linux-kernel - Re: [PATCH] r8169: fix a bug in rtl8169_init

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Message-ID: <AANLkTike8Ggtwjrx64MR4QiPtn1vMF+CVWFJbDrNaVrR@mail.gmail.com>
Date:	Sat, 19 Mar 2011 19:20:09 +0200
From:	Anca Emanuel <anca.emanuel@...il.com>
To:	Eric Dumazet <eric.dumazet@...il.com>
Cc:	Oliver Neukum <oliver@...kum.org>, piotr@...owicz.com,
	LKML <linux-kernel@...r.kernel.org>, netdev@...r.kernel.org,
	Francois Romieu <romieu@...zoreil.com>,
	David Miller <davem@...emloft.net>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [PATCH] r8169: fix a bug in rtl8169_init_phy()

On Sat, Mar 19, 2011 at 5:39 PM, Eric Dumazet <eric.dumazet@...il.com> wrote:
> Le samedi 19 mars 2011 à 16:33 +0100, Eric Dumazet a écrit :
>> Le samedi 19 mars 2011 à 16:31 +0100, Oliver Neukum a écrit :
>> > Am Samstag, 19. März 2011, 16:18:50 schrieb Eric Dumazet:
>> >
>> > > Problem comes from commit 54405cde762408b00a445466a40da4f7f33a8479
>> > > (r8169: support control of advertising.)
>> > >
>> > > Reverting it brings back NIC for me
>> >
>> > Odd. It worked for me. Are you testing on a gigabit switch? Could you send
>> > me dmesg? Does it work if you use ethtool to advertise a lower speed?
>> >
>> >     Regards
>> >             Oliver
>>
>> I found the bug, I am sending a patch in two minutes.
>>
>
> Here it is
>
> [PATCH] r8169: fix a bug in rtl8169_init_phy()
>
> commit 54405cde7624 (r8169: support control of advertising.)
> introduced a bug in rtl8169_init_phy()
>
> Reported-by: Piotr Hosowicz <piotr@...owicz.com>
> Signed-off-by: Eric Dumazet <eric.dumazet@...il.com>
> Cc: Oliver Neukum <oliver@...kum.org>
> Cc: Francois Romieu <romieu@...zoreil.com>
> ---
>  drivers/net/r8169.c |    4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/net/r8169.c b/drivers/net/r8169.c
> index 5e40351..493b0de 100644
> --- a/drivers/net/r8169.c
> +++ b/drivers/net/r8169.c
> @@ -2685,9 +2685,9 @@ static void rtl8169_init_phy(struct net_device *dev, struct rtl8169_private *tp)
>        rtl8169_set_speed(dev, AUTONEG_ENABLE, SPEED_1000, DUPLEX_FULL,
>                ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full |
>                ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full |
> -               tp->mii.supports_gmii ?
> +               (tp->mii.supports_gmii ?
>                        ADVERTISED_1000baseT_Half |
> -                       ADVERTISED_1000baseT_Full : 0);
> +                       ADVERTISED_1000baseT_Full : 0));
>
>        if (RTL_R8(PHYstatus) & TBI_Enable)
>                netif_info(tp, link, dev, "TBI auto-negotiating\n");
>
>
>

Thanks Eric, It Woks now !

My r8169 was not working see:
https://lkml.org/lkml/2011/3/19/19

Tested-by: Anca Emanuel <anca.emanuel@...il.com>
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