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i40iw: Enable level-1 PBL for fast memory registration

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Set the chunk_size to enable level-1 PBL support when the fast memory
page count is more than one.

Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Shiraz Saleem 2016-06-14 16:54:19 -05:00 committed by Doug Ledford
parent 0477e18145
commit 7748e4990d
2 changed files with 6 additions and 0 deletions
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1
drivers/infiniband/hw/i40iw/i40iw.h
View file

@ -114,6 +114,7 @@
#define IW_HMC_OBJ_TYPE_NUM ARRAY_SIZE(iw_hmc_obj_types)
#define IW_CFG_FPM_QP_COUNT 32768
#define I40IW_MAX_PAGES_PER_FMR 512
#define I40IW_MIN_PAGES_PER_FMR 1
#define I40IW_MTU_TO_MSS 40
#define I40IW_DEFAULT_MSS 1460

5
drivers/infiniband/hw/i40iw/i40iw_verbs.c
View file

@ -2150,6 +2150,7 @@ static int i40iw_post_send(struct ib_qp *ibqp,
struct i40iw_sc_dev *dev = &iwqp->iwdev->sc_dev;
struct i40iw_fast_reg_stag_info info;
memset(&info, 0, sizeof(info));
info.access_rights = I40IW_ACCESS_FLAGS_LOCALREAD;
info.access_rights |= i40iw_get_user_access(flags);
info.stag_key = reg_wr(ib_wr)->key & 0xff;
@ -2159,10 +2160,14 @@ static int i40iw_post_send(struct ib_qp *ibqp,
info.addr_type = I40IW_ADDR_TYPE_VA_BASED;
info.va = (void *)(uintptr_t)iwmr->ibmr.iova;
info.total_len = iwmr->ibmr.length;
info.reg_addr_pa = *(u64 *)palloc->level1.addr;
info.first_pm_pbl_index = palloc->level1.idx;
info.local_fence = ib_wr->send_flags & IB_SEND_FENCE;
info.signaled = ib_wr->send_flags & IB_SEND_SIGNALED;
if (iwmr->npages > I40IW_MIN_PAGES_PER_FMR)
info.chunk_size = 1;
if (page_shift == 21)
info.page_size = 1; /* 2M page */