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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Heiko Stuebner , Philipp Zabel , Elaine Zhang , David Jander Cc: Simon Horman , linux-can@vger.kernel.org, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, Marc Kleine-Budde X-Mailer: b4 0.15-dev-99b12 X-Developer-Signature: v=1; a=openpgp-sha256; l=1269; i=mkl@pengutronix.de; h=from:subject:message-id; bh=dZ/z0OYSJdLd/zc3tGmB/s4VwJfdIqUEsJyC51U0B6w=; b=owEBbQGS/pANAwAKASg4oj56LbxvAcsmYgBm1tU/bADVIpOb2y3m8ufpqN6eoibZ/0jgX5iXw 3IOqrUBaECJATMEAAEKAB0WIQRQQLqG4LYE3Sm8Pl8oOKI+ei28bwUCZtbVPwAKCRAoOKI+ei28 b4ngB/9/EDr2Wl0N7eR8to3BPdEfWb1ZNLdklUXo8B3YcbWERQU6rSp3z+YYnQ9PmToZrVr1+yJ XeS31v3etcJOnFxiM+ELM/B51U/vyxhpH/eyrQeQC7ZWH8ytulU8C9hee+Wb7sCWmmVPm3tPSry mGugF7IpcJhN/EcS+emvmxL7XuatDyUQBKz2OgJyyS4je3qURwBeO5f+UxbBZsLMfuOg8HKP4XF E2ABOOwk0YOjACtEyvvFSkidJYrQnnHaCbU/gSQEge8eLIJqqrkZ616pYX01SAqPDRpr++ZWkDB j8U+KD2ZfhYiiSI2jOmYLWYgGbSGRu75A9DRQ1zWH9fFQSoG X-Developer-Key: i=mkl@pengutronix.de; a=openpgp; fpr=C1400BA0B3989E6FBC7D5B5C2B5EE211C58AEA54 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: mkl@pengutronix.de X-SA-Exim-Scanned: No (on metis.whiteo.stw.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-rockchip@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240903_102249_015821_37DA42B0 X-CRM114-Status: GOOD ( 11.83 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org Even the rk3568v3 has some known issues. Document them together with a reproducer. Tested-by: Alibek Omarov Signed-off-by: Marc Kleine-Budde --- drivers/net/can/rockchip/rockchip_canfd.h | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/drivers/net/can/rockchip/rockchip_canfd.h b/drivers/net/can/rockchip/rockchip_canfd.h index 9b446331fbd0..3dafb5e68dc5 100644 --- a/drivers/net/can/rockchip/rockchip_canfd.h +++ b/drivers/net/can/rockchip/rockchip_canfd.h @@ -370,6 +370,26 @@ */ #define RKCANFD_QUIRK_CANFD_BROKEN BIT(12) +/* known issues with rk3568v3: + * + * - Overload situation during high bus load + * To reproduce: + * host: + * # add a 2nd CAN adapter to the CAN bus + * cangen can0 -I 1 -Li -Di -p10 -g 0.3 + * cansequence -rve + * DUT: + * cangen can0 -I2 -L1 -Di -p10 -c10 -g 1 -e + * cansequence -rv -i 1 + * + * - TX starvation after repeated Bus-Off + * To reproduce: + * host: + * sleep 3 && cangen can0 -I2 -Li -Di -p10 -g 0.0 + * DUT: + * cangen can0 -I2 -Li -Di -p10 -g 0.05 + */ + enum rkcanfd_model { RKCANFD_MODEL_RK3568V2 = 0x35682, RKCANFD_MODEL_RK3568V3 = 0x35683,