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Diffstat (limited to 'Documentation/networking/device_drivers/ethernet/mellanox/mlx5/devlink.rst')
| -rw-r--r-- | Documentation/networking/device_drivers/ethernet/mellanox/mlx5/devlink.rst | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/Documentation/networking/device_drivers/ethernet/mellanox/mlx5/devlink.rst b/Documentation/networking/device_drivers/ethernet/mellanox/mlx5/devlink.rst index 9b5c40ba7f0d..0995e4e5acd7 100644 --- a/Documentation/networking/device_drivers/ethernet/mellanox/mlx5/devlink.rst +++ b/Documentation/networking/device_drivers/ethernet/mellanox/mlx5/devlink.rst @@ -122,6 +122,41 @@ users try to enable them. $ devlink dev eswitch set pci/0000:06:00.0 mode switchdev +hairpin_num_queues: Number of hairpin queues +-------------------------------------------- +We refer to a TC NIC rule that involves forwarding as "hairpin". + +Hairpin queues are mlx5 hardware specific implementation for hardware +forwarding of such packets. + +- Show the number of hairpin queues:: + + $ devlink dev param show pci/0000:06:00.0 name hairpin_num_queues + pci/0000:06:00.0: + name hairpin_num_queues type driver-specific + values: + cmode driverinit value 2 + +- Change the number of hairpin queues:: + + $ devlink dev param set pci/0000:06:00.0 name hairpin_num_queues value 4 cmode driverinit + +hairpin_queue_size: Size of the hairpin queues +---------------------------------------------- +Control the size of the hairpin queues. + +- Show the size of the hairpin queues:: + + $ devlink dev param show pci/0000:06:00.0 name hairpin_queue_size + pci/0000:06:00.0: + name hairpin_queue_size type driver-specific + values: + cmode driverinit value 1024 + +- Change the size (in packets) of the hairpin queues:: + + $ devlink dev param set pci/0000:06:00.0 name hairpin_queue_size value 512 cmode driverinit + Health reporters ================ |