diff options
| author | Anssi Hannula <[email protected]> | 2022-10-10 17:08:28 +0200 |
|---|---|---|
| committer | Marc Kleine-Budde <[email protected]> | 2022-10-11 08:50:44 +0200 |
| commit | 455561fb618fde40558776b5b8435f9420f335db (patch) | |
| tree | bbbe1b42e923a4dd8f7c847f53ffd21803ccb4b5 /tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace | |
| parent | cd7f30e174d09a02ca2afa5ef093fb0f0352e0d8 (diff) | |
can: kvaser_usb_leaf: Fix TX queue out of sync after restart
The TX queue seems to be implicitly flushed by the hardware during
bus-off or bus-off recovery, but the driver does not reset the TX
bookkeeping.
Despite not resetting TX bookkeeping the driver still re-enables TX
queue unconditionally, leading to "cannot find free context" /
NETDEV_TX_BUSY errors if the TX queue was full at bus-off time.
Fix that by resetting TX bookkeeping on CAN restart.
Tested with 0bfd:0124 Kvaser Mini PCI Express 2xHS FW 4.18.778.
Cc: [email protected]
Fixes: 080f40a6fa28 ("can: kvaser_usb: Add support for Kvaser CAN/USB devices")
Tested-by: Jimmy Assarsson <[email protected]>
Signed-off-by: Anssi Hannula <[email protected]>
Signed-off-by: Jimmy Assarsson <[email protected]>
Link: https://lore.kernel.org/all/[email protected]
Signed-off-by: Marc Kleine-Budde <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace')
0 files changed, 0 insertions, 0 deletions