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From: Ferruh Yigit <ferruh.yigit@intel.com>
To: Ciara Loftus <ciara.loftus@intel.com>, dev@dpdk.org
Subject: Re: [dpdk-dev] [PATCH v2] net/af_xdp: don't allow umem sharing for xsks with same ctx
Date: Tue, 13 Oct 2020 16:57:07 +0100	[thread overview]
Message-ID: <9ddb5852-f08a-fb91-2b77-08b2426ef08c@intel.com> (raw)
In-Reply-To: <20201013131008.4070-1-ciara.loftus@intel.com>

On 10/13/2020 2:10 PM, Ciara Loftus wrote:
> AF_XDP PMDs who wish to share a UMEM must have a unique context
> (ctx) ie. netdev,qid tuple. For instance, the following will not
> work since both PMDs' contexts are identical.
>    --vdev net_af_xdp0,iface=ens786f1,start_queue=0,shared_umem=1
>    --vdev net_af_xdp1,iface=ens786f1,start_queue=0,shared_umem=1
> Supporting this scenario would require locks, which would impact
> the performance of the more typical cases - xsks with different
> netdev,qid tuples.
 > Fixes: 74b46340e2d4 ("net/af_xdp: support shared UMEM")
> Signed-off-by: Ciara Loftus <ciara.loftus@intel.com>

Applied to dpdk-next-net/main, thanks.

      reply	other threads:[~2020-10-13 15:57 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-08  9:17 [dpdk-dev] [PATCH] net/af_xdp: Don't allow umem sharing for xsks with same netdev, qid Ciara Loftus
2020-10-08 11:55 ` Ferruh Yigit
2020-10-13  8:52 ` Ferruh Yigit
2020-10-13 13:37   ` Loftus, Ciara
2020-10-13 13:10 ` [dpdk-dev] [PATCH v2] net/af_xdp: don't allow umem sharing for xsks with same ctx Ciara Loftus
2020-10-13 15:57   ` Ferruh Yigit [this message]

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