freebsd-skq/sbin/nvmecontrol/nvmecontrol.h

/*-
 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
 *
 * Copyright (C) 2012-2013 Intel Corporation
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * $FreeBSD$
 */

#ifndef __NVMECONTROL_H__
#define __NVMECONTROL_H__

#include <sys/linker_set.h>
#include <dev/nvme/nvme.h>

struct nvme_function;
typedef void (*nvme_fn_t)(const struct nvme_function *nf, int argc, char *argv[]);

struct nvme_function {
	const char	*name;
	nvme_fn_t	fn;
	const char	*usage;
};

#define NVME_SETNAME(set)	set
#define	NVME_CMDSET(set, sym)	DATA_SET(NVME_SETNAME(set), sym)
#define NVME_COMMAND(set, nam, function, usage_str)			\
	static struct nvme_function function ## _nvme_cmd =		\
	{ .name = #nam, .fn = function, .usage = usage_str };		\
	NVME_CMDSET(set, function ## _nvme_cmd)
#define NVME_CMD_BEGIN(set)	SET_BEGIN(NVME_SETNAME(set))
#define NVME_CMD_LIMIT(set)	SET_LIMIT(NVME_SETNAME(set))
#define NVME_CMD_DECLARE(set, t) SET_DECLARE(NVME_SETNAME(set), t)

typedef void (*print_fn_t)(const struct nvme_controller_data *cdata, void *buf, uint32_t size);

struct logpage_function {
	uint8_t		log_page;
	const char     *vendor;
	const char     *name;
	print_fn_t	print_fn;
	size_t		size;
};


#define NVME_LOGPAGESET(sym)		DATA_SET(NVME_SETNAME(logpage), sym)
#define NVME_LOGPAGE(unique, lp, vend, nam, fn, sz)			\
	static struct logpage_function unique ## _lpf = {		\
		.log_page = lp,						\
		.vendor = vend,						\
		.name = nam,						\
		.print_fn = fn, 					\
		.size = sz,						\
	} ;								\
	NVME_LOGPAGESET(unique ## _lpf)
#define NVME_LOGPAGE_BEGIN	SET_BEGIN(NVME_SETNAME(logpage))
#define NVME_LOGPAGE_LIMIT	SET_LIMIT(NVME_SETNAME(logpage))
#define NVME_LOGPAGE_DECLARE(t)		SET_DECLARE(NVME_SETNAME(logpage), t)

#define DEFAULT_SIZE	(4096)
struct kv_name {
	uint32_t key;
	const char *name;
};

const char *kv_lookup(const struct kv_name *kv, size_t kv_count, uint32_t key);

NVME_CMD_DECLARE(top, struct nvme_function);
NVME_LOGPAGE_DECLARE(struct logpage_function);

struct set_concat {
	void **begin;
	void **limit;
};
void set_concat_add(struct set_concat *m, void *begin, void *end);
#define SET_CONCAT_DEF(set, t) 							\
static struct set_concat set ## _concat;					\
static inline const t * const *set ## _begin() { return ((const t * const *)set ## _concat.begin); }	\
static inline const t * const *set ## _limit() { return ((const t * const *)set ## _concat.limit); }	\
void add_to_ ## set(t **b, t **e)						\
{										\
	set_concat_add(&set ## _concat, b, e);					\
}
#define SET_CONCAT_DECL(set, t)							\
	void add_to_ ## set(t **b, t **e)
SET_CONCAT_DECL(top, struct nvme_function);
SET_CONCAT_DECL(logpage, struct logpage_function);

#define NVME_CTRLR_PREFIX	"nvme"
#define NVME_NS_PREFIX		"ns"

int open_dev(const char *str, int *fd, int show_error, int exit_on_error);
void parse_ns_str(const char *ns_str, char *ctrlr_str, uint32_t *nsid);
void read_controller_data(int fd, struct nvme_controller_data *cdata);
void read_namespace_data(int fd, uint32_t nsid, struct nvme_namespace_data *nsdata);
void print_hex(void *data, uint32_t length);
void read_logpage(int fd, uint8_t log_page, uint32_t nsid, void *payload,
    uint32_t payload_size);
void print_temp(uint16_t t);

void usage(const struct nvme_function *f);
void dispatch_set(int argc, char *argv[], const struct nvme_function * const *tbl,
    const struct nvme_function * const *tbl_limit);

#define DISPATCH(argc, argv, set)					\
	dispatch_set(argc, argv,					\
	    (const struct nvme_function * const *)NVME_CMD_BEGIN(set),	\
	    (const struct nvme_function * const *)NVME_CMD_LIMIT(set))	\

/* Utility Routines */
/*
 * 128-bit integer augments to standard values. On i386 this
 * doesn't exist, so we use 64-bit values. So, on 32-bit i386,
 * you'll get truncated values until someone implement 128bit
 * ints in sofware.
 */
#define UINT128_DIG	39
#ifdef __i386__
typedef uint64_t uint128_t;
#else
typedef __uint128_t uint128_t;
#endif

static __inline uint128_t
to128(void *p)
{
	return *(uint128_t *)p;
}

uint64_t le48dec(const void *pp);
char * uint128_to_str(uint128_t u, char *buf, size_t buflen);

#endif