Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

Pull networking updates from David Miller:

 1) Significantly shrink the core networking routing structures. Result
    of http://vger.kernel.org/~davem/seoul2017_netdev_keynote.pdf

 2) Add netdevsim driver for testing various offloads, from Jakub
    Kicinski.

 3) Support cross-chip FDB operations in DSA, from Vivien Didelot.

 4) Add a 2nd listener hash table for TCP, similar to what was done for
    UDP. From Martin KaFai Lau.

 5) Add eBPF based queue selection to tun, from Jason Wang.

 6) Lockless qdisc support, from John Fastabend.

 7) SCTP stream interleave support, from Xin Long.

 8) Smoother TCP receive autotuning, from Eric Dumazet.

 9) Lots of erspan tunneling enhancements, from William Tu.

10) Add true function call support to BPF, from Alexei Starovoitov.

11) Add explicit support for GRO HW offloading, from Michael Chan.

12) Support extack generation in more netlink subsystems. From Alexander
    Aring, Quentin Monnet, and Jakub Kicinski.

13) Add 1000BaseX, flow control, and EEE support to mvneta driver. From
    Russell King.

14) Add flow table abstraction to netfilter, from Pablo Neira Ayuso.

15) Many improvements and simplifications to the NFP driver bpf JIT,
    from Jakub Kicinski.

16) Support for ipv6 non-equal cost multipath routing, from Ido
    Schimmel.

17) Add resource abstration to devlink, from Arkadi Sharshevsky.

18) Packet scheduler classifier shared filter block support, from Jiri
    Pirko.

19) Avoid locking in act_csum, from Davide Caratti.

20) devinet_ioctl() simplifications from Al viro.

21) More TCP bpf improvements from Lawrence Brakmo.

22) Add support for onlink ipv6 route flag, similar to ipv4, from David
    Ahern.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1925 commits)
  tls: Add support for encryption using async offload accelerator
  ip6mr: fix stale iterator
  net/sched: kconfig: Remove blank help texts
  openvswitch: meter: Use 64-bit arithmetic instead of 32-bit
  tcp_nv: fix potential integer overflow in tcpnv_acked
  r8169: fix RTL8168EP take too long to complete driver initialization.
  qmi_wwan: Add support for Quectel EP06
  rtnetlink: enable IFLA_IF_NETNSID for RTM_NEWLINK
  ipmr: Fix ptrdiff_t print formatting
  ibmvnic: Wait for device response when changing MAC
  qlcnic: fix deadlock bug
  tcp: release sk_frag.page in tcp_disconnect
  ipv4: Get the address of interface correctly.
  net_sched: gen_estimator: fix lockdep splat
  net: macb: Handle HRESP error
  net/mlx5e: IPoIB, Fix copy-paste bug in flow steering refactoring
  ipv6: addrconf: break critical section in addrconf_verify_rtnl()
  ipv6: change route cache aging logic
  i40e/i40evf: Update DESC_NEEDED value to reflect larger value
  bnxt_en: cleanup DIM work on device shutdown
  ...

7 files changed, 76 insertions, 86 deletions

diff --git a/drivers/net/ethernet/ibm/emac/core.c b/drivers/net/ethernet/ibm/emac/core.c
index 241db3199b88..354c0982847b 100644
--- a/drivers/net/ethernet/ibm/emac/core.c
+++ b/drivers/net/ethernet/ibm/emac/core.c
@@ -199,18 +199,18 @@ static void __emac_set_multicast_list(struct emac_instance *dev);
 
 static inline int emac_phy_supports_gige(int phy_mode)
 {
-	return  phy_mode == PHY_MODE_GMII ||
-		phy_mode == PHY_MODE_RGMII ||
-		phy_mode == PHY_MODE_SGMII ||
-		phy_mode == PHY_MODE_TBI ||
-		phy_mode == PHY_MODE_RTBI;
+	return  phy_interface_mode_is_rgmii(phy_mode) ||
+		phy_mode == PHY_INTERFACE_MODE_GMII ||
+		phy_mode == PHY_INTERFACE_MODE_SGMII ||
+		phy_mode == PHY_INTERFACE_MODE_TBI ||
+		phy_mode == PHY_INTERFACE_MODE_RTBI;
 }
 
 static inline int emac_phy_gpcs(int phy_mode)
 {
-	return  phy_mode == PHY_MODE_SGMII ||
-		phy_mode == PHY_MODE_TBI ||
-		phy_mode == PHY_MODE_RTBI;
+	return  phy_mode == PHY_INTERFACE_MODE_SGMII ||
+		phy_mode == PHY_INTERFACE_MODE_TBI ||
+		phy_mode == PHY_INTERFACE_MODE_RTBI;
 }
 
 static inline void emac_tx_enable(struct emac_instance *dev)
@@ -2871,7 +2871,7 @@ static int emac_init_config(struct emac_instance *dev)
 	/* PHY mode needs some decoding */
 	dev->phy_mode = of_get_phy_mode(np);
 	if (dev->phy_mode < 0)
-		dev->phy_mode = PHY_MODE_NA;
+		dev->phy_mode = PHY_INTERFACE_MODE_NA;
 
 	/* Check EMAC version */
 	if (of_device_is_compatible(np, "ibm,emac4sync")) {
@@ -3174,7 +3174,7 @@ static int emac_probe(struct platform_device *ofdev)
 	printk(KERN_INFO "%s: EMAC-%d %pOF, MAC %pM\n",
 	       ndev->name, dev->cell_index, np, ndev->dev_addr);
 
-	if (dev->phy_mode == PHY_MODE_SGMII)
+	if (dev->phy_mode == PHY_INTERFACE_MODE_SGMII)
 		printk(KERN_NOTICE "%s: in SGMII mode\n", ndev->name);
 
 	if (dev->phy.address >= 0)
diff --git a/drivers/net/ethernet/ibm/emac/emac.h b/drivers/net/ethernet/ibm/emac/emac.h
index c26d2631ca30..e2f80cca9bed 100644
--- a/drivers/net/ethernet/ibm/emac/emac.h
+++ b/drivers/net/ethernet/ibm/emac/emac.h
@@ -104,19 +104,6 @@ struct emac_regs {
 	} u1;
 };
 
-/*
- * PHY mode settings (EMAC <-> ZMII/RGMII bridge <-> PHY)
- */
-#define PHY_MODE_NA	PHY_INTERFACE_MODE_NA
-#define PHY_MODE_MII	PHY_INTERFACE_MODE_MII
-#define PHY_MODE_RMII	PHY_INTERFACE_MODE_RMII
-#define PHY_MODE_SMII	PHY_INTERFACE_MODE_SMII
-#define PHY_MODE_RGMII	PHY_INTERFACE_MODE_RGMII
-#define PHY_MODE_TBI	PHY_INTERFACE_MODE_TBI
-#define PHY_MODE_GMII	PHY_INTERFACE_MODE_GMII
-#define PHY_MODE_RTBI	PHY_INTERFACE_MODE_RTBI
-#define PHY_MODE_SGMII	PHY_INTERFACE_MODE_SGMII
-
 /* EMACx_MR0 */
 #define EMAC_MR0_RXI			0x80000000
 #define EMAC_MR0_TXI			0x40000000
diff --git a/drivers/net/ethernet/ibm/emac/phy.c b/drivers/net/ethernet/ibm/emac/phy.c
index 35865d05fccd..aa070c063e48 100644
--- a/drivers/net/ethernet/ibm/emac/phy.c
+++ b/drivers/net/ethernet/ibm/emac/phy.c
@@ -96,7 +96,7 @@ int emac_mii_reset_gpcs(struct mii_phy *phy)
 	if ((val & BMCR_ISOLATE) && limit > 0)
 		gpcs_phy_write(phy, MII_BMCR, val & ~BMCR_ISOLATE);
 
-	if (limit > 0 && phy->mode == PHY_MODE_SGMII) {
+	if (limit > 0 && phy->mode == PHY_INTERFACE_MODE_SGMII) {
 		/* Configure GPCS interface to recommended setting for SGMII */
 		gpcs_phy_write(phy, 0x04, 0x8120); /* AsymPause, FDX */
 		gpcs_phy_write(phy, 0x07, 0x2801); /* msg_pg, toggle */
@@ -313,16 +313,16 @@ static int cis8201_init(struct mii_phy *phy)
 	epcr &= ~EPCR_MODE_MASK;
 
 	switch (phy->mode) {
-	case PHY_MODE_TBI:
+	case PHY_INTERFACE_MODE_TBI:
 		epcr |= EPCR_TBI_MODE;
 		break;
-	case PHY_MODE_RTBI:
+	case PHY_INTERFACE_MODE_RTBI:
 		epcr |= EPCR_RTBI_MODE;
 		break;
-	case PHY_MODE_GMII:
+	case PHY_INTERFACE_MODE_GMII:
 		epcr |= EPCR_GMII_MODE;
 		break;
-	case PHY_MODE_RGMII:
+	case PHY_INTERFACE_MODE_RGMII:
 	default:
 		epcr |= EPCR_RGMII_MODE;
 	}
diff --git a/drivers/net/ethernet/ibm/emac/rgmii.c b/drivers/net/ethernet/ibm/emac/rgmii.c
index c4a1ac38bba8..00f5999de3cf 100644
--- a/drivers/net/ethernet/ibm/emac/rgmii.c
+++ b/drivers/net/ethernet/ibm/emac/rgmii.c
@@ -52,43 +52,28 @@
 /* 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_MII ||
-		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_MII:
-		return "MII";
-	case PHY_MODE_RTBI:
-		return "RTBI";
-	default:
-		BUG();
-	}
+	return  phy_interface_mode_is_rgmii(phy_mode) ||
+		phy_mode == PHY_INTERFACE_MODE_GMII ||
+		phy_mode == PHY_INTERFACE_MODE_MII ||
+		phy_mode == PHY_INTERFACE_MODE_TBI ||
+		phy_mode == PHY_INTERFACE_MODE_RTBI;
 }
 
 static inline u32 rgmii_mode_mask(int mode, int input)
 {
 	switch (mode) {
-	case PHY_MODE_RGMII:
+	case PHY_INTERFACE_MODE_RGMII:
+	case PHY_INTERFACE_MODE_RGMII_ID:
+	case PHY_INTERFACE_MODE_RGMII_RXID:
+	case PHY_INTERFACE_MODE_RGMII_TXID:
 		return RGMII_FER_RGMII(input);
-	case PHY_MODE_TBI:
+	case PHY_INTERFACE_MODE_TBI:
 		return RGMII_FER_TBI(input);
-	case PHY_MODE_GMII:
+	case PHY_INTERFACE_MODE_GMII:
 		return RGMII_FER_GMII(input);
-	case PHY_MODE_MII:
+	case PHY_INTERFACE_MODE_MII:
 		return RGMII_FER_MII(input);
-	case PHY_MODE_RTBI:
+	case PHY_INTERFACE_MODE_RTBI:
 		return RGMII_FER_RTBI(input);
 	default:
 		BUG();
@@ -115,7 +100,7 @@ int rgmii_attach(struct platform_device *ofdev, int input, int mode)
 	out_be32(&p->fer, in_be32(&p->fer) | rgmii_mode_mask(mode, input));
 
 	printk(KERN_NOTICE "%pOF: input %d in %s mode\n",
-	       ofdev->dev.of_node, input, rgmii_mode_name(mode));
+	       ofdev->dev.of_node, input, phy_modes(mode));
 
 	++dev->users;
 
diff --git a/drivers/net/ethernet/ibm/emac/zmii.c b/drivers/net/ethernet/ibm/emac/zmii.c
index 89c42d362292..fdcc734541fe 100644
--- a/drivers/net/ethernet/ibm/emac/zmii.c
+++ b/drivers/net/ethernet/ibm/emac/zmii.c
@@ -49,20 +49,20 @@
  */
 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;
+	return  mode == PHY_INTERFACE_MODE_MII ||
+		mode == PHY_INTERFACE_MODE_RMII ||
+		mode == PHY_INTERFACE_MODE_SMII ||
+		mode == PHY_INTERFACE_MODE_NA;
 }
 
 static inline const char *zmii_mode_name(int mode)
 {
 	switch (mode) {
-	case PHY_MODE_MII:
+	case PHY_INTERFACE_MODE_MII:
 		return "MII";
-	case PHY_MODE_RMII:
+	case PHY_INTERFACE_MODE_RMII:
 		return "RMII";
-	case PHY_MODE_SMII:
+	case PHY_INTERFACE_MODE_SMII:
 		return "SMII";
 	default:
 		BUG();
@@ -72,11 +72,11 @@ static inline const char *zmii_mode_name(int mode)
 static inline u32 zmii_mode_mask(int mode, int input)
 {
 	switch (mode) {
-	case PHY_MODE_MII:
+	case PHY_INTERFACE_MODE_MII:
 		return ZMII_FER_MII(input);
-	case PHY_MODE_RMII:
+	case PHY_INTERFACE_MODE_RMII:
 		return ZMII_FER_RMII(input);
-	case PHY_MODE_SMII:
+	case PHY_INTERFACE_MODE_SMII:
 		return ZMII_FER_SMII(input);
 	default:
 		return 0;
@@ -106,27 +106,27 @@ int zmii_attach(struct platform_device *ofdev, int input, int *mode)
 	 * Please, always specify PHY mode in your board port to avoid
 	 * any surprises.
 	 */
-	if (dev->mode == PHY_MODE_NA) {
-		if (*mode == PHY_MODE_NA) {
+	if (dev->mode == PHY_INTERFACE_MODE_NA) {
+		if (*mode == PHY_INTERFACE_MODE_NA) {
 			u32 r = dev->fer_save;
 
 			ZMII_DBG(dev, "autodetecting mode, FER = 0x%08x" NL, r);
 
 			if (r & (ZMII_FER_MII(0) | ZMII_FER_MII(1)))
-				dev->mode = PHY_MODE_MII;
+				dev->mode = PHY_INTERFACE_MODE_MII;
 			else if (r & (ZMII_FER_RMII(0) | ZMII_FER_RMII(1)))
-				dev->mode = PHY_MODE_RMII;
+				dev->mode = PHY_INTERFACE_MODE_RMII;
 			else
-				dev->mode = PHY_MODE_SMII;
-		} else
+				dev->mode = PHY_INTERFACE_MODE_SMII;
+		} else {
 			dev->mode = *mode;
-
+		}
 		printk(KERN_NOTICE "%pOF: bridge in %s mode\n",
 		       ofdev->dev.of_node,
 		       zmii_mode_name(dev->mode));
 	} else {
 		/* All inputs must use the same mode */
-		if (*mode != PHY_MODE_NA && *mode != dev->mode) {
+		if (*mode != PHY_INTERFACE_MODE_NA && *mode != dev->mode) {
 			printk(KERN_ERR
 			       "%pOF: invalid mode %d specified for input %d\n",
 			       ofdev->dev.of_node, *mode, input);
@@ -246,7 +246,7 @@ static int zmii_probe(struct platform_device *ofdev)
 
 	mutex_init(&dev->lock);
 	dev->ofdev = ofdev;
-	dev->mode = PHY_MODE_NA;
+	dev->mode = PHY_INTERFACE_MODE_NA;
 
 	rc = -ENXIO;
 	if (of_address_to_resource(np, 0, &regs)) {
diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index b65f5f3ac034..8c3058d5d191 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -59,6 +59,7 @@
 #include <linux/mm.h>
 #include <linux/ethtool.h>
 #include <linux/proc_fs.h>
+#include <linux/if_arp.h>
 #include <linux/in.h>
 #include <linux/ip.h>
 #include <linux/ipv6.h>
@@ -1177,6 +1178,9 @@ static int build_hdr_data(u8 hdr_field, struct sk_buff *skb,
 			hdr_len[2] = tcp_hdrlen(skb);
 		else if (ipv6_hdr(skb)->nexthdr == IPPROTO_UDP)
 			hdr_len[2] = sizeof(struct udphdr);
+	} else if (skb->protocol == htons(ETH_P_ARP)) {
+		hdr_len[1] = arp_hdr_len(skb->dev);
+		hdr_len[2] = 0;
 	}
 
 	memset(hdr_data, 0, 120);
@@ -1412,7 +1416,8 @@ static int ibmvnic_xmit(struct sk_buff *skb, struct net_device *netdev)
 	/* determine if l2/3/4 headers are sent to firmware */
 	if ((*hdrs >> 7) & 1 &&
 	    (skb->protocol == htons(ETH_P_IP) ||
-	     skb->protocol == htons(ETH_P_IPV6))) {
+	     skb->protocol == htons(ETH_P_IPV6) ||
+	     skb->protocol == htons(ETH_P_ARP))) {
 		build_hdr_descs_arr(tx_buff, &num_entries, *hdrs);
 		tx_crq.v1.n_crq_elem = num_entries;
 		tx_buff->indir_arr[0] = tx_crq;
@@ -1543,15 +1548,19 @@ static int __ibmvnic_set_mac(struct net_device *netdev, struct sockaddr *p)
 	crq.change_mac_addr.first = IBMVNIC_CRQ_CMD;
 	crq.change_mac_addr.cmd = CHANGE_MAC_ADDR;
 	ether_addr_copy(&crq.change_mac_addr.mac_addr[0], addr->sa_data);
+
+	init_completion(&adapter->fw_done);
 	ibmvnic_send_crq(adapter, &crq);
+	wait_for_completion(&adapter->fw_done);
 	/* netdev->dev_addr is changed in handle_change_mac_rsp function */
-	return 0;
+	return adapter->fw_done_rc ? -EIO : 0;
 }
 
 static int ibmvnic_set_mac(struct net_device *netdev, void *p)
 {
 	struct ibmvnic_adapter *adapter = netdev_priv(netdev);
 	struct sockaddr *addr = p;
+	int rc;
 
 	if (adapter->state == VNIC_PROBED) {
 		memcpy(&adapter->desired.mac, addr, sizeof(struct sockaddr));
@@ -1559,9 +1568,9 @@ static int ibmvnic_set_mac(struct net_device *netdev, void *p)
 		return 0;
 	}
 
-	__ibmvnic_set_mac(netdev, addr);
+	rc = __ibmvnic_set_mac(netdev, addr);
 
-	return 0;
+	return rc;
 }
 
 /**
@@ -2484,6 +2493,12 @@ static irqreturn_t ibmvnic_interrupt_rx(int irq, void *instance)
 	struct ibmvnic_sub_crq_queue *scrq = instance;
 	struct ibmvnic_adapter *adapter = scrq->adapter;
 
+	/* When booting a kdump kernel we can hit pending interrupts
+	 * prior to completing driver initialization.
+	 */
+	if (unlikely(adapter->state != VNIC_OPEN))
+		return IRQ_NONE;
+
 	adapter->rx_stats_buffers[scrq->scrq_num].interrupts++;
 
 	if (napi_schedule_prep(&adapter->napi[scrq->scrq_num])) {
@@ -3558,8 +3573,8 @@ static void handle_error_indication(union ibmvnic_crq *crq,
 		ibmvnic_reset(adapter, VNIC_RESET_NON_FATAL);
 }
 
-static void handle_change_mac_rsp(union ibmvnic_crq *crq,
-				  struct ibmvnic_adapter *adapter)
+static int handle_change_mac_rsp(union ibmvnic_crq *crq,
+				 struct ibmvnic_adapter *adapter)
 {
 	struct net_device *netdev = adapter->netdev;
 	struct device *dev = &adapter->vdev->dev;
@@ -3568,10 +3583,13 @@ static void handle_change_mac_rsp(union ibmvnic_crq *crq,
 	rc = crq->change_mac_addr_rsp.rc.code;
 	if (rc) {
 		dev_err(dev, "Error %ld in CHANGE_MAC_ADDR_RSP\n", rc);
-		return;
+		goto out;
 	}
 	memcpy(netdev->dev_addr, &crq->change_mac_addr_rsp.mac_addr[0],
 	       ETH_ALEN);
+out:
+	complete(&adapter->fw_done);
+	return rc;
 }
 
 static void handle_request_cap_rsp(union ibmvnic_crq *crq,
@@ -4031,7 +4049,7 @@ static void ibmvnic_handle_crq(union ibmvnic_crq *crq,
 		break;
 	case CHANGE_MAC_ADDR_RSP:
 		netdev_dbg(netdev, "Got MAC address change Response\n");
-		handle_change_mac_rsp(crq, adapter);
+		adapter->fw_done_rc = handle_change_mac_rsp(crq, adapter);
 		break;
 	case ERROR_INDICATION:
 		netdev_dbg(netdev, "Got Error Indication\n");
@@ -4335,7 +4353,7 @@ static int ibmvnic_probe(struct vio_dev *dev, const struct vio_device_id *id)
 	}
 
 	netdev = alloc_etherdev_mq(sizeof(struct ibmvnic_adapter),
-				   IBMVNIC_MAX_TX_QUEUES);
+				   IBMVNIC_MAX_QUEUES);
 	if (!netdev)
 		return -ENOMEM;
 
diff --git a/drivers/net/ethernet/ibm/ibmvnic.h b/drivers/net/ethernet/ibm/ibmvnic.h
index 3aec42118db2..fe21a6e2ddae 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.h
+++ b/drivers/net/ethernet/ibm/ibmvnic.h
@@ -39,7 +39,7 @@
 #define IBMVNIC_RX_WEIGHT		16
 /* when changing this, update IBMVNIC_IO_ENTITLEMENT_DEFAULT */
 #define IBMVNIC_BUFFS_PER_POOL	100
-#define IBMVNIC_MAX_TX_QUEUES	5
+#define IBMVNIC_MAX_QUEUES	10
 
 #define IBMVNIC_TSO_BUF_SZ	65536
 #define IBMVNIC_TSO_BUFS	64