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| author | Marc Kleine-Budde <mkl@pengutronix.de> | 2024-07-28 15:53:27 +0300 |
|---|---|---|
| committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2024-09-04 15:41:52 +0300 |
| commit | fb999a5f990605fa4876525c9f73fc0a37844a2d (patch) | |
| tree | 37674e163d600a9bf5545b3a4153948c6ba4b3ea | |
| parent | c158f22fe5562f416bcec4d6a75ae0f9f6661910 (diff) | |
| download | linux-fb999a5f990605fa4876525c9f73fc0a37844a2d.tar.xz | |
can: rockchip_canfd: add notes about known issues
Even the rk3568v3 has some known issues. Document them together with a
reproducer.
Tested-by: Alibek Omarov <a1ba.omarov@gmail.com>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patch.msgid.link/20240904-rockchip-canfd-v5-8-8ae22bcb27cc@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
| -rw-r--r-- | drivers/net/can/rockchip/rockchip_canfd.h | 20 |
1 files changed, 20 insertions, 0 deletions
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, |