blob: 11f5de95d0afc86e7126d9c4425f8b7a2d4142d2 [file] [log] [blame]
/*
* 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.
*/
#if HAVE_CONFIG_H
# include <config.h>
#endif /* HAVE_CONFIG_H */
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <errno.h>
#include <alloca.h>
#include <string.h>
#include "ibverbs.h"
int ibv_cmd_get_context(struct ibv_context *context, struct ibv_get_context *cmd,
size_t cmd_size, struct ibv_get_context_resp *resp,
size_t resp_size)
{
if (abi_ver < IB_USER_VERBS_MIN_ABI_VERSION)
return ENOSYS;
IBV_INIT_CMD_RESP(cmd, cmd_size, GET_CONTEXT, resp, resp_size);
if (write(context->cmd_fd, cmd, cmd_size) != cmd_size)
return errno;
(void) VALGRIND_MAKE_MEM_DEFINED(resp, resp_size);
context->async_fd = resp->async_fd;
context->num_comp_vectors = resp->num_comp_vectors;
return 0;
}
static void copy_query_dev_fields(struct ibv_device_attr *device_attr,
struct ibv_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 ibv_query_device_resp resp;
IBV_INIT_CMD_RESP(cmd, cmd_size, QUERY_DEVICE, &resp, sizeof resp);
if (write(context->cmd_fd, cmd, cmd_size) != cmd_size)
return errno;
(void) VALGRIND_MAKE_MEM_DEFINED(&resp, sizeof resp);
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_core_size,
size_t cmd_size,
struct ibv_query_device_resp_ex *resp,
size_t resp_core_size,
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;
if (resp_core_size < offsetof(struct ibv_query_device_resp_ex,
response_length) +
sizeof(resp->response_length))
return EINVAL;
IBV_INIT_CMD_RESP_EX_V(cmd, cmd_core_size, cmd_size,
QUERY_DEVICE_EX, resp, resp_core_size,
resp_size);
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 = write(context->cmd_fd, cmd, cmd_size);
if (err != cmd_size)
return errno;
(void)VALGRIND_MAKE_MEM_DEFINED(resp, resp_size);
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 ibv_query_device_resp_ex, 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 ibv_query_device_resp_ex, 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 ibv_query_device_resp_ex, 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 ibv_query_device_resp_ex, device_cap_flags_ex) +
sizeof(resp->device_cap_flags_ex))
attr->device_cap_flags_ex = resp->device_cap_flags_ex;
}
return 0;
}
int ibv_cmd_query_port(struct ibv_context *context, uint8_t port_num,
struct ibv_port_attr *port_attr,
struct ibv_query_port *cmd, size_t cmd_size)
{
struct ibv_query_port_resp resp;
IBV_INIT_CMD_RESP(cmd, cmd_size, QUERY_PORT, &resp, sizeof resp);
cmd->port_num = port_num;
memset(cmd->reserved, 0, sizeof cmd->reserved);
if (write(context->cmd_fd, cmd, cmd_size) != cmd_size)
return errno;
(void) VALGRIND_MAKE_MEM_DEFINED(&resp, sizeof resp);
port_attr->state = resp.state;
port_attr->max_mtu = resp.max_mtu;
port_attr->active_mtu = resp.active_mtu;
port_attr->gid_tbl_len = resp.gid_tbl_len;
port_attr->port_cap_flags = resp.port_cap_flags;
port_attr->max_msg_sz = resp.max_msg_sz;
port_attr->bad_pkey_cntr = resp.bad_pkey_cntr;
port_attr->qkey_viol_cntr = resp.qkey_viol_cntr;
port_attr->pkey_tbl_len = resp.pkey_tbl_len;
port_attr->lid = resp.lid;
port_attr->sm_lid = resp.sm_lid;
port_attr->lmc = resp.lmc;
port_attr->max_vl_num = resp.max_vl_num;
port_attr->sm_sl = resp.sm_sl;
port_attr->subnet_timeout = resp.subnet_timeout;
port_attr->init_type_reply = resp.init_type_reply;
port_attr->active_width = resp.active_width;
port_attr->active_speed = resp.active_speed;
port_attr->phys_state = resp.phys_state;
port_attr->link_layer = resp.link_layer;
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 ibv_alloc_pd_resp *resp, size_t resp_size)
{
IBV_INIT_CMD_RESP(cmd, cmd_size, ALLOC_PD, resp, resp_size);
if (write(context->cmd_fd, cmd, cmd_size) != cmd_size)
return errno;
(void) VALGRIND_MAKE_MEM_DEFINED(resp, resp_size);
pd->handle = resp->pd_handle;
pd->context = context;
return 0;
}
int ibv_cmd_dealloc_pd(struct ibv_pd *pd)
{
struct ibv_dealloc_pd cmd;
IBV_INIT_CMD(&cmd, sizeof cmd, DEALLOC_PD);
cmd.pd_handle = pd->handle;
if (write(pd->context->cmd_fd, &cmd, sizeof cmd) != sizeof cmd)
return errno;
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 ibv_open_xrcd_resp *resp, size_t resp_size)
{
IBV_INIT_CMD_RESP(cmd, cmd_size, OPEN_XRCD, resp, resp_size);
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;
if (write(context->cmd_fd, cmd, cmd_size) != cmd_size)
return errno;
(void) VALGRIND_MAKE_MEM_DEFINED(resp, resp_size);
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_close_xrcd(struct verbs_xrcd *xrcd)
{
struct ibv_close_xrcd cmd;
IBV_INIT_CMD(&cmd, sizeof cmd, CLOSE_XRCD);
cmd.xrcd_handle = xrcd->handle;
if (write(xrcd->xrcd.context->cmd_fd, &cmd, sizeof cmd) != sizeof cmd)
return errno;
return 0;
}
int ibv_cmd_reg_mr(struct ibv_pd *pd, void *addr, size_t length,
uint64_t hca_va, int access,
struct ibv_mr *mr, struct ibv_reg_mr *cmd,
size_t cmd_size,
struct ibv_reg_mr_resp *resp, size_t resp_size)
{
IBV_INIT_CMD_RESP(cmd, cmd_size, REG_MR, resp, resp_size);
cmd->start = (uintptr_t) addr;
cmd->length = length;
cmd->hca_va = hca_va;
cmd->pd_handle = pd->handle;
cmd->access_flags = access;
if (write(pd->context->cmd_fd, cmd, cmd_size) != cmd_size)
return errno;
(void) VALGRIND_MAKE_MEM_DEFINED(resp, resp_size);
mr->handle = resp->mr_handle;
mr->lkey = resp->lkey;
mr->rkey = resp->rkey;
mr->context = pd->context;
return 0;
}
int ibv_cmd_rereg_mr(struct ibv_mr *mr, 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 ibv_rereg_mr_resp *resp,
size_t resp_sz)
{
IBV_INIT_CMD_RESP(cmd, cmd_sz, REREG_MR, resp, resp_sz);
cmd->mr_handle = 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;
if (write(mr->context->cmd_fd, cmd, cmd_sz) != cmd_sz)
return errno;
(void)VALGRIND_MAKE_MEM_DEFINED(resp, resp_sz);
mr->lkey = resp->lkey;
mr->rkey = resp->rkey;
if (flags & IBV_REREG_MR_CHANGE_PD)
mr->context = pd->context;
return 0;
}
int ibv_cmd_dereg_mr(struct ibv_mr *mr)
{
struct ibv_dereg_mr cmd;
IBV_INIT_CMD(&cmd, sizeof cmd, DEREG_MR);
cmd.mr_handle = mr->handle;
if (write(mr->context->cmd_fd, &cmd, sizeof cmd) != sizeof cmd)
return errno;
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 ibv_alloc_mw_resp *resp, size_t resp_size)
{
IBV_INIT_CMD_RESP(cmd, cmd_size, ALLOC_MW, resp, resp_size);
cmd->pd_handle = pd->handle;
cmd->mw_type = type;
memset(cmd->reserved, 0, sizeof(cmd->reserved));
if (write(pd->context->cmd_fd, cmd, cmd_size) != cmd_size)
return errno;
(void) VALGRIND_MAKE_MEM_DEFINED(resp, resp_size);
mw->context = pd->context;
mw->pd = pd;
mw->rkey = resp->rkey;
mw->handle = resp->mw_handle;
mw->type = type;
return 0;
}
int ibv_cmd_dealloc_mw(struct ibv_mw *mw,
struct ibv_dealloc_mw *cmd, size_t cmd_size)
{
IBV_INIT_CMD(cmd, cmd_size, DEALLOC_MW);
cmd->mw_handle = mw->handle;
cmd->reserved = 0;
if (write(mw->context->cmd_fd, cmd, cmd_size) != cmd_size)
return errno;
return 0;
}
int ibv_cmd_create_cq(struct ibv_context *context, int cqe,
struct ibv_comp_channel *channel,
int comp_vector, struct ibv_cq *cq,
struct ibv_create_cq *cmd, size_t cmd_size,
struct ibv_create_cq_resp *resp, size_t resp_size)
{
IBV_INIT_CMD_RESP(cmd, cmd_size, CREATE_CQ, resp, resp_size);
cmd->user_handle = (uintptr_t) cq;
cmd->cqe = cqe;
cmd->comp_vector = comp_vector;
cmd->comp_channel = channel ? channel->fd : -1;
cmd->reserved = 0;
if (write(context->cmd_fd, cmd, cmd_size) != cmd_size)
return errno;
(void) VALGRIND_MAKE_MEM_DEFINED(resp, resp_size);
cq->handle = resp->cq_handle;
cq->cqe = resp->cqe;
cq->context = context;
return 0;
}
int ibv_cmd_create_cq_ex(struct ibv_context *context,
struct ibv_cq_init_attr_ex *cq_attr,
struct ibv_cq_ex *cq,
struct ibv_create_cq_ex *cmd,
size_t cmd_core_size,
size_t cmd_size,
struct ibv_create_cq_resp_ex *resp,
size_t resp_core_size,
size_t resp_size)
{
int err;
memset(cmd, 0, cmd_core_size);
IBV_INIT_CMD_RESP_EX_V(cmd, cmd_core_size, cmd_size, CREATE_CQ_EX, resp,
resp_core_size, resp_size);
if (cq_attr->comp_mask & ~(IBV_CQ_INIT_ATTR_MASK_RESERVED - 1))
return EINVAL;
cmd->user_handle = (uintptr_t)cq;
cmd->cqe = cq_attr->cqe;
cmd->comp_vector = cq_attr->comp_vector;
cmd->comp_channel = cq_attr->channel ? cq_attr->channel->fd : -1;
cmd->comp_mask = 0;
if (cmd_core_size >= offsetof(struct ibv_create_cq_ex, flags) +
sizeof(cmd->flags)) {
if ((cq_attr->comp_mask & IBV_CQ_INIT_ATTR_MASK_FLAGS) &&
(cq_attr->flags & ~(IBV_CREATE_CQ_ATTR_RESERVED - 1)))
return EOPNOTSUPP;
if (cq_attr->wc_flags & IBV_WC_EX_WITH_COMPLETION_TIMESTAMP)
cmd->flags |= IBV_CREATE_CQ_EX_KERNEL_FLAG_COMPLETION_TIMESTAMP;
}
err = write(context->cmd_fd, cmd, cmd_size);
if (err != cmd_size)
return errno;
(void)VALGRIND_MAKE_MEM_DEFINED(resp, resp_size);
cq->handle = resp->base.cq_handle;
cq->cqe = resp->base.cqe;
cq->context = context;
return 0;
}
int ibv_cmd_poll_cq(struct ibv_cq *ibcq, int ne, struct ibv_wc *wc)
{
struct ibv_poll_cq cmd;
struct ibv_poll_cq_resp *resp;
int i;
int rsize;
int ret;
rsize = sizeof *resp + ne * sizeof(struct ibv_kern_wc);
resp = malloc(rsize);
if (!resp)
return -1;
IBV_INIT_CMD_RESP(&cmd, sizeof cmd, POLL_CQ, resp, rsize);
cmd.cq_handle = ibcq->handle;
cmd.ne = ne;
if (write(ibcq->context->cmd_fd, &cmd, sizeof cmd) != sizeof cmd) {
ret = -1;
goto out;
}
(void) VALGRIND_MAKE_MEM_DEFINED(resp, rsize);
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].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 cmd;
IBV_INIT_CMD(&cmd, sizeof cmd, REQ_NOTIFY_CQ);
cmd.cq_handle = ibcq->handle;
cmd.solicited = !!solicited_only;
if (write(ibcq->context->cmd_fd, &cmd, sizeof cmd) != sizeof cmd)
return errno;
return 0;
}
int ibv_cmd_resize_cq(struct ibv_cq *cq, int cqe,
struct ibv_resize_cq *cmd, size_t cmd_size,
struct ibv_resize_cq_resp *resp, size_t resp_size)
{
IBV_INIT_CMD_RESP(cmd, cmd_size, RESIZE_CQ, resp, resp_size);
cmd->cq_handle = cq->handle;
cmd->cqe = cqe;
if (write(cq->context->cmd_fd, cmd, cmd_size) != cmd_size)
return errno;
(void) VALGRIND_MAKE_MEM_DEFINED(resp, resp_size);
cq->cqe = resp->cqe;
return 0;
}
int ibv_cmd_destroy_cq(struct ibv_cq *cq)
{
struct ibv_destroy_cq cmd;
struct ibv_destroy_cq_resp resp;
IBV_INIT_CMD_RESP(&cmd, sizeof cmd, DESTROY_CQ, &resp, sizeof resp);
cmd.cq_handle = cq->handle;
cmd.reserved = 0;
if (write(cq->context->cmd_fd, &cmd, sizeof cmd) != sizeof cmd)
return errno;
(void) VALGRIND_MAKE_MEM_DEFINED(&resp, sizeof resp);
pthread_mutex_lock(&cq->mutex);
while (cq->comp_events_completed != resp.comp_events_reported ||
cq->async_events_completed != resp.async_events_reported)
pthread_cond_wait(&cq->cond, &cq->mutex);
pthread_mutex_unlock(&cq->mutex);
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 ibv_create_srq_resp *resp, size_t resp_size)
{
IBV_INIT_CMD_RESP(cmd, cmd_size, CREATE_SRQ, resp, resp_size);
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;
if (write(pd->context->cmd_fd, cmd, cmd_size) != cmd_size)
return errno;
(void) VALGRIND_MAKE_MEM_DEFINED(resp, resp_size);
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 ibv_create_srq_resp *resp, size_t resp_size)
{
struct verbs_xrcd *vxrcd = NULL;
IBV_INIT_CMD_RESP(cmd, cmd_size, CREATE_XSRQ, resp, resp_size);
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;
}
if (write(context->cmd_fd, cmd, cmd_size) != cmd_size)
return errno;
(void) VALGRIND_MAKE_MEM_DEFINED(resp, resp_size);
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->driver_data, new_cmd->driver_data, new_cmd_size - sizeof *new_cmd);
IBV_INIT_CMD(cmd, cmd_size, MODIFY_SRQ);
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;
cmd->max_sge = 0;
cmd->reserved = 0;
if (write(srq->context->cmd_fd, cmd, cmd_size) != cmd_size)
return errno;
return 0;
}
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);
IBV_INIT_CMD(cmd, cmd_size, MODIFY_SRQ);
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;
if (write(srq->context->cmd_fd, cmd, cmd_size) != cmd_size)
return errno;
return 0;
}
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 ibv_query_srq_resp resp;
IBV_INIT_CMD_RESP(cmd, cmd_size, QUERY_SRQ, &resp, sizeof resp);
cmd->srq_handle = srq->handle;
cmd->reserved = 0;
if (write(srq->context->cmd_fd, cmd, cmd_size) != cmd_size)
return errno;
(void) VALGRIND_MAKE_MEM_DEFINED(&resp, sizeof resp);
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 cmd;
struct ibv_destroy_srq_resp resp;
IBV_INIT_CMD_RESP(&cmd, sizeof cmd, DESTROY_SRQ, &resp, sizeof resp);
cmd.srq_handle = srq->handle;
cmd.reserved = 0;
if (write(srq->context->cmd_fd, &cmd, sizeof cmd) != sizeof cmd)
return errno;
(void) VALGRIND_MAKE_MEM_DEFINED(&resp, sizeof resp);
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 ibv_create_qp_common *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;
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 ibv_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,
};
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_core_size,
size_t cmd_size,
struct ibv_create_qp_resp_ex *resp,
size_t resp_core_size,
size_t resp_size)
{
struct verbs_xrcd *vxrcd = NULL;
int err;
if (qp_attr->comp_mask >= IBV_QP_INIT_ATTR_RESERVED)
return EINVAL;
if (resp_core_size <
offsetof(struct ibv_create_qp_resp_ex, response_length) +
sizeof(resp->response_length))
return EINVAL;
memset(cmd, 0, cmd_core_size);
IBV_INIT_CMD_RESP_EX_V(cmd, cmd_core_size, cmd_size, CREATE_QP_EX, resp,
resp_core_size, resp_size);
err = create_qp_ex_common(qp, qp_attr, vxrcd, &cmd->base);
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;
if (cmd_core_size < offsetof(struct ibv_create_qp_ex, create_flags) +
sizeof(qp_attr->create_flags))
return EINVAL;
cmd->create_flags = qp_attr->create_flags;
}
err = write(context->cmd_fd, cmd, cmd_size);
if (err != cmd_size)
return errno;
(void)VALGRIND_MAKE_MEM_DEFINED(resp, resp_size);
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 ibv_create_qp_resp *resp, size_t resp_size)
{
struct verbs_xrcd *vxrcd = NULL;
int err;
IBV_INIT_CMD_RESP(cmd, cmd_size, CREATE_QP, resp, resp_size);
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,
(struct ibv_create_qp_common *)&cmd->user_handle);
if (err)
return err;
if (write(context->cmd_fd, cmd, cmd_size) != cmd_size)
return errno;
(void)VALGRIND_MAKE_MEM_DEFINED(resp, resp_size);
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 ibv_create_qp_resp *resp, size_t resp_size)
{
IBV_INIT_CMD_RESP(cmd, cmd_size, CREATE_QP, resp, resp_size);
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;
if (write(pd->context->cmd_fd, cmd, cmd_size) != cmd_size)
return errno;
(void) VALGRIND_MAKE_MEM_DEFINED(resp, resp_size);
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 ibv_create_qp_resp *resp, size_t resp_size)
{
struct verbs_xrcd *xrcd;
IBV_INIT_CMD_RESP(cmd, cmd_size, OPEN_QP, resp, resp_size);
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;
if (write(context->cmd_fd, cmd, cmd_size) != cmd_size)
return errno;
(void) VALGRIND_MAKE_MEM_DEFINED(resp, resp_size);
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 ibv_query_qp_resp resp;
IBV_INIT_CMD_RESP(cmd, cmd_size, QUERY_QP, &resp, sizeof resp);
cmd->qp_handle = qp->handle;
cmd->attr_mask = attr_mask;
if (write(qp->context->cmd_fd, cmd, cmd_size) != cmd_size)
return errno;
(void) VALGRIND_MAKE_MEM_DEFINED(&resp, sizeof resp);
attr->qkey = resp.qkey;
attr->rq_psn = resp.rq_psn;
attr->sq_psn = resp.sq_psn;
attr->dest_qp_num = resp.dest_qp_num;
attr->qp_access_flags = resp.qp_access_flags;
attr->pkey_index = resp.pkey_index;
attr->alt_pkey_index = resp.alt_pkey_index;
attr->qp_state = resp.qp_state;
attr->cur_qp_state = resp.cur_qp_state;
attr->path_mtu = resp.path_mtu;
attr->path_mig_state = resp.path_mig_state;
attr->sq_draining = resp.sq_draining;
attr->max_rd_atomic = resp.max_rd_atomic;
attr->max_dest_rd_atomic = resp.max_dest_rd_atomic;
attr->min_rnr_timer = resp.min_rnr_timer;
attr->port_num = resp.port_num;
attr->timeout = resp.timeout;
attr->retry_cnt = resp.retry_cnt;
attr->rnr_retry = resp.rnr_retry;
attr->alt_port_num = resp.alt_port_num;
attr->alt_timeout = resp.alt_timeout;
attr->cap.max_send_wr = resp.max_send_wr;
attr->cap.max_recv_wr = resp.max_recv_wr;
attr->cap.max_send_sge = resp.max_send_sge;
attr->cap.max_recv_sge = resp.max_recv_sge;
attr->cap.max_inline_data = resp.max_inline_data;
memcpy(attr->ah_attr.grh.dgid.raw, resp.dest.dgid, 16);
attr->ah_attr.grh.flow_label = resp.dest.flow_label;
attr->ah_attr.dlid = resp.dest.dlid;
attr->ah_attr.grh.sgid_index = resp.dest.sgid_index;
attr->ah_attr.grh.hop_limit = resp.dest.hop_limit;
attr->ah_attr.grh.traffic_class = resp.dest.traffic_class;
attr->ah_attr.sl = resp.dest.sl;
attr->ah_attr.src_path_bits = resp.dest.src_path_bits;
attr->ah_attr.static_rate = resp.dest.static_rate;
attr->ah_attr.is_global = resp.dest.is_global;
attr->ah_attr.port_num = resp.dest.port_num;
memcpy(attr->alt_ah_attr.grh.dgid.raw, resp.alt_dest.dgid, 16);
attr->alt_ah_attr.grh.flow_label = resp.alt_dest.flow_label;
attr->alt_ah_attr.dlid = resp.alt_dest.dlid;
attr->alt_ah_attr.grh.sgid_index = resp.alt_dest.sgid_index;
attr->alt_ah_attr.grh.hop_limit = resp.alt_dest.hop_limit;
attr->alt_ah_attr.grh.traffic_class = resp.alt_dest.traffic_class;
attr->alt_ah_attr.sl = resp.alt_dest.sl;
attr->alt_ah_attr.src_path_bits = resp.alt_dest.src_path_bits;
attr->alt_ah_attr.static_rate = resp.alt_dest.static_rate;
attr->alt_ah_attr.is_global = resp.alt_dest.is_global;
attr->alt_ah_attr.port_num = resp.alt_dest.port_num;
init_attr->qp_context = qp->qp_context;
init_attr->send_cq = qp->send_cq;
init_attr->recv_cq = qp->recv_cq;
init_attr->srq = qp->srq;
init_attr->qp_type = qp->qp_type;
init_attr->cap.max_send_wr = resp.max_send_wr;
init_attr->cap.max_recv_wr = resp.max_recv_wr;
init_attr->cap.max_send_sge = resp.max_send_sge;
init_attr->cap.max_recv_sge = resp.max_recv_sge;
init_attr->cap.max_inline_data = resp.max_inline_data;
init_attr->sq_sig_all = resp.sq_sig_all;
return 0;
}
int ibv_cmd_modify_qp(struct ibv_qp *qp, struct ibv_qp_attr *attr,
int attr_mask,
struct ibv_modify_qp *cmd, size_t cmd_size)
{
IBV_INIT_CMD(cmd, cmd_size, MODIFY_QP);
cmd->qp_handle = qp->handle;
cmd->attr_mask = attr_mask;
cmd->qkey = attr->qkey;
cmd->rq_psn = attr->rq_psn;
cmd->sq_psn = attr->sq_psn;
cmd->dest_qp_num = attr->dest_qp_num;
cmd->qp_access_flags = attr->qp_access_flags;
cmd->pkey_index = attr->pkey_index;
cmd->alt_pkey_index = attr->alt_pkey_index;
cmd->qp_state = attr->qp_state;
cmd->cur_qp_state = attr->cur_qp_state;
cmd->path_mtu = attr->path_mtu;
cmd->path_mig_state = attr->path_mig_state;
cmd->en_sqd_async_notify = attr->en_sqd_async_notify;
cmd->max_rd_atomic = attr->max_rd_atomic;
cmd->max_dest_rd_atomic = attr->max_dest_rd_atomic;
cmd->min_rnr_timer = attr->min_rnr_timer;
cmd->port_num = attr->port_num;
cmd->timeout = attr->timeout;
cmd->retry_cnt = attr->retry_cnt;
cmd->rnr_retry = attr->rnr_retry;
cmd->alt_port_num = attr->alt_port_num;
cmd->alt_timeout = attr->alt_timeout;
memcpy(cmd->dest.dgid, attr->ah_attr.grh.dgid.raw, 16);
cmd->dest.flow_label = attr->ah_attr.grh.flow_label;
cmd->dest.dlid = attr->ah_attr.dlid;
cmd->dest.reserved = 0;
cmd->dest.sgid_index = attr->ah_attr.grh.sgid_index;
cmd->dest.hop_limit = attr->ah_attr.grh.hop_limit;
cmd->dest.traffic_class = attr->ah_attr.grh.traffic_class;
cmd->dest.sl = attr->ah_attr.sl;
cmd->dest.src_path_bits = attr->ah_attr.src_path_bits;
cmd->dest.static_rate = attr->ah_attr.static_rate;
cmd->dest.is_global = attr->ah_attr.is_global;
cmd->dest.port_num = attr->ah_attr.port_num;
memcpy(cmd->alt_dest.dgid, attr->alt_ah_attr.grh.dgid.raw, 16);
cmd->alt_dest.flow_label = attr->alt_ah_attr.grh.flow_label;
cmd->alt_dest.dlid = attr->alt_ah_attr.dlid;
cmd->alt_dest.reserved = 0;
cmd->alt_dest.sgid_index = attr->alt_ah_attr.grh.sgid_index;
cmd->alt_dest.hop_limit = attr->alt_ah_attr.grh.hop_limit;
cmd->alt_dest.traffic_class = attr->alt_ah_attr.grh.traffic_class;
cmd->alt_dest.sl = attr->alt_ah_attr.sl;
cmd->alt_dest.src_path_bits = attr->alt_ah_attr.src_path_bits;
cmd->alt_dest.static_rate = attr->alt_ah_attr.static_rate;
cmd->alt_dest.is_global = attr->alt_ah_attr.is_global;
cmd->alt_dest.port_num = attr->alt_ah_attr.port_num;
cmd->reserved[0] = cmd->reserved[1] = 0;
if (write(qp->context->cmd_fd, cmd, cmd_size) != cmd_size)
return errno;
return 0;
}
int ibv_cmd_post_send(struct ibv_qp *ibqp, struct ibv_send_wr *wr,
struct ibv_send_wr **bad_wr)
{
struct ibv_post_send *cmd;
struct ibv_post_send_resp resp;
struct ibv_send_wr *i;
struct ibv_kern_send_wr *n, *tmp;
struct ibv_sge *s;
unsigned wr_count = 0;
unsigned sge_count = 0;
int cmd_size;
int ret = 0;
for (i = wr; i; i = i->next) {
wr_count++;
sge_count += i->num_sge;
}
cmd_size = sizeof *cmd + wr_count * sizeof *n + sge_count * sizeof *s;
cmd = alloca(cmd_size);
IBV_INIT_CMD_RESP(cmd, cmd_size, POST_SEND, &resp, sizeof resp);
cmd->qp_handle = ibqp->handle;
cmd->wr_count = wr_count;
cmd->sge_count = sge_count;
cmd->wqe_size = sizeof *n;
n = (struct ibv_kern_send_wr *) ((void *) cmd + sizeof *cmd);
s = (struct ibv_sge *) (n + wr_count);
tmp = n;
for (i = wr; i; i = i->next) {
tmp->wr_id = i->wr_id;
tmp->num_sge = i->num_sge;
tmp->opcode = i->opcode;
tmp->send_flags = i->send_flags;
tmp->imm_data = i->imm_data;
if (ibqp->qp_type == IBV_QPT_UD) {
tmp->wr.ud.ah = i->wr.ud.ah->handle;
tmp->wr.ud.remote_qpn = i->wr.ud.remote_qpn;
tmp->wr.ud.remote_qkey = i->wr.ud.remote_qkey;
} else {
switch (i->opcode) {
case IBV_WR_RDMA_WRITE:
case IBV_WR_RDMA_WRITE_WITH_IMM:
case IBV_WR_RDMA_READ:
tmp->wr.rdma.remote_addr =
i->wr.rdma.remote_addr;
tmp->wr.rdma.rkey = i->wr.rdma.rkey;
break;
case IBV_WR_ATOMIC_CMP_AND_SWP:
case IBV_WR_ATOMIC_FETCH_AND_ADD:
tmp->wr.atomic.remote_addr =
i->wr.atomic.remote_addr;
tmp->wr.atomic.compare_add =
i->wr.atomic.compare_add;
tmp->wr.atomic.swap = i->wr.atomic.swap;
tmp->wr.atomic.rkey = i->wr.atomic.rkey;
break;
default:
break;
}
}
if (tmp->num_sge) {
memcpy(s, i->sg_list, tmp->num_sge * sizeof *s);
s += tmp->num_sge;
}
tmp++;
}
resp.bad_wr = 0;
if (write(ibqp->context->cmd_fd, cmd, cmd_size) != cmd_size)
ret = errno;
(void) VALGRIND_MAKE_MEM_DEFINED(&resp, sizeof resp);
wr_count = resp.bad_wr;
if (wr_count) {
i = wr;
while (--wr_count)
i = i->next;
*bad_wr = i;
} else if (ret)
*bad_wr = wr;
return ret;
}
int ibv_cmd_post_recv(struct ibv_qp *ibqp, struct ibv_recv_wr *wr,
struct ibv_recv_wr **bad_wr)
{
struct ibv_post_recv *cmd;
struct ibv_post_recv_resp resp;
struct ibv_recv_wr *i;
struct ibv_kern_recv_wr *n, *tmp;
struct ibv_sge *s;
unsigned wr_count = 0;
unsigned sge_count = 0;
int cmd_size;
int ret = 0;
for (i = wr; i; i = i->next) {
wr_count++;
sge_count += i->num_sge;
}
cmd_size = sizeof *cmd + wr_count * sizeof *n + sge_count * sizeof *s;
cmd = alloca(cmd_size);
IBV_INIT_CMD_RESP(cmd, cmd_size, POST_RECV, &resp, sizeof resp);
cmd->qp_handle = ibqp->handle;
cmd->wr_count = wr_count;
cmd->sge_count = sge_count;
cmd->wqe_size = sizeof *n;
n = (struct ibv_kern_recv_wr *) ((void *) cmd + sizeof *cmd);
s = (struct ibv_sge *) (n + wr_count);
tmp = n;
for (i = wr; i; i = i->next) {
tmp->wr_id = i->wr_id;
tmp->num_sge = i->num_sge;
if (tmp->num_sge) {
memcpy(s, i->sg_list, tmp->num_sge * sizeof *s);
s += tmp->num_sge;
}
tmp++;
}
resp.bad_wr = 0;
if (write(ibqp->context->cmd_fd, cmd, cmd_size) != cmd_size)
ret = errno;
(void) VALGRIND_MAKE_MEM_DEFINED(&resp, sizeof resp);
wr_count = resp.bad_wr;
if (wr_count) {
i = wr;
while (--wr_count)
i = i->next;
*bad_wr = i;
} else if (ret)
*bad_wr = wr;
return ret;
}
int ibv_cmd_post_srq_recv(struct ibv_srq *srq, struct ibv_recv_wr *wr,
struct ibv_recv_wr **bad_wr)
{
struct ibv_post_srq_recv *cmd;
struct ibv_post_srq_recv_resp resp;
struct ibv_recv_wr *i;
struct ibv_kern_recv_wr *n, *tmp;
struct ibv_sge *s;
unsigned wr_count = 0;
unsigned sge_count = 0;
int cmd_size;
int ret = 0;
for (i = wr; i; i = i->next) {
wr_count++;
sge_count += i->num_sge;
}
cmd_size = sizeof *cmd + wr_count * sizeof *n + sge_count * sizeof *s;
cmd = alloca(cmd_size);
IBV_INIT_CMD_RESP(cmd, cmd_size, POST_SRQ_RECV, &resp, sizeof resp);
cmd->srq_handle = srq->handle;
cmd->wr_count = wr_count;
cmd->sge_count = sge_count;
cmd->wqe_size = sizeof *n;
n = (struct ibv_kern_recv_wr *) ((void *) cmd + sizeof *cmd);
s = (struct ibv_sge *) (n + wr_count);
tmp = n;
for (i = wr; i; i = i->next) {
tmp->wr_id = i->wr_id;
tmp->num_sge = i->num_sge;
if (tmp->num_sge) {
memcpy(s, i->sg_list, tmp->num_sge * sizeof *s);
s += tmp->num_sge;
}
tmp++;
}
resp.bad_wr = 0;
if (write(srq->context->cmd_fd, cmd, cmd_size) != cmd_size)
ret = errno;
(void) VALGRIND_MAKE_MEM_DEFINED(&resp, sizeof resp);
wr_count = resp.bad_wr;
if (wr_count) {
i = wr;
while (--wr_count)
i = i->next;
*bad_wr = i;
} else if (ret)
*bad_wr = wr;
return ret;
}
int ibv_cmd_create_ah(struct ibv_pd *pd, struct ibv_ah *ah,
struct ibv_ah_attr *attr)
{
struct ibv_create_ah cmd;
struct ibv_create_ah_resp resp;
IBV_INIT_CMD_RESP(&cmd, sizeof cmd, CREATE_AH, &resp, sizeof resp);
cmd.user_handle = (uintptr_t) ah;
cmd.pd_handle = pd->handle;
cmd.attr.dlid = attr->dlid;
cmd.attr.sl = attr->sl;
cmd.attr.src_path_bits = attr->src_path_bits;
cmd.attr.static_rate = attr->static_rate;
cmd.attr.is_global = attr->is_global;
cmd.attr.port_num = attr->port_num;
cmd.attr.grh.flow_label = attr->grh.flow_label;
cmd.attr.grh.sgid_index = attr->grh.sgid_index;
cmd.attr.grh.hop_limit = attr->grh.hop_limit;
cmd.attr.grh.traffic_class = attr->grh.traffic_class;
memcpy(cmd.attr.grh.dgid, attr->grh.dgid.raw, 16);
if (write(pd->context->cmd_fd, &cmd, sizeof cmd) != sizeof cmd)
return errno;
(void) VALGRIND_MAKE_MEM_DEFINED(&resp, sizeof resp);
ah->handle = resp.handle;
ah->context = pd->context;
return 0;
}
int ibv_cmd_destroy_ah(struct ibv_ah *ah)
{
struct ibv_destroy_ah cmd;
IBV_INIT_CMD(&cmd, sizeof cmd, DESTROY_AH);
cmd.ah_handle = ah->handle;
if (write(ah->context->cmd_fd, &cmd, sizeof cmd) != sizeof cmd)
return errno;
return 0;
}
int ibv_cmd_destroy_qp(struct ibv_qp *qp)
{
struct ibv_destroy_qp cmd;
struct ibv_destroy_qp_resp resp;
IBV_INIT_CMD_RESP(&cmd, sizeof cmd, DESTROY_QP, &resp, sizeof resp);
cmd.qp_handle = qp->handle;
cmd.reserved = 0;
if (write(qp->context->cmd_fd, &cmd, sizeof cmd) != sizeof cmd)
return errno;
(void) VALGRIND_MAKE_MEM_DEFINED(&resp, sizeof resp);
pthread_mutex_lock(&qp->mutex);
while (qp->events_completed != resp.events_reported)
pthread_cond_wait(&qp->cond, &qp->mutex);
pthread_mutex_unlock(&qp->mutex);
return 0;
}
int ibv_cmd_attach_mcast(struct ibv_qp *qp, const union ibv_gid *gid, uint16_t lid)
{
struct ibv_attach_mcast cmd;
IBV_INIT_CMD(&cmd, sizeof cmd, ATTACH_MCAST);
memcpy(cmd.gid, gid->raw, sizeof cmd.gid);
cmd.qp_handle = qp->handle;
cmd.mlid = lid;
cmd.reserved = 0;
if (write(qp->context->cmd_fd, &cmd, sizeof cmd) != sizeof cmd)
return errno;
return 0;
}
int ibv_cmd_detach_mcast(struct ibv_qp *qp, const union ibv_gid *gid, uint16_t lid)
{
struct ibv_detach_mcast cmd;
IBV_INIT_CMD(&cmd, sizeof cmd, DETACH_MCAST);
memcpy(cmd.gid, gid->raw, sizeof cmd.gid);
cmd.qp_handle = qp->handle;
cmd.mlid = lid;
cmd.reserved = 0;
if (write(qp->context->cmd_fd, &cmd, sizeof cmd) != sizeof cmd)
return errno;
return 0;
}
static int ib_spec_to_kern_spec(struct ibv_flow_spec *ib_spec,
struct ibv_kern_spec *kern_spec)
{
kern_spec->hdr.type = ib_spec->hdr.type;
switch (ib_spec->hdr.type) {
case IBV_FLOW_SPEC_ETH:
kern_spec->eth.size = sizeof(struct ibv_kern_spec_eth);
memcpy(&kern_spec->eth.val, &ib_spec->eth.val,
sizeof(struct ibv_flow_eth_filter));
memcpy(&kern_spec->eth.mask, &ib_spec->eth.mask,
sizeof(struct ibv_flow_eth_filter));
break;
case IBV_FLOW_SPEC_IPV4:
kern_spec->ipv4.size = sizeof(struct ibv_kern_spec_ipv4);
memcpy(&kern_spec->ipv4.val, &ib_spec->ipv4.val,
sizeof(struct ibv_flow_ipv4_filter));
memcpy(&kern_spec->ipv4.mask, &ib_spec->ipv4.mask,
sizeof(struct ibv_flow_ipv4_filter));
break;
case IBV_FLOW_SPEC_TCP:
case IBV_FLOW_SPEC_UDP:
kern_spec->tcp_udp.size = sizeof(struct ibv_kern_spec_tcp_udp);
memcpy(&kern_spec->tcp_udp.val, &ib_spec->tcp_udp.val,
sizeof(struct ibv_flow_ipv4_filter));
memcpy(&kern_spec->tcp_udp.mask, &ib_spec->tcp_udp.mask,
sizeof(struct ibv_flow_tcp_udp_filter));
break;
default:
return -EINVAL;
}
return 0;
}
struct ibv_flow *ibv_cmd_create_flow(struct ibv_qp *qp,
struct ibv_flow_attr *flow_attr)
{
struct ibv_create_flow *cmd;
struct ibv_create_flow_resp resp;
struct ibv_flow *flow_id;
size_t cmd_size;
size_t written_size;
int i, err;
void *kern_spec;
void *ib_spec;
cmd_size = sizeof(*cmd) + (flow_attr->num_of_specs *
sizeof(struct ibv_kern_spec));
cmd = alloca(cmd_size);
flow_id = malloc(sizeof(*flow_id));
if (!flow_id)
return NULL;
memset(cmd, 0, cmd_size);
cmd->qp_handle = qp->handle;
cmd->flow_attr.type = flow_attr->type;
cmd->flow_attr.priority = flow_attr->priority;
cmd->flow_attr.num_of_specs = flow_attr->num_of_specs;
cmd->flow_attr.port = flow_attr->port;
cmd->flow_attr.flags = flow_attr->flags;
kern_spec = cmd + 1;
ib_spec = flow_attr + 1;
for (i = 0; i < flow_attr->num_of_specs; i++) {
err = ib_spec_to_kern_spec(ib_spec, kern_spec);
if (err)
goto err;
cmd->flow_attr.size +=
((struct ibv_kern_spec *)kern_spec)->hdr.size;
kern_spec += ((struct ibv_kern_spec *)kern_spec)->hdr.size;
ib_spec += ((struct ibv_flow_spec *)ib_spec)->hdr.size;
}
written_size = sizeof(*cmd) + cmd->flow_attr.size;
IBV_INIT_CMD_RESP_EX_VCMD(cmd, written_size, written_size, CREATE_FLOW,
&resp, sizeof(resp));
if (write(qp->context->cmd_fd, cmd, written_size) != written_size)
goto err;
(void) VALGRIND_MAKE_MEM_DEFINED(&resp, sizeof(resp));
flow_id->context = qp->context;
flow_id->handle = resp.flow_handle;
return flow_id;
err:
free(flow_id);
return NULL;
}
int ibv_cmd_destroy_flow(struct ibv_flow *flow_id)
{
struct ibv_destroy_flow cmd;
int ret = 0;
memset(&cmd, 0, sizeof(cmd));
IBV_INIT_CMD_EX(&cmd, sizeof(cmd), DESTROY_FLOW);
cmd.flow_handle = flow_id->handle;
if (write(flow_id->context->cmd_fd, &cmd, sizeof(cmd)) != sizeof(cmd))
ret = errno;
free(flow_id);
return ret;
}
int ibv_cmd_create_wq(struct ibv_context *context,
struct ibv_wq_init_attr *wq_init_attr,
struct ibv_wq *wq,
struct ibv_create_wq *cmd,
size_t cmd_core_size,
size_t cmd_size,
struct ibv_create_wq_resp *resp,
size_t resp_core_size,
size_t resp_size)
{
int err;
if (wq_init_attr->comp_mask >= IBV_WQ_INIT_ATTR_RESERVED)
return EINVAL;
IBV_INIT_CMD_RESP_EX_V(cmd, cmd_core_size, cmd_size,
CREATE_WQ, resp,
resp_core_size, resp_size);
cmd->user_handle = (uintptr_t)wq;
cmd->pd_handle = wq_init_attr->pd->handle;
cmd->cq_handle = wq_init_attr->cq->handle;
cmd->wq_type = wq_init_attr->wq_type;
cmd->max_sge = wq_init_attr->max_sge;
cmd->max_wr = wq_init_attr->max_wr;
cmd->comp_mask = 0;
err = write(context->cmd_fd, cmd, cmd_size);
if (err != cmd_size)
return errno;
(void) VALGRIND_MAKE_MEM_DEFINED(resp, resp_size);
if (resp->response_length < resp_core_size)
return EINVAL;
wq->handle = resp->wq_handle;
wq_init_attr->max_wr = resp->max_wr;
wq_init_attr->max_sge = resp->max_sge;
wq->wq_num = resp->wqn;
wq->context = context;
wq->cq = wq_init_attr->cq;
wq->pd = wq_init_attr->pd;
wq->wq_type = wq_init_attr->wq_type;
return 0;
}
int ibv_cmd_modify_wq(struct ibv_wq *wq, struct ibv_wq_attr *attr,
struct ibv_modify_wq *cmd, size_t cmd_core_size,
size_t cmd_size)
{
if (attr->attr_mask >= IBV_WQ_ATTR_RESERVED)
return EINVAL;
memset(cmd, 0, cmd_core_size);
IBV_INIT_CMD_EX(cmd, cmd_size, MODIFY_WQ);
cmd->curr_wq_state = attr->curr_wq_state;
cmd->wq_state = attr->wq_state;
cmd->wq_handle = wq->handle;
cmd->attr_mask = attr->attr_mask;
if (write(wq->context->cmd_fd, cmd, cmd_size) != cmd_size)
return errno;
if (attr->attr_mask & IBV_WQ_ATTR_STATE)
wq->state = attr->wq_state;
return 0;
}
int ibv_cmd_destroy_wq(struct ibv_wq *wq)
{
struct ibv_destroy_wq cmd;
struct ibv_destroy_wq_resp resp;
int ret = 0;
memset(&cmd, 0, sizeof(cmd));
memset(&resp, 0, sizeof(resp));
IBV_INIT_CMD_RESP_EX(&cmd, sizeof(cmd), DESTROY_WQ, &resp, sizeof(resp));
cmd.wq_handle = wq->handle;
if (write(wq->context->cmd_fd, &cmd, sizeof(cmd)) != sizeof(cmd))
return errno;
if (resp.response_length < sizeof(resp))
return EINVAL;
pthread_mutex_lock(&wq->mutex);
while (wq->events_completed != resp.events_reported)
pthread_cond_wait(&wq->cond, &wq->mutex);
pthread_mutex_unlock(&wq->mutex);
return ret;
}
int ibv_cmd_create_rwq_ind_table(struct ibv_context *context,
struct ibv_rwq_ind_table_init_attr *init_attr,
struct ibv_rwq_ind_table *rwq_ind_table,
struct ibv_create_rwq_ind_table *cmd,
size_t cmd_core_size,
size_t cmd_size,
struct ibv_create_rwq_ind_table_resp *resp,
size_t resp_core_size,
size_t resp_size)
{
int err, i;
uint32_t required_tbl_size, alloc_tbl_size;
uint32_t *tbl_start;
int num_tbl_entries;
if (init_attr->comp_mask >= IBV_CREATE_IND_TABLE_RESERVED)
return EINVAL;
alloc_tbl_size = cmd_core_size - sizeof(*cmd);
num_tbl_entries = 1 << init_attr->log_ind_tbl_size;
/* Data must be u64 aligned */
required_tbl_size = (num_tbl_entries * sizeof(uint32_t)) < sizeof(uint64_t) ?
sizeof(uint64_t) : (num_tbl_entries * sizeof(uint32_t));
if (alloc_tbl_size < required_tbl_size)
return EINVAL;
tbl_start = (uint32_t *)((uint8_t *)cmd + sizeof(*cmd));
for (i = 0; i < num_tbl_entries; i++)
tbl_start[i] = init_attr->ind_tbl[i]->handle;
IBV_INIT_CMD_RESP_EX_V(cmd, cmd_core_size, cmd_size,
CREATE_RWQ_IND_TBL, resp,
resp_core_size, resp_size);
cmd->log_ind_tbl_size = init_attr->log_ind_tbl_size;
cmd->comp_mask = 0;
err = write(context->cmd_fd, cmd, cmd_size);
if (err != cmd_size)
return errno;
(void) VALGRIND_MAKE_MEM_DEFINED(resp, resp_size);
if (resp->response_length < resp_core_size)
return EINVAL;
rwq_ind_table->ind_tbl_handle = resp->ind_tbl_handle;
rwq_ind_table->ind_tbl_num = resp->ind_tbl_num;
rwq_ind_table->context = context;
return 0;
}
int ibv_cmd_destroy_rwq_ind_table(struct ibv_rwq_ind_table *rwq_ind_table)
{
struct ibv_destroy_rwq_ind_table cmd;
int ret = 0;
memset(&cmd, 0, sizeof(cmd));
IBV_INIT_CMD_EX(&cmd, sizeof(cmd), DESTROY_RWQ_IND_TBL);
cmd.ind_tbl_handle = rwq_ind_table->ind_tbl_handle;
if (write(rwq_ind_table->context->cmd_fd, &cmd, sizeof(cmd)) != sizeof(cmd))
ret = errno;
return ret;
}