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(parent: b770fd8) | patch
USBNET: increase max rx/tx qlen for improving USB3 thoughtput
authorMing Lei <ming.lei@canonical.com>
Thu, 25 Jul 2013 05:47:54 +0000 (13:47 +0800)
committerDavid S. Miller <davem@davemloft.net>
Sun, 28 Jul 2013 03:10:57 +0000 (20:10 -0700)
commit86b2a10fc84f4763ec0191abe29d536524238130
tree1ef4704e1598a67974e6ca000b1cb1d2a4105c53tree | snapshot
parentb770fd8618b745e0fdc6cf3314381bac908418e4commit | diff
USBNET: increase max rx/tx qlen for improving USB3 thoughtput

The default RX_QLEN()/TX_QLEN() didn't consider super speed
USB device, so only max 4 URBs are scheduled at the same time
for tx/rx, then USB3 NIC can't perform very well.

With this patch, both rx and tx thoughput are increased more than
100Mbps when doing iperf test on ax88179_178a USB 3.0 NIC.

Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/usb/usbnet.c diff | blob | history
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