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isp.c revision 1.47
      1 /* $NetBSD: isp.c,v 1.47 2000/01/06 23:02:51 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 	 * Ultra2 F/W always has had fast posting (and LVD transitions)
    795 	 *
    796 	 * Ultra and older (i.e., SBus) cards may not. Assume SBus cards
    797 	 * do not, and only guess that 4.55.0 <= x < 5.0.0 (initiator
    798 	 * only) and x >= 7.55 (initiator/target) has fast posting.
    799 	 */
    800 
    801 	mbs.param[0] = MBOX_SET_FW_FEATURES;
    802 	mbs.param[1] = 0;
    803 	if (IS_ULTRA2(isp))
    804 		mbs.param[1] |= FW_FEATURE_LVD_NOTIFY;
    805 #ifndef	ISP_NO_FASTPOST_SCSI
    806 	if ((ISP_FW_REVX(isp->isp_fwrev) >= ISP_FW_REV(4, 55, 0) &&
    807 	    (ISP_FW_REVX(isp->isp_fwrev) < ISP_FW_REV(5, 0, 0))) ||
    808 	    (ISP_FW_REVX(isp->isp_fwrev) >= ISP_FW_REV(7, 55, 0))) {
    809 		mbs.param[1] |= FW_FEATURE_FAST_POST;
    810 	}
    811 #endif
    812 	if (mbs.param[1] != 0) {
    813 		u_int16_t sfeat = mbs.param[1];
    814 		isp_mboxcmd(isp, &mbs);
    815 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    816 			PRINTF("%s: cannot enable FW features (0x%x)\n",
    817 			    isp->isp_name, sfeat);
    818 		} else {
    819 			CFGPRINTF("%s: enabled FW features (0x%x)\n",
    820 			    isp->isp_name, sfeat);
    821 		}
    822 	}
    823 
    824 	/*
    825 	 * Let the outer layers decide whether to issue a SCSI bus reset.
    826 	 */
    827 	isp->isp_state = ISP_INITSTATE;
    828 }
    829 
    830 static void
    831 isp_scsi_channel_init(isp, channel)
    832 	struct ispsoftc *isp;
    833 	int channel;
    834 {
    835 	sdparam *sdp;
    836 	mbreg_t mbs;
    837 	int tgt;
    838 
    839 	sdp = isp->isp_param;
    840 	sdp += channel;
    841 
    842 	/*
    843 	 * Set (possibly new) Initiator ID.
    844 	 */
    845 	mbs.param[0] = MBOX_SET_INIT_SCSI_ID;
    846 	mbs.param[1] = (channel << 7) | sdp->isp_initiator_id;
    847 	isp_mboxcmd(isp, &mbs);
    848 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    849 		PRINTF("%s: cannot set initiator id on bus %d to %d\n",
    850 		    isp->isp_name, channel, sdp->isp_initiator_id);
    851 		return;
    852 	}
    853 
    854 	/*
    855 	 * Set current per-target parameters to a safe minimum.
    856 	 */
    857 	for (tgt = 0; tgt < MAX_TARGETS; tgt++) {
    858 		int maxlun, lun;
    859 		u_int16_t sdf;
    860 
    861 		if (sdp->isp_devparam[tgt].dev_enable == 0) {
    862 			IDPRINTF(1, ("%s: skipping target %d bus %d settings\n",
    863 			    isp->isp_name, tgt, channel));
    864 			continue;
    865 		}
    866 
    867 		/*
    868 		 * If we're in LVD mode, then we pretty much should
    869 		 * only disable tagged queuing.
    870 		 */
    871 		if (IS_ULTRA2(isp) && sdp->isp_lvdmode) {
    872 			sdf = DPARM_DEFAULT & ~DPARM_TQING;
    873 		} else {
    874 			int rvf = ISP_FW_REVX(isp->isp_fwrev);
    875 			sdf = DPARM_SAFE_DFLT;
    876 
    877 			/*
    878 			 * It is not quite clear when this changed over so that
    879 			 * we could force narrow and async, so assume >= 7.55
    880 			 * for i/t F/W and = 4.55 for initiator f/w.
    881 			 */
    882 			if ((ISP_FW_REV(4, 55, 0) <= rvf &&
    883 			    (ISP_FW_REV(5, 0, 0) > rvf)) ||
    884 			    (ISP_FW_REV(7, 55, 0) <= rvf)) {
    885 				sdf |= DPARM_NARROW | DPARM_ASYNC;
    886 			}
    887 		}
    888 		mbs.param[0] = MBOX_SET_TARGET_PARAMS;
    889 		mbs.param[1] = (tgt << 8) | (channel << 15);
    890 		mbs.param[2] = sdf;
    891 		mbs.param[3] =
    892 		    (sdp->isp_devparam[tgt].sync_offset << 8) |
    893 		    (sdp->isp_devparam[tgt].sync_period);
    894 		isp_mboxcmd(isp, &mbs);
    895 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    896 			sdf = DPARM_SAFE_DFLT;
    897 			mbs.param[0] = MBOX_SET_TARGET_PARAMS;
    898 			mbs.param[1] = (tgt << 8) | (channel << 15);
    899 			mbs.param[2] = sdf;
    900 			mbs.param[3] =
    901 			    (sdp->isp_devparam[tgt].sync_offset << 8) |
    902 			    (sdp->isp_devparam[tgt].sync_period);
    903 			isp_mboxcmd(isp, &mbs);
    904 			if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    905 				PRINTF("%s: failed even to set defaults for "
    906 				    "target %d\n", isp->isp_name, tgt);
    907 				continue;
    908 			}
    909 		}
    910 
    911 #if	0
    912 		/*
    913 		 * We don't update dev_flags with what we've set
    914 		 * because that's not the ultimate goal setting.
    915 		 * If we succeed with the command, we *do* update
    916 		 * cur_dflags by getting target parameters.
    917 		 */
    918 		mbs.param[0] = MBOX_GET_TARGET_PARAMS;
    919 		mbs.param[1] = (tgt << 8) | (channel << 15);
    920 		isp_mboxcmd(isp, &mbs);
    921 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    922 			/*
    923 			 * Urrr.... We'll set cur_dflags to DPARM_SAFE_DFLT so
    924 			 * we don't try and do tags if tags aren't enabled.
    925 			 */
    926 			sdp->isp_devparam[tgt].cur_dflags = DPARM_SAFE_DFLT;
    927 		} else {
    928 			sdp->isp_devparam[tgt].cur_dflags = mbs.param[2];
    929 			sdp->isp_devparam[tgt].cur_offset = mbs.param[3] >> 8;
    930 			sdp->isp_devparam[tgt].cur_period = mbs.param[3] & 0xff;
    931 		}
    932 		IDPRINTF(3, ("%s: set flags 0x%x got 0x%x back for target %d\n",
    933 		    isp->isp_name, sdf, mbs.param[2], tgt));
    934 
    935 #else
    936 		/*
    937 		 * We don't update any information because we need to run
    938 		 * at least one command per target to cause a new state
    939 		 * to be latched.
    940 		 */
    941 #endif
    942 		/*
    943 		 * Ensure that we don't believe tagged queuing is enabled yet.
    944 		 * It turns out that sometimes the ISP just ignores our
    945 		 * attempts to set parameters for devices that it hasn't
    946 		 * seen yet.
    947 		 */
    948 		sdp->isp_devparam[tgt].cur_dflags &= ~DPARM_TQING;
    949 		if ((ISP_FW_REV(4, 55, 0) <= ISP_FW_REVX(isp->isp_fwrev) &&
    950 		    (ISP_FW_REV(5, 0, 0) > ISP_FW_REVX(isp->isp_fwrev))) ||
    951 		    (ISP_FW_REVX(isp->isp_fwrev) >= ISP_FW_REV(7, 55, 0)))
    952 			maxlun = 32;
    953 		else
    954 			maxlun = 8;
    955 		for (lun = 0; lun < maxlun; lun++) {
    956 			mbs.param[0] = MBOX_SET_DEV_QUEUE_PARAMS;
    957 			mbs.param[1] = (channel << 15) | (tgt << 8) | lun;
    958 			mbs.param[2] = sdp->isp_max_queue_depth;
    959 			mbs.param[3] = sdp->isp_devparam[tgt].exc_throttle;
    960 			isp_mboxcmd(isp, &mbs);
    961 			if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    962 				PRINTF("%s: failed to set device queue "
    963 				    "parameters for target %d, lun %d\n",
    964 				    isp->isp_name, tgt, lun);
    965 				break;
    966 			}
    967 		}
    968 	}
    969 }
    970 
    971 /*
    972  * Fibre Channel specific initialization.
    973  *
    974  * Locks are held before coming here.
    975  */
    976 static void
    977 isp_fibre_init(isp)
    978 	struct ispsoftc *isp;
    979 {
    980 	fcparam *fcp;
    981 	isp_icb_t *icbp;
    982 	mbreg_t mbs;
    983 	int loopid;
    984 
    985 	fcp = isp->isp_param;
    986 
    987 	/*
    988 	 * For systems that don't have BIOS methods for which
    989 	 * we can easily change the NVRAM based loopid, we'll
    990 	 * override that here. Note that when we initialize
    991 	 * the firmware we may get back a different loopid than
    992 	 * we asked for anyway. XXX This is probably not the
    993 	 * best way to figure this out XXX
    994 	 */
    995 #ifndef	__i386__
    996 	loopid = DEFAULT_LOOPID(isp);
    997 #else
    998 	loopid = fcp->isp_loopid;
    999 #endif
   1000 
   1001 	icbp = (isp_icb_t *) fcp->isp_scratch;
   1002 	MEMZERO(icbp, sizeof (*icbp));
   1003 
   1004 	icbp->icb_version = ICB_VERSION1;
   1005 #ifdef	ISP_TARGET_MODE
   1006 	fcp->isp_fwoptions = ICBOPT_TGT_ENABLE;
   1007 #else
   1008 	fcp->isp_fwoptions = 0;
   1009 #endif
   1010 	fcp->isp_fwoptions |= ICBOPT_FAIRNESS;
   1011 	/*
   1012 	 * If this is a 2100 < revision 5, we have to turn off FAIRNESS.
   1013 	 */
   1014 	if ((isp->isp_type == ISP_HA_FC_2100) && isp->isp_revision < 5) {
   1015 		fcp->isp_fwoptions &= ~ICBOPT_FAIRNESS;
   1016 	}
   1017 	fcp->isp_fwoptions |= ICBOPT_PDBCHANGE_AE;
   1018 	fcp->isp_fwoptions |= ICBOPT_HARD_ADDRESS;
   1019 	/*
   1020 	 * We have to use FULL LOGIN even though it resets the loop too much
   1021 	 * because otherwise port database entries don't get updated after
   1022 	 * a LIP- this is a known f/w bug.
   1023 	 */
   1024 	if (ISP_FW_REVX(isp->isp_fwrev) < ISP_FW_REV(1, 17, 0)) {
   1025 		fcp->isp_fwoptions |= ICBOPT_FULL_LOGIN;
   1026 	}
   1027 #ifndef	ISP_NO_FASTPOST_FC
   1028 	fcp->isp_fwoptions |= ICBOPT_FAST_POST;
   1029 #endif
   1030 	if (isp->isp_confopts & ISP_CFG_FULL_DUPLEX)
   1031 		fcp->isp_fwoptions |= ICBOPT_FULL_DUPLEX;
   1032 
   1033 	/*
   1034 	 * We don't set ICBOPT_PORTNAME because we want our
   1035 	 * Node Name && Port Names to be distinct.
   1036 	 */
   1037 
   1038 	icbp->icb_fwoptions = fcp->isp_fwoptions;
   1039 	icbp->icb_maxfrmlen = fcp->isp_maxfrmlen;
   1040 	if (icbp->icb_maxfrmlen < ICB_MIN_FRMLEN ||
   1041 	    icbp->icb_maxfrmlen > ICB_MAX_FRMLEN) {
   1042 		PRINTF("%s: bad frame length (%d) from NVRAM- using %d\n",
   1043 		    isp->isp_name, fcp->isp_maxfrmlen, ICB_DFLT_FRMLEN);
   1044 		icbp->icb_maxfrmlen = ICB_DFLT_FRMLEN;
   1045 	}
   1046 	icbp->icb_maxalloc = fcp->isp_maxalloc;
   1047 	if (icbp->icb_maxalloc < 1) {
   1048 		PRINTF("%s: bad maximum allocation (%d)- using 16\n",
   1049 		     isp->isp_name, fcp->isp_maxalloc);
   1050 		icbp->icb_maxalloc = 16;
   1051 	}
   1052 	icbp->icb_execthrottle = fcp->isp_execthrottle;
   1053 	if (icbp->icb_execthrottle < 1) {
   1054 		PRINTF("%s: bad execution throttle of %d- using 16\n",
   1055 		    isp->isp_name, fcp->isp_execthrottle);
   1056 		icbp->icb_execthrottle = ICB_DFLT_THROTTLE;
   1057 	}
   1058 	icbp->icb_retry_delay = fcp->isp_retry_delay;
   1059 	icbp->icb_retry_count = fcp->isp_retry_count;
   1060 	icbp->icb_hardaddr = loopid;
   1061 	icbp->icb_logintime = 60;	/* 60 second login timeout */
   1062 
   1063 	if (fcp->isp_nodewwn) {
   1064 		u_int64_t pn;
   1065 		MAKE_NODE_NAME_FROM_WWN(icbp->icb_nodename, fcp->isp_nodewwn);
   1066 		if (fcp->isp_portwwn) {
   1067 			pn = fcp->isp_portwwn;
   1068 		} else {
   1069 			pn = fcp->isp_nodewwn |
   1070 			    (((u_int64_t)(isp->isp_unit+1)) << 56);
   1071 		}
   1072 		/*
   1073 		 * If the top nibble is 2, we can construct a port name
   1074 		 * from the node name by setting a nonzero instance in
   1075 		 * bits 56..59. Otherwise, we need to make it identical
   1076 		 * to Node name...
   1077 		 */
   1078 		if ((fcp->isp_nodewwn >> 60) == 2) {
   1079 			MAKE_NODE_NAME_FROM_WWN(icbp->icb_portname, pn);
   1080 		} else {
   1081 			MAKE_NODE_NAME_FROM_WWN(icbp->icb_portname,
   1082 			    fcp->isp_nodewwn);
   1083 		}
   1084 	} else {
   1085 		fcp->isp_fwoptions &= ~(ICBOPT_USE_PORTNAME|ICBOPT_FULL_LOGIN);
   1086 	}
   1087 	icbp->icb_rqstqlen = RQUEST_QUEUE_LEN;
   1088 	icbp->icb_rsltqlen = RESULT_QUEUE_LEN;
   1089 	icbp->icb_rqstaddr[RQRSP_ADDR0015] = DMA_LSW(isp->isp_rquest_dma);
   1090 	icbp->icb_rqstaddr[RQRSP_ADDR1631] = DMA_MSW(isp->isp_rquest_dma);
   1091 	icbp->icb_respaddr[RQRSP_ADDR0015] = DMA_LSW(isp->isp_result_dma);
   1092 	icbp->icb_respaddr[RQRSP_ADDR1631] = DMA_MSW(isp->isp_result_dma);
   1093 	ISP_SWIZZLE_ICB(isp, icbp);
   1094 
   1095 	/*
   1096 	 * Do this *before* initializing the firmware.
   1097 	 */
   1098 	isp_mark_getpdb_all(isp);
   1099 	fcp->isp_fwstate = FW_CONFIG_WAIT;
   1100 	fcp->isp_loopstate = LOOP_NIL;
   1101 
   1102 	MemoryBarrier();
   1103 	for (;;) {
   1104 		mbs.param[0] = MBOX_INIT_FIRMWARE;
   1105 		mbs.param[1] = 0;
   1106 		mbs.param[2] = DMA_MSW(fcp->isp_scdma);
   1107 		mbs.param[3] = DMA_LSW(fcp->isp_scdma);
   1108 		mbs.param[4] = 0;
   1109 		mbs.param[5] = 0;
   1110 		mbs.param[6] = 0;
   1111 		mbs.param[7] = 0;
   1112 		isp_mboxcmd(isp, &mbs);
   1113 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
   1114 			PRINTF("%s: INIT FIRMWARE failed (code 0x%x)\n",
   1115 			    isp->isp_name, mbs.param[0]);
   1116 			if (mbs.param[0] & 0x8000) {
   1117 				SYS_DELAY(1000);
   1118 				continue;
   1119 			}
   1120 			return;
   1121 		}
   1122 		break;
   1123 	}
   1124 
   1125 	isp->isp_reqidx = isp->isp_reqodx = 0;
   1126 	isp->isp_residx = 0;
   1127 	isp->isp_sendmarker = 1;
   1128 
   1129 	/*
   1130 	 * Whatever happens, we're now committed to being here.
   1131 	 */
   1132 	isp->isp_state = ISP_INITSTATE;
   1133 }
   1134 
   1135 /*
   1136  * Fibre Channel Support- get the port database for the id.
   1137  *
   1138  * Locks are held before coming here. Return 0 if success,
   1139  * else failure.
   1140  */
   1141 
   1142 static void
   1143 isp_mark_getpdb_all(isp)
   1144 	struct ispsoftc *isp;
   1145 {
   1146 	fcparam *fcp = (fcparam *) isp->isp_param;
   1147 	int i;
   1148 	for (i = 0; i < MAX_FC_TARG; i++) {
   1149 		fcp->portdb[i].valid = 0;
   1150 	}
   1151 }
   1152 
   1153 static int
   1154 isp_getpdb(isp, id, pdbp)
   1155 	struct ispsoftc *isp;
   1156 	int id;
   1157 	isp_pdb_t *pdbp;
   1158 {
   1159 	fcparam *fcp = (fcparam *) isp->isp_param;
   1160 	mbreg_t mbs;
   1161 
   1162 	mbs.param[0] = MBOX_GET_PORT_DB;
   1163 	mbs.param[1] = id << 8;
   1164 	mbs.param[2] = DMA_MSW(fcp->isp_scdma);
   1165 	mbs.param[3] = DMA_LSW(fcp->isp_scdma);
   1166 	/*
   1167 	 * Unneeded. For the 2100, except for initializing f/w, registers
   1168 	 * 4/5 have to not be written to.
   1169 	 *	mbs.param[4] = 0;
   1170 	 *	mbs.param[5] = 0;
   1171 	 *
   1172 	 */
   1173 	mbs.param[6] = 0;
   1174 	mbs.param[7] = 0;
   1175 	isp_mboxcmd(isp, &mbs);
   1176 	switch (mbs.param[0]) {
   1177 	case MBOX_COMMAND_COMPLETE:
   1178 		MemoryBarrier();
   1179 		ISP_UNSWIZZLE_AND_COPY_PDBP(isp, pdbp, fcp->isp_scratch);
   1180 		break;
   1181 	case MBOX_HOST_INTERFACE_ERROR:
   1182 		PRINTF("%s: DMA error getting port database\n", isp->isp_name);
   1183 		return (-1);
   1184 	case MBOX_COMMAND_PARAM_ERROR:
   1185 		/* Not Logged In */
   1186 		IDPRINTF(3, ("%s: Param Error on Get Port Database for id %d\n",
   1187 		    isp->isp_name, id));
   1188 		return (-1);
   1189 	default:
   1190 		PRINTF("%s: error 0x%x getting port database for ID %d\n",
   1191 		    isp->isp_name, mbs.param[0], id);
   1192 		return (-1);
   1193 	}
   1194 	return (0);
   1195 }
   1196 
   1197 static u_int64_t
   1198 isp_get_portname(isp, loopid, nodename)
   1199 	struct ispsoftc *isp;
   1200 	int loopid;
   1201 	int nodename;
   1202 {
   1203 	u_int64_t wwn = 0;
   1204 	mbreg_t mbs;
   1205 
   1206 	mbs.param[0] = MBOX_GET_PORT_NAME;
   1207 	mbs.param[1] = loopid << 8;
   1208 	if (nodename)
   1209 		mbs.param[1] |= 1;
   1210 	isp_mboxcmd(isp, &mbs);
   1211 	if (mbs.param[0] == MBOX_COMMAND_COMPLETE) {
   1212 		wwn =
   1213 		    (((u_int64_t)(mbs.param[2] & 0xff)) << 56) |
   1214 		    (((u_int64_t)(mbs.param[2] >> 8))	<< 48) |
   1215 		    (((u_int64_t)(mbs.param[3] & 0xff))	<< 40) |
   1216 		    (((u_int64_t)(mbs.param[3] >> 8))	<< 32) |
   1217 		    (((u_int64_t)(mbs.param[6] & 0xff))	<< 24) |
   1218 		    (((u_int64_t)(mbs.param[6] >> 8))	<< 16) |
   1219 		    (((u_int64_t)(mbs.param[7] & 0xff))	<<  8) |
   1220 		    (((u_int64_t)(mbs.param[7] >> 8)));
   1221 	}
   1222 	return (wwn);
   1223 }
   1224 
   1225 /*
   1226  * Make sure we have good FC link and know our Loop ID.
   1227  */
   1228 
   1229 static int
   1230 isp_fclink_test(isp, waitdelay)
   1231 	struct ispsoftc *isp;
   1232 	int waitdelay;
   1233 {
   1234 	static char *toponames[] = {
   1235 		"Private Loop",
   1236 		"FL Port",
   1237 		"N-Port to N-Port",
   1238 		"F Port"
   1239 	};
   1240 	char *tname;
   1241 	mbreg_t mbs;
   1242 	int count, topo = -1;
   1243 	u_int8_t lwfs;
   1244 	fcparam *fcp;
   1245 #if	defined(ISP2100_FABRIC)
   1246 	isp_pdb_t pdb;
   1247 #endif
   1248 	fcp = isp->isp_param;
   1249 
   1250 	/*
   1251 	 * Wait up to N microseconds for F/W to go to a ready state.
   1252 	 */
   1253 	lwfs = FW_CONFIG_WAIT;
   1254 	for (count = 0; count < waitdelay; count += 100) {
   1255 		isp_fw_state(isp);
   1256 		if (lwfs != fcp->isp_fwstate) {
   1257 			PRINTF("%s: Firmware State %s -> %s\n",
   1258 			    isp->isp_name, isp2100_fw_statename((int)lwfs),
   1259 			    isp2100_fw_statename((int)fcp->isp_fwstate));
   1260 			lwfs = fcp->isp_fwstate;
   1261 		}
   1262 		if (fcp->isp_fwstate == FW_READY) {
   1263 			break;
   1264 		}
   1265 		SYS_DELAY(100);	/* wait 100 microseconds */
   1266 	}
   1267 
   1268 	/*
   1269 	 * If we haven't gone to 'ready' state, return.
   1270 	 */
   1271 	if (fcp->isp_fwstate != FW_READY) {
   1272 		return (-1);
   1273 	}
   1274 
   1275 	/*
   1276 	 * Get our Loop ID (if possible). We really need to have it.
   1277 	 */
   1278 	mbs.param[0] = MBOX_GET_LOOP_ID;
   1279 	isp_mboxcmd(isp, &mbs);
   1280 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
   1281 		PRINTF("%s: GET LOOP ID failed\n", isp->isp_name);
   1282 		return (-1);
   1283 	}
   1284 	fcp->isp_loopid = mbs.param[1];
   1285 	if (isp->isp_type == ISP_HA_FC_2200) {
   1286 		if (ISP_FW_REVX(isp->isp_fwrev) >= ISP_FW_REV(2, 0, 14)) {
   1287 			topo = (int) mbs.param[6];
   1288 		}
   1289 	} else if (isp->isp_type == ISP_HA_FC_2100) {
   1290 		if (ISP_FW_REVX(isp->isp_fwrev) >= ISP_FW_REV(1, 17, 26)) {
   1291 			topo = (int) mbs.param[6];
   1292 		}
   1293 	}
   1294 	if (topo < 0 || topo > 3)
   1295 		tname = "unknown";
   1296 	else
   1297 		tname = toponames[topo];
   1298 
   1299 	/*
   1300 	 * If we're not on a fabric, the low 8 bits will be our AL_PA.
   1301 	 * If we're on a fabric, the low 8 bits will still be our AL_PA.
   1302 	 */
   1303 	fcp->isp_alpa = mbs.param[2];
   1304 #if	defined(ISP2100_FABRIC)
   1305 	fcp->isp_onfabric = 0;
   1306 	if (isp_getpdb(isp, FL_PORT_ID, &pdb) == 0) {
   1307 		fcp->isp_portid = mbs.param[2] | (((int)mbs.param[3]) << 16);
   1308 		fcp->isp_onfabric = 1;
   1309 		CFGPRINTF("%s: Loop ID %d, AL_PA 0x%x, Port ID 0x%x Loop State "
   1310 		    "0x%x topology %s\n", isp->isp_name, fcp->isp_loopid,
   1311 		    fcp->isp_alpa, fcp->isp_portid, fcp->isp_loopstate, tname);
   1312 
   1313 		/*
   1314 		 * Make sure we're logged out of all fabric devices.
   1315 		 */
   1316 		for (count = FC_SNS_ID+1; count < MAX_FC_TARG; count++) {
   1317 			struct lportdb *lp = &fcp->portdb[count];
   1318 			if (lp->valid == 0 || lp->fabdev == 0)
   1319 				continue;
   1320 			PRINTF("%s: logging out target %d at Loop ID %d "
   1321 			    "(port id 0x%x)\n", isp->isp_name, count,
   1322 			    lp->loopid, lp->portid);
   1323 			mbs.param[0] = MBOX_FABRIC_LOGOUT;
   1324 			mbs.param[1] = lp->loopid << 8;
   1325 			mbs.param[2] = 0;
   1326 			mbs.param[3] = 0;
   1327 			isp_mboxcmd(isp, &mbs);
   1328 		}
   1329 	} else
   1330 #endif
   1331 	CFGPRINTF("%s: Loop ID %d, ALPA 0x%x Loop State 0x%x topology %s\n",
   1332 	    isp->isp_name, fcp->isp_loopid, fcp->isp_alpa, fcp->isp_loopstate,
   1333 	    tname);
   1334 	return (0);
   1335 }
   1336 
   1337 /*
   1338  * Compare two local port db entities and return 1 if they're the same, else 0.
   1339  */
   1340 
   1341 static int
   1342 isp_same_lportdb(a, b)
   1343 	struct lportdb *a, *b;
   1344 {
   1345 	/*
   1346 	 * We decide two lports are the same if they have non-zero and
   1347 	 * identical port WWNs and identical loop IDs.
   1348 	 */
   1349 
   1350 	if (a->port_wwn == 0 || a->port_wwn != b->port_wwn ||
   1351 	    a->loopid != b->loopid) {
   1352 		return (0);
   1353 	} else {
   1354 		return (1);
   1355 	}
   1356 }
   1357 
   1358 /*
   1359  * Synchronize our soft copy of the port database with what the f/w thinks
   1360  * (with a view toward possibly for a specific target....)
   1361  */
   1362 
   1363 static int
   1364 isp_pdb_sync(isp, target)
   1365 	struct ispsoftc *isp;
   1366 	int target;
   1367 {
   1368 	struct lportdb *lp, *tport;
   1369 	fcparam *fcp = isp->isp_param;
   1370 	isp_pdb_t pdb;
   1371 	int loopid, lim;
   1372 
   1373 #ifdef	ISP2100_FABRIC
   1374 	/*
   1375 	 * XXX: If we do this *after* building up our local port database,
   1376 	 * XXX: the commands simply don't work.
   1377 	 */
   1378 	/*
   1379 	 * (Re)discover all fabric devices
   1380 	 */
   1381 	if (fcp->isp_onfabric)
   1382 		(void) isp_scan_fabric(isp);
   1383 #endif
   1384 
   1385 
   1386 	/*
   1387 	 * Run through the local loop ports and get port database info
   1388 	 * for each loop ID.
   1389 	 *
   1390 	 * There's a somewhat unexplained situation where the f/w passes back
   1391 	 * the wrong database entity- if that happens, just restart (up to
   1392 	 * FL_PORT_ID times).
   1393 	 */
   1394 	tport = fcp->tport;
   1395 
   1396 	/*
   1397 	 * make sure the temp port database is clean...
   1398 	 */
   1399 	MEMZERO((void *) tport, sizeof (tport));
   1400 	for (lim = loopid = 0; loopid < FL_PORT_ID; loopid++) {
   1401 		lp = &tport[loopid];
   1402 		lp->node_wwn = isp_get_portname(isp, loopid, 1);
   1403 		if (lp->node_wwn == 0)
   1404 			continue;
   1405 		lp->port_wwn = isp_get_portname(isp, loopid, 0);
   1406 		if (lp->port_wwn == 0) {
   1407 			lp->node_wwn = 0;
   1408 			continue;
   1409 		}
   1410 
   1411 		/*
   1412 		 * Get an entry....
   1413 		 */
   1414 		if (isp_getpdb(isp, loopid, &pdb) != 0) {
   1415 			continue;
   1416 		}
   1417 
   1418 		/*
   1419 		 * If the returned database element doesn't match what we
   1420 		 * asked for, restart the process entirely (up to a point...).
   1421 		 */
   1422 		if (pdb.pdb_loopid != loopid) {
   1423 			IDPRINTF(1, ("%s: wankage (%d != %d)\n",
   1424 			    isp->isp_name, pdb.pdb_loopid, loopid));
   1425 			loopid = 0;
   1426 			if (lim++ < FL_PORT_ID) {
   1427 				continue;
   1428 			}
   1429 			PRINTF("%s: giving up on synchronizing the port "
   1430 			    "database\n", isp->isp_name);
   1431 			return (-1);
   1432 		}
   1433 
   1434 		/*
   1435 		 * Save the pertinent info locally.
   1436 		 */
   1437 		lp->node_wwn =
   1438 		    (((u_int64_t)pdb.pdb_nodename[0]) << 56) |
   1439 		    (((u_int64_t)pdb.pdb_nodename[1]) << 48) |
   1440 		    (((u_int64_t)pdb.pdb_nodename[2]) << 40) |
   1441 		    (((u_int64_t)pdb.pdb_nodename[3]) << 32) |
   1442 		    (((u_int64_t)pdb.pdb_nodename[4]) << 24) |
   1443 		    (((u_int64_t)pdb.pdb_nodename[5]) << 16) |
   1444 		    (((u_int64_t)pdb.pdb_nodename[6]) <<  8) |
   1445 		    (((u_int64_t)pdb.pdb_nodename[7]));
   1446 		lp->port_wwn =
   1447 		    (((u_int64_t)pdb.pdb_portname[0]) << 56) |
   1448 		    (((u_int64_t)pdb.pdb_portname[1]) << 48) |
   1449 		    (((u_int64_t)pdb.pdb_portname[2]) << 40) |
   1450 		    (((u_int64_t)pdb.pdb_portname[3]) << 32) |
   1451 		    (((u_int64_t)pdb.pdb_portname[4]) << 24) |
   1452 		    (((u_int64_t)pdb.pdb_portname[5]) << 16) |
   1453 		    (((u_int64_t)pdb.pdb_portname[6]) <<  8) |
   1454 		    (((u_int64_t)pdb.pdb_portname[7]));
   1455 		lp->roles =
   1456 		    (pdb.pdb_prli_svc3 & SVC3_ROLE_MASK) >> SVC3_ROLE_SHIFT;
   1457 		lp->portid = BITS2WORD(pdb.pdb_portid_bits);
   1458 		lp->loopid = pdb.pdb_loopid;
   1459 		/*
   1460 		 * Do a quick check to see whether this matches the saved port
   1461 		 * database for the same loopid. We do this here to save
   1462 		 * searching later (if possible). Note that this fails over
   1463 		 * time as things shuffle on the loop- we get the current
   1464 		 * loop state (where loop id as an index matches loop id in
   1465 		 * use) and then compare it to our saved database which
   1466 		 * never shifts.
   1467 		 */
   1468 		if (target >= 0 && isp_same_lportdb(lp, &fcp->portdb[target])) {
   1469 			lp->valid = 1;
   1470 		}
   1471 	}
   1472 
   1473 	/*
   1474 	 * If we get this far, we've settled our differences with the f/w
   1475 	 * and we can say that the loop state is ready.
   1476 	 */
   1477 	fcp->isp_loopstate = LOOP_READY;
   1478 
   1479 	/*
   1480 	 * Mark all of the permanent local loop database entries as invalid.
   1481 	 */
   1482 	for (loopid = 0; loopid < FL_PORT_ID; loopid++) {
   1483 		fcp->portdb[loopid].valid = 0;
   1484 	}
   1485 
   1486 	/*
   1487 	 * Now merge our local copy of the port database into our saved copy.
   1488 	 * Notify the outer layers of new devices arriving.
   1489 	 */
   1490 	for (loopid = 0; loopid < FL_PORT_ID; loopid++) {
   1491 		int i;
   1492 
   1493 		/*
   1494 		 * If we don't have a non-zero Port WWN, we're not here.
   1495 		 */
   1496 		if (tport[loopid].port_wwn == 0) {
   1497 			continue;
   1498 		}
   1499 
   1500 		/*
   1501 		 * If we've already marked our tmp copy as valid,
   1502 		 * this means that we've decided that it's the
   1503 		 * same as our saved data base. This didn't include
   1504 		 * the 'valid' marking so we have set that here.
   1505 		 */
   1506 		if (tport[loopid].valid) {
   1507 			fcp->portdb[loopid].valid = 1;
   1508 			continue;
   1509 		}
   1510 
   1511 		/*
   1512 		 * For the purposes of deciding whether this is the
   1513 		 * 'same' device or not, we only search for an identical
   1514 		 * Port WWN. Node WWNs may or may not be the same as
   1515 		 * the Port WWN, and there may be multiple different
   1516 		 * Port WWNs with the same Node WWN. It would be chaos
   1517 		 * to have multiple identical Port WWNs, so we don't
   1518 		 * allow that.
   1519 		 */
   1520 
   1521 		for (i = 0; i < FL_PORT_ID; i++) {
   1522 			int j;
   1523 			if (fcp->portdb[i].port_wwn == 0)
   1524 				continue;
   1525 			if (fcp->portdb[i].port_wwn != tport[loopid].port_wwn)
   1526 				continue;
   1527 			/*
   1528 			 * We found this WWN elsewhere- it's changed
   1529 			 * loopids then. We don't change it's actual
   1530 			 * position in our cached port database- we
   1531 			 * just change the actual loop ID we'd use.
   1532 			 */
   1533 			if (fcp->portdb[i].loopid != loopid) {
   1534 				PRINTF("%s: Target ID %d Loop 0x%x (Port 0x%x) "
   1535 				    "=> Loop 0x%x (Port 0x%x) \n",
   1536 				    isp->isp_name, i, fcp->portdb[i].loopid,
   1537 				    fcp->portdb[i].portid, loopid,
   1538 				    tport[loopid].portid);
   1539 			}
   1540 			fcp->portdb[i].portid = tport[loopid].portid;
   1541 			fcp->portdb[i].loopid = loopid;
   1542 			fcp->portdb[i].valid = 1;
   1543 			/*
   1544 			 * XXX: Should we also propagate roles in case they
   1545 			 * XXX: changed?
   1546 			 */
   1547 
   1548 			/*
   1549 			 * Now make sure this Port WWN doesn't exist elsewhere
   1550 			 * in the port database.
   1551 			 */
   1552 			for (j = i+1; j < FL_PORT_ID; j++) {
   1553 				if (fcp->portdb[i].port_wwn !=
   1554 				    fcp->portdb[j].port_wwn) {
   1555 					continue;
   1556 				}
   1557 				PRINTF("%s: Target ID %d Duplicates Target ID "
   1558 				    "%d- killing off both\n",
   1559 				    isp->isp_name, j, i);
   1560 				/*
   1561 				 * Invalidate the 'old' *and* 'new' ones.
   1562 				 * This is really harsh and not quite right,
   1563 				 * but if this happens, we really don't know
   1564 				 * who is what at this point.
   1565 				 */
   1566 				fcp->portdb[i].valid = 0;
   1567 				fcp->portdb[j].valid = 0;
   1568 			}
   1569 			break;
   1570 		}
   1571 
   1572 		/*
   1573 		 * If we didn't traverse the entire port database,
   1574 		 * then we found (and remapped) an existing entry.
   1575 		 * No need to notify anyone- go for the next one.
   1576 		 */
   1577 		if (i < FL_PORT_ID) {
   1578 			continue;
   1579 		}
   1580 
   1581 		/*
   1582 		 * We've not found this Port WWN anywhere. It's a new entry.
   1583 		 * See if we can leave it where it is (with target == loopid).
   1584 		 */
   1585 		if (fcp->portdb[loopid].port_wwn != 0) {
   1586 			for (lim = 0; lim < FL_PORT_ID; lim++) {
   1587 				if (fcp->portdb[lim].port_wwn == 0)
   1588 					break;
   1589 			}
   1590 			/* "Cannot Happen" */
   1591 			if (lim == FL_PORT_ID) {
   1592 				PRINTF("%s: remap overflow?\n", isp->isp_name);
   1593 				continue;
   1594 			}
   1595 			i = lim;
   1596 		} else {
   1597 			i = loopid;
   1598 		}
   1599 
   1600 		/*
   1601 		 * NB:	The actual loopid we use here is loopid- we may
   1602 		 *	in fact be at a completely different index (target).
   1603 		 */
   1604 		fcp->portdb[i].loopid = loopid;
   1605 		fcp->portdb[i].port_wwn = tport[loopid].port_wwn;
   1606 		fcp->portdb[i].node_wwn = tport[loopid].node_wwn;
   1607 		fcp->portdb[i].roles = tport[loopid].roles;
   1608 		fcp->portdb[i].portid = tport[loopid].portid;
   1609 		fcp->portdb[i].valid = 1;
   1610 
   1611 		/*
   1612 		 * Tell the outside world we've arrived.
   1613 		 */
   1614 		(void) isp_async(isp, ISPASYNC_PDB_CHANGED, &i);
   1615 	}
   1616 
   1617 	/*
   1618 	 * Now find all previously used targets that are now invalid and
   1619 	 * notify the outer layers that they're gone.
   1620 	 */
   1621 	for (lp = fcp->portdb; lp < &fcp->portdb[FL_PORT_ID]; lp++) {
   1622 		if (lp->valid || lp->port_wwn == 0)
   1623 			continue;
   1624 
   1625 		/*
   1626 		 * Tell the outside world we've gone away.
   1627 		 */
   1628 		loopid = lp - fcp->portdb;
   1629 		(void) isp_async(isp, ISPASYNC_PDB_CHANGED, &loopid);
   1630 		MEMZERO((void *) lp, sizeof (*lp));
   1631 	}
   1632 
   1633 #ifdef	ISP2100_FABRIC
   1634 	/*
   1635 	 * Now log in any fabric devices
   1636 	 */
   1637 	for (lp = &fcp->portdb[FC_SNS_ID+1];
   1638 	     lp < &fcp->portdb[MAX_FC_TARG]; lp++) {
   1639 		mbreg_t mbs;
   1640 
   1641 		/*
   1642 		 * Nothing here?
   1643 		 */
   1644 		if (lp->port_wwn == 0)
   1645 			continue;
   1646 		/*
   1647 		 * Don't try to log into yourself.
   1648 		 */
   1649 		if (lp->portid == fcp->isp_portid)
   1650 			continue;
   1651 
   1652 		/*
   1653 		 * Force a logout.
   1654 		 */
   1655 		lp->loopid = loopid = lp - fcp->portdb;
   1656 		mbs.param[0] = MBOX_FABRIC_LOGOUT;
   1657 		mbs.param[1] = lp->loopid << 8;
   1658 		mbs.param[2] = 0;
   1659 		mbs.param[3] = 0;
   1660 		isp_mboxcmd(isp, &mbs);
   1661 
   1662 		/*
   1663 		 * And log in....
   1664 		 */
   1665 		mbs.param[0] = MBOX_FABRIC_LOGIN;
   1666 		mbs.param[1] = lp->loopid << 8;
   1667 		mbs.param[2] = lp->portid >> 16;
   1668 		mbs.param[3] = lp->portid & 0xffff;
   1669 		isp_mboxcmd(isp, &mbs);
   1670 		switch (mbs.param[0]) {
   1671 		case  MBOX_COMMAND_COMPLETE:
   1672 			break;
   1673 		case MBOX_COMMAND_ERROR:
   1674 			switch (mbs.param[1]) {
   1675 			case	1:
   1676 				PRINTF("%s: no loop\n", isp->isp_name);
   1677 				break;
   1678 			case	2:
   1679 				PRINTF("%s: IOCB buffer could not be alloced\n",
   1680 				    isp->isp_name);
   1681 				break;
   1682 			case	3:
   1683 				PRINTF("%s: could not alloc xchange resource\n",
   1684 				    isp->isp_name);
   1685 				break;
   1686 			case	4:
   1687 				PRINTF("%s: ELS timeout\n", isp->isp_name);
   1688 				break;
   1689 			case	5:
   1690 				PRINTF("%s: no fabric port\n", isp->isp_name);
   1691 				break;
   1692 			case	6:
   1693 				PRINTF("%s: remote device cannot be a target\n",
   1694 				    isp->isp_name);
   1695 				break;
   1696 			default:
   1697 				break;
   1698 			}
   1699 			continue;
   1700 		default:
   1701 			continue;
   1702 		}
   1703 
   1704 		lp->valid = 1;
   1705 		lp->fabdev = 1;
   1706 		if (isp_getpdb(isp, loopid, &pdb) != 0) {
   1707 			/*
   1708 			 * Be kind...
   1709 			 */
   1710 			lp->roles = (SVC3_TGT_ROLE >> SVC3_ROLE_SHIFT);
   1711 			PRINTF("%s: Faked PortID 0x%x into LoopID %d\n",
   1712 			    isp->isp_name, lp->portid, lp->loopid);
   1713 			continue;
   1714 		}
   1715 		if (pdb.pdb_loopid != lp->loopid) {
   1716 			lp->roles = (SVC3_TGT_ROLE >> SVC3_ROLE_SHIFT);
   1717 			PRINTF("%s: Wanked PortID 0x%x to LoopID %d\n",
   1718 			    isp->isp_name, lp->portid, lp->loopid);
   1719 			continue;
   1720 		}
   1721 		lp->roles =
   1722 		    (pdb.pdb_prli_svc3 & SVC3_ROLE_MASK) >> SVC3_ROLE_SHIFT;
   1723 		lp->portid = BITS2WORD(pdb.pdb_portid_bits);
   1724 		lp->loopid = loopid;
   1725 		lp->node_wwn =
   1726 		    (((u_int64_t)pdb.pdb_nodename[0]) << 56) |
   1727 		    (((u_int64_t)pdb.pdb_nodename[1]) << 48) |
   1728 		    (((u_int64_t)pdb.pdb_nodename[2]) << 40) |
   1729 		    (((u_int64_t)pdb.pdb_nodename[3]) << 32) |
   1730 		    (((u_int64_t)pdb.pdb_nodename[4]) << 24) |
   1731 		    (((u_int64_t)pdb.pdb_nodename[5]) << 16) |
   1732 		    (((u_int64_t)pdb.pdb_nodename[6]) <<  8) |
   1733 		    (((u_int64_t)pdb.pdb_nodename[7]));
   1734 		lp->port_wwn =
   1735 		    (((u_int64_t)pdb.pdb_portname[0]) << 56) |
   1736 		    (((u_int64_t)pdb.pdb_portname[1]) << 48) |
   1737 		    (((u_int64_t)pdb.pdb_portname[2]) << 40) |
   1738 		    (((u_int64_t)pdb.pdb_portname[3]) << 32) |
   1739 		    (((u_int64_t)pdb.pdb_portname[4]) << 24) |
   1740 		    (((u_int64_t)pdb.pdb_portname[5]) << 16) |
   1741 		    (((u_int64_t)pdb.pdb_portname[6]) <<  8) |
   1742 		    (((u_int64_t)pdb.pdb_portname[7]));
   1743 		/*
   1744 		 * Check to make sure this all makes sense.
   1745 		 */
   1746 		if (lp->node_wwn && lp->port_wwn) {
   1747 			(void) isp_async(isp, ISPASYNC_PDB_CHANGED, &loopid);
   1748 			continue;
   1749 		}
   1750 		lp->fabdev = lp->valid = 0;
   1751 		PRINTF("%s: Target %d (Loop 0x%x) Port ID 0x%x lost its WWN\n",
   1752 		    isp->isp_name, loopid, lp->loopid, lp->portid);
   1753 		mbs.param[0] = MBOX_FABRIC_LOGOUT;
   1754 		mbs.param[1] = lp->loopid << 8;
   1755 		mbs.param[2] = 0;
   1756 		mbs.param[3] = 0;
   1757 		isp_mboxcmd(isp, &mbs);
   1758 	}
   1759 #endif
   1760 	/*
   1761 	 * If we get here, we've for sure seen not only a valid loop
   1762 	 * but know what is or isn't on it, so mark this for usage
   1763 	 * in ispscsicmd.
   1764 	 */
   1765 	fcp->loop_seen_once = 1;
   1766 	return (0);
   1767 }
   1768 
   1769 #ifdef	ISP2100_FABRIC
   1770 static int
   1771 isp_scan_fabric(isp)
   1772 	struct ispsoftc *isp;
   1773 {
   1774 	fcparam *fcp = isp->isp_param;
   1775 	u_int32_t portid, first_nz_portid;
   1776 	sns_screq_t *reqp;
   1777 	sns_scrsp_t *resp;
   1778 	mbreg_t mbs;
   1779 	int hicap;
   1780 
   1781 	reqp = (sns_screq_t *) fcp->isp_scratch;
   1782 	resp = (sns_scrsp_t *) (&((char *)fcp->isp_scratch)[0x100]);
   1783 	first_nz_portid = portid = fcp->isp_portid;
   1784 
   1785 	for (hicap = 0; hicap < 1024; hicap++) {
   1786 		MEMZERO((void *) reqp, SNS_GAN_REQ_SIZE);
   1787 		reqp->snscb_rblen = SNS_GAN_RESP_SIZE >> 1;
   1788 		reqp->snscb_addr[RQRSP_ADDR0015] =
   1789 			DMA_LSW(fcp->isp_scdma + 0x100);
   1790 		reqp->snscb_addr[RQRSP_ADDR1631] =
   1791 			DMA_MSW(fcp->isp_scdma + 0x100);
   1792 		reqp->snscb_sblen = 6;
   1793 		reqp->snscb_data[0] = SNS_GAN;
   1794 		reqp->snscb_data[4] = portid & 0xffff;
   1795 		reqp->snscb_data[5] = (portid >> 16) & 0xff;
   1796 		ISP_SWIZZLE_SNS_REQ(isp, reqp);
   1797 		mbs.param[0] = MBOX_SEND_SNS;
   1798 		mbs.param[1] = SNS_GAN_REQ_SIZE >> 1;
   1799 		mbs.param[2] = DMA_MSW(fcp->isp_scdma);
   1800 		mbs.param[3] = DMA_LSW(fcp->isp_scdma);
   1801 		mbs.param[6] = 0;
   1802 		mbs.param[7] = 0;
   1803 		MemoryBarrier();
   1804 		isp_mboxcmd(isp, &mbs);
   1805 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
   1806 			return (-1);
   1807 		}
   1808 		ISP_UNSWIZZLE_SNS_RSP(isp, resp, SNS_GAN_RESP_SIZE >> 1);
   1809 		portid = (((u_int32_t) resp->snscb_port_id[0]) << 16) |
   1810 		    (((u_int32_t) resp->snscb_port_id[1]) << 8) |
   1811 		    (((u_int32_t) resp->snscb_port_id[2]));
   1812 		if (isp_async(isp, ISPASYNC_FABRIC_DEV, resp)) {
   1813 			return (-1);
   1814 		}
   1815 		if (first_nz_portid == 0 && portid) {
   1816 			first_nz_portid = portid;
   1817 		}
   1818 		if (first_nz_portid == portid) {
   1819 			return (0);
   1820 		}
   1821 	}
   1822 	/*
   1823 	 * We either have a broken name server or a huge fabric if we get here.
   1824 	 */
   1825 	return (0);
   1826 }
   1827 #endif
   1828 /*
   1829  * Start a command. Locking is assumed done in the caller.
   1830  */
   1831 
   1832 int32_t
   1833 ispscsicmd(xs)
   1834 	ISP_SCSI_XFER_T *xs;
   1835 {
   1836 	struct ispsoftc *isp;
   1837 	u_int16_t iptr, optr;
   1838 	union {
   1839 		ispreq_t *_reqp;
   1840 		ispreqt2_t *_t2reqp;
   1841 	} _u;
   1842 #define	reqp	_u._reqp
   1843 #define	t2reqp	_u._t2reqp
   1844 #define	UZSIZE	max(sizeof (ispreq_t), sizeof (ispreqt2_t))
   1845 	int target, i;
   1846 
   1847 	XS_INITERR(xs);
   1848 	isp = XS_ISP(xs);
   1849 
   1850 	if (isp->isp_state != ISP_RUNSTATE) {
   1851 		PRINTF("%s: adapter not ready\n", isp->isp_name);
   1852 		XS_SETERR(xs, HBA_BOTCH);
   1853 		return (CMD_COMPLETE);
   1854 	}
   1855 
   1856 	/*
   1857 	 * We *could* do the different sequence type that has close
   1858 	 * to the whole Queue Entry for the command...
   1859 	 */
   1860 
   1861 	if (XS_CDBLEN(xs) > (IS_FC(isp) ? 16 : 12) || XS_CDBLEN(xs) == 0) {
   1862 		PRINTF("%s: unsupported cdb length (%d, CDB[0]=0x%x)\n",
   1863 		    isp->isp_name, XS_CDBLEN(xs), XS_CDBP(xs)[0]);
   1864 		XS_SETERR(xs, HBA_BOTCH);
   1865 		return (CMD_COMPLETE);
   1866 	}
   1867 
   1868 	/*
   1869 	 * Check to see whether we have good firmware state still or
   1870 	 * need to refresh our port database for this target.
   1871 	 */
   1872 	target = XS_TGT(xs);
   1873 	if (IS_FC(isp)) {
   1874 		fcparam *fcp = isp->isp_param;
   1875 		struct lportdb *lp;
   1876 #if	defined(ISP2100_FABRIC)
   1877 		if (target >= FL_PORT_ID) {
   1878 			/*
   1879 			 * If we're not on a Fabric, we can't have a target
   1880 			 * above FL_PORT_ID-1. If we're on a fabric, we
   1881 			 * can't have a target less than FC_SNS_ID+1.
   1882 			 */
   1883 			if (fcp->isp_onfabric == 0 || target <= FC_SNS_ID) {
   1884 				XS_SETERR(xs, HBA_SELTIMEOUT);
   1885 				return (CMD_COMPLETE);
   1886 			}
   1887 		}
   1888 #endif
   1889 		/*
   1890 		 * Check for f/w being in ready state. If the f/w
   1891 		 * isn't in ready state, then we don't know our
   1892 		 * loop ID and the f/w hasn't completed logging
   1893 		 * into all targets on the loop. If this is the
   1894 		 * case, then bounce the command. We pretend this is
   1895 		 * a SELECTION TIMEOUT error if we've never gone to
   1896 		 * FW_READY state at all- in this case we may not
   1897 		 * be hooked to a loop at all and we shouldn't hang
   1898 		 * the machine for this. Otherwise, defer this command
   1899 		 * until later.
   1900 		 */
   1901 		if (fcp->isp_fwstate != FW_READY) {
   1902 			if (isp_fclink_test(isp, FC_FW_READY_DELAY)) {
   1903 				XS_SETERR(xs, HBA_SELTIMEOUT);
   1904 				if (fcp->loop_seen_once) {
   1905 					return (CMD_RQLATER);
   1906 				} else {
   1907 					return (CMD_COMPLETE);
   1908 				}
   1909 			}
   1910 		}
   1911 
   1912 		/*
   1913 		 * If our loop state is such that we haven't yet received
   1914 		 * a "Port Database Changed" notification (after a LIP or
   1915 		 * a Loop Reset or firmware initialization), then defer
   1916 		 * sending commands for a little while, but only if we've
   1917 		 * seen a valid loop at one point (otherwise we can get
   1918 		 * stuck at initialization time).
   1919 		 */
   1920 		if (fcp->isp_loopstate < LOOP_PDB_RCVD) {
   1921 			XS_SETERR(xs, HBA_SELTIMEOUT);
   1922 			if (fcp->loop_seen_once) {
   1923 				return (CMD_RQLATER);
   1924 			} else {
   1925 				return (CMD_COMPLETE);
   1926 			}
   1927 		}
   1928 
   1929 		/*
   1930 		 * If our loop state is now such that we've just now
   1931 		 * received a Port Database Change notification, then
   1932 		 * we have to go off and (re)synchronize our port
   1933 		 * database.
   1934 		 */
   1935 		if (fcp->isp_loopstate == LOOP_PDB_RCVD) {
   1936 			if (isp_pdb_sync(isp, target)) {
   1937 				XS_SETERR(xs, HBA_SELTIMEOUT);
   1938 				return (CMD_COMPLETE);
   1939 			}
   1940 		}
   1941 
   1942 		/*
   1943 		 * Now check whether we should even think about pursuing this.
   1944 		 */
   1945 		lp = &fcp->portdb[target];
   1946 		if (lp->valid == 0) {
   1947 			XS_SETERR(xs, HBA_SELTIMEOUT);
   1948 			return (CMD_COMPLETE);
   1949 		}
   1950 		if ((lp->roles & (SVC3_TGT_ROLE >> SVC3_ROLE_SHIFT)) == 0) {
   1951 			IDPRINTF(3, ("%s: target %d is not a target\n",
   1952 			    isp->isp_name, target));
   1953 			XS_SETERR(xs, HBA_SELTIMEOUT);
   1954 			return (CMD_COMPLETE);
   1955 		}
   1956 		/*
   1957 		 * Now turn target into what the actual loop ID is.
   1958 		 */
   1959 		target = lp->loopid;
   1960 	}
   1961 
   1962 	/*
   1963 	 * Next check to see if any HBA or Device
   1964 	 * parameters need to be updated.
   1965 	 */
   1966 	if (isp->isp_update != 0) {
   1967 		isp_update(isp);
   1968 	}
   1969 
   1970 	if (isp_getrqentry(isp, &iptr, &optr, (void **) &reqp)) {
   1971 		IDPRINTF(1, ("%s: Request Queue Overflow\n", isp->isp_name));
   1972 		XS_SETERR(xs, HBA_BOTCH);
   1973 		return (CMD_EAGAIN);
   1974 	}
   1975 
   1976 	/*
   1977 	 * Now see if we need to synchronize the ISP with respect to anything.
   1978 	 * We do dual duty here (cough) for synchronizing for busses other
   1979 	 * than which we got here to send a command to.
   1980 	 */
   1981 	if (isp->isp_sendmarker) {
   1982 		u_int8_t n = (IS_DUALBUS(isp)? 2: 1);
   1983 		/*
   1984 		 * Check ports to send markers for...
   1985 		 */
   1986 		for (i = 0; i < n; i++) {
   1987 			if ((isp->isp_sendmarker & (1 << i)) == 0) {
   1988 				continue;
   1989 			}
   1990 			MEMZERO((void *) reqp, sizeof (*reqp));
   1991 			reqp->req_header.rqs_entry_count = 1;
   1992 			reqp->req_header.rqs_entry_type = RQSTYPE_MARKER;
   1993 			reqp->req_modifier = SYNC_ALL;
   1994 			reqp->req_target = i << 7;	/* insert bus number */
   1995 			ISP_SWIZZLE_REQUEST(isp, reqp);
   1996 			MemoryBarrier();
   1997 			ISP_ADD_REQUEST(isp, iptr);
   1998 
   1999 			if (isp_getrqentry(isp, &iptr, &optr, (void **)&reqp)) {
   2000 				IDPRINTF(1, ("%s: Request Queue Overflow+\n",
   2001 				    isp->isp_name));
   2002 				XS_SETERR(xs, HBA_BOTCH);
   2003 				return (CMD_EAGAIN);
   2004 			}
   2005 		}
   2006 	}
   2007 
   2008 	MEMZERO((void *) reqp, UZSIZE);
   2009 	reqp->req_header.rqs_entry_count = 1;
   2010 	if (IS_FC(isp)) {
   2011 		reqp->req_header.rqs_entry_type = RQSTYPE_T2RQS;
   2012 	} else {
   2013 		reqp->req_header.rqs_entry_type = RQSTYPE_REQUEST;
   2014 	}
   2015 	reqp->req_header.rqs_flags = 0;
   2016 	reqp->req_header.rqs_seqno = 0;
   2017 	if (IS_FC(isp)) {
   2018 		/*
   2019 		 * See comment in isp_intr
   2020 		 */
   2021 		XS_RESID(xs) = 0;
   2022 
   2023 		/*
   2024 		 * Fibre Channel always requires some kind of tag.
   2025 		 * The Qlogic drivers seem be happy not to use a tag,
   2026 		 * but this breaks for some devices (IBM drives).
   2027 		 */
   2028 		if (XS_CANTAG(xs)) {
   2029 			t2reqp->req_flags = XS_KINDOF_TAG(xs);
   2030 		} else {
   2031 			if (XS_CDBP(xs)[0] == 0x3)	/* REQUEST SENSE */
   2032 				t2reqp->req_flags = REQFLAG_HTAG;
   2033 			else
   2034 				t2reqp->req_flags = REQFLAG_OTAG;
   2035 		}
   2036 	} else {
   2037 		sdparam *sdp = (sdparam *)isp->isp_param;
   2038 		if ((sdp->isp_devparam[target].cur_dflags & DPARM_TQING) &&
   2039 		    XS_CANTAG(xs)) {
   2040 			reqp->req_flags = XS_KINDOF_TAG(xs);
   2041 		}
   2042 	}
   2043 	reqp->req_target = target | (XS_CHANNEL(xs) << 7);
   2044 	if (IS_SCSI(isp)) {
   2045 		reqp->req_lun_trn = XS_LUN(xs);
   2046 		reqp->req_cdblen = XS_CDBLEN(xs);
   2047 	} else {
   2048 #ifdef	ISP2100_SCCLUN
   2049 		t2reqp->req_scclun = XS_LUN(xs);
   2050 #else
   2051 		t2reqp->req_lun_trn = XS_LUN(xs);
   2052 #endif
   2053 	}
   2054 	MEMCPY(reqp->req_cdb, XS_CDBP(xs), XS_CDBLEN(xs));
   2055 
   2056 	reqp->req_time = XS_TIME(xs) / 1000;
   2057 	if (reqp->req_time == 0 && XS_TIME(xs))
   2058 		reqp->req_time = 1;
   2059 
   2060 	/*
   2061 	 * Always give a bit more leeway to commands after a bus reset.
   2062 	 * XXX: DOES NOT DISTINGUISH WHICH PORT MAY HAVE BEEN SYNCED
   2063 	 */
   2064 	if (isp->isp_sendmarker && reqp->req_time < 5) {
   2065 		reqp->req_time = 5;
   2066 	}
   2067 	if (isp_save_xs(isp, xs, &reqp->req_handle)) {
   2068 		IDPRINTF(2, ("%s: out of xflist pointers\n", isp->isp_name));
   2069 		XS_SETERR(xs, HBA_BOTCH);
   2070 		return (CMD_EAGAIN);
   2071 	}
   2072 	/*
   2073 	 * Set up DMA and/or do any bus swizzling of the request entry
   2074 	 * so that the Qlogic F/W understands what is being asked of it.
   2075  	*/
   2076 	i = ISP_DMASETUP(isp, xs, reqp, &iptr, optr);
   2077 	if (i != CMD_QUEUED) {
   2078 		isp_destroy_handle(isp, reqp->req_handle);
   2079 		/*
   2080 		 * dmasetup sets actual error in packet, and
   2081 		 * return what we were given to return.
   2082 		 */
   2083 		return (i);
   2084 	}
   2085 	XS_SETERR(xs, HBA_NOERROR);
   2086 	IDPRINTF(5, ("%s(%d.%d.%d): START cmd 0x%x datalen %d\n",
   2087 	    isp->isp_name, XS_CHANNEL(xs), target, XS_LUN(xs),
   2088 	    reqp->req_cdb[0], XS_XFRLEN(xs)));
   2089 	MemoryBarrier();
   2090 	ISP_ADD_REQUEST(isp, iptr);
   2091 	isp->isp_nactive++;
   2092 	if (isp->isp_sendmarker)
   2093 		isp->isp_sendmarker = 0;
   2094 	return (CMD_QUEUED);
   2095 #undef	reqp
   2096 #undef	t2reqp
   2097 }
   2098 
   2099 /*
   2100  * isp control
   2101  * Locks (ints blocked) assumed held.
   2102  */
   2103 
   2104 int
   2105 isp_control(isp, ctl, arg)
   2106 	struct ispsoftc *isp;
   2107 	ispctl_t ctl;
   2108 	void *arg;
   2109 {
   2110 	ISP_SCSI_XFER_T *xs;
   2111 	mbreg_t mbs;
   2112 	int bus, tgt;
   2113 	u_int32_t handle;
   2114 
   2115 	switch (ctl) {
   2116 	default:
   2117 		PRINTF("%s: isp_control unknown control op %x\n",
   2118 		    isp->isp_name, ctl);
   2119 		break;
   2120 
   2121 	case ISPCTL_RESET_BUS:
   2122 		/*
   2123 		 * Issue a bus reset.
   2124 		 */
   2125 		mbs.param[0] = MBOX_BUS_RESET;
   2126 		if (IS_SCSI(isp)) {
   2127 			mbs.param[1] =
   2128 			    ((sdparam *) isp->isp_param)->isp_bus_reset_delay;
   2129 			if (mbs.param[1] < 2)
   2130 				mbs.param[1] = 2;
   2131 			bus = *((int *) arg);
   2132 			mbs.param[2] = bus;
   2133 		} else {
   2134 			mbs.param[1] = 10;
   2135 			mbs.param[2] = 0;
   2136 			bus = 0;
   2137 		}
   2138 		isp->isp_sendmarker = 1 << bus;
   2139 		isp_mboxcmd(isp, &mbs);
   2140 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
   2141 			isp_dumpregs(isp, "isp_control SCSI bus reset failed");
   2142 			break;
   2143 		}
   2144 		CFGPRINTF("%s: driver initiated bus reset of bus %d\n",
   2145 		    isp->isp_name, bus);
   2146 		return (0);
   2147 
   2148 	case ISPCTL_RESET_DEV:
   2149 		tgt = (*((int *) arg)) & 0xffff;
   2150 		bus = (*((int *) arg)) >> 16;
   2151 		mbs.param[0] = MBOX_ABORT_TARGET;
   2152 		mbs.param[1] = (tgt << 8) | (bus << 15);
   2153 		mbs.param[2] = 3;	/* 'delay', in seconds */
   2154 		isp_mboxcmd(isp, &mbs);
   2155 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
   2156 			PRINTF("%s: isp_control MBOX_RESET_DEV failure (code "
   2157 			    "%x)\n", isp->isp_name, mbs.param[0]);
   2158 			break;
   2159 		}
   2160 		PRINTF("%s: Target %d on Bus %d Reset Succeeded\n",
   2161 		    isp->isp_name, tgt, bus);
   2162 		isp->isp_sendmarker = 1 << bus;
   2163 		return (0);
   2164 
   2165 	case ISPCTL_ABORT_CMD:
   2166 		xs = (ISP_SCSI_XFER_T *) arg;
   2167 		handle = isp_find_handle(isp, xs);
   2168 		if (handle == 0) {
   2169 			PRINTF("%s: isp_control- cannot find command to abort "
   2170 			    "in active list\n", isp->isp_name);
   2171 			break;
   2172 		}
   2173 		bus = XS_CHANNEL(xs);
   2174 		mbs.param[0] = MBOX_ABORT;
   2175 		if (IS_FC(isp)) {
   2176 #ifdef	ISP2100_SCCLUN
   2177 			mbs.param[1] = XS_TGT(xs) << 8;
   2178 			mbs.param[4] = 0;
   2179 			mbs.param[5] = 0;
   2180 			mbs.param[6] = XS_LUN(xs);
   2181 #else
   2182 			mbs.param[1] = XS_TGT(xs) << 8 | XS_LUN(xs);
   2183 #endif
   2184 		} else {
   2185 			mbs.param[1] =
   2186 			    (bus << 15) | (XS_TGT(xs) << 8) | XS_LUN(xs);
   2187 		}
   2188 		mbs.param[2] = handle >> 16;
   2189 		mbs.param[3] = handle & 0xffff;
   2190 		isp_mboxcmd(isp, &mbs);
   2191 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
   2192 			PRINTF("%s: isp_control MBOX_ABORT failure (code %x)\n",
   2193 			    isp->isp_name, mbs.param[0]);
   2194 			break;
   2195 		}
   2196 		PRINTF("%s: command for target %d lun %d was aborted\n",
   2197 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2198 		return (0);
   2199 
   2200 	case ISPCTL_UPDATE_PARAMS:
   2201 		isp_update(isp);
   2202 		return (0);
   2203 
   2204 	case ISPCTL_FCLINK_TEST:
   2205 		return (isp_fclink_test(isp, FC_FW_READY_DELAY));
   2206 
   2207 	case ISPCTL_PDB_SYNC:
   2208 		return (isp_pdb_sync(isp, -1));
   2209 
   2210 #ifdef	ISP_TARGET_MODE
   2211 	case ISPCTL_TOGGLE_TMODE:
   2212 		if (IS_SCSI(isp)) {
   2213 			int ena = *(int *)arg;
   2214 			mbs.param[0] = MBOX_ENABLE_TARGET_MODE;
   2215 			mbs.param[1] = (ena)? ENABLE_TARGET_FLAG : 0;
   2216 			isp_mboxcmd(isp, &mbs);
   2217 			if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
   2218 				PRINTF("%s: cannot %sable target mode (0x%x)\n",
   2219 				    isp->isp_name, ena? "en" : "dis",
   2220 				    mbs.param[0]);
   2221 				break;
   2222 			}
   2223 		}
   2224 		return (0);
   2225 #endif
   2226 	}
   2227 	return (-1);
   2228 }
   2229 
   2230 /*
   2231  * Interrupt Service Routine(s).
   2232  *
   2233  * External (OS) framework has done the appropriate locking,
   2234  * and the locking will be held throughout this function.
   2235  */
   2236 
   2237 int
   2238 isp_intr(arg)
   2239 	void *arg;
   2240 {
   2241 	ISP_SCSI_XFER_T *complist[RESULT_QUEUE_LEN], *xs;
   2242 	struct ispsoftc *isp = arg;
   2243 	u_int16_t iptr, optr;
   2244 	u_int16_t isr, isrb, sema;
   2245 	int i, nlooked = 0, ndone = 0;
   2246 
   2247 	/*
   2248 	 * Well, if we've disabled interrupts, we may get a case where
   2249 	 * isr isn't set, but sema is. In any case, debounce isr reads.
   2250 	 */
   2251 	do {
   2252 		isr = ISP_READ(isp, BIU_ISR);
   2253 		isrb = ISP_READ(isp, BIU_ISR);
   2254 	} while (isr != isrb);
   2255 	sema = ISP_READ(isp, BIU_SEMA) & 0x1;
   2256 	IDPRINTF(5, ("%s: isp_intr isr %x sem %x\n", isp->isp_name, isr, sema));
   2257 	if (isr == 0) {
   2258 		return (0);
   2259 	}
   2260 	if (!INT_PENDING(isp, isr)) {
   2261 		IDPRINTF(4, ("%s: isp_intr isr=%x\n", isp->isp_name, isr));
   2262 		return (0);
   2263 	}
   2264 	if (isp->isp_state != ISP_RUNSTATE) {
   2265 		IDPRINTF(3, ("%s: interrupt (isr=%x,sema=%x) when not ready\n",
   2266 		    isp->isp_name, isr, sema));
   2267 		ISP_WRITE(isp, INMAILBOX5, ISP_READ(isp, OUTMAILBOX5));
   2268 		ISP_WRITE(isp, HCCR, HCCR_CMD_CLEAR_RISC_INT);
   2269 		ISP_WRITE(isp, BIU_SEMA, 0);
   2270 		ENABLE_INTS(isp);
   2271 		return (1);
   2272 	}
   2273 
   2274 	if (sema) {
   2275 		u_int16_t mbox = ISP_READ(isp, OUTMAILBOX0);
   2276 		if (mbox & 0x4000) {
   2277 			IDPRINTF(4, ("%s: Command Mbox 0x%x\n",
   2278 			    isp->isp_name, mbox));
   2279 		} else {
   2280 			u_int32_t fhandle = isp_parse_async(isp, (int) mbox);
   2281 			IDPRINTF(4, ("%s: Async Mbox 0x%x\n",
   2282 			    isp->isp_name, mbox));
   2283 			if (fhandle > 0) {
   2284 				isp_fastpost_complete(isp, fhandle);
   2285 			}
   2286 		}
   2287 		ISP_WRITE(isp, BIU_SEMA, 0);
   2288 		ISP_WRITE(isp, HCCR, HCCR_CMD_CLEAR_RISC_INT);
   2289 		ENABLE_INTS(isp);
   2290 		return (1);
   2291 	}
   2292 
   2293 	/*
   2294 	 * You *must* read OUTMAILBOX5 prior to clearing the RISC interrupt.
   2295 	 */
   2296 	optr = isp->isp_residx;
   2297 	iptr = ISP_READ(isp, OUTMAILBOX5);
   2298 	ISP_WRITE(isp, HCCR, HCCR_CMD_CLEAR_RISC_INT);
   2299 	if (optr == iptr) {
   2300 		IDPRINTF(4, ("why intr? isr %x iptr %x optr %x\n",
   2301 		    isr, optr, iptr));
   2302 	}
   2303 
   2304 	while (optr != iptr) {
   2305 		ispstatusreq_t *sp;
   2306 		u_int16_t oop;
   2307 		int buddaboom = 0;
   2308 
   2309 		sp = (ispstatusreq_t *) ISP_QUEUE_ENTRY(isp->isp_result, optr);
   2310 		oop = optr;
   2311 		optr = ISP_NXT_QENTRY(optr, RESULT_QUEUE_LEN);
   2312 		nlooked++;
   2313 		MemoryBarrier();
   2314 		/*
   2315 		 * Do any appropriate unswizzling of what the Qlogic f/w has
   2316 		 * written into memory so it makes sense to us. This is a
   2317 		 * per-platform thing.
   2318 		 */
   2319 		ISP_UNSWIZZLE_RESPONSE(isp, sp);
   2320 		if (sp->req_header.rqs_entry_type != RQSTYPE_RESPONSE) {
   2321 			if (isp_handle_other_response(isp, sp, &optr) == 0) {
   2322 				continue;
   2323 			}
   2324 			/*
   2325 			 * It really has to be a bounced request just copied
   2326 			 * from the request queue to the response queue. If
   2327 			 * not, something bad has happened.
   2328 			 */
   2329 			if (sp->req_header.rqs_entry_type != RQSTYPE_REQUEST) {
   2330 				PRINTF("%s: not RESPONSE in RESPONSE Queue "
   2331 				    "(type 0x%x) @ idx %d (next %d)\n",
   2332 				    isp->isp_name,
   2333 				    sp->req_header.rqs_entry_type, oop, optr);
   2334 				continue;
   2335 			}
   2336 			buddaboom = 1;
   2337 		}
   2338 
   2339 		if (sp->req_header.rqs_flags & 0xf) {
   2340 #define	_RQS_OFLAGS	\
   2341 	~(RQSFLAG_CONTINUATION|RQSFLAG_FULL|RQSFLAG_BADHEADER|RQSFLAG_BADPACKET)
   2342 			if (sp->req_header.rqs_flags & RQSFLAG_CONTINUATION) {
   2343 				IDPRINTF(4, ("%s: continuation segment\n",
   2344 				    isp->isp_name));
   2345 				ISP_WRITE(isp, INMAILBOX5, optr);
   2346 				continue;
   2347 			}
   2348 			if (sp->req_header.rqs_flags & RQSFLAG_FULL) {
   2349 				IDPRINTF(2, ("%s: internal queues full\n",
   2350 				    isp->isp_name));
   2351 				/*
   2352 				 * We'll synthesize a QUEUE FULL message below.
   2353 				 */
   2354 			}
   2355 			if (sp->req_header.rqs_flags & RQSFLAG_BADHEADER) {
   2356 				PRINTF("%s: bad header\n", isp->isp_name);
   2357 				buddaboom++;
   2358 			}
   2359 			if (sp->req_header.rqs_flags & RQSFLAG_BADPACKET) {
   2360 				PRINTF("%s: bad request packet\n",
   2361 				    isp->isp_name);
   2362 				buddaboom++;
   2363 			}
   2364 			if (sp->req_header.rqs_flags & _RQS_OFLAGS) {
   2365 				PRINTF("%s: unknown flags in response (0x%x)\n",
   2366 				    isp->isp_name, sp->req_header.rqs_flags);
   2367 				buddaboom++;
   2368 			}
   2369 #undef	_RQS_OFLAGS
   2370 		}
   2371 		if (sp->req_handle > isp->isp_maxcmds || sp->req_handle < 1) {
   2372 			PRINTF("%s: bad request handle %d\n", isp->isp_name,
   2373 			    sp->req_handle);
   2374 			ISP_WRITE(isp, INMAILBOX5, optr);
   2375 			continue;
   2376 		}
   2377 		xs = isp_find_xs(isp, sp->req_handle);
   2378 		if (xs == NULL) {
   2379 			PRINTF("%s: NULL xs in xflist (handle 0x%x)\n",
   2380 			    isp->isp_name, sp->req_handle);
   2381 			ISP_WRITE(isp, INMAILBOX5, optr);
   2382 			continue;
   2383 		}
   2384 		isp_destroy_handle(isp, sp->req_handle);
   2385 		if (sp->req_status_flags & RQSTF_BUS_RESET) {
   2386 			isp->isp_sendmarker |= (1 << XS_CHANNEL(xs));
   2387 		}
   2388 		if (buddaboom) {
   2389 			XS_SETERR(xs, HBA_BOTCH);
   2390 		}
   2391 		XS_STS(xs) = sp->req_scsi_status & 0xff;
   2392 		if (IS_SCSI(isp)) {
   2393 			if (sp->req_state_flags & RQSF_GOT_SENSE) {
   2394 				MEMCPY(XS_SNSP(xs), sp->req_sense_data,
   2395 					XS_SNSLEN(xs));
   2396 				XS_SNS_IS_VALID(xs);
   2397 			}
   2398 			/*
   2399 			 * A new synchronous rate was negotiated for this
   2400 			 * target. Mark state such that we'll go look up
   2401 			 * that which has changed later.
   2402 			 */
   2403 			if (sp->req_status_flags & RQSTF_NEGOTIATION) {
   2404 				sdparam *sdp = isp->isp_param;
   2405 				sdp += XS_CHANNEL(xs);
   2406 				sdp->isp_devparam[XS_TGT(xs)].dev_refresh = 1;
   2407 				isp->isp_update |= (1 << XS_CHANNEL(xs));
   2408 			}
   2409 		} else {
   2410 			if (sp->req_scsi_status & RQCS_SV) {
   2411 				int amt = min(XS_SNSLEN(xs), sp->req_sense_len);
   2412 				MEMCPY(XS_SNSP(xs), sp->req_sense_data, amt);
   2413 				XS_SNS_IS_VALID(xs);
   2414 				sp->req_state_flags |= RQSF_GOT_SENSE;
   2415 			} else if (XS_STS(xs) == SCSI_CHECK) {
   2416 				IDPRINTF(1, ("%s: check condition with no sense"
   2417 				    " data\n", isp->isp_name));
   2418 			}
   2419 		}
   2420 		if (XS_NOERR(xs) && XS_STS(xs) == SCSI_BUSY) {
   2421 			XS_SETERR(xs, HBA_TGTBSY);
   2422 		}
   2423 
   2424 		if (sp->req_header.rqs_entry_type == RQSTYPE_RESPONSE) {
   2425 			if (XS_NOERR(xs)) {
   2426 			    if (sp->req_completion_status != RQCS_COMPLETE) {
   2427 				isp_parse_status(isp, sp, xs);
   2428 			    } else {
   2429 				XS_SETERR(xs, HBA_NOERROR);
   2430 			    }
   2431 			}
   2432 		} else if (sp->req_header.rqs_entry_type == RQSTYPE_REQUEST) {
   2433 			if (sp->req_header.rqs_flags & RQSFLAG_FULL) {
   2434 				/*
   2435 				 * Force Queue Full status.
   2436 				 */
   2437 				XS_STS(xs) = SCSI_QFULL;
   2438 				XS_SETERR(xs, HBA_NOERROR);
   2439 			} else if (XS_NOERR(xs)) {
   2440 				XS_SETERR(xs, HBA_BOTCH);
   2441 			}
   2442 		} else {
   2443 			PRINTF("%s: unhandled respose queue type 0x%x\n",
   2444 			    isp->isp_name, sp->req_header.rqs_entry_type);
   2445 			if (XS_NOERR(xs)) {
   2446 				XS_SETERR(xs, HBA_BOTCH);
   2447 			}
   2448 		}
   2449 		if (IS_SCSI(isp)) {
   2450 			XS_RESID(xs) = sp->req_resid;
   2451 		} else if (sp->req_scsi_status & RQCS_RU) {
   2452 			XS_RESID(xs) = sp->req_resid;
   2453 			IDPRINTF(4, ("%s: cnt %d rsd %d\n", isp->isp_name,
   2454 				XS_XFRLEN(xs), sp->req_resid));
   2455 		}
   2456 		if (XS_XFRLEN(xs)) {
   2457 			ISP_DMAFREE(isp, xs, sp->req_handle);
   2458 		}
   2459 		/*
   2460 		 * Let the platforms cope.
   2461 		 */
   2462 #if	0
   2463 		/*
   2464 		 * XXX: If we have a check condition, but no Sense Data,
   2465 		 * XXX: mark it as an error (ARQ failed). We need to
   2466 		 * XXX: to do a more distinct job because there may
   2467 		 * XXX: cases where ARQ is disabled.
   2468 		 */
   2469 		if (XS_STS(xs) == SCSI_CHECK && !(XS_IS_SNS_VALID(xs))) {
   2470 			if (XS_NOERR(xs)) {
   2471 				PRINTF("%s: ARQ failure for target %d lun %d\n",
   2472 				    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2473 				XS_SETERR(xs, HBA_ARQFAIL);
   2474 			}
   2475 		}
   2476 #endif
   2477 		if ((isp->isp_dblev >= 5) ||
   2478 		    (isp->isp_dblev > 2 && !XS_NOERR(xs))) {
   2479 			PRINTF("%s(%d.%d): FIN dl%d resid%d STS %x",
   2480 			    isp->isp_name, XS_TGT(xs), XS_LUN(xs),
   2481 			    XS_XFRLEN(xs), XS_RESID(xs), XS_STS(xs));
   2482 			if (sp->req_state_flags & RQSF_GOT_SENSE) {
   2483 				PRINTF(" Skey: %x", XS_SNSKEY(xs));
   2484 				if (!(XS_IS_SNS_VALID(xs))) {
   2485 					PRINTF(" BUT NOT SET");
   2486 				}
   2487 			}
   2488 			PRINTF(" XS_ERR=0x%x\n", (unsigned int) XS_ERR(xs));
   2489 		}
   2490 
   2491 		if (isp->isp_nactive > 0)
   2492 		    isp->isp_nactive--;
   2493 		complist[ndone++] = xs;	/* defer completion call until later */
   2494 	}
   2495 
   2496 	/*
   2497 	 * If we looked at any commands, then it's valid to find out
   2498 	 * what the outpointer is. It also is a trigger to update the
   2499 	 * ISP's notion of what we've seen so far.
   2500 	 */
   2501 	if (nlooked) {
   2502 		ISP_WRITE(isp, INMAILBOX5, optr);
   2503 		isp->isp_reqodx = ISP_READ(isp, OUTMAILBOX4);
   2504 	}
   2505 	isp->isp_residx = optr;
   2506 	for (i = 0; i < ndone; i++) {
   2507 		xs = complist[i];
   2508 		if (xs) {
   2509 			XS_CMD_DONE(xs);
   2510 		}
   2511 	}
   2512 	ENABLE_INTS(isp);
   2513 	return (1);
   2514 }
   2515 
   2516 /*
   2517  * Support routines.
   2518  */
   2519 
   2520 static int
   2521 isp_parse_async(isp, mbox)
   2522 	struct ispsoftc *isp;
   2523 	int mbox;
   2524 {
   2525 	int bus;
   2526 	u_int32_t fast_post_handle = 0;
   2527 
   2528 	if (IS_DUALBUS(isp)) {
   2529 		bus = ISP_READ(isp, OUTMAILBOX6);
   2530 	} else {
   2531 		bus = 0;
   2532 	}
   2533 
   2534 	switch (mbox) {
   2535 	case MBOX_COMMAND_COMPLETE:	/* sometimes these show up */
   2536 		break;
   2537 	case ASYNC_BUS_RESET:
   2538 		isp->isp_sendmarker = (1 << bus);
   2539 #ifdef	ISP_TARGET_MODE
   2540 		isp_target_async(isp, bus, mbox);
   2541 #endif
   2542 		isp_async(isp, ISPASYNC_BUS_RESET, &bus);
   2543 		break;
   2544 	case ASYNC_SYSTEM_ERROR:
   2545 		mbox = ISP_READ(isp, OUTMAILBOX1);
   2546 		PRINTF("%s: Internal FW Error @ RISC Addr 0x%x\n",
   2547 		    isp->isp_name, mbox);
   2548 		isp_restart(isp);
   2549 		/* no point continuing after this */
   2550 		return (-1);
   2551 
   2552 	case ASYNC_RQS_XFER_ERR:
   2553 		PRINTF("%s: Request Queue Transfer Error\n", isp->isp_name);
   2554 		break;
   2555 
   2556 	case ASYNC_RSP_XFER_ERR:
   2557 		PRINTF("%s: Response Queue Transfer Error\n", isp->isp_name);
   2558 		break;
   2559 
   2560 	case ASYNC_QWAKEUP:
   2561 		/*
   2562 		 * We've just been notified that the Queue has woken up.
   2563 		 * We don't need to be chatty about this- just unlatch things
   2564 		 * and move on.
   2565 		 */
   2566 		mbox = ISP_READ(isp, OUTMAILBOX4);
   2567 		break;
   2568 
   2569 	case ASYNC_TIMEOUT_RESET:
   2570 		PRINTF("%s: timeout initiated SCSI bus reset of bus %d\n",
   2571 		    isp->isp_name, bus);
   2572 		isp->isp_sendmarker = (1 << bus);
   2573 #ifdef	ISP_TARGET_MODE
   2574 		isp_target_async(isp, bus, mbox);
   2575 #endif
   2576 		break;
   2577 
   2578 	case ASYNC_DEVICE_RESET:
   2579 		PRINTF("%s: device reset on bus %d\n", isp->isp_name, bus);
   2580 		isp->isp_sendmarker = 1 << bus;
   2581 #ifdef	ISP_TARGET_MODE
   2582 		isp_target_async(isp, bus, mbox);
   2583 #endif
   2584 		break;
   2585 
   2586 	case ASYNC_EXTMSG_UNDERRUN:
   2587 		PRINTF("%s: extended message underrun\n", isp->isp_name);
   2588 		break;
   2589 
   2590 	case ASYNC_SCAM_INT:
   2591 		PRINTF("%s: SCAM interrupt\n", isp->isp_name);
   2592 		break;
   2593 
   2594 	case ASYNC_HUNG_SCSI:
   2595 		PRINTF("%s: stalled SCSI Bus after DATA Overrun\n",
   2596 		    isp->isp_name);
   2597 		/* XXX: Need to issue SCSI reset at this point */
   2598 		break;
   2599 
   2600 	case ASYNC_KILLED_BUS:
   2601 		PRINTF("%s: SCSI Bus reset after DATA Overrun\n",
   2602 		    isp->isp_name);
   2603 		break;
   2604 
   2605 	case ASYNC_BUS_TRANSIT:
   2606 		mbox = ISP_READ(isp, OUTMAILBOX2);
   2607 		switch (mbox & 0x1c00) {
   2608 		case SXP_PINS_LVD_MODE:
   2609 			PRINTF("%s: Transition to LVD mode\n", isp->isp_name);
   2610 			((sdparam *)isp->isp_param)->isp_diffmode = 0;
   2611 			((sdparam *)isp->isp_param)->isp_ultramode = 0;
   2612 			((sdparam *)isp->isp_param)->isp_lvdmode = 1;
   2613 			break;
   2614 		case SXP_PINS_HVD_MODE:
   2615 			PRINTF("%s: Transition to Differential mode\n",
   2616 			    isp->isp_name);
   2617 			((sdparam *)isp->isp_param)->isp_diffmode = 1;
   2618 			((sdparam *)isp->isp_param)->isp_ultramode = 0;
   2619 			((sdparam *)isp->isp_param)->isp_lvdmode = 0;
   2620 			break;
   2621 		case SXP_PINS_SE_MODE:
   2622 			PRINTF("%s: Transition to Single Ended mode\n",
   2623 			    isp->isp_name);
   2624 			((sdparam *)isp->isp_param)->isp_diffmode = 0;
   2625 			((sdparam *)isp->isp_param)->isp_ultramode = 1;
   2626 			((sdparam *)isp->isp_param)->isp_lvdmode = 0;
   2627 			break;
   2628 		default:
   2629 			PRINTF("%s: Transition to unknown mode 0x%x\n",
   2630 			    isp->isp_name, mbox);
   2631 			break;
   2632 		}
   2633 		/*
   2634 		 * XXX: Set up to renegotiate again!
   2635 		 */
   2636 		/* Can only be for a 1080... */
   2637 		isp->isp_sendmarker = (1 << bus);
   2638 		break;
   2639 
   2640 	case ASYNC_CMD_CMPLT:
   2641 		fast_post_handle = (ISP_READ(isp, OUTMAILBOX2) << 16) |
   2642 		    ISP_READ(isp, OUTMAILBOX1);
   2643 		IDPRINTF(4, ("%s: fast post completion of %u\n", isp->isp_name,
   2644 		    fast_post_handle));
   2645 		break;
   2646 
   2647 	case ASYNC_CTIO_DONE:
   2648 		/* Should only occur when Fast Posting Set for 2100s */
   2649 		PRINTF("%s: CTIO done\n", isp->isp_name);
   2650 		break;
   2651 
   2652 	case ASYNC_LIP_OCCURRED:
   2653 		((fcparam *) isp->isp_param)->isp_lipseq =
   2654 		    ISP_READ(isp, OUTMAILBOX1);
   2655 		((fcparam *) isp->isp_param)->isp_fwstate = FW_CONFIG_WAIT;
   2656 		((fcparam *) isp->isp_param)->isp_loopstate = LOOP_LIP_RCVD;
   2657 		isp->isp_sendmarker = 1;
   2658 		isp_mark_getpdb_all(isp);
   2659 		IDPRINTF(1, ("%s: LIP occurred\n", isp->isp_name));
   2660 #ifdef	ISP_TARGET_MODE
   2661 		isp_target_async(isp, bus, mbox);
   2662 #endif
   2663 		break;
   2664 
   2665 	case ASYNC_LOOP_UP:
   2666 		isp->isp_sendmarker = 1;
   2667 		((fcparam *) isp->isp_param)->isp_fwstate = FW_CONFIG_WAIT;
   2668 		((fcparam *) isp->isp_param)->isp_loopstate = LOOP_LIP_RCVD;
   2669 		isp_mark_getpdb_all(isp);
   2670 		isp_async(isp, ISPASYNC_LOOP_UP, NULL);
   2671 #ifdef	ISP_TARGET_MODE
   2672 		isp_target_async(isp, bus, mbox);
   2673 #endif
   2674 		break;
   2675 
   2676 	case ASYNC_LOOP_DOWN:
   2677 		isp->isp_sendmarker = 1;
   2678 		((fcparam *) isp->isp_param)->isp_fwstate = FW_CONFIG_WAIT;
   2679 		((fcparam *) isp->isp_param)->isp_loopstate = LOOP_NIL;
   2680 		isp_mark_getpdb_all(isp);
   2681 		isp_async(isp, ISPASYNC_LOOP_DOWN, NULL);
   2682 #ifdef	ISP_TARGET_MODE
   2683 		isp_target_async(isp, bus, mbox);
   2684 #endif
   2685 		break;
   2686 
   2687 	case ASYNC_LOOP_RESET:
   2688 		isp->isp_sendmarker = 1 << bus;
   2689 		((fcparam *) isp->isp_param)->isp_fwstate = FW_CONFIG_WAIT;
   2690 		((fcparam *) isp->isp_param)->isp_loopstate = LOOP_NIL;
   2691 		isp_mark_getpdb_all(isp);
   2692 		PRINTF("%s: Loop RESET\n", isp->isp_name);
   2693 #ifdef	ISP_TARGET_MODE
   2694 		isp_target_async(isp, bus, mbox);
   2695 #endif
   2696 		break;
   2697 
   2698 	case ASYNC_PDB_CHANGED:
   2699 		isp->isp_sendmarker = 1;
   2700 		((fcparam *) isp->isp_param)->isp_loopstate = LOOP_PDB_RCVD;
   2701 		isp_mark_getpdb_all(isp);
   2702 		IDPRINTF(2, ("%s: Port Database Changed\n", isp->isp_name));
   2703 		break;
   2704 
   2705 	case ASYNC_CHANGE_NOTIFY:
   2706 		isp_mark_getpdb_all(isp);
   2707 		/*
   2708 		 * Not correct, but it will force us to rescan the loop.
   2709 		 */
   2710 		((fcparam *) isp->isp_param)->isp_loopstate = LOOP_PDB_RCVD;
   2711 		isp_async(isp, ISPASYNC_CHANGE_NOTIFY, NULL);
   2712 		break;
   2713 
   2714 	default:
   2715 		PRINTF("%s: unknown async code 0x%x\n", isp->isp_name, mbox);
   2716 		break;
   2717 	}
   2718 	return (fast_post_handle);
   2719 }
   2720 
   2721 /*
   2722  * Handle other response entries. A pointer to the request queue output
   2723  * index is here in case we want to eat several entries at once, although
   2724  * this is not used currently.
   2725  */
   2726 
   2727 static int
   2728 isp_handle_other_response(isp, sp, optrp)
   2729 	struct ispsoftc *isp;
   2730 	ispstatusreq_t *sp;
   2731 	u_int16_t *optrp;
   2732 {
   2733 	switch (sp->req_header.rqs_entry_type) {
   2734 	case RQSTYPE_ATIO:
   2735 	case RQSTYPE_CTIO:
   2736 	case RQSTYPE_ENABLE_LUN:
   2737 	case RQSTYPE_MODIFY_LUN:
   2738 	case RQSTYPE_NOTIFY:
   2739 	case RQSTYPE_NOTIFY_ACK:
   2740 	case RQSTYPE_CTIO1:
   2741 	case RQSTYPE_ATIO2:
   2742 	case RQSTYPE_CTIO2:
   2743 	case RQSTYPE_CTIO3:
   2744 #ifdef	ISP_TARGET_MODE
   2745 		return (isp_target_notify(isp, sp, optrp));
   2746 #else
   2747 		/* FALLTHROUGH */
   2748 #endif
   2749 	case RQSTYPE_REQUEST:
   2750 	default:
   2751 		PRINTF("%s: unhandled response type 0x%x\n", isp->isp_name,
   2752 		    sp->req_header.rqs_entry_type);
   2753 		return (-1);
   2754 	}
   2755 }
   2756 
   2757 static void
   2758 isp_parse_status(isp, sp, xs)
   2759 	struct ispsoftc *isp;
   2760 	ispstatusreq_t *sp;
   2761 	ISP_SCSI_XFER_T *xs;
   2762 {
   2763 	switch (sp->req_completion_status) {
   2764 	case RQCS_COMPLETE:
   2765 		XS_SETERR(xs, HBA_NOERROR);
   2766 		return;
   2767 
   2768 	case RQCS_INCOMPLETE:
   2769 		if ((sp->req_state_flags & RQSF_GOT_TARGET) == 0) {
   2770 			IDPRINTF(3, ("%s: Selection Timeout for target %d\n",
   2771 			    isp->isp_name, XS_TGT(xs)));
   2772 			XS_SETERR(xs, HBA_SELTIMEOUT);
   2773 			return;
   2774 		}
   2775 		PRINTF("%s: command incomplete for target %d lun %d, state "
   2776 		    "0x%x\n", isp->isp_name, XS_TGT(xs), XS_LUN(xs),
   2777 		    sp->req_state_flags);
   2778 		break;
   2779 
   2780 	case RQCS_DMA_ERROR:
   2781 		PRINTF("%s: DMA error for command on target %d, lun %d\n",
   2782 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2783 		break;
   2784 
   2785 	case RQCS_TRANSPORT_ERROR:
   2786 		PRINTF("%s: transport error\n", isp->isp_name);
   2787 		isp_prtstst(sp);
   2788 		break;
   2789 
   2790 	case RQCS_RESET_OCCURRED:
   2791 		IDPRINTF(2, ("%s: bus %d reset destroyed command for target %d "
   2792 		    "lun %d\n", isp->isp_name, XS_CHANNEL(xs), XS_TGT(xs),
   2793 		    XS_LUN(xs)));
   2794 		/*
   2795 		 * XXX: Get port number for bus
   2796 		 */
   2797 		isp->isp_sendmarker = 3;
   2798 		XS_SETERR(xs, HBA_BUSRESET);
   2799 		return;
   2800 
   2801 	case RQCS_ABORTED:
   2802 		PRINTF("%s: command aborted for target %d lun %d\n",
   2803 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2804 		/*
   2805 		 * XXX: Get port number for bus
   2806 		 */
   2807 		isp->isp_sendmarker = 3;
   2808 		XS_SETERR(xs, HBA_ABORTED);
   2809 		return;
   2810 
   2811 	case RQCS_TIMEOUT:
   2812 		IDPRINTF(2, ("%s: command timed out for target %d lun %d\n",
   2813 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs)));
   2814 		XS_SETERR(xs, HBA_CMDTIMEOUT);
   2815 		return;
   2816 
   2817 	case RQCS_DATA_OVERRUN:
   2818 		if (IS_FC(isp)) {
   2819 			XS_RESID(xs) = sp->req_resid;
   2820 			break;
   2821 		}
   2822 		XS_SETERR(xs, HBA_DATAOVR);
   2823 		return;
   2824 
   2825 	case RQCS_COMMAND_OVERRUN:
   2826 		PRINTF("%s: command overrun for command on target %d, lun %d\n",
   2827 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2828 		break;
   2829 
   2830 	case RQCS_STATUS_OVERRUN:
   2831 		PRINTF("%s: status overrun for command on target %d, lun %d\n",
   2832 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2833 		break;
   2834 
   2835 	case RQCS_BAD_MESSAGE:
   2836 		PRINTF("%s: message not COMMAND COMPLETE after status on "
   2837 		    "target %d, lun %d\n", isp->isp_name, XS_TGT(xs),
   2838 		    XS_LUN(xs));
   2839 		break;
   2840 
   2841 	case RQCS_NO_MESSAGE_OUT:
   2842 		PRINTF("%s: No MESSAGE OUT phase after selection on "
   2843 		    "target %d, lun %d\n", isp->isp_name, XS_TGT(xs),
   2844 		    XS_LUN(xs));
   2845 		break;
   2846 
   2847 	case RQCS_EXT_ID_FAILED:
   2848 		PRINTF("%s: EXTENDED IDENTIFY failed on target %d, lun %d\n",
   2849 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2850 		break;
   2851 
   2852 	case RQCS_IDE_MSG_FAILED:
   2853 		PRINTF("%s: target %d lun %d rejected INITIATOR DETECTED "
   2854 		    "ERROR message\n", isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2855 		break;
   2856 
   2857 	case RQCS_ABORT_MSG_FAILED:
   2858 		PRINTF("%s: target %d lun %d rejected ABORT message\n",
   2859 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2860 		break;
   2861 
   2862 	case RQCS_REJECT_MSG_FAILED:
   2863 		PRINTF("%s: target %d lun %d rejected MESSAGE REJECT message\n",
   2864 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2865 		break;
   2866 
   2867 	case RQCS_NOP_MSG_FAILED:
   2868 		PRINTF("%s: target %d lun %d rejected NOP message\n",
   2869 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2870 		break;
   2871 
   2872 	case RQCS_PARITY_ERROR_MSG_FAILED:
   2873 		PRINTF("%s: target %d lun %d rejected MESSAGE PARITY ERROR "
   2874 		    "message\n", isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2875 		break;
   2876 
   2877 	case RQCS_DEVICE_RESET_MSG_FAILED:
   2878 		PRINTF("%s: target %d lun %d rejected BUS DEVICE RESET "
   2879 		    "message\n", isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2880 		break;
   2881 
   2882 	case RQCS_ID_MSG_FAILED:
   2883 		PRINTF("%s: target %d lun %d rejected IDENTIFY "
   2884 		    "message\n", isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2885 		break;
   2886 
   2887 	case RQCS_UNEXP_BUS_FREE:
   2888 		PRINTF("%s: target %d lun %d had an unexpected bus free\n",
   2889 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2890 		break;
   2891 
   2892 	case RQCS_DATA_UNDERRUN:
   2893 		if (IS_FC(isp)) {
   2894 			XS_RESID(xs) = sp->req_resid;
   2895 			/* an UNDERRUN is not a botch ??? */
   2896 		}
   2897 		XS_SETERR(xs, HBA_NOERROR);
   2898 		return;
   2899 
   2900 	case RQCS_XACT_ERR1:
   2901 		PRINTF("%s: HBA attempted queued transaction with disconnect "
   2902 		    "not set for target %d lun %d\n", isp->isp_name, XS_TGT(xs),
   2903 		    XS_LUN(xs));
   2904 		break;
   2905 
   2906 	case RQCS_XACT_ERR2:
   2907 		PRINTF("%s: HBA attempted queued transaction to target "
   2908 		    "routine %d on target %d\n", isp->isp_name, XS_LUN(xs),
   2909 		    XS_TGT(xs));
   2910 		break;
   2911 
   2912 	case RQCS_XACT_ERR3:
   2913 		PRINTF("%s: HBA attempted queued transaction for target %d lun "
   2914 		    "%d when queueing disabled\n", isp->isp_name, XS_TGT(xs),
   2915 		    XS_LUN(xs));
   2916 		break;
   2917 
   2918 	case RQCS_BAD_ENTRY:
   2919 		PRINTF("%s: invalid IOCB entry type detected\n", isp->isp_name);
   2920 		break;
   2921 
   2922 	case RQCS_QUEUE_FULL:
   2923 		IDPRINTF(3, ("%s: internal queues full for target %d lun %d "
   2924 		    "status 0x%x\n", isp->isp_name, XS_TGT(xs), XS_LUN(xs),
   2925 		    XS_STS(xs)));
   2926 		/*
   2927 		 * If QFULL or some other status byte is set, then this
   2928 		 * isn't an error, per se.
   2929 		 */
   2930 		if (XS_STS(xs) != 0) {
   2931 			XS_SETERR(xs, HBA_NOERROR);
   2932 			return;
   2933 		}
   2934 		break;
   2935 
   2936 	case RQCS_PHASE_SKIPPED:
   2937 		PRINTF("%s: SCSI phase skipped (e.g., COMMAND COMPLETE w/o "
   2938 		    "STATUS phase) for target %d lun %d\n", isp->isp_name,
   2939 		    XS_TGT(xs), XS_LUN(xs));
   2940 		break;
   2941 
   2942 	case RQCS_ARQS_FAILED:
   2943 		PRINTF("%s: Auto Request Sense failed for target %d lun %d\n",
   2944 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2945 		XS_SETERR(xs, HBA_ARQFAIL);
   2946 		return;
   2947 
   2948 	case RQCS_WIDE_FAILED:
   2949 		PRINTF("%s: Wide Negotiation failed for target %d lun %d\n",
   2950 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2951 		if (IS_SCSI(isp)) {
   2952 			sdparam *sdp = isp->isp_param;
   2953 			sdp += XS_CHANNEL(xs);
   2954 			sdp->isp_devparam[XS_TGT(xs)].dev_flags &= ~DPARM_WIDE;
   2955 			sdp->isp_devparam[XS_TGT(xs)].dev_update = 1;
   2956 			isp->isp_update = XS_CHANNEL(xs)+1;
   2957 		}
   2958 		XS_SETERR(xs, HBA_NOERROR);
   2959 		return;
   2960 
   2961 	case RQCS_SYNCXFER_FAILED:
   2962 		PRINTF("%s: SDTR Message failed for target %d lun %d\n",
   2963 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2964 		if (IS_SCSI(isp)) {
   2965 			sdparam *sdp = isp->isp_param;
   2966 			sdp += XS_CHANNEL(xs);
   2967 			sdp->isp_devparam[XS_TGT(xs)].dev_flags &= ~DPARM_SYNC;
   2968 			sdp->isp_devparam[XS_TGT(xs)].dev_update = 1;
   2969 			isp->isp_update = XS_CHANNEL(xs)+1;
   2970 		}
   2971 		break;
   2972 
   2973 	case RQCS_LVD_BUSERR:
   2974 		PRINTF("%s: Bad LVD Bus condition while talking to target %d "
   2975 		    "lun %d\n", isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2976 		break;
   2977 
   2978 	case RQCS_PORT_UNAVAILABLE:
   2979 		/*
   2980 		 * No such port on the loop. Moral equivalent of SELTIMEO
   2981 		 */
   2982 		IDPRINTF(3, ("%s: Port Unavailable for target %d\n",
   2983 		    isp->isp_name, XS_TGT(xs)));
   2984 		XS_SETERR(xs, HBA_SELTIMEOUT);
   2985 		return;
   2986 
   2987 	case RQCS_PORT_LOGGED_OUT:
   2988 		/*
   2989 		 * It was there (maybe)- treat as a selection timeout.
   2990 		 */
   2991 		IDPRINTF(2, ("%s: port logout for target %d\n",
   2992 			isp->isp_name, XS_TGT(xs)));
   2993 		XS_SETERR(xs, HBA_SELTIMEOUT);
   2994 		return;
   2995 
   2996 	case RQCS_PORT_CHANGED:
   2997 		PRINTF("%s: port changed for target %d\n",
   2998 			isp->isp_name, XS_TGT(xs));
   2999 		break;
   3000 
   3001 	case RQCS_PORT_BUSY:
   3002 		PRINTF("%s: port busy for target %d\n",
   3003 			isp->isp_name, XS_TGT(xs));
   3004 		XS_SETERR(xs, HBA_TGTBSY);
   3005 		return;
   3006 
   3007 	default:
   3008 		PRINTF("%s: comp status %x\n", isp->isp_name,
   3009 		    sp->req_completion_status);
   3010 		break;
   3011 	}
   3012 	XS_SETERR(xs, HBA_BOTCH);
   3013 }
   3014 
   3015 static void
   3016 isp_fastpost_complete(isp, fph)
   3017 	struct ispsoftc *isp;
   3018 	u_int32_t fph;
   3019 {
   3020 	ISP_SCSI_XFER_T *xs;
   3021 
   3022 	if (fph < 1) {
   3023 		return;
   3024 	}
   3025 	xs = isp_find_xs(isp, fph);
   3026 	if (xs == NULL) {
   3027 		PRINTF("%s: command for fast posting handle 0x%x not found\n",
   3028 		    isp->isp_name, fph);
   3029 		return;
   3030 	}
   3031 	isp_destroy_handle(isp, fph);
   3032 
   3033 	/*
   3034 	 * Since we don't have a result queue entry item,
   3035 	 * we must believe that SCSI status is zero and
   3036 	 * that all data transferred.
   3037 	 */
   3038 	XS_RESID(xs) = 0;
   3039 	XS_STS(xs) = 0;
   3040 	if (XS_XFRLEN(xs)) {
   3041 		ISP_DMAFREE(isp, xs, fph);
   3042 	}
   3043 	XS_CMD_DONE(xs);
   3044 	if (isp->isp_nactive)
   3045 		isp->isp_nactive--;
   3046 }
   3047 
   3048 #define	HINIB(x)			((x) >> 0x4)
   3049 #define	LONIB(x)			((x)  & 0xf)
   3050 #define	MAKNIB(a, b)			(((a) << 4) | (b))
   3051 static u_int8_t mbpcnt[] = {
   3052 	MAKNIB(1, 1),	/* 0x00: MBOX_NO_OP */
   3053 	MAKNIB(5, 5),	/* 0x01: MBOX_LOAD_RAM */
   3054 	MAKNIB(2, 0),	/* 0x02: MBOX_EXEC_FIRMWARE */
   3055 	MAKNIB(5, 5),	/* 0x03: MBOX_DUMP_RAM */
   3056 	MAKNIB(3, 3),	/* 0x04: MBOX_WRITE_RAM_WORD */
   3057 	MAKNIB(2, 3),	/* 0x05: MBOX_READ_RAM_WORD */
   3058 	MAKNIB(6, 6),	/* 0x06: MBOX_MAILBOX_REG_TEST */
   3059 	MAKNIB(2, 3),	/* 0x07: MBOX_VERIFY_CHECKSUM	*/
   3060 	MAKNIB(1, 4),	/* 0x08: MBOX_ABOUT_FIRMWARE */
   3061 	MAKNIB(0, 0),	/* 0x09: */
   3062 	MAKNIB(0, 0),	/* 0x0a: */
   3063 	MAKNIB(0, 0),	/* 0x0b: */
   3064 	MAKNIB(0, 0),	/* 0x0c: */
   3065 	MAKNIB(0, 0),	/* 0x0d: */
   3066 	MAKNIB(1, 2),	/* 0x0e: MBOX_CHECK_FIRMWARE */
   3067 	MAKNIB(0, 0),	/* 0x0f: */
   3068 	MAKNIB(5, 5),	/* 0x10: MBOX_INIT_REQ_QUEUE */
   3069 	MAKNIB(6, 6),	/* 0x11: MBOX_INIT_RES_QUEUE */
   3070 	MAKNIB(4, 4),	/* 0x12: MBOX_EXECUTE_IOCB */
   3071 	MAKNIB(2, 2),	/* 0x13: MBOX_WAKE_UP	*/
   3072 	MAKNIB(1, 6),	/* 0x14: MBOX_STOP_FIRMWARE */
   3073 	MAKNIB(4, 4),	/* 0x15: MBOX_ABORT */
   3074 	MAKNIB(2, 2),	/* 0x16: MBOX_ABORT_DEVICE */
   3075 	MAKNIB(3, 3),	/* 0x17: MBOX_ABORT_TARGET */
   3076 	MAKNIB(3, 1),	/* 0x18: MBOX_BUS_RESET */
   3077 	MAKNIB(2, 3),	/* 0x19: MBOX_STOP_QUEUE */
   3078 	MAKNIB(2, 3),	/* 0x1a: MBOX_START_QUEUE */
   3079 	MAKNIB(2, 3),	/* 0x1b: MBOX_SINGLE_STEP_QUEUE */
   3080 	MAKNIB(2, 3),	/* 0x1c: MBOX_ABORT_QUEUE */
   3081 	MAKNIB(2, 4),	/* 0x1d: MBOX_GET_DEV_QUEUE_STATUS */
   3082 	MAKNIB(0, 0),	/* 0x1e: */
   3083 	MAKNIB(1, 3),	/* 0x1f: MBOX_GET_FIRMWARE_STATUS */
   3084 	MAKNIB(1, 4),	/* 0x20: MBOX_GET_INIT_SCSI_ID, MBOX_GET_LOOP_ID */
   3085 	MAKNIB(1, 3),	/* 0x21: MBOX_GET_SELECT_TIMEOUT */
   3086 	MAKNIB(1, 3),	/* 0x22: MBOX_GET_RETRY_COUNT	*/
   3087 	MAKNIB(1, 2),	/* 0x23: MBOX_GET_TAG_AGE_LIMIT */
   3088 	MAKNIB(1, 2),	/* 0x24: MBOX_GET_CLOCK_RATE */
   3089 	MAKNIB(1, 2),	/* 0x25: MBOX_GET_ACT_NEG_STATE */
   3090 	MAKNIB(1, 2),	/* 0x26: MBOX_GET_ASYNC_DATA_SETUP_TIME */
   3091 	MAKNIB(1, 3),	/* 0x27: MBOX_GET_PCI_PARAMS */
   3092 	MAKNIB(2, 4),	/* 0x28: MBOX_GET_TARGET_PARAMS */
   3093 	MAKNIB(2, 4),	/* 0x29: MBOX_GET_DEV_QUEUE_PARAMS */
   3094 	MAKNIB(1, 2),	/* 0x2a: MBOX_GET_RESET_DELAY_PARAMS */
   3095 	MAKNIB(0, 0),	/* 0x2b: */
   3096 	MAKNIB(0, 0),	/* 0x2c: */
   3097 	MAKNIB(0, 0),	/* 0x2d: */
   3098 	MAKNIB(0, 0),	/* 0x2e: */
   3099 	MAKNIB(0, 0),	/* 0x2f: */
   3100 	MAKNIB(2, 2),	/* 0x30: MBOX_SET_INIT_SCSI_ID */
   3101 	MAKNIB(2, 3),	/* 0x31: MBOX_SET_SELECT_TIMEOUT */
   3102 	MAKNIB(3, 3),	/* 0x32: MBOX_SET_RETRY_COUNT	*/
   3103 	MAKNIB(2, 2),	/* 0x33: MBOX_SET_TAG_AGE_LIMIT */
   3104 	MAKNIB(2, 2),	/* 0x34: MBOX_SET_CLOCK_RATE */
   3105 	MAKNIB(2, 2),	/* 0x35: MBOX_SET_ACT_NEG_STATE */
   3106 	MAKNIB(2, 2),	/* 0x36: MBOX_SET_ASYNC_DATA_SETUP_TIME */
   3107 	MAKNIB(3, 3),	/* 0x37: MBOX_SET_PCI_CONTROL_PARAMS */
   3108 	MAKNIB(4, 4),	/* 0x38: MBOX_SET_TARGET_PARAMS */
   3109 	MAKNIB(4, 4),	/* 0x39: MBOX_SET_DEV_QUEUE_PARAMS */
   3110 	MAKNIB(1, 2),	/* 0x3a: MBOX_SET_RESET_DELAY_PARAMS */
   3111 	MAKNIB(0, 0),	/* 0x3b: */
   3112 	MAKNIB(0, 0),	/* 0x3c: */
   3113 	MAKNIB(0, 0),	/* 0x3d: */
   3114 	MAKNIB(0, 0),	/* 0x3e: */
   3115 	MAKNIB(0, 0),	/* 0x3f: */
   3116 	MAKNIB(1, 2),	/* 0x40: MBOX_RETURN_BIOS_BLOCK_ADDR */
   3117 	MAKNIB(6, 1),	/* 0x41: MBOX_WRITE_FOUR_RAM_WORDS */
   3118 	MAKNIB(2, 3),	/* 0x42: MBOX_EXEC_BIOS_IOCB */
   3119 	MAKNIB(0, 0),	/* 0x43: */
   3120 	MAKNIB(0, 0),	/* 0x44: */
   3121 	MAKNIB(0, 0),	/* 0x45: */
   3122 	MAKNIB(0, 0),	/* 0x46: */
   3123 	MAKNIB(0, 0),	/* 0x47: */
   3124 	MAKNIB(0, 0),	/* 0x48: */
   3125 	MAKNIB(0, 0),	/* 0x49: */
   3126 	MAKNIB(2, 1),	/* 0x4a: MBOX_SET_FIRMWARE_FEATURES */
   3127 	MAKNIB(1, 2),	/* 0x4b: MBOX_GET_FIRMWARE_FEATURES */
   3128 	MAKNIB(0, 0),	/* 0x4c: */
   3129 	MAKNIB(0, 0),	/* 0x4d: */
   3130 	MAKNIB(0, 0),	/* 0x4e: */
   3131 	MAKNIB(0, 0),	/* 0x4f: */
   3132 	MAKNIB(0, 0),	/* 0x50: */
   3133 	MAKNIB(0, 0),	/* 0x51: */
   3134 	MAKNIB(0, 0),	/* 0x52: */
   3135 	MAKNIB(0, 0),	/* 0x53: */
   3136 	MAKNIB(8, 0),	/* 0x54: MBOX_EXEC_COMMAND_IOCB_A64 */
   3137 	MAKNIB(2, 1),	/* 0x55: MBOX_ENABLE_TARGET_MODE */
   3138 	MAKNIB(0, 0),	/* 0x56: */
   3139 	MAKNIB(0, 0),	/* 0x57: */
   3140 	MAKNIB(0, 0),	/* 0x58: */
   3141 	MAKNIB(0, 0),	/* 0x59: */
   3142 	MAKNIB(0, 0),	/* 0x5a: */
   3143 	MAKNIB(0, 0),	/* 0x5b: */
   3144 	MAKNIB(0, 0),	/* 0x5c: */
   3145 	MAKNIB(0, 0),	/* 0x5d: */
   3146 	MAKNIB(0, 0),	/* 0x5e: */
   3147 	MAKNIB(0, 0),	/* 0x5f: */
   3148 	MAKNIB(8, 6),	/* 0x60: MBOX_INIT_FIRMWARE */
   3149 	MAKNIB(0, 0),	/* 0x61: */
   3150 	MAKNIB(2, 1),	/* 0x62: MBOX_INIT_LIP */
   3151 	MAKNIB(8, 1),	/* 0x63: MBOX_GET_FC_AL_POSITION_MAP */
   3152 	MAKNIB(8, 1),	/* 0x64: MBOX_GET_PORT_DB */
   3153 	MAKNIB(3, 1),	/* 0x65: MBOX_CLEAR_ACA */
   3154 	MAKNIB(3, 1),	/* 0x66: MBOX_TARGET_RESET */
   3155 	MAKNIB(3, 1),	/* 0x67: MBOX_CLEAR_TASK_SET */
   3156 	MAKNIB(3, 1),	/* 0x68: MBOX_ABORT_TASK_SET */
   3157 	MAKNIB(1, 2),	/* 0x69: MBOX_GET_FW_STATE */
   3158 	MAKNIB(2, 8),	/* 0x6a: MBOX_GET_PORT_NAME */
   3159 	MAKNIB(8, 1),	/* 0x6b: MBOX_GET_LINK_STATUS */
   3160 	MAKNIB(4, 4),	/* 0x6c: MBOX_INIT_LIP_RESET */
   3161 	MAKNIB(0, 0),	/* 0x6d: */
   3162 	MAKNIB(8, 2),	/* 0x6e: MBOX_SEND_SNS */
   3163 	MAKNIB(4, 3),	/* 0x6f: MBOX_FABRIC_LOGIN */
   3164 	MAKNIB(2, 1),	/* 0x70: MBOX_SEND_CHANGE_REQUEST */
   3165 	MAKNIB(2, 1),	/* 0x71: MBOX_FABRIC_LOGOUT */
   3166 	MAKNIB(4, 1)	/* 0x72: MBOX_INIT_LIP_LOGIN */
   3167 };
   3168 #define	NMBCOM	(sizeof (mbpcnt) / sizeof (mbpcnt[0]))
   3169 
   3170 static void
   3171 isp_mboxcmd(isp, mbp)
   3172 	struct ispsoftc *isp;
   3173 	mbreg_t *mbp;
   3174 {
   3175 	int outparam, inparam;
   3176 	int loops, dld = 0;
   3177 	u_int8_t opcode;
   3178 
   3179 	if (mbp->param[0] == ISP2100_SET_PCI_PARAM) {
   3180 		opcode = mbp->param[0] = MBOX_SET_PCI_PARAMETERS;
   3181 		inparam = 4;
   3182 		outparam = 4;
   3183 		goto command_known;
   3184 	} else if (mbp->param[0] > NMBCOM) {
   3185 		PRINTF("%s: bad command %x\n", isp->isp_name, mbp->param[0]);
   3186 		return;
   3187 	}
   3188 
   3189 	opcode = mbp->param[0];
   3190 	inparam = HINIB(mbpcnt[mbp->param[0]]);
   3191 	outparam =  LONIB(mbpcnt[mbp->param[0]]);
   3192 
   3193 	if (inparam == 0 && outparam == 0) {
   3194 		PRINTF("%s: no parameters for %x\n", isp->isp_name,
   3195 			mbp->param[0]);
   3196 		return;
   3197 	}
   3198 
   3199 
   3200 	/*
   3201 	 * Check for variants
   3202 	 */
   3203 #ifdef	ISP2100_SCCLUN
   3204 	if (IS_FC(isp)) {
   3205 		switch (mbp->param[0]) {
   3206 		case MBOX_ABORT:
   3207 			inparam = 7;
   3208 			break;
   3209 		case MBOX_ABORT_DEVICE:
   3210 		case MBOX_START_QUEUE:
   3211 		case MBOX_STOP_QUEUE:
   3212 		case MBOX_SINGLE_STEP_QUEUE:
   3213 		case MBOX_ABORT_QUEUE:
   3214 		case MBOX_GET_DEV_QUEUE_STATUS:
   3215 			inparam = 3;
   3216 			break;
   3217 		case MBOX_BUS_RESET:
   3218 			inparam = 2;
   3219 			break;
   3220 		default:
   3221 			break;
   3222 		}
   3223 	}
   3224 #endif
   3225 
   3226 command_known:
   3227 
   3228 	/*
   3229 	 * Set semaphore on mailbox registers to win any races to acquire them.
   3230 	 */
   3231 	ISP_WRITE(isp, BIU_SEMA, 1);
   3232 
   3233 	/*
   3234 	 * Qlogic Errata for the ISP2100 says that there is a necessary
   3235 	 * debounce between between writing the semaphore register
   3236 	 * and reading a mailbox register. I believe we're okay here.
   3237 	 */
   3238 
   3239 	/*
   3240 	 * Make sure we can send some words.
   3241 	 * Check to see if there's an async mbox event pending.
   3242 	 */
   3243 
   3244 	loops = MBOX_DELAY_COUNT;
   3245 	while ((ISP_READ(isp, HCCR) & HCCR_HOST_INT) != 0) {
   3246 		if (ISP_READ(isp, BIU_SEMA) & 1) {
   3247 			int fph;
   3248 			u_int16_t mbox = ISP_READ(isp, OUTMAILBOX0);
   3249 			/*
   3250 			 * We have a pending MBOX async event.
   3251 			 */
   3252 			if (mbox & 0x8000) {
   3253 				fph = isp_parse_async(isp, (int) mbox);
   3254 				IDPRINTF(5, ("%s: line %d, fph %d\n",
   3255 				    isp->isp_name, __LINE__, fph));
   3256 				ISP_WRITE(isp, BIU_SEMA, 0);
   3257 				ISP_WRITE(isp, HCCR, HCCR_CMD_CLEAR_RISC_INT);
   3258 				if (fph < 0) {
   3259 					return;
   3260 				} else if (fph > 0) {
   3261 					isp_fastpost_complete(isp, fph);
   3262 				}
   3263 				SYS_DELAY(100);
   3264 				goto command_known;
   3265 			}
   3266 			/*
   3267 			 * We have a pending MBOX completion? Might be
   3268 			 * from a previous command. We can't (sometimes)
   3269 			 * just clear HOST INTERRUPT, so we'll just silently
   3270 			 * eat this here.
   3271 			 */
   3272 			if (mbox & 0x4000) {
   3273 				IDPRINTF(5, ("%s: line %d, mbox 0x%x\n",
   3274 				    isp->isp_name, __LINE__, mbox));
   3275 				ISP_WRITE(isp, BIU_SEMA, 0);
   3276 				ISP_WRITE(isp, HCCR, HCCR_CMD_CLEAR_RISC_INT);
   3277 				SYS_DELAY(100);
   3278 				goto command_known;
   3279 			}
   3280 		}
   3281 		SYS_DELAY(100);
   3282 		if (--loops < 0) {
   3283 			if (dld++ > 10) {
   3284 				PRINTF("%s: isp_mboxcmd could not get command "
   3285 				    "started\n", isp->isp_name);
   3286 				return;
   3287 			}
   3288 			ISP_WRITE(isp, BIU_SEMA, 0);
   3289 			ISP_WRITE(isp, HCCR, HCCR_CMD_CLEAR_RISC_INT);
   3290 			goto command_known;
   3291 		}
   3292 	}
   3293 
   3294 	/*
   3295 	 * Write input parameters.
   3296 	 *
   3297 	 * Special case some of the setups for the dual port SCSI cards.
   3298 	 * XXX Eventually will be fixed by converting register write/read
   3299 	 * XXX counts to bitmasks.
   3300 	 */
   3301 	if (IS_DUALBUS(isp)) {
   3302 		switch (opcode) {
   3303 		case MBOX_GET_RETRY_COUNT:
   3304 		case MBOX_SET_RETRY_COUNT:
   3305 			ISP_WRITE(isp, INMAILBOX7, mbp->param[7]);
   3306 			mbp->param[7] = 0;
   3307 			ISP_WRITE(isp, INMAILBOX6, mbp->param[6]);
   3308 			mbp->param[6] = 0;
   3309 			break;
   3310 		case MBOX_SET_ASYNC_DATA_SETUP_TIME:
   3311 		case MBOX_SET_ACT_NEG_STATE:
   3312 		case MBOX_SET_TAG_AGE_LIMIT:
   3313 		case MBOX_SET_SELECT_TIMEOUT:
   3314 			ISP_WRITE(isp, INMAILBOX2, mbp->param[2]);
   3315 			mbp->param[2] = 0;
   3316 			break;
   3317 		}
   3318 	}
   3319 
   3320 	switch (inparam) {
   3321 	case 8: ISP_WRITE(isp, INMAILBOX7, mbp->param[7]); mbp->param[7] = 0;
   3322 	case 7: ISP_WRITE(isp, INMAILBOX6, mbp->param[6]); mbp->param[6] = 0;
   3323 	case 6:
   3324 		/*
   3325 		 * The Qlogic 2100 cannot have registers 4 and 5 written to
   3326 		 * after initialization or BAD THINGS HAPPEN (tm).
   3327 		 */
   3328 		if (IS_SCSI(isp) || mbp->param[0] == MBOX_INIT_FIRMWARE)
   3329 			ISP_WRITE(isp, INMAILBOX5, mbp->param[5]);
   3330 		mbp->param[5] = 0;
   3331 	case 5:
   3332 		if (IS_SCSI(isp) || mbp->param[0] == MBOX_INIT_FIRMWARE)
   3333 			ISP_WRITE(isp, INMAILBOX4, mbp->param[4]);
   3334 		mbp->param[4] = 0;
   3335 	case 4: ISP_WRITE(isp, INMAILBOX3, mbp->param[3]); mbp->param[3] = 0;
   3336 	case 3: ISP_WRITE(isp, INMAILBOX2, mbp->param[2]); mbp->param[2] = 0;
   3337 	case 2: ISP_WRITE(isp, INMAILBOX1, mbp->param[1]); mbp->param[1] = 0;
   3338 	case 1: ISP_WRITE(isp, INMAILBOX0, mbp->param[0]); mbp->param[0] = 0;
   3339 	}
   3340 
   3341 	/*
   3342 	 * Clear RISC int condition.
   3343 	 */
   3344 	ISP_WRITE(isp, HCCR, HCCR_CMD_CLEAR_RISC_INT);
   3345 
   3346 	/*
   3347 	 * Clear semaphore on mailbox registers so that the Qlogic
   3348 	 * may update outgoing registers.
   3349 	 */
   3350 	ISP_WRITE(isp, BIU_SEMA, 0);
   3351 
   3352 	/*
   3353 	 * Set Host Interrupt condition so that RISC will pick up mailbox regs.
   3354 	 */
   3355 	ISP_WRITE(isp, HCCR, HCCR_CMD_SET_HOST_INT);
   3356 
   3357 	/*
   3358 	 * Wait until HOST INT has gone away (meaning that the Qlogic
   3359 	 * has picked up the mailbox command. Wait a long time.
   3360 	 */
   3361 	loops = MBOX_DELAY_COUNT * 5;
   3362 	while ((ISP_READ(isp, HCCR) & HCCR_CMD_CLEAR_RISC_INT) != 0) {
   3363 		SYS_DELAY(100);
   3364 		if (--loops < 0) {
   3365 			PRINTF("%s: isp_mboxcmd timeout #2\n", isp->isp_name);
   3366 			return;
   3367 		}
   3368 	}
   3369 
   3370 	/*
   3371 	 * While the Semaphore registers isn't set, wait for the Qlogic
   3372 	 * to process the mailbox command. Again- wait a long time.
   3373 	 */
   3374 	loops = MBOX_DELAY_COUNT * 5;
   3375 	while ((ISP_READ(isp, BIU_SEMA) & 1) == 0) {
   3376 		SYS_DELAY(100);
   3377 		/*
   3378 		 * Wierd- I've seen the case where the semaphore register
   3379 		 * isn't getting set- sort of a violation of the protocol..
   3380 		 */
   3381 		if (ISP_READ(isp, OUTMAILBOX0) & 0x4000)
   3382 			break;
   3383 		if (--loops < 0) {
   3384 			PRINTF("%s: isp_mboxcmd timeout #3\n", isp->isp_name);
   3385 			return;
   3386 		}
   3387 	}
   3388 
   3389 	/*
   3390 	 * Make sure that the MBOX_BUSY has gone away
   3391 	 */
   3392 	loops = MBOX_DELAY_COUNT;
   3393 	for (;;) {
   3394 		u_int16_t mbox = ISP_READ(isp, OUTMAILBOX0);
   3395 		if (mbox == MBOX_BUSY) {
   3396 			if (--loops < 0) {
   3397 				PRINTF("%s: isp_mboxcmd timeout #4\n",
   3398 				    isp->isp_name);
   3399 				return;
   3400 			}
   3401 			SYS_DELAY(100);
   3402 			continue;
   3403 		}
   3404 		/*
   3405 		 * We have a pending MBOX async event.
   3406 		 */
   3407 		if (mbox & 0x8000) {
   3408 			int fph = isp_parse_async(isp, (int) mbox);
   3409 			ISP_WRITE(isp, BIU_SEMA, 0);
   3410 			ISP_WRITE(isp, HCCR, HCCR_CMD_CLEAR_RISC_INT);
   3411 			if (fph < 0) {
   3412 				return;
   3413 			} else if (fph > 0) {
   3414 				isp_fastpost_complete(isp, fph);
   3415 			}
   3416 			SYS_DELAY(100);
   3417 			continue;
   3418 		}
   3419 		break;
   3420 	}
   3421 
   3422 	/*
   3423 	 * Pick up output parameters. Special case some of the readbacks
   3424 	 * for the dual port SCSI cards.
   3425 	 */
   3426 	if (IS_DUALBUS(isp)) {
   3427 		switch (opcode) {
   3428 		case MBOX_GET_RETRY_COUNT:
   3429 		case MBOX_SET_RETRY_COUNT:
   3430 			mbp->param[7] = ISP_READ(isp, OUTMAILBOX7);
   3431 			mbp->param[6] = ISP_READ(isp, OUTMAILBOX6);
   3432 			break;
   3433 		case MBOX_GET_TAG_AGE_LIMIT:
   3434 		case MBOX_SET_TAG_AGE_LIMIT:
   3435 		case MBOX_GET_ACT_NEG_STATE:
   3436 		case MBOX_SET_ACT_NEG_STATE:
   3437 		case MBOX_SET_ASYNC_DATA_SETUP_TIME:
   3438 		case MBOX_GET_ASYNC_DATA_SETUP_TIME:
   3439 		case MBOX_GET_RESET_DELAY_PARAMS:
   3440 		case MBOX_SET_RESET_DELAY_PARAMS:
   3441 			mbp->param[2] = ISP_READ(isp, OUTMAILBOX2);
   3442 			break;
   3443 		}
   3444 	}
   3445 
   3446 	switch (outparam) {
   3447 	case 8: mbp->param[7] = ISP_READ(isp, OUTMAILBOX7);
   3448 	case 7: mbp->param[6] = ISP_READ(isp, OUTMAILBOX6);
   3449 	case 6: mbp->param[5] = ISP_READ(isp, OUTMAILBOX5);
   3450 	case 5: mbp->param[4] = ISP_READ(isp, OUTMAILBOX4);
   3451 	case 4: mbp->param[3] = ISP_READ(isp, OUTMAILBOX3);
   3452 	case 3: mbp->param[2] = ISP_READ(isp, OUTMAILBOX2);
   3453 	case 2: mbp->param[1] = ISP_READ(isp, OUTMAILBOX1);
   3454 	case 1: mbp->param[0] = ISP_READ(isp, OUTMAILBOX0);
   3455 	}
   3456 
   3457 	/*
   3458 	 * Clear RISC int.
   3459 	 */
   3460 	ISP_WRITE(isp, HCCR, HCCR_CMD_CLEAR_RISC_INT);
   3461 
   3462 	/*
   3463 	 * Release semaphore on mailbox registers
   3464 	 */
   3465 	ISP_WRITE(isp, BIU_SEMA, 0);
   3466 
   3467 	/*
   3468 	 * Just to be chatty here...
   3469 	 */
   3470 	switch (mbp->param[0]) {
   3471 	case MBOX_COMMAND_COMPLETE:
   3472 		break;
   3473 	case MBOX_INVALID_COMMAND:
   3474 		IDPRINTF(2, ("%s: mbox cmd %x failed with INVALID_COMMAND\n",
   3475 		    isp->isp_name, opcode));
   3476 		break;
   3477 	case MBOX_HOST_INTERFACE_ERROR:
   3478 		PRINTF("%s: mbox cmd %x failed with HOST_INTERFACE_ERROR\n",
   3479 		    isp->isp_name, opcode);
   3480 		break;
   3481 	case MBOX_TEST_FAILED:
   3482 		PRINTF("%s: mbox cmd %x failed with TEST_FAILED\n",
   3483 		    isp->isp_name, opcode);
   3484 		break;
   3485 	case MBOX_COMMAND_ERROR:
   3486 		if (opcode != MBOX_ABOUT_FIRMWARE)
   3487 		    PRINTF("%s: mbox cmd %x failed with COMMAND_ERROR\n",
   3488 			isp->isp_name, opcode);
   3489 		break;
   3490 	case MBOX_COMMAND_PARAM_ERROR:
   3491 		switch (opcode) {
   3492 		case MBOX_GET_PORT_DB:
   3493 		case MBOX_GET_PORT_NAME:
   3494 		case MBOX_GET_DEV_QUEUE_PARAMS:
   3495 			break;
   3496 		default:
   3497 			PRINTF("%s: mbox cmd %x failed with "
   3498 			    "COMMAND_PARAM_ERROR\n", isp->isp_name, opcode);
   3499 		}
   3500 		break;
   3501 
   3502 	/*
   3503 	 * Be silent about these...
   3504 	 */
   3505 	case ASYNC_PDB_CHANGED:
   3506 		((fcparam *) isp->isp_param)->isp_loopstate = LOOP_PDB_RCVD;
   3507 		break;
   3508 
   3509 	case ASYNC_LIP_OCCURRED:
   3510 		((fcparam *) isp->isp_param)->isp_lipseq = mbp->param[1];
   3511 		/* FALLTHROUGH */
   3512 	case ASYNC_LOOP_UP:
   3513 		((fcparam *) isp->isp_param)->isp_fwstate = FW_CONFIG_WAIT;
   3514 		((fcparam *) isp->isp_param)->isp_loopstate = LOOP_LIP_RCVD;
   3515 		break;
   3516 
   3517 	case ASYNC_LOOP_DOWN:
   3518 	case ASYNC_LOOP_RESET:
   3519 		((fcparam *) isp->isp_param)->isp_fwstate = FW_CONFIG_WAIT;
   3520 		((fcparam *) isp->isp_param)->isp_loopstate = LOOP_NIL;
   3521 		/* FALLTHROUGH */
   3522 	case ASYNC_CHANGE_NOTIFY:
   3523 		break;
   3524 
   3525 	default:
   3526 		/*
   3527 		 * The expected return of EXEC_FIRMWARE is zero.
   3528 		 */
   3529 		if ((opcode == MBOX_EXEC_FIRMWARE && mbp->param[0] != 0) ||
   3530 		    (opcode != MBOX_EXEC_FIRMWARE)) {
   3531 			PRINTF("%s: mbox cmd %x failed with error %x\n",
   3532 				isp->isp_name, opcode, mbp->param[0]);
   3533 		}
   3534 		break;
   3535 	}
   3536 }
   3537 
   3538 void
   3539 isp_lostcmd(isp, xs)
   3540 	struct ispsoftc *isp;
   3541 	ISP_SCSI_XFER_T *xs;
   3542 {
   3543 	mbreg_t mbs;
   3544 
   3545 	mbs.param[0] = MBOX_GET_FIRMWARE_STATUS;
   3546 	isp_mboxcmd(isp, &mbs);
   3547 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
   3548 		isp_dumpregs(isp, "couldn't GET FIRMWARE STATUS");
   3549 		return;
   3550 	}
   3551 	if (mbs.param[1]) {
   3552 		PRINTF("%s: %d commands on completion queue\n",
   3553 		    isp->isp_name, mbs.param[1]);
   3554 	}
   3555 	if (XS_NULL(xs))
   3556 		return;
   3557 
   3558 	mbs.param[0] = MBOX_GET_DEV_QUEUE_STATUS;
   3559 	mbs.param[1] = (XS_TGT(xs) << 8) | XS_LUN(xs); /* XXX: WHICH BUS? */
   3560 	isp_mboxcmd(isp, &mbs);
   3561 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
   3562 		isp_dumpregs(isp, "couldn't GET DEVICE QUEUE STATUS");
   3563 		return;
   3564 	}
   3565 	PRINTF("%s: lost command for target %d lun %d, %d active of %d, "
   3566 		"Queue State: %x\n", isp->isp_name, XS_TGT(xs),
   3567 		XS_LUN(xs), mbs.param[2], mbs.param[3], mbs.param[1]);
   3568 
   3569 	isp_dumpregs(isp, "lost command");
   3570 	/*
   3571 	 * XXX: Need to try and do something to recover.
   3572 	 */
   3573 }
   3574 
   3575 static void
   3576 isp_dumpregs(isp, msg)
   3577 	struct ispsoftc *isp;
   3578 	const char *msg;
   3579 {
   3580 	PRINTF("%s: %s\n", isp->isp_name, msg);
   3581 	if (IS_SCSI(isp))
   3582 		PRINTF("    biu_conf1=%x", ISP_READ(isp, BIU_CONF1));
   3583 	else
   3584 		PRINTF("    biu_csr=%x", ISP_READ(isp, BIU2100_CSR));
   3585 	PRINTF(" biu_icr=%x biu_isr=%x biu_sema=%x ", ISP_READ(isp, BIU_ICR),
   3586 	    ISP_READ(isp, BIU_ISR), ISP_READ(isp, BIU_SEMA));
   3587 	PRINTF("risc_hccr=%x\n", ISP_READ(isp, HCCR));
   3588 
   3589 
   3590 	if (IS_SCSI(isp)) {
   3591 		ISP_WRITE(isp, HCCR, HCCR_CMD_PAUSE);
   3592 		PRINTF("    cdma_conf=%x cdma_sts=%x cdma_fifostat=%x\n",
   3593 			ISP_READ(isp, CDMA_CONF), ISP_READ(isp, CDMA_STATUS),
   3594 			ISP_READ(isp, CDMA_FIFO_STS));
   3595 		PRINTF("    ddma_conf=%x ddma_sts=%x ddma_fifostat=%x\n",
   3596 			ISP_READ(isp, DDMA_CONF), ISP_READ(isp, DDMA_STATUS),
   3597 			ISP_READ(isp, DDMA_FIFO_STS));
   3598 		PRINTF("    sxp_int=%x sxp_gross=%x sxp(scsi_ctrl)=%x\n",
   3599 			ISP_READ(isp, SXP_INTERRUPT),
   3600 			ISP_READ(isp, SXP_GROSS_ERR),
   3601 			ISP_READ(isp, SXP_PINS_CTRL));
   3602 		ISP_WRITE(isp, HCCR, HCCR_CMD_RELEASE);
   3603 	}
   3604 	PRINTF("    mbox regs: %x %x %x %x %x\n",
   3605 	    ISP_READ(isp, OUTMAILBOX0), ISP_READ(isp, OUTMAILBOX1),
   3606 	    ISP_READ(isp, OUTMAILBOX2), ISP_READ(isp, OUTMAILBOX3),
   3607 	    ISP_READ(isp, OUTMAILBOX4));
   3608 	ISP_DUMPREGS(isp);
   3609 }
   3610 
   3611 static void
   3612 isp_fw_state(isp)
   3613 	struct ispsoftc *isp;
   3614 {
   3615 	mbreg_t mbs;
   3616 	if (IS_FC(isp)) {
   3617 		int once = 0;
   3618 		fcparam *fcp = isp->isp_param;
   3619 again:
   3620 		mbs.param[0] = MBOX_GET_FW_STATE;
   3621 		isp_mboxcmd(isp, &mbs);
   3622 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
   3623 			IDPRINTF(1, ("%s: isp_fw_state 0x%x\n", isp->isp_name,
   3624 			    mbs.param[0]));
   3625 			switch (mbs.param[0]) {
   3626 			case ASYNC_PDB_CHANGED:
   3627 				if (once++ < 10) {
   3628 					goto again;
   3629 				}
   3630 				fcp->isp_fwstate = FW_CONFIG_WAIT;
   3631 				fcp->isp_loopstate = LOOP_PDB_RCVD;
   3632 				goto again;
   3633 			case ASYNC_LIP_OCCURRED:
   3634 				fcp->isp_lipseq = mbs.param[1];
   3635 				/* FALLTHROUGH */
   3636 			case ASYNC_LOOP_UP:
   3637 				fcp->isp_fwstate = FW_CONFIG_WAIT;
   3638 				fcp->isp_loopstate = LOOP_LIP_RCVD;
   3639 				if (once++ < 10) {
   3640 					goto again;
   3641 				}
   3642 				break;
   3643 			case ASYNC_LOOP_RESET:
   3644 			case ASYNC_LOOP_DOWN:
   3645 				fcp->isp_fwstate = FW_CONFIG_WAIT;
   3646 				fcp->isp_loopstate = LOOP_NIL;
   3647 				/* FALLTHROUGH */
   3648 			case ASYNC_CHANGE_NOTIFY:
   3649 				if (once++ < 10) {
   3650 					goto again;
   3651 				}
   3652 				break;
   3653 			}
   3654 			PRINTF("%s: GET FIRMWARE STATE failed (0x%x)\n",
   3655 			    isp->isp_name, mbs.param[0]);
   3656 			return;
   3657 		}
   3658 		fcp->isp_fwstate = mbs.param[1];
   3659 	}
   3660 }
   3661 
   3662 static void
   3663 isp_update(isp)
   3664 	struct ispsoftc *isp;
   3665 {
   3666 	int bus;
   3667 
   3668 	for (bus = 0; isp->isp_update != 0; bus++) {
   3669 		if (isp->isp_update & (1 << bus)) {
   3670 			isp_update_bus(isp, bus);
   3671 			isp->isp_update ^= (1 << bus);
   3672 		}
   3673 	}
   3674 }
   3675 
   3676 static void
   3677 isp_update_bus(isp, bus)
   3678 	struct ispsoftc *isp;
   3679 	int bus;
   3680 {
   3681 	int tgt;
   3682 	mbreg_t mbs;
   3683 	sdparam *sdp;
   3684 
   3685 	if (IS_FC(isp)) {
   3686 		return;
   3687 	}
   3688 
   3689 	sdp = isp->isp_param;
   3690 	sdp += bus;
   3691 
   3692 	for (tgt = 0; tgt < MAX_TARGETS; tgt++) {
   3693 		u_int16_t flags, period, offset;
   3694 		int get;
   3695 
   3696 		if (sdp->isp_devparam[tgt].dev_enable == 0) {
   3697 			IDPRINTF(1, ("%s: skipping target %d bus %d update\n",
   3698 			    isp->isp_name, tgt, bus));
   3699 			continue;
   3700 		}
   3701 
   3702 		/*
   3703 		 * If the goal is to update the status of the device,
   3704 		 * take what's in dev_flags and try and set the device
   3705 		 * toward that. Otherwise, if we're just refreshing the
   3706 		 * current device state, get the current parameters.
   3707 		 */
   3708 		if (sdp->isp_devparam[tgt].dev_update) {
   3709 			mbs.param[0] = MBOX_SET_TARGET_PARAMS;
   3710 			mbs.param[2] = sdp->isp_devparam[tgt].dev_flags;
   3711 			/*
   3712 			 * Insist that PARITY must be enabled if SYNC
   3713 			 * is enabled.
   3714 			 */
   3715 			if (mbs.param[2] & DPARM_SYNC) {
   3716 				mbs.param[2] |= DPARM_PARITY;
   3717 			}
   3718 			mbs.param[3] =
   3719 				(sdp->isp_devparam[tgt].sync_offset << 8) |
   3720 				(sdp->isp_devparam[tgt].sync_period);
   3721 			sdp->isp_devparam[tgt].dev_update = 0;
   3722 			/*
   3723 			 * A command completion later that has
   3724 			 * RQSTF_NEGOTIATION set will cause
   3725 			 * the dev_refresh/announce cycle.
   3726 			 *
   3727 			 * Note: It is really important to update our current
   3728 			 * flags with at least the state of TAG capabilities-
   3729 			 * otherwise we might try and send a tagged command
   3730 			 * when we have it all turned off. So change it here
   3731 			 * to say that current already matches goal.
   3732 			 */
   3733 			sdp->isp_devparam[tgt].cur_dflags &= ~DPARM_TQING;
   3734 			sdp->isp_devparam[tgt].cur_dflags |=
   3735 			    (sdp->isp_devparam[tgt].dev_flags & DPARM_TQING);
   3736 			sdp->isp_devparam[tgt].dev_refresh = 1;
   3737 			IDPRINTF(3, ("%s: bus %d set tgt %d flags 0x%x off 0x%x"
   3738 			    " period 0x%x\n", isp->isp_name, bus, tgt,
   3739 			    mbs.param[2], mbs.param[3] >> 8,
   3740 			    mbs.param[3] & 0xff));
   3741 			get = 0;
   3742 		} else if (sdp->isp_devparam[tgt].dev_refresh) {
   3743 			mbs.param[0] = MBOX_GET_TARGET_PARAMS;
   3744 			sdp->isp_devparam[tgt].dev_refresh = 0;
   3745 			get = 1;
   3746 		} else {
   3747 			continue;
   3748 		}
   3749 		mbs.param[1] = (bus << 15) | (tgt << 8) ;
   3750 		isp_mboxcmd(isp, &mbs);
   3751 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
   3752 			PRINTF("%s: failed to %cet SCSI parameters for "
   3753 			    "target %d\n", isp->isp_name, (get)? 'g' : 's',
   3754 			    tgt);
   3755 			continue;
   3756 		}
   3757 		if (get == 0) {
   3758 			isp->isp_sendmarker |= (1 << bus);
   3759 			continue;
   3760 		}
   3761 		flags = mbs.param[2];
   3762 		period = mbs.param[3] & 0xff;
   3763 		offset = mbs.param[3] >> 8;
   3764 		sdp->isp_devparam[tgt].cur_dflags = flags;
   3765 		sdp->isp_devparam[tgt].cur_period = period;
   3766 		sdp->isp_devparam[tgt].cur_offset = offset;
   3767 		get = (bus << 16) | tgt;
   3768 		(void) isp_async(isp, ISPASYNC_NEW_TGT_PARAMS, &get);
   3769 	}
   3770 }
   3771 
   3772 static void
   3773 isp_setdfltparm(isp, channel)
   3774 	struct ispsoftc *isp;
   3775 	int channel;
   3776 {
   3777 	int tgt;
   3778 	mbreg_t mbs;
   3779 	sdparam *sdp;
   3780 
   3781 	if (IS_FC(isp)) {
   3782 		fcparam *fcp = (fcparam *) isp->isp_param;
   3783 		fcp += channel;
   3784 		if (fcp->isp_gotdparms) {
   3785 			return;
   3786 		}
   3787 		fcp->isp_gotdparms = 1;
   3788 		fcp->isp_maxfrmlen = ICB_DFLT_FRMLEN;
   3789 		fcp->isp_maxalloc = ICB_DFLT_ALLOC;
   3790 		fcp->isp_execthrottle = ICB_DFLT_THROTTLE;
   3791 		fcp->isp_retry_delay = ICB_DFLT_RDELAY;
   3792 		fcp->isp_retry_count = ICB_DFLT_RCOUNT;
   3793 		/* Platform specific.... */
   3794 		fcp->isp_loopid = DEFAULT_LOOPID(isp);
   3795 		fcp->isp_nodewwn = DEFAULT_WWN(isp);
   3796 		fcp->isp_portwwn = 0;
   3797 		/*
   3798 		 * Now try and read NVRAM
   3799 		 */
   3800 		if ((isp->isp_confopts & (ISP_CFG_NONVRAM|ISP_CFG_OWNWWN)) ||
   3801 		    (isp_read_nvram(isp))) {
   3802 			PRINTF("%s: using Node WWN 0x%08x%08x\n",
   3803 			    isp->isp_name, (u_int32_t)(fcp->isp_nodewwn >> 32),
   3804 			    (u_int32_t)(fcp->isp_nodewwn & 0xffffffff));
   3805 		}
   3806 		return;
   3807 	}
   3808 
   3809 	sdp = (sdparam *) isp->isp_param;
   3810 	sdp += channel;
   3811 
   3812 	/*
   3813 	 * Been there, done that, got the T-shirt...
   3814 	 */
   3815 	if (sdp->isp_gotdparms) {
   3816 		return;
   3817 	}
   3818 	sdp->isp_gotdparms = 1;
   3819 
   3820 	/*
   3821 	 * If we've not been told to avoid reading NVRAM, try and read it.
   3822 	 * If we're successful reading it, we can return since NVRAM will
   3823 	 * tell us the right thing to do. Otherwise, establish some reasonable
   3824 	 * defaults.
   3825 	 */
   3826 	if ((isp->isp_confopts & ISP_CFG_NONVRAM) == 0) {
   3827 		if (isp_read_nvram(isp) == 0) {
   3828 			return;
   3829 		}
   3830 	}
   3831 
   3832 	/*
   3833 	 * Now try and see whether we have specific values for them.
   3834 	 */
   3835 	if ((isp->isp_confopts & ISP_CFG_NONVRAM) == 0) {
   3836 		mbs.param[0] = MBOX_GET_ACT_NEG_STATE;
   3837 		isp_mboxcmd(isp, &mbs);
   3838 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
   3839 			IDPRINTF(2, ("could not GET ACT NEG STATE\n"));
   3840 			sdp->isp_req_ack_active_neg = 1;
   3841 			sdp->isp_data_line_active_neg = 1;
   3842 		} else {
   3843 			sdp->isp_req_ack_active_neg =
   3844 			    (mbs.param[1+channel] >> 4) & 0x1;
   3845 			sdp->isp_data_line_active_neg =
   3846 			    (mbs.param[1+channel] >> 5) & 0x1;
   3847 		}
   3848 	} else {
   3849 		sdp->isp_req_ack_active_neg = 1;
   3850 		sdp->isp_data_line_active_neg = 1;
   3851 	}
   3852 
   3853 	IDPRINTF(3, ("%s: defaulting bus %d REQ/ACK Active Negation is %d\n",
   3854 	    isp->isp_name, channel, sdp->isp_req_ack_active_neg));
   3855 	IDPRINTF(3, ("%s: defaulting bus %d DATA Active Negation is %d\n",
   3856 	    isp->isp_name, channel, sdp->isp_data_line_active_neg));
   3857 
   3858 	/*
   3859 	 * The trick here is to establish a default for the default (honk!)
   3860 	 * state (dev_flags). Then try and get the current status from
   3861 	 * the card to fill in the current state. We don't, in fact, set
   3862 	 * the default to the SAFE default state- that's not the goal state.
   3863 	 */
   3864 	for (tgt = 0; tgt < MAX_TARGETS; tgt++) {
   3865 		sdp->isp_devparam[tgt].cur_offset = 0;
   3866 		sdp->isp_devparam[tgt].cur_period = 0;
   3867 		sdp->isp_devparam[tgt].dev_flags = DPARM_DEFAULT;
   3868 		sdp->isp_devparam[tgt].cur_dflags = 0;
   3869 		if (isp->isp_type < ISP_HA_SCSI_1040 ||
   3870 		    (isp->isp_clock && isp->isp_clock < 60)) {
   3871 			sdp->isp_devparam[tgt].sync_offset =
   3872 			    ISP_10M_SYNCPARMS >> 8;
   3873 			sdp->isp_devparam[tgt].sync_period =
   3874 			    ISP_10M_SYNCPARMS & 0xff;
   3875 		} else if (IS_ULTRA2(isp)) {
   3876 			sdp->isp_devparam[tgt].sync_offset =
   3877 			    ISP_40M_SYNCPARMS >> 8;
   3878 			sdp->isp_devparam[tgt].sync_period =
   3879 			    ISP_40M_SYNCPARMS & 0xff;
   3880 		} else {
   3881 			sdp->isp_devparam[tgt].sync_offset =
   3882 			    ISP_20M_SYNCPARMS >> 8;
   3883 			sdp->isp_devparam[tgt].sync_period =
   3884 			    ISP_20M_SYNCPARMS & 0xff;
   3885 		}
   3886 
   3887 		/*
   3888 		 * Don't get current target parameters if we've been
   3889 		 * told not to use NVRAM- it's really the same thing.
   3890 		 */
   3891 		if ((isp->isp_confopts & ISP_CFG_NONVRAM) == 0) {
   3892 
   3893 			mbs.param[0] = MBOX_GET_TARGET_PARAMS;
   3894 			mbs.param[1] = tgt << 8;
   3895 			isp_mboxcmd(isp, &mbs);
   3896 			if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
   3897 				continue;
   3898 			}
   3899 			sdp->isp_devparam[tgt].cur_dflags = mbs.param[2];
   3900 			sdp->isp_devparam[tgt].dev_flags = mbs.param[2];
   3901 			sdp->isp_devparam[tgt].cur_period = mbs.param[3] & 0xff;
   3902 			sdp->isp_devparam[tgt].cur_offset = mbs.param[3] >> 8;
   3903 
   3904 			/*
   3905 			 * The maximum period we can really see
   3906 			 * here is 100 (decimal), or 400 ns.
   3907 			 * For some unknown reason we sometimes
   3908 			 * get back wildass numbers from the
   3909 			 * boot device's parameters (alpha only).
   3910 			 */
   3911 			if ((mbs.param[3] & 0xff) <= 0x64) {
   3912 				sdp->isp_devparam[tgt].sync_period =
   3913 				    mbs.param[3] & 0xff;
   3914 				sdp->isp_devparam[tgt].sync_offset =
   3915 				    mbs.param[3] >> 8;
   3916 			}
   3917 
   3918 			/*
   3919 			 * It is not safe to run Ultra Mode with a clock < 60.
   3920 			 */
   3921 			if (((isp->isp_clock && isp->isp_clock < 60) ||
   3922 			    (isp->isp_type < ISP_HA_SCSI_1020A)) &&
   3923 			    (sdp->isp_devparam[tgt].sync_period <=
   3924 			    (ISP_20M_SYNCPARMS & 0xff))) {
   3925 				sdp->isp_devparam[tgt].sync_offset =
   3926 				    ISP_10M_SYNCPARMS >> 8;
   3927 				sdp->isp_devparam[tgt].sync_period =
   3928 				    ISP_10M_SYNCPARMS & 0xff;
   3929 			}
   3930 		}
   3931 		IDPRINTF(3, ("%s: bus %d tgt %d flags %x offset %x period %x\n",
   3932 		    isp->isp_name, channel, tgt,
   3933 		    sdp->isp_devparam[tgt].dev_flags,
   3934 		    sdp->isp_devparam[tgt].sync_period,
   3935 		    sdp->isp_devparam[tgt].sync_period));
   3936 	}
   3937 
   3938 	/*
   3939 	 * Establish default some more default parameters.
   3940 	 */
   3941 	sdp->isp_cmd_dma_burst_enable = 1;
   3942 	sdp->isp_data_dma_burst_enabl = 1;
   3943 	sdp->isp_fifo_threshold = 0;
   3944 	sdp->isp_initiator_id = 7;
   3945 	/* XXXX This is probably based upon clock XXXX */
   3946 	if (isp->isp_type >= ISP_HA_SCSI_1040) {
   3947 		sdp->isp_async_data_setup = 9;
   3948 	} else {
   3949 		sdp->isp_async_data_setup = 6;
   3950 	}
   3951 	sdp->isp_selection_timeout = 250;
   3952 	sdp->isp_max_queue_depth = MAXISPREQUEST;
   3953 	sdp->isp_tag_aging = 8;
   3954 	sdp->isp_bus_reset_delay = 3;
   3955 	sdp->isp_retry_count = 2;
   3956 	sdp->isp_retry_delay = 2;
   3957 
   3958 	for (tgt = 0; tgt < MAX_TARGETS; tgt++) {
   3959 		sdp->isp_devparam[tgt].exc_throttle = 16;
   3960 		sdp->isp_devparam[tgt].dev_enable = 1;
   3961 	}
   3962 }
   3963 
   3964 /*
   3965  * Re-initialize the ISP and complete all orphaned commands
   3966  * with a 'botched' notice. The reset/init routines should
   3967  * not disturb an already active list of commands.
   3968  *
   3969  * Locks held prior to coming here.
   3970  */
   3971 
   3972 void
   3973 isp_restart(isp)
   3974 	struct ispsoftc *isp;
   3975 {
   3976 	ISP_SCSI_XFER_T *xs;
   3977 	u_int32_t handle;
   3978 
   3979 #if	0
   3980 	isp->isp_gotdparms = 0;
   3981 #endif
   3982 	isp_reset(isp);
   3983 	if (isp->isp_state == ISP_RESETSTATE) {
   3984 		isp_init(isp);
   3985 		if (isp->isp_state == ISP_INITSTATE) {
   3986 			isp->isp_state = ISP_RUNSTATE;
   3987 		}
   3988 	}
   3989 	if (isp->isp_state != ISP_RUNSTATE) {
   3990 		PRINTF("%s: isp_restart cannot restart ISP\n", isp->isp_name);
   3991 	}
   3992 	isp->isp_nactive = 0;
   3993 
   3994 	for (handle = 1; handle <= (int) isp->isp_maxcmds; handle++) {
   3995 		xs = isp_find_xs(isp, handle);
   3996 		if (xs == NULL) {
   3997 			continue;
   3998 		}
   3999 		isp_destroy_handle(isp, handle);
   4000 		if (XS_XFRLEN(xs)) {
   4001 			ISP_DMAFREE(isp, xs, handle);
   4002 			XS_RESID(xs) = XS_XFRLEN(xs);
   4003 		} else {
   4004 			XS_RESID(xs) = 0;
   4005 		}
   4006 		XS_SETERR(xs, HBA_BUSRESET);
   4007 		XS_CMD_DONE(xs);
   4008 	}
   4009 }
   4010 
   4011 /*
   4012  * NVRAM Routines
   4013  */
   4014 
   4015 static int
   4016 isp_read_nvram(isp)
   4017 	struct ispsoftc *isp;
   4018 {
   4019 	static char *tru = "true";
   4020 	static char *not = "false";
   4021 	int i, amt;
   4022 	u_int8_t csum, minversion;
   4023 	union {
   4024 		u_int8_t _x[ISP2100_NVRAM_SIZE];
   4025 		u_int16_t _s[ISP2100_NVRAM_SIZE>>1];
   4026 	} _n;
   4027 #define	nvram_data	_n._x
   4028 #define	nvram_words	_n._s
   4029 
   4030 	if (IS_FC(isp)) {
   4031 		amt = ISP2100_NVRAM_SIZE;
   4032 		minversion = 1;
   4033 	} else if (IS_ULTRA2(isp)) {
   4034 		amt = ISP1080_NVRAM_SIZE;
   4035 		minversion = 0;
   4036 	} else {
   4037 		amt = ISP_NVRAM_SIZE;
   4038 		minversion = 2;
   4039 	}
   4040 
   4041 	/*
   4042 	 * Just read the first two words first to see if we have a valid
   4043 	 * NVRAM to continue reading the rest with.
   4044 	 */
   4045 	for (i = 0; i < 2; i++) {
   4046 		isp_rdnvram_word(isp, i, &nvram_words[i]);
   4047 	}
   4048 	if (nvram_data[0] != 'I' || nvram_data[1] != 'S' ||
   4049 	    nvram_data[2] != 'P') {
   4050 		if (isp->isp_bustype != ISP_BT_SBUS) {
   4051 			PRINTF("%s: invalid NVRAM header (%x,%x,%x,%x)\n",
   4052 			    isp->isp_name, nvram_data[0], nvram_data[1],
   4053 			    nvram_data[2], nvram_data[3]);
   4054 		}
   4055 		return (-1);
   4056 	}
   4057 	for (i = 2; i < amt>>1; i++) {
   4058 		isp_rdnvram_word(isp, i, &nvram_words[i]);
   4059 	}
   4060 	for (csum = 0, i = 0; i < amt; i++) {
   4061 		csum += nvram_data[i];
   4062 	}
   4063 	if (csum != 0) {
   4064 		PRINTF("%s: invalid NVRAM checksum\n", isp->isp_name);
   4065 		return (-1);
   4066 	}
   4067 	if (ISP_NVRAM_VERSION(nvram_data) < minversion) {
   4068 		PRINTF("%s: version %d NVRAM not understood\n", isp->isp_name,
   4069 		    ISP_NVRAM_VERSION(nvram_data));
   4070 		return (-1);
   4071 	}
   4072 
   4073 	if (IS_ULTRA2(isp)) {
   4074 		int bus;
   4075 		sdparam *sdp = (sdparam *) isp->isp_param;
   4076 		for (bus = 0; bus < (IS_DUALBUS(isp)? 2 : 1); bus++, sdp++) {
   4077 			sdp->isp_fifo_threshold =
   4078 			    ISP1080_NVRAM_FIFO_THRESHOLD(nvram_data);
   4079 
   4080 			sdp->isp_initiator_id =
   4081 			    ISP1080_NVRAM_INITIATOR_ID(nvram_data, bus);
   4082 
   4083 			sdp->isp_bus_reset_delay =
   4084 			    ISP1080_NVRAM_BUS_RESET_DELAY(nvram_data, bus);
   4085 
   4086 			sdp->isp_retry_count =
   4087 			    ISP1080_NVRAM_BUS_RETRY_COUNT(nvram_data, bus);
   4088 
   4089 			sdp->isp_retry_delay =
   4090 			    ISP1080_NVRAM_BUS_RETRY_DELAY(nvram_data, bus);
   4091 
   4092 			sdp->isp_async_data_setup =
   4093 			    ISP1080_NVRAM_ASYNC_DATA_SETUP_TIME(nvram_data,
   4094 			    bus);
   4095 
   4096 			sdp->isp_req_ack_active_neg =
   4097 			    ISP1080_NVRAM_REQ_ACK_ACTIVE_NEGATION(nvram_data,
   4098 			    bus);
   4099 
   4100 			sdp->isp_data_line_active_neg =
   4101 			    ISP1080_NVRAM_DATA_LINE_ACTIVE_NEGATION(nvram_data,
   4102 			    bus);
   4103 
   4104 			sdp->isp_data_dma_burst_enabl =
   4105 			    ISP1080_NVRAM_BURST_ENABLE(nvram_data);
   4106 
   4107 			sdp->isp_cmd_dma_burst_enable =
   4108 			    ISP1080_NVRAM_BURST_ENABLE(nvram_data);
   4109 
   4110 			sdp->isp_selection_timeout =
   4111 			    ISP1080_NVRAM_SELECTION_TIMEOUT(nvram_data, bus);
   4112 
   4113 			sdp->isp_max_queue_depth =
   4114 			     ISP1080_NVRAM_MAX_QUEUE_DEPTH(nvram_data, bus);
   4115 
   4116 			if (isp->isp_dblev >= 3) {
   4117 				PRINTF("%s: ISP1080 bus %d NVRAM values:\n",
   4118 				    isp->isp_name, bus);
   4119 				PRINTF("               Initiator ID = %d\n",
   4120 				    sdp->isp_initiator_id);
   4121 				PRINTF("             Fifo Threshold = 0x%x\n",
   4122 				    sdp->isp_fifo_threshold);
   4123 				PRINTF("            Bus Reset Delay = %d\n",
   4124 				    sdp->isp_bus_reset_delay);
   4125 				PRINTF("                Retry Count = %d\n",
   4126 				    sdp->isp_retry_count);
   4127 				PRINTF("                Retry Delay = %d\n",
   4128 				    sdp->isp_retry_delay);
   4129 				PRINTF("              Tag Age Limit = %d\n",
   4130 				    sdp->isp_tag_aging);
   4131 				PRINTF("          Selection Timeout = %d\n",
   4132 				    sdp->isp_selection_timeout);
   4133 				PRINTF("            Max Queue Depth = %d\n",
   4134 				    sdp->isp_max_queue_depth);
   4135 				PRINTF("           Async Data Setup = 0x%x\n",
   4136 				    sdp->isp_async_data_setup);
   4137 				PRINTF("    REQ/ACK Active Negation = %s\n",
   4138 				    sdp->isp_req_ack_active_neg? tru : not);
   4139 				PRINTF("  Data Line Active Negation = %s\n",
   4140 				    sdp->isp_data_line_active_neg? tru : not);
   4141 				PRINTF("       Cmd DMA Burst Enable = %s\n",
   4142 				    sdp->isp_cmd_dma_burst_enable? tru : not);
   4143 			}
   4144 			for (i = 0; i < MAX_TARGETS; i++) {
   4145 				sdp->isp_devparam[i].dev_enable =
   4146 				    ISP1080_NVRAM_TGT_DEVICE_ENABLE(nvram_data, i, bus);
   4147 				sdp->isp_devparam[i].exc_throttle =
   4148 					ISP1080_NVRAM_TGT_EXEC_THROTTLE(nvram_data, i, bus);
   4149 				sdp->isp_devparam[i].sync_offset =
   4150 					ISP1080_NVRAM_TGT_SYNC_OFFSET(nvram_data, i, bus);
   4151 				sdp->isp_devparam[i].sync_period =
   4152 					ISP1080_NVRAM_TGT_SYNC_PERIOD(nvram_data, i, bus);
   4153 				sdp->isp_devparam[i].dev_flags = 0;
   4154 				if (ISP1080_NVRAM_TGT_RENEG(nvram_data, i, bus))
   4155 					sdp->isp_devparam[i].dev_flags |= DPARM_RENEG;
   4156 				if (ISP1080_NVRAM_TGT_QFRZ(nvram_data, i, bus)) {
   4157 					PRINTF("%s: not supporting QFRZ option "
   4158 					    "for target %d bus %d\n",
   4159 					    isp->isp_name, i, bus);
   4160 				}
   4161 				sdp->isp_devparam[i].dev_flags |= DPARM_ARQ;
   4162 				if (ISP1080_NVRAM_TGT_ARQ(nvram_data, i, bus) == 0) {
   4163 					PRINTF("%s: not disabling ARQ option "
   4164 					    "for target %d bus %d\n",
   4165 					    isp->isp_name, i, bus);
   4166 				}
   4167 				if (ISP1080_NVRAM_TGT_TQING(nvram_data, i, bus))
   4168 					sdp->isp_devparam[i].dev_flags |= DPARM_TQING;
   4169 				if (ISP1080_NVRAM_TGT_SYNC(nvram_data, i, bus))
   4170 					sdp->isp_devparam[i].dev_flags |= DPARM_SYNC;
   4171 				if (ISP1080_NVRAM_TGT_WIDE(nvram_data, i, bus))
   4172 					sdp->isp_devparam[i].dev_flags |= DPARM_WIDE;
   4173 				if (ISP1080_NVRAM_TGT_PARITY(nvram_data, i, bus))
   4174 					sdp->isp_devparam[i].dev_flags |= DPARM_PARITY;
   4175 				if (ISP1080_NVRAM_TGT_DISC(nvram_data, i, bus))
   4176 					sdp->isp_devparam[i].dev_flags |= DPARM_DISC;
   4177 				sdp->isp_devparam[i].cur_dflags = 0;
   4178 				if (isp->isp_dblev >= 3) {
   4179 					PRINTF("   Target %d: Ena %d Throttle "
   4180 					    "%d Offset %d Period %d Flags "
   4181 					    "0x%x\n", i,
   4182 					    sdp->isp_devparam[i].dev_enable,
   4183 					    sdp->isp_devparam[i].exc_throttle,
   4184 					    sdp->isp_devparam[i].sync_offset,
   4185 					    sdp->isp_devparam[i].sync_period,
   4186 					    sdp->isp_devparam[i].dev_flags);
   4187 				}
   4188 			}
   4189 		}
   4190 	} else if (IS_SCSI(isp)) {
   4191 		sdparam *sdp = (sdparam *) isp->isp_param;
   4192 
   4193 		sdp->isp_fifo_threshold =
   4194 			ISP_NVRAM_FIFO_THRESHOLD(nvram_data) |
   4195 			(ISP_NVRAM_FIFO_THRESHOLD_128(nvram_data) << 2);
   4196 
   4197 		sdp->isp_initiator_id =
   4198 			ISP_NVRAM_INITIATOR_ID(nvram_data);
   4199 
   4200 		sdp->isp_bus_reset_delay =
   4201 			ISP_NVRAM_BUS_RESET_DELAY(nvram_data);
   4202 
   4203 		sdp->isp_retry_count =
   4204 			ISP_NVRAM_BUS_RETRY_COUNT(nvram_data);
   4205 
   4206 		sdp->isp_retry_delay =
   4207 			ISP_NVRAM_BUS_RETRY_DELAY(nvram_data);
   4208 
   4209 		sdp->isp_async_data_setup =
   4210 			ISP_NVRAM_ASYNC_DATA_SETUP_TIME(nvram_data);
   4211 
   4212 		if (isp->isp_type >= ISP_HA_SCSI_1040) {
   4213 			if (sdp->isp_async_data_setup < 9) {
   4214 				sdp->isp_async_data_setup = 9;
   4215 			}
   4216 		} else {
   4217 			if (sdp->isp_async_data_setup != 6) {
   4218 				sdp->isp_async_data_setup = 6;
   4219 			}
   4220 		}
   4221 
   4222 		sdp->isp_req_ack_active_neg =
   4223 			ISP_NVRAM_REQ_ACK_ACTIVE_NEGATION(nvram_data);
   4224 
   4225 		sdp->isp_data_line_active_neg =
   4226 			ISP_NVRAM_DATA_LINE_ACTIVE_NEGATION(nvram_data);
   4227 
   4228 		sdp->isp_data_dma_burst_enabl =
   4229 			ISP_NVRAM_DATA_DMA_BURST_ENABLE(nvram_data);
   4230 
   4231 		sdp->isp_cmd_dma_burst_enable =
   4232 			ISP_NVRAM_CMD_DMA_BURST_ENABLE(nvram_data);
   4233 
   4234 		sdp->isp_tag_aging =
   4235 			ISP_NVRAM_TAG_AGE_LIMIT(nvram_data);
   4236 
   4237 		sdp->isp_selection_timeout =
   4238 			ISP_NVRAM_SELECTION_TIMEOUT(nvram_data);
   4239 
   4240 		sdp->isp_max_queue_depth =
   4241 			ISP_NVRAM_MAX_QUEUE_DEPTH(nvram_data);
   4242 
   4243 		isp->isp_fast_mttr = ISP_NVRAM_FAST_MTTR_ENABLE(nvram_data);
   4244 		if (isp->isp_dblev > 2) {
   4245 			PRINTF("%s: NVRAM values:\n", isp->isp_name);
   4246 			PRINTF("             Fifo Threshold = 0x%x\n",
   4247 			    sdp->isp_fifo_threshold);
   4248 			PRINTF("            Bus Reset Delay = %d\n",
   4249 			    sdp->isp_bus_reset_delay);
   4250 			PRINTF("                Retry Count = %d\n",
   4251 			    sdp->isp_retry_count);
   4252 			PRINTF("                Retry Delay = %d\n",
   4253 			    sdp->isp_retry_delay);
   4254 			PRINTF("              Tag Age Limit = %d\n",
   4255 			    sdp->isp_tag_aging);
   4256 			PRINTF("          Selection Timeout = %d\n",
   4257 			    sdp->isp_selection_timeout);
   4258 			PRINTF("            Max Queue Depth = %d\n",
   4259 			    sdp->isp_max_queue_depth);
   4260 			PRINTF("           Async Data Setup = 0x%x\n",
   4261 			    sdp->isp_async_data_setup);
   4262 			PRINTF("    REQ/ACK Active Negation = %s\n",
   4263 			    sdp->isp_req_ack_active_neg? tru : not);
   4264 			PRINTF("  Data Line Active Negation = %s\n",
   4265 			    sdp->isp_data_line_active_neg? tru : not);
   4266 			PRINTF("      Data DMA Burst Enable = %s\n",
   4267 			    sdp->isp_data_dma_burst_enabl? tru : not);
   4268 			PRINTF("       Cmd DMA Burst Enable = %s\n",
   4269 			    sdp->isp_cmd_dma_burst_enable? tru : not);
   4270 			PRINTF("                  Fast MTTR = %s\n",
   4271 			    isp->isp_fast_mttr? tru : not);
   4272 		}
   4273 		for (i = 0; i < MAX_TARGETS; i++) {
   4274 			sdp->isp_devparam[i].dev_enable =
   4275 				ISP_NVRAM_TGT_DEVICE_ENABLE(nvram_data, i);
   4276 			sdp->isp_devparam[i].exc_throttle =
   4277 				ISP_NVRAM_TGT_EXEC_THROTTLE(nvram_data, i);
   4278 			sdp->isp_devparam[i].sync_offset =
   4279 				ISP_NVRAM_TGT_SYNC_OFFSET(nvram_data, i);
   4280 			sdp->isp_devparam[i].sync_period =
   4281 				ISP_NVRAM_TGT_SYNC_PERIOD(nvram_data, i);
   4282 
   4283 			if (isp->isp_type < ISP_HA_SCSI_1040) {
   4284 				/*
   4285 				 * If we're not ultra, we can't possibly
   4286 				 * be a shorter period than this.
   4287 				 */
   4288 				if (sdp->isp_devparam[i].sync_period < 0x19) {
   4289 					sdp->isp_devparam[i].sync_period =
   4290 					    0x19;
   4291 				}
   4292 				if (sdp->isp_devparam[i].sync_offset > 0xc) {
   4293 					sdp->isp_devparam[i].sync_offset =
   4294 					    0x0c;
   4295 				}
   4296 			} else {
   4297 				if (sdp->isp_devparam[i].sync_offset > 0x8) {
   4298 					sdp->isp_devparam[i].sync_offset = 0x8;
   4299 				}
   4300 			}
   4301 			sdp->isp_devparam[i].dev_flags = 0;
   4302 			if (ISP_NVRAM_TGT_RENEG(nvram_data, i))
   4303 				sdp->isp_devparam[i].dev_flags |= DPARM_RENEG;
   4304 			if (ISP_NVRAM_TGT_QFRZ(nvram_data, i)) {
   4305 				PRINTF("%s: not supporting QFRZ option for "
   4306 				    "target %d\n", isp->isp_name, i);
   4307 			}
   4308 			sdp->isp_devparam[i].dev_flags |= DPARM_ARQ;
   4309 			if (ISP_NVRAM_TGT_ARQ(nvram_data, i) == 0) {
   4310 				PRINTF("%s: not disabling ARQ option for "
   4311 				    "target %d\n", isp->isp_name, i);
   4312 			}
   4313 			if (ISP_NVRAM_TGT_TQING(nvram_data, i))
   4314 				sdp->isp_devparam[i].dev_flags |= DPARM_TQING;
   4315 			if (ISP_NVRAM_TGT_SYNC(nvram_data, i))
   4316 				sdp->isp_devparam[i].dev_flags |= DPARM_SYNC;
   4317 			if (ISP_NVRAM_TGT_WIDE(nvram_data, i))
   4318 				sdp->isp_devparam[i].dev_flags |= DPARM_WIDE;
   4319 			if (ISP_NVRAM_TGT_PARITY(nvram_data, i))
   4320 				sdp->isp_devparam[i].dev_flags |= DPARM_PARITY;
   4321 			if (ISP_NVRAM_TGT_DISC(nvram_data, i))
   4322 				sdp->isp_devparam[i].dev_flags |= DPARM_DISC;
   4323 			sdp->isp_devparam[i].cur_dflags = 0; /* we don't know */
   4324 			if (isp->isp_dblev > 2) {
   4325 				PRINTF("   Target %d: Enabled %d Throttle %d "
   4326 				    "Offset %d Period %d Flags 0x%x\n", i,
   4327 				    sdp->isp_devparam[i].dev_enable,
   4328 				    sdp->isp_devparam[i].exc_throttle,
   4329 				    sdp->isp_devparam[i].sync_offset,
   4330 				    sdp->isp_devparam[i].sync_period,
   4331 				    sdp->isp_devparam[i].dev_flags);
   4332 			}
   4333 		}
   4334 	} else {
   4335 		fcparam *fcp = (fcparam *) isp->isp_param;
   4336 		union {
   4337 			struct {
   4338 #if	BYTE_ORDER == BIG_ENDIAN
   4339 				u_int32_t hi32;
   4340 				u_int32_t lo32;
   4341 #else
   4342 				u_int32_t lo32;
   4343 				u_int32_t hi32;
   4344 #endif
   4345 			} wd;
   4346 			u_int64_t full64;
   4347 		} wwnstore;
   4348 
   4349 		wwnstore.full64 = ISP2100_NVRAM_NODE_NAME(nvram_data);
   4350 		/*
   4351 		 * Broken PTI cards with nothing in the top nibble. Pah.
   4352 		 */
   4353 		if ((wwnstore.wd.hi32 >> 28) == 0) {
   4354 			wwnstore.wd.hi32 |= (2 << 28);
   4355 			CFGPRINTF("%s: (corrected) Adapter WWN 0x%08x%08x\n",
   4356 			    isp->isp_name, wwnstore.wd.hi32, wwnstore.wd.lo32);
   4357 		} else {
   4358 			CFGPRINTF("%s: Adapter WWN 0x%08x%08x\n", isp->isp_name,
   4359 			    wwnstore.wd.hi32, wwnstore.wd.lo32);
   4360 		}
   4361 		fcp->isp_nodewwn = wwnstore.full64;
   4362 
   4363 		/*
   4364 		 * If the Node WWN has 2 in the top nibble, we can
   4365 		 * authoritatively construct a Port WWN by adding
   4366 		 * our unit number (plus one to make it nonzero) and
   4367 		 * putting it into bits 59..56. If the top nibble isn't
   4368 		 * 2, then we just set them identically.
   4369 		 */
   4370 		if ((fcp->isp_nodewwn >> 60) == 2) {
   4371 			fcp->isp_portwwn = fcp->isp_nodewwn |
   4372 			    (((u_int64_t)(isp->isp_unit+1)) << 56);
   4373 		} else {
   4374 			fcp->isp_portwwn = fcp->isp_nodewwn;
   4375 		}
   4376 		wwnstore.full64 = ISP2100_NVRAM_BOOT_NODE_NAME(nvram_data);
   4377 		if (wwnstore.full64 != 0) {
   4378 			PRINTF("%s: BOOT DEVICE WWN 0x%08x%08x\n",
   4379 			    isp->isp_name, wwnstore.wd.hi32, wwnstore.wd.lo32);
   4380 		}
   4381 		fcp->isp_maxalloc =
   4382 			ISP2100_NVRAM_MAXIOCBALLOCATION(nvram_data);
   4383 		fcp->isp_maxfrmlen =
   4384 			ISP2100_NVRAM_MAXFRAMELENGTH(nvram_data);
   4385 		fcp->isp_retry_delay =
   4386 			ISP2100_NVRAM_RETRY_DELAY(nvram_data);
   4387 		fcp->isp_retry_count =
   4388 			ISP2100_NVRAM_RETRY_COUNT(nvram_data);
   4389 		fcp->isp_loopid =
   4390 			ISP2100_NVRAM_HARDLOOPID(nvram_data);
   4391 		fcp->isp_execthrottle =
   4392 			ISP2100_NVRAM_EXECUTION_THROTTLE(nvram_data);
   4393 		fcp->isp_fwoptions = ISP2100_NVRAM_OPTIONS(nvram_data);
   4394 		if (isp->isp_dblev > 2) {
   4395 			PRINTF("%s: NVRAM values:\n", isp->isp_name);
   4396 			PRINTF("  Max IOCB Allocation = %d\n",
   4397 			    fcp->isp_maxalloc);
   4398 			PRINTF("     Max Frame Length = %d\n",
   4399 			    fcp->isp_maxfrmlen);
   4400 			PRINTF("   Execution Throttle = %d\n",
   4401 			    fcp->isp_execthrottle);
   4402 			PRINTF("          Retry Count = %d\n",
   4403 			    fcp->isp_retry_count);
   4404 			PRINTF("          Retry Delay = %d\n",
   4405 			    fcp->isp_retry_delay);
   4406 			PRINTF("         Hard Loop ID = %d\n",
   4407 			    fcp->isp_loopid);
   4408 			PRINTF("              Options = 0x%x\n",
   4409 			    fcp->isp_fwoptions);
   4410 			PRINTF("          HBA Options = 0x%x\n",
   4411 			    ISP2100_NVRAM_HBA_OPTIONS(nvram_data));
   4412 		}
   4413 	}
   4414 	IDPRINTF(3, ("%s: NVRAM is valid\n", isp->isp_name));
   4415 	return (0);
   4416 }
   4417 
   4418 static void
   4419 isp_rdnvram_word(isp, wo, rp)
   4420 	struct ispsoftc *isp;
   4421 	int wo;
   4422 	u_int16_t *rp;
   4423 {
   4424 	int i, cbits;
   4425 	u_int16_t bit, rqst;
   4426 
   4427 	ISP_WRITE(isp, BIU_NVRAM, BIU_NVRAM_SELECT);
   4428 	SYS_DELAY(2);
   4429 	ISP_WRITE(isp, BIU_NVRAM, BIU_NVRAM_SELECT|BIU_NVRAM_CLOCK);
   4430 	SYS_DELAY(2);
   4431 
   4432 	if (IS_FC(isp)) {
   4433 		wo &= ((ISP2100_NVRAM_SIZE >> 1) - 1);
   4434 		rqst = (ISP_NVRAM_READ << 8) | wo;
   4435 		cbits = 10;
   4436 	} else if (IS_ULTRA2(isp)) {
   4437 		wo &= ((ISP1080_NVRAM_SIZE >> 1) - 1);
   4438 		rqst = (ISP_NVRAM_READ << 8) | wo;
   4439 		cbits = 10;
   4440 	} else {
   4441 		wo &= ((ISP_NVRAM_SIZE >> 1) - 1);
   4442 		rqst = (ISP_NVRAM_READ << 6) | wo;
   4443 		cbits = 8;
   4444 	}
   4445 
   4446 	/*
   4447 	 * Clock the word select request out...
   4448 	 */
   4449 	for (i = cbits; i >= 0; i--) {
   4450 		if ((rqst >> i) & 1) {
   4451 			bit = BIU_NVRAM_SELECT | BIU_NVRAM_DATAOUT;
   4452 		} else {
   4453 			bit = BIU_NVRAM_SELECT;
   4454 		}
   4455 		ISP_WRITE(isp, BIU_NVRAM, bit);
   4456 		SYS_DELAY(2);
   4457 		ISP_WRITE(isp, BIU_NVRAM, bit | BIU_NVRAM_CLOCK);
   4458 		SYS_DELAY(2);
   4459 		ISP_WRITE(isp, BIU_NVRAM, bit);
   4460 		SYS_DELAY(2);
   4461 	}
   4462 	/*
   4463 	 * Now read the result back in (bits come back in MSB format).
   4464 	 */
   4465 	*rp = 0;
   4466 	for (i = 0; i < 16; i++) {
   4467 		u_int16_t rv;
   4468 		*rp <<= 1;
   4469 		ISP_WRITE(isp, BIU_NVRAM, BIU_NVRAM_SELECT|BIU_NVRAM_CLOCK);
   4470 		SYS_DELAY(2);
   4471 		rv = ISP_READ(isp, BIU_NVRAM);
   4472 		if (rv & BIU_NVRAM_DATAIN) {
   4473 			*rp |= 1;
   4474 		}
   4475 		SYS_DELAY(2);
   4476 		ISP_WRITE(isp, BIU_NVRAM, BIU_NVRAM_SELECT);
   4477 		SYS_DELAY(2);
   4478 	}
   4479 	ISP_WRITE(isp, BIU_NVRAM, 0);
   4480 	SYS_DELAY(2);
   4481 #if	BYTE_ORDER == BIG_ENDIAN
   4482 	*rp = ((*rp >> 8) | ((*rp & 0xff) << 8));
   4483 #endif
   4484 }
   4485