389 строки
12 KiB
C
389 строки
12 KiB
C
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/*
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* Copyright (c) 2004-2005 The Trustees of Indiana University.
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* All rights reserved.
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* Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
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* All rights reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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/**
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* @file
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*/
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#ifndef MCA_PTL_IB_H
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#define MCA_PTL_IB_H
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/* Standard system includes */
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#include <sys/types.h>
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#include <string.h>
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/* Open MPI includes */
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#include "class/ompi_free_list.h"
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#include "class/ompi_bitmap.h"
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#include "opal/event/event.h"
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#include "mca/pml/pml.h"
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#include "mca/btl/btl.h"
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#include "opal/util/output.h"
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#include "mca/mpool/mpool.h"
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#include "btl_openib_error.h"
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#include "mca/btl/btl.h"
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#include "mca/btl/base/base.h"
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#if defined(c_plusplus) || defined(__cplusplus)
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extern "C" {
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#endif
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#define MCA_BTL_IB_LEAVE_PINNED 1
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/**
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* Infiniband (IB) BTL component.
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*/
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struct mca_btl_openib_component_t {
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mca_btl_base_component_1_0_0_t super; /**< base BTL component */
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uint32_t ib_num_btls;
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/**< number of hcas available to the IB component */
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struct mca_btl_openib_module_t *mvapi_btls;
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/**< array of available PTLs */
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int ib_free_list_num;
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/**< initial size of free lists */
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int ib_free_list_max;
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/**< maximum size of free lists */
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int ib_free_list_inc;
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/**< number of elements to alloc when growing free lists */
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opal_list_t ib_procs;
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/**< list of ib proc structures */
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opal_event_t ib_send_event;
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/**< event structure for sends */
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opal_event_t ib_recv_event;
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/**< event structure for recvs */
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opal_mutex_t ib_lock;
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/**< lock for accessing module state */
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int ib_mem_registry_hints_log_size;
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/**< log2 size of hints hash array used by memory registry */
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char* ib_mpool_name;
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/**< name of ib memory pool */
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uint32_t ib_rr_buf_max;
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/**< the maximum number of posted rr */
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uint32_t ib_rr_buf_min;
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/**< the minimum number of posted rr */
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size_t eager_limit;
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size_t max_send_size;
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uint32_t leave_pinned;
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uint32_t reg_mru_len;
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}; typedef struct mca_btl_openib_component_t mca_btl_openib_component_t;
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extern mca_btl_openib_component_t mca_btl_openib_component;
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typedef mca_btl_base_recv_reg_t mca_btl_openib_recv_reg_t;
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/**
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* IB PTL Interface
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*/
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struct mca_btl_openib_module_t {
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mca_btl_base_module_t super; /**< base PTL interface */
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bool btl_inited;
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mca_btl_openib_recv_reg_t ib_reg[256];
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VAPI_hca_id_t hca_id; /**< ID of HCA */
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int port; /**< ID of the PORT */
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struct ibv_device; /* the ib device */
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VAPI_hca_hndl_t nic; /**< NIC handle */
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VAPI_pd_hndl_t ptag; /**< Protection Domain tag */
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VAPI_cq_hndl_t cq_hndl_high; /**< High Priority Completion Queue handle */
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VAPI_cq_hndl_t cq_hndl_low; /**< Low Priority Completion Queue handle */
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EVAPI_async_handler_hndl_t async_handler;
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/**< Async event handler used to detect weird/unknown events */
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ompi_free_list_t send_free_eager; /**< free list of eager buffer descriptors */
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ompi_free_list_t send_free_max; /**< free list of max buffer descriptors */
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ompi_free_list_t send_free_frag; /**< free list of frags only... used for pining memory */
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ompi_free_list_t recv_free_eager; /**< High priority free list of buffer descriptors */
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ompi_free_list_t recv_free_max; /**< Low priority free list of buffer descriptors */
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opal_list_t reg_mru_list; /**< a most recently used list of mca_mpool_mvapi_registration_t
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entries, this allows us to keep a working set of memory pinned */
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opal_list_t repost; /**< list of buffers to repost */
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opal_mutex_t ib_lock; /**< module level lock */
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mca_mpool_base_module_t* ib_pool; /**< ib memory pool */
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uint32_t rr_posted_high; /**< number of high priority rr posted to the nic*/
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uint32_t rr_posted_low; /**< number of low priority rr posted to the nic*/
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VAPI_rr_desc_t* rr_desc_post;
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/**< an array to allow posting of rr in one swoop */
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size_t ib_inline_max; /**< max size of inline send*/
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size_t ib_pin_min; /**< min size to pin memory*/
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uint32_t ib_cq_size; /**< Max outstanding CQE on the CQ */
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uint32_t ib_wq_size; /**< Max outstanding WR on the WQ */
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uint32_t ib_sg_list_size; /**< Max scatter/gather descriptor entries on the WQ*/
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uint32_t ib_pkey_ix;
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uint32_t ib_psn;
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uint32_t ib_qp_ous_rd_atom;
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uint32_t ib_mtu;
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uint32_t ib_min_rnr_timer;
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uint32_t ib_timeout;
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uint32_t ib_retry_count;
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uint32_t ib_rnr_retry;
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uint32_t ib_max_rdma_dst_ops;
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uint32_t ib_service_level;
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uint32_t ib_static_rate;
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uint32_t ib_src_path_bits;
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}; typedef struct mca_btl_openib_module_t mca_btl_openib_module_t;
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struct mca_btl_openib_frag_t;
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extern mca_btl_openib_module_t mca_btl_openib_module;
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/**
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* Register IB component parameters with the MCA framework
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*/
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extern int mca_btl_openib_component_open(void);
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/**
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* Any final cleanup before being unloaded.
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*/
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extern int mca_btl_openib_component_close(void);
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/**
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* IB component initialization.
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*
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* @param num_btl_modules (OUT) Number of BTLs returned in BTL array.
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* @param allow_multi_user_threads (OUT) Flag indicating wether BTL supports user threads (TRUE)
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* @param have_hidden_threads (OUT) Flag indicating wether BTL uses threads (TRUE)
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*
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* (1) read interface list from kernel and compare against component parameters
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* then create a BTL instance for selected interfaces
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* (2) setup IB listen socket for incoming connection attempts
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* (3) publish BTL addressing info
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*
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*/
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extern mca_btl_base_module_t** mca_btl_openib_component_init(
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int *num_btl_modules,
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bool allow_multi_user_threads,
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bool have_hidden_threads
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);
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/**
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* IB component progress.
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*/
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extern int mca_btl_openib_component_progress(
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void
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);
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/**
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* Register a callback function that is called on receipt
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* of a fragment.
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*
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* @param btl (IN) BTL module
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* @return Status indicating if cleanup was successful
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*
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* When the process list changes, the PML notifies the BTL of the
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* change, to provide the opportunity to cleanup or release any
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* resources associated with the peer.
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*/
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int mca_btl_openib_register(
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struct mca_btl_base_module_t* btl,
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mca_btl_base_tag_t tag,
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mca_btl_base_module_recv_cb_fn_t cbfunc,
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void* cbdata
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);
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/**
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* Cleanup any resources held by the BTL.
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*
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* @param btl BTL instance.
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* @return OMPI_SUCCESS or error status on failure.
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*/
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extern int mca_btl_openib_finalize(
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struct mca_btl_base_module_t* btl
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);
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/**
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* PML->BTL notification of change in the process list.
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*
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* @param btl (IN)
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* @param nprocs (IN) Number of processes
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* @param procs (IN) Set of processes
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* @param peers (OUT) Set of (optional) peer addressing info.
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* @param peers (IN/OUT) Set of processes that are reachable via this BTL.
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* @return OMPI_SUCCESS or error status on failure.
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*
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*/
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extern int mca_btl_openib_add_procs(
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struct mca_btl_base_module_t* btl,
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size_t nprocs,
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struct ompi_proc_t **procs,
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struct mca_btl_base_endpoint_t** peers,
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ompi_bitmap_t* reachable
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);
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/**
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* PML->BTL notification of change in the process list.
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*
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* @param btl (IN) BTL instance
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* @param nproc (IN) Number of processes.
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* @param procs (IN) Set of processes.
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* @param peers (IN) Set of peer data structures.
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* @return Status indicating if cleanup was successful
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*
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*/
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extern int mca_btl_openib_del_procs(
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struct mca_btl_base_module_t* btl,
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size_t nprocs,
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struct ompi_proc_t **procs,
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struct mca_btl_base_endpoint_t** peers
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);
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/**
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* PML->BTL Initiate a send of the specified size.
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*
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* @param btl (IN) BTL instance
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* @param btl_base_peer (IN) BTL peer addressing
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* @param send_request (IN/OUT) Send request (allocated by PML via mca_btl_base_request_alloc_fn_t)
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* @param size (IN) Number of bytes PML is requesting BTL to deliver
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* @param flags (IN) Flags that should be passed to the peer via the message header.
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* @param request (OUT) OMPI_SUCCESS if the BTL was able to queue one or more fragments
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*/
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extern int mca_btl_openib_send(
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struct mca_btl_base_module_t* btl,
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struct mca_btl_base_endpoint_t* btl_peer,
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struct mca_btl_base_descriptor_t* descriptor,
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mca_btl_base_tag_t tag
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);
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/**
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* PML->BTL Initiate a put of the specified size.
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*
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* @param btl (IN) BTL instance
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* @param btl_base_peer (IN) BTL peer addressing
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* @param send_request (IN/OUT) Send request (allocated by PML via mca_btl_base_request_alloc_fn_t)
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* @param size (IN) Number of bytes PML is requesting BTL to deliver
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* @param flags (IN) Flags that should be passed to the peer via the message header.
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* @param request (OUT) OMPI_SUCCESS if the BTL was able to queue one or more fragments
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*/
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extern int mca_btl_openib_put(
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struct mca_btl_base_module_t* btl,
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struct mca_btl_base_endpoint_t* btl_peer,
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struct mca_btl_base_descriptor_t* decriptor
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);
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/**
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* Allocate a descriptor.
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*
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* @param btl (IN) BTL module
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* @param size (IN) Requested descriptor size.
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*/
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extern mca_btl_base_descriptor_t* mca_btl_openib_alloc(
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struct mca_btl_base_module_t* btl,
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size_t size);
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/**
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* Return a segment allocated by this BTL.
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*
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* @param btl (IN) BTL module
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* @param descriptor (IN) Allocated descriptor.
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*/
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extern int mca_btl_openib_free(
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struct mca_btl_base_module_t* btl,
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mca_btl_base_descriptor_t* des);
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/**
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* Pack data and return a descriptor that can be
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* used for send/put.
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*
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* @param btl (IN) BTL module
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* @param peer (IN) BTL peer addressing
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*/
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mca_btl_base_descriptor_t* mca_btl_openib_prepare_src(
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struct mca_btl_base_module_t* btl,
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struct mca_btl_base_endpoint_t* peer,
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mca_mpool_base_registration_t* registration,
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struct ompi_convertor_t* convertor,
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size_t reserve,
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size_t* size
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);
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/**
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* Allocate a descriptor initialized for RDMA write.
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*
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* @param btl (IN) BTL module
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* @param peer (IN) BTL peer addressing
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*/
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extern mca_btl_base_descriptor_t* mca_btl_openib_prepare_dst(
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struct mca_btl_base_module_t* btl,
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struct mca_btl_base_endpoint_t* peer,
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mca_mpool_base_registration_t* registration,
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struct ompi_convertor_t* convertor,
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size_t reserve,
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size_t* size);
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/**
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* Return a send fragment to the modules free list.
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*
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* @param btl (IN) BTL instance
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* @param frag (IN) IB send fragment
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*
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*/
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extern void mca_btl_openib_send_frag_return(
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struct mca_btl_base_module_t* btl,
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struct mca_btl_openib_frag_t*
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);
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int mca_btl_openib_module_init(mca_btl_openib_module_t* mvapi_btl);
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#if defined(c_plusplus) || defined(__cplusplus)
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}
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#endif
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#endif
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