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sfc: When waking a stopped tx_queue, only lock that tx_queue

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Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Steve Hodgson 2010-12-02 13:48:14 +00:00 committed by David S. Miller
parent 78d4189d6b
commit 4f3907e9a6
1 changed files with 6 additions and 2 deletions
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8
drivers/net/sfc/tx.c
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@ -401,6 +401,7 @@ void efx_xmit_done(struct efx_tx_queue *tx_queue, unsigned int index)
{
unsigned fill_level;
struct efx_nic *efx = tx_queue->efx;
struct netdev_queue *queue;
EFX_BUG_ON_PARANOID(index > tx_queue->ptr_mask);
@ -417,12 +418,15 @@ void efx_xmit_done(struct efx_tx_queue *tx_queue, unsigned int index)
/* Do this under netif_tx_lock(), to avoid racing
* with efx_xmit(). */
netif_tx_lock(efx->net_dev);
queue = netdev_get_tx_queue(
efx->net_dev,
tx_queue->queue / EFX_TXQ_TYPES);
__netif_tx_lock(queue, smp_processor_id());
if (tx_queue->stopped) {
tx_queue->stopped = 0;
efx_wake_queue(tx_queue->channel);
}
netif_tx_unlock(efx->net_dev);
__netif_tx_unlock(queue);
}
}
}