[U-Boot] [PATCH] net: Fix delay in net_retry test

[Joe Hershberger]

Hi Stefan,

On Mon, Dec 21, 2015 at 4:31 PM, Joe Hershberger <joe.hershberger at ni.com> wrote:
> Introduced in 45b4773 (net/arp: account for ARP delay, avoid duplicate packets on timeout)
>
> Check the arp timeout and adjust the timeout start time before the call
> to eth_recv() so that the sandbox driver has the opportunity to adjust
> the sandbox timer after the new start time has been recorded.

This had to change to allow sandbox tests to work. Please verify that
it does not impair the behavior you intended with your patch.

> Also, change the adjustment amount by 11 seconds instead of exactly the
> 10 seconds that the ping timout is expecting since the timeout check is
> looking for the time elapsed to be greater than but not equal to the
> specified delay.
>
> Signed-off-by: Joe Hershberger <joe.hershberger at ni.com>
>
> ---
>
>  drivers/net/sandbox.c | 2 +-
>  net/net.c             | 7 +++----
>  2 files changed, 4 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/net/sandbox.c b/drivers/net/sandbox.c
> index 6763a24..d538d37 100644
> --- a/drivers/net/sandbox.c
> +++ b/drivers/net/sandbox.c
> @@ -157,7 +157,7 @@ static int sb_eth_recv(struct udevice *dev, int flags, uchar **packetp)
>         struct eth_sandbox_priv *priv = dev_get_priv(dev);
>
>         if (skip_timeout) {
> -               sandbox_timer_add_offset(10000UL);
> +               sandbox_timer_add_offset(11000UL);
>                 skip_timeout = false;
>         }
>
> diff --git a/net/net.c b/net/net.c
> index 4d5746a..fba111e 100644
> --- a/net/net.c
> +++ b/net/net.c
> @@ -542,6 +542,9 @@ restart:
>  #ifdef CONFIG_SHOW_ACTIVITY
>                 show_activity(1);
>  #endif
> +               if (arp_timeout_check() > 0)
> +                       time_start = get_timer(0);
> +
>                 /*
>                  *      Check the ethernet for a new packet.  The ethernet
>                  *      receive routine will process it.
> @@ -570,10 +573,6 @@ restart:
>                         goto done;
>                 }
>
> -               if (arp_timeout_check() > 0) {
> -                   time_start = get_timer(0);
> -               }
> -
>                 /*
>                  *      Check for a timeout, and run the timeout handler
>                  *      if we have one.
> --
> 2.5.0
>
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