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isp.c revision 1.43
      1 /* $NetBSD: isp.c,v 1.43 1999/12/04 03:08:18 mjacob Exp $ */
      2 /*
      3  * Copyright (C) 1997, 1998, 1999 National Aeronautics & Space Administration
      4  * All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  * 3. The name of the author may not be used to endorse or promote products
     15  *    derived from this software without specific prior written permission
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 /*
     30  * Machine and OS Independent (well, as best as possible)
     31  * code for the Qlogic ISP SCSI adapters.
     32  * Matthew Jacob <mjacob (at) nas.nasa.gov>
     33  */
     34 
     35 /*
     36  * Inspiration and ideas about this driver are from Erik Moe's Linux driver
     37  * (qlogicisp.c) and Dave Miller's SBus version of same (qlogicisp.c). Some
     38  * ideas dredged from the Solaris driver.
     39  */
     40 
     41 /*
     42  * Include header file appropriate for platform we're building on.
     43  */
     44 
     45 #ifdef	__NetBSD__
     46 #include <dev/ic/isp_netbsd.h>
     47 #endif
     48 #ifdef	__FreeBSD__
     49 #include <dev/isp/isp_freebsd.h>
     50 #endif
     51 #ifdef	__OpenBSD__
     52 #include <dev/ic/isp_openbsd.h>
     53 #endif
     54 #ifdef	__linux__
     55 #include "isp_linux.h"
     56 #endif
     57 
     58 /*
     59  * General defines
     60  */
     61 
     62 #define	MBOX_DELAY_COUNT	1000000 / 100
     63 
     64 /*
     65  * Local static data
     66  */
     67 
     68 /*
     69  * Local function prototypes.
     70  */
     71 static int isp_parse_async __P((struct ispsoftc *, int));
     72 static int isp_handle_other_response
     73 __P((struct ispsoftc *, ispstatusreq_t *, u_int16_t *));
     74 static void isp_parse_status
     75 __P((struct ispsoftc *, ispstatusreq_t *, ISP_SCSI_XFER_T *));
     76 static void isp_fastpost_complete __P((struct ispsoftc *, u_int32_t));
     77 static void isp_scsi_init __P((struct ispsoftc *));
     78 static void isp_scsi_channel_init __P((struct ispsoftc *, int));
     79 static void isp_fibre_init __P((struct ispsoftc *));
     80 static void isp_mark_getpdb_all __P((struct ispsoftc *));
     81 static int isp_getpdb __P((struct ispsoftc *, int, isp_pdb_t *));
     82 static u_int64_t isp_get_portname __P((struct ispsoftc *, int, int));
     83 static int isp_fclink_test __P((struct ispsoftc *, int));
     84 static int isp_same_lportdb __P((struct lportdb *, struct lportdb *));
     85 static int isp_pdb_sync __P((struct ispsoftc *, int));
     86 #ifdef	ISP2100_FABRIC
     87 static int isp_scan_fabric __P((struct ispsoftc *));
     88 #endif
     89 static void isp_fw_state __P((struct ispsoftc *));
     90 static void isp_dumpregs __P((struct ispsoftc *, const char *));
     91 static void isp_mboxcmd __P((struct ispsoftc *, mbreg_t *));
     92 
     93 static void isp_update __P((struct ispsoftc *));
     94 static void isp_update_bus __P((struct ispsoftc *, int));
     95 static void isp_setdfltparm __P((struct ispsoftc *, int));
     96 static int isp_read_nvram __P((struct ispsoftc *));
     97 static void isp_rdnvram_word __P((struct ispsoftc *, int, u_int16_t *));
     98 
     99 /*
    100  * Reset Hardware.
    101  *
    102  * Hit the chip over the head, download new f/w if available and set it running.
    103  *
    104  * Locking done elsewhere.
    105  */
    106 void
    107 isp_reset(isp)
    108 	struct ispsoftc *isp;
    109 {
    110 	mbreg_t mbs;
    111 	int loops, i, dodnld = 1;
    112 	char *revname;
    113 
    114 	isp->isp_state = ISP_NILSTATE;
    115 
    116 	/*
    117 	 * Basic types (SCSI, FibreChannel and PCI or SBus)
    118 	 * have been set in the MD code. We figure out more
    119 	 * here.
    120 	 */
    121 	isp->isp_dblev = DFLT_DBLEVEL;
    122 
    123 	/*
    124 	 * After we've fired this chip up, zero out the conf1 register
    125 	 * for SCSI adapters and other settings for the 2100.
    126 	 */
    127 
    128 	/*
    129 	 * Get the current running firmware revision out of the
    130 	 * chip before we hit it over the head (if this is our
    131 	 * first time through). Note that we store this as the
    132 	 * 'ROM' firmware revision- which it may not be. In any
    133 	 * case, we don't really use this yet, but we may in
    134 	 * the future.
    135 	 */
    136 	if (isp->isp_touched == 0) {
    137 		/*
    138 		 * Just in case it was paused...
    139 		 */
    140 		ISP_WRITE(isp, HCCR, HCCR_CMD_RELEASE);
    141 		mbs.param[0] = MBOX_ABOUT_FIRMWARE;
    142 		isp_mboxcmd(isp, &mbs);
    143 		/*
    144 		 * If this fails, it probably means we're running
    145 		 * an old prom, if anything at all...
    146 		 */
    147 		if (mbs.param[0] == MBOX_COMMAND_COMPLETE) {
    148 			isp->isp_romfw_rev[0] = mbs.param[1];
    149 			isp->isp_romfw_rev[1] = mbs.param[2];
    150 			isp->isp_romfw_rev[2] = mbs.param[3];
    151 		}
    152 		isp->isp_touched = 1;
    153 	}
    154 
    155 	DISABLE_INTS(isp);
    156 
    157 	/*
    158 	 * Put the board into PAUSE mode.
    159 	 */
    160 	ISP_WRITE(isp, HCCR, HCCR_CMD_PAUSE);
    161 
    162 	if (IS_FC(isp)) {
    163 		revname = "2X00";
    164 		switch (isp->isp_type) {
    165 		case ISP_HA_FC_2100:
    166 			revname[1] = '1';
    167 			break;
    168 		case ISP_HA_FC_2200:
    169 			revname[1] = '2';
    170 			break;
    171 		default:
    172 			break;
    173 		}
    174 	} else if (IS_12X0(isp)) {
    175 		revname = "12X0";
    176 		isp->isp_clock = 60;
    177 	} else if (IS_1080(isp)) {
    178 		u_int16_t l;
    179 		sdparam *sdp = isp->isp_param;
    180 		revname = "1080";
    181 		isp->isp_clock = 100;
    182 		l = ISP_READ(isp, SXP_PINS_DIFF) & ISP1080_MODE_MASK;
    183 		switch (l) {
    184 		case ISP1080_LVD_MODE:
    185 			sdp->isp_lvdmode = 1;
    186 			PRINTF("%s: LVD Mode\n", isp->isp_name);
    187 			break;
    188 		case ISP1080_HVD_MODE:
    189 			sdp->isp_diffmode = 1;
    190 			CFGPRINTF("%s: Differential Mode\n", isp->isp_name);
    191 			break;
    192 		case ISP1080_SE_MODE:
    193 			sdp->isp_ultramode = 1;
    194 			CFGPRINTF("%s: Single-Ended Mode\n", isp->isp_name);
    195 			break;
    196 		default:
    197 			/*
    198 			 * Hmm. Up in a wierd mode. This means all SCSI I/O
    199 			 * buffer lines are tristated, so we're in a lot of
    200 			 * trouble if we don't set things up right.
    201 			 */
    202 			PRINTF("%s: Illegal Mode 0x%x\n", isp->isp_name, l);
    203 			break;
    204 		}
    205 	} else {
    206 		sdparam *sdp = isp->isp_param;
    207 		i = ISP_READ(isp, BIU_CONF0) & BIU_CONF0_HW_MASK;
    208 		switch (i) {
    209 		default:
    210 			PRINTF("%s: unknown chip rev. 0x%x- assuming a 1020\n",
    211 			    isp->isp_name, i);
    212 			/* FALLTHROUGH */
    213 		case 1:
    214 			revname = "1020";
    215 			isp->isp_type = ISP_HA_SCSI_1020;
    216 			isp->isp_clock = 40;
    217 			break;
    218 		case 2:
    219 			/*
    220 			 * Some 1020A chips are Ultra Capable, but don't
    221 			 * run the clock rate up for that unless told to
    222 			 * do so by the Ultra Capable bits being set.
    223 			 */
    224 			revname = "1020A";
    225 			isp->isp_type = ISP_HA_SCSI_1020A;
    226 			isp->isp_clock = 40;
    227 			break;
    228 		case 3:
    229 			revname = "1040";
    230 			isp->isp_type = ISP_HA_SCSI_1040;
    231 			isp->isp_clock = 60;
    232 			break;
    233 		case 4:
    234 			revname = "1040A";
    235 			isp->isp_type = ISP_HA_SCSI_1040A;
    236 			isp->isp_clock = 60;
    237 			break;
    238 		case 5:
    239 			revname = "1040B";
    240 			isp->isp_type = ISP_HA_SCSI_1040B;
    241 			isp->isp_clock = 60;
    242 			break;
    243 		case 6:
    244 			revname = "1040C(?)";
    245 			isp->isp_type = ISP_HA_SCSI_1040C;
    246 			isp->isp_clock = 60;
    247                         break;
    248 		}
    249 		/*
    250 		 * Now, while we're at it, gather info about ultra
    251 		 * and/or differential mode.
    252 		 */
    253 		if (ISP_READ(isp, SXP_PINS_DIFF) & SXP_PINS_DIFF_MODE) {
    254 			CFGPRINTF("%s: Differential Mode\n", isp->isp_name);
    255 			sdp->isp_diffmode = 1;
    256 		} else {
    257 			sdp->isp_diffmode = 0;
    258 		}
    259 		i = ISP_READ(isp, RISC_PSR);
    260 		if (isp->isp_bustype == ISP_BT_SBUS) {
    261 			i &= RISC_PSR_SBUS_ULTRA;
    262 		} else {
    263 			i &= RISC_PSR_PCI_ULTRA;
    264 		}
    265 		if (i != 0) {
    266 			CFGPRINTF("%s: Ultra Mode Capable\n", isp->isp_name);
    267 			sdp->isp_ultramode = 1;
    268 			/*
    269 			 * If we're in Ultra Mode, we have to be 60Mhz clock-
    270 			 * even for the SBus version.
    271 			 */
    272 			isp->isp_clock = 60;
    273 		} else {
    274 			sdp->isp_ultramode = 0;
    275 			/*
    276 			 * Clock is known. Gronk.
    277 			 */
    278 		}
    279 
    280 		/*
    281 		 * Machine dependent clock (if set) overrides
    282 		 * our generic determinations.
    283 		 */
    284 		if (isp->isp_mdvec->dv_clock) {
    285 			if (isp->isp_mdvec->dv_clock < isp->isp_clock) {
    286 				isp->isp_clock = isp->isp_mdvec->dv_clock;
    287 			}
    288 		}
    289 
    290 	}
    291 
    292 	/*
    293 	 * Do MD specific pre initialization
    294 	 */
    295 	ISP_RESET0(isp);
    296 
    297 again:
    298 
    299 	/*
    300 	 * Hit the chip over the head with hammer,
    301 	 * and give the ISP a chance to recover.
    302 	 */
    303 
    304 	if (IS_SCSI(isp)) {
    305 		ISP_WRITE(isp, BIU_ICR, BIU_ICR_SOFT_RESET);
    306 		/*
    307 		 * A slight delay...
    308 		 */
    309 		SYS_DELAY(100);
    310 
    311 #if	0
    312 		PRINTF("%s: mbox0-5: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n",
    313 		    isp->isp_name, ISP_READ(isp, OUTMAILBOX0),
    314 		    ISP_READ(isp, OUTMAILBOX1), ISP_READ(isp, OUTMAILBOX2),
    315 		    ISP_READ(isp, OUTMAILBOX3), ISP_READ(isp, OUTMAILBOX4),
    316 		    ISP_READ(isp, OUTMAILBOX5));
    317 #endif
    318 
    319 		/*
    320 		 * Clear data && control DMA engines.
    321 		 */
    322 		ISP_WRITE(isp, CDMA_CONTROL,
    323 		    DMA_CNTRL_CLEAR_CHAN | DMA_CNTRL_RESET_INT);
    324 		ISP_WRITE(isp, DDMA_CONTROL,
    325 		    DMA_CNTRL_CLEAR_CHAN | DMA_CNTRL_RESET_INT);
    326 
    327 
    328 	} else {
    329 		ISP_WRITE(isp, BIU2100_CSR, BIU2100_SOFT_RESET);
    330 		/*
    331 		 * A slight delay...
    332 		 */
    333 		SYS_DELAY(100);
    334 
    335 		/*
    336 		 * Clear data && control DMA engines.
    337 		 */
    338 		ISP_WRITE(isp, CDMA2100_CONTROL,
    339 			DMA_CNTRL2100_CLEAR_CHAN | DMA_CNTRL2100_RESET_INT);
    340 		ISP_WRITE(isp, TDMA2100_CONTROL,
    341 			DMA_CNTRL2100_CLEAR_CHAN | DMA_CNTRL2100_RESET_INT);
    342 		ISP_WRITE(isp, RDMA2100_CONTROL,
    343 			DMA_CNTRL2100_CLEAR_CHAN | DMA_CNTRL2100_RESET_INT);
    344 	}
    345 
    346 	/*
    347 	 * Wait for ISP to be ready to go...
    348 	 */
    349 	loops = MBOX_DELAY_COUNT;
    350 	for (;;) {
    351 		if (IS_SCSI(isp)) {
    352 			if (!(ISP_READ(isp, BIU_ICR) & BIU_ICR_SOFT_RESET))
    353 				break;
    354 		} else {
    355 			if (!(ISP_READ(isp, BIU2100_CSR) & BIU2100_SOFT_RESET))
    356 				break;
    357 		}
    358 		SYS_DELAY(100);
    359 		if (--loops < 0) {
    360 			isp_dumpregs(isp, "chip reset timed out");
    361 			return;
    362 		}
    363 	}
    364 
    365 	/*
    366 	 * After we've fired this chip up, zero out the conf1 register
    367 	 * for SCSI adapters and other settings for the 2100.
    368 	 */
    369 
    370 	if (IS_SCSI(isp)) {
    371 		ISP_WRITE(isp, BIU_CONF1, 0);
    372 	} else {
    373 		ISP_WRITE(isp, BIU2100_CSR, 0);
    374 	}
    375 
    376 	/*
    377 	 * Reset RISC Processor
    378 	 */
    379 	ISP_WRITE(isp, HCCR, HCCR_CMD_RESET);
    380 	SYS_DELAY(100);
    381 
    382 	/*
    383 	 * Establish some initial burst rate stuff.
    384 	 * (only for the 1XX0 boards). This really should
    385 	 * be done later after fetching from NVRAM.
    386 	 */
    387 	if (IS_SCSI(isp)) {
    388 		u_int16_t tmp = isp->isp_mdvec->dv_conf1;
    389 		/*
    390 		 * Busted FIFO. Turn off all but burst enables.
    391 		 */
    392 		if (isp->isp_type == ISP_HA_SCSI_1040A) {
    393 			tmp &= BIU_BURST_ENABLE;
    394 		}
    395 		ISP_SETBITS(isp, BIU_CONF1, tmp);
    396 		if (tmp & BIU_BURST_ENABLE) {
    397 			ISP_SETBITS(isp, CDMA_CONF, DMA_ENABLE_BURST);
    398 			ISP_SETBITS(isp, DDMA_CONF, DMA_ENABLE_BURST);
    399 		}
    400 #ifdef	PTI_CARDS
    401 		if (((sdparam *) isp->isp_param)->isp_ultramode) {
    402 			while (ISP_READ(isp, RISC_MTR) != 0x1313) {
    403 				ISP_WRITE(isp, RISC_MTR, 0x1313);
    404 				ISP_WRITE(isp, HCCR, HCCR_CMD_STEP);
    405 			}
    406 		} else {
    407 			ISP_WRITE(isp, RISC_MTR, 0x1212);
    408 		}
    409 		/*
    410 		 * PTI specific register
    411 		 */
    412 		ISP_WRITE(isp, RISC_EMB, DUAL_BANK)
    413 #else
    414 		ISP_WRITE(isp, RISC_MTR, 0x1212);
    415 #endif
    416 	} else {
    417 		ISP_WRITE(isp, RISC_MTR2100, 0x1212);
    418 	}
    419 
    420 	ISP_WRITE(isp, HCCR, HCCR_CMD_RELEASE); /* release paused processor */
    421 
    422 	/*
    423 	 * Do MD specific post initialization
    424 	 */
    425 	ISP_RESET1(isp);
    426 
    427 	/*
    428 	 * Wait for everything to finish firing up...
    429 	 */
    430 	loops = MBOX_DELAY_COUNT;
    431 	while (ISP_READ(isp, OUTMAILBOX0) == MBOX_BUSY) {
    432 		SYS_DELAY(100);
    433 		if (--loops < 0) {
    434 			PRINTF("%s: MBOX_BUSY never cleared on reset\n",
    435 			    isp->isp_name);
    436 			return;
    437 		}
    438 	}
    439 
    440 	/*
    441 	 * Up until this point we've done everything by just reading or
    442 	 * setting registers. From this point on we rely on at least *some*
    443 	 * kind of firmware running in the card.
    444 	 */
    445 
    446 	/*
    447 	 * Do some sanity checking.
    448 	 */
    449 	mbs.param[0] = MBOX_NO_OP;
    450 	isp_mboxcmd(isp, &mbs);
    451 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    452 		isp_dumpregs(isp, "NOP test failed");
    453 		return;
    454 	}
    455 
    456 	if (IS_SCSI(isp)) {
    457 		mbs.param[0] = MBOX_MAILBOX_REG_TEST;
    458 		mbs.param[1] = 0xdead;
    459 		mbs.param[2] = 0xbeef;
    460 		mbs.param[3] = 0xffff;
    461 		mbs.param[4] = 0x1111;
    462 		mbs.param[5] = 0xa5a5;
    463 		isp_mboxcmd(isp, &mbs);
    464 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    465 			isp_dumpregs(isp,
    466 				"Mailbox Register test didn't complete");
    467 			return;
    468 		}
    469 		if (mbs.param[1] != 0xdead || mbs.param[2] != 0xbeef ||
    470 		    mbs.param[3] != 0xffff || mbs.param[4] != 0x1111 ||
    471 		    mbs.param[5] != 0xa5a5) {
    472 			isp_dumpregs(isp, "Register Test Failed");
    473 			return;
    474 		}
    475 
    476 	}
    477 
    478 	/*
    479 	 * Download new Firmware, unless requested not to do so.
    480 	 * This is made slightly trickier in some cases where the
    481 	 * firmware of the ROM revision is newer than the revision
    482 	 * compiled into the driver. So, where we used to compare
    483 	 * versions of our f/w and the ROM f/w, now we just see
    484 	 * whether we have f/w at all and whether a config flag
    485 	 * has disabled our download.
    486 	 */
    487 	if ((isp->isp_mdvec->dv_ispfw == NULL) ||
    488 	    (isp->isp_confopts & ISP_CFG_NORELOAD)) {
    489 		dodnld = 0;
    490 	}
    491 
    492 	if (dodnld) {
    493 		u_int16_t fwlen  = isp->isp_mdvec->dv_fwlen;
    494 		if (fwlen == 0)
    495 			fwlen = isp->isp_mdvec->dv_ispfw[3]; /* usually here */
    496 		for (i = 0; i < fwlen; i++) {
    497 			mbs.param[0] = MBOX_WRITE_RAM_WORD;
    498 			mbs.param[1] = isp->isp_mdvec->dv_codeorg + i;
    499 			mbs.param[2] = isp->isp_mdvec->dv_ispfw[i];
    500 			isp_mboxcmd(isp, &mbs);
    501 			if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    502 				PRINTF("%s: F/W download failed at word %d\n",
    503 				    isp->isp_name, i);
    504 				dodnld = 0;
    505 				goto again;
    506 			}
    507 		}
    508 
    509 		/*
    510 		 * Verify that it downloaded correctly.
    511 		 */
    512 		mbs.param[0] = MBOX_VERIFY_CHECKSUM;
    513 		mbs.param[1] = isp->isp_mdvec->dv_codeorg;
    514 		isp_mboxcmd(isp, &mbs);
    515 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    516 			isp_dumpregs(isp, "ram checksum failure");
    517 			return;
    518 		}
    519 	} else {
    520 		IDPRINTF(3, ("%s: skipping f/w download\n", isp->isp_name));
    521 	}
    522 
    523 	/*
    524 	 * Now start it rolling.
    525 	 *
    526 	 * If we didn't actually download f/w,
    527 	 * we still need to (re)start it.
    528 	 */
    529 
    530 	mbs.param[0] = MBOX_EXEC_FIRMWARE;
    531 	if (isp->isp_mdvec->dv_codeorg)
    532 		mbs.param[1] = isp->isp_mdvec->dv_codeorg;
    533 	else
    534 		mbs.param[1] = 0x1000;
    535 	isp_mboxcmd(isp, &mbs);
    536 
    537 	if (IS_SCSI(isp)) {
    538 		/*
    539 		 * Set CLOCK RATE, but only if asked to.
    540 		 */
    541 		if (isp->isp_clock) {
    542 			mbs.param[0] = MBOX_SET_CLOCK_RATE;
    543 			mbs.param[1] = isp->isp_clock;
    544 			isp_mboxcmd(isp, &mbs);
    545 			if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    546 				PRINTF("failed to set clockrate (0x%x)\n",
    547 				    mbs.param[0]);
    548 				/* but continue */
    549 			}
    550 		}
    551 	}
    552 	mbs.param[0] = MBOX_ABOUT_FIRMWARE;
    553 	isp_mboxcmd(isp, &mbs);
    554 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    555 		PRINTF("could not get f/w started (0x%x)\n", mbs.param[0]);
    556 		return;
    557 	}
    558 	CFGPRINTF("%s: Board Revision %s, %s F/W Revision %d.%d.%d\n",
    559 	    isp->isp_name, revname, dodnld? "loaded" : "resident",
    560 	    mbs.param[1], mbs.param[2], mbs.param[3]);
    561 	if (IS_FC(isp)) {
    562 		if (ISP_READ(isp, BIU2100_CSR) & BIU2100_PCI64) {
    563 			CFGPRINTF("%s: in 64-Bit PCI slot\n", isp->isp_name);
    564 		}
    565 	}
    566 
    567 	isp->isp_fwrev[0] = mbs.param[1];
    568 	isp->isp_fwrev[1] = mbs.param[2];
    569 	isp->isp_fwrev[2] = mbs.param[3];
    570 	if (isp->isp_romfw_rev[0] || isp->isp_romfw_rev[1] ||
    571 	    isp->isp_romfw_rev[2]) {
    572 		CFGPRINTF("%s: Last F/W revision was %d.%d.%d\n", isp->isp_name,
    573 		    isp->isp_romfw_rev[0], isp->isp_romfw_rev[1],
    574 		    isp->isp_romfw_rev[2]);
    575 	}
    576 
    577 	mbs.param[0] = MBOX_GET_FIRMWARE_STATUS;
    578 	isp_mboxcmd(isp, &mbs);
    579 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    580 		PRINTF("%s: could not GET FIRMWARE STATUS\n", isp->isp_name);
    581 		return;
    582 	}
    583 	isp->isp_maxcmds = mbs.param[2];
    584 	CFGPRINTF("%s: %d max I/O commands supported\n",
    585 	    isp->isp_name, mbs.param[2]);
    586 	isp_fw_state(isp);
    587 
    588 	/*
    589 	 * Set up DMA for the request and result mailboxes.
    590 	 */
    591 	if (ISP_MBOXDMASETUP(isp) != 0) {
    592 		PRINTF("%s: can't setup dma mailboxes\n", isp->isp_name);
    593 		return;
    594 	}
    595 	isp->isp_state = ISP_RESETSTATE;
    596 }
    597 
    598 /*
    599  * Initialize Parameters of Hardware to a known state.
    600  *
    601  * Locks are held before coming here.
    602  */
    603 
    604 void
    605 isp_init(isp)
    606 	struct ispsoftc *isp;
    607 {
    608 	/*
    609 	 * Must do this first to get defaults established.
    610 	 */
    611 	isp_setdfltparm(isp, 0);
    612 	if (IS_12X0(isp)) {
    613 		isp_setdfltparm(isp, 1);
    614 	}
    615 
    616 	if (IS_FC(isp)) {
    617 		isp_fibre_init(isp);
    618 	} else {
    619 		isp_scsi_init(isp);
    620 	}
    621 }
    622 
    623 static void
    624 isp_scsi_init(isp)
    625 	struct ispsoftc *isp;
    626 {
    627 	sdparam *sdp_chan0, *sdp_chan1;
    628 	mbreg_t mbs;
    629 
    630 	sdp_chan0 = isp->isp_param;
    631 	sdp_chan1 = sdp_chan0;
    632 	if (IS_12X0(isp)) {
    633 		sdp_chan1++;
    634 	}
    635 
    636 	/* First do overall per-card settings. */
    637 
    638 	/*
    639 	 * If we have fast memory timing enabled, turn it on.
    640 	 */
    641 	if (isp->isp_fast_mttr) {
    642 		ISP_WRITE(isp, RISC_MTR, 0x1313);
    643 	}
    644 
    645 	/*
    646 	 * Set Retry Delay and Count.
    647 	 * You set both channels at the same time.
    648 	 */
    649 	mbs.param[0] = MBOX_SET_RETRY_COUNT;
    650 	mbs.param[1] = sdp_chan0->isp_retry_count;
    651 	mbs.param[2] = sdp_chan0->isp_retry_delay;
    652 	mbs.param[6] = sdp_chan1->isp_retry_count;
    653 	mbs.param[7] = sdp_chan1->isp_retry_delay;
    654 
    655 	isp_mboxcmd(isp, &mbs);
    656 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    657 		PRINTF("%s: failed to set retry count and retry delay\n",
    658 		    isp->isp_name);
    659 		return;
    660 	}
    661 
    662 	/*
    663 	 * Set ASYNC DATA SETUP time. This is very important.
    664 	 */
    665 	mbs.param[0] = MBOX_SET_ASYNC_DATA_SETUP_TIME;
    666 	mbs.param[1] = sdp_chan0->isp_async_data_setup;
    667 	mbs.param[2] = sdp_chan1->isp_async_data_setup;
    668 	isp_mboxcmd(isp, &mbs);
    669 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    670 		PRINTF("%s: failed to set asynchronous data setup time\n",
    671 		    isp->isp_name);
    672 		return;
    673 	}
    674 
    675 	/*
    676 	 * Set ACTIVE Negation State.
    677 	 */
    678 	mbs.param[0] = MBOX_SET_ACT_NEG_STATE;
    679 	mbs.param[1] =
    680 	    (sdp_chan0->isp_req_ack_active_neg << 4) |
    681 	    (sdp_chan0->isp_data_line_active_neg << 5);
    682 	mbs.param[2] =
    683 	    (sdp_chan1->isp_req_ack_active_neg << 4) |
    684 	    (sdp_chan1->isp_data_line_active_neg << 5);
    685 
    686 	isp_mboxcmd(isp, &mbs);
    687 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    688 		PRINTF("%s: failed to set active negation state "
    689 		    "(%d,%d),(%d,%d)\n", isp->isp_name,
    690 		    sdp_chan0->isp_req_ack_active_neg,
    691 		    sdp_chan0->isp_data_line_active_neg,
    692 		    sdp_chan1->isp_req_ack_active_neg,
    693 		    sdp_chan1->isp_data_line_active_neg);
    694 		/*
    695 		 * But don't return.
    696 		 */
    697 	}
    698 
    699 	/*
    700 	 * Set the Tag Aging limit
    701 	 */
    702 	mbs.param[0] = MBOX_SET_TAG_AGE_LIMIT;
    703 	mbs.param[1] = sdp_chan0->isp_tag_aging;
    704 	mbs.param[2] = sdp_chan1->isp_tag_aging;
    705 	isp_mboxcmd(isp, &mbs);
    706 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    707 		PRINTF("%s: failed to set tag age limit (%d,%d)\n",
    708 		    isp->isp_name, sdp_chan0->isp_tag_aging,
    709 		    sdp_chan1->isp_tag_aging);
    710 		return;
    711 	}
    712 
    713 	/*
    714 	 * Set selection timeout.
    715 	 */
    716 	mbs.param[0] = MBOX_SET_SELECT_TIMEOUT;
    717 	mbs.param[1] = sdp_chan0->isp_selection_timeout;
    718 	mbs.param[2] = sdp_chan1->isp_selection_timeout;
    719 	isp_mboxcmd(isp, &mbs);
    720 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    721 		PRINTF("%s: failed to set selection timeout\n", isp->isp_name);
    722 		return;
    723 	}
    724 
    725 	/* now do per-channel settings */
    726 	isp_scsi_channel_init(isp, 0);
    727 	if (IS_12X0(isp))
    728 		isp_scsi_channel_init(isp, 1);
    729 
    730 	/*
    731 	 * Now enable request/response queues
    732 	 */
    733 
    734 	mbs.param[0] = MBOX_INIT_RES_QUEUE;
    735 	mbs.param[1] = RESULT_QUEUE_LEN;
    736 	mbs.param[2] = DMA_MSW(isp->isp_result_dma);
    737 	mbs.param[3] = DMA_LSW(isp->isp_result_dma);
    738 	mbs.param[4] = 0;
    739 	mbs.param[5] = 0;
    740 	isp_mboxcmd(isp, &mbs);
    741 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    742 		PRINTF("%s: set of response queue failed\n", isp->isp_name);
    743 		return;
    744 	}
    745 	isp->isp_residx = 0;
    746 
    747 	mbs.param[0] = MBOX_INIT_REQ_QUEUE;
    748 	mbs.param[1] = RQUEST_QUEUE_LEN;
    749 	mbs.param[2] = DMA_MSW(isp->isp_rquest_dma);
    750 	mbs.param[3] = DMA_LSW(isp->isp_rquest_dma);
    751 	mbs.param[4] = 0;
    752 	mbs.param[5] = 0;
    753 	isp_mboxcmd(isp, &mbs);
    754 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    755 		PRINTF("%s: set of request queue failed\n", isp->isp_name);
    756 		return;
    757 	}
    758 	isp->isp_reqidx = isp->isp_reqodx = 0;
    759 
    760 	/*
    761 	 *  Turn on Fast Posting, LVD transitions
    762 	 */
    763 
    764 	if (IS_1080(isp) ||
    765 	    ISP_FW_REVX(isp->isp_fwrev) >= ISP_FW_REV(7, 55, 0)) {
    766 		mbs.param[0] = MBOX_SET_FW_FEATURES;
    767 #ifndef	ISP_NO_FASTPOST_SCSI
    768 		mbs.param[1] |= FW_FEATURE_FAST_POST;
    769 #else
    770 		mbs.param[1] = 0;
    771 #endif
    772 		if (IS_1080(isp))
    773 			mbs.param[1] |= FW_FEATURE_LVD_NOTIFY;
    774 		if (mbs.param[1] != 0) {
    775 			isp_mboxcmd(isp, &mbs);
    776 			if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    777 				PRINTF("%s: unable enable FW features\n",
    778 				    isp->isp_name);
    779 			}
    780 		}
    781 	}
    782 
    783 	/*
    784 	 * Let the outer layers decide whether to issue a SCSI bus reset.
    785 	 */
    786 	isp->isp_state = ISP_INITSTATE;
    787 }
    788 
    789 static void
    790 isp_scsi_channel_init(isp, channel)
    791 	struct ispsoftc *isp;
    792 	int channel;
    793 {
    794 	sdparam *sdp;
    795 	mbreg_t mbs;
    796 	int tgt;
    797 
    798 	sdp = isp->isp_param;
    799 	sdp += channel;
    800 
    801 	/*
    802 	 * Set (possibly new) Initiator ID.
    803 	 */
    804 	mbs.param[0] = MBOX_SET_INIT_SCSI_ID;
    805 	mbs.param[1] = (channel << 7) | sdp->isp_initiator_id;
    806 	isp_mboxcmd(isp, &mbs);
    807 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    808 		PRINTF("%s: cannot set initiator id on bus %d to %d\n",
    809 		    isp->isp_name, channel, sdp->isp_initiator_id);
    810 		return;
    811 	}
    812 
    813 	/*
    814 	 * Set current per-target parameters to a safe minimum.
    815 	 */
    816 	for (tgt = 0; tgt < MAX_TARGETS; tgt++) {
    817 		int maxlun, lun;
    818 		u_int16_t sdf;
    819 
    820 		if (sdp->isp_devparam[tgt].dev_enable == 0) {
    821 			IDPRINTF(1, ("%s: skipping target %d bus %d settings\n",
    822 			    isp->isp_name, tgt, channel));
    823 			continue;
    824 		}
    825 
    826 		/*
    827 		 * If we're in LVD mode, then we pretty much should
    828 		 * only disable tagged queuing.
    829 		 */
    830 		if (IS_1080(isp) && sdp->isp_lvdmode) {
    831 			sdf = DPARM_DEFAULT & ~DPARM_TQING;
    832 		} else {
    833 			sdf = DPARM_SAFE_DFLT;
    834 			/*
    835 			 * It is not quite clear when this changed over so that
    836 			 * we could force narrow and async, so assume >= 7.55.
    837 			 */
    838 			if (ISP_FW_REVX(isp->isp_fwrev) >=
    839 			    ISP_FW_REV(7, 55, 0)) {
    840 				sdf |= DPARM_NARROW | DPARM_ASYNC;
    841 			}
    842 		}
    843 		mbs.param[0] = MBOX_SET_TARGET_PARAMS;
    844 		mbs.param[1] = (tgt << 8) | (channel << 15);
    845 		mbs.param[2] = sdf;
    846 		mbs.param[3] =
    847 		    (sdp->isp_devparam[tgt].sync_offset << 8) |
    848 		    (sdp->isp_devparam[tgt].sync_period);
    849 		isp_mboxcmd(isp, &mbs);
    850 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    851 			sdf = DPARM_SAFE_DFLT;
    852 			mbs.param[0] = MBOX_SET_TARGET_PARAMS;
    853 			mbs.param[1] = (tgt << 8) | (channel << 15);
    854 			mbs.param[2] = sdf;
    855 			mbs.param[3] =
    856 			    (sdp->isp_devparam[tgt].sync_offset << 8) |
    857 			    (sdp->isp_devparam[tgt].sync_period);
    858 			isp_mboxcmd(isp, &mbs);
    859 			if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    860 				PRINTF("%s: failed even to set defaults for "
    861 				    "target %d\n", isp->isp_name, tgt);
    862 				continue;
    863 			}
    864 		}
    865 
    866 #if	0
    867 		/*
    868 		 * We don't update dev_flags with what we've set
    869 		 * because that's not the ultimate goal setting.
    870 		 * If we succeed with the command, we *do* update
    871 		 * cur_dflags by getting target parameters.
    872 		 */
    873 		mbs.param[0] = MBOX_GET_TARGET_PARAMS;
    874 		mbs.param[1] = (tgt << 8) | (channel << 15);
    875 		isp_mboxcmd(isp, &mbs);
    876 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    877 			/*
    878 			 * Urrr.... We'll set cur_dflags to DPARM_SAFE_DFLT so
    879 			 * we don't try and do tags if tags aren't enabled.
    880 			 */
    881 			sdp->isp_devparam[tgt].cur_dflags = DPARM_SAFE_DFLT;
    882 		} else {
    883 			sdp->isp_devparam[tgt].cur_dflags = mbs.param[2];
    884 			sdp->isp_devparam[tgt].cur_offset = mbs.param[3] >> 8;
    885 			sdp->isp_devparam[tgt].cur_period = mbs.param[3] & 0xff;
    886 		}
    887 		IDPRINTF(3, ("%s: set flags 0x%x got 0x%x back for target %d\n",
    888 		    isp->isp_name, sdf, mbs.param[2], tgt));
    889 #else
    890 		/*
    891 		 * We don't update any information because we need to run
    892 		 * at least one command per target to cause a new state
    893 		 * to be latched.
    894 		 */
    895 #endif
    896 		/*
    897 		 * Ensure that we don't believe tagged queuing is enabled yet.
    898 		 * It turns out that sometimes the ISP just ignores our
    899 		 * attempts to set parameters for devices that it hasn't
    900 		 * seen yet.
    901 		 */
    902 		sdp->isp_devparam[tgt].cur_dflags &= ~DPARM_TQING;
    903 		if (ISP_FW_REVX(isp->isp_fwrev) >= ISP_FW_REV(7, 55, 0))
    904 			maxlun = 32;
    905 		else
    906 			maxlun = 8;
    907 		for (lun = 0; lun < maxlun; lun++) {
    908 			mbs.param[0] = MBOX_SET_DEV_QUEUE_PARAMS;
    909 			mbs.param[1] = (channel << 15) | (tgt << 8) | lun;
    910 			mbs.param[2] = sdp->isp_max_queue_depth;
    911 			mbs.param[3] = sdp->isp_devparam[tgt].exc_throttle;
    912 			isp_mboxcmd(isp, &mbs);
    913 			if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    914 				PRINTF("%s: failed to set device queue "
    915 				    "parameters for target %d, lun %d\n",
    916 				    isp->isp_name, tgt, lun);
    917 				break;
    918 			}
    919 		}
    920 	}
    921 }
    922 
    923 /*
    924  * Fibre Channel specific initialization.
    925  *
    926  * Locks are held before coming here.
    927  */
    928 static void
    929 isp_fibre_init(isp)
    930 	struct ispsoftc *isp;
    931 {
    932 	fcparam *fcp;
    933 	isp_icb_t *icbp;
    934 	mbreg_t mbs;
    935 	int loopid;
    936 
    937 	fcp = isp->isp_param;
    938 
    939 	/*
    940 	 * For systems that don't have BIOS methods for which
    941 	 * we can easily change the NVRAM based loopid, we'll
    942 	 * override that here. Note that when we initialize
    943 	 * the firmware we may get back a different loopid than
    944 	 * we asked for anyway. XXX This is probably not the
    945 	 * best way to figure this out XXX
    946 	 */
    947 #ifndef	__i386__
    948 	loopid = DEFAULT_LOOPID(isp);
    949 #else
    950 	loopid = fcp->isp_loopid;
    951 #endif
    952 
    953 	icbp = (isp_icb_t *) fcp->isp_scratch;
    954 	MEMZERO(icbp, sizeof (*icbp));
    955 
    956 	icbp->icb_version = ICB_VERSION1;
    957 #ifdef	ISP_TARGET_MODE
    958 	fcp->isp_fwoptions = ICBOPT_TGT_ENABLE;
    959 #else
    960 	fcp->isp_fwoptions = 0;
    961 #endif
    962 
    963 	fcp->isp_fwoptions |= ICBOPT_FAIRNESS;
    964 	/*
    965 	 * If this is a 2100 < revision 5, we have to turn off FAIRNESS.
    966 	 */
    967 	if ((isp->isp_type == ISP_HA_FC_2100) && isp->isp_revision < 5) {
    968 		fcp->isp_fwoptions &= ~ICBOPT_FAIRNESS;
    969 	}
    970 	fcp->isp_fwoptions |= ICBOPT_PDBCHANGE_AE;
    971 	fcp->isp_fwoptions |= ICBOPT_HARD_ADDRESS;
    972 	/*
    973 	 * We have to use FULL LOGIN even though it resets the loop too much
    974 	 * because otherwise port database entries don't get updated after
    975 	 * a LIP- this is a known f/w bug.
    976 	 */
    977 	if (ISP_FW_REVX(isp->isp_fwrev) < ISP_FW_REV(1, 17, 0)) {
    978 		fcp->isp_fwoptions |= ICBOPT_FULL_LOGIN;
    979 	}
    980 #ifndef	ISP_NO_FASTPOST_FC
    981 	fcp->isp_fwoptions |= ICBOPT_FAST_POST;
    982 #endif
    983 	if (isp->isp_confopts & ISP_CFG_FULL_DUPLEX)
    984 		fcp->isp_fwoptions |= ICBOPT_FULL_DUPLEX;
    985 
    986 	/*
    987 	 * We don't set ICBOPT_PORTNAME because we want our
    988 	 * Node Name && Port Names to be distinct.
    989 	 */
    990 
    991 	icbp->icb_fwoptions = fcp->isp_fwoptions;
    992 	icbp->icb_maxfrmlen = fcp->isp_maxfrmlen;
    993 	if (icbp->icb_maxfrmlen < ICB_MIN_FRMLEN ||
    994 	    icbp->icb_maxfrmlen > ICB_MAX_FRMLEN) {
    995 		PRINTF("%s: bad frame length (%d) from NVRAM- using %d\n",
    996 		    isp->isp_name, fcp->isp_maxfrmlen, ICB_DFLT_FRMLEN);
    997 		icbp->icb_maxfrmlen = ICB_DFLT_FRMLEN;
    998 	}
    999 	icbp->icb_maxalloc = fcp->isp_maxalloc;
   1000 	if (icbp->icb_maxalloc < 1) {
   1001 		PRINTF("%s: bad maximum allocation (%d)- using 16\n",
   1002 		     isp->isp_name, fcp->isp_maxalloc);
   1003 		icbp->icb_maxalloc = 16;
   1004 	}
   1005 	icbp->icb_execthrottle = fcp->isp_execthrottle;
   1006 	if (icbp->icb_execthrottle < 1) {
   1007 		PRINTF("%s: bad execution throttle of %d- using 16\n",
   1008 		    isp->isp_name, fcp->isp_execthrottle);
   1009 		icbp->icb_execthrottle = ICB_DFLT_THROTTLE;
   1010 	}
   1011 	icbp->icb_retry_delay = fcp->isp_retry_delay;
   1012 	icbp->icb_retry_count = fcp->isp_retry_count;
   1013 	icbp->icb_hardaddr = loopid;
   1014 	icbp->icb_logintime = 30;	/* 30 second login timeout */
   1015 
   1016 	if (fcp->isp_nodewwn) {
   1017 		u_int64_t pn;
   1018 		MAKE_NODE_NAME_FROM_WWN(icbp->icb_nodename, fcp->isp_nodewwn);
   1019 		if (fcp->isp_portwwn) {
   1020 			pn = fcp->isp_portwwn;
   1021 		} else {
   1022 			pn = fcp->isp_nodewwn |
   1023 			    (((u_int64_t)(isp->isp_unit+1)) << 56);
   1024 		}
   1025 		/*
   1026 		 * If the top nibble is 2, we can construct a port name
   1027 		 * from the node name by setting a nonzero instance in
   1028 		 * bits 56..59. Otherwise, we need to make it identical
   1029 		 * to Node name...
   1030 		 */
   1031 		if ((fcp->isp_nodewwn >> 60) == 2) {
   1032 			MAKE_NODE_NAME_FROM_WWN(icbp->icb_portname, pn);
   1033 		} else {
   1034 			MAKE_NODE_NAME_FROM_WWN(icbp->icb_portname,
   1035 			    fcp->isp_nodewwn);
   1036 		}
   1037 	} else {
   1038 		fcp->isp_fwoptions &= ~(ICBOPT_USE_PORTNAME|ICBOPT_FULL_LOGIN);
   1039 	}
   1040 	icbp->icb_rqstqlen = RQUEST_QUEUE_LEN;
   1041 	icbp->icb_rsltqlen = RESULT_QUEUE_LEN;
   1042 	icbp->icb_rqstaddr[RQRSP_ADDR0015] = DMA_LSW(isp->isp_rquest_dma);
   1043 	icbp->icb_rqstaddr[RQRSP_ADDR1631] = DMA_MSW(isp->isp_rquest_dma);
   1044 	icbp->icb_respaddr[RQRSP_ADDR0015] = DMA_LSW(isp->isp_result_dma);
   1045 	icbp->icb_respaddr[RQRSP_ADDR1631] = DMA_MSW(isp->isp_result_dma);
   1046 	ISP_SWIZZLE_ICB(isp, icbp);
   1047 
   1048 	/*
   1049 	 * Do this *before* initializing the firmware.
   1050 	 */
   1051 	isp_mark_getpdb_all(isp);
   1052 	fcp->isp_fwstate = FW_CONFIG_WAIT;
   1053 	fcp->isp_loopstate = LOOP_NIL;
   1054 
   1055 	MemoryBarrier();
   1056 	for (;;) {
   1057 		mbs.param[0] = MBOX_INIT_FIRMWARE;
   1058 		mbs.param[1] = 0;
   1059 		mbs.param[2] = DMA_MSW(fcp->isp_scdma);
   1060 		mbs.param[3] = DMA_LSW(fcp->isp_scdma);
   1061 		mbs.param[4] = 0;
   1062 		mbs.param[5] = 0;
   1063 		mbs.param[6] = 0;
   1064 		mbs.param[7] = 0;
   1065 		isp_mboxcmd(isp, &mbs);
   1066 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
   1067 			PRINTF("%s: INIT FIRMWARE failed (code 0x%x)\n",
   1068 			    isp->isp_name, mbs.param[0]);
   1069 			if (mbs.param[0] & 0x8000) {
   1070 				SYS_DELAY(1000);
   1071 				continue;
   1072 			}
   1073 			return;
   1074 		}
   1075 		break;
   1076 	}
   1077 
   1078 	isp->isp_reqidx = isp->isp_reqodx = 0;
   1079 	isp->isp_residx = 0;
   1080 	isp->isp_sendmarker = 1;
   1081 
   1082 	/*
   1083 	 * Whatever happens, we're now committed to being here.
   1084 	 */
   1085 	isp->isp_state = ISP_INITSTATE;
   1086 }
   1087 
   1088 /*
   1089  * Fibre Channel Support- get the port database for the id.
   1090  *
   1091  * Locks are held before coming here. Return 0 if success,
   1092  * else failure.
   1093  */
   1094 
   1095 static void
   1096 isp_mark_getpdb_all(isp)
   1097 	struct ispsoftc *isp;
   1098 {
   1099 	fcparam *fcp = (fcparam *) isp->isp_param;
   1100 	int i;
   1101 	for (i = 0; i < MAX_FC_TARG; i++) {
   1102 		fcp->portdb[i].valid = 0;
   1103 	}
   1104 }
   1105 
   1106 static int
   1107 isp_getpdb(isp, id, pdbp)
   1108 	struct ispsoftc *isp;
   1109 	int id;
   1110 	isp_pdb_t *pdbp;
   1111 {
   1112 	fcparam *fcp = (fcparam *) isp->isp_param;
   1113 	mbreg_t mbs;
   1114 
   1115 	mbs.param[0] = MBOX_GET_PORT_DB;
   1116 	mbs.param[1] = id << 8;
   1117 	mbs.param[2] = DMA_MSW(fcp->isp_scdma);
   1118 	mbs.param[3] = DMA_LSW(fcp->isp_scdma);
   1119 	/*
   1120 	 * Unneeded. For the 2100, except for initializing f/w, registers
   1121 	 * 4/5 have to not be written to.
   1122 	 *	mbs.param[4] = 0;
   1123 	 *	mbs.param[5] = 0;
   1124 	 *
   1125 	 */
   1126 	mbs.param[6] = 0;
   1127 	mbs.param[7] = 0;
   1128 	isp_mboxcmd(isp, &mbs);
   1129 	switch (mbs.param[0]) {
   1130 	case MBOX_COMMAND_COMPLETE:
   1131 		MemoryBarrier();
   1132 		ISP_UNSWIZZLE_AND_COPY_PDBP(isp, pdbp, fcp->isp_scratch);
   1133 		break;
   1134 	case MBOX_HOST_INTERFACE_ERROR:
   1135 		PRINTF("%s: DMA error getting port database\n", isp->isp_name);
   1136 		return (-1);
   1137 	case MBOX_COMMAND_PARAM_ERROR:
   1138 		/* Not Logged In */
   1139 		IDPRINTF(3, ("%s: Param Error on Get Port Database for id %d\n",
   1140 		    isp->isp_name, id));
   1141 		return (-1);
   1142 	default:
   1143 		PRINTF("%s: error 0x%x getting port database for ID %d\n",
   1144 		    isp->isp_name, mbs.param[0], id);
   1145 		return (-1);
   1146 	}
   1147 	return (0);
   1148 }
   1149 
   1150 static u_int64_t
   1151 isp_get_portname(isp, loopid, nodename)
   1152 	struct ispsoftc *isp;
   1153 	int loopid;
   1154 	int nodename;
   1155 {
   1156 	u_int64_t wwn = 0;
   1157 	mbreg_t mbs;
   1158 
   1159 	mbs.param[0] = MBOX_GET_PORT_NAME;
   1160 	mbs.param[1] = loopid << 8;
   1161 	if (nodename)
   1162 		mbs.param[1] |= 1;
   1163 	isp_mboxcmd(isp, &mbs);
   1164 	if (mbs.param[0] == MBOX_COMMAND_COMPLETE) {
   1165 		wwn =
   1166 		    (((u_int64_t)(mbs.param[2] & 0xff)) << 56) |
   1167 		    (((u_int64_t)(mbs.param[2] >> 8))	<< 48) |
   1168 		    (((u_int64_t)(mbs.param[3] & 0xff))	<< 40) |
   1169 		    (((u_int64_t)(mbs.param[3] >> 8))	<< 32) |
   1170 		    (((u_int64_t)(mbs.param[6] & 0xff))	<< 24) |
   1171 		    (((u_int64_t)(mbs.param[6] >> 8))	<< 16) |
   1172 		    (((u_int64_t)(mbs.param[7] & 0xff))	<<  8) |
   1173 		    (((u_int64_t)(mbs.param[7] >> 8)));
   1174 	}
   1175 	return (wwn);
   1176 }
   1177 
   1178 /*
   1179  * Make sure we have good FC link and know our Loop ID.
   1180  */
   1181 
   1182 static int
   1183 isp_fclink_test(isp, waitdelay)
   1184 	struct ispsoftc *isp;
   1185 	int waitdelay;
   1186 {
   1187 	static char *toponames[] = {
   1188 		"Private Loop",
   1189 		"FL Port",
   1190 		"N-Port to N-Port",
   1191 		"F Port"
   1192 	};
   1193 	char *tname;
   1194 	mbreg_t mbs;
   1195 	int count, topo = -1;
   1196 	u_int8_t lwfs;
   1197 	fcparam *fcp;
   1198 #if	defined(ISP2100_FABRIC)
   1199 	isp_pdb_t pdb;
   1200 #endif
   1201 	fcp = isp->isp_param;
   1202 
   1203 	/*
   1204 	 * Wait up to N microseconds for F/W to go to a ready state.
   1205 	 */
   1206 	lwfs = FW_CONFIG_WAIT;
   1207 	for (count = 0; count < waitdelay; count += 100) {
   1208 		isp_fw_state(isp);
   1209 		if (lwfs != fcp->isp_fwstate) {
   1210 			PRINTF("%s: Firmware State %s -> %s\n",
   1211 			    isp->isp_name, isp2100_fw_statename((int)lwfs),
   1212 			    isp2100_fw_statename((int)fcp->isp_fwstate));
   1213 			lwfs = fcp->isp_fwstate;
   1214 		}
   1215 		if (fcp->isp_fwstate == FW_READY) {
   1216 			break;
   1217 		}
   1218 		SYS_DELAY(100);	/* wait 100 microseconds */
   1219 	}
   1220 
   1221 	/*
   1222 	 * If we haven't gone to 'ready' state, return.
   1223 	 */
   1224 	if (fcp->isp_fwstate != FW_READY) {
   1225 		return (-1);
   1226 	}
   1227 
   1228 	/*
   1229 	 * Get our Loop ID (if possible). We really need to have it.
   1230 	 */
   1231 	mbs.param[0] = MBOX_GET_LOOP_ID;
   1232 	isp_mboxcmd(isp, &mbs);
   1233 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
   1234 		PRINTF("%s: GET LOOP ID failed\n", isp->isp_name);
   1235 		return (-1);
   1236 	}
   1237 	fcp->isp_loopid = mbs.param[1];
   1238 	if (isp->isp_type == ISP_HA_FC_2200) {
   1239 		if (ISP_FW_REVX(isp->isp_fwrev) >= ISP_FW_REV(2, 0, 14)) {
   1240 			topo = (int) mbs.param[6];
   1241 		}
   1242 	} else if (isp->isp_type == ISP_HA_FC_2100) {
   1243 		if (ISP_FW_REVX(isp->isp_fwrev) >= ISP_FW_REV(1, 17, 26)) {
   1244 			topo = (int) mbs.param[6];
   1245 		}
   1246 	}
   1247 	if (topo < 0 || topo > 3)
   1248 		tname = "unknown";
   1249 	else
   1250 		tname = toponames[topo];
   1251 
   1252 	/*
   1253 	 * If we're not on a fabric, the low 8 bits will be our AL_PA.
   1254 	 * If we're on a fabric, the low 8 bits will still be our AL_PA.
   1255 	 */
   1256 	fcp->isp_alpa = mbs.param[2];
   1257 #if	defined(ISP2100_FABRIC)
   1258 	fcp->isp_onfabric = 0;
   1259 	if (isp_getpdb(isp, FL_PORT_ID, &pdb) == 0) {
   1260 		fcp->isp_portid = mbs.param[2] | (((int)mbs.param[3]) << 16);
   1261 		fcp->isp_onfabric = 1;
   1262 		CFGPRINTF("%s: Loop ID %d, AL_PA 0x%x, Port ID 0x%x Loop State "
   1263 		    "0x%x topology %s\n", isp->isp_name, fcp->isp_loopid,
   1264 		    fcp->isp_alpa, fcp->isp_portid, fcp->isp_loopstate, tname);
   1265 
   1266 		/*
   1267 		 * Make sure we're logged out of all fabric devices.
   1268 		 */
   1269 		for (count = FC_SNS_ID+1; count < MAX_FC_TARG; count++) {
   1270 			struct lportdb *lp = &fcp->portdb[count];
   1271 			if (lp->valid == 0 || lp->fabdev == 0)
   1272 				continue;
   1273 			PRINTF("%s: logging out target %d at Loop ID %d "
   1274 			    "(port id 0x%x)\n", isp->isp_name, count,
   1275 			    lp->loopid, lp->portid);
   1276 			mbs.param[0] = MBOX_FABRIC_LOGOUT;
   1277 			mbs.param[1] = lp->loopid << 8;
   1278 			mbs.param[2] = 0;
   1279 			mbs.param[3] = 0;
   1280 			isp_mboxcmd(isp, &mbs);
   1281 		}
   1282 	} else
   1283 #endif
   1284 	CFGPRINTF("%s: Loop ID %d, ALPA 0x%x Loop State 0x%x topology %s\n",
   1285 	    isp->isp_name, fcp->isp_loopid, fcp->isp_alpa, fcp->isp_loopstate,
   1286 	    tname);
   1287 	fcp->loop_seen_once = 1;
   1288 	return (0);
   1289 }
   1290 
   1291 /*
   1292  * Compare two local port db entities and return 1 if they're the same, else 0.
   1293  */
   1294 
   1295 static int
   1296 isp_same_lportdb(a, b)
   1297 	struct lportdb *a, *b;
   1298 {
   1299 	/*
   1300 	 * We decide two lports are the same if they have non-zero and
   1301 	 * identical port WWNs and identical loop IDs.
   1302 	 */
   1303 
   1304 	if (a->port_wwn == 0 || a->port_wwn != b->port_wwn ||
   1305 	    a->loopid != b->loopid) {
   1306 		return (0);
   1307 	} else {
   1308 		return (1);
   1309 	}
   1310 }
   1311 
   1312 /*
   1313  * Synchronize our soft copy of the port database with what the f/w thinks
   1314  * (with a view toward possibly for a specific target....)
   1315  */
   1316 
   1317 static int
   1318 isp_pdb_sync(isp, target)
   1319 	struct ispsoftc *isp;
   1320 	int target;
   1321 {
   1322 	struct lportdb *lp, *tport;
   1323 	fcparam *fcp = isp->isp_param;
   1324 	isp_pdb_t pdb;
   1325 	int loopid, lim;
   1326 
   1327 #ifdef	ISP2100_FABRIC
   1328 	/*
   1329 	 * XXX: If we do this *after* building up our local port database,
   1330 	 * XXX: the commands simply don't work.
   1331 	 */
   1332 	/*
   1333 	 * (Re)discover all fabric devices
   1334 	 */
   1335 	if (fcp->isp_onfabric)
   1336 		(void) isp_scan_fabric(isp);
   1337 #endif
   1338 
   1339 
   1340 	/*
   1341 	 * Run through the local loop ports and get port database info
   1342 	 * for each loop ID.
   1343 	 *
   1344 	 * There's a somewhat unexplained situation where the f/w passes back
   1345 	 * the wrong database entity- if that happens, just restart (up to
   1346 	 * FL_PORT_ID times).
   1347 	 */
   1348 	tport = fcp->tport;
   1349 	/*
   1350 	 * make sure the temp port database is clean...
   1351 	 */
   1352 	MEMZERO((void *) tport, sizeof (tport));
   1353 	for (lim = loopid = 0; loopid < FL_PORT_ID; loopid++) {
   1354 		lp = &tport[loopid];
   1355 		lp->node_wwn = isp_get_portname(isp, loopid, 1);
   1356 		if (lp->node_wwn == 0)
   1357 			continue;
   1358 		lp->port_wwn = isp_get_portname(isp, loopid, 0);
   1359 		if (lp->port_wwn == 0) {
   1360 			lp->node_wwn = 0;
   1361 			continue;
   1362 		}
   1363 
   1364 		/*
   1365 		 * Get an entry....
   1366 		 */
   1367 		if (isp_getpdb(isp, loopid, &pdb) != 0) {
   1368 			continue;
   1369 		}
   1370 
   1371 		/*
   1372 		 * If the returned database element doesn't match what we
   1373 		 * asked for, restart the process entirely (up to a point...).
   1374 		 */
   1375 		if (pdb.pdb_loopid != loopid) {
   1376 			IDPRINTF(1, ("%s: wankage (%d != %d)\n",
   1377 			    isp->isp_name, pdb.pdb_loopid, loopid));
   1378 			loopid = 0;
   1379 			if (lim++ < FL_PORT_ID) {
   1380 				continue;
   1381 			}
   1382 			PRINTF("%s: giving up on synchronizing the port "
   1383 			    "database\n", isp->isp_name);
   1384 			return (-1);
   1385 		}
   1386 
   1387 		/*
   1388 		 * Save the pertinent info locally.
   1389 		 */
   1390 		lp->node_wwn =
   1391 		    (((u_int64_t)pdb.pdb_nodename[0]) << 56) |
   1392 		    (((u_int64_t)pdb.pdb_nodename[1]) << 48) |
   1393 		    (((u_int64_t)pdb.pdb_nodename[2]) << 40) |
   1394 		    (((u_int64_t)pdb.pdb_nodename[3]) << 32) |
   1395 		    (((u_int64_t)pdb.pdb_nodename[4]) << 24) |
   1396 		    (((u_int64_t)pdb.pdb_nodename[5]) << 16) |
   1397 		    (((u_int64_t)pdb.pdb_nodename[6]) <<  8) |
   1398 		    (((u_int64_t)pdb.pdb_nodename[7]));
   1399 		lp->port_wwn =
   1400 		    (((u_int64_t)pdb.pdb_portname[0]) << 56) |
   1401 		    (((u_int64_t)pdb.pdb_portname[1]) << 48) |
   1402 		    (((u_int64_t)pdb.pdb_portname[2]) << 40) |
   1403 		    (((u_int64_t)pdb.pdb_portname[3]) << 32) |
   1404 		    (((u_int64_t)pdb.pdb_portname[4]) << 24) |
   1405 		    (((u_int64_t)pdb.pdb_portname[5]) << 16) |
   1406 		    (((u_int64_t)pdb.pdb_portname[6]) <<  8) |
   1407 		    (((u_int64_t)pdb.pdb_portname[7]));
   1408 		lp->roles =
   1409 		    (pdb.pdb_prli_svc3 & SVC3_ROLE_MASK) >> SVC3_ROLE_SHIFT;
   1410 		lp->portid = BITS2WORD(pdb.pdb_portid_bits);
   1411 		lp->loopid = pdb.pdb_loopid;
   1412 		/*
   1413 		 * Do a quick check to see whether this matches the saved port
   1414 		 * database for the same loopid. We do this here to save
   1415 		 * searching later (if possible). Note that this fails over
   1416 		 * time as things shuffle on the loop- we get the current
   1417 		 * loop state (where loop id as an index matches loop id in
   1418 		 * use) and then compare it to our saved database which
   1419 		 * never shifts.
   1420 		 */
   1421 		if (isp_same_lportdb(lp, &fcp->portdb[target])) {
   1422 			lp->valid = 1;
   1423 		}
   1424 	}
   1425 
   1426 	/*
   1427 	 * If we get this far, we've settled our differences with the f/w
   1428 	 * and we can say that the loop state is ready.
   1429 	 */
   1430 	fcp->isp_loopstate = LOOP_READY;
   1431 
   1432 	/*
   1433 	 * Mark all of the permanent local loop database entries as invalid.
   1434 	 */
   1435 	for (loopid = 0; loopid < FL_PORT_ID; loopid++) {
   1436 		fcp->portdb[loopid].valid = 0;
   1437 	}
   1438 
   1439 	/*
   1440 	 * Now merge our local copy of the port database into our saved copy.
   1441 	 * Notify the outer layers of new devices arriving.
   1442 	 */
   1443 	for (loopid = 0; loopid < FL_PORT_ID; loopid++) {
   1444 		int i;
   1445 
   1446 		/*
   1447 		 * If we don't have a non-zero Port WWN, we're not here.
   1448 		 */
   1449 		if (tport[loopid].port_wwn == 0) {
   1450 			continue;
   1451 		}
   1452 
   1453 		/*
   1454 		 * If we've already marked our tmp copy as valid,
   1455 		 * this means that we've decided that it's the
   1456 		 * same as our saved data base. This didn't include
   1457 		 * the 'valid' marking so we have set that here.
   1458 		 */
   1459 		if (tport[loopid].valid) {
   1460 			fcp->portdb[loopid].valid = 1;
   1461 			continue;
   1462 		}
   1463 
   1464 		/*
   1465 		 * For the purposes of deciding whether this is the
   1466 		 * 'same' device or not, we only search for an identical
   1467 		 * Port WWN. Node WWNs may or may not be the same as
   1468 		 * the Port WWN, and there may be multiple different
   1469 		 * Port WWNs with the same Node WWN. It would be chaos
   1470 		 * to have multiple identical Port WWNs, so we don't
   1471 		 * allow that.
   1472 		 */
   1473 
   1474 		for (i = 0; i < FL_PORT_ID; i++) {
   1475 			int j;
   1476 			if (fcp->portdb[i].port_wwn == 0)
   1477 				continue;
   1478 			if (fcp->portdb[i].port_wwn != tport[loopid].port_wwn)
   1479 				continue;
   1480 			/*
   1481 			 * We found this WWN elsewhere- it's changed
   1482 			 * loopids then. We don't change it's actual
   1483 			 * position in our cached port database- we
   1484 			 * just change the actual loop ID we'd use.
   1485 			 */
   1486 			if (fcp->portdb[i].loopid != loopid) {
   1487 				PRINTF("%s: Target ID %d Loop 0x%x (Port 0x%x) "
   1488 				    "=> Loop 0x%x (Port 0x%x) \n",
   1489 				    isp->isp_name, i, fcp->portdb[i].loopid,
   1490 				    fcp->portdb[i].portid, loopid,
   1491 				    tport[loopid].portid);
   1492 			}
   1493 			fcp->portdb[i].portid = tport[loopid].portid;
   1494 			fcp->portdb[i].loopid = loopid;
   1495 			fcp->portdb[i].valid = 1;
   1496 			/*
   1497 			 * XXX: Should we also propagate roles in case they
   1498 			 * XXX: changed?
   1499 			 */
   1500 
   1501 			/*
   1502 			 * Now make sure this Port WWN doesn't exist elsewhere
   1503 			 * in the port database.
   1504 			 */
   1505 			for (j = i+1; j < FL_PORT_ID; j++) {
   1506 				if (fcp->portdb[i].port_wwn !=
   1507 				    fcp->portdb[j].port_wwn) {
   1508 					continue;
   1509 				}
   1510 				PRINTF("%s: Target ID %d Duplicates Target ID "
   1511 				    "%d- killing off both\n",
   1512 				    isp->isp_name, j, i);
   1513 				/*
   1514 				 * Invalidate the 'old' *and* 'new' ones.
   1515 				 * This is really harsh and not quite right,
   1516 				 * but if this happens, we really don't know
   1517 				 * who is what at this point.
   1518 				 */
   1519 				fcp->portdb[i].valid = 0;
   1520 				fcp->portdb[j].valid = 0;
   1521 			}
   1522 			break;
   1523 		}
   1524 
   1525 		/*
   1526 		 * If we didn't traverse the entire port database,
   1527 		 * then we found (and remapped) an existing entry.
   1528 		 * No need to notify anyone- go for the next one.
   1529 		 */
   1530 		if (i < FL_PORT_ID) {
   1531 			continue;
   1532 		}
   1533 
   1534 		/*
   1535 		 * We've not found this Port WWN anywhere. It's a new entry.
   1536 		 * See if we can leave it where it is (with target == loopid).
   1537 		 */
   1538 		if (fcp->portdb[loopid].port_wwn != 0) {
   1539 			for (lim = 0; lim < FL_PORT_ID; lim++) {
   1540 				if (fcp->portdb[lim].port_wwn == 0)
   1541 					break;
   1542 			}
   1543 			/* "Cannot Happen" */
   1544 			if (lim == FL_PORT_ID) {
   1545 				PRINTF("%s: remap overflow?\n", isp->isp_name);
   1546 				continue;
   1547 			}
   1548 			i = lim;
   1549 		} else {
   1550 			i = loopid;
   1551 		}
   1552 
   1553 		/*
   1554 		 * NB:	The actual loopid we use here is loopid- we may
   1555 		 *	in fact be at a completely different index (target).
   1556 		 */
   1557 		fcp->portdb[i].loopid = loopid;
   1558 		fcp->portdb[i].port_wwn = tport[loopid].port_wwn;
   1559 		fcp->portdb[i].node_wwn = tport[loopid].node_wwn;
   1560 		fcp->portdb[i].roles = tport[loopid].roles;
   1561 		fcp->portdb[i].portid = tport[loopid].portid;
   1562 		fcp->portdb[i].valid = 1;
   1563 
   1564 		/*
   1565 		 * Tell the outside world we've arrived.
   1566 		 */
   1567 		(void) isp_async(isp, ISPASYNC_PDB_CHANGED, &i);
   1568 	}
   1569 
   1570 	/*
   1571 	 * Now find all previously used targets that are now invalid and
   1572 	 * notify the outer layers that they're gone.
   1573 	 */
   1574 	for (lp = fcp->portdb; lp < &fcp->portdb[FL_PORT_ID]; lp++) {
   1575 		if (lp->valid || lp->port_wwn == 0)
   1576 			continue;
   1577 
   1578 		/*
   1579 		 * Tell the outside world we've gone away.
   1580 		 */
   1581 		loopid = lp - fcp->portdb;
   1582 		(void) isp_async(isp, ISPASYNC_PDB_CHANGED, &loopid);
   1583 		MEMZERO((void *) lp, sizeof (*lp));
   1584 	}
   1585 
   1586 #ifdef	ISP2100_FABRIC
   1587 	/*
   1588 	 * Now log in any fabric devices
   1589 	 */
   1590 	for (lp = &fcp->portdb[FC_SNS_ID+1];
   1591 	     lp < &fcp->portdb[MAX_FC_TARG]; lp++) {
   1592 		mbreg_t mbs;
   1593 
   1594 		/*
   1595 		 * Nothing here?
   1596 		 */
   1597 		if (lp->port_wwn == 0)
   1598 			continue;
   1599 		/*
   1600 		 * Don't try to log into yourself.
   1601 		 */
   1602 		if (lp->portid == fcp->isp_portid)
   1603 			continue;
   1604 
   1605 		/*
   1606 		 * Force a logout.
   1607 		 */
   1608 		lp->loopid = loopid = lp - fcp->portdb;
   1609 		mbs.param[0] = MBOX_FABRIC_LOGOUT;
   1610 		mbs.param[1] = lp->loopid << 8;
   1611 		mbs.param[2] = 0;
   1612 		mbs.param[3] = 0;
   1613 		isp_mboxcmd(isp, &mbs);
   1614 
   1615 		/*
   1616 		 * And log in....
   1617 		 */
   1618 		mbs.param[0] = MBOX_FABRIC_LOGIN;
   1619 		mbs.param[1] = lp->loopid << 8;
   1620 		mbs.param[2] = lp->portid >> 16;
   1621 		mbs.param[3] = lp->portid & 0xffff;
   1622 		isp_mboxcmd(isp, &mbs);
   1623 		switch (mbs.param[0]) {
   1624 		case  MBOX_COMMAND_COMPLETE:
   1625 			break;
   1626 		case MBOX_COMMAND_ERROR:
   1627 			switch (mbs.param[1]) {
   1628 			case	1:
   1629 				PRINTF("%s: no loop\n", isp->isp_name);
   1630 				break;
   1631 			case	2:
   1632 				PRINTF("%s: IOCB buffer could not be alloced\n",
   1633 				    isp->isp_name);
   1634 				break;
   1635 			case	3:
   1636 				PRINTF("%s: could not alloc xchange resource\n",
   1637 				    isp->isp_name);
   1638 				break;
   1639 			case	4:
   1640 				PRINTF("%s: ELS timeout\n", isp->isp_name);
   1641 				break;
   1642 			case	5:
   1643 				PRINTF("%s: no fabric port\n", isp->isp_name);
   1644 				break;
   1645 			case	6:
   1646 				PRINTF("%s: remote device cannot be a target\n",
   1647 				    isp->isp_name);
   1648 				break;
   1649 			default:
   1650 				break;
   1651 			}
   1652 			continue;
   1653 		default:
   1654 			continue;
   1655 		}
   1656 
   1657 		lp->valid = 1;
   1658 		lp->fabdev = 1;
   1659 		if (isp_getpdb(isp, loopid, &pdb) != 0) {
   1660 			/*
   1661 			 * Be kind...
   1662 			 */
   1663 			lp->roles = (SVC3_TGT_ROLE >> SVC3_ROLE_SHIFT);
   1664 			PRINTF("%s: Faked PortID 0x%x into LoopID %d\n",
   1665 			    isp->isp_name, lp->portid, lp->loopid);
   1666 			continue;
   1667 		}
   1668 		if (pdb.pdb_loopid != lp->loopid) {
   1669 			lp->roles = (SVC3_TGT_ROLE >> SVC3_ROLE_SHIFT);
   1670 			PRINTF("%s: Wanked PortID 0x%x to LoopID %d\n",
   1671 			    isp->isp_name, lp->portid, lp->loopid);
   1672 			continue;
   1673 		}
   1674 		lp->roles =
   1675 		    (pdb.pdb_prli_svc3 & SVC3_ROLE_MASK) >> SVC3_ROLE_SHIFT;
   1676 		lp->portid = BITS2WORD(pdb.pdb_portid_bits);
   1677 		lp->loopid = loopid;
   1678 		lp->node_wwn =
   1679 		    (((u_int64_t)pdb.pdb_nodename[0]) << 56) |
   1680 		    (((u_int64_t)pdb.pdb_nodename[1]) << 48) |
   1681 		    (((u_int64_t)pdb.pdb_nodename[2]) << 40) |
   1682 		    (((u_int64_t)pdb.pdb_nodename[3]) << 32) |
   1683 		    (((u_int64_t)pdb.pdb_nodename[4]) << 24) |
   1684 		    (((u_int64_t)pdb.pdb_nodename[5]) << 16) |
   1685 		    (((u_int64_t)pdb.pdb_nodename[6]) <<  8) |
   1686 		    (((u_int64_t)pdb.pdb_nodename[7]));
   1687 		lp->port_wwn =
   1688 		    (((u_int64_t)pdb.pdb_portname[0]) << 56) |
   1689 		    (((u_int64_t)pdb.pdb_portname[1]) << 48) |
   1690 		    (((u_int64_t)pdb.pdb_portname[2]) << 40) |
   1691 		    (((u_int64_t)pdb.pdb_portname[3]) << 32) |
   1692 		    (((u_int64_t)pdb.pdb_portname[4]) << 24) |
   1693 		    (((u_int64_t)pdb.pdb_portname[5]) << 16) |
   1694 		    (((u_int64_t)pdb.pdb_portname[6]) <<  8) |
   1695 		    (((u_int64_t)pdb.pdb_portname[7]));
   1696 		/*
   1697 		 * Check to make sure this all makes sense.
   1698 		 */
   1699 		if (lp->node_wwn && lp->port_wwn) {
   1700 			(void) isp_async(isp, ISPASYNC_PDB_CHANGED, &loopid);
   1701 			continue;
   1702 		}
   1703 		lp->fabdev = lp->valid = 0;
   1704 		PRINTF("%s: Target %d (Loop 0x%x) Port ID 0x%x lost its WWN\n",
   1705 		    isp->isp_name, loopid, lp->loopid, lp->portid);
   1706 		mbs.param[0] = MBOX_FABRIC_LOGOUT;
   1707 		mbs.param[1] = lp->loopid << 8;
   1708 		mbs.param[2] = 0;
   1709 		mbs.param[3] = 0;
   1710 		isp_mboxcmd(isp, &mbs);
   1711 	}
   1712 #endif
   1713 	return (0);
   1714 }
   1715 
   1716 #ifdef	ISP2100_FABRIC
   1717 static int
   1718 isp_scan_fabric(isp)
   1719 	struct ispsoftc *isp;
   1720 {
   1721 	fcparam *fcp = isp->isp_param;
   1722 	u_int32_t portid, first_nz_portid;
   1723 	sns_screq_t *reqp;
   1724 	sns_scrsp_t *resp;
   1725 	mbreg_t mbs;
   1726 	int hicap;
   1727 
   1728 	reqp = (sns_screq_t *) fcp->isp_scratch;
   1729 	resp = (sns_scrsp_t *) (&((char *)fcp->isp_scratch)[0x100]);
   1730 	first_nz_portid = portid = fcp->isp_portid;
   1731 
   1732 	for (hicap = 0; hicap < 1024; hicap++) {
   1733 		MEMZERO((void *) reqp, SNS_GAN_REQ_SIZE);
   1734 		reqp->snscb_rblen = SNS_GAN_RESP_SIZE >> 1;
   1735 		reqp->snscb_addr[RQRSP_ADDR0015] =
   1736 			DMA_LSW(fcp->isp_scdma + 0x100);
   1737 		reqp->snscb_addr[RQRSP_ADDR1631] =
   1738 			DMA_MSW(fcp->isp_scdma + 0x100);
   1739 		reqp->snscb_sblen = 6;
   1740 		reqp->snscb_data[0] = SNS_GAN;
   1741 		reqp->snscb_data[4] = portid & 0xffff;
   1742 		reqp->snscb_data[5] = (portid >> 16) & 0xff;
   1743 		ISP_SWIZZLE_SNS_REQ(isp, reqp);
   1744 		mbs.param[0] = MBOX_SEND_SNS;
   1745 		mbs.param[1] = SNS_GAN_REQ_SIZE >> 1;
   1746 		mbs.param[2] = DMA_MSW(fcp->isp_scdma);
   1747 		mbs.param[3] = DMA_LSW(fcp->isp_scdma);
   1748 		mbs.param[6] = 0;
   1749 		mbs.param[7] = 0;
   1750 		MemoryBarrier();
   1751 		isp_mboxcmd(isp, &mbs);
   1752 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
   1753 			return (-1);
   1754 		}
   1755 		ISP_UNSWIZZLE_SNS_RSP(isp, resp, SNS_GAN_RESP_SIZE >> 1);
   1756 		portid = (((u_int32_t) resp->snscb_port_id[0]) << 16) |
   1757 		    (((u_int32_t) resp->snscb_port_id[1]) << 8) |
   1758 		    (((u_int32_t) resp->snscb_port_id[2]));
   1759 		if (isp_async(isp, ISPASYNC_FABRIC_DEV, resp)) {
   1760 			return (-1);
   1761 		}
   1762 		if (first_nz_portid == 0 && portid) {
   1763 			first_nz_portid = portid;
   1764 		}
   1765 		if (first_nz_portid == portid) {
   1766 			return (0);
   1767 		}
   1768 	}
   1769 	/*
   1770 	 * We either have a broken name server or a huge fabric if we get here.
   1771 	 */
   1772 	return (0);
   1773 }
   1774 #endif
   1775 /*
   1776  * Start a command. Locking is assumed done in the caller.
   1777  */
   1778 
   1779 int32_t
   1780 ispscsicmd(xs)
   1781 	ISP_SCSI_XFER_T *xs;
   1782 {
   1783 	struct ispsoftc *isp;
   1784 	u_int16_t iptr, optr;
   1785 	union {
   1786 		ispreq_t *_reqp;
   1787 		ispreqt2_t *_t2reqp;
   1788 	} _u;
   1789 #define	reqp	_u._reqp
   1790 #define	t2reqp	_u._t2reqp
   1791 #define	UZSIZE	max(sizeof (ispreq_t), sizeof (ispreqt2_t))
   1792 	int target, i;
   1793 
   1794 	XS_INITERR(xs);
   1795 	isp = XS_ISP(xs);
   1796 
   1797 	if (isp->isp_state != ISP_RUNSTATE) {
   1798 		PRINTF("%s: adapter not ready\n", isp->isp_name);
   1799 		XS_SETERR(xs, HBA_BOTCH);
   1800 		return (CMD_COMPLETE);
   1801 	}
   1802 
   1803 	/*
   1804 	 * We *could* do the different sequence type that has close
   1805 	 * to the whole Queue Entry for the command...
   1806 	 */
   1807 
   1808 	if (XS_CDBLEN(xs) > (IS_FC(isp) ? 16 : 12) || XS_CDBLEN(xs) == 0) {
   1809 		PRINTF("%s: unsupported cdb length (%d, CDB[0]=0x%x)\n",
   1810 		    isp->isp_name, XS_CDBLEN(xs), XS_CDBP(xs)[0]);
   1811 		XS_SETERR(xs, HBA_BOTCH);
   1812 		return (CMD_COMPLETE);
   1813 	}
   1814 
   1815 	/*
   1816 	 * Check to see whether we have good firmware state still or
   1817 	 * need to refresh our port database for this target.
   1818 	 */
   1819 	target = XS_TGT(xs);
   1820 	if (IS_FC(isp)) {
   1821 		fcparam *fcp = isp->isp_param;
   1822 		struct lportdb *lp;
   1823 #if	defined(ISP2100_FABRIC)
   1824 		if (target >= FL_PORT_ID) {
   1825 			/*
   1826 			 * If we're not on a Fabric, we can't have a target
   1827 			 * above FL_PORT_ID-1. If we're on a fabric, we
   1828 			 * can't have a target less than FC_SNS_ID+1.
   1829 			 */
   1830 			if (fcp->isp_onfabric == 0 || target <= FC_SNS_ID) {
   1831 				XS_SETERR(xs, HBA_SELTIMEOUT);
   1832 				return (CMD_COMPLETE);
   1833 			}
   1834 		}
   1835 #endif
   1836 		/*
   1837 		 * Check for f/w being in ready state. If the f/w
   1838 		 * isn't in ready state, then we don't know our
   1839 		 * loop ID and the f/w hasn't completed logging
   1840 		 * into all targets on the loop. If this is the
   1841 		 * case, then bounce the command. We pretend this is
   1842 		 * a SELECTION TIMEOUT error if we've never gone to
   1843 		 * FW_READY state at all- in this case we may not
   1844 		 * be hooked to a loop at all and we shouldn't hang
   1845 		 * the machine for this. Otherwise, defer this command
   1846 		 * until later.
   1847 		 */
   1848 		if (fcp->isp_fwstate != FW_READY) {
   1849 			if (isp_fclink_test(isp, FC_FW_READY_DELAY)) {
   1850 				XS_SETERR(xs, HBA_SELTIMEOUT);
   1851 				if (fcp->loop_seen_once) {
   1852 					return (CMD_RQLATER);
   1853 				} else {
   1854 					return (CMD_COMPLETE);
   1855 				}
   1856 			}
   1857 		}
   1858 
   1859 		/*
   1860 		 * If our loop state is such that we haven't yet received
   1861 		 * a "Port Database Changed" notification (after a LIP or
   1862 		 * a Loop Reset or firmware initialization), then defer
   1863 		 * sending commands for a little while.
   1864 		 */
   1865 		if (fcp->isp_loopstate < LOOP_PDB_RCVD) {
   1866 			XS_SETERR(xs, HBA_SELTIMEOUT);
   1867 			return (CMD_RQLATER);
   1868 		}
   1869 
   1870 		/*
   1871 		 * If our loop state is now such that we've just now
   1872 		 * received a Port Database Change notification, then
   1873 		 * we have to go off and (re)synchronize our port
   1874 		 * database.
   1875 		 */
   1876 		if (fcp->isp_loopstate == LOOP_PDB_RCVD) {
   1877 			if (isp_pdb_sync(isp, target)) {
   1878 				XS_SETERR(xs, HBA_SELTIMEOUT);
   1879 				return (CMD_COMPLETE);
   1880 			}
   1881 		}
   1882 
   1883 		/*
   1884 		 * Now check whether we should even think about pursuing this.
   1885 		 */
   1886 		lp = &fcp->portdb[target];
   1887 		if (lp->valid == 0) {
   1888 			XS_SETERR(xs, HBA_SELTIMEOUT);
   1889 			return (CMD_COMPLETE);
   1890 		}
   1891 		if ((lp->roles & (SVC3_TGT_ROLE >> SVC3_ROLE_SHIFT)) == 0) {
   1892 			IDPRINTF(3, ("%s: target %d is not a target\n",
   1893 			    isp->isp_name, target));
   1894 			XS_SETERR(xs, HBA_SELTIMEOUT);
   1895 			return (CMD_COMPLETE);
   1896 		}
   1897 		/*
   1898 		 * Now turn target into what the actual loop ID is.
   1899 		 */
   1900 		target = lp->loopid;
   1901 	}
   1902 
   1903 	/*
   1904 	 * Next check to see if any HBA or Device
   1905 	 * parameters need to be updated.
   1906 	 */
   1907 	if (isp->isp_update != 0) {
   1908 		isp_update(isp);
   1909 	}
   1910 
   1911 	if (isp_getrqentry(isp, &iptr, &optr, (void **) &reqp)) {
   1912 		IDPRINTF(1, ("%s: Request Queue Overflow\n", isp->isp_name));
   1913 		XS_SETERR(xs, HBA_BOTCH);
   1914 		return (CMD_EAGAIN);
   1915 	}
   1916 
   1917 	/*
   1918 	 * Now see if we need to synchronize the ISP with respect to anything.
   1919 	 * We do dual duty here (cough) for synchronizing for busses other
   1920 	 * than which we got here to send a command to.
   1921 	 */
   1922 	if (isp->isp_sendmarker) {
   1923 		u_int8_t n = (IS_12X0(isp)? 2: 1);
   1924 		/*
   1925 		 * Check ports to send markers for...
   1926 		 */
   1927 		for (i = 0; i < n; i++) {
   1928 			if ((isp->isp_sendmarker & (1 << i)) == 0) {
   1929 				continue;
   1930 			}
   1931 			MEMZERO((void *) reqp, sizeof (*reqp));
   1932 			reqp->req_header.rqs_entry_count = 1;
   1933 			reqp->req_header.rqs_entry_type = RQSTYPE_MARKER;
   1934 			reqp->req_modifier = SYNC_ALL;
   1935 			reqp->req_target = i << 7;	/* insert bus number */
   1936 			ISP_SWIZZLE_REQUEST(isp, reqp);
   1937 			MemoryBarrier();
   1938 			ISP_ADD_REQUEST(isp, iptr);
   1939 
   1940 			if (isp_getrqentry(isp, &iptr, &optr, (void **)&reqp)) {
   1941 				IDPRINTF(1, ("%s: Request Queue Overflow+\n",
   1942 				    isp->isp_name));
   1943 				XS_SETERR(xs, HBA_BOTCH);
   1944 				return (CMD_EAGAIN);
   1945 			}
   1946 		}
   1947 	}
   1948 
   1949 	MEMZERO((void *) reqp, UZSIZE);
   1950 	reqp->req_header.rqs_entry_count = 1;
   1951 	if (IS_FC(isp)) {
   1952 		reqp->req_header.rqs_entry_type = RQSTYPE_T2RQS;
   1953 	} else {
   1954 		reqp->req_header.rqs_entry_type = RQSTYPE_REQUEST;
   1955 	}
   1956 	reqp->req_header.rqs_flags = 0;
   1957 	reqp->req_header.rqs_seqno = 0;
   1958 	if (IS_FC(isp)) {
   1959 		/*
   1960 		 * See comment in isp_intr
   1961 		 */
   1962 		XS_RESID(xs) = 0;
   1963 
   1964 		/*
   1965 		 * Fibre Channel always requires some kind of tag.
   1966 		 * The Qlogic drivers seem be happy not to use a tag,
   1967 		 * but this breaks for some devices (IBM drives).
   1968 		 */
   1969 		if (XS_CANTAG(xs)) {
   1970 			t2reqp->req_flags = XS_KINDOF_TAG(xs);
   1971 		} else {
   1972 			if (XS_CDBP(xs)[0] == 0x3)	/* REQUEST SENSE */
   1973 				t2reqp->req_flags = REQFLAG_HTAG;
   1974 			else
   1975 				t2reqp->req_flags = REQFLAG_OTAG;
   1976 		}
   1977 	} else {
   1978 		sdparam *sdp = (sdparam *)isp->isp_param;
   1979 		if ((sdp->isp_devparam[target].cur_dflags & DPARM_TQING) &&
   1980 		    XS_CANTAG(xs)) {
   1981 			reqp->req_flags = XS_KINDOF_TAG(xs);
   1982 		}
   1983 	}
   1984 	reqp->req_target = target | (XS_CHANNEL(xs) << 7);
   1985 	if (IS_SCSI(isp)) {
   1986 		reqp->req_lun_trn = XS_LUN(xs);
   1987 		reqp->req_cdblen = XS_CDBLEN(xs);
   1988 	} else {
   1989 #ifdef	ISP2100_SCCLUN
   1990 		t2reqp->req_scclun = XS_LUN(xs);
   1991 #else
   1992 		t2reqp->req_lun_trn = XS_LUN(xs);
   1993 #endif
   1994 	}
   1995 	MEMCPY(reqp->req_cdb, XS_CDBP(xs), XS_CDBLEN(xs));
   1996 
   1997 	reqp->req_time = XS_TIME(xs) / 1000;
   1998 	if (reqp->req_time == 0 && XS_TIME(xs))
   1999 		reqp->req_time = 1;
   2000 
   2001 	/*
   2002 	 * Always give a bit more leeway to commands after a bus reset.
   2003 	 * XXX: DOES NOT DISTINGUISH WHICH PORT MAY HAVE BEEN SYNCED
   2004 	 */
   2005 	if (isp->isp_sendmarker && reqp->req_time < 5) {
   2006 		reqp->req_time = 5;
   2007 	}
   2008 	if (isp_save_xs(isp, xs, &reqp->req_handle)) {
   2009 		IDPRINTF(2, ("%s: out of xflist pointers\n", isp->isp_name));
   2010 		XS_SETERR(xs, HBA_BOTCH);
   2011 		return (CMD_EAGAIN);
   2012 	}
   2013 	/*
   2014 	 * Set up DMA and/or do any bus swizzling of the request entry
   2015 	 * so that the Qlogic F/W understands what is being asked of it.
   2016  	*/
   2017 	i = ISP_DMASETUP(isp, xs, reqp, &iptr, optr);
   2018 	if (i != CMD_QUEUED) {
   2019 		isp_destroy_handle(isp, reqp->req_handle);
   2020 		/*
   2021 		 * dmasetup sets actual error in packet, and
   2022 		 * return what we were given to return.
   2023 		 */
   2024 		return (i);
   2025 	}
   2026 	XS_SETERR(xs, HBA_NOERROR);
   2027 	IDPRINTF(5, ("%s(%d.%d.%d): START cmd 0x%x datalen %d\n",
   2028 	    isp->isp_name, XS_CHANNEL(xs), target, XS_LUN(xs),
   2029 	    reqp->req_cdb[0], XS_XFRLEN(xs)));
   2030 	MemoryBarrier();
   2031 	ISP_ADD_REQUEST(isp, iptr);
   2032 	isp->isp_nactive++;
   2033 	if (isp->isp_sendmarker)
   2034 		isp->isp_sendmarker = 0;
   2035 	return (CMD_QUEUED);
   2036 #undef	reqp
   2037 #undef	t2reqp
   2038 }
   2039 
   2040 /*
   2041  * isp control
   2042  * Locks (ints blocked) assumed held.
   2043  */
   2044 
   2045 int
   2046 isp_control(isp, ctl, arg)
   2047 	struct ispsoftc *isp;
   2048 	ispctl_t ctl;
   2049 	void *arg;
   2050 {
   2051 	ISP_SCSI_XFER_T *xs;
   2052 	mbreg_t mbs;
   2053 	int bus, tgt;
   2054 	u_int32_t handle;
   2055 
   2056 	switch (ctl) {
   2057 	default:
   2058 		PRINTF("%s: isp_control unknown control op %x\n",
   2059 		    isp->isp_name, ctl);
   2060 		break;
   2061 
   2062 	case ISPCTL_RESET_BUS:
   2063 		/*
   2064 		 * Issue a bus reset.
   2065 		 */
   2066 		mbs.param[0] = MBOX_BUS_RESET;
   2067 		if (IS_SCSI(isp)) {
   2068 			mbs.param[1] =
   2069 			    ((sdparam *) isp->isp_param)->isp_bus_reset_delay;
   2070 			if (mbs.param[1] < 2)
   2071 				mbs.param[1] = 2;
   2072 			bus = *((int *) arg);
   2073 			mbs.param[2] = bus;
   2074 		} else {
   2075 			mbs.param[1] = 10;
   2076 			mbs.param[2] = 0;
   2077 			bus = 0;
   2078 		}
   2079 		isp->isp_sendmarker = 1 << bus;
   2080 		isp_mboxcmd(isp, &mbs);
   2081 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
   2082 			isp_dumpregs(isp, "isp_control SCSI bus reset failed");
   2083 			break;
   2084 		}
   2085 		CFGPRINTF("%s: driver initiated bus reset of bus %d\n",
   2086 		    isp->isp_name, bus);
   2087 		return (0);
   2088 
   2089 	case ISPCTL_RESET_DEV:
   2090 		tgt = (*((int *) arg)) & 0xffff;
   2091 		bus = (*((int *) arg)) >> 16;
   2092 		mbs.param[0] = MBOX_ABORT_TARGET;
   2093 		mbs.param[1] = (tgt << 8) | (bus << 15);
   2094 		mbs.param[2] = 3;	/* 'delay', in seconds */
   2095 		isp_mboxcmd(isp, &mbs);
   2096 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
   2097 			PRINTF("%s: isp_control MBOX_RESET_DEV failure (code "
   2098 			    "%x)\n", isp->isp_name, mbs.param[0]);
   2099 			break;
   2100 		}
   2101 		PRINTF("%s: Target %d on Bus %d Reset Succeeded\n",
   2102 		    isp->isp_name, tgt, bus);
   2103 		isp->isp_sendmarker = 1 << bus;
   2104 		return (0);
   2105 
   2106 	case ISPCTL_ABORT_CMD:
   2107 		xs = (ISP_SCSI_XFER_T *) arg;
   2108 		handle = isp_find_handle(isp, xs);
   2109 		if (handle == 0) {
   2110 			PRINTF("%s: isp_control- cannot find command to abort "
   2111 			    "in active list\n", isp->isp_name);
   2112 			break;
   2113 		}
   2114 		bus = XS_CHANNEL(xs);
   2115 		mbs.param[0] = MBOX_ABORT;
   2116 		if (IS_FC(isp)) {
   2117 #ifdef	ISP2100_SCCLUN
   2118 			mbs.param[1] = XS_TGT(xs) << 8;
   2119 			mbs.param[4] = 0;
   2120 			mbs.param[5] = 0;
   2121 			mbs.param[6] = XS_LUN(xs);
   2122 #else
   2123 			mbs.param[1] = XS_TGT(xs) << 8 | XS_LUN(xs);
   2124 #endif
   2125 		} else {
   2126 			mbs.param[1] =
   2127 			    (bus << 15) | (XS_TGT(xs) << 8) | XS_LUN(xs);
   2128 		}
   2129 		mbs.param[2] = handle >> 16;
   2130 		mbs.param[3] = handle & 0xffff;
   2131 		isp_mboxcmd(isp, &mbs);
   2132 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
   2133 			PRINTF("%s: isp_control MBOX_ABORT failure (code %x)\n",
   2134 			    isp->isp_name, mbs.param[0]);
   2135 			break;
   2136 		}
   2137 		PRINTF("%s: command for target %d lun %d was aborted\n",
   2138 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2139 		return (0);
   2140 
   2141 	case ISPCTL_UPDATE_PARAMS:
   2142 		isp_update(isp);
   2143 		return (0);
   2144 
   2145 	case ISPCTL_FCLINK_TEST:
   2146 		return (isp_fclink_test(isp, FC_FW_READY_DELAY));
   2147 #ifdef	ISP_TARGET_MODE
   2148 	case ISPCTL_ENABLE_LUN:
   2149 		return (isp_modify_lun, 1, arg));
   2150 
   2151 	case ISPCTL_MODIFY_LUN:
   2152 		return (isp_modify_lun, 0, arg));
   2153 #endif
   2154 	}
   2155 	return (-1);
   2156 }
   2157 
   2158 /*
   2159  * Interrupt Service Routine(s).
   2160  *
   2161  * External (OS) framework has done the appropriate locking,
   2162  * and the locking will be held throughout this function.
   2163  */
   2164 
   2165 int
   2166 isp_intr(arg)
   2167 	void *arg;
   2168 {
   2169 	ISP_SCSI_XFER_T *complist[RESULT_QUEUE_LEN], *xs;
   2170 	struct ispsoftc *isp = arg;
   2171 	u_int16_t iptr, optr;
   2172 	u_int16_t isr, isrb, sema;
   2173 	int i, nlooked = 0, ndone = 0;
   2174 
   2175 	/*
   2176 	 * Well, if we've disabled interrupts, we may get a case where
   2177 	 * isr isn't set, but sema is. In any case, debounce isr reads.
   2178 	 */
   2179 	do {
   2180 		isr = ISP_READ(isp, BIU_ISR);
   2181 		isrb = ISP_READ(isp, BIU_ISR);
   2182 	} while (isr != isrb);
   2183 	sema = ISP_READ(isp, BIU_SEMA) & 0x1;
   2184 	IDPRINTF(5, ("%s: isp_intr isr %x sem %x\n", isp->isp_name, isr, sema));
   2185 	if (isr == 0) {
   2186 		return (0);
   2187 	}
   2188 	if (!INT_PENDING(isp, isr)) {
   2189 		IDPRINTF(4, ("%s: isp_intr isr=%x\n", isp->isp_name, isr));
   2190 		return (0);
   2191 	}
   2192 	if (isp->isp_state != ISP_RUNSTATE) {
   2193 		IDPRINTF(3, ("%s: interrupt (isr=%x,sema=%x) when not ready\n",
   2194 		    isp->isp_name, isr, sema));
   2195 		ISP_WRITE(isp, INMAILBOX5, ISP_READ(isp, OUTMAILBOX5));
   2196 		ISP_WRITE(isp, HCCR, HCCR_CMD_CLEAR_RISC_INT);
   2197 		ISP_WRITE(isp, BIU_SEMA, 0);
   2198 		ENABLE_INTS(isp);
   2199 		return (1);
   2200 	}
   2201 
   2202 	if (sema) {
   2203 		u_int16_t mbox = ISP_READ(isp, OUTMAILBOX0);
   2204 		if (mbox & 0x4000) {
   2205 			IDPRINTF(3, ("%s: Command Mbox 0x%x\n",
   2206 			    isp->isp_name, mbox));
   2207 		} else {
   2208 			u_int32_t fhandle = isp_parse_async(isp, (int) mbox);
   2209 			IDPRINTF(3, ("%s: Async Mbox 0x%x\n",
   2210 			    isp->isp_name, mbox));
   2211 			if (fhandle > 0) {
   2212 				isp_fastpost_complete(isp, fhandle);
   2213 			}
   2214 		}
   2215 		ISP_WRITE(isp, BIU_SEMA, 0);
   2216 		ISP_WRITE(isp, HCCR, HCCR_CMD_CLEAR_RISC_INT);
   2217 		ENABLE_INTS(isp);
   2218 		return (1);
   2219 	}
   2220 
   2221 	/*
   2222 	 * You *must* read OUTMAILBOX5 prior to clearing the RISC interrupt.
   2223 	 */
   2224 	optr = isp->isp_residx;
   2225 	iptr = ISP_READ(isp, OUTMAILBOX5);
   2226 	ISP_WRITE(isp, HCCR, HCCR_CMD_CLEAR_RISC_INT);
   2227 	if (optr == iptr) {
   2228 		IDPRINTF(4, ("why intr? isr %x iptr %x optr %x\n",
   2229 		    isr, optr, iptr));
   2230 	}
   2231 
   2232 	while (optr != iptr) {
   2233 		ispstatusreq_t *sp;
   2234 		u_int16_t oop;
   2235 		int buddaboom = 0;
   2236 
   2237 		sp = (ispstatusreq_t *) ISP_QUEUE_ENTRY(isp->isp_result, optr);
   2238 		oop = optr;
   2239 		optr = ISP_NXT_QENTRY(optr, RESULT_QUEUE_LEN);
   2240 		nlooked++;
   2241 		MemoryBarrier();
   2242 		/*
   2243 		 * Do any appropriate unswizzling of what the Qlogic f/w has
   2244 		 * written into memory so it makes sense to us.
   2245 		 */
   2246 		ISP_UNSWIZZLE_RESPONSE(isp, sp);
   2247 		if (sp->req_header.rqs_entry_type != RQSTYPE_RESPONSE) {
   2248 			if (isp_handle_other_response(isp, sp, &optr) == 0) {
   2249 				ISP_WRITE(isp, INMAILBOX5, optr);
   2250 				continue;
   2251 			}
   2252 			/*
   2253 			 * It really has to be a bounced request just copied
   2254 			 * from the request queue to the response queue. If
   2255 			 * not, something bad has happened.
   2256 			 */
   2257 			if (sp->req_header.rqs_entry_type != RQSTYPE_REQUEST) {
   2258 				ISP_WRITE(isp, INMAILBOX5, optr);
   2259 				PRINTF("%s: not RESPONSE in RESPONSE Queue "
   2260 				    "(type 0x%x) @ idx %d (next %d)\n",
   2261 				    isp->isp_name,
   2262 				    sp->req_header.rqs_entry_type, oop, optr);
   2263 				continue;
   2264 			}
   2265 			buddaboom = 1;
   2266 		}
   2267 
   2268 		if (sp->req_header.rqs_flags & 0xf) {
   2269 #define	_RQS_OFLAGS	\
   2270 	~(RQSFLAG_CONTINUATION|RQSFLAG_FULL|RQSFLAG_BADHEADER|RQSFLAG_BADPACKET)
   2271 			if (sp->req_header.rqs_flags & RQSFLAG_CONTINUATION) {
   2272 				IDPRINTF(3, ("%s: continuation segment\n",
   2273 				    isp->isp_name));
   2274 				ISP_WRITE(isp, INMAILBOX5, optr);
   2275 				continue;
   2276 			}
   2277 			if (sp->req_header.rqs_flags & RQSFLAG_FULL) {
   2278 				IDPRINTF(2, ("%s: internal queues full\n",
   2279 				    isp->isp_name));
   2280 				/*
   2281 				 * We'll synthesize a QUEUE FULL message below.
   2282 				 */
   2283 			}
   2284 			if (sp->req_header.rqs_flags & RQSFLAG_BADHEADER) {
   2285 				PRINTF("%s: bad header\n", isp->isp_name);
   2286 				buddaboom++;
   2287 			}
   2288 			if (sp->req_header.rqs_flags & RQSFLAG_BADPACKET) {
   2289 				PRINTF("%s: bad request packet\n",
   2290 				    isp->isp_name);
   2291 				buddaboom++;
   2292 			}
   2293 			if (sp->req_header.rqs_flags & _RQS_OFLAGS) {
   2294 				PRINTF("%s: unknown flags in response (0x%x)\n",
   2295 				    isp->isp_name, sp->req_header.rqs_flags);
   2296 				buddaboom++;
   2297 			}
   2298 #undef	_RQS_OFLAGS
   2299 		}
   2300 		if (sp->req_handle > isp->isp_maxcmds || sp->req_handle < 1) {
   2301 			PRINTF("%s: bad request handle %d\n", isp->isp_name,
   2302 			    sp->req_handle);
   2303 			ISP_WRITE(isp, INMAILBOX5, optr);
   2304 			continue;
   2305 		}
   2306 		xs = isp_find_xs(isp, sp->req_handle);
   2307 		if (xs == NULL) {
   2308 			PRINTF("%s: NULL xs in xflist (handle 0x%x)\n",
   2309 			    isp->isp_name, sp->req_handle);
   2310 			ISP_WRITE(isp, INMAILBOX5, optr);
   2311 			continue;
   2312 		}
   2313 		isp_destroy_handle(isp, sp->req_handle);
   2314 		if (sp->req_status_flags & RQSTF_BUS_RESET) {
   2315 			isp->isp_sendmarker |= (1 << XS_CHANNEL(xs));
   2316 		}
   2317 		if (buddaboom) {
   2318 			XS_SETERR(xs, HBA_BOTCH);
   2319 		}
   2320 		XS_STS(xs) = sp->req_scsi_status & 0xff;
   2321 		if (IS_SCSI(isp)) {
   2322 			if (sp->req_state_flags & RQSF_GOT_SENSE) {
   2323 				MEMCPY(XS_SNSP(xs), sp->req_sense_data,
   2324 					XS_SNSLEN(xs));
   2325 				XS_SNS_IS_VALID(xs);
   2326 			}
   2327 			/*
   2328 			 * A new synchronous rate was negotiated for this
   2329 			 * target. Mark state such that we'll go look up
   2330 			 * that which has changed later.
   2331 			 */
   2332 			if (sp->req_status_flags & RQSTF_NEGOTIATION) {
   2333 				sdparam *sdp = isp->isp_param;
   2334 				sdp += XS_CHANNEL(xs);
   2335 				sdp->isp_devparam[XS_TGT(xs)].dev_refresh = 1;
   2336 				isp->isp_update |= (1 << XS_CHANNEL(xs));
   2337 			}
   2338 		} else {
   2339 			if (XS_STS(xs) == SCSI_CHECK) {
   2340 				XS_SNS_IS_VALID(xs);
   2341 				MEMCPY(XS_SNSP(xs), sp->req_sense_data,
   2342 					XS_SNSLEN(xs));
   2343 				sp->req_state_flags |= RQSF_GOT_SENSE;
   2344 			}
   2345 		}
   2346 		if (XS_NOERR(xs) && XS_STS(xs) == SCSI_BUSY) {
   2347 			XS_SETERR(xs, HBA_TGTBSY);
   2348 		}
   2349 
   2350 		if (sp->req_header.rqs_entry_type == RQSTYPE_RESPONSE) {
   2351 			if (XS_NOERR(xs)) {
   2352 			    if (sp->req_completion_status != RQCS_COMPLETE) {
   2353 				isp_parse_status(isp, sp, xs);
   2354 			    } else {
   2355 				XS_SETERR(xs, HBA_NOERROR);
   2356 			    }
   2357 			}
   2358 		} else if (sp->req_header.rqs_entry_type == RQSTYPE_REQUEST) {
   2359 			if (sp->req_header.rqs_flags & RQSFLAG_FULL) {
   2360 				/*
   2361 				 * Force Queue Full status.
   2362 				 */
   2363 				XS_STS(xs) = SCSI_QFULL;
   2364 				XS_SETERR(xs, HBA_NOERROR);
   2365 			} else if (XS_NOERR(xs)) {
   2366 				XS_SETERR(xs, HBA_BOTCH);
   2367 			}
   2368 		} else {
   2369 			PRINTF("%s: unhandled respose queue type 0x%x\n",
   2370 			    isp->isp_name, sp->req_header.rqs_entry_type);
   2371 			if (XS_NOERR(xs)) {
   2372 				XS_SETERR(xs, HBA_BOTCH);
   2373 			}
   2374 		}
   2375 		if (IS_SCSI(isp)) {
   2376 			XS_RESID(xs) = sp->req_resid;
   2377 		} else if (sp->req_scsi_status & RQCS_RU) {
   2378 			XS_RESID(xs) = sp->req_resid;
   2379 			IDPRINTF(4, ("%s: cnt %d rsd %d\n", isp->isp_name,
   2380 				XS_XFRLEN(xs), sp->req_resid));
   2381 		}
   2382 		if (XS_XFRLEN(xs)) {
   2383 			ISP_DMAFREE(isp, xs, sp->req_handle);
   2384 		}
   2385 		/*
   2386 		 * XXX: If we have a check condition, but no Sense Data,
   2387 		 * XXX: mark it as an error (ARQ failed). We need to
   2388 		 * XXX: to do a more distinct job because there may
   2389 		 * XXX: cases where ARQ is disabled.
   2390 		 */
   2391 		if (XS_STS(xs) == SCSI_CHECK && !(XS_IS_SNS_VALID(xs))) {
   2392 			if (XS_NOERR(xs)) {
   2393 				PRINTF("%s: ARQ failure for target %d lun %d\n",
   2394 				    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2395 				XS_SETERR(xs, HBA_ARQFAIL);
   2396 			}
   2397 		}
   2398 		if ((isp->isp_dblev >= 5) ||
   2399 		    (isp->isp_dblev > 2 && !XS_NOERR(xs))) {
   2400 			PRINTF("%s(%d.%d): FIN dl%d resid%d STS %x",
   2401 			    isp->isp_name, XS_TGT(xs), XS_LUN(xs),
   2402 			    XS_XFRLEN(xs), XS_RESID(xs), XS_STS(xs));
   2403 			if (sp->req_state_flags & RQSF_GOT_SENSE) {
   2404 				PRINTF(" Skey: %x", XS_SNSKEY(xs));
   2405 				if (!(XS_IS_SNS_VALID(xs))) {
   2406 					PRINTF(" BUT NOT SET");
   2407 				}
   2408 			}
   2409 			PRINTF(" XS_ERR=0x%x\n", (unsigned int) XS_ERR(xs));
   2410 		}
   2411 
   2412 		if (isp->isp_nactive > 0)
   2413 		    isp->isp_nactive--;
   2414 		complist[ndone++] = xs;	/* defer completion call until later */
   2415 	}
   2416 
   2417 	/*
   2418 	 * If we looked at any commands, then it's valid to find out
   2419 	 * what the outpointer is. It also is a trigger to update the
   2420 	 * ISP's notion of what we've seen so far.
   2421 	 */
   2422 	if (nlooked) {
   2423 		ISP_WRITE(isp, INMAILBOX5, optr);
   2424 		isp->isp_reqodx = ISP_READ(isp, OUTMAILBOX4);
   2425 	}
   2426 	isp->isp_residx = optr;
   2427 	for (i = 0; i < ndone; i++) {
   2428 		xs = complist[i];
   2429 		if (xs) {
   2430 			XS_CMD_DONE(xs);
   2431 		}
   2432 	}
   2433 	ENABLE_INTS(isp);
   2434 	return (1);
   2435 }
   2436 
   2437 /*
   2438  * Support routines.
   2439  */
   2440 
   2441 static int
   2442 isp_parse_async(isp, mbox)
   2443 	struct ispsoftc *isp;
   2444 	int mbox;
   2445 {
   2446 	int bus;
   2447 	u_int32_t fast_post_handle = 0;
   2448 
   2449 	/*
   2450  	 * It is not documented anywhere that bus is always in OUTMAILBOX6
   2451 	 * for dual bus cards- and we don't have the h/w to prove it either,
   2452 	 * So we'll just assume......
   2453 	 */
   2454 	if (IS_1080(isp) || IS_12X0(isp)) {
   2455 		bus = ISP_READ(isp, OUTMAILBOX6);
   2456 	} else {
   2457 		bus = 0;
   2458 	}
   2459 
   2460 	switch (mbox) {
   2461 	case MBOX_COMMAND_COMPLETE:	/* sometimes these show up */
   2462 		break;
   2463 	case ASYNC_BUS_RESET:
   2464 		isp->isp_sendmarker = (1 << bus);
   2465 #ifdef	ISP_TARGET_MODE
   2466 		isp_target_async(isp, bus, ASYNC_BUS_RESET);
   2467 #endif
   2468 		isp_async(isp, ISPASYNC_BUS_RESET, &bus);
   2469 		break;
   2470 	case ASYNC_SYSTEM_ERROR:
   2471 		mbox = ISP_READ(isp, OUTMAILBOX1);
   2472 		PRINTF("%s: Internal FW Error @ RISC Addr 0x%x\n",
   2473 		    isp->isp_name, mbox);
   2474 		isp_restart(isp);
   2475 		/* no point continuing after this */
   2476 		return (-1);
   2477 
   2478 	case ASYNC_RQS_XFER_ERR:
   2479 		PRINTF("%s: Request Queue Transfer Error\n", isp->isp_name);
   2480 		break;
   2481 
   2482 	case ASYNC_RSP_XFER_ERR:
   2483 		PRINTF("%s: Response Queue Transfer Error\n", isp->isp_name);
   2484 		break;
   2485 
   2486 	case ASYNC_QWAKEUP:
   2487 		/*
   2488 		 * We've just been notified that the Queue has woken up.
   2489 		 * We don't need to be chatty about this- just unlatch things
   2490 		 * and move on.
   2491 		 */
   2492 		mbox = ISP_READ(isp, OUTMAILBOX4);
   2493 		break;
   2494 
   2495 	case ASYNC_TIMEOUT_RESET:
   2496 		PRINTF("%s: timeout initiated SCSI bus reset of bus %d\n",
   2497 		    isp->isp_name, bus);
   2498 		isp->isp_sendmarker = (1 << bus);
   2499 #ifdef	ISP_TARGET_MODE
   2500 		isp_target_async(isp, bus, ASYNC_TIMEOUT_RESET);
   2501 #endif
   2502 		break;
   2503 
   2504 	case ASYNC_DEVICE_RESET:
   2505 		PRINTF("%s: device reset on bus %d\n", isp->isp_name, bus);
   2506 		isp->isp_sendmarker = 1 << bus;
   2507 #ifdef	ISP_TARGET_MODE
   2508 		isp_target_async(isp, bus, ASYNC_DEVICE_RESET);
   2509 #endif
   2510 		break;
   2511 
   2512 	case ASYNC_EXTMSG_UNDERRUN:
   2513 		PRINTF("%s: extended message underrun\n", isp->isp_name);
   2514 		break;
   2515 
   2516 	case ASYNC_SCAM_INT:
   2517 		PRINTF("%s: SCAM interrupt\n", isp->isp_name);
   2518 		break;
   2519 
   2520 	case ASYNC_HUNG_SCSI:
   2521 		PRINTF("%s: stalled SCSI Bus after DATA Overrun\n",
   2522 		    isp->isp_name);
   2523 		/* XXX: Need to issue SCSI reset at this point */
   2524 		break;
   2525 
   2526 	case ASYNC_KILLED_BUS:
   2527 		PRINTF("%s: SCSI Bus reset after DATA Overrun\n",
   2528 		    isp->isp_name);
   2529 		break;
   2530 
   2531 	case ASYNC_BUS_TRANSIT:
   2532 		mbox = ISP_READ(isp, OUTMAILBOX2);
   2533 		switch (mbox & 0x1c00) {
   2534 		case SXP_PINS_LVD_MODE:
   2535 			PRINTF("%s: Transition to LVD mode\n", isp->isp_name);
   2536 			((sdparam *)isp->isp_param)->isp_diffmode = 0;
   2537 			((sdparam *)isp->isp_param)->isp_ultramode = 0;
   2538 			((sdparam *)isp->isp_param)->isp_lvdmode = 1;
   2539 			break;
   2540 		case SXP_PINS_HVD_MODE:
   2541 			PRINTF("%s: Transition to Differential mode\n",
   2542 			    isp->isp_name);
   2543 			((sdparam *)isp->isp_param)->isp_diffmode = 1;
   2544 			((sdparam *)isp->isp_param)->isp_ultramode = 0;
   2545 			((sdparam *)isp->isp_param)->isp_lvdmode = 0;
   2546 			break;
   2547 		case SXP_PINS_SE_MODE:
   2548 			PRINTF("%s: Transition to Single Ended mode\n",
   2549 			    isp->isp_name);
   2550 			((sdparam *)isp->isp_param)->isp_diffmode = 0;
   2551 			((sdparam *)isp->isp_param)->isp_ultramode = 1;
   2552 			((sdparam *)isp->isp_param)->isp_lvdmode = 0;
   2553 			break;
   2554 		default:
   2555 			PRINTF("%s: Transition to unknown mode 0x%x\n",
   2556 			    isp->isp_name, mbox);
   2557 			break;
   2558 		}
   2559 		/*
   2560 		 * XXX: Set up to renegotiate again!
   2561 		 */
   2562 		/* Can only be for a 1080... */
   2563 		isp->isp_sendmarker = (1 << bus);
   2564 		break;
   2565 
   2566 	case ASYNC_CMD_CMPLT:
   2567 		fast_post_handle = (ISP_READ(isp, OUTMAILBOX2) << 16) |
   2568 		    ISP_READ(isp, OUTMAILBOX1);
   2569 		IDPRINTF(3, ("%s: fast post completion of %u\n", isp->isp_name,
   2570 		    fast_post_handle));
   2571 		break;
   2572 
   2573 	case ASYNC_CTIO_DONE:
   2574 		/* Should only occur when Fast Posting Set for 2100s */
   2575 		PRINTF("%s: CTIO done\n", isp->isp_name);
   2576 		break;
   2577 
   2578 	case ASYNC_LIP_OCCURRED:
   2579 		((fcparam *) isp->isp_param)->isp_lipseq =
   2580 		    ISP_READ(isp, OUTMAILBOX1);
   2581 		((fcparam *) isp->isp_param)->isp_fwstate = FW_CONFIG_WAIT;
   2582 		((fcparam *) isp->isp_param)->isp_loopstate = LOOP_LIP_RCVD;
   2583 		isp->isp_sendmarker = 1;
   2584 		isp_mark_getpdb_all(isp);
   2585 		IDPRINTF(1, ("%s: LIP occurred\n", isp->isp_name));
   2586 		break;
   2587 
   2588 	case ASYNC_LOOP_UP:
   2589 		isp->isp_sendmarker = 1;
   2590 		((fcparam *) isp->isp_param)->isp_fwstate = FW_CONFIG_WAIT;
   2591 		((fcparam *) isp->isp_param)->isp_loopstate = LOOP_LIP_RCVD;
   2592 		isp_mark_getpdb_all(isp);
   2593 		isp_async(isp, ISPASYNC_LOOP_UP, NULL);
   2594 		break;
   2595 
   2596 	case ASYNC_LOOP_DOWN:
   2597 		isp->isp_sendmarker = 1;
   2598 		((fcparam *) isp->isp_param)->isp_fwstate = FW_CONFIG_WAIT;
   2599 		((fcparam *) isp->isp_param)->isp_loopstate = LOOP_NIL;
   2600 		isp_mark_getpdb_all(isp);
   2601 		isp_async(isp, ISPASYNC_LOOP_DOWN, NULL);
   2602 		break;
   2603 
   2604 	case ASYNC_LOOP_RESET:
   2605 		isp->isp_sendmarker = 1 << bus;
   2606 		((fcparam *) isp->isp_param)->isp_fwstate = FW_CONFIG_WAIT;
   2607 		((fcparam *) isp->isp_param)->isp_loopstate = LOOP_NIL;
   2608 		isp_mark_getpdb_all(isp);
   2609 		PRINTF("%s: Loop RESET\n", isp->isp_name);
   2610 #ifdef	ISP_TARGET_MODE
   2611 		isp_target_async(isp, bus, ASYNC_LOOP_RESET);
   2612 #endif
   2613 		break;
   2614 
   2615 	case ASYNC_PDB_CHANGED:
   2616 		isp->isp_sendmarker = 1;
   2617 		((fcparam *) isp->isp_param)->isp_loopstate = LOOP_PDB_RCVD;
   2618 		isp_mark_getpdb_all(isp);
   2619 		IDPRINTF(2, ("%s: Port Database Changed\n", isp->isp_name));
   2620 		break;
   2621 
   2622 	case ASYNC_CHANGE_NOTIFY:
   2623 		isp_mark_getpdb_all(isp);
   2624 		/*
   2625 		 * Not correct, but it will force us to rescan the loop.
   2626 		 */
   2627 		((fcparam *) isp->isp_param)->isp_loopstate = LOOP_PDB_RCVD;
   2628 		isp_async(isp, ISPASYNC_CHANGE_NOTIFY, NULL);
   2629 		break;
   2630 
   2631 	default:
   2632 		PRINTF("%s: unknown async code 0x%x\n", isp->isp_name, mbox);
   2633 		break;
   2634 	}
   2635 	return (fast_post_handle);
   2636 }
   2637 
   2638 /*
   2639  * Handle other response entries. A pointer to the request queue output
   2640  * index is here in case we want to eat several entries at once, although
   2641  * this is not used currently.
   2642  */
   2643 
   2644 static int
   2645 isp_handle_other_response(isp, sp, optrp)
   2646 	struct ispsoftc *isp;
   2647 	ispstatusreq_t *sp;
   2648 	u_int16_t *optrp;
   2649 {
   2650 	switch (sp->req_header.rqs_entry_type) {
   2651 	case RQSTYPE_ATIO:
   2652 	case RQSTYPE_CTIO0:
   2653 	case RQSTYPE_ENABLE_LUN:
   2654 	case RQSTYPE_MODIFY_LUN:
   2655 	case RQSTYPE_NOTIFY:
   2656 	case RQSTYPE_NOTIFY_ACK:
   2657 	case RQSTYPE_CTIO1:
   2658 	case RQSTYPE_ATIO2:
   2659 	case RQSTYPE_CTIO2:
   2660 	case RQSTYPE_CTIO3:
   2661 #ifdef	ISP_TARGET_MODE
   2662 		return (isp_target_entry(isp, sp));
   2663 #else
   2664 		/* FALLTHROUGH */
   2665 #endif
   2666 	case RQSTYPE_REQUEST:
   2667 	default:
   2668 		PRINTF("%s: unhandled response type 0x%x\n", isp->isp_name,
   2669 		    sp->req_header.rqs_entry_type);
   2670 		return (-1);
   2671 	}
   2672 }
   2673 
   2674 static void
   2675 isp_parse_status(isp, sp, xs)
   2676 	struct ispsoftc *isp;
   2677 	ispstatusreq_t *sp;
   2678 	ISP_SCSI_XFER_T *xs;
   2679 {
   2680 	switch (sp->req_completion_status) {
   2681 	case RQCS_COMPLETE:
   2682 		XS_SETERR(xs, HBA_NOERROR);
   2683 		return;
   2684 
   2685 	case RQCS_INCOMPLETE:
   2686 		if ((sp->req_state_flags & RQSF_GOT_TARGET) == 0) {
   2687 			IDPRINTF(3, ("%s: Selection Timeout for target %d\n",
   2688 			    isp->isp_name, XS_TGT(xs)));
   2689 			XS_SETERR(xs, HBA_SELTIMEOUT);
   2690 			return;
   2691 		}
   2692 		PRINTF("%s: command incomplete for target %d lun %d, state "
   2693 		    "0x%x\n", isp->isp_name, XS_TGT(xs), XS_LUN(xs),
   2694 		    sp->req_state_flags);
   2695 		break;
   2696 
   2697 	case RQCS_DMA_ERROR:
   2698 		PRINTF("%s: DMA error for command on target %d, lun %d\n",
   2699 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2700 		break;
   2701 
   2702 	case RQCS_TRANSPORT_ERROR:
   2703 		PRINTF("%s: transport error\n", isp->isp_name);
   2704 		isp_prtstst(sp);
   2705 		break;
   2706 
   2707 	case RQCS_RESET_OCCURRED:
   2708 		IDPRINTF(2, ("%s: bus reset destroyed command for target %d "
   2709 		    "lun %d\n", isp->isp_name, XS_TGT(xs), XS_LUN(xs)));
   2710 		/*
   2711 		 * XXX: Get port number for bus
   2712 		 */
   2713 		isp->isp_sendmarker = 3;
   2714 		XS_SETERR(xs, HBA_BUSRESET);
   2715 		return;
   2716 
   2717 	case RQCS_ABORTED:
   2718 		PRINTF("%s: command aborted for target %d lun %d\n",
   2719 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2720 		/*
   2721 		 * XXX: Get port number for bus
   2722 		 */
   2723 		isp->isp_sendmarker = 3;
   2724 		XS_SETERR(xs, HBA_ABORTED);
   2725 		return;
   2726 
   2727 	case RQCS_TIMEOUT:
   2728 		IDPRINTF(2, ("%s: command timed out for target %d lun %d\n",
   2729 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs)));
   2730 		XS_SETERR(xs, HBA_CMDTIMEOUT);
   2731 		return;
   2732 
   2733 	case RQCS_DATA_OVERRUN:
   2734 		if (IS_FC(isp)) {
   2735 			XS_RESID(xs) = sp->req_resid;
   2736 			break;
   2737 		}
   2738 		XS_SETERR(xs, HBA_DATAOVR);
   2739 		return;
   2740 
   2741 	case RQCS_COMMAND_OVERRUN:
   2742 		PRINTF("%s: command overrun for command on target %d, lun %d\n",
   2743 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2744 		break;
   2745 
   2746 	case RQCS_STATUS_OVERRUN:
   2747 		PRINTF("%s: status overrun for command on target %d, lun %d\n",
   2748 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2749 		break;
   2750 
   2751 	case RQCS_BAD_MESSAGE:
   2752 		PRINTF("%s: message not COMMAND COMPLETE after status on "
   2753 		    "target %d, lun %d\n", isp->isp_name, XS_TGT(xs),
   2754 		    XS_LUN(xs));
   2755 		break;
   2756 
   2757 	case RQCS_NO_MESSAGE_OUT:
   2758 		PRINTF("%s: No MESSAGE OUT phase after selection on "
   2759 		    "target %d, lun %d\n", isp->isp_name, XS_TGT(xs),
   2760 		    XS_LUN(xs));
   2761 		break;
   2762 
   2763 	case RQCS_EXT_ID_FAILED:
   2764 		PRINTF("%s: EXTENDED IDENTIFY failed on target %d, lun %d\n",
   2765 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2766 		break;
   2767 
   2768 	case RQCS_IDE_MSG_FAILED:
   2769 		PRINTF("%s: target %d lun %d rejected INITIATOR DETECTED "
   2770 		    "ERROR message\n", isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2771 		break;
   2772 
   2773 	case RQCS_ABORT_MSG_FAILED:
   2774 		PRINTF("%s: target %d lun %d rejected ABORT message\n",
   2775 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2776 		break;
   2777 
   2778 	case RQCS_REJECT_MSG_FAILED:
   2779 		PRINTF("%s: target %d lun %d rejected MESSAGE REJECT message\n",
   2780 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2781 		break;
   2782 
   2783 	case RQCS_NOP_MSG_FAILED:
   2784 		PRINTF("%s: target %d lun %d rejected NOP message\n",
   2785 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2786 		break;
   2787 
   2788 	case RQCS_PARITY_ERROR_MSG_FAILED:
   2789 		PRINTF("%s: target %d lun %d rejected MESSAGE PARITY ERROR "
   2790 		    "message\n", isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2791 		break;
   2792 
   2793 	case RQCS_DEVICE_RESET_MSG_FAILED:
   2794 		PRINTF("%s: target %d lun %d rejected BUS DEVICE RESET "
   2795 		    "message\n", isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2796 		break;
   2797 
   2798 	case RQCS_ID_MSG_FAILED:
   2799 		PRINTF("%s: target %d lun %d rejected IDENTIFY "
   2800 		    "message\n", isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2801 		break;
   2802 
   2803 	case RQCS_UNEXP_BUS_FREE:
   2804 		PRINTF("%s: target %d lun %d had an unexpected bus free\n",
   2805 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2806 		break;
   2807 
   2808 	case RQCS_DATA_UNDERRUN:
   2809 		if (IS_FC(isp)) {
   2810 			XS_RESID(xs) = sp->req_resid;
   2811 			/* an UNDERRUN is not a botch ??? */
   2812 		}
   2813 		XS_SETERR(xs, HBA_NOERROR);
   2814 		return;
   2815 
   2816 	case RQCS_XACT_ERR1:
   2817 		PRINTF("%s: HBA attempted queued transaction with disconnect "
   2818 		    "not set for target %d lun %d\n", isp->isp_name, XS_TGT(xs),
   2819 		    XS_LUN(xs));
   2820 		break;
   2821 
   2822 	case RQCS_XACT_ERR2:
   2823 		PRINTF("%s: HBA attempted queued transaction to target "
   2824 		    "routine %d on target %d\n", isp->isp_name, XS_LUN(xs),
   2825 		    XS_TGT(xs));
   2826 		break;
   2827 
   2828 	case RQCS_XACT_ERR3:
   2829 		PRINTF("%s: HBA attempted queued transaction for target %d lun "
   2830 		    "%d when queueing disabled\n", isp->isp_name, XS_TGT(xs),
   2831 		    XS_LUN(xs));
   2832 		break;
   2833 
   2834 	case RQCS_BAD_ENTRY:
   2835 		PRINTF("%s: invalid IOCB entry type detected\n", isp->isp_name);
   2836 		break;
   2837 
   2838 	case RQCS_QUEUE_FULL:
   2839 		IDPRINTF(3, ("%s: internal queues full for target %d lun %d "
   2840 		    "status 0x%x\n", isp->isp_name, XS_TGT(xs), XS_LUN(xs),
   2841 		    XS_STS(xs)));
   2842 		/*
   2843 		 * If QFULL or some other status byte is set, then this
   2844 		 * isn't an error, per se.
   2845 		 */
   2846 		if (XS_STS(xs) != 0) {
   2847 			XS_SETERR(xs, HBA_NOERROR);
   2848 			return;
   2849 		}
   2850 		break;
   2851 
   2852 	case RQCS_PHASE_SKIPPED:
   2853 		PRINTF("%s: SCSI phase skipped (e.g., COMMAND COMPLETE w/o "
   2854 		    "STATUS phase) for target %d lun %d\n", isp->isp_name,
   2855 		    XS_TGT(xs), XS_LUN(xs));
   2856 		break;
   2857 
   2858 	case RQCS_ARQS_FAILED:
   2859 		PRINTF("%s: Auto Request Sense failed for target %d lun %d\n",
   2860 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2861 		XS_SETERR(xs, HBA_ARQFAIL);
   2862 		return;
   2863 
   2864 	case RQCS_WIDE_FAILED:
   2865 		PRINTF("%s: Wide Negotiation failed for target %d lun %d\n",
   2866 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2867 		if (IS_SCSI(isp)) {
   2868 			sdparam *sdp = isp->isp_param;
   2869 			sdp += XS_CHANNEL(xs);
   2870 			sdp->isp_devparam[XS_TGT(xs)].dev_flags &= ~DPARM_WIDE;
   2871 			sdp->isp_devparam[XS_TGT(xs)].dev_update = 1;
   2872 			isp->isp_update = XS_CHANNEL(xs)+1;
   2873 		}
   2874 		XS_SETERR(xs, HBA_NOERROR);
   2875 		return;
   2876 
   2877 	case RQCS_SYNCXFER_FAILED:
   2878 		PRINTF("%s: SDTR Message failed for target %d lun %d\n",
   2879 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2880 		if (IS_SCSI(isp)) {
   2881 			sdparam *sdp = isp->isp_param;
   2882 			sdp += XS_CHANNEL(xs);
   2883 			sdp->isp_devparam[XS_TGT(xs)].dev_flags &= ~DPARM_SYNC;
   2884 			sdp->isp_devparam[XS_TGT(xs)].dev_update = 1;
   2885 			isp->isp_update = XS_CHANNEL(xs)+1;
   2886 		}
   2887 		break;
   2888 
   2889 	case RQCS_LVD_BUSERR:
   2890 		PRINTF("%s: Bad LVD Bus condition while talking to target %d "
   2891 		    "lun %d\n", isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2892 		break;
   2893 
   2894 	case RQCS_PORT_UNAVAILABLE:
   2895 		/*
   2896 		 * No such port on the loop. Moral equivalent of SELTIMEO
   2897 		 */
   2898 		IDPRINTF(3, ("%s: Port Unavailable for target %d\n",
   2899 		    isp->isp_name, XS_TGT(xs)));
   2900 		XS_SETERR(xs, HBA_SELTIMEOUT);
   2901 		return;
   2902 
   2903 	case RQCS_PORT_LOGGED_OUT:
   2904 		/*
   2905 		 * It was there (maybe)- treat as a selection timeout.
   2906 		 */
   2907 		IDPRINTF(2, ("%s: port logout for target %d\n",
   2908 			isp->isp_name, XS_TGT(xs)));
   2909 		XS_SETERR(xs, HBA_SELTIMEOUT);
   2910 		return;
   2911 
   2912 	case RQCS_PORT_CHANGED:
   2913 		PRINTF("%s: port changed for target %d\n",
   2914 			isp->isp_name, XS_TGT(xs));
   2915 		break;
   2916 
   2917 	case RQCS_PORT_BUSY:
   2918 		PRINTF("%s: port busy for target %d\n",
   2919 			isp->isp_name, XS_TGT(xs));
   2920 		XS_SETERR(xs, HBA_TGTBSY);
   2921 		return;
   2922 
   2923 	default:
   2924 		PRINTF("%s: comp status %x\n", isp->isp_name,
   2925 		    sp->req_completion_status);
   2926 		break;
   2927 	}
   2928 	XS_SETERR(xs, HBA_BOTCH);
   2929 }
   2930 
   2931 static void
   2932 isp_fastpost_complete(isp, fph)
   2933 	struct ispsoftc *isp;
   2934 	u_int32_t fph;
   2935 {
   2936 	ISP_SCSI_XFER_T *xs;
   2937 
   2938 	if (fph < 1) {
   2939 		return;
   2940 	}
   2941 	xs = isp_find_xs(isp, fph);
   2942 	if (xs == NULL) {
   2943 		PRINTF("%s: command for fast posting handle 0x%x not found\n",
   2944 		    isp->isp_name, fph);
   2945 		return;
   2946 	}
   2947 	isp_destroy_handle(isp, fph);
   2948 
   2949 	/*
   2950 	 * Since we don't have a result queue entry item,
   2951 	 * we must believe that SCSI status is zero and
   2952 	 * that all data transferred.
   2953 	 */
   2954 	XS_RESID(xs) = 0;
   2955 	XS_STS(xs) = 0;
   2956 	if (XS_XFRLEN(xs)) {
   2957 		ISP_DMAFREE(isp, xs, fph);
   2958 	}
   2959 	XS_CMD_DONE(xs);
   2960 	if (isp->isp_nactive)
   2961 		isp->isp_nactive--;
   2962 }
   2963 
   2964 #define	HINIB(x)			((x) >> 0x4)
   2965 #define	LONIB(x)			((x)  & 0xf)
   2966 #define	MAKNIB(a, b)			(((a) << 4) | (b))
   2967 static u_int8_t mbpcnt[] = {
   2968 	MAKNIB(1, 1),	/* 0x00: MBOX_NO_OP */
   2969 	MAKNIB(5, 5),	/* 0x01: MBOX_LOAD_RAM */
   2970 	MAKNIB(2, 0),	/* 0x02: MBOX_EXEC_FIRMWARE */
   2971 	MAKNIB(5, 5),	/* 0x03: MBOX_DUMP_RAM */
   2972 	MAKNIB(3, 3),	/* 0x04: MBOX_WRITE_RAM_WORD */
   2973 	MAKNIB(2, 3),	/* 0x05: MBOX_READ_RAM_WORD */
   2974 	MAKNIB(6, 6),	/* 0x06: MBOX_MAILBOX_REG_TEST */
   2975 	MAKNIB(2, 3),	/* 0x07: MBOX_VERIFY_CHECKSUM	*/
   2976 	MAKNIB(1, 4),	/* 0x08: MBOX_ABOUT_FIRMWARE */
   2977 	MAKNIB(0, 0),	/* 0x09: */
   2978 	MAKNIB(0, 0),	/* 0x0a: */
   2979 	MAKNIB(0, 0),	/* 0x0b: */
   2980 	MAKNIB(0, 0),	/* 0x0c: */
   2981 	MAKNIB(0, 0),	/* 0x0d: */
   2982 	MAKNIB(1, 2),	/* 0x0e: MBOX_CHECK_FIRMWARE */
   2983 	MAKNIB(0, 0),	/* 0x0f: */
   2984 	MAKNIB(5, 5),	/* 0x10: MBOX_INIT_REQ_QUEUE */
   2985 	MAKNIB(6, 6),	/* 0x11: MBOX_INIT_RES_QUEUE */
   2986 	MAKNIB(4, 4),	/* 0x12: MBOX_EXECUTE_IOCB */
   2987 	MAKNIB(2, 2),	/* 0x13: MBOX_WAKE_UP	*/
   2988 	MAKNIB(1, 6),	/* 0x14: MBOX_STOP_FIRMWARE */
   2989 	MAKNIB(4, 4),	/* 0x15: MBOX_ABORT */
   2990 	MAKNIB(2, 2),	/* 0x16: MBOX_ABORT_DEVICE */
   2991 	MAKNIB(3, 3),	/* 0x17: MBOX_ABORT_TARGET */
   2992 	MAKNIB(3, 1),	/* 0x18: MBOX_BUS_RESET */
   2993 	MAKNIB(2, 3),	/* 0x19: MBOX_STOP_QUEUE */
   2994 	MAKNIB(2, 3),	/* 0x1a: MBOX_START_QUEUE */
   2995 	MAKNIB(2, 3),	/* 0x1b: MBOX_SINGLE_STEP_QUEUE */
   2996 	MAKNIB(2, 3),	/* 0x1c: MBOX_ABORT_QUEUE */
   2997 	MAKNIB(2, 4),	/* 0x1d: MBOX_GET_DEV_QUEUE_STATUS */
   2998 	MAKNIB(0, 0),	/* 0x1e: */
   2999 	MAKNIB(1, 3),	/* 0x1f: MBOX_GET_FIRMWARE_STATUS */
   3000 	MAKNIB(1, 4),	/* 0x20: MBOX_GET_INIT_SCSI_ID, MBOX_GET_LOOP_ID */
   3001 	MAKNIB(1, 3),	/* 0x21: MBOX_GET_SELECT_TIMEOUT */
   3002 	MAKNIB(1, 3),	/* 0x22: MBOX_GET_RETRY_COUNT	*/
   3003 	MAKNIB(1, 2),	/* 0x23: MBOX_GET_TAG_AGE_LIMIT */
   3004 	MAKNIB(1, 2),	/* 0x24: MBOX_GET_CLOCK_RATE */
   3005 	MAKNIB(1, 2),	/* 0x25: MBOX_GET_ACT_NEG_STATE */
   3006 	MAKNIB(1, 2),	/* 0x26: MBOX_GET_ASYNC_DATA_SETUP_TIME */
   3007 	MAKNIB(1, 3),	/* 0x27: MBOX_GET_PCI_PARAMS */
   3008 	MAKNIB(2, 4),	/* 0x28: MBOX_GET_TARGET_PARAMS */
   3009 	MAKNIB(2, 4),	/* 0x29: MBOX_GET_DEV_QUEUE_PARAMS */
   3010 	MAKNIB(1, 2),	/* 0x2a: MBOX_GET_RESET_DELAY_PARAMS */
   3011 	MAKNIB(0, 0),	/* 0x2b: */
   3012 	MAKNIB(0, 0),	/* 0x2c: */
   3013 	MAKNIB(0, 0),	/* 0x2d: */
   3014 	MAKNIB(0, 0),	/* 0x2e: */
   3015 	MAKNIB(0, 0),	/* 0x2f: */
   3016 	MAKNIB(2, 2),	/* 0x30: MBOX_SET_INIT_SCSI_ID */
   3017 	MAKNIB(2, 3),	/* 0x31: MBOX_SET_SELECT_TIMEOUT */
   3018 	MAKNIB(3, 3),	/* 0x32: MBOX_SET_RETRY_COUNT	*/
   3019 	MAKNIB(2, 2),	/* 0x33: MBOX_SET_TAG_AGE_LIMIT */
   3020 	MAKNIB(2, 2),	/* 0x34: MBOX_SET_CLOCK_RATE */
   3021 	MAKNIB(2, 2),	/* 0x35: MBOX_SET_ACT_NEG_STATE */
   3022 	MAKNIB(2, 2),	/* 0x36: MBOX_SET_ASYNC_DATA_SETUP_TIME */
   3023 	MAKNIB(3, 3),	/* 0x37: MBOX_SET_PCI_CONTROL_PARAMS */
   3024 	MAKNIB(4, 4),	/* 0x38: MBOX_SET_TARGET_PARAMS */
   3025 	MAKNIB(4, 4),	/* 0x39: MBOX_SET_DEV_QUEUE_PARAMS */
   3026 	MAKNIB(1, 2),	/* 0x3a: MBOX_SET_RESET_DELAY_PARAMS */
   3027 	MAKNIB(0, 0),	/* 0x3b: */
   3028 	MAKNIB(0, 0),	/* 0x3c: */
   3029 	MAKNIB(0, 0),	/* 0x3d: */
   3030 	MAKNIB(0, 0),	/* 0x3e: */
   3031 	MAKNIB(0, 0),	/* 0x3f: */
   3032 	MAKNIB(1, 2),	/* 0x40: MBOX_RETURN_BIOS_BLOCK_ADDR */
   3033 	MAKNIB(6, 1),	/* 0x41: MBOX_WRITE_FOUR_RAM_WORDS */
   3034 	MAKNIB(2, 3),	/* 0x42: MBOX_EXEC_BIOS_IOCB */
   3035 	MAKNIB(0, 0),	/* 0x43: */
   3036 	MAKNIB(0, 0),	/* 0x44: */
   3037 	MAKNIB(0, 0),	/* 0x45: */
   3038 	MAKNIB(0, 0),	/* 0x46: */
   3039 	MAKNIB(0, 0),	/* 0x47: */
   3040 	MAKNIB(0, 0),	/* 0x48: */
   3041 	MAKNIB(0, 0),	/* 0x49: */
   3042 	MAKNIB(2, 1),	/* 0x4a: MBOX_SET_FIRMWARE_FEATURES */
   3043 	MAKNIB(1, 2),	/* 0x4b: MBOX_GET_FIRMWARE_FEATURES */
   3044 	MAKNIB(0, 0),	/* 0x4c: */
   3045 	MAKNIB(0, 0),	/* 0x4d: */
   3046 	MAKNIB(0, 0),	/* 0x4e: */
   3047 	MAKNIB(0, 0),	/* 0x4f: */
   3048 	MAKNIB(0, 0),	/* 0x50: */
   3049 	MAKNIB(0, 0),	/* 0x51: */
   3050 	MAKNIB(0, 0),	/* 0x52: */
   3051 	MAKNIB(0, 0),	/* 0x53: */
   3052 	MAKNIB(8, 0),	/* 0x54: MBOX_EXEC_COMMAND_IOCB_A64 */
   3053 	MAKNIB(0, 0),	/* 0x55: */
   3054 	MAKNIB(0, 0),	/* 0x56: */
   3055 	MAKNIB(0, 0),	/* 0x57: */
   3056 	MAKNIB(0, 0),	/* 0x58: */
   3057 	MAKNIB(0, 0),	/* 0x59: */
   3058 	MAKNIB(0, 0),	/* 0x5a: */
   3059 	MAKNIB(0, 0),	/* 0x5b: */
   3060 	MAKNIB(0, 0),	/* 0x5c: */
   3061 	MAKNIB(0, 0),	/* 0x5d: */
   3062 	MAKNIB(0, 0),	/* 0x5e: */
   3063 	MAKNIB(0, 0),	/* 0x5f: */
   3064 	MAKNIB(8, 6),	/* 0x60: MBOX_INIT_FIRMWARE */
   3065 	MAKNIB(0, 0),	/* 0x61: */
   3066 	MAKNIB(2, 1),	/* 0x62: MBOX_INIT_LIP */
   3067 	MAKNIB(8, 1),	/* 0x63: MBOX_GET_FC_AL_POSITION_MAP */
   3068 	MAKNIB(8, 1),	/* 0x64: MBOX_GET_PORT_DB */
   3069 	MAKNIB(3, 1),	/* 0x65: MBOX_CLEAR_ACA */
   3070 	MAKNIB(3, 1),	/* 0x66: MBOX_TARGET_RESET */
   3071 	MAKNIB(3, 1),	/* 0x67: MBOX_CLEAR_TASK_SET */
   3072 	MAKNIB(3, 1),	/* 0x68: MBOX_ABORT_TASK_SET */
   3073 	MAKNIB(1, 2),	/* 0x69: MBOX_GET_FW_STATE */
   3074 	MAKNIB(2, 8),	/* 0x6a: MBOX_GET_PORT_NAME */
   3075 	MAKNIB(8, 1),	/* 0x6b: MBOX_GET_LINK_STATUS */
   3076 	MAKNIB(4, 4),	/* 0x6c: MBOX_INIT_LIP_RESET */
   3077 	MAKNIB(0, 0),	/* 0x6d: */
   3078 	MAKNIB(8, 2),	/* 0x6e: MBOX_SEND_SNS */
   3079 	MAKNIB(4, 3),	/* 0x6f: MBOX_FABRIC_LOGIN */
   3080 	MAKNIB(2, 1),	/* 0x70: MBOX_SEND_CHANGE_REQUEST */
   3081 	MAKNIB(2, 1),	/* 0x71: MBOX_FABRIC_LOGOUT */
   3082 	MAKNIB(4, 1)	/* 0x72: MBOX_INIT_LIP_LOGIN */
   3083 };
   3084 #define	NMBCOM	(sizeof (mbpcnt) / sizeof (mbpcnt[0]))
   3085 
   3086 static void
   3087 isp_mboxcmd(isp, mbp)
   3088 	struct ispsoftc *isp;
   3089 	mbreg_t *mbp;
   3090 {
   3091 	int outparam, inparam;
   3092 	int loops, dld = 0;
   3093 	u_int8_t opcode;
   3094 
   3095 	if (mbp->param[0] == ISP2100_SET_PCI_PARAM) {
   3096 		opcode = mbp->param[0] = MBOX_SET_PCI_PARAMETERS;
   3097 		inparam = 4;
   3098 		outparam = 4;
   3099 		goto command_known;
   3100 	} else if (mbp->param[0] > NMBCOM) {
   3101 		PRINTF("%s: bad command %x\n", isp->isp_name, mbp->param[0]);
   3102 		return;
   3103 	}
   3104 
   3105 	opcode = mbp->param[0];
   3106 	inparam = HINIB(mbpcnt[mbp->param[0]]);
   3107 	outparam =  LONIB(mbpcnt[mbp->param[0]]);
   3108 
   3109 	if (inparam == 0 && outparam == 0) {
   3110 		PRINTF("%s: no parameters for %x\n", isp->isp_name,
   3111 			mbp->param[0]);
   3112 		return;
   3113 	}
   3114 
   3115 
   3116 	/*
   3117 	 * Check for variants
   3118 	 */
   3119 #ifdef	ISP2100_SCCLUN
   3120 	if (IS_FC(isp)) {
   3121 		switch (mbp->param[0]) {
   3122 		case MBOX_ABORT:
   3123 			inparam = 7;
   3124 			break;
   3125 		case MBOX_ABORT_DEVICE:
   3126 		case MBOX_START_QUEUE:
   3127 		case MBOX_STOP_QUEUE:
   3128 		case MBOX_SINGLE_STEP_QUEUE:
   3129 		case MBOX_ABORT_QUEUE:
   3130 		case MBOX_GET_DEV_QUEUE_STATUS:
   3131 			inparam = 3;
   3132 			break;
   3133 		case MBOX_BUS_RESET:
   3134 			inparam = 2;
   3135 			break;
   3136 		default:
   3137 			break;
   3138 		}
   3139 	}
   3140 #endif
   3141 
   3142 command_known:
   3143 
   3144 	/*
   3145 	 * Set semaphore on mailbox registers to win any races to acquire them.
   3146 	 */
   3147 	ISP_WRITE(isp, BIU_SEMA, 1);
   3148 
   3149 	/*
   3150 	 * Qlogic Errata for the ISP2100 says that there is a necessary
   3151 	 * debounce between between writing the semaphore register
   3152 	 * and reading a mailbox register. I believe we're okay here.
   3153 	 */
   3154 
   3155 	/*
   3156 	 * Make sure we can send some words.
   3157 	 * Check to see if there's an async mbox event pending.
   3158 	 */
   3159 
   3160 	loops = MBOX_DELAY_COUNT;
   3161 	while ((ISP_READ(isp, HCCR) & HCCR_HOST_INT) != 0) {
   3162 		if (ISP_READ(isp, BIU_SEMA) & 1) {
   3163 			int fph;
   3164 			u_int16_t mbox = ISP_READ(isp, OUTMAILBOX0);
   3165 			/*
   3166 			 * We have a pending MBOX async event.
   3167 			 */
   3168 			if (mbox & 0x8000) {
   3169 				fph = isp_parse_async(isp, (int) mbox);
   3170 				IDPRINTF(5, ("%s: line %d, fph %d\n",
   3171 				    isp->isp_name, __LINE__, fph));
   3172 				ISP_WRITE(isp, BIU_SEMA, 0);
   3173 				ISP_WRITE(isp, HCCR, HCCR_CMD_CLEAR_RISC_INT);
   3174 				if (fph < 0) {
   3175 					return;
   3176 				} else if (fph > 0) {
   3177 					isp_fastpost_complete(isp, fph);
   3178 				}
   3179 				SYS_DELAY(100);
   3180 				goto command_known;
   3181 			}
   3182 			/*
   3183 			 * We have a pending MBOX completion? Might be
   3184 			 * from a previous command. We can't (sometimes)
   3185 			 * just clear HOST INTERRUPT, so we'll just silently
   3186 			 * eat this here.
   3187 			 */
   3188 			if (mbox & 0x4000) {
   3189 				IDPRINTF(5, ("%s: line %d, mbox 0x%x\n",
   3190 				    isp->isp_name, __LINE__, mbox));
   3191 				ISP_WRITE(isp, BIU_SEMA, 0);
   3192 				ISP_WRITE(isp, HCCR, HCCR_CMD_CLEAR_RISC_INT);
   3193 				SYS_DELAY(100);
   3194 				goto command_known;
   3195 			}
   3196 		}
   3197 		SYS_DELAY(100);
   3198 		if (--loops < 0) {
   3199 			if (dld++ > 10) {
   3200 				PRINTF("%s: isp_mboxcmd could not get command "
   3201 				    "started\n", isp->isp_name);
   3202 				return;
   3203 			}
   3204 			ISP_WRITE(isp, BIU_SEMA, 0);
   3205 			ISP_WRITE(isp, HCCR, HCCR_CMD_CLEAR_RISC_INT);
   3206 			goto command_known;
   3207 		}
   3208 	}
   3209 
   3210 	/*
   3211 	 * Write input parameters.
   3212 	 *
   3213 	 * Special case some of the setups for the dual port SCSI cards.
   3214 	 * XXX Eventually will be fixed by converting register write/read
   3215 	 * XXX counts to bitmasks.
   3216 	 */
   3217 	if (IS_12X0(isp)) {
   3218 		switch (opcode) {
   3219 		case MBOX_GET_RETRY_COUNT:
   3220 		case MBOX_SET_RETRY_COUNT:
   3221 			ISP_WRITE(isp, INMAILBOX7, mbp->param[7]);
   3222 			mbp->param[7] = 0;
   3223 			ISP_WRITE(isp, INMAILBOX6, mbp->param[6]);
   3224 			mbp->param[6] = 0;
   3225 			break;
   3226 		case MBOX_SET_ASYNC_DATA_SETUP_TIME:
   3227 		case MBOX_SET_ACT_NEG_STATE:
   3228 		case MBOX_SET_TAG_AGE_LIMIT:
   3229 		case MBOX_SET_SELECT_TIMEOUT:
   3230 			ISP_WRITE(isp, INMAILBOX2, mbp->param[2]);
   3231 			mbp->param[2] = 0;
   3232 			break;
   3233 		}
   3234 	}
   3235 
   3236 	switch (inparam) {
   3237 	case 8: ISP_WRITE(isp, INMAILBOX7, mbp->param[7]); mbp->param[7] = 0;
   3238 	case 7: ISP_WRITE(isp, INMAILBOX6, mbp->param[6]); mbp->param[6] = 0;
   3239 	case 6:
   3240 		/*
   3241 		 * The Qlogic 2100 cannot have registers 4 and 5 written to
   3242 		 * after initialization or BAD THINGS HAPPEN (tm).
   3243 		 */
   3244 		if (IS_SCSI(isp) || mbp->param[0] == MBOX_INIT_FIRMWARE)
   3245 			ISP_WRITE(isp, INMAILBOX5, mbp->param[5]);
   3246 		mbp->param[5] = 0;
   3247 	case 5:
   3248 		if (IS_SCSI(isp) || mbp->param[0] == MBOX_INIT_FIRMWARE)
   3249 			ISP_WRITE(isp, INMAILBOX4, mbp->param[4]);
   3250 		mbp->param[4] = 0;
   3251 	case 4: ISP_WRITE(isp, INMAILBOX3, mbp->param[3]); mbp->param[3] = 0;
   3252 	case 3: ISP_WRITE(isp, INMAILBOX2, mbp->param[2]); mbp->param[2] = 0;
   3253 	case 2: ISP_WRITE(isp, INMAILBOX1, mbp->param[1]); mbp->param[1] = 0;
   3254 	case 1: ISP_WRITE(isp, INMAILBOX0, mbp->param[0]); mbp->param[0] = 0;
   3255 	}
   3256 
   3257 	/*
   3258 	 * Clear RISC int condition.
   3259 	 */
   3260 	ISP_WRITE(isp, HCCR, HCCR_CMD_CLEAR_RISC_INT);
   3261 
   3262 	/*
   3263 	 * Clear semaphore on mailbox registers so that the Qlogic
   3264 	 * may update outgoing registers.
   3265 	 */
   3266 	ISP_WRITE(isp, BIU_SEMA, 0);
   3267 
   3268 	/*
   3269 	 * Set Host Interrupt condition so that RISC will pick up mailbox regs.
   3270 	 */
   3271 	ISP_WRITE(isp, HCCR, HCCR_CMD_SET_HOST_INT);
   3272 
   3273 	/*
   3274 	 * Wait until HOST INT has gone away (meaning that the Qlogic
   3275 	 * has picked up the mailbox command. Wait a long time.
   3276 	 */
   3277 	loops = MBOX_DELAY_COUNT * 5;
   3278 	while ((ISP_READ(isp, HCCR) & HCCR_CMD_CLEAR_RISC_INT) != 0) {
   3279 		SYS_DELAY(100);
   3280 		if (--loops < 0) {
   3281 			PRINTF("%s: isp_mboxcmd timeout #2\n", isp->isp_name);
   3282 			return;
   3283 		}
   3284 	}
   3285 
   3286 	/*
   3287 	 * While the Semaphore registers isn't set, wait for the Qlogic
   3288 	 * to process the mailbox command. Again- wait a long time.
   3289 	 */
   3290 	loops = MBOX_DELAY_COUNT * 5;
   3291 	while ((ISP_READ(isp, BIU_SEMA) & 1) == 0) {
   3292 		SYS_DELAY(100);
   3293 		/*
   3294 		 * Wierd- I've seen the case where the semaphore register
   3295 		 * isn't getting set- sort of a violation of the protocol..
   3296 		 */
   3297 		if (ISP_READ(isp, OUTMAILBOX0) & 0x4000)
   3298 			break;
   3299 		if (--loops < 0) {
   3300 			PRINTF("%s: isp_mboxcmd timeout #3\n", isp->isp_name);
   3301 			return;
   3302 		}
   3303 	}
   3304 
   3305 	/*
   3306 	 * Make sure that the MBOX_BUSY has gone away
   3307 	 */
   3308 	loops = MBOX_DELAY_COUNT;
   3309 	for (;;) {
   3310 		u_int16_t mbox = ISP_READ(isp, OUTMAILBOX0);
   3311 		if (mbox == MBOX_BUSY) {
   3312 			if (--loops < 0) {
   3313 				PRINTF("%s: isp_mboxcmd timeout #4\n",
   3314 				    isp->isp_name);
   3315 				return;
   3316 			}
   3317 			SYS_DELAY(100);
   3318 			continue;
   3319 		}
   3320 		/*
   3321 		 * We have a pending MBOX async event.
   3322 		 */
   3323 		if (mbox & 0x8000) {
   3324 			int fph = isp_parse_async(isp, (int) mbox);
   3325 			ISP_WRITE(isp, BIU_SEMA, 0);
   3326 			ISP_WRITE(isp, HCCR, HCCR_CMD_CLEAR_RISC_INT);
   3327 			if (fph < 0) {
   3328 				return;
   3329 			} else if (fph > 0) {
   3330 				isp_fastpost_complete(isp, fph);
   3331 			}
   3332 			SYS_DELAY(100);
   3333 			continue;
   3334 		}
   3335 		break;
   3336 	}
   3337 
   3338 	/*
   3339 	 * Pick up output parameters. Special case some of the readbacks
   3340 	 * for the dual port SCSI cards.
   3341 	 */
   3342 	if (IS_12X0(isp)) {
   3343 		switch (opcode) {
   3344 		case MBOX_GET_RETRY_COUNT:
   3345 		case MBOX_SET_RETRY_COUNT:
   3346 			mbp->param[7] = ISP_READ(isp, OUTMAILBOX7);
   3347 			mbp->param[6] = ISP_READ(isp, OUTMAILBOX6);
   3348 			break;
   3349 		case MBOX_GET_TAG_AGE_LIMIT:
   3350 		case MBOX_SET_TAG_AGE_LIMIT:
   3351 		case MBOX_GET_ACT_NEG_STATE:
   3352 		case MBOX_SET_ACT_NEG_STATE:
   3353 		case MBOX_SET_ASYNC_DATA_SETUP_TIME:
   3354 		case MBOX_GET_ASYNC_DATA_SETUP_TIME:
   3355 		case MBOX_GET_RESET_DELAY_PARAMS:
   3356 		case MBOX_SET_RESET_DELAY_PARAMS:
   3357 			mbp->param[2] = ISP_READ(isp, OUTMAILBOX2);
   3358 			break;
   3359 		}
   3360 	}
   3361 
   3362 	switch (outparam) {
   3363 	case 8: mbp->param[7] = ISP_READ(isp, OUTMAILBOX7);
   3364 	case 7: mbp->param[6] = ISP_READ(isp, OUTMAILBOX6);
   3365 	case 6: mbp->param[5] = ISP_READ(isp, OUTMAILBOX5);
   3366 	case 5: mbp->param[4] = ISP_READ(isp, OUTMAILBOX4);
   3367 	case 4: mbp->param[3] = ISP_READ(isp, OUTMAILBOX3);
   3368 	case 3: mbp->param[2] = ISP_READ(isp, OUTMAILBOX2);
   3369 	case 2: mbp->param[1] = ISP_READ(isp, OUTMAILBOX1);
   3370 	case 1: mbp->param[0] = ISP_READ(isp, OUTMAILBOX0);
   3371 	}
   3372 
   3373 	/*
   3374 	 * Clear RISC int.
   3375 	 */
   3376 	ISP_WRITE(isp, HCCR, HCCR_CMD_CLEAR_RISC_INT);
   3377 
   3378 	/*
   3379 	 * Release semaphore on mailbox registers
   3380 	 */
   3381 	ISP_WRITE(isp, BIU_SEMA, 0);
   3382 
   3383 	/*
   3384 	 * Just to be chatty here...
   3385 	 */
   3386 	switch (mbp->param[0]) {
   3387 	case MBOX_COMMAND_COMPLETE:
   3388 		break;
   3389 	case MBOX_INVALID_COMMAND:
   3390 		IDPRINTF(2, ("%s: mbox cmd %x failed with INVALID_COMMAND\n",
   3391 		    isp->isp_name, opcode));
   3392 		break;
   3393 	case MBOX_HOST_INTERFACE_ERROR:
   3394 		PRINTF("%s: mbox cmd %x failed with HOST_INTERFACE_ERROR\n",
   3395 		    isp->isp_name, opcode);
   3396 		break;
   3397 	case MBOX_TEST_FAILED:
   3398 		PRINTF("%s: mbox cmd %x failed with TEST_FAILED\n",
   3399 		    isp->isp_name, opcode);
   3400 		break;
   3401 	case MBOX_COMMAND_ERROR:
   3402 		if (opcode != MBOX_ABOUT_FIRMWARE)
   3403 		    PRINTF("%s: mbox cmd %x failed with COMMAND_ERROR\n",
   3404 			isp->isp_name, opcode);
   3405 		break;
   3406 	case MBOX_COMMAND_PARAM_ERROR:
   3407 		switch (opcode) {
   3408 		case MBOX_GET_PORT_DB:
   3409 		case MBOX_GET_PORT_NAME:
   3410 		case MBOX_GET_DEV_QUEUE_PARAMS:
   3411 			break;
   3412 		default:
   3413 			PRINTF("%s: mbox cmd %x failed with "
   3414 			    "COMMAND_PARAM_ERROR\n", isp->isp_name, opcode);
   3415 		}
   3416 		break;
   3417 
   3418 	/*
   3419 	 * Be silent about these...
   3420 	 */
   3421 	case ASYNC_PDB_CHANGED:
   3422 		((fcparam *) isp->isp_param)->isp_loopstate = LOOP_PDB_RCVD;
   3423 		break;
   3424 
   3425 	case ASYNC_LIP_OCCURRED:
   3426 		((fcparam *) isp->isp_param)->isp_lipseq = mbp->param[1];
   3427 		/* FALLTHROUGH */
   3428 	case ASYNC_LOOP_UP:
   3429 		((fcparam *) isp->isp_param)->isp_fwstate = FW_CONFIG_WAIT;
   3430 		((fcparam *) isp->isp_param)->isp_loopstate = LOOP_LIP_RCVD;
   3431 		break;
   3432 
   3433 	case ASYNC_LOOP_DOWN:
   3434 	case ASYNC_LOOP_RESET:
   3435 		((fcparam *) isp->isp_param)->isp_fwstate = FW_CONFIG_WAIT;
   3436 		((fcparam *) isp->isp_param)->isp_loopstate = LOOP_NIL;
   3437 		/* FALLTHROUGH */
   3438 	case ASYNC_CHANGE_NOTIFY:
   3439 		break;
   3440 
   3441 	default:
   3442 		/*
   3443 		 * The expected return of EXEC_FIRMWARE is zero.
   3444 		 */
   3445 		if ((opcode == MBOX_EXEC_FIRMWARE && mbp->param[0] != 0) ||
   3446 		    (opcode != MBOX_EXEC_FIRMWARE)) {
   3447 			PRINTF("%s: mbox cmd %x failed with error %x\n",
   3448 				isp->isp_name, opcode, mbp->param[0]);
   3449 		}
   3450 		break;
   3451 	}
   3452 }
   3453 
   3454 void
   3455 isp_lostcmd(isp, xs)
   3456 	struct ispsoftc *isp;
   3457 	ISP_SCSI_XFER_T *xs;
   3458 {
   3459 	mbreg_t mbs;
   3460 
   3461 	mbs.param[0] = MBOX_GET_FIRMWARE_STATUS;
   3462 	isp_mboxcmd(isp, &mbs);
   3463 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
   3464 		isp_dumpregs(isp, "couldn't GET FIRMWARE STATUS");
   3465 		return;
   3466 	}
   3467 	if (mbs.param[1]) {
   3468 		PRINTF("%s: %d commands on completion queue\n",
   3469 		    isp->isp_name, mbs.param[1]);
   3470 	}
   3471 	if (XS_NULL(xs))
   3472 		return;
   3473 
   3474 	mbs.param[0] = MBOX_GET_DEV_QUEUE_STATUS;
   3475 	mbs.param[1] = (XS_TGT(xs) << 8) | XS_LUN(xs); /* XXX: WHICH BUS? */
   3476 	isp_mboxcmd(isp, &mbs);
   3477 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
   3478 		isp_dumpregs(isp, "couldn't GET DEVICE QUEUE STATUS");
   3479 		return;
   3480 	}
   3481 	PRINTF("%s: lost command for target %d lun %d, %d active of %d, "
   3482 		"Queue State: %x\n", isp->isp_name, XS_TGT(xs),
   3483 		XS_LUN(xs), mbs.param[2], mbs.param[3], mbs.param[1]);
   3484 
   3485 	isp_dumpregs(isp, "lost command");
   3486 	/*
   3487 	 * XXX: Need to try and do something to recover.
   3488 	 */
   3489 }
   3490 
   3491 static void
   3492 isp_dumpregs(isp, msg)
   3493 	struct ispsoftc *isp;
   3494 	const char *msg;
   3495 {
   3496 	PRINTF("%s: %s\n", isp->isp_name, msg);
   3497 	if (IS_SCSI(isp))
   3498 		PRINTF("    biu_conf1=%x", ISP_READ(isp, BIU_CONF1));
   3499 	else
   3500 		PRINTF("    biu_csr=%x", ISP_READ(isp, BIU2100_CSR));
   3501 	PRINTF(" biu_icr=%x biu_isr=%x biu_sema=%x ", ISP_READ(isp, BIU_ICR),
   3502 	    ISP_READ(isp, BIU_ISR), ISP_READ(isp, BIU_SEMA));
   3503 	PRINTF("risc_hccr=%x\n", ISP_READ(isp, HCCR));
   3504 
   3505 
   3506 	if (IS_SCSI(isp)) {
   3507 		ISP_WRITE(isp, HCCR, HCCR_CMD_PAUSE);
   3508 		PRINTF("    cdma_conf=%x cdma_sts=%x cdma_fifostat=%x\n",
   3509 			ISP_READ(isp, CDMA_CONF), ISP_READ(isp, CDMA_STATUS),
   3510 			ISP_READ(isp, CDMA_FIFO_STS));
   3511 		PRINTF("    ddma_conf=%x ddma_sts=%x ddma_fifostat=%x\n",
   3512 			ISP_READ(isp, DDMA_CONF), ISP_READ(isp, DDMA_STATUS),
   3513 			ISP_READ(isp, DDMA_FIFO_STS));
   3514 		PRINTF("    sxp_int=%x sxp_gross=%x sxp(scsi_ctrl)=%x\n",
   3515 			ISP_READ(isp, SXP_INTERRUPT),
   3516 			ISP_READ(isp, SXP_GROSS_ERR),
   3517 			ISP_READ(isp, SXP_PINS_CONTROL));
   3518 		ISP_WRITE(isp, HCCR, HCCR_CMD_RELEASE);
   3519 	}
   3520 	PRINTF("    mbox regs: %x %x %x %x %x\n",
   3521 	    ISP_READ(isp, OUTMAILBOX0), ISP_READ(isp, OUTMAILBOX1),
   3522 	    ISP_READ(isp, OUTMAILBOX2), ISP_READ(isp, OUTMAILBOX3),
   3523 	    ISP_READ(isp, OUTMAILBOX4));
   3524 	ISP_DUMPREGS(isp);
   3525 }
   3526 
   3527 static void
   3528 isp_fw_state(isp)
   3529 	struct ispsoftc *isp;
   3530 {
   3531 	mbreg_t mbs;
   3532 	if (IS_FC(isp)) {
   3533 		int once = 0;
   3534 		fcparam *fcp = isp->isp_param;
   3535 again:
   3536 		mbs.param[0] = MBOX_GET_FW_STATE;
   3537 		isp_mboxcmd(isp, &mbs);
   3538 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
   3539 			IDPRINTF(1, ("%s: isp_fw_state 0x%x\n", isp->isp_name,
   3540 			    mbs.param[0]));
   3541 			switch (mbs.param[0]) {
   3542 			case ASYNC_PDB_CHANGED:
   3543 				if (once++ < 10) {
   3544 					goto again;
   3545 				}
   3546 				fcp->isp_fwstate = FW_CONFIG_WAIT;
   3547 				fcp->isp_loopstate = LOOP_PDB_RCVD;
   3548 				goto again;
   3549 			case ASYNC_LIP_OCCURRED:
   3550 				fcp->isp_lipseq = mbs.param[1];
   3551 				/* FALLTHROUGH */
   3552 			case ASYNC_LOOP_UP:
   3553 				fcp->isp_fwstate = FW_CONFIG_WAIT;
   3554 				fcp->isp_loopstate = LOOP_LIP_RCVD;
   3555 				if (once++ < 10) {
   3556 					goto again;
   3557 				}
   3558 				break;
   3559 			case ASYNC_LOOP_RESET:
   3560 			case ASYNC_LOOP_DOWN:
   3561 				fcp->isp_fwstate = FW_CONFIG_WAIT;
   3562 				fcp->isp_loopstate = LOOP_NIL;
   3563 				/* FALLTHROUGH */
   3564 			case ASYNC_CHANGE_NOTIFY:
   3565 				if (once++ < 10) {
   3566 					goto again;
   3567 				}
   3568 				break;
   3569 			}
   3570 			PRINTF("%s: GET FIRMWARE STATE failed (0x%x)\n",
   3571 			    isp->isp_name, mbs.param[0]);
   3572 			return;
   3573 		}
   3574 		fcp->isp_fwstate = mbs.param[1];
   3575 	}
   3576 }
   3577 
   3578 static void
   3579 isp_update(isp)
   3580 	struct ispsoftc *isp;
   3581 {
   3582 	int bus;
   3583 
   3584 	for (bus = 0; isp->isp_update != 0; bus++) {
   3585 		if (isp->isp_update & (1 << bus)) {
   3586 			isp_update_bus(isp, bus);
   3587 			isp->isp_update ^= (1 << bus);
   3588 		}
   3589 	}
   3590 }
   3591 
   3592 static void
   3593 isp_update_bus(isp, bus)
   3594 	struct ispsoftc *isp;
   3595 	int bus;
   3596 {
   3597 	int tgt;
   3598 	mbreg_t mbs;
   3599 	sdparam *sdp;
   3600 
   3601 	if (IS_FC(isp)) {
   3602 		return;
   3603 	}
   3604 
   3605 	sdp = isp->isp_param;
   3606 	sdp += bus;
   3607 
   3608 	for (tgt = 0; tgt < MAX_TARGETS; tgt++) {
   3609 		u_int16_t flags, period, offset;
   3610 		int get;
   3611 
   3612 		if (sdp->isp_devparam[tgt].dev_enable == 0) {
   3613 			IDPRINTF(1, ("%s: skipping target %d bus %d update\n",
   3614 			    isp->isp_name, tgt, bus));
   3615 			continue;
   3616 		}
   3617 
   3618 		/*
   3619 		 * If the goal is to update the status of the device,
   3620 		 * take what's in dev_flags and try and set the device
   3621 		 * toward that. Otherwise, if we're just refreshing the
   3622 		 * current device state, get the current parameters.
   3623 		 */
   3624 		if (sdp->isp_devparam[tgt].dev_update) {
   3625 			mbs.param[0] = MBOX_SET_TARGET_PARAMS;
   3626 			mbs.param[2] = sdp->isp_devparam[tgt].dev_flags;
   3627 			/*
   3628 			 * Insist that PARITY must be enabled if SYNC
   3629 			 * is enabled.
   3630 			 */
   3631 			if (mbs.param[2] & DPARM_SYNC) {
   3632 				mbs.param[2] |= DPARM_PARITY;
   3633 			}
   3634 			mbs.param[3] =
   3635 				(sdp->isp_devparam[tgt].sync_offset << 8) |
   3636 				(sdp->isp_devparam[tgt].sync_period);
   3637 			sdp->isp_devparam[tgt].dev_update = 0;
   3638 			/*
   3639 			 * A command completion later that has
   3640 			 * RQSTF_NEGOTIATION set will cause
   3641 			 * the dev_refresh/announce cycle.
   3642 			 *
   3643 			 * Note: It is really important to update our current
   3644 			 * flags with at least the state of TAG capabilities-
   3645 			 * otherwise we might try and send a tagged command
   3646 			 * when we have it all turned off. So change it here
   3647 			 * to say that current already matches goal.
   3648 			 */
   3649 			sdp->isp_devparam[tgt].cur_dflags &= ~DPARM_TQING;
   3650 			sdp->isp_devparam[tgt].cur_dflags |=
   3651 			    (sdp->isp_devparam[tgt].dev_flags & DPARM_TQING);
   3652 			sdp->isp_devparam[tgt].dev_refresh = 1;
   3653 			IDPRINTF(3, ("%s: bus %d set tgt %d flags 0x%x off 0x%x"
   3654 			    " period 0x%x\n", isp->isp_name, bus, tgt,
   3655 			    mbs.param[2], mbs.param[3] >> 8,
   3656 			    mbs.param[3] & 0xff));
   3657 			get = 0;
   3658 		} else if (sdp->isp_devparam[tgt].dev_refresh) {
   3659 			mbs.param[0] = MBOX_GET_TARGET_PARAMS;
   3660 			sdp->isp_devparam[tgt].dev_refresh = 0;
   3661 			get = 1;
   3662 		} else {
   3663 			continue;
   3664 		}
   3665 		mbs.param[1] = (bus << 15) | (tgt << 8) ;
   3666 		isp_mboxcmd(isp, &mbs);
   3667 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
   3668 			PRINTF("%s: failed to %cet SCSI parameters for "
   3669 			    "target %d\n", isp->isp_name, (get)? 'g' : 's',
   3670 			    tgt);
   3671 			continue;
   3672 		}
   3673 		if (get == 0) {
   3674 			isp->isp_sendmarker |= (1 << bus);
   3675 			continue;
   3676 		}
   3677 		flags = mbs.param[2];
   3678 		period = mbs.param[3] & 0xff;
   3679 		offset = mbs.param[3] >> 8;
   3680 		sdp->isp_devparam[tgt].cur_dflags = flags;
   3681 		sdp->isp_devparam[tgt].cur_period = period;
   3682 		sdp->isp_devparam[tgt].cur_offset = offset;
   3683 		get = (bus << 16) | tgt;
   3684 		(void) isp_async(isp, ISPASYNC_NEW_TGT_PARAMS, &get);
   3685 	}
   3686 }
   3687 
   3688 static void
   3689 isp_setdfltparm(isp, channel)
   3690 	struct ispsoftc *isp;
   3691 	int channel;
   3692 {
   3693 	int tgt;
   3694 	mbreg_t mbs;
   3695 	sdparam *sdp, *sdp_chan0, *sdp_chan1;
   3696 
   3697 	if (IS_FC(isp)) {
   3698 		fcparam *fcp = (fcparam *) isp->isp_param;
   3699 		fcp += channel;
   3700 		if (fcp->isp_gotdparms) {
   3701 			return;
   3702 		}
   3703 		fcp->isp_gotdparms = 1;
   3704 		fcp->isp_maxfrmlen = ICB_DFLT_FRMLEN;
   3705 		fcp->isp_maxalloc = ICB_DFLT_ALLOC;
   3706 		fcp->isp_execthrottle = ICB_DFLT_THROTTLE;
   3707 		fcp->isp_retry_delay = ICB_DFLT_RDELAY;
   3708 		fcp->isp_retry_count = ICB_DFLT_RCOUNT;
   3709 		/* Platform specific.... */
   3710 		fcp->isp_loopid = DEFAULT_LOOPID(isp);
   3711 		fcp->isp_nodewwn = DEFAULT_WWN(isp);
   3712 		fcp->isp_portwwn = 0;
   3713 		/*
   3714 		 * Now try and read NVRAM
   3715 		 */
   3716 		if ((isp->isp_confopts & (ISP_CFG_NONVRAM|ISP_CFG_OWNWWN)) ||
   3717 		    (isp_read_nvram(isp))) {
   3718 			PRINTF("%s: using Node WWN 0x%08x%08x\n",
   3719 			    isp->isp_name, (u_int32_t)(fcp->isp_nodewwn >> 32),
   3720 			    (u_int32_t)(fcp->isp_nodewwn & 0xffffffff));
   3721 		}
   3722 		return;
   3723 	}
   3724 
   3725 	sdp_chan0 = (sdparam *) isp->isp_param;
   3726 	sdp_chan1 = sdp_chan0 + 1;
   3727 	sdp = sdp_chan0 + channel;
   3728 
   3729 	/*
   3730 	 * Been there, done that, got the T-shirt...
   3731 	 */
   3732 	if (sdp->isp_gotdparms) {
   3733 		return;
   3734 	}
   3735 	sdp->isp_gotdparms = 1;
   3736 
   3737 	/*
   3738 	 * If we've not been told to avoid reading NVRAM, try and read it.
   3739 	 * If we're successful reading it, we can return since NVRAM will
   3740 	 * tell us the right thing to do. Otherwise, establish some reasonable
   3741 	 * defaults.
   3742 	 */
   3743 	if ((isp->isp_confopts & ISP_CFG_NONVRAM) == 0) {
   3744 		if (isp_read_nvram(isp) == 0) {
   3745 			return;
   3746 		}
   3747 	}
   3748 
   3749 	/*
   3750 	 * Now try and see whether we have specific values for them.
   3751 	 */
   3752 	mbs.param[0] = MBOX_GET_ACT_NEG_STATE;
   3753 	isp_mboxcmd(isp, &mbs);
   3754 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
   3755 		IDPRINTF(2, ("could not GET ACT NEG STATE\n"));
   3756 		sdp_chan0->isp_req_ack_active_neg = 1;
   3757 		sdp_chan0->isp_data_line_active_neg = 1;
   3758 		if (IS_12X0(isp)) {
   3759 			sdp_chan1->isp_req_ack_active_neg = 1;
   3760 			sdp_chan1->isp_data_line_active_neg = 1;
   3761 		}
   3762 	} else {
   3763 		sdp_chan0->isp_req_ack_active_neg = (mbs.param[1] >> 4) & 0x1;
   3764 		sdp_chan0->isp_data_line_active_neg = (mbs.param[1] >> 5) & 0x1;
   3765 		if (IS_12X0(isp)) {
   3766 			sdp_chan1->isp_req_ack_active_neg =
   3767 			    (mbs.param[2] >> 4) & 0x1;
   3768 			sdp_chan1->isp_data_line_active_neg =
   3769 			    (mbs.param[2] >> 5) & 0x1;
   3770 		}
   3771 	}
   3772 
   3773 	/*
   3774 	 * The trick here is to establish a default for the default (honk!)
   3775 	 * state (dev_flags). Then try and get the current status from
   3776 	 * the card to fill in the current state. We don't, in fact, set
   3777 	 * the default to the SAFE default state- that's not the goal state.
   3778 	 */
   3779 	for (tgt = 0; tgt < MAX_TARGETS; tgt++) {
   3780 		sdp->isp_devparam[tgt].cur_offset = 0;
   3781 		sdp->isp_devparam[tgt].cur_period = 0;
   3782 		sdp->isp_devparam[tgt].dev_flags = DPARM_DEFAULT;
   3783 		sdp->isp_devparam[tgt].cur_dflags = 0;
   3784 		if (isp->isp_type < ISP_HA_SCSI_1040 ||
   3785 		    (isp->isp_clock && isp->isp_clock < 60)) {
   3786 			sdp->isp_devparam[tgt].sync_offset =
   3787 			    ISP_10M_SYNCPARMS >> 8;
   3788 			sdp->isp_devparam[tgt].sync_period =
   3789 			    ISP_10M_SYNCPARMS & 0xff;
   3790 		} else if (IS_1080(isp)) {
   3791 			sdp->isp_devparam[tgt].sync_offset =
   3792 			    ISP_40M_SYNCPARMS >> 8;
   3793 			sdp->isp_devparam[tgt].sync_period =
   3794 			    ISP_40M_SYNCPARMS & 0xff;
   3795 		} else {
   3796 			sdp->isp_devparam[tgt].sync_offset =
   3797 			    ISP_20M_SYNCPARMS >> 8;
   3798 			sdp->isp_devparam[tgt].sync_period =
   3799 			    ISP_20M_SYNCPARMS & 0xff;
   3800 		}
   3801 
   3802 		/*
   3803 		 * Don't get current target parameters if we've been
   3804 		 * told not to use NVRAM- it's really the same thing.
   3805 		 */
   3806 		if (isp->isp_confopts & ISP_CFG_NONVRAM) {
   3807 			continue;
   3808 		}
   3809 
   3810 		mbs.param[0] = MBOX_GET_TARGET_PARAMS;
   3811 		mbs.param[1] = tgt << 8;
   3812 		isp_mboxcmd(isp, &mbs);
   3813 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
   3814 			continue;
   3815 		}
   3816 		sdp->isp_devparam[tgt].cur_dflags = mbs.param[2];
   3817 		sdp->isp_devparam[tgt].dev_flags = mbs.param[2];
   3818 		sdp->isp_devparam[tgt].cur_period = mbs.param[3] & 0xff;
   3819 		sdp->isp_devparam[tgt].cur_offset = mbs.param[3] >> 8;
   3820 
   3821 		/*
   3822 		 * The maximum period we can really see
   3823 		 * here is 100 (decimal), or 400 ns.
   3824 		 * For some unknown reason we sometimes
   3825 		 * get back wildass numbers from the
   3826 		 * boot device's parameters (alpha only).
   3827 		 */
   3828 		if ((mbs.param[3] & 0xff) <= 0x64) {
   3829 			sdp->isp_devparam[tgt].sync_period =
   3830 			    mbs.param[3] & 0xff;
   3831 			sdp->isp_devparam[tgt].sync_offset =
   3832 			    mbs.param[3] >> 8;
   3833 		}
   3834 
   3835 		/*
   3836 		 * It is not safe to run Ultra Mode with a clock < 60.
   3837 		 */
   3838 		if (((isp->isp_clock && isp->isp_clock < 60) ||
   3839 		    (isp->isp_type < ISP_HA_SCSI_1020A)) &&
   3840 		    (sdp->isp_devparam[tgt].sync_period <=
   3841 		    (ISP_20M_SYNCPARMS & 0xff))) {
   3842 			sdp->isp_devparam[tgt].sync_offset =
   3843 			    ISP_10M_SYNCPARMS >> 8;
   3844 			sdp->isp_devparam[tgt].sync_period =
   3845 			    ISP_10M_SYNCPARMS & 0xff;
   3846 		}
   3847 	}
   3848 
   3849 	/*
   3850 	 * Establish default some more default parameters.
   3851 	 */
   3852 	sdp->isp_cmd_dma_burst_enable = 1;
   3853 	sdp->isp_data_dma_burst_enabl = 1;
   3854 	sdp->isp_fifo_threshold = 0;
   3855 	sdp->isp_initiator_id = 7;
   3856 	/* XXXX This is probably based upon clock XXXX */
   3857 	if (isp->isp_type >= ISP_HA_SCSI_1040) {
   3858 		sdp->isp_async_data_setup = 9;
   3859 	} else {
   3860 		sdp->isp_async_data_setup = 6;
   3861 	}
   3862 	sdp->isp_selection_timeout = 250;
   3863 	sdp->isp_max_queue_depth = MAXISPREQUEST;
   3864 	sdp->isp_tag_aging = 8;
   3865 	sdp->isp_bus_reset_delay = 3;
   3866 	sdp->isp_retry_count = 2;
   3867 	sdp->isp_retry_delay = 2;
   3868 
   3869 	for (tgt = 0; tgt < MAX_TARGETS; tgt++) {
   3870 		sdp->isp_devparam[tgt].exc_throttle = 16;
   3871 		sdp->isp_devparam[tgt].dev_enable = 1;
   3872 	}
   3873 }
   3874 
   3875 /*
   3876  * Re-initialize the ISP and complete all orphaned commands
   3877  * with a 'botched' notice. The reset/init routines should
   3878  * not disturb an already active list of commands.
   3879  *
   3880  * Locks held prior to coming here.
   3881  */
   3882 
   3883 void
   3884 isp_restart(isp)
   3885 	struct ispsoftc *isp;
   3886 {
   3887 	ISP_SCSI_XFER_T *xs;
   3888 	u_int32_t handle;
   3889 
   3890 #if	0
   3891 	isp->isp_gotdparms = 0;
   3892 #endif
   3893 	isp_reset(isp);
   3894 	if (isp->isp_state == ISP_RESETSTATE) {
   3895 		isp_init(isp);
   3896 		if (isp->isp_state == ISP_INITSTATE) {
   3897 			isp->isp_state = ISP_RUNSTATE;
   3898 		}
   3899 	}
   3900 	if (isp->isp_state != ISP_RUNSTATE) {
   3901 		PRINTF("%s: isp_restart cannot restart ISP\n", isp->isp_name);
   3902 	}
   3903 	isp->isp_nactive = 0;
   3904 
   3905 	for (handle = 1; handle <= (int) isp->isp_maxcmds; handle++) {
   3906 		xs = isp_find_xs(isp, handle);
   3907 		if (xs == NULL) {
   3908 			continue;
   3909 		}
   3910 		isp_destroy_handle(isp, handle);
   3911 		if (XS_XFRLEN(xs)) {
   3912 			ISP_DMAFREE(isp, xs, handle);
   3913 			XS_RESID(xs) = XS_XFRLEN(xs);
   3914 		} else {
   3915 			XS_RESID(xs) = 0;
   3916 		}
   3917 		XS_SETERR(xs, HBA_BUSRESET);
   3918 		XS_CMD_DONE(xs);
   3919 	}
   3920 }
   3921 
   3922 /*
   3923  * NVRAM Routines
   3924  */
   3925 
   3926 static int
   3927 isp_read_nvram(isp)
   3928 	struct ispsoftc *isp;
   3929 {
   3930 	static char *tru = "true";
   3931 	static char *not = "false";
   3932 	int i, amt;
   3933 	u_int8_t csum, minversion;
   3934 	union {
   3935 		u_int8_t _x[ISP2100_NVRAM_SIZE];
   3936 		u_int16_t _s[ISP2100_NVRAM_SIZE>>1];
   3937 	} _n;
   3938 #define	nvram_data	_n._x
   3939 #define	nvram_words	_n._s
   3940 
   3941 	if (IS_FC(isp)) {
   3942 		amt = ISP2100_NVRAM_SIZE;
   3943 		minversion = 1;
   3944 	} else if (IS_1080(isp) || IS_12X0(isp)) {
   3945 		amt = ISP1080_NVRAM_SIZE;
   3946 		minversion = 0;
   3947 	} else {
   3948 		amt = ISP_NVRAM_SIZE;
   3949 		minversion = 2;
   3950 	}
   3951 
   3952 	/*
   3953 	 * Just read the first two words first to see if we have a valid
   3954 	 * NVRAM to continue reading the rest with.
   3955 	 */
   3956 	for (i = 0; i < 2; i++) {
   3957 		isp_rdnvram_word(isp, i, &nvram_words[i]);
   3958 	}
   3959 	if (nvram_data[0] != 'I' || nvram_data[1] != 'S' ||
   3960 	    nvram_data[2] != 'P') {
   3961 		if (isp->isp_bustype != ISP_BT_SBUS) {
   3962 			PRINTF("%s: invalid NVRAM header (%x,%x,%x,%x)\n",
   3963 			    isp->isp_name, nvram_data[0], nvram_data[1],
   3964 			    nvram_data[2], nvram_data[3]);
   3965 		}
   3966 		return (-1);
   3967 	}
   3968 	for (i = 2; i < amt>>1; i++) {
   3969 		isp_rdnvram_word(isp, i, &nvram_words[i]);
   3970 	}
   3971 	for (csum = 0, i = 0; i < amt; i++) {
   3972 		csum += nvram_data[i];
   3973 	}
   3974 	if (csum != 0) {
   3975 		PRINTF("%s: invalid NVRAM checksum\n", isp->isp_name);
   3976 		return (-1);
   3977 	}
   3978 	if (ISP_NVRAM_VERSION(nvram_data) < minversion) {
   3979 		PRINTF("%s: version %d NVRAM not understood\n", isp->isp_name,
   3980 		    ISP_NVRAM_VERSION(nvram_data));
   3981 		return (-1);
   3982 	}
   3983 
   3984 	if (IS_1080(isp) || IS_12X0(isp)) {
   3985 		int bus;
   3986 		sdparam *sdp = (sdparam *) isp->isp_param;
   3987 		for (bus = 0; bus < (IS_1080(isp)? 1 : 2); bus++, sdp++) {
   3988 			sdp->isp_fifo_threshold =
   3989 			    ISP1080_NVRAM_FIFO_THRESHOLD(nvram_data);
   3990 
   3991 			sdp->isp_initiator_id =
   3992 			    ISP1080_NVRAM_INITIATOR_ID(nvram_data, bus);
   3993 
   3994 			sdp->isp_bus_reset_delay =
   3995 			    ISP1080_NVRAM_BUS_RESET_DELAY(nvram_data, bus);
   3996 
   3997 			sdp->isp_retry_count =
   3998 			    ISP1080_NVRAM_BUS_RETRY_COUNT(nvram_data, bus);
   3999 
   4000 			sdp->isp_retry_delay =
   4001 			    ISP1080_NVRAM_BUS_RETRY_DELAY(nvram_data, bus);
   4002 
   4003 			sdp->isp_async_data_setup =
   4004 			    ISP1080_NVRAM_ASYNC_DATA_SETUP_TIME(nvram_data,
   4005 			    bus);
   4006 
   4007 			sdp->isp_req_ack_active_neg =
   4008 			    ISP1080_NVRAM_REQ_ACK_ACTIVE_NEGATION(nvram_data,
   4009 			    bus);
   4010 
   4011 			sdp->isp_data_line_active_neg =
   4012 			    ISP1080_NVRAM_DATA_LINE_ACTIVE_NEGATION(nvram_data,
   4013 			    bus);
   4014 
   4015 			sdp->isp_data_dma_burst_enabl =
   4016 			    ISP1080_NVRAM_BURST_ENABLE(nvram_data);
   4017 
   4018 			sdp->isp_cmd_dma_burst_enable =
   4019 			    ISP1080_NVRAM_BURST_ENABLE(nvram_data);
   4020 
   4021 			sdp->isp_selection_timeout =
   4022 			    ISP1080_NVRAM_SELECTION_TIMEOUT(nvram_data, bus);
   4023 
   4024 			sdp->isp_max_queue_depth =
   4025 			     ISP1080_NVRAM_MAX_QUEUE_DEPTH(nvram_data, bus);
   4026 
   4027 			if (isp->isp_dblev >= 3) {
   4028 				PRINTF("%s: ISP1080 bus %d NVRAM values:\n",
   4029 				    isp->isp_name, bus);
   4030 				PRINTF("               Initiator ID = %d\n",
   4031 				    sdp->isp_initiator_id);
   4032 				PRINTF("             Fifo Threshold = 0x%x\n",
   4033 				    sdp->isp_fifo_threshold);
   4034 				PRINTF("            Bus Reset Delay = %d\n",
   4035 				    sdp->isp_bus_reset_delay);
   4036 				PRINTF("                Retry Count = %d\n",
   4037 				    sdp->isp_retry_count);
   4038 				PRINTF("                Retry Delay = %d\n",
   4039 				    sdp->isp_retry_delay);
   4040 				PRINTF("              Tag Age Limit = %d\n",
   4041 				    sdp->isp_tag_aging);
   4042 				PRINTF("          Selection Timeout = %d\n",
   4043 				    sdp->isp_selection_timeout);
   4044 				PRINTF("            Max Queue Depth = %d\n",
   4045 				    sdp->isp_max_queue_depth);
   4046 				PRINTF("           Async Data Setup = 0x%x\n",
   4047 				    sdp->isp_async_data_setup);
   4048 				PRINTF("    REQ/ACK Active Negation = %s\n",
   4049 				    sdp->isp_req_ack_active_neg? tru : not);
   4050 				PRINTF("  Data Line Active Negation = %s\n",
   4051 				    sdp->isp_data_line_active_neg? tru : not);
   4052 				PRINTF("       Cmd DMA Burst Enable = %s\n",
   4053 				    sdp->isp_cmd_dma_burst_enable? tru : not);
   4054 			}
   4055 			for (i = 0; i < MAX_TARGETS; i++) {
   4056 				sdp->isp_devparam[i].dev_enable =
   4057 				    ISP1080_NVRAM_TGT_DEVICE_ENABLE(nvram_data, i, bus);
   4058 				sdp->isp_devparam[i].exc_throttle =
   4059 					ISP1080_NVRAM_TGT_EXEC_THROTTLE(nvram_data, i, bus);
   4060 				sdp->isp_devparam[i].sync_offset =
   4061 					ISP1080_NVRAM_TGT_SYNC_OFFSET(nvram_data, i, bus);
   4062 				sdp->isp_devparam[i].sync_period =
   4063 					ISP1080_NVRAM_TGT_SYNC_PERIOD(nvram_data, i, bus);
   4064 				sdp->isp_devparam[i].dev_flags = 0;
   4065 				if (ISP1080_NVRAM_TGT_RENEG(nvram_data, i, bus))
   4066 					sdp->isp_devparam[i].dev_flags |= DPARM_RENEG;
   4067 				if (ISP1080_NVRAM_TGT_QFRZ(nvram_data, i, bus)) {
   4068 					PRINTF("%s: not supporting QFRZ option "
   4069 					    "for target %d bus %d\n",
   4070 					    isp->isp_name, i, bus);
   4071 				}
   4072 				sdp->isp_devparam[i].dev_flags |= DPARM_ARQ;
   4073 				if (ISP1080_NVRAM_TGT_ARQ(nvram_data, i, bus) == 0) {
   4074 					PRINTF("%s: not disabling ARQ option "
   4075 					    "for target %d bus %d\n",
   4076 					    isp->isp_name, i, bus);
   4077 				}
   4078 				if (ISP1080_NVRAM_TGT_TQING(nvram_data, i, bus))
   4079 					sdp->isp_devparam[i].dev_flags |= DPARM_TQING;
   4080 				if (ISP1080_NVRAM_TGT_SYNC(nvram_data, i, bus))
   4081 					sdp->isp_devparam[i].dev_flags |= DPARM_SYNC;
   4082 				if (ISP1080_NVRAM_TGT_WIDE(nvram_data, i, bus))
   4083 					sdp->isp_devparam[i].dev_flags |= DPARM_WIDE;
   4084 				if (ISP1080_NVRAM_TGT_PARITY(nvram_data, i, bus))
   4085 					sdp->isp_devparam[i].dev_flags |= DPARM_PARITY;
   4086 				if (ISP1080_NVRAM_TGT_DISC(nvram_data, i, bus))
   4087 					sdp->isp_devparam[i].dev_flags |= DPARM_DISC;
   4088 				sdp->isp_devparam[i].cur_dflags = 0;
   4089 				if (isp->isp_dblev >= 3) {
   4090 					PRINTF("   Target %d: Ena %d Throttle "
   4091 					    "%d Offset %d Period %d Flags "
   4092 					    "0x%x\n", i,
   4093 					    sdp->isp_devparam[i].dev_enable,
   4094 					    sdp->isp_devparam[i].exc_throttle,
   4095 					    sdp->isp_devparam[i].sync_offset,
   4096 					    sdp->isp_devparam[i].sync_period,
   4097 					    sdp->isp_devparam[i].dev_flags);
   4098 				}
   4099 			}
   4100 		}
   4101 	} else if (IS_SCSI(isp)) {
   4102 		sdparam *sdp = (sdparam *) isp->isp_param;
   4103 
   4104 		sdp->isp_fifo_threshold =
   4105 			ISP_NVRAM_FIFO_THRESHOLD(nvram_data) |
   4106 			(ISP_NVRAM_FIFO_THRESHOLD_128(nvram_data) << 2);
   4107 
   4108 		sdp->isp_initiator_id =
   4109 			ISP_NVRAM_INITIATOR_ID(nvram_data);
   4110 
   4111 		sdp->isp_bus_reset_delay =
   4112 			ISP_NVRAM_BUS_RESET_DELAY(nvram_data);
   4113 
   4114 		sdp->isp_retry_count =
   4115 			ISP_NVRAM_BUS_RETRY_COUNT(nvram_data);
   4116 
   4117 		sdp->isp_retry_delay =
   4118 			ISP_NVRAM_BUS_RETRY_DELAY(nvram_data);
   4119 
   4120 		sdp->isp_async_data_setup =
   4121 			ISP_NVRAM_ASYNC_DATA_SETUP_TIME(nvram_data);
   4122 
   4123 		if (isp->isp_type >= ISP_HA_SCSI_1040) {
   4124 			if (sdp->isp_async_data_setup < 9) {
   4125 				sdp->isp_async_data_setup = 9;
   4126 			}
   4127 		} else {
   4128 			if (sdp->isp_async_data_setup != 6) {
   4129 				sdp->isp_async_data_setup = 6;
   4130 			}
   4131 		}
   4132 
   4133 		sdp->isp_req_ack_active_neg =
   4134 			ISP_NVRAM_REQ_ACK_ACTIVE_NEGATION(nvram_data);
   4135 
   4136 		sdp->isp_data_line_active_neg =
   4137 			ISP_NVRAM_DATA_LINE_ACTIVE_NEGATION(nvram_data);
   4138 
   4139 		sdp->isp_data_dma_burst_enabl =
   4140 			ISP_NVRAM_DATA_DMA_BURST_ENABLE(nvram_data);
   4141 
   4142 		sdp->isp_cmd_dma_burst_enable =
   4143 			ISP_NVRAM_CMD_DMA_BURST_ENABLE(nvram_data);
   4144 
   4145 		sdp->isp_tag_aging =
   4146 			ISP_NVRAM_TAG_AGE_LIMIT(nvram_data);
   4147 
   4148 		sdp->isp_selection_timeout =
   4149 			ISP_NVRAM_SELECTION_TIMEOUT(nvram_data);
   4150 
   4151 		sdp->isp_max_queue_depth =
   4152 			ISP_NVRAM_MAX_QUEUE_DEPTH(nvram_data);
   4153 
   4154 		isp->isp_fast_mttr = ISP_NVRAM_FAST_MTTR_ENABLE(nvram_data);
   4155 		if (isp->isp_dblev > 2) {
   4156 			PRINTF("%s: NVRAM values:\n", isp->isp_name);
   4157 			PRINTF("             Fifo Threshold = 0x%x\n",
   4158 			    sdp->isp_fifo_threshold);
   4159 			PRINTF("            Bus Reset Delay = %d\n",
   4160 			    sdp->isp_bus_reset_delay);
   4161 			PRINTF("                Retry Count = %d\n",
   4162 			    sdp->isp_retry_count);
   4163 			PRINTF("                Retry Delay = %d\n",
   4164 			    sdp->isp_retry_delay);
   4165 			PRINTF("              Tag Age Limit = %d\n",
   4166 			    sdp->isp_tag_aging);
   4167 			PRINTF("          Selection Timeout = %d\n",
   4168 			    sdp->isp_selection_timeout);
   4169 			PRINTF("            Max Queue Depth = %d\n",
   4170 			    sdp->isp_max_queue_depth);
   4171 			PRINTF("           Async Data Setup = 0x%x\n",
   4172 			    sdp->isp_async_data_setup);
   4173 			PRINTF("    REQ/ACK Active Negation = %s\n",
   4174 			    sdp->isp_req_ack_active_neg? tru : not);
   4175 			PRINTF("  Data Line Active Negation = %s\n",
   4176 			    sdp->isp_data_line_active_neg? tru : not);
   4177 			PRINTF("      Data DMA Burst Enable = %s\n",
   4178 			    sdp->isp_data_dma_burst_enabl? tru : not);
   4179 			PRINTF("       Cmd DMA Burst Enable = %s\n",
   4180 			    sdp->isp_cmd_dma_burst_enable? tru : not);
   4181 			PRINTF("                  Fast MTTR = %s\n",
   4182 			    isp->isp_fast_mttr? tru : not);
   4183 		}
   4184 		for (i = 0; i < MAX_TARGETS; i++) {
   4185 			sdp->isp_devparam[i].dev_enable =
   4186 				ISP_NVRAM_TGT_DEVICE_ENABLE(nvram_data, i);
   4187 			sdp->isp_devparam[i].exc_throttle =
   4188 				ISP_NVRAM_TGT_EXEC_THROTTLE(nvram_data, i);
   4189 			sdp->isp_devparam[i].sync_offset =
   4190 				ISP_NVRAM_TGT_SYNC_OFFSET(nvram_data, i);
   4191 			sdp->isp_devparam[i].sync_period =
   4192 				ISP_NVRAM_TGT_SYNC_PERIOD(nvram_data, i);
   4193 
   4194 			if (isp->isp_type < ISP_HA_SCSI_1040) {
   4195 				/*
   4196 				 * If we're not ultra, we can't possibly
   4197 				 * be a shorter period than this.
   4198 				 */
   4199 				if (sdp->isp_devparam[i].sync_period < 0x19) {
   4200 					sdp->isp_devparam[i].sync_period =
   4201 					    0x19;
   4202 				}
   4203 				if (sdp->isp_devparam[i].sync_offset > 0xc) {
   4204 					sdp->isp_devparam[i].sync_offset =
   4205 					    0x0c;
   4206 				}
   4207 			} else {
   4208 				if (sdp->isp_devparam[i].sync_offset > 0x8) {
   4209 					sdp->isp_devparam[i].sync_offset = 0x8;
   4210 				}
   4211 			}
   4212 			sdp->isp_devparam[i].dev_flags = 0;
   4213 			if (ISP_NVRAM_TGT_RENEG(nvram_data, i))
   4214 				sdp->isp_devparam[i].dev_flags |= DPARM_RENEG;
   4215 			if (ISP_NVRAM_TGT_QFRZ(nvram_data, i)) {
   4216 				PRINTF("%s: not supporting QFRZ option for "
   4217 				    "target %d\n", isp->isp_name, i);
   4218 			}
   4219 			sdp->isp_devparam[i].dev_flags |= DPARM_ARQ;
   4220 			if (ISP_NVRAM_TGT_ARQ(nvram_data, i) == 0) {
   4221 				PRINTF("%s: not disabling ARQ option for "
   4222 				    "target %d\n", isp->isp_name, i);
   4223 			}
   4224 			if (ISP_NVRAM_TGT_TQING(nvram_data, i))
   4225 				sdp->isp_devparam[i].dev_flags |= DPARM_TQING;
   4226 			if (ISP_NVRAM_TGT_SYNC(nvram_data, i))
   4227 				sdp->isp_devparam[i].dev_flags |= DPARM_SYNC;
   4228 			if (ISP_NVRAM_TGT_WIDE(nvram_data, i))
   4229 				sdp->isp_devparam[i].dev_flags |= DPARM_WIDE;
   4230 			if (ISP_NVRAM_TGT_PARITY(nvram_data, i))
   4231 				sdp->isp_devparam[i].dev_flags |= DPARM_PARITY;
   4232 			if (ISP_NVRAM_TGT_DISC(nvram_data, i))
   4233 				sdp->isp_devparam[i].dev_flags |= DPARM_DISC;
   4234 			sdp->isp_devparam[i].cur_dflags = 0; /* we don't know */
   4235 			if (isp->isp_dblev > 2) {
   4236 				PRINTF("   Target %d: Enabled %d Throttle %d "
   4237 				    "Offset %d Period %d Flags 0x%x\n", i,
   4238 				    sdp->isp_devparam[i].dev_enable,
   4239 				    sdp->isp_devparam[i].exc_throttle,
   4240 				    sdp->isp_devparam[i].sync_offset,
   4241 				    sdp->isp_devparam[i].sync_period,
   4242 				    sdp->isp_devparam[i].dev_flags);
   4243 			}
   4244 		}
   4245 	} else {
   4246 		fcparam *fcp = (fcparam *) isp->isp_param;
   4247 		union {
   4248 			struct {
   4249 #if	BYTE_ORDER == BIG_ENDIAN
   4250 				u_int32_t hi32;
   4251 				u_int32_t lo32;
   4252 #else
   4253 				u_int32_t lo32;
   4254 				u_int32_t hi32;
   4255 #endif
   4256 			} wd;
   4257 			u_int64_t full64;
   4258 		} wwnstore;
   4259 
   4260 		wwnstore.full64 = ISP2100_NVRAM_NODE_NAME(nvram_data);
   4261 		/*
   4262 		 * Broken PTI cards with nothing in the top nibble. Pah.
   4263 		 */
   4264 		if ((wwnstore.wd.hi32 >> 28) == 0) {
   4265 			wwnstore.wd.hi32 |= (2 << 28);
   4266 			CFGPRINTF("%s: (corrected) Adapter WWN 0x%08x%08x\n",
   4267 			    isp->isp_name, wwnstore.wd.hi32, wwnstore.wd.lo32);
   4268 		} else {
   4269 			CFGPRINTF("%s: Adapter WWN 0x%08x%08x\n", isp->isp_name,
   4270 			    wwnstore.wd.hi32, wwnstore.wd.lo32);
   4271 		}
   4272 		fcp->isp_nodewwn = wwnstore.full64;
   4273 
   4274 		/*
   4275 		 * If the Node WWN has 2 in the top nibble, we can
   4276 		 * authoritatively construct a Port WWN by adding
   4277 		 * our unit number (plus one to make it nonzero) and
   4278 		 * putting it into bits 59..56. If the top nibble isn't
   4279 		 * 2, then we just set them identically.
   4280 		 */
   4281 		if ((fcp->isp_nodewwn >> 60) == 2) {
   4282 			fcp->isp_portwwn = fcp->isp_nodewwn |
   4283 			    (((u_int64_t)(isp->isp_unit+1)) << 56);
   4284 		} else {
   4285 			fcp->isp_portwwn = fcp->isp_nodewwn;
   4286 		}
   4287 		wwnstore.full64 = ISP2100_NVRAM_BOOT_NODE_NAME(nvram_data);
   4288 		if (wwnstore.full64 != 0) {
   4289 			PRINTF("%s: BOOT DEVICE WWN 0x%08x%08x\n",
   4290 			    isp->isp_name, wwnstore.wd.hi32, wwnstore.wd.lo32);
   4291 		}
   4292 		fcp->isp_maxalloc =
   4293 			ISP2100_NVRAM_MAXIOCBALLOCATION(nvram_data);
   4294 		fcp->isp_maxfrmlen =
   4295 			ISP2100_NVRAM_MAXFRAMELENGTH(nvram_data);
   4296 		fcp->isp_retry_delay =
   4297 			ISP2100_NVRAM_RETRY_DELAY(nvram_data);
   4298 		fcp->isp_retry_count =
   4299 			ISP2100_NVRAM_RETRY_COUNT(nvram_data);
   4300 		fcp->isp_loopid =
   4301 			ISP2100_NVRAM_HARDLOOPID(nvram_data);
   4302 		fcp->isp_execthrottle =
   4303 			ISP2100_NVRAM_EXECUTION_THROTTLE(nvram_data);
   4304 		fcp->isp_fwoptions = ISP2100_NVRAM_OPTIONS(nvram_data);
   4305 		if (isp->isp_dblev > 2) {
   4306 			PRINTF("%s: NVRAM values:\n", isp->isp_name);
   4307 			PRINTF("  Max IOCB Allocation = %d\n",
   4308 			    fcp->isp_maxalloc);
   4309 			PRINTF("     Max Frame Length = %d\n",
   4310 			    fcp->isp_maxfrmlen);
   4311 			PRINTF("   Execution Throttle = %d\n",
   4312 			    fcp->isp_execthrottle);
   4313 			PRINTF("          Retry Count = %d\n",
   4314 			    fcp->isp_retry_count);
   4315 			PRINTF("          Retry Delay = %d\n",
   4316 			    fcp->isp_retry_delay);
   4317 			PRINTF("         Hard Loop ID = %d\n",
   4318 			    fcp->isp_loopid);
   4319 			PRINTF("              Options = 0x%x\n",
   4320 			    fcp->isp_fwoptions);
   4321 			PRINTF("          HBA Options = 0x%x\n",
   4322 			    ISP2100_NVRAM_HBA_OPTIONS(nvram_data));
   4323 		}
   4324 	}
   4325 	IDPRINTF(3, ("%s: NVRAM is valid\n", isp->isp_name));
   4326 	return (0);
   4327 }
   4328 
   4329 static void
   4330 isp_rdnvram_word(isp, wo, rp)
   4331 	struct ispsoftc *isp;
   4332 	int wo;
   4333 	u_int16_t *rp;
   4334 {
   4335 	int i, cbits;
   4336 	u_int16_t bit, rqst;
   4337 
   4338 	ISP_WRITE(isp, BIU_NVRAM, BIU_NVRAM_SELECT);
   4339 	SYS_DELAY(2);
   4340 	ISP_WRITE(isp, BIU_NVRAM, BIU_NVRAM_SELECT|BIU_NVRAM_CLOCK);
   4341 	SYS_DELAY(2);
   4342 
   4343 	if (IS_FC(isp)) {
   4344 		wo &= ((ISP2100_NVRAM_SIZE >> 1) - 1);
   4345 		rqst = (ISP_NVRAM_READ << 8) | wo;
   4346 		cbits = 10;
   4347 	} else if (IS_1080(isp) || IS_12X0(isp)) {
   4348 		wo &= ((ISP1080_NVRAM_SIZE >> 1) - 1);
   4349 		rqst = (ISP_NVRAM_READ << 8) | wo;
   4350 		cbits = 10;
   4351 	} else {
   4352 		wo &= ((ISP_NVRAM_SIZE >> 1) - 1);
   4353 		rqst = (ISP_NVRAM_READ << 6) | wo;
   4354 		cbits = 8;
   4355 	}
   4356 
   4357 	/*
   4358 	 * Clock the word select request out...
   4359 	 */
   4360 	for (i = cbits; i >= 0; i--) {
   4361 		if ((rqst >> i) & 1) {
   4362 			bit = BIU_NVRAM_SELECT | BIU_NVRAM_DATAOUT;
   4363 		} else {
   4364 			bit = BIU_NVRAM_SELECT;
   4365 		}
   4366 		ISP_WRITE(isp, BIU_NVRAM, bit);
   4367 		SYS_DELAY(2);
   4368 		ISP_WRITE(isp, BIU_NVRAM, bit | BIU_NVRAM_CLOCK);
   4369 		SYS_DELAY(2);
   4370 		ISP_WRITE(isp, BIU_NVRAM, bit);
   4371 		SYS_DELAY(2);
   4372 	}
   4373 	/*
   4374 	 * Now read the result back in (bits come back in MSB format).
   4375 	 */
   4376 	*rp = 0;
   4377 	for (i = 0; i < 16; i++) {
   4378 		u_int16_t rv;
   4379 		*rp <<= 1;
   4380 		ISP_WRITE(isp, BIU_NVRAM, BIU_NVRAM_SELECT|BIU_NVRAM_CLOCK);
   4381 		SYS_DELAY(2);
   4382 		rv = ISP_READ(isp, BIU_NVRAM);
   4383 		if (rv & BIU_NVRAM_DATAIN) {
   4384 			*rp |= 1;
   4385 		}
   4386 		SYS_DELAY(2);
   4387 		ISP_WRITE(isp, BIU_NVRAM, BIU_NVRAM_SELECT);
   4388 		SYS_DELAY(2);
   4389 	}
   4390 	ISP_WRITE(isp, BIU_NVRAM, 0);
   4391 	SYS_DELAY(2);
   4392 #if	BYTE_ORDER == BIG_ENDIAN
   4393 	*rp = ((*rp >> 8) | ((*rp & 0xff) << 8));
   4394 #endif
   4395 }
   4396