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isp.c revision 1.44
      1 /* $NetBSD: isp.c,v 1.44 1999/12/16 05:35:42 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 (so we can read the SXP registers).
    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_1240(isp)) {
    175 		sdparam *sdp = isp->isp_param;
    176 		revname = "1240";
    177 		isp->isp_clock = 60;
    178 		sdp->isp_ultramode = 1;
    179 		sdp++;
    180 		sdp->isp_ultramode = 1;
    181 		/*
    182 		 * XXX: Should probably do some bus sensing.
    183 		 */
    184 	} else if (IS_ULTRA2(isp)) {
    185 		static char *m = "%s: bus %d is in %s Mode\n";
    186 		u_int16_t l;
    187 		sdparam *sdp = isp->isp_param;
    188 
    189 		isp->isp_clock = 100;
    190 
    191 		revname = "1080";
    192 		l = ISP_READ(isp, SXP_PINS_DIFF) & ISP1080_MODE_MASK;
    193 		switch (l) {
    194 		case ISP1080_LVD_MODE:
    195 			sdp->isp_lvdmode = 1;
    196 			CFGPRINTF(m, isp->isp_name, 0, "LVD");
    197 			break;
    198 		case ISP1080_HVD_MODE:
    199 			sdp->isp_diffmode = 1;
    200 			CFGPRINTF(m, isp->isp_name, 0, "Differential");
    201 			break;
    202 		case ISP1080_SE_MODE:
    203 			sdp->isp_ultramode = 1;
    204 			CFGPRINTF(m, isp->isp_name, 0, "Single-Ended");
    205 			break;
    206 		default:
    207 			CFGPRINTF("%s: unknown mode on bus %d (0x%x)\n",
    208 			    isp->isp_name, 0, l);
    209 			break;
    210 		}
    211 
    212 		if (IS_1280(isp)) {
    213 			sdp++;
    214 			revname[1] = '2';
    215 			l = ISP_READ(isp, SXP_PINS_DIFF|SXP_BANK1_SELECT);
    216 			l &= ISP1080_MODE_MASK;
    217 			switch(l) {
    218 			case ISP1080_LVD_MODE:
    219 				sdp->isp_lvdmode = 1;
    220 				CFGPRINTF(m, isp->isp_name, 1, "LVD");
    221 				break;
    222 			case ISP1080_HVD_MODE:
    223 				sdp->isp_diffmode = 1;
    224 				CFGPRINTF(m, isp->isp_name, 1, "Differential");
    225 				break;
    226 			case ISP1080_SE_MODE:
    227 				sdp->isp_ultramode = 1;
    228 				CFGPRINTF(m, isp->isp_name, 1, "Single-Ended");
    229 				break;
    230 			default:
    231 				CFGPRINTF("%s: unknown mode on bus %d (0x%x)\n",
    232 				    isp->isp_name, 1, l);
    233 				break;
    234 			}
    235 		}
    236 	} else {
    237 		sdparam *sdp = isp->isp_param;
    238 		i = ISP_READ(isp, BIU_CONF0) & BIU_CONF0_HW_MASK;
    239 		switch (i) {
    240 		default:
    241 			PRINTF("%s: unknown chip rev. 0x%x- assuming a 1020\n",
    242 			    isp->isp_name, i);
    243 			/* FALLTHROUGH */
    244 		case 1:
    245 			revname = "1020";
    246 			isp->isp_type = ISP_HA_SCSI_1020;
    247 			isp->isp_clock = 40;
    248 			break;
    249 		case 2:
    250 			/*
    251 			 * Some 1020A chips are Ultra Capable, but don't
    252 			 * run the clock rate up for that unless told to
    253 			 * do so by the Ultra Capable bits being set.
    254 			 */
    255 			revname = "1020A";
    256 			isp->isp_type = ISP_HA_SCSI_1020A;
    257 			isp->isp_clock = 40;
    258 			break;
    259 		case 3:
    260 			revname = "1040";
    261 			isp->isp_type = ISP_HA_SCSI_1040;
    262 			isp->isp_clock = 60;
    263 			break;
    264 		case 4:
    265 			revname = "1040A";
    266 			isp->isp_type = ISP_HA_SCSI_1040A;
    267 			isp->isp_clock = 60;
    268 			break;
    269 		case 5:
    270 			revname = "1040B";
    271 			isp->isp_type = ISP_HA_SCSI_1040B;
    272 			isp->isp_clock = 60;
    273 			break;
    274 		case 6:
    275 			revname = "1040C";
    276 			isp->isp_type = ISP_HA_SCSI_1040C;
    277 			isp->isp_clock = 60;
    278                         break;
    279 		}
    280 		/*
    281 		 * Now, while we're at it, gather info about ultra
    282 		 * and/or differential mode.
    283 		 */
    284 		if (ISP_READ(isp, SXP_PINS_DIFF) & SXP_PINS_DIFF_MODE) {
    285 			CFGPRINTF("%s: Differential Mode\n", isp->isp_name);
    286 			sdp->isp_diffmode = 1;
    287 		} else {
    288 			sdp->isp_diffmode = 0;
    289 		}
    290 		i = ISP_READ(isp, RISC_PSR);
    291 		if (isp->isp_bustype == ISP_BT_SBUS) {
    292 			i &= RISC_PSR_SBUS_ULTRA;
    293 		} else {
    294 			i &= RISC_PSR_PCI_ULTRA;
    295 		}
    296 		if (i != 0) {
    297 			CFGPRINTF("%s: Ultra Mode Capable\n", isp->isp_name);
    298 			sdp->isp_ultramode = 1;
    299 			/*
    300 			 * If we're in Ultra Mode, we have to be 60Mhz clock-
    301 			 * even for the SBus version.
    302 			 */
    303 			isp->isp_clock = 60;
    304 		} else {
    305 			sdp->isp_ultramode = 0;
    306 			/*
    307 			 * Clock is known. Gronk.
    308 			 */
    309 		}
    310 
    311 		/*
    312 		 * Machine dependent clock (if set) overrides
    313 		 * our generic determinations.
    314 		 */
    315 		if (isp->isp_mdvec->dv_clock) {
    316 			if (isp->isp_mdvec->dv_clock < isp->isp_clock) {
    317 				isp->isp_clock = isp->isp_mdvec->dv_clock;
    318 			}
    319 		}
    320 
    321 	}
    322 
    323 	/*
    324 	 * Do MD specific pre initialization
    325 	 */
    326 	ISP_RESET0(isp);
    327 
    328 again:
    329 
    330 	/*
    331 	 * Hit the chip over the head with hammer,
    332 	 * and give the ISP a chance to recover.
    333 	 */
    334 
    335 	if (IS_SCSI(isp)) {
    336 		ISP_WRITE(isp, BIU_ICR, BIU_ICR_SOFT_RESET);
    337 		/*
    338 		 * A slight delay...
    339 		 */
    340 		SYS_DELAY(100);
    341 
    342 #if	0
    343 		PRINTF("%s: mbox0-5: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n",
    344 		    isp->isp_name, ISP_READ(isp, OUTMAILBOX0),
    345 		    ISP_READ(isp, OUTMAILBOX1), ISP_READ(isp, OUTMAILBOX2),
    346 		    ISP_READ(isp, OUTMAILBOX3), ISP_READ(isp, OUTMAILBOX4),
    347 		    ISP_READ(isp, OUTMAILBOX5));
    348 #endif
    349 
    350 		/*
    351 		 * Clear data && control DMA engines.
    352 		 */
    353 		ISP_WRITE(isp, CDMA_CONTROL,
    354 		    DMA_CNTRL_CLEAR_CHAN | DMA_CNTRL_RESET_INT);
    355 		ISP_WRITE(isp, DDMA_CONTROL,
    356 		    DMA_CNTRL_CLEAR_CHAN | DMA_CNTRL_RESET_INT);
    357 
    358 
    359 	} else {
    360 		ISP_WRITE(isp, BIU2100_CSR, BIU2100_SOFT_RESET);
    361 		/*
    362 		 * A slight delay...
    363 		 */
    364 		SYS_DELAY(100);
    365 
    366 		/*
    367 		 * Clear data && control DMA engines.
    368 		 */
    369 		ISP_WRITE(isp, CDMA2100_CONTROL,
    370 			DMA_CNTRL2100_CLEAR_CHAN | DMA_CNTRL2100_RESET_INT);
    371 		ISP_WRITE(isp, TDMA2100_CONTROL,
    372 			DMA_CNTRL2100_CLEAR_CHAN | DMA_CNTRL2100_RESET_INT);
    373 		ISP_WRITE(isp, RDMA2100_CONTROL,
    374 			DMA_CNTRL2100_CLEAR_CHAN | DMA_CNTRL2100_RESET_INT);
    375 	}
    376 
    377 	/*
    378 	 * Wait for ISP to be ready to go...
    379 	 */
    380 	loops = MBOX_DELAY_COUNT;
    381 	for (;;) {
    382 		if (IS_SCSI(isp)) {
    383 			if (!(ISP_READ(isp, BIU_ICR) & BIU_ICR_SOFT_RESET))
    384 				break;
    385 		} else {
    386 			if (!(ISP_READ(isp, BIU2100_CSR) & BIU2100_SOFT_RESET))
    387 				break;
    388 		}
    389 		SYS_DELAY(100);
    390 		if (--loops < 0) {
    391 			isp_dumpregs(isp, "chip reset timed out");
    392 			return;
    393 		}
    394 	}
    395 
    396 	/*
    397 	 * After we've fired this chip up, zero out the conf1 register
    398 	 * for SCSI adapters and other settings for the 2100.
    399 	 */
    400 
    401 	if (IS_SCSI(isp)) {
    402 		ISP_WRITE(isp, BIU_CONF1, 0);
    403 	} else {
    404 		ISP_WRITE(isp, BIU2100_CSR, 0);
    405 	}
    406 
    407 	/*
    408 	 * Reset RISC Processor
    409 	 */
    410 	ISP_WRITE(isp, HCCR, HCCR_CMD_RESET);
    411 	SYS_DELAY(100);
    412 
    413 	/*
    414 	 * Establish some initial burst rate stuff.
    415 	 * (only for the 1XX0 boards). This really should
    416 	 * be done later after fetching from NVRAM.
    417 	 */
    418 	if (IS_SCSI(isp)) {
    419 		u_int16_t tmp = isp->isp_mdvec->dv_conf1;
    420 		/*
    421 		 * Busted FIFO. Turn off all but burst enables.
    422 		 */
    423 		if (isp->isp_type == ISP_HA_SCSI_1040A) {
    424 			tmp &= BIU_BURST_ENABLE;
    425 		}
    426 		ISP_SETBITS(isp, BIU_CONF1, tmp);
    427 		if (tmp & BIU_BURST_ENABLE) {
    428 			ISP_SETBITS(isp, CDMA_CONF, DMA_ENABLE_BURST);
    429 			ISP_SETBITS(isp, DDMA_CONF, DMA_ENABLE_BURST);
    430 		}
    431 #ifdef	PTI_CARDS
    432 		if (((sdparam *) isp->isp_param)->isp_ultramode) {
    433 			while (ISP_READ(isp, RISC_MTR) != 0x1313) {
    434 				ISP_WRITE(isp, RISC_MTR, 0x1313);
    435 				ISP_WRITE(isp, HCCR, HCCR_CMD_STEP);
    436 			}
    437 		} else {
    438 			ISP_WRITE(isp, RISC_MTR, 0x1212);
    439 		}
    440 		/*
    441 		 * PTI specific register
    442 		 */
    443 		ISP_WRITE(isp, RISC_EMB, DUAL_BANK)
    444 #else
    445 		ISP_WRITE(isp, RISC_MTR, 0x1212);
    446 #endif
    447 	} else {
    448 		ISP_WRITE(isp, RISC_MTR2100, 0x1212);
    449 	}
    450 
    451 	ISP_WRITE(isp, HCCR, HCCR_CMD_RELEASE); /* release paused processor */
    452 
    453 	/*
    454 	 * Do MD specific post initialization
    455 	 */
    456 	ISP_RESET1(isp);
    457 
    458 	/*
    459 	 * Wait for everything to finish firing up...
    460 	 */
    461 	loops = MBOX_DELAY_COUNT;
    462 	while (ISP_READ(isp, OUTMAILBOX0) == MBOX_BUSY) {
    463 		SYS_DELAY(100);
    464 		if (--loops < 0) {
    465 			PRINTF("%s: MBOX_BUSY never cleared on reset\n",
    466 			    isp->isp_name);
    467 			return;
    468 		}
    469 	}
    470 
    471 	/*
    472 	 * Up until this point we've done everything by just reading or
    473 	 * setting registers. From this point on we rely on at least *some*
    474 	 * kind of firmware running in the card.
    475 	 */
    476 
    477 	/*
    478 	 * Do some sanity checking.
    479 	 */
    480 	mbs.param[0] = MBOX_NO_OP;
    481 	isp_mboxcmd(isp, &mbs);
    482 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    483 		isp_dumpregs(isp, "NOP test failed");
    484 		return;
    485 	}
    486 
    487 	if (IS_SCSI(isp)) {
    488 		mbs.param[0] = MBOX_MAILBOX_REG_TEST;
    489 		mbs.param[1] = 0xdead;
    490 		mbs.param[2] = 0xbeef;
    491 		mbs.param[3] = 0xffff;
    492 		mbs.param[4] = 0x1111;
    493 		mbs.param[5] = 0xa5a5;
    494 		isp_mboxcmd(isp, &mbs);
    495 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    496 			isp_dumpregs(isp,
    497 				"Mailbox Register test didn't complete");
    498 			return;
    499 		}
    500 		if (mbs.param[1] != 0xdead || mbs.param[2] != 0xbeef ||
    501 		    mbs.param[3] != 0xffff || mbs.param[4] != 0x1111 ||
    502 		    mbs.param[5] != 0xa5a5) {
    503 			isp_dumpregs(isp, "Register Test Failed");
    504 			return;
    505 		}
    506 
    507 	}
    508 
    509 	/*
    510 	 * Download new Firmware, unless requested not to do so.
    511 	 * This is made slightly trickier in some cases where the
    512 	 * firmware of the ROM revision is newer than the revision
    513 	 * compiled into the driver. So, where we used to compare
    514 	 * versions of our f/w and the ROM f/w, now we just see
    515 	 * whether we have f/w at all and whether a config flag
    516 	 * has disabled our download.
    517 	 */
    518 	if ((isp->isp_mdvec->dv_ispfw == NULL) ||
    519 	    (isp->isp_confopts & ISP_CFG_NORELOAD)) {
    520 		dodnld = 0;
    521 	}
    522 
    523 	if (dodnld) {
    524 		u_int16_t fwlen  = isp->isp_mdvec->dv_fwlen;
    525 		if (fwlen == 0)
    526 			fwlen = isp->isp_mdvec->dv_ispfw[3]; /* usually here */
    527 		for (i = 0; i < fwlen; i++) {
    528 			mbs.param[0] = MBOX_WRITE_RAM_WORD;
    529 			mbs.param[1] = isp->isp_mdvec->dv_codeorg + i;
    530 			mbs.param[2] = isp->isp_mdvec->dv_ispfw[i];
    531 			isp_mboxcmd(isp, &mbs);
    532 			if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    533 				PRINTF("%s: F/W download failed at word %d\n",
    534 				    isp->isp_name, i);
    535 				dodnld = 0;
    536 				goto again;
    537 			}
    538 		}
    539 
    540 		/*
    541 		 * Verify that it downloaded correctly.
    542 		 */
    543 		mbs.param[0] = MBOX_VERIFY_CHECKSUM;
    544 		mbs.param[1] = isp->isp_mdvec->dv_codeorg;
    545 		isp_mboxcmd(isp, &mbs);
    546 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    547 			isp_dumpregs(isp, "ram checksum failure");
    548 			return;
    549 		}
    550 	} else {
    551 		IDPRINTF(3, ("%s: skipping f/w download\n", isp->isp_name));
    552 	}
    553 
    554 	/*
    555 	 * Now start it rolling.
    556 	 *
    557 	 * If we didn't actually download f/w,
    558 	 * we still need to (re)start it.
    559 	 */
    560 
    561 	mbs.param[0] = MBOX_EXEC_FIRMWARE;
    562 	if (isp->isp_mdvec->dv_codeorg)
    563 		mbs.param[1] = isp->isp_mdvec->dv_codeorg;
    564 	else
    565 		mbs.param[1] = 0x1000;
    566 	isp_mboxcmd(isp, &mbs);
    567 
    568 	if (IS_SCSI(isp)) {
    569 		/*
    570 		 * Set CLOCK RATE, but only if asked to.
    571 		 */
    572 		if (isp->isp_clock) {
    573 			mbs.param[0] = MBOX_SET_CLOCK_RATE;
    574 			mbs.param[1] = isp->isp_clock;
    575 			isp_mboxcmd(isp, &mbs);
    576 			if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    577 				PRINTF("failed to set clockrate (0x%x)\n",
    578 				    mbs.param[0]);
    579 				/* but continue */
    580 			}
    581 		}
    582 	}
    583 	mbs.param[0] = MBOX_ABOUT_FIRMWARE;
    584 	isp_mboxcmd(isp, &mbs);
    585 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    586 		PRINTF("could not get f/w started (0x%x)\n", mbs.param[0]);
    587 		return;
    588 	}
    589 	CFGPRINTF("%s: Board Revision %s, %s F/W Revision %d.%d.%d\n",
    590 	    isp->isp_name, revname, dodnld? "loaded" : "resident",
    591 	    mbs.param[1], mbs.param[2], mbs.param[3]);
    592 	if (IS_FC(isp)) {
    593 		if (ISP_READ(isp, BIU2100_CSR) & BIU2100_PCI64) {
    594 			CFGPRINTF("%s: in 64-Bit PCI slot\n", isp->isp_name);
    595 		}
    596 	}
    597 
    598 	isp->isp_fwrev[0] = mbs.param[1];
    599 	isp->isp_fwrev[1] = mbs.param[2];
    600 	isp->isp_fwrev[2] = mbs.param[3];
    601 	if (isp->isp_romfw_rev[0] || isp->isp_romfw_rev[1] ||
    602 	    isp->isp_romfw_rev[2]) {
    603 		CFGPRINTF("%s: Last F/W revision was %d.%d.%d\n", isp->isp_name,
    604 		    isp->isp_romfw_rev[0], isp->isp_romfw_rev[1],
    605 		    isp->isp_romfw_rev[2]);
    606 	}
    607 
    608 	mbs.param[0] = MBOX_GET_FIRMWARE_STATUS;
    609 	isp_mboxcmd(isp, &mbs);
    610 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    611 		PRINTF("%s: could not GET FIRMWARE STATUS\n", isp->isp_name);
    612 		return;
    613 	}
    614 	isp->isp_maxcmds = mbs.param[2];
    615 	CFGPRINTF("%s: %d max I/O commands supported\n",
    616 	    isp->isp_name, mbs.param[2]);
    617 	isp_fw_state(isp);
    618 
    619 	/*
    620 	 * Set up DMA for the request and result mailboxes.
    621 	 */
    622 	if (ISP_MBOXDMASETUP(isp) != 0) {
    623 		PRINTF("%s: can't setup dma mailboxes\n", isp->isp_name);
    624 		return;
    625 	}
    626 	isp->isp_state = ISP_RESETSTATE;
    627 }
    628 
    629 /*
    630  * Initialize Parameters of Hardware to a known state.
    631  *
    632  * Locks are held before coming here.
    633  */
    634 
    635 void
    636 isp_init(isp)
    637 	struct ispsoftc *isp;
    638 {
    639 	/*
    640 	 * Must do this first to get defaults established.
    641 	 */
    642 	isp_setdfltparm(isp, 0);
    643 	if (IS_DUALBUS(isp)) {
    644 		isp_setdfltparm(isp, 1);
    645 	}
    646 
    647 	if (IS_FC(isp)) {
    648 		isp_fibre_init(isp);
    649 	} else {
    650 		isp_scsi_init(isp);
    651 	}
    652 }
    653 
    654 static void
    655 isp_scsi_init(isp)
    656 	struct ispsoftc *isp;
    657 {
    658 	sdparam *sdp_chan0, *sdp_chan1;
    659 	mbreg_t mbs;
    660 
    661 	sdp_chan0 = isp->isp_param;
    662 	sdp_chan1 = sdp_chan0;
    663 	if (IS_DUALBUS(isp)) {
    664 		sdp_chan1++;
    665 	}
    666 
    667 	/* First do overall per-card settings. */
    668 
    669 	/*
    670 	 * If we have fast memory timing enabled, turn it on.
    671 	 */
    672 	if (isp->isp_fast_mttr) {
    673 		ISP_WRITE(isp, RISC_MTR, 0x1313);
    674 	}
    675 
    676 	/*
    677 	 * Set Retry Delay and Count.
    678 	 * You set both channels at the same time.
    679 	 */
    680 	mbs.param[0] = MBOX_SET_RETRY_COUNT;
    681 	mbs.param[1] = sdp_chan0->isp_retry_count;
    682 	mbs.param[2] = sdp_chan0->isp_retry_delay;
    683 	mbs.param[6] = sdp_chan1->isp_retry_count;
    684 	mbs.param[7] = sdp_chan1->isp_retry_delay;
    685 
    686 	isp_mboxcmd(isp, &mbs);
    687 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    688 		PRINTF("%s: failed to set retry count and retry delay\n",
    689 		    isp->isp_name);
    690 		return;
    691 	}
    692 
    693 	/*
    694 	 * Set ASYNC DATA SETUP time. This is very important.
    695 	 */
    696 	mbs.param[0] = MBOX_SET_ASYNC_DATA_SETUP_TIME;
    697 	mbs.param[1] = sdp_chan0->isp_async_data_setup;
    698 	mbs.param[2] = sdp_chan1->isp_async_data_setup;
    699 	isp_mboxcmd(isp, &mbs);
    700 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    701 		PRINTF("%s: failed to set asynchronous data setup time\n",
    702 		    isp->isp_name);
    703 		return;
    704 	}
    705 
    706 	/*
    707 	 * Set ACTIVE Negation State.
    708 	 */
    709 	mbs.param[0] = MBOX_SET_ACT_NEG_STATE;
    710 	mbs.param[1] =
    711 	    (sdp_chan0->isp_req_ack_active_neg << 4) |
    712 	    (sdp_chan0->isp_data_line_active_neg << 5);
    713 	mbs.param[2] =
    714 	    (sdp_chan1->isp_req_ack_active_neg << 4) |
    715 	    (sdp_chan1->isp_data_line_active_neg << 5);
    716 
    717 	isp_mboxcmd(isp, &mbs);
    718 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    719 		PRINTF("%s: failed to set active negation state "
    720 		    "(%d,%d),(%d,%d)\n", isp->isp_name,
    721 		    sdp_chan0->isp_req_ack_active_neg,
    722 		    sdp_chan0->isp_data_line_active_neg,
    723 		    sdp_chan1->isp_req_ack_active_neg,
    724 		    sdp_chan1->isp_data_line_active_neg);
    725 		/*
    726 		 * But don't return.
    727 		 */
    728 	}
    729 
    730 	/*
    731 	 * Set the Tag Aging limit
    732 	 */
    733 	mbs.param[0] = MBOX_SET_TAG_AGE_LIMIT;
    734 	mbs.param[1] = sdp_chan0->isp_tag_aging;
    735 	mbs.param[2] = sdp_chan1->isp_tag_aging;
    736 	isp_mboxcmd(isp, &mbs);
    737 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    738 		PRINTF("%s: failed to set tag age limit (%d,%d)\n",
    739 		    isp->isp_name, sdp_chan0->isp_tag_aging,
    740 		    sdp_chan1->isp_tag_aging);
    741 		return;
    742 	}
    743 
    744 	/*
    745 	 * Set selection timeout.
    746 	 */
    747 	mbs.param[0] = MBOX_SET_SELECT_TIMEOUT;
    748 	mbs.param[1] = sdp_chan0->isp_selection_timeout;
    749 	mbs.param[2] = sdp_chan1->isp_selection_timeout;
    750 	isp_mboxcmd(isp, &mbs);
    751 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    752 		PRINTF("%s: failed to set selection timeout\n", isp->isp_name);
    753 		return;
    754 	}
    755 
    756 	/* now do per-channel settings */
    757 	isp_scsi_channel_init(isp, 0);
    758 	if (IS_DUALBUS(isp))
    759 		isp_scsi_channel_init(isp, 1);
    760 
    761 	/*
    762 	 * Now enable request/response queues
    763 	 */
    764 
    765 	mbs.param[0] = MBOX_INIT_RES_QUEUE;
    766 	mbs.param[1] = RESULT_QUEUE_LEN;
    767 	mbs.param[2] = DMA_MSW(isp->isp_result_dma);
    768 	mbs.param[3] = DMA_LSW(isp->isp_result_dma);
    769 	mbs.param[4] = 0;
    770 	mbs.param[5] = 0;
    771 	isp_mboxcmd(isp, &mbs);
    772 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    773 		PRINTF("%s: set of response queue failed\n", isp->isp_name);
    774 		return;
    775 	}
    776 	isp->isp_residx = 0;
    777 
    778 	mbs.param[0] = MBOX_INIT_REQ_QUEUE;
    779 	mbs.param[1] = RQUEST_QUEUE_LEN;
    780 	mbs.param[2] = DMA_MSW(isp->isp_rquest_dma);
    781 	mbs.param[3] = DMA_LSW(isp->isp_rquest_dma);
    782 	mbs.param[4] = 0;
    783 	mbs.param[5] = 0;
    784 	isp_mboxcmd(isp, &mbs);
    785 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    786 		PRINTF("%s: set of request queue failed\n", isp->isp_name);
    787 		return;
    788 	}
    789 	isp->isp_reqidx = isp->isp_reqodx = 0;
    790 
    791 	/*
    792 	 *  Turn on Fast Posting, LVD transitions
    793 	 */
    794 
    795 	if (IS_ULTRA2(isp) ||
    796 	    ISP_FW_REVX(isp->isp_fwrev) >= ISP_FW_REV(7, 55, 0)) {
    797 		mbs.param[0] = MBOX_SET_FW_FEATURES;
    798 #ifndef	ISP_NO_FASTPOST_SCSI
    799 		mbs.param[1] |= FW_FEATURE_FAST_POST;
    800 #else
    801 		mbs.param[1] = 0;
    802 #endif
    803 		if (IS_ULTRA2(isp))
    804 			mbs.param[1] |= FW_FEATURE_LVD_NOTIFY;
    805 		if (mbs.param[1] != 0) {
    806 			isp_mboxcmd(isp, &mbs);
    807 			if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    808 				PRINTF("%s: unable enable FW features\n",
    809 				    isp->isp_name);
    810 			}
    811 		}
    812 	}
    813 
    814 	/*
    815 	 * Let the outer layers decide whether to issue a SCSI bus reset.
    816 	 */
    817 	isp->isp_state = ISP_INITSTATE;
    818 }
    819 
    820 static void
    821 isp_scsi_channel_init(isp, channel)
    822 	struct ispsoftc *isp;
    823 	int channel;
    824 {
    825 	sdparam *sdp;
    826 	mbreg_t mbs;
    827 	int tgt;
    828 
    829 	sdp = isp->isp_param;
    830 	sdp += channel;
    831 
    832 	/*
    833 	 * Set (possibly new) Initiator ID.
    834 	 */
    835 	mbs.param[0] = MBOX_SET_INIT_SCSI_ID;
    836 	mbs.param[1] = (channel << 7) | sdp->isp_initiator_id;
    837 	isp_mboxcmd(isp, &mbs);
    838 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    839 		PRINTF("%s: cannot set initiator id on bus %d to %d\n",
    840 		    isp->isp_name, channel, sdp->isp_initiator_id);
    841 		return;
    842 	}
    843 
    844 	/*
    845 	 * Set current per-target parameters to a safe minimum.
    846 	 */
    847 	for (tgt = 0; tgt < MAX_TARGETS; tgt++) {
    848 		int maxlun, lun;
    849 		u_int16_t sdf;
    850 
    851 		if (sdp->isp_devparam[tgt].dev_enable == 0) {
    852 			IDPRINTF(1, ("%s: skipping target %d bus %d settings\n",
    853 			    isp->isp_name, tgt, channel));
    854 			continue;
    855 		}
    856 
    857 		/*
    858 		 * If we're in LVD mode, then we pretty much should
    859 		 * only disable tagged queuing.
    860 		 */
    861 		if (IS_ULTRA2(isp) && sdp->isp_lvdmode) {
    862 			sdf = DPARM_DEFAULT & ~DPARM_TQING;
    863 		} else {
    864 			sdf = DPARM_SAFE_DFLT;
    865 			/*
    866 			 * It is not quite clear when this changed over so that
    867 			 * we could force narrow and async, so assume >= 7.55.
    868 			 */
    869 			if (ISP_FW_REVX(isp->isp_fwrev) >=
    870 			    ISP_FW_REV(7, 55, 0)) {
    871 				sdf |= DPARM_NARROW | DPARM_ASYNC;
    872 			}
    873 		}
    874 		mbs.param[0] = MBOX_SET_TARGET_PARAMS;
    875 		mbs.param[1] = (tgt << 8) | (channel << 15);
    876 		mbs.param[2] = sdf;
    877 		mbs.param[3] =
    878 		    (sdp->isp_devparam[tgt].sync_offset << 8) |
    879 		    (sdp->isp_devparam[tgt].sync_period);
    880 		isp_mboxcmd(isp, &mbs);
    881 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    882 			sdf = DPARM_SAFE_DFLT;
    883 			mbs.param[0] = MBOX_SET_TARGET_PARAMS;
    884 			mbs.param[1] = (tgt << 8) | (channel << 15);
    885 			mbs.param[2] = sdf;
    886 			mbs.param[3] =
    887 			    (sdp->isp_devparam[tgt].sync_offset << 8) |
    888 			    (sdp->isp_devparam[tgt].sync_period);
    889 			isp_mboxcmd(isp, &mbs);
    890 			if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    891 				PRINTF("%s: failed even to set defaults for "
    892 				    "target %d\n", isp->isp_name, tgt);
    893 				continue;
    894 			}
    895 		}
    896 
    897 #if	0
    898 		/*
    899 		 * We don't update dev_flags with what we've set
    900 		 * because that's not the ultimate goal setting.
    901 		 * If we succeed with the command, we *do* update
    902 		 * cur_dflags by getting target parameters.
    903 		 */
    904 		mbs.param[0] = MBOX_GET_TARGET_PARAMS;
    905 		mbs.param[1] = (tgt << 8) | (channel << 15);
    906 		isp_mboxcmd(isp, &mbs);
    907 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    908 			/*
    909 			 * Urrr.... We'll set cur_dflags to DPARM_SAFE_DFLT so
    910 			 * we don't try and do tags if tags aren't enabled.
    911 			 */
    912 			sdp->isp_devparam[tgt].cur_dflags = DPARM_SAFE_DFLT;
    913 		} else {
    914 			sdp->isp_devparam[tgt].cur_dflags = mbs.param[2];
    915 			sdp->isp_devparam[tgt].cur_offset = mbs.param[3] >> 8;
    916 			sdp->isp_devparam[tgt].cur_period = mbs.param[3] & 0xff;
    917 		}
    918 		IDPRINTF(3, ("%s: set flags 0x%x got 0x%x back for target %d\n",
    919 		    isp->isp_name, sdf, mbs.param[2], tgt));
    920 #else
    921 		/*
    922 		 * We don't update any information because we need to run
    923 		 * at least one command per target to cause a new state
    924 		 * to be latched.
    925 		 */
    926 #endif
    927 		/*
    928 		 * Ensure that we don't believe tagged queuing is enabled yet.
    929 		 * It turns out that sometimes the ISP just ignores our
    930 		 * attempts to set parameters for devices that it hasn't
    931 		 * seen yet.
    932 		 */
    933 		sdp->isp_devparam[tgt].cur_dflags &= ~DPARM_TQING;
    934 		if (ISP_FW_REVX(isp->isp_fwrev) >= ISP_FW_REV(7, 55, 0))
    935 			maxlun = 32;
    936 		else
    937 			maxlun = 8;
    938 		for (lun = 0; lun < maxlun; lun++) {
    939 			mbs.param[0] = MBOX_SET_DEV_QUEUE_PARAMS;
    940 			mbs.param[1] = (channel << 15) | (tgt << 8) | lun;
    941 			mbs.param[2] = sdp->isp_max_queue_depth;
    942 			mbs.param[3] = sdp->isp_devparam[tgt].exc_throttle;
    943 			isp_mboxcmd(isp, &mbs);
    944 			if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    945 				PRINTF("%s: failed to set device queue "
    946 				    "parameters for target %d, lun %d\n",
    947 				    isp->isp_name, tgt, lun);
    948 				break;
    949 			}
    950 		}
    951 	}
    952 }
    953 
    954 /*
    955  * Fibre Channel specific initialization.
    956  *
    957  * Locks are held before coming here.
    958  */
    959 static void
    960 isp_fibre_init(isp)
    961 	struct ispsoftc *isp;
    962 {
    963 	fcparam *fcp;
    964 	isp_icb_t *icbp;
    965 	mbreg_t mbs;
    966 	int loopid;
    967 
    968 	fcp = isp->isp_param;
    969 
    970 	/*
    971 	 * For systems that don't have BIOS methods for which
    972 	 * we can easily change the NVRAM based loopid, we'll
    973 	 * override that here. Note that when we initialize
    974 	 * the firmware we may get back a different loopid than
    975 	 * we asked for anyway. XXX This is probably not the
    976 	 * best way to figure this out XXX
    977 	 */
    978 #ifndef	__i386__
    979 	loopid = DEFAULT_LOOPID(isp);
    980 #else
    981 	loopid = fcp->isp_loopid;
    982 #endif
    983 
    984 	icbp = (isp_icb_t *) fcp->isp_scratch;
    985 	MEMZERO(icbp, sizeof (*icbp));
    986 
    987 	icbp->icb_version = ICB_VERSION1;
    988 #ifdef	ISP_TARGET_MODE
    989 	fcp->isp_fwoptions = ICBOPT_TGT_ENABLE;
    990 #else
    991 	fcp->isp_fwoptions = 0;
    992 #endif
    993 
    994 	fcp->isp_fwoptions |= ICBOPT_FAIRNESS;
    995 	/*
    996 	 * If this is a 2100 < revision 5, we have to turn off FAIRNESS.
    997 	 */
    998 	if ((isp->isp_type == ISP_HA_FC_2100) && isp->isp_revision < 5) {
    999 		fcp->isp_fwoptions &= ~ICBOPT_FAIRNESS;
   1000 	}
   1001 	fcp->isp_fwoptions |= ICBOPT_PDBCHANGE_AE;
   1002 	fcp->isp_fwoptions |= ICBOPT_HARD_ADDRESS;
   1003 	/*
   1004 	 * We have to use FULL LOGIN even though it resets the loop too much
   1005 	 * because otherwise port database entries don't get updated after
   1006 	 * a LIP- this is a known f/w bug.
   1007 	 */
   1008 	if (ISP_FW_REVX(isp->isp_fwrev) < ISP_FW_REV(1, 17, 0)) {
   1009 		fcp->isp_fwoptions |= ICBOPT_FULL_LOGIN;
   1010 	}
   1011 #ifndef	ISP_NO_FASTPOST_FC
   1012 	fcp->isp_fwoptions |= ICBOPT_FAST_POST;
   1013 #endif
   1014 	if (isp->isp_confopts & ISP_CFG_FULL_DUPLEX)
   1015 		fcp->isp_fwoptions |= ICBOPT_FULL_DUPLEX;
   1016 
   1017 	/*
   1018 	 * We don't set ICBOPT_PORTNAME because we want our
   1019 	 * Node Name && Port Names to be distinct.
   1020 	 */
   1021 
   1022 	icbp->icb_fwoptions = fcp->isp_fwoptions;
   1023 	icbp->icb_maxfrmlen = fcp->isp_maxfrmlen;
   1024 	if (icbp->icb_maxfrmlen < ICB_MIN_FRMLEN ||
   1025 	    icbp->icb_maxfrmlen > ICB_MAX_FRMLEN) {
   1026 		PRINTF("%s: bad frame length (%d) from NVRAM- using %d\n",
   1027 		    isp->isp_name, fcp->isp_maxfrmlen, ICB_DFLT_FRMLEN);
   1028 		icbp->icb_maxfrmlen = ICB_DFLT_FRMLEN;
   1029 	}
   1030 	icbp->icb_maxalloc = fcp->isp_maxalloc;
   1031 	if (icbp->icb_maxalloc < 1) {
   1032 		PRINTF("%s: bad maximum allocation (%d)- using 16\n",
   1033 		     isp->isp_name, fcp->isp_maxalloc);
   1034 		icbp->icb_maxalloc = 16;
   1035 	}
   1036 	icbp->icb_execthrottle = fcp->isp_execthrottle;
   1037 	if (icbp->icb_execthrottle < 1) {
   1038 		PRINTF("%s: bad execution throttle of %d- using 16\n",
   1039 		    isp->isp_name, fcp->isp_execthrottle);
   1040 		icbp->icb_execthrottle = ICB_DFLT_THROTTLE;
   1041 	}
   1042 	icbp->icb_retry_delay = fcp->isp_retry_delay;
   1043 	icbp->icb_retry_count = fcp->isp_retry_count;
   1044 	icbp->icb_hardaddr = loopid;
   1045 	icbp->icb_logintime = 30;	/* 30 second login timeout */
   1046 
   1047 	if (fcp->isp_nodewwn) {
   1048 		u_int64_t pn;
   1049 		MAKE_NODE_NAME_FROM_WWN(icbp->icb_nodename, fcp->isp_nodewwn);
   1050 		if (fcp->isp_portwwn) {
   1051 			pn = fcp->isp_portwwn;
   1052 		} else {
   1053 			pn = fcp->isp_nodewwn |
   1054 			    (((u_int64_t)(isp->isp_unit+1)) << 56);
   1055 		}
   1056 		/*
   1057 		 * If the top nibble is 2, we can construct a port name
   1058 		 * from the node name by setting a nonzero instance in
   1059 		 * bits 56..59. Otherwise, we need to make it identical
   1060 		 * to Node name...
   1061 		 */
   1062 		if ((fcp->isp_nodewwn >> 60) == 2) {
   1063 			MAKE_NODE_NAME_FROM_WWN(icbp->icb_portname, pn);
   1064 		} else {
   1065 			MAKE_NODE_NAME_FROM_WWN(icbp->icb_portname,
   1066 			    fcp->isp_nodewwn);
   1067 		}
   1068 	} else {
   1069 		fcp->isp_fwoptions &= ~(ICBOPT_USE_PORTNAME|ICBOPT_FULL_LOGIN);
   1070 	}
   1071 	icbp->icb_rqstqlen = RQUEST_QUEUE_LEN;
   1072 	icbp->icb_rsltqlen = RESULT_QUEUE_LEN;
   1073 	icbp->icb_rqstaddr[RQRSP_ADDR0015] = DMA_LSW(isp->isp_rquest_dma);
   1074 	icbp->icb_rqstaddr[RQRSP_ADDR1631] = DMA_MSW(isp->isp_rquest_dma);
   1075 	icbp->icb_respaddr[RQRSP_ADDR0015] = DMA_LSW(isp->isp_result_dma);
   1076 	icbp->icb_respaddr[RQRSP_ADDR1631] = DMA_MSW(isp->isp_result_dma);
   1077 	ISP_SWIZZLE_ICB(isp, icbp);
   1078 
   1079 	/*
   1080 	 * Do this *before* initializing the firmware.
   1081 	 */
   1082 	isp_mark_getpdb_all(isp);
   1083 	fcp->isp_fwstate = FW_CONFIG_WAIT;
   1084 	fcp->isp_loopstate = LOOP_NIL;
   1085 
   1086 	MemoryBarrier();
   1087 	for (;;) {
   1088 		mbs.param[0] = MBOX_INIT_FIRMWARE;
   1089 		mbs.param[1] = 0;
   1090 		mbs.param[2] = DMA_MSW(fcp->isp_scdma);
   1091 		mbs.param[3] = DMA_LSW(fcp->isp_scdma);
   1092 		mbs.param[4] = 0;
   1093 		mbs.param[5] = 0;
   1094 		mbs.param[6] = 0;
   1095 		mbs.param[7] = 0;
   1096 		isp_mboxcmd(isp, &mbs);
   1097 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
   1098 			PRINTF("%s: INIT FIRMWARE failed (code 0x%x)\n",
   1099 			    isp->isp_name, mbs.param[0]);
   1100 			if (mbs.param[0] & 0x8000) {
   1101 				SYS_DELAY(1000);
   1102 				continue;
   1103 			}
   1104 			return;
   1105 		}
   1106 		break;
   1107 	}
   1108 
   1109 	isp->isp_reqidx = isp->isp_reqodx = 0;
   1110 	isp->isp_residx = 0;
   1111 	isp->isp_sendmarker = 1;
   1112 
   1113 	/*
   1114 	 * Whatever happens, we're now committed to being here.
   1115 	 */
   1116 	isp->isp_state = ISP_INITSTATE;
   1117 }
   1118 
   1119 /*
   1120  * Fibre Channel Support- get the port database for the id.
   1121  *
   1122  * Locks are held before coming here. Return 0 if success,
   1123  * else failure.
   1124  */
   1125 
   1126 static void
   1127 isp_mark_getpdb_all(isp)
   1128 	struct ispsoftc *isp;
   1129 {
   1130 	fcparam *fcp = (fcparam *) isp->isp_param;
   1131 	int i;
   1132 	for (i = 0; i < MAX_FC_TARG; i++) {
   1133 		fcp->portdb[i].valid = 0;
   1134 	}
   1135 }
   1136 
   1137 static int
   1138 isp_getpdb(isp, id, pdbp)
   1139 	struct ispsoftc *isp;
   1140 	int id;
   1141 	isp_pdb_t *pdbp;
   1142 {
   1143 	fcparam *fcp = (fcparam *) isp->isp_param;
   1144 	mbreg_t mbs;
   1145 
   1146 	mbs.param[0] = MBOX_GET_PORT_DB;
   1147 	mbs.param[1] = id << 8;
   1148 	mbs.param[2] = DMA_MSW(fcp->isp_scdma);
   1149 	mbs.param[3] = DMA_LSW(fcp->isp_scdma);
   1150 	/*
   1151 	 * Unneeded. For the 2100, except for initializing f/w, registers
   1152 	 * 4/5 have to not be written to.
   1153 	 *	mbs.param[4] = 0;
   1154 	 *	mbs.param[5] = 0;
   1155 	 *
   1156 	 */
   1157 	mbs.param[6] = 0;
   1158 	mbs.param[7] = 0;
   1159 	isp_mboxcmd(isp, &mbs);
   1160 	switch (mbs.param[0]) {
   1161 	case MBOX_COMMAND_COMPLETE:
   1162 		MemoryBarrier();
   1163 		ISP_UNSWIZZLE_AND_COPY_PDBP(isp, pdbp, fcp->isp_scratch);
   1164 		break;
   1165 	case MBOX_HOST_INTERFACE_ERROR:
   1166 		PRINTF("%s: DMA error getting port database\n", isp->isp_name);
   1167 		return (-1);
   1168 	case MBOX_COMMAND_PARAM_ERROR:
   1169 		/* Not Logged In */
   1170 		IDPRINTF(3, ("%s: Param Error on Get Port Database for id %d\n",
   1171 		    isp->isp_name, id));
   1172 		return (-1);
   1173 	default:
   1174 		PRINTF("%s: error 0x%x getting port database for ID %d\n",
   1175 		    isp->isp_name, mbs.param[0], id);
   1176 		return (-1);
   1177 	}
   1178 	return (0);
   1179 }
   1180 
   1181 static u_int64_t
   1182 isp_get_portname(isp, loopid, nodename)
   1183 	struct ispsoftc *isp;
   1184 	int loopid;
   1185 	int nodename;
   1186 {
   1187 	u_int64_t wwn = 0;
   1188 	mbreg_t mbs;
   1189 
   1190 	mbs.param[0] = MBOX_GET_PORT_NAME;
   1191 	mbs.param[1] = loopid << 8;
   1192 	if (nodename)
   1193 		mbs.param[1] |= 1;
   1194 	isp_mboxcmd(isp, &mbs);
   1195 	if (mbs.param[0] == MBOX_COMMAND_COMPLETE) {
   1196 		wwn =
   1197 		    (((u_int64_t)(mbs.param[2] & 0xff)) << 56) |
   1198 		    (((u_int64_t)(mbs.param[2] >> 8))	<< 48) |
   1199 		    (((u_int64_t)(mbs.param[3] & 0xff))	<< 40) |
   1200 		    (((u_int64_t)(mbs.param[3] >> 8))	<< 32) |
   1201 		    (((u_int64_t)(mbs.param[6] & 0xff))	<< 24) |
   1202 		    (((u_int64_t)(mbs.param[6] >> 8))	<< 16) |
   1203 		    (((u_int64_t)(mbs.param[7] & 0xff))	<<  8) |
   1204 		    (((u_int64_t)(mbs.param[7] >> 8)));
   1205 	}
   1206 	return (wwn);
   1207 }
   1208 
   1209 /*
   1210  * Make sure we have good FC link and know our Loop ID.
   1211  */
   1212 
   1213 static int
   1214 isp_fclink_test(isp, waitdelay)
   1215 	struct ispsoftc *isp;
   1216 	int waitdelay;
   1217 {
   1218 	static char *toponames[] = {
   1219 		"Private Loop",
   1220 		"FL Port",
   1221 		"N-Port to N-Port",
   1222 		"F Port"
   1223 	};
   1224 	char *tname;
   1225 	mbreg_t mbs;
   1226 	int count, topo = -1;
   1227 	u_int8_t lwfs;
   1228 	fcparam *fcp;
   1229 #if	defined(ISP2100_FABRIC)
   1230 	isp_pdb_t pdb;
   1231 #endif
   1232 	fcp = isp->isp_param;
   1233 
   1234 	/*
   1235 	 * Wait up to N microseconds for F/W to go to a ready state.
   1236 	 */
   1237 	lwfs = FW_CONFIG_WAIT;
   1238 	for (count = 0; count < waitdelay; count += 100) {
   1239 		isp_fw_state(isp);
   1240 		if (lwfs != fcp->isp_fwstate) {
   1241 			PRINTF("%s: Firmware State %s -> %s\n",
   1242 			    isp->isp_name, isp2100_fw_statename((int)lwfs),
   1243 			    isp2100_fw_statename((int)fcp->isp_fwstate));
   1244 			lwfs = fcp->isp_fwstate;
   1245 		}
   1246 		if (fcp->isp_fwstate == FW_READY) {
   1247 			break;
   1248 		}
   1249 		SYS_DELAY(100);	/* wait 100 microseconds */
   1250 	}
   1251 
   1252 	/*
   1253 	 * If we haven't gone to 'ready' state, return.
   1254 	 */
   1255 	if (fcp->isp_fwstate != FW_READY) {
   1256 		return (-1);
   1257 	}
   1258 
   1259 	/*
   1260 	 * Get our Loop ID (if possible). We really need to have it.
   1261 	 */
   1262 	mbs.param[0] = MBOX_GET_LOOP_ID;
   1263 	isp_mboxcmd(isp, &mbs);
   1264 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
   1265 		PRINTF("%s: GET LOOP ID failed\n", isp->isp_name);
   1266 		return (-1);
   1267 	}
   1268 	fcp->isp_loopid = mbs.param[1];
   1269 	if (isp->isp_type == ISP_HA_FC_2200) {
   1270 		if (ISP_FW_REVX(isp->isp_fwrev) >= ISP_FW_REV(2, 0, 14)) {
   1271 			topo = (int) mbs.param[6];
   1272 		}
   1273 	} else if (isp->isp_type == ISP_HA_FC_2100) {
   1274 		if (ISP_FW_REVX(isp->isp_fwrev) >= ISP_FW_REV(1, 17, 26)) {
   1275 			topo = (int) mbs.param[6];
   1276 		}
   1277 	}
   1278 	if (topo < 0 || topo > 3)
   1279 		tname = "unknown";
   1280 	else
   1281 		tname = toponames[topo];
   1282 
   1283 	/*
   1284 	 * If we're not on a fabric, the low 8 bits will be our AL_PA.
   1285 	 * If we're on a fabric, the low 8 bits will still be our AL_PA.
   1286 	 */
   1287 	fcp->isp_alpa = mbs.param[2];
   1288 #if	defined(ISP2100_FABRIC)
   1289 	fcp->isp_onfabric = 0;
   1290 	if (isp_getpdb(isp, FL_PORT_ID, &pdb) == 0) {
   1291 		fcp->isp_portid = mbs.param[2] | (((int)mbs.param[3]) << 16);
   1292 		fcp->isp_onfabric = 1;
   1293 		CFGPRINTF("%s: Loop ID %d, AL_PA 0x%x, Port ID 0x%x Loop State "
   1294 		    "0x%x topology %s\n", isp->isp_name, fcp->isp_loopid,
   1295 		    fcp->isp_alpa, fcp->isp_portid, fcp->isp_loopstate, tname);
   1296 
   1297 		/*
   1298 		 * Make sure we're logged out of all fabric devices.
   1299 		 */
   1300 		for (count = FC_SNS_ID+1; count < MAX_FC_TARG; count++) {
   1301 			struct lportdb *lp = &fcp->portdb[count];
   1302 			if (lp->valid == 0 || lp->fabdev == 0)
   1303 				continue;
   1304 			PRINTF("%s: logging out target %d at Loop ID %d "
   1305 			    "(port id 0x%x)\n", isp->isp_name, count,
   1306 			    lp->loopid, lp->portid);
   1307 			mbs.param[0] = MBOX_FABRIC_LOGOUT;
   1308 			mbs.param[1] = lp->loopid << 8;
   1309 			mbs.param[2] = 0;
   1310 			mbs.param[3] = 0;
   1311 			isp_mboxcmd(isp, &mbs);
   1312 		}
   1313 	} else
   1314 #endif
   1315 	CFGPRINTF("%s: Loop ID %d, ALPA 0x%x Loop State 0x%x topology %s\n",
   1316 	    isp->isp_name, fcp->isp_loopid, fcp->isp_alpa, fcp->isp_loopstate,
   1317 	    tname);
   1318 	fcp->loop_seen_once = 1;
   1319 	return (0);
   1320 }
   1321 
   1322 /*
   1323  * Compare two local port db entities and return 1 if they're the same, else 0.
   1324  */
   1325 
   1326 static int
   1327 isp_same_lportdb(a, b)
   1328 	struct lportdb *a, *b;
   1329 {
   1330 	/*
   1331 	 * We decide two lports are the same if they have non-zero and
   1332 	 * identical port WWNs and identical loop IDs.
   1333 	 */
   1334 
   1335 	if (a->port_wwn == 0 || a->port_wwn != b->port_wwn ||
   1336 	    a->loopid != b->loopid) {
   1337 		return (0);
   1338 	} else {
   1339 		return (1);
   1340 	}
   1341 }
   1342 
   1343 /*
   1344  * Synchronize our soft copy of the port database with what the f/w thinks
   1345  * (with a view toward possibly for a specific target....)
   1346  */
   1347 
   1348 static int
   1349 isp_pdb_sync(isp, target)
   1350 	struct ispsoftc *isp;
   1351 	int target;
   1352 {
   1353 	struct lportdb *lp, *tport;
   1354 	fcparam *fcp = isp->isp_param;
   1355 	isp_pdb_t pdb;
   1356 	int loopid, lim;
   1357 
   1358 #ifdef	ISP2100_FABRIC
   1359 	/*
   1360 	 * XXX: If we do this *after* building up our local port database,
   1361 	 * XXX: the commands simply don't work.
   1362 	 */
   1363 	/*
   1364 	 * (Re)discover all fabric devices
   1365 	 */
   1366 	if (fcp->isp_onfabric)
   1367 		(void) isp_scan_fabric(isp);
   1368 #endif
   1369 
   1370 
   1371 	/*
   1372 	 * Run through the local loop ports and get port database info
   1373 	 * for each loop ID.
   1374 	 *
   1375 	 * There's a somewhat unexplained situation where the f/w passes back
   1376 	 * the wrong database entity- if that happens, just restart (up to
   1377 	 * FL_PORT_ID times).
   1378 	 */
   1379 	tport = fcp->tport;
   1380 	/*
   1381 	 * make sure the temp port database is clean...
   1382 	 */
   1383 	MEMZERO((void *) tport, sizeof (tport));
   1384 	for (lim = loopid = 0; loopid < FL_PORT_ID; loopid++) {
   1385 		lp = &tport[loopid];
   1386 		lp->node_wwn = isp_get_portname(isp, loopid, 1);
   1387 		if (lp->node_wwn == 0)
   1388 			continue;
   1389 		lp->port_wwn = isp_get_portname(isp, loopid, 0);
   1390 		if (lp->port_wwn == 0) {
   1391 			lp->node_wwn = 0;
   1392 			continue;
   1393 		}
   1394 
   1395 		/*
   1396 		 * Get an entry....
   1397 		 */
   1398 		if (isp_getpdb(isp, loopid, &pdb) != 0) {
   1399 			continue;
   1400 		}
   1401 
   1402 		/*
   1403 		 * If the returned database element doesn't match what we
   1404 		 * asked for, restart the process entirely (up to a point...).
   1405 		 */
   1406 		if (pdb.pdb_loopid != loopid) {
   1407 			IDPRINTF(1, ("%s: wankage (%d != %d)\n",
   1408 			    isp->isp_name, pdb.pdb_loopid, loopid));
   1409 			loopid = 0;
   1410 			if (lim++ < FL_PORT_ID) {
   1411 				continue;
   1412 			}
   1413 			PRINTF("%s: giving up on synchronizing the port "
   1414 			    "database\n", isp->isp_name);
   1415 			return (-1);
   1416 		}
   1417 
   1418 		/*
   1419 		 * Save the pertinent info locally.
   1420 		 */
   1421 		lp->node_wwn =
   1422 		    (((u_int64_t)pdb.pdb_nodename[0]) << 56) |
   1423 		    (((u_int64_t)pdb.pdb_nodename[1]) << 48) |
   1424 		    (((u_int64_t)pdb.pdb_nodename[2]) << 40) |
   1425 		    (((u_int64_t)pdb.pdb_nodename[3]) << 32) |
   1426 		    (((u_int64_t)pdb.pdb_nodename[4]) << 24) |
   1427 		    (((u_int64_t)pdb.pdb_nodename[5]) << 16) |
   1428 		    (((u_int64_t)pdb.pdb_nodename[6]) <<  8) |
   1429 		    (((u_int64_t)pdb.pdb_nodename[7]));
   1430 		lp->port_wwn =
   1431 		    (((u_int64_t)pdb.pdb_portname[0]) << 56) |
   1432 		    (((u_int64_t)pdb.pdb_portname[1]) << 48) |
   1433 		    (((u_int64_t)pdb.pdb_portname[2]) << 40) |
   1434 		    (((u_int64_t)pdb.pdb_portname[3]) << 32) |
   1435 		    (((u_int64_t)pdb.pdb_portname[4]) << 24) |
   1436 		    (((u_int64_t)pdb.pdb_portname[5]) << 16) |
   1437 		    (((u_int64_t)pdb.pdb_portname[6]) <<  8) |
   1438 		    (((u_int64_t)pdb.pdb_portname[7]));
   1439 		lp->roles =
   1440 		    (pdb.pdb_prli_svc3 & SVC3_ROLE_MASK) >> SVC3_ROLE_SHIFT;
   1441 		lp->portid = BITS2WORD(pdb.pdb_portid_bits);
   1442 		lp->loopid = pdb.pdb_loopid;
   1443 		/*
   1444 		 * Do a quick check to see whether this matches the saved port
   1445 		 * database for the same loopid. We do this here to save
   1446 		 * searching later (if possible). Note that this fails over
   1447 		 * time as things shuffle on the loop- we get the current
   1448 		 * loop state (where loop id as an index matches loop id in
   1449 		 * use) and then compare it to our saved database which
   1450 		 * never shifts.
   1451 		 */
   1452 		if (isp_same_lportdb(lp, &fcp->portdb[target])) {
   1453 			lp->valid = 1;
   1454 		}
   1455 	}
   1456 
   1457 	/*
   1458 	 * If we get this far, we've settled our differences with the f/w
   1459 	 * and we can say that the loop state is ready.
   1460 	 */
   1461 	fcp->isp_loopstate = LOOP_READY;
   1462 
   1463 	/*
   1464 	 * Mark all of the permanent local loop database entries as invalid.
   1465 	 */
   1466 	for (loopid = 0; loopid < FL_PORT_ID; loopid++) {
   1467 		fcp->portdb[loopid].valid = 0;
   1468 	}
   1469 
   1470 	/*
   1471 	 * Now merge our local copy of the port database into our saved copy.
   1472 	 * Notify the outer layers of new devices arriving.
   1473 	 */
   1474 	for (loopid = 0; loopid < FL_PORT_ID; loopid++) {
   1475 		int i;
   1476 
   1477 		/*
   1478 		 * If we don't have a non-zero Port WWN, we're not here.
   1479 		 */
   1480 		if (tport[loopid].port_wwn == 0) {
   1481 			continue;
   1482 		}
   1483 
   1484 		/*
   1485 		 * If we've already marked our tmp copy as valid,
   1486 		 * this means that we've decided that it's the
   1487 		 * same as our saved data base. This didn't include
   1488 		 * the 'valid' marking so we have set that here.
   1489 		 */
   1490 		if (tport[loopid].valid) {
   1491 			fcp->portdb[loopid].valid = 1;
   1492 			continue;
   1493 		}
   1494 
   1495 		/*
   1496 		 * For the purposes of deciding whether this is the
   1497 		 * 'same' device or not, we only search for an identical
   1498 		 * Port WWN. Node WWNs may or may not be the same as
   1499 		 * the Port WWN, and there may be multiple different
   1500 		 * Port WWNs with the same Node WWN. It would be chaos
   1501 		 * to have multiple identical Port WWNs, so we don't
   1502 		 * allow that.
   1503 		 */
   1504 
   1505 		for (i = 0; i < FL_PORT_ID; i++) {
   1506 			int j;
   1507 			if (fcp->portdb[i].port_wwn == 0)
   1508 				continue;
   1509 			if (fcp->portdb[i].port_wwn != tport[loopid].port_wwn)
   1510 				continue;
   1511 			/*
   1512 			 * We found this WWN elsewhere- it's changed
   1513 			 * loopids then. We don't change it's actual
   1514 			 * position in our cached port database- we
   1515 			 * just change the actual loop ID we'd use.
   1516 			 */
   1517 			if (fcp->portdb[i].loopid != loopid) {
   1518 				PRINTF("%s: Target ID %d Loop 0x%x (Port 0x%x) "
   1519 				    "=> Loop 0x%x (Port 0x%x) \n",
   1520 				    isp->isp_name, i, fcp->portdb[i].loopid,
   1521 				    fcp->portdb[i].portid, loopid,
   1522 				    tport[loopid].portid);
   1523 			}
   1524 			fcp->portdb[i].portid = tport[loopid].portid;
   1525 			fcp->portdb[i].loopid = loopid;
   1526 			fcp->portdb[i].valid = 1;
   1527 			/*
   1528 			 * XXX: Should we also propagate roles in case they
   1529 			 * XXX: changed?
   1530 			 */
   1531 
   1532 			/*
   1533 			 * Now make sure this Port WWN doesn't exist elsewhere
   1534 			 * in the port database.
   1535 			 */
   1536 			for (j = i+1; j < FL_PORT_ID; j++) {
   1537 				if (fcp->portdb[i].port_wwn !=
   1538 				    fcp->portdb[j].port_wwn) {
   1539 					continue;
   1540 				}
   1541 				PRINTF("%s: Target ID %d Duplicates Target ID "
   1542 				    "%d- killing off both\n",
   1543 				    isp->isp_name, j, i);
   1544 				/*
   1545 				 * Invalidate the 'old' *and* 'new' ones.
   1546 				 * This is really harsh and not quite right,
   1547 				 * but if this happens, we really don't know
   1548 				 * who is what at this point.
   1549 				 */
   1550 				fcp->portdb[i].valid = 0;
   1551 				fcp->portdb[j].valid = 0;
   1552 			}
   1553 			break;
   1554 		}
   1555 
   1556 		/*
   1557 		 * If we didn't traverse the entire port database,
   1558 		 * then we found (and remapped) an existing entry.
   1559 		 * No need to notify anyone- go for the next one.
   1560 		 */
   1561 		if (i < FL_PORT_ID) {
   1562 			continue;
   1563 		}
   1564 
   1565 		/*
   1566 		 * We've not found this Port WWN anywhere. It's a new entry.
   1567 		 * See if we can leave it where it is (with target == loopid).
   1568 		 */
   1569 		if (fcp->portdb[loopid].port_wwn != 0) {
   1570 			for (lim = 0; lim < FL_PORT_ID; lim++) {
   1571 				if (fcp->portdb[lim].port_wwn == 0)
   1572 					break;
   1573 			}
   1574 			/* "Cannot Happen" */
   1575 			if (lim == FL_PORT_ID) {
   1576 				PRINTF("%s: remap overflow?\n", isp->isp_name);
   1577 				continue;
   1578 			}
   1579 			i = lim;
   1580 		} else {
   1581 			i = loopid;
   1582 		}
   1583 
   1584 		/*
   1585 		 * NB:	The actual loopid we use here is loopid- we may
   1586 		 *	in fact be at a completely different index (target).
   1587 		 */
   1588 		fcp->portdb[i].loopid = loopid;
   1589 		fcp->portdb[i].port_wwn = tport[loopid].port_wwn;
   1590 		fcp->portdb[i].node_wwn = tport[loopid].node_wwn;
   1591 		fcp->portdb[i].roles = tport[loopid].roles;
   1592 		fcp->portdb[i].portid = tport[loopid].portid;
   1593 		fcp->portdb[i].valid = 1;
   1594 
   1595 		/*
   1596 		 * Tell the outside world we've arrived.
   1597 		 */
   1598 		(void) isp_async(isp, ISPASYNC_PDB_CHANGED, &i);
   1599 	}
   1600 
   1601 	/*
   1602 	 * Now find all previously used targets that are now invalid and
   1603 	 * notify the outer layers that they're gone.
   1604 	 */
   1605 	for (lp = fcp->portdb; lp < &fcp->portdb[FL_PORT_ID]; lp++) {
   1606 		if (lp->valid || lp->port_wwn == 0)
   1607 			continue;
   1608 
   1609 		/*
   1610 		 * Tell the outside world we've gone away.
   1611 		 */
   1612 		loopid = lp - fcp->portdb;
   1613 		(void) isp_async(isp, ISPASYNC_PDB_CHANGED, &loopid);
   1614 		MEMZERO((void *) lp, sizeof (*lp));
   1615 	}
   1616 
   1617 #ifdef	ISP2100_FABRIC
   1618 	/*
   1619 	 * Now log in any fabric devices
   1620 	 */
   1621 	for (lp = &fcp->portdb[FC_SNS_ID+1];
   1622 	     lp < &fcp->portdb[MAX_FC_TARG]; lp++) {
   1623 		mbreg_t mbs;
   1624 
   1625 		/*
   1626 		 * Nothing here?
   1627 		 */
   1628 		if (lp->port_wwn == 0)
   1629 			continue;
   1630 		/*
   1631 		 * Don't try to log into yourself.
   1632 		 */
   1633 		if (lp->portid == fcp->isp_portid)
   1634 			continue;
   1635 
   1636 		/*
   1637 		 * Force a logout.
   1638 		 */
   1639 		lp->loopid = loopid = lp - fcp->portdb;
   1640 		mbs.param[0] = MBOX_FABRIC_LOGOUT;
   1641 		mbs.param[1] = lp->loopid << 8;
   1642 		mbs.param[2] = 0;
   1643 		mbs.param[3] = 0;
   1644 		isp_mboxcmd(isp, &mbs);
   1645 
   1646 		/*
   1647 		 * And log in....
   1648 		 */
   1649 		mbs.param[0] = MBOX_FABRIC_LOGIN;
   1650 		mbs.param[1] = lp->loopid << 8;
   1651 		mbs.param[2] = lp->portid >> 16;
   1652 		mbs.param[3] = lp->portid & 0xffff;
   1653 		isp_mboxcmd(isp, &mbs);
   1654 		switch (mbs.param[0]) {
   1655 		case  MBOX_COMMAND_COMPLETE:
   1656 			break;
   1657 		case MBOX_COMMAND_ERROR:
   1658 			switch (mbs.param[1]) {
   1659 			case	1:
   1660 				PRINTF("%s: no loop\n", isp->isp_name);
   1661 				break;
   1662 			case	2:
   1663 				PRINTF("%s: IOCB buffer could not be alloced\n",
   1664 				    isp->isp_name);
   1665 				break;
   1666 			case	3:
   1667 				PRINTF("%s: could not alloc xchange resource\n",
   1668 				    isp->isp_name);
   1669 				break;
   1670 			case	4:
   1671 				PRINTF("%s: ELS timeout\n", isp->isp_name);
   1672 				break;
   1673 			case	5:
   1674 				PRINTF("%s: no fabric port\n", isp->isp_name);
   1675 				break;
   1676 			case	6:
   1677 				PRINTF("%s: remote device cannot be a target\n",
   1678 				    isp->isp_name);
   1679 				break;
   1680 			default:
   1681 				break;
   1682 			}
   1683 			continue;
   1684 		default:
   1685 			continue;
   1686 		}
   1687 
   1688 		lp->valid = 1;
   1689 		lp->fabdev = 1;
   1690 		if (isp_getpdb(isp, loopid, &pdb) != 0) {
   1691 			/*
   1692 			 * Be kind...
   1693 			 */
   1694 			lp->roles = (SVC3_TGT_ROLE >> SVC3_ROLE_SHIFT);
   1695 			PRINTF("%s: Faked PortID 0x%x into LoopID %d\n",
   1696 			    isp->isp_name, lp->portid, lp->loopid);
   1697 			continue;
   1698 		}
   1699 		if (pdb.pdb_loopid != lp->loopid) {
   1700 			lp->roles = (SVC3_TGT_ROLE >> SVC3_ROLE_SHIFT);
   1701 			PRINTF("%s: Wanked PortID 0x%x to LoopID %d\n",
   1702 			    isp->isp_name, lp->portid, lp->loopid);
   1703 			continue;
   1704 		}
   1705 		lp->roles =
   1706 		    (pdb.pdb_prli_svc3 & SVC3_ROLE_MASK) >> SVC3_ROLE_SHIFT;
   1707 		lp->portid = BITS2WORD(pdb.pdb_portid_bits);
   1708 		lp->loopid = loopid;
   1709 		lp->node_wwn =
   1710 		    (((u_int64_t)pdb.pdb_nodename[0]) << 56) |
   1711 		    (((u_int64_t)pdb.pdb_nodename[1]) << 48) |
   1712 		    (((u_int64_t)pdb.pdb_nodename[2]) << 40) |
   1713 		    (((u_int64_t)pdb.pdb_nodename[3]) << 32) |
   1714 		    (((u_int64_t)pdb.pdb_nodename[4]) << 24) |
   1715 		    (((u_int64_t)pdb.pdb_nodename[5]) << 16) |
   1716 		    (((u_int64_t)pdb.pdb_nodename[6]) <<  8) |
   1717 		    (((u_int64_t)pdb.pdb_nodename[7]));
   1718 		lp->port_wwn =
   1719 		    (((u_int64_t)pdb.pdb_portname[0]) << 56) |
   1720 		    (((u_int64_t)pdb.pdb_portname[1]) << 48) |
   1721 		    (((u_int64_t)pdb.pdb_portname[2]) << 40) |
   1722 		    (((u_int64_t)pdb.pdb_portname[3]) << 32) |
   1723 		    (((u_int64_t)pdb.pdb_portname[4]) << 24) |
   1724 		    (((u_int64_t)pdb.pdb_portname[5]) << 16) |
   1725 		    (((u_int64_t)pdb.pdb_portname[6]) <<  8) |
   1726 		    (((u_int64_t)pdb.pdb_portname[7]));
   1727 		/*
   1728 		 * Check to make sure this all makes sense.
   1729 		 */
   1730 		if (lp->node_wwn && lp->port_wwn) {
   1731 			(void) isp_async(isp, ISPASYNC_PDB_CHANGED, &loopid);
   1732 			continue;
   1733 		}
   1734 		lp->fabdev = lp->valid = 0;
   1735 		PRINTF("%s: Target %d (Loop 0x%x) Port ID 0x%x lost its WWN\n",
   1736 		    isp->isp_name, loopid, lp->loopid, lp->portid);
   1737 		mbs.param[0] = MBOX_FABRIC_LOGOUT;
   1738 		mbs.param[1] = lp->loopid << 8;
   1739 		mbs.param[2] = 0;
   1740 		mbs.param[3] = 0;
   1741 		isp_mboxcmd(isp, &mbs);
   1742 	}
   1743 #endif
   1744 	return (0);
   1745 }
   1746 
   1747 #ifdef	ISP2100_FABRIC
   1748 static int
   1749 isp_scan_fabric(isp)
   1750 	struct ispsoftc *isp;
   1751 {
   1752 	fcparam *fcp = isp->isp_param;
   1753 	u_int32_t portid, first_nz_portid;
   1754 	sns_screq_t *reqp;
   1755 	sns_scrsp_t *resp;
   1756 	mbreg_t mbs;
   1757 	int hicap;
   1758 
   1759 	reqp = (sns_screq_t *) fcp->isp_scratch;
   1760 	resp = (sns_scrsp_t *) (&((char *)fcp->isp_scratch)[0x100]);
   1761 	first_nz_portid = portid = fcp->isp_portid;
   1762 
   1763 	for (hicap = 0; hicap < 1024; hicap++) {
   1764 		MEMZERO((void *) reqp, SNS_GAN_REQ_SIZE);
   1765 		reqp->snscb_rblen = SNS_GAN_RESP_SIZE >> 1;
   1766 		reqp->snscb_addr[RQRSP_ADDR0015] =
   1767 			DMA_LSW(fcp->isp_scdma + 0x100);
   1768 		reqp->snscb_addr[RQRSP_ADDR1631] =
   1769 			DMA_MSW(fcp->isp_scdma + 0x100);
   1770 		reqp->snscb_sblen = 6;
   1771 		reqp->snscb_data[0] = SNS_GAN;
   1772 		reqp->snscb_data[4] = portid & 0xffff;
   1773 		reqp->snscb_data[5] = (portid >> 16) & 0xff;
   1774 		ISP_SWIZZLE_SNS_REQ(isp, reqp);
   1775 		mbs.param[0] = MBOX_SEND_SNS;
   1776 		mbs.param[1] = SNS_GAN_REQ_SIZE >> 1;
   1777 		mbs.param[2] = DMA_MSW(fcp->isp_scdma);
   1778 		mbs.param[3] = DMA_LSW(fcp->isp_scdma);
   1779 		mbs.param[6] = 0;
   1780 		mbs.param[7] = 0;
   1781 		MemoryBarrier();
   1782 		isp_mboxcmd(isp, &mbs);
   1783 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
   1784 			return (-1);
   1785 		}
   1786 		ISP_UNSWIZZLE_SNS_RSP(isp, resp, SNS_GAN_RESP_SIZE >> 1);
   1787 		portid = (((u_int32_t) resp->snscb_port_id[0]) << 16) |
   1788 		    (((u_int32_t) resp->snscb_port_id[1]) << 8) |
   1789 		    (((u_int32_t) resp->snscb_port_id[2]));
   1790 		if (isp_async(isp, ISPASYNC_FABRIC_DEV, resp)) {
   1791 			return (-1);
   1792 		}
   1793 		if (first_nz_portid == 0 && portid) {
   1794 			first_nz_portid = portid;
   1795 		}
   1796 		if (first_nz_portid == portid) {
   1797 			return (0);
   1798 		}
   1799 	}
   1800 	/*
   1801 	 * We either have a broken name server or a huge fabric if we get here.
   1802 	 */
   1803 	return (0);
   1804 }
   1805 #endif
   1806 /*
   1807  * Start a command. Locking is assumed done in the caller.
   1808  */
   1809 
   1810 int32_t
   1811 ispscsicmd(xs)
   1812 	ISP_SCSI_XFER_T *xs;
   1813 {
   1814 	struct ispsoftc *isp;
   1815 	u_int16_t iptr, optr;
   1816 	union {
   1817 		ispreq_t *_reqp;
   1818 		ispreqt2_t *_t2reqp;
   1819 	} _u;
   1820 #define	reqp	_u._reqp
   1821 #define	t2reqp	_u._t2reqp
   1822 #define	UZSIZE	max(sizeof (ispreq_t), sizeof (ispreqt2_t))
   1823 	int target, i;
   1824 
   1825 	XS_INITERR(xs);
   1826 	isp = XS_ISP(xs);
   1827 
   1828 	if (isp->isp_state != ISP_RUNSTATE) {
   1829 		PRINTF("%s: adapter not ready\n", isp->isp_name);
   1830 		XS_SETERR(xs, HBA_BOTCH);
   1831 		return (CMD_COMPLETE);
   1832 	}
   1833 
   1834 	/*
   1835 	 * We *could* do the different sequence type that has close
   1836 	 * to the whole Queue Entry for the command...
   1837 	 */
   1838 
   1839 	if (XS_CDBLEN(xs) > (IS_FC(isp) ? 16 : 12) || XS_CDBLEN(xs) == 0) {
   1840 		PRINTF("%s: unsupported cdb length (%d, CDB[0]=0x%x)\n",
   1841 		    isp->isp_name, XS_CDBLEN(xs), XS_CDBP(xs)[0]);
   1842 		XS_SETERR(xs, HBA_BOTCH);
   1843 		return (CMD_COMPLETE);
   1844 	}
   1845 
   1846 	/*
   1847 	 * Check to see whether we have good firmware state still or
   1848 	 * need to refresh our port database for this target.
   1849 	 */
   1850 	target = XS_TGT(xs);
   1851 	if (IS_FC(isp)) {
   1852 		fcparam *fcp = isp->isp_param;
   1853 		struct lportdb *lp;
   1854 #if	defined(ISP2100_FABRIC)
   1855 		if (target >= FL_PORT_ID) {
   1856 			/*
   1857 			 * If we're not on a Fabric, we can't have a target
   1858 			 * above FL_PORT_ID-1. If we're on a fabric, we
   1859 			 * can't have a target less than FC_SNS_ID+1.
   1860 			 */
   1861 			if (fcp->isp_onfabric == 0 || target <= FC_SNS_ID) {
   1862 				XS_SETERR(xs, HBA_SELTIMEOUT);
   1863 				return (CMD_COMPLETE);
   1864 			}
   1865 		}
   1866 #endif
   1867 		/*
   1868 		 * Check for f/w being in ready state. If the f/w
   1869 		 * isn't in ready state, then we don't know our
   1870 		 * loop ID and the f/w hasn't completed logging
   1871 		 * into all targets on the loop. If this is the
   1872 		 * case, then bounce the command. We pretend this is
   1873 		 * a SELECTION TIMEOUT error if we've never gone to
   1874 		 * FW_READY state at all- in this case we may not
   1875 		 * be hooked to a loop at all and we shouldn't hang
   1876 		 * the machine for this. Otherwise, defer this command
   1877 		 * until later.
   1878 		 */
   1879 		if (fcp->isp_fwstate != FW_READY) {
   1880 			if (isp_fclink_test(isp, FC_FW_READY_DELAY)) {
   1881 				XS_SETERR(xs, HBA_SELTIMEOUT);
   1882 				if (fcp->loop_seen_once) {
   1883 					return (CMD_RQLATER);
   1884 				} else {
   1885 					return (CMD_COMPLETE);
   1886 				}
   1887 			}
   1888 		}
   1889 
   1890 		/*
   1891 		 * If our loop state is such that we haven't yet received
   1892 		 * a "Port Database Changed" notification (after a LIP or
   1893 		 * a Loop Reset or firmware initialization), then defer
   1894 		 * sending commands for a little while.
   1895 		 */
   1896 		if (fcp->isp_loopstate < LOOP_PDB_RCVD) {
   1897 			XS_SETERR(xs, HBA_SELTIMEOUT);
   1898 			return (CMD_RQLATER);
   1899 		}
   1900 
   1901 		/*
   1902 		 * If our loop state is now such that we've just now
   1903 		 * received a Port Database Change notification, then
   1904 		 * we have to go off and (re)synchronize our port
   1905 		 * database.
   1906 		 */
   1907 		if (fcp->isp_loopstate == LOOP_PDB_RCVD) {
   1908 			if (isp_pdb_sync(isp, target)) {
   1909 				XS_SETERR(xs, HBA_SELTIMEOUT);
   1910 				return (CMD_COMPLETE);
   1911 			}
   1912 		}
   1913 
   1914 		/*
   1915 		 * Now check whether we should even think about pursuing this.
   1916 		 */
   1917 		lp = &fcp->portdb[target];
   1918 		if (lp->valid == 0) {
   1919 			XS_SETERR(xs, HBA_SELTIMEOUT);
   1920 			return (CMD_COMPLETE);
   1921 		}
   1922 		if ((lp->roles & (SVC3_TGT_ROLE >> SVC3_ROLE_SHIFT)) == 0) {
   1923 			IDPRINTF(3, ("%s: target %d is not a target\n",
   1924 			    isp->isp_name, target));
   1925 			XS_SETERR(xs, HBA_SELTIMEOUT);
   1926 			return (CMD_COMPLETE);
   1927 		}
   1928 		/*
   1929 		 * Now turn target into what the actual loop ID is.
   1930 		 */
   1931 		target = lp->loopid;
   1932 	}
   1933 
   1934 	/*
   1935 	 * Next check to see if any HBA or Device
   1936 	 * parameters need to be updated.
   1937 	 */
   1938 	if (isp->isp_update != 0) {
   1939 		isp_update(isp);
   1940 	}
   1941 
   1942 	if (isp_getrqentry(isp, &iptr, &optr, (void **) &reqp)) {
   1943 		IDPRINTF(1, ("%s: Request Queue Overflow\n", isp->isp_name));
   1944 		XS_SETERR(xs, HBA_BOTCH);
   1945 		return (CMD_EAGAIN);
   1946 	}
   1947 
   1948 	/*
   1949 	 * Now see if we need to synchronize the ISP with respect to anything.
   1950 	 * We do dual duty here (cough) for synchronizing for busses other
   1951 	 * than which we got here to send a command to.
   1952 	 */
   1953 	if (isp->isp_sendmarker) {
   1954 		u_int8_t n = (IS_DUALBUS(isp)? 2: 1);
   1955 		/*
   1956 		 * Check ports to send markers for...
   1957 		 */
   1958 		for (i = 0; i < n; i++) {
   1959 			if ((isp->isp_sendmarker & (1 << i)) == 0) {
   1960 				continue;
   1961 			}
   1962 			MEMZERO((void *) reqp, sizeof (*reqp));
   1963 			reqp->req_header.rqs_entry_count = 1;
   1964 			reqp->req_header.rqs_entry_type = RQSTYPE_MARKER;
   1965 			reqp->req_modifier = SYNC_ALL;
   1966 			reqp->req_target = i << 7;	/* insert bus number */
   1967 			ISP_SWIZZLE_REQUEST(isp, reqp);
   1968 			MemoryBarrier();
   1969 			ISP_ADD_REQUEST(isp, iptr);
   1970 
   1971 			if (isp_getrqentry(isp, &iptr, &optr, (void **)&reqp)) {
   1972 				IDPRINTF(1, ("%s: Request Queue Overflow+\n",
   1973 				    isp->isp_name));
   1974 				XS_SETERR(xs, HBA_BOTCH);
   1975 				return (CMD_EAGAIN);
   1976 			}
   1977 		}
   1978 	}
   1979 
   1980 	MEMZERO((void *) reqp, UZSIZE);
   1981 	reqp->req_header.rqs_entry_count = 1;
   1982 	if (IS_FC(isp)) {
   1983 		reqp->req_header.rqs_entry_type = RQSTYPE_T2RQS;
   1984 	} else {
   1985 		reqp->req_header.rqs_entry_type = RQSTYPE_REQUEST;
   1986 	}
   1987 	reqp->req_header.rqs_flags = 0;
   1988 	reqp->req_header.rqs_seqno = 0;
   1989 	if (IS_FC(isp)) {
   1990 		/*
   1991 		 * See comment in isp_intr
   1992 		 */
   1993 		XS_RESID(xs) = 0;
   1994 
   1995 		/*
   1996 		 * Fibre Channel always requires some kind of tag.
   1997 		 * The Qlogic drivers seem be happy not to use a tag,
   1998 		 * but this breaks for some devices (IBM drives).
   1999 		 */
   2000 		if (XS_CANTAG(xs)) {
   2001 			t2reqp->req_flags = XS_KINDOF_TAG(xs);
   2002 		} else {
   2003 			if (XS_CDBP(xs)[0] == 0x3)	/* REQUEST SENSE */
   2004 				t2reqp->req_flags = REQFLAG_HTAG;
   2005 			else
   2006 				t2reqp->req_flags = REQFLAG_OTAG;
   2007 		}
   2008 	} else {
   2009 		sdparam *sdp = (sdparam *)isp->isp_param;
   2010 		if ((sdp->isp_devparam[target].cur_dflags & DPARM_TQING) &&
   2011 		    XS_CANTAG(xs)) {
   2012 			reqp->req_flags = XS_KINDOF_TAG(xs);
   2013 		}
   2014 	}
   2015 	reqp->req_target = target | (XS_CHANNEL(xs) << 7);
   2016 	if (IS_SCSI(isp)) {
   2017 		reqp->req_lun_trn = XS_LUN(xs);
   2018 		reqp->req_cdblen = XS_CDBLEN(xs);
   2019 	} else {
   2020 #ifdef	ISP2100_SCCLUN
   2021 		t2reqp->req_scclun = XS_LUN(xs);
   2022 #else
   2023 		t2reqp->req_lun_trn = XS_LUN(xs);
   2024 #endif
   2025 	}
   2026 	MEMCPY(reqp->req_cdb, XS_CDBP(xs), XS_CDBLEN(xs));
   2027 
   2028 	reqp->req_time = XS_TIME(xs) / 1000;
   2029 	if (reqp->req_time == 0 && XS_TIME(xs))
   2030 		reqp->req_time = 1;
   2031 
   2032 	/*
   2033 	 * Always give a bit more leeway to commands after a bus reset.
   2034 	 * XXX: DOES NOT DISTINGUISH WHICH PORT MAY HAVE BEEN SYNCED
   2035 	 */
   2036 	if (isp->isp_sendmarker && reqp->req_time < 5) {
   2037 		reqp->req_time = 5;
   2038 	}
   2039 	if (isp_save_xs(isp, xs, &reqp->req_handle)) {
   2040 		IDPRINTF(2, ("%s: out of xflist pointers\n", isp->isp_name));
   2041 		XS_SETERR(xs, HBA_BOTCH);
   2042 		return (CMD_EAGAIN);
   2043 	}
   2044 	/*
   2045 	 * Set up DMA and/or do any bus swizzling of the request entry
   2046 	 * so that the Qlogic F/W understands what is being asked of it.
   2047  	*/
   2048 	i = ISP_DMASETUP(isp, xs, reqp, &iptr, optr);
   2049 	if (i != CMD_QUEUED) {
   2050 		isp_destroy_handle(isp, reqp->req_handle);
   2051 		/*
   2052 		 * dmasetup sets actual error in packet, and
   2053 		 * return what we were given to return.
   2054 		 */
   2055 		return (i);
   2056 	}
   2057 	XS_SETERR(xs, HBA_NOERROR);
   2058 	IDPRINTF(5, ("%s(%d.%d.%d): START cmd 0x%x datalen %d\n",
   2059 	    isp->isp_name, XS_CHANNEL(xs), target, XS_LUN(xs),
   2060 	    reqp->req_cdb[0], XS_XFRLEN(xs)));
   2061 	MemoryBarrier();
   2062 	ISP_ADD_REQUEST(isp, iptr);
   2063 	isp->isp_nactive++;
   2064 	if (isp->isp_sendmarker)
   2065 		isp->isp_sendmarker = 0;
   2066 	return (CMD_QUEUED);
   2067 #undef	reqp
   2068 #undef	t2reqp
   2069 }
   2070 
   2071 /*
   2072  * isp control
   2073  * Locks (ints blocked) assumed held.
   2074  */
   2075 
   2076 int
   2077 isp_control(isp, ctl, arg)
   2078 	struct ispsoftc *isp;
   2079 	ispctl_t ctl;
   2080 	void *arg;
   2081 {
   2082 	ISP_SCSI_XFER_T *xs;
   2083 	mbreg_t mbs;
   2084 	int bus, tgt;
   2085 	u_int32_t handle;
   2086 
   2087 	switch (ctl) {
   2088 	default:
   2089 		PRINTF("%s: isp_control unknown control op %x\n",
   2090 		    isp->isp_name, ctl);
   2091 		break;
   2092 
   2093 	case ISPCTL_RESET_BUS:
   2094 		/*
   2095 		 * Issue a bus reset.
   2096 		 */
   2097 		mbs.param[0] = MBOX_BUS_RESET;
   2098 		if (IS_SCSI(isp)) {
   2099 			mbs.param[1] =
   2100 			    ((sdparam *) isp->isp_param)->isp_bus_reset_delay;
   2101 			if (mbs.param[1] < 2)
   2102 				mbs.param[1] = 2;
   2103 			bus = *((int *) arg);
   2104 			mbs.param[2] = bus;
   2105 		} else {
   2106 			mbs.param[1] = 10;
   2107 			mbs.param[2] = 0;
   2108 			bus = 0;
   2109 		}
   2110 		isp->isp_sendmarker = 1 << bus;
   2111 		isp_mboxcmd(isp, &mbs);
   2112 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
   2113 			isp_dumpregs(isp, "isp_control SCSI bus reset failed");
   2114 			break;
   2115 		}
   2116 		CFGPRINTF("%s: driver initiated bus reset of bus %d\n",
   2117 		    isp->isp_name, bus);
   2118 		return (0);
   2119 
   2120 	case ISPCTL_RESET_DEV:
   2121 		tgt = (*((int *) arg)) & 0xffff;
   2122 		bus = (*((int *) arg)) >> 16;
   2123 		mbs.param[0] = MBOX_ABORT_TARGET;
   2124 		mbs.param[1] = (tgt << 8) | (bus << 15);
   2125 		mbs.param[2] = 3;	/* 'delay', in seconds */
   2126 		isp_mboxcmd(isp, &mbs);
   2127 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
   2128 			PRINTF("%s: isp_control MBOX_RESET_DEV failure (code "
   2129 			    "%x)\n", isp->isp_name, mbs.param[0]);
   2130 			break;
   2131 		}
   2132 		PRINTF("%s: Target %d on Bus %d Reset Succeeded\n",
   2133 		    isp->isp_name, tgt, bus);
   2134 		isp->isp_sendmarker = 1 << bus;
   2135 		return (0);
   2136 
   2137 	case ISPCTL_ABORT_CMD:
   2138 		xs = (ISP_SCSI_XFER_T *) arg;
   2139 		handle = isp_find_handle(isp, xs);
   2140 		if (handle == 0) {
   2141 			PRINTF("%s: isp_control- cannot find command to abort "
   2142 			    "in active list\n", isp->isp_name);
   2143 			break;
   2144 		}
   2145 		bus = XS_CHANNEL(xs);
   2146 		mbs.param[0] = MBOX_ABORT;
   2147 		if (IS_FC(isp)) {
   2148 #ifdef	ISP2100_SCCLUN
   2149 			mbs.param[1] = XS_TGT(xs) << 8;
   2150 			mbs.param[4] = 0;
   2151 			mbs.param[5] = 0;
   2152 			mbs.param[6] = XS_LUN(xs);
   2153 #else
   2154 			mbs.param[1] = XS_TGT(xs) << 8 | XS_LUN(xs);
   2155 #endif
   2156 		} else {
   2157 			mbs.param[1] =
   2158 			    (bus << 15) | (XS_TGT(xs) << 8) | XS_LUN(xs);
   2159 		}
   2160 		mbs.param[2] = handle >> 16;
   2161 		mbs.param[3] = handle & 0xffff;
   2162 		isp_mboxcmd(isp, &mbs);
   2163 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
   2164 			PRINTF("%s: isp_control MBOX_ABORT failure (code %x)\n",
   2165 			    isp->isp_name, mbs.param[0]);
   2166 			break;
   2167 		}
   2168 		PRINTF("%s: command for target %d lun %d was aborted\n",
   2169 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2170 		return (0);
   2171 
   2172 	case ISPCTL_UPDATE_PARAMS:
   2173 		isp_update(isp);
   2174 		return (0);
   2175 
   2176 	case ISPCTL_FCLINK_TEST:
   2177 		return (isp_fclink_test(isp, FC_FW_READY_DELAY));
   2178 #ifdef	ISP_TARGET_MODE
   2179 	case ISPCTL_ENABLE_LUN:
   2180 		return (isp_modify_lun, 1, arg));
   2181 
   2182 	case ISPCTL_MODIFY_LUN:
   2183 		return (isp_modify_lun, 0, arg));
   2184 #endif
   2185 	}
   2186 	return (-1);
   2187 }
   2188 
   2189 /*
   2190  * Interrupt Service Routine(s).
   2191  *
   2192  * External (OS) framework has done the appropriate locking,
   2193  * and the locking will be held throughout this function.
   2194  */
   2195 
   2196 int
   2197 isp_intr(arg)
   2198 	void *arg;
   2199 {
   2200 	ISP_SCSI_XFER_T *complist[RESULT_QUEUE_LEN], *xs;
   2201 	struct ispsoftc *isp = arg;
   2202 	u_int16_t iptr, optr;
   2203 	u_int16_t isr, isrb, sema;
   2204 	int i, nlooked = 0, ndone = 0;
   2205 
   2206 	/*
   2207 	 * Well, if we've disabled interrupts, we may get a case where
   2208 	 * isr isn't set, but sema is. In any case, debounce isr reads.
   2209 	 */
   2210 	do {
   2211 		isr = ISP_READ(isp, BIU_ISR);
   2212 		isrb = ISP_READ(isp, BIU_ISR);
   2213 	} while (isr != isrb);
   2214 	sema = ISP_READ(isp, BIU_SEMA) & 0x1;
   2215 	IDPRINTF(5, ("%s: isp_intr isr %x sem %x\n", isp->isp_name, isr, sema));
   2216 	if (isr == 0) {
   2217 		return (0);
   2218 	}
   2219 	if (!INT_PENDING(isp, isr)) {
   2220 		IDPRINTF(4, ("%s: isp_intr isr=%x\n", isp->isp_name, isr));
   2221 		return (0);
   2222 	}
   2223 	if (isp->isp_state != ISP_RUNSTATE) {
   2224 		IDPRINTF(3, ("%s: interrupt (isr=%x,sema=%x) when not ready\n",
   2225 		    isp->isp_name, isr, sema));
   2226 		ISP_WRITE(isp, INMAILBOX5, ISP_READ(isp, OUTMAILBOX5));
   2227 		ISP_WRITE(isp, HCCR, HCCR_CMD_CLEAR_RISC_INT);
   2228 		ISP_WRITE(isp, BIU_SEMA, 0);
   2229 		ENABLE_INTS(isp);
   2230 		return (1);
   2231 	}
   2232 
   2233 	if (sema) {
   2234 		u_int16_t mbox = ISP_READ(isp, OUTMAILBOX0);
   2235 		if (mbox & 0x4000) {
   2236 			IDPRINTF(3, ("%s: Command Mbox 0x%x\n",
   2237 			    isp->isp_name, mbox));
   2238 		} else {
   2239 			u_int32_t fhandle = isp_parse_async(isp, (int) mbox);
   2240 			IDPRINTF(3, ("%s: Async Mbox 0x%x\n",
   2241 			    isp->isp_name, mbox));
   2242 			if (fhandle > 0) {
   2243 				isp_fastpost_complete(isp, fhandle);
   2244 			}
   2245 		}
   2246 		ISP_WRITE(isp, BIU_SEMA, 0);
   2247 		ISP_WRITE(isp, HCCR, HCCR_CMD_CLEAR_RISC_INT);
   2248 		ENABLE_INTS(isp);
   2249 		return (1);
   2250 	}
   2251 
   2252 	/*
   2253 	 * You *must* read OUTMAILBOX5 prior to clearing the RISC interrupt.
   2254 	 */
   2255 	optr = isp->isp_residx;
   2256 	iptr = ISP_READ(isp, OUTMAILBOX5);
   2257 	ISP_WRITE(isp, HCCR, HCCR_CMD_CLEAR_RISC_INT);
   2258 	if (optr == iptr) {
   2259 		IDPRINTF(4, ("why intr? isr %x iptr %x optr %x\n",
   2260 		    isr, optr, iptr));
   2261 	}
   2262 
   2263 	while (optr != iptr) {
   2264 		ispstatusreq_t *sp;
   2265 		u_int16_t oop;
   2266 		int buddaboom = 0;
   2267 
   2268 		sp = (ispstatusreq_t *) ISP_QUEUE_ENTRY(isp->isp_result, optr);
   2269 		oop = optr;
   2270 		optr = ISP_NXT_QENTRY(optr, RESULT_QUEUE_LEN);
   2271 		nlooked++;
   2272 		MemoryBarrier();
   2273 		/*
   2274 		 * Do any appropriate unswizzling of what the Qlogic f/w has
   2275 		 * written into memory so it makes sense to us.
   2276 		 */
   2277 		ISP_UNSWIZZLE_RESPONSE(isp, sp);
   2278 		if (sp->req_header.rqs_entry_type != RQSTYPE_RESPONSE) {
   2279 			if (isp_handle_other_response(isp, sp, &optr) == 0) {
   2280 				ISP_WRITE(isp, INMAILBOX5, optr);
   2281 				continue;
   2282 			}
   2283 			/*
   2284 			 * It really has to be a bounced request just copied
   2285 			 * from the request queue to the response queue. If
   2286 			 * not, something bad has happened.
   2287 			 */
   2288 			if (sp->req_header.rqs_entry_type != RQSTYPE_REQUEST) {
   2289 				ISP_WRITE(isp, INMAILBOX5, optr);
   2290 				PRINTF("%s: not RESPONSE in RESPONSE Queue "
   2291 				    "(type 0x%x) @ idx %d (next %d)\n",
   2292 				    isp->isp_name,
   2293 				    sp->req_header.rqs_entry_type, oop, optr);
   2294 				continue;
   2295 			}
   2296 			buddaboom = 1;
   2297 		}
   2298 
   2299 		if (sp->req_header.rqs_flags & 0xf) {
   2300 #define	_RQS_OFLAGS	\
   2301 	~(RQSFLAG_CONTINUATION|RQSFLAG_FULL|RQSFLAG_BADHEADER|RQSFLAG_BADPACKET)
   2302 			if (sp->req_header.rqs_flags & RQSFLAG_CONTINUATION) {
   2303 				IDPRINTF(3, ("%s: continuation segment\n",
   2304 				    isp->isp_name));
   2305 				ISP_WRITE(isp, INMAILBOX5, optr);
   2306 				continue;
   2307 			}
   2308 			if (sp->req_header.rqs_flags & RQSFLAG_FULL) {
   2309 				IDPRINTF(2, ("%s: internal queues full\n",
   2310 				    isp->isp_name));
   2311 				/*
   2312 				 * We'll synthesize a QUEUE FULL message below.
   2313 				 */
   2314 			}
   2315 			if (sp->req_header.rqs_flags & RQSFLAG_BADHEADER) {
   2316 				PRINTF("%s: bad header\n", isp->isp_name);
   2317 				buddaboom++;
   2318 			}
   2319 			if (sp->req_header.rqs_flags & RQSFLAG_BADPACKET) {
   2320 				PRINTF("%s: bad request packet\n",
   2321 				    isp->isp_name);
   2322 				buddaboom++;
   2323 			}
   2324 			if (sp->req_header.rqs_flags & _RQS_OFLAGS) {
   2325 				PRINTF("%s: unknown flags in response (0x%x)\n",
   2326 				    isp->isp_name, sp->req_header.rqs_flags);
   2327 				buddaboom++;
   2328 			}
   2329 #undef	_RQS_OFLAGS
   2330 		}
   2331 		if (sp->req_handle > isp->isp_maxcmds || sp->req_handle < 1) {
   2332 			PRINTF("%s: bad request handle %d\n", isp->isp_name,
   2333 			    sp->req_handle);
   2334 			ISP_WRITE(isp, INMAILBOX5, optr);
   2335 			continue;
   2336 		}
   2337 		xs = isp_find_xs(isp, sp->req_handle);
   2338 		if (xs == NULL) {
   2339 			PRINTF("%s: NULL xs in xflist (handle 0x%x)\n",
   2340 			    isp->isp_name, sp->req_handle);
   2341 			ISP_WRITE(isp, INMAILBOX5, optr);
   2342 			continue;
   2343 		}
   2344 		isp_destroy_handle(isp, sp->req_handle);
   2345 		if (sp->req_status_flags & RQSTF_BUS_RESET) {
   2346 			isp->isp_sendmarker |= (1 << XS_CHANNEL(xs));
   2347 		}
   2348 		if (buddaboom) {
   2349 			XS_SETERR(xs, HBA_BOTCH);
   2350 		}
   2351 		XS_STS(xs) = sp->req_scsi_status & 0xff;
   2352 		if (IS_SCSI(isp)) {
   2353 			if (sp->req_state_flags & RQSF_GOT_SENSE) {
   2354 				MEMCPY(XS_SNSP(xs), sp->req_sense_data,
   2355 					XS_SNSLEN(xs));
   2356 				XS_SNS_IS_VALID(xs);
   2357 			}
   2358 			/*
   2359 			 * A new synchronous rate was negotiated for this
   2360 			 * target. Mark state such that we'll go look up
   2361 			 * that which has changed later.
   2362 			 */
   2363 			if (sp->req_status_flags & RQSTF_NEGOTIATION) {
   2364 				sdparam *sdp = isp->isp_param;
   2365 				sdp += XS_CHANNEL(xs);
   2366 				sdp->isp_devparam[XS_TGT(xs)].dev_refresh = 1;
   2367 				isp->isp_update |= (1 << XS_CHANNEL(xs));
   2368 			}
   2369 		} else {
   2370 			if (XS_STS(xs) == SCSI_CHECK) {
   2371 				XS_SNS_IS_VALID(xs);
   2372 				MEMCPY(XS_SNSP(xs), sp->req_sense_data,
   2373 					XS_SNSLEN(xs));
   2374 				sp->req_state_flags |= RQSF_GOT_SENSE;
   2375 			}
   2376 		}
   2377 		if (XS_NOERR(xs) && XS_STS(xs) == SCSI_BUSY) {
   2378 			XS_SETERR(xs, HBA_TGTBSY);
   2379 		}
   2380 
   2381 		if (sp->req_header.rqs_entry_type == RQSTYPE_RESPONSE) {
   2382 			if (XS_NOERR(xs)) {
   2383 			    if (sp->req_completion_status != RQCS_COMPLETE) {
   2384 				isp_parse_status(isp, sp, xs);
   2385 			    } else {
   2386 				XS_SETERR(xs, HBA_NOERROR);
   2387 			    }
   2388 			}
   2389 		} else if (sp->req_header.rqs_entry_type == RQSTYPE_REQUEST) {
   2390 			if (sp->req_header.rqs_flags & RQSFLAG_FULL) {
   2391 				/*
   2392 				 * Force Queue Full status.
   2393 				 */
   2394 				XS_STS(xs) = SCSI_QFULL;
   2395 				XS_SETERR(xs, HBA_NOERROR);
   2396 			} else if (XS_NOERR(xs)) {
   2397 				XS_SETERR(xs, HBA_BOTCH);
   2398 			}
   2399 		} else {
   2400 			PRINTF("%s: unhandled respose queue type 0x%x\n",
   2401 			    isp->isp_name, sp->req_header.rqs_entry_type);
   2402 			if (XS_NOERR(xs)) {
   2403 				XS_SETERR(xs, HBA_BOTCH);
   2404 			}
   2405 		}
   2406 		if (IS_SCSI(isp)) {
   2407 			XS_RESID(xs) = sp->req_resid;
   2408 		} else if (sp->req_scsi_status & RQCS_RU) {
   2409 			XS_RESID(xs) = sp->req_resid;
   2410 			IDPRINTF(4, ("%s: cnt %d rsd %d\n", isp->isp_name,
   2411 				XS_XFRLEN(xs), sp->req_resid));
   2412 		}
   2413 		if (XS_XFRLEN(xs)) {
   2414 			ISP_DMAFREE(isp, xs, sp->req_handle);
   2415 		}
   2416 		/*
   2417 		 * XXX: If we have a check condition, but no Sense Data,
   2418 		 * XXX: mark it as an error (ARQ failed). We need to
   2419 		 * XXX: to do a more distinct job because there may
   2420 		 * XXX: cases where ARQ is disabled.
   2421 		 */
   2422 		if (XS_STS(xs) == SCSI_CHECK && !(XS_IS_SNS_VALID(xs))) {
   2423 			if (XS_NOERR(xs)) {
   2424 				PRINTF("%s: ARQ failure for target %d lun %d\n",
   2425 				    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2426 				XS_SETERR(xs, HBA_ARQFAIL);
   2427 			}
   2428 		}
   2429 		if ((isp->isp_dblev >= 5) ||
   2430 		    (isp->isp_dblev > 2 && !XS_NOERR(xs))) {
   2431 			PRINTF("%s(%d.%d): FIN dl%d resid%d STS %x",
   2432 			    isp->isp_name, XS_TGT(xs), XS_LUN(xs),
   2433 			    XS_XFRLEN(xs), XS_RESID(xs), XS_STS(xs));
   2434 			if (sp->req_state_flags & RQSF_GOT_SENSE) {
   2435 				PRINTF(" Skey: %x", XS_SNSKEY(xs));
   2436 				if (!(XS_IS_SNS_VALID(xs))) {
   2437 					PRINTF(" BUT NOT SET");
   2438 				}
   2439 			}
   2440 			PRINTF(" XS_ERR=0x%x\n", (unsigned int) XS_ERR(xs));
   2441 		}
   2442 
   2443 		if (isp->isp_nactive > 0)
   2444 		    isp->isp_nactive--;
   2445 		complist[ndone++] = xs;	/* defer completion call until later */
   2446 	}
   2447 
   2448 	/*
   2449 	 * If we looked at any commands, then it's valid to find out
   2450 	 * what the outpointer is. It also is a trigger to update the
   2451 	 * ISP's notion of what we've seen so far.
   2452 	 */
   2453 	if (nlooked) {
   2454 		ISP_WRITE(isp, INMAILBOX5, optr);
   2455 		isp->isp_reqodx = ISP_READ(isp, OUTMAILBOX4);
   2456 	}
   2457 	isp->isp_residx = optr;
   2458 	for (i = 0; i < ndone; i++) {
   2459 		xs = complist[i];
   2460 		if (xs) {
   2461 			XS_CMD_DONE(xs);
   2462 		}
   2463 	}
   2464 	ENABLE_INTS(isp);
   2465 	return (1);
   2466 }
   2467 
   2468 /*
   2469  * Support routines.
   2470  */
   2471 
   2472 static int
   2473 isp_parse_async(isp, mbox)
   2474 	struct ispsoftc *isp;
   2475 	int mbox;
   2476 {
   2477 	int bus;
   2478 	u_int32_t fast_post_handle = 0;
   2479 
   2480 	if (IS_DUALBUS(isp)) {
   2481 		bus = ISP_READ(isp, OUTMAILBOX6);
   2482 	} else {
   2483 		bus = 0;
   2484 	}
   2485 
   2486 	switch (mbox) {
   2487 	case MBOX_COMMAND_COMPLETE:	/* sometimes these show up */
   2488 		break;
   2489 	case ASYNC_BUS_RESET:
   2490 		isp->isp_sendmarker = (1 << bus);
   2491 #ifdef	ISP_TARGET_MODE
   2492 		isp_target_async(isp, bus, ASYNC_BUS_RESET);
   2493 #endif
   2494 		isp_async(isp, ISPASYNC_BUS_RESET, &bus);
   2495 		break;
   2496 	case ASYNC_SYSTEM_ERROR:
   2497 		mbox = ISP_READ(isp, OUTMAILBOX1);
   2498 		PRINTF("%s: Internal FW Error @ RISC Addr 0x%x\n",
   2499 		    isp->isp_name, mbox);
   2500 		isp_restart(isp);
   2501 		/* no point continuing after this */
   2502 		return (-1);
   2503 
   2504 	case ASYNC_RQS_XFER_ERR:
   2505 		PRINTF("%s: Request Queue Transfer Error\n", isp->isp_name);
   2506 		break;
   2507 
   2508 	case ASYNC_RSP_XFER_ERR:
   2509 		PRINTF("%s: Response Queue Transfer Error\n", isp->isp_name);
   2510 		break;
   2511 
   2512 	case ASYNC_QWAKEUP:
   2513 		/*
   2514 		 * We've just been notified that the Queue has woken up.
   2515 		 * We don't need to be chatty about this- just unlatch things
   2516 		 * and move on.
   2517 		 */
   2518 		mbox = ISP_READ(isp, OUTMAILBOX4);
   2519 		break;
   2520 
   2521 	case ASYNC_TIMEOUT_RESET:
   2522 		PRINTF("%s: timeout initiated SCSI bus reset of bus %d\n",
   2523 		    isp->isp_name, bus);
   2524 		isp->isp_sendmarker = (1 << bus);
   2525 #ifdef	ISP_TARGET_MODE
   2526 		isp_target_async(isp, bus, ASYNC_TIMEOUT_RESET);
   2527 #endif
   2528 		break;
   2529 
   2530 	case ASYNC_DEVICE_RESET:
   2531 		PRINTF("%s: device reset on bus %d\n", isp->isp_name, bus);
   2532 		isp->isp_sendmarker = 1 << bus;
   2533 #ifdef	ISP_TARGET_MODE
   2534 		isp_target_async(isp, bus, ASYNC_DEVICE_RESET);
   2535 #endif
   2536 		break;
   2537 
   2538 	case ASYNC_EXTMSG_UNDERRUN:
   2539 		PRINTF("%s: extended message underrun\n", isp->isp_name);
   2540 		break;
   2541 
   2542 	case ASYNC_SCAM_INT:
   2543 		PRINTF("%s: SCAM interrupt\n", isp->isp_name);
   2544 		break;
   2545 
   2546 	case ASYNC_HUNG_SCSI:
   2547 		PRINTF("%s: stalled SCSI Bus after DATA Overrun\n",
   2548 		    isp->isp_name);
   2549 		/* XXX: Need to issue SCSI reset at this point */
   2550 		break;
   2551 
   2552 	case ASYNC_KILLED_BUS:
   2553 		PRINTF("%s: SCSI Bus reset after DATA Overrun\n",
   2554 		    isp->isp_name);
   2555 		break;
   2556 
   2557 	case ASYNC_BUS_TRANSIT:
   2558 		mbox = ISP_READ(isp, OUTMAILBOX2);
   2559 		switch (mbox & 0x1c00) {
   2560 		case SXP_PINS_LVD_MODE:
   2561 			PRINTF("%s: Transition to LVD mode\n", isp->isp_name);
   2562 			((sdparam *)isp->isp_param)->isp_diffmode = 0;
   2563 			((sdparam *)isp->isp_param)->isp_ultramode = 0;
   2564 			((sdparam *)isp->isp_param)->isp_lvdmode = 1;
   2565 			break;
   2566 		case SXP_PINS_HVD_MODE:
   2567 			PRINTF("%s: Transition to Differential mode\n",
   2568 			    isp->isp_name);
   2569 			((sdparam *)isp->isp_param)->isp_diffmode = 1;
   2570 			((sdparam *)isp->isp_param)->isp_ultramode = 0;
   2571 			((sdparam *)isp->isp_param)->isp_lvdmode = 0;
   2572 			break;
   2573 		case SXP_PINS_SE_MODE:
   2574 			PRINTF("%s: Transition to Single Ended mode\n",
   2575 			    isp->isp_name);
   2576 			((sdparam *)isp->isp_param)->isp_diffmode = 0;
   2577 			((sdparam *)isp->isp_param)->isp_ultramode = 1;
   2578 			((sdparam *)isp->isp_param)->isp_lvdmode = 0;
   2579 			break;
   2580 		default:
   2581 			PRINTF("%s: Transition to unknown mode 0x%x\n",
   2582 			    isp->isp_name, mbox);
   2583 			break;
   2584 		}
   2585 		/*
   2586 		 * XXX: Set up to renegotiate again!
   2587 		 */
   2588 		/* Can only be for a 1080... */
   2589 		isp->isp_sendmarker = (1 << bus);
   2590 		break;
   2591 
   2592 	case ASYNC_CMD_CMPLT:
   2593 		fast_post_handle = (ISP_READ(isp, OUTMAILBOX2) << 16) |
   2594 		    ISP_READ(isp, OUTMAILBOX1);
   2595 		IDPRINTF(3, ("%s: fast post completion of %u\n", isp->isp_name,
   2596 		    fast_post_handle));
   2597 		break;
   2598 
   2599 	case ASYNC_CTIO_DONE:
   2600 		/* Should only occur when Fast Posting Set for 2100s */
   2601 		PRINTF("%s: CTIO done\n", isp->isp_name);
   2602 		break;
   2603 
   2604 	case ASYNC_LIP_OCCURRED:
   2605 		((fcparam *) isp->isp_param)->isp_lipseq =
   2606 		    ISP_READ(isp, OUTMAILBOX1);
   2607 		((fcparam *) isp->isp_param)->isp_fwstate = FW_CONFIG_WAIT;
   2608 		((fcparam *) isp->isp_param)->isp_loopstate = LOOP_LIP_RCVD;
   2609 		isp->isp_sendmarker = 1;
   2610 		isp_mark_getpdb_all(isp);
   2611 		IDPRINTF(1, ("%s: LIP occurred\n", isp->isp_name));
   2612 		break;
   2613 
   2614 	case ASYNC_LOOP_UP:
   2615 		isp->isp_sendmarker = 1;
   2616 		((fcparam *) isp->isp_param)->isp_fwstate = FW_CONFIG_WAIT;
   2617 		((fcparam *) isp->isp_param)->isp_loopstate = LOOP_LIP_RCVD;
   2618 		isp_mark_getpdb_all(isp);
   2619 		isp_async(isp, ISPASYNC_LOOP_UP, NULL);
   2620 		break;
   2621 
   2622 	case ASYNC_LOOP_DOWN:
   2623 		isp->isp_sendmarker = 1;
   2624 		((fcparam *) isp->isp_param)->isp_fwstate = FW_CONFIG_WAIT;
   2625 		((fcparam *) isp->isp_param)->isp_loopstate = LOOP_NIL;
   2626 		isp_mark_getpdb_all(isp);
   2627 		isp_async(isp, ISPASYNC_LOOP_DOWN, NULL);
   2628 		break;
   2629 
   2630 	case ASYNC_LOOP_RESET:
   2631 		isp->isp_sendmarker = 1 << bus;
   2632 		((fcparam *) isp->isp_param)->isp_fwstate = FW_CONFIG_WAIT;
   2633 		((fcparam *) isp->isp_param)->isp_loopstate = LOOP_NIL;
   2634 		isp_mark_getpdb_all(isp);
   2635 		PRINTF("%s: Loop RESET\n", isp->isp_name);
   2636 #ifdef	ISP_TARGET_MODE
   2637 		isp_target_async(isp, bus, ASYNC_LOOP_RESET);
   2638 #endif
   2639 		break;
   2640 
   2641 	case ASYNC_PDB_CHANGED:
   2642 		isp->isp_sendmarker = 1;
   2643 		((fcparam *) isp->isp_param)->isp_loopstate = LOOP_PDB_RCVD;
   2644 		isp_mark_getpdb_all(isp);
   2645 		IDPRINTF(2, ("%s: Port Database Changed\n", isp->isp_name));
   2646 		break;
   2647 
   2648 	case ASYNC_CHANGE_NOTIFY:
   2649 		isp_mark_getpdb_all(isp);
   2650 		/*
   2651 		 * Not correct, but it will force us to rescan the loop.
   2652 		 */
   2653 		((fcparam *) isp->isp_param)->isp_loopstate = LOOP_PDB_RCVD;
   2654 		isp_async(isp, ISPASYNC_CHANGE_NOTIFY, NULL);
   2655 		break;
   2656 
   2657 	default:
   2658 		PRINTF("%s: unknown async code 0x%x\n", isp->isp_name, mbox);
   2659 		break;
   2660 	}
   2661 	return (fast_post_handle);
   2662 }
   2663 
   2664 /*
   2665  * Handle other response entries. A pointer to the request queue output
   2666  * index is here in case we want to eat several entries at once, although
   2667  * this is not used currently.
   2668  */
   2669 
   2670 static int
   2671 isp_handle_other_response(isp, sp, optrp)
   2672 	struct ispsoftc *isp;
   2673 	ispstatusreq_t *sp;
   2674 	u_int16_t *optrp;
   2675 {
   2676 	switch (sp->req_header.rqs_entry_type) {
   2677 	case RQSTYPE_ATIO:
   2678 	case RQSTYPE_CTIO0:
   2679 	case RQSTYPE_ENABLE_LUN:
   2680 	case RQSTYPE_MODIFY_LUN:
   2681 	case RQSTYPE_NOTIFY:
   2682 	case RQSTYPE_NOTIFY_ACK:
   2683 	case RQSTYPE_CTIO1:
   2684 	case RQSTYPE_ATIO2:
   2685 	case RQSTYPE_CTIO2:
   2686 	case RQSTYPE_CTIO3:
   2687 #ifdef	ISP_TARGET_MODE
   2688 		return (isp_target_entry(isp, sp));
   2689 #else
   2690 		/* FALLTHROUGH */
   2691 #endif
   2692 	case RQSTYPE_REQUEST:
   2693 	default:
   2694 		PRINTF("%s: unhandled response type 0x%x\n", isp->isp_name,
   2695 		    sp->req_header.rqs_entry_type);
   2696 		return (-1);
   2697 	}
   2698 }
   2699 
   2700 static void
   2701 isp_parse_status(isp, sp, xs)
   2702 	struct ispsoftc *isp;
   2703 	ispstatusreq_t *sp;
   2704 	ISP_SCSI_XFER_T *xs;
   2705 {
   2706 	switch (sp->req_completion_status) {
   2707 	case RQCS_COMPLETE:
   2708 		XS_SETERR(xs, HBA_NOERROR);
   2709 		return;
   2710 
   2711 	case RQCS_INCOMPLETE:
   2712 		if ((sp->req_state_flags & RQSF_GOT_TARGET) == 0) {
   2713 			IDPRINTF(3, ("%s: Selection Timeout for target %d\n",
   2714 			    isp->isp_name, XS_TGT(xs)));
   2715 			XS_SETERR(xs, HBA_SELTIMEOUT);
   2716 			return;
   2717 		}
   2718 		PRINTF("%s: command incomplete for target %d lun %d, state "
   2719 		    "0x%x\n", isp->isp_name, XS_TGT(xs), XS_LUN(xs),
   2720 		    sp->req_state_flags);
   2721 		break;
   2722 
   2723 	case RQCS_DMA_ERROR:
   2724 		PRINTF("%s: DMA error for command on target %d, lun %d\n",
   2725 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2726 		break;
   2727 
   2728 	case RQCS_TRANSPORT_ERROR:
   2729 		PRINTF("%s: transport error\n", isp->isp_name);
   2730 		isp_prtstst(sp);
   2731 		break;
   2732 
   2733 	case RQCS_RESET_OCCURRED:
   2734 		IDPRINTF(2, ("%s: bus %d reset destroyed command for target %d "
   2735 		    "lun %d\n", isp->isp_name, XS_CHANNEL(xs), XS_TGT(xs),
   2736 		    XS_LUN(xs)));
   2737 		/*
   2738 		 * XXX: Get port number for bus
   2739 		 */
   2740 		isp->isp_sendmarker = 3;
   2741 		XS_SETERR(xs, HBA_BUSRESET);
   2742 		return;
   2743 
   2744 	case RQCS_ABORTED:
   2745 		PRINTF("%s: command aborted for target %d lun %d\n",
   2746 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2747 		/*
   2748 		 * XXX: Get port number for bus
   2749 		 */
   2750 		isp->isp_sendmarker = 3;
   2751 		XS_SETERR(xs, HBA_ABORTED);
   2752 		return;
   2753 
   2754 	case RQCS_TIMEOUT:
   2755 		IDPRINTF(2, ("%s: command timed out for target %d lun %d\n",
   2756 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs)));
   2757 		XS_SETERR(xs, HBA_CMDTIMEOUT);
   2758 		return;
   2759 
   2760 	case RQCS_DATA_OVERRUN:
   2761 		if (IS_FC(isp)) {
   2762 			XS_RESID(xs) = sp->req_resid;
   2763 			break;
   2764 		}
   2765 		XS_SETERR(xs, HBA_DATAOVR);
   2766 		return;
   2767 
   2768 	case RQCS_COMMAND_OVERRUN:
   2769 		PRINTF("%s: command overrun for command on target %d, lun %d\n",
   2770 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2771 		break;
   2772 
   2773 	case RQCS_STATUS_OVERRUN:
   2774 		PRINTF("%s: status overrun for command on target %d, lun %d\n",
   2775 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2776 		break;
   2777 
   2778 	case RQCS_BAD_MESSAGE:
   2779 		PRINTF("%s: message not COMMAND COMPLETE after status on "
   2780 		    "target %d, lun %d\n", isp->isp_name, XS_TGT(xs),
   2781 		    XS_LUN(xs));
   2782 		break;
   2783 
   2784 	case RQCS_NO_MESSAGE_OUT:
   2785 		PRINTF("%s: No MESSAGE OUT phase after selection on "
   2786 		    "target %d, lun %d\n", isp->isp_name, XS_TGT(xs),
   2787 		    XS_LUN(xs));
   2788 		break;
   2789 
   2790 	case RQCS_EXT_ID_FAILED:
   2791 		PRINTF("%s: EXTENDED IDENTIFY failed on target %d, lun %d\n",
   2792 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2793 		break;
   2794 
   2795 	case RQCS_IDE_MSG_FAILED:
   2796 		PRINTF("%s: target %d lun %d rejected INITIATOR DETECTED "
   2797 		    "ERROR message\n", isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2798 		break;
   2799 
   2800 	case RQCS_ABORT_MSG_FAILED:
   2801 		PRINTF("%s: target %d lun %d rejected ABORT message\n",
   2802 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2803 		break;
   2804 
   2805 	case RQCS_REJECT_MSG_FAILED:
   2806 		PRINTF("%s: target %d lun %d rejected MESSAGE REJECT message\n",
   2807 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2808 		break;
   2809 
   2810 	case RQCS_NOP_MSG_FAILED:
   2811 		PRINTF("%s: target %d lun %d rejected NOP message\n",
   2812 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2813 		break;
   2814 
   2815 	case RQCS_PARITY_ERROR_MSG_FAILED:
   2816 		PRINTF("%s: target %d lun %d rejected MESSAGE PARITY ERROR "
   2817 		    "message\n", isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2818 		break;
   2819 
   2820 	case RQCS_DEVICE_RESET_MSG_FAILED:
   2821 		PRINTF("%s: target %d lun %d rejected BUS DEVICE RESET "
   2822 		    "message\n", isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2823 		break;
   2824 
   2825 	case RQCS_ID_MSG_FAILED:
   2826 		PRINTF("%s: target %d lun %d rejected IDENTIFY "
   2827 		    "message\n", isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2828 		break;
   2829 
   2830 	case RQCS_UNEXP_BUS_FREE:
   2831 		PRINTF("%s: target %d lun %d had an unexpected bus free\n",
   2832 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2833 		break;
   2834 
   2835 	case RQCS_DATA_UNDERRUN:
   2836 		if (IS_FC(isp)) {
   2837 			XS_RESID(xs) = sp->req_resid;
   2838 			/* an UNDERRUN is not a botch ??? */
   2839 		}
   2840 		XS_SETERR(xs, HBA_NOERROR);
   2841 		return;
   2842 
   2843 	case RQCS_XACT_ERR1:
   2844 		PRINTF("%s: HBA attempted queued transaction with disconnect "
   2845 		    "not set for target %d lun %d\n", isp->isp_name, XS_TGT(xs),
   2846 		    XS_LUN(xs));
   2847 		break;
   2848 
   2849 	case RQCS_XACT_ERR2:
   2850 		PRINTF("%s: HBA attempted queued transaction to target "
   2851 		    "routine %d on target %d\n", isp->isp_name, XS_LUN(xs),
   2852 		    XS_TGT(xs));
   2853 		break;
   2854 
   2855 	case RQCS_XACT_ERR3:
   2856 		PRINTF("%s: HBA attempted queued transaction for target %d lun "
   2857 		    "%d when queueing disabled\n", isp->isp_name, XS_TGT(xs),
   2858 		    XS_LUN(xs));
   2859 		break;
   2860 
   2861 	case RQCS_BAD_ENTRY:
   2862 		PRINTF("%s: invalid IOCB entry type detected\n", isp->isp_name);
   2863 		break;
   2864 
   2865 	case RQCS_QUEUE_FULL:
   2866 		IDPRINTF(3, ("%s: internal queues full for target %d lun %d "
   2867 		    "status 0x%x\n", isp->isp_name, XS_TGT(xs), XS_LUN(xs),
   2868 		    XS_STS(xs)));
   2869 		/*
   2870 		 * If QFULL or some other status byte is set, then this
   2871 		 * isn't an error, per se.
   2872 		 */
   2873 		if (XS_STS(xs) != 0) {
   2874 			XS_SETERR(xs, HBA_NOERROR);
   2875 			return;
   2876 		}
   2877 		break;
   2878 
   2879 	case RQCS_PHASE_SKIPPED:
   2880 		PRINTF("%s: SCSI phase skipped (e.g., COMMAND COMPLETE w/o "
   2881 		    "STATUS phase) for target %d lun %d\n", isp->isp_name,
   2882 		    XS_TGT(xs), XS_LUN(xs));
   2883 		break;
   2884 
   2885 	case RQCS_ARQS_FAILED:
   2886 		PRINTF("%s: Auto Request Sense failed for target %d lun %d\n",
   2887 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2888 		XS_SETERR(xs, HBA_ARQFAIL);
   2889 		return;
   2890 
   2891 	case RQCS_WIDE_FAILED:
   2892 		PRINTF("%s: Wide Negotiation failed for target %d lun %d\n",
   2893 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2894 		if (IS_SCSI(isp)) {
   2895 			sdparam *sdp = isp->isp_param;
   2896 			sdp += XS_CHANNEL(xs);
   2897 			sdp->isp_devparam[XS_TGT(xs)].dev_flags &= ~DPARM_WIDE;
   2898 			sdp->isp_devparam[XS_TGT(xs)].dev_update = 1;
   2899 			isp->isp_update = XS_CHANNEL(xs)+1;
   2900 		}
   2901 		XS_SETERR(xs, HBA_NOERROR);
   2902 		return;
   2903 
   2904 	case RQCS_SYNCXFER_FAILED:
   2905 		PRINTF("%s: SDTR Message failed for target %d lun %d\n",
   2906 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2907 		if (IS_SCSI(isp)) {
   2908 			sdparam *sdp = isp->isp_param;
   2909 			sdp += XS_CHANNEL(xs);
   2910 			sdp->isp_devparam[XS_TGT(xs)].dev_flags &= ~DPARM_SYNC;
   2911 			sdp->isp_devparam[XS_TGT(xs)].dev_update = 1;
   2912 			isp->isp_update = XS_CHANNEL(xs)+1;
   2913 		}
   2914 		break;
   2915 
   2916 	case RQCS_LVD_BUSERR:
   2917 		PRINTF("%s: Bad LVD Bus condition while talking to target %d "
   2918 		    "lun %d\n", isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2919 		break;
   2920 
   2921 	case RQCS_PORT_UNAVAILABLE:
   2922 		/*
   2923 		 * No such port on the loop. Moral equivalent of SELTIMEO
   2924 		 */
   2925 		IDPRINTF(3, ("%s: Port Unavailable for target %d\n",
   2926 		    isp->isp_name, XS_TGT(xs)));
   2927 		XS_SETERR(xs, HBA_SELTIMEOUT);
   2928 		return;
   2929 
   2930 	case RQCS_PORT_LOGGED_OUT:
   2931 		/*
   2932 		 * It was there (maybe)- treat as a selection timeout.
   2933 		 */
   2934 		IDPRINTF(2, ("%s: port logout for target %d\n",
   2935 			isp->isp_name, XS_TGT(xs)));
   2936 		XS_SETERR(xs, HBA_SELTIMEOUT);
   2937 		return;
   2938 
   2939 	case RQCS_PORT_CHANGED:
   2940 		PRINTF("%s: port changed for target %d\n",
   2941 			isp->isp_name, XS_TGT(xs));
   2942 		break;
   2943 
   2944 	case RQCS_PORT_BUSY:
   2945 		PRINTF("%s: port busy for target %d\n",
   2946 			isp->isp_name, XS_TGT(xs));
   2947 		XS_SETERR(xs, HBA_TGTBSY);
   2948 		return;
   2949 
   2950 	default:
   2951 		PRINTF("%s: comp status %x\n", isp->isp_name,
   2952 		    sp->req_completion_status);
   2953 		break;
   2954 	}
   2955 	XS_SETERR(xs, HBA_BOTCH);
   2956 }
   2957 
   2958 static void
   2959 isp_fastpost_complete(isp, fph)
   2960 	struct ispsoftc *isp;
   2961 	u_int32_t fph;
   2962 {
   2963 	ISP_SCSI_XFER_T *xs;
   2964 
   2965 	if (fph < 1) {
   2966 		return;
   2967 	}
   2968 	xs = isp_find_xs(isp, fph);
   2969 	if (xs == NULL) {
   2970 		PRINTF("%s: command for fast posting handle 0x%x not found\n",
   2971 		    isp->isp_name, fph);
   2972 		return;
   2973 	}
   2974 	isp_destroy_handle(isp, fph);
   2975 
   2976 	/*
   2977 	 * Since we don't have a result queue entry item,
   2978 	 * we must believe that SCSI status is zero and
   2979 	 * that all data transferred.
   2980 	 */
   2981 	XS_RESID(xs) = 0;
   2982 	XS_STS(xs) = 0;
   2983 	if (XS_XFRLEN(xs)) {
   2984 		ISP_DMAFREE(isp, xs, fph);
   2985 	}
   2986 	XS_CMD_DONE(xs);
   2987 	if (isp->isp_nactive)
   2988 		isp->isp_nactive--;
   2989 }
   2990 
   2991 #define	HINIB(x)			((x) >> 0x4)
   2992 #define	LONIB(x)			((x)  & 0xf)
   2993 #define	MAKNIB(a, b)			(((a) << 4) | (b))
   2994 static u_int8_t mbpcnt[] = {
   2995 	MAKNIB(1, 1),	/* 0x00: MBOX_NO_OP */
   2996 	MAKNIB(5, 5),	/* 0x01: MBOX_LOAD_RAM */
   2997 	MAKNIB(2, 0),	/* 0x02: MBOX_EXEC_FIRMWARE */
   2998 	MAKNIB(5, 5),	/* 0x03: MBOX_DUMP_RAM */
   2999 	MAKNIB(3, 3),	/* 0x04: MBOX_WRITE_RAM_WORD */
   3000 	MAKNIB(2, 3),	/* 0x05: MBOX_READ_RAM_WORD */
   3001 	MAKNIB(6, 6),	/* 0x06: MBOX_MAILBOX_REG_TEST */
   3002 	MAKNIB(2, 3),	/* 0x07: MBOX_VERIFY_CHECKSUM	*/
   3003 	MAKNIB(1, 4),	/* 0x08: MBOX_ABOUT_FIRMWARE */
   3004 	MAKNIB(0, 0),	/* 0x09: */
   3005 	MAKNIB(0, 0),	/* 0x0a: */
   3006 	MAKNIB(0, 0),	/* 0x0b: */
   3007 	MAKNIB(0, 0),	/* 0x0c: */
   3008 	MAKNIB(0, 0),	/* 0x0d: */
   3009 	MAKNIB(1, 2),	/* 0x0e: MBOX_CHECK_FIRMWARE */
   3010 	MAKNIB(0, 0),	/* 0x0f: */
   3011 	MAKNIB(5, 5),	/* 0x10: MBOX_INIT_REQ_QUEUE */
   3012 	MAKNIB(6, 6),	/* 0x11: MBOX_INIT_RES_QUEUE */
   3013 	MAKNIB(4, 4),	/* 0x12: MBOX_EXECUTE_IOCB */
   3014 	MAKNIB(2, 2),	/* 0x13: MBOX_WAKE_UP	*/
   3015 	MAKNIB(1, 6),	/* 0x14: MBOX_STOP_FIRMWARE */
   3016 	MAKNIB(4, 4),	/* 0x15: MBOX_ABORT */
   3017 	MAKNIB(2, 2),	/* 0x16: MBOX_ABORT_DEVICE */
   3018 	MAKNIB(3, 3),	/* 0x17: MBOX_ABORT_TARGET */
   3019 	MAKNIB(3, 1),	/* 0x18: MBOX_BUS_RESET */
   3020 	MAKNIB(2, 3),	/* 0x19: MBOX_STOP_QUEUE */
   3021 	MAKNIB(2, 3),	/* 0x1a: MBOX_START_QUEUE */
   3022 	MAKNIB(2, 3),	/* 0x1b: MBOX_SINGLE_STEP_QUEUE */
   3023 	MAKNIB(2, 3),	/* 0x1c: MBOX_ABORT_QUEUE */
   3024 	MAKNIB(2, 4),	/* 0x1d: MBOX_GET_DEV_QUEUE_STATUS */
   3025 	MAKNIB(0, 0),	/* 0x1e: */
   3026 	MAKNIB(1, 3),	/* 0x1f: MBOX_GET_FIRMWARE_STATUS */
   3027 	MAKNIB(1, 4),	/* 0x20: MBOX_GET_INIT_SCSI_ID, MBOX_GET_LOOP_ID */
   3028 	MAKNIB(1, 3),	/* 0x21: MBOX_GET_SELECT_TIMEOUT */
   3029 	MAKNIB(1, 3),	/* 0x22: MBOX_GET_RETRY_COUNT	*/
   3030 	MAKNIB(1, 2),	/* 0x23: MBOX_GET_TAG_AGE_LIMIT */
   3031 	MAKNIB(1, 2),	/* 0x24: MBOX_GET_CLOCK_RATE */
   3032 	MAKNIB(1, 2),	/* 0x25: MBOX_GET_ACT_NEG_STATE */
   3033 	MAKNIB(1, 2),	/* 0x26: MBOX_GET_ASYNC_DATA_SETUP_TIME */
   3034 	MAKNIB(1, 3),	/* 0x27: MBOX_GET_PCI_PARAMS */
   3035 	MAKNIB(2, 4),	/* 0x28: MBOX_GET_TARGET_PARAMS */
   3036 	MAKNIB(2, 4),	/* 0x29: MBOX_GET_DEV_QUEUE_PARAMS */
   3037 	MAKNIB(1, 2),	/* 0x2a: MBOX_GET_RESET_DELAY_PARAMS */
   3038 	MAKNIB(0, 0),	/* 0x2b: */
   3039 	MAKNIB(0, 0),	/* 0x2c: */
   3040 	MAKNIB(0, 0),	/* 0x2d: */
   3041 	MAKNIB(0, 0),	/* 0x2e: */
   3042 	MAKNIB(0, 0),	/* 0x2f: */
   3043 	MAKNIB(2, 2),	/* 0x30: MBOX_SET_INIT_SCSI_ID */
   3044 	MAKNIB(2, 3),	/* 0x31: MBOX_SET_SELECT_TIMEOUT */
   3045 	MAKNIB(3, 3),	/* 0x32: MBOX_SET_RETRY_COUNT	*/
   3046 	MAKNIB(2, 2),	/* 0x33: MBOX_SET_TAG_AGE_LIMIT */
   3047 	MAKNIB(2, 2),	/* 0x34: MBOX_SET_CLOCK_RATE */
   3048 	MAKNIB(2, 2),	/* 0x35: MBOX_SET_ACT_NEG_STATE */
   3049 	MAKNIB(2, 2),	/* 0x36: MBOX_SET_ASYNC_DATA_SETUP_TIME */
   3050 	MAKNIB(3, 3),	/* 0x37: MBOX_SET_PCI_CONTROL_PARAMS */
   3051 	MAKNIB(4, 4),	/* 0x38: MBOX_SET_TARGET_PARAMS */
   3052 	MAKNIB(4, 4),	/* 0x39: MBOX_SET_DEV_QUEUE_PARAMS */
   3053 	MAKNIB(1, 2),	/* 0x3a: MBOX_SET_RESET_DELAY_PARAMS */
   3054 	MAKNIB(0, 0),	/* 0x3b: */
   3055 	MAKNIB(0, 0),	/* 0x3c: */
   3056 	MAKNIB(0, 0),	/* 0x3d: */
   3057 	MAKNIB(0, 0),	/* 0x3e: */
   3058 	MAKNIB(0, 0),	/* 0x3f: */
   3059 	MAKNIB(1, 2),	/* 0x40: MBOX_RETURN_BIOS_BLOCK_ADDR */
   3060 	MAKNIB(6, 1),	/* 0x41: MBOX_WRITE_FOUR_RAM_WORDS */
   3061 	MAKNIB(2, 3),	/* 0x42: MBOX_EXEC_BIOS_IOCB */
   3062 	MAKNIB(0, 0),	/* 0x43: */
   3063 	MAKNIB(0, 0),	/* 0x44: */
   3064 	MAKNIB(0, 0),	/* 0x45: */
   3065 	MAKNIB(0, 0),	/* 0x46: */
   3066 	MAKNIB(0, 0),	/* 0x47: */
   3067 	MAKNIB(0, 0),	/* 0x48: */
   3068 	MAKNIB(0, 0),	/* 0x49: */
   3069 	MAKNIB(2, 1),	/* 0x4a: MBOX_SET_FIRMWARE_FEATURES */
   3070 	MAKNIB(1, 2),	/* 0x4b: MBOX_GET_FIRMWARE_FEATURES */
   3071 	MAKNIB(0, 0),	/* 0x4c: */
   3072 	MAKNIB(0, 0),	/* 0x4d: */
   3073 	MAKNIB(0, 0),	/* 0x4e: */
   3074 	MAKNIB(0, 0),	/* 0x4f: */
   3075 	MAKNIB(0, 0),	/* 0x50: */
   3076 	MAKNIB(0, 0),	/* 0x51: */
   3077 	MAKNIB(0, 0),	/* 0x52: */
   3078 	MAKNIB(0, 0),	/* 0x53: */
   3079 	MAKNIB(8, 0),	/* 0x54: MBOX_EXEC_COMMAND_IOCB_A64 */
   3080 	MAKNIB(0, 0),	/* 0x55: */
   3081 	MAKNIB(0, 0),	/* 0x56: */
   3082 	MAKNIB(0, 0),	/* 0x57: */
   3083 	MAKNIB(0, 0),	/* 0x58: */
   3084 	MAKNIB(0, 0),	/* 0x59: */
   3085 	MAKNIB(0, 0),	/* 0x5a: */
   3086 	MAKNIB(0, 0),	/* 0x5b: */
   3087 	MAKNIB(0, 0),	/* 0x5c: */
   3088 	MAKNIB(0, 0),	/* 0x5d: */
   3089 	MAKNIB(0, 0),	/* 0x5e: */
   3090 	MAKNIB(0, 0),	/* 0x5f: */
   3091 	MAKNIB(8, 6),	/* 0x60: MBOX_INIT_FIRMWARE */
   3092 	MAKNIB(0, 0),	/* 0x61: */
   3093 	MAKNIB(2, 1),	/* 0x62: MBOX_INIT_LIP */
   3094 	MAKNIB(8, 1),	/* 0x63: MBOX_GET_FC_AL_POSITION_MAP */
   3095 	MAKNIB(8, 1),	/* 0x64: MBOX_GET_PORT_DB */
   3096 	MAKNIB(3, 1),	/* 0x65: MBOX_CLEAR_ACA */
   3097 	MAKNIB(3, 1),	/* 0x66: MBOX_TARGET_RESET */
   3098 	MAKNIB(3, 1),	/* 0x67: MBOX_CLEAR_TASK_SET */
   3099 	MAKNIB(3, 1),	/* 0x68: MBOX_ABORT_TASK_SET */
   3100 	MAKNIB(1, 2),	/* 0x69: MBOX_GET_FW_STATE */
   3101 	MAKNIB(2, 8),	/* 0x6a: MBOX_GET_PORT_NAME */
   3102 	MAKNIB(8, 1),	/* 0x6b: MBOX_GET_LINK_STATUS */
   3103 	MAKNIB(4, 4),	/* 0x6c: MBOX_INIT_LIP_RESET */
   3104 	MAKNIB(0, 0),	/* 0x6d: */
   3105 	MAKNIB(8, 2),	/* 0x6e: MBOX_SEND_SNS */
   3106 	MAKNIB(4, 3),	/* 0x6f: MBOX_FABRIC_LOGIN */
   3107 	MAKNIB(2, 1),	/* 0x70: MBOX_SEND_CHANGE_REQUEST */
   3108 	MAKNIB(2, 1),	/* 0x71: MBOX_FABRIC_LOGOUT */
   3109 	MAKNIB(4, 1)	/* 0x72: MBOX_INIT_LIP_LOGIN */
   3110 };
   3111 #define	NMBCOM	(sizeof (mbpcnt) / sizeof (mbpcnt[0]))
   3112 
   3113 static void
   3114 isp_mboxcmd(isp, mbp)
   3115 	struct ispsoftc *isp;
   3116 	mbreg_t *mbp;
   3117 {
   3118 	int outparam, inparam;
   3119 	int loops, dld = 0;
   3120 	u_int8_t opcode;
   3121 
   3122 	if (mbp->param[0] == ISP2100_SET_PCI_PARAM) {
   3123 		opcode = mbp->param[0] = MBOX_SET_PCI_PARAMETERS;
   3124 		inparam = 4;
   3125 		outparam = 4;
   3126 		goto command_known;
   3127 	} else if (mbp->param[0] > NMBCOM) {
   3128 		PRINTF("%s: bad command %x\n", isp->isp_name, mbp->param[0]);
   3129 		return;
   3130 	}
   3131 
   3132 	opcode = mbp->param[0];
   3133 	inparam = HINIB(mbpcnt[mbp->param[0]]);
   3134 	outparam =  LONIB(mbpcnt[mbp->param[0]]);
   3135 
   3136 	if (inparam == 0 && outparam == 0) {
   3137 		PRINTF("%s: no parameters for %x\n", isp->isp_name,
   3138 			mbp->param[0]);
   3139 		return;
   3140 	}
   3141 
   3142 
   3143 	/*
   3144 	 * Check for variants
   3145 	 */
   3146 #ifdef	ISP2100_SCCLUN
   3147 	if (IS_FC(isp)) {
   3148 		switch (mbp->param[0]) {
   3149 		case MBOX_ABORT:
   3150 			inparam = 7;
   3151 			break;
   3152 		case MBOX_ABORT_DEVICE:
   3153 		case MBOX_START_QUEUE:
   3154 		case MBOX_STOP_QUEUE:
   3155 		case MBOX_SINGLE_STEP_QUEUE:
   3156 		case MBOX_ABORT_QUEUE:
   3157 		case MBOX_GET_DEV_QUEUE_STATUS:
   3158 			inparam = 3;
   3159 			break;
   3160 		case MBOX_BUS_RESET:
   3161 			inparam = 2;
   3162 			break;
   3163 		default:
   3164 			break;
   3165 		}
   3166 	}
   3167 #endif
   3168 
   3169 command_known:
   3170 
   3171 	/*
   3172 	 * Set semaphore on mailbox registers to win any races to acquire them.
   3173 	 */
   3174 	ISP_WRITE(isp, BIU_SEMA, 1);
   3175 
   3176 	/*
   3177 	 * Qlogic Errata for the ISP2100 says that there is a necessary
   3178 	 * debounce between between writing the semaphore register
   3179 	 * and reading a mailbox register. I believe we're okay here.
   3180 	 */
   3181 
   3182 	/*
   3183 	 * Make sure we can send some words.
   3184 	 * Check to see if there's an async mbox event pending.
   3185 	 */
   3186 
   3187 	loops = MBOX_DELAY_COUNT;
   3188 	while ((ISP_READ(isp, HCCR) & HCCR_HOST_INT) != 0) {
   3189 		if (ISP_READ(isp, BIU_SEMA) & 1) {
   3190 			int fph;
   3191 			u_int16_t mbox = ISP_READ(isp, OUTMAILBOX0);
   3192 			/*
   3193 			 * We have a pending MBOX async event.
   3194 			 */
   3195 			if (mbox & 0x8000) {
   3196 				fph = isp_parse_async(isp, (int) mbox);
   3197 				IDPRINTF(5, ("%s: line %d, fph %d\n",
   3198 				    isp->isp_name, __LINE__, fph));
   3199 				ISP_WRITE(isp, BIU_SEMA, 0);
   3200 				ISP_WRITE(isp, HCCR, HCCR_CMD_CLEAR_RISC_INT);
   3201 				if (fph < 0) {
   3202 					return;
   3203 				} else if (fph > 0) {
   3204 					isp_fastpost_complete(isp, fph);
   3205 				}
   3206 				SYS_DELAY(100);
   3207 				goto command_known;
   3208 			}
   3209 			/*
   3210 			 * We have a pending MBOX completion? Might be
   3211 			 * from a previous command. We can't (sometimes)
   3212 			 * just clear HOST INTERRUPT, so we'll just silently
   3213 			 * eat this here.
   3214 			 */
   3215 			if (mbox & 0x4000) {
   3216 				IDPRINTF(5, ("%s: line %d, mbox 0x%x\n",
   3217 				    isp->isp_name, __LINE__, mbox));
   3218 				ISP_WRITE(isp, BIU_SEMA, 0);
   3219 				ISP_WRITE(isp, HCCR, HCCR_CMD_CLEAR_RISC_INT);
   3220 				SYS_DELAY(100);
   3221 				goto command_known;
   3222 			}
   3223 		}
   3224 		SYS_DELAY(100);
   3225 		if (--loops < 0) {
   3226 			if (dld++ > 10) {
   3227 				PRINTF("%s: isp_mboxcmd could not get command "
   3228 				    "started\n", isp->isp_name);
   3229 				return;
   3230 			}
   3231 			ISP_WRITE(isp, BIU_SEMA, 0);
   3232 			ISP_WRITE(isp, HCCR, HCCR_CMD_CLEAR_RISC_INT);
   3233 			goto command_known;
   3234 		}
   3235 	}
   3236 
   3237 	/*
   3238 	 * Write input parameters.
   3239 	 *
   3240 	 * Special case some of the setups for the dual port SCSI cards.
   3241 	 * XXX Eventually will be fixed by converting register write/read
   3242 	 * XXX counts to bitmasks.
   3243 	 */
   3244 	if (IS_DUALBUS(isp)) {
   3245 		switch (opcode) {
   3246 		case MBOX_GET_RETRY_COUNT:
   3247 		case MBOX_SET_RETRY_COUNT:
   3248 			ISP_WRITE(isp, INMAILBOX7, mbp->param[7]);
   3249 			mbp->param[7] = 0;
   3250 			ISP_WRITE(isp, INMAILBOX6, mbp->param[6]);
   3251 			mbp->param[6] = 0;
   3252 			break;
   3253 		case MBOX_SET_ASYNC_DATA_SETUP_TIME:
   3254 		case MBOX_SET_ACT_NEG_STATE:
   3255 		case MBOX_SET_TAG_AGE_LIMIT:
   3256 		case MBOX_SET_SELECT_TIMEOUT:
   3257 			ISP_WRITE(isp, INMAILBOX2, mbp->param[2]);
   3258 			mbp->param[2] = 0;
   3259 			break;
   3260 		}
   3261 	}
   3262 
   3263 	switch (inparam) {
   3264 	case 8: ISP_WRITE(isp, INMAILBOX7, mbp->param[7]); mbp->param[7] = 0;
   3265 	case 7: ISP_WRITE(isp, INMAILBOX6, mbp->param[6]); mbp->param[6] = 0;
   3266 	case 6:
   3267 		/*
   3268 		 * The Qlogic 2100 cannot have registers 4 and 5 written to
   3269 		 * after initialization or BAD THINGS HAPPEN (tm).
   3270 		 */
   3271 		if (IS_SCSI(isp) || mbp->param[0] == MBOX_INIT_FIRMWARE)
   3272 			ISP_WRITE(isp, INMAILBOX5, mbp->param[5]);
   3273 		mbp->param[5] = 0;
   3274 	case 5:
   3275 		if (IS_SCSI(isp) || mbp->param[0] == MBOX_INIT_FIRMWARE)
   3276 			ISP_WRITE(isp, INMAILBOX4, mbp->param[4]);
   3277 		mbp->param[4] = 0;
   3278 	case 4: ISP_WRITE(isp, INMAILBOX3, mbp->param[3]); mbp->param[3] = 0;
   3279 	case 3: ISP_WRITE(isp, INMAILBOX2, mbp->param[2]); mbp->param[2] = 0;
   3280 	case 2: ISP_WRITE(isp, INMAILBOX1, mbp->param[1]); mbp->param[1] = 0;
   3281 	case 1: ISP_WRITE(isp, INMAILBOX0, mbp->param[0]); mbp->param[0] = 0;
   3282 	}
   3283 
   3284 	/*
   3285 	 * Clear RISC int condition.
   3286 	 */
   3287 	ISP_WRITE(isp, HCCR, HCCR_CMD_CLEAR_RISC_INT);
   3288 
   3289 	/*
   3290 	 * Clear semaphore on mailbox registers so that the Qlogic
   3291 	 * may update outgoing registers.
   3292 	 */
   3293 	ISP_WRITE(isp, BIU_SEMA, 0);
   3294 
   3295 	/*
   3296 	 * Set Host Interrupt condition so that RISC will pick up mailbox regs.
   3297 	 */
   3298 	ISP_WRITE(isp, HCCR, HCCR_CMD_SET_HOST_INT);
   3299 
   3300 	/*
   3301 	 * Wait until HOST INT has gone away (meaning that the Qlogic
   3302 	 * has picked up the mailbox command. Wait a long time.
   3303 	 */
   3304 	loops = MBOX_DELAY_COUNT * 5;
   3305 	while ((ISP_READ(isp, HCCR) & HCCR_CMD_CLEAR_RISC_INT) != 0) {
   3306 		SYS_DELAY(100);
   3307 		if (--loops < 0) {
   3308 			PRINTF("%s: isp_mboxcmd timeout #2\n", isp->isp_name);
   3309 			return;
   3310 		}
   3311 	}
   3312 
   3313 	/*
   3314 	 * While the Semaphore registers isn't set, wait for the Qlogic
   3315 	 * to process the mailbox command. Again- wait a long time.
   3316 	 */
   3317 	loops = MBOX_DELAY_COUNT * 5;
   3318 	while ((ISP_READ(isp, BIU_SEMA) & 1) == 0) {
   3319 		SYS_DELAY(100);
   3320 		/*
   3321 		 * Wierd- I've seen the case where the semaphore register
   3322 		 * isn't getting set- sort of a violation of the protocol..
   3323 		 */
   3324 		if (ISP_READ(isp, OUTMAILBOX0) & 0x4000)
   3325 			break;
   3326 		if (--loops < 0) {
   3327 			PRINTF("%s: isp_mboxcmd timeout #3\n", isp->isp_name);
   3328 			return;
   3329 		}
   3330 	}
   3331 
   3332 	/*
   3333 	 * Make sure that the MBOX_BUSY has gone away
   3334 	 */
   3335 	loops = MBOX_DELAY_COUNT;
   3336 	for (;;) {
   3337 		u_int16_t mbox = ISP_READ(isp, OUTMAILBOX0);
   3338 		if (mbox == MBOX_BUSY) {
   3339 			if (--loops < 0) {
   3340 				PRINTF("%s: isp_mboxcmd timeout #4\n",
   3341 				    isp->isp_name);
   3342 				return;
   3343 			}
   3344 			SYS_DELAY(100);
   3345 			continue;
   3346 		}
   3347 		/*
   3348 		 * We have a pending MBOX async event.
   3349 		 */
   3350 		if (mbox & 0x8000) {
   3351 			int fph = isp_parse_async(isp, (int) mbox);
   3352 			ISP_WRITE(isp, BIU_SEMA, 0);
   3353 			ISP_WRITE(isp, HCCR, HCCR_CMD_CLEAR_RISC_INT);
   3354 			if (fph < 0) {
   3355 				return;
   3356 			} else if (fph > 0) {
   3357 				isp_fastpost_complete(isp, fph);
   3358 			}
   3359 			SYS_DELAY(100);
   3360 			continue;
   3361 		}
   3362 		break;
   3363 	}
   3364 
   3365 	/*
   3366 	 * Pick up output parameters. Special case some of the readbacks
   3367 	 * for the dual port SCSI cards.
   3368 	 */
   3369 	if (IS_DUALBUS(isp)) {
   3370 		switch (opcode) {
   3371 		case MBOX_GET_RETRY_COUNT:
   3372 		case MBOX_SET_RETRY_COUNT:
   3373 			mbp->param[7] = ISP_READ(isp, OUTMAILBOX7);
   3374 			mbp->param[6] = ISP_READ(isp, OUTMAILBOX6);
   3375 			break;
   3376 		case MBOX_GET_TAG_AGE_LIMIT:
   3377 		case MBOX_SET_TAG_AGE_LIMIT:
   3378 		case MBOX_GET_ACT_NEG_STATE:
   3379 		case MBOX_SET_ACT_NEG_STATE:
   3380 		case MBOX_SET_ASYNC_DATA_SETUP_TIME:
   3381 		case MBOX_GET_ASYNC_DATA_SETUP_TIME:
   3382 		case MBOX_GET_RESET_DELAY_PARAMS:
   3383 		case MBOX_SET_RESET_DELAY_PARAMS:
   3384 			mbp->param[2] = ISP_READ(isp, OUTMAILBOX2);
   3385 			break;
   3386 		}
   3387 	}
   3388 
   3389 	switch (outparam) {
   3390 	case 8: mbp->param[7] = ISP_READ(isp, OUTMAILBOX7);
   3391 	case 7: mbp->param[6] = ISP_READ(isp, OUTMAILBOX6);
   3392 	case 6: mbp->param[5] = ISP_READ(isp, OUTMAILBOX5);
   3393 	case 5: mbp->param[4] = ISP_READ(isp, OUTMAILBOX4);
   3394 	case 4: mbp->param[3] = ISP_READ(isp, OUTMAILBOX3);
   3395 	case 3: mbp->param[2] = ISP_READ(isp, OUTMAILBOX2);
   3396 	case 2: mbp->param[1] = ISP_READ(isp, OUTMAILBOX1);
   3397 	case 1: mbp->param[0] = ISP_READ(isp, OUTMAILBOX0);
   3398 	}
   3399 
   3400 	/*
   3401 	 * Clear RISC int.
   3402 	 */
   3403 	ISP_WRITE(isp, HCCR, HCCR_CMD_CLEAR_RISC_INT);
   3404 
   3405 	/*
   3406 	 * Release semaphore on mailbox registers
   3407 	 */
   3408 	ISP_WRITE(isp, BIU_SEMA, 0);
   3409 
   3410 	/*
   3411 	 * Just to be chatty here...
   3412 	 */
   3413 	switch (mbp->param[0]) {
   3414 	case MBOX_COMMAND_COMPLETE:
   3415 		break;
   3416 	case MBOX_INVALID_COMMAND:
   3417 		IDPRINTF(2, ("%s: mbox cmd %x failed with INVALID_COMMAND\n",
   3418 		    isp->isp_name, opcode));
   3419 		break;
   3420 	case MBOX_HOST_INTERFACE_ERROR:
   3421 		PRINTF("%s: mbox cmd %x failed with HOST_INTERFACE_ERROR\n",
   3422 		    isp->isp_name, opcode);
   3423 		break;
   3424 	case MBOX_TEST_FAILED:
   3425 		PRINTF("%s: mbox cmd %x failed with TEST_FAILED\n",
   3426 		    isp->isp_name, opcode);
   3427 		break;
   3428 	case MBOX_COMMAND_ERROR:
   3429 		if (opcode != MBOX_ABOUT_FIRMWARE)
   3430 		    PRINTF("%s: mbox cmd %x failed with COMMAND_ERROR\n",
   3431 			isp->isp_name, opcode);
   3432 		break;
   3433 	case MBOX_COMMAND_PARAM_ERROR:
   3434 		switch (opcode) {
   3435 		case MBOX_GET_PORT_DB:
   3436 		case MBOX_GET_PORT_NAME:
   3437 		case MBOX_GET_DEV_QUEUE_PARAMS:
   3438 			break;
   3439 		default:
   3440 			PRINTF("%s: mbox cmd %x failed with "
   3441 			    "COMMAND_PARAM_ERROR\n", isp->isp_name, opcode);
   3442 		}
   3443 		break;
   3444 
   3445 	/*
   3446 	 * Be silent about these...
   3447 	 */
   3448 	case ASYNC_PDB_CHANGED:
   3449 		((fcparam *) isp->isp_param)->isp_loopstate = LOOP_PDB_RCVD;
   3450 		break;
   3451 
   3452 	case ASYNC_LIP_OCCURRED:
   3453 		((fcparam *) isp->isp_param)->isp_lipseq = mbp->param[1];
   3454 		/* FALLTHROUGH */
   3455 	case ASYNC_LOOP_UP:
   3456 		((fcparam *) isp->isp_param)->isp_fwstate = FW_CONFIG_WAIT;
   3457 		((fcparam *) isp->isp_param)->isp_loopstate = LOOP_LIP_RCVD;
   3458 		break;
   3459 
   3460 	case ASYNC_LOOP_DOWN:
   3461 	case ASYNC_LOOP_RESET:
   3462 		((fcparam *) isp->isp_param)->isp_fwstate = FW_CONFIG_WAIT;
   3463 		((fcparam *) isp->isp_param)->isp_loopstate = LOOP_NIL;
   3464 		/* FALLTHROUGH */
   3465 	case ASYNC_CHANGE_NOTIFY:
   3466 		break;
   3467 
   3468 	default:
   3469 		/*
   3470 		 * The expected return of EXEC_FIRMWARE is zero.
   3471 		 */
   3472 		if ((opcode == MBOX_EXEC_FIRMWARE && mbp->param[0] != 0) ||
   3473 		    (opcode != MBOX_EXEC_FIRMWARE)) {
   3474 			PRINTF("%s: mbox cmd %x failed with error %x\n",
   3475 				isp->isp_name, opcode, mbp->param[0]);
   3476 		}
   3477 		break;
   3478 	}
   3479 }
   3480 
   3481 void
   3482 isp_lostcmd(isp, xs)
   3483 	struct ispsoftc *isp;
   3484 	ISP_SCSI_XFER_T *xs;
   3485 {
   3486 	mbreg_t mbs;
   3487 
   3488 	mbs.param[0] = MBOX_GET_FIRMWARE_STATUS;
   3489 	isp_mboxcmd(isp, &mbs);
   3490 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
   3491 		isp_dumpregs(isp, "couldn't GET FIRMWARE STATUS");
   3492 		return;
   3493 	}
   3494 	if (mbs.param[1]) {
   3495 		PRINTF("%s: %d commands on completion queue\n",
   3496 		    isp->isp_name, mbs.param[1]);
   3497 	}
   3498 	if (XS_NULL(xs))
   3499 		return;
   3500 
   3501 	mbs.param[0] = MBOX_GET_DEV_QUEUE_STATUS;
   3502 	mbs.param[1] = (XS_TGT(xs) << 8) | XS_LUN(xs); /* XXX: WHICH BUS? */
   3503 	isp_mboxcmd(isp, &mbs);
   3504 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
   3505 		isp_dumpregs(isp, "couldn't GET DEVICE QUEUE STATUS");
   3506 		return;
   3507 	}
   3508 	PRINTF("%s: lost command for target %d lun %d, %d active of %d, "
   3509 		"Queue State: %x\n", isp->isp_name, XS_TGT(xs),
   3510 		XS_LUN(xs), mbs.param[2], mbs.param[3], mbs.param[1]);
   3511 
   3512 	isp_dumpregs(isp, "lost command");
   3513 	/*
   3514 	 * XXX: Need to try and do something to recover.
   3515 	 */
   3516 }
   3517 
   3518 static void
   3519 isp_dumpregs(isp, msg)
   3520 	struct ispsoftc *isp;
   3521 	const char *msg;
   3522 {
   3523 	PRINTF("%s: %s\n", isp->isp_name, msg);
   3524 	if (IS_SCSI(isp))
   3525 		PRINTF("    biu_conf1=%x", ISP_READ(isp, BIU_CONF1));
   3526 	else
   3527 		PRINTF("    biu_csr=%x", ISP_READ(isp, BIU2100_CSR));
   3528 	PRINTF(" biu_icr=%x biu_isr=%x biu_sema=%x ", ISP_READ(isp, BIU_ICR),
   3529 	    ISP_READ(isp, BIU_ISR), ISP_READ(isp, BIU_SEMA));
   3530 	PRINTF("risc_hccr=%x\n", ISP_READ(isp, HCCR));
   3531 
   3532 
   3533 	if (IS_SCSI(isp)) {
   3534 		ISP_WRITE(isp, HCCR, HCCR_CMD_PAUSE);
   3535 		PRINTF("    cdma_conf=%x cdma_sts=%x cdma_fifostat=%x\n",
   3536 			ISP_READ(isp, CDMA_CONF), ISP_READ(isp, CDMA_STATUS),
   3537 			ISP_READ(isp, CDMA_FIFO_STS));
   3538 		PRINTF("    ddma_conf=%x ddma_sts=%x ddma_fifostat=%x\n",
   3539 			ISP_READ(isp, DDMA_CONF), ISP_READ(isp, DDMA_STATUS),
   3540 			ISP_READ(isp, DDMA_FIFO_STS));
   3541 		PRINTF("    sxp_int=%x sxp_gross=%x sxp(scsi_ctrl)=%x\n",
   3542 			ISP_READ(isp, SXP_INTERRUPT),
   3543 			ISP_READ(isp, SXP_GROSS_ERR),
   3544 			ISP_READ(isp, SXP_PINS_CTRL));
   3545 		ISP_WRITE(isp, HCCR, HCCR_CMD_RELEASE);
   3546 	}
   3547 	PRINTF("    mbox regs: %x %x %x %x %x\n",
   3548 	    ISP_READ(isp, OUTMAILBOX0), ISP_READ(isp, OUTMAILBOX1),
   3549 	    ISP_READ(isp, OUTMAILBOX2), ISP_READ(isp, OUTMAILBOX3),
   3550 	    ISP_READ(isp, OUTMAILBOX4));
   3551 	ISP_DUMPREGS(isp);
   3552 }
   3553 
   3554 static void
   3555 isp_fw_state(isp)
   3556 	struct ispsoftc *isp;
   3557 {
   3558 	mbreg_t mbs;
   3559 	if (IS_FC(isp)) {
   3560 		int once = 0;
   3561 		fcparam *fcp = isp->isp_param;
   3562 again:
   3563 		mbs.param[0] = MBOX_GET_FW_STATE;
   3564 		isp_mboxcmd(isp, &mbs);
   3565 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
   3566 			IDPRINTF(1, ("%s: isp_fw_state 0x%x\n", isp->isp_name,
   3567 			    mbs.param[0]));
   3568 			switch (mbs.param[0]) {
   3569 			case ASYNC_PDB_CHANGED:
   3570 				if (once++ < 10) {
   3571 					goto again;
   3572 				}
   3573 				fcp->isp_fwstate = FW_CONFIG_WAIT;
   3574 				fcp->isp_loopstate = LOOP_PDB_RCVD;
   3575 				goto again;
   3576 			case ASYNC_LIP_OCCURRED:
   3577 				fcp->isp_lipseq = mbs.param[1];
   3578 				/* FALLTHROUGH */
   3579 			case ASYNC_LOOP_UP:
   3580 				fcp->isp_fwstate = FW_CONFIG_WAIT;
   3581 				fcp->isp_loopstate = LOOP_LIP_RCVD;
   3582 				if (once++ < 10) {
   3583 					goto again;
   3584 				}
   3585 				break;
   3586 			case ASYNC_LOOP_RESET:
   3587 			case ASYNC_LOOP_DOWN:
   3588 				fcp->isp_fwstate = FW_CONFIG_WAIT;
   3589 				fcp->isp_loopstate = LOOP_NIL;
   3590 				/* FALLTHROUGH */
   3591 			case ASYNC_CHANGE_NOTIFY:
   3592 				if (once++ < 10) {
   3593 					goto again;
   3594 				}
   3595 				break;
   3596 			}
   3597 			PRINTF("%s: GET FIRMWARE STATE failed (0x%x)\n",
   3598 			    isp->isp_name, mbs.param[0]);
   3599 			return;
   3600 		}
   3601 		fcp->isp_fwstate = mbs.param[1];
   3602 	}
   3603 }
   3604 
   3605 static void
   3606 isp_update(isp)
   3607 	struct ispsoftc *isp;
   3608 {
   3609 	int bus;
   3610 
   3611 	for (bus = 0; isp->isp_update != 0; bus++) {
   3612 		if (isp->isp_update & (1 << bus)) {
   3613 			isp_update_bus(isp, bus);
   3614 			isp->isp_update ^= (1 << bus);
   3615 		}
   3616 	}
   3617 }
   3618 
   3619 static void
   3620 isp_update_bus(isp, bus)
   3621 	struct ispsoftc *isp;
   3622 	int bus;
   3623 {
   3624 	int tgt;
   3625 	mbreg_t mbs;
   3626 	sdparam *sdp;
   3627 
   3628 	if (IS_FC(isp)) {
   3629 		return;
   3630 	}
   3631 
   3632 	sdp = isp->isp_param;
   3633 	sdp += bus;
   3634 
   3635 	for (tgt = 0; tgt < MAX_TARGETS; tgt++) {
   3636 		u_int16_t flags, period, offset;
   3637 		int get;
   3638 
   3639 		if (sdp->isp_devparam[tgt].dev_enable == 0) {
   3640 			IDPRINTF(1, ("%s: skipping target %d bus %d update\n",
   3641 			    isp->isp_name, tgt, bus));
   3642 			continue;
   3643 		}
   3644 
   3645 		/*
   3646 		 * If the goal is to update the status of the device,
   3647 		 * take what's in dev_flags and try and set the device
   3648 		 * toward that. Otherwise, if we're just refreshing the
   3649 		 * current device state, get the current parameters.
   3650 		 */
   3651 		if (sdp->isp_devparam[tgt].dev_update) {
   3652 			mbs.param[0] = MBOX_SET_TARGET_PARAMS;
   3653 			mbs.param[2] = sdp->isp_devparam[tgt].dev_flags;
   3654 			/*
   3655 			 * Insist that PARITY must be enabled if SYNC
   3656 			 * is enabled.
   3657 			 */
   3658 			if (mbs.param[2] & DPARM_SYNC) {
   3659 				mbs.param[2] |= DPARM_PARITY;
   3660 			}
   3661 			mbs.param[3] =
   3662 				(sdp->isp_devparam[tgt].sync_offset << 8) |
   3663 				(sdp->isp_devparam[tgt].sync_period);
   3664 			sdp->isp_devparam[tgt].dev_update = 0;
   3665 			/*
   3666 			 * A command completion later that has
   3667 			 * RQSTF_NEGOTIATION set will cause
   3668 			 * the dev_refresh/announce cycle.
   3669 			 *
   3670 			 * Note: It is really important to update our current
   3671 			 * flags with at least the state of TAG capabilities-
   3672 			 * otherwise we might try and send a tagged command
   3673 			 * when we have it all turned off. So change it here
   3674 			 * to say that current already matches goal.
   3675 			 */
   3676 			sdp->isp_devparam[tgt].cur_dflags &= ~DPARM_TQING;
   3677 			sdp->isp_devparam[tgt].cur_dflags |=
   3678 			    (sdp->isp_devparam[tgt].dev_flags & DPARM_TQING);
   3679 			sdp->isp_devparam[tgt].dev_refresh = 1;
   3680 			IDPRINTF(3, ("%s: bus %d set tgt %d flags 0x%x off 0x%x"
   3681 			    " period 0x%x\n", isp->isp_name, bus, tgt,
   3682 			    mbs.param[2], mbs.param[3] >> 8,
   3683 			    mbs.param[3] & 0xff));
   3684 			get = 0;
   3685 		} else if (sdp->isp_devparam[tgt].dev_refresh) {
   3686 			mbs.param[0] = MBOX_GET_TARGET_PARAMS;
   3687 			sdp->isp_devparam[tgt].dev_refresh = 0;
   3688 			get = 1;
   3689 		} else {
   3690 			continue;
   3691 		}
   3692 		mbs.param[1] = (bus << 15) | (tgt << 8) ;
   3693 		isp_mboxcmd(isp, &mbs);
   3694 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
   3695 			PRINTF("%s: failed to %cet SCSI parameters for "
   3696 			    "target %d\n", isp->isp_name, (get)? 'g' : 's',
   3697 			    tgt);
   3698 			continue;
   3699 		}
   3700 		if (get == 0) {
   3701 			isp->isp_sendmarker |= (1 << bus);
   3702 			continue;
   3703 		}
   3704 		flags = mbs.param[2];
   3705 		period = mbs.param[3] & 0xff;
   3706 		offset = mbs.param[3] >> 8;
   3707 		sdp->isp_devparam[tgt].cur_dflags = flags;
   3708 		sdp->isp_devparam[tgt].cur_period = period;
   3709 		sdp->isp_devparam[tgt].cur_offset = offset;
   3710 		get = (bus << 16) | tgt;
   3711 		(void) isp_async(isp, ISPASYNC_NEW_TGT_PARAMS, &get);
   3712 	}
   3713 }
   3714 
   3715 static void
   3716 isp_setdfltparm(isp, channel)
   3717 	struct ispsoftc *isp;
   3718 	int channel;
   3719 {
   3720 	int tgt;
   3721 	mbreg_t mbs;
   3722 	sdparam *sdp, *sdp_chan0, *sdp_chan1;
   3723 
   3724 	if (IS_FC(isp)) {
   3725 		fcparam *fcp = (fcparam *) isp->isp_param;
   3726 		fcp += channel;
   3727 		if (fcp->isp_gotdparms) {
   3728 			return;
   3729 		}
   3730 		fcp->isp_gotdparms = 1;
   3731 		fcp->isp_maxfrmlen = ICB_DFLT_FRMLEN;
   3732 		fcp->isp_maxalloc = ICB_DFLT_ALLOC;
   3733 		fcp->isp_execthrottle = ICB_DFLT_THROTTLE;
   3734 		fcp->isp_retry_delay = ICB_DFLT_RDELAY;
   3735 		fcp->isp_retry_count = ICB_DFLT_RCOUNT;
   3736 		/* Platform specific.... */
   3737 		fcp->isp_loopid = DEFAULT_LOOPID(isp);
   3738 		fcp->isp_nodewwn = DEFAULT_WWN(isp);
   3739 		fcp->isp_portwwn = 0;
   3740 		/*
   3741 		 * Now try and read NVRAM
   3742 		 */
   3743 		if ((isp->isp_confopts & (ISP_CFG_NONVRAM|ISP_CFG_OWNWWN)) ||
   3744 		    (isp_read_nvram(isp))) {
   3745 			PRINTF("%s: using Node WWN 0x%08x%08x\n",
   3746 			    isp->isp_name, (u_int32_t)(fcp->isp_nodewwn >> 32),
   3747 			    (u_int32_t)(fcp->isp_nodewwn & 0xffffffff));
   3748 		}
   3749 		return;
   3750 	}
   3751 
   3752 	sdp_chan0 = (sdparam *) isp->isp_param;
   3753 	sdp_chan1 = sdp_chan0 + 1;
   3754 	sdp = sdp_chan0 + channel;
   3755 
   3756 	/*
   3757 	 * Been there, done that, got the T-shirt...
   3758 	 */
   3759 	if (sdp->isp_gotdparms) {
   3760 		return;
   3761 	}
   3762 	sdp->isp_gotdparms = 1;
   3763 
   3764 	/*
   3765 	 * If we've not been told to avoid reading NVRAM, try and read it.
   3766 	 * If we're successful reading it, we can return since NVRAM will
   3767 	 * tell us the right thing to do. Otherwise, establish some reasonable
   3768 	 * defaults.
   3769 	 */
   3770 	if ((isp->isp_confopts & ISP_CFG_NONVRAM) == 0) {
   3771 		if (isp_read_nvram(isp) == 0) {
   3772 			return;
   3773 		}
   3774 	}
   3775 
   3776 	/*
   3777 	 * Now try and see whether we have specific values for them.
   3778 	 */
   3779 	mbs.param[0] = MBOX_GET_ACT_NEG_STATE;
   3780 	isp_mboxcmd(isp, &mbs);
   3781 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
   3782 		IDPRINTF(2, ("could not GET ACT NEG STATE\n"));
   3783 		sdp_chan0->isp_req_ack_active_neg = 1;
   3784 		sdp_chan0->isp_data_line_active_neg = 1;
   3785 		if (IS_DUALBUS(isp)) {
   3786 			sdp_chan1->isp_req_ack_active_neg = 1;
   3787 			sdp_chan1->isp_data_line_active_neg = 1;
   3788 		}
   3789 	} else {
   3790 		sdp_chan0->isp_req_ack_active_neg = (mbs.param[1] >> 4) & 0x1;
   3791 		sdp_chan0->isp_data_line_active_neg = (mbs.param[1] >> 5) & 0x1;
   3792 		if (IS_DUALBUS(isp)) {
   3793 			sdp_chan1->isp_req_ack_active_neg =
   3794 			    (mbs.param[2] >> 4) & 0x1;
   3795 			sdp_chan1->isp_data_line_active_neg =
   3796 			    (mbs.param[2] >> 5) & 0x1;
   3797 		}
   3798 	}
   3799 
   3800 	/*
   3801 	 * The trick here is to establish a default for the default (honk!)
   3802 	 * state (dev_flags). Then try and get the current status from
   3803 	 * the card to fill in the current state. We don't, in fact, set
   3804 	 * the default to the SAFE default state- that's not the goal state.
   3805 	 */
   3806 	for (tgt = 0; tgt < MAX_TARGETS; tgt++) {
   3807 		sdp->isp_devparam[tgt].cur_offset = 0;
   3808 		sdp->isp_devparam[tgt].cur_period = 0;
   3809 		sdp->isp_devparam[tgt].dev_flags = DPARM_DEFAULT;
   3810 		sdp->isp_devparam[tgt].cur_dflags = 0;
   3811 		if (isp->isp_type < ISP_HA_SCSI_1040 ||
   3812 		    (isp->isp_clock && isp->isp_clock < 60)) {
   3813 			sdp->isp_devparam[tgt].sync_offset =
   3814 			    ISP_10M_SYNCPARMS >> 8;
   3815 			sdp->isp_devparam[tgt].sync_period =
   3816 			    ISP_10M_SYNCPARMS & 0xff;
   3817 		} else if (IS_ULTRA2(isp)) {
   3818 			sdp->isp_devparam[tgt].sync_offset =
   3819 			    ISP_40M_SYNCPARMS >> 8;
   3820 			sdp->isp_devparam[tgt].sync_period =
   3821 			    ISP_40M_SYNCPARMS & 0xff;
   3822 		} else {
   3823 			sdp->isp_devparam[tgt].sync_offset =
   3824 			    ISP_20M_SYNCPARMS >> 8;
   3825 			sdp->isp_devparam[tgt].sync_period =
   3826 			    ISP_20M_SYNCPARMS & 0xff;
   3827 		}
   3828 
   3829 		/*
   3830 		 * Don't get current target parameters if we've been
   3831 		 * told not to use NVRAM- it's really the same thing.
   3832 		 */
   3833 		if (isp->isp_confopts & ISP_CFG_NONVRAM) {
   3834 			continue;
   3835 		}
   3836 
   3837 		mbs.param[0] = MBOX_GET_TARGET_PARAMS;
   3838 		mbs.param[1] = tgt << 8;
   3839 		isp_mboxcmd(isp, &mbs);
   3840 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
   3841 			continue;
   3842 		}
   3843 		sdp->isp_devparam[tgt].cur_dflags = mbs.param[2];
   3844 		sdp->isp_devparam[tgt].dev_flags = mbs.param[2];
   3845 		sdp->isp_devparam[tgt].cur_period = mbs.param[3] & 0xff;
   3846 		sdp->isp_devparam[tgt].cur_offset = mbs.param[3] >> 8;
   3847 
   3848 		/*
   3849 		 * The maximum period we can really see
   3850 		 * here is 100 (decimal), or 400 ns.
   3851 		 * For some unknown reason we sometimes
   3852 		 * get back wildass numbers from the
   3853 		 * boot device's parameters (alpha only).
   3854 		 */
   3855 		if ((mbs.param[3] & 0xff) <= 0x64) {
   3856 			sdp->isp_devparam[tgt].sync_period =
   3857 			    mbs.param[3] & 0xff;
   3858 			sdp->isp_devparam[tgt].sync_offset =
   3859 			    mbs.param[3] >> 8;
   3860 		}
   3861 
   3862 		/*
   3863 		 * It is not safe to run Ultra Mode with a clock < 60.
   3864 		 */
   3865 		if (((isp->isp_clock && isp->isp_clock < 60) ||
   3866 		    (isp->isp_type < ISP_HA_SCSI_1020A)) &&
   3867 		    (sdp->isp_devparam[tgt].sync_period <=
   3868 		    (ISP_20M_SYNCPARMS & 0xff))) {
   3869 			sdp->isp_devparam[tgt].sync_offset =
   3870 			    ISP_10M_SYNCPARMS >> 8;
   3871 			sdp->isp_devparam[tgt].sync_period =
   3872 			    ISP_10M_SYNCPARMS & 0xff;
   3873 		}
   3874 	}
   3875 
   3876 	/*
   3877 	 * Establish default some more default parameters.
   3878 	 */
   3879 	sdp->isp_cmd_dma_burst_enable = 1;
   3880 	sdp->isp_data_dma_burst_enabl = 1;
   3881 	sdp->isp_fifo_threshold = 0;
   3882 	sdp->isp_initiator_id = 7;
   3883 	/* XXXX This is probably based upon clock XXXX */
   3884 	if (isp->isp_type >= ISP_HA_SCSI_1040) {
   3885 		sdp->isp_async_data_setup = 9;
   3886 	} else {
   3887 		sdp->isp_async_data_setup = 6;
   3888 	}
   3889 	sdp->isp_selection_timeout = 250;
   3890 	sdp->isp_max_queue_depth = MAXISPREQUEST;
   3891 	sdp->isp_tag_aging = 8;
   3892 	sdp->isp_bus_reset_delay = 3;
   3893 	sdp->isp_retry_count = 2;
   3894 	sdp->isp_retry_delay = 2;
   3895 
   3896 	for (tgt = 0; tgt < MAX_TARGETS; tgt++) {
   3897 		sdp->isp_devparam[tgt].exc_throttle = 16;
   3898 		sdp->isp_devparam[tgt].dev_enable = 1;
   3899 	}
   3900 }
   3901 
   3902 /*
   3903  * Re-initialize the ISP and complete all orphaned commands
   3904  * with a 'botched' notice. The reset/init routines should
   3905  * not disturb an already active list of commands.
   3906  *
   3907  * Locks held prior to coming here.
   3908  */
   3909 
   3910 void
   3911 isp_restart(isp)
   3912 	struct ispsoftc *isp;
   3913 {
   3914 	ISP_SCSI_XFER_T *xs;
   3915 	u_int32_t handle;
   3916 
   3917 #if	0
   3918 	isp->isp_gotdparms = 0;
   3919 #endif
   3920 	isp_reset(isp);
   3921 	if (isp->isp_state == ISP_RESETSTATE) {
   3922 		isp_init(isp);
   3923 		if (isp->isp_state == ISP_INITSTATE) {
   3924 			isp->isp_state = ISP_RUNSTATE;
   3925 		}
   3926 	}
   3927 	if (isp->isp_state != ISP_RUNSTATE) {
   3928 		PRINTF("%s: isp_restart cannot restart ISP\n", isp->isp_name);
   3929 	}
   3930 	isp->isp_nactive = 0;
   3931 
   3932 	for (handle = 1; handle <= (int) isp->isp_maxcmds; handle++) {
   3933 		xs = isp_find_xs(isp, handle);
   3934 		if (xs == NULL) {
   3935 			continue;
   3936 		}
   3937 		isp_destroy_handle(isp, handle);
   3938 		if (XS_XFRLEN(xs)) {
   3939 			ISP_DMAFREE(isp, xs, handle);
   3940 			XS_RESID(xs) = XS_XFRLEN(xs);
   3941 		} else {
   3942 			XS_RESID(xs) = 0;
   3943 		}
   3944 		XS_SETERR(xs, HBA_BUSRESET);
   3945 		XS_CMD_DONE(xs);
   3946 	}
   3947 }
   3948 
   3949 /*
   3950  * NVRAM Routines
   3951  */
   3952 
   3953 static int
   3954 isp_read_nvram(isp)
   3955 	struct ispsoftc *isp;
   3956 {
   3957 	static char *tru = "true";
   3958 	static char *not = "false";
   3959 	int i, amt;
   3960 	u_int8_t csum, minversion;
   3961 	union {
   3962 		u_int8_t _x[ISP2100_NVRAM_SIZE];
   3963 		u_int16_t _s[ISP2100_NVRAM_SIZE>>1];
   3964 	} _n;
   3965 #define	nvram_data	_n._x
   3966 #define	nvram_words	_n._s
   3967 
   3968 	if (IS_FC(isp)) {
   3969 		amt = ISP2100_NVRAM_SIZE;
   3970 		minversion = 1;
   3971 	} else if (IS_ULTRA2(isp)) {
   3972 		amt = ISP1080_NVRAM_SIZE;
   3973 		minversion = 0;
   3974 	} else {
   3975 		amt = ISP_NVRAM_SIZE;
   3976 		minversion = 2;
   3977 	}
   3978 
   3979 	/*
   3980 	 * Just read the first two words first to see if we have a valid
   3981 	 * NVRAM to continue reading the rest with.
   3982 	 */
   3983 	for (i = 0; i < 2; i++) {
   3984 		isp_rdnvram_word(isp, i, &nvram_words[i]);
   3985 	}
   3986 	if (nvram_data[0] != 'I' || nvram_data[1] != 'S' ||
   3987 	    nvram_data[2] != 'P') {
   3988 		if (isp->isp_bustype != ISP_BT_SBUS) {
   3989 			PRINTF("%s: invalid NVRAM header (%x,%x,%x,%x)\n",
   3990 			    isp->isp_name, nvram_data[0], nvram_data[1],
   3991 			    nvram_data[2], nvram_data[3]);
   3992 		}
   3993 		return (-1);
   3994 	}
   3995 	for (i = 2; i < amt>>1; i++) {
   3996 		isp_rdnvram_word(isp, i, &nvram_words[i]);
   3997 	}
   3998 	for (csum = 0, i = 0; i < amt; i++) {
   3999 		csum += nvram_data[i];
   4000 	}
   4001 	if (csum != 0) {
   4002 		PRINTF("%s: invalid NVRAM checksum\n", isp->isp_name);
   4003 		return (-1);
   4004 	}
   4005 	if (ISP_NVRAM_VERSION(nvram_data) < minversion) {
   4006 		PRINTF("%s: version %d NVRAM not understood\n", isp->isp_name,
   4007 		    ISP_NVRAM_VERSION(nvram_data));
   4008 		return (-1);
   4009 	}
   4010 
   4011 	if (IS_ULTRA2(isp)) {
   4012 		int bus;
   4013 		sdparam *sdp = (sdparam *) isp->isp_param;
   4014 		for (bus = 0; bus < (IS_DUALBUS(isp)? 2 : 1); bus++, sdp++) {
   4015 			sdp->isp_fifo_threshold =
   4016 			    ISP1080_NVRAM_FIFO_THRESHOLD(nvram_data);
   4017 
   4018 			sdp->isp_initiator_id =
   4019 			    ISP1080_NVRAM_INITIATOR_ID(nvram_data, bus);
   4020 
   4021 			sdp->isp_bus_reset_delay =
   4022 			    ISP1080_NVRAM_BUS_RESET_DELAY(nvram_data, bus);
   4023 
   4024 			sdp->isp_retry_count =
   4025 			    ISP1080_NVRAM_BUS_RETRY_COUNT(nvram_data, bus);
   4026 
   4027 			sdp->isp_retry_delay =
   4028 			    ISP1080_NVRAM_BUS_RETRY_DELAY(nvram_data, bus);
   4029 
   4030 			sdp->isp_async_data_setup =
   4031 			    ISP1080_NVRAM_ASYNC_DATA_SETUP_TIME(nvram_data,
   4032 			    bus);
   4033 
   4034 			sdp->isp_req_ack_active_neg =
   4035 			    ISP1080_NVRAM_REQ_ACK_ACTIVE_NEGATION(nvram_data,
   4036 			    bus);
   4037 
   4038 			sdp->isp_data_line_active_neg =
   4039 			    ISP1080_NVRAM_DATA_LINE_ACTIVE_NEGATION(nvram_data,
   4040 			    bus);
   4041 
   4042 			sdp->isp_data_dma_burst_enabl =
   4043 			    ISP1080_NVRAM_BURST_ENABLE(nvram_data);
   4044 
   4045 			sdp->isp_cmd_dma_burst_enable =
   4046 			    ISP1080_NVRAM_BURST_ENABLE(nvram_data);
   4047 
   4048 			sdp->isp_selection_timeout =
   4049 			    ISP1080_NVRAM_SELECTION_TIMEOUT(nvram_data, bus);
   4050 
   4051 			sdp->isp_max_queue_depth =
   4052 			     ISP1080_NVRAM_MAX_QUEUE_DEPTH(nvram_data, bus);
   4053 
   4054 			if (isp->isp_dblev >= 3) {
   4055 				PRINTF("%s: ISP1080 bus %d NVRAM values:\n",
   4056 				    isp->isp_name, bus);
   4057 				PRINTF("               Initiator ID = %d\n",
   4058 				    sdp->isp_initiator_id);
   4059 				PRINTF("             Fifo Threshold = 0x%x\n",
   4060 				    sdp->isp_fifo_threshold);
   4061 				PRINTF("            Bus Reset Delay = %d\n",
   4062 				    sdp->isp_bus_reset_delay);
   4063 				PRINTF("                Retry Count = %d\n",
   4064 				    sdp->isp_retry_count);
   4065 				PRINTF("                Retry Delay = %d\n",
   4066 				    sdp->isp_retry_delay);
   4067 				PRINTF("              Tag Age Limit = %d\n",
   4068 				    sdp->isp_tag_aging);
   4069 				PRINTF("          Selection Timeout = %d\n",
   4070 				    sdp->isp_selection_timeout);
   4071 				PRINTF("            Max Queue Depth = %d\n",
   4072 				    sdp->isp_max_queue_depth);
   4073 				PRINTF("           Async Data Setup = 0x%x\n",
   4074 				    sdp->isp_async_data_setup);
   4075 				PRINTF("    REQ/ACK Active Negation = %s\n",
   4076 				    sdp->isp_req_ack_active_neg? tru : not);
   4077 				PRINTF("  Data Line Active Negation = %s\n",
   4078 				    sdp->isp_data_line_active_neg? tru : not);
   4079 				PRINTF("       Cmd DMA Burst Enable = %s\n",
   4080 				    sdp->isp_cmd_dma_burst_enable? tru : not);
   4081 			}
   4082 			for (i = 0; i < MAX_TARGETS; i++) {
   4083 				sdp->isp_devparam[i].dev_enable =
   4084 				    ISP1080_NVRAM_TGT_DEVICE_ENABLE(nvram_data, i, bus);
   4085 				sdp->isp_devparam[i].exc_throttle =
   4086 					ISP1080_NVRAM_TGT_EXEC_THROTTLE(nvram_data, i, bus);
   4087 				sdp->isp_devparam[i].sync_offset =
   4088 					ISP1080_NVRAM_TGT_SYNC_OFFSET(nvram_data, i, bus);
   4089 				sdp->isp_devparam[i].sync_period =
   4090 					ISP1080_NVRAM_TGT_SYNC_PERIOD(nvram_data, i, bus);
   4091 				sdp->isp_devparam[i].dev_flags = 0;
   4092 				if (ISP1080_NVRAM_TGT_RENEG(nvram_data, i, bus))
   4093 					sdp->isp_devparam[i].dev_flags |= DPARM_RENEG;
   4094 				if (ISP1080_NVRAM_TGT_QFRZ(nvram_data, i, bus)) {
   4095 					PRINTF("%s: not supporting QFRZ option "
   4096 					    "for target %d bus %d\n",
   4097 					    isp->isp_name, i, bus);
   4098 				}
   4099 				sdp->isp_devparam[i].dev_flags |= DPARM_ARQ;
   4100 				if (ISP1080_NVRAM_TGT_ARQ(nvram_data, i, bus) == 0) {
   4101 					PRINTF("%s: not disabling ARQ option "
   4102 					    "for target %d bus %d\n",
   4103 					    isp->isp_name, i, bus);
   4104 				}
   4105 				if (ISP1080_NVRAM_TGT_TQING(nvram_data, i, bus))
   4106 					sdp->isp_devparam[i].dev_flags |= DPARM_TQING;
   4107 				if (ISP1080_NVRAM_TGT_SYNC(nvram_data, i, bus))
   4108 					sdp->isp_devparam[i].dev_flags |= DPARM_SYNC;
   4109 				if (ISP1080_NVRAM_TGT_WIDE(nvram_data, i, bus))
   4110 					sdp->isp_devparam[i].dev_flags |= DPARM_WIDE;
   4111 				if (ISP1080_NVRAM_TGT_PARITY(nvram_data, i, bus))
   4112 					sdp->isp_devparam[i].dev_flags |= DPARM_PARITY;
   4113 				if (ISP1080_NVRAM_TGT_DISC(nvram_data, i, bus))
   4114 					sdp->isp_devparam[i].dev_flags |= DPARM_DISC;
   4115 				sdp->isp_devparam[i].cur_dflags = 0;
   4116 				if (isp->isp_dblev >= 3) {
   4117 					PRINTF("   Target %d: Ena %d Throttle "
   4118 					    "%d Offset %d Period %d Flags "
   4119 					    "0x%x\n", i,
   4120 					    sdp->isp_devparam[i].dev_enable,
   4121 					    sdp->isp_devparam[i].exc_throttle,
   4122 					    sdp->isp_devparam[i].sync_offset,
   4123 					    sdp->isp_devparam[i].sync_period,
   4124 					    sdp->isp_devparam[i].dev_flags);
   4125 				}
   4126 			}
   4127 		}
   4128 	} else if (IS_SCSI(isp)) {
   4129 		sdparam *sdp = (sdparam *) isp->isp_param;
   4130 
   4131 		sdp->isp_fifo_threshold =
   4132 			ISP_NVRAM_FIFO_THRESHOLD(nvram_data) |
   4133 			(ISP_NVRAM_FIFO_THRESHOLD_128(nvram_data) << 2);
   4134 
   4135 		sdp->isp_initiator_id =
   4136 			ISP_NVRAM_INITIATOR_ID(nvram_data);
   4137 
   4138 		sdp->isp_bus_reset_delay =
   4139 			ISP_NVRAM_BUS_RESET_DELAY(nvram_data);
   4140 
   4141 		sdp->isp_retry_count =
   4142 			ISP_NVRAM_BUS_RETRY_COUNT(nvram_data);
   4143 
   4144 		sdp->isp_retry_delay =
   4145 			ISP_NVRAM_BUS_RETRY_DELAY(nvram_data);
   4146 
   4147 		sdp->isp_async_data_setup =
   4148 			ISP_NVRAM_ASYNC_DATA_SETUP_TIME(nvram_data);
   4149 
   4150 		if (isp->isp_type >= ISP_HA_SCSI_1040) {
   4151 			if (sdp->isp_async_data_setup < 9) {
   4152 				sdp->isp_async_data_setup = 9;
   4153 			}
   4154 		} else {
   4155 			if (sdp->isp_async_data_setup != 6) {
   4156 				sdp->isp_async_data_setup = 6;
   4157 			}
   4158 		}
   4159 
   4160 		sdp->isp_req_ack_active_neg =
   4161 			ISP_NVRAM_REQ_ACK_ACTIVE_NEGATION(nvram_data);
   4162 
   4163 		sdp->isp_data_line_active_neg =
   4164 			ISP_NVRAM_DATA_LINE_ACTIVE_NEGATION(nvram_data);
   4165 
   4166 		sdp->isp_data_dma_burst_enabl =
   4167 			ISP_NVRAM_DATA_DMA_BURST_ENABLE(nvram_data);
   4168 
   4169 		sdp->isp_cmd_dma_burst_enable =
   4170 			ISP_NVRAM_CMD_DMA_BURST_ENABLE(nvram_data);
   4171 
   4172 		sdp->isp_tag_aging =
   4173 			ISP_NVRAM_TAG_AGE_LIMIT(nvram_data);
   4174 
   4175 		sdp->isp_selection_timeout =
   4176 			ISP_NVRAM_SELECTION_TIMEOUT(nvram_data);
   4177 
   4178 		sdp->isp_max_queue_depth =
   4179 			ISP_NVRAM_MAX_QUEUE_DEPTH(nvram_data);
   4180 
   4181 		isp->isp_fast_mttr = ISP_NVRAM_FAST_MTTR_ENABLE(nvram_data);
   4182 		if (isp->isp_dblev > 2) {
   4183 			PRINTF("%s: NVRAM values:\n", isp->isp_name);
   4184 			PRINTF("             Fifo Threshold = 0x%x\n",
   4185 			    sdp->isp_fifo_threshold);
   4186 			PRINTF("            Bus Reset Delay = %d\n",
   4187 			    sdp->isp_bus_reset_delay);
   4188 			PRINTF("                Retry Count = %d\n",
   4189 			    sdp->isp_retry_count);
   4190 			PRINTF("                Retry Delay = %d\n",
   4191 			    sdp->isp_retry_delay);
   4192 			PRINTF("              Tag Age Limit = %d\n",
   4193 			    sdp->isp_tag_aging);
   4194 			PRINTF("          Selection Timeout = %d\n",
   4195 			    sdp->isp_selection_timeout);
   4196 			PRINTF("            Max Queue Depth = %d\n",
   4197 			    sdp->isp_max_queue_depth);
   4198 			PRINTF("           Async Data Setup = 0x%x\n",
   4199 			    sdp->isp_async_data_setup);
   4200 			PRINTF("    REQ/ACK Active Negation = %s\n",
   4201 			    sdp->isp_req_ack_active_neg? tru : not);
   4202 			PRINTF("  Data Line Active Negation = %s\n",
   4203 			    sdp->isp_data_line_active_neg? tru : not);
   4204 			PRINTF("      Data DMA Burst Enable = %s\n",
   4205 			    sdp->isp_data_dma_burst_enabl? tru : not);
   4206 			PRINTF("       Cmd DMA Burst Enable = %s\n",
   4207 			    sdp->isp_cmd_dma_burst_enable? tru : not);
   4208 			PRINTF("                  Fast MTTR = %s\n",
   4209 			    isp->isp_fast_mttr? tru : not);
   4210 		}
   4211 		for (i = 0; i < MAX_TARGETS; i++) {
   4212 			sdp->isp_devparam[i].dev_enable =
   4213 				ISP_NVRAM_TGT_DEVICE_ENABLE(nvram_data, i);
   4214 			sdp->isp_devparam[i].exc_throttle =
   4215 				ISP_NVRAM_TGT_EXEC_THROTTLE(nvram_data, i);
   4216 			sdp->isp_devparam[i].sync_offset =
   4217 				ISP_NVRAM_TGT_SYNC_OFFSET(nvram_data, i);
   4218 			sdp->isp_devparam[i].sync_period =
   4219 				ISP_NVRAM_TGT_SYNC_PERIOD(nvram_data, i);
   4220 
   4221 			if (isp->isp_type < ISP_HA_SCSI_1040) {
   4222 				/*
   4223 				 * If we're not ultra, we can't possibly
   4224 				 * be a shorter period than this.
   4225 				 */
   4226 				if (sdp->isp_devparam[i].sync_period < 0x19) {
   4227 					sdp->isp_devparam[i].sync_period =
   4228 					    0x19;
   4229 				}
   4230 				if (sdp->isp_devparam[i].sync_offset > 0xc) {
   4231 					sdp->isp_devparam[i].sync_offset =
   4232 					    0x0c;
   4233 				}
   4234 			} else {
   4235 				if (sdp->isp_devparam[i].sync_offset > 0x8) {
   4236 					sdp->isp_devparam[i].sync_offset = 0x8;
   4237 				}
   4238 			}
   4239 			sdp->isp_devparam[i].dev_flags = 0;
   4240 			if (ISP_NVRAM_TGT_RENEG(nvram_data, i))
   4241 				sdp->isp_devparam[i].dev_flags |= DPARM_RENEG;
   4242 			if (ISP_NVRAM_TGT_QFRZ(nvram_data, i)) {
   4243 				PRINTF("%s: not supporting QFRZ option for "
   4244 				    "target %d\n", isp->isp_name, i);
   4245 			}
   4246 			sdp->isp_devparam[i].dev_flags |= DPARM_ARQ;
   4247 			if (ISP_NVRAM_TGT_ARQ(nvram_data, i) == 0) {
   4248 				PRINTF("%s: not disabling ARQ option for "
   4249 				    "target %d\n", isp->isp_name, i);
   4250 			}
   4251 			if (ISP_NVRAM_TGT_TQING(nvram_data, i))
   4252 				sdp->isp_devparam[i].dev_flags |= DPARM_TQING;
   4253 			if (ISP_NVRAM_TGT_SYNC(nvram_data, i))
   4254 				sdp->isp_devparam[i].dev_flags |= DPARM_SYNC;
   4255 			if (ISP_NVRAM_TGT_WIDE(nvram_data, i))
   4256 				sdp->isp_devparam[i].dev_flags |= DPARM_WIDE;
   4257 			if (ISP_NVRAM_TGT_PARITY(nvram_data, i))
   4258 				sdp->isp_devparam[i].dev_flags |= DPARM_PARITY;
   4259 			if (ISP_NVRAM_TGT_DISC(nvram_data, i))
   4260 				sdp->isp_devparam[i].dev_flags |= DPARM_DISC;
   4261 			sdp->isp_devparam[i].cur_dflags = 0; /* we don't know */
   4262 			if (isp->isp_dblev > 2) {
   4263 				PRINTF("   Target %d: Enabled %d Throttle %d "
   4264 				    "Offset %d Period %d Flags 0x%x\n", i,
   4265 				    sdp->isp_devparam[i].dev_enable,
   4266 				    sdp->isp_devparam[i].exc_throttle,
   4267 				    sdp->isp_devparam[i].sync_offset,
   4268 				    sdp->isp_devparam[i].sync_period,
   4269 				    sdp->isp_devparam[i].dev_flags);
   4270 			}
   4271 		}
   4272 	} else {
   4273 		fcparam *fcp = (fcparam *) isp->isp_param;
   4274 		union {
   4275 			struct {
   4276 #if	BYTE_ORDER == BIG_ENDIAN
   4277 				u_int32_t hi32;
   4278 				u_int32_t lo32;
   4279 #else
   4280 				u_int32_t lo32;
   4281 				u_int32_t hi32;
   4282 #endif
   4283 			} wd;
   4284 			u_int64_t full64;
   4285 		} wwnstore;
   4286 
   4287 		wwnstore.full64 = ISP2100_NVRAM_NODE_NAME(nvram_data);
   4288 		/*
   4289 		 * Broken PTI cards with nothing in the top nibble. Pah.
   4290 		 */
   4291 		if ((wwnstore.wd.hi32 >> 28) == 0) {
   4292 			wwnstore.wd.hi32 |= (2 << 28);
   4293 			CFGPRINTF("%s: (corrected) Adapter WWN 0x%08x%08x\n",
   4294 			    isp->isp_name, wwnstore.wd.hi32, wwnstore.wd.lo32);
   4295 		} else {
   4296 			CFGPRINTF("%s: Adapter WWN 0x%08x%08x\n", isp->isp_name,
   4297 			    wwnstore.wd.hi32, wwnstore.wd.lo32);
   4298 		}
   4299 		fcp->isp_nodewwn = wwnstore.full64;
   4300 
   4301 		/*
   4302 		 * If the Node WWN has 2 in the top nibble, we can
   4303 		 * authoritatively construct a Port WWN by adding
   4304 		 * our unit number (plus one to make it nonzero) and
   4305 		 * putting it into bits 59..56. If the top nibble isn't
   4306 		 * 2, then we just set them identically.
   4307 		 */
   4308 		if ((fcp->isp_nodewwn >> 60) == 2) {
   4309 			fcp->isp_portwwn = fcp->isp_nodewwn |
   4310 			    (((u_int64_t)(isp->isp_unit+1)) << 56);
   4311 		} else {
   4312 			fcp->isp_portwwn = fcp->isp_nodewwn;
   4313 		}
   4314 		wwnstore.full64 = ISP2100_NVRAM_BOOT_NODE_NAME(nvram_data);
   4315 		if (wwnstore.full64 != 0) {
   4316 			PRINTF("%s: BOOT DEVICE WWN 0x%08x%08x\n",
   4317 			    isp->isp_name, wwnstore.wd.hi32, wwnstore.wd.lo32);
   4318 		}
   4319 		fcp->isp_maxalloc =
   4320 			ISP2100_NVRAM_MAXIOCBALLOCATION(nvram_data);
   4321 		fcp->isp_maxfrmlen =
   4322 			ISP2100_NVRAM_MAXFRAMELENGTH(nvram_data);
   4323 		fcp->isp_retry_delay =
   4324 			ISP2100_NVRAM_RETRY_DELAY(nvram_data);
   4325 		fcp->isp_retry_count =
   4326 			ISP2100_NVRAM_RETRY_COUNT(nvram_data);
   4327 		fcp->isp_loopid =
   4328 			ISP2100_NVRAM_HARDLOOPID(nvram_data);
   4329 		fcp->isp_execthrottle =
   4330 			ISP2100_NVRAM_EXECUTION_THROTTLE(nvram_data);
   4331 		fcp->isp_fwoptions = ISP2100_NVRAM_OPTIONS(nvram_data);
   4332 		if (isp->isp_dblev > 2) {
   4333 			PRINTF("%s: NVRAM values:\n", isp->isp_name);
   4334 			PRINTF("  Max IOCB Allocation = %d\n",
   4335 			    fcp->isp_maxalloc);
   4336 			PRINTF("     Max Frame Length = %d\n",
   4337 			    fcp->isp_maxfrmlen);
   4338 			PRINTF("   Execution Throttle = %d\n",
   4339 			    fcp->isp_execthrottle);
   4340 			PRINTF("          Retry Count = %d\n",
   4341 			    fcp->isp_retry_count);
   4342 			PRINTF("          Retry Delay = %d\n",
   4343 			    fcp->isp_retry_delay);
   4344 			PRINTF("         Hard Loop ID = %d\n",
   4345 			    fcp->isp_loopid);
   4346 			PRINTF("              Options = 0x%x\n",
   4347 			    fcp->isp_fwoptions);
   4348 			PRINTF("          HBA Options = 0x%x\n",
   4349 			    ISP2100_NVRAM_HBA_OPTIONS(nvram_data));
   4350 		}
   4351 	}
   4352 	IDPRINTF(3, ("%s: NVRAM is valid\n", isp->isp_name));
   4353 	return (0);
   4354 }
   4355 
   4356 static void
   4357 isp_rdnvram_word(isp, wo, rp)
   4358 	struct ispsoftc *isp;
   4359 	int wo;
   4360 	u_int16_t *rp;
   4361 {
   4362 	int i, cbits;
   4363 	u_int16_t bit, rqst;
   4364 
   4365 	ISP_WRITE(isp, BIU_NVRAM, BIU_NVRAM_SELECT);
   4366 	SYS_DELAY(2);
   4367 	ISP_WRITE(isp, BIU_NVRAM, BIU_NVRAM_SELECT|BIU_NVRAM_CLOCK);
   4368 	SYS_DELAY(2);
   4369 
   4370 	if (IS_FC(isp)) {
   4371 		wo &= ((ISP2100_NVRAM_SIZE >> 1) - 1);
   4372 		rqst = (ISP_NVRAM_READ << 8) | wo;
   4373 		cbits = 10;
   4374 	} else if (IS_ULTRA2(isp)) {
   4375 		wo &= ((ISP1080_NVRAM_SIZE >> 1) - 1);
   4376 		rqst = (ISP_NVRAM_READ << 8) | wo;
   4377 		cbits = 10;
   4378 	} else {
   4379 		wo &= ((ISP_NVRAM_SIZE >> 1) - 1);
   4380 		rqst = (ISP_NVRAM_READ << 6) | wo;
   4381 		cbits = 8;
   4382 	}
   4383 
   4384 	/*
   4385 	 * Clock the word select request out...
   4386 	 */
   4387 	for (i = cbits; i >= 0; i--) {
   4388 		if ((rqst >> i) & 1) {
   4389 			bit = BIU_NVRAM_SELECT | BIU_NVRAM_DATAOUT;
   4390 		} else {
   4391 			bit = BIU_NVRAM_SELECT;
   4392 		}
   4393 		ISP_WRITE(isp, BIU_NVRAM, bit);
   4394 		SYS_DELAY(2);
   4395 		ISP_WRITE(isp, BIU_NVRAM, bit | BIU_NVRAM_CLOCK);
   4396 		SYS_DELAY(2);
   4397 		ISP_WRITE(isp, BIU_NVRAM, bit);
   4398 		SYS_DELAY(2);
   4399 	}
   4400 	/*
   4401 	 * Now read the result back in (bits come back in MSB format).
   4402 	 */
   4403 	*rp = 0;
   4404 	for (i = 0; i < 16; i++) {
   4405 		u_int16_t rv;
   4406 		*rp <<= 1;
   4407 		ISP_WRITE(isp, BIU_NVRAM, BIU_NVRAM_SELECT|BIU_NVRAM_CLOCK);
   4408 		SYS_DELAY(2);
   4409 		rv = ISP_READ(isp, BIU_NVRAM);
   4410 		if (rv & BIU_NVRAM_DATAIN) {
   4411 			*rp |= 1;
   4412 		}
   4413 		SYS_DELAY(2);
   4414 		ISP_WRITE(isp, BIU_NVRAM, BIU_NVRAM_SELECT);
   4415 		SYS_DELAY(2);
   4416 	}
   4417 	ISP_WRITE(isp, BIU_NVRAM, 0);
   4418 	SYS_DELAY(2);
   4419 #if	BYTE_ORDER == BIG_ENDIAN
   4420 	*rp = ((*rp >> 8) | ((*rp & 0xff) << 8));
   4421 #endif
   4422 }
   4423