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qapi: Generate a nicer struct for flat unions
[qemu/ar7.git] / hw / scsi / megasas.c
bloba04369c5added90670df7bc0ae3e41d8ac835586
1 /*
2 * QEMU MegaRAID SAS 8708EM2 Host Bus Adapter emulation
3 * Based on the linux driver code at drivers/scsi/megaraid
4 *
5 * Copyright (c) 2009-2012 Hannes Reinecke, SUSE Labs
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
19 */
20
21 #include "hw/hw.h"
22 #include "hw/pci/pci.h"
23 #include "sysemu/dma.h"
24 #include "sysemu/block-backend.h"
25 #include "hw/pci/msi.h"
26 #include "hw/pci/msix.h"
27 #include "qemu/iov.h"
28 #include "hw/scsi/scsi.h"
29 #include "block/scsi.h"
30 #include "trace.h"
31
32 #include "mfi.h"
33
34 #define MEGASAS_VERSION_GEN1 "1.70"
35 #define MEGASAS_VERSION_GEN2 "1.80"
36 #define MEGASAS_MAX_FRAMES 2048 /* Firmware limit at 65535 */
37 #define MEGASAS_DEFAULT_FRAMES 1000 /* Windows requires this */
38 #define MEGASAS_GEN2_DEFAULT_FRAMES 1008 /* Windows requires this */
39 #define MEGASAS_MAX_SGE 128 /* Firmware limit */
40 #define MEGASAS_DEFAULT_SGE 80
41 #define MEGASAS_MAX_SECTORS 0xFFFF /* No real limit */
42 #define MEGASAS_MAX_ARRAYS 128
43
44 #define MEGASAS_HBA_SERIAL "QEMU123456"
45 #define NAA_LOCALLY_ASSIGNED_ID 0x3ULL
46 #define IEEE_COMPANY_LOCALLY_ASSIGNED 0x525400
47
48 #define MEGASAS_FLAG_USE_JBOD 0
49 #define MEGASAS_MASK_USE_JBOD (1 << MEGASAS_FLAG_USE_JBOD)
50 #define MEGASAS_FLAG_USE_MSI 1
51 #define MEGASAS_MASK_USE_MSI (1 << MEGASAS_FLAG_USE_MSI)
52 #define MEGASAS_FLAG_USE_MSIX 2
53 #define MEGASAS_MASK_USE_MSIX (1 << MEGASAS_FLAG_USE_MSIX)
54 #define MEGASAS_FLAG_USE_QUEUE64 3
55 #define MEGASAS_MASK_USE_QUEUE64 (1 << MEGASAS_FLAG_USE_QUEUE64)
56
57 static const char *mfi_frame_desc[] = {
58 "MFI init", "LD Read", "LD Write", "LD SCSI", "PD SCSI",
59 "MFI Doorbell", "MFI Abort", "MFI SMP", "MFI Stop"};
60
61 typedef struct MegasasCmd {
62 uint32_t index;
63 uint16_t flags;
64 uint16_t count;
65 uint64_t context;
66
67 hwaddr pa;
68 hwaddr pa_size;
69 union mfi_frame *frame;
70 SCSIRequest *req;
71 QEMUSGList qsg;
72 void *iov_buf;
73 size_t iov_size;
74 size_t iov_offset;
75 struct MegasasState *state;
76 } MegasasCmd;
77
78 typedef struct MegasasState {
79 /*< private >*/
80 PCIDevice parent_obj;
81 /*< public >*/
82
83 MemoryRegion mmio_io;
84 MemoryRegion port_io;
85 MemoryRegion queue_io;
86 uint32_t frame_hi;
87
88 int fw_state;
89 uint32_t fw_sge;
90 uint32_t fw_cmds;
91 uint32_t flags;
92 int fw_luns;
93 int intr_mask;
94 int doorbell;
95 int busy;
96 int diag;
97 int adp_reset;
98
99 MegasasCmd *event_cmd;
100 int event_locale;
101 int event_class;
102 int event_count;
103 int shutdown_event;
104 int boot_event;
105
106 uint64_t sas_addr;
107 char *hba_serial;
108
109 uint64_t reply_queue_pa;
110 void *reply_queue;
111 int reply_queue_len;
112 int reply_queue_head;
113 int reply_queue_tail;
114 uint64_t consumer_pa;
115 uint64_t producer_pa;
116
117 MegasasCmd frames[MEGASAS_MAX_FRAMES];
118 DECLARE_BITMAP(frame_map, MEGASAS_MAX_FRAMES);
119 SCSIBus bus;
120 } MegasasState;
121
122 typedef struct MegasasBaseClass {
123 PCIDeviceClass parent_class;
124 const char *product_name;
125 const char *product_version;
126 int mmio_bar;
127 int ioport_bar;
128 int osts;
129 } MegasasBaseClass;
130
131 #define TYPE_MEGASAS_BASE "megasas-base"
132 #define TYPE_MEGASAS_GEN1 "megasas"
133 #define TYPE_MEGASAS_GEN2 "megasas-gen2"
134
135 #define MEGASAS(obj) \
136 OBJECT_CHECK(MegasasState, (obj), TYPE_MEGASAS_BASE)
137
138 #define MEGASAS_DEVICE_CLASS(oc) \
139 OBJECT_CLASS_CHECK(MegasasBaseClass, (oc), TYPE_MEGASAS_BASE)
140 #define MEGASAS_DEVICE_GET_CLASS(oc) \
141 OBJECT_GET_CLASS(MegasasBaseClass, (oc), TYPE_MEGASAS_BASE)
142
143 #define MEGASAS_INTR_DISABLED_MASK 0xFFFFFFFF
144
145 static bool megasas_intr_enabled(MegasasState *s)
146 {
147 if ((s->intr_mask & MEGASAS_INTR_DISABLED_MASK) !=
148 MEGASAS_INTR_DISABLED_MASK) {
149 return true;
150 }
151 return false;
152 }
153
154 static bool megasas_use_queue64(MegasasState *s)
155 {
156 return s->flags & MEGASAS_MASK_USE_QUEUE64;
157 }
158
159 static bool megasas_use_msi(MegasasState *s)
160 {
161 return s->flags & MEGASAS_MASK_USE_MSI;
162 }
163
164 static bool megasas_use_msix(MegasasState *s)
165 {
166 return s->flags & MEGASAS_MASK_USE_MSIX;
167 }
168
169 static bool megasas_is_jbod(MegasasState *s)
170 {
171 return s->flags & MEGASAS_MASK_USE_JBOD;
172 }
173
174 static void megasas_frame_set_cmd_status(MegasasState *s,
175 unsigned long frame, uint8_t v)
176 {
177 PCIDevice *pci = &s->parent_obj;
178 stb_pci_dma(pci, frame + offsetof(struct mfi_frame_header, cmd_status), v);
179 }
180
181 static void megasas_frame_set_scsi_status(MegasasState *s,
182 unsigned long frame, uint8_t v)
183 {
184 PCIDevice *pci = &s->parent_obj;
185 stb_pci_dma(pci, frame + offsetof(struct mfi_frame_header, scsi_status), v);
186 }
187
188 /*
189 * Context is considered opaque, but the HBA firmware is running
190 * in little endian mode. So convert it to little endian, too.
191 */
192 static uint64_t megasas_frame_get_context(MegasasState *s,
193 unsigned long frame)
194 {
195 PCIDevice *pci = &s->parent_obj;
196 return ldq_le_pci_dma(pci, frame + offsetof(struct mfi_frame_header, context));
197 }
198
199 static bool megasas_frame_is_ieee_sgl(MegasasCmd *cmd)
200 {
201 return cmd->flags & MFI_FRAME_IEEE_SGL;
202 }
203
204 static bool megasas_frame_is_sgl64(MegasasCmd *cmd)
205 {
206 return cmd->flags & MFI_FRAME_SGL64;
207 }
208
209 static bool megasas_frame_is_sense64(MegasasCmd *cmd)
210 {
211 return cmd->flags & MFI_FRAME_SENSE64;
212 }
213
214 static uint64_t megasas_sgl_get_addr(MegasasCmd *cmd,
215 union mfi_sgl *sgl)
216 {
217 uint64_t addr;
218
219 if (megasas_frame_is_ieee_sgl(cmd)) {
220 addr = le64_to_cpu(sgl->sg_skinny->addr);
221 } else if (megasas_frame_is_sgl64(cmd)) {
222 addr = le64_to_cpu(sgl->sg64->addr);
223 } else {
224 addr = le32_to_cpu(sgl->sg32->addr);
225 }
226 return addr;
227 }
228
229 static uint32_t megasas_sgl_get_len(MegasasCmd *cmd,
230 union mfi_sgl *sgl)
231 {
232 uint32_t len;
233
234 if (megasas_frame_is_ieee_sgl(cmd)) {
235 len = le32_to_cpu(sgl->sg_skinny->len);
236 } else if (megasas_frame_is_sgl64(cmd)) {
237 len = le32_to_cpu(sgl->sg64->len);
238 } else {
239 len = le32_to_cpu(sgl->sg32->len);
240 }
241 return len;
242 }
243
244 static union mfi_sgl *megasas_sgl_next(MegasasCmd *cmd,
245 union mfi_sgl *sgl)
246 {
247 uint8_t *next = (uint8_t *)sgl;
248
249 if (megasas_frame_is_ieee_sgl(cmd)) {
250 next += sizeof(struct mfi_sg_skinny);
251 } else if (megasas_frame_is_sgl64(cmd)) {
252 next += sizeof(struct mfi_sg64);
253 } else {
254 next += sizeof(struct mfi_sg32);
255 }
256
257 if (next >= (uint8_t *)cmd->frame + cmd->pa_size) {
258 return NULL;
259 }
260 return (union mfi_sgl *)next;
261 }
262
263 static void megasas_soft_reset(MegasasState *s);
264
265 static int megasas_map_sgl(MegasasState *s, MegasasCmd *cmd, union mfi_sgl *sgl)
266 {
267 int i;
268 int iov_count = 0;
269 size_t iov_size = 0;
270
271 cmd->flags = le16_to_cpu(cmd->frame->header.flags);
272 iov_count = cmd->frame->header.sge_count;
273 if (iov_count > MEGASAS_MAX_SGE) {
274 trace_megasas_iovec_sgl_overflow(cmd->index, iov_count,
275 MEGASAS_MAX_SGE);
276 return iov_count;
277 }
278 pci_dma_sglist_init(&cmd->qsg, PCI_DEVICE(s), iov_count);
279 for (i = 0; i < iov_count; i++) {
280 dma_addr_t iov_pa, iov_size_p;
281
282 if (!sgl) {
283 trace_megasas_iovec_sgl_underflow(cmd->index, i);
284 goto unmap;
285 }
286 iov_pa = megasas_sgl_get_addr(cmd, sgl);
287 iov_size_p = megasas_sgl_get_len(cmd, sgl);
288 if (!iov_pa || !iov_size_p) {
289 trace_megasas_iovec_sgl_invalid(cmd->index, i,
290 iov_pa, iov_size_p);
291 goto unmap;
292 }
293 qemu_sglist_add(&cmd->qsg, iov_pa, iov_size_p);
294 sgl = megasas_sgl_next(cmd, sgl);
295 iov_size += (size_t)iov_size_p;
296 }
297 if (cmd->iov_size > iov_size) {
298 trace_megasas_iovec_overflow(cmd->index, iov_size, cmd->iov_size);
299 } else if (cmd->iov_size < iov_size) {
300 trace_megasas_iovec_underflow(cmd->iov_size, iov_size, cmd->iov_size);
301 }
302 cmd->iov_offset = 0;
303 return 0;
304 unmap:
305 qemu_sglist_destroy(&cmd->qsg);
306 return iov_count - i;
307 }
308
309 static void megasas_unmap_sgl(MegasasCmd *cmd)
310 {
311 qemu_sglist_destroy(&cmd->qsg);
312 cmd->iov_offset = 0;
313 }
314
315 /*
316 * passthrough sense and io sense are at the same offset
317 */
318 static int megasas_build_sense(MegasasCmd *cmd, uint8_t *sense_ptr,
319 uint8_t sense_len)
320 {
321 PCIDevice *pcid = PCI_DEVICE(cmd->state);
322 uint32_t pa_hi = 0, pa_lo;
323 hwaddr pa;
324
325 if (sense_len > cmd->frame->header.sense_len) {
326 sense_len = cmd->frame->header.sense_len;
327 }
328 if (sense_len) {
329 pa_lo = le32_to_cpu(cmd->frame->pass.sense_addr_lo);
330 if (megasas_frame_is_sense64(cmd)) {
331 pa_hi = le32_to_cpu(cmd->frame->pass.sense_addr_hi);
332 }
333 pa = ((uint64_t) pa_hi << 32) | pa_lo;
334 pci_dma_write(pcid, pa, sense_ptr, sense_len);
335 cmd->frame->header.sense_len = sense_len;
336 }
337 return sense_len;
338 }
339
340 static void megasas_write_sense(MegasasCmd *cmd, SCSISense sense)
341 {
342 uint8_t sense_buf[SCSI_SENSE_BUF_SIZE];
343 uint8_t sense_len = 18;
344
345 memset(sense_buf, 0, sense_len);
346 sense_buf[0] = 0xf0;
347 sense_buf[2] = sense.key;
348 sense_buf[7] = 10;
349 sense_buf[12] = sense.asc;
350 sense_buf[13] = sense.ascq;
351 megasas_build_sense(cmd, sense_buf, sense_len);
352 }
353
354 static void megasas_copy_sense(MegasasCmd *cmd)
355 {
356 uint8_t sense_buf[SCSI_SENSE_BUF_SIZE];
357 uint8_t sense_len;
358
359 sense_len = scsi_req_get_sense(cmd->req, sense_buf,
360 SCSI_SENSE_BUF_SIZE);
361 megasas_build_sense(cmd, sense_buf, sense_len);
362 }
363
364 /*
365 * Format an INQUIRY CDB
366 */
367 static int megasas_setup_inquiry(uint8_t *cdb, int pg, int len)
368 {
369 memset(cdb, 0, 6);
370 cdb[0] = INQUIRY;
371 if (pg > 0) {
372 cdb[1] = 0x1;
373 cdb[2] = pg;
374 }
375 cdb[3] = (len >> 8) & 0xff;
376 cdb[4] = (len & 0xff);
377 return len;
378 }
379
380 /*
381 * Encode lba and len into a READ_16/WRITE_16 CDB
382 */
383 static void megasas_encode_lba(uint8_t *cdb, uint64_t lba,
384 uint32_t len, bool is_write)
385 {
386 memset(cdb, 0x0, 16);
387 if (is_write) {
388 cdb[0] = WRITE_16;
389 } else {
390 cdb[0] = READ_16;
391 }
392 cdb[2] = (lba >> 56) & 0xff;
393 cdb[3] = (lba >> 48) & 0xff;
394 cdb[4] = (lba >> 40) & 0xff;
395 cdb[5] = (lba >> 32) & 0xff;
396 cdb[6] = (lba >> 24) & 0xff;
397 cdb[7] = (lba >> 16) & 0xff;
398 cdb[8] = (lba >> 8) & 0xff;
399 cdb[9] = (lba) & 0xff;
400 cdb[10] = (len >> 24) & 0xff;
401 cdb[11] = (len >> 16) & 0xff;
402 cdb[12] = (len >> 8) & 0xff;
403 cdb[13] = (len) & 0xff;
404 }
405
406 /*
407 * Utility functions
408 */
409 static uint64_t megasas_fw_time(void)
410 {
411 struct tm curtime;
412 uint64_t bcd_time;
413
414 qemu_get_timedate(&curtime, 0);
415 bcd_time = ((uint64_t)curtime.tm_sec & 0xff) << 48 |
416 ((uint64_t)curtime.tm_min & 0xff) << 40 |
417 ((uint64_t)curtime.tm_hour & 0xff) << 32 |
418 ((uint64_t)curtime.tm_mday & 0xff) << 24 |
419 ((uint64_t)curtime.tm_mon & 0xff) << 16 |
420 ((uint64_t)(curtime.tm_year + 1900) & 0xffff);
421
422 return bcd_time;
423 }
424
425 /*
426 * Default disk sata address
427 * 0x1221 is the magic number as
428 * present in real hardware,
429 * so use it here, too.
430 */
431 static uint64_t megasas_get_sata_addr(uint16_t id)
432 {
433 uint64_t addr = (0x1221ULL << 48);
434 return addr & (id << 24);
435 }
436
437 /*
438 * Frame handling
439 */
440 static int megasas_next_index(MegasasState *s, int index, int limit)
441 {
442 index++;
443 if (index == limit) {
444 index = 0;
445 }
446 return index;
447 }
448
449 static MegasasCmd *megasas_lookup_frame(MegasasState *s,
450 hwaddr frame)
451 {
452 MegasasCmd *cmd = NULL;
453 int num = 0, index;
454
455 index = s->reply_queue_head;
456
457 while (num < s->fw_cmds) {
458 if (s->frames[index].pa && s->frames[index].pa == frame) {
459 cmd = &s->frames[index];
460 break;
461 }
462 index = megasas_next_index(s, index, s->fw_cmds);
463 num++;
464 }
465
466 return cmd;
467 }
468
469 static void megasas_unmap_frame(MegasasState *s, MegasasCmd *cmd)
470 {
471 PCIDevice *p = PCI_DEVICE(s);
472
473 pci_dma_unmap(p, cmd->frame, cmd->pa_size, 0, 0);
474 cmd->frame = NULL;
475 cmd->pa = 0;
476 clear_bit(cmd->index, s->frame_map);
477 }
478
479 /*
480 * This absolutely needs to be locked if
481 * qemu ever goes multithreaded.
482 */
483 static MegasasCmd *megasas_enqueue_frame(MegasasState *s,
484 hwaddr frame, uint64_t context, int count)
485 {
486 PCIDevice *pcid = PCI_DEVICE(s);
487 MegasasCmd *cmd = NULL;
488 int frame_size = MFI_FRAME_SIZE * 16;
489 hwaddr frame_size_p = frame_size;
490 unsigned long index;
491
492 index = 0;
493 while (index < s->fw_cmds) {
494 index = find_next_zero_bit(s->frame_map, s->fw_cmds, index);
495 if (!s->frames[index].pa)
496 break;
497 /* Busy frame found */
498 trace_megasas_qf_mapped(index);
499 }
500 if (index >= s->fw_cmds) {
501 /* All frames busy */
502 trace_megasas_qf_busy(frame);
503 return NULL;
504 }
505 cmd = &s->frames[index];
506 set_bit(index, s->frame_map);
507 trace_megasas_qf_new(index, frame);
508
509 cmd->pa = frame;
510 /* Map all possible frames */
511 cmd->frame = pci_dma_map(pcid, frame, &frame_size_p, 0);
512 if (frame_size_p != frame_size) {
513 trace_megasas_qf_map_failed(cmd->index, (unsigned long)frame);
514 if (cmd->frame) {
515 megasas_unmap_frame(s, cmd);
516 }
517 s->event_count++;
518 return NULL;
519 }
520 cmd->pa_size = frame_size_p;
521 cmd->context = context;
522 if (!megasas_use_queue64(s)) {
523 cmd->context &= (uint64_t)0xFFFFFFFF;
524 }
525 cmd->count = count;
526 s->busy++;
527
528 if (s->consumer_pa) {
529 s->reply_queue_tail = ldl_le_pci_dma(pcid, s->consumer_pa);
530 }
531 trace_megasas_qf_enqueue(cmd->index, cmd->count, cmd->context,
532 s->reply_queue_head, s->reply_queue_tail, s->busy);
533
534 return cmd;
535 }
536
537 static void megasas_complete_frame(MegasasState *s, uint64_t context)
538 {
539 PCIDevice *pci_dev = PCI_DEVICE(s);
540 int tail, queue_offset;
541
542 /* Decrement busy count */
543 s->busy--;
544 if (s->reply_queue_pa) {
545 /*
546 * Put command on the reply queue.
547 * Context is opaque, but emulation is running in
548 * little endian. So convert it.
549 */
550 if (megasas_use_queue64(s)) {
551 queue_offset = s->reply_queue_head * sizeof(uint64_t);
552 stq_le_pci_dma(pci_dev, s->reply_queue_pa + queue_offset, context);
553 } else {
554 queue_offset = s->reply_queue_head * sizeof(uint32_t);
555 stl_le_pci_dma(pci_dev, s->reply_queue_pa + queue_offset, context);
556 }
557 s->reply_queue_tail = ldl_le_pci_dma(pci_dev, s->consumer_pa);
558 trace_megasas_qf_complete(context, s->reply_queue_head,
559 s->reply_queue_tail, s->busy);
560 }
561
562 if (megasas_intr_enabled(s)) {
563 /* Update reply queue pointer */
564 s->reply_queue_tail = ldl_le_pci_dma(pci_dev, s->consumer_pa);
565 tail = s->reply_queue_head;
566 s->reply_queue_head = megasas_next_index(s, tail, s->fw_cmds);
567 trace_megasas_qf_update(s->reply_queue_head, s->reply_queue_tail,
568 s->busy);
569 stl_le_pci_dma(pci_dev, s->producer_pa, s->reply_queue_head);
570 /* Notify HBA */
571 if (msix_enabled(pci_dev)) {
572 trace_megasas_msix_raise(0);
573 msix_notify(pci_dev, 0);
574 } else if (msi_enabled(pci_dev)) {
575 trace_megasas_msi_raise(0);
576 msi_notify(pci_dev, 0);
577 } else {
578 s->doorbell++;
579 if (s->doorbell == 1) {
580 trace_megasas_irq_raise();
581 pci_irq_assert(pci_dev);
582 }
583 }
584 } else {
585 trace_megasas_qf_complete_noirq(context);
586 }
587 }
588
589 static void megasas_reset_frames(MegasasState *s)
590 {
591 int i;
592 MegasasCmd *cmd;
593
594 for (i = 0; i < s->fw_cmds; i++) {
595 cmd = &s->frames[i];
596 if (cmd->pa) {
597 megasas_unmap_frame(s, cmd);
598 }
599 }
600 bitmap_zero(s->frame_map, MEGASAS_MAX_FRAMES);
601 }
602
603 static void megasas_abort_command(MegasasCmd *cmd)
604 {
605 if (cmd->req) {
606 scsi_req_cancel(cmd->req);
607 cmd->req = NULL;
608 }
609 }
610
611 static int megasas_init_firmware(MegasasState *s, MegasasCmd *cmd)
612 {
613 PCIDevice *pcid = PCI_DEVICE(s);
614 uint32_t pa_hi, pa_lo;
615 hwaddr iq_pa, initq_size = sizeof(struct mfi_init_qinfo);
616 struct mfi_init_qinfo *initq = NULL;
617 uint32_t flags;
618 int ret = MFI_STAT_OK;
619
620 if (s->reply_queue_pa) {
621 trace_megasas_initq_mapped(s->reply_queue_pa);
622 goto out;
623 }
624 pa_lo = le32_to_cpu(cmd->frame->init.qinfo_new_addr_lo);
625 pa_hi = le32_to_cpu(cmd->frame->init.qinfo_new_addr_hi);
626 iq_pa = (((uint64_t) pa_hi << 32) | pa_lo);
627 trace_megasas_init_firmware((uint64_t)iq_pa);
628 initq = pci_dma_map(pcid, iq_pa, &initq_size, 0);
629 if (!initq || initq_size != sizeof(*initq)) {
630 trace_megasas_initq_map_failed(cmd->index);
631 s->event_count++;
632 ret = MFI_STAT_MEMORY_NOT_AVAILABLE;
633 goto out;
634 }
635 s->reply_queue_len = le32_to_cpu(initq->rq_entries) & 0xFFFF;
636 if (s->reply_queue_len > s->fw_cmds) {
637 trace_megasas_initq_mismatch(s->reply_queue_len, s->fw_cmds);
638 s->event_count++;
639 ret = MFI_STAT_INVALID_PARAMETER;
640 goto out;
641 }
642 pa_lo = le32_to_cpu(initq->rq_addr_lo);
643 pa_hi = le32_to_cpu(initq->rq_addr_hi);
644 s->reply_queue_pa = ((uint64_t) pa_hi << 32) | pa_lo;
645 pa_lo = le32_to_cpu(initq->ci_addr_lo);
646 pa_hi = le32_to_cpu(initq->ci_addr_hi);
647 s->consumer_pa = ((uint64_t) pa_hi << 32) | pa_lo;
648 pa_lo = le32_to_cpu(initq->pi_addr_lo);
649 pa_hi = le32_to_cpu(initq->pi_addr_hi);
650 s->producer_pa = ((uint64_t) pa_hi << 32) | pa_lo;
651 s->reply_queue_head = ldl_le_pci_dma(pcid, s->producer_pa);
652 s->reply_queue_tail = ldl_le_pci_dma(pcid, s->consumer_pa);
653 flags = le32_to_cpu(initq->flags);
654 if (flags & MFI_QUEUE_FLAG_CONTEXT64) {
655 s->flags |= MEGASAS_MASK_USE_QUEUE64;
656 }
657 trace_megasas_init_queue((unsigned long)s->reply_queue_pa,
658 s->reply_queue_len, s->reply_queue_head,
659 s->reply_queue_tail, flags);
660 megasas_reset_frames(s);
661 s->fw_state = MFI_FWSTATE_OPERATIONAL;
662 out:
663 if (initq) {
664 pci_dma_unmap(pcid, initq, initq_size, 0, 0);
665 }
666 return ret;
667 }
668
669 static int megasas_map_dcmd(MegasasState *s, MegasasCmd *cmd)
670 {
671 dma_addr_t iov_pa, iov_size;
672
673 cmd->flags = le16_to_cpu(cmd->frame->header.flags);
674 if (!cmd->frame->header.sge_count) {
675 trace_megasas_dcmd_zero_sge(cmd->index);
676 cmd->iov_size = 0;
677 return 0;
678 } else if (cmd->frame->header.sge_count > 1) {
679 trace_megasas_dcmd_invalid_sge(cmd->index,
680 cmd->frame->header.sge_count);
681 cmd->iov_size = 0;
682 return -1;
683 }
684 iov_pa = megasas_sgl_get_addr(cmd, &cmd->frame->dcmd.sgl);
685 iov_size = megasas_sgl_get_len(cmd, &cmd->frame->dcmd.sgl);
686 pci_dma_sglist_init(&cmd->qsg, PCI_DEVICE(s), 1);
687 qemu_sglist_add(&cmd->qsg, iov_pa, iov_size);
688 cmd->iov_size = iov_size;
689 return cmd->iov_size;
690 }
691
692 static void megasas_finish_dcmd(MegasasCmd *cmd, uint32_t iov_size)
693 {
694 trace_megasas_finish_dcmd(cmd->index, iov_size);
695
696 if (cmd->frame->header.sge_count) {
697 qemu_sglist_destroy(&cmd->qsg);
698 }
699 if (iov_size > cmd->iov_size) {
700 if (megasas_frame_is_ieee_sgl(cmd)) {
701 cmd->frame->dcmd.sgl.sg_skinny->len = cpu_to_le32(iov_size);
702 } else if (megasas_frame_is_sgl64(cmd)) {
703 cmd->frame->dcmd.sgl.sg64->len = cpu_to_le32(iov_size);
704 } else {
705 cmd->frame->dcmd.sgl.sg32->len = cpu_to_le32(iov_size);
706 }
707 }
708 cmd->iov_size = 0;
709 }
710
711 static int megasas_ctrl_get_info(MegasasState *s, MegasasCmd *cmd)
712 {
713 PCIDevice *pci_dev = PCI_DEVICE(s);
714 PCIDeviceClass *pci_class = PCI_DEVICE_GET_CLASS(pci_dev);
715 MegasasBaseClass *base_class = MEGASAS_DEVICE_GET_CLASS(s);
716 struct mfi_ctrl_info info;
717 size_t dcmd_size = sizeof(info);
718 BusChild *kid;
719 int num_pd_disks = 0;
720
721 memset(&info, 0x0, cmd->iov_size);
722 if (cmd->iov_size < dcmd_size) {
723 trace_megasas_dcmd_invalid_xfer_len(cmd->index, cmd->iov_size,
724 dcmd_size);
725 return MFI_STAT_INVALID_PARAMETER;
726 }
727
728 info.pci.vendor = cpu_to_le16(pci_class->vendor_id);
729 info.pci.device = cpu_to_le16(pci_class->device_id);
730 info.pci.subvendor = cpu_to_le16(pci_class->subsystem_vendor_id);
731 info.pci.subdevice = cpu_to_le16(pci_class->subsystem_id);
732
733 /*
734 * For some reason the firmware supports
735 * only up to 8 device ports.
736 * Despite supporting a far larger number
737 * of devices for the physical devices.
738 * So just display the first 8 devices
739 * in the device port list, independent
740 * of how many logical devices are actually
741 * present.
742 */
743 info.host.type = MFI_INFO_HOST_PCIE;
744 info.device.type = MFI_INFO_DEV_SAS3G;
745 info.device.port_count = 8;
746 QTAILQ_FOREACH(kid, &s->bus.qbus.children, sibling) {
747 SCSIDevice *sdev = DO_UPCAST(SCSIDevice, qdev, kid->child);
748 uint16_t pd_id;
749
750 if (num_pd_disks < 8) {
751 pd_id = ((sdev->id & 0xFF) << 8) | (sdev->lun & 0xFF);
752 info.device.port_addr[num_pd_disks] =
753 cpu_to_le64(megasas_get_sata_addr(pd_id));
754 }
755 num_pd_disks++;
756 }
757
758 memcpy(info.product_name, base_class->product_name, 24);
759 snprintf(info.serial_number, 32, "%s", s->hba_serial);
760 snprintf(info.package_version, 0x60, "%s-QEMU", QEMU_VERSION);
761 memcpy(info.image_component[0].name, "APP", 3);
762 snprintf(info.image_component[0].version, 10, "%s-QEMU",
763 base_class->product_version);
764 memcpy(info.image_component[0].build_date, "Apr 1 2014", 11);
765 memcpy(info.image_component[0].build_time, "12:34:56", 8);
766 info.image_component_count = 1;
767 if (pci_dev->has_rom) {
768 uint8_t biosver[32];
769 uint8_t *ptr;
770
771 ptr = memory_region_get_ram_ptr(&pci_dev->rom);
772 memcpy(biosver, ptr + 0x41, 31);
773 memcpy(info.image_component[1].name, "BIOS", 4);
774 memcpy(info.image_component[1].version, biosver,
775 strlen((const char *)biosver));
776 info.image_component_count++;
777 }
778 info.current_fw_time = cpu_to_le32(megasas_fw_time());
779 info.max_arms = 32;
780 info.max_spans = 8;
781 info.max_arrays = MEGASAS_MAX_ARRAYS;
782 info.max_lds = MFI_MAX_LD;
783 info.max_cmds = cpu_to_le16(s->fw_cmds);
784 info.max_sg_elements = cpu_to_le16(s->fw_sge);
785 info.max_request_size = cpu_to_le32(MEGASAS_MAX_SECTORS);
786 if (!megasas_is_jbod(s))
787 info.lds_present = cpu_to_le16(num_pd_disks);
788 info.pd_present = cpu_to_le16(num_pd_disks);
789 info.pd_disks_present = cpu_to_le16(num_pd_disks);
790 info.hw_present = cpu_to_le32(MFI_INFO_HW_NVRAM |
791 MFI_INFO_HW_MEM |
792 MFI_INFO_HW_FLASH);
793 info.memory_size = cpu_to_le16(512);
794 info.nvram_size = cpu_to_le16(32);
795 info.flash_size = cpu_to_le16(16);
796 info.raid_levels = cpu_to_le32(MFI_INFO_RAID_0);
797 info.adapter_ops = cpu_to_le32(MFI_INFO_AOPS_RBLD_RATE |
798 MFI_INFO_AOPS_SELF_DIAGNOSTIC |
799 MFI_INFO_AOPS_MIXED_ARRAY);
800 info.ld_ops = cpu_to_le32(MFI_INFO_LDOPS_DISK_CACHE_POLICY |
801 MFI_INFO_LDOPS_ACCESS_POLICY |
802 MFI_INFO_LDOPS_IO_POLICY |
803 MFI_INFO_LDOPS_WRITE_POLICY |
804 MFI_INFO_LDOPS_READ_POLICY);
805 info.max_strips_per_io = cpu_to_le16(s->fw_sge);
806 info.stripe_sz_ops.min = 3;
807 info.stripe_sz_ops.max = ctz32(MEGASAS_MAX_SECTORS + 1);
808 info.properties.pred_fail_poll_interval = cpu_to_le16(300);
809 info.properties.intr_throttle_cnt = cpu_to_le16(16);
810 info.properties.intr_throttle_timeout = cpu_to_le16(50);
811 info.properties.rebuild_rate = 30;
812 info.properties.patrol_read_rate = 30;
813 info.properties.bgi_rate = 30;
814 info.properties.cc_rate = 30;
815 info.properties.recon_rate = 30;
816 info.properties.cache_flush_interval = 4;
817 info.properties.spinup_drv_cnt = 2;
818 info.properties.spinup_delay = 6;
819 info.properties.ecc_bucket_size = 15;
820 info.properties.ecc_bucket_leak_rate = cpu_to_le16(1440);
821 info.properties.expose_encl_devices = 1;
822 info.properties.OnOffProperties = cpu_to_le32(MFI_CTRL_PROP_EnableJBOD);
823 info.pd_ops = cpu_to_le32(MFI_INFO_PDOPS_FORCE_ONLINE |
824 MFI_INFO_PDOPS_FORCE_OFFLINE);
825 info.pd_mix_support = cpu_to_le32(MFI_INFO_PDMIX_SAS |
826 MFI_INFO_PDMIX_SATA |
827 MFI_INFO_PDMIX_LD);
828
829 cmd->iov_size -= dma_buf_read((uint8_t *)&info, dcmd_size, &cmd->qsg);
830 return MFI_STAT_OK;
831 }
832
833 static int megasas_mfc_get_defaults(MegasasState *s, MegasasCmd *cmd)
834 {
835 struct mfi_defaults info;
836 size_t dcmd_size = sizeof(struct mfi_defaults);
837
838 memset(&info, 0x0, dcmd_size);
839 if (cmd->iov_size < dcmd_size) {
840 trace_megasas_dcmd_invalid_xfer_len(cmd->index, cmd->iov_size,
841 dcmd_size);
842 return MFI_STAT_INVALID_PARAMETER;
843 }
844
845 info.sas_addr = cpu_to_le64(s->sas_addr);
846 info.stripe_size = 3;
847 info.flush_time = 4;
848 info.background_rate = 30;
849 info.allow_mix_in_enclosure = 1;
850 info.allow_mix_in_ld = 1;
851 info.direct_pd_mapping = 1;
852 /* Enable for BIOS support */
853 info.bios_enumerate_lds = 1;
854 info.disable_ctrl_r = 1;
855 info.expose_enclosure_devices = 1;
856 info.disable_preboot_cli = 1;
857 info.cluster_disable = 1;
858
859 cmd->iov_size -= dma_buf_read((uint8_t *)&info, dcmd_size, &cmd->qsg);
860 return MFI_STAT_OK;
861 }
862
863 static int megasas_dcmd_get_bios_info(MegasasState *s, MegasasCmd *cmd)
864 {
865 struct mfi_bios_data info;
866 size_t dcmd_size = sizeof(info);
867
868 memset(&info, 0x0, dcmd_size);
869 if (cmd->iov_size < dcmd_size) {
870 trace_megasas_dcmd_invalid_xfer_len(cmd->index, cmd->iov_size,
871 dcmd_size);
872 return MFI_STAT_INVALID_PARAMETER;
873 }
874 info.continue_on_error = 1;
875 info.verbose = 1;
876 if (megasas_is_jbod(s)) {
877 info.expose_all_drives = 1;
878 }
879
880 cmd->iov_size -= dma_buf_read((uint8_t *)&info, dcmd_size, &cmd->qsg);
881 return MFI_STAT_OK;
882 }
883
884 static int megasas_dcmd_get_fw_time(MegasasState *s, MegasasCmd *cmd)
885 {
886 uint64_t fw_time;
887 size_t dcmd_size = sizeof(fw_time);
888
889 fw_time = cpu_to_le64(megasas_fw_time());
890
891 cmd->iov_size -= dma_buf_read((uint8_t *)&fw_time, dcmd_size, &cmd->qsg);
892 return MFI_STAT_OK;
893 }
894
895 static int megasas_dcmd_set_fw_time(MegasasState *s, MegasasCmd *cmd)
896 {
897 uint64_t fw_time;
898
899 /* This is a dummy; setting of firmware time is not allowed */
900 memcpy(&fw_time, cmd->frame->dcmd.mbox, sizeof(fw_time));
901
902 trace_megasas_dcmd_set_fw_time(cmd->index, fw_time);
903 fw_time = cpu_to_le64(megasas_fw_time());
904 return MFI_STAT_OK;
905 }
906
907 static int megasas_event_info(MegasasState *s, MegasasCmd *cmd)
908 {
909 struct mfi_evt_log_state info;
910 size_t dcmd_size = sizeof(info);
911
912 memset(&info, 0, dcmd_size);
913
914 info.newest_seq_num = cpu_to_le32(s->event_count);
915 info.shutdown_seq_num = cpu_to_le32(s->shutdown_event);
916 info.boot_seq_num = cpu_to_le32(s->boot_event);
917
918 cmd->iov_size -= dma_buf_read((uint8_t *)&info, dcmd_size, &cmd->qsg);
919 return MFI_STAT_OK;
920 }
921
922 static int megasas_event_wait(MegasasState *s, MegasasCmd *cmd)
923 {
924 union mfi_evt event;
925
926 if (cmd->iov_size < sizeof(struct mfi_evt_detail)) {
927 trace_megasas_dcmd_invalid_xfer_len(cmd->index, cmd->iov_size,
928 sizeof(struct mfi_evt_detail));
929 return MFI_STAT_INVALID_PARAMETER;
930 }
931 s->event_count = cpu_to_le32(cmd->frame->dcmd.mbox[0]);
932 event.word = cpu_to_le32(cmd->frame->dcmd.mbox[4]);
933 s->event_locale = event.members.locale;
934 s->event_class = event.members.class;
935 s->event_cmd = cmd;
936 /* Decrease busy count; event frame doesn't count here */
937 s->busy--;
938 cmd->iov_size = sizeof(struct mfi_evt_detail);
939 return MFI_STAT_INVALID_STATUS;
940 }
941
942 static int megasas_dcmd_pd_get_list(MegasasState *s, MegasasCmd *cmd)
943 {
944 struct mfi_pd_list info;
945 size_t dcmd_size = sizeof(info);
946 BusChild *kid;
947 uint32_t offset, dcmd_limit, num_pd_disks = 0, max_pd_disks;
948
949 memset(&info, 0, dcmd_size);
950 offset = 8;
951 dcmd_limit = offset + sizeof(struct mfi_pd_address);
952 if (cmd->iov_size < dcmd_limit) {
953 trace_megasas_dcmd_invalid_xfer_len(cmd->index, cmd->iov_size,
954 dcmd_limit);
955 return MFI_STAT_INVALID_PARAMETER;
956 }
957
958 max_pd_disks = (cmd->iov_size - offset) / sizeof(struct mfi_pd_address);
959 if (max_pd_disks > MFI_MAX_SYS_PDS) {
960 max_pd_disks = MFI_MAX_SYS_PDS;
961 }
962 QTAILQ_FOREACH(kid, &s->bus.qbus.children, sibling) {
963 SCSIDevice *sdev = DO_UPCAST(SCSIDevice, qdev, kid->child);
964 uint16_t pd_id;
965
966 if (num_pd_disks >= max_pd_disks)
967 break;
968
969 pd_id = ((sdev->id & 0xFF) << 8) | (sdev->lun & 0xFF);
970 info.addr[num_pd_disks].device_id = cpu_to_le16(pd_id);
971 info.addr[num_pd_disks].encl_device_id = 0xFFFF;
972 info.addr[num_pd_disks].encl_index = 0;
973 info.addr[num_pd_disks].slot_number = sdev->id & 0xFF;
974 info.addr[num_pd_disks].scsi_dev_type = sdev->type;
975 info.addr[num_pd_disks].connect_port_bitmap = 0x1;
976 info.addr[num_pd_disks].sas_addr[0] =
977 cpu_to_le64(megasas_get_sata_addr(pd_id));
978 num_pd_disks++;
979 offset += sizeof(struct mfi_pd_address);
980 }
981 trace_megasas_dcmd_pd_get_list(cmd->index, num_pd_disks,
982 max_pd_disks, offset);
983
984 info.size = cpu_to_le32(offset);
985 info.count = cpu_to_le32(num_pd_disks);
986
987 cmd->iov_size -= dma_buf_read((uint8_t *)&info, offset, &cmd->qsg);
988 return MFI_STAT_OK;
989 }
990
991 static int megasas_dcmd_pd_list_query(MegasasState *s, MegasasCmd *cmd)
992 {
993 uint16_t flags;
994
995 /* mbox0 contains flags */
996 flags = le16_to_cpu(cmd->frame->dcmd.mbox[0]);
997 trace_megasas_dcmd_pd_list_query(cmd->index, flags);
998 if (flags == MR_PD_QUERY_TYPE_ALL ||
999 megasas_is_jbod(s)) {
1000 return megasas_dcmd_pd_get_list(s, cmd);
1001 }
1002
1003 return MFI_STAT_OK;
1004 }
1005
1006 static int megasas_pd_get_info_submit(SCSIDevice *sdev, int lun,
1007 MegasasCmd *cmd)
1008 {
1009 struct mfi_pd_info *info = cmd->iov_buf;
1010 size_t dcmd_size = sizeof(struct mfi_pd_info);
1011 uint64_t pd_size;
1012 uint16_t pd_id = ((sdev->id & 0xFF) << 8) | (lun & 0xFF);
1013 uint8_t cmdbuf[6];
1014 SCSIRequest *req;
1015 size_t len, resid;
1016
1017 if (!cmd->iov_buf) {
1018 cmd->iov_buf = g_malloc0(dcmd_size);
1019 info = cmd->iov_buf;
1020 info->inquiry_data[0] = 0x7f; /* Force PQual 0x3, PType 0x1f */
1021 info->vpd_page83[0] = 0x7f;
1022 megasas_setup_inquiry(cmdbuf, 0, sizeof(info->inquiry_data));
1023 req = scsi_req_new(sdev, cmd->index, lun, cmdbuf, cmd);
1024 if (!req) {
1025 trace_megasas_dcmd_req_alloc_failed(cmd->index,
1026 "PD get info std inquiry");
1027 g_free(cmd->iov_buf);
1028 cmd->iov_buf = NULL;
1029 return MFI_STAT_FLASH_ALLOC_FAIL;
1030 }
1031 trace_megasas_dcmd_internal_submit(cmd->index,
1032 "PD get info std inquiry", lun);
1033 len = scsi_req_enqueue(req);
1034 if (len > 0) {
1035 cmd->iov_size = len;
1036 scsi_req_continue(req);
1037 }
1038 return MFI_STAT_INVALID_STATUS;
1039 } else if (info->inquiry_data[0] != 0x7f && info->vpd_page83[0] == 0x7f) {
1040 megasas_setup_inquiry(cmdbuf, 0x83, sizeof(info->vpd_page83));
1041 req = scsi_req_new(sdev, cmd->index, lun, cmdbuf, cmd);
1042 if (!req) {
1043 trace_megasas_dcmd_req_alloc_failed(cmd->index,
1044 "PD get info vpd inquiry");
1045 return MFI_STAT_FLASH_ALLOC_FAIL;
1046 }
1047 trace_megasas_dcmd_internal_submit(cmd->index,
1048 "PD get info vpd inquiry", lun);
1049 len = scsi_req_enqueue(req);
1050 if (len > 0) {
1051 cmd->iov_size = len;
1052 scsi_req_continue(req);
1053 }
1054 return MFI_STAT_INVALID_STATUS;
1055 }
1056 /* Finished, set FW state */
1057 if ((info->inquiry_data[0] >> 5) == 0) {
1058 if (megasas_is_jbod(cmd->state)) {
1059 info->fw_state = cpu_to_le16(MFI_PD_STATE_SYSTEM);
1060 } else {
1061 info->fw_state = cpu_to_le16(MFI_PD_STATE_ONLINE);
1062 }
1063 } else {
1064 info->fw_state = cpu_to_le16(MFI_PD_STATE_OFFLINE);
1065 }
1066
1067 info->ref.v.device_id = cpu_to_le16(pd_id);
1068 info->state.ddf.pd_type = cpu_to_le16(MFI_PD_DDF_TYPE_IN_VD|
1069 MFI_PD_DDF_TYPE_INTF_SAS);
1070 blk_get_geometry(sdev->conf.blk, &pd_size);
1071 info->raw_size = cpu_to_le64(pd_size);
1072 info->non_coerced_size = cpu_to_le64(pd_size);
1073 info->coerced_size = cpu_to_le64(pd_size);
1074 info->encl_device_id = 0xFFFF;
1075 info->slot_number = (sdev->id & 0xFF);
1076 info->path_info.count = 1;
1077 info->path_info.sas_addr[0] =
1078 cpu_to_le64(megasas_get_sata_addr(pd_id));
1079 info->connected_port_bitmap = 0x1;
1080 info->device_speed = 1;
1081 info->link_speed = 1;
1082 resid = dma_buf_read(cmd->iov_buf, dcmd_size, &cmd->qsg);
1083 g_free(cmd->iov_buf);
1084 cmd->iov_size = dcmd_size - resid;
1085 cmd->iov_buf = NULL;
1086 return MFI_STAT_OK;
1087 }
1088
1089 static int megasas_dcmd_pd_get_info(MegasasState *s, MegasasCmd *cmd)
1090 {
1091 size_t dcmd_size = sizeof(struct mfi_pd_info);
1092 uint16_t pd_id;
1093 uint8_t target_id, lun_id;
1094 SCSIDevice *sdev = NULL;
1095 int retval = MFI_STAT_DEVICE_NOT_FOUND;
1096
1097 if (cmd->iov_size < dcmd_size) {
1098 return MFI_STAT_INVALID_PARAMETER;
1099 }
1100
1101 /* mbox0 has the ID */
1102 pd_id = le16_to_cpu(cmd->frame->dcmd.mbox[0]);
1103 target_id = (pd_id >> 8) & 0xFF;
1104 lun_id = pd_id & 0xFF;
1105 sdev = scsi_device_find(&s->bus, 0, target_id, lun_id);
1106 trace_megasas_dcmd_pd_get_info(cmd->index, pd_id);
1107
1108 if (sdev) {
1109 /* Submit inquiry */
1110 retval = megasas_pd_get_info_submit(sdev, pd_id, cmd);
1111 }
1112
1113 return retval;
1114 }
1115
1116 static int megasas_dcmd_ld_get_list(MegasasState *s, MegasasCmd *cmd)
1117 {
1118 struct mfi_ld_list info;
1119 size_t dcmd_size = sizeof(info), resid;
1120 uint32_t num_ld_disks = 0, max_ld_disks;
1121 uint64_t ld_size;
1122 BusChild *kid;
1123
1124 memset(&info, 0, dcmd_size);
1125 if (cmd->iov_size > dcmd_size) {
1126 trace_megasas_dcmd_invalid_xfer_len(cmd->index, cmd->iov_size,
1127 dcmd_size);
1128 return MFI_STAT_INVALID_PARAMETER;
1129 }
1130
1131 max_ld_disks = (cmd->iov_size - 8) / 16;
1132 if (megasas_is_jbod(s)) {
1133 max_ld_disks = 0;
1134 }
1135 if (max_ld_disks > MFI_MAX_LD) {
1136 max_ld_disks = MFI_MAX_LD;
1137 }
1138 QTAILQ_FOREACH(kid, &s->bus.qbus.children, sibling) {
1139 SCSIDevice *sdev = DO_UPCAST(SCSIDevice, qdev, kid->child);
1140
1141 if (num_ld_disks >= max_ld_disks) {
1142 break;
1143 }
1144 /* Logical device size is in blocks */
1145 blk_get_geometry(sdev->conf.blk, &ld_size);
1146 info.ld_list[num_ld_disks].ld.v.target_id = sdev->id;
1147 info.ld_list[num_ld_disks].state = MFI_LD_STATE_OPTIMAL;
1148 info.ld_list[num_ld_disks].size = cpu_to_le64(ld_size);
1149 num_ld_disks++;
1150 }
1151 info.ld_count = cpu_to_le32(num_ld_disks);
1152 trace_megasas_dcmd_ld_get_list(cmd->index, num_ld_disks, max_ld_disks);
1153
1154 resid = dma_buf_read((uint8_t *)&info, dcmd_size, &cmd->qsg);
1155 cmd->iov_size = dcmd_size - resid;
1156 return MFI_STAT_OK;
1157 }
1158
1159 static int megasas_dcmd_ld_list_query(MegasasState *s, MegasasCmd *cmd)
1160 {
1161 uint16_t flags;
1162 struct mfi_ld_targetid_list info;
1163 size_t dcmd_size = sizeof(info), resid;
1164 uint32_t num_ld_disks = 0, max_ld_disks = s->fw_luns;
1165 BusChild *kid;
1166
1167 /* mbox0 contains flags */
1168 flags = le16_to_cpu(cmd->frame->dcmd.mbox[0]);
1169 trace_megasas_dcmd_ld_list_query(cmd->index, flags);
1170 if (flags != MR_LD_QUERY_TYPE_ALL &&
1171 flags != MR_LD_QUERY_TYPE_EXPOSED_TO_HOST) {
1172 max_ld_disks = 0;
1173 }
1174
1175 memset(&info, 0, dcmd_size);
1176 if (cmd->iov_size < 12) {
1177 trace_megasas_dcmd_invalid_xfer_len(cmd->index, cmd->iov_size,
1178 dcmd_size);
1179 return MFI_STAT_INVALID_PARAMETER;
1180 }
1181 dcmd_size = sizeof(uint32_t) * 2 + 3;
1182 max_ld_disks = cmd->iov_size - dcmd_size;
1183 if (megasas_is_jbod(s)) {
1184 max_ld_disks = 0;
1185 }
1186 if (max_ld_disks > MFI_MAX_LD) {
1187 max_ld_disks = MFI_MAX_LD;
1188 }
1189 QTAILQ_FOREACH(kid, &s->bus.qbus.children, sibling) {
1190 SCSIDevice *sdev = DO_UPCAST(SCSIDevice, qdev, kid->child);
1191
1192 if (num_ld_disks >= max_ld_disks) {
1193 break;
1194 }
1195 info.targetid[num_ld_disks] = sdev->lun;
1196 num_ld_disks++;
1197 dcmd_size++;
1198 }
1199 info.ld_count = cpu_to_le32(num_ld_disks);
1200 info.size = dcmd_size;
1201 trace_megasas_dcmd_ld_get_list(cmd->index, num_ld_disks, max_ld_disks);
1202
1203 resid = dma_buf_read((uint8_t *)&info, dcmd_size, &cmd->qsg);
1204 cmd->iov_size = dcmd_size - resid;
1205 return MFI_STAT_OK;
1206 }
1207
1208 static int megasas_ld_get_info_submit(SCSIDevice *sdev, int lun,
1209 MegasasCmd *cmd)
1210 {
1211 struct mfi_ld_info *info = cmd->iov_buf;
1212 size_t dcmd_size = sizeof(struct mfi_ld_info);
1213 uint8_t cdb[6];
1214 SCSIRequest *req;
1215 ssize_t len, resid;
1216 uint16_t sdev_id = ((sdev->id & 0xFF) << 8) | (lun & 0xFF);
1217 uint64_t ld_size;
1218
1219 if (!cmd->iov_buf) {
1220 cmd->iov_buf = g_malloc0(dcmd_size);
1221 info = cmd->iov_buf;
1222 megasas_setup_inquiry(cdb, 0x83, sizeof(info->vpd_page83));
1223 req = scsi_req_new(sdev, cmd->index, lun, cdb, cmd);
1224 if (!req) {
1225 trace_megasas_dcmd_req_alloc_failed(cmd->index,
1226 "LD get info vpd inquiry");
1227 g_free(cmd->iov_buf);
1228 cmd->iov_buf = NULL;
1229 return MFI_STAT_FLASH_ALLOC_FAIL;
1230 }
1231 trace_megasas_dcmd_internal_submit(cmd->index,
1232 "LD get info vpd inquiry", lun);
1233 len = scsi_req_enqueue(req);
1234 if (len > 0) {
1235 cmd->iov_size = len;
1236 scsi_req_continue(req);
1237 }
1238 return MFI_STAT_INVALID_STATUS;
1239 }
1240
1241 info->ld_config.params.state = MFI_LD_STATE_OPTIMAL;
1242 info->ld_config.properties.ld.v.target_id = lun;
1243 info->ld_config.params.stripe_size = 3;
1244 info->ld_config.params.num_drives = 1;
1245 info->ld_config.params.is_consistent = 1;
1246 /* Logical device size is in blocks */
1247 blk_get_geometry(sdev->conf.blk, &ld_size);
1248 info->size = cpu_to_le64(ld_size);
1249 memset(info->ld_config.span, 0, sizeof(info->ld_config.span));
1250 info->ld_config.span[0].start_block = 0;
1251 info->ld_config.span[0].num_blocks = info->size;
1252 info->ld_config.span[0].array_ref = cpu_to_le16(sdev_id);
1253
1254 resid = dma_buf_read(cmd->iov_buf, dcmd_size, &cmd->qsg);
1255 g_free(cmd->iov_buf);
1256 cmd->iov_size = dcmd_size - resid;
1257 cmd->iov_buf = NULL;
1258 return MFI_STAT_OK;
1259 }
1260
1261 static int megasas_dcmd_ld_get_info(MegasasState *s, MegasasCmd *cmd)
1262 {
1263 struct mfi_ld_info info;
1264 size_t dcmd_size = sizeof(info);
1265 uint16_t ld_id;
1266 uint32_t max_ld_disks = s->fw_luns;
1267 SCSIDevice *sdev = NULL;
1268 int retval = MFI_STAT_DEVICE_NOT_FOUND;
1269
1270 if (cmd->iov_size < dcmd_size) {
1271 return MFI_STAT_INVALID_PARAMETER;
1272 }
1273
1274 /* mbox0 has the ID */
1275 ld_id = le16_to_cpu(cmd->frame->dcmd.mbox[0]);
1276 trace_megasas_dcmd_ld_get_info(cmd->index, ld_id);
1277
1278 if (megasas_is_jbod(s)) {
1279 return MFI_STAT_DEVICE_NOT_FOUND;
1280 }
1281
1282 if (ld_id < max_ld_disks) {
1283 sdev = scsi_device_find(&s->bus, 0, ld_id, 0);
1284 }
1285
1286 if (sdev) {
1287 retval = megasas_ld_get_info_submit(sdev, ld_id, cmd);
1288 }
1289
1290 return retval;
1291 }
1292
1293 static int megasas_dcmd_cfg_read(MegasasState *s, MegasasCmd *cmd)
1294 {
1295 uint8_t data[4096];
1296 struct mfi_config_data *info;
1297 int num_pd_disks = 0, array_offset, ld_offset;
1298 BusChild *kid;
1299
1300 if (cmd->iov_size > 4096) {
1301 return MFI_STAT_INVALID_PARAMETER;
1302 }
1303
1304 QTAILQ_FOREACH(kid, &s->bus.qbus.children, sibling) {
1305 num_pd_disks++;
1306 }
1307 info = (struct mfi_config_data *)&data;
1308 /*
1309 * Array mapping:
1310 * - One array per SCSI device
1311 * - One logical drive per SCSI device
1312 * spanning the entire device
1313 */
1314 info->array_count = num_pd_disks;
1315 info->array_size = sizeof(struct mfi_array) * num_pd_disks;
1316 info->log_drv_count = num_pd_disks;
1317 info->log_drv_size = sizeof(struct mfi_ld_config) * num_pd_disks;
1318 info->spares_count = 0;
1319 info->spares_size = sizeof(struct mfi_spare);
1320 info->size = sizeof(struct mfi_config_data) + info->array_size +
1321 info->log_drv_size;
1322 if (info->size > 4096) {
1323 return MFI_STAT_INVALID_PARAMETER;
1324 }
1325
1326 array_offset = sizeof(struct mfi_config_data);
1327 ld_offset = array_offset + sizeof(struct mfi_array) * num_pd_disks;
1328
1329 QTAILQ_FOREACH(kid, &s->bus.qbus.children, sibling) {
1330 SCSIDevice *sdev = DO_UPCAST(SCSIDevice, qdev, kid->child);
1331 uint16_t sdev_id = ((sdev->id & 0xFF) << 8) | (sdev->lun & 0xFF);
1332 struct mfi_array *array;
1333 struct mfi_ld_config *ld;
1334 uint64_t pd_size;
1335 int i;
1336
1337 array = (struct mfi_array *)(data + array_offset);
1338 blk_get_geometry(sdev->conf.blk, &pd_size);
1339 array->size = cpu_to_le64(pd_size);
1340 array->num_drives = 1;
1341 array->array_ref = cpu_to_le16(sdev_id);
1342 array->pd[0].ref.v.device_id = cpu_to_le16(sdev_id);
1343 array->pd[0].ref.v.seq_num = 0;
1344 array->pd[0].fw_state = MFI_PD_STATE_ONLINE;
1345 array->pd[0].encl.pd = 0xFF;
1346 array->pd[0].encl.slot = (sdev->id & 0xFF);
1347 for (i = 1; i < MFI_MAX_ROW_SIZE; i++) {
1348 array->pd[i].ref.v.device_id = 0xFFFF;
1349 array->pd[i].ref.v.seq_num = 0;
1350 array->pd[i].fw_state = MFI_PD_STATE_UNCONFIGURED_GOOD;
1351 array->pd[i].encl.pd = 0xFF;
1352 array->pd[i].encl.slot = 0xFF;
1353 }
1354 array_offset += sizeof(struct mfi_array);
1355 ld = (struct mfi_ld_config *)(data + ld_offset);
1356 memset(ld, 0, sizeof(struct mfi_ld_config));
1357 ld->properties.ld.v.target_id = sdev->id;
1358 ld->properties.default_cache_policy = MR_LD_CACHE_READ_AHEAD |
1359 MR_LD_CACHE_READ_ADAPTIVE;
1360 ld->properties.current_cache_policy = MR_LD_CACHE_READ_AHEAD |
1361 MR_LD_CACHE_READ_ADAPTIVE;
1362 ld->params.state = MFI_LD_STATE_OPTIMAL;
1363 ld->params.stripe_size = 3;
1364 ld->params.num_drives = 1;
1365 ld->params.span_depth = 1;
1366 ld->params.is_consistent = 1;
1367 ld->span[0].start_block = 0;
1368 ld->span[0].num_blocks = cpu_to_le64(pd_size);
1369 ld->span[0].array_ref = cpu_to_le16(sdev_id);
1370 ld_offset += sizeof(struct mfi_ld_config);
1371 }
1372
1373 cmd->iov_size -= dma_buf_read((uint8_t *)data, info->size, &cmd->qsg);
1374 return MFI_STAT_OK;
1375 }
1376
1377 static int megasas_dcmd_get_properties(MegasasState *s, MegasasCmd *cmd)
1378 {
1379 struct mfi_ctrl_props info;
1380 size_t dcmd_size = sizeof(info);
1381
1382 memset(&info, 0x0, dcmd_size);
1383 if (cmd->iov_size < dcmd_size) {
1384 trace_megasas_dcmd_invalid_xfer_len(cmd->index, cmd->iov_size,
1385 dcmd_size);
1386 return MFI_STAT_INVALID_PARAMETER;
1387 }
1388 info.pred_fail_poll_interval = cpu_to_le16(300);
1389 info.intr_throttle_cnt = cpu_to_le16(16);
1390 info.intr_throttle_timeout = cpu_to_le16(50);
1391 info.rebuild_rate = 30;
1392 info.patrol_read_rate = 30;
1393 info.bgi_rate = 30;
1394 info.cc_rate = 30;
1395 info.recon_rate = 30;
1396 info.cache_flush_interval = 4;
1397 info.spinup_drv_cnt = 2;
1398 info.spinup_delay = 6;
1399 info.ecc_bucket_size = 15;
1400 info.ecc_bucket_leak_rate = cpu_to_le16(1440);
1401 info.expose_encl_devices = 1;
1402
1403 cmd->iov_size -= dma_buf_read((uint8_t *)&info, dcmd_size, &cmd->qsg);
1404 return MFI_STAT_OK;
1405 }
1406
1407 static int megasas_cache_flush(MegasasState *s, MegasasCmd *cmd)
1408 {
1409 blk_drain_all();
1410 return MFI_STAT_OK;
1411 }
1412
1413 static int megasas_ctrl_shutdown(MegasasState *s, MegasasCmd *cmd)
1414 {
1415 s->fw_state = MFI_FWSTATE_READY;
1416 return MFI_STAT_OK;
1417 }
1418
1419 /* Some implementations use CLUSTER RESET LD to simulate a device reset */
1420 static int megasas_cluster_reset_ld(MegasasState *s, MegasasCmd *cmd)
1421 {
1422 uint16_t target_id;
1423 int i;
1424
1425 /* mbox0 contains the device index */
1426 target_id = le16_to_cpu(cmd->frame->dcmd.mbox[0]);
1427 trace_megasas_dcmd_reset_ld(cmd->index, target_id);
1428 for (i = 0; i < s->fw_cmds; i++) {
1429 MegasasCmd *tmp_cmd = &s->frames[i];
1430 if (tmp_cmd->req && tmp_cmd->req->dev->id == target_id) {
1431 SCSIDevice *d = tmp_cmd->req->dev;
1432 qdev_reset_all(&d->qdev);
1433 }
1434 }
1435 return MFI_STAT_OK;
1436 }
1437
1438 static int megasas_dcmd_set_properties(MegasasState *s, MegasasCmd *cmd)
1439 {
1440 struct mfi_ctrl_props info;
1441 size_t dcmd_size = sizeof(info);
1442
1443 if (cmd->iov_size < dcmd_size) {
1444 trace_megasas_dcmd_invalid_xfer_len(cmd->index, cmd->iov_size,
1445 dcmd_size);
1446 return MFI_STAT_INVALID_PARAMETER;
1447 }
1448 dma_buf_write((uint8_t *)&info, cmd->iov_size, &cmd->qsg);
1449 trace_megasas_dcmd_unsupported(cmd->index, cmd->iov_size);
1450 return MFI_STAT_OK;
1451 }
1452
1453 static int megasas_dcmd_dummy(MegasasState *s, MegasasCmd *cmd)
1454 {
1455 trace_megasas_dcmd_dummy(cmd->index, cmd->iov_size);
1456 return MFI_STAT_OK;
1457 }
1458
1459 static const struct dcmd_cmd_tbl_t {
1460 int opcode;
1461 const char *desc;
1462 int (*func)(MegasasState *s, MegasasCmd *cmd);
1463 } dcmd_cmd_tbl[] = {
1464 { MFI_DCMD_CTRL_MFI_HOST_MEM_ALLOC, "CTRL_HOST_MEM_ALLOC",
1465 megasas_dcmd_dummy },
1466 { MFI_DCMD_CTRL_GET_INFO, "CTRL_GET_INFO",
1467 megasas_ctrl_get_info },
1468 { MFI_DCMD_CTRL_GET_PROPERTIES, "CTRL_GET_PROPERTIES",
1469 megasas_dcmd_get_properties },
1470 { MFI_DCMD_CTRL_SET_PROPERTIES, "CTRL_SET_PROPERTIES",
1471 megasas_dcmd_set_properties },
1472 { MFI_DCMD_CTRL_ALARM_GET, "CTRL_ALARM_GET",
1473 megasas_dcmd_dummy },
1474 { MFI_DCMD_CTRL_ALARM_ENABLE, "CTRL_ALARM_ENABLE",
1475 megasas_dcmd_dummy },
1476 { MFI_DCMD_CTRL_ALARM_DISABLE, "CTRL_ALARM_DISABLE",
1477 megasas_dcmd_dummy },
1478 { MFI_DCMD_CTRL_ALARM_SILENCE, "CTRL_ALARM_SILENCE",
1479 megasas_dcmd_dummy },
1480 { MFI_DCMD_CTRL_ALARM_TEST, "CTRL_ALARM_TEST",
1481 megasas_dcmd_dummy },
1482 { MFI_DCMD_CTRL_EVENT_GETINFO, "CTRL_EVENT_GETINFO",
1483 megasas_event_info },
1484 { MFI_DCMD_CTRL_EVENT_GET, "CTRL_EVENT_GET",
1485 megasas_dcmd_dummy },
1486 { MFI_DCMD_CTRL_EVENT_WAIT, "CTRL_EVENT_WAIT",
1487 megasas_event_wait },
1488 { MFI_DCMD_CTRL_SHUTDOWN, "CTRL_SHUTDOWN",
1489 megasas_ctrl_shutdown },
1490 { MFI_DCMD_HIBERNATE_STANDBY, "CTRL_STANDBY",
1491 megasas_dcmd_dummy },
1492 { MFI_DCMD_CTRL_GET_TIME, "CTRL_GET_TIME",
1493 megasas_dcmd_get_fw_time },
1494 { MFI_DCMD_CTRL_SET_TIME, "CTRL_SET_TIME",
1495 megasas_dcmd_set_fw_time },
1496 { MFI_DCMD_CTRL_BIOS_DATA_GET, "CTRL_BIOS_DATA_GET",
1497 megasas_dcmd_get_bios_info },
1498 { MFI_DCMD_CTRL_FACTORY_DEFAULTS, "CTRL_FACTORY_DEFAULTS",
1499 megasas_dcmd_dummy },
1500 { MFI_DCMD_CTRL_MFC_DEFAULTS_GET, "CTRL_MFC_DEFAULTS_GET",
1501 megasas_mfc_get_defaults },
1502 { MFI_DCMD_CTRL_MFC_DEFAULTS_SET, "CTRL_MFC_DEFAULTS_SET",
1503 megasas_dcmd_dummy },
1504 { MFI_DCMD_CTRL_CACHE_FLUSH, "CTRL_CACHE_FLUSH",
1505 megasas_cache_flush },
1506 { MFI_DCMD_PD_GET_LIST, "PD_GET_LIST",
1507 megasas_dcmd_pd_get_list },
1508 { MFI_DCMD_PD_LIST_QUERY, "PD_LIST_QUERY",
1509 megasas_dcmd_pd_list_query },
1510 { MFI_DCMD_PD_GET_INFO, "PD_GET_INFO",
1511 megasas_dcmd_pd_get_info },
1512 { MFI_DCMD_PD_STATE_SET, "PD_STATE_SET",
1513 megasas_dcmd_dummy },
1514 { MFI_DCMD_PD_REBUILD, "PD_REBUILD",
1515 megasas_dcmd_dummy },
1516 { MFI_DCMD_PD_BLINK, "PD_BLINK",
1517 megasas_dcmd_dummy },
1518 { MFI_DCMD_PD_UNBLINK, "PD_UNBLINK",
1519 megasas_dcmd_dummy },
1520 { MFI_DCMD_LD_GET_LIST, "LD_GET_LIST",
1521 megasas_dcmd_ld_get_list},
1522 { MFI_DCMD_LD_LIST_QUERY, "LD_LIST_QUERY",
1523 megasas_dcmd_ld_list_query },
1524 { MFI_DCMD_LD_GET_INFO, "LD_GET_INFO",
1525 megasas_dcmd_ld_get_info },
1526 { MFI_DCMD_LD_GET_PROP, "LD_GET_PROP",
1527 megasas_dcmd_dummy },
1528 { MFI_DCMD_LD_SET_PROP, "LD_SET_PROP",
1529 megasas_dcmd_dummy },
1530 { MFI_DCMD_LD_DELETE, "LD_DELETE",
1531 megasas_dcmd_dummy },
1532 { MFI_DCMD_CFG_READ, "CFG_READ",
1533 megasas_dcmd_cfg_read },
1534 { MFI_DCMD_CFG_ADD, "CFG_ADD",
1535 megasas_dcmd_dummy },
1536 { MFI_DCMD_CFG_CLEAR, "CFG_CLEAR",
1537 megasas_dcmd_dummy },
1538 { MFI_DCMD_CFG_FOREIGN_READ, "CFG_FOREIGN_READ",
1539 megasas_dcmd_dummy },
1540 { MFI_DCMD_CFG_FOREIGN_IMPORT, "CFG_FOREIGN_IMPORT",
1541 megasas_dcmd_dummy },
1542 { MFI_DCMD_BBU_STATUS, "BBU_STATUS",
1543 megasas_dcmd_dummy },
1544 { MFI_DCMD_BBU_CAPACITY_INFO, "BBU_CAPACITY_INFO",
1545 megasas_dcmd_dummy },
1546 { MFI_DCMD_BBU_DESIGN_INFO, "BBU_DESIGN_INFO",
1547 megasas_dcmd_dummy },
1548 { MFI_DCMD_BBU_PROP_GET, "BBU_PROP_GET",
1549 megasas_dcmd_dummy },
1550 { MFI_DCMD_CLUSTER, "CLUSTER",
1551 megasas_dcmd_dummy },
1552 { MFI_DCMD_CLUSTER_RESET_ALL, "CLUSTER_RESET_ALL",
1553 megasas_dcmd_dummy },
1554 { MFI_DCMD_CLUSTER_RESET_LD, "CLUSTER_RESET_LD",
1555 megasas_cluster_reset_ld },
1556 { -1, NULL, NULL }
1557 };
1558
1559 static int megasas_handle_dcmd(MegasasState *s, MegasasCmd *cmd)
1560 {
1561 int opcode, len;
1562 int retval = 0;
1563 const struct dcmd_cmd_tbl_t *cmdptr = dcmd_cmd_tbl;
1564
1565 opcode = le32_to_cpu(cmd->frame->dcmd.opcode);
1566 trace_megasas_handle_dcmd(cmd->index, opcode);
1567 len = megasas_map_dcmd(s, cmd);
1568 if (len < 0) {
1569 return MFI_STAT_MEMORY_NOT_AVAILABLE;
1570 }
1571 while (cmdptr->opcode != -1 && cmdptr->opcode != opcode) {
1572 cmdptr++;
1573 }
1574 if (cmdptr->opcode == -1) {
1575 trace_megasas_dcmd_unhandled(cmd->index, opcode, len);
1576 retval = megasas_dcmd_dummy(s, cmd);
1577 } else {
1578 trace_megasas_dcmd_enter(cmd->index, cmdptr->desc, len);
1579 retval = cmdptr->func(s, cmd);
1580 }
1581 if (retval != MFI_STAT_INVALID_STATUS) {
1582 megasas_finish_dcmd(cmd, len);
1583 }
1584 return retval;
1585 }
1586
1587 static int megasas_finish_internal_dcmd(MegasasCmd *cmd,
1588 SCSIRequest *req)
1589 {
1590 int opcode;
1591 int retval = MFI_STAT_OK;
1592 int lun = req->lun;
1593
1594 opcode = le32_to_cpu(cmd->frame->dcmd.opcode);
1595 scsi_req_unref(req);
1596 trace_megasas_dcmd_internal_finish(cmd->index, opcode, lun);
1597 switch (opcode) {
1598 case MFI_DCMD_PD_GET_INFO:
1599 retval = megasas_pd_get_info_submit(req->dev, lun, cmd);
1600 break;
1601 case MFI_DCMD_LD_GET_INFO:
1602 retval = megasas_ld_get_info_submit(req->dev, lun, cmd);
1603 break;
1604 default:
1605 trace_megasas_dcmd_internal_invalid(cmd->index, opcode);
1606 retval = MFI_STAT_INVALID_DCMD;
1607 break;
1608 }
1609 if (retval != MFI_STAT_INVALID_STATUS) {
1610 megasas_finish_dcmd(cmd, cmd->iov_size);
1611 }
1612 return retval;
1613 }
1614
1615 static int megasas_enqueue_req(MegasasCmd *cmd, bool is_write)
1616 {
1617 int len;
1618
1619 len = scsi_req_enqueue(cmd->req);
1620 if (len < 0) {
1621 len = -len;
1622 }
1623 if (len > 0) {
1624 if (len > cmd->iov_size) {
1625 if (is_write) {
1626 trace_megasas_iov_write_overflow(cmd->index, len,
1627 cmd->iov_size);
1628 } else {
1629 trace_megasas_iov_read_overflow(cmd->index, len,
1630 cmd->iov_size);
1631 }
1632 }
1633 if (len < cmd->iov_size) {
1634 if (is_write) {
1635 trace_megasas_iov_write_underflow(cmd->index, len,
1636 cmd->iov_size);
1637 } else {
1638 trace_megasas_iov_read_underflow(cmd->index, len,
1639 cmd->iov_size);
1640 }
1641 cmd->iov_size = len;
1642 }
1643 scsi_req_continue(cmd->req);
1644 }
1645 return len;
1646 }
1647
1648 static int megasas_handle_scsi(MegasasState *s, MegasasCmd *cmd,
1649 bool is_logical)
1650 {
1651 uint8_t *cdb;
1652 bool is_write;
1653 struct SCSIDevice *sdev = NULL;
1654
1655 cdb = cmd->frame->pass.cdb;
1656
1657 if (is_logical) {
1658 if (cmd->frame->header.target_id >= MFI_MAX_LD ||
1659 cmd->frame->header.lun_id != 0) {
1660 trace_megasas_scsi_target_not_present(
1661 mfi_frame_desc[cmd->frame->header.frame_cmd], is_logical,
1662 cmd->frame->header.target_id, cmd->frame->header.lun_id);
1663 return MFI_STAT_DEVICE_NOT_FOUND;
1664 }
1665 }
1666 sdev = scsi_device_find(&s->bus, 0, cmd->frame->header.target_id,
1667 cmd->frame->header.lun_id);
1668
1669 cmd->iov_size = le32_to_cpu(cmd->frame->header.data_len);
1670 trace_megasas_handle_scsi(mfi_frame_desc[cmd->frame->header.frame_cmd],
1671 is_logical, cmd->frame->header.target_id,
1672 cmd->frame->header.lun_id, sdev, cmd->iov_size);
1673
1674 if (!sdev || (megasas_is_jbod(s) && is_logical)) {
1675 trace_megasas_scsi_target_not_present(
1676 mfi_frame_desc[cmd->frame->header.frame_cmd], is_logical,
1677 cmd->frame->header.target_id, cmd->frame->header.lun_id);
1678 return MFI_STAT_DEVICE_NOT_FOUND;
1679 }
1680
1681 if (cmd->frame->header.cdb_len > 16) {
1682 trace_megasas_scsi_invalid_cdb_len(
1683 mfi_frame_desc[cmd->frame->header.frame_cmd], is_logical,
1684 cmd->frame->header.target_id, cmd->frame->header.lun_id,
1685 cmd->frame->header.cdb_len);
1686 megasas_write_sense(cmd, SENSE_CODE(INVALID_OPCODE));
1687 cmd->frame->header.scsi_status = CHECK_CONDITION;
1688 s->event_count++;
1689 return MFI_STAT_SCSI_DONE_WITH_ERROR;
1690 }
1691
1692 if (megasas_map_sgl(s, cmd, &cmd->frame->pass.sgl)) {
1693 megasas_write_sense(cmd, SENSE_CODE(TARGET_FAILURE));
1694 cmd->frame->header.scsi_status = CHECK_CONDITION;
1695 s->event_count++;
1696 return MFI_STAT_SCSI_DONE_WITH_ERROR;
1697 }
1698
1699 cmd->req = scsi_req_new(sdev, cmd->index,
1700 cmd->frame->header.lun_id, cdb, cmd);
1701 if (!cmd->req) {
1702 trace_megasas_scsi_req_alloc_failed(
1703 mfi_frame_desc[cmd->frame->header.frame_cmd],
1704 cmd->frame->header.target_id, cmd->frame->header.lun_id);
1705 megasas_write_sense(cmd, SENSE_CODE(NO_SENSE));
1706 cmd->frame->header.scsi_status = BUSY;
1707 s->event_count++;
1708 return MFI_STAT_SCSI_DONE_WITH_ERROR;
1709 }
1710
1711 is_write = (cmd->req->cmd.mode == SCSI_XFER_TO_DEV);
1712 if (cmd->iov_size) {
1713 if (is_write) {
1714 trace_megasas_scsi_write_start(cmd->index, cmd->iov_size);
1715 } else {
1716 trace_megasas_scsi_read_start(cmd->index, cmd->iov_size);
1717 }
1718 } else {
1719 trace_megasas_scsi_nodata(cmd->index);
1720 }
1721 megasas_enqueue_req(cmd, is_write);
1722 return MFI_STAT_INVALID_STATUS;
1723 }
1724
1725 static int megasas_handle_io(MegasasState *s, MegasasCmd *cmd)
1726 {
1727 uint32_t lba_count, lba_start_hi, lba_start_lo;
1728 uint64_t lba_start;
1729 bool is_write = (cmd->frame->header.frame_cmd == MFI_CMD_LD_WRITE);
1730 uint8_t cdb[16];
1731 int len;
1732 struct SCSIDevice *sdev = NULL;
1733
1734 lba_count = le32_to_cpu(cmd->frame->io.header.data_len);
1735 lba_start_lo = le32_to_cpu(cmd->frame->io.lba_lo);
1736 lba_start_hi = le32_to_cpu(cmd->frame->io.lba_hi);
1737 lba_start = ((uint64_t)lba_start_hi << 32) | lba_start_lo;
1738
1739 if (cmd->frame->header.target_id < MFI_MAX_LD &&
1740 cmd->frame->header.lun_id == 0) {
1741 sdev = scsi_device_find(&s->bus, 0, cmd->frame->header.target_id,
1742 cmd->frame->header.lun_id);
1743 }
1744
1745 trace_megasas_handle_io(cmd->index,
1746 mfi_frame_desc[cmd->frame->header.frame_cmd],
1747 cmd->frame->header.target_id,
1748 cmd->frame->header.lun_id,
1749 (unsigned long)lba_start, (unsigned long)lba_count);
1750 if (!sdev) {
1751 trace_megasas_io_target_not_present(cmd->index,
1752 mfi_frame_desc[cmd->frame->header.frame_cmd],
1753 cmd->frame->header.target_id, cmd->frame->header.lun_id);
1754 return MFI_STAT_DEVICE_NOT_FOUND;
1755 }
1756
1757 if (cmd->frame->header.cdb_len > 16) {
1758 trace_megasas_scsi_invalid_cdb_len(
1759 mfi_frame_desc[cmd->frame->header.frame_cmd], 1,
1760 cmd->frame->header.target_id, cmd->frame->header.lun_id,
1761 cmd->frame->header.cdb_len);
1762 megasas_write_sense(cmd, SENSE_CODE(INVALID_OPCODE));
1763 cmd->frame->header.scsi_status = CHECK_CONDITION;
1764 s->event_count++;
1765 return MFI_STAT_SCSI_DONE_WITH_ERROR;
1766 }
1767
1768 cmd->iov_size = lba_count * sdev->blocksize;
1769 if (megasas_map_sgl(s, cmd, &cmd->frame->io.sgl)) {
1770 megasas_write_sense(cmd, SENSE_CODE(TARGET_FAILURE));
1771 cmd->frame->header.scsi_status = CHECK_CONDITION;
1772 s->event_count++;
1773 return MFI_STAT_SCSI_DONE_WITH_ERROR;
1774 }
1775
1776 megasas_encode_lba(cdb, lba_start, lba_count, is_write);
1777 cmd->req = scsi_req_new(sdev, cmd->index,
1778 cmd->frame->header.lun_id, cdb, cmd);
1779 if (!cmd->req) {
1780 trace_megasas_scsi_req_alloc_failed(
1781 mfi_frame_desc[cmd->frame->header.frame_cmd],
1782 cmd->frame->header.target_id, cmd->frame->header.lun_id);
1783 megasas_write_sense(cmd, SENSE_CODE(NO_SENSE));
1784 cmd->frame->header.scsi_status = BUSY;
1785 s->event_count++;
1786 return MFI_STAT_SCSI_DONE_WITH_ERROR;
1787 }
1788 len = megasas_enqueue_req(cmd, is_write);
1789 if (len > 0) {
1790 if (is_write) {
1791 trace_megasas_io_write_start(cmd->index, lba_start, lba_count, len);
1792 } else {
1793 trace_megasas_io_read_start(cmd->index, lba_start, lba_count, len);
1794 }
1795 }
1796 return MFI_STAT_INVALID_STATUS;
1797 }
1798
1799 static int megasas_finish_internal_command(MegasasCmd *cmd,
1800 SCSIRequest *req, size_t resid)
1801 {
1802 int retval = MFI_STAT_INVALID_CMD;
1803
1804 if (cmd->frame->header.frame_cmd == MFI_CMD_DCMD) {
1805 cmd->iov_size -= resid;
1806 retval = megasas_finish_internal_dcmd(cmd, req);
1807 }
1808 return retval;
1809 }
1810
1811 static QEMUSGList *megasas_get_sg_list(SCSIRequest *req)
1812 {
1813 MegasasCmd *cmd = req->hba_private;
1814
1815 if (cmd->frame->header.frame_cmd == MFI_CMD_DCMD) {
1816 return NULL;
1817 } else {
1818 return &cmd->qsg;
1819 }
1820 }
1821
1822 static void megasas_xfer_complete(SCSIRequest *req, uint32_t len)
1823 {
1824 MegasasCmd *cmd = req->hba_private;
1825 uint8_t *buf;
1826 uint32_t opcode;
1827
1828 trace_megasas_io_complete(cmd->index, len);
1829
1830 if (cmd->frame->header.frame_cmd != MFI_CMD_DCMD) {
1831 scsi_req_continue(req);
1832 return;
1833 }
1834
1835 buf = scsi_req_get_buf(req);
1836 opcode = le32_to_cpu(cmd->frame->dcmd.opcode);
1837 if (opcode == MFI_DCMD_PD_GET_INFO && cmd->iov_buf) {
1838 struct mfi_pd_info *info = cmd->iov_buf;
1839
1840 if (info->inquiry_data[0] == 0x7f) {
1841 memset(info->inquiry_data, 0, sizeof(info->inquiry_data));
1842 memcpy(info->inquiry_data, buf, len);
1843 } else if (info->vpd_page83[0] == 0x7f) {
1844 memset(info->vpd_page83, 0, sizeof(info->vpd_page83));
1845 memcpy(info->vpd_page83, buf, len);
1846 }
1847 scsi_req_continue(req);
1848 } else if (opcode == MFI_DCMD_LD_GET_INFO) {
1849 struct mfi_ld_info *info = cmd->iov_buf;
1850
1851 if (cmd->iov_buf) {
1852 memcpy(info->vpd_page83, buf, sizeof(info->vpd_page83));
1853 scsi_req_continue(req);
1854 }
1855 }
1856 }
1857
1858 static void megasas_command_complete(SCSIRequest *req, uint32_t status,
1859 size_t resid)
1860 {
1861 MegasasCmd *cmd = req->hba_private;
1862 uint8_t cmd_status = MFI_STAT_OK;
1863
1864 trace_megasas_command_complete(cmd->index, status, resid);
1865
1866 if (cmd->req != req) {
1867 /*
1868 * Internal command complete
1869 */
1870 cmd_status = megasas_finish_internal_command(cmd, req, resid);
1871 if (cmd_status == MFI_STAT_INVALID_STATUS) {
1872 return;
1873 }
1874 } else {
1875 req->status = status;
1876 trace_megasas_scsi_complete(cmd->index, req->status,
1877 cmd->iov_size, req->cmd.xfer);
1878 if (req->status != GOOD) {
1879 cmd_status = MFI_STAT_SCSI_DONE_WITH_ERROR;
1880 }
1881 if (req->status == CHECK_CONDITION) {
1882 megasas_copy_sense(cmd);
1883 }
1884
1885 megasas_unmap_sgl(cmd);
1886 cmd->frame->header.scsi_status = req->status;
1887 scsi_req_unref(cmd->req);
1888 cmd->req = NULL;
1889 }
1890 cmd->frame->header.cmd_status = cmd_status;
1891 megasas_unmap_frame(cmd->state, cmd);
1892 megasas_complete_frame(cmd->state, cmd->context);
1893 }
1894
1895 static void megasas_command_cancel(SCSIRequest *req)
1896 {
1897 MegasasCmd *cmd = req->hba_private;
1898
1899 if (cmd) {
1900 megasas_abort_command(cmd);
1901 } else {
1902 scsi_req_unref(req);
1903 }
1904 }
1905
1906 static int megasas_handle_abort(MegasasState *s, MegasasCmd *cmd)
1907 {
1908 uint64_t abort_ctx = le64_to_cpu(cmd->frame->abort.abort_context);
1909 hwaddr abort_addr, addr_hi, addr_lo;
1910 MegasasCmd *abort_cmd;
1911
1912 addr_hi = le32_to_cpu(cmd->frame->abort.abort_mfi_addr_hi);
1913 addr_lo = le32_to_cpu(cmd->frame->abort.abort_mfi_addr_lo);
1914 abort_addr = ((uint64_t)addr_hi << 32) | addr_lo;
1915
1916 abort_cmd = megasas_lookup_frame(s, abort_addr);
1917 if (!abort_cmd) {
1918 trace_megasas_abort_no_cmd(cmd->index, abort_ctx);
1919 s->event_count++;
1920 return MFI_STAT_OK;
1921 }
1922 if (!megasas_use_queue64(s)) {
1923 abort_ctx &= (uint64_t)0xFFFFFFFF;
1924 }
1925 if (abort_cmd->context != abort_ctx) {
1926 trace_megasas_abort_invalid_context(cmd->index, abort_cmd->index,
1927 abort_cmd->context);
1928 s->event_count++;
1929 return MFI_STAT_ABORT_NOT_POSSIBLE;
1930 }
1931 trace_megasas_abort_frame(cmd->index, abort_cmd->index);
1932 megasas_abort_command(abort_cmd);
1933 if (!s->event_cmd || abort_cmd != s->event_cmd) {
1934 s->event_cmd = NULL;
1935 }
1936 s->event_count++;
1937 return MFI_STAT_OK;
1938 }
1939
1940 static void megasas_handle_frame(MegasasState *s, uint64_t frame_addr,
1941 uint32_t frame_count)
1942 {
1943 uint8_t frame_status = MFI_STAT_INVALID_CMD;
1944 uint64_t frame_context;
1945 MegasasCmd *cmd;
1946
1947 /*
1948 * Always read 64bit context, top bits will be
1949 * masked out if required in megasas_enqueue_frame()
1950 */
1951 frame_context = megasas_frame_get_context(s, frame_addr);
1952
1953 cmd = megasas_enqueue_frame(s, frame_addr, frame_context, frame_count);
1954 if (!cmd) {
1955 /* reply queue full */
1956 trace_megasas_frame_busy(frame_addr);
1957 megasas_frame_set_scsi_status(s, frame_addr, BUSY);
1958 megasas_frame_set_cmd_status(s, frame_addr, MFI_STAT_SCSI_DONE_WITH_ERROR);
1959 megasas_complete_frame(s, frame_context);
1960 s->event_count++;
1961 return;
1962 }
1963 switch (cmd->frame->header.frame_cmd) {
1964 case MFI_CMD_INIT:
1965 frame_status = megasas_init_firmware(s, cmd);
1966 break;
1967 case MFI_CMD_DCMD:
1968 frame_status = megasas_handle_dcmd(s, cmd);
1969 break;
1970 case MFI_CMD_ABORT:
1971 frame_status = megasas_handle_abort(s, cmd);
1972 break;
1973 case MFI_CMD_PD_SCSI_IO:
1974 frame_status = megasas_handle_scsi(s, cmd, 0);
1975 break;
1976 case MFI_CMD_LD_SCSI_IO:
1977 frame_status = megasas_handle_scsi(s, cmd, 1);
1978 break;
1979 case MFI_CMD_LD_READ:
1980 case MFI_CMD_LD_WRITE:
1981 frame_status = megasas_handle_io(s, cmd);
1982 break;
1983 default:
1984 trace_megasas_unhandled_frame_cmd(cmd->index,
1985 cmd->frame->header.frame_cmd);
1986 s->event_count++;
1987 break;
1988 }
1989 if (frame_status != MFI_STAT_INVALID_STATUS) {
1990 if (cmd->frame) {
1991 cmd->frame->header.cmd_status = frame_status;
1992 } else {
1993 megasas_frame_set_cmd_status(s, frame_addr, frame_status);
1994 }
1995 megasas_unmap_frame(s, cmd);
1996 megasas_complete_frame(s, cmd->context);
1997 }
1998 }
1999
2000 static uint64_t megasas_mmio_read(void *opaque, hwaddr addr,
2001 unsigned size)
2002 {
2003 MegasasState *s = opaque;
2004 PCIDevice *pci_dev = PCI_DEVICE(s);
2005 MegasasBaseClass *base_class = MEGASAS_DEVICE_GET_CLASS(s);
2006 uint32_t retval = 0;
2007
2008 switch (addr) {
2009 case MFI_IDB:
2010 retval = 0;
2011 trace_megasas_mmio_readl("MFI_IDB", retval);
2012 break;
2013 case MFI_OMSG0:
2014 case MFI_OSP0:
2015 retval = (msix_present(pci_dev) ? MFI_FWSTATE_MSIX_SUPPORTED : 0) |
2016 (s->fw_state & MFI_FWSTATE_MASK) |
2017 ((s->fw_sge & 0xff) << 16) |
2018 (s->fw_cmds & 0xFFFF);
2019 trace_megasas_mmio_readl(addr == MFI_OMSG0 ? "MFI_OMSG0" : "MFI_OSP0",
2020 retval);
2021 break;
2022 case MFI_OSTS:
2023 if (megasas_intr_enabled(s) && s->doorbell) {
2024 retval = base_class->osts;
2025 }
2026 trace_megasas_mmio_readl("MFI_OSTS", retval);
2027 break;
2028 case MFI_OMSK:
2029 retval = s->intr_mask;
2030 trace_megasas_mmio_readl("MFI_OMSK", retval);
2031 break;
2032 case MFI_ODCR0:
2033 retval = s->doorbell ? 1 : 0;
2034 trace_megasas_mmio_readl("MFI_ODCR0", retval);
2035 break;
2036 case MFI_DIAG:
2037 retval = s->diag;
2038 trace_megasas_mmio_readl("MFI_DIAG", retval);
2039 break;
2040 case MFI_OSP1:
2041 retval = 15;
2042 trace_megasas_mmio_readl("MFI_OSP1", retval);
2043 break;
2044 default:
2045 trace_megasas_mmio_invalid_readl(addr);
2046 break;
2047 }
2048 return retval;
2049 }
2050
2051 static int adp_reset_seq[] = {0x00, 0x04, 0x0b, 0x02, 0x07, 0x0d};
2052
2053 static void megasas_mmio_write(void *opaque, hwaddr addr,
2054 uint64_t val, unsigned size)
2055 {
2056 MegasasState *s = opaque;
2057 PCIDevice *pci_dev = PCI_DEVICE(s);
2058 uint64_t frame_addr;
2059 uint32_t frame_count;
2060 int i;
2061
2062 switch (addr) {
2063 case MFI_IDB:
2064 trace_megasas_mmio_writel("MFI_IDB", val);
2065 if (val & MFI_FWINIT_ABORT) {
2066 /* Abort all pending cmds */
2067 for (i = 0; i < s->fw_cmds; i++) {
2068 megasas_abort_command(&s->frames[i]);
2069 }
2070 }
2071 if (val & MFI_FWINIT_READY) {
2072 /* move to FW READY */
2073 megasas_soft_reset(s);
2074 }
2075 if (val & MFI_FWINIT_MFIMODE) {
2076 /* discard MFIs */
2077 }
2078 if (val & MFI_FWINIT_STOP_ADP) {
2079 /* Terminal error, stop processing */
2080 s->fw_state = MFI_FWSTATE_FAULT;
2081 }
2082 break;
2083 case MFI_OMSK:
2084 trace_megasas_mmio_writel("MFI_OMSK", val);
2085 s->intr_mask = val;
2086 if (!megasas_intr_enabled(s) &&
2087 !msi_enabled(pci_dev) &&
2088 !msix_enabled(pci_dev)) {
2089 trace_megasas_irq_lower();
2090 pci_irq_deassert(pci_dev);
2091 }
2092 if (megasas_intr_enabled(s)) {
2093 if (msix_enabled(pci_dev)) {
2094 trace_megasas_msix_enabled(0);
2095 } else if (msi_enabled(pci_dev)) {
2096 trace_megasas_msi_enabled(0);
2097 } else {
2098 trace_megasas_intr_enabled();
2099 }
2100 } else {
2101 trace_megasas_intr_disabled();
2102 megasas_soft_reset(s);
2103 }
2104 break;
2105 case MFI_ODCR0:
2106 trace_megasas_mmio_writel("MFI_ODCR0", val);
2107 s->doorbell = 0;
2108 if (megasas_intr_enabled(s)) {
2109 if (!msix_enabled(pci_dev) && !msi_enabled(pci_dev)) {
2110 trace_megasas_irq_lower();
2111 pci_irq_deassert(pci_dev);
2112 }
2113 }
2114 break;
2115 case MFI_IQPH:
2116 trace_megasas_mmio_writel("MFI_IQPH", val);
2117 /* Received high 32 bits of a 64 bit MFI frame address */
2118 s->frame_hi = val;
2119 break;
2120 case MFI_IQPL:
2121 trace_megasas_mmio_writel("MFI_IQPL", val);
2122 /* Received low 32 bits of a 64 bit MFI frame address */
2123 /* Fallthrough */
2124 case MFI_IQP:
2125 if (addr == MFI_IQP) {
2126 trace_megasas_mmio_writel("MFI_IQP", val);
2127 /* Received 64 bit MFI frame address */
2128 s->frame_hi = 0;
2129 }
2130 frame_addr = (val & ~0x1F);
2131 /* Add possible 64 bit offset */
2132 frame_addr |= ((uint64_t)s->frame_hi << 32);
2133 s->frame_hi = 0;
2134 frame_count = (val >> 1) & 0xF;
2135 megasas_handle_frame(s, frame_addr, frame_count);
2136 break;
2137 case MFI_SEQ:
2138 trace_megasas_mmio_writel("MFI_SEQ", val);
2139 /* Magic sequence to start ADP reset */
2140 if (adp_reset_seq[s->adp_reset] == val) {
2141 s->adp_reset++;
2142 } else {
2143 s->adp_reset = 0;
2144 s->diag = 0;
2145 }
2146 if (s->adp_reset == 6) {
2147 s->diag = MFI_DIAG_WRITE_ENABLE;
2148 }
2149 break;
2150 case MFI_DIAG:
2151 trace_megasas_mmio_writel("MFI_DIAG", val);
2152 /* ADP reset */
2153 if ((s->diag & MFI_DIAG_WRITE_ENABLE) &&
2154 (val & MFI_DIAG_RESET_ADP)) {
2155 s->diag |= MFI_DIAG_RESET_ADP;
2156 megasas_soft_reset(s);
2157 s->adp_reset = 0;
2158 s->diag = 0;
2159 }
2160 break;
2161 default:
2162 trace_megasas_mmio_invalid_writel(addr, val);
2163 break;
2164 }
2165 }
2166
2167 static const MemoryRegionOps megasas_mmio_ops = {
2168 .read = megasas_mmio_read,
2169 .write = megasas_mmio_write,
2170 .endianness = DEVICE_LITTLE_ENDIAN,
2171 .impl = {
2172 .min_access_size = 8,
2173 .max_access_size = 8,
2174 }
2175 };
2176
2177 static uint64_t megasas_port_read(void *opaque, hwaddr addr,
2178 unsigned size)
2179 {
2180 return megasas_mmio_read(opaque, addr & 0xff, size);
2181 }
2182
2183 static void megasas_port_write(void *opaque, hwaddr addr,
2184 uint64_t val, unsigned size)
2185 {
2186 megasas_mmio_write(opaque, addr & 0xff, val, size);
2187 }
2188
2189 static const MemoryRegionOps megasas_port_ops = {
2190 .read = megasas_port_read,
2191 .write = megasas_port_write,
2192 .endianness = DEVICE_LITTLE_ENDIAN,
2193 .impl = {
2194 .min_access_size = 4,
2195 .max_access_size = 4,
2196 }
2197 };
2198
2199 static uint64_t megasas_queue_read(void *opaque, hwaddr addr,
2200 unsigned size)
2201 {
2202 return 0;
2203 }
2204
2205 static void megasas_queue_write(void *opaque, hwaddr addr,
2206 uint64_t val, unsigned size)
2207 {
2208 return;
2209 }
2210
2211 static const MemoryRegionOps megasas_queue_ops = {
2212 .read = megasas_queue_read,
2213 .write = megasas_queue_write,
2214 .endianness = DEVICE_LITTLE_ENDIAN,
2215 .impl = {
2216 .min_access_size = 8,
2217 .max_access_size = 8,
2218 }
2219 };
2220
2221 static void megasas_soft_reset(MegasasState *s)
2222 {
2223 int i;
2224 MegasasCmd *cmd;
2225
2226 trace_megasas_reset(s->fw_state);
2227 for (i = 0; i < s->fw_cmds; i++) {
2228 cmd = &s->frames[i];
2229 megasas_abort_command(cmd);
2230 }
2231 if (s->fw_state == MFI_FWSTATE_READY) {
2232 BusChild *kid;
2233
2234 /*
2235 * The EFI firmware doesn't handle UA,
2236 * so we need to clear the Power On/Reset UA
2237 * after the initial reset.
2238 */
2239 QTAILQ_FOREACH(kid, &s->bus.qbus.children, sibling) {
2240 SCSIDevice *sdev = DO_UPCAST(SCSIDevice, qdev, kid->child);
2241
2242 sdev->unit_attention = SENSE_CODE(NO_SENSE);
2243 scsi_device_unit_attention_reported(sdev);
2244 }
2245 }
2246 megasas_reset_frames(s);
2247 s->reply_queue_len = s->fw_cmds;
2248 s->reply_queue_pa = 0;
2249 s->consumer_pa = 0;
2250 s->producer_pa = 0;
2251 s->fw_state = MFI_FWSTATE_READY;
2252 s->doorbell = 0;
2253 s->intr_mask = MEGASAS_INTR_DISABLED_MASK;
2254 s->frame_hi = 0;
2255 s->flags &= ~MEGASAS_MASK_USE_QUEUE64;
2256 s->event_count++;
2257 s->boot_event = s->event_count;
2258 }
2259
2260 static void megasas_scsi_reset(DeviceState *dev)
2261 {
2262 MegasasState *s = MEGASAS(dev);
2263
2264 megasas_soft_reset(s);
2265 }
2266
2267 static const VMStateDescription vmstate_megasas_gen1 = {
2268 .name = "megasas",
2269 .version_id = 0,
2270 .minimum_version_id = 0,
2271 .fields = (VMStateField[]) {
2272 VMSTATE_PCI_DEVICE(parent_obj, MegasasState),
2273 VMSTATE_MSIX(parent_obj, MegasasState),
2274
2275 VMSTATE_INT32(fw_state, MegasasState),
2276 VMSTATE_INT32(intr_mask, MegasasState),
2277 VMSTATE_INT32(doorbell, MegasasState),
2278 VMSTATE_UINT64(reply_queue_pa, MegasasState),
2279 VMSTATE_UINT64(consumer_pa, MegasasState),
2280 VMSTATE_UINT64(producer_pa, MegasasState),
2281 VMSTATE_END_OF_LIST()
2282 }
2283 };
2284
2285 static const VMStateDescription vmstate_megasas_gen2 = {
2286 .name = "megasas-gen2",
2287 .version_id = 0,
2288 .minimum_version_id = 0,
2289 .minimum_version_id_old = 0,
2290 .fields = (VMStateField[]) {
2291 VMSTATE_PCIE_DEVICE(parent_obj, MegasasState),
2292 VMSTATE_MSIX(parent_obj, MegasasState),
2293
2294 VMSTATE_INT32(fw_state, MegasasState),
2295 VMSTATE_INT32(intr_mask, MegasasState),
2296 VMSTATE_INT32(doorbell, MegasasState),
2297 VMSTATE_UINT64(reply_queue_pa, MegasasState),
2298 VMSTATE_UINT64(consumer_pa, MegasasState),
2299 VMSTATE_UINT64(producer_pa, MegasasState),
2300 VMSTATE_END_OF_LIST()
2301 }
2302 };
2303
2304 static void megasas_scsi_uninit(PCIDevice *d)
2305 {
2306 MegasasState *s = MEGASAS(d);
2307
2308 if (megasas_use_msix(s)) {
2309 msix_uninit(d, &s->mmio_io, &s->mmio_io);
2310 }
2311 if (megasas_use_msi(s)) {
2312 msi_uninit(d);
2313 }
2314 }
2315
2316 static const struct SCSIBusInfo megasas_scsi_info = {
2317 .tcq = true,
2318 .max_target = MFI_MAX_LD,
2319 .max_lun = 255,
2320
2321 .transfer_data = megasas_xfer_complete,
2322 .get_sg_list = megasas_get_sg_list,
2323 .complete = megasas_command_complete,
2324 .cancel = megasas_command_cancel,
2325 };
2326
2327 static void megasas_scsi_realize(PCIDevice *dev, Error **errp)
2328 {
2329 DeviceState *d = DEVICE(dev);
2330 MegasasState *s = MEGASAS(dev);
2331 MegasasBaseClass *b = MEGASAS_DEVICE_GET_CLASS(s);
2332 uint8_t *pci_conf;
2333 int i, bar_type;
2334
2335 pci_conf = dev->config;
2336
2337 /* PCI latency timer = 0 */
2338 pci_conf[PCI_LATENCY_TIMER] = 0;
2339 /* Interrupt pin 1 */
2340 pci_conf[PCI_INTERRUPT_PIN] = 0x01;
2341
2342 memory_region_init_io(&s->mmio_io, OBJECT(s), &megasas_mmio_ops, s,
2343 "megasas-mmio", 0x4000);
2344 memory_region_init_io(&s->port_io, OBJECT(s), &megasas_port_ops, s,
2345 "megasas-io", 256);
2346 memory_region_init_io(&s->queue_io, OBJECT(s), &megasas_queue_ops, s,
2347 "megasas-queue", 0x40000);
2348
2349 if (megasas_use_msi(s) &&
2350 msi_init(dev, 0x50, 1, true, false)) {
2351 s->flags &= ~MEGASAS_MASK_USE_MSI;
2352 }
2353 if (megasas_use_msix(s) &&
2354 msix_init(dev, 15, &s->mmio_io, b->mmio_bar, 0x2000,
2355 &s->mmio_io, b->mmio_bar, 0x3800, 0x68)) {
2356 s->flags &= ~MEGASAS_MASK_USE_MSIX;
2357 }
2358 if (pci_is_express(dev)) {
2359 pcie_endpoint_cap_init(dev, 0xa0);
2360 }
2361
2362 bar_type = PCI_BASE_ADDRESS_SPACE_MEMORY | PCI_BASE_ADDRESS_MEM_TYPE_64;
2363 pci_register_bar(dev, b->ioport_bar,
2364 PCI_BASE_ADDRESS_SPACE_IO, &s->port_io);
2365 pci_register_bar(dev, b->mmio_bar, bar_type, &s->mmio_io);
2366 pci_register_bar(dev, 3, bar_type, &s->queue_io);
2367
2368 if (megasas_use_msix(s)) {
2369 msix_vector_use(dev, 0);
2370 }
2371
2372 s->fw_state = MFI_FWSTATE_READY;
2373 if (!s->sas_addr) {
2374 s->sas_addr = ((NAA_LOCALLY_ASSIGNED_ID << 24) |
2375 IEEE_COMPANY_LOCALLY_ASSIGNED) << 36;
2376 s->sas_addr |= (pci_bus_num(dev->bus) << 16);
2377 s->sas_addr |= (PCI_SLOT(dev->devfn) << 8);
2378 s->sas_addr |= PCI_FUNC(dev->devfn);
2379 }
2380 if (!s->hba_serial) {
2381 s->hba_serial = g_strdup(MEGASAS_HBA_SERIAL);
2382 }
2383 if (s->fw_sge >= MEGASAS_MAX_SGE - MFI_PASS_FRAME_SIZE) {
2384 s->fw_sge = MEGASAS_MAX_SGE - MFI_PASS_FRAME_SIZE;
2385 } else if (s->fw_sge >= 128 - MFI_PASS_FRAME_SIZE) {
2386 s->fw_sge = 128 - MFI_PASS_FRAME_SIZE;
2387 } else {
2388 s->fw_sge = 64 - MFI_PASS_FRAME_SIZE;
2389 }
2390 if (s->fw_cmds > MEGASAS_MAX_FRAMES) {
2391 s->fw_cmds = MEGASAS_MAX_FRAMES;
2392 }
2393 trace_megasas_init(s->fw_sge, s->fw_cmds,
2394 megasas_is_jbod(s) ? "jbod" : "raid");
2395
2396 if (megasas_is_jbod(s)) {
2397 s->fw_luns = MFI_MAX_SYS_PDS;
2398 } else {
2399 s->fw_luns = MFI_MAX_LD;
2400 }
2401 s->producer_pa = 0;
2402 s->consumer_pa = 0;
2403 for (i = 0; i < s->fw_cmds; i++) {
2404 s->frames[i].index = i;
2405 s->frames[i].context = -1;
2406 s->frames[i].pa = 0;
2407 s->frames[i].state = s;
2408 }
2409
2410 scsi_bus_new(&s->bus, sizeof(s->bus), DEVICE(dev),
2411 &megasas_scsi_info, NULL);
2412 if (!d->hotplugged) {
2413 scsi_bus_legacy_handle_cmdline(&s->bus, errp);
2414 }
2415 }
2416
2417 static Property megasas_properties_gen1[] = {
2418 DEFINE_PROP_UINT32("max_sge", MegasasState, fw_sge,
2419 MEGASAS_DEFAULT_SGE),
2420 DEFINE_PROP_UINT32("max_cmds", MegasasState, fw_cmds,
2421 MEGASAS_DEFAULT_FRAMES),
2422 DEFINE_PROP_STRING("hba_serial", MegasasState, hba_serial),
2423 DEFINE_PROP_UINT64("sas_address", MegasasState, sas_addr, 0),
2424 DEFINE_PROP_BIT("use_msi", MegasasState, flags,
2425 MEGASAS_FLAG_USE_MSI, false),
2426 DEFINE_PROP_BIT("use_msix", MegasasState, flags,
2427 MEGASAS_FLAG_USE_MSIX, false),
2428 DEFINE_PROP_BIT("use_jbod", MegasasState, flags,
2429 MEGASAS_FLAG_USE_JBOD, false),
2430 DEFINE_PROP_END_OF_LIST(),
2431 };
2432
2433 static Property megasas_properties_gen2[] = {
2434 DEFINE_PROP_UINT32("max_sge", MegasasState, fw_sge,
2435 MEGASAS_DEFAULT_SGE),
2436 DEFINE_PROP_UINT32("max_cmds", MegasasState, fw_cmds,
2437 MEGASAS_GEN2_DEFAULT_FRAMES),
2438 DEFINE_PROP_STRING("hba_serial", MegasasState, hba_serial),
2439 DEFINE_PROP_UINT64("sas_address", MegasasState, sas_addr, 0),
2440 DEFINE_PROP_BIT("use_msi", MegasasState, flags,
2441 MEGASAS_FLAG_USE_MSI, true),
2442 DEFINE_PROP_BIT("use_msix", MegasasState, flags,
2443 MEGASAS_FLAG_USE_MSIX, true),
2444 DEFINE_PROP_BIT("use_jbod", MegasasState, flags,
2445 MEGASAS_FLAG_USE_JBOD, false),
2446 DEFINE_PROP_END_OF_LIST(),
2447 };
2448
2449 typedef struct MegasasInfo {
2450 const char *name;
2451 const char *desc;
2452 const char *product_name;
2453 const char *product_version;
2454 uint16_t device_id;
2455 uint16_t subsystem_id;
2456 int ioport_bar;
2457 int mmio_bar;
2458 bool is_express;
2459 int osts;
2460 const VMStateDescription *vmsd;
2461 Property *props;
2462 } MegasasInfo;
2463
2464 static struct MegasasInfo megasas_devices[] = {
2465 {
2466 .name = TYPE_MEGASAS_GEN1,
2467 .desc = "LSI MegaRAID SAS 1078",
2468 .product_name = "LSI MegaRAID SAS 8708EM2",
2469 .product_version = MEGASAS_VERSION_GEN1,
2470 .device_id = PCI_DEVICE_ID_LSI_SAS1078,
2471 .subsystem_id = 0x1013,
2472 .ioport_bar = 2,
2473 .mmio_bar = 0,
2474 .osts = MFI_1078_RM | 1,
2475 .is_express = false,
2476 .vmsd = &vmstate_megasas_gen1,
2477 .props = megasas_properties_gen1,
2478 },{
2479 .name = TYPE_MEGASAS_GEN2,
2480 .desc = "LSI MegaRAID SAS 2108",
2481 .product_name = "LSI MegaRAID SAS 9260-8i",
2482 .product_version = MEGASAS_VERSION_GEN2,
2483 .device_id = PCI_DEVICE_ID_LSI_SAS0079,
2484 .subsystem_id = 0x9261,
2485 .ioport_bar = 0,
2486 .mmio_bar = 1,
2487 .osts = MFI_GEN2_RM,
2488 .is_express = true,
2489 .vmsd = &vmstate_megasas_gen2,
2490 .props = megasas_properties_gen2,
2491 }
2492 };
2493
2494 static void megasas_class_init(ObjectClass *oc, void *data)
2495 {
2496 DeviceClass *dc = DEVICE_CLASS(oc);
2497 PCIDeviceClass *pc = PCI_DEVICE_CLASS(oc);
2498 MegasasBaseClass *e = MEGASAS_DEVICE_CLASS(oc);
2499 const MegasasInfo *info = data;
2500
2501 pc->realize = megasas_scsi_realize;
2502 pc->exit = megasas_scsi_uninit;
2503 pc->vendor_id = PCI_VENDOR_ID_LSI_LOGIC;
2504 pc->device_id = info->device_id;
2505 pc->subsystem_vendor_id = PCI_VENDOR_ID_LSI_LOGIC;
2506 pc->subsystem_id = info->subsystem_id;
2507 pc->class_id = PCI_CLASS_STORAGE_RAID;
2508 pc->is_express = info->is_express;
2509 e->mmio_bar = info->mmio_bar;
2510 e->ioport_bar = info->ioport_bar;
2511 e->osts = info->osts;
2512 e->product_name = info->product_name;
2513 e->product_version = info->product_version;
2514 dc->props = info->props;
2515 dc->reset = megasas_scsi_reset;
2516 dc->vmsd = info->vmsd;
2517 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
2518 dc->desc = info->desc;
2519 }
2520
2521 static const TypeInfo megasas_info = {
2522 .name = TYPE_MEGASAS_BASE,
2523 .parent = TYPE_PCI_DEVICE,
2524 .instance_size = sizeof(MegasasState),
2525 .class_size = sizeof(MegasasBaseClass),
2526 .abstract = true,
2527 };
2528
2529 static void megasas_register_types(void)
2530 {
2531 int i;
2532
2533 type_register_static(&megasas_info);
2534 for (i = 0; i < ARRAY_SIZE(megasas_devices); i++) {
2535 const MegasasInfo *info = &megasas_devices[i];
2536 TypeInfo type_info = {};
2537
2538 type_info.name = info->name;
2539 type_info.parent = TYPE_MEGASAS_BASE;
2540 type_info.class_data = (void *)info;
2541 type_info.class_init = megasas_class_init;
2542
2543 type_register(&type_info);
2544 }
2545 }
2546
2547 type_init(megasas_register_types)
AR7 emulation for QEMU