diff options
| author |   Hariprasad S <hariprasad@chelsio.com> | 2016-02-12 16:10:35 +0530 |
|---|---|---|
| committer |   Doug Ledford <dledford@redhat.com> | 2016-02-29 17:10:15 -0500 |
| commit | ee30f7d507c0f3b3499bbe84d14849a6b5ac9484 (patch) | |
| tree | d0d4adc552a8076624ae66cec4ce504b443a3eb0 | |
| parent | cxgb4/iw_cxgb4: TOS support (diff) | |
| download | linux-dev-ee30f7d507c0f3b3499bbe84d14849a6b5ac9484.tar.xz linux-dev-ee30f7d507c0f3b3499bbe84d14849a6b5ac9484.zip | |
iw_cxgb4: Max fastreg depth depends on DSGL support
The max depth of a fastreg mr depends on whether the device supports
DSGL or not. So compute it dynamically based on the device support and
the module use_dsgl option.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
| -rw-r--r-- | drivers/infiniband/hw/cxgb4/mem.c | 8 | ||||
| -rw-r--r-- | drivers/infiniband/hw/cxgb4/provider.c | 3 | ||||
| -rw-r--r-- | drivers/infiniband/hw/cxgb4/qp.c | 10 |
3 files changed, 11 insertions, 10 deletions
diff --git a/drivers/infiniband/hw/cxgb4/mem.c b/drivers/infiniband/hw/cxgb4/mem.c index 7849890c4781..9274c909cd19 100644 --- a/drivers/infiniband/hw/cxgb4/mem.c +++ b/drivers/infiniband/hw/cxgb4/mem.c @@ -617,12 +617,14 @@ struct ib_mr *c4iw_alloc_mr(struct ib_pd *pd, int ret = 0; int length = roundup(max_num_sg * sizeof(u64), 32); + php = to_c4iw_pd(pd); + rhp = php->rhp; + if (mr_type != IB_MR_TYPE_MEM_REG || - max_num_sg > t4_max_fr_depth(use_dsgl)) + max_num_sg > t4_max_fr_depth(&rhp->rdev.lldi.ulptx_memwrite_dsgl && + use_dsgl)) return ERR_PTR(-EINVAL); - php = to_c4iw_pd(pd); - rhp = php->rhp; mhp = kzalloc(sizeof(*mhp), GFP_KERNEL); if (!mhp) { ret = -ENOMEM; diff --git a/drivers/infiniband/hw/cxgb4/provider.c b/drivers/infiniband/hw/cxgb4/provider.c index ec04272fbdc2..8669f48ebd8e 100644 --- a/drivers/infiniband/hw/cxgb4/provider.c +++ b/drivers/infiniband/hw/cxgb4/provider.c @@ -339,7 +339,8 @@ static int c4iw_query_device(struct ib_device *ibdev, struct ib_device_attr *pro props->max_mr = c4iw_num_stags(&dev->rdev); props->max_pd = T4_MAX_NUM_PD; props->local_ca_ack_delay = 0; - props->max_fast_reg_page_list_len = t4_max_fr_depth(use_dsgl); + props->max_fast_reg_page_list_len = + t4_max_fr_depth(dev->rdev.lldi.ulptx_memwrite_dsgl && use_dsgl); return 0; } diff --git a/drivers/infiniband/hw/cxgb4/qp.c b/drivers/infiniband/hw/cxgb4/qp.c index dadf5f1855b3..d7293132ee86 100644 --- a/drivers/infiniband/hw/cxgb4/qp.c +++ b/drivers/infiniband/hw/cxgb4/qp.c @@ -606,7 +606,7 @@ static int build_rdma_recv(struct c4iw_qp *qhp, union t4_recv_wr *wqe, } static int build_memreg(struct t4_sq *sq, union t4_wr *wqe, - struct ib_reg_wr *wr, u8 *len16, u8 t5dev) + struct ib_reg_wr *wr, u8 *len16, bool dsgl_supported) { struct c4iw_mr *mhp = to_c4iw_mr(wr->mr); struct fw_ri_immd *imdp; @@ -615,7 +615,7 @@ static int build_memreg(struct t4_sq *sq, union t4_wr *wqe, int pbllen = roundup(mhp->mpl_len * sizeof(u64), 32); int rem; - if (mhp->mpl_len > t4_max_fr_depth(use_dsgl)) + if (mhp->mpl_len > t4_max_fr_depth(dsgl_supported && use_dsgl)) return -EINVAL; wqe->fr.qpbinde_to_dcacpu = 0; @@ -629,7 +629,7 @@ static int build_memreg(struct t4_sq *sq, union t4_wr *wqe, wqe->fr.va_lo_fbo = cpu_to_be32(mhp->ibmr.iova & 0xffffffff); - if (t5dev && use_dsgl && (pbllen > max_fr_immd)) { + if (dsgl_supported && use_dsgl && (pbllen > max_fr_immd)) { struct fw_ri_dsgl *sglp; for (i = 0; i < mhp->mpl_len; i++) @@ -808,9 +808,7 @@ int c4iw_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, fw_opcode = FW_RI_FR_NSMR_WR; swsqe->opcode = FW_RI_FAST_REGISTER; err = build_memreg(&qhp->wq.sq, wqe, reg_wr(wr), &len16, - is_t5( - qhp->rhp->rdev.lldi.adapter_type) ? - 1 : 0); + qhp->rhp->rdev.lldi.ulptx_memwrite_dsgl); break; case IB_WR_LOCAL_INV: if (wr->send_flags & IB_SEND_FENCE) |