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Message-ID: <77cf96b2-9a48-ae3f-f234-1c27186b1d3f@amd.com>
Date: Thu, 21 Dec 2023 10:25:41 -0800
From: Brett Creeley <bcreeley@....com>
To: Kai-Heng Feng <kai.heng.feng@...onical.com>, hkallweit1@...il.com,
 nic_swsd@...ltek.com
Cc: "David S. Miller" <davem@...emloft.net>,
 Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>,
 Paolo Abeni <pabeni@...hat.com>, netdev@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH] r8169: Fix PCI error on system resume


On 12/20/2023 8:43 PM, Kai-Heng Feng wrote:
> Caution: This message originated from an External Source. Use proper caution when opening attachments, clicking links, or responding.
> 
> 
> [  688.051096] r8169 0000:02:00.1 enp2s0f1: rtl_ep_ocp_read_cond == 0 (loop: 10, delay: 10000).
> [  688.175131] r8169 0000:02:00.1 enp2s0f1: Link is Down
> ...
> [  691.534611] r8169 0000:02:00.1 enp2s0f1: PCI error (cmd = 0x0407, status_errs = 0x0000)
> 
> Since increase the loop wait on rtl_ep_ocp_read_cond can eliminate the
> issue, so let rtl8168ep_driver_start() to wait a bit longer.
> 

This doesn't really describe what the issue is that you are fixing. I 
think a more clear commit message would be helpful. Also, why "30" loops?

Does this need a Fixes tag? If so the Fixes tag should be added and the 
subject line should start with: "[PATCH net]".

Otherwise, the subject line should start with: "[PATCH net-next]".

Thanks,

Brett
> Signed-off-by: Kai-Heng Feng <kai.heng.feng@...onical.com>
> ---
>   drivers/net/ethernet/realtek/r8169_main.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c
> index bb787a52bc75..81fd31f6fac4 100644
> --- a/drivers/net/ethernet/realtek/r8169_main.c
> +++ b/drivers/net/ethernet/realtek/r8169_main.c
> @@ -1211,7 +1211,7 @@ static void rtl8168ep_driver_start(struct rtl8169_private *tp)
>   {
>          r8168ep_ocp_write(tp, 0x01, 0x180, OOB_CMD_DRIVER_START);
>          r8168ep_ocp_write(tp, 0x01, 0x30, r8168ep_ocp_read(tp, 0x30) | 0x01);
> -       rtl_loop_wait_high(tp, &rtl_ep_ocp_read_cond, 10000, 10);
> +       rtl_loop_wait_high(tp, &rtl_ep_ocp_read_cond, 10000, 30);
>   }
> 
>   static void rtl8168_driver_start(struct rtl8169_private *tp)
> --
> 2.34.1
> 
> 

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