[ovs-dev] [PATCH v3] netdev-dpdk: vhost: Fix txq enabling in the absence of notifications.

Flavio Leitner fbl at sysclose.org
Tue Mar 29 12:23:10 UTC 2016


On Tue, Mar 29, 2016 at 09:20:41AM +0300, Ilya Maximets wrote:
> According to QEMU documentation (docs/specs/vhost-user.txt) one queue
> should be enabled initially. More queues are enabled dynamically, by
> sending message VHOST_USER_SET_VRING_ENABLE.
> 
> Currently all queues in OVS disabled by default. This breaks above
> specification. So, queue #0 should be enabled by default to support
> QEMU versions less than 2.5 and fix probable issues if QEMU will not
> send VHOST_USER_SET_VRING_ENABLE for queue #0 according to documentation.
> Also this will fix currently broken vhost-cuse support in OVS.
> 
> Fixes: 585a5beaa2a4 ("netdev-dpdk: vhost-user: Fix sending packets to
>                       queues not enabled by guest.")
> Reported-by: Mauricio Vasquez B <mauricio.vasquezbernal at studenti.polito.it>
> Signed-off-by: Ilya Maximets <i.maximets at samsung.com>
> ---

Acked-by: Flavio Leitner <fbl at sysclose.org>





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