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isp.c revision 1.34
      1 /* $NetBSD: isp.c,v 1.34 1999/03/26 22:39:44 mjacob Exp $ */
      2 /* release_03_25_99 */
      3 /*
      4  * Machine and OS Independent (well, as best as possible)
      5  * code for the Qlogic ISP SCSI adapters.
      6  *
      7  * Copyright (c) 1997, 1998 by Matthew Jacob
      8  * NASA/Ames Research Center
      9  * All rights reserved.
     10  *
     11  * Redistribution and use in source and binary forms, with or without
     12  * modification, are permitted provided that the following conditions
     13  * are met:
     14  * 1. Redistributions of source code must retain the above copyright
     15  *    notice immediately at the beginning of the file, without modification,
     16  *    this list of conditions, and the following disclaimer.
     17  * 2. Redistributions in binary form must reproduce the above copyright
     18  *    notice, this list of conditions and the following disclaimer in the
     19  *    documentation and/or other materials provided with the distribution.
     20  * 3. The name of the author may not be used to endorse or promote products
     21  *    derived from this software without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     26  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
     27  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     33  * SUCH DAMAGE.
     34  */
     35 
     36 /*
     37  * Inspiration and ideas about this driver are from Erik Moe's Linux driver
     38  * (qlogicisp.c) and Dave Miller's SBus version of same (qlogicisp.c). Some
     39  * ideas dredged from the Solaris driver.
     40  */
     41 
     42 /*
     43  * Include header file appropriate for platform we're building on.
     44  */
     45 
     46 #ifdef	__NetBSD__
     47 #include <dev/ic/isp_netbsd.h>
     48 #endif
     49 #ifdef	__FreeBSD__
     50 #include <dev/isp/isp_freebsd.h>
     51 #endif
     52 #ifdef	__OpenBSD__
     53 #include <dev/ic/isp_openbsd.h>
     54 #endif
     55 #ifdef	__linux__
     56 #include "isp_linux.h"
     57 #endif
     58 
     59 /*
     60  * General defines
     61  */
     62 
     63 #define	MBOX_DELAY_COUNT	1000000 / 100
     64 
     65 /*
     66  * Local static data
     67  */
     68 #ifdef	ISP_TARGET_MODE
     69 static const char tgtiqd[36] = {
     70 	0x03, 0x00, 0x02, 0x02, 0x00, 0x00, 0x00, 0x00,
     71 	0x51, 0x4C, 0x4F, 0x47, 0x49, 0x43, 0x20, 0x20,
     72 #ifdef	__NetBSD__
     73 	0x4E, 0x45, 0x54, 0x42, 0x53, 0x44, 0x20, 0x20,
     74 #else
     75 # ifdef	__FreeBSD__
     76 	0x46, 0x52, 0x45, 0x45, 0x42, 0x52, 0x44, 0x20,
     77 # else
     78 #  ifdef __OpenBSD__
     79 	0x4F, 0x50, 0x45, 0x4E, 0x42, 0x52, 0x44, 0x20,
     80 #  else
     81 #   ifdef linux
     82 	0x4C, 0x49, 0x4E, 0x55, 0x58, 0x20, 0x20, 0x20,
     83 #   else
     84 #   endif
     85 #  endif
     86 # endif
     87 #endif
     88 	0x54, 0x41, 0x52, 0x47, 0x45, 0x54, 0x20, 0x20,
     89 	0x20, 0x20, 0x20, 0x31
     90 };
     91 #endif
     92 
     93 
     94 /*
     95  * Local function prototypes.
     96  */
     97 static int isp_parse_async __P((struct ispsoftc *, int));
     98 static int isp_handle_other_response
     99 __P((struct ispsoftc *, ispstatusreq_t *, u_int8_t *));
    100 #ifdef	ISP_TARGET_MODE
    101 static int isp_modify_lun __P((struct ispsoftc *, int, int, int));
    102 static void isp_notify_ack __P((struct ispsoftc *, void *));
    103 static void isp_handle_atio __P((struct ispsoftc *, void *));
    104 static void isp_handle_atio2 __P((struct ispsoftc *, void *));
    105 static void isp_handle_ctio __P((struct ispsoftc *, void *));
    106 static void isp_handle_ctio2 __P((struct ispsoftc *, void *));
    107 #endif
    108 static void isp_parse_status
    109 __P((struct ispsoftc *, ispstatusreq_t *, ISP_SCSI_XFER_T *));
    110 static void isp_fastpost_complete __P((struct ispsoftc *, int));
    111 static void isp_fibre_init __P((struct ispsoftc *));
    112 static void isp_mark_getpdb_all __P((struct ispsoftc *));
    113 static int isp_getpdb __P((struct ispsoftc *, int, isp_pdb_t *));
    114 static int isp_fclink_test __P((struct ispsoftc *, int));
    115 static void isp_fw_state __P((struct ispsoftc *));
    116 static void isp_dumpregs __P((struct ispsoftc *, const char *));
    117 static void isp_dumpxflist __P((struct ispsoftc *));
    118 static void isp_mboxcmd __P((struct ispsoftc *, mbreg_t *));
    119 
    120 static void isp_update  __P((struct ispsoftc *));
    121 static void isp_setdfltparm __P((struct ispsoftc *));
    122 static int isp_read_nvram __P((struct ispsoftc *));
    123 static void isp_rdnvram_word __P((struct ispsoftc *, int, u_int16_t *));
    124 
    125 /*
    126  * Reset Hardware.
    127  *
    128  * Hit the chip over the head, download new f/w and set it running.
    129  *
    130  * Locking done elsewhere.
    131  */
    132 void
    133 isp_reset(isp)
    134 	struct ispsoftc *isp;
    135 {
    136 	mbreg_t mbs;
    137 	int loops, i, dodnld = 1;
    138 	char *revname;
    139 
    140 	isp->isp_state = ISP_NILSTATE;
    141 
    142 	/*
    143 	 * Basic types (SCSI, FibreChannel and PCI or SBus)
    144 	 * have been set in the MD code. We figure out more
    145 	 * here.
    146 	 */
    147 	isp->isp_dblev = DFLT_DBLEVEL;
    148 
    149 	/*
    150 	 * After we've fired this chip up, zero out the conf1 register
    151 	 * for SCSI adapters and other settings for the 2100.
    152 	 */
    153 
    154 	/*
    155 	 * Get the current running firmware revision out of the
    156 	 * chip before we hit it over the head (if this is our
    157 	 * first time through). Note that we store this as the
    158 	 * 'ROM' firmware revision- which it may not be. In any
    159 	 * case, we don't really use this yet, but we may in
    160 	 * the future.
    161 	 */
    162 	if (isp->isp_used == 0) {
    163 		/*
    164 		 * Just in case it was paused...
    165 		 */
    166 		ISP_WRITE(isp, HCCR, HCCR_CMD_RELEASE);
    167 		mbs.param[0] = MBOX_ABOUT_FIRMWARE;
    168 		isp_mboxcmd(isp, &mbs);
    169 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    170 			/*
    171 			 * If this fails, it probably means we're running
    172 			 * an old prom, if anything at all...
    173 			 */
    174 			isp->isp_romfw_rev = 0;
    175 		} else {
    176 			isp->isp_romfw_rev =
    177 			    (((u_int16_t) mbs.param[1]) << 10) + mbs.param[2];
    178 		}
    179 		isp->isp_used = 1;
    180 	}
    181 
    182 	/*
    183 	 * Put it into PAUSE mode.
    184 	 */
    185 	ISP_WRITE(isp, HCCR, HCCR_CMD_PAUSE);
    186 
    187 	if (IS_FC(isp)) {
    188 		revname = "2100";
    189 	} else if (IS_1080(isp)) {
    190 		u_int16_t l;
    191 		sdparam *sdp = isp->isp_param;
    192 		revname = "1080";
    193 		sdp->isp_clock = 100;
    194 		l = ISP_READ(isp, SXP_PINS_DIFF) & ISP1080_MODE_MASK;
    195 		switch (l) {
    196 		case ISP1080_LVD_MODE:
    197 			sdp->isp_lvdmode = 1;
    198 			PRINTF("%s: LVD Mode\n", isp->isp_name);
    199 			break;
    200 		case ISP1080_HVD_MODE:
    201 			sdp->isp_diffmode = 1;
    202 			PRINTF("%s: Differential Mode\n", isp->isp_name);
    203 			break;
    204 		case ISP1080_SE_MODE:
    205 			sdp->isp_ultramode = 1;
    206 			PRINTF("%s: Single-Ended Mode\n", isp->isp_name);
    207 			break;
    208 		default:
    209 			/*
    210 			 * Hmm. Up in a wierd mode. This means all SCSI I/O
    211 			 * buffer lines are tristated, so we're in a lot of
    212 			 * trouble if we don't set things up right.
    213 			 */
    214 			PRINTF("%s: Illegal Mode 0x%x\n", isp->isp_name, l);
    215 			break;
    216 		}
    217 	} else {
    218 		sdparam *sdp = isp->isp_param;
    219 		i = ISP_READ(isp, BIU_CONF0) & BIU_CONF0_HW_MASK;
    220 		switch (i) {
    221 		default:
    222 			PRINTF("%s: unknown chip rev. 0x%x- assuming a 1020\n",
    223 			    isp->isp_name, i);
    224 			/* FALLTHROUGH */
    225 		case 1:
    226 			revname = "1020";
    227 			isp->isp_type = ISP_HA_SCSI_1020;
    228 			sdp->isp_clock = 40;
    229 			break;
    230 		case 2:
    231 			/*
    232 			 * Some 1020A chips are Ultra Capable, but don't
    233 			 * run the clock rate up for that unless told to
    234 			 * do so by the Ultra Capable bits being set.
    235 			 */
    236 			revname = "1020A";
    237 			isp->isp_type = ISP_HA_SCSI_1020A;
    238 			sdp->isp_clock = 40;
    239 			break;
    240 		case 3:
    241 			revname = "1040";
    242 			isp->isp_type = ISP_HA_SCSI_1040;
    243 			sdp->isp_clock = 60;
    244 			break;
    245 		case 4:
    246 			revname = "1040A";
    247 			isp->isp_type = ISP_HA_SCSI_1040A;
    248 			sdp->isp_clock = 60;
    249 			break;
    250 		case 5:
    251 			revname = "1040B";
    252 			isp->isp_type = ISP_HA_SCSI_1040B;
    253 			sdp->isp_clock = 60;
    254 			break;
    255 		}
    256 		/*
    257 		 * Now, while we're at it, gather info about ultra
    258 		 * and/or differential mode.
    259 		 */
    260 		if (ISP_READ(isp, SXP_PINS_DIFF) & SXP_PINS_DIFF_MODE) {
    261 			PRINTF("%s: Differential Mode\n", isp->isp_name);
    262 			sdp->isp_diffmode = 1;
    263 		} else {
    264 			sdp->isp_diffmode = 0;
    265 		}
    266 		i = ISP_READ(isp, RISC_PSR);
    267 		if (isp->isp_bustype == ISP_BT_SBUS) {
    268 			i &= RISC_PSR_SBUS_ULTRA;
    269 		} else {
    270 			i &= RISC_PSR_PCI_ULTRA;
    271 		}
    272 		if (i != 0) {
    273 			PRINTF("%s: Ultra Mode Capable\n", isp->isp_name);
    274 			sdp->isp_ultramode = 1;
    275 			/*
    276 			 * If we're in Ultra Mode, we have to be 60Mhz clock-
    277 			 * even for the SBus version.
    278 			 */
    279 			sdp->isp_clock = 60;
    280 		} else {
    281 			sdp->isp_ultramode = 0;
    282 			/*
    283 			 * Clock is known. Gronk.
    284 			 */
    285 		}
    286 
    287 		/*
    288 		 * Machine dependent clock (if set) overrides
    289 		 * our generic determinations.
    290 		 */
    291 		if (isp->isp_mdvec->dv_clock) {
    292 			if (isp->isp_mdvec->dv_clock < sdp->isp_clock) {
    293 				sdp->isp_clock = isp->isp_mdvec->dv_clock;
    294 			}
    295 		}
    296 
    297 	}
    298 
    299 	/*
    300 	 * Do MD specific pre initialization
    301 	 */
    302 	ISP_RESET0(isp);
    303 
    304 again:
    305 
    306 	/*
    307 	 * Hit the chip over the head with hammer,
    308 	 * and give the ISP a chance to recover.
    309 	 */
    310 
    311 	if (IS_SCSI(isp)) {
    312 		ISP_WRITE(isp, BIU_ICR, BIU_ICR_SOFT_RESET);
    313 		/*
    314 		 * A slight delay...
    315 		 */
    316 		SYS_DELAY(100);
    317 
    318 #if	0
    319 		PRINTF("%s: mbox0-5: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n",
    320 		    isp->isp_name, ISP_READ(isp, OUTMAILBOX0),
    321 		    ISP_READ(isp, OUTMAILBOX1), ISP_READ(isp, OUTMAILBOX2),
    322 		    ISP_READ(isp, OUTMAILBOX3), ISP_READ(isp, OUTMAILBOX4),
    323 		    ISP_READ(isp, OUTMAILBOX5));
    324 #endif
    325 
    326 		/*
    327 		 * Clear data && control DMA engines.
    328 		 */
    329 		ISP_WRITE(isp, CDMA_CONTROL,
    330 		    DMA_CNTRL_CLEAR_CHAN | DMA_CNTRL_RESET_INT);
    331 		ISP_WRITE(isp, DDMA_CONTROL,
    332 		    DMA_CNTRL_CLEAR_CHAN | DMA_CNTRL_RESET_INT);
    333 
    334 
    335 	} else {
    336 		ISP_WRITE(isp, BIU2100_CSR, BIU2100_SOFT_RESET);
    337 		/*
    338 		 * A slight delay...
    339 		 */
    340 		SYS_DELAY(100);
    341 
    342 		/*
    343 		 * Clear data && control DMA engines.
    344 		 */
    345 		ISP_WRITE(isp, CDMA2100_CONTROL,
    346 			DMA_CNTRL2100_CLEAR_CHAN | DMA_CNTRL2100_RESET_INT);
    347 		ISP_WRITE(isp, TDMA2100_CONTROL,
    348 			DMA_CNTRL2100_CLEAR_CHAN | DMA_CNTRL2100_RESET_INT);
    349 		ISP_WRITE(isp, RDMA2100_CONTROL,
    350 			DMA_CNTRL2100_CLEAR_CHAN | DMA_CNTRL2100_RESET_INT);
    351 	}
    352 
    353 	/*
    354 	 * Wait for ISP to be ready to go...
    355 	 */
    356 	loops = MBOX_DELAY_COUNT;
    357 	for (;;) {
    358 		if (isp->isp_type & ISP_HA_SCSI) {
    359 			if (!(ISP_READ(isp, BIU_ICR) & BIU_ICR_SOFT_RESET))
    360 				break;
    361 		} else {
    362 			if (!(ISP_READ(isp, BIU2100_CSR) & BIU2100_SOFT_RESET))
    363 				break;
    364 		}
    365 		SYS_DELAY(100);
    366 		if (--loops < 0) {
    367 			isp_dumpregs(isp, "chip reset timed out");
    368 			return;
    369 		}
    370 	}
    371 
    372 	/*
    373 	 * After we've fired this chip up, zero out the conf1 register
    374 	 * for SCSI adapters and other settings for the 2100.
    375 	 */
    376 
    377 	if (IS_SCSI(isp)) {
    378 		ISP_WRITE(isp, BIU_CONF1, 0);
    379 	} else {
    380 		ISP_WRITE(isp, BIU2100_CSR, 0);
    381 	}
    382 
    383 	/*
    384 	 * Reset RISC Processor
    385 	 */
    386 	ISP_WRITE(isp, HCCR, HCCR_CMD_RESET);
    387 	SYS_DELAY(100);
    388 
    389 	/*
    390 	 * Establish some initial burst rate stuff.
    391 	 * (only for the 1XX0 boards). This really should
    392 	 * be done later after fetching from NVRAM.
    393 	 */
    394 	if (IS_SCSI(isp)) {
    395 		u_int16_t tmp = isp->isp_mdvec->dv_conf1;
    396 		/*
    397 		 * Busted FIFO. Turn off all but burst enables.
    398 		 */
    399 		if (isp->isp_type == ISP_HA_SCSI_1040A) {
    400 			tmp &= BIU_BURST_ENABLE;
    401 		}
    402 		ISP_SETBITS(isp, BIU_CONF1, tmp);
    403 		if (tmp & BIU_BURST_ENABLE) {
    404 			ISP_SETBITS(isp, CDMA_CONF, DMA_ENABLE_BURST);
    405 			ISP_SETBITS(isp, DDMA_CONF, DMA_ENABLE_BURST);
    406 		}
    407 #ifdef	PTI_CARDS
    408 		if (((sdparam *) isp->isp_param)->isp_ultramode) {
    409 			while (ISP_READ(isp, RISC_MTR) != 0x1313) {
    410 				ISP_WRITE(isp, RISC_MTR, 0x1313);
    411 				ISP_WRITE(isp, HCCR, HCCR_CMD_STEP);
    412 			}
    413 		} else {
    414 			ISP_WRITE(isp, RISC_MTR, 0x1212);
    415 		}
    416 		/*
    417 		 * PTI specific register
    418 		 */
    419 		ISP_WRITE(isp, RISC_EMB, DUAL_BANK)
    420 #else
    421 		ISP_WRITE(isp, RISC_MTR, 0x1212);
    422 #endif
    423 	} else {
    424 		ISP_WRITE(isp, RISC_MTR2100, 0x1212);
    425 	}
    426 
    427 	ISP_WRITE(isp, HCCR, HCCR_CMD_RELEASE); /* release paused processor */
    428 
    429 	/*
    430 	 * Do MD specific post initialization
    431 	 */
    432 	ISP_RESET1(isp);
    433 
    434 	/*
    435 	 * Enable interrupts
    436 	 */
    437 	ENABLE_INTS(isp);
    438 
    439 	/*
    440 	 * Wait for everything to finish firing up...
    441 	 */
    442 	loops = MBOX_DELAY_COUNT;
    443 	while (ISP_READ(isp, OUTMAILBOX0) == MBOX_BUSY) {
    444 		SYS_DELAY(100);
    445 		if (--loops < 0) {
    446 			PRINTF("%s: MBOX_BUSY never cleared on reset\n",
    447 			    isp->isp_name);
    448 			return;
    449 		}
    450 	}
    451 
    452 	/*
    453 	 * Up until this point we've done everything by just reading or
    454 	 * setting registers. From this point on we rely on at least *some*
    455 	 * kind of firmware running in the card.
    456 	 */
    457 
    458 	/*
    459 	 * Do some sanity checking.
    460 	 */
    461 	mbs.param[0] = MBOX_NO_OP;
    462 	isp_mboxcmd(isp, &mbs);
    463 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    464 		isp_dumpregs(isp, "NOP test failed");
    465 		return;
    466 	}
    467 
    468 	if (isp->isp_type & ISP_HA_SCSI) {
    469 		mbs.param[0] = MBOX_MAILBOX_REG_TEST;
    470 		mbs.param[1] = 0xdead;
    471 		mbs.param[2] = 0xbeef;
    472 		mbs.param[3] = 0xffff;
    473 		mbs.param[4] = 0x1111;
    474 		mbs.param[5] = 0xa5a5;
    475 		isp_mboxcmd(isp, &mbs);
    476 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    477 			isp_dumpregs(isp,
    478 				"Mailbox Register test didn't complete");
    479 			return;
    480 		}
    481 		if (mbs.param[1] != 0xdead || mbs.param[2] != 0xbeef ||
    482 		    mbs.param[3] != 0xffff || mbs.param[4] != 0x1111 ||
    483 		    mbs.param[5] != 0xa5a5) {
    484 			isp_dumpregs(isp, "Register Test Failed");
    485 			return;
    486 		}
    487 
    488 	}
    489 
    490 	/*
    491 	 * Download new Firmware, unless requested not to do so.
    492 	 * This is made slightly trickier in some cases where the
    493 	 * firmware of the ROM revision is newer than the revision
    494 	 * compiled into the driver. So, where we used to compare
    495 	 * versions of our f/w and the ROM f/w, now we just see
    496 	 * whether we have f/w at all and whether a config flag
    497 	 * has disabled our download.
    498 	 */
    499 	if ((isp->isp_mdvec->dv_fwlen == 0) ||
    500 	    (isp->isp_confopts & ISP_CFG_NORELOAD)) {
    501 		dodnld = 0;
    502 	}
    503 
    504 	if (dodnld && isp->isp_mdvec->dv_fwlen) {
    505 		for (i = 0; i < isp->isp_mdvec->dv_fwlen; i++) {
    506 			mbs.param[0] = MBOX_WRITE_RAM_WORD;
    507 			mbs.param[1] = isp->isp_mdvec->dv_codeorg + i;
    508 			mbs.param[2] = isp->isp_mdvec->dv_ispfw[i];
    509 			isp_mboxcmd(isp, &mbs);
    510 			if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    511 				PRINTF("%s: F/W download failed at word %d\n",
    512 				    isp->isp_name, i);
    513 				dodnld = 0;
    514 				goto again;
    515 			}
    516 		}
    517 
    518 		/*
    519 		 * Verify that it downloaded correctly.
    520 		 */
    521 		mbs.param[0] = MBOX_VERIFY_CHECKSUM;
    522 		mbs.param[1] = isp->isp_mdvec->dv_codeorg;
    523 		isp_mboxcmd(isp, &mbs);
    524 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    525 			isp_dumpregs(isp, "ram checksum failure");
    526 			return;
    527 		}
    528 	} else {
    529 		IDPRINTF(3, ("%s: skipping f/w download\n", isp->isp_name));
    530 	}
    531 
    532 	/*
    533 	 * Now start it rolling.
    534 	 *
    535 	 * If we didn't actually download f/w,
    536 	 * we still need to (re)start it.
    537 	 */
    538 
    539 	mbs.param[0] = MBOX_EXEC_FIRMWARE;
    540 	if (isp->isp_mdvec->dv_codeorg)
    541 		mbs.param[1] = isp->isp_mdvec->dv_codeorg;
    542 	else
    543 		mbs.param[1] = 0x1000;
    544 	isp_mboxcmd(isp, &mbs);
    545 
    546 	if (isp->isp_type & ISP_HA_SCSI) {
    547 		sdparam *sdp = isp->isp_param;
    548 		/*
    549 		 * Set CLOCK RATE, but only if asked to.
    550 		 */
    551 		if (sdp->isp_clock) {
    552 			mbs.param[0] = MBOX_SET_CLOCK_RATE;
    553 			mbs.param[1] = sdp->isp_clock;
    554 			isp_mboxcmd(isp, &mbs);
    555 			if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    556 				isp_dumpregs(isp, "failed to set CLOCKRATE");
    557 				/* but continue */
    558 			} else {
    559 				IDPRINTF(3, ("%s: setting input clock to %d\n",
    560 				    isp->isp_name, sdp->isp_clock));
    561 			}
    562 		}
    563 	}
    564 	mbs.param[0] = MBOX_ABOUT_FIRMWARE;
    565 	isp_mboxcmd(isp, &mbs);
    566 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    567 		isp_dumpregs(isp, "ABOUT FIRMWARE command failed");
    568 		return;
    569 	}
    570 	PRINTF("%s: Board Revision %s, %s F/W Revision %d.%d\n",
    571 		isp->isp_name, revname, dodnld? "loaded" : "resident",
    572 		mbs.param[1], mbs.param[2]);
    573 	if (IS_FC(isp)) {
    574 		if (ISP_READ(isp, BIU2100_CSR) & BIU2100_PCI64) {
    575 			PRINTF("%s: in 64-Bit PCI slot\n", isp->isp_name);
    576 		}
    577 	}
    578 	isp->isp_fwrev = (((u_int16_t) mbs.param[1]) << 10) + mbs.param[2];
    579 	if (isp->isp_romfw_rev && dodnld) {
    580 		PRINTF("%s: Last F/W revision was %d.%d\n", isp->isp_name,
    581 		    isp->isp_romfw_rev >> 10, isp->isp_romfw_rev & 0x3ff);
    582 	}
    583 	isp_fw_state(isp);
    584 	isp->isp_state = ISP_RESETSTATE;
    585 }
    586 
    587 /*
    588  * Initialize Parameters of Hardware to a known state.
    589  *
    590  * Locks are held before coming here.
    591  */
    592 
    593 void
    594 isp_init(isp)
    595 	struct ispsoftc *isp;
    596 {
    597 	sdparam *sdp;
    598 	mbreg_t mbs;
    599 	int tgt;
    600 
    601 	/*
    602 	 * Must do first.
    603 	 */
    604 	isp_setdfltparm(isp);
    605 
    606 	/*
    607 	 * Set up DMA for the request and result mailboxes.
    608 	 */
    609 	if (ISP_MBOXDMASETUP(isp) != 0) {
    610 		PRINTF("%s: can't setup dma mailboxes\n", isp->isp_name);
    611 		return;
    612 	}
    613 
    614 	/*
    615 	 * If we're fibre, we have a completely different
    616 	 * initialization method.
    617 	 */
    618 	if (IS_FC(isp)) {
    619 		isp_fibre_init(isp);
    620 		return;
    621 	}
    622 	sdp = isp->isp_param;
    623 
    624 	/*
    625 	 * If we have fast memory timing enabled, turn it on.
    626 	 */
    627 	if (sdp->isp_fast_mttr) {
    628 		ISP_WRITE(isp, RISC_MTR, 0x1313);
    629 	}
    630 
    631 	/*
    632 	 * Set (possibly new) Initiator ID.
    633 	 */
    634 	mbs.param[0] = MBOX_SET_INIT_SCSI_ID;
    635 	mbs.param[1] = sdp->isp_initiator_id;
    636 	isp_mboxcmd(isp, &mbs);
    637 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    638 		isp_dumpregs(isp, "failed to set initiator id");
    639 		return;
    640 	}
    641 
    642 	/*
    643 	 * Set Retry Delay and Count
    644 	 */
    645 	mbs.param[0] = MBOX_SET_RETRY_COUNT;
    646 	mbs.param[1] = sdp->isp_retry_count;
    647 	mbs.param[2] = sdp->isp_retry_delay;
    648 	isp_mboxcmd(isp, &mbs);
    649 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    650 		isp_dumpregs(isp, "failed to set retry count and delay");
    651 		return;
    652 	}
    653 
    654 	/*
    655 	 * Set ASYNC DATA SETUP time. This is very important.
    656 	 */
    657 	mbs.param[0] = MBOX_SET_ASYNC_DATA_SETUP_TIME;
    658 	mbs.param[1] = sdp->isp_async_data_setup;
    659 	isp_mboxcmd(isp, &mbs);
    660 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    661 		isp_dumpregs(isp, "failed to set async data setup time");
    662 		return;
    663 	}
    664 
    665 	/*
    666 	 * Set ACTIVE Negation State.
    667 	 */
    668 	mbs.param[0] = MBOX_SET_ACTIVE_NEG_STATE;
    669 	mbs.param[1] =
    670 	    (sdp->isp_req_ack_active_neg << 4) |
    671 	    (sdp->isp_data_line_active_neg << 5);
    672 	isp_mboxcmd(isp, &mbs);
    673 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    674 		isp_dumpregs(isp, "failed to set active neg state");
    675 		return;
    676 	}
    677 
    678 	/*
    679 	 * Set the Tag Aging limit
    680 	 */
    681 
    682 	mbs.param[0] = MBOX_SET_TAG_AGE_LIMIT;
    683 	mbs.param[1] = sdp->isp_tag_aging;
    684 	isp_mboxcmd(isp, &mbs);
    685 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    686 		isp_dumpregs(isp, "failed to set tag age limit");
    687 		return;
    688 	}
    689 
    690 	/*
    691 	 * Set selection timeout.
    692 	 */
    693 
    694 	mbs.param[0] = MBOX_SET_SELECT_TIMEOUT;
    695 	mbs.param[1] = sdp->isp_selection_timeout;
    696 	isp_mboxcmd(isp, &mbs);
    697 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    698 		isp_dumpregs(isp, "failed to set selection timeout");
    699 		return;
    700 	}
    701 
    702 	/*
    703 	 * Set current per-target parameters to a safe minimum.
    704 	 */
    705 	for (tgt = 0; tgt < MAX_TARGETS; tgt++) {
    706 		int maxlun, lun;
    707 		u_int16_t sdf;
    708 
    709 		if (sdp->isp_devparam[tgt].dev_enable == 0)
    710 			continue;
    711 
    712 		sdf = DPARM_SAFE_DFLT;
    713 		/*
    714 		 * It is not quite clear when this changed over so that
    715 		 * we could force narrow and async, so assume >= 7.55.
    716 		 */
    717 		if (isp->isp_fwrev >= ISP_FW_REV(7, 55)) {
    718 			sdf |= DPARM_NARROW | DPARM_ASYNC;
    719 		}
    720 		mbs.param[0] = MBOX_SET_TARGET_PARAMS;
    721 		mbs.param[1] = tgt << 8;
    722 		mbs.param[2] = sdf;
    723 		mbs.param[3] =
    724 		    (sdp->isp_devparam[tgt].sync_offset << 8) |
    725 		    (sdp->isp_devparam[tgt].sync_period);
    726 		isp_mboxcmd(isp, &mbs);
    727 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    728 			sdf = DPARM_SAFE_DFLT;
    729 			mbs.param[0] = MBOX_SET_TARGET_PARAMS;
    730 			mbs.param[1] = tgt << 8;
    731 			mbs.param[2] = sdf;
    732 			mbs.param[3] =
    733 			    (sdp->isp_devparam[tgt].sync_offset << 8) |
    734 			    (sdp->isp_devparam[tgt].sync_period);
    735 			isp_mboxcmd(isp, &mbs);
    736 			if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    737 				PRINTF("%s: failed even to set defaults for "
    738 				    "target %d\n", isp->isp_name, tgt);
    739 				continue;
    740 			}
    741 		}
    742 		/*
    743 		 * We don't update dev_flags with what we've set
    744 		 * because that's not the ultimate goal setting.
    745 		 * If we succeed with the command, we *do* update
    746 		 * cur_dflags by getting target parameters.
    747 		 */
    748 		mbs.param[0] = MBOX_GET_TARGET_PARAMS;
    749 		mbs.param[1] = (tgt << 8);
    750 		isp_mboxcmd(isp, &mbs);
    751 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    752 			/*
    753 			 * Urrr.... We'll set cur_dflags to DPARM_SAFE_DFLT so
    754 			 * we don't try and do tags if tags aren't enabled.
    755 			 */
    756 			sdp->isp_devparam[tgt].cur_dflags = DPARM_SAFE_DFLT;
    757 		} else {
    758 			sdp->isp_devparam[tgt].cur_dflags = mbs.param[2];
    759 			sdp->isp_devparam[tgt].cur_offset = mbs.param[3] >> 8;
    760 			sdp->isp_devparam[tgt].cur_period = mbs.param[3] & 0xff;
    761 		}
    762 		/*
    763 		 * Ensure that we don't believe tagged queuing is enabled yet.
    764 		 * It turns out that sometimes the ISP just ignores our
    765 		 * attempts to set parameters for devices that it hasn't
    766 		 * seen yet.
    767 		 */
    768 		sdp->isp_devparam[tgt].cur_dflags &= ~DPARM_TQING;
    769 
    770 		maxlun = (isp->isp_fwrev >= ISP_FW_REV(7, 55))? 32 : 8;
    771 		for (lun = 0; lun < maxlun; lun++) {
    772 			mbs.param[0] = MBOX_SET_DEV_QUEUE_PARAMS;
    773 			mbs.param[1] = (tgt << 8) | lun;
    774 			mbs.param[2] = sdp->isp_max_queue_depth;
    775 			mbs.param[3] = sdp->isp_devparam[tgt].exc_throttle;
    776 			isp_mboxcmd(isp, &mbs);
    777 			if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    778 				PRINTF("%s: failed to set device queue "
    779 				    "parameters for target %d, lun %d\n",
    780 				    isp->isp_name, tgt, lun);
    781 				break;
    782 			}
    783 		}
    784 		/*
    785 		 * And mark this as an unannounced device
    786 		 */
    787 		sdp->isp_devparam[tgt].dev_announced = 0;
    788 	}
    789 
    790 	mbs.param[0] = MBOX_INIT_RES_QUEUE;
    791 	mbs.param[1] = RESULT_QUEUE_LEN;
    792 	mbs.param[2] = (u_int16_t) (isp->isp_result_dma >> 16);
    793 	mbs.param[3] = (u_int16_t) (isp->isp_result_dma & 0xffff);
    794 	mbs.param[4] = 0;
    795 	mbs.param[5] = 0;
    796 	isp_mboxcmd(isp, &mbs);
    797 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    798 		isp_dumpregs(isp, "set of response queue failed");
    799 		return;
    800 	}
    801 	isp->isp_residx = 0;
    802 
    803 	mbs.param[0] = MBOX_INIT_REQ_QUEUE;
    804 	mbs.param[1] = RQUEST_QUEUE_LEN;
    805 	mbs.param[2] = (u_int16_t) (isp->isp_rquest_dma >> 16);
    806 	mbs.param[3] = (u_int16_t) (isp->isp_rquest_dma & 0xffff);
    807 	mbs.param[4] = 0;
    808 	mbs.param[5] = 0;
    809 	isp_mboxcmd(isp, &mbs);
    810 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    811 		isp_dumpregs(isp, "set of request queue failed");
    812 		return;
    813 	}
    814 	isp->isp_reqidx = isp->isp_reqodx = 0;
    815 
    816 	/*
    817 	 *  Turn on Fast Posting, LVD transitions
    818 	 */
    819 
    820 	if (IS_1080(isp) || isp->isp_fwrev >= ISP_FW_REV(7, 55)) {
    821 		mbs.param[0] = MBOX_SET_FW_FEATURES;
    822 #ifndef	ISP_NO_FASTPOST_SCSI
    823 		mbs.param[1] |= FW_FEATURE_FAST_POST;
    824 #else
    825 		mbs.param[1] = 0;
    826 #endif
    827 		if (IS_1080(isp))
    828 			mbs.param[1] |= FW_FEATURE_LVD_NOTIFY;
    829 		if (mbs.param[1] != 0) {
    830 			isp_mboxcmd(isp, &mbs);
    831 			if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    832 				PRINTF("%s: unable enable FW features\n",
    833 				    isp->isp_name);
    834 			}
    835 		}
    836 	}
    837 
    838 	/*
    839 	 * Let the outer layers decide whether to issue a SCSI bus reset.
    840 	 */
    841 #if	0
    842 	/*
    843 	 * XXX: See whether or not for 7.55 F/W or later we
    844 	 * XXX: can do without this, and see whether we should
    845 	 * XXX: honor the NVRAM SCSI_RESET_DISABLE token.
    846 	 */
    847 	mbs.param[0] = MBOX_BUS_RESET;
    848 	mbs.param[1] = 3;
    849 	isp_mboxcmd(isp, &mbs);
    850 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
    851 		isp_dumpregs(isp, "SCSI bus reset failed");
    852 	}
    853 	/*
    854 	 * This is really important to have set after a bus reset.
    855 	 */
    856 	isp->isp_sendmarker = 1;
    857 #endif
    858 	isp->isp_state = ISP_INITSTATE;
    859 }
    860 
    861 /*
    862  * Fibre Channel specific initialization.
    863  *
    864  * Locks are held before coming here.
    865  */
    866 static void
    867 isp_fibre_init(isp)
    868 	struct ispsoftc *isp;
    869 {
    870 	fcparam *fcp;
    871 	isp_icb_t *icbp;
    872 	mbreg_t mbs;
    873 	int count, loopid;
    874 
    875 	fcp = isp->isp_param;
    876 
    877 	/*
    878 	 * For systems that don't have BIOS methods for which
    879 	 * we can easily change the NVRAM based loopid, we'll
    880 	 * override that here. Note that when we initialize
    881 	 * the firmware we may get back a different loopid than
    882 	 * we asked for anyway. XXX This is probably not the
    883 	 * best way to figure this out XXX
    884 	 */
    885 #ifndef	__i386__
    886 	loopid = DEFAULT_LOOPID;
    887 #else
    888 	loopid = fcp->isp_loopid;
    889 #endif
    890 
    891 #if	defined(ISP2100_FABRIC) && defined(ISP2100_SCCLUN)
    892 	PRINTF("%s: Fabric Support, Expanded Lun Support\n", isp->isp_name);
    893 #endif
    894 #if	defined(ISP2100_FABRIC) && !defined(ISP2100_SCCLUN)
    895 	PRINTF("%s: Fabric Support\n", isp->isp_name);
    896 #endif
    897 #if	!defined(ISP2100_FABRIC) && defined(ISP2100_SCCLUN)
    898 	PRINTF("%s: Expanded Lun Support\n", isp->isp_name);
    899 #endif
    900 
    901 	icbp = (isp_icb_t *) fcp->isp_scratch;
    902 	MEMZERO(icbp, sizeof (*icbp));
    903 
    904 	icbp->icb_version = ICB_VERSION1;
    905 #ifdef	ISP_TARGET_MODE
    906 	fcp->isp_fwoptions = ICBOPT_TGT_ENABLE|ICBOPT_INI_TGTTYPE;
    907 #else
    908 	fcp->isp_fwoptions = 0;
    909 #endif
    910 	fcp->isp_fwoptions |= ICBOPT_INI_ADISC|ICBOPT_FAIRNESS;
    911 	fcp->isp_fwoptions |= ICBOPT_PDBCHANGE_AE;
    912 	fcp->isp_fwoptions |= ICBOPT_HARD_ADDRESS;
    913 #ifndef	ISP_NO_FASTPOST_FC
    914 	fcp->isp_fwoptions |= ICBOPT_FAST_POST;
    915 #endif
    916 #ifdef	CHECKME
    917 	fcp->isp_fwoptions |= ICBOPT_USE_PORTNAME;
    918 #endif
    919 #ifdef	ISP2100_FABRIC
    920 	fcp->isp_fwoptions |= ICBOPT_FULL_LOGIN;
    921 #endif
    922 
    923 	icbp->icb_fwoptions = fcp->isp_fwoptions;
    924 	icbp->icb_maxfrmlen = fcp->isp_maxfrmlen;
    925 	if (icbp->icb_maxfrmlen < ICB_MIN_FRMLEN ||
    926 	    icbp->icb_maxfrmlen > ICB_MAX_FRMLEN) {
    927 		PRINTF("%s: bad frame length (%d) from NVRAM- using %d\n",
    928 		    isp->isp_name, fcp->isp_maxfrmlen, ICB_DFLT_FRMLEN);
    929 	}
    930 	icbp->icb_maxalloc = fcp->isp_maxalloc;
    931 	icbp->icb_execthrottle = fcp->isp_execthrottle;
    932 	icbp->icb_retry_delay = fcp->isp_retry_delay;
    933 	icbp->icb_retry_count = fcp->isp_retry_count;
    934 	icbp->icb_hardaddr = loopid;
    935 
    936 	MAKE_NODE_NAME_FROM_WWN(icbp->icb_nodename, fcp->isp_wwn);
    937 	if (icbp->icb_fwoptions & ICBOPT_USE_PORTNAME) {
    938 		u_int64_t portname = fcp->isp_wwn | (2LL << 56);
    939 		MAKE_NODE_NAME_FROM_WWN(icbp->icb_nodename, portname);
    940 	}
    941 	icbp->icb_rqstqlen = RQUEST_QUEUE_LEN;
    942 	icbp->icb_rsltqlen = RESULT_QUEUE_LEN;
    943 	icbp->icb_rqstaddr[RQRSP_ADDR0015] =
    944 	    (u_int16_t) (isp->isp_rquest_dma & 0xffff);
    945 	icbp->icb_rqstaddr[RQRSP_ADDR1631] =
    946 	    (u_int16_t) (isp->isp_rquest_dma >> 16);
    947 	icbp->icb_respaddr[RQRSP_ADDR0015] =
    948 	    (u_int16_t) (isp->isp_result_dma & 0xffff);
    949 	icbp->icb_respaddr[RQRSP_ADDR1631] =
    950 	    (u_int16_t) (isp->isp_result_dma >> 16);
    951 	MemoryBarrier();
    952 
    953 	for (count = 0; count < 10; count++) {
    954 		mbs.param[0] = MBOX_INIT_FIRMWARE;
    955 		mbs.param[1] = 0;
    956 		mbs.param[2] = (u_int16_t) (fcp->isp_scdma >> 16);
    957 		mbs.param[3] = (u_int16_t) (fcp->isp_scdma & 0xffff);
    958 		mbs.param[4] = 0;
    959 		mbs.param[5] = 0;
    960 		mbs.param[6] = 0;
    961 		mbs.param[7] = 0;
    962 
    963 		isp_mboxcmd(isp, &mbs);
    964 
    965 		switch (mbs.param[0]) {
    966 		case MBOX_COMMAND_COMPLETE:
    967 			count = 10;
    968 			break;
    969 		case ASYNC_PDB_CHANGED:
    970 			isp_mark_getpdb_all(isp);
    971 			/* FALL THROUGH */
    972 		case ASYNC_LIP_OCCURRED:
    973 		case ASYNC_LOOP_UP:
    974 		case ASYNC_LOOP_DOWN:
    975 		case ASYNC_LOOP_RESET:
    976 		case ASYNC_CHANGE_NOTIFY:
    977 			if (count > 9) {
    978 				PRINTF("%s: too many retries to get going- "
    979 				    "giving up\n", isp->isp_name);
    980 				return;
    981 			}
    982 			break;
    983 		default:
    984 			isp_dumpregs(isp, "INIT FIRMWARE failed");
    985 			return;
    986 		}
    987 	}
    988 	isp->isp_reqidx = isp->isp_reqodx = 0;
    989 	isp->isp_residx = 0;
    990 	isp->isp_sendmarker = 1;
    991 
    992 	/*
    993 	 * Whatever happens, we're now committed to being here.
    994 	 */
    995 	isp->isp_state = ISP_INITSTATE;
    996 	fcp->isp_fwstate = FW_CONFIG_WAIT;
    997 
    998 	isp_mark_getpdb_all(isp);
    999 
   1000 #ifdef	ISP_TARGET_MODE
   1001 	if (isp_modify_lun(isp, 0, 1, 1)) {
   1002 		PRINTF("%s: failed to enable target mode\n", isp->isp_name);
   1003 	}
   1004 #endif
   1005 }
   1006 
   1007 /*
   1008  * Fibre Channel Support- get the port database for the id.
   1009  *
   1010  * Locks are held before coming here. Return 0 if success,
   1011  * else failure.
   1012  */
   1013 
   1014 static void
   1015 isp_mark_getpdb_all(isp)
   1016 	struct ispsoftc *isp;
   1017 {
   1018 	isp_pdb_t *p;
   1019 	fcparam *fcp = (fcparam *) isp->isp_param;
   1020 	for (p = &fcp->isp_pdb[0]; p < &fcp->isp_pdb[MAX_FC_TARG]; p++) {
   1021 		p->pdb_options = INVALID_PDB_OPTIONS;
   1022 	}
   1023 }
   1024 
   1025 static int
   1026 isp_getpdb(isp, id, pdbp)
   1027 	struct ispsoftc *isp;
   1028 	int id;
   1029 	isp_pdb_t *pdbp;
   1030 {
   1031 	fcparam *fcp = (fcparam *) isp->isp_param;
   1032 	mbreg_t mbs;
   1033 	mbs.param[0] = MBOX_GET_PORT_DB;
   1034 	mbs.param[1] = id << 8;
   1035 	mbs.param[2] = (u_int16_t) (fcp->isp_scdma >> 16);
   1036 	mbs.param[3] = (u_int16_t) (fcp->isp_scdma & 0xffff);
   1037 	/*
   1038 	 * Unneeded. For the 2100, except for initializing f/w, registers
   1039 	 * 4/5 have to not be written to.
   1040 	 *	mbs.param[4] = 0;
   1041 	 *	mbs.param[5] = 0;
   1042 	 *
   1043 	 */
   1044 	mbs.param[6] = 0;
   1045 	mbs.param[7] = 0;
   1046 	isp_mboxcmd(isp, &mbs);
   1047 	switch (mbs.param[0]) {
   1048 	case MBOX_COMMAND_COMPLETE:
   1049 		MemoryBarrier();
   1050 		MEMCPY(pdbp, fcp->isp_scratch, sizeof (isp_pdb_t));
   1051 		break;
   1052 	case MBOX_HOST_INTERFACE_ERROR:
   1053 		PRINTF("%s: DMA error getting port database\n", isp->isp_name);
   1054 		return (-1);
   1055 	case MBOX_COMMAND_PARAM_ERROR:
   1056 		/* Not Logged In */
   1057 		IDPRINTF(3, ("%s: Comand Param Error on Get Port Database\n",
   1058 		    isp->isp_name));
   1059 		return (-1);
   1060 	default:
   1061 		PRINTF("%s: error 0x%x getting port database for ID %d\n",
   1062 		    isp->isp_name, mbs.param[0], id);
   1063 		return (-1);
   1064 	}
   1065 	return (0);
   1066 }
   1067 
   1068 /*
   1069  * Make sure we have good FC link and know our Loop ID.
   1070  */
   1071 
   1072 static int
   1073 isp_fclink_test(isp, waitdelay)
   1074 	struct ispsoftc *isp;
   1075 	int waitdelay;
   1076 {
   1077 	mbreg_t mbs;
   1078 	int count;
   1079 	u_int8_t lwfs;
   1080 	fcparam *fcp;
   1081 
   1082 	fcp = isp->isp_param;
   1083 
   1084 	/*
   1085 	 * Wait up to N microseconds for F/W to go to a ready state.
   1086 	 */
   1087 	lwfs = FW_CONFIG_WAIT;
   1088 	for (count = 0; count < waitdelay; count += 100) {
   1089 		isp_fw_state(isp);
   1090 		if (lwfs != fcp->isp_fwstate) {
   1091 			PRINTF("%s: Firmware State %s -> %s\n",
   1092 			    isp->isp_name, isp2100_fw_statename((int)lwfs),
   1093 			    isp2100_fw_statename((int)fcp->isp_fwstate));
   1094 			lwfs = fcp->isp_fwstate;
   1095 		}
   1096 		if (fcp->isp_fwstate == FW_READY) {
   1097 			break;
   1098 		}
   1099 		SYS_DELAY(100);	/* wait 100 microseconds */
   1100 	}
   1101 
   1102 	/*
   1103 	 * If we haven't gone to 'ready' state, return.
   1104 	 */
   1105 	if (fcp->isp_fwstate != FW_READY) {
   1106 		return (-1);
   1107 	}
   1108 
   1109 	/*
   1110 	 * Get our Loop ID (if possible). We really need to have it.
   1111 	 */
   1112 	mbs.param[0] = MBOX_GET_LOOP_ID;
   1113 	isp_mboxcmd(isp, &mbs);
   1114 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
   1115 		PRINTF("%s: GET LOOP ID failed\n", isp->isp_name);
   1116 		return (-1);
   1117 	}
   1118 	fcp->isp_loopid = mbs.param[1];
   1119 	fcp->isp_alpa = mbs.param[2];
   1120 	PRINTF("%s: Loop ID %d, ALPA 0x%x\n", isp->isp_name,
   1121 	    fcp->isp_loopid, fcp->isp_alpa);
   1122 	return (0);
   1123 
   1124 }
   1125 
   1126 /*
   1127  * Start a command. Locking is assumed done in the caller.
   1128  */
   1129 
   1130 int32_t
   1131 ispscsicmd(xs)
   1132 	ISP_SCSI_XFER_T *xs;
   1133 {
   1134 	struct ispsoftc *isp;
   1135 	u_int8_t iptr, optr;
   1136 	union {
   1137 		ispreq_t *_reqp;
   1138 		ispreqt2_t *_t2reqp;
   1139 	} _u;
   1140 #define	reqp	_u._reqp
   1141 #define	t2reqp	_u._t2reqp
   1142 #define	UZSIZE	max(sizeof (ispreq_t), sizeof (ispreqt2_t))
   1143 	int i, rqidx;
   1144 
   1145 	XS_INITERR(xs);
   1146 	isp = XS_ISP(xs);
   1147 
   1148 	if (isp->isp_state != ISP_RUNSTATE) {
   1149 		PRINTF("%s: adapter not ready\n", isp->isp_name);
   1150 		XS_SETERR(xs, HBA_BOTCH);
   1151 		return (CMD_COMPLETE);
   1152 	}
   1153 
   1154 	/*
   1155 	 * We *could* do the different sequence type that has close
   1156 	 * to the whole Queue Entry for the command...
   1157 	 */
   1158 
   1159 	if (XS_CDBLEN(xs) > ((isp->isp_type & ISP_HA_FC)? 16 : 12)) {
   1160 		PRINTF("%s: unsupported cdb length (%d)\n",
   1161 		    isp->isp_name, XS_CDBLEN(xs));
   1162 		XS_SETERR(xs, HBA_BOTCH);
   1163 		return (CMD_COMPLETE);
   1164 	}
   1165 
   1166 	/*
   1167 	 * Check to see whether we have good firmware state still or
   1168 	 * need to refresh our port database for this target.
   1169 	 */
   1170 	if (IS_FC(isp)) {
   1171 		fcparam *fcp = isp->isp_param;
   1172 		isp_pdb_t *pdbp = &fcp->isp_pdb[XS_TGT(xs)];
   1173 
   1174 		/*
   1175 		 * Check for f/w being in ready state. Well, okay,
   1176 		 * our cached copy of it...
   1177 		 */
   1178 		if (fcp->isp_fwstate != FW_READY) {
   1179 			if (isp_fclink_test(isp, FC_FW_READY_DELAY)) {
   1180 				XS_SETERR(xs, HBA_SELTIMEOUT);
   1181 				return (CMD_COMPLETE);
   1182 			}
   1183 		}
   1184 		/*
   1185 		 * Refresh our port database if needed.
   1186 		 */
   1187 		if (pdbp->pdb_options == INVALID_PDB_OPTIONS) {
   1188 			if (isp_getpdb(isp, XS_TGT(xs), pdbp) == 0) {
   1189 				isp_async(isp, ISPASYNC_PDB_CHANGE_COMPLETE,
   1190 				    (void *) (long) XS_TGT(xs));
   1191 			}
   1192 		}
   1193 	}
   1194 
   1195 	/*
   1196 	 * Next check to see if any HBA or Device
   1197 	 * parameters need to be updated.
   1198 	 */
   1199 	if (isp->isp_update) {
   1200 		isp_update(isp);
   1201 	}
   1202 
   1203 	optr = isp->isp_reqodx = ISP_READ(isp, OUTMAILBOX4);
   1204 	iptr = isp->isp_reqidx;
   1205 
   1206 	reqp = (ispreq_t *) ISP_QUEUE_ENTRY(isp->isp_rquest, iptr);
   1207 	iptr = ISP_NXT_QENTRY(iptr, RQUEST_QUEUE_LEN);
   1208 	if (iptr == optr) {
   1209 		IDPRINTF(2, ("%s: Request Queue Overflow\n", isp->isp_name));
   1210 		XS_SETERR(xs, HBA_BOTCH);
   1211 		return (CMD_EAGAIN);
   1212 	}
   1213 
   1214 	if (isp->isp_sendmarker) {
   1215 		u_int8_t niptr;
   1216 		ispmarkreq_t *marker = (ispmarkreq_t *) reqp;
   1217 
   1218 		MEMZERO((void *) marker, sizeof (*marker));
   1219 		marker->req_header.rqs_entry_count = 1;
   1220 		marker->req_header.rqs_entry_type = RQSTYPE_MARKER;
   1221 		marker->req_modifier = SYNC_ALL;
   1222 
   1223 		/*
   1224 		 * Unconditionally update the input pointer anyway.
   1225 		 */
   1226 		ISP_WRITE(isp, INMAILBOX4, iptr);
   1227 		isp->isp_reqidx = iptr;
   1228 
   1229 		niptr = ISP_NXT_QENTRY(iptr, RQUEST_QUEUE_LEN);
   1230 		if (niptr == optr) {
   1231 			IDPRINTF(2, ("%s: Request Queue Overflow+\n",
   1232 			    isp->isp_name));
   1233 			XS_SETERR(xs, HBA_BOTCH);
   1234 			return (CMD_EAGAIN);
   1235 		}
   1236 		reqp = (ispreq_t *) ISP_QUEUE_ENTRY(isp->isp_rquest, iptr);
   1237 		iptr = niptr;
   1238 	}
   1239 
   1240 	MEMZERO((void *) reqp, UZSIZE);
   1241 	reqp->req_header.rqs_entry_count = 1;
   1242 	if (isp->isp_type & ISP_HA_FC) {
   1243 		reqp->req_header.rqs_entry_type = RQSTYPE_T2RQS;
   1244 	} else {
   1245 		reqp->req_header.rqs_entry_type = RQSTYPE_REQUEST;
   1246 	}
   1247 	reqp->req_header.rqs_flags = 0;
   1248 	reqp->req_header.rqs_seqno = isp->isp_seqno++;
   1249 
   1250 	for (rqidx = 0; rqidx < RQUEST_QUEUE_LEN; rqidx++) {
   1251 		if (isp->isp_xflist[rqidx] == NULL)
   1252 			break;
   1253 	}
   1254 	if (rqidx == RQUEST_QUEUE_LEN) {
   1255 		IDPRINTF(2, ("%s: out of xflist pointers\n", isp->isp_name));
   1256 		XS_SETERR(xs, HBA_BOTCH);
   1257 		return (CMD_EAGAIN);
   1258 	} else {
   1259 		/*
   1260 		 * Never have a handle that is zero, so
   1261 		 * set req_handle off by one.
   1262 		 */
   1263 		isp->isp_xflist[rqidx] = xs;
   1264 		reqp->req_handle = rqidx+1;
   1265 	}
   1266 
   1267 	if (isp->isp_type & ISP_HA_FC) {
   1268 		/*
   1269 		 * See comment in isp_intr
   1270 		 */
   1271 		XS_RESID(xs) = 0;
   1272 
   1273 		/*
   1274 		 * Fibre Channel always requires some kind of tag.
   1275 		 * If we're marked as "Can't Tag", just do simple
   1276 		 * instead of ordered tags. It's pretty clear to me
   1277 		 * that we shouldn't do head of queue tagging in
   1278 		 * this case.
   1279 		 */
   1280 		if (XS_CANTAG(xs)) {
   1281 			t2reqp->req_flags = XS_KINDOF_TAG(xs);
   1282 		} else {
   1283 			t2reqp->req_flags = REQFLAG_STAG;
   1284 		}
   1285 	} else {
   1286 		sdparam *sdp = (sdparam *)isp->isp_param;
   1287 		if ((sdp->isp_devparam[XS_TGT(xs)].cur_dflags & DPARM_TQING) &&
   1288 		    XS_CANTAG(xs)) {
   1289 			reqp->req_flags = XS_KINDOF_TAG(xs);
   1290 		} else {
   1291 			reqp->req_flags = 0;
   1292 		}
   1293 	}
   1294 	reqp->req_target = XS_TGT(xs);
   1295 	if (isp->isp_type & ISP_HA_SCSI) {
   1296 		reqp->req_lun_trn = XS_LUN(xs);
   1297 		reqp->req_cdblen = XS_CDBLEN(xs);
   1298 	} else {
   1299 #ifdef	ISP2100_SCCLUN
   1300 		reqp->req_scclun = XS_LUN(xs);
   1301 #else
   1302 		reqp->req_lun_trn = XS_LUN(xs);
   1303 #endif
   1304 
   1305 	}
   1306 	MEMCPY(reqp->req_cdb, XS_CDBP(xs), XS_CDBLEN(xs));
   1307 
   1308 	IDPRINTF(5, ("%s(%d.%d): START%d cmd 0x%x datalen %d\n", isp->isp_name,
   1309 	    XS_TGT(xs), XS_LUN(xs), reqp->req_header.rqs_seqno,
   1310 	    reqp->req_cdb[0], XS_XFRLEN(xs)));
   1311 
   1312 	reqp->req_time = XS_TIME(xs) / 1000;
   1313 	if (reqp->req_time == 0 && XS_TIME(xs))
   1314 		reqp->req_time = 1;
   1315 
   1316 	/*
   1317 	 * Always give a bit more leeway to commands after a bus reset.
   1318 	 */
   1319 	if (isp->isp_sendmarker && reqp->req_time < 5)
   1320 		reqp->req_time = 5;
   1321 
   1322 	i = ISP_DMASETUP(isp, xs, reqp, &iptr, optr);
   1323 	if (i != CMD_QUEUED) {
   1324 		/*
   1325 		 * Take memory of it away...
   1326 		 */
   1327 		isp->isp_xflist[rqidx] = NULL;
   1328 		/*
   1329 		 * dmasetup sets actual error in packet, and
   1330 		 * return what we were given to return.
   1331 		 */
   1332 		return (i);
   1333 	}
   1334 	XS_SETERR(xs, HBA_NOERROR);
   1335 	MemoryBarrier();
   1336 	ISP_WRITE(isp, INMAILBOX4, iptr);
   1337 	isp->isp_reqidx = iptr;
   1338 	isp->isp_nactive++;
   1339 	if (isp->isp_sendmarker)
   1340 		isp->isp_sendmarker = 0;
   1341 	return (CMD_QUEUED);
   1342 #undef	reqp
   1343 #undef	t2reqp
   1344 }
   1345 
   1346 /*
   1347  * isp control
   1348  * Locks (ints blocked) assumed held.
   1349  */
   1350 
   1351 int
   1352 isp_control(isp, ctl, arg)
   1353 	struct ispsoftc *isp;
   1354 	ispctl_t ctl;
   1355 	void *arg;
   1356 {
   1357 	ISP_SCSI_XFER_T *xs;
   1358 	mbreg_t mbs;
   1359 	int i;
   1360 
   1361 	switch (ctl) {
   1362 	default:
   1363 		PRINTF("%s: isp_control unknown control op %x\n",
   1364 		    isp->isp_name, ctl);
   1365 		break;
   1366 
   1367 	case ISPCTL_RESET_BUS:
   1368 		/*
   1369 		 * This is really important to have set after a bus reset.
   1370 		 */
   1371 		isp->isp_sendmarker = 1;
   1372 
   1373 		/*
   1374 		 * Issue a bus reset.
   1375 		 */
   1376 		mbs.param[0] = MBOX_BUS_RESET;
   1377 		if (isp->isp_type & ISP_HA_SCSI) {
   1378 			mbs.param[1] =
   1379 			    ((sdparam *) isp->isp_param)->isp_bus_reset_delay;
   1380 			if (mbs.param[1] < 2)
   1381 				mbs.param[1] = 2;
   1382 		} else {
   1383 			/*
   1384 			 * Unparameterized.
   1385 			 */
   1386 			mbs.param[1] = 5;
   1387 		}
   1388 		isp_mboxcmd(isp, &mbs);
   1389 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
   1390 			isp_dumpregs(isp, "isp_control SCSI bus reset failed");
   1391 			break;
   1392 		}
   1393 		PRINTF("%s: driver initiated bus reset\n", isp->isp_name);
   1394 		return (0);
   1395 
   1396 	case ISPCTL_RESET_DEV:
   1397 		mbs.param[0] = MBOX_ABORT_TARGET;
   1398 		mbs.param[1] = ((long)arg) << 8;
   1399 		mbs.param[2] = 3;	/* 'delay', in seconds */
   1400 		isp_mboxcmd(isp, &mbs);
   1401 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
   1402 			isp_dumpregs(isp, "Target Reset Failed");
   1403 			break;
   1404 		}
   1405 		PRINTF("%s: Target %d Reset Succeeded\n", isp->isp_name,
   1406 		    (int) ((long) arg));
   1407 		isp->isp_sendmarker = 1;
   1408 		return (0);
   1409 
   1410 	case ISPCTL_ABORT_CMD:
   1411 		xs = (ISP_SCSI_XFER_T *) arg;
   1412 		for (i = 0; i < RQUEST_QUEUE_LEN; i++) {
   1413 			if (xs == isp->isp_xflist[i]) {
   1414 				break;
   1415 			}
   1416 		}
   1417 		if (i == RQUEST_QUEUE_LEN) {
   1418 			PRINTF("%s: isp_control- cannot find command to abort "
   1419 			    "in active list\n", isp->isp_name);
   1420 			break;
   1421 		}
   1422 		mbs.param[0] = MBOX_ABORT;
   1423 #ifdef	ISP2100_SCCLUN
   1424 		if (isp->isp_type & ISP_HA_FC) {
   1425 			mbs.param[1] = XS_TGT(xs) << 8;
   1426 			mbs.param[4] = 0;
   1427 			mbs.param[5] = 0;
   1428 			mbs.param[6] = XS_LUN(xs);
   1429 		} else {
   1430 			mbs.param[1] = XS_TGT(xs) << 8 | XS_LUN(xs);
   1431 		}
   1432 #else
   1433 		mbs.param[1] = XS_TGT(xs) << 8 | XS_LUN(xs);
   1434 #endif
   1435 		mbs.param[2] = (i+1) >> 16;
   1436 		mbs.param[3] = (i+1) & 0xffff;
   1437 		isp_mboxcmd(isp, &mbs);
   1438 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
   1439 			PRINTF("%s: isp_control MBOX_ABORT failure (code %x)\n",
   1440 			    isp->isp_name, mbs.param[0]);
   1441 			break;
   1442 		}
   1443 		PRINTF("%s: command for target %d lun %d was aborted\n",
   1444 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   1445 		return (0);
   1446 
   1447 	case ISPCTL_UPDATE_PARAMS:
   1448 		isp_update(isp);
   1449 		return (0);
   1450 
   1451 	case ISPCTL_FCLINK_TEST:
   1452 		return (isp_fclink_test(isp, FC_FW_READY_DELAY));
   1453 	}
   1454 	return (-1);
   1455 }
   1456 
   1457 /*
   1458  * Interrupt Service Routine(s).
   1459  *
   1460  * External (OS) framework has done the appropriate locking,
   1461  * and the locking will be held throughout this function.
   1462  */
   1463 
   1464 int
   1465 isp_intr(arg)
   1466 	void *arg;
   1467 {
   1468 	ISP_SCSI_XFER_T *complist[RESULT_QUEUE_LEN], *xs;
   1469 	struct ispsoftc *isp = arg;
   1470 	u_int8_t iptr, optr;
   1471 	u_int16_t isr;
   1472 	int i, nlooked = 0, ndone = 0;
   1473 
   1474 	isr = ISP_READ(isp, BIU_ISR);
   1475 	if (isp->isp_type & ISP_HA_FC) {
   1476 		if (isr == 0 || (isr & BIU2100_ISR_RISC_INT) == 0) {
   1477 			if (isr) {
   1478 				IDPRINTF(4, ("%s: isp_intr isr=%x\n",
   1479 				    isp->isp_name, isr));
   1480 			}
   1481 			return (0);
   1482 		}
   1483 	} else {
   1484 		if (isr == 0 || (isr & BIU_ISR_RISC_INT) == 0) {
   1485 			if (isr) {
   1486 				IDPRINTF(4, ("%s: isp_intr isr=%x\n",
   1487 				    isp->isp_name, isr));
   1488 			}
   1489 			return (0);
   1490 		}
   1491 	}
   1492 
   1493 	if (ISP_READ(isp, BIU_SEMA) & 1) {
   1494 		u_int16_t mbox = ISP_READ(isp, OUTMAILBOX0);
   1495 		if (mbox & 0x4000) {
   1496 			IDPRINTF(3, ("%s: isp_intr sees 0x%x\n",
   1497 			    isp->isp_name, mbox));
   1498 			ISP_WRITE(isp, BIU_SEMA, 0);
   1499 		} else {
   1500 			u_int32_t fhandle = isp_parse_async(isp, (int) mbox);
   1501 			ISP_WRITE(isp, BIU_SEMA, 0);
   1502 			if (fhandle < 0) {
   1503 				return (1);
   1504 			} else if (fhandle > 0) {
   1505 				xs = (void *)isp->isp_xflist[fhandle - 1];
   1506 				isp->isp_xflist[fhandle - 1] = NULL;
   1507 				/*
   1508 				 * Since we don't have a result queue entry
   1509 				 * item, we must believe that SCSI status is
   1510 				 * zero and that all data transferred.
   1511 				 */
   1512 				XS_RESID(xs) = 0;
   1513 				XS_STS(xs) = 0;
   1514 				if (XS_XFRLEN(xs)) {
   1515 					ISP_DMAFREE(isp, xs, fhandle - 1);
   1516 				}
   1517 				if (isp->isp_nactive > 0)
   1518 				    isp->isp_nactive--;
   1519 				complist[ndone++] = xs;
   1520 			}
   1521 		}
   1522 	}
   1523 	ISP_WRITE(isp, HCCR, HCCR_CMD_CLEAR_RISC_INT);
   1524 
   1525 	optr = isp->isp_residx;
   1526 	iptr = ISP_READ(isp, OUTMAILBOX5);
   1527 
   1528 	if (optr == iptr) {
   1529 		IDPRINTF(4, ("why intr? isr %x iptr %x optr %x\n",
   1530 		    isr, optr, iptr));
   1531 	}
   1532 	ENABLE_INTS(isp);
   1533 
   1534 	while (optr != iptr) {
   1535 		ispstatusreq_t *sp;
   1536 		u_int8_t oop;
   1537 		int buddaboom = 0;
   1538 
   1539 		sp = (ispstatusreq_t *) ISP_QUEUE_ENTRY(isp->isp_result, optr);
   1540 		oop = optr;
   1541 		optr = ISP_NXT_QENTRY(optr, RESULT_QUEUE_LEN);
   1542 		nlooked++;
   1543 		MemoryBarrier();
   1544 		if (sp->req_header.rqs_entry_type != RQSTYPE_RESPONSE) {
   1545 			if (isp_handle_other_response(isp, sp, &optr) == 0) {
   1546 				ISP_WRITE(isp, INMAILBOX5, optr);
   1547 				continue;
   1548 			}
   1549 			/*
   1550 			 * It really has to be a bounced request just copied
   1551 			 * from the request queue to the response queue.
   1552 			 */
   1553 
   1554 			if (sp->req_header.rqs_entry_type != RQSTYPE_REQUEST) {
   1555 				ISP_WRITE(isp, INMAILBOX5, optr);
   1556 				continue;
   1557 			}
   1558 			PRINTF("%s: not RESPONSE in RESPONSE Queue "
   1559 			    "(type 0x%x) @ idx %d (next %d)\n", isp->isp_name,
   1560 			    sp->req_header.rqs_entry_type, oop, optr);
   1561 			buddaboom = 1;
   1562 		}
   1563 
   1564 		if (sp->req_header.rqs_flags & 0xf) {
   1565 			if (sp->req_header.rqs_flags & RQSFLAG_CONTINUATION) {
   1566 				ISP_WRITE(isp, INMAILBOX5, optr);
   1567 				continue;
   1568 			}
   1569 			PRINTF("%s: rqs_flags=%x", isp->isp_name,
   1570 				sp->req_header.rqs_flags & 0xf);
   1571 			if (sp->req_header.rqs_flags & RQSFLAG_FULL) {
   1572 				PRINTF("%s: internal queues full\n",
   1573 				    isp->isp_name);
   1574 				/* XXXX: this command *could* get restarted */
   1575 				buddaboom++;
   1576 			}
   1577 			if (sp->req_header.rqs_flags & RQSFLAG_BADHEADER) {
   1578 				PRINTF("%s: bad header\n", isp->isp_name);
   1579 				buddaboom++;
   1580 			}
   1581 			if (sp->req_header.rqs_flags & RQSFLAG_BADPACKET) {
   1582 				PRINTF("%s: bad request packet\n",
   1583 				    isp->isp_name);
   1584 				buddaboom++;
   1585 			}
   1586 		}
   1587 		if (sp->req_handle > RQUEST_QUEUE_LEN || sp->req_handle < 1) {
   1588 			PRINTF("%s: bad request handle %d\n", isp->isp_name,
   1589 				sp->req_handle);
   1590 			ISP_WRITE(isp, INMAILBOX5, optr);
   1591 			continue;
   1592 		}
   1593 		xs = (void *) isp->isp_xflist[sp->req_handle - 1];
   1594 		if (xs == NULL) {
   1595 			PRINTF("%s: NULL xs in xflist (handle %x)\n",
   1596 			    isp->isp_name, sp->req_handle);
   1597 			isp_dumpxflist(isp);
   1598 			ISP_WRITE(isp, INMAILBOX5, optr);
   1599 			continue;
   1600 		}
   1601 		isp->isp_xflist[sp->req_handle - 1] = NULL;
   1602 		if (sp->req_status_flags & RQSTF_BUS_RESET) {
   1603 			isp->isp_sendmarker = 1;
   1604 		}
   1605 		if (buddaboom) {
   1606 			XS_SETERR(xs, HBA_BOTCH);
   1607 		}
   1608 		XS_STS(xs) = sp->req_scsi_status & 0xff;
   1609 		if (isp->isp_type & ISP_HA_SCSI) {
   1610 			if (sp->req_state_flags & RQSF_GOT_SENSE) {
   1611 				MEMCPY(XS_SNSP(xs), sp->req_sense_data,
   1612 					XS_SNSLEN(xs));
   1613 				XS_SNS_IS_VALID(xs);
   1614 			}
   1615 			/*
   1616 			 * A new synchronous rate was negotiated for this
   1617 			 * target. Mark state such that we'll go look up
   1618 			 * that which has changed later.
   1619 			 */
   1620 			if (sp->req_status_flags & RQSTF_NEGOTIATION) {
   1621 				sdparam *sdp = isp->isp_param;
   1622 				isp->isp_update = 1;
   1623 				sdp->isp_devparam[XS_TGT(xs)].dev_refresh = 1;
   1624 			}
   1625 		} else {
   1626 			if (XS_STS(xs) == SCSI_CHECK) {
   1627 				XS_SNS_IS_VALID(xs);
   1628 				MEMCPY(XS_SNSP(xs), sp->req_sense_data,
   1629 					XS_SNSLEN(xs));
   1630 				sp->req_state_flags |= RQSF_GOT_SENSE;
   1631 			}
   1632 		}
   1633 		if (XS_NOERR(xs) && XS_STS(xs) == SCSI_BUSY) {
   1634 			XS_SETERR(xs, HBA_TGTBSY);
   1635 		}
   1636 
   1637 		if (sp->req_header.rqs_entry_type == RQSTYPE_RESPONSE) {
   1638 			if (XS_NOERR(xs)) {
   1639 			    if (sp->req_completion_status != RQCS_COMPLETE) {
   1640 				isp_parse_status(isp, sp, xs);
   1641 			    } else {
   1642 				XS_SETERR(xs, HBA_NOERROR);
   1643 			    }
   1644 			}
   1645 		} else {
   1646 			PRINTF("%s: unknown return %x\n", isp->isp_name,
   1647 				sp->req_header.rqs_entry_type);
   1648 			if (XS_NOERR(xs)) {
   1649 				XS_SETERR(xs, HBA_BOTCH);
   1650 			}
   1651 		}
   1652 		if (isp->isp_type & ISP_HA_SCSI) {
   1653 			XS_RESID(xs) = sp->req_resid;
   1654 		} else if (sp->req_scsi_status & RQCS_RU) {
   1655 			XS_RESID(xs) = sp->req_resid;
   1656 			IDPRINTF(4, ("%s: cnt %d rsd %d\n", isp->isp_name,
   1657 				XS_XFRLEN(xs), sp->req_resid));
   1658 		}
   1659 		if (XS_XFRLEN(xs)) {
   1660 			ISP_DMAFREE(isp, xs, sp->req_handle - 1);
   1661 		}
   1662 		/*
   1663 		 * XXX: If we have a check condition, but no Sense Data,
   1664 		 * XXX: mark it as an error (ARQ failed). We need to
   1665 		 * XXX: to do a more distinct job because there may
   1666 		 * XXX: cases where ARQ is disabled.
   1667 		 */
   1668 		if (XS_STS(xs) == SCSI_CHECK && !(XS_IS_SNS_VALID(xs))) {
   1669 			if (XS_NOERR(xs)) {
   1670 				PRINTF("%s: ARQ failure for target %d lun %d\n",
   1671 				    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   1672 				XS_SETERR(xs, HBA_ARQFAIL);
   1673 			}
   1674 		}
   1675 		if ((isp->isp_dblev >= 5) ||
   1676 		    (isp->isp_dblev > 2 && !XS_NOERR(xs))) {
   1677 			PRINTF("%s(%d.%d): FIN%d dl%d resid%d STS %x",
   1678 			    isp->isp_name, XS_TGT(xs), XS_LUN(xs),
   1679 			    sp->req_header.rqs_seqno, XS_XFRLEN(xs),
   1680 			    XS_RESID(xs), XS_STS(xs));
   1681 			if (sp->req_state_flags & RQSF_GOT_SENSE) {
   1682 				PRINTF(" Skey: %x", XS_SNSKEY(xs));
   1683 				if (!(XS_IS_SNS_VALID(xs))) {
   1684 					PRINTF(" BUT NOT SET");
   1685 				}
   1686 			}
   1687 			PRINTF(" XS_ERR=0x%x\n", (unsigned int) XS_ERR(xs));
   1688 		}
   1689 
   1690 		if (isp->isp_nactive > 0)
   1691 		    isp->isp_nactive--;
   1692 		complist[ndone++] = xs;	/* defer completion call until later */
   1693 	}
   1694 
   1695 	/*
   1696 	 * If we looked at any commands, then it's valid to find out
   1697 	 * what the outpointer is. It also is a trigger to update the
   1698 	 * ISP's notion of what we've seen so far.
   1699 	 */
   1700 	if (nlooked) {
   1701 		ISP_WRITE(isp, INMAILBOX5, optr);
   1702 		isp->isp_reqodx = ISP_READ(isp, OUTMAILBOX4);
   1703 	}
   1704 	isp->isp_residx = optr;
   1705 	for (i = 0; i < ndone; i++) {
   1706 		xs = complist[i];
   1707 		if (xs) {
   1708 			XS_CMD_DONE(xs);
   1709 		}
   1710 	}
   1711 	return (1);
   1712 }
   1713 
   1714 /*
   1715  * Support routines.
   1716  */
   1717 
   1718 static int
   1719 isp_parse_async(isp, mbox)
   1720 	struct ispsoftc *isp;
   1721 	int mbox;
   1722 {
   1723 	u_int32_t fast_post_handle = 0;
   1724 
   1725 	switch (mbox) {
   1726 	case MBOX_COMMAND_COMPLETE:	/* sometimes these show up */
   1727 		break;
   1728 	case ASYNC_BUS_RESET:
   1729 		isp_async(isp, ISPASYNC_BUS_RESET, NULL);
   1730 		isp->isp_sendmarker = 1;
   1731 #ifdef	ISP_TARGET_MODE
   1732 		isp_notify_ack(isp, NULL);
   1733 #endif
   1734 		break;
   1735 
   1736 	case ASYNC_SYSTEM_ERROR:
   1737 		mbox = ISP_READ(isp, OUTMAILBOX1);
   1738 		PRINTF("%s: Internal FW Error @ RISC Addr 0x%x\n",
   1739 		    isp->isp_name, mbox);
   1740 		isp_restart(isp);
   1741 		/* no point continuing after this */
   1742 		return (-1);
   1743 
   1744 	case ASYNC_RQS_XFER_ERR:
   1745 		PRINTF("%s: Request Queue Transfer Error\n", isp->isp_name);
   1746 		break;
   1747 
   1748 	case ASYNC_RSP_XFER_ERR:
   1749 		PRINTF("%s: Response Queue Transfer Error\n", isp->isp_name);
   1750 		break;
   1751 
   1752 	case ASYNC_QWAKEUP:
   1753 		/* don't need to be chatty */
   1754 		mbox = ISP_READ(isp, OUTMAILBOX4);
   1755 		break;
   1756 
   1757 	case ASYNC_TIMEOUT_RESET:
   1758 		PRINTF("%s: timeout initiated SCSI bus reset\n", isp->isp_name);
   1759 		isp->isp_sendmarker = 1;
   1760 #ifdef	ISP_TARGET_MODE
   1761 		isp_notify_ack(isp, NULL);
   1762 #endif
   1763 		break;
   1764 
   1765 	case ASYNC_DEVICE_RESET:
   1766 		isp->isp_sendmarker = 1;
   1767 		PRINTF("%s: device reset\n", isp->isp_name);
   1768 #ifdef	ISP_TARGET_MODE
   1769 		isp_notify_ack(isp, NULL);
   1770 #endif
   1771 		break;
   1772 
   1773 	case ASYNC_EXTMSG_UNDERRUN:
   1774 		PRINTF("%s: extended message underrun\n", isp->isp_name);
   1775 		break;
   1776 
   1777 	case ASYNC_SCAM_INT:
   1778 		PRINTF("%s: SCAM interrupt\n", isp->isp_name);
   1779 		break;
   1780 
   1781 	case ASYNC_HUNG_SCSI:
   1782 		PRINTF("%s: stalled SCSI Bus after DATA Overrun\n",
   1783 		    isp->isp_name);
   1784 		/* XXX: Need to issue SCSI reset at this point */
   1785 		break;
   1786 
   1787 	case ASYNC_KILLED_BUS:
   1788 		PRINTF("%s: SCSI Bus reset after DATA Overrun\n",
   1789 		    isp->isp_name);
   1790 		break;
   1791 
   1792 	case ASYNC_BUS_TRANSIT:
   1793 		mbox = ISP_READ(isp, OUTMAILBOX2);
   1794 		switch (mbox & 0x1c00) {
   1795 		case SXP_PINS_LVD_MODE:
   1796 			PRINTF("%s: Transition to LVD mode\n", isp->isp_name);
   1797 			((sdparam *)isp->isp_param)->isp_diffmode = 0;
   1798 			((sdparam *)isp->isp_param)->isp_ultramode = 0;
   1799 			((sdparam *)isp->isp_param)->isp_lvdmode = 1;
   1800 			break;
   1801 		case SXP_PINS_HVD_MODE:
   1802 			PRINTF("%s: Transition to Differential mode\n",
   1803 			    isp->isp_name);
   1804 			((sdparam *)isp->isp_param)->isp_diffmode = 1;
   1805 			((sdparam *)isp->isp_param)->isp_ultramode = 0;
   1806 			((sdparam *)isp->isp_param)->isp_lvdmode = 0;
   1807 			break;
   1808 		case SXP_PINS_SE_MODE:
   1809 			PRINTF("%s: Transition to Single Ended mode\n",
   1810 			    isp->isp_name);
   1811 			((sdparam *)isp->isp_param)->isp_diffmode = 0;
   1812 			((sdparam *)isp->isp_param)->isp_ultramode = 1;
   1813 			((sdparam *)isp->isp_param)->isp_lvdmode = 0;
   1814 			break;
   1815 		default:
   1816 			PRINTF("%s: Transition to unknown mode 0x%x\n",
   1817 			    isp->isp_name, mbox);
   1818 			break;
   1819 		}
   1820 		/*
   1821 		 * XXX: Set up to renegotiate again!
   1822 		 */
   1823 		isp->isp_sendmarker = 1;
   1824 		break;
   1825 
   1826 	case ASYNC_CMD_CMPLT:
   1827 		fast_post_handle = (ISP_READ(isp, OUTMAILBOX2) << 16) |
   1828 		    ISP_READ(isp, OUTMAILBOX1);
   1829 		IDPRINTF(3, ("%s: fast post completion of %u\n", isp->isp_name,
   1830 		    fast_post_handle));
   1831 		break;
   1832 
   1833 	case ASYNC_CTIO_DONE:
   1834 		/* Should only occur when Fast Posting Set for 2100s */
   1835 		PRINTF("%s: CTIO done\n", isp->isp_name);
   1836 		break;
   1837 
   1838 	case ASYNC_LIP_OCCURRED:
   1839 		isp->isp_sendmarker = 1;
   1840 		PRINTF("%s: LIP occurred\n", isp->isp_name);
   1841 		break;
   1842 
   1843 	case ASYNC_LOOP_UP:
   1844 		isp->isp_sendmarker = 1;
   1845 		isp_async(isp, ISPASYNC_LOOP_UP, NULL);
   1846 		break;
   1847 
   1848 	case ASYNC_LOOP_DOWN:
   1849 		isp_async(isp, ISPASYNC_LOOP_DOWN, NULL);
   1850 		break;
   1851 
   1852 	case ASYNC_LOOP_RESET:
   1853 		isp->isp_sendmarker = 1;
   1854 		PRINTF("%s: Loop RESET\n", isp->isp_name);
   1855 #ifdef	ISP_TARGET_MODE
   1856 		isp_notify_ack(isp, NULL);
   1857 #endif
   1858 		break;
   1859 
   1860 	case ASYNC_PDB_CHANGED:
   1861 		isp->isp_sendmarker = 1;
   1862 		isp_mark_getpdb_all(isp);
   1863 		PRINTF("%s: Port Database Changed\n", isp->isp_name);
   1864 		break;
   1865 
   1866 	case ASYNC_CHANGE_NOTIFY:
   1867 		break;
   1868 
   1869 	default:
   1870 		PRINTF("%s: unknown async code 0x%x\n", isp->isp_name, mbox);
   1871 		break;
   1872 	}
   1873 	return (fast_post_handle);
   1874 }
   1875 
   1876 static int
   1877 isp_handle_other_response(isp, sp, optrp)
   1878 	struct ispsoftc *isp;
   1879 	ispstatusreq_t *sp;
   1880 	u_int8_t *optrp;
   1881 {
   1882 	u_int8_t iptr, optr;
   1883 	int reqsize = 0;
   1884 	void *ireqp = NULL;
   1885 #ifdef	ISP_TARGET_MODE
   1886 	union {
   1887 		at_entry_t	*atio;
   1888 		at2_entry_t	*at2io;
   1889 		ct_entry_t	*ctio;
   1890 		ct2_entry_t	*ct2io;
   1891 		lun_entry_t	*lunen;
   1892 		in_entry_t	*inot;
   1893 		in_fcentry_t	*inot_fc;
   1894 		na_entry_t	*nack;
   1895 		na_fcentry_t	*nack_fc;
   1896 		void		*voidp;
   1897 #define	atio	un.atio
   1898 #define	at2io	un.at2io
   1899 #define	ctio	un.ctio
   1900 #define	ct2io	un.ct2io
   1901 #define	lunen	un.lunen
   1902 #define	inot	un.inot
   1903 #define	inot_fc	un.inot_fc
   1904 #define	nack	un.nack
   1905 #define	nack_fc	un.nack_fc
   1906 	} un;
   1907 
   1908 	un.voidp = sp;
   1909 #endif
   1910 
   1911 
   1912 	switch (sp->req_header.rqs_entry_type) {
   1913 	case RQSTYPE_REQUEST:
   1914 		return (-1);
   1915 #ifdef	ISP_TARGET_MODE
   1916 	case RQSTYPE_NOTIFY_ACK:
   1917 	{
   1918 		static const char *f =
   1919 			"%s: Notify Ack Status 0x%x Sequence Id 0x%x\n"
   1920 		/*
   1921 		 * The ISP is acknowleding our ack of an Immediate Notify.
   1922 		 */
   1923 		if (isp->isp_type & ISP_HA_FC) {
   1924 			PRINTF(f, isp->isp_name,
   1925 			    nack_fc->na-status, nack_fc->na_seqid);
   1926 		} else {
   1927 			PRINTF(f, isp->isp_name,
   1928 			    nack->na_status, nack->na_seqid);
   1929 		}
   1930 		break;
   1931 	}
   1932 	case RQSTYPE_NOTIFY:
   1933 	{
   1934 		u_int16_t seqid, status;
   1935 
   1936 		/*
   1937 		 * Either the ISP received a SCSI message it cannot handle
   1938 		 * or some other out of band condition (e.g., Port Logout)
   1939 		 * or it is returning an Immediate Notify entry we sent.
   1940 		 */
   1941 		if (isp->isp_type & ISP_HA_FC) {
   1942 			status = inot_fc->status;
   1943 			seqid = inot_fc->in_seqid;
   1944 		} else {
   1945 			status = inot->status;
   1946 			seqid = inot->seqid & 0xff;
   1947 		}
   1948 		PRINTF("%s: Immediate Notify Status 0x%x Sequence Id 0x%x\n",
   1949 		    isp->isp_name, status, seqid);
   1950 
   1951 		switch (status) {
   1952 		case IN_MSG_RECEIVED:
   1953 		case IN_IDE_RECEIVED:
   1954 			ptisp_got_msg(ptp, &inot);
   1955 			break;
   1956 		case IN_RSRC_UNAVAIL:
   1957 			PRINTF("%s: Firmware out of ATIOs\n", isp->isp_name);
   1958 			break;
   1959 		case IN_ABORT_TASK:
   1960 			PRINTF("%s: Abort Task iid %d rx_id 0x%x\n",
   1961 			    inot_fc->in_iid, seqid);
   1962 			break;
   1963 		case IN_PORT_LOGOUT:
   1964 			PRINTF("%s: Port Logout for Initiator %d\n",
   1965 			    isp->isp_name, inot_fc->in_iid);
   1966 			break;
   1967 		default:
   1968 			PRINTF("%s: bad status (0x%x) in Immediate Notify\n",
   1969 			    isp->isp_name, status);
   1970 			break;
   1971 
   1972 		}
   1973 		isp_notify_ack(isp, un.voidp);
   1974 		reqsize = 0;
   1975 		break;
   1976 	}
   1977 	case RQSTYPE_ENABLE_LUN:
   1978 	case RQSTYPE_MODIFY_LUN:
   1979 		if (lunen->req_status != 1) {
   1980 		    PRINTF("%s: ENABLE/MODIFY LUN returned status 0x%x\n",
   1981 			isp->isp_name, lunen->req_status);
   1982 		}
   1983 		break;
   1984 	case RQSTYPE_ATIO2:
   1985 	{
   1986 		fcparam *fcp = isp->isp_param;
   1987 		ispctiot2_t local, *ct2 = NULL;
   1988 		ispatiot2_t *at2 = (ispatiot2_t *) sp;
   1989 		int s, lun;
   1990 
   1991 #ifdef	ISP2100_SCCLUN
   1992 		lun = at2->req_scclun;
   1993 #else
   1994 		lun = at2->req_lun;
   1995 #endif
   1996 		PRINTF("%s: atio2 loopid %d for lun %d rxid 0x%x flags0x%x "
   1997 		    "tflags0x%x ecodes0x%x rqstatus0x%x\n", isp->isp_name,
   1998 		    at2->req_initiator, lun, at2->req_rxid,
   1999 		    at2->req_flags, at2->req_taskflags, at2->req_execodes,
   2000 		    at2->req_status);
   2001 
   2002 		switch (at2->req_status & ~ATIO_SENSEVALID) {
   2003 		case ATIO_PATH_INVALID:
   2004 			PRINTF("%s: ATIO2 Path Invalid\n", isp->isp_name);
   2005 			break;
   2006 		case ATIO_NOCAP:
   2007 			PRINTF("%s: ATIO2 No Cap\n", isp->isp_name);
   2008 			break;
   2009 		case ATIO_BDR_MSG:
   2010 			PRINTF("%s: ATIO2 BDR Received\n", isp->isp_name);
   2011 			break;
   2012 		case ATIO_CDB_RECEIVED:
   2013 			ct2 = &local;
   2014 			break;
   2015 		default:
   2016 			PRINTF("%s: unknown req_status 0x%x\n", isp->isp_name,
   2017 			    at2->req_status);
   2018 			break;
   2019 		}
   2020 		if (ct2 == NULL) {
   2021 			/*
   2022 			 * Just do an ACCEPT on this fellow.
   2023 			 */
   2024 			at2->req_header.rqs_entry_type = RQSTYPE_ATIO2;
   2025 			at2->req_header.rqs_flags = 0;
   2026 			at2->req_flags = 1;
   2027 			ireqp = at2;
   2028 			reqsize = sizeof (*at2);
   2029 			break;
   2030 		}
   2031 		PRINTF("%s: datalen %d cdb0=0x%x\n", isp->isp_name,
   2032 		    at2->req_datalen, at2->req_cdb[0]);
   2033 		MEMZERO((void *) ct2, sizeof (*ct2));
   2034 		ct2->req_header.rqs_entry_type = RQSTYPE_CTIO2;
   2035 		ct2->req_header.rqs_entry_count = 1;
   2036 		ct2->req_header.rqs_flags = 0;
   2037 		ct2->req_header.rqs_seqno = isp->isp_seqno++;
   2038 		ct2->req_handle = (at2->req_initiator << 16) | lun;
   2039 #ifndef	ISP2100_SCCLUN
   2040 		ct2->req_lun = lun;
   2041 #endif
   2042 		ct2->req_initiator = at2->req_initiator;
   2043 		ct2->req_rxid = at2->req_rxid;
   2044 
   2045 		ct2->req_flags = CTIO_SEND_STATUS;
   2046 		switch (at2->req_cdb[0]) {
   2047 		case 0x0:		/* TUR */
   2048 			ct2->req_flags |= CTIO_NODATA | CTIO2_SMODE0;
   2049 			ct2->req_m.mode0.req_scsi_status = CTIO2_STATUS_VALID;
   2050 			break;
   2051 
   2052 		case 0x3:		/* REQUEST SENSE */
   2053 		case 0x12:		/* INQUIRE */
   2054 			ct2->req_flags |= CTIO_SEND_DATA | CTIO2_SMODE0;
   2055 			ct2->req_m.mode0.req_scsi_status = CTIO2_STATUS_VALID;
   2056 			ct2->req_seg_count = 1;
   2057 			if (at2->req_cdb[0] == 0x12) {
   2058 				s = sizeof (tgtiqd);
   2059 				MEMCPY(fcp->isp_scratch, tgtiqd, s);
   2060 			} else {
   2061 				s = at2->req_datalen;
   2062 				MEMZERO(fcp->isp_scratch, s);
   2063 			}
   2064 			ct2->req_m.mode0.req_dataseg[0].ds_base =
   2065 			    fcp->isp_scdma;
   2066 			ct2->req_m.mode0.req_dataseg[0].ds_count = s;
   2067 			ct2->req_m.mode0.req_datalen = s;
   2068 #if	1
   2069 			if (at2->req_datalen < s) {
   2070 				ct2->req_m.mode1.req_scsi_status |=
   2071 				    CTIO2_RESP_VALID|CTIO2_RSPOVERUN;
   2072 			} else if (at2->req_datalen > s) {
   2073 				ct2->req_m.mode1.req_scsi_status |=
   2074 				    CTIO2_RESP_VALID|CTIO2_RSPUNDERUN;
   2075 			}
   2076 #endif
   2077 			break;
   2078 
   2079 		default:		/* ALL OTHERS */
   2080 			ct2->req_flags |= CTIO_NODATA | CTIO2_SMODE1;
   2081 			ct2->req_m.mode1.req_scsi_status = 0;
   2082 #if	1
   2083 			if (at2->req_datalen) {
   2084 				ct2->req_m.mode1.req_scsi_status |=
   2085 				    CTIO2_RSPUNDERUN;
   2086 #if	BYTE_ORDER == BIG_ENDIAN
   2087 				ct2->req_resid[1] = at2->req_datalen & 0xff;
   2088 				ct2->req_resid[0] =
   2089 					(at2->req_datalen >> 8) & 0xff;
   2090 				ct2->req_resid[3] =
   2091 					(at2->req_datalen >> 16) & 0xff;
   2092 				ct2->req_resid[2] =
   2093 					(at2->req_datalen >> 24) & 0xff;
   2094 #else
   2095 				ct2->req_resid[0] = at2->req_datalen & 0xff;
   2096 				ct2->req_resid[1] =
   2097 					(at2->req_datalen >> 8) & 0xff;
   2098 				ct2->req_resid[2] =
   2099 					(at2->req_datalen >> 16) & 0xff;
   2100 				ct2->req_resid[3] =
   2101 					(at2->req_datalen >> 24) & 0xff;
   2102 #endif
   2103 			}
   2104 #endif
   2105 			if ((at2->req_status & ATIO_SENSEVALID) == 0) {
   2106 				ct2->req_m.mode1.req_sense_len = 18;
   2107 				ct2->req_m.mode1.req_scsi_status |= 2;
   2108 				ct2->req_m.mode1.req_response[0] = 0x70;
   2109 				ct2->req_m.mode1.req_response[2] = 0x2;
   2110 			} else {
   2111 				ct2->req_m.mode1.req_sense_len = 18;
   2112 				ct2->req_m.mode1.req_scsi_status |=
   2113 				    at2->req_scsi_status;
   2114 				MEMCPY(ct2->req_m.mode1.req_response,
   2115 				    at2->req_sense, sizeof (at2->req_sense));
   2116 			}
   2117 			break;
   2118 		}
   2119 		reqsize = sizeof (*ct2);
   2120 		ireqp = ct2;
   2121 		break;
   2122 	}
   2123 	case RQSTYPE_CTIO2:
   2124 	{
   2125 		ispatiot2_t *at2;
   2126 		ispctiot2_t *ct2 = (ispctiot2_t *) sp;
   2127 		PRINTF("%s: CTIO2 returned status 0x%x\n", isp->isp_name,
   2128 		    ct2->req_status);
   2129 		/*
   2130 		 * Return the ATIO to the board.
   2131 		 */
   2132 		at2 = (ispatiot2_t *) sp;
   2133 		at2->req_header.rqs_entry_type = RQSTYPE_ATIO2;
   2134 		at2->req_header.rqs_entry_count = 1;
   2135 		at2->req_header.rqs_flags = 0;
   2136 		at2->req_header.rqs_seqno = isp->isp_seqno++;
   2137 		at2->req_status = 1;
   2138 		reqsize = sizeof (*at2);
   2139 		ireqp = at2;
   2140 		break;
   2141 	}
   2142 #undef	atio
   2143 #undef	at2io
   2144 #undef	ctio
   2145 #undef	ct2io
   2146 #undef	lunen
   2147 #undef	inot
   2148 #undef	inot_fc
   2149 #undef	nack
   2150 #undef	nack_fc
   2151 #endif
   2152 	default:
   2153 		PRINTF("%s: other response type %x\n", isp->isp_name,
   2154 		    sp->req_header.rqs_entry_type);
   2155 		break;
   2156 	}
   2157 	if (reqsize) {
   2158 		void *reqp;
   2159 		optr = isp->isp_reqodx = ISP_READ(isp, OUTMAILBOX4);
   2160 		iptr = isp->isp_reqidx;
   2161 		reqp = (void *) ISP_QUEUE_ENTRY(isp->isp_rquest, iptr);
   2162 		iptr = ISP_NXT_QENTRY(iptr, RQUEST_QUEUE_LEN);
   2163 		if (iptr == optr) {
   2164 			PRINTF("%s: Request Queue Overflow other response\n",
   2165 			    isp->isp_name);
   2166 		} else {
   2167 			MEMCPY(reqp, ireqp, reqsize);
   2168 			ISP_WRITE(isp, INMAILBOX4, iptr);
   2169 			isp->isp_reqidx = iptr;
   2170 		}
   2171 	}
   2172 	return (0);
   2173 }
   2174 
   2175 #ifdef	ISP_TARGET_MODE
   2176 
   2177 static void isp_tmd_newcmd_dflt __P((void *, tmd_cmd_t *));
   2178 static void isp_tmd_event_dflt __P((void *, int));
   2179 static void isp_tmd_notify_dflt __P((void *, tmd_notify_t *));
   2180 
   2181 static void isp_tgt_data_xfer __P ((tmd_cmd_t *));
   2182 static void isp_tgt_endcmd __P ((tmd_cmd_t *, u_int8_t));
   2183 static void isp_tgt_done __P ((tmd_cmd_t *));
   2184 
   2185 static void
   2186 isp_tmd_newcmd_dflt(arg0, cmdp)
   2187 	void *arg0;
   2188 	tmd_cmd_t *cmdp;
   2189 {
   2190 }
   2191 
   2192 static void
   2193 isp_tmd_event_dflt(arg0, event)
   2194 	void *arg0;
   2195 	int event;
   2196 {
   2197 }
   2198 
   2199 static void
   2200 isp_tmd_notify_dflt(arg0, npt)
   2201 	void *arg0;
   2202 	tmd_notify_t *npt;
   2203 {
   2204 }
   2205 
   2206 /*
   2207  * Locks held, and ints disabled (if FC).
   2208  *
   2209  * XXX: SETUP ONLY FOR INITIAL ENABLING RIGHT NOW
   2210  */
   2211 static int
   2212 isp_modify_lun(isp, lun, icnt, ccnt)
   2213 	struct ispsoftc *isp;
   2214 	int lun;	/* logical unit to enable, modify, or disable */
   2215 	int icnt;	/* immediate notify count */
   2216 	int ccnt;	/* command count */
   2217 {
   2218 	isplun_t *ip = NULL;
   2219 	u_int8_t iptr, optr;
   2220 
   2221 	optr = isp->isp_reqodx = ISP_READ(isp, OUTMAILBOX4);
   2222 	iptr = isp->isp_reqidx;
   2223 	ip = (isplun_t *) ISP_QUEUE_ENTRY(isp->isp_rquest, iptr);
   2224 	iptr = ISP_NXT_QENTRY(iptr, RQUEST_QUEUE_LEN);
   2225 	if (iptr == optr) {
   2226 		PRINTF("%s: Request Queue Overflow in isp_modify_lun\n",
   2227 		    isp->isp_name);
   2228 		return (-1);
   2229 	}
   2230 
   2231 	MEMZERO((void *) ip, sizeof (*ip));
   2232 	ip->req_header.rqs_entry_type = RQSTYPE_ENABLE_LUN;
   2233 	ip->req_header.rqs_entry_count = 1;
   2234 	ip->req_header.rqs_seqno = isp->isp_seqno++;
   2235 	ip->req_handle = RQSTYPE_ENABLE_LUN;
   2236 	if (isp->isp_type & ISP_HA_SCSI) {
   2237 		ip->req_lun = lun;
   2238 	}
   2239 	ip->req_cmdcount = ccnt;
   2240 	ip->req_imcount = icnt;
   2241 	ip->req_timeout = 0;	/* default 30 seconds */
   2242 	ISP_WRITE(isp, INMAILBOX4, iptr);
   2243 	isp->isp_reqidx = iptr;
   2244 	return (0);
   2245 }
   2246 
   2247 static void
   2248 isp_notify_ack(isp, ptrp)
   2249 	struct ispsoftc *isp;
   2250 	void *ptrp;
   2251 {
   2252 	void *reqp;
   2253 	u_int8_t iptr, optr;
   2254 	union {
   2255 		na_fcentry_t _naf;
   2256 		na_entry_t _nas;
   2257 	} un;
   2258 
   2259 	MEMZERO((caddr_t)&un, sizeof (un));
   2260 	un._nas.na_header.rqs_entry_type = RQSTYPE_NOTIFY_ACK;
   2261 	un._nas.na_header.rqs_entry_count = 1;
   2262 
   2263 	if (isp->isp_type & ISP_HA_FC) {
   2264 		na_fcentry_t *na = &un._nas;
   2265 		if (ptrp) {
   2266 			in_fcentry_t *inp = ptrp;
   2267 			na->na_iid = inp->in_iid;
   2268 			na->na_lun = inp->in_lun;
   2269 			na->na_task_flags = inp->in_task_flags;
   2270 			na->na_seqid = inp->in_seqid;
   2271 			na->na_status = inp->in_status;
   2272 		} else {
   2273 			na->na_flags = NAFC_RST_CLRD;
   2274 		}
   2275 	} else {
   2276 		na_entry_t *na = &un._nas;
   2277 		if (ptrp) {
   2278 			in_entry_t *inp = ptrp;
   2279 			na->na_iid = inp->in_iid;
   2280 			na->na_lun = inp->in_lun;
   2281 			na->na_tgt = inp->in_tgt;
   2282 			na->na_seqid = inp->in_seqid;
   2283 		} else {
   2284 			na->na_flags = NA_RST_CLRD;
   2285 		}
   2286 	}
   2287 	optr = isp->isp_reqodx = ISP_READ(isp, OUTMAILBOX4);
   2288 	iptr = isp->isp_reqidx;
   2289 	reqp = (void *) ISP_QUEUE_ENTRY(isp->isp_rquest, iptr);
   2290 	iptr = ISP_NXT_QENTRY(iptr, RQUEST_QUEUE_LEN);
   2291 	if (iptr == optr) {
   2292 		PRINTF("%s: Request Queue Overflow For isp_notify_ack\n",
   2293 		    isp->isp_name);
   2294 	} else {
   2295 		MEMCPY(reqp, ireqp, sizeof (un));
   2296 		ISP_WRITE(isp, INMAILBOX4, iptr);
   2297 		isp->isp_reqidx = iptr;
   2298 	}
   2299 }
   2300 
   2301 /*
   2302  * These are dummy stubs for now until the outside framework is plugged in.
   2303  */
   2304 
   2305 static void
   2306 isp_handle_atio (isp, aep)
   2307 	struct ispsoftc *isp;
   2308 	at_entry_t *aep;
   2309 {
   2310 	int status, connected;
   2311 	tmd_cmd_t local, *cdp = &local;
   2312 
   2313 	/*
   2314 	 * Get the ATIO status and see if we're still connected.
   2315 	 */
   2316 	status = aep->at_status;
   2317 	connected = ((aep->at_flags & AT_NODISC) != 0);
   2318 
   2319 	PRINTF("%s: ATIO status=0x%x, connected=%d\n", isp->isp_name,
   2320 	    status, connected);
   2321 
   2322 	/*
   2323 	 * The firmware status (except for the SenseValid bit) indicates
   2324 	 * why this ATIO was sent to us.
   2325 	 * If SenseValid is set, the firware has recommended Sense Data.
   2326 	 * If the Disconnects Disabled bit is set in the flags field,
   2327 	 * we're still connected on the SCSI bus - i.e. the initiator
   2328 	 * did not set DiscPriv in the identify message. We don't care
   2329 	 * about this so it's ignored.
   2330 	 */
   2331 	switch (status & ~TGTSVALID) {
   2332 	case AT_PATH_INVALID:
   2333 		/*
   2334 		 * ATIO rejected by the firmware due to disabled lun.
   2335 		 */
   2336 		PRINTF("%s: Firmware rejected ATIO for disabled lun %d\n",
   2337 		    isp->isp_name, aep->at_lun);
   2338 		break;
   2339 
   2340 	case AT_PHASE_ERROR:
   2341 		/*
   2342 		 * Bus Pase Sequence error.
   2343 		 *
   2344 		 * The firmware should have filled in the correct
   2345 		 * sense data.
   2346 		 */
   2347 
   2348 
   2349 		if (status & TGTSVALID) {
   2350 			MEMCPY(&cdp->cd_sensedata, aep->at_sense,
   2351 			    sizeof (cdp->cd_sensedata));
   2352 			PRINTF("%s: Bus Phase Sequence error key 0x%x\n",
   2353 			    isp->isp_name, cdp->cd_sensedata[2] & 0xf);
   2354 		} else {
   2355 			PRINTF("%s: Bus Phase Sequence With No Sense\n",
   2356 			    isp->isp_name);
   2357 		}
   2358 		(*isp->isp_tmd_newcmd)(isp, cdp);
   2359 		break;
   2360 
   2361 	case AT_NOCAP:
   2362 		/*
   2363 		 * Requested Capability not available
   2364 		 * We sent an ATIO that overflowed the firmware's
   2365 		 * command resource count.
   2366 		 */
   2367 		PRINTF("%s: Firmware rejected ATIO, command count overflow\n",
   2368 		    isp->isp_name);
   2369 		break;
   2370 
   2371 	case AT_BDR_MSG:
   2372 		/*
   2373 		 * If we send an ATIO to the firmware to increment
   2374 		 * its command resource count, and the firmware is
   2375 		 * recovering from a Bus Device Reset, it returns
   2376 		 * the ATIO with this status.
   2377 		 */
   2378 		PRINTF("%s: ATIO returned with BDR received\n", isp->isp_name);
   2379 		break;
   2380 
   2381 	case AT_CDB:
   2382 		/*
   2383 		 * New CDB
   2384 		 */
   2385 		cdp->cd_hba = isp;
   2386 		cdp->cd_iid = aep->at_iid;
   2387 		cdp->cd_tgt = aep->at_tgt;
   2388 		cdp->cd_lun = aep->at_lun;
   2389 		cdp->cd_tagtype = aep->at_tag_type;
   2390 		cdp->cd_tagval = aep->at_tag_val;
   2391 		MEMCPY(cdp->cd_cdb, aep->at_cdb, 16);
   2392 		PRINTF("%s: CDB 0x%x itl %d/%d/%d\n", isp->isp_name,
   2393 		    cdp->cd_cdb[0], cdp->cd_iid, cdp->cd_tgt, cdp->cd_lun);
   2394 		(*isp->isp_tmd_newcmd)(isp, cdp);
   2395 		break;
   2396 
   2397 	default:
   2398 		PRINTF("%s: Unknown status (0x%x) in ATIO\n",
   2399 		    isp->isp_name, status);
   2400 		cdp->cd_hba = isp;
   2401 		cdp->cd_iid = aep->at_iid;
   2402 		cdp->cd_tgt = aep->at_tgt;
   2403 		cdp->cd_lun = aep->at_lun;
   2404 		cdp->cd_tagtype = aep->at_tag_type;
   2405 		cdp->cd_tagval = aep->at_tag_val;
   2406 		isp_tgtcmd_done(cdp);
   2407 		break;
   2408 	}
   2409 }
   2410 
   2411 static void
   2412 isp_handle_atio2(isp, aep)
   2413 	struct ispsoftc *isp;
   2414 	at2_entry_t *aep;
   2415 {
   2416 	int status;
   2417 	tmd_cmd_t local, *cdp = &local;
   2418 
   2419 	/*
   2420 	 * Get the ATIO2 status.
   2421 	 */
   2422 	status = aep->at_status;
   2423 	PRINTD("%s: ATIO2 status=0x%x\n", status);
   2424 
   2425 	/*
   2426 	 * The firmware status (except for the SenseValid bit) indicates
   2427 	 * why this ATIO was sent to us.
   2428 	 * If SenseValid is set, the firware has recommended Sense Data.
   2429 	 */
   2430 	switch (status & ~TGTSVALID) {
   2431 	case AT_PATH_INVALID:
   2432 		/*
   2433 		 * ATIO rejected by the firmware due to disabled lun.
   2434 		 */
   2435 		PRINTF("%s: Firmware rejected ATIO2 for disabled lun %d\n",
   2436 		    isp->isp_name, aep->at_lun);
   2437 		break;
   2438 
   2439 	case AT_NOCAP:
   2440 		/*
   2441 		 * Requested Capability not available
   2442 		 * We sent an ATIO that overflowed the firmware's
   2443 		 * command resource count.
   2444 		 */
   2445 		PRINTF("%s: Firmware rejected ATIO2, command count overflow\n",
   2446 		    isp->isp_name);
   2447 		break;
   2448 
   2449 	case AT_BDR_MSG:
   2450 		/*
   2451 		 * If we send an ATIO to the firmware to increment
   2452 		 * its command resource count, and the firmware is
   2453 		 * recovering from a Bus Device Reset, it returns
   2454 		 * the ATIO with this status.
   2455 		 */
   2456 		PRINTF("%s: ATIO2 returned with BDR rcvd\n", isp->isp_name);
   2457 		break;
   2458 
   2459 	case AT_CDB:
   2460 		/*
   2461 		 * New CDB
   2462 		 */
   2463 		cdp->cd_hba = isp;
   2464 		cdp->cd_iid = aep->at_iid;
   2465 		cdp->cd_tgt = 0;
   2466 		cdp->cd_lun = aep->at_lun;
   2467 		MEMCPY(cdp->cd_cdb, aep->at_cdb, 16);
   2468 		cdp->cd_rxid = aep->at_rxid;
   2469 		cdp->cp_origdlen = aep->at_datalen;
   2470 		cdp->cp_totbytes = 0;
   2471 		PRINTF("%s: CDB 0x%x rx_id 0x%x itl %d/%d/%d dlen %d\n",
   2472 		    isp->isp_name, cdp->cd_cdb[0], cdp->cd_tagval, cdp->cd_iid,
   2473 		    cdp->cd_tgt, cdp->cd_lun, aep->at_datalen);
   2474 		(*isp->isp_tmd_newcmd)(isp, cdp);
   2475 		break;
   2476 
   2477 	default:
   2478 		PRINTF("%s: Unknown status (0x%x) in ATIO2\n",
   2479 		    isp->isp_name, status);
   2480 		cdp->cd_hba = isp;
   2481 		cdp->cd_iid = aep->at_iid;
   2482 		cdp->cd_tgt = aep->at_tgt;
   2483 		cdp->cd_lun = aep->at_lun;
   2484 		cdp->cp_rxid = aep->at_rxid;
   2485 		isp_tgtcmd_done(cdp);
   2486 		break;
   2487 	}
   2488 }
   2489 
   2490 static void
   2491 isp_handle_ctio(isp, cep)
   2492 	struct ispsoftc *isp;
   2493 	ct_entry_t *aep;
   2494 {
   2495 }
   2496 
   2497 static void
   2498 isp_handle_ctio2(isp, cep)
   2499 	struct ispsoftc *isp;
   2500 	at2_entry_t *aep;
   2501 {
   2502 }
   2503 #endif
   2504 
   2505 static void
   2506 isp_parse_status(isp, sp, xs)
   2507 	struct ispsoftc *isp;
   2508 	ispstatusreq_t *sp;
   2509 	ISP_SCSI_XFER_T *xs;
   2510 {
   2511 	switch (sp->req_completion_status) {
   2512 	case RQCS_COMPLETE:
   2513 		XS_SETERR(xs, HBA_NOERROR);
   2514 		return;
   2515 
   2516 	case RQCS_INCOMPLETE:
   2517 		if ((sp->req_state_flags & RQSF_GOT_TARGET) == 0) {
   2518 			IDPRINTF(3, ("%s: Selection Timeout for target %d\n",
   2519 			    isp->isp_name, XS_TGT(xs)));
   2520 			XS_SETERR(xs, HBA_SELTIMEOUT);
   2521 			return;
   2522 		}
   2523 		PRINTF("%s: command incomplete for target %d lun %d, state "
   2524 		    "0x%x\n", isp->isp_name, XS_TGT(xs), XS_LUN(xs),
   2525 		    sp->req_state_flags);
   2526 		break;
   2527 
   2528 	case RQCS_DMA_ERROR:
   2529 		PRINTF("%s: DMA error for command on target %d, lun %d\n",
   2530 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2531 		break;
   2532 
   2533 	case RQCS_TRANSPORT_ERROR:
   2534 		PRINTF("%s: transport error\n", isp->isp_name);
   2535 		isp_prtstst(sp);
   2536 		break;
   2537 
   2538 	case RQCS_RESET_OCCURRED:
   2539 		IDPRINTF(2, ("%s: bus reset destroyed command for target %d "
   2540 		    "lun %d\n", isp->isp_name, XS_TGT(xs), XS_LUN(xs)));
   2541 		isp->isp_sendmarker = 1;
   2542 		XS_SETERR(xs, HBA_BUSRESET);
   2543 		return;
   2544 
   2545 	case RQCS_ABORTED:
   2546 		PRINTF("%s: command aborted for target %d lun %d\n",
   2547 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2548 		isp->isp_sendmarker = 1;
   2549 		XS_SETERR(xs, HBA_ABORTED);
   2550 		return;
   2551 
   2552 	case RQCS_TIMEOUT:
   2553 		IDPRINTF(2, ("%s: command timed out for target %d lun %d\n",
   2554 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs)));
   2555 		XS_SETERR(xs, HBA_CMDTIMEOUT);
   2556 		return;
   2557 
   2558 	case RQCS_DATA_OVERRUN:
   2559 		if (isp->isp_type & ISP_HA_FC) {
   2560 			XS_RESID(xs) = sp->req_resid;
   2561 			break;
   2562 		}
   2563 		XS_SETERR(xs, HBA_DATAOVR);
   2564 		return;
   2565 
   2566 	case RQCS_COMMAND_OVERRUN:
   2567 		PRINTF("%s: command overrun for command on target %d, lun %d\n",
   2568 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2569 		break;
   2570 
   2571 	case RQCS_STATUS_OVERRUN:
   2572 		PRINTF("%s: status overrun for command on target %d, lun %d\n",
   2573 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2574 		break;
   2575 
   2576 	case RQCS_BAD_MESSAGE:
   2577 		PRINTF("%s: message not COMMAND COMPLETE after status on "
   2578 		    "target %d, lun %d\n", isp->isp_name, XS_TGT(xs),
   2579 		    XS_LUN(xs));
   2580 		break;
   2581 
   2582 	case RQCS_NO_MESSAGE_OUT:
   2583 		PRINTF("%s: No MESSAGE OUT phase after selection on "
   2584 		    "target %d, lun %d\n", isp->isp_name, XS_TGT(xs),
   2585 		    XS_LUN(xs));
   2586 		break;
   2587 
   2588 	case RQCS_EXT_ID_FAILED:
   2589 		PRINTF("%s: EXTENDED IDENTIFY failed on target %d, lun %d\n",
   2590 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2591 		break;
   2592 
   2593 	case RQCS_IDE_MSG_FAILED:
   2594 		PRINTF("%s: target %d lun %d rejected INITIATOR DETECTED "
   2595 		    "ERROR message\n", isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2596 		break;
   2597 
   2598 	case RQCS_ABORT_MSG_FAILED:
   2599 		PRINTF("%s: target %d lun %d rejected ABORT message\n",
   2600 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2601 		break;
   2602 
   2603 	case RQCS_REJECT_MSG_FAILED:
   2604 		PRINTF("%s: target %d lun %d rejected MESSAGE REJECT message\n",
   2605 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2606 		break;
   2607 
   2608 	case RQCS_NOP_MSG_FAILED:
   2609 		PRINTF("%s: target %d lun %d rejected NOP message\n",
   2610 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2611 		break;
   2612 
   2613 	case RQCS_PARITY_ERROR_MSG_FAILED:
   2614 		PRINTF("%s: target %d lun %d rejected MESSAGE PARITY ERROR "
   2615 		    "message\n", isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2616 		break;
   2617 
   2618 	case RQCS_DEVICE_RESET_MSG_FAILED:
   2619 		PRINTF("%s: target %d lun %d rejected BUS DEVICE RESET "
   2620 		    "message\n", isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2621 		break;
   2622 
   2623 	case RQCS_ID_MSG_FAILED:
   2624 		PRINTF("%s: target %d lun %d rejected IDENTIFY "
   2625 		    "message\n", isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2626 		break;
   2627 
   2628 	case RQCS_UNEXP_BUS_FREE:
   2629 		PRINTF("%s: target %d lun %d had an unexpected bus free\n",
   2630 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2631 		break;
   2632 
   2633 	case RQCS_DATA_UNDERRUN:
   2634 		if (isp->isp_type & ISP_HA_FC) {
   2635 			XS_RESID(xs) = sp->req_resid;
   2636 			/* an UNDERRUN is not a botch ??? */
   2637 		}
   2638 		XS_SETERR(xs, HBA_NOERROR);
   2639 		return;
   2640 
   2641 	case RQCS_XACT_ERR1:
   2642 		PRINTF("%s: HBA attempted queued transaction with disconnect "
   2643 		    "not set for target %d lun %d\n", isp->isp_name, XS_TGT(xs),
   2644 		    XS_LUN(xs));
   2645 		break;
   2646 
   2647 	case RQCS_XACT_ERR2:
   2648 		PRINTF("%s: HBA attempted queued transaction to target "
   2649 		    "routine %d on target %d\n", isp->isp_name, XS_LUN(xs),
   2650 		    XS_TGT(xs));
   2651 		break;
   2652 
   2653 	case RQCS_XACT_ERR3:
   2654 		PRINTF("%s: HBA attempted queued transaction for target %d lun "
   2655 		    "%d when queueing disabled\n", isp->isp_name, XS_TGT(xs),
   2656 		    XS_LUN(xs));
   2657 		break;
   2658 
   2659 	case RQCS_BAD_ENTRY:
   2660 		PRINTF("%s: invalid IOCB entry type detected\n", isp->isp_name);
   2661 		break;
   2662 
   2663 	case RQCS_QUEUE_FULL:
   2664 		PRINTF("%s: internal queues full for target %d lun %d "
   2665 		    "status 0x%x\n", isp->isp_name, XS_TGT(xs), XS_LUN(xs),
   2666 		    XS_STS(xs));
   2667 		/*
   2668 		 * If QFULL or some other status byte is set, then this
   2669 		 * isn't an error, per se.
   2670 		 */
   2671 		if (XS_STS(xs) != 0) {
   2672 			XS_SETERR(xs, HBA_NOERROR);
   2673 			return;
   2674 		}
   2675 		break;
   2676 
   2677 	case RQCS_PHASE_SKIPPED:
   2678 		PRINTF("%s: SCSI phase skipped (e.g., COMMAND COMPLETE w/o "
   2679 		    "STATUS phase) for target %d lun %d\n", isp->isp_name,
   2680 		    XS_TGT(xs), XS_LUN(xs));
   2681 		break;
   2682 
   2683 	case RQCS_ARQS_FAILED:
   2684 		PRINTF("%s: Auto Request Sense failed for target %d lun %d\n",
   2685 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2686 		XS_SETERR(xs, HBA_ARQFAIL);
   2687 		return;
   2688 
   2689 	case RQCS_WIDE_FAILED:
   2690 		PRINTF("%s: Wide Negotiation failed for target %d lun %d\n",
   2691 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2692 		if (isp->isp_type & ISP_HA_SCSI) {
   2693 			sdparam *sdp = isp->isp_param;
   2694 			isp->isp_update = 1;
   2695 			sdp->isp_devparam[XS_TGT(xs)].dev_flags &= ~DPARM_WIDE;
   2696 			sdp->isp_devparam[XS_TGT(xs)].dev_update = 1;
   2697 		}
   2698 		XS_SETERR(xs, HBA_NOERROR);
   2699 		return;
   2700 
   2701 	case RQCS_SYNCXFER_FAILED:
   2702 		PRINTF("%s: SDTR Message failed for target %d lun %d\n",
   2703 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2704 		if (isp->isp_type & ISP_HA_SCSI) {
   2705 			sdparam *sdp = isp->isp_param;
   2706 			isp->isp_update = 1;
   2707 			sdp->isp_devparam[XS_TGT(xs)].dev_flags &= ~DPARM_SYNC;
   2708 			sdp->isp_devparam[XS_TGT(xs)].dev_update = 1;
   2709 		}
   2710 		break;
   2711 
   2712 	case RQCS_LVD_BUSERR:
   2713 		PRINTF("%s: Bad LVD Bus condition while talking to target %d "
   2714 		    "lun %d\n", isp->isp_name, XS_TGT(xs), XS_LUN(xs));
   2715 		break;
   2716 
   2717 	case RQCS_PORT_UNAVAILABLE:
   2718 		/*
   2719 		 * No such port on the loop. Moral equivalent of SELTIMEO
   2720 		 */
   2721 		IDPRINTF(3, ("%s: Port Unavailable for target %d\n",
   2722 		    isp->isp_name, XS_TGT(xs)));
   2723 		XS_SETERR(xs, HBA_SELTIMEOUT);
   2724 		return;
   2725 
   2726 	case RQCS_PORT_LOGGED_OUT:
   2727 		/*
   2728 		 * It was there (maybe)- treat as a selection timeout.
   2729 		 */
   2730 		PRINTF("%s: port logout for target %d\n",
   2731 			isp->isp_name, XS_TGT(xs));
   2732 		XS_SETERR(xs, HBA_SELTIMEOUT);
   2733 		return;
   2734 
   2735 	case RQCS_PORT_CHANGED:
   2736 		PRINTF("%s: port changed for target %d\n",
   2737 			isp->isp_name, XS_TGT(xs));
   2738 		break;
   2739 
   2740 	case RQCS_PORT_BUSY:
   2741 		PRINTF("%s: port busy for target %d\n",
   2742 			isp->isp_name, XS_TGT(xs));
   2743 		XS_SETERR(xs, HBA_TGTBSY);
   2744 		return;
   2745 
   2746 	default:
   2747 		PRINTF("%s: comp status %x\n", isp->isp_name,
   2748 		    sp->req_completion_status);
   2749 		break;
   2750 	}
   2751 	XS_SETERR(xs, HBA_BOTCH);
   2752 }
   2753 
   2754 static void
   2755 isp_fastpost_complete(isp, fph)
   2756 	struct ispsoftc *isp;
   2757 	int fph;
   2758 {
   2759 	ISP_SCSI_XFER_T *xs;
   2760 
   2761 	if (fph < 1)
   2762 		return;
   2763 	xs = (ISP_SCSI_XFER_T *) isp->isp_xflist[fph - 1];
   2764 	isp->isp_xflist[fph - 1] = NULL;
   2765 	if (xs == NULL) {
   2766 		PRINTF("%s: fast posting handle 0x%x not found\n",
   2767 		    isp->isp_name, fph - 1);
   2768 		return;
   2769 	}
   2770 	/*
   2771 	 * Since we don't have a result queue entry item,
   2772 	 * we must believe that SCSI status is zero and
   2773 	 * that all data transferred.
   2774 	 */
   2775 	XS_RESID(xs) = 0;
   2776 	XS_STS(xs) = 0;
   2777 	if (XS_XFRLEN(xs)) {
   2778 		ISP_DMAFREE(isp, xs, fph - 1);
   2779 	}
   2780 	XS_CMD_DONE(xs);
   2781 }
   2782 
   2783 #define	HINIB(x)			((x) >> 0x4)
   2784 #define	LONIB(x)			((x)  & 0xf)
   2785 #define	MAKNIB(a, b)			(((a) << 4) | (b))
   2786 static u_int8_t mbpcnt[] = {
   2787 	MAKNIB(1, 1),	/* 0x00: MBOX_NO_OP */
   2788 	MAKNIB(5, 5),	/* 0x01: MBOX_LOAD_RAM */
   2789 	MAKNIB(2, 0),	/* 0x02: MBOX_EXEC_FIRMWARE */
   2790 	MAKNIB(5, 5),	/* 0x03: MBOX_DUMP_RAM */
   2791 	MAKNIB(3, 3),	/* 0x04: MBOX_WRITE_RAM_WORD */
   2792 	MAKNIB(2, 3),	/* 0x05: MBOX_READ_RAM_WORD */
   2793 	MAKNIB(6, 6),	/* 0x06: MBOX_MAILBOX_REG_TEST */
   2794 	MAKNIB(2, 3),	/* 0x07: MBOX_VERIFY_CHECKSUM	*/
   2795 	MAKNIB(1, 3),	/* 0x08: MBOX_ABOUT_FIRMWARE */
   2796 	MAKNIB(0, 0),	/* 0x09: */
   2797 	MAKNIB(0, 0),	/* 0x0a: */
   2798 	MAKNIB(0, 0),	/* 0x0b: */
   2799 	MAKNIB(0, 0),	/* 0x0c: */
   2800 	MAKNIB(0, 0),	/* 0x0d: */
   2801 	MAKNIB(1, 2),	/* 0x0e: MBOX_CHECK_FIRMWARE */
   2802 	MAKNIB(0, 0),	/* 0x0f: */
   2803 	MAKNIB(5, 5),	/* 0x10: MBOX_INIT_REQ_QUEUE */
   2804 	MAKNIB(6, 6),	/* 0x11: MBOX_INIT_RES_QUEUE */
   2805 	MAKNIB(4, 4),	/* 0x12: MBOX_EXECUTE_IOCB */
   2806 	MAKNIB(2, 2),	/* 0x13: MBOX_WAKE_UP	*/
   2807 	MAKNIB(1, 6),	/* 0x14: MBOX_STOP_FIRMWARE */
   2808 	MAKNIB(4, 4),	/* 0x15: MBOX_ABORT */
   2809 	MAKNIB(2, 2),	/* 0x16: MBOX_ABORT_DEVICE */
   2810 	MAKNIB(3, 3),	/* 0x17: MBOX_ABORT_TARGET */
   2811 	MAKNIB(3, 1),	/* 0x18: MBOX_BUS_RESET */
   2812 	MAKNIB(2, 3),	/* 0x19: MBOX_STOP_QUEUE */
   2813 	MAKNIB(2, 3),	/* 0x1a: MBOX_START_QUEUE */
   2814 	MAKNIB(2, 3),	/* 0x1b: MBOX_SINGLE_STEP_QUEUE */
   2815 	MAKNIB(2, 3),	/* 0x1c: MBOX_ABORT_QUEUE */
   2816 	MAKNIB(2, 4),	/* 0x1d: MBOX_GET_DEV_QUEUE_STATUS */
   2817 	MAKNIB(0, 0),	/* 0x1e: */
   2818 	MAKNIB(1, 3),	/* 0x1f: MBOX_GET_FIRMWARE_STATUS */
   2819 	MAKNIB(1, 3),	/* 0x20: MBOX_GET_INIT_SCSI_ID, MBOX_GET_LOOP_ID */
   2820 	MAKNIB(1, 2),	/* 0x21: MBOX_GET_SELECT_TIMEOUT */
   2821 	MAKNIB(1, 3),	/* 0x22: MBOX_GET_RETRY_COUNT	*/
   2822 	MAKNIB(1, 2),	/* 0x23: MBOX_GET_TAG_AGE_LIMIT */
   2823 	MAKNIB(1, 2),	/* 0x24: MBOX_GET_CLOCK_RATE */
   2824 	MAKNIB(1, 2),	/* 0x25: MBOX_GET_ACT_NEG_STATE */
   2825 	MAKNIB(1, 2),	/* 0x26: MBOX_GET_ASYNC_DATA_SETUP_TIME */
   2826 	MAKNIB(1, 3),	/* 0x27: MBOX_GET_PCI_PARAMS */
   2827 	MAKNIB(2, 4),	/* 0x28: MBOX_GET_TARGET_PARAMS */
   2828 	MAKNIB(2, 4),	/* 0x29: MBOX_GET_DEV_QUEUE_PARAMS */
   2829 	MAKNIB(0, 0),	/* 0x2a: */
   2830 	MAKNIB(0, 0),	/* 0x2b: */
   2831 	MAKNIB(0, 0),	/* 0x2c: */
   2832 	MAKNIB(0, 0),	/* 0x2d: */
   2833 	MAKNIB(0, 0),	/* 0x2e: */
   2834 	MAKNIB(0, 0),	/* 0x2f: */
   2835 	MAKNIB(2, 2),	/* 0x30: MBOX_SET_INIT_SCSI_ID */
   2836 	MAKNIB(2, 2),	/* 0x31: MBOX_SET_SELECT_TIMEOUT */
   2837 	MAKNIB(3, 3),	/* 0x32: MBOX_SET_RETRY_COUNT	*/
   2838 	MAKNIB(2, 2),	/* 0x33: MBOX_SET_TAG_AGE_LIMIT */
   2839 	MAKNIB(2, 2),	/* 0x34: MBOX_SET_CLOCK_RATE */
   2840 	MAKNIB(2, 2),	/* 0x35: MBOX_SET_ACTIVE_NEG_STATE */
   2841 	MAKNIB(2, 2),	/* 0x36: MBOX_SET_ASYNC_DATA_SETUP_TIME */
   2842 	MAKNIB(3, 3),	/* 0x37: MBOX_SET_PCI_CONTROL_PARAMS */
   2843 	MAKNIB(4, 4),	/* 0x38: MBOX_SET_TARGET_PARAMS */
   2844 	MAKNIB(4, 4),	/* 0x39: MBOX_SET_DEV_QUEUE_PARAMS */
   2845 	MAKNIB(0, 0),	/* 0x3a: */
   2846 	MAKNIB(0, 0),	/* 0x3b: */
   2847 	MAKNIB(0, 0),	/* 0x3c: */
   2848 	MAKNIB(0, 0),	/* 0x3d: */
   2849 	MAKNIB(0, 0),	/* 0x3e: */
   2850 	MAKNIB(0, 0),	/* 0x3f: */
   2851 	MAKNIB(1, 2),	/* 0x40: MBOX_RETURN_BIOS_BLOCK_ADDR */
   2852 	MAKNIB(6, 1),	/* 0x41: MBOX_WRITE_FOUR_RAM_WORDS */
   2853 	MAKNIB(2, 3),	/* 0x42: MBOX_EXEC_BIOS_IOCB */
   2854 	MAKNIB(0, 0),	/* 0x43: */
   2855 	MAKNIB(0, 0),	/* 0x44: */
   2856 	MAKNIB(0, 0),	/* 0x45: */
   2857 	MAKNIB(0, 0),	/* 0x46: */
   2858 	MAKNIB(0, 0),	/* 0x47: */
   2859 	MAKNIB(0, 0),	/* 0x48: */
   2860 	MAKNIB(0, 0),	/* 0x49: */
   2861 	MAKNIB(2, 1),	/* 0x4a: MBOX_SET_FIRMWARE_FEATURES */
   2862 	MAKNIB(1, 2),	/* 0x4b: MBOX_GET_FIRMWARE_FEATURES */
   2863 	MAKNIB(0, 0),	/* 0x4c: */
   2864 	MAKNIB(0, 0),	/* 0x4d: */
   2865 	MAKNIB(0, 0),	/* 0x4e: */
   2866 	MAKNIB(0, 0),	/* 0x4f: */
   2867 	MAKNIB(0, 0),	/* 0x50: */
   2868 	MAKNIB(0, 0),	/* 0x51: */
   2869 	MAKNIB(0, 0),	/* 0x52: */
   2870 	MAKNIB(0, 0),	/* 0x53: */
   2871 	MAKNIB(8, 0),	/* 0x54: MBOX_EXEC_COMMAND_IOCB_A64 */
   2872 	MAKNIB(0, 0),	/* 0x55: */
   2873 	MAKNIB(0, 0),	/* 0x56: */
   2874 	MAKNIB(0, 0),	/* 0x57: */
   2875 	MAKNIB(0, 0),	/* 0x58: */
   2876 	MAKNIB(0, 0),	/* 0x59: */
   2877 	MAKNIB(0, 0),	/* 0x5a: */
   2878 	MAKNIB(0, 0),	/* 0x5b: */
   2879 	MAKNIB(0, 0),	/* 0x5c: */
   2880 	MAKNIB(0, 0),	/* 0x5d: */
   2881 	MAKNIB(0, 0),	/* 0x5e: */
   2882 	MAKNIB(0, 0),	/* 0x5f: */
   2883 	MAKNIB(8, 6),	/* 0x60: MBOX_INIT_FIRMWARE */
   2884 	MAKNIB(0, 0),	/* 0x60: MBOX_GET_INIT_CONTROL_BLOCK  (FORMAT?) */
   2885 	MAKNIB(2, 1),	/* 0x62: MBOX_INIT_LIP */
   2886 	MAKNIB(8, 1),	/* 0x63: MBOX_GET_FC_AL_POSITION_MAP */
   2887 	MAKNIB(8, 1),	/* 0x64: MBOX_GET_PORT_DB */
   2888 	MAKNIB(3, 1),	/* 0x65: MBOX_CLEAR_ACA */
   2889 	MAKNIB(3, 1),	/* 0x66: MBOX_TARGET_RESET */
   2890 	MAKNIB(3, 1),	/* 0x67: MBOX_CLEAR_TASK_SET */
   2891 	MAKNIB(3, 1),	/* 0x68: MBOX_ABORT_TASK_SET */
   2892 	MAKNIB(1, 2),	/* 0x69: MBOX_GET_FW_STATE */
   2893 	MAKNIB(2, 8),	/* 0x6a: MBOX_GET_PORT_NAME */
   2894 	MAKNIB(8, 1),	/* 0x6b: MBOX_GET_LINK_STATUS */
   2895 	MAKNIB(4, 4),	/* 0x6c: MBOX_INIT_LIP_RESET */
   2896 	MAKNIB(0, 0),	/* 0x6d: */
   2897 	MAKNIB(0, 0),	/* 0x6e: */
   2898 	MAKNIB(0, 0),	/* 0x6f: */
   2899 	MAKNIB(0, 0),	/* 0x70: */
   2900 	MAKNIB(0, 0),	/* 0x71: */
   2901 	MAKNIB(4, 1)	/* 0x72: MBOX_INIT_LIP_LOGIN */
   2902 };
   2903 #define	NMBCOM	(sizeof (mbpcnt) / sizeof (mbpcnt[0]))
   2904 
   2905 static void
   2906 isp_mboxcmd(isp, mbp)
   2907 	struct ispsoftc *isp;
   2908 	mbreg_t *mbp;
   2909 {
   2910 	int outparam, inparam;
   2911 	int loops, dld = 0;
   2912 	u_int8_t opcode;
   2913 
   2914 	if (mbp->param[0] == ISP2100_SET_PCI_PARAM) {
   2915 		opcode = mbp->param[0] = MBOX_SET_PCI_PARAMETERS;
   2916 		inparam = 4;
   2917 		outparam = 4;
   2918 		goto command_known;
   2919 	} else if (mbp->param[0] > NMBCOM) {
   2920 		PRINTF("%s: bad command %x\n", isp->isp_name, mbp->param[0]);
   2921 		return;
   2922 	}
   2923 
   2924 	opcode = mbp->param[0];
   2925 	inparam = HINIB(mbpcnt[mbp->param[0]]);
   2926 	outparam =  LONIB(mbpcnt[mbp->param[0]]);
   2927 
   2928 	if (inparam == 0 && outparam == 0) {
   2929 		PRINTF("%s: no parameters for %x\n", isp->isp_name,
   2930 			mbp->param[0]);
   2931 		return;
   2932 	}
   2933 
   2934 
   2935 	/*
   2936 	 * Check for variants
   2937 	 */
   2938 #ifdef	ISP2100_SCCLUN
   2939 	if (isp->isp_type & ISP_HA_FC) {
   2940 		switch (mbp->param[0]) {
   2941 		case MBOX_ABORT:
   2942 			inparam = 7;
   2943 			break;
   2944 		case MBOX_ABORT_DEVICE:
   2945 		case MBOX_START_QUEUE:
   2946 		case MBOX_STOP_QUEUE:
   2947 		case MBOX_SINGLE_STEP_QUEUE:
   2948 		case MBOX_ABORT_QUEUE:
   2949 		case MBOX_GET_DEV_QUEUE_STATUS:
   2950 			inparam = 3;
   2951 			break;
   2952 		default:
   2953 			break;
   2954 		}
   2955 	}
   2956 #endif
   2957 
   2958 command_known:
   2959 
   2960 	/*
   2961 	 * Set semaphore on mailbox registers to win any races to acquire them.
   2962 	 */
   2963 	ISP_WRITE(isp, BIU_SEMA, 1);
   2964 
   2965 	/*
   2966 	 * Make sure we can send some words. Check to see id there's
   2967 	 * an async mbox event pending.
   2968 	 */
   2969 
   2970 	loops = MBOX_DELAY_COUNT;
   2971 	while ((ISP_READ(isp, HCCR) & HCCR_HOST_INT) != 0) {
   2972 		SYS_DELAY(100);
   2973 		if (ISP_READ(isp, BIU_SEMA) & 1) {
   2974 			int fph;
   2975 			u_int16_t mbox = ISP_READ(isp, OUTMAILBOX0);
   2976 			/*
   2977 			 * We have a pending MBOX async event.
   2978 			 */
   2979 			if (mbox & 0x8000) {
   2980 				fph = isp_parse_async(isp, (int) mbox);
   2981 				ISP_WRITE(isp, BIU_SEMA, 0);
   2982 				ISP_WRITE(isp, HCCR, HCCR_CMD_CLEAR_RISC_INT);
   2983 				if (fph < 0) {
   2984 					return;
   2985 				} else if (fph > 0) {
   2986 					isp_fastpost_complete(isp, fph);
   2987 				}
   2988 				SYS_DELAY(100);
   2989 				goto command_known;
   2990 			}
   2991 			/*
   2992 			 * We have a pending MBOX completion? Might be
   2993 			 * from a previous command. We can't (sometimes)
   2994 			 * just clear HOST INTERRUPT, so we'll just silently
   2995 			 * eat this here.
   2996 			 */
   2997 			if (mbox == MBOX_COMMAND_COMPLETE) {
   2998 				ISP_WRITE(isp, BIU_SEMA, 0);
   2999 				ISP_WRITE(isp, HCCR, HCCR_CMD_CLEAR_RISC_INT);
   3000 				SYS_DELAY(100);
   3001 				goto command_known;
   3002 			}
   3003 		}
   3004 		if (--loops < 0) {
   3005 			if (dld++ > 10) {
   3006 				PRINTF("%s: isp_mboxcmd could not get command "
   3007 				    "started\n", isp->isp_name);
   3008 				return;
   3009 			}
   3010 			ISP_WRITE(isp, BIU_SEMA, 0);
   3011 			ISP_WRITE(isp, HCCR, HCCR_CMD_CLEAR_RISC_INT);
   3012 			goto command_known;
   3013 		}
   3014 	}
   3015 
   3016 	/*
   3017 	 * If we're a 1080 or a 1240, make sure that for a couple of commands
   3018 	 * the port parameter is set. This is sort of a temporary solution
   3019 	 * to do it here rather than every place a mailbox command is formed.
   3020 	 */
   3021 	if (IS_1080(isp) || IS_12X0(isp)) {
   3022 		switch (mbp->param[0]) {
   3023 		case MBOX_BUS_RESET:
   3024 			mbp->param[2] = isp->isp_port;
   3025 			break;
   3026 		default:
   3027 			break;
   3028 		}
   3029 	}
   3030 
   3031 	/*
   3032 	 * Write input parameters.
   3033 	 */
   3034 	switch (inparam) {
   3035 	case 8: ISP_WRITE(isp, INMAILBOX7, mbp->param[7]); mbp->param[7] = 0;
   3036 	case 7: ISP_WRITE(isp, INMAILBOX6, mbp->param[6]); mbp->param[6] = 0;
   3037 	case 6:
   3038 		/*
   3039 		 * The Qlogic 2100 cannot have registers 4 and 5 written to
   3040 		 * after initialization or BAD THINGS HAPPEN (tm).
   3041 		 */
   3042 		if (IS_SCSI(isp) || mbp->param[0] == MBOX_INIT_FIRMWARE)
   3043 			ISP_WRITE(isp, INMAILBOX5, mbp->param[5]);
   3044 		mbp->param[5] = 0;
   3045 	case 5:
   3046 		if (IS_SCSI(isp) || mbp->param[0] == MBOX_INIT_FIRMWARE)
   3047 			ISP_WRITE(isp, INMAILBOX4, mbp->param[4]);
   3048 		mbp->param[4] = 0;
   3049 	case 4: ISP_WRITE(isp, INMAILBOX3, mbp->param[3]); mbp->param[3] = 0;
   3050 	case 3: ISP_WRITE(isp, INMAILBOX2, mbp->param[2]); mbp->param[2] = 0;
   3051 	case 2: ISP_WRITE(isp, INMAILBOX1, mbp->param[1]); mbp->param[1] = 0;
   3052 	case 1: ISP_WRITE(isp, INMAILBOX0, mbp->param[0]); mbp->param[0] = 0;
   3053 	}
   3054 
   3055 	/*
   3056 	 * Clear RISC int condition.
   3057 	 */
   3058 	ISP_WRITE(isp, HCCR, HCCR_CMD_CLEAR_RISC_INT);
   3059 
   3060 	/*
   3061 	 * Clear semaphore on mailbox registers so that the Qlogic
   3062 	 * may update outgoing registers.
   3063 	 */
   3064 	ISP_WRITE(isp, BIU_SEMA, 0);
   3065 
   3066 	ENABLE_INTS(isp);
   3067 	/*
   3068 	 * Set Host Interrupt condition so that RISC will pick up mailbox regs.
   3069 	 */
   3070 	ISP_WRITE(isp, HCCR, HCCR_CMD_SET_HOST_INT);
   3071 
   3072 	/*
   3073 	 * Wait until HOST INT has gone away (meaning that the Qlogic
   3074 	 * has picked up the mailbox command. Wait a long time.
   3075 	 */
   3076 	loops = MBOX_DELAY_COUNT * 5;
   3077 	while ((ISP_READ(isp, HCCR) & HCCR_CMD_CLEAR_RISC_INT) != 0) {
   3078 		SYS_DELAY(100);
   3079 		if (--loops < 0) {
   3080 			PRINTF("%s: isp_mboxcmd timeout #2\n", isp->isp_name);
   3081 			return;
   3082 		}
   3083 	}
   3084 
   3085 	/*
   3086 	 * While the Semaphore registers isn't set, wait for the Qlogic
   3087 	 * to process the mailbox command. Again- wait a long time.
   3088 	 */
   3089 	loops = MBOX_DELAY_COUNT * 5;
   3090 	while ((ISP_READ(isp, BIU_SEMA) & 1) == 0) {
   3091 		SYS_DELAY(100);
   3092 		/*
   3093 		 * Wierd- I've seen the case where the semaphore register
   3094 		 * isn't getting set- sort of a violation of the protocol..
   3095 		 */
   3096 		if (ISP_READ(isp, OUTMAILBOX0) & 0x4000)
   3097 			break;
   3098 		if (--loops < 0) {
   3099 			PRINTF("%s: isp_mboxcmd timeout #3\n", isp->isp_name);
   3100 			return;
   3101 		}
   3102 	}
   3103 
   3104 	/*
   3105 	 * Make sure that the MBOX_BUSY has gone away
   3106 	 */
   3107 	loops = MBOX_DELAY_COUNT;
   3108 	for (;;) {
   3109 		u_int16_t mbox = ISP_READ(isp, OUTMAILBOX0);
   3110 		if (mbox == MBOX_BUSY) {
   3111 			if (--loops < 0) {
   3112 				PRINTF("%s: isp_mboxcmd timeout #4\n",
   3113 				    isp->isp_name);
   3114 				return;
   3115 			}
   3116 			SYS_DELAY(100);
   3117 			continue;
   3118 		}
   3119 		/*
   3120 		 * We have a pending MBOX async event.
   3121 		 */
   3122 		if (mbox & 0x8000) {
   3123 			int fph = isp_parse_async(isp, (int) mbox);
   3124 			ISP_WRITE(isp, BIU_SEMA, 0);
   3125 			ISP_WRITE(isp, HCCR, HCCR_CMD_CLEAR_RISC_INT);
   3126 			if (fph < 0) {
   3127 				return;
   3128 			} else if (fph > 0) {
   3129 				isp_fastpost_complete(isp, fph);
   3130 			}
   3131 			SYS_DELAY(100);
   3132 			continue;
   3133 		}
   3134 		break;
   3135 	}
   3136 
   3137 	/*
   3138 	 * Pick up output parameters.
   3139 	 */
   3140 	switch (outparam) {
   3141 	case 8: mbp->param[7] = ISP_READ(isp, OUTMAILBOX7);
   3142 	case 7: mbp->param[6] = ISP_READ(isp, OUTMAILBOX6);
   3143 	case 6: mbp->param[5] = ISP_READ(isp, OUTMAILBOX5);
   3144 	case 5: mbp->param[4] = ISP_READ(isp, OUTMAILBOX4);
   3145 	case 4: mbp->param[3] = ISP_READ(isp, OUTMAILBOX3);
   3146 	case 3: mbp->param[2] = ISP_READ(isp, OUTMAILBOX2);
   3147 	case 2: mbp->param[1] = ISP_READ(isp, OUTMAILBOX1);
   3148 	case 1: mbp->param[0] = ISP_READ(isp, OUTMAILBOX0);
   3149 	}
   3150 
   3151 	/*
   3152 	 * Clear RISC int.
   3153 	 */
   3154 	ISP_WRITE(isp, HCCR, HCCR_CMD_CLEAR_RISC_INT);
   3155 
   3156 	/*
   3157 	 * Release semaphore on mailbox registers
   3158 	 */
   3159 	ISP_WRITE(isp, BIU_SEMA, 0);
   3160 
   3161 	/*
   3162 	 * Just to be chatty here...
   3163 	 */
   3164 	switch (mbp->param[0]) {
   3165 	case MBOX_COMMAND_COMPLETE:
   3166 		break;
   3167 	case MBOX_INVALID_COMMAND:
   3168 		IDPRINTF(2, ("%s: mbox cmd %x failed with INVALID_COMMAND\n",
   3169 		    isp->isp_name, opcode));
   3170 		break;
   3171 	case MBOX_HOST_INTERFACE_ERROR:
   3172 		PRINTF("%s: mbox cmd %x failed with HOST_INTERFACE_ERROR\n",
   3173 		    isp->isp_name, opcode);
   3174 		break;
   3175 	case MBOX_TEST_FAILED:
   3176 		PRINTF("%s: mbox cmd %x failed with TEST_FAILED\n",
   3177 		    isp->isp_name, opcode);
   3178 		break;
   3179 	case MBOX_COMMAND_ERROR:
   3180 		PRINTF("%s: mbox cmd %x failed with COMMAND_ERROR\n",
   3181 		    isp->isp_name, opcode);
   3182 		break;
   3183 	case MBOX_COMMAND_PARAM_ERROR:
   3184 		switch (opcode) {
   3185 		case MBOX_GET_PORT_DB:
   3186 		case MBOX_GET_PORT_NAME:
   3187 		case MBOX_GET_DEV_QUEUE_PARAMS:
   3188 			break;
   3189 		default:
   3190 			PRINTF("%s: mbox cmd %x failed with "
   3191 			    "COMMAND_PARAM_ERROR\n", isp->isp_name, opcode);
   3192 		}
   3193 		break;
   3194 
   3195 	/*
   3196 	 * Be silent about these...
   3197 	 */
   3198 
   3199 	case ASYNC_LIP_OCCURRED:
   3200 	case ASYNC_LOOP_UP:
   3201 	case ASYNC_LOOP_DOWN:
   3202 	case ASYNC_LOOP_RESET:
   3203 	case ASYNC_CHANGE_NOTIFY:
   3204 		break;
   3205 	case ASYNC_PDB_CHANGED:
   3206 		isp_mark_getpdb_all(isp);
   3207 		break;
   3208 
   3209 	default:
   3210 		/*
   3211 		 * The expected return of EXEC_FIRMWARE is zero.
   3212 		 */
   3213 		if ((opcode == MBOX_EXEC_FIRMWARE && mbp->param[0] != 0) ||
   3214 		    (opcode != MBOX_EXEC_FIRMWARE)) {
   3215 			PRINTF("%s: mbox cmd %x failed with error %x\n",
   3216 				isp->isp_name, opcode, mbp->param[0]);
   3217 		}
   3218 		break;
   3219 	}
   3220 }
   3221 
   3222 void
   3223 isp_lostcmd(isp, xs)
   3224 	struct ispsoftc *isp;
   3225 	ISP_SCSI_XFER_T *xs;
   3226 {
   3227 	mbreg_t mbs;
   3228 
   3229 	mbs.param[0] = MBOX_GET_FIRMWARE_STATUS;
   3230 	isp_mboxcmd(isp, &mbs);
   3231 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
   3232 		isp_dumpregs(isp, "couldn't GET FIRMWARE STATUS");
   3233 		return;
   3234 	}
   3235 	if (mbs.param[1]) {
   3236 		PRINTF("%s: %d commands on completion queue\n",
   3237 		    isp->isp_name, mbs.param[1]);
   3238 	}
   3239 	if (XS_NULL(xs))
   3240 		return;
   3241 
   3242 	mbs.param[0] = MBOX_GET_DEV_QUEUE_STATUS;
   3243 	mbs.param[1] = (XS_TGT(xs) << 8) | XS_LUN(xs);
   3244 	isp_mboxcmd(isp, &mbs);
   3245 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
   3246 		isp_dumpregs(isp, "couldn't GET DEVICE QUEUE STATUS");
   3247 		return;
   3248 	}
   3249 	PRINTF("%s: lost command for target %d lun %d, %d active of %d, "
   3250 		"Queue State: %x\n", isp->isp_name, XS_TGT(xs),
   3251 		XS_LUN(xs), mbs.param[2], mbs.param[3], mbs.param[1]);
   3252 
   3253 	isp_dumpregs(isp, "lost command");
   3254 	/*
   3255 	 * XXX: Need to try and do something to recover.
   3256 	 */
   3257 }
   3258 
   3259 static void
   3260 isp_dumpregs(isp, msg)
   3261 	struct ispsoftc *isp;
   3262 	const char *msg;
   3263 {
   3264 	PRINTF("%s: %s\n", isp->isp_name, msg);
   3265 	if (isp->isp_type & ISP_HA_SCSI)
   3266 		PRINTF("    biu_conf1=%x", ISP_READ(isp, BIU_CONF1));
   3267 	else
   3268 		PRINTF("    biu_csr=%x", ISP_READ(isp, BIU2100_CSR));
   3269 	PRINTF(" biu_icr=%x biu_isr=%x biu_sema=%x ", ISP_READ(isp, BIU_ICR),
   3270 	    ISP_READ(isp, BIU_ISR), ISP_READ(isp, BIU_SEMA));
   3271 	PRINTF("risc_hccr=%x\n", ISP_READ(isp, HCCR));
   3272 
   3273 
   3274 	if (isp->isp_type & ISP_HA_SCSI) {
   3275 		ISP_WRITE(isp, HCCR, HCCR_CMD_PAUSE);
   3276 		PRINTF("    cdma_conf=%x cdma_sts=%x cdma_fifostat=%x\n",
   3277 			ISP_READ(isp, CDMA_CONF), ISP_READ(isp, CDMA_STATUS),
   3278 			ISP_READ(isp, CDMA_FIFO_STS));
   3279 		PRINTF("    ddma_conf=%x ddma_sts=%x ddma_fifostat=%x\n",
   3280 			ISP_READ(isp, DDMA_CONF), ISP_READ(isp, DDMA_STATUS),
   3281 			ISP_READ(isp, DDMA_FIFO_STS));
   3282 		PRINTF("    sxp_int=%x sxp_gross=%x sxp(scsi_ctrl)=%x\n",
   3283 			ISP_READ(isp, SXP_INTERRUPT),
   3284 			ISP_READ(isp, SXP_GROSS_ERR),
   3285 			ISP_READ(isp, SXP_PINS_CONTROL));
   3286 		ISP_WRITE(isp, HCCR, HCCR_CMD_RELEASE);
   3287 	}
   3288 	PRINTF("    mbox regs: %x %x %x %x %x\n",
   3289 	    ISP_READ(isp, OUTMAILBOX0), ISP_READ(isp, OUTMAILBOX1),
   3290 	    ISP_READ(isp, OUTMAILBOX2), ISP_READ(isp, OUTMAILBOX3),
   3291 	    ISP_READ(isp, OUTMAILBOX4));
   3292 	ISP_DUMPREGS(isp);
   3293 }
   3294 
   3295 static void
   3296 isp_dumpxflist(isp)
   3297 	struct ispsoftc *isp;
   3298 {
   3299 	volatile ISP_SCSI_XFER_T *xs;
   3300 	int i, hdp;
   3301 
   3302 	for (hdp = i = 0; i < RQUEST_QUEUE_LEN; i++) {
   3303 		xs = isp->isp_xflist[i];
   3304 		if (xs == NULL) {
   3305 			continue;
   3306 		}
   3307 		if (hdp == 0) {
   3308 			PRINTF("%s: active requests\n", isp->isp_name);
   3309 			hdp++;
   3310 		}
   3311 		PRINTF(" Active Handle %d: tgt %d lun %d dlen %d\n",
   3312 		    i+1, XS_TGT(xs), XS_LUN(xs), XS_XFRLEN(xs));
   3313 	}
   3314 }
   3315 
   3316 static void
   3317 isp_fw_state(isp)
   3318 	struct ispsoftc *isp;
   3319 {
   3320 	mbreg_t mbs;
   3321 	if (isp->isp_type & ISP_HA_FC) {
   3322 		int once = 0;
   3323 		fcparam *fcp = isp->isp_param;
   3324 again:
   3325 		mbs.param[0] = MBOX_GET_FW_STATE;
   3326 		isp_mboxcmd(isp, &mbs);
   3327 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
   3328 			switch (mbs.param[0]) {
   3329 			case ASYNC_PDB_CHANGED:
   3330 				isp_mark_getpdb_all(isp);
   3331 				/* FALL THROUGH */
   3332 			case ASYNC_LIP_OCCURRED:
   3333 			case ASYNC_LOOP_UP:
   3334 			case ASYNC_LOOP_DOWN:
   3335 			case ASYNC_LOOP_RESET:
   3336 			case ASYNC_CHANGE_NOTIFY:
   3337 				if (once++ < 2) {
   3338 					goto again;
   3339 				}
   3340 				break;
   3341 			}
   3342 			isp_dumpregs(isp, "GET FIRMWARE STATE failed");
   3343 			return;
   3344 		}
   3345 		fcp->isp_fwstate = mbs.param[1];
   3346 	}
   3347 }
   3348 
   3349 static void
   3350 isp_update(isp)
   3351 	struct ispsoftc *isp;
   3352 {
   3353 	int tgt;
   3354 	mbreg_t mbs;
   3355 	sdparam *sdp;
   3356 
   3357 	isp->isp_update = 0;
   3358 
   3359 	if (isp->isp_type & ISP_HA_FC) {
   3360 		return;
   3361 	}
   3362 
   3363 	sdp = isp->isp_param;
   3364 	for (tgt = 0; tgt < MAX_TARGETS; tgt++) {
   3365 		u_int16_t flags, period, offset, changed;
   3366 		int get;
   3367 
   3368 		if (sdp->isp_devparam[tgt].dev_enable == 0) {
   3369 			continue;
   3370 		}
   3371 
   3372 		/*
   3373 		 * If the goal is to update the status of the device,
   3374 		 * take what's in dev_flags and try and set the device
   3375 		 * toward that. Otherwise, if we're just refreshing the
   3376 		 * current device state, get the current parameters.
   3377 		 */
   3378 		if (sdp->isp_devparam[tgt].dev_update) {
   3379 			mbs.param[0] = MBOX_SET_TARGET_PARAMS;
   3380 			mbs.param[2] = sdp->isp_devparam[tgt].dev_flags;
   3381 			mbs.param[3] =
   3382 				(sdp->isp_devparam[tgt].sync_offset << 8) |
   3383 				(sdp->isp_devparam[tgt].sync_period);
   3384 			sdp->isp_devparam[tgt].dev_update = 0;
   3385 			/*
   3386 			 * A command completion later that has
   3387 			 * RQSTF_NEGOTIATION set will cause
   3388 			 * the dev_refresh/announce cycle.
   3389 			 *
   3390 			 * Note: It is really important to update our current
   3391 			 * flags with at least the state of TAG capabilities-
   3392 			 * otherwise we might try and send a tagged command
   3393 			 * when we have it all turned off. So change it here
   3394 			 * to say that current already matches goal.
   3395 			 */
   3396 			sdp->isp_devparam[tgt].cur_dflags &= ~DPARM_TQING;
   3397 			sdp->isp_devparam[tgt].cur_dflags |=
   3398 			    (sdp->isp_devparam[tgt].dev_flags & DPARM_TQING);
   3399 			get = 0;
   3400 		} else if (sdp->isp_devparam[tgt].dev_refresh) {
   3401 			mbs.param[0] = MBOX_GET_TARGET_PARAMS;
   3402 			sdp->isp_devparam[tgt].dev_refresh = 0;
   3403 			get = 1;
   3404 		} else {
   3405 			continue;
   3406 		}
   3407 		mbs.param[1] = tgt << 8;
   3408 		isp_mboxcmd(isp, &mbs);
   3409 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
   3410 			PRINTF("%s: failed to %cet SCSI parameters for "
   3411 			    "target %d\n", isp->isp_name, (get)? 'g' : 's',
   3412 			    tgt);
   3413 			continue;
   3414 		}
   3415 
   3416 		if (get == 0) {
   3417 			/*
   3418 			 * XXX: Need a SYNC_TARGET for efficiency...
   3419 			 */
   3420 			isp->isp_sendmarker = 1;
   3421 			continue;
   3422 		}
   3423 		flags = mbs.param[2];
   3424 		period = mbs.param[3] & 0xff;
   3425 		offset = mbs.param[3] >> 8;
   3426 		if (sdp->isp_devparam[tgt].cur_dflags != flags ||
   3427 		    sdp->isp_devparam[tgt].cur_period != period ||
   3428 		    sdp->isp_devparam[tgt].cur_offset != offset) {
   3429 			IDPRINTF(3, ("%s: tgt %d flags 0x%x period %d "
   3430 			    "off %d\n", isp->isp_name, tgt, flags,
   3431 			    period, offset));
   3432 			changed = 1;
   3433 		} else {
   3434 			changed = 0;
   3435 		}
   3436 		sdp->isp_devparam[tgt].cur_dflags = flags;
   3437 		sdp->isp_devparam[tgt].cur_period = period;
   3438 		sdp->isp_devparam[tgt].cur_offset = offset;
   3439 		if (sdp->isp_devparam[tgt].dev_announced == 0 || changed) {
   3440 			if (isp_async(isp, ISPASYNC_NEW_TGT_PARAMS, &tgt))
   3441 				sdp->isp_devparam[tgt].dev_announced = 0;
   3442 			else
   3443 				sdp->isp_devparam[tgt].dev_announced = 1;
   3444 		}
   3445 	}
   3446 }
   3447 
   3448 static void
   3449 isp_setdfltparm(isp)
   3450 	struct ispsoftc *isp;
   3451 {
   3452 	int tgt;
   3453 	mbreg_t mbs;
   3454 	sdparam *sdp;
   3455 
   3456 	/*
   3457 	 * Been there, done that, got the T-shirt...
   3458 	 */
   3459 	if (isp->isp_gotdparms) {
   3460 		IDPRINTF(3, ("%s: already have dparms\n", isp->isp_name));
   3461 		return;
   3462 	}
   3463 	isp->isp_gotdparms = 1;
   3464 
   3465 	/*
   3466 	 * If we've not been told to avoid reading NVRAM, try and read it.
   3467 	 * If we're successful reading it, we can return since NVRAM will
   3468 	 * tell us the right thing to do. Otherwise, establish some reasonable
   3469 	 * defaults.
   3470 	 */
   3471 
   3472 	if ((isp->isp_confopts & ISP_CFG_NONVRAM) == 0) {
   3473 		if (isp_read_nvram(isp) == 0) {
   3474 			return;
   3475 		}
   3476 	}
   3477 	if (IS_FC(isp)) {
   3478 		fcparam *fcp = (fcparam *) isp->isp_param;
   3479 		fcp->isp_maxfrmlen = ICB_DFLT_FRMLEN;
   3480 		fcp->isp_maxalloc = 256;
   3481 		fcp->isp_execthrottle = 16;
   3482 		fcp->isp_retry_delay = 5;
   3483 		fcp->isp_retry_count = 0;
   3484 		/*
   3485 		 * It would be nice to fake up a WWN in case we don't
   3486 		 * get one out of NVRAM. Solaris does this for SOCAL
   3487 		 * cards that don't have SBus properties- it sets up
   3488 		 * a WWN based upon the system MAC Address.
   3489 		 */
   3490 		fcp->isp_wwn = 0;
   3491 		return;
   3492 	}
   3493 
   3494 	sdp = (sdparam *) isp->isp_param;
   3495 	mbs.param[0] = MBOX_GET_ACT_NEG_STATE;
   3496 	isp_mboxcmd(isp, &mbs);
   3497 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
   3498 		IDPRINTF(2, ("could not GET ACT NEG STATE\n"));
   3499 		sdp->isp_req_ack_active_neg = 1;
   3500 		sdp->isp_data_line_active_neg = 1;
   3501 	} else {
   3502 		sdp->isp_req_ack_active_neg = (mbs.param[1] >> 4) & 0x1;
   3503 		sdp->isp_data_line_active_neg = (mbs.param[1] >> 5) & 0x1;
   3504 	}
   3505 
   3506 	/*
   3507 	 * The trick here is to establish a default for the default (honk!)
   3508 	 * state (dev_flags). Then try and get the current status from
   3509 	 * the card to fill in the current state. We don't, in fact, set
   3510 	 * the default to the SAFE default state- that's not the goal state.
   3511 	 */
   3512 	for (tgt = 0; tgt < MAX_TARGETS; tgt++) {
   3513 		sdp->isp_devparam[tgt].cur_offset = 0;
   3514 		sdp->isp_devparam[tgt].cur_period = 0;
   3515 		sdp->isp_devparam[tgt].dev_flags = DPARM_DEFAULT;
   3516 		sdp->isp_devparam[tgt].cur_dflags = 0;
   3517 		if (isp->isp_type < ISP_HA_SCSI_1040 ||
   3518 		    (sdp->isp_clock && sdp->isp_clock < 60)) {
   3519 			sdp->isp_devparam[tgt].sync_offset =
   3520 			    ISP_10M_SYNCPARMS >> 8;
   3521 			sdp->isp_devparam[tgt].sync_period =
   3522 			    ISP_10M_SYNCPARMS & 0xff;
   3523 		} else if (IS_1080(isp)) {
   3524 			sdp->isp_devparam[tgt].sync_offset =
   3525 			    ISP_40M_SYNCPARMS >> 8;
   3526 			sdp->isp_devparam[tgt].sync_period =
   3527 			    ISP_40M_SYNCPARMS & 0xff;
   3528 		} else {
   3529 			sdp->isp_devparam[tgt].sync_offset =
   3530 			    ISP_20M_SYNCPARMS >> 8;
   3531 			sdp->isp_devparam[tgt].sync_period =
   3532 			    ISP_20M_SYNCPARMS & 0xff;
   3533 		}
   3534 
   3535 		/*
   3536 		 * Don't get current target parameters if we've been
   3537 		 * told not to use NVRAM- it's really the same thing.
   3538 		 */
   3539 		if (isp->isp_confopts & ISP_CFG_NONVRAM) {
   3540 			continue;
   3541 		}
   3542 
   3543 		mbs.param[0] = MBOX_GET_TARGET_PARAMS;
   3544 		mbs.param[1] = tgt << 8;
   3545 		isp_mboxcmd(isp, &mbs);
   3546 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
   3547 			continue;
   3548 		}
   3549 		sdp->isp_devparam[tgt].cur_dflags = mbs.param[2];
   3550 		sdp->isp_devparam[tgt].dev_flags = mbs.param[2];
   3551 		sdp->isp_devparam[tgt].cur_period = mbs.param[3] & 0xff;
   3552 		sdp->isp_devparam[tgt].cur_offset = mbs.param[3] >> 8;
   3553 
   3554 		/*
   3555 		 * The maximum period we can really see
   3556 		 * here is 100 (decimal), or 400 ns.
   3557 		 * For some unknown reason we sometimes
   3558 		 * get back wildass numbers from the
   3559 		 * boot device's parameters (alpha only).
   3560 		 */
   3561 		if ((mbs.param[3] & 0xff) <= 0x64) {
   3562 			sdp->isp_devparam[tgt].sync_period =
   3563 			    mbs.param[3] & 0xff;
   3564 			sdp->isp_devparam[tgt].sync_offset =
   3565 			    mbs.param[3] >> 8;
   3566 		}
   3567 
   3568 		/*
   3569 		 * It is not safe to run Ultra Mode with a clock < 60.
   3570 		 */
   3571 		if (((sdp->isp_clock && sdp->isp_clock < 60) ||
   3572 		    (isp->isp_type < ISP_HA_SCSI_1020A)) &&
   3573 		    (sdp->isp_devparam[tgt].sync_period <=
   3574 		    (ISP_20M_SYNCPARMS & 0xff))) {
   3575 			sdp->isp_devparam[tgt].sync_offset =
   3576 			    ISP_10M_SYNCPARMS >> 8;
   3577 			sdp->isp_devparam[tgt].sync_period =
   3578 			    ISP_10M_SYNCPARMS & 0xff;
   3579 		}
   3580 	}
   3581 
   3582 	/*
   3583 	 * Set Default Host Adapter Parameters
   3584 	 */
   3585 	sdp->isp_cmd_dma_burst_enable = 1;
   3586 	sdp->isp_data_dma_burst_enabl = 1;
   3587 	sdp->isp_fifo_threshold = 0;
   3588 	sdp->isp_initiator_id = 7;
   3589 	if (isp->isp_type >= ISP_HA_SCSI_1040) {
   3590 		sdp->isp_async_data_setup = 9;
   3591 	} else {
   3592 		sdp->isp_async_data_setup = 6;
   3593 	}
   3594 	sdp->isp_selection_timeout = 250;
   3595 	sdp->isp_max_queue_depth = 128;
   3596 	sdp->isp_tag_aging = 8;
   3597 	sdp->isp_bus_reset_delay = 3;
   3598 	sdp->isp_retry_count = 0;
   3599 	sdp->isp_retry_delay = 1;
   3600 
   3601 	for (tgt = 0; tgt < MAX_TARGETS; tgt++) {
   3602 		sdp->isp_devparam[tgt].exc_throttle = 16;
   3603 		sdp->isp_devparam[tgt].dev_enable = 1;
   3604 	}
   3605 }
   3606 
   3607 /*
   3608  * Re-initialize the ISP and complete all orphaned commands
   3609  * with a 'botched' notice.
   3610  *
   3611  * Locks held prior to coming here.
   3612  */
   3613 
   3614 void
   3615 isp_restart(isp)
   3616 	struct ispsoftc *isp;
   3617 {
   3618 	ISP_SCSI_XFER_T *tlist[RQUEST_QUEUE_LEN], *xs;
   3619 	int i;
   3620 
   3621 	for (i = 0; i < RQUEST_QUEUE_LEN; i++) {
   3622 		tlist[i] = (ISP_SCSI_XFER_T *) isp->isp_xflist[i];
   3623 		isp->isp_xflist[i] = NULL;
   3624 	}
   3625 	isp_reset(isp);
   3626 	if (isp->isp_state == ISP_RESETSTATE) {
   3627 		isp_init(isp);
   3628 		if (isp->isp_state == ISP_INITSTATE) {
   3629 			isp->isp_state = ISP_RUNSTATE;
   3630 		}
   3631 	}
   3632 	if (isp->isp_state != ISP_RUNSTATE) {
   3633 		PRINTF("%s: isp_restart cannot restart ISP\n", isp->isp_name);
   3634 	}
   3635 
   3636 	for (i = 0; i < RQUEST_QUEUE_LEN; i++) {
   3637 		xs = tlist[i];
   3638 		if (XS_NULL(xs)) {
   3639 			continue;
   3640 		}
   3641 		if (isp->isp_nactive > 0)
   3642 		    isp->isp_nactive--;
   3643 		XS_RESID(xs) = XS_XFRLEN(xs);
   3644 		XS_SETERR(xs, HBA_BUSRESET);
   3645 		XS_CMD_DONE(xs);
   3646 	}
   3647 }
   3648 
   3649 /*
   3650  * NVRAM Routines
   3651  */
   3652 
   3653 static int
   3654 isp_read_nvram(isp)
   3655 	struct ispsoftc *isp;
   3656 {
   3657 	int i, amt;
   3658 	u_int8_t csum, minversion;
   3659 	union {
   3660 		u_int8_t _x[ISP2100_NVRAM_SIZE];
   3661 		u_int16_t _s[ISP2100_NVRAM_SIZE>>1];
   3662 	} _n;
   3663 #define	nvram_data	_n._x
   3664 #define	nvram_words	_n._s
   3665 
   3666 	if (IS_FC(isp)) {
   3667 		amt = ISP2100_NVRAM_SIZE;
   3668 		minversion = 1;
   3669 	} else {
   3670 		amt = ISP_NVRAM_SIZE;
   3671 		minversion = 2;
   3672 	}
   3673 
   3674 	/*
   3675 	 * Just read the first two words first to see if we have a valid
   3676 	 * NVRAM to continue reading the rest with.
   3677 	 */
   3678 	for (i = 0; i < 2; i++) {
   3679 		isp_rdnvram_word(isp, i, &nvram_words[i]);
   3680 	}
   3681 	if (nvram_data[0] != 'I' || nvram_data[1] != 'S' ||
   3682 	    nvram_data[2] != 'P') {
   3683 		if (isp->isp_bustype != ISP_BT_SBUS) {
   3684 			PRINTF("%s: invalid NVRAM header\n", isp->isp_name);
   3685 		}
   3686 		return (-1);
   3687 	}
   3688 	for (i = 2; i < amt>>1; i++) {
   3689 		isp_rdnvram_word(isp, i, &nvram_words[i]);
   3690 	}
   3691 	for (csum = 0, i = 0; i < amt; i++) {
   3692 		csum += nvram_data[i];
   3693 	}
   3694 	if (csum != 0) {
   3695 		PRINTF("%s: invalid NVRAM checksum\n", isp->isp_name);
   3696 		return (-1);
   3697 	}
   3698 	if (ISP_NVRAM_VERSION(nvram_data) < minversion) {
   3699 		PRINTF("%s: version %d NVRAM not understood\n", isp->isp_name,
   3700 		    ISP_NVRAM_VERSION(nvram_data));
   3701 		return (-1);
   3702 	}
   3703 
   3704 	if (isp->isp_type & ISP_HA_SCSI) {
   3705 		sdparam *sdp = (sdparam *) isp->isp_param;
   3706 
   3707 		sdp->isp_fifo_threshold =
   3708 			ISP_NVRAM_FIFO_THRESHOLD(nvram_data) |
   3709 			(ISP_NVRAM_FIFO_THRESHOLD_128(nvram_data) << 2);
   3710 
   3711 		sdp->isp_initiator_id =
   3712 			ISP_NVRAM_INITIATOR_ID(nvram_data);
   3713 
   3714 		sdp->isp_bus_reset_delay =
   3715 			ISP_NVRAM_BUS_RESET_DELAY(nvram_data);
   3716 
   3717 		sdp->isp_retry_count =
   3718 			ISP_NVRAM_BUS_RETRY_COUNT(nvram_data);
   3719 
   3720 		sdp->isp_retry_delay =
   3721 			ISP_NVRAM_BUS_RETRY_DELAY(nvram_data);
   3722 
   3723 		sdp->isp_async_data_setup =
   3724 			ISP_NVRAM_ASYNC_DATA_SETUP_TIME(nvram_data);
   3725 
   3726 		if (isp->isp_type >= ISP_HA_SCSI_1040) {
   3727 			if (sdp->isp_async_data_setup < 9) {
   3728 				sdp->isp_async_data_setup = 9;
   3729 			}
   3730 		} else {
   3731 			if (sdp->isp_async_data_setup != 6) {
   3732 				sdp->isp_async_data_setup = 6;
   3733 			}
   3734 		}
   3735 
   3736 		sdp->isp_req_ack_active_neg =
   3737 			ISP_NVRAM_REQ_ACK_ACTIVE_NEGATION(nvram_data);
   3738 
   3739 		sdp->isp_data_line_active_neg =
   3740 			ISP_NVRAM_DATA_LINE_ACTIVE_NEGATION(nvram_data);
   3741 
   3742 		sdp->isp_data_dma_burst_enabl =
   3743 			ISP_NVRAM_DATA_DMA_BURST_ENABLE(nvram_data);
   3744 
   3745 		sdp->isp_cmd_dma_burst_enable =
   3746 			ISP_NVRAM_CMD_DMA_BURST_ENABLE(nvram_data);
   3747 
   3748 		sdp->isp_tag_aging =
   3749 			ISP_NVRAM_TAG_AGE_LIMIT(nvram_data);
   3750 
   3751 		sdp->isp_selection_timeout =
   3752 			ISP_NVRAM_SELECTION_TIMEOUT(nvram_data);
   3753 
   3754 		sdp->isp_max_queue_depth =
   3755 			ISP_NVRAM_MAX_QUEUE_DEPTH(nvram_data);
   3756 
   3757 		sdp->isp_fast_mttr = ISP_NVRAM_FAST_MTTR_ENABLE(nvram_data);
   3758 		if (isp->isp_dblev > 2) {
   3759 			static char *true = "true";
   3760 			static char *false = "false";
   3761 			PRINTF("%s: NVRAM values:\n", isp->isp_name);
   3762 			PRINTF("             Fifo Threshold = 0x%x\n",
   3763 			    sdp->isp_fifo_threshold);
   3764 			PRINTF("            Bus Reset Delay = %d\n",
   3765 			    sdp->isp_bus_reset_delay);
   3766 			PRINTF("                Retry Count = %d\n",
   3767 			    sdp->isp_retry_count);
   3768 			PRINTF("                Retry Delay = %d\n",
   3769 			    sdp->isp_retry_delay);
   3770 			PRINTF("              Tag Age Limit = %d\n",
   3771 			    sdp->isp_tag_aging);
   3772 			PRINTF("          Selection Timeout = %d\n",
   3773 			    sdp->isp_selection_timeout);
   3774 			PRINTF("            Max Queue Depth = %d\n",
   3775 			    sdp->isp_max_queue_depth);
   3776 			PRINTF("           Async Data Setup = 0x%x\n",
   3777 			    sdp->isp_async_data_setup);
   3778 			PRINTF("    REQ/ACK Active Negation = %s\n",
   3779 			    sdp->isp_req_ack_active_neg? true : false);
   3780 			PRINTF("  Data Line Active Negation = %s\n",
   3781 			    sdp->isp_data_line_active_neg? true : false);
   3782 			PRINTF("      Data DMA Burst Enable = %s\n",
   3783 			    sdp->isp_data_dma_burst_enabl? true : false);
   3784 			PRINTF("       Cmd DMA Burst Enable = %s\n",
   3785 			    sdp->isp_cmd_dma_burst_enable? true : false);
   3786 			PRINTF("                  Fast MTTR = %s\n",
   3787 			    sdp->isp_fast_mttr? true : false);
   3788 		}
   3789 		for (i = 0; i < MAX_TARGETS; i++) {
   3790 			sdp->isp_devparam[i].dev_enable =
   3791 				ISP_NVRAM_TGT_DEVICE_ENABLE(nvram_data, i);
   3792 			sdp->isp_devparam[i].exc_throttle =
   3793 				ISP_NVRAM_TGT_EXEC_THROTTLE(nvram_data, i);
   3794 			sdp->isp_devparam[i].sync_offset =
   3795 				ISP_NVRAM_TGT_SYNC_OFFSET(nvram_data, i);
   3796 			sdp->isp_devparam[i].sync_period =
   3797 				ISP_NVRAM_TGT_SYNC_PERIOD(nvram_data, i);
   3798 
   3799 			if (isp->isp_type < ISP_HA_SCSI_1040) {
   3800 				/*
   3801 				 * If we're not ultra, we can't possibly
   3802 				 * be a shorter period than this.
   3803 				 */
   3804 				if (sdp->isp_devparam[i].sync_period < 0x19) {
   3805 					sdp->isp_devparam[i].sync_period =
   3806 					    0x19;
   3807 				}
   3808 				if (sdp->isp_devparam[i].sync_offset > 0xc) {
   3809 					sdp->isp_devparam[i].sync_offset =
   3810 					    0x0c;
   3811 				}
   3812 			} else {
   3813 				if (sdp->isp_devparam[i].sync_offset > 0x8) {
   3814 					sdp->isp_devparam[i].sync_offset = 0x8;
   3815 				}
   3816 			}
   3817 			sdp->isp_devparam[i].dev_flags = 0;
   3818 			if (ISP_NVRAM_TGT_RENEG(nvram_data, i))
   3819 				sdp->isp_devparam[i].dev_flags |= DPARM_RENEG;
   3820 			if (ISP_NVRAM_TGT_QFRZ(nvram_data, i)) {
   3821 				PRINTF("%s: not supporting QFRZ option for "
   3822 				    "target %d\n", isp->isp_name, i);
   3823 			}
   3824 			sdp->isp_devparam[i].dev_flags |= DPARM_ARQ;
   3825 			if (ISP_NVRAM_TGT_ARQ(nvram_data, i) == 0) {
   3826 				PRINTF("%s: not disabling ARQ option for "
   3827 				    "target %d\n", isp->isp_name, i);
   3828 			}
   3829 			if (ISP_NVRAM_TGT_TQING(nvram_data, i))
   3830 				sdp->isp_devparam[i].dev_flags |= DPARM_TQING;
   3831 			if (ISP_NVRAM_TGT_SYNC(nvram_data, i))
   3832 				sdp->isp_devparam[i].dev_flags |= DPARM_SYNC;
   3833 			if (ISP_NVRAM_TGT_WIDE(nvram_data, i))
   3834 				sdp->isp_devparam[i].dev_flags |= DPARM_WIDE;
   3835 			if (ISP_NVRAM_TGT_PARITY(nvram_data, i))
   3836 				sdp->isp_devparam[i].dev_flags |= DPARM_PARITY;
   3837 			if (ISP_NVRAM_TGT_DISC(nvram_data, i))
   3838 				sdp->isp_devparam[i].dev_flags |= DPARM_DISC;
   3839 			sdp->isp_devparam[i].cur_dflags = 0; /* we don't know */
   3840 			if (isp->isp_dblev > 2) {
   3841 				PRINTF("   Target %d: Enabled %d Throttle %d "
   3842 				    "Offset %d Period %d Flags 0x%x\n", i,
   3843 				    sdp->isp_devparam[i].dev_enable,
   3844 				    sdp->isp_devparam[i].exc_throttle,
   3845 				    sdp->isp_devparam[i].sync_offset,
   3846 				    sdp->isp_devparam[i].sync_period,
   3847 				    sdp->isp_devparam[i].dev_flags);
   3848 			}
   3849 		}
   3850 	} else {
   3851 		fcparam *fcp = (fcparam *) isp->isp_param;
   3852 		union {
   3853 			struct {
   3854 #if	BYTE_ORDER == BIG_ENDIAN
   3855 				u_int32_t hi32;
   3856 				u_int32_t lo32;
   3857 #else
   3858 				u_int32_t lo32;
   3859 				u_int32_t hi32;
   3860 #endif
   3861 			} wds;
   3862 			u_int64_t full64;
   3863 		} wwnstore;
   3864 
   3865 		wwnstore.full64 = ISP2100_NVRAM_NODE_NAME(nvram_data);
   3866 		PRINTF("%s: Adapter WWN 0x%08x%08x\n", isp->isp_name,
   3867 		    wwnstore.wds.hi32, wwnstore.wds.lo32);
   3868 		fcp->isp_wwn = wwnstore.full64;
   3869 		wwnstore.full64 = ISP2100_NVRAM_BOOT_NODE_NAME(nvram_data);
   3870 		if (wwnstore.full64 != 0) {
   3871 			PRINTF("%s: BOOT DEVICE WWN 0x%08x%08x\n",
   3872 			    isp->isp_name, wwnstore.wds.hi32,
   3873 			    wwnstore.wds.lo32);
   3874 		}
   3875 		fcp->isp_maxalloc =
   3876 			ISP2100_NVRAM_MAXIOCBALLOCATION(nvram_data);
   3877 		fcp->isp_maxfrmlen =
   3878 			ISP2100_NVRAM_MAXFRAMELENGTH(nvram_data);
   3879 		fcp->isp_retry_delay =
   3880 			ISP2100_NVRAM_RETRY_DELAY(nvram_data);
   3881 		fcp->isp_retry_count =
   3882 			ISP2100_NVRAM_RETRY_COUNT(nvram_data);
   3883 		fcp->isp_loopid =
   3884 			ISP2100_NVRAM_HARDLOOPID(nvram_data);
   3885 		fcp->isp_execthrottle =
   3886 			ISP2100_NVRAM_EXECUTION_THROTTLE(nvram_data);
   3887 		fcp->isp_fwoptions = ISP2100_NVRAM_OPTIONS(nvram_data);
   3888 		if (isp->isp_dblev > 2) {
   3889 			PRINTF("%s: NVRAM values:\n", isp->isp_name);
   3890 			PRINTF("  Max IOCB Allocation = %d\n",
   3891 			    fcp->isp_maxalloc);
   3892 			PRINTF("     Max Frame Length = %d\n",
   3893 			    fcp->isp_maxfrmlen);
   3894 			PRINTF("   Execution Throttle = %d\n",
   3895 			    fcp->isp_execthrottle);
   3896 			PRINTF("          Retry Count = %d\n",
   3897 			    fcp->isp_retry_count);
   3898 			PRINTF("          Retry Delay = %d\n",
   3899 			    fcp->isp_retry_delay);
   3900 			PRINTF("         Hard Loop ID = %d\n",
   3901 			    fcp->isp_loopid);
   3902 			PRINTF("              Options = 0x%x\n",
   3903 			    fcp->isp_fwoptions);
   3904 			PRINTF("          HBA Options = 0x%x\n",
   3905 			    ISP2100_NVRAM_HBA_OPTIONS(nvram_data));
   3906 		}
   3907 	}
   3908 	IDPRINTF(3, ("%s: NVRAM is valid\n", isp->isp_name));
   3909 	return (0);
   3910 }
   3911 
   3912 static void
   3913 isp_rdnvram_word(isp, wo, rp)
   3914 	struct ispsoftc *isp;
   3915 	int wo;
   3916 	u_int16_t *rp;
   3917 {
   3918 	int i, cbits;
   3919 	u_int16_t bit, rqst;
   3920 
   3921 	ISP_WRITE(isp, BIU_NVRAM, BIU_NVRAM_SELECT);
   3922 	SYS_DELAY(2);
   3923 	ISP_WRITE(isp, BIU_NVRAM, BIU_NVRAM_SELECT|BIU_NVRAM_CLOCK);
   3924 	SYS_DELAY(2);
   3925 
   3926 	if (isp->isp_type & ISP_HA_FC) {
   3927 		wo &= ((ISP2100_NVRAM_SIZE >> 1) - 1);
   3928 		rqst = (ISP_NVRAM_READ << 8) | wo;
   3929 		cbits = 10;
   3930 	} else {
   3931 		wo &= ((ISP_NVRAM_SIZE >> 1) - 1);
   3932 		rqst = (ISP_NVRAM_READ << 6) | wo;
   3933 		cbits = 8;
   3934 	}
   3935 
   3936 	/*
   3937 	 * Clock the word select request out...
   3938 	 */
   3939 	for (i = cbits; i >= 0; i--) {
   3940 		if ((rqst >> i) & 1) {
   3941 			bit = BIU_NVRAM_SELECT | BIU_NVRAM_DATAOUT;
   3942 		} else {
   3943 			bit = BIU_NVRAM_SELECT;
   3944 		}
   3945 		ISP_WRITE(isp, BIU_NVRAM, bit);
   3946 		SYS_DELAY(2);
   3947 		ISP_WRITE(isp, BIU_NVRAM, bit | BIU_NVRAM_CLOCK);
   3948 		SYS_DELAY(2);
   3949 		ISP_WRITE(isp, BIU_NVRAM, bit);
   3950 		SYS_DELAY(2);
   3951 	}
   3952 	/*
   3953 	 * Now read the result back in (bits come back in MSB format).
   3954 	 */
   3955 	*rp = 0;
   3956 	for (i = 0; i < 16; i++) {
   3957 		u_int16_t rv;
   3958 		*rp <<= 1;
   3959 		ISP_WRITE(isp, BIU_NVRAM, BIU_NVRAM_SELECT|BIU_NVRAM_CLOCK);
   3960 		SYS_DELAY(2);
   3961 		rv = ISP_READ(isp, BIU_NVRAM);
   3962 		if (rv & BIU_NVRAM_DATAIN) {
   3963 			*rp |= 1;
   3964 		}
   3965 		SYS_DELAY(2);
   3966 		ISP_WRITE(isp, BIU_NVRAM, BIU_NVRAM_SELECT);
   3967 		SYS_DELAY(2);
   3968 	}
   3969 	ISP_WRITE(isp, BIU_NVRAM, 0);
   3970 	SYS_DELAY(2);
   3971 #if	BYTE_ORDER == BIG_ENDIAN
   3972 	*rp = ((*rp >> 8) | ((*rp & 0xff) << 8));
   3973 #endif
   3974 }
   3975