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net/mlx5e: Update netdev txq on completions during closure

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[ Upstream commit 5e911e2c06 ]

On sq closure when we free its descriptors, we should also update netdev
txq on completions which would not arrive. Otherwise if we reopen sqs
and attach them back, for example on fw fatal recovery flow, we may get
tx timeout.

Fixes: 29429f3300 ("net/mlx5e: Timeout if SQ doesn't flush during close")
Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Moshe Shemesh
2020-04-07 17:38:28 +03:00
committed by Chris
parent afbf25e204
commit 92a0ef2762
1 changed files with 5 additions and 1 deletions
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6
drivers/net/ethernet/mellanox/mlx5/core/en_tx.c
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@@ -499,8 +499,9 @@ bool mlx5e_poll_tx_cq(struct mlx5e_cq *cq, int napi_budget)
static void mlx5e_free_txq_sq_descs(struct mlx5e_sq *sq)
{
struct mlx5e_tx_wqe_info *wi;
u32 nbytes = 0;
u16 ci, npkts = 0;
struct sk_buff *skb;
u16 ci;
int i;
while (sq->cc != sq->pc) {
@@ -521,8 +522,11 @@ static void mlx5e_free_txq_sq_descs(struct mlx5e_sq *sq)
}
dev_kfree_skb_any(skb);
npkts++;
nbytes += wi->num_bytes;
sq->cc += wi->num_wqebbs;
}
netdev_tx_completed_queue(sq->txq, npkts, nbytes);
}
static void mlx5e_free_xdp_sq_descs(struct mlx5e_sq *sq)