]> git.proxmox.com Git - mirror_ubuntu-disco-kernel.git/commit
tg3: Add tx BD budgeting code
authorMatt Carlson <mcarlson@broadcom.com>
Wed, 27 Jul 2011 14:20:52 +0000 (14:20 +0000)
committerDavid S. Miller <davem@davemloft.net>
Thu, 28 Jul 2011 05:39:32 +0000 (22:39 -0700)
commit84b67b27e9531e9a70c9e8cd952d66c55f4d0ddb
treef082a966a82ebc803f1f4d7cfccf057b3b0a8017
parentd1a3b7377d3b6a01ec5f70adb32173b13233aabf
tg3: Add tx BD budgeting code

As the driver breaks large skb fragments into smaller submissions to the
hardware, there is a new danger that BDs might get exhausted before all
fragments have been mapped.  This patch adds code to make sure tx BDs
aren't oversubscribed and flag the condition if it happens.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/tg3.c