hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

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>
This commit is contained in:
Max Gurtovoy 2019-06-11 18:52:41 +03:00 committed by Jason Gunthorpe
parent 2cdfcdd867
commit 7c717d3aee
4 changed files with 16 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/infiniband/core/uverbs_cmd.c
View File

@ -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;

13
drivers/infiniband/core/verbs.c
View File

@ -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;
}

2
include/rdma/ib_verbs.h
View File

@ -1739,7 +1739,7 @@ struct ib_mr {
};
struct ib_dm *dm;
struct ib_sig_attrs *sig_attrs; /* only for IB_MR_TYPE_INTEGRITY MRs */
/*
* Implementation details of the RDMA core, don't use in drivers:
*/

2
include/rdma/signature.h
View File

@ -80,11 +80,13 @@ struct ib_sig_domain {
* @check_mask: bitmask for signature byte check (8 bytes)
* @mem: memory domain layout descriptor.
* @wire: wire domain layout descriptor.
* @meta_length: metadata length
*/
struct ib_sig_attrs {
u8 check_mask;
struct ib_sig_domain mem;
struct ib_sig_domain wire;
int meta_length;
};
enum ib_sig_err_type {