[mirror_ubuntu-bionic-kernel.git] / include / linux / nvme-fc.h

/*
 * Copyright (c) 2016 Avago Technologies.  All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful.
 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
 * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
 * PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE DISCLAIMED, EXCEPT TO
 * THE EXTENT THAT SUCH DISCLAIMERS ARE HELD TO BE LEGALLY INVALID.
 * See the GNU General Public License for more details, a copy of which
 * can be found in the file COPYING included with this package
 *
 */

/*
 * This file contains definitions relative to FC-NVME r1.14 (16-020vB).
 * The fcnvme_lsdesc_cr_assoc_cmd struct reflects expected r1.16 content.
 */

#ifndef _NVME_FC_H
#define _NVME_FC_H 1


#define NVME_CMD_SCSI_ID		0xFD
#define NVME_CMD_FC_ID			FC_TYPE_NVME

/* FC-NVME Cmd IU Flags */
#define FCNVME_CMD_FLAGS_DIRMASK	0x03
#define FCNVME_CMD_FLAGS_WRITE		0x01
#define FCNVME_CMD_FLAGS_READ		0x02

struct nvme_fc_cmd_iu {
	__u8			scsi_id;
	__u8			fc_id;
	__be16			iu_len;
	__u8			rsvd4[3];
	__u8			flags;
	__be64			connection_id;
	__be32			csn;
	__be32			data_len;
	struct nvme_command	sqe;
	__be32			rsvd88[2];
};

#define NVME_FC_SIZEOF_ZEROS_RSP	12

enum {
	FCNVME_SC_SUCCESS		= 0,
	FCNVME_SC_INVALID_FIELD		= 1,
	FCNVME_SC_INVALID_CONNID	= 2,
};

struct nvme_fc_ersp_iu {
	__u8			status_code;
	__u8			rsvd1;
	__be16			iu_len;
	__be32			rsn;
	__be32			xfrd_len;
	__be32			rsvd12;
	struct nvme_completion	cqe;
	/* for now - no additional payload */
};


/* FC-NVME Link Services */
enum {
	FCNVME_LS_RSVD			= 0,
	FCNVME_LS_RJT			= 1,
	FCNVME_LS_ACC			= 2,
	FCNVME_LS_CREATE_ASSOCIATION	= 3,
	FCNVME_LS_CREATE_CONNECTION	= 4,
	FCNVME_LS_DISCONNECT		= 5,
};

/* FC-NVME Link Service Descriptors */
enum {
	FCNVME_LSDESC_RSVD		= 0x0,
	FCNVME_LSDESC_RQST		= 0x1,
	FCNVME_LSDESC_RJT		= 0x2,
	FCNVME_LSDESC_CREATE_ASSOC_CMD	= 0x3,
	FCNVME_LSDESC_CREATE_CONN_CMD	= 0x4,
	FCNVME_LSDESC_DISCONN_CMD	= 0x5,
	FCNVME_LSDESC_CONN_ID		= 0x6,
	FCNVME_LSDESC_ASSOC_ID		= 0x7,
};


/* ********** start of Link Service Descriptors ********** */


/*
 * fills in length of a descriptor. Struture minus descriptor header
 */
static inline __be32 fcnvme_lsdesc_len(size_t sz)
{
	return cpu_to_be32(sz - (2 * sizeof(u32)));
}

struct fcnvme_ls_rqst_w0 {
	u8	ls_cmd;			/* FCNVME_LS_xxx */
	u8	zeros[3];
};

/* FCNVME_LSDESC_RQST */
struct fcnvme_lsdesc_rqst {
	__be32	desc_tag;		/* FCNVME_LSDESC_xxx */
	__be32	desc_len;
	struct fcnvme_ls_rqst_w0	w0;
	__be32	rsvd12;
};

/* FC-NVME LS RJT reason_code values */
enum fcnvme_ls_rjt_reason {
	FCNVME_RJT_RC_NONE		= 0,
	/* no reason - not to be sent */

	FCNVME_RJT_RC_INVAL		= 0x01,
	/* invalid NVMe_LS command code */

	FCNVME_RJT_RC_LOGIC		= 0x03,
	/* logical error */

	FCNVME_RJT_RC_UNAB		= 0x09,
	/* unable to perform command request */

	FCNVME_RJT_RC_UNSUP		= 0x0b,
	/* command not supported */

	FCNVME_RJT_RC_INPROG		= 0x0e,
	/* command already in progress */

	FCNVME_RJT_RC_INV_ASSOC		= 0x40,
	/* Invalid Association ID*/

	FCNVME_RJT_RC_INV_CONN		= 0x41,
	/* Invalid Connection ID*/

	FCNVME_RJT_RC_VENDOR		= 0xff,
	/* vendor specific error */
};

/* FC-NVME LS RJT reason_explanation values */
enum fcnvme_ls_rjt_explan {
	FCNVME_RJT_EXP_NONE		= 0x00,
	/* No additional explanation */

	FCNVME_RJT_EXP_OXID_RXID	= 0x17,
	/* invalid OX_ID-RX_ID combination */

	FCNVME_RJT_EXP_INSUF_RES	= 0x29,
	/* insufficient resources */

	FCNVME_RJT_EXP_UNAB_DATA	= 0x2a,
	/* unable to supply requested data */

	FCNVME_RJT_EXP_INV_LEN		= 0x2d,
	/* Invalid payload length */
};

/* FCNVME_LSDESC_RJT */
struct fcnvme_lsdesc_rjt {
	__be32	desc_tag;		/* FCNVME_LSDESC_xxx */
	__be32	desc_len;
	u8	rsvd8;

	/*
	 * Reject reason and explanaction codes are generic
	 * to ELs's from LS-3.
	 */
	u8	reason_code;		/* fcnvme_ls_rjt_reason */
	u8	reason_explanation;	/* fcnvme_ls_rjt_explan */

	u8	vendor;
	__be32	rsvd12;
};


#define FCNVME_ASSOC_HOSTNQN_LEN	256
#define FCNVME_ASSOC_SUBNQN_LEN		256

/* FCNVME_LSDESC_CREATE_ASSOC_CMD */
struct fcnvme_lsdesc_cr_assoc_cmd {
	__be32	desc_tag;		/* FCNVME_LSDESC_xxx */
	__be32	desc_len;
	__be16	ersp_ratio;
	__be16	rsvd10;
	__be32	rsvd12[9];
	__be16	cntlid;
	__be16	sqsize;
	__be32	rsvd52;
	uuid_t	hostid;
	u8	hostnqn[FCNVME_ASSOC_HOSTNQN_LEN];
	u8	subnqn[FCNVME_ASSOC_SUBNQN_LEN];
	__be32	rsvd584[108];		/* pad to 1016 bytes,
					 * which makes overall LS rqst
					 * payload 1024 bytes
					 */
};

#define FCNVME_LSDESC_CRA_CMD_DESC_MINLEN	\
		offsetof(struct fcnvme_lsdesc_cr_assoc_cmd, rsvd584)

#define FCNVME_LSDESC_CRA_CMD_DESC_MIN_DESCLEN	\
		(FCNVME_LSDESC_CRA_CMD_DESC_MINLEN - \
		 offsetof(struct fcnvme_lsdesc_cr_assoc_cmd, ersp_ratio))


/* FCNVME_LSDESC_CREATE_CONN_CMD */
struct fcnvme_lsdesc_cr_conn_cmd {
	__be32	desc_tag;		/* FCNVME_LSDESC_xxx */
	__be32	desc_len;
	__be16	ersp_ratio;
	__be16	rsvd10;
	__be32	rsvd12[9];
	__be16	qid;
	__be16	sqsize;
	__be32  rsvd52;
};

/* Disconnect Scope Values */
enum {
	FCNVME_DISCONN_ASSOCIATION	= 0,
	FCNVME_DISCONN_CONNECTION	= 1,
};

/* FCNVME_LSDESC_DISCONN_CMD */
struct fcnvme_lsdesc_disconn_cmd {
	__be32	desc_tag;		/* FCNVME_LSDESC_xxx */
	__be32	desc_len;
	u8	rsvd8[3];
	/* note: scope is really a 1 bit field */
	u8	scope;			/* FCNVME_DISCONN_xxx */
	__be32	rsvd12;
	__be64	id;
};

/* FCNVME_LSDESC_CONN_ID */
struct fcnvme_lsdesc_conn_id {
	__be32	desc_tag;		/* FCNVME_LSDESC_xxx */
	__be32	desc_len;
	__be64	connection_id;
};

/* FCNVME_LSDESC_ASSOC_ID */
struct fcnvme_lsdesc_assoc_id {
	__be32	desc_tag;		/* FCNVME_LSDESC_xxx */
	__be32	desc_len;
	__be64	association_id;
};

/* r_ctl values */
enum {
	FCNVME_RS_RCTL_DATA		= 1,
	FCNVME_RS_RCTL_XFER_RDY		= 5,
	FCNVME_RS_RCTL_RSP		= 8,
};


/* ********** start of Link Services ********** */


/* FCNVME_LS_RJT */
struct fcnvme_ls_rjt {
	struct fcnvme_ls_rqst_w0		w0;
	__be32					desc_list_len;
	struct fcnvme_lsdesc_rqst		rqst;
	struct fcnvme_lsdesc_rjt		rjt;
};

/* FCNVME_LS_ACC */
struct fcnvme_ls_acc_hdr {
	struct fcnvme_ls_rqst_w0		w0;
	__be32					desc_list_len;
	struct fcnvme_lsdesc_rqst		rqst;
	/* Followed by cmd-specific ACC descriptors, see next definitions */
};

/* FCNVME_LS_CREATE_ASSOCIATION */
struct fcnvme_ls_cr_assoc_rqst {
	struct fcnvme_ls_rqst_w0		w0;
	__be32					desc_list_len;
	struct fcnvme_lsdesc_cr_assoc_cmd	assoc_cmd;
};

#define FCNVME_LSDESC_CRA_RQST_MINLEN	\
		(offsetof(struct fcnvme_ls_cr_assoc_rqst, assoc_cmd) + \
			FCNVME_LSDESC_CRA_CMD_DESC_MINLEN)

#define FCNVME_LSDESC_CRA_RQST_MIN_LISTLEN	\
		FCNVME_LSDESC_CRA_CMD_DESC_MINLEN


struct fcnvme_ls_cr_assoc_acc {
	struct fcnvme_ls_acc_hdr		hdr;
	struct fcnvme_lsdesc_assoc_id		associd;
	struct fcnvme_lsdesc_conn_id		connectid;
};


/* FCNVME_LS_CREATE_CONNECTION */
struct fcnvme_ls_cr_conn_rqst {
	struct fcnvme_ls_rqst_w0		w0;
	__be32					desc_list_len;
	struct fcnvme_lsdesc_assoc_id		associd;
	struct fcnvme_lsdesc_cr_conn_cmd	connect_cmd;
};

struct fcnvme_ls_cr_conn_acc {
	struct fcnvme_ls_acc_hdr		hdr;
	struct fcnvme_lsdesc_conn_id		connectid;
};

/* FCNVME_LS_DISCONNECT */
struct fcnvme_ls_disconnect_rqst {
	struct fcnvme_ls_rqst_w0		w0;
	__be32					desc_list_len;
	struct fcnvme_lsdesc_assoc_id		associd;
	struct fcnvme_lsdesc_disconn_cmd	discon_cmd;
};

struct fcnvme_ls_disconnect_acc {
	struct fcnvme_ls_acc_hdr		hdr;
};


/*
 * Yet to be defined in FC-NVME:
 */
#define NVME_FC_CONNECT_TIMEOUT_SEC	2		/* 2 seconds */
#define NVME_FC_LS_TIMEOUT_SEC		2		/* 2 seconds */
#define NVME_FC_TGTOP_TIMEOUT_SEC	2		/* 2 seconds */

/*
 * TRADDR string must be of form "nn-<16hexdigits>:pn-<16hexdigits>"
 * the string is allowed to be specified with or without a "0x" prefix
 * infront of the <16hexdigits>.  Without is considered the "min" string
 * and with is considered the "max" string. The hexdigits may be upper
 * or lower case.
 */
#define NVME_FC_TRADDR_NNLEN		3	/* "?n-" */
#define NVME_FC_TRADDR_OXNNLEN		5	/* "?n-0x" */
#define NVME_FC_TRADDR_HEXNAMELEN	16
#define NVME_FC_TRADDR_MINLENGTH	\
		(2 * (NVME_FC_TRADDR_NNLEN + NVME_FC_TRADDR_HEXNAMELEN) + 1)
#define NVME_FC_TRADDR_MAXLENGTH	\
		(2 * (NVME_FC_TRADDR_OXNNLEN + NVME_FC_TRADDR_HEXNAMELEN) + 1)
#define NVME_FC_TRADDR_MIN_PN_OFFSET	\
		(NVME_FC_TRADDR_NNLEN + NVME_FC_TRADDR_HEXNAMELEN + 1)
#define NVME_FC_TRADDR_MAX_PN_OFFSET	\
		(NVME_FC_TRADDR_OXNNLEN + NVME_FC_TRADDR_HEXNAMELEN + 1)


#endif /* _NVME_FC_H */
Commit	Line	Data
b1ad1475 JS	1	/*
	2	* Copyright (c) 2016 Avago Technologies. All rights reserved.
	3	*
	4	* This program is free software; you can redistribute it and/or modify
	5	* it under the terms of version 2 of the GNU General Public License as
	6	* published by the Free Software Foundation.
	7	*
	8	* This program is distributed in the hope that it will be useful.
	9	* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
	10	* INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
	11	* PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE DISCLAIMED, EXCEPT TO
	12	* THE EXTENT THAT SUCH DISCLAIMERS ARE HELD TO BE LEGALLY INVALID.
	13	* See the GNU General Public License for more details, a copy of which
	14	* can be found in the file COPYING included with this package
	15	*
	16	*/
	17
	18	/*
0f222ccc	19	* This file contains definitions relative to FC-NVME r1.14 (16-020vB).
d1438ad8	20	* The fcnvme_lsdesc_cr_assoc_cmd struct reflects expected r1.16 content.
b1ad1475 JS	21	*/
	22
	23	#ifndef _NVME_FC_H
	24	#define _NVME_FC_H 1
	25
	26
	27	#define NVME_CMD_SCSI_ID 0xFD
	28	#define NVME_CMD_FC_ID FC_TYPE_NVME
	29
	30	/* FC-NVME Cmd IU Flags */
	31	#define FCNVME_CMD_FLAGS_DIRMASK 0x03
	32	#define FCNVME_CMD_FLAGS_WRITE 0x01
	33	#define FCNVME_CMD_FLAGS_READ 0x02
	34
	35	struct nvme_fc_cmd_iu {
	36	__u8 scsi_id;
	37	__u8 fc_id;
	38	__be16 iu_len;
	39	__u8 rsvd4[3];
	40	__u8 flags;
	41	__be64 connection_id;
	42	__be32 csn;
	43	__be32 data_len;
	44	struct nvme_command sqe;
	45	__be32 rsvd88[2];
	46	};
	47
	48	#define NVME_FC_SIZEOF_ZEROS_RSP 12
	49
0f222ccc JS	50	enum {
	51	FCNVME_SC_SUCCESS = 0,
	52	FCNVME_SC_INVALID_FIELD = 1,
	53	FCNVME_SC_INVALID_CONNID = 2,
	54	};
	55
b1ad1475	56	struct nvme_fc_ersp_iu {
0f222ccc JS	57	__u8 status_code;
0f222ccc JS	58	__u8 rsvd1;
b1ad1475 JS	59	__be16 iu_len;
	60	__be32 rsn;
	61	__be32 xfrd_len;
	62	__be32 rsvd12;
	63	struct nvme_completion cqe;
	64	/* for now - no additional payload */
	65	};
	66
	67
0f222ccc	68	/* FC-NVME Link Services */
b1ad1475 JS	69	enum {
	70	FCNVME_LS_RSVD = 0,
	71	FCNVME_LS_RJT = 1,
	72	FCNVME_LS_ACC = 2,
	73	FCNVME_LS_CREATE_ASSOCIATION = 3,
	74	FCNVME_LS_CREATE_CONNECTION = 4,
	75	FCNVME_LS_DISCONNECT = 5,
	76	};
	77
0f222ccc	78	/* FC-NVME Link Service Descriptors */
b1ad1475 JS	79	enum {
	80	FCNVME_LSDESC_RSVD = 0x0,
	81	FCNVME_LSDESC_RQST = 0x1,
	82	FCNVME_LSDESC_RJT = 0x2,
	83	FCNVME_LSDESC_CREATE_ASSOC_CMD = 0x3,
	84	FCNVME_LSDESC_CREATE_CONN_CMD = 0x4,
	85	FCNVME_LSDESC_DISCONN_CMD = 0x5,
	86	FCNVME_LSDESC_CONN_ID = 0x6,
	87	FCNVME_LSDESC_ASSOC_ID = 0x7,
	88	};
	89
	90
	91	/* ******** start of Link Service Descriptors ******** */
	92
	93
	94	/*
	95	* fills in length of a descriptor. Struture minus descriptor header
	96	*/
	97	static inline __be32 fcnvme_lsdesc_len(size_t sz)
	98	{
	99	return cpu_to_be32(sz - (2 * sizeof(u32)));
	100	}
	101
b1ad1475 JS	102	struct fcnvme_ls_rqst_w0 {
	103	u8 ls_cmd; /* FCNVME_LS_xxx */
	104	u8 zeros[3];
	105	};
	106
	107	/* FCNVME_LSDESC_RQST */
	108	struct fcnvme_lsdesc_rqst {
	109	__be32 desc_tag; /* FCNVME_LSDESC_xxx */
	110	__be32 desc_len;
	111	struct fcnvme_ls_rqst_w0 w0;
	112	__be32 rsvd12;
	113	};
	114
0f222ccc JS	115	/* FC-NVME LS RJT reason_code values */
	116	enum fcnvme_ls_rjt_reason {
	117	FCNVME_RJT_RC_NONE = 0,
	118	/* no reason - not to be sent */
	119
	120	FCNVME_RJT_RC_INVAL = 0x01,
	121	/* invalid NVMe_LS command code */
	122
	123	FCNVME_RJT_RC_LOGIC = 0x03,
	124	/* logical error */
	125
	126	FCNVME_RJT_RC_UNAB = 0x09,
	127	/* unable to perform command request */
	128
	129	FCNVME_RJT_RC_UNSUP = 0x0b,
	130	/* command not supported */
	131
	132	FCNVME_RJT_RC_INPROG = 0x0e,
	133	/* command already in progress */
b1ad1475	134
0f222ccc JS	135	FCNVME_RJT_RC_INV_ASSOC = 0x40,
0f222ccc JS	136	/* Invalid Association ID*/
b1ad1475	137
0f222ccc JS	138	FCNVME_RJT_RC_INV_CONN = 0x41,
	139	/* Invalid Connection ID*/
	140
	141	FCNVME_RJT_RC_VENDOR = 0xff,
	142	/* vendor specific error */
	143	};
	144
	145	/* FC-NVME LS RJT reason_explanation values */
	146	enum fcnvme_ls_rjt_explan {
	147	FCNVME_RJT_EXP_NONE = 0x00,
	148	/* No additional explanation */
	149
	150	FCNVME_RJT_EXP_OXID_RXID = 0x17,
	151	/* invalid OX_ID-RX_ID combination */
	152
	153	FCNVME_RJT_EXP_INSUF_RES = 0x29,
	154	/* insufficient resources */
	155
	156	FCNVME_RJT_EXP_UNAB_DATA = 0x2a,
	157	/* unable to supply requested data */
	158
	159	FCNVME_RJT_EXP_INV_LEN = 0x2d,
	160	/* Invalid payload length */
	161	};
b1ad1475 JS	162
	163	/* FCNVME_LSDESC_RJT */
	164	struct fcnvme_lsdesc_rjt {
	165	__be32 desc_tag; /* FCNVME_LSDESC_xxx */
	166	__be32 desc_len;
	167	u8 rsvd8;
	168
	169	/*
	170	* Reject reason and explanaction codes are generic
	171	* to ELs's from LS-3.
	172	*/
0f222ccc JS	173	u8 reason_code; /* fcnvme_ls_rjt_reason */
0f222ccc JS	174	u8 reason_explanation; /* fcnvme_ls_rjt_explan */
b1ad1475 JS	175
	176	u8 vendor;
	177	__be32 rsvd12;
	178	};
	179
	180
b1ad1475 JS	181	#define FCNVME_ASSOC_HOSTNQN_LEN 256
	182	#define FCNVME_ASSOC_SUBNQN_LEN 256
	183
	184	/* FCNVME_LSDESC_CREATE_ASSOC_CMD */
	185	struct fcnvme_lsdesc_cr_assoc_cmd {
	186	__be32 desc_tag; /* FCNVME_LSDESC_xxx */
	187	__be32 desc_len;
	188	__be16 ersp_ratio;
	189	__be16 rsvd10;
	190	__be32 rsvd12[9];
	191	__be16 cntlid;
	192	__be16 sqsize;
	193	__be32 rsvd52;
8e412263	194	uuid_t hostid;
b1ad1475 JS	195	u8 hostnqn[FCNVME_ASSOC_HOSTNQN_LEN];
b1ad1475 JS	196	u8 subnqn[FCNVME_ASSOC_SUBNQN_LEN];
d1438ad8 JS	197	__be32 rsvd584[108]; /* pad to 1016 bytes,
	198	* which makes overall LS rqst
	199	* payload 1024 bytes
	200	*/
b1ad1475 JS	201	};
b1ad1475 JS	202
d1438ad8 JS	203	#define FCNVME_LSDESC_CRA_CMD_DESC_MINLEN \
	204	offsetof(struct fcnvme_lsdesc_cr_assoc_cmd, rsvd584)
	205
	206	#define FCNVME_LSDESC_CRA_CMD_DESC_MIN_DESCLEN \
	207	(FCNVME_LSDESC_CRA_CMD_DESC_MINLEN - \
	208	offsetof(struct fcnvme_lsdesc_cr_assoc_cmd, ersp_ratio))
	209
	210
	211
b1ad1475 JS	212	/* FCNVME_LSDESC_CREATE_CONN_CMD */
	213	struct fcnvme_lsdesc_cr_conn_cmd {
	214	__be32 desc_tag; /* FCNVME_LSDESC_xxx */
	215	__be32 desc_len;
	216	__be16 ersp_ratio;
	217	__be16 rsvd10;
	218	__be32 rsvd12[9];
	219	__be16 qid;
	220	__be16 sqsize;
	221	__be32 rsvd52;
	222	};
	223
	224	/* Disconnect Scope Values */
	225	enum {
	226	FCNVME_DISCONN_ASSOCIATION = 0,
	227	FCNVME_DISCONN_CONNECTION = 1,
	228	};
	229
	230	/* FCNVME_LSDESC_DISCONN_CMD */
	231	struct fcnvme_lsdesc_disconn_cmd {
	232	__be32 desc_tag; /* FCNVME_LSDESC_xxx */
	233	__be32 desc_len;
	234	u8 rsvd8[3];
	235	/* note: scope is really a 1 bit field */
	236	u8 scope; /* FCNVME_DISCONN_xxx */
	237	__be32 rsvd12;
	238	__be64 id;
	239	};
	240
	241	/* FCNVME_LSDESC_CONN_ID */
	242	struct fcnvme_lsdesc_conn_id {
	243	__be32 desc_tag; /* FCNVME_LSDESC_xxx */
	244	__be32 desc_len;
	245	__be64 connection_id;
	246	};
	247
	248	/* FCNVME_LSDESC_ASSOC_ID */
	249	struct fcnvme_lsdesc_assoc_id {
	250	__be32 desc_tag; /* FCNVME_LSDESC_xxx */
	251	__be32 desc_len;
	252	__be64 association_id;
	253	};
	254
	255	/* r_ctl values */
	256	enum {
	257	FCNVME_RS_RCTL_DATA = 1,
	258	FCNVME_RS_RCTL_XFER_RDY = 5,
	259	FCNVME_RS_RCTL_RSP = 8,
	260	};
	261
	262
	263	/* ******** start of Link Services ******** */
	264
	265
	266	/* FCNVME_LS_RJT */
	267	struct fcnvme_ls_rjt {
	268	struct fcnvme_ls_rqst_w0 w0;
	269	__be32 desc_list_len;
	270	struct fcnvme_lsdesc_rqst rqst;
	271	struct fcnvme_lsdesc_rjt rjt;
	272	};
	273
	274	/* FCNVME_LS_ACC */
	275	struct fcnvme_ls_acc_hdr {
276	struct fcnvme_ls_rqst_w0 w0;
277	__be32 desc_list_len;
278	struct fcnvme_lsdesc_rqst rqst;
279	/* Followed by cmd-specific ACC descriptors, see next definitions */
280	};
281
282	/* FCNVME_LS_CREATE_ASSOCIATION */
283	struct fcnvme_ls_cr_assoc_rqst {
284	struct fcnvme_ls_rqst_w0 w0;
285	__be32 desc_list_len;
286	struct fcnvme_lsdesc_cr_assoc_cmd assoc_cmd;
287	};
288
d1438ad8 JS	289	#define FCNVME_LSDESC_CRA_RQST_MINLEN \
	290	(offsetof(struct fcnvme_ls_cr_assoc_rqst, assoc_cmd) + \
	291	FCNVME_LSDESC_CRA_CMD_DESC_MINLEN)
	292
	293	#define FCNVME_LSDESC_CRA_RQST_MIN_LISTLEN \
	294	FCNVME_LSDESC_CRA_CMD_DESC_MINLEN
	295
	296
b1ad1475 JS	297	struct fcnvme_ls_cr_assoc_acc {
	298	struct fcnvme_ls_acc_hdr hdr;
	299	struct fcnvme_lsdesc_assoc_id associd;
	300	struct fcnvme_lsdesc_conn_id connectid;
	301	};
	302
	303
	304	/* FCNVME_LS_CREATE_CONNECTION */
	305	struct fcnvme_ls_cr_conn_rqst {
	306	struct fcnvme_ls_rqst_w0 w0;
	307	__be32 desc_list_len;
	308	struct fcnvme_lsdesc_assoc_id associd;
	309	struct fcnvme_lsdesc_cr_conn_cmd connect_cmd;
	310	};
	311
	312	struct fcnvme_ls_cr_conn_acc {
	313	struct fcnvme_ls_acc_hdr hdr;
	314	struct fcnvme_lsdesc_conn_id connectid;
	315	};
	316
	317	/* FCNVME_LS_DISCONNECT */
	318	struct fcnvme_ls_disconnect_rqst {
	319	struct fcnvme_ls_rqst_w0 w0;
	320	__be32 desc_list_len;
	321	struct fcnvme_lsdesc_assoc_id associd;
	322	struct fcnvme_lsdesc_disconn_cmd discon_cmd;
	323	};
	324
	325	struct fcnvme_ls_disconnect_acc {
	326	struct fcnvme_ls_acc_hdr hdr;
	327	};
	328
	329
	330	/*
	331	* Yet to be defined in FC-NVME:
	332	*/
	333	#define NVME_FC_CONNECT_TIMEOUT_SEC 2 /* 2 seconds */
	334	#define NVME_FC_LS_TIMEOUT_SEC 2 /* 2 seconds */
	335	#define NVME_FC_TGTOP_TIMEOUT_SEC 2 /* 2 seconds */
	336
9c5358e1 JS	337	/*
	338	* TRADDR string must be of form "nn-<16hexdigits>:pn-<16hexdigits>"
	339	* the string is allowed to be specified with or without a "0x" prefix
	340	* infront of the <16hexdigits>. Without is considered the "min" string
	341	* and with is considered the "max" string. The hexdigits may be upper
	342	* or lower case.
	343	*/
	344	#define NVME_FC_TRADDR_NNLEN 3 /* "?n-" */
	345	#define NVME_FC_TRADDR_OXNNLEN 5 /* "?n-0x" */
	346	#define NVME_FC_TRADDR_HEXNAMELEN 16
	347	#define NVME_FC_TRADDR_MINLENGTH \
	348	(2 * (NVME_FC_TRADDR_NNLEN + NVME_FC_TRADDR_HEXNAMELEN) + 1)
	349	#define NVME_FC_TRADDR_MAXLENGTH \
	350	(2 * (NVME_FC_TRADDR_OXNNLEN + NVME_FC_TRADDR_HEXNAMELEN) + 1)
	351	#define NVME_FC_TRADDR_MIN_PN_OFFSET \
	352	(NVME_FC_TRADDR_NNLEN + NVME_FC_TRADDR_HEXNAMELEN + 1)
	353	#define NVME_FC_TRADDR_MAX_PN_OFFSET \
	354	(NVME_FC_TRADDR_OXNNLEN + NVME_FC_TRADDR_HEXNAMELEN + 1)
	355
b1ad1475 JS	356
b1ad1475 JS	357	#endif /* _NVME_FC_H */