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virtio_net: simplify tx queue wake condition check

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Consolidate the two nested if conditions for checking tx queue wake
conditions into a single combined condition. This improves code
readability without changing functionality. And move netif_tx_wake_queue
into if condition to reduce unnecessary checks for queue stops.

Signed-off-by: Liming Wu <liming.wu@jaguarmicro.com>
Tested-by: Lei Yang <leiyang@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Link: https://patch.msgid.link/20250710023208.846-1-liming.wu@jaguarmicro.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Liming Wu 2025-07-10 10:32:08 +08:00 committed by Jakub Kicinski
parent ecdec65ec7
commit 2f82e99546
1 changed files with 10 additions and 12 deletions
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22
drivers/net/virtio_net.c
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@ -3064,12 +3064,11 @@ static void virtnet_poll_cleantx(struct receive_queue *rq, int budget)
free_old_xmit(sq, txq, !!budget);
} while (unlikely(!virtqueue_enable_cb_delayed(sq->vq)));
if (sq->vq->num_free >= MAX_SKB_FRAGS + 2) {
if (netif_tx_queue_stopped(txq)) {
u64_stats_update_begin(&sq->stats.syncp);
u64_stats_inc(&sq->stats.wake);
u64_stats_update_end(&sq->stats.syncp);
}
if (sq->vq->num_free >= MAX_SKB_FRAGS + 2 &&
netif_tx_queue_stopped(txq)) {
u64_stats_update_begin(&sq->stats.syncp);
u64_stats_inc(&sq->stats.wake);
u64_stats_update_end(&sq->stats.syncp);
netif_tx_wake_queue(txq);
}
@ -3261,12 +3260,11 @@ static int virtnet_poll_tx(struct napi_struct *napi, int budget)
else
free_old_xmit(sq, txq, !!budget);
if (sq->vq->num_free >= MAX_SKB_FRAGS + 2) {
if (netif_tx_queue_stopped(txq)) {
u64_stats_update_begin(&sq->stats.syncp);
u64_stats_inc(&sq->stats.wake);
u64_stats_update_end(&sq->stats.syncp);
}
if (sq->vq->num_free >= MAX_SKB_FRAGS + 2 &&
netif_tx_queue_stopped(txq)) {
u64_stats_update_begin(&sq->stats.syncp);
u64_stats_inc(&sq->stats.wake);
u64_stats_update_end(&sq->stats.syncp);
netif_tx_wake_queue(txq);
}