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629667
2011 Jul 17
3
[PATCHv9] vhost: experimental tx zero-copy support
From: Shirley Ma <mashirle at us.ibm.com>
This adds experimental zero copy support in vhost-net,
disabled by default. To enable, set the zerocopytx
module option to 1.
This patch maintains the outstanding userspace buffers in the
sequence it is delivered to vhost. The outstanding userspace buffers
will be marked as done once the lower device buffers DMA has finished.
This is monitored