[dpdk-dev] [PATCH 0/4] make vhost PMD available for secondary processes

[Itsuro ODA]

Hi,

I will fix to add signed-off-by and correct spelling error
according to test-report at dpdk.
Please check the content until then.

Thanks.

On Wed,  8 Jan 2020 15:25:06 +0900
oda at valinux.co.jp wrote:

> From: Itsuro Oda <oda at valinux.co.jp>
> 
> vhost PMD has not been available for secondary processes since
> DPDK v18.11.  (https://bugs.dpdk.org/show_bug.cgi?id=194)
> (for a long term !)
> This series of patches intend to make vhost PMD available for
> secondary processes.
> Because now setting vhost driver to communicate with a vhost-user
> master (ex. Qemu) is accomplished by the probe function of the
> primary process, only the primary process can be a vhost-user
> slave.
> With this patch, setting vhost driver is delayed at eth_dev
> configuration in order to be able to set it from a secondary
> process. Because (in the first place,) setting vhost driver is not
> necessary to be done at probe (it is enough to be done up to eth_dev
> start), this fix is no problem for the primary process.
> There is a precondition that the same process has to operate
> a vhost interface from begining to end (eth_dev configuration to
> eth_dev close). (This patch leaves it to user's responsibility.)
> This precondition will not be a problem in most use cases
> (including SPP).
> 
> Itsuro Oda (4):
>   net/vhost: remove an unused member
>   net/vhost: allocate iface_name from heap
>   net/vhost: delay vhost driver setup
>   net/vhost: make secondary probe complete
> 
>  drivers/net/vhost/rte_eth_vhost.c | 152 +++++++++++++++++-------------
>  1 file changed, 88 insertions(+), 64 deletions(-)
> 
> -- 
> 2.17.0

-- 
Itsuro ODA <oda at valinux.co.jp>