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/*
* Copyright (c) 2021-2023 Intel Corporation. All rights reserved.
* Copyright (c) 2021 Amazon.com, Inc. or its affiliates. All rights reserved.
* Copyright (c) 2022 DataDirect Networks, Inc. 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 FI_EXT_H
#define FI_EXT_H
#include <stdbool.h>
#include <rdma/fabric.h>
#include <rdma/fi_eq.h>
#include <rdma/fi_endpoint.h>
#include <rdma/providers/fi_prov.h>
#include <rdma/providers/fi_log.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
* Each provider needs to define an unique 12-bit provider
* specific code to avoid overlapping with other providers,
* then bit left shift the code 16 bits. Note that the
* highest 4 bits are not touched, so they are still left
* to 0. The lowest 16 bits can be used to define provider
* specific values. E.g.,
*
* define FI_PROV_SPECIFIC_XXX (0xabc << 16)
*
* enum {
* FI_PROV_XXX_FOO = -(FI_PROV_SPECIFIC_XXX),
* FI_PROV_XXX_BAR,
* }
*/
#define FI_PROV_SPECIFIC_EFA (0xefa << 16)
#define FI_PROV_SPECIFIC_TCP (0x7cb << 16)
/* negative options are provider specific */
enum {
FI_OPT_EFA_RNR_RETRY = -FI_PROV_SPECIFIC_EFA,
FI_OPT_EFA_EMULATED_READ, /* bool */
FI_OPT_EFA_EMULATED_WRITE, /* bool */
FI_OPT_EFA_EMULATED_ATOMICS, /* bool */
FI_OPT_EFA_USE_DEVICE_RDMA, /* bool */
FI_OPT_EFA_SENDRECV_IN_ORDER_ALIGNED_128_BYTES, /* bool */
FI_OPT_EFA_WRITE_IN_ORDER_ALIGNED_128_BYTES, /* bool */
};
struct fi_fid_export {
struct fid **fid;
uint64_t flags;
void *context;
};
static inline int
fi_export_fid(struct fid *fid, uint64_t flags,
struct fid **expfid, void *context)
{
struct fi_fid_export exp;
exp.fid = expfid;
exp.flags = flags;
exp.context = context;
return fi_control(fid, FI_EXPORT_FID, &exp);
}
static inline int
fi_import_fid(struct fid *fid, struct fid *expfid, uint64_t flags)
{
return fid->ops->bind(fid, expfid, flags);
}
/*
* System memory monitor import extension:
* To use, open mr_cache fid and import.
*/
struct fid_mem_monitor;
struct fi_ops_mem_monitor {
size_t size;
int (*start)(struct fid_mem_monitor *monitor);
void (*stop)(struct fid_mem_monitor *monitor);
int (*subscribe)(struct fid_mem_monitor *monitor,
const void *addr, size_t len);
void (*unsubscribe)(struct fid_mem_monitor *monitor,
const void *addr, size_t len);
bool (*valid)(struct fid_mem_monitor *monitor,
const void *addr, size_t len);
};
struct fi_ops_mem_notify {
size_t size;
void (*notify)(struct fid_mem_monitor *monitor, const void *addr,
size_t len);
};
struct fid_mem_monitor {
struct fid fid;
struct fi_ops_mem_monitor *export_ops;
struct fi_ops_mem_notify *import_ops;
};
/*
* System logging import extension:
* To use, open logging fid and import.
*/
#define FI_LOG_PROV_FILTERED (1ULL << 0) /* Filter provider */
struct fi_ops_log {
size_t size;
int (*enabled)(const struct fi_provider *prov, enum fi_log_level level,
enum fi_log_subsys subsys, uint64_t flags);
int (*ready)(const struct fi_provider *prov, enum fi_log_level level,
enum fi_log_subsys subsys, uint64_t flags, uint64_t *showtime);
void (*log)(const struct fi_provider *prov, enum fi_log_level level,
enum fi_log_subsys subsys, const char *func, int line,
const char *msg);
};
struct fid_logging {
struct fid fid;
struct fi_ops_log *ops;
};
static inline int fi_import(uint32_t version, const char *name, void *attr,
size_t attr_len, uint64_t flags, struct fid *fid,
void *context)
{
struct fid *open_fid;
int ret;
ret = fi_open(version, name, attr, attr_len, flags, &open_fid, context);
if (ret != FI_SUCCESS)
return ret;
ret = fi_import_fid(open_fid, fid, flags);
fi_close(open_fid);
return ret;
}
static inline int fi_import_log(uint32_t version, uint64_t flags,
struct fid_logging *log_fid)
{
log_fid->fid.fclass = FI_CLASS_LOG;
log_fid->ops->size = sizeof(struct fi_ops_log);
return fi_import(version, "logging", NULL, 0, flags, &log_fid->fid,
log_fid);
}
#ifdef __cplusplus
}
#endif
#endif /* FI_EXT_H */
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