Marc Kleine-Budde 2afe72ead5 can: mcp251xfd: revert "can: mcp251xfd: add BQL support" ... In the following 4 patches | 99842c9685 can: dev: can_rx_offload_get_echo_skb(): extend to return can frame length | 9420e1d495 can: dev: can_get_echo_skb(): extend to return can frame length | 1dcb6e57db can: dev: can_put_echo_skb(): extend to handle frame_len | f0ef72febc can: dev: extend struct can_skb_priv to hold CAN frame length the CAN echo SKB support was extended to hold the CAN frame length (which is the length of the CAN frame on the wire). It is meant as a helper for BQL support, to avoid the re-calculation of the frame length before sending it and on TX-completion. However if the CAN frame is send without the request to be looped back the SKB is discarded in can_put_echo_skb() and the subsequent can_get_echo_skb() and can_rx_offload_get_echo_skb() return 0 for the CAN frame length. This results in BQL stalling the TX queue after a few packages. Until the BQL helpers can_get_echo_skb() and can_rx_offload_get_echo_skb() are fixed, revert the BQL support for the mcp251xfd driver. This reverts commit 4162e18e94. Fixes: 4162e18e94 ("can: mcp251xfd: add BQL support") Cc: Manivannan Sadhasivam <mani@kernel.org> Cc: Thomas Kopp <thomas.kopp@microchip.com> Link: https://lore.kernel.org/r/20210228083347.28580-1-mkl@pengutronix.de Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>		2021-03-01 11:44:45 +01:00
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mcp251xfd	can: mcp251xfd: revert "can: mcp251xfd: add BQL support"	2021-03-01 11:44:45 +01:00
Kconfig	can: mcp251xfd: rename driver files and subdir to mcp251xfd	2020-09-30 21:54:30 +02:00
Makefile	can: mcp251xfd: rename driver files and subdir to mcp251xfd	2020-09-30 21:54:30 +02:00
hi311x.c	can: dev: can_get_echo_skb(): extend to return can frame length	2021-01-14 08:43:43 +01:00
mcp251x.c	can: dev: can_get_echo_skb(): extend to return can frame length	2021-01-14 08:43:43 +01:00