.c
index 0a08c539c051..0282771b1cbb 100644
--- a/drivers/net/irda/donauboe.c
+++ b/drivers/net/irda/donauboe.c
@@ -1695,11 +1695,9 @@ toshoboe_open (struct pci_dev *pci_dev, const struct pci_device_id *pdid)
 
 freebufs:
   for (i = 0; i < TX_SLOTS; ++i)
-    if (self->tx_bufs[i])
-      kfree (self->tx_bufs[i]);
+    kfree (self->tx_bufs[i]);
   for (i = 0; i < RX_SLOTS; ++i)
-    if (self->rx_bufs[i])
-      kfree (self->rx_bufs[i]);
+    kfree (self->rx_bufs[i]);
   kfree(self->ringbuf);
 
 freeregion:
diff --git a/drivers/net/irda/irda-usb.c b/drivers/net/irda/irda-usb.c
index 6c766fdc51a6..c22c0517883c 100644
--- a/drivers/net/irda/irda-usb.c
+++ b/drivers/net/irda/irda-usb.c
@@ -1168,10 +1168,8 @@ static inline void irda_usb_close(struct irda_usb_cb *self)
 	unregister_netdev(self->netdev);
 
 	/* Remove the speed buffer */
-	if (self->speed_buff != NULL) {
-		kfree(self->speed_buff);
-		self->speed_buff = NULL;
-	}
+	kfree(self->speed_buff);
+	self->speed_buff = NULL;
 }
 
 /********************** USB CONFIG SUBROUTINES **********************/
diff --git a/drivers/net/irda/irport.c b/drivers/net/irda/irport.c
index 5971315f3fa0..3d016a498e1d 100644
--- a/drivers/net/irda/irport.c
+++ b/drivers/net/irda/irport.c
@@ -235,8 +235,7 @@ static int irport_close(struct irport_cb *self)
 		   __FUNCTION__, self->io.sir_base);
 	release_region(self->io.sir_base, self->io.sir_ext);
 
-	if (self->tx_buff.head)
-		kfree(self->tx_buff.head);
+	kfree(self->tx_buff.head);
 	
 	if (self->rx_buff.skb)
 		kfree_skb(self->rx_buff.skb);
diff --git a/drivers/net/irda/sir_dev.c b/drivers/net/irda/sir_dev.c
index efc5a8870565..df22b8b532e7 100644
--- a/drivers/net/irda/sir_dev.c
+++ b/drivers/net/irda/sir_dev.c
@@ -490,8 +490,7 @@ static void sirdev_free_buffers(struct sir_dev *dev)
 {
 	if (dev->rx_buff.skb)
 		kfree_skb(dev->rx_buff.skb);
-	if (dev->tx_buff.head)
-		kfree(dev->tx_buff.head);
+	kfree(dev->tx_buff.head);
 	dev->rx_buff.head = dev->tx_buff.head = NULL;
 	dev->rx_buff.skb = NULL;
 }
diff --git a/drivers/net/irda/vlsi_ir.c b/drivers/net/irda/vlsi_ir.c
index 651c5a6578fd..a9f49f058cfb 100644
--- a/drivers/net/irda/vlsi_ir.c
+++ b/drivers/net/irda/vlsi_ir.c
@@ -473,8 +473,7 @@ static int vlsi_free_ring(struct vlsi_ring *r)
 		rd_set_addr_status(rd, 0, 0);
 		if (busaddr)
 			pci_unmap_single(r->pdev, busaddr, r->len, r->dir);
-		if (rd->buf)
-			kfree(rd->buf);
+		kfree(rd->buf);
 	}
 	kfree(r);
 	return 0;
diff --git a/drivers/net/mace.c b/drivers/net/mace.c
index 81d0a26e4f41..09b1e7b364e5 100644
--- a/drivers/net/mace.c
+++ b/drivers/net/mace.c
@@ -1035,10 +1035,8 @@ static void __exit mace_cleanup(void)
 {
 	macio_unregister_driver(&mace_driver);
 
-	if (dummy_buf) {
-		kfree(dummy_buf);
-		dummy_buf = NULL;
-	}
+	kfree(dummy_buf);
+	dummy_buf = NULL;
 }
 
 MODULE_AUTHOR("Paul Mackerras");
diff --git a/drivers/net/ni65.c b/drivers/net/ni65.c
index 925d1dfcc4dc..bb42ff218484 100644
--- a/drivers/net/ni65.c
+++ b/drivers/net/ni65.c
@@ -696,8 +696,7 @@ static void ni65_free_buffer(struct priv *p)
 		return;
 
 	for(i=0;i<TMDNUM;i++) {
-		if(p->tmdbounce[i])
-			kfree(p->tmdbounce[i]);
+		kfree(p->tmdbounce[i]);
 #ifdef XMT_VIA_SKB
 		if(p->tmd_skb[i])
 			dev_kfree_skb(p->tmd_skb[i]);
@@ -710,12 +709,10 @@ static void ni65_free_buffer(struct priv *p)
 		if(p->recv_skb[i])
 			dev_kfree_skb(p->recv_skb[i]);
 #else
-		if(p->recvbounce[i])
-			kfree(p->recvbounce[i]);
+		kfree(p->recvbounce[i]);
 #endif
 	}
-	if(p->self)
-		kfree(p->self);
+	kfree(p->self);
 }
 
 
diff --git a/drivers/net/rrunner.c b/drivers/net/rrunner.c
index ec1a18d189a1..19c2df9c86fe 100644
--- a/drivers/net/rrunner.c
+++ b/drivers/net/rrunner.c
@@ -1710,10 +1710,8 @@ static int rr_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
 			error = -EFAULT;
 		}
 	wf_out:
-		if (oldimage)
-			kfree(oldimage);
-		if (image)
-			kfree(image);
+		kfree(oldimage);
+		kfree(image);
 		return error;
 		
 	case SIOCRRID:
diff --git a/drivers/net/s2io.c b/drivers/net/s2io.c
index d303d162974f..5ea897714a14 100644
--- a/drivers/net/s2io.c
+++ b/drivers/net/s2io.c
@@ -705,8 +705,7 @@ static void free_shared_mem(struct s2io_nic *nic)
 			}
 			kfree(mac_control->rings[i].ba[j]);
 		}
-		if (mac_control->rings[i].ba)
-			kfree(mac_control->rings[i].ba);
+		kfree(mac_control->rings[i].ba);
 	}
 #endif
 
diff --git a/drivers/net/saa9730.c b/drivers/net/saa9730.c
index fd0167077fbe..110e777f206e 100644
--- a/drivers/net/saa9730.c
+++ b/drivers/net/saa9730.c
@@ -997,10 +997,7 @@ static void __devexit saa9730_remove_one(struct pci_dev *pdev)
 
         if (dev) {
                 unregister_netdev(dev);
-
-		if (dev->priv)
-			kfree(dev->priv);
-
+		kfree(dev->priv);
                 free_netdev(dev);
                 pci_release_regions(pdev);
                 pci_disable_device(pdev);
@@ -1096,8 +1093,7 @@ static int lan_saa9730_init(struct net_device *dev, int ioaddr, int irq)
 	return 0;
 
  out:
-	if (dev->priv)
-		kfree(dev->priv);
+	kfree(dev->priv);
 	return ret;
 }
 
diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index 551c9449322d..b547233ad9f7 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -3918,10 +3918,8 @@ static void tg3_init_rings(struct tg3 *tp)
  */
 static void tg3_free_consistent(struct tg3 *tp)
 {
-	if (tp->rx_std_buffers) {
-		kfree(tp->rx_std_buffers);
-		tp->rx_std_buffers = NULL;
-	}
+	kfree(tp->rx_std_buffers);
+	tp->rx_std_buffers = NULL;
 	if (tp->rx_std) {
 		pci_free_consistent(tp->pdev, TG3_RX_RING_BYTES,
 				    tp->rx_std, tp->rx_std_mapping);
diff --git a/drivers/net/tulip/de2104x.c b/drivers/net/tulip/de2104x.c
index 6b8eee8f7bfd..d7fb3ffe06ac 100644
--- a/drivers/net/tulip/de2104x.c
+++ b/drivers/net/tulip/de2104x.c
@@ -2076,8 +2076,7 @@ static int __init de_init_one (struct pci_dev *pdev,
 	return 0;
 
 err_out_iomap:
-	if (de->ee_data)
-		kfree(de->ee_data);
+	kfree(de->ee_data);
 	iounmap(regs);
 err_out_res:
 	pci_release_regions(pdev);
@@ -2096,8 +2095,7 @@ static void __exit de_remove_one (struct pci_dev *pdev)
 	if (!dev)
 		BUG();
 	unregister_netdev(dev);
-	if (de->ee_data)
-		kfree(de->ee_data);
+	kfree(de->ee_data);
 	iounmap(de->regs);
 	pci_release_regions(pdev);
 	pci_disable_device(pdev);
diff --git a/drivers/net/tulip/tulip_core.c b/drivers/net/tulip/tulip_core.c
index 6266a9a7e6e3..125ed00e95a5 100644
--- a/drivers/net/tulip/tulip_core.c
+++ b/drivers/net/tulip/tulip_core.c
@@ -1727,8 +1727,7 @@ err_out_free_ring:
 			     tp->rx_ring, tp->rx_ring_dma);
 
 err_out_mtable:
-	if (tp->mtable)
-		kfree (tp->mtable);
+	kfree (tp->mtable);
 	pci_iounmap(pdev, ioaddr);
 
 err_out_free_res:
@@ -1806,8 +1805,7 @@ static void __devexit tulip_remove_one (struct pci_dev *pdev)
 			     sizeof (struct tulip_rx_desc) * RX_RING_SIZE +
 			     sizeof (struct tulip_tx_desc) * TX_RING_SIZE,
 			     tp->rx_ring, tp->rx_ring_dma);
-	if (tp->mtable)
-		kfree (tp->mtable);
+	kfree (tp->mtable);
 	pci_iounmap(pdev, tp->base_addr);
 	free_netdev (dev);
 	pci_release_regions (pdev);
diff --git a/drivers/net/via-velocity.c b/drivers/net/via-velocity.c
index abc5cee6eedc..a368d08e7d19 100644
--- a/drivers/net/via-velocity.c
+++ b/drivers/net/via-velocity.c
@@ -1212,10 +1212,8 @@ static void velocity_free_td_ring(struct velocity_info *vptr)
 			velocity_free_td_ring_entry(vptr, j, i);
 
 		}
-		if (vptr->td_infos[j]) {
-			kfree(vptr->td_infos[j]);
-			vptr->td_infos[j] = NULL;
-		}
+		kfree(vptr->td_infos[j]);
+		vptr->td_infos[j] = NULL;
 	}
 }
 
diff --git a/drivers/net/wireless/airo.c b/drivers/net/wireless/airo.c
index cb429e783749..4c11699bad91 100644
--- a/drivers/net/wireless/airo.c
+++ b/drivers/net/wireless/airo.c
@@ -2381,14 +2381,10 @@ void stop_airo_card( struct net_device *dev, int freeres )
 			dev_kfree_skb(skb);
 	}
 
-	if (ai->flash)
-		kfree(ai->flash);
-	if (ai->rssi)
-		kfree(ai->rssi);
-	if (ai->APList)
-		kfree(ai->APList);
-	if (ai->SSID)
-		kfree(ai->SSID);
+	kfree(ai->flash);
+	kfree(ai->rssi);
+	kfree(ai->APList);
+	kfree(ai->SSID);
 	if (freeres) {
 		/* PCMCIA frees this stuff, so only for PCI and ISA */
 	        release_region( dev->base_addr, 64 );
@@ -3626,10 +3622,8 @@ static u16 setup_card(struct airo_info *ai, u8 *mac, int lock)
 	int rc;
 
 	memset( &mySsid, 0, sizeof( mySsid ) );
-	if (ai->flash) {
-		kfree (ai->flash);
-		ai->flash = NULL;
-	}
+	kfree (ai->flash);
+	ai->flash = NULL;
 
 	/* The NOP is the first step in getting the card going */
 	cmd.cmd = NOP;
@@ -3666,14 +3660,10 @@ static u16 setup_card(struct airo_info *ai, u8 *mac, int lock)
 		tdsRssiRid rssi_rid;
 		CapabilityRid cap_rid;
 
-		if (ai->APList) {
-			kfree(ai->APList);
-			ai->APList = NULL;
-		}
-		if (ai->SSID) {
-			kfree(ai->SSID);
-			ai->SSID = NULL;
-		}
+		kfree(ai->APList);
+		ai->APList = NULL;
+		kfree(ai->SSID);
+		ai->SSID = NULL;
 		// general configuration (read/modify/write)
 		status = readConfigRid(ai, lock);
 		if ( status != SUCCESS ) return ERROR;
@@ -3687,10 +3677,8 @@ static u16 setup_card(struct airo_info *ai, u8 *mac, int lock)
 				memcpy(ai->rssi, (u8*)&rssi_rid + 2, 512); /* Skip RID length member */
 		}
 		else {
-			if (ai->rssi) {
-				kfree(ai->rssi);
-				ai->rssi = NULL;
-			}
+			kfree(ai->rssi);
+			ai->rssi = NULL;
 			if (cap_rid.softCap & 8)
 				ai->config.rmode |= RXMODE_NORMALIZED_RSSI;
 			else
@@ -5369,11 +5357,13 @@ static int proc_BSSList_open( struct inode *inode, struct file *file ) {
 
 static int proc_close( struct inode *inode, struct file *file )
 {
-	struct proc_data *data = (struct proc_data *)file->private_data;
-	if ( data->on_close != NULL ) data->on_close( inode, file );
-	if ( data->rbuffer ) kfree( data->rbuffer );
-	if ( data->wbuffer ) kfree( data->wbuffer );
-	kfree( data );
+	struct proc_data *data = file->private_data;
+
+	if (data->on_close != NULL)
+		data->on_close(inode, file);
+	kfree(data->rbuffer);
+	kfree(data->wbuffer);
+	kfree(data);
 	return 0;
 }
 
diff --git a/drivers/net/wireless/airo_cs.c b/drivers/net/wireless/airo_cs.c
index bf25584d68d3..784de9109113 100644
--- a/drivers/net/wireless/airo_cs.c
+++ b/drivers/net/wireless/airo_cs.c
@@ -258,9 +258,7 @@ static void airo_detach(dev_link_t *link)
 	
 	/* Unlink device structure, free pieces */
 	*linkp = link->next;
-	if (link->priv) {
-		kfree(link->priv);
-	}
+	kfree(link->priv);
 	kfree(link);
 	
 } /* airo_detach */
diff --git a/drivers/net/wireless/atmel.c b/drivers/net/wireless/atmel.c
index d57011028b72..1fbe027d26b6 100644
--- a/drivers/net/wireless/atmel.c
+++ b/drivers/net/wireless/atmel.c
@@ -1653,8 +1653,7 @@ void stop_atmel_card(struct net_device *dev, int freeres)
 	unregister_netdev(dev);
 	remove_proc_entry("driver/atmel", NULL);
 	free_irq(dev->irq, dev);
-	if (priv->firmware)
-		kfree(priv->firmware);
+	kfree(priv->firmware);
 	if (freeres) {
 		/* PCMCIA frees this stuff, so only for PCI */
 	        release_region(dev->base_addr, 64);
@@ -2450,8 +2449,7 @@ static int atmel_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
 			break;
 		}
 
-		if (priv->firmware)
-			kfree(priv->firmware);
+		kfree(priv->firmware);
 		
 		priv->firmware = new_firmware;
 		priv->firmware_length = com.len;
diff --git a/drivers/net/wireless/atmel_cs.c b/drivers/net/wireless/atmel_cs.c
index ff031a3985b3..195cb36619e8 100644
--- a/drivers/net/wireless/atmel_cs.c
+++ b/drivers/net/wireless/atmel_cs.c
@@ -259,8 +259,7 @@ static void atmel_detach(dev_link_t *link)
 
 	/* Unlink device structure, free pieces */
 	*linkp = link->next;
-	if (link->priv)
-		kfree(link->priv);
+	kfree(link->priv);
 	kfree(link);
 }
 
diff --git a/drivers/net/wireless/hostap/hostap_ioctl.c b/drivers/net/wireless/hostap/hostap_ioctl.c
index 53f5246c40aa..2617d70bcda9 100644
--- a/drivers/net/wireless/hostap/hostap_ioctl.c
+++ b/drivers/net/wireless/hostap/hostap_ioctl.c
@@ -552,7 +552,6 @@ static int prism2_ioctl_giwaplist(struct net_device *dev,
 
 	kfree(addr);
 	kfree(qual);
-
 	return 0;
 }
 
@@ -3081,9 +3080,7 @@ static int prism2_ioctl_priv_download(local_info_t *local, struct iw_point *p)
 	ret = local->func->download(local, param);
 
  out:
-	if (param != NULL)
-		kfree(param);
-
+	kfree(param);
 	return ret;
 }
 #endif /* PRISM2_DOWNLOAD_SUPPORT */
@@ -3890,9 +3887,7 @@ static int prism2_ioctl_priv_hostapd(local_info_t *local, struct iw_point *p)
 	}
 
  out:
-	if (param != NULL)
-		kfree(param);
-
+	kfree(param);
 	return ret;
 }
 
diff --git a/drivers/net/wireless/prism54/islpci_dev.c b/drivers/net/wireless/prism54/islpci_dev.c
index 6c9584a9f284..78bdb359835e 100644
--- a/drivers/net/wireless/prism54/islpci_dev.c
+++ b/drivers/net/wireless/prism54/islpci_dev.c
@@ -754,8 +754,7 @@ islpci_free_memory(islpci_private *priv)
 			pci_unmap_single(priv->pdev, buf->pci_addr,
 					 buf->size, PCI_DMA_FROMDEVICE);
 		buf->pci_addr = 0;
-		if (buf->mem)
-			kfree(buf->mem);
+		kfree(buf->mem);
 		buf->size = 0;
 		buf->mem = NULL;
         }
diff --git a/drivers/net/wireless/prism54/oid_mgt.c b/drivers/net/wireless/prism54/oid_mgt.c
index 12123e24b113..eea2f04c8c6d 100644
--- a/drivers/net/wireless/prism54/oid_mgt.c
+++ b/drivers/net/wireless/prism54/oid_mgt.c
@@ -268,11 +268,10 @@ mgt_clean(islpci_private *priv)
 
 	if (!priv->mib)
 		return;
-	for (i = 0; i < OID_NUM_LAST; i++)
-		if (priv->mib[i]) {
-			kfree(priv->mib[i]);
-			priv->mib[i] = NULL;
-		}
+	for (i = 0; i < OID_NUM_LAST; i++) {
+		kfree(priv->mib[i]);
+		priv->mib[i] = NULL;
+	}
 	kfree(priv->mib);
 	priv->mib = NULL;
 }
diff --git a/drivers/net/wireless/strip.c b/drivers/net/wireless/strip.c
index 7bc7fc823128..d25264ba0c0e 100644
--- a/drivers/net/wireless/strip.c
+++ b/drivers/net/wireless/strip.c
@@ -860,12 +860,9 @@ static int allocate_buffers(struct strip *strip_info, int mtu)
 		strip_info->mtu = dev->mtu = mtu;
 		return (1);
 	}
-	if (r)
-		kfree(r);
-	if (s)
-		kfree(s);
-	if (t)
-		kfree(t);
+	kfree(r);
+	kfree(s);
+	kfree(t);
 	return (0);
 }
 
@@ -922,13 +919,9 @@ static int strip_change_mtu(struct net_device *dev, int new_mtu)
 	printk(KERN_NOTICE "%s: strip MTU changed fom %d to %d.\n",
 	       strip_info->dev->name, old_mtu, strip_info->mtu);
 
-	if (orbuff)
-		kfree(orbuff);
-	if (osbuff)
-		kfree(osbuff);
-	if (otbuff)
-		kfree(otbuff);
-
+	kfree(orbuff);
+	kfree(osbuff);
+	kfree(otbuff);
 	return 0;
 }
 
@@ -2498,18 +2491,13 @@ static int strip_close_low(struct net_device *dev)
 	/*
 	 * Free all STRIP frame buffers.
 	 */
-	if (strip_info->rx_buff) {
-		kfree(strip_info->rx_buff);
-		strip_info->rx_buff = NULL;
-	}
-	if (strip_info->sx_buff) {
-		kfree(strip_info->sx_buff);
-		strip_info->sx_buff = NULL;
-	}
-	if (strip_info->tx_buff) {
-		kfree(strip_info->tx_buff);
-		strip_info->tx_buff = NULL;
-	}
+	kfree(strip_info->rx_buff);
+	strip_info->rx_buff = NULL;
+	kfree(strip_info->sx_buff);
+	strip_info->sx_buff = NULL;
+	kfree(strip_info->tx_buff);
+	strip_info->tx_buff = NULL;
+
 	del_timer(&strip_info->idle_timer);
 	return 0;
 }
diff --git a/include/net/ax25.h b/include/net/ax25.h
index 30bb4a893237..2250a18b0cbb 100644
--- a/include/net/ax25.h
+++ b/include/net/ax25.h
@@ -237,8 +237,7 @@ typedef struct ax25_cb {
 static __inline__ void ax25_cb_put(ax25_cb *ax25)
 {
 	if (atomic_dec_and_test(&ax25->refcount)) {
-		if (ax25->digipeat)
-			kfree(ax25->digipeat);
+		kfree(ax25->digipeat);
 		kfree(ax25);
 	}
 }
diff --git a/include/net/netrom.h b/include/net/netrom.h
index a6bf6e0f606a..a5ee53bce62f 100644
--- a/include/net/netrom.h
+++ b/include/net/netrom.h
@@ -136,8 +136,7 @@ static __inline__ void nr_node_put(struct nr_node *nr_node)
 static __inline__ void nr_neigh_put(struct nr_neigh *nr_neigh)
 {
 	if (atomic_dec_and_test(&nr_neigh->refcount)) {
-		if (nr_neigh->digipeat != NULL)
-			kfree(nr_neigh->digipeat);
+		kfree(nr_neigh->digipeat);
 		kfree(nr_neigh);
 	}
 }
-- 
cgit v1.2.3


From 4f075707a9380592586d608a8d04dfbdb3c40339 Mon Sep 17 00:00:00 2001
From: Komuro <komurojun-mbn@nifty.com>
Date: Fri, 28 Oct 2005 16:55:55 -0400
Subject: [netdrvr] ne2k-pci based card does not support bus-mastering.

pci_set_master is unnecessary.

Signed-off-by: komurojun-mbn@nifty.com
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
---
 drivers/net/ne2k-pci.c | 1 -
 1 file changed, 1 deletion(-)

(limited to 'drivers')

diff --git a/drivers/net/ne2k-pci.c b/drivers/net/ne2k-pci.c
index e531a4eedfee..d11821dd86ed 100644
--- a/drivers/net/ne2k-pci.c
+++ b/drivers/net/ne2k-pci.c
@@ -675,7 +675,6 @@ static int ne2k_pci_resume (struct pci_dev *pdev)
 	pci_set_power_state(pdev, 0);
 	pci_restore_state(pdev);
 	pci_enable_device(pdev);
-	pci_set_master(pdev);
 	NS8390_init(dev, 1);
 	netif_device_attach(dev);
 
-- 
cgit v1.2.3


From ad18b0ea089928367185e13d11424aea91d4b41f Mon Sep 17 00:00:00 2001
From: Panagiotis Issaris <panagiotis.issaris@gmail.com>
Date: Mon, 5 Sep 2005 04:14:10 +0200
Subject: [PATCH] ipw2200: Missing kmalloc check

The ipw2200 driver code in current GIT contains a kmalloc() followed by
a memset() without handling a possible memory allocation failure.

Signed-off-by: Panagiotis Issaris <panagiotis.issaris@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
---
 drivers/net/wireless/ipw2200.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'drivers')

diff --git a/drivers/net/wireless/ipw2200.c b/drivers/net/wireless/ipw2200.c
index de4e6c23e4b8..3db0c32afe82 100644
--- a/drivers/net/wireless/ipw2200.c
+++ b/drivers/net/wireless/ipw2200.c
@@ -4030,6 +4030,10 @@ static struct ipw_rx_queue *ipw_rx_queue_alloc(struct ipw_priv *priv)
 	int i;
 
 	rxq = (struct ipw_rx_queue *)kmalloc(sizeof(*rxq), GFP_KERNEL);
+	if (unlikely(!rxq)) {
+		IPW_ERROR("memory allocation failed\n");
+		return NULL;
+	}
 	memset(rxq, 0, sizeof(*rxq));
 	spin_lock_init(&rxq->lock);
 	INIT_LIST_HEAD(&rxq->rx_free);
-- 
cgit v1.2.3


From b6a1d5f88473138497d8694ddf174e8e91300068 Mon Sep 17 00:00:00 2001
From: "Martin J. Bligh" <mbligh@mbligh.org>
Date: Fri, 28 Oct 2005 15:14:44 -0700
Subject: [PATCH] e1000: remove warning about e1000_suspend

e1000_suspend is only used under #ifdef CONFIG_PM.  Move the declaration of
it to be the same way, just like e1000_resume, otherwise gcc whines on
compile.  I offer as evidence:

	static struct pci_driver e1000_driver = {
 	       .name     = e1000_driver_name,
 	      .id_table = e1000_pci_tbl,
  	      .probe    = e1000_probe,
  	      .remove   = __devexit_p(e1000_remove),
 	      /* Power Managment Hooks */
	#ifdef CONFIG_PM
 	       .suspend  = e1000_suspend,
 	       .resume   = e1000_resume
	#endif
	};

Cc: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
---
 drivers/net/e1000/e1000_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers')

diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c
index 6b72f6acdd54..a0023f357cb1 100644
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c
@@ -4193,6 +4193,7 @@ e1000_set_spd_dplx(struct e1000_adapter *adapter, uint16_t spddplx)
 	return 0;
 }
 
+#ifdef CONFIG_PM
 static int
 e1000_suspend(struct pci_dev *pdev, pm_message_t state)
 {
@@ -4289,7 +4290,6 @@ e1000_suspend(struct pci_dev *pdev, pm_message_t state)
 	return 0;
 }
 
-#ifdef CONFIG_PM
 static int
 e1000_resume(struct pci_dev *pdev)
 {
-- 
cgit v1.2.3


From a1bfcd97414d3e9b3c96f27d9b1a1e76c9543ba6 Mon Sep 17 00:00:00 2001
From: Florin Malita <fmalita@gmail.com>
Date: Fri, 28 Oct 2005 15:14:46 -0700
Subject: [PATCH] eepro.c: module_param_array cleanup

num_params is unused (and unusable in this form).

Signed-off-by: Florin Malita <fmalita@gmail.com>
Cc: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
---
 drivers/net/eepro.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

(limited to 'drivers')

diff --git a/drivers/net/eepro.c b/drivers/net/eepro.c
index dcb3028bb60f..1ce2c675b8a7 100644
--- a/drivers/net/eepro.c
+++ b/drivers/net/eepro.c
@@ -1797,10 +1797,9 @@ MODULE_AUTHOR("Pascal Dupuis and others");
 MODULE_DESCRIPTION("Intel i82595 ISA EtherExpressPro10/10+ driver");
 MODULE_LICENSE("GPL");
 
-static int num_params;
-module_param_array(io, int, &num_params, 0);
-module_param_array(irq, int, &num_params, 0);
-module_param_array(mem, int, &num_params, 0);
+module_param_array(io, int, NULL, 0);
+module_param_array(irq, int, NULL, 0);
+module_param_array(mem, int, NULL, 0);
 module_param(autodetect, int, 0);
 MODULE_PARM_DESC(io, "EtherExpress Pro/10 I/O base addres(es)");
 MODULE_PARM_DESC(irq, "EtherExpress Pro/10 IRQ number(s)");
-- 
cgit v1.2.3


From 46e178535836dcd7ef92f179218628d101892c59 Mon Sep 17 00:00:00 2001
From: Pavel Machek <pavel@ucw.cz>
Date: Fri, 28 Oct 2005 15:14:47 -0700
Subject: [PATCH] b44: fix suspend/resume

Fix suspend/resume on b44 by freeing/reacquiring irq.  Otherwise it hangs
on resume.

Signed-off-by: Pavel Machek <pavel@suse.cz>
Cc: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
---
 drivers/net/b44.c | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'drivers')

diff --git a/drivers/net/b44.c b/drivers/net/b44.c
index 5485e3b1cd35..0ee3e27969c6 100644
--- a/drivers/net/b44.c
+++ b/drivers/net/b44.c
@@ -2041,6 +2041,8 @@ static int b44_suspend(struct pci_dev *pdev, pm_message_t state)
 	b44_free_rings(bp);
 
 	spin_unlock_irq(&bp->lock);
+
+	free_irq(dev->irq, dev);
 	pci_disable_device(pdev);
 	return 0;
 }
@@ -2057,6 +2059,9 @@ static int b44_resume(struct pci_dev *pdev)
 	if (!netif_running(dev))
 		return 0;
 
+	if (request_irq(dev->irq, b44_interrupt, SA_SHIRQ, dev->name, dev))
+		printk(KERN_ERR PFX "%s: request_irq failed\n", dev->name);
+
 	spin_lock_irq(&bp->lock);
 
 	b44_init_rings(bp);
-- 
cgit v1.2.3


From a7ec15da65ab64c5f97beedc4ff21cf3e0ae71c0 Mon Sep 17 00:00:00 2001
From: Ravikiran G Thirumalai <kiran@scalex86.org>
Date: Fri, 28 Oct 2005 15:14:49 -0700
Subject: [PATCH] e1000: use vmalloc_node()

Allocate node local tx and rx descriptors for the e1000 driver

Signed-off-by: Ravikiran Thirumalai <kiran@scalex86.org>
Cc: Christoph Lameter <clameter@engr.sgi.com>
Cc: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
---
 drivers/net/e1000/e1000_main.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

(limited to 'drivers')

diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c
index a0023f357cb1..d97ad89f5dd2 100644
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c
@@ -1149,7 +1149,8 @@ e1000_setup_tx_resources(struct e1000_adapter *adapter,
 	int size;
 
 	size = sizeof(struct e1000_buffer) * txdr->count;
-	txdr->buffer_info = vmalloc(size);
+
+	txdr->buffer_info = vmalloc_node(size, pcibus_to_node(pdev->bus));
 	if(!txdr->buffer_info) {
 		DPRINTK(PROBE, ERR,
 		"Unable to allocate memory for the transmit descriptor ring\n");
@@ -1366,7 +1367,7 @@ e1000_setup_rx_resources(struct e1000_adapter *adapter,
 	int size, desc_len;
 
 	size = sizeof(struct e1000_buffer) * rxdr->count;
-	rxdr->buffer_info = vmalloc(size);
+	rxdr->buffer_info = vmalloc_node(size, pcibus_to_node(pdev->bus));
 	if (!rxdr->buffer_info) {
 		DPRINTK(PROBE, ERR,
 		"Unable to allocate memory for the receive descriptor ring\n");
-- 
cgit v1.2.3


From 63f57fb69b017230c77c40f1713e40885ae6d159 Mon Sep 17 00:00:00 2001
From: Andrew Morton <akpm@osdl.org>
Date: Fri, 28 Oct 2005 15:14:51 -0700
Subject: [PATCH] revert "orinoco: Information leakage due to incorrect
 padding"

Cc: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
---
 drivers/net/wireless/orinoco.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'drivers')

diff --git a/drivers/net/wireless/orinoco.c b/drivers/net/wireless/orinoco.c
index d3d4ec9e242e..70a3477a2061 100644
--- a/drivers/net/wireless/orinoco.c
+++ b/drivers/net/wireless/orinoco.c
@@ -490,7 +490,8 @@ static int orinoco_xmit(struct sk_buff *skb, struct net_device *dev)
 		return 0;
 	}
 
-	/* Check packet length, pad short packets, round up odd length */
+	/* Length of the packet body */
+	/* FIXME: what if the skb is smaller than this? */
 	len = max_t(int, ALIGN(skb->len, 2), ETH_ZLEN);
 	skb = skb_padto(skb, len);
 	if (skb == NULL)
@@ -547,7 +548,8 @@ static int orinoco_xmit(struct sk_buff *skb, struct net_device *dev)
 		p = skb->data;
 	}
 
-	err = hermes_bap_pwrite(hw, USER_BAP, p, data_len,
+	/* Round up for odd length packets */
+	err = hermes_bap_pwrite(hw, USER_BAP, p, ALIGN(data_len, 2),
 				txfid, data_off);
 	if (err) {
 		printk(KERN_ERR "%s: Error %d writing packet to BAP\n",
-- 
cgit v1.2.3


From 2c36ed22c6f64de94c6c3b7258dd7285bb093401 Mon Sep 17 00:00:00 2001
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
Date: Fri, 28 Oct 2005 15:14:52 -0700
Subject: [PATCH] Better fixup for the orinoco driver

The latest kernel added a pretty ugly fix for the orinoco etherleak bug
which contains bogus skb->len checks already done by the caller and causes
copies of all odd sized frames (which are quite common)

While the skb->len check should be ripped out the other fix is harder to do
properly so I'm proposing for this the -mm tree only until next 2.6.x so
that it gets tested.

Instead of copying buffers around blindly this code implements a padding
aware version of the hermes buffer writing function which does padding as
the buffer is loaded and thus more cleanly and without bogus 1.5K copies.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
---
 drivers/net/wireless/hermes.c  | 38 ++++++++++++++++++++++++++++++++++++++
 drivers/net/wireless/hermes.h  |  2 ++
 drivers/net/wireless/orinoco.c | 11 +++++++++--
 3 files changed, 49 insertions(+), 2 deletions(-)

(limited to 'drivers')

diff --git a/drivers/net/wireless/hermes.c b/drivers/net/wireless/hermes.c
index eba0d9d2b7c5..579480dad374 100644
--- a/drivers/net/wireless/hermes.c
+++ b/drivers/net/wireless/hermes.c
@@ -444,6 +444,43 @@ int hermes_bap_pwrite(hermes_t *hw, int bap, const void *buf, unsigned len,
 	return err;
 }
 
+/* Write a block of data to the chip's buffer with padding if
+ * neccessary, via the BAP. Synchronization/serialization is the
+ * caller's problem. len must be even.
+ *
+ * Returns: < 0 on internal failure (errno), 0 on success, > 0 on error from firmware
+ */
+int hermes_bap_pwrite_pad(hermes_t *hw, int bap, const void *buf, unsigned data_len, unsigned len,
+		      u16 id, u16 offset)
+{
+	int dreg = bap ? HERMES_DATA1 : HERMES_DATA0;
+	int err = 0;
+
+	if (len < 0 || len % 2 || data_len > len)
+		return -EINVAL;
+
+	err = hermes_bap_seek(hw, bap, id, offset);
+	if (err)
+		goto out;
+
+	/* Transfer all the complete words of data */
+	hermes_write_words(hw, dreg, buf, data_len/2);
+	/* If there is an odd byte left over pad and transfer it */
+	if (data_len & 1) {
+		u8 end[2];
+		end[1] = 0;
+		end[0] = ((unsigned char *)buf)[data_len - 1];
+		hermes_write_words(hw, dreg, end, 1);
+		data_len ++;
+	}
+	/* Now send zeros for the padding */
+	if (data_len < len)
+		hermes_clear_words(hw, dreg, (len - data_len) / 2);
+	/* Complete */
+ out:
+	return err;
+}
+
 /* Read a Length-Type-Value record from the card.
  *
  * If length is NULL, we ignore the length read from the card, and
@@ -531,6 +568,7 @@ EXPORT_SYMBOL(hermes_allocate);
 
 EXPORT_SYMBOL(hermes_bap_pread);
 EXPORT_SYMBOL(hermes_bap_pwrite);
+EXPORT_SYMBOL(hermes_bap_pwrite_pad);
 EXPORT_SYMBOL(hermes_read_ltv);
 EXPORT_SYMBOL(hermes_write_ltv);
 
diff --git a/drivers/net/wireless/hermes.h b/drivers/net/wireless/hermes.h
index ad28e3294360..a6bd472d75d4 100644
--- a/drivers/net/wireless/hermes.h
+++ b/drivers/net/wireless/hermes.h
@@ -376,6 +376,8 @@ int hermes_bap_pread(hermes_t *hw, int bap, void *buf, unsigned len,
 		       u16 id, u16 offset);
 int hermes_bap_pwrite(hermes_t *hw, int bap, const void *buf, unsigned len,
 			u16 id, u16 offset);
+int hermes_bap_pwrite_pad(hermes_t *hw, int bap, const void *buf,
+			unsigned data_len, unsigned len, u16 id, u16 offset);
 int hermes_read_ltv(hermes_t *hw, int bap, u16 rid, unsigned buflen,
 		    u16 *length, void *buf);
 int hermes_write_ltv(hermes_t *hw, int bap, u16 rid,
diff --git a/drivers/net/wireless/orinoco.c b/drivers/net/wireless/orinoco.c
index 70a3477a2061..488ab06fb79f 100644
--- a/drivers/net/wireless/orinoco.c
+++ b/drivers/net/wireless/orinoco.c
@@ -542,14 +542,21 @@ static int orinoco_xmit(struct sk_buff *skb, struct net_device *dev)
 			stats->tx_errors++;
 			goto fail;
 		}
+		/* Actual xfer length - allow for padding */
+		len = ALIGN(data_len, 2);
+		if (len < ETH_ZLEN - ETH_HLEN)
+			len = ETH_ZLEN - ETH_HLEN;
 	} else { /* IEEE 802.3 frame */
 		data_len = len + ETH_HLEN;
 		data_off = HERMES_802_3_OFFSET;
 		p = skb->data;
+		/* Actual xfer length - round up for odd length packets */
+		len = ALIGN(data_len, 2);
+		if (len < ETH_ZLEN)
+			len = ETH_ZLEN;
 	}
 
-	/* Round up for odd length packets */
-	err = hermes_bap_pwrite(hw, USER_BAP, p, ALIGN(data_len, 2),
+	err = hermes_bap_pwrite_pad(hw, USER_BAP, p, data_len, len,
 				txfid, data_off);
 	if (err) {
 		printk(KERN_ERR "%s: Error %d writing packet to BAP\n",
-- 
cgit v1.2.3


From 977e74b5f60de3df9831897b726c16870878eee4 Mon Sep 17 00:00:00 2001
From: Ashutosh Naik <ashutosh_naik@adaptec.com>
Date: Fri, 28 Oct 2005 15:14:53 -0700
Subject: [PATCH] e1000: Fixes e1000_suspend warning when CONFIG_PM is not
 enabled

drivers/net/e1000/e1000_main.c:3645: warning: `e1000_suspend' defined
but not used

Signed-off-by: Ashutosh Naik <ashutosh_naik@adaptec.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
---
 drivers/net/e1000/e1000_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers')

diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c
index d97ad89f5dd2..efbbda7cbcbf 100644
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c
@@ -191,8 +191,8 @@ static void e1000_vlan_rx_add_vid(struct net_device *netdev, uint16_t vid);
 static void e1000_vlan_rx_kill_vid(struct net_device *netdev, uint16_t vid);
 static void e1000_restore_vlan(struct e1000_adapter *adapter);
 
-static int e1000_suspend(struct pci_dev *pdev, pm_message_t state);
 #ifdef CONFIG_PM
+static int e1000_suspend(struct pci_dev *pdev, pm_message_t state);
 static int e1000_resume(struct pci_dev *pdev);
 #endif
 
-- 
cgit v1.2.3


From f9a5f7d3f3319aac02a7a36a2fea10bd33c3d16a Mon Sep 17 00:00:00 2001
From: Tobias Klauser <tklauser@nuerscht.ch>
Date: Sat, 29 Oct 2005 15:09:26 +0200
Subject: [PATCH] drivers/net/tg3: Use the DMA_{32,64}BIT_MASK constants

This one from my DMA_{32,64}BIT_MASK series did not seem to make it
through to upstream.

Use the DMA_{32,64}BIT_MASK constants from dma-mapping.h when calling
pci_set_dma_mask() or pci_set_consistent_dma_mask()
This patch includes dma-mapping.h explicitly because it caused errors
on some architectures otherwise.
See http://marc.theaimsgroup.com/?t=108001993000001&r=1&w=2 for details

Signed-off-by: Tobias Klauser <tklauser@nuerscht.ch>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
---
 drivers/net/tg3.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

(limited to 'drivers')

diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index b547233ad9f7..1828a6bf8458 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -37,6 +37,7 @@
 #include <linux/tcp.h>
 #include <linux/workqueue.h>
 #include <linux/prefetch.h>
+#include <linux/dma-mapping.h>
 
 #include <net/checksum.h>
 
@@ -10522,17 +10523,17 @@ static int __devinit tg3_init_one(struct pci_dev *pdev,
 	}
 
 	/* Configure DMA attributes. */
-	err = pci_set_dma_mask(pdev, 0xffffffffffffffffULL);
+	err = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
 	if (!err) {
 		pci_using_dac = 1;
-		err = pci_set_consistent_dma_mask(pdev, 0xffffffffffffffffULL);
+		err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
 		if (err < 0) {
 			printk(KERN_ERR PFX "Unable to obtain 64 bit DMA "
 			       "for consistent allocations\n");
 			goto err_out_free_res;
 		}
 	} else {
-		err = pci_set_dma_mask(pdev, 0xffffffffULL);
+		err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
 		if (err) {
 			printk(KERN_ERR PFX "No usable DMA configuration, "
 			       "aborting.\n");
-- 
cgit v1.2.3


From eef55ac7bf16669cb022db30143d0a6d8cb1f5e6 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@ftp.linux.org.uk>
Date: Sat, 29 Oct 2005 06:36:27 +0100
Subject: [PATCH] s2io iomem annotations

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
---
 drivers/net/s2io.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

(limited to 'drivers')

diff --git a/drivers/net/s2io.c b/drivers/net/s2io.c
index 5ea897714a14..3f5e93aad5c7 100644
--- a/drivers/net/s2io.c
+++ b/drivers/net/s2io.c
@@ -3044,7 +3044,7 @@ int s2io_set_swapper(nic_t * sp)
 
 int wait_for_msix_trans(nic_t *nic, int i)
 {
-	XENA_dev_config_t *bar0 = (XENA_dev_config_t *) nic->bar0;
+	XENA_dev_config_t __iomem *bar0 = nic->bar0;
 	u64 val64;
 	int ret = 0, cnt = 0;
 
@@ -3065,7 +3065,7 @@ int wait_for_msix_trans(nic_t *nic, int i)
 
 void restore_xmsi_data(nic_t *nic)
 {
-	XENA_dev_config_t *bar0 = (XENA_dev_config_t *) nic->bar0;
+	XENA_dev_config_t __iomem *bar0 = nic->bar0;
 	u64 val64;
 	int i;
 
@@ -3083,7 +3083,7 @@ void restore_xmsi_data(nic_t *nic)
 
 void store_xmsi_data(nic_t *nic)
 {
-	XENA_dev_config_t *bar0 = (XENA_dev_config_t *) nic->bar0;
+	XENA_dev_config_t __iomem *bar0 = nic->bar0;
 	u64 val64, addr, data;
 	int i;
 
@@ -3106,7 +3106,7 @@ void store_xmsi_data(nic_t *nic)
 
 int s2io_enable_msi(nic_t *nic)
 {
-	XENA_dev_config_t *bar0 = (XENA_dev_config_t *) nic->bar0;
+	XENA_dev_config_t __iomem *bar0 = nic->bar0;
 	u16 msi_ctrl, msg_val;
 	struct config_param *config = &nic->config;
 	struct net_device *dev = nic->dev;
@@ -3156,7 +3156,7 @@ int s2io_enable_msi(nic_t *nic)
 
 int s2io_enable_msi_x(nic_t *nic)
 {
-	XENA_dev_config_t *bar0 = (XENA_dev_config_t *) nic->bar0;
+	XENA_dev_config_t __iomem *bar0 = nic->bar0;
 	u64 tx_mat, rx_mat;
 	u16 msi_control; /* Temp variable */
 	int ret, i, j, msix_indx = 1;
-- 
cgit v1.2.3


From e71180f3689e00c5a1095925352a72dacdd62e34 Mon Sep 17 00:00:00 2001
From: Patrick McHardy <kaber@trash.net>
Date: Sat, 29 Oct 2005 13:31:39 +0100
Subject: [PATCH] prism54: Free skb after disabling interrupts

The dev_kfree_skb in islpci_eth_transmit happens while irqs are still
disabled, so either dev_kfree_skb_irq needs to be used or the skb
needs to be freed after irqs have been enabled again. This patch
should fix it.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Daniel Drake <dsd@gentoo.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
---
 drivers/net/wireless/prism54/islpci_eth.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

(limited to 'drivers')

diff --git a/drivers/net/wireless/prism54/islpci_eth.c b/drivers/net/wireless/prism54/islpci_eth.c
index 0975dd4ed77d..3b49efa37ee5 100644
--- a/drivers/net/wireless/prism54/islpci_eth.c
+++ b/drivers/net/wireless/prism54/islpci_eth.c
@@ -241,12 +241,10 @@ islpci_eth_transmit(struct sk_buff *skb, struct net_device *ndev)
 	return 0;
 
       drop_free:
-	/* free the skbuf structure before aborting */
-	dev_kfree_skb(skb);
-	skb = NULL;
-
 	priv->statistics.tx_dropped++;
 	spin_unlock_irqrestore(&priv->slock, flags);
+	dev_kfree_skb(skb);
+	skb = NULL;
 	return err;
 }
 
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