net: fs_enet: Implement NETIF_F_SG feature

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Freescale ethernet controllers have the capability to re-assemble fragmented
data into a single ethernet frame. This patch uses this capability and
implements NETIP_F_SG feature into the fs_enet ethernet driver.

On a MPC885, I get 53% performance improvement on a ftp transfer of a 15Mb file:
  * Without the patch : 2,8 Mbps
  * With the patch : 4,3 Mbps

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>

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LEROY Christophe 2015-02-02 18:06:54 +01:00 • committed by David S. Miller

parent 2bd82484bb

commit 4fc9b87bae

2 changed files with 66 additions and 30 deletions

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95

drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c

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1

drivers/net/ethernet/freescale/fs_enet/fs_enet.h

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