summaryrefslogtreecommitdiffstats
path: root/net
diff options
context:
space:
mode:
authorShreyas Bhatewara <sbhatewara@vmware.com>2011-07-05 14:34:05 +0000
committerDavid S. Miller <davem@davemloft.net>2011-07-05 18:39:40 -0700
commit5318d809d7b4975ce5e5303e8508f89a5458c2b6 (patch)
tree2e676330331419d9bb2e3d17f2f97462df7ce548 /net
parent44661462ee1ee3c922754fc1f246867f0d01e7ea (diff)
downloadop-kernel-dev-5318d809d7b4975ce5e5303e8508f89a5458c2b6.zip
op-kernel-dev-5318d809d7b4975ce5e5303e8508f89a5458c2b6.tar.gz
vmxnet3: fix starving rx ring whenoc_skb kb fails
If the rx ring is completely empty, then the device may never fire an rx interrupt. Unfortunately, the rx interrupt is what triggers populating the rx ring with fresh buffers, so this will cause networking to lock up. This patch replenishes the skb in recv descriptor as soon as it is peeled off while processing rx completions. If the skb/buffer allocation fails, existing one is recycled and the packet in hand is dropped. This way none of the RX desc is ever left empty, thus avoiding starvation Signed-off-by: Scott J. Goldman <scottjg@vmware.com> Signed-off-by: Shreyas N Bhatewara <sbhatewara@vmware.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
0 files changed, 0 insertions, 0 deletions
OpenPOWER on IntegriCloud