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author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-08 11:57:17 -0700 |
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committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-08 11:57:17 -0700 |
commit | 9028780a3e6d2c3dd940e89b377765cca008b6df (patch) | |
tree | 1e72fceedcb72b65e8851d0a56586a699e09ad2e /drivers/net/pasemi_mac.c | |
parent | 5335a40be6867eff986a31bcd8fc82a5cb1e16bb (diff) | |
parent | e824f7836de25b1c2f659a2412d32227f1f68bcb (diff) | |
download | lwn-9028780a3e6d2c3dd940e89b377765cca008b6df.tar.gz lwn-9028780a3e6d2c3dd940e89b377765cca008b6df.zip |
Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6: (40 commits)
[netdrvr] atl1: fix build
pasemi_mac: Use local-mac-address instead of mac-address if available
pasemi_mac: PHY support
pasemi_mac: Add msglevel support and "debug" module param
pasemi_mac: Logic cleanup / rx performance improvements
pasemi_mac: Minor cleanup / define fixes
pasemi_mac: Add SKB reuse / copy-break
pasemi_mac: Timer and interrupt fixes
pasemi_mac: Abstract and fix up interrupt restart routines
pasemi_mac: Move the IRQ mapping from the PCI layer to the driver
tc35815: Remove unnecessary skb->dev assignment
drivers/net/dm9000: Convert to generic boolean
AT91RM9200 Ethernet: Fix multicast addressing
AT91RM9200 Ethernet: Support additional PHYs
PCMCIA-NETDEV : xirc2ps_cs: bugfix of multicast code
sky2: re-enable 88E8056 for most motherboards
MIPS: Drop unnecessary CONFIG_ISA from RBTX49XX
ne: MIPS: Use platform_driver for ne on RBTX49XX
ne: Add NEEDS_PORTLIST to control ISA auto-probe
ne: Misc fixes for platform driver.
...
Fix conflict in drivers/net/pasemi_mac.c (get_property() got renamed to
of_get_property()) manually.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/net/pasemi_mac.c')
-rw-r--r-- | drivers/net/pasemi_mac.c | 404 |
1 files changed, 311 insertions, 93 deletions
diff --git a/drivers/net/pasemi_mac.c b/drivers/net/pasemi_mac.c index 07eb9b24a97f..bc7f3dee6e5b 100644 --- a/drivers/net/pasemi_mac.c +++ b/drivers/net/pasemi_mac.c @@ -33,6 +33,8 @@ #include <linux/tcp.h> #include <net/checksum.h> +#include <asm/irq.h> + #include "pasemi_mac.h" @@ -51,6 +53,16 @@ #define RX_RING_SIZE 512 #define TX_RING_SIZE 512 +#define DEFAULT_MSG_ENABLE \ + (NETIF_MSG_DRV | \ + NETIF_MSG_PROBE | \ + NETIF_MSG_LINK | \ + NETIF_MSG_TIMER | \ + NETIF_MSG_IFDOWN | \ + NETIF_MSG_IFUP | \ + NETIF_MSG_RX_ERR | \ + NETIF_MSG_TX_ERR) + #define TX_DESC(mac, num) ((mac)->tx->desc[(num) & (TX_RING_SIZE-1)]) #define TX_DESC_INFO(mac, num) ((mac)->tx->desc_info[(num) & (TX_RING_SIZE-1)]) #define RX_DESC(mac, num) ((mac)->rx->desc[(num) & (RX_RING_SIZE-1)]) @@ -59,11 +71,13 @@ #define BUF_SIZE 1646 /* 1500 MTU + ETH_HLEN + VLAN_HLEN + 2 64B cachelines */ -/* XXXOJN these should come out of the device tree some day */ -#define PAS_DMA_CAP_BASE 0xe00d0040 -#define PAS_DMA_CAP_SIZE 0x100 -#define PAS_DMA_COM_BASE 0xe00d0100 -#define PAS_DMA_COM_SIZE 0x100 +MODULE_LICENSE("GPL"); +MODULE_AUTHOR ("Olof Johansson <olof@lixom.net>"); +MODULE_DESCRIPTION("PA Semi PWRficient Ethernet driver"); + +static int debug = -1; /* -1 == use DEFAULT_MSG_ENABLE as value */ +module_param(debug, int, 0); +MODULE_PARM_DESC(debug, "PA Semi MAC bitmapped debugging message enable value"); static struct pasdma_status *dma_status; @@ -80,7 +94,12 @@ static int pasemi_get_mac_addr(struct pasemi_mac *mac) return -ENOENT; } - maddr = of_get_property(dn, "mac-address", NULL); + maddr = of_get_property(dn, "local-mac-address", NULL); + + /* Fall back to mac-address for older firmware */ + if (maddr == NULL) + maddr = of_get_property(dn, "mac-address", NULL); + if (maddr == NULL) { dev_warn(&pdev->dev, "no mac address in device tree, not configuring\n"); @@ -277,8 +296,8 @@ static void pasemi_mac_free_rx_resources(struct net_device *dev) for (i = 0; i < RX_RING_SIZE; i++) { info = &RX_DESC_INFO(mac, i); dp = &RX_DESC(mac, i); - if (info->dma) { - if (info->skb) { + if (info->skb) { + if (info->dma) { pci_unmap_single(mac->dma_pdev, info->dma, info->skb->len, @@ -309,82 +328,120 @@ static void pasemi_mac_replenish_rx_ring(struct net_device *dev) struct pasemi_mac *mac = netdev_priv(dev); unsigned int i; int start = mac->rx->next_to_fill; - unsigned int count; + unsigned int limit, count; - count = (mac->rx->next_to_clean + RX_RING_SIZE - + limit = (mac->rx->next_to_clean + RX_RING_SIZE - mac->rx->next_to_fill) & (RX_RING_SIZE - 1); /* Check to see if we're doing first-time setup */ if (unlikely(mac->rx->next_to_clean == 0 && mac->rx->next_to_fill == 0)) - count = RX_RING_SIZE; + limit = RX_RING_SIZE; - if (count <= 0) + if (limit <= 0) return; - for (i = start; i < start + count; i++) { + i = start; + for (count = limit; count; count--) { struct pasemi_mac_buffer *info = &RX_DESC_INFO(mac, i); u64 *buff = &RX_BUFF(mac, i); struct sk_buff *skb; dma_addr_t dma; - skb = dev_alloc_skb(BUF_SIZE); + /* skb might still be in there for recycle on short receives */ + if (info->skb) + skb = info->skb; + else + skb = dev_alloc_skb(BUF_SIZE); - if (!skb) { - count = i - start; + if (unlikely(!skb)) break; - } dma = pci_map_single(mac->dma_pdev, skb->data, skb->len, PCI_DMA_FROMDEVICE); - if (dma_mapping_error(dma)) { + if (unlikely(dma_mapping_error(dma))) { dev_kfree_skb_irq(info->skb); - count = i - start; break; } info->skb = skb; info->dma = dma; *buff = XCT_RXB_LEN(BUF_SIZE) | XCT_RXB_ADDR(dma); + i++; } wmb(); pci_write_config_dword(mac->dma_pdev, PAS_DMA_RXCHAN_INCR(mac->dma_rxch), - count); + limit - count); pci_write_config_dword(mac->dma_pdev, PAS_DMA_RXINT_INCR(mac->dma_if), - count); + limit - count); - mac->rx->next_to_fill += count; + mac->rx->next_to_fill += limit - count; } +static void pasemi_mac_restart_rx_intr(struct pasemi_mac *mac) +{ + unsigned int reg, stat; + /* Re-enable packet count interrupts: finally + * ack the packet count interrupt we got in rx_intr. + */ + + pci_read_config_dword(mac->iob_pdev, + PAS_IOB_DMA_RXCH_STAT(mac->dma_rxch), + &stat); + + reg = PAS_IOB_DMA_RXCH_RESET_PCNT(stat & PAS_IOB_DMA_RXCH_STAT_CNTDEL_M) + | PAS_IOB_DMA_RXCH_RESET_PINTC; + + pci_write_config_dword(mac->iob_pdev, + PAS_IOB_DMA_RXCH_RESET(mac->dma_rxch), + reg); +} + +static void pasemi_mac_restart_tx_intr(struct pasemi_mac *mac) +{ + unsigned int reg, stat; + + /* Re-enable packet count interrupts */ + pci_read_config_dword(mac->iob_pdev, + PAS_IOB_DMA_TXCH_STAT(mac->dma_txch), &stat); + + reg = PAS_IOB_DMA_TXCH_RESET_PCNT(stat & PAS_IOB_DMA_TXCH_STAT_CNTDEL_M) + | PAS_IOB_DMA_TXCH_RESET_PINTC; + + pci_write_config_dword(mac->iob_pdev, + PAS_IOB_DMA_TXCH_RESET(mac->dma_txch), reg); +} + + static int pasemi_mac_clean_rx(struct pasemi_mac *mac, int limit) { - unsigned int i; - int start, count; + unsigned int n; + int count; + struct pas_dma_xct_descr *dp; + struct pasemi_mac_buffer *info; + struct sk_buff *skb; + unsigned int i, len; + u64 macrx; + dma_addr_t dma; spin_lock(&mac->rx->lock); - start = mac->rx->next_to_clean; - count = 0; + n = mac->rx->next_to_clean; - for (i = start; i < (start + RX_RING_SIZE) && count < limit; i++) { - struct pas_dma_xct_descr *dp; - struct pasemi_mac_buffer *info; - struct sk_buff *skb; - unsigned int j, len; - dma_addr_t dma; + for (count = limit; count; count--) { rmb(); - dp = &RX_DESC(mac, i); + dp = &RX_DESC(mac, n); + macrx = dp->macrx; - if (!(dp->macrx & XCT_MACRX_O)) + if (!(macrx & XCT_MACRX_O)) break; - count++; info = NULL; @@ -396,29 +453,42 @@ static int pasemi_mac_clean_rx(struct pasemi_mac *mac, int limit) */ dma = (dp->ptr & XCT_PTR_ADDR_M); - for (j = start; j < (start + RX_RING_SIZE); j++) { - info = &RX_DESC_INFO(mac, j); + for (i = n; i < (n + RX_RING_SIZE); i++) { + info = &RX_DESC_INFO(mac, i); if (info->dma == dma) break; } - BUG_ON(!info); - BUG_ON(info->dma != dma); + skb = info->skb; + info->dma = 0; - pci_unmap_single(mac->dma_pdev, info->dma, info->skb->len, + pci_unmap_single(mac->dma_pdev, dma, skb->len, PCI_DMA_FROMDEVICE); - skb = info->skb; - - len = (dp->macrx & XCT_MACRX_LLEN_M) >> XCT_MACRX_LLEN_S; + len = (macrx & XCT_MACRX_LLEN_M) >> XCT_MACRX_LLEN_S; + + if (len < 256) { + struct sk_buff *new_skb = + netdev_alloc_skb(mac->netdev, len + NET_IP_ALIGN); + if (new_skb) { + skb_reserve(new_skb, NET_IP_ALIGN); + memcpy(new_skb->data - NET_IP_ALIGN, + skb->data - NET_IP_ALIGN, + len + NET_IP_ALIGN); + /* save the skb in buffer_info as good */ + skb = new_skb; + } + /* else just continue with the old one */ + } else + info->skb = NULL; skb_put(skb, len); skb->protocol = eth_type_trans(skb, mac->netdev); - if ((dp->macrx & XCT_MACRX_HTY_M) == XCT_MACRX_HTY_IPV4_OK) { + if ((macrx & XCT_MACRX_HTY_M) == XCT_MACRX_HTY_IPV4_OK) { skb->ip_summed = CHECKSUM_COMPLETE; - skb->csum = (dp->macrx & XCT_MACRX_CSUM_M) >> + skb->csum = (macrx & XCT_MACRX_CSUM_M) >> XCT_MACRX_CSUM_S; } else skb->ip_summed = CHECKSUM_NONE; @@ -428,13 +498,13 @@ static int pasemi_mac_clean_rx(struct pasemi_mac *mac, int limit) netif_receive_skb(skb); - info->dma = 0; - info->skb = NULL; dp->ptr = 0; dp->macrx = 0; + + n++; } - mac->rx->next_to_clean += count; + mac->rx->next_to_clean += limit - count; pasemi_mac_replenish_rx_ring(mac->netdev); spin_unlock(&mac->rx->lock); @@ -476,6 +546,8 @@ static int pasemi_mac_clean_tx(struct pasemi_mac *mac) mac->tx->next_to_clean += count; spin_unlock_irqrestore(&mac->tx->lock, flags); + netif_wake_queue(mac->netdev); + return count; } @@ -486,18 +558,28 @@ static irqreturn_t pasemi_mac_rx_intr(int irq, void *data) struct pasemi_mac *mac = netdev_priv(dev); unsigned int reg; - if (!(*mac->rx_status & PAS_STATUS_INT)) + if (!(*mac->rx_status & PAS_STATUS_CAUSE_M)) return IRQ_NONE; - netif_rx_schedule(dev); - pci_write_config_dword(mac->iob_pdev, PAS_IOB_DMA_COM_TIMEOUTCFG, - PAS_IOB_DMA_COM_TIMEOUTCFG_TCNT(0)); + if (*mac->rx_status & PAS_STATUS_ERROR) + printk("rx_status reported error\n"); + + /* Don't reset packet count so it won't fire again but clear + * all others. + */ + + pci_read_config_dword(mac->dma_pdev, PAS_DMA_RXINT_RCMDSTA(mac->dma_if), ®); - reg = PAS_IOB_DMA_RXCH_RESET_PINTC | PAS_IOB_DMA_RXCH_RESET_SINTC | - PAS_IOB_DMA_RXCH_RESET_DINTC; + reg = 0; + if (*mac->rx_status & PAS_STATUS_SOFT) + reg |= PAS_IOB_DMA_RXCH_RESET_SINTC; + if (*mac->rx_status & PAS_STATUS_ERROR) + reg |= PAS_IOB_DMA_RXCH_RESET_DINTC; if (*mac->rx_status & PAS_STATUS_TIMER) reg |= PAS_IOB_DMA_RXCH_RESET_TINTC; + netif_rx_schedule(dev); + pci_write_config_dword(mac->iob_pdev, PAS_IOB_DMA_RXCH_RESET(mac->dma_rxch), reg); @@ -510,31 +592,137 @@ static irqreturn_t pasemi_mac_tx_intr(int irq, void *data) struct net_device *dev = data; struct pasemi_mac *mac = netdev_priv(dev); unsigned int reg; - int was_full; - was_full = mac->tx->next_to_clean - mac->tx->next_to_use == TX_RING_SIZE; - - if (!(*mac->tx_status & PAS_STATUS_INT)) + if (!(*mac->tx_status & PAS_STATUS_CAUSE_M)) return IRQ_NONE; pasemi_mac_clean_tx(mac); - reg = PAS_IOB_DMA_TXCH_RESET_PINTC | PAS_IOB_DMA_TXCH_RESET_SINTC; - if (*mac->tx_status & PAS_STATUS_TIMER) - reg |= PAS_IOB_DMA_TXCH_RESET_TINTC; + reg = PAS_IOB_DMA_TXCH_RESET_PINTC; + + if (*mac->tx_status & PAS_STATUS_SOFT) + reg |= PAS_IOB_DMA_TXCH_RESET_SINTC; + if (*mac->tx_status & PAS_STATUS_ERROR) + reg |= PAS_IOB_DMA_TXCH_RESET_DINTC; pci_write_config_dword(mac->iob_pdev, PAS_IOB_DMA_TXCH_RESET(mac->dma_txch), reg); - if (was_full) - netif_wake_queue(dev); - return IRQ_HANDLED; } +static void pasemi_adjust_link(struct net_device *dev) +{ + struct pasemi_mac *mac = netdev_priv(dev); + int msg; + unsigned int flags; + unsigned int new_flags; + + if (!mac->phydev->link) { + /* If no link, MAC speed settings don't matter. Just report + * link down and return. + */ + if (mac->link && netif_msg_link(mac)) + printk(KERN_INFO "%s: Link is down.\n", dev->name); + + netif_carrier_off(dev); + mac->link = 0; + + return; + } else + netif_carrier_on(dev); + + pci_read_config_dword(mac->pdev, PAS_MAC_CFG_PCFG, &flags); + new_flags = flags & ~(PAS_MAC_CFG_PCFG_HD | PAS_MAC_CFG_PCFG_SPD_M | + PAS_MAC_CFG_PCFG_TSR_M); + + if (!mac->phydev->duplex) + new_flags |= PAS_MAC_CFG_PCFG_HD; + + switch (mac->phydev->speed) { + case 1000: + new_flags |= PAS_MAC_CFG_PCFG_SPD_1G | + PAS_MAC_CFG_PCFG_TSR_1G; + break; + case 100: + new_flags |= PAS_MAC_CFG_PCFG_SPD_100M | + PAS_MAC_CFG_PCFG_TSR_100M; + break; + case 10: + new_flags |= PAS_MAC_CFG_PCFG_SPD_10M | + PAS_MAC_CFG_PCFG_TSR_10M; + break; + default: + printk("Unsupported speed %d\n", mac->phydev->speed); + } + + /* Print on link or speed/duplex change */ + msg = mac->link != mac->phydev->link || flags != new_flags; + + mac->duplex = mac->phydev->duplex; + mac->speed = mac->phydev->speed; + mac->link = mac->phydev->link; + + if (new_flags != flags) + pci_write_config_dword(mac->pdev, PAS_MAC_CFG_PCFG, new_flags); + + if (msg && netif_msg_link(mac)) + printk(KERN_INFO "%s: Link is up at %d Mbps, %s duplex.\n", + dev->name, mac->speed, mac->duplex ? "full" : "half"); +} + +static int pasemi_mac_phy_init(struct net_device *dev) +{ + struct pasemi_mac *mac = netdev_priv(dev); + struct device_node *dn, *phy_dn; + struct phy_device *phydev; + unsigned int phy_id; + const phandle *ph; + const unsigned int *prop; + struct resource r; + int ret; + + dn = pci_device_to_OF_node(mac->pdev); + ph = of_get_property(dn, "phy-handle", NULL); + if (!ph) + return -ENODEV; + phy_dn = of_find_node_by_phandle(*ph); + + prop = of_get_property(phy_dn, "reg", NULL); + ret = of_address_to_resource(phy_dn->parent, 0, &r); + if (ret) + goto err; + + phy_id = *prop; + snprintf(mac->phy_id, BUS_ID_SIZE, PHY_ID_FMT, (int)r.start, phy_id); + + of_node_put(phy_dn); + + mac->link = 0; + mac->speed = 0; + mac->duplex = -1; + + phydev = phy_connect(dev, mac->phy_id, &pasemi_adjust_link, 0, PHY_INTERFACE_MODE_SGMII); + + if (IS_ERR(phydev)) { + printk(KERN_ERR "%s: Could not attach to phy\n", dev->name); + return PTR_ERR(phydev); + } + + mac->phydev = phydev; + + return 0; + +err: + of_node_put(phy_dn); + return -ENODEV; +} + + static int pasemi_mac_open(struct net_device *dev) { struct pasemi_mac *mac = netdev_priv(dev); + int base_irq; unsigned int flags; int ret; @@ -558,10 +746,18 @@ static int pasemi_mac_open(struct net_device *dev) flags |= PAS_MAC_CFG_PCFG_TSR_1G | PAS_MAC_CFG_PCFG_SPD_1G; pci_write_config_dword(mac->iob_pdev, PAS_IOB_DMA_RXCH_CFG(mac->dma_rxch), - PAS_IOB_DMA_RXCH_CFG_CNTTH(30)); + PAS_IOB_DMA_RXCH_CFG_CNTTH(1)); + pci_write_config_dword(mac->iob_pdev, PAS_IOB_DMA_TXCH_CFG(mac->dma_txch), + PAS_IOB_DMA_TXCH_CFG_CNTTH(32)); + + /* Clear out any residual packet count state from firmware */ + pasemi_mac_restart_rx_intr(mac); + pasemi_mac_restart_tx_intr(mac); + + /* 0xffffff is max value, about 16ms */ pci_write_config_dword(mac->iob_pdev, PAS_IOB_DMA_COM_TIMEOUTCFG, - PAS_IOB_DMA_COM_TIMEOUTCFG_TCNT(1000000)); + PAS_IOB_DMA_COM_TIMEOUTCFG_TCNT(0xffffff)); pci_write_config_dword(mac->pdev, PAS_MAC_CFG_PCFG, flags); @@ -595,31 +791,50 @@ static int pasemi_mac_open(struct net_device *dev) pasemi_mac_replenish_rx_ring(dev); + ret = pasemi_mac_phy_init(dev); + /* Some configs don't have PHYs (XAUI etc), so don't complain about + * failed init due to -ENODEV. + */ + if (ret && ret != -ENODEV) + dev_warn(&mac->pdev->dev, "phy init failed: %d\n", ret); + netif_start_queue(dev); netif_poll_enable(dev); - ret = request_irq(mac->dma_pdev->irq + mac->dma_txch, - &pasemi_mac_tx_intr, IRQF_DISABLED, + /* Interrupts are a bit different for our DMA controller: While + * it's got one a regular PCI device header, the interrupt there + * is really the base of the range it's using. Each tx and rx + * channel has it's own interrupt source. + */ + + base_irq = virq_to_hw(mac->dma_pdev->irq); + + mac->tx_irq = irq_create_mapping(NULL, base_irq + mac->dma_txch); + mac->rx_irq = irq_create_mapping(NULL, base_irq + 20 + mac->dma_txch); + + ret = request_irq(mac->tx_irq, &pasemi_mac_tx_intr, IRQF_DISABLED, mac->tx->irq_name, dev); if (ret) { dev_err(&mac->pdev->dev, "request_irq of irq %d failed: %d\n", - mac->dma_pdev->irq + mac->dma_txch, ret); + base_irq + mac->dma_txch, ret); goto out_tx_int; } - ret = request_irq(mac->dma_pdev->irq + 20 + mac->dma_rxch, - &pasemi_mac_rx_intr, IRQF_DISABLED, + ret = request_irq(mac->rx_irq, &pasemi_mac_rx_intr, IRQF_DISABLED, mac->rx->irq_name, dev); if (ret) { dev_err(&mac->pdev->dev, "request_irq of irq %d failed: %d\n", - mac->dma_pdev->irq + 20 + mac->dma_rxch, ret); + base_irq + 20 + mac->dma_rxch, ret); goto out_rx_int; } + if (mac->phydev) + phy_start(mac->phydev); + return 0; out_rx_int: - free_irq(mac->dma_pdev->irq + mac->dma_txch, dev); + free_irq(mac->tx_irq, dev); out_tx_int: netif_poll_disable(dev); netif_stop_queue(dev); @@ -639,6 +854,11 @@ static int pasemi_mac_close(struct net_device *dev) unsigned int stat; int retries; + if (mac->phydev) { + phy_stop(mac->phydev); + phy_disconnect(mac->phydev); + } + netif_stop_queue(dev); /* Clean out any pending buffers */ @@ -660,40 +880,37 @@ static int pasemi_mac_close(struct net_device *dev) pci_read_config_dword(mac->dma_pdev, PAS_DMA_TXCHAN_TCMDSTA(mac->dma_txch), &stat); - if (stat & PAS_DMA_TXCHAN_TCMDSTA_ACT) + if (!(stat & PAS_DMA_TXCHAN_TCMDSTA_ACT)) break; cond_resched(); } - if (!(stat & PAS_DMA_TXCHAN_TCMDSTA_ACT)) { + if (stat & PAS_DMA_TXCHAN_TCMDSTA_ACT) dev_err(&mac->dma_pdev->dev, "Failed to stop tx channel\n"); - } for (retries = 0; retries < MAX_RETRIES; retries++) { pci_read_config_dword(mac->dma_pdev, PAS_DMA_RXCHAN_CCMDSTA(mac->dma_rxch), &stat); - if (stat & PAS_DMA_RXCHAN_CCMDSTA_ACT) + if (!(stat & PAS_DMA_RXCHAN_CCMDSTA_ACT)) break; cond_resched(); } - if (!(stat & PAS_DMA_RXCHAN_CCMDSTA_ACT)) { + if (stat & PAS_DMA_RXCHAN_CCMDSTA_ACT) dev_err(&mac->dma_pdev->dev, "Failed to stop rx channel\n"); - } for (retries = 0; retries < MAX_RETRIES; retries++) { pci_read_config_dword(mac->dma_pdev, PAS_DMA_RXINT_RCMDSTA(mac->dma_if), &stat); - if (stat & PAS_DMA_RXINT_RCMDSTA_ACT) + if (!(stat & PAS_DMA_RXINT_RCMDSTA_ACT)) break; cond_resched(); } - if (!(stat & PAS_DMA_RXINT_RCMDSTA_ACT)) { + if (stat & PAS_DMA_RXINT_RCMDSTA_ACT) dev_err(&mac->dma_pdev->dev, "Failed to stop rx interface\n"); - } /* Then, disable the channel. This must be done separately from * stopping, since you can't disable when active. @@ -706,8 +923,8 @@ static int pasemi_mac_close(struct net_device *dev) pci_write_config_dword(mac->dma_pdev, PAS_DMA_RXINT_RCMDSTA(mac->dma_if), 0); - free_irq(mac->dma_pdev->irq + mac->dma_txch, dev); - free_irq(mac->dma_pdev->irq + 20 + mac->dma_rxch, dev); + free_irq(mac->tx_irq, dev); + free_irq(mac->rx_irq, dev); /* Free resources */ pasemi_mac_free_rx_resources(dev); @@ -802,6 +1019,7 @@ static struct net_device_stats *pasemi_mac_get_stats(struct net_device *dev) return &mac->stats; } + static void pasemi_mac_set_rx_mode(struct net_device *dev) { struct pasemi_mac *mac = netdev_priv(dev); @@ -826,18 +1044,17 @@ static int pasemi_mac_poll(struct net_device *dev, int *budget) pkts = pasemi_mac_clean_rx(mac, limit); + dev->quota -= pkts; + *budget -= pkts; + if (pkts < limit) { /* all done, no more packets present */ netif_rx_complete(dev); - /* re-enable receive interrupts */ - pci_write_config_dword(mac->iob_pdev, PAS_IOB_DMA_COM_TIMEOUTCFG, - PAS_IOB_DMA_COM_TIMEOUTCFG_TCNT(1000000)); + pasemi_mac_restart_rx_intr(mac); return 0; } else { /* used up our quantum, so reschedule */ - dev->quota -= pkts; - *budget -= pkts; return 1; } } @@ -937,6 +1154,11 @@ pasemi_mac_probe(struct pci_dev *pdev, const struct pci_device_id *ent) mac->rx_status = &dma_status->rx_sta[mac->dma_rxch]; mac->tx_status = &dma_status->tx_sta[mac->dma_txch]; + mac->msg_enable = netif_msg_init(debug, DEFAULT_MSG_ENABLE); + + /* Enable most messages by default */ + mac->msg_enable = (NETIF_MSG_IFUP << 1 ) - 1; + err = register_netdev(dev); if (err) { @@ -1011,9 +1233,5 @@ int pasemi_mac_init_module(void) return pci_register_driver(&pasemi_mac_driver); } -MODULE_LICENSE("GPL"); -MODULE_AUTHOR ("Olof Johansson <olof@lixom.net>"); -MODULE_DESCRIPTION("PA Semi PWRficient Ethernet driver"); - module_init(pasemi_mac_init_module); module_exit(pasemi_mac_cleanup_module); |