/* * 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 "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/mvapi/mpool_mvapi.h" #include #include #include #include /* for strerror()*/ extern int errno; 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 char* mca_btl_openib_param_register_string( const char* param_name, const char* default_value) { char *param_value; int id = mca_base_param_register_string("btl","openib",param_name,NULL,default_value); mca_base_param_lookup_string(id, ¶m_value); return param_value; } static inline int mca_btl_openib_param_register_int( const char* param_name, int default_value) { int id = mca_base_param_register_int("btl","openib",param_name,NULL,default_value); int param_value = default_value; mca_base_param_lookup_int(id,¶m_value); return param_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_component.ib_free_list_num = mca_btl_openib_param_register_int ("free_list_num", 8); mca_btl_openib_component.ib_free_list_max = mca_btl_openib_param_register_int ("free_list_max", 1024); mca_btl_openib_component.ib_free_list_inc = mca_btl_openib_param_register_int ("free_list_inc", 32); mca_btl_openib_component.ib_mem_registry_hints_log_size = mca_btl_openib_param_register_int ("hints_log_size", 8); mca_btl_openib_component.ib_mpool_name = mca_btl_openib_param_register_string("mpool", "openib"); mca_btl_openib_component.ib_rr_buf_max = mca_btl_openib_param_register_int("rr_buf_max", 16); mca_btl_openib_component.ib_rr_buf_min = mca_btl_openib_param_register_int("rr_buf_min", 8); mca_btl_openib_component.reg_mru_len = mca_btl_openib_param_register_int("reg_mru_len", 16); mca_btl_openib_component.ib_cq_size = mca_btl_openib_param_register_int("ib_cq_size", 500); mca_btl_openib_component.ib_wq_size = mca_btl_openib_param_register_int("ib_wq_size", 500); mca_btl_openib_component.ib_sg_list_size = mca_btl_openib_param_register_int("ib_sg_list_size", 1); mca_btl_openib_component.ib_pkey_ix = mca_btl_openib_param_register_int("ib_pkey_ix", 0); mca_btl_openib_component.ib_psn = mca_btl_openib_param_register_int("ib_psn", 0); mca_btl_openib_component.ib_qp_ous_rd_atom = mca_btl_openib_param_register_int("ib_qp_ous_rd_atom", 1); mca_btl_openib_component.ib_mtu = mca_btl_openib_param_register_int("ib_mtu", IBV_MTU_1024); mca_btl_openib_component.ib_min_rnr_timer = mca_btl_openib_param_register_int("ib_min_rnr_timer", 5); mca_btl_openib_component.ib_timeout = mca_btl_openib_param_register_int("ib_timeout", 10); mca_btl_openib_component.ib_retry_count = mca_btl_openib_param_register_int("ib_retry_count", 7); mca_btl_openib_component.ib_rnr_retry = mca_btl_openib_param_register_int("ib_rnr_retry", 7); mca_btl_openib_component.ib_max_rdma_dst_ops = mca_btl_openib_param_register_int("ib_max_rdma_dst_ops", 16); mca_btl_openib_component.ib_service_level = mca_btl_openib_param_register_int("ib_service_level", 0); mca_btl_openib_component.ib_static_rate = mca_btl_openib_param_register_int("ib_static_rate", 0); mca_btl_openib_component.ib_src_path_bits = mca_btl_openib_param_register_int("ib_src_path_bits", 0); mca_btl_openib_module.super.btl_exclusivity = mca_btl_openib_param_register_int ("exclusivity", 0); mca_btl_openib_module.super.btl_eager_limit = mca_btl_openib_param_register_int ("eager_limit", (64*1024)) - sizeof(mca_btl_openib_header_t); mca_btl_openib_module.super.btl_min_send_size = mca_btl_openib_param_register_int ("min_send_size", (64*1024)) - sizeof(mca_btl_openib_header_t); mca_btl_openib_module.super.btl_max_send_size = mca_btl_openib_param_register_int ("max_send_size", (128*1024)) - sizeof(mca_btl_openib_header_t); mca_btl_openib_module.super.btl_min_rdma_size = mca_btl_openib_param_register_int("min_rdma_size", 1024*1024); mca_btl_openib_module.super.btl_max_rdma_size = mca_btl_openib_param_register_int("max_rdma_size", 1024*1024); mca_btl_openib_module.super.btl_flags = mca_btl_openib_param_register_int("flags", MCA_BTL_FLAGS_RDMA); 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; } /* * 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(); dlist_start(dev_list); dlist_for_each_data(dev_list, ib_dev, struct ibv_device) num_devs++; if(0 == num_devs) { BTL_ERROR(("No hca's found on this host!")); 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; 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->ib_pool = mca_mpool_base_module_create(mca_btl_openib_component.ib_mpool_name, &openib_btl->super, &mpool_resources); if(NULL == openib_btl->ib_pool) { 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->ib_pool); 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->ib_pool); 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->ib_pool); /* 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->ib_pool); 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->ib_pool); /* 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(); *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, ne; int count = 0; 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. */ do{ 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_DEBUG(("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_DEBUG(("Got an recv on the completion queue")); frag = (mca_btl_openib_frag_t*) 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); OPAL_THREAD_ADD32(&endpoint->rr_posted_high, -1); MCA_BTL_OPENIB_ENDPOINT_POST_RR_HIGH(((mca_btl_openib_frag_t*)wc.wr_id)->endpoint, 0); OMPI_FREE_LIST_RETURN(&(openib_btl->recv_free_eager), (opal_list_item_t*) frag); count++; break; case IBV_WC_RDMA_WRITE: case IBV_WC_SEND : /* Process a completed send or rdma write*/ frag = (mca_btl_openib_frag_t*) wc.wr_id; frag->rc = OMPI_SUCCESS; frag->base.des_cbfunc(&openib_btl->super, frag->endpoint, &frag->base, frag->rc); count++; break; break; default: BTL_ERROR(("Unhandled work completion opcode is %d", wc.opcode)); break; } } } while(ne > 0); 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_DEBUG(( "Got a recv completion")); frag = (mca_btl_openib_frag_t*) 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); OPAL_THREAD_ADD32(&endpoint->rr_posted_low, -1); MCA_BTL_OPENIB_ENDPOINT_POST_RR_LOW(((mca_btl_openib_frag_t*)wc.wr_id)->endpoint, 0); OMPI_FREE_LIST_RETURN(&(openib_btl->recv_free_max), (opal_list_item_t*) frag); count++; break; case IBV_WC_RDMA_WRITE: case IBV_WC_SEND : /* Process a completed send */ frag = (mca_btl_openib_frag_t*) 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; }