682 строки
28 KiB
C
682 строки
28 KiB
C
/*
|
|
* Copyright (c) 2004-2005 The Trustees of Indiana University.
|
|
* All rights reserved.
|
|
* Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
|
|
* All rights reserved.
|
|
* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
|
|
* University of Stuttgart. All rights reserved.
|
|
* Copyright (c) 2004-2005 The Regents of the University of California.
|
|
* All rights reserved.
|
|
* $COPYRIGHT$
|
|
*
|
|
* Additional copyrights may follow
|
|
*
|
|
* $HEADER$
|
|
*/
|
|
|
|
|
|
#include "ompi_config.h"
|
|
#include "ompi/include/constants.h"
|
|
#include "opal/event/event.h"
|
|
#include "opal/util/if.h"
|
|
#include "opal/util/argv.h"
|
|
#include "opal/util/output.h"
|
|
#include "mca/pml/pml.h"
|
|
#include "mca/btl/btl.h"
|
|
|
|
#include "mca/base/mca_base_param.h"
|
|
#include "mca/errmgr/errmgr.h"
|
|
#include "mca/mpool/base/base.h"
|
|
#include "btl_openib.h"
|
|
#include "btl_openib_frag.h"
|
|
#include "btl_openib_endpoint.h"
|
|
#include "mca/btl/base/base.h"
|
|
#include "mca/btl/base/btl_base_error.h"
|
|
|
|
|
|
#include "datatype/convertor.h"
|
|
#include "mca/mpool/mpool.h"
|
|
#include <sysfs/libsysfs.h>
|
|
#include <infiniband/verbs.h>
|
|
#include <errno.h>
|
|
#include <string.h> /* for strerror()*/
|
|
|
|
#include "mca/pml/base/pml_base_module_exchange.h"
|
|
|
|
mca_btl_openib_component_t mca_btl_openib_component = {
|
|
{
|
|
/* First, the mca_base_component_t struct containing meta information
|
|
about the component itself */
|
|
|
|
{
|
|
/* Indicate that we are a pml v1.0.0 component (which also implies a
|
|
specific MCA version) */
|
|
|
|
MCA_BTL_BASE_VERSION_1_0_0,
|
|
|
|
"openib", /* MCA component name */
|
|
OMPI_MAJOR_VERSION, /* MCA component major version */
|
|
OMPI_MINOR_VERSION, /* MCA component minor version */
|
|
OMPI_RELEASE_VERSION, /* MCA component release version */
|
|
mca_btl_openib_component_open, /* component open */
|
|
mca_btl_openib_component_close /* component close */
|
|
},
|
|
|
|
/* Next the MCA v1.0.0 component meta data */
|
|
|
|
{
|
|
/* Whether the component is checkpointable or not */
|
|
|
|
false
|
|
},
|
|
|
|
mca_btl_openib_component_init,
|
|
mca_btl_openib_component_progress,
|
|
}
|
|
};
|
|
|
|
|
|
/*
|
|
* utility routines for parameter registration
|
|
*/
|
|
|
|
static inline void mca_btl_openib_param_register_string(
|
|
const char* param_name,
|
|
const char* param_desc,
|
|
const char* default_value,
|
|
char** out_value)
|
|
{
|
|
mca_base_param_reg_string(&mca_btl_openib_component.super.btl_version,
|
|
param_name,
|
|
param_desc,
|
|
false,
|
|
false,
|
|
default_value,
|
|
out_value);
|
|
}
|
|
|
|
static inline void mca_btl_openib_param_register_int(
|
|
const char* param_name,
|
|
const char* param_desc,
|
|
int default_value,
|
|
int* out_value)
|
|
{
|
|
mca_base_param_reg_int(&mca_btl_openib_component.super.btl_version,
|
|
param_name,
|
|
param_desc,
|
|
false,
|
|
false,
|
|
default_value,
|
|
out_value);
|
|
}
|
|
|
|
/*
|
|
* Called by MCA framework to open the component, registers
|
|
* component parameters.
|
|
*/
|
|
|
|
int mca_btl_openib_component_open(void)
|
|
{
|
|
|
|
int param, value;
|
|
|
|
/* initialize state */
|
|
mca_btl_openib_component.ib_num_btls=0;
|
|
mca_btl_openib_component.openib_btls=NULL;
|
|
|
|
/* initialize objects */
|
|
OBJ_CONSTRUCT(&mca_btl_openib_component.ib_procs, opal_list_t);
|
|
|
|
/* register IB component parameters */
|
|
mca_btl_openib_param_register_int ("free_list_num", "intial size of free lists",
|
|
8, &mca_btl_openib_component.ib_free_list_num);
|
|
mca_btl_openib_param_register_int ("free_list_max", "maximum size of free lists",
|
|
1024, &mca_btl_openib_component.ib_free_list_max);
|
|
mca_btl_openib_param_register_int ("free_list_inc", "increment size of free lists",
|
|
32, &mca_btl_openib_component.ib_free_list_inc);
|
|
mca_btl_openib_param_register_string("mpool", "name of the memory pool to be used",
|
|
"openib", &mca_btl_openib_component.ib_mpool_name);
|
|
mca_btl_openib_param_register_int("rd_max", "maximum number of receive descriptors to post to a QP",
|
|
16, (int*) &mca_btl_openib_component.ib_rr_buf_max);
|
|
mca_btl_openib_param_register_int("rd_min", "minimum number of receive descriptors before reposting occurs",
|
|
8, (int*) &mca_btl_openib_component.ib_rr_buf_min);
|
|
mca_btl_openib_param_register_int("reg_mru_len", "length of the registration cache most recently used list",
|
|
16, (int*) &mca_btl_openib_component.reg_mru_len);
|
|
mca_btl_openib_param_register_int("use_srq", "if 1 use the IB shared receive queue to post receive descriptors",
|
|
0, (int*) &mca_btl_openib_component.use_srq);
|
|
mca_btl_openib_param_register_int("ib_cq_size", "size of the IB completion queue",
|
|
500, (int*) &mca_btl_openib_component.ib_cq_size);
|
|
mca_btl_openib_param_register_int("ib_wq_size", "size of the IB work queue",
|
|
500, (int*) &mca_btl_openib_component.ib_wq_size);
|
|
mca_btl_openib_param_register_int("ib_sg_list_size", "size of IB segment list",
|
|
1, (int*) &mca_btl_openib_component.ib_sg_list_size);
|
|
mca_btl_openib_param_register_int("ib_pkey_ix", "IB pkey index",
|
|
0, (int*) &mca_btl_openib_component.ib_pkey_ix);
|
|
mca_btl_openib_param_register_int("ib_psn", "IB Packet sequence starting number",
|
|
0, (int*) &mca_btl_openib_component.ib_psn);
|
|
mca_btl_openib_param_register_int("ib_qp_ous_rd_atom", "IB outstanding atomic reads",
|
|
1, (int*) &mca_btl_openib_component.ib_qp_ous_rd_atom);
|
|
mca_btl_openib_param_register_int("ib_mtu", "IB MTU",
|
|
IBV_MTU_1024, (int*) &mca_btl_openib_component.ib_mtu);
|
|
mca_btl_openib_param_register_int("ib_min_rnr_timer", "IB min rnr timer",
|
|
5, (int*) &mca_btl_openib_component.ib_min_rnr_timer);
|
|
mca_btl_openib_param_register_int("ib_timeout", "IB transmit timeout",
|
|
10, (int*) &mca_btl_openib_component.ib_timeout);
|
|
mca_btl_openib_param_register_int("ib_retry_count", "IB transmit retry count",
|
|
7, (int*) &mca_btl_openib_component.ib_retry_count);
|
|
mca_btl_openib_param_register_int("ib_rnr_retry", "IB rnr retry",
|
|
7, (int*) mca_btl_openib_component.ib_rnr_retry);
|
|
mca_btl_openib_param_register_int("ib_max_rdma_dst_ops", "IB max rdma destination operations",
|
|
16, (int*) &mca_btl_openib_component.ib_max_rdma_dst_ops);
|
|
mca_btl_openib_param_register_int("ib_service_level", "IB service level",
|
|
0, (int*) &mca_btl_openib_component.ib_service_level);
|
|
mca_btl_openib_param_register_int("ib_static_rate", "IB static rate",
|
|
0, (int*) &mca_btl_openib_component.ib_static_rate);
|
|
mca_btl_openib_param_register_int("ib_src_path_bits", "IB source path bits",
|
|
0, (int*) &mca_btl_openib_component.ib_src_path_bits);
|
|
mca_btl_openib_param_register_int("rd_per_peer", "receive descriptors posted per peer, SRQ mode only",
|
|
16, (int*) &mca_btl_openib_component.rd_per_peer);
|
|
mca_btl_openib_param_register_int ("exclusivity", "BTL exclusivity",
|
|
MCA_BTL_EXCLUSIVITY_DEFAULT, (int*) &mca_btl_openib_module.super.btl_exclusivity);
|
|
mca_btl_openib_param_register_int ("eager_limit", "eager send limit",
|
|
(64*1024),(int*) &mca_btl_openib_module.super.btl_eager_limit);
|
|
mca_btl_openib_module.super.btl_eager_limit -= sizeof(mca_btl_openib_header_t);
|
|
mca_btl_openib_param_register_int ("min_send_size", "minimum send size",
|
|
(64*1024),(int*) &mca_btl_openib_module.super.btl_min_send_size);
|
|
mca_btl_openib_module.super.btl_min_send_size -= sizeof(mca_btl_openib_header_t);
|
|
mca_btl_openib_param_register_int ("max_send_size", "maximum send size",
|
|
(128*1024), (int*) &mca_btl_openib_module.super.btl_max_send_size);
|
|
mca_btl_openib_module.super.btl_max_send_size -= sizeof(mca_btl_openib_header_t);
|
|
mca_btl_openib_param_register_int("min_rdma_size", "minimum rdma size",
|
|
1024*1024, (int*) &mca_btl_openib_module.super.btl_min_rdma_size);
|
|
mca_btl_openib_param_register_int("max_rdma_size", "maximium rdma size",
|
|
1024*1024, (int*) &mca_btl_openib_module.super.btl_max_rdma_size);
|
|
mca_btl_openib_param_register_int("flags", "BTL flags, SEND=0, PUT=1, GET=2",
|
|
MCA_BTL_FLAGS_PUT, (int*) &mca_btl_openib_module.super.btl_flags);
|
|
|
|
|
|
param = mca_base_param_find("mpi", NULL, "leave_pinned");
|
|
mca_base_param_lookup_int(param, &value);
|
|
mca_btl_openib_component.leave_pinned = value;
|
|
|
|
mca_btl_openib_component.max_send_size = mca_btl_openib_module.super.btl_max_send_size;
|
|
mca_btl_openib_component.eager_limit = mca_btl_openib_module.super.btl_eager_limit;
|
|
|
|
return OMPI_SUCCESS;
|
|
}
|
|
|
|
/*
|
|
* component cleanup - sanity checking of queue lengths
|
|
*/
|
|
|
|
int mca_btl_openib_component_close(void)
|
|
{
|
|
return OMPI_SUCCESS;
|
|
}
|
|
|
|
|
|
/*
|
|
* Register OPENIB port information. The MCA framework
|
|
* will make this available to all peers.
|
|
*/
|
|
|
|
static int
|
|
mca_btl_openib_modex_send(void)
|
|
{
|
|
int rc;
|
|
size_t i;
|
|
size_t size;
|
|
mca_btl_openib_port_info_t *ports = NULL;
|
|
|
|
size = mca_btl_openib_component.ib_num_btls * sizeof (mca_btl_openib_port_info_t);
|
|
if (size != 0) {
|
|
ports = (mca_btl_openib_port_info_t *)malloc (size);
|
|
if (NULL == ports) {
|
|
return OMPI_ERR_OUT_OF_RESOURCE;
|
|
}
|
|
|
|
for (i = 0; i < mca_btl_openib_component.ib_num_btls; i++) {
|
|
mca_btl_openib_module_t *btl = &mca_btl_openib_component.openib_btls[i];
|
|
ports[i] = btl->port_info;
|
|
}
|
|
}
|
|
rc = mca_pml_base_modex_send (&mca_btl_openib_component.super.btl_version, ports, size);
|
|
if (NULL != ports) {
|
|
free (ports);
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
|
|
/*
|
|
* IB component initialization:
|
|
* (1) read interface list from kernel and compare against component parameters
|
|
* then create a BTL instance for selected interfaces
|
|
* (2) setup IB listen socket for incoming connection attempts
|
|
* (3) register BTL parameters with the MCA
|
|
*/
|
|
|
|
mca_btl_base_module_t** mca_btl_openib_component_init(int *num_btl_modules,
|
|
bool enable_progress_threads,
|
|
bool enable_mpi_threads)
|
|
{
|
|
struct ibv_device **ib_devs;
|
|
uint32_t num_devs;
|
|
mca_btl_base_module_t** btls;
|
|
uint32_t i,j, length;
|
|
struct mca_mpool_base_resources_t mpool_resources;
|
|
opal_list_t btl_list;
|
|
mca_btl_openib_module_t * openib_btl;
|
|
mca_btl_base_selected_module_t* ib_selected;
|
|
opal_list_item_t* item;
|
|
struct dlist *dev_list;
|
|
|
|
struct ibv_device* ib_dev;
|
|
|
|
|
|
/* initialization */
|
|
*num_btl_modules = 0;
|
|
num_devs = 0;
|
|
|
|
|
|
/* Determine the number of hca's available on the host */
|
|
dev_list = ibv_get_devices();
|
|
if (NULL == dev_list) {
|
|
mca_btl_base_error_no_nics("OpenIB", "HCA");
|
|
mca_btl_openib_component.ib_num_btls = 0;
|
|
mca_btl_openib_modex_send();
|
|
return NULL;
|
|
}
|
|
dlist_start(dev_list);
|
|
|
|
dlist_for_each_data(dev_list, ib_dev, struct ibv_device)
|
|
num_devs++;
|
|
|
|
if(0 == num_devs) {
|
|
mca_btl_base_error_no_nics("OpenIB", "HCA");
|
|
mca_btl_openib_modex_send();
|
|
return NULL;
|
|
}
|
|
|
|
|
|
/* Allocate space for the ib devices */
|
|
ib_devs = (struct ibv_device**) malloc(num_devs * sizeof(struct ibv_dev*));
|
|
if(NULL == ib_devs) {
|
|
ORTE_ERROR_LOG(ORTE_ERR_OUT_OF_RESOURCE);
|
|
return NULL;
|
|
}
|
|
|
|
dlist_start(dev_list);
|
|
|
|
i = 0;
|
|
dlist_for_each_data(dev_list, ib_dev, struct ibv_device)
|
|
ib_devs[i++] = ib_dev;
|
|
|
|
|
|
/** We must loop through all the hca id's, get there handles and
|
|
for each hca we query the number of ports on the hca and set up
|
|
a distinct btl module for each hca port */
|
|
|
|
OBJ_CONSTRUCT(&btl_list, opal_list_t);
|
|
OBJ_CONSTRUCT(&mca_btl_openib_component.ib_lock, opal_mutex_t);
|
|
|
|
|
|
for(i = 0; i < num_devs; i++){
|
|
struct ibv_device_attr ib_dev_attr;
|
|
struct ibv_context* ib_dev_context;
|
|
|
|
ib_dev = ib_devs[i];
|
|
|
|
ib_dev_context = ibv_open_device(ib_dev);
|
|
if(!ib_dev_context) {
|
|
BTL_ERROR((" error obtaining device context for %s errno says %s\n", ibv_get_device_name(ib_dev), strerror(errno)));
|
|
return NULL;
|
|
}
|
|
|
|
if(ibv_query_device(ib_dev_context, &ib_dev_attr)){
|
|
BTL_ERROR(("error obtaining device attributes for %s errno says %s\n", ibv_get_device_name(ib_dev), strerror(errno)));
|
|
return NULL;
|
|
}
|
|
|
|
|
|
/* Note ports are 1 based hence j = 1 */
|
|
|
|
for(j = 1; j <= ib_dev_attr.phys_port_cnt; j++){
|
|
struct ibv_port_attr* ib_port_attr;
|
|
ib_port_attr = (struct ibv_port_attr*) malloc(sizeof(struct ibv_port_attr));
|
|
if(ibv_query_port(ib_dev_context, (uint8_t) j, ib_port_attr)){
|
|
BTL_ERROR(("error getting port attributes for device %s port number %d errno says %s",
|
|
ibv_get_device_name(ib_dev), j, strerror(errno)));
|
|
return NULL;
|
|
}
|
|
|
|
if( IBV_PORT_ACTIVE == ib_port_attr->state ){
|
|
|
|
openib_btl = (mca_btl_openib_module_t*) malloc(sizeof(mca_btl_openib_module_t));
|
|
memcpy(openib_btl, &mca_btl_openib_module, sizeof(mca_btl_openib_module));
|
|
|
|
ib_selected = OBJ_NEW(mca_btl_base_selected_module_t);
|
|
ib_selected->btl_module = (mca_btl_base_module_t*) openib_btl;
|
|
openib_btl->ib_dev = ib_dev;
|
|
openib_btl->ib_dev_context = ib_dev_context;
|
|
openib_btl->port_num = (uint8_t) j;
|
|
openib_btl->ib_port_attr = ib_port_attr;
|
|
openib_btl->port_info.subnet = ib_port_attr->sm_lid; /* store the sm_lid for multi-nic support */
|
|
opal_list_append(&btl_list, (opal_list_item_t*) ib_selected);
|
|
mca_btl_openib_component.ib_num_btls ++;
|
|
|
|
}
|
|
else{
|
|
free(ib_port_attr);
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
|
|
/* Allocate space for btl modules */
|
|
mca_btl_openib_component.openib_btls = (mca_btl_openib_module_t*) malloc(sizeof(mca_btl_openib_module_t) *
|
|
mca_btl_openib_component.ib_num_btls);
|
|
|
|
if(NULL == mca_btl_openib_component.openib_btls) {
|
|
ORTE_ERROR_LOG(ORTE_ERR_OUT_OF_RESOURCE);
|
|
return NULL;
|
|
}
|
|
btls = (struct mca_btl_base_module_t**)
|
|
malloc(mca_btl_openib_component.ib_num_btls * sizeof(struct mca_btl_openib_module_t*));
|
|
if(NULL == btls) {
|
|
ORTE_ERROR_LOG(ORTE_ERR_OUT_OF_RESOURCE);
|
|
return NULL;
|
|
}
|
|
|
|
|
|
|
|
for(i = 0; i < mca_btl_openib_component.ib_num_btls; i++){
|
|
item = opal_list_remove_first(&btl_list);
|
|
ib_selected = (mca_btl_base_selected_module_t*)item;
|
|
openib_btl = (mca_btl_openib_module_t*) ib_selected->btl_module;
|
|
memcpy(&(mca_btl_openib_component.openib_btls[i]), openib_btl , sizeof(mca_btl_openib_module_t));
|
|
free(ib_selected);
|
|
free(openib_btl);
|
|
|
|
openib_btl = &mca_btl_openib_component.openib_btls[i];
|
|
|
|
/* Initialize module state */
|
|
|
|
OBJ_CONSTRUCT(&openib_btl->ib_lock, opal_mutex_t);
|
|
OBJ_CONSTRUCT(&openib_btl->send_free_eager, ompi_free_list_t);
|
|
OBJ_CONSTRUCT(&openib_btl->send_free_max, ompi_free_list_t);
|
|
OBJ_CONSTRUCT(&openib_btl->send_free_frag, ompi_free_list_t);
|
|
|
|
OBJ_CONSTRUCT(&openib_btl->recv_free_eager, ompi_free_list_t);
|
|
OBJ_CONSTRUCT(&openib_btl->recv_free_max, ompi_free_list_t);
|
|
|
|
|
|
OBJ_CONSTRUCT(&openib_btl->repost, opal_list_t);
|
|
OBJ_CONSTRUCT(&openib_btl->reg_mru_list, opal_list_t);
|
|
|
|
|
|
|
|
if(mca_btl_openib_module_init(openib_btl) != OMPI_SUCCESS) {
|
|
free(ib_devs);
|
|
return NULL;
|
|
}
|
|
|
|
mpool_resources.ib_pd = openib_btl->ib_pd;
|
|
|
|
/* initialize the memory pool using the hca */
|
|
openib_btl->super.btl_mpool =
|
|
mca_mpool_base_module_create(mca_btl_openib_component.ib_mpool_name,
|
|
&openib_btl->super,
|
|
&mpool_resources);
|
|
|
|
if(NULL == openib_btl->super.btl_mpool) {
|
|
BTL_ERROR(("error creating vapi memory pool! aborting openib btl initialization"));
|
|
return NULL;
|
|
}
|
|
|
|
/* Initialize pool of send fragments */
|
|
length = sizeof(mca_btl_openib_frag_t) +
|
|
sizeof(mca_btl_openib_header_t) +
|
|
openib_btl->super.btl_eager_limit+
|
|
2*MCA_BTL_IB_FRAG_ALIGN;
|
|
|
|
ompi_free_list_init(&openib_btl->send_free_eager,
|
|
length,
|
|
OBJ_CLASS(mca_btl_openib_send_frag_eager_t),
|
|
mca_btl_openib_component.ib_free_list_num,
|
|
mca_btl_openib_component.ib_free_list_max,
|
|
mca_btl_openib_component.ib_free_list_inc,
|
|
openib_btl->super.btl_mpool);
|
|
|
|
ompi_free_list_init(&openib_btl->recv_free_eager,
|
|
length,
|
|
OBJ_CLASS(mca_btl_openib_recv_frag_eager_t),
|
|
mca_btl_openib_component.ib_free_list_num,
|
|
mca_btl_openib_component.ib_free_list_max,
|
|
mca_btl_openib_component.ib_free_list_inc,
|
|
openib_btl->super.btl_mpool);
|
|
|
|
|
|
|
|
length = sizeof(mca_btl_openib_frag_t) +
|
|
sizeof(mca_btl_openib_header_t) +
|
|
openib_btl->super.btl_max_send_size +
|
|
2*MCA_BTL_IB_FRAG_ALIGN;
|
|
|
|
|
|
ompi_free_list_init(&openib_btl->send_free_max,
|
|
length,
|
|
OBJ_CLASS(mca_btl_openib_send_frag_max_t),
|
|
mca_btl_openib_component.ib_free_list_num,
|
|
mca_btl_openib_component.ib_free_list_max,
|
|
mca_btl_openib_component.ib_free_list_inc,
|
|
openib_btl->super.btl_mpool);
|
|
|
|
/* Initialize pool of receive fragments */
|
|
ompi_free_list_init (&openib_btl->recv_free_max,
|
|
length,
|
|
OBJ_CLASS (mca_btl_openib_recv_frag_max_t),
|
|
mca_btl_openib_component.ib_free_list_num,
|
|
mca_btl_openib_component.ib_free_list_max,
|
|
mca_btl_openib_component.ib_free_list_inc, openib_btl->super.btl_mpool);
|
|
|
|
|
|
|
|
length = sizeof(mca_btl_openib_frag_t) +
|
|
sizeof(mca_btl_openib_header_t)+
|
|
2*MCA_BTL_IB_FRAG_ALIGN;
|
|
|
|
|
|
|
|
|
|
ompi_free_list_init(&openib_btl->send_free_frag,
|
|
length,
|
|
OBJ_CLASS(mca_btl_openib_send_frag_frag_t),
|
|
mca_btl_openib_component.ib_free_list_num,
|
|
mca_btl_openib_component.ib_free_list_max,
|
|
mca_btl_openib_component.ib_free_list_inc,
|
|
openib_btl->super.btl_mpool);
|
|
|
|
|
|
/* Initialize the rr_desc_post array for posting of rr*/
|
|
openib_btl->rr_desc_post = (struct ibv_recv_wr *)
|
|
malloc((mca_btl_openib_component.ib_rr_buf_max * sizeof(struct ibv_recv_wr)));
|
|
|
|
btls[i] = &openib_btl->super;
|
|
}
|
|
|
|
/* Post OOB receive to support dynamic connection setup */
|
|
mca_btl_openib_post_recv();
|
|
mca_btl_openib_modex_send();
|
|
|
|
*num_btl_modules = mca_btl_openib_component.ib_num_btls;
|
|
free(ib_devs);
|
|
return btls;
|
|
}
|
|
|
|
/*
|
|
* IB component progress.
|
|
*/
|
|
|
|
|
|
int mca_btl_openib_component_progress()
|
|
{
|
|
uint32_t i;
|
|
int count = 0,ne;
|
|
mca_btl_openib_frag_t* frag;
|
|
mca_btl_openib_endpoint_t* endpoint;
|
|
/* Poll for completions */
|
|
for(i = 0; i < mca_btl_openib_component.ib_num_btls; i++) {
|
|
|
|
struct ibv_wc wc;
|
|
mca_btl_openib_module_t* openib_btl = &mca_btl_openib_component.openib_btls[i];
|
|
memset(&wc, 0, sizeof(struct ibv_wc));
|
|
|
|
/* we have two completion queues, one for "high" priority and one for "low".
|
|
* we will check the high priority and process them until there are none left.
|
|
* note that low priority messages are only processed one per progress call.
|
|
*/
|
|
ne=ibv_poll_cq(openib_btl->ib_cq_high, 1, &wc );
|
|
if(ne < 0 ){
|
|
BTL_ERROR(("error polling CQ with %d errno says %s\n", ne, strerror(errno)));
|
|
return OMPI_ERROR;
|
|
}
|
|
else if(wc.status != IBV_WC_SUCCESS) {
|
|
BTL_ERROR(("error polling CQ with status %d for wr_id %llu\n",
|
|
wc.status, wc.wr_id));
|
|
return OMPI_ERROR;
|
|
}
|
|
else if(1 == ne) {
|
|
BTL_VERBOSE(("completion queue event says opcode is %d\n", wc.opcode));
|
|
|
|
/* Handle work completions */
|
|
switch(wc.opcode) {
|
|
case IBV_WC_RECV_RDMA_WITH_IMM:
|
|
BTL_ERROR(("Got an RDMA with Immediate data Not supported!"));
|
|
return OMPI_ERROR;
|
|
|
|
case IBV_WC_RECV:
|
|
/* Process a RECV */
|
|
|
|
BTL_VERBOSE(("Got an recv on the completion queue"));
|
|
frag = (mca_btl_openib_frag_t*) (void*) (unsigned long) wc.wr_id;
|
|
endpoint = (mca_btl_openib_endpoint_t*) frag->endpoint;
|
|
frag->rc=OMPI_SUCCESS;
|
|
frag->segment.seg_len =
|
|
wc.byte_len-
|
|
((unsigned char*) frag->segment.seg_addr.pval - (unsigned char*) frag->hdr);
|
|
|
|
|
|
|
|
/* advance the segment address past the header and subtract from the length..*/
|
|
openib_btl->ib_reg[frag->hdr->tag].cbfunc(&openib_btl->super,
|
|
frag->hdr->tag,
|
|
&frag->base,
|
|
openib_btl->ib_reg[frag->hdr->tag].cbdata);
|
|
|
|
#ifdef OMPI_MCA_BTL_OPENIB_HAVE_SRQ
|
|
if(mca_btl_openib_component.use_srq) {
|
|
OPAL_THREAD_ADD32((int32_t*) &openib_btl->srr_posted_high, -1);
|
|
MCA_BTL_OPENIB_POST_SRR_HIGH(openib_btl, 0);
|
|
} else {
|
|
#endif
|
|
OPAL_THREAD_ADD32((int32_t*) &endpoint->rr_posted_high, -1);
|
|
MCA_BTL_OPENIB_ENDPOINT_POST_RR_HIGH(((mca_btl_openib_frag_t*) (void*) (unsigned long) wc.wr_id)->endpoint, 0);
|
|
#ifdef OMPI_MCA_BTL_OPENIB_HAVE_SRQ
|
|
}
|
|
#endif
|
|
OMPI_FREE_LIST_RETURN(&(openib_btl->recv_free_eager), (opal_list_item_t*) frag);
|
|
count++;
|
|
break;
|
|
|
|
case IBV_WC_RDMA_READ:
|
|
case IBV_WC_RDMA_WRITE:
|
|
case IBV_WC_SEND :
|
|
|
|
/* Process a completed send or rdma write*/
|
|
frag = (mca_btl_openib_frag_t*) (void*) (unsigned long) wc.wr_id;
|
|
frag->rc = OMPI_SUCCESS;
|
|
frag->base.des_cbfunc(&openib_btl->super, frag->endpoint, &frag->base, frag->rc);
|
|
count++;
|
|
break;
|
|
|
|
|
|
default:
|
|
BTL_ERROR(("Unhandled work completion opcode is %d", wc.opcode));
|
|
break;
|
|
}
|
|
}
|
|
|
|
ne=ibv_poll_cq(openib_btl->ib_cq_low, 1, &wc );
|
|
if(ne < 0){
|
|
BTL_ERROR(("error polling CQ with %d errno says %s", ne, strerror(errno)));
|
|
return OMPI_ERROR;
|
|
}
|
|
else if(wc.status != IBV_WC_SUCCESS) {
|
|
BTL_ERROR(("error polling CQ with status %d for wr_id %llu",
|
|
wc.status, wc.wr_id));
|
|
return OMPI_ERROR;
|
|
}
|
|
else if(1 == ne) {
|
|
/* Handle n/w completions */
|
|
switch(wc.opcode) {
|
|
case IBV_WC_RECV_RDMA_WITH_IMM:
|
|
BTL_ERROR(("Got an RDMA with Immediate data Not supported!"));
|
|
return OMPI_ERROR;
|
|
|
|
case IBV_WC_RECV:
|
|
/* process a recv completion (this should only occur for a send not an rdma) */
|
|
BTL_VERBOSE(( "Got a recv completion"));
|
|
frag = (mca_btl_openib_frag_t*) (void*) (unsigned long) wc.wr_id;
|
|
endpoint = (mca_btl_openib_endpoint_t*) frag->endpoint;
|
|
frag->rc=OMPI_SUCCESS;
|
|
|
|
/* advance the segment address past the header and subtract from the length..*/
|
|
frag->segment.seg_len =
|
|
wc.byte_len-
|
|
((unsigned char*) frag->segment.seg_addr.pval - (unsigned char*) frag->hdr);
|
|
|
|
|
|
openib_btl->ib_reg[frag->hdr->tag].cbfunc(&openib_btl->super,
|
|
frag->hdr->tag,
|
|
&frag->base,
|
|
openib_btl->ib_reg[frag->hdr->tag].cbdata);
|
|
|
|
#ifdef OMPI_MCA_BTL_OPENIB_HAVE_SRQ
|
|
if(mca_btl_openib_component.use_srq) {
|
|
OPAL_THREAD_ADD32((int32_t*) &openib_btl->srr_posted_low, -1);
|
|
MCA_BTL_OPENIB_POST_SRR_LOW(openib_btl, 0);
|
|
} else {
|
|
#endif
|
|
OPAL_THREAD_ADD32((int32_t*) &endpoint->rr_posted_low, -1);
|
|
MCA_BTL_OPENIB_ENDPOINT_POST_RR_LOW(((mca_btl_openib_frag_t*) (void*)
|
|
(unsigned long)wc.wr_id)->endpoint, 0);
|
|
#ifdef OMPI_MCA_BTL_OPENIB_HAVE_SRQ
|
|
}
|
|
#endif
|
|
OMPI_FREE_LIST_RETURN(&(openib_btl->recv_free_max), (opal_list_item_t*) frag);
|
|
count++;
|
|
break;
|
|
|
|
case IBV_WC_RDMA_READ:
|
|
case IBV_WC_RDMA_WRITE:
|
|
case IBV_WC_SEND :
|
|
|
|
/* Process a completed send */
|
|
frag = (mca_btl_openib_frag_t*) (void*) (unsigned long) wc.wr_id;
|
|
frag->rc = OMPI_SUCCESS;
|
|
frag->base.des_cbfunc(&openib_btl->super, frag->endpoint, &frag->base, frag->rc);
|
|
count++;
|
|
break;
|
|
|
|
default:
|
|
BTL_ERROR(("Unhandled work completion opcode is %d", wc.opcode));
|
|
break;
|
|
}
|
|
}
|
|
|
|
}
|
|
return count;
|
|
}
|