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Don't stall transmit queue on drops in mlx5en(4).

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When a transmitted packet is dropped don't stall the transmit queue.

MFC after:		3 days
Approved by:		re (marius)
Sponsored by:		Mellanox Technologies
This commit is contained in:
Hans Petter Selasky 2018-09-06 12:19:36 +00:00
parent 2d32b0a304
commit 0be5034007
1 changed files with 2 additions and 4 deletions
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6
sys/dev/mlx5/mlx5_en/mlx5_en_tx.c
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@ -528,13 +528,11 @@ mlx5e_xmit_locked(struct ifnet *ifp, struct mlx5e_sq *sq, struct mbuf *mb)
/* Process the queue */
while ((next = drbr_peek(ifp, sq->br)) != NULL) {
if (mlx5e_sq_xmit(sq, &next) != 0) {
if (next == NULL) {
drbr_advance(ifp, sq->br);
} else {
if (next != NULL) {
drbr_putback(ifp, sq->br, next);
atomic_store_rel_int(&sq->queue_state, MLX5E_SQ_FULL);
break;
}
break;
}
drbr_advance(ifp, sq->br);
}