mlx5-updates-2018-08-01
This series provides devlink parameters updates to both devlink API and
mlx5 driver,
1) Devlink changes: (Moshe Shemesh)
The first two patches fix devlink param infrastructure for string type
params.
The third patch adds a devlink helper function to safely copy string from
driver to devlink.
The forth patch adds extack support for param set.
2) mlx5 specific congestion parameters: (Eran Ben Elisha)
Next three patches add new devlink driver specific params for controlling
congestion action and mode, using string type params and extack messages support.
This congestion mode enables hw workaround in specific devices which is
controlled by devlink driver-specific params. The workaround is device
specific for this NIC generation, the next NIC will not need it.
Congestion parameters:
- Congestion action
HW W/A mechanism in the PCIe buffer which monitors the amount of
consumed PCIe buffer per host. This mechanism supports the
following actions in case of threshold overflow:
- Disabled - NOP (Default)
- Drop
- Mark - Mark CE bit in the CQE of received packet
- Congestion mode
- Aggressive - Aggressive static trigger threshold (Default)
- Dynamic - Dynamically change the trigger threshold
3) mlx5 firmware snapshot support via devlink: (Alex Vesker)
Last three patches, add the support for capturing region snapshot of the
firmware crspace during critical errors, using devlink region_snapshot
parameter.
-Saeed.
net/mlx5: Use devlink region_snapshot parameter
This parameter enables capturing region snapshot of the crspace
during critical errors. The default value of this parameter is
disabled, it can be enabled using devlink param commands.
It is possible to configure during runtime and also driver init.
Signed-off-by: Alex Vesker <valex@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
3 files changed
