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

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Message-ID: <ZBL1X1U3BJEAEIrX@localhost.localdomain>
Date:   Thu, 16 Mar 2023 11:54:23 +0100
From:   Michal Swiatkowski <michal.swiatkowski@...ux.intel.com>
To:     Harini Katakam <harini.katakam@....com>
Cc:     nicolas.ferre@...rochip.com, davem@...emloft.net,
        claudiu.beznea@...rochip.com, kuba@...nel.org, edumazet@...gle.com,
        pabeni@...hat.com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, michal.simek@....com,
        harinikatakamlinux@...il.com
Subject: Re: [PATCH net-next] net: macb: Reset TX when TX halt times out

On Thu, Mar 16, 2023 at 02:05:54PM +0530, Harini Katakam wrote:
> From: Harini Katakam <harini.katakam@...inx.com>
> 
> 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@...inx.com>
> Signed-off-by: Michal Simek <michal.simek@...inx.com>
> Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@...inx.com>
> ---
>  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@...ux.intel.com>

[...]

> -- 
> 2.17.1
>