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

Pull networking updates and fixes from David Miller:

1) Reinstate the no-ref optimization for input route lookups in ipv4 to
   fix some routing cache removal perf regressions.

2) Make TCP socket pre-demux work on ipv6 side too, from Eric Dumazet.

3) Get RX hash value from correct place in be2net driver, from
   Sarveshwar Bandi.

4) Validation of FIB cached routes missing critical check, from Eric
   Dumazet.

5) EEH support in mlx4 driver, from Kleber Sacilotto de Souza.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (23 commits)
  ipv6: Early TCP socket demux
  ipv4: Fix input route performance regression.
  pch_gbe: vlan skb len fix
  pch_gbe: add extra clean tx
  pch_gbe: fix transmit watchdog timeout
  ixgbe: fix panic while dumping packets on Tx hang with IOMMU
  be2net: Fix to parse RSS hash from Receive completions correctly.
  net/mlx4_en: Limit the RFS filter IDs to be < RPS_NO_FILTER
  hyperv: Add error handling to rndis_filter_device_add()
  hyperv: Add a check for ring_size value
  ipv4: rt_cache_valid must check expired routes
  net/pch_gpe: Cannot disable ethernet autonegation
  qeth: repair crash in qeth_l3_vlan_rx_kill_vid()
  netiucv: cleanup attribute usage
  net: wiznet add missing HAS_IOMEM dependency
  be2net: Missing byteswap in be_get_fw_log_level causes oops on PowerPC
  mlx4: Add support for EEH error recovery
  cdc-ncm: tag Ericsson WWAN devices (eg F5521gw) with FLAG_WWAN
  wanmain: comparing array with NULL
  caif: fix NULL pointer check
  ...

drivers/net/caif/caif_serial.c

@@ -325,6 +325,9 @@ static int ldisc_open(struct tty_struct *tty)
 
 	sprintf(name, "cf%s", tty->name);
 	dev = alloc_netdev(sizeof(*ser), name, caifdev_setup);
+	if (!dev)
+		return -ENOMEM;
+
 	ser = netdev_priv(dev);
 	ser->tty = tty_kref_get(tty);
 	ser->dev = dev;

drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h

@@ -1603,6 +1603,10 @@
  * of counts that the SM entered the EEE LPI state. Clock 25MHz. Read only
  * register. Reset on hard reset. */
 #define MISC_REG_CPMU_LP_SM_ENT_CNT_P0				 0xa8b8
+/* [RW 16] EEE LPI Entry Events Counter. A statistic counter with the number
+ * of counts that the SM entered the EEE LPI state. Clock 25MHz. Read only
+ * register. Reset on hard reset. */
+#define MISC_REG_CPMU_LP_SM_ENT_CNT_P1				 0xa8bc
 /* [RW 32] The following driver registers(1...16) represent 16 drivers and
    32 clients. Each client can be controlled by one driver only. One in each
    bit represent that this driver control the appropriate client (Ex: bit 5

drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c

@@ -785,9 +785,11 @@ static int bnx2x_hw_stats_update(struct bnx2x *bp)
 
 	pstats->host_port_stats_counter++;
 
-	if (CHIP_IS_E3(bp))
-		estats->eee_tx_lpi += REG_RD(bp,
-					     MISC_REG_CPMU_LP_SM_ENT_CNT_P0);
+	if (CHIP_IS_E3(bp)) {
+		u32 lpi_reg = BP_PORT(bp) ? MISC_REG_CPMU_LP_SM_ENT_CNT_P1
+					  : MISC_REG_CPMU_LP_SM_ENT_CNT_P0;
+		estats->eee_tx_lpi += REG_RD(bp, lpi_reg);
+	}
 
 	if (!BP_NOMCP(bp)) {
 		u32 nig_timer_max =

drivers/net/ethernet/emulex/benet/be_ethtool.c

@@ -910,8 +910,9 @@ static void be_set_fw_log_level(struct be_adapter *adapter, u32 level)
 	if (!status) {
 		cfgs = (struct be_fat_conf_params *)(extfat_cmd.va +
 					sizeof(struct be_cmd_resp_hdr));
-		for (i = 0; i < cfgs->num_modules; i++) {
-			for (j = 0; j < cfgs->module[i].num_modes; j++) {
+		for (i = 0; i < le32_to_cpu(cfgs->num_modules); i++) {
+			u32 num_modes = le32_to_cpu(cfgs->module[i].num_modes);
+			for (j = 0; j < num_modes; j++) {
 				if (cfgs->module[i].trace_lvl[j].mode ==
 								MODE_UART)
 					cfgs->module[i].trace_lvl[j].dbg_lvl =

drivers/net/ethernet/emulex/benet/be_main.c

@@ -1397,7 +1397,7 @@ static void be_parse_rx_compl_v1(struct be_eth_rx_compl *compl,
 	rxcp->pkt_type =
 		AMAP_GET_BITS(struct amap_eth_rx_compl_v1, cast_enc, compl);
 	rxcp->rss_hash =
-		AMAP_GET_BITS(struct amap_eth_rx_compl_v1, rsshash, rxcp);
+		AMAP_GET_BITS(struct amap_eth_rx_compl_v1, rsshash, compl);
 	if (rxcp->vlanf) {
 		rxcp->vtm = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vtm,
 					  compl);
@@ -1429,7 +1429,7 @@ static void be_parse_rx_compl_v0(struct be_eth_rx_compl *compl,
 	rxcp->pkt_type =
 		AMAP_GET_BITS(struct amap_eth_rx_compl_v0, cast_enc, compl);
 	rxcp->rss_hash =
-		AMAP_GET_BITS(struct amap_eth_rx_compl_v0, rsshash, rxcp);
+		AMAP_GET_BITS(struct amap_eth_rx_compl_v0, rsshash, compl);
 	if (rxcp->vlanf) {
 		rxcp->vtm = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vtm,
 					  compl);
@@ -3579,7 +3579,7 @@ u32 be_get_fw_log_level(struct be_adapter *adapter)
 	if (!status) {
 		cfgs = (struct be_fat_conf_params *)(extfat_cmd.va +
 						sizeof(struct be_cmd_resp_hdr));
-		for (j = 0; j < cfgs->module[0].num_modes; j++) {
+		for (j = 0; j < le32_to_cpu(cfgs->module[0].num_modes); j++) {
 			if (cfgs->module[0].trace_lvl[j].mode == MODE_UART)
 				level = cfgs->module[0].trace_lvl[j].dbg_lvl;
 		}

drivers/net/ethernet/intel/ixgbe/ixgbe_main.c

@@ -396,11 +396,10 @@ static void ixgbe_dump(struct ixgbe_adapter *adapter)
 				pr_cont("\n");
 
 			if (netif_msg_pktdata(adapter) &&
-			    dma_unmap_len(tx_buffer, len) != 0)
+			    tx_buffer->skb)
 				print_hex_dump(KERN_INFO, "",
 					DUMP_PREFIX_ADDRESS, 16, 1,
-					phys_to_virt(dma_unmap_addr(tx_buffer,
-								    dma)),
+					tx_buffer->skb->data,
 					dma_unmap_len(tx_buffer, len),
 					true);
 		}
@@ -474,10 +473,12 @@ static void ixgbe_dump(struct ixgbe_adapter *adapter)
 					(u64)rx_buffer_info->dma,
 					rx_buffer_info->skb);
 
-				if (netif_msg_pktdata(adapter)) {
+				if (netif_msg_pktdata(adapter) &&
+				    rx_buffer_info->dma) {
 					print_hex_dump(KERN_INFO, "",
 					   DUMP_PREFIX_ADDRESS, 16, 1,
-					   phys_to_virt(rx_buffer_info->dma),
+					   page_address(rx_buffer_info->page) +
+						    rx_buffer_info->page_offset,
 					   ixgbe_rx_bufsz(rx_ring), true);
 				}
 			}

drivers/net/ethernet/mellanox/mlx4/catas.c

@@ -69,16 +69,21 @@ static void poll_catas(unsigned long dev_ptr)
 	struct mlx4_priv *priv = mlx4_priv(dev);
 
 	if (readl(priv->catas_err.map)) {
-		dump_err_buf(dev);
-
-		mlx4_dispatch_event(dev, MLX4_DEV_EVENT_CATASTROPHIC_ERROR, 0);
+		/* If the device is off-line, we cannot try to recover it */
+		if (pci_channel_offline(dev->pdev))
+			mod_timer(&priv->catas_err.timer,
+				  round_jiffies(jiffies + MLX4_CATAS_POLL_INTERVAL));
+		else {
+			dump_err_buf(dev);
+			mlx4_dispatch_event(dev, MLX4_DEV_EVENT_CATASTROPHIC_ERROR, 0);
 
-		if (internal_err_reset) {
-			spin_lock(&catas_lock);
-			list_add(&priv->catas_err.list, &catas_list);
-			spin_unlock(&catas_lock);
+			if (internal_err_reset) {
+				spin_lock(&catas_lock);
+				list_add(&priv->catas_err.list, &catas_list);
+				spin_unlock(&catas_lock);
 
-			queue_work(mlx4_wq, &catas_work);
+				queue_work(mlx4_wq, &catas_work);
+			}
 		}
 	} else
 		mod_timer(&priv->catas_err.timer,
@@ -100,6 +105,10 @@ static void catas_reset(struct work_struct *work)
 	list_for_each_entry_safe(priv, tmppriv, &tlist, catas_err.list) {
 		struct pci_dev *pdev = priv->dev.pdev;
 
+		/* If the device is off-line, we cannot reset it */
+		if (pci_channel_offline(pdev))
+			continue;
+
 		ret = mlx4_restart_one(priv->dev.pdev);
 		/* 'priv' now is not valid */
 		if (ret)

drivers/net/ethernet/mellanox/mlx4/cmd.c

@@ -296,7 +296,12 @@ int mlx4_comm_cmd(struct mlx4_dev *dev, u8 cmd, u16 param,
 
 static int cmd_pending(struct mlx4_dev *dev)
 {
-	u32 status = readl(mlx4_priv(dev)->cmd.hcr + HCR_STATUS_OFFSET);
+	u32 status;
+
+	if (pci_channel_offline(dev->pdev))
+		return -EIO;
+
+	status = readl(mlx4_priv(dev)->cmd.hcr + HCR_STATUS_OFFSET);
 
 	return (status & swab32(1 << HCR_GO_BIT)) ||
 		(mlx4_priv(dev)->cmd.toggle ==
@@ -314,11 +319,29 @@ static int mlx4_cmd_post(struct mlx4_dev *dev, u64 in_param, u64 out_param,
 
 	mutex_lock(&cmd->hcr_mutex);
 
+	if (pci_channel_offline(dev->pdev)) {
+		/*
+		 * Device is going through error recovery
+		 * and cannot accept commands.
+		 */
+		ret = -EIO;
+		goto out;
+	}
+
 	end = jiffies;
 	if (event)
 		end += msecs_to_jiffies(GO_BIT_TIMEOUT_MSECS);
 
 	while (cmd_pending(dev)) {
+		if (pci_channel_offline(dev->pdev)) {
+			/*
+			 * Device is going through error recovery
+			 * and cannot accept commands.
+			 */
+			ret = -EIO;
+			goto out;
+		}
+
 		if (time_after_eq(jiffies, end)) {
 			mlx4_err(dev, "%s:cmd_pending failed\n", __func__);
 			goto out;
@@ -431,14 +454,33 @@ static int mlx4_cmd_poll(struct mlx4_dev *dev, u64 in_param, u64 *out_param,
 
 	down(&priv->cmd.poll_sem);
 
+	if (pci_channel_offline(dev->pdev)) {
+		/*
+		 * Device is going through error recovery
+		 * and cannot accept commands.
+		 */
+		err = -EIO;
+		goto out;
+	}
+
 	err = mlx4_cmd_post(dev, in_param, out_param ? *out_param : 0,
 			    in_modifier, op_modifier, op, CMD_POLL_TOKEN, 0);
 	if (err)
 		goto out;
 
 	end = msecs_to_jiffies(timeout) + jiffies;
-	while (cmd_pending(dev) && time_before(jiffies, end))
+	while (cmd_pending(dev) && time_before(jiffies, end)) {
+		if (pci_channel_offline(dev->pdev)) {
+			/*
+			 * Device is going through error recovery
+			 * and cannot accept commands.
+			 */
+			err = -EIO;
+			goto out;
+		}
+
 		cond_resched();
+	}
 
 	if (cmd_pending(dev)) {
 		err = -ETIMEDOUT;
@@ -532,6 +574,9 @@ int __mlx4_cmd(struct mlx4_dev *dev, u64 in_param, u64 *out_param,
 	       int out_is_imm, u32 in_modifier, u8 op_modifier,
 	       u16 op, unsigned long timeout, int native)
 {
+	if (pci_channel_offline(dev->pdev))
+		return -EIO;
+
 	if (!mlx4_is_mfunc(dev) || (native && mlx4_is_master(dev))) {
 		if (mlx4_priv(dev)->cmd.use_events)
 			return mlx4_cmd_wait(dev, in_param, out_param,

drivers/net/ethernet/mellanox/mlx4/en_netdev.c

@@ -201,7 +201,7 @@ mlx4_en_filter_alloc(struct mlx4_en_priv *priv, int rxq_index, __be32 src_ip,
 
 	filter->flow_id = flow_id;
 
-	filter->id = priv->last_filter_id++;
+	filter->id = priv->last_filter_id++ % RPS_NO_FILTER;
 
 	list_add_tail(&filter->next, &priv->filters);
 	hlist_add_head(&filter->filter_chain,

drivers/net/ethernet/mellanox/mlx4/main.c

@@ -1817,6 +1817,9 @@ static int mlx4_get_ownership(struct mlx4_dev *dev)
 	void __iomem *owner;
 	u32 ret;
 
+	if (pci_channel_offline(dev->pdev))
+		return -EIO;
+
 	owner = ioremap(pci_resource_start(dev->pdev, 0) + MLX4_OWNER_BASE,
 			MLX4_OWNER_SIZE);
 	if (!owner) {
@@ -1833,6 +1836,9 @@ static void mlx4_free_ownership(struct mlx4_dev *dev)
 {
 	void __iomem *owner;
 
+	if (pci_channel_offline(dev->pdev))
+		return;
+
 	owner = ioremap(pci_resource_start(dev->pdev, 0) + MLX4_OWNER_BASE,
 			MLX4_OWNER_SIZE);
 	if (!owner) {
@@ -2279,11 +2285,33 @@ static DEFINE_PCI_DEVICE_TABLE(mlx4_pci_table) = {
 
 MODULE_DEVICE_TABLE(pci, mlx4_pci_table);
 
+static pci_ers_result_t mlx4_pci_err_detected(struct pci_dev *pdev,
+					      pci_channel_state_t state)
+{
+	mlx4_remove_one(pdev);
+
+	return state == pci_channel_io_perm_failure ?
+		PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_NEED_RESET;
+}
+
+static pci_ers_result_t mlx4_pci_slot_reset(struct pci_dev *pdev)
+{
+	int ret = __mlx4_init_one(pdev, NULL);
+
+	return ret ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED;
+}
+
+static struct pci_error_handlers mlx4_err_handler = {
+	.error_detected = mlx4_pci_err_detected,
+	.slot_reset     = mlx4_pci_slot_reset,
+};
+
 static struct pci_driver mlx4_driver = {
 	.name		= DRV_NAME,
 	.id_table	= mlx4_pci_table,
 	.probe		= mlx4_init_one,
-	.remove		= __devexit_p(mlx4_remove_one)
+	.remove		= __devexit_p(mlx4_remove_one),
+	.err_handler    = &mlx4_err_handler,
 };
 
 static int __init mlx4_verify_params(void)

drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_ethtool.c

@@ -129,7 +129,6 @@ static int pch_gbe_set_settings(struct net_device *netdev,
 	hw->mac.link_duplex = ecmd->duplex;
 	hw->phy.autoneg_advertised = ecmd->advertising;
 	hw->mac.autoneg = ecmd->autoneg;
-	pch_gbe_hal_phy_sw_reset(hw);
 
 	/* reset the link */
 	if (netif_running(adapter->netdev)) {