1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2009 Alexander Motin <mav@FreeBSD.org>
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 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #include <sys/param.h>
30 #include <sys/module.h>
31 #include <sys/systm.h>
32 #include <sys/kernel.h>
33 #include <sys/ata.h>
34 #include <sys/bus.h>
35 #include <sys/endian.h>
36 #include <sys/malloc.h>
37 #include <sys/lock.h>
38 #include <sys/mutex.h>
39 #include <sys/sbuf.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(void *arg);
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 int i;
124 uint32_t devid = pci_get_devid(dev);
125
126 for (i = 0; siis_ids[i].id != 0; i++) {
127 if (siis_ids[i].id == devid) {
128 device_set_descf(dev, "%s SATA controller",
129 siis_ids[i].name);
130 return (BUS_PROBE_DEFAULT);
131 }
132 }
133 return (ENXIO);
134 }
135
136 static int
siis_attach(device_t dev)137 siis_attach(device_t dev)
138 {
139 struct siis_controller *ctlr = device_get_softc(dev);
140 uint32_t devid = pci_get_devid(dev);
141 device_t child;
142 int error, i, unit;
143
144 ctlr->dev = dev;
145 for (i = 0; siis_ids[i].id != 0; i++) {
146 if (siis_ids[i].id == devid)
147 break;
148 }
149 ctlr->quirks = siis_ids[i].quirks;
150 /* Global memory */
151 ctlr->r_grid = PCIR_BAR(0);
152 if (!(ctlr->r_gmem = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
153 &ctlr->r_grid, RF_ACTIVE)))
154 return (ENXIO);
155 ctlr->gctl = ATA_INL(ctlr->r_gmem, SIIS_GCTL);
156 /* Channels memory */
157 ctlr->r_rid = PCIR_BAR(2);
158 if (!(ctlr->r_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
159 &ctlr->r_rid, RF_ACTIVE)))
160 return (ENXIO);
161 /* Setup our own memory management for channels. */
162 ctlr->sc_iomem.rm_start = rman_get_start(ctlr->r_mem);
163 ctlr->sc_iomem.rm_end = rman_get_end(ctlr->r_mem);
164 ctlr->sc_iomem.rm_type = RMAN_ARRAY;
165 ctlr->sc_iomem.rm_descr = "I/O memory addresses";
166 if ((error = rman_init(&ctlr->sc_iomem)) != 0) {
167 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem);
168 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_grid, ctlr->r_gmem);
169 return (error);
170 }
171 if ((error = rman_manage_region(&ctlr->sc_iomem,
172 rman_get_start(ctlr->r_mem), rman_get_end(ctlr->r_mem))) != 0) {
173 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem);
174 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_grid, ctlr->r_gmem);
175 rman_fini(&ctlr->sc_iomem);
176 return (error);
177 }
178 pci_enable_busmaster(dev);
179 /* Reset controller */
180 siis_resume(dev);
181 /* Number of HW channels */
182 ctlr->channels = siis_ids[i].ports;
183 /* Setup interrupts. */
184 if (siis_setup_interrupt(dev)) {
185 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem);
186 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_grid, ctlr->r_gmem);
187 rman_fini(&ctlr->sc_iomem);
188 return ENXIO;
189 }
190 /* Attach all channels on this controller */
191 for (unit = 0; unit < ctlr->channels; unit++) {
192 child = device_add_child(dev, "siisch", DEVICE_UNIT_ANY);
193 if (child == NULL)
194 device_printf(dev, "failed to add channel device\n");
195 else
196 device_set_ivars(child, (void *)(intptr_t)unit);
197 }
198 bus_attach_children(dev);
199 return 0;
200 }
201
202 static int
siis_detach(device_t dev)203 siis_detach(device_t dev)
204 {
205 struct siis_controller *ctlr = device_get_softc(dev);
206 int error;
207
208 /* Detach & delete all children */
209 error = bus_generic_detach(dev);
210 if (error != 0)
211 return (error);
212
213 /* Free interrupts. */
214 if (ctlr->irq.r_irq) {
215 bus_teardown_intr(dev, ctlr->irq.r_irq,
216 ctlr->irq.handle);
217 bus_release_resource(dev, SYS_RES_IRQ,
218 ctlr->irq.r_irq_rid, ctlr->irq.r_irq);
219 }
220 pci_release_msi(dev);
221 /* Free memory. */
222 rman_fini(&ctlr->sc_iomem);
223 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem);
224 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_grid, ctlr->r_gmem);
225 return (0);
226 }
227
228 static int
siis_suspend(device_t dev)229 siis_suspend(device_t dev)
230 {
231 struct siis_controller *ctlr = device_get_softc(dev);
232
233 bus_generic_suspend(dev);
234 /* Put controller into reset state. */
235 ctlr->gctl |= SIIS_GCTL_GRESET;
236 ATA_OUTL(ctlr->r_gmem, SIIS_GCTL, ctlr->gctl);
237 return 0;
238 }
239
240 static int
siis_resume(device_t dev)241 siis_resume(device_t dev)
242 {
243 struct siis_controller *ctlr = device_get_softc(dev);
244
245 /* Set PCIe max read request size to at least 1024 bytes */
246 if (pci_get_max_read_req(dev) < 1024)
247 pci_set_max_read_req(dev, 1024);
248 /* Put controller into reset state. */
249 ctlr->gctl |= SIIS_GCTL_GRESET;
250 ATA_OUTL(ctlr->r_gmem, SIIS_GCTL, ctlr->gctl);
251 DELAY(10000);
252 /* Get controller out of reset state and enable port interrupts. */
253 ctlr->gctl &= ~(SIIS_GCTL_GRESET | SIIS_GCTL_I2C_IE);
254 ctlr->gctl |= 0x0000000f;
255 ATA_OUTL(ctlr->r_gmem, SIIS_GCTL, ctlr->gctl);
256 return (bus_generic_resume(dev));
257 }
258
259 static int
siis_setup_interrupt(device_t dev)260 siis_setup_interrupt(device_t dev)
261 {
262 struct siis_controller *ctlr = device_get_softc(dev);
263 int msi = ctlr->quirks & SIIS_Q_NOMSI ? 0 : 1;
264
265 /* Process hints. */
266 resource_int_value(device_get_name(dev),
267 device_get_unit(dev), "msi", &msi);
268 if (msi < 0)
269 msi = 0;
270 else if (msi > 0)
271 msi = min(1, pci_msi_count(dev));
272 /* Allocate MSI if needed/present. */
273 if (msi && pci_alloc_msi(dev, &msi) != 0)
274 msi = 0;
275 /* Allocate all IRQs. */
276 ctlr->irq.r_irq_rid = msi ? 1 : 0;
277 if (!(ctlr->irq.r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
278 &ctlr->irq.r_irq_rid, RF_SHAREABLE | RF_ACTIVE))) {
279 device_printf(dev, "unable to map interrupt\n");
280 return ENXIO;
281 }
282 if ((bus_setup_intr(dev, ctlr->irq.r_irq, ATA_INTR_FLAGS, NULL,
283 siis_intr, ctlr, &ctlr->irq.handle))) {
284 /* SOS XXX release r_irq */
285 device_printf(dev, "unable to setup interrupt\n");
286 return ENXIO;
287 }
288 return (0);
289 }
290
291 /*
292 * Common case interrupt handler.
293 */
294 static void
siis_intr(void * data)295 siis_intr(void *data)
296 {
297 struct siis_controller *ctlr = (struct siis_controller *)data;
298 u_int32_t is;
299 void *arg;
300 int unit;
301
302 is = ATA_INL(ctlr->r_gmem, SIIS_IS);
303 for (unit = 0; unit < ctlr->channels; unit++) {
304 if ((is & SIIS_IS_PORT(unit)) != 0 &&
305 (arg = ctlr->interrupt[unit].argument)) {
306 ctlr->interrupt[unit].function(arg);
307 }
308 }
309 /* Acknowledge interrupt, if MSI enabled. */
310 if (ctlr->irq.r_irq_rid) {
311 ATA_OUTL(ctlr->r_gmem, SIIS_GCTL,
312 ctlr->gctl | SIIS_GCTL_MSIACK);
313 }
314 }
315
316 static struct resource *
siis_alloc_resource(device_t dev,device_t child,int type,int * rid,rman_res_t start,rman_res_t end,rman_res_t count,u_int flags)317 siis_alloc_resource(device_t dev, device_t child, int type, int *rid,
318 rman_res_t start, rman_res_t end, rman_res_t count, u_int flags)
319 {
320 struct siis_controller *ctlr = device_get_softc(dev);
321 int unit = ((struct siis_channel *)device_get_softc(child))->unit;
322 struct resource *res = NULL;
323 int offset = unit << 13;
324 rman_res_t st;
325
326 switch (type) {
327 case SYS_RES_MEMORY:
328 st = rman_get_start(ctlr->r_mem);
329 res = rman_reserve_resource(&ctlr->sc_iomem, st + offset,
330 st + offset + 0x2000, 0x2000, RF_ACTIVE, child);
331 if (res) {
332 bus_space_handle_t bsh;
333 bus_space_tag_t bst;
334 bsh = rman_get_bushandle(ctlr->r_mem);
335 bst = rman_get_bustag(ctlr->r_mem);
336 bus_space_subregion(bst, bsh, offset, 0x2000, &bsh);
337 rman_set_bushandle(res, bsh);
338 rman_set_bustag(res, bst);
339 }
340 break;
341 case SYS_RES_IRQ:
342 if (*rid == ATA_IRQ_RID)
343 res = ctlr->irq.r_irq;
344 break;
345 }
346 return (res);
347 }
348
349 static int
siis_release_resource(device_t dev,device_t child,struct resource * r)350 siis_release_resource(device_t dev, device_t child, struct resource *r)
351 {
352
353 switch (rman_get_type(r)) {
354 case SYS_RES_MEMORY:
355 rman_release_resource(r);
356 return (0);
357 case SYS_RES_IRQ:
358 if (rman_get_rid(r) != 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(device_t dev,device_t child,struct sbuf * sb)408 siis_child_location(device_t dev, device_t child, struct sbuf *sb)
409 {
410
411 sbuf_printf(sb, "channel=%d",
412 (int)(intptr_t)device_get_ivars(child));
413 return (0);
414 }
415
416 static bus_dma_tag_t
siis_get_dma_tag(device_t bus,device_t child)417 siis_get_dma_tag(device_t bus, device_t child)
418 {
419
420 return (bus_get_dma_tag(bus));
421 }
422
423 static device_method_t siis_methods[] = {
424 DEVMETHOD(device_probe, siis_probe),
425 DEVMETHOD(device_attach, siis_attach),
426 DEVMETHOD(device_detach, siis_detach),
427 DEVMETHOD(device_suspend, siis_suspend),
428 DEVMETHOD(device_resume, siis_resume),
429 DEVMETHOD(bus_print_child, siis_print_child),
430 DEVMETHOD(bus_alloc_resource, siis_alloc_resource),
431 DEVMETHOD(bus_release_resource, siis_release_resource),
432 DEVMETHOD(bus_setup_intr, siis_setup_intr),
433 DEVMETHOD(bus_teardown_intr,siis_teardown_intr),
434 DEVMETHOD(bus_child_location, siis_child_location),
435 DEVMETHOD(bus_get_dma_tag, siis_get_dma_tag),
436 { 0, 0 }
437 };
438
439 static driver_t siis_driver = {
440 "siis",
441 siis_methods,
442 sizeof(struct siis_controller)
443 };
444
445 DRIVER_MODULE(siis, pci, siis_driver, 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(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 static device_method_t siisch_methods[] = {
629 DEVMETHOD(device_probe, siis_ch_probe),
630 DEVMETHOD(device_attach, siis_ch_attach),
631 DEVMETHOD(device_detach, siis_ch_detach),
632 DEVMETHOD(device_suspend, siis_ch_suspend),
633 DEVMETHOD(device_resume, siis_ch_resume),
634 { 0, 0 }
635 };
636
637 static driver_t siisch_driver = {
638 "siisch",
639 siisch_methods,
640 sizeof(struct siis_channel)
641 };
642
643 DRIVER_MODULE(siisch, siis, siisch_driver, 0, 0);
644
645 static void
siis_ch_led(void * priv,int onoff)646 siis_ch_led(void *priv, int onoff)
647 {
648 device_t dev;
649 struct siis_channel *ch;
650
651 dev = (device_t)priv;
652 ch = device_get_softc(dev);
653
654 if (onoff == 0)
655 ATA_OUTL(ch->r_mem, SIIS_P_CTLCLR, SIIS_P_CTL_LED_ON);
656 else
657 ATA_OUTL(ch->r_mem, SIIS_P_CTLSET, SIIS_P_CTL_LED_ON);
658 }
659
660 struct siis_dc_cb_args {
661 bus_addr_t maddr;
662 int error;
663 };
664
665 static void
siis_dmainit(device_t dev)666 siis_dmainit(device_t dev)
667 {
668 struct siis_channel *ch = device_get_softc(dev);
669 struct siis_dc_cb_args dcba;
670
671 /* Command area. */
672 if (bus_dma_tag_create(bus_get_dma_tag(dev), 1024, 0,
673 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
674 NULL, NULL, SIIS_WORK_SIZE, 1, SIIS_WORK_SIZE,
675 0, NULL, NULL, &ch->dma.work_tag))
676 goto error;
677 if (bus_dmamem_alloc(ch->dma.work_tag, (void **)&ch->dma.work, 0,
678 &ch->dma.work_map))
679 goto error;
680 if (bus_dmamap_load(ch->dma.work_tag, ch->dma.work_map, ch->dma.work,
681 SIIS_WORK_SIZE, siis_dmasetupc_cb, &dcba, 0) || dcba.error) {
682 bus_dmamem_free(ch->dma.work_tag, ch->dma.work, ch->dma.work_map);
683 goto error;
684 }
685 ch->dma.work_bus = dcba.maddr;
686 /* Data area. */
687 if (bus_dma_tag_create(bus_get_dma_tag(dev), 1, 0,
688 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
689 NULL, NULL,
690 SIIS_SG_ENTRIES * PAGE_SIZE, 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->prb_offset = SIIS_PRB_SIZE * i;
747 slot->ccb = NULL;
748 callout_init_mtx(&slot->timeout, &ch->mtx, 0);
749
750 if (bus_dmamap_create(ch->dma.data_tag, 0, &slot->dma.data_map))
751 device_printf(ch->dev, "FAILURE - create data_map\n");
752 }
753 }
754
755 static void
siis_slotsfree(device_t dev)756 siis_slotsfree(device_t dev)
757 {
758 struct siis_channel *ch = device_get_softc(dev);
759 int i;
760
761 /* Free all dma slots */
762 for (i = 0; i < SIIS_MAX_SLOTS; i++) {
763 struct siis_slot *slot = &ch->slot[i];
764
765 callout_drain(&slot->timeout);
766 if (slot->dma.data_map) {
767 bus_dmamap_destroy(ch->dma.data_tag, slot->dma.data_map);
768 slot->dma.data_map = NULL;
769 }
770 }
771 }
772
773 static void
siis_notify_events(device_t dev)774 siis_notify_events(device_t dev)
775 {
776 struct siis_channel *ch = device_get_softc(dev);
777 struct cam_path *dpath;
778 u_int32_t status;
779 int i;
780
781 if (ch->quirks & SIIS_Q_SNTF) {
782 status = ATA_INL(ch->r_mem, SIIS_P_SNTF);
783 ATA_OUTL(ch->r_mem, SIIS_P_SNTF, status);
784 } else {
785 /*
786 * Without SNTF we have no idea which device sent notification.
787 * If PMP is connected, assume it, else - device.
788 */
789 status = (ch->pm_present) ? 0x8000 : 0x0001;
790 }
791 if (bootverbose)
792 device_printf(dev, "SNTF 0x%04x\n", status);
793 for (i = 0; i < 16; i++) {
794 if ((status & (1 << i)) == 0)
795 continue;
796 if (xpt_create_path(&dpath, NULL,
797 xpt_path_path_id(ch->path), i, 0) == CAM_REQ_CMP) {
798 xpt_async(AC_SCSI_AEN, dpath, NULL);
799 xpt_free_path(dpath);
800 }
801 }
802
803 }
804
805 static void
siis_phy_check_events(device_t dev)806 siis_phy_check_events(device_t dev)
807 {
808 struct siis_channel *ch = device_get_softc(dev);
809
810 /* If we have a connection event, deal with it */
811 if (ch->pm_level == 0) {
812 u_int32_t status = ATA_INL(ch->r_mem, SIIS_P_SSTS);
813 union ccb *ccb;
814
815 if (bootverbose) {
816 if (((status & ATA_SS_DET_MASK) == ATA_SS_DET_PHY_ONLINE) &&
817 ((status & ATA_SS_SPD_MASK) != ATA_SS_SPD_NO_SPEED) &&
818 ((status & ATA_SS_IPM_MASK) == ATA_SS_IPM_ACTIVE)) {
819 device_printf(dev, "CONNECT requested\n");
820 } else
821 device_printf(dev, "DISCONNECT requested\n");
822 }
823 siis_reset(dev);
824 if ((ccb = xpt_alloc_ccb_nowait()) == NULL)
825 return;
826 if (xpt_create_path(&ccb->ccb_h.path, NULL,
827 cam_sim_path(ch->sim),
828 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
829 xpt_free_ccb(ccb);
830 return;
831 }
832 xpt_rescan(ccb);
833 }
834 }
835
836 static void
siis_ch_intr_locked(void * data)837 siis_ch_intr_locked(void *data)
838 {
839 device_t dev = (device_t)data;
840 struct siis_channel *ch = device_get_softc(dev);
841
842 mtx_lock(&ch->mtx);
843 siis_ch_intr(data);
844 mtx_unlock(&ch->mtx);
845 }
846
847 static void
siis_ch_intr(void * data)848 siis_ch_intr(void *data)
849 {
850 device_t dev = (device_t)data;
851 struct siis_channel *ch = device_get_softc(dev);
852 uint32_t istatus, sstatus, ctx, estatus, ok;
853 enum siis_err_type et;
854 int i, ccs, port, tslots;
855
856 mtx_assert(&ch->mtx, MA_OWNED);
857 /* Read command statuses. */
858 sstatus = ATA_INL(ch->r_mem, SIIS_P_SS);
859 ok = ch->rslots & ~sstatus;
860 /* Complete all successful commands. */
861 for (i = 0; i < SIIS_MAX_SLOTS; i++) {
862 if ((ok >> i) & 1)
863 siis_end_transaction(&ch->slot[i], SIIS_ERR_NONE);
864 }
865 /* Do we have any other events? */
866 if ((sstatus & SIIS_P_SS_ATTN) == 0)
867 return;
868 /* Read and clear interrupt statuses. */
869 istatus = ATA_INL(ch->r_mem, SIIS_P_IS) &
870 (0xFFFF & ~SIIS_P_IX_COMMCOMP);
871 ATA_OUTL(ch->r_mem, SIIS_P_IS, istatus);
872 /* Process PHY events */
873 if (istatus & SIIS_P_IX_PHYRDYCHG)
874 siis_phy_check_events(dev);
875 /* Process NOTIFY events */
876 if (istatus & SIIS_P_IX_SDBN)
877 siis_notify_events(dev);
878 /* Process command errors */
879 if (istatus & SIIS_P_IX_COMMERR) {
880 estatus = ATA_INL(ch->r_mem, SIIS_P_CMDERR);
881 ctx = ATA_INL(ch->r_mem, SIIS_P_CTX);
882 ccs = (ctx & SIIS_P_CTX_SLOT) >> SIIS_P_CTX_SLOT_SHIFT;
883 port = (ctx & SIIS_P_CTX_PMP) >> SIIS_P_CTX_PMP_SHIFT;
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 + slot->prb_offset);
1036 /* Fill S/G table */
1037 if (slot->ccb->ccb_h.func_code == XPT_ATA_IO)
1038 prd = &ctp->u.ata.prd[0];
1039 else
1040 prd = &ctp->u.atapi.prd[0];
1041 for (i = 0; i < nsegs; i++) {
1042 prd[i].dba = htole64(segs[i].ds_addr);
1043 prd[i].dbc = htole32(segs[i].ds_len);
1044 prd[i].control = 0;
1045 }
1046 prd[nsegs - 1].control = htole32(SIIS_PRD_TRM);
1047 bus_dmamap_sync(ch->dma.data_tag, slot->dma.data_map,
1048 ((slot->ccb->ccb_h.flags & CAM_DIR_IN) ?
1049 BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE));
1050 }
1051 siis_execute_transaction(slot);
1052 }
1053
1054 /* Must be called with channel locked. */
1055 static void
siis_execute_transaction(struct siis_slot * slot)1056 siis_execute_transaction(struct siis_slot *slot)
1057 {
1058 device_t dev = slot->dev;
1059 struct siis_channel *ch = device_get_softc(dev);
1060 struct siis_cmd *ctp;
1061 union ccb *ccb = slot->ccb;
1062 u_int64_t prb_bus;
1063
1064 mtx_assert(&ch->mtx, MA_OWNED);
1065 /* Get a piece of the workspace for this request */
1066 ctp = (struct siis_cmd *)(ch->dma.work + slot->prb_offset);
1067 ctp->control = 0;
1068 ctp->protocol_override = 0;
1069 ctp->transfer_count = 0;
1070 /* Special handling for Soft Reset command. */
1071 if (ccb->ccb_h.func_code == XPT_ATA_IO) {
1072 if (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) {
1073 ctp->control |= htole16(SIIS_PRB_SOFT_RESET);
1074 } else {
1075 ctp->control |= htole16(SIIS_PRB_PROTOCOL_OVERRIDE);
1076 if (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA) {
1077 ctp->protocol_override |=
1078 htole16(SIIS_PRB_PROTO_NCQ);
1079 }
1080 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1081 ctp->protocol_override |=
1082 htole16(SIIS_PRB_PROTO_READ);
1083 } else
1084 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
1085 ctp->protocol_override |=
1086 htole16(SIIS_PRB_PROTO_WRITE);
1087 }
1088 }
1089 } else if (ccb->ccb_h.func_code == XPT_SCSI_IO) {
1090 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
1091 ctp->control |= htole16(SIIS_PRB_PACKET_READ);
1092 else
1093 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT)
1094 ctp->control |= htole16(SIIS_PRB_PACKET_WRITE);
1095 }
1096 /* Special handling for Soft Reset command. */
1097 if ((ccb->ccb_h.func_code == XPT_ATA_IO) &&
1098 (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) &&
1099 (ccb->ataio.cmd.control & ATA_A_RESET)) {
1100 /* Kick controller into sane state */
1101 siis_portinit(dev);
1102 }
1103 /* Setup the FIS for this request */
1104 if (!siis_setup_fis(dev, ctp, ccb, slot->slot)) {
1105 device_printf(ch->dev, "Setting up SATA FIS failed\n");
1106 if (!ch->recoverycmd)
1107 xpt_freeze_simq(ch->sim, 1);
1108 siis_end_transaction(slot, SIIS_ERR_INVALID);
1109 return;
1110 }
1111 bus_dmamap_sync(ch->dma.work_tag, ch->dma.work_map,
1112 BUS_DMASYNC_PREWRITE);
1113 /* Issue command to the controller. */
1114 slot->state = SIIS_SLOT_RUNNING;
1115 ch->rslots |= (1 << slot->slot);
1116 prb_bus = ch->dma.work_bus + slot->prb_offset;
1117 ATA_OUTL(ch->r_mem, SIIS_P_CACTL(slot->slot), prb_bus);
1118 ATA_OUTL(ch->r_mem, SIIS_P_CACTH(slot->slot), prb_bus >> 32);
1119 /* Start command execution timeout */
1120 callout_reset_sbt(&slot->timeout, SBT_1MS * ccb->ccb_h.timeout, 0,
1121 siis_timeout, slot, 0);
1122 return;
1123 }
1124
1125 /* Must be called with channel locked. */
1126 static void
siis_process_timeout(device_t dev)1127 siis_process_timeout(device_t dev)
1128 {
1129 struct siis_channel *ch = device_get_softc(dev);
1130 int i;
1131
1132 mtx_assert(&ch->mtx, MA_OWNED);
1133 if (!ch->recoverycmd && !ch->recovery) {
1134 xpt_freeze_simq(ch->sim, ch->numrslots);
1135 ch->recovery = 1;
1136 }
1137 /* Handle the rest of commands. */
1138 for (i = 0; i < SIIS_MAX_SLOTS; i++) {
1139 /* Do we have a running request on slot? */
1140 if (ch->slot[i].state < SIIS_SLOT_RUNNING)
1141 continue;
1142 siis_end_transaction(&ch->slot[i], SIIS_ERR_TIMEOUT);
1143 }
1144 }
1145
1146 /* Must be called with channel locked. */
1147 static void
siis_rearm_timeout(device_t dev)1148 siis_rearm_timeout(device_t dev)
1149 {
1150 struct siis_channel *ch = device_get_softc(dev);
1151 int i;
1152
1153 mtx_assert(&ch->mtx, MA_OWNED);
1154 for (i = 0; i < SIIS_MAX_SLOTS; i++) {
1155 struct siis_slot *slot = &ch->slot[i];
1156
1157 /* Do we have a running request on slot? */
1158 if (slot->state < SIIS_SLOT_RUNNING)
1159 continue;
1160 if ((ch->toslots & (1 << i)) == 0)
1161 continue;
1162 callout_reset_sbt(&slot->timeout,
1163 SBT_1MS * slot->ccb->ccb_h.timeout, 0,
1164 siis_timeout, slot, 0);
1165 }
1166 }
1167
1168 /* Locked by callout mechanism. */
1169 static void
siis_timeout(void * arg)1170 siis_timeout(void *arg)
1171 {
1172 struct siis_slot *slot = arg;
1173 device_t dev = slot->dev;
1174 struct siis_channel *ch = device_get_softc(dev);
1175 union ccb *ccb = slot->ccb;
1176
1177 mtx_assert(&ch->mtx, MA_OWNED);
1178 /* Check for stale timeout. */
1179 if (slot->state < SIIS_SLOT_RUNNING)
1180 return;
1181
1182 /* Handle soft-reset timeouts without doing hard-reset. */
1183 if ((ccb->ccb_h.func_code == XPT_ATA_IO) &&
1184 (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) &&
1185 (ccb->ataio.cmd.control & ATA_A_RESET)) {
1186 xpt_freeze_simq(ch->sim, ch->numrslots);
1187 siis_end_transaction(slot, SIIS_ERR_TFE);
1188 return;
1189 }
1190
1191 device_printf(dev, "Timeout on slot %d\n", slot->slot);
1192 device_printf(dev, "%s is %08x ss %08x rs %08x es %08x sts %08x serr %08x\n",
1193 __func__, ATA_INL(ch->r_mem, SIIS_P_IS),
1194 ATA_INL(ch->r_mem, SIIS_P_SS), ch->rslots,
1195 ATA_INL(ch->r_mem, SIIS_P_CMDERR), ATA_INL(ch->r_mem, SIIS_P_STS),
1196 ATA_INL(ch->r_mem, SIIS_P_SERR));
1197
1198 if (ch->toslots == 0)
1199 xpt_freeze_simq(ch->sim, 1);
1200 ch->toslots |= (1 << slot->slot);
1201 if ((ch->rslots & ~ch->toslots) == 0)
1202 siis_process_timeout(dev);
1203 else
1204 device_printf(dev, " ... waiting for slots %08x\n",
1205 ch->rslots & ~ch->toslots);
1206 }
1207
1208 /* Must be called with channel locked. */
1209 static void
siis_end_transaction(struct siis_slot * slot,enum siis_err_type et)1210 siis_end_transaction(struct siis_slot *slot, enum siis_err_type et)
1211 {
1212 device_t dev = slot->dev;
1213 struct siis_channel *ch = device_get_softc(dev);
1214 union ccb *ccb = slot->ccb;
1215 int lastto;
1216
1217 mtx_assert(&ch->mtx, MA_OWNED);
1218 bus_dmamap_sync(ch->dma.work_tag, ch->dma.work_map,
1219 BUS_DMASYNC_POSTWRITE);
1220 /* Read result registers to the result struct
1221 * May be incorrect if several commands finished same time,
1222 * so read only when sure or have to.
1223 */
1224 if (ccb->ccb_h.func_code == XPT_ATA_IO) {
1225 struct ata_res *res = &ccb->ataio.res;
1226 if ((et == SIIS_ERR_TFE) ||
1227 (ccb->ataio.cmd.flags & CAM_ATAIO_NEEDRESULT)) {
1228 int offs = SIIS_P_LRAM_SLOT(slot->slot) + 8;
1229
1230 res->status = ATA_INB(ch->r_mem, offs + 2);
1231 res->error = ATA_INB(ch->r_mem, offs + 3);
1232 res->lba_low = ATA_INB(ch->r_mem, offs + 4);
1233 res->lba_mid = ATA_INB(ch->r_mem, offs + 5);
1234 res->lba_high = ATA_INB(ch->r_mem, offs + 6);
1235 res->device = ATA_INB(ch->r_mem, offs + 7);
1236 res->lba_low_exp = ATA_INB(ch->r_mem, offs + 8);
1237 res->lba_mid_exp = ATA_INB(ch->r_mem, offs + 9);
1238 res->lba_high_exp = ATA_INB(ch->r_mem, offs + 10);
1239 res->sector_count = ATA_INB(ch->r_mem, offs + 12);
1240 res->sector_count_exp = ATA_INB(ch->r_mem, offs + 13);
1241 } else
1242 bzero(res, sizeof(*res));
1243 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN &&
1244 ch->numrslots == 1) {
1245 ccb->ataio.resid = ccb->ataio.dxfer_len -
1246 ATA_INL(ch->r_mem, SIIS_P_LRAM_SLOT(slot->slot) + 4);
1247 }
1248 } else {
1249 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN &&
1250 ch->numrslots == 1) {
1251 ccb->csio.resid = ccb->csio.dxfer_len -
1252 ATA_INL(ch->r_mem, SIIS_P_LRAM_SLOT(slot->slot) + 4);
1253 }
1254 }
1255 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
1256 bus_dmamap_sync(ch->dma.data_tag, slot->dma.data_map,
1257 (ccb->ccb_h.flags & CAM_DIR_IN) ?
1258 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE);
1259 bus_dmamap_unload(ch->dma.data_tag, slot->dma.data_map);
1260 }
1261 /* Set proper result status. */
1262 if (et != SIIS_ERR_NONE || ch->recovery) {
1263 ch->eslots |= (1 << slot->slot);
1264 ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
1265 }
1266 /* In case of error, freeze device for proper recovery. */
1267 if (et != SIIS_ERR_NONE && (!ch->recoverycmd) &&
1268 !(ccb->ccb_h.status & CAM_DEV_QFRZN)) {
1269 xpt_freeze_devq(ccb->ccb_h.path, 1);
1270 ccb->ccb_h.status |= CAM_DEV_QFRZN;
1271 }
1272 ccb->ccb_h.status &= ~CAM_STATUS_MASK;
1273 switch (et) {
1274 case SIIS_ERR_NONE:
1275 ccb->ccb_h.status |= CAM_REQ_CMP;
1276 if (ccb->ccb_h.func_code == XPT_SCSI_IO)
1277 ccb->csio.scsi_status = SCSI_STATUS_OK;
1278 break;
1279 case SIIS_ERR_INVALID:
1280 ch->fatalerr = 1;
1281 ccb->ccb_h.status |= CAM_REQ_INVALID;
1282 break;
1283 case SIIS_ERR_INNOCENT:
1284 ccb->ccb_h.status |= CAM_REQUEUE_REQ;
1285 break;
1286 case SIIS_ERR_TFE:
1287 case SIIS_ERR_NCQ:
1288 if (ccb->ccb_h.func_code == XPT_SCSI_IO) {
1289 ccb->ccb_h.status |= CAM_SCSI_STATUS_ERROR;
1290 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND;
1291 } else {
1292 ccb->ccb_h.status |= CAM_ATA_STATUS_ERROR;
1293 }
1294 break;
1295 case SIIS_ERR_SATA:
1296 ch->fatalerr = 1;
1297 ccb->ccb_h.status |= CAM_UNCOR_PARITY;
1298 break;
1299 case SIIS_ERR_TIMEOUT:
1300 ch->fatalerr = 1;
1301 ccb->ccb_h.status |= CAM_CMD_TIMEOUT;
1302 break;
1303 default:
1304 ccb->ccb_h.status |= CAM_REQ_CMP_ERR;
1305 }
1306 /* Free slot. */
1307 ch->oslots &= ~(1 << slot->slot);
1308 ch->rslots &= ~(1 << slot->slot);
1309 ch->aslots &= ~(1 << slot->slot);
1310 slot->state = SIIS_SLOT_EMPTY;
1311 slot->ccb = NULL;
1312 /* Update channel stats. */
1313 ch->numrslots--;
1314 if ((ccb->ccb_h.func_code == XPT_ATA_IO) &&
1315 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) {
1316 ch->numtslots[ccb->ccb_h.target_id]--;
1317 }
1318 /* Cancel timeout state if request completed normally. */
1319 if (et != SIIS_ERR_TIMEOUT) {
1320 lastto = (ch->toslots == (1 << slot->slot));
1321 ch->toslots &= ~(1 << slot->slot);
1322 if (lastto)
1323 xpt_release_simq(ch->sim, TRUE);
1324 }
1325 /* If it was our READ LOG command - process it. */
1326 if (ccb->ccb_h.recovery_type == RECOVERY_READ_LOG) {
1327 siis_process_read_log(dev, ccb);
1328 /* If it was our REQUEST SENSE command - process it. */
1329 } else if (ccb->ccb_h.recovery_type == RECOVERY_REQUEST_SENSE) {
1330 siis_process_request_sense(dev, ccb);
1331 /* If it was NCQ or ATAPI command error, put result on hold. */
1332 } else if (et == SIIS_ERR_NCQ ||
1333 ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_SCSI_STATUS_ERROR &&
1334 (ccb->ccb_h.flags & CAM_DIS_AUTOSENSE) == 0)) {
1335 ch->hold[slot->slot] = ccb;
1336 ch->numhslots++;
1337 } else
1338 xpt_done(ccb);
1339 /* If we have no other active commands, ... */
1340 if (ch->rslots == 0) {
1341 /* if there were timeouts or fatal error - reset port. */
1342 if (ch->toslots != 0 || ch->fatalerr) {
1343 siis_reset(dev);
1344 } else {
1345 /* if we have slots in error, we can reinit port. */
1346 if (ch->eslots != 0)
1347 siis_portinit(dev);
1348 /* if there commands on hold, we can do recovery. */
1349 if (!ch->recoverycmd && ch->numhslots)
1350 siis_issue_recovery(dev);
1351 }
1352 /* If all the reset of commands are in timeout - abort them. */
1353 } else if ((ch->rslots & ~ch->toslots) == 0 &&
1354 et != SIIS_ERR_TIMEOUT)
1355 siis_rearm_timeout(dev);
1356 /* Unfreeze frozen command. */
1357 if (ch->frozen && !siis_check_collision(dev, ch->frozen)) {
1358 union ccb *fccb = ch->frozen;
1359 ch->frozen = NULL;
1360 siis_begin_transaction(dev, fccb);
1361 xpt_release_simq(ch->sim, TRUE);
1362 }
1363 }
1364
1365 static void
siis_issue_recovery(device_t dev)1366 siis_issue_recovery(device_t dev)
1367 {
1368 struct siis_channel *ch = device_get_softc(dev);
1369 union ccb *ccb;
1370 struct ccb_ataio *ataio;
1371 struct ccb_scsiio *csio;
1372 int i;
1373
1374 /* Find some held command. */
1375 for (i = 0; i < SIIS_MAX_SLOTS; i++) {
1376 if (ch->hold[i])
1377 break;
1378 }
1379 if (i == SIIS_MAX_SLOTS)
1380 return;
1381 ccb = xpt_alloc_ccb_nowait();
1382 if (ccb == NULL) {
1383 device_printf(dev, "Unable to allocate recovery command\n");
1384 completeall:
1385 /* We can't do anything -- complete held commands. */
1386 for (i = 0; i < SIIS_MAX_SLOTS; i++) {
1387 if (ch->hold[i] == NULL)
1388 continue;
1389 ch->hold[i]->ccb_h.status &= ~CAM_STATUS_MASK;
1390 ch->hold[i]->ccb_h.status |= CAM_RESRC_UNAVAIL;
1391 xpt_done(ch->hold[i]);
1392 ch->hold[i] = NULL;
1393 ch->numhslots--;
1394 }
1395 siis_reset(dev);
1396 return;
1397 }
1398 xpt_setup_ccb(&ccb->ccb_h, ch->hold[i]->ccb_h.path,
1399 ch->hold[i]->ccb_h.pinfo.priority);
1400 if (ch->hold[i]->ccb_h.func_code == XPT_ATA_IO) {
1401 /* READ LOG */
1402 ccb->ccb_h.recovery_type = RECOVERY_READ_LOG;
1403 ccb->ccb_h.func_code = XPT_ATA_IO;
1404 ccb->ccb_h.flags = CAM_DIR_IN;
1405 ccb->ccb_h.timeout = 1000; /* 1s should be enough. */
1406 ataio = &ccb->ataio;
1407 ataio->data_ptr = malloc(512, M_SIIS, M_NOWAIT);
1408 if (ataio->data_ptr == NULL) {
1409 xpt_free_ccb(ccb);
1410 device_printf(dev,
1411 "Unable to allocate memory for READ LOG command\n");
1412 goto completeall;
1413 }
1414 ataio->dxfer_len = 512;
1415 bzero(&ataio->cmd, sizeof(ataio->cmd));
1416 ataio->cmd.flags = CAM_ATAIO_48BIT;
1417 ataio->cmd.command = 0x2F; /* READ LOG EXT */
1418 ataio->cmd.sector_count = 1;
1419 ataio->cmd.sector_count_exp = 0;
1420 ataio->cmd.lba_low = 0x10;
1421 ataio->cmd.lba_mid = 0;
1422 ataio->cmd.lba_mid_exp = 0;
1423 } else {
1424 /* REQUEST SENSE */
1425 ccb->ccb_h.recovery_type = RECOVERY_REQUEST_SENSE;
1426 ccb->ccb_h.recovery_slot = i;
1427 ccb->ccb_h.func_code = XPT_SCSI_IO;
1428 ccb->ccb_h.flags = CAM_DIR_IN;
1429 ccb->ccb_h.status = 0;
1430 ccb->ccb_h.timeout = 1000; /* 1s should be enough. */
1431 csio = &ccb->csio;
1432 csio->data_ptr = (void *)&ch->hold[i]->csio.sense_data;
1433 csio->dxfer_len = ch->hold[i]->csio.sense_len;
1434 csio->cdb_len = 6;
1435 bzero(&csio->cdb_io, sizeof(csio->cdb_io));
1436 csio->cdb_io.cdb_bytes[0] = 0x03;
1437 csio->cdb_io.cdb_bytes[4] = csio->dxfer_len;
1438 }
1439 ch->recoverycmd = 1;
1440 siis_begin_transaction(dev, ccb);
1441 }
1442
1443 static void
siis_process_read_log(device_t dev,union ccb * ccb)1444 siis_process_read_log(device_t dev, union ccb *ccb)
1445 {
1446 struct siis_channel *ch = device_get_softc(dev);
1447 uint8_t *data;
1448 struct ata_res *res;
1449 int i;
1450
1451 ch->recoverycmd = 0;
1452 data = ccb->ataio.data_ptr;
1453 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP &&
1454 (data[0] & 0x80) == 0) {
1455 for (i = 0; i < SIIS_MAX_SLOTS; i++) {
1456 if (!ch->hold[i])
1457 continue;
1458 if (ch->hold[i]->ccb_h.target_id != ccb->ccb_h.target_id)
1459 continue;
1460 if ((data[0] & 0x1F) == i) {
1461 res = &ch->hold[i]->ataio.res;
1462 res->status = data[2];
1463 res->error = data[3];
1464 res->lba_low = data[4];
1465 res->lba_mid = data[5];
1466 res->lba_high = data[6];
1467 res->device = data[7];
1468 res->lba_low_exp = data[8];
1469 res->lba_mid_exp = data[9];
1470 res->lba_high_exp = data[10];
1471 res->sector_count = data[12];
1472 res->sector_count_exp = data[13];
1473 } else {
1474 ch->hold[i]->ccb_h.status &= ~CAM_STATUS_MASK;
1475 ch->hold[i]->ccb_h.status |= CAM_REQUEUE_REQ;
1476 }
1477 xpt_done(ch->hold[i]);
1478 ch->hold[i] = NULL;
1479 ch->numhslots--;
1480 }
1481 } else {
1482 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP)
1483 device_printf(dev, "Error while READ LOG EXT\n");
1484 else if ((data[0] & 0x80) == 0) {
1485 device_printf(dev, "Non-queued command error in READ LOG EXT\n");
1486 }
1487 for (i = 0; i < SIIS_MAX_SLOTS; i++) {
1488 if (!ch->hold[i])
1489 continue;
1490 if (ch->hold[i]->ccb_h.target_id != ccb->ccb_h.target_id)
1491 continue;
1492 xpt_done(ch->hold[i]);
1493 ch->hold[i] = NULL;
1494 ch->numhslots--;
1495 }
1496 }
1497 free(ccb->ataio.data_ptr, M_SIIS);
1498 xpt_free_ccb(ccb);
1499 }
1500
1501 static void
siis_process_request_sense(device_t dev,union ccb * ccb)1502 siis_process_request_sense(device_t dev, union ccb *ccb)
1503 {
1504 struct siis_channel *ch = device_get_softc(dev);
1505 int i;
1506
1507 ch->recoverycmd = 0;
1508
1509 i = ccb->ccb_h.recovery_slot;
1510 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
1511 ch->hold[i]->ccb_h.status |= CAM_AUTOSNS_VALID;
1512 } else {
1513 ch->hold[i]->ccb_h.status &= ~CAM_STATUS_MASK;
1514 ch->hold[i]->ccb_h.status |= CAM_AUTOSENSE_FAIL;
1515 }
1516 xpt_done(ch->hold[i]);
1517 ch->hold[i] = NULL;
1518 ch->numhslots--;
1519 xpt_free_ccb(ccb);
1520 }
1521
1522 static void
siis_portinit(device_t dev)1523 siis_portinit(device_t dev)
1524 {
1525 struct siis_channel *ch = device_get_softc(dev);
1526 int i;
1527
1528 ch->eslots = 0;
1529 ch->recovery = 0;
1530 ATA_OUTL(ch->r_mem, SIIS_P_CTLCLR, SIIS_P_CTL_RESUME);
1531 for (i = 0; i < 16; i++) {
1532 ATA_OUTL(ch->r_mem, SIIS_P_PMPSTS(i), 0),
1533 ATA_OUTL(ch->r_mem, SIIS_P_PMPQACT(i), 0);
1534 }
1535 ATA_OUTL(ch->r_mem, SIIS_P_CTLSET, SIIS_P_CTL_PORT_INIT);
1536 siis_wait_ready(dev, 1000);
1537 }
1538
1539 static int
siis_devreset(device_t dev)1540 siis_devreset(device_t dev)
1541 {
1542 struct siis_channel *ch = device_get_softc(dev);
1543 int timeout = 0;
1544 uint32_t val;
1545
1546 ATA_OUTL(ch->r_mem, SIIS_P_CTLSET, SIIS_P_CTL_DEV_RESET);
1547 while (((val = ATA_INL(ch->r_mem, SIIS_P_STS)) &
1548 SIIS_P_CTL_DEV_RESET) != 0) {
1549 DELAY(100);
1550 if (timeout++ > 1000) {
1551 device_printf(dev, "device reset stuck "
1552 "(timeout 100ms) status = %08x\n", val);
1553 return (EBUSY);
1554 }
1555 }
1556 return (0);
1557 }
1558
1559 static int
siis_wait_ready(device_t dev,int t)1560 siis_wait_ready(device_t dev, int t)
1561 {
1562 struct siis_channel *ch = device_get_softc(dev);
1563 int timeout = 0;
1564 uint32_t val;
1565
1566 while (((val = ATA_INL(ch->r_mem, SIIS_P_STS)) &
1567 SIIS_P_CTL_READY) == 0) {
1568 DELAY(1000);
1569 if (timeout++ > t) {
1570 device_printf(dev, "port is not ready (timeout %dms) "
1571 "status = %08x\n", t, val);
1572 return (EBUSY);
1573 }
1574 }
1575 return (0);
1576 }
1577
1578 static void
siis_reset(device_t dev)1579 siis_reset(device_t dev)
1580 {
1581 struct siis_channel *ch = device_get_softc(dev);
1582 int i, retry = 0, sata_rev;
1583 uint32_t val;
1584
1585 xpt_freeze_simq(ch->sim, 1);
1586 if (bootverbose)
1587 device_printf(dev, "SIIS reset...\n");
1588 if (!ch->recoverycmd && !ch->recovery)
1589 xpt_freeze_simq(ch->sim, ch->numrslots);
1590 /* Requeue frozen command. */
1591 if (ch->frozen) {
1592 union ccb *fccb = ch->frozen;
1593 ch->frozen = NULL;
1594 fccb->ccb_h.status &= ~CAM_STATUS_MASK;
1595 fccb->ccb_h.status |= CAM_REQUEUE_REQ | CAM_RELEASE_SIMQ;
1596 if (!(fccb->ccb_h.status & CAM_DEV_QFRZN)) {
1597 xpt_freeze_devq(fccb->ccb_h.path, 1);
1598 fccb->ccb_h.status |= CAM_DEV_QFRZN;
1599 }
1600 xpt_done(fccb);
1601 }
1602 /* Requeue all running commands. */
1603 for (i = 0; i < SIIS_MAX_SLOTS; i++) {
1604 /* Do we have a running request on slot? */
1605 if (ch->slot[i].state < SIIS_SLOT_RUNNING)
1606 continue;
1607 /* XXX; Commands in loading state. */
1608 siis_end_transaction(&ch->slot[i], SIIS_ERR_INNOCENT);
1609 }
1610 /* Finish all held commands as-is. */
1611 for (i = 0; i < SIIS_MAX_SLOTS; i++) {
1612 if (!ch->hold[i])
1613 continue;
1614 xpt_done(ch->hold[i]);
1615 ch->hold[i] = NULL;
1616 ch->numhslots--;
1617 }
1618 if (ch->toslots != 0)
1619 xpt_release_simq(ch->sim, TRUE);
1620 ch->eslots = 0;
1621 ch->recovery = 0;
1622 ch->toslots = 0;
1623 ch->fatalerr = 0;
1624 /* Disable port interrupts */
1625 ATA_OUTL(ch->r_mem, SIIS_P_IECLR, 0x0000FFFF);
1626 /* Set speed limit. */
1627 sata_rev = ch->user[ch->pm_present ? 15 : 0].revision;
1628 if (sata_rev == 1)
1629 val = ATA_SC_SPD_SPEED_GEN1;
1630 else if (sata_rev == 2)
1631 val = ATA_SC_SPD_SPEED_GEN2;
1632 else if (sata_rev == 3)
1633 val = ATA_SC_SPD_SPEED_GEN3;
1634 else
1635 val = 0;
1636 ATA_OUTL(ch->r_mem, SIIS_P_SCTL,
1637 ATA_SC_DET_IDLE | val | ((ch->pm_level > 0) ? 0 :
1638 (ATA_SC_IPM_DIS_PARTIAL | ATA_SC_IPM_DIS_SLUMBER)));
1639 retry:
1640 siis_devreset(dev);
1641 /* Reset and reconnect PHY, */
1642 if (!siis_sata_connect(ch)) {
1643 ch->devices = 0;
1644 /* Enable port interrupts */
1645 ATA_OUTL(ch->r_mem, SIIS_P_IESET, SIIS_P_IX_ENABLED);
1646 if (bootverbose)
1647 device_printf(dev,
1648 "SIIS reset done: phy reset found no device\n");
1649 /* Tell the XPT about the event */
1650 xpt_async(AC_BUS_RESET, ch->path, NULL);
1651 xpt_release_simq(ch->sim, TRUE);
1652 return;
1653 }
1654 /* Wait for port ready status. */
1655 if (siis_wait_ready(dev, 1000)) {
1656 device_printf(dev, "port ready timeout\n");
1657 if (!retry) {
1658 device_printf(dev, "trying full port reset ...\n");
1659 /* Get port to the reset state. */
1660 ATA_OUTL(ch->r_mem, SIIS_P_CTLSET, SIIS_P_CTL_PORT_RESET);
1661 DELAY(10000);
1662 /* Get port out of reset state. */
1663 ATA_OUTL(ch->r_mem, SIIS_P_CTLCLR, SIIS_P_CTL_PORT_RESET);
1664 ATA_OUTL(ch->r_mem, SIIS_P_CTLCLR, SIIS_P_CTL_32BIT);
1665 if (ch->pm_present)
1666 ATA_OUTL(ch->r_mem, SIIS_P_CTLSET, SIIS_P_CTL_PME);
1667 else
1668 ATA_OUTL(ch->r_mem, SIIS_P_CTLCLR, SIIS_P_CTL_PME);
1669 siis_wait_ready(dev, 5000);
1670 retry = 1;
1671 goto retry;
1672 }
1673 }
1674 ch->devices = 1;
1675 /* Enable port interrupts */
1676 ATA_OUTL(ch->r_mem, SIIS_P_IS, 0xFFFFFFFF);
1677 ATA_OUTL(ch->r_mem, SIIS_P_IESET, SIIS_P_IX_ENABLED);
1678 if (bootverbose)
1679 device_printf(dev, "SIIS reset done: devices=%08x\n", ch->devices);
1680 /* Tell the XPT about the event */
1681 xpt_async(AC_BUS_RESET, ch->path, NULL);
1682 xpt_release_simq(ch->sim, TRUE);
1683 }
1684
1685 static int
siis_setup_fis(device_t dev,struct siis_cmd * ctp,union ccb * ccb,int tag)1686 siis_setup_fis(device_t dev, struct siis_cmd *ctp, union ccb *ccb, int tag)
1687 {
1688 struct siis_channel *ch = device_get_softc(dev);
1689 u_int8_t *fis = &ctp->fis[0];
1690
1691 bzero(fis, 24);
1692 fis[0] = 0x27; /* host to device */
1693 fis[1] = (ccb->ccb_h.target_id & 0x0f);
1694 if (ccb->ccb_h.func_code == XPT_SCSI_IO) {
1695 fis[1] |= 0x80;
1696 fis[2] = ATA_PACKET_CMD;
1697 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE &&
1698 ch->curr[ccb->ccb_h.target_id].mode >= ATA_DMA)
1699 fis[3] = ATA_F_DMA;
1700 else {
1701 fis[5] = ccb->csio.dxfer_len;
1702 fis[6] = ccb->csio.dxfer_len >> 8;
1703 }
1704 fis[7] = ATA_D_LBA;
1705 fis[15] = ATA_A_4BIT;
1706 bzero(ctp->u.atapi.ccb, 16);
1707 bcopy((ccb->ccb_h.flags & CAM_CDB_POINTER) ?
1708 ccb->csio.cdb_io.cdb_ptr : ccb->csio.cdb_io.cdb_bytes,
1709 ctp->u.atapi.ccb, ccb->csio.cdb_len);
1710 } else if ((ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) == 0) {
1711 fis[1] |= 0x80;
1712 fis[2] = ccb->ataio.cmd.command;
1713 fis[3] = ccb->ataio.cmd.features;
1714 fis[4] = ccb->ataio.cmd.lba_low;
1715 fis[5] = ccb->ataio.cmd.lba_mid;
1716 fis[6] = ccb->ataio.cmd.lba_high;
1717 fis[7] = ccb->ataio.cmd.device;
1718 fis[8] = ccb->ataio.cmd.lba_low_exp;
1719 fis[9] = ccb->ataio.cmd.lba_mid_exp;
1720 fis[10] = ccb->ataio.cmd.lba_high_exp;
1721 fis[11] = ccb->ataio.cmd.features_exp;
1722 fis[12] = ccb->ataio.cmd.sector_count;
1723 if (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA) {
1724 fis[12] &= 0x07;
1725 fis[12] |= tag << 3;
1726 }
1727 fis[13] = ccb->ataio.cmd.sector_count_exp;
1728 if (ccb->ataio.ata_flags & ATA_FLAG_ICC)
1729 fis[14] = ccb->ataio.icc;
1730 fis[15] = ATA_A_4BIT;
1731 if (ccb->ataio.ata_flags & ATA_FLAG_AUX) {
1732 fis[16] = ccb->ataio.aux & 0xff;
1733 fis[17] = (ccb->ataio.aux >> 8) & 0xff;
1734 fis[18] = (ccb->ataio.aux >> 16) & 0xff;
1735 fis[19] = (ccb->ataio.aux >> 24) & 0xff;
1736 }
1737 } else {
1738 /* Soft reset. */
1739 }
1740 return (20);
1741 }
1742
1743 static int
siis_sata_connect(struct siis_channel * ch)1744 siis_sata_connect(struct siis_channel *ch)
1745 {
1746 u_int32_t status;
1747 int timeout, found = 0;
1748
1749 /* Wait up to 100ms for "connect well" */
1750 for (timeout = 0; timeout < 1000 ; timeout++) {
1751 status = ATA_INL(ch->r_mem, SIIS_P_SSTS);
1752 if ((status & ATA_SS_DET_MASK) != ATA_SS_DET_NO_DEVICE)
1753 found = 1;
1754 if (((status & ATA_SS_DET_MASK) == ATA_SS_DET_PHY_ONLINE) &&
1755 ((status & ATA_SS_SPD_MASK) != ATA_SS_SPD_NO_SPEED) &&
1756 ((status & ATA_SS_IPM_MASK) == ATA_SS_IPM_ACTIVE))
1757 break;
1758 if ((status & ATA_SS_DET_MASK) == ATA_SS_DET_PHY_OFFLINE) {
1759 if (bootverbose) {
1760 device_printf(ch->dev, "SATA offline status=%08x\n",
1761 status);
1762 }
1763 return (0);
1764 }
1765 if (found == 0 && timeout >= 100)
1766 break;
1767 DELAY(100);
1768 }
1769 if (timeout >= 1000 || !found) {
1770 if (bootverbose) {
1771 device_printf(ch->dev,
1772 "SATA connect timeout time=%dus status=%08x\n",
1773 timeout * 100, status);
1774 }
1775 return (0);
1776 }
1777 if (bootverbose) {
1778 device_printf(ch->dev, "SATA connect time=%dus status=%08x\n",
1779 timeout * 100, status);
1780 }
1781 /* Clear SATA error register */
1782 ATA_OUTL(ch->r_mem, SIIS_P_SERR, 0xffffffff);
1783 return (1);
1784 }
1785
1786 static int
siis_check_ids(device_t dev,union ccb * ccb)1787 siis_check_ids(device_t dev, union ccb *ccb)
1788 {
1789
1790 if (ccb->ccb_h.target_id > 15) {
1791 ccb->ccb_h.status = CAM_TID_INVALID;
1792 xpt_done(ccb);
1793 return (-1);
1794 }
1795 if (ccb->ccb_h.target_lun != 0) {
1796 ccb->ccb_h.status = CAM_LUN_INVALID;
1797 xpt_done(ccb);
1798 return (-1);
1799 }
1800 return (0);
1801 }
1802
1803 static void
siisaction(struct cam_sim * sim,union ccb * ccb)1804 siisaction(struct cam_sim *sim, union ccb *ccb)
1805 {
1806 device_t dev, parent;
1807 struct siis_channel *ch;
1808
1809 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("siisaction func_code=%x\n",
1810 ccb->ccb_h.func_code));
1811
1812 ch = (struct siis_channel *)cam_sim_softc(sim);
1813 dev = ch->dev;
1814 mtx_assert(&ch->mtx, MA_OWNED);
1815 switch (ccb->ccb_h.func_code) {
1816 /* Common cases first */
1817 case XPT_ATA_IO: /* Execute the requested I/O operation */
1818 case XPT_SCSI_IO:
1819 if (siis_check_ids(dev, ccb))
1820 return;
1821 if (ch->devices == 0 ||
1822 (ch->pm_present == 0 &&
1823 ccb->ccb_h.target_id > 0 && ccb->ccb_h.target_id < 15)) {
1824 ccb->ccb_h.status = CAM_SEL_TIMEOUT;
1825 break;
1826 }
1827 ccb->ccb_h.recovery_type = RECOVERY_NONE;
1828 /* Check for command collision. */
1829 if (siis_check_collision(dev, ccb)) {
1830 /* Freeze command. */
1831 ch->frozen = ccb;
1832 /* We have only one frozen slot, so freeze simq also. */
1833 xpt_freeze_simq(ch->sim, 1);
1834 return;
1835 }
1836 siis_begin_transaction(dev, ccb);
1837 return;
1838 case XPT_ABORT: /* Abort the specified CCB */
1839 /* XXX Implement */
1840 ccb->ccb_h.status = CAM_REQ_INVALID;
1841 break;
1842 case XPT_SET_TRAN_SETTINGS:
1843 {
1844 struct ccb_trans_settings *cts = &ccb->cts;
1845 struct siis_device *d;
1846
1847 if (siis_check_ids(dev, ccb))
1848 return;
1849 if (cts->type == CTS_TYPE_CURRENT_SETTINGS)
1850 d = &ch->curr[ccb->ccb_h.target_id];
1851 else
1852 d = &ch->user[ccb->ccb_h.target_id];
1853 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_REVISION)
1854 d->revision = cts->xport_specific.sata.revision;
1855 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_MODE)
1856 d->mode = cts->xport_specific.sata.mode;
1857 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_BYTECOUNT)
1858 d->bytecount = min(8192, cts->xport_specific.sata.bytecount);
1859 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_TAGS)
1860 d->tags = min(SIIS_MAX_SLOTS, cts->xport_specific.sata.tags);
1861 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_PM) {
1862 ch->pm_present = cts->xport_specific.sata.pm_present;
1863 if (ch->pm_present)
1864 ATA_OUTL(ch->r_mem, SIIS_P_CTLSET, SIIS_P_CTL_PME);
1865 else
1866 ATA_OUTL(ch->r_mem, SIIS_P_CTLCLR, SIIS_P_CTL_PME);
1867 }
1868 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_TAGS)
1869 d->atapi = cts->xport_specific.sata.atapi;
1870 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_CAPS)
1871 d->caps = cts->xport_specific.sata.caps;
1872 ccb->ccb_h.status = CAM_REQ_CMP;
1873 break;
1874 }
1875 case XPT_GET_TRAN_SETTINGS:
1876 /* Get default/user set transfer settings for the target */
1877 {
1878 struct ccb_trans_settings *cts = &ccb->cts;
1879 struct siis_device *d;
1880 uint32_t status;
1881
1882 if (siis_check_ids(dev, ccb))
1883 return;
1884 if (cts->type == CTS_TYPE_CURRENT_SETTINGS)
1885 d = &ch->curr[ccb->ccb_h.target_id];
1886 else
1887 d = &ch->user[ccb->ccb_h.target_id];
1888 cts->protocol = PROTO_UNSPECIFIED;
1889 cts->protocol_version = PROTO_VERSION_UNSPECIFIED;
1890 cts->transport = XPORT_SATA;
1891 cts->transport_version = XPORT_VERSION_UNSPECIFIED;
1892 cts->proto_specific.valid = 0;
1893 cts->xport_specific.sata.valid = 0;
1894 if (cts->type == CTS_TYPE_CURRENT_SETTINGS &&
1895 (ccb->ccb_h.target_id == 15 ||
1896 (ccb->ccb_h.target_id == 0 && !ch->pm_present))) {
1897 status = ATA_INL(ch->r_mem, SIIS_P_SSTS) & ATA_SS_SPD_MASK;
1898 if (status & 0x0f0) {
1899 cts->xport_specific.sata.revision =
1900 (status & 0x0f0) >> 4;
1901 cts->xport_specific.sata.valid |=
1902 CTS_SATA_VALID_REVISION;
1903 }
1904 cts->xport_specific.sata.caps = d->caps & CTS_SATA_CAPS_D;
1905 if (ch->pm_level)
1906 cts->xport_specific.sata.caps |= CTS_SATA_CAPS_H_PMREQ;
1907 cts->xport_specific.sata.caps |= CTS_SATA_CAPS_H_AN;
1908 cts->xport_specific.sata.caps &=
1909 ch->user[ccb->ccb_h.target_id].caps;
1910 cts->xport_specific.sata.valid |= CTS_SATA_VALID_CAPS;
1911 } else {
1912 cts->xport_specific.sata.revision = d->revision;
1913 cts->xport_specific.sata.valid |= CTS_SATA_VALID_REVISION;
1914 cts->xport_specific.sata.caps = d->caps;
1915 if (cts->type == CTS_TYPE_CURRENT_SETTINGS &&
1916 (ch->quirks & SIIS_Q_SNTF) == 0)
1917 cts->xport_specific.sata.caps &= ~CTS_SATA_CAPS_H_AN;
1918 cts->xport_specific.sata.valid |= CTS_SATA_VALID_CAPS;
1919 }
1920 cts->xport_specific.sata.mode = d->mode;
1921 cts->xport_specific.sata.valid |= CTS_SATA_VALID_MODE;
1922 cts->xport_specific.sata.bytecount = d->bytecount;
1923 cts->xport_specific.sata.valid |= CTS_SATA_VALID_BYTECOUNT;
1924 cts->xport_specific.sata.pm_present = ch->pm_present;
1925 cts->xport_specific.sata.valid |= CTS_SATA_VALID_PM;
1926 cts->xport_specific.sata.tags = d->tags;
1927 cts->xport_specific.sata.valid |= CTS_SATA_VALID_TAGS;
1928 cts->xport_specific.sata.atapi = d->atapi;
1929 cts->xport_specific.sata.valid |= CTS_SATA_VALID_ATAPI;
1930 ccb->ccb_h.status = CAM_REQ_CMP;
1931 break;
1932 }
1933 case XPT_RESET_BUS: /* Reset the specified SCSI bus */
1934 case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */
1935 siis_reset(dev);
1936 ccb->ccb_h.status = CAM_REQ_CMP;
1937 break;
1938 case XPT_TERM_IO: /* Terminate the I/O process */
1939 /* XXX Implement */
1940 ccb->ccb_h.status = CAM_REQ_INVALID;
1941 break;
1942 case XPT_PATH_INQ: /* Path routing inquiry */
1943 {
1944 struct ccb_pathinq *cpi = &ccb->cpi;
1945
1946 parent = device_get_parent(dev);
1947 cpi->version_num = 1; /* XXX??? */
1948 cpi->hba_inquiry = PI_SDTR_ABLE | PI_TAG_ABLE;
1949 cpi->hba_inquiry |= PI_SATAPM;
1950 cpi->target_sprt = 0;
1951 cpi->hba_misc = PIM_SEQSCAN | PIM_UNMAPPED | PIM_ATA_EXT;
1952 cpi->hba_eng_cnt = 0;
1953 cpi->max_target = 15;
1954 cpi->max_lun = 0;
1955 cpi->initiator_id = 0;
1956 cpi->bus_id = cam_sim_bus(sim);
1957 cpi->base_transfer_speed = 150000;
1958 strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
1959 strlcpy(cpi->hba_vid, "SIIS", HBA_IDLEN);
1960 strlcpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
1961 cpi->unit_number = cam_sim_unit(sim);
1962 cpi->transport = XPORT_SATA;
1963 cpi->transport_version = XPORT_VERSION_UNSPECIFIED;
1964 cpi->protocol = PROTO_ATA;
1965 cpi->protocol_version = PROTO_VERSION_UNSPECIFIED;
1966 cpi->maxio = maxphys;
1967 cpi->hba_vendor = pci_get_vendor(parent);
1968 cpi->hba_device = pci_get_device(parent);
1969 cpi->hba_subvendor = pci_get_subvendor(parent);
1970 cpi->hba_subdevice = pci_get_subdevice(parent);
1971 cpi->ccb_h.status = CAM_REQ_CMP;
1972 break;
1973 }
1974 default:
1975 ccb->ccb_h.status = CAM_REQ_INVALID;
1976 break;
1977 }
1978 xpt_done(ccb);
1979 }
1980
1981 static void
siispoll(struct cam_sim * sim)1982 siispoll(struct cam_sim *sim)
1983 {
1984 struct siis_channel *ch = (struct siis_channel *)cam_sim_softc(sim);
1985
1986 siis_ch_intr(ch->dev);
1987 }
1988