1 /*-
2 * Copyright (c) 2009 Alexander Motin <mav@FreeBSD.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer,
10 * without modification, immediately at the beginning of the file.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
29
30 #include <sys/param.h>
31 #include <sys/module.h>
32 #include <sys/systm.h>
33 #include <sys/kernel.h>
34 #include <sys/ata.h>
35 #include <sys/bus.h>
36 #include <sys/endian.h>
37 #include <sys/malloc.h>
38 #include <sys/lock.h>
39 #include <sys/mutex.h>
40 #include <sys/sema.h>
41 #include <sys/taskqueue.h>
42 #include <vm/uma.h>
43 #include <machine/stdarg.h>
44 #include <machine/resource.h>
45 #include <machine/bus.h>
46 #include <sys/rman.h>
47 #include <dev/led/led.h>
48 #include <dev/pci/pcivar.h>
49 #include <dev/pci/pcireg.h>
50 #include "siis.h"
51
52 #include <cam/cam.h>
53 #include <cam/cam_ccb.h>
54 #include <cam/cam_sim.h>
55 #include <cam/cam_xpt_sim.h>
56 #include <cam/cam_debug.h>
57
58 /* local prototypes */
59 static int siis_setup_interrupt(device_t dev);
60 static void siis_intr(void *data);
61 static int siis_suspend(device_t dev);
62 static int siis_resume(device_t dev);
63 static int siis_ch_init(device_t dev);
64 static int siis_ch_deinit(device_t dev);
65 static int siis_ch_suspend(device_t dev);
66 static int siis_ch_resume(device_t dev);
67 static void siis_ch_intr_locked(void *data);
68 static void siis_ch_intr(void *data);
69 static void siis_ch_led(void *priv, int onoff);
70 static void siis_begin_transaction(device_t dev, union ccb *ccb);
71 static void siis_dmasetprd(void *arg, bus_dma_segment_t *segs, int nsegs, int error);
72 static void siis_execute_transaction(struct siis_slot *slot);
73 static void siis_timeout(struct siis_slot *slot);
74 static void siis_end_transaction(struct siis_slot *slot, enum siis_err_type et);
75 static int siis_setup_fis(device_t dev, struct siis_cmd *ctp, union ccb *ccb, int tag);
76 static void siis_dmainit(device_t dev);
77 static void siis_dmasetupc_cb(void *xsc, bus_dma_segment_t *segs, int nsegs, int error);
78 static void siis_dmafini(device_t dev);
79 static void siis_slotsalloc(device_t dev);
80 static void siis_slotsfree(device_t dev);
81 static void siis_reset(device_t dev);
82 static void siis_portinit(device_t dev);
83 static int siis_wait_ready(device_t dev, int t);
84
85 static int siis_sata_connect(struct siis_channel *ch);
86
87 static void siis_issue_recovery(device_t dev);
88 static void siis_process_read_log(device_t dev, union ccb *ccb);
89 static void siis_process_request_sense(device_t dev, union ccb *ccb);
90
91 static void siisaction(struct cam_sim *sim, union ccb *ccb);
92 static void siispoll(struct cam_sim *sim);
93
94 static MALLOC_DEFINE(M_SIIS, "SIIS driver", "SIIS driver data buffers");
95
96 static struct {
97 uint32_t id;
98 const char *name;
99 int ports;
100 int quirks;
101 #define SIIS_Q_SNTF 1
102 #define SIIS_Q_NOMSI 2
103 } siis_ids[] = {
104 {0x31241095, "SiI3124", 4, 0},
105 {0x31248086, "SiI3124", 4, 0},
106 {0x31321095, "SiI3132", 2, SIIS_Q_SNTF|SIIS_Q_NOMSI},
107 {0x02421095, "SiI3132", 2, SIIS_Q_SNTF|SIIS_Q_NOMSI},
108 {0x02441095, "SiI3132", 2, SIIS_Q_SNTF|SIIS_Q_NOMSI},
109 {0x31311095, "SiI3131", 1, SIIS_Q_SNTF|SIIS_Q_NOMSI},
110 {0x35311095, "SiI3531", 1, SIIS_Q_SNTF|SIIS_Q_NOMSI},
111 {0, NULL, 0, 0}
112 };
113
114 #define recovery_type spriv_field0
115 #define RECOVERY_NONE 0
116 #define RECOVERY_READ_LOG 1
117 #define RECOVERY_REQUEST_SENSE 2
118 #define recovery_slot spriv_field1
119
120 static int
siis_probe(device_t dev)121 siis_probe(device_t dev)
122 {
123 char buf[64];
124 int i;
125 uint32_t devid = pci_get_devid(dev);
126
127 for (i = 0; siis_ids[i].id != 0; i++) {
128 if (siis_ids[i].id == devid) {
129 snprintf(buf, sizeof(buf), "%s SATA controller",
130 siis_ids[i].name);
131 device_set_desc_copy(dev, buf);
132 return (BUS_PROBE_DEFAULT);
133 }
134 }
135 return (ENXIO);
136 }
137
138 static int
siis_attach(device_t dev)139 siis_attach(device_t dev)
140 {
141 struct siis_controller *ctlr = device_get_softc(dev);
142 uint32_t devid = pci_get_devid(dev);
143 device_t child;
144 int error, i, unit;
145
146 ctlr->dev = dev;
147 for (i = 0; siis_ids[i].id != 0; i++) {
148 if (siis_ids[i].id == devid)
149 break;
150 }
151 ctlr->quirks = siis_ids[i].quirks;
152 /* Global memory */
153 ctlr->r_grid = PCIR_BAR(0);
154 if (!(ctlr->r_gmem = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
155 &ctlr->r_grid, RF_ACTIVE)))
156 return (ENXIO);
157 ctlr->gctl = ATA_INL(ctlr->r_gmem, SIIS_GCTL);
158 /* Channels memory */
159 ctlr->r_rid = PCIR_BAR(2);
160 if (!(ctlr->r_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
161 &ctlr->r_rid, RF_ACTIVE)))
162 return (ENXIO);
163 /* Setup our own memory management for channels. */
164 ctlr->sc_iomem.rm_start = rman_get_start(ctlr->r_mem);
165 ctlr->sc_iomem.rm_end = rman_get_end(ctlr->r_mem);
166 ctlr->sc_iomem.rm_type = RMAN_ARRAY;
167 ctlr->sc_iomem.rm_descr = "I/O memory addresses";
168 if ((error = rman_init(&ctlr->sc_iomem)) != 0) {
169 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem);
170 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_grid, ctlr->r_gmem);
171 return (error);
172 }
173 if ((error = rman_manage_region(&ctlr->sc_iomem,
174 rman_get_start(ctlr->r_mem), rman_get_end(ctlr->r_mem))) != 0) {
175 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem);
176 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_grid, ctlr->r_gmem);
177 rman_fini(&ctlr->sc_iomem);
178 return (error);
179 }
180 pci_enable_busmaster(dev);
181 /* Reset controller */
182 siis_resume(dev);
183 /* Number of HW channels */
184 ctlr->channels = siis_ids[i].ports;
185 /* Setup interrupts. */
186 if (siis_setup_interrupt(dev)) {
187 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem);
188 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_grid, ctlr->r_gmem);
189 rman_fini(&ctlr->sc_iomem);
190 return ENXIO;
191 }
192 /* Attach all channels on this controller */
193 for (unit = 0; unit < ctlr->channels; unit++) {
194 child = device_add_child(dev, "siisch", -1);
195 if (child == NULL)
196 device_printf(dev, "failed to add channel device\n");
197 else
198 device_set_ivars(child, (void *)(intptr_t)unit);
199 }
200 bus_generic_attach(dev);
201 return 0;
202 }
203
204 static int
siis_detach(device_t dev)205 siis_detach(device_t dev)
206 {
207 struct siis_controller *ctlr = device_get_softc(dev);
208
209 /* Detach & delete all children */
210 device_delete_children(dev);
211
212 /* Free interrupts. */
213 if (ctlr->irq.r_irq) {
214 bus_teardown_intr(dev, ctlr->irq.r_irq,
215 ctlr->irq.handle);
216 bus_release_resource(dev, SYS_RES_IRQ,
217 ctlr->irq.r_irq_rid, ctlr->irq.r_irq);
218 }
219 pci_release_msi(dev);
220 /* Free memory. */
221 rman_fini(&ctlr->sc_iomem);
222 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem);
223 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_grid, ctlr->r_gmem);
224 return (0);
225 }
226
227 static int
siis_suspend(device_t dev)228 siis_suspend(device_t dev)
229 {
230 struct siis_controller *ctlr = device_get_softc(dev);
231
232 bus_generic_suspend(dev);
233 /* Put controller into reset state. */
234 ctlr->gctl |= SIIS_GCTL_GRESET;
235 ATA_OUTL(ctlr->r_gmem, SIIS_GCTL, ctlr->gctl);
236 return 0;
237 }
238
239 static int
siis_resume(device_t dev)240 siis_resume(device_t dev)
241 {
242 struct siis_controller *ctlr = device_get_softc(dev);
243
244 /* Set PCIe max read request size to at least 1024 bytes */
245 if (pci_get_max_read_req(dev) < 1024)
246 pci_set_max_read_req(dev, 1024);
247 /* Put controller into reset state. */
248 ctlr->gctl |= SIIS_GCTL_GRESET;
249 ATA_OUTL(ctlr->r_gmem, SIIS_GCTL, ctlr->gctl);
250 DELAY(10000);
251 /* Get controller out of reset state and enable port interrupts. */
252 ctlr->gctl &= ~(SIIS_GCTL_GRESET | SIIS_GCTL_I2C_IE);
253 ctlr->gctl |= 0x0000000f;
254 ATA_OUTL(ctlr->r_gmem, SIIS_GCTL, ctlr->gctl);
255 return (bus_generic_resume(dev));
256 }
257
258 static int
siis_setup_interrupt(device_t dev)259 siis_setup_interrupt(device_t dev)
260 {
261 struct siis_controller *ctlr = device_get_softc(dev);
262 int msi = ctlr->quirks & SIIS_Q_NOMSI ? 0 : 1;
263
264 /* Process hints. */
265 resource_int_value(device_get_name(dev),
266 device_get_unit(dev), "msi", &msi);
267 if (msi < 0)
268 msi = 0;
269 else if (msi > 0)
270 msi = min(1, pci_msi_count(dev));
271 /* Allocate MSI if needed/present. */
272 if (msi && pci_alloc_msi(dev, &msi) != 0)
273 msi = 0;
274 /* Allocate all IRQs. */
275 ctlr->irq.r_irq_rid = msi ? 1 : 0;
276 if (!(ctlr->irq.r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
277 &ctlr->irq.r_irq_rid, RF_SHAREABLE | RF_ACTIVE))) {
278 device_printf(dev, "unable to map interrupt\n");
279 return ENXIO;
280 }
281 if ((bus_setup_intr(dev, ctlr->irq.r_irq, ATA_INTR_FLAGS, NULL,
282 siis_intr, ctlr, &ctlr->irq.handle))) {
283 /* SOS XXX release r_irq */
284 device_printf(dev, "unable to setup interrupt\n");
285 return ENXIO;
286 }
287 return (0);
288 }
289
290 /*
291 * Common case interrupt handler.
292 */
293 static void
siis_intr(void * data)294 siis_intr(void *data)
295 {
296 struct siis_controller *ctlr = (struct siis_controller *)data;
297 u_int32_t is;
298 void *arg;
299 int unit;
300
301 is = ATA_INL(ctlr->r_gmem, SIIS_IS);
302 for (unit = 0; unit < ctlr->channels; unit++) {
303 if ((is & SIIS_IS_PORT(unit)) != 0 &&
304 (arg = ctlr->interrupt[unit].argument)) {
305 ctlr->interrupt[unit].function(arg);
306 }
307 }
308 /* Acknowledge interrupt, if MSI enabled. */
309 if (ctlr->irq.r_irq_rid) {
310 ATA_OUTL(ctlr->r_gmem, SIIS_GCTL,
311 ctlr->gctl | SIIS_GCTL_MSIACK);
312 }
313 }
314
315 static struct resource *
siis_alloc_resource(device_t dev,device_t child,int type,int * rid,u_long start,u_long end,u_long count,u_int flags)316 siis_alloc_resource(device_t dev, device_t child, int type, int *rid,
317 u_long start, u_long end, u_long count, u_int flags)
318 {
319 struct siis_controller *ctlr = device_get_softc(dev);
320 int unit = ((struct siis_channel *)device_get_softc(child))->unit;
321 struct resource *res = NULL;
322 int offset = unit << 13;
323 long st;
324
325 switch (type) {
326 case SYS_RES_MEMORY:
327 st = rman_get_start(ctlr->r_mem);
328 res = rman_reserve_resource(&ctlr->sc_iomem, st + offset,
329 st + offset + 0x2000, 0x2000, RF_ACTIVE, child);
330 if (res) {
331 bus_space_handle_t bsh;
332 bus_space_tag_t bst;
333 bsh = rman_get_bushandle(ctlr->r_mem);
334 bst = rman_get_bustag(ctlr->r_mem);
335 bus_space_subregion(bst, bsh, offset, 0x2000, &bsh);
336 rman_set_bushandle(res, bsh);
337 rman_set_bustag(res, bst);
338 }
339 break;
340 case SYS_RES_IRQ:
341 if (*rid == ATA_IRQ_RID)
342 res = ctlr->irq.r_irq;
343 break;
344 }
345 return (res);
346 }
347
348 static int
siis_release_resource(device_t dev,device_t child,int type,int rid,struct resource * r)349 siis_release_resource(device_t dev, device_t child, int type, int rid,
350 struct resource *r)
351 {
352
353 switch (type) {
354 case SYS_RES_MEMORY:
355 rman_release_resource(r);
356 return (0);
357 case SYS_RES_IRQ:
358 if (rid != ATA_IRQ_RID)
359 return ENOENT;
360 return (0);
361 }
362 return (EINVAL);
363 }
364
365 static int
siis_setup_intr(device_t dev,device_t child,struct resource * irq,int flags,driver_filter_t * filter,driver_intr_t * function,void * argument,void ** cookiep)366 siis_setup_intr(device_t dev, device_t child, struct resource *irq,
367 int flags, driver_filter_t *filter, driver_intr_t *function,
368 void *argument, void **cookiep)
369 {
370 struct siis_controller *ctlr = device_get_softc(dev);
371 int unit = (intptr_t)device_get_ivars(child);
372
373 if (filter != NULL) {
374 printf("siis.c: we cannot use a filter here\n");
375 return (EINVAL);
376 }
377 ctlr->interrupt[unit].function = function;
378 ctlr->interrupt[unit].argument = argument;
379 return (0);
380 }
381
382 static int
siis_teardown_intr(device_t dev,device_t child,struct resource * irq,void * cookie)383 siis_teardown_intr(device_t dev, device_t child, struct resource *irq,
384 void *cookie)
385 {
386 struct siis_controller *ctlr = device_get_softc(dev);
387 int unit = (intptr_t)device_get_ivars(child);
388
389 ctlr->interrupt[unit].function = NULL;
390 ctlr->interrupt[unit].argument = NULL;
391 return (0);
392 }
393
394 static int
siis_print_child(device_t dev,device_t child)395 siis_print_child(device_t dev, device_t child)
396 {
397 int retval;
398
399 retval = bus_print_child_header(dev, child);
400 retval += printf(" at channel %d",
401 (int)(intptr_t)device_get_ivars(child));
402 retval += bus_print_child_footer(dev, child);
403
404 return (retval);
405 }
406
407 static int
siis_child_location_str(device_t dev,device_t child,char * buf,size_t buflen)408 siis_child_location_str(device_t dev, device_t child, char *buf,
409 size_t buflen)
410 {
411
412 snprintf(buf, buflen, "channel=%d",
413 (int)(intptr_t)device_get_ivars(child));
414 return (0);
415 }
416
417 static bus_dma_tag_t
siis_get_dma_tag(device_t bus,device_t child)418 siis_get_dma_tag(device_t bus, device_t child)
419 {
420
421 return (bus_get_dma_tag(bus));
422 }
423
424 devclass_t siis_devclass;
425 static device_method_t siis_methods[] = {
426 DEVMETHOD(device_probe, siis_probe),
427 DEVMETHOD(device_attach, siis_attach),
428 DEVMETHOD(device_detach, siis_detach),
429 DEVMETHOD(device_suspend, siis_suspend),
430 DEVMETHOD(device_resume, siis_resume),
431 DEVMETHOD(bus_print_child, siis_print_child),
432 DEVMETHOD(bus_alloc_resource, siis_alloc_resource),
433 DEVMETHOD(bus_release_resource, siis_release_resource),
434 DEVMETHOD(bus_setup_intr, siis_setup_intr),
435 DEVMETHOD(bus_teardown_intr,siis_teardown_intr),
436 DEVMETHOD(bus_child_location_str, siis_child_location_str),
437 DEVMETHOD(bus_get_dma_tag, siis_get_dma_tag),
438 { 0, 0 }
439 };
440 static driver_t siis_driver = {
441 "siis",
442 siis_methods,
443 sizeof(struct siis_controller)
444 };
445 DRIVER_MODULE(siis, pci, siis_driver, siis_devclass, 0, 0);
446 MODULE_VERSION(siis, 1);
447 MODULE_DEPEND(siis, cam, 1, 1, 1);
448
449 static int
siis_ch_probe(device_t dev)450 siis_ch_probe(device_t dev)
451 {
452
453 device_set_desc_copy(dev, "SIIS channel");
454 return (BUS_PROBE_DEFAULT);
455 }
456
457 static int
siis_ch_attach(device_t dev)458 siis_ch_attach(device_t dev)
459 {
460 struct siis_controller *ctlr = device_get_softc(device_get_parent(dev));
461 struct siis_channel *ch = device_get_softc(dev);
462 struct cam_devq *devq;
463 int rid, error, i, sata_rev = 0;
464
465 ch->dev = dev;
466 ch->unit = (intptr_t)device_get_ivars(dev);
467 ch->quirks = ctlr->quirks;
468 ch->pm_level = 0;
469 resource_int_value(device_get_name(dev),
470 device_get_unit(dev), "pm_level", &ch->pm_level);
471 resource_int_value(device_get_name(dev),
472 device_get_unit(dev), "sata_rev", &sata_rev);
473 for (i = 0; i < 16; i++) {
474 ch->user[i].revision = sata_rev;
475 ch->user[i].mode = 0;
476 ch->user[i].bytecount = 8192;
477 ch->user[i].tags = SIIS_MAX_SLOTS;
478 ch->curr[i] = ch->user[i];
479 if (ch->pm_level)
480 ch->user[i].caps = CTS_SATA_CAPS_H_PMREQ;
481 ch->user[i].caps |= CTS_SATA_CAPS_H_AN;
482 }
483 mtx_init(&ch->mtx, "SIIS channel lock", NULL, MTX_DEF);
484 rid = ch->unit;
485 if (!(ch->r_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
486 &rid, RF_ACTIVE)))
487 return (ENXIO);
488 siis_dmainit(dev);
489 siis_slotsalloc(dev);
490 siis_ch_init(dev);
491 mtx_lock(&ch->mtx);
492 rid = ATA_IRQ_RID;
493 if (!(ch->r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
494 &rid, RF_SHAREABLE | RF_ACTIVE))) {
495 device_printf(dev, "Unable to map interrupt\n");
496 error = ENXIO;
497 goto err0;
498 }
499 if ((bus_setup_intr(dev, ch->r_irq, ATA_INTR_FLAGS, NULL,
500 siis_ch_intr_locked, dev, &ch->ih))) {
501 device_printf(dev, "Unable to setup interrupt\n");
502 error = ENXIO;
503 goto err1;
504 }
505 /* Create the device queue for our SIM. */
506 devq = cam_simq_alloc(SIIS_MAX_SLOTS);
507 if (devq == NULL) {
508 device_printf(dev, "Unable to allocate simq\n");
509 error = ENOMEM;
510 goto err1;
511 }
512 /* Construct SIM entry */
513 ch->sim = cam_sim_alloc(siisaction, siispoll, "siisch", ch,
514 device_get_unit(dev), &ch->mtx, 2, SIIS_MAX_SLOTS, devq);
515 if (ch->sim == NULL) {
516 cam_simq_free(devq);
517 device_printf(dev, "unable to allocate sim\n");
518 error = ENOMEM;
519 goto err1;
520 }
521 if (xpt_bus_register(ch->sim, dev, 0) != CAM_SUCCESS) {
522 device_printf(dev, "unable to register xpt bus\n");
523 error = ENXIO;
524 goto err2;
525 }
526 if (xpt_create_path(&ch->path, /*periph*/NULL, cam_sim_path(ch->sim),
527 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
528 device_printf(dev, "unable to create path\n");
529 error = ENXIO;
530 goto err3;
531 }
532 mtx_unlock(&ch->mtx);
533 ch->led = led_create(siis_ch_led, dev, device_get_nameunit(dev));
534 return (0);
535
536 err3:
537 xpt_bus_deregister(cam_sim_path(ch->sim));
538 err2:
539 cam_sim_free(ch->sim, /*free_devq*/TRUE);
540 err1:
541 bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ch->r_irq);
542 err0:
543 bus_release_resource(dev, SYS_RES_MEMORY, ch->unit, ch->r_mem);
544 mtx_unlock(&ch->mtx);
545 mtx_destroy(&ch->mtx);
546 return (error);
547 }
548
549 static int
siis_ch_detach(device_t dev)550 siis_ch_detach(device_t dev)
551 {
552 struct siis_channel *ch = device_get_softc(dev);
553
554 led_destroy(ch->led);
555 mtx_lock(&ch->mtx);
556 xpt_async(AC_LOST_DEVICE, ch->path, NULL);
557 xpt_free_path(ch->path);
558 xpt_bus_deregister(cam_sim_path(ch->sim));
559 cam_sim_free(ch->sim, /*free_devq*/TRUE);
560 mtx_unlock(&ch->mtx);
561
562 bus_teardown_intr(dev, ch->r_irq, ch->ih);
563 bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ch->r_irq);
564
565 siis_ch_deinit(dev);
566 siis_slotsfree(dev);
567 siis_dmafini(dev);
568
569 bus_release_resource(dev, SYS_RES_MEMORY, ch->unit, ch->r_mem);
570 mtx_destroy(&ch->mtx);
571 return (0);
572 }
573
574 static int
siis_ch_init(device_t dev)575 siis_ch_init(device_t dev)
576 {
577 struct siis_channel *ch = device_get_softc(dev);
578
579 /* Get port out of reset state. */
580 ATA_OUTL(ch->r_mem, SIIS_P_CTLCLR, SIIS_P_CTL_PORT_RESET);
581 ATA_OUTL(ch->r_mem, SIIS_P_CTLCLR, SIIS_P_CTL_32BIT);
582 if (ch->pm_present)
583 ATA_OUTL(ch->r_mem, SIIS_P_CTLSET, SIIS_P_CTL_PME);
584 else
585 ATA_OUTL(ch->r_mem, SIIS_P_CTLCLR, SIIS_P_CTL_PME);
586 /* Enable port interrupts */
587 ATA_OUTL(ch->r_mem, SIIS_P_IESET, SIIS_P_IX_ENABLED);
588 return (0);
589 }
590
591 static int
siis_ch_deinit(device_t dev)592 siis_ch_deinit(device_t dev)
593 {
594 struct siis_channel *ch = device_get_softc(dev);
595
596 /* Put port into reset state. */
597 ATA_OUTL(ch->r_mem, SIIS_P_CTLSET, SIIS_P_CTL_PORT_RESET);
598 return (0);
599 }
600
601 static int
siis_ch_suspend(device_t dev)602 siis_ch_suspend(device_t dev)
603 {
604 struct siis_channel *ch = device_get_softc(dev);
605
606 mtx_lock(&ch->mtx);
607 xpt_freeze_simq(ch->sim, 1);
608 while (ch->oslots)
609 msleep(ch, &ch->mtx, PRIBIO, "siissusp", hz/100);
610 siis_ch_deinit(dev);
611 mtx_unlock(&ch->mtx);
612 return (0);
613 }
614
615 static int
siis_ch_resume(device_t dev)616 siis_ch_resume(device_t dev)
617 {
618 struct siis_channel *ch = device_get_softc(dev);
619
620 mtx_lock(&ch->mtx);
621 siis_ch_init(dev);
622 siis_reset(dev);
623 xpt_release_simq(ch->sim, TRUE);
624 mtx_unlock(&ch->mtx);
625 return (0);
626 }
627
628 devclass_t siisch_devclass;
629 static device_method_t siisch_methods[] = {
630 DEVMETHOD(device_probe, siis_ch_probe),
631 DEVMETHOD(device_attach, siis_ch_attach),
632 DEVMETHOD(device_detach, siis_ch_detach),
633 DEVMETHOD(device_suspend, siis_ch_suspend),
634 DEVMETHOD(device_resume, siis_ch_resume),
635 { 0, 0 }
636 };
637 static driver_t siisch_driver = {
638 "siisch",
639 siisch_methods,
640 sizeof(struct siis_channel)
641 };
642 DRIVER_MODULE(siisch, siis, siisch_driver, siis_devclass, 0, 0);
643
644 static void
siis_ch_led(void * priv,int onoff)645 siis_ch_led(void *priv, int onoff)
646 {
647 device_t dev;
648 struct siis_channel *ch;
649
650 dev = (device_t)priv;
651 ch = device_get_softc(dev);
652
653 if (onoff == 0)
654 ATA_OUTL(ch->r_mem, SIIS_P_CTLCLR, SIIS_P_CTL_LED_ON);
655 else
656 ATA_OUTL(ch->r_mem, SIIS_P_CTLSET, SIIS_P_CTL_LED_ON);
657 }
658
659 struct siis_dc_cb_args {
660 bus_addr_t maddr;
661 int error;
662 };
663
664 static void
siis_dmainit(device_t dev)665 siis_dmainit(device_t dev)
666 {
667 struct siis_channel *ch = device_get_softc(dev);
668 struct siis_dc_cb_args dcba;
669
670 /* Command area. */
671 if (bus_dma_tag_create(bus_get_dma_tag(dev), 1024, 0,
672 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
673 NULL, NULL, SIIS_WORK_SIZE, 1, SIIS_WORK_SIZE,
674 0, NULL, NULL, &ch->dma.work_tag))
675 goto error;
676 if (bus_dmamem_alloc(ch->dma.work_tag, (void **)&ch->dma.work, 0,
677 &ch->dma.work_map))
678 goto error;
679 if (bus_dmamap_load(ch->dma.work_tag, ch->dma.work_map, ch->dma.work,
680 SIIS_WORK_SIZE, siis_dmasetupc_cb, &dcba, 0) || dcba.error) {
681 bus_dmamem_free(ch->dma.work_tag, ch->dma.work, ch->dma.work_map);
682 goto error;
683 }
684 ch->dma.work_bus = dcba.maddr;
685 /* Data area. */
686 if (bus_dma_tag_create(bus_get_dma_tag(dev), 1, 0,
687 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
688 NULL, NULL,
689 SIIS_SG_ENTRIES * PAGE_SIZE * SIIS_MAX_SLOTS,
690 SIIS_SG_ENTRIES, 0xFFFFFFFF,
691 0, busdma_lock_mutex, &ch->mtx, &ch->dma.data_tag)) {
692 goto error;
693 }
694 return;
695
696 error:
697 device_printf(dev, "WARNING - DMA initialization failed\n");
698 siis_dmafini(dev);
699 }
700
701 static void
siis_dmasetupc_cb(void * xsc,bus_dma_segment_t * segs,int nsegs,int error)702 siis_dmasetupc_cb(void *xsc, bus_dma_segment_t *segs, int nsegs, int error)
703 {
704 struct siis_dc_cb_args *dcba = (struct siis_dc_cb_args *)xsc;
705
706 if (!(dcba->error = error))
707 dcba->maddr = segs[0].ds_addr;
708 }
709
710 static void
siis_dmafini(device_t dev)711 siis_dmafini(device_t dev)
712 {
713 struct siis_channel *ch = device_get_softc(dev);
714
715 if (ch->dma.data_tag) {
716 bus_dma_tag_destroy(ch->dma.data_tag);
717 ch->dma.data_tag = NULL;
718 }
719 if (ch->dma.work_bus) {
720 bus_dmamap_unload(ch->dma.work_tag, ch->dma.work_map);
721 bus_dmamem_free(ch->dma.work_tag, ch->dma.work, ch->dma.work_map);
722 ch->dma.work_bus = 0;
723 ch->dma.work_map = NULL;
724 ch->dma.work = NULL;
725 }
726 if (ch->dma.work_tag) {
727 bus_dma_tag_destroy(ch->dma.work_tag);
728 ch->dma.work_tag = NULL;
729 }
730 }
731
732 static void
siis_slotsalloc(device_t dev)733 siis_slotsalloc(device_t dev)
734 {
735 struct siis_channel *ch = device_get_softc(dev);
736 int i;
737
738 /* Alloc and setup command/dma slots */
739 bzero(ch->slot, sizeof(ch->slot));
740 for (i = 0; i < SIIS_MAX_SLOTS; i++) {
741 struct siis_slot *slot = &ch->slot[i];
742
743 slot->dev = dev;
744 slot->slot = i;
745 slot->state = SIIS_SLOT_EMPTY;
746 slot->ccb = NULL;
747 callout_init_mtx(&slot->timeout, &ch->mtx, 0);
748
749 if (bus_dmamap_create(ch->dma.data_tag, 0, &slot->dma.data_map))
750 device_printf(ch->dev, "FAILURE - create data_map\n");
751 }
752 }
753
754 static void
siis_slotsfree(device_t dev)755 siis_slotsfree(device_t dev)
756 {
757 struct siis_channel *ch = device_get_softc(dev);
758 int i;
759
760 /* Free all dma slots */
761 for (i = 0; i < SIIS_MAX_SLOTS; i++) {
762 struct siis_slot *slot = &ch->slot[i];
763
764 callout_drain(&slot->timeout);
765 if (slot->dma.data_map) {
766 bus_dmamap_destroy(ch->dma.data_tag, slot->dma.data_map);
767 slot->dma.data_map = NULL;
768 }
769 }
770 }
771
772 static void
siis_notify_events(device_t dev)773 siis_notify_events(device_t dev)
774 {
775 struct siis_channel *ch = device_get_softc(dev);
776 struct cam_path *dpath;
777 u_int32_t status;
778 int i;
779
780 if (ch->quirks & SIIS_Q_SNTF) {
781 status = ATA_INL(ch->r_mem, SIIS_P_SNTF);
782 ATA_OUTL(ch->r_mem, SIIS_P_SNTF, status);
783 } else {
784 /*
785 * Without SNTF we have no idea which device sent notification.
786 * If PMP is connected, assume it, else - device.
787 */
788 status = (ch->pm_present) ? 0x8000 : 0x0001;
789 }
790 if (bootverbose)
791 device_printf(dev, "SNTF 0x%04x\n", status);
792 for (i = 0; i < 16; i++) {
793 if ((status & (1 << i)) == 0)
794 continue;
795 if (xpt_create_path(&dpath, NULL,
796 xpt_path_path_id(ch->path), i, 0) == CAM_REQ_CMP) {
797 xpt_async(AC_SCSI_AEN, dpath, NULL);
798 xpt_free_path(dpath);
799 }
800 }
801
802 }
803
804 static void
siis_phy_check_events(device_t dev)805 siis_phy_check_events(device_t dev)
806 {
807 struct siis_channel *ch = device_get_softc(dev);
808
809 /* If we have a connection event, deal with it */
810 if (ch->pm_level == 0) {
811 u_int32_t status = ATA_INL(ch->r_mem, SIIS_P_SSTS);
812 union ccb *ccb;
813
814 if (bootverbose) {
815 if (((status & ATA_SS_DET_MASK) == ATA_SS_DET_PHY_ONLINE) &&
816 ((status & ATA_SS_SPD_MASK) != ATA_SS_SPD_NO_SPEED) &&
817 ((status & ATA_SS_IPM_MASK) == ATA_SS_IPM_ACTIVE)) {
818 device_printf(dev, "CONNECT requested\n");
819 } else
820 device_printf(dev, "DISCONNECT requested\n");
821 }
822 siis_reset(dev);
823 if ((ccb = xpt_alloc_ccb_nowait()) == NULL)
824 return;
825 if (xpt_create_path(&ccb->ccb_h.path, NULL,
826 cam_sim_path(ch->sim),
827 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
828 xpt_free_ccb(ccb);
829 return;
830 }
831 xpt_rescan(ccb);
832 }
833 }
834
835 static void
siis_ch_intr_locked(void * data)836 siis_ch_intr_locked(void *data)
837 {
838 device_t dev = (device_t)data;
839 struct siis_channel *ch = device_get_softc(dev);
840
841 mtx_lock(&ch->mtx);
842 siis_ch_intr(data);
843 mtx_unlock(&ch->mtx);
844 }
845
846 static void
siis_ch_intr(void * data)847 siis_ch_intr(void *data)
848 {
849 device_t dev = (device_t)data;
850 struct siis_channel *ch = device_get_softc(dev);
851 uint32_t istatus, sstatus, ctx, estatus, ok, err = 0;
852 enum siis_err_type et;
853 int i, ccs, port, tslots;
854
855 mtx_assert(&ch->mtx, MA_OWNED);
856 /* Read command statuses. */
857 sstatus = ATA_INL(ch->r_mem, SIIS_P_SS);
858 ok = ch->rslots & ~sstatus;
859 /* Complete all successfull commands. */
860 for (i = 0; i < SIIS_MAX_SLOTS; i++) {
861 if ((ok >> i) & 1)
862 siis_end_transaction(&ch->slot[i], SIIS_ERR_NONE);
863 }
864 /* Do we have any other events? */
865 if ((sstatus & SIIS_P_SS_ATTN) == 0)
866 return;
867 /* Read and clear interrupt statuses. */
868 istatus = ATA_INL(ch->r_mem, SIIS_P_IS) &
869 (0xFFFF & ~SIIS_P_IX_COMMCOMP);
870 ATA_OUTL(ch->r_mem, SIIS_P_IS, istatus);
871 /* Process PHY events */
872 if (istatus & SIIS_P_IX_PHYRDYCHG)
873 siis_phy_check_events(dev);
874 /* Process NOTIFY events */
875 if (istatus & SIIS_P_IX_SDBN)
876 siis_notify_events(dev);
877 /* Process command errors */
878 if (istatus & SIIS_P_IX_COMMERR) {
879 estatus = ATA_INL(ch->r_mem, SIIS_P_CMDERR);
880 ctx = ATA_INL(ch->r_mem, SIIS_P_CTX);
881 ccs = (ctx & SIIS_P_CTX_SLOT) >> SIIS_P_CTX_SLOT_SHIFT;
882 port = (ctx & SIIS_P_CTX_PMP) >> SIIS_P_CTX_PMP_SHIFT;
883 err = ch->rslots & sstatus;
884 //device_printf(dev, "%s ERROR ss %08x is %08x rs %08x es %d act %d port %d serr %08x\n",
885 // __func__, sstatus, istatus, ch->rslots, estatus, ccs, port,
886 // ATA_INL(ch->r_mem, SIIS_P_SERR));
887
888 if (!ch->recoverycmd && !ch->recovery) {
889 xpt_freeze_simq(ch->sim, ch->numrslots);
890 ch->recovery = 1;
891 }
892 if (ch->frozen) {
893 union ccb *fccb = ch->frozen;
894 ch->frozen = NULL;
895 fccb->ccb_h.status &= ~CAM_STATUS_MASK;
896 fccb->ccb_h.status |= CAM_REQUEUE_REQ | CAM_RELEASE_SIMQ;
897 if (!(fccb->ccb_h.status & CAM_DEV_QFRZN)) {
898 xpt_freeze_devq(fccb->ccb_h.path, 1);
899 fccb->ccb_h.status |= CAM_DEV_QFRZN;
900 }
901 xpt_done(fccb);
902 }
903 if (estatus == SIIS_P_CMDERR_DEV ||
904 estatus == SIIS_P_CMDERR_SDB ||
905 estatus == SIIS_P_CMDERR_DATAFIS) {
906 tslots = ch->numtslots[port];
907 for (i = 0; i < SIIS_MAX_SLOTS; i++) {
908 /* XXX: requests in loading state. */
909 if (((ch->rslots >> i) & 1) == 0)
910 continue;
911 if (ch->slot[i].ccb->ccb_h.target_id != port)
912 continue;
913 if (tslots == 0) {
914 /* Untagged operation. */
915 if (i == ccs)
916 et = SIIS_ERR_TFE;
917 else
918 et = SIIS_ERR_INNOCENT;
919 } else {
920 /* Tagged operation. */
921 et = SIIS_ERR_NCQ;
922 }
923 siis_end_transaction(&ch->slot[i], et);
924 }
925 /*
926 * We can't reinit port if there are some other
927 * commands active, use resume to complete them.
928 */
929 if (ch->rslots != 0 && !ch->recoverycmd)
930 ATA_OUTL(ch->r_mem, SIIS_P_CTLSET, SIIS_P_CTL_RESUME);
931 } else {
932 if (estatus == SIIS_P_CMDERR_SENDFIS ||
933 estatus == SIIS_P_CMDERR_INCSTATE ||
934 estatus == SIIS_P_CMDERR_PPE ||
935 estatus == SIIS_P_CMDERR_SERVICE) {
936 et = SIIS_ERR_SATA;
937 } else
938 et = SIIS_ERR_INVALID;
939 for (i = 0; i < SIIS_MAX_SLOTS; i++) {
940 /* XXX: requests in loading state. */
941 if (((ch->rslots >> i) & 1) == 0)
942 continue;
943 siis_end_transaction(&ch->slot[i], et);
944 }
945 }
946 }
947 }
948
949 /* Must be called with channel locked. */
950 static int
siis_check_collision(device_t dev,union ccb * ccb)951 siis_check_collision(device_t dev, union ccb *ccb)
952 {
953 struct siis_channel *ch = device_get_softc(dev);
954
955 mtx_assert(&ch->mtx, MA_OWNED);
956 if ((ccb->ccb_h.func_code == XPT_ATA_IO) &&
957 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) {
958 /* Tagged command while we have no supported tag free. */
959 if (((~ch->oslots) & (0x7fffffff >> (31 -
960 ch->curr[ccb->ccb_h.target_id].tags))) == 0)
961 return (1);
962 }
963 if ((ccb->ccb_h.func_code == XPT_ATA_IO) &&
964 (ccb->ataio.cmd.flags & (CAM_ATAIO_CONTROL | CAM_ATAIO_NEEDRESULT))) {
965 /* Atomic command while anything active. */
966 if (ch->numrslots != 0)
967 return (1);
968 }
969 /* We have some atomic command running. */
970 if (ch->aslots != 0)
971 return (1);
972 return (0);
973 }
974
975 /* Must be called with channel locked. */
976 static void
siis_begin_transaction(device_t dev,union ccb * ccb)977 siis_begin_transaction(device_t dev, union ccb *ccb)
978 {
979 struct siis_channel *ch = device_get_softc(dev);
980 struct siis_slot *slot;
981 int tag, tags;
982
983 mtx_assert(&ch->mtx, MA_OWNED);
984 /* Choose empty slot. */
985 tags = SIIS_MAX_SLOTS;
986 if ((ccb->ccb_h.func_code == XPT_ATA_IO) &&
987 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA))
988 tags = ch->curr[ccb->ccb_h.target_id].tags;
989 tag = fls((~ch->oslots) & (0x7fffffff >> (31 - tags))) - 1;
990 /* Occupy chosen slot. */
991 slot = &ch->slot[tag];
992 slot->ccb = ccb;
993 /* Update channel stats. */
994 ch->oslots |= (1 << slot->slot);
995 ch->numrslots++;
996 if ((ccb->ccb_h.func_code == XPT_ATA_IO) &&
997 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) {
998 ch->numtslots[ccb->ccb_h.target_id]++;
999 }
1000 if ((ccb->ccb_h.func_code == XPT_ATA_IO) &&
1001 (ccb->ataio.cmd.flags & (CAM_ATAIO_CONTROL | CAM_ATAIO_NEEDRESULT)))
1002 ch->aslots |= (1 << slot->slot);
1003 slot->dma.nsegs = 0;
1004 /* If request moves data, setup and load SG list */
1005 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
1006 slot->state = SIIS_SLOT_LOADING;
1007 bus_dmamap_load_ccb(ch->dma.data_tag, slot->dma.data_map,
1008 ccb, siis_dmasetprd, slot, 0);
1009 } else
1010 siis_execute_transaction(slot);
1011 }
1012
1013 /* Locked by busdma engine. */
1014 static void
siis_dmasetprd(void * arg,bus_dma_segment_t * segs,int nsegs,int error)1015 siis_dmasetprd(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
1016 {
1017 struct siis_slot *slot = arg;
1018 struct siis_channel *ch = device_get_softc(slot->dev);
1019 struct siis_cmd *ctp;
1020 struct siis_dma_prd *prd;
1021 int i;
1022
1023 mtx_assert(&ch->mtx, MA_OWNED);
1024 if (error) {
1025 device_printf(slot->dev, "DMA load error\n");
1026 if (!ch->recoverycmd)
1027 xpt_freeze_simq(ch->sim, 1);
1028 siis_end_transaction(slot, SIIS_ERR_INVALID);
1029 return;
1030 }
1031 KASSERT(nsegs <= SIIS_SG_ENTRIES, ("too many DMA segment entries\n"));
1032 slot->dma.nsegs = nsegs;
1033 if (nsegs != 0) {
1034 /* Get a piece of the workspace for this request */
1035 ctp = (struct siis_cmd *)(ch->dma.work + SIIS_CT_OFFSET +
1036 (SIIS_CT_SIZE * slot->slot));
1037 /* Fill S/G table */
1038 if (slot->ccb->ccb_h.func_code == XPT_ATA_IO)
1039 prd = &ctp->u.ata.prd[0];
1040 else
1041 prd = &ctp->u.atapi.prd[0];
1042 for (i = 0; i < nsegs; i++) {
1043 prd[i].dba = htole64(segs[i].ds_addr);
1044 prd[i].dbc = htole32(segs[i].ds_len);
1045 prd[i].control = 0;
1046 }
1047 prd[nsegs - 1].control = htole32(SIIS_PRD_TRM);
1048 bus_dmamap_sync(ch->dma.data_tag, slot->dma.data_map,
1049 ((slot->ccb->ccb_h.flags & CAM_DIR_IN) ?
1050 BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE));
1051 }
1052 siis_execute_transaction(slot);
1053 }
1054
1055 /* Must be called with channel locked. */
1056 static void
siis_execute_transaction(struct siis_slot * slot)1057 siis_execute_transaction(struct siis_slot *slot)
1058 {
1059 device_t dev = slot->dev;
1060 struct siis_channel *ch = device_get_softc(dev);
1061 struct siis_cmd *ctp;
1062 union ccb *ccb = slot->ccb;
1063 u_int64_t prb_bus;
1064
1065 mtx_assert(&ch->mtx, MA_OWNED);
1066 /* Get a piece of the workspace for this request */
1067 ctp = (struct siis_cmd *)
1068 (ch->dma.work + SIIS_CT_OFFSET + (SIIS_CT_SIZE * slot->slot));
1069 ctp->control = 0;
1070 ctp->protocol_override = 0;
1071 ctp->transfer_count = 0;
1072 /* Special handling for Soft Reset command. */
1073 if (ccb->ccb_h.func_code == XPT_ATA_IO) {
1074 if (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) {
1075 ctp->control |= htole16(SIIS_PRB_SOFT_RESET);
1076 } else {
1077 ctp->control |= htole16(SIIS_PRB_PROTOCOL_OVERRIDE);
1078 if (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA) {
1079 ctp->protocol_override |=
1080 htole16(SIIS_PRB_PROTO_NCQ);
1081 }
1082 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1083 ctp->protocol_override |=
1084 htole16(SIIS_PRB_PROTO_READ);
1085 } else
1086 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
1087 ctp->protocol_override |=
1088 htole16(SIIS_PRB_PROTO_WRITE);
1089 }
1090 }
1091 } else if (ccb->ccb_h.func_code == XPT_SCSI_IO) {
1092 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
1093 ctp->control |= htole16(SIIS_PRB_PACKET_READ);
1094 else
1095 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT)
1096 ctp->control |= htole16(SIIS_PRB_PACKET_WRITE);
1097 }
1098 /* Special handling for Soft Reset command. */
1099 if ((ccb->ccb_h.func_code == XPT_ATA_IO) &&
1100 (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) &&
1101 (ccb->ataio.cmd.control & ATA_A_RESET)) {
1102 /* Kick controller into sane state */
1103 siis_portinit(dev);
1104 }
1105 /* Setup the FIS for this request */
1106 if (!siis_setup_fis(dev, ctp, ccb, slot->slot)) {
1107 device_printf(ch->dev, "Setting up SATA FIS failed\n");
1108 if (!ch->recoverycmd)
1109 xpt_freeze_simq(ch->sim, 1);
1110 siis_end_transaction(slot, SIIS_ERR_INVALID);
1111 return;
1112 }
1113 bus_dmamap_sync(ch->dma.work_tag, ch->dma.work_map,
1114 BUS_DMASYNC_PREWRITE);
1115 /* Issue command to the controller. */
1116 slot->state = SIIS_SLOT_RUNNING;
1117 ch->rslots |= (1 << slot->slot);
1118 prb_bus = ch->dma.work_bus +
1119 SIIS_CT_OFFSET + (SIIS_CT_SIZE * slot->slot);
1120 ATA_OUTL(ch->r_mem, SIIS_P_CACTL(slot->slot), prb_bus);
1121 ATA_OUTL(ch->r_mem, SIIS_P_CACTH(slot->slot), prb_bus >> 32);
1122 /* Start command execution timeout */
1123 callout_reset_sbt(&slot->timeout, SBT_1MS * ccb->ccb_h.timeout, 0,
1124 (timeout_t*)siis_timeout, slot, 0);
1125 return;
1126 }
1127
1128 /* Must be called with channel locked. */
1129 static void
siis_process_timeout(device_t dev)1130 siis_process_timeout(device_t dev)
1131 {
1132 struct siis_channel *ch = device_get_softc(dev);
1133 int i;
1134
1135 mtx_assert(&ch->mtx, MA_OWNED);
1136 if (!ch->recoverycmd && !ch->recovery) {
1137 xpt_freeze_simq(ch->sim, ch->numrslots);
1138 ch->recovery = 1;
1139 }
1140 /* Handle the rest of commands. */
1141 for (i = 0; i < SIIS_MAX_SLOTS; i++) {
1142 /* Do we have a running request on slot? */
1143 if (ch->slot[i].state < SIIS_SLOT_RUNNING)
1144 continue;
1145 siis_end_transaction(&ch->slot[i], SIIS_ERR_TIMEOUT);
1146 }
1147 }
1148
1149 /* Must be called with channel locked. */
1150 static void
siis_rearm_timeout(device_t dev)1151 siis_rearm_timeout(device_t dev)
1152 {
1153 struct siis_channel *ch = device_get_softc(dev);
1154 int i;
1155
1156 mtx_assert(&ch->mtx, MA_OWNED);
1157 for (i = 0; i < SIIS_MAX_SLOTS; i++) {
1158 struct siis_slot *slot = &ch->slot[i];
1159
1160 /* Do we have a running request on slot? */
1161 if (slot->state < SIIS_SLOT_RUNNING)
1162 continue;
1163 if ((ch->toslots & (1 << i)) == 0)
1164 continue;
1165 callout_reset_sbt(&slot->timeout,
1166 SBT_1MS * slot->ccb->ccb_h.timeout, 0,
1167 (timeout_t*)siis_timeout, slot, 0);
1168 }
1169 }
1170
1171 /* Locked by callout mechanism. */
1172 static void
siis_timeout(struct siis_slot * slot)1173 siis_timeout(struct siis_slot *slot)
1174 {
1175 device_t dev = slot->dev;
1176 struct siis_channel *ch = device_get_softc(dev);
1177 union ccb *ccb = slot->ccb;
1178
1179 mtx_assert(&ch->mtx, MA_OWNED);
1180 /* Check for stale timeout. */
1181 if (slot->state < SIIS_SLOT_RUNNING)
1182 return;
1183
1184 /* Handle soft-reset timeouts without doing hard-reset. */
1185 if ((ccb->ccb_h.func_code == XPT_ATA_IO) &&
1186 (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) &&
1187 (ccb->ataio.cmd.control & ATA_A_RESET)) {
1188 xpt_freeze_simq(ch->sim, ch->numrslots);
1189 siis_end_transaction(slot, SIIS_ERR_TFE);
1190 return;
1191 }
1192
1193 device_printf(dev, "Timeout on slot %d\n", slot->slot);
1194 device_printf(dev, "%s is %08x ss %08x rs %08x es %08x sts %08x serr %08x\n",
1195 __func__, ATA_INL(ch->r_mem, SIIS_P_IS),
1196 ATA_INL(ch->r_mem, SIIS_P_SS), ch->rslots,
1197 ATA_INL(ch->r_mem, SIIS_P_CMDERR), ATA_INL(ch->r_mem, SIIS_P_STS),
1198 ATA_INL(ch->r_mem, SIIS_P_SERR));
1199
1200 if (ch->toslots == 0)
1201 xpt_freeze_simq(ch->sim, 1);
1202 ch->toslots |= (1 << slot->slot);
1203 if ((ch->rslots & ~ch->toslots) == 0)
1204 siis_process_timeout(dev);
1205 else
1206 device_printf(dev, " ... waiting for slots %08x\n",
1207 ch->rslots & ~ch->toslots);
1208 }
1209
1210 /* Must be called with channel locked. */
1211 static void
siis_end_transaction(struct siis_slot * slot,enum siis_err_type et)1212 siis_end_transaction(struct siis_slot *slot, enum siis_err_type et)
1213 {
1214 device_t dev = slot->dev;
1215 struct siis_channel *ch = device_get_softc(dev);
1216 union ccb *ccb = slot->ccb;
1217 int lastto;
1218
1219 mtx_assert(&ch->mtx, MA_OWNED);
1220 bus_dmamap_sync(ch->dma.work_tag, ch->dma.work_map,
1221 BUS_DMASYNC_POSTWRITE);
1222 /* Read result registers to the result struct
1223 * May be incorrect if several commands finished same time,
1224 * so read only when sure or have to.
1225 */
1226 if (ccb->ccb_h.func_code == XPT_ATA_IO) {
1227 struct ata_res *res = &ccb->ataio.res;
1228 if ((et == SIIS_ERR_TFE) ||
1229 (ccb->ataio.cmd.flags & CAM_ATAIO_NEEDRESULT)) {
1230 int offs = SIIS_P_LRAM_SLOT(slot->slot) + 8;
1231
1232 res->status = ATA_INB(ch->r_mem, offs + 2);
1233 res->error = ATA_INB(ch->r_mem, offs + 3);
1234 res->lba_low = ATA_INB(ch->r_mem, offs + 4);
1235 res->lba_mid = ATA_INB(ch->r_mem, offs + 5);
1236 res->lba_high = ATA_INB(ch->r_mem, offs + 6);
1237 res->device = ATA_INB(ch->r_mem, offs + 7);
1238 res->lba_low_exp = ATA_INB(ch->r_mem, offs + 8);
1239 res->lba_mid_exp = ATA_INB(ch->r_mem, offs + 9);
1240 res->lba_high_exp = ATA_INB(ch->r_mem, offs + 10);
1241 res->sector_count = ATA_INB(ch->r_mem, offs + 12);
1242 res->sector_count_exp = ATA_INB(ch->r_mem, offs + 13);
1243 } else
1244 bzero(res, sizeof(*res));
1245 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN &&
1246 ch->numrslots == 1) {
1247 ccb->ataio.resid = ccb->ataio.dxfer_len -
1248 ATA_INL(ch->r_mem, SIIS_P_LRAM_SLOT(slot->slot) + 4);
1249 }
1250 } else {
1251 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN &&
1252 ch->numrslots == 1) {
1253 ccb->csio.resid = ccb->csio.dxfer_len -
1254 ATA_INL(ch->r_mem, SIIS_P_LRAM_SLOT(slot->slot) + 4);
1255 }
1256 }
1257 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
1258 bus_dmamap_sync(ch->dma.data_tag, slot->dma.data_map,
1259 (ccb->ccb_h.flags & CAM_DIR_IN) ?
1260 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE);
1261 bus_dmamap_unload(ch->dma.data_tag, slot->dma.data_map);
1262 }
1263 /* Set proper result status. */
1264 if (et != SIIS_ERR_NONE || ch->recovery) {
1265 ch->eslots |= (1 << slot->slot);
1266 ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
1267 }
1268 /* In case of error, freeze device for proper recovery. */
1269 if (et != SIIS_ERR_NONE && (!ch->recoverycmd) &&
1270 !(ccb->ccb_h.status & CAM_DEV_QFRZN)) {
1271 xpt_freeze_devq(ccb->ccb_h.path, 1);
1272 ccb->ccb_h.status |= CAM_DEV_QFRZN;
1273 }
1274 ccb->ccb_h.status &= ~CAM_STATUS_MASK;
1275 switch (et) {
1276 case SIIS_ERR_NONE:
1277 ccb->ccb_h.status |= CAM_REQ_CMP;
1278 if (ccb->ccb_h.func_code == XPT_SCSI_IO)
1279 ccb->csio.scsi_status = SCSI_STATUS_OK;
1280 break;
1281 case SIIS_ERR_INVALID:
1282 ch->fatalerr = 1;
1283 ccb->ccb_h.status |= CAM_REQ_INVALID;
1284 break;
1285 case SIIS_ERR_INNOCENT:
1286 ccb->ccb_h.status |= CAM_REQUEUE_REQ;
1287 break;
1288 case SIIS_ERR_TFE:
1289 case SIIS_ERR_NCQ:
1290 if (ccb->ccb_h.func_code == XPT_SCSI_IO) {
1291 ccb->ccb_h.status |= CAM_SCSI_STATUS_ERROR;
1292 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND;
1293 } else {
1294 ccb->ccb_h.status |= CAM_ATA_STATUS_ERROR;
1295 }
1296 break;
1297 case SIIS_ERR_SATA:
1298 ch->fatalerr = 1;
1299 ccb->ccb_h.status |= CAM_UNCOR_PARITY;
1300 break;
1301 case SIIS_ERR_TIMEOUT:
1302 ch->fatalerr = 1;
1303 ccb->ccb_h.status |= CAM_CMD_TIMEOUT;
1304 break;
1305 default:
1306 ccb->ccb_h.status |= CAM_REQ_CMP_ERR;
1307 }
1308 /* Free slot. */
1309 ch->oslots &= ~(1 << slot->slot);
1310 ch->rslots &= ~(1 << slot->slot);
1311 ch->aslots &= ~(1 << slot->slot);
1312 slot->state = SIIS_SLOT_EMPTY;
1313 slot->ccb = NULL;
1314 /* Update channel stats. */
1315 ch->numrslots--;
1316 if ((ccb->ccb_h.func_code == XPT_ATA_IO) &&
1317 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) {
1318 ch->numtslots[ccb->ccb_h.target_id]--;
1319 }
1320 /* Cancel timeout state if request completed normally. */
1321 if (et != SIIS_ERR_TIMEOUT) {
1322 lastto = (ch->toslots == (1 << slot->slot));
1323 ch->toslots &= ~(1 << slot->slot);
1324 if (lastto)
1325 xpt_release_simq(ch->sim, TRUE);
1326 }
1327 /* If it was our READ LOG command - process it. */
1328 if (ccb->ccb_h.recovery_type == RECOVERY_READ_LOG) {
1329 siis_process_read_log(dev, ccb);
1330 /* If it was our REQUEST SENSE command - process it. */
1331 } else if (ccb->ccb_h.recovery_type == RECOVERY_REQUEST_SENSE) {
1332 siis_process_request_sense(dev, ccb);
1333 /* If it was NCQ or ATAPI command error, put result on hold. */
1334 } else if (et == SIIS_ERR_NCQ ||
1335 ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_SCSI_STATUS_ERROR &&
1336 (ccb->ccb_h.flags & CAM_DIS_AUTOSENSE) == 0)) {
1337 ch->hold[slot->slot] = ccb;
1338 ch->numhslots++;
1339 } else
1340 xpt_done(ccb);
1341 /* If we have no other active commands, ... */
1342 if (ch->rslots == 0) {
1343 /* if there were timeouts or fatal error - reset port. */
1344 if (ch->toslots != 0 || ch->fatalerr) {
1345 siis_reset(dev);
1346 } else {
1347 /* if we have slots in error, we can reinit port. */
1348 if (ch->eslots != 0)
1349 siis_portinit(dev);
1350 /* if there commands on hold, we can do recovery. */
1351 if (!ch->recoverycmd && ch->numhslots)
1352 siis_issue_recovery(dev);
1353 }
1354 /* If all the reset of commands are in timeout - abort them. */
1355 } else if ((ch->rslots & ~ch->toslots) == 0 &&
1356 et != SIIS_ERR_TIMEOUT)
1357 siis_rearm_timeout(dev);
1358 /* Unfreeze frozen command. */
1359 if (ch->frozen && !siis_check_collision(dev, ch->frozen)) {
1360 union ccb *fccb = ch->frozen;
1361 ch->frozen = NULL;
1362 siis_begin_transaction(dev, fccb);
1363 xpt_release_simq(ch->sim, TRUE);
1364 }
1365 }
1366
1367 static void
siis_issue_recovery(device_t dev)1368 siis_issue_recovery(device_t dev)
1369 {
1370 struct siis_channel *ch = device_get_softc(dev);
1371 union ccb *ccb;
1372 struct ccb_ataio *ataio;
1373 struct ccb_scsiio *csio;
1374 int i;
1375
1376 /* Find some held command. */
1377 for (i = 0; i < SIIS_MAX_SLOTS; i++) {
1378 if (ch->hold[i])
1379 break;
1380 }
1381 if (i == SIIS_MAX_SLOTS)
1382 return;
1383 ccb = xpt_alloc_ccb_nowait();
1384 if (ccb == NULL) {
1385 device_printf(dev, "Unable to allocate recovery command\n");
1386 completeall:
1387 /* We can't do anything -- complete held commands. */
1388 for (i = 0; i < SIIS_MAX_SLOTS; i++) {
1389 if (ch->hold[i] == NULL)
1390 continue;
1391 ch->hold[i]->ccb_h.status &= ~CAM_STATUS_MASK;
1392 ch->hold[i]->ccb_h.status |= CAM_RESRC_UNAVAIL;
1393 xpt_done(ch->hold[i]);
1394 ch->hold[i] = NULL;
1395 ch->numhslots--;
1396 }
1397 siis_reset(dev);
1398 return;
1399 }
1400 ccb->ccb_h = ch->hold[i]->ccb_h; /* Reuse old header. */
1401 if (ccb->ccb_h.func_code == XPT_ATA_IO) {
1402 /* READ LOG */
1403 ccb->ccb_h.recovery_type = RECOVERY_READ_LOG;
1404 ccb->ccb_h.func_code = XPT_ATA_IO;
1405 ccb->ccb_h.flags = CAM_DIR_IN;
1406 ccb->ccb_h.timeout = 1000; /* 1s should be enough. */
1407 ataio = &ccb->ataio;
1408 ataio->data_ptr = malloc(512, M_SIIS, M_NOWAIT);
1409 if (ataio->data_ptr == NULL) {
1410 xpt_free_ccb(ccb);
1411 device_printf(dev,
1412 "Unable to allocate memory for READ LOG command\n");
1413 goto completeall;
1414 }
1415 ataio->dxfer_len = 512;
1416 bzero(&ataio->cmd, sizeof(ataio->cmd));
1417 ataio->cmd.flags = CAM_ATAIO_48BIT;
1418 ataio->cmd.command = 0x2F; /* READ LOG EXT */
1419 ataio->cmd.sector_count = 1;
1420 ataio->cmd.sector_count_exp = 0;
1421 ataio->cmd.lba_low = 0x10;
1422 ataio->cmd.lba_mid = 0;
1423 ataio->cmd.lba_mid_exp = 0;
1424 } else {
1425 /* REQUEST SENSE */
1426 ccb->ccb_h.recovery_type = RECOVERY_REQUEST_SENSE;
1427 ccb->ccb_h.recovery_slot = i;
1428 ccb->ccb_h.func_code = XPT_SCSI_IO;
1429 ccb->ccb_h.flags = CAM_DIR_IN;
1430 ccb->ccb_h.status = 0;
1431 ccb->ccb_h.timeout = 1000; /* 1s should be enough. */
1432 csio = &ccb->csio;
1433 csio->data_ptr = (void *)&ch->hold[i]->csio.sense_data;
1434 csio->dxfer_len = ch->hold[i]->csio.sense_len;
1435 csio->cdb_len = 6;
1436 bzero(&csio->cdb_io, sizeof(csio->cdb_io));
1437 csio->cdb_io.cdb_bytes[0] = 0x03;
1438 csio->cdb_io.cdb_bytes[4] = csio->dxfer_len;
1439 }
1440 ch->recoverycmd = 1;
1441 siis_begin_transaction(dev, ccb);
1442 }
1443
1444 static void
siis_process_read_log(device_t dev,union ccb * ccb)1445 siis_process_read_log(device_t dev, union ccb *ccb)
1446 {
1447 struct siis_channel *ch = device_get_softc(dev);
1448 uint8_t *data;
1449 struct ata_res *res;
1450 int i;
1451
1452 ch->recoverycmd = 0;
1453 data = ccb->ataio.data_ptr;
1454 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP &&
1455 (data[0] & 0x80) == 0) {
1456 for (i = 0; i < SIIS_MAX_SLOTS; i++) {
1457 if (!ch->hold[i])
1458 continue;
1459 if (ch->hold[i]->ccb_h.target_id != ccb->ccb_h.target_id)
1460 continue;
1461 if ((data[0] & 0x1F) == i) {
1462 res = &ch->hold[i]->ataio.res;
1463 res->status = data[2];
1464 res->error = data[3];
1465 res->lba_low = data[4];
1466 res->lba_mid = data[5];
1467 res->lba_high = data[6];
1468 res->device = data[7];
1469 res->lba_low_exp = data[8];
1470 res->lba_mid_exp = data[9];
1471 res->lba_high_exp = data[10];
1472 res->sector_count = data[12];
1473 res->sector_count_exp = data[13];
1474 } else {
1475 ch->hold[i]->ccb_h.status &= ~CAM_STATUS_MASK;
1476 ch->hold[i]->ccb_h.status |= CAM_REQUEUE_REQ;
1477 }
1478 xpt_done(ch->hold[i]);
1479 ch->hold[i] = NULL;
1480 ch->numhslots--;
1481 }
1482 } else {
1483 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP)
1484 device_printf(dev, "Error while READ LOG EXT\n");
1485 else if ((data[0] & 0x80) == 0) {
1486 device_printf(dev, "Non-queued command error in READ LOG EXT\n");
1487 }
1488 for (i = 0; i < SIIS_MAX_SLOTS; i++) {
1489 if (!ch->hold[i])
1490 continue;
1491 if (ch->hold[i]->ccb_h.target_id != ccb->ccb_h.target_id)
1492 continue;
1493 xpt_done(ch->hold[i]);
1494 ch->hold[i] = NULL;
1495 ch->numhslots--;
1496 }
1497 }
1498 free(ccb->ataio.data_ptr, M_SIIS);
1499 xpt_free_ccb(ccb);
1500 }
1501
1502 static void
siis_process_request_sense(device_t dev,union ccb * ccb)1503 siis_process_request_sense(device_t dev, union ccb *ccb)
1504 {
1505 struct siis_channel *ch = device_get_softc(dev);
1506 int i;
1507
1508 ch->recoverycmd = 0;
1509
1510 i = ccb->ccb_h.recovery_slot;
1511 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
1512 ch->hold[i]->ccb_h.status |= CAM_AUTOSNS_VALID;
1513 } else {
1514 ch->hold[i]->ccb_h.status &= ~CAM_STATUS_MASK;
1515 ch->hold[i]->ccb_h.status |= CAM_AUTOSENSE_FAIL;
1516 }
1517 xpt_done(ch->hold[i]);
1518 ch->hold[i] = NULL;
1519 ch->numhslots--;
1520 xpt_free_ccb(ccb);
1521 }
1522
1523 static void
siis_portinit(device_t dev)1524 siis_portinit(device_t dev)
1525 {
1526 struct siis_channel *ch = device_get_softc(dev);
1527 int i;
1528
1529 ch->eslots = 0;
1530 ch->recovery = 0;
1531 ATA_OUTL(ch->r_mem, SIIS_P_CTLCLR, SIIS_P_CTL_RESUME);
1532 for (i = 0; i < 16; i++) {
1533 ATA_OUTL(ch->r_mem, SIIS_P_PMPSTS(i), 0),
1534 ATA_OUTL(ch->r_mem, SIIS_P_PMPQACT(i), 0);
1535 }
1536 ATA_OUTL(ch->r_mem, SIIS_P_CTLSET, SIIS_P_CTL_PORT_INIT);
1537 siis_wait_ready(dev, 1000);
1538 }
1539
1540 static int
siis_devreset(device_t dev)1541 siis_devreset(device_t dev)
1542 {
1543 struct siis_channel *ch = device_get_softc(dev);
1544 int timeout = 0;
1545 uint32_t val;
1546
1547 ATA_OUTL(ch->r_mem, SIIS_P_CTLSET, SIIS_P_CTL_DEV_RESET);
1548 while (((val = ATA_INL(ch->r_mem, SIIS_P_STS)) &
1549 SIIS_P_CTL_DEV_RESET) != 0) {
1550 DELAY(100);
1551 if (timeout++ > 1000) {
1552 device_printf(dev, "device reset stuck "
1553 "(timeout 100ms) status = %08x\n", val);
1554 return (EBUSY);
1555 }
1556 }
1557 return (0);
1558 }
1559
1560 static int
siis_wait_ready(device_t dev,int t)1561 siis_wait_ready(device_t dev, int t)
1562 {
1563 struct siis_channel *ch = device_get_softc(dev);
1564 int timeout = 0;
1565 uint32_t val;
1566
1567 while (((val = ATA_INL(ch->r_mem, SIIS_P_STS)) &
1568 SIIS_P_CTL_READY) == 0) {
1569 DELAY(1000);
1570 if (timeout++ > t) {
1571 device_printf(dev, "port is not ready (timeout %dms) "
1572 "status = %08x\n", t, val);
1573 return (EBUSY);
1574 }
1575 }
1576 return (0);
1577 }
1578
1579 static void
siis_reset(device_t dev)1580 siis_reset(device_t dev)
1581 {
1582 struct siis_channel *ch = device_get_softc(dev);
1583 int i, retry = 0, sata_rev;
1584 uint32_t val;
1585
1586 xpt_freeze_simq(ch->sim, 1);
1587 if (bootverbose)
1588 device_printf(dev, "SIIS reset...\n");
1589 if (!ch->recoverycmd && !ch->recovery)
1590 xpt_freeze_simq(ch->sim, ch->numrslots);
1591 /* Requeue frozen command. */
1592 if (ch->frozen) {
1593 union ccb *fccb = ch->frozen;
1594 ch->frozen = NULL;
1595 fccb->ccb_h.status &= ~CAM_STATUS_MASK;
1596 fccb->ccb_h.status |= CAM_REQUEUE_REQ | CAM_RELEASE_SIMQ;
1597 if (!(fccb->ccb_h.status & CAM_DEV_QFRZN)) {
1598 xpt_freeze_devq(fccb->ccb_h.path, 1);
1599 fccb->ccb_h.status |= CAM_DEV_QFRZN;
1600 }
1601 xpt_done(fccb);
1602 }
1603 /* Requeue all running commands. */
1604 for (i = 0; i < SIIS_MAX_SLOTS; i++) {
1605 /* Do we have a running request on slot? */
1606 if (ch->slot[i].state < SIIS_SLOT_RUNNING)
1607 continue;
1608 /* XXX; Commands in loading state. */
1609 siis_end_transaction(&ch->slot[i], SIIS_ERR_INNOCENT);
1610 }
1611 /* Finish all held commands as-is. */
1612 for (i = 0; i < SIIS_MAX_SLOTS; i++) {
1613 if (!ch->hold[i])
1614 continue;
1615 xpt_done(ch->hold[i]);
1616 ch->hold[i] = NULL;
1617 ch->numhslots--;
1618 }
1619 if (ch->toslots != 0)
1620 xpt_release_simq(ch->sim, TRUE);
1621 ch->eslots = 0;
1622 ch->recovery = 0;
1623 ch->toslots = 0;
1624 ch->fatalerr = 0;
1625 /* Disable port interrupts */
1626 ATA_OUTL(ch->r_mem, SIIS_P_IECLR, 0x0000FFFF);
1627 /* Set speed limit. */
1628 sata_rev = ch->user[ch->pm_present ? 15 : 0].revision;
1629 if (sata_rev == 1)
1630 val = ATA_SC_SPD_SPEED_GEN1;
1631 else if (sata_rev == 2)
1632 val = ATA_SC_SPD_SPEED_GEN2;
1633 else if (sata_rev == 3)
1634 val = ATA_SC_SPD_SPEED_GEN3;
1635 else
1636 val = 0;
1637 ATA_OUTL(ch->r_mem, SIIS_P_SCTL,
1638 ATA_SC_DET_IDLE | val | ((ch->pm_level > 0) ? 0 :
1639 (ATA_SC_IPM_DIS_PARTIAL | ATA_SC_IPM_DIS_SLUMBER)));
1640 retry:
1641 siis_devreset(dev);
1642 /* Reset and reconnect PHY, */
1643 if (!siis_sata_connect(ch)) {
1644 ch->devices = 0;
1645 /* Enable port interrupts */
1646 ATA_OUTL(ch->r_mem, SIIS_P_IESET, SIIS_P_IX_ENABLED);
1647 if (bootverbose)
1648 device_printf(dev,
1649 "SIIS reset done: phy reset found no device\n");
1650 /* Tell the XPT about the event */
1651 xpt_async(AC_BUS_RESET, ch->path, NULL);
1652 xpt_release_simq(ch->sim, TRUE);
1653 return;
1654 }
1655 /* Wait for port ready status. */
1656 if (siis_wait_ready(dev, 1000)) {
1657 device_printf(dev, "port ready timeout\n");
1658 if (!retry) {
1659 device_printf(dev, "trying full port reset ...\n");
1660 /* Get port to the reset state. */
1661 ATA_OUTL(ch->r_mem, SIIS_P_CTLSET, SIIS_P_CTL_PORT_RESET);
1662 DELAY(10000);
1663 /* Get port out of reset state. */
1664 ATA_OUTL(ch->r_mem, SIIS_P_CTLCLR, SIIS_P_CTL_PORT_RESET);
1665 ATA_OUTL(ch->r_mem, SIIS_P_CTLCLR, SIIS_P_CTL_32BIT);
1666 if (ch->pm_present)
1667 ATA_OUTL(ch->r_mem, SIIS_P_CTLSET, SIIS_P_CTL_PME);
1668 else
1669 ATA_OUTL(ch->r_mem, SIIS_P_CTLCLR, SIIS_P_CTL_PME);
1670 siis_wait_ready(dev, 5000);
1671 retry = 1;
1672 goto retry;
1673 }
1674 }
1675 ch->devices = 1;
1676 /* Enable port interrupts */
1677 ATA_OUTL(ch->r_mem, SIIS_P_IS, 0xFFFFFFFF);
1678 ATA_OUTL(ch->r_mem, SIIS_P_IESET, SIIS_P_IX_ENABLED);
1679 if (bootverbose)
1680 device_printf(dev, "SIIS reset done: devices=%08x\n", ch->devices);
1681 /* Tell the XPT about the event */
1682 xpt_async(AC_BUS_RESET, ch->path, NULL);
1683 xpt_release_simq(ch->sim, TRUE);
1684 }
1685
1686 static int
siis_setup_fis(device_t dev,struct siis_cmd * ctp,union ccb * ccb,int tag)1687 siis_setup_fis(device_t dev, struct siis_cmd *ctp, union ccb *ccb, int tag)
1688 {
1689 struct siis_channel *ch = device_get_softc(dev);
1690 u_int8_t *fis = &ctp->fis[0];
1691
1692 bzero(fis, 24);
1693 fis[0] = 0x27; /* host to device */
1694 fis[1] = (ccb->ccb_h.target_id & 0x0f);
1695 if (ccb->ccb_h.func_code == XPT_SCSI_IO) {
1696 fis[1] |= 0x80;
1697 fis[2] = ATA_PACKET_CMD;
1698 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE &&
1699 ch->curr[ccb->ccb_h.target_id].mode >= ATA_DMA)
1700 fis[3] = ATA_F_DMA;
1701 else {
1702 fis[5] = ccb->csio.dxfer_len;
1703 fis[6] = ccb->csio.dxfer_len >> 8;
1704 }
1705 fis[7] = ATA_D_LBA;
1706 fis[15] = ATA_A_4BIT;
1707 bzero(ctp->u.atapi.ccb, 16);
1708 bcopy((ccb->ccb_h.flags & CAM_CDB_POINTER) ?
1709 ccb->csio.cdb_io.cdb_ptr : ccb->csio.cdb_io.cdb_bytes,
1710 ctp->u.atapi.ccb, ccb->csio.cdb_len);
1711 } else if ((ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) == 0) {
1712 fis[1] |= 0x80;
1713 fis[2] = ccb->ataio.cmd.command;
1714 fis[3] = ccb->ataio.cmd.features;
1715 fis[4] = ccb->ataio.cmd.lba_low;
1716 fis[5] = ccb->ataio.cmd.lba_mid;
1717 fis[6] = ccb->ataio.cmd.lba_high;
1718 fis[7] = ccb->ataio.cmd.device;
1719 fis[8] = ccb->ataio.cmd.lba_low_exp;
1720 fis[9] = ccb->ataio.cmd.lba_mid_exp;
1721 fis[10] = ccb->ataio.cmd.lba_high_exp;
1722 fis[11] = ccb->ataio.cmd.features_exp;
1723 if (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA) {
1724 fis[12] = tag << 3;
1725 fis[13] = 0;
1726 } else {
1727 fis[12] = ccb->ataio.cmd.sector_count;
1728 fis[13] = ccb->ataio.cmd.sector_count_exp;
1729 }
1730 fis[15] = ATA_A_4BIT;
1731 } else {
1732 /* Soft reset. */
1733 }
1734 return (20);
1735 }
1736
1737 static int
siis_sata_connect(struct siis_channel * ch)1738 siis_sata_connect(struct siis_channel *ch)
1739 {
1740 u_int32_t status;
1741 int timeout, found = 0;
1742
1743 /* Wait up to 100ms for "connect well" */
1744 for (timeout = 0; timeout < 1000 ; timeout++) {
1745 status = ATA_INL(ch->r_mem, SIIS_P_SSTS);
1746 if ((status & ATA_SS_DET_MASK) != ATA_SS_DET_NO_DEVICE)
1747 found = 1;
1748 if (((status & ATA_SS_DET_MASK) == ATA_SS_DET_PHY_ONLINE) &&
1749 ((status & ATA_SS_SPD_MASK) != ATA_SS_SPD_NO_SPEED) &&
1750 ((status & ATA_SS_IPM_MASK) == ATA_SS_IPM_ACTIVE))
1751 break;
1752 if ((status & ATA_SS_DET_MASK) == ATA_SS_DET_PHY_OFFLINE) {
1753 if (bootverbose) {
1754 device_printf(ch->dev, "SATA offline status=%08x\n",
1755 status);
1756 }
1757 return (0);
1758 }
1759 if (found == 0 && timeout >= 100)
1760 break;
1761 DELAY(100);
1762 }
1763 if (timeout >= 1000 || !found) {
1764 if (bootverbose) {
1765 device_printf(ch->dev,
1766 "SATA connect timeout time=%dus status=%08x\n",
1767 timeout * 100, status);
1768 }
1769 return (0);
1770 }
1771 if (bootverbose) {
1772 device_printf(ch->dev, "SATA connect time=%dus status=%08x\n",
1773 timeout * 100, status);
1774 }
1775 /* Clear SATA error register */
1776 ATA_OUTL(ch->r_mem, SIIS_P_SERR, 0xffffffff);
1777 return (1);
1778 }
1779
1780 static int
siis_check_ids(device_t dev,union ccb * ccb)1781 siis_check_ids(device_t dev, union ccb *ccb)
1782 {
1783
1784 if (ccb->ccb_h.target_id > 15) {
1785 ccb->ccb_h.status = CAM_TID_INVALID;
1786 xpt_done(ccb);
1787 return (-1);
1788 }
1789 if (ccb->ccb_h.target_lun != 0) {
1790 ccb->ccb_h.status = CAM_LUN_INVALID;
1791 xpt_done(ccb);
1792 return (-1);
1793 }
1794 return (0);
1795 }
1796
1797 static void
siisaction(struct cam_sim * sim,union ccb * ccb)1798 siisaction(struct cam_sim *sim, union ccb *ccb)
1799 {
1800 device_t dev, parent;
1801 struct siis_channel *ch;
1802
1803 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("siisaction func_code=%x\n",
1804 ccb->ccb_h.func_code));
1805
1806 ch = (struct siis_channel *)cam_sim_softc(sim);
1807 dev = ch->dev;
1808 mtx_assert(&ch->mtx, MA_OWNED);
1809 switch (ccb->ccb_h.func_code) {
1810 /* Common cases first */
1811 case XPT_ATA_IO: /* Execute the requested I/O operation */
1812 case XPT_SCSI_IO:
1813 if (siis_check_ids(dev, ccb))
1814 return;
1815 if (ch->devices == 0 ||
1816 (ch->pm_present == 0 &&
1817 ccb->ccb_h.target_id > 0 && ccb->ccb_h.target_id < 15)) {
1818 ccb->ccb_h.status = CAM_SEL_TIMEOUT;
1819 break;
1820 }
1821 ccb->ccb_h.recovery_type = RECOVERY_NONE;
1822 /* Check for command collision. */
1823 if (siis_check_collision(dev, ccb)) {
1824 /* Freeze command. */
1825 ch->frozen = ccb;
1826 /* We have only one frozen slot, so freeze simq also. */
1827 xpt_freeze_simq(ch->sim, 1);
1828 return;
1829 }
1830 siis_begin_transaction(dev, ccb);
1831 return;
1832 case XPT_EN_LUN: /* Enable LUN as a target */
1833 case XPT_TARGET_IO: /* Execute target I/O request */
1834 case XPT_ACCEPT_TARGET_IO: /* Accept Host Target Mode CDB */
1835 case XPT_CONT_TARGET_IO: /* Continue Host Target I/O Connection*/
1836 case XPT_ABORT: /* Abort the specified CCB */
1837 /* XXX Implement */
1838 ccb->ccb_h.status = CAM_REQ_INVALID;
1839 break;
1840 case XPT_SET_TRAN_SETTINGS:
1841 {
1842 struct ccb_trans_settings *cts = &ccb->cts;
1843 struct siis_device *d;
1844
1845 if (siis_check_ids(dev, ccb))
1846 return;
1847 if (cts->type == CTS_TYPE_CURRENT_SETTINGS)
1848 d = &ch->curr[ccb->ccb_h.target_id];
1849 else
1850 d = &ch->user[ccb->ccb_h.target_id];
1851 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_REVISION)
1852 d->revision = cts->xport_specific.sata.revision;
1853 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_MODE)
1854 d->mode = cts->xport_specific.sata.mode;
1855 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_BYTECOUNT)
1856 d->bytecount = min(8192, cts->xport_specific.sata.bytecount);
1857 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_TAGS)
1858 d->tags = min(SIIS_MAX_SLOTS, cts->xport_specific.sata.tags);
1859 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_PM) {
1860 ch->pm_present = cts->xport_specific.sata.pm_present;
1861 if (ch->pm_present)
1862 ATA_OUTL(ch->r_mem, SIIS_P_CTLSET, SIIS_P_CTL_PME);
1863 else
1864 ATA_OUTL(ch->r_mem, SIIS_P_CTLCLR, SIIS_P_CTL_PME);
1865 }
1866 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_TAGS)
1867 d->atapi = cts->xport_specific.sata.atapi;
1868 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_CAPS)
1869 d->caps = cts->xport_specific.sata.caps;
1870 ccb->ccb_h.status = CAM_REQ_CMP;
1871 break;
1872 }
1873 case XPT_GET_TRAN_SETTINGS:
1874 /* Get default/user set transfer settings for the target */
1875 {
1876 struct ccb_trans_settings *cts = &ccb->cts;
1877 struct siis_device *d;
1878 uint32_t status;
1879
1880 if (siis_check_ids(dev, ccb))
1881 return;
1882 if (cts->type == CTS_TYPE_CURRENT_SETTINGS)
1883 d = &ch->curr[ccb->ccb_h.target_id];
1884 else
1885 d = &ch->user[ccb->ccb_h.target_id];
1886 cts->protocol = PROTO_UNSPECIFIED;
1887 cts->protocol_version = PROTO_VERSION_UNSPECIFIED;
1888 cts->transport = XPORT_SATA;
1889 cts->transport_version = XPORT_VERSION_UNSPECIFIED;
1890 cts->proto_specific.valid = 0;
1891 cts->xport_specific.sata.valid = 0;
1892 if (cts->type == CTS_TYPE_CURRENT_SETTINGS &&
1893 (ccb->ccb_h.target_id == 15 ||
1894 (ccb->ccb_h.target_id == 0 && !ch->pm_present))) {
1895 status = ATA_INL(ch->r_mem, SIIS_P_SSTS) & ATA_SS_SPD_MASK;
1896 if (status & 0x0f0) {
1897 cts->xport_specific.sata.revision =
1898 (status & 0x0f0) >> 4;
1899 cts->xport_specific.sata.valid |=
1900 CTS_SATA_VALID_REVISION;
1901 }
1902 cts->xport_specific.sata.caps = d->caps & CTS_SATA_CAPS_D;
1903 if (ch->pm_level)
1904 cts->xport_specific.sata.caps |= CTS_SATA_CAPS_H_PMREQ;
1905 cts->xport_specific.sata.caps |= CTS_SATA_CAPS_H_AN;
1906 cts->xport_specific.sata.caps &=
1907 ch->user[ccb->ccb_h.target_id].caps;
1908 cts->xport_specific.sata.valid |= CTS_SATA_VALID_CAPS;
1909 } else {
1910 cts->xport_specific.sata.revision = d->revision;
1911 cts->xport_specific.sata.valid |= CTS_SATA_VALID_REVISION;
1912 cts->xport_specific.sata.caps = d->caps;
1913 if (cts->type == CTS_TYPE_CURRENT_SETTINGS &&
1914 (ch->quirks & SIIS_Q_SNTF) == 0)
1915 cts->xport_specific.sata.caps &= ~CTS_SATA_CAPS_H_AN;
1916 cts->xport_specific.sata.valid |= CTS_SATA_VALID_CAPS;
1917 }
1918 cts->xport_specific.sata.mode = d->mode;
1919 cts->xport_specific.sata.valid |= CTS_SATA_VALID_MODE;
1920 cts->xport_specific.sata.bytecount = d->bytecount;
1921 cts->xport_specific.sata.valid |= CTS_SATA_VALID_BYTECOUNT;
1922 cts->xport_specific.sata.pm_present = ch->pm_present;
1923 cts->xport_specific.sata.valid |= CTS_SATA_VALID_PM;
1924 cts->xport_specific.sata.tags = d->tags;
1925 cts->xport_specific.sata.valid |= CTS_SATA_VALID_TAGS;
1926 cts->xport_specific.sata.atapi = d->atapi;
1927 cts->xport_specific.sata.valid |= CTS_SATA_VALID_ATAPI;
1928 ccb->ccb_h.status = CAM_REQ_CMP;
1929 break;
1930 }
1931 case XPT_RESET_BUS: /* Reset the specified SCSI bus */
1932 case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */
1933 siis_reset(dev);
1934 ccb->ccb_h.status = CAM_REQ_CMP;
1935 break;
1936 case XPT_TERM_IO: /* Terminate the I/O process */
1937 /* XXX Implement */
1938 ccb->ccb_h.status = CAM_REQ_INVALID;
1939 break;
1940 case XPT_PATH_INQ: /* Path routing inquiry */
1941 {
1942 struct ccb_pathinq *cpi = &ccb->cpi;
1943
1944 parent = device_get_parent(dev);
1945 cpi->version_num = 1; /* XXX??? */
1946 cpi->hba_inquiry = PI_SDTR_ABLE | PI_TAG_ABLE;
1947 cpi->hba_inquiry |= PI_SATAPM;
1948 cpi->target_sprt = 0;
1949 cpi->hba_misc = PIM_SEQSCAN | PIM_UNMAPPED;
1950 cpi->hba_eng_cnt = 0;
1951 cpi->max_target = 15;
1952 cpi->max_lun = 0;
1953 cpi->initiator_id = 0;
1954 cpi->bus_id = cam_sim_bus(sim);
1955 cpi->base_transfer_speed = 150000;
1956 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
1957 strncpy(cpi->hba_vid, "SIIS", HBA_IDLEN);
1958 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
1959 cpi->unit_number = cam_sim_unit(sim);
1960 cpi->transport = XPORT_SATA;
1961 cpi->transport_version = XPORT_VERSION_UNSPECIFIED;
1962 cpi->protocol = PROTO_ATA;
1963 cpi->protocol_version = PROTO_VERSION_UNSPECIFIED;
1964 cpi->maxio = MAXPHYS;
1965 cpi->hba_vendor = pci_get_vendor(parent);
1966 cpi->hba_device = pci_get_device(parent);
1967 cpi->hba_subvendor = pci_get_subvendor(parent);
1968 cpi->hba_subdevice = pci_get_subdevice(parent);
1969 cpi->ccb_h.status = CAM_REQ_CMP;
1970 break;
1971 }
1972 default:
1973 ccb->ccb_h.status = CAM_REQ_INVALID;
1974 break;
1975 }
1976 xpt_done(ccb);
1977 }
1978
1979 static void
siispoll(struct cam_sim * sim)1980 siispoll(struct cam_sim *sim)
1981 {
1982 struct siis_channel *ch = (struct siis_channel *)cam_sim_softc(sim);
1983
1984 siis_ch_intr(ch->dev);
1985 }
1986