[dpdk-dev] [PATCH] examples/vhost: Support jumbo frame in user space vhost

Thomas Monjalon thomas.monjalon at 6wind.com
Mon Aug 25 17:12:56 CEST 2014

> This patch support mergeable RX feature and thus support jumbo frame RX and TX
> in user space vhost(as virtio backend).
> On RX, it secures enough room from vring to accommodate one complete scattered
> packet which is received by PMD from physical port, and then copy data from
> mbuf to vring buffer, possibly across a few vring entries and descriptors.
> On TX, it gets a jumbo frame, possibly described by a few vring descriptors which
> are chained together with the flags of 'NEXT', and then copy them into one scattered
> packet and TX it to physical port through PMD.
> Signed-off-by: Changchun Ouyang <changchun.ouyang at intel.com>
> Acked-by: Huawei Xie <huawei.xie at intel.com>

Applied for version 1.7.1.


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