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authorYevgeny Petrilin <yevgenyp@mellanox.co.il>2009-06-01 23:24:07 +0000
committerDavid S. Miller <davem@davemloft.net>2009-06-02 02:29:06 -0700
commitf813cad836ab14b764cfe76f42a3b50bb9677b30 (patch)
treeccaafb7bcaa72e737fb8939e0c556f2466bb0d7d /drivers/net/mlx4/en_netdev.c
parent3db36fb2c88d68ee28d20845d5bb805ea9a7f6d8 (diff)
mlx4_en: multiqueue support
By default the driver opens 8 TX queues (defined by MLX4_EN_NUM_TX_RINGS). If the driver is configured to support Per Priority Flow Control, we open 8 additional TX rings. dev->real_num_tx_queues is always set to be MLX4_EN_NUM_TX_RINGS. The mlx4_en_select_queue() function uses standard hashing (skb_tx_hash) in case that PPFC is not supported or the skb contain a vlan tag, otherwise the queue is selected according to vlan priority. Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/mlx4/en_netdev.c')
-rw-r--r--drivers/net/mlx4/en_netdev.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/net/mlx4/en_netdev.c b/drivers/net/mlx4/en_netdev.c
index 16a634ffbcd..37e4d30cbf0 100644
--- a/drivers/net/mlx4/en_netdev.c
+++ b/drivers/net/mlx4/en_netdev.c
@@ -934,6 +934,7 @@ static const struct net_device_ops mlx4_netdev_ops = {
.ndo_open = mlx4_en_open,
.ndo_stop = mlx4_en_close,
.ndo_start_xmit = mlx4_en_xmit,
+ .ndo_select_queue = mlx4_en_select_queue,
.ndo_get_stats = mlx4_en_get_stats,
.ndo_set_multicast_list = mlx4_en_set_multicast,
.ndo_set_mac_address = mlx4_en_set_mac,
@@ -956,7 +957,7 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
int i;
int err;
- dev = alloc_etherdev(sizeof(struct mlx4_en_priv));
+ dev = alloc_etherdev_mq(sizeof(struct mlx4_en_priv), prof->tx_ring_num);
if (dev == NULL) {
mlx4_err(mdev, "Net device allocation failed\n");
return -ENOMEM;
@@ -1018,14 +1019,12 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
}
priv->allocated = 1;
- /* Populate Tx priority mappings */
- mlx4_en_set_prio_map(priv, priv->tx_prio_map, prof->tx_ring_num);
-
/*
* Initialize netdev entry points
*/
dev->netdev_ops = &mlx4_netdev_ops;
dev->watchdog_timeo = MLX4_EN_WATCHDOG_TIMEOUT;
+ dev->real_num_tx_queues = MLX4_EN_NUM_TX_RINGS;
SET_ETHTOOL_OPS(dev, &mlx4_en_ethtool_ops);