Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1244 commits)
  pkt_sched: Rename PSCHED_US2NS and PSCHED_NS2US
  ipv4: Fix fib_trie rebalancing
  Bluetooth: Fix issue with uninitialized nsh.type in DTL-1 driver
  Bluetooth: Fix Kconfig issue with RFKILL integration
  PIM-SM: namespace changes
  ipv4: update ARPD help text
  net: use a deferred timer in rt_check_expire
  ieee802154: fix kconfig bool/tristate muckup
  bonding: initialization rework
  bonding: use is_zero_ether_addr
  bonding: network device names are case sensative
  bonding: elminate bad refcount code
  bonding: fix style issues
  bonding: fix destructor
  bonding: remove bonding read/write semaphore
  bonding: initialize before registration
  bonding: bond_create always called with default parameters
  x_tables: Convert printk to pr_err
  netfilter: conntrack: optional reliable conntrack event delivery
  list_nulls: add hlist_nulls_add_head and hlist_nulls_del
  ...

1 files changed, 36 insertions, 76 deletions

diff --git a/drivers/net/mlx4/en_tx.c b/drivers/net/mlx4/en_tx.c
index e5c98a98ad3..5dc7466ad03 100644
--- a/drivers/net/mlx4/en_tx.c
+++ b/drivers/net/mlx4/en_tx.c
@@ -68,15 +68,15 @@ int mlx4_en_create_tx_ring(struct mlx4_en_priv *priv,
 	tmp = size * sizeof(struct mlx4_en_tx_info);
 	ring->tx_info = vmalloc(tmp);
 	if (!ring->tx_info) {
-		mlx4_err(mdev, "Failed allocating tx_info ring\n");
+		en_err(priv, "Failed allocating tx_info ring\n");
 		return -ENOMEM;
 	}
-	mlx4_dbg(DRV, priv, "Allocated tx_info ring at addr:%p size:%d\n",
+	en_dbg(DRV, priv, "Allocated tx_info ring at addr:%p size:%d\n",
 		 ring->tx_info, tmp);
 
 	ring->bounce_buf = kmalloc(MAX_DESC_SIZE, GFP_KERNEL);
 	if (!ring->bounce_buf) {
-		mlx4_err(mdev, "Failed allocating bounce buffer\n");
+		en_err(priv, "Failed allocating bounce buffer\n");
 		err = -ENOMEM;
 		goto err_tx;
 	}
@@ -85,31 +85,31 @@ int mlx4_en_create_tx_ring(struct mlx4_en_priv *priv,
 	err = mlx4_alloc_hwq_res(mdev->dev, &ring->wqres, ring->buf_size,
 				 2 * PAGE_SIZE);
 	if (err) {
-		mlx4_err(mdev, "Failed allocating hwq resources\n");
+		en_err(priv, "Failed allocating hwq resources\n");
 		goto err_bounce;
 	}
 
 	err = mlx4_en_map_buffer(&ring->wqres.buf);
 	if (err) {
-		mlx4_err(mdev, "Failed to map TX buffer\n");
+		en_err(priv, "Failed to map TX buffer\n");
 		goto err_hwq_res;
 	}
 
 	ring->buf = ring->wqres.buf.direct.buf;
 
-	mlx4_dbg(DRV, priv, "Allocated TX ring (addr:%p) - buf:%p size:%d "
-		 "buf_size:%d dma:%llx\n", ring, ring->buf, ring->size,
-		 ring->buf_size, (unsigned long long) ring->wqres.buf.direct.map);
+	en_dbg(DRV, priv, "Allocated TX ring (addr:%p) - buf:%p size:%d "
+	       "buf_size:%d dma:%llx\n", ring, ring->buf, ring->size,
+	       ring->buf_size, (unsigned long long) ring->wqres.buf.direct.map);
 
 	err = mlx4_qp_reserve_range(mdev->dev, 1, 1, &ring->qpn);
 	if (err) {
-		mlx4_err(mdev, "Failed reserving qp for tx ring.\n");
+		en_err(priv, "Failed reserving qp for tx ring.\n");
 		goto err_map;
 	}
 
 	err = mlx4_qp_alloc(mdev->dev, ring->qpn, &ring->qp);
 	if (err) {
-		mlx4_err(mdev, "Failed allocating qp %d\n", ring->qpn);
+		en_err(priv, "Failed allocating qp %d\n", ring->qpn);
 		goto err_reserve;
 	}
 	ring->qp.event = mlx4_en_sqp_event;
@@ -135,7 +135,7 @@ void mlx4_en_destroy_tx_ring(struct mlx4_en_priv *priv,
 			     struct mlx4_en_tx_ring *ring)
 {
 	struct mlx4_en_dev *mdev = priv->mdev;
-	mlx4_dbg(DRV, priv, "Destroying tx ring, qpn: %d\n", ring->qpn);
+	en_dbg(DRV, priv, "Destroying tx ring, qpn: %d\n", ring->qpn);
 
 	mlx4_qp_remove(mdev->dev, &ring->qp);
 	mlx4_qp_free(mdev->dev, &ring->qp);
@@ -274,12 +274,12 @@ int mlx4_en_free_tx_buf(struct net_device *dev, struct mlx4_en_tx_ring *ring)
 
 	/* Skip last polled descriptor */
 	ring->cons += ring->last_nr_txbb;
-	mlx4_dbg(DRV, priv, "Freeing Tx buf - cons:0x%x prod:0x%x\n",
+	en_dbg(DRV, priv, "Freeing Tx buf - cons:0x%x prod:0x%x\n",
 		 ring->cons, ring->prod);
 
 	if ((u32) (ring->prod - ring->cons) > ring->size) {
 		if (netif_msg_tx_err(priv))
-			mlx4_warn(priv->mdev, "Tx consumer passed producer!\n");
+			en_warn(priv, "Tx consumer passed producer!\n");
 		return 0;
 	}
 
@@ -292,39 +292,11 @@ int mlx4_en_free_tx_buf(struct net_device *dev, struct mlx4_en_tx_ring *ring)
 	}
 
 	if (cnt)
-		mlx4_dbg(DRV, priv, "Freed %d uncompleted tx descriptors\n", cnt);
+		en_dbg(DRV, priv, "Freed %d uncompleted tx descriptors\n", cnt);
 
 	return cnt;
 }
 
-void mlx4_en_set_prio_map(struct mlx4_en_priv *priv, u16 *prio_map, u32 ring_num)
-{
-	int block = 8 / ring_num;
-	int extra = 8 - (block * ring_num);
-	int num = 0;
-	u16 ring = 1;
-	int prio;
-
-	if (ring_num == 1) {
-		for (prio = 0; prio < 8; prio++)
-			prio_map[prio] = 0;
-		return;
-	}
-
-	for (prio = 0; prio < 8; prio++) {
-		if (extra && (num == block + 1)) {
-			ring++;
-			num = 0;
-			extra--;
-		} else if (!extra && (num == block)) {
-			ring++;
-			num = 0;
-		}
-		prio_map[prio] = ring;
-		mlx4_dbg(DRV, priv, " prio:%d --> ring:%d\n", prio, ring);
-		num++;
-	}
-}
 
 static void mlx4_en_process_tx_cq(struct net_device *dev, struct mlx4_en_cq *cq)
 {
@@ -386,18 +358,8 @@ static void mlx4_en_process_tx_cq(struct net_device *dev, struct mlx4_en_cq *cq)
 	if (unlikely(ring->blocked)) {
 		if ((u32) (ring->prod - ring->cons) <=
 		     ring->size - HEADROOM - MAX_DESC_TXBBS) {
-
-			/* TODO: support multiqueue netdevs. Currently, we block
-			 * when *any* ring is full. Note that:
-			 * - 2 Tx rings can unblock at the same time and call
-			 *   netif_wake_queue(), which is OK since this
-			 *   operation is idempotent.
-			 * - We might wake the queue just after another ring
-			 *   stopped it. This is no big deal because the next
-			 *   transmission on that ring would stop the queue.
-			 */
 			ring->blocked = 0;
-			netif_wake_queue(dev);
+			netif_tx_wake_queue(netdev_get_tx_queue(dev, cq->ring));
 			priv->port_stats.wake_queue++;
 		}
 	}
@@ -539,7 +501,6 @@ static int get_real_size(struct sk_buff *skb, struct net_device *dev,
 			 int *lso_header_size)
 {
 	struct mlx4_en_priv *priv = netdev_priv(dev);
-	struct mlx4_en_dev *mdev = priv->mdev;
 	int real_size;
 
 	if (skb_is_gso(skb)) {
@@ -553,14 +514,14 @@ static int get_real_size(struct sk_buff *skb, struct net_device *dev,
 				real_size += DS_SIZE;
 			else {
 				if (netif_msg_tx_err(priv))
-					mlx4_warn(mdev, "Non-linear headers\n");
+					en_warn(priv, "Non-linear headers\n");
 				dev_kfree_skb_any(skb);
 				return 0;
 			}
 		}
 		if (unlikely(*lso_header_size > MAX_LSO_HDR_SIZE)) {
 			if (netif_msg_tx_err(priv))
-				mlx4_warn(mdev, "LSO header size too big\n");
+				en_warn(priv, "LSO header size too big\n");
 			dev_kfree_skb_any(skb);
 			return 0;
 		}
@@ -617,21 +578,20 @@ static void build_inline_wqe(struct mlx4_en_tx_desc *tx_desc, struct sk_buff *sk
 	tx_desc->ctrl.fence_size = (real_size / 16) & 0x3f;
 }
 
-static int get_vlan_info(struct mlx4_en_priv *priv, struct sk_buff *skb,
-			 u16 *vlan_tag)
+u16 mlx4_en_select_queue(struct net_device *dev, struct sk_buff *skb)
 {
-	int tx_ind;
+	struct mlx4_en_priv *priv = netdev_priv(dev);
+	u16 vlan_tag = 0;
 
-	/* Obtain VLAN information if present */
-	if (priv->vlgrp && vlan_tx_tag_present(skb)) {
-		*vlan_tag = vlan_tx_tag_get(skb);
-		/* Set the Tx ring to use according to vlan priority */
-		tx_ind = priv->tx_prio_map[*vlan_tag >> 13];
-	} else {
-		*vlan_tag = 0;
-		tx_ind = 0;
+	/* If we support per priority flow control and the packet contains
+	 * a vlan tag, send the packet to the TX ring assigned to that priority
+	 */
+	if (priv->prof->rx_ppp && priv->vlgrp && vlan_tx_tag_present(skb)) {
+		vlan_tag = vlan_tx_tag_get(skb);
+		return MLX4_EN_NUM_TX_RINGS + (vlan_tag >> 13);
 	}
-	return tx_ind;
+
+	return skb_tx_hash(dev, skb);
 }
 
 int mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev)
@@ -651,7 +611,7 @@ int mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev)
 	dma_addr_t dma;
 	u32 index;
 	__be32 op_own;
-	u16 vlan_tag;
+	u16 vlan_tag = 0;
 	int i;
 	int lso_header_size;
 	void *fragptr;
@@ -669,20 +629,21 @@ int mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev)
 	nr_txbb = desc_size / TXBB_SIZE;
 	if (unlikely(nr_txbb > MAX_DESC_TXBBS)) {
 		if (netif_msg_tx_err(priv))
-			mlx4_warn(mdev, "Oversized header or SG list\n");
+			en_warn(priv, "Oversized header or SG list\n");
 		dev_kfree_skb_any(skb);
 		return NETDEV_TX_OK;
 	}
 
-	tx_ind = get_vlan_info(priv, skb, &vlan_tag);
+	tx_ind = skb->queue_mapping;
 	ring = &priv->tx_ring[tx_ind];
+	if (priv->vlgrp && vlan_tx_tag_present(skb))
+		vlan_tag = vlan_tx_tag_get(skb);
 
 	/* Check available TXBBs And 2K spare for prefetch */
 	if (unlikely(((int)(ring->prod - ring->cons)) >
 		     ring->size - HEADROOM - MAX_DESC_TXBBS)) {
-		/* every full Tx ring stops queue.
-		 * TODO: implement multi-queue support (per-queue stop) */
-		netif_stop_queue(dev);
+		/* every full Tx ring stops queue */
+		netif_tx_stop_queue(netdev_get_tx_queue(dev, tx_ind));
 		ring->blocked = 1;
 		priv->port_stats.queue_stopped++;
 
@@ -695,7 +656,7 @@ int mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev)
 	/* Now that we know what Tx ring to use */
 	if (unlikely(!priv->port_up)) {
 		if (netif_msg_tx_err(priv))
-			mlx4_warn(mdev, "xmit: port down!\n");
+			en_warn(priv, "xmit: port down!\n");
 		dev_kfree_skb_any(skb);
 		return NETDEV_TX_OK;
 	}
@@ -819,7 +780,6 @@ int mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev)
 	/* Ring doorbell! */
 	wmb();
 	writel(ring->doorbell_qpn, mdev->uar_map + MLX4_SEND_DOORBELL);
-	dev->trans_start = jiffies;
 
 	/* Poll CQ here */
 	mlx4_en_xmit_poll(priv, tx_ind);