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From: Thomas Monjalon <thomas@monjalon.net>
To: Dmitry Kozlyuk <dkozlyuk@nvidia.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>, Raslan Darawsheh <rasland@nvidia.com>,
Matan Azrad <matan@nvidia.com>, Slava Ovsiienko <viacheslavo@nvidia.com>
Subject: Re: [PATCH] common/mlx5: fix MR lookup on slow path
Date: Fri, 26 Nov 2021 13:28:48 +0100
Message-ID: <6913098.DbvkNnyOu5@thomas>
In-Reply-To: <DM6PR12MB37530FB8BBA011D21F005825DF639@DM6PR12MB3753.namprd12.prod.outlook.com>
References: <20211125202044.3483813-1-dkozlyuk@nvidia.com>
<DM6PR12MB37530FB8BBA011D21F005825DF639@DM6PR12MB3753.namprd12.prod.outlook.com>
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> > Memory region (MR) was being looked up incorrectly for the data address of
> > an externally-attached mbuf.
> > A search was attempted for the mempool of the mbuf, while mbuf data
> > address does not belong to this mempool in case of externally-attached mbuf.
> > Only attempt the search:
> > 1) for not externally-attached mbufs;
> > 2) for mbufs coming from MPRQ mempool;
> > 3) for externally-attached mbufs from mempools
> > with pinned external buffers.
> >
> > Fixes: 08ac03580ef2 ("common/mlx5: fix mempool registration")
> >
> > Signed-off-by: Dmitry Kozlyuk <dkozlyuk@nvidia.com>
> > Reviewed-by: Matan Azrad <matan@nvidia.com>
> Acked-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>
Applied as last-minute critical fix.