diff options
Diffstat (limited to 'drivers/infiniband/hw/mlx5/mlx5_ib.h')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/mlx5_ib.h | 102 |
1 files changed, 81 insertions, 21 deletions
diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h index ea5243815cf6..b0fdc1b08e06 100644 --- a/drivers/infiniband/hw/mlx5/mlx5_ib.h +++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h @@ -40,7 +40,73 @@ #define MLX5_IB_DEFAULT_UIDX 0xffffff #define MLX5_USER_ASSIGNED_UIDX_MASK __mlx5_mask(qpc, user_index) -#define MLX5_MKEY_PAGE_SHIFT_MASK __mlx5_mask(mkc, log_page_size) +static __always_inline unsigned long +__mlx5_log_page_size_to_bitmap(unsigned int log_pgsz_bits, + unsigned int pgsz_shift) +{ + unsigned int largest_pg_shift = + min_t(unsigned long, (1ULL << log_pgsz_bits) - 1 + pgsz_shift, + BITS_PER_LONG - 1); + + /* + * Despite a command allowing it, the device does not support lower than + * 4k page size. + */ + pgsz_shift = max_t(unsigned int, MLX5_ADAPTER_PAGE_SHIFT, pgsz_shift); + return GENMASK(largest_pg_shift, pgsz_shift); +} + +/* + * For mkc users, instead of a page_offset the command has a start_iova which + * specifies both the page_offset and the on-the-wire IOVA + */ +#define mlx5_umem_find_best_pgsz(umem, typ, log_pgsz_fld, pgsz_shift, iova) \ + ib_umem_find_best_pgsz(umem, \ + __mlx5_log_page_size_to_bitmap( \ + __mlx5_bit_sz(typ, log_pgsz_fld), \ + pgsz_shift), \ + iova) + +static __always_inline unsigned long +__mlx5_page_offset_to_bitmask(unsigned int page_offset_bits, + unsigned int offset_shift) +{ + unsigned int largest_offset_shift = + min_t(unsigned long, page_offset_bits - 1 + offset_shift, + BITS_PER_LONG - 1); + + return GENMASK(largest_offset_shift, offset_shift); +} + +/* + * QP/CQ/WQ/etc type commands take a page offset that satisifies: + * page_offset_quantized * (page_size/scale) = page_offset + * Which restricts allowed page sizes to ones that satisify the above. + */ +unsigned long __mlx5_umem_find_best_quantized_pgoff( + struct ib_umem *umem, unsigned long pgsz_bitmap, + unsigned int page_offset_bits, u64 pgoff_bitmask, unsigned int scale, + unsigned int *page_offset_quantized); +#define mlx5_umem_find_best_quantized_pgoff(umem, typ, log_pgsz_fld, \ + pgsz_shift, page_offset_fld, \ + scale, page_offset_quantized) \ + __mlx5_umem_find_best_quantized_pgoff( \ + umem, \ + __mlx5_log_page_size_to_bitmap( \ + __mlx5_bit_sz(typ, log_pgsz_fld), pgsz_shift), \ + __mlx5_bit_sz(typ, page_offset_fld), \ + GENMASK(31, order_base_2(scale)), scale, \ + page_offset_quantized) + +#define mlx5_umem_find_best_cq_quantized_pgoff(umem, typ, log_pgsz_fld, \ + pgsz_shift, page_offset_fld, \ + scale, page_offset_quantized) \ + __mlx5_umem_find_best_quantized_pgoff( \ + umem, \ + __mlx5_log_page_size_to_bitmap( \ + __mlx5_bit_sz(typ, log_pgsz_fld), pgsz_shift), \ + __mlx5_bit_sz(typ, page_offset_fld), 0, scale, \ + page_offset_quantized) enum { MLX5_IB_MMAP_OFFSET_START = 9, @@ -597,14 +663,12 @@ struct mlx5_ib_mr { int max_descs; int desc_size; int access_mode; + unsigned int page_shift; struct mlx5_core_mkey mmkey; struct ib_umem *umem; struct mlx5_shared_mr_info *smr_info; struct list_head list; - unsigned int order; struct mlx5_cache_ent *cache_ent; - int npages; - struct mlx5_ib_dev *dev; u32 out[MLX5_ST_SZ_DW(create_mkey_out)]; struct mlx5_core_sig_ctx *sig; void *descs_alloc; @@ -1042,6 +1106,11 @@ static inline struct mlx5_ib_dev *to_mdev(struct ib_device *ibdev) return container_of(ibdev, struct mlx5_ib_dev, ib_dev); } +static inline struct mlx5_ib_dev *mr_to_mdev(struct mlx5_ib_mr *mr) +{ + return to_mdev(mr->ibmr.device); +} + static inline struct mlx5_ib_dev *mlx5_udata_to_mdev(struct ib_udata *udata) { struct mlx5_ib_ucontext *context = rdma_udata_to_drv_context( @@ -1189,9 +1258,9 @@ struct mlx5_ib_mr *mlx5_ib_alloc_implicit_mr(struct mlx5_ib_pd *pd, int access_flags); void mlx5_ib_free_implicit_mr(struct mlx5_ib_mr *mr); void mlx5_ib_fence_odp_mr(struct mlx5_ib_mr *mr); -int mlx5_ib_rereg_user_mr(struct ib_mr *ib_mr, int flags, u64 start, - u64 length, u64 virt_addr, int access_flags, - struct ib_pd *pd, struct ib_udata *udata); +struct ib_mr *mlx5_ib_rereg_user_mr(struct ib_mr *ib_mr, int flags, u64 start, + u64 length, u64 virt_addr, int access_flags, + struct ib_pd *pd, struct ib_udata *udata); int mlx5_ib_dereg_mr(struct ib_mr *ibmr, struct ib_udata *udata); struct ib_mr *mlx5_ib_alloc_mr(struct ib_pd *pd, enum ib_mr_type mr_type, u32 max_num_sg); @@ -1210,7 +1279,6 @@ int mlx5_ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num, size_t *out_mad_size, u16 *out_mad_pkey_index); int mlx5_ib_alloc_xrcd(struct ib_xrcd *xrcd, struct ib_udata *udata); int mlx5_ib_dealloc_xrcd(struct ib_xrcd *xrcd, struct ib_udata *udata); -int mlx5_ib_get_buf_offset(u64 addr, int page_shift, u32 *offset); int mlx5_query_ext_port_caps(struct mlx5_ib_dev *dev, u8 port); int mlx5_query_mad_ifc_smp_attr_node_info(struct ib_device *ibdev, struct ib_smp *out_mad); @@ -1230,15 +1298,8 @@ int mlx5_query_mad_ifc_port(struct ib_device *ibdev, u8 port, struct ib_port_attr *props); int mlx5_ib_query_port(struct ib_device *ibdev, u8 port, struct ib_port_attr *props); -void mlx5_ib_cont_pages(struct ib_umem *umem, u64 addr, - unsigned long max_page_shift, - int *count, int *shift, - int *ncont, int *order); -void __mlx5_ib_populate_pas(struct mlx5_ib_dev *dev, struct ib_umem *umem, - int page_shift, size_t offset, size_t num_pages, - __be64 *pas, int access_flags); -void mlx5_ib_populate_pas(struct mlx5_ib_dev *dev, struct ib_umem *umem, - int page_shift, __be64 *pas, int access_flags); +void mlx5_ib_populate_pas(struct ib_umem *umem, size_t page_size, __be64 *pas, + u64 access_flags); void mlx5_ib_copy_pas(u64 *old, u64 *new, int step, int num); int mlx5_ib_get_cqe_size(struct ib_cq *ibcq); int mlx5_mr_cache_init(struct mlx5_ib_dev *dev); @@ -1283,7 +1344,7 @@ void mlx5_odp_populate_xlt(void *xlt, size_t idx, size_t nentries, int mlx5_ib_advise_mr_prefetch(struct ib_pd *pd, enum ib_uverbs_advise_mr_advice advice, u32 flags, struct ib_sge *sg_list, u32 num_sge); -int mlx5_ib_init_odp_mr(struct mlx5_ib_mr *mr, bool enable); +int mlx5_ib_init_odp_mr(struct mlx5_ib_mr *mr); #else /* CONFIG_INFINIBAND_ON_DEMAND_PAGING */ static inline void mlx5_ib_internal_fill_odp_caps(struct mlx5_ib_dev *dev) { @@ -1305,7 +1366,7 @@ mlx5_ib_advise_mr_prefetch(struct ib_pd *pd, { return -EOPNOTSUPP; } -static inline int mlx5_ib_init_odp_mr(struct mlx5_ib_mr *mr, bool enable) +static inline int mlx5_ib_init_odp_mr(struct mlx5_ib_mr *mr) { return -EOPNOTSUPP; } @@ -1456,8 +1517,7 @@ static inline int get_num_static_uars(struct mlx5_ib_dev *dev, return get_uars_per_sys_page(dev, bfregi->lib_uar_4k) * bfregi->num_static_sys_pages; } -unsigned long mlx5_ib_get_xlt_emergency_page(void); -void mlx5_ib_put_xlt_emergency_page(void); +extern void *xlt_emergency_page; int bfregn_to_uar_index(struct mlx5_ib_dev *dev, struct mlx5_bfreg_info *bfregi, u32 bfregn, |