1 /* $FreeBSD: src/sys/dev/isp/isp_target.c,v 1.5.4.10 2002/07/29 04:25:59 mjacob Exp $ */
2 /* $DragonFly: src/sys/dev/disk/isp/isp_target.c,v 1.4 2004/02/13 01:04:15 joerg Exp $ */
4 * Machine and OS Independent Target Mode Code for the Qlogic SCSI/FC adapters.
6 * Copyright (c) 1999, 2000, 2001 by Matthew Jacob
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice immediately at the beginning of the file, without modification,
15 * this list of conditions, and the following disclaimer.
16 * 2. The name of the author may not be used to endorse or promote products
17 * derived from this software without specific prior written permission.
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
23 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * Bug fixes gratefully acknowledged from:
34 * Oded Kedem <oded@kashya.com>
37 * Include header file appropriate for platform we're building on.
41 #include <dev/ic/isp_netbsd.h>
43 #if defined(__DragonFly__) || defined(__FreeBSD__)
44 #include "isp_freebsd.h"
47 #include <dev/ic/isp_openbsd.h>
50 #include "isp_linux.h"
53 #ifdef ISP_TARGET_MODE
54 static const char atiocope[] =
55 "ATIO returned for lun %d because it was in the middle of Bus Device Reset "
57 static const char atior[] =
58 "ATIO returned on for lun %d on from IID %d because a Bus Reset occurred "
61 static void isp_got_msg(struct ispsoftc *, int, in_entry_t *);
62 static void isp_got_msg_fc(struct ispsoftc *, int, in_fcentry_t *);
63 static void isp_notify_ack(struct ispsoftc *, void *);
64 static void isp_handle_atio(struct ispsoftc *, at_entry_t *);
65 static void isp_handle_atio2(struct ispsoftc *, at2_entry_t *);
66 static void isp_handle_ctio(struct ispsoftc *, ct_entry_t *);
67 static void isp_handle_ctio2(struct ispsoftc *, ct2_entry_t *);
70 * The Qlogic driver gets an interrupt to look at response queue entries.
71 * Some of these are status completions for initiatior mode commands, but
72 * if target mode is enabled, we get a whole wad of response queue entries
75 * Basically the split into 3 main groups: Lun Enable/Modification responses,
76 * SCSI Command processing, and Immediate Notification events.
78 * You start by writing a request queue entry to enable target mode (and
79 * establish some resource limitations which you can modify later).
80 * The f/w responds with a LUN ENABLE or LUN MODIFY response with
81 * the status of this action. If the enable was successful, you can expect...
83 * Response queue entries with SCSI commands encapsulate show up in an ATIO
84 * (Accept Target IO) type- sometimes with enough info to stop the command at
85 * this level. Ultimately the driver has to feed back to the f/w's request
86 * queue a sequence of CTIOs (continue target I/O) that describe data to
87 * be moved and/or status to be sent) and finally finishing with sending
88 * to the f/w's response queue an ATIO which then completes the handshake
89 * with the f/w for that command. There's a lot of variations on this theme,
90 * including flags you can set in the CTIO for the Qlogic 2X00 fibre channel
91 * cards that 'auto-replenish' the f/w's ATIO count, but this is the basic
94 * The third group that can show up in the response queue are Immediate
95 * Notification events. These include things like notifications of SCSI bus
96 * resets, or Bus Device Reset messages or other messages received. This
97 * a classic oddbins area. It can get a little weird because you then turn
98 * around and acknowledge the Immediate Notify by writing an entry onto the
99 * request queue and then the f/w turns around and gives you an acknowledgement
100 * to *your* acknowledgement on the response queue (the idea being to let
101 * the f/w tell you when the event is *really* over I guess).
107 * A new response queue entry has arrived. The interrupt service code
108 * has already swizzled it into the platform dependent from canonical form.
110 * Because of the way this driver is designed, unfortunately most of the
111 * actual synchronization work has to be done in the platform specific
112 * code- we have no synchroniation primitives in the common code.
116 isp_target_notify(struct ispsoftc *isp, void *vptr, u_int16_t *optrp)
118 u_int16_t status, seqid;
126 in_fcentry_t *inot_fcp;
128 na_fcentry_t *nack_fcp;
131 #define atiop unp.atiop
132 #define at2iop unp.at2iop
133 #define ctiop unp.ctiop
134 #define ct2iop unp.ct2iop
135 #define lunenp unp.lunenp
136 #define inotp unp.inotp
137 #define inot_fcp unp.inot_fcp
138 #define nackp unp.nackp
139 #define nack_fcp unp.nack_fcp
142 u_int8_t local[QENTRY_LEN];
143 int bus, type, rval = 1;
145 type = isp_get_response_type(isp, (isphdr_t *)vptr);
148 ISP_TDQE(isp, "isp_target_notify", (int) *optrp, vptr);
152 isp_get_atio(isp, atiop, (at_entry_t *) local);
153 isp_handle_atio(isp, (at_entry_t *) local);
156 isp_get_ctio(isp, ctiop, (ct_entry_t *) local);
157 isp_handle_ctio(isp, (ct_entry_t *) local);
160 isp_get_atio2(isp, at2iop, (at2_entry_t *) local);
161 isp_handle_atio2(isp, (at2_entry_t *) local);
164 isp_get_ctio2(isp, ct2iop, (ct2_entry_t *) local);
165 isp_handle_ctio2(isp, (ct2_entry_t *) local);
167 case RQSTYPE_ENABLE_LUN:
168 case RQSTYPE_MODIFY_LUN:
169 isp_get_enable_lun(isp, lunenp, (lun_entry_t *) local);
170 (void) isp_async(isp, ISPASYNC_TARGET_ACTION, local);
175 * Either the ISP received a SCSI message it can't
176 * handle, or it's returning an Immed. Notify entry
177 * we sent. We can send Immed. Notify entries to
178 * increment the firmware's resource count for them
179 * (we set this initially in the Enable Lun entry).
183 isp_get_notify_fc(isp, inot_fcp, (in_fcentry_t *)local);
184 inot_fcp = (in_fcentry_t *) local;
185 status = inot_fcp->in_status;
186 seqid = inot_fcp->in_seqid;
188 isp_get_notify(isp, inotp, (in_entry_t *)local);
189 inotp = (in_entry_t *) local;
190 status = inotp->in_status & 0xff;
191 seqid = inotp->in_seqid;
192 if (IS_DUALBUS(isp)) {
193 bus = GET_BUS_VAL(inotp->in_iid);
194 SET_BUS_VAL(inotp->in_iid, 0);
197 isp_prt(isp, ISP_LOGTDEBUG0,
198 "Immediate Notify On Bus %d, status=0x%x seqid=0x%x",
204 isp_notify_ack(isp, (status == IN_RESET)? NULL : local);
207 (void) isp_async(isp, ISPASYNC_BUS_RESET, &bus);
209 case IN_MSG_RECEIVED:
210 case IN_IDE_RECEIVED:
212 isp_got_msg_fc(isp, bus, (in_fcentry_t *)local);
214 isp_got_msg(isp, bus, (in_entry_t *)local);
217 case IN_RSRC_UNAVAIL:
218 isp_prt(isp, ISP_LOGWARN, "Firmware out of ATIOs");
222 case IN_PORT_CHANGED:
224 (void) isp_async(isp, ISPASYNC_TARGET_ACTION, &local);
227 isp_prt(isp, ISP_LOGERR,
228 "bad status (0x%x) in isp_target_notify", status);
233 case RQSTYPE_NOTIFY_ACK:
235 * The ISP is acknowledging our acknowledgement of an
236 * Immediate Notify entry for some asynchronous event.
239 isp_get_notify_ack_fc(isp, nack_fcp,
240 (na_fcentry_t *)local);
241 nack_fcp = (na_fcentry_t *)local;
242 isp_prt(isp, ISP_LOGTDEBUG1,
243 "Notify Ack status=0x%x seqid 0x%x",
244 nack_fcp->na_status, nack_fcp->na_seqid);
246 isp_get_notify_ack(isp, nackp, (na_entry_t *)local);
247 nackp = (na_entry_t *)local;
248 isp_prt(isp, ISP_LOGTDEBUG1,
249 "Notify Ack event 0x%x status=0x%x seqid 0x%x",
250 nackp->na_event, nackp->na_status, nackp->na_seqid);
254 isp_prt(isp, ISP_LOGERR,
255 "Unknown entry type 0x%x in isp_target_notify", type);
274 * Toggle (on/off) target mode for bus/target/lun
276 * The caller has checked for overlap and legality.
278 * Note that not all of bus, target or lun can be paid attention to.
279 * Note also that this action will not be complete until the f/w writes
280 * response entry. The caller is responsible for synchronizing this.
283 isp_lun_cmd(struct ispsoftc *isp, int cmd, int bus, int tgt, int lun,
284 int cmd_cnt, int inot_cnt, u_int32_t opaque)
287 u_int16_t nxti, optr;
291 MEMZERO(&el, sizeof (el));
292 if (IS_DUALBUS(isp)) {
293 el.le_rsvd = (bus & 0x1) << 7;
295 el.le_cmd_count = cmd_cnt;
296 el.le_in_count = inot_cnt;
297 if (cmd == RQSTYPE_ENABLE_LUN) {
299 el.le_flags = LUN_TQAE|LUN_DISAD;
303 } else if (cmd == -RQSTYPE_ENABLE_LUN) {
304 cmd = RQSTYPE_ENABLE_LUN;
307 } else if (cmd == -RQSTYPE_MODIFY_LUN) {
308 cmd = RQSTYPE_MODIFY_LUN;
309 el.le_ops = LUN_CCDECR | LUN_INDECR;
311 el.le_ops = LUN_CCINCR | LUN_ININCR;
313 el.le_header.rqs_entry_type = cmd;
314 el.le_header.rqs_entry_count = 1;
315 el.le_reserved = opaque;
319 } else if ((FCPARAM(isp)->isp_fwattr & ISP_FW_ATTR_SCCLUN) == 0) {
324 if (isp_getrqentry(isp, &nxti, &optr, &outp)) {
325 isp_prt(isp, ISP_LOGERR,
326 "Request Queue Overflow in isp_lun_cmd");
329 ISP_TDQE(isp, "isp_lun_cmd", (int) optr, &el);
330 isp_put_enable_lun(isp, &el, outp);
331 ISP_ADD_REQUEST(isp, nxti);
337 isp_target_put_entry(struct ispsoftc *isp, void *ap)
340 u_int16_t nxti, optr;
341 u_int8_t etype = ((isphdr_t *) ap)->rqs_entry_type;
343 if (isp_getrqentry(isp, &nxti, &optr, &outp)) {
344 isp_prt(isp, ISP_LOGWARN,
345 "Request Queue Overflow in isp_target_put_entry");
350 isp_put_atio(isp, (at_entry_t *) ap, (at_entry_t *) outp);
353 isp_put_atio2(isp, (at2_entry_t *) ap, (at2_entry_t *) outp);
356 isp_put_ctio(isp, (ct_entry_t *) ap, (ct_entry_t *) outp);
359 isp_put_ctio2(isp, (ct2_entry_t *) ap, (ct2_entry_t *) outp);
362 isp_prt(isp, ISP_LOGERR,
363 "Unknown type 0x%x in isp_put_entry", etype);
367 ISP_TDQE(isp, "isp_target_put_entry", (int) optr, ap);;
368 ISP_ADD_REQUEST(isp, nxti);
373 isp_target_put_atio(struct ispsoftc *isp, void *arg)
380 MEMZERO(&atun, sizeof atun);
382 at2_entry_t *aep = arg;
383 atun._atio2.at_header.rqs_entry_type = RQSTYPE_ATIO2;
384 atun._atio2.at_header.rqs_entry_count = 1;
385 if (FCPARAM(isp)->isp_fwattr & ISP_FW_ATTR_SCCLUN) {
386 atun._atio2.at_scclun = (u_int16_t) aep->at_scclun;
388 atun._atio2.at_lun = (u_int8_t) aep->at_lun;
390 atun._atio2.at_status = CT_OK;
392 at_entry_t *aep = arg;
393 atun._atio.at_header.rqs_entry_type = RQSTYPE_ATIO;
394 atun._atio.at_header.rqs_entry_count = 1;
395 atun._atio.at_handle = aep->at_handle;
396 atun._atio.at_iid = aep->at_iid;
397 atun._atio.at_tgt = aep->at_tgt;
398 atun._atio.at_lun = aep->at_lun;
399 atun._atio.at_tag_type = aep->at_tag_type;
400 atun._atio.at_tag_val = aep->at_tag_val;
401 atun._atio.at_status = (aep->at_flags & AT_TQAE);
402 atun._atio.at_status |= CT_OK;
404 return (isp_target_put_entry(isp, &atun));
408 * Command completion- both for handling cases of no resources or
409 * no blackhole driver, or other cases where we have to, inline,
410 * finish the command sanely, or for normal command completion.
412 * The 'completion' code value has the scsi status byte in the low 8 bits.
413 * If status is a CHECK CONDITION and bit 8 is nonzero, then bits 12..15 have
414 * the sense key and bits 16..23 have the ASCQ and bits 24..31 have the ASC
417 * NB: the key, asc, ascq, cannot be used for parallel SCSI as it doesn't
418 * NB: inline SCSI sense reporting. As such, we lose this information. XXX.
420 * For both parallel && fibre channel, we use the feature that does
421 * an automatic resource autoreplenish so we don't have then later do
422 * put of an atio to replenish the f/w's resource count.
426 isp_endcmd(struct ispsoftc *isp, void *arg, u_int32_t code, u_int16_t hdl)
434 MEMZERO(&un, sizeof un);
438 at2_entry_t *aep = arg;
439 ct2_entry_t *cto = &un._ctio2;
441 cto->ct_header.rqs_entry_type = RQSTYPE_CTIO2;
442 cto->ct_header.rqs_entry_count = 1;
443 cto->ct_iid = aep->at_iid;
444 if ((FCPARAM(isp)->isp_fwattr & ISP_FW_ATTR_SCCLUN) == 0) {
445 cto->ct_lun = aep->at_lun;
447 cto->ct_rxid = aep->at_rxid;
448 cto->rsp.m1.ct_scsi_status = sts & 0xff;
449 cto->ct_flags = CT2_SENDSTATUS | CT2_NO_DATA | CT2_FLAG_MODE1;
451 cto->ct_flags |= CT2_CCINCR;
453 if (aep->at_datalen) {
454 cto->ct_resid = aep->at_datalen;
455 cto->rsp.m1.ct_scsi_status |= CT2_DATA_UNDER;
457 if ((sts & 0xff) == SCSI_CHECK && (sts & ECMD_SVALID)) {
458 cto->rsp.m1.ct_resp[0] = 0xf0;
459 cto->rsp.m1.ct_resp[2] = (code >> 12) & 0xf;
460 cto->rsp.m1.ct_resp[7] = 8;
461 cto->rsp.m1.ct_resp[12] = (code >> 24) & 0xff;
462 cto->rsp.m1.ct_resp[13] = (code >> 16) & 0xff;
463 cto->rsp.m1.ct_senselen = 16;
464 cto->rsp.m1.ct_scsi_status |= CT2_SNSLEN_VALID;
466 cto->ct_syshandle = hdl;
468 at_entry_t *aep = arg;
469 ct_entry_t *cto = &un._ctio;
471 cto->ct_header.rqs_entry_type = RQSTYPE_CTIO;
472 cto->ct_header.rqs_entry_count = 1;
473 cto->ct_fwhandle = aep->at_handle;
474 cto->ct_iid = aep->at_iid;
475 cto->ct_tgt = aep->at_tgt;
476 cto->ct_lun = aep->at_lun;
477 cto->ct_tag_type = aep->at_tag_type;
478 cto->ct_tag_val = aep->at_tag_val;
479 if (aep->at_flags & AT_TQAE) {
480 cto->ct_flags |= CT_TQAE;
482 cto->ct_flags = CT_SENDSTATUS | CT_NO_DATA;
484 cto->ct_flags |= CT_CCINCR;
486 cto->ct_scsi_status = sts;
487 cto->ct_syshandle = hdl;
489 return (isp_target_put_entry(isp, &un));
493 isp_target_async(struct ispsoftc *isp, int bus, int event)
500 * These three we handle here to propagate an effective bus reset
501 * upstream, but these do not require any immediate notify actions
502 * so we return when done.
505 case ASYNC_LIP_OCCURRED:
507 case ASYNC_LOOP_DOWN:
508 case ASYNC_LOOP_RESET:
511 * These don't require any immediate notify actions. We used
512 * treat them like SCSI Bus Resets, but that was just plain
513 * wrong. Let the normal CTIO completion report what occurred.
517 case ASYNC_BUS_RESET:
518 case ASYNC_TIMEOUT_RESET:
520 return (0); /* we'll be getting an inotify instead */
523 evt.ev_event = event;
524 (void) isp_async(isp, ISPASYNC_TARGET_EVENT, &evt);
526 case ASYNC_DEVICE_RESET:
528 * Bus Device Reset resets a specific target, so
529 * we pass this as a synthesized message.
531 MEMZERO(&msg, sizeof msg);
533 msg.nt_iid = FCPARAM(isp)->isp_loopid;
535 msg.nt_iid = SDPARAM(isp)->isp_initiator_id;
538 msg.nt_msg[0] = MSG_BUS_DEV_RESET;
539 (void) isp_async(isp, ISPASYNC_TARGET_MESSAGE, &msg);
542 isp_prt(isp, ISP_LOGERR,
543 "isp_target_async: unknown event 0x%x", event);
546 if (isp->isp_state == ISP_RUNSTATE)
547 isp_notify_ack(isp, NULL);
553 * Process a received message.
554 * The ISP firmware can handle most messages, there are only
555 * a few that we need to deal with:
556 * - abort: clean up the current command
557 * - abort tag and clear queue
561 isp_got_msg(struct ispsoftc *isp, int bus, in_entry_t *inp)
563 u_int8_t status = inp->in_status & ~QLTM_SVALID;
565 if (status == IN_IDE_RECEIVED || status == IN_MSG_RECEIVED) {
568 MEMZERO(&msg, sizeof (msg));
570 msg.nt_iid = inp->in_iid;
571 msg.nt_tgt = inp->in_tgt;
572 msg.nt_lun = inp->in_lun;
573 msg.nt_tagtype = inp->in_tag_type;
574 msg.nt_tagval = inp->in_tag_val;
575 MEMCPY(msg.nt_msg, inp->in_msg, IN_MSGLEN);
576 (void) isp_async(isp, ISPASYNC_TARGET_MESSAGE, &msg);
578 isp_prt(isp, ISP_LOGERR,
579 "unknown immediate notify status 0x%x", inp->in_status);
584 * Synthesize a message from the task management flags in a FCP_CMND_IU.
587 isp_got_msg_fc(struct ispsoftc *isp, int bus, in_fcentry_t *inp)
590 static const char f1[] = "%s from iid %d lun %d seq 0x%x";
591 static const char f2[] =
592 "unknown %s 0x%x lun %d iid %d task flags 0x%x seq 0x%x\n";
594 if (FCPARAM(isp)->isp_fwattr & ISP_FW_ATTR_SCCLUN) {
595 lun = inp->in_scclun;
600 if (inp->in_status != IN_MSG_RECEIVED) {
601 isp_prt(isp, ISP_LOGINFO, f2, "immediate notify status",
602 inp->in_status, lun, inp->in_iid,
603 inp->in_task_flags, inp->in_seqid);
607 MEMZERO(&msg, sizeof (msg));
609 msg.nt_iid = inp->in_iid;
610 msg.nt_tagval = inp->in_seqid;
613 if (inp->in_task_flags & TASK_FLAGS_ABORT_TASK) {
614 isp_prt(isp, ISP_LOGINFO, f1, "ABORT TASK",
615 inp->in_iid, msg.nt_lun, inp->in_seqid);
616 msg.nt_msg[0] = MSG_ABORT_TAG;
617 } else if (inp->in_task_flags & TASK_FLAGS_CLEAR_TASK_SET) {
618 isp_prt(isp, ISP_LOGINFO, f1, "CLEAR TASK SET",
619 inp->in_iid, msg.nt_lun, inp->in_seqid);
620 msg.nt_msg[0] = MSG_CLEAR_QUEUE;
621 } else if (inp->in_task_flags & TASK_FLAGS_TARGET_RESET) {
622 isp_prt(isp, ISP_LOGINFO, f1, "TARGET RESET",
623 inp->in_iid, msg.nt_lun, inp->in_seqid);
624 msg.nt_msg[0] = MSG_BUS_DEV_RESET;
625 } else if (inp->in_task_flags & TASK_FLAGS_CLEAR_ACA) {
626 isp_prt(isp, ISP_LOGINFO, f1, "CLEAR ACA",
627 inp->in_iid, msg.nt_lun, inp->in_seqid);
629 msg.nt_msg[0] = MSG_REL_RECOVERY;
630 } else if (inp->in_task_flags & TASK_FLAGS_TERMINATE_TASK) {
631 isp_prt(isp, ISP_LOGINFO, f1, "TERMINATE TASK",
632 inp->in_iid, msg.nt_lun, inp->in_seqid);
633 msg.nt_msg[0] = MSG_TERM_IO_PROC;
635 isp_prt(isp, ISP_LOGWARN, f2, "task flag",
636 inp->in_status, msg.nt_lun, inp->in_iid,
637 inp->in_task_flags, inp->in_seqid);
640 (void) isp_async(isp, ISPASYNC_TARGET_MESSAGE, &msg);
646 isp_notify_ack(struct ispsoftc *isp, void *arg)
648 char storage[QENTRY_LEN];
649 u_int16_t nxti, optr;
652 if (isp_getrqentry(isp, &nxti, &optr, &outp)) {
653 isp_prt(isp, ISP_LOGWARN,
654 "Request Queue Overflow For isp_notify_ack");
658 MEMZERO(storage, QENTRY_LEN);
661 na_fcentry_t *na = (na_fcentry_t *) storage;
663 in_fcentry_t *inp = arg;
664 MEMCPY(storage, arg, sizeof (isphdr_t));
665 na->na_iid = inp->in_iid;
666 if (FCPARAM(isp)->isp_fwattr & ISP_FW_ATTR_SCCLUN) {
667 na->na_lun = inp->in_scclun;
669 na->na_lun = inp->in_lun;
671 na->na_task_flags = inp->in_task_flags;
672 na->na_seqid = inp->in_seqid;
673 na->na_flags = NAFC_RCOUNT;
674 na->na_status = inp->in_status;
675 if (inp->in_status == IN_RESET) {
676 na->na_flags |= NAFC_RST_CLRD;
679 na->na_flags = NAFC_RST_CLRD;
681 na->na_header.rqs_entry_type = RQSTYPE_NOTIFY_ACK;
682 na->na_header.rqs_entry_count = 1;
683 isp_put_notify_ack_fc(isp, na, (na_fcentry_t *)outp);
685 na_entry_t *na = (na_entry_t *) storage;
687 in_entry_t *inp = arg;
688 MEMCPY(storage, arg, sizeof (isphdr_t));
689 na->na_iid = inp->in_iid;
690 na->na_lun = inp->in_lun;
691 na->na_tgt = inp->in_tgt;
692 na->na_seqid = inp->in_seqid;
693 if (inp->in_status == IN_RESET) {
694 na->na_event = NA_RST_CLRD;
697 na->na_event = NA_RST_CLRD;
699 na->na_header.rqs_entry_type = RQSTYPE_NOTIFY_ACK;
700 na->na_header.rqs_entry_count = 1;
701 isp_put_notify_ack(isp, na, (na_entry_t *)outp);
703 ISP_TDQE(isp, "isp_notify_ack", (int) optr, storage);
704 ISP_ADD_REQUEST(isp, nxti);
708 isp_handle_atio(struct ispsoftc *isp, at_entry_t *aep)
713 * The firmware status (except for the QLTM_SVALID bit) indicates
714 * why this ATIO was sent to us.
716 * If QLTM_SVALID is set, the firware has recommended Sense Data.
718 * If the DISCONNECTS DISABLED bit is set in the flags field,
719 * we're still connected on the SCSI bus - i.e. the initiator
720 * did not set DiscPriv in the identify message. We don't care
721 * about this so it's ignored.
724 switch(aep->at_status & ~QLTM_SVALID) {
725 case AT_PATH_INVALID:
727 * ATIO rejected by the firmware due to disabled lun.
729 isp_prt(isp, ISP_LOGERR,
730 "rejected ATIO for disabled lun %d", lun);
734 * Requested Capability not available
735 * We sent an ATIO that overflowed the firmware's
736 * command resource count.
738 isp_prt(isp, ISP_LOGERR,
739 "rejected ATIO for lun %d because of command count"
745 * If we send an ATIO to the firmware to increment
746 * its command resource count, and the firmware is
747 * recovering from a Bus Device Reset, it returns
748 * the ATIO with this status. We set the command
749 * resource count in the Enable Lun entry and do
750 * not increment it. Therefore we should never get
753 isp_prt(isp, ISP_LOGERR, atiocope, lun,
754 GET_BUS_VAL(aep->at_iid));
757 case AT_CDB: /* Got a CDB */
758 case AT_PHASE_ERROR: /* Bus Phase Sequence Error */
760 * Punt to platform specific layer.
762 (void) isp_async(isp, ISPASYNC_TARGET_ACTION, aep);
767 * A bus reset came along an blew away this command. Why
768 * they do this in addition the async event code stuff,
771 * Ignore it because the async event will clear things
774 isp_prt(isp, ISP_LOGWARN, atior, lun,
775 GET_IID_VAL(aep->at_iid), GET_BUS_VAL(aep->at_iid));
780 isp_prt(isp, ISP_LOGERR,
781 "Unknown ATIO status 0x%x from initiator %d for lun %d",
782 aep->at_status, aep->at_iid, lun);
783 (void) isp_target_put_atio(isp, aep);
789 isp_handle_atio2(struct ispsoftc *isp, at2_entry_t *aep)
793 if (FCPARAM(isp)->isp_fwattr & ISP_FW_ATTR_SCCLUN) {
794 lun = aep->at_scclun;
800 * The firmware status (except for the QLTM_SVALID bit) indicates
801 * why this ATIO was sent to us.
803 * If QLTM_SVALID is set, the firware has recommended Sense Data.
805 * If the DISCONNECTS DISABLED bit is set in the flags field,
806 * we're still connected on the SCSI bus - i.e. the initiator
807 * did not set DiscPriv in the identify message. We don't care
808 * about this so it's ignored.
811 switch(aep->at_status & ~QLTM_SVALID) {
812 case AT_PATH_INVALID:
814 * ATIO rejected by the firmware due to disabled lun.
816 isp_prt(isp, ISP_LOGERR,
817 "rejected ATIO2 for disabled lun %d", lun);
821 * Requested Capability not available
822 * We sent an ATIO that overflowed the firmware's
823 * command resource count.
825 isp_prt(isp, ISP_LOGERR,
826 "rejected ATIO2 for lun %d- command count overflow", lun);
831 * If we send an ATIO to the firmware to increment
832 * its command resource count, and the firmware is
833 * recovering from a Bus Device Reset, it returns
834 * the ATIO with this status. We set the command
835 * resource count in the Enable Lun entry and no
836 * not increment it. Therefore we should never get
839 isp_prt(isp, ISP_LOGERR, atiocope, lun, 0);
842 case AT_CDB: /* Got a CDB */
844 * Punt to platform specific layer.
846 (void) isp_async(isp, ISPASYNC_TARGET_ACTION, aep);
851 * A bus reset came along an blew away this command. Why
852 * they do this in addition the async event code stuff,
855 * Ignore it because the async event will clear things
858 isp_prt(isp, ISP_LOGERR, atior, lun, aep->at_iid, 0);
863 isp_prt(isp, ISP_LOGERR,
864 "Unknown ATIO2 status 0x%x from initiator %d for lun %d",
865 aep->at_status, aep->at_iid, lun);
866 (void) isp_target_put_atio(isp, aep);
872 isp_handle_ctio(struct ispsoftc *isp, ct_entry_t *ct)
875 int pl = ISP_LOGTDEBUG2;
878 if (ct->ct_syshandle) {
879 xs = isp_find_xs(isp, ct->ct_syshandle);
886 switch(ct->ct_status & ~QLTM_SVALID) {
889 * There are generally 3 possibilities as to why we'd get
891 * We disconnected after receiving a CDB.
892 * We sent or received data.
893 * We sent status & command complete.
896 if (ct->ct_flags & CT_SENDSTATUS) {
898 } else if ((ct->ct_flags & CT_DATAMASK) == CT_NO_DATA) {
900 * Nothing to do in this case.
902 isp_prt(isp, pl, "CTIO- iid %d disconnected OK",
910 * Bus Device Reset message received or the SCSI Bus has
911 * been Reset; the firmware has gone to Bus Free.
913 * The firmware generates an async mailbox interupt to
914 * notify us of this and returns outstanding CTIOs with this
915 * status. These CTIOs are handled in that same way as
916 * CT_ABORTED ones, so just fall through here.
918 fmsg = "Bus Device Reset";
926 * When an Abort message is received the firmware goes to
927 * Bus Free and returns all outstanding CTIOs with the status
928 * set, then sends us an Immediate Notify entry.
931 fmsg = "ABORT TAG message sent by Initiator";
933 isp_prt(isp, ISP_LOGWARN, "CTIO destroyed by %s", fmsg);
938 * CTIO rejected by the firmware due to disabled lun.
941 isp_prt(isp, ISP_LOGERR,
942 "Firmware rejected CTIO for disabled lun %d",
948 * CTIO rejected by the firmware due "no path for the
949 * nondisconnecting nexus specified". This means that
950 * we tried to access the bus while a non-disconnecting
951 * command is in process.
953 isp_prt(isp, ISP_LOGERR,
954 "Firmware rejected CTIO for bad nexus %d/%d/%d",
955 ct->ct_iid, ct->ct_tgt, ct->ct_lun);
959 fmsg = "Reselection";
964 isp_prt(isp, ISP_LOGERR, "Firmware timed out on %s", fmsg);
969 fmsg = "Unrecoverable Error";
973 fmsg = "Completed with Error";
977 fmsg = "Phase Sequence Error";
981 fmsg = "terminated by TERMINATE TRANSFER";
985 fmsg = "unacknowledged Immediate Notify pending";
986 isp_prt(isp, ISP_LOGERR, "CTIO returned by f/w- %s", fmsg);
989 isp_prt(isp, ISP_LOGERR, "Unknown CTIO status 0x%x",
990 ct->ct_status & ~QLTM_SVALID);
996 * There may be more than one CTIO for a data transfer,
997 * or this may be a status CTIO we're not monitoring.
999 * The assumption is that they'll all be returned in the
1000 * order we got them.
1002 if (ct->ct_syshandle == 0) {
1003 if ((ct->ct_flags & CT_SENDSTATUS) == 0) {
1005 "intermediate CTIO completed ok");
1008 "unmonitored CTIO completed ok");
1012 "NO xs for CTIO (handle 0x%x) status 0x%x",
1013 ct->ct_syshandle, ct->ct_status & ~QLTM_SVALID);
1017 * Final CTIO completed. Release DMA resources and
1018 * notify platform dependent layers.
1020 if ((ct->ct_flags & CT_DATAMASK) != CT_NO_DATA) {
1021 ISP_DMAFREE(isp, xs, ct->ct_syshandle);
1023 isp_prt(isp, pl, "final CTIO complete");
1025 * The platform layer will destroy the handle if appropriate.
1027 (void) isp_async(isp, ISPASYNC_TARGET_ACTION, ct);
1032 isp_handle_ctio2(struct ispsoftc *isp, ct2_entry_t *ct)
1035 int pl = ISP_LOGTDEBUG2;
1038 if (ct->ct_syshandle) {
1039 xs = isp_find_xs(isp, ct->ct_syshandle);
1046 switch(ct->ct_status & ~QLTM_SVALID) {
1048 isp_prt(isp, ISP_LOGERR, "PCI DMA Bus Error");
1054 * There are generally 2 possibilities as to why we'd get
1056 * We sent or received data.
1057 * We sent status & command complete.
1064 * Target Reset function received.
1066 * The firmware generates an async mailbox interupt to
1067 * notify us of this and returns outstanding CTIOs with this
1068 * status. These CTIOs are handled in that same way as
1069 * CT_ABORTED ones, so just fall through here.
1071 fmsg = "TARGET RESET Task Management Function Received";
1079 * When an Abort message is received the firmware goes to
1080 * Bus Free and returns all outstanding CTIOs with the status
1081 * set, then sends us an Immediate Notify entry.
1084 fmsg = "ABORT Task Management Function Received";
1086 isp_prt(isp, ISP_LOGERR, "CTIO2 destroyed by %s", fmsg);
1091 * CTIO rejected by the firmware - invalid data direction.
1093 isp_prt(isp, ISP_LOGERR, "CTIO2 had wrong data directiond");
1097 fmsg = "failure to reconnect to initiator";
1102 isp_prt(isp, ISP_LOGERR, "Firmware timed out on %s", fmsg);
1106 fmsg = "Completed with Error";
1110 fmsg = "Port Logout";
1112 case CT_PORTNOTAVAIL:
1114 fmsg = "Port not available";
1115 case CT_PORTCHANGED:
1117 fmsg = "Port Changed";
1120 fmsg = "unacknowledged Immediate Notify pending";
1121 isp_prt(isp, ISP_LOGERR, "CTIO returned by f/w- %s", fmsg);
1126 * CTIO rejected by the firmware because an invalid RX_ID.
1127 * Just print a message.
1129 isp_prt(isp, ISP_LOGERR,
1130 "CTIO2 completed with Invalid RX_ID 0x%x", ct->ct_rxid);
1134 isp_prt(isp, ISP_LOGERR, "Unknown CTIO2 status 0x%x",
1135 ct->ct_status & ~QLTM_SVALID);
1141 * There may be more than one CTIO for a data transfer,
1142 * or this may be a status CTIO we're not monitoring.
1144 * The assumption is that they'll all be returned in the
1145 * order we got them.
1147 if (ct->ct_syshandle == 0) {
1148 if ((ct->ct_flags & CT_SENDSTATUS) == 0) {
1150 "intermediate CTIO completed ok");
1153 "unmonitored CTIO completed ok");
1157 "NO xs for CTIO (handle 0x%x) status 0x%x",
1158 ct->ct_syshandle, ct->ct_status & ~QLTM_SVALID);
1161 if ((ct->ct_flags & CT2_DATAMASK) != CT2_NO_DATA) {
1162 ISP_DMAFREE(isp, xs, ct->ct_syshandle);
1164 if (ct->ct_flags & CT_SENDSTATUS) {
1166 * Sent status and command complete.
1168 * We're now really done with this command, so we
1169 * punt to the platform dependent layers because
1170 * only there can we do the appropriate command
1171 * complete thread synchronization.
1173 isp_prt(isp, pl, "status CTIO complete");
1176 * Final CTIO completed. Release DMA resources and
1177 * notify platform dependent layers.
1179 isp_prt(isp, pl, "data CTIO complete");
1181 (void) isp_async(isp, ISPASYNC_TARGET_ACTION, ct);
1183 * The platform layer will destroy the handle if appropriate.