vxge: Fix starvation of receive ring controller when blasted by short packets.
authorSreenivasa Honnur <Sreenivasa.Honnur@neterion.com>
Sun, 28 Mar 2010 22:08:30 +0000 (22:08 +0000)
committerDavid S. Miller <davem@davemloft.net>
Mon, 29 Mar 2010 23:57:21 +0000 (16:57 -0700)
commit3363276f1c420b7de92169ddabd2bb88aa26a7d6
treefa5a2439f59cc90f104d9baf546a5f1e83233f4c
parent18dec74c16abaa92d663dfef64ee6503e085be89
vxge: Fix starvation of receive ring controller when blasted by short packets.

- Fix starvation of receive ring controller when blasted by short packets. This was because the driver was posting 64 rxds initially while the ring controller
was expecting to read 256 replenished rxds. While the driver was coming up,
the internal rxd memory filled up the 64 buffers provided and the ring
controller was left waiting for the remaining 192 rxds to complete the write
back of completed rxds to the host and generation of an interrupt.

Signed-off-by: Sreenivasa Honnur <sreenivasa.honnur@neterion.com>
Signed-off-by: Ramkrishna Vepa <ram.vepa@neterion.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/vxge/vxge-config.c
drivers/net/vxge/vxge-main.c
drivers/net/vxge/vxge-traffic.h