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cmd.c
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/*
* Copyright (c) 2005 Topspin Communications. All rights reserved.
* Copyright (c) 2005 PathScale, Inc. All rights reserved.
* Copyright (c) 2006 Cisco Systems, Inc. All rights reserved.
*
* 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 <config.h>
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <errno.h>
#include <alloca.h>
#include <string.h>
#include <infiniband/cmd_write.h>
#include "ibverbs.h"
#include <ccan/minmax.h>
bool verbs_allow_disassociate_destroy;
int ibv_cmd_get_context(struct verbs_context *context_ex,
struct ibv_get_context *cmd, size_t cmd_size,
struct ib_uverbs_get_context_resp *resp, size_t resp_size)
{
int ret;
ret = execute_cmd_write(&context_ex->context,
IB_USER_VERBS_CMD_GET_CONTEXT, cmd, cmd_size,
resp, resp_size);
if (ret)
return ret;
context_ex->context.async_fd = resp->async_fd;
context_ex->context.num_comp_vectors = resp->num_comp_vectors;
return 0;
}
static void copy_query_dev_fields(struct ibv_device_attr *device_attr,
struct ib_uverbs_query_device_resp *resp,
uint64_t *raw_fw_ver)
{
*raw_fw_ver = resp->fw_ver;
device_attr->node_guid = resp->node_guid;
device_attr->sys_image_guid = resp->sys_image_guid;
device_attr->max_mr_size = resp->max_mr_size;
device_attr->page_size_cap = resp->page_size_cap;
device_attr->vendor_id = resp->vendor_id;
device_attr->vendor_part_id = resp->vendor_part_id;
device_attr->hw_ver = resp->hw_ver;
device_attr->max_qp = resp->max_qp;
device_attr->max_qp_wr = resp->max_qp_wr;
device_attr->device_cap_flags = resp->device_cap_flags;
device_attr->max_sge = resp->max_sge;
device_attr->max_sge_rd = resp->max_sge_rd;
device_attr->max_cq = resp->max_cq;
device_attr->max_cqe = resp->max_cqe;
device_attr->max_mr = resp->max_mr;
device_attr->max_pd = resp->max_pd;
device_attr->max_qp_rd_atom = resp->max_qp_rd_atom;
device_attr->max_ee_rd_atom = resp->max_ee_rd_atom;
device_attr->max_res_rd_atom = resp->max_res_rd_atom;
device_attr->max_qp_init_rd_atom = resp->max_qp_init_rd_atom;
device_attr->max_ee_init_rd_atom = resp->max_ee_init_rd_atom;
device_attr->atomic_cap = resp->atomic_cap;
device_attr->max_ee = resp->max_ee;
device_attr->max_rdd = resp->max_rdd;
device_attr->max_mw = resp->max_mw;
device_attr->max_raw_ipv6_qp = resp->max_raw_ipv6_qp;
device_attr->max_raw_ethy_qp = resp->max_raw_ethy_qp;
device_attr->max_mcast_grp = resp->max_mcast_grp;
device_attr->max_mcast_qp_attach = resp->max_mcast_qp_attach;
device_attr->max_total_mcast_qp_attach = resp->max_total_mcast_qp_attach;
device_attr->max_ah = resp->max_ah;
device_attr->max_fmr = resp->max_fmr;
device_attr->max_map_per_fmr = resp->max_map_per_fmr;
device_attr->max_srq = resp->max_srq;
device_attr->max_srq_wr = resp->max_srq_wr;
device_attr->max_srq_sge = resp->max_srq_sge;
device_attr->max_pkeys = resp->max_pkeys;
device_attr->local_ca_ack_delay = resp->local_ca_ack_delay;
device_attr->phys_port_cnt = resp->phys_port_cnt;
}
int ibv_cmd_query_device(struct ibv_context *context,
struct ibv_device_attr *device_attr,
uint64_t *raw_fw_ver,
struct ibv_query_device *cmd, size_t cmd_size)
{
struct ib_uverbs_query_device_resp resp;
int ret;
ret = execute_cmd_write(context, IB_USER_VERBS_CMD_QUERY_DEVICE, cmd,
cmd_size, &resp, sizeof(resp));
if (ret)
return ret;
memset(device_attr->fw_ver, 0, sizeof device_attr->fw_ver);
copy_query_dev_fields(device_attr, &resp, raw_fw_ver);
return 0;
}
int ibv_cmd_query_device_ex(struct ibv_context *context,
const struct ibv_query_device_ex_input *input,
struct ibv_device_attr_ex *attr, size_t attr_size,
uint64_t *raw_fw_ver,
struct ibv_query_device_ex *cmd,
size_t cmd_size,
struct ib_uverbs_ex_query_device_resp *resp,
size_t resp_size)
{
int err;
if (input && input->comp_mask)
return EINVAL;
if (attr_size < offsetof(struct ibv_device_attr_ex, comp_mask) +
sizeof(attr->comp_mask))
return EINVAL;
cmd->comp_mask = 0;
cmd->reserved = 0;
memset(attr->orig_attr.fw_ver, 0, sizeof(attr->orig_attr.fw_ver));
memset(&attr->comp_mask, 0, attr_size - sizeof(attr->orig_attr));
err = execute_cmd_write_ex(context, IB_USER_VERBS_EX_CMD_QUERY_DEVICE,
cmd, cmd_size, resp, resp_size);
if (err)
return err;
copy_query_dev_fields(&attr->orig_attr, &resp->base, raw_fw_ver);
/* Report back supported comp_mask bits. For now no comp_mask bit is
* defined */
attr->comp_mask = resp->comp_mask & 0;
if (attr_size >= offsetof(struct ibv_device_attr_ex, odp_caps) +
sizeof(attr->odp_caps)) {
if (resp->response_length >=
offsetof(struct ib_uverbs_ex_query_device_resp, odp_caps) +
sizeof(resp->odp_caps)) {
attr->odp_caps.general_caps = resp->odp_caps.general_caps;
attr->odp_caps.per_transport_caps.rc_odp_caps =
resp->odp_caps.per_transport_caps.rc_odp_caps;
attr->odp_caps.per_transport_caps.uc_odp_caps =
resp->odp_caps.per_transport_caps.uc_odp_caps;
attr->odp_caps.per_transport_caps.ud_odp_caps =
resp->odp_caps.per_transport_caps.ud_odp_caps;
}
}
if (attr_size >= offsetof(struct ibv_device_attr_ex,
completion_timestamp_mask) +
sizeof(attr->completion_timestamp_mask)) {
if (resp->response_length >=
offsetof(struct ib_uverbs_ex_query_device_resp, timestamp_mask) +
sizeof(resp->timestamp_mask))
attr->completion_timestamp_mask = resp->timestamp_mask;
}
if (attr_size >= offsetof(struct ibv_device_attr_ex, hca_core_clock) +
sizeof(attr->hca_core_clock)) {
if (resp->response_length >=
offsetof(struct ib_uverbs_ex_query_device_resp, hca_core_clock) +
sizeof(resp->hca_core_clock))
attr->hca_core_clock = resp->hca_core_clock;
}
if (attr_size >= offsetof(struct ibv_device_attr_ex, device_cap_flags_ex) +
sizeof(attr->device_cap_flags_ex)) {
if (resp->response_length >=
offsetof(struct ib_uverbs_ex_query_device_resp, device_cap_flags_ex) +
sizeof(resp->device_cap_flags_ex))
attr->device_cap_flags_ex = resp->device_cap_flags_ex;
}
if (attr_size >= offsetof(struct ibv_device_attr_ex, rss_caps) +
sizeof(attr->rss_caps)) {
if (resp->response_length >=
offsetof(struct ib_uverbs_ex_query_device_resp, rss_caps) +
sizeof(resp->rss_caps)) {
attr->rss_caps.supported_qpts = resp->rss_caps.supported_qpts;
attr->rss_caps.max_rwq_indirection_tables = resp->rss_caps.max_rwq_indirection_tables;
attr->rss_caps.max_rwq_indirection_table_size = resp->rss_caps.max_rwq_indirection_table_size;
}
}
if (attr_size >= offsetof(struct ibv_device_attr_ex, max_wq_type_rq) +
sizeof(attr->max_wq_type_rq)) {
if (resp->response_length >=
offsetof(struct ib_uverbs_ex_query_device_resp, max_wq_type_rq) +
sizeof(resp->max_wq_type_rq))
attr->max_wq_type_rq = resp->max_wq_type_rq;
}
if (attr_size >= offsetof(struct ibv_device_attr_ex, raw_packet_caps) +
sizeof(attr->raw_packet_caps)) {
if (resp->response_length >=
offsetof(struct ib_uverbs_ex_query_device_resp, raw_packet_caps) +
sizeof(resp->raw_packet_caps))
attr->raw_packet_caps = resp->raw_packet_caps;
}
if (attr_size >= offsetof(struct ibv_device_attr_ex, tm_caps) +
sizeof(attr->tm_caps)) {
if (resp->response_length >=
offsetof(struct ib_uverbs_ex_query_device_resp, tm_caps) +
sizeof(resp->tm_caps)) {
attr->tm_caps.max_rndv_hdr_size =
resp->tm_caps.max_rndv_hdr_size;
attr->tm_caps.max_num_tags =
resp->tm_caps.max_num_tags;
attr->tm_caps.flags = resp->tm_caps.flags;
attr->tm_caps.max_ops =
resp->tm_caps.max_ops;
attr->tm_caps.max_sge =
resp->tm_caps.max_sge;
}
}
if (attr_size >= offsetof(struct ibv_device_attr_ex, cq_mod_caps) +
sizeof(attr->cq_mod_caps)) {
if (resp->response_length >=
offsetof(struct ib_uverbs_ex_query_device_resp, cq_moderation_caps) +
sizeof(resp->cq_moderation_caps)) {
attr->cq_mod_caps.max_cq_count = resp->cq_moderation_caps.max_cq_moderation_count;
attr->cq_mod_caps.max_cq_period = resp->cq_moderation_caps.max_cq_moderation_period;
}
}
if (attr_size >= offsetof(struct ibv_device_attr_ex, max_dm_size) +
sizeof(attr->max_dm_size)) {
if (resp->response_length >=
offsetof(struct ib_uverbs_ex_query_device_resp, max_dm_size) +
sizeof(resp->max_dm_size)) {
attr->max_dm_size = resp->max_dm_size;
}
}
return 0;
}
int ibv_cmd_alloc_pd(struct ibv_context *context, struct ibv_pd *pd,
struct ibv_alloc_pd *cmd, size_t cmd_size,
struct ib_uverbs_alloc_pd_resp *resp, size_t resp_size)
{
int ret;
ret = execute_cmd_write(context, IB_USER_VERBS_CMD_ALLOC_PD, cmd,
cmd_size, resp, resp_size);
if (ret)
return ret;
pd->handle = resp->pd_handle;
pd->context = context;
return 0;
}
int ibv_cmd_open_xrcd(struct ibv_context *context, struct verbs_xrcd *xrcd,
int vxrcd_size,
struct ibv_xrcd_init_attr *attr,
struct ibv_open_xrcd *cmd, size_t cmd_size,
struct ib_uverbs_open_xrcd_resp *resp, size_t resp_size)
{
int ret;
if (attr->comp_mask >= IBV_XRCD_INIT_ATTR_RESERVED)
return ENOSYS;
if (!(attr->comp_mask & IBV_XRCD_INIT_ATTR_FD) ||
!(attr->comp_mask & IBV_XRCD_INIT_ATTR_OFLAGS))
return EINVAL;
cmd->fd = attr->fd;
cmd->oflags = attr->oflags;
ret = execute_cmd_write(context, IB_USER_VERBS_CMD_OPEN_XRCD, cmd,
cmd_size, resp, resp_size);
if (ret)
return ret;
xrcd->xrcd.context = context;
xrcd->comp_mask = 0;
if (vext_field_avail(struct verbs_xrcd, handle, vxrcd_size)) {
xrcd->comp_mask = VERBS_XRCD_HANDLE;
xrcd->handle = resp->xrcd_handle;
}
return 0;
}
int ibv_cmd_reg_mr(struct ibv_pd *pd, void *addr, size_t length,
uint64_t hca_va, int access,
struct verbs_mr *vmr, struct ibv_reg_mr *cmd,
size_t cmd_size,
struct ib_uverbs_reg_mr_resp *resp, size_t resp_size)
{
int ret;
cmd->start = (uintptr_t) addr;
cmd->length = length;
cmd->hca_va = hca_va;
cmd->pd_handle = pd->handle;
cmd->access_flags = access;
ret = execute_cmd_write(pd->context, IB_USER_VERBS_CMD_REG_MR, cmd,
cmd_size, resp, resp_size);
if (ret)
return ret;
vmr->ibv_mr.handle = resp->mr_handle;
vmr->ibv_mr.lkey = resp->lkey;
vmr->ibv_mr.rkey = resp->rkey;
vmr->ibv_mr.context = pd->context;
vmr->mr_type = IBV_MR_TYPE_MR;
return 0;
}
int ibv_cmd_rereg_mr(struct verbs_mr *vmr, uint32_t flags, void *addr,
size_t length, uint64_t hca_va, int access,
struct ibv_pd *pd, struct ibv_rereg_mr *cmd,
size_t cmd_sz, struct ib_uverbs_rereg_mr_resp *resp,
size_t resp_sz)
{
int ret;
cmd->mr_handle = vmr->ibv_mr.handle;
cmd->flags = flags;
cmd->start = (uintptr_t)addr;
cmd->length = length;
cmd->hca_va = hca_va;
cmd->pd_handle = (flags & IBV_REREG_MR_CHANGE_PD) ? pd->handle : 0;
cmd->access_flags = access;
ret = execute_cmd_write(vmr->ibv_mr.context, IB_USER_VERBS_CMD_REREG_MR,
cmd, cmd_sz, resp, resp_sz);
if (ret)
return ret;
vmr->ibv_mr.lkey = resp->lkey;
vmr->ibv_mr.rkey = resp->rkey;
if (flags & IBV_REREG_MR_CHANGE_PD)
vmr->ibv_mr.context = pd->context;
return 0;
}
int ibv_cmd_alloc_mw(struct ibv_pd *pd, enum ibv_mw_type type,
struct ibv_mw *mw, struct ibv_alloc_mw *cmd,
size_t cmd_size,
struct ib_uverbs_alloc_mw_resp *resp, size_t resp_size)
{
int ret;
cmd->pd_handle = pd->handle;
cmd->mw_type = type;
memset(cmd->reserved, 0, sizeof(cmd->reserved));
ret = execute_cmd_write(pd->context, IB_USER_VERBS_CMD_ALLOC_MW, cmd,
cmd_size, resp, resp_size);
if (ret)
return ret;
mw->context = pd->context;
mw->pd = pd;
mw->rkey = resp->rkey;
mw->handle = resp->mw_handle;
mw->type = type;
return 0;
}
int ibv_cmd_poll_cq(struct ibv_cq *ibcq, int ne, struct ibv_wc *wc)
{
struct ibv_poll_cq cmd;
struct ib_uverbs_poll_cq_resp *resp;
int i;
int rsize;
int ret;
rsize = sizeof *resp + ne * sizeof(struct ib_uverbs_wc);
resp = malloc(rsize);
if (!resp)
return -1;
cmd.cq_handle = ibcq->handle;
cmd.ne = ne;
ret = execute_cmd_write_no_uhw(ibcq->context, IB_USER_VERBS_CMD_POLL_CQ,
&cmd, sizeof(cmd), resp, rsize);
if (ret) {
ret = -1;
goto out;
}
for (i = 0; i < resp->count; i++) {
wc[i].wr_id = resp->wc[i].wr_id;
wc[i].status = resp->wc[i].status;
wc[i].opcode = resp->wc[i].opcode;
wc[i].vendor_err = resp->wc[i].vendor_err;
wc[i].byte_len = resp->wc[i].byte_len;
wc[i].imm_data = resp->wc[i].ex.imm_data;
wc[i].qp_num = resp->wc[i].qp_num;
wc[i].src_qp = resp->wc[i].src_qp;
wc[i].wc_flags = resp->wc[i].wc_flags;
wc[i].pkey_index = resp->wc[i].pkey_index;
wc[i].slid = resp->wc[i].slid;
wc[i].sl = resp->wc[i].sl;
wc[i].dlid_path_bits = resp->wc[i].dlid_path_bits;
}
ret = resp->count;
out:
free(resp);
return ret;
}
int ibv_cmd_req_notify_cq(struct ibv_cq *ibcq, int solicited_only)
{
struct ibv_req_notify_cq req;
req.core_payload = (struct ib_uverbs_req_notify_cq){
.cq_handle = ibcq->handle,
.solicited_only = !!solicited_only,
};
return execute_cmd_write_req(ibcq->context,
IB_USER_VERBS_CMD_REQ_NOTIFY_CQ, &req,
sizeof(req));
}
int ibv_cmd_resize_cq(struct ibv_cq *cq, int cqe,
struct ibv_resize_cq *cmd, size_t cmd_size,
struct ib_uverbs_resize_cq_resp *resp, size_t resp_size)
{
int ret;
cmd->cq_handle = cq->handle;
cmd->cqe = cqe;
ret = execute_cmd_write(cq->context, IB_USER_VERBS_CMD_RESIZE_CQ, cmd,
cmd_size, resp, resp_size);
if (ret)
return ret;
cq->cqe = resp->cqe;
return 0;
}
int ibv_cmd_create_srq(struct ibv_pd *pd,
struct ibv_srq *srq, struct ibv_srq_init_attr *attr,
struct ibv_create_srq *cmd, size_t cmd_size,
struct ib_uverbs_create_srq_resp *resp, size_t resp_size)
{
int ret;
cmd->user_handle = (uintptr_t) srq;
cmd->pd_handle = pd->handle;
cmd->max_wr = attr->attr.max_wr;
cmd->max_sge = attr->attr.max_sge;
cmd->srq_limit = attr->attr.srq_limit;
ret = execute_cmd_write(pd->context, IB_USER_VERBS_CMD_CREATE_SRQ, cmd,
cmd_size, resp, resp_size);
if (ret)
return ret;
srq->handle = resp->srq_handle;
srq->context = pd->context;
if (abi_ver > 5) {
attr->attr.max_wr = resp->max_wr;
attr->attr.max_sge = resp->max_sge;
} else {
struct ibv_create_srq_resp_v5 *resp_v5 =
(struct ibv_create_srq_resp_v5 *) resp;
memmove((void *) resp + sizeof *resp,
(void *) resp_v5 + sizeof *resp_v5,
resp_size - sizeof *resp);
}
return 0;
}
int ibv_cmd_create_srq_ex(struct ibv_context *context,
struct verbs_srq *srq, int vsrq_sz,
struct ibv_srq_init_attr_ex *attr_ex,
struct ibv_create_xsrq *cmd, size_t cmd_size,
struct ib_uverbs_create_srq_resp *resp, size_t resp_size)
{
struct verbs_xrcd *vxrcd = NULL;
int ret;
if (attr_ex->comp_mask >= IBV_SRQ_INIT_ATTR_RESERVED)
return ENOSYS;
if (!(attr_ex->comp_mask & IBV_SRQ_INIT_ATTR_PD))
return EINVAL;
cmd->user_handle = (uintptr_t) srq;
cmd->pd_handle = attr_ex->pd->handle;
cmd->max_wr = attr_ex->attr.max_wr;
cmd->max_sge = attr_ex->attr.max_sge;
cmd->srq_limit = attr_ex->attr.srq_limit;
cmd->srq_type = (attr_ex->comp_mask & IBV_SRQ_INIT_ATTR_TYPE) ?
attr_ex->srq_type : IBV_SRQT_BASIC;
if (attr_ex->comp_mask & IBV_SRQ_INIT_ATTR_XRCD) {
if (!(attr_ex->comp_mask & IBV_SRQ_INIT_ATTR_CQ))
return EINVAL;
vxrcd = container_of(attr_ex->xrcd, struct verbs_xrcd, xrcd);
cmd->xrcd_handle = vxrcd->handle;
cmd->cq_handle = attr_ex->cq->handle;
} else if (attr_ex->comp_mask & IBV_SRQ_INIT_ATTR_TM) {
if (cmd->srq_type != IBV_SRQT_TM)
return EINVAL;
if (!(attr_ex->comp_mask & IBV_SRQ_INIT_ATTR_CQ) ||
!attr_ex->tm_cap.max_num_tags)
return EINVAL;
cmd->cq_handle = attr_ex->cq->handle;
cmd->max_num_tags = attr_ex->tm_cap.max_num_tags;
} else if (cmd->srq_type != IBV_SRQT_BASIC) {
return EINVAL;
}
ret = execute_cmd_write(context, IB_USER_VERBS_CMD_CREATE_XSRQ, cmd,
cmd_size, resp, resp_size);
if (ret)
return ret;
srq->srq.handle = resp->srq_handle;
srq->srq.context = context;
srq->srq.srq_context = attr_ex->srq_context;
srq->srq.pd = attr_ex->pd;
srq->srq.events_completed = 0;
pthread_mutex_init(&srq->srq.mutex, NULL);
pthread_cond_init(&srq->srq.cond, NULL);
/*
* check that the last field is available.
* If it is than all the others exist as well
*/
if (vext_field_avail(struct verbs_srq, srq_num, vsrq_sz)) {
srq->comp_mask = IBV_SRQ_INIT_ATTR_TYPE;
srq->srq_type = (attr_ex->comp_mask & IBV_SRQ_INIT_ATTR_TYPE) ?
attr_ex->srq_type : IBV_SRQT_BASIC;
if (srq->srq_type == IBV_SRQT_XRC) {
srq->comp_mask |= VERBS_SRQ_NUM;
srq->srq_num = resp->srqn;
}
if (attr_ex->comp_mask & IBV_SRQ_INIT_ATTR_XRCD) {
srq->comp_mask |= VERBS_SRQ_XRCD;
srq->xrcd = vxrcd;
}
if (attr_ex->comp_mask & IBV_SRQ_INIT_ATTR_CQ) {
srq->comp_mask |= VERBS_SRQ_CQ;
srq->cq = attr_ex->cq;
}
}
attr_ex->attr.max_wr = resp->max_wr;
attr_ex->attr.max_sge = resp->max_sge;
return 0;
}
static int ibv_cmd_modify_srq_v3(struct ibv_srq *srq,
struct ibv_srq_attr *srq_attr,
int srq_attr_mask,
struct ibv_modify_srq *new_cmd,
size_t new_cmd_size)
{
struct ibv_modify_srq_v3 *cmd;
size_t cmd_size;
cmd_size = sizeof *cmd + new_cmd_size - sizeof *new_cmd;
cmd = alloca(cmd_size);
memcpy(cmd + 1, new_cmd + 1, new_cmd_size - sizeof *new_cmd);
cmd->core_payload = (struct ib_uverbs_modify_srq_v3){
.srq_handle = srq->handle,
.attr_mask = srq_attr_mask,
.max_wr = srq_attr->max_wr,
.srq_limit = srq_attr->srq_limit,
};
return execute_cmd_write_req(
srq->context, IB_USER_VERBS_CMD_MODIFY_SRQ_V3, cmd, cmd_size);
}
int ibv_cmd_modify_srq(struct ibv_srq *srq,
struct ibv_srq_attr *srq_attr,
int srq_attr_mask,
struct ibv_modify_srq *cmd, size_t cmd_size)
{
if (abi_ver == 3)
return ibv_cmd_modify_srq_v3(srq, srq_attr, srq_attr_mask,
cmd, cmd_size);
cmd->srq_handle = srq->handle;
cmd->attr_mask = srq_attr_mask;
cmd->max_wr = srq_attr->max_wr;
cmd->srq_limit = srq_attr->srq_limit;
return execute_cmd_write_req(srq->context, IB_USER_VERBS_CMD_MODIFY_SRQ,
cmd, cmd_size);
}
int ibv_cmd_query_srq(struct ibv_srq *srq, struct ibv_srq_attr *srq_attr,
struct ibv_query_srq *cmd, size_t cmd_size)
{
struct ib_uverbs_query_srq_resp resp;
int ret;
cmd->srq_handle = srq->handle;
cmd->reserved = 0;
ret = execute_cmd_write(srq->context, IB_USER_VERBS_CMD_QUERY_SRQ, cmd,
cmd_size, &resp, sizeof(resp));
if (ret)
return ret;
srq_attr->max_wr = resp.max_wr;
srq_attr->max_sge = resp.max_sge;
srq_attr->srq_limit = resp.srq_limit;
return 0;
}
int ibv_cmd_destroy_srq(struct ibv_srq *srq)
{
struct ibv_destroy_srq req;
struct ib_uverbs_destroy_srq_resp resp;
int ret;
req.core_payload = (struct ib_uverbs_destroy_srq){
.srq_handle = srq->handle,
};
ret = execute_cmd_write(srq->context, IB_USER_VERBS_CMD_DESTROY_SRQ,
&req, sizeof(req), &resp, sizeof(resp));
if (verbs_is_destroy_err(&ret))
return ret;
pthread_mutex_lock(&srq->mutex);
while (srq->events_completed != resp.events_reported)
pthread_cond_wait(&srq->cond, &srq->mutex);
pthread_mutex_unlock(&srq->mutex);
return 0;
}
static int create_qp_ex_common(struct verbs_qp *qp,
struct ibv_qp_init_attr_ex *qp_attr,
struct verbs_xrcd *vxrcd,
struct ib_uverbs_create_qp *cmd)
{
cmd->user_handle = (uintptr_t)qp;
if (qp_attr->comp_mask & IBV_QP_INIT_ATTR_XRCD) {
vxrcd = container_of(qp_attr->xrcd, struct verbs_xrcd, xrcd);
cmd->pd_handle = vxrcd->handle;
} else {
if (!(qp_attr->comp_mask & IBV_QP_INIT_ATTR_PD))
return EINVAL;
cmd->pd_handle = qp_attr->pd->handle;
if (qp_attr->comp_mask & IBV_QP_INIT_ATTR_IND_TABLE) {
if (cmd->max_recv_wr || cmd->max_recv_sge ||
cmd->recv_cq_handle || qp_attr->srq)
return EINVAL;
/* send_cq is optinal */
if (qp_attr->cap.max_send_wr)
cmd->send_cq_handle = qp_attr->send_cq->handle;
} else {
cmd->send_cq_handle = qp_attr->send_cq->handle;
if (qp_attr->qp_type != IBV_QPT_XRC_SEND) {
cmd->recv_cq_handle = qp_attr->recv_cq->handle;
cmd->srq_handle = qp_attr->srq ? qp_attr->srq->handle :
0;
}
}
}
cmd->max_send_wr = qp_attr->cap.max_send_wr;
cmd->max_recv_wr = qp_attr->cap.max_recv_wr;
cmd->max_send_sge = qp_attr->cap.max_send_sge;
cmd->max_recv_sge = qp_attr->cap.max_recv_sge;
cmd->max_inline_data = qp_attr->cap.max_inline_data;
cmd->sq_sig_all = qp_attr->sq_sig_all;
cmd->qp_type = qp_attr->qp_type;
cmd->is_srq = !!qp_attr->srq;
cmd->reserved = 0;
return 0;
}
static void create_qp_handle_resp_common(struct ibv_context *context,
struct verbs_qp *qp,
struct ibv_qp_init_attr_ex *qp_attr,
struct ib_uverbs_create_qp_resp *resp,
struct verbs_xrcd *vxrcd,
int vqp_sz)
{
if (abi_ver > 3) {
qp_attr->cap.max_recv_sge = resp->max_recv_sge;
qp_attr->cap.max_send_sge = resp->max_send_sge;
qp_attr->cap.max_recv_wr = resp->max_recv_wr;
qp_attr->cap.max_send_wr = resp->max_send_wr;
qp_attr->cap.max_inline_data = resp->max_inline_data;
}
qp->qp.handle = resp->qp_handle;
qp->qp.qp_num = resp->qpn;
qp->qp.context = context;
qp->qp.qp_context = qp_attr->qp_context;
qp->qp.pd = qp_attr->pd;
qp->qp.send_cq = qp_attr->send_cq;
qp->qp.recv_cq = qp_attr->recv_cq;
qp->qp.srq = qp_attr->srq;
qp->qp.qp_type = qp_attr->qp_type;
qp->qp.state = IBV_QPS_RESET;
qp->qp.events_completed = 0;
pthread_mutex_init(&qp->qp.mutex, NULL);
pthread_cond_init(&qp->qp.cond, NULL);
qp->comp_mask = 0;
if (vext_field_avail(struct verbs_qp, xrcd, vqp_sz) &&
(qp_attr->comp_mask & IBV_QP_INIT_ATTR_XRCD)) {
qp->comp_mask |= VERBS_QP_XRCD;
qp->xrcd = vxrcd;
}
}
enum {
CREATE_QP_EX2_SUP_CREATE_FLAGS = IBV_QP_CREATE_BLOCK_SELF_MCAST_LB |
IBV_QP_CREATE_SCATTER_FCS |
IBV_QP_CREATE_CVLAN_STRIPPING |
IBV_QP_CREATE_SOURCE_QPN |
IBV_QP_CREATE_PCI_WRITE_END_PADDING,
};
int ibv_cmd_create_qp_ex2(struct ibv_context *context,
struct verbs_qp *qp, int vqp_sz,
struct ibv_qp_init_attr_ex *qp_attr,
struct ibv_create_qp_ex *cmd,
size_t cmd_size,
struct ib_uverbs_ex_create_qp_resp *resp,
size_t resp_size)
{
struct verbs_xrcd *vxrcd = NULL;
int err;
if (qp_attr->comp_mask >= IBV_QP_INIT_ATTR_RESERVED)
return EINVAL;
memset(&cmd->core_payload, 0, sizeof(cmd->core_payload));
err = create_qp_ex_common(qp, qp_attr, vxrcd,
ibv_create_qp_ex_to_reg(cmd));
if (err)
return err;
if (qp_attr->comp_mask & IBV_QP_INIT_ATTR_CREATE_FLAGS) {
if (qp_attr->create_flags & ~CREATE_QP_EX2_SUP_CREATE_FLAGS)
return EINVAL;
cmd->create_flags = qp_attr->create_flags;
if (qp_attr->create_flags & IBV_QP_CREATE_SOURCE_QPN)
cmd->source_qpn = qp_attr->source_qpn;
}
if (qp_attr->comp_mask & IBV_QP_INIT_ATTR_IND_TABLE) {
cmd->rwq_ind_tbl_handle = qp_attr->rwq_ind_tbl->ind_tbl_handle;
cmd->comp_mask = IB_UVERBS_CREATE_QP_MASK_IND_TABLE;
}
err = execute_cmd_write_ex(context, IB_USER_VERBS_EX_CMD_CREATE_QP,
cmd, cmd_size, resp, resp_size);
if (err)
return err;
create_qp_handle_resp_common(context, qp, qp_attr, &resp->base, vxrcd,
vqp_sz);
return 0;
}
int ibv_cmd_create_qp_ex(struct ibv_context *context,
struct verbs_qp *qp, int vqp_sz,
struct ibv_qp_init_attr_ex *attr_ex,
struct ibv_create_qp *cmd, size_t cmd_size,
struct ib_uverbs_create_qp_resp *resp, size_t resp_size)
{
struct verbs_xrcd *vxrcd = NULL;
int err;
if (attr_ex->comp_mask > (IBV_QP_INIT_ATTR_XRCD | IBV_QP_INIT_ATTR_PD))
return ENOSYS;
err = create_qp_ex_common(qp, attr_ex, vxrcd,
&cmd->core_payload);
if (err)
return err;
err = execute_cmd_write(context, IB_USER_VERBS_CMD_CREATE_QP, cmd,
cmd_size, resp, resp_size);
if (err)
return err;
if (abi_ver == 4) {
struct ibv_create_qp_resp_v4 *resp_v4 =
(struct ibv_create_qp_resp_v4 *)resp;
memmove((void *)resp + sizeof *resp,
(void *)resp_v4 + sizeof *resp_v4,
resp_size - sizeof *resp);
} else if (abi_ver <= 3) {
struct ibv_create_qp_resp_v3 *resp_v3 =
(struct ibv_create_qp_resp_v3 *)resp;
memmove((void *)resp + sizeof *resp,
(void *)resp_v3 + sizeof *resp_v3,
resp_size - sizeof *resp);
}
create_qp_handle_resp_common(context, qp, attr_ex, resp, vxrcd, vqp_sz);
return 0;
}
int ibv_cmd_create_qp(struct ibv_pd *pd,
struct ibv_qp *qp, struct ibv_qp_init_attr *attr,
struct ibv_create_qp *cmd, size_t cmd_size,
struct ib_uverbs_create_qp_resp *resp, size_t resp_size)
{
int ret;
cmd->user_handle = (uintptr_t) qp;
cmd->pd_handle = pd->handle;
cmd->send_cq_handle = attr->send_cq->handle;
cmd->recv_cq_handle = attr->recv_cq->handle;
cmd->srq_handle = attr->srq ? attr->srq->handle : 0;
cmd->max_send_wr = attr->cap.max_send_wr;
cmd->max_recv_wr = attr->cap.max_recv_wr;
cmd->max_send_sge = attr->cap.max_send_sge;
cmd->max_recv_sge = attr->cap.max_recv_sge;
cmd->max_inline_data = attr->cap.max_inline_data;
cmd->sq_sig_all = attr->sq_sig_all;
cmd->qp_type = attr->qp_type;
cmd->is_srq = !!attr->srq;
cmd->reserved = 0;
ret = execute_cmd_write(pd->context, IB_USER_VERBS_CMD_CREATE_QP, cmd,
cmd_size, resp, resp_size);
if (ret)
return ret;
qp->handle = resp->qp_handle;
qp->qp_num = resp->qpn;
qp->context = pd->context;
if (abi_ver > 3) {
attr->cap.max_recv_sge = resp->max_recv_sge;
attr->cap.max_send_sge = resp->max_send_sge;
attr->cap.max_recv_wr = resp->max_recv_wr;
attr->cap.max_send_wr = resp->max_send_wr;
attr->cap.max_inline_data = resp->max_inline_data;
}
if (abi_ver == 4) {
struct ibv_create_qp_resp_v4 *resp_v4 =
(struct ibv_create_qp_resp_v4 *) resp;
memmove((void *) resp + sizeof *resp,
(void *) resp_v4 + sizeof *resp_v4,
resp_size - sizeof *resp);
} else if (abi_ver <= 3) {
struct ibv_create_qp_resp_v3 *resp_v3 =
(struct ibv_create_qp_resp_v3 *) resp;
memmove((void *) resp + sizeof *resp,
(void *) resp_v3 + sizeof *resp_v3,
resp_size - sizeof *resp);
}
return 0;
}
int ibv_cmd_open_qp(struct ibv_context *context, struct verbs_qp *qp,
int vqp_sz,
struct ibv_qp_open_attr *attr,
struct ibv_open_qp *cmd, size_t cmd_size,
struct ib_uverbs_create_qp_resp *resp, size_t resp_size)
{
struct verbs_xrcd *xrcd;
int ret;
if (attr->comp_mask >= IBV_QP_OPEN_ATTR_RESERVED)
return ENOSYS;
if (!(attr->comp_mask & IBV_QP_OPEN_ATTR_XRCD) ||
!(attr->comp_mask & IBV_QP_OPEN_ATTR_NUM) ||
!(attr->comp_mask & IBV_QP_OPEN_ATTR_TYPE))
return EINVAL;
xrcd = container_of(attr->xrcd, struct verbs_xrcd, xrcd);
cmd->user_handle = (uintptr_t) qp;
cmd->pd_handle = xrcd->handle;
cmd->qpn = attr->qp_num;
cmd->qp_type = attr->qp_type;
ret = execute_cmd_write(context, IB_USER_VERBS_CMD_OPEN_QP, cmd,
cmd_size, resp, resp_size);
if (ret)
return ret;
qp->qp.handle = resp->qp_handle;
qp->qp.context = context;
qp->qp.qp_context = attr->qp_context;
qp->qp.pd = NULL;
qp->qp.send_cq = NULL;
qp->qp.recv_cq = NULL;
qp->qp.srq = NULL;
qp->qp.qp_num = attr->qp_num;
qp->qp.qp_type = attr->qp_type;
qp->qp.state = IBV_QPS_UNKNOWN;
qp->qp.events_completed = 0;
pthread_mutex_init(&qp->qp.mutex, NULL);
pthread_cond_init(&qp->qp.cond, NULL);
qp->comp_mask = 0;
if (vext_field_avail(struct verbs_qp, xrcd, vqp_sz)) {
qp->comp_mask = VERBS_QP_XRCD;
qp->xrcd = xrcd;
}
return 0;
}
int ibv_cmd_query_qp(struct ibv_qp *qp, struct ibv_qp_attr *attr,
int attr_mask,
struct ibv_qp_init_attr *init_attr,
struct ibv_query_qp *cmd, size_t cmd_size)
{
struct ib_uverbs_query_qp_resp resp;
int ret;
/*
* Starting with IBV_QP_RATE_LIMIT the attribute must go through the
* _ex path.
*/
if (attr_mask & ~(IBV_QP_RATE_LIMIT - 1))
return EOPNOTSUPP;
cmd->qp_handle = qp->handle;
cmd->attr_mask = attr_mask;
ret = execute_cmd_write(qp->context, IB_USER_VERBS_CMD_QUERY_QP, cmd,
cmd_size, &resp, sizeof(resp));
if (ret)
return ret;
attr->qkey = resp.qkey;
attr->rq_psn = resp.rq_psn;