UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

RDMA/bnxt_re: Remove FMR support 

Some issues observed with FMR implementation
while running stress traffic. So removing the
FMR verbs support for now.

Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Selvin Xavier 2017-05-22 03:15:44 -07:00 committed by Doug Ledford
parent 018cf5995d
commit 86816a00ca
3 changed files with 2 additions and 106 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

98
drivers/infiniband/hw/bnxt_re/ib_verbs.c
View File

@ -191,8 +191,8 @@ int bnxt_re_query_device(struct ib_device *ibdev,
ib_attr->max_total_mcast_qp_attach = 0;
ib_attr->max_ah = dev_attr->max_ah;
ib_attr->max_fmr = dev_attr->max_fmr;
ib_attr->max_map_per_fmr = 1; /* ? */
ib_attr->max_fmr = 0;
ib_attr->max_map_per_fmr = 0;
ib_attr->max_srq = dev_attr->max_srq;
ib_attr->max_srq_wr = dev_attr->max_srq_wqes;
@ -3231,100 +3231,6 @@ int bnxt_re_dealloc_mw(struct ib_mw *ib_mw)
return rc;
}
/* Fast Memory Regions */
struct ib_fmr *bnxt_re_alloc_fmr(struct ib_pd *ib_pd, int mr_access_flags,
struct ib_fmr_attr *fmr_attr)
{
struct bnxt_re_pd *pd = container_of(ib_pd, struct bnxt_re_pd, ib_pd);
struct bnxt_re_dev *rdev = pd->rdev;
struct bnxt_re_fmr *fmr;
int rc;
if (fmr_attr->max_pages > MAX_PBL_LVL_2_PGS ||
fmr_attr->max_maps > rdev->dev_attr.max_map_per_fmr) {
dev_err(rdev_to_dev(rdev), "Allocate FMR exceeded Max limit");
return ERR_PTR(-ENOMEM);
}
fmr = kzalloc(sizeof(*fmr), GFP_KERNEL);
if (!fmr)
return ERR_PTR(-ENOMEM);
fmr->rdev = rdev;
fmr->qplib_fmr.pd = &pd->qplib_pd;
fmr->qplib_fmr.type = CMDQ_ALLOCATE_MRW_MRW_FLAGS_PMR;
rc = bnxt_qplib_alloc_mrw(&rdev->qplib_res, &fmr->qplib_fmr);
if (rc)
goto fail;
fmr->qplib_fmr.flags = __from_ib_access_flags(mr_access_flags);
fmr->ib_fmr.lkey = fmr->qplib_fmr.lkey;
fmr->ib_fmr.rkey = fmr->ib_fmr.lkey;
atomic_inc(&rdev->mr_count);
return &fmr->ib_fmr;
fail:
kfree(fmr);
return ERR_PTR(rc);
}
int bnxt_re_map_phys_fmr(struct ib_fmr *ib_fmr, u64 *page_list, int list_len,
u64 iova)
{
struct bnxt_re_fmr *fmr = container_of(ib_fmr, struct bnxt_re_fmr,
ib_fmr);
struct bnxt_re_dev *rdev = fmr->rdev;
int rc;
fmr->qplib_fmr.va = iova;
fmr->qplib_fmr.total_size = list_len * PAGE_SIZE;
rc = bnxt_qplib_reg_mr(&rdev->qplib_res, &fmr->qplib_fmr, page_list,
list_len, true);
if (rc)
dev_err(rdev_to_dev(rdev), "Failed to map FMR for lkey = 0x%x!",
fmr->ib_fmr.lkey);
return rc;
}
int bnxt_re_unmap_fmr(struct list_head *fmr_list)
{
struct bnxt_re_dev *rdev;
struct bnxt_re_fmr *fmr;
struct ib_fmr *ib_fmr;
int rc = 0;
/* Validate each FMRs inside the fmr_list */
list_for_each_entry(ib_fmr, fmr_list, list) {
fmr = container_of(ib_fmr, struct bnxt_re_fmr, ib_fmr);
rdev = fmr->rdev;
if (rdev) {
rc = bnxt_qplib_dereg_mrw(&rdev->qplib_res,
&fmr->qplib_fmr, true);
if (rc)
break;
}
}
return rc;
}
int bnxt_re_dealloc_fmr(struct ib_fmr *ib_fmr)
{
struct bnxt_re_fmr *fmr = container_of(ib_fmr, struct bnxt_re_fmr,
ib_fmr);
struct bnxt_re_dev *rdev = fmr->rdev;
int rc;
rc = bnxt_qplib_free_mrw(&rdev->qplib_res, &fmr->qplib_fmr);
if (rc)
dev_err(rdev_to_dev(rdev), "Failed to free FMR");
kfree(fmr);
atomic_dec(&rdev->mr_count);
return rc;
}
/* uverbs */
struct ib_mr *bnxt_re_reg_user_mr(struct ib_pd *ib_pd, u64 start, u64 length,
u64 virt_addr, int mr_access_flags,

6
drivers/infiniband/hw/bnxt_re/ib_verbs.h
View File

@ -197,12 +197,6 @@ int bnxt_re_dereg_mr(struct ib_mr *mr);
struct ib_mw *bnxt_re_alloc_mw(struct ib_pd *ib_pd, enum ib_mw_type type,
struct ib_udata *udata);
int bnxt_re_dealloc_mw(struct ib_mw *mw);
struct ib_fmr *bnxt_re_alloc_fmr(struct ib_pd *pd, int mr_access_flags,
struct ib_fmr_attr *fmr_attr);
int bnxt_re_map_phys_fmr(struct ib_fmr *fmr, u64 *page_list, int list_len,
u64 iova);
int bnxt_re_unmap_fmr(struct list_head *fmr_list);
int bnxt_re_dealloc_fmr(struct ib_fmr *fmr);
struct ib_mr *bnxt_re_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
u64 virt_addr, int mr_access_flags,
struct ib_udata *udata);

4
drivers/infiniband/hw/bnxt_re/main.c
View File

@ -507,10 +507,6 @@ static int bnxt_re_register_ib(struct bnxt_re_dev *rdev)
ibdev->dereg_mr = bnxt_re_dereg_mr;
ibdev->alloc_mr = bnxt_re_alloc_mr;
ibdev->map_mr_sg = bnxt_re_map_mr_sg;
ibdev->alloc_fmr = bnxt_re_alloc_fmr;
ibdev->map_phys_fmr = bnxt_re_map_phys_fmr;
ibdev->unmap_fmr = bnxt_re_unmap_fmr;
ibdev->dealloc_fmr = bnxt_re_dealloc_fmr;
ibdev->reg_user_mr = bnxt_re_reg_user_mr;
ibdev->alloc_ucontext = bnxt_re_alloc_ucontext;