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nes: Support ib_alloc_mr verb

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Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Sagi Grimberg
2015-07-30 10:32:46 +03:00
committed by Doug Ledford
parent f683d3bdbb
commit e02e4d554d
1 changed files with 14 additions and 5 deletions
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19
drivers/infiniband/hw/nes/nes_verbs.c
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@@ -375,9 +375,11 @@ static int alloc_fast_reg_mr(struct nes_device *nesdev, struct nes_pd *nespd,
} }
/* /*
* nes_alloc_fast_reg_mr * nes_alloc_mr
*/ */
static struct ib_mr *nes_alloc_fast_reg_mr(struct ib_pd *ibpd, int max_page_list_len) static struct ib_mr *nes_alloc_mr(struct ib_pd *ibpd,
enum ib_mr_type mr_type,
u32 max_num_sg)
{ {
struct nes_pd *nespd = to_nespd(ibpd); struct nes_pd *nespd = to_nespd(ibpd);
struct nes_vnic *nesvnic = to_nesvnic(ibpd->device); struct nes_vnic *nesvnic = to_nesvnic(ibpd->device);
@@ -393,11 +395,18 @@ static struct ib_mr *nes_alloc_fast_reg_mr(struct ib_pd *ibpd, int max_page_list
u32 stag; u32 stag;
int ret; int ret;
struct ib_mr *ibmr; struct ib_mr *ibmr;
if (mr_type != IB_MR_TYPE_MEM_REG)
return ERR_PTR(-EINVAL);
if (max_num_sg > (NES_4K_PBL_CHUNK_SIZE / sizeof(u64)))
return ERR_PTR(-E2BIG);
/* /*
* Note: Set to always use a fixed length single page entry PBL. This is to allow * Note: Set to always use a fixed length single page entry PBL. This is to allow
* for the fast_reg_mr operation to always know the size of the PBL. * for the fast_reg_mr operation to always know the size of the PBL.
*/ */
if (max_page_list_len > (NES_4K_PBL_CHUNK_SIZE / sizeof(u64))) if (max_num_sg > (NES_4K_PBL_CHUNK_SIZE / sizeof(u64)))
return ERR_PTR(-E2BIG); return ERR_PTR(-E2BIG);
get_random_bytes(&next_stag_index, sizeof(next_stag_index)); get_random_bytes(&next_stag_index, sizeof(next_stag_index));
@@ -424,7 +433,7 @@ static struct ib_mr *nes_alloc_fast_reg_mr(struct ib_pd *ibpd, int max_page_list
nes_debug(NES_DBG_MR, "Allocating STag 0x%08X index = 0x%08X\n", nes_debug(NES_DBG_MR, "Allocating STag 0x%08X index = 0x%08X\n",
stag, stag_index); stag, stag_index);
ret = alloc_fast_reg_mr(nesdev, nespd, stag, max_page_list_len); ret = alloc_fast_reg_mr(nesdev, nespd, stag, max_num_sg);
if (ret == 0) { if (ret == 0) {
nesmr->ibmr.rkey = stag; nesmr->ibmr.rkey = stag;
@@ -3929,7 +3938,7 @@ struct nes_ib_device *nes_init_ofa_device(struct net_device *netdev)
nesibdev->ibdev.dealloc_mw = nes_dealloc_mw; nesibdev->ibdev.dealloc_mw = nes_dealloc_mw;
nesibdev->ibdev.bind_mw = nes_bind_mw; nesibdev->ibdev.bind_mw = nes_bind_mw;
nesibdev->ibdev.alloc_fast_reg_mr = nes_alloc_fast_reg_mr; nesibdev->ibdev.alloc_mr = nes_alloc_mr;
nesibdev->ibdev.alloc_fast_reg_page_list = nes_alloc_fast_reg_page_list; nesibdev->ibdev.alloc_fast_reg_page_list = nes_alloc_fast_reg_page_list;
nesibdev->ibdev.free_fast_reg_page_list = nes_free_fast_reg_page_list; nesibdev->ibdev.free_fast_reg_page_list = nes_free_fast_reg_page_list;