Hi, Jiayu DPDK convention prefers to append the doc update with the feature patch, and update the release note in the same patch as well.
Thanks, Xiaolong On 03/17, Jiayu Hu wrote: >Signed-off-by: Jiayu Hu <jiayu...@intel.com> >--- > doc/guides/nics/vhost.rst | 14 ++++++++++++++ > 1 file changed, 14 insertions(+) > >diff --git a/doc/guides/nics/vhost.rst b/doc/guides/nics/vhost.rst >index 912f4bd..f0d9520 100644 >--- a/doc/guides/nics/vhost.rst >+++ b/doc/guides/nics/vhost.rst >@@ -25,6 +25,15 @@ Currently, the vhost PMD provides the basic functionality >of packet reception, t > > * Don't need to stop RX/TX, when the user wants to stop a guest or a > virtio-net driver on guest. > >+* It supports to offload large data movement in Tx operations from the >+ CPU to the I/OAT device for every queue. Note that I/OAT acceleration >+ is just enabled for split rings. In addition, a queue can only use one >+ I/OAT device, and I/OAT devices cannot be shared among vhost ports and >+ queues. That is, an I/OAT device can only be used by one queue at a >+ time. Moreover, users cannot enable I/OAT acceleration, if iommu or >+ postcopy live-migration is enabled; when enabling I/OAT acceleration >+ for a queue, Rx interrupt is not supported. >+ > Vhost PMD arguments > ------------------- > >@@ -54,6 +63,11 @@ The user can specify below arguments in `--vdev` option. > It is used to enable tso support in vhost library. > (Default: 0 (disabled)) > >+#. ``dmas``: >+ >+ It is used to specify DMA engines used to accelerate data movement >+ in Tx operations for queues. >+ > Vhost PMD event handling > ------------------------ > >-- >2.7.4 >
