diff options
Diffstat (limited to '')
-rw-r--r-- | drivers/infiniband/hw/irdma/uk.c | 89 | ||||
-rw-r--r-- | drivers/infiniband/hw/irdma/user.h | 10 | ||||
-rw-r--r-- | drivers/infiniband/hw/irdma/verbs.c | 187 | ||||
-rw-r--r-- | drivers/infiniband/hw/irdma/verbs.h | 3 |
4 files changed, 199 insertions, 90 deletions
diff --git a/drivers/infiniband/hw/irdma/uk.c b/drivers/infiniband/hw/irdma/uk.c index 280d633d4..d691cdef5 100644 --- a/drivers/infiniband/hw/irdma/uk.c +++ b/drivers/infiniband/hw/irdma/uk.c @@ -1415,6 +1415,78 @@ static void irdma_setup_connection_wqes(struct irdma_qp_uk *qp, } /** + * irdma_uk_calc_shift_wq - calculate WQE shift for both SQ and RQ + * @ukinfo: qp initialization info + * @sq_shift: Returns shift of SQ + * @rq_shift: Returns shift of RQ + */ +void irdma_uk_calc_shift_wq(struct irdma_qp_uk_init_info *ukinfo, u8 *sq_shift, + u8 *rq_shift) +{ + bool imm_support = ukinfo->uk_attrs->hw_rev >= IRDMA_GEN_2; + + irdma_get_wqe_shift(ukinfo->uk_attrs, + imm_support ? ukinfo->max_sq_frag_cnt + 1 : + ukinfo->max_sq_frag_cnt, + ukinfo->max_inline_data, sq_shift); + + irdma_get_wqe_shift(ukinfo->uk_attrs, ukinfo->max_rq_frag_cnt, 0, + rq_shift); + + if (ukinfo->uk_attrs->hw_rev == IRDMA_GEN_1) { + if (ukinfo->abi_ver > 4) + *rq_shift = IRDMA_MAX_RQ_WQE_SHIFT_GEN1; + } +} + +/** + * irdma_uk_calc_depth_shift_sq - calculate depth and shift for SQ size. + * @ukinfo: qp initialization info + * @sq_depth: Returns depth of SQ + * @sq_shift: Returns shift of SQ + */ +int irdma_uk_calc_depth_shift_sq(struct irdma_qp_uk_init_info *ukinfo, + u32 *sq_depth, u8 *sq_shift) +{ + bool imm_support = ukinfo->uk_attrs->hw_rev >= IRDMA_GEN_2; + int status; + + irdma_get_wqe_shift(ukinfo->uk_attrs, + imm_support ? ukinfo->max_sq_frag_cnt + 1 : + ukinfo->max_sq_frag_cnt, + ukinfo->max_inline_data, sq_shift); + status = irdma_get_sqdepth(ukinfo->uk_attrs, ukinfo->sq_size, + *sq_shift, sq_depth); + + return status; +} + +/** + * irdma_uk_calc_depth_shift_rq - calculate depth and shift for RQ size. + * @ukinfo: qp initialization info + * @rq_depth: Returns depth of RQ + * @rq_shift: Returns shift of RQ + */ +int irdma_uk_calc_depth_shift_rq(struct irdma_qp_uk_init_info *ukinfo, + u32 *rq_depth, u8 *rq_shift) +{ + int status; + + irdma_get_wqe_shift(ukinfo->uk_attrs, ukinfo->max_rq_frag_cnt, 0, + rq_shift); + + if (ukinfo->uk_attrs->hw_rev == IRDMA_GEN_1) { + if (ukinfo->abi_ver > 4) + *rq_shift = IRDMA_MAX_RQ_WQE_SHIFT_GEN1; + } + + status = irdma_get_rqdepth(ukinfo->uk_attrs, ukinfo->rq_size, + *rq_shift, rq_depth); + + return status; +} + +/** * irdma_uk_qp_init - initialize shared qp * @qp: hw qp (user and kernel) * @info: qp initialization info @@ -1428,23 +1500,12 @@ int irdma_uk_qp_init(struct irdma_qp_uk *qp, struct irdma_qp_uk_init_info *info) { int ret_code = 0; u32 sq_ring_size; - u8 sqshift, rqshift; qp->uk_attrs = info->uk_attrs; if (info->max_sq_frag_cnt > qp->uk_attrs->max_hw_wq_frags || info->max_rq_frag_cnt > qp->uk_attrs->max_hw_wq_frags) return -EINVAL; - irdma_get_wqe_shift(qp->uk_attrs, info->max_rq_frag_cnt, 0, &rqshift); - if (qp->uk_attrs->hw_rev == IRDMA_GEN_1) { - irdma_get_wqe_shift(qp->uk_attrs, info->max_sq_frag_cnt, - info->max_inline_data, &sqshift); - if (info->abi_ver > 4) - rqshift = IRDMA_MAX_RQ_WQE_SHIFT_GEN1; - } else { - irdma_get_wqe_shift(qp->uk_attrs, info->max_sq_frag_cnt + 1, - info->max_inline_data, &sqshift); - } qp->qp_caps = info->qp_caps; qp->sq_base = info->sq; qp->rq_base = info->rq; @@ -1458,7 +1519,7 @@ int irdma_uk_qp_init(struct irdma_qp_uk *qp, struct irdma_qp_uk_init_info *info) qp->sq_size = info->sq_size; qp->push_mode = false; qp->max_sq_frag_cnt = info->max_sq_frag_cnt; - sq_ring_size = qp->sq_size << sqshift; + sq_ring_size = qp->sq_size << info->sq_shift; IRDMA_RING_INIT(qp->sq_ring, sq_ring_size); IRDMA_RING_INIT(qp->initial_ring, sq_ring_size); if (info->first_sq_wq) { @@ -1473,9 +1534,9 @@ int irdma_uk_qp_init(struct irdma_qp_uk *qp, struct irdma_qp_uk_init_info *info) qp->rq_size = info->rq_size; qp->max_rq_frag_cnt = info->max_rq_frag_cnt; qp->max_inline_data = info->max_inline_data; - qp->rq_wqe_size = rqshift; + qp->rq_wqe_size = info->rq_shift; IRDMA_RING_INIT(qp->rq_ring, qp->rq_size); - qp->rq_wqe_size_multiplier = 1 << rqshift; + qp->rq_wqe_size_multiplier = 1 << info->rq_shift; if (qp->uk_attrs->hw_rev == IRDMA_GEN_1) qp->wqe_ops = iw_wqe_uk_ops_gen_1; else diff --git a/drivers/infiniband/hw/irdma/user.h b/drivers/infiniband/hw/irdma/user.h index d0cdf609f..1e0e1a71d 100644 --- a/drivers/infiniband/hw/irdma/user.h +++ b/drivers/infiniband/hw/irdma/user.h @@ -295,6 +295,12 @@ void irdma_uk_cq_init(struct irdma_cq_uk *cq, struct irdma_cq_uk_init_info *info); int irdma_uk_qp_init(struct irdma_qp_uk *qp, struct irdma_qp_uk_init_info *info); +void irdma_uk_calc_shift_wq(struct irdma_qp_uk_init_info *ukinfo, u8 *sq_shift, + u8 *rq_shift); +int irdma_uk_calc_depth_shift_sq(struct irdma_qp_uk_init_info *ukinfo, + u32 *sq_depth, u8 *sq_shift); +int irdma_uk_calc_depth_shift_rq(struct irdma_qp_uk_init_info *ukinfo, + u32 *rq_depth, u8 *rq_shift); struct irdma_sq_uk_wr_trk_info { u64 wrid; u32 wr_len; @@ -374,8 +380,12 @@ struct irdma_qp_uk_init_info { u32 max_sq_frag_cnt; u32 max_rq_frag_cnt; u32 max_inline_data; + u32 sq_depth; + u32 rq_depth; u8 first_sq_wq; u8 type; + u8 sq_shift; + u8 rq_shift; int abi_ver; bool legacy_mode; }; diff --git a/drivers/infiniband/hw/irdma/verbs.c b/drivers/infiniband/hw/irdma/verbs.c index 42c671f20..76c5f461f 100644 --- a/drivers/infiniband/hw/irdma/verbs.c +++ b/drivers/infiniband/hw/irdma/verbs.c @@ -277,7 +277,7 @@ static int irdma_alloc_ucontext(struct ib_ucontext *uctx, struct irdma_alloc_ucontext_req req = {}; struct irdma_alloc_ucontext_resp uresp = {}; struct irdma_ucontext *ucontext = to_ucontext(uctx); - struct irdma_uk_attrs *uk_attrs; + struct irdma_uk_attrs *uk_attrs = &iwdev->rf->sc_dev.hw_attrs.uk_attrs; if (udata->inlen < IRDMA_ALLOC_UCTX_MIN_REQ_LEN || udata->outlen < IRDMA_ALLOC_UCTX_MIN_RESP_LEN) @@ -292,7 +292,9 @@ static int irdma_alloc_ucontext(struct ib_ucontext *uctx, ucontext->iwdev = iwdev; ucontext->abi_ver = req.userspace_ver; - uk_attrs = &iwdev->rf->sc_dev.hw_attrs.uk_attrs; + if (req.comp_mask & IRDMA_ALLOC_UCTX_USE_RAW_ATTR) + ucontext->use_raw_attrs = true; + /* GEN_1 legacy support with libi40iw */ if (udata->outlen == IRDMA_ALLOC_UCTX_MIN_RESP_LEN) { if (uk_attrs->hw_rev != IRDMA_GEN_1) @@ -327,6 +329,7 @@ static int irdma_alloc_ucontext(struct ib_ucontext *uctx, uresp.max_hw_cq_size = uk_attrs->max_hw_cq_size; uresp.min_hw_cq_size = uk_attrs->min_hw_cq_size; uresp.hw_rev = uk_attrs->hw_rev; + uresp.comp_mask |= IRDMA_ALLOC_UCTX_USE_RAW_ATTR; if (ib_copy_to_udata(udata, &uresp, min(sizeof(uresp), udata->outlen))) { rdma_user_mmap_entry_remove(ucontext->db_mmap_entry); @@ -567,6 +570,86 @@ static void irdma_setup_virt_qp(struct irdma_device *iwdev, } /** + * irdma_setup_umode_qp - setup sq and rq size in user mode qp + * @iwdev: iwarp device + * @iwqp: qp ptr (user or kernel) + * @info: initialize info to return + * @init_attr: Initial QP create attributes + */ +static int irdma_setup_umode_qp(struct ib_udata *udata, + struct irdma_device *iwdev, + struct irdma_qp *iwqp, + struct irdma_qp_init_info *info, + struct ib_qp_init_attr *init_attr) +{ + struct irdma_ucontext *ucontext = rdma_udata_to_drv_context(udata, + struct irdma_ucontext, ibucontext); + struct irdma_qp_uk_init_info *ukinfo = &info->qp_uk_init_info; + struct irdma_create_qp_req req; + unsigned long flags; + int ret; + + ret = ib_copy_from_udata(&req, udata, + min(sizeof(req), udata->inlen)); + if (ret) { + ibdev_dbg(&iwdev->ibdev, "VERBS: ib_copy_from_data fail\n"); + return ret; + } + + iwqp->ctx_info.qp_compl_ctx = req.user_compl_ctx; + iwqp->user_mode = 1; + if (req.user_wqe_bufs) { + info->qp_uk_init_info.legacy_mode = ucontext->legacy_mode; + spin_lock_irqsave(&ucontext->qp_reg_mem_list_lock, flags); + iwqp->iwpbl = irdma_get_pbl((unsigned long)req.user_wqe_bufs, + &ucontext->qp_reg_mem_list); + spin_unlock_irqrestore(&ucontext->qp_reg_mem_list_lock, flags); + + if (!iwqp->iwpbl) { + ret = -ENODATA; + ibdev_dbg(&iwdev->ibdev, "VERBS: no pbl info\n"); + return ret; + } + } + + if (!ucontext->use_raw_attrs) { + /** + * Maintain backward compat with older ABI which passes sq and + * rq depth in quanta in cap.max_send_wr and cap.max_recv_wr. + * There is no way to compute the correct value of + * iwqp->max_send_wr/max_recv_wr in the kernel. + */ + iwqp->max_send_wr = init_attr->cap.max_send_wr; + iwqp->max_recv_wr = init_attr->cap.max_recv_wr; + ukinfo->sq_size = init_attr->cap.max_send_wr; + ukinfo->rq_size = init_attr->cap.max_recv_wr; + irdma_uk_calc_shift_wq(ukinfo, &ukinfo->sq_shift, + &ukinfo->rq_shift); + } else { + ret = irdma_uk_calc_depth_shift_sq(ukinfo, &ukinfo->sq_depth, + &ukinfo->sq_shift); + if (ret) + return ret; + + ret = irdma_uk_calc_depth_shift_rq(ukinfo, &ukinfo->rq_depth, + &ukinfo->rq_shift); + if (ret) + return ret; + + iwqp->max_send_wr = + (ukinfo->sq_depth - IRDMA_SQ_RSVD) >> ukinfo->sq_shift; + iwqp->max_recv_wr = + (ukinfo->rq_depth - IRDMA_RQ_RSVD) >> ukinfo->rq_shift; + ukinfo->sq_size = ukinfo->sq_depth >> ukinfo->sq_shift; + ukinfo->rq_size = ukinfo->rq_depth >> ukinfo->rq_shift; + } + + irdma_setup_virt_qp(iwdev, iwqp, info); + + return 0; +} + +/** * irdma_setup_kmode_qp - setup initialization for kernel mode qp * @iwdev: iwarp device * @iwqp: qp ptr (user or kernel) @@ -579,40 +662,28 @@ static int irdma_setup_kmode_qp(struct irdma_device *iwdev, struct ib_qp_init_attr *init_attr) { struct irdma_dma_mem *mem = &iwqp->kqp.dma_mem; - u32 sqdepth, rqdepth; - u8 sqshift, rqshift; u32 size; int status; struct irdma_qp_uk_init_info *ukinfo = &info->qp_uk_init_info; - struct irdma_uk_attrs *uk_attrs = &iwdev->rf->sc_dev.hw_attrs.uk_attrs; - irdma_get_wqe_shift(uk_attrs, - uk_attrs->hw_rev >= IRDMA_GEN_2 ? ukinfo->max_sq_frag_cnt + 1 : - ukinfo->max_sq_frag_cnt, - ukinfo->max_inline_data, &sqshift); - status = irdma_get_sqdepth(uk_attrs, ukinfo->sq_size, sqshift, - &sqdepth); + status = irdma_uk_calc_depth_shift_sq(ukinfo, &ukinfo->sq_depth, + &ukinfo->sq_shift); if (status) return status; - if (uk_attrs->hw_rev == IRDMA_GEN_1) - rqshift = IRDMA_MAX_RQ_WQE_SHIFT_GEN1; - else - irdma_get_wqe_shift(uk_attrs, ukinfo->max_rq_frag_cnt, 0, - &rqshift); - - status = irdma_get_rqdepth(uk_attrs, ukinfo->rq_size, rqshift, - &rqdepth); + status = irdma_uk_calc_depth_shift_rq(ukinfo, &ukinfo->rq_depth, + &ukinfo->rq_shift); if (status) return status; iwqp->kqp.sq_wrid_mem = - kcalloc(sqdepth, sizeof(*iwqp->kqp.sq_wrid_mem), GFP_KERNEL); + kcalloc(ukinfo->sq_depth, sizeof(*iwqp->kqp.sq_wrid_mem), GFP_KERNEL); if (!iwqp->kqp.sq_wrid_mem) return -ENOMEM; iwqp->kqp.rq_wrid_mem = - kcalloc(rqdepth, sizeof(*iwqp->kqp.rq_wrid_mem), GFP_KERNEL); + kcalloc(ukinfo->rq_depth, sizeof(*iwqp->kqp.rq_wrid_mem), GFP_KERNEL); + if (!iwqp->kqp.rq_wrid_mem) { kfree(iwqp->kqp.sq_wrid_mem); iwqp->kqp.sq_wrid_mem = NULL; @@ -622,7 +693,7 @@ static int irdma_setup_kmode_qp(struct irdma_device *iwdev, ukinfo->sq_wrtrk_array = iwqp->kqp.sq_wrid_mem; ukinfo->rq_wrid_array = iwqp->kqp.rq_wrid_mem; - size = (sqdepth + rqdepth) * IRDMA_QP_WQE_MIN_SIZE; + size = (ukinfo->sq_depth + ukinfo->rq_depth) * IRDMA_QP_WQE_MIN_SIZE; size += (IRDMA_SHADOW_AREA_SIZE << 3); mem->size = ALIGN(size, 256); @@ -638,16 +709,18 @@ static int irdma_setup_kmode_qp(struct irdma_device *iwdev, ukinfo->sq = mem->va; info->sq_pa = mem->pa; - ukinfo->rq = &ukinfo->sq[sqdepth]; - info->rq_pa = info->sq_pa + (sqdepth * IRDMA_QP_WQE_MIN_SIZE); - ukinfo->shadow_area = ukinfo->rq[rqdepth].elem; - info->shadow_area_pa = info->rq_pa + (rqdepth * IRDMA_QP_WQE_MIN_SIZE); - ukinfo->sq_size = sqdepth >> sqshift; - ukinfo->rq_size = rqdepth >> rqshift; - ukinfo->qp_id = iwqp->ibqp.qp_num; - - init_attr->cap.max_send_wr = (sqdepth - IRDMA_SQ_RSVD) >> sqshift; - init_attr->cap.max_recv_wr = (rqdepth - IRDMA_RQ_RSVD) >> rqshift; + ukinfo->rq = &ukinfo->sq[ukinfo->sq_depth]; + info->rq_pa = info->sq_pa + (ukinfo->sq_depth * IRDMA_QP_WQE_MIN_SIZE); + ukinfo->shadow_area = ukinfo->rq[ukinfo->rq_depth].elem; + info->shadow_area_pa = + info->rq_pa + (ukinfo->rq_depth * IRDMA_QP_WQE_MIN_SIZE); + ukinfo->sq_size = ukinfo->sq_depth >> ukinfo->sq_shift; + ukinfo->rq_size = ukinfo->rq_depth >> ukinfo->rq_shift; + + iwqp->max_send_wr = (ukinfo->sq_depth - IRDMA_SQ_RSVD) >> ukinfo->sq_shift; + iwqp->max_recv_wr = (ukinfo->rq_depth - IRDMA_RQ_RSVD) >> ukinfo->rq_shift; + init_attr->cap.max_send_wr = iwqp->max_send_wr; + init_attr->cap.max_recv_wr = iwqp->max_recv_wr; return 0; } @@ -805,18 +878,14 @@ static int irdma_create_qp(struct ib_qp *ibqp, struct irdma_device *iwdev = to_iwdev(ibpd->device); struct irdma_pci_f *rf = iwdev->rf; struct irdma_qp *iwqp = to_iwqp(ibqp); - struct irdma_create_qp_req req = {}; struct irdma_create_qp_resp uresp = {}; u32 qp_num = 0; int err_code; - int sq_size; - int rq_size; struct irdma_sc_qp *qp; struct irdma_sc_dev *dev = &rf->sc_dev; struct irdma_uk_attrs *uk_attrs = &dev->hw_attrs.uk_attrs; struct irdma_qp_init_info init_info = {}; struct irdma_qp_host_ctx_info *ctx_info; - unsigned long flags; err_code = irdma_validate_qp_attrs(init_attr, iwdev); if (err_code) @@ -826,13 +895,10 @@ static int irdma_create_qp(struct ib_qp *ibqp, udata->outlen < IRDMA_CREATE_QP_MIN_RESP_LEN)) return -EINVAL; - sq_size = init_attr->cap.max_send_wr; - rq_size = init_attr->cap.max_recv_wr; - init_info.vsi = &iwdev->vsi; init_info.qp_uk_init_info.uk_attrs = uk_attrs; - init_info.qp_uk_init_info.sq_size = sq_size; - init_info.qp_uk_init_info.rq_size = rq_size; + init_info.qp_uk_init_info.sq_size = init_attr->cap.max_send_wr; + init_info.qp_uk_init_info.rq_size = init_attr->cap.max_recv_wr; init_info.qp_uk_init_info.max_sq_frag_cnt = init_attr->cap.max_send_sge; init_info.qp_uk_init_info.max_rq_frag_cnt = init_attr->cap.max_recv_sge; init_info.qp_uk_init_info.max_inline_data = init_attr->cap.max_inline_data; @@ -874,7 +940,7 @@ static int irdma_create_qp(struct ib_qp *ibqp, iwqp->host_ctx.size = IRDMA_QP_CTX_SIZE; init_info.pd = &iwpd->sc_pd; - init_info.qp_uk_init_info.qp_id = iwqp->ibqp.qp_num; + init_info.qp_uk_init_info.qp_id = qp_num; if (!rdma_protocol_roce(&iwdev->ibdev, 1)) init_info.qp_uk_init_info.first_sq_wq = 1; iwqp->ctx_info.qp_compl_ctx = (uintptr_t)qp; @@ -882,36 +948,9 @@ static int irdma_create_qp(struct ib_qp *ibqp, init_waitqueue_head(&iwqp->mod_qp_waitq); if (udata) { - err_code = ib_copy_from_udata(&req, udata, - min(sizeof(req), udata->inlen)); - if (err_code) { - ibdev_dbg(&iwdev->ibdev, - "VERBS: ib_copy_from_data fail\n"); - goto error; - } - - iwqp->ctx_info.qp_compl_ctx = req.user_compl_ctx; - iwqp->user_mode = 1; - if (req.user_wqe_bufs) { - struct irdma_ucontext *ucontext = - rdma_udata_to_drv_context(udata, - struct irdma_ucontext, - ibucontext); - - init_info.qp_uk_init_info.legacy_mode = ucontext->legacy_mode; - spin_lock_irqsave(&ucontext->qp_reg_mem_list_lock, flags); - iwqp->iwpbl = irdma_get_pbl((unsigned long)req.user_wqe_bufs, - &ucontext->qp_reg_mem_list); - spin_unlock_irqrestore(&ucontext->qp_reg_mem_list_lock, flags); - - if (!iwqp->iwpbl) { - err_code = -ENODATA; - ibdev_dbg(&iwdev->ibdev, "VERBS: no pbl info\n"); - goto error; - } - } init_info.qp_uk_init_info.abi_ver = iwpd->sc_pd.abi_ver; - irdma_setup_virt_qp(iwdev, iwqp, &init_info); + err_code = irdma_setup_umode_qp(udata, iwdev, iwqp, &init_info, + init_attr); } else { INIT_DELAYED_WORK(&iwqp->dwork_flush, irdma_flush_worker); init_info.qp_uk_init_info.abi_ver = IRDMA_ABI_VER; @@ -966,8 +1005,6 @@ static int irdma_create_qp(struct ib_qp *ibqp, spin_lock_init(&iwqp->sc_qp.pfpdu.lock); iwqp->sig_all = (init_attr->sq_sig_type == IB_SIGNAL_ALL_WR) ? 1 : 0; rf->qp_table[qp_num] = iwqp; - iwqp->max_send_wr = sq_size; - iwqp->max_recv_wr = rq_size; if (rdma_protocol_roce(&iwdev->ibdev, 1)) { if (dev->ws_add(&iwdev->vsi, 0)) { @@ -988,8 +1025,8 @@ static int irdma_create_qp(struct ib_qp *ibqp, if (rdma_protocol_iwarp(&iwdev->ibdev, 1)) uresp.lsmm = 1; } - uresp.actual_sq_size = sq_size; - uresp.actual_rq_size = rq_size; + uresp.actual_sq_size = init_info.qp_uk_init_info.sq_size; + uresp.actual_rq_size = init_info.qp_uk_init_info.rq_size; uresp.qp_id = qp_num; uresp.qp_caps = qp->qp_uk.qp_caps; diff --git a/drivers/infiniband/hw/irdma/verbs.h b/drivers/infiniband/hw/irdma/verbs.h index 9f9e273bb..0bc0d0faa 100644 --- a/drivers/infiniband/hw/irdma/verbs.h +++ b/drivers/infiniband/hw/irdma/verbs.h @@ -18,7 +18,8 @@ struct irdma_ucontext { struct list_head qp_reg_mem_list; spinlock_t qp_reg_mem_list_lock; /* protect QP memory list */ int abi_ver; - bool legacy_mode; + u8 legacy_mode : 1; + u8 use_raw_attrs : 1; }; struct irdma_pd { |