leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

net/mlx5e: kTLS, Fix missing SQ edge fill

Browse Source 
Before posting the context params WQEs, make sure there is enough
contiguous room for them, and fill frag edge if needed.

When posting only a nop, no need for room check, as it needs a single
WQEBB, meaning no contiguity issue.

Fixes: d2ead1f360 ("net/mlx5e: Add kTLS TX HW offload support")
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
Tariq Toukan 2019-10-07 13:59:11 +03:00 committed by Saeed Mahameed
parent b61b24bd13
commit 700ec49742
1 changed files with 20 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

28
drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_tx.c
View File

@ -168,6 +168,14 @@ mlx5e_ktls_tx_post_param_wqes(struct mlx5e_txqsq *sq,
bool skip_static_post, bool fence_first_post)
{
bool progress_fence = skip_static_post || !fence_first_post;
struct mlx5_wq_cyc *wq = &sq->wq;
u16 contig_wqebbs_room, pi;
pi = mlx5_wq_cyc_ctr2ix(wq, sq->pc);
contig_wqebbs_room = mlx5_wq_cyc_get_contig_wqebbs(wq, pi);
if (unlikely(contig_wqebbs_room <
MLX5E_KTLS_STATIC_WQEBBS + MLX5E_KTLS_PROGRESS_WQEBBS))
mlx5e_fill_sq_frag_edge(sq, wq, pi, contig_wqebbs_room);
if (!skip_static_post)
post_static_params(sq, priv_tx, fence_first_post);
@ -355,10 +363,20 @@ mlx5e_ktls_tx_handle_ooo(struct mlx5e_ktls_offload_context_tx *priv_tx,
stats->tls_ooo++;
num_wqebbs = MLX5E_KTLS_STATIC_WQEBBS + MLX5E_KTLS_PROGRESS_WQEBBS +
(info.nr_frags ? info.nr_frags * MLX5E_KTLS_DUMP_WQEBBS : 1);
tx_post_resync_params(sq, priv_tx, info.rcd_sn);
/* If no dump WQE was sent, we need to have a fence NOP WQE before the
* actual data xmit.
*/
if (!info.nr_frags) {
tx_post_fence_nop(sq);
return skb;
}
num_wqebbs = info.nr_frags * MLX5E_KTLS_DUMP_WQEBBS;
pi = mlx5_wq_cyc_ctr2ix(wq, sq->pc);
contig_wqebbs_room = mlx5_wq_cyc_get_contig_wqebbs(wq, pi);
if (unlikely(contig_wqebbs_room < num_wqebbs))
mlx5e_fill_sq_frag_edge(sq, wq, pi, contig_wqebbs_room);
@ -368,12 +386,6 @@ mlx5e_ktls_tx_handle_ooo(struct mlx5e_ktls_offload_context_tx *priv_tx,
if (tx_post_resync_dump(sq, &info.frags[i], priv_tx->tisn, !i))
goto err_out;
/* If no dump WQE was sent, we need to have a fence NOP WQE before the
* actual data xmit.
*/
if (!info.nr_frags)
tx_post_fence_nop(sq);
return skb;
err_out: