diff options
| author | Moni Shoua <monis@mellanox.com> | 2018-12-11 13:37:53 +0200 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2018-12-18 15:26:19 -0700 |
| commit | 813e90b1aeaa550641332625174d57edb15bc8bd (patch) | |
| tree | 00699c511ed101aaaa630392093cc9505c7474af /drivers/infiniband/hw/mlx5/mlx5_ib.h | |
| parent | ad8a4496757f6f7344011a20a07195bd27e3989c (diff) | |
IB/mlx5: Add advise_mr() support
The verb advise_mr() is used to give advice to the kernel about an address
range that belongs to a MR. Implement the verb and register it on the
device. The current implementation supports the only known advice to date,
prefetch.
Signed-off-by: Moni Shoua <monis@mellanox.com>
Reviewed-by: Guy Levi <guyle@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband/hw/mlx5/mlx5_ib.h')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/mlx5_ib.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h index 1285ac11bb70..f245b5d8a3bc 100644 --- a/drivers/infiniband/hw/mlx5/mlx5_ib.h +++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h @@ -923,6 +923,7 @@ struct mlx5_ib_dev { */ struct srcu_struct mr_srcu; u32 null_mkey; + struct workqueue_struct *advise_mr_wq; #endif struct mlx5_ib_flow_db *flow_db; /* protect resources needed as part of reset flow */ @@ -1085,6 +1086,12 @@ struct ib_mr *mlx5_ib_get_dma_mr(struct ib_pd *pd, int acc); struct ib_mr *mlx5_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, u64 virt_addr, int access_flags, struct ib_udata *udata); +int mlx5_ib_advise_mr(struct ib_pd *pd, + enum ib_uverbs_advise_mr_advice advice, + u32 flags, + struct ib_sge *sg_list, + u32 num_sge, + struct uverbs_attr_bundle *attrs); struct ib_mw *mlx5_ib_alloc_mw(struct ib_pd *pd, enum ib_mw_type type, struct ib_udata *udata); int mlx5_ib_dealloc_mw(struct ib_mw *mw); @@ -1182,6 +1189,10 @@ void mlx5_ib_invalidate_range(struct ib_umem_odp *umem_odp, unsigned long start, void mlx5_odp_init_mr_cache_entry(struct mlx5_cache_ent *ent); void mlx5_odp_populate_klm(struct mlx5_klm *pklm, size_t offset, size_t nentries, struct mlx5_ib_mr *mr, int flags); + +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); #else /* CONFIG_INFINIBAND_ON_DEMAND_PAGING */ static inline void mlx5_ib_internal_fill_odp_caps(struct mlx5_ib_dev *dev) { @@ -1197,6 +1208,13 @@ static inline void mlx5_odp_populate_klm(struct mlx5_klm *pklm, size_t offset, size_t nentries, struct mlx5_ib_mr *mr, int flags) {} +static 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) +{ + return -EOPNOTSUPP; +} #endif /* CONFIG_INFINIBAND_ON_DEMAND_PAGING */ /* Needed for rep profile */ |