Author: slavash
Date: Wed Dec 5 14:21:59 2018
New Revision: 341580
URL: https://svnweb.freebsd.org/changeset/base/341580
Log:
mlx5en: Don't set rate on SQs when the SQ is already stopped.
This can happen when connections are short lived and leads to
a firmware error printout in dmesg, syndrome 0x51cfb0, because
the SQ is in the wrong state.
Submitted by: hselasky@
Approved by: hselasky (mentor)
MFC after: 1 week
Sponsored by: Mellanox Technologies
Modified:
head/sys/dev/mlx5/mlx5_en/mlx5_en_rl.c
Modified: head/sys/dev/mlx5/mlx5_en/mlx5_en_rl.c
==============================================================================
--- head/sys/dev/mlx5/mlx5_en/mlx5_en_rl.c Wed Dec 5 14:21:28 2018
(r341579)
+++ head/sys/dev/mlx5/mlx5_en/mlx5_en_rl.c Wed Dec 5 14:21:59 2018
(r341580)
@@ -458,9 +458,9 @@ mlx5e_rlw_channel_set_rate_locked(struct mlx5e_rl_work
howmany(rate, 1000), burst);
}
- /* set new rate */
+ /* set new rate, if SQ is not stopped */
sq = channel->sq;
- if (sq != NULL) {
+ if (sq != NULL && sq->stopped == 0) {
error = mlx5e_rl_modify_sq(sq, index);
if (error != 0)
atomic_add_64(&rlw->priv->rl.stats.tx_modify_rate_failure, 1ULL);
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