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cissreg.h revision 1.5
      1 /*	$NetBSD: cissreg.h,v 1.5 2016/06/17 17:05:04 christos Exp $	*/
      2 /*	$OpenBSD: cissreg.h,v 1.11 2010/06/03 01:02:13 dlg Exp $	*/
      3 
      4 /*
      5  * Copyright (c) 2005,2006 Michael Shalayeff
      6  * All rights reserved.
      7  *
      8  * Permission to use, copy, modify, and distribute this software for any
      9  * purpose with or without fee is hereby granted, provided that the above
     10  * copyright notice and this permission notice appear in all copies.
     11  *
     12  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
     13  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
     14  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
     15  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
     16  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER IN
     17  * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
     18  * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
     19  */
     20 
     21 #define	CISS_BIGBIT	0x80	/* texas radio and the big beat! */
     22 
     23 #define	CISS_IDB	0x20
     24 #define	CISS_IDB_CFG	0x01
     25 #define	CISS_ISR	0x30
     26 #define	CISS_IMR	0x34
     27 #define	CISS_INTR_OPQ_SA5	(1<<3)
     28 #define	CISS_INTR_OPQ_SA5B	(1<<2)
     29 #define	CISS_INTR_OPQ	(CISS_INTR_OPQ_SA5|CISS_INTR_OPQ_SA5B)
     30 #define	CISS_INTR_MSI		(1<<0)
     31 #define	CISS_INQ	0x40
     32 #define	CISS_OUTQ	0x44
     33 #define	CISS_CFG_BAR	0xb4
     34 #define	CISS_CFG_OFF	0xb8
     35 
     36 /* 64bit FIFO mode input/output post queues */
     37 #define CISS_INQ64_LO	0xc0
     38 #define CISS_INQ64_HI	0xc4
     39 #define CISS_OUTQ64_LO	0xc8
     40 #define CISS_OUTQ64_HI	0xcc
     41 
     42 #define	CISS_DRVMAP_SIZE	(128 / 8)
     43 
     44 #define	CISS_CMD_CTRL_GET	0x26
     45 #define	CISS_CMD_CTRL_SET	0x27
     46 /* sub-commands for GET/SET */
     47 #define	CISS_CMS_CTRL_LDID	0x10
     48 #define	CISS_CMS_CTRL_CTRL	0x11
     49 #define	CISS_CMS_CTRL_LDSTAT	0x12
     50 #define	CISS_CMS_CTRL_PDID	0x15
     51 #define	CISS_CMS_CTRL_PDBLINK	0x16
     52 #define	CISS_CMS_CTRL_PDBLSENS	0x17
     53 #define	CISS_CMS_CTRL_LDIDEXT	0x18
     54 #define	CISS_CMS_CTRL_REDSTAT	0x82
     55 #define	CISS_CMS_CTRL_FLUSH	0xc2
     56 #define	CISS_CMS_CTRL_ACCEPT	0xe0
     57 
     58 #define	CISS_CMD_READ	0xc0
     59 #define	CISS_CMD_READ_EVENT	0xd0
     60 #define	CISS_EVENT_RECENT	0x08	/* ignore previous events */
     61 #define	CISS_EVENT_RSTOLD	0x04	/* start w/ the oldest one */
     62 #define	CISS_EVENT_ORDER	0x02	/* keep the order */
     63 #define	CISS_EVENT_SYNC		0x01	/* sync mode: wait till new come */
     64 #define	CISS_CMD_LDMAP	0xc2
     65 #define	CISS_CMD_PDMAP	0xc3
     66 
     67 #define	ciss_bitset(d, v)	((v)[(d) >> 3] & (1 << ((d) & 7)))
     68 
     69 struct ciss_softc;
     70 
     71 struct ciss_config {
     72 	u_int32_t	signature;
     73 #define	CISS_SIGNATURE	(*(const u_int32_t *)"CISS")
     74 	u_int32_t	version;
     75 	u_int32_t	methods;
     76 #define CISS_METH_READY		0x00000001 /* indicate to accept commands */
     77 #define CISS_METH_SIMPL		0x00000002 /* simple mode */
     78 #define CISS_METH_PERF		0x00000004 /* performant mode */
     79 #define CISS_METH_EMQ		0x00000008 /* MEMQ method */
     80 #define CISS_METH_BIT63		0x08000000 /* address bit 63 is valid */
     81 #define CISS_METH_FIFO64_RRO	0x10000000 /* 64bit FIFO reverse read order */
     82 #define CISS_METH_SHORT_TAG	0x20000000 /* short 4 byte tag support */
     83 #define CISS_METH_MSIX		0x40000000 /* directed MSI-X support */
     84 #define CISS_METH_FIFO64	0x80000000 /* 64bit FIFO support */
     85 	u_int32_t	amethod;
     86 	u_int32_t	rmethod;
     87 	u_int32_t	paddr_lim;
     88 	u_int32_t	int_delay;
     89 	u_int32_t	int_count;
     90 	u_int32_t	maxcmd;
     91 	u_int32_t	scsibus;
     92 #define	CISS_BUS_U2	0x0001
     93 #define	CISS_BUS_U3	0x0002
     94 #define	CISS_BUS_FC1	0x0100
     95 #define	CISS_BUS_FC2	0x0200
     96 	u_int32_t	troff;
     97 	u_int8_t	hostname[16];
     98 	u_int32_t	heartbeat;
     99 	u_int32_t	driverf;
    100 #define	CISS_DRV_UATT	0x0001
    101 #define	CISS_DRV_QINI	0x0002
    102 #define	CISS_DRV_LCKINT	0x0004
    103 #define	CISS_DRV_QTAGS	0x0008
    104 #define	CISS_DRV_ALPHA	0x0010
    105 #define	CISS_DRV_LUNS	0x0020
    106 #define	CISS_DRV_MSGRQ	0x0080
    107 #define	CISS_DRV_DBRD	0x0100
    108 #define	CISS_DRV_PRF	0x0200
    109 	u_int32_t	maxsg;
    110 } __packed;
    111 
    112 struct ciss_inquiry {
    113 	u_int8_t	numld;
    114 	u_int8_t	sign[4];
    115 	u_int8_t	fw_running[4];
    116 	u_int8_t	fw_stored[4];
    117 	u_int8_t	hw_rev;
    118 	u_int8_t	resv0[12];
    119 	u_int16_t	pci_vendor;
    120 	u_int16_t	pci_product;
    121 	u_int8_t	resv1[10];
    122 	u_int8_t	market_rev;
    123 	u_int8_t	flags;
    124 #define	CISS_INQ_WIDE	0x08
    125 #define	CISS_INQ_BIGMAP	0x80
    126 #define	CISS_INQ_BITS	"\020\04WIDE\010BIGMAP"
    127 	u_int8_t	resv2[2];
    128 	u_int8_t	nscsi_bus;
    129 	u_int8_t	resv3[4];
    130 	u_int8_t	clk[4];		/* unaligned dumbness */
    131 	u_int8_t	buswidth;
    132 	u_int8_t	disks[CISS_DRVMAP_SIZE];
    133 	u_int8_t	extdisks[CISS_DRVMAP_SIZE];
    134 	u_int8_t	nondisks[CISS_DRVMAP_SIZE];
    135 } __packed;
    136 
    137 struct ciss_ldmap {
    138 	u_int32_t	size;
    139 	u_int32_t	resv;
    140 	struct {
    141 		u_int32_t tgt;
    142 		u_int32_t tgt2;
    143 	} map[1];
    144 } __packed;
    145 
    146 struct ciss_flush {
    147 	u_int16_t	flush;
    148 #define	CISS_FLUSH_ENABLE	0
    149 #define	CISS_FLUSH_DISABLE	1
    150 	u_int16_t	resv[255];
    151 } __packed;
    152 
    153 struct ciss_blink {
    154 	u_int32_t	duration;	/* x100ms */
    155 	u_int32_t	elapsed;	/* only for sense */
    156 	u_int8_t	pdtab[256];
    157 #define	CISS_BLINK_ALL	1
    158 #define	CISS_BLINK_TIMED 2
    159 	u_int8_t	res[248];
    160 } __packed;
    161 
    162 struct ciss_ldid {
    163 	u_int16_t	blksize;
    164 	u_int16_t	nblocks[2];	/* UNALIGNED! */
    165 	u_int8_t	params[16];
    166 	u_int8_t	type;
    167 #define	CISS_LD_RAID0	0
    168 #define	CISS_LD_RAID4	1
    169 #define	CISS_LD_RAID1	2
    170 #define	CISS_LD_RAID5	3
    171 #define	CISS_LD_RAID51	4
    172 #define	CISS_LD_RAIDADG	5
    173 	u_int8_t	res0;
    174 	u_int8_t	bios_dis;
    175 	u_int8_t	res1;
    176 	u_int32_t	id;
    177 	u_int8_t	label[64];
    178 	u_int64_t	nbigblocks;
    179 	u_int8_t	res2[410];
    180 } __packed;
    181 
    182 struct ciss_ldstat {
    183 	u_int8_t	stat;
    184 #define	CISS_LD_OK	0
    185 #define	CISS_LD_FAILED	1
    186 #define	CISS_LD_UNCONF	2
    187 #define	CISS_LD_DEGRAD	3
    188 #define	CISS_LD_RBLDRD	4	/* ready for rebuild */
    189 #define	CISS_LD_REBLD	5
    190 #define	CISS_LD_PDINV	6	/* wrong phys drive replaced */
    191 #define	CISS_LD_PDUNC	7	/* phys drive is not connected proper */
    192 #define	CISS_LD_EXPND	10	/* expanding */
    193 #define	CISS_LD_NORDY	11	/* volume is not ready */
    194 #define	CISS_LD_QEXPND	12	/* queued for expansion */
    195 	u_int8_t	failed[4];	/* failed map */
    196 	u_int8_t	res0[416];
    197 	u_int8_t	prog[4];	/* blocks left to rebuild/expand */
    198 	u_int8_t	rebuild;	/* drive that is rebuilding */
    199 	u_int16_t	remapcnt[32];	/* count of remapped blocks for pds */
    200 	u_int8_t	replaced[4];	/* replaced drives map */
    201 	u_int8_t	spare[4];	/* used spares map */
    202 	u_int8_t	sparestat;	/* spare status */
    203 #define	CISS_LD_CONF	0x01	/* spare configured */
    204 #define	CISS_LD_RBLD	0x02	/* spare is used and rebuilding */
    205 #define	CISS_LD_DONE	0x04	/* spare rebuild done */
    206 #define	CISS_LD_FAIL	0x08	/* at least one spare drive has failed */
    207 #define	CISS_LD_USED	0x10	/* at least one spare drive is used */
    208 #define	CISS_LD_AVAIL	0x20	/* at least one spare is available */
    209 	u_int8_t	sparemap[32];	/* spare->pd replacement map */
    210 	u_int8_t	replok[4];	/* replaced failed map */
    211 	u_int8_t	readyok;	/* ready to become ok */
    212 	u_int8_t	memfail;	/* cache mem failure */
    213 	u_int8_t	expfail;	/* expansion failure */
    214 	u_int8_t	rebldfail;	/* rebuild failure */
    215 #define	CISS_LD_RBLD_READ	0x01	/* read faild */
    216 #define	CISS_LD_RBLD_WRITE	0x02	/* write fail */
    217 	u_int8_t	bigfailed[16];	/* bigmap vers of same of the above */
    218 	u_int8_t	bigremapcnt[256];
    219 	u_int8_t	bigreplaced[16];
    220 	u_int8_t	bigspare[16];
    221 	u_int8_t	bigsparemap[128];
    222 	u_int8_t	bigreplok[16];
    223 	u_int8_t	bigrebuild;	/* big-number rebuilding driveno */
    224 } __packed;
    225 
    226 struct ciss_pdid {
    227 	u_int8_t	bus;
    228 	u_int8_t	target;
    229 	u_int16_t	blksz;
    230 	u_int32_t	nblocks;
    231 	u_int32_t	resblks;
    232 	u_int8_t	model[40];
    233 	u_int8_t	serial[40];
    234 	u_int8_t	revision[8];
    235 	u_int8_t	bits;
    236 	u_int8_t	res0[2];
    237 	u_int8_t	present;
    238 #define	CISS_PD_PRESENT	0x01
    239 #define	CISS_PD_NONDSK	0x02
    240 #define	CISS_PD_WIDE	0x04
    241 #define	CISS_PD_SYNC	0x08
    242 #define	CISS_PD_NARROW	0x10
    243 #define	CISS_PD_W2NARR	0x20	/* wide downgrade to narrow */
    244 #define	CISS_PD_ULTRA	0x40
    245 #define	CISS_PD_ULTRA2	0x80
    246 	u_int8_t	config;
    247 #define	CISS_PD_SMART	0x01
    248 #define	CISS_PD_SMERRR	0x02
    249 #define	CISS_PD_SMERRE	0x04
    250 #define	CISS_PD_SMERRD	0x08
    251 #define	CISS_PD_EXT	0x10
    252 #define	CISS_PD_CONF	0x20
    253 #define	CISS_PD_SPARE	0x40
    254 #define	CISS_PD_CASAVE	0x80
    255 	u_int8_t	res1;
    256 	u_int8_t	cache;
    257 #define	CISS_PD_CACHE	0x01
    258 #define	CISS_PD_CASAFE	0x01
    259 	u_int8_t	res2[5];
    260 	u_int8_t	connector[2];
    261 	u_int8_t	res3;
    262 	u_int8_t	bay;
    263 	u_int16_t	rpm;
    264 	u_int8_t	type;
    265 	u_int8_t	res4[393];
    266 } __packed;
    267 
    268 struct ciss_event {
    269 	u_int32_t	reltime;	/* time since controller boot */
    270 	u_int16_t	event;
    271 #define	CISS_EVCLS_PROTO	0
    272 #define	CISS_EVCLS_PLUG		1
    273 #define	CISS_EVCLS_HW		2
    274 #define	CISS_EVCLS_ENV		3
    275 #define	CISS_EVCLS_PD		4	/* ciss_evpdchg in details */
    276 #define	CISS_EVCLS_LD		5
    277 #define	CISS_EVCLS_CTRL		6
    278 #define	CISS_EVCLS_CISS		8	/*  funky errors */
    279 #define	CISS_EVCLS_RESV		9
    280 	u_int16_t	subevent;
    281 #define	CISS_EVPROTO_STAT	0
    282 #define	CISS_EVPROTO_ERR	1
    283 #define	CISS_EVPLUG_PDCHG	0	/* ciss_evpdchg */
    284 #define	CISS_EVPLUG_POWER	1	/* ciss_evpschg */
    285 #define	CISS_EVPLUG_FAN		2	/* ciss_evfanchg */
    286 #define	CISS_EVPLUG_UPS		3	/* ciss_evupschg */
    287 #define	CISS_EVPLUG_CTRL	4	/* ciss_evctrlchg: ctrl removed? (; */
    288 #define	CISS_EVHW_CABLES	0
    289 #define	CISS_EVHW_MEMORY	1
    290 #define	CISS_EVHW_FAN		2	/* detail as in CISS_EVPLUG_FAN */
    291 #define	CISS_EVHW_VRM		3
    292 #define	CISS_EVENV_TEMP		0	/* ciss_evtempchg */
    293 #define	CISS_EVENV_PS		1
    294 #define	CISS_EVENV_CHASSIS	2
    295 #define	CISS_EVENV_AC		3
    296 #define	CISS_EVPD_STAT		0
    297 #define	CISS_EVLD_STAT		0
    298 #define	CISS_EVLD_ERR		1
    299 #define	CISS_EVLD_CHECK		2	/* surface check */
    300 #define	CISS_EVCTRL_STAT	0
    301 	u_int16_t	detail;
    302 #define	CISS_EVSTAT_NONE	0
    303 #define	CISS_EVSTAT_DISABLE	1
    304 #define	CISS_EVSTAT_TMO		2	/* async event poll timeout */
    305 #define	CISS_EVERR_OVERFLOW	0	/* event queue overflow */
    306 #define	CISS_EVPLUG_REMOVE	0
    307 #define	CISS_EVPLUG_INSERT	1
    308 #define	CISS_EVFAN_FAULT	0
    309 #define	CISS_EVFAN_DEGRADED	1
    310 #define	CISS_EVFAN_OK		2
    311 #define	CISS_EVVRM_REMOVE	0
    312 #define	CISS_EVVRM_INSERT	1
    313 #define	CISS_EVVRM_FAILED	2
    314 #define	CISS_EVVRM_OK		3
    315 #define	CISS_EVTEMP_LIMEX	0	/* limit exceeded */
    316 #define	CISS_EVTEMP_WARN	1
    317 #define	CISS_EVTEMP_OK		2
    318 #define	CISS_EVPS_FAIL		0
    319 #define	CISS_EVPS_OK		2
    320 #define	CISS_EVCHAS_OPEN	0
    321 #define	CISS_EVCHAS_CLOSE	2
    322 #define	CISS_EVAC_FAIL		0
    323 #define	CISS_EVAC_BATTLOW	1
    324 #define	CISS_EVPDSTAT_FAIL	0
    325 #define	CISS_EVLDSTAT_CHG	0	/* ciss_evldchg */
    326 #define	CISS_EVLDSTAT_EXMEDIA	1	/* untolerant cfg got drive replaced */
    327 #define	CISS_EVLDSTAT_RERDERR	2	/* ciss_evldrblderr */
    328 #define	CISS_EVLDSTAT_REWRERR	3	/* ciss_evldrblderr */
    329 #define	CISS_EVLDERR_FATAL	0	/* ciss_evlderr */
    330 #define	CISS_EVCHECK_DONE	0	/* details have onle 16bit ld num */
    331 #define	CISS_EVCTRLSTAT_CHG	0	/* ciss_evctrlstat */
    332 	u_int8_t	data[64];
    333 	u_int8_t	msg[80];
    334 	u_int32_t	tag;
    335 	u_int16_t	monday;
    336 	u_int16_t	year;
    337 	u_int32_t	time;
    338 	u_int16_t	presec;		/* time for events before boot */
    339 	u_int8_t	device[8];
    340 	u_int8_t	resv[336];
    341 } __packed;
    342 
    343 struct ciss_evpdchg {	/* details pointer */
    344 	u_int16_t	pd;
    345 	u_int8_t	flag;		/* 1 for configured */
    346 	u_int8_t	spare;
    347 	u_int8_t	bigpd;		/* big number of the pd */
    348 	u_int8_t	baynum;
    349 } __packed;
    350 
    351 struct ciss_evpschg {	/* details pointer */
    352 	u_int16_t	port;
    353 	u_int16_t	psid;
    354 	u_int16_t	box;
    355 } __packed;
    356 
    357 struct ciss_evfanchg {	/* details pointer */
    358 	u_int16_t	port;
    359 	u_int16_t	fanid;
    360 	u_int16_t	box;
    361 } __packed;
    362 
    363 struct ciss_evupschg {	/* details pointer */
    364 	u_int16_t	port;
    365 	u_int16_t	upsid;
    366 } __packed;
    367 
    368 struct ciss_evctrlchg {	/* details pointer */
    369 	u_int16_t	slot;
    370 } __packed;
    371 
    372 struct ciss_evtempchg {	/* details pointer */
    373 	u_int16_t	port;
    374 	u_int16_t	sensid;
    375 	u_int16_t	box;
    376 } __packed;
    377 
    378 struct ciss_evldchg {	/* details pointer */
    379 	u_int16_t	ld;
    380 	u_int8_t	prevstat;	/* same as ldstat->state */
    381 	u_int8_t	newstat;	/* same as ldstat->state */
    382 	u_int8_t	sparestat;
    383 } __packed;
    384 
    385 struct ciss_evldrblderr { /* details pointer */
    386 	u_int16_t	ld;
    387 	u_int8_t	replace;
    388 	u_int8_t	errpd;
    389 	u_int8_t	bigreplace;
    390 	u_int8_t	bigerrpd;
    391 } __packed;
    392 
    393 struct ciss_evlderr {	/* details pointer */
    394 	u_int16_t	ld;
    395 	u_int16_t	blkno[2];	/* unaligned; if >2tb see big later */
    396 	u_int16_t	count;
    397 	u_int8_t	ldcmd;
    398 	u_int8_t	bus;
    399 	u_int8_t	target;
    400 	u_int8_t	bigblkno[8];	/* unaligned */
    401 } __packed;
    402 
    403 struct ciss_evctrlstat { /* details pointer */
    404 	u_int8_t	prefctrl;
    405 	u_int8_t	currmode;
    406 	u_int8_t	redctrl;
    407 	u_int8_t	redfail;
    408 	u_int8_t	prevctrl;
    409 	u_int8_t	prevmode;
    410 	u_int8_t	prevred;
    411 	u_int8_t	prevfail;
    412 } __packed;
    413 
    414 struct ciss_cmd {
    415 	u_int8_t	resv0;	/* 00 */
    416 	u_int8_t	sgin;	/* 01: #sg in the cmd */
    417 	u_int16_t	sglen;	/* 02: #sg total */
    418 	u_int32_t	id;	/* 04: cmd id << 2 and status bits */
    419 #define	CISS_CMD_ERR	0x02
    420 	u_int32_t	id_hi;	/* 08: not used */
    421 	u_int32_t	tgt;	/* 0c: tgt:bus:mode or lun:mode */
    422 #define	CISS_CMD_MODE_PERIPH	0x00000000
    423 #define	CISS_CMD_MODE_LD	0x40000000
    424 #define	CISS_CMD_TGT_MASK	0x40ffffff
    425 #define	CISS_CMD_BUS_MASK	0x3f000000
    426 #define	CISS_CMD_BUS_SHIFT	24
    427 	u_int32_t	tgt2;	/* 10: scsi-3 address bytes */
    428 
    429 	u_int8_t	cdblen;	/* 14: valid length of cdb */
    430 	u_int8_t	flags;	/* 15 */
    431 #define	CISS_CDB_CMD	0x00
    432 #define	CISS_CDB_MSG	0x01
    433 #define	CISS_CDB_NOTAG	0x00
    434 #define	CISS_CDB_SIMPL	0x20
    435 #define	CISS_CDB_QHEAD	0x28
    436 #define	CISS_CDB_ORDR	0x30
    437 #define	CISS_CDB_AUTO	0x38
    438 #define	CISS_CDB_IN	0x80
    439 #define	CISS_CDB_OUT	0x40
    440 	u_int16_t	tmo;	/* 16: timeout in seconds */
    441 #define	CISS_MAX_CDB	16
    442 	u_int8_t	cdb[16];/* 18 */
    443 
    444 	u_int64_t	err_pa;	/* 28: pa(struct ciss_error *) */
    445 	u_int32_t	err_len;/* 30 */
    446 
    447 	struct {		/* 34 */
    448 		u_int32_t	addr_lo;
    449 		u_int32_t	addr_hi;
    450 		u_int32_t	len;
    451 		u_int32_t	flags;
    452 #define	CISS_SG_EXT	0x0001
    453 	} sgl[1];
    454 } __packed;
    455 
    456 struct ciss_error {
    457 	u_int8_t	scsi_stat;	/* SCSI_OK etc */
    458 	u_int8_t	senselen;
    459 	u_int16_t	cmd_stat;
    460 #define	CISS_ERR_OK	0
    461 #define	CISS_ERR_TGTST	1	/* target status */
    462 #define	CISS_ERR_UNRUN	2
    463 #define	CISS_ERR_OVRUN	3
    464 #define	CISS_ERR_INVCMD	4
    465 #define	CISS_ERR_PROTE	5
    466 #define	CISS_ERR_HWERR	6
    467 #define	CISS_ERR_CLOSS	7
    468 #define	CISS_ERR_ABRT	8
    469 #define	CISS_ERR_FABRT	9
    470 #define	CISS_ERR_UABRT	10
    471 #define	CISS_ERR_TMO	11
    472 #define	CISS_ERR_NABRT	12
    473 	u_int32_t	resid;
    474 	u_int8_t	err_type[4];
    475 	u_int32_t	err_info;
    476 	u_int8_t	sense[32];
    477 } __packed;
    478 
    479 struct ciss_ccb {
    480 	TAILQ_ENTRY(ciss_ccb)	ccb_link;
    481 	struct ciss_softc	*ccb_sc;
    482 	paddr_t			ccb_cmdpa;
    483 	enum {
    484 		CISS_CCB_FREE	= 0x01,
    485 		CISS_CCB_READY	= 0x02,
    486 		CISS_CCB_ONQ	= 0x04,
    487 		CISS_CCB_PREQ	= 0x08,
    488 		CISS_CCB_POLL	= 0x10,
    489 		CISS_CCB_FAIL	= 0x80
    490 #define	CISS_CCB_BITS	"\020\01FREE\02READY\03ONQ\04PREQ\05POLL\010FAIL"
    491 	} ccb_state;
    492 
    493 	struct scsipi_xfer	*ccb_xs;
    494 	size_t			ccb_len;
    495 	void			*ccb_data;
    496 	bus_dmamap_t		ccb_dmamap;
    497 
    498 	struct ciss_error	ccb_err;
    499 	struct ciss_cmd		ccb_cmd;	/* followed by sgl */
    500 };
    501 
    502 typedef TAILQ_HEAD(ciss_queue_head, ciss_ccb)     ciss_queue_head;
    503 
    504