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/*
* (C) Copyright 2023 UT-Battelle, LLC. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef OFI_CMA_H
#define OFI_CMA_H
#if HAVE_CONFIG_H
# include <config.h>
#endif /* HAVE_CONFIG_H */
#include <ofi.h>
#include <ofi_iov.h>
static inline int cma_copy(struct iovec *local, unsigned long local_cnt,
struct iovec *remote, unsigned long remote_cnt,
size_t total, pid_t pid, bool write,
void *user_data)
{
ssize_t ret;
while (1) {
if (write)
ret = ofi_process_vm_writev(pid, local, local_cnt, remote,
remote_cnt, 0);
else
ret = ofi_process_vm_readv(pid, local, local_cnt, remote,
remote_cnt, 0);
if (ret < 0) {
FI_WARN(&core_prov, FI_LOG_CORE,
"CMA error %d\n", errno);
return -FI_EIO;
}
total -= ret;
if (!total)
return FI_SUCCESS;
ofi_consume_iov(local, &local_cnt, (size_t) ret);
ofi_consume_iov(remote, &remote_cnt, (size_t) ret);
}
}
#endif /* OFI_CMA_H */
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