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net/mlx5e: kTLS, Save by-value copy of the record frags 

Access the record fragments only under the TLS ctx lock.
In the resync flow, save a copy of them to be used when
preparing and posting the required DUMP WQEs.

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 2019-09-18 13:57:40 +03:00 committed by Saeed Mahameed
parent f45da3716f
commit 310d9b9d37
1 changed files with 4 additions and 4 deletions
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8
drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_tx.c
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@ -179,7 +179,7 @@ struct tx_sync_info {
u64 rcd_sn;
s32 sync_len;
int nr_frags;
skb_frag_t *frags[MAX_SKB_FRAGS];
skb_frag_t frags[MAX_SKB_FRAGS];
};
static bool tx_sync_info_get(struct mlx5e_ktls_offload_context_tx *priv_tx,
@ -212,11 +212,11 @@ static bool tx_sync_info_get(struct mlx5e_ktls_offload_context_tx *priv_tx,
get_page(skb_frag_page(frag));
remaining -= skb_frag_size(frag);
info->frags[i++] = frag;
info->frags[i++] = *frag;
}
/* reduce the part which will be sent with the original SKB */
if (remaining < 0)
skb_frag_size_add(info->frags[i - 1], remaining);
skb_frag_size_add(&info->frags[i - 1], remaining);
info->nr_frags = i;
out:
spin_unlock_irqrestore(&tx_ctx->lock, flags);
@ -365,7 +365,7 @@ mlx5e_ktls_tx_handle_ooo(struct mlx5e_ktls_offload_context_tx *priv_tx,
tx_post_resync_params(sq, priv_tx, info.rcd_sn);
for (i = 0; i < info.nr_frags; i++)
if (tx_post_resync_dump(sq, info.frags[i], priv_tx->tisn, !i))
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