net/mlx5: Rate limit errors in command interface
authorLeon Romanovsky <leonro@mellanox.com>
Sun, 24 Jun 2018 08:23:46 +0000 (11:23 +0300)
committerLeon Romanovsky <leonro@mellanox.com>
Wed, 27 Jun 2018 05:43:55 +0000 (08:43 +0300)
commitb30408d7a38356e4d6b4f913686b25401fae386c
treee0aa867eb5eca0b7725ae3dbad6172099929be5a
parent0af5107cd0640ee3424e337b492e4b11b450ce28
net/mlx5: Rate limit errors in command interface

Any error status returned by FW will trigger a print similar to the
following error message in the dmesg.

[   55.884355] mlx5_core 0000:00:04.0: mlx5_cmd_check:712:(pid 555):
ALLOC_UAR(0x802) op_mod(0x0) failed, status limits exceeded(0x8),
syndrome (0x0)

Those prints are extremely valuable to diagnose issues with running system
and it is important to keep them. However, not-so-careful user can trigger
endless number of such prints by depleting HW resources and will spam
dmesg.

Rate limiting of such messages solves this issue.

Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
drivers/net/ethernet/mellanox/mlx5/core/cmd.c
drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h