Re: [PATCH net-next] net: macb: Reset TX when TX halt times out

From: Michal Swiatkowski
Date: Thu Mar 16 2023 - 06:54:38 EST


On Thu, Mar 16, 2023 at 02:05:54PM +0530, Harini Katakam wrote:
> From: Harini Katakam <harini.katakam@xxxxxxxxxx>
>
> Reset TX when halt times out i.e. disable TX, clean up TX BDs,
> interrupts (already done) and enable TX.
> This addresses the issue observed when iperf is run at 10Mps Half
> duplex where, after multiple collisions and retries, TX halts.
>
> Signed-off-by: Harini Katakam <harini.katakam@xxxxxxxxxx>
> Signed-off-by: Michal Simek <michal.simek@xxxxxxxxxx>
> Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@xxxxxxxxxx>
> ---
> drivers/net/ethernet/cadence/macb_main.c | 10 ++++++++--
> 1 file changed, 8 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
> index 96fd2aa9ee90..473c2d0174ad 100644
> --- a/drivers/net/ethernet/cadence/macb_main.c
> +++ b/drivers/net/ethernet/cadence/macb_main.c
> @@ -1021,6 +1021,7 @@ static void macb_tx_error_task(struct work_struct *work)
> struct sk_buff *skb;
> unsigned int tail;
> unsigned long flags;
> + bool halt_timeout = false;
RCT

Otherwise looks fine
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@xxxxxxxxxxxxxxx>

[...]

> --
> 2.17.1
>