linux/drivers/infiniband/ulp/rtrs/rtrs-srv.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * RDMA Transport Layer
 *
 * Copyright (c) 2014 - 2018 ProfitBricks GmbH. All rights reserved.
 * Copyright (c) 2018 - 2019 1&1 IONOS Cloud GmbH. All rights reserved.
 * Copyright (c) 2019 - 2020 1&1 IONOS SE. All rights reserved.
 */

#ifndef RTRS_SRV_H
#define RTRS_SRV_H

#include <linux/device.h>
#include <linux/refcount.h>
#include <linux/percpu.h>
#include "rtrs-pri.h"

/*
 * enum rtrs_srv_state - Server states.
 */
enum rtrs_srv_state { … };

/* stats for Read and write operation.
 * see Documentation/ABI/testing/sysfs-class-rtrs-server for details
 */
struct rtrs_srv_stats_rdma_stats { … };

struct rtrs_srv_stats { … };

struct rtrs_srv_con { … };

/* IO context in rtrs_srv, each io has one */
struct rtrs_srv_op { … };

/*
 * server side memory region context, when always_invalidate=Y, we need
 * queue_depth of memory region to invalidate each memory region.
 */
struct rtrs_srv_mr { … };

struct rtrs_srv_path { … };

static inline struct rtrs_srv_path *to_srv_path(struct rtrs_path *s)
{ … }

struct rtrs_srv_sess { … };

struct rtrs_srv_ctx { … };

struct rtrs_srv_ib_ctx { … };

extern const struct class rtrs_dev_class;

void close_path(struct rtrs_srv_path *srv_path);

static inline void rtrs_srv_update_rdma_stats(struct rtrs_srv_stats *s,
					      size_t size, int d)
{ … }

/* functions which are implemented in rtrs-srv-stats.c */
int rtrs_srv_reset_rdma_stats(struct rtrs_srv_stats *stats, bool enable);
ssize_t rtrs_srv_stats_rdma_to_str(struct rtrs_srv_stats *stats, char *page);
int rtrs_srv_reset_all_stats(struct rtrs_srv_stats *stats, bool enable);
ssize_t rtrs_srv_reset_all_help(struct rtrs_srv_stats *stats,
				 char *page, size_t len);

/* functions which are implemented in rtrs-srv-sysfs.c */
int rtrs_srv_create_path_files(struct rtrs_srv_path *srv_path);
void rtrs_srv_destroy_path_files(struct rtrs_srv_path *srv_path);

#endif /* RTRS_SRV_H */