lkml.org 
[lkml]   [2011]   [May]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: [PATCH 2/2] net/dl2k: Don't reconfigure link @100Mbps when disabling autoneg @1Gbps
Hi all,

Yes, right, I will send the updated patch together with the stmmac
update (if any).

I just hope that changing the netdev_private fields without committing
to hardware and before calling netif_carrier_off() will not create too
much confusion. I don't think so, but I still wish I could test.

Regards,

--
David Decotigny



On Tue, May 10, 2011 at 11:55 AM, Ben Hutchings
<bhutchings@solarflare.com> wrote:
> On Mon, 2011-05-09 at 17:19 -0700, David Decotigny wrote:
>> The initial version of the driver used to force the link to 100Mbps
>> when auto-negociation was disabled on a 1Gbps link, ignoring the
>> requested link speed. Instead, this change refuses to change anything
>> when it is asked to configure the link speed at 1Gbps without
>> auto-negociation, but acts as requested in all the other cases.
>>
>> IMPORTANT: Previously, the return value from mii_set_media() was
>>            ignored. This patch uses it for its own return value.
>>
>> Tested: module compiling, NOT tested on real hardware.
>> Signed-off-by: David Decotigny <decot@google.com>
> [...]
>
> The changes to validation look fine.  However, I noticed that there's a
> call to netif_carrier_off() at the top of this function.  This means
> that in the error and shortcut cases, the interface will be left
> disabled!  It's an existing bug but might be made slightly worse by this
> change.
>
> Please also move the call to netif_carrier_off() down to the end, just
> before the call to mii_set_media() which actually alters the link.
>
> Ben.
>
> --
> Ben Hutchings, Senior Software Engineer, Solarflare
> Not speaking for my employer; that's the marketing department's job.
> They asked us to note that Solarflare product names are trademarked.
>
>
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2011-05-11 00:17    [W:0.092 / U:0.020 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site