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From: Tiwei Bie <tiwei.bie@intel.com>
To: Andrew Rybchenko <arybchenko@solarflare.com>
Cc: Maxime Coquelin <maxime.coquelin@redhat.com>,
	Zhihong Wang <zhihong.wang@intel.com>,
	dev@dpdk.org, Dilshod Urazov <Dilshod.Urazov@oktetlabs.ru>,
	stable@dpdk.org
Subject: Re: [dpdk-stable] [PATCH 3/3] net/virtio: reject unsupported Rx multi queue modes
Date: Wed, 9 Oct 2019 16:43:41 +0800	[thread overview]
Message-ID: <20191009084341.GA32515@___> (raw)
In-Reply-To: <c9e81a56-337e-7116-fc8c-de00635b6181@solarflare.com>

On Wed, Oct 09, 2019 at 11:04:38AM +0300, Andrew Rybchenko wrote:
> On 10/8/19 8:46 AM, Tiwei Bie wrote:
> > On Tue, Oct 01, 2019 at 04:44:31PM +0100, Andrew Rybchenko wrote:
> > > From: Dilshod Urazov <Dilshod.Urazov@oktetlabs.ru>
> > > 
> > > This driver supports none of DCB, RSS or VMDQ modes,
> > > therefore must check and return error if configured incorrectly.
> > > 
> > > Fixes: c1f86306a026 ("virtio: add new driver")
> > > Cc: stable@dpdk.org
> > > 
> > > Signed-off-by: Dilshod Urazov <Dilshod.Urazov@oktetlabs.ru>
> > > Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
> > > ---
> > >   drivers/net/virtio/virtio_ethdev.c | 7 +++++++
> > >   1 file changed, 7 insertions(+)
> > > 
> > > diff --git a/drivers/net/virtio/virtio_ethdev.c b/drivers/net/virtio/virtio_ethdev.c
> > > index 7261109dd..0af4fc392 100644
> > > --- a/drivers/net/virtio/virtio_ethdev.c
> > > +++ b/drivers/net/virtio/virtio_ethdev.c
> > > @@ -2071,6 +2071,13 @@ virtio_dev_configure(struct rte_eth_dev *dev)
> > >   	PMD_INIT_LOG(DEBUG, "configure");
> > >   	req_features = VIRTIO_PMD_DEFAULT_GUEST_FEATURES;
> > > +	if (rxmode->mq_mode != ETH_MQ_RX_NONE) {
> > > +		PMD_DRV_LOG(ERR,
> > > +			"Unsupported Rx multi queue mode %d",
> > > +			rxmode->mq_mode);
> > > +		return -EINVAL;
> > > +	}
> > We need similar checks for Tx as well.
> 
> OK, I'll add.
> 
> However, I'm not 100% sure about RSS. Yes, I know that virtio has
> no RSS configuration support, but it looks possible to have multi queue
> in vhost-net case.

Yeah, it's possible to have MQ in virtio.
The RSS support in virtio is still WIP.
https://github.com/oasis-tcs/virtio-spec/issues/48


  reply	other threads:[~2019-10-09  8:46 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-01 15:44 [dpdk-stable] [PATCH 1/3] net/virtio: reject deferred start Rx queue setup Andrew Rybchenko
2019-10-01 15:44 ` [dpdk-stable] [PATCH 2/3] net/virtio: reject deferred start Tx " Andrew Rybchenko
2019-10-08  5:35   ` Tiwei Bie
2019-10-01 15:44 ` [dpdk-stable] [PATCH 3/3] net/virtio: reject unsupported Rx multi queue modes Andrew Rybchenko
2019-10-08  5:46   ` Tiwei Bie
2019-10-09  8:04     ` Andrew Rybchenko
2019-10-09  8:43       ` Tiwei Bie [this message]
2019-10-09  9:00         ` Andrew Rybchenko
2019-10-09 10:41           ` Tiwei Bie
2019-10-09 11:24             ` Andrew Rybchenko
2019-10-01 16:29 ` [dpdk-stable] [dpdk-dev] [PATCH 1/3] net/virtio: reject deferred start Rx queue setup Kevin Traynor
2019-10-01 16:39   ` Andrew Rybchenko
2019-10-09 12:32 ` [dpdk-stable] [PATCH v2 1/4] " Andrew Rybchenko
2019-10-09 12:32   ` [dpdk-stable] [PATCH v2 2/4] net/virtio: reject deferred start Tx " Andrew Rybchenko
2019-10-24  9:44     ` Maxime Coquelin
2019-10-09 12:32   ` [dpdk-stable] [PATCH v2 3/4] net/virtio: reject unsupported Rx multi queue modes Andrew Rybchenko
2019-10-24  9:44     ` Maxime Coquelin
2019-10-09 12:32   ` [dpdk-stable] [PATCH v2 4/4] net/virtio: reject unsupported Tx " Andrew Rybchenko
2019-10-24  9:44     ` Maxime Coquelin
2019-10-24  9:44   ` [dpdk-stable] [PATCH v2 1/4] net/virtio: reject deferred start Rx queue setup Maxime Coquelin
2019-10-24 10:19     ` Maxime Coquelin

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