/* * 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 * * $HEADER$ */ /** * @file */ #ifndef MCA_PTL_IB_H #define MCA_PTL_IB_H /* Standard system includes */ #include #include /* Open MPI includes */ #include "class/ompi_free_list.h" #include "class/ompi_bitmap.h" #include "opal/event/event.h" #include "mca/pml/pml.h" #include "mca/btl/btl.h" #include "opal/util/output.h" #include "mca/mpool/mpool.h" #include "mca/btl/base/btl_base_error.h" #include "mca/btl/btl.h" #include "mca/btl/base/base.h" #include "btl_mvapi_endpoint.h" #include #include #include #if defined(c_plusplus) || defined(__cplusplus) extern "C" { #endif #define MCA_BTL_IB_LEAVE_PINNED 1 /** * Infiniband (IB) BTL component. */ struct mca_btl_mvapi_component_t { mca_btl_base_component_1_0_0_t super; /**< base BTL component */ uint32_t ib_num_btls; /**< number of hcas available to the IB component */ struct mca_btl_mvapi_module_t *mvapi_btls; /**< array of available PTLs */ int ib_free_list_num; /**< initial size of free lists */ int ib_free_list_max; /**< maximum size of free lists */ int ib_free_list_inc; /**< number of elements to alloc when growing free lists */ opal_list_t ib_procs; /**< list of ib proc structures */ opal_event_t ib_send_event; /**< event structure for sends */ opal_event_t ib_recv_event; /**< event structure for recvs */ opal_mutex_t ib_lock; /**< lock for accessing module state */ char* ib_mpool_name; /**< name of ib memory pool */ uint32_t ib_rr_buf_max; /**< the maximum number of posted rr */ uint32_t ib_rr_buf_min; /**< the minimum number of posted rr */ uint32_t rd_per_peer; /**< the number of recv desc posted per log(peer) in SRQ mode */ size_t eager_limit; size_t max_send_size; uint32_t leave_pinned; uint32_t reg_mru_len; uint32_t use_srq; uint32_t ib_cq_size; /**< Max outstanding CQE on the CQ */ uint32_t ib_wq_size; /**< Max outstanding WR on the WQ */ uint32_t ib_sg_list_size; /**< Max scatter/gather descriptor entries on the WQ*/ uint32_t ib_pkey_ix; uint32_t ib_psn; uint32_t ib_qp_ous_rd_atom; uint32_t ib_mtu; uint32_t ib_min_rnr_timer; uint32_t ib_timeout; uint32_t ib_retry_count; uint32_t ib_rnr_retry; uint32_t ib_max_rdma_dst_ops; uint32_t ib_service_level; uint32_t ib_static_rate; uint32_t ib_src_path_bits; /* number of send tokes available */ uint32_t max_wr_sq_tokens; uint32_t max_total_wr_sq_tokens; }; typedef struct mca_btl_mvapi_component_t mca_btl_mvapi_component_t; extern mca_btl_mvapi_component_t mca_btl_mvapi_component; typedef mca_btl_base_recv_reg_t mca_btl_mvapi_recv_reg_t; /** * IB PTL Interface */ struct mca_btl_mvapi_module_t { mca_btl_base_module_t super; /**< base PTL interface */ bool btl_inited; mca_btl_mvapi_recv_reg_t ib_reg[256]; mca_btl_mvapi_port_info_t port_info; /* contains only the subnet right now */ VAPI_hca_id_t hca_id; /**< ID of HCA */ IB_port_t port_id; /**< ID of the PORT */ VAPI_hca_port_t port; /**< IB port of this PTL */ VAPI_hca_hndl_t nic; /**< NIC handle */ VAPI_pd_hndl_t ptag; /**< Protection Domain tag */ VAPI_cq_hndl_t cq_hndl_high; /**< High Priority Completion Queue handle */ VAPI_cq_hndl_t cq_hndl_low; /**< Low Priority Completion Queue handle */ EVAPI_async_handler_hndl_t async_handler; /**< Async event handler used to detect weird/unknown events */ ompi_free_list_t send_free_eager; /**< free list of eager buffer descriptors */ ompi_free_list_t send_free_max; /**< free list of max buffer descriptors */ ompi_free_list_t send_free_frag; /**< free list of frags only... used for pining memory */ ompi_free_list_t recv_free_eager; /**< High priority free list of buffer descriptors */ ompi_free_list_t recv_free_max; /**< Low priority free list of buffer descriptors */ opal_list_t reg_mru_list; /**< a most recently used list of mca_mpool_mvapi_registration_t entries, this allows us to keep a working set of memory pinned */ opal_list_t repost; /**< list of buffers to repost */ opal_mutex_t ib_lock; /**< module level lock */ VAPI_rr_desc_t* rr_desc_post; VAPI_srq_hndl_t srq_hndl_high; /**< A high priority shared receive queue runtime optional, can also use a receive queue per queue pair.. */ VAPI_srq_hndl_t srq_hndl_low; /**< A low priority shared receive queue */ uint32_t srr_posted_high; /**< number of high priority shared rr posted to the nic*/ uint32_t srr_posted_low; /**< number of low priority shared rr posted to the nic*/ /**< an array to allow posting of rr in one swoop */ size_t ib_inline_max; /**< max size of inline send*/ uint32_t num_peers; uint32_t rd_buf_max; uint32_t rd_buf_min; int32_t wr_sq_tokens_hp; /**< number of high priority frags that can be outstanding (down counter) */ int32_t wr_sq_tokens_lp; /**< number of low priority frags that can be outstanding (down counter) */ opal_list_t pending_frags_hp; /**< list of pending high priority frags */ opal_list_t pending_frags_lp; /**< list of pending low priority frags */ }; typedef struct mca_btl_mvapi_module_t mca_btl_mvapi_module_t; #define MCA_BTL_MVAPI_POST_SRR_HIGH(mvapi_btl, \ additional) \ { \ do { \ OPAL_THREAD_LOCK(&mvapi_btl->ib_lock); \ if(mvapi_btl->srr_posted_high <= mvapi_btl->rd_buf_min+additional && \ mvapi_btl->srr_posted_high < mvapi_btl->rd_buf_max){ \ MCA_BTL_MVAPI_POST_SRR_SUB(mvapi_btl->rd_buf_max - \ mvapi_btl->srr_posted_high, \ mvapi_btl, \ &mvapi_btl->recv_free_eager, \ &mvapi_btl->srr_posted_high, \ mvapi_btl->nic, \ mvapi_btl->srq_hndl_high); \ } \ OPAL_THREAD_UNLOCK(&mvapi_btl->ib_lock); \ }while(0);\ } #define MCA_BTL_MVAPI_POST_SRR_LOW(mvapi_btl, \ additional) \ { \ do { \ OPAL_THREAD_LOCK(&mvapi_btl->ib_lock); \ if(mvapi_btl->srr_posted_low <= mvapi_btl->rd_buf_min+additional && \ mvapi_btl->srr_posted_low < mvapi_btl->rd_buf_max){ \ MCA_BTL_MVAPI_POST_SRR_SUB(mvapi_btl->rd_buf_max - \ mvapi_btl->srr_posted_low, \ mvapi_btl, \ &mvapi_btl->recv_free_max, \ &mvapi_btl->srr_posted_low, \ mvapi_btl->nic, \ mvapi_btl->srq_hndl_low); \ } \ OPAL_THREAD_UNLOCK(&mvapi_btl->ib_lock); \ } while(0); \ } #define MCA_BTL_MVAPI_POST_SRR_SUB(cnt, \ mvapi_btl, \ frag_list, \ srr_posted, \ nic, \ srq_hndl) \ {\ do { \ uint32_t i; \ VAPI_ret_t ret; \ uint32_t rwqe_posted = 0; \ int rc; \ opal_list_item_t* item = NULL; \ mca_btl_mvapi_frag_t* frag = NULL; \ VAPI_rr_desc_t* desc_post = mvapi_btl->rr_desc_post; \ for(i = 0; i < cnt; i++) { \ OMPI_FREE_LIST_WAIT(frag_list, item, rc); \ frag = (mca_btl_mvapi_frag_t*) item; \ frag->sg_entry.len = frag->size + \ ((unsigned char*) frag->segment.seg_addr.pval- \ (unsigned char*) frag->hdr); \ desc_post[i] = frag->rr_desc; \ }\ ret = VAPI_post_srq( nic, \ srq_hndl, \ cnt, \ desc_post, \ &rwqe_posted); \ if(VAPI_OK != ret) { \ BTL_ERROR(("error posting receive descriptors to shared receive queue: %s",\ VAPI_strerror(ret))); \ } else if(rwqe_posted < 1) { \ BTL_ERROR(("error posting receive descriptors to shared receive queue, number of entries posted is %d", rwqe_posted)); \ } else {\ OPAL_THREAD_ADD32(srr_posted, cnt); \ }\ } while(0);\ } struct mca_btl_mvapi_frag_t; extern mca_btl_mvapi_module_t mca_btl_mvapi_module; /** * Register IB component parameters with the MCA framework */ extern int mca_btl_mvapi_component_open(void); /** * Any final cleanup before being unloaded. */ extern int mca_btl_mvapi_component_close(void); /** * IB component initialization. * * @param num_btl_modules (OUT) Number of BTLs returned in BTL array. * @param allow_multi_user_threads (OUT) Flag indicating wether BTL supports user threads (TRUE) * @param have_hidden_threads (OUT) Flag indicating wether BTL uses threads (TRUE) * * (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) publish BTL addressing info * */ extern mca_btl_base_module_t** mca_btl_mvapi_component_init( int *num_btl_modules, bool allow_multi_user_threads, bool have_hidden_threads ); /** * IB component progress. */ extern int mca_btl_mvapi_component_progress( void ); /** * Register a callback function that is called on receipt * of a fragment. * * @param btl (IN) BTL module * @return Status indicating if cleanup was successful * * When the process list changes, the PML notifies the BTL of the * change, to provide the opportunity to cleanup or release any * resources associated with the peer. */ int mca_btl_mvapi_register( struct mca_btl_base_module_t* btl, mca_btl_base_tag_t tag, mca_btl_base_module_recv_cb_fn_t cbfunc, void* cbdata ); /** * Cleanup any resources held by the BTL. * * @param btl BTL instance. * @return OMPI_SUCCESS or error status on failure. */ extern int mca_btl_mvapi_finalize( struct mca_btl_base_module_t* btl ); /** * PML->BTL notification of change in the process list. * * @param btl (IN) * @param nprocs (IN) Number of processes * @param procs (IN) Set of processes * @param peers (OUT) Set of (optional) peer addressing info. * @param peers (IN/OUT) Set of processes that are reachable via this BTL. * @return OMPI_SUCCESS or error status on failure. * */ extern int mca_btl_mvapi_add_procs( struct mca_btl_base_module_t* btl, size_t nprocs, struct ompi_proc_t **procs, struct mca_btl_base_endpoint_t** peers, ompi_bitmap_t* reachable ); /** * PML->BTL notification of change in the process list. * * @param btl (IN) BTL instance * @param nproc (IN) Number of processes. * @param procs (IN) Set of processes. * @param peers (IN) Set of peer data structures. * @return Status indicating if cleanup was successful * */ extern int mca_btl_mvapi_del_procs( struct mca_btl_base_module_t* btl, size_t nprocs, struct ompi_proc_t **procs, struct mca_btl_base_endpoint_t** peers ); /** * PML->BTL Initiate a send of the specified size. * * @param btl (IN) BTL instance * @param btl_base_peer (IN) BTL peer addressing * @param send_request (IN/OUT) Send request (allocated by PML via mca_btl_base_request_alloc_fn_t) * @param size (IN) Number of bytes PML is requesting BTL to deliver * @param flags (IN) Flags that should be passed to the peer via the message header. * @param request (OUT) OMPI_SUCCESS if the BTL was able to queue one or more fragments */ extern int mca_btl_mvapi_send( struct mca_btl_base_module_t* btl, struct mca_btl_base_endpoint_t* btl_peer, struct mca_btl_base_descriptor_t* descriptor, mca_btl_base_tag_t tag ); /** * PML->BTL Initiate a put of the specified size. * * @param btl (IN) BTL instance * @param btl_base_peer (IN) BTL peer addressing * @param send_request (IN/OUT) Send request (allocated by PML via mca_btl_base_request_alloc_fn_t) * @param size (IN) Number of bytes PML is requesting BTL to deliver * @param flags (IN) Flags that should be passed to the peer via the message header. * @param request (OUT) OMPI_SUCCESS if the BTL was able to queue one or more fragments */ extern int mca_btl_mvapi_put( struct mca_btl_base_module_t* btl, struct mca_btl_base_endpoint_t* btl_peer, struct mca_btl_base_descriptor_t* decriptor ); /** * PML->BTL Initiate a get of the specified size. * * @param btl (IN) BTL instance * @param btl_base_peer (IN) BTL peer addressing * @param send_request (IN/OUT) Send request (allocated by PML via mca_btl_base_request_alloc_fn_t) * @param size (IN) Number of bytes PML is requesting BTL to deliver * @param flags (IN) Flags that should be passed to the peer via the message header. * @param request (OUT) OMPI_SUCCESS if the BTL was able to queue one or more fragments */ extern int mca_btl_mvapi_get( struct mca_btl_base_module_t* btl, struct mca_btl_base_endpoint_t* btl_peer, struct mca_btl_base_descriptor_t* decriptor ); /** * Allocate a descriptor. * * @param btl (IN) BTL module * @param size (IN) Requested descriptor size. */ extern mca_btl_base_descriptor_t* mca_btl_mvapi_alloc( struct mca_btl_base_module_t* btl, size_t size); /** * Return a segment allocated by this BTL. * * @param btl (IN) BTL module * @param descriptor (IN) Allocated descriptor. */ extern int mca_btl_mvapi_free( struct mca_btl_base_module_t* btl, mca_btl_base_descriptor_t* des); /** * Pack data and return a descriptor that can be * used for send/put. * * @param btl (IN) BTL module * @param peer (IN) BTL peer addressing */ mca_btl_base_descriptor_t* mca_btl_mvapi_prepare_src( struct mca_btl_base_module_t* btl, struct mca_btl_base_endpoint_t* peer, mca_mpool_base_registration_t* registration, struct ompi_convertor_t* convertor, size_t reserve, size_t* size ); /** * Allocate a descriptor initialized for RDMA write. * * @param btl (IN) BTL module * @param peer (IN) BTL peer addressing */ extern mca_btl_base_descriptor_t* mca_btl_mvapi_prepare_dst( struct mca_btl_base_module_t* btl, struct mca_btl_base_endpoint_t* peer, mca_mpool_base_registration_t* registration, struct ompi_convertor_t* convertor, size_t reserve, size_t* size); /** * Return a send fragment to the modules free list. * * @param btl (IN) BTL instance * @param frag (IN) IB send fragment * */ extern void mca_btl_mvapi_send_frag_return( struct mca_btl_base_module_t* btl, struct mca_btl_mvapi_frag_t* ); int mca_btl_mvapi_module_init(mca_btl_mvapi_module_t* mvapi_btl); #if defined(c_plusplus) || defined(__cplusplus) } #endif #endif