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Message-ID: <20231001122355.GN92317@kernel.org>
Date: Sun, 1 Oct 2023 14:23:55 +0200
From: Simon Horman <horms@...nel.org>
To: Markus Schneider-Pargmann <msp@...libre.com>
Cc: Marc Kleine-Budde <mkl@...gutronix.de>,
Chandrasekar Ramakrishnan <rcsekar@...sung.com>,
Wolfgang Grandegger <wg@...ndegger.com>,
Vincent MAILHOL <mailhol.vincent@...adoo.fr>,
"David S . Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>, linux-can@...r.kernel.org,
netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
Julien Panis <jpanis@...libre.com>, Judith Mendez <jm@...com>
Subject: Re: [PATCH v6 06/14] can: m_can: Add rx coalescing ethtool support
On Fri, Sep 29, 2023 at 04:12:56PM +0200, Markus Schneider-Pargmann wrote:
> Add the possibility to set coalescing parameters with ethtool.
>
> rx-frames-irq and rx-usecs-irq can only be set and unset together as the
> implemented mechanism would not work otherwise. rx-frames-irq can't be
> greater than the RX FIFO size.
>
> Also all values can only be changed if the chip is not active.
>
> Polling is excluded from irq coalescing support.
>
> Signed-off-by: Markus Schneider-Pargmann <msp@...libre.com>
Reviewed-by: Simon Horman <horms@...nel.org>
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