Cosmin Ratiu 325db9c6f6
net/mlx5e: Use multiple CQ doorbells ...
Channel doorbells are now also used by all channel CQs.
A new 'uar' parameter is added to 'struct mlx5e_create_cq_param',
which is then used in mlx5e_alloc_cq.
A single UAR page has two TX doorbells and a single CQ doorbell, so
every consecutive pair of 'struct mlx5_sq_bfreg' (TX doorbells)
uses the same underlying 'struct mlx5_uars_page' (CQ doorbell).
So by using c->bfreg->up, CQs from every consecutive channel pair will
share the same CQ doorbell.
Non-channel associated CQs keep using the global CQ doorbell.
Signed-off-by: Cosmin Ratiu <cratiu@nvidia.com >
Reviewed-by: Dragos Tatulea <dtatulea@nvidia.com >
Signed-off-by: Tariq Toukan <tariqt@nvidia.com >
Reviewed-by: Simon Horman <horms@kernel.org >
Signed-off-by: Jakub Kicinski <kuba@kernel.org >
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325db9c6f6