Skip to main content

Browse the archive

https://github.com/torvalds/linux
05 April 2024, 19:05:47 UTC
Revision 4cab346bcf74f44665d57726ec2bccff6e679619 authored by Huy Nguyen on 07 February 2019, 15:22:56 UTC, committed by Saeed Mahameed on 13 February 2019, 23:40:50 UTC 
net/mlx5: No command allowed when command interface is not ready
 
When EEH is injected and PCI bus stalls, mlx5's pci error detect
function is called to deactivate the command interface and tear down
the device. The issue is that there can be a thread that already
passed MLX5_DEVICE_STATE_INTERNAL_ERROR check, it will send the command
and stuck in the wait_func.

Solution:
Add function mlx5_cmd_flush to disable command interface and clear all
the pending commands. When device state is set to
MLX5_DEVICE_STATE_INTERNAL_ERROR, call mlx5_cmd_flush to ensure all
pending threads waiting for firmware commands completion are terminated.

Fixes: c1d4d2e92ad6 ("net/mlx5: Avoid calling sleeping function by the health poll thread")
Signed-off-by: Huy Nguyen <huyn@mellanox.com>
Reviewed-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
1 parent fb35c53
History
Tip revision: 4cab346bcf74f44665d57726ec2bccff6e679619 authored by Huy Nguyen on 07 February 2019, 15:22:56 UTC
net/mlx5: No command allowed when command interface is not ready
Tip revision: 4cab346
File Mode Size
Documentation
LICENSES
arch
block
certs
crypto
drivers
firmware
fs
include
init
ipc
kernel
lib
mm
net
samples
scripts
security
sound
tools
usr
virt
.clang-format -rw-r--r-- 13.9 KB
.cocciconfig -rw-r--r-- 59 bytes
.get_maintainer.ignore -rw-r--r-- 31 bytes
.gitattributes -rw-r--r-- 30 bytes
.gitignore -rw-r--r-- 1.5 KB
.mailmap -rw-r--r-- 10.7 KB
COPYING -rw-r--r-- 423 bytes
CREDITS -rw-r--r-- 96.9 KB
Kbuild -rw-r--r-- 1.7 KB
Kconfig -rw-r--r-- 563 bytes
MAINTAINERS -rw-r--r-- 482.2 KB
Makefile -rw-r--r-- 59.1 KB
README -rw-r--r-- 727 bytes

README

back to top