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Sync CAM with FreeBSD using lockmgr locks instead of mutexes.
[dragonfly.git] / sys / dev / raid / iir / iir.c
blob113bcb3e9bd7e10f9fa4ab806d7aa0519e501b25
1 /* $FreeBSD: src/sys/dev/iir/iir.c,v 1.2.2.3 2002/05/05 08:18:12 asmodai Exp $ */
2 /* $DragonFly: src/sys/dev/raid/iir/iir.c,v 1.21 2008/05/18 20:30:23 pavalos Exp $ */
3 /*
4 * Copyright (c) 2000-01 Intel Corporation
5 * All Rights Reserved
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions, and the following disclaimer,
12 * without modification, immediately at the beginning of the file.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. The name of the author may not be used to endorse or promote products
17 * derived from this software without specific prior written permission.
18 *
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
29 * SUCH DAMAGE.
30 */
31
32 /*
33 * iir.c: SCSI dependant code for the Intel Integrated RAID Controller driver
34 *
35 * Written by: Achim Leubner <achim.leubner@intel.com>
36 * Fixes/Additions: Boji Tony Kannanthanam <boji.t.kannanthanam@intel.com>
37 *
38 * credits: Niklas Hallqvist; OpenBSD driver for the ICP Controllers.
39 * Mike Smith; Some driver source code.
40 * FreeBSD.ORG; Great O/S to work on and for.
41 *
42 * TODO:
43 */
44
45 #ident "$Id: iir.c 1.2 2001/06/21 20:28:32 achim Exp $"
46
47 #define _IIR_C_
48
49 /* #include "opt_iir.h" */
50 #include <sys/param.h>
51 #include <sys/systm.h>
52 #include <sys/types.h>
53 #include <sys/eventhandler.h>
54 #include <sys/malloc.h>
55 #include <sys/kernel.h>
56 #include <sys/bus.h>
57 #include <sys/thread2.h>
58
59 #include <machine/clock.h>
60 #include <machine/stdarg.h>
61
62 #include <bus/cam/cam.h>
63 #include <bus/cam/cam_ccb.h>
64 #include <bus/cam/cam_sim.h>
65 #include <bus/cam/cam_xpt_sim.h>
66 #include <bus/cam/cam_debug.h>
67 #include <bus/cam/scsi/scsi_all.h>
68 #include <bus/cam/scsi/scsi_message.h>
69
70 #include <vm/vm.h>
71 #include <vm/pmap.h>
72
73 #include "iir.h"
74
75 struct gdt_softc *gdt_wait_gdt;
76 int gdt_wait_index;
77
78 #ifdef GDT_DEBUG
79 int gdt_debug = GDT_DEBUG;
80 #ifdef __SERIAL__
81 #define MAX_SERBUF 160
82 static void ser_init(void);
83 static void ser_puts(char *str);
84 static void ser_putc(int c);
85 static char strbuf[MAX_SERBUF+1];
86 #ifdef __COM2__
87 #define COM_BASE 0x2f8
88 #else
89 #define COM_BASE 0x3f8
90 #endif
91 static void ser_init()
92 {
93 unsigned port=COM_BASE;
94
95 outb(port+3, 0x80);
96 outb(port+1, 0);
97 /* 19200 Baud, if 9600: outb(12,port) */
98 outb(port, 6);
99 outb(port+3, 3);
100 outb(port+1, 0);
101 }
102
103 static void ser_puts(char *str)
104 {
105 char *ptr;
106
107 ser_init();
108 for (ptr=str;*ptr;++ptr)
109 ser_putc((int)(*ptr));
110 }
111
112 static void ser_putc(int c)
113 {
114 unsigned port=COM_BASE;
115
116 while ((inb(port+5) & 0x20)==0);
117 outb(port, c);
118 if (c==0x0a)
119 {
120 while ((inb(port+5) & 0x20)==0);
121 outb(port, 0x0d);
122 }
123 }
124
125 int
126 ser_kprintf(const char *fmt, ...)
127 {
128 __va_list args;
129 int i;
130
131 __va_start(args,fmt);
132 i = kvsprintf(strbuf,fmt,args);
133 ser_puts(strbuf);
134 __va_end(args);
135 return i;
136 }
137 #endif
138 #endif
139
140 /* The linked list of softc structures */
141 struct gdt_softc_list gdt_softcs = TAILQ_HEAD_INITIALIZER(gdt_softcs);
142 /* controller cnt. */
143 int gdt_cnt = 0;
144 /* event buffer */
145 static gdt_evt_str ebuffer[GDT_MAX_EVENTS];
146 static int elastidx, eoldidx;
147 /* statistics */
148 gdt_statist_t gdt_stat;
149
150 /* Definitions for our use of the SIM private CCB area */
151 #define ccb_sim_ptr spriv_ptr0
152 #define ccb_priority spriv_field1
153
154 static void iir_action(struct cam_sim *sim, union ccb *ccb);
155 static void iir_poll(struct cam_sim *sim);
156 static void iir_shutdown(void *arg, int howto);
157 static void iir_timeout(void *arg);
158 static void iir_watchdog(void *arg);
159
160 static void gdt_eval_mapping(u_int32_t size, int *cyls, int *heads,
161 int *secs);
162 static int gdt_internal_cmd(struct gdt_softc *gdt, struct gdt_ccb *gccb,
163 u_int8_t service, u_int16_t opcode,
164 u_int32_t arg1, u_int32_t arg2, u_int32_t arg3);
165 static int gdt_wait(struct gdt_softc *gdt, struct gdt_ccb *ccb,
166 int timeout);
167
168 static struct gdt_ccb *gdt_get_ccb(struct gdt_softc *gdt);
169 static u_int32_t gdt_ccb_vtop(struct gdt_softc *gdt,
170 struct gdt_ccb *gccb);
171
172 static int gdt_sync_event(struct gdt_softc *gdt, int service,
173 u_int8_t index, struct gdt_ccb *gccb);
174 static int gdt_async_event(struct gdt_softc *gdt, int service);
175 static struct gdt_ccb *gdt_raw_cmd(struct gdt_softc *gdt, union ccb *ccb);
176 static struct gdt_ccb *gdt_cache_cmd(struct gdt_softc *gdt, union ccb *ccb);
177 static struct gdt_ccb *gdt_ioctl_cmd(struct gdt_softc *gdt, gdt_ucmd_t *ucmd);
178 static void gdt_internal_cache_cmd(struct gdt_softc *gdt,union ccb *ccb);
179
180 static void gdtmapmem(void *arg, bus_dma_segment_t *dm_segs,
181 int nseg, int error);
182 static void gdtexecuteccb(void *arg, bus_dma_segment_t *dm_segs,
183 int nseg, int error);
184
185 int
186 iir_init(struct gdt_softc *gdt)
187 {
188 u_int16_t cdev_cnt;
189 int i, id, drv_cyls, drv_hds, drv_secs;
190 struct gdt_ccb *gccb;
191
192 GDT_DPRINTF(GDT_D_DEBUG, ("iir_init()\n"));
193
194 gdt->sc_state = GDT_POLLING;
195 gdt_clear_events();
196 bzero(&gdt_stat, sizeof(gdt_statist_t));
197
198 SLIST_INIT(&gdt->sc_free_gccb);
199 SLIST_INIT(&gdt->sc_pending_gccb);
200 TAILQ_INIT(&gdt->sc_ccb_queue);
201 TAILQ_INIT(&gdt->sc_ucmd_queue);
202 TAILQ_INSERT_TAIL(&gdt_softcs, gdt, links);
203
204 /* DMA tag for mapping buffers into device visible space. */
205 if (bus_dma_tag_create(gdt->sc_parent_dmat, /*alignment*/1, /*boundary*/0,
206 /*lowaddr*/BUS_SPACE_MAXADDR,
207 /*highaddr*/BUS_SPACE_MAXADDR,
208 /*filter*/NULL, /*filterarg*/NULL,
209 /*maxsize*/MAXBSIZE, /*nsegments*/GDT_MAXSG,
210 /*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT,
211 /*flags*/BUS_DMA_ALLOCNOW,
212 &gdt->sc_buffer_dmat) != 0) {
213 kprintf("iir%d: bus_dma_tag_create(...,gdt->sc_buffer_dmat) failed\n",
214 gdt->sc_hanum);
215 return (1);
216 }
217 gdt->sc_init_level++;
218
219 /* DMA tag for our ccb structures */
220 if (bus_dma_tag_create(gdt->sc_parent_dmat, /*alignment*/1, /*boundary*/0,
221 /*lowaddr*/BUS_SPACE_MAXADDR,
222 /*highaddr*/BUS_SPACE_MAXADDR,
223 /*filter*/NULL, /*filterarg*/NULL,
224 GDT_MAXCMDS * sizeof(struct gdt_ccb),
225 /*nsegments*/1,
226 /*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT,
227 /*flags*/0, &gdt->sc_gccb_dmat) != 0) {
228 kprintf("iir%d: bus_dma_tag_create(...,gdt->sc_gccb_dmat) failed\n",
229 gdt->sc_hanum);
230 return (1);
231 }
232 gdt->sc_init_level++;
233
234 /* Allocation for our ccbs */
235 if (bus_dmamem_alloc(gdt->sc_gccb_dmat, (void **)&gdt->sc_gccbs,
236 BUS_DMA_NOWAIT, &gdt->sc_gccb_dmamap) != 0) {
237 kprintf("iir%d: bus_dmamem_alloc(...,&gdt->sc_gccbs,...) failed\n",
238 gdt->sc_hanum);
239 return (1);
240 }
241 gdt->sc_init_level++;
242
243 /* And permanently map them */
244 bus_dmamap_load(gdt->sc_gccb_dmat, gdt->sc_gccb_dmamap,
245 gdt->sc_gccbs, GDT_MAXCMDS * sizeof(struct gdt_ccb),
246 gdtmapmem, &gdt->sc_gccb_busbase, /*flags*/0);
247 gdt->sc_init_level++;
248
249 /* Clear them out. */
250 bzero(gdt->sc_gccbs, GDT_MAXCMDS * sizeof(struct gdt_ccb));
251
252 /* Initialize the ccbs */
253 for (i = GDT_MAXCMDS-1; i >= 0; i--) {
254 gdt->sc_gccbs[i].gc_cmd_index = i + 2;
255 gdt->sc_gccbs[i].gc_flags = GDT_GCF_UNUSED;
256 gdt->sc_gccbs[i].gc_map_flag = FALSE;
257 if (bus_dmamap_create(gdt->sc_buffer_dmat, /*flags*/0,
258 &gdt->sc_gccbs[i].gc_dmamap) != 0)
259 return(1);
260 gdt->sc_gccbs[i].gc_map_flag = TRUE;
261 SLIST_INSERT_HEAD(&gdt->sc_free_gccb, &gdt->sc_gccbs[i], sle);
262 }
263 gdt->sc_init_level++;
264
265 /* create the control device */
266 gdt->sc_dev = gdt_make_dev(gdt->sc_hanum);
267
268 /* allocate ccb for gdt_internal_cmd() */
269 gccb = gdt_get_ccb(gdt);
270 if (gccb == NULL) {
271 kprintf("iir%d: No free command index found\n",
272 gdt->sc_hanum);
273 return (1);
274 }
275
276 if (!gdt_internal_cmd(gdt, gccb, GDT_SCREENSERVICE, GDT_INIT,
277 0, 0, 0)) {
278 kprintf("iir%d: Screen service initialization error %d\n",
279 gdt->sc_hanum, gdt->sc_status);
280 gdt_free_ccb(gdt, gccb);
281 return (1);
282 }
283
284 if (!gdt_internal_cmd(gdt, gccb, GDT_CACHESERVICE, GDT_INIT,
285 GDT_LINUX_OS, 0, 0)) {
286 kprintf("iir%d: Cache service initialization error %d\n",
287 gdt->sc_hanum, gdt->sc_status);
288 gdt_free_ccb(gdt, gccb);
289 return (1);
290 }
291 gdt_internal_cmd(gdt, gccb, GDT_CACHESERVICE, GDT_UNFREEZE_IO,
292 0, 0, 0);
293
294 if (!gdt_internal_cmd(gdt, gccb, GDT_CACHESERVICE, GDT_MOUNT,
295 0xffff, 1, 0)) {
296 kprintf("iir%d: Cache service mount error %d\n",
297 gdt->sc_hanum, gdt->sc_status);
298 gdt_free_ccb(gdt, gccb);
299 return (1);
300 }
301
302 if (!gdt_internal_cmd(gdt, gccb, GDT_CACHESERVICE, GDT_INIT,
303 GDT_LINUX_OS, 0, 0)) {
304 kprintf("iir%d: Cache service post-mount initialization error %d\n",
305 gdt->sc_hanum, gdt->sc_status);
306 gdt_free_ccb(gdt, gccb);
307 return (1);
308 }
309 cdev_cnt = (u_int16_t)gdt->sc_info;
310 gdt->sc_fw_vers = gdt->sc_service;
311
312 /* Detect number of buses */
313 gdt_enc32(gccb->gc_scratch + GDT_IOC_VERSION, GDT_IOC_NEWEST);
314 gccb->gc_scratch[GDT_IOC_LIST_ENTRIES] = GDT_MAXBUS;
315 gccb->gc_scratch[GDT_IOC_FIRST_CHAN] = 0;
316 gccb->gc_scratch[GDT_IOC_LAST_CHAN] = GDT_MAXBUS - 1;
317 gdt_enc32(gccb->gc_scratch + GDT_IOC_LIST_OFFSET, GDT_IOC_HDR_SZ);
318 if (gdt_internal_cmd(gdt, gccb, GDT_CACHESERVICE, GDT_IOCTL,
319 GDT_IOCHAN_RAW_DESC, GDT_INVALID_CHANNEL,
320 GDT_IOC_HDR_SZ + GDT_MAXBUS * GDT_RAWIOC_SZ)) {
321 gdt->sc_bus_cnt = gccb->gc_scratch[GDT_IOC_CHAN_COUNT];
322 for (i = 0; i < gdt->sc_bus_cnt; i++) {
323 id = gccb->gc_scratch[GDT_IOC_HDR_SZ +
324 i * GDT_RAWIOC_SZ + GDT_RAWIOC_PROC_ID];
325 gdt->sc_bus_id[i] = id < GDT_MAXID_FC ? id : 0xff;
326 }
327 } else {
328 /* New method failed, use fallback. */
329 for (i = 0; i < GDT_MAXBUS; i++) {
330 gdt_enc32(gccb->gc_scratch + GDT_GETCH_CHANNEL_NO, i);
331 if (!gdt_internal_cmd(gdt, gccb, GDT_CACHESERVICE, GDT_IOCTL,
332 GDT_SCSI_CHAN_CNT | GDT_L_CTRL_PATTERN,
333 GDT_IO_CHANNEL | GDT_INVALID_CHANNEL,
334 GDT_GETCH_SZ)) {
335 if (i == 0) {
336 kprintf("iir%d: Cannot get channel count, "
337 "error %d\n", gdt->sc_hanum, gdt->sc_status);
338 gdt_free_ccb(gdt, gccb);
339 return (1);
340 }
341 break;
342 }
343 gdt->sc_bus_id[i] =
344 (gccb->gc_scratch[GDT_GETCH_SIOP_ID] < GDT_MAXID_FC) ?
345 gccb->gc_scratch[GDT_GETCH_SIOP_ID] : 0xff;
346 }
347 gdt->sc_bus_cnt = i;
348 }
349 /* add one "virtual" channel for the host drives */
350 gdt->sc_virt_bus = gdt->sc_bus_cnt;
351 gdt->sc_bus_cnt++;
352
353 if (!gdt_internal_cmd(gdt, gccb, GDT_SCSIRAWSERVICE, GDT_INIT,
354 0, 0, 0)) {
355 kprintf("iir%d: Raw service initialization error %d\n",
356 gdt->sc_hanum, gdt->sc_status);
357 gdt_free_ccb(gdt, gccb);
358 return (1);
359 }
360
361 /* Set/get features raw service (scatter/gather) */
362 gdt->sc_raw_feat = 0;
363 if (gdt_internal_cmd(gdt, gccb, GDT_SCSIRAWSERVICE, GDT_SET_FEAT,
364 GDT_SCATTER_GATHER, 0, 0)) {
365 if (gdt_internal_cmd(gdt, gccb, GDT_SCSIRAWSERVICE, GDT_GET_FEAT,
366 0, 0, 0)) {
367 gdt->sc_raw_feat = gdt->sc_info;
368 if (!(gdt->sc_info & GDT_SCATTER_GATHER)) {
369 panic("iir%d: Scatter/Gather Raw Service "
370 "required but not supported!\n", gdt->sc_hanum);
371 gdt_free_ccb(gdt, gccb);
372 return (1);
373 }
374 }
375 }
376
377 /* Set/get features cache service (scatter/gather) */
378 gdt->sc_cache_feat = 0;
379 if (gdt_internal_cmd(gdt, gccb, GDT_CACHESERVICE, GDT_SET_FEAT,
380 0, GDT_SCATTER_GATHER, 0)) {
381 if (gdt_internal_cmd(gdt, gccb, GDT_CACHESERVICE, GDT_GET_FEAT,
382 0, 0, 0)) {
383 gdt->sc_cache_feat = gdt->sc_info;
384 if (!(gdt->sc_info & GDT_SCATTER_GATHER)) {
385 panic("iir%d: Scatter/Gather Cache Service "
386 "required but not supported!\n", gdt->sc_hanum);
387 gdt_free_ccb(gdt, gccb);
388 return (1);
389 }
390 }
391 }
392
393 /* Scan for cache devices */
394 for (i = 0; i < cdev_cnt && i < GDT_MAX_HDRIVES; i++) {
395 if (gdt_internal_cmd(gdt, gccb, GDT_CACHESERVICE, GDT_INFO,
396 i, 0, 0)) {
397 gdt->sc_hdr[i].hd_present = 1;
398 gdt->sc_hdr[i].hd_size = gdt->sc_info;
399
400 /*
401 * Evaluate mapping (sectors per head, heads per cyl)
402 */
403 gdt->sc_hdr[i].hd_size &= ~GDT_SECS32;
404 if (gdt->sc_info2 == 0)
405 gdt_eval_mapping(gdt->sc_hdr[i].hd_size,
406 &drv_cyls, &drv_hds, &drv_secs);
407 else {
408 drv_hds = gdt->sc_info2 & 0xff;
409 drv_secs = (gdt->sc_info2 >> 8) & 0xff;
410 drv_cyls = gdt->sc_hdr[i].hd_size / drv_hds /
411 drv_secs;
412 }
413 gdt->sc_hdr[i].hd_heads = drv_hds;
414 gdt->sc_hdr[i].hd_secs = drv_secs;
415 /* Round the size */
416 gdt->sc_hdr[i].hd_size = drv_cyls * drv_hds * drv_secs;
417
418 if (gdt_internal_cmd(gdt, gccb, GDT_CACHESERVICE,
419 GDT_DEVTYPE, i, 0, 0))
420 gdt->sc_hdr[i].hd_devtype = gdt->sc_info;
421 }
422 }
423
424 GDT_DPRINTF(GDT_D_INIT, ("dpmem %x %d-bus %d cache device%s\n",
425 gdt->sc_dpmembase,
426 gdt->sc_bus_cnt, cdev_cnt,
427 cdev_cnt == 1 ? "" : "s"));
428 gdt_free_ccb(gdt, gccb);
429
430 gdt_cnt++;
431 return (0);
432 }
433
434 void
435 iir_free(struct gdt_softc *gdt)
436 {
437 int i;
438
439 GDT_DPRINTF(GDT_D_INIT, ("iir_free()\n"));
440
441 switch (gdt->sc_init_level) {
442 default:
443 gdt_destroy_dev(gdt->sc_dev);
444 case 5:
445 for (i = GDT_MAXCMDS-1; i >= 0; i--)
446 if (gdt->sc_gccbs[i].gc_map_flag)
447 bus_dmamap_destroy(gdt->sc_buffer_dmat,
448 gdt->sc_gccbs[i].gc_dmamap);
449 bus_dmamap_unload(gdt->sc_gccb_dmat, gdt->sc_gccb_dmamap);
450 case 4:
451 bus_dmamem_free(gdt->sc_gccb_dmat, gdt->sc_gccbs, gdt->sc_gccb_dmamap);
452 case 3:
453 bus_dma_tag_destroy(gdt->sc_gccb_dmat);
454 case 2:
455 bus_dma_tag_destroy(gdt->sc_buffer_dmat);
456 case 1:
457 bus_dma_tag_destroy(gdt->sc_parent_dmat);
458 case 0:
459 break;
460 }
461 TAILQ_REMOVE(&gdt_softcs, gdt, links);
462 }
463
464 void
465 iir_attach(struct gdt_softc *gdt)
466 {
467 struct cam_devq *devq;
468 int i;
469
470 GDT_DPRINTF(GDT_D_INIT, ("iir_attach()\n"));
471
472 callout_init(&gdt->watchdog_timer);
473 /*
474 * Create the device queue for our SIM.
475 */
476 devq = cam_simq_alloc(GDT_MAXCMDS);
477 if (devq == NULL)
478 return;
479
480 for (i = 0; i < gdt->sc_bus_cnt; i++) {
481 /*
482 * Construct our SIM entry
483 */
484 gdt->sims[i] = cam_sim_alloc(iir_action, iir_poll, "iir",
485 gdt, gdt->sc_hanum, &sim_mplock,
486 /*untagged*/2,
487 /*tagged*/GDT_MAXCMDS, devq);
488 if (xpt_bus_register(gdt->sims[i], i) != CAM_SUCCESS) {
489 cam_sim_free(gdt->sims[i]);
490 break;
491 }
492
493 if (xpt_create_path(&gdt->paths[i], /*periph*/NULL,
494 cam_sim_path(gdt->sims[i]),
495 CAM_TARGET_WILDCARD,
496 CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
497 xpt_bus_deregister(cam_sim_path(gdt->sims[i]));
498 cam_sim_free(gdt->sims[i]);
499 break;
500 }
501 }
502 cam_simq_release(devq);
503 if (i > 0)
504 EVENTHANDLER_REGISTER(shutdown_post_sync, iir_shutdown,
505 gdt, SHUTDOWN_PRI_DRIVER);
506 /* iir_watchdog(gdt); */
507 gdt->sc_state = GDT_NORMAL;
508 }
509
510 static void
511 gdt_eval_mapping(u_int32_t size, int *cyls, int *heads, int *secs)
512 {
513 *cyls = size / GDT_HEADS / GDT_SECS;
514 if (*cyls < GDT_MAXCYLS) {
515 *heads = GDT_HEADS;
516 *secs = GDT_SECS;
517 } else {
518 /* Too high for 64 * 32 */
519 *cyls = size / GDT_MEDHEADS / GDT_MEDSECS;
520 if (*cyls < GDT_MAXCYLS) {
521 *heads = GDT_MEDHEADS;
522 *secs = GDT_MEDSECS;
523 } else {
524 /* Too high for 127 * 63 */
525 *cyls = size / GDT_BIGHEADS / GDT_BIGSECS;
526 *heads = GDT_BIGHEADS;
527 *secs = GDT_BIGSECS;
528 }
529 }
530 }
531
532 static int
533 gdt_wait(struct gdt_softc *gdt, struct gdt_ccb *gccb,
534 int timeout)
535 {
536 int rv = 0;
537
538 GDT_DPRINTF(GDT_D_INIT,
539 ("gdt_wait(%p, %p, %d)\n", gdt, gccb, timeout));
540
541 gdt->sc_state |= GDT_POLL_WAIT;
542 do {
543 iir_intr(gdt);
544 if (gdt == gdt_wait_gdt &&
545 gccb->gc_cmd_index == gdt_wait_index) {
546 rv = 1;
547 break;
548 }
549 DELAY(1);
550 } while (--timeout);
551 gdt->sc_state &= ~GDT_POLL_WAIT;
552
553 while (gdt->sc_test_busy(gdt))
554 DELAY(1); /* XXX correct? */
555
556 return (rv);
557 }
558
559 static int
560 gdt_internal_cmd(struct gdt_softc *gdt, struct gdt_ccb *gccb,
561 u_int8_t service, u_int16_t opcode,
562 u_int32_t arg1, u_int32_t arg2, u_int32_t arg3)
563 {
564 int retries;
565
566 GDT_DPRINTF(GDT_D_CMD, ("gdt_internal_cmd(%p, %d, %d, %d, %d, %d)\n",
567 gdt, service, opcode, arg1, arg2, arg3));
568
569 bzero(gdt->sc_cmd, GDT_CMD_SZ);
570
571 for (retries = GDT_RETRIES; ; ) {
572 gccb->gc_service = service;
573 gccb->gc_flags = GDT_GCF_INTERNAL;
574
575 gdt->sc_set_sema0(gdt);
576 gdt_enc32(gdt->sc_cmd + GDT_CMD_COMMANDINDEX,
577 gccb->gc_cmd_index);
578 gdt_enc16(gdt->sc_cmd + GDT_CMD_OPCODE, opcode);
579
580 switch (service) {
581 case GDT_CACHESERVICE:
582 if (opcode == GDT_IOCTL) {
583 gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION +
584 GDT_IOCTL_SUBFUNC, arg1);
585 gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION +
586 GDT_IOCTL_CHANNEL, arg2);
587 gdt_enc16(gdt->sc_cmd + GDT_CMD_UNION +
588 GDT_IOCTL_PARAM_SIZE, (u_int16_t)arg3);
589 gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_IOCTL_P_PARAM,
590 gdt_ccb_vtop(gdt, gccb) +
591 offsetof(struct gdt_ccb, gc_scratch[0]));
592 } else {
593 gdt_enc16(gdt->sc_cmd + GDT_CMD_UNION +
594 GDT_CACHE_DEVICENO, (u_int16_t)arg1);
595 gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION +
596 GDT_CACHE_BLOCKNO, arg2);
597 }
598 break;
599
600 case GDT_SCSIRAWSERVICE:
601 gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION +
602 GDT_RAW_DIRECTION, arg1);
603 gdt->sc_cmd[GDT_CMD_UNION + GDT_RAW_BUS] =
604 (u_int8_t)arg2;
605 gdt->sc_cmd[GDT_CMD_UNION + GDT_RAW_TARGET] =
606 (u_int8_t)arg3;
607 gdt->sc_cmd[GDT_CMD_UNION + GDT_RAW_LUN] =
608 (u_int8_t)(arg3 >> 8);
609 }
610
611 gdt->sc_cmd_len = GDT_CMD_SZ;
612 gdt->sc_cmd_off = 0;
613 gdt->sc_cmd_cnt = 0;
614 gdt->sc_copy_cmd(gdt, gccb);
615 gdt->sc_release_event(gdt);
616 DELAY(20);
617 if (!gdt_wait(gdt, gccb, GDT_POLL_TIMEOUT))
618 return (0);
619 if (gdt->sc_status != GDT_S_BSY || --retries == 0)
620 break;
621 DELAY(1);
622 }
623 return (gdt->sc_status == GDT_S_OK);
624 }
625
626 static struct gdt_ccb *
627 gdt_get_ccb(struct gdt_softc *gdt)
628 {
629 struct gdt_ccb *gccb;
630
631 GDT_DPRINTF(GDT_D_QUEUE, ("gdt_get_ccb(%p)\n", gdt));
632
633 crit_enter();
634 gccb = SLIST_FIRST(&gdt->sc_free_gccb);
635 if (gccb != NULL) {
636 SLIST_REMOVE_HEAD(&gdt->sc_free_gccb, sle);
637 SLIST_INSERT_HEAD(&gdt->sc_pending_gccb, gccb, sle);
638 ++gdt_stat.cmd_index_act;
639 if (gdt_stat.cmd_index_act > gdt_stat.cmd_index_max)
640 gdt_stat.cmd_index_max = gdt_stat.cmd_index_act;
641 }
642 crit_exit();
643 return (gccb);
644 }
645
646 void
647 gdt_free_ccb(struct gdt_softc *gdt, struct gdt_ccb *gccb)
648 {
649 GDT_DPRINTF(GDT_D_QUEUE, ("gdt_free_ccb(%p, %p)\n", gdt, gccb));
650
651 crit_enter();
652 gccb->gc_flags = GDT_GCF_UNUSED;
653 SLIST_REMOVE(&gdt->sc_pending_gccb, gccb, gdt_ccb, sle);
654 SLIST_INSERT_HEAD(&gdt->sc_free_gccb, gccb, sle);
655 --gdt_stat.cmd_index_act;
656 crit_exit();
657 if (gdt->sc_state & GDT_SHUTDOWN)
658 wakeup(gccb);
659 }
660
661 static u_int32_t
662 gdt_ccb_vtop(struct gdt_softc *gdt, struct gdt_ccb *gccb)
663 {
664 return (gdt->sc_gccb_busbase
665 + (u_int32_t)((caddr_t)gccb - (caddr_t)gdt->sc_gccbs));
666 }
667
668 void
669 gdt_next(struct gdt_softc *gdt)
670 {
671 union ccb *ccb;
672 gdt_ucmd_t *ucmd;
673 struct cam_sim *sim;
674 int bus, target, lun;
675 int next_cmd;
676
677 struct ccb_scsiio *csio;
678 struct ccb_hdr *ccbh;
679 struct gdt_ccb *gccb = NULL;
680 u_int8_t cmd;
681
682 GDT_DPRINTF(GDT_D_QUEUE, ("gdt_next(%p)\n", gdt));
683
684 crit_enter();
685 if (gdt->sc_test_busy(gdt)) {
686 if (!(gdt->sc_state & GDT_POLLING)) {
687 crit_exit();
688 return;
689 }
690 while (gdt->sc_test_busy(gdt))
691 DELAY(1);
692 }
693
694 gdt->sc_cmd_cnt = gdt->sc_cmd_off = 0;
695 next_cmd = TRUE;
696 for (;;) {
697 /* I/Os in queue? controller ready? */
698 if (!TAILQ_FIRST(&gdt->sc_ucmd_queue) &&
699 !TAILQ_FIRST(&gdt->sc_ccb_queue))
700 break;
701
702 /* 1.: I/Os without ccb (IOCTLs) */
703 ucmd = TAILQ_FIRST(&gdt->sc_ucmd_queue);
704 if (ucmd != NULL) {
705 TAILQ_REMOVE(&gdt->sc_ucmd_queue, ucmd, links);
706 if ((gccb = gdt_ioctl_cmd(gdt, ucmd)) == NULL) {
707 TAILQ_INSERT_HEAD(&gdt->sc_ucmd_queue, ucmd, links);
708 break;
709 }
710 break;
711 /* wenn mehrere Kdos. zulassen: if (!gdt_polling) continue; */
712 }
713
714 /* 2.: I/Os with ccb */
715 ccb = (union ccb *)TAILQ_FIRST(&gdt->sc_ccb_queue);
716 /* ist dann immer != NULL, da oben getestet */
717 sim = (struct cam_sim *)ccb->ccb_h.ccb_sim_ptr;
718 bus = cam_sim_bus(sim);
719 target = ccb->ccb_h.target_id;
720 lun = ccb->ccb_h.target_lun;
721
722 TAILQ_REMOVE(&gdt->sc_ccb_queue, &ccb->ccb_h, sim_links.tqe);
723 --gdt_stat.req_queue_act;
724 /* ccb->ccb_h.func_code is XPT_SCSI_IO */
725 GDT_DPRINTF(GDT_D_QUEUE, ("XPT_SCSI_IO flags 0x%x)\n",
726 ccb->ccb_h.flags));
727 csio = &ccb->csio;
728 ccbh = &ccb->ccb_h;
729 cmd = csio->cdb_io.cdb_bytes[0];
730 /* Max CDB length is 12 bytes */
731 if (csio->cdb_len > 12) {
732 ccbh->status = CAM_REQ_INVALID;
733 --gdt_stat.io_count_act;
734 xpt_done(ccb);
735 } else if (bus != gdt->sc_virt_bus) {
736 /* raw service command */
737 if ((gccb = gdt_raw_cmd(gdt, ccb)) == NULL) {
738 TAILQ_INSERT_HEAD(&gdt->sc_ccb_queue, &ccb->ccb_h,
739 sim_links.tqe);
740 ++gdt_stat.req_queue_act;
741 if (gdt_stat.req_queue_act > gdt_stat.req_queue_max)
742 gdt_stat.req_queue_max = gdt_stat.req_queue_act;
743 next_cmd = FALSE;
744 }
745 } else if (target >= GDT_MAX_HDRIVES ||
746 !gdt->sc_hdr[target].hd_present || lun != 0) {
747 ccbh->status = CAM_SEL_TIMEOUT;
748 --gdt_stat.io_count_act;
749 xpt_done(ccb);
750 } else {
751 /* cache service command */
752 if (cmd == READ_6 || cmd == WRITE_6 ||
753 cmd == READ_10 || cmd == WRITE_10) {
754 if ((gccb = gdt_cache_cmd(gdt, ccb)) == NULL) {
755 TAILQ_INSERT_HEAD(&gdt->sc_ccb_queue, &ccb->ccb_h,
756 sim_links.tqe);
757 ++gdt_stat.req_queue_act;
758 if (gdt_stat.req_queue_act > gdt_stat.req_queue_max)
759 gdt_stat.req_queue_max = gdt_stat.req_queue_act;
760 next_cmd = FALSE;
761 }
762 } else {
763 crit_exit();
764 gdt_internal_cache_cmd(gdt, ccb);
765 crit_enter();
766 }
767 }
768 if ((gdt->sc_state & GDT_POLLING) || !next_cmd)
769 break;
770 }
771 if (gdt->sc_cmd_cnt > 0)
772 gdt->sc_release_event(gdt);
773
774 crit_exit();
775
776 if ((gdt->sc_state & GDT_POLLING) && gdt->sc_cmd_cnt > 0) {
777 gdt_wait(gdt, gccb, GDT_POLL_TIMEOUT);
778 }
779 }
780
781 static struct gdt_ccb *
782 gdt_raw_cmd(struct gdt_softc *gdt, union ccb *ccb)
783 {
784 struct gdt_ccb *gccb;
785 struct cam_sim *sim;
786
787 GDT_DPRINTF(GDT_D_CMD, ("gdt_raw_cmd(%p, %p)\n", gdt, ccb));
788
789 if (roundup(GDT_CMD_UNION + GDT_RAW_SZ, sizeof(u_int32_t)) +
790 gdt->sc_cmd_off + GDT_DPMEM_COMMAND_OFFSET >
791 gdt->sc_ic_all_size) {
792 GDT_DPRINTF(GDT_D_INVALID, ("iir%d: gdt_raw_cmd(): DPMEM overflow\n",
793 gdt->sc_hanum));
794 return (NULL);
795 }
796
797 bzero(gdt->sc_cmd, GDT_CMD_SZ);
798
799 gccb = gdt_get_ccb(gdt);
800 if (gccb == NULL) {
801 GDT_DPRINTF(GDT_D_INVALID, ("iir%d: No free command index found\n",
802 gdt->sc_hanum));
803 return (gccb);
804 }
805 sim = (struct cam_sim *)ccb->ccb_h.ccb_sim_ptr;
806 gccb->gc_ccb = ccb;
807 gccb->gc_service = GDT_SCSIRAWSERVICE;
808 gccb->gc_flags = GDT_GCF_SCSI;
809
810 if (gdt->sc_cmd_cnt == 0)
811 gdt->sc_set_sema0(gdt);
812 crit_exit();
813 gdt_enc32(gdt->sc_cmd + GDT_CMD_COMMANDINDEX,
814 gccb->gc_cmd_index);
815 gdt_enc16(gdt->sc_cmd + GDT_CMD_OPCODE, GDT_WRITE);
816
817 gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_DIRECTION,
818 (ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN ?
819 GDT_DATA_IN : GDT_DATA_OUT);
820 gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_SDLEN,
821 ccb->csio.dxfer_len);
822 gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_CLEN,
823 ccb->csio.cdb_len);
824 bcopy(ccb->csio.cdb_io.cdb_bytes, gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_CMD,
825 ccb->csio.cdb_len);
826 gdt->sc_cmd[GDT_CMD_UNION + GDT_RAW_TARGET] =
827 ccb->ccb_h.target_id;
828 gdt->sc_cmd[GDT_CMD_UNION + GDT_RAW_LUN] =
829 ccb->ccb_h.target_lun;
830 gdt->sc_cmd[GDT_CMD_UNION + GDT_RAW_BUS] =
831 cam_sim_bus(sim);
832 gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_SENSE_LEN,
833 sizeof(struct scsi_sense_data));
834 gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_SENSE_DATA,
835 gdt_ccb_vtop(gdt, gccb) +
836 offsetof(struct gdt_ccb, gc_scratch[0]));
837
838 /*
839 * If we have any data to send with this command,
840 * map it into bus space.
841 */
842 /* Only use S/G if there is a transfer */
843 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
844 if ((ccb->ccb_h.flags & CAM_SCATTER_VALID) == 0) {
845 if ((ccb->ccb_h.flags & CAM_DATA_PHYS) == 0) {
846 int error;
847
848 /* vorher unlock von splcam() ??? */
849 crit_enter();
850 error =
851 bus_dmamap_load(gdt->sc_buffer_dmat,
852 gccb->gc_dmamap,
853 ccb->csio.data_ptr,
854 ccb->csio.dxfer_len,
855 gdtexecuteccb,
856 gccb, /*flags*/0);
857 if (error == EINPROGRESS) {
858 xpt_freeze_simq(sim, 1);
859 gccb->gc_state |= CAM_RELEASE_SIMQ;
860 }
861 crit_exit();
862 } else {
863 struct bus_dma_segment seg;
864
865 /* Pointer to physical buffer */
866 seg.ds_addr =
867 (bus_addr_t)ccb->csio.data_ptr;
868 seg.ds_len = ccb->csio.dxfer_len;
869 gdtexecuteccb(gccb, &seg, 1, 0);
870 }
871 } else {
872 struct bus_dma_segment *segs;
873
874 if ((ccb->ccb_h.flags & CAM_DATA_PHYS) != 0)
875 panic("iir%d: iir_action - Physical "
876 "segment pointers unsupported", gdt->sc_hanum);
877
878 if ((ccb->ccb_h.flags & CAM_SG_LIST_PHYS)==0)
879 panic("iir%d: iir_action - Virtual "
880 "segment addresses unsupported", gdt->sc_hanum);
881
882 /* Just use the segments provided */
883 segs = (struct bus_dma_segment *)ccb->csio.data_ptr;
884 gdtexecuteccb(gccb, segs, ccb->csio.sglist_cnt, 0);
885 }
886 } else {
887 gdtexecuteccb(gccb, NULL, 0, 0);
888 }
889
890 crit_enter();
891 return (gccb);
892 }
893
894 static struct gdt_ccb *
895 gdt_cache_cmd(struct gdt_softc *gdt, union ccb *ccb)
896 {
897 struct gdt_ccb *gccb;
898 struct cam_sim *sim;
899 u_int8_t *cmdp;
900 u_int16_t opcode;
901 u_int32_t blockno, blockcnt;
902
903 GDT_DPRINTF(GDT_D_CMD, ("gdt_cache_cmd(%p, %p)\n", gdt, ccb));
904
905 if (roundup(GDT_CMD_UNION + GDT_CACHE_SZ, sizeof(u_int32_t)) +
906 gdt->sc_cmd_off + GDT_DPMEM_COMMAND_OFFSET >
907 gdt->sc_ic_all_size) {
908 GDT_DPRINTF(GDT_D_INVALID, ("iir%d: gdt_cache_cmd(): DPMEM overflow\n",
909 gdt->sc_hanum));
910 return (NULL);
911 }
912
913 bzero(gdt->sc_cmd, GDT_CMD_SZ);
914
915 gccb = gdt_get_ccb(gdt);
916 if (gccb == NULL) {
917 GDT_DPRINTF(GDT_D_DEBUG, ("iir%d: No free command index found\n",
918 gdt->sc_hanum));
919 return (gccb);
920 }
921 sim = (struct cam_sim *)ccb->ccb_h.ccb_sim_ptr;
922 gccb->gc_ccb = ccb;
923 gccb->gc_service = GDT_CACHESERVICE;
924 gccb->gc_flags = GDT_GCF_SCSI;
925
926 if (gdt->sc_cmd_cnt == 0)
927 gdt->sc_set_sema0(gdt);
928 crit_exit();
929 gdt_enc32(gdt->sc_cmd + GDT_CMD_COMMANDINDEX,
930 gccb->gc_cmd_index);
931 cmdp = ccb->csio.cdb_io.cdb_bytes;
932 opcode = (*cmdp == WRITE_6 || *cmdp == WRITE_10) ? GDT_WRITE : GDT_READ;
933 if ((gdt->sc_state & GDT_SHUTDOWN) && opcode == GDT_WRITE)
934 opcode = GDT_WRITE_THR;
935 gdt_enc16(gdt->sc_cmd + GDT_CMD_OPCODE, opcode);
936
937 gdt_enc16(gdt->sc_cmd + GDT_CMD_UNION + GDT_CACHE_DEVICENO,
938 ccb->ccb_h.target_id);
939 if (ccb->csio.cdb_len == 6) {
940 struct scsi_rw_6 *rw = (struct scsi_rw_6 *)cmdp;
941 blockno = scsi_3btoul(rw->addr) & ((SRW_TOPADDR<<16) | 0xffff);
942 blockcnt = rw->length ? rw->length : 0x100;
943 } else {
944 struct scsi_rw_10 *rw = (struct scsi_rw_10 *)cmdp;
945 blockno = scsi_4btoul(rw->addr);
946 blockcnt = scsi_2btoul(rw->length);
947 }
948 gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_CACHE_BLOCKNO,
949 blockno);
950 gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_CACHE_BLOCKCNT,
951 blockcnt);
952
953 /*
954 * If we have any data to send with this command,
955 * map it into bus space.
956 */
957 /* Only use S/G if there is a transfer */
958 if ((ccb->ccb_h.flags & CAM_SCATTER_VALID) == 0) {
959 if ((ccb->ccb_h.flags & CAM_DATA_PHYS) == 0) {
960 int error;
961
962 /* vorher unlock von splcam() ??? */
963 crit_enter();
964 error =
965 bus_dmamap_load(gdt->sc_buffer_dmat,
966 gccb->gc_dmamap,
967 ccb->csio.data_ptr,
968 ccb->csio.dxfer_len,
969 gdtexecuteccb,
970 gccb, /*flags*/0);
971 if (error == EINPROGRESS) {
972 xpt_freeze_simq(sim, 1);
973 gccb->gc_state |= CAM_RELEASE_SIMQ;
974 }
975 crit_exit();
976 } else {
977 struct bus_dma_segment seg;
978
979 /* Pointer to physical buffer */
980 seg.ds_addr =
981 (bus_addr_t)ccb->csio.data_ptr;
982 seg.ds_len = ccb->csio.dxfer_len;
983 gdtexecuteccb(gccb, &seg, 1, 0);
984 }
985 } else {
986 struct bus_dma_segment *segs;
987
988 if ((ccb->ccb_h.flags & CAM_DATA_PHYS) != 0)
989 panic("iir%d: iir_action - Physical "
990 "segment pointers unsupported", gdt->sc_hanum);
991
992 if ((ccb->ccb_h.flags & CAM_SG_LIST_PHYS)==0)
993 panic("iir%d: iir_action - Virtual "
994 "segment addresses unsupported", gdt->sc_hanum);
995
996 /* Just use the segments provided */
997 segs = (struct bus_dma_segment *)ccb->csio.data_ptr;
998 gdtexecuteccb(gccb, segs, ccb->csio.sglist_cnt, 0);
999 }
1000
1001 crit_enter();
1002 return (gccb);
1003 }
1004
1005 static struct gdt_ccb *
1006 gdt_ioctl_cmd(struct gdt_softc *gdt, gdt_ucmd_t *ucmd)
1007 {
1008 struct gdt_ccb *gccb;
1009 u_int32_t cnt;
1010
1011 GDT_DPRINTF(GDT_D_DEBUG, ("gdt_ioctl_cmd(%p, %p)\n", gdt, ucmd));
1012
1013 bzero(gdt->sc_cmd, GDT_CMD_SZ);
1014
1015 gccb = gdt_get_ccb(gdt);
1016 if (gccb == NULL) {
1017 GDT_DPRINTF(GDT_D_DEBUG, ("iir%d: No free command index found\n",
1018 gdt->sc_hanum));
1019 return (gccb);
1020 }
1021 gccb->gc_ucmd = ucmd;
1022 gccb->gc_service = ucmd->service;
1023 gccb->gc_flags = GDT_GCF_IOCTL;
1024
1025 /* check DPMEM space, copy data buffer from user space */
1026 if (ucmd->service == GDT_CACHESERVICE) {
1027 if (ucmd->OpCode == GDT_IOCTL) {
1028 gdt->sc_cmd_len = roundup(GDT_CMD_UNION + GDT_IOCTL_SZ,
1029 sizeof(u_int32_t));
1030 cnt = ucmd->u.ioctl.param_size;
1031 if (cnt > GDT_SCRATCH_SZ) {
1032 kprintf("iir%d: Scratch buffer too small (%d/%d)\n",
1033 gdt->sc_hanum, GDT_SCRATCH_SZ, cnt);
1034 gdt_free_ccb(gdt, gccb);
1035 return (NULL);
1036 }
1037 } else {
1038 gdt->sc_cmd_len = roundup(GDT_CMD_UNION + GDT_CACHE_SG_LST +
1039 GDT_SG_SZ, sizeof(u_int32_t));
1040 cnt = ucmd->u.cache.BlockCnt * GDT_SECTOR_SIZE;
1041 if (cnt > GDT_SCRATCH_SZ) {
1042 kprintf("iir%d: Scratch buffer too small (%d/%d)\n",
1043 gdt->sc_hanum, GDT_SCRATCH_SZ, cnt);
1044 gdt_free_ccb(gdt, gccb);
1045 return (NULL);
1046 }
1047 }
1048 } else {
1049 gdt->sc_cmd_len = roundup(GDT_CMD_UNION + GDT_RAW_SG_LST +
1050 GDT_SG_SZ, sizeof(u_int32_t));
1051 cnt = ucmd->u.raw.sdlen;
1052 if (cnt + ucmd->u.raw.sense_len > GDT_SCRATCH_SZ) {
1053 kprintf("iir%d: Scratch buffer too small (%d/%d)\n",
1054 gdt->sc_hanum, GDT_SCRATCH_SZ, cnt + ucmd->u.raw.sense_len);
1055 gdt_free_ccb(gdt, gccb);
1056 return (NULL);
1057 }
1058 }
1059 if (cnt != 0)
1060 bcopy(ucmd->data, gccb->gc_scratch, cnt);
1061
1062 if (gdt->sc_cmd_off + gdt->sc_cmd_len + GDT_DPMEM_COMMAND_OFFSET >
1063 gdt->sc_ic_all_size) {
1064 GDT_DPRINTF(GDT_D_INVALID, ("iir%d: gdt_ioctl_cmd(): DPMEM overflow\n",
1065 gdt->sc_hanum));
1066 gdt_free_ccb(gdt, gccb);
1067 return (NULL);
1068 }
1069
1070 if (gdt->sc_cmd_cnt == 0)
1071 gdt->sc_set_sema0(gdt);
1072 crit_exit();
1073
1074 /* fill cmd structure */
1075 gdt_enc32(gdt->sc_cmd + GDT_CMD_COMMANDINDEX,
1076 gccb->gc_cmd_index);
1077 gdt_enc16(gdt->sc_cmd + GDT_CMD_OPCODE,
1078 ucmd->OpCode);
1079
1080 if (ucmd->service == GDT_CACHESERVICE) {
1081 if (ucmd->OpCode == GDT_IOCTL) {
1082 /* IOCTL */
1083 gdt_enc16(gdt->sc_cmd + GDT_CMD_UNION + GDT_IOCTL_PARAM_SIZE,
1084 ucmd->u.ioctl.param_size);
1085 gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_IOCTL_SUBFUNC,
1086 ucmd->u.ioctl.subfunc);
1087 gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_IOCTL_CHANNEL,
1088 ucmd->u.ioctl.channel);
1089 gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_IOCTL_P_PARAM,
1090 gdt_ccb_vtop(gdt, gccb) +
1091 offsetof(struct gdt_ccb, gc_scratch[0]));
1092 } else {
1093 /* cache service command */
1094 gdt_enc16(gdt->sc_cmd + GDT_CMD_UNION + GDT_CACHE_DEVICENO,
1095 ucmd->u.cache.DeviceNo);
1096 gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_CACHE_BLOCKNO,
1097 ucmd->u.cache.BlockNo);
1098 gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_CACHE_BLOCKCNT,
1099 ucmd->u.cache.BlockCnt);
1100 gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_CACHE_DESTADDR,
1101 0xffffffffUL);
1102 gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_CACHE_SG_CANZ,
1103 1);
1104 gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_CACHE_SG_LST +
1105 GDT_SG_PTR, gdt_ccb_vtop(gdt, gccb) +
1106 offsetof(struct gdt_ccb, gc_scratch[0]));
1107 gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_CACHE_SG_LST +
1108 GDT_SG_LEN, ucmd->u.cache.BlockCnt * GDT_SECTOR_SIZE);
1109 }
1110 } else {
1111 /* raw service command */
1112 gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_DIRECTION,
1113 ucmd->u.raw.direction);
1114 gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_SDATA,
1115 0xffffffffUL);
1116 gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_SDLEN,
1117 ucmd->u.raw.sdlen);
1118 gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_CLEN,
1119 ucmd->u.raw.clen);
1120 bcopy(ucmd->u.raw.cmd, gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_CMD,
1121 12);
1122 gdt->sc_cmd[GDT_CMD_UNION + GDT_RAW_TARGET] =
1123 ucmd->u.raw.target;
1124 gdt->sc_cmd[GDT_CMD_UNION + GDT_RAW_LUN] =
1125 ucmd->u.raw.lun;
1126 gdt->sc_cmd[GDT_CMD_UNION + GDT_RAW_BUS] =
1127 ucmd->u.raw.bus;
1128 gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_SENSE_LEN,
1129 ucmd->u.raw.sense_len);
1130 gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_SENSE_DATA,
1131 gdt_ccb_vtop(gdt, gccb) +
1132 offsetof(struct gdt_ccb, gc_scratch[ucmd->u.raw.sdlen]));
1133 gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_SG_RANZ,
1134 1);
1135 gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_SG_LST +
1136 GDT_SG_PTR, gdt_ccb_vtop(gdt, gccb) +
1137 offsetof(struct gdt_ccb, gc_scratch[0]));
1138 gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_SG_LST +
1139 GDT_SG_LEN, ucmd->u.raw.sdlen);
1140 }
1141
1142 crit_enter();
1143 gdt_stat.sg_count_act = 1;
1144 gdt->sc_copy_cmd(gdt, gccb);
1145 return (gccb);
1146 }
1147
1148 static void
1149 gdt_internal_cache_cmd(struct gdt_softc *gdt,union ccb *ccb)
1150 {
1151 int t;
1152
1153 t = ccb->ccb_h.target_id;
1154 GDT_DPRINTF(GDT_D_CMD, ("gdt_internal_cache_cmd(%p, %p, 0x%x, %d)\n",
1155 gdt, ccb, ccb->csio.cdb_io.cdb_bytes[0], t));
1156
1157 switch (ccb->csio.cdb_io.cdb_bytes[0]) {
1158 case TEST_UNIT_READY:
1159 case START_STOP:
1160 break;
1161 case REQUEST_SENSE:
1162 GDT_DPRINTF(GDT_D_MISC, ("REQUEST_SENSE\n"));
1163 break;
1164 case INQUIRY:
1165 {
1166 struct scsi_inquiry_data *inq;
1167
1168 inq = (struct scsi_inquiry_data *)ccb->csio.data_ptr;
1169 bzero(inq, sizeof(struct scsi_inquiry_data));
1170 inq->device = (gdt->sc_hdr[t].hd_devtype & 4) ?
1171 T_CDROM : T_DIRECT;
1172 inq->dev_qual2 = (gdt->sc_hdr[t].hd_devtype & 1) ? 0x80 : 0;
1173 inq->version = SCSI_REV_2;
1174 inq->response_format = 2;
1175 inq->additional_length = 32;
1176 inq->flags = SID_CmdQue | SID_Sync;
1177 strcpy(inq->vendor, "IIR ");
1178 ksprintf(inq->product, "Host Drive #%02d", t);
1179 strcpy(inq->revision, " ");
1180 break;
1181 }
1182 case MODE_SENSE_6:
1183 {
1184 struct mpd_data {
1185 struct scsi_mode_hdr_6 hd;
1186 struct scsi_mode_block_descr bd;
1187 struct scsi_control_page cp;
1188 } *mpd;
1189 u_int8_t page;
1190
1191 mpd = (struct mpd_data *)ccb->csio.data_ptr;
1192 bzero(mpd, sizeof(struct mpd_data));
1193 mpd->hd.datalen = sizeof(struct scsi_mode_hdr_6) +
1194 sizeof(struct scsi_mode_block_descr);
1195 mpd->hd.dev_specific = (gdt->sc_hdr[t].hd_devtype & 2) ? 0x80 : 0;
1196 mpd->hd.block_descr_len = sizeof(struct scsi_mode_block_descr);
1197 mpd->bd.block_len[0] = (GDT_SECTOR_SIZE & 0x00ff0000) >> 16;
1198 mpd->bd.block_len[1] = (GDT_SECTOR_SIZE & 0x0000ff00) >> 8;
1199 mpd->bd.block_len[2] = (GDT_SECTOR_SIZE & 0x000000ff);
1200 page=((struct scsi_mode_sense_6 *)ccb->csio.cdb_io.cdb_bytes)->page;
1201 switch (page) {
1202 default:
1203 GDT_DPRINTF(GDT_D_MISC, ("MODE_SENSE_6: page 0x%x\n", page));
1204 break;
1205 }
1206 break;
1207 }
1208 case READ_CAPACITY:
1209 {
1210 struct scsi_read_capacity_data *rcd;
1211
1212 rcd = (struct scsi_read_capacity_data *)ccb->csio.data_ptr;
1213 bzero(rcd, sizeof(struct scsi_read_capacity_data));
1214 scsi_ulto4b(gdt->sc_hdr[t].hd_size - 1, rcd->addr);
1215 scsi_ulto4b(GDT_SECTOR_SIZE, rcd->length);
1216 break;
1217 }
1218 default:
1219 GDT_DPRINTF(GDT_D_MISC, ("gdt_internal_cache_cmd(%d) unknown\n",
1220 ccb->csio.cdb_io.cdb_bytes[0]));
1221 break;
1222 }
1223 ccb->ccb_h.status = CAM_REQ_CMP;
1224 --gdt_stat.io_count_act;
1225 xpt_done(ccb);
1226 }
1227
1228 static void
1229 gdtmapmem(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error)
1230 {
1231 bus_addr_t *busaddrp;
1232
1233 busaddrp = (bus_addr_t *)arg;
1234 *busaddrp = dm_segs->ds_addr;
1235 }
1236
1237 static void
1238 gdtexecuteccb(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error)
1239 {
1240 struct gdt_ccb *gccb;
1241 union ccb *ccb;
1242 struct gdt_softc *gdt;
1243 int i;
1244
1245 crit_enter();
1246
1247 gccb = (struct gdt_ccb *)arg;
1248 ccb = gccb->gc_ccb;
1249 gdt = cam_sim_softc((struct cam_sim *)ccb->ccb_h.ccb_sim_ptr);
1250
1251 GDT_DPRINTF(GDT_D_CMD, ("gdtexecuteccb(%p, %p, %p, %d, %d)\n",
1252 gdt, gccb, dm_segs, nseg, error));
1253 gdt_stat.sg_count_act = nseg;
1254 if (nseg > gdt_stat.sg_count_max)
1255 gdt_stat.sg_count_max = nseg;
1256
1257 /* Copy the segments into our SG list */
1258 if (gccb->gc_service == GDT_CACHESERVICE) {
1259 for (i = 0; i < nseg; ++i) {
1260 gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_CACHE_SG_LST +
1261 i * GDT_SG_SZ + GDT_SG_PTR, dm_segs->ds_addr);
1262 gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_CACHE_SG_LST +
1263 i * GDT_SG_SZ + GDT_SG_LEN, dm_segs->ds_len);
1264 dm_segs++;
1265 }
1266 gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_CACHE_SG_CANZ,
1267 nseg);
1268 gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_CACHE_DESTADDR,
1269 0xffffffffUL);
1270
1271 gdt->sc_cmd_len = roundup(GDT_CMD_UNION + GDT_CACHE_SG_LST +
1272 nseg * GDT_SG_SZ, sizeof(u_int32_t));
1273 } else {
1274 for (i = 0; i < nseg; ++i) {
1275 gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_SG_LST +
1276 i * GDT_SG_SZ + GDT_SG_PTR, dm_segs->ds_addr);
1277 gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_SG_LST +
1278 i * GDT_SG_SZ + GDT_SG_LEN, dm_segs->ds_len);
1279 dm_segs++;
1280 }
1281 gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_SG_RANZ,
1282 nseg);
1283 gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_SDATA,
1284 0xffffffffUL);
1285
1286 gdt->sc_cmd_len = roundup(GDT_CMD_UNION + GDT_RAW_SG_LST +
1287 nseg * GDT_SG_SZ, sizeof(u_int32_t));
1288 }
1289
1290 if (nseg != 0) {
1291 bus_dmasync_op_t op;
1292
1293 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
1294 op = BUS_DMASYNC_PREREAD;
1295 else
1296 op = BUS_DMASYNC_PREWRITE;
1297 bus_dmamap_sync(gdt->sc_buffer_dmat, gccb->gc_dmamap, op);
1298 }
1299
1300 /* We must NOT abort the command here if CAM_REQ_INPROG is not set,
1301 * because command semaphore is already set!
1302 */
1303
1304 ccb->ccb_h.status |= CAM_SIM_QUEUED;
1305 /* timeout handling */
1306 callout_reset(&ccb->ccb_h.timeout_ch, (ccb->ccb_h.timeout * hz) / 1000,
1307 iir_timeout, gccb);
1308
1309 gdt->sc_copy_cmd(gdt, gccb);
1310 crit_exit();
1311 }
1312
1313
1314 static void
1315 iir_action( struct cam_sim *sim, union ccb *ccb )
1316 {
1317 struct gdt_softc *gdt;
1318 int bus, target, lun;
1319
1320 gdt = (struct gdt_softc *)cam_sim_softc( sim );
1321 ccb->ccb_h.ccb_sim_ptr = sim;
1322 bus = cam_sim_bus(sim);
1323 target = ccb->ccb_h.target_id;
1324 lun = ccb->ccb_h.target_lun;
1325 GDT_DPRINTF(GDT_D_CMD,
1326 ("iir_action(%p) func 0x%x cmd 0x%x bus %d target %d lun %d\n",
1327 gdt, ccb->ccb_h.func_code, ccb->csio.cdb_io.cdb_bytes[0],
1328 bus, target, lun));
1329 ++gdt_stat.io_count_act;
1330 if (gdt_stat.io_count_act > gdt_stat.io_count_max)
1331 gdt_stat.io_count_max = gdt_stat.io_count_act;
1332
1333 switch (ccb->ccb_h.func_code) {
1334 case XPT_SCSI_IO:
1335 crit_enter();
1336 TAILQ_INSERT_TAIL(&gdt->sc_ccb_queue, &ccb->ccb_h, sim_links.tqe);
1337 ++gdt_stat.req_queue_act;
1338 if (gdt_stat.req_queue_act > gdt_stat.req_queue_max)
1339 gdt_stat.req_queue_max = gdt_stat.req_queue_act;
1340 crit_exit();
1341 gdt_next(gdt);
1342 break;
1343 case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */
1344 case XPT_ABORT: /* Abort the specified CCB */
1345 /* XXX Implement */
1346 ccb->ccb_h.status = CAM_REQ_INVALID;
1347 --gdt_stat.io_count_act;
1348 xpt_done(ccb);
1349 break;
1350 case XPT_SET_TRAN_SETTINGS:
1351 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
1352 --gdt_stat.io_count_act;
1353 xpt_done(ccb);
1354 break;
1355 case XPT_GET_TRAN_SETTINGS:
1356 /* Get default/user set transfer settings for the target */
1357 {
1358 struct ccb_trans_settings *cts = &ccb->cts;
1359 struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi;
1360 struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi;
1361
1362 cts->protocol = PROTO_SCSI;
1363 cts->protocol_version = SCSI_REV_2;
1364 cts->transport = XPORT_SPI;
1365 cts->transport_version = 2;
1366
1367 if (cts->type == CTS_TYPE_USER_SETTINGS) {
1368 spi->flags = CTS_SPI_FLAGS_DISC_ENB;
1369 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB;
1370 spi->bus_width = MSG_EXT_WDTR_BUS_16_BIT;
1371 spi->sync_period = 25; /* 10MHz */
1372 if (spi->sync_period != 0)
1373 spi->sync_offset = 15;
1374
1375 spi->valid = CTS_SPI_VALID_SYNC_RATE
1376 | CTS_SPI_VALID_SYNC_OFFSET
1377 | CTS_SPI_VALID_BUS_WIDTH
1378 | CTS_SPI_VALID_DISC;
1379 scsi->valid = CTS_SCSI_VALID_TQ;
1380 ccb->ccb_h.status = CAM_REQ_CMP;
1381 } else {
1382 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
1383 }
1384 --gdt_stat.io_count_act;
1385 xpt_done(ccb);
1386 break;
1387 }
1388 case XPT_CALC_GEOMETRY:
1389 {
1390 struct ccb_calc_geometry *ccg;
1391 u_int32_t secs_per_cylinder;
1392
1393 ccg = &ccb->ccg;
1394 ccg->heads = gdt->sc_hdr[target].hd_heads;
1395 ccg->secs_per_track = gdt->sc_hdr[target].hd_secs;
1396 secs_per_cylinder = ccg->heads * ccg->secs_per_track;
1397 ccg->cylinders = ccg->volume_size / secs_per_cylinder;
1398 ccb->ccb_h.status = CAM_REQ_CMP;
1399 --gdt_stat.io_count_act;
1400 xpt_done(ccb);
1401 break;
1402 }
1403 case XPT_RESET_BUS: /* Reset the specified SCSI bus */
1404 {
1405 /* XXX Implement */
1406 ccb->ccb_h.status = CAM_REQ_CMP;
1407 --gdt_stat.io_count_act;
1408 xpt_done(ccb);
1409 break;
1410 }
1411 case XPT_TERM_IO: /* Terminate the I/O process */
1412 /* XXX Implement */
1413 ccb->ccb_h.status = CAM_REQ_INVALID;
1414 --gdt_stat.io_count_act;
1415 xpt_done(ccb);
1416 break;
1417 case XPT_PATH_INQ: /* Path routing inquiry */
1418 {
1419 struct ccb_pathinq *cpi = &ccb->cpi;
1420
1421 cpi->version_num = 1;
1422 cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE;
1423 cpi->hba_inquiry |= PI_WIDE_16;
1424 cpi->target_sprt = 1;
1425 cpi->hba_misc = 0;
1426 cpi->hba_eng_cnt = 0;
1427 if (bus == gdt->sc_virt_bus)
1428 cpi->max_target = GDT_MAX_HDRIVES - 1;
1429 else if (gdt->sc_class & GDT_FC)
1430 cpi->max_target = GDT_MAXID_FC - 1;
1431 else
1432 cpi->max_target = GDT_MAXID - 1;
1433 cpi->max_lun = 7;
1434 cpi->unit_number = cam_sim_unit(sim);
1435 cpi->bus_id = bus;
1436 cpi->initiator_id =
1437 (bus == gdt->sc_virt_bus ? 127 : gdt->sc_bus_id[bus]);
1438 cpi->base_transfer_speed = 3300;
1439 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
1440 strncpy(cpi->hba_vid, "Intel Corp.", HBA_IDLEN);
1441 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
1442 cpi->transport = XPORT_SPI;
1443 cpi->transport_version = 2;
1444 cpi->protocol = PROTO_SCSI;
1445 cpi->protocol_version = SCSI_REV_2;
1446 cpi->ccb_h.status = CAM_REQ_CMP;
1447 --gdt_stat.io_count_act;
1448 xpt_done(ccb);
1449 break;
1450 }
1451 default:
1452 GDT_DPRINTF(GDT_D_INVALID, ("gdt_next(%p) cmd 0x%x invalid\n",
1453 gdt, ccb->ccb_h.func_code));
1454 ccb->ccb_h.status = CAM_REQ_INVALID;
1455 --gdt_stat.io_count_act;
1456 xpt_done(ccb);
1457 break;
1458 }
1459 }
1460
1461 static void
1462 iir_poll( struct cam_sim *sim )
1463 {
1464 struct gdt_softc *gdt;
1465
1466 gdt = (struct gdt_softc *)cam_sim_softc( sim );
1467 GDT_DPRINTF(GDT_D_CMD, ("iir_poll sim %p gdt %p\n", sim, gdt));
1468 iir_intr(gdt);
1469 }
1470
1471 static void
1472 iir_timeout(void *arg)
1473 {
1474 GDT_DPRINTF(GDT_D_TIMEOUT, ("iir_timeout(%p)\n", arg));
1475 }
1476
1477 static void
1478 iir_watchdog(void *arg)
1479 {
1480 struct gdt_softc *gdt;
1481
1482 gdt = (struct gdt_softc *)arg;
1483 GDT_DPRINTF(GDT_D_DEBUG, ("iir_watchdog(%p)\n", gdt));
1484
1485 {
1486 int ccbs = 0, ucmds = 0, frees = 0, pends = 0;
1487 struct gdt_ccb *p;
1488 struct ccb_hdr *h;
1489 struct gdt_ucmd *u;
1490
1491 for (h = TAILQ_FIRST(&gdt->sc_ccb_queue); h != NULL;
1492 h = TAILQ_NEXT(h, sim_links.tqe))
1493 ccbs++;
1494 for (u = TAILQ_FIRST(&gdt->sc_ucmd_queue); u != NULL;
1495 u = TAILQ_NEXT(u, links))
1496 ucmds++;
1497 for (p = SLIST_FIRST(&gdt->sc_free_gccb); p != NULL;
1498 p = SLIST_NEXT(p, sle))
1499 frees++;
1500 for (p = SLIST_FIRST(&gdt->sc_pending_gccb); p != NULL;
1501 p = SLIST_NEXT(p, sle))
1502 pends++;
1503
1504 GDT_DPRINTF(GDT_D_TIMEOUT, ("ccbs %d ucmds %d frees %d pends %d\n",
1505 ccbs, ucmds, frees, pends));
1506 }
1507
1508 callout_reset(&gdt->watchdog_timer, hz * 15, iir_watchdog, gdt);
1509 }
1510
1511 static void
1512 iir_shutdown( void *arg, int howto )
1513 {
1514 struct gdt_softc *gdt;
1515 struct gdt_ccb *gccb;
1516 gdt_ucmd_t *ucmd;
1517 int i;
1518
1519 gdt = (struct gdt_softc *)arg;
1520 GDT_DPRINTF(GDT_D_CMD, ("iir_shutdown(%p, %d)\n", gdt, howto));
1521
1522 kprintf("iir%d: Flushing all Host Drives. Please wait ... ",
1523 gdt->sc_hanum);
1524
1525 /* allocate ucmd buffer */
1526 ucmd = kmalloc(sizeof(gdt_ucmd_t), M_DEVBUF, M_INTWAIT | M_ZERO);
1527
1528 /* wait for pending IOs */
1529 crit_enter();
1530 gdt->sc_state = GDT_SHUTDOWN;
1531 crit_exit();
1532 if ((gccb = SLIST_FIRST(&gdt->sc_pending_gccb)) != NULL)
1533 (void) tsleep((void *)gccb, PCATCH, "iirshw", 100 * hz);
1534
1535 /* flush */
1536 for (i = 0; i < GDT_MAX_HDRIVES; ++i) {
1537 if (gdt->sc_hdr[i].hd_present) {
1538 ucmd->service = GDT_CACHESERVICE;
1539 ucmd->OpCode = GDT_FLUSH;
1540 ucmd->u.cache.DeviceNo = i;
1541 crit_enter();
1542 TAILQ_INSERT_TAIL(&gdt->sc_ucmd_queue, ucmd, links);
1543 ucmd->complete_flag = FALSE;
1544 crit_exit();
1545 gdt_next(gdt);
1546 if (!ucmd->complete_flag)
1547 (void) tsleep((void *)ucmd, PCATCH, "iirshw", 10*hz);
1548 }
1549 }
1550
1551 kfree(ucmd, M_DEVBUF);
1552 kprintf("Done.\n");
1553 }
1554
1555 void
1556 iir_intr(void *arg)
1557 {
1558 struct gdt_softc *gdt = arg;
1559 struct gdt_intr_ctx ctx;
1560 struct gdt_ccb *gccb;
1561 gdt_ucmd_t *ucmd;
1562 u_int32_t cnt;
1563
1564 GDT_DPRINTF(GDT_D_INTR, ("gdt_intr(%p)\n", gdt));
1565
1566 /* If polling and we were not called from gdt_wait, just return */
1567 if ((gdt->sc_state & GDT_POLLING) &&
1568 !(gdt->sc_state & GDT_POLL_WAIT))
1569 return;
1570
1571 if (!(gdt->sc_state & GDT_POLLING))
1572 crit_enter();
1573 gdt_wait_index = 0;
1574
1575 ctx.istatus = gdt->sc_get_status(gdt);
1576 if (!ctx.istatus) {
1577 if (!(gdt->sc_state & GDT_POLLING))
1578 crit_exit();
1579 gdt->sc_status = GDT_S_NO_STATUS;
1580 return;
1581 }
1582
1583 gdt->sc_intr(gdt, &ctx);
1584
1585 gdt->sc_status = ctx.cmd_status;
1586 gdt->sc_service = ctx.service;
1587 gdt->sc_info = ctx.info;
1588 gdt->sc_info2 = ctx.info2;
1589
1590 if (gdt->sc_state & GDT_POLL_WAIT) {
1591 gdt_wait_gdt = gdt;
1592 gdt_wait_index = ctx.istatus;
1593 }
1594
1595 if (ctx.istatus == GDT_ASYNCINDEX) {
1596 gdt_async_event(gdt, ctx.service);
1597 if (!(gdt->sc_state & GDT_POLLING))
1598 crit_exit();
1599 return;
1600 }
1601 if (ctx.istatus == GDT_SPEZINDEX) {
1602 GDT_DPRINTF(GDT_D_INVALID,
1603 ("iir%d: Service unknown or not initialized!\n",
1604 gdt->sc_hanum));
1605 gdt->sc_dvr.size = sizeof(gdt->sc_dvr.eu.driver);
1606 gdt->sc_dvr.eu.driver.ionode = gdt->sc_hanum;
1607 gdt_store_event(GDT_ES_DRIVER, 4, &gdt->sc_dvr);
1608 if (!(gdt->sc_state & GDT_POLLING))
1609 crit_exit();
1610 return;
1611 }
1612
1613 gccb = &gdt->sc_gccbs[ctx.istatus - 2];
1614 ctx.service = gccb->gc_service;
1615
1616 switch (gccb->gc_flags) {
1617 case GDT_GCF_UNUSED:
1618 GDT_DPRINTF(GDT_D_INVALID, ("iir%d: Index (%d) to unused command!\n",
1619 gdt->sc_hanum, ctx.istatus));
1620 gdt->sc_dvr.size = sizeof(gdt->sc_dvr.eu.driver);
1621 gdt->sc_dvr.eu.driver.ionode = gdt->sc_hanum;
1622 gdt->sc_dvr.eu.driver.index = ctx.istatus;
1623 gdt_store_event(GDT_ES_DRIVER, 1, &gdt->sc_dvr);
1624 gdt_free_ccb(gdt, gccb);
1625 /* fallthrough */
1626
1627 case GDT_GCF_INTERNAL:
1628 if (!(gdt->sc_state & GDT_POLLING))
1629 crit_exit();
1630 break;
1631
1632 case GDT_GCF_IOCTL:
1633 ucmd = gccb->gc_ucmd;
1634 if (gdt->sc_status == GDT_S_BSY) {
1635 GDT_DPRINTF(GDT_D_DEBUG, ("iir_intr(%p) ioctl: gccb %p busy\n",
1636 gdt, gccb));
1637 TAILQ_INSERT_HEAD(&gdt->sc_ucmd_queue, ucmd, links);
1638 if (!(gdt->sc_state & GDT_POLLING))
1639 crit_exit();
1640 } else {
1641 ucmd->status = gdt->sc_status;
1642 ucmd->info = gdt->sc_info;
1643 ucmd->complete_flag = TRUE;
1644 if (ucmd->service == GDT_CACHESERVICE) {
1645 if (ucmd->OpCode == GDT_IOCTL) {
1646 cnt = ucmd->u.ioctl.param_size;
1647 if (cnt != 0)
1648 bcopy(gccb->gc_scratch, ucmd->data, cnt);
1649 } else {
1650 cnt = ucmd->u.cache.BlockCnt * GDT_SECTOR_SIZE;
1651 if (cnt != 0)
1652 bcopy(gccb->gc_scratch, ucmd->data, cnt);
1653 }
1654 } else {
1655 cnt = ucmd->u.raw.sdlen;
1656 if (cnt != 0)
1657 bcopy(gccb->gc_scratch, ucmd->data, cnt);
1658 if (ucmd->u.raw.sense_len != 0)
1659 bcopy(gccb->gc_scratch, ucmd->data, cnt);
1660 }
1661 gdt_free_ccb(gdt, gccb);
1662 if (!(gdt->sc_state & GDT_POLLING))
1663 crit_exit();
1664 /* wakeup */
1665 wakeup(ucmd);
1666 }
1667 gdt_next(gdt);
1668 break;
1669
1670 default:
1671 gdt_free_ccb(gdt, gccb);
1672 gdt_sync_event(gdt, ctx.service, ctx.istatus, gccb);
1673 if (!(gdt->sc_state & GDT_POLLING))
1674 crit_exit();
1675 gdt_next(gdt);
1676 break;
1677 }
1678 }
1679
1680 int
1681 gdt_async_event(struct gdt_softc *gdt, int service)
1682 {
1683 struct gdt_ccb *gccb;
1684
1685 GDT_DPRINTF(GDT_D_INTR, ("gdt_async_event(%p, %d)\n", gdt, service));
1686
1687 if (service == GDT_SCREENSERVICE) {
1688 if (gdt->sc_status == GDT_MSG_REQUEST) {
1689 while (gdt->sc_test_busy(gdt))
1690 DELAY(1);
1691 bzero(gdt->sc_cmd, GDT_CMD_SZ);
1692 gccb = gdt_get_ccb(gdt);
1693 if (gccb == NULL) {
1694 kprintf("iir%d: No free command index found\n",
1695 gdt->sc_hanum);
1696 return (1);
1697 }
1698 gccb->gc_service = service;
1699 gccb->gc_flags = GDT_GCF_SCREEN;
1700 gdt->sc_set_sema0(gdt);
1701 gdt_enc32(gdt->sc_cmd + GDT_CMD_COMMANDINDEX,
1702 gccb->gc_cmd_index);
1703 gdt_enc16(gdt->sc_cmd + GDT_CMD_OPCODE, GDT_READ);
1704 gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_SCREEN_MSG_HANDLE,
1705 GDT_MSG_INV_HANDLE);
1706 gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_SCREEN_MSG_ADDR,
1707 gdt_ccb_vtop(gdt, gccb) +
1708 offsetof(struct gdt_ccb, gc_scratch[0]));
1709 gdt->sc_cmd_off = 0;
1710 gdt->sc_cmd_len = roundup(GDT_CMD_UNION + GDT_SCREEN_SZ,
1711 sizeof(u_int32_t));
1712 gdt->sc_cmd_cnt = 0;
1713 gdt->sc_copy_cmd(gdt, gccb);
1714 kprintf("iir%d: [PCI %d/%d] ",
1715 gdt->sc_hanum,gdt->sc_bus,gdt->sc_slot);
1716 gdt->sc_release_event(gdt);
1717 }
1718
1719 } else {
1720 if ((gdt->sc_fw_vers & 0xff) >= 0x1a) {
1721 gdt->sc_dvr.size = 0;
1722 gdt->sc_dvr.eu.async.ionode = gdt->sc_hanum;
1723 gdt->sc_dvr.eu.async.status = gdt->sc_status;
1724 /* severity and event_string already set! */
1725 } else {
1726 gdt->sc_dvr.size = sizeof(gdt->sc_dvr.eu.async);
1727 gdt->sc_dvr.eu.async.ionode = gdt->sc_hanum;
1728 gdt->sc_dvr.eu.async.service = service;
1729 gdt->sc_dvr.eu.async.status = gdt->sc_status;
1730 gdt->sc_dvr.eu.async.info = gdt->sc_info;
1731 *(u_int32_t *)gdt->sc_dvr.eu.async.scsi_coord = gdt->sc_info2;
1732 }
1733 gdt_store_event(GDT_ES_ASYNC, service, &gdt->sc_dvr);
1734 kprintf("iir%d: %s\n", gdt->sc_hanum, gdt->sc_dvr.event_string);
1735 }
1736
1737 return (0);
1738 }
1739
1740 int
1741 gdt_sync_event(struct gdt_softc *gdt, int service,
1742 u_int8_t index, struct gdt_ccb *gccb)
1743 {
1744 union ccb *ccb;
1745 bus_dmasync_op_t op;
1746
1747 GDT_DPRINTF(GDT_D_INTR,
1748 ("gdt_sync_event(%p, %d, %d, %p)\n", gdt,service,index,gccb));
1749
1750 ccb = gccb->gc_ccb;
1751
1752 if (service == GDT_SCREENSERVICE) {
1753 u_int32_t msg_len;
1754
1755 msg_len = gdt_dec32(gccb->gc_scratch + GDT_SCR_MSG_LEN);
1756 if (msg_len)
1757 if (!(gccb->gc_scratch[GDT_SCR_MSG_ANSWER] &&
1758 gccb->gc_scratch[GDT_SCR_MSG_EXT])) {
1759 gccb->gc_scratch[GDT_SCR_MSG_TEXT + msg_len] = '\0';
1760 kprintf("%s",&gccb->gc_scratch[GDT_SCR_MSG_TEXT]);
1761 }
1762
1763 if (gccb->gc_scratch[GDT_SCR_MSG_EXT] &&
1764 !gccb->gc_scratch[GDT_SCR_MSG_ANSWER]) {
1765 while (gdt->sc_test_busy(gdt))
1766 DELAY(1);
1767 bzero(gdt->sc_cmd, GDT_CMD_SZ);
1768 gccb = gdt_get_ccb(gdt);
1769 if (gccb == NULL) {
1770 kprintf("iir%d: No free command index found\n",
1771 gdt->sc_hanum);
1772 return (1);
1773 }
1774 gccb->gc_service = service;
1775 gccb->gc_flags = GDT_GCF_SCREEN;
1776 gdt->sc_set_sema0(gdt);
1777 gdt_enc32(gdt->sc_cmd + GDT_CMD_COMMANDINDEX,
1778 gccb->gc_cmd_index);
1779 gdt_enc16(gdt->sc_cmd + GDT_CMD_OPCODE, GDT_READ);
1780 gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_SCREEN_MSG_HANDLE,
1781 gccb->gc_scratch[GDT_SCR_MSG_HANDLE]);
1782 gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_SCREEN_MSG_ADDR,
1783 gdt_ccb_vtop(gdt, gccb) +
1784 offsetof(struct gdt_ccb, gc_scratch[0]));
1785 gdt->sc_cmd_off = 0;
1786 gdt->sc_cmd_len = roundup(GDT_CMD_UNION + GDT_SCREEN_SZ,
1787 sizeof(u_int32_t));
1788 gdt->sc_cmd_cnt = 0;
1789 gdt->sc_copy_cmd(gdt, gccb);
1790 gdt->sc_release_event(gdt);
1791 return (0);
1792 }
1793
1794 if (gccb->gc_scratch[GDT_SCR_MSG_ANSWER] &&
1795 gdt_dec32(gccb->gc_scratch + GDT_SCR_MSG_ALEN)) {
1796 /* default answers (getchar() not possible) */
1797 if (gdt_dec32(gccb->gc_scratch + GDT_SCR_MSG_ALEN) == 1) {
1798 gdt_enc32(gccb->gc_scratch + GDT_SCR_MSG_ALEN, 0);
1799 gdt_enc32(gccb->gc_scratch + GDT_SCR_MSG_LEN, 1);
1800 gccb->gc_scratch[GDT_SCR_MSG_TEXT] = 0;
1801 } else {
1802 gdt_enc32(gccb->gc_scratch + GDT_SCR_MSG_ALEN,
1803 gdt_dec32(gccb->gc_scratch + GDT_SCR_MSG_ALEN) - 2);
1804 gdt_enc32(gccb->gc_scratch + GDT_SCR_MSG_LEN, 2);
1805 gccb->gc_scratch[GDT_SCR_MSG_TEXT] = 1;
1806 gccb->gc_scratch[GDT_SCR_MSG_TEXT + 1] = 0;
1807 }
1808 gccb->gc_scratch[GDT_SCR_MSG_EXT] = 0;
1809 gccb->gc_scratch[GDT_SCR_MSG_ANSWER] = 0;
1810 while (gdt->sc_test_busy(gdt))
1811 DELAY(1);
1812 bzero(gdt->sc_cmd, GDT_CMD_SZ);
1813 gccb = gdt_get_ccb(gdt);
1814 if (gccb == NULL) {
1815 kprintf("iir%d: No free command index found\n",
1816 gdt->sc_hanum);
1817 return (1);
1818 }
1819 gccb->gc_service = service;
1820 gccb->gc_flags = GDT_GCF_SCREEN;
1821 gdt->sc_set_sema0(gdt);
1822 gdt_enc32(gdt->sc_cmd + GDT_CMD_COMMANDINDEX,
1823 gccb->gc_cmd_index);
1824 gdt_enc16(gdt->sc_cmd + GDT_CMD_OPCODE, GDT_WRITE);
1825 gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_SCREEN_MSG_HANDLE,
1826 gccb->gc_scratch[GDT_SCR_MSG_HANDLE]);
1827 gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_SCREEN_MSG_ADDR,
1828 gdt_ccb_vtop(gdt, gccb) +
1829 offsetof(struct gdt_ccb, gc_scratch[0]));
1830 gdt->sc_cmd_off = 0;
1831 gdt->sc_cmd_len = roundup(GDT_CMD_UNION + GDT_SCREEN_SZ,
1832 sizeof(u_int32_t));
1833 gdt->sc_cmd_cnt = 0;
1834 gdt->sc_copy_cmd(gdt, gccb);
1835 gdt->sc_release_event(gdt);
1836 return (0);
1837 }
1838 kprintf("\n");
1839 return (0);
1840 } else {
1841 callout_stop(&ccb->ccb_h.timeout_ch);
1842 if (gdt->sc_status == GDT_S_BSY) {
1843 GDT_DPRINTF(GDT_D_DEBUG, ("gdt_sync_event(%p) gccb %p busy\n",
1844 gdt, gccb));
1845 TAILQ_INSERT_HEAD(&gdt->sc_ccb_queue, &ccb->ccb_h, sim_links.tqe);
1846 ++gdt_stat.req_queue_act;
1847 if (gdt_stat.req_queue_act > gdt_stat.req_queue_max)
1848 gdt_stat.req_queue_max = gdt_stat.req_queue_act;
1849 return (2);
1850 }
1851
1852 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
1853 op = BUS_DMASYNC_POSTREAD;
1854 else
1855 op = BUS_DMASYNC_POSTWRITE;
1856 bus_dmamap_sync(gdt->sc_buffer_dmat, gccb->gc_dmamap, op);
1857
1858 ccb->csio.resid = 0;
1859 if (gdt->sc_status == GDT_S_OK) {
1860 ccb->ccb_h.status = CAM_REQ_CMP;
1861 } else {
1862 /* error */
1863 if (gccb->gc_service == GDT_CACHESERVICE) {
1864 ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID;
1865 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND;
1866 bzero(&ccb->csio.sense_data, ccb->csio.sense_len);
1867 ccb->csio.sense_data.error_code =
1868 SSD_CURRENT_ERROR | SSD_ERRCODE_VALID;
1869 ccb->csio.sense_data.flags = SSD_KEY_NOT_READY;
1870
1871 gdt->sc_dvr.size = sizeof(gdt->sc_dvr.eu.sync);
1872 gdt->sc_dvr.eu.sync.ionode = gdt->sc_hanum;
1873 gdt->sc_dvr.eu.sync.service = service;
1874 gdt->sc_dvr.eu.sync.status = gdt->sc_status;
1875 gdt->sc_dvr.eu.sync.info = gdt->sc_info;
1876 gdt->sc_dvr.eu.sync.hostdrive = ccb->ccb_h.target_id;
1877 if (gdt->sc_status >= 0x8000)
1878 gdt_store_event(GDT_ES_SYNC, 0, &gdt->sc_dvr);
1879 else
1880 gdt_store_event(GDT_ES_SYNC, service, &gdt->sc_dvr);
1881 } else {
1882 /* raw service */
1883 if (gdt->sc_status != GDT_S_RAW_SCSI || gdt->sc_info >= 0x100) {
1884 ccb->ccb_h.status = CAM_SEL_TIMEOUT;
1885 } else {
1886 ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR|CAM_AUTOSNS_VALID;
1887 ccb->csio.scsi_status = gdt->sc_info;
1888 bcopy(gccb->gc_scratch, &ccb->csio.sense_data,
1889 ccb->csio.sense_len);
1890 }
1891 }
1892 }
1893 --gdt_stat.io_count_act;
1894 xpt_done(ccb);
1895 }
1896 return (0);
1897 }
1898
1899 /* Controller event handling functions */
1900 gdt_evt_str *
1901 gdt_store_event(u_int16_t source, u_int16_t idx, gdt_evt_data *evt)
1902 {
1903 gdt_evt_str *e;
1904 struct timeval tv;
1905
1906 GDT_DPRINTF(GDT_D_MISC, ("gdt_store_event(%d, %d)\n", source, idx));
1907 if (source == 0) /* no source -> no event */
1908 return 0;
1909
1910 if (ebuffer[elastidx].event_source == source &&
1911 ebuffer[elastidx].event_idx == idx &&
1912 ((evt->size != 0 && ebuffer[elastidx].event_data.size != 0 &&
1913 !memcmp((char *)&ebuffer[elastidx].event_data.eu,
1914 (char *)&evt->eu, evt->size)) ||
1915 (evt->size == 0 && ebuffer[elastidx].event_data.size == 0 &&
1916 !strcmp((char *)&ebuffer[elastidx].event_data.event_string,
1917 (char *)&evt->event_string)))) {
1918 e = &ebuffer[elastidx];
1919 getmicrotime(&tv);
1920 e->last_stamp = tv.tv_sec;
1921 ++e->same_count;
1922 } else {
1923 if (ebuffer[elastidx].event_source != 0) { /* entry not free ? */
1924 ++elastidx;
1925 if (elastidx == GDT_MAX_EVENTS)
1926 elastidx = 0;
1927 if (elastidx == eoldidx) { /* reached mark ? */
1928 ++eoldidx;
1929 if (eoldidx == GDT_MAX_EVENTS)
1930 eoldidx = 0;
1931 }
1932 }
1933 e = &ebuffer[elastidx];
1934 e->event_source = source;
1935 e->event_idx = idx;
1936 getmicrotime(&tv);
1937 e->first_stamp = e->last_stamp = tv.tv_sec;
1938 e->same_count = 1;
1939 e->event_data = *evt;
1940 e->application = 0;
1941 }
1942 return e;
1943 }
1944
1945 int
1946 gdt_read_event(int handle, gdt_evt_str *estr)
1947 {
1948 gdt_evt_str *e;
1949 int eindex;
1950
1951 GDT_DPRINTF(GDT_D_MISC, ("gdt_read_event(%d)\n", handle));
1952 crit_enter();
1953 if (handle == -1)
1954 eindex = eoldidx;
1955 else
1956 eindex = handle;
1957 estr->event_source = 0;
1958
1959 if (eindex >= GDT_MAX_EVENTS) {
1960 crit_exit();
1961 return eindex;
1962 }
1963 e = &ebuffer[eindex];
1964 if (e->event_source != 0) {
1965 if (eindex != elastidx) {
1966 if (++eindex == GDT_MAX_EVENTS)
1967 eindex = 0;
1968 } else {
1969 eindex = -1;
1970 }
1971 memcpy(estr, e, sizeof(gdt_evt_str));
1972 }
1973 crit_exit();
1974 return eindex;
1975 }
1976
1977 void
1978 gdt_readapp_event(u_int8_t application, gdt_evt_str *estr)
1979 {
1980 gdt_evt_str *e;
1981 int found = FALSE;
1982 int eindex;
1983
1984 GDT_DPRINTF(GDT_D_MISC, ("gdt_readapp_event(%d)\n", application));
1985 crit_enter();
1986 eindex = eoldidx;
1987 for (;;) {
1988 e = &ebuffer[eindex];
1989 if (e->event_source == 0)
1990 break;
1991 if ((e->application & application) == 0) {
1992 e->application |= application;
1993 found = TRUE;
1994 break;
1995 }
1996 if (eindex == elastidx)
1997 break;
1998 if (++eindex == GDT_MAX_EVENTS)
1999 eindex = 0;
2000 }
2001 if (found)
2002 memcpy(estr, e, sizeof(gdt_evt_str));
2003 else
2004 estr->event_source = 0;
2005 crit_exit();
2006 }
2007
2008 void
2009 gdt_clear_events(void)
2010 {
2011 GDT_DPRINTF(GDT_D_MISC, ("gdt_clear_events\n"));
2012
2013 eoldidx = elastidx = 0;
2014 ebuffer[0].event_source = 0;
2015 }
DragonFly BSD