diff options
| author | Max Gurtovoy <maxg@mellanox.com> | 2019-06-11 18:52:41 +0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2019-06-24 11:49:26 -0300 |
| commit | 7c717d3aeeaabbfddd0fe949b501595a2e3469e4 (patch) | |
| tree | b09cfa30d0c7f6cfedda116772fbac62434511b4 /drivers/infiniband | |
| parent | 2cdfcdd8677b277b32d32ef8976802dc5d5f883f (diff) | |
| download | linux-7c717d3aeeaabbfddd0fe949b501595a2e3469e4.tar.bz2 | |
RDMA/core: Add signature attrs element for ib_mr structure
This element will describe the needed characteristics for the signature
operation per signature enabled memory region (type IB_MR_TYPE_INTEGRITY).
Also add meta_length attribute to ib_sig_attrs structure for saving the
mapped metadata length (needed for the new API implementation).
Signed-off-by: Max Gurtovoy <maxg@mellanox.com>
Signed-off-by: Israel Rukshin <israelr@mellanox.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/core/uverbs_cmd.c | 1 | ||||
| -rw-r--r-- | drivers/infiniband/core/verbs.c | 13 |
2 files changed, 13 insertions, 1 deletions
diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c index 689275c2894f..911533081db5 100644 --- a/drivers/infiniband/core/uverbs_cmd.c +++ b/drivers/infiniband/core/uverbs_cmd.c @@ -747,6 +747,7 @@ static int ib_uverbs_reg_mr(struct uverbs_attr_bundle *attrs) mr->pd = pd; mr->type = IB_MR_TYPE_USER; mr->dm = NULL; + mr->sig_attrs = NULL; mr->uobject = uobj; atomic_inc(&pd->usecnt); mr->res.type = RDMA_RESTRACK_MR; diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c index c892022aa8ea..399c0d17b2b9 100644 --- a/drivers/infiniband/core/verbs.c +++ b/drivers/infiniband/core/verbs.c @@ -1976,6 +1976,7 @@ int ib_dereg_mr_user(struct ib_mr *mr, struct ib_udata *udata) { struct ib_pd *pd = mr->pd; struct ib_dm *dm = mr->dm; + struct ib_sig_attrs *sig_attrs = mr->sig_attrs; int ret; rdma_restrack_del(&mr->res); @@ -1984,6 +1985,7 @@ int ib_dereg_mr_user(struct ib_mr *mr, struct ib_udata *udata) atomic_dec(&pd->usecnt); if (dm) atomic_dec(&dm->usecnt); + kfree(sig_attrs); } return ret; @@ -2025,6 +2027,7 @@ struct ib_mr *ib_alloc_mr_user(struct ib_pd *pd, enum ib_mr_type mr_type, mr->res.type = RDMA_RESTRACK_MR; rdma_restrack_kadd(&mr->res); mr->type = mr_type; + mr->sig_attrs = NULL; } return mr; @@ -2048,6 +2051,7 @@ struct ib_mr *ib_alloc_mr_integrity(struct ib_pd *pd, u32 max_num_meta_sg) { struct ib_mr *mr; + struct ib_sig_attrs *sig_attrs; if (!pd->device->ops.alloc_mr_integrity || !pd->device->ops.map_mr_sg_pi) @@ -2056,10 +2060,16 @@ struct ib_mr *ib_alloc_mr_integrity(struct ib_pd *pd, if (!max_num_meta_sg) return ERR_PTR(-EINVAL); + sig_attrs = kzalloc(sizeof(struct ib_sig_attrs), GFP_KERNEL); + if (!sig_attrs) + return ERR_PTR(-ENOMEM); + mr = pd->device->ops.alloc_mr_integrity(pd, max_num_data_sg, max_num_meta_sg); - if (IS_ERR(mr)) + if (IS_ERR(mr)) { + kfree(sig_attrs); return mr; + } mr->device = pd->device; mr->pd = pd; @@ -2070,6 +2080,7 @@ struct ib_mr *ib_alloc_mr_integrity(struct ib_pd *pd, mr->res.type = RDMA_RESTRACK_MR; rdma_restrack_kadd(&mr->res); mr->type = IB_MR_TYPE_INTEGRITY; + mr->sig_attrs = sig_attrs; return mr; } |