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
207 /* Detach & delete all children */
208 device_delete_children(dev);
209
210 /* Free interrupts. */
211 if (ctlr->irq.r_irq) {
212 bus_teardown_intr(dev, ctlr->irq.r_irq,
213 ctlr->irq.handle);
214 bus_release_resource(dev, SYS_RES_IRQ,
215 ctlr->irq.r_irq_rid, ctlr->irq.r_irq);
216 }
217 pci_release_msi(dev);
218 /* Free memory. */
219 rman_fini(&ctlr->sc_iomem);
220 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem);
221 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_grid, ctlr->r_gmem);
222 return (0);
223 }
224
225 static int
siis_suspend(device_t dev)226 siis_suspend(device_t dev)
227 {
228 struct siis_controller *ctlr = device_get_softc(dev);
229
230 bus_generic_suspend(dev);
231 /* Put controller into reset state. */
232 ctlr->gctl |= SIIS_GCTL_GRESET;
233 ATA_OUTL(ctlr->r_gmem, SIIS_GCTL, ctlr->gctl);
234 return 0;
235 }
236
237 static int
siis_resume(device_t dev)238 siis_resume(device_t dev)
239 {
240 struct siis_controller *ctlr = device_get_softc(dev);
241
242 /* Set PCIe max read request size to at least 1024 bytes */
243 if (pci_get_max_read_req(dev) < 1024)
244 pci_set_max_read_req(dev, 1024);
245 /* Put controller into reset state. */
246 ctlr->gctl |= SIIS_GCTL_GRESET;
247 ATA_OUTL(ctlr->r_gmem, SIIS_GCTL, ctlr->gctl);
248 DELAY(10000);
249 /* Get controller out of reset state and enable port interrupts. */
250 ctlr->gctl &= ~(SIIS_GCTL_GRESET | SIIS_GCTL_I2C_IE);
251 ctlr->gctl |= 0x0000000f;
252 ATA_OUTL(ctlr->r_gmem, SIIS_GCTL, ctlr->gctl);
253 return (bus_generic_resume(dev));
254 }
255
256 static int
siis_setup_interrupt(device_t dev)257 siis_setup_interrupt(device_t dev)
258 {
259 struct siis_controller *ctlr = device_get_softc(dev);
260 int msi = ctlr->quirks & SIIS_Q_NOMSI ? 0 : 1;
261
262 /* Process hints. */
263 resource_int_value(device_get_name(dev),
264 device_get_unit(dev), "msi", &msi);
265 if (msi < 0)
266 msi = 0;
267 else if (msi > 0)
268 msi = min(1, pci_msi_count(dev));
269 /* Allocate MSI if needed/present. */
270 if (msi && pci_alloc_msi(dev, &msi) != 0)
271 msi = 0;
272 /* Allocate all IRQs. */
273 ctlr->irq.r_irq_rid = msi ? 1 : 0;
274 if (!(ctlr->irq.r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
275 &ctlr->irq.r_irq_rid, RF_SHAREABLE | RF_ACTIVE))) {
276 device_printf(dev, "unable to map interrupt\n");
277 return ENXIO;
278 }
279 if ((bus_setup_intr(dev, ctlr->irq.r_irq, ATA_INTR_FLAGS, NULL,
280 siis_intr, ctlr, &ctlr->irq.handle))) {
281 /* SOS XXX release r_irq */
282 device_printf(dev, "unable to setup interrupt\n");
283 return ENXIO;
284 }
285 return (0);
286 }
287
288 /*
289 * Common case interrupt handler.
290 */
291 static void
siis_intr(void * data)292 siis_intr(void *data)
293 {
294 struct siis_controller *ctlr = (struct siis_controller *)data;
295 u_int32_t is;
296 void *arg;
297 int unit;
298
299 is = ATA_INL(ctlr->r_gmem, SIIS_IS);
300 for (unit = 0; unit < ctlr->channels; unit++) {
301 if ((is & SIIS_IS_PORT(unit)) != 0 &&
302 (arg = ctlr->interrupt[unit].argument)) {
303 ctlr->interrupt[unit].function(arg);
304 }
305 }
306 /* Acknowledge interrupt, if MSI enabled. */
307 if (ctlr->irq.r_irq_rid) {
308 ATA_OUTL(ctlr->r_gmem, SIIS_GCTL,
309 ctlr->gctl | SIIS_GCTL_MSIACK);
310 }
311 }
312
313 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)314 siis_alloc_resource(device_t dev, device_t child, int type, int *rid,
315 rman_res_t start, rman_res_t end, rman_res_t count, u_int flags)
316 {
317 struct siis_controller *ctlr = device_get_softc(dev);
318 int unit = ((struct siis_channel *)device_get_softc(child))->unit;
319 struct resource *res = NULL;
320 int offset = unit << 13;
321 rman_res_t st;
322
323 switch (type) {
324 case SYS_RES_MEMORY:
325 st = rman_get_start(ctlr->r_mem);
326 res = rman_reserve_resource(&ctlr->sc_iomem, st + offset,
327 st + offset + 0x2000, 0x2000, RF_ACTIVE, child);
328 if (res) {
329 bus_space_handle_t bsh;
330 bus_space_tag_t bst;
331 bsh = rman_get_bushandle(ctlr->r_mem);
332 bst = rman_get_bustag(ctlr->r_mem);
333 bus_space_subregion(bst, bsh, offset, 0x2000, &bsh);
334 rman_set_bushandle(res, bsh);
335 rman_set_bustag(res, bst);
336 }
337 break;
338 case SYS_RES_IRQ:
339 if (*rid == ATA_IRQ_RID)
340 res = ctlr->irq.r_irq;
341 break;
342 }
343 return (res);
344 }
345
346 static int
siis_release_resource(device_t dev,device_t child,struct resource * r)347 siis_release_resource(device_t dev, device_t child, struct resource *r)
348 {
349
350 switch (rman_get_type(r)) {
351 case SYS_RES_MEMORY:
352 rman_release_resource(r);
353 return (0);
354 case SYS_RES_IRQ:
355 if (rman_get_rid(r) != ATA_IRQ_RID)
356 return ENOENT;
357 return (0);
358 }
359 return (EINVAL);
360 }
361
362 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)363 siis_setup_intr(device_t dev, device_t child, struct resource *irq,
364 int flags, driver_filter_t *filter, driver_intr_t *function,
365 void *argument, void **cookiep)
366 {
367 struct siis_controller *ctlr = device_get_softc(dev);
368 int unit = (intptr_t)device_get_ivars(child);
369
370 if (filter != NULL) {
371 printf("siis.c: we cannot use a filter here\n");
372 return (EINVAL);
373 }
374 ctlr->interrupt[unit].function = function;
375 ctlr->interrupt[unit].argument = argument;
376 return (0);
377 }
378
379 static int
siis_teardown_intr(device_t dev,device_t child,struct resource * irq,void * cookie)380 siis_teardown_intr(device_t dev, device_t child, struct resource *irq,
381 void *cookie)
382 {
383 struct siis_controller *ctlr = device_get_softc(dev);
384 int unit = (intptr_t)device_get_ivars(child);
385
386 ctlr->interrupt[unit].function = NULL;
387 ctlr->interrupt[unit].argument = NULL;
388 return (0);
389 }
390
391 static int
siis_print_child(device_t dev,device_t child)392 siis_print_child(device_t dev, device_t child)
393 {
394 int retval;
395
396 retval = bus_print_child_header(dev, child);
397 retval += printf(" at channel %d",
398 (int)(intptr_t)device_get_ivars(child));
399 retval += bus_print_child_footer(dev, child);
400
401 return (retval);
402 }
403
404 static int
siis_child_location(device_t dev,device_t child,struct sbuf * sb)405 siis_child_location(device_t dev, device_t child, struct sbuf *sb)
406 {
407
408 sbuf_printf(sb, "channel=%d",
409 (int)(intptr_t)device_get_ivars(child));
410 return (0);
411 }
412
413 static bus_dma_tag_t
siis_get_dma_tag(device_t bus,device_t child)414 siis_get_dma_tag(device_t bus, device_t child)
415 {
416
417 return (bus_get_dma_tag(bus));
418 }
419
420 static device_method_t siis_methods[] = {
421 DEVMETHOD(device_probe, siis_probe),
422 DEVMETHOD(device_attach, siis_attach),
423 DEVMETHOD(device_detach, siis_detach),
424 DEVMETHOD(device_suspend, siis_suspend),
425 DEVMETHOD(device_resume, siis_resume),
426 DEVMETHOD(bus_print_child, siis_print_child),
427 DEVMETHOD(bus_alloc_resource, siis_alloc_resource),
428 DEVMETHOD(bus_release_resource, siis_release_resource),
429 DEVMETHOD(bus_setup_intr, siis_setup_intr),
430 DEVMETHOD(bus_teardown_intr,siis_teardown_intr),
431 DEVMETHOD(bus_child_location, siis_child_location),
432 DEVMETHOD(bus_get_dma_tag, siis_get_dma_tag),
433 { 0, 0 }
434 };
435
436 static driver_t siis_driver = {
437 "siis",
438 siis_methods,
439 sizeof(struct siis_controller)
440 };
441
442 DRIVER_MODULE(siis, pci, siis_driver, 0, 0);
443 MODULE_VERSION(siis, 1);
444 MODULE_DEPEND(siis, cam, 1, 1, 1);
445
446 static int
siis_ch_probe(device_t dev)447 siis_ch_probe(device_t dev)
448 {
449
450 device_set_desc(dev, "SIIS channel");
451 return (BUS_PROBE_DEFAULT);
452 }
453
454 static int
siis_ch_attach(device_t dev)455 siis_ch_attach(device_t dev)
456 {
457 struct siis_controller *ctlr = device_get_softc(device_get_parent(dev));
458 struct siis_channel *ch = device_get_softc(dev);
459 struct cam_devq *devq;
460 int rid, error, i, sata_rev = 0;
461
462 ch->dev = dev;
463 ch->unit = (intptr_t)device_get_ivars(dev);
464 ch->quirks = ctlr->quirks;
465 ch->pm_level = 0;
466 resource_int_value(device_get_name(dev),
467 device_get_unit(dev), "pm_level", &ch->pm_level);
468 resource_int_value(device_get_name(dev),
469 device_get_unit(dev), "sata_rev", &sata_rev);
470 for (i = 0; i < 16; i++) {
471 ch->user[i].revision = sata_rev;
472 ch->user[i].mode = 0;
473 ch->user[i].bytecount = 8192;
474 ch->user[i].tags = SIIS_MAX_SLOTS;
475 ch->curr[i] = ch->user[i];
476 if (ch->pm_level)
477 ch->user[i].caps = CTS_SATA_CAPS_H_PMREQ;
478 ch->user[i].caps |= CTS_SATA_CAPS_H_AN;
479 }
480 mtx_init(&ch->mtx, "SIIS channel lock", NULL, MTX_DEF);
481 rid = ch->unit;
482 if (!(ch->r_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
483 &rid, RF_ACTIVE)))
484 return (ENXIO);
485 siis_dmainit(dev);
486 siis_slotsalloc(dev);
487 siis_ch_init(dev);
488 mtx_lock(&ch->mtx);
489 rid = ATA_IRQ_RID;
490 if (!(ch->r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
491 &rid, RF_SHAREABLE | RF_ACTIVE))) {
492 device_printf(dev, "Unable to map interrupt\n");
493 error = ENXIO;
494 goto err0;
495 }
496 if ((bus_setup_intr(dev, ch->r_irq, ATA_INTR_FLAGS, NULL,
497 siis_ch_intr_locked, dev, &ch->ih))) {
498 device_printf(dev, "Unable to setup interrupt\n");
499 error = ENXIO;
500 goto err1;
501 }
502 /* Create the device queue for our SIM. */
503 devq = cam_simq_alloc(SIIS_MAX_SLOTS);
504 if (devq == NULL) {
505 device_printf(dev, "Unable to allocate simq\n");
506 error = ENOMEM;
507 goto err1;
508 }
509 /* Construct SIM entry */
510 ch->sim = cam_sim_alloc(siisaction, siispoll, "siisch", ch,
511 device_get_unit(dev), &ch->mtx, 2, SIIS_MAX_SLOTS, devq);
512 if (ch->sim == NULL) {
513 cam_simq_free(devq);
514 device_printf(dev, "unable to allocate sim\n");
515 error = ENOMEM;
516 goto err1;
517 }
518 if (xpt_bus_register(ch->sim, dev, 0) != CAM_SUCCESS) {
519 device_printf(dev, "unable to register xpt bus\n");
520 error = ENXIO;
521 goto err2;
522 }
523 if (xpt_create_path(&ch->path, /*periph*/NULL, cam_sim_path(ch->sim),
524 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
525 device_printf(dev, "unable to create path\n");
526 error = ENXIO;
527 goto err3;
528 }
529 mtx_unlock(&ch->mtx);
530 ch->led = led_create(siis_ch_led, dev, device_get_nameunit(dev));
531 return (0);
532
533 err3:
534 xpt_bus_deregister(cam_sim_path(ch->sim));
535 err2:
536 cam_sim_free(ch->sim, /*free_devq*/TRUE);
537 err1:
538 bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ch->r_irq);
539 err0:
540 bus_release_resource(dev, SYS_RES_MEMORY, ch->unit, ch->r_mem);
541 mtx_unlock(&ch->mtx);
542 mtx_destroy(&ch->mtx);
543 return (error);
544 }
545
546 static int
siis_ch_detach(device_t dev)547 siis_ch_detach(device_t dev)
548 {
549 struct siis_channel *ch = device_get_softc(dev);
550
551 led_destroy(ch->led);
552 mtx_lock(&ch->mtx);
553 xpt_async(AC_LOST_DEVICE, ch->path, NULL);
554 xpt_free_path(ch->path);
555 xpt_bus_deregister(cam_sim_path(ch->sim));
556 cam_sim_free(ch->sim, /*free_devq*/TRUE);
557 mtx_unlock(&ch->mtx);
558
559 bus_teardown_intr(dev, ch->r_irq, ch->ih);
560 bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ch->r_irq);
561
562 siis_ch_deinit(dev);
563 siis_slotsfree(dev);
564 siis_dmafini(dev);
565
566 bus_release_resource(dev, SYS_RES_MEMORY, ch->unit, ch->r_mem);
567 mtx_destroy(&ch->mtx);
568 return (0);
569 }
570
571 static int
siis_ch_init(device_t dev)572 siis_ch_init(device_t dev)
573 {
574 struct siis_channel *ch = device_get_softc(dev);
575
576 /* Get port out of reset state. */
577 ATA_OUTL(ch->r_mem, SIIS_P_CTLCLR, SIIS_P_CTL_PORT_RESET);
578 ATA_OUTL(ch->r_mem, SIIS_P_CTLCLR, SIIS_P_CTL_32BIT);
579 if (ch->pm_present)
580 ATA_OUTL(ch->r_mem, SIIS_P_CTLSET, SIIS_P_CTL_PME);
581 else
582 ATA_OUTL(ch->r_mem, SIIS_P_CTLCLR, SIIS_P_CTL_PME);
583 /* Enable port interrupts */
584 ATA_OUTL(ch->r_mem, SIIS_P_IESET, SIIS_P_IX_ENABLED);
585 return (0);
586 }
587
588 static int
siis_ch_deinit(device_t dev)589 siis_ch_deinit(device_t dev)
590 {
591 struct siis_channel *ch = device_get_softc(dev);
592
593 /* Put port into reset state. */
594 ATA_OUTL(ch->r_mem, SIIS_P_CTLSET, SIIS_P_CTL_PORT_RESET);
595 return (0);
596 }
597
598 static int
siis_ch_suspend(device_t dev)599 siis_ch_suspend(device_t dev)
600 {
601 struct siis_channel *ch = device_get_softc(dev);
602
603 mtx_lock(&ch->mtx);
604 xpt_freeze_simq(ch->sim, 1);
605 while (ch->oslots)
606 msleep(ch, &ch->mtx, PRIBIO, "siissusp", hz/100);
607 siis_ch_deinit(dev);
608 mtx_unlock(&ch->mtx);
609 return (0);
610 }
611
612 static int
siis_ch_resume(device_t dev)613 siis_ch_resume(device_t dev)
614 {
615 struct siis_channel *ch = device_get_softc(dev);
616
617 mtx_lock(&ch->mtx);
618 siis_ch_init(dev);
619 siis_reset(dev);
620 xpt_release_simq(ch->sim, TRUE);
621 mtx_unlock(&ch->mtx);
622 return (0);
623 }
624
625 static device_method_t siisch_methods[] = {
626 DEVMETHOD(device_probe, siis_ch_probe),
627 DEVMETHOD(device_attach, siis_ch_attach),
628 DEVMETHOD(device_detach, siis_ch_detach),
629 DEVMETHOD(device_suspend, siis_ch_suspend),
630 DEVMETHOD(device_resume, siis_ch_resume),
631 { 0, 0 }
632 };
633
634 static driver_t siisch_driver = {
635 "siisch",
636 siisch_methods,
637 sizeof(struct siis_channel)
638 };
639
640 DRIVER_MODULE(siisch, siis, siisch_driver, 0, 0);
641
642 static void
siis_ch_led(void * priv,int onoff)643 siis_ch_led(void *priv, int onoff)
644 {
645 device_t dev;
646 struct siis_channel *ch;
647
648 dev = (device_t)priv;
649 ch = device_get_softc(dev);
650
651 if (onoff == 0)
652 ATA_OUTL(ch->r_mem, SIIS_P_CTLCLR, SIIS_P_CTL_LED_ON);
653 else
654 ATA_OUTL(ch->r_mem, SIIS_P_CTLSET, SIIS_P_CTL_LED_ON);
655 }
656
657 struct siis_dc_cb_args {
658 bus_addr_t maddr;
659 int error;
660 };
661
662 static void
siis_dmainit(device_t dev)663 siis_dmainit(device_t dev)
664 {
665 struct siis_channel *ch = device_get_softc(dev);
666 struct siis_dc_cb_args dcba;
667
668 /* Command area. */
669 if (bus_dma_tag_create(bus_get_dma_tag(dev), 1024, 0,
670 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
671 NULL, NULL, SIIS_WORK_SIZE, 1, SIIS_WORK_SIZE,
672 0, NULL, NULL, &ch->dma.work_tag))
673 goto error;
674 if (bus_dmamem_alloc(ch->dma.work_tag, (void **)&ch->dma.work, 0,
675 &ch->dma.work_map))
676 goto error;
677 if (bus_dmamap_load(ch->dma.work_tag, ch->dma.work_map, ch->dma.work,
678 SIIS_WORK_SIZE, siis_dmasetupc_cb, &dcba, 0) || dcba.error) {
679 bus_dmamem_free(ch->dma.work_tag, ch->dma.work, ch->dma.work_map);
680 goto error;
681 }
682 ch->dma.work_bus = dcba.maddr;
683 /* Data area. */
684 if (bus_dma_tag_create(bus_get_dma_tag(dev), 1, 0,
685 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
686 NULL, NULL,
687 SIIS_SG_ENTRIES * PAGE_SIZE, SIIS_SG_ENTRIES, 0xFFFFFFFF,
688 0, busdma_lock_mutex, &ch->mtx, &ch->dma.data_tag)) {
689 goto error;
690 }
691 return;
692
693 error:
694 device_printf(dev, "WARNING - DMA initialization failed\n");
695 siis_dmafini(dev);
696 }
697
698 static void
siis_dmasetupc_cb(void * xsc,bus_dma_segment_t * segs,int nsegs,int error)699 siis_dmasetupc_cb(void *xsc, bus_dma_segment_t *segs, int nsegs, int error)
700 {
701 struct siis_dc_cb_args *dcba = (struct siis_dc_cb_args *)xsc;
702
703 if (!(dcba->error = error))
704 dcba->maddr = segs[0].ds_addr;
705 }
706
707 static void
siis_dmafini(device_t dev)708 siis_dmafini(device_t dev)
709 {
710 struct siis_channel *ch = device_get_softc(dev);
711
712 if (ch->dma.data_tag) {
713 bus_dma_tag_destroy(ch->dma.data_tag);
714 ch->dma.data_tag = NULL;
715 }
716 if (ch->dma.work_bus) {
717 bus_dmamap_unload(ch->dma.work_tag, ch->dma.work_map);
718 bus_dmamem_free(ch->dma.work_tag, ch->dma.work, ch->dma.work_map);
719 ch->dma.work_bus = 0;
720 ch->dma.work_map = NULL;
721 ch->dma.work = NULL;
722 }
723 if (ch->dma.work_tag) {
724 bus_dma_tag_destroy(ch->dma.work_tag);
725 ch->dma.work_tag = NULL;
726 }
727 }
728
729 static void
siis_slotsalloc(device_t dev)730 siis_slotsalloc(device_t dev)
731 {
732 struct siis_channel *ch = device_get_softc(dev);
733 int i;
734
735 /* Alloc and setup command/dma slots */
736 bzero(ch->slot, sizeof(ch->slot));
737 for (i = 0; i < SIIS_MAX_SLOTS; i++) {
738 struct siis_slot *slot = &ch->slot[i];
739
740 slot->dev = dev;
741 slot->slot = i;
742 slot->state = SIIS_SLOT_EMPTY;
743 slot->prb_offset = SIIS_PRB_SIZE * i;
744 slot->ccb = NULL;
745 callout_init_mtx(&slot->timeout, &ch->mtx, 0);
746
747 if (bus_dmamap_create(ch->dma.data_tag, 0, &slot->dma.data_map))
748 device_printf(ch->dev, "FAILURE - create data_map\n");
749 }
750 }
751
752 static void
siis_slotsfree(device_t dev)753 siis_slotsfree(device_t dev)
754 {
755 struct siis_channel *ch = device_get_softc(dev);
756 int i;
757
758 /* Free all dma slots */
759 for (i = 0; i < SIIS_MAX_SLOTS; i++) {
760 struct siis_slot *slot = &ch->slot[i];
761
762 callout_drain(&slot->timeout);
763 if (slot->dma.data_map) {
764 bus_dmamap_destroy(ch->dma.data_tag, slot->dma.data_map);
765 slot->dma.data_map = NULL;
766 }
767 }
768 }
769
770 static void
siis_notify_events(device_t dev)771 siis_notify_events(device_t dev)
772 {
773 struct siis_channel *ch = device_get_softc(dev);
774 struct cam_path *dpath;
775 u_int32_t status;
776 int i;
777
778 if (ch->quirks & SIIS_Q_SNTF) {
779 status = ATA_INL(ch->r_mem, SIIS_P_SNTF);
780 ATA_OUTL(ch->r_mem, SIIS_P_SNTF, status);
781 } else {
782 /*
783 * Without SNTF we have no idea which device sent notification.
784 * If PMP is connected, assume it, else - device.
785 */
786 status = (ch->pm_present) ? 0x8000 : 0x0001;
787 }
788 if (bootverbose)
789 device_printf(dev, "SNTF 0x%04x\n", status);
790 for (i = 0; i < 16; i++) {
791 if ((status & (1 << i)) == 0)
792 continue;
793 if (xpt_create_path(&dpath, NULL,
794 xpt_path_path_id(ch->path), i, 0) == CAM_REQ_CMP) {
795 xpt_async(AC_SCSI_AEN, dpath, NULL);
796 xpt_free_path(dpath);
797 }
798 }
799
800 }
801
802 static void
siis_phy_check_events(device_t dev)803 siis_phy_check_events(device_t dev)
804 {
805 struct siis_channel *ch = device_get_softc(dev);
806
807 /* If we have a connection event, deal with it */
808 if (ch->pm_level == 0) {
809 u_int32_t status = ATA_INL(ch->r_mem, SIIS_P_SSTS);
810 union ccb *ccb;
811
812 if (bootverbose) {
813 if (((status & ATA_SS_DET_MASK) == ATA_SS_DET_PHY_ONLINE) &&
814 ((status & ATA_SS_SPD_MASK) != ATA_SS_SPD_NO_SPEED) &&
815 ((status & ATA_SS_IPM_MASK) == ATA_SS_IPM_ACTIVE)) {
816 device_printf(dev, "CONNECT requested\n");
817 } else
818 device_printf(dev, "DISCONNECT requested\n");
819 }
820 siis_reset(dev);
821 if ((ccb = xpt_alloc_ccb_nowait()) == NULL)
822 return;
823 if (xpt_create_path(&ccb->ccb_h.path, NULL,
824 cam_sim_path(ch->sim),
825 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
826 xpt_free_ccb(ccb);
827 return;
828 }
829 xpt_rescan(ccb);
830 }
831 }
832
833 static void
siis_ch_intr_locked(void * data)834 siis_ch_intr_locked(void *data)
835 {
836 device_t dev = (device_t)data;
837 struct siis_channel *ch = device_get_softc(dev);
838
839 mtx_lock(&ch->mtx);
840 siis_ch_intr(data);
841 mtx_unlock(&ch->mtx);
842 }
843
844 static void
siis_ch_intr(void * data)845 siis_ch_intr(void *data)
846 {
847 device_t dev = (device_t)data;
848 struct siis_channel *ch = device_get_softc(dev);
849 uint32_t istatus, sstatus, ctx, estatus, ok;
850 enum siis_err_type et;
851 int i, ccs, port, tslots;
852
853 mtx_assert(&ch->mtx, MA_OWNED);
854 /* Read command statuses. */
855 sstatus = ATA_INL(ch->r_mem, SIIS_P_SS);
856 ok = ch->rslots & ~sstatus;
857 /* Complete all successful commands. */
858 for (i = 0; i < SIIS_MAX_SLOTS; i++) {
859 if ((ok >> i) & 1)
860 siis_end_transaction(&ch->slot[i], SIIS_ERR_NONE);
861 }
862 /* Do we have any other events? */
863 if ((sstatus & SIIS_P_SS_ATTN) == 0)
864 return;
865 /* Read and clear interrupt statuses. */
866 istatus = ATA_INL(ch->r_mem, SIIS_P_IS) &
867 (0xFFFF & ~SIIS_P_IX_COMMCOMP);
868 ATA_OUTL(ch->r_mem, SIIS_P_IS, istatus);
869 /* Process PHY events */
870 if (istatus & SIIS_P_IX_PHYRDYCHG)
871 siis_phy_check_events(dev);
872 /* Process NOTIFY events */
873 if (istatus & SIIS_P_IX_SDBN)
874 siis_notify_events(dev);
875 /* Process command errors */
876 if (istatus & SIIS_P_IX_COMMERR) {
877 estatus = ATA_INL(ch->r_mem, SIIS_P_CMDERR);
878 ctx = ATA_INL(ch->r_mem, SIIS_P_CTX);
879 ccs = (ctx & SIIS_P_CTX_SLOT) >> SIIS_P_CTX_SLOT_SHIFT;
880 port = (ctx & SIIS_P_CTX_PMP) >> SIIS_P_CTX_PMP_SHIFT;
881 //device_printf(dev, "%s ERROR ss %08x is %08x rs %08x es %d act %d port %d serr %08x\n",
882 // __func__, sstatus, istatus, ch->rslots, estatus, ccs, port,
883 // ATA_INL(ch->r_mem, SIIS_P_SERR));
884
885 if (!ch->recoverycmd && !ch->recovery) {
886 xpt_freeze_simq(ch->sim, ch->numrslots);
887 ch->recovery = 1;
888 }
889 if (ch->frozen) {
890 union ccb *fccb = ch->frozen;
891 ch->frozen = NULL;
892 fccb->ccb_h.status &= ~CAM_STATUS_MASK;
893 fccb->ccb_h.status |= CAM_REQUEUE_REQ | CAM_RELEASE_SIMQ;
894 if (!(fccb->ccb_h.status & CAM_DEV_QFRZN)) {
895 xpt_freeze_devq(fccb->ccb_h.path, 1);
896 fccb->ccb_h.status |= CAM_DEV_QFRZN;
897 }
898 xpt_done(fccb);
899 }
900 if (estatus == SIIS_P_CMDERR_DEV ||
901 estatus == SIIS_P_CMDERR_SDB ||
902 estatus == SIIS_P_CMDERR_DATAFIS) {
903 tslots = ch->numtslots[port];
904 for (i = 0; i < SIIS_MAX_SLOTS; i++) {
905 /* XXX: requests in loading state. */
906 if (((ch->rslots >> i) & 1) == 0)
907 continue;
908 if (ch->slot[i].ccb->ccb_h.target_id != port)
909 continue;
910 if (tslots == 0) {
911 /* Untagged operation. */
912 if (i == ccs)
913 et = SIIS_ERR_TFE;
914 else
915 et = SIIS_ERR_INNOCENT;
916 } else {
917 /* Tagged operation. */
918 et = SIIS_ERR_NCQ;
919 }
920 siis_end_transaction(&ch->slot[i], et);
921 }
922 /*
923 * We can't reinit port if there are some other
924 * commands active, use resume to complete them.
925 */
926 if (ch->rslots != 0 && !ch->recoverycmd)
927 ATA_OUTL(ch->r_mem, SIIS_P_CTLSET, SIIS_P_CTL_RESUME);
928 } else {
929 if (estatus == SIIS_P_CMDERR_SENDFIS ||
930 estatus == SIIS_P_CMDERR_INCSTATE ||
931 estatus == SIIS_P_CMDERR_PPE ||
932 estatus == SIIS_P_CMDERR_SERVICE) {
933 et = SIIS_ERR_SATA;
934 } else
935 et = SIIS_ERR_INVALID;
936 for (i = 0; i < SIIS_MAX_SLOTS; i++) {
937 /* XXX: requests in loading state. */
938 if (((ch->rslots >> i) & 1) == 0)
939 continue;
940 siis_end_transaction(&ch->slot[i], et);
941 }
942 }
943 }
944 }
945
946 /* Must be called with channel locked. */
947 static int
siis_check_collision(device_t dev,union ccb * ccb)948 siis_check_collision(device_t dev, union ccb *ccb)
949 {
950 struct siis_channel *ch = device_get_softc(dev);
951
952 mtx_assert(&ch->mtx, MA_OWNED);
953 if ((ccb->ccb_h.func_code == XPT_ATA_IO) &&
954 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) {
955 /* Tagged command while we have no supported tag free. */
956 if (((~ch->oslots) & (0x7fffffff >> (31 -
957 ch->curr[ccb->ccb_h.target_id].tags))) == 0)
958 return (1);
959 }
960 if ((ccb->ccb_h.func_code == XPT_ATA_IO) &&
961 (ccb->ataio.cmd.flags & (CAM_ATAIO_CONTROL | CAM_ATAIO_NEEDRESULT))) {
962 /* Atomic command while anything active. */
963 if (ch->numrslots != 0)
964 return (1);
965 }
966 /* We have some atomic command running. */
967 if (ch->aslots != 0)
968 return (1);
969 return (0);
970 }
971
972 /* Must be called with channel locked. */
973 static void
siis_begin_transaction(device_t dev,union ccb * ccb)974 siis_begin_transaction(device_t dev, union ccb *ccb)
975 {
976 struct siis_channel *ch = device_get_softc(dev);
977 struct siis_slot *slot;
978 int tag, tags;
979
980 mtx_assert(&ch->mtx, MA_OWNED);
981 /* Choose empty slot. */
982 tags = SIIS_MAX_SLOTS;
983 if ((ccb->ccb_h.func_code == XPT_ATA_IO) &&
984 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA))
985 tags = ch->curr[ccb->ccb_h.target_id].tags;
986 tag = fls((~ch->oslots) & (0x7fffffff >> (31 - tags))) - 1;
987 /* Occupy chosen slot. */
988 slot = &ch->slot[tag];
989 slot->ccb = ccb;
990 /* Update channel stats. */
991 ch->oslots |= (1 << slot->slot);
992 ch->numrslots++;
993 if ((ccb->ccb_h.func_code == XPT_ATA_IO) &&
994 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) {
995 ch->numtslots[ccb->ccb_h.target_id]++;
996 }
997 if ((ccb->ccb_h.func_code == XPT_ATA_IO) &&
998 (ccb->ataio.cmd.flags & (CAM_ATAIO_CONTROL | CAM_ATAIO_NEEDRESULT)))
999 ch->aslots |= (1 << slot->slot);
1000 slot->dma.nsegs = 0;
1001 /* If request moves data, setup and load SG list */
1002 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
1003 slot->state = SIIS_SLOT_LOADING;
1004 bus_dmamap_load_ccb(ch->dma.data_tag, slot->dma.data_map,
1005 ccb, siis_dmasetprd, slot, 0);
1006 } else
1007 siis_execute_transaction(slot);
1008 }
1009
1010 /* Locked by busdma engine. */
1011 static void
siis_dmasetprd(void * arg,bus_dma_segment_t * segs,int nsegs,int error)1012 siis_dmasetprd(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
1013 {
1014 struct siis_slot *slot = arg;
1015 struct siis_channel *ch = device_get_softc(slot->dev);
1016 struct siis_cmd *ctp;
1017 struct siis_dma_prd *prd;
1018 int i;
1019
1020 mtx_assert(&ch->mtx, MA_OWNED);
1021 if (error) {
1022 device_printf(slot->dev, "DMA load error\n");
1023 if (!ch->recoverycmd)
1024 xpt_freeze_simq(ch->sim, 1);
1025 siis_end_transaction(slot, SIIS_ERR_INVALID);
1026 return;
1027 }
1028 KASSERT(nsegs <= SIIS_SG_ENTRIES, ("too many DMA segment entries\n"));
1029 slot->dma.nsegs = nsegs;
1030 if (nsegs != 0) {
1031 /* Get a piece of the workspace for this request */
1032 ctp = (struct siis_cmd *)(ch->dma.work + slot->prb_offset);
1033 /* Fill S/G table */
1034 if (slot->ccb->ccb_h.func_code == XPT_ATA_IO)
1035 prd = &ctp->u.ata.prd[0];
1036 else
1037 prd = &ctp->u.atapi.prd[0];
1038 for (i = 0; i < nsegs; i++) {
1039 prd[i].dba = htole64(segs[i].ds_addr);
1040 prd[i].dbc = htole32(segs[i].ds_len);
1041 prd[i].control = 0;
1042 }
1043 prd[nsegs - 1].control = htole32(SIIS_PRD_TRM);
1044 bus_dmamap_sync(ch->dma.data_tag, slot->dma.data_map,
1045 ((slot->ccb->ccb_h.flags & CAM_DIR_IN) ?
1046 BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE));
1047 }
1048 siis_execute_transaction(slot);
1049 }
1050
1051 /* Must be called with channel locked. */
1052 static void
siis_execute_transaction(struct siis_slot * slot)1053 siis_execute_transaction(struct siis_slot *slot)
1054 {
1055 device_t dev = slot->dev;
1056 struct siis_channel *ch = device_get_softc(dev);
1057 struct siis_cmd *ctp;
1058 union ccb *ccb = slot->ccb;
1059 u_int64_t prb_bus;
1060
1061 mtx_assert(&ch->mtx, MA_OWNED);
1062 /* Get a piece of the workspace for this request */
1063 ctp = (struct siis_cmd *)(ch->dma.work + slot->prb_offset);
1064 ctp->control = 0;
1065 ctp->protocol_override = 0;
1066 ctp->transfer_count = 0;
1067 /* Special handling for Soft Reset command. */
1068 if (ccb->ccb_h.func_code == XPT_ATA_IO) {
1069 if (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) {
1070 ctp->control |= htole16(SIIS_PRB_SOFT_RESET);
1071 } else {
1072 ctp->control |= htole16(SIIS_PRB_PROTOCOL_OVERRIDE);
1073 if (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA) {
1074 ctp->protocol_override |=
1075 htole16(SIIS_PRB_PROTO_NCQ);
1076 }
1077 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1078 ctp->protocol_override |=
1079 htole16(SIIS_PRB_PROTO_READ);
1080 } else
1081 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
1082 ctp->protocol_override |=
1083 htole16(SIIS_PRB_PROTO_WRITE);
1084 }
1085 }
1086 } else if (ccb->ccb_h.func_code == XPT_SCSI_IO) {
1087 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
1088 ctp->control |= htole16(SIIS_PRB_PACKET_READ);
1089 else
1090 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT)
1091 ctp->control |= htole16(SIIS_PRB_PACKET_WRITE);
1092 }
1093 /* Special handling for Soft Reset command. */
1094 if ((ccb->ccb_h.func_code == XPT_ATA_IO) &&
1095 (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) &&
1096 (ccb->ataio.cmd.control & ATA_A_RESET)) {
1097 /* Kick controller into sane state */
1098 siis_portinit(dev);
1099 }
1100 /* Setup the FIS for this request */
1101 if (!siis_setup_fis(dev, ctp, ccb, slot->slot)) {
1102 device_printf(ch->dev, "Setting up SATA FIS failed\n");
1103 if (!ch->recoverycmd)
1104 xpt_freeze_simq(ch->sim, 1);
1105 siis_end_transaction(slot, SIIS_ERR_INVALID);
1106 return;
1107 }
1108 bus_dmamap_sync(ch->dma.work_tag, ch->dma.work_map,
1109 BUS_DMASYNC_PREWRITE);
1110 /* Issue command to the controller. */
1111 slot->state = SIIS_SLOT_RUNNING;
1112 ch->rslots |= (1 << slot->slot);
1113 prb_bus = ch->dma.work_bus + slot->prb_offset;
1114 ATA_OUTL(ch->r_mem, SIIS_P_CACTL(slot->slot), prb_bus);
1115 ATA_OUTL(ch->r_mem, SIIS_P_CACTH(slot->slot), prb_bus >> 32);
1116 /* Start command execution timeout */
1117 callout_reset_sbt(&slot->timeout, SBT_1MS * ccb->ccb_h.timeout, 0,
1118 siis_timeout, slot, 0);
1119 return;
1120 }
1121
1122 /* Must be called with channel locked. */
1123 static void
siis_process_timeout(device_t dev)1124 siis_process_timeout(device_t dev)
1125 {
1126 struct siis_channel *ch = device_get_softc(dev);
1127 int i;
1128
1129 mtx_assert(&ch->mtx, MA_OWNED);
1130 if (!ch->recoverycmd && !ch->recovery) {
1131 xpt_freeze_simq(ch->sim, ch->numrslots);
1132 ch->recovery = 1;
1133 }
1134 /* Handle the rest of commands. */
1135 for (i = 0; i < SIIS_MAX_SLOTS; i++) {
1136 /* Do we have a running request on slot? */
1137 if (ch->slot[i].state < SIIS_SLOT_RUNNING)
1138 continue;
1139 siis_end_transaction(&ch->slot[i], SIIS_ERR_TIMEOUT);
1140 }
1141 }
1142
1143 /* Must be called with channel locked. */
1144 static void
siis_rearm_timeout(device_t dev)1145 siis_rearm_timeout(device_t dev)
1146 {
1147 struct siis_channel *ch = device_get_softc(dev);
1148 int i;
1149
1150 mtx_assert(&ch->mtx, MA_OWNED);
1151 for (i = 0; i < SIIS_MAX_SLOTS; i++) {
1152 struct siis_slot *slot = &ch->slot[i];
1153
1154 /* Do we have a running request on slot? */
1155 if (slot->state < SIIS_SLOT_RUNNING)
1156 continue;
1157 if ((ch->toslots & (1 << i)) == 0)
1158 continue;
1159 callout_reset_sbt(&slot->timeout,
1160 SBT_1MS * slot->ccb->ccb_h.timeout, 0,
1161 siis_timeout, slot, 0);
1162 }
1163 }
1164
1165 /* Locked by callout mechanism. */
1166 static void
siis_timeout(void * arg)1167 siis_timeout(void *arg)
1168 {
1169 struct siis_slot *slot = arg;
1170 device_t dev = slot->dev;
1171 struct siis_channel *ch = device_get_softc(dev);
1172 union ccb *ccb = slot->ccb;
1173
1174 mtx_assert(&ch->mtx, MA_OWNED);
1175 /* Check for stale timeout. */
1176 if (slot->state < SIIS_SLOT_RUNNING)
1177 return;
1178
1179 /* Handle soft-reset timeouts without doing hard-reset. */
1180 if ((ccb->ccb_h.func_code == XPT_ATA_IO) &&
1181 (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) &&
1182 (ccb->ataio.cmd.control & ATA_A_RESET)) {
1183 xpt_freeze_simq(ch->sim, ch->numrslots);
1184 siis_end_transaction(slot, SIIS_ERR_TFE);
1185 return;
1186 }
1187
1188 device_printf(dev, "Timeout on slot %d\n", slot->slot);
1189 device_printf(dev, "%s is %08x ss %08x rs %08x es %08x sts %08x serr %08x\n",
1190 __func__, ATA_INL(ch->r_mem, SIIS_P_IS),
1191 ATA_INL(ch->r_mem, SIIS_P_SS), ch->rslots,
1192 ATA_INL(ch->r_mem, SIIS_P_CMDERR), ATA_INL(ch->r_mem, SIIS_P_STS),
1193 ATA_INL(ch->r_mem, SIIS_P_SERR));
1194
1195 if (ch->toslots == 0)
1196 xpt_freeze_simq(ch->sim, 1);
1197 ch->toslots |= (1 << slot->slot);
1198 if ((ch->rslots & ~ch->toslots) == 0)
1199 siis_process_timeout(dev);
1200 else
1201 device_printf(dev, " ... waiting for slots %08x\n",
1202 ch->rslots & ~ch->toslots);
1203 }
1204
1205 /* Must be called with channel locked. */
1206 static void
siis_end_transaction(struct siis_slot * slot,enum siis_err_type et)1207 siis_end_transaction(struct siis_slot *slot, enum siis_err_type et)
1208 {
1209 device_t dev = slot->dev;
1210 struct siis_channel *ch = device_get_softc(dev);
1211 union ccb *ccb = slot->ccb;
1212 int lastto;
1213
1214 mtx_assert(&ch->mtx, MA_OWNED);
1215 bus_dmamap_sync(ch->dma.work_tag, ch->dma.work_map,
1216 BUS_DMASYNC_POSTWRITE);
1217 /* Read result registers to the result struct
1218 * May be incorrect if several commands finished same time,
1219 * so read only when sure or have to.
1220 */
1221 if (ccb->ccb_h.func_code == XPT_ATA_IO) {
1222 struct ata_res *res = &ccb->ataio.res;
1223 if ((et == SIIS_ERR_TFE) ||
1224 (ccb->ataio.cmd.flags & CAM_ATAIO_NEEDRESULT)) {
1225 int offs = SIIS_P_LRAM_SLOT(slot->slot) + 8;
1226
1227 res->status = ATA_INB(ch->r_mem, offs + 2);
1228 res->error = ATA_INB(ch->r_mem, offs + 3);
1229 res->lba_low = ATA_INB(ch->r_mem, offs + 4);
1230 res->lba_mid = ATA_INB(ch->r_mem, offs + 5);
1231 res->lba_high = ATA_INB(ch->r_mem, offs + 6);
1232 res->device = ATA_INB(ch->r_mem, offs + 7);
1233 res->lba_low_exp = ATA_INB(ch->r_mem, offs + 8);
1234 res->lba_mid_exp = ATA_INB(ch->r_mem, offs + 9);
1235 res->lba_high_exp = ATA_INB(ch->r_mem, offs + 10);
1236 res->sector_count = ATA_INB(ch->r_mem, offs + 12);
1237 res->sector_count_exp = ATA_INB(ch->r_mem, offs + 13);
1238 } else
1239 bzero(res, sizeof(*res));
1240 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN &&
1241 ch->numrslots == 1) {
1242 ccb->ataio.resid = ccb->ataio.dxfer_len -
1243 ATA_INL(ch->r_mem, SIIS_P_LRAM_SLOT(slot->slot) + 4);
1244 }
1245 } else {
1246 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN &&
1247 ch->numrslots == 1) {
1248 ccb->csio.resid = ccb->csio.dxfer_len -
1249 ATA_INL(ch->r_mem, SIIS_P_LRAM_SLOT(slot->slot) + 4);
1250 }
1251 }
1252 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
1253 bus_dmamap_sync(ch->dma.data_tag, slot->dma.data_map,
1254 (ccb->ccb_h.flags & CAM_DIR_IN) ?
1255 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE);
1256 bus_dmamap_unload(ch->dma.data_tag, slot->dma.data_map);
1257 }
1258 /* Set proper result status. */
1259 if (et != SIIS_ERR_NONE || ch->recovery) {
1260 ch->eslots |= (1 << slot->slot);
1261 ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
1262 }
1263 /* In case of error, freeze device for proper recovery. */
1264 if (et != SIIS_ERR_NONE && (!ch->recoverycmd) &&
1265 !(ccb->ccb_h.status & CAM_DEV_QFRZN)) {
1266 xpt_freeze_devq(ccb->ccb_h.path, 1);
1267 ccb->ccb_h.status |= CAM_DEV_QFRZN;
1268 }
1269 ccb->ccb_h.status &= ~CAM_STATUS_MASK;
1270 switch (et) {
1271 case SIIS_ERR_NONE:
1272 ccb->ccb_h.status |= CAM_REQ_CMP;
1273 if (ccb->ccb_h.func_code == XPT_SCSI_IO)
1274 ccb->csio.scsi_status = SCSI_STATUS_OK;
1275 break;
1276 case SIIS_ERR_INVALID:
1277 ch->fatalerr = 1;
1278 ccb->ccb_h.status |= CAM_REQ_INVALID;
1279 break;
1280 case SIIS_ERR_INNOCENT:
1281 ccb->ccb_h.status |= CAM_REQUEUE_REQ;
1282 break;
1283 case SIIS_ERR_TFE:
1284 case SIIS_ERR_NCQ:
1285 if (ccb->ccb_h.func_code == XPT_SCSI_IO) {
1286 ccb->ccb_h.status |= CAM_SCSI_STATUS_ERROR;
1287 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND;
1288 } else {
1289 ccb->ccb_h.status |= CAM_ATA_STATUS_ERROR;
1290 }
1291 break;
1292 case SIIS_ERR_SATA:
1293 ch->fatalerr = 1;
1294 ccb->ccb_h.status |= CAM_UNCOR_PARITY;
1295 break;
1296 case SIIS_ERR_TIMEOUT:
1297 ch->fatalerr = 1;
1298 ccb->ccb_h.status |= CAM_CMD_TIMEOUT;
1299 break;
1300 default:
1301 ccb->ccb_h.status |= CAM_REQ_CMP_ERR;
1302 }
1303 /* Free slot. */
1304 ch->oslots &= ~(1 << slot->slot);
1305 ch->rslots &= ~(1 << slot->slot);
1306 ch->aslots &= ~(1 << slot->slot);
1307 slot->state = SIIS_SLOT_EMPTY;
1308 slot->ccb = NULL;
1309 /* Update channel stats. */
1310 ch->numrslots--;
1311 if ((ccb->ccb_h.func_code == XPT_ATA_IO) &&
1312 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) {
1313 ch->numtslots[ccb->ccb_h.target_id]--;
1314 }
1315 /* Cancel timeout state if request completed normally. */
1316 if (et != SIIS_ERR_TIMEOUT) {
1317 lastto = (ch->toslots == (1 << slot->slot));
1318 ch->toslots &= ~(1 << slot->slot);
1319 if (lastto)
1320 xpt_release_simq(ch->sim, TRUE);
1321 }
1322 /* If it was our READ LOG command - process it. */
1323 if (ccb->ccb_h.recovery_type == RECOVERY_READ_LOG) {
1324 siis_process_read_log(dev, ccb);
1325 /* If it was our REQUEST SENSE command - process it. */
1326 } else if (ccb->ccb_h.recovery_type == RECOVERY_REQUEST_SENSE) {
1327 siis_process_request_sense(dev, ccb);
1328 /* If it was NCQ or ATAPI command error, put result on hold. */
1329 } else if (et == SIIS_ERR_NCQ ||
1330 ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_SCSI_STATUS_ERROR &&
1331 (ccb->ccb_h.flags & CAM_DIS_AUTOSENSE) == 0)) {
1332 ch->hold[slot->slot] = ccb;
1333 ch->numhslots++;
1334 } else
1335 xpt_done(ccb);
1336 /* If we have no other active commands, ... */
1337 if (ch->rslots == 0) {
1338 /* if there were timeouts or fatal error - reset port. */
1339 if (ch->toslots != 0 || ch->fatalerr) {
1340 siis_reset(dev);
1341 } else {
1342 /* if we have slots in error, we can reinit port. */
1343 if (ch->eslots != 0)
1344 siis_portinit(dev);
1345 /* if there commands on hold, we can do recovery. */
1346 if (!ch->recoverycmd && ch->numhslots)
1347 siis_issue_recovery(dev);
1348 }
1349 /* If all the reset of commands are in timeout - abort them. */
1350 } else if ((ch->rslots & ~ch->toslots) == 0 &&
1351 et != SIIS_ERR_TIMEOUT)
1352 siis_rearm_timeout(dev);
1353 /* Unfreeze frozen command. */
1354 if (ch->frozen && !siis_check_collision(dev, ch->frozen)) {
1355 union ccb *fccb = ch->frozen;
1356 ch->frozen = NULL;
1357 siis_begin_transaction(dev, fccb);
1358 xpt_release_simq(ch->sim, TRUE);
1359 }
1360 }
1361
1362 static void
siis_issue_recovery(device_t dev)1363 siis_issue_recovery(device_t dev)
1364 {
1365 struct siis_channel *ch = device_get_softc(dev);
1366 union ccb *ccb;
1367 struct ccb_ataio *ataio;
1368 struct ccb_scsiio *csio;
1369 int i;
1370
1371 /* Find some held command. */
1372 for (i = 0; i < SIIS_MAX_SLOTS; i++) {
1373 if (ch->hold[i])
1374 break;
1375 }
1376 if (i == SIIS_MAX_SLOTS)
1377 return;
1378 ccb = xpt_alloc_ccb_nowait();
1379 if (ccb == NULL) {
1380 device_printf(dev, "Unable to allocate recovery command\n");
1381 completeall:
1382 /* We can't do anything -- complete held commands. */
1383 for (i = 0; i < SIIS_MAX_SLOTS; i++) {
1384 if (ch->hold[i] == NULL)
1385 continue;
1386 ch->hold[i]->ccb_h.status &= ~CAM_STATUS_MASK;
1387 ch->hold[i]->ccb_h.status |= CAM_RESRC_UNAVAIL;
1388 xpt_done(ch->hold[i]);
1389 ch->hold[i] = NULL;
1390 ch->numhslots--;
1391 }
1392 siis_reset(dev);
1393 return;
1394 }
1395 xpt_setup_ccb(&ccb->ccb_h, ch->hold[i]->ccb_h.path,
1396 ch->hold[i]->ccb_h.pinfo.priority);
1397 if (ch->hold[i]->ccb_h.func_code == XPT_ATA_IO) {
1398 /* READ LOG */
1399 ccb->ccb_h.recovery_type = RECOVERY_READ_LOG;
1400 ccb->ccb_h.func_code = XPT_ATA_IO;
1401 ccb->ccb_h.flags = CAM_DIR_IN;
1402 ccb->ccb_h.timeout = 1000; /* 1s should be enough. */
1403 ataio = &ccb->ataio;
1404 ataio->data_ptr = malloc(512, M_SIIS, M_NOWAIT);
1405 if (ataio->data_ptr == NULL) {
1406 xpt_free_ccb(ccb);
1407 device_printf(dev,
1408 "Unable to allocate memory for READ LOG command\n");
1409 goto completeall;
1410 }
1411 ataio->dxfer_len = 512;
1412 bzero(&ataio->cmd, sizeof(ataio->cmd));
1413 ataio->cmd.flags = CAM_ATAIO_48BIT;
1414 ataio->cmd.command = 0x2F; /* READ LOG EXT */
1415 ataio->cmd.sector_count = 1;
1416 ataio->cmd.sector_count_exp = 0;
1417 ataio->cmd.lba_low = 0x10;
1418 ataio->cmd.lba_mid = 0;
1419 ataio->cmd.lba_mid_exp = 0;
1420 } else {
1421 /* REQUEST SENSE */
1422 ccb->ccb_h.recovery_type = RECOVERY_REQUEST_SENSE;
1423 ccb->ccb_h.recovery_slot = i;
1424 ccb->ccb_h.func_code = XPT_SCSI_IO;
1425 ccb->ccb_h.flags = CAM_DIR_IN;
1426 ccb->ccb_h.status = 0;
1427 ccb->ccb_h.timeout = 1000; /* 1s should be enough. */
1428 csio = &ccb->csio;
1429 csio->data_ptr = (void *)&ch->hold[i]->csio.sense_data;
1430 csio->dxfer_len = ch->hold[i]->csio.sense_len;
1431 csio->cdb_len = 6;
1432 bzero(&csio->cdb_io, sizeof(csio->cdb_io));
1433 csio->cdb_io.cdb_bytes[0] = 0x03;
1434 csio->cdb_io.cdb_bytes[4] = csio->dxfer_len;
1435 }
1436 ch->recoverycmd = 1;
1437 siis_begin_transaction(dev, ccb);
1438 }
1439
1440 static void
siis_process_read_log(device_t dev,union ccb * ccb)1441 siis_process_read_log(device_t dev, union ccb *ccb)
1442 {
1443 struct siis_channel *ch = device_get_softc(dev);
1444 uint8_t *data;
1445 struct ata_res *res;
1446 int i;
1447
1448 ch->recoverycmd = 0;
1449 data = ccb->ataio.data_ptr;
1450 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP &&
1451 (data[0] & 0x80) == 0) {
1452 for (i = 0; i < SIIS_MAX_SLOTS; i++) {
1453 if (!ch->hold[i])
1454 continue;
1455 if (ch->hold[i]->ccb_h.target_id != ccb->ccb_h.target_id)
1456 continue;
1457 if ((data[0] & 0x1F) == i) {
1458 res = &ch->hold[i]->ataio.res;
1459 res->status = data[2];
1460 res->error = data[3];
1461 res->lba_low = data[4];
1462 res->lba_mid = data[5];
1463 res->lba_high = data[6];
1464 res->device = data[7];
1465 res->lba_low_exp = data[8];
1466 res->lba_mid_exp = data[9];
1467 res->lba_high_exp = data[10];
1468 res->sector_count = data[12];
1469 res->sector_count_exp = data[13];
1470 } else {
1471 ch->hold[i]->ccb_h.status &= ~CAM_STATUS_MASK;
1472 ch->hold[i]->ccb_h.status |= CAM_REQUEUE_REQ;
1473 }
1474 xpt_done(ch->hold[i]);
1475 ch->hold[i] = NULL;
1476 ch->numhslots--;
1477 }
1478 } else {
1479 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP)
1480 device_printf(dev, "Error while READ LOG EXT\n");
1481 else if ((data[0] & 0x80) == 0) {
1482 device_printf(dev, "Non-queued command error in READ LOG EXT\n");
1483 }
1484 for (i = 0; i < SIIS_MAX_SLOTS; i++) {
1485 if (!ch->hold[i])
1486 continue;
1487 if (ch->hold[i]->ccb_h.target_id != ccb->ccb_h.target_id)
1488 continue;
1489 xpt_done(ch->hold[i]);
1490 ch->hold[i] = NULL;
1491 ch->numhslots--;
1492 }
1493 }
1494 free(ccb->ataio.data_ptr, M_SIIS);
1495 xpt_free_ccb(ccb);
1496 }
1497
1498 static void
siis_process_request_sense(device_t dev,union ccb * ccb)1499 siis_process_request_sense(device_t dev, union ccb *ccb)
1500 {
1501 struct siis_channel *ch = device_get_softc(dev);
1502 int i;
1503
1504 ch->recoverycmd = 0;
1505
1506 i = ccb->ccb_h.recovery_slot;
1507 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
1508 ch->hold[i]->ccb_h.status |= CAM_AUTOSNS_VALID;
1509 } else {
1510 ch->hold[i]->ccb_h.status &= ~CAM_STATUS_MASK;
1511 ch->hold[i]->ccb_h.status |= CAM_AUTOSENSE_FAIL;
1512 }
1513 xpt_done(ch->hold[i]);
1514 ch->hold[i] = NULL;
1515 ch->numhslots--;
1516 xpt_free_ccb(ccb);
1517 }
1518
1519 static void
siis_portinit(device_t dev)1520 siis_portinit(device_t dev)
1521 {
1522 struct siis_channel *ch = device_get_softc(dev);
1523 int i;
1524
1525 ch->eslots = 0;
1526 ch->recovery = 0;
1527 ATA_OUTL(ch->r_mem, SIIS_P_CTLCLR, SIIS_P_CTL_RESUME);
1528 for (i = 0; i < 16; i++) {
1529 ATA_OUTL(ch->r_mem, SIIS_P_PMPSTS(i), 0),
1530 ATA_OUTL(ch->r_mem, SIIS_P_PMPQACT(i), 0);
1531 }
1532 ATA_OUTL(ch->r_mem, SIIS_P_CTLSET, SIIS_P_CTL_PORT_INIT);
1533 siis_wait_ready(dev, 1000);
1534 }
1535
1536 static int
siis_devreset(device_t dev)1537 siis_devreset(device_t dev)
1538 {
1539 struct siis_channel *ch = device_get_softc(dev);
1540 int timeout = 0;
1541 uint32_t val;
1542
1543 ATA_OUTL(ch->r_mem, SIIS_P_CTLSET, SIIS_P_CTL_DEV_RESET);
1544 while (((val = ATA_INL(ch->r_mem, SIIS_P_STS)) &
1545 SIIS_P_CTL_DEV_RESET) != 0) {
1546 DELAY(100);
1547 if (timeout++ > 1000) {
1548 device_printf(dev, "device reset stuck "
1549 "(timeout 100ms) status = %08x\n", val);
1550 return (EBUSY);
1551 }
1552 }
1553 return (0);
1554 }
1555
1556 static int
siis_wait_ready(device_t dev,int t)1557 siis_wait_ready(device_t dev, int t)
1558 {
1559 struct siis_channel *ch = device_get_softc(dev);
1560 int timeout = 0;
1561 uint32_t val;
1562
1563 while (((val = ATA_INL(ch->r_mem, SIIS_P_STS)) &
1564 SIIS_P_CTL_READY) == 0) {
1565 DELAY(1000);
1566 if (timeout++ > t) {
1567 device_printf(dev, "port is not ready (timeout %dms) "
1568 "status = %08x\n", t, val);
1569 return (EBUSY);
1570 }
1571 }
1572 return (0);
1573 }
1574
1575 static void
siis_reset(device_t dev)1576 siis_reset(device_t dev)
1577 {
1578 struct siis_channel *ch = device_get_softc(dev);
1579 int i, retry = 0, sata_rev;
1580 uint32_t val;
1581
1582 xpt_freeze_simq(ch->sim, 1);
1583 if (bootverbose)
1584 device_printf(dev, "SIIS reset...\n");
1585 if (!ch->recoverycmd && !ch->recovery)
1586 xpt_freeze_simq(ch->sim, ch->numrslots);
1587 /* Requeue frozen command. */
1588 if (ch->frozen) {
1589 union ccb *fccb = ch->frozen;
1590 ch->frozen = NULL;
1591 fccb->ccb_h.status &= ~CAM_STATUS_MASK;
1592 fccb->ccb_h.status |= CAM_REQUEUE_REQ | CAM_RELEASE_SIMQ;
1593 if (!(fccb->ccb_h.status & CAM_DEV_QFRZN)) {
1594 xpt_freeze_devq(fccb->ccb_h.path, 1);
1595 fccb->ccb_h.status |= CAM_DEV_QFRZN;
1596 }
1597 xpt_done(fccb);
1598 }
1599 /* Requeue all running commands. */
1600 for (i = 0; i < SIIS_MAX_SLOTS; i++) {
1601 /* Do we have a running request on slot? */
1602 if (ch->slot[i].state < SIIS_SLOT_RUNNING)
1603 continue;
1604 /* XXX; Commands in loading state. */
1605 siis_end_transaction(&ch->slot[i], SIIS_ERR_INNOCENT);
1606 }
1607 /* Finish all held commands as-is. */
1608 for (i = 0; i < SIIS_MAX_SLOTS; i++) {
1609 if (!ch->hold[i])
1610 continue;
1611 xpt_done(ch->hold[i]);
1612 ch->hold[i] = NULL;
1613 ch->numhslots--;
1614 }
1615 if (ch->toslots != 0)
1616 xpt_release_simq(ch->sim, TRUE);
1617 ch->eslots = 0;
1618 ch->recovery = 0;
1619 ch->toslots = 0;
1620 ch->fatalerr = 0;
1621 /* Disable port interrupts */
1622 ATA_OUTL(ch->r_mem, SIIS_P_IECLR, 0x0000FFFF);
1623 /* Set speed limit. */
1624 sata_rev = ch->user[ch->pm_present ? 15 : 0].revision;
1625 if (sata_rev == 1)
1626 val = ATA_SC_SPD_SPEED_GEN1;
1627 else if (sata_rev == 2)
1628 val = ATA_SC_SPD_SPEED_GEN2;
1629 else if (sata_rev == 3)
1630 val = ATA_SC_SPD_SPEED_GEN3;
1631 else
1632 val = 0;
1633 ATA_OUTL(ch->r_mem, SIIS_P_SCTL,
1634 ATA_SC_DET_IDLE | val | ((ch->pm_level > 0) ? 0 :
1635 (ATA_SC_IPM_DIS_PARTIAL | ATA_SC_IPM_DIS_SLUMBER)));
1636 retry:
1637 siis_devreset(dev);
1638 /* Reset and reconnect PHY, */
1639 if (!siis_sata_connect(ch)) {
1640 ch->devices = 0;
1641 /* Enable port interrupts */
1642 ATA_OUTL(ch->r_mem, SIIS_P_IESET, SIIS_P_IX_ENABLED);
1643 if (bootverbose)
1644 device_printf(dev,
1645 "SIIS reset done: phy reset found no device\n");
1646 /* Tell the XPT about the event */
1647 xpt_async(AC_BUS_RESET, ch->path, NULL);
1648 xpt_release_simq(ch->sim, TRUE);
1649 return;
1650 }
1651 /* Wait for port ready status. */
1652 if (siis_wait_ready(dev, 1000)) {
1653 device_printf(dev, "port ready timeout\n");
1654 if (!retry) {
1655 device_printf(dev, "trying full port reset ...\n");
1656 /* Get port to the reset state. */
1657 ATA_OUTL(ch->r_mem, SIIS_P_CTLSET, SIIS_P_CTL_PORT_RESET);
1658 DELAY(10000);
1659 /* Get port out of reset state. */
1660 ATA_OUTL(ch->r_mem, SIIS_P_CTLCLR, SIIS_P_CTL_PORT_RESET);
1661 ATA_OUTL(ch->r_mem, SIIS_P_CTLCLR, SIIS_P_CTL_32BIT);
1662 if (ch->pm_present)
1663 ATA_OUTL(ch->r_mem, SIIS_P_CTLSET, SIIS_P_CTL_PME);
1664 else
1665 ATA_OUTL(ch->r_mem, SIIS_P_CTLCLR, SIIS_P_CTL_PME);
1666 siis_wait_ready(dev, 5000);
1667 retry = 1;
1668 goto retry;
1669 }
1670 }
1671 ch->devices = 1;
1672 /* Enable port interrupts */
1673 ATA_OUTL(ch->r_mem, SIIS_P_IS, 0xFFFFFFFF);
1674 ATA_OUTL(ch->r_mem, SIIS_P_IESET, SIIS_P_IX_ENABLED);
1675 if (bootverbose)
1676 device_printf(dev, "SIIS reset done: devices=%08x\n", ch->devices);
1677 /* Tell the XPT about the event */
1678 xpt_async(AC_BUS_RESET, ch->path, NULL);
1679 xpt_release_simq(ch->sim, TRUE);
1680 }
1681
1682 static int
siis_setup_fis(device_t dev,struct siis_cmd * ctp,union ccb * ccb,int tag)1683 siis_setup_fis(device_t dev, struct siis_cmd *ctp, union ccb *ccb, int tag)
1684 {
1685 struct siis_channel *ch = device_get_softc(dev);
1686 u_int8_t *fis = &ctp->fis[0];
1687
1688 bzero(fis, 24);
1689 fis[0] = 0x27; /* host to device */
1690 fis[1] = (ccb->ccb_h.target_id & 0x0f);
1691 if (ccb->ccb_h.func_code == XPT_SCSI_IO) {
1692 fis[1] |= 0x80;
1693 fis[2] = ATA_PACKET_CMD;
1694 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE &&
1695 ch->curr[ccb->ccb_h.target_id].mode >= ATA_DMA)
1696 fis[3] = ATA_F_DMA;
1697 else {
1698 fis[5] = ccb->csio.dxfer_len;
1699 fis[6] = ccb->csio.dxfer_len >> 8;
1700 }
1701 fis[7] = ATA_D_LBA;
1702 fis[15] = ATA_A_4BIT;
1703 bzero(ctp->u.atapi.ccb, 16);
1704 bcopy((ccb->ccb_h.flags & CAM_CDB_POINTER) ?
1705 ccb->csio.cdb_io.cdb_ptr : ccb->csio.cdb_io.cdb_bytes,
1706 ctp->u.atapi.ccb, ccb->csio.cdb_len);
1707 } else if ((ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) == 0) {
1708 fis[1] |= 0x80;
1709 fis[2] = ccb->ataio.cmd.command;
1710 fis[3] = ccb->ataio.cmd.features;
1711 fis[4] = ccb->ataio.cmd.lba_low;
1712 fis[5] = ccb->ataio.cmd.lba_mid;
1713 fis[6] = ccb->ataio.cmd.lba_high;
1714 fis[7] = ccb->ataio.cmd.device;
1715 fis[8] = ccb->ataio.cmd.lba_low_exp;
1716 fis[9] = ccb->ataio.cmd.lba_mid_exp;
1717 fis[10] = ccb->ataio.cmd.lba_high_exp;
1718 fis[11] = ccb->ataio.cmd.features_exp;
1719 fis[12] = ccb->ataio.cmd.sector_count;
1720 if (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA) {
1721 fis[12] &= 0x07;
1722 fis[12] |= tag << 3;
1723 }
1724 fis[13] = ccb->ataio.cmd.sector_count_exp;
1725 if (ccb->ataio.ata_flags & ATA_FLAG_ICC)
1726 fis[14] = ccb->ataio.icc;
1727 fis[15] = ATA_A_4BIT;
1728 if (ccb->ataio.ata_flags & ATA_FLAG_AUX) {
1729 fis[16] = ccb->ataio.aux & 0xff;
1730 fis[17] = (ccb->ataio.aux >> 8) & 0xff;
1731 fis[18] = (ccb->ataio.aux >> 16) & 0xff;
1732 fis[19] = (ccb->ataio.aux >> 24) & 0xff;
1733 }
1734 } else {
1735 /* Soft reset. */
1736 }
1737 return (20);
1738 }
1739
1740 static int
siis_sata_connect(struct siis_channel * ch)1741 siis_sata_connect(struct siis_channel *ch)
1742 {
1743 u_int32_t status;
1744 int timeout, found = 0;
1745
1746 /* Wait up to 100ms for "connect well" */
1747 for (timeout = 0; timeout < 1000 ; timeout++) {
1748 status = ATA_INL(ch->r_mem, SIIS_P_SSTS);
1749 if ((status & ATA_SS_DET_MASK) != ATA_SS_DET_NO_DEVICE)
1750 found = 1;
1751 if (((status & ATA_SS_DET_MASK) == ATA_SS_DET_PHY_ONLINE) &&
1752 ((status & ATA_SS_SPD_MASK) != ATA_SS_SPD_NO_SPEED) &&
1753 ((status & ATA_SS_IPM_MASK) == ATA_SS_IPM_ACTIVE))
1754 break;
1755 if ((status & ATA_SS_DET_MASK) == ATA_SS_DET_PHY_OFFLINE) {
1756 if (bootverbose) {
1757 device_printf(ch->dev, "SATA offline status=%08x\n",
1758 status);
1759 }
1760 return (0);
1761 }
1762 if (found == 0 && timeout >= 100)
1763 break;
1764 DELAY(100);
1765 }
1766 if (timeout >= 1000 || !found) {
1767 if (bootverbose) {
1768 device_printf(ch->dev,
1769 "SATA connect timeout time=%dus status=%08x\n",
1770 timeout * 100, status);
1771 }
1772 return (0);
1773 }
1774 if (bootverbose) {
1775 device_printf(ch->dev, "SATA connect time=%dus status=%08x\n",
1776 timeout * 100, status);
1777 }
1778 /* Clear SATA error register */
1779 ATA_OUTL(ch->r_mem, SIIS_P_SERR, 0xffffffff);
1780 return (1);
1781 }
1782
1783 static int
siis_check_ids(device_t dev,union ccb * ccb)1784 siis_check_ids(device_t dev, union ccb *ccb)
1785 {
1786
1787 if (ccb->ccb_h.target_id > 15) {
1788 ccb->ccb_h.status = CAM_TID_INVALID;
1789 xpt_done(ccb);
1790 return (-1);
1791 }
1792 if (ccb->ccb_h.target_lun != 0) {
1793 ccb->ccb_h.status = CAM_LUN_INVALID;
1794 xpt_done(ccb);
1795 return (-1);
1796 }
1797 return (0);
1798 }
1799
1800 static void
siisaction(struct cam_sim * sim,union ccb * ccb)1801 siisaction(struct cam_sim *sim, union ccb *ccb)
1802 {
1803 device_t dev, parent;
1804 struct siis_channel *ch;
1805
1806 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("siisaction func_code=%x\n",
1807 ccb->ccb_h.func_code));
1808
1809 ch = (struct siis_channel *)cam_sim_softc(sim);
1810 dev = ch->dev;
1811 mtx_assert(&ch->mtx, MA_OWNED);
1812 switch (ccb->ccb_h.func_code) {
1813 /* Common cases first */
1814 case XPT_ATA_IO: /* Execute the requested I/O operation */
1815 case XPT_SCSI_IO:
1816 if (siis_check_ids(dev, ccb))
1817 return;
1818 if (ch->devices == 0 ||
1819 (ch->pm_present == 0 &&
1820 ccb->ccb_h.target_id > 0 && ccb->ccb_h.target_id < 15)) {
1821 ccb->ccb_h.status = CAM_SEL_TIMEOUT;
1822 break;
1823 }
1824 ccb->ccb_h.recovery_type = RECOVERY_NONE;
1825 /* Check for command collision. */
1826 if (siis_check_collision(dev, ccb)) {
1827 /* Freeze command. */
1828 ch->frozen = ccb;
1829 /* We have only one frozen slot, so freeze simq also. */
1830 xpt_freeze_simq(ch->sim, 1);
1831 return;
1832 }
1833 siis_begin_transaction(dev, ccb);
1834 return;
1835 case XPT_ABORT: /* Abort the specified CCB */
1836 /* XXX Implement */
1837 ccb->ccb_h.status = CAM_REQ_INVALID;
1838 break;
1839 case XPT_SET_TRAN_SETTINGS:
1840 {
1841 struct ccb_trans_settings *cts = &ccb->cts;
1842 struct siis_device *d;
1843
1844 if (siis_check_ids(dev, ccb))
1845 return;
1846 if (cts->type == CTS_TYPE_CURRENT_SETTINGS)
1847 d = &ch->curr[ccb->ccb_h.target_id];
1848 else
1849 d = &ch->user[ccb->ccb_h.target_id];
1850 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_REVISION)
1851 d->revision = cts->xport_specific.sata.revision;
1852 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_MODE)
1853 d->mode = cts->xport_specific.sata.mode;
1854 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_BYTECOUNT)
1855 d->bytecount = min(8192, cts->xport_specific.sata.bytecount);
1856 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_TAGS)
1857 d->tags = min(SIIS_MAX_SLOTS, cts->xport_specific.sata.tags);
1858 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_PM) {
1859 ch->pm_present = cts->xport_specific.sata.pm_present;
1860 if (ch->pm_present)
1861 ATA_OUTL(ch->r_mem, SIIS_P_CTLSET, SIIS_P_CTL_PME);
1862 else
1863 ATA_OUTL(ch->r_mem, SIIS_P_CTLCLR, SIIS_P_CTL_PME);
1864 }
1865 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_TAGS)
1866 d->atapi = cts->xport_specific.sata.atapi;
1867 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_CAPS)
1868 d->caps = cts->xport_specific.sata.caps;
1869 ccb->ccb_h.status = CAM_REQ_CMP;
1870 break;
1871 }
1872 case XPT_GET_TRAN_SETTINGS:
1873 /* Get default/user set transfer settings for the target */
1874 {
1875 struct ccb_trans_settings *cts = &ccb->cts;
1876 struct siis_device *d;
1877 uint32_t status;
1878
1879 if (siis_check_ids(dev, ccb))
1880 return;
1881 if (cts->type == CTS_TYPE_CURRENT_SETTINGS)
1882 d = &ch->curr[ccb->ccb_h.target_id];
1883 else
1884 d = &ch->user[ccb->ccb_h.target_id];
1885 cts->protocol = PROTO_UNSPECIFIED;
1886 cts->protocol_version = PROTO_VERSION_UNSPECIFIED;
1887 cts->transport = XPORT_SATA;
1888 cts->transport_version = XPORT_VERSION_UNSPECIFIED;
1889 cts->proto_specific.valid = 0;
1890 cts->xport_specific.sata.valid = 0;
1891 if (cts->type == CTS_TYPE_CURRENT_SETTINGS &&
1892 (ccb->ccb_h.target_id == 15 ||
1893 (ccb->ccb_h.target_id == 0 && !ch->pm_present))) {
1894 status = ATA_INL(ch->r_mem, SIIS_P_SSTS) & ATA_SS_SPD_MASK;
1895 if (status & 0x0f0) {
1896 cts->xport_specific.sata.revision =
1897 (status & 0x0f0) >> 4;
1898 cts->xport_specific.sata.valid |=
1899 CTS_SATA_VALID_REVISION;
1900 }
1901 cts->xport_specific.sata.caps = d->caps & CTS_SATA_CAPS_D;
1902 if (ch->pm_level)
1903 cts->xport_specific.sata.caps |= CTS_SATA_CAPS_H_PMREQ;
1904 cts->xport_specific.sata.caps |= CTS_SATA_CAPS_H_AN;
1905 cts->xport_specific.sata.caps &=
1906 ch->user[ccb->ccb_h.target_id].caps;
1907 cts->xport_specific.sata.valid |= CTS_SATA_VALID_CAPS;
1908 } else {
1909 cts->xport_specific.sata.revision = d->revision;
1910 cts->xport_specific.sata.valid |= CTS_SATA_VALID_REVISION;
1911 cts->xport_specific.sata.caps = d->caps;
1912 if (cts->type == CTS_TYPE_CURRENT_SETTINGS &&
1913 (ch->quirks & SIIS_Q_SNTF) == 0)
1914 cts->xport_specific.sata.caps &= ~CTS_SATA_CAPS_H_AN;
1915 cts->xport_specific.sata.valid |= CTS_SATA_VALID_CAPS;
1916 }
1917 cts->xport_specific.sata.mode = d->mode;
1918 cts->xport_specific.sata.valid |= CTS_SATA_VALID_MODE;
1919 cts->xport_specific.sata.bytecount = d->bytecount;
1920 cts->xport_specific.sata.valid |= CTS_SATA_VALID_BYTECOUNT;
1921 cts->xport_specific.sata.pm_present = ch->pm_present;
1922 cts->xport_specific.sata.valid |= CTS_SATA_VALID_PM;
1923 cts->xport_specific.sata.tags = d->tags;
1924 cts->xport_specific.sata.valid |= CTS_SATA_VALID_TAGS;
1925 cts->xport_specific.sata.atapi = d->atapi;
1926 cts->xport_specific.sata.valid |= CTS_SATA_VALID_ATAPI;
1927 ccb->ccb_h.status = CAM_REQ_CMP;
1928 break;
1929 }
1930 case XPT_RESET_BUS: /* Reset the specified SCSI bus */
1931 case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */
1932 siis_reset(dev);
1933 ccb->ccb_h.status = CAM_REQ_CMP;
1934 break;
1935 case XPT_TERM_IO: /* Terminate the I/O process */
1936 /* XXX Implement */
1937 ccb->ccb_h.status = CAM_REQ_INVALID;
1938 break;
1939 case XPT_PATH_INQ: /* Path routing inquiry */
1940 {
1941 struct ccb_pathinq *cpi = &ccb->cpi;
1942
1943 parent = device_get_parent(dev);
1944 cpi->version_num = 1; /* XXX??? */
1945 cpi->hba_inquiry = PI_SDTR_ABLE | PI_TAG_ABLE;
1946 cpi->hba_inquiry |= PI_SATAPM;
1947 cpi->target_sprt = 0;
1948 cpi->hba_misc = PIM_SEQSCAN | PIM_UNMAPPED | PIM_ATA_EXT;
1949 cpi->hba_eng_cnt = 0;
1950 cpi->max_target = 15;
1951 cpi->max_lun = 0;
1952 cpi->initiator_id = 0;
1953 cpi->bus_id = cam_sim_bus(sim);
1954 cpi->base_transfer_speed = 150000;
1955 strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
1956 strlcpy(cpi->hba_vid, "SIIS", HBA_IDLEN);
1957 strlcpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
1958 cpi->unit_number = cam_sim_unit(sim);
1959 cpi->transport = XPORT_SATA;
1960 cpi->transport_version = XPORT_VERSION_UNSPECIFIED;
1961 cpi->protocol = PROTO_ATA;
1962 cpi->protocol_version = PROTO_VERSION_UNSPECIFIED;
1963 cpi->maxio = maxphys;
1964 cpi->hba_vendor = pci_get_vendor(parent);
1965 cpi->hba_device = pci_get_device(parent);
1966 cpi->hba_subvendor = pci_get_subvendor(parent);
1967 cpi->hba_subdevice = pci_get_subdevice(parent);
1968 cpi->ccb_h.status = CAM_REQ_CMP;
1969 break;
1970 }
1971 default:
1972 ccb->ccb_h.status = CAM_REQ_INVALID;
1973 break;
1974 }
1975 xpt_done(ccb);
1976 }
1977
1978 static void
siispoll(struct cam_sim * sim)1979 siispoll(struct cam_sim *sim)
1980 {
1981 struct siis_channel *ch = (struct siis_channel *)cam_sim_softc(sim);
1982
1983 siis_ch_intr(ch->dev);
1984 }
1985