From: Marc Kleine-Budde <mkl@pengutronix.de> To: Jeroen Hofstee <jhofstee@victronenergy.com>, linux-can@vger.kernel.org Cc: Oliver Hartkopp <socketcan@hartkopp.net>, Chen-Yu Tsai <wens@csie.org>, Jernej Skrabec <jernej.skrabec@siol.net>, "open list:NETWORKING DRIVERS" <netdev@vger.kernel.org>, "moderated list:ARM/Allwinner sunXi SoC support" <linux-arm-kernel@lists.infradead.org> Subject: Re: [PATCH] can: don't count arbitration lose as an error Date: Fri, 27 Nov 2020 11:30:15 +0100 [thread overview] Message-ID: <434167b4-c2df-02bf-8a9c-2d4716c5435f@pengutronix.de> (raw) In-Reply-To: <20201127095941.21609-1-jhofstee@victronenergy.com> [-- Attachment #1.1: Type: text/plain, Size: 1271 bytes --] On 11/27/20 10:59 AM, Jeroen Hofstee wrote: > Losing arbitration is normal in a CAN-bus network, it means that a > higher priority frame is being send and the pending message will be > retried later. Hence most driver only increment arbitration_lost, but > the sja1000 and sun4i driver also incremeant tx_error, causing errors > to be reported on a normal functioning CAN-bus. So stop counting them > as errors. Sounds plausible. > For completeness, the Kvaser USB hybra also increments the tx_error > on arbitration lose, but it does so in single shot. Since in that > case the message is not retried, that behaviour is kept. You mean only in one shot mode? What about one shot mode on the sja1000 cores? > Signed-off-by: Jeroen Hofstee <jhofstee@victronenergy.com> I've split this into two patches, and added Fixes: lines, and pushed this for now to linux-can/sja1000. https://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can.git/log/?h=sja1000 regards, Marc -- Pengutronix e.K. | Marc Kleine-Budde | Embedded Linux | https://www.pengutronix.de | Vertretung West/Dortmund | Phone: +49-231-2826-924 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | [-- Attachment #2: OpenPGP digital signature --] [-- Type: application/pgp-signature, Size: 488 bytes --]
WARNING: multiple messages have this Message-ID (diff)
From: Marc Kleine-Budde <mkl@pengutronix.de> To: Jeroen Hofstee <jhofstee@victronenergy.com>, linux-can@vger.kernel.org Cc: Oliver Hartkopp <socketcan@hartkopp.net>, Chen-Yu Tsai <wens@csie.org>, Jernej Skrabec <jernej.skrabec@siol.net>, "moderated list:ARM/Allwinner sunXi SoC support" <linux-arm-kernel@lists.infradead.org>, "open list:NETWORKING DRIVERS" <netdev@vger.kernel.org> Subject: Re: [PATCH] can: don't count arbitration lose as an error Date: Fri, 27 Nov 2020 11:30:15 +0100 [thread overview] Message-ID: <434167b4-c2df-02bf-8a9c-2d4716c5435f@pengutronix.de> (raw) In-Reply-To: <20201127095941.21609-1-jhofstee@victronenergy.com> [-- Attachment #1.1.1: Type: text/plain, Size: 1271 bytes --] On 11/27/20 10:59 AM, Jeroen Hofstee wrote: > Losing arbitration is normal in a CAN-bus network, it means that a > higher priority frame is being send and the pending message will be > retried later. Hence most driver only increment arbitration_lost, but > the sja1000 and sun4i driver also incremeant tx_error, causing errors > to be reported on a normal functioning CAN-bus. So stop counting them > as errors. Sounds plausible. > For completeness, the Kvaser USB hybra also increments the tx_error > on arbitration lose, but it does so in single shot. Since in that > case the message is not retried, that behaviour is kept. You mean only in one shot mode? What about one shot mode on the sja1000 cores? > Signed-off-by: Jeroen Hofstee <jhofstee@victronenergy.com> I've split this into two patches, and added Fixes: lines, and pushed this for now to linux-can/sja1000. https://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can.git/log/?h=sja1000 regards, Marc -- Pengutronix e.K. | Marc Kleine-Budde | Embedded Linux | https://www.pengutronix.de | Vertretung West/Dortmund | Phone: +49-231-2826-924 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | [-- Attachment #1.2: OpenPGP digital signature --] [-- Type: application/pgp-signature, Size: 488 bytes --] [-- Attachment #2: Type: text/plain, Size: 176 bytes --] _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2020-11-27 10:30 UTC|newest] Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-11-27 9:59 [PATCH] can: don't count arbitration lose as an error Jeroen Hofstee 2020-11-27 9:59 ` Jeroen Hofstee 2020-11-27 10:30 ` Marc Kleine-Budde [this message] 2020-11-27 10:30 ` Marc Kleine-Budde 2020-11-27 11:09 ` Jeroen Hofstee 2020-11-27 11:09 ` Jeroen Hofstee 2020-11-27 16:02 ` Jeroen Hofstee 2020-11-28 17:23 ` Oliver Hartkopp 2020-11-28 17:23 ` Oliver Hartkopp 2020-11-29 15:52 ` Jeroen Hofstee 2020-11-29 15:52 ` Jeroen Hofstee 2020-12-02 14:35 ` Oliver Hartkopp 2020-12-02 14:35 ` Oliver Hartkopp 2020-12-02 15:37 ` Jeroen Hofstee 2020-12-02 15:37 ` Jeroen Hofstee 2020-12-02 16:22 ` Oliver Hartkopp 2020-12-02 16:22 ` Oliver Hartkopp 2020-12-02 16:31 ` Jeroen Hofstee 2020-12-02 16:31 ` Jeroen Hofstee 2020-11-30 11:50 ` Marc Kleine-Budde 2020-11-30 11:50 ` Marc Kleine-Budde
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