/* * Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana * University Research and Technology * Corporation. All rights reserved. * Copyright (c) 2004-2005 The University of Tennessee and The University * of Tennessee Research Foundation. 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/constants.h" #include "opal/event/event.h" #include "opal/util/if.h" #include "opal/util/argv.h" #include "opal/util/output.h" #include "opal/util/show_help.h" #include "ompi/proc/proc.h" #include "ompi/mca/pml/pml.h" #include "ompi/mca/btl/btl.h" #include "opal/sys/timer.h" #include "opal/mca/base/mca_base_param.h" #include "orte/mca/errmgr/errmgr.h" #include "ompi/mca/mpool/base/base.h" #include "btl_openib.h" #include "btl_openib_frag.h" #include "btl_openib_endpoint.h" #include "btl_openib_eager_rdma.h" #include "btl_openib_proc.h" #include "ompi/mca/btl/base/base.h" #include "ompi/datatype/convertor.h" #include "ompi/mca/mpool/mpool.h" #include #include #include #include /* for strerror()*/ #include "ompi/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) { char *msg; int val; /* 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 ("max_btls", "maximum number of HCAs/ports to use", 4, &mca_btl_openib_component.ib_max_btls); 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", -1, &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("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, an override of this value may occur if set too small, " "the override is 2*Number of Peers* btl_openib_rd_num", 1000, (int*) &mca_btl_openib_component.ib_cq_size); mca_btl_openib_param_register_int("ib_sg_list_size", "size of IB segment list", 4, (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", 4, (int*) &mca_btl_openib_component.ib_qp_ous_rd_atom); val = IBV_MTU_1024; asprintf(&msg, "IB MTU, in bytes. Valid values are: %d=256 bytes, %d=512 bytes, %d=1024 bytes, %d=2048 bytes, %d=4096 bytes.", IBV_MTU_256, IBV_MTU_512, IBV_MTU_1024, IBV_MTU_2048, IBV_MTU_4096); mca_btl_openib_param_register_int("ib_mtu", msg, val, (int*) &mca_btl_openib_component.ib_mtu); free(msg); 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", 4, (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 ("exclusivity", "BTL exclusivity", MCA_BTL_EXCLUSIVITY_DEFAULT, (int*) &mca_btl_openib_module.super.btl_exclusivity); mca_btl_openib_param_register_int("rd_num", "number of receive descriptors to post to a QP", 8, (int*) &mca_btl_openib_component.rd_num); mca_btl_openib_param_register_int("rd_low", "low water mark before reposting occurs", 6, (int*) &mca_btl_openib_component.rd_low); mca_btl_openib_param_register_int("rd_win", "window size at which generate explicity credit message", 4, (int*) &mca_btl_openib_component.rd_win); mca_btl_openib_component.rd_rsv = ((mca_btl_openib_component.rd_num<<1)-1) / mca_btl_openib_component.rd_win; mca_btl_openib_param_register_int("srq_rd_max", "Max number of receive descriptors posted per SRQ.", 1000, (int*) &mca_btl_openib_component.srq_rd_max); mca_btl_openib_param_register_int("srq_rd_per_peer", "Number of receive descriptors posted per peer. (SRQ)", 16, (int*) &mca_btl_openib_component.srq_rd_per_peer); mca_btl_openib_param_register_int("srq_sd_max", "Maximum number of send descriptors posted. (SRQ)", 8, &mca_btl_openib_component.srq_sd_max); mca_btl_openib_param_register_int("use_eager_rdma", "user RDMA for eager messages", 1, (int*) &mca_btl_openib_component.use_eager_rdma); if (mca_btl_openib_component.use_srq) mca_btl_openib_component.use_eager_rdma = 0; mca_btl_openib_param_register_int("eager_rdma_threshold", "Open rdma channel for eager messages after this number of messages received from peer", 16, (int*) &mca_btl_openib_component.eager_rdma_threshold); mca_btl_openib_param_register_int("max_eager_rdma", "Maximum number of eager RDMA connections", 16, (int*)&mca_btl_openib_component.max_eager_rdma); mca_btl_openib_param_register_int("eager_rdma_num", "Number of RDMA buffers for eager messages", 16, (int*)&mca_btl_openib_component.eager_rdma_num); mca_btl_openib_component.eager_rdma_num+=1; mca_btl_openib_param_register_int("btls_per_lid", "Number of BTLs to create for each LID", 1, (int*)&mca_btl_openib_component.btls_per_lid); mca_btl_openib_param_register_int("max_lmc", "Maximum LIDs to use for each port (0 - all available)", 0, (int*)&mca_btl_openib_component.max_lmc); mca_btl_openib_param_register_int("buffer_alignment", "Prefered communication buffers alignmet for best performance", 64, (int*)&mca_btl_openib_component.buffer_alignment); mca_btl_openib_param_register_int ("eager_limit", "eager send limit", (12*1024), &val); mca_btl_openib_module.super.btl_eager_limit = val; mca_btl_openib_param_register_int ("min_send_size", "minimum send size", (32*1024), &val); mca_btl_openib_module.super.btl_min_send_size = val; mca_btl_openib_param_register_int ("max_send_size", "maximum send size", (64*1024), &val); mca_btl_openib_module.super.btl_max_send_size = val; mca_btl_openib_param_register_int("min_rdma_size", "minimum rdma size", 1024*1024, &val); mca_btl_openib_module.super.btl_min_rdma_size = val; mca_btl_openib_param_register_int("max_rdma_size", "maximium rdma size", 1024*1024, &val); mca_btl_openib_module.super.btl_max_rdma_size = val; mca_btl_openib_param_register_int("flags", "BTL flags, SEND=1, PUT=2, GET=4", MCA_BTL_FLAGS_PUT | MCA_BTL_FLAGS_NEED_ACK | MCA_BTL_FLAGS_NEED_CSUM, (int*) &mca_btl_openib_module.super.btl_flags); mca_btl_openib_param_register_int("bandwidth", "Approximate maximum bandwidth of interconnect", 800, (int*) &mca_btl_openib_module.super.btl_bandwidth); 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, 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; } /* * Callback function on control message. */ static void mca_btl_openib_control( struct mca_btl_base_module_t* btl, mca_btl_base_tag_t tag, mca_btl_base_descriptor_t* descriptor, void* cbdata) { /* dont return credits used for control messages */ mca_btl_openib_frag_t* frag = (mca_btl_openib_frag_t*)descriptor; mca_btl_openib_endpoint_t* endpoint = frag->endpoint; mca_btl_openib_control_header_t *ctl_hdr = frag->segment.seg_addr.pval; mca_btl_openib_eager_rdma_header_t *rdma_hdr; if(frag->size == mca_btl_openib_component.eager_limit) { /* if not sent via rdma */ if(!MCA_BTL_OPENIB_RDMA_FRAG(frag) && ctl_hdr->type == MCA_BTL_OPENIB_CONTROL_NOOP) { OPAL_THREAD_ADD32(&endpoint->rd_credits_hp, -1); } } else { OPAL_THREAD_ADD32(&endpoint->rd_credits_lp, -1); } switch (ctl_hdr->type) { case MCA_BTL_OPENIB_CONTROL_NOOP: break; case MCA_BTL_OPENIB_CONTROL_RDMA: rdma_hdr = (mca_btl_openib_eager_rdma_header_t*)ctl_hdr; if (endpoint->eager_rdma_remote.base.pval) { BTL_ERROR(("Got RDMA connect twise!")); return; } endpoint->eager_rdma_remote.rkey = rdma_hdr->rkey; endpoint->eager_rdma_remote.base.pval = rdma_hdr->rdma_start.pval; endpoint->eager_rdma_remote.tokens = mca_btl_openib_component.eager_rdma_num - 1; break; default: BTL_ERROR(("Unknown message type received by BTL")); break; } } static int init_one_port(opal_list_t *btl_list, mca_btl_openib_hca_t *hca, uint8_t port_num, struct ibv_port_attr *ib_port_attr) { uint16_t lid, i, lmc; mca_btl_openib_module_t *openib_btl; mca_btl_base_selected_module_t *ib_selected; lmc = (1 << ib_port_attr->lmc); if(mca_btl_openib_component.max_lmc && mca_btl_openib_component.max_lmc < lmc) lmc = mca_btl_openib_component.max_lmc; for(lid = ib_port_attr->lid; lid < ib_port_attr->lid + lmc; lid++){ for(i = 0; i < mca_btl_openib_component.btls_per_lid; i++){ openib_btl = malloc(sizeof(mca_btl_openib_module_t)); if(NULL == openib_btl) { ORTE_ERROR_LOG(ORTE_ERR_OUT_OF_RESOURCE); return -1; } memcpy(openib_btl, &mca_btl_openib_module, sizeof(mca_btl_openib_module)); memcpy(&openib_btl->ib_port_attr, ib_port_attr, sizeof(struct ibv_port_attr)); ib_selected = OBJ_NEW(mca_btl_base_selected_module_t); ib_selected->btl_module = (mca_btl_base_module_t*) openib_btl; openib_btl->hca = hca; openib_btl->port_num = (uint8_t) port_num; openib_btl->lid = lid; openib_btl->src_path_bits = lid - ib_port_attr->lid; /* store the sm_lid for multi-nic support */ openib_btl->port_info.subnet = ib_port_attr->sm_lid; openib_btl->ib_reg[MCA_BTL_TAG_BTL].cbfunc = mca_btl_openib_control; openib_btl->ib_reg[MCA_BTL_TAG_BTL].cbdata = NULL; opal_list_append(btl_list, (opal_list_item_t*) ib_selected); hca->btls++; if(++mca_btl_openib_component.ib_num_btls >= mca_btl_openib_component.ib_max_btls) return 0; } } return 1; } static int init_one_hca(opal_list_t *btl_list, struct ibv_device* ib_dev) { struct mca_mpool_base_resources_t mpool_resources; mca_btl_openib_hca_t *hca; uint8_t i; int ret = -1; hca = malloc(sizeof(mca_btl_openib_hca_t)); if(NULL == hca){ ORTE_ERROR_LOG(ORTE_ERR_OUT_OF_RESOURCE); return -1; } hca->ib_dev = ib_dev; hca->ib_dev_context = ibv_open_device(ib_dev); hca->btls = 0; if(NULL == hca->ib_dev_context){ BTL_ERROR(("error obtaining device context for %s errno says %s\n", ibv_get_device_name(ib_dev), strerror(errno))); goto free_hca; } if(ibv_query_device(hca->ib_dev_context, &hca->ib_dev_attr)){ BTL_ERROR(("error obtaining device attributes for %s errno says %s\n", ibv_get_device_name(ib_dev), strerror(errno))); goto close_hca; } hca->ib_pd = ibv_alloc_pd(hca->ib_dev_context); if(NULL == hca->ib_pd){ BTL_ERROR(("error allocating pd for %s errno says %s\n", ibv_get_device_name(ib_dev), strerror(errno))); goto close_hca; } mpool_resources.ib_pd = hca->ib_pd; hca->mpool = mca_mpool_base_module_create(mca_btl_openib_component.ib_mpool_name, hca, &mpool_resources); if(NULL == hca->mpool){ BTL_ERROR(("error creating IB memory pool for %s errno says %s\n", ibv_get_device_name(ib_dev), strerror(errno))); goto dealloc_pd; } ret = 1; /* Note ports are 1 based hence j = 1 */ for(i = 1; i <= hca->ib_dev_attr.phys_port_cnt; i++){ struct ibv_port_attr ib_port_attr; if(ibv_query_port(hca->ib_dev_context, i, &ib_port_attr)){ BTL_ERROR(("error getting port attributes for device %s " "port number %d errno says %s", ibv_get_device_name(ib_dev), i, strerror(errno))); break; } if(IBV_PORT_ACTIVE == ib_port_attr.state){ ret = init_one_port(btl_list, hca, i, &ib_port_attr); if (ret <= 0) break; } } if (hca->btls != 0) return ret; mca_mpool_base_module_destroy(hca->mpool); dealloc_pd: ibv_dealloc_pd(hca->ib_pd); close_hca: ibv_close_device(hca->ib_dev_context); free_hca: free(hca); return ret; } /* * 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; mca_btl_base_module_t** btls; int i, length, num_devs; 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; #if OMPI_MCA_BTL_OPENIB_HAVE_DEVICE_LIST == 0 struct dlist *dev_list; struct ibv_device* ib_dev; #endif unsigned short seedv[3]; /* initialization */ *num_btl_modules = 0; num_devs = 0; /* openib BTL does not currently support progress threads, so disable the component if they were requested */ if (enable_progress_threads) { mca_btl_base_error_no_nics("OpenIB", "HCA"); mca_btl_openib_component.ib_num_btls = 0; mca_btl_openib_modex_send(); return NULL; } seedv[0] = orte_process_info.my_name->vpid; seedv[1] = opal_sys_timer_get_cycles(); seedv[2] = opal_sys_timer_get_cycles(); seed48(seedv); #if OMPI_MCA_BTL_OPENIB_HAVE_DEVICE_LIST ib_devs = ibv_get_device_list(&num_devs); #else /* 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++; #endif if(0 == num_devs) { mca_btl_base_error_no_nics("OpenIB", "HCA"); mca_btl_openib_modex_send(); return NULL; } #if OMPI_MCA_BTL_OPENIB_HAVE_DEVICE_LIST == 0 /* 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; #endif /** 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 && mca_btl_openib_component.ib_num_btls < mca_btl_openib_component.ib_max_btls; i++){ if (init_one_hca(&btl_list, ib_devs[i]) <= 0) break; } /* Allocate space for btl modules */ mca_btl_openib_component.openib_btls = 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 = 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]; openib_btl->rd_num = mca_btl_openib_component.rd_num + mca_btl_openib_component.rd_rsv; openib_btl->rd_low = mca_btl_openib_component.rd_low; openib_btl->num_peers = 0; openib_btl->sd_tokens_hp = openib_btl->sd_tokens_lp = mca_btl_openib_component.srq_sd_max; /* Initialize module state */ OBJ_CONSTRUCT(&openib_btl->pending_frags_hp, opal_list_t); OBJ_CONSTRUCT(&openib_btl->pending_frags_lp, opal_list_t); 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->send_free_control, 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); /* initialize the memory pool using the hca */ openib_btl->super.btl_mpool = openib_btl->hca->mpool; /* Initialize pool of send fragments */ length = sizeof(mca_btl_openib_frag_t) + sizeof(mca_btl_openib_header_t) + sizeof(mca_btl_openib_footer_t) + openib_btl->super.btl_eager_limit; openib_btl->eager_rdma_frag_size = length; ompi_free_list_init_ex(&openib_btl->send_free_eager, length, sizeof(mca_btl_openib_frag_t), mca_btl_openib_component.buffer_alignment, 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_ex(&openib_btl->recv_free_eager, length, sizeof(mca_btl_openib_frag_t), mca_btl_openib_component.buffer_alignment, 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; ompi_free_list_init_ex(&openib_btl->send_free_max, length, sizeof(mca_btl_openib_frag_t), mca_btl_openib_component.buffer_alignment, 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_ex(&openib_btl->recv_free_max, length, sizeof(mca_btl_openib_frag_t), mca_btl_openib_component.buffer_alignment, 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) + sizeof(mca_btl_openib_footer_t) + sizeof(mca_btl_openib_eager_rdma_header_t); ompi_free_list_init_ex(&openib_btl->send_free_control, length, sizeof(mca_btl_openib_frag_t), mca_btl_openib_component.buffer_alignment, OBJ_CLASS(mca_btl_openib_send_frag_control_t), mca_btl_openib_component.ib_free_list_num, -1, mca_btl_openib_component.ib_free_list_inc, openib_btl->super.btl_mpool); length = sizeof(mca_btl_openib_frag_t); 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, NULL); orte_pointer_array_init(&openib_btl->eager_rdma_buffers, mca_btl_openib_component.max_eager_rdma, mca_btl_openib_component.max_eager_rdma, 0); openib_btl->eager_rdma_buffers_count = 0; OBJ_CONSTRUCT(&openib_btl->eager_rdma_lock, opal_mutex_t); 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; #if OMPI_MCA_BTL_OPENIB_HAVE_DEVICE_LIST ibv_free_device_list(ib_devs); #else free(ib_devs); #endif return btls; } static int mca_btl_openib_handle_incoming_hp(mca_btl_openib_module_t *, mca_btl_openib_endpoint_t *, mca_btl_openib_frag_t *, size_t); int mca_btl_openib_handle_incoming_hp( mca_btl_openib_module_t *openib_btl, mca_btl_openib_endpoint_t *endpoint, mca_btl_openib_frag_t *frag, size_t byte_len) { /* advance the segment address past the header and subtract from the length..*/ frag->segment.seg_len = byte_len - ((unsigned char*)frag->segment.seg_addr.pval - (unsigned char*) frag->hdr); /* call registered callback */ openib_btl->ib_reg[frag->hdr->tag].cbfunc(&openib_btl->super, frag->hdr->tag, &frag->base, openib_btl->ib_reg[frag->hdr->tag].cbdata); if (!MCA_BTL_OPENIB_RDMA_FRAG(frag)) { OMPI_FREE_LIST_RETURN(&(openib_btl->recv_free_eager), (ompi_free_list_item_t*) frag); } else { mca_btl_openib_frag_t *tf; OPAL_THREAD_LOCK(&endpoint->eager_rdma_local.lock); MCA_BTL_OPENIB_RDMA_MAKE_REMOTE(frag->ftr); while (endpoint->eager_rdma_local.tail != endpoint->eager_rdma_local.head) { tf = MCA_BTL_OPENIB_GET_LOCAL_RDMA_FRAG(endpoint, endpoint->eager_rdma_local.tail); if (MCA_BTL_OPENIB_RDMA_FRAG_LOCAL (tf)) break; OPAL_THREAD_ADD32(&endpoint->eager_rdma_local.credits, 1); MCA_BTL_OPENIB_RDMA_NEXT_INDEX(endpoint->eager_rdma_local.tail); } OPAL_THREAD_UNLOCK(&endpoint->eager_rdma_local.lock); } if (!mca_btl_openib_component.use_srq) { OPAL_THREAD_ADD32(&endpoint->sd_tokens_hp, frag->hdr->credits); OPAL_THREAD_ADD32(&endpoint->eager_rdma_remote.tokens, frag->hdr->rdma_credits); } if (mca_btl_openib_component.use_eager_rdma && !endpoint->eager_rdma_local.base.pval && openib_btl->eager_rdma_buffers_count < mca_btl_openib_component.max_eager_rdma && OPAL_THREAD_ADD32(&endpoint->eager_recv_count, 1) == mca_btl_openib_component.eager_rdma_threshold) mca_btl_openib_endpoint_connect_eager_rdma(endpoint); /* repost receive descriptors */ #ifdef OMPI_MCA_BTL_OPENIB_HAVE_SRQ if(mca_btl_openib_component.use_srq) { OPAL_THREAD_ADD32((int32_t*) &openib_btl->srd_posted_hp, -1); MCA_BTL_OPENIB_POST_SRR_HIGH(openib_btl, 0); } else { #endif if (!MCA_BTL_OPENIB_RDMA_FRAG(frag)) { OPAL_THREAD_ADD32((int32_t*) &endpoint->rd_posted_hp, -1); MCA_BTL_OPENIB_ENDPOINT_POST_RR_HIGH(endpoint, 0); } /* check to see if we need to progress any pending desciptors */ if(endpoint->sd_tokens_hp > 0 || endpoint->eager_rdma_remote.tokens > 0) { while(!opal_list_is_empty(&endpoint->pending_frags_hp) && endpoint->sd_wqe_hp > 0 && (endpoint->sd_tokens_hp > 0 || endpoint->eager_rdma_remote.tokens > 0)) { opal_list_item_t *frag_item; OPAL_THREAD_LOCK(&endpoint->endpoint_lock); frag_item = opal_list_remove_first(&(endpoint->pending_frags_hp)); OPAL_THREAD_UNLOCK(&endpoint->endpoint_lock); if(NULL == (frag = (mca_btl_openib_frag_t *) frag_item)) break; if(OMPI_SUCCESS != mca_btl_openib_endpoint_send(frag->endpoint, frag)) { BTL_ERROR(("error in posting pending send\n")); break; } } } /* check to see if we need to return credits */ if((endpoint->rd_credits_hp >= mca_btl_openib_component.rd_win || endpoint->eager_rdma_local.credits >= mca_btl_openib_component.rd_win) && OPAL_THREAD_ADD32(&endpoint->sd_credits_hp, 1) == 1) { mca_btl_openib_endpoint_send_credits_hp(endpoint); } #ifdef OMPI_MCA_BTL_OPENIB_HAVE_SRQ } #endif return OMPI_SUCCESS; } static char* mca_btl_openib_component_status_to_string(enum ibv_wc_status status) { switch(status) { case IBV_WC_SUCCESS: return "SUCCESS"; break; case IBV_WC_LOC_LEN_ERR: return "LOCAL LENGTH ERROR"; break; case IBV_WC_LOC_QP_OP_ERR: return "LOCAL QP OPERATION ERROR"; break; case IBV_WC_LOC_EEC_OP_ERR: return "LOCAL EEC OPERATION ERROR"; break; case IBV_WC_LOC_PROT_ERR: return "LOCAL PROTOCOL ERROR"; break; case IBV_WC_WR_FLUSH_ERR: return "WORK REQUEST FLUSHED ERROR"; break; case IBV_WC_MW_BIND_ERR: return "MEMORY WINDOW BIND ERROR"; break; case IBV_WC_BAD_RESP_ERR: return "BAD RESPONSE ERROR"; break; case IBV_WC_LOC_ACCESS_ERR: return "LOCAL ACCESS ERROR"; break; case IBV_WC_REM_INV_REQ_ERR: return "INVALID REQUEST ERROR"; break; case IBV_WC_REM_ACCESS_ERR: return "REMOTE ACCESS ERROR"; break; case IBV_WC_REM_OP_ERR: return "REMOTE OPERATION ERROR"; break; case IBV_WC_RETRY_EXC_ERR: return "RETRY EXCEEDED ERROR"; break; case IBV_WC_RNR_RETRY_EXC_ERR: return "RECEIVER NOT READY RETRY EXCEEEDED ERROR"; break; case IBV_WC_LOC_RDD_VIOL_ERR: return "LOCAL RDD VIOLATION ERROR"; break; case IBV_WC_REM_INV_RD_REQ_ERR: return "INVALID READ REQUEST ERROR"; break; case IBV_WC_REM_ABORT_ERR: return "REMOTE ABORT ERROR"; break; case IBV_WC_INV_EECN_ERR: return "INVALID EECN ERROR"; break; case IBV_WC_INV_EEC_STATE_ERR: return "INVALID EEC STATE ERROR"; break; case IBV_WC_FATAL_ERR: return "FATAL ERROR"; break; case IBV_WC_RESP_TIMEOUT_ERR: return "RESPONSE TIMEOUT ERROR"; break; case IBV_WC_GENERAL_ERR: return "GENERAL ERROR"; break; default: return "STATUS UNDEFINED"; break; } } /* * IB component progress. */ int mca_btl_openib_component_progress() { int i, j, c; int count = 0,ne = 0, ret; int32_t credits; mca_btl_openib_frag_t* frag; mca_btl_openib_endpoint_t* endpoint; /* Poll for RDMA completions - if any succeed, we don't process the slower queues */ for(i = 0; i < mca_btl_openib_component.ib_num_btls; i++) { mca_btl_openib_module_t* openib_btl = &mca_btl_openib_component.openib_btls[i]; OPAL_THREAD_LOCK(&openib_btl->eager_rdma_lock); c = openib_btl->eager_rdma_buffers_count; OPAL_THREAD_UNLOCK(&openib_btl->eager_rdma_lock); for(j = 0; j < c; j++) { endpoint = orte_pointer_array_get_item(openib_btl->eager_rdma_buffers, j); if(!endpoint) /* shouldn't happen */ continue; OPAL_THREAD_LOCK(&endpoint->eager_rdma_local.lock); frag = MCA_BTL_OPENIB_GET_LOCAL_RDMA_FRAG (endpoint, endpoint->eager_rdma_local.head); if (MCA_BTL_OPENIB_RDMA_FRAG_LOCAL (frag)) { uint32_t size = MCA_BTL_OPENIB_RDMA_FRAG_GET_SIZE(frag->ftr); #if OMPI_ENABLE_DEBUG if (frag->ftr->seq != endpoint->eager_rdma_local.seq) BTL_ERROR(("Eager RDMA wrong SEQ: received %d expected %d", frag->ftr->seq, endpoint->eager_rdma_local.seq)); endpoint->eager_rdma_local.seq++; #endif MCA_BTL_OPENIB_RDMA_NEXT_INDEX(endpoint->eager_rdma_local.head); OPAL_THREAD_UNLOCK(&endpoint->eager_rdma_local.lock); frag->hdr = (mca_btl_openib_header_t*)(((char*)frag->ftr) - size + sizeof(mca_btl_openib_footer_t)); frag->segment.seg_addr.pval = ((unsigned char* )frag->hdr) + sizeof(mca_btl_openib_header_t); ret = mca_btl_openib_handle_incoming_hp(openib_btl, frag->endpoint, frag, size - sizeof(mca_btl_openib_footer_t)); if (ret != MPI_SUCCESS) return ret; count++; } else OPAL_THREAD_UNLOCK(&endpoint->eager_rdma_local.lock); } } if(count) return count; 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]; /* 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_hp, 1, &wc ); if(ne < 0 ){ BTL_ERROR(("error polling HP CQ with %d errno says %s\n", ne, strerror(errno))); return OMPI_ERROR; } else if(1 == ne) { if(wc.status != IBV_WC_SUCCESS) { static int flush_err_printed = 0; ompi_proc_t* remote_proc = NULL; frag = (mca_btl_openib_frag_t*) (unsigned long) wc.wr_id; if(frag) { endpoint = (mca_btl_openib_endpoint_t*) frag->endpoint; if(endpoint && endpoint->endpoint_proc && endpoint->endpoint_proc->proc_ompi) { remote_proc = endpoint->endpoint_proc->proc_ompi; } } if(wc.status != IBV_WC_WR_FLUSH_ERR || !flush_err_printed++) BTL_PEER_ERROR(remote_proc, ("error polling HP CQ with status %s status number %d for wr_id %llu opcode %d", mca_btl_openib_component_status_to_string(wc.status), wc.status, wc.wr_id, wc.opcode)); if(wc.status == IBV_WC_RETRY_EXC_ERR) { opal_show_help("help-mpi-btl-openib.txt", "btl_openib:retry-exceeded", true); abort(); } return OMPI_ERROR; } /* 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_RDMA_WRITE: case IBV_WC_SEND : frag = (mca_btl_openib_frag_t*) (unsigned long) wc.wr_id; endpoint = frag->endpoint; /* Process a completed send */ frag->base.des_cbfunc(&openib_btl->super, frag->endpoint, &frag->base, OMPI_SUCCESS); /* return send wqe */ OPAL_THREAD_ADD32(&endpoint->sd_wqe_hp, 1); /* check to see if we need to progress any pending desciptors */ while (!opal_list_is_empty(&endpoint->pending_frags_hp) && endpoint->sd_wqe_hp > 0 && (endpoint->sd_tokens_hp > 0 || endpoint->eager_rdma_remote.tokens > 0)) { opal_list_item_t *frag_item; OPAL_THREAD_LOCK(&endpoint->endpoint_lock); frag_item = opal_list_remove_first(&(endpoint->pending_frags_hp)); OPAL_THREAD_UNLOCK(&endpoint->endpoint_lock); if(NULL == (frag = (mca_btl_openib_frag_t *) frag_item)) break; if(OMPI_SUCCESS != mca_btl_openib_endpoint_send(frag->endpoint, frag)) { BTL_ERROR(("error in posting pending send\n")); break; } } if(!mca_btl_openib_component.use_srq) { /* check to see if we need to return credits */ if((endpoint->rd_credits_hp >= mca_btl_openib_component.rd_win || endpoint->eager_rdma_local.credits >= mca_btl_openib_component.rd_win) && OPAL_THREAD_ADD32(&endpoint->sd_credits_hp, 1) == 1) { mca_btl_openib_endpoint_send_credits_hp(endpoint); } } else if(OPAL_THREAD_ADD32(&openib_btl->sd_tokens_hp, 1) > 0 && !opal_list_is_empty(&openib_btl->pending_frags_hp)) { /* dequeue resources due to global flow control */ opal_list_item_t *frag_item; OPAL_THREAD_LOCK(&openib_btl->ib_lock); frag_item = opal_list_remove_first(&openib_btl->pending_frags_hp); OPAL_THREAD_UNLOCK(&openib_btl->ib_lock); if(NULL != (frag = (mca_btl_openib_frag_t *) frag_item) && OMPI_SUCCESS != mca_btl_openib_endpoint_send(frag->endpoint, frag)) { BTL_ERROR(("error in posting pending send\n")); } } count++; break; case IBV_WC_RECV: /* Process a RECV */ frag = (mca_btl_openib_frag_t*) (unsigned long) wc.wr_id; ret = mca_btl_openib_handle_incoming_hp(openib_btl, frag->endpoint, frag, wc.byte_len); if (ret != OMPI_SUCCESS) return ret; count++; break; case IBV_WC_RDMA_READ: default: BTL_ERROR(("Unhandled work completion opcode is %d", wc.opcode)); break; } } ne=ibv_poll_cq(openib_btl->ib_cq_lp, 1, &wc ); if(ne < 0){ BTL_ERROR(("error polling LP CQ with %d errno says %s", ne, strerror(errno))); return OMPI_ERROR; } else if(1 == ne) { if(wc.status != IBV_WC_SUCCESS) { static int flush_err_printed = 0; ompi_proc_t* remote_proc = NULL; frag = (mca_btl_openib_frag_t*) (unsigned long) wc.wr_id; if(frag) { endpoint = (mca_btl_openib_endpoint_t*) frag->endpoint; if(endpoint && endpoint->endpoint_proc && endpoint->endpoint_proc->proc_ompi) { remote_proc = endpoint->endpoint_proc->proc_ompi; } } if(wc.status != IBV_WC_WR_FLUSH_ERR || !flush_err_printed++) BTL_PEER_ERROR(remote_proc, ("error polling LP CQ with status %s status number %d for wr_id %llu opcode %d", mca_btl_openib_component_status_to_string(wc.status), wc.status, wc.wr_id, wc.opcode)); return OMPI_ERROR; } /* 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_SEND: frag = (mca_btl_openib_frag_t*) (unsigned long) wc.wr_id; endpoint = frag->endpoint; /* Process a completed send - receiver must return tokens */ frag->base.des_cbfunc(&openib_btl->super, frag->endpoint, &frag->base, OMPI_SUCCESS); /* return send wqe */ OPAL_THREAD_ADD32(&endpoint->sd_wqe_lp, 1); /* check to see if we need to progress any pending desciptors */ while (!opal_list_is_empty(&endpoint->pending_frags_lp) && endpoint->sd_wqe_lp > 0 && endpoint->sd_tokens_lp > 0) { opal_list_item_t *frag_item; OPAL_THREAD_LOCK(&endpoint->endpoint_lock); frag_item = opal_list_remove_first(&(endpoint->pending_frags_lp)); OPAL_THREAD_UNLOCK(&endpoint->endpoint_lock); if(NULL == (frag = (mca_btl_openib_frag_t *) frag_item)) break; MCA_BTL_IB_FRAG_PROGRESS(frag); } if( !mca_btl_openib_component.use_srq) { /* check to see if we need to return credits */ if( endpoint->rd_credits_lp >= mca_btl_openib_component.rd_win && OPAL_THREAD_ADD32(&endpoint->sd_credits_lp, 1) == 1) { mca_btl_openib_endpoint_send_credits_lp(endpoint); } /* SRQ case */ } else if(OPAL_THREAD_ADD32(&openib_btl->sd_tokens_lp, 1) > 0 && !opal_list_is_empty(&openib_btl->pending_frags_lp)) { opal_list_item_t *frag_item; OPAL_THREAD_LOCK(&openib_btl->ib_lock); frag_item = opal_list_remove_first(&openib_btl->pending_frags_lp); OPAL_THREAD_UNLOCK(&openib_btl->ib_lock); if(NULL != (frag = (mca_btl_openib_frag_t *) frag_item)) { MCA_BTL_IB_FRAG_PROGRESS(frag); } } count++; break; case IBV_WC_RDMA_READ: frag = (mca_btl_openib_frag_t*) (unsigned long) wc.wr_id; OPAL_THREAD_ADD32(&frag->endpoint->get_tokens, 1); /* fall through */ case IBV_WC_RDMA_WRITE: frag = (mca_btl_openib_frag_t*) (unsigned long) wc.wr_id; endpoint = frag->endpoint; /* process a completed write */ frag->base.des_cbfunc(&openib_btl->super, frag->endpoint, &frag->base, OMPI_SUCCESS); /* return send wqe */ OPAL_THREAD_ADD32(&endpoint->sd_wqe_lp, 1); /* check for pending frags */ if(!opal_list_is_empty(&endpoint->pending_frags_lp)) { opal_list_item_t *frag_item; OPAL_THREAD_LOCK(&endpoint->endpoint_lock); frag_item = opal_list_remove_first(&endpoint->pending_frags_lp); OPAL_THREAD_UNLOCK(&endpoint->endpoint_lock); if(NULL != (frag = (mca_btl_openib_frag_t *) frag_item)) { MCA_BTL_IB_FRAG_PROGRESS(frag); } } if (mca_btl_openib_component.use_srq && endpoint->sd_wqe_lp > 0 && !opal_list_is_empty(&openib_btl->pending_frags_lp)) { opal_list_item_t *frag_item; OPAL_THREAD_LOCK(&openib_btl->ib_lock); frag_item = opal_list_remove_first(&openib_btl->pending_frags_lp); OPAL_THREAD_UNLOCK(&openib_btl->ib_lock); if(NULL != (frag = (mca_btl_openib_frag_t *) frag_item)) { MCA_BTL_IB_FRAG_PROGRESS(frag); } } count++; break; case IBV_WC_RECV: /* Process a RECV */ frag = (mca_btl_openib_frag_t*) (unsigned long) wc.wr_id; endpoint = (mca_btl_openib_endpoint_t*) frag->endpoint; credits = frag->hdr->credits; /* 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); /* call registered callback */ openib_btl->ib_reg[frag->hdr->tag].cbfunc(&openib_btl->super, frag->hdr->tag, &frag->base, openib_btl->ib_reg[frag->hdr->tag].cbdata); OMPI_FREE_LIST_RETURN(&(openib_btl->recv_free_max), (ompi_free_list_item_t*) frag); #ifdef OMPI_MCA_BTL_OPENIB_HAVE_SRQ if(mca_btl_openib_component.use_srq) { /* repost receive descriptors */ OPAL_THREAD_ADD32((int32_t*) &openib_btl->srd_posted_lp, -1); MCA_BTL_OPENIB_POST_SRR_LOW(openib_btl, 0); } else { #endif /* repost receive descriptors */ OPAL_THREAD_ADD32((int32_t*) &endpoint->rd_posted_lp, -1); MCA_BTL_OPENIB_ENDPOINT_POST_RR_LOW(endpoint, 0); /* check to see if we need to progress any pending desciptors */ if( OPAL_THREAD_ADD32(&endpoint->sd_tokens_lp, credits) > 0) { while(!opal_list_is_empty(&endpoint->pending_frags_lp) && endpoint->sd_wqe_lp > 0 && endpoint->sd_tokens_lp > 0) { opal_list_item_t *frag_item; OPAL_THREAD_LOCK(&endpoint->endpoint_lock); frag_item = opal_list_remove_first(&(endpoint->pending_frags_lp)); OPAL_THREAD_UNLOCK(&endpoint->endpoint_lock); if(NULL == (frag = (mca_btl_openib_frag_t *) frag_item)) break; MCA_BTL_IB_FRAG_PROGRESS(frag); } } /* check to see if we need to return credits */ if( endpoint->rd_credits_lp >= mca_btl_openib_component.rd_win && OPAL_THREAD_ADD32(&endpoint->sd_credits_lp, 1) == 1) { mca_btl_openib_endpoint_send_credits_lp(endpoint); } #ifdef OMPI_MCA_BTL_OPENIB_HAVE_SRQ } #endif count++; break; default: BTL_ERROR(("Unhandled work completion opcode is %d", wc.opcode)); break; } } } return count; }