Home | History | Annotate | Line # | Download | only in ic
      1 /*	$NetBSD: cissreg.h,v 1.11 2022/11/01 19:24:30 andvar 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_OSR	0x9c    /* outbound status register */
     34 #define CISS_ODC	0xa0    /* outbound doorbell clear register */
     35 #define CISS_ODC_CLEAR		(0x1)
     36 #define	CISS_CFG_BAR	0xb4
     37 #define	CISS_CFG_OFF	0xb8
     38 
     39 /* 64bit FIFO mode input/output post queues */
     40 #define CISS_INQ64_LO	0xc0
     41 #define CISS_INQ64_HI	0xc4
     42 #define CISS_OUTQ64_LO	0xc8
     43 #define CISS_OUTQ64_HI	0xcc
     44 
     45 #define	CISS_DRVMAP_SIZE	(128 / 8)
     46 
     47 #define	CISS_CMD_CTRL_GET	0x26
     48 #define	CISS_CMD_CTRL_SET	0x27
     49 /* sub-commands for GET/SET */
     50 #define	CISS_CMS_CTRL_LDID	0x10
     51 #define	CISS_CMS_CTRL_CTRL	0x11
     52 #define	CISS_CMS_CTRL_LDSTAT	0x12
     53 #define	CISS_CMS_CTRL_PDID	0x15
     54 #define	CISS_CMS_CTRL_PDBLINK	0x16
     55 #define	CISS_CMS_CTRL_PDBLSENS	0x17
     56 #define	CISS_CMS_CTRL_LDIDEXT	0x18
     57 #define	CISS_CMS_CTRL_REDSTAT	0x82
     58 #define	CISS_CMS_CTRL_FLUSH	0xc2
     59 #define	CISS_CMS_CTRL_ACCEPT	0xe0
     60 
     61 #define	CISS_CMD_READ	0xc0
     62 #define	CISS_CMD_READ_EVENT	0xd0
     63 #define	CISS_EVENT_RECENT	0x08	/* ignore previous events */
     64 #define	CISS_EVENT_RSTOLD	0x04	/* start w/ the oldest one */
     65 #define	CISS_EVENT_ORDER	0x02	/* keep the order */
     66 #define	CISS_EVENT_SYNC		0x01	/* sync mode: wait till new come */
     67 #define	CISS_CMD_LDMAP	0xc2
     68 #define	CISS_CMD_PDMAP	0xc3
     69 
     70 #define	ciss_bitset(d, v)	((v)[(d) >> 3] & (1 << ((d) & 7)))
     71 
     72 struct ciss_softc;
     73 
     74 struct ciss_config {
     75 	u_int32_t	signature;
     76 #define	CISS_SIGNATURE	(*(const u_int32_t *)"CISS")
     77 	u_int32_t	version;
     78 	u_int32_t	methods;
     79 #define CISS_METH_READY		0x00000001 /* indicate to accept commands */
     80 #define CISS_METH_SIMPL		0x00000002 /* simple mode */
     81 #define CISS_METH_PERF		0x00000004 /* performant mode */
     82 #define CISS_METH_EMQ		0x00000008 /* MEMQ method */
     83 #define CISS_METH_BIT63		0x08000000 /* address bit 63 is valid */
     84 #define CISS_METH_FIFO64_RRO	0x10000000 /* 64bit FIFO reverse read order */
     85 #define CISS_METH_SHORT_TAG	0x20000000 /* short 4 byte tag support */
     86 #define CISS_METH_MSIX		0x40000000 /* directed MSI-X support */
     87 #define CISS_METH_FIFO64	0x80000000 /* 64bit FIFO support */
     88 	u_int32_t	amethod;
     89 	u_int32_t	rmethod;
     90 	u_int32_t	paddr_lim;
     91 	u_int32_t	int_delay;
     92 	u_int32_t	int_count;
     93 	u_int32_t	maxcmd;
     94 	u_int32_t	scsibus;
     95 #define	CISS_BUS_U2	0x0001
     96 #define	CISS_BUS_U3	0x0002
     97 #define	CISS_BUS_FC1	0x0100
     98 #define	CISS_BUS_FC2	0x0200
     99 	u_int32_t	troff;
    100 	u_int8_t	hostname[16];
    101 	u_int32_t	heartbeat;
    102 	u_int32_t	driverf;
    103 #define	CISS_DRV_UATT	0x0001
    104 #define	CISS_DRV_QINI	0x0002
    105 #define	CISS_DRV_LCKINT	0x0004
    106 #define	CISS_DRV_QTAGS	0x0008
    107 #define	CISS_DRV_ALPHA	0x0010
    108 #define	CISS_DRV_LUNS	0x0020
    109 #define	CISS_DRV_MSGRQ	0x0080
    110 #define	CISS_DRV_DBRD	0x0100
    111 #define	CISS_DRV_PRF	0x0200
    112 	u_int32_t	maxsg;
    113 /*
    114  * these fields appear in OpenCISS Spec 1.06
    115  * http://cciss.sourceforge.net/#docs
    116  */
    117 	u_int32_t	max_logical_supported;
    118 	u_int32_t	max_physical_supported;
    119 	u_int32_t	max_physical_per_logical;
    120 	u_int32_t	max_perfomant_mode_cmds;
    121 	u_int32_t	max_block_fetch_count;
    122 } __packed;
    123 
    124 /*
    125  * Configuration table for the Performant transport.  Only 4 request queues
    126  * are mentioned in this table, though apparently up to 256 can exist.
    127  */
    128 struct ciss_perf_config {
    129 	uint32_t	fetch_count[8];
    130 #define CISS_SG_FETCH_MAX	0
    131 #define CISS_SG_FETCH_1		1
    132 #define CISS_SG_FETCH_2		2
    133 #define CISS_SG_FETCH_4		3
    134 #define CISS_SG_FETCH_8		4
    135 #define CISS_SG_FETCH_16	5
    136 #define CISS_SG_FETCH_32	6
    137 #define CISS_SG_FETCH_NONE	7
    138 	uint32_t	rq_size;
    139 	uint32_t	rq_count;
    140 	uint32_t	rq_bank_lo;
    141 	uint32_t	rq_bank_hi;
    142 	struct {
    143 		uint32_t	rq_addr_lo;
    144 		uint32_t	rq_addr_hi;
    145 	} __packed rq[4];
    146 } __packed;
    147 #define	CISS_CYCLE_MASK	0x00000001
    148 
    149 struct ciss_inquiry {
    150 	u_int8_t	numld;
    151 	u_int8_t	sign[4];
    152 	u_int8_t	fw_running[4];
    153 	u_int8_t	fw_stored[4];
    154 	u_int8_t	hw_rev;
    155 	u_int8_t	resv0[12];
    156 	u_int16_t	pci_vendor;
    157 	u_int16_t	pci_product;
    158 	u_int8_t	resv1[10];
    159 	u_int8_t	market_rev;
    160 	u_int8_t	flags;
    161 #define	CISS_INQ_WIDE	0x08
    162 #define	CISS_INQ_BIGMAP	0x80
    163 #define	CISS_INQ_BITS	"\020\04WIDE\010BIGMAP"
    164 	u_int8_t	resv2[2];
    165 	u_int8_t	nscsi_bus;
    166 	u_int8_t	resv3[4];
    167 	u_int8_t	clk[4];		/* unaligned dumbness */
    168 	u_int8_t	buswidth;
    169 	u_int8_t	disks[CISS_DRVMAP_SIZE];
    170 	u_int8_t	extdisks[CISS_DRVMAP_SIZE];
    171 	u_int8_t	nondisks[CISS_DRVMAP_SIZE];
    172 } __packed;
    173 
    174 struct ciss_ldmap {
    175 	u_int32_t	size;
    176 	u_int32_t	resv;
    177 	struct {
    178 		u_int32_t tgt;
    179 		u_int32_t tgt2;
    180 	} map[1];
    181 } __packed;
    182 
    183 struct ciss_flush {
    184 	u_int16_t	flush;
    185 #define	CISS_FLUSH_ENABLE	0
    186 #define	CISS_FLUSH_DISABLE	1
    187 	u_int16_t	resv[255];
    188 } __packed;
    189 
    190 struct ciss_blink {
    191 	u_int32_t	duration;	/* x100ms */
    192 	u_int32_t	elapsed;	/* only for sense */
    193 	u_int8_t	pdtab[256];
    194 #define	CISS_BLINK_ALL	1
    195 #define	CISS_BLINK_TIMED 2
    196 	u_int8_t	res[248];
    197 } __packed;
    198 
    199 struct ciss_ldid {
    200 	u_int16_t	blksize;
    201 	u_int16_t	nblocks[2];	/* UNALIGNED! */
    202 	u_int8_t	params[16];
    203 	u_int8_t	type;
    204 #define	CISS_LD_RAID0	0
    205 #define	CISS_LD_RAID4	1
    206 #define	CISS_LD_RAID1	2
    207 #define	CISS_LD_RAID5	3
    208 #define	CISS_LD_RAID51	4
    209 #define	CISS_LD_RAIDADG	5
    210 	u_int8_t	res0;
    211 	u_int8_t	bios_dis;
    212 	u_int8_t	res1;
    213 	u_int32_t	id;
    214 	u_int8_t	label[64];
    215 	u_int64_t	nbigblocks;
    216 	u_int8_t	res2[410];
    217 } __packed;
    218 
    219 struct ciss_ldstat {
    220 	u_int8_t	stat;
    221 #define	CISS_LD_OK	0
    222 #define	CISS_LD_FAILED	1
    223 #define	CISS_LD_UNCONF	2
    224 #define	CISS_LD_DEGRAD	3
    225 #define	CISS_LD_RBLDRD	4	/* ready for rebuild */
    226 #define	CISS_LD_REBLD	5
    227 #define	CISS_LD_PDINV	6	/* wrong phys drive replaced */
    228 #define	CISS_LD_PDUNC	7	/* phys drive is not connected proper */
    229 #define	CISS_LD_EXPND	10	/* expanding */
    230 #define	CISS_LD_NORDY	11	/* volume is not ready */
    231 #define	CISS_LD_QEXPND	12	/* queued for expansion */
    232 	u_int8_t	failed[4];	/* failed map */
    233 	u_int8_t	res0[416];
    234 	u_int8_t	prog[4];	/* blocks left to rebuild/expand */
    235 	u_int8_t	rebuild;	/* drive that is rebuilding */
    236 	u_int16_t	remapcnt[32];	/* count of remapped blocks for pds */
    237 	u_int8_t	replaced[4];	/* replaced drives map */
    238 	u_int8_t	spare[4];	/* used spares map */
    239 	u_int8_t	sparestat;	/* spare status */
    240 #define	CISS_LD_CONF	0x01	/* spare configured */
    241 #define	CISS_LD_RBLD	0x02	/* spare is used and rebuilding */
    242 #define	CISS_LD_DONE	0x04	/* spare rebuild done */
    243 #define	CISS_LD_FAIL	0x08	/* at least one spare drive has failed */
    244 #define	CISS_LD_USED	0x10	/* at least one spare drive is used */
    245 #define	CISS_LD_AVAIL	0x20	/* at least one spare is available */
    246 	u_int8_t	sparemap[32];	/* spare->pd replacement map */
    247 	u_int8_t	replok[4];	/* replaced failed map */
    248 	u_int8_t	readyok;	/* ready to become ok */
    249 	u_int8_t	memfail;	/* cache mem failure */
    250 	u_int8_t	expfail;	/* expansion failure */
    251 	u_int8_t	rebldfail;	/* rebuild failure */
    252 #define	CISS_LD_RBLD_READ	0x01	/* read failed */
    253 #define	CISS_LD_RBLD_WRITE	0x02	/* write fail */
    254 	u_int8_t	bigfailed[16];	/* bigmap vers of same of the above */
    255 	u_int8_t	bigremapcnt[256];
    256 	u_int8_t	bigreplaced[16];
    257 	u_int8_t	bigspare[16];
    258 	u_int8_t	bigsparemap[128];
    259 	u_int8_t	bigreplok[16];
    260 	u_int8_t	bigrebuild;	/* big-number rebuilding driveno */
    261 } __packed;
    262 
    263 struct ciss_pdid {
    264 	u_int8_t	bus;
    265 	u_int8_t	target;
    266 	u_int16_t	blksz;
    267 	u_int32_t	nblocks;
    268 	u_int32_t	resblks;
    269 	u_int8_t	model[40];
    270 	u_int8_t	serial[40];
    271 	u_int8_t	revision[8];
    272 	u_int8_t	bits;
    273 	u_int8_t	res0[2];
    274 	u_int8_t	present;
    275 #define	CISS_PD_PRESENT	0x01
    276 #define	CISS_PD_NONDSK	0x02
    277 #define	CISS_PD_WIDE	0x04
    278 #define	CISS_PD_SYNC	0x08
    279 #define	CISS_PD_NARROW	0x10
    280 #define	CISS_PD_W2NARR	0x20	/* wide downgrade to narrow */
    281 #define	CISS_PD_ULTRA	0x40
    282 #define	CISS_PD_ULTRA2	0x80
    283 	u_int8_t	config;
    284 #define	CISS_PD_SMART	0x01
    285 #define	CISS_PD_SMERRR	0x02
    286 #define	CISS_PD_SMERRE	0x04
    287 #define	CISS_PD_SMERRD	0x08
    288 #define	CISS_PD_EXT	0x10
    289 #define	CISS_PD_CONF	0x20
    290 #define	CISS_PD_SPARE	0x40
    291 #define	CISS_PD_CASAVE	0x80
    292 	u_int8_t	res1;
    293 	u_int8_t	cache;
    294 #define	CISS_PD_CACHE	0x01
    295 #define	CISS_PD_CASAFE	0x01
    296 	u_int8_t	res2[5];
    297 	u_int8_t	connector[2];
    298 	u_int8_t	res3;
    299 	u_int8_t	bay;
    300 	u_int16_t	rpm;
    301 	u_int8_t	type;
    302 	u_int8_t	res4[393];
    303 } __packed;
    304 
    305 struct ciss_event {
    306 	u_int32_t	reltime;	/* time since controller boot */
    307 	u_int16_t	event;
    308 #define	CISS_EVCLS_PROTO	0
    309 #define	CISS_EVCLS_PLUG		1
    310 #define	CISS_EVCLS_HW		2
    311 #define	CISS_EVCLS_ENV		3
    312 #define	CISS_EVCLS_PD		4	/* ciss_evpdchg in details */
    313 #define	CISS_EVCLS_LD		5
    314 #define	CISS_EVCLS_CTRL		6
    315 #define	CISS_EVCLS_CISS		8	/*  funky errors */
    316 #define	CISS_EVCLS_RESV		9
    317 	u_int16_t	subevent;
    318 #define	CISS_EVPROTO_STAT	0
    319 #define	CISS_EVPROTO_ERR	1
    320 #define	CISS_EVPLUG_PDCHG	0	/* ciss_evpdchg */
    321 #define	CISS_EVPLUG_POWER	1	/* ciss_evpschg */
    322 #define	CISS_EVPLUG_FAN		2	/* ciss_evfanchg */
    323 #define	CISS_EVPLUG_UPS		3	/* ciss_evupschg */
    324 #define	CISS_EVPLUG_CTRL	4	/* ciss_evctrlchg: ctrl removed? (; */
    325 #define	CISS_EVHW_CABLES	0
    326 #define	CISS_EVHW_MEMORY	1
    327 #define	CISS_EVHW_FAN		2	/* detail as in CISS_EVPLUG_FAN */
    328 #define	CISS_EVHW_VRM		3
    329 #define	CISS_EVENV_TEMP		0	/* ciss_evtempchg */
    330 #define	CISS_EVENV_PS		1
    331 #define	CISS_EVENV_CHASSIS	2
    332 #define	CISS_EVENV_AC		3
    333 #define	CISS_EVPD_STAT		0
    334 #define	CISS_EVLD_STAT		0
    335 #define	CISS_EVLD_ERR		1
    336 #define	CISS_EVLD_CHECK		2	/* surface check */
    337 #define	CISS_EVCTRL_STAT	0
    338 	u_int16_t	detail;
    339 #define	CISS_EVSTAT_NONE	0
    340 #define	CISS_EVSTAT_DISABLE	1
    341 #define	CISS_EVSTAT_TMO		2	/* async event poll timeout */
    342 #define	CISS_EVERR_OVERFLOW	0	/* event queue overflow */
    343 #define	CISS_EVPLUG_REMOVE	0
    344 #define	CISS_EVPLUG_INSERT	1
    345 #define	CISS_EVFAN_FAULT	0
    346 #define	CISS_EVFAN_DEGRADED	1
    347 #define	CISS_EVFAN_OK		2
    348 #define	CISS_EVVRM_REMOVE	0
    349 #define	CISS_EVVRM_INSERT	1
    350 #define	CISS_EVVRM_FAILED	2
    351 #define	CISS_EVVRM_OK		3
    352 #define	CISS_EVTEMP_LIMEX	0	/* limit exceeded */
    353 #define	CISS_EVTEMP_WARN	1
    354 #define	CISS_EVTEMP_OK		2
    355 #define	CISS_EVPS_FAIL		0
    356 #define	CISS_EVPS_OK		2
    357 #define	CISS_EVCHAS_OPEN	0
    358 #define	CISS_EVCHAS_CLOSE	2
    359 #define	CISS_EVAC_FAIL		0
    360 #define	CISS_EVAC_BATTLOW	1
    361 #define	CISS_EVPDSTAT_FAIL	0
    362 #define	CISS_EVLDSTAT_CHG	0	/* ciss_evldchg */
    363 #define	CISS_EVLDSTAT_EXMEDIA	1	/* untolerant cfg got drive replaced */
    364 #define	CISS_EVLDSTAT_RERDERR	2	/* ciss_evldrblderr */
    365 #define	CISS_EVLDSTAT_REWRERR	3	/* ciss_evldrblderr */
    366 #define	CISS_EVLDERR_FATAL	0	/* ciss_evlderr */
    367 #define	CISS_EVCHECK_DONE	0	/* details have onle 16bit ld num */
    368 #define	CISS_EVCTRLSTAT_CHG	0	/* ciss_evctrlstat */
    369 	u_int8_t	data[64];
    370 	u_int8_t	msg[80];
    371 	u_int32_t	tag;
    372 	u_int16_t	monday;
    373 	u_int16_t	year;
    374 	u_int32_t	time;
    375 	u_int16_t	presec;		/* time for events before boot */
    376 	u_int8_t	device[8];
    377 	u_int8_t	resv[336];
    378 } __packed;
    379 
    380 struct ciss_evpdchg {	/* details pointer */
    381 	u_int16_t	pd;
    382 	u_int8_t	flag;		/* 1 for configured */
    383 	u_int8_t	spare;
    384 	u_int8_t	bigpd;		/* big number of the pd */
    385 	u_int8_t	baynum;
    386 } __packed;
    387 
    388 struct ciss_evpschg {	/* details pointer */
    389 	u_int16_t	port;
    390 	u_int16_t	psid;
    391 	u_int16_t	box;
    392 } __packed;
    393 
    394 struct ciss_evfanchg {	/* details pointer */
    395 	u_int16_t	port;
    396 	u_int16_t	fanid;
    397 	u_int16_t	box;
    398 } __packed;
    399 
    400 struct ciss_evupschg {	/* details pointer */
    401 	u_int16_t	port;
    402 	u_int16_t	upsid;
    403 } __packed;
    404 
    405 struct ciss_evctrlchg {	/* details pointer */
    406 	u_int16_t	slot;
    407 } __packed;
    408 
    409 struct ciss_evtempchg {	/* details pointer */
    410 	u_int16_t	port;
    411 	u_int16_t	sensid;
    412 	u_int16_t	box;
    413 } __packed;
    414 
    415 struct ciss_evldchg {	/* details pointer */
    416 	u_int16_t	ld;
    417 	u_int8_t	prevstat;	/* same as ldstat->state */
    418 	u_int8_t	newstat;	/* same as ldstat->state */
    419 	u_int8_t	sparestat;
    420 } __packed;
    421 
    422 struct ciss_evldrblderr { /* details pointer */
    423 	u_int16_t	ld;
    424 	u_int8_t	replace;
    425 	u_int8_t	errpd;
    426 	u_int8_t	bigreplace;
    427 	u_int8_t	bigerrpd;
    428 } __packed;
    429 
    430 struct ciss_evlderr {	/* details pointer */
    431 	u_int16_t	ld;
    432 	u_int16_t	blkno[2];	/* unaligned; if >2tb see big later */
    433 	u_int16_t	count;
    434 	u_int8_t	ldcmd;
    435 	u_int8_t	bus;
    436 	u_int8_t	target;
    437 	u_int8_t	bigblkno[8];	/* unaligned */
    438 } __packed;
    439 
    440 struct ciss_evctrlstat { /* details pointer */
    441 	u_int8_t	prefctrl;
    442 	u_int8_t	currmode;
    443 	u_int8_t	redctrl;
    444 	u_int8_t	redfail;
    445 	u_int8_t	prevctrl;
    446 	u_int8_t	prevmode;
    447 	u_int8_t	prevred;
    448 	u_int8_t	prevfail;
    449 } __packed;
    450 
    451 struct ciss_sg_entry {
    452 	u_int32_t	addr_lo;
    453 	u_int32_t	addr_hi;
    454 	u_int32_t	len;
    455 	u_int32_t	flags;
    456 #define	CISS_SG_EXT	0x0001
    457 } __packed;
    458 
    459 struct ciss_cmd {
    460 	u_int8_t	resv0;	/* 00 */
    461 	u_int8_t	sgin;	/* 01: #sg in the cmd */
    462 	u_int16_t	sglen;	/* 02: #sg total */
    463 	u_int32_t	id;	/* 04: cmd id << 2 and status bits */
    464 #define	CISS_CMD_ERR	0x02
    465 	u_int32_t	id_hi;	/* 08: not used */
    466 	u_int32_t	tgt;	/* 0c: tgt:bus:mode or lun:mode */
    467 #define	CISS_CMD_MODE_PERIPH	0x00000000
    468 #define	CISS_CMD_MODE_LD	0x40000000
    469 #define	CISS_CMD_TGT_MASK	0x40ffffff
    470 #define	CISS_CMD_BUS_MASK	0x3f000000
    471 #define	CISS_CMD_BUS_SHIFT	24
    472 	u_int32_t	tgt2;	/* 10: scsi-3 address bytes */
    473 
    474 	u_int8_t	cdblen;	/* 14: valid length of cdb */
    475 	u_int8_t	flags;	/* 15 */
    476 #define	CISS_CDB_CMD	0x00
    477 #define	CISS_CDB_MSG	0x01
    478 #define	CISS_CDB_NOTAG	0x00
    479 #define	CISS_CDB_SIMPL	0x20
    480 #define	CISS_CDB_QHEAD	0x28
    481 #define	CISS_CDB_ORDR	0x30
    482 #define	CISS_CDB_AUTO	0x38
    483 #define	CISS_CDB_IN	0x80
    484 #define	CISS_CDB_OUT	0x40
    485 	u_int16_t	tmo;	/* 16: timeout in seconds */
    486 #define	CISS_MAX_CDB	16
    487 	u_int8_t	cdb[16];/* 18 */
    488 
    489 	u_int64_t	err_pa;	/* 28: pa(struct ciss_error *) */
    490 	u_int32_t	err_len;/* 30 */
    491 
    492 	struct ciss_sg_entry sgl[1];		/* 34 */
    493 } __packed;
    494 
    495 struct ciss_error {
    496 	u_int8_t	scsi_stat;	/* SCSI_OK etc */
    497 	u_int8_t	senselen;
    498 	u_int16_t	cmd_stat;
    499 #define	CISS_ERR_OK	0
    500 #define	CISS_ERR_TGTST	1	/* target status */
    501 #define	CISS_ERR_UNRUN	2
    502 #define	CISS_ERR_OVRUN	3
    503 #define	CISS_ERR_INVCMD	4
    504 #define	CISS_ERR_PROTE	5
    505 #define	CISS_ERR_HWERR	6
    506 #define	CISS_ERR_CLOSS	7
    507 #define	CISS_ERR_ABRT	8
    508 #define	CISS_ERR_FABRT	9
    509 #define	CISS_ERR_UABRT	10
    510 #define	CISS_ERR_TMO	11
    511 #define	CISS_ERR_NABRT	12
    512 	u_int32_t	resid;
    513 	u_int8_t	err_type[4];
    514 	u_int32_t	err_info;
    515 	u_int8_t	sense[32];
    516 } __packed;
    517 
    518 struct ciss_ccb {
    519 	TAILQ_ENTRY(ciss_ccb)	ccb_link;
    520 	paddr_t			ccb_cmdpa;
    521 	enum {
    522 		CISS_CCB_FREE	= 0x01,
    523 		CISS_CCB_READY	= 0x02,
    524 		CISS_CCB_ONQ	= 0x04,
    525 		CISS_CCB_PREQ	= 0x08,
    526 		CISS_CCB_POLL	= 0x10,
    527 		CISS_CCB_FAIL	= 0x80
    528 #define	CISS_CCB_BITS	"\020\01FREE\02READY\03ONQ\04PREQ\05POLL\010FAIL"
    529 	} ccb_state;
    530 
    531 	struct scsipi_xfer	*ccb_xs;
    532 	size_t			ccb_len;
    533 	void			*ccb_data;
    534 	bus_dmamap_t		ccb_dmamap;
    535 	uint8_t			ccb_sg_tag;
    536 
    537 	struct ciss_error	ccb_err;
    538 	struct ciss_cmd		ccb_cmd __aligned(16);	/* followed by sgl */
    539 };
    540 CTASSERT((offsetof(struct ciss_ccb, ccb_cmd) & 0xf) == 0);
    541 
    542 typedef TAILQ_HEAD(ciss_queue_head, ciss_ccb)     ciss_queue_head;
    543 
    544