diff options
Diffstat (limited to 'drivers/infiniband/hw/mlx5/mr.c')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/mr.c | 42 |
1 files changed, 35 insertions, 7 deletions
diff --git a/drivers/infiniband/hw/mlx5/mr.c b/drivers/infiniband/hw/mlx5/mr.c index 9b195d65a13e..1bd8c1b1dba1 100644 --- a/drivers/infiniband/hw/mlx5/mr.c +++ b/drivers/infiniband/hw/mlx5/mr.c @@ -73,7 +73,8 @@ static int destroy_mkey(struct mlx5_ib_dev *dev, struct mlx5_ib_mr *mr) #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING /* Wait until all page fault handlers using the mr complete. */ - synchronize_srcu(&dev->mr_srcu); + if (mr->umem && mr->umem->is_odp) + synchronize_srcu(&dev->mr_srcu); #endif return err; @@ -237,6 +238,9 @@ static void remove_keys(struct mlx5_ib_dev *dev, int c, int num) { struct mlx5_mr_cache *cache = &dev->cache; struct mlx5_cache_ent *ent = &cache->ent[c]; +#ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING + bool odp_mkey_exist = false; +#endif struct mlx5_ib_mr *tmp_mr; struct mlx5_ib_mr *mr; LIST_HEAD(del_list); @@ -249,6 +253,10 @@ static void remove_keys(struct mlx5_ib_dev *dev, int c, int num) break; } mr = list_first_entry(&ent->head, struct mlx5_ib_mr, list); +#ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING + if (mr->umem && mr->umem->is_odp) + odp_mkey_exist = true; +#endif list_move(&mr->list, &del_list); ent->cur--; ent->size--; @@ -257,7 +265,8 @@ static void remove_keys(struct mlx5_ib_dev *dev, int c, int num) } #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING - synchronize_srcu(&dev->mr_srcu); + if (odp_mkey_exist) + synchronize_srcu(&dev->mr_srcu); #endif list_for_each_entry_safe(mr, tmp_mr, &del_list, list) { @@ -572,6 +581,7 @@ static void clean_keys(struct mlx5_ib_dev *dev, int c) { struct mlx5_mr_cache *cache = &dev->cache; struct mlx5_cache_ent *ent = &cache->ent[c]; + bool odp_mkey_exist = false; struct mlx5_ib_mr *tmp_mr; struct mlx5_ib_mr *mr; LIST_HEAD(del_list); @@ -584,6 +594,8 @@ static void clean_keys(struct mlx5_ib_dev *dev, int c) break; } mr = list_first_entry(&ent->head, struct mlx5_ib_mr, list); + if (mr->umem && mr->umem->is_odp) + odp_mkey_exist = true; list_move(&mr->list, &del_list); ent->cur--; ent->size--; @@ -592,7 +604,8 @@ static void clean_keys(struct mlx5_ib_dev *dev, int c) } #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING - synchronize_srcu(&dev->mr_srcu); + if (odp_mkey_exist) + synchronize_srcu(&dev->mr_srcu); #endif list_for_each_entry_safe(mr, tmp_mr, &del_list, list) { @@ -1211,7 +1224,7 @@ err_1: return ERR_PTR(err); } -static void set_mr_fileds(struct mlx5_ib_dev *dev, struct mlx5_ib_mr *mr, +static void set_mr_fields(struct mlx5_ib_dev *dev, struct mlx5_ib_mr *mr, int npages, u64 length, int access_flags) { mr->npages = npages; @@ -1267,7 +1280,7 @@ static struct ib_mr *mlx5_ib_get_memic_mr(struct ib_pd *pd, u64 memic_addr, kfree(in); mr->umem = NULL; - set_mr_fileds(dev, mr, 0, length, acc); + set_mr_fields(dev, mr, 0, length, acc); return &mr->ibmr; @@ -1280,6 +1293,21 @@ err_free: return ERR_PTR(err); } +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) +{ + if (advice != IB_UVERBS_ADVISE_MR_ADVICE_PREFETCH && + advice != IB_UVERBS_ADVISE_MR_ADVICE_PREFETCH_WRITE) + return -EOPNOTSUPP; + + return mlx5_ib_advise_mr_prefetch(pd, advice, flags, + sg_list, num_sge); +} + struct ib_mr *mlx5_ib_reg_dm_mr(struct ib_pd *pd, struct ib_dm *dm, struct ib_dm_mr_attr *attr, struct uverbs_attr_bundle *attrs) @@ -1369,7 +1397,7 @@ struct ib_mr *mlx5_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, mlx5_ib_dbg(dev, "mkey 0x%x\n", mr->mmkey.key); mr->umem = umem; - set_mr_fileds(dev, mr, npages, length, access_flags); + set_mr_fields(dev, mr, npages, length, access_flags); #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING update_odp_mr(mr); @@ -1536,7 +1564,7 @@ int mlx5_ib_rereg_user_mr(struct ib_mr *ib_mr, int flags, u64 start, goto err; } - set_mr_fileds(dev, mr, npages, len, access_flags); + set_mr_fields(dev, mr, npages, len, access_flags); #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING update_odp_mr(mr); |