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Message-ID: <CAMSo37UzU9WrQOQVo=Bb-LfOwS=GJrsSLMgGAwLY7JoGQ9ap7g@mail.gmail.com>
Date: Thu, 13 Jun 2024 19:46:57 +0800
From: Yongqin Liu <yongqin.liu@...aro.org>
To: Jose Ignacio Tornos Martinez <jtornosm@...hat.com>
Cc: amit.pundir@...aro.org, davem@...emloft.net, edumazet@...gle.com, 
	inventor500@...aldi.net, jstultz@...gle.com, kuba@...nel.org, 
	linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org, 
	netdev@...r.kernel.org, pabeni@...hat.com, stable@...r.kernel.org, 
	sumit.semwal@...aro.org
Subject: Re: [PATCH] net: usb: ax88179_178a: fix link status when link is set
 to down/up

Hi, Jose

On Thu, 13 Jun 2024 at 17:59, Jose Ignacio Tornos Martinez
<jtornosm@...hat.com> wrote:
>
> Hello again,
>
> There was a problem copying the patch, sorry, here the good one:

Thanks very much for the work!

I will test it tomorrow, and let you know the result then.

Best regards,
Yongqin Liu
>
> $ git diff drivers/net/usb/ax88179_178a.c
> diff --git a/drivers/net/usb/ax88179_178a.c b/drivers/net/usb/ax88179_178a.c
> index 51c295e1e823..60357796be99 100644
> --- a/drivers/net/usb/ax88179_178a.c
> +++ b/drivers/net/usb/ax88179_178a.c
> @@ -174,7 +174,6 @@ struct ax88179_data {
>         u32 wol_supported;
>         u32 wolopts;
>         u8 disconnecting;
> -       u8 initialized;
>  };
>
>  struct ax88179_int_data {
> @@ -327,7 +326,8 @@ static void ax88179_status(struct usbnet *dev, struct urb *urb)
>
>         if (netif_carrier_ok(dev->net) != link) {
>                 usbnet_link_change(dev, link, 1);
> -               netdev_info(dev->net, "ax88179 - Link status is: %d\n", link);
> +               if (!link)
> +                       netdev_info(dev->net, "ax88179 - Link status is: %d\n", link);
>         }
>  }
>
> @@ -1543,6 +1543,7 @@ static int ax88179_link_reset(struct usbnet *dev)
>                          GMII_PHY_PHYSR, 2, &tmp16);
>
>         if (!(tmp16 & GMII_PHY_PHYSR_LINK)) {
> +               netdev_info(dev->net, "ax88179 - Link status is: 0\n");
>                 return 0;
>         } else if (GMII_PHY_PHYSR_GIGA == (tmp16 & GMII_PHY_PHYSR_SMASK)) {
>                 mode |= AX_MEDIUM_GIGAMODE | AX_MEDIUM_EN_125MHZ;
> @@ -1580,6 +1581,8 @@ static int ax88179_link_reset(struct usbnet *dev)
>
>         netif_carrier_on(dev->net);
>
> +       netdev_info(dev->net, "ax88179 - Link status is: 1\n");
> +
>         return 0;
>  }
>
> @@ -1678,12 +1681,21 @@ static int ax88179_reset(struct usbnet *dev)
>
>  static int ax88179_net_reset(struct usbnet *dev)
>  {
> -       struct ax88179_data *ax179_data = dev->driver_priv;
> +       u16 tmp16;
>
> -       if (ax179_data->initialized)
> +       ax88179_read_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID, GMII_PHY_PHYSR,
> +                        2, &tmp16);
> +       if (tmp16) {
> +               ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
> +                                2, 2, &tmp16);
> +               if (!(tmp16 & AX_MEDIUM_RECEIVE_EN)) {
> +                       tmp16 |= AX_MEDIUM_RECEIVE_EN;
> +                       ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
> +                                         2, 2, &tmp16);
> +               }
> +       } else {
>                 ax88179_reset(dev);
> -       else
> -               ax179_data->initialized = 1;
> +       }
>
>         return 0;
>  }
>
> Best regards
> José Ignacio
>


-- 
Best Regards,
Yongqin Liu
---------------------------------------------------------------
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