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| author | Akiva Goldberger <agoldberger@nvidia.com> | 2024-06-27 21:23:50 +0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2024-06-27 22:28:22 +0300 |
| commit | 589b844f1bf04850d9fabcaa2e943325dc6768b4 (patch) | |
| tree | 3421b77a26719194a19303a3c04c1e013eb4d336 /drivers/infiniband/hw/mlx5/cq.c | |
| parent | dd6d7f8574d7f8b6a0bf1aeef0b285d2706b8c2a (diff) | |
| download | linux-589b844f1bf04850d9fabcaa2e943325dc6768b4.tar.xz | |
RDMA/mlx5: Send UAR page index as ioctl attribute
Add UAR page index as a driver ioctl attribute to increase the number of
supported indices, previously limited to 16 bits by mlx5_ib_create_cq
struct.
Link: https://lore.kernel.org/r/0e18b34d7ec3b1ae02d694b0d545aed7413c0ef7.1719512393.git.leon@kernel.org
Signed-off-by: Akiva Goldberger <agoldberger@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/infiniband/hw/mlx5/cq.c')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/cq.c | 28 |
1 files changed, 25 insertions, 3 deletions
diff --git a/drivers/infiniband/hw/mlx5/cq.c b/drivers/infiniband/hw/mlx5/cq.c index eebfd6fa4d9b..4c54dc578069 100644 --- a/drivers/infiniband/hw/mlx5/cq.c +++ b/drivers/infiniband/hw/mlx5/cq.c @@ -38,6 +38,9 @@ #include "srq.h" #include "qp.h" +#define UVERBS_MODULE_NAME mlx5_ib +#include <rdma/uverbs_named_ioctl.h> + static void mlx5_ib_cq_comp(struct mlx5_core_cq *cq, struct mlx5_eqe *eqe) { struct ib_cq *ibcq = &to_mibcq(cq)->ibcq; @@ -714,7 +717,8 @@ static int mini_cqe_res_format_to_hw(struct mlx5_ib_dev *dev, u8 format) static int create_cq_user(struct mlx5_ib_dev *dev, struct ib_udata *udata, struct mlx5_ib_cq *cq, int entries, u32 **cqb, - int *cqe_size, int *index, int *inlen) + int *cqe_size, int *index, int *inlen, + struct uverbs_attr_bundle *attrs) { struct mlx5_ib_create_cq ucmd = {}; unsigned long page_size; @@ -788,7 +792,11 @@ static int create_cq_user(struct mlx5_ib_dev *dev, struct ib_udata *udata, order_base_2(page_size) - MLX5_ADAPTER_PAGE_SHIFT); MLX5_SET(cqc, cqc, page_offset, page_offset_quantized); - if (ucmd.flags & MLX5_IB_CREATE_CQ_FLAGS_UAR_PAGE_INDEX) { + if (uverbs_attr_is_valid(attrs, MLX5_IB_ATTR_CREATE_CQ_UAR_INDEX)) { + err = uverbs_copy_from(index, attrs, MLX5_IB_ATTR_CREATE_CQ_UAR_INDEX); + if (err) + goto err_cqb; + } else if (ucmd.flags & MLX5_IB_CREATE_CQ_FLAGS_UAR_PAGE_INDEX) { *index = ucmd.uar_page_index; } else if (context->bfregi.lib_uar_dyn) { err = -EINVAL; @@ -981,7 +989,7 @@ int mlx5_ib_create_cq(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr, if (udata) { err = create_cq_user(dev, udata, cq, entries, &cqb, &cqe_size, - &index, &inlen); + &index, &inlen, attrs); if (err) return err; } else { @@ -1443,3 +1451,17 @@ int mlx5_ib_generate_wc(struct ib_cq *ibcq, struct ib_wc *wc) return 0; } + +ADD_UVERBS_ATTRIBUTES_SIMPLE( + mlx5_ib_cq_create, + UVERBS_OBJECT_CQ, + UVERBS_METHOD_CQ_CREATE, + UVERBS_ATTR_PTR_IN( + MLX5_IB_ATTR_CREATE_CQ_UAR_INDEX, + UVERBS_ATTR_TYPE(u32), + UA_OPTIONAL)); + +const struct uapi_definition mlx5_ib_create_cq_defs[] = { + UAPI_DEF_CHAIN_OBJ_TREE(UVERBS_OBJECT_CQ, &mlx5_ib_cq_create), + {}, +}; |