diff options
Diffstat (limited to 'include/linux/mlx5/driver.h')
| -rw-r--r-- | include/linux/mlx5/driver.h | 51 |
1 files changed, 37 insertions, 14 deletions
diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h index 2860a253275b..bfea26af6de5 100644 --- a/include/linux/mlx5/driver.h +++ b/include/linux/mlx5/driver.h @@ -345,13 +345,6 @@ struct mlx5_buf_list { dma_addr_t map; }; -struct mlx5_buf { - struct mlx5_buf_list direct; - int npages; - int size; - u8 page_shift; -}; - struct mlx5_frag_buf { struct mlx5_buf_list *frags; int npages; @@ -359,6 +352,15 @@ struct mlx5_frag_buf { u8 page_shift; }; +struct mlx5_frag_buf_ctrl { + struct mlx5_frag_buf frag_buf; + u32 sz_m1; + u32 frag_sz_m1; + u8 log_sz; + u8 log_stride; + u8 log_frag_strides; +}; + struct mlx5_eq_tasklet { struct list_head list; struct list_head process_list; @@ -386,7 +388,7 @@ struct mlx5_eq { struct mlx5_cq_table cq_table; __be32 __iomem *doorbell; u32 cons_index; - struct mlx5_buf buf; + struct mlx5_frag_buf buf; int size; unsigned int irqn; u8 eqn; @@ -932,9 +934,9 @@ struct mlx5_hca_vport_context { bool grh_required; }; -static inline void *mlx5_buf_offset(struct mlx5_buf *buf, int offset) +static inline void *mlx5_buf_offset(struct mlx5_frag_buf *buf, int offset) { - return buf->direct.buf + offset; + return buf->frags->buf + offset; } #define STRUCT_FIELD(header, field) \ @@ -973,6 +975,25 @@ static inline u32 mlx5_base_mkey(const u32 key) return key & 0xffffff00u; } +static inline void mlx5_core_init_cq_frag_buf(struct mlx5_frag_buf_ctrl *fbc, + void *cqc) +{ + fbc->log_stride = 6 + MLX5_GET(cqc, cqc, cqe_sz); + fbc->log_sz = MLX5_GET(cqc, cqc, log_cq_size); + fbc->sz_m1 = (1 << fbc->log_sz) - 1; + fbc->log_frag_strides = PAGE_SHIFT - fbc->log_stride; + fbc->frag_sz_m1 = (1 << fbc->log_frag_strides) - 1; +} + +static inline void *mlx5_frag_buf_get_wqe(struct mlx5_frag_buf_ctrl *fbc, + u32 ix) +{ + unsigned int frag = (ix >> fbc->log_frag_strides); + + return fbc->frag_buf.frags[frag].buf + + ((fbc->frag_sz_m1 & ix) << fbc->log_stride); +} + int mlx5_cmd_init(struct mlx5_core_dev *dev); void mlx5_cmd_cleanup(struct mlx5_core_dev *dev); void mlx5_cmd_use_events(struct mlx5_core_dev *dev); @@ -998,9 +1019,10 @@ void mlx5_drain_health_wq(struct mlx5_core_dev *dev); void mlx5_trigger_health_work(struct mlx5_core_dev *dev); void mlx5_drain_health_recovery(struct mlx5_core_dev *dev); int mlx5_buf_alloc_node(struct mlx5_core_dev *dev, int size, - struct mlx5_buf *buf, int node); -int mlx5_buf_alloc(struct mlx5_core_dev *dev, int size, struct mlx5_buf *buf); -void mlx5_buf_free(struct mlx5_core_dev *dev, struct mlx5_buf *buf); + struct mlx5_frag_buf *buf, int node); +int mlx5_buf_alloc(struct mlx5_core_dev *dev, + int size, struct mlx5_frag_buf *buf); +void mlx5_buf_free(struct mlx5_core_dev *dev, struct mlx5_frag_buf *buf); int mlx5_frag_buf_alloc_node(struct mlx5_core_dev *dev, int size, struct mlx5_frag_buf *buf, int node); void mlx5_frag_buf_free(struct mlx5_core_dev *dev, struct mlx5_frag_buf *buf); @@ -1045,7 +1067,8 @@ int mlx5_satisfy_startup_pages(struct mlx5_core_dev *dev, int boot); int mlx5_reclaim_startup_pages(struct mlx5_core_dev *dev); void mlx5_register_debugfs(void); void mlx5_unregister_debugfs(void); -void mlx5_fill_page_array(struct mlx5_buf *buf, __be64 *pas); + +void mlx5_fill_page_array(struct mlx5_frag_buf *buf, __be64 *pas); void mlx5_fill_page_frag_array(struct mlx5_frag_buf *frag_buf, __be64 *pas); void mlx5_rsc_event(struct mlx5_core_dev *dev, u32 rsn, int event_type); void mlx5_srq_event(struct mlx5_core_dev *dev, u32 srqn, int event_type); |