/* ////////////////////////////////////////////////////////////////////////// */ static int segment_detach(map_segment_t *ds_buf, sshmem_mkey_t *mkey) { int rc = OSHMEM_SUCCESS; openib_device_t *device = &memheap_device; int i; assert(ds_buf); OPAL_OUTPUT_VERBOSE( (70, oshmem_sshmem_base_framework.framework_output, "%s: %s: detaching " "(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, ds_buf->seg_id, ds_buf->super.va_base, (unsigned long)ds_buf->seg_size, ds_buf->seg_name) ); if (device) { if (0 < (i = 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 *); for (i--;i >= 0; i--) { ib_mr = array[i]; if(ibv_dereg_mr(ib_mr)) { OPAL_OUTPUT_VERBOSE( (5, oshmem_sshmem_base_framework.framework_output, "error ibv_dereg_mr(): %d: %s", errno, strerror(errno)) ); rc = OSHMEM_ERROR; } opal_value_array_remove_item(&device->ib_mr_array, i); } if (!rc && device->ib_mr_shared) { device->ib_mr_shared = NULL; } OBJ_DESTRUCT(&device->ib_mr_array); } if (!rc && device->ib_pd) { if (ibv_dealloc_pd(device->ib_pd)) { OPAL_OUTPUT_VERBOSE( (5, oshmem_sshmem_base_framework.framework_output, "error ibv_dealloc_pd(): %d: %s", errno, strerror(errno)) ); rc = OSHMEM_ERROR; } else { device->ib_pd = NULL; } } if(!rc && device->ib_dev_context) { if(ibv_close_device(device->ib_dev_context)) { OPAL_OUTPUT_VERBOSE( (5, oshmem_sshmem_base_framework.framework_output, "error ibv_close_device(): %d: %s", errno, strerror(errno)) ); rc = OSHMEM_ERROR; } else { device->ib_dev_context = NULL; } } if(!rc && device->ib_devs) { ibv_free_device_list(device->ib_devs); device->ib_devs = NULL; } } /* reset the contents of the map_segment_t associated with this * shared memory segment. */ shmem_ds_reset(ds_buf); return rc; }
/* ////////////////////////////////////////////////////////////////////////// */ 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; }
static void _ibv_detach(map_segment_t *s) { int rc = OSHMEM_SUCCESS; openib_device_t *device = NULL; assert(s); device = (openib_device_t *)s->context; if (device) { if(!rc && 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]; if(ibv_dereg_mr(ib_mr)) { MEMHEAP_ERROR("error ibv_dereg_mr(): %d: %s", errno, strerror(errno)); rc = OSHMEM_ERROR; } opal_value_array_remove_item(&device->ib_mr_array, 0); } if(!rc && device->ib_mr_shared) { device->ib_mr_shared = NULL; } OBJ_DESTRUCT(&device->ib_mr_array); } if(!rc && device->ib_pd) { if(ibv_dealloc_pd(device->ib_pd)) { MEMHEAP_ERROR("error ibv_dealloc_pd(): %d: %s", errno, strerror(errno)); rc = OSHMEM_ERROR; } else { device->ib_pd = NULL; } } if(!rc && device->ib_dev_context) { if(ibv_close_device(device->ib_dev_context)) { MEMHEAP_ERROR("error ibv_close_device(): %d: %s", errno, strerror(errno)); rc = OSHMEM_ERROR; } else { device->ib_dev_context = NULL; } } if(!rc && device->ib_devs) { ibv_free_device_list(device->ib_devs); device->ib_devs = NULL; } } }