/* * Copyright (c) 2016-2017 Hisilicon Limited. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU * General Public License (GPL) Version 2, available from the file * COPYING in the main directory of this source tree, or the * OpenIB.org BSD license below: * * Redistribution and use in source and binary forms, with or * without modification, are permitted provided that the following * conditions are met: * * - Redistributions of source code must retain the above * copyright notice, this list of conditions and the following * disclaimer. * * - Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and/or other materials * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include #include #include #include #include #include "hnae3.h" #include "hns_roce_common.h" #include "hns_roce_device.h" #include "hns_roce_cmd.h" #include "hns_roce_hem.h" #include "hns_roce_hw_v2.h" static void set_data_seg_v2(struct hns_roce_v2_wqe_data_seg *dseg, struct ib_sge *sg) { dseg->lkey = cpu_to_le32(sg->lkey); dseg->addr = cpu_to_le64(sg->addr); dseg->len = cpu_to_le32(sg->length); } static int hns_roce_v2_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, struct ib_send_wr **bad_wr) { struct hns_roce_dev *hr_dev = to_hr_dev(ibqp->device); struct hns_roce_v2_rc_send_wqe *rc_sq_wqe; struct hns_roce_qp *qp = to_hr_qp(ibqp); struct hns_roce_v2_wqe_data_seg *dseg; struct device *dev = hr_dev->dev; struct hns_roce_v2_db sq_db; unsigned int sge_ind = 0; unsigned int wqe_sz = 0; unsigned long flags; unsigned int ind; void *wqe = NULL; int ret = 0; int nreq; int i; if (unlikely(ibqp->qp_type != IB_QPT_RC)) { dev_err(dev, "Not supported QP(0x%x)type!\n", ibqp->qp_type); *bad_wr = NULL; return -EOPNOTSUPP; } if (unlikely(qp->state != IB_QPS_RTS && qp->state != IB_QPS_SQD)) { dev_err(dev, "Post WQE fail, QP state %d err!\n", qp->state); *bad_wr = wr; return -EINVAL; } spin_lock_irqsave(&qp->sq.lock, flags); ind = qp->sq_next_wqe; sge_ind = qp->next_sge; for (nreq = 0; wr; ++nreq, wr = wr->next) { if (hns_roce_wq_overflow(&qp->sq, nreq, qp->ibqp.send_cq)) { ret = -ENOMEM; *bad_wr = wr; goto out; } if (unlikely(wr->num_sge > qp->sq.max_gs)) { dev_err(dev, "num_sge=%d > qp->sq.max_gs=%d\n", wr->num_sge, qp->sq.max_gs); ret = -EINVAL; *bad_wr = wr; goto out; } wqe = get_send_wqe(qp, ind & (qp->sq.wqe_cnt - 1)); qp->sq.wrid[(qp->sq.head + nreq) & (qp->sq.wqe_cnt - 1)] = wr->wr_id; rc_sq_wqe = wqe; memset(rc_sq_wqe, 0, sizeof(*rc_sq_wqe)); for (i = 0; i < wr->num_sge; i++) rc_sq_wqe->msg_len += wr->sg_list[i].length; rc_sq_wqe->inv_key_immtdata = send_ieth(wr); switch (wr->opcode) { case IB_WR_RDMA_READ: roce_set_field(rc_sq_wqe->byte_4, V2_RC_SEND_WQE_BYTE_4_OPCODE_M, V2_RC_SEND_WQE_BYTE_4_OPCODE_S, HNS_ROCE_V2_WQE_OP_RDMA_READ); rc_sq_wqe->rkey = cpu_to_le32(rdma_wr(wr)->rkey); rc_sq_wqe->va = cpu_to_le64(rdma_wr(wr)->remote_addr); break; case IB_WR_RDMA_WRITE: roce_set_field(rc_sq_wqe->byte_4, V2_RC_SEND_WQE_BYTE_4_OPCODE_M, V2_RC_SEND_WQE_BYTE_4_OPCODE_S, HNS_ROCE_V2_WQE_OP_RDMA_WRITE); rc_sq_wqe->rkey = cpu_to_le32(rdma_wr(wr)->rkey); rc_sq_wqe->va = cpu_to_le64(rdma_wr(wr)->remote_addr); break; case IB_WR_RDMA_WRITE_WITH_IMM: roce_set_field(rc_sq_wqe->byte_4, V2_RC_SEND_WQE_BYTE_4_OPCODE_M, V2_RC_SEND_WQE_BYTE_4_OPCODE_S, HNS_ROCE_V2_WQE_OP_RDMA_WRITE_WITH_IMM); rc_sq_wqe->rkey = cpu_to_le32(rdma_wr(wr)->rkey); rc_sq_wqe->va = cpu_to_le64(rdma_wr(wr)->remote_addr); break; case IB_WR_SEND: roce_set_field(rc_sq_wqe->byte_4, V2_RC_SEND_WQE_BYTE_4_OPCODE_M, V2_RC_SEND_WQE_BYTE_4_OPCODE_S, HNS_ROCE_V2_WQE_OP_SEND); break; case IB_WR_SEND_WITH_INV: roce_set_field(rc_sq_wqe->byte_4, V2_RC_SEND_WQE_BYTE_4_OPCODE_M, V2_RC_SEND_WQE_BYTE_4_OPCODE_S, HNS_ROCE_V2_WQE_OP_SEND_WITH_INV); break; case IB_WR_SEND_WITH_IMM: roce_set_field(rc_sq_wqe->byte_4, V2_RC_SEND_WQE_BYTE_4_OPCODE_M, V2_RC_SEND_WQE_BYTE_4_OPCODE_S, HNS_ROCE_V2_WQE_OP_SEND_WITH_IMM); break; case IB_WR_LOCAL_INV: roce_set_field(rc_sq_wqe->byte_4, V2_RC_SEND_WQE_BYTE_4_OPCODE_M, V2_RC_SEND_WQE_BYTE_4_OPCODE_S, HNS_ROCE_V2_WQE_OP_LOCAL_INV); break; case IB_WR_ATOMIC_CMP_AND_SWP: roce_set_field(rc_sq_wqe->byte_4, V2_RC_SEND_WQE_BYTE_4_OPCODE_M, V2_RC_SEND_WQE_BYTE_4_OPCODE_S, HNS_ROCE_V2_WQE_OP_ATOM_CMP_AND_SWAP); break; case IB_WR_ATOMIC_FETCH_AND_ADD: roce_set_field(rc_sq_wqe->byte_4, V2_RC_SEND_WQE_BYTE_4_OPCODE_M, V2_RC_SEND_WQE_BYTE_4_OPCODE_S, HNS_ROCE_V2_WQE_OP_ATOM_FETCH_AND_ADD); break; case IB_WR_MASKED_ATOMIC_CMP_AND_SWP: roce_set_field(rc_sq_wqe->byte_4, V2_RC_SEND_WQE_BYTE_4_OPCODE_M, V2_RC_SEND_WQE_BYTE_4_OPCODE_S, HNS_ROCE_V2_WQE_OP_ATOM_MSK_CMP_AND_SWAP); break; case IB_WR_MASKED_ATOMIC_FETCH_AND_ADD: roce_set_field(rc_sq_wqe->byte_4, V2_RC_SEND_WQE_BYTE_4_OPCODE_M, V2_RC_SEND_WQE_BYTE_4_OPCODE_S, HNS_ROCE_V2_WQE_OP_ATOM_MSK_FETCH_AND_ADD); break; default: roce_set_field(rc_sq_wqe->byte_4, V2_RC_SEND_WQE_BYTE_4_OPCODE_M, V2_RC_SEND_WQE_BYTE_4_OPCODE_S, HNS_ROCE_V2_WQE_OP_MASK); break; } roce_set_bit(rc_sq_wqe->byte_4, V2_RC_SEND_WQE_BYTE_4_CQE_S, 1); wqe += sizeof(struct hns_roce_v2_rc_send_wqe); dseg = wqe; if (wr->send_flags & IB_SEND_INLINE && wr->num_sge) { if (rc_sq_wqe->msg_len > hr_dev->caps.max_sq_inline) { ret = -EINVAL; *bad_wr = wr; dev_err(dev, "inline len(1-%d)=%d, illegal", rc_sq_wqe->msg_len, hr_dev->caps.max_sq_inline); goto out; } for (i = 0; i < wr->num_sge; i++) { memcpy(wqe, ((void *)wr->sg_list[i].addr), wr->sg_list[i].length); wqe += wr->sg_list[i].length; wqe_sz += wr->sg_list[i].length; } roce_set_bit(rc_sq_wqe->byte_4, V2_RC_SEND_WQE_BYTE_4_INLINE_S, 1); } else { if (wr->num_sge <= 2) { for (i = 0; i < wr->num_sge; i++) set_data_seg_v2(dseg + i, wr->sg_list + i); } else { roce_set_field(rc_sq_wqe->byte_20, V2_RC_SEND_WQE_BYTE_20_MSG_START_SGE_IDX_M, V2_RC_SEND_WQE_BYTE_20_MSG_START_SGE_IDX_S, sge_ind & (qp->sge.sge_cnt - 1)); for (i = 0; i < 2; i++) set_data_seg_v2(dseg + i, wr->sg_list + i); dseg = get_send_extend_sge(qp, sge_ind & (qp->sge.sge_cnt - 1)); for (i = 0; i < wr->num_sge - 2; i++) { set_data_seg_v2(dseg + i, wr->sg_list + 2 + i); sge_ind++; } } roce_set_field(rc_sq_wqe->byte_16, V2_RC_SEND_WQE_BYTE_16_SGE_NUM_M, V2_RC_SEND_WQE_BYTE_16_SGE_NUM_S, wr->num_sge); wqe_sz += wr->num_sge * sizeof(struct hns_roce_v2_wqe_data_seg); } ind++; } out: if (likely(nreq)) { qp->sq.head += nreq; /* Memory barrier */ wmb(); sq_db.byte_4 = 0; sq_db.parameter = 0; roce_set_field(sq_db.byte_4, V2_DB_BYTE_4_TAG_M, V2_DB_BYTE_4_TAG_S, qp->doorbell_qpn); roce_set_field(sq_db.byte_4, V2_DB_BYTE_4_CMD_M, V2_DB_BYTE_4_CMD_S, HNS_ROCE_V2_SQ_DB); roce_set_field(sq_db.parameter, V2_DB_PARAMETER_CONS_IDX_M, V2_DB_PARAMETER_CONS_IDX_S, qp->sq.head & ((qp->sq.wqe_cnt << 1) - 1)); roce_set_field(sq_db.parameter, V2_DB_PARAMETER_SL_M, V2_DB_PARAMETER_SL_S, qp->sl); hns_roce_write64_k((__be32 *)&sq_db, qp->sq.db_reg_l); qp->sq_next_wqe = ind; qp->next_sge = sge_ind; } spin_unlock_irqrestore(&qp->sq.lock, flags); return ret; } static int hns_roce_v2_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr, struct ib_recv_wr **bad_wr) { struct hns_roce_dev *hr_dev = to_hr_dev(ibqp->device); struct hns_roce_qp *hr_qp = to_hr_qp(ibqp); struct hns_roce_v2_wqe_data_seg *dseg; struct device *dev = hr_dev->dev; struct hns_roce_v2_db rq_db; unsigned long flags; void *wqe = NULL; int ret = 0; int nreq; int ind; int i; spin_lock_irqsave(&hr_qp->rq.lock, flags); ind = hr_qp->rq.head & (hr_qp->rq.wqe_cnt - 1); if (hr_qp->state == IB_QPS_RESET || hr_qp->state == IB_QPS_ERR) { spin_unlock_irqrestore(&hr_qp->rq.lock, flags); *bad_wr = wr; return -EINVAL; } for (nreq = 0; wr; ++nreq, wr = wr->next) { if (hns_roce_wq_overflow(&hr_qp->rq, nreq, hr_qp->ibqp.recv_cq)) { ret = -ENOMEM; *bad_wr = wr; goto out; } if (unlikely(wr->num_sge > hr_qp->rq.max_gs)) { dev_err(dev, "rq:num_sge=%d > qp->sq.max_gs=%d\n", wr->num_sge, hr_qp->rq.max_gs); ret = -EINVAL; *bad_wr = wr; goto out; } wqe = get_recv_wqe(hr_qp, ind); dseg = (struct hns_roce_v2_wqe_data_seg *)wqe; for (i = 0; i < wr->num_sge; i++) { if (!wr->sg_list[i].length) continue; set_data_seg_v2(dseg, wr->sg_list + i); dseg++; } if (i < hr_qp->rq.max_gs) { dseg[i].lkey = cpu_to_be32(HNS_ROCE_INVALID_LKEY); dseg[i].addr = 0; } hr_qp->rq.wrid[ind] = wr->wr_id; ind = (ind + 1) & (hr_qp->rq.wqe_cnt - 1); } out: if (likely(nreq)) { hr_qp->rq.head += nreq; /* Memory barrier */ wmb(); rq_db.byte_4 = 0; rq_db.parameter = 0; roce_set_field(rq_db.byte_4, V2_DB_BYTE_4_TAG_M, V2_DB_BYTE_4_TAG_S, hr_qp->qpn); roce_set_field(rq_db.byte_4, V2_DB_BYTE_4_CMD_M, V2_DB_BYTE_4_CMD_S, HNS_ROCE_V2_RQ_DB); roce_set_field(rq_db.parameter, V2_DB_PARAMETER_CONS_IDX_M, V2_DB_PARAMETER_CONS_IDX_S, hr_qp->rq.head); hns_roce_write64_k((__be32 *)&rq_db, hr_qp->rq.db_reg_l); } spin_unlock_irqrestore(&hr_qp->rq.lock, flags); return ret; } static int hns_roce_cmq_space(struct hns_roce_v2_cmq_ring *ring) { int ntu = ring->next_to_use; int ntc = ring->next_to_clean; int used = (ntu - ntc + ring->desc_num) % ring->desc_num; return ring->desc_num - used - 1; } static int hns_roce_alloc_cmq_desc(struct hns_roce_dev *hr_dev, struct hns_roce_v2_cmq_ring *ring) { int size = ring->desc_num * sizeof(struct hns_roce_cmq_desc); ring->desc = kzalloc(size, GFP_KERNEL); if (!ring->desc) return -ENOMEM; ring->desc_dma_addr = dma_map_single(hr_dev->dev, ring->desc, size, DMA_BIDIRECTIONAL); if (dma_mapping_error(hr_dev->dev, ring->desc_dma_addr)) { ring->desc_dma_addr = 0; kfree(ring->desc); ring->desc = NULL; return -ENOMEM; } return 0; } static void hns_roce_free_cmq_desc(struct hns_roce_dev *hr_dev, struct hns_roce_v2_cmq_ring *ring) { dma_unmap_single(hr_dev->dev, ring->desc_dma_addr, ring->desc_num * sizeof(struct hns_roce_cmq_desc), DMA_BIDIRECTIONAL); kfree(ring->desc); } static int hns_roce_init_cmq_ring(struct hns_roce_dev *hr_dev, bool ring_type) { struct hns_roce_v2_priv *priv = (struct hns_roce_v2_priv *)hr_dev->priv; struct hns_roce_v2_cmq_ring *ring = (ring_type == TYPE_CSQ) ? &priv->cmq.csq : &priv->cmq.crq; ring->flag = ring_type; ring->next_to_clean = 0; ring->next_to_use = 0; return hns_roce_alloc_cmq_desc(hr_dev, ring); } static void hns_roce_cmq_init_regs(struct hns_roce_dev *hr_dev, bool ring_type) { struct hns_roce_v2_priv *priv = (struct hns_roce_v2_priv *)hr_dev->priv; struct hns_roce_v2_cmq_ring *ring = (ring_type == TYPE_CSQ) ? &priv->cmq.csq : &priv->cmq.crq; dma_addr_t dma = ring->desc_dma_addr; if (ring_type == TYPE_CSQ) { roce_write(hr_dev, ROCEE_TX_CMQ_BASEADDR_L_REG, (u32)dma); roce_write(hr_dev, ROCEE_TX_CMQ_BASEADDR_H_REG, upper_32_bits(dma)); roce_write(hr_dev, ROCEE_TX_CMQ_DEPTH_REG, (ring->desc_num >> HNS_ROCE_CMQ_DESC_NUM_S) | HNS_ROCE_CMQ_ENABLE); roce_write(hr_dev, ROCEE_TX_CMQ_HEAD_REG, 0); roce_write(hr_dev, ROCEE_TX_CMQ_TAIL_REG, 0); } else { roce_write(hr_dev, ROCEE_RX_CMQ_BASEADDR_L_REG, (u32)dma); roce_write(hr_dev, ROCEE_RX_CMQ_BASEADDR_H_REG, upper_32_bits(dma)); roce_write(hr_dev, ROCEE_RX_CMQ_DEPTH_REG, (ring->desc_num >> HNS_ROCE_CMQ_DESC_NUM_S) | HNS_ROCE_CMQ_ENABLE); roce_write(hr_dev, ROCEE_RX_CMQ_HEAD_REG, 0); roce_write(hr_dev, ROCEE_RX_CMQ_TAIL_REG, 0); } } static int hns_roce_v2_cmq_init(struct hns_roce_dev *hr_dev) { struct hns_roce_v2_priv *priv = (struct hns_roce_v2_priv *)hr_dev->priv; int ret; /* Setup the queue entries for command queue */ priv->cmq.csq.desc_num = 1024; priv->cmq.crq.desc_num = 1024; /* Setup the lock for command queue */ spin_lock_init(&priv->cmq.csq.lock); spin_lock_init(&priv->cmq.crq.lock); /* Setup Tx write back timeout */ priv->cmq.tx_timeout = HNS_ROCE_CMQ_TX_TIMEOUT; /* Init CSQ */ ret = hns_roce_init_cmq_ring(hr_dev, TYPE_CSQ); if (ret) { dev_err(hr_dev->dev, "Init CSQ error, ret = %d.\n", ret); return ret; } /* Init CRQ */ ret = hns_roce_init_cmq_ring(hr_dev, TYPE_CRQ); if (ret) { dev_err(hr_dev->dev, "Init CRQ error, ret = %d.\n", ret); goto err_crq; } /* Init CSQ REG */ hns_roce_cmq_init_regs(hr_dev, TYPE_CSQ); /* Init CRQ REG */ hns_roce_cmq_init_regs(hr_dev, TYPE_CRQ); return 0; err_crq: hns_roce_free_cmq_desc(hr_dev, &priv->cmq.csq); return ret; } static void hns_roce_v2_cmq_exit(struct hns_roce_dev *hr_dev) { struct hns_roce_v2_priv *priv = (struct hns_roce_v2_priv *)hr_dev->priv; hns_roce_free_cmq_desc(hr_dev, &priv->cmq.csq); hns_roce_free_cmq_desc(hr_dev, &priv->cmq.crq); } void hns_roce_cmq_setup_basic_desc(struct hns_roce_cmq_desc *desc, enum hns_roce_opcode_type opcode, bool is_read) { memset((void *)desc, 0, sizeof(struct hns_roce_cmq_desc)); desc->opcode = cpu_to_le16(opcode); desc->flag = cpu_to_le16(HNS_ROCE_CMD_FLAG_NO_INTR | HNS_ROCE_CMD_FLAG_IN); if (is_read) desc->flag |= cpu_to_le16(HNS_ROCE_CMD_FLAG_WR); else desc->flag &= cpu_to_le16(~HNS_ROCE_CMD_FLAG_WR); } static int hns_roce_cmq_csq_done(struct hns_roce_dev *hr_dev) { struct hns_roce_v2_priv *priv = (struct hns_roce_v2_priv *)hr_dev->priv; u32 head = roce_read(hr_dev, ROCEE_TX_CMQ_HEAD_REG); return head == priv->cmq.csq.next_to_use; } static int hns_roce_cmq_csq_clean(struct hns_roce_dev *hr_dev) { struct hns_roce_v2_priv *priv = (struct hns_roce_v2_priv *)hr_dev->priv; struct hns_roce_v2_cmq_ring *csq = &priv->cmq.csq; struct hns_roce_cmq_desc *desc; u16 ntc = csq->next_to_clean; u32 head; int clean = 0; desc = &csq->desc[ntc]; head = roce_read(hr_dev, ROCEE_TX_CMQ_HEAD_REG); while (head != ntc) { memset(desc, 0, sizeof(*desc)); ntc++; if (ntc == csq->desc_num) ntc = 0; desc = &csq->desc[ntc]; clean++; } csq->next_to_clean = ntc; return clean; } int hns_roce_cmq_send(struct hns_roce_dev *hr_dev, struct hns_roce_cmq_desc *desc, int num) { struct hns_roce_v2_priv *priv = (struct hns_roce_v2_priv *)hr_dev->priv; struct hns_roce_v2_cmq_ring *csq = &priv->cmq.csq; struct hns_roce_cmq_desc *desc_to_use; bool complete = false; u32 timeout = 0; int handle = 0; u16 desc_ret; int ret = 0; int ntc; spin_lock_bh(&csq->lock); if (num > hns_roce_cmq_space(csq)) { spin_unlock_bh(&csq->lock); return -EBUSY; } /* * Record the location of desc in the cmq for this time * which will be use for hardware to write back */ ntc = csq->next_to_use; while (handle < num) { desc_to_use = &csq->desc[csq->next_to_use]; *desc_to_use = desc[handle]; dev_dbg(hr_dev->dev, "set cmq desc:\n"); csq->next_to_use++; if (csq->next_to_use == csq->desc_num) csq->next_to_use = 0; handle++; } /* Write to hardware */ roce_write(hr_dev, ROCEE_TX_CMQ_TAIL_REG, csq->next_to_use); /* * If the command is sync, wait for the firmware to write back, * if multi descriptors to be sent, use the first one to check */ if ((desc->flag) & HNS_ROCE_CMD_FLAG_NO_INTR) { do { if (hns_roce_cmq_csq_done(hr_dev)) break; usleep_range(1000, 2000); timeout++; } while (timeout < priv->cmq.tx_timeout); } if (hns_roce_cmq_csq_done(hr_dev)) { complete = true; handle = 0; while (handle < num) { /* get the result of hardware write back */ desc_to_use = &csq->desc[ntc]; desc[handle] = *desc_to_use; dev_dbg(hr_dev->dev, "Get cmq desc:\n"); desc_ret = desc[handle].retval; if (desc_ret == CMD_EXEC_SUCCESS) ret = 0; else ret = -EIO; priv->cmq.last_status = desc_ret; ntc++; handle++; if (ntc == csq->desc_num) ntc = 0; } } if (!complete) ret = -EAGAIN; /* clean the command send queue */ handle = hns_roce_cmq_csq_clean(hr_dev); if (handle != num) dev_warn(hr_dev->dev, "Cleaned %d, need to clean %d\n", handle, num); spin_unlock_bh(&csq->lock); return ret; } int hns_roce_cmq_query_hw_info(struct hns_roce_dev *hr_dev) { struct hns_roce_query_version *resp; struct hns_roce_cmq_desc desc; int ret; hns_roce_cmq_setup_basic_desc(&desc, HNS_ROCE_OPC_QUERY_HW_VER, true); ret = hns_roce_cmq_send(hr_dev, &desc, 1); if (ret) return ret; resp = (struct hns_roce_query_version *)desc.data; hr_dev->hw_rev = le32_to_cpu(resp->rocee_hw_version); hr_dev->vendor_id = le32_to_cpu(resp->rocee_vendor_id); return 0; } static int hns_roce_config_global_param(struct hns_roce_dev *hr_dev) { struct hns_roce_cfg_global_param *req; struct hns_roce_cmq_desc desc; hns_roce_cmq_setup_basic_desc(&desc, HNS_ROCE_OPC_CFG_GLOBAL_PARAM, false); req = (struct hns_roce_cfg_global_param *)desc.data; memset(req, 0, sizeof(*req)); roce_set_field(req->time_cfg_udp_port, CFG_GLOBAL_PARAM_DATA_0_ROCEE_TIME_1US_CFG_M, CFG_GLOBAL_PARAM_DATA_0_ROCEE_TIME_1US_CFG_S, 0x3e8); roce_set_field(req->time_cfg_udp_port, CFG_GLOBAL_PARAM_DATA_0_ROCEE_UDP_PORT_M, CFG_GLOBAL_PARAM_DATA_0_ROCEE_UDP_PORT_S, 0x12b7); return hns_roce_cmq_send(hr_dev, &desc, 1); } static int hns_roce_query_pf_resource(struct hns_roce_dev *hr_dev) { struct hns_roce_cmq_desc desc[2]; struct hns_roce_pf_res *res; int ret; int i; for (i = 0; i < 2; i++) { hns_roce_cmq_setup_basic_desc(&desc[i], HNS_ROCE_OPC_QUERY_PF_RES, true); if (i == 0) desc[i].flag |= cpu_to_le16(HNS_ROCE_CMD_FLAG_NEXT); else desc[i].flag &= ~cpu_to_le16(HNS_ROCE_CMD_FLAG_NEXT); } ret = hns_roce_cmq_send(hr_dev, desc, 2); if (ret) return ret; res = (struct hns_roce_pf_res *)desc[0].data; hr_dev->caps.qpc_bt_num = roce_get_field(res->qpc_bt_idx_num, PF_RES_DATA_1_PF_QPC_BT_NUM_M, PF_RES_DATA_1_PF_QPC_BT_NUM_S); hr_dev->caps.srqc_bt_num = roce_get_field(res->srqc_bt_idx_num, PF_RES_DATA_2_PF_SRQC_BT_NUM_M, PF_RES_DATA_2_PF_SRQC_BT_NUM_S); hr_dev->caps.cqc_bt_num = roce_get_field(res->cqc_bt_idx_num, PF_RES_DATA_3_PF_CQC_BT_NUM_M, PF_RES_DATA_3_PF_CQC_BT_NUM_S); hr_dev->caps.mpt_bt_num = roce_get_field(res->mpt_bt_idx_num, PF_RES_DATA_4_PF_MPT_BT_NUM_M, PF_RES_DATA_4_PF_MPT_BT_NUM_S); return 0; } static int hns_roce_alloc_vf_resource(struct hns_roce_dev *hr_dev) { struct hns_roce_cmq_desc desc[2]; struct hns_roce_vf_res_a *req_a; struct hns_roce_vf_res_b *req_b; int i; req_a = (struct hns_roce_vf_res_a *)desc[0].data; req_b = (struct hns_roce_vf_res_b *)desc[1].data; memset(req_a, 0, sizeof(*req_a)); memset(req_b, 0, sizeof(*req_b)); for (i = 0; i < 2; i++) { hns_roce_cmq_setup_basic_desc(&desc[i], HNS_ROCE_OPC_ALLOC_VF_RES, false); if (i == 0) desc[i].flag |= cpu_to_le16(HNS_ROCE_CMD_FLAG_NEXT); else desc[i].flag &= ~cpu_to_le16(HNS_ROCE_CMD_FLAG_NEXT); if (i == 0) { roce_set_field(req_a->vf_qpc_bt_idx_num, VF_RES_A_DATA_1_VF_QPC_BT_IDX_M, VF_RES_A_DATA_1_VF_QPC_BT_IDX_S, 0); roce_set_field(req_a->vf_qpc_bt_idx_num, VF_RES_A_DATA_1_VF_QPC_BT_NUM_M, VF_RES_A_DATA_1_VF_QPC_BT_NUM_S, HNS_ROCE_VF_QPC_BT_NUM); roce_set_field(req_a->vf_srqc_bt_idx_num, VF_RES_A_DATA_2_VF_SRQC_BT_IDX_M, VF_RES_A_DATA_2_VF_SRQC_BT_IDX_S, 0); roce_set_field(req_a->vf_srqc_bt_idx_num, VF_RES_A_DATA_2_VF_SRQC_BT_NUM_M, VF_RES_A_DATA_2_VF_SRQC_BT_NUM_S, HNS_ROCE_VF_SRQC_BT_NUM); roce_set_field(req_a->vf_cqc_bt_idx_num, VF_RES_A_DATA_3_VF_CQC_BT_IDX_M, VF_RES_A_DATA_3_VF_CQC_BT_IDX_S, 0); roce_set_field(req_a->vf_cqc_bt_idx_num, VF_RES_A_DATA_3_VF_CQC_BT_NUM_M, VF_RES_A_DATA_3_VF_CQC_BT_NUM_S, HNS_ROCE_VF_CQC_BT_NUM); roce_set_field(req_a->vf_mpt_bt_idx_num, VF_RES_A_DATA_4_VF_MPT_BT_IDX_M, VF_RES_A_DATA_4_VF_MPT_BT_IDX_S, 0); roce_set_field(req_a->vf_mpt_bt_idx_num, VF_RES_A_DATA_4_VF_MPT_BT_NUM_M, VF_RES_A_DATA_4_VF_MPT_BT_NUM_S, HNS_ROCE_VF_MPT_BT_NUM); roce_set_field(req_a->vf_eqc_bt_idx_num, VF_RES_A_DATA_5_VF_EQC_IDX_M, VF_RES_A_DATA_5_VF_EQC_IDX_S, 0); roce_set_field(req_a->vf_eqc_bt_idx_num, VF_RES_A_DATA_5_VF_EQC_NUM_M, VF_RES_A_DATA_5_VF_EQC_NUM_S, HNS_ROCE_VF_EQC_NUM); } else { roce_set_field(req_b->vf_smac_idx_num, VF_RES_B_DATA_1_VF_SMAC_IDX_M, VF_RES_B_DATA_1_VF_SMAC_IDX_S, 0); roce_set_field(req_b->vf_smac_idx_num, VF_RES_B_DATA_1_VF_SMAC_NUM_M, VF_RES_B_DATA_1_VF_SMAC_NUM_S, HNS_ROCE_VF_SMAC_NUM); roce_set_field(req_b->vf_sgid_idx_num, VF_RES_B_DATA_2_VF_SGID_IDX_M, VF_RES_B_DATA_2_VF_SGID_IDX_S, 0); roce_set_field(req_b->vf_sgid_idx_num, VF_RES_B_DATA_2_VF_SGID_NUM_M, VF_RES_B_DATA_2_VF_SGID_NUM_S, HNS_ROCE_VF_SGID_NUM); roce_set_field(req_b->vf_qid_idx_sl_num, VF_RES_B_DATA_3_VF_QID_IDX_M, VF_RES_B_DATA_3_VF_QID_IDX_S, 0); roce_set_field(req_b->vf_qid_idx_sl_num, VF_RES_B_DATA_3_VF_SL_NUM_M, VF_RES_B_DATA_3_VF_SL_NUM_S, HNS_ROCE_VF_SL_NUM); } } return hns_roce_cmq_send(hr_dev, desc, 2); } static int hns_roce_v2_set_bt(struct hns_roce_dev *hr_dev) { u8 srqc_hop_num = hr_dev->caps.srqc_hop_num; u8 qpc_hop_num = hr_dev->caps.qpc_hop_num; u8 cqc_hop_num = hr_dev->caps.cqc_hop_num; u8 mpt_hop_num = hr_dev->caps.mpt_hop_num; struct hns_roce_cfg_bt_attr *req; struct hns_roce_cmq_desc desc; hns_roce_cmq_setup_basic_desc(&desc, HNS_ROCE_OPC_CFG_BT_ATTR, false); req = (struct hns_roce_cfg_bt_attr *)desc.data; memset(req, 0, sizeof(*req)); roce_set_field(req->vf_qpc_cfg, CFG_BT_ATTR_DATA_0_VF_QPC_BA_PGSZ_M, CFG_BT_ATTR_DATA_0_VF_QPC_BA_PGSZ_S, hr_dev->caps.qpc_ba_pg_sz); roce_set_field(req->vf_qpc_cfg, CFG_BT_ATTR_DATA_0_VF_QPC_BUF_PGSZ_M, CFG_BT_ATTR_DATA_0_VF_QPC_BUF_PGSZ_S, hr_dev->caps.qpc_buf_pg_sz); roce_set_field(req->vf_qpc_cfg, CFG_BT_ATTR_DATA_0_VF_QPC_HOPNUM_M, CFG_BT_ATTR_DATA_0_VF_QPC_HOPNUM_S, qpc_hop_num == HNS_ROCE_HOP_NUM_0 ? 0 : qpc_hop_num); roce_set_field(req->vf_srqc_cfg, CFG_BT_ATTR_DATA_1_VF_SRQC_BA_PGSZ_M, CFG_BT_ATTR_DATA_1_VF_SRQC_BA_PGSZ_S, hr_dev->caps.srqc_ba_pg_sz); roce_set_field(req->vf_srqc_cfg, CFG_BT_ATTR_DATA_1_VF_SRQC_BUF_PGSZ_M, CFG_BT_ATTR_DATA_1_VF_SRQC_BUF_PGSZ_S, hr_dev->caps.srqc_buf_pg_sz); roce_set_field(req->vf_srqc_cfg, CFG_BT_ATTR_DATA_1_VF_SRQC_HOPNUM_M, CFG_BT_ATTR_DATA_1_VF_SRQC_HOPNUM_S, srqc_hop_num == HNS_ROCE_HOP_NUM_0 ? 0 : srqc_hop_num); roce_set_field(req->vf_cqc_cfg, CFG_BT_ATTR_DATA_2_VF_CQC_BA_PGSZ_M, CFG_BT_ATTR_DATA_2_VF_CQC_BA_PGSZ_S, hr_dev->caps.cqc_ba_pg_sz); roce_set_field(req->vf_cqc_cfg, CFG_BT_ATTR_DATA_2_VF_CQC_BUF_PGSZ_M, CFG_BT_ATTR_DATA_2_VF_CQC_BUF_PGSZ_S, hr_dev->caps.cqc_buf_pg_sz); roce_set_field(req->vf_cqc_cfg, CFG_BT_ATTR_DATA_2_VF_CQC_HOPNUM_M, CFG_BT_ATTR_DATA_2_VF_CQC_HOPNUM_S, cqc_hop_num == HNS_ROCE_HOP_NUM_0 ? 0 : cqc_hop_num); roce_set_field(req->vf_mpt_cfg, CFG_BT_ATTR_DATA_3_VF_MPT_BA_PGSZ_M, CFG_BT_ATTR_DATA_3_VF_MPT_BA_PGSZ_S, hr_dev->caps.mpt_ba_pg_sz); roce_set_field(req->vf_mpt_cfg, CFG_BT_ATTR_DATA_3_VF_MPT_BUF_PGSZ_M, CFG_BT_ATTR_DATA_3_VF_MPT_BUF_PGSZ_S, hr_dev->caps.mpt_buf_pg_sz); roce_set_field(req->vf_mpt_cfg, CFG_BT_ATTR_DATA_3_VF_MPT_HOPNUM_M, CFG_BT_ATTR_DATA_3_VF_MPT_HOPNUM_S, mpt_hop_num == HNS_ROCE_HOP_NUM_0 ? 0 : mpt_hop_num); return hns_roce_cmq_send(hr_dev, &desc, 1); } static int hns_roce_v2_profile(struct hns_roce_dev *hr_dev) { struct hns_roce_caps *caps = &hr_dev->caps; int ret; ret = hns_roce_cmq_query_hw_info(hr_dev); if (ret) { dev_err(hr_dev->dev, "Query firmware version fail, ret = %d.\n", ret); return ret; } ret = hns_roce_config_global_param(hr_dev); if (ret) { dev_err(hr_dev->dev, "Configure global param fail, ret = %d.\n", ret); } /* Get pf resource owned by every pf */ ret = hns_roce_query_pf_resource(hr_dev); if (ret) { dev_err(hr_dev->dev, "Query pf resource fail, ret = %d.\n", ret); return ret; } ret = hns_roce_alloc_vf_resource(hr_dev); if (ret) { dev_err(hr_dev->dev, "Allocate vf resource fail, ret = %d.\n", ret); return ret; } hr_dev->vendor_part_id = 0; hr_dev->sys_image_guid = 0; caps->num_qps = HNS_ROCE_V2_MAX_QP_NUM; caps->max_wqes = HNS_ROCE_V2_MAX_WQE_NUM; caps->num_cqs = HNS_ROCE_V2_MAX_CQ_NUM; caps->max_cqes = HNS_ROCE_V2_MAX_CQE_NUM; caps->max_sq_sg = HNS_ROCE_V2_MAX_SQ_SGE_NUM; caps->max_rq_sg = HNS_ROCE_V2_MAX_RQ_SGE_NUM; caps->max_sq_inline = HNS_ROCE_V2_MAX_SQ_INLINE; caps->num_uars = HNS_ROCE_V2_UAR_NUM; caps->phy_num_uars = HNS_ROCE_V2_PHY_UAR_NUM; caps->num_aeq_vectors = 1; caps->num_comp_vectors = 63; caps->num_other_vectors = 0; caps->num_mtpts = HNS_ROCE_V2_MAX_MTPT_NUM; caps->num_mtt_segs = HNS_ROCE_V2_MAX_MTT_SEGS; caps->num_cqe_segs = HNS_ROCE_V2_MAX_CQE_SEGS; caps->num_pds = HNS_ROCE_V2_MAX_PD_NUM; caps->max_qp_init_rdma = HNS_ROCE_V2_MAX_QP_INIT_RDMA; caps->max_qp_dest_rdma = HNS_ROCE_V2_MAX_QP_DEST_RDMA; caps->max_sq_desc_sz = HNS_ROCE_V2_MAX_SQ_DESC_SZ; caps->max_rq_desc_sz = HNS_ROCE_V2_MAX_RQ_DESC_SZ; caps->max_srq_desc_sz = HNS_ROCE_V2_MAX_SRQ_DESC_SZ; caps->qpc_entry_sz = HNS_ROCE_V2_QPC_ENTRY_SZ; caps->irrl_entry_sz = HNS_ROCE_V2_IRRL_ENTRY_SZ; caps->cqc_entry_sz = HNS_ROCE_V2_CQC_ENTRY_SZ; caps->mtpt_entry_sz = HNS_ROCE_V2_MTPT_ENTRY_SZ; caps->mtt_entry_sz = HNS_ROCE_V2_MTT_ENTRY_SZ; caps->cq_entry_sz = HNS_ROCE_V2_CQE_ENTRY_SIZE; caps->page_size_cap = HNS_ROCE_V2_PAGE_SIZE_SUPPORTED; caps->reserved_lkey = 0; caps->reserved_pds = 0; caps->reserved_mrws = 1; caps->reserved_uars = 0; caps->reserved_cqs = 0; caps->qpc_ba_pg_sz = 0; caps->qpc_buf_pg_sz = 0; caps->qpc_hop_num = HNS_ROCE_CONTEXT_HOP_NUM; caps->srqc_ba_pg_sz = 0; caps->srqc_buf_pg_sz = 0; caps->srqc_hop_num = HNS_ROCE_HOP_NUM_0; caps->cqc_ba_pg_sz = 0; caps->cqc_buf_pg_sz = 0; caps->cqc_hop_num = HNS_ROCE_CONTEXT_HOP_NUM; caps->mpt_ba_pg_sz = 0; caps->mpt_buf_pg_sz = 0; caps->mpt_hop_num = HNS_ROCE_CONTEXT_HOP_NUM; caps->pbl_ba_pg_sz = 0; caps->pbl_buf_pg_sz = 0; caps->pbl_hop_num = HNS_ROCE_PBL_HOP_NUM; caps->mtt_ba_pg_sz = 0; caps->mtt_buf_pg_sz = 0; caps->mtt_hop_num = HNS_ROCE_MTT_HOP_NUM; caps->cqe_ba_pg_sz = 0; caps->cqe_buf_pg_sz = 0; caps->cqe_hop_num = HNS_ROCE_CQE_HOP_NUM; caps->pkey_table_len[0] = 1; caps->gid_table_len[0] = 2; caps->local_ca_ack_delay = 0; caps->max_mtu = IB_MTU_4096; ret = hns_roce_v2_set_bt(hr_dev); if (ret) dev_err(hr_dev->dev, "Configure bt attribute fail, ret = %d.\n", ret); return ret; } static int hns_roce_v2_cmd_pending(struct hns_roce_dev *hr_dev) { u32 status = readl(hr_dev->reg_base + ROCEE_VF_MB_STATUS_REG); return status >> HNS_ROCE_HW_RUN_BIT_SHIFT; } static int hns_roce_v2_cmd_complete(struct hns_roce_dev *hr_dev) { u32 status = readl(hr_dev->reg_base + ROCEE_VF_MB_STATUS_REG); return status & HNS_ROCE_HW_MB_STATUS_MASK; } static int hns_roce_v2_post_mbox(struct hns_roce_dev *hr_dev, u64 in_param, u64 out_param, u32 in_modifier, u8 op_modifier, u16 op, u16 token, int event) { struct device *dev = hr_dev->dev; u32 *hcr = (u32 *)(hr_dev->reg_base + ROCEE_VF_MB_CFG0_REG); unsigned long end; u32 val0 = 0; u32 val1 = 0; end = msecs_to_jiffies(HNS_ROCE_V2_GO_BIT_TIMEOUT_MSECS) + jiffies; while (hns_roce_v2_cmd_pending(hr_dev)) { if (time_after(jiffies, end)) { dev_dbg(dev, "jiffies=%d end=%d\n", (int)jiffies, (int)end); return -EAGAIN; } cond_resched(); } roce_set_field(val0, HNS_ROCE_VF_MB4_TAG_MASK, HNS_ROCE_VF_MB4_TAG_SHIFT, in_modifier); roce_set_field(val0, HNS_ROCE_VF_MB4_CMD_MASK, HNS_ROCE_VF_MB4_CMD_SHIFT, op); roce_set_field(val1, HNS_ROCE_VF_MB5_EVENT_MASK, HNS_ROCE_VF_MB5_EVENT_SHIFT, event); roce_set_field(val1, HNS_ROCE_VF_MB5_TOKEN_MASK, HNS_ROCE_VF_MB5_TOKEN_SHIFT, token); __raw_writeq(cpu_to_le64(in_param), hcr + 0); __raw_writeq(cpu_to_le64(out_param), hcr + 2); /* Memory barrier */ wmb(); __raw_writel(cpu_to_le32(val0), hcr + 4); __raw_writel(cpu_to_le32(val1), hcr + 5); mmiowb(); return 0; } static int hns_roce_v2_chk_mbox(struct hns_roce_dev *hr_dev, unsigned long timeout) { struct device *dev = hr_dev->dev; unsigned long end = 0; u32 status; end = msecs_to_jiffies(timeout) + jiffies; while (hns_roce_v2_cmd_pending(hr_dev) && time_before(jiffies, end)) cond_resched(); if (hns_roce_v2_cmd_pending(hr_dev)) { dev_err(dev, "[cmd_poll]hw run cmd TIMEDOUT!\n"); return -ETIMEDOUT; } status = hns_roce_v2_cmd_complete(hr_dev); if (status != 0x1) { dev_err(dev, "mailbox status 0x%x!\n", status); return -EBUSY; } return 0; } static void hns_roce_v2_set_gid(struct hns_roce_dev *hr_dev, u8 port, int gid_index, union ib_gid *gid) { u32 *p; u32 val; p = (u32 *)&gid->raw[0]; roce_raw_write(*p, hr_dev->reg_base + ROCEE_VF_SGID_CFG0_REG + 0x20 * gid_index); p = (u32 *)&gid->raw[4]; roce_raw_write(*p, hr_dev->reg_base + ROCEE_VF_SGID_CFG1_REG + 0x20 * gid_index); p = (u32 *)&gid->raw[8]; roce_raw_write(*p, hr_dev->reg_base + ROCEE_VF_SGID_CFG2_REG + 0x20 * gid_index); p = (u32 *)&gid->raw[0xc]; roce_raw_write(*p, hr_dev->reg_base + ROCEE_VF_SGID_CFG3_REG + 0x20 * gid_index); val = roce_read(hr_dev, ROCEE_VF_SGID_CFG4_REG + 0x20 * gid_index); roce_set_field(val, ROCEE_VF_SGID_CFG4_SGID_TYPE_M, ROCEE_VF_SGID_CFG4_SGID_TYPE_S, 0); roce_write(hr_dev, ROCEE_VF_SGID_CFG4_REG + 0x20 * gid_index, val); } static void hns_roce_v2_set_mac(struct hns_roce_dev *hr_dev, u8 phy_port, u8 *addr) { u16 reg_smac_h; u32 reg_smac_l; u32 val; reg_smac_l = *(u32 *)(&addr[0]); roce_raw_write(reg_smac_l, hr_dev->reg_base + ROCEE_VF_SMAC_CFG0_REG + 0x08 * phy_port); val = roce_read(hr_dev, ROCEE_VF_SMAC_CFG1_REG + 0x08 * phy_port); reg_smac_h = *(u16 *)(&addr[4]); roce_set_field(val, ROCEE_VF_SMAC_CFG1_VF_SMAC_H_M, ROCEE_VF_SMAC_CFG1_VF_SMAC_H_S, reg_smac_h); roce_write(hr_dev, ROCEE_VF_SMAC_CFG1_REG + 0x08 * phy_port, val); } static int hns_roce_v2_write_mtpt(void *mb_buf, struct hns_roce_mr *mr, unsigned long mtpt_idx) { struct hns_roce_v2_mpt_entry *mpt_entry; struct scatterlist *sg; u64 *pages; int entry; int i; mpt_entry = mb_buf; memset(mpt_entry, 0, sizeof(*mpt_entry)); roce_set_field(mpt_entry->byte_4_pd_hop_st, V2_MPT_BYTE_4_MPT_ST_M, V2_MPT_BYTE_4_MPT_ST_S, V2_MPT_ST_VALID); roce_set_field(mpt_entry->byte_4_pd_hop_st, V2_MPT_BYTE_4_PBL_HOP_NUM_M, V2_MPT_BYTE_4_PBL_HOP_NUM_S, mr->pbl_hop_num == HNS_ROCE_HOP_NUM_0 ? 0 : mr->pbl_hop_num); roce_set_field(mpt_entry->byte_4_pd_hop_st, V2_MPT_BYTE_4_PBL_BA_PG_SZ_M, V2_MPT_BYTE_4_PBL_BA_PG_SZ_S, mr->pbl_ba_pg_sz); roce_set_field(mpt_entry->byte_4_pd_hop_st, V2_MPT_BYTE_4_PD_M, V2_MPT_BYTE_4_PD_S, mr->pd); mpt_entry->byte_4_pd_hop_st = cpu_to_le32(mpt_entry->byte_4_pd_hop_st); roce_set_bit(mpt_entry->byte_8_mw_cnt_en, V2_MPT_BYTE_8_RA_EN_S, 0); roce_set_bit(mpt_entry->byte_8_mw_cnt_en, V2_MPT_BYTE_8_R_INV_EN_S, 1); roce_set_bit(mpt_entry->byte_8_mw_cnt_en, V2_MPT_BYTE_8_L_INV_EN_S, 0); roce_set_bit(mpt_entry->byte_8_mw_cnt_en, V2_MPT_BYTE_8_BIND_EN_S, (mr->access & IB_ACCESS_MW_BIND ? 1 : 0)); roce_set_bit(mpt_entry->byte_8_mw_cnt_en, V2_MPT_BYTE_8_ATOMIC_EN_S, 0); roce_set_bit(mpt_entry->byte_8_mw_cnt_en, V2_MPT_BYTE_8_RR_EN_S, (mr->access & IB_ACCESS_REMOTE_READ ? 1 : 0)); roce_set_bit(mpt_entry->byte_8_mw_cnt_en, V2_MPT_BYTE_8_RW_EN_S, (mr->access & IB_ACCESS_REMOTE_WRITE ? 1 : 0)); roce_set_bit(mpt_entry->byte_8_mw_cnt_en, V2_MPT_BYTE_8_LW_EN_S, (mr->access & IB_ACCESS_LOCAL_WRITE ? 1 : 0)); mpt_entry->byte_8_mw_cnt_en = cpu_to_le32(mpt_entry->byte_8_mw_cnt_en); roce_set_bit(mpt_entry->byte_12_mw_pa, V2_MPT_BYTE_12_PA_S, mr->type == MR_TYPE_MR ? 0 : 1); mpt_entry->byte_12_mw_pa = cpu_to_le32(mpt_entry->byte_12_mw_pa); mpt_entry->len_l = cpu_to_le32(lower_32_bits(mr->size)); mpt_entry->len_h = cpu_to_le32(upper_32_bits(mr->size)); mpt_entry->lkey = cpu_to_le32(mr->key); mpt_entry->va_l = cpu_to_le32(lower_32_bits(mr->iova)); mpt_entry->va_h = cpu_to_le32(upper_32_bits(mr->iova)); if (mr->type == MR_TYPE_DMA) return 0; mpt_entry->pbl_size = cpu_to_le32(mr->pbl_size); mpt_entry->pbl_ba_l = cpu_to_le32(lower_32_bits(mr->pbl_ba >> 3)); roce_set_field(mpt_entry->byte_48_mode_ba, V2_MPT_BYTE_48_PBL_BA_H_M, V2_MPT_BYTE_48_PBL_BA_H_S, upper_32_bits(mr->pbl_ba >> 3)); mpt_entry->byte_48_mode_ba = cpu_to_le32(mpt_entry->byte_48_mode_ba); pages = (u64 *)__get_free_page(GFP_KERNEL); if (!pages) return -ENOMEM; i = 0; for_each_sg(mr->umem->sg_head.sgl, sg, mr->umem->nmap, entry) { pages[i] = ((u64)sg_dma_address(sg)) >> 6; /* Record the first 2 entry directly to MTPT table */ if (i >= HNS_ROCE_V2_MAX_INNER_MTPT_NUM - 1) break; i++; } mpt_entry->pa0_l = cpu_to_le32(lower_32_bits(pages[0])); roce_set_field(mpt_entry->byte_56_pa0_h, V2_MPT_BYTE_56_PA0_H_M, V2_MPT_BYTE_56_PA0_H_S, upper_32_bits(pages[0])); mpt_entry->byte_56_pa0_h = cpu_to_le32(mpt_entry->byte_56_pa0_h); mpt_entry->pa1_l = cpu_to_le32(lower_32_bits(pages[1])); roce_set_field(mpt_entry->byte_64_buf_pa1, V2_MPT_BYTE_64_PA1_H_M, V2_MPT_BYTE_64_PA1_H_S, upper_32_bits(pages[1])); free_page((unsigned long)pages); roce_set_field(mpt_entry->byte_64_buf_pa1, V2_MPT_BYTE_64_PBL_BUF_PG_SZ_M, V2_MPT_BYTE_64_PBL_BUF_PG_SZ_S, mr->pbl_buf_pg_sz); mpt_entry->byte_64_buf_pa1 = cpu_to_le32(mpt_entry->byte_64_buf_pa1); return 0; } static void *get_cqe_v2(struct hns_roce_cq *hr_cq, int n) { return hns_roce_buf_offset(&hr_cq->hr_buf.hr_buf, n * HNS_ROCE_V2_CQE_ENTRY_SIZE); } static void *get_sw_cqe_v2(struct hns_roce_cq *hr_cq, int n) { struct hns_roce_v2_cqe *cqe = get_cqe_v2(hr_cq, n & hr_cq->ib_cq.cqe); /* Get cqe when Owner bit is Conversely with the MSB of cons_idx */ return (roce_get_bit(cqe->byte_4, V2_CQE_BYTE_4_OWNER_S) ^ !!(n & (hr_cq->ib_cq.cqe + 1))) ? cqe : NULL; } static struct hns_roce_v2_cqe *next_cqe_sw_v2(struct hns_roce_cq *hr_cq) { return get_sw_cqe_v2(hr_cq, hr_cq->cons_index); } static void hns_roce_v2_cq_set_ci(struct hns_roce_cq *hr_cq, u32 cons_index) { struct hns_roce_v2_cq_db cq_db; cq_db.byte_4 = 0; cq_db.parameter = 0; roce_set_field(cq_db.byte_4, V2_CQ_DB_BYTE_4_TAG_M, V2_CQ_DB_BYTE_4_TAG_S, hr_cq->cqn); roce_set_field(cq_db.byte_4, V2_CQ_DB_BYTE_4_CMD_M, V2_CQ_DB_BYTE_4_CMD_S, HNS_ROCE_V2_CQ_DB_PTR); roce_set_field(cq_db.parameter, V2_CQ_DB_PARAMETER_CONS_IDX_M, V2_CQ_DB_PARAMETER_CONS_IDX_S, cons_index & ((hr_cq->cq_depth << 1) - 1)); roce_set_field(cq_db.parameter, V2_CQ_DB_PARAMETER_CMD_SN_M, V2_CQ_DB_PARAMETER_CMD_SN_S, 1); hns_roce_write64_k((__be32 *)&cq_db, hr_cq->cq_db_l); } static void __hns_roce_v2_cq_clean(struct hns_roce_cq *hr_cq, u32 qpn, struct hns_roce_srq *srq) { struct hns_roce_v2_cqe *cqe, *dest; u32 prod_index; int nfreed = 0; u8 owner_bit; for (prod_index = hr_cq->cons_index; get_sw_cqe_v2(hr_cq, prod_index); ++prod_index) { if (prod_index == hr_cq->cons_index + hr_cq->ib_cq.cqe) break; } /* * Now backwards through the CQ, removing CQ entries * that match our QP by overwriting them with next entries. */ while ((int) --prod_index - (int) hr_cq->cons_index >= 0) { cqe = get_cqe_v2(hr_cq, prod_index & hr_cq->ib_cq.cqe); if ((roce_get_field(cqe->byte_16, V2_CQE_BYTE_16_LCL_QPN_M, V2_CQE_BYTE_16_LCL_QPN_S) & HNS_ROCE_V2_CQE_QPN_MASK) == qpn) { /* In v1 engine, not support SRQ */ ++nfreed; } else if (nfreed) { dest = get_cqe_v2(hr_cq, (prod_index + nfreed) & hr_cq->ib_cq.cqe); owner_bit = roce_get_bit(dest->byte_4, V2_CQE_BYTE_4_OWNER_S); memcpy(dest, cqe, sizeof(*cqe)); roce_set_bit(dest->byte_4, V2_CQE_BYTE_4_OWNER_S, owner_bit); } } if (nfreed) { hr_cq->cons_index += nfreed; /* * Make sure update of buffer contents is done before * updating consumer index. */ wmb(); hns_roce_v2_cq_set_ci(hr_cq, hr_cq->cons_index); } } static void hns_roce_v2_cq_clean(struct hns_roce_cq *hr_cq, u32 qpn, struct hns_roce_srq *srq) { spin_lock_irq(&hr_cq->lock); __hns_roce_v2_cq_clean(hr_cq, qpn, srq); spin_unlock_irq(&hr_cq->lock); } static void hns_roce_v2_write_cqc(struct hns_roce_dev *hr_dev, struct hns_roce_cq *hr_cq, void *mb_buf, u64 *mtts, dma_addr_t dma_handle, int nent, u32 vector) { struct hns_roce_v2_cq_context *cq_context; cq_context = mb_buf; memset(cq_context, 0, sizeof(*cq_context)); roce_set_field(cq_context->byte_4_pg_ceqn, V2_CQC_BYTE_4_CQ_ST_M, V2_CQC_BYTE_4_CQ_ST_S, V2_CQ_STATE_VALID); roce_set_field(cq_context->byte_4_pg_ceqn, V2_CQC_BYTE_4_SHIFT_M, V2_CQC_BYTE_4_SHIFT_S, ilog2((unsigned int)nent)); roce_set_field(cq_context->byte_4_pg_ceqn, V2_CQC_BYTE_4_CEQN_M, V2_CQC_BYTE_4_CEQN_S, vector); cq_context->byte_4_pg_ceqn = cpu_to_le32(cq_context->byte_4_pg_ceqn); roce_set_field(cq_context->byte_8_cqn, V2_CQC_BYTE_8_CQN_M, V2_CQC_BYTE_8_CQN_S, hr_cq->cqn); cq_context->cqe_cur_blk_addr = (u32)(mtts[0] >> PAGE_ADDR_SHIFT); cq_context->cqe_cur_blk_addr = cpu_to_le32(cq_context->cqe_cur_blk_addr); roce_set_field(cq_context->byte_16_hop_addr, V2_CQC_BYTE_16_CQE_CUR_BLK_ADDR_M, V2_CQC_BYTE_16_CQE_CUR_BLK_ADDR_S, cpu_to_le32((mtts[0]) >> (32 + PAGE_ADDR_SHIFT))); roce_set_field(cq_context->byte_16_hop_addr, V2_CQC_BYTE_16_CQE_HOP_NUM_M, V2_CQC_BYTE_16_CQE_HOP_NUM_S, hr_dev->caps.cqe_hop_num == HNS_ROCE_HOP_NUM_0 ? 0 : hr_dev->caps.cqe_hop_num); cq_context->cqe_nxt_blk_addr = (u32)(mtts[1] >> PAGE_ADDR_SHIFT); roce_set_field(cq_context->byte_24_pgsz_addr, V2_CQC_BYTE_24_CQE_NXT_BLK_ADDR_M, V2_CQC_BYTE_24_CQE_NXT_BLK_ADDR_S, cpu_to_le32((mtts[1]) >> (32 + PAGE_ADDR_SHIFT))); roce_set_field(cq_context->byte_24_pgsz_addr, V2_CQC_BYTE_24_CQE_BA_PG_SZ_M, V2_CQC_BYTE_24_CQE_BA_PG_SZ_S, hr_dev->caps.cqe_ba_pg_sz); roce_set_field(cq_context->byte_24_pgsz_addr, V2_CQC_BYTE_24_CQE_BUF_PG_SZ_M, V2_CQC_BYTE_24_CQE_BUF_PG_SZ_S, hr_dev->caps.cqe_buf_pg_sz); cq_context->cqe_ba = (u32)(dma_handle >> 3); roce_set_field(cq_context->byte_40_cqe_ba, V2_CQC_BYTE_40_CQE_BA_M, V2_CQC_BYTE_40_CQE_BA_S, (dma_handle >> (32 + 3))); } static int hns_roce_v2_req_notify_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags) { struct hns_roce_cq *hr_cq = to_hr_cq(ibcq); u32 notification_flag; u32 doorbell[2]; doorbell[0] = 0; doorbell[1] = 0; notification_flag = (flags & IB_CQ_SOLICITED_MASK) == IB_CQ_SOLICITED ? V2_CQ_DB_REQ_NOT : V2_CQ_DB_REQ_NOT_SOL; /* * flags = 0; Notification Flag = 1, next * flags = 1; Notification Flag = 0, solocited */ roce_set_field(doorbell[0], V2_CQ_DB_BYTE_4_TAG_M, V2_DB_BYTE_4_TAG_S, hr_cq->cqn); roce_set_field(doorbell[0], V2_CQ_DB_BYTE_4_CMD_M, V2_DB_BYTE_4_CMD_S, HNS_ROCE_V2_CQ_DB_NTR); roce_set_field(doorbell[1], V2_CQ_DB_PARAMETER_CONS_IDX_M, V2_CQ_DB_PARAMETER_CONS_IDX_S, hr_cq->cons_index & ((hr_cq->cq_depth << 1) - 1)); roce_set_field(doorbell[1], V2_CQ_DB_PARAMETER_CMD_SN_M, V2_CQ_DB_PARAMETER_CMD_SN_S, 1); roce_set_bit(doorbell[1], V2_CQ_DB_PARAMETER_NOTIFY_S, notification_flag); hns_roce_write64_k(doorbell, hr_cq->cq_db_l); return 0; } static int hns_roce_v2_poll_one(struct hns_roce_cq *hr_cq, struct hns_roce_qp **cur_qp, struct ib_wc *wc) { struct hns_roce_dev *hr_dev; struct hns_roce_v2_cqe *cqe; struct hns_roce_qp *hr_qp; struct hns_roce_wq *wq; int is_send; u16 wqe_ctr; u32 opcode; u32 status; int qpn; /* Find cqe according to consumer index */ cqe = next_cqe_sw_v2(hr_cq); if (!cqe) return -EAGAIN; ++hr_cq->cons_index; /* Memory barrier */ rmb(); /* 0->SQ, 1->RQ */ is_send = !roce_get_bit(cqe->byte_4, V2_CQE_BYTE_4_S_R_S); qpn = roce_get_field(cqe->byte_16, V2_CQE_BYTE_16_LCL_QPN_M, V2_CQE_BYTE_16_LCL_QPN_S); if (!*cur_qp || (qpn & HNS_ROCE_V2_CQE_QPN_MASK) != (*cur_qp)->qpn) { hr_dev = to_hr_dev(hr_cq->ib_cq.device); hr_qp = __hns_roce_qp_lookup(hr_dev, qpn); if (unlikely(!hr_qp)) { dev_err(hr_dev->dev, "CQ %06lx with entry for unknown QPN %06x\n", hr_cq->cqn, (qpn & HNS_ROCE_V2_CQE_QPN_MASK)); return -EINVAL; } *cur_qp = hr_qp; } wc->qp = &(*cur_qp)->ibqp; wc->vendor_err = 0; status = roce_get_field(cqe->byte_4, V2_CQE_BYTE_4_STATUS_M, V2_CQE_BYTE_4_STATUS_S); switch (status & HNS_ROCE_V2_CQE_STATUS_MASK) { case HNS_ROCE_CQE_V2_SUCCESS: wc->status = IB_WC_SUCCESS; break; case HNS_ROCE_CQE_V2_LOCAL_LENGTH_ERR: wc->status = IB_WC_LOC_LEN_ERR; break; case HNS_ROCE_CQE_V2_LOCAL_QP_OP_ERR: wc->status = IB_WC_LOC_QP_OP_ERR; break; case HNS_ROCE_CQE_V2_LOCAL_PROT_ERR: wc->status = IB_WC_LOC_PROT_ERR; break; case HNS_ROCE_CQE_V2_WR_FLUSH_ERR: wc->status = IB_WC_WR_FLUSH_ERR; break; case HNS_ROCE_CQE_V2_MW_BIND_ERR: wc->status = IB_WC_MW_BIND_ERR; break; case HNS_ROCE_CQE_V2_BAD_RESP_ERR: wc->status = IB_WC_BAD_RESP_ERR; break; case HNS_ROCE_CQE_V2_LOCAL_ACCESS_ERR: wc->status = IB_WC_LOC_ACCESS_ERR; break; case HNS_ROCE_CQE_V2_REMOTE_INVAL_REQ_ERR: wc->status = IB_WC_REM_INV_REQ_ERR; break; case HNS_ROCE_CQE_V2_REMOTE_ACCESS_ERR: wc->status = IB_WC_REM_ACCESS_ERR; break; case HNS_ROCE_CQE_V2_REMOTE_OP_ERR: wc->status = IB_WC_REM_OP_ERR; break; case HNS_ROCE_CQE_V2_TRANSPORT_RETRY_EXC_ERR: wc->status = IB_WC_RETRY_EXC_ERR; break; case HNS_ROCE_CQE_V2_RNR_RETRY_EXC_ERR: wc->status = IB_WC_RNR_RETRY_EXC_ERR; break; case HNS_ROCE_CQE_V2_REMOTE_ABORT_ERR: wc->status = IB_WC_REM_ABORT_ERR; break; default: wc->status = IB_WC_GENERAL_ERR; break; } /* CQE status error, directly return */ if (wc->status != IB_WC_SUCCESS) return 0; if (is_send) { wc->wc_flags = 0; /* SQ corresponding to CQE */ switch (roce_get_field(cqe->byte_4, V2_CQE_BYTE_4_OPCODE_M, V2_CQE_BYTE_4_OPCODE_S) & 0x1f) { case HNS_ROCE_SQ_OPCODE_SEND: wc->opcode = IB_WC_SEND; break; case HNS_ROCE_SQ_OPCODE_SEND_WITH_INV: wc->opcode = IB_WC_SEND; break; case HNS_ROCE_SQ_OPCODE_SEND_WITH_IMM: wc->opcode = IB_WC_SEND; wc->wc_flags |= IB_WC_WITH_IMM; break; case HNS_ROCE_SQ_OPCODE_RDMA_READ: wc->opcode = IB_WC_RDMA_READ; wc->byte_len = le32_to_cpu(cqe->byte_cnt); break; case HNS_ROCE_SQ_OPCODE_RDMA_WRITE: wc->opcode = IB_WC_RDMA_WRITE; break; case HNS_ROCE_SQ_OPCODE_RDMA_WRITE_WITH_IMM: wc->opcode = IB_WC_RDMA_WRITE; wc->wc_flags |= IB_WC_WITH_IMM; break; case HNS_ROCE_SQ_OPCODE_LOCAL_INV: wc->opcode = IB_WC_LOCAL_INV; wc->wc_flags |= IB_WC_WITH_INVALIDATE; break; case HNS_ROCE_SQ_OPCODE_ATOMIC_COMP_AND_SWAP: wc->opcode = IB_WC_COMP_SWAP; wc->byte_len = 8; break; case HNS_ROCE_SQ_OPCODE_ATOMIC_FETCH_AND_ADD: wc->opcode = IB_WC_FETCH_ADD; wc->byte_len = 8; break; case HNS_ROCE_SQ_OPCODE_ATOMIC_MASK_COMP_AND_SWAP: wc->opcode = IB_WC_MASKED_COMP_SWAP; wc->byte_len = 8; break; case HNS_ROCE_SQ_OPCODE_ATOMIC_MASK_FETCH_AND_ADD: wc->opcode = IB_WC_MASKED_FETCH_ADD; wc->byte_len = 8; break; case HNS_ROCE_SQ_OPCODE_FAST_REG_WR: wc->opcode = IB_WC_REG_MR; break; case HNS_ROCE_SQ_OPCODE_BIND_MW: wc->opcode = IB_WC_REG_MR; break; default: wc->status = IB_WC_GENERAL_ERR; break; } wq = &(*cur_qp)->sq; if ((*cur_qp)->sq_signal_bits) { /* * If sg_signal_bit is 1, * firstly tail pointer updated to wqe * which current cqe correspond to */ wqe_ctr = (u16)roce_get_field(cqe->byte_4, V2_CQE_BYTE_4_WQE_INDX_M, V2_CQE_BYTE_4_WQE_INDX_S); wq->tail += (wqe_ctr - (u16)wq->tail) & (wq->wqe_cnt - 1); } wc->wr_id = wq->wrid[wq->tail & (wq->wqe_cnt - 1)]; ++wq->tail; } else { /* RQ correspond to CQE */ wc->byte_len = le32_to_cpu(cqe->byte_cnt); opcode = roce_get_field(cqe->byte_4, V2_CQE_BYTE_4_OPCODE_M, V2_CQE_BYTE_4_OPCODE_S); switch (opcode & 0x1f) { case HNS_ROCE_V2_OPCODE_RDMA_WRITE_IMM: wc->opcode = IB_WC_RECV_RDMA_WITH_IMM; wc->wc_flags = IB_WC_WITH_IMM; wc->ex.imm_data = le32_to_cpu(cqe->rkey_immtdata); break; case HNS_ROCE_V2_OPCODE_SEND: wc->opcode = IB_WC_RECV; wc->wc_flags = 0; break; case HNS_ROCE_V2_OPCODE_SEND_WITH_IMM: wc->opcode = IB_WC_RECV; wc->wc_flags = IB_WC_WITH_IMM; wc->ex.imm_data = le32_to_cpu(cqe->rkey_immtdata); break; case HNS_ROCE_V2_OPCODE_SEND_WITH_INV: wc->opcode = IB_WC_RECV; wc->wc_flags = IB_WC_WITH_INVALIDATE; wc->ex.invalidate_rkey = cqe->rkey_immtdata; break; default: wc->status = IB_WC_GENERAL_ERR; break; } /* Update tail pointer, record wr_id */ wq = &(*cur_qp)->rq; wc->wr_id = wq->wrid[wq->tail & (wq->wqe_cnt - 1)]; ++wq->tail; wc->sl = (u8)roce_get_field(cqe->byte_32, V2_CQE_BYTE_32_SL_M, V2_CQE_BYTE_32_SL_S); wc->src_qp = (u8)roce_get_field(cqe->byte_32, V2_CQE_BYTE_32_RMT_QPN_M, V2_CQE_BYTE_32_RMT_QPN_S); wc->wc_flags |= (roce_get_bit(cqe->byte_32, V2_CQE_BYTE_32_GRH_S) ? IB_WC_GRH : 0); } return 0; } static int hns_roce_v2_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc) { struct hns_roce_cq *hr_cq = to_hr_cq(ibcq); struct hns_roce_qp *cur_qp = NULL; unsigned long flags; int npolled; spin_lock_irqsave(&hr_cq->lock, flags); for (npolled = 0; npolled < num_entries; ++npolled) { if (hns_roce_v2_poll_one(hr_cq, &cur_qp, wc + npolled)) break; } if (npolled) { /* Memory barrier */ wmb(); hns_roce_v2_cq_set_ci(hr_cq, hr_cq->cons_index); } spin_unlock_irqrestore(&hr_cq->lock, flags); return npolled; } static int hns_roce_v2_set_hem(struct hns_roce_dev *hr_dev, struct hns_roce_hem_table *table, int obj, int step_idx) { struct device *dev = hr_dev->dev; struct hns_roce_cmd_mailbox *mailbox; struct hns_roce_hem_iter iter; struct hns_roce_hem_mhop mhop; struct hns_roce_hem *hem; unsigned long mhop_obj = obj; int i, j, k; int ret = 0; u64 hem_idx = 0; u64 l1_idx = 0; u64 bt_ba = 0; u32 chunk_ba_num; u32 hop_num; u16 op = 0xff; if (!hns_roce_check_whether_mhop(hr_dev, table->type)) return 0; hns_roce_calc_hem_mhop(hr_dev, table, &mhop_obj, &mhop); i = mhop.l0_idx; j = mhop.l1_idx; k = mhop.l2_idx; hop_num = mhop.hop_num; chunk_ba_num = mhop.bt_chunk_size / 8; if (hop_num == 2) { hem_idx = i * chunk_ba_num * chunk_ba_num + j * chunk_ba_num + k; l1_idx = i * chunk_ba_num + j; } else if (hop_num == 1) { hem_idx = i * chunk_ba_num + j; } else if (hop_num == HNS_ROCE_HOP_NUM_0) { hem_idx = i; } switch (table->type) { case HEM_TYPE_QPC: op = HNS_ROCE_CMD_WRITE_QPC_BT0; break; case HEM_TYPE_MTPT: op = HNS_ROCE_CMD_WRITE_MPT_BT0; break; case HEM_TYPE_CQC: op = HNS_ROCE_CMD_WRITE_CQC_BT0; break; case HEM_TYPE_SRQC: op = HNS_ROCE_CMD_WRITE_SRQC_BT0; break; default: dev_warn(dev, "Table %d not to be written by mailbox!\n", table->type); return 0; } op += step_idx; mailbox = hns_roce_alloc_cmd_mailbox(hr_dev); if (IS_ERR(mailbox)) return PTR_ERR(mailbox); if (check_whether_last_step(hop_num, step_idx)) { hem = table->hem[hem_idx]; for (hns_roce_hem_first(hem, &iter); !hns_roce_hem_last(&iter); hns_roce_hem_next(&iter)) { bt_ba = hns_roce_hem_addr(&iter); /* configure the ba, tag, and op */ ret = hns_roce_cmd_mbox(hr_dev, bt_ba, mailbox->dma, obj, 0, op, HNS_ROCE_CMD_TIMEOUT_MSECS); } } else { if (step_idx == 0) bt_ba = table->bt_l0_dma_addr[i]; else if (step_idx == 1 && hop_num == 2) bt_ba = table->bt_l1_dma_addr[l1_idx]; /* configure the ba, tag, and op */ ret = hns_roce_cmd_mbox(hr_dev, bt_ba, mailbox->dma, obj, 0, op, HNS_ROCE_CMD_TIMEOUT_MSECS); } hns_roce_free_cmd_mailbox(hr_dev, mailbox); return ret; } static int hns_roce_v2_clear_hem(struct hns_roce_dev *hr_dev, struct hns_roce_hem_table *table, int obj, int step_idx) { struct device *dev = hr_dev->dev; struct hns_roce_cmd_mailbox *mailbox; int ret = 0; u16 op = 0xff; if (!hns_roce_check_whether_mhop(hr_dev, table->type)) return 0; switch (table->type) { case HEM_TYPE_QPC: op = HNS_ROCE_CMD_DESTROY_QPC_BT0; break; case HEM_TYPE_MTPT: op = HNS_ROCE_CMD_DESTROY_MPT_BT0; break; case HEM_TYPE_CQC: op = HNS_ROCE_CMD_DESTROY_CQC_BT0; break; case HEM_TYPE_SRQC: op = HNS_ROCE_CMD_DESTROY_SRQC_BT0; break; default: dev_warn(dev, "Table %d not to be destroyed by mailbox!\n", table->type); return 0; } op += step_idx; mailbox = hns_roce_alloc_cmd_mailbox(hr_dev); if (IS_ERR(mailbox)) return PTR_ERR(mailbox); /* configure the tag and op */ ret = hns_roce_cmd_mbox(hr_dev, 0, mailbox->dma, obj, 0, op, HNS_ROCE_CMD_TIMEOUT_MSECS); hns_roce_free_cmd_mailbox(hr_dev, mailbox); return ret; } static int hns_roce_v2_qp_modify(struct hns_roce_dev *hr_dev, struct hns_roce_mtt *mtt, enum ib_qp_state cur_state, enum ib_qp_state new_state, struct hns_roce_v2_qp_context *context, struct hns_roce_qp *hr_qp) { struct hns_roce_cmd_mailbox *mailbox; int ret; mailbox = hns_roce_alloc_cmd_mailbox(hr_dev); if (IS_ERR(mailbox)) return PTR_ERR(mailbox); memcpy(mailbox->buf, context, sizeof(*context) * 2); ret = hns_roce_cmd_mbox(hr_dev, mailbox->dma, 0, hr_qp->qpn, 0, HNS_ROCE_CMD_MODIFY_QPC, HNS_ROCE_CMD_TIMEOUT_MSECS); hns_roce_free_cmd_mailbox(hr_dev, mailbox); return ret; } static void modify_qp_reset_to_init(struct ib_qp *ibqp, const struct ib_qp_attr *attr, struct hns_roce_v2_qp_context *context, struct hns_roce_v2_qp_context *qpc_mask) { struct hns_roce_qp *hr_qp = to_hr_qp(ibqp); /* * In v2 engine, software pass context and context mask to hardware * when modifying qp. If software need modify some fields in context, * we should set all bits of the relevant fields in context mask to * 0 at the same time, else set them to 0x1. */ roce_set_field(context->byte_4_sqpn_tst, V2_QPC_BYTE_4_TST_M, V2_QPC_BYTE_4_TST_S, to_hr_qp_type(hr_qp->ibqp.qp_type)); roce_set_field(qpc_mask->byte_4_sqpn_tst, V2_QPC_BYTE_4_TST_M, V2_QPC_BYTE_4_TST_S, 0); roce_set_field(context->byte_4_sqpn_tst, V2_QPC_BYTE_4_SGE_SHIFT_M, V2_QPC_BYTE_4_SGE_SHIFT_S, hr_qp->sq.max_gs > 2 ? ilog2((unsigned int)hr_qp->sge.sge_cnt) : 0); roce_set_field(qpc_mask->byte_4_sqpn_tst, V2_QPC_BYTE_4_SGE_SHIFT_M, V2_QPC_BYTE_4_SGE_SHIFT_S, 0); roce_set_field(context->byte_4_sqpn_tst, V2_QPC_BYTE_4_SQPN_M, V2_QPC_BYTE_4_SQPN_S, hr_qp->qpn); roce_set_field(qpc_mask->byte_4_sqpn_tst, V2_QPC_BYTE_4_SQPN_M, V2_QPC_BYTE_4_SQPN_S, 0); roce_set_field(context->byte_16_buf_ba_pg_sz, V2_QPC_BYTE_16_PD_M, V2_QPC_BYTE_16_PD_S, to_hr_pd(ibqp->pd)->pdn); roce_set_field(qpc_mask->byte_16_buf_ba_pg_sz, V2_QPC_BYTE_16_PD_M, V2_QPC_BYTE_16_PD_S, 0); roce_set_field(context->byte_20_smac_sgid_idx, V2_QPC_BYTE_20_RQWS_M, V2_QPC_BYTE_20_RQWS_S, ilog2(hr_qp->rq.max_gs)); roce_set_field(qpc_mask->byte_20_smac_sgid_idx, V2_QPC_BYTE_20_RQWS_M, V2_QPC_BYTE_20_RQWS_S, 0); roce_set_field(context->byte_20_smac_sgid_idx, V2_QPC_BYTE_20_SQ_SHIFT_M, V2_QPC_BYTE_20_SQ_SHIFT_S, ilog2((unsigned int)hr_qp->sq.wqe_cnt)); roce_set_field(qpc_mask->byte_20_smac_sgid_idx, V2_QPC_BYTE_20_SQ_SHIFT_M, V2_QPC_BYTE_20_SQ_SHIFT_S, 0); roce_set_field(context->byte_20_smac_sgid_idx, V2_QPC_BYTE_20_RQ_SHIFT_M, V2_QPC_BYTE_20_RQ_SHIFT_S, ilog2((unsigned int)hr_qp->rq.wqe_cnt)); roce_set_field(qpc_mask->byte_20_smac_sgid_idx, V2_QPC_BYTE_20_RQ_SHIFT_M, V2_QPC_BYTE_20_RQ_SHIFT_S, 0); /* No VLAN need to set 0xFFF */ roce_set_field(context->byte_24_mtu_tc, V2_QPC_BYTE_24_VLAN_IDX_M, V2_QPC_BYTE_24_VLAN_IDX_S, 0xfff); roce_set_field(qpc_mask->byte_24_mtu_tc, V2_QPC_BYTE_24_VLAN_IDX_M, V2_QPC_BYTE_24_VLAN_IDX_S, 0); /* * Set some fields in context to zero, Because the default values * of all fields in context are zero, we need not set them to 0 again. * but we should set the relevant fields of context mask to 0. */ roce_set_bit(qpc_mask->byte_56_dqpn_err, V2_QPC_BYTE_56_SQ_TX_ERR_S, 0); roce_set_bit(qpc_mask->byte_56_dqpn_err, V2_QPC_BYTE_56_SQ_RX_ERR_S, 0); roce_set_bit(qpc_mask->byte_56_dqpn_err, V2_QPC_BYTE_56_RQ_TX_ERR_S, 0); roce_set_bit(qpc_mask->byte_56_dqpn_err, V2_QPC_BYTE_56_RQ_RX_ERR_S, 0); roce_set_field(qpc_mask->byte_60_qpst_mapid, V2_QPC_BYTE_60_MAPID_M, V2_QPC_BYTE_60_MAPID_S, 0); roce_set_bit(qpc_mask->byte_60_qpst_mapid, V2_QPC_BYTE_60_INNER_MAP_IND_S, 0); roce_set_bit(qpc_mask->byte_60_qpst_mapid, V2_QPC_BYTE_60_SQ_MAP_IND_S, 0); roce_set_bit(qpc_mask->byte_60_qpst_mapid, V2_QPC_BYTE_60_RQ_MAP_IND_S, 0); roce_set_bit(qpc_mask->byte_60_qpst_mapid, V2_QPC_BYTE_60_EXT_MAP_IND_S, 0); roce_set_bit(qpc_mask->byte_60_qpst_mapid, V2_QPC_BYTE_60_SQ_RLS_IND_S, 0); roce_set_bit(qpc_mask->byte_60_qpst_mapid, V2_QPC_BYTE_60_SQ_EXT_IND_S, 0); roce_set_bit(qpc_mask->byte_28_at_fl, V2_QPC_BYTE_28_CNP_TX_FLAG_S, 0); roce_set_bit(qpc_mask->byte_28_at_fl, V2_QPC_BYTE_28_CE_FLAG_S, 0); roce_set_bit(context->byte_76_srqn_op_en, V2_QPC_BYTE_76_RRE_S, !!(attr->qp_access_flags & IB_ACCESS_REMOTE_READ)); roce_set_bit(qpc_mask->byte_76_srqn_op_en, V2_QPC_BYTE_76_RRE_S, 0); roce_set_bit(context->byte_76_srqn_op_en, V2_QPC_BYTE_76_RWE_S, !!(attr->qp_access_flags & IB_ACCESS_REMOTE_WRITE)); roce_set_bit(qpc_mask->byte_76_srqn_op_en, V2_QPC_BYTE_76_RWE_S, 0); roce_set_bit(context->byte_76_srqn_op_en, V2_QPC_BYTE_76_ATE_S, !!(attr->qp_access_flags & IB_ACCESS_REMOTE_ATOMIC)); roce_set_bit(qpc_mask->byte_76_srqn_op_en, V2_QPC_BYTE_76_ATE_S, 0); roce_set_bit(qpc_mask->byte_76_srqn_op_en, V2_QPC_BYTE_76_RQIE_S, 0); roce_set_field(context->byte_80_rnr_rx_cqn, V2_QPC_BYTE_80_RX_CQN_M, V2_QPC_BYTE_80_RX_CQN_S, to_hr_cq(ibqp->recv_cq)->cqn); roce_set_field(qpc_mask->byte_80_rnr_rx_cqn, V2_QPC_BYTE_80_RX_CQN_M, V2_QPC_BYTE_80_RX_CQN_S, 0); if (ibqp->srq) { roce_set_field(context->byte_76_srqn_op_en, V2_QPC_BYTE_76_SRQN_M, V2_QPC_BYTE_76_SRQN_S, to_hr_srq(ibqp->srq)->srqn); roce_set_field(qpc_mask->byte_76_srqn_op_en, V2_QPC_BYTE_76_SRQN_M, V2_QPC_BYTE_76_SRQN_S, 0); roce_set_bit(context->byte_76_srqn_op_en, V2_QPC_BYTE_76_SRQ_EN_S, 1); roce_set_bit(qpc_mask->byte_76_srqn_op_en, V2_QPC_BYTE_76_SRQ_EN_S, 0); } roce_set_field(qpc_mask->byte_84_rq_ci_pi, V2_QPC_BYTE_84_RQ_PRODUCER_IDX_M, V2_QPC_BYTE_84_RQ_PRODUCER_IDX_S, 0); roce_set_field(qpc_mask->byte_84_rq_ci_pi, V2_QPC_BYTE_84_RQ_CONSUMER_IDX_M, V2_QPC_BYTE_84_RQ_CONSUMER_IDX_S, 0); roce_set_field(qpc_mask->byte_92_srq_info, V2_QPC_BYTE_92_SRQ_INFO_M, V2_QPC_BYTE_92_SRQ_INFO_S, 0); roce_set_field(qpc_mask->byte_96_rx_reqmsn, V2_QPC_BYTE_96_RX_REQ_MSN_M, V2_QPC_BYTE_96_RX_REQ_MSN_S, 0); roce_set_field(qpc_mask->byte_104_rq_sge, V2_QPC_BYTE_104_RQ_CUR_WQE_SGE_NUM_M, V2_QPC_BYTE_104_RQ_CUR_WQE_SGE_NUM_S, 0); roce_set_bit(qpc_mask->byte_108_rx_reqepsn, V2_QPC_BYTE_108_RX_REQ_PSN_ERR_S, 0); roce_set_field(qpc_mask->byte_108_rx_reqepsn, V2_QPC_BYTE_108_RX_REQ_LAST_OPTYPE_M, V2_QPC_BYTE_108_RX_REQ_LAST_OPTYPE_S, 0); roce_set_bit(qpc_mask->byte_108_rx_reqepsn, V2_QPC_BYTE_108_RX_REQ_RNR_S, 0); qpc_mask->rq_rnr_timer = 0; qpc_mask->rx_msg_len = 0; qpc_mask->rx_rkey_pkt_info = 0; qpc_mask->rx_va = 0; roce_set_field(qpc_mask->byte_132_trrl, V2_QPC_BYTE_132_TRRL_HEAD_MAX_M, V2_QPC_BYTE_132_TRRL_HEAD_MAX_S, 0); roce_set_field(qpc_mask->byte_132_trrl, V2_QPC_BYTE_132_TRRL_TAIL_MAX_M, V2_QPC_BYTE_132_TRRL_TAIL_MAX_S, 0); roce_set_bit(qpc_mask->byte_140_raq, V2_QPC_BYTE_140_RSVD_RAQ_MAP_S, 0); roce_set_field(qpc_mask->byte_140_raq, V2_QPC_BYTE_140_RAQ_TRRL_HEAD_M, V2_QPC_BYTE_140_RAQ_TRRL_HEAD_S, 0); roce_set_field(qpc_mask->byte_140_raq, V2_QPC_BYTE_140_RAQ_TRRL_TAIL_M, V2_QPC_BYTE_140_RAQ_TRRL_TAIL_S, 0); roce_set_field(qpc_mask->byte_144_raq, V2_QPC_BYTE_144_RAQ_RTY_INI_PSN_M, V2_QPC_BYTE_144_RAQ_RTY_INI_PSN_S, 0); roce_set_bit(qpc_mask->byte_144_raq, V2_QPC_BYTE_144_RAQ_RTY_INI_IND_S, 0); roce_set_field(qpc_mask->byte_144_raq, V2_QPC_BYTE_144_RAQ_CREDIT_M, V2_QPC_BYTE_144_RAQ_CREDIT_S, 0); roce_set_bit(qpc_mask->byte_144_raq, V2_QPC_BYTE_144_RESP_RTY_FLG_S, 0); roce_set_field(qpc_mask->byte_148_raq, V2_QPC_BYTE_148_RQ_MSN_M, V2_QPC_BYTE_148_RQ_MSN_S, 0); roce_set_field(qpc_mask->byte_148_raq, V2_QPC_BYTE_148_RAQ_SYNDROME_M, V2_QPC_BYTE_148_RAQ_SYNDROME_S, 0); roce_set_field(qpc_mask->byte_152_raq, V2_QPC_BYTE_152_RAQ_PSN_M, V2_QPC_BYTE_152_RAQ_PSN_S, 0); roce_set_field(qpc_mask->byte_152_raq, V2_QPC_BYTE_152_RAQ_TRRL_RTY_HEAD_M, V2_QPC_BYTE_152_RAQ_TRRL_RTY_HEAD_S, 0); roce_set_field(qpc_mask->byte_156_raq, V2_QPC_BYTE_156_RAQ_USE_PKTN_M, V2_QPC_BYTE_156_RAQ_USE_PKTN_S, 0); roce_set_field(qpc_mask->byte_160_sq_ci_pi, V2_QPC_BYTE_160_SQ_PRODUCER_IDX_M, V2_QPC_BYTE_160_SQ_PRODUCER_IDX_S, 0); roce_set_field(qpc_mask->byte_160_sq_ci_pi, V2_QPC_BYTE_160_SQ_CONSUMER_IDX_M, V2_QPC_BYTE_160_SQ_CONSUMER_IDX_S, 0); roce_set_field(context->byte_168_irrl_idx, V2_QPC_BYTE_168_SQ_SHIFT_BAK_M, V2_QPC_BYTE_168_SQ_SHIFT_BAK_S, ilog2((unsigned int)hr_qp->sq.wqe_cnt)); roce_set_field(qpc_mask->byte_168_irrl_idx, V2_QPC_BYTE_168_SQ_SHIFT_BAK_M, V2_QPC_BYTE_168_SQ_SHIFT_BAK_S, 0); roce_set_bit(qpc_mask->byte_168_irrl_idx, V2_QPC_BYTE_168_MSG_RTY_LP_FLG_S, 0); roce_set_field(qpc_mask->byte_168_irrl_idx, V2_QPC_BYTE_168_IRRL_IDX_LSB_M, V2_QPC_BYTE_168_IRRL_IDX_LSB_S, 0); roce_set_field(context->byte_172_sq_psn, V2_QPC_BYTE_172_ACK_REQ_FREQ_M, V2_QPC_BYTE_172_ACK_REQ_FREQ_S, 4); roce_set_field(qpc_mask->byte_172_sq_psn, V2_QPC_BYTE_172_ACK_REQ_FREQ_M, V2_QPC_BYTE_172_ACK_REQ_FREQ_S, 0); roce_set_bit(qpc_mask->byte_172_sq_psn, V2_QPC_BYTE_172_MSG_RNR_FLG_S, 0); roce_set_field(qpc_mask->byte_176_msg_pktn, V2_QPC_BYTE_176_MSG_USE_PKTN_M, V2_QPC_BYTE_176_MSG_USE_PKTN_S, 0); roce_set_field(qpc_mask->byte_176_msg_pktn, V2_QPC_BYTE_176_IRRL_HEAD_PRE_M, V2_QPC_BYTE_176_IRRL_HEAD_PRE_S, 0); roce_set_field(qpc_mask->byte_184_irrl_idx, V2_QPC_BYTE_184_IRRL_IDX_MSB_M, V2_QPC_BYTE_184_IRRL_IDX_MSB_S, 0); qpc_mask->cur_sge_offset = 0; roce_set_field(qpc_mask->byte_192_ext_sge, V2_QPC_BYTE_192_CUR_SGE_IDX_M, V2_QPC_BYTE_192_CUR_SGE_IDX_S, 0); roce_set_field(qpc_mask->byte_192_ext_sge, V2_QPC_BYTE_192_EXT_SGE_NUM_LEFT_M, V2_QPC_BYTE_192_EXT_SGE_NUM_LEFT_S, 0); roce_set_field(qpc_mask->byte_196_sq_psn, V2_QPC_BYTE_196_IRRL_HEAD_M, V2_QPC_BYTE_196_IRRL_HEAD_S, 0); roce_set_field(qpc_mask->byte_200_sq_max, V2_QPC_BYTE_200_SQ_MAX_IDX_M, V2_QPC_BYTE_200_SQ_MAX_IDX_S, 0); roce_set_field(qpc_mask->byte_200_sq_max, V2_QPC_BYTE_200_LCL_OPERATED_CNT_M, V2_QPC_BYTE_200_LCL_OPERATED_CNT_S, 0); roce_set_bit(qpc_mask->byte_208_irrl, V2_QPC_BYTE_208_PKT_RNR_FLG_S, 0); roce_set_bit(qpc_mask->byte_208_irrl, V2_QPC_BYTE_208_PKT_RTY_FLG_S, 0); roce_set_field(qpc_mask->byte_212_lsn, V2_QPC_BYTE_212_CHECK_FLG_M, V2_QPC_BYTE_212_CHECK_FLG_S, 0); qpc_mask->sq_timer = 0; roce_set_field(qpc_mask->byte_220_retry_psn_msn, V2_QPC_BYTE_220_RETRY_MSG_MSN_M, V2_QPC_BYTE_220_RETRY_MSG_MSN_S, 0); roce_set_field(qpc_mask->byte_232_irrl_sge, V2_QPC_BYTE_232_IRRL_SGE_IDX_M, V2_QPC_BYTE_232_IRRL_SGE_IDX_S, 0); qpc_mask->irrl_cur_sge_offset = 0; roce_set_field(qpc_mask->byte_240_irrl_tail, V2_QPC_BYTE_240_IRRL_TAIL_REAL_M, V2_QPC_BYTE_240_IRRL_TAIL_REAL_S, 0); roce_set_field(qpc_mask->byte_240_irrl_tail, V2_QPC_BYTE_240_IRRL_TAIL_RD_M, V2_QPC_BYTE_240_IRRL_TAIL_RD_S, 0); roce_set_field(qpc_mask->byte_240_irrl_tail, V2_QPC_BYTE_240_RX_ACK_MSN_M, V2_QPC_BYTE_240_RX_ACK_MSN_S, 0); roce_set_field(qpc_mask->byte_248_ack_psn, V2_QPC_BYTE_248_IRRL_PSN_M, V2_QPC_BYTE_248_IRRL_PSN_S, 0); roce_set_bit(qpc_mask->byte_248_ack_psn, V2_QPC_BYTE_248_ACK_PSN_ERR_S, 0); roce_set_field(qpc_mask->byte_248_ack_psn, V2_QPC_BYTE_248_ACK_LAST_OPTYPE_M, V2_QPC_BYTE_248_ACK_LAST_OPTYPE_S, 0); roce_set_bit(qpc_mask->byte_248_ack_psn, V2_QPC_BYTE_248_IRRL_PSN_VLD_S, 0); roce_set_bit(qpc_mask->byte_248_ack_psn, V2_QPC_BYTE_248_RNR_RETRY_FLAG_S, 0); roce_set_bit(qpc_mask->byte_248_ack_psn, V2_QPC_BYTE_248_CQ_ERR_IND_S, 0); hr_qp->access_flags = attr->qp_access_flags; hr_qp->pkey_index = attr->pkey_index; roce_set_field(context->byte_252_err_txcqn, V2_QPC_BYTE_252_TX_CQN_M, V2_QPC_BYTE_252_TX_CQN_S, to_hr_cq(ibqp->send_cq)->cqn); roce_set_field(qpc_mask->byte_252_err_txcqn, V2_QPC_BYTE_252_TX_CQN_M, V2_QPC_BYTE_252_TX_CQN_S, 0); roce_set_field(qpc_mask->byte_252_err_txcqn, V2_QPC_BYTE_252_ERR_TYPE_M, V2_QPC_BYTE_252_ERR_TYPE_S, 0); roce_set_field(qpc_mask->byte_256_sqflush_rqcqe, V2_QPC_BYTE_256_RQ_CQE_IDX_M, V2_QPC_BYTE_256_RQ_CQE_IDX_S, 0); roce_set_field(qpc_mask->byte_256_sqflush_rqcqe, V2_QPC_BYTE_256_SQ_FLUSH_IDX_M, V2_QPC_BYTE_256_SQ_FLUSH_IDX_S, 0); } static void modify_qp_init_to_init(struct ib_qp *ibqp, const struct ib_qp_attr *attr, int attr_mask, struct hns_roce_v2_qp_context *context, struct hns_roce_v2_qp_context *qpc_mask) { struct hns_roce_qp *hr_qp = to_hr_qp(ibqp); /* * In v2 engine, software pass context and context mask to hardware * when modifying qp. If software need modify some fields in context, * we should set all bits of the relevant fields in context mask to * 0 at the same time, else set them to 0x1. */ roce_set_field(context->byte_4_sqpn_tst, V2_QPC_BYTE_4_TST_M, V2_QPC_BYTE_4_TST_S, to_hr_qp_type(hr_qp->ibqp.qp_type)); roce_set_field(qpc_mask->byte_4_sqpn_tst, V2_QPC_BYTE_4_TST_M, V2_QPC_BYTE_4_TST_S, 0); roce_set_field(context->byte_4_sqpn_tst, V2_QPC_BYTE_4_SGE_SHIFT_M, V2_QPC_BYTE_4_SGE_SHIFT_S, hr_qp->sq.max_gs > 2 ? ilog2((unsigned int)hr_qp->sge.sge_cnt) : 0); roce_set_field(qpc_mask->byte_4_sqpn_tst, V2_QPC_BYTE_4_SGE_SHIFT_M, V2_QPC_BYTE_4_SGE_SHIFT_S, 0); if (attr_mask & IB_QP_ACCESS_FLAGS) { roce_set_bit(context->byte_76_srqn_op_en, V2_QPC_BYTE_76_RRE_S, !!(attr->qp_access_flags & IB_ACCESS_REMOTE_READ)); roce_set_bit(qpc_mask->byte_76_srqn_op_en, V2_QPC_BYTE_76_RRE_S, 0); roce_set_bit(context->byte_76_srqn_op_en, V2_QPC_BYTE_76_RWE_S, !!(attr->qp_access_flags & IB_ACCESS_REMOTE_WRITE)); roce_set_bit(qpc_mask->byte_76_srqn_op_en, V2_QPC_BYTE_76_RWE_S, 0); roce_set_bit(context->byte_76_srqn_op_en, V2_QPC_BYTE_76_ATE_S, !!(attr->qp_access_flags & IB_ACCESS_REMOTE_ATOMIC)); roce_set_bit(qpc_mask->byte_76_srqn_op_en, V2_QPC_BYTE_76_ATE_S, 0); } else { roce_set_bit(context->byte_76_srqn_op_en, V2_QPC_BYTE_76_RRE_S, !!(hr_qp->access_flags & IB_ACCESS_REMOTE_READ)); roce_set_bit(qpc_mask->byte_76_srqn_op_en, V2_QPC_BYTE_76_RRE_S, 0); roce_set_bit(context->byte_76_srqn_op_en, V2_QPC_BYTE_76_RWE_S, !!(hr_qp->access_flags & IB_ACCESS_REMOTE_WRITE)); roce_set_bit(qpc_mask->byte_76_srqn_op_en, V2_QPC_BYTE_76_RWE_S, 0); roce_set_bit(context->byte_76_srqn_op_en, V2_QPC_BYTE_76_ATE_S, !!(hr_qp->access_flags & IB_ACCESS_REMOTE_ATOMIC)); roce_set_bit(qpc_mask->byte_76_srqn_op_en, V2_QPC_BYTE_76_ATE_S, 0); } roce_set_field(context->byte_20_smac_sgid_idx, V2_QPC_BYTE_20_SQ_SHIFT_M, V2_QPC_BYTE_20_SQ_SHIFT_S, ilog2((unsigned int)hr_qp->sq.wqe_cnt)); roce_set_field(qpc_mask->byte_20_smac_sgid_idx, V2_QPC_BYTE_20_SQ_SHIFT_M, V2_QPC_BYTE_20_SQ_SHIFT_S, 0); roce_set_field(context->byte_20_smac_sgid_idx, V2_QPC_BYTE_20_RQ_SHIFT_M, V2_QPC_BYTE_20_RQ_SHIFT_S, ilog2((unsigned int)hr_qp->rq.wqe_cnt)); roce_set_field(qpc_mask->byte_20_smac_sgid_idx, V2_QPC_BYTE_20_RQ_SHIFT_M, V2_QPC_BYTE_20_RQ_SHIFT_S, 0); roce_set_field(context->byte_16_buf_ba_pg_sz, V2_QPC_BYTE_16_PD_M, V2_QPC_BYTE_16_PD_S, to_hr_pd(ibqp->pd)->pdn); roce_set_field(qpc_mask->byte_16_buf_ba_pg_sz, V2_QPC_BYTE_16_PD_M, V2_QPC_BYTE_16_PD_S, 0); roce_set_field(context->byte_80_rnr_rx_cqn, V2_QPC_BYTE_80_RX_CQN_M, V2_QPC_BYTE_80_RX_CQN_S, to_hr_cq(ibqp->recv_cq)->cqn); roce_set_field(qpc_mask->byte_80_rnr_rx_cqn, V2_QPC_BYTE_80_RX_CQN_M, V2_QPC_BYTE_80_RX_CQN_S, 0); roce_set_field(context->byte_252_err_txcqn, V2_QPC_BYTE_252_TX_CQN_M, V2_QPC_BYTE_252_TX_CQN_S, to_hr_cq(ibqp->recv_cq)->cqn); roce_set_field(qpc_mask->byte_252_err_txcqn, V2_QPC_BYTE_252_TX_CQN_M, V2_QPC_BYTE_252_TX_CQN_S, 0); if (ibqp->srq) { roce_set_bit(context->byte_76_srqn_op_en, V2_QPC_BYTE_76_SRQ_EN_S, 1); roce_set_bit(qpc_mask->byte_76_srqn_op_en, V2_QPC_BYTE_76_SRQ_EN_S, 0); roce_set_field(context->byte_76_srqn_op_en, V2_QPC_BYTE_76_SRQN_M, V2_QPC_BYTE_76_SRQN_S, to_hr_srq(ibqp->srq)->srqn); roce_set_field(qpc_mask->byte_76_srqn_op_en, V2_QPC_BYTE_76_SRQN_M, V2_QPC_BYTE_76_SRQN_S, 0); } if (attr_mask & IB_QP_PKEY_INDEX) context->qkey_xrcd = attr->pkey_index; else context->qkey_xrcd = hr_qp->pkey_index; roce_set_field(context->byte_4_sqpn_tst, V2_QPC_BYTE_4_SQPN_M, V2_QPC_BYTE_4_SQPN_S, hr_qp->qpn); roce_set_field(qpc_mask->byte_4_sqpn_tst, V2_QPC_BYTE_4_SQPN_M, V2_QPC_BYTE_4_SQPN_S, 0); roce_set_field(context->byte_56_dqpn_err, V2_QPC_BYTE_56_DQPN_M, V2_QPC_BYTE_56_DQPN_S, hr_qp->qpn); roce_set_field(qpc_mask->byte_56_dqpn_err, V2_QPC_BYTE_56_DQPN_M, V2_QPC_BYTE_56_DQPN_S, 0); roce_set_field(context->byte_168_irrl_idx, V2_QPC_BYTE_168_SQ_SHIFT_BAK_M, V2_QPC_BYTE_168_SQ_SHIFT_BAK_S, ilog2((unsigned int)hr_qp->sq.wqe_cnt)); roce_set_field(qpc_mask->byte_168_irrl_idx, V2_QPC_BYTE_168_SQ_SHIFT_BAK_M, V2_QPC_BYTE_168_SQ_SHIFT_BAK_S, 0); } static int modify_qp_init_to_rtr(struct ib_qp *ibqp, const struct ib_qp_attr *attr, int attr_mask, struct hns_roce_v2_qp_context *context, struct hns_roce_v2_qp_context *qpc_mask) { const struct ib_global_route *grh = rdma_ah_read_grh(&attr->ah_attr); struct hns_roce_dev *hr_dev = to_hr_dev(ibqp->device); struct hns_roce_qp *hr_qp = to_hr_qp(ibqp); struct device *dev = hr_dev->dev; dma_addr_t dma_handle_2; dma_addr_t dma_handle; u32 page_size; u8 port_num; u64 *mtts_2; u64 *mtts; u8 *dmac; u8 *smac; int port; /* Search qp buf's mtts */ mtts = hns_roce_table_find(hr_dev, &hr_dev->mr_table.mtt_table, hr_qp->mtt.first_seg, &dma_handle); if (!mtts) { dev_err(dev, "qp buf pa find failed\n"); return -EINVAL; } /* Search IRRL's mtts */ mtts_2 = hns_roce_table_find(hr_dev, &hr_dev->qp_table.irrl_table, hr_qp->qpn, &dma_handle_2); if (!mtts_2) { dev_err(dev, "qp irrl_table find failed\n"); return -EINVAL; } if ((attr_mask & IB_QP_ALT_PATH) || (attr_mask & IB_QP_ACCESS_FLAGS) || (attr_mask & IB_QP_PKEY_INDEX) || (attr_mask & IB_QP_QKEY)) { dev_err(dev, "INIT2RTR attr_mask (0x%x) error\n", attr_mask); return -EINVAL; } dmac = (u8 *)attr->ah_attr.roce.dmac; context->wqe_sge_ba = (u32)(dma_handle >> 3); qpc_mask->wqe_sge_ba = 0; /* * In v2 engine, software pass context and context mask to hardware * when modifying qp. If software need modify some fields in context, * we should set all bits of the relevant fields in context mask to * 0 at the same time, else set them to 0x1. */ roce_set_field(context->byte_12_sq_hop, V2_QPC_BYTE_12_WQE_SGE_BA_M, V2_QPC_BYTE_12_WQE_SGE_BA_S, dma_handle >> (32 + 3)); roce_set_field(qpc_mask->byte_12_sq_hop, V2_QPC_BYTE_12_WQE_SGE_BA_M, V2_QPC_BYTE_12_WQE_SGE_BA_S, 0); roce_set_field(context->byte_12_sq_hop, V2_QPC_BYTE_12_SQ_HOP_NUM_M, V2_QPC_BYTE_12_SQ_HOP_NUM_S, hr_dev->caps.mtt_hop_num == HNS_ROCE_HOP_NUM_0 ? 0 : hr_dev->caps.mtt_hop_num); roce_set_field(qpc_mask->byte_12_sq_hop, V2_QPC_BYTE_12_SQ_HOP_NUM_M, V2_QPC_BYTE_12_SQ_HOP_NUM_S, 0); roce_set_field(context->byte_20_smac_sgid_idx, V2_QPC_BYTE_20_SGE_HOP_NUM_M, V2_QPC_BYTE_20_SGE_HOP_NUM_S, hr_qp->sq.max_gs > 2 ? hr_dev->caps.mtt_hop_num : 0); roce_set_field(qpc_mask->byte_20_smac_sgid_idx, V2_QPC_BYTE_20_SGE_HOP_NUM_M, V2_QPC_BYTE_20_SGE_HOP_NUM_S, 0); roce_set_field(context->byte_20_smac_sgid_idx, V2_QPC_BYTE_20_RQ_HOP_NUM_M, V2_QPC_BYTE_20_RQ_HOP_NUM_S, hr_dev->caps.mtt_hop_num == HNS_ROCE_HOP_NUM_0 ? 0 : hr_dev->caps.mtt_hop_num); roce_set_field(qpc_mask->byte_20_smac_sgid_idx, V2_QPC_BYTE_20_RQ_HOP_NUM_M, V2_QPC_BYTE_20_RQ_HOP_NUM_S, 0); roce_set_field(context->byte_16_buf_ba_pg_sz, V2_QPC_BYTE_16_WQE_SGE_BA_PG_SZ_M, V2_QPC_BYTE_16_WQE_SGE_BA_PG_SZ_S, hr_dev->caps.mtt_ba_pg_sz); roce_set_field(qpc_mask->byte_16_buf_ba_pg_sz, V2_QPC_BYTE_16_WQE_SGE_BA_PG_SZ_M, V2_QPC_BYTE_16_WQE_SGE_BA_PG_SZ_S, 0); roce_set_field(context->byte_16_buf_ba_pg_sz, V2_QPC_BYTE_16_WQE_SGE_BUF_PG_SZ_M, V2_QPC_BYTE_16_WQE_SGE_BUF_PG_SZ_S, hr_dev->caps.mtt_buf_pg_sz); roce_set_field(qpc_mask->byte_16_buf_ba_pg_sz, V2_QPC_BYTE_16_WQE_SGE_BUF_PG_SZ_M, V2_QPC_BYTE_16_WQE_SGE_BUF_PG_SZ_S, 0); roce_set_field(context->byte_80_rnr_rx_cqn, V2_QPC_BYTE_80_MIN_RNR_TIME_M, V2_QPC_BYTE_80_MIN_RNR_TIME_S, attr->min_rnr_timer); roce_set_field(qpc_mask->byte_80_rnr_rx_cqn, V2_QPC_BYTE_80_MIN_RNR_TIME_M, V2_QPC_BYTE_80_MIN_RNR_TIME_S, 0); page_size = 1 << (hr_dev->caps.mtt_buf_pg_sz + PAGE_SHIFT); context->rq_cur_blk_addr = (u32)(mtts[hr_qp->rq.offset / page_size] >> PAGE_ADDR_SHIFT); qpc_mask->rq_cur_blk_addr = 0; roce_set_field(context->byte_92_srq_info, V2_QPC_BYTE_92_RQ_CUR_BLK_ADDR_M, V2_QPC_BYTE_92_RQ_CUR_BLK_ADDR_S, mtts[hr_qp->rq.offset / page_size] >> (32 + PAGE_ADDR_SHIFT)); roce_set_field(qpc_mask->byte_92_srq_info, V2_QPC_BYTE_92_RQ_CUR_BLK_ADDR_M, V2_QPC_BYTE_92_RQ_CUR_BLK_ADDR_S, 0); context->rq_nxt_blk_addr = (u32)(mtts[hr_qp->rq.offset / page_size + 1] >> PAGE_ADDR_SHIFT); qpc_mask->rq_nxt_blk_addr = 0; roce_set_field(context->byte_104_rq_sge, V2_QPC_BYTE_104_RQ_NXT_BLK_ADDR_M, V2_QPC_BYTE_104_RQ_NXT_BLK_ADDR_S, mtts[hr_qp->rq.offset / page_size + 1] >> (32 + PAGE_ADDR_SHIFT)); roce_set_field(qpc_mask->byte_104_rq_sge, V2_QPC_BYTE_104_RQ_NXT_BLK_ADDR_M, V2_QPC_BYTE_104_RQ_NXT_BLK_ADDR_S, 0); roce_set_field(context->byte_108_rx_reqepsn, V2_QPC_BYTE_108_RX_REQ_EPSN_M, V2_QPC_BYTE_108_RX_REQ_EPSN_S, attr->rq_psn); roce_set_field(qpc_mask->byte_108_rx_reqepsn, V2_QPC_BYTE_108_RX_REQ_EPSN_M, V2_QPC_BYTE_108_RX_REQ_EPSN_S, 0); context->irrl_ba = (u32)dma_handle_2; qpc_mask->irrl_ba = 0; roce_set_field(context->byte_208_irrl, V2_QPC_BYTE_208_IRRL_BA_M, V2_QPC_BYTE_208_IRRL_BA_S, (dma_handle_2 >> 32) & V2_QPC_BYTE_208_IRRL_BA_M); roce_set_field(qpc_mask->byte_208_irrl, V2_QPC_BYTE_208_IRRL_BA_M, V2_QPC_BYTE_208_IRRL_BA_S, 0); roce_set_bit(context->byte_208_irrl, V2_QPC_BYTE_208_RMT_E2E_S, 1); roce_set_bit(qpc_mask->byte_208_irrl, V2_QPC_BYTE_208_RMT_E2E_S, 0); roce_set_bit(context->byte_252_err_txcqn, V2_QPC_BYTE_252_SIG_TYPE_S, hr_qp->sq_signal_bits); roce_set_bit(qpc_mask->byte_252_err_txcqn, V2_QPC_BYTE_252_SIG_TYPE_S, 0); port = (attr_mask & IB_QP_PORT) ? (attr->port_num - 1) : hr_qp->port; smac = (u8 *)hr_dev->dev_addr[port]; /* when dmac equals smac or loop_idc is 1, it should loopback */ if (ether_addr_equal_unaligned(dmac, smac) || hr_dev->loop_idc == 0x1) { roce_set_bit(context->byte_28_at_fl, V2_QPC_BYTE_28_LBI_S, 1); roce_set_bit(qpc_mask->byte_28_at_fl, V2_QPC_BYTE_28_LBI_S, 0); } roce_set_field(context->byte_140_raq, V2_QPC_BYTE_140_RR_MAX_M, V2_QPC_BYTE_140_RR_MAX_S, ilog2((unsigned int)attr->max_dest_rd_atomic)); roce_set_field(qpc_mask->byte_140_raq, V2_QPC_BYTE_140_RR_MAX_M, V2_QPC_BYTE_140_RR_MAX_S, 0); roce_set_field(context->byte_56_dqpn_err, V2_QPC_BYTE_56_DQPN_M, V2_QPC_BYTE_56_DQPN_S, attr->dest_qp_num); roce_set_field(qpc_mask->byte_56_dqpn_err, V2_QPC_BYTE_56_DQPN_M, V2_QPC_BYTE_56_DQPN_S, 0); /* Configure GID index */ port_num = rdma_ah_get_port_num(&attr->ah_attr); roce_set_field(context->byte_20_smac_sgid_idx, V2_QPC_BYTE_20_SGID_IDX_M, V2_QPC_BYTE_20_SGID_IDX_S, hns_get_gid_index(hr_dev, port_num - 1, grh->sgid_index)); roce_set_field(qpc_mask->byte_20_smac_sgid_idx, V2_QPC_BYTE_20_SGID_IDX_M, V2_QPC_BYTE_20_SGID_IDX_S, 0); memcpy(&(context->dmac), dmac, 4); roce_set_field(context->byte_52_udpspn_dmac, V2_QPC_BYTE_52_DMAC_M, V2_QPC_BYTE_52_DMAC_S, *((u16 *)(&dmac[4]))); qpc_mask->dmac = 0; roce_set_field(qpc_mask->byte_52_udpspn_dmac, V2_QPC_BYTE_52_DMAC_M, V2_QPC_BYTE_52_DMAC_S, 0); roce_set_field(context->byte_56_dqpn_err, V2_QPC_BYTE_56_LP_PKTN_INI_M, V2_QPC_BYTE_56_LP_PKTN_INI_S, 4); roce_set_field(qpc_mask->byte_56_dqpn_err, V2_QPC_BYTE_56_LP_PKTN_INI_M, V2_QPC_BYTE_56_LP_PKTN_INI_S, 0); roce_set_field(context->byte_24_mtu_tc, V2_QPC_BYTE_24_HOP_LIMIT_M, V2_QPC_BYTE_24_HOP_LIMIT_S, grh->hop_limit); roce_set_field(qpc_mask->byte_24_mtu_tc, V2_QPC_BYTE_24_HOP_LIMIT_M, V2_QPC_BYTE_24_HOP_LIMIT_S, 0); roce_set_field(context->byte_28_at_fl, V2_QPC_BYTE_28_FL_M, V2_QPC_BYTE_28_FL_S, grh->flow_label); roce_set_field(qpc_mask->byte_28_at_fl, V2_QPC_BYTE_28_FL_M, V2_QPC_BYTE_28_FL_S, 0); roce_set_field(context->byte_24_mtu_tc, V2_QPC_BYTE_24_TC_M, V2_QPC_BYTE_24_TC_S, grh->traffic_class); roce_set_field(qpc_mask->byte_24_mtu_tc, V2_QPC_BYTE_24_TC_M, V2_QPC_BYTE_24_TC_S, 0); roce_set_field(context->byte_24_mtu_tc, V2_QPC_BYTE_24_MTU_M, V2_QPC_BYTE_24_MTU_S, attr->path_mtu); roce_set_field(qpc_mask->byte_24_mtu_tc, V2_QPC_BYTE_24_MTU_M, V2_QPC_BYTE_24_MTU_S, 0); memcpy(context->dgid, grh->dgid.raw, sizeof(grh->dgid.raw)); memset(qpc_mask->dgid, 0, sizeof(grh->dgid.raw)); roce_set_field(context->byte_84_rq_ci_pi, V2_QPC_BYTE_84_RQ_PRODUCER_IDX_M, V2_QPC_BYTE_84_RQ_PRODUCER_IDX_S, hr_qp->rq.head); roce_set_field(qpc_mask->byte_84_rq_ci_pi, V2_QPC_BYTE_84_RQ_PRODUCER_IDX_M, V2_QPC_BYTE_84_RQ_PRODUCER_IDX_S, 0); roce_set_field(qpc_mask->byte_84_rq_ci_pi, V2_QPC_BYTE_84_RQ_CONSUMER_IDX_M, V2_QPC_BYTE_84_RQ_CONSUMER_IDX_S, 0); roce_set_bit(qpc_mask->byte_108_rx_reqepsn, V2_QPC_BYTE_108_RX_REQ_PSN_ERR_S, 0); roce_set_field(qpc_mask->byte_96_rx_reqmsn, V2_QPC_BYTE_96_RX_REQ_MSN_M, V2_QPC_BYTE_96_RX_REQ_MSN_S, 0); roce_set_field(qpc_mask->byte_108_rx_reqepsn, V2_QPC_BYTE_108_RX_REQ_LAST_OPTYPE_M, V2_QPC_BYTE_108_RX_REQ_LAST_OPTYPE_S, 0); context->rq_rnr_timer = 0; qpc_mask->rq_rnr_timer = 0; roce_set_field(context->byte_152_raq, V2_QPC_BYTE_152_RAQ_PSN_M, V2_QPC_BYTE_152_RAQ_PSN_S, attr->rq_psn - 1); roce_set_field(qpc_mask->byte_152_raq, V2_QPC_BYTE_152_RAQ_PSN_M, V2_QPC_BYTE_152_RAQ_PSN_S, 0); roce_set_field(qpc_mask->byte_132_trrl, V2_QPC_BYTE_132_TRRL_HEAD_MAX_M, V2_QPC_BYTE_132_TRRL_HEAD_MAX_S, 0); roce_set_field(qpc_mask->byte_132_trrl, V2_QPC_BYTE_132_TRRL_TAIL_MAX_M, V2_QPC_BYTE_132_TRRL_TAIL_MAX_S, 0); roce_set_field(context->byte_168_irrl_idx, V2_QPC_BYTE_168_LP_SGEN_INI_M, V2_QPC_BYTE_168_LP_SGEN_INI_S, 3); roce_set_field(qpc_mask->byte_168_irrl_idx, V2_QPC_BYTE_168_LP_SGEN_INI_M, V2_QPC_BYTE_168_LP_SGEN_INI_S, 0); roce_set_field(context->byte_208_irrl, V2_QPC_BYTE_208_SR_MAX_M, V2_QPC_BYTE_208_SR_MAX_S, ilog2((unsigned int)attr->max_rd_atomic)); roce_set_field(qpc_mask->byte_208_irrl, V2_QPC_BYTE_208_SR_MAX_M, V2_QPC_BYTE_208_SR_MAX_S, 0); roce_set_field(context->byte_28_at_fl, V2_QPC_BYTE_28_SL_M, V2_QPC_BYTE_28_SL_S, rdma_ah_get_sl(&attr->ah_attr)); roce_set_field(qpc_mask->byte_28_at_fl, V2_QPC_BYTE_28_SL_M, V2_QPC_BYTE_28_SL_S, 0); hr_qp->sl = rdma_ah_get_sl(&attr->ah_attr); return 0; } static int modify_qp_rtr_to_rts(struct ib_qp *ibqp, const struct ib_qp_attr *attr, int attr_mask, struct hns_roce_v2_qp_context *context, struct hns_roce_v2_qp_context *qpc_mask) { struct hns_roce_dev *hr_dev = to_hr_dev(ibqp->device); struct hns_roce_qp *hr_qp = to_hr_qp(ibqp); struct device *dev = hr_dev->dev; dma_addr_t dma_handle; u64 *mtts; /* Search qp buf's mtts */ mtts = hns_roce_table_find(hr_dev, &hr_dev->mr_table.mtt_table, hr_qp->mtt.first_seg, &dma_handle); if (!mtts) { dev_err(dev, "qp buf pa find failed\n"); return -EINVAL; } /* If exist optional param, return error */ if ((attr_mask & IB_QP_ALT_PATH) || (attr_mask & IB_QP_ACCESS_FLAGS) || (attr_mask & IB_QP_QKEY) || (attr_mask & IB_QP_PATH_MIG_STATE) || (attr_mask & IB_QP_CUR_STATE) || (attr_mask & IB_QP_MIN_RNR_TIMER)) { dev_err(dev, "RTR2RTS attr_mask (0x%x)error\n", attr_mask); return -EINVAL; } /* * In v2 engine, software pass context and context mask to hardware * when modifying qp. If software need modify some fields in context, * we should set all bits of the relevant fields in context mask to * 0 at the same time, else set them to 0x1. */ roce_set_field(context->byte_60_qpst_mapid, V2_QPC_BYTE_60_RTY_NUM_INI_BAK_M, V2_QPC_BYTE_60_RTY_NUM_INI_BAK_S, attr->retry_cnt); roce_set_field(qpc_mask->byte_60_qpst_mapid, V2_QPC_BYTE_60_RTY_NUM_INI_BAK_M, V2_QPC_BYTE_60_RTY_NUM_INI_BAK_S, 0); context->sq_cur_blk_addr = (u32)(mtts[0] >> PAGE_ADDR_SHIFT); roce_set_field(context->byte_168_irrl_idx, V2_QPC_BYTE_168_SQ_CUR_BLK_ADDR_M, V2_QPC_BYTE_168_SQ_CUR_BLK_ADDR_S, mtts[0] >> (32 + PAGE_ADDR_SHIFT)); qpc_mask->sq_cur_blk_addr = 0; roce_set_field(qpc_mask->byte_168_irrl_idx, V2_QPC_BYTE_168_SQ_CUR_BLK_ADDR_M, V2_QPC_BYTE_168_SQ_CUR_BLK_ADDR_S, 0); context->rx_sq_cur_blk_addr = (u32)(mtts[0] >> PAGE_ADDR_SHIFT); roce_set_field(context->byte_232_irrl_sge, V2_QPC_BYTE_232_RX_SQ_CUR_BLK_ADDR_M, V2_QPC_BYTE_232_RX_SQ_CUR_BLK_ADDR_S, mtts[0] >> (32 + PAGE_ADDR_SHIFT)); qpc_mask->rx_sq_cur_blk_addr = 0; roce_set_field(qpc_mask->byte_232_irrl_sge, V2_QPC_BYTE_232_RX_SQ_CUR_BLK_ADDR_M, V2_QPC_BYTE_232_RX_SQ_CUR_BLK_ADDR_S, 0); /* * Set some fields in context to zero, Because the default values * of all fields in context are zero, we need not set them to 0 again. * but we should set the relevant fields of context mask to 0. */ roce_set_field(qpc_mask->byte_232_irrl_sge, V2_QPC_BYTE_232_IRRL_SGE_IDX_M, V2_QPC_BYTE_232_IRRL_SGE_IDX_S, 0); roce_set_field(qpc_mask->byte_240_irrl_tail, V2_QPC_BYTE_240_RX_ACK_MSN_M, V2_QPC_BYTE_240_RX_ACK_MSN_S, 0); roce_set_field(context->byte_244_rnr_rxack, V2_QPC_BYTE_244_RX_ACK_EPSN_M, V2_QPC_BYTE_244_RX_ACK_EPSN_S, attr->sq_psn); roce_set_field(qpc_mask->byte_244_rnr_rxack, V2_QPC_BYTE_244_RX_ACK_EPSN_M, V2_QPC_BYTE_244_RX_ACK_EPSN_S, 0); roce_set_field(qpc_mask->byte_248_ack_psn, V2_QPC_BYTE_248_ACK_LAST_OPTYPE_M, V2_QPC_BYTE_248_ACK_LAST_OPTYPE_S, 0); roce_set_bit(qpc_mask->byte_248_ack_psn, V2_QPC_BYTE_248_IRRL_PSN_VLD_S, 0); roce_set_field(qpc_mask->byte_248_ack_psn, V2_QPC_BYTE_248_IRRL_PSN_M, V2_QPC_BYTE_248_IRRL_PSN_S, 0); roce_set_field(qpc_mask->byte_240_irrl_tail, V2_QPC_BYTE_240_IRRL_TAIL_REAL_M, V2_QPC_BYTE_240_IRRL_TAIL_REAL_S, 0); roce_set_field(context->byte_220_retry_psn_msn, V2_QPC_BYTE_220_RETRY_MSG_PSN_M, V2_QPC_BYTE_220_RETRY_MSG_PSN_S, attr->sq_psn); roce_set_field(qpc_mask->byte_220_retry_psn_msn, V2_QPC_BYTE_220_RETRY_MSG_PSN_M, V2_QPC_BYTE_220_RETRY_MSG_PSN_S, 0); roce_set_field(context->byte_224_retry_msg, V2_QPC_BYTE_224_RETRY_MSG_PSN_M, V2_QPC_BYTE_224_RETRY_MSG_PSN_S, attr->sq_psn >> 16); roce_set_field(qpc_mask->byte_224_retry_msg, V2_QPC_BYTE_224_RETRY_MSG_PSN_M, V2_QPC_BYTE_224_RETRY_MSG_PSN_S, 0); roce_set_field(context->byte_224_retry_msg, V2_QPC_BYTE_224_RETRY_MSG_FPKT_PSN_M, V2_QPC_BYTE_224_RETRY_MSG_FPKT_PSN_S, attr->sq_psn); roce_set_field(qpc_mask->byte_224_retry_msg, V2_QPC_BYTE_224_RETRY_MSG_FPKT_PSN_M, V2_QPC_BYTE_224_RETRY_MSG_FPKT_PSN_S, 0); roce_set_field(qpc_mask->byte_220_retry_psn_msn, V2_QPC_BYTE_220_RETRY_MSG_MSN_M, V2_QPC_BYTE_220_RETRY_MSG_MSN_S, 0); roce_set_bit(qpc_mask->byte_248_ack_psn, V2_QPC_BYTE_248_RNR_RETRY_FLAG_S, 0); roce_set_field(qpc_mask->byte_212_lsn, V2_QPC_BYTE_212_CHECK_FLG_M, V2_QPC_BYTE_212_CHECK_FLG_S, 0); roce_set_field(context->byte_212_lsn, V2_QPC_BYTE_212_RETRY_CNT_M, V2_QPC_BYTE_212_RETRY_CNT_S, attr->retry_cnt); roce_set_field(qpc_mask->byte_212_lsn, V2_QPC_BYTE_212_RETRY_CNT_M, V2_QPC_BYTE_212_RETRY_CNT_S, 0); roce_set_field(context->byte_212_lsn, V2_QPC_BYTE_212_RETRY_NUM_INIT_M, V2_QPC_BYTE_212_RETRY_NUM_INIT_S, attr->retry_cnt); roce_set_field(qpc_mask->byte_212_lsn, V2_QPC_BYTE_212_RETRY_NUM_INIT_M, V2_QPC_BYTE_212_RETRY_NUM_INIT_S, 0); roce_set_field(context->byte_244_rnr_rxack, V2_QPC_BYTE_244_RNR_NUM_INIT_M, V2_QPC_BYTE_244_RNR_NUM_INIT_S, attr->rnr_retry); roce_set_field(qpc_mask->byte_244_rnr_rxack, V2_QPC_BYTE_244_RNR_NUM_INIT_M, V2_QPC_BYTE_244_RNR_NUM_INIT_S, 0); roce_set_field(context->byte_244_rnr_rxack, V2_QPC_BYTE_244_RNR_CNT_M, V2_QPC_BYTE_244_RNR_CNT_S, attr->rnr_retry); roce_set_field(qpc_mask->byte_244_rnr_rxack, V2_QPC_BYTE_244_RNR_CNT_M, V2_QPC_BYTE_244_RNR_CNT_S, 0); roce_set_field(context->byte_212_lsn, V2_QPC_BYTE_212_LSN_M, V2_QPC_BYTE_212_LSN_S, 0x100); roce_set_field(qpc_mask->byte_212_lsn, V2_QPC_BYTE_212_LSN_M, V2_QPC_BYTE_212_LSN_S, 0); if (attr->timeout < 0xf) roce_set_field(context->byte_28_at_fl, V2_QPC_BYTE_28_AT_M, V2_QPC_BYTE_28_AT_S, 0xf); else roce_set_field(context->byte_28_at_fl, V2_QPC_BYTE_28_AT_M, V2_QPC_BYTE_28_AT_S, attr->timeout); roce_set_field(qpc_mask->byte_28_at_fl, V2_QPC_BYTE_28_AT_M, V2_QPC_BYTE_28_AT_S, 0); roce_set_field(context->byte_28_at_fl, V2_QPC_BYTE_28_SL_M, V2_QPC_BYTE_28_SL_S, rdma_ah_get_sl(&attr->ah_attr)); roce_set_field(qpc_mask->byte_28_at_fl, V2_QPC_BYTE_28_SL_M, V2_QPC_BYTE_28_SL_S, 0); hr_qp->sl = rdma_ah_get_sl(&attr->ah_attr); roce_set_field(context->byte_172_sq_psn, V2_QPC_BYTE_172_SQ_CUR_PSN_M, V2_QPC_BYTE_172_SQ_CUR_PSN_S, attr->sq_psn); roce_set_field(qpc_mask->byte_172_sq_psn, V2_QPC_BYTE_172_SQ_CUR_PSN_M, V2_QPC_BYTE_172_SQ_CUR_PSN_S, 0); roce_set_field(qpc_mask->byte_196_sq_psn, V2_QPC_BYTE_196_IRRL_HEAD_M, V2_QPC_BYTE_196_IRRL_HEAD_S, 0); roce_set_field(context->byte_196_sq_psn, V2_QPC_BYTE_196_SQ_MAX_PSN_M, V2_QPC_BYTE_196_SQ_MAX_PSN_S, attr->sq_psn); roce_set_field(qpc_mask->byte_196_sq_psn, V2_QPC_BYTE_196_SQ_MAX_PSN_M, V2_QPC_BYTE_196_SQ_MAX_PSN_S, 0); return 0; } static int hns_roce_v2_modify_qp(struct ib_qp *ibqp, const struct ib_qp_attr *attr, int attr_mask, enum ib_qp_state cur_state, enum ib_qp_state new_state) { struct hns_roce_dev *hr_dev = to_hr_dev(ibqp->device); struct hns_roce_qp *hr_qp = to_hr_qp(ibqp); struct hns_roce_v2_qp_context *context; struct hns_roce_v2_qp_context *qpc_mask; struct device *dev = hr_dev->dev; int ret = -EINVAL; context = kzalloc(2 * sizeof(*context), GFP_KERNEL); if (!context) return -ENOMEM; qpc_mask = context + 1; /* * In v2 engine, software pass context and context mask to hardware * when modifying qp. If software need modify some fields in context, * we should set all bits of the relevant fields in context mask to * 0 at the same time, else set them to 0x1. */ memset(qpc_mask, 0xff, sizeof(*qpc_mask)); if (cur_state == IB_QPS_RESET && new_state == IB_QPS_INIT) { modify_qp_reset_to_init(ibqp, attr, context, qpc_mask); } else if (cur_state == IB_QPS_INIT && new_state == IB_QPS_INIT) { modify_qp_init_to_init(ibqp, attr, attr_mask, context, qpc_mask); } else if (cur_state == IB_QPS_INIT && new_state == IB_QPS_RTR) { ret = modify_qp_init_to_rtr(ibqp, attr, attr_mask, context, qpc_mask); if (ret) goto out; } else if (cur_state == IB_QPS_RTR && new_state == IB_QPS_RTS) { ret = modify_qp_rtr_to_rts(ibqp, attr, attr_mask, context, qpc_mask); if (ret) goto out; } else if ((cur_state == IB_QPS_RTS && new_state == IB_QPS_RTS) || (cur_state == IB_QPS_SQE && new_state == IB_QPS_RTS) || (cur_state == IB_QPS_RTS && new_state == IB_QPS_SQD) || (cur_state == IB_QPS_SQD && new_state == IB_QPS_SQD) || (cur_state == IB_QPS_SQD && new_state == IB_QPS_RTS) || (cur_state == IB_QPS_INIT && new_state == IB_QPS_RESET) || (cur_state == IB_QPS_RTR && new_state == IB_QPS_RESET) || (cur_state == IB_QPS_RTS && new_state == IB_QPS_RESET) || (cur_state == IB_QPS_ERR && new_state == IB_QPS_RESET) || (cur_state == IB_QPS_INIT && new_state == IB_QPS_ERR) || (cur_state == IB_QPS_RTR && new_state == IB_QPS_ERR) || (cur_state == IB_QPS_RTS && new_state == IB_QPS_ERR) || (cur_state == IB_QPS_SQD && new_state == IB_QPS_ERR) || (cur_state == IB_QPS_SQE && new_state == IB_QPS_ERR)) { /* Nothing */ ; } else { dev_err(dev, "Illegal state for QP!\n"); goto out; } /* Every status migrate must change state */ roce_set_field(context->byte_60_qpst_mapid, V2_QPC_BYTE_60_QP_ST_M, V2_QPC_BYTE_60_QP_ST_S, new_state); roce_set_field(qpc_mask->byte_60_qpst_mapid, V2_QPC_BYTE_60_QP_ST_M, V2_QPC_BYTE_60_QP_ST_S, 0); /* SW pass context to HW */ ret = hns_roce_v2_qp_modify(hr_dev, &hr_qp->mtt, cur_state, new_state, context, hr_qp); if (ret) { dev_err(dev, "hns_roce_qp_modify failed(%d)\n", ret); goto out; } hr_qp->state = new_state; if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC) hr_qp->resp_depth = attr->max_dest_rd_atomic; if (attr_mask & IB_QP_PORT) { hr_qp->port = attr->port_num - 1; hr_qp->phy_port = hr_dev->iboe.phy_port[hr_qp->port]; } if (new_state == IB_QPS_RESET && !ibqp->uobject) { hns_roce_v2_cq_clean(to_hr_cq(ibqp->recv_cq), hr_qp->qpn, ibqp->srq ? to_hr_srq(ibqp->srq) : NULL); if (ibqp->send_cq != ibqp->recv_cq) hns_roce_v2_cq_clean(to_hr_cq(ibqp->send_cq), hr_qp->qpn, NULL); hr_qp->rq.head = 0; hr_qp->rq.tail = 0; hr_qp->sq.head = 0; hr_qp->sq.tail = 0; hr_qp->sq_next_wqe = 0; hr_qp->next_sge = 0; } out: kfree(context); return ret; } static inline enum ib_qp_state to_ib_qp_st(enum hns_roce_v2_qp_state state) { switch (state) { case HNS_ROCE_QP_ST_RST: return IB_QPS_RESET; case HNS_ROCE_QP_ST_INIT: return IB_QPS_INIT; case HNS_ROCE_QP_ST_RTR: return IB_QPS_RTR; case HNS_ROCE_QP_ST_RTS: return IB_QPS_RTS; case HNS_ROCE_QP_ST_SQ_DRAINING: case HNS_ROCE_QP_ST_SQD: return IB_QPS_SQD; case HNS_ROCE_QP_ST_SQER: return IB_QPS_SQE; case HNS_ROCE_QP_ST_ERR: return IB_QPS_ERR; default: return -1; } } static int hns_roce_v2_query_qpc(struct hns_roce_dev *hr_dev, struct hns_roce_qp *hr_qp, struct hns_roce_v2_qp_context *hr_context) { struct hns_roce_cmd_mailbox *mailbox; int ret; mailbox = hns_roce_alloc_cmd_mailbox(hr_dev); if (IS_ERR(mailbox)) return PTR_ERR(mailbox); ret = hns_roce_cmd_mbox(hr_dev, 0, mailbox->dma, hr_qp->qpn, 0, HNS_ROCE_CMD_QUERY_QPC, HNS_ROCE_CMD_TIMEOUT_MSECS); if (ret) { dev_err(hr_dev->dev, "QUERY QP cmd process error\n"); goto out; } memcpy(hr_context, mailbox->buf, sizeof(*hr_context)); out: hns_roce_free_cmd_mailbox(hr_dev, mailbox); return ret; } static int hns_roce_v2_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int qp_attr_mask, struct ib_qp_init_attr *qp_init_attr) { struct hns_roce_dev *hr_dev = to_hr_dev(ibqp->device); struct hns_roce_qp *hr_qp = to_hr_qp(ibqp); struct hns_roce_v2_qp_context *context; struct device *dev = hr_dev->dev; int tmp_qp_state; int state; int ret; context = kzalloc(sizeof(*context), GFP_KERNEL); if (!context) return -ENOMEM; memset(qp_attr, 0, sizeof(*qp_attr)); memset(qp_init_attr, 0, sizeof(*qp_init_attr)); mutex_lock(&hr_qp->mutex); if (hr_qp->state == IB_QPS_RESET) { qp_attr->qp_state = IB_QPS_RESET; goto done; } ret = hns_roce_v2_query_qpc(hr_dev, hr_qp, context); if (ret) { dev_err(dev, "query qpc error\n"); ret = -EINVAL; goto out; } state = roce_get_field(context->byte_60_qpst_mapid, V2_QPC_BYTE_60_QP_ST_M, V2_QPC_BYTE_60_QP_ST_S); tmp_qp_state = to_ib_qp_st((enum hns_roce_v2_qp_state)state); if (tmp_qp_state == -1) { dev_err(dev, "Illegal ib_qp_state\n"); ret = -EINVAL; goto out; } hr_qp->state = (u8)tmp_qp_state; qp_attr->qp_state = (enum ib_qp_state)hr_qp->state; qp_attr->path_mtu = (enum ib_mtu)roce_get_field(context->byte_24_mtu_tc, V2_QPC_BYTE_24_MTU_M, V2_QPC_BYTE_24_MTU_S); qp_attr->path_mig_state = IB_MIG_ARMED; if (hr_qp->ibqp.qp_type == IB_QPT_UD) qp_attr->qkey = V2_QKEY_VAL; qp_attr->rq_psn = roce_get_field(context->byte_108_rx_reqepsn, V2_QPC_BYTE_108_RX_REQ_EPSN_M, V2_QPC_BYTE_108_RX_REQ_EPSN_S); qp_attr->sq_psn = (u32)roce_get_field(context->byte_172_sq_psn, V2_QPC_BYTE_172_SQ_CUR_PSN_M, V2_QPC_BYTE_172_SQ_CUR_PSN_S); qp_attr->dest_qp_num = (u8)roce_get_field(context->byte_56_dqpn_err, V2_QPC_BYTE_56_DQPN_M, V2_QPC_BYTE_56_DQPN_S); qp_attr->qp_access_flags = ((roce_get_bit(context->byte_76_srqn_op_en, V2_QPC_BYTE_76_RRE_S)) << 2) | ((roce_get_bit(context->byte_76_srqn_op_en, V2_QPC_BYTE_76_RWE_S)) << 1) | ((roce_get_bit(context->byte_76_srqn_op_en, V2_QPC_BYTE_76_ATE_S)) << 3); if (hr_qp->ibqp.qp_type == IB_QPT_RC || hr_qp->ibqp.qp_type == IB_QPT_UC) { struct ib_global_route *grh = rdma_ah_retrieve_grh(&qp_attr->ah_attr); rdma_ah_set_sl(&qp_attr->ah_attr, roce_get_field(context->byte_28_at_fl, V2_QPC_BYTE_28_SL_M, V2_QPC_BYTE_28_SL_S)); grh->flow_label = roce_get_field(context->byte_28_at_fl, V2_QPC_BYTE_28_FL_M, V2_QPC_BYTE_28_FL_S); grh->sgid_index = roce_get_field(context->byte_20_smac_sgid_idx, V2_QPC_BYTE_20_SGID_IDX_M, V2_QPC_BYTE_20_SGID_IDX_S); grh->hop_limit = roce_get_field(context->byte_24_mtu_tc, V2_QPC_BYTE_24_HOP_LIMIT_M, V2_QPC_BYTE_24_HOP_LIMIT_S); grh->traffic_class = roce_get_field(context->byte_24_mtu_tc, V2_QPC_BYTE_24_TC_M, V2_QPC_BYTE_24_TC_S); memcpy(grh->dgid.raw, context->dgid, sizeof(grh->dgid.raw)); } qp_attr->port_num = hr_qp->port + 1; qp_attr->sq_draining = 0; qp_attr->max_rd_atomic = 1 << roce_get_field(context->byte_208_irrl, V2_QPC_BYTE_208_SR_MAX_M, V2_QPC_BYTE_208_SR_MAX_S); qp_attr->max_dest_rd_atomic = 1 << roce_get_field(context->byte_140_raq, V2_QPC_BYTE_140_RR_MAX_M, V2_QPC_BYTE_140_RR_MAX_S); qp_attr->min_rnr_timer = (u8)roce_get_field(context->byte_80_rnr_rx_cqn, V2_QPC_BYTE_80_MIN_RNR_TIME_M, V2_QPC_BYTE_80_MIN_RNR_TIME_S); qp_attr->timeout = (u8)roce_get_field(context->byte_28_at_fl, V2_QPC_BYTE_28_AT_M, V2_QPC_BYTE_28_AT_S); qp_attr->retry_cnt = roce_get_field(context->byte_212_lsn, V2_QPC_BYTE_212_RETRY_CNT_M, V2_QPC_BYTE_212_RETRY_CNT_S); qp_attr->rnr_retry = context->rq_rnr_timer; done: qp_attr->cur_qp_state = qp_attr->qp_state; qp_attr->cap.max_recv_wr = hr_qp->rq.wqe_cnt; qp_attr->cap.max_recv_sge = hr_qp->rq.max_gs; if (!ibqp->uobject) { qp_attr->cap.max_send_wr = hr_qp->sq.wqe_cnt; qp_attr->cap.max_send_sge = hr_qp->sq.max_gs; } else { qp_attr->cap.max_send_wr = 0; qp_attr->cap.max_send_sge = 0; } qp_init_attr->cap = qp_attr->cap; out: mutex_unlock(&hr_qp->mutex); kfree(context); return ret; } static int hns_roce_v2_destroy_qp_common(struct hns_roce_dev *hr_dev, struct hns_roce_qp *hr_qp, int is_user) { struct hns_roce_cq *send_cq, *recv_cq; struct device *dev = hr_dev->dev; int ret; if (hr_qp->ibqp.qp_type == IB_QPT_RC && hr_qp->state != IB_QPS_RESET) { /* Modify qp to reset before destroying qp */ ret = hns_roce_v2_modify_qp(&hr_qp->ibqp, NULL, 0, hr_qp->state, IB_QPS_RESET); if (ret) { dev_err(dev, "modify QP %06lx to ERR failed.\n", hr_qp->qpn); return ret; } } send_cq = to_hr_cq(hr_qp->ibqp.send_cq); recv_cq = to_hr_cq(hr_qp->ibqp.recv_cq); hns_roce_lock_cqs(send_cq, recv_cq); if (!is_user) { __hns_roce_v2_cq_clean(recv_cq, hr_qp->qpn, hr_qp->ibqp.srq ? to_hr_srq(hr_qp->ibqp.srq) : NULL); if (send_cq != recv_cq) __hns_roce_v2_cq_clean(send_cq, hr_qp->qpn, NULL); } hns_roce_qp_remove(hr_dev, hr_qp); hns_roce_unlock_cqs(send_cq, recv_cq); hns_roce_qp_free(hr_dev, hr_qp); /* Not special_QP, free their QPN */ if ((hr_qp->ibqp.qp_type == IB_QPT_RC) || (hr_qp->ibqp.qp_type == IB_QPT_UC) || (hr_qp->ibqp.qp_type == IB_QPT_UD)) hns_roce_release_range_qp(hr_dev, hr_qp->qpn, 1); hns_roce_mtt_cleanup(hr_dev, &hr_qp->mtt); if (is_user) { ib_umem_release(hr_qp->umem); } else { kfree(hr_qp->sq.wrid); kfree(hr_qp->rq.wrid); hns_roce_buf_free(hr_dev, hr_qp->buff_size, &hr_qp->hr_buf); } return 0; } static int hns_roce_v2_destroy_qp(struct ib_qp *ibqp) { struct hns_roce_dev *hr_dev = to_hr_dev(ibqp->device); struct hns_roce_qp *hr_qp = to_hr_qp(ibqp); int ret; ret = hns_roce_v2_destroy_qp_common(hr_dev, hr_qp, !!ibqp->pd->uobject); if (ret) { dev_err(hr_dev->dev, "Destroy qp failed(%d)\n", ret); return ret; } if (hr_qp->ibqp.qp_type == IB_QPT_GSI) kfree(hr_to_hr_sqp(hr_qp)); else kfree(hr_qp); return 0; } static const struct hns_roce_hw hns_roce_hw_v2 = { .cmq_init = hns_roce_v2_cmq_init, .cmq_exit = hns_roce_v2_cmq_exit, .hw_profile = hns_roce_v2_profile, .post_mbox = hns_roce_v2_post_mbox, .chk_mbox = hns_roce_v2_chk_mbox, .set_gid = hns_roce_v2_set_gid, .set_mac = hns_roce_v2_set_mac, .write_mtpt = hns_roce_v2_write_mtpt, .write_cqc = hns_roce_v2_write_cqc, .set_hem = hns_roce_v2_set_hem, .clear_hem = hns_roce_v2_clear_hem, .modify_qp = hns_roce_v2_modify_qp, .query_qp = hns_roce_v2_query_qp, .destroy_qp = hns_roce_v2_destroy_qp, .post_send = hns_roce_v2_post_send, .post_recv = hns_roce_v2_post_recv, .req_notify_cq = hns_roce_v2_req_notify_cq, .poll_cq = hns_roce_v2_poll_cq, }; static const struct pci_device_id hns_roce_hw_v2_pci_tbl[] = { {PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_25GE_RDMA), 0}, {PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_25GE_RDMA_MACSEC), 0}, {PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_100G_RDMA_MACSEC), 0}, /* required last entry */ {0, } }; static int hns_roce_hw_v2_get_cfg(struct hns_roce_dev *hr_dev, struct hnae3_handle *handle) { const struct pci_device_id *id; id = pci_match_id(hns_roce_hw_v2_pci_tbl, hr_dev->pci_dev); if (!id) { dev_err(hr_dev->dev, "device is not compatible!\n"); return -ENXIO; } hr_dev->hw = &hns_roce_hw_v2; hr_dev->sdb_offset = ROCEE_DB_SQ_L_0_REG; hr_dev->odb_offset = hr_dev->sdb_offset; /* Get info from NIC driver. */ hr_dev->reg_base = handle->rinfo.roce_io_base; hr_dev->caps.num_ports = 1; hr_dev->iboe.netdevs[0] = handle->rinfo.netdev; hr_dev->iboe.phy_port[0] = 0; /* cmd issue mode: 0 is poll, 1 is event */ hr_dev->cmd_mod = 0; hr_dev->loop_idc = 0; return 0; } static int hns_roce_hw_v2_init_instance(struct hnae3_handle *handle) { struct hns_roce_dev *hr_dev; int ret; hr_dev = (struct hns_roce_dev *)ib_alloc_device(sizeof(*hr_dev)); if (!hr_dev) return -ENOMEM; hr_dev->priv = kzalloc(sizeof(struct hns_roce_v2_priv), GFP_KERNEL); if (!hr_dev->priv) { ret = -ENOMEM; goto error_failed_kzalloc; } hr_dev->pci_dev = handle->pdev; hr_dev->dev = &handle->pdev->dev; handle->priv = hr_dev; ret = hns_roce_hw_v2_get_cfg(hr_dev, handle); if (ret) { dev_err(hr_dev->dev, "Get Configuration failed!\n"); goto error_failed_get_cfg; } ret = hns_roce_init(hr_dev); if (ret) { dev_err(hr_dev->dev, "RoCE Engine init failed!\n"); goto error_failed_get_cfg; } return 0; error_failed_get_cfg: kfree(hr_dev->priv); error_failed_kzalloc: ib_dealloc_device(&hr_dev->ib_dev); return ret; } static void hns_roce_hw_v2_uninit_instance(struct hnae3_handle *handle, bool reset) { struct hns_roce_dev *hr_dev = (struct hns_roce_dev *)handle->priv; hns_roce_exit(hr_dev); kfree(hr_dev->priv); ib_dealloc_device(&hr_dev->ib_dev); } static const struct hnae3_client_ops hns_roce_hw_v2_ops = { .init_instance = hns_roce_hw_v2_init_instance, .uninit_instance = hns_roce_hw_v2_uninit_instance, }; static struct hnae3_client hns_roce_hw_v2_client = { .name = "hns_roce_hw_v2", .type = HNAE3_CLIENT_ROCE, .ops = &hns_roce_hw_v2_ops, }; static int __init hns_roce_hw_v2_init(void) { return hnae3_register_client(&hns_roce_hw_v2_client); } static void __exit hns_roce_hw_v2_exit(void) { hnae3_unregister_client(&hns_roce_hw_v2_client); } module_init(hns_roce_hw_v2_init); module_exit(hns_roce_hw_v2_exit); MODULE_LICENSE("Dual BSD/GPL"); MODULE_AUTHOR("Wei Hu "); MODULE_AUTHOR("Lijun Ou "); MODULE_AUTHOR("Shaobo Xu "); MODULE_DESCRIPTION("Hisilicon Hip08 Family RoCE Driver");