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

[Itsuro ODA]

Hi Maxime,

Thank you for your reply and review.
I will make fixes of the patches according to your
indication and post them.

Thanks.
Itsuro Oda

On Tue, 4 Feb 2020 18:54:23 +0100
Maxime Coquelin <maxime.coquelin at redhat.com> wrote:

> Hi Itsuro,
> 
> On 1/20/20 3:17 AM, Itsuro ODA wrote:
> > Hi vhost PMD maitainers,
> > 
> > I have not got any feedback yet. 
> > Since this is the first time I submit a patch, something
> > may be wrong, would you tell me what should I do ?
> 
> Sorry for the delay, and thanks for the contribution.
> 
> You series does not apply properly on dpdk-next-virtio master branch:
> https://git.dpdk.org/next/dpdk-next-virtio
> 
> I will review it, so when doing v3, please rebase it.
> 
> More generally, you series comprises fixes (patch 2 to 4), and
> cleanup (patch 1).
> 
> Cleanup patch should be the last, in order to ease the backporting
> of the fixes to LTSes (we avoid backporting cleanup patches).
> 
> Regarding fixes patches, it should tag the faulty commit in
> master branch, and stable at dpdk.org should be Cc'ed.
> 
> Example of commit message with fixes tag:
> http://patches.dpdk.org/patch/63305/
> 
> Finally, when you'll post the v3, please prefix the patches subject
> with the revision number:
> 
> git format-patch --subject-prefix"PATCH v3" ...
> 
> Thanks,
> Maxime
> 
> > Thanks.
> > 
> > On Thu,  9 Jan 2020 08:22:05 +0900
> > Itsuro Oda <oda at valinux.co.jp> wrote:
> > 
> >> 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 beginning to end (from 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).
> >>
> >> v2:
> >> - add signed-off-by
> >> - fix spelling error
> >>
> >> 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>