[unix-history] / usr / src / sys / vax / vax / mscp.h

/*
 * Copyright (c) 1982 Regents of the University of California.
 * All rights reserved.  The Berkeley software License Agreement
 * specifies the terms and conditions for redistribution.
 *
 *	@(#)mscp.h	6.3 (Berkeley) %G%
 */

/*
 * Definitions for the Mass Storage Control Protocol
 */


/*
 * Control message opcodes
 */
#define	M_OP_ABORT	0001	/* Abort command */
#define	M_OP_GTCMD	0002	/* Get command status command */
#define	M_OP_GTUNT	0003	/* Get unit status command */
#define	M_OP_STCON	0004	/* Set controller characteristics command */
#define	M_OP_SEREX	0007	/* Serious exception end message */
#define	M_OP_AVAIL	0010	/* Available command */
#define	M_OP_ONLIN	0011	/* Online command */
#define	M_OP_STUNT	0012	/* Set unit characteristics command */
#define	M_OP_DTACP	0013	/* Determine access paths command */
#define	M_OP_ACCES	0020	/* Access command */
#define	M_OP_CMPCD	0021	/* Compare controller data command */
#define	M_OP_ERASE	0022	/* Erase command */
#define	M_OP_FLUSH	0023	/* Flush command */
#define	M_OP_REPLC	0024	/* Replace command */
#define	M_OP_COMP	0040	/* Compare host data command */
#define	M_OP_READ	0041	/* Read command */
#define	M_OP_WRITE	0042	/* Write command */
#define	M_OP_AVATN	0100	/* Available attention message */
#define	M_OP_DUPUN	0101	/* Duplicate unit number attention message */
#define	M_OP_ACPTH	0102	/* Access path attention message */
#define	M_OP_END	0200	/* End message flag */


/*
 * Generic command modifiers
 */
#define	M_MD_EXPRS	0100000		/* Express request */
#define	M_MD_COMP	0040000		/* Compare */
#define	M_MD_CLSEX	0020000		/* Clear serious exception */
#define	M_MD_ERROR	0010000		/* Force error */
#define	M_MD_SCCHH	0004000		/* Suppress caching (high speed) */
#define	M_MD_SCCHL	0002000		/* Suppress caching (low speed) */
#define	M_MD_SECOR	0001000		/* Suppress error correction */
#define	M_MD_SEREC	0000400		/* Suppress error recovery */
#define	M_MD_SSHDW	0000200		/* Suppress shadowing */
#define	M_MD_WBKNV	0000100		/* Write back (non-volatile) */
#define	M_MD_WBKVL	0000040		/* Write back (volatile) */
#define	M_MD_WRSEQ	0000020		/* Write shadow set one unit at a time */

/*
 * AVAILABLE command modifiers
 */
#define	M_MD_ALLCD	0000002		/* All class drivers */
#define	M_MD_SPNDW	0000001		/* Spin down */

/*
 * FLUSH command modifiers
 */
#define	M_MD_FLENU	0000001		/* Flush entire unit */
#define	M_MD_VOLTL	0000002		/* Volatile only */

/*
 * GET UNIT STATUS command modifiers
 */
#define	M_MD_NXUNT	0000001		/* Next unit */

/*
 * ONLINE command modifiers
 */
#define	M_MD_RIP	0000001		/* Allow self destruction */
#define	M_MD_IGNMF	0000002		/* Ignore media format error */

/*
 * ONLINE and SET UNIT CHARACTERISTICS command modifiers
 */
#define	M_MD_ALTHI	0000040		/* Alter host identifier */
#define	M_MD_SHDSP	0000020		/* Shadow unit specified */
#define	M_MD_CLWBL	0000010		/* Clear write-back data lost */
#define	M_MD_STWRP	0000004		/* Set write protect */

/*
 * REPLACE command modifiers
 */
#define	M_MD_PRIMR	0000001		/* Primary replacement block */


/*
 * End message flags
 */
#define	M_EF_BBLKR	0200	/* Bad block reported */
#define	M_EF_BBLKU	0100	/* Bad block unreported */
#define	M_EF_ERLOG	0040	/* Error log generated */
#define	M_EF_SEREX	0020	/* Serious exception */


/*
 * Controller flags
 */
#define	M_CF_ATTN	0200	/* Enable attention messages */
#define	M_CF_MISC	0100	/* Enable miscellaneous error log messages */
#define	M_CF_OTHER	0040	/* Enable other host's error log messages */
#define	M_CF_THIS	0020	/* Enable this host's error log messages */
#define	M_CF_MLTHS	0004	/* Multi-host */
#define	M_CF_SHADW	0002	/* Shadowing */
#define	M_CF_576	0001	/* 576 byte sectors */


/*
 * Unit flags
 */
#define	M_UF_REPLC	0100000		/* Controller initiated bad block replacement */
#define	M_UF_INACT	0040000		/* Inactive shadow set unit */
#define	M_UF_WRTPH	0020000		/* Write protect (hardware) */
#define	M_UF_WRTPS	0010000		/* Write protect (software or volume) */
#define	M_UF_SCCHH	0004000		/* Suppress caching (high speed) */
#define	M_UF_SCCHL	0002000		/* Suppress caching (low speed) */
#define	M_UF_RMVBL	0000200		/* Removable media */
#define	M_UF_WBKNV	0000100		/* Write back (non-volatile) */
#define	M_UF_576	0000004		/* 576 byte sectors */
#define	M_UF_CMPWR	0000002		/* Compare writes */
#define	M_UF_CMPRD	0000001		/* Compare reads */


/*
 * Status codes
 */
#define	M_ST_MASK	037		/* Status code mask */
#define	M_ST_SUCC	000		/* Success */
#define	M_ST_ICMD	001		/* Invalid command */
#define	M_ST_ABRTD	002		/* Command aborted */
#define	M_ST_OFFLN	003		/* Unit offline */
#define	M_ST_AVLBL	004		/* Unit available */
#define	M_ST_MFMTE	005		/* Media format error */
#define	M_ST_WRTPR	006		/* Write protected */
#define	M_ST_COMP	007		/* Compare error */
#define	M_ST_DATA	010		/* Data error */
#define	M_ST_HSTBF	011		/* Host buffer access error */
#define	M_ST_CNTLR	012		/* Controller error */
#define	M_ST_DRIVE	013		/* Drive error */
#define	M_ST_DIAG	037		/* Message from an internal diagnostic */

/*
 * An MSCP packet
 */

struct mscp {
	struct	mscp_header mscp_header;/* device specific header */
	long	mscp_cmdref;		/* command reference number */
	short	mscp_unit;		/* unit number */
	short	mscp_xxx1;		/* unused */
	u_char	mscp_opcode;		/* opcode */
	u_char	mscp_flags;		/* end message flags */
	short	mscp_modifier;		/* modifiers */
	union {
	struct {
		long	Mscp_bytecnt;	/* byte count */
		long	Mscp_buffer;	/* buffer descriptor */
		long	Mscp_xxx2[2];	/* unused */
		long	Mscp_lbn;	/* logical block number */
		long	Mscp_xxx4;	/* unused */
		long	*Mscp_dscptr;	/* pointer to descriptor (software) */
		long	Mscp_sftwds[4];	/* software words, padding */
	} mscp_generic;
	struct {
		short	Mscp_version;	/* MSCP version */
		short	Mscp_cntflgs;	/* controller flags */
		short	Mscp_hsttmo;	/* host timeout */
		short	Mscp_usefrac;	/* use fraction */
		long	Mscp_time;	/* time and date */
	} mscp_setcntchar;
	struct {
		short	Mscp_multunt;	/* multi-unit code */
		short	Mscp_unitflgs;	/* unit flags */
		long	Mscp_hostid;	/* host identifier */
		quad	Mscp_unitid;	/* unit identifier */
		long	Mscp_mediaid;	/* media type identifier */
		short	Mscp_shdwunt;	/* shadow unit */
		short	Mscp_shdwsts;	/* shadow status */
		short	Mscp_track;	/* track size */
		short	Mscp_group;	/* group size */
		short	Mscp_cylinder;	/* cylinder size */
		short	Mscp_xxx3;	/* reserved */
		short	Mscp_rctsize;	/* RCT table size */
		char	Mscp_rbns;	/* RBNs / track */
		char	Mscp_rctcpys;	/* RCT copies */
	} mscp_getunitsts;
	} mscp_un;
	short mscp_fil1;
	short mscp_fil2;
	short mscp_fil3;
};

#define mscp_msglen (sizeof (struct mscp) - sizeof(struct mscp_header))

/*
 * generic packet
 */

#define	mscp_bytecnt	mscp_un.mscp_generic.Mscp_bytecnt
#define	mscp_buffer	mscp_un.mscp_generic.Mscp_buffer
#define	mscp_lbn	mscp_un.mscp_generic.Mscp_lbn
#define	mscp_dscptr	mscp_un.mscp_generic.Mscp_dscptr
#define	mscp_sftwds	mscp_un.mscp_generic.Mscp_sftwds
#define	mscp_status	mscp_modifier

/*
 * Abort / Get Command Status packet
 */

#define	mscp_outref	mscp_bytecnt

/*
 * Online / Set Unit Characteristics packet
 */

#define	mscp_errlgfl	mscp_lbn
#define	mscp_copyspd	mscp_shdwsts

/*
 * Replace packet
 */

#define	mscp_rbn	mscp_bytecnt

/*
 * Set Controller Characteristics packet
 */

#define	mscp_version	mscp_un.mscp_setcntchar.Mscp_version
#define	mscp_cntflgs	mscp_un.mscp_setcntchar.Mscp_cntflgs
#define	mscp_hsttmo	mscp_un.mscp_setcntchar.Mscp_hsttmo
#define	mscp_usefrac	mscp_un.mscp_setcntchar.Mscp_usefrac
#define	mscp_time	mscp_un.mscp_setcntchar.Mscp_time

/*
 * Get Unit Status end packet
 */

#define	mscp_multunt	mscp_un.mscp_getunitsts.Mscp_multunt
#define	mscp_unitflgs	mscp_un.mscp_getunitsts.Mscp_unitflgs
#define	mscp_hostid	mscp_un.mscp_getunitsts.Mscp_hostid
#define	mscp_unitid	mscp_un.mscp_getunitsts.Mscp_unitid
#define	mscp_mediaid	mscp_un.mscp_getunitsts.Mscp_mediaid
#define	mscp_shdwunt	mscp_un.mscp_getunitsts.Mscp_shdwunt
#define	mscp_shdwsts	mscp_un.mscp_getunitsts.Mscp_shdwsts
#define	mscp_track	mscp_un.mscp_getunitsts.Mscp_track
#define	mscp_group	mscp_un.mscp_getunitsts.Mscp_group
#define	mscp_cylinder	mscp_un.mscp_getunitsts.Mscp_cylinder
#define	mscp_rctsize	mscp_un.mscp_getunitsts.Mscp_rctsize
#define	mscp_rbns	mscp_un.mscp_getunitsts.Mscp_rbns
#define	mscp_rctcpys	mscp_un.mscp_getunitsts.Mscp_rctcpys

/*
 * Online / Set Unit Characteristics end packet
 */

#define	mscp_untsize	mscp_dscptr
#define	mscp_volser	mscp_sftwds[0]

/*
 * Set Controller Characteristics end packet
 */

#define	mscp_cnttmo	mscp_hsttmo
#define	mscp_cntcmdl	mscp_usefrac
#define	mscp_cntid	mscp_unitid


/*
 * Error Log message format codes
 */
#define	M_FM_CNTERR	0	/* Controller error */
#define	M_FM_BUSADDR	1	/* Host memory access error */
#define	M_FM_DISKTRN	2	/* Disk transfer error */
#define	M_FM_SDI	3	/* SDI error */
#define	M_FM_SMLDSK	4	/* Small disk error */

/*
 * Error Log message flags
 */
#define	M_LF_SUCC	0200	/* Operation successful */
#define	M_LF_CONT	0100	/* Operation continuing */
#define	M_LF_SQNRS	0001	/* Sequence number reset */

/*
 * MSCP Error Log packet
 *
 *	NOTE: MSCP packet must be padded to this size.
 */

struct mslg {
	struct	mscp_header mslg_header;/* device specific header */
	long	mslg_cmdref;		/* command reference number */
	short	mslg_unit;		/* unit number */
	short	mslg_seqnum;		/* sequence number */
	u_char	mslg_format;		/* format */
	u_char	mslg_flags;		/* error log message flags */
	short	mslg_event;		/* event code */
	quad	mslg_cntid;		/* controller id */
	u_char	mslg_cntsvr;		/* controller software version */
	u_char	mslg_cnthvr;		/* controller hardware version */
	short	mslg_multunt;		/* multi-unit code */
	quad	mslg_unitid;		/* unit id */
	u_char	mslg_unitsvr;		/* unit software version */
	u_char	mslg_unithvr;		/* unit hardware version */
	short	mslg_group;		/* group; retry + level */
	long	mslg_volser;		/* volume serial number */
	long	mslg_hdr;		/* header */
	char	mslg_sdistat[12];	/* SDI status information */
};

#define	mslg_busaddr	mslg_unitid.val[0]
#define	mslg_sdecyl	mslg_group
Commit	Line	Data
da7c5cc6 KM	1	/*
	2	* Copyright (c) 1982 Regents of the University of California.
	3	* All rights reserved. The Berkeley software License Agreement
	4	* specifies the terms and conditions for redistribution.
	5	*
	6	* @(#)mscp.h 6.3 (Berkeley) %G%
	7	*/
478417a2	8
5feac14a BJ	9	/*
	10	* Definitions for the Mass Storage Control Protocol
	11	*/
	12
	13
	14	/*
	15	* Control message opcodes
	16	*/
	17	#define M_OP_ABORT 0001 /* Abort command */
	18	#define M_OP_GTCMD 0002 /* Get command status command */
	19	#define M_OP_GTUNT 0003 /* Get unit status command */
	20	#define M_OP_STCON 0004 /* Set controller characteristics command */
	21	#define M_OP_SEREX 0007 /* Serious exception end message */
	22	#define M_OP_AVAIL 0010 /* Available command */
	23	#define M_OP_ONLIN 0011 /* Online command */
	24	#define M_OP_STUNT 0012 /* Set unit characteristics command */
	25	#define M_OP_DTACP 0013 /* Determine access paths command */
	26	#define M_OP_ACCES 0020 /* Access command */
	27	#define M_OP_CMPCD 0021 /* Compare controller data command */
	28	#define M_OP_ERASE 0022 /* Erase command */
	29	#define M_OP_FLUSH 0023 /* Flush command */
	30	#define M_OP_REPLC 0024 /* Replace command */
	31	#define M_OP_COMP 0040 /* Compare host data command */
	32	#define M_OP_READ 0041 /* Read command */
	33	#define M_OP_WRITE 0042 /* Write command */
	34	#define M_OP_AVATN 0100 /* Available attention message */
	35	#define M_OP_DUPUN 0101 /* Duplicate unit number attention message */
	36	#define M_OP_ACPTH 0102 /* Access path attention message */
	37	#define M_OP_END 0200 /* End message flag */
	38
	39
	40	/*
	41	* Generic command modifiers
	42	*/
	43	#define M_MD_EXPRS 0100000 /* Express request */
	44	#define M_MD_COMP 0040000 /* Compare */
	45	#define M_MD_CLSEX 0020000 /* Clear serious exception */
	46	#define M_MD_ERROR 0010000 /* Force error */
	47	#define M_MD_SCCHH 0004000 /* Suppress caching (high speed) */
	48	#define M_MD_SCCHL 0002000 /* Suppress caching (low speed) */
	49	#define M_MD_SECOR 0001000 /* Suppress error correction */
	50	#define M_MD_SEREC 0000400 /* Suppress error recovery */
	51	#define M_MD_SSHDW 0000200 /* Suppress shadowing */
	52	#define M_MD_WBKNV 0000100 /* Write back (non-volatile) */
	53	#define M_MD_WBKVL 0000040 /* Write back (volatile) */
	54	#define M_MD_WRSEQ 0000020 /* Write shadow set one unit at a time */
	55
	56	/*
	57	* AVAILABLE command modifiers
	58	*/
	59	#define M_MD_ALLCD 0000002 /* All class drivers */
	60	#define M_MD_SPNDW 0000001 /* Spin down */
	61
	62	/*
	63	* FLUSH command modifiers
	64	*/
	65	#define M_MD_FLENU 0000001 /* Flush entire unit */
	66	#define M_MD_VOLTL 0000002 /* Volatile only */
	67
	68	/*
	69	* GET UNIT STATUS command modifiers
	70	*/
	71	#define M_MD_NXUNT 0000001 /* Next unit */
	72
73	/*
74	* ONLINE command modifiers
75	*/
76	#define M_MD_RIP 0000001 /* Allow self destruction */
77	#define M_MD_IGNMF 0000002 /* Ignore media format error */
78
79	/*
80	* ONLINE and SET UNIT CHARACTERISTICS command modifiers
81	*/
82	#define M_MD_ALTHI 0000040 /* Alter host identifier */
83	#define M_MD_SHDSP 0000020 /* Shadow unit specified */
84	#define M_MD_CLWBL 0000010 /* Clear write-back data lost */
85	#define M_MD_STWRP 0000004 /* Set write protect */
86
87	/*
88	* REPLACE command modifiers
89	*/
90	#define M_MD_PRIMR 0000001 /* Primary replacement block */
91
92
93	/*
94	* End message flags
95	*/
96	#define M_EF_BBLKR 0200 /* Bad block reported */
97	#define M_EF_BBLKU 0100 /* Bad block unreported */
98	#define M_EF_ERLOG 0040 /* Error log generated */
99	#define M_EF_SEREX 0020 /* Serious exception */
100
101
102	/*
103	* Controller flags
104	*/
105	#define M_CF_ATTN 0200 /* Enable attention messages */
106	#define M_CF_MISC 0100 /* Enable miscellaneous error log messages */
107	#define M_CF_OTHER 0040 /* Enable other host's error log messages */
108	#define M_CF_THIS 0020 /* Enable this host's error log messages */
109	#define M_CF_MLTHS 0004 /* Multi-host */
110	#define M_CF_SHADW 0002 /* Shadowing */
111	#define M_CF_576 0001 /* 576 byte sectors */
112
113
114	/*
115	* Unit flags
116	*/
117	#define M_UF_REPLC 0100000 /* Controller initiated bad block replacement */
118	#define M_UF_INACT 0040000 /* Inactive shadow set unit */
119	#define M_UF_WRTPH 0020000 /* Write protect (hardware) */
120	#define M_UF_WRTPS 0010000 /* Write protect (software or volume) */
121	#define M_UF_SCCHH 0004000 /* Suppress caching (high speed) */
122	#define M_UF_SCCHL 0002000 /* Suppress caching (low speed) */
123	#define M_UF_RMVBL 0000200 /* Removable media */
124	#define M_UF_WBKNV 0000100 /* Write back (non-volatile) */
125	#define M_UF_576 0000004 /* 576 byte sectors */
126	#define M_UF_CMPWR 0000002 /* Compare writes */
127	#define M_UF_CMPRD 0000001 /* Compare reads */
128
129
130	/*
131	* Status codes
132	*/
133	#define M_ST_MASK 037 /* Status code mask */
134	#define M_ST_SUCC 000 /* Success */
135	#define M_ST_ICMD 001 /* Invalid command */
136	#define M_ST_ABRTD 002 /* Command aborted */
137	#define M_ST_OFFLN 003 /* Unit offline */
138	#define M_ST_AVLBL 004 /* Unit available */
139	#define M_ST_MFMTE 005 /* Media format error */
140	#define M_ST_WRTPR 006 /* Write protected */
141	#define M_ST_COMP 007 /* Compare error */
142	#define M_ST_DATA 010 /* Data error */
143	#define M_ST_HSTBF 011 /* Host buffer access error */
144	#define M_ST_CNTLR 012 /* Controller error */
145	#define M_ST_DRIVE 013 /* Drive error */
146	#define M_ST_DIAG 037 /* Message from an internal diagnostic */
147
5feac14a BJ	148	/*
	149	* An MSCP packet
	150	*/
	151
	152	struct mscp {
	153	struct mscp_header mscp_header;/* device specific header */
	154	long mscp_cmdref; /* command reference number */
	155	short mscp_unit; /* unit number */
	156	short mscp_xxx1; /* unused */
	157	u_char mscp_opcode; /* opcode */
	158	u_char mscp_flags; /* end message flags */
	159	short mscp_modifier; /* modifiers */
	160	union {
	161	struct {
	162	long Mscp_bytecnt; /* byte count */
	163	long Mscp_buffer; /* buffer descriptor */
	164	long Mscp_xxx2[2]; /* unused */
	165	long Mscp_lbn; /* logical block number */
	166	long Mscp_xxx4; /* unused */
	167	long Mscp_dscptr; / pointer to descriptor (software) */
	168	long Mscp_sftwds[4]; /* software words, padding */
	169	} mscp_generic;
	170	struct {
	171	short Mscp_version; /* MSCP version */
	172	short Mscp_cntflgs; /* controller flags */
	173	short Mscp_hsttmo; /* host timeout */
	174	short Mscp_usefrac; /* use fraction */
	175	long Mscp_time; /* time and date */
	176	} mscp_setcntchar;
	177	struct {
	178	short Mscp_multunt; /* multi-unit code */
	179	short Mscp_unitflgs; /* unit flags */
	180	long Mscp_hostid; /* host identifier */
	181	quad Mscp_unitid; /* unit identifier */
	182	long Mscp_mediaid; /* media type identifier */
	183	short Mscp_shdwunt; /* shadow unit */
	184	short Mscp_shdwsts; /* shadow status */
	185	short Mscp_track; /* track size */
	186	short Mscp_group; /* group size */
	187	short Mscp_cylinder; /* cylinder size */
	188	short Mscp_xxx3; /* reserved */
	189	short Mscp_rctsize; /* RCT table size */
	190	char Mscp_rbns; /* RBNs / track */
	191	char Mscp_rctcpys; /* RCT copies */
	192	} mscp_getunitsts;
	193	} mscp_un;
478417a2 SL	194	short mscp_fil1;
	195	short mscp_fil2;
	196	short mscp_fil3;
5feac14a BJ	197	};
5feac14a BJ	198
478417a2 SL	199	#define mscp_msglen (sizeof (struct mscp) - sizeof(struct mscp_header))
478417a2 SL	200
5feac14a BJ	201	/*
	202	* generic packet
	203	*/
	204
	205	#define mscp_bytecnt mscp_un.mscp_generic.Mscp_bytecnt
	206	#define mscp_buffer mscp_un.mscp_generic.Mscp_buffer
	207	#define mscp_lbn mscp_un.mscp_generic.Mscp_lbn
	208	#define mscp_dscptr mscp_un.mscp_generic.Mscp_dscptr
	209	#define mscp_sftwds mscp_un.mscp_generic.Mscp_sftwds
	210	#define mscp_status mscp_modifier
	211
	212	/*
	213	* Abort / Get Command Status packet
	214	*/
	215
	216	#define mscp_outref mscp_bytecnt
	217
	218	/*
	219	* Online / Set Unit Characteristics packet
	220	*/
	221
	222	#define mscp_errlgfl mscp_lbn
	223	#define mscp_copyspd mscp_shdwsts
	224
	225	/*
	226	* Replace packet
	227	*/
	228
	229	#define mscp_rbn mscp_bytecnt
	230
	231	/*
	232	* Set Controller Characteristics packet
	233	*/
	234
	235	#define mscp_version mscp_un.mscp_setcntchar.Mscp_version
	236	#define mscp_cntflgs mscp_un.mscp_setcntchar.Mscp_cntflgs
	237	#define mscp_hsttmo mscp_un.mscp_setcntchar.Mscp_hsttmo
	238	#define mscp_usefrac mscp_un.mscp_setcntchar.Mscp_usefrac
	239	#define mscp_time mscp_un.mscp_setcntchar.Mscp_time
	240
	241	/*
	242	* Get Unit Status end packet
	243	*/
	244
	245	#define mscp_multunt mscp_un.mscp_getunitsts.Mscp_multunt
	246	#define mscp_unitflgs mscp_un.mscp_getunitsts.Mscp_unitflgs
	247	#define mscp_hostid mscp_un.mscp_getunitsts.Mscp_hostid
	248	#define mscp_unitid mscp_un.mscp_getunitsts.Mscp_unitid
	249	#define mscp_mediaid mscp_un.mscp_getunitsts.Mscp_mediaid
	250	#define mscp_shdwunt mscp_un.mscp_getunitsts.Mscp_shdwunt
	251	#define mscp_shdwsts mscp_un.mscp_getunitsts.Mscp_shdwsts
	252	#define mscp_track mscp_un.mscp_getunitsts.Mscp_track
	253	#define mscp_group mscp_un.mscp_getunitsts.Mscp_group
	254	#define mscp_cylinder mscp_un.mscp_getunitsts.Mscp_cylinder
	255	#define mscp_rctsize mscp_un.mscp_getunitsts.Mscp_rctsize
	256	#define mscp_rbns mscp_un.mscp_getunitsts.Mscp_rbns
	257	#define mscp_rctcpys mscp_un.mscp_getunitsts.Mscp_rctcpys
	258
	259	/*
	260	* Online / Set Unit Characteristics end packet
	261	*/
	262
	263	#define mscp_untsize mscp_dscptr
	264	#define mscp_volser mscp_sftwds[0]
265
266	/*
267	* Set Controller Characteristics end packet
268	*/
269
270	#define mscp_cnttmo mscp_hsttmo
271	#define mscp_cntcmdl mscp_usefrac
272	#define mscp_cntid mscp_unitid
273
274
275	/*
276	* Error Log message format codes
277	*/
278	#define M_FM_CNTERR 0 /* Controller error */
279	#define M_FM_BUSADDR 1 /* Host memory access error */
280	#define M_FM_DISKTRN 2 /* Disk transfer error */
281	#define M_FM_SDI 3 /* SDI error */
282	#define M_FM_SMLDSK 4 /* Small disk error */
283
284	/*
285	* Error Log message flags
286	*/
287	#define M_LF_SUCC 0200 /* Operation successful */
288	#define M_LF_CONT 0100 /* Operation continuing */
289	#define M_LF_SQNRS 0001 /* Sequence number reset */
290
291	/*
292	* MSCP Error Log packet
293	*
294	* NOTE: MSCP packet must be padded to this size.
295	*/
296
297	struct mslg {
298	struct mscp_header mslg_header;/* device specific header */
299	long mslg_cmdref; /* command reference number */
300	short mslg_unit; /* unit number */
301	short mslg_seqnum; /* sequence number */
302	u_char mslg_format; /* format */
303	u_char mslg_flags; /* error log message flags */
304	short mslg_event; /* event code */
305	quad mslg_cntid; /* controller id */
306	u_char mslg_cntsvr; /* controller software version */
307	u_char mslg_cnthvr; /* controller hardware version */
308	short mslg_multunt; /* multi-unit code */
309	quad mslg_unitid; /* unit id */
310	u_char mslg_unitsvr; /* unit software version */
311	u_char mslg_unithvr; /* unit hardware version */
75e402f9	312	short mslg_group; /* group; retry + level */
5feac14a	313	long mslg_volser; /* volume serial number */
75e402f9 SL	314	long mslg_hdr; /* header */
75e402f9 SL	315	char mslg_sdistat[12]; /* SDI status information */
5feac14a BJ	316	};
5feac14a BJ	317
3b1e560f	318	#define mslg_busaddr mslg_unitid.val[0]
5feac14a	319	#define mslg_sdecyl mslg_group
478417a2	320