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/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
/*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2019 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
* University of Stuttgart. All rights reserved.
* Copyright (c) 2004-2005 The Regents of the University of California.
* All rights reserved.
* Copyright (c) 2014-2015 Los Alamos National Security, LLC. All rights
* reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
/**
* @file
*/
#ifndef MCA_PML_OB1_RDMAFRAG_H
#define MCA_PML_OB1_RDMAFRAG_H
#include "pml_ob1_hdr.h"
BEGIN_C_DECLS
typedef enum {
MCA_PML_OB1_RDMA_PUT,
MCA_PML_OB1_RDMA_GET
} mca_pml_ob1_rdma_state_t;
struct mca_pml_ob1_rdma_frag_t;
typedef void (*mca_pml_ob1_rdma_frag_callback_t)(struct mca_pml_ob1_rdma_frag_t *frag, int64_t rdma_length);
/**
* Used to keep track of local and remote RDMA operations.
*/
struct mca_pml_ob1_rdma_frag_t {
opal_free_list_item_t super;
mca_bml_base_btl_t *rdma_bml;
mca_pml_ob1_hdr_t rdma_hdr;
mca_pml_ob1_rdma_state_t rdma_state;
size_t rdma_length; /* how much the fragment will transfer */
opal_atomic_size_t rdma_bytes_remaining; /* how much is left to be transferred */
void *rdma_req;
uint32_t retries;
mca_pml_ob1_rdma_frag_callback_t cbfunc;
uint64_t rdma_offset;
void *local_address;
mca_btl_base_registration_handle_t *local_handle;
uint64_t remote_address;
uint8_t remote_handle[MCA_BTL_REG_HANDLE_MAX_SIZE];
};
typedef struct mca_pml_ob1_rdma_frag_t mca_pml_ob1_rdma_frag_t;
OBJ_CLASS_DECLARATION(mca_pml_ob1_rdma_frag_t);
#define MCA_PML_OB1_RDMA_FRAG_ALLOC(frag) \
do { \
frag = (mca_pml_ob1_rdma_frag_t *) \
opal_free_list_wait (&mca_pml_ob1.rdma_frags); \
} while(0)
#define MCA_PML_OB1_RDMA_FRAG_RETURN(frag) \
do { \
if (frag->local_handle) { \
mca_bml_base_deregister_mem (frag->rdma_bml, frag->local_handle); \
frag->local_handle = NULL; \
} \
opal_free_list_return (&mca_pml_ob1.rdma_frags, \
(opal_free_list_item_t*)frag); \
} while (0)
END_C_DECLS
#endif
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