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openmpi/ompi/mca/bcol/iboffload/bcol_iboffload_qp_info.c
Pavel Shamis b89f8fabc9 Adding Hierarchical Collectives project to the Open MPI trunk.
The project includes following components and frameworks: 
- ML Collective component
- NETPATTERNS and COMMPATTERNS common components
- BCOL framework
- SBGP framework

Note: By default the ML collective component is disabled. In order to enable
new collectives user should bump up the priority of ml component (coll_ml_priority)

=============================================

Primary Contributors (in alphabetical order):

Ishai Rabinovich (Mellanox)
Joshua S. Ladd (ORNL / Mellanox)
Manjunath Gorentla Venkata (ORNL)
Mike Dubman (Mellanox)
Noam Bloch (Mellanox)
Pavel (Pasha) Shamis (ORNL / Mellanox)
Richard Graham (ORNL / Mellanox)
Vasily Filipov (Mellanox)

This commit was SVN r27078.
2012-08-16 19:11:35 +00:00

450 строки
16 KiB
C

/*
* Copyright (c) 2009-2012 Oak Ridge National Laboratory. All rights reserved.
* Copyright (c) 2009-2012 Mellanox Technologies. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include <infiniband/mqe.h>
#include <infiniband/verbs.h>
#include <infiniband/mverbs.h>
#include "bcol_iboffload_frag.h"
#include "bcol_iboffload_device.h"
#include "bcol_iboffload_qp_info.h"
#include "bcol_iboffload_collreq.h"
#include "bcol_iboffload_endpoint.h"
static int mca_bcol_iboffload_dummy_frag_qp_prepost(
mca_bcol_iboffload_endpoint_t *endpoint,
int qp_index, int num_to_prepost)
{
struct ibv_recv_wr *recv_wr, *recv_bad;
int ret, num_preposted = 0, start_wr_index;
mca_bcol_iboffload_component_t *cm = &mca_bcol_iboffload_component;
mca_bcol_iboffload_recv_wr_manager *recv_wrs = &cm->recv_wrs;
IBOFFLOAD_VERBOSE(10, ("Recv prepost call: endpoint %p, to prepost %d",
(void *) endpoint, num_to_prepost));
if (OPAL_UNLIKELY(0 == num_to_prepost)) {
IBOFFLOAD_VERBOSE(10, ("num_to_prepost = 0, return immediate"));
return OMPI_SUCCESS;
}
/* make sure that we do not overrun number of rd_wqe */
if (num_to_prepost > endpoint->qps[qp_index].rd_wqe) {
IBOFFLOAD_VERBOSE(10, ("Reset num_to_prepost = %d, to rd_wqe = %d",
num_to_prepost, endpoint->qps[qp_index].rd_wqe));
num_to_prepost = endpoint->qps[qp_index].rd_wqe;
}
OPAL_THREAD_LOCK(&recv_wrs->lock);
/* calculate start index in array
* of pre-allocated work requests */
start_wr_index = cm->qp_infos[qp_index].rd_num - num_to_prepost;
recv_wr = &recv_wrs->recv_work_requests[qp_index][start_wr_index];
IBOFFLOAD_VERBOSE(10, ("Endpoint %p, qp_index - %d, to_porepost %d, "
"start index of WRs - %d, rd_wqe - %d",
(void *) endpoint, qp_index, num_to_prepost,
start_wr_index, endpoint->qps[qp_index].rd_wqe));
while (num_preposted < num_to_prepost) {
/* prepost the special barrier frag to recv queue */
struct ibv_sge *dummy_sg_entry =
&endpoint->iboffload_module->device->dummy_frags[qp_index].sg_entry;
recv_wr[num_preposted].sg_list = dummy_sg_entry;
++num_preposted;
}
if (OPAL_LIKELY(num_preposted > 0)) {
/* Set the tail */
recv_wr[num_preposted - 1].next = NULL;
/* post the list of recvs */
ret = ibv_post_recv(endpoint->qps[qp_index].qp->lcl_qp, recv_wr, &recv_bad);
if (OPAL_UNLIKELY(0 != ret)) {
IBOFFLOAD_ERROR(("ibv_post_recv failed, error: %s [%d], "
"qp_index - %d.\n", strerror(errno), ret, qp_index));
return OMPI_ERROR;
}
/* recover last recv_wr if needed */
if (OPAL_UNLIKELY(num_to_prepost != num_preposted)) {
recv_wr[num_preposted - 1].next = &recv_wr[num_preposted];
}
/* decresing numbers of free recv wqe */
endpoint->qps[qp_index].rd_wqe -= num_preposted;
}
OPAL_THREAD_UNLOCK(&recv_wrs->lock);
IBOFFLOAD_VERBOSE(10, ("Endpoint %p, to_porepost %d, num preposted - %d, qp_index - %d",
(void *) endpoint, num_to_prepost, num_preposted, qp_index));
return OMPI_SUCCESS;
}
/*
* Receive prepost:
* return values:
* 0 - no prepost was done
* -1 - fatal error during prepost
* other value - number preposted elements
*/
static int mca_bcol_iboffload_frag_reg_qp_prepost(
mca_bcol_iboffload_endpoint_t *endpoint,
int qp_index, int num_to_prepost)
{
ompi_free_list_item_t *item;
mca_bcol_iboffload_frag_t *frag;
struct ibv_recv_wr *recv_wr, *recv_bad;
int i, ret, num_preposted = 0, start_wr_index;
mca_bcol_iboffload_component_t *cm = &mca_bcol_iboffload_component;
mca_bcol_iboffload_device_t *device = endpoint->iboffload_module->device;
opal_list_t *preposted = &(endpoint->qps[qp_index].preposted_frags);
mca_bcol_iboffload_recv_wr_manager *recv_wrs = &cm->recv_wrs;
IBOFFLOAD_VERBOSE(10, ("Recv prepost call: endpoint %p, to prepost %d",
(void *) endpoint, num_to_prepost));
if (OPAL_UNLIKELY(0 == num_to_prepost)) {
IBOFFLOAD_VERBOSE(10, ("num_to_prepost = 0, return immediate"));
return OMPI_SUCCESS;
}
/* make sure that we do not overrun number of rd_wqe */
if (num_to_prepost > endpoint->qps[qp_index].rd_wqe) {
IBOFFLOAD_VERBOSE(10, ("Reset num_to_prepost = %d, to rd_wqe = %d",
num_to_prepost, endpoint->qps[qp_index].rd_wqe));
num_to_prepost = endpoint->qps[qp_index].rd_wqe;
}
OPAL_THREAD_LOCK(&recv_wrs->lock);
/* calculate start index in array
* of pre-allocated work requests */
start_wr_index = cm->qp_infos[qp_index].rd_num - num_to_prepost;
recv_wr = &recv_wrs->recv_work_requests[qp_index][start_wr_index];
IBOFFLOAD_VERBOSE(10, ("Endpoint %p, qp_index - %d, to_porepost %d, "
"start index of WRs - %d, rd_wqe - %d",
(void *) endpoint, qp_index, num_to_prepost,
start_wr_index, endpoint->qps[qp_index].rd_wqe));
while (num_preposted < num_to_prepost) {
/* put the item on list of preposted */
OMPI_FREE_LIST_GET(&device->frags_free[qp_index], item, ret);
if (OPAL_UNLIKELY(NULL == item)) {
break;
}
frag = (mca_bcol_iboffload_frag_t *) item;
opal_list_append(preposted, (opal_list_item_t *) item);
recv_wr[num_preposted].sg_list = &frag->sg_entry;
/* TODO Pasha - fix it later */ /* Vasily: Is it right place to take a size value ???? */
frag->sg_entry.length = cm->qp_infos[qp_index].size;
++num_preposted;
}
if (OPAL_LIKELY(num_preposted > 0)) {
/* Set the tail */
recv_wr[num_preposted - 1].next = NULL;
/* post the list of recvs */
ret = ibv_post_recv(endpoint->qps[qp_index].qp->lcl_qp, recv_wr, &recv_bad);
if (OPAL_UNLIKELY(0 != ret)) {
IBOFFLOAD_ERROR(("ibv_post_recv failed (%s), error: %s [%d], "
"qp_index - %d.\n",
ibv_get_device_name(device->dev.ib_dev),
strerror(errno), ret, qp_index));
/* Return allocated frags */
for (i = 0; i < num_preposted; i++) {
OMPI_FREE_LIST_RETURN(&device->frags_free[qp_index],
(ompi_free_list_item_t *)
opal_list_remove_last(preposted));
}
return OMPI_ERROR;
}
/* recover last recv_wr if needed */
if (OPAL_UNLIKELY(num_to_prepost != num_preposted)) {
recv_wr[num_preposted - 1].next = &recv_wr[num_preposted];
}
/* decresing numbers of free recv wqe */
endpoint->qps[qp_index].rd_wqe -= num_preposted;
}
OPAL_THREAD_UNLOCK(&recv_wrs->lock);
IBOFFLOAD_VERBOSE(10, ("Endpoint %p, to_porepost %d, num preposted - %d",
(void *) endpoint, num_to_prepost, num_preposted));
return OMPI_SUCCESS;
}
static void mca_bcol_iboffload_fillin_qp_attr(int qp_index,
mca_bcol_iboffload_endpoint_t *ep,
ompi_common_ofacm_base_qp_config_t *qp_config)
{
uint32_t max_sge, *init_attr_mask =
&qp_config->init_attr_mask[qp_index];
struct ibv_qp_attr *attr = &qp_config->attr[qp_index];
struct ibv_qp_init_attr *init_attr = &qp_config->init_attr[qp_index];
mca_bcol_iboffload_component_t *cm = &mca_bcol_iboffload_component;
/* Set special init attributes mask */
*init_attr_mask = IBV_M_QP_EXT_CLASS_1 |
IBV_M_QP_EXT_CLASS_2 |
IBV_M_QP_EXT_IGNORE_RQ_OVERFLOW;
/* Set init attributes */
init_attr->qp_type = IBV_QPT_RC;
/* Vasily: ??????
init_attr->cap.max_inline_data =
max_inline_size(qp, iboffload_module->device);
*/
/* Pasha: we can not leave max_inline empty !
Todo: copy max_inline_size() from ofacm to
common area.
*/
init_attr->cap.max_inline_data = cm->max_inline_data;
/* We allocate SG list for some algorithms (Bruck's alltoall) */
max_sge = ep->iboffload_module->group_size / 2 +
ep->iboffload_module->group_size % 2;
/* max send sge should be less than device maximums */
if (max_sge > (uint32_t)
ep->iboffload_module->device->ib_dev_attr.max_sge) {
max_sge = (uint32_t) ep->iboffload_module->device->ib_dev_attr.max_sge;
}
init_attr->cap.max_send_sge = max_sge;
init_attr->cap.max_recv_sge = max_sge;
/* Vasily: the value will be changed later */
/* TODO Pasha: this is real crap */
init_attr->cap.max_recv_wr = cm->cq_size;
init_attr->cap.max_send_wr = cm->cq_size;
/* Set attributes */
/* attr->pkey_index = 0; */ /* Vasily: ????? */
attr->port_num = ep->iboffload_module->port;
/* Vasily: the value will be changed later */
attr->path_mtu = cm->mtu;
attr->max_dest_rd_atomic = cm->max_rdma_dst_ops;
attr->min_rnr_timer = cm->min_rnr_timer;
attr->ah_attr.is_global = 0;
attr->ah_attr.sl = cm->service_level;
/* Vasily: from struct mca_bcol_iboffload_port_t ????? */
/*
attr->ah_attr.src_path_bits = iboffload_module->src_path_bits;
*/
attr->ah_attr.port_num = ep->iboffload_module->port;
/* JMS to be filled in later dynamically */
attr->ah_attr.static_rate = 0;
/* RTS params */
attr->timeout = cm->timeout;
attr->retry_cnt = cm->retry_count;
attr->rnr_retry = cm->rnr_retry;
attr->max_rd_atomic = cm->max_rdma_dst_ops;
/* Init for local mca_bcol_iboffload_endpoint_qp_t qps structure
* that caches the qp information on endpoint */
OBJ_CONSTRUCT(&ep->qps[qp_index].preposted_frags, opal_list_t);
/* Pasha: Need to add function that will */
ep->qps[qp_index].ib_inline_max = cm->max_inline_data;
/* TODO Pasha - this is crap too... we do not have info for sevice qps. Fix it later */
ep->qps[qp_index].sd_wqe = cm->qp_infos[qp_index].rd_num;
ep->qps[qp_index].rd_wqe = cm->qp_infos[qp_index].rd_num;
IBOFFLOAD_VERBOSE(10, ("ep - %p, qp index - %d, num of rd_wqe - %d.",
ep, qp_index, ep->qps[qp_index].rd_wqe));
}
static int mca_bcol_iboffload_alloc_reg_qp_resource(int qp_index, mca_bcol_iboffload_device_t *device)
{
int length;
mca_bcol_iboffload_component_t *cm = &mca_bcol_iboffload_component;
ompi_free_list_t *frags_free = &device->frags_free[qp_index];
OBJ_CONSTRUCT(frags_free, ompi_free_list_t);
length = cm->qp_infos[qp_index].size;
IBOFFLOAD_VERBOSE(10, ("free list len %d\n", length));
if (OMPI_SUCCESS != ompi_free_list_init_ex_new(frags_free,
sizeof(mca_bcol_iboffload_frag_t), MCA_IBOFFLOAD_CACHE_LINE_SIZE,
OBJ_CLASS(mca_bcol_iboffload_frag_t),
length, cm->buffer_alignment,
cm->free_list_num,
cm->free_list_max,
cm->free_list_inc,
device->mpool,
mca_bcol_iboffload_frag_init,
(void *) &cm->qp_infos[qp_index].qp_index)) {
IBOFFLOAD_ERROR(("Failed to allocate frags_free"));
return OMPI_ERROR;
}
return OMPI_SUCCESS;
}
static int mca_bcol_iboffload_dealloc_reg_qp_resource(int qp_index, mca_bcol_iboffload_device_t *device)
{
OBJ_DESTRUCT(&device->frags_free[qp_index]);
return OMPI_SUCCESS;
}
static mca_bcol_iboffload_frag_t *mca_bcol_iboffload_get_dummy_frag(
mca_bcol_iboffload_endpoint_t *ep, int qp_index)
{
return &ep->iboffload_module->device->dummy_frags[qp_index];
}
static mca_bcol_iboffload_frag_t *mca_bcol_iboffload_endpoint_get_preposted_frag(
mca_bcol_iboffload_endpoint_t *ep, int qp_index)
{
return (mca_bcol_iboffload_frag_t *)
opal_list_remove_first(&ep->qps[qp_index].preposted_frags);
}
static void mca_bcol_iboffload_regular_qp_attr(int qp_index,
mca_bcol_iboffload_endpoint_t *ep,
ompi_common_ofacm_base_qp_config_t *qp_config)
{
struct ibv_qp_init_attr *init_attr = &qp_config->init_attr[qp_index];
mca_bcol_iboffload_fillin_qp_attr(qp_index, ep, qp_config);
init_attr->send_cq = ep->iboffload_module->device->ib_cq;
init_attr->recv_cq = ep->recv_cq[IBOFFLOAD_CQ_SMALL_MESSAGES];
}
static void mca_bcol_iboffload_large_buff_qp_attr(int qp_index,
mca_bcol_iboffload_endpoint_t *ep,
ompi_common_ofacm_base_qp_config_t *qp_config)
{
struct ibv_qp_init_attr *init_attr = &qp_config->init_attr[qp_index];
mca_bcol_iboffload_fillin_qp_attr(qp_index, ep, qp_config);
init_attr->send_cq = ep->iboffload_module->device->ib_cq;
init_attr->recv_cq = ep->recv_cq[IBOFFLOAD_CQ_LARGE_MESSAGES];
}
static void mca_bcol_iboffload_sync_qp_attr(int qp_index,
mca_bcol_iboffload_endpoint_t *ep,
ompi_common_ofacm_base_qp_config_t *qp_config)
{
struct ibv_qp_init_attr *init_attr = &qp_config->init_attr[qp_index];
mca_bcol_iboffload_fillin_qp_attr(qp_index, ep, qp_config);
init_attr->send_cq = ep->iboffload_module->device->ib_cq;
init_attr->recv_cq = ep->recv_cq[IBOFFLOAD_CQ_SYNC];
}
static int mca_bcol_iboffload_setup_barrier_qp(mca_bcol_iboffload_qp_info_t* qp_info)
{
qp_info->config_qp = mca_bcol_iboffload_regular_qp_attr;
qp_info->prepost_recv = mca_bcol_iboffload_dummy_frag_qp_prepost;
qp_info->alloc_resource = NULL;
qp_info->dealloc_resource = NULL;
qp_info->get_preposted_recv = mca_bcol_iboffload_get_dummy_frag;
return OMPI_SUCCESS;
}
static int mca_bcol_iboffload_setup_regular_qp(mca_bcol_iboffload_qp_info_t* qp_info)
{
qp_info->config_qp = mca_bcol_iboffload_regular_qp_attr;
qp_info->prepost_recv = mca_bcol_iboffload_frag_reg_qp_prepost;
qp_info->alloc_resource = mca_bcol_iboffload_alloc_reg_qp_resource;
qp_info->dealloc_resource = mca_bcol_iboffload_dealloc_reg_qp_resource;
qp_info->get_preposted_recv = mca_bcol_iboffload_endpoint_get_preposted_frag;
return OMPI_SUCCESS;
}
static int mca_bcol_iboffload_setup_large_buff_qp(mca_bcol_iboffload_qp_info_t* qp_info)
{
qp_info->config_qp = mca_bcol_iboffload_large_buff_qp_attr;
qp_info->prepost_recv = NULL; /* We use "manual" ML frag preposting for this QP */
qp_info->alloc_resource = NULL;
qp_info->dealloc_resource = NULL;
qp_info->get_preposted_recv = NULL;
return OMPI_SUCCESS;
}
static int mca_bcol_iboffload_setup_credit_qp(mca_bcol_iboffload_qp_info_t* qp_info)
{
qp_info->config_qp = mca_bcol_iboffload_large_buff_qp_attr;
qp_info->prepost_recv = mca_bcol_iboffload_dummy_frag_qp_prepost;
qp_info->alloc_resource = NULL;
qp_info->dealloc_resource = NULL;
qp_info->get_preposted_recv = mca_bcol_iboffload_get_dummy_frag;
return OMPI_SUCCESS;
}
static int mca_bcol_iboffload_setup_sync_qp(mca_bcol_iboffload_qp_info_t* qp_info)
{
qp_info->config_qp = mca_bcol_iboffload_sync_qp_attr;
qp_info->prepost_recv = mca_bcol_iboffload_dummy_frag_qp_prepost;
qp_info->alloc_resource = NULL;
qp_info->dealloc_resource = NULL;
qp_info->get_preposted_recv = mca_bcol_iboffload_get_dummy_frag;
return OMPI_SUCCESS;
}
mca_bcol_iboffload_setup_qps_fn_t setup_qps_fn[MCA_BCOL_IBOFFLOAD_QP_LAST] = {
mca_bcol_iboffload_setup_barrier_qp, /* MCA_BCOL_IBOFFLOAD_QP_BARRIER */
mca_bcol_iboffload_setup_regular_qp, /* MCA_BCOL_IBOFFLOAD_QP_REGULAR */
mca_bcol_iboffload_setup_sync_qp, /* MCA_BCOL_IBOFFLOAD_QP_SYNC */
mca_bcol_iboffload_setup_credit_qp, /* MCA_BCOL_IBOFFLOAD_QP_CREDIT */
mca_bcol_iboffload_setup_large_buff_qp, /* MCA_BCOL_IBOFFLOAD_QP_LARGE_BUFF */
/* MCA_BCOL_IBOFFLOAD_QP_LAST */
};