hns_roce_hw_v1.c 91.3 KB
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/*
 * Copyright (c) 2016 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 <linux/platform_device.h>
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#include <linux/acpi.h>
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#include <rdma/ib_umem.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_v1.h"

static void set_data_seg(struct hns_roce_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 void set_raddr_seg(struct hns_roce_wqe_raddr_seg *rseg, u64 remote_addr,
			  u32 rkey)
{
	rseg->raddr = cpu_to_le64(remote_addr);
	rseg->rkey  = cpu_to_le32(rkey);
	rseg->len   = 0;
}

int hns_roce_v1_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_ah *ah = to_hr_ah(ud_wr(wr)->ah);
	struct hns_roce_ud_send_wqe *ud_sq_wqe = NULL;
	struct hns_roce_wqe_ctrl_seg *ctrl = NULL;
	struct hns_roce_wqe_data_seg *dseg = NULL;
	struct hns_roce_qp *qp = to_hr_qp(ibqp);
	struct device *dev = &hr_dev->pdev->dev;
	struct hns_roce_sq_db sq_db;
	int ps_opcode = 0, i = 0;
	unsigned long flags = 0;
	void *wqe = NULL;
	u32 doorbell[2];
	int nreq = 0;
	u32 ind = 0;
	int ret = 0;

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	if (unlikely(ibqp->qp_type != IB_QPT_GSI &&
		ibqp->qp_type != IB_QPT_RC)) {
		dev_err(dev, "un-supported QP type\n");
		*bad_wr = NULL;
		return -EOPNOTSUPP;
	}
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	spin_lock_irqsave(&qp->sq.lock, flags);
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	ind = qp->sq_next_wqe;
	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;

		/* Corresponding to the RC and RD type wqe process separately */
		if (ibqp->qp_type == IB_QPT_GSI) {
			ud_sq_wqe = wqe;
			roce_set_field(ud_sq_wqe->dmac_h,
				       UD_SEND_WQE_U32_4_DMAC_0_M,
				       UD_SEND_WQE_U32_4_DMAC_0_S,
				       ah->av.mac[0]);
			roce_set_field(ud_sq_wqe->dmac_h,
				       UD_SEND_WQE_U32_4_DMAC_1_M,
				       UD_SEND_WQE_U32_4_DMAC_1_S,
				       ah->av.mac[1]);
			roce_set_field(ud_sq_wqe->dmac_h,
				       UD_SEND_WQE_U32_4_DMAC_2_M,
				       UD_SEND_WQE_U32_4_DMAC_2_S,
				       ah->av.mac[2]);
			roce_set_field(ud_sq_wqe->dmac_h,
				       UD_SEND_WQE_U32_4_DMAC_3_M,
				       UD_SEND_WQE_U32_4_DMAC_3_S,
				       ah->av.mac[3]);

			roce_set_field(ud_sq_wqe->u32_8,
				       UD_SEND_WQE_U32_8_DMAC_4_M,
				       UD_SEND_WQE_U32_8_DMAC_4_S,
				       ah->av.mac[4]);
			roce_set_field(ud_sq_wqe->u32_8,
				       UD_SEND_WQE_U32_8_DMAC_5_M,
				       UD_SEND_WQE_U32_8_DMAC_5_S,
				       ah->av.mac[5]);
			roce_set_field(ud_sq_wqe->u32_8,
				       UD_SEND_WQE_U32_8_OPERATION_TYPE_M,
				       UD_SEND_WQE_U32_8_OPERATION_TYPE_S,
				       HNS_ROCE_WQE_OPCODE_SEND);
			roce_set_field(ud_sq_wqe->u32_8,
				       UD_SEND_WQE_U32_8_NUMBER_OF_DATA_SEG_M,
				       UD_SEND_WQE_U32_8_NUMBER_OF_DATA_SEG_S,
				       2);
			roce_set_bit(ud_sq_wqe->u32_8,
				UD_SEND_WQE_U32_8_SEND_GL_ROUTING_HDR_FLAG_S,
				1);

			ud_sq_wqe->u32_8 |= (wr->send_flags & IB_SEND_SIGNALED ?
				cpu_to_le32(HNS_ROCE_WQE_CQ_NOTIFY) : 0) |
				(wr->send_flags & IB_SEND_SOLICITED ?
				cpu_to_le32(HNS_ROCE_WQE_SE) : 0) |
				((wr->opcode == IB_WR_SEND_WITH_IMM) ?
				cpu_to_le32(HNS_ROCE_WQE_IMM) : 0);

			roce_set_field(ud_sq_wqe->u32_16,
				       UD_SEND_WQE_U32_16_DEST_QP_M,
				       UD_SEND_WQE_U32_16_DEST_QP_S,
				       ud_wr(wr)->remote_qpn);
			roce_set_field(ud_sq_wqe->u32_16,
				       UD_SEND_WQE_U32_16_MAX_STATIC_RATE_M,
				       UD_SEND_WQE_U32_16_MAX_STATIC_RATE_S,
				       ah->av.stat_rate);

			roce_set_field(ud_sq_wqe->u32_36,
				       UD_SEND_WQE_U32_36_FLOW_LABEL_M,
				       UD_SEND_WQE_U32_36_FLOW_LABEL_S, 0);
			roce_set_field(ud_sq_wqe->u32_36,
				       UD_SEND_WQE_U32_36_PRIORITY_M,
				       UD_SEND_WQE_U32_36_PRIORITY_S,
				       ah->av.sl_tclass_flowlabel >>
				       HNS_ROCE_SL_SHIFT);
			roce_set_field(ud_sq_wqe->u32_36,
				       UD_SEND_WQE_U32_36_SGID_INDEX_M,
				       UD_SEND_WQE_U32_36_SGID_INDEX_S,
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				       hns_get_gid_index(hr_dev, qp->phy_port,
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							 ah->av.gid_index));

			roce_set_field(ud_sq_wqe->u32_40,
				       UD_SEND_WQE_U32_40_HOP_LIMIT_M,
				       UD_SEND_WQE_U32_40_HOP_LIMIT_S,
				       ah->av.hop_limit);
			roce_set_field(ud_sq_wqe->u32_40,
				       UD_SEND_WQE_U32_40_TRAFFIC_CLASS_M,
				       UD_SEND_WQE_U32_40_TRAFFIC_CLASS_S, 0);

			memcpy(&ud_sq_wqe->dgid[0], &ah->av.dgid[0], GID_LEN);

			ud_sq_wqe->va0_l = (u32)wr->sg_list[0].addr;
			ud_sq_wqe->va0_h = (wr->sg_list[0].addr) >> 32;
			ud_sq_wqe->l_key0 = wr->sg_list[0].lkey;

			ud_sq_wqe->va1_l = (u32)wr->sg_list[1].addr;
			ud_sq_wqe->va1_h = (wr->sg_list[1].addr) >> 32;
			ud_sq_wqe->l_key1 = wr->sg_list[1].lkey;
			ind++;
		} else if (ibqp->qp_type == IB_QPT_RC) {
			ctrl = wqe;
			memset(ctrl, 0, sizeof(struct hns_roce_wqe_ctrl_seg));
			for (i = 0; i < wr->num_sge; i++)
				ctrl->msg_length += wr->sg_list[i].length;

			ctrl->sgl_pa_h = 0;
			ctrl->flag = 0;
			ctrl->imm_data = send_ieth(wr);

			/*Ctrl field, ctrl set type: sig, solic, imm, fence */
			/* SO wait for conforming application scenarios */
			ctrl->flag |= (wr->send_flags & IB_SEND_SIGNALED ?
				      cpu_to_le32(HNS_ROCE_WQE_CQ_NOTIFY) : 0) |
				      (wr->send_flags & IB_SEND_SOLICITED ?
				      cpu_to_le32(HNS_ROCE_WQE_SE) : 0) |
				      ((wr->opcode == IB_WR_SEND_WITH_IMM ||
				      wr->opcode == IB_WR_RDMA_WRITE_WITH_IMM) ?
				      cpu_to_le32(HNS_ROCE_WQE_IMM) : 0) |
				      (wr->send_flags & IB_SEND_FENCE ?
				      (cpu_to_le32(HNS_ROCE_WQE_FENCE)) : 0);

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			wqe += sizeof(struct hns_roce_wqe_ctrl_seg);
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			switch (wr->opcode) {
			case IB_WR_RDMA_READ:
				ps_opcode = HNS_ROCE_WQE_OPCODE_RDMA_READ;
				set_raddr_seg(wqe, atomic_wr(wr)->remote_addr,
					      atomic_wr(wr)->rkey);
				break;
			case IB_WR_RDMA_WRITE:
			case IB_WR_RDMA_WRITE_WITH_IMM:
				ps_opcode = HNS_ROCE_WQE_OPCODE_RDMA_WRITE;
				set_raddr_seg(wqe, atomic_wr(wr)->remote_addr,
					      atomic_wr(wr)->rkey);
				break;
			case IB_WR_SEND:
			case IB_WR_SEND_WITH_INV:
			case IB_WR_SEND_WITH_IMM:
				ps_opcode = HNS_ROCE_WQE_OPCODE_SEND;
				break;
			case IB_WR_LOCAL_INV:
				break;
			case IB_WR_ATOMIC_CMP_AND_SWP:
			case IB_WR_ATOMIC_FETCH_AND_ADD:
			case IB_WR_LSO:
			default:
				ps_opcode = HNS_ROCE_WQE_OPCODE_MASK;
				break;
			}
			ctrl->flag |= cpu_to_le32(ps_opcode);
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			wqe += sizeof(struct hns_roce_wqe_raddr_seg);
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			dseg = wqe;
			if (wr->send_flags & IB_SEND_INLINE && wr->num_sge) {
				if (ctrl->msg_length >
					hr_dev->caps.max_sq_inline) {
					ret = -EINVAL;
					*bad_wr = wr;
					dev_err(dev, "inline len(1-%d)=%d, illegal",
						ctrl->msg_length,
						hr_dev->caps.max_sq_inline);
					goto out;
				}
				for (i = 0; i < wr->num_sge; i++) {
					memcpy(wqe, ((void *) (uintptr_t)
					       wr->sg_list[i].addr),
					       wr->sg_list[i].length);
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					wqe += wr->sg_list[i].length;
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				}
				ctrl->flag |= HNS_ROCE_WQE_INLINE;
			} else {
				/*sqe num is two */
				for (i = 0; i < wr->num_sge; i++)
					set_data_seg(dseg + i, wr->sg_list + i);

				ctrl->flag |= cpu_to_le32(wr->num_sge <<
					      HNS_ROCE_WQE_SGE_NUM_BIT);
			}
			ind++;
		}
	}

out:
	/* Set DB return */
	if (likely(nreq)) {
		qp->sq.head += nreq;
		/* Memory barrier */
		wmb();

		sq_db.u32_4 = 0;
		sq_db.u32_8 = 0;
		roce_set_field(sq_db.u32_4, SQ_DOORBELL_U32_4_SQ_HEAD_M,
			       SQ_DOORBELL_U32_4_SQ_HEAD_S,
			      (qp->sq.head & ((qp->sq.wqe_cnt << 1) - 1)));
		roce_set_field(sq_db.u32_4, SQ_DOORBELL_U32_4_PORT_M,
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			       SQ_DOORBELL_U32_4_PORT_S, qp->phy_port);
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		roce_set_field(sq_db.u32_8, SQ_DOORBELL_U32_8_QPN_M,
			       SQ_DOORBELL_U32_8_QPN_S, qp->doorbell_qpn);
		roce_set_bit(sq_db.u32_8, SQ_DOORBELL_HW_SYNC_S, 1);

		doorbell[0] = sq_db.u32_4;
		doorbell[1] = sq_db.u32_8;

		hns_roce_write64_k(doorbell, qp->sq.db_reg_l);
		qp->sq_next_wqe = ind;
	}

	spin_unlock_irqrestore(&qp->sq.lock, flags);

	return ret;
}

int hns_roce_v1_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr,
			  struct ib_recv_wr **bad_wr)
{
	int ret = 0;
	int nreq = 0;
	int ind = 0;
	int i = 0;
	u32 reg_val = 0;
	unsigned long flags = 0;
	struct hns_roce_rq_wqe_ctrl *ctrl = NULL;
	struct hns_roce_wqe_data_seg *scat = NULL;
	struct hns_roce_qp *hr_qp = to_hr_qp(ibqp);
	struct hns_roce_dev *hr_dev = to_hr_dev(ibqp->device);
	struct device *dev = &hr_dev->pdev->dev;
	struct hns_roce_rq_db rq_db;
	uint32_t doorbell[2] = {0};

	spin_lock_irqsave(&hr_qp->rq.lock, flags);
	ind = hr_qp->rq.head & (hr_qp->rq.wqe_cnt - 1);

	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;
		}

		ctrl = get_recv_wqe(hr_qp, ind);

		roce_set_field(ctrl->rwqe_byte_12,
			       RQ_WQE_CTRL_RWQE_BYTE_12_RWQE_SGE_NUM_M,
			       RQ_WQE_CTRL_RWQE_BYTE_12_RWQE_SGE_NUM_S,
			       wr->num_sge);

		scat = (struct hns_roce_wqe_data_seg *)(ctrl + 1);

		for (i = 0; i < wr->num_sge; i++)
			set_data_seg(scat + i, wr->sg_list + i);

		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();

		if (ibqp->qp_type == IB_QPT_GSI) {
			/* SW update GSI rq header */
			reg_val = roce_read(to_hr_dev(ibqp->device),
					    ROCEE_QP1C_CFG3_0_REG +
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					    QP1C_CFGN_OFFSET * hr_qp->phy_port);
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			roce_set_field(reg_val,
				       ROCEE_QP1C_CFG3_0_ROCEE_QP1C_RQ_HEAD_M,
				       ROCEE_QP1C_CFG3_0_ROCEE_QP1C_RQ_HEAD_S,
				       hr_qp->rq.head);
			roce_write(to_hr_dev(ibqp->device),
				   ROCEE_QP1C_CFG3_0_REG +
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				   QP1C_CFGN_OFFSET * hr_qp->phy_port, reg_val);
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		} else {
			rq_db.u32_4 = 0;
			rq_db.u32_8 = 0;

			roce_set_field(rq_db.u32_4, RQ_DOORBELL_U32_4_RQ_HEAD_M,
				       RQ_DOORBELL_U32_4_RQ_HEAD_S,
				       hr_qp->rq.head);
			roce_set_field(rq_db.u32_8, RQ_DOORBELL_U32_8_QPN_M,
				       RQ_DOORBELL_U32_8_QPN_S, hr_qp->qpn);
			roce_set_field(rq_db.u32_8, RQ_DOORBELL_U32_8_CMD_M,
				       RQ_DOORBELL_U32_8_CMD_S, 1);
			roce_set_bit(rq_db.u32_8, RQ_DOORBELL_U32_8_HW_SYNC_S,
				     1);

			doorbell[0] = rq_db.u32_4;
			doorbell[1] = rq_db.u32_8;

			hns_roce_write64_k(doorbell, hr_qp->rq.db_reg_l);
		}
	}
	spin_unlock_irqrestore(&hr_qp->rq.lock, flags);

	return ret;
}

static void hns_roce_set_db_event_mode(struct hns_roce_dev *hr_dev,
				       int sdb_mode, int odb_mode)
{
	u32 val;

	val = roce_read(hr_dev, ROCEE_GLB_CFG_REG);
	roce_set_bit(val, ROCEE_GLB_CFG_ROCEE_DB_SQ_MODE_S, sdb_mode);
	roce_set_bit(val, ROCEE_GLB_CFG_ROCEE_DB_OTH_MODE_S, odb_mode);
	roce_write(hr_dev, ROCEE_GLB_CFG_REG, val);
}

static void hns_roce_set_db_ext_mode(struct hns_roce_dev *hr_dev, u32 sdb_mode,
				     u32 odb_mode)
{
	u32 val;

	/* Configure SDB/ODB extend mode */
	val = roce_read(hr_dev, ROCEE_GLB_CFG_REG);
	roce_set_bit(val, ROCEE_GLB_CFG_SQ_EXT_DB_MODE_S, sdb_mode);
	roce_set_bit(val, ROCEE_GLB_CFG_OTH_EXT_DB_MODE_S, odb_mode);
	roce_write(hr_dev, ROCEE_GLB_CFG_REG, val);
}

static void hns_roce_set_sdb(struct hns_roce_dev *hr_dev, u32 sdb_alept,
			     u32 sdb_alful)
{
	u32 val;

	/* Configure SDB */
	val = roce_read(hr_dev, ROCEE_DB_SQ_WL_REG);
	roce_set_field(val, ROCEE_DB_SQ_WL_ROCEE_DB_SQ_WL_M,
		       ROCEE_DB_SQ_WL_ROCEE_DB_SQ_WL_S, sdb_alful);
	roce_set_field(val, ROCEE_DB_SQ_WL_ROCEE_DB_SQ_WL_EMPTY_M,
		       ROCEE_DB_SQ_WL_ROCEE_DB_SQ_WL_EMPTY_S, sdb_alept);
	roce_write(hr_dev, ROCEE_DB_SQ_WL_REG, val);
}

static void hns_roce_set_odb(struct hns_roce_dev *hr_dev, u32 odb_alept,
			     u32 odb_alful)
{
	u32 val;

	/* Configure ODB */
	val = roce_read(hr_dev, ROCEE_DB_OTHERS_WL_REG);
	roce_set_field(val, ROCEE_DB_OTHERS_WL_ROCEE_DB_OTH_WL_M,
		       ROCEE_DB_OTHERS_WL_ROCEE_DB_OTH_WL_S, odb_alful);
	roce_set_field(val, ROCEE_DB_OTHERS_WL_ROCEE_DB_OTH_WL_EMPTY_M,
		       ROCEE_DB_OTHERS_WL_ROCEE_DB_OTH_WL_EMPTY_S, odb_alept);
	roce_write(hr_dev, ROCEE_DB_OTHERS_WL_REG, val);
}

static void hns_roce_set_sdb_ext(struct hns_roce_dev *hr_dev, u32 ext_sdb_alept,
				 u32 ext_sdb_alful)
{
	struct device *dev = &hr_dev->pdev->dev;
	struct hns_roce_v1_priv *priv;
	struct hns_roce_db_table *db;
	dma_addr_t sdb_dma_addr;
	u32 val;

	priv = (struct hns_roce_v1_priv *)hr_dev->hw->priv;
	db = &priv->db_table;

	/* Configure extend SDB threshold */
	roce_write(hr_dev, ROCEE_EXT_DB_SQ_WL_EMPTY_REG, ext_sdb_alept);
	roce_write(hr_dev, ROCEE_EXT_DB_SQ_WL_REG, ext_sdb_alful);

	/* Configure extend SDB base addr */
	sdb_dma_addr = db->ext_db->sdb_buf_list->map;
	roce_write(hr_dev, ROCEE_EXT_DB_SQ_REG, (u32)(sdb_dma_addr >> 12));

	/* Configure extend SDB depth */
	val = roce_read(hr_dev, ROCEE_EXT_DB_SQ_H_REG);
	roce_set_field(val, ROCEE_EXT_DB_SQ_H_EXT_DB_SQ_SHIFT_M,
		       ROCEE_EXT_DB_SQ_H_EXT_DB_SQ_SHIFT_S,
		       db->ext_db->esdb_dep);
	/*
	 * 44 = 32 + 12, When evaluating addr to hardware, shift 12 because of
	 * using 4K page, and shift more 32 because of
	 * caculating the high 32 bit value evaluated to hardware.
	 */
	roce_set_field(val, ROCEE_EXT_DB_SQ_H_EXT_DB_SQ_BA_H_M,
		       ROCEE_EXT_DB_SQ_H_EXT_DB_SQ_BA_H_S, sdb_dma_addr >> 44);
	roce_write(hr_dev, ROCEE_EXT_DB_SQ_H_REG, val);

	dev_dbg(dev, "ext SDB depth: 0x%x\n", db->ext_db->esdb_dep);
	dev_dbg(dev, "ext SDB threshold: epmty: 0x%x, ful: 0x%x\n",
		ext_sdb_alept, ext_sdb_alful);
}

static void hns_roce_set_odb_ext(struct hns_roce_dev *hr_dev, u32 ext_odb_alept,
				 u32 ext_odb_alful)
{
	struct device *dev = &hr_dev->pdev->dev;
	struct hns_roce_v1_priv *priv;
	struct hns_roce_db_table *db;
	dma_addr_t odb_dma_addr;
	u32 val;

	priv = (struct hns_roce_v1_priv *)hr_dev->hw->priv;
	db = &priv->db_table;

	/* Configure extend ODB threshold */
	roce_write(hr_dev, ROCEE_EXT_DB_OTHERS_WL_EMPTY_REG, ext_odb_alept);
	roce_write(hr_dev, ROCEE_EXT_DB_OTHERS_WL_REG, ext_odb_alful);

	/* Configure extend ODB base addr */
	odb_dma_addr = db->ext_db->odb_buf_list->map;
	roce_write(hr_dev, ROCEE_EXT_DB_OTH_REG, (u32)(odb_dma_addr >> 12));

	/* Configure extend ODB depth */
	val = roce_read(hr_dev, ROCEE_EXT_DB_OTH_H_REG);
	roce_set_field(val, ROCEE_EXT_DB_OTH_H_EXT_DB_OTH_SHIFT_M,
		       ROCEE_EXT_DB_OTH_H_EXT_DB_OTH_SHIFT_S,
		       db->ext_db->eodb_dep);
	roce_set_field(val, ROCEE_EXT_DB_SQ_H_EXT_DB_OTH_BA_H_M,
		       ROCEE_EXT_DB_SQ_H_EXT_DB_OTH_BA_H_S,
		       db->ext_db->eodb_dep);
	roce_write(hr_dev, ROCEE_EXT_DB_OTH_H_REG, val);

	dev_dbg(dev, "ext ODB depth: 0x%x\n", db->ext_db->eodb_dep);
	dev_dbg(dev, "ext ODB threshold: empty: 0x%x, ful: 0x%x\n",
		ext_odb_alept, ext_odb_alful);
}

static int hns_roce_db_ext_init(struct hns_roce_dev *hr_dev, u32 sdb_ext_mod,
				u32 odb_ext_mod)
{
	struct device *dev = &hr_dev->pdev->dev;
	struct hns_roce_v1_priv *priv;
	struct hns_roce_db_table *db;
	dma_addr_t sdb_dma_addr;
	dma_addr_t odb_dma_addr;
	int ret = 0;

	priv = (struct hns_roce_v1_priv *)hr_dev->hw->priv;
	db = &priv->db_table;

	db->ext_db = kmalloc(sizeof(*db->ext_db), GFP_KERNEL);
	if (!db->ext_db)
		return -ENOMEM;

	if (sdb_ext_mod) {
		db->ext_db->sdb_buf_list = kmalloc(
				sizeof(*db->ext_db->sdb_buf_list), GFP_KERNEL);
		if (!db->ext_db->sdb_buf_list) {
			ret = -ENOMEM;
			goto ext_sdb_buf_fail_out;
		}

		db->ext_db->sdb_buf_list->buf = dma_alloc_coherent(dev,
						     HNS_ROCE_V1_EXT_SDB_SIZE,
						     &sdb_dma_addr, GFP_KERNEL);
		if (!db->ext_db->sdb_buf_list->buf) {
			ret = -ENOMEM;
			goto alloc_sq_db_buf_fail;
		}
		db->ext_db->sdb_buf_list->map = sdb_dma_addr;

		db->ext_db->esdb_dep = ilog2(HNS_ROCE_V1_EXT_SDB_DEPTH);
		hns_roce_set_sdb_ext(hr_dev, HNS_ROCE_V1_EXT_SDB_ALEPT,
				     HNS_ROCE_V1_EXT_SDB_ALFUL);
	} else
		hns_roce_set_sdb(hr_dev, HNS_ROCE_V1_SDB_ALEPT,
				 HNS_ROCE_V1_SDB_ALFUL);

	if (odb_ext_mod) {
		db->ext_db->odb_buf_list = kmalloc(
				sizeof(*db->ext_db->odb_buf_list), GFP_KERNEL);
		if (!db->ext_db->odb_buf_list) {
			ret = -ENOMEM;
			goto ext_odb_buf_fail_out;
		}

		db->ext_db->odb_buf_list->buf = dma_alloc_coherent(dev,
						     HNS_ROCE_V1_EXT_ODB_SIZE,
						     &odb_dma_addr, GFP_KERNEL);
		if (!db->ext_db->odb_buf_list->buf) {
			ret = -ENOMEM;
			goto alloc_otr_db_buf_fail;
		}
		db->ext_db->odb_buf_list->map = odb_dma_addr;

		db->ext_db->eodb_dep = ilog2(HNS_ROCE_V1_EXT_ODB_DEPTH);
		hns_roce_set_odb_ext(hr_dev, HNS_ROCE_V1_EXT_ODB_ALEPT,
				     HNS_ROCE_V1_EXT_ODB_ALFUL);
	} else
		hns_roce_set_odb(hr_dev, HNS_ROCE_V1_ODB_ALEPT,
				 HNS_ROCE_V1_ODB_ALFUL);

	hns_roce_set_db_ext_mode(hr_dev, sdb_ext_mod, odb_ext_mod);

	return 0;

alloc_otr_db_buf_fail:
	kfree(db->ext_db->odb_buf_list);

ext_odb_buf_fail_out:
	if (sdb_ext_mod) {
		dma_free_coherent(dev, HNS_ROCE_V1_EXT_SDB_SIZE,
				  db->ext_db->sdb_buf_list->buf,
				  db->ext_db->sdb_buf_list->map);
	}

alloc_sq_db_buf_fail:
	if (sdb_ext_mod)
		kfree(db->ext_db->sdb_buf_list);

ext_sdb_buf_fail_out:
	kfree(db->ext_db);
	return ret;
}

static int hns_roce_db_init(struct hns_roce_dev *hr_dev)
{
	struct device *dev = &hr_dev->pdev->dev;
	struct hns_roce_v1_priv *priv;
	struct hns_roce_db_table *db;
	u32 sdb_ext_mod;
	u32 odb_ext_mod;
	u32 sdb_evt_mod;
	u32 odb_evt_mod;
	int ret = 0;

	priv = (struct hns_roce_v1_priv *)hr_dev->hw->priv;
	db = &priv->db_table;

	memset(db, 0, sizeof(*db));

	/* Default DB mode */
	sdb_ext_mod = HNS_ROCE_SDB_EXTEND_MODE;
	odb_ext_mod = HNS_ROCE_ODB_EXTEND_MODE;
	sdb_evt_mod = HNS_ROCE_SDB_NORMAL_MODE;
	odb_evt_mod = HNS_ROCE_ODB_POLL_MODE;

	db->sdb_ext_mod = sdb_ext_mod;
	db->odb_ext_mod = odb_ext_mod;

	/* Init extend DB */
	ret = hns_roce_db_ext_init(hr_dev, sdb_ext_mod, odb_ext_mod);
	if (ret) {
		dev_err(dev, "Failed in extend DB configuration.\n");
		return ret;
	}

	hns_roce_set_db_event_mode(hr_dev, sdb_evt_mod, odb_evt_mod);

	return 0;
}

static void hns_roce_db_free(struct hns_roce_dev *hr_dev)
{
	struct device *dev = &hr_dev->pdev->dev;
	struct hns_roce_v1_priv *priv;
	struct hns_roce_db_table *db;

	priv = (struct hns_roce_v1_priv *)hr_dev->hw->priv;
	db = &priv->db_table;

	if (db->sdb_ext_mod) {
		dma_free_coherent(dev, HNS_ROCE_V1_EXT_SDB_SIZE,
				  db->ext_db->sdb_buf_list->buf,
				  db->ext_db->sdb_buf_list->map);
		kfree(db->ext_db->sdb_buf_list);
	}

	if (db->odb_ext_mod) {
		dma_free_coherent(dev, HNS_ROCE_V1_EXT_ODB_SIZE,
				  db->ext_db->odb_buf_list->buf,
				  db->ext_db->odb_buf_list->map);
		kfree(db->ext_db->odb_buf_list);
	}

	kfree(db->ext_db);
}

static int hns_roce_raq_init(struct hns_roce_dev *hr_dev)
{
	int ret;
	int raq_shift = 0;
	dma_addr_t addr;
	u32 val;
	struct hns_roce_v1_priv *priv;
	struct hns_roce_raq_table *raq;
	struct device *dev = &hr_dev->pdev->dev;

	priv = (struct hns_roce_v1_priv *)hr_dev->hw->priv;
	raq = &priv->raq_table;

	raq->e_raq_buf = kzalloc(sizeof(*(raq->e_raq_buf)), GFP_KERNEL);
	if (!raq->e_raq_buf)
		return -ENOMEM;

	raq->e_raq_buf->buf = dma_alloc_coherent(dev, HNS_ROCE_V1_RAQ_SIZE,
						 &addr, GFP_KERNEL);
	if (!raq->e_raq_buf->buf) {
		ret = -ENOMEM;
		goto err_dma_alloc_raq;
	}
	raq->e_raq_buf->map = addr;

	/* Configure raq extended address. 48bit 4K align*/
	roce_write(hr_dev, ROCEE_EXT_RAQ_REG, raq->e_raq_buf->map >> 12);

	/* Configure raq_shift */
	raq_shift = ilog2(HNS_ROCE_V1_RAQ_SIZE / HNS_ROCE_V1_RAQ_ENTRY);
	val = roce_read(hr_dev, ROCEE_EXT_RAQ_H_REG);
	roce_set_field(val, ROCEE_EXT_RAQ_H_EXT_RAQ_SHIFT_M,
		       ROCEE_EXT_RAQ_H_EXT_RAQ_SHIFT_S, raq_shift);
	/*
	 * 44 = 32 + 12, When evaluating addr to hardware, shift 12 because of
	 * using 4K page, and shift more 32 because of
	 * caculating the high 32 bit value evaluated to hardware.
	 */
	roce_set_field(val, ROCEE_EXT_RAQ_H_EXT_RAQ_BA_H_M,
		       ROCEE_EXT_RAQ_H_EXT_RAQ_BA_H_S,
		       raq->e_raq_buf->map >> 44);
	roce_write(hr_dev, ROCEE_EXT_RAQ_H_REG, val);
	dev_dbg(dev, "Configure raq_shift 0x%x.\n", val);

	/* Configure raq threshold */
	val = roce_read(hr_dev, ROCEE_RAQ_WL_REG);
	roce_set_field(val, ROCEE_RAQ_WL_ROCEE_RAQ_WL_M,
		       ROCEE_RAQ_WL_ROCEE_RAQ_WL_S,
		       HNS_ROCE_V1_EXT_RAQ_WF);
	roce_write(hr_dev, ROCEE_RAQ_WL_REG, val);
	dev_dbg(dev, "Configure raq_wl 0x%x.\n", val);

	/* Enable extend raq */
	val = roce_read(hr_dev, ROCEE_WRMS_POL_TIME_INTERVAL_REG);
	roce_set_field(val,
		       ROCEE_WRMS_POL_TIME_INTERVAL_WRMS_POL_TIME_INTERVAL_M,
		       ROCEE_WRMS_POL_TIME_INTERVAL_WRMS_POL_TIME_INTERVAL_S,
		       POL_TIME_INTERVAL_VAL);
	roce_set_bit(val, ROCEE_WRMS_POL_TIME_INTERVAL_WRMS_EXT_RAQ_MODE, 1);
	roce_set_field(val,
		       ROCEE_WRMS_POL_TIME_INTERVAL_WRMS_RAQ_TIMEOUT_CHK_CFG_M,
		       ROCEE_WRMS_POL_TIME_INTERVAL_WRMS_RAQ_TIMEOUT_CHK_CFG_S,
		       2);
	roce_set_bit(val,
		     ROCEE_WRMS_POL_TIME_INTERVAL_WRMS_RAQ_TIMEOUT_CHK_EN_S, 1);
	roce_write(hr_dev, ROCEE_WRMS_POL_TIME_INTERVAL_REG, val);
	dev_dbg(dev, "Configure WrmsPolTimeInterval 0x%x.\n", val);

	/* Enable raq drop */
	val = roce_read(hr_dev, ROCEE_GLB_CFG_REG);
	roce_set_bit(val, ROCEE_GLB_CFG_TRP_RAQ_DROP_EN_S, 1);
	roce_write(hr_dev, ROCEE_GLB_CFG_REG, val);
	dev_dbg(dev, "Configure GlbCfg = 0x%x.\n", val);

	return 0;

err_dma_alloc_raq:
	kfree(raq->e_raq_buf);
	return ret;
}

static void hns_roce_raq_free(struct hns_roce_dev *hr_dev)
{
	struct device *dev = &hr_dev->pdev->dev;
	struct hns_roce_v1_priv *priv;
	struct hns_roce_raq_table *raq;

	priv = (struct hns_roce_v1_priv *)hr_dev->hw->priv;
	raq = &priv->raq_table;

	dma_free_coherent(dev, HNS_ROCE_V1_RAQ_SIZE, raq->e_raq_buf->buf,
			  raq->e_raq_buf->map);
	kfree(raq->e_raq_buf);
}

static void hns_roce_port_enable(struct hns_roce_dev *hr_dev, int enable_flag)
{
	u32 val;

	if (enable_flag) {
		val = roce_read(hr_dev, ROCEE_GLB_CFG_REG);
		 /* Open all ports */
		roce_set_field(val, ROCEE_GLB_CFG_ROCEE_PORT_ST_M,
			       ROCEE_GLB_CFG_ROCEE_PORT_ST_S,
			       ALL_PORT_VAL_OPEN);
		roce_write(hr_dev, ROCEE_GLB_CFG_REG, val);
	} else {
		val = roce_read(hr_dev, ROCEE_GLB_CFG_REG);
		/* Close all ports */
		roce_set_field(val, ROCEE_GLB_CFG_ROCEE_PORT_ST_M,
			       ROCEE_GLB_CFG_ROCEE_PORT_ST_S, 0x0);
		roce_write(hr_dev, ROCEE_GLB_CFG_REG, val);
	}
}

W
Wei Hu (Xavier) 已提交
792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851
static int hns_roce_bt_init(struct hns_roce_dev *hr_dev)
{
	struct device *dev = &hr_dev->pdev->dev;
	struct hns_roce_v1_priv *priv;
	int ret;

	priv = (struct hns_roce_v1_priv *)hr_dev->hw->priv;

	priv->bt_table.qpc_buf.buf = dma_alloc_coherent(dev,
		HNS_ROCE_BT_RSV_BUF_SIZE, &priv->bt_table.qpc_buf.map,
		GFP_KERNEL);
	if (!priv->bt_table.qpc_buf.buf)
		return -ENOMEM;

	priv->bt_table.mtpt_buf.buf = dma_alloc_coherent(dev,
		HNS_ROCE_BT_RSV_BUF_SIZE, &priv->bt_table.mtpt_buf.map,
		GFP_KERNEL);
	if (!priv->bt_table.mtpt_buf.buf) {
		ret = -ENOMEM;
		goto err_failed_alloc_mtpt_buf;
	}

	priv->bt_table.cqc_buf.buf = dma_alloc_coherent(dev,
		HNS_ROCE_BT_RSV_BUF_SIZE, &priv->bt_table.cqc_buf.map,
		GFP_KERNEL);
	if (!priv->bt_table.cqc_buf.buf) {
		ret = -ENOMEM;
		goto err_failed_alloc_cqc_buf;
	}

	return 0;

err_failed_alloc_cqc_buf:
	dma_free_coherent(dev, HNS_ROCE_BT_RSV_BUF_SIZE,
		priv->bt_table.mtpt_buf.buf, priv->bt_table.mtpt_buf.map);

err_failed_alloc_mtpt_buf:
	dma_free_coherent(dev, HNS_ROCE_BT_RSV_BUF_SIZE,
		priv->bt_table.qpc_buf.buf, priv->bt_table.qpc_buf.map);

	return ret;
}

static void hns_roce_bt_free(struct hns_roce_dev *hr_dev)
{
	struct device *dev = &hr_dev->pdev->dev;
	struct hns_roce_v1_priv *priv;

	priv = (struct hns_roce_v1_priv *)hr_dev->hw->priv;

	dma_free_coherent(dev, HNS_ROCE_BT_RSV_BUF_SIZE,
		priv->bt_table.cqc_buf.buf, priv->bt_table.cqc_buf.map);

	dma_free_coherent(dev, HNS_ROCE_BT_RSV_BUF_SIZE,
		priv->bt_table.mtpt_buf.buf, priv->bt_table.mtpt_buf.map);

	dma_free_coherent(dev, HNS_ROCE_BT_RSV_BUF_SIZE,
		priv->bt_table.qpc_buf.buf, priv->bt_table.qpc_buf.map);
}

852 853 854 855 856 857
/**
 * hns_roce_v1_reset - reset RoCE
 * @hr_dev: RoCE device struct pointer
 * @enable: true -- drop reset, false -- reset
 * return 0 - success , negative --fail
 */
858
int hns_roce_v1_reset(struct hns_roce_dev *hr_dev, bool dereset)
859 860 861 862
{
	struct device_node *dsaf_node;
	struct device *dev = &hr_dev->pdev->dev;
	struct device_node *np = dev->of_node;
863
	struct fwnode_handle *fwnode;
864 865
	int ret;

866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886
	/* check if this is DT/ACPI case */
	if (dev_of_node(dev)) {
		dsaf_node = of_parse_phandle(np, "dsaf-handle", 0);
		if (!dsaf_node) {
			dev_err(dev, "could not find dsaf-handle\n");
			return -EINVAL;
		}
		fwnode = &dsaf_node->fwnode;
	} else if (is_acpi_device_node(dev->fwnode)) {
		struct acpi_reference_args args;

		ret = acpi_node_get_property_reference(dev->fwnode,
						       "dsaf-handle", 0, &args);
		if (ret) {
			dev_err(dev, "could not find dsaf-handle\n");
			return ret;
		}
		fwnode = acpi_fwnode_handle(args.adev);
	} else {
		dev_err(dev, "cannot read data from DT or ACPI\n");
		return -ENXIO;
887 888
	}

889
	ret = hns_dsaf_roce_reset(fwnode, false);
890 891 892
	if (ret)
		return ret;

893
	if (dereset) {
894
		msleep(SLEEP_TIME_INTERVAL);
895
		ret = hns_dsaf_roce_reset(fwnode, true);
896 897
	}

898
	return ret;
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}

void hns_roce_v1_profile(struct hns_roce_dev *hr_dev)
{
	int i = 0;
	struct hns_roce_caps *caps = &hr_dev->caps;

	hr_dev->vendor_id = le32_to_cpu(roce_read(hr_dev, ROCEE_VENDOR_ID_REG));
	hr_dev->vendor_part_id = le32_to_cpu(roce_read(hr_dev,
					     ROCEE_VENDOR_PART_ID_REG));
	hr_dev->hw_rev = le32_to_cpu(roce_read(hr_dev, ROCEE_HW_VERSION_REG));

	hr_dev->sys_image_guid = le32_to_cpu(roce_read(hr_dev,
					     ROCEE_SYS_IMAGE_GUID_L_REG)) |
				((u64)le32_to_cpu(roce_read(hr_dev,
					    ROCEE_SYS_IMAGE_GUID_H_REG)) << 32);

	caps->num_qps		= HNS_ROCE_V1_MAX_QP_NUM;
	caps->max_wqes		= HNS_ROCE_V1_MAX_WQE_NUM;
	caps->num_cqs		= HNS_ROCE_V1_MAX_CQ_NUM;
	caps->max_cqes		= HNS_ROCE_V1_MAX_CQE_NUM;
	caps->max_sq_sg		= HNS_ROCE_V1_SG_NUM;
	caps->max_rq_sg		= HNS_ROCE_V1_SG_NUM;
	caps->max_sq_inline	= HNS_ROCE_V1_INLINE_SIZE;
	caps->num_uars		= HNS_ROCE_V1_UAR_NUM;
	caps->phy_num_uars	= HNS_ROCE_V1_PHY_UAR_NUM;
	caps->num_aeq_vectors	= HNS_ROCE_AEQE_VEC_NUM;
	caps->num_comp_vectors	= HNS_ROCE_COMP_VEC_NUM;
	caps->num_other_vectors	= HNS_ROCE_AEQE_OF_VEC_NUM;
	caps->num_mtpts		= HNS_ROCE_V1_MAX_MTPT_NUM;
	caps->num_mtt_segs	= HNS_ROCE_V1_MAX_MTT_SEGS;
	caps->num_pds		= HNS_ROCE_V1_MAX_PD_NUM;
	caps->max_qp_init_rdma	= HNS_ROCE_V1_MAX_QP_INIT_RDMA;
	caps->max_qp_dest_rdma	= HNS_ROCE_V1_MAX_QP_DEST_RDMA;
	caps->max_sq_desc_sz	= HNS_ROCE_V1_MAX_SQ_DESC_SZ;
	caps->max_rq_desc_sz	= HNS_ROCE_V1_MAX_RQ_DESC_SZ;
	caps->qpc_entry_sz	= HNS_ROCE_V1_QPC_ENTRY_SIZE;
	caps->irrl_entry_sz	= HNS_ROCE_V1_IRRL_ENTRY_SIZE;
	caps->cqc_entry_sz	= HNS_ROCE_V1_CQC_ENTRY_SIZE;
	caps->mtpt_entry_sz	= HNS_ROCE_V1_MTPT_ENTRY_SIZE;
	caps->mtt_entry_sz	= HNS_ROCE_V1_MTT_ENTRY_SIZE;
	caps->cq_entry_sz	= HNS_ROCE_V1_CQE_ENTRY_SIZE;
	caps->page_size_cap	= HNS_ROCE_V1_PAGE_SIZE_SUPPORT;
	caps->reserved_lkey	= 0;
	caps->reserved_pds	= 0;
	caps->reserved_mrws	= 1;
	caps->reserved_uars	= 0;
	caps->reserved_cqs	= 0;

	for (i = 0; i < caps->num_ports; i++)
		caps->pkey_table_len[i] = 1;

	for (i = 0; i < caps->num_ports; i++) {
		/* Six ports shared 16 GID in v1 engine */
		if (i >= (HNS_ROCE_V1_GID_NUM % caps->num_ports))
			caps->gid_table_len[i] = HNS_ROCE_V1_GID_NUM /
						 caps->num_ports;
		else
			caps->gid_table_len[i] = HNS_ROCE_V1_GID_NUM /
						 caps->num_ports + 1;
	}

	for (i = 0; i < caps->num_comp_vectors; i++)
		caps->ceqe_depth[i] = HNS_ROCE_V1_NUM_COMP_EQE;

	caps->aeqe_depth = HNS_ROCE_V1_NUM_ASYNC_EQE;
	caps->local_ca_ack_delay = le32_to_cpu(roce_read(hr_dev,
							 ROCEE_ACK_DELAY_REG));
	caps->max_mtu = IB_MTU_2048;
}

int hns_roce_v1_init(struct hns_roce_dev *hr_dev)
{
	int ret;
	u32 val;
	struct device *dev = &hr_dev->pdev->dev;

	/* DMAE user config */
	val = roce_read(hr_dev, ROCEE_DMAE_USER_CFG1_REG);
	roce_set_field(val, ROCEE_DMAE_USER_CFG1_ROCEE_CACHE_TB_CFG_M,
		       ROCEE_DMAE_USER_CFG1_ROCEE_CACHE_TB_CFG_S, 0xf);
	roce_set_field(val, ROCEE_DMAE_USER_CFG1_ROCEE_STREAM_ID_TB_CFG_M,
		       ROCEE_DMAE_USER_CFG1_ROCEE_STREAM_ID_TB_CFG_S,
		       1 << PAGES_SHIFT_16);
	roce_write(hr_dev, ROCEE_DMAE_USER_CFG1_REG, val);

	val = roce_read(hr_dev, ROCEE_DMAE_USER_CFG2_REG);
	roce_set_field(val, ROCEE_DMAE_USER_CFG2_ROCEE_CACHE_PKT_CFG_M,
		       ROCEE_DMAE_USER_CFG2_ROCEE_CACHE_PKT_CFG_S, 0xf);
	roce_set_field(val, ROCEE_DMAE_USER_CFG2_ROCEE_STREAM_ID_PKT_CFG_M,
		       ROCEE_DMAE_USER_CFG2_ROCEE_STREAM_ID_PKT_CFG_S,
		       1 << PAGES_SHIFT_16);

	ret = hns_roce_db_init(hr_dev);
	if (ret) {
		dev_err(dev, "doorbell init failed!\n");
		return ret;
	}

	ret = hns_roce_raq_init(hr_dev);
	if (ret) {
		dev_err(dev, "raq init failed!\n");
		goto error_failed_raq_init;
	}

	hns_roce_port_enable(hr_dev, HNS_ROCE_PORT_UP);

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	ret = hns_roce_bt_init(hr_dev);
	if (ret) {
		dev_err(dev, "bt init failed!\n");
		goto error_failed_bt_init;
	}

1012 1013
	return 0;

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error_failed_bt_init:
	hns_roce_port_enable(hr_dev, HNS_ROCE_PORT_DOWN);
	hns_roce_raq_free(hr_dev);

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error_failed_raq_init:
	hns_roce_db_free(hr_dev);
	return ret;
}

void hns_roce_v1_exit(struct hns_roce_dev *hr_dev)
{
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	hns_roce_bt_free(hr_dev);
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	hns_roce_port_enable(hr_dev, HNS_ROCE_PORT_DOWN);
	hns_roce_raq_free(hr_dev);
	hns_roce_db_free(hr_dev);
}

void hns_roce_v1_set_gid(struct hns_roce_dev *hr_dev, u8 port, int gid_index,
			 union ib_gid *gid)
{
	u32 *p = NULL;
	u8 gid_idx = 0;

	gid_idx = hns_get_gid_index(hr_dev, port, gid_index);

	p = (u32 *)&gid->raw[0];
	roce_raw_write(*p, hr_dev->reg_base + ROCEE_PORT_GID_L_0_REG +
		       (HNS_ROCE_V1_GID_NUM * gid_idx));

	p = (u32 *)&gid->raw[4];
	roce_raw_write(*p, hr_dev->reg_base + ROCEE_PORT_GID_ML_0_REG +
		       (HNS_ROCE_V1_GID_NUM * gid_idx));

	p = (u32 *)&gid->raw[8];
	roce_raw_write(*p, hr_dev->reg_base + ROCEE_PORT_GID_MH_0_REG +
		       (HNS_ROCE_V1_GID_NUM * gid_idx));

	p = (u32 *)&gid->raw[0xc];
	roce_raw_write(*p, hr_dev->reg_base + ROCEE_PORT_GID_H_0_REG +
		       (HNS_ROCE_V1_GID_NUM * gid_idx));
}

void hns_roce_v1_set_mac(struct hns_roce_dev *hr_dev, u8 phy_port, u8 *addr)
{
	u32 reg_smac_l;
	u16 reg_smac_h;
	u16 *p_h;
	u32 *p;
	u32 val;

	p = (u32 *)(&addr[0]);
	reg_smac_l = *p;
	roce_raw_write(reg_smac_l, hr_dev->reg_base + ROCEE_SMAC_L_0_REG +
		       PHY_PORT_OFFSET * phy_port);

	val = roce_read(hr_dev,
			ROCEE_SMAC_H_0_REG + phy_port * PHY_PORT_OFFSET);
	p_h = (u16 *)(&addr[4]);
	reg_smac_h  = *p_h;
	roce_set_field(val, ROCEE_SMAC_H_ROCEE_SMAC_H_M,
		       ROCEE_SMAC_H_ROCEE_SMAC_H_S, reg_smac_h);
	roce_write(hr_dev, ROCEE_SMAC_H_0_REG + phy_port * PHY_PORT_OFFSET,
		   val);
}

void hns_roce_v1_set_mtu(struct hns_roce_dev *hr_dev, u8 phy_port,
			 enum ib_mtu mtu)
{
	u32 val;

	val = roce_read(hr_dev,
			ROCEE_SMAC_H_0_REG + phy_port * PHY_PORT_OFFSET);
	roce_set_field(val, ROCEE_SMAC_H_ROCEE_PORT_MTU_M,
		       ROCEE_SMAC_H_ROCEE_PORT_MTU_S, mtu);
	roce_write(hr_dev, ROCEE_SMAC_H_0_REG + phy_port * PHY_PORT_OFFSET,
		   val);
}

int hns_roce_v1_write_mtpt(void *mb_buf, struct hns_roce_mr *mr,
			   unsigned long mtpt_idx)
{
	struct hns_roce_v1_mpt_entry *mpt_entry;
	struct scatterlist *sg;
	u64 *pages;
	int entry;
	int i;

	/* MPT filled into mailbox buf */
	mpt_entry = (struct hns_roce_v1_mpt_entry *)mb_buf;
	memset(mpt_entry, 0, sizeof(*mpt_entry));

	roce_set_field(mpt_entry->mpt_byte_4, MPT_BYTE_4_KEY_STATE_M,
		       MPT_BYTE_4_KEY_STATE_S, KEY_VALID);
	roce_set_field(mpt_entry->mpt_byte_4, MPT_BYTE_4_KEY_M,
		       MPT_BYTE_4_KEY_S, mr->key);
	roce_set_field(mpt_entry->mpt_byte_4, MPT_BYTE_4_PAGE_SIZE_M,
		       MPT_BYTE_4_PAGE_SIZE_S, MR_SIZE_4K);
	roce_set_bit(mpt_entry->mpt_byte_4, MPT_BYTE_4_MW_TYPE_S, 0);
	roce_set_bit(mpt_entry->mpt_byte_4, MPT_BYTE_4_MW_BIND_ENABLE_S,
		     (mr->access & IB_ACCESS_MW_BIND ? 1 : 0));
	roce_set_bit(mpt_entry->mpt_byte_4, MPT_BYTE_4_OWN_S, 0);
	roce_set_field(mpt_entry->mpt_byte_4, MPT_BYTE_4_MEMORY_LOCATION_TYPE_M,
		       MPT_BYTE_4_MEMORY_LOCATION_TYPE_S, mr->type);
	roce_set_bit(mpt_entry->mpt_byte_4, MPT_BYTE_4_REMOTE_ATOMIC_S, 0);
	roce_set_bit(mpt_entry->mpt_byte_4, MPT_BYTE_4_LOCAL_WRITE_S,
		     (mr->access & IB_ACCESS_LOCAL_WRITE ? 1 : 0));
	roce_set_bit(mpt_entry->mpt_byte_4, MPT_BYTE_4_REMOTE_WRITE_S,
		     (mr->access & IB_ACCESS_REMOTE_WRITE ? 1 : 0));
	roce_set_bit(mpt_entry->mpt_byte_4, MPT_BYTE_4_REMOTE_READ_S,
		     (mr->access & IB_ACCESS_REMOTE_READ ? 1 : 0));
	roce_set_bit(mpt_entry->mpt_byte_4, MPT_BYTE_4_REMOTE_INVAL_ENABLE_S,
		     0);
	roce_set_bit(mpt_entry->mpt_byte_4, MPT_BYTE_4_ADDRESS_TYPE_S, 0);

	roce_set_field(mpt_entry->mpt_byte_12, MPT_BYTE_12_PBL_ADDR_H_M,
		       MPT_BYTE_12_PBL_ADDR_H_S, 0);
	roce_set_field(mpt_entry->mpt_byte_12, MPT_BYTE_12_MW_BIND_COUNTER_M,
		       MPT_BYTE_12_MW_BIND_COUNTER_S, 0);

	mpt_entry->virt_addr_l = (u32)mr->iova;
	mpt_entry->virt_addr_h = (u32)(mr->iova >> 32);
	mpt_entry->length = (u32)mr->size;

	roce_set_field(mpt_entry->mpt_byte_28, MPT_BYTE_28_PD_M,
		       MPT_BYTE_28_PD_S, mr->pd);
	roce_set_field(mpt_entry->mpt_byte_28, MPT_BYTE_28_L_KEY_IDX_L_M,
		       MPT_BYTE_28_L_KEY_IDX_L_S, mtpt_idx);
	roce_set_field(mpt_entry->mpt_byte_64, MPT_BYTE_64_L_KEY_IDX_H_M,
		       MPT_BYTE_64_L_KEY_IDX_H_S, mtpt_idx >> MTPT_IDX_SHIFT);

	/* DMA momery regsiter */
	if (mr->type == MR_TYPE_DMA)
		return 0;

	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)) >> 12;

		/* Directly record to MTPT table firstly 7 entry */
		if (i >= HNS_ROCE_MAX_INNER_MTPT_NUM)
			break;
		i++;
	}

	/* Register user mr */
	for (i = 0; i < HNS_ROCE_MAX_INNER_MTPT_NUM; i++) {
		switch (i) {
		case 0:
			mpt_entry->pa0_l = cpu_to_le32((u32)(pages[i]));
			roce_set_field(mpt_entry->mpt_byte_36,
				MPT_BYTE_36_PA0_H_M,
				MPT_BYTE_36_PA0_H_S,
				cpu_to_le32((u32)(pages[i] >> PAGES_SHIFT_32)));
			break;
		case 1:
			roce_set_field(mpt_entry->mpt_byte_36,
				       MPT_BYTE_36_PA1_L_M,
				       MPT_BYTE_36_PA1_L_S,
				       cpu_to_le32((u32)(pages[i])));
			roce_set_field(mpt_entry->mpt_byte_40,
				MPT_BYTE_40_PA1_H_M,
				MPT_BYTE_40_PA1_H_S,
				cpu_to_le32((u32)(pages[i] >> PAGES_SHIFT_24)));
			break;
		case 2:
			roce_set_field(mpt_entry->mpt_byte_40,
				       MPT_BYTE_40_PA2_L_M,
				       MPT_BYTE_40_PA2_L_S,
				       cpu_to_le32((u32)(pages[i])));
			roce_set_field(mpt_entry->mpt_byte_44,
				MPT_BYTE_44_PA2_H_M,
				MPT_BYTE_44_PA2_H_S,
				cpu_to_le32((u32)(pages[i] >> PAGES_SHIFT_16)));
			break;
		case 3:
			roce_set_field(mpt_entry->mpt_byte_44,
				       MPT_BYTE_44_PA3_L_M,
				       MPT_BYTE_44_PA3_L_S,
				       cpu_to_le32((u32)(pages[i])));
			roce_set_field(mpt_entry->mpt_byte_48,
				MPT_BYTE_48_PA3_H_M,
				MPT_BYTE_48_PA3_H_S,
				cpu_to_le32((u32)(pages[i] >> PAGES_SHIFT_8)));
			break;
		case 4:
			mpt_entry->pa4_l = cpu_to_le32((u32)(pages[i]));
			roce_set_field(mpt_entry->mpt_byte_56,
				MPT_BYTE_56_PA4_H_M,
				MPT_BYTE_56_PA4_H_S,
				cpu_to_le32((u32)(pages[i] >> PAGES_SHIFT_32)));
			break;
		case 5:
			roce_set_field(mpt_entry->mpt_byte_56,
				       MPT_BYTE_56_PA5_L_M,
				       MPT_BYTE_56_PA5_L_S,
				       cpu_to_le32((u32)(pages[i])));
			roce_set_field(mpt_entry->mpt_byte_60,
				MPT_BYTE_60_PA5_H_M,
				MPT_BYTE_60_PA5_H_S,
				cpu_to_le32((u32)(pages[i] >> PAGES_SHIFT_24)));
			break;
		case 6:
			roce_set_field(mpt_entry->mpt_byte_60,
				       MPT_BYTE_60_PA6_L_M,
				       MPT_BYTE_60_PA6_L_S,
				       cpu_to_le32((u32)(pages[i])));
			roce_set_field(mpt_entry->mpt_byte_64,
				MPT_BYTE_64_PA6_H_M,
				MPT_BYTE_64_PA6_H_S,
				cpu_to_le32((u32)(pages[i] >> PAGES_SHIFT_16)));
			break;
		default:
			break;
		}
	}

	free_page((unsigned long) pages);

	mpt_entry->pbl_addr_l = (u32)(mr->pbl_dma_addr);

	roce_set_field(mpt_entry->mpt_byte_12, MPT_BYTE_12_PBL_ADDR_H_M,
		       MPT_BYTE_12_PBL_ADDR_H_S,
		       ((u32)(mr->pbl_dma_addr >> 32)));

	return 0;
}

static void *get_cqe(struct hns_roce_cq *hr_cq, int n)
{
	return hns_roce_buf_offset(&hr_cq->hr_buf.hr_buf,
				   n * HNS_ROCE_V1_CQE_ENTRY_SIZE);
}

static void *get_sw_cqe(struct hns_roce_cq *hr_cq, int n)
{
	struct hns_roce_cqe *hr_cqe = get_cqe(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(hr_cqe->cqe_byte_4, CQE_BYTE_4_OWNER_S) ^
		!!(n & (hr_cq->ib_cq.cqe + 1))) ? hr_cqe : NULL;
}

static struct hns_roce_cqe *next_cqe_sw(struct hns_roce_cq *hr_cq)
{
	return get_sw_cqe(hr_cq, hr_cq->cons_index);
}

1265
void hns_roce_v1_cq_set_ci(struct hns_roce_cq *hr_cq, u32 cons_index)
1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324
{
	u32 doorbell[2];

	doorbell[0] = cons_index & ((hr_cq->cq_depth << 1) - 1);
	roce_set_bit(doorbell[1], ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_HW_SYNS_S, 1);
	roce_set_field(doorbell[1], ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_CMD_M,
		       ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_CMD_S, 3);
	roce_set_field(doorbell[1], ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_CMD_MDF_M,
		       ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_CMD_MDF_S, 0);
	roce_set_field(doorbell[1], ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_INP_H_M,
		       ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_INP_H_S, hr_cq->cqn);

	hns_roce_write64_k(doorbell, hr_cq->cq_db_l);
}

static void __hns_roce_v1_cq_clean(struct hns_roce_cq *hr_cq, u32 qpn,
				   struct hns_roce_srq *srq)
{
	struct hns_roce_cqe *cqe, *dest;
	u32 prod_index;
	int nfreed = 0;
	u8 owner_bit;

	for (prod_index = hr_cq->cons_index; get_sw_cqe(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(hr_cq, prod_index & hr_cq->ib_cq.cqe);
		if ((roce_get_field(cqe->cqe_byte_16, CQE_BYTE_16_LOCAL_QPN_M,
				     CQE_BYTE_16_LOCAL_QPN_S) &
				     HNS_ROCE_CQE_QPN_MASK) == qpn) {
			/* In v1 engine, not support SRQ */
			++nfreed;
		} else if (nfreed) {
			dest = get_cqe(hr_cq, (prod_index + nfreed) &
				       hr_cq->ib_cq.cqe);
			owner_bit = roce_get_bit(dest->cqe_byte_4,
						 CQE_BYTE_4_OWNER_S);
			memcpy(dest, cqe, sizeof(*cqe));
			roce_set_bit(dest->cqe_byte_4, 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();

1325
		hns_roce_v1_cq_set_ci(hr_cq, hr_cq->cons_index);
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	}
}

static void hns_roce_v1_cq_clean(struct hns_roce_cq *hr_cq, u32 qpn,
				 struct hns_roce_srq *srq)
{
	spin_lock_irq(&hr_cq->lock);
	__hns_roce_v1_cq_clean(hr_cq, qpn, srq);
	spin_unlock_irq(&hr_cq->lock);
}

void hns_roce_v1_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_cq_context *cq_context = NULL;
	void __iomem *tptr_addr;

	cq_context = mb_buf;
	memset(cq_context, 0, sizeof(*cq_context));

	tptr_addr = 0;
	hr_dev->priv_addr = tptr_addr;
	hr_cq->tptr_addr = tptr_addr;

	/* Register cq_context members */
	roce_set_field(cq_context->cqc_byte_4,
		       CQ_CONTEXT_CQC_BYTE_4_CQC_STATE_M,
		       CQ_CONTEXT_CQC_BYTE_4_CQC_STATE_S, CQ_STATE_VALID);
	roce_set_field(cq_context->cqc_byte_4, CQ_CONTEXT_CQC_BYTE_4_CQN_M,
		       CQ_CONTEXT_CQC_BYTE_4_CQN_S, hr_cq->cqn);
	cq_context->cqc_byte_4 = cpu_to_le32(cq_context->cqc_byte_4);

	cq_context->cq_bt_l = (u32)dma_handle;
	cq_context->cq_bt_l = cpu_to_le32(cq_context->cq_bt_l);

	roce_set_field(cq_context->cqc_byte_12,
		       CQ_CONTEXT_CQC_BYTE_12_CQ_BT_H_M,
		       CQ_CONTEXT_CQC_BYTE_12_CQ_BT_H_S,
		       ((u64)dma_handle >> 32));
	roce_set_field(cq_context->cqc_byte_12,
		       CQ_CONTEXT_CQC_BYTE_12_CQ_CQE_SHIFT_M,
		       CQ_CONTEXT_CQC_BYTE_12_CQ_CQE_SHIFT_S,
		       ilog2((unsigned int)nent));
	roce_set_field(cq_context->cqc_byte_12, CQ_CONTEXT_CQC_BYTE_12_CEQN_M,
		       CQ_CONTEXT_CQC_BYTE_12_CEQN_S, vector);
	cq_context->cqc_byte_12 = cpu_to_le32(cq_context->cqc_byte_12);

	cq_context->cur_cqe_ba0_l = (u32)(mtts[0]);
	cq_context->cur_cqe_ba0_l = cpu_to_le32(cq_context->cur_cqe_ba0_l);

	roce_set_field(cq_context->cqc_byte_20,
		       CQ_CONTEXT_CQC_BYTE_20_CUR_CQE_BA0_H_M,
		       CQ_CONTEXT_CQC_BYTE_20_CUR_CQE_BA0_H_S,
		       cpu_to_le32((mtts[0]) >> 32));
	/* Dedicated hardware, directly set 0 */
	roce_set_field(cq_context->cqc_byte_20,
		       CQ_CONTEXT_CQC_BYTE_20_CQ_CUR_INDEX_M,
		       CQ_CONTEXT_CQC_BYTE_20_CQ_CUR_INDEX_S, 0);
	/**
	 * 44 = 32 + 12, When evaluating addr to hardware, shift 12 because of
	 * using 4K page, and shift more 32 because of
	 * caculating the high 32 bit value evaluated to hardware.
	 */
	roce_set_field(cq_context->cqc_byte_20,
		       CQ_CONTEXT_CQC_BYTE_20_CQE_TPTR_ADDR_H_M,
		       CQ_CONTEXT_CQC_BYTE_20_CQE_TPTR_ADDR_H_S,
		       (u64)tptr_addr >> 44);
	cq_context->cqc_byte_20 = cpu_to_le32(cq_context->cqc_byte_20);

	cq_context->cqe_tptr_addr_l = (u32)((u64)tptr_addr >> 12);

	roce_set_field(cq_context->cqc_byte_32,
		       CQ_CONTEXT_CQC_BYTE_32_CUR_CQE_BA1_H_M,
		       CQ_CONTEXT_CQC_BYTE_32_CUR_CQE_BA1_H_S, 0);
	roce_set_bit(cq_context->cqc_byte_32,
		     CQ_CONTEXT_CQC_BYTE_32_SE_FLAG_S, 0);
	roce_set_bit(cq_context->cqc_byte_32,
		     CQ_CONTEXT_CQC_BYTE_32_CE_FLAG_S, 0);
	roce_set_bit(cq_context->cqc_byte_32,
		     CQ_CONTEXT_CQC_BYTE_32_NOTIFICATION_FLAG_S, 0);
	roce_set_bit(cq_context->cqc_byte_32,
		     CQ_CQNTEXT_CQC_BYTE_32_TYPE_OF_COMPLETION_NOTIFICATION_S,
		     0);
	/*The initial value of cq's ci is 0 */
	roce_set_field(cq_context->cqc_byte_32,
		       CQ_CONTEXT_CQC_BYTE_32_CQ_CONS_IDX_M,
		       CQ_CONTEXT_CQC_BYTE_32_CQ_CONS_IDX_S, 0);
	cq_context->cqc_byte_32 = cpu_to_le32(cq_context->cqc_byte_32);
}

int hns_roce_v1_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];
	int ret = 0;

	notification_flag = (flags & IB_CQ_SOLICITED_MASK) ==
			    IB_CQ_SOLICITED ? CQ_DB_REQ_NOT : CQ_DB_REQ_NOT_SOL;
	/*
	* flags = 0; Notification Flag = 1, next
	* flags = 1; Notification Flag = 0, solocited
	*/
	doorbell[0] = hr_cq->cons_index & ((hr_cq->cq_depth << 1) - 1);
	roce_set_bit(doorbell[1], ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_HW_SYNS_S, 1);
	roce_set_field(doorbell[1], ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_CMD_M,
		       ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_CMD_S, 3);
	roce_set_field(doorbell[1], ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_CMD_MDF_M,
		       ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_CMD_MDF_S, 1);
	roce_set_field(doorbell[1], ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_INP_H_M,
		       ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_INP_H_S,
		       hr_cq->cqn | notification_flag);

	hns_roce_write64_k(doorbell, hr_cq->cq_db_l);

	return ret;
}

static int hns_roce_v1_poll_one(struct hns_roce_cq *hr_cq,
				struct hns_roce_qp **cur_qp, struct ib_wc *wc)
{
	int qpn;
	int is_send;
	u16 wqe_ctr;
	u32 status;
	u32 opcode;
	struct hns_roce_cqe *cqe;
	struct hns_roce_qp *hr_qp;
	struct hns_roce_wq *wq;
	struct hns_roce_wqe_ctrl_seg *sq_wqe;
	struct hns_roce_dev *hr_dev = to_hr_dev(hr_cq->ib_cq.device);
	struct device *dev = &hr_dev->pdev->dev;

	/* Find cqe according consumer index */
	cqe = next_cqe_sw(hr_cq);
	if (!cqe)
		return -EAGAIN;

	++hr_cq->cons_index;
	/* Memory barrier */
	rmb();
	/* 0->SQ, 1->RQ */
	is_send  = !(roce_get_bit(cqe->cqe_byte_4, CQE_BYTE_4_SQ_RQ_FLAG_S));

	/* Local_qpn in UD cqe is always 1, so it needs to compute new qpn */
	if (roce_get_field(cqe->cqe_byte_16, CQE_BYTE_16_LOCAL_QPN_M,
			   CQE_BYTE_16_LOCAL_QPN_S) <= 1) {
		qpn = roce_get_field(cqe->cqe_byte_20, CQE_BYTE_20_PORT_NUM_M,
				     CQE_BYTE_20_PORT_NUM_S) +
		      roce_get_field(cqe->cqe_byte_16, CQE_BYTE_16_LOCAL_QPN_M,
				     CQE_BYTE_16_LOCAL_QPN_S) *
				     HNS_ROCE_MAX_PORTS;
	} else {
		qpn = roce_get_field(cqe->cqe_byte_16, CQE_BYTE_16_LOCAL_QPN_M,
				     CQE_BYTE_16_LOCAL_QPN_S);
	}

	if (!*cur_qp || (qpn & HNS_ROCE_CQE_QPN_MASK) != (*cur_qp)->qpn) {
		hr_qp = __hns_roce_qp_lookup(hr_dev, qpn);
		if (unlikely(!hr_qp)) {
			dev_err(dev, "CQ %06lx with entry for unknown QPN %06x\n",
				hr_cq->cqn, (qpn & HNS_ROCE_CQE_QPN_MASK));
			return -EINVAL;
		}

		*cur_qp = hr_qp;
	}

	wc->qp = &(*cur_qp)->ibqp;
	wc->vendor_err = 0;

	status = roce_get_field(cqe->cqe_byte_4,
				CQE_BYTE_4_STATUS_OF_THE_OPERATION_M,
				CQE_BYTE_4_STATUS_OF_THE_OPERATION_S) &
				HNS_ROCE_CQE_STATUS_MASK;
	switch (status) {
	case HNS_ROCE_CQE_SUCCESS:
		wc->status = IB_WC_SUCCESS;
		break;
	case HNS_ROCE_CQE_SYNDROME_LOCAL_LENGTH_ERR:
		wc->status = IB_WC_LOC_LEN_ERR;
		break;
	case HNS_ROCE_CQE_SYNDROME_LOCAL_QP_OP_ERR:
		wc->status = IB_WC_LOC_QP_OP_ERR;
		break;
	case HNS_ROCE_CQE_SYNDROME_LOCAL_PROT_ERR:
		wc->status = IB_WC_LOC_PROT_ERR;
		break;
	case HNS_ROCE_CQE_SYNDROME_WR_FLUSH_ERR:
		wc->status = IB_WC_WR_FLUSH_ERR;
		break;
	case HNS_ROCE_CQE_SYNDROME_MEM_MANAGE_OPERATE_ERR:
		wc->status = IB_WC_MW_BIND_ERR;
		break;
	case HNS_ROCE_CQE_SYNDROME_BAD_RESP_ERR:
		wc->status = IB_WC_BAD_RESP_ERR;
		break;
	case HNS_ROCE_CQE_SYNDROME_LOCAL_ACCESS_ERR:
		wc->status = IB_WC_LOC_ACCESS_ERR;
		break;
	case HNS_ROCE_CQE_SYNDROME_REMOTE_INVAL_REQ_ERR:
		wc->status = IB_WC_REM_INV_REQ_ERR;
		break;
	case HNS_ROCE_CQE_SYNDROME_REMOTE_ACCESS_ERR:
		wc->status = IB_WC_REM_ACCESS_ERR;
		break;
	case HNS_ROCE_CQE_SYNDROME_REMOTE_OP_ERR:
		wc->status = IB_WC_REM_OP_ERR;
		break;
	case HNS_ROCE_CQE_SYNDROME_TRANSPORT_RETRY_EXC_ERR:
		wc->status = IB_WC_RETRY_EXC_ERR;
		break;
	case HNS_ROCE_CQE_SYNDROME_RNR_RETRY_EXC_ERR:
		wc->status = IB_WC_RNR_RETRY_EXC_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) {
		/* SQ conrespond to CQE */
		sq_wqe = get_send_wqe(*cur_qp, roce_get_field(cqe->cqe_byte_4,
						CQE_BYTE_4_WQE_INDEX_M,
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						CQE_BYTE_4_WQE_INDEX_S)&
						((*cur_qp)->sq.wqe_cnt-1));
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		switch (sq_wqe->flag & HNS_ROCE_WQE_OPCODE_MASK) {
		case HNS_ROCE_WQE_OPCODE_SEND:
			wc->opcode = IB_WC_SEND;
			break;
		case HNS_ROCE_WQE_OPCODE_RDMA_READ:
			wc->opcode = IB_WC_RDMA_READ;
			wc->byte_len = le32_to_cpu(cqe->byte_cnt);
			break;
		case HNS_ROCE_WQE_OPCODE_RDMA_WRITE:
			wc->opcode = IB_WC_RDMA_WRITE;
			break;
		case HNS_ROCE_WQE_OPCODE_LOCAL_INV:
			wc->opcode = IB_WC_LOCAL_INV;
			break;
		case HNS_ROCE_WQE_OPCODE_UD_SEND:
			wc->opcode = IB_WC_SEND;
			break;
		default:
			wc->status = IB_WC_GENERAL_ERR;
			break;
		}
		wc->wc_flags = (sq_wqe->flag & HNS_ROCE_WQE_IMM ?
				IB_WC_WITH_IMM : 0);

		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->cqe_byte_4,
						      CQE_BYTE_4_WQE_INDEX_M,
						      CQE_BYTE_4_WQE_INDEX_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 conrespond to CQE */
		wc->byte_len = le32_to_cpu(cqe->byte_cnt);
		opcode = roce_get_field(cqe->cqe_byte_4,
					CQE_BYTE_4_OPERATION_TYPE_M,
					CQE_BYTE_4_OPERATION_TYPE_S) &
					HNS_ROCE_CQE_OPCODE_MASK;
		switch (opcode) {
		case HNS_ROCE_OPCODE_RDMA_WITH_IMM_RECEIVE:
			wc->opcode = IB_WC_RECV_RDMA_WITH_IMM;
			wc->wc_flags = IB_WC_WITH_IMM;
			wc->ex.imm_data = le32_to_cpu(cqe->immediate_data);
			break;
		case HNS_ROCE_OPCODE_SEND_DATA_RECEIVE:
			if (roce_get_bit(cqe->cqe_byte_4,
					 CQE_BYTE_4_IMM_INDICATOR_S)) {
				wc->opcode = IB_WC_RECV;
				wc->wc_flags = IB_WC_WITH_IMM;
				wc->ex.imm_data = le32_to_cpu(
						  cqe->immediate_data);
			} else {
				wc->opcode = IB_WC_RECV;
				wc->wc_flags = 0;
			}
			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->cqe_byte_20, CQE_BYTE_20_SL_M,
					    CQE_BYTE_20_SL_S);
		wc->src_qp = (u8)roce_get_field(cqe->cqe_byte_20,
						CQE_BYTE_20_REMOTE_QPN_M,
						CQE_BYTE_20_REMOTE_QPN_S);
		wc->wc_flags |= (roce_get_bit(cqe->cqe_byte_20,
					      CQE_BYTE_20_GRH_PRESENT_S) ?
					      IB_WC_GRH : 0);
		wc->pkey_index = (u16)roce_get_field(cqe->cqe_byte_28,
						     CQE_BYTE_28_P_KEY_IDX_M,
						     CQE_BYTE_28_P_KEY_IDX_S);
	}

	return 0;
}

int hns_roce_v1_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;
	int ret = 0;

	spin_lock_irqsave(&hr_cq->lock, flags);

	for (npolled = 0; npolled < num_entries; ++npolled) {
		ret = hns_roce_v1_poll_one(hr_cq, &cur_qp, wc + npolled);
		if (ret)
			break;
	}

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	if (npolled)
		hns_roce_v1_cq_set_ci(hr_cq, hr_cq->cons_index);
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	spin_unlock_irqrestore(&hr_cq->lock, flags);

	if (ret == 0 || ret == -EAGAIN)
		return npolled;
	else
		return ret;
}

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int hns_roce_v1_clear_hem(struct hns_roce_dev *hr_dev,
		struct hns_roce_hem_table *table, int obj)
{
	struct device *dev = &hr_dev->pdev->dev;
	struct hns_roce_v1_priv *priv;
	unsigned long end = 0, flags = 0;
	uint32_t bt_cmd_val[2] = {0};
	void __iomem *bt_cmd;
	u64 bt_ba = 0;

	priv = (struct hns_roce_v1_priv *)hr_dev->hw->priv;

	switch (table->type) {
	case HEM_TYPE_QPC:
		roce_set_field(bt_cmd_val[1], ROCEE_BT_CMD_H_ROCEE_BT_CMD_MDF_M,
			ROCEE_BT_CMD_H_ROCEE_BT_CMD_MDF_S, HEM_TYPE_QPC);
		bt_ba = priv->bt_table.qpc_buf.map >> 12;
		break;
	case HEM_TYPE_MTPT:
		roce_set_field(bt_cmd_val[1], ROCEE_BT_CMD_H_ROCEE_BT_CMD_MDF_M,
			ROCEE_BT_CMD_H_ROCEE_BT_CMD_MDF_S, HEM_TYPE_MTPT);
		bt_ba = priv->bt_table.mtpt_buf.map >> 12;
		break;
	case HEM_TYPE_CQC:
		roce_set_field(bt_cmd_val[1], ROCEE_BT_CMD_H_ROCEE_BT_CMD_MDF_M,
			ROCEE_BT_CMD_H_ROCEE_BT_CMD_MDF_S, HEM_TYPE_CQC);
		bt_ba = priv->bt_table.cqc_buf.map >> 12;
		break;
	case HEM_TYPE_SRQC:
		dev_dbg(dev, "HEM_TYPE_SRQC not support.\n");
		return -EINVAL;
	default:
		return 0;
	}
	roce_set_field(bt_cmd_val[1], ROCEE_BT_CMD_H_ROCEE_BT_CMD_IN_MDF_M,
		ROCEE_BT_CMD_H_ROCEE_BT_CMD_IN_MDF_S, obj);
	roce_set_bit(bt_cmd_val[1], ROCEE_BT_CMD_H_ROCEE_BT_CMD_S, 0);
	roce_set_bit(bt_cmd_val[1], ROCEE_BT_CMD_H_ROCEE_BT_CMD_HW_SYNS_S, 1);

	spin_lock_irqsave(&hr_dev->bt_cmd_lock, flags);

	bt_cmd = hr_dev->reg_base + ROCEE_BT_CMD_H_REG;

	end = msecs_to_jiffies(HW_SYNC_TIMEOUT_MSECS) + jiffies;
	while (1) {
		if (readl(bt_cmd) >> BT_CMD_SYNC_SHIFT) {
			if (!(time_before(jiffies, end))) {
				dev_err(dev, "Write bt_cmd err,hw_sync is not zero.\n");
				spin_unlock_irqrestore(&hr_dev->bt_cmd_lock,
					flags);
				return -EBUSY;
			}
		} else {
			break;
		}
		msleep(HW_SYNC_SLEEP_TIME_INTERVAL);
	}

	bt_cmd_val[0] = (uint32_t)bt_ba;
	roce_set_field(bt_cmd_val[1], ROCEE_BT_CMD_H_ROCEE_BT_CMD_BA_H_M,
		ROCEE_BT_CMD_H_ROCEE_BT_CMD_BA_H_S, bt_ba >> 32);
	hns_roce_write64_k(bt_cmd_val, hr_dev->reg_base + ROCEE_BT_CMD_L_REG);

	spin_unlock_irqrestore(&hr_dev->bt_cmd_lock, flags);

	return 0;
}

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static int hns_roce_v1_qp_modify(struct hns_roce_dev *hr_dev,
				 struct hns_roce_mtt *mtt,
				 enum hns_roce_qp_state cur_state,
				 enum hns_roce_qp_state new_state,
				 struct hns_roce_qp_context *context,
				 struct hns_roce_qp *hr_qp)
{
	static const u16
	op[HNS_ROCE_QP_NUM_STATE][HNS_ROCE_QP_NUM_STATE] = {
		[HNS_ROCE_QP_STATE_RST] = {
		[HNS_ROCE_QP_STATE_RST] = HNS_ROCE_CMD_2RST_QP,
		[HNS_ROCE_QP_STATE_ERR] = HNS_ROCE_CMD_2ERR_QP,
		[HNS_ROCE_QP_STATE_INIT] = HNS_ROCE_CMD_RST2INIT_QP,
		},
		[HNS_ROCE_QP_STATE_INIT] = {
		[HNS_ROCE_QP_STATE_RST] = HNS_ROCE_CMD_2RST_QP,
		[HNS_ROCE_QP_STATE_ERR] = HNS_ROCE_CMD_2ERR_QP,
		/* Note: In v1 engine, HW doesn't support RST2INIT.
		 * We use RST2INIT cmd instead of INIT2INIT.
		 */
		[HNS_ROCE_QP_STATE_INIT] = HNS_ROCE_CMD_RST2INIT_QP,
		[HNS_ROCE_QP_STATE_RTR] = HNS_ROCE_CMD_INIT2RTR_QP,
		},
		[HNS_ROCE_QP_STATE_RTR] = {
		[HNS_ROCE_QP_STATE_RST] = HNS_ROCE_CMD_2RST_QP,
		[HNS_ROCE_QP_STATE_ERR] = HNS_ROCE_CMD_2ERR_QP,
		[HNS_ROCE_QP_STATE_RTS] = HNS_ROCE_CMD_RTR2RTS_QP,
		},
		[HNS_ROCE_QP_STATE_RTS] = {
		[HNS_ROCE_QP_STATE_RST] = HNS_ROCE_CMD_2RST_QP,
		[HNS_ROCE_QP_STATE_ERR] = HNS_ROCE_CMD_2ERR_QP,
		[HNS_ROCE_QP_STATE_RTS] = HNS_ROCE_CMD_RTS2RTS_QP,
		[HNS_ROCE_QP_STATE_SQD] = HNS_ROCE_CMD_RTS2SQD_QP,
		},
		[HNS_ROCE_QP_STATE_SQD] = {
		[HNS_ROCE_QP_STATE_RST] = HNS_ROCE_CMD_2RST_QP,
		[HNS_ROCE_QP_STATE_ERR] = HNS_ROCE_CMD_2ERR_QP,
		[HNS_ROCE_QP_STATE_RTS] = HNS_ROCE_CMD_SQD2RTS_QP,
		[HNS_ROCE_QP_STATE_SQD] = HNS_ROCE_CMD_SQD2SQD_QP,
		},
		[HNS_ROCE_QP_STATE_ERR] = {
		[HNS_ROCE_QP_STATE_RST] = HNS_ROCE_CMD_2RST_QP,
		[HNS_ROCE_QP_STATE_ERR] = HNS_ROCE_CMD_2ERR_QP,
		}
	};

	struct hns_roce_cmd_mailbox *mailbox;
	struct device *dev = &hr_dev->pdev->dev;
	int ret = 0;

	if (cur_state >= HNS_ROCE_QP_NUM_STATE ||
	    new_state >= HNS_ROCE_QP_NUM_STATE ||
	    !op[cur_state][new_state]) {
		dev_err(dev, "[modify_qp]not support state %d to %d\n",
			cur_state, new_state);
		return -EINVAL;
	}

	if (op[cur_state][new_state] == HNS_ROCE_CMD_2RST_QP)
		return hns_roce_cmd_mbox(hr_dev, 0, 0, hr_qp->qpn, 2,
					 HNS_ROCE_CMD_2RST_QP,
					 HNS_ROCE_CMD_TIME_CLASS_A);

	if (op[cur_state][new_state] == HNS_ROCE_CMD_2ERR_QP)
		return hns_roce_cmd_mbox(hr_dev, 0, 0, hr_qp->qpn, 2,
					 HNS_ROCE_CMD_2ERR_QP,
					 HNS_ROCE_CMD_TIME_CLASS_A);

	mailbox = hns_roce_alloc_cmd_mailbox(hr_dev);
	if (IS_ERR(mailbox))
		return PTR_ERR(mailbox);

	memcpy(mailbox->buf, context, sizeof(*context));

	ret = hns_roce_cmd_mbox(hr_dev, mailbox->dma, 0, hr_qp->qpn, 0,
				op[cur_state][new_state],
				HNS_ROCE_CMD_TIME_CLASS_C);

	hns_roce_free_cmd_mailbox(hr_dev, mailbox);
	return ret;
}

static int hns_roce_v1_m_sqp(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_sqp_context *context;
	struct device *dev = &hr_dev->pdev->dev;
	dma_addr_t dma_handle = 0;
	int rq_pa_start;
	u32 reg_val;
	u64 *mtts;
	u32 *addr;

	context = kzalloc(sizeof(*context), GFP_KERNEL);
	if (!context)
		return -ENOMEM;

	/* Search QP buf's MTTs */
	mtts = hns_roce_table_find(&hr_dev->mr_table.mtt_table,
				   hr_qp->mtt.first_seg, &dma_handle);
	if (!mtts) {
		dev_err(dev, "qp buf pa find failed\n");
		goto out;
	}

	if (cur_state == IB_QPS_RESET && new_state == IB_QPS_INIT) {
		roce_set_field(context->qp1c_bytes_4,
			       QP1C_BYTES_4_SQ_WQE_SHIFT_M,
			       QP1C_BYTES_4_SQ_WQE_SHIFT_S,
			       ilog2((unsigned int)hr_qp->sq.wqe_cnt));
		roce_set_field(context->qp1c_bytes_4,
			       QP1C_BYTES_4_RQ_WQE_SHIFT_M,
			       QP1C_BYTES_4_RQ_WQE_SHIFT_S,
			       ilog2((unsigned int)hr_qp->rq.wqe_cnt));
		roce_set_field(context->qp1c_bytes_4, QP1C_BYTES_4_PD_M,
			       QP1C_BYTES_4_PD_S, to_hr_pd(ibqp->pd)->pdn);

		context->sq_rq_bt_l = (u32)(dma_handle);
		roce_set_field(context->qp1c_bytes_12,
			       QP1C_BYTES_12_SQ_RQ_BT_H_M,
			       QP1C_BYTES_12_SQ_RQ_BT_H_S,
			       ((u32)(dma_handle >> 32)));

		roce_set_field(context->qp1c_bytes_16, QP1C_BYTES_16_RQ_HEAD_M,
			       QP1C_BYTES_16_RQ_HEAD_S, hr_qp->rq.head);
		roce_set_field(context->qp1c_bytes_16, QP1C_BYTES_16_PORT_NUM_M,
1870
			       QP1C_BYTES_16_PORT_NUM_S, hr_qp->phy_port);
1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917
		roce_set_bit(context->qp1c_bytes_16,
			     QP1C_BYTES_16_SIGNALING_TYPE_S,
			     hr_qp->sq_signal_bits);
		roce_set_bit(context->qp1c_bytes_16, QP1C_BYTES_16_RQ_BA_FLG_S,
			     1);
		roce_set_bit(context->qp1c_bytes_16, QP1C_BYTES_16_SQ_BA_FLG_S,
			     1);
		roce_set_bit(context->qp1c_bytes_16, QP1C_BYTES_16_QP1_ERR_S,
			     0);

		roce_set_field(context->qp1c_bytes_20, QP1C_BYTES_20_SQ_HEAD_M,
			       QP1C_BYTES_20_SQ_HEAD_S, hr_qp->sq.head);
		roce_set_field(context->qp1c_bytes_20, QP1C_BYTES_20_PKEY_IDX_M,
			       QP1C_BYTES_20_PKEY_IDX_S, attr->pkey_index);

		rq_pa_start = (u32)hr_qp->rq.offset / PAGE_SIZE;
		context->cur_rq_wqe_ba_l = (u32)(mtts[rq_pa_start]);

		roce_set_field(context->qp1c_bytes_28,
			       QP1C_BYTES_28_CUR_RQ_WQE_BA_H_M,
			       QP1C_BYTES_28_CUR_RQ_WQE_BA_H_S,
			       (mtts[rq_pa_start]) >> 32);
		roce_set_field(context->qp1c_bytes_28,
			       QP1C_BYTES_28_RQ_CUR_IDX_M,
			       QP1C_BYTES_28_RQ_CUR_IDX_S, 0);

		roce_set_field(context->qp1c_bytes_32,
			       QP1C_BYTES_32_RX_CQ_NUM_M,
			       QP1C_BYTES_32_RX_CQ_NUM_S,
			       to_hr_cq(ibqp->recv_cq)->cqn);
		roce_set_field(context->qp1c_bytes_32,
			       QP1C_BYTES_32_TX_CQ_NUM_M,
			       QP1C_BYTES_32_TX_CQ_NUM_S,
			       to_hr_cq(ibqp->send_cq)->cqn);

		context->cur_sq_wqe_ba_l  = (u32)mtts[0];

		roce_set_field(context->qp1c_bytes_40,
			       QP1C_BYTES_40_CUR_SQ_WQE_BA_H_M,
			       QP1C_BYTES_40_CUR_SQ_WQE_BA_H_S,
			       (mtts[0]) >> 32);
		roce_set_field(context->qp1c_bytes_40,
			       QP1C_BYTES_40_SQ_CUR_IDX_M,
			       QP1C_BYTES_40_SQ_CUR_IDX_S, 0);

		/* Copy context to QP1C register */
		addr = (u32 *)(hr_dev->reg_base + ROCEE_QP1C_CFG0_0_REG +
1918
			hr_qp->phy_port * sizeof(*context));
1919 1920 1921 1922 1923 1924 1925 1926 1927 1928

		writel(context->qp1c_bytes_4, addr);
		writel(context->sq_rq_bt_l, addr + 1);
		writel(context->qp1c_bytes_12, addr + 2);
		writel(context->qp1c_bytes_16, addr + 3);
		writel(context->qp1c_bytes_20, addr + 4);
		writel(context->cur_rq_wqe_ba_l, addr + 5);
		writel(context->qp1c_bytes_28, addr + 6);
		writel(context->qp1c_bytes_32, addr + 7);
		writel(context->cur_sq_wqe_ba_l, addr + 8);
1929
		writel(context->qp1c_bytes_40, addr + 9);
1930 1931 1932 1933
	}

	/* Modify QP1C status */
	reg_val = roce_read(hr_dev, ROCEE_QP1C_CFG0_0_REG +
1934
			    hr_qp->phy_port * sizeof(*context));
1935 1936 1937
	roce_set_field(reg_val, ROCEE_QP1C_CFG0_0_ROCEE_QP1C_QP_ST_M,
		       ROCEE_QP1C_CFG0_0_ROCEE_QP1C_QP_ST_S, new_state);
	roce_write(hr_dev, ROCEE_QP1C_CFG0_0_REG +
1938
		    hr_qp->phy_port * sizeof(*context), reg_val);
1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 2055 2056 2057 2058 2059 2060 2061 2062 2063 2064 2065 2066 2067 2068 2069 2070 2071 2072 2073 2074 2075 2076 2077 2078 2079 2080 2081 2082 2083 2084 2085 2086 2087 2088 2089 2090 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100 2101 2102 2103 2104 2105 2106 2107 2108 2109 2110 2111 2112 2113 2114 2115 2116 2117 2118 2119 2120 2121 2122 2123 2124 2125 2126 2127 2128 2129 2130 2131 2132 2133 2134 2135 2136 2137 2138 2139 2140 2141 2142 2143 2144 2145 2146 2147 2148 2149 2150 2151 2152 2153 2154 2155 2156 2157 2158 2159 2160 2161 2162 2163 2164 2165 2166 2167 2168 2169 2170 2171 2172 2173 2174 2175 2176 2177 2178 2179 2180 2181 2182 2183 2184 2185 2186 2187 2188 2189 2190 2191 2192 2193 2194 2195 2196 2197 2198 2199 2200 2201 2202 2203 2204 2205 2206 2207 2208 2209 2210 2211 2212 2213 2214 2215 2216 2217 2218 2219 2220 2221 2222 2223 2224 2225 2226 2227 2228 2229 2230 2231 2232 2233 2234 2235 2236 2237 2238 2239 2240 2241 2242 2243 2244 2245 2246 2247 2248 2249 2250 2251

	hr_qp->state = new_state;
	if (new_state == IB_QPS_RESET) {
		hns_roce_v1_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_v1_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;
	}

	kfree(context);
	return 0;

out:
	kfree(context);
	return -EINVAL;
}

static int hns_roce_v1_m_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 device *dev = &hr_dev->pdev->dev;
	struct hns_roce_qp_context *context;
	dma_addr_t dma_handle_2 = 0;
	dma_addr_t dma_handle = 0;
	uint32_t doorbell[2] = {0};
	int rq_pa_start = 0;
	u64 *mtts_2 = NULL;
	int ret = -EINVAL;
	u64 *mtts = NULL;
	int port;
	u8 *dmac;
	u8 *smac;

	context = kzalloc(sizeof(*context), GFP_KERNEL);
	if (!context)
		return -ENOMEM;

	/* Search qp buf's mtts */
	mtts = hns_roce_table_find(&hr_dev->mr_table.mtt_table,
				   hr_qp->mtt.first_seg, &dma_handle);
	if (mtts == NULL) {
		dev_err(dev, "qp buf pa find failed\n");
		goto out;
	}

	/* Search IRRL's mtts */
	mtts_2 = hns_roce_table_find(&hr_dev->qp_table.irrl_table, hr_qp->qpn,
				     &dma_handle_2);
	if (mtts_2 == NULL) {
		dev_err(dev, "qp irrl_table find failed\n");
		goto out;
	}

	/*
	*Reset to init
	*	Mandatory param:
	*	IB_QP_STATE | IB_QP_PKEY_INDEX | IB_QP_PORT | IB_QP_ACCESS_FLAGS
	*	Optional param: NA
	*/
	if (cur_state == IB_QPS_RESET && new_state == IB_QPS_INIT) {
		roce_set_field(context->qpc_bytes_4,
			       QP_CONTEXT_QPC_BYTES_4_TRANSPORT_SERVICE_TYPE_M,
			       QP_CONTEXT_QPC_BYTES_4_TRANSPORT_SERVICE_TYPE_S,
			       to_hr_qp_type(hr_qp->ibqp.qp_type));

		roce_set_bit(context->qpc_bytes_4,
			     QP_CONTEXT_QPC_BYTE_4_ENABLE_FPMR_S, 0);
		roce_set_bit(context->qpc_bytes_4,
			     QP_CONTEXT_QPC_BYTE_4_RDMA_READ_ENABLE_S,
			     !!(attr->qp_access_flags & IB_ACCESS_REMOTE_READ));
		roce_set_bit(context->qpc_bytes_4,
			     QP_CONTEXT_QPC_BYTE_4_RDMA_WRITE_ENABLE_S,
			     !!(attr->qp_access_flags & IB_ACCESS_REMOTE_WRITE)
			     );
		roce_set_bit(context->qpc_bytes_4,
			     QP_CONTEXT_QPC_BYTE_4_ATOMIC_OPERATION_ENABLE_S,
			     !!(attr->qp_access_flags & IB_ACCESS_REMOTE_ATOMIC)
			     );
		roce_set_bit(context->qpc_bytes_4,
			     QP_CONTEXT_QPC_BYTE_4_RDMAR_USE_S, 1);
		roce_set_field(context->qpc_bytes_4,
			       QP_CONTEXT_QPC_BYTES_4_SQ_WQE_SHIFT_M,
			       QP_CONTEXT_QPC_BYTES_4_SQ_WQE_SHIFT_S,
			       ilog2((unsigned int)hr_qp->sq.wqe_cnt));
		roce_set_field(context->qpc_bytes_4,
			       QP_CONTEXT_QPC_BYTES_4_RQ_WQE_SHIFT_M,
			       QP_CONTEXT_QPC_BYTES_4_RQ_WQE_SHIFT_S,
			       ilog2((unsigned int)hr_qp->rq.wqe_cnt));
		roce_set_field(context->qpc_bytes_4,
			       QP_CONTEXT_QPC_BYTES_4_PD_M,
			       QP_CONTEXT_QPC_BYTES_4_PD_S,
			       to_hr_pd(ibqp->pd)->pdn);
		hr_qp->access_flags = attr->qp_access_flags;
		roce_set_field(context->qpc_bytes_8,
			       QP_CONTEXT_QPC_BYTES_8_TX_COMPLETION_M,
			       QP_CONTEXT_QPC_BYTES_8_TX_COMPLETION_S,
			       to_hr_cq(ibqp->send_cq)->cqn);
		roce_set_field(context->qpc_bytes_8,
			       QP_CONTEXT_QPC_BYTES_8_RX_COMPLETION_M,
			       QP_CONTEXT_QPC_BYTES_8_RX_COMPLETION_S,
			       to_hr_cq(ibqp->recv_cq)->cqn);

		if (ibqp->srq)
			roce_set_field(context->qpc_bytes_12,
				       QP_CONTEXT_QPC_BYTES_12_SRQ_NUMBER_M,
				       QP_CONTEXT_QPC_BYTES_12_SRQ_NUMBER_S,
				       to_hr_srq(ibqp->srq)->srqn);

		roce_set_field(context->qpc_bytes_12,
			       QP_CONTEXT_QPC_BYTES_12_P_KEY_INDEX_M,
			       QP_CONTEXT_QPC_BYTES_12_P_KEY_INDEX_S,
			       attr->pkey_index);
		hr_qp->pkey_index = attr->pkey_index;
		roce_set_field(context->qpc_bytes_16,
			       QP_CONTEXT_QPC_BYTES_16_QP_NUM_M,
			       QP_CONTEXT_QPC_BYTES_16_QP_NUM_S, hr_qp->qpn);

	} else if (cur_state == IB_QPS_INIT && new_state == IB_QPS_INIT) {
		roce_set_field(context->qpc_bytes_4,
			       QP_CONTEXT_QPC_BYTES_4_TRANSPORT_SERVICE_TYPE_M,
			       QP_CONTEXT_QPC_BYTES_4_TRANSPORT_SERVICE_TYPE_S,
			       to_hr_qp_type(hr_qp->ibqp.qp_type));
		roce_set_bit(context->qpc_bytes_4,
			     QP_CONTEXT_QPC_BYTE_4_ENABLE_FPMR_S, 0);
		if (attr_mask & IB_QP_ACCESS_FLAGS) {
			roce_set_bit(context->qpc_bytes_4,
				     QP_CONTEXT_QPC_BYTE_4_RDMA_READ_ENABLE_S,
				     !!(attr->qp_access_flags &
				     IB_ACCESS_REMOTE_READ));
			roce_set_bit(context->qpc_bytes_4,
				     QP_CONTEXT_QPC_BYTE_4_RDMA_WRITE_ENABLE_S,
				     !!(attr->qp_access_flags &
				     IB_ACCESS_REMOTE_WRITE));
		} else {
			roce_set_bit(context->qpc_bytes_4,
				     QP_CONTEXT_QPC_BYTE_4_RDMA_READ_ENABLE_S,
				     !!(hr_qp->access_flags &
				     IB_ACCESS_REMOTE_READ));
			roce_set_bit(context->qpc_bytes_4,
				     QP_CONTEXT_QPC_BYTE_4_RDMA_WRITE_ENABLE_S,
				     !!(hr_qp->access_flags &
				     IB_ACCESS_REMOTE_WRITE));
		}

		roce_set_bit(context->qpc_bytes_4,
			     QP_CONTEXT_QPC_BYTE_4_RDMAR_USE_S, 1);
		roce_set_field(context->qpc_bytes_4,
			       QP_CONTEXT_QPC_BYTES_4_SQ_WQE_SHIFT_M,
			       QP_CONTEXT_QPC_BYTES_4_SQ_WQE_SHIFT_S,
			       ilog2((unsigned int)hr_qp->sq.wqe_cnt));
		roce_set_field(context->qpc_bytes_4,
			       QP_CONTEXT_QPC_BYTES_4_RQ_WQE_SHIFT_M,
			       QP_CONTEXT_QPC_BYTES_4_RQ_WQE_SHIFT_S,
			       ilog2((unsigned int)hr_qp->rq.wqe_cnt));
		roce_set_field(context->qpc_bytes_4,
			       QP_CONTEXT_QPC_BYTES_4_PD_M,
			       QP_CONTEXT_QPC_BYTES_4_PD_S,
			       to_hr_pd(ibqp->pd)->pdn);

		roce_set_field(context->qpc_bytes_8,
			       QP_CONTEXT_QPC_BYTES_8_TX_COMPLETION_M,
			       QP_CONTEXT_QPC_BYTES_8_TX_COMPLETION_S,
			       to_hr_cq(ibqp->send_cq)->cqn);
		roce_set_field(context->qpc_bytes_8,
			       QP_CONTEXT_QPC_BYTES_8_RX_COMPLETION_M,
			       QP_CONTEXT_QPC_BYTES_8_RX_COMPLETION_S,
			       to_hr_cq(ibqp->recv_cq)->cqn);

		if (ibqp->srq)
			roce_set_field(context->qpc_bytes_12,
				       QP_CONTEXT_QPC_BYTES_12_SRQ_NUMBER_M,
				       QP_CONTEXT_QPC_BYTES_12_SRQ_NUMBER_S,
				       to_hr_srq(ibqp->srq)->srqn);
		if (attr_mask & IB_QP_PKEY_INDEX)
			roce_set_field(context->qpc_bytes_12,
				       QP_CONTEXT_QPC_BYTES_12_P_KEY_INDEX_M,
				       QP_CONTEXT_QPC_BYTES_12_P_KEY_INDEX_S,
				       attr->pkey_index);
		else
			roce_set_field(context->qpc_bytes_12,
				       QP_CONTEXT_QPC_BYTES_12_P_KEY_INDEX_M,
				       QP_CONTEXT_QPC_BYTES_12_P_KEY_INDEX_S,
				       hr_qp->pkey_index);

		roce_set_field(context->qpc_bytes_16,
			       QP_CONTEXT_QPC_BYTES_16_QP_NUM_M,
			       QP_CONTEXT_QPC_BYTES_16_QP_NUM_S, hr_qp->qpn);
	} else if (cur_state == IB_QPS_INIT && new_state == IB_QPS_RTR) {
		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 error\n");
			goto out;
		}

		dmac = (u8 *)attr->ah_attr.dmac;

		context->sq_rq_bt_l = (u32)(dma_handle);
		roce_set_field(context->qpc_bytes_24,
			       QP_CONTEXT_QPC_BYTES_24_SQ_RQ_BT_H_M,
			       QP_CONTEXT_QPC_BYTES_24_SQ_RQ_BT_H_S,
			       ((u32)(dma_handle >> 32)));
		roce_set_bit(context->qpc_bytes_24,
			     QP_CONTEXT_QPC_BYTE_24_REMOTE_ENABLE_E2E_CREDITS_S,
			     1);
		roce_set_field(context->qpc_bytes_24,
			       QP_CONTEXT_QPC_BYTES_24_MINIMUM_RNR_NAK_TIMER_M,
			       QP_CONTEXT_QPC_BYTES_24_MINIMUM_RNR_NAK_TIMER_S,
			       attr->min_rnr_timer);
		context->irrl_ba_l = (u32)(dma_handle_2);
		roce_set_field(context->qpc_bytes_32,
			       QP_CONTEXT_QPC_BYTES_32_IRRL_BA_H_M,
			       QP_CONTEXT_QPC_BYTES_32_IRRL_BA_H_S,
			       ((u32)(dma_handle_2 >> 32)) &
				QP_CONTEXT_QPC_BYTES_32_IRRL_BA_H_M);
		roce_set_field(context->qpc_bytes_32,
			       QP_CONTEXT_QPC_BYTES_32_MIG_STATE_M,
			       QP_CONTEXT_QPC_BYTES_32_MIG_STATE_S, 0);
		roce_set_bit(context->qpc_bytes_32,
			     QP_CONTEXT_QPC_BYTE_32_LOCAL_ENABLE_E2E_CREDITS_S,
			     1);
		roce_set_bit(context->qpc_bytes_32,
			     QP_CONTEXT_QPC_BYTE_32_SIGNALING_TYPE_S,
			     hr_qp->sq_signal_bits);

		for (port = 0; port < hr_dev->caps.num_ports; port++) {
			smac = (u8 *)hr_dev->dev_addr[port];
			dev_dbg(dev, "smac: %2x: %2x: %2x: %2x: %2x: %2x\n",
				smac[0], smac[1], smac[2], smac[3], smac[4],
				smac[5]);
			if ((dmac[0] == smac[0]) && (dmac[1] == smac[1]) &&
			    (dmac[2] == smac[2]) && (dmac[3] == smac[3]) &&
			    (dmac[4] == smac[4]) && (dmac[5] == smac[5])) {
				roce_set_bit(context->qpc_bytes_32,
				    QP_CONTEXT_QPC_BYTE_32_LOOPBACK_INDICATOR_S,
				    1);
				break;
			}
		}

		if (hr_dev->loop_idc == 0x1)
			roce_set_bit(context->qpc_bytes_32,
				QP_CONTEXT_QPC_BYTE_32_LOOPBACK_INDICATOR_S, 1);

		roce_set_bit(context->qpc_bytes_32,
			     QP_CONTEXT_QPC_BYTE_32_GLOBAL_HEADER_S,
			     attr->ah_attr.ah_flags);
		roce_set_field(context->qpc_bytes_32,
			       QP_CONTEXT_QPC_BYTES_32_RESPONDER_RESOURCES_M,
			       QP_CONTEXT_QPC_BYTES_32_RESPONDER_RESOURCES_S,
			       ilog2((unsigned int)attr->max_dest_rd_atomic));

		roce_set_field(context->qpc_bytes_36,
			       QP_CONTEXT_QPC_BYTES_36_DEST_QP_M,
			       QP_CONTEXT_QPC_BYTES_36_DEST_QP_S,
			       attr->dest_qp_num);

		/* Configure GID index */
		roce_set_field(context->qpc_bytes_36,
			       QP_CONTEXT_QPC_BYTES_36_SGID_INDEX_M,
			       QP_CONTEXT_QPC_BYTES_36_SGID_INDEX_S,
			       hns_get_gid_index(hr_dev,
						 attr->ah_attr.port_num - 1,
						 attr->ah_attr.grh.sgid_index));

		memcpy(&(context->dmac_l), dmac, 4);

		roce_set_field(context->qpc_bytes_44,
			       QP_CONTEXT_QPC_BYTES_44_DMAC_H_M,
			       QP_CONTEXT_QPC_BYTES_44_DMAC_H_S,
			       *((u16 *)(&dmac[4])));
		roce_set_field(context->qpc_bytes_44,
			       QP_CONTEXT_QPC_BYTES_44_MAXIMUM_STATIC_RATE_M,
			       QP_CONTEXT_QPC_BYTES_44_MAXIMUM_STATIC_RATE_S,
			       attr->ah_attr.static_rate);
		roce_set_field(context->qpc_bytes_44,
			       QP_CONTEXT_QPC_BYTES_44_HOPLMT_M,
			       QP_CONTEXT_QPC_BYTES_44_HOPLMT_S,
			       attr->ah_attr.grh.hop_limit);

		roce_set_field(context->qpc_bytes_48,
			       QP_CONTEXT_QPC_BYTES_48_FLOWLABEL_M,
			       QP_CONTEXT_QPC_BYTES_48_FLOWLABEL_S,
			       attr->ah_attr.grh.flow_label);
		roce_set_field(context->qpc_bytes_48,
			       QP_CONTEXT_QPC_BYTES_48_TCLASS_M,
			       QP_CONTEXT_QPC_BYTES_48_TCLASS_S,
			       attr->ah_attr.grh.traffic_class);
		roce_set_field(context->qpc_bytes_48,
			       QP_CONTEXT_QPC_BYTES_48_MTU_M,
			       QP_CONTEXT_QPC_BYTES_48_MTU_S, attr->path_mtu);

		memcpy(context->dgid, attr->ah_attr.grh.dgid.raw,
		       sizeof(attr->ah_attr.grh.dgid.raw));

		dev_dbg(dev, "dmac:%x :%lx\n", context->dmac_l,
			roce_get_field(context->qpc_bytes_44,
				       QP_CONTEXT_QPC_BYTES_44_DMAC_H_M,
				       QP_CONTEXT_QPC_BYTES_44_DMAC_H_S));

		roce_set_field(context->qpc_bytes_68,
			       QP_CONTEXT_QPC_BYTES_68_RQ_HEAD_M,
2252 2253
			       QP_CONTEXT_QPC_BYTES_68_RQ_HEAD_S,
			       hr_qp->rq.head);
2254 2255 2256 2257 2258 2259 2260 2261 2262 2263 2264 2265 2266 2267 2268 2269 2270 2271 2272 2273 2274 2275 2276 2277 2278 2279 2280 2281 2282 2283 2284 2285 2286 2287 2288 2289 2290 2291 2292 2293 2294 2295 2296 2297 2298 2299 2300 2301 2302 2303 2304 2305 2306 2307 2308 2309 2310 2311 2312 2313 2314 2315 2316 2317 2318 2319
		roce_set_field(context->qpc_bytes_68,
			       QP_CONTEXT_QPC_BYTES_68_RQ_CUR_INDEX_M,
			       QP_CONTEXT_QPC_BYTES_68_RQ_CUR_INDEX_S, 0);

		rq_pa_start = (u32)hr_qp->rq.offset / PAGE_SIZE;
		context->cur_rq_wqe_ba_l = (u32)(mtts[rq_pa_start]);

		roce_set_field(context->qpc_bytes_76,
			QP_CONTEXT_QPC_BYTES_76_CUR_RQ_WQE_BA_H_M,
			QP_CONTEXT_QPC_BYTES_76_CUR_RQ_WQE_BA_H_S,
			mtts[rq_pa_start] >> 32);
		roce_set_field(context->qpc_bytes_76,
			       QP_CONTEXT_QPC_BYTES_76_RX_REQ_MSN_M,
			       QP_CONTEXT_QPC_BYTES_76_RX_REQ_MSN_S, 0);

		context->rx_rnr_time = 0;

		roce_set_field(context->qpc_bytes_84,
			       QP_CONTEXT_QPC_BYTES_84_LAST_ACK_PSN_M,
			       QP_CONTEXT_QPC_BYTES_84_LAST_ACK_PSN_S,
			       attr->rq_psn - 1);
		roce_set_field(context->qpc_bytes_84,
			       QP_CONTEXT_QPC_BYTES_84_TRRL_HEAD_M,
			       QP_CONTEXT_QPC_BYTES_84_TRRL_HEAD_S, 0);

		roce_set_field(context->qpc_bytes_88,
			       QP_CONTEXT_QPC_BYTES_88_RX_REQ_EPSN_M,
			       QP_CONTEXT_QPC_BYTES_88_RX_REQ_EPSN_S,
			       attr->rq_psn);
		roce_set_bit(context->qpc_bytes_88,
			     QP_CONTEXT_QPC_BYTES_88_RX_REQ_PSN_ERR_FLAG_S, 0);
		roce_set_bit(context->qpc_bytes_88,
			     QP_CONTEXT_QPC_BYTES_88_RX_LAST_OPCODE_FLG_S, 0);
		roce_set_field(context->qpc_bytes_88,
			QP_CONTEXT_QPC_BYTES_88_RQ_REQ_LAST_OPERATION_TYPE_M,
			QP_CONTEXT_QPC_BYTES_88_RQ_REQ_LAST_OPERATION_TYPE_S,
			0);
		roce_set_field(context->qpc_bytes_88,
			       QP_CONTEXT_QPC_BYTES_88_RQ_REQ_RDMA_WR_FLAG_M,
			       QP_CONTEXT_QPC_BYTES_88_RQ_REQ_RDMA_WR_FLAG_S,
			       0);

		context->dma_length = 0;
		context->r_key = 0;
		context->va_l = 0;
		context->va_h = 0;

		roce_set_field(context->qpc_bytes_108,
			       QP_CONTEXT_QPC_BYTES_108_TRRL_SDB_PSN_M,
			       QP_CONTEXT_QPC_BYTES_108_TRRL_SDB_PSN_S, 0);
		roce_set_bit(context->qpc_bytes_108,
			     QP_CONTEXT_QPC_BYTES_108_TRRL_SDB_PSN_FLG_S, 0);
		roce_set_bit(context->qpc_bytes_108,
			     QP_CONTEXT_QPC_BYTES_108_TRRL_TDB_PSN_FLG_S, 0);

		roce_set_field(context->qpc_bytes_112,
			       QP_CONTEXT_QPC_BYTES_112_TRRL_TDB_PSN_M,
			       QP_CONTEXT_QPC_BYTES_112_TRRL_TDB_PSN_S, 0);
		roce_set_field(context->qpc_bytes_112,
			       QP_CONTEXT_QPC_BYTES_112_TRRL_TAIL_M,
			       QP_CONTEXT_QPC_BYTES_112_TRRL_TAIL_S, 0);

		/* For chip resp ack */
		roce_set_field(context->qpc_bytes_156,
			       QP_CONTEXT_QPC_BYTES_156_PORT_NUM_M,
			       QP_CONTEXT_QPC_BYTES_156_PORT_NUM_S,
2320
			       hr_qp->phy_port);
2321 2322 2323 2324 2325 2326 2327 2328 2329 2330 2331 2332 2333 2334 2335 2336 2337 2338 2339 2340 2341 2342 2343 2344 2345 2346 2347 2348 2349 2350 2351 2352 2353 2354 2355 2356 2357 2358 2359 2360 2361 2362 2363 2364 2365 2366 2367 2368 2369 2370 2371 2372 2373 2374 2375 2376 2377 2378 2379 2380 2381 2382 2383 2384 2385 2386 2387 2388 2389 2390 2391 2392 2393 2394 2395
		roce_set_field(context->qpc_bytes_156,
			       QP_CONTEXT_QPC_BYTES_156_SL_M,
			       QP_CONTEXT_QPC_BYTES_156_SL_S, attr->ah_attr.sl);
		hr_qp->sl = attr->ah_attr.sl;
	} else if (cur_state == IB_QPS_RTR &&
		new_state == IB_QPS_RTS) {
		/* 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 error\n");
			goto out;
		}

		context->rx_cur_sq_wqe_ba_l = (u32)(mtts[0]);

		roce_set_field(context->qpc_bytes_120,
			       QP_CONTEXT_QPC_BYTES_120_RX_CUR_SQ_WQE_BA_H_M,
			       QP_CONTEXT_QPC_BYTES_120_RX_CUR_SQ_WQE_BA_H_S,
			       (mtts[0]) >> 32);

		roce_set_field(context->qpc_bytes_124,
			       QP_CONTEXT_QPC_BYTES_124_RX_ACK_MSN_M,
			       QP_CONTEXT_QPC_BYTES_124_RX_ACK_MSN_S, 0);
		roce_set_field(context->qpc_bytes_124,
			       QP_CONTEXT_QPC_BYTES_124_IRRL_MSG_IDX_M,
			       QP_CONTEXT_QPC_BYTES_124_IRRL_MSG_IDX_S, 0);

		roce_set_field(context->qpc_bytes_128,
			       QP_CONTEXT_QPC_BYTES_128_RX_ACK_EPSN_M,
			       QP_CONTEXT_QPC_BYTES_128_RX_ACK_EPSN_S,
			       attr->sq_psn);
		roce_set_bit(context->qpc_bytes_128,
			     QP_CONTEXT_QPC_BYTES_128_RX_ACK_PSN_ERR_FLG_S, 0);
		roce_set_field(context->qpc_bytes_128,
			     QP_CONTEXT_QPC_BYTES_128_ACK_LAST_OPERATION_TYPE_M,
			     QP_CONTEXT_QPC_BYTES_128_ACK_LAST_OPERATION_TYPE_S,
			     0);
		roce_set_bit(context->qpc_bytes_128,
			     QP_CONTEXT_QPC_BYTES_128_IRRL_PSN_VLD_FLG_S, 0);

		roce_set_field(context->qpc_bytes_132,
			       QP_CONTEXT_QPC_BYTES_132_IRRL_PSN_M,
			       QP_CONTEXT_QPC_BYTES_132_IRRL_PSN_S, 0);
		roce_set_field(context->qpc_bytes_132,
			       QP_CONTEXT_QPC_BYTES_132_IRRL_TAIL_M,
			       QP_CONTEXT_QPC_BYTES_132_IRRL_TAIL_S, 0);

		roce_set_field(context->qpc_bytes_136,
			       QP_CONTEXT_QPC_BYTES_136_RETRY_MSG_PSN_M,
			       QP_CONTEXT_QPC_BYTES_136_RETRY_MSG_PSN_S,
			       attr->sq_psn);
		roce_set_field(context->qpc_bytes_136,
			       QP_CONTEXT_QPC_BYTES_136_RETRY_MSG_FPKT_PSN_L_M,
			       QP_CONTEXT_QPC_BYTES_136_RETRY_MSG_FPKT_PSN_L_S,
			       attr->sq_psn);

		roce_set_field(context->qpc_bytes_140,
			       QP_CONTEXT_QPC_BYTES_140_RETRY_MSG_FPKT_PSN_H_M,
			       QP_CONTEXT_QPC_BYTES_140_RETRY_MSG_FPKT_PSN_H_S,
			       (attr->sq_psn >> SQ_PSN_SHIFT));
		roce_set_field(context->qpc_bytes_140,
			       QP_CONTEXT_QPC_BYTES_140_RETRY_MSG_MSN_M,
			       QP_CONTEXT_QPC_BYTES_140_RETRY_MSG_MSN_S, 0);
		roce_set_bit(context->qpc_bytes_140,
			     QP_CONTEXT_QPC_BYTES_140_RNR_RETRY_FLG_S, 0);

		roce_set_field(context->qpc_bytes_148,
			       QP_CONTEXT_QPC_BYTES_148_CHECK_FLAG_M,
			       QP_CONTEXT_QPC_BYTES_148_CHECK_FLAG_S, 0);
		roce_set_field(context->qpc_bytes_148,
			       QP_CONTEXT_QPC_BYTES_148_RETRY_COUNT_M,
2396 2397
			       QP_CONTEXT_QPC_BYTES_148_RETRY_COUNT_S,
			       attr->retry_cnt);
2398 2399
		roce_set_field(context->qpc_bytes_148,
			       QP_CONTEXT_QPC_BYTES_148_RNR_RETRY_COUNT_M,
2400 2401
			       QP_CONTEXT_QPC_BYTES_148_RNR_RETRY_COUNT_S,
			       attr->rnr_retry);
2402 2403 2404 2405 2406 2407 2408 2409 2410 2411
		roce_set_field(context->qpc_bytes_148,
			       QP_CONTEXT_QPC_BYTES_148_LSN_M,
			       QP_CONTEXT_QPC_BYTES_148_LSN_S, 0x100);

		context->rnr_retry = 0;

		roce_set_field(context->qpc_bytes_156,
			       QP_CONTEXT_QPC_BYTES_156_RETRY_COUNT_INIT_M,
			       QP_CONTEXT_QPC_BYTES_156_RETRY_COUNT_INIT_S,
			       attr->retry_cnt);
2412 2413 2414 2415 2416 2417 2418 2419 2420 2421 2422 2423 2424
		if (attr->timeout < 0x12) {
			dev_info(dev, "ack timeout value(0x%x) must bigger than 0x12.\n",
				 attr->timeout);
			roce_set_field(context->qpc_bytes_156,
				       QP_CONTEXT_QPC_BYTES_156_ACK_TIMEOUT_M,
				       QP_CONTEXT_QPC_BYTES_156_ACK_TIMEOUT_S,
				       0x12);
		} else {
			roce_set_field(context->qpc_bytes_156,
				       QP_CONTEXT_QPC_BYTES_156_ACK_TIMEOUT_M,
				       QP_CONTEXT_QPC_BYTES_156_ACK_TIMEOUT_S,
				       attr->timeout);
		}
2425 2426 2427 2428 2429 2430 2431
		roce_set_field(context->qpc_bytes_156,
			       QP_CONTEXT_QPC_BYTES_156_RNR_RETRY_COUNT_INIT_M,
			       QP_CONTEXT_QPC_BYTES_156_RNR_RETRY_COUNT_INIT_S,
			       attr->rnr_retry);
		roce_set_field(context->qpc_bytes_156,
			       QP_CONTEXT_QPC_BYTES_156_PORT_NUM_M,
			       QP_CONTEXT_QPC_BYTES_156_PORT_NUM_S,
2432
			       hr_qp->phy_port);
2433 2434 2435 2436 2437 2438 2439 2440 2441 2442 2443 2444 2445 2446 2447 2448 2449 2450 2451 2452 2453 2454 2455 2456 2457 2458 2459 2460 2461 2462 2463 2464 2465 2466 2467 2468 2469 2470 2471 2472 2473 2474 2475 2476 2477 2478 2479 2480 2481 2482 2483 2484 2485 2486 2487 2488 2489 2490 2491 2492 2493 2494 2495 2496
		roce_set_field(context->qpc_bytes_156,
			       QP_CONTEXT_QPC_BYTES_156_SL_M,
			       QP_CONTEXT_QPC_BYTES_156_SL_S, attr->ah_attr.sl);
		hr_qp->sl = attr->ah_attr.sl;
		roce_set_field(context->qpc_bytes_156,
			       QP_CONTEXT_QPC_BYTES_156_INITIATOR_DEPTH_M,
			       QP_CONTEXT_QPC_BYTES_156_INITIATOR_DEPTH_S,
			       ilog2((unsigned int)attr->max_rd_atomic));
		roce_set_field(context->qpc_bytes_156,
			       QP_CONTEXT_QPC_BYTES_156_ACK_REQ_IND_M,
			       QP_CONTEXT_QPC_BYTES_156_ACK_REQ_IND_S, 0);
		context->pkt_use_len = 0;

		roce_set_field(context->qpc_bytes_164,
			       QP_CONTEXT_QPC_BYTES_164_SQ_PSN_M,
			       QP_CONTEXT_QPC_BYTES_164_SQ_PSN_S, attr->sq_psn);
		roce_set_field(context->qpc_bytes_164,
			       QP_CONTEXT_QPC_BYTES_164_IRRL_HEAD_M,
			       QP_CONTEXT_QPC_BYTES_164_IRRL_HEAD_S, 0);

		roce_set_field(context->qpc_bytes_168,
			       QP_CONTEXT_QPC_BYTES_168_RETRY_SQ_PSN_M,
			       QP_CONTEXT_QPC_BYTES_168_RETRY_SQ_PSN_S,
			       attr->sq_psn);
		roce_set_field(context->qpc_bytes_168,
			       QP_CONTEXT_QPC_BYTES_168_SGE_USE_FLA_M,
			       QP_CONTEXT_QPC_BYTES_168_SGE_USE_FLA_S, 0);
		roce_set_field(context->qpc_bytes_168,
			       QP_CONTEXT_QPC_BYTES_168_DB_TYPE_M,
			       QP_CONTEXT_QPC_BYTES_168_DB_TYPE_S, 0);
		roce_set_bit(context->qpc_bytes_168,
			     QP_CONTEXT_QPC_BYTES_168_MSG_LP_IND_S, 0);
		roce_set_bit(context->qpc_bytes_168,
			     QP_CONTEXT_QPC_BYTES_168_CSDB_LP_IND_S, 0);
		roce_set_bit(context->qpc_bytes_168,
			     QP_CONTEXT_QPC_BYTES_168_QP_ERR_FLG_S, 0);
		context->sge_use_len = 0;

		roce_set_field(context->qpc_bytes_176,
			       QP_CONTEXT_QPC_BYTES_176_DB_CUR_INDEX_M,
			       QP_CONTEXT_QPC_BYTES_176_DB_CUR_INDEX_S, 0);
		roce_set_field(context->qpc_bytes_176,
			       QP_CONTEXT_QPC_BYTES_176_RETRY_DB_CUR_INDEX_M,
			       QP_CONTEXT_QPC_BYTES_176_RETRY_DB_CUR_INDEX_S,
			       0);
		roce_set_field(context->qpc_bytes_180,
			       QP_CONTEXT_QPC_BYTES_180_SQ_CUR_INDEX_M,
			       QP_CONTEXT_QPC_BYTES_180_SQ_CUR_INDEX_S, 0);
		roce_set_field(context->qpc_bytes_180,
			       QP_CONTEXT_QPC_BYTES_180_SQ_HEAD_M,
			       QP_CONTEXT_QPC_BYTES_180_SQ_HEAD_S, 0);

		context->tx_cur_sq_wqe_ba_l = (u32)(mtts[0]);

		roce_set_field(context->qpc_bytes_188,
			       QP_CONTEXT_QPC_BYTES_188_TX_CUR_SQ_WQE_BA_H_M,
			       QP_CONTEXT_QPC_BYTES_188_TX_CUR_SQ_WQE_BA_H_S,
			       (mtts[0]) >> 32);
		roce_set_bit(context->qpc_bytes_188,
			     QP_CONTEXT_QPC_BYTES_188_PKT_RETRY_FLG_S, 0);
		roce_set_field(context->qpc_bytes_188,
			       QP_CONTEXT_QPC_BYTES_188_TX_RETRY_CUR_INDEX_M,
			       QP_CONTEXT_QPC_BYTES_188_TX_RETRY_CUR_INDEX_S,
			       0);
2497
	} else if (!((cur_state == IB_QPS_INIT && new_state == IB_QPS_RESET) ||
2498 2499 2500 2501 2502 2503
		   (cur_state == IB_QPS_INIT && new_state == IB_QPS_ERR) ||
		   (cur_state == IB_QPS_RTR && new_state == IB_QPS_RESET) ||
		   (cur_state == IB_QPS_RTR && new_state == IB_QPS_ERR) ||
		   (cur_state == IB_QPS_RTS && new_state == IB_QPS_RESET) ||
		   (cur_state == IB_QPS_RTS && new_state == IB_QPS_ERR) ||
		   (cur_state == IB_QPS_ERR && new_state == IB_QPS_RESET) ||
2504 2505
		   (cur_state == IB_QPS_ERR && new_state == IB_QPS_ERR))) {
		dev_err(dev, "not support this status migration\n");
2506 2507 2508 2509 2510 2511 2512 2513 2514 2515 2516 2517 2518 2519 2520 2521 2522 2523 2524 2525 2526 2527 2528 2529 2530 2531
		goto out;
	}

	/* Every status migrate must change state */
	roce_set_field(context->qpc_bytes_144,
		       QP_CONTEXT_QPC_BYTES_144_QP_STATE_M,
		       QP_CONTEXT_QPC_BYTES_144_QP_STATE_S, attr->qp_state);

	/* SW pass context to HW */
	ret = hns_roce_v1_qp_modify(hr_dev, &hr_qp->mtt,
				    to_hns_roce_state(cur_state),
				    to_hns_roce_state(new_state), context,
				    hr_qp);
	if (ret) {
		dev_err(dev, "hns_roce_qp_modify failed\n");
		goto out;
	}

	/*
	* Use rst2init to instead of init2init with drv,
	* need to hw to flash RQ HEAD by DB again
	*/
	if (cur_state == IB_QPS_INIT && new_state == IB_QPS_INIT) {
		/* Memory barrier */
		wmb();

2532 2533 2534 2535 2536 2537 2538 2539 2540 2541 2542 2543
		roce_set_field(doorbell[0], RQ_DOORBELL_U32_4_RQ_HEAD_M,
			       RQ_DOORBELL_U32_4_RQ_HEAD_S, hr_qp->rq.head);
		roce_set_field(doorbell[1], RQ_DOORBELL_U32_8_QPN_M,
			       RQ_DOORBELL_U32_8_QPN_S, hr_qp->qpn);
		roce_set_field(doorbell[1], RQ_DOORBELL_U32_8_CMD_M,
			       RQ_DOORBELL_U32_8_CMD_S, 1);
		roce_set_bit(doorbell[1], RQ_DOORBELL_U32_8_HW_SYNC_S, 1);

		if (ibqp->uobject) {
			hr_qp->rq.db_reg_l = hr_dev->reg_base +
				     ROCEE_DB_OTHERS_L_0_REG +
				     DB_REG_OFFSET * hr_dev->priv_uar.index;
2544
		}
2545 2546

		hns_roce_write64_k(doorbell, hr_qp->rq.db_reg_l);
2547 2548 2549 2550 2551 2552
	}

	hr_qp->state = new_state;

	if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC)
		hr_qp->resp_depth = attr->max_dest_rd_atomic;
2553 2554 2555 2556
	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];
	}
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	if (new_state == IB_QPS_RESET && !ibqp->uobject) {
		hns_roce_v1_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_v1_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;
	}
out:
	kfree(context);
	return ret;
}

int hns_roce_v1_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)
{

	if (ibqp->qp_type == IB_QPT_GSI || ibqp->qp_type == IB_QPT_SMI)
		return hns_roce_v1_m_sqp(ibqp, attr, attr_mask, cur_state,
					 new_state);
	else
		return hns_roce_v1_m_qp(ibqp, attr, attr_mask, cur_state,
					new_state);
}

static enum ib_qp_state to_ib_qp_state(enum hns_roce_qp_state state)
{
	switch (state) {
	case HNS_ROCE_QP_STATE_RST:
		return IB_QPS_RESET;
	case HNS_ROCE_QP_STATE_INIT:
		return IB_QPS_INIT;
	case HNS_ROCE_QP_STATE_RTR:
		return IB_QPS_RTR;
	case HNS_ROCE_QP_STATE_RTS:
		return IB_QPS_RTS;
	case HNS_ROCE_QP_STATE_SQD:
		return IB_QPS_SQD;
	case HNS_ROCE_QP_STATE_ERR:
		return IB_QPS_ERR;
	default:
		return IB_QPS_ERR;
	}
}

static int hns_roce_v1_query_qpc(struct hns_roce_dev *hr_dev,
				 struct hns_roce_qp *hr_qp,
				 struct hns_roce_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_QP,
				HNS_ROCE_CMD_TIME_CLASS_A);
	if (!ret)
		memcpy(hr_context, mailbox->buf, sizeof(*hr_context));
	else
		dev_err(&hr_dev->pdev->dev, "QUERY QP cmd process error\n");

	hns_roce_free_cmd_mailbox(hr_dev, mailbox);

	return ret;
}

int hns_roce_v1_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 device *dev = &hr_dev->pdev->dev;
	struct hns_roce_qp_context *context;
	int tmp_qp_state = 0;
	int ret = 0;
	int state;

	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_v1_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->qpc_bytes_144,
			       QP_CONTEXT_QPC_BYTES_144_QP_STATE_M,
			       QP_CONTEXT_QPC_BYTES_144_QP_STATE_S);
	tmp_qp_state = (int)to_ib_qp_state((enum hns_roce_qp_state)state);
	if (tmp_qp_state == -1) {
		dev_err(dev, "to_ib_qp_state error\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->qpc_bytes_48,
					       QP_CONTEXT_QPC_BYTES_48_MTU_M,
					       QP_CONTEXT_QPC_BYTES_48_MTU_S);
	qp_attr->path_mig_state = IB_MIG_ARMED;
	if (hr_qp->ibqp.qp_type == IB_QPT_UD)
		qp_attr->qkey = QKEY_VAL;

	qp_attr->rq_psn = roce_get_field(context->qpc_bytes_88,
					 QP_CONTEXT_QPC_BYTES_88_RX_REQ_EPSN_M,
					 QP_CONTEXT_QPC_BYTES_88_RX_REQ_EPSN_S);
	qp_attr->sq_psn = (u32)roce_get_field(context->qpc_bytes_164,
					     QP_CONTEXT_QPC_BYTES_164_SQ_PSN_M,
					     QP_CONTEXT_QPC_BYTES_164_SQ_PSN_S);
	qp_attr->dest_qp_num = (u8)roce_get_field(context->qpc_bytes_36,
					QP_CONTEXT_QPC_BYTES_36_DEST_QP_M,
					QP_CONTEXT_QPC_BYTES_36_DEST_QP_S);
	qp_attr->qp_access_flags = ((roce_get_bit(context->qpc_bytes_4,
			QP_CONTEXT_QPC_BYTE_4_RDMA_READ_ENABLE_S)) << 2) |
				   ((roce_get_bit(context->qpc_bytes_4,
			QP_CONTEXT_QPC_BYTE_4_RDMA_WRITE_ENABLE_S)) << 1) |
				   ((roce_get_bit(context->qpc_bytes_4,
			QP_CONTEXT_QPC_BYTE_4_ATOMIC_OPERATION_ENABLE_S)) << 3);

	if (hr_qp->ibqp.qp_type == IB_QPT_RC ||
	    hr_qp->ibqp.qp_type == IB_QPT_UC) {
		qp_attr->ah_attr.sl = roce_get_field(context->qpc_bytes_156,
						QP_CONTEXT_QPC_BYTES_156_SL_M,
						QP_CONTEXT_QPC_BYTES_156_SL_S);
		qp_attr->ah_attr.grh.flow_label = roce_get_field(
					context->qpc_bytes_48,
					QP_CONTEXT_QPC_BYTES_48_FLOWLABEL_M,
					QP_CONTEXT_QPC_BYTES_48_FLOWLABEL_S);
		qp_attr->ah_attr.grh.sgid_index = roce_get_field(
					context->qpc_bytes_36,
					QP_CONTEXT_QPC_BYTES_36_SGID_INDEX_M,
					QP_CONTEXT_QPC_BYTES_36_SGID_INDEX_S);
		qp_attr->ah_attr.grh.hop_limit = roce_get_field(
					context->qpc_bytes_44,
					QP_CONTEXT_QPC_BYTES_44_HOPLMT_M,
					QP_CONTEXT_QPC_BYTES_44_HOPLMT_S);
		qp_attr->ah_attr.grh.traffic_class = roce_get_field(
					context->qpc_bytes_48,
					QP_CONTEXT_QPC_BYTES_48_TCLASS_M,
					QP_CONTEXT_QPC_BYTES_48_TCLASS_S);

		memcpy(qp_attr->ah_attr.grh.dgid.raw, context->dgid,
		       sizeof(qp_attr->ah_attr.grh.dgid.raw));
	}

	qp_attr->pkey_index = roce_get_field(context->qpc_bytes_12,
			      QP_CONTEXT_QPC_BYTES_12_P_KEY_INDEX_M,
			      QP_CONTEXT_QPC_BYTES_12_P_KEY_INDEX_S);
	qp_attr->port_num = (u8)roce_get_field(context->qpc_bytes_156,
			     QP_CONTEXT_QPC_BYTES_156_PORT_NUM_M,
			     QP_CONTEXT_QPC_BYTES_156_PORT_NUM_S) + 1;
	qp_attr->sq_draining = 0;
	qp_attr->max_rd_atomic = roce_get_field(context->qpc_bytes_156,
				 QP_CONTEXT_QPC_BYTES_156_INITIATOR_DEPTH_M,
				 QP_CONTEXT_QPC_BYTES_156_INITIATOR_DEPTH_S);
	qp_attr->max_dest_rd_atomic = roce_get_field(context->qpc_bytes_32,
				 QP_CONTEXT_QPC_BYTES_32_RESPONDER_RESOURCES_M,
				 QP_CONTEXT_QPC_BYTES_32_RESPONDER_RESOURCES_S);
	qp_attr->min_rnr_timer = (u8)(roce_get_field(context->qpc_bytes_24,
			QP_CONTEXT_QPC_BYTES_24_MINIMUM_RNR_NAK_TIMER_M,
			QP_CONTEXT_QPC_BYTES_24_MINIMUM_RNR_NAK_TIMER_S));
	qp_attr->timeout = (u8)(roce_get_field(context->qpc_bytes_156,
			    QP_CONTEXT_QPC_BYTES_156_ACK_TIMEOUT_M,
			    QP_CONTEXT_QPC_BYTES_156_ACK_TIMEOUT_S));
	qp_attr->retry_cnt = roce_get_field(context->qpc_bytes_148,
			     QP_CONTEXT_QPC_BYTES_148_RETRY_COUNT_M,
			     QP_CONTEXT_QPC_BYTES_148_RETRY_COUNT_S);
	qp_attr->rnr_retry = context->rnr_retry;

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 void hns_roce_v1_destroy_qp_common(struct hns_roce_dev *hr_dev,
					  struct hns_roce_qp *hr_qp,
					  int is_user)
{
	u32 sdbinvcnt;
	unsigned long end = 0;
	u32 sdbinvcnt_val;
	u32 sdbsendptr_val;
	u32 sdbisusepr_val;
	struct hns_roce_cq *send_cq, *recv_cq;
	struct device *dev = &hr_dev->pdev->dev;

	if (hr_qp->ibqp.qp_type == IB_QPT_RC) {
		if (hr_qp->state != IB_QPS_RESET) {
			/*
			* Set qp to ERR,
			* waiting for hw complete processing all dbs
			*/
			if (hns_roce_v1_qp_modify(hr_dev, NULL,
					to_hns_roce_state(
						(enum ib_qp_state)hr_qp->state),
						HNS_ROCE_QP_STATE_ERR, NULL,
						hr_qp))
				dev_err(dev, "modify QP %06lx to ERR failed.\n",
					hr_qp->qpn);

			/* Record issued doorbell */
			sdbisusepr_val = roce_read(hr_dev,
					 ROCEE_SDB_ISSUE_PTR_REG);
			/*
			* Query db process status,
			* until hw process completely
			*/
			end = msecs_to_jiffies(
			      HNS_ROCE_QP_DESTROY_TIMEOUT_MSECS) + jiffies;
			do {
				sdbsendptr_val = roce_read(hr_dev,
						 ROCEE_SDB_SEND_PTR_REG);
				if (!time_before(jiffies, end)) {
					dev_err(dev, "destroy qp(0x%lx) timeout!!!",
						hr_qp->qpn);
					break;
				}
			} while ((short)(roce_get_field(sdbsendptr_val,
					ROCEE_SDB_SEND_PTR_SDB_SEND_PTR_M,
					ROCEE_SDB_SEND_PTR_SDB_SEND_PTR_S) -
				roce_get_field(sdbisusepr_val,
					ROCEE_SDB_ISSUE_PTR_SDB_ISSUE_PTR_M,
					ROCEE_SDB_ISSUE_PTR_SDB_ISSUE_PTR_S)
				) < 0);

			/* Get list pointer */
			sdbinvcnt = roce_read(hr_dev, ROCEE_SDB_INV_CNT_REG);

			/* Query db's list status, until hw reversal */
			do {
				sdbinvcnt_val = roce_read(hr_dev,
						ROCEE_SDB_INV_CNT_REG);
				if (!time_before(jiffies, end)) {
					dev_err(dev, "destroy qp(0x%lx) timeout!!!",
						hr_qp->qpn);
					dev_err(dev, "SdbInvCnt = 0x%x\n",
						sdbinvcnt_val);
					break;
				}
			} while ((short)(roce_get_field(sdbinvcnt_val,
				  ROCEE_SDB_INV_CNT_SDB_INV_CNT_M,
				  ROCEE_SDB_INV_CNT_SDB_INV_CNT_S) -
				  (sdbinvcnt + SDB_INV_CNT_OFFSET)) < 0);

			/* Modify qp to reset before destroying qp */
			if (hns_roce_v1_qp_modify(hr_dev, NULL,
					to_hns_roce_state(
					(enum ib_qp_state)hr_qp->state),
					HNS_ROCE_QP_STATE_RST, NULL, hr_qp))
				dev_err(dev, "modify QP %06lx to RESET failed.\n",
					hr_qp->qpn);
		}
	}

	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_v1_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_v1_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);
	}
}

int hns_roce_v1_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);

	hns_roce_v1_destroy_qp_common(hr_dev, hr_qp, !!ibqp->pd->uobject);

	if (hr_qp->ibqp.qp_type == IB_QPT_GSI)
		kfree(hr_to_hr_sqp(hr_qp));
	else
		kfree(hr_qp);

	return 0;
}

struct hns_roce_v1_priv hr_v1_priv;

struct hns_roce_hw hns_roce_hw_v1 = {
	.reset = hns_roce_v1_reset,
	.hw_profile = hns_roce_v1_profile,
	.hw_init = hns_roce_v1_init,
	.hw_exit = hns_roce_v1_exit,
	.set_gid = hns_roce_v1_set_gid,
	.set_mac = hns_roce_v1_set_mac,
	.set_mtu = hns_roce_v1_set_mtu,
	.write_mtpt = hns_roce_v1_write_mtpt,
	.write_cqc = hns_roce_v1_write_cqc,
W
Wei Hu (Xavier) 已提交
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	.clear_hem = hns_roce_v1_clear_hem,
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	.modify_qp = hns_roce_v1_modify_qp,
	.query_qp = hns_roce_v1_query_qp,
	.destroy_qp = hns_roce_v1_destroy_qp,
	.post_send = hns_roce_v1_post_send,
	.post_recv = hns_roce_v1_post_recv,
	.req_notify_cq = hns_roce_v1_req_notify_cq,
	.poll_cq = hns_roce_v1_poll_cq,
	.priv = &hr_v1_priv,
};