On Tue, Mar 4, 2014 at 4:01 AM, Hayes Wang <hayeswang@xxxxxxxxxxx> wrote:
> Reset and reinitialize the device when the tx timeout occurs.
Hayes,
I believe this patch was dropped after the series was split.
Can you please repost this patch by itself?
(and fix the "function" typo in the patch header)
>
> Signed-off-by: Hayes Wang <hayeswang@xxxxxxxxxxx>
> ---
> drivers/net/usb/r8152.c | 41 +++++++++++++++++++++++++++++++----------
> 1 file changed, 31 insertions(+), 10 deletions(-)
>
> diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
> index e04fcbd..23e03a6 100644
> --- a/drivers/net/usb/r8152.c
> +++ b/drivers/net/usb/r8152.c
> @@ -1791,16 +1791,6 @@ static void rtl_drop_queued_tx(struct r8152 *tp)
> }
> }
>
> -static void rtl8152_tx_timeout(struct net_device *netdev)
> -{
> - struct r8152 *tp = netdev_priv(netdev);
> - int i;
> -
> - netif_warn(tp, tx_err, netdev, "Tx timeout\n");
> - for (i = 0; i < RTL8152_MAX_TX; i++)
> - usb_unlink_urb(tp->tx_info[i].urb);
> -}
> -
> static void rtl8152_set_rx_mode(struct net_device *netdev)
> {
> struct r8152 *tp = netdev_priv(netdev);
> @@ -3177,6 +3167,37 @@ out:
> return res;
> }
>
> +static void rtl8152_tx_timeout(struct net_device *netdev)
> +{
> + struct r8152 *tp = netdev_priv(netdev);
> +
> + netif_warn(tp, tx_err, netdev, "Tx timeout\n");
> +
> + if (usb_autopm_get_interface(tp->intf) < 0)
> + return;
> +
> + netif_stop_queue(netdev);
> + clear_bit(WORK_ENABLE, &tp->flags);
> + usb_kill_urb(tp->intr_urb);
> + cancel_delayed_work_sync(&tp->schedule);
> + tp->rtl_ops.down(tp);
> +
> + usb_reset_device(tp->udev);
> +
> + tp->rtl_ops.init(tp);
> + tp->rtl_ops.up(tp);
> + rtl8152_set_speed(tp, AUTONEG_ENABLE,
> + tp->mii.supports_gmii ? SPEED_1000 : SPEED_100,
> + DUPLEX_FULL);
> + tp->speed = 0;
Nit: Could rtl_ops.up() set speed since it appears to be changing the
state of the link?
rtl8152_open() uses a remarkably similar code sequence. Is there an
opportunity to refactor and make sure this sequence is consistent?
(different patch, not this one)
cheers,
grant
> + netif_carrier_off(netdev);
> + netif_start_queue(netdev);
> + set_bit(WORK_ENABLE, &tp->flags);
> + usb_submit_urb(tp->intr_urb, GFP_KERNEL);
> +
> + usb_autopm_put_interface(tp->intf);
> +}
> +
> static const struct net_device_ops rtl8152_netdev_ops = {
> .ndo_open = rtl8152_open,
> .ndo_stop = rtl8152_close,
> --
> 1.8.4.2
>
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