[PATCH] S2io: Multi buffer mode support

Hi,
This patch  provides dynamic two buffer-mode and 3 buffer-mode options.
Previously 2 buffer-mode was compilation option. Now with this patch applied
one can load driver in 2 buffer-mode with module-load parameter

ie.
#insmod s2io.ko rx_ring_mode=2

This patch also provides 3 buffer-mode which provides header separation
functionality. In 3 buffer-mode skb->data will have L2/L3/L4 headers and
"skb_shinfo(skb)->frag_list->data" will have have L4 payload.
one can load driver in 3 buffer-mode with same above module-load parameter

ie.
#insmod s2io.ko rx_ring_mode=3

Please review the patch.

Signed-off-by: Ananda Raju <ananda.raju@neterion.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>

1 files changed, 0 insertions, 11 deletions

diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index bb3bda312bbe..1958d9e16a3a 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -2258,17 +2258,6 @@ config S2IO_NAPI
 
           If in doubt, say N.
 
-config 2BUFF_MODE
-        bool "Use 2 Buffer Mode on Rx side."
-        depends on S2IO
-        ---help---
-        On enabling the 2 buffer mode, the received frame will be
-        split into 2 parts before being DMA'ed to the hosts memory.
-        The parts are the ethernet header and ethernet payload. 
-        This is useful on systems where DMA'ing to to unaligned 
-        physical memory loactions comes with a heavy price.
-        If not sure please say N.
-
 endmenu
 
 if !UML