linux/drivers/net/ethernet/atheros/atl1c
Eric Dumazet 7b70176421 atl1c: Fix misuse of netdev_alloc_skb in refilling rx ring
On Mon, 2013-07-29 at 08:30 -0700, Eric Dumazet wrote:
> On Mon, 2013-07-29 at 13:09 +0100, Luis Henriques wrote:
>
> >
> > I confirm that I can't reproduce the issue using this patch.
> >
>
> Thanks, I'll send a polished patch, as this one had an error if
> build_skb() returns NULL (in case sk_buff allocation fails)

Please try the following patch : It should use 2K frags instead of 4K
for normal 1500 mtu

Thanks !

[PATCH] atl1c: use custom skb allocator

We had reports ( https://bugzilla.kernel.org/show_bug.cgi?id=54021 )
that using high order pages for skb allocations is problematic for atl1c

We do not know exactly what the problem is, but we suspect that crossing
4K pages is not well supported by this hardware.

Use a custom allocator, using page allocator and 2K fragments for
optimal stack behavior. We might make this allocator generic
in future kernels.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Luis Henriques <luis.henriques@canonical.com>
Cc: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-07-30 18:12:07 -07:00
..
atl1c_ethtool.c atl1c: refine SERDES-clock related code 2012-04-26 05:03:32 -04:00
atl1c_hw.c treewide: Fix typos in kernel messages 2013-03-31 17:50:31 +02:00
atl1c_hw.h atl1c: fix issue of io access mode for AR8152 v2.1 2012-07-20 11:21:18 -07:00
atl1c_main.c atl1c: Fix misuse of netdev_alloc_skb in refilling rx ring 2013-07-30 18:12:07 -07:00
atl1c.h atl1c: Fix misuse of netdev_alloc_skb in refilling rx ring 2013-07-30 18:12:07 -07:00
Makefile