9 files changed, 52 insertions, 60 deletions

diff --git a/drivers/net/mlx4/en_main.c b/drivers/net/mlx4/en_main.c
index eda72dd2120f..510633fd57f6 100644
--- a/drivers/net/mlx4/en_main.c
+++ b/drivers/net/mlx4/en_main.c
@@ -181,7 +181,7 @@ static void *mlx4_en_add(struct mlx4_dev *dev)
 	mdev->workqueue = create_singlethread_workqueue("mlx4_en");
 	if (!mdev->workqueue) {
 		err = -ENOMEM;
-		goto err_close_nic;
+		goto err_mr;
 	}
 
 	/* At this stage all non-port specific tasks are complete:
@@ -214,9 +214,8 @@ err_free_netdev:
 	flush_workqueue(mdev->workqueue);
 
 	/* Stop event queue before we drop down to release shared SW state */
-
-err_close_nic:
 	destroy_workqueue(mdev->workqueue);
+
 err_mr:
 	mlx4_mr_free(dev, &mdev->mr);
 err_uar:
diff --git a/drivers/net/mlx4/en_netdev.c b/drivers/net/mlx4/en_netdev.c
index 303c23de6cac..7bcc49de1637 100644
--- a/drivers/net/mlx4/en_netdev.c
+++ b/drivers/net/mlx4/en_netdev.c
@@ -348,11 +348,9 @@ static void mlx4_en_tx_timeout(struct net_device *dev)
 	if (netif_msg_timer(priv))
 		mlx4_warn(mdev, "Tx timeout called on port:%d\n", priv->port);
 
-	if (netif_carrier_ok(dev)) {
-		priv->port_stats.tx_timeout++;
-		mlx4_dbg(DRV, priv, "Scheduling watchdog\n");
-		queue_work(mdev->workqueue, &priv->watchdog_task);
-	}
+	priv->port_stats.tx_timeout++;
+	mlx4_dbg(DRV, priv, "Scheduling watchdog\n");
+	queue_work(mdev->workqueue, &priv->watchdog_task);
 }
 
 
@@ -585,7 +583,7 @@ int mlx4_en_start_port(struct net_device *dev)
 		err = mlx4_en_activate_cq(priv, cq);
 		if (err) {
 			mlx4_err(mdev, "Failed activating Rx CQ\n");
-			goto rx_err;
+			goto cq_err;
 		}
 		for (j = 0; j < cq->size; j++)
 			cq->buf[j].owner_sr_opcode = MLX4_CQE_OWNER_MASK;
@@ -761,9 +759,14 @@ static void mlx4_en_restart(struct work_struct *work)
 	struct net_device *dev = priv->dev;
 
 	mlx4_dbg(DRV, priv, "Watchdog task called for port %d\n", priv->port);
-	mlx4_en_stop_port(dev);
-	if (mlx4_en_start_port(dev))
-	    mlx4_err(mdev, "Failed restarting port %d\n", priv->port);
+
+	mutex_lock(&mdev->state_lock);
+	if (priv->port_up) {
+		mlx4_en_stop_port(dev);
+		if (mlx4_en_start_port(dev))
+			mlx4_err(mdev, "Failed restarting port %d\n", priv->port);
+	}
+	mutex_unlock(&mdev->state_lock);
 }
 
 
@@ -1054,7 +1057,7 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
 	 * Set driver features
 	 */
 	dev->features |= NETIF_F_SG;
-	dev->features |= NETIF_F_HW_CSUM;
+	dev->features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
 	dev->features |= NETIF_F_HIGHDMA;
 	dev->features |= NETIF_F_HW_VLAN_TX |
 			 NETIF_F_HW_VLAN_RX |
diff --git a/drivers/net/mlx4/en_port.c b/drivers/net/mlx4/en_port.c
index c5a4c0389752..a29abe845d2e 100644
--- a/drivers/net/mlx4/en_port.c
+++ b/drivers/net/mlx4/en_port.c
@@ -151,6 +151,7 @@ int mlx4_en_DUMP_ETH_STATS(struct mlx4_en_dev *mdev, u8 port, u8 reset)
 	struct mlx4_cmd_mailbox *mailbox;
 	u64 in_mod = reset << 8 | port;
 	int err;
+	int i;
 
 	mailbox = mlx4_alloc_cmd_mailbox(mdev->dev);
 	if (IS_ERR(mailbox))
@@ -165,38 +166,18 @@ int mlx4_en_DUMP_ETH_STATS(struct mlx4_en_dev *mdev, u8 port, u8 reset)
 
 	spin_lock_bh(&priv->stats_lock);
 
-	stats->rx_packets = be32_to_cpu(mlx4_en_stats->RTOTFRMS) -
-			    be32_to_cpu(mlx4_en_stats->RDROP);
-	stats->tx_packets = be64_to_cpu(mlx4_en_stats->TTOT_prio_0) +
-			    be64_to_cpu(mlx4_en_stats->TTOT_prio_1) +
-			    be64_to_cpu(mlx4_en_stats->TTOT_prio_2) +
-			    be64_to_cpu(mlx4_en_stats->TTOT_prio_3) +
-			    be64_to_cpu(mlx4_en_stats->TTOT_prio_4) +
-			    be64_to_cpu(mlx4_en_stats->TTOT_prio_5) +
-			    be64_to_cpu(mlx4_en_stats->TTOT_prio_6) +
-			    be64_to_cpu(mlx4_en_stats->TTOT_prio_7) +
-			    be64_to_cpu(mlx4_en_stats->TTOT_novlan) +
-			    be64_to_cpu(mlx4_en_stats->TTOT_loopbk);
-	stats->rx_bytes = be64_to_cpu(mlx4_en_stats->ROCT_prio_0) +
-			  be64_to_cpu(mlx4_en_stats->ROCT_prio_1) +
-			  be64_to_cpu(mlx4_en_stats->ROCT_prio_2) +
-			  be64_to_cpu(mlx4_en_stats->ROCT_prio_3) +
-			  be64_to_cpu(mlx4_en_stats->ROCT_prio_4) +
-			  be64_to_cpu(mlx4_en_stats->ROCT_prio_5) +
-			  be64_to_cpu(mlx4_en_stats->ROCT_prio_6) +
-			  be64_to_cpu(mlx4_en_stats->ROCT_prio_7) +
-			  be64_to_cpu(mlx4_en_stats->ROCT_novlan);
-
-	stats->tx_bytes = be64_to_cpu(mlx4_en_stats->TTTLOCT_prio_0) +
-			  be64_to_cpu(mlx4_en_stats->TTTLOCT_prio_1) +
-			  be64_to_cpu(mlx4_en_stats->TTTLOCT_prio_2) +
-			  be64_to_cpu(mlx4_en_stats->TTTLOCT_prio_3) +
-			  be64_to_cpu(mlx4_en_stats->TTTLOCT_prio_4) +
-			  be64_to_cpu(mlx4_en_stats->TTTLOCT_prio_5) +
-			  be64_to_cpu(mlx4_en_stats->TTTLOCT_prio_6) +
-			  be64_to_cpu(mlx4_en_stats->TTTLOCT_prio_7) +
-			  be64_to_cpu(mlx4_en_stats->TTTLOCT_novlan) +
-			  be64_to_cpu(mlx4_en_stats->TTTLOCT_loopbk);
+	stats->rx_packets = 0;
+	stats->rx_bytes = 0;
+	for (i = 0; i < priv->rx_ring_num; i++) {
+		stats->rx_packets += priv->rx_ring[i].packets;
+		stats->rx_bytes += priv->rx_ring[i].bytes;
+	}
+	stats->tx_packets = 0;
+	stats->tx_bytes = 0;
+	for (i = 0; i <= priv->tx_ring_num; i++) {
+		stats->tx_packets += priv->tx_ring[i].packets;
+		stats->tx_bytes += priv->tx_ring[i].bytes;
+	}
 
 	stats->rx_errors = be64_to_cpu(mlx4_en_stats->PCS) +
 			   be32_to_cpu(mlx4_en_stats->RdropLength) +
diff --git a/drivers/net/mlx4/en_resources.c b/drivers/net/mlx4/en_resources.c
index a0545209e507..65ca706c04bb 100644
--- a/drivers/net/mlx4/en_resources.c
+++ b/drivers/net/mlx4/en_resources.c
@@ -94,3 +94,9 @@ void mlx4_en_unmap_buffer(struct mlx4_buf *buf)
 
 	vunmap(buf->direct.buf);
 }
+
+void mlx4_en_sqp_event(struct mlx4_qp *qp, enum mlx4_event event)
+{
+    return;
+}
+
diff --git a/drivers/net/mlx4/en_rx.c b/drivers/net/mlx4/en_rx.c
index 7e40741fb7d8..7942c4d3cd88 100644
--- a/drivers/net/mlx4/en_rx.c
+++ b/drivers/net/mlx4/en_rx.c
@@ -436,8 +436,9 @@ int mlx4_en_activate_rx_rings(struct mlx4_en_priv *priv)
 		/* Initialize page allocators */
 		err = mlx4_en_init_allocator(priv, ring);
 		if (err) {
-			 mlx4_err(mdev, "Failed initializing ring allocator\n");
-			 goto err_allocator;
+			mlx4_err(mdev, "Failed initializing ring allocator\n");
+			ring_ind--;
+			goto err_allocator;
 		}
 
 		/* Fill Rx buffers */
@@ -467,6 +468,7 @@ int mlx4_en_activate_rx_rings(struct mlx4_en_priv *priv)
 				     ring->wqres.db.dma, &ring->srq);
 		if (err){
 			mlx4_err(mdev, "Failed to allocate srq\n");
+			ring_ind--;
 			goto err_srq;
 		}
 		ring->srq.event = mlx4_en_srq_event;
@@ -608,6 +610,10 @@ static struct sk_buff *mlx4_en_rx_skb(struct mlx4_en_priv *priv,
 		used_frags = mlx4_en_complete_rx_desc(priv, rx_desc, skb_frags,
 						      skb_shinfo(skb)->frags,
 						      page_alloc, length);
+		if (unlikely(!used_frags)) {
+			kfree_skb(skb);
+			return NULL;
+		}
 		skb_shinfo(skb)->nr_frags = used_frags;
 
 		/* Copy headers into the skb linear buffer */
@@ -926,12 +932,6 @@ void mlx4_en_set_default_rss_map(struct mlx4_en_priv *priv,
 	}
 }
 
-static void mlx4_en_sqp_event(struct mlx4_qp *qp, enum mlx4_event event)
-{
-    return;
-}
-
-
 static int mlx4_en_config_rss_qp(struct mlx4_en_priv *priv,
 				 int qpn, int srqn, int cqn,
 				 enum mlx4_qp_state *state,
diff --git a/drivers/net/mlx4/en_tx.c b/drivers/net/mlx4/en_tx.c
index 4afd5993e31c..ac6fc499b280 100644
--- a/drivers/net/mlx4/en_tx.c
+++ b/drivers/net/mlx4/en_tx.c
@@ -112,6 +112,7 @@ int mlx4_en_create_tx_ring(struct mlx4_en_priv *priv,
 		mlx4_err(mdev, "Failed allocating qp %d\n", ring->qpn);
 		goto err_reserve;
 	}
+	ring->qp.event = mlx4_en_sqp_event;
 
 	return 0;
 
diff --git a/drivers/net/mlx4/main.c b/drivers/net/mlx4/main.c
index a66f5b2fd288..30bea9689694 100644
--- a/drivers/net/mlx4/main.c
+++ b/drivers/net/mlx4/main.c
@@ -976,7 +976,7 @@ static void mlx4_enable_msi_x(struct mlx4_dev *dev)
 				nreq = err;
 				goto retry;
 			}
-
+			kfree(entries);
 			goto no_msi;
 		}
 
@@ -1076,20 +1076,20 @@ static int __mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
 
 	pci_set_master(pdev);
 
-	err = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
+	err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
 	if (err) {
 		dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask.\n");
-		err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
+		err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
 		if (err) {
 			dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting.\n");
 			goto err_release_bar2;
 		}
 	}
-	err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
+	err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
 	if (err) {
 		dev_warn(&pdev->dev, "Warning: couldn't set 64-bit "
 			 "consistent PCI DMA mask.\n");
-		err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
+		err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
 		if (err) {
 			dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, "
 				"aborting.\n");
diff --git a/drivers/net/mlx4/mlx4_en.h b/drivers/net/mlx4/mlx4_en.h
index e9af32d41ca4..ef840abbcd39 100644
--- a/drivers/net/mlx4/mlx4_en.h
+++ b/drivers/net/mlx4/mlx4_en.h
@@ -538,6 +538,7 @@ int mlx4_en_poll_rx_cq(struct napi_struct *napi, int budget);
 void mlx4_en_fill_qp_context(struct mlx4_en_priv *priv, int size, int stride,
 			     int is_tx, int rss, int qpn, int cqn, int srqn,
 			     struct mlx4_qp_context *context);
+void mlx4_en_sqp_event(struct mlx4_qp *qp, enum mlx4_event event);
 int mlx4_en_map_buffer(struct mlx4_buf *buf);
 void mlx4_en_unmap_buffer(struct mlx4_buf *buf);
 
diff --git a/drivers/net/mlx4/port.c b/drivers/net/mlx4/port.c
index 7cce3342ef8c..606aa58afdea 100644
--- a/drivers/net/mlx4/port.c
+++ b/drivers/net/mlx4/port.c
@@ -299,13 +299,14 @@ int mlx4_SET_PORT(struct mlx4_dev *dev, u8 port)
 	struct mlx4_cmd_mailbox *mailbox;
 	int err;
 
+	if (dev->caps.port_type[port] == MLX4_PORT_TYPE_ETH)
+		return 0;
+
 	mailbox = mlx4_alloc_cmd_mailbox(dev);
 	if (IS_ERR(mailbox))
 		return PTR_ERR(mailbox);
 
 	memset(mailbox->buf, 0, 256);
-	if (dev->caps.port_type[port] == MLX4_PORT_TYPE_ETH)
-		return 0;
 
 	((__be32 *) mailbox->buf)[1] = dev->caps.ib_port_def_cap[port];
 	err = mlx4_cmd(dev, mailbox->dma, port, 0, MLX4_CMD_SET_PORT,