[dpdk-stable] [PATCH v4] net/bnxt: fix crash after port stop/start

[Ajit Khaparde]

On Mon, Aug 23, 2021 at 8:49 AM Somnath Kotur
<somnath.kotur at broadcom.com> wrote:
>
> On chips like Thor, port stop/start sequence could result in a crash
> in the application. This is because of false detection of a bad
> opaque in the Rx completion and the subsequent kicking-in of the ring
> reset code to recover from the condition.
> The root cause being that the port stop/start would result in the HW
> starting with fresh values, while the driver internal tracker variable
> `rx_next_cons` is still pointing to a stale value.
> Fix this by resetting rx_next_cons to 0 in bnxt_init_one_rx_ring()
>
> Fixes: 03c8f2fe111c ("net/bnxt: detect bad opaque in Rx completion")
> Cc: stable at dpdk.org
>
> Signed-off-by: Somnath Kotur <somnath.kotur at broadcom.com>
> Reviewed-by: Kalesh AP <kalesh-anakkur.purayil at broadcom.com>
> Reviewed-by: Ajit Khaparde <ajit.khaparde at broadcom.com>
Thanks Ferruh.
Patch applied to dpdk-next-net-brcm