diff options
| author | Govindarajulu Varadarajan <_govind@gmx.com> | 2014-11-19 10:29:32 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-11-21 20:17:54 +0300 |
| commit | f8e34d246c7d89e13399b410f92234acd2f7411a (patch) | |
| tree | a761fe599db9b9095f96656ddc949160f761e9ab /drivers/net/ethernet/cisco/enic/enic_main.c | |
| parent | 3819ffdff70da4c0d3bab0f8becabfc6936a230c (diff) | |
| download | linux-f8e34d246c7d89e13399b410f92234acd2f7411a.tar.xz | |
enic: support skb->xmit_more
Check and update posted_index only when skb->xmit_more is 0 or tx queue is full.
v2:
use txq_map instead of skb_get_queue_mapping(skb)
Signed-off-by: Govindarajulu Varadarajan <_govind@gmx.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/cisco/enic/enic_main.c')
| -rw-r--r-- | drivers/net/ethernet/cisco/enic/enic_main.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/net/ethernet/cisco/enic/enic_main.c b/drivers/net/ethernet/cisco/enic/enic_main.c index 5afe360c7e89..b9cda2fc5ae8 100644 --- a/drivers/net/ethernet/cisco/enic/enic_main.c +++ b/drivers/net/ethernet/cisco/enic/enic_main.c @@ -533,6 +533,7 @@ static netdev_tx_t enic_hard_start_xmit(struct sk_buff *skb, struct vnic_wq *wq; unsigned long flags; unsigned int txq_map; + struct netdev_queue *txq; if (skb->len <= 0) { dev_kfree_skb_any(skb); @@ -541,6 +542,7 @@ static netdev_tx_t enic_hard_start_xmit(struct sk_buff *skb, txq_map = skb_get_queue_mapping(skb) % enic->wq_count; wq = &enic->wq[txq_map]; + txq = netdev_get_tx_queue(netdev, txq_map); /* Non-TSO sends must fit within ENIC_NON_TSO_MAX_DESC descs, * which is very likely. In the off chance it's going to take @@ -558,7 +560,7 @@ static netdev_tx_t enic_hard_start_xmit(struct sk_buff *skb, if (vnic_wq_desc_avail(wq) < skb_shinfo(skb)->nr_frags + ENIC_DESC_MAX_SPLITS) { - netif_tx_stop_queue(netdev_get_tx_queue(netdev, txq_map)); + netif_tx_stop_queue(txq); /* This is a hard error, log it */ netdev_err(netdev, "BUG! Tx ring full when queue awake!\n"); spin_unlock_irqrestore(&enic->wq_lock[txq_map], flags); @@ -568,7 +570,9 @@ static netdev_tx_t enic_hard_start_xmit(struct sk_buff *skb, enic_queue_wq_skb(enic, wq, skb); if (vnic_wq_desc_avail(wq) < MAX_SKB_FRAGS + ENIC_DESC_MAX_SPLITS) - netif_tx_stop_queue(netdev_get_tx_queue(netdev, txq_map)); + netif_tx_stop_queue(txq); + if (!skb->xmit_more || netif_xmit_stopped(txq)) + vnic_wq_doorbell(wq); spin_unlock_irqrestore(&enic->wq_lock[txq_map], flags); |