/**
* opal_carto_base_get_nodes_distance - returns the distance of
* all the nodes from the reference node.
*
* @param graph
* @param reference_node
* @param node_type the type of the nodes in the returned array
* @param dist_array
*
* @return int number of nodes in the returned array.
*/
int opal_carto_base_get_nodes_distance_fn(opal_carto_graph_t *graph, opal_carto_base_node_t *reference_node,
const char *node_type, opal_value_array_t *dist_array)
{
opal_value_array_t *distance_array;
vertex_distance_from_t *vertex_distance;
opal_carto_base_node_t *node;
uint32_t i, graph_order;
int distance_array_size;
opal_carto_node_distance_t node_distance;
distance_array = OBJ_NEW(opal_value_array_t);
opal_value_array_init(distance_array, sizeof(vertex_distance_from_t));
opal_value_array_reserve(distance_array,50);
/* use dijkstra algorithm to receive the distance of all the nodes from the referenced node */
graph_order = opal_graph_dijkstra(graph, reference_node->vertex, distance_array);
/* for all the nodes in the dijkstra array */
for (i = 0, distance_array_size = 0; i < graph_order; i++) {
vertex_distance = opal_value_array_get_item(distance_array, i);
node = vertex_distance->vertex->vertex_data;
/* check if the node is in the correct type */
if (NULL == node_type || 0 == strcmp(node->node_type, node_type)) {
/* assigne the result distance array */
node_distance.node = vertex_distance->vertex->vertex_data;
node_distance.node_distance = vertex_distance->weight;
opal_value_array_append_item(dist_array, (void *)&node_distance);
}
}
/* return the result distance array */
return distance_array_size;
}
uint32_t opal_graph_spf(opal_graph_t *graph, opal_graph_vertex_t *vertex1, opal_graph_vertex_t *vertex2)
{
opal_value_array_t *distance_array;
uint32_t items_in_distance_array, spf = DISTANCE_INFINITY;
vertex_distance_from_t *vertex_distance;
uint32_t i;
/**
* Verify that the first vertex belongs to the graph.
*/
if (graph != vertex1->in_graph) {
OPAL_OUTPUT((0,"opal_graph_spf 1 Vertex1 %p not in the graph %p\n",(void *)vertex1,(void *)graph));
return DISTANCE_INFINITY;
}
/**
* Verify that the second vertex belongs to the graph.
*/
if (graph != vertex2->in_graph) {
OPAL_OUTPUT((0,"opal_graph_spf 2 Vertex2 %p not in the graph %p\n",(void *)vertex2,(void *)graph));
return DISTANCE_INFINITY;
}
/**
* Run Dijkstra algorithm on the graph from the start vertex.
*/
distance_array = OBJ_NEW(opal_value_array_t);
opal_value_array_init(distance_array, sizeof(vertex_distance_from_t));
opal_value_array_reserve(distance_array,50);
items_in_distance_array = opal_graph_dijkstra(graph, vertex1, distance_array);
/**
* find the end vertex in the distance array that Dijkstra
* algorithm returned.
*/
for (i = 0; i < items_in_distance_array; i++) {
vertex_distance = opal_value_array_get_item(distance_array, i);
if (vertex_distance->vertex == vertex2) {
spf = vertex_distance->weight;
break;
}
}
OBJ_RELEASE(distance_array);
/* return the distance (weight) to the end vertex */
return spf;
}
/* ////////////////////////////////////////////////////////////////////////// */
static int
verbs_runtime_query(mca_base_module_t **module,
int *priority,
const char *hint)
{
int rc = OSHMEM_SUCCESS;
openib_device_t my_device;
openib_device_t *device = &my_device;
int num_devs = 0;
int i = 0;
*priority = 0;
*module = NULL;
memset(device, 0, sizeof(*device));
#ifdef HAVE_IBV_GET_DEVICE_LIST
device->ib_devs = ibv_get_device_list(&num_devs);
#else
#error unsupported ibv_get_device_list in infiniband/verbs.h
#endif
if (num_devs == 0 || !device->ib_devs) {
return OSHMEM_ERR_NOT_SUPPORTED;
}
/* Open device */
if (NULL != mca_sshmem_verbs_component.hca_name) {
for (i = 0; i < num_devs; i++) {
if (0 == strcmp(mca_sshmem_verbs_component.hca_name, ibv_get_device_name(device->ib_devs[i]))) {
device->ib_dev = device->ib_devs[i];
break;
}
}
} else {
device->ib_dev = device->ib_devs[0];
}
if (NULL == device->ib_dev) {
rc = OSHMEM_ERR_NOT_FOUND;
goto out;
}
if (NULL == (device->ib_dev_context = ibv_open_device(device->ib_dev))) {
rc = OSHMEM_ERR_RESOURCE_BUSY;
goto out;
}
/* Obtain device attributes */
if (ibv_query_device(device->ib_dev_context, &device->ib_dev_attr)) {
rc = OSHMEM_ERR_RESOURCE_BUSY;
goto out;
}
/* Allocate the protection domain for the device */
device->ib_pd = ibv_alloc_pd(device->ib_dev_context);
if (NULL == device->ib_pd) {
rc = OSHMEM_ERR_RESOURCE_BUSY;
goto out;
}
/* Allocate memory */
if (!rc) {
void *addr = NULL;
size_t size = getpagesize();
struct ibv_mr *ib_mr = NULL;
uint64_t access_flag = IBV_ACCESS_LOCAL_WRITE |
IBV_ACCESS_REMOTE_WRITE |
IBV_ACCESS_REMOTE_READ;
uint64_t exp_access_flag = 0;
OBJ_CONSTRUCT(&device->ib_mr_array, opal_value_array_t);
opal_value_array_init(&device->ib_mr_array, sizeof(struct ibv_mr *));
#if defined(MPAGE_ENABLE) && (MPAGE_ENABLE > 0)
exp_access_flag = IBV_EXP_ACCESS_ALLOCATE_MR |
IBV_EXP_ACCESS_SHARED_MR_USER_READ |
IBV_EXP_ACCESS_SHARED_MR_USER_WRITE;
#endif /* MPAGE_ENABLE */
struct ibv_exp_reg_mr_in in = {device->ib_pd, addr, size, access_flag|exp_access_flag, 0};
ib_mr = ibv_exp_reg_mr(&in);
if (NULL == ib_mr) {
rc = OSHMEM_ERR_OUT_OF_RESOURCE;
} else {
device->ib_mr_shared = ib_mr;
opal_value_array_append_item(&device->ib_mr_array, &ib_mr);
}
#if defined(MPAGE_ENABLE) && (MPAGE_ENABLE > 0)
if (!rc) {
struct ibv_exp_reg_shared_mr_in in_smr;
access_flag = IBV_ACCESS_LOCAL_WRITE |
IBV_ACCESS_REMOTE_WRITE |
IBV_ACCESS_REMOTE_READ|
IBV_EXP_ACCESS_NO_RDMA;
addr = (void *)mca_sshmem_base_start_address;
mca_sshmem_verbs_fill_shared_mr(&in_smr, device->ib_pd, device->ib_mr_shared->handle, addr, access_flag);
ib_mr = ibv_exp_reg_shared_mr(&in_smr);
if (NULL == ib_mr) {
mca_sshmem_verbs_component.has_shared_mr = 0;
} else {
opal_value_array_append_item(&device->ib_mr_array, &ib_mr);
mca_sshmem_verbs_component.has_shared_mr = 1;
}
}
#endif /* MPAGE_ENABLE */
}
/* all is well - rainbows and butterflies */
if (!rc) {
*priority = mca_sshmem_verbs_component.priority;
*module = (mca_base_module_t *)&mca_sshmem_verbs_module.super;
}
out:
if (device) {
if (opal_value_array_get_size(&device->ib_mr_array)) {
struct ibv_mr** array;
struct ibv_mr* ib_mr = NULL;
array = OPAL_VALUE_ARRAY_GET_BASE(&device->ib_mr_array, struct ibv_mr *);
while (opal_value_array_get_size(&device->ib_mr_array) > 0) {
ib_mr = array[0];
ibv_dereg_mr(ib_mr);
opal_value_array_remove_item(&device->ib_mr_array, 0);
}
if (device->ib_mr_shared) {
device->ib_mr_shared = NULL;
}
OBJ_DESTRUCT(&device->ib_mr_array);
}
if (device->ib_pd) {
ibv_dealloc_pd(device->ib_pd);
device->ib_pd = NULL;
}
if(device->ib_dev_context) {
ibv_close_device(device->ib_dev_context);
device->ib_dev_context = NULL;
}
if(device->ib_devs) {
ibv_free_device_list(device->ib_devs);
device->ib_devs = NULL;
}
}
return rc;
}
int
main(int argc, char* argv[])
{
int rank, size, distance, distance_array_size, i;
opal_carto_graph_t *graph;
opal_carto_base_node_t *slot0, *end_node;
opal_carto_node_distance_t *node_distance;
opal_value_array_t *distance_array;
MPI_Init(&argc, &argv);
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
MPI_Comm_size(MPI_COMM_WORLD, &size);
printf("Hello, world, I am %d of %d\n", rank, size);
if (0 == rank) {
/**
*
*/
opal_output(0," \n\nget_host_graph Full\n");
opal_carto_base_get_host_graph(&graph,NULL);
opal_graph_print(graph);
slot0 = opal_carto_base_find_node(graph, "slot0");
if (NULL == slot0) {
opal_output(0,"couldnt find slot0 in the graph exiting\n");
opal_carto_base_free_graph(graph);
return -1;
}
end_node = opal_carto_base_find_node(graph, "slot3");
if (NULL == end_node) {
opal_output(0,"couldnt find mthca1 in the graph exiting\n");
opal_carto_base_free_graph(graph);
return -1;
}
distance = opal_carto_base_spf(graph, slot0, end_node);
opal_output(0,"\nThe distance between slot0 and slot3 is %d\n",distance);
distance_array = OBJ_NEW(opal_value_array_t);
opal_value_array_init(distance_array, sizeof(opal_carto_node_distance_t));
opal_value_array_reserve(distance_array, 50);
distance_array_size = opal_carto_base_get_nodes_distance(graph, slot0, NULL, distance_array);
for (i=0; i < distance_array_size; i++) {
node_distance = opal_value_array_get_item(distance_array, i);
opal_output(0,"Node %s distance from slot0 is %d\n",node_distance->node->node_name, node_distance->node_distance);
}
OBJ_RELEASE(distance_array);
opal_carto_base_free_graph(graph);
/**
*
*/
opal_output(0," \n\nget_host_graph Infiniband\n");
opal_carto_base_get_host_graph(&graph,"Infiniband");
opal_graph_print(graph);
slot0 = opal_carto_base_find_node(graph, "slot0");
if (NULL == slot0) {
opal_output(0,"couldnt find slot0 in the graph exiting\n");
opal_carto_base_free_graph(graph);
return -1;
}
end_node = opal_carto_base_find_node(graph, "mthca1");
if (NULL == end_node) {
opal_output(0,"couldnt find mthca1 in the graph exiting\n");
opal_carto_base_free_graph(graph);
return -1;
}
distance = opal_carto_base_spf(graph, slot0, end_node);
opal_output(0,"\nThe distance between slot0 and mthca1 is %d\n",distance);
distance_array = OBJ_NEW(opal_value_array_t);
opal_value_array_init(distance_array, sizeof(opal_carto_node_distance_t));
opal_value_array_reserve(distance_array, 50);
distance_array_size = opal_carto_base_get_nodes_distance(graph, slot0, "Infiniband", distance_array);
for (i=0; i < distance_array_size; i++) {
node_distance = opal_value_array_get_item(distance_array, i);
opal_output(0,"Node %s distance from slot0 is %d\n",node_distance->node->node_name, node_distance->node_distance);
}
OBJ_RELEASE(distance_array);
opal_carto_base_free_graph(graph);
/**
*
*/
opal_output(0," \n\nget_host_graph Ethernet\n");
opal_carto_base_get_host_graph(&graph,"Ethernet");
opal_graph_print(graph);
slot0 = opal_carto_base_find_node(graph, "slot0");
if (NULL == slot0) {
opal_output(0,"couldnt find slot0 in the graph exiting\n");
opal_carto_base_free_graph(graph);
return -1;
}
end_node = opal_carto_base_find_node(graph, "eth1");
if (NULL == end_node) {
opal_output(0,"couldnt find mthca1 in the graph exiting\n");
opal_carto_base_free_graph(graph);
return -1;
}
distance = opal_carto_base_spf(graph, slot0, end_node);
opal_output(0,"\nThe distance between slot0 and eth1 is %d\n",distance);
distance_array = OBJ_NEW(opal_value_array_t);
opal_value_array_init(distance_array, sizeof(opal_carto_node_distance_t));
opal_value_array_reserve(distance_array, 50);
distance_array_size = opal_carto_base_get_nodes_distance(graph, slot0, "Ethernet", distance_array);
for (i=0; i < distance_array_size; i++) {
node_distance = opal_value_array_get_item(distance_array, i);
opal_output(0,"Node %s distance from slot0 is %d\n",node_distance->node->node_name, node_distance->node_distance);
}
OBJ_RELEASE(distance_array);
opal_carto_base_free_graph(graph);
/**
*
*/
opal_output(0," \n\nget_host_graph Memory\n");
opal_carto_base_get_host_graph(&graph,"Memory");
opal_graph_print(graph);
slot0 = opal_carto_base_find_node(graph, "slot0");
if (NULL == slot0) {
opal_output(0,"couldnt find slot0 in the graph exiting\n");
opal_carto_base_free_graph(graph);
return -1;
}
end_node = opal_carto_base_find_node(graph, "mem3");
if (NULL == end_node) {
opal_output(0,"couldnt find mthca1 in the graph exiting\n");
opal_carto_base_free_graph(graph);
return -1;
}
distance = opal_carto_base_spf(graph, slot0, end_node);
opal_output(0,"\nThe distance between slot0 and mem3 is %d\n",distance);
distance_array = OBJ_NEW(opal_value_array_t);
opal_value_array_init(distance_array, sizeof(opal_carto_node_distance_t));
opal_value_array_reserve(distance_array, 50);
distance_array_size = opal_carto_base_get_nodes_distance(graph, slot0, "Memory", distance_array);
for (i=0; i < distance_array_size; i++) {
node_distance = opal_value_array_get_item(distance_array, i);
opal_output(0,"Node %s distance from slot0 is %d\n",node_distance->node->node_name, node_distance->node_distance);
}
OBJ_RELEASE(distance_array);
opal_carto_base_free_graph(graph);
}
MPI_Barrier(MPI_COMM_WORLD);
MPI_Finalize();
return 0;
}
/* ////////////////////////////////////////////////////////////////////////// */
static int
segment_create(map_segment_t *ds_buf,
const char *file_name,
size_t size)
{
int rc = OSHMEM_SUCCESS;
openib_device_t *device = &memheap_device;
int num_devs = 0;
int i = 0;
assert(ds_buf);
/* init the contents of map_segment_t */
shmem_ds_reset(ds_buf);
memset(device, 0, sizeof(*device));
#ifdef HAVE_IBV_GET_DEVICE_LIST
device->ib_devs = ibv_get_device_list(&num_devs);
#else
#error unsupported ibv_get_device_list in infiniband/verbs.h
#endif
if (num_devs == 0 || !device->ib_devs) {
return OSHMEM_ERR_NOT_SUPPORTED;
}
/* Open device */
if (NULL != mca_sshmem_verbs_component.hca_name) {
for (i = 0; i < num_devs; i++) {
if (0 == strcmp(mca_sshmem_verbs_component.hca_name, ibv_get_device_name(device->ib_devs[i]))) {
device->ib_dev = device->ib_devs[i];
break;
}
}
} else {
device->ib_dev = device->ib_devs[0];
}
if (NULL == device->ib_dev) {
OPAL_OUTPUT_VERBOSE(
(5, oshmem_sshmem_base_framework.framework_output,
"error getting device says %d: %s",
errno, strerror(errno))
);
return OSHMEM_ERR_NOT_FOUND;
}
if (NULL == (device->ib_dev_context = ibv_open_device(device->ib_dev))) {
OPAL_OUTPUT_VERBOSE(
(5, oshmem_sshmem_base_framework.framework_output,
"error obtaining device context for %s errno says %d: %s",
ibv_get_device_name(device->ib_dev), errno, strerror(errno))
);
return OSHMEM_ERR_RESOURCE_BUSY;
}
/* Obtain device attributes */
if (ibv_query_device(device->ib_dev_context, &device->ib_dev_attr)) {
OPAL_OUTPUT_VERBOSE(
(5, oshmem_sshmem_base_framework.framework_output,
"error obtaining device attributes for %s errno says %d: %s",
ibv_get_device_name(device->ib_dev), errno, strerror(errno))
);
return OSHMEM_ERR_RESOURCE_BUSY;
}
/* Allocate the protection domain for the device */
device->ib_pd = ibv_alloc_pd(device->ib_dev_context);
if (NULL == device->ib_pd) {
OPAL_OUTPUT_VERBOSE(
(5, oshmem_sshmem_base_framework.framework_output,
"error allocating protection domain for %s errno says %d: %s",
ibv_get_device_name(device->ib_dev), errno, strerror(errno))
);
return OSHMEM_ERR_RESOURCE_BUSY;
}
/* Allocate memory */
if (!rc) {
void *addr = NULL;
struct ibv_mr *ib_mr = NULL;
uint64_t access_flag = IBV_ACCESS_LOCAL_WRITE |
IBV_ACCESS_REMOTE_WRITE |
IBV_ACCESS_REMOTE_READ;
uint64_t exp_access_flag = 0;
OBJ_CONSTRUCT(&device->ib_mr_array, opal_value_array_t);
opal_value_array_init(&device->ib_mr_array, sizeof(struct ibv_mr *));
#if (MPAGE_ENABLE > 0)
exp_access_flag = IBV_EXP_ACCESS_ALLOCATE_MR |
IBV_EXP_ACCESS_SHARED_MR_USER_READ |
IBV_EXP_ACCESS_SHARED_MR_USER_WRITE;
#endif /* MPAGE_ENABLE */
struct ibv_exp_reg_mr_in in = {device->ib_pd, addr, size, access_flag|exp_access_flag, 0};
#if MPAGE_HAVE_IBV_EXP_REG_MR_CREATE_FLAGS
if (0 == mca_sshmem_verbs_component.has_shared_mr) {
in.addr = (void *)mca_sshmem_base_start_address;
in.comp_mask = IBV_EXP_REG_MR_CREATE_FLAGS;
in.create_flags = IBV_EXP_REG_MR_CREATE_CONTIG;
in.exp_access = access_flag;
}
#endif
ib_mr = ibv_exp_reg_mr(&in);
if (NULL == ib_mr) {
OPAL_OUTPUT_VERBOSE(
(5, oshmem_sshmem_base_framework.framework_output,
"error to ibv_exp_reg_mr() %llu bytes errno says %d: %s",
(unsigned long long)size, errno, strerror(errno))
);
rc = OSHMEM_ERR_OUT_OF_RESOURCE;
} else {
device->ib_mr_shared = ib_mr;
opal_value_array_append_item(&device->ib_mr_array, &ib_mr);
}
#if (MPAGE_ENABLE > 0)
if (!rc && mca_sshmem_verbs_component.has_shared_mr) {
void *addr = NULL;
access_flag = IBV_ACCESS_LOCAL_WRITE |
IBV_ACCESS_REMOTE_WRITE |
IBV_ACCESS_REMOTE_READ|
IBV_EXP_ACCESS_NO_RDMA;
addr = (void *)mca_sshmem_base_start_address;
struct ibv_exp_reg_shared_mr_in in;
mca_sshmem_verbs_fill_shared_mr(&in, device->ib_pd, device->ib_mr_shared->handle, addr, access_flag);
ib_mr = ibv_exp_reg_shared_mr(&in);
if (NULL == ib_mr) {
OPAL_OUTPUT_VERBOSE(
(5, oshmem_sshmem_base_framework.framework_output,
"error to ibv_reg_shared_mr() %llu bytes errno says %d: %s has_shared_mr: %d",
(unsigned long long)size, errno, strerror(errno),
mca_sshmem_verbs_component.has_shared_mr
)
);
rc = OSHMEM_ERR_OUT_OF_RESOURCE;
} else {
opal_value_array_append_item(&device->ib_mr_array, &ib_mr);
}
}
#endif /* MPAGE_ENABLE */
if (!rc) {
OPAL_OUTPUT_VERBOSE(
(70, oshmem_sshmem_base_framework.framework_output,
"ibv device %s shared_mr: %d",
ibv_get_device_name(device->ib_dev),
mca_sshmem_verbs_component.has_shared_mr)
);
if (mca_sshmem_verbs_component.has_shared_mr) {
assert(size == device->ib_mr_shared->length);
ds_buf->type = MAP_SEGMENT_ALLOC_IBV;
ds_buf->seg_id = device->ib_mr_shared->handle;
} else {
ds_buf->type = MAP_SEGMENT_ALLOC_IBV_NOSHMR;
ds_buf->seg_id = MAP_SEGMENT_SHM_INVALID;
}
ds_buf->super.va_base = ib_mr->addr;
ds_buf->seg_size = size;
ds_buf->super.va_end = (void*)((uintptr_t)ds_buf->super.va_base + ds_buf->seg_size);
}
}
OPAL_OUTPUT_VERBOSE(
(70, oshmem_sshmem_base_framework.framework_output,
"%s: %s: create %s "
"(id: %d, addr: %p size: %lu, name: %s)\n",
mca_sshmem_verbs_component.super.base_version.mca_type_name,
mca_sshmem_verbs_component.super.base_version.mca_component_name,
(rc ? "failure" : "successful"),
ds_buf->seg_id, ds_buf->super.va_base, (unsigned long)ds_buf->seg_size, ds_buf->seg_name)
);
return rc;
}
static int _ibv_attach(map_segment_t *s, size_t size)
{
int rc = OSHMEM_SUCCESS;
static openib_device_t memheap_device;
openib_device_t *device = &memheap_device;
int num_devs = 0;
assert(s);
memset(device, 0, sizeof(*device));
#ifdef HAVE_IBV_GET_DEVICE_LIST
device->ib_devs = ibv_get_device_list(&num_devs);
#else
#error unsupported ibv_get_device_list in infiniband/verbs.h
#endif
if (num_devs == 0 || !device->ib_devs)
{
rc = OSHMEM_ERR_NOT_SUPPORTED;
}
/* Open device */
if (!rc)
{
int i = 0;
if (num_devs > 1)
{
if (NULL == mca_memheap_base_param_hca_name)
{
MEMHEAP_VERBOSE(5, "found %d HCAs, choosing the first", num_devs);
}
else
{
MEMHEAP_VERBOSE(5, "found %d HCAs, searching for %s", num_devs, mca_memheap_base_param_hca_name);
}
}
for (i = 0; i < num_devs; i++)
{
device->ib_dev = device->ib_devs[i];
device->ib_dev_context = ibv_open_device(device->ib_dev);
if (NULL == device->ib_dev_context)
{
MEMHEAP_ERROR("error obtaining device context for %s errno says %d: %s",
ibv_get_device_name(device->ib_dev), errno, strerror(errno));
rc = OSHMEM_ERR_RESOURCE_BUSY;
}
else
{
if (NULL != mca_memheap_base_param_hca_name)
{
if (0 == strcmp(mca_memheap_base_param_hca_name,ibv_get_device_name(device->ib_dev)))
{
MEMHEAP_VERBOSE(5, "mca_memheap_base_param_hca_name = %s, selected %s as %d of %d", mca_memheap_base_param_hca_name, ibv_get_device_name(device->ib_dev), i, num_devs);
rc = OSHMEM_SUCCESS;
break;
}
}
else
{
MEMHEAP_VERBOSE(5, "mca_memheap_base_param_hca_name = %s, selected %s as %d of %d", mca_memheap_base_param_hca_name, ibv_get_device_name(device->ib_dev), i, num_devs);
rc = OSHMEM_SUCCESS;
break;
}
}
}
}
/* Obtain device attributes */
if (!rc)
{
if (ibv_query_device(device->ib_dev_context, &device->ib_dev_attr))
{
MEMHEAP_ERROR("error obtaining device attributes for %s errno says %d: %s",
ibv_get_device_name(device->ib_dev), errno, strerror(errno));
rc = OSHMEM_ERR_RESOURCE_BUSY;
}
else
{
MEMHEAP_VERBOSE(5, "ibv device %s",
ibv_get_device_name(device->ib_dev));
}
}
/* Allocate the protection domain for the device */
if (!rc)
{
device->ib_pd = ibv_alloc_pd(device->ib_dev_context);
if (NULL == device->ib_pd)
{
MEMHEAP_ERROR("error allocating protection domain for %s errno says %d: %s",
ibv_get_device_name(device->ib_dev), errno, strerror(errno));
rc = OSHMEM_ERR_RESOURCE_BUSY;
}
}
/* Allocate memory */
if (!rc)
{
void *addr = NULL;
struct ibv_mr *ib_mr = NULL;
int access_flag = IBV_ACCESS_LOCAL_WRITE |
IBV_ACCESS_REMOTE_WRITE |
IBV_ACCESS_REMOTE_READ;
OBJ_CONSTRUCT(&device->ib_mr_array, opal_value_array_t);
opal_value_array_init(&device->ib_mr_array, sizeof(struct ibv_mr *));
#if defined(MPAGE_ENABLE) && (MPAGE_ENABLE > 0)
access_flag |= IBV_ACCESS_ALLOCATE_MR |
IBV_ACCESS_SHARED_MR_USER_READ |
IBV_ACCESS_SHARED_MR_USER_WRITE;
#endif /* MPAGE_ENABLE */
ib_mr = ibv_reg_mr(device->ib_pd, addr, size, access_flag);
if (NULL == ib_mr)
{
MEMHEAP_ERROR("error to ibv_reg_mr() %llu bytes errno says %d: %s",
(unsigned long long)size, errno, strerror(errno));
rc = OSHMEM_ERR_OUT_OF_RESOURCE;
}
else
{
device->ib_mr_shared = ib_mr;
opal_value_array_append_item(&device->ib_mr_array, &ib_mr);
}
#if defined(MPAGE_ENABLE) && (MPAGE_ENABLE > 0)
if (!rc)
{
access_flag = IBV_ACCESS_LOCAL_WRITE |
IBV_ACCESS_REMOTE_WRITE |
IBV_ACCESS_REMOTE_READ|
IBV_ACCESS_NO_RDMA;
addr = (void *)mca_memheap_base_start_address;
ib_mr = ibv_reg_shared_mr(device->ib_mr_shared->handle,
device->ib_pd, addr, access_flag);
if (NULL == ib_mr)
{
MEMHEAP_ERROR("error to ibv_reg_shared_mr() %llu bytes errno says %d: %s",
(unsigned long long)size, errno, strerror(errno));
rc = OSHMEM_ERR_OUT_OF_RESOURCE;
}
else
{
opal_value_array_append_item(&device->ib_mr_array, &ib_mr);
}
}
#endif /* MPAGE_ENABLE */
if (!rc)
{
assert(size == device->ib_mr_shared->length);
s->type = MAP_SEGMENT_ALLOC_IBV;
s->shmid = device->ib_mr_shared->handle;
s->start = ib_mr->addr;
s->size = size;
s->end = (void*)((uintptr_t)s->start + s->size);
s->context = &memheap_device;
}
}
return rc;
}
