[PATCH net-next 06/18] can: rockchip_canfd: add notes about known issues

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Even the rk3568v3 has some known issues. Document them together with a
reproducer.

Tested-by: Alibek Omarov <a1ba.omarov@xxxxxxxxx>
Acked-by: Heiko Stuebner <heiko@xxxxxxxxx>
Link: https://patch.msgid.link/20240904-rockchip-canfd-v5-8-8ae22bcb27cc@xxxxxxxxxxxxxx
Signed-off-by: Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx>
---
 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,
-- 
2.45.2






[Index of Archives]     [Automotive Discussions]     [Linux ARM Kernel]     [Linux ARM]     [Linux Omap]     [Fedora ARM]     [IETF Annouce]     [Security]     [Bugtraq]     [Linux]     [Linux OMAP]     [Linux MIPS]     [eCos]     [Asterisk Internet PBX]     [Linux API]     [CAN Bus]

  Powered by Linux