Message-ID: <8e05cf636937ad59e32b4ae7f1e7e8732c694421.camel@redhat.com>
Subject: Re: [net PATCH] octeontx2-af: Unlock contexts in the queue context
 cache in case of fault detection
From:   Paolo Abeni <pabeni@redhat.com>
To:     Sai Krishna <saikrishnag@marvell.com>, davem@davemloft.net,
        edumazet@google.com, kuba@kernel.org, netdev@vger.kernel.org,
        linux-kernel@vger.kernel.org, sgoutham@marvell.com,
        sumang@marvell.com
Date:   Thu, 23 Feb 2023 10:52:12 +0100
In-Reply-To: <20230222065921.1852686-1-saikrishnag@marvell.com>
References: <20230222065921.1852686-1-saikrishnag@marvell.com>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
User-Agent: Evolution 3.46.4 (3.46.4-1.fc37) 
MIME-Version: 1.0
Precedence: bulk

On Wed, 2023-02-22 at 12:29 +0530, Sai Krishna wrote:
> From: Suman Ghosh <sumang@marvell.com>
>=20
> NDC caches contexts of frequently used queue's (Rx and Tx queues)
> contexts. Due to a HW errata when NDC detects fault/poision while
> accessing contexts it could go into an illegal state where a cache
> line could get locked forever. To makesure all cache lines in NDC
> are available for optimum performance upon fault/lockerror/posion
> errors scan through all cache lines in NDC and clear the lock bit.
>=20
> Fixes: 4a3581cd5995 ("octeontx2-af: NPA AQ instruction enqueue support")
> Signed-off-by: Suman Ghosh <sumang@marvell.com>
> Signed-off-by: Sunil Kovvuri Goutham <sgoutham@marvell.com>
> Signed-off-by: Sai Krishna <saikrishnag@marvell.com>

After the net-next merge, this does not apply cleanly to net anymore.

Please rebase and re-post, thanks!

Paolo