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net/mlx5e: Update netdev txq on completions during closure 

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>
alistair/sunxi64-5.7-dsi
Moshe Shemesh 2020-04-07 17:38:28 +03:00 committed by Saeed Mahameed
parent 9ca415399d
commit 5e911e2c06
1 changed files with 6 additions and 3 deletions
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9
drivers/net/ethernet/mellanox/mlx5/core/en_tx.c
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@ -537,10 +537,9 @@ bool mlx5e_poll_tx_cq(struct mlx5e_cq *cq, int napi_budget)
void mlx5e_free_txqsq_descs(struct mlx5e_txqsq *sq)
{
struct mlx5e_tx_wqe_info *wi;
u32 dma_fifo_cc, nbytes = 0;
u16 ci, sqcc, npkts = 0;
struct sk_buff *skb;
u32 dma_fifo_cc;
u16 sqcc;
u16 ci;
int i;
sqcc = sq->cc;
@ -565,11 +564,15 @@ void mlx5e_free_txqsq_descs(struct mlx5e_txqsq *sq)
}
dev_kfree_skb_any(skb);
npkts++;
nbytes += wi->num_bytes;
sqcc += wi->num_wqebbs;
}
sq->dma_fifo_cc = dma_fifo_cc;
sq->cc = sqcc;
netdev_tx_completed_queue(sq->txq, npkts, nbytes);
}
#ifdef CONFIG_MLX5_CORE_IPOIB