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linux/drivers/infiniband/hw/hns/hns_roce_hw_v1.c

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/*
* Copyright (c) 2016 Hisilicon Limited.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <linux/platform_device.h>
#include <linux/acpi.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;
}
int hns_roce_v1_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
struct ib_send_wr **bad_wr)
{
struct hns_roce_dev *hr_dev = to_hr_dev(ibqp->device);
struct hns_roce_ah *ah = to_hr_ah(ud_wr(wr)->ah);
struct hns_roce_ud_send_wqe *ud_sq_wqe = NULL;
struct hns_roce_wqe_ctrl_seg *ctrl = NULL;
struct hns_roce_wqe_data_seg *dseg = NULL;
struct hns_roce_qp *qp = to_hr_qp(ibqp);
struct device *dev = &hr_dev->pdev->dev;
struct hns_roce_sq_db sq_db;
int ps_opcode = 0, i = 0;
unsigned long flags = 0;
void *wqe = NULL;
u32 doorbell[2];
int nreq = 0;
u32 ind = 0;
int ret = 0;
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]);
roce_set_field(ud_sq_wqe->u32_8,
UD_SEND_WQE_U32_8_OPERATION_TYPE_M,
UD_SEND_WQE_U32_8_OPERATION_TYPE_S,
HNS_ROCE_WQE_OPCODE_SEND);
roce_set_field(ud_sq_wqe->u32_8,
UD_SEND_WQE_U32_8_NUMBER_OF_DATA_SEG_M,
UD_SEND_WQE_U32_8_NUMBER_OF_DATA_SEG_S,
2);
roce_set_bit(ud_sq_wqe->u32_8,
UD_SEND_WQE_U32_8_SEND_GL_ROUTING_HDR_FLAG_S,
1);
ud_sq_wqe->u32_8 |= (wr->send_flags & IB_SEND_SIGNALED ?
cpu_to_le32(HNS_ROCE_WQE_CQ_NOTIFY) : 0) |
(wr->send_flags & IB_SEND_SOLICITED ?
cpu_to_le32(HNS_ROCE_WQE_SE) : 0) |
((wr->opcode == IB_WR_SEND_WITH_IMM) ?
cpu_to_le32(HNS_ROCE_WQE_IMM) : 0);
roce_set_field(ud_sq_wqe->u32_16,
UD_SEND_WQE_U32_16_DEST_QP_M,
UD_SEND_WQE_U32_16_DEST_QP_S,
ud_wr(wr)->remote_qpn);
roce_set_field(ud_sq_wqe->u32_16,
UD_SEND_WQE_U32_16_MAX_STATIC_RATE_M,
UD_SEND_WQE_U32_16_MAX_STATIC_RATE_S,
ah->av.stat_rate);
roce_set_field(ud_sq_wqe->u32_36,
UD_SEND_WQE_U32_36_FLOW_LABEL_M,
UD_SEND_WQE_U32_36_FLOW_LABEL_S, 0);
roce_set_field(ud_sq_wqe->u32_36,
UD_SEND_WQE_U32_36_PRIORITY_M,
UD_SEND_WQE_U32_36_PRIORITY_S,
ah->av.sl_tclass_flowlabel >>
HNS_ROCE_SL_SHIFT);
roce_set_field(ud_sq_wqe->u32_36,
UD_SEND_WQE_U32_36_SGID_INDEX_M,
UD_SEND_WQE_U32_36_SGID_INDEX_S,
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, 0);
memcpy(&ud_sq_wqe->dgid[0], &ah->av.dgid[0], GID_LEN);
ud_sq_wqe->va0_l = (u32)wr->sg_list[0].addr;
ud_sq_wqe->va0_h = (wr->sg_list[0].addr) >> 32;
ud_sq_wqe->l_key0 = wr->sg_list[0].lkey;
ud_sq_wqe->va1_l = (u32)wr->sg_list[1].addr;
ud_sq_wqe->va1_h = (wr->sg_list[1].addr) >> 32;
ud_sq_wqe->l_key1 = wr->sg_list[1].lkey;
ind++;
} else if (ibqp->qp_type == IB_QPT_RC) {
ctrl = wqe;
memset(ctrl, 0, sizeof(struct hns_roce_wqe_ctrl_seg));
for (i = 0; i < wr->num_sge; i++)
ctrl->msg_length += wr->sg_list[i].length;
ctrl->sgl_pa_h = 0;
ctrl->flag = 0;
ctrl->imm_data = send_ieth(wr);
/*Ctrl field, ctrl set type: sig, solic, imm, fence */
/* SO wait for conforming application scenarios */
ctrl->flag |= (wr->send_flags & IB_SEND_SIGNALED ?
cpu_to_le32(HNS_ROCE_WQE_CQ_NOTIFY) : 0) |
(wr->send_flags & IB_SEND_SOLICITED ?
cpu_to_le32(HNS_ROCE_WQE_SE) : 0) |
((wr->opcode == IB_WR_SEND_WITH_IMM ||
wr->opcode == IB_WR_RDMA_WRITE_WITH_IMM) ?
cpu_to_le32(HNS_ROCE_WQE_IMM) : 0) |
(wr->send_flags & IB_SEND_FENCE ?
(cpu_to_le32(HNS_ROCE_WQE_FENCE)) : 0);
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, atomic_wr(wr)->remote_addr,
atomic_wr(wr)->rkey);
break;
case IB_WR_RDMA_WRITE:
case IB_WR_RDMA_WRITE_WITH_IMM:
ps_opcode = HNS_ROCE_WQE_OPCODE_RDMA_WRITE;
set_raddr_seg(wqe, atomic_wr(wr)->remote_addr,
atomic_wr(wr)->rkey);
break;
case IB_WR_SEND:
case IB_WR_SEND_WITH_INV:
case IB_WR_SEND_WITH_IMM:
ps_opcode = HNS_ROCE_WQE_OPCODE_SEND;
break;
case IB_WR_LOCAL_INV:
break;
case IB_WR_ATOMIC_CMP_AND_SWP:
case IB_WR_ATOMIC_FETCH_AND_ADD:
case IB_WR_LSO:
default:
ps_opcode = HNS_ROCE_WQE_OPCODE_MASK;
break;
}
ctrl->flag |= cpu_to_le32(ps_opcode);
wqe += sizeof(struct hns_roce_wqe_raddr_seg);
dseg = wqe;
if (wr->send_flags & IB_SEND_INLINE && wr->num_sge) {
if (ctrl->msg_length >
hr_dev->caps.max_sq_inline) {
ret = -EINVAL;
*bad_wr = wr;
dev_err(dev, "inline len(1-%d)=%d, illegal",
ctrl->msg_length,
hr_dev->caps.max_sq_inline);
goto out;
}
for (i = 0; i < wr->num_sge; i++) {
memcpy(wqe, ((void *) (uintptr_t)
wr->sg_list[i].addr),
wr->sg_list[i].length);
wqe += wr->sg_list[i].length;
}
ctrl->flag |= HNS_ROCE_WQE_INLINE;
} else {
/*sqe num is two */
for (i = 0; i < wr->num_sge; i++)
set_data_seg(dseg + i, wr->sg_list + i);
ctrl->flag |= cpu_to_le32(wr->num_sge <<
HNS_ROCE_WQE_SGE_NUM_BIT);
}
ind++;
} else {
dev_dbg(dev, "unSupported QP type\n");
break;
}
}
out:
/* Set DB return */
if (likely(nreq)) {
qp->sq.head += nreq;
/* Memory barrier */
wmb();
sq_db.u32_4 = 0;
sq_db.u32_8 = 0;
roce_set_field(sq_db.u32_4, SQ_DOORBELL_U32_4_SQ_HEAD_M,
SQ_DOORBELL_U32_4_SQ_HEAD_S,
(qp->sq.head & ((qp->sq.wqe_cnt << 1) - 1)));
roce_set_field(sq_db.u32_4, SQ_DOORBELL_U32_4_PORT_M,
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] = sq_db.u32_4;
doorbell[1] = sq_db.u32_8;
hns_roce_write64_k(doorbell, qp->sq.db_reg_l);
qp->sq_next_wqe = ind;
}
spin_unlock_irqrestore(&qp->sq.lock, flags);
return ret;
}
int hns_roce_v1_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr,
struct ib_recv_wr **bad_wr)
{
int ret = 0;
int nreq = 0;
int ind = 0;
int i = 0;
u32 reg_val = 0;
unsigned long flags = 0;
struct hns_roce_rq_wqe_ctrl *ctrl = NULL;
struct hns_roce_wqe_data_seg *scat = NULL;
struct hns_roce_qp *hr_qp = to_hr_qp(ibqp);
struct hns_roce_dev *hr_dev = to_hr_dev(ibqp->device);
struct device *dev = &hr_dev->pdev->dev;
struct hns_roce_rq_db rq_db;
uint32_t doorbell[2] = {0};
spin_lock_irqsave(&hr_qp->rq.lock, flags);
ind = hr_qp->rq.head & (hr_qp->rq.wqe_cnt - 1);
for (nreq = 0; wr; ++nreq, wr = wr->next) {
if (hns_roce_wq_overflow(&hr_qp->rq, nreq,
hr_qp->ibqp.recv_cq)) {
ret = -ENOMEM;
*bad_wr = wr;
goto out;
}
if (unlikely(wr->num_sge > hr_qp->rq.max_gs)) {
dev_err(dev, "rq:num_sge=%d > qp->sq.max_gs=%d\n",
wr->num_sge, hr_qp->rq.max_gs);
ret = -EINVAL;
*bad_wr = wr;
goto out;
}
ctrl = get_recv_wqe(hr_qp, ind);
roce_set_field(ctrl->rwqe_byte_12,
RQ_WQE_CTRL_RWQE_BYTE_12_RWQE_SGE_NUM_M,
RQ_WQE_CTRL_RWQE_BYTE_12_RWQE_SGE_NUM_S,
wr->num_sge);
scat = (struct hns_roce_wqe_data_seg *)(ctrl + 1);
for (i = 0; i < wr->num_sge; i++)
set_data_seg(scat + i, wr->sg_list + i);
hr_qp->rq.wrid[ind] = wr->wr_id;
ind = (ind + 1) & (hr_qp->rq.wqe_cnt - 1);
}
out:
if (likely(nreq)) {
hr_qp->rq.head += nreq;
/* Memory barrier */
wmb();
if (ibqp->qp_type == IB_QPT_GSI) {
/* SW update GSI rq header */
reg_val = roce_read(to_hr_dev(ibqp->device),
ROCEE_QP1C_CFG3_0_REG +
QP1C_CFGN_OFFSET * hr_qp->phy_port);
roce_set_field(reg_val,
ROCEE_QP1C_CFG3_0_ROCEE_QP1C_RQ_HEAD_M,
ROCEE_QP1C_CFG3_0_ROCEE_QP1C_RQ_HEAD_S,
hr_qp->rq.head);
roce_write(to_hr_dev(ibqp->device),
ROCEE_QP1C_CFG3_0_REG +
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] = rq_db.u32_4;
doorbell[1] = rq_db.u32_8;
hns_roce_write64_k(doorbell, hr_qp->rq.db_reg_l);
}
}
spin_unlock_irqrestore(&hr_qp->rq.lock, flags);
return ret;
}
static void hns_roce_set_db_event_mode(struct hns_roce_dev *hr_dev,
int sdb_mode, int odb_mode)
{
u32 val;
val = roce_read(hr_dev, ROCEE_GLB_CFG_REG);
roce_set_bit(val, ROCEE_GLB_CFG_ROCEE_DB_SQ_MODE_S, sdb_mode);
roce_set_bit(val, ROCEE_GLB_CFG_ROCEE_DB_OTH_MODE_S, odb_mode);
roce_write(hr_dev, ROCEE_GLB_CFG_REG, val);
}
static void hns_roce_set_db_ext_mode(struct hns_roce_dev *hr_dev, u32 sdb_mode,
u32 odb_mode)
{
u32 val;
/* Configure SDB/ODB extend mode */
val = roce_read(hr_dev, ROCEE_GLB_CFG_REG);
roce_set_bit(val, ROCEE_GLB_CFG_SQ_EXT_DB_MODE_S, sdb_mode);
roce_set_bit(val, ROCEE_GLB_CFG_OTH_EXT_DB_MODE_S, odb_mode);
roce_write(hr_dev, ROCEE_GLB_CFG_REG, val);
}
static void hns_roce_set_sdb(struct hns_roce_dev *hr_dev, u32 sdb_alept,
u32 sdb_alful)
{
u32 val;
/* Configure SDB */
val = roce_read(hr_dev, ROCEE_DB_SQ_WL_REG);
roce_set_field(val, ROCEE_DB_SQ_WL_ROCEE_DB_SQ_WL_M,
ROCEE_DB_SQ_WL_ROCEE_DB_SQ_WL_S, sdb_alful);
roce_set_field(val, ROCEE_DB_SQ_WL_ROCEE_DB_SQ_WL_EMPTY_M,
ROCEE_DB_SQ_WL_ROCEE_DB_SQ_WL_EMPTY_S, sdb_alept);
roce_write(hr_dev, ROCEE_DB_SQ_WL_REG, val);
}
static void hns_roce_set_odb(struct hns_roce_dev *hr_dev, u32 odb_alept,
u32 odb_alful)
{
u32 val;
/* Configure ODB */
val = roce_read(hr_dev, ROCEE_DB_OTHERS_WL_REG);
roce_set_field(val, ROCEE_DB_OTHERS_WL_ROCEE_DB_OTH_WL_M,
ROCEE_DB_OTHERS_WL_ROCEE_DB_OTH_WL_S, odb_alful);
roce_set_field(val, ROCEE_DB_OTHERS_WL_ROCEE_DB_OTH_WL_EMPTY_M,
ROCEE_DB_OTHERS_WL_ROCEE_DB_OTH_WL_EMPTY_S, odb_alept);
roce_write(hr_dev, ROCEE_DB_OTHERS_WL_REG, val);
}
static void hns_roce_set_sdb_ext(struct hns_roce_dev *hr_dev, u32 ext_sdb_alept,
u32 ext_sdb_alful)
{
struct device *dev = &hr_dev->pdev->dev;
struct hns_roce_v1_priv *priv;
struct hns_roce_db_table *db;
dma_addr_t sdb_dma_addr;
u32 val;
priv = (struct hns_roce_v1_priv *)hr_dev->hw->priv;
db = &priv->db_table;
/* Configure extend SDB threshold */
roce_write(hr_dev, ROCEE_EXT_DB_SQ_WL_EMPTY_REG, ext_sdb_alept);
roce_write(hr_dev, ROCEE_EXT_DB_SQ_WL_REG, ext_sdb_alful);
/* Configure extend SDB base addr */
sdb_dma_addr = db->ext_db->sdb_buf_list->map;
roce_write(hr_dev, ROCEE_EXT_DB_SQ_REG, (u32)(sdb_dma_addr >> 12));
/* Configure extend SDB depth */
val = roce_read(hr_dev, ROCEE_EXT_DB_SQ_H_REG);
roce_set_field(val, ROCEE_EXT_DB_SQ_H_EXT_DB_SQ_SHIFT_M,
ROCEE_EXT_DB_SQ_H_EXT_DB_SQ_SHIFT_S,
db->ext_db->esdb_dep);
/*
* 44 = 32 + 12, When evaluating addr to hardware, shift 12 because of
* using 4K page, and shift more 32 because of
* caculating the high 32 bit value evaluated to hardware.
*/
roce_set_field(val, ROCEE_EXT_DB_SQ_H_EXT_DB_SQ_BA_H_M,
ROCEE_EXT_DB_SQ_H_EXT_DB_SQ_BA_H_S, sdb_dma_addr >> 44);
roce_write(hr_dev, ROCEE_EXT_DB_SQ_H_REG, val);
dev_dbg(dev, "ext SDB depth: 0x%x\n", db->ext_db->esdb_dep);
dev_dbg(dev, "ext SDB threshold: epmty: 0x%x, ful: 0x%x\n",
ext_sdb_alept, ext_sdb_alful);
}
static void hns_roce_set_odb_ext(struct hns_roce_dev *hr_dev, u32 ext_odb_alept,
u32 ext_odb_alful)
{
struct device *dev = &hr_dev->pdev->dev;
struct hns_roce_v1_priv *priv;
struct hns_roce_db_table *db;
dma_addr_t odb_dma_addr;
u32 val;
priv = (struct hns_roce_v1_priv *)hr_dev->hw->priv;
db = &priv->db_table;
/* Configure extend ODB threshold */
roce_write(hr_dev, ROCEE_EXT_DB_OTHERS_WL_EMPTY_REG, ext_odb_alept);
roce_write(hr_dev, ROCEE_EXT_DB_OTHERS_WL_REG, ext_odb_alful);
/* Configure extend ODB base addr */
odb_dma_addr = db->ext_db->odb_buf_list->map;
roce_write(hr_dev, ROCEE_EXT_DB_OTH_REG, (u32)(odb_dma_addr >> 12));
/* Configure extend ODB depth */
val = roce_read(hr_dev, ROCEE_EXT_DB_OTH_H_REG);
roce_set_field(val, ROCEE_EXT_DB_OTH_H_EXT_DB_OTH_SHIFT_M,
ROCEE_EXT_DB_OTH_H_EXT_DB_OTH_SHIFT_S,
db->ext_db->eodb_dep);
roce_set_field(val, ROCEE_EXT_DB_SQ_H_EXT_DB_OTH_BA_H_M,
ROCEE_EXT_DB_SQ_H_EXT_DB_OTH_BA_H_S,
db->ext_db->eodb_dep);
roce_write(hr_dev, ROCEE_EXT_DB_OTH_H_REG, val);
dev_dbg(dev, "ext ODB depth: 0x%x\n", db->ext_db->eodb_dep);
dev_dbg(dev, "ext ODB threshold: empty: 0x%x, ful: 0x%x\n",
ext_odb_alept, ext_odb_alful);
}
static int hns_roce_db_ext_init(struct hns_roce_dev *hr_dev, u32 sdb_ext_mod,
u32 odb_ext_mod)
{
struct device *dev = &hr_dev->pdev->dev;
struct hns_roce_v1_priv *priv;
struct hns_roce_db_table *db;
dma_addr_t sdb_dma_addr;
dma_addr_t odb_dma_addr;
int ret = 0;
priv = (struct hns_roce_v1_priv *)hr_dev->hw->priv;
db = &priv->db_table;
db->ext_db = kmalloc(sizeof(*db->ext_db), GFP_KERNEL);
if (!db->ext_db)
return -ENOMEM;
if (sdb_ext_mod) {
db->ext_db->sdb_buf_list = kmalloc(
sizeof(*db->ext_db->sdb_buf_list), GFP_KERNEL);
if (!db->ext_db->sdb_buf_list) {
ret = -ENOMEM;
goto ext_sdb_buf_fail_out;
}
db->ext_db->sdb_buf_list->buf = dma_alloc_coherent(dev,
HNS_ROCE_V1_EXT_SDB_SIZE,
&sdb_dma_addr, GFP_KERNEL);
if (!db->ext_db->sdb_buf_list->buf) {
ret = -ENOMEM;
goto alloc_sq_db_buf_fail;
}
db->ext_db->sdb_buf_list->map = sdb_dma_addr;
db->ext_db->esdb_dep = ilog2(HNS_ROCE_V1_EXT_SDB_DEPTH);
hns_roce_set_sdb_ext(hr_dev, HNS_ROCE_V1_EXT_SDB_ALEPT,
HNS_ROCE_V1_EXT_SDB_ALFUL);
} else
hns_roce_set_sdb(hr_dev, HNS_ROCE_V1_SDB_ALEPT,
HNS_ROCE_V1_SDB_ALFUL);
if (odb_ext_mod) {
db->ext_db->odb_buf_list = kmalloc(
sizeof(*db->ext_db->odb_buf_list), GFP_KERNEL);
if (!db->ext_db->odb_buf_list) {
ret = -ENOMEM;
goto ext_odb_buf_fail_out;
}
db->ext_db->odb_buf_list->buf = dma_alloc_coherent(dev,
HNS_ROCE_V1_EXT_ODB_SIZE,
&odb_dma_addr, GFP_KERNEL);
if (!db->ext_db->odb_buf_list->buf) {
ret = -ENOMEM;
goto alloc_otr_db_buf_fail;
}
db->ext_db->odb_buf_list->map = odb_dma_addr;
db->ext_db->eodb_dep = ilog2(HNS_ROCE_V1_EXT_ODB_DEPTH);
hns_roce_set_odb_ext(hr_dev, HNS_ROCE_V1_EXT_ODB_ALEPT,
HNS_ROCE_V1_EXT_ODB_ALFUL);
} else
hns_roce_set_odb(hr_dev, HNS_ROCE_V1_ODB_ALEPT,
HNS_ROCE_V1_ODB_ALFUL);
hns_roce_set_db_ext_mode(hr_dev, sdb_ext_mod, odb_ext_mod);
return 0;
alloc_otr_db_buf_fail:
kfree(db->ext_db->odb_buf_list);
ext_odb_buf_fail_out:
if (sdb_ext_mod) {
dma_free_coherent(dev, HNS_ROCE_V1_EXT_SDB_SIZE,
db->ext_db->sdb_buf_list->buf,
db->ext_db->sdb_buf_list->map);
}
alloc_sq_db_buf_fail:
if (sdb_ext_mod)
kfree(db->ext_db->sdb_buf_list);
ext_sdb_buf_fail_out:
kfree(db->ext_db);
return ret;
}
static int hns_roce_db_init(struct hns_roce_dev *hr_dev)
{
struct device *dev = &hr_dev->pdev->dev;
struct hns_roce_v1_priv *priv;
struct hns_roce_db_table *db;
u32 sdb_ext_mod;
u32 odb_ext_mod;
u32 sdb_evt_mod;
u32 odb_evt_mod;
int ret = 0;
priv = (struct hns_roce_v1_priv *)hr_dev->hw->priv;
db = &priv->db_table;
memset(db, 0, sizeof(*db));
/* Default DB mode */
sdb_ext_mod = HNS_ROCE_SDB_EXTEND_MODE;
odb_ext_mod = HNS_ROCE_ODB_EXTEND_MODE;
sdb_evt_mod = HNS_ROCE_SDB_NORMAL_MODE;
odb_evt_mod = HNS_ROCE_ODB_POLL_MODE;
db->sdb_ext_mod = sdb_ext_mod;
db->odb_ext_mod = odb_ext_mod;
/* Init extend DB */
ret = hns_roce_db_ext_init(hr_dev, sdb_ext_mod, odb_ext_mod);
if (ret) {
dev_err(dev, "Failed in extend DB configuration.\n");
return ret;
}
hns_roce_set_db_event_mode(hr_dev, sdb_evt_mod, odb_evt_mod);
return 0;
}
static void hns_roce_db_free(struct hns_roce_dev *hr_dev)
{
struct device *dev = &hr_dev->pdev->dev;
struct hns_roce_v1_priv *priv;
struct hns_roce_db_table *db;
priv = (struct hns_roce_v1_priv *)hr_dev->hw->priv;
db = &priv->db_table;
if (db->sdb_ext_mod) {
dma_free_coherent(dev, HNS_ROCE_V1_EXT_SDB_SIZE,
db->ext_db->sdb_buf_list->buf,
db->ext_db->sdb_buf_list->map);
kfree(db->ext_db->sdb_buf_list);
}
if (db->odb_ext_mod) {
dma_free_coherent(dev, HNS_ROCE_V1_EXT_ODB_SIZE,
db->ext_db->odb_buf_list->buf,
db->ext_db->odb_buf_list->map);
kfree(db->ext_db->odb_buf_list);
}
kfree(db->ext_db);
}
static int hns_roce_raq_init(struct hns_roce_dev *hr_dev)
{
int ret;
int raq_shift = 0;
dma_addr_t addr;
u32 val;
struct hns_roce_v1_priv *priv;
struct hns_roce_raq_table *raq;
struct device *dev = &hr_dev->pdev->dev;
priv = (struct hns_roce_v1_priv *)hr_dev->hw->priv;
raq = &priv->raq_table;
raq->e_raq_buf = kzalloc(sizeof(*(raq->e_raq_buf)), GFP_KERNEL);
if (!raq->e_raq_buf)
return -ENOMEM;
raq->e_raq_buf->buf = dma_alloc_coherent(dev, HNS_ROCE_V1_RAQ_SIZE,
&addr, GFP_KERNEL);
if (!raq->e_raq_buf->buf) {
ret = -ENOMEM;
goto err_dma_alloc_raq;
}
raq->e_raq_buf->map = addr;
/* Configure raq extended address. 48bit 4K align*/
roce_write(hr_dev, ROCEE_EXT_RAQ_REG, raq->e_raq_buf->map >> 12);
/* Configure raq_shift */
raq_shift = ilog2(HNS_ROCE_V1_RAQ_SIZE / HNS_ROCE_V1_RAQ_ENTRY);
val = roce_read(hr_dev, ROCEE_EXT_RAQ_H_REG);
roce_set_field(val, ROCEE_EXT_RAQ_H_EXT_RAQ_SHIFT_M,
ROCEE_EXT_RAQ_H_EXT_RAQ_SHIFT_S, raq_shift);
/*
* 44 = 32 + 12, When evaluating addr to hardware, shift 12 because of
* using 4K page, and shift more 32 because of
* caculating the high 32 bit value evaluated to hardware.
*/
roce_set_field(val, ROCEE_EXT_RAQ_H_EXT_RAQ_BA_H_M,
ROCEE_EXT_RAQ_H_EXT_RAQ_BA_H_S,
raq->e_raq_buf->map >> 44);
roce_write(hr_dev, ROCEE_EXT_RAQ_H_REG, val);
dev_dbg(dev, "Configure raq_shift 0x%x.\n", val);
/* Configure raq threshold */
val = roce_read(hr_dev, ROCEE_RAQ_WL_REG);
roce_set_field(val, ROCEE_RAQ_WL_ROCEE_RAQ_WL_M,
ROCEE_RAQ_WL_ROCEE_RAQ_WL_S,
HNS_ROCE_V1_EXT_RAQ_WF);
roce_write(hr_dev, ROCEE_RAQ_WL_REG, val);
dev_dbg(dev, "Configure raq_wl 0x%x.\n", val);
/* Enable extend raq */
val = roce_read(hr_dev, ROCEE_WRMS_POL_TIME_INTERVAL_REG);
roce_set_field(val,
ROCEE_WRMS_POL_TIME_INTERVAL_WRMS_POL_TIME_INTERVAL_M,
ROCEE_WRMS_POL_TIME_INTERVAL_WRMS_POL_TIME_INTERVAL_S,
POL_TIME_INTERVAL_VAL);
roce_set_bit(val, ROCEE_WRMS_POL_TIME_INTERVAL_WRMS_EXT_RAQ_MODE, 1);
roce_set_field(val,
ROCEE_WRMS_POL_TIME_INTERVAL_WRMS_RAQ_TIMEOUT_CHK_CFG_M,
ROCEE_WRMS_POL_TIME_INTERVAL_WRMS_RAQ_TIMEOUT_CHK_CFG_S,
2);
roce_set_bit(val,
ROCEE_WRMS_POL_TIME_INTERVAL_WRMS_RAQ_TIMEOUT_CHK_EN_S, 1);
roce_write(hr_dev, ROCEE_WRMS_POL_TIME_INTERVAL_REG, val);
dev_dbg(dev, "Configure WrmsPolTimeInterval 0x%x.\n", val);
/* Enable raq drop */
val = roce_read(hr_dev, ROCEE_GLB_CFG_REG);
roce_set_bit(val, ROCEE_GLB_CFG_TRP_RAQ_DROP_EN_S, 1);
roce_write(hr_dev, ROCEE_GLB_CFG_REG, val);
dev_dbg(dev, "Configure GlbCfg = 0x%x.\n", val);
return 0;
err_dma_alloc_raq:
kfree(raq->e_raq_buf);
return ret;
}
static void hns_roce_raq_free(struct hns_roce_dev *hr_dev)
{
struct device *dev = &hr_dev->pdev->dev;
struct hns_roce_v1_priv *priv;
struct hns_roce_raq_table *raq;
priv = (struct hns_roce_v1_priv *)hr_dev->hw->priv;
raq = &priv->raq_table;
dma_free_coherent(dev, HNS_ROCE_V1_RAQ_SIZE, raq->e_raq_buf->buf,
raq->e_raq_buf->map);
kfree(raq->e_raq_buf);
}
static void hns_roce_port_enable(struct hns_roce_dev *hr_dev, int enable_flag)
{
u32 val;
if (enable_flag) {
val = roce_read(hr_dev, ROCEE_GLB_CFG_REG);
/* Open all ports */
roce_set_field(val, ROCEE_GLB_CFG_ROCEE_PORT_ST_M,
ROCEE_GLB_CFG_ROCEE_PORT_ST_S,
ALL_PORT_VAL_OPEN);
roce_write(hr_dev, ROCEE_GLB_CFG_REG, val);
} else {
val = roce_read(hr_dev, ROCEE_GLB_CFG_REG);
/* Close all ports */
roce_set_field(val, ROCEE_GLB_CFG_ROCEE_PORT_ST_M,
ROCEE_GLB_CFG_ROCEE_PORT_ST_S, 0x0);
roce_write(hr_dev, ROCEE_GLB_CFG_REG, val);
}
}
/**
* hns_roce_v1_reset - reset RoCE
* @hr_dev: RoCE device struct pointer
* @enable: true -- drop reset, false -- reset
* return 0 - success , negative --fail
*/
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 acpi_reference_args args;
ret = acpi_node_get_property_reference(dev->fwnode,
"dsaf-handle", 0, &args);
if (ret) {
dev_err(dev, "could not find dsaf-handle\n");
return ret;
}
fwnode = acpi_fwnode_handle(args.adev);
} else {
dev_err(dev, "cannot read data from DT or ACPI\n");
return -ENXIO;
}
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;
}
void hns_roce_v1_profile(struct hns_roce_dev *hr_dev)
{
int i = 0;
struct hns_roce_caps *caps = &hr_dev->caps;
hr_dev->vendor_id = le32_to_cpu(roce_read(hr_dev, ROCEE_VENDOR_ID_REG));
hr_dev->vendor_part_id = le32_to_cpu(roce_read(hr_dev,
ROCEE_VENDOR_PART_ID_REG));
hr_dev->hw_rev = le32_to_cpu(roce_read(hr_dev, ROCEE_HW_VERSION_REG));
hr_dev->sys_image_guid = le32_to_cpu(roce_read(hr_dev,
ROCEE_SYS_IMAGE_GUID_L_REG)) |
((u64)le32_to_cpu(roce_read(hr_dev,
ROCEE_SYS_IMAGE_GUID_H_REG)) << 32);
caps->num_qps = HNS_ROCE_V1_MAX_QP_NUM;
caps->max_wqes = HNS_ROCE_V1_MAX_WQE_NUM;
caps->num_cqs = HNS_ROCE_V1_MAX_CQ_NUM;
caps->max_cqes = HNS_ROCE_V1_MAX_CQE_NUM;
caps->max_sq_sg = HNS_ROCE_V1_SG_NUM;
caps->max_rq_sg = HNS_ROCE_V1_SG_NUM;
caps->max_sq_inline = HNS_ROCE_V1_INLINE_SIZE;
caps->num_uars = HNS_ROCE_V1_UAR_NUM;
caps->phy_num_uars = HNS_ROCE_V1_PHY_UAR_NUM;
caps->num_aeq_vectors = HNS_ROCE_AEQE_VEC_NUM;
caps->num_comp_vectors = HNS_ROCE_COMP_VEC_NUM;
caps->num_other_vectors = HNS_ROCE_AEQE_OF_VEC_NUM;
caps->num_mtpts = HNS_ROCE_V1_MAX_MTPT_NUM;
caps->num_mtt_segs = HNS_ROCE_V1_MAX_MTT_SEGS;
caps->num_pds = HNS_ROCE_V1_MAX_PD_NUM;
caps->max_qp_init_rdma = HNS_ROCE_V1_MAX_QP_INIT_RDMA;
caps->max_qp_dest_rdma = HNS_ROCE_V1_MAX_QP_DEST_RDMA;
caps->max_sq_desc_sz = HNS_ROCE_V1_MAX_SQ_DESC_SZ;
caps->max_rq_desc_sz = HNS_ROCE_V1_MAX_RQ_DESC_SZ;
caps->qpc_entry_sz = HNS_ROCE_V1_QPC_ENTRY_SIZE;
caps->irrl_entry_sz = HNS_ROCE_V1_IRRL_ENTRY_SIZE;
caps->cqc_entry_sz = HNS_ROCE_V1_CQC_ENTRY_SIZE;
caps->mtpt_entry_sz = HNS_ROCE_V1_MTPT_ENTRY_SIZE;
caps->mtt_entry_sz = HNS_ROCE_V1_MTT_ENTRY_SIZE;
caps->cq_entry_sz = HNS_ROCE_V1_CQE_ENTRY_SIZE;
caps->page_size_cap = HNS_ROCE_V1_PAGE_SIZE_SUPPORT;
caps->sqp_start = 0;
caps->reserved_lkey = 0;
caps->reserved_pds = 0;
caps->reserved_mrws = 1;
caps->reserved_uars = 0;
caps->reserved_cqs = 0;
for (i = 0; i < caps->num_ports; i++)
caps->pkey_table_len[i] = 1;
for (i = 0; i < caps->num_ports; i++) {
/* Six ports shared 16 GID in v1 engine */
if (i >= (HNS_ROCE_V1_GID_NUM % caps->num_ports))
caps->gid_table_len[i] = HNS_ROCE_V1_GID_NUM /
caps->num_ports;
else
caps->gid_table_len[i] = HNS_ROCE_V1_GID_NUM /
caps->num_ports + 1;
}
for (i = 0; i < caps->num_comp_vectors; i++)
caps->ceqe_depth[i] = HNS_ROCE_V1_NUM_COMP_EQE;
caps->aeqe_depth = HNS_ROCE_V1_NUM_ASYNC_EQE;
caps->local_ca_ack_delay = le32_to_cpu(roce_read(hr_dev,
ROCEE_ACK_DELAY_REG));
caps->max_mtu = IB_MTU_2048;
}
int hns_roce_v1_init(struct hns_roce_dev *hr_dev)
{
int ret;
u32 val;
struct device *dev = &hr_dev->pdev->dev;
/* DMAE user config */
val = roce_read(hr_dev, ROCEE_DMAE_USER_CFG1_REG);
roce_set_field(val, ROCEE_DMAE_USER_CFG1_ROCEE_CACHE_TB_CFG_M,
ROCEE_DMAE_USER_CFG1_ROCEE_CACHE_TB_CFG_S, 0xf);
roce_set_field(val, ROCEE_DMAE_USER_CFG1_ROCEE_STREAM_ID_TB_CFG_M,
ROCEE_DMAE_USER_CFG1_ROCEE_STREAM_ID_TB_CFG_S,
1 << PAGES_SHIFT_16);
roce_write(hr_dev, ROCEE_DMAE_USER_CFG1_REG, val);
val = roce_read(hr_dev, ROCEE_DMAE_USER_CFG2_REG);
roce_set_field(val, ROCEE_DMAE_USER_CFG2_ROCEE_CACHE_PKT_CFG_M,
ROCEE_DMAE_USER_CFG2_ROCEE_CACHE_PKT_CFG_S, 0xf);
roce_set_field(val, ROCEE_DMAE_USER_CFG2_ROCEE_STREAM_ID_PKT_CFG_M,
ROCEE_DMAE_USER_CFG2_ROCEE_STREAM_ID_PKT_CFG_S,
1 << PAGES_SHIFT_16);
ret = hns_roce_db_init(hr_dev);
if (ret) {
dev_err(dev, "doorbell init failed!\n");
return ret;
}
ret = hns_roce_raq_init(hr_dev);
if (ret) {
dev_err(dev, "raq init failed!\n");
goto error_failed_raq_init;
}
hns_roce_port_enable(hr_dev, HNS_ROCE_PORT_UP);
return 0;
error_failed_raq_init:
hns_roce_db_free(hr_dev);
return ret;
}
void hns_roce_v1_exit(struct hns_roce_dev *hr_dev)
{
hns_roce_port_enable(hr_dev, HNS_ROCE_PORT_DOWN);
hns_roce_raq_free(hr_dev);
hns_roce_db_free(hr_dev);
}
void hns_roce_v1_set_gid(struct hns_roce_dev *hr_dev, u8 port, int gid_index,
union ib_gid *gid)
{
u32 *p = NULL;
u8 gid_idx = 0;
gid_idx = hns_get_gid_index(hr_dev, port, gid_index);
p = (u32 *)&gid->raw[0];
roce_raw_write(*p, hr_dev->reg_base + ROCEE_PORT_GID_L_0_REG +
(HNS_ROCE_V1_GID_NUM * gid_idx));
p = (u32 *)&gid->raw[4];
roce_raw_write(*p, hr_dev->reg_base + ROCEE_PORT_GID_ML_0_REG +
(HNS_ROCE_V1_GID_NUM * gid_idx));
p = (u32 *)&gid->raw[8];
roce_raw_write(*p, hr_dev->reg_base + ROCEE_PORT_GID_MH_0_REG +
(HNS_ROCE_V1_GID_NUM * gid_idx));
p = (u32 *)&gid->raw[0xc];
roce_raw_write(*p, hr_dev->reg_base + ROCEE_PORT_GID_H_0_REG +
(HNS_ROCE_V1_GID_NUM * gid_idx));
}
void hns_roce_v1_set_mac(struct hns_roce_dev *hr_dev, u8 phy_port, u8 *addr)
{
u32 reg_smac_l;
u16 reg_smac_h;
u16 *p_h;
u32 *p;
u32 val;
p = (u32 *)(&addr[0]);
reg_smac_l = *p;
roce_raw_write(reg_smac_l, hr_dev->reg_base + ROCEE_SMAC_L_0_REG +
PHY_PORT_OFFSET * phy_port);
val = roce_read(hr_dev,
ROCEE_SMAC_H_0_REG + phy_port * PHY_PORT_OFFSET);
p_h = (u16 *)(&addr[4]);
reg_smac_h = *p_h;
roce_set_field(val, ROCEE_SMAC_H_ROCEE_SMAC_H_M,
ROCEE_SMAC_H_ROCEE_SMAC_H_S, reg_smac_h);
roce_write(hr_dev, ROCEE_SMAC_H_0_REG + phy_port * PHY_PORT_OFFSET,
val);
}
void hns_roce_v1_set_mtu(struct hns_roce_dev *hr_dev, u8 phy_port,
enum ib_mtu mtu)
{
u32 val;
val = roce_read(hr_dev,
ROCEE_SMAC_H_0_REG + phy_port * PHY_PORT_OFFSET);
roce_set_field(val, ROCEE_SMAC_H_ROCEE_PORT_MTU_M,
ROCEE_SMAC_H_ROCEE_PORT_MTU_S, mtu);
roce_write(hr_dev, ROCEE_SMAC_H_0_REG + phy_port * PHY_PORT_OFFSET,
val);
}
int hns_roce_v1_write_mtpt(void *mb_buf, struct hns_roce_mr *mr,
unsigned long mtpt_idx)
{
struct hns_roce_v1_mpt_entry *mpt_entry;
struct scatterlist *sg;
u64 *pages;
int entry;
int i;
/* MPT filled into mailbox buf */
mpt_entry = (struct hns_roce_v1_mpt_entry *)mb_buf;
memset(mpt_entry, 0, sizeof(*mpt_entry));
roce_set_field(mpt_entry->mpt_byte_4, MPT_BYTE_4_KEY_STATE_M,
MPT_BYTE_4_KEY_STATE_S, KEY_VALID);
roce_set_field(mpt_entry->mpt_byte_4, MPT_BYTE_4_KEY_M,
MPT_BYTE_4_KEY_S, mr->key);
roce_set_field(mpt_entry->mpt_byte_4, MPT_BYTE_4_PAGE_SIZE_M,
MPT_BYTE_4_PAGE_SIZE_S, MR_SIZE_4K);
roce_set_bit(mpt_entry->mpt_byte_4, MPT_BYTE_4_MW_TYPE_S, 0);
roce_set_bit(mpt_entry->mpt_byte_4, MPT_BYTE_4_MW_BIND_ENABLE_S,
(mr->access & IB_ACCESS_MW_BIND ? 1 : 0));
roce_set_bit(mpt_entry->mpt_byte_4, MPT_BYTE_4_OWN_S, 0);
roce_set_field(mpt_entry->mpt_byte_4, MPT_BYTE_4_MEMORY_LOCATION_TYPE_M,
MPT_BYTE_4_MEMORY_LOCATION_TYPE_S, mr->type);
roce_set_bit(mpt_entry->mpt_byte_4, MPT_BYTE_4_REMOTE_ATOMIC_S, 0);
roce_set_bit(mpt_entry->mpt_byte_4, MPT_BYTE_4_LOCAL_WRITE_S,
(mr->access & IB_ACCESS_LOCAL_WRITE ? 1 : 0));
roce_set_bit(mpt_entry->mpt_byte_4, MPT_BYTE_4_REMOTE_WRITE_S,
(mr->access & IB_ACCESS_REMOTE_WRITE ? 1 : 0));
roce_set_bit(mpt_entry->mpt_byte_4, MPT_BYTE_4_REMOTE_READ_S,
(mr->access & IB_ACCESS_REMOTE_READ ? 1 : 0));
roce_set_bit(mpt_entry->mpt_byte_4, MPT_BYTE_4_REMOTE_INVAL_ENABLE_S,
0);
roce_set_bit(mpt_entry->mpt_byte_4, MPT_BYTE_4_ADDRESS_TYPE_S, 0);
roce_set_field(mpt_entry->mpt_byte_12, MPT_BYTE_12_PBL_ADDR_H_M,
MPT_BYTE_12_PBL_ADDR_H_S, 0);
roce_set_field(mpt_entry->mpt_byte_12, MPT_BYTE_12_MW_BIND_COUNTER_M,
MPT_BYTE_12_MW_BIND_COUNTER_S, 0);
mpt_entry->virt_addr_l = (u32)mr->iova;
mpt_entry->virt_addr_h = (u32)(mr->iova >> 32);
mpt_entry->length = (u32)mr->size;
roce_set_field(mpt_entry->mpt_byte_28, MPT_BYTE_28_PD_M,
MPT_BYTE_28_PD_S, mr->pd);
roce_set_field(mpt_entry->mpt_byte_28, MPT_BYTE_28_L_KEY_IDX_L_M,
MPT_BYTE_28_L_KEY_IDX_L_S, mtpt_idx);
roce_set_field(mpt_entry->mpt_byte_64, MPT_BYTE_64_L_KEY_IDX_H_M,
MPT_BYTE_64_L_KEY_IDX_H_S, mtpt_idx >> MTPT_IDX_SHIFT);
/* DMA momery regsiter */
if (mr->type == MR_TYPE_DMA)
return 0;
pages = (u64 *) __get_free_page(GFP_KERNEL);
if (!pages)
return -ENOMEM;
i = 0;
for_each_sg(mr->umem->sg_head.sgl, sg, mr->umem->nmap, entry) {
pages[i] = ((u64)sg_dma_address(sg)) >> 12;
/* Directly record to MTPT table firstly 7 entry */
if (i >= HNS_ROCE_MAX_INNER_MTPT_NUM)
break;
i++;
}
/* Register user mr */
for (i = 0; i < HNS_ROCE_MAX_INNER_MTPT_NUM; i++) {
switch (i) {
case 0:
mpt_entry->pa0_l = cpu_to_le32((u32)(pages[i]));
roce_set_field(mpt_entry->mpt_byte_36,
MPT_BYTE_36_PA0_H_M,
MPT_BYTE_36_PA0_H_S,
cpu_to_le32((u32)(pages[i] >> PAGES_SHIFT_32)));
break;
case 1:
roce_set_field(mpt_entry->mpt_byte_36,
MPT_BYTE_36_PA1_L_M,
MPT_BYTE_36_PA1_L_S,
cpu_to_le32((u32)(pages[i])));
roce_set_field(mpt_entry->mpt_byte_40,
MPT_BYTE_40_PA1_H_M,
MPT_BYTE_40_PA1_H_S,
cpu_to_le32((u32)(pages[i] >> PAGES_SHIFT_24)));
break;
case 2:
roce_set_field(mpt_entry->mpt_byte_40,
MPT_BYTE_40_PA2_L_M,
MPT_BYTE_40_PA2_L_S,
cpu_to_le32((u32)(pages[i])));
roce_set_field(mpt_entry->mpt_byte_44,
MPT_BYTE_44_PA2_H_M,
MPT_BYTE_44_PA2_H_S,
cpu_to_le32((u32)(pages[i] >> PAGES_SHIFT_16)));
break;
case 3:
roce_set_field(mpt_entry->mpt_byte_44,
MPT_BYTE_44_PA3_L_M,
MPT_BYTE_44_PA3_L_S,
cpu_to_le32((u32)(pages[i])));
roce_set_field(mpt_entry->mpt_byte_48,
MPT_BYTE_48_PA3_H_M,
MPT_BYTE_48_PA3_H_S,
cpu_to_le32((u32)(pages[i] >> PAGES_SHIFT_8)));
break;
case 4:
mpt_entry->pa4_l = cpu_to_le32((u32)(pages[i]));
roce_set_field(mpt_entry->mpt_byte_56,
MPT_BYTE_56_PA4_H_M,
MPT_BYTE_56_PA4_H_S,
cpu_to_le32((u32)(pages[i] >> PAGES_SHIFT_32)));
break;
case 5:
roce_set_field(mpt_entry->mpt_byte_56,
MPT_BYTE_56_PA5_L_M,
MPT_BYTE_56_PA5_L_S,
cpu_to_le32((u32)(pages[i])));
roce_set_field(mpt_entry->mpt_byte_60,
MPT_BYTE_60_PA5_H_M,
MPT_BYTE_60_PA5_H_S,
cpu_to_le32((u32)(pages[i] >> PAGES_SHIFT_24)));
break;
case 6:
roce_set_field(mpt_entry->mpt_byte_60,
MPT_BYTE_60_PA6_L_M,
MPT_BYTE_60_PA6_L_S,
cpu_to_le32((u32)(pages[i])));
roce_set_field(mpt_entry->mpt_byte_64,
MPT_BYTE_64_PA6_H_M,
MPT_BYTE_64_PA6_H_S,
cpu_to_le32((u32)(pages[i] >> PAGES_SHIFT_16)));
break;
default:
break;
}
}
free_page((unsigned long) pages);
mpt_entry->pbl_addr_l = (u32)(mr->pbl_dma_addr);
roce_set_field(mpt_entry->mpt_byte_12, MPT_BYTE_12_PBL_ADDR_H_M,
MPT_BYTE_12_PBL_ADDR_H_S,
((u32)(mr->pbl_dma_addr >> 32)));
return 0;
}
static void *get_cqe(struct hns_roce_cq *hr_cq, int n)
{
return hns_roce_buf_offset(&hr_cq->hr_buf.hr_buf,
n * HNS_ROCE_V1_CQE_ENTRY_SIZE);
}
static void *get_sw_cqe(struct hns_roce_cq *hr_cq, int n)
{
struct hns_roce_cqe *hr_cqe = get_cqe(hr_cq, n & hr_cq->ib_cq.cqe);
/* Get cqe when Owner bit is Conversely with the MSB of cons_idx */
return (roce_get_bit(hr_cqe->cqe_byte_4, CQE_BYTE_4_OWNER_S) ^
!!(n & (hr_cq->ib_cq.cqe + 1))) ? hr_cqe : NULL;
}
static struct hns_roce_cqe *next_cqe_sw(struct hns_roce_cq *hr_cq)
{
return get_sw_cqe(hr_cq, hr_cq->cons_index);
}
void hns_roce_v1_cq_set_ci(struct hns_roce_cq *hr_cq, u32 cons_index,
spinlock_t *doorbell_lock)
{
u32 doorbell[2];
doorbell[0] = cons_index & ((hr_cq->cq_depth << 1) - 1);
roce_set_bit(doorbell[1], ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_HW_SYNS_S, 1);
roce_set_field(doorbell[1], ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_CMD_M,
ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_CMD_S, 3);
roce_set_field(doorbell[1], ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_CMD_MDF_M,
ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_CMD_MDF_S, 0);
roce_set_field(doorbell[1], ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_INP_H_M,
ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_INP_H_S, hr_cq->cqn);
hns_roce_write64_k(doorbell, hr_cq->cq_db_l);
}
static void __hns_roce_v1_cq_clean(struct hns_roce_cq *hr_cq, u32 qpn,
struct hns_roce_srq *srq)
{
struct hns_roce_cqe *cqe, *dest;
u32 prod_index;
int nfreed = 0;
u8 owner_bit;
for (prod_index = hr_cq->cons_index; get_sw_cqe(hr_cq, prod_index);
++prod_index) {
if (prod_index == hr_cq->cons_index + hr_cq->ib_cq.cqe)
break;
}
/*
* Now backwards through the CQ, removing CQ entries
* that match our QP by overwriting them with next entries.
*/
while ((int) --prod_index - (int) hr_cq->cons_index >= 0) {
cqe = get_cqe(hr_cq, prod_index & hr_cq->ib_cq.cqe);
if ((roce_get_field(cqe->cqe_byte_16, CQE_BYTE_16_LOCAL_QPN_M,
CQE_BYTE_16_LOCAL_QPN_S) &
HNS_ROCE_CQE_QPN_MASK) == qpn) {
/* In v1 engine, not support SRQ */
++nfreed;
} else if (nfreed) {
dest = get_cqe(hr_cq, (prod_index + nfreed) &
hr_cq->ib_cq.cqe);
owner_bit = roce_get_bit(dest->cqe_byte_4,
CQE_BYTE_4_OWNER_S);
memcpy(dest, cqe, sizeof(*cqe));
roce_set_bit(dest->cqe_byte_4, CQE_BYTE_4_OWNER_S,
owner_bit);
}
}
if (nfreed) {
hr_cq->cons_index += nfreed;
/*
* Make sure update of buffer contents is done before
* updating consumer index.
*/
wmb();
hns_roce_v1_cq_set_ci(hr_cq, hr_cq->cons_index,
&to_hr_dev(hr_cq->ib_cq.device)->cq_db_lock);
}
}
static void hns_roce_v1_cq_clean(struct hns_roce_cq *hr_cq, u32 qpn,
struct hns_roce_srq *srq)
{
spin_lock_irq(&hr_cq->lock);
__hns_roce_v1_cq_clean(hr_cq, qpn, srq);
spin_unlock_irq(&hr_cq->lock);
}
void hns_roce_v1_write_cqc(struct hns_roce_dev *hr_dev,
struct hns_roce_cq *hr_cq, void *mb_buf, u64 *mtts,
dma_addr_t dma_handle, int nent, u32 vector)
{
struct hns_roce_cq_context *cq_context = NULL;
void __iomem *tptr_addr;
cq_context = mb_buf;
memset(cq_context, 0, sizeof(*cq_context));
tptr_addr = 0;
hr_dev->priv_addr = tptr_addr;
hr_cq->tptr_addr = tptr_addr;
/* Register cq_context members */
roce_set_field(cq_context->cqc_byte_4,
CQ_CONTEXT_CQC_BYTE_4_CQC_STATE_M,
CQ_CONTEXT_CQC_BYTE_4_CQC_STATE_S, CQ_STATE_VALID);
roce_set_field(cq_context->cqc_byte_4, CQ_CONTEXT_CQC_BYTE_4_CQN_M,
CQ_CONTEXT_CQC_BYTE_4_CQN_S, hr_cq->cqn);
cq_context->cqc_byte_4 = cpu_to_le32(cq_context->cqc_byte_4);
cq_context->cq_bt_l = (u32)dma_handle;
cq_context->cq_bt_l = cpu_to_le32(cq_context->cq_bt_l);
roce_set_field(cq_context->cqc_byte_12,
CQ_CONTEXT_CQC_BYTE_12_CQ_BT_H_M,
CQ_CONTEXT_CQC_BYTE_12_CQ_BT_H_S,
((u64)dma_handle >> 32));
roce_set_field(cq_context->cqc_byte_12,
CQ_CONTEXT_CQC_BYTE_12_CQ_CQE_SHIFT_M,
CQ_CONTEXT_CQC_BYTE_12_CQ_CQE_SHIFT_S,
ilog2((unsigned int)nent));
roce_set_field(cq_context->cqc_byte_12, CQ_CONTEXT_CQC_BYTE_12_CEQN_M,
CQ_CONTEXT_CQC_BYTE_12_CEQN_S, vector);
cq_context->cqc_byte_12 = cpu_to_le32(cq_context->cqc_byte_12);
cq_context->cur_cqe_ba0_l = (u32)(mtts[0]);
cq_context->cur_cqe_ba0_l = cpu_to_le32(cq_context->cur_cqe_ba0_l);
roce_set_field(cq_context->cqc_byte_20,
CQ_CONTEXT_CQC_BYTE_20_CUR_CQE_BA0_H_M,
CQ_CONTEXT_CQC_BYTE_20_CUR_CQE_BA0_H_S,
cpu_to_le32((mtts[0]) >> 32));
/* Dedicated hardware, directly set 0 */
roce_set_field(cq_context->cqc_byte_20,
CQ_CONTEXT_CQC_BYTE_20_CQ_CUR_INDEX_M,
CQ_CONTEXT_CQC_BYTE_20_CQ_CUR_INDEX_S, 0);
/**
* 44 = 32 + 12, When evaluating addr to hardware, shift 12 because of
* using 4K page, and shift more 32 because of
* caculating the high 32 bit value evaluated to hardware.
*/
roce_set_field(cq_context->cqc_byte_20,
CQ_CONTEXT_CQC_BYTE_20_CQE_TPTR_ADDR_H_M,
CQ_CONTEXT_CQC_BYTE_20_CQE_TPTR_ADDR_H_S,
(u64)tptr_addr >> 44);
cq_context->cqc_byte_20 = cpu_to_le32(cq_context->cqc_byte_20);
cq_context->cqe_tptr_addr_l = (u32)((u64)tptr_addr >> 12);
roce_set_field(cq_context->cqc_byte_32,
CQ_CONTEXT_CQC_BYTE_32_CUR_CQE_BA1_H_M,
CQ_CONTEXT_CQC_BYTE_32_CUR_CQE_BA1_H_S, 0);
roce_set_bit(cq_context->cqc_byte_32,
CQ_CONTEXT_CQC_BYTE_32_SE_FLAG_S, 0);
roce_set_bit(cq_context->cqc_byte_32,
CQ_CONTEXT_CQC_BYTE_32_CE_FLAG_S, 0);
roce_set_bit(cq_context->cqc_byte_32,
CQ_CONTEXT_CQC_BYTE_32_NOTIFICATION_FLAG_S, 0);
roce_set_bit(cq_context->cqc_byte_32,
CQ_CQNTEXT_CQC_BYTE_32_TYPE_OF_COMPLETION_NOTIFICATION_S,
0);
/*The initial value of cq's ci is 0 */
roce_set_field(cq_context->cqc_byte_32,
CQ_CONTEXT_CQC_BYTE_32_CQ_CONS_IDX_M,
CQ_CONTEXT_CQC_BYTE_32_CQ_CONS_IDX_S, 0);
cq_context->cqc_byte_32 = cpu_to_le32(cq_context->cqc_byte_32);
}
int hns_roce_v1_req_notify_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags)
{
struct hns_roce_cq *hr_cq = to_hr_cq(ibcq);
u32 notification_flag;
u32 doorbell[2];
int ret = 0;
notification_flag = (flags & IB_CQ_SOLICITED_MASK) ==
IB_CQ_SOLICITED ? CQ_DB_REQ_NOT : CQ_DB_REQ_NOT_SOL;
/*
* flags = 0; Notification Flag = 1, next
* flags = 1; Notification Flag = 0, solocited
*/
doorbell[0] = hr_cq->cons_index & ((hr_cq->cq_depth << 1) - 1);
roce_set_bit(doorbell[1], ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_HW_SYNS_S, 1);
roce_set_field(doorbell[1], ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_CMD_M,
ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_CMD_S, 3);
roce_set_field(doorbell[1], ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_CMD_MDF_M,
ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_CMD_MDF_S, 1);
roce_set_field(doorbell[1], ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_INP_H_M,
ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_INP_H_S,
hr_cq->cqn | notification_flag);
hns_roce_write64_k(doorbell, hr_cq->cq_db_l);
return ret;
}
static int hns_roce_v1_poll_one(struct hns_roce_cq *hr_cq,
struct hns_roce_qp **cur_qp, struct ib_wc *wc)
{
int qpn;
int is_send;
u16 wqe_ctr;
u32 status;
u32 opcode;
struct hns_roce_cqe *cqe;
struct hns_roce_qp *hr_qp;
struct hns_roce_wq *wq;
struct hns_roce_wqe_ctrl_seg *sq_wqe;
struct hns_roce_dev *hr_dev = to_hr_dev(hr_cq->ib_cq.device);
struct device *dev = &hr_dev->pdev->dev;
/* Find cqe according consumer index */
cqe = next_cqe_sw(hr_cq);
if (!cqe)
return -EAGAIN;
++hr_cq->cons_index;
/* Memory barrier */
rmb();
/* 0->SQ, 1->RQ */
is_send = !(roce_get_bit(cqe->cqe_byte_4, CQE_BYTE_4_SQ_RQ_FLAG_S));
/* Local_qpn in UD cqe is always 1, so it needs to compute new qpn */
if (roce_get_field(cqe->cqe_byte_16, CQE_BYTE_16_LOCAL_QPN_M,
CQE_BYTE_16_LOCAL_QPN_S) <= 1) {
qpn = roce_get_field(cqe->cqe_byte_20, CQE_BYTE_20_PORT_NUM_M,
CQE_BYTE_20_PORT_NUM_S) +
roce_get_field(cqe->cqe_byte_16, CQE_BYTE_16_LOCAL_QPN_M,
CQE_BYTE_16_LOCAL_QPN_S) *
HNS_ROCE_MAX_PORTS;
} else {
qpn = roce_get_field(cqe->cqe_byte_16, CQE_BYTE_16_LOCAL_QPN_M,
CQE_BYTE_16_LOCAL_QPN_S);
}
if (!*cur_qp || (qpn & HNS_ROCE_CQE_QPN_MASK) != (*cur_qp)->qpn) {
hr_qp = __hns_roce_qp_lookup(hr_dev, qpn);
if (unlikely(!hr_qp)) {
dev_err(dev, "CQ %06lx with entry for unknown QPN %06x\n",
hr_cq->cqn, (qpn & HNS_ROCE_CQE_QPN_MASK));
return -EINVAL;
}
*cur_qp = hr_qp;
}
wc->qp = &(*cur_qp)->ibqp;
wc->vendor_err = 0;
status = roce_get_field(cqe->cqe_byte_4,
CQE_BYTE_4_STATUS_OF_THE_OPERATION_M,
CQE_BYTE_4_STATUS_OF_THE_OPERATION_S) &
HNS_ROCE_CQE_STATUS_MASK;
switch (status) {
case HNS_ROCE_CQE_SUCCESS:
wc->status = IB_WC_SUCCESS;
break;
case HNS_ROCE_CQE_SYNDROME_LOCAL_LENGTH_ERR:
wc->status = IB_WC_LOC_LEN_ERR;
break;
case HNS_ROCE_CQE_SYNDROME_LOCAL_QP_OP_ERR:
wc->status = IB_WC_LOC_QP_OP_ERR;
break;
case HNS_ROCE_CQE_SYNDROME_LOCAL_PROT_ERR:
wc->status = IB_WC_LOC_PROT_ERR;
break;
case HNS_ROCE_CQE_SYNDROME_WR_FLUSH_ERR:
wc->status = IB_WC_WR_FLUSH_ERR;
break;
case HNS_ROCE_CQE_SYNDROME_MEM_MANAGE_OPERATE_ERR:
wc->status = IB_WC_MW_BIND_ERR;
break;
case HNS_ROCE_CQE_SYNDROME_BAD_RESP_ERR:
wc->status = IB_WC_BAD_RESP_ERR;
break;
case HNS_ROCE_CQE_SYNDROME_LOCAL_ACCESS_ERR:
wc->status = IB_WC_LOC_ACCESS_ERR;
break;
case HNS_ROCE_CQE_SYNDROME_REMOTE_INVAL_REQ_ERR:
wc->status = IB_WC_REM_INV_REQ_ERR;
break;
case HNS_ROCE_CQE_SYNDROME_REMOTE_ACCESS_ERR:
wc->status = IB_WC_REM_ACCESS_ERR;
break;
case HNS_ROCE_CQE_SYNDROME_REMOTE_OP_ERR:
wc->status = IB_WC_REM_OP_ERR;
break;
case HNS_ROCE_CQE_SYNDROME_TRANSPORT_RETRY_EXC_ERR:
wc->status = IB_WC_RETRY_EXC_ERR;
break;
case HNS_ROCE_CQE_SYNDROME_RNR_RETRY_EXC_ERR:
wc->status = IB_WC_RNR_RETRY_EXC_ERR;
break;
default:
wc->status = IB_WC_GENERAL_ERR;
break;
}
/* CQE status error, directly return */
if (wc->status != IB_WC_SUCCESS)
return 0;
if (is_send) {
/* SQ conrespond to CQE */
sq_wqe = get_send_wqe(*cur_qp, roce_get_field(cqe->cqe_byte_4,
CQE_BYTE_4_WQE_INDEX_M,
CQE_BYTE_4_WQE_INDEX_S));
switch (sq_wqe->flag & HNS_ROCE_WQE_OPCODE_MASK) {
case HNS_ROCE_WQE_OPCODE_SEND:
wc->opcode = IB_WC_SEND;
break;
case HNS_ROCE_WQE_OPCODE_RDMA_READ:
wc->opcode = IB_WC_RDMA_READ;
wc->byte_len = le32_to_cpu(cqe->byte_cnt);
break;
case HNS_ROCE_WQE_OPCODE_RDMA_WRITE:
wc->opcode = IB_WC_RDMA_WRITE;
break;
case HNS_ROCE_WQE_OPCODE_LOCAL_INV:
wc->opcode = IB_WC_LOCAL_INV;
break;
case HNS_ROCE_WQE_OPCODE_UD_SEND:
wc->opcode = IB_WC_SEND;
break;
default:
wc->status = IB_WC_GENERAL_ERR;
break;
}
wc->wc_flags = (sq_wqe->flag & HNS_ROCE_WQE_IMM ?
IB_WC_WITH_IMM : 0);
wq = &(*cur_qp)->sq;
if ((*cur_qp)->sq_signal_bits) {
/*
* If sg_signal_bit is 1,
* firstly tail pointer updated to wqe
* which current cqe correspond to
*/
wqe_ctr = (u16)roce_get_field(cqe->cqe_byte_4,
CQE_BYTE_4_WQE_INDEX_M,
CQE_BYTE_4_WQE_INDEX_S);
wq->tail += (wqe_ctr - (u16)wq->tail) &
(wq->wqe_cnt - 1);
}
wc->wr_id = wq->wrid[wq->tail & (wq->wqe_cnt - 1)];
++wq->tail;
} else {
/* RQ conrespond to CQE */
wc->byte_len = le32_to_cpu(cqe->byte_cnt);
opcode = roce_get_field(cqe->cqe_byte_4,
CQE_BYTE_4_OPERATION_TYPE_M,
CQE_BYTE_4_OPERATION_TYPE_S) &
HNS_ROCE_CQE_OPCODE_MASK;
switch (opcode) {
case HNS_ROCE_OPCODE_RDMA_WITH_IMM_RECEIVE:
wc->opcode = IB_WC_RECV_RDMA_WITH_IMM;
wc->wc_flags = IB_WC_WITH_IMM;
wc->ex.imm_data = le32_to_cpu(cqe->immediate_data);
break;
case HNS_ROCE_OPCODE_SEND_DATA_RECEIVE:
if (roce_get_bit(cqe->cqe_byte_4,
CQE_BYTE_4_IMM_INDICATOR_S)) {
wc->opcode = IB_WC_RECV;
wc->wc_flags = IB_WC_WITH_IMM;
wc->ex.imm_data = le32_to_cpu(
cqe->immediate_data);
} else {
wc->opcode = IB_WC_RECV;
wc->wc_flags = 0;
}
break;
default:
wc->status = IB_WC_GENERAL_ERR;
break;
}
/* Update tail pointer, record wr_id */
wq = &(*cur_qp)->rq;
wc->wr_id = wq->wrid[wq->tail & (wq->wqe_cnt - 1)];
++wq->tail;
wc->sl = (u8)roce_get_field(cqe->cqe_byte_20, CQE_BYTE_20_SL_M,
CQE_BYTE_20_SL_S);
wc->src_qp = (u8)roce_get_field(cqe->cqe_byte_20,
CQE_BYTE_20_REMOTE_QPN_M,
CQE_BYTE_20_REMOTE_QPN_S);
wc->wc_flags |= (roce_get_bit(cqe->cqe_byte_20,
CQE_BYTE_20_GRH_PRESENT_S) ?
IB_WC_GRH : 0);
wc->pkey_index = (u16)roce_get_field(cqe->cqe_byte_28,
CQE_BYTE_28_P_KEY_IDX_M,
CQE_BYTE_28_P_KEY_IDX_S);
}
return 0;
}
int hns_roce_v1_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc)
{
struct hns_roce_cq *hr_cq = to_hr_cq(ibcq);
struct hns_roce_qp *cur_qp = NULL;
unsigned long flags;
int npolled;
int ret = 0;
spin_lock_irqsave(&hr_cq->lock, flags);
for (npolled = 0; npolled < num_entries; ++npolled) {
ret = hns_roce_v1_poll_one(hr_cq, &cur_qp, wc + npolled);
if (ret)
break;
}
if (npolled) {
hns_roce_v1_cq_set_ci(hr_cq, hr_cq->cons_index,
&to_hr_dev(ibcq->device)->cq_db_lock);
}
spin_unlock_irqrestore(&hr_cq->lock, flags);
if (ret == 0 || ret == -EAGAIN)
return npolled;
else
return ret;
}
static int hns_roce_v1_qp_modify(struct hns_roce_dev *hr_dev,
struct hns_roce_mtt *mtt,
enum hns_roce_qp_state cur_state,
enum hns_roce_qp_state new_state,
struct hns_roce_qp_context *context,
struct hns_roce_qp *hr_qp)
{
static const u16
op[HNS_ROCE_QP_NUM_STATE][HNS_ROCE_QP_NUM_STATE] = {
[HNS_ROCE_QP_STATE_RST] = {
[HNS_ROCE_QP_STATE_RST] = HNS_ROCE_CMD_2RST_QP,
[HNS_ROCE_QP_STATE_ERR] = HNS_ROCE_CMD_2ERR_QP,
[HNS_ROCE_QP_STATE_INIT] = HNS_ROCE_CMD_RST2INIT_QP,
},
[HNS_ROCE_QP_STATE_INIT] = {
[HNS_ROCE_QP_STATE_RST] = HNS_ROCE_CMD_2RST_QP,
[HNS_ROCE_QP_STATE_ERR] = HNS_ROCE_CMD_2ERR_QP,
/* Note: In v1 engine, HW doesn't support RST2INIT.
* We use RST2INIT cmd instead of INIT2INIT.
*/
[HNS_ROCE_QP_STATE_INIT] = HNS_ROCE_CMD_RST2INIT_QP,
[HNS_ROCE_QP_STATE_RTR] = HNS_ROCE_CMD_INIT2RTR_QP,
},
[HNS_ROCE_QP_STATE_RTR] = {
[HNS_ROCE_QP_STATE_RST] = HNS_ROCE_CMD_2RST_QP,
[HNS_ROCE_QP_STATE_ERR] = HNS_ROCE_CMD_2ERR_QP,
[HNS_ROCE_QP_STATE_RTS] = HNS_ROCE_CMD_RTR2RTS_QP,
},
[HNS_ROCE_QP_STATE_RTS] = {
[HNS_ROCE_QP_STATE_RST] = HNS_ROCE_CMD_2RST_QP,
[HNS_ROCE_QP_STATE_ERR] = HNS_ROCE_CMD_2ERR_QP,
[HNS_ROCE_QP_STATE_RTS] = HNS_ROCE_CMD_RTS2RTS_QP,
[HNS_ROCE_QP_STATE_SQD] = HNS_ROCE_CMD_RTS2SQD_QP,
},
[HNS_ROCE_QP_STATE_SQD] = {
[HNS_ROCE_QP_STATE_RST] = HNS_ROCE_CMD_2RST_QP,
[HNS_ROCE_QP_STATE_ERR] = HNS_ROCE_CMD_2ERR_QP,
[HNS_ROCE_QP_STATE_RTS] = HNS_ROCE_CMD_SQD2RTS_QP,
[HNS_ROCE_QP_STATE_SQD] = HNS_ROCE_CMD_SQD2SQD_QP,
},
[HNS_ROCE_QP_STATE_ERR] = {
[HNS_ROCE_QP_STATE_RST] = HNS_ROCE_CMD_2RST_QP,
[HNS_ROCE_QP_STATE_ERR] = HNS_ROCE_CMD_2ERR_QP,
}
};
struct hns_roce_cmd_mailbox *mailbox;
struct device *dev = &hr_dev->pdev->dev;
int ret = 0;
if (cur_state >= HNS_ROCE_QP_NUM_STATE ||
new_state >= HNS_ROCE_QP_NUM_STATE ||
!op[cur_state][new_state]) {
dev_err(dev, "[modify_qp]not support state %d to %d\n",
cur_state, new_state);
return -EINVAL;
}
if (op[cur_state][new_state] == HNS_ROCE_CMD_2RST_QP)
return hns_roce_cmd_mbox(hr_dev, 0, 0, hr_qp->qpn, 2,
HNS_ROCE_CMD_2RST_QP,
HNS_ROCE_CMD_TIME_CLASS_A);
if (op[cur_state][new_state] == HNS_ROCE_CMD_2ERR_QP)
return hns_roce_cmd_mbox(hr_dev, 0, 0, hr_qp->qpn, 2,
HNS_ROCE_CMD_2ERR_QP,
HNS_ROCE_CMD_TIME_CLASS_A);
mailbox = hns_roce_alloc_cmd_mailbox(hr_dev);
if (IS_ERR(mailbox))
return PTR_ERR(mailbox);
memcpy(mailbox->buf, context, sizeof(*context));
ret = hns_roce_cmd_mbox(hr_dev, mailbox->dma, 0, hr_qp->qpn, 0,
op[cur_state][new_state],
HNS_ROCE_CMD_TIME_CLASS_C);
hns_roce_free_cmd_mailbox(hr_dev, mailbox);
return ret;
}
static int hns_roce_v1_m_sqp(struct ib_qp *ibqp, const struct ib_qp_attr *attr,
int attr_mask, enum ib_qp_state cur_state,
enum ib_qp_state new_state)
{
struct hns_roce_dev *hr_dev = to_hr_dev(ibqp->device);
struct hns_roce_qp *hr_qp = to_hr_qp(ibqp);
struct hns_roce_sqp_context *context;
struct device *dev = &hr_dev->pdev->dev;
dma_addr_t dma_handle = 0;
int rq_pa_start;
u32 reg_val;
u64 *mtts;
u32 *addr;
context = kzalloc(sizeof(*context), GFP_KERNEL);
if (!context)
return -ENOMEM;
/* Search QP buf's MTTs */
mtts = hns_roce_table_find(&hr_dev->mr_table.mtt_table,
hr_qp->mtt.first_seg, &dma_handle);
if (!mtts) {
dev_err(dev, "qp buf pa find failed\n");
goto out;
}
if (cur_state == IB_QPS_RESET && new_state == IB_QPS_INIT) {
roce_set_field(context->qp1c_bytes_4,
QP1C_BYTES_4_SQ_WQE_SHIFT_M,
QP1C_BYTES_4_SQ_WQE_SHIFT_S,
ilog2((unsigned int)hr_qp->sq.wqe_cnt));
roce_set_field(context->qp1c_bytes_4,
QP1C_BYTES_4_RQ_WQE_SHIFT_M,
QP1C_BYTES_4_RQ_WQE_SHIFT_S,
ilog2((unsigned int)hr_qp->rq.wqe_cnt));
roce_set_field(context->qp1c_bytes_4, QP1C_BYTES_4_PD_M,
QP1C_BYTES_4_PD_S, to_hr_pd(ibqp->pd)->pdn);
context->sq_rq_bt_l = (u32)(dma_handle);
roce_set_field(context->qp1c_bytes_12,
QP1C_BYTES_12_SQ_RQ_BT_H_M,
QP1C_BYTES_12_SQ_RQ_BT_H_S,
((u32)(dma_handle >> 32)));
roce_set_field(context->qp1c_bytes_16, QP1C_BYTES_16_RQ_HEAD_M,
QP1C_BYTES_16_RQ_HEAD_S, hr_qp->rq.head);
roce_set_field(context->qp1c_bytes_16, QP1C_BYTES_16_PORT_NUM_M,
QP1C_BYTES_16_PORT_NUM_S, hr_qp->phy_port);
roce_set_bit(context->qp1c_bytes_16,
QP1C_BYTES_16_SIGNALING_TYPE_S,
hr_qp->sq_signal_bits);
roce_set_bit(context->qp1c_bytes_16, QP1C_BYTES_16_RQ_BA_FLG_S,
1);
roce_set_bit(context->qp1c_bytes_16, QP1C_BYTES_16_SQ_BA_FLG_S,
1);
roce_set_bit(context->qp1c_bytes_16, QP1C_BYTES_16_QP1_ERR_S,
0);
roce_set_field(context->qp1c_bytes_20, QP1C_BYTES_20_SQ_HEAD_M,
QP1C_BYTES_20_SQ_HEAD_S, hr_qp->sq.head);
roce_set_field(context->qp1c_bytes_20, QP1C_BYTES_20_PKEY_IDX_M,
QP1C_BYTES_20_PKEY_IDX_S, attr->pkey_index);
rq_pa_start = (u32)hr_qp->rq.offset / PAGE_SIZE;
context->cur_rq_wqe_ba_l = (u32)(mtts[rq_pa_start]);
roce_set_field(context->qp1c_bytes_28,
QP1C_BYTES_28_CUR_RQ_WQE_BA_H_M,
QP1C_BYTES_28_CUR_RQ_WQE_BA_H_S,
(mtts[rq_pa_start]) >> 32);
roce_set_field(context->qp1c_bytes_28,
QP1C_BYTES_28_RQ_CUR_IDX_M,
QP1C_BYTES_28_RQ_CUR_IDX_S, 0);
roce_set_field(context->qp1c_bytes_32,
QP1C_BYTES_32_RX_CQ_NUM_M,
QP1C_BYTES_32_RX_CQ_NUM_S,
to_hr_cq(ibqp->recv_cq)->cqn);
roce_set_field(context->qp1c_bytes_32,
QP1C_BYTES_32_TX_CQ_NUM_M,
QP1C_BYTES_32_TX_CQ_NUM_S,
to_hr_cq(ibqp->send_cq)->cqn);
context->cur_sq_wqe_ba_l = (u32)mtts[0];
roce_set_field(context->qp1c_bytes_40,
QP1C_BYTES_40_CUR_SQ_WQE_BA_H_M,
QP1C_BYTES_40_CUR_SQ_WQE_BA_H_S,
(mtts[0]) >> 32);
roce_set_field(context->qp1c_bytes_40,
QP1C_BYTES_40_SQ_CUR_IDX_M,
QP1C_BYTES_40_SQ_CUR_IDX_S, 0);
/* Copy context to QP1C register */
addr = (u32 *)(hr_dev->reg_base + ROCEE_QP1C_CFG0_0_REG +
hr_qp->phy_port * sizeof(*context));
writel(context->qp1c_bytes_4, addr);
writel(context->sq_rq_bt_l, addr + 1);
writel(context->qp1c_bytes_12, addr + 2);
writel(context->qp1c_bytes_16, addr + 3);
writel(context->qp1c_bytes_20, addr + 4);
writel(context->cur_rq_wqe_ba_l, addr + 5);
writel(context->qp1c_bytes_28, addr + 6);
writel(context->qp1c_bytes_32, addr + 7);
writel(context->cur_sq_wqe_ba_l, addr + 8);
writel(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));
roce_set_field(reg_val, ROCEE_QP1C_CFG0_0_ROCEE_QP1C_QP_ST_M,
ROCEE_QP1C_CFG0_0_ROCEE_QP1C_QP_ST_S, new_state);
roce_write(hr_dev, ROCEE_QP1C_CFG0_0_REG +
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;
dma_addr_t dma_handle_2 = 0;
dma_addr_t dma_handle = 0;
uint32_t doorbell[2] = {0};
int rq_pa_start = 0;
u64 *mtts_2 = NULL;
int ret = -EINVAL;
u64 *mtts = NULL;
int port;
u8 *dmac;
u8 *smac;
context = kzalloc(sizeof(*context), GFP_KERNEL);
if (!context)
return -ENOMEM;
/* Search qp buf's mtts */
mtts = hns_roce_table_find(&hr_dev->mr_table.mtt_table,
hr_qp->mtt.first_seg, &dma_handle);
if (mtts == NULL) {
dev_err(dev, "qp buf pa find failed\n");
goto out;
}
/* Search IRRL's mtts */
mtts_2 = hns_roce_table_find(&hr_dev->qp_table.irrl_table, hr_qp->qpn,
&dma_handle_2);
if (mtts_2 == NULL) {
dev_err(dev, "qp irrl_table find failed\n");
goto out;
}
/*
*Reset to init
* Mandatory param:
* IB_QP_STATE | IB_QP_PKEY_INDEX | IB_QP_PORT | IB_QP_ACCESS_FLAGS
* Optional param: NA
*/
if (cur_state == IB_QPS_RESET && new_state == IB_QPS_INIT) {
roce_set_field(context->qpc_bytes_4,
QP_CONTEXT_QPC_BYTES_4_TRANSPORT_SERVICE_TYPE_M,
QP_CONTEXT_QPC_BYTES_4_TRANSPORT_SERVICE_TYPE_S,
to_hr_qp_type(hr_qp->ibqp.qp_type));
roce_set_bit(context->qpc_bytes_4,
QP_CONTEXT_QPC_BYTE_4_ENABLE_FPMR_S, 0);
roce_set_bit(context->qpc_bytes_4,
QP_CONTEXT_QPC_BYTE_4_RDMA_READ_ENABLE_S,
!!(attr->qp_access_flags & IB_ACCESS_REMOTE_READ));
roce_set_bit(context->qpc_bytes_4,
QP_CONTEXT_QPC_BYTE_4_RDMA_WRITE_ENABLE_S,
!!(attr->qp_access_flags & IB_ACCESS_REMOTE_WRITE)
);
roce_set_bit(context->qpc_bytes_4,
QP_CONTEXT_QPC_BYTE_4_ATOMIC_OPERATION_ENABLE_S,
!!(attr->qp_access_flags & IB_ACCESS_REMOTE_ATOMIC)
);
roce_set_bit(context->qpc_bytes_4,
QP_CONTEXT_QPC_BYTE_4_RDMAR_USE_S, 1);
roce_set_field(context->qpc_bytes_4,
QP_CONTEXT_QPC_BYTES_4_SQ_WQE_SHIFT_M,
QP_CONTEXT_QPC_BYTES_4_SQ_WQE_SHIFT_S,
ilog2((unsigned int)hr_qp->sq.wqe_cnt));
roce_set_field(context->qpc_bytes_4,
QP_CONTEXT_QPC_BYTES_4_RQ_WQE_SHIFT_M,
QP_CONTEXT_QPC_BYTES_4_RQ_WQE_SHIFT_S,
ilog2((unsigned int)hr_qp->rq.wqe_cnt));
roce_set_field(context->qpc_bytes_4,
QP_CONTEXT_QPC_BYTES_4_PD_M,
QP_CONTEXT_QPC_BYTES_4_PD_S,
to_hr_pd(ibqp->pd)->pdn);
hr_qp->access_flags = attr->qp_access_flags;
roce_set_field(context->qpc_bytes_8,
QP_CONTEXT_QPC_BYTES_8_TX_COMPLETION_M,
QP_CONTEXT_QPC_BYTES_8_TX_COMPLETION_S,
to_hr_cq(ibqp->send_cq)->cqn);
roce_set_field(context->qpc_bytes_8,
QP_CONTEXT_QPC_BYTES_8_RX_COMPLETION_M,
QP_CONTEXT_QPC_BYTES_8_RX_COMPLETION_S,
to_hr_cq(ibqp->recv_cq)->cqn);
if (ibqp->srq)
roce_set_field(context->qpc_bytes_12,
QP_CONTEXT_QPC_BYTES_12_SRQ_NUMBER_M,
QP_CONTEXT_QPC_BYTES_12_SRQ_NUMBER_S,
to_hr_srq(ibqp->srq)->srqn);
roce_set_field(context->qpc_bytes_12,
QP_CONTEXT_QPC_BYTES_12_P_KEY_INDEX_M,
QP_CONTEXT_QPC_BYTES_12_P_KEY_INDEX_S,
attr->pkey_index);
hr_qp->pkey_index = attr->pkey_index;
roce_set_field(context->qpc_bytes_16,
QP_CONTEXT_QPC_BYTES_16_QP_NUM_M,
QP_CONTEXT_QPC_BYTES_16_QP_NUM_S, hr_qp->qpn);
} else if (cur_state == IB_QPS_INIT && new_state == IB_QPS_INIT) {
roce_set_field(context->qpc_bytes_4,
QP_CONTEXT_QPC_BYTES_4_TRANSPORT_SERVICE_TYPE_M,
QP_CONTEXT_QPC_BYTES_4_TRANSPORT_SERVICE_TYPE_S,
to_hr_qp_type(hr_qp->ibqp.qp_type));
roce_set_bit(context->qpc_bytes_4,
QP_CONTEXT_QPC_BYTE_4_ENABLE_FPMR_S, 0);
if (attr_mask & IB_QP_ACCESS_FLAGS) {
roce_set_bit(context->qpc_bytes_4,
QP_CONTEXT_QPC_BYTE_4_RDMA_READ_ENABLE_S,
!!(attr->qp_access_flags &
IB_ACCESS_REMOTE_READ));
roce_set_bit(context->qpc_bytes_4,
QP_CONTEXT_QPC_BYTE_4_RDMA_WRITE_ENABLE_S,
!!(attr->qp_access_flags &
IB_ACCESS_REMOTE_WRITE));
} else {
roce_set_bit(context->qpc_bytes_4,
QP_CONTEXT_QPC_BYTE_4_RDMA_READ_ENABLE_S,
!!(hr_qp->access_flags &
IB_ACCESS_REMOTE_READ));
roce_set_bit(context->qpc_bytes_4,
QP_CONTEXT_QPC_BYTE_4_RDMA_WRITE_ENABLE_S,
!!(hr_qp->access_flags &
IB_ACCESS_REMOTE_WRITE));
}
roce_set_bit(context->qpc_bytes_4,
QP_CONTEXT_QPC_BYTE_4_RDMAR_USE_S, 1);
roce_set_field(context->qpc_bytes_4,
QP_CONTEXT_QPC_BYTES_4_SQ_WQE_SHIFT_M,
QP_CONTEXT_QPC_BYTES_4_SQ_WQE_SHIFT_S,
ilog2((unsigned int)hr_qp->sq.wqe_cnt));
roce_set_field(context->qpc_bytes_4,
QP_CONTEXT_QPC_BYTES_4_RQ_WQE_SHIFT_M,
QP_CONTEXT_QPC_BYTES_4_RQ_WQE_SHIFT_S,
ilog2((unsigned int)hr_qp->rq.wqe_cnt));
roce_set_field(context->qpc_bytes_4,
QP_CONTEXT_QPC_BYTES_4_PD_M,
QP_CONTEXT_QPC_BYTES_4_PD_S,
to_hr_pd(ibqp->pd)->pdn);
roce_set_field(context->qpc_bytes_8,
QP_CONTEXT_QPC_BYTES_8_TX_COMPLETION_M,
QP_CONTEXT_QPC_BYTES_8_TX_COMPLETION_S,
to_hr_cq(ibqp->send_cq)->cqn);
roce_set_field(context->qpc_bytes_8,
QP_CONTEXT_QPC_BYTES_8_RX_COMPLETION_M,
QP_CONTEXT_QPC_BYTES_8_RX_COMPLETION_S,
to_hr_cq(ibqp->recv_cq)->cqn);
if (ibqp->srq)
roce_set_field(context->qpc_bytes_12,
QP_CONTEXT_QPC_BYTES_12_SRQ_NUMBER_M,
QP_CONTEXT_QPC_BYTES_12_SRQ_NUMBER_S,
to_hr_srq(ibqp->srq)->srqn);
if (attr_mask & IB_QP_PKEY_INDEX)
roce_set_field(context->qpc_bytes_12,
QP_CONTEXT_QPC_BYTES_12_P_KEY_INDEX_M,
QP_CONTEXT_QPC_BYTES_12_P_KEY_INDEX_S,
attr->pkey_index);
else
roce_set_field(context->qpc_bytes_12,
QP_CONTEXT_QPC_BYTES_12_P_KEY_INDEX_M,
QP_CONTEXT_QPC_BYTES_12_P_KEY_INDEX_S,
hr_qp->pkey_index);
roce_set_field(context->qpc_bytes_16,
QP_CONTEXT_QPC_BYTES_16_QP_NUM_M,
QP_CONTEXT_QPC_BYTES_16_QP_NUM_S, hr_qp->qpn);
} else if (cur_state == IB_QPS_INIT && new_state == IB_QPS_RTR) {
if ((attr_mask & IB_QP_ALT_PATH) ||
(attr_mask & IB_QP_ACCESS_FLAGS) ||
(attr_mask & IB_QP_PKEY_INDEX) ||
(attr_mask & IB_QP_QKEY)) {
dev_err(dev, "INIT2RTR attr_mask error\n");
goto out;
}
dmac = (u8 *)attr->ah_attr.dmac;
context->sq_rq_bt_l = (u32)(dma_handle);
roce_set_field(context->qpc_bytes_24,
QP_CONTEXT_QPC_BYTES_24_SQ_RQ_BT_H_M,
QP_CONTEXT_QPC_BYTES_24_SQ_RQ_BT_H_S,
((u32)(dma_handle >> 32)));
roce_set_bit(context->qpc_bytes_24,
QP_CONTEXT_QPC_BYTE_24_REMOTE_ENABLE_E2E_CREDITS_S,
1);
roce_set_field(context->qpc_bytes_24,
QP_CONTEXT_QPC_BYTES_24_MINIMUM_RNR_NAK_TIMER_M,
QP_CONTEXT_QPC_BYTES_24_MINIMUM_RNR_NAK_TIMER_S,
attr->min_rnr_timer);
context->irrl_ba_l = (u32)(dma_handle_2);
roce_set_field(context->qpc_bytes_32,
QP_CONTEXT_QPC_BYTES_32_IRRL_BA_H_M,
QP_CONTEXT_QPC_BYTES_32_IRRL_BA_H_S,
((u32)(dma_handle_2 >> 32)) &
QP_CONTEXT_QPC_BYTES_32_IRRL_BA_H_M);
roce_set_field(context->qpc_bytes_32,
QP_CONTEXT_QPC_BYTES_32_MIG_STATE_M,
QP_CONTEXT_QPC_BYTES_32_MIG_STATE_S, 0);
roce_set_bit(context->qpc_bytes_32,
QP_CONTEXT_QPC_BYTE_32_LOCAL_ENABLE_E2E_CREDITS_S,
1);
roce_set_bit(context->qpc_bytes_32,
QP_CONTEXT_QPC_BYTE_32_SIGNALING_TYPE_S,
hr_qp->sq_signal_bits);
for (port = 0; port < hr_dev->caps.num_ports; port++) {
smac = (u8 *)hr_dev->dev_addr[port];
dev_dbg(dev, "smac: %2x: %2x: %2x: %2x: %2x: %2x\n",
smac[0], smac[1], smac[2], smac[3], smac[4],
smac[5]);
if ((dmac[0] == smac[0]) && (dmac[1] == smac[1]) &&
(dmac[2] == smac[2]) && (dmac[3] == smac[3]) &&
(dmac[4] == smac[4]) && (dmac[5] == smac[5])) {
roce_set_bit(context->qpc_bytes_32,
QP_CONTEXT_QPC_BYTE_32_LOOPBACK_INDICATOR_S,
1);
break;
}
}
if (hr_dev->loop_idc == 0x1)
roce_set_bit(context->qpc_bytes_32,
QP_CONTEXT_QPC_BYTE_32_LOOPBACK_INDICATOR_S, 1);
roce_set_bit(context->qpc_bytes_32,
QP_CONTEXT_QPC_BYTE_32_GLOBAL_HEADER_S,
attr->ah_attr.ah_flags);
roce_set_field(context->qpc_bytes_32,
QP_CONTEXT_QPC_BYTES_32_RESPONDER_RESOURCES_M,
QP_CONTEXT_QPC_BYTES_32_RESPONDER_RESOURCES_S,
ilog2((unsigned int)attr->max_dest_rd_atomic));
roce_set_field(context->qpc_bytes_36,
QP_CONTEXT_QPC_BYTES_36_DEST_QP_M,
QP_CONTEXT_QPC_BYTES_36_DEST_QP_S,
attr->dest_qp_num);
/* Configure GID index */
roce_set_field(context->qpc_bytes_36,
QP_CONTEXT_QPC_BYTES_36_SGID_INDEX_M,
QP_CONTEXT_QPC_BYTES_36_SGID_INDEX_S,
hns_get_gid_index(hr_dev,
attr->ah_attr.port_num - 1,
attr->ah_attr.grh.sgid_index));
memcpy(&(context->dmac_l), dmac, 4);
roce_set_field(context->qpc_bytes_44,
QP_CONTEXT_QPC_BYTES_44_DMAC_H_M,
QP_CONTEXT_QPC_BYTES_44_DMAC_H_S,
*((u16 *)(&dmac[4])));
roce_set_field(context->qpc_bytes_44,
QP_CONTEXT_QPC_BYTES_44_MAXIMUM_STATIC_RATE_M,
QP_CONTEXT_QPC_BYTES_44_MAXIMUM_STATIC_RATE_S,
attr->ah_attr.static_rate);
roce_set_field(context->qpc_bytes_44,
QP_CONTEXT_QPC_BYTES_44_HOPLMT_M,
QP_CONTEXT_QPC_BYTES_44_HOPLMT_S,
attr->ah_attr.grh.hop_limit);
roce_set_field(context->qpc_bytes_48,
QP_CONTEXT_QPC_BYTES_48_FLOWLABEL_M,
QP_CONTEXT_QPC_BYTES_48_FLOWLABEL_S,
attr->ah_attr.grh.flow_label);
roce_set_field(context->qpc_bytes_48,
QP_CONTEXT_QPC_BYTES_48_TCLASS_M,
QP_CONTEXT_QPC_BYTES_48_TCLASS_S,
attr->ah_attr.grh.traffic_class);
roce_set_field(context->qpc_bytes_48,
QP_CONTEXT_QPC_BYTES_48_MTU_M,
QP_CONTEXT_QPC_BYTES_48_MTU_S, attr->path_mtu);
memcpy(context->dgid, attr->ah_attr.grh.dgid.raw,
sizeof(attr->ah_attr.grh.dgid.raw));
dev_dbg(dev, "dmac:%x :%lx\n", context->dmac_l,
roce_get_field(context->qpc_bytes_44,
QP_CONTEXT_QPC_BYTES_44_DMAC_H_M,
QP_CONTEXT_QPC_BYTES_44_DMAC_H_S));
roce_set_field(context->qpc_bytes_68,
QP_CONTEXT_QPC_BYTES_68_RQ_HEAD_M,
QP_CONTEXT_QPC_BYTES_68_RQ_HEAD_S, 0);
roce_set_field(context->qpc_bytes_68,
QP_CONTEXT_QPC_BYTES_68_RQ_CUR_INDEX_M,
QP_CONTEXT_QPC_BYTES_68_RQ_CUR_INDEX_S, 0);
rq_pa_start = (u32)hr_qp->rq.offset / PAGE_SIZE;
context->cur_rq_wqe_ba_l = (u32)(mtts[rq_pa_start]);
roce_set_field(context->qpc_bytes_76,
QP_CONTEXT_QPC_BYTES_76_CUR_RQ_WQE_BA_H_M,
QP_CONTEXT_QPC_BYTES_76_CUR_RQ_WQE_BA_H_S,
mtts[rq_pa_start] >> 32);
roce_set_field(context->qpc_bytes_76,
QP_CONTEXT_QPC_BYTES_76_RX_REQ_MSN_M,
QP_CONTEXT_QPC_BYTES_76_RX_REQ_MSN_S, 0);
context->rx_rnr_time = 0;
roce_set_field(context->qpc_bytes_84,
QP_CONTEXT_QPC_BYTES_84_LAST_ACK_PSN_M,
QP_CONTEXT_QPC_BYTES_84_LAST_ACK_PSN_S,
attr->rq_psn - 1);
roce_set_field(context->qpc_bytes_84,
QP_CONTEXT_QPC_BYTES_84_TRRL_HEAD_M,
QP_CONTEXT_QPC_BYTES_84_TRRL_HEAD_S, 0);
roce_set_field(context->qpc_bytes_88,
QP_CONTEXT_QPC_BYTES_88_RX_REQ_EPSN_M,
QP_CONTEXT_QPC_BYTES_88_RX_REQ_EPSN_S,
attr->rq_psn);
roce_set_bit(context->qpc_bytes_88,
QP_CONTEXT_QPC_BYTES_88_RX_REQ_PSN_ERR_FLAG_S, 0);
roce_set_bit(context->qpc_bytes_88,
QP_CONTEXT_QPC_BYTES_88_RX_LAST_OPCODE_FLG_S, 0);
roce_set_field(context->qpc_bytes_88,
QP_CONTEXT_QPC_BYTES_88_RQ_REQ_LAST_OPERATION_TYPE_M,
QP_CONTEXT_QPC_BYTES_88_RQ_REQ_LAST_OPERATION_TYPE_S,
0);
roce_set_field(context->qpc_bytes_88,
QP_CONTEXT_QPC_BYTES_88_RQ_REQ_RDMA_WR_FLAG_M,
QP_CONTEXT_QPC_BYTES_88_RQ_REQ_RDMA_WR_FLAG_S,
0);
context->dma_length = 0;
context->r_key = 0;
context->va_l = 0;
context->va_h = 0;
roce_set_field(context->qpc_bytes_108,
QP_CONTEXT_QPC_BYTES_108_TRRL_SDB_PSN_M,
QP_CONTEXT_QPC_BYTES_108_TRRL_SDB_PSN_S, 0);
roce_set_bit(context->qpc_bytes_108,
QP_CONTEXT_QPC_BYTES_108_TRRL_SDB_PSN_FLG_S, 0);
roce_set_bit(context->qpc_bytes_108,
QP_CONTEXT_QPC_BYTES_108_TRRL_TDB_PSN_FLG_S, 0);
roce_set_field(context->qpc_bytes_112,
QP_CONTEXT_QPC_BYTES_112_TRRL_TDB_PSN_M,
QP_CONTEXT_QPC_BYTES_112_TRRL_TDB_PSN_S, 0);
roce_set_field(context->qpc_bytes_112,
QP_CONTEXT_QPC_BYTES_112_TRRL_TAIL_M,
QP_CONTEXT_QPC_BYTES_112_TRRL_TAIL_S, 0);
/* For chip resp ack */
roce_set_field(context->qpc_bytes_156,
QP_CONTEXT_QPC_BYTES_156_PORT_NUM_M,
QP_CONTEXT_QPC_BYTES_156_PORT_NUM_S,
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, attr->ah_attr.sl);
hr_qp->sl = attr->ah_attr.sl;
} else if (cur_state == IB_QPS_RTR &&
new_state == IB_QPS_RTS) {
/* If exist optional param, return error */
if ((attr_mask & IB_QP_ALT_PATH) ||
(attr_mask & IB_QP_ACCESS_FLAGS) ||
(attr_mask & IB_QP_QKEY) ||
(attr_mask & IB_QP_PATH_MIG_STATE) ||
(attr_mask & IB_QP_CUR_STATE) ||
(attr_mask & IB_QP_MIN_RNR_TIMER)) {
dev_err(dev, "RTR2RTS attr_mask error\n");
goto out;
}
context->rx_cur_sq_wqe_ba_l = (u32)(mtts[0]);
roce_set_field(context->qpc_bytes_120,
QP_CONTEXT_QPC_BYTES_120_RX_CUR_SQ_WQE_BA_H_M,
QP_CONTEXT_QPC_BYTES_120_RX_CUR_SQ_WQE_BA_H_S,
(mtts[0]) >> 32);
roce_set_field(context->qpc_bytes_124,
QP_CONTEXT_QPC_BYTES_124_RX_ACK_MSN_M,
QP_CONTEXT_QPC_BYTES_124_RX_ACK_MSN_S, 0);
roce_set_field(context->qpc_bytes_124,
QP_CONTEXT_QPC_BYTES_124_IRRL_MSG_IDX_M,
QP_CONTEXT_QPC_BYTES_124_IRRL_MSG_IDX_S, 0);
roce_set_field(context->qpc_bytes_128,
QP_CONTEXT_QPC_BYTES_128_RX_ACK_EPSN_M,
QP_CONTEXT_QPC_BYTES_128_RX_ACK_EPSN_S,
attr->sq_psn);
roce_set_bit(context->qpc_bytes_128,
QP_CONTEXT_QPC_BYTES_128_RX_ACK_PSN_ERR_FLG_S, 0);
roce_set_field(context->qpc_bytes_128,
QP_CONTEXT_QPC_BYTES_128_ACK_LAST_OPERATION_TYPE_M,
QP_CONTEXT_QPC_BYTES_128_ACK_LAST_OPERATION_TYPE_S,
0);
roce_set_bit(context->qpc_bytes_128,
QP_CONTEXT_QPC_BYTES_128_IRRL_PSN_VLD_FLG_S, 0);
roce_set_field(context->qpc_bytes_132,
QP_CONTEXT_QPC_BYTES_132_IRRL_PSN_M,
QP_CONTEXT_QPC_BYTES_132_IRRL_PSN_S, 0);
roce_set_field(context->qpc_bytes_132,
QP_CONTEXT_QPC_BYTES_132_IRRL_TAIL_M,
QP_CONTEXT_QPC_BYTES_132_IRRL_TAIL_S, 0);
roce_set_field(context->qpc_bytes_136,
QP_CONTEXT_QPC_BYTES_136_RETRY_MSG_PSN_M,
QP_CONTEXT_QPC_BYTES_136_RETRY_MSG_PSN_S,
attr->sq_psn);
roce_set_field(context->qpc_bytes_136,
QP_CONTEXT_QPC_BYTES_136_RETRY_MSG_FPKT_PSN_L_M,
QP_CONTEXT_QPC_BYTES_136_RETRY_MSG_FPKT_PSN_L_S,
attr->sq_psn);
roce_set_field(context->qpc_bytes_140,
QP_CONTEXT_QPC_BYTES_140_RETRY_MSG_FPKT_PSN_H_M,
QP_CONTEXT_QPC_BYTES_140_RETRY_MSG_FPKT_PSN_H_S,
(attr->sq_psn >> SQ_PSN_SHIFT));
roce_set_field(context->qpc_bytes_140,
QP_CONTEXT_QPC_BYTES_140_RETRY_MSG_MSN_M,
QP_CONTEXT_QPC_BYTES_140_RETRY_MSG_MSN_S, 0);
roce_set_bit(context->qpc_bytes_140,
QP_CONTEXT_QPC_BYTES_140_RNR_RETRY_FLG_S, 0);
roce_set_field(context->qpc_bytes_144,
QP_CONTEXT_QPC_BYTES_144_QP_STATE_M,
QP_CONTEXT_QPC_BYTES_144_QP_STATE_S,
attr->qp_state);
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, 0);
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, 0);
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);
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, attr->ah_attr.sl);
hr_qp->sl = attr->ah_attr.sl;
roce_set_field(context->qpc_bytes_156,
QP_CONTEXT_QPC_BYTES_156_INITIATOR_DEPTH_M,
QP_CONTEXT_QPC_BYTES_156_INITIATOR_DEPTH_S,
ilog2((unsigned int)attr->max_rd_atomic));
roce_set_field(context->qpc_bytes_156,
QP_CONTEXT_QPC_BYTES_156_ACK_REQ_IND_M,
QP_CONTEXT_QPC_BYTES_156_ACK_REQ_IND_S, 0);
context->pkt_use_len = 0;
roce_set_field(context->qpc_bytes_164,
QP_CONTEXT_QPC_BYTES_164_SQ_PSN_M,
QP_CONTEXT_QPC_BYTES_164_SQ_PSN_S, attr->sq_psn);
roce_set_field(context->qpc_bytes_164,
QP_CONTEXT_QPC_BYTES_164_IRRL_HEAD_M,
QP_CONTEXT_QPC_BYTES_164_IRRL_HEAD_S, 0);
roce_set_field(context->qpc_bytes_168,
QP_CONTEXT_QPC_BYTES_168_RETRY_SQ_PSN_M,
QP_CONTEXT_QPC_BYTES_168_RETRY_SQ_PSN_S,
attr->sq_psn);
roce_set_field(context->qpc_bytes_168,
QP_CONTEXT_QPC_BYTES_168_SGE_USE_FLA_M,
QP_CONTEXT_QPC_BYTES_168_SGE_USE_FLA_S, 0);
roce_set_field(context->qpc_bytes_168,
QP_CONTEXT_QPC_BYTES_168_DB_TYPE_M,
QP_CONTEXT_QPC_BYTES_168_DB_TYPE_S, 0);
roce_set_bit(context->qpc_bytes_168,
QP_CONTEXT_QPC_BYTES_168_MSG_LP_IND_S, 0);
roce_set_bit(context->qpc_bytes_168,
QP_CONTEXT_QPC_BYTES_168_CSDB_LP_IND_S, 0);
roce_set_bit(context->qpc_bytes_168,
QP_CONTEXT_QPC_BYTES_168_QP_ERR_FLG_S, 0);
context->sge_use_len = 0;
roce_set_field(context->qpc_bytes_176,
QP_CONTEXT_QPC_BYTES_176_DB_CUR_INDEX_M,
QP_CONTEXT_QPC_BYTES_176_DB_CUR_INDEX_S, 0);
roce_set_field(context->qpc_bytes_176,
QP_CONTEXT_QPC_BYTES_176_RETRY_DB_CUR_INDEX_M,
QP_CONTEXT_QPC_BYTES_176_RETRY_DB_CUR_INDEX_S,
0);
roce_set_field(context->qpc_bytes_180,
QP_CONTEXT_QPC_BYTES_180_SQ_CUR_INDEX_M,
QP_CONTEXT_QPC_BYTES_180_SQ_CUR_INDEX_S, 0);
roce_set_field(context->qpc_bytes_180,
QP_CONTEXT_QPC_BYTES_180_SQ_HEAD_M,
QP_CONTEXT_QPC_BYTES_180_SQ_HEAD_S, 0);
context->tx_cur_sq_wqe_ba_l = (u32)(mtts[0]);
roce_set_field(context->qpc_bytes_188,
QP_CONTEXT_QPC_BYTES_188_TX_CUR_SQ_WQE_BA_H_M,
QP_CONTEXT_QPC_BYTES_188_TX_CUR_SQ_WQE_BA_H_S,
(mtts[0]) >> 32);
roce_set_bit(context->qpc_bytes_188,
QP_CONTEXT_QPC_BYTES_188_PKT_RETRY_FLG_S, 0);
roce_set_field(context->qpc_bytes_188,
QP_CONTEXT_QPC_BYTES_188_TX_RETRY_CUR_INDEX_M,
QP_CONTEXT_QPC_BYTES_188_TX_RETRY_CUR_INDEX_S,
0);
} 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)) {
roce_set_field(context->qpc_bytes_144,
QP_CONTEXT_QPC_BYTES_144_QP_STATE_M,
QP_CONTEXT_QPC_BYTES_144_QP_STATE_S,
attr->qp_state);
} else {
dev_err(dev, "not support this modify\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, attr->qp_state);
/* SW pass context to HW */
ret = hns_roce_v1_qp_modify(hr_dev, &hr_qp->mtt,
to_hns_roce_state(cur_state),
to_hns_roce_state(new_state), context,
hr_qp);
if (ret) {
dev_err(dev, "hns_roce_qp_modify failed\n");
goto out;
}
/*
* Use rst2init to instead of init2init with drv,
* need to hw to flash RQ HEAD by DB again
*/
if (cur_state == IB_QPS_INIT && new_state == IB_QPS_INIT) {
/* Memory barrier */
wmb();
roce_set_field(doorbell[0], RQ_DOORBELL_U32_4_RQ_HEAD_M,
RQ_DOORBELL_U32_4_RQ_HEAD_S, hr_qp->rq.head);
roce_set_field(doorbell[1], RQ_DOORBELL_U32_8_QPN_M,
RQ_DOORBELL_U32_8_QPN_S, hr_qp->qpn);
roce_set_field(doorbell[1], RQ_DOORBELL_U32_8_CMD_M,
RQ_DOORBELL_U32_8_CMD_S, 1);
roce_set_bit(doorbell[1], RQ_DOORBELL_U32_8_HW_SYNC_S, 1);
if (ibqp->uobject) {
hr_qp->rq.db_reg_l = hr_dev->reg_base +
ROCEE_DB_OTHERS_L_0_REG +
DB_REG_OFFSET * hr_dev->priv_uar.index;
}
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;
}
int hns_roce_v1_modify_qp(struct ib_qp *ibqp, const struct ib_qp_attr *attr,
int attr_mask, enum ib_qp_state cur_state,
enum ib_qp_state new_state)
{
if (ibqp->qp_type == IB_QPT_GSI || ibqp->qp_type == IB_QPT_SMI)
return hns_roce_v1_m_sqp(ibqp, attr, attr_mask, cur_state,
new_state);
else
return hns_roce_v1_m_qp(ibqp, attr, attr_mask, cur_state,
new_state);
}
static enum ib_qp_state to_ib_qp_state(enum hns_roce_qp_state state)
{
switch (state) {
case HNS_ROCE_QP_STATE_RST:
return IB_QPS_RESET;
case HNS_ROCE_QP_STATE_INIT:
return IB_QPS_INIT;
case HNS_ROCE_QP_STATE_RTR:
return IB_QPS_RTR;
case HNS_ROCE_QP_STATE_RTS:
return IB_QPS_RTS;
case HNS_ROCE_QP_STATE_SQD:
return IB_QPS_SQD;
case HNS_ROCE_QP_STATE_ERR:
return IB_QPS_ERR;
default:
return IB_QPS_ERR;
}
}
static int hns_roce_v1_query_qpc(struct hns_roce_dev *hr_dev,
struct hns_roce_qp *hr_qp,
struct hns_roce_qp_context *hr_context)
{
struct hns_roce_cmd_mailbox *mailbox;
int ret;
mailbox = hns_roce_alloc_cmd_mailbox(hr_dev);
if (IS_ERR(mailbox))
return PTR_ERR(mailbox);
ret = hns_roce_cmd_mbox(hr_dev, 0, mailbox->dma, hr_qp->qpn, 0,
HNS_ROCE_CMD_QUERY_QP,
HNS_ROCE_CMD_TIME_CLASS_A);
if (!ret)
memcpy(hr_context, mailbox->buf, sizeof(*hr_context));
else
dev_err(&hr_dev->pdev->dev, "QUERY QP cmd process error\n");
hns_roce_free_cmd_mailbox(hr_dev, mailbox);
return ret;
}
int hns_roce_v1_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr,
int qp_attr_mask, struct ib_qp_init_attr *qp_init_attr)
{
struct hns_roce_dev *hr_dev = to_hr_dev(ibqp->device);
struct hns_roce_qp *hr_qp = to_hr_qp(ibqp);
struct device *dev = &hr_dev->pdev->dev;
struct hns_roce_qp_context *context;
int tmp_qp_state = 0;
int ret = 0;
int state;
context = kzalloc(sizeof(*context), GFP_KERNEL);
if (!context)
return -ENOMEM;
memset(qp_attr, 0, sizeof(*qp_attr));
memset(qp_init_attr, 0, sizeof(*qp_init_attr));
mutex_lock(&hr_qp->mutex);
if (hr_qp->state == IB_QPS_RESET) {
qp_attr->qp_state = IB_QPS_RESET;
goto done;
}
ret = hns_roce_v1_query_qpc(hr_dev, hr_qp, context);
if (ret) {
dev_err(dev, "query qpc error\n");
ret = -EINVAL;
goto out;
}
state = roce_get_field(context->qpc_bytes_144,
QP_CONTEXT_QPC_BYTES_144_QP_STATE_M,
QP_CONTEXT_QPC_BYTES_144_QP_STATE_S);
tmp_qp_state = (int)to_ib_qp_state((enum hns_roce_qp_state)state);
if (tmp_qp_state == -1) {
dev_err(dev, "to_ib_qp_state error\n");
ret = -EINVAL;
goto out;
}
hr_qp->state = (u8)tmp_qp_state;
qp_attr->qp_state = (enum ib_qp_state)hr_qp->state;
qp_attr->path_mtu = (enum ib_mtu)roce_get_field(context->qpc_bytes_48,
QP_CONTEXT_QPC_BYTES_48_MTU_M,
QP_CONTEXT_QPC_BYTES_48_MTU_S);
qp_attr->path_mig_state = IB_MIG_ARMED;
if (hr_qp->ibqp.qp_type == IB_QPT_UD)
qp_attr->qkey = QKEY_VAL;
qp_attr->rq_psn = roce_get_field(context->qpc_bytes_88,
QP_CONTEXT_QPC_BYTES_88_RX_REQ_EPSN_M,
QP_CONTEXT_QPC_BYTES_88_RX_REQ_EPSN_S);
qp_attr->sq_psn = (u32)roce_get_field(context->qpc_bytes_164,
QP_CONTEXT_QPC_BYTES_164_SQ_PSN_M,
QP_CONTEXT_QPC_BYTES_164_SQ_PSN_S);
qp_attr->dest_qp_num = (u8)roce_get_field(context->qpc_bytes_36,
QP_CONTEXT_QPC_BYTES_36_DEST_QP_M,
QP_CONTEXT_QPC_BYTES_36_DEST_QP_S);
qp_attr->qp_access_flags = ((roce_get_bit(context->qpc_bytes_4,
QP_CONTEXT_QPC_BYTE_4_RDMA_READ_ENABLE_S)) << 2) |
((roce_get_bit(context->qpc_bytes_4,
QP_CONTEXT_QPC_BYTE_4_RDMA_WRITE_ENABLE_S)) << 1) |
((roce_get_bit(context->qpc_bytes_4,
QP_CONTEXT_QPC_BYTE_4_ATOMIC_OPERATION_ENABLE_S)) << 3);
if (hr_qp->ibqp.qp_type == IB_QPT_RC ||
hr_qp->ibqp.qp_type == IB_QPT_UC) {
qp_attr->ah_attr.sl = roce_get_field(context->qpc_bytes_156,
QP_CONTEXT_QPC_BYTES_156_SL_M,
QP_CONTEXT_QPC_BYTES_156_SL_S);
qp_attr->ah_attr.grh.flow_label = roce_get_field(
context->qpc_bytes_48,
QP_CONTEXT_QPC_BYTES_48_FLOWLABEL_M,
QP_CONTEXT_QPC_BYTES_48_FLOWLABEL_S);
qp_attr->ah_attr.grh.sgid_index = roce_get_field(
context->qpc_bytes_36,
QP_CONTEXT_QPC_BYTES_36_SGID_INDEX_M,
QP_CONTEXT_QPC_BYTES_36_SGID_INDEX_S);
qp_attr->ah_attr.grh.hop_limit = roce_get_field(
context->qpc_bytes_44,
QP_CONTEXT_QPC_BYTES_44_HOPLMT_M,
QP_CONTEXT_QPC_BYTES_44_HOPLMT_S);
qp_attr->ah_attr.grh.traffic_class = roce_get_field(
context->qpc_bytes_48,
QP_CONTEXT_QPC_BYTES_48_TCLASS_M,
QP_CONTEXT_QPC_BYTES_48_TCLASS_S);
memcpy(qp_attr->ah_attr.grh.dgid.raw, context->dgid,
sizeof(qp_attr->ah_attr.grh.dgid.raw));
}
qp_attr->pkey_index = roce_get_field(context->qpc_bytes_12,
QP_CONTEXT_QPC_BYTES_12_P_KEY_INDEX_M,
QP_CONTEXT_QPC_BYTES_12_P_KEY_INDEX_S);
qp_attr->port_num = (u8)roce_get_field(context->qpc_bytes_156,
QP_CONTEXT_QPC_BYTES_156_PORT_NUM_M,
QP_CONTEXT_QPC_BYTES_156_PORT_NUM_S) + 1;
qp_attr->sq_draining = 0;
qp_attr->max_rd_atomic = roce_get_field(context->qpc_bytes_156,
QP_CONTEXT_QPC_BYTES_156_INITIATOR_DEPTH_M,
QP_CONTEXT_QPC_BYTES_156_INITIATOR_DEPTH_S);
qp_attr->max_dest_rd_atomic = roce_get_field(context->qpc_bytes_32,
QP_CONTEXT_QPC_BYTES_32_RESPONDER_RESOURCES_M,
QP_CONTEXT_QPC_BYTES_32_RESPONDER_RESOURCES_S);
qp_attr->min_rnr_timer = (u8)(roce_get_field(context->qpc_bytes_24,
QP_CONTEXT_QPC_BYTES_24_MINIMUM_RNR_NAK_TIMER_M,
QP_CONTEXT_QPC_BYTES_24_MINIMUM_RNR_NAK_TIMER_S));
qp_attr->timeout = (u8)(roce_get_field(context->qpc_bytes_156,
QP_CONTEXT_QPC_BYTES_156_ACK_TIMEOUT_M,
QP_CONTEXT_QPC_BYTES_156_ACK_TIMEOUT_S));
qp_attr->retry_cnt = roce_get_field(context->qpc_bytes_148,
QP_CONTEXT_QPC_BYTES_148_RETRY_COUNT_M,
QP_CONTEXT_QPC_BYTES_148_RETRY_COUNT_S);
qp_attr->rnr_retry = context->rnr_retry;
done:
qp_attr->cur_qp_state = qp_attr->qp_state;
qp_attr->cap.max_recv_wr = hr_qp->rq.wqe_cnt;
qp_attr->cap.max_recv_sge = hr_qp->rq.max_gs;
if (!ibqp->uobject) {
qp_attr->cap.max_send_wr = hr_qp->sq.wqe_cnt;
qp_attr->cap.max_send_sge = hr_qp->sq.max_gs;
} else {
qp_attr->cap.max_send_wr = 0;
qp_attr->cap.max_send_sge = 0;
}
qp_init_attr->cap = qp_attr->cap;
out:
mutex_unlock(&hr_qp->mutex);
kfree(context);
return ret;
}
static void hns_roce_v1_destroy_qp_common(struct hns_roce_dev *hr_dev,
struct hns_roce_qp *hr_qp,
int is_user)
{
u32 sdbinvcnt;
unsigned long end = 0;
u32 sdbinvcnt_val;
u32 sdbsendptr_val;
u32 sdbisusepr_val;
struct hns_roce_cq *send_cq, *recv_cq;
struct device *dev = &hr_dev->pdev->dev;
if (hr_qp->ibqp.qp_type == IB_QPT_RC) {
if (hr_qp->state != IB_QPS_RESET) {
/*
* Set qp to ERR,
* waiting for hw complete processing all dbs
*/
if (hns_roce_v1_qp_modify(hr_dev, NULL,
to_hns_roce_state(
(enum ib_qp_state)hr_qp->state),
HNS_ROCE_QP_STATE_ERR, NULL,
hr_qp))
dev_err(dev, "modify QP %06lx to ERR failed.\n",
hr_qp->qpn);
/* Record issued doorbell */
sdbisusepr_val = roce_read(hr_dev,
ROCEE_SDB_ISSUE_PTR_REG);
/*
* Query db process status,
* until hw process completely
*/
end = msecs_to_jiffies(
HNS_ROCE_QP_DESTROY_TIMEOUT_MSECS) + jiffies;
do {
sdbsendptr_val = roce_read(hr_dev,
ROCEE_SDB_SEND_PTR_REG);
if (!time_before(jiffies, end)) {
dev_err(dev, "destroy qp(0x%lx) timeout!!!",
hr_qp->qpn);
break;
}
} while ((short)(roce_get_field(sdbsendptr_val,
ROCEE_SDB_SEND_PTR_SDB_SEND_PTR_M,
ROCEE_SDB_SEND_PTR_SDB_SEND_PTR_S) -
roce_get_field(sdbisusepr_val,
ROCEE_SDB_ISSUE_PTR_SDB_ISSUE_PTR_M,
ROCEE_SDB_ISSUE_PTR_SDB_ISSUE_PTR_S)
) < 0);
/* Get list pointer */
sdbinvcnt = roce_read(hr_dev, ROCEE_SDB_INV_CNT_REG);
/* Query db's list status, until hw reversal */
do {
sdbinvcnt_val = roce_read(hr_dev,
ROCEE_SDB_INV_CNT_REG);
if (!time_before(jiffies, end)) {
dev_err(dev, "destroy qp(0x%lx) timeout!!!",
hr_qp->qpn);
dev_err(dev, "SdbInvCnt = 0x%x\n",
sdbinvcnt_val);
break;
}
} while ((short)(roce_get_field(sdbinvcnt_val,
ROCEE_SDB_INV_CNT_SDB_INV_CNT_M,
ROCEE_SDB_INV_CNT_SDB_INV_CNT_S) -
(sdbinvcnt + SDB_INV_CNT_OFFSET)) < 0);
/* Modify qp to reset before destroying qp */
if (hns_roce_v1_qp_modify(hr_dev, NULL,
to_hns_roce_state(
(enum ib_qp_state)hr_qp->state),
HNS_ROCE_QP_STATE_RST, NULL, hr_qp))
dev_err(dev, "modify QP %06lx to RESET failed.\n",
hr_qp->qpn);
}
}
send_cq = to_hr_cq(hr_qp->ibqp.send_cq);
recv_cq = to_hr_cq(hr_qp->ibqp.recv_cq);
hns_roce_lock_cqs(send_cq, recv_cq);
if (!is_user) {
__hns_roce_v1_cq_clean(recv_cq, hr_qp->qpn, hr_qp->ibqp.srq ?
to_hr_srq(hr_qp->ibqp.srq) : NULL);
if (send_cq != recv_cq)
__hns_roce_v1_cq_clean(send_cq, hr_qp->qpn, NULL);
}
hns_roce_qp_remove(hr_dev, hr_qp);
hns_roce_unlock_cqs(send_cq, recv_cq);
hns_roce_qp_free(hr_dev, hr_qp);
/* Not special_QP, free their QPN */
if ((hr_qp->ibqp.qp_type == IB_QPT_RC) ||
(hr_qp->ibqp.qp_type == IB_QPT_UC) ||
(hr_qp->ibqp.qp_type == IB_QPT_UD))
hns_roce_release_range_qp(hr_dev, hr_qp->qpn, 1);
hns_roce_mtt_cleanup(hr_dev, &hr_qp->mtt);
if (is_user) {
ib_umem_release(hr_qp->umem);
} else {
kfree(hr_qp->sq.wrid);
kfree(hr_qp->rq.wrid);
hns_roce_buf_free(hr_dev, hr_qp->buff_size, &hr_qp->hr_buf);
}
}
int hns_roce_v1_destroy_qp(struct ib_qp *ibqp)
{
struct hns_roce_dev *hr_dev = to_hr_dev(ibqp->device);
struct hns_roce_qp *hr_qp = to_hr_qp(ibqp);
hns_roce_v1_destroy_qp_common(hr_dev, hr_qp, !!ibqp->pd->uobject);
if (hr_qp->ibqp.qp_type == IB_QPT_GSI)
kfree(hr_to_hr_sqp(hr_qp));
else
kfree(hr_qp);
return 0;
}
struct hns_roce_v1_priv hr_v1_priv;
struct hns_roce_hw hns_roce_hw_v1 = {
.reset = hns_roce_v1_reset,
.hw_profile = hns_roce_v1_profile,
.hw_init = hns_roce_v1_init,
.hw_exit = hns_roce_v1_exit,
.set_gid = hns_roce_v1_set_gid,
.set_mac = hns_roce_v1_set_mac,
.set_mtu = hns_roce_v1_set_mtu,
.write_mtpt = hns_roce_v1_write_mtpt,
.write_cqc = hns_roce_v1_write_cqc,
.modify_qp = hns_roce_v1_modify_qp,
.query_qp = hns_roce_v1_query_qp,
.destroy_qp = hns_roce_v1_destroy_qp,
.post_send = hns_roce_v1_post_send,
.post_recv = hns_roce_v1_post_recv,
.req_notify_cq = hns_roce_v1_req_notify_cq,
.poll_cq = hns_roce_v1_poll_cq,
.priv = &hr_v1_priv,
};
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