From: Simon Horman <simon.horman@corigine.com>
To: Sai Krishna <saikrishnag@marvell.com>
Cc: davem@davemloft.net, edumazet@google.com, kuba@kernel.org,
pabeni@redhat.com, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org, sgoutham@marvell.com,
sumang@marvell.com, richardcochran@gmail.com
Subject: Re: [net PATCH v3] octeontx2-af: Unlock contexts in the queue context cache in case of fault detection
Date: Tue, 7 Mar 2023 17:33:19 +0100 [thread overview]
Message-ID: <ZAdnT/D3PyjDxaK+@corigine.com> (raw)
In-Reply-To: <20230307104908.3391164-1-saikrishnag@marvell.com>
On Tue, Mar 07, 2023 at 04:19:08PM +0530, Sai Krishna wrote:
> From: Suman Ghosh <sumang@marvell.com>
>
> 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.
>
> 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>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
next prev parent reply other threads:[~2023-03-07 16:36 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-07 10:49 [net PATCH v3] octeontx2-af: Unlock contexts in the queue context cache in case of fault detection Sai Krishna
2023-03-07 16:33 ` Simon Horman [this message]
2023-03-09 2:32 ` Jakub Kicinski
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