879 строки
38 KiB
C
879 строки
38 KiB
C
/*
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* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2004-2005 The University of Tennessee and The University
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* of Tennessee Research Foundation. All rights
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* 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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#include "ompi_config.h"
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#include "ompi/include/constants.h"
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#include "opal/event/event.h"
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#include "opal/util/if.h"
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#include "opal/util/argv.h"
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#include "opal/util/output.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/include/sys/timer.h"
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#include "mca/base/mca_base_param.h"
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#include "mca/errmgr/errmgr.h"
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#include "mca/mpool/base/base.h"
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#include "btl_openib.h"
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#include "btl_openib_frag.h"
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#include "btl_openib_endpoint.h"
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#include "mca/btl/base/base.h"
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#include "mca/btl/base/btl_base_error.h"
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#include "datatype/convertor.h"
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#include "mca/mpool/mpool.h"
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#include <sysfs/libsysfs.h>
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#include <infiniband/verbs.h>
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#include <errno.h>
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#include <string.h> /* for strerror()*/
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#include "mca/pml/base/pml_base_module_exchange.h"
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mca_btl_openib_component_t mca_btl_openib_component = {
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{
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/* First, the mca_base_component_t struct containing meta information
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about the component itself */
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{
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/* Indicate that we are a pml v1.0.0 component (which also implies a
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specific MCA version) */
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MCA_BTL_BASE_VERSION_1_0_0,
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"openib", /* MCA component name */
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OMPI_MAJOR_VERSION, /* MCA component major version */
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OMPI_MINOR_VERSION, /* MCA component minor version */
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OMPI_RELEASE_VERSION, /* MCA component release version */
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mca_btl_openib_component_open, /* component open */
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mca_btl_openib_component_close /* component close */
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},
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/* Next the MCA v1.0.0 component meta data */
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{
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/* Whether the component is checkpointable or not */
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false
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},
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mca_btl_openib_component_init,
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mca_btl_openib_component_progress,
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}
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};
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/*
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* utility routines for parameter registration
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*/
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static inline void mca_btl_openib_param_register_string(
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const char* param_name,
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const char* param_desc,
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const char* default_value,
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char** out_value)
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{
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mca_base_param_reg_string(&mca_btl_openib_component.super.btl_version,
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param_name,
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param_desc,
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false,
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false,
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default_value,
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out_value);
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}
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static inline void mca_btl_openib_param_register_int(
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const char* param_name,
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const char* param_desc,
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int default_value,
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int* out_value)
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{
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mca_base_param_reg_int(&mca_btl_openib_component.super.btl_version,
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param_name,
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param_desc,
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false,
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false,
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default_value,
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out_value);
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}
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/*
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* Called by MCA framework to open the component, registers
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* component parameters.
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*/
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int mca_btl_openib_component_open(void)
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{
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/* initialize state */
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mca_btl_openib_component.ib_num_btls=0;
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mca_btl_openib_component.openib_btls=NULL;
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/* initialize objects */
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OBJ_CONSTRUCT(&mca_btl_openib_component.ib_procs, opal_list_t);
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/* register IB component parameters */
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mca_btl_openib_param_register_int ("free_list_num", "intial size of free lists",
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8, &mca_btl_openib_component.ib_free_list_num);
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mca_btl_openib_param_register_int ("free_list_max", "maximum size of free lists",
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-1, &mca_btl_openib_component.ib_free_list_max);
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mca_btl_openib_param_register_int ("free_list_inc", "increment size of free lists",
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32, &mca_btl_openib_component.ib_free_list_inc);
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mca_btl_openib_param_register_string("mpool", "name of the memory pool to be used",
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"openib", &mca_btl_openib_component.ib_mpool_name);
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mca_btl_openib_param_register_int("reg_mru_len", "length of the registration cache most recently used list",
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16, (int*) &mca_btl_openib_component.reg_mru_len);
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mca_btl_openib_param_register_int("use_srq", "if 1 use the IB shared receive queue to post receive descriptors",
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0, (int*) &mca_btl_openib_component.use_srq);
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mca_btl_openib_param_register_int("ib_cq_size", "size of the IB completion queue",
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1000, (int*) &mca_btl_openib_component.ib_cq_size);
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mca_btl_openib_param_register_int("ib_sg_list_size", "size of IB segment list",
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1, (int*) &mca_btl_openib_component.ib_sg_list_size);
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mca_btl_openib_param_register_int("ib_pkey_ix", "IB pkey index",
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0, (int*) &mca_btl_openib_component.ib_pkey_ix);
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mca_btl_openib_param_register_int("ib_psn", "IB Packet sequence starting number",
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0, (int*) &mca_btl_openib_component.ib_psn);
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mca_btl_openib_param_register_int("ib_qp_ous_rd_atom", "IB outstanding atomic reads",
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4, (int*) &mca_btl_openib_component.ib_qp_ous_rd_atom);
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mca_btl_openib_param_register_int("ib_mtu", "IB MTU",
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IBV_MTU_1024, (int*) &mca_btl_openib_component.ib_mtu);
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mca_btl_openib_param_register_int("ib_min_rnr_timer", "IB min rnr timer",
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5, (int*) &mca_btl_openib_component.ib_min_rnr_timer);
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mca_btl_openib_param_register_int("ib_timeout", "IB transmit timeout",
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10, (int*) &mca_btl_openib_component.ib_timeout);
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mca_btl_openib_param_register_int("ib_retry_count", "IB transmit retry count",
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7, (int*) &mca_btl_openib_component.ib_retry_count);
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mca_btl_openib_param_register_int("ib_rnr_retry", "IB rnr retry",
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7, (int*) &mca_btl_openib_component.ib_rnr_retry);
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mca_btl_openib_param_register_int("ib_max_rdma_dst_ops", "IB max rdma destination operations",
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4, (int*) &mca_btl_openib_component.ib_max_rdma_dst_ops);
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mca_btl_openib_param_register_int("ib_service_level", "IB service level",
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0, (int*) &mca_btl_openib_component.ib_service_level);
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mca_btl_openib_param_register_int("ib_static_rate", "IB static rate",
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0, (int*) &mca_btl_openib_component.ib_static_rate);
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mca_btl_openib_param_register_int("ib_src_path_bits", "IB source path bits",
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0, (int*) &mca_btl_openib_component.ib_src_path_bits);
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mca_btl_openib_param_register_int ("exclusivity", "BTL exclusivity",
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MCA_BTL_EXCLUSIVITY_DEFAULT, (int*) &mca_btl_openib_module.super.btl_exclusivity);
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mca_btl_openib_param_register_int("rd_num", "number of receive descriptors to post to a QP",
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8, (int*) &mca_btl_openib_component.rd_num);
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mca_btl_openib_param_register_int("rd_low", "low water mark before reposting occurs",
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6, (int*) &mca_btl_openib_component.rd_low);
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mca_btl_openib_param_register_int("rd_win", "window size at which generate explicity credit message",
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4, (int*) &mca_btl_openib_component.rd_win);
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mca_btl_openib_component.rd_rsv = ((mca_btl_openib_component.rd_num<<1)-1) / mca_btl_openib_component.rd_win;
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mca_btl_openib_param_register_int("srq_rd_max", "Max number of receive descriptors posted per SRQ.",
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1000, (int*) &mca_btl_openib_component.srq_rd_max);
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mca_btl_openib_param_register_int("srq_rd_per_peer", "Number of receive descriptors posted per peer. (SRQ)",
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16, (int*) &mca_btl_openib_component.srq_rd_per_peer);
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mca_btl_openib_param_register_int("srq_sd_max", "Maximum number of send descriptors posted. (SRQ)",
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8, &mca_btl_openib_component.srq_sd_max);
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mca_btl_openib_param_register_int ("eager_limit", "eager send limit",
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(32*1024),(int*) &mca_btl_openib_module.super.btl_eager_limit);
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mca_btl_openib_param_register_int ("min_send_size", "minimum send size",
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(64*1024),(int*) &mca_btl_openib_module.super.btl_min_send_size);
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mca_btl_openib_param_register_int ("max_send_size", "maximum send size",
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(64*1024), (int*) &mca_btl_openib_module.super.btl_max_send_size);
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mca_btl_openib_param_register_int("min_rdma_size", "minimum rdma size",
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1024*1024, (int*) &mca_btl_openib_module.super.btl_min_rdma_size);
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mca_btl_openib_param_register_int("max_rdma_size", "maximium rdma size",
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1024*1024, (int*) &mca_btl_openib_module.super.btl_max_rdma_size);
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mca_btl_openib_param_register_int("flags", "BTL flags, SEND=0, PUT=1, GET=2",
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MCA_BTL_FLAGS_PUT, (int*) &mca_btl_openib_module.super.btl_flags);
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mca_btl_openib_param_register_int("bandwidth", "Approximate maximum bandwidth of interconnect",
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800, (int*) &mca_btl_openib_module.super.btl_bandwidth);
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mca_btl_openib_component.max_send_size = mca_btl_openib_module.super.btl_max_send_size;
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mca_btl_openib_component.eager_limit = mca_btl_openib_module.super.btl_eager_limit;
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return OMPI_SUCCESS;
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}
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/*
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* component cleanup - sanity checking of queue lengths
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*/
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int mca_btl_openib_component_close(void)
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{
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return OMPI_SUCCESS;
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}
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/*
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* Register OPENIB port information. The MCA framework
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* will make this available to all peers.
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*/
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static int
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mca_btl_openib_modex_send(void)
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{
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int rc;
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size_t i;
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size_t size;
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mca_btl_openib_port_info_t *ports = NULL;
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size = mca_btl_openib_component.ib_num_btls * sizeof (mca_btl_openib_port_info_t);
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if (size != 0) {
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ports = (mca_btl_openib_port_info_t *)malloc (size);
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if (NULL == ports) {
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return OMPI_ERR_OUT_OF_RESOURCE;
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}
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for (i = 0; i < mca_btl_openib_component.ib_num_btls; i++) {
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mca_btl_openib_module_t *btl = &mca_btl_openib_component.openib_btls[i];
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ports[i] = btl->port_info;
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}
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}
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rc = mca_pml_base_modex_send (&mca_btl_openib_component.super.btl_version, ports, size);
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if (NULL != ports) {
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free (ports);
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}
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return rc;
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}
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/*
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* Callback function on control message.
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*/
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static void mca_btl_openib_control(
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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_descriptor_t* descriptor,
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void* cbdata)
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{
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/* dont return credits used for control messages */
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mca_btl_openib_frag_t* frag = (mca_btl_openib_frag_t*)descriptor;
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mca_btl_openib_endpoint_t* endpoint = frag->endpoint;
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if(frag->size == mca_btl_openib_component.eager_limit) {
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OPAL_THREAD_ADD32(&endpoint->rd_credits_hp, -1);
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} else {
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OPAL_THREAD_ADD32(&endpoint->rd_credits_lp, -1);
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}
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}
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/*
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* IB component initialization:
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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) register BTL parameters with the MCA
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*/
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mca_btl_base_module_t** mca_btl_openib_component_init(int *num_btl_modules,
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bool enable_progress_threads,
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bool enable_mpi_threads)
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{
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struct ibv_device **ib_devs;
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uint32_t num_devs;
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mca_btl_base_module_t** btls;
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uint32_t i,j, length;
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struct mca_mpool_base_resources_t mpool_resources;
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opal_list_t btl_list;
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mca_btl_openib_module_t * openib_btl;
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mca_btl_base_selected_module_t* ib_selected;
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opal_list_item_t* item;
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struct dlist *dev_list;
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struct ibv_device* ib_dev;
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unsigned short seedv[3];
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/* initialization */
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*num_btl_modules = 0;
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num_devs = 0;
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seedv[0] = orte_process_info.my_name->vpid;
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seedv[1] = opal_sys_timer_get_cycles();
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seedv[2] = opal_sys_timer_get_cycles();
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seed48(seedv);
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#if OMPI_MCA_BTL_OPENIB_HAVE_DEVICE_LIST
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ib_devs = ibv_get_device_list(&num_devs);
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#else
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/* Determine the number of hca's available on the host */
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dev_list = ibv_get_devices();
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if (NULL == dev_list) {
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mca_btl_base_error_no_nics("OpenIB", "HCA");
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mca_btl_openib_component.ib_num_btls = 0;
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mca_btl_openib_modex_send();
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return NULL;
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}
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dlist_start(dev_list);
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dlist_for_each_data(dev_list, ib_dev, struct ibv_device)
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num_devs++;
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#endif
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if(0 == num_devs) {
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mca_btl_base_error_no_nics("OpenIB", "HCA");
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mca_btl_openib_modex_send();
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return NULL;
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}
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#if OMPI_MCA_BTL_OPENIB_HAVE_DEVICE_LIST == 0
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/* Allocate space for the ib devices */
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ib_devs = (struct ibv_device**) malloc(num_devs * sizeof(struct ibv_dev*));
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if(NULL == ib_devs) {
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ORTE_ERROR_LOG(ORTE_ERR_OUT_OF_RESOURCE);
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return NULL;
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}
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dlist_start(dev_list);
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i = 0;
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dlist_for_each_data(dev_list, ib_dev, struct ibv_device)
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ib_devs[i++] = ib_dev;
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#endif
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/** We must loop through all the hca id's, get there handles and
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for each hca we query the number of ports on the hca and set up
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a distinct btl module for each hca port */
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OBJ_CONSTRUCT(&btl_list, opal_list_t);
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OBJ_CONSTRUCT(&mca_btl_openib_component.ib_lock, opal_mutex_t);
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for(i = 0; i < num_devs; i++){
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struct ibv_device_attr ib_dev_attr;
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struct ibv_context* ib_dev_context;
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ib_dev = ib_devs[i];
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ib_dev_context = ibv_open_device(ib_dev);
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if(!ib_dev_context) {
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BTL_ERROR((" error obtaining device context for %s errno says %s\n", ibv_get_device_name(ib_dev), strerror(errno)));
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return NULL;
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}
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if(ibv_query_device(ib_dev_context, &ib_dev_attr)){
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BTL_ERROR(("error obtaining device attributes for %s errno says %s\n", ibv_get_device_name(ib_dev), strerror(errno)));
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return NULL;
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}
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/* Note ports are 1 based hence j = 1 */
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for(j = 1; j <= ib_dev_attr.phys_port_cnt; j++){
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struct ibv_port_attr* ib_port_attr;
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ib_port_attr = (struct ibv_port_attr*) malloc(sizeof(struct ibv_port_attr));
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if(ibv_query_port(ib_dev_context, (uint8_t) j, ib_port_attr)){
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BTL_ERROR(("error getting port attributes for device %s port number %d errno says %s",
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ibv_get_device_name(ib_dev), j, strerror(errno)));
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return NULL;
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}
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if( IBV_PORT_ACTIVE == ib_port_attr->state ){
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openib_btl = (mca_btl_openib_module_t*) malloc(sizeof(mca_btl_openib_module_t));
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memcpy(openib_btl, &mca_btl_openib_module, sizeof(mca_btl_openib_module));
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ib_selected = OBJ_NEW(mca_btl_base_selected_module_t);
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ib_selected->btl_module = (mca_btl_base_module_t*) openib_btl;
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openib_btl->ib_dev = ib_dev;
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openib_btl->ib_dev_context = ib_dev_context;
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openib_btl->port_num = (uint8_t) j;
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openib_btl->ib_port_attr = ib_port_attr;
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openib_btl->port_info.subnet = ib_port_attr->sm_lid; /* store the sm_lid for multi-nic support */
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openib_btl->ib_reg[MCA_BTL_TAG_BTL].cbfunc = mca_btl_openib_control;
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openib_btl->ib_reg[MCA_BTL_TAG_BTL].cbdata = NULL;
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opal_list_append(&btl_list, (opal_list_item_t*) ib_selected);
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mca_btl_openib_component.ib_num_btls ++;
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}
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else{
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free(ib_port_attr);
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}
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}
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}
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/* 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];
|
|
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->recv_free_eager, ompi_free_list_t);
|
|
OBJ_CONSTRUCT(&openib_btl->recv_free_max, ompi_free_list_t);
|
|
|
|
if(mca_btl_openib_module_init(openib_btl) != OMPI_SUCCESS) {
|
|
#if OMPI_MCA_BTL_OPENIB_HAVE_DEVICE_LIST
|
|
ibv_free_device_list(ib_devs);
|
|
#else
|
|
free(ib_devs);
|
|
#endif
|
|
return NULL;
|
|
}
|
|
|
|
mpool_resources.ib_pd = openib_btl->ib_pd;
|
|
|
|
/* initialize the memory pool using the hca */
|
|
openib_btl->super.btl_mpool =
|
|
mca_mpool_base_module_create(mca_btl_openib_component.ib_mpool_name,
|
|
&openib_btl->super,
|
|
&mpool_resources);
|
|
|
|
if(NULL == openib_btl->super.btl_mpool) {
|
|
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->super.btl_mpool);
|
|
|
|
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->super.btl_mpool);
|
|
|
|
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->super.btl_mpool);
|
|
|
|
/* 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->super.btl_mpool);
|
|
|
|
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->super.btl_mpool);
|
|
|
|
/* Initialize the rd_desc_post array for posting of rr*/
|
|
openib_btl->rd_desc_post = (struct ibv_recv_wr *)
|
|
malloc(((mca_btl_openib_component.rd_num + mca_btl_openib_component.rd_rsv) * sizeof(struct ibv_recv_wr)));
|
|
|
|
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;
|
|
}
|
|
|
|
/*
|
|
* IB component progress.
|
|
*/
|
|
|
|
int mca_btl_openib_component_progress()
|
|
{
|
|
uint32_t i;
|
|
int count = 0,ne;
|
|
int32_t credits;
|
|
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];
|
|
|
|
/* 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) {
|
|
BTL_ERROR(("error polling HP CQ with status %d for wr_id %llu opcode %d\n",
|
|
wc.status, wc.wr_id, wc.opcode));
|
|
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_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) {
|
|
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 &&
|
|
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;
|
|
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_eager), (opal_list_item_t*) frag);
|
|
|
|
/* 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
|
|
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( OPAL_THREAD_ADD32(&endpoint->sd_tokens_hp, credits) > 0) {
|
|
|
|
while(!opal_list_is_empty(&endpoint->pending_frags_hp) &&
|
|
endpoint->sd_wqe_hp > 0 && endpoint->sd_tokens_hp > 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 &&
|
|
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
|
|
count++;
|
|
break;
|
|
|
|
case IBV_WC_RDMA_READ:
|
|
case IBV_WC_RDMA_WRITE:
|
|
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) {
|
|
BTL_ERROR(("error polling LP CQ with status %d for wr_id %llu opcode %d",
|
|
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), (opal_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;
|
|
}
|