From: Simon Horman <simon.horman@corigine.com>
To: daire.mcnamara@microchip.com
Cc: nicolas.ferre@microchip.com, claudiu.beznea@microchip.com,
davem@davemloft.net, edumazet@google.com, kuba@kernel.org,
pabeni@redhat.com, netdev@vger.kernel.org,
conor.dooley@microchip.com
Subject: Re: [PATCH v4 1/1] net: macb: Shorten max_tx_len to 4KiB - 56 on mpfs
Date: Fri, 12 May 2023 17:11:18 +0200 [thread overview]
Message-ID: <ZF5XFhm6urnFEqLH@corigine.com> (raw)
In-Reply-To: <20230512122032.2902335-2-daire.mcnamara@microchip.com>
On Fri, May 12, 2023 at 01:20:32PM +0100, daire.mcnamara@microchip.com wrote:
> From: Daire McNamara <daire.mcnamara@microchip.com>
>
> On mpfs, with SRAM configured for 4 queues, setting max_tx_len
> to GEM_TX_MAX_LEN=0x3f0 results multiple AMBA errors.
> Setting max_tx_len to (4KiB - 56) removes those errors.
>
> The details are described in erratum 1686 by Cadence
>
> The max jumbo frame size is also reduced for mpfs to (4KiB - 56).
>
> Signed-off-by: Daire McNamara <daire.mcnamara@microchip.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
next prev parent reply other threads:[~2023-05-12 15:11 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-12 12:20 [PATCH v4 0/1] Adjust macb max_tx_len for mpfs daire.mcnamara
2023-05-12 12:20 ` [PATCH v4 1/1] net: macb: Shorten max_tx_len to 4KiB - 56 on mpfs daire.mcnamara
2023-05-12 12:23 ` Conor Dooley
2023-05-12 15:11 ` Simon Horman [this message]
2023-05-13 8:51 ` Claudiu.Beznea
2023-05-13 19:50 ` [PATCH v4 0/1] Adjust macb max_tx_len for mpfs patchwork-bot+netdevbpf
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