diff options
Diffstat (limited to 'drivers/infiniband/hw/hns/hns_roce_hw_v1.c')
| -rw-r--r-- | drivers/infiniband/hw/hns/hns_roce_hw_v1.c | 5068 |
1 files changed, 5068 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v1.c b/drivers/infiniband/hw/hns/hns_roce_hw_v1.c new file mode 100644 index 000000000..620eaca2b --- /dev/null +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v1.c @@ -0,0 +1,5068 @@ +/* + * 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> +#include <linux/acpi.h> +#include <linux/etherdevice.h> +#include <linux/interrupt.h> +#include <linux/of.h> +#include <linux/of_platform.h> +#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; +} + +static int hns_roce_v1_post_send(struct ib_qp *ibqp, + const struct ib_send_wr *wr, + const 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; + u8 *smac; + int loopback; + + 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; + } + + spin_lock_irqsave(&qp->sq.lock, flags); + 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]); + + smac = (u8 *)hr_dev->dev_addr[qp->port]; + loopback = ether_addr_equal_unaligned(ah->av.mac, + smac) ? 1 : 0; + roce_set_bit(ud_sq_wqe->u32_8, + UD_SEND_WQE_U32_8_LOOPBACK_INDICATOR_S, + loopback); + + 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, + ah->av.sl_tclass_flowlabel & + HNS_ROCE_FLOW_LABEL_MASK); + roce_set_field(ud_sq_wqe->u32_36, + UD_SEND_WQE_U32_36_PRIORITY_M, + UD_SEND_WQE_U32_36_PRIORITY_S, + le32_to_cpu(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, + hns_get_gid_index(hr_dev, qp->phy_port, + 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, + ah->av.sl_tclass_flowlabel >> + HNS_ROCE_TCLASS_SHIFT); + + memcpy(&ud_sq_wqe->dgid[0], &ah->av.dgid[0], GID_LEN); + + ud_sq_wqe->va0_l = + cpu_to_le32((u32)wr->sg_list[0].addr); + ud_sq_wqe->va0_h = + cpu_to_le32((wr->sg_list[0].addr) >> 32); + ud_sq_wqe->l_key0 = + cpu_to_le32(wr->sg_list[0].lkey); + + ud_sq_wqe->va1_l = + cpu_to_le32((u32)wr->sg_list[1].addr); + ud_sq_wqe->va1_h = + cpu_to_le32((wr->sg_list[1].addr) >> 32); + ud_sq_wqe->l_key1 = + cpu_to_le32(wr->sg_list[1].lkey); + ind++; + } else if (ibqp->qp_type == IB_QPT_RC) { + u32 tmp_len = 0; + + ctrl = wqe; + memset(ctrl, 0, sizeof(struct hns_roce_wqe_ctrl_seg)); + for (i = 0; i < wr->num_sge; i++) + tmp_len += wr->sg_list[i].length; + + ctrl->msg_length = + cpu_to_le32(le32_to_cpu(ctrl->msg_length) + tmp_len); + + ctrl->sgl_pa_h = 0; + ctrl->flag = 0; + + switch (wr->opcode) { + case IB_WR_SEND_WITH_IMM: + case IB_WR_RDMA_WRITE_WITH_IMM: + ctrl->imm_data = wr->ex.imm_data; + break; + case IB_WR_SEND_WITH_INV: + ctrl->inv_key = + cpu_to_le32(wr->ex.invalidate_rkey); + break; + default: + ctrl->imm_data = 0; + break; + } + + /*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); + + wqe += sizeof(struct hns_roce_wqe_ctrl_seg); + + switch (wr->opcode) { + case IB_WR_RDMA_READ: + ps_opcode = HNS_ROCE_WQE_OPCODE_RDMA_READ; + set_raddr_seg(wqe, rdma_wr(wr)->remote_addr, + rdma_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, rdma_wr(wr)->remote_addr, + rdma_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: + 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); + wqe += sizeof(struct hns_roce_wqe_raddr_seg); + + dseg = wqe; + if (wr->send_flags & IB_SEND_INLINE && wr->num_sge) { + if (le32_to_cpu(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); + wqe += wr->sg_list[i].length; + } + ctrl->flag |= cpu_to_le32(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_SL_M, + SQ_DOORBELL_U32_4_SL_S, qp->sl); + roce_set_field(sq_db.u32_4, SQ_DOORBELL_U32_4_PORT_M, + SQ_DOORBELL_U32_4_PORT_S, qp->phy_port); + 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] = le32_to_cpu(sq_db.u32_4); + doorbell[1] = le32_to_cpu(sq_db.u32_8); + + hns_roce_write64_k((__le32 *)doorbell, qp->sq.db_reg_l); + qp->sq_next_wqe = ind; + } + + spin_unlock_irqrestore(&qp->sq.lock, flags); + + return ret; +} + +static int hns_roce_v1_post_recv(struct ib_qp *ibqp, + const struct ib_recv_wr *wr, + const struct ib_recv_wr **bad_wr) +{ + int ret = 0; + int nreq = 0; + int ind = 0; + int i = 0; + u32 reg_val; + 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) { + __le32 tmp; + + /* SW update GSI rq header */ + reg_val = roce_read(to_hr_dev(ibqp->device), + ROCEE_QP1C_CFG3_0_REG + + QP1C_CFGN_OFFSET * hr_qp->phy_port); + tmp = cpu_to_le32(reg_val); + roce_set_field(tmp, + ROCEE_QP1C_CFG3_0_ROCEE_QP1C_RQ_HEAD_M, + ROCEE_QP1C_CFG3_0_ROCEE_QP1C_RQ_HEAD_S, + hr_qp->rq.head); + reg_val = le32_to_cpu(tmp); + roce_write(to_hr_dev(ibqp->device), + ROCEE_QP1C_CFG3_0_REG + + QP1C_CFGN_OFFSET * hr_qp->phy_port, reg_val); + } 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] = le32_to_cpu(rq_db.u32_4); + doorbell[1] = le32_to_cpu(rq_db.u32_8); + + hns_roce_write64_k((__le32 *)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) +{ + __le32 tmp; + u32 val; + + val = roce_read(hr_dev, ROCEE_GLB_CFG_REG); + tmp = cpu_to_le32(val); + roce_set_bit(tmp, ROCEE_GLB_CFG_ROCEE_DB_SQ_MODE_S, sdb_mode); + roce_set_bit(tmp, ROCEE_GLB_CFG_ROCEE_DB_OTH_MODE_S, odb_mode); + val = le32_to_cpu(tmp); + 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) +{ + __le32 tmp; + u32 val; + + /* Configure SDB/ODB extend mode */ + val = roce_read(hr_dev, ROCEE_GLB_CFG_REG); + tmp = cpu_to_le32(val); + roce_set_bit(tmp, ROCEE_GLB_CFG_SQ_EXT_DB_MODE_S, sdb_mode); + roce_set_bit(tmp, ROCEE_GLB_CFG_OTH_EXT_DB_MODE_S, odb_mode); + val = le32_to_cpu(tmp); + 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) +{ + __le32 tmp; + u32 val; + + /* Configure SDB */ + val = roce_read(hr_dev, ROCEE_DB_SQ_WL_REG); + tmp = cpu_to_le32(val); + roce_set_field(tmp, ROCEE_DB_SQ_WL_ROCEE_DB_SQ_WL_M, + ROCEE_DB_SQ_WL_ROCEE_DB_SQ_WL_S, sdb_alful); + roce_set_field(tmp, ROCEE_DB_SQ_WL_ROCEE_DB_SQ_WL_EMPTY_M, + ROCEE_DB_SQ_WL_ROCEE_DB_SQ_WL_EMPTY_S, sdb_alept); + val = le32_to_cpu(tmp); + 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) +{ + __le32 tmp; + u32 val; + + /* Configure ODB */ + val = roce_read(hr_dev, ROCEE_DB_OTHERS_WL_REG); + tmp = cpu_to_le32(val); + roce_set_field(tmp, ROCEE_DB_OTHERS_WL_ROCEE_DB_OTH_WL_M, + ROCEE_DB_OTHERS_WL_ROCEE_DB_OTH_WL_S, odb_alful); + roce_set_field(tmp, ROCEE_DB_OTHERS_WL_ROCEE_DB_OTH_WL_EMPTY_M, + ROCEE_DB_OTHERS_WL_ROCEE_DB_OTH_WL_EMPTY_S, odb_alept); + val = le32_to_cpu(tmp); + 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; + __le32 tmp; + u32 val; + + priv = (struct hns_roce_v1_priv *)hr_dev->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); + tmp = cpu_to_le32(val); + roce_set_field(tmp, 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(tmp, 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); + val = le32_to_cpu(tmp); + 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; + __le32 tmp; + u32 val; + + priv = (struct hns_roce_v1_priv *)hr_dev->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); + tmp = cpu_to_le32(val); + roce_set_field(tmp, 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(tmp, 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); + val = le32_to_cpu(tmp); + 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->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 struct hns_roce_qp *hns_roce_v1_create_lp_qp(struct hns_roce_dev *hr_dev, + struct ib_pd *pd) +{ + struct device *dev = &hr_dev->pdev->dev; + struct ib_qp_init_attr init_attr; + struct ib_qp *qp; + + memset(&init_attr, 0, sizeof(struct ib_qp_init_attr)); + init_attr.qp_type = IB_QPT_RC; + init_attr.sq_sig_type = IB_SIGNAL_ALL_WR; + init_attr.cap.max_recv_wr = HNS_ROCE_MIN_WQE_NUM; + init_attr.cap.max_send_wr = HNS_ROCE_MIN_WQE_NUM; + + qp = hns_roce_create_qp(pd, &init_attr, NULL); + if (IS_ERR(qp)) { + dev_err(dev, "Create loop qp for mr free failed!"); + return NULL; + } + + return to_hr_qp(qp); +} + +static int hns_roce_v1_rsv_lp_qp(struct hns_roce_dev *hr_dev) +{ + struct hns_roce_caps *caps = &hr_dev->caps; + struct device *dev = &hr_dev->pdev->dev; + struct ib_cq_init_attr cq_init_attr; + struct hns_roce_free_mr *free_mr; + struct ib_qp_attr attr = { 0 }; + struct hns_roce_v1_priv *priv; + struct hns_roce_qp *hr_qp; + struct ib_cq *cq; + struct ib_pd *pd; + union ib_gid dgid; + u64 subnet_prefix; + int attr_mask = 0; + int i, j; + int ret; + u8 queue_en[HNS_ROCE_V1_RESV_QP] = { 0 }; + u8 phy_port; + u8 port = 0; + u8 sl; + + priv = (struct hns_roce_v1_priv *)hr_dev->priv; + free_mr = &priv->free_mr; + + /* Reserved cq for loop qp */ + cq_init_attr.cqe = HNS_ROCE_MIN_WQE_NUM * 2; + cq_init_attr.comp_vector = 0; + cq = hns_roce_ib_create_cq(&hr_dev->ib_dev, &cq_init_attr, NULL, NULL); + if (IS_ERR(cq)) { + dev_err(dev, "Create cq for reseved loop qp failed!"); + return -ENOMEM; + } + free_mr->mr_free_cq = to_hr_cq(cq); + free_mr->mr_free_cq->ib_cq.device = &hr_dev->ib_dev; + free_mr->mr_free_cq->ib_cq.uobject = NULL; + free_mr->mr_free_cq->ib_cq.comp_handler = NULL; + free_mr->mr_free_cq->ib_cq.event_handler = NULL; + free_mr->mr_free_cq->ib_cq.cq_context = NULL; + atomic_set(&free_mr->mr_free_cq->ib_cq.usecnt, 0); + + pd = hns_roce_alloc_pd(&hr_dev->ib_dev, NULL, NULL); + if (IS_ERR(pd)) { + dev_err(dev, "Create pd for reseved loop qp failed!"); + ret = -ENOMEM; + goto alloc_pd_failed; + } + free_mr->mr_free_pd = to_hr_pd(pd); + free_mr->mr_free_pd->ibpd.device = &hr_dev->ib_dev; + free_mr->mr_free_pd->ibpd.uobject = NULL; + free_mr->mr_free_pd->ibpd.__internal_mr = NULL; + atomic_set(&free_mr->mr_free_pd->ibpd.usecnt, 0); + + attr.qp_access_flags = IB_ACCESS_REMOTE_WRITE; + attr.pkey_index = 0; + attr.min_rnr_timer = 0; + /* Disable read ability */ + attr.max_dest_rd_atomic = 0; + attr.max_rd_atomic = 0; + /* Use arbitrary values as rq_psn and sq_psn */ + attr.rq_psn = 0x0808; + attr.sq_psn = 0x0808; + attr.retry_cnt = 7; + attr.rnr_retry = 7; + attr.timeout = 0x12; + attr.path_mtu = IB_MTU_256; + attr.ah_attr.type = RDMA_AH_ATTR_TYPE_ROCE; + rdma_ah_set_grh(&attr.ah_attr, NULL, 0, 0, 1, 0); + rdma_ah_set_static_rate(&attr.ah_attr, 3); + + subnet_prefix = cpu_to_be64(0xfe80000000000000LL); + for (i = 0; i < HNS_ROCE_V1_RESV_QP; i++) { + phy_port = (i >= HNS_ROCE_MAX_PORTS) ? (i - 2) : + (i % HNS_ROCE_MAX_PORTS); + sl = i / HNS_ROCE_MAX_PORTS; + + for (j = 0; j < caps->num_ports; j++) { + if (hr_dev->iboe.phy_port[j] == phy_port) { + queue_en[i] = 1; + port = j; + break; + } + } + + if (!queue_en[i]) + continue; + + free_mr->mr_free_qp[i] = hns_roce_v1_create_lp_qp(hr_dev, pd); + if (!free_mr->mr_free_qp[i]) { + dev_err(dev, "Create loop qp failed!\n"); + ret = -ENOMEM; + goto create_lp_qp_failed; + } + hr_qp = free_mr->mr_free_qp[i]; + + hr_qp->port = port; + hr_qp->phy_port = phy_port; + hr_qp->ibqp.qp_type = IB_QPT_RC; + hr_qp->ibqp.device = &hr_dev->ib_dev; + hr_qp->ibqp.uobject = NULL; + atomic_set(&hr_qp->ibqp.usecnt, 0); + hr_qp->ibqp.pd = pd; + hr_qp->ibqp.recv_cq = cq; + hr_qp->ibqp.send_cq = cq; + + rdma_ah_set_port_num(&attr.ah_attr, port + 1); + rdma_ah_set_sl(&attr.ah_attr, sl); + attr.port_num = port + 1; + + attr.dest_qp_num = hr_qp->qpn; + memcpy(rdma_ah_retrieve_dmac(&attr.ah_attr), + hr_dev->dev_addr[port], + MAC_ADDR_OCTET_NUM); + + memcpy(&dgid.raw, &subnet_prefix, sizeof(u64)); + memcpy(&dgid.raw[8], hr_dev->dev_addr[port], 3); + memcpy(&dgid.raw[13], hr_dev->dev_addr[port] + 3, 3); + dgid.raw[11] = 0xff; + dgid.raw[12] = 0xfe; + dgid.raw[8] ^= 2; + rdma_ah_set_dgid_raw(&attr.ah_attr, dgid.raw); + + ret = hr_dev->hw->modify_qp(&hr_qp->ibqp, &attr, attr_mask, + IB_QPS_RESET, IB_QPS_INIT); + if (ret) { + dev_err(dev, "modify qp failed(%d)!\n", ret); + goto create_lp_qp_failed; + } + + ret = hr_dev->hw->modify_qp(&hr_qp->ibqp, &attr, IB_QP_DEST_QPN, + IB_QPS_INIT, IB_QPS_RTR); + if (ret) { + dev_err(dev, "modify qp failed(%d)!\n", ret); + goto create_lp_qp_failed; + } + + ret = hr_dev->hw->modify_qp(&hr_qp->ibqp, &attr, attr_mask, + IB_QPS_RTR, IB_QPS_RTS); + if (ret) { + dev_err(dev, "modify qp failed(%d)!\n", ret); + goto create_lp_qp_failed; + } + } + + return 0; + +create_lp_qp_failed: + for (i -= 1; i >= 0; i--) { + hr_qp = free_mr->mr_free_qp[i]; + if (hns_roce_v1_destroy_qp(&hr_qp->ibqp)) + dev_err(dev, "Destroy qp %d for mr free failed!\n", i); + } + + if (hns_roce_dealloc_pd(pd)) + dev_err(dev, "Destroy pd for create_lp_qp failed!\n"); + +alloc_pd_failed: + if (hns_roce_ib_destroy_cq(cq)) + dev_err(dev, "Destroy cq for create_lp_qp failed!\n"); + + return ret; +} + +static void hns_roce_v1_release_lp_qp(struct hns_roce_dev *hr_dev) +{ + struct device *dev = &hr_dev->pdev->dev; + struct hns_roce_free_mr *free_mr; + struct hns_roce_v1_priv *priv; + struct hns_roce_qp *hr_qp; + int ret; + int i; + + priv = (struct hns_roce_v1_priv *)hr_dev->priv; + free_mr = &priv->free_mr; + + for (i = 0; i < HNS_ROCE_V1_RESV_QP; i++) { + hr_qp = free_mr->mr_free_qp[i]; + if (!hr_qp) + continue; + + ret = hns_roce_v1_destroy_qp(&hr_qp->ibqp); + if (ret) + dev_err(dev, "Destroy qp %d for mr free failed(%d)!\n", + i, ret); + } + + ret = hns_roce_ib_destroy_cq(&free_mr->mr_free_cq->ib_cq); + if (ret) + dev_err(dev, "Destroy cq for mr_free failed(%d)!\n", ret); + + ret = hns_roce_dealloc_pd(&free_mr->mr_free_pd->ibpd); + if (ret) + dev_err(dev, "Destroy pd for mr_free failed(%d)!\n", 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->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_v1_recreate_lp_qp_work_fn(struct work_struct *work) +{ + struct hns_roce_recreate_lp_qp_work *lp_qp_work; + struct hns_roce_dev *hr_dev; + + lp_qp_work = container_of(work, struct hns_roce_recreate_lp_qp_work, + work); + hr_dev = to_hr_dev(lp_qp_work->ib_dev); + + hns_roce_v1_release_lp_qp(hr_dev); + + if (hns_roce_v1_rsv_lp_qp(hr_dev)) + dev_err(&hr_dev->pdev->dev, "create reserver qp failed\n"); + + if (lp_qp_work->comp_flag) + complete(lp_qp_work->comp); + + kfree(lp_qp_work); +} + +static int hns_roce_v1_recreate_lp_qp(struct hns_roce_dev *hr_dev) +{ + struct device *dev = &hr_dev->pdev->dev; + struct hns_roce_recreate_lp_qp_work *lp_qp_work; + struct hns_roce_free_mr *free_mr; + struct hns_roce_v1_priv *priv; + struct completion comp; + unsigned long end = + msecs_to_jiffies(HNS_ROCE_V1_RECREATE_LP_QP_TIMEOUT_MSECS) + jiffies; + + priv = (struct hns_roce_v1_priv *)hr_dev->priv; + free_mr = &priv->free_mr; + + lp_qp_work = kzalloc(sizeof(struct hns_roce_recreate_lp_qp_work), + GFP_KERNEL); + if (!lp_qp_work) + return -ENOMEM; + + INIT_WORK(&(lp_qp_work->work), hns_roce_v1_recreate_lp_qp_work_fn); + + lp_qp_work->ib_dev = &(hr_dev->ib_dev); + lp_qp_work->comp = ∁ + lp_qp_work->comp_flag = 1; + + init_completion(lp_qp_work->comp); + + queue_work(free_mr->free_mr_wq, &(lp_qp_work->work)); + + while (time_before_eq(jiffies, end)) { + if (try_wait_for_completion(&comp)) + return 0; + msleep(HNS_ROCE_V1_RECREATE_LP_QP_WAIT_VALUE); + } + + lp_qp_work->comp_flag = 0; + if (try_wait_for_completion(&comp)) + return 0; + + dev_warn(dev, "recreate lp qp failed 20s timeout and return failed!\n"); + return -ETIMEDOUT; +} + +static int hns_roce_v1_send_lp_wqe(struct hns_roce_qp *hr_qp) +{ + struct hns_roce_dev *hr_dev = to_hr_dev(hr_qp->ibqp.device); + struct device *dev = &hr_dev->pdev->dev; + struct ib_send_wr send_wr; + const struct ib_send_wr *bad_wr; + int ret; + + memset(&send_wr, 0, sizeof(send_wr)); + send_wr.next = NULL; + send_wr.num_sge = 0; + send_wr.send_flags = 0; + send_wr.sg_list = NULL; + send_wr.wr_id = (unsigned long long)&send_wr; + send_wr.opcode = IB_WR_RDMA_WRITE; + + ret = hns_roce_v1_post_send(&hr_qp->ibqp, &send_wr, &bad_wr); + if (ret) { + dev_err(dev, "Post write wqe for mr free failed(%d)!", ret); + return ret; + } + + return 0; +} + +static void hns_roce_v1_mr_free_work_fn(struct work_struct *work) +{ + struct hns_roce_mr_free_work *mr_work; + struct ib_wc wc[HNS_ROCE_V1_RESV_QP]; + struct hns_roce_free_mr *free_mr; + struct hns_roce_cq *mr_free_cq; + struct hns_roce_v1_priv *priv; + struct hns_roce_dev *hr_dev; + struct hns_roce_mr *hr_mr; + struct hns_roce_qp *hr_qp; + struct device *dev; + unsigned long end = + msecs_to_jiffies(HNS_ROCE_V1_FREE_MR_TIMEOUT_MSECS) + jiffies; + int i; + int ret; + int ne = 0; + + mr_work = container_of(work, struct hns_roce_mr_free_work, work); + hr_mr = (struct hns_roce_mr *)mr_work->mr; + hr_dev = to_hr_dev(mr_work->ib_dev); + dev = &hr_dev->pdev->dev; + + priv = (struct hns_roce_v1_priv *)hr_dev->priv; + free_mr = &priv->free_mr; + mr_free_cq = free_mr->mr_free_cq; + + for (i = 0; i < HNS_ROCE_V1_RESV_QP; i++) { + hr_qp = free_mr->mr_free_qp[i]; + if (!hr_qp) + continue; + ne++; + + ret = hns_roce_v1_send_lp_wqe(hr_qp); + if (ret) { + dev_err(dev, + "Send wqe (qp:0x%lx) for mr free failed(%d)!\n", + hr_qp->qpn, ret); + goto free_work; + } + } + + if (!ne) { + dev_err(dev, "Reserved loop qp is absent!\n"); + goto free_work; + } + + do { + ret = hns_roce_v1_poll_cq(&mr_free_cq->ib_cq, ne, wc); + if (ret < 0 && hr_qp) { + dev_err(dev, + "(qp:0x%lx) starts, Poll cqe failed(%d) for mr 0x%x free! Remain %d cqe\n", + hr_qp->qpn, ret, hr_mr->key, ne); + goto free_work; + } + ne -= ret; + usleep_range(HNS_ROCE_V1_FREE_MR_WAIT_VALUE * 1000, + (1 + HNS_ROCE_V1_FREE_MR_WAIT_VALUE) * 1000); + } while (ne && time_before_eq(jiffies, end)); + + if (ne != 0) + dev_err(dev, + "Poll cqe for mr 0x%x free timeout! Remain %d cqe\n", + hr_mr->key, ne); + +free_work: + if (mr_work->comp_flag) + complete(mr_work->comp); + kfree(mr_work); +} + +static int hns_roce_v1_dereg_mr(struct hns_roce_dev *hr_dev, + struct hns_roce_mr *mr) +{ + struct device *dev = &hr_dev->pdev->dev; + struct hns_roce_mr_free_work *mr_work; + struct hns_roce_free_mr *free_mr; + struct hns_roce_v1_priv *priv; + struct completion comp; + unsigned long end = + msecs_to_jiffies(HNS_ROCE_V1_FREE_MR_TIMEOUT_MSECS) + jiffies; + unsigned long start = jiffies; + int npages; + int ret = 0; + + priv = (struct hns_roce_v1_priv *)hr_dev->priv; + free_mr = &priv->free_mr; + + if (mr->enabled) { + if (hns_roce_hw2sw_mpt(hr_dev, NULL, key_to_hw_index(mr->key) + & (hr_dev->caps.num_mtpts - 1))) + dev_warn(dev, "HW2SW_MPT failed!\n"); + } + + mr_work = kzalloc(sizeof(*mr_work), GFP_KERNEL); + if (!mr_work) { + ret = -ENOMEM; + goto free_mr; + } + + INIT_WORK(&(mr_work->work), hns_roce_v1_mr_free_work_fn); + + mr_work->ib_dev = &(hr_dev->ib_dev); + mr_work->comp = ∁ + mr_work->comp_flag = 1; + mr_work->mr = (void *)mr; + init_completion(mr_work->comp); + + queue_work(free_mr->free_mr_wq, &(mr_work->work)); + + while (time_before_eq(jiffies, end)) { + if (try_wait_for_completion(&comp)) + goto free_mr; + msleep(HNS_ROCE_V1_FREE_MR_WAIT_VALUE); + } + + mr_work->comp_flag = 0; + if (try_wait_for_completion(&comp)) + goto free_mr; + + dev_warn(dev, "Free mr work 0x%x over 50s and failed!\n", mr->key); + ret = -ETIMEDOUT; + +free_mr: + dev_dbg(dev, "Free mr 0x%x use 0x%x us.\n", + mr->key, jiffies_to_usecs(jiffies) - jiffies_to_usecs(start)); + + if (mr->size != ~0ULL) { + npages = ib_umem_page_count(mr->umem); + dma_free_coherent(dev, npages * 8, mr->pbl_buf, + mr->pbl_dma_addr); + } + + hns_roce_bitmap_free(&hr_dev->mr_table.mtpt_bitmap, + key_to_hw_index(mr->key), 0); + + if (mr->umem) + ib_umem_release(mr->umem); + + kfree(mr); + + return ret; +} + +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->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; + u32 val; + __le32 tmp; + int raq_shift = 0; + dma_addr_t addr; + 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->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); + tmp = cpu_to_le32(val); + roce_set_field(tmp, 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(tmp, ROCEE_EXT_RAQ_H_EXT_RAQ_BA_H_M, + ROCEE_EXT_RAQ_H_EXT_RAQ_BA_H_S, + raq->e_raq_buf->map >> 44); + val = le32_to_cpu(tmp); + 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); + tmp = cpu_to_le32(val); + roce_set_field(tmp, ROCEE_RAQ_WL_ROCEE_RAQ_WL_M, + ROCEE_RAQ_WL_ROCEE_RAQ_WL_S, + HNS_ROCE_V1_EXT_RAQ_WF); + val = le32_to_cpu(tmp); + 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); + tmp = cpu_to_le32(val); + roce_set_field(tmp, + 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(tmp, ROCEE_WRMS_POL_TIME_INTERVAL_WRMS_EXT_RAQ_MODE, 1); + roce_set_field(tmp, + 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(tmp, + ROCEE_WRMS_POL_TIME_INTERVAL_WRMS_RAQ_TIMEOUT_CHK_EN_S, 1); + val = le32_to_cpu(tmp); + 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); + tmp = cpu_to_le32(val); + roce_set_bit(tmp, ROCEE_GLB_CFG_TRP_RAQ_DROP_EN_S, 1); + val = le32_to_cpu(tmp); + 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->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) +{ + __le32 tmp; + u32 val; + + if (enable_flag) { + val = roce_read(hr_dev, ROCEE_GLB_CFG_REG); + /* Open all ports */ + tmp = cpu_to_le32(val); + roce_set_field(tmp, ROCEE_GLB_CFG_ROCEE_PORT_ST_M, + ROCEE_GLB_CFG_ROCEE_PORT_ST_S, + ALL_PORT_VAL_OPEN); + val = le32_to_cpu(tmp); + roce_write(hr_dev, ROCEE_GLB_CFG_REG, val); + } else { + val = roce_read(hr_dev, ROCEE_GLB_CFG_REG); + /* Close all ports */ + tmp = cpu_to_le32(val); + roce_set_field(tmp, ROCEE_GLB_CFG_ROCEE_PORT_ST_M, + ROCEE_GLB_CFG_ROCEE_PORT_ST_S, 0x0); + val = le32_to_cpu(tmp); + roce_write(hr_dev, ROCEE_GLB_CFG_REG, val); + } +} + +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->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->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); +} + +static int hns_roce_tptr_init(struct hns_roce_dev *hr_dev) +{ + struct device *dev = &hr_dev->pdev->dev; + struct hns_roce_buf_list *tptr_buf; + struct hns_roce_v1_priv *priv; + + priv = (struct hns_roce_v1_priv *)hr_dev->priv; + tptr_buf = &priv->tptr_table.tptr_buf; + + /* + * This buffer will be used for CQ's tptr(tail pointer), also + * named ci(customer index). Every CQ will use 2 bytes to save + * cqe ci in hip06. Hardware will read this area to get new ci + * when the queue is almost full. + */ + tptr_buf->buf = dma_alloc_coherent(dev, HNS_ROCE_V1_TPTR_BUF_SIZE, + &tptr_buf->map, GFP_KERNEL); + if (!tptr_buf->buf) + return -ENOMEM; + + hr_dev->tptr_dma_addr = tptr_buf->map; + hr_dev->tptr_size = HNS_ROCE_V1_TPTR_BUF_SIZE; + + return 0; +} + +static void hns_roce_tptr_free(struct hns_roce_dev *hr_dev) +{ + struct device *dev = &hr_dev->pdev->dev; + struct hns_roce_buf_list *tptr_buf; + struct hns_roce_v1_priv *priv; + + priv = (struct hns_roce_v1_priv *)hr_dev->priv; + tptr_buf = &priv->tptr_table.tptr_buf; + + dma_free_coherent(dev, HNS_ROCE_V1_TPTR_BUF_SIZE, + tptr_buf->buf, tptr_buf->map); +} + +static int hns_roce_free_mr_init(struct hns_roce_dev *hr_dev) +{ + struct device *dev = &hr_dev->pdev->dev; + struct hns_roce_free_mr *free_mr; + struct hns_roce_v1_priv *priv; + int ret = 0; + + priv = (struct hns_roce_v1_priv *)hr_dev->priv; + free_mr = &priv->free_mr; + + free_mr->free_mr_wq = create_singlethread_workqueue("hns_roce_free_mr"); + if (!free_mr->free_mr_wq) { + dev_err(dev, "Create free mr workqueue failed!\n"); + return -ENOMEM; + } + + ret = hns_roce_v1_rsv_lp_qp(hr_dev); + if (ret) { + dev_err(dev, "Reserved loop qp failed(%d)!\n", ret); + flush_workqueue(free_mr->free_mr_wq); + destroy_workqueue(free_mr->free_mr_wq); + } + + return ret; +} + +static void hns_roce_free_mr_free(struct hns_roce_dev *hr_dev) +{ + struct hns_roce_free_mr *free_mr; + struct hns_roce_v1_priv *priv; + + priv = (struct hns_roce_v1_priv *)hr_dev->priv; + free_mr = &priv->free_mr; + + flush_workqueue(free_mr->free_mr_wq); + destroy_workqueue(free_mr->free_mr_wq); + + hns_roce_v1_release_lp_qp(hr_dev); +} + +/** + * hns_roce_v1_reset - reset RoCE + * @hr_dev: RoCE device struct pointer + * @enable: true -- drop reset, false -- reset + * return 0 - success , negative --fail + */ +static int hns_roce_v1_reset(struct hns_roce_dev *hr_dev, bool dereset) +{ + struct device_node *dsaf_node; + struct device *dev = &hr_dev->pdev->dev; + struct device_node *np = dev->of_node; + struct fwnode_handle *fwnode; + int ret; + + /* 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 fwnode_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 = args.fwnode; + } else { + dev_err(dev, "cannot read data from DT or ACPI\n"); + return -ENXIO; + } + + ret = hns_dsaf_roce_reset(fwnode, false); + if (ret) + return ret; + + if (dereset) { + msleep(SLEEP_TIME_INTERVAL); + ret = hns_dsaf_roce_reset(fwnode, true); + } + + return ret; +} + +static int hns_roce_des_qp_init(struct hns_roce_dev *hr_dev) +{ + struct device *dev = &hr_dev->pdev->dev; + struct hns_roce_v1_priv *priv; + struct hns_roce_des_qp *des_qp; + + priv = (struct hns_roce_v1_priv *)hr_dev->priv; + des_qp = &priv->des_qp; + + des_qp->requeue_flag = 1; + des_qp->qp_wq = create_singlethread_workqueue("hns_roce_destroy_qp"); + if (!des_qp->qp_wq) { + dev_err(dev, "Create destroy qp workqueue failed!\n"); + return -ENOMEM; + } + + return 0; +} + +static void hns_roce_des_qp_free(struct hns_roce_dev *hr_dev) +{ + struct hns_roce_v1_priv *priv; + struct hns_roce_des_qp *des_qp; + + priv = (struct hns_roce_v1_priv *)hr_dev->priv; + des_qp = &priv->des_qp; + + des_qp->requeue_flag = 0; + flush_workqueue(des_qp->qp_wq); + destroy_workqueue(des_qp->qp_wq); +} + +static int 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 = roce_read(hr_dev, ROCEE_VENDOR_ID_REG); + hr_dev->vendor_part_id = roce_read(hr_dev, ROCEE_VENDOR_PART_ID_REG); + hr_dev->sys_image_guid = roce_read(hr_dev, ROCEE_SYS_IMAGE_GUID_L_REG) | + ((u64)roce_read(hr_dev, + ROCEE_SYS_IMAGE_GUID_H_REG) << 32); + hr_dev->hw_rev = HNS_ROCE_HW_VER1; + + caps->num_qps = HNS_ROCE_V1_MAX_QP_NUM; + caps->max_wqes = HNS_ROCE_V1_MAX_WQE_NUM; + caps->min_wqes = HNS_ROCE_MIN_WQE_NUM; + caps->num_cqs = HNS_ROCE_V1_MAX_CQ_NUM; + caps->min_cqes = HNS_ROCE_MIN_CQE_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_V1_AEQE_VEC_NUM; + caps->num_comp_vectors = HNS_ROCE_V1_COMP_VEC_NUM; + caps->num_other_vectors = HNS_ROCE_V1_ABNORMAL_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; + caps->chunk_sz = HNS_ROCE_V1_TABLE_CHUNK_SIZE; + + 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; + } + + caps->ceqe_depth = HNS_ROCE_V1_COMP_EQE_NUM; + caps->aeqe_depth = HNS_ROCE_V1_ASYNC_EQE_NUM; + caps->local_ca_ack_delay = roce_read(hr_dev, ROCEE_ACK_DELAY_REG); + caps->max_mtu = IB_MTU_2048; + + return 0; +} + +static int hns_roce_v1_init(struct hns_roce_dev *hr_dev) +{ + int ret; + u32 val; + __le32 tmp; + struct device *dev = &hr_dev->pdev->dev; + + /* DMAE user config */ + val = roce_read(hr_dev, ROCEE_DMAE_USER_CFG1_REG); + tmp = cpu_to_le32(val); + roce_set_field(tmp, ROCEE_DMAE_USER_CFG1_ROCEE_CACHE_TB_CFG_M, + ROCEE_DMAE_USER_CFG1_ROCEE_CACHE_TB_CFG_S, 0xf); + roce_set_field(tmp, ROCEE_DMAE_USER_CFG1_ROCEE_STREAM_ID_TB_CFG_M, + ROCEE_DMAE_USER_CFG1_ROCEE_STREAM_ID_TB_CFG_S, + 1 << PAGES_SHIFT_16); + val = le32_to_cpu(tmp); + roce_write(hr_dev, ROCEE_DMAE_USER_CFG1_REG, val); + + val = roce_read(hr_dev, ROCEE_DMAE_USER_CFG2_REG); + tmp = cpu_to_le32(val); + roce_set_field(tmp, ROCEE_DMAE_USER_CFG2_ROCEE_CACHE_PKT_CFG_M, + ROCEE_DMAE_USER_CFG2_ROCEE_CACHE_PKT_CFG_S, 0xf); + roce_set_field(tmp, 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; + } + + ret = hns_roce_bt_init(hr_dev); + if (ret) { + dev_err(dev, "bt init failed!\n"); + goto error_failed_bt_init; + } + + ret = hns_roce_tptr_init(hr_dev); + if (ret) { + dev_err(dev, "tptr init failed!\n"); + goto error_failed_tptr_init; + } + + ret = hns_roce_des_qp_init(hr_dev); + if (ret) { + dev_err(dev, "des qp init failed!\n"); + goto error_failed_des_qp_init; + } + + ret = hns_roce_free_mr_init(hr_dev); + if (ret) { + dev_err(dev, "free mr init failed!\n"); + goto error_failed_free_mr_init; + } + + hns_roce_port_enable(hr_dev, HNS_ROCE_PORT_UP); + + return 0; + +error_failed_free_mr_init: + hns_roce_des_qp_free(hr_dev); + +error_failed_des_qp_init: + hns_roce_tptr_free(hr_dev); + +error_failed_tptr_init: + hns_roce_bt_free(hr_dev); + +error_failed_bt_init: + hns_roce_raq_free(hr_dev); + +error_failed_raq_init: + hns_roce_db_free(hr_dev); + return ret; +} + +static void hns_roce_v1_exit(struct hns_roce_dev *hr_dev) +{ + hns_roce_port_enable(hr_dev, HNS_ROCE_PORT_DOWN); + hns_roce_free_mr_free(hr_dev); + hns_roce_des_qp_free(hr_dev); + hns_roce_tptr_free(hr_dev); + hns_roce_bt_free(hr_dev); + hns_roce_raq_free(hr_dev); + hns_roce_db_free(hr_dev); +} + +static int hns_roce_v1_cmd_pending(struct hns_roce_dev *hr_dev) +{ + u32 status = readl(hr_dev->reg_base + ROCEE_MB6_REG); + + return (!!(status & (1 << HCR_GO_BIT))); +} + +static int hns_roce_v1_post_mbox(struct hns_roce_dev *hr_dev, u64 in_param, + u64 out_param, u32 in_modifier, u8 op_modifier, + u16 op, u16 token, int event) +{ + u32 __iomem *hcr = (u32 __iomem *)(hr_dev->reg_base + ROCEE_MB1_REG); + unsigned long end; + u32 val = 0; + __le32 tmp; + + end = msecs_to_jiffies(GO_BIT_TIMEOUT_MSECS) + jiffies; + while (hns_roce_v1_cmd_pending(hr_dev)) { + if (time_after(jiffies, end)) { + dev_err(hr_dev->dev, "jiffies=%d end=%d\n", + (int)jiffies, (int)end); + return -EAGAIN; + } + cond_resched(); + } + + tmp = cpu_to_le32(val); + roce_set_field(tmp, ROCEE_MB6_ROCEE_MB_CMD_M, ROCEE_MB6_ROCEE_MB_CMD_S, + op); + roce_set_field(tmp, ROCEE_MB6_ROCEE_MB_CMD_MDF_M, + ROCEE_MB6_ROCEE_MB_CMD_MDF_S, op_modifier); + roce_set_bit(tmp, ROCEE_MB6_ROCEE_MB_EVENT_S, event); + roce_set_bit(tmp, ROCEE_MB6_ROCEE_MB_HW_RUN_S, 1); + roce_set_field(tmp, ROCEE_MB6_ROCEE_MB_TOKEN_M, + ROCEE_MB6_ROCEE_MB_TOKEN_S, token); + + val = le32_to_cpu(tmp); + writeq(in_param, hcr + 0); + writeq(out_param, hcr + 2); + writel(in_modifier, hcr + 4); + /* Memory barrier */ + wmb(); + + writel(val, hcr + 5); + + mmiowb(); + + return 0; +} + +static int hns_roce_v1_chk_mbox(struct hns_roce_dev *hr_dev, + unsigned long timeout) +{ + u8 __iomem *hcr = hr_dev->reg_base + ROCEE_MB1_REG; + unsigned long end = 0; + u32 status = 0; + + end = msecs_to_jiffies(timeout) + jiffies; + while (hns_roce_v1_cmd_pending(hr_dev) && time_before(jiffies, end)) + cond_resched(); + + if (hns_roce_v1_cmd_pending(hr_dev)) { + dev_err(hr_dev->dev, "[cmd_poll]hw run cmd TIMEDOUT!\n"); + return -ETIMEDOUT; + } + + status = le32_to_cpu((__force __le32) + __raw_readl(hcr + HCR_STATUS_OFFSET)); + if ((status & STATUS_MASK) != 0x1) { + dev_err(hr_dev->dev, "mailbox status 0x%x!\n", status); + return -EBUSY; + } + + return 0; +} + +static int hns_roce_v1_set_gid(struct hns_roce_dev *hr_dev, u8 port, + int gid_index, const union ib_gid *gid, + const struct ib_gid_attr *attr) +{ + 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)); + + return 0; +} + +static int hns_roce_v1_set_mac(struct hns_roce_dev *hr_dev, u8 phy_port, + u8 *addr) +{ + u32 reg_smac_l; + u16 reg_smac_h; + __le32 tmp; + u16 *p_h; + u32 *p; + u32 val; + + /* + * When mac changed, loopback may fail + * because of smac not equal to dmac. + * We Need to release and create reserved qp again. + */ + if (hr_dev->hw->dereg_mr) { + int ret; + + ret = hns_roce_v1_recreate_lp_qp(hr_dev); + if (ret && ret != -ETIMEDOUT) + return ret; + } + + 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); + tmp = cpu_to_le32(val); + p_h = (u16 *)(&addr[4]); + reg_smac_h = *p_h; + roce_set_field(tmp, ROCEE_SMAC_H_ROCEE_SMAC_H_M, + ROCEE_SMAC_H_ROCEE_SMAC_H_S, reg_smac_h); + val = le32_to_cpu(tmp); + roce_write(hr_dev, ROCEE_SMAC_H_0_REG + phy_port * PHY_PORT_OFFSET, + val); + + return 0; +} + +static void hns_roce_v1_set_mtu(struct hns_roce_dev *hr_dev, u8 phy_port, + enum ib_mtu mtu) +{ + __le32 tmp; + u32 val; + + val = roce_read(hr_dev, + ROCEE_SMAC_H_0_REG + phy_port * PHY_PORT_OFFSET); + tmp = cpu_to_le32(val); + roce_set_field(tmp, ROCEE_SMAC_H_ROCEE_PORT_MTU_M, + ROCEE_SMAC_H_ROCEE_PORT_MTU_S, mtu); + val = le32_to_cpu(tmp); + roce_write(hr_dev, ROCEE_SMAC_H_0_REG + phy_port * PHY_PORT_OFFSET, + val); +} + +static 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 = cpu_to_le32((u32)mr->iova); + mpt_entry->virt_addr_h = cpu_to_le32((u32)(mr->iova >> 32)); + mpt_entry->length = cpu_to_le32((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 memory register */ + 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, + (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, (u32)(pages[i])); + roce_set_field(mpt_entry->mpt_byte_40, + MPT_BYTE_40_PA1_H_M, + MPT_BYTE_40_PA1_H_S, + (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, (u32)(pages[i])); + roce_set_field(mpt_entry->mpt_byte_44, + MPT_BYTE_44_PA2_H_M, + MPT_BYTE_44_PA2_H_S, + (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, (u32)(pages[i])); + roce_set_field(mpt_entry->mpt_byte_48, + MPT_BYTE_48_PA3_H_M, + MPT_BYTE_48_PA3_H_S, + (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, + (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, (u32)(pages[i])); + roce_set_field(mpt_entry->mpt_byte_60, + MPT_BYTE_60_PA5_H_M, + MPT_BYTE_60_PA5_H_S, + (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, (u32)(pages[i])); + roce_set_field(mpt_entry->mpt_byte_64, + MPT_BYTE_64_PA6_H_M, + MPT_BYTE_64_PA6_H_S, + (u32)(pages[i] >> PAGES_SHIFT_16)); + break; + default: + break; + } + } + + free_page((unsigned long) pages); + + mpt_entry->pbl_addr_l = cpu_to_le32((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); +} + +static void hns_roce_v1_cq_set_ci(struct hns_roce_cq *hr_cq, u32 cons_index) +{ + __le32 doorbell[2]; + + doorbell[0] = cpu_to_le32(cons_index & ((hr_cq->cq_depth << 1) - 1)); + doorbell[1] = 0; + 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(); + + hns_roce_v1_cq_set_ci(hr_cq, hr_cq->cons_index); + } +} + +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); +} + +static 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; + struct hns_roce_buf_list *tptr_buf; + struct hns_roce_v1_priv *priv; + dma_addr_t tptr_dma_addr; + int offset; + + priv = (struct hns_roce_v1_priv *)hr_dev->priv; + tptr_buf = &priv->tptr_table.tptr_buf; + + cq_context = mb_buf; + memset(cq_context, 0, sizeof(*cq_context)); + + /* Get the tptr for this CQ. */ + offset = hr_cq->cqn * HNS_ROCE_V1_TPTR_ENTRY_SIZE; + tptr_dma_addr = tptr_buf->map + offset; + hr_cq->tptr_addr = (u16 *)(tptr_buf->buf + offset); + + /* 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->cq_bt_l = cpu_to_le32((u32)dma_handle); + + 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->cur_cqe_ba0_l = cpu_to_le32((u32)(mtts[0])); + + 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, (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, + tptr_dma_addr >> 44); + + cq_context->cqe_tptr_addr_l = cpu_to_le32((u32)(tptr_dma_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); +} + +static int hns_roce_v1_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period) +{ + return -EOPNOTSUPP; +} + +static 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; + __le32 doorbell[2]; + + 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] = + cpu_to_le32(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 0; +} + +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, + CQE_BYTE_4_WQE_INDEX_S)& + ((*cur_qp)->sq.wqe_cnt-1)); + switch (le32_to_cpu(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 = (le32_to_cpu(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 = + cpu_to_be32(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 = cpu_to_be32( + 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; + } + + if (npolled) { + *hr_cq->tptr_addr = hr_cq->cons_index & + ((hr_cq->cq_depth << 1) - 1); + + /* Memroy barrier */ + wmb(); + hns_roce_v1_cq_set_ci(hr_cq, hr_cq->cons_index); + } + + spin_unlock_irqrestore(&hr_cq->lock, flags); + + if (ret == 0 || ret == -EAGAIN) + return npolled; + else + return ret; +} + +static int hns_roce_v1_clear_hem(struct hns_roce_dev *hr_dev, + struct hns_roce_hem_table *table, int obj, + int step_idx) +{ + struct device *dev = &hr_dev->pdev->dev; + struct hns_roce_v1_priv *priv; + unsigned long end = 0, flags = 0; + __le32 bt_cmd_val[2] = {0}; + void __iomem *bt_cmd; + u64 bt_ba = 0; + + priv = (struct hns_roce_v1_priv *)hr_dev->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] = (__le32)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; +} + +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_TIMEOUT_MSECS); + + 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_TIMEOUT_MSECS); + + 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_TIMEOUT_MSECS); + + 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; + u32 __iomem *addr; + int rq_pa_start; + __le32 tmp; + u32 reg_val; + u64 *mtts; + + context = kzalloc(sizeof(*context), GFP_KERNEL); + if (!context) + return -ENOMEM; + + /* Search QP buf's MTTs */ + mtts = hns_roce_table_find(hr_dev, &hr_dev->mr_table.mtt_table, + hr_qp->mtt.first_seg, &dma_handle); + if (!mtts) { + dev_err(dev, "qp buf pa find failed\n"); + 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 = cpu_to_le32((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, + QP1C_BYTES_16_PORT_NUM_S, hr_qp->phy_port); + roce_set_bit(context->qp1c_bytes_16, + QP1C_BYTES_16_SIGNALING_TYPE_S, + le32_to_cpu(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 = + cpu_to_le32((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 = cpu_to_le32((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 __iomem *)(hr_dev->reg_base + + ROCEE_QP1C_CFG0_0_REG + + hr_qp->phy_port * sizeof(*context)); + + writel(le32_to_cpu(context->qp1c_bytes_4), addr); + writel(le32_to_cpu(context->sq_rq_bt_l), addr + 1); + writel(le32_to_cpu(context->qp1c_bytes_12), addr + 2); + writel(le32_to_cpu(context->qp1c_bytes_16), addr + 3); + writel(le32_to_cpu(context->qp1c_bytes_20), addr + 4); + writel(le32_to_cpu(context->cur_rq_wqe_ba_l), addr + 5); + writel(le32_to_cpu(context->qp1c_bytes_28), addr + 6); + writel(le32_to_cpu(context->qp1c_bytes_32), addr + 7); + writel(le32_to_cpu(context->cur_sq_wqe_ba_l), addr + 8); + writel(le32_to_cpu(context->qp1c_bytes_40), addr + 9); + } + + /* Modify QP1C status */ + reg_val = roce_read(hr_dev, ROCEE_QP1C_CFG0_0_REG + + hr_qp->phy_port * sizeof(*context)); + tmp = cpu_to_le32(reg_val); + roce_set_field(tmp, ROCEE_QP1C_CFG0_0_ROCEE_QP1C_QP_ST_M, + ROCEE_QP1C_CFG0_0_ROCEE_QP1C_QP_ST_S, new_state); + reg_val = le32_to_cpu(tmp); + roce_write(hr_dev, ROCEE_QP1C_CFG0_0_REG + + hr_qp->phy_port * sizeof(*context), reg_val); + + 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; + const struct ib_global_route *grh = rdma_ah_read_grh(&attr->ah_attr); + dma_addr_t dma_handle_2 = 0; + dma_addr_t dma_handle = 0; + __le32 doorbell[2] = {0}; + int rq_pa_start = 0; + u64 *mtts_2 = NULL; + int ret = -EINVAL; + u64 *mtts = NULL; + int port; + u8 port_num; + 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, &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, &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.roce.dmac; + + context->sq_rq_bt_l = cpu_to_le32((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 = cpu_to_le32((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, + le32_to_cpu(hr_qp->sq_signal_bits)); + + port = (attr_mask & IB_QP_PORT) ? (attr->port_num - 1) : + hr_qp->port; + smac = (u8 *)hr_dev->dev_addr[port]; + /* when dmac equals smac or loop_idc is 1, it should loopback */ + if (ether_addr_equal_unaligned(dmac, smac) || + hr_dev->loop_idc == 0x1) + roce_set_bit(context->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, + rdma_ah_get_ah_flags(&attr->ah_attr)); + 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)); + + if (attr_mask & IB_QP_DEST_QPN) + 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 */ + port_num = rdma_ah_get_port_num(&attr->ah_attr); + 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, + port_num - 1, + 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, + rdma_ah_get_static_rate(&attr->ah_attr)); + roce_set_field(context->qpc_bytes_44, + QP_CONTEXT_QPC_BYTES_44_HOPLMT_M, + QP_CONTEXT_QPC_BYTES_44_HOPLMT_S, + grh->hop_limit); + + roce_set_field(context->qpc_bytes_48, + QP_CONTEXT_QPC_BYTES_48_FLOWLABEL_M, + QP_CONTEXT_QPC_BYTES_48_FLOWLABEL_S, + grh->flow_label); + roce_set_field(context->qpc_bytes_48, + QP_CONTEXT_QPC_BYTES_48_TCLASS_M, + QP_CONTEXT_QPC_BYTES_48_TCLASS_S, + 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, grh->dgid.raw, + sizeof(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, + QP_CONTEXT_QPC_BYTES_68_RQ_HEAD_S, + hr_qp->rq.head); + 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 = + cpu_to_le32((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, + hr_qp->phy_port); + roce_set_field(context->qpc_bytes_156, + QP_CONTEXT_QPC_BYTES_156_SL_M, + QP_CONTEXT_QPC_BYTES_156_SL_S, + rdma_ah_get_sl(&attr->ah_attr)); + hr_qp->sl = rdma_ah_get_sl(&attr->ah_attr); + } 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 = cpu_to_le32((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, + QP_CONTEXT_QPC_BYTES_148_RETRY_COUNT_S, + attr->retry_cnt); + roce_set_field(context->qpc_bytes_148, + QP_CONTEXT_QPC_BYTES_148_RNR_RETRY_COUNT_M, + QP_CONTEXT_QPC_BYTES_148_RNR_RETRY_COUNT_S, + attr->rnr_retry); + 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); + 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); + } + 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, + hr_qp->phy_port); + roce_set_field(context->qpc_bytes_156, + QP_CONTEXT_QPC_BYTES_156_SL_M, + QP_CONTEXT_QPC_BYTES_156_SL_S, + rdma_ah_get_sl(&attr->ah_attr)); + hr_qp->sl = rdma_ah_get_sl(&attr->ah_attr); + 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 = cpu_to_le32((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); + } else if (!((cur_state == IB_QPS_INIT && new_state == IB_QPS_RESET) || + (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) || + (cur_state == IB_QPS_ERR && new_state == IB_QPS_ERR))) { + dev_err(dev, "not support this status migration\n"); + 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, new_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(); + + 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 + + hr_dev->odb_offset + + DB_REG_OFFSET * hr_dev->priv_uar.index; + } + + hns_roce_write64_k(doorbell, hr_qp->rq.db_reg_l); + } + + hr_qp->state = new_state; + + if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC) + hr_qp->resp_depth = attr->max_dest_rd_atomic; + if (attr_mask & IB_QP_PORT) { + hr_qp->port = attr->port_num - 1; + hr_qp->phy_port = hr_dev->iboe.phy_port[hr_qp->port]; + } + + if (new_state == IB_QPS_RESET && !ibqp->uobject) { + hns_roce_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; +} + +static 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_TIMEOUT_MSECS); + 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; +} + +static int hns_roce_v1_q_sqp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, + int qp_attr_mask, + struct ib_qp_init_attr *qp_init_attr) +{ + struct hns_roce_dev *hr_dev = to_hr_dev(ibqp->device); + struct hns_roce_qp *hr_qp = to_hr_qp(ibqp); + struct hns_roce_sqp_context context; + u32 addr; + + mutex_lock(&hr_qp->mutex); + + if (hr_qp->state == IB_QPS_RESET) { + qp_attr->qp_state = IB_QPS_RESET; + goto done; + } + + addr = ROCEE_QP1C_CFG0_0_REG + + hr_qp->port * sizeof(struct hns_roce_sqp_context); + context.qp1c_bytes_4 = cpu_to_le32(roce_read(hr_dev, addr)); + context.sq_rq_bt_l = cpu_to_le32(roce_read(hr_dev, addr + 1)); + context.qp1c_bytes_12 = cpu_to_le32(roce_read(hr_dev, addr + 2)); + context.qp1c_bytes_16 = cpu_to_le32(roce_read(hr_dev, addr + 3)); + context.qp1c_bytes_20 = cpu_to_le32(roce_read(hr_dev, addr + 4)); + context.cur_rq_wqe_ba_l = cpu_to_le32(roce_read(hr_dev, addr + 5)); + context.qp1c_bytes_28 = cpu_to_le32(roce_read(hr_dev, addr + 6)); + context.qp1c_bytes_32 = cpu_to_le32(roce_read(hr_dev, addr + 7)); + context.cur_sq_wqe_ba_l = cpu_to_le32(roce_read(hr_dev, addr + 8)); + context.qp1c_bytes_40 = cpu_to_le32(roce_read(hr_dev, addr + 9)); + + hr_qp->state = roce_get_field(context.qp1c_bytes_4, + QP1C_BYTES_4_QP_STATE_M, + QP1C_BYTES_4_QP_STATE_S); + qp_attr->qp_state = hr_qp->state; + qp_attr->path_mtu = IB_MTU_256; + qp_attr->path_mig_state = IB_MIG_ARMED; + qp_attr->qkey = QKEY_VAL; + qp_attr->ah_attr.type = RDMA_AH_ATTR_TYPE_ROCE; + qp_attr->rq_psn = 0; + qp_attr->sq_psn = 0; + qp_attr->dest_qp_num = 1; + qp_attr->qp_access_flags = 6; + + qp_attr->pkey_index = roce_get_field(context.qp1c_bytes_20, + QP1C_BYTES_20_PKEY_IDX_M, + QP1C_BYTES_20_PKEY_IDX_S); + qp_attr->port_num = hr_qp->port + 1; + qp_attr->sq_draining = 0; + qp_attr->max_rd_atomic = 0; + qp_attr->max_dest_rd_atomic = 0; + qp_attr->min_rnr_timer = 0; + qp_attr->timeout = 0; + qp_attr->retry_cnt = 0; + qp_attr->rnr_retry = 0; + qp_attr->alt_timeout = 0; + +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; + qp_attr->cap.max_send_wr = hr_qp->sq.wqe_cnt; + qp_attr->cap.max_send_sge = hr_qp->sq.max_gs; + qp_attr->cap.max_inline_data = 0; + qp_init_attr->cap = qp_attr->cap; + qp_init_attr->create_flags = 0; + + mutex_unlock(&hr_qp->mutex); + + return 0; +} + +static int hns_roce_v1_q_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; + qp_attr->ah_attr.type = RDMA_AH_ATTR_TYPE_ROCE; + 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) { + struct ib_global_route *grh = + rdma_ah_retrieve_grh(&qp_attr->ah_attr); + + rdma_ah_set_sl(&qp_attr->ah_attr, + roce_get_field(context->qpc_bytes_156, + QP_CONTEXT_QPC_BYTES_156_SL_M, + QP_CONTEXT_QPC_BYTES_156_SL_S)); + rdma_ah_set_ah_flags(&qp_attr->ah_attr, IB_AH_GRH); + grh->flow_label = + roce_get_field(context->qpc_bytes_48, + QP_CONTEXT_QPC_BYTES_48_FLOWLABEL_M, + QP_CONTEXT_QPC_BYTES_48_FLOWLABEL_S); + 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); + grh->hop_limit = + roce_get_field(context->qpc_bytes_44, + QP_CONTEXT_QPC_BYTES_44_HOPLMT_M, + QP_CONTEXT_QPC_BYTES_44_HOPLMT_S); + 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(grh->dgid.raw, context->dgid, + sizeof(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 = hr_qp->port + 1; + qp_attr->sq_draining = 0; + qp_attr->max_rd_atomic = 1 << 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 = 1 << 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 = (u8)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 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_qp *hr_qp = to_hr_qp(ibqp); + + return hr_qp->doorbell_qpn <= 1 ? + hns_roce_v1_q_sqp(ibqp, qp_attr, qp_attr_mask, qp_init_attr) : + hns_roce_v1_q_qp(ibqp, qp_attr, qp_attr_mask, qp_init_attr); +} + +static void hns_roce_check_sdb_status(struct hns_roce_dev *hr_dev, + u32 *old_send, u32 *old_retry, + u32 *tsp_st, u32 *success_flags) +{ + __le32 *old_send_tmp, *old_retry_tmp; + u32 sdb_retry_cnt; + u32 sdb_send_ptr; + u32 cur_cnt, old_cnt; + __le32 tmp, tmp1; + u32 send_ptr; + + sdb_send_ptr = roce_read(hr_dev, ROCEE_SDB_SEND_PTR_REG); + sdb_retry_cnt = roce_read(hr_dev, ROCEE_SDB_RETRY_CNT_REG); + tmp = cpu_to_le32(sdb_send_ptr); + tmp1 = cpu_to_le32(sdb_retry_cnt); + cur_cnt = roce_get_field(tmp, ROCEE_SDB_SEND_PTR_SDB_SEND_PTR_M, + ROCEE_SDB_SEND_PTR_SDB_SEND_PTR_S) + + roce_get_field(tmp1, ROCEE_SDB_RETRY_CNT_SDB_RETRY_CT_M, + ROCEE_SDB_RETRY_CNT_SDB_RETRY_CT_S); + + old_send_tmp = (__le32 *)old_send; + old_retry_tmp = (__le32 *)old_retry; + if (!roce_get_bit(*tsp_st, ROCEE_CNT_CLR_CE_CNT_CLR_CE_S)) { + old_cnt = roce_get_field(*old_send_tmp, + ROCEE_SDB_SEND_PTR_SDB_SEND_PTR_M, + ROCEE_SDB_SEND_PTR_SDB_SEND_PTR_S) + + roce_get_field(*old_retry_tmp, + ROCEE_SDB_RETRY_CNT_SDB_RETRY_CT_M, + ROCEE_SDB_RETRY_CNT_SDB_RETRY_CT_S); + if (cur_cnt - old_cnt > SDB_ST_CMP_VAL) + *success_flags = 1; + } else { + old_cnt = roce_get_field(*old_send_tmp, + ROCEE_SDB_SEND_PTR_SDB_SEND_PTR_M, + ROCEE_SDB_SEND_PTR_SDB_SEND_PTR_S); + if (cur_cnt - old_cnt > SDB_ST_CMP_VAL) { + *success_flags = 1; + } else { + send_ptr = roce_get_field(*old_send_tmp, + ROCEE_SDB_SEND_PTR_SDB_SEND_PTR_M, + ROCEE_SDB_SEND_PTR_SDB_SEND_PTR_S) + + roce_get_field(tmp1, + ROCEE_SDB_RETRY_CNT_SDB_RETRY_CT_M, + ROCEE_SDB_RETRY_CNT_SDB_RETRY_CT_S); + roce_set_field(*old_send_tmp, + ROCEE_SDB_SEND_PTR_SDB_SEND_PTR_M, + ROCEE_SDB_SEND_PTR_SDB_SEND_PTR_S, + send_ptr); + } + } +} + +static int check_qp_db_process_status(struct hns_roce_dev *hr_dev, + struct hns_roce_qp *hr_qp, + u32 sdb_issue_ptr, + u32 *sdb_inv_cnt, + u32 *wait_stage) +{ + struct device *dev = &hr_dev->pdev->dev; + u32 sdb_send_ptr, old_send; + __le32 sdb_issue_ptr_tmp; + __le32 sdb_send_ptr_tmp; + u32 success_flags = 0; + unsigned long end; + u32 old_retry; + u32 inv_cnt; + u32 tsp_st; + __le32 tmp; + + if (*wait_stage > HNS_ROCE_V1_DB_STAGE2 || + *wait_stage < HNS_ROCE_V1_DB_STAGE1) { + dev_err(dev, "QP(0x%lx) db status wait stage(%d) error!\n", + hr_qp->qpn, *wait_stage); + return -EINVAL; + } + + /* Calculate the total timeout for the entire verification process */ + end = msecs_to_jiffies(HNS_ROCE_V1_CHECK_DB_TIMEOUT_MSECS) + jiffies; + + if (*wait_stage == HNS_ROCE_V1_DB_STAGE1) { + /* Query db process status, until hw process completely */ + sdb_send_ptr = roce_read(hr_dev, ROCEE_SDB_SEND_PTR_REG); + while (roce_hw_index_cmp_lt(sdb_send_ptr, sdb_issue_ptr, + ROCEE_SDB_PTR_CMP_BITS)) { + if (!time_before(jiffies, end)) { + dev_dbg(dev, "QP(0x%lx) db process stage1 timeout. issue 0x%x send 0x%x.\n", + hr_qp->qpn, sdb_issue_ptr, + sdb_send_ptr); + return 0; + } + + msleep(HNS_ROCE_V1_CHECK_DB_SLEEP_MSECS); + sdb_send_ptr = roce_read(hr_dev, + ROCEE_SDB_SEND_PTR_REG); + } + + sdb_send_ptr_tmp = cpu_to_le32(sdb_send_ptr); + sdb_issue_ptr_tmp = cpu_to_le32(sdb_issue_ptr); + if (roce_get_field(sdb_issue_ptr_tmp, + ROCEE_SDB_ISSUE_PTR_SDB_ISSUE_PTR_M, + ROCEE_SDB_ISSUE_PTR_SDB_ISSUE_PTR_S) == + roce_get_field(sdb_send_ptr_tmp, + ROCEE_SDB_SEND_PTR_SDB_SEND_PTR_M, + ROCEE_SDB_SEND_PTR_SDB_SEND_PTR_S)) { + old_send = roce_read(hr_dev, ROCEE_SDB_SEND_PTR_REG); + old_retry = roce_read(hr_dev, ROCEE_SDB_RETRY_CNT_REG); + + do { + tsp_st = roce_read(hr_dev, ROCEE_TSP_BP_ST_REG); + tmp = cpu_to_le32(tsp_st); + if (roce_get_bit(tmp, + ROCEE_TSP_BP_ST_QH_FIFO_ENTRY_S) == 1) { + *wait_stage = HNS_ROCE_V1_DB_WAIT_OK; + return 0; + } + + if (!time_before(jiffies, end)) { + dev_dbg(dev, "QP(0x%lx) db process stage1 timeout when send ptr equals issue ptr.\n" + "issue 0x%x send 0x%x.\n", + hr_qp->qpn, + le32_to_cpu(sdb_issue_ptr_tmp), + le32_to_cpu(sdb_send_ptr_tmp)); + return 0; + } + + msleep(HNS_ROCE_V1_CHECK_DB_SLEEP_MSECS); + + hns_roce_check_sdb_status(hr_dev, &old_send, + &old_retry, &tsp_st, + &success_flags); + } while (!success_flags); + } + + *wait_stage = HNS_ROCE_V1_DB_STAGE2; + + /* Get list pointer */ + *sdb_inv_cnt = roce_read(hr_dev, ROCEE_SDB_INV_CNT_REG); + dev_dbg(dev, "QP(0x%lx) db process stage2. inv cnt = 0x%x.\n", + hr_qp->qpn, *sdb_inv_cnt); + } + + if (*wait_stage == HNS_ROCE_V1_DB_STAGE2) { + /* Query db's list status, until hw reversal */ + inv_cnt = roce_read(hr_dev, ROCEE_SDB_INV_CNT_REG); + while (roce_hw_index_cmp_lt(inv_cnt, + *sdb_inv_cnt + SDB_INV_CNT_OFFSET, + ROCEE_SDB_CNT_CMP_BITS)) { + if (!time_before(jiffies, end)) { + dev_dbg(dev, "QP(0x%lx) db process stage2 timeout. inv cnt 0x%x.\n", + hr_qp->qpn, inv_cnt); + return 0; + } + + msleep(HNS_ROCE_V1_CHECK_DB_SLEEP_MSECS); + inv_cnt = roce_read(hr_dev, ROCEE_SDB_INV_CNT_REG); + } + + *wait_stage = HNS_ROCE_V1_DB_WAIT_OK; + } + + return 0; +} + +static int check_qp_reset_state(struct hns_roce_dev *hr_dev, + struct hns_roce_qp *hr_qp, + struct hns_roce_qp_work *qp_work_entry, + int *is_timeout) +{ + struct device *dev = &hr_dev->pdev->dev; + u32 sdb_issue_ptr; + int ret; + + if (hr_qp->state != IB_QPS_RESET) { + /* Set qp to ERR, waiting for hw complete processing all dbs */ + ret = hns_roce_v1_modify_qp(&hr_qp->ibqp, NULL, 0, hr_qp->state, + IB_QPS_ERR); + if (ret) { + dev_err(dev, "Modify QP(0x%lx) to ERR failed!\n", + hr_qp->qpn); + return ret; + } + + /* Record issued doorbell */ + sdb_issue_ptr = roce_read(hr_dev, ROCEE_SDB_ISSUE_PTR_REG); + qp_work_entry->sdb_issue_ptr = sdb_issue_ptr; + qp_work_entry->db_wait_stage = HNS_ROCE_V1_DB_STAGE1; + + /* Query db process status, until hw process completely */ + ret = check_qp_db_process_status(hr_dev, hr_qp, sdb_issue_ptr, + &qp_work_entry->sdb_inv_cnt, + &qp_work_entry->db_wait_stage); + if (ret) { + dev_err(dev, "Check QP(0x%lx) db process status failed!\n", + hr_qp->qpn); + return ret; + } + + if (qp_work_entry->db_wait_stage != HNS_ROCE_V1_DB_WAIT_OK) { + qp_work_entry->sche_cnt = 0; + *is_timeout = 1; + return 0; + } + + /* Modify qp to reset before destroying qp */ + ret = hns_roce_v1_modify_qp(&hr_qp->ibqp, NULL, 0, hr_qp->state, + IB_QPS_RESET); + if (ret) { + dev_err(dev, "Modify QP(0x%lx) to RST failed!\n", + hr_qp->qpn); + return ret; + } + } + + return 0; +} + +static void hns_roce_v1_destroy_qp_work_fn(struct work_struct *work) +{ + struct hns_roce_qp_work *qp_work_entry; + struct hns_roce_v1_priv *priv; + struct hns_roce_dev *hr_dev; + struct hns_roce_qp *hr_qp; + struct device *dev; + unsigned long qpn; + int ret; + + qp_work_entry = container_of(work, struct hns_roce_qp_work, work); + hr_dev = to_hr_dev(qp_work_entry->ib_dev); + dev = &hr_dev->pdev->dev; + priv = (struct hns_roce_v1_priv *)hr_dev->priv; + hr_qp = qp_work_entry->qp; + qpn = hr_qp->qpn; + + dev_dbg(dev, "Schedule destroy QP(0x%lx) work.\n", qpn); + + qp_work_entry->sche_cnt++; + + /* Query db process status, until hw process completely */ + ret = check_qp_db_process_status(hr_dev, hr_qp, + qp_work_entry->sdb_issue_ptr, + &qp_work_entry->sdb_inv_cnt, + &qp_work_entry->db_wait_stage); + if (ret) { + dev_err(dev, "Check QP(0x%lx) db process status failed!\n", + qpn); + return; + } + + if (qp_work_entry->db_wait_stage != HNS_ROCE_V1_DB_WAIT_OK && + priv->des_qp.requeue_flag) { + queue_work(priv->des_qp.qp_wq, work); + return; + } + + /* Modify qp to reset before destroying qp */ + ret = hns_roce_v1_modify_qp(&hr_qp->ibqp, NULL, 0, hr_qp->state, + IB_QPS_RESET); + if (ret) { + dev_err(dev, "Modify QP(0x%lx) to RST failed!\n", qpn); + return; + } + + hns_roce_qp_remove(hr_dev, hr_qp); + hns_roce_qp_free(hr_dev, hr_qp); + + if (hr_qp->ibqp.qp_type == IB_QPT_RC) { + /* RC QP, release QPN */ + hns_roce_release_range_qp(hr_dev, qpn, 1); + kfree(hr_qp); + } else + kfree(hr_to_hr_sqp(hr_qp)); + + kfree(qp_work_entry); + + dev_dbg(dev, "Accomplished destroy QP(0x%lx) work.\n", qpn); +} + +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); + struct device *dev = &hr_dev->pdev->dev; + struct hns_roce_qp_work qp_work_entry; + struct hns_roce_qp_work *qp_work; + struct hns_roce_v1_priv *priv; + struct hns_roce_cq *send_cq, *recv_cq; + int is_user = !!ibqp->pd->uobject; + int is_timeout = 0; + int ret; + + ret = check_qp_reset_state(hr_dev, hr_qp, &qp_work_entry, &is_timeout); + if (ret) { + dev_err(dev, "QP reset state check failed(%d)!\n", ret); + return ret; + } + + send_cq = to_hr_cq(hr_qp->ibqp.send_cq); + recv_cq = to_hr_cq(hr_qp->ibqp.recv_cq); + + hns_roce_lock_cqs(send_cq, recv_cq); + if (!is_user) { + __hns_roce_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_unlock_cqs(send_cq, recv_cq); + + if (!is_timeout) { + hns_roce_qp_remove(hr_dev, hr_qp); + hns_roce_qp_free(hr_dev, hr_qp); + + /* RC QP, release QPN */ + if (hr_qp->ibqp.qp_type == IB_QPT_RC) + 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); + } + + if (!is_timeout) { + if (hr_qp->ibqp.qp_type == IB_QPT_RC) + kfree(hr_qp); + else + kfree(hr_to_hr_sqp(hr_qp)); + } else { + qp_work = kzalloc(sizeof(*qp_work), GFP_KERNEL); + if (!qp_work) + return -ENOMEM; + + INIT_WORK(&qp_work->work, hns_roce_v1_destroy_qp_work_fn); + qp_work->ib_dev = &hr_dev->ib_dev; + qp_work->qp = hr_qp; + qp_work->db_wait_stage = qp_work_entry.db_wait_stage; + qp_work->sdb_issue_ptr = qp_work_entry.sdb_issue_ptr; + qp_work->sdb_inv_cnt = qp_work_entry.sdb_inv_cnt; + qp_work->sche_cnt = qp_work_entry.sche_cnt; + + priv = (struct hns_roce_v1_priv *)hr_dev->priv; + queue_work(priv->des_qp.qp_wq, &qp_work->work); + dev_dbg(dev, "Begin destroy QP(0x%lx) work.\n", hr_qp->qpn); + } + + return 0; +} + +static int hns_roce_v1_destroy_cq(struct ib_cq *ibcq) +{ + struct hns_roce_dev *hr_dev = to_hr_dev(ibcq->device); + struct hns_roce_cq *hr_cq = to_hr_cq(ibcq); + struct device *dev = &hr_dev->pdev->dev; + u32 cqe_cnt_ori; + u32 cqe_cnt_cur; + u32 cq_buf_size; + int wait_time = 0; + int ret = 0; + + hns_roce_free_cq(hr_dev, hr_cq); + + /* + * Before freeing cq buffer, we need to ensure that the outstanding CQE + * have been written by checking the CQE counter. + */ + cqe_cnt_ori = roce_read(hr_dev, ROCEE_SCAEP_WR_CQE_CNT); + while (1) { + if (roce_read(hr_dev, ROCEE_CAEP_CQE_WCMD_EMPTY) & + HNS_ROCE_CQE_WCMD_EMPTY_BIT) + break; + + cqe_cnt_cur = roce_read(hr_dev, ROCEE_SCAEP_WR_CQE_CNT); + if ((cqe_cnt_cur - cqe_cnt_ori) >= HNS_ROCE_MIN_CQE_CNT) + break; + + msleep(HNS_ROCE_EACH_FREE_CQ_WAIT_MSECS); + if (wait_time > HNS_ROCE_MAX_FREE_CQ_WAIT_CNT) { + dev_warn(dev, "Destroy cq 0x%lx timeout!\n", + hr_cq->cqn); + ret = -ETIMEDOUT; + break; + } + wait_time++; + } + + hns_roce_mtt_cleanup(hr_dev, &hr_cq->hr_buf.hr_mtt); + + if (ibcq->uobject) + ib_umem_release(hr_cq->umem); + else { + /* Free the buff of stored cq */ + cq_buf_size = (ibcq->cqe + 1) * hr_dev->caps.cq_entry_sz; + hns_roce_buf_free(hr_dev, cq_buf_size, &hr_cq->hr_buf.hr_buf); + } + + kfree(hr_cq); + + return ret; +} + +static void set_eq_cons_index_v1(struct hns_roce_eq *eq, int req_not) +{ + roce_raw_write((eq->cons_index & HNS_ROCE_V1_CONS_IDX_M) | + (req_not << eq->log_entries), eq->doorbell); +} + +static void hns_roce_v1_wq_catas_err_handle(struct hns_roce_dev *hr_dev, + struct hns_roce_aeqe *aeqe, int qpn) +{ + struct device *dev = &hr_dev->pdev->dev; + + dev_warn(dev, "Local Work Queue Catastrophic Error.\n"); + switch (roce_get_field(aeqe->asyn, HNS_ROCE_AEQE_U32_4_EVENT_SUB_TYPE_M, + HNS_ROCE_AEQE_U32_4_EVENT_SUB_TYPE_S)) { + case HNS_ROCE_LWQCE_QPC_ERROR: + dev_warn(dev, "QP %d, QPC error.\n", qpn); + break; + case HNS_ROCE_LWQCE_MTU_ERROR: + dev_warn(dev, "QP %d, MTU error.\n", qpn); + break; + case HNS_ROCE_LWQCE_WQE_BA_ADDR_ERROR: + dev_warn(dev, "QP %d, WQE BA addr error.\n", qpn); + break; + case HNS_ROCE_LWQCE_WQE_ADDR_ERROR: + dev_warn(dev, "QP %d, WQE addr error.\n", qpn); + break; + case HNS_ROCE_LWQCE_SQ_WQE_SHIFT_ERROR: + dev_warn(dev, "QP %d, WQE shift error\n", qpn); + break; + case HNS_ROCE_LWQCE_SL_ERROR: + dev_warn(dev, "QP %d, SL error.\n", qpn); + break; + case HNS_ROCE_LWQCE_PORT_ERROR: + dev_warn(dev, "QP %d, port error.\n", qpn); + break; + default: + break; + } +} + +static void hns_roce_v1_local_wq_access_err_handle(struct hns_roce_dev *hr_dev, + struct hns_roce_aeqe *aeqe, + int qpn) +{ + struct device *dev = &hr_dev->pdev->dev; + + dev_warn(dev, "Local Access Violation Work Queue Error.\n"); + switch (roce_get_field(aeqe->asyn, HNS_ROCE_AEQE_U32_4_EVENT_SUB_TYPE_M, + HNS_ROCE_AEQE_U32_4_EVENT_SUB_TYPE_S)) { + case HNS_ROCE_LAVWQE_R_KEY_VIOLATION: + dev_warn(dev, "QP %d, R_key violation.\n", qpn); + break; + case HNS_ROCE_LAVWQE_LENGTH_ERROR: + dev_warn(dev, "QP %d, length error.\n", qpn); + break; + case HNS_ROCE_LAVWQE_VA_ERROR: + dev_warn(dev, "QP %d, VA error.\n", qpn); + break; + case HNS_ROCE_LAVWQE_PD_ERROR: + dev_err(dev, "QP %d, PD error.\n", qpn); + break; + case HNS_ROCE_LAVWQE_RW_ACC_ERROR: + dev_warn(dev, "QP %d, rw acc error.\n", qpn); + break; + case HNS_ROCE_LAVWQE_KEY_STATE_ERROR: + dev_warn(dev, "QP %d, key state error.\n", qpn); + break; + case HNS_ROCE_LAVWQE_MR_OPERATION_ERROR: + dev_warn(dev, "QP %d, MR operation error.\n", qpn); + break; + default: + break; + } +} + +static void hns_roce_v1_qp_err_handle(struct hns_roce_dev *hr_dev, + struct hns_roce_aeqe *aeqe, + int event_type) +{ + struct device *dev = &hr_dev->pdev->dev; + int phy_port; + int qpn; + + qpn = roce_get_field(aeqe->event.qp_event.qp, + HNS_ROCE_AEQE_EVENT_QP_EVENT_QP_QPN_M, + HNS_ROCE_AEQE_EVENT_QP_EVENT_QP_QPN_S); + phy_port = roce_get_field(aeqe->event.qp_event.qp, + HNS_ROCE_AEQE_EVENT_QP_EVENT_PORT_NUM_M, + HNS_ROCE_AEQE_EVENT_QP_EVENT_PORT_NUM_S); + if (qpn <= 1) + qpn = HNS_ROCE_MAX_PORTS * qpn + phy_port; + + switch (event_type) { + case HNS_ROCE_EVENT_TYPE_INV_REQ_LOCAL_WQ_ERROR: + dev_warn(dev, "Invalid Req Local Work Queue Error.\n" + "QP %d, phy_port %d.\n", qpn, phy_port); + break; + case HNS_ROCE_EVENT_TYPE_WQ_CATAS_ERROR: + hns_roce_v1_wq_catas_err_handle(hr_dev, aeqe, qpn); + break; + case HNS_ROCE_EVENT_TYPE_LOCAL_WQ_ACCESS_ERROR: + hns_roce_v1_local_wq_access_err_handle(hr_dev, aeqe, qpn); + break; + default: + break; + } + + hns_roce_qp_event(hr_dev, qpn, event_type); +} + +static void hns_roce_v1_cq_err_handle(struct hns_roce_dev *hr_dev, + struct hns_roce_aeqe *aeqe, + int event_type) +{ + struct device *dev = &hr_dev->pdev->dev; + u32 cqn; + + cqn = roce_get_field(aeqe->event.cq_event.cq, + HNS_ROCE_AEQE_EVENT_CQ_EVENT_CQ_CQN_M, + HNS_ROCE_AEQE_EVENT_CQ_EVENT_CQ_CQN_S); + + switch (event_type) { + case HNS_ROCE_EVENT_TYPE_CQ_ACCESS_ERROR: + dev_warn(dev, "CQ 0x%x access err.\n", cqn); + break; + case HNS_ROCE_EVENT_TYPE_CQ_OVERFLOW: + dev_warn(dev, "CQ 0x%x overflow\n", cqn); + break; + case HNS_ROCE_EVENT_TYPE_CQ_ID_INVALID: + dev_warn(dev, "CQ 0x%x ID invalid.\n", cqn); + break; + default: + break; + } + + hns_roce_cq_event(hr_dev, cqn, event_type); +} + +static void hns_roce_v1_db_overflow_handle(struct hns_roce_dev *hr_dev, + struct hns_roce_aeqe *aeqe) +{ + struct device *dev = &hr_dev->pdev->dev; + + switch (roce_get_field(aeqe->asyn, HNS_ROCE_AEQE_U32_4_EVENT_SUB_TYPE_M, + HNS_ROCE_AEQE_U32_4_EVENT_SUB_TYPE_S)) { + case HNS_ROCE_DB_SUBTYPE_SDB_OVF: + dev_warn(dev, "SDB overflow.\n"); + break; + case HNS_ROCE_DB_SUBTYPE_SDB_ALM_OVF: + dev_warn(dev, "SDB almost overflow.\n"); + break; + case HNS_ROCE_DB_SUBTYPE_SDB_ALM_EMP: + dev_warn(dev, "SDB almost empty.\n"); + break; + case HNS_ROCE_DB_SUBTYPE_ODB_OVF: + dev_warn(dev, "ODB overflow.\n"); + break; + case HNS_ROCE_DB_SUBTYPE_ODB_ALM_OVF: + dev_warn(dev, "ODB almost overflow.\n"); + break; + case HNS_ROCE_DB_SUBTYPE_ODB_ALM_EMP: + dev_warn(dev, "SDB almost empty.\n"); + break; + default: + break; + } +} + +static struct hns_roce_aeqe *get_aeqe_v1(struct hns_roce_eq *eq, u32 entry) +{ + unsigned long off = (entry & (eq->entries - 1)) * + HNS_ROCE_AEQ_ENTRY_SIZE; + + return (struct hns_roce_aeqe *)((u8 *) + (eq->buf_list[off / HNS_ROCE_BA_SIZE].buf) + + off % HNS_ROCE_BA_SIZE); +} + +static struct hns_roce_aeqe *next_aeqe_sw_v1(struct hns_roce_eq *eq) +{ + struct hns_roce_aeqe *aeqe = get_aeqe_v1(eq, eq->cons_index); + + return (roce_get_bit(aeqe->asyn, HNS_ROCE_AEQE_U32_4_OWNER_S) ^ + !!(eq->cons_index & eq->entries)) ? aeqe : NULL; +} + +static int hns_roce_v1_aeq_int(struct hns_roce_dev *hr_dev, + struct hns_roce_eq *eq) +{ + struct device *dev = &hr_dev->pdev->dev; + struct hns_roce_aeqe *aeqe; + int aeqes_found = 0; + int event_type; + + while ((aeqe = next_aeqe_sw_v1(eq))) { + + /* Make sure we read the AEQ entry after we have checked the + * ownership bit + */ + dma_rmb(); + + dev_dbg(dev, "aeqe = %p, aeqe->asyn.event_type = 0x%lx\n", aeqe, + roce_get_field(aeqe->asyn, + HNS_ROCE_AEQE_U32_4_EVENT_TYPE_M, + HNS_ROCE_AEQE_U32_4_EVENT_TYPE_S)); + event_type = roce_get_field(aeqe->asyn, + HNS_ROCE_AEQE_U32_4_EVENT_TYPE_M, + HNS_ROCE_AEQE_U32_4_EVENT_TYPE_S); + switch (event_type) { + case HNS_ROCE_EVENT_TYPE_PATH_MIG: + dev_warn(dev, "PATH MIG not supported\n"); + break; + case HNS_ROCE_EVENT_TYPE_COMM_EST: + dev_warn(dev, "COMMUNICATION established\n"); + break; + case HNS_ROCE_EVENT_TYPE_SQ_DRAINED: + dev_warn(dev, "SQ DRAINED not supported\n"); + break; + case HNS_ROCE_EVENT_TYPE_PATH_MIG_FAILED: + dev_warn(dev, "PATH MIG failed\n"); + break; + case HNS_ROCE_EVENT_TYPE_INV_REQ_LOCAL_WQ_ERROR: + case HNS_ROCE_EVENT_TYPE_WQ_CATAS_ERROR: + case HNS_ROCE_EVENT_TYPE_LOCAL_WQ_ACCESS_ERROR: + hns_roce_v1_qp_err_handle(hr_dev, aeqe, event_type); + break; + case HNS_ROCE_EVENT_TYPE_SRQ_LIMIT_REACH: + case HNS_ROCE_EVENT_TYPE_SRQ_CATAS_ERROR: + case HNS_ROCE_EVENT_TYPE_SRQ_LAST_WQE_REACH: + dev_warn(dev, "SRQ not support!\n"); + break; + case HNS_ROCE_EVENT_TYPE_CQ_ACCESS_ERROR: + case HNS_ROCE_EVENT_TYPE_CQ_OVERFLOW: + case HNS_ROCE_EVENT_TYPE_CQ_ID_INVALID: + hns_roce_v1_cq_err_handle(hr_dev, aeqe, event_type); + break; + case HNS_ROCE_EVENT_TYPE_PORT_CHANGE: + dev_warn(dev, "port change.\n"); + break; + case HNS_ROCE_EVENT_TYPE_MB: + hns_roce_cmd_event(hr_dev, + le16_to_cpu(aeqe->event.cmd.token), + aeqe->event.cmd.status, + le64_to_cpu(aeqe->event.cmd.out_param + )); + break; + case HNS_ROCE_EVENT_TYPE_DB_OVERFLOW: + hns_roce_v1_db_overflow_handle(hr_dev, aeqe); + break; + case HNS_ROCE_EVENT_TYPE_CEQ_OVERFLOW: + dev_warn(dev, "CEQ 0x%lx overflow.\n", + roce_get_field(aeqe->event.ce_event.ceqe, + HNS_ROCE_AEQE_EVENT_CE_EVENT_CEQE_CEQN_M, + HNS_ROCE_AEQE_EVENT_CE_EVENT_CEQE_CEQN_S)); + break; + default: + dev_warn(dev, "Unhandled event %d on EQ %d at idx %u.\n", + event_type, eq->eqn, eq->cons_index); + break; + } + + eq->cons_index++; + aeqes_found = 1; + + if (eq->cons_index > 2 * hr_dev->caps.aeqe_depth - 1) { + dev_warn(dev, "cons_index overflow, set back to 0.\n"); + eq->cons_index = 0; + } + } + + set_eq_cons_index_v1(eq, 0); + + return aeqes_found; +} + +static struct hns_roce_ceqe *get_ceqe_v1(struct hns_roce_eq *eq, u32 entry) +{ + unsigned long off = (entry & (eq->entries - 1)) * + HNS_ROCE_CEQ_ENTRY_SIZE; + + return (struct hns_roce_ceqe *)((u8 *) + (eq->buf_list[off / HNS_ROCE_BA_SIZE].buf) + + off % HNS_ROCE_BA_SIZE); +} + +static struct hns_roce_ceqe *next_ceqe_sw_v1(struct hns_roce_eq *eq) +{ + struct hns_roce_ceqe *ceqe = get_ceqe_v1(eq, eq->cons_index); + + return (!!(roce_get_bit(ceqe->comp, + HNS_ROCE_CEQE_CEQE_COMP_OWNER_S))) ^ + (!!(eq->cons_index & eq->entries)) ? ceqe : NULL; +} + +static int hns_roce_v1_ceq_int(struct hns_roce_dev *hr_dev, + struct hns_roce_eq *eq) +{ + struct hns_roce_ceqe *ceqe; + int ceqes_found = 0; + u32 cqn; + + while ((ceqe = next_ceqe_sw_v1(eq))) { + + /* Make sure we read CEQ entry after we have checked the + * ownership bit + */ + dma_rmb(); + + cqn = roce_get_field(ceqe->comp, + HNS_ROCE_CEQE_CEQE_COMP_CQN_M, + HNS_ROCE_CEQE_CEQE_COMP_CQN_S); + hns_roce_cq_completion(hr_dev, cqn); + + ++eq->cons_index; + ceqes_found = 1; + + if (eq->cons_index > 2 * hr_dev->caps.ceqe_depth - 1) { + dev_warn(&eq->hr_dev->pdev->dev, + "cons_index overflow, set back to 0.\n"); + eq->cons_index = 0; + } + } + + set_eq_cons_index_v1(eq, 0); + + return ceqes_found; +} + +static irqreturn_t hns_roce_v1_msix_interrupt_eq(int irq, void *eq_ptr) +{ + struct hns_roce_eq *eq = eq_ptr; + struct hns_roce_dev *hr_dev = eq->hr_dev; + int int_work = 0; + + if (eq->type_flag == HNS_ROCE_CEQ) + /* CEQ irq routine, CEQ is pulse irq, not clear */ + int_work = hns_roce_v1_ceq_int(hr_dev, eq); + else + /* AEQ irq routine, AEQ is pulse irq, not clear */ + int_work = hns_roce_v1_aeq_int(hr_dev, eq); + + return IRQ_RETVAL(int_work); +} + +static irqreturn_t hns_roce_v1_msix_interrupt_abn(int irq, void *dev_id) +{ + struct hns_roce_dev *hr_dev = dev_id; + struct device *dev = &hr_dev->pdev->dev; + int int_work = 0; + u32 caepaemask_val; + u32 cealmovf_val; + u32 caepaest_val; + u32 aeshift_val; + u32 ceshift_val; + u32 cemask_val; + __le32 tmp; + int i; + + /* + * Abnormal interrupt: + * AEQ overflow, ECC multi-bit err, CEQ overflow must clear + * interrupt, mask irq, clear irq, cancel mask operation + */ + aeshift_val = roce_read(hr_dev, ROCEE_CAEP_AEQC_AEQE_SHIFT_REG); + tmp = cpu_to_le32(aeshift_val); + + /* AEQE overflow */ + if (roce_get_bit(tmp, + ROCEE_CAEP_AEQC_AEQE_SHIFT_CAEP_AEQ_ALM_OVF_INT_ST_S) == 1) { + dev_warn(dev, "AEQ overflow!\n"); + + /* Set mask */ + caepaemask_val = roce_read(hr_dev, ROCEE_CAEP_AE_MASK_REG); + tmp = cpu_to_le32(caepaemask_val); + roce_set_bit(tmp, ROCEE_CAEP_AE_MASK_CAEP_AEQ_ALM_OVF_MASK_S, + HNS_ROCE_INT_MASK_ENABLE); + caepaemask_val = le32_to_cpu(tmp); + roce_write(hr_dev, ROCEE_CAEP_AE_MASK_REG, caepaemask_val); + + /* Clear int state(INT_WC : write 1 clear) */ + caepaest_val = roce_read(hr_dev, ROCEE_CAEP_AE_ST_REG); + tmp = cpu_to_le32(caepaest_val); + roce_set_bit(tmp, ROCEE_CAEP_AE_ST_CAEP_AEQ_ALM_OVF_S, 1); + caepaest_val = le32_to_cpu(tmp); + roce_write(hr_dev, ROCEE_CAEP_AE_ST_REG, caepaest_val); + + /* Clear mask */ + caepaemask_val = roce_read(hr_dev, ROCEE_CAEP_AE_MASK_REG); + tmp = cpu_to_le32(caepaemask_val); + roce_set_bit(tmp, ROCEE_CAEP_AE_MASK_CAEP_AEQ_ALM_OVF_MASK_S, + HNS_ROCE_INT_MASK_DISABLE); + caepaemask_val = le32_to_cpu(tmp); + roce_write(hr_dev, ROCEE_CAEP_AE_MASK_REG, caepaemask_val); + } + + /* CEQ almost overflow */ + for (i = 0; i < hr_dev->caps.num_comp_vectors; i++) { + ceshift_val = roce_read(hr_dev, ROCEE_CAEP_CEQC_SHIFT_0_REG + + i * CEQ_REG_OFFSET); + tmp = cpu_to_le32(ceshift_val); + + if (roce_get_bit(tmp, + ROCEE_CAEP_CEQC_SHIFT_CAEP_CEQ_ALM_OVF_INT_ST_S) == 1) { + dev_warn(dev, "CEQ[%d] almost overflow!\n", i); + int_work++; + + /* Set mask */ + cemask_val = roce_read(hr_dev, + ROCEE_CAEP_CE_IRQ_MASK_0_REG + + i * CEQ_REG_OFFSET); + tmp = cpu_to_le32(cemask_val); + roce_set_bit(tmp, + ROCEE_CAEP_CE_IRQ_MASK_CAEP_CEQ_ALM_OVF_MASK_S, + HNS_ROCE_INT_MASK_ENABLE); + cemask_val = le32_to_cpu(tmp); + roce_write(hr_dev, ROCEE_CAEP_CE_IRQ_MASK_0_REG + + i * CEQ_REG_OFFSET, cemask_val); + + /* Clear int state(INT_WC : write 1 clear) */ + cealmovf_val = roce_read(hr_dev, + ROCEE_CAEP_CEQ_ALM_OVF_0_REG + + i * CEQ_REG_OFFSET); + tmp = cpu_to_le32(cealmovf_val); + roce_set_bit(tmp, + ROCEE_CAEP_CEQ_ALM_OVF_CAEP_CEQ_ALM_OVF_S, + 1); + cealmovf_val = le32_to_cpu(tmp); + roce_write(hr_dev, ROCEE_CAEP_CEQ_ALM_OVF_0_REG + + i * CEQ_REG_OFFSET, cealmovf_val); + + /* Clear mask */ + cemask_val = roce_read(hr_dev, + ROCEE_CAEP_CE_IRQ_MASK_0_REG + + i * CEQ_REG_OFFSET); + tmp = cpu_to_le32(cemask_val); + roce_set_bit(tmp, + ROCEE_CAEP_CE_IRQ_MASK_CAEP_CEQ_ALM_OVF_MASK_S, + HNS_ROCE_INT_MASK_DISABLE); + cemask_val = le32_to_cpu(tmp); + roce_write(hr_dev, ROCEE_CAEP_CE_IRQ_MASK_0_REG + + i * CEQ_REG_OFFSET, cemask_val); + } + } + + /* ECC multi-bit error alarm */ + dev_warn(dev, "ECC UCERR ALARM: 0x%x, 0x%x, 0x%x\n", + roce_read(hr_dev, ROCEE_ECC_UCERR_ALM0_REG), + roce_read(hr_dev, ROCEE_ECC_UCERR_ALM1_REG), + roce_read(hr_dev, ROCEE_ECC_UCERR_ALM2_REG)); + + dev_warn(dev, "ECC CERR ALARM: 0x%x, 0x%x, 0x%x\n", + roce_read(hr_dev, ROCEE_ECC_CERR_ALM0_REG), + roce_read(hr_dev, ROCEE_ECC_CERR_ALM1_REG), + roce_read(hr_dev, ROCEE_ECC_CERR_ALM2_REG)); + + return IRQ_RETVAL(int_work); +} + +static void hns_roce_v1_int_mask_enable(struct hns_roce_dev *hr_dev) +{ + u32 aemask_val; + int masken = 0; + __le32 tmp; + int i; + + /* AEQ INT */ + aemask_val = roce_read(hr_dev, ROCEE_CAEP_AE_MASK_REG); + tmp = cpu_to_le32(aemask_val); + roce_set_bit(tmp, ROCEE_CAEP_AE_MASK_CAEP_AEQ_ALM_OVF_MASK_S, + masken); + roce_set_bit(tmp, ROCEE_CAEP_AE_MASK_CAEP_AE_IRQ_MASK_S, masken); + aemask_val = le32_to_cpu(tmp); + roce_write(hr_dev, ROCEE_CAEP_AE_MASK_REG, aemask_val); + + /* CEQ INT */ + for (i = 0; i < hr_dev->caps.num_comp_vectors; i++) { + /* IRQ mask */ + roce_write(hr_dev, ROCEE_CAEP_CE_IRQ_MASK_0_REG + + i * CEQ_REG_OFFSET, masken); + } +} + +static void hns_roce_v1_free_eq(struct hns_roce_dev *hr_dev, + struct hns_roce_eq *eq) +{ + int npages = (PAGE_ALIGN(eq->eqe_size * eq->entries) + + HNS_ROCE_BA_SIZE - 1) / HNS_ROCE_BA_SIZE; + int i; + + if (!eq->buf_list) + return; + + for (i = 0; i < npages; ++i) + dma_free_coherent(&hr_dev->pdev->dev, HNS_ROCE_BA_SIZE, + eq->buf_list[i].buf, eq->buf_list[i].map); + + kfree(eq->buf_list); +} + +static void hns_roce_v1_enable_eq(struct hns_roce_dev *hr_dev, int eq_num, + int enable_flag) +{ + void __iomem *eqc = hr_dev->eq_table.eqc_base[eq_num]; + __le32 tmp; + u32 val; + + val = readl(eqc); + tmp = cpu_to_le32(val); + + if (enable_flag) + roce_set_field(tmp, + ROCEE_CAEP_AEQC_AEQE_SHIFT_CAEP_AEQC_STATE_M, + ROCEE_CAEP_AEQC_AEQE_SHIFT_CAEP_AEQC_STATE_S, + HNS_ROCE_EQ_STAT_VALID); + else + roce_set_field(tmp, + ROCEE_CAEP_AEQC_AEQE_SHIFT_CAEP_AEQC_STATE_M, + ROCEE_CAEP_AEQC_AEQE_SHIFT_CAEP_AEQC_STATE_S, + HNS_ROCE_EQ_STAT_INVALID); + + val = le32_to_cpu(tmp); + writel(val, eqc); +} + +static int hns_roce_v1_create_eq(struct hns_roce_dev *hr_dev, + struct hns_roce_eq *eq) +{ + void __iomem *eqc = hr_dev->eq_table.eqc_base[eq->eqn]; + struct device *dev = &hr_dev->pdev->dev; + dma_addr_t tmp_dma_addr; + u32 eqconsindx_val = 0; + u32 eqcuridx_val = 0; + u32 eqshift_val = 0; + __le32 tmp2 = 0; + __le32 tmp1 = 0; + __le32 tmp = 0; + int num_bas; + int ret; + int i; + + num_bas = (PAGE_ALIGN(eq->entries * eq->eqe_size) + + HNS_ROCE_BA_SIZE - 1) / HNS_ROCE_BA_SIZE; + + if ((eq->entries * eq->eqe_size) > HNS_ROCE_BA_SIZE) { + dev_err(dev, "[error]eq buf %d gt ba size(%d) need bas=%d\n", + (eq->entries * eq->eqe_size), HNS_ROCE_BA_SIZE, + num_bas); + return -EINVAL; + } + + eq->buf_list = kcalloc(num_bas, sizeof(*eq->buf_list), GFP_KERNEL); + if (!eq->buf_list) + return -ENOMEM; + + for (i = 0; i < num_bas; ++i) { + eq->buf_list[i].buf = dma_alloc_coherent(dev, HNS_ROCE_BA_SIZE, + &tmp_dma_addr, + GFP_KERNEL); + if (!eq->buf_list[i].buf) { + ret = -ENOMEM; + goto err_out_free_pages; + } + + eq->buf_list[i].map = tmp_dma_addr; + memset(eq->buf_list[i].buf, 0, HNS_ROCE_BA_SIZE); + } + eq->cons_index = 0; + roce_set_field(tmp, ROCEE_CAEP_AEQC_AEQE_SHIFT_CAEP_AEQC_STATE_M, + ROCEE_CAEP_AEQC_AEQE_SHIFT_CAEP_AEQC_STATE_S, + HNS_ROCE_EQ_STAT_INVALID); + roce_set_field(tmp, ROCEE_CAEP_AEQC_AEQE_SHIFT_CAEP_AEQC_AEQE_SHIFT_M, + ROCEE_CAEP_AEQC_AEQE_SHIFT_CAEP_AEQC_AEQE_SHIFT_S, + eq->log_entries); + eqshift_val = le32_to_cpu(tmp); + writel(eqshift_val, eqc); + + /* Configure eq extended address 12~44bit */ + writel((u32)(eq->buf_list[0].map >> 12), eqc + 4); + + /* + * Configure eq extended address 45~49 bit. + * 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(tmp1, ROCEE_CAEP_AEQE_CUR_IDX_CAEP_AEQ_BT_H_M, + ROCEE_CAEP_AEQE_CUR_IDX_CAEP_AEQ_BT_H_S, + eq->buf_list[0].map >> 44); + roce_set_field(tmp1, ROCEE_CAEP_AEQE_CUR_IDX_CAEP_AEQE_CUR_IDX_M, + ROCEE_CAEP_AEQE_CUR_IDX_CAEP_AEQE_CUR_IDX_S, 0); + eqcuridx_val = le32_to_cpu(tmp1); + writel(eqcuridx_val, eqc + 8); + + /* Configure eq consumer index */ + roce_set_field(tmp2, ROCEE_CAEP_AEQE_CONS_IDX_CAEP_AEQE_CONS_IDX_M, + ROCEE_CAEP_AEQE_CONS_IDX_CAEP_AEQE_CONS_IDX_S, 0); + eqconsindx_val = le32_to_cpu(tmp2); + writel(eqconsindx_val, eqc + 0xc); + + return 0; + +err_out_free_pages: + for (i -= 1; i >= 0; i--) + dma_free_coherent(dev, HNS_ROCE_BA_SIZE, eq->buf_list[i].buf, + eq->buf_list[i].map); + + kfree(eq->buf_list); + return ret; +} + +static int hns_roce_v1_init_eq_table(struct hns_roce_dev *hr_dev) +{ + struct hns_roce_eq_table *eq_table = &hr_dev->eq_table; + struct device *dev = &hr_dev->pdev->dev; + struct hns_roce_eq *eq; + int irq_num; + int eq_num; + int ret; + int i, j; + + eq_num = hr_dev->caps.num_comp_vectors + hr_dev->caps.num_aeq_vectors; + irq_num = eq_num + hr_dev->caps.num_other_vectors; + + eq_table->eq = kcalloc(eq_num, sizeof(*eq_table->eq), GFP_KERNEL); + if (!eq_table->eq) + return -ENOMEM; + + eq_table->eqc_base = kcalloc(eq_num, sizeof(*eq_table->eqc_base), + GFP_KERNEL); + if (!eq_table->eqc_base) { + ret = -ENOMEM; + goto err_eqc_base_alloc_fail; + } + + for (i = 0; i < eq_num; i++) { + eq = &eq_table->eq[i]; + eq->hr_dev = hr_dev; + eq->eqn = i; + eq->irq = hr_dev->irq[i]; + eq->log_page_size = PAGE_SHIFT; + + if (i < hr_dev->caps.num_comp_vectors) { + /* CEQ */ + eq_table->eqc_base[i] = hr_dev->reg_base + + ROCEE_CAEP_CEQC_SHIFT_0_REG + + CEQ_REG_OFFSET * i; + eq->type_flag = HNS_ROCE_CEQ; + eq->doorbell = hr_dev->reg_base + + ROCEE_CAEP_CEQC_CONS_IDX_0_REG + + CEQ_REG_OFFSET * i; + eq->entries = hr_dev->caps.ceqe_depth; + eq->log_entries = ilog2(eq->entries); + eq->eqe_size = HNS_ROCE_CEQ_ENTRY_SIZE; + } else { + /* AEQ */ + eq_table->eqc_base[i] = hr_dev->reg_base + + ROCEE_CAEP_AEQC_AEQE_SHIFT_REG; + eq->type_flag = HNS_ROCE_AEQ; + eq->doorbell = hr_dev->reg_base + + ROCEE_CAEP_AEQE_CONS_IDX_REG; + eq->entries = hr_dev->caps.aeqe_depth; + eq->log_entries = ilog2(eq->entries); + eq->eqe_size = HNS_ROCE_AEQ_ENTRY_SIZE; + } + } + + /* Disable irq */ + hns_roce_v1_int_mask_enable(hr_dev); + + /* Configure ce int interval */ + roce_write(hr_dev, ROCEE_CAEP_CE_INTERVAL_CFG_REG, + HNS_ROCE_CEQ_DEFAULT_INTERVAL); + + /* Configure ce int burst num */ + roce_write(hr_dev, ROCEE_CAEP_CE_BURST_NUM_CFG_REG, + HNS_ROCE_CEQ_DEFAULT_BURST_NUM); + + for (i = 0; i < eq_num; i++) { + ret = hns_roce_v1_create_eq(hr_dev, &eq_table->eq[i]); + if (ret) { + dev_err(dev, "eq create failed\n"); + goto err_create_eq_fail; + } + } + + for (j = 0; j < irq_num; j++) { + if (j < eq_num) + ret = request_irq(hr_dev->irq[j], + hns_roce_v1_msix_interrupt_eq, 0, + hr_dev->irq_names[j], + &eq_table->eq[j]); + else + ret = request_irq(hr_dev->irq[j], + hns_roce_v1_msix_interrupt_abn, 0, + hr_dev->irq_names[j], hr_dev); + + if (ret) { + dev_err(dev, "request irq error!\n"); + goto err_request_irq_fail; + } + } + + for (i = 0; i < eq_num; i++) + hns_roce_v1_enable_eq(hr_dev, i, EQ_ENABLE); + + return 0; + +err_request_irq_fail: + for (j -= 1; j >= 0; j--) + free_irq(hr_dev->irq[j], &eq_table->eq[j]); + +err_create_eq_fail: + for (i -= 1; i >= 0; i--) + hns_roce_v1_free_eq(hr_dev, &eq_table->eq[i]); + + kfree(eq_table->eqc_base); + +err_eqc_base_alloc_fail: + kfree(eq_table->eq); + + return ret; +} + +static void hns_roce_v1_cleanup_eq_table(struct hns_roce_dev *hr_dev) +{ + struct hns_roce_eq_table *eq_table = &hr_dev->eq_table; + int irq_num; + int eq_num; + int i; + + eq_num = hr_dev->caps.num_comp_vectors + hr_dev->caps.num_aeq_vectors; + irq_num = eq_num + hr_dev->caps.num_other_vectors; + for (i = 0; i < eq_num; i++) { + /* Disable EQ */ + hns_roce_v1_enable_eq(hr_dev, i, EQ_DISABLE); + + free_irq(hr_dev->irq[i], &eq_table->eq[i]); + + hns_roce_v1_free_eq(hr_dev, &eq_table->eq[i]); + } + for (i = eq_num; i < irq_num; i++) + free_irq(hr_dev->irq[i], hr_dev); + + kfree(eq_table->eqc_base); + kfree(eq_table->eq); +} + +static const 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, + .post_mbox = hns_roce_v1_post_mbox, + .chk_mbox = hns_roce_v1_chk_mbox, + .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, + .modify_cq = hns_roce_v1_modify_cq, + .clear_hem = hns_roce_v1_clear_hem, + .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, + .dereg_mr = hns_roce_v1_dereg_mr, + .destroy_cq = hns_roce_v1_destroy_cq, + .init_eq = hns_roce_v1_init_eq_table, + .cleanup_eq = hns_roce_v1_cleanup_eq_table, +}; + +static const struct of_device_id hns_roce_of_match[] = { + { .compatible = "hisilicon,hns-roce-v1", .data = &hns_roce_hw_v1, }, + {}, +}; +MODULE_DEVICE_TABLE(of, hns_roce_of_match); + +static const struct acpi_device_id hns_roce_acpi_match[] = { + { "HISI00D1", (kernel_ulong_t)&hns_roce_hw_v1 }, + {}, +}; +MODULE_DEVICE_TABLE(acpi, hns_roce_acpi_match); + +static int hns_roce_node_match(struct device *dev, void *fwnode) +{ + return dev->fwnode == fwnode; +} + +static struct +platform_device *hns_roce_find_pdev(struct fwnode_handle *fwnode) +{ + struct device *dev; + + /* get the 'device' corresponding to the matching 'fwnode' */ + dev = bus_find_device(&platform_bus_type, NULL, + fwnode, hns_roce_node_match); + /* get the platform device */ + return dev ? to_platform_device(dev) : NULL; +} + +static int hns_roce_get_cfg(struct hns_roce_dev *hr_dev) +{ + struct device *dev = &hr_dev->pdev->dev; + struct platform_device *pdev = NULL; + struct net_device *netdev = NULL; + struct device_node *net_node; + struct resource *res; + int port_cnt = 0; + u8 phy_port; + int ret; + int i; + + /* check if we are compatible with the underlying SoC */ + if (dev_of_node(dev)) { + const struct of_device_id *of_id; + + of_id = of_match_node(hns_roce_of_match, dev->of_node); + if (!of_id) { + dev_err(dev, "device is not compatible!\n"); + return -ENXIO; + } + hr_dev->hw = (const struct hns_roce_hw *)of_id->data; + if (!hr_dev->hw) { + dev_err(dev, "couldn't get H/W specific DT data!\n"); + return -ENXIO; + } + } else if (is_acpi_device_node(dev->fwnode)) { + const struct acpi_device_id *acpi_id; + + acpi_id = acpi_match_device(hns_roce_acpi_match, dev); + if (!acpi_id) { + dev_err(dev, "device is not compatible!\n"); + return -ENXIO; + } + hr_dev->hw = (const struct hns_roce_hw *) acpi_id->driver_data; + if (!hr_dev->hw) { + dev_err(dev, "couldn't get H/W specific ACPI data!\n"); + return -ENXIO; + } + } else { + dev_err(dev, "can't read compatibility data from DT or ACPI\n"); + return -ENXIO; + } + + /* get the mapped register base address */ + res = platform_get_resource(hr_dev->pdev, IORESOURCE_MEM, 0); + hr_dev->reg_base = devm_ioremap_resource(dev, res); + if (IS_ERR(hr_dev->reg_base)) + return PTR_ERR(hr_dev->reg_base); + + /* read the node_guid of IB device from the DT or ACPI */ + ret = device_property_read_u8_array(dev, "node-guid", + (u8 *)&hr_dev->ib_dev.node_guid, + GUID_LEN); + if (ret) { + dev_err(dev, "couldn't get node_guid from DT or ACPI!\n"); + return ret; + } + + /* get the RoCE associated ethernet ports or netdevices */ + for (i = 0; i < HNS_ROCE_MAX_PORTS; i++) { + if (dev_of_node(dev)) { + net_node = of_parse_phandle(dev->of_node, "eth-handle", + i); + if (!net_node) + continue; + pdev = of_find_device_by_node(net_node); + } else if (is_acpi_device_node(dev->fwnode)) { + struct fwnode_reference_args args; + + ret = acpi_node_get_property_reference(dev->fwnode, + "eth-handle", + i, &args); + if (ret) + continue; + pdev = hns_roce_find_pdev(args.fwnode); + } else { + dev_err(dev, "cannot read data from DT or ACPI\n"); + return -ENXIO; + } + + if (pdev) { + netdev = platform_get_drvdata(pdev); + phy_port = (u8)i; + if (netdev) { + hr_dev->iboe.netdevs[port_cnt] = netdev; + hr_dev->iboe.phy_port[port_cnt] = phy_port; + } else { + dev_err(dev, "no netdev found with pdev %s\n", + pdev->name); + return -ENODEV; + } + port_cnt++; + } + } + + if (port_cnt == 0) { + dev_err(dev, "unable to get eth-handle for available ports!\n"); + return -EINVAL; + } + + hr_dev->caps.num_ports = port_cnt; + + /* cmd issue mode: 0 is poll, 1 is event */ + hr_dev->cmd_mod = 1; + hr_dev->loop_idc = 0; + hr_dev->sdb_offset = ROCEE_DB_SQ_L_0_REG; + hr_dev->odb_offset = ROCEE_DB_OTHERS_L_0_REG; + + /* read the interrupt names from the DT or ACPI */ + ret = device_property_read_string_array(dev, "interrupt-names", + hr_dev->irq_names, + HNS_ROCE_V1_MAX_IRQ_NUM); + if (ret < 0) { + dev_err(dev, "couldn't get interrupt names from DT or ACPI!\n"); + return ret; + } + + /* fetch the interrupt numbers */ + for (i = 0; i < HNS_ROCE_V1_MAX_IRQ_NUM; i++) { + hr_dev->irq[i] = platform_get_irq(hr_dev->pdev, i); + if (hr_dev->irq[i] <= 0) { + dev_err(dev, "platform get of irq[=%d] failed!\n", i); + return -EINVAL; + } + } + + return 0; +} + +/** + * hns_roce_probe - RoCE driver entrance + * @pdev: pointer to platform device + * Return : int + * + */ +static int hns_roce_probe(struct platform_device *pdev) +{ + int ret; + struct hns_roce_dev *hr_dev; + struct device *dev = &pdev->dev; + + hr_dev = (struct hns_roce_dev *)ib_alloc_device(sizeof(*hr_dev)); + if (!hr_dev) + return -ENOMEM; + + hr_dev->priv = kzalloc(sizeof(struct hns_roce_v1_priv), GFP_KERNEL); + if (!hr_dev->priv) { + ret = -ENOMEM; + goto error_failed_kzalloc; + } + + hr_dev->pdev = pdev; + hr_dev->dev = dev; + platform_set_drvdata(pdev, hr_dev); + + if (dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64ULL)) && + dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32ULL))) { + dev_err(dev, "Not usable DMA addressing mode\n"); + ret = -EIO; + goto error_failed_get_cfg; + } + + ret = hns_roce_get_cfg(hr_dev); + if (ret) { + dev_err(dev, "Get Configuration failed!\n"); + goto error_failed_get_cfg; + } + + ret = hns_roce_init(hr_dev); + if (ret) { + dev_err(dev, "RoCE engine init failed!\n"); + goto error_failed_get_cfg; + } + + return 0; + +error_failed_get_cfg: + kfree(hr_dev->priv); + +error_failed_kzalloc: + ib_dealloc_device(&hr_dev->ib_dev); + + return ret; +} + +/** + * hns_roce_remove - remove RoCE device + * @pdev: pointer to platform device + */ +static int hns_roce_remove(struct platform_device *pdev) +{ + struct hns_roce_dev *hr_dev = platform_get_drvdata(pdev); + + hns_roce_exit(hr_dev); + kfree(hr_dev->priv); + ib_dealloc_device(&hr_dev->ib_dev); + + return 0; +} + +static struct platform_driver hns_roce_driver = { + .probe = hns_roce_probe, + .remove = hns_roce_remove, + .driver = { + .name = DRV_NAME, + .of_match_table = hns_roce_of_match, + .acpi_match_table = ACPI_PTR(hns_roce_acpi_match), + }, +}; + +module_platform_driver(hns_roce_driver); + +MODULE_LICENSE("Dual BSD/GPL"); +MODULE_AUTHOR("Wei Hu <xavier.huwei@huawei.com>"); +MODULE_AUTHOR("Nenglong Zhao <zhaonenglong@hisilicon.com>"); +MODULE_AUTHOR("Lijun Ou <oulijun@huawei.com>"); +MODULE_DESCRIPTION("Hisilicon Hip06 Family RoCE Driver"); |