diff options
| author | Cosmin Ratiu <cratiu@nvidia.com> | 2025-09-16 17:11:38 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-09-17 18:30:32 -0700 |
| commit | aa4595d0ada65d5d44fa924a42a87c175d9d88e3 (patch) | |
| tree | de4af28820c2473398f17680f00a0cba63b741a1 /drivers/infiniband/hw | |
| parent | net/mlx5e: Remove unused 'xsk' param of mlx5e_build_xdpsq_param (diff) | |
| download | linux-aa4595d0ada65d5d44fa924a42a87c175d9d88e3.tar.gz linux-aa4595d0ada65d5d44fa924a42a87c175d9d88e3.zip | |
net/mlx5: Store the global doorbell in mlx5_priv
The global doorbell is used for more than just Ethernet resources, so
move it out of mlx5e_hw_objs into a common place (mlx5_priv), to avoid
non-Ethernet modules (e.g. HWS, ASO) depending on Ethernet structs.
Use this opportunity to consolidate it with the 'uar' pointer already
there, which was used as an RX doorbell. Underneath the 'uar' pointer is
identical to 'bfreg->up', so store a single resource and use that
instead.
For CQ doorbells, care is taken to always use bfreg->up->index instead
of bfreg->index, which may refer to a subsequent UAR page from the same
ALLOC_UAR batch on some NICs.
This paves the way for cleanly supporting multiple doorbells in the
Ethernet driver.
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>
Diffstat (limited to 'drivers/infiniband/hw')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/cq.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/mlx5/cq.c b/drivers/infiniband/hw/mlx5/cq.c index 9c8003a78334..a23b364e24ff 100644 --- a/drivers/infiniband/hw/mlx5/cq.c +++ b/drivers/infiniband/hw/mlx5/cq.c @@ -648,7 +648,7 @@ int mlx5_ib_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags) { struct mlx5_core_dev *mdev = to_mdev(ibcq->device)->mdev; struct mlx5_ib_cq *cq = to_mcq(ibcq); - void __iomem *uar_page = mdev->priv.uar->map; + void __iomem *uar_page = mdev->priv.bfreg.up->map; unsigned long irq_flags; int ret = 0; @@ -923,7 +923,7 @@ static int create_cq_kernel(struct mlx5_ib_dev *dev, struct mlx5_ib_cq *cq, cq->buf.frag_buf.page_shift - MLX5_ADAPTER_PAGE_SHIFT); - *index = dev->mdev->priv.uar->index; + *index = dev->mdev->priv.bfreg.up->index; return 0; |