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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) 2004-2006 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) 2011-2015 Los Alamos National Security, LLC.
* All rights reserved.
* Copyright (c) 2014 Bull SAS. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#ifndef OPAL_BTL_PORTALS4_FRAG_H
#define OPAL_BTL_PORTALS4_FRAG_H
#include "opal_config.h"
#include "btl_portals4.h"
BEGIN_C_DECLS
struct mca_btl_portals4_segment_t {
mca_btl_base_segment_t base;
ptl_match_bits_t key;
};
typedef struct mca_btl_portals4_segment_t mca_btl_portals4_segment_t;
/**
* Portals send fragment derived type
*/
struct mca_btl_portals4_frag_t {
mca_btl_base_descriptor_t base;
mca_btl_portals4_segment_t segments[1];
/* needed for retransmit case */
struct mca_btl_base_endpoint_t *endpoint;
/* needed for retransmit case */
mca_btl_base_header_t hdr;
/* handle to use for communication */
ptl_handle_me_t me_h;
/* size of the allocated memory region -- not the amount of data
we need to send */
void *addr;
size_t size;
/* match bits for retransmit case */
ptl_match_bits_t match_bits;
/* length for retransmit case */
ptl_size_t length;
/* length for retransmit case */
ptl_process_t peer_proc;
/* the callback and context to complete an RDMA operation */
struct {
mca_btl_base_rdma_completion_fn_t func;
void *context;
void *data;
mca_btl_base_registration_handle_t *local_handle;
} rdma_cb;
enum {
BTL_PORTALS4_FRAG_TYPE_EAGER,
BTL_PORTALS4_FRAG_TYPE_MAX,
BTL_PORTALS4_FRAG_TYPE_USER
} type;
unsigned char data[16];
};
typedef struct mca_btl_portals4_frag_t mca_btl_portals4_frag_t;
OBJ_CLASS_DECLARATION(mca_btl_portals4_frag_t);
typedef struct mca_btl_portals4_frag_t mca_btl_portals4_frag_eager_t;
OBJ_CLASS_DECLARATION(mca_btl_portals4_frag_eager_t);
typedef struct mca_btl_portals4_frag_t mca_btl_portals4_frag_max_t;
OBJ_CLASS_DECLARATION(mca_btl_portals4_frag_max_t);
typedef struct mca_btl_portals4_frag_t mca_btl_portals4_frag_user_t;
OBJ_CLASS_DECLARATION(mca_btl_portals4_frag_user_t);
/*
* Macros to allocate/return descriptors from module specific
* free list(s).
*/
#define OPAL_BTL_PORTALS4_FRAG_ALLOC_EAGER(btl_macro, frag) \
{ \
frag = (mca_btl_portals4_frag_t *) opal_free_list_get( \
&((mca_btl_portals4_module_t *) btl_macro)->portals_frag_eager); \
if (NULL == frag) { \
OPAL_BTL_PORTALS4_FRAG_ALLOC_MAX(btl_macro, frag); \
} \
}
#define OPAL_BTL_PORTALS4_FRAG_RETURN_EAGER(btl_macro, frag) \
{ \
assert(BTL_PORTALS4_FRAG_TYPE_EAGER == frag->type); \
opal_free_list_return(&((mca_btl_portals4_module_t *) btl_macro)->portals_frag_eager, \
(opal_free_list_item_t *) (frag)); \
}
#define OPAL_BTL_PORTALS4_FRAG_ALLOC_MAX(btl_macro, frag) \
{ \
frag = (mca_btl_portals4_frag_t *) opal_free_list_get( \
&((mca_btl_portals4_module_t *) btl_macro)->portals_frag_max); \
}
#define OPAL_BTL_PORTALS4_FRAG_RETURN_MAX(btl_macro, frag) \
{ \
assert(BTL_PORTALS4_FRAG_TYPE_MAX == frag->type); \
opal_free_list_return(&((mca_btl_portals4_module_t *) btl_macro)->portals_frag_max, \
(opal_free_list_item_t *) (frag)); \
}
#define OPAL_BTL_PORTALS4_FRAG_ALLOC_USER(btl_macro, frag) \
{ \
frag = (mca_btl_portals4_frag_t *) opal_free_list_get( \
&((mca_btl_portals4_module_t *) btl_macro)->portals_frag_user); \
frag->base.des_cbfunc = NULL; \
}
#define OPAL_BTL_PORTALS4_FRAG_RETURN_USER(btl_macro, frag) \
{ \
assert(BTL_PORTALS4_FRAG_TYPE_USER == frag->type); \
opal_free_list_return(&((mca_btl_portals4_module_t *) btl_macro)->portals_frag_user, \
(opal_free_list_item_t *) (frag)); \
}
END_C_DECLS
#endif
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