net/mlx5: SD, Implement devcom communication and primary election

Browse source

Use devcom to communicate between the different devices. Add a new
devcom component type for this.

Each device registers itself to the devcom component <SD, group ID>.
Once all devices of a component are registered, the component becomes
ready, and a primary device is elected.

In principle, any of the devices can act as a primary, they are all
capable, and a random election would've worked. However, we aim to
achieve predictability and consistency, hence each group always choses
the same device, with the lowest PCI BUS number, as primary.

Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>

...

This commit is contained in:

Tariq Toukan 2024-02-14 19:08:03 -08:00 • committed by Saeed Mahameed

parent 678eb44805

commit d3d0576660

2 changed files with 121 additions and 2 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

1

drivers/net/ethernet/mellanox/mlx5/core/lib/devcom.h

View file

122

drivers/net/ethernet/mellanox/mlx5/core/lib/sd.c

View file