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hns_roce_u_verbs.c
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hns_roce_u_verbs.c
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/*
* Copyright (c) 2016-2017 Hisilicon Limited.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <pthread.h>
#include <sys/mman.h>
#include <ccan/ilog.h>
#include <ccan/minmax.h>
#include "hns_roce_u.h"
#include "hns_roce_u_db.h"
#include "hns_roce_u_hw_v2.h"
void hns_roce_init_qp_indices(struct hns_roce_qp *qp)
{
qp->sq.head = 0;
qp->sq.tail = 0;
qp->rq.head = 0;
qp->rq.tail = 0;
qp->next_sge = 0;
}
int hns_roce_u_query_device(struct ibv_context *context,
const struct ibv_query_device_ex_input *input,
struct ibv_device_attr_ex *attr, size_t attr_size)
{
struct ib_uverbs_ex_query_device_resp resp;
size_t resp_size = sizeof(resp);
int ret;
uint64_t raw_fw_ver;
unsigned int major, minor, sub_minor;
ret = ibv_cmd_query_device_any(context, input, attr, attr_size, &resp,
&resp_size);
if (ret)
return ret;
raw_fw_ver = resp.base.fw_ver;
major = (raw_fw_ver >> 32) & 0xffff;
minor = (raw_fw_ver >> 16) & 0xffff;
sub_minor = raw_fw_ver & 0xffff;
snprintf(attr->orig_attr.fw_ver, sizeof(attr->orig_attr.fw_ver),
"%u.%u.%03u", major, minor, sub_minor);
return 0;
}
int hns_roce_u_query_port(struct ibv_context *context, uint8_t port,
struct ibv_port_attr *attr)
{
struct ibv_query_port cmd;
return ibv_cmd_query_port(context, port, attr, &cmd, sizeof(cmd));
}
struct ibv_pd *hns_roce_u_alloc_pd(struct ibv_context *context)
{
struct ibv_alloc_pd cmd;
struct hns_roce_pd *pd;
struct hns_roce_alloc_pd_resp resp = {};
pd = malloc(sizeof(*pd));
if (!pd)
return NULL;
if (ibv_cmd_alloc_pd(context, &pd->ibv_pd, &cmd, sizeof(cmd),
&resp.ibv_resp, sizeof(resp))) {
free(pd);
return NULL;
}
pd->pdn = resp.pdn;
return &pd->ibv_pd;
}
int hns_roce_u_free_pd(struct ibv_pd *pd)
{
int ret;
ret = ibv_cmd_dealloc_pd(pd);
if (ret)
return ret;
free(to_hr_pd(pd));
return ret;
}
struct ibv_xrcd *hns_roce_u_open_xrcd(struct ibv_context *context,
struct ibv_xrcd_init_attr *xrcd_init_attr)
{
struct ib_uverbs_open_xrcd_resp resp = {};
struct ibv_open_xrcd cmd = {};
struct verbs_xrcd *xrcd;
int ret;
xrcd = calloc(1, sizeof(*xrcd));
if (!xrcd)
return NULL;
ret = ibv_cmd_open_xrcd(context, xrcd, sizeof(*xrcd), xrcd_init_attr,
&cmd, sizeof(cmd), &resp, sizeof(resp));
if (ret) {
free(xrcd);
return NULL;
}
return &xrcd->xrcd;
}
int hns_roce_u_close_xrcd(struct ibv_xrcd *ibv_xrcd)
{
struct verbs_xrcd *xrcd =
container_of(ibv_xrcd, struct verbs_xrcd, xrcd);
int ret;
ret = ibv_cmd_close_xrcd(xrcd);
if (!ret)
free(xrcd);
return ret;
}
struct ibv_mr *hns_roce_u_reg_mr(struct ibv_pd *pd, void *addr, size_t length,
uint64_t hca_va, int access)
{
int ret;
struct verbs_mr *vmr;
struct ibv_reg_mr cmd;
struct ib_uverbs_reg_mr_resp resp;
if (!addr) {
verbs_err(verbs_get_ctx(pd->context),
"2nd parm addr is NULL!\n");
return NULL;
}
if (!length) {
verbs_err(verbs_get_ctx(pd->context),
"3st parm length is 0!\n");
return NULL;
}
vmr = malloc(sizeof(*vmr));
if (!vmr)
return NULL;
ret = ibv_cmd_reg_mr(pd, addr, length, hca_va, access, vmr, &cmd,
sizeof(cmd), &resp, sizeof(resp));
if (ret) {
free(vmr);
return NULL;
}
return &vmr->ibv_mr;
}
int hns_roce_u_rereg_mr(struct verbs_mr *vmr, int flags, struct ibv_pd *pd,
void *addr, size_t length, int access)
{
struct ibv_rereg_mr cmd;
struct ib_uverbs_rereg_mr_resp resp;
return ibv_cmd_rereg_mr(vmr, flags, addr, length, (uintptr_t)addr,
access, pd, &cmd, sizeof(cmd), &resp,
sizeof(resp));
}
int hns_roce_u_dereg_mr(struct verbs_mr *vmr)
{
int ret;
ret = ibv_cmd_dereg_mr(vmr);
if (ret)
return ret;
free(vmr);
return ret;
}
int hns_roce_u_bind_mw(struct ibv_qp *qp, struct ibv_mw *mw,
struct ibv_mw_bind *mw_bind)
{
struct ibv_mw_bind_info *bind_info = &mw_bind->bind_info;
struct ibv_send_wr *bad_wr = NULL;
struct ibv_send_wr wr = {};
int ret;
if (bind_info->mw_access_flags & ~(IBV_ACCESS_REMOTE_WRITE |
IBV_ACCESS_REMOTE_READ | IBV_ACCESS_REMOTE_ATOMIC))
return EINVAL;
wr.opcode = IBV_WR_BIND_MW;
wr.next = NULL;
wr.wr_id = mw_bind->wr_id;
wr.send_flags = mw_bind->send_flags;
wr.bind_mw.mw = mw;
wr.bind_mw.rkey = ibv_inc_rkey(mw->rkey);
wr.bind_mw.bind_info = mw_bind->bind_info;
ret = hns_roce_u_v2_post_send(qp, &wr, &bad_wr);
if (ret)
return ret;
mw->rkey = wr.bind_mw.rkey;
return 0;
}
struct ibv_mw *hns_roce_u_alloc_mw(struct ibv_pd *pd, enum ibv_mw_type type)
{
struct ibv_mw *mw;
struct ibv_alloc_mw cmd = {};
struct ib_uverbs_alloc_mw_resp resp = {};
mw = malloc(sizeof(*mw));
if (!mw)
return NULL;
if (ibv_cmd_alloc_mw(pd, type, mw, &cmd, sizeof(cmd),
&resp, sizeof(resp))) {
free(mw);
return NULL;
}
return mw;
}
int hns_roce_u_dealloc_mw(struct ibv_mw *mw)
{
int ret;
ret = ibv_cmd_dealloc_mw(mw);
if (ret)
return ret;
free(mw);
return 0;
}
enum {
CREATE_CQ_SUPPORTED_WC_FLAGS = IBV_WC_STANDARD_FLAGS |
IBV_WC_EX_WITH_CVLAN,
};
static int verify_cq_create_attr(struct ibv_cq_init_attr_ex *attr,
struct hns_roce_context *context)
{
if (!attr->cqe || attr->cqe > context->max_cqe)
return EINVAL;
if (attr->comp_mask)
return EOPNOTSUPP;
if (!check_comp_mask(attr->wc_flags, CREATE_CQ_SUPPORTED_WC_FLAGS))
return EOPNOTSUPP;
attr->cqe = max_t(uint32_t, HNS_ROCE_MIN_CQE_NUM,
roundup_pow_of_two(attr->cqe));
return 0;
}
static int hns_roce_alloc_cq_buf(struct hns_roce_cq *cq)
{
int buf_size = hr_hw_page_align(cq->cq_depth * cq->cqe_size);
if (hns_roce_alloc_buf(&cq->buf, buf_size, HNS_HW_PAGE_SIZE))
return -ENOMEM;
return 0;
}
static int exec_cq_create_cmd(struct ibv_context *context,
struct hns_roce_cq *cq,
struct ibv_cq_init_attr_ex *attr)
{
struct hns_roce_create_cq_ex_resp resp_ex = {};
struct hns_roce_ib_create_cq_resp *resp_drv;
struct hns_roce_create_cq_ex cmd_ex = {};
struct hns_roce_ib_create_cq *cmd_drv;
int ret;
cmd_drv = &cmd_ex.drv_payload;
resp_drv = &resp_ex.drv_payload;
cmd_drv->buf_addr = (uintptr_t)cq->buf.buf;
cmd_drv->db_addr = (uintptr_t)cq->db;
cmd_drv->cqe_size = (uintptr_t)cq->cqe_size;
ret = ibv_cmd_create_cq_ex(context, attr, &cq->verbs_cq,
&cmd_ex.ibv_cmd, sizeof(cmd_ex),
&resp_ex.ibv_resp, sizeof(resp_ex), 0);
if (ret)
return ret;
cq->cqn = resp_drv->cqn;
cq->flags = resp_drv->cap_flags;
return 0;
}
static struct ibv_cq_ex *create_cq(struct ibv_context *context,
struct ibv_cq_init_attr_ex *attr)
{
struct hns_roce_context *hr_ctx = to_hr_ctx(context);
struct hns_roce_cq *cq;
int ret;
ret = verify_cq_create_attr(attr, hr_ctx);
if (ret)
goto err;
cq = calloc(1, sizeof(*cq));
if (!cq) {
errno = ENOMEM;
goto err;
}
ret = pthread_spin_init(&cq->lock, PTHREAD_PROCESS_PRIVATE);
if (ret)
goto err_lock;
cq->cq_depth = attr->cqe;
cq->cqe_size = hr_ctx->cqe_size;
ret = hns_roce_alloc_cq_buf(cq);
if (ret)
goto err_buf;
cq->db = hns_roce_alloc_db(hr_ctx, HNS_ROCE_CQ_TYPE_DB);
if (!cq->db) {
ret = ENOMEM;
goto err_db;
}
*cq->db = 0;
ret = exec_cq_create_cmd(context, cq, attr);
if (ret)
goto err_cmd;
cq->arm_sn = 1;
return &cq->verbs_cq.cq_ex;
err_cmd:
hns_roce_free_db(hr_ctx, cq->db, HNS_ROCE_CQ_TYPE_DB);
err_db:
hns_roce_free_buf(&cq->buf);
err_lock:
err_buf:
free(cq);
err:
if (ret < 0)
ret = -ret;
errno = ret;
return NULL;
}
struct ibv_cq *hns_roce_u_create_cq(struct ibv_context *context, int cqe,
struct ibv_comp_channel *channel,
int comp_vector)
{
struct ibv_cq_ex *cq;
struct ibv_cq_init_attr_ex attr = {
.cqe = cqe,
.channel = channel,
.comp_vector = comp_vector,
};
cq = create_cq(context, &attr);
return cq ? ibv_cq_ex_to_cq(cq) : NULL;
}
struct ibv_cq_ex *hns_roce_u_create_cq_ex(struct ibv_context *context,
struct ibv_cq_init_attr_ex *attr)
{
struct ibv_cq_ex *cq;
cq = create_cq(context, attr);
if (cq)
hns_roce_attach_cq_ex_ops(cq, attr->wc_flags);
return cq;
}
void hns_roce_u_cq_event(struct ibv_cq *cq)
{
to_hr_cq(cq)->arm_sn++;
}
int hns_roce_u_modify_cq(struct ibv_cq *cq, struct ibv_modify_cq_attr *attr)
{
struct ibv_modify_cq cmd = {};
return ibv_cmd_modify_cq(cq, attr, &cmd, sizeof(cmd));
}
int hns_roce_u_destroy_cq(struct ibv_cq *cq)
{
int ret;
ret = ibv_cmd_destroy_cq(cq);
if (ret)
return ret;
hns_roce_free_db(to_hr_ctx(cq->context), to_hr_cq(cq)->db,
HNS_ROCE_CQ_TYPE_DB);
hns_roce_free_buf(&to_hr_cq(cq)->buf);
free(to_hr_cq(cq));
return ret;
}
static int hns_roce_store_srq(struct hns_roce_context *ctx,
struct hns_roce_srq *srq)
{
uint32_t tind = to_hr_srq_table_index(srq->srqn, ctx);
pthread_mutex_lock(&ctx->srq_table_mutex);
if (!ctx->srq_table[tind].refcnt) {
ctx->srq_table[tind].table =
calloc(ctx->srq_table_mask + 1,
sizeof(struct hns_roce_srq *));
if (!ctx->srq_table[tind].table) {
pthread_mutex_unlock(&ctx->srq_table_mutex);
return -ENOMEM;
}
}
++ctx->srq_table[tind].refcnt;
ctx->srq_table[tind].table[srq->srqn & ctx->srq_table_mask] = srq;
pthread_mutex_unlock(&ctx->srq_table_mutex);
return 0;
}
struct hns_roce_srq *hns_roce_find_srq(struct hns_roce_context *ctx,
uint32_t srqn)
{
uint32_t tind = to_hr_srq_table_index(srqn, ctx);
if (ctx->srq_table[tind].refcnt)
return ctx->srq_table[tind].table[srqn & ctx->srq_table_mask];
else
return NULL;
}
static void hns_roce_clear_srq(struct hns_roce_context *ctx, uint32_t srqn)
{
uint32_t tind = to_hr_srq_table_index(srqn, ctx);
pthread_mutex_lock(&ctx->srq_table_mutex);
if (!--ctx->srq_table[tind].refcnt)
free(ctx->srq_table[tind].table);
else
ctx->srq_table[tind].table[srqn & ctx->srq_table_mask] = NULL;
pthread_mutex_unlock(&ctx->srq_table_mutex);
}
static int verify_srq_create_attr(struct hns_roce_context *context,
struct ibv_srq_init_attr_ex *attr)
{
if (attr->srq_type != IBV_SRQT_BASIC &&
attr->srq_type != IBV_SRQT_XRC)
return -EINVAL;
if (!attr->attr.max_sge ||
attr->attr.max_wr > context->max_srq_wr ||
attr->attr.max_sge > context->max_srq_sge)
return -EINVAL;
attr->attr.max_wr = max_t(uint32_t, attr->attr.max_wr,
HNS_ROCE_MIN_SRQ_WQE_NUM);
return 0;
}
static void set_srq_param(struct ibv_context *context, struct hns_roce_srq *srq,
struct ibv_srq_init_attr_ex *attr)
{
struct hns_roce_context *ctx = to_hr_ctx(context);
if (to_hr_dev(context->device)->hw_version == HNS_ROCE_HW_VER2)
srq->rsv_sge = 1;
srq->wqe_cnt = roundup_pow_of_two(attr->attr.max_wr);
srq->max_gs = roundup_pow_of_two(attr->attr.max_sge + srq->rsv_sge);
srq->wqe_shift = hr_ilog32(roundup_pow_of_two(HNS_ROCE_SGE_SIZE *
srq->max_gs));
attr->attr.max_sge = srq->max_gs;
attr->attr.srq_limit = 0;
srq->srq_rinl_buf.wqe_cnt = 0;
if (ctx->config & HNS_ROCE_RSP_CQE_INLINE_FLAGS)
srq->srq_rinl_buf.wqe_cnt = srq->wqe_cnt;
}
static int alloc_srq_idx_que(struct hns_roce_srq *srq)
{
struct hns_roce_idx_que *idx_que = &srq->idx_que;
unsigned int buf_size;
int i;
idx_que->entry_shift = hr_ilog32(HNS_ROCE_IDX_QUE_ENTRY_SZ);
idx_que->bitmap_cnt = align(srq->wqe_cnt, BIT_CNT_PER_LONG) /
BIT_CNT_PER_LONG;
idx_que->bitmap = calloc(idx_que->bitmap_cnt, sizeof(unsigned long));
if (!idx_que->bitmap)
return -ENOMEM;
buf_size = to_hr_hem_entries_size(srq->wqe_cnt, idx_que->entry_shift);
if (hns_roce_alloc_buf(&idx_que->buf, buf_size, HNS_HW_PAGE_SIZE)) {
free(idx_que->bitmap);
idx_que->bitmap = NULL;
return -ENOMEM;
}
/* init the idx_que bitmap */
for (i = 0; i < idx_que->bitmap_cnt; ++i)
idx_que->bitmap[i] = ~(0UL);
idx_que->head = 0;
idx_que->tail = 0;
return 0;
}
static int alloc_srq_wqe_buf(struct hns_roce_srq *srq)
{
int buf_size = to_hr_hem_entries_size(srq->wqe_cnt, srq->wqe_shift);
return hns_roce_alloc_buf(&srq->wqe_buf, buf_size, HNS_HW_PAGE_SIZE);
}
static int alloc_recv_rinl_buf(uint32_t max_sge,
struct hns_roce_rinl_buf *rinl_buf);
static void free_recv_rinl_buf(struct hns_roce_rinl_buf *rinl_buf);
static int alloc_srq_buf(struct hns_roce_srq *srq)
{
int ret;
ret = alloc_srq_idx_que(srq);
if (ret)
return ret;
ret = alloc_srq_wqe_buf(srq);
if (ret)
goto err_idx_que;
if (srq->srq_rinl_buf.wqe_cnt) {
ret = alloc_recv_rinl_buf(srq->max_gs, &srq->srq_rinl_buf);
if (ret)
goto err_wqe_buf;
}
srq->wrid = calloc(srq->wqe_cnt, sizeof(*srq->wrid));
if (!srq->wrid) {
ret = -ENOMEM;
goto err_inl_buf;
}
return 0;
err_inl_buf:
free_recv_rinl_buf(&srq->srq_rinl_buf);
err_wqe_buf:
hns_roce_free_buf(&srq->wqe_buf);
err_idx_que:
hns_roce_free_buf(&srq->idx_que.buf);
free(srq->idx_que.bitmap);
return ret;
}
static void free_srq_buf(struct hns_roce_srq *srq)
{
free(srq->wrid);
hns_roce_free_buf(&srq->wqe_buf);
free_recv_rinl_buf(&srq->srq_rinl_buf);
hns_roce_free_buf(&srq->idx_que.buf);
free(srq->idx_que.bitmap);
}
static int exec_srq_create_cmd(struct ibv_context *context,
struct hns_roce_srq *srq,
struct ibv_srq_init_attr_ex *init_attr)
{
struct hns_roce_create_srq_ex_resp resp_ex = {};
struct hns_roce_create_srq_ex cmd_ex = {};
int ret;
cmd_ex.buf_addr = (uintptr_t)srq->wqe_buf.buf;
cmd_ex.que_addr = (uintptr_t)srq->idx_que.buf.buf;
cmd_ex.db_addr = (uintptr_t)srq->rdb;
cmd_ex.req_cap_flags |= HNS_ROCE_SRQ_CAP_RECORD_DB;
ret = ibv_cmd_create_srq_ex(context, &srq->verbs_srq, init_attr,
&cmd_ex.ibv_cmd, sizeof(cmd_ex),
&resp_ex.ibv_resp, sizeof(resp_ex));
if (ret)
return ret;
srq->srqn = resp_ex.srqn;
srq->cap_flags = resp_ex.cap_flags;
return 0;
}
static struct ibv_srq *create_srq(struct ibv_context *context,
struct ibv_srq_init_attr_ex *init_attr)
{
struct hns_roce_context *hr_ctx = to_hr_ctx(context);
struct hns_roce_srq *srq;
int ret;
ret = verify_srq_create_attr(hr_ctx, init_attr);
if (ret)
goto err;
srq = calloc(1, sizeof(*srq));
if (!srq) {
ret = -ENOMEM;
goto err;
}
if (pthread_spin_init(&srq->lock, PTHREAD_PROCESS_PRIVATE))
goto err_free_srq;
set_srq_param(context, srq, init_attr);
if (alloc_srq_buf(srq))
goto err_free_srq;
srq->rdb = hns_roce_alloc_db(hr_ctx, HNS_ROCE_SRQ_TYPE_DB);
if (!srq->rdb)
goto err_srq_buf;
*srq->rdb = 0;
ret = exec_srq_create_cmd(context, srq, init_attr);
if (ret)
goto err_srq_db;
ret = hns_roce_store_srq(hr_ctx, srq);
if (ret)
goto err_destroy_srq;
srq->max_gs = init_attr->attr.max_sge;
init_attr->attr.max_sge =
min(init_attr->attr.max_sge - srq->rsv_sge, hr_ctx->max_srq_sge);
return &srq->verbs_srq.srq;
err_destroy_srq:
ibv_cmd_destroy_srq(&srq->verbs_srq.srq);
err_srq_db:
hns_roce_free_db(hr_ctx, srq->rdb, HNS_ROCE_SRQ_TYPE_DB);
err_srq_buf:
free_srq_buf(srq);
err_free_srq:
free(srq);
err:
if (ret < 0)
ret = -ret;
errno = ret;
return NULL;
}
struct ibv_srq *hns_roce_u_create_srq(struct ibv_pd *pd,
struct ibv_srq_init_attr *attr)
{
struct ibv_srq_init_attr_ex attrx = {};
struct ibv_srq *srq;
memcpy(&attrx, attr, sizeof(*attr));
attrx.comp_mask = IBV_SRQ_INIT_ATTR_PD;
attrx.pd = pd;
srq = create_srq(pd->context, &attrx);
if (srq)
memcpy(attr, &attrx, sizeof(*attr));
return srq;
}
struct ibv_srq *hns_roce_u_create_srq_ex(struct ibv_context *context,
struct ibv_srq_init_attr_ex *attr)
{
return create_srq(context, attr);
}
int hns_roce_u_get_srq_num(struct ibv_srq *ibv_srq, uint32_t *srq_num)
{
*srq_num = to_hr_srq(ibv_srq)->srqn;
return 0;
}
int hns_roce_u_modify_srq(struct ibv_srq *srq, struct ibv_srq_attr *srq_attr,
int srq_attr_mask)
{
struct ibv_modify_srq cmd;
return ibv_cmd_modify_srq(srq, srq_attr, srq_attr_mask, &cmd,
sizeof(cmd));
}
int hns_roce_u_query_srq(struct ibv_srq *srq, struct ibv_srq_attr *srq_attr)
{
struct ibv_query_srq cmd;
int ret;
ret = ibv_cmd_query_srq(srq, srq_attr, &cmd, sizeof(cmd));
srq_attr->max_sge -= to_hr_srq(srq)->rsv_sge;
return ret;
}
int hns_roce_u_destroy_srq(struct ibv_srq *ibv_srq)
{
struct hns_roce_context *ctx = to_hr_ctx(ibv_srq->context);
struct hns_roce_srq *srq = to_hr_srq(ibv_srq);
int ret;
ret = ibv_cmd_destroy_srq(ibv_srq);
if (ret)
return ret;
hns_roce_clear_srq(ctx, srq->srqn);
hns_roce_free_db(ctx, srq->rdb, HNS_ROCE_SRQ_TYPE_DB);
free_srq_buf(srq);
free(srq);
return 0;
}
enum {
CREATE_QP_SUP_COMP_MASK = IBV_QP_INIT_ATTR_PD | IBV_QP_INIT_ATTR_XRCD |
IBV_QP_INIT_ATTR_SEND_OPS_FLAGS,
};
static int check_qp_create_mask(struct hns_roce_context *ctx,
struct ibv_qp_init_attr_ex *attr)
{
struct hns_roce_device *hr_dev = to_hr_dev(ctx->ibv_ctx.context.device);
if (!check_comp_mask(attr->comp_mask, CREATE_QP_SUP_COMP_MASK))
return EOPNOTSUPP;
switch (attr->qp_type) {
case IBV_QPT_UD:
if (hr_dev->hw_version == HNS_ROCE_HW_VER2)
return EINVAL;
SWITCH_FALLTHROUGH;
case IBV_QPT_RC:
case IBV_QPT_XRC_SEND:
if (!(attr->comp_mask & IBV_QP_INIT_ATTR_PD))
return EINVAL;
break;
case IBV_QPT_XRC_RECV:
if (!(attr->comp_mask & IBV_QP_INIT_ATTR_XRCD))
return EINVAL;
break;
default:
return EOPNOTSUPP;
}
return 0;
}
static int hns_roce_qp_has_rq(struct ibv_qp_init_attr_ex *attr)
{
if (attr->qp_type == IBV_QPT_XRC_SEND ||
attr->qp_type == IBV_QPT_XRC_RECV || attr->srq)
return 0;
return 1;
}
static int verify_qp_create_cap(struct hns_roce_context *ctx,
struct ibv_qp_init_attr_ex *attr)
{
struct ibv_qp_cap *cap = &attr->cap;
uint32_t min_wqe_num;
int has_rq;
if (!cap->max_send_wr && attr->qp_type != IBV_QPT_XRC_RECV)
return -EINVAL;
if (cap->max_send_wr > ctx->max_qp_wr ||
cap->max_recv_wr > ctx->max_qp_wr ||
cap->max_send_sge > ctx->max_sge ||
cap->max_recv_sge > ctx->max_sge)
return -EINVAL;
has_rq = hns_roce_qp_has_rq(attr);
if (!has_rq) {
cap->max_recv_wr = 0;
cap->max_recv_sge = 0;
}
min_wqe_num = HNS_ROCE_V2_MIN_WQE_NUM;
if (cap->max_send_wr < min_wqe_num)
cap->max_send_wr = min_wqe_num;
if (cap->max_recv_wr) {
if (cap->max_recv_wr < min_wqe_num)
cap->max_recv_wr = min_wqe_num;
if (!cap->max_recv_sge)
return -EINVAL;
}
return 0;
}
static int verify_qp_create_attr(struct hns_roce_context *ctx,
struct ibv_qp_init_attr_ex *attr)
{
int ret;
ret = check_qp_create_mask(ctx, attr);
if (ret)
return ret;
return verify_qp_create_cap(ctx, attr);
}
static int alloc_recv_rinl_buf(uint32_t max_sge,
struct hns_roce_rinl_buf *rinl_buf)
{
unsigned int cnt;
int i;
cnt = rinl_buf->wqe_cnt;
rinl_buf->wqe_list = calloc(cnt, sizeof(struct hns_roce_rinl_wqe));
if (!rinl_buf->wqe_list)
return ENOMEM;
rinl_buf->wqe_list[0].sg_list = calloc(cnt * max_sge,
sizeof(struct ibv_sge));
if (!rinl_buf->wqe_list[0].sg_list) {
free(rinl_buf->wqe_list);
return ENOMEM;
}
for (i = 0; i < cnt; i++) {
int wqe_size = i * max_sge;
rinl_buf->wqe_list[i].sg_list =
&rinl_buf->wqe_list[0].sg_list[wqe_size];
}
return 0;
}
static void free_recv_rinl_buf(struct hns_roce_rinl_buf *rinl_buf)
{
if (rinl_buf->wqe_list) {
if (rinl_buf->wqe_list[0].sg_list) {
free(rinl_buf->wqe_list[0].sg_list);
rinl_buf->wqe_list[0].sg_list = NULL;
}
free(rinl_buf->wqe_list);
rinl_buf->wqe_list = NULL;
}
}
static int calc_qp_buff_size(struct hns_roce_device *hr_dev,
struct hns_roce_qp *qp)
{
struct hns_roce_wq *sq = &qp->sq;
struct hns_roce_wq *rq = &qp->rq;
unsigned int size;
qp->buf_size = 0;
/* SQ WQE */
sq->offset = 0;
size = to_hr_hem_entries_size(sq->wqe_cnt, sq->wqe_shift);
qp->buf_size += size;
/* extend SGE WQE in SQ */
qp->ex_sge.offset = qp->buf_size;
if (qp->ex_sge.sge_cnt > 0) {
size = to_hr_hem_entries_size(qp->ex_sge.sge_cnt,
qp->ex_sge.sge_shift);
qp->buf_size += size;
}
/* RQ WQE */
rq->offset = qp->buf_size;
size = to_hr_hem_entries_size(rq->wqe_cnt, rq->wqe_shift);
qp->buf_size += size;
if (qp->buf_size < 1)
return EINVAL;
return 0;
}
static void qp_free_wqe(struct hns_roce_qp *qp)
{
free_recv_rinl_buf(&qp->rq_rinl_buf);
if (qp->sq.wqe_cnt)
free(qp->sq.wrid);
if (qp->rq.wqe_cnt)
free(qp->rq.wrid);
hns_roce_free_buf(&qp->buf);
}
static int qp_alloc_wqe(struct ibv_qp_cap *cap, struct hns_roce_qp *qp,
struct hns_roce_context *ctx)
{
struct hns_roce_device *hr_dev = to_hr_dev(ctx->ibv_ctx.context.device);
if (calc_qp_buff_size(hr_dev, qp))
return -EINVAL;
qp->sq.wrid = malloc(qp->sq.wqe_cnt * sizeof(uint64_t));
if (!qp->sq.wrid)
return -ENOMEM;
if (qp->rq.wqe_cnt) {
qp->rq.wrid = malloc(qp->rq.wqe_cnt * sizeof(uint64_t));
if (!qp->rq.wrid)
goto err_alloc;
}
if (qp->rq_rinl_buf.wqe_cnt) {
if (alloc_recv_rinl_buf(cap->max_recv_sge, &qp->rq_rinl_buf))
goto err_alloc;
}
if (hns_roce_alloc_buf(&qp->buf, qp->buf_size, HNS_HW_PAGE_SIZE))
goto err_alloc;
return 0;
err_alloc:
free_recv_rinl_buf(&qp->rq_rinl_buf);
if (qp->rq.wrid)
free(qp->rq.wrid);
if (qp->sq.wrid)
free(qp->sq.wrid);