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vfio-ccw: add force unlimited prefetch property
[qemu.git] / hw / scsi / megasas.c
blobba1afa3c1efe4e2a8c925909dfd9b586061f0ca9
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 "qemu/osdep.h"
22 #include "hw/hw.h"
23 #include "hw/pci/pci.h"
24 #include "sysemu/dma.h"
25 #include "sysemu/block-backend.h"
26 #include "hw/pci/msi.h"
27 #include "hw/pci/msix.h"
28 #include "qemu/iov.h"
29 #include "hw/scsi/scsi.h"
30 #include "scsi/constants.h"
31 #include "trace.h"
32 #include "qapi/error.h"
33 #include "mfi.h"
34
35 #define MEGASAS_VERSION_GEN1 "1.70"
36 #define MEGASAS_VERSION_GEN2 "1.80"
37 #define MEGASAS_MAX_FRAMES 2048 /* Firmware limit at 65535 */
38 #define MEGASAS_DEFAULT_FRAMES 1000 /* Windows requires this */
39 #define MEGASAS_GEN2_DEFAULT_FRAMES 1008 /* Windows requires this */
40 #define MEGASAS_MAX_SGE 128 /* Firmware limit */
41 #define MEGASAS_DEFAULT_SGE 80
42 #define MEGASAS_MAX_SECTORS 0xFFFF /* No real limit */
43 #define MEGASAS_MAX_ARRAYS 128
44
45 #define MEGASAS_HBA_SERIAL "QEMU123456"
46 #define NAA_LOCALLY_ASSIGNED_ID 0x3ULL
47 #define IEEE_COMPANY_LOCALLY_ASSIGNED 0x525400
48
49 #define MEGASAS_FLAG_USE_JBOD 0
50 #define MEGASAS_MASK_USE_JBOD (1 << MEGASAS_FLAG_USE_JBOD)
51 #define MEGASAS_FLAG_USE_QUEUE64 1
52 #define MEGASAS_MASK_USE_QUEUE64 (1 << MEGASAS_FLAG_USE_QUEUE64)
53
54 static const char *mfi_frame_desc[] = {
55 "MFI init", "LD Read", "LD Write", "LD SCSI", "PD SCSI",
56 "MFI Doorbell", "MFI Abort", "MFI SMP", "MFI Stop"};
57
58 typedef struct MegasasCmd {
59 uint32_t index;
60 uint16_t flags;
61 uint16_t count;
62 uint64_t context;
63
64 hwaddr pa;
65 hwaddr pa_size;
66 uint32_t dcmd_opcode;
67 union mfi_frame *frame;
68 SCSIRequest *req;
69 QEMUSGList qsg;
70 void *iov_buf;
71 size_t iov_size;
72 size_t iov_offset;
73 struct MegasasState *state;
74 } MegasasCmd;
75
76 typedef struct MegasasState {
77 /*< private >*/
78 PCIDevice parent_obj;
79 /*< public >*/
80
81 MemoryRegion mmio_io;
82 MemoryRegion port_io;
83 MemoryRegion queue_io;
84 uint32_t frame_hi;
85
86 int fw_state;
87 uint32_t fw_sge;
88 uint32_t fw_cmds;
89 uint32_t flags;
90 int fw_luns;
91 int intr_mask;
92 int doorbell;
93 int busy;
94 int diag;
95 int adp_reset;
96 OnOffAuto msi;
97 OnOffAuto msix;
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_msix(MegasasState *s)
160 {
161 return s->msix != ON_OFF_AUTO_OFF;
162 }
163
164 static bool megasas_is_jbod(MegasasState *s)
165 {
166 return s->flags & MEGASAS_MASK_USE_JBOD;
167 }
168
169 static void megasas_frame_set_cmd_status(MegasasState *s,
170 unsigned long frame, uint8_t v)
171 {
172 PCIDevice *pci = &s->parent_obj;
173 stb_pci_dma(pci, frame + offsetof(struct mfi_frame_header, cmd_status), v);
174 }
175
176 static void megasas_frame_set_scsi_status(MegasasState *s,
177 unsigned long frame, uint8_t v)
178 {
179 PCIDevice *pci = &s->parent_obj;
180 stb_pci_dma(pci, frame + offsetof(struct mfi_frame_header, scsi_status), v);
181 }
182
183 /*
184 * Context is considered opaque, but the HBA firmware is running
185 * in little endian mode. So convert it to little endian, too.
186 */
187 static uint64_t megasas_frame_get_context(MegasasState *s,
188 unsigned long frame)
189 {
190 PCIDevice *pci = &s->parent_obj;
191 return ldq_le_pci_dma(pci, frame + offsetof(struct mfi_frame_header, context));
192 }
193
194 static bool megasas_frame_is_ieee_sgl(MegasasCmd *cmd)
195 {
196 return cmd->flags & MFI_FRAME_IEEE_SGL;
197 }
198
199 static bool megasas_frame_is_sgl64(MegasasCmd *cmd)
200 {
201 return cmd->flags & MFI_FRAME_SGL64;
202 }
203
204 static bool megasas_frame_is_sense64(MegasasCmd *cmd)
205 {
206 return cmd->flags & MFI_FRAME_SENSE64;
207 }
208
209 static uint64_t megasas_sgl_get_addr(MegasasCmd *cmd,
210 union mfi_sgl *sgl)
211 {
212 uint64_t addr;
213
214 if (megasas_frame_is_ieee_sgl(cmd)) {
215 addr = le64_to_cpu(sgl->sg_skinny->addr);
216 } else if (megasas_frame_is_sgl64(cmd)) {
217 addr = le64_to_cpu(sgl->sg64->addr);
218 } else {
219 addr = le32_to_cpu(sgl->sg32->addr);
220 }
221 return addr;
222 }
223
224 static uint32_t megasas_sgl_get_len(MegasasCmd *cmd,
225 union mfi_sgl *sgl)
226 {
227 uint32_t len;
228
229 if (megasas_frame_is_ieee_sgl(cmd)) {
230 len = le32_to_cpu(sgl->sg_skinny->len);
231 } else if (megasas_frame_is_sgl64(cmd)) {
232 len = le32_to_cpu(sgl->sg64->len);
233 } else {
234 len = le32_to_cpu(sgl->sg32->len);
235 }
236 return len;
237 }
238
239 static union mfi_sgl *megasas_sgl_next(MegasasCmd *cmd,
240 union mfi_sgl *sgl)
241 {
242 uint8_t *next = (uint8_t *)sgl;
243
244 if (megasas_frame_is_ieee_sgl(cmd)) {
245 next += sizeof(struct mfi_sg_skinny);
246 } else if (megasas_frame_is_sgl64(cmd)) {
247 next += sizeof(struct mfi_sg64);
248 } else {
249 next += sizeof(struct mfi_sg32);
250 }
251
252 if (next >= (uint8_t *)cmd->frame + cmd->pa_size) {
253 return NULL;
254 }
255 return (union mfi_sgl *)next;
256 }
257
258 static void megasas_soft_reset(MegasasState *s);
259
260 static int megasas_map_sgl(MegasasState *s, MegasasCmd *cmd, union mfi_sgl *sgl)
261 {
262 int i;
263 int iov_count = 0;
264 size_t iov_size = 0;
265
266 cmd->flags = le16_to_cpu(cmd->frame->header.flags);
267 iov_count = cmd->frame->header.sge_count;
268 if (iov_count > MEGASAS_MAX_SGE) {
269 trace_megasas_iovec_sgl_overflow(cmd->index, iov_count,
270 MEGASAS_MAX_SGE);
271 return iov_count;
272 }
273 pci_dma_sglist_init(&cmd->qsg, PCI_DEVICE(s), iov_count);
274 for (i = 0; i < iov_count; i++) {
275 dma_addr_t iov_pa, iov_size_p;
276
277 if (!sgl) {
278 trace_megasas_iovec_sgl_underflow(cmd->index, i);
279 goto unmap;
280 }
281 iov_pa = megasas_sgl_get_addr(cmd, sgl);
282 iov_size_p = megasas_sgl_get_len(cmd, sgl);
283 if (!iov_pa || !iov_size_p) {
284 trace_megasas_iovec_sgl_invalid(cmd->index, i,
285 iov_pa, iov_size_p);
286 goto unmap;
287 }
288 qemu_sglist_add(&cmd->qsg, iov_pa, iov_size_p);
289 sgl = megasas_sgl_next(cmd, sgl);
290 iov_size += (size_t)iov_size_p;
291 }
292 if (cmd->iov_size > iov_size) {
293 trace_megasas_iovec_overflow(cmd->index, iov_size, cmd->iov_size);
294 } else if (cmd->iov_size < iov_size) {
295 trace_megasas_iovec_underflow(cmd->index, iov_size, cmd->iov_size);
296 }
297 cmd->iov_offset = 0;
298 return 0;
299 unmap:
300 qemu_sglist_destroy(&cmd->qsg);
301 return iov_count - i;
302 }
303
304 /*
305 * passthrough sense and io sense are at the same offset
306 */
307 static int megasas_build_sense(MegasasCmd *cmd, uint8_t *sense_ptr,
308 uint8_t sense_len)
309 {
310 PCIDevice *pcid = PCI_DEVICE(cmd->state);
311 uint32_t pa_hi = 0, pa_lo;
312 hwaddr pa;
313 int frame_sense_len;
314
315 frame_sense_len = cmd->frame->header.sense_len;
316 if (sense_len > frame_sense_len) {
317 sense_len = frame_sense_len;
318 }
319 if (sense_len) {
320 pa_lo = le32_to_cpu(cmd->frame->pass.sense_addr_lo);
321 if (megasas_frame_is_sense64(cmd)) {
322 pa_hi = le32_to_cpu(cmd->frame->pass.sense_addr_hi);
323 }
324 pa = ((uint64_t) pa_hi << 32) | pa_lo;
325 pci_dma_write(pcid, pa, sense_ptr, sense_len);
326 cmd->frame->header.sense_len = sense_len;
327 }
328 return sense_len;
329 }
330
331 static void megasas_write_sense(MegasasCmd *cmd, SCSISense sense)
332 {
333 uint8_t sense_buf[SCSI_SENSE_BUF_SIZE];
334 uint8_t sense_len = 18;
335
336 memset(sense_buf, 0, sense_len);
337 sense_buf[0] = 0xf0;
338 sense_buf[2] = sense.key;
339 sense_buf[7] = 10;
340 sense_buf[12] = sense.asc;
341 sense_buf[13] = sense.ascq;
342 megasas_build_sense(cmd, sense_buf, sense_len);
343 }
344
345 static void megasas_copy_sense(MegasasCmd *cmd)
346 {
347 uint8_t sense_buf[SCSI_SENSE_BUF_SIZE];
348 uint8_t sense_len;
349
350 sense_len = scsi_req_get_sense(cmd->req, sense_buf,
351 SCSI_SENSE_BUF_SIZE);
352 megasas_build_sense(cmd, sense_buf, sense_len);
353 }
354
355 /*
356 * Format an INQUIRY CDB
357 */
358 static int megasas_setup_inquiry(uint8_t *cdb, int pg, int len)
359 {
360 memset(cdb, 0, 6);
361 cdb[0] = INQUIRY;
362 if (pg > 0) {
363 cdb[1] = 0x1;
364 cdb[2] = pg;
365 }
366 cdb[3] = (len >> 8) & 0xff;
367 cdb[4] = (len & 0xff);
368 return len;
369 }
370
371 /*
372 * Encode lba and len into a READ_16/WRITE_16 CDB
373 */
374 static void megasas_encode_lba(uint8_t *cdb, uint64_t lba,
375 uint32_t len, bool is_write)
376 {
377 memset(cdb, 0x0, 16);
378 if (is_write) {
379 cdb[0] = WRITE_16;
380 } else {
381 cdb[0] = READ_16;
382 }
383 cdb[2] = (lba >> 56) & 0xff;
384 cdb[3] = (lba >> 48) & 0xff;
385 cdb[4] = (lba >> 40) & 0xff;
386 cdb[5] = (lba >> 32) & 0xff;
387 cdb[6] = (lba >> 24) & 0xff;
388 cdb[7] = (lba >> 16) & 0xff;
389 cdb[8] = (lba >> 8) & 0xff;
390 cdb[9] = (lba) & 0xff;
391 cdb[10] = (len >> 24) & 0xff;
392 cdb[11] = (len >> 16) & 0xff;
393 cdb[12] = (len >> 8) & 0xff;
394 cdb[13] = (len) & 0xff;
395 }
396
397 /*
398 * Utility functions
399 */
400 static uint64_t megasas_fw_time(void)
401 {
402 struct tm curtime;
403
404 qemu_get_timedate(&curtime, 0);
405 return ((uint64_t)curtime.tm_sec & 0xff) << 48 |
406 ((uint64_t)curtime.tm_min & 0xff) << 40 |
407 ((uint64_t)curtime.tm_hour & 0xff) << 32 |
408 ((uint64_t)curtime.tm_mday & 0xff) << 24 |
409 ((uint64_t)curtime.tm_mon & 0xff) << 16 |
410 ((uint64_t)(curtime.tm_year + 1900) & 0xffff);
411 }
412
413 /*
414 * Default disk sata address
415 * 0x1221 is the magic number as
416 * present in real hardware,
417 * so use it here, too.
418 */
419 static uint64_t megasas_get_sata_addr(uint16_t id)
420 {
421 uint64_t addr = (0x1221ULL << 48);
422 return addr | ((uint64_t)id << 24);
423 }
424
425 /*
426 * Frame handling
427 */
428 static int megasas_next_index(MegasasState *s, int index, int limit)
429 {
430 index++;
431 if (index == limit) {
432 index = 0;
433 }
434 return index;
435 }
436
437 static MegasasCmd *megasas_lookup_frame(MegasasState *s,
438 hwaddr frame)
439 {
440 MegasasCmd *cmd = NULL;
441 int num = 0, index;
442
443 index = s->reply_queue_head;
444
445 while (num < s->fw_cmds) {
446 if (s->frames[index].pa && s->frames[index].pa == frame) {
447 cmd = &s->frames[index];
448 break;
449 }
450 index = megasas_next_index(s, index, s->fw_cmds);
451 num++;
452 }
453
454 return cmd;
455 }
456
457 static void megasas_unmap_frame(MegasasState *s, MegasasCmd *cmd)
458 {
459 PCIDevice *p = PCI_DEVICE(s);
460
461 if (cmd->pa_size) {
462 pci_dma_unmap(p, cmd->frame, cmd->pa_size, 0, 0);
463 }
464 cmd->frame = NULL;
465 cmd->pa = 0;
466 cmd->pa_size = 0;
467 clear_bit(cmd->index, s->frame_map);
468 }
469
470 /*
471 * This absolutely needs to be locked if
472 * qemu ever goes multithreaded.
473 */
474 static MegasasCmd *megasas_enqueue_frame(MegasasState *s,
475 hwaddr frame, uint64_t context, int count)
476 {
477 PCIDevice *pcid = PCI_DEVICE(s);
478 MegasasCmd *cmd = NULL;
479 int frame_size = MFI_FRAME_SIZE * 16;
480 hwaddr frame_size_p = frame_size;
481 unsigned long index;
482
483 index = 0;
484 while (index < s->fw_cmds) {
485 index = find_next_zero_bit(s->frame_map, s->fw_cmds, index);
486 if (!s->frames[index].pa)
487 break;
488 /* Busy frame found */
489 trace_megasas_qf_mapped(index);
490 }
491 if (index >= s->fw_cmds) {
492 /* All frames busy */
493 trace_megasas_qf_busy(frame);
494 return NULL;
495 }
496 cmd = &s->frames[index];
497 set_bit(index, s->frame_map);
498 trace_megasas_qf_new(index, frame);
499
500 cmd->pa = frame;
501 /* Map all possible frames */
502 cmd->frame = pci_dma_map(pcid, frame, &frame_size_p, 0);
503 if (frame_size_p != frame_size) {
504 trace_megasas_qf_map_failed(cmd->index, (unsigned long)frame);
505 if (cmd->frame) {
506 megasas_unmap_frame(s, cmd);
507 }
508 s->event_count++;
509 return NULL;
510 }
511 cmd->pa_size = frame_size_p;
512 cmd->context = context;
513 if (!megasas_use_queue64(s)) {
514 cmd->context &= (uint64_t)0xFFFFFFFF;
515 }
516 cmd->count = count;
517 cmd->dcmd_opcode = -1;
518 s->busy++;
519
520 if (s->consumer_pa) {
521 s->reply_queue_tail = ldl_le_pci_dma(pcid, s->consumer_pa);
522 }
523 trace_megasas_qf_enqueue(cmd->index, cmd->count, cmd->context,
524 s->reply_queue_head, s->reply_queue_tail, s->busy);
525
526 return cmd;
527 }
528
529 static void megasas_complete_frame(MegasasState *s, uint64_t context)
530 {
531 PCIDevice *pci_dev = PCI_DEVICE(s);
532 int tail, queue_offset;
533
534 /* Decrement busy count */
535 s->busy--;
536 if (s->reply_queue_pa) {
537 /*
538 * Put command on the reply queue.
539 * Context is opaque, but emulation is running in
540 * little endian. So convert it.
541 */
542 if (megasas_use_queue64(s)) {
543 queue_offset = s->reply_queue_head * sizeof(uint64_t);
544 stq_le_pci_dma(pci_dev, s->reply_queue_pa + queue_offset, context);
545 } else {
546 queue_offset = s->reply_queue_head * sizeof(uint32_t);
547 stl_le_pci_dma(pci_dev, s->reply_queue_pa + queue_offset, context);
548 }
549 s->reply_queue_tail = ldl_le_pci_dma(pci_dev, s->consumer_pa);
550 trace_megasas_qf_complete(context, s->reply_queue_head,
551 s->reply_queue_tail, s->busy);
552 }
553
554 if (megasas_intr_enabled(s)) {
555 /* Update reply queue pointer */
556 s->reply_queue_tail = ldl_le_pci_dma(pci_dev, s->consumer_pa);
557 tail = s->reply_queue_head;
558 s->reply_queue_head = megasas_next_index(s, tail, s->fw_cmds);
559 trace_megasas_qf_update(s->reply_queue_head, s->reply_queue_tail,
560 s->busy);
561 stl_le_pci_dma(pci_dev, s->producer_pa, s->reply_queue_head);
562 /* Notify HBA */
563 if (msix_enabled(pci_dev)) {
564 trace_megasas_msix_raise(0);
565 msix_notify(pci_dev, 0);
566 } else if (msi_enabled(pci_dev)) {
567 trace_megasas_msi_raise(0);
568 msi_notify(pci_dev, 0);
569 } else {
570 s->doorbell++;
571 if (s->doorbell == 1) {
572 trace_megasas_irq_raise();
573 pci_irq_assert(pci_dev);
574 }
575 }
576 } else {
577 trace_megasas_qf_complete_noirq(context);
578 }
579 }
580
581 static void megasas_complete_command(MegasasCmd *cmd)
582 {
583 qemu_sglist_destroy(&cmd->qsg);
584 cmd->iov_size = 0;
585 cmd->iov_offset = 0;
586
587 cmd->req->hba_private = NULL;
588 scsi_req_unref(cmd->req);
589 cmd->req = NULL;
590
591 megasas_unmap_frame(cmd->state, cmd);
592 megasas_complete_frame(cmd->state, cmd->context);
593 }
594
595 static void megasas_reset_frames(MegasasState *s)
596 {
597 int i;
598 MegasasCmd *cmd;
599
600 for (i = 0; i < s->fw_cmds; i++) {
601 cmd = &s->frames[i];
602 if (cmd->pa) {
603 megasas_unmap_frame(s, cmd);
604 }
605 }
606 bitmap_zero(s->frame_map, MEGASAS_MAX_FRAMES);
607 }
608
609 static void megasas_abort_command(MegasasCmd *cmd)
610 {
611 /* Never abort internal commands. */
612 if (cmd->dcmd_opcode != -1) {
613 return;
614 }
615 if (cmd->req != NULL) {
616 scsi_req_cancel(cmd->req);
617 }
618 }
619
620 static int megasas_init_firmware(MegasasState *s, MegasasCmd *cmd)
621 {
622 PCIDevice *pcid = PCI_DEVICE(s);
623 uint32_t pa_hi, pa_lo;
624 hwaddr iq_pa, initq_size = sizeof(struct mfi_init_qinfo);
625 struct mfi_init_qinfo *initq = NULL;
626 uint32_t flags;
627 int ret = MFI_STAT_OK;
628
629 if (s->reply_queue_pa) {
630 trace_megasas_initq_mapped(s->reply_queue_pa);
631 goto out;
632 }
633 pa_lo = le32_to_cpu(cmd->frame->init.qinfo_new_addr_lo);
634 pa_hi = le32_to_cpu(cmd->frame->init.qinfo_new_addr_hi);
635 iq_pa = (((uint64_t) pa_hi << 32) | pa_lo);
636 trace_megasas_init_firmware((uint64_t)iq_pa);
637 initq = pci_dma_map(pcid, iq_pa, &initq_size, 0);
638 if (!initq || initq_size != sizeof(*initq)) {
639 trace_megasas_initq_map_failed(cmd->index);
640 s->event_count++;
641 ret = MFI_STAT_MEMORY_NOT_AVAILABLE;
642 goto out;
643 }
644 s->reply_queue_len = le32_to_cpu(initq->rq_entries) & 0xFFFF;
645 if (s->reply_queue_len > s->fw_cmds) {
646 trace_megasas_initq_mismatch(s->reply_queue_len, s->fw_cmds);
647 s->event_count++;
648 ret = MFI_STAT_INVALID_PARAMETER;
649 goto out;
650 }
651 pa_lo = le32_to_cpu(initq->rq_addr_lo);
652 pa_hi = le32_to_cpu(initq->rq_addr_hi);
653 s->reply_queue_pa = ((uint64_t) pa_hi << 32) | pa_lo;
654 pa_lo = le32_to_cpu(initq->ci_addr_lo);
655 pa_hi = le32_to_cpu(initq->ci_addr_hi);
656 s->consumer_pa = ((uint64_t) pa_hi << 32) | pa_lo;
657 pa_lo = le32_to_cpu(initq->pi_addr_lo);
658 pa_hi = le32_to_cpu(initq->pi_addr_hi);
659 s->producer_pa = ((uint64_t) pa_hi << 32) | pa_lo;
660 s->reply_queue_head = ldl_le_pci_dma(pcid, s->producer_pa);
661 s->reply_queue_head %= MEGASAS_MAX_FRAMES;
662 s->reply_queue_tail = ldl_le_pci_dma(pcid, s->consumer_pa);
663 s->reply_queue_tail %= MEGASAS_MAX_FRAMES;
664 flags = le32_to_cpu(initq->flags);
665 if (flags & MFI_QUEUE_FLAG_CONTEXT64) {
666 s->flags |= MEGASAS_MASK_USE_QUEUE64;
667 }
668 trace_megasas_init_queue((unsigned long)s->reply_queue_pa,
669 s->reply_queue_len, s->reply_queue_head,
670 s->reply_queue_tail, flags);
671 megasas_reset_frames(s);
672 s->fw_state = MFI_FWSTATE_OPERATIONAL;
673 out:
674 if (initq) {
675 pci_dma_unmap(pcid, initq, initq_size, 0, 0);
676 }
677 return ret;
678 }
679
680 static int megasas_map_dcmd(MegasasState *s, MegasasCmd *cmd)
681 {
682 dma_addr_t iov_pa, iov_size;
683 int iov_count;
684
685 cmd->flags = le16_to_cpu(cmd->frame->header.flags);
686 iov_count = cmd->frame->header.sge_count;
687 if (!iov_count) {
688 trace_megasas_dcmd_zero_sge(cmd->index);
689 cmd->iov_size = 0;
690 return 0;
691 } else if (iov_count > 1) {
692 trace_megasas_dcmd_invalid_sge(cmd->index, iov_count);
693 cmd->iov_size = 0;
694 return -EINVAL;
695 }
696 iov_pa = megasas_sgl_get_addr(cmd, &cmd->frame->dcmd.sgl);
697 iov_size = megasas_sgl_get_len(cmd, &cmd->frame->dcmd.sgl);
698 pci_dma_sglist_init(&cmd->qsg, PCI_DEVICE(s), 1);
699 qemu_sglist_add(&cmd->qsg, iov_pa, iov_size);
700 cmd->iov_size = iov_size;
701 return 0;
702 }
703
704 static void megasas_finish_dcmd(MegasasCmd *cmd, uint32_t iov_size)
705 {
706 trace_megasas_finish_dcmd(cmd->index, iov_size);
707
708 if (iov_size > cmd->iov_size) {
709 if (megasas_frame_is_ieee_sgl(cmd)) {
710 cmd->frame->dcmd.sgl.sg_skinny->len = cpu_to_le32(iov_size);
711 } else if (megasas_frame_is_sgl64(cmd)) {
712 cmd->frame->dcmd.sgl.sg64->len = cpu_to_le32(iov_size);
713 } else {
714 cmd->frame->dcmd.sgl.sg32->len = cpu_to_le32(iov_size);
715 }
716 }
717 }
718
719 static int megasas_ctrl_get_info(MegasasState *s, MegasasCmd *cmd)
720 {
721 PCIDevice *pci_dev = PCI_DEVICE(s);
722 PCIDeviceClass *pci_class = PCI_DEVICE_GET_CLASS(pci_dev);
723 MegasasBaseClass *base_class = MEGASAS_DEVICE_GET_CLASS(s);
724 struct mfi_ctrl_info info;
725 size_t dcmd_size = sizeof(info);
726 BusChild *kid;
727 int num_pd_disks = 0;
728
729 memset(&info, 0x0, dcmd_size);
730 if (cmd->iov_size < dcmd_size) {
731 trace_megasas_dcmd_invalid_xfer_len(cmd->index, cmd->iov_size,
732 dcmd_size);
733 return MFI_STAT_INVALID_PARAMETER;
734 }
735
736 info.pci.vendor = cpu_to_le16(pci_class->vendor_id);
737 info.pci.device = cpu_to_le16(pci_class->device_id);
738 info.pci.subvendor = cpu_to_le16(pci_class->subsystem_vendor_id);
739 info.pci.subdevice = cpu_to_le16(pci_class->subsystem_id);
740
741 /*
742 * For some reason the firmware supports
743 * only up to 8 device ports.
744 * Despite supporting a far larger number
745 * of devices for the physical devices.
746 * So just display the first 8 devices
747 * in the device port list, independent
748 * of how many logical devices are actually
749 * present.
750 */
751 info.host.type = MFI_INFO_HOST_PCIE;
752 info.device.type = MFI_INFO_DEV_SAS3G;
753 info.device.port_count = 8;
754 QTAILQ_FOREACH(kid, &s->bus.qbus.children, sibling) {
755 SCSIDevice *sdev = SCSI_DEVICE(kid->child);
756 uint16_t pd_id;
757
758 if (num_pd_disks < 8) {
759 pd_id = ((sdev->id & 0xFF) << 8) | (sdev->lun & 0xFF);
760 info.device.port_addr[num_pd_disks] =
761 cpu_to_le64(megasas_get_sata_addr(pd_id));
762 }
763 num_pd_disks++;
764 }
765
766 memcpy(info.product_name, base_class->product_name, 24);
767 snprintf(info.serial_number, 32, "%s", s->hba_serial);
768 snprintf(info.package_version, 0x60, "%s-QEMU", qemu_hw_version());
769 memcpy(info.image_component[0].name, "APP", 3);
770 snprintf(info.image_component[0].version, 10, "%s-QEMU",
771 base_class->product_version);
772 memcpy(info.image_component[0].build_date, "Apr 1 2014", 11);
773 memcpy(info.image_component[0].build_time, "12:34:56", 8);
774 info.image_component_count = 1;
775 if (pci_dev->has_rom) {
776 uint8_t biosver[32];
777 uint8_t *ptr;
778
779 ptr = memory_region_get_ram_ptr(&pci_dev->rom);
780 memcpy(biosver, ptr + 0x41, 31);
781 biosver[31] = 0;
782 memcpy(info.image_component[1].name, "BIOS", 4);
783 memcpy(info.image_component[1].version, biosver,
784 strlen((const char *)biosver));
785 info.image_component_count++;
786 }
787 info.current_fw_time = cpu_to_le32(megasas_fw_time());
788 info.max_arms = 32;
789 info.max_spans = 8;
790 info.max_arrays = MEGASAS_MAX_ARRAYS;
791 info.max_lds = MFI_MAX_LD;
792 info.max_cmds = cpu_to_le16(s->fw_cmds);
793 info.max_sg_elements = cpu_to_le16(s->fw_sge);
794 info.max_request_size = cpu_to_le32(MEGASAS_MAX_SECTORS);
795 if (!megasas_is_jbod(s))
796 info.lds_present = cpu_to_le16(num_pd_disks);
797 info.pd_present = cpu_to_le16(num_pd_disks);
798 info.pd_disks_present = cpu_to_le16(num_pd_disks);
799 info.hw_present = cpu_to_le32(MFI_INFO_HW_NVRAM |
800 MFI_INFO_HW_MEM |
801 MFI_INFO_HW_FLASH);
802 info.memory_size = cpu_to_le16(512);
803 info.nvram_size = cpu_to_le16(32);
804 info.flash_size = cpu_to_le16(16);
805 info.raid_levels = cpu_to_le32(MFI_INFO_RAID_0);
806 info.adapter_ops = cpu_to_le32(MFI_INFO_AOPS_RBLD_RATE |
807 MFI_INFO_AOPS_SELF_DIAGNOSTIC |
808 MFI_INFO_AOPS_MIXED_ARRAY);
809 info.ld_ops = cpu_to_le32(MFI_INFO_LDOPS_DISK_CACHE_POLICY |
810 MFI_INFO_LDOPS_ACCESS_POLICY |
811 MFI_INFO_LDOPS_IO_POLICY |
812 MFI_INFO_LDOPS_WRITE_POLICY |
813 MFI_INFO_LDOPS_READ_POLICY);
814 info.max_strips_per_io = cpu_to_le16(s->fw_sge);
815 info.stripe_sz_ops.min = 3;
816 info.stripe_sz_ops.max = ctz32(MEGASAS_MAX_SECTORS + 1);
817 info.properties.pred_fail_poll_interval = cpu_to_le16(300);
818 info.properties.intr_throttle_cnt = cpu_to_le16(16);
819 info.properties.intr_throttle_timeout = cpu_to_le16(50);
820 info.properties.rebuild_rate = 30;
821 info.properties.patrol_read_rate = 30;
822 info.properties.bgi_rate = 30;
823 info.properties.cc_rate = 30;
824 info.properties.recon_rate = 30;
825 info.properties.cache_flush_interval = 4;
826 info.properties.spinup_drv_cnt = 2;
827 info.properties.spinup_delay = 6;
828 info.properties.ecc_bucket_size = 15;
829 info.properties.ecc_bucket_leak_rate = cpu_to_le16(1440);
830 info.properties.expose_encl_devices = 1;
831 info.properties.OnOffProperties = cpu_to_le32(MFI_CTRL_PROP_EnableJBOD);
832 info.pd_ops = cpu_to_le32(MFI_INFO_PDOPS_FORCE_ONLINE |
833 MFI_INFO_PDOPS_FORCE_OFFLINE);
834 info.pd_mix_support = cpu_to_le32(MFI_INFO_PDMIX_SAS |
835 MFI_INFO_PDMIX_SATA |
836 MFI_INFO_PDMIX_LD);
837
838 cmd->iov_size -= dma_buf_read((uint8_t *)&info, dcmd_size, &cmd->qsg);
839 return MFI_STAT_OK;
840 }
841
842 static int megasas_mfc_get_defaults(MegasasState *s, MegasasCmd *cmd)
843 {
844 struct mfi_defaults info;
845 size_t dcmd_size = sizeof(struct mfi_defaults);
846
847 memset(&info, 0x0, dcmd_size);
848 if (cmd->iov_size < dcmd_size) {
849 trace_megasas_dcmd_invalid_xfer_len(cmd->index, cmd->iov_size,
850 dcmd_size);
851 return MFI_STAT_INVALID_PARAMETER;
852 }
853
854 info.sas_addr = cpu_to_le64(s->sas_addr);
855 info.stripe_size = 3;
856 info.flush_time = 4;
857 info.background_rate = 30;
858 info.allow_mix_in_enclosure = 1;
859 info.allow_mix_in_ld = 1;
860 info.direct_pd_mapping = 1;
861 /* Enable for BIOS support */
862 info.bios_enumerate_lds = 1;
863 info.disable_ctrl_r = 1;
864 info.expose_enclosure_devices = 1;
865 info.disable_preboot_cli = 1;
866 info.cluster_disable = 1;
867
868 cmd->iov_size -= dma_buf_read((uint8_t *)&info, dcmd_size, &cmd->qsg);
869 return MFI_STAT_OK;
870 }
871
872 static int megasas_dcmd_get_bios_info(MegasasState *s, MegasasCmd *cmd)
873 {
874 struct mfi_bios_data info;
875 size_t dcmd_size = sizeof(info);
876
877 memset(&info, 0x0, dcmd_size);
878 if (cmd->iov_size < dcmd_size) {
879 trace_megasas_dcmd_invalid_xfer_len(cmd->index, cmd->iov_size,
880 dcmd_size);
881 return MFI_STAT_INVALID_PARAMETER;
882 }
883 info.continue_on_error = 1;
884 info.verbose = 1;
885 if (megasas_is_jbod(s)) {
886 info.expose_all_drives = 1;
887 }
888
889 cmd->iov_size -= dma_buf_read((uint8_t *)&info, dcmd_size, &cmd->qsg);
890 return MFI_STAT_OK;
891 }
892
893 static int megasas_dcmd_get_fw_time(MegasasState *s, MegasasCmd *cmd)
894 {
895 uint64_t fw_time;
896 size_t dcmd_size = sizeof(fw_time);
897
898 fw_time = cpu_to_le64(megasas_fw_time());
899
900 cmd->iov_size -= dma_buf_read((uint8_t *)&fw_time, dcmd_size, &cmd->qsg);
901 return MFI_STAT_OK;
902 }
903
904 static int megasas_dcmd_set_fw_time(MegasasState *s, MegasasCmd *cmd)
905 {
906 uint64_t fw_time;
907
908 /* This is a dummy; setting of firmware time is not allowed */
909 memcpy(&fw_time, cmd->frame->dcmd.mbox, sizeof(fw_time));
910
911 trace_megasas_dcmd_set_fw_time(cmd->index, fw_time);
912 fw_time = cpu_to_le64(megasas_fw_time());
913 return MFI_STAT_OK;
914 }
915
916 static int megasas_event_info(MegasasState *s, MegasasCmd *cmd)
917 {
918 struct mfi_evt_log_state info;
919 size_t dcmd_size = sizeof(info);
920
921 memset(&info, 0, dcmd_size);
922
923 info.newest_seq_num = cpu_to_le32(s->event_count);
924 info.shutdown_seq_num = cpu_to_le32(s->shutdown_event);
925 info.boot_seq_num = cpu_to_le32(s->boot_event);
926
927 cmd->iov_size -= dma_buf_read((uint8_t *)&info, dcmd_size, &cmd->qsg);
928 return MFI_STAT_OK;
929 }
930
931 static int megasas_event_wait(MegasasState *s, MegasasCmd *cmd)
932 {
933 union mfi_evt event;
934
935 if (cmd->iov_size < sizeof(struct mfi_evt_detail)) {
936 trace_megasas_dcmd_invalid_xfer_len(cmd->index, cmd->iov_size,
937 sizeof(struct mfi_evt_detail));
938 return MFI_STAT_INVALID_PARAMETER;
939 }
940 s->event_count = cpu_to_le32(cmd->frame->dcmd.mbox[0]);
941 event.word = cpu_to_le32(cmd->frame->dcmd.mbox[4]);
942 s->event_locale = event.members.locale;
943 s->event_class = event.members.class;
944 s->event_cmd = cmd;
945 /* Decrease busy count; event frame doesn't count here */
946 s->busy--;
947 cmd->iov_size = sizeof(struct mfi_evt_detail);
948 return MFI_STAT_INVALID_STATUS;
949 }
950
951 static int megasas_dcmd_pd_get_list(MegasasState *s, MegasasCmd *cmd)
952 {
953 struct mfi_pd_list info;
954 size_t dcmd_size = sizeof(info);
955 BusChild *kid;
956 uint32_t offset, dcmd_limit, num_pd_disks = 0, max_pd_disks;
957
958 memset(&info, 0, dcmd_size);
959 offset = 8;
960 dcmd_limit = offset + sizeof(struct mfi_pd_address);
961 if (cmd->iov_size < dcmd_limit) {
962 trace_megasas_dcmd_invalid_xfer_len(cmd->index, cmd->iov_size,
963 dcmd_limit);
964 return MFI_STAT_INVALID_PARAMETER;
965 }
966
967 max_pd_disks = (cmd->iov_size - offset) / sizeof(struct mfi_pd_address);
968 if (max_pd_disks > MFI_MAX_SYS_PDS) {
969 max_pd_disks = MFI_MAX_SYS_PDS;
970 }
971 QTAILQ_FOREACH(kid, &s->bus.qbus.children, sibling) {
972 SCSIDevice *sdev = SCSI_DEVICE(kid->child);
973 uint16_t pd_id;
974
975 if (num_pd_disks >= max_pd_disks)
976 break;
977
978 pd_id = ((sdev->id & 0xFF) << 8) | (sdev->lun & 0xFF);
979 info.addr[num_pd_disks].device_id = cpu_to_le16(pd_id);
980 info.addr[num_pd_disks].encl_device_id = 0xFFFF;
981 info.addr[num_pd_disks].encl_index = 0;
982 info.addr[num_pd_disks].slot_number = sdev->id & 0xFF;
983 info.addr[num_pd_disks].scsi_dev_type = sdev->type;
984 info.addr[num_pd_disks].connect_port_bitmap = 0x1;
985 info.addr[num_pd_disks].sas_addr[0] =
986 cpu_to_le64(megasas_get_sata_addr(pd_id));
987 num_pd_disks++;
988 offset += sizeof(struct mfi_pd_address);
989 }
990 trace_megasas_dcmd_pd_get_list(cmd->index, num_pd_disks,
991 max_pd_disks, offset);
992
993 info.size = cpu_to_le32(offset);
994 info.count = cpu_to_le32(num_pd_disks);
995
996 cmd->iov_size -= dma_buf_read((uint8_t *)&info, offset, &cmd->qsg);
997 return MFI_STAT_OK;
998 }
999
1000 static int megasas_dcmd_pd_list_query(MegasasState *s, MegasasCmd *cmd)
1001 {
1002 uint16_t flags;
1003
1004 /* mbox0 contains flags */
1005 flags = le16_to_cpu(cmd->frame->dcmd.mbox[0]);
1006 trace_megasas_dcmd_pd_list_query(cmd->index, flags);
1007 if (flags == MR_PD_QUERY_TYPE_ALL ||
1008 megasas_is_jbod(s)) {
1009 return megasas_dcmd_pd_get_list(s, cmd);
1010 }
1011
1012 return MFI_STAT_OK;
1013 }
1014
1015 static int megasas_pd_get_info_submit(SCSIDevice *sdev, int lun,
1016 MegasasCmd *cmd)
1017 {
1018 struct mfi_pd_info *info = cmd->iov_buf;
1019 size_t dcmd_size = sizeof(struct mfi_pd_info);
1020 uint64_t pd_size;
1021 uint16_t pd_id = ((sdev->id & 0xFF) << 8) | (lun & 0xFF);
1022 uint8_t cmdbuf[6];
1023 size_t len, resid;
1024
1025 if (!cmd->iov_buf) {
1026 cmd->iov_buf = g_malloc0(dcmd_size);
1027 info = cmd->iov_buf;
1028 info->inquiry_data[0] = 0x7f; /* Force PQual 0x3, PType 0x1f */
1029 info->vpd_page83[0] = 0x7f;
1030 megasas_setup_inquiry(cmdbuf, 0, sizeof(info->inquiry_data));
1031 cmd->req = scsi_req_new(sdev, cmd->index, lun, cmdbuf, cmd);
1032 if (!cmd->req) {
1033 trace_megasas_dcmd_req_alloc_failed(cmd->index,
1034 "PD get info std inquiry");
1035 g_free(cmd->iov_buf);
1036 cmd->iov_buf = NULL;
1037 return MFI_STAT_FLASH_ALLOC_FAIL;
1038 }
1039 trace_megasas_dcmd_internal_submit(cmd->index,
1040 "PD get info std inquiry", lun);
1041 len = scsi_req_enqueue(cmd->req);
1042 if (len > 0) {
1043 cmd->iov_size = len;
1044 scsi_req_continue(cmd->req);
1045 }
1046 return MFI_STAT_INVALID_STATUS;
1047 } else if (info->inquiry_data[0] != 0x7f && info->vpd_page83[0] == 0x7f) {
1048 megasas_setup_inquiry(cmdbuf, 0x83, sizeof(info->vpd_page83));
1049 cmd->req = scsi_req_new(sdev, cmd->index, lun, cmdbuf, cmd);
1050 if (!cmd->req) {
1051 trace_megasas_dcmd_req_alloc_failed(cmd->index,
1052 "PD get info vpd inquiry");
1053 return MFI_STAT_FLASH_ALLOC_FAIL;
1054 }
1055 trace_megasas_dcmd_internal_submit(cmd->index,
1056 "PD get info vpd inquiry", lun);
1057 len = scsi_req_enqueue(cmd->req);
1058 if (len > 0) {
1059 cmd->iov_size = len;
1060 scsi_req_continue(cmd->req);
1061 }
1062 return MFI_STAT_INVALID_STATUS;
1063 }
1064 /* Finished, set FW state */
1065 if ((info->inquiry_data[0] >> 5) == 0) {
1066 if (megasas_is_jbod(cmd->state)) {
1067 info->fw_state = cpu_to_le16(MFI_PD_STATE_SYSTEM);
1068 } else {
1069 info->fw_state = cpu_to_le16(MFI_PD_STATE_ONLINE);
1070 }
1071 } else {
1072 info->fw_state = cpu_to_le16(MFI_PD_STATE_OFFLINE);
1073 }
1074
1075 info->ref.v.device_id = cpu_to_le16(pd_id);
1076 info->state.ddf.pd_type = cpu_to_le16(MFI_PD_DDF_TYPE_IN_VD|
1077 MFI_PD_DDF_TYPE_INTF_SAS);
1078 blk_get_geometry(sdev->conf.blk, &pd_size);
1079 info->raw_size = cpu_to_le64(pd_size);
1080 info->non_coerced_size = cpu_to_le64(pd_size);
1081 info->coerced_size = cpu_to_le64(pd_size);
1082 info->encl_device_id = 0xFFFF;
1083 info->slot_number = (sdev->id & 0xFF);
1084 info->path_info.count = 1;
1085 info->path_info.sas_addr[0] =
1086 cpu_to_le64(megasas_get_sata_addr(pd_id));
1087 info->connected_port_bitmap = 0x1;
1088 info->device_speed = 1;
1089 info->link_speed = 1;
1090 resid = dma_buf_read(cmd->iov_buf, dcmd_size, &cmd->qsg);
1091 g_free(cmd->iov_buf);
1092 cmd->iov_size = dcmd_size - resid;
1093 cmd->iov_buf = NULL;
1094 return MFI_STAT_OK;
1095 }
1096
1097 static int megasas_dcmd_pd_get_info(MegasasState *s, MegasasCmd *cmd)
1098 {
1099 size_t dcmd_size = sizeof(struct mfi_pd_info);
1100 uint16_t pd_id;
1101 uint8_t target_id, lun_id;
1102 SCSIDevice *sdev = NULL;
1103 int retval = MFI_STAT_DEVICE_NOT_FOUND;
1104
1105 if (cmd->iov_size < dcmd_size) {
1106 return MFI_STAT_INVALID_PARAMETER;
1107 }
1108
1109 /* mbox0 has the ID */
1110 pd_id = le16_to_cpu(cmd->frame->dcmd.mbox[0]);
1111 target_id = (pd_id >> 8) & 0xFF;
1112 lun_id = pd_id & 0xFF;
1113 sdev = scsi_device_find(&s->bus, 0, target_id, lun_id);
1114 trace_megasas_dcmd_pd_get_info(cmd->index, pd_id);
1115
1116 if (sdev) {
1117 /* Submit inquiry */
1118 retval = megasas_pd_get_info_submit(sdev, pd_id, cmd);
1119 }
1120
1121 return retval;
1122 }
1123
1124 static int megasas_dcmd_ld_get_list(MegasasState *s, MegasasCmd *cmd)
1125 {
1126 struct mfi_ld_list info;
1127 size_t dcmd_size = sizeof(info), resid;
1128 uint32_t num_ld_disks = 0, max_ld_disks;
1129 uint64_t ld_size;
1130 BusChild *kid;
1131
1132 memset(&info, 0, dcmd_size);
1133 if (cmd->iov_size > dcmd_size) {
1134 trace_megasas_dcmd_invalid_xfer_len(cmd->index, cmd->iov_size,
1135 dcmd_size);
1136 return MFI_STAT_INVALID_PARAMETER;
1137 }
1138
1139 max_ld_disks = (cmd->iov_size - 8) / 16;
1140 if (megasas_is_jbod(s)) {
1141 max_ld_disks = 0;
1142 }
1143 if (max_ld_disks > MFI_MAX_LD) {
1144 max_ld_disks = MFI_MAX_LD;
1145 }
1146 QTAILQ_FOREACH(kid, &s->bus.qbus.children, sibling) {
1147 SCSIDevice *sdev = SCSI_DEVICE(kid->child);
1148
1149 if (num_ld_disks >= max_ld_disks) {
1150 break;
1151 }
1152 /* Logical device size is in blocks */
1153 blk_get_geometry(sdev->conf.blk, &ld_size);
1154 info.ld_list[num_ld_disks].ld.v.target_id = sdev->id;
1155 info.ld_list[num_ld_disks].state = MFI_LD_STATE_OPTIMAL;
1156 info.ld_list[num_ld_disks].size = cpu_to_le64(ld_size);
1157 num_ld_disks++;
1158 }
1159 info.ld_count = cpu_to_le32(num_ld_disks);
1160 trace_megasas_dcmd_ld_get_list(cmd->index, num_ld_disks, max_ld_disks);
1161
1162 resid = dma_buf_read((uint8_t *)&info, dcmd_size, &cmd->qsg);
1163 cmd->iov_size = dcmd_size - resid;
1164 return MFI_STAT_OK;
1165 }
1166
1167 static int megasas_dcmd_ld_list_query(MegasasState *s, MegasasCmd *cmd)
1168 {
1169 uint16_t flags;
1170 struct mfi_ld_targetid_list info;
1171 size_t dcmd_size = sizeof(info), resid;
1172 uint32_t num_ld_disks = 0, max_ld_disks = s->fw_luns;
1173 BusChild *kid;
1174
1175 /* mbox0 contains flags */
1176 flags = le16_to_cpu(cmd->frame->dcmd.mbox[0]);
1177 trace_megasas_dcmd_ld_list_query(cmd->index, flags);
1178 if (flags != MR_LD_QUERY_TYPE_ALL &&
1179 flags != MR_LD_QUERY_TYPE_EXPOSED_TO_HOST) {
1180 max_ld_disks = 0;
1181 }
1182
1183 memset(&info, 0, dcmd_size);
1184 if (cmd->iov_size < 12) {
1185 trace_megasas_dcmd_invalid_xfer_len(cmd->index, cmd->iov_size,
1186 dcmd_size);
1187 return MFI_STAT_INVALID_PARAMETER;
1188 }
1189 dcmd_size = sizeof(uint32_t) * 2 + 3;
1190 max_ld_disks = cmd->iov_size - dcmd_size;
1191 if (megasas_is_jbod(s)) {
1192 max_ld_disks = 0;
1193 }
1194 if (max_ld_disks > MFI_MAX_LD) {
1195 max_ld_disks = MFI_MAX_LD;
1196 }
1197 QTAILQ_FOREACH(kid, &s->bus.qbus.children, sibling) {
1198 SCSIDevice *sdev = SCSI_DEVICE(kid->child);
1199
1200 if (num_ld_disks >= max_ld_disks) {
1201 break;
1202 }
1203 info.targetid[num_ld_disks] = sdev->lun;
1204 num_ld_disks++;
1205 dcmd_size++;
1206 }
1207 info.ld_count = cpu_to_le32(num_ld_disks);
1208 info.size = dcmd_size;
1209 trace_megasas_dcmd_ld_get_list(cmd->index, num_ld_disks, max_ld_disks);
1210
1211 resid = dma_buf_read((uint8_t *)&info, dcmd_size, &cmd->qsg);
1212 cmd->iov_size = dcmd_size - resid;
1213 return MFI_STAT_OK;
1214 }
1215
1216 static int megasas_ld_get_info_submit(SCSIDevice *sdev, int lun,
1217 MegasasCmd *cmd)
1218 {
1219 struct mfi_ld_info *info = cmd->iov_buf;
1220 size_t dcmd_size = sizeof(struct mfi_ld_info);
1221 uint8_t cdb[6];
1222 ssize_t len, resid;
1223 uint16_t sdev_id = ((sdev->id & 0xFF) << 8) | (lun & 0xFF);
1224 uint64_t ld_size;
1225
1226 if (!cmd->iov_buf) {
1227 cmd->iov_buf = g_malloc0(dcmd_size);
1228 info = cmd->iov_buf;
1229 megasas_setup_inquiry(cdb, 0x83, sizeof(info->vpd_page83));
1230 cmd->req = scsi_req_new(sdev, cmd->index, lun, cdb, cmd);
1231 if (!cmd->req) {
1232 trace_megasas_dcmd_req_alloc_failed(cmd->index,
1233 "LD get info vpd inquiry");
1234 g_free(cmd->iov_buf);
1235 cmd->iov_buf = NULL;
1236 return MFI_STAT_FLASH_ALLOC_FAIL;
1237 }
1238 trace_megasas_dcmd_internal_submit(cmd->index,
1239 "LD get info vpd inquiry", lun);
1240 len = scsi_req_enqueue(cmd->req);
1241 if (len > 0) {
1242 cmd->iov_size = len;
1243 scsi_req_continue(cmd->req);
1244 }
1245 return MFI_STAT_INVALID_STATUS;
1246 }
1247
1248 info->ld_config.params.state = MFI_LD_STATE_OPTIMAL;
1249 info->ld_config.properties.ld.v.target_id = lun;
1250 info->ld_config.params.stripe_size = 3;
1251 info->ld_config.params.num_drives = 1;
1252 info->ld_config.params.is_consistent = 1;
1253 /* Logical device size is in blocks */
1254 blk_get_geometry(sdev->conf.blk, &ld_size);
1255 info->size = cpu_to_le64(ld_size);
1256 memset(info->ld_config.span, 0, sizeof(info->ld_config.span));
1257 info->ld_config.span[0].start_block = 0;
1258 info->ld_config.span[0].num_blocks = info->size;
1259 info->ld_config.span[0].array_ref = cpu_to_le16(sdev_id);
1260
1261 resid = dma_buf_read(cmd->iov_buf, dcmd_size, &cmd->qsg);
1262 g_free(cmd->iov_buf);
1263 cmd->iov_size = dcmd_size - resid;
1264 cmd->iov_buf = NULL;
1265 return MFI_STAT_OK;
1266 }
1267
1268 static int megasas_dcmd_ld_get_info(MegasasState *s, MegasasCmd *cmd)
1269 {
1270 struct mfi_ld_info info;
1271 size_t dcmd_size = sizeof(info);
1272 uint16_t ld_id;
1273 uint32_t max_ld_disks = s->fw_luns;
1274 SCSIDevice *sdev = NULL;
1275 int retval = MFI_STAT_DEVICE_NOT_FOUND;
1276
1277 if (cmd->iov_size < dcmd_size) {
1278 return MFI_STAT_INVALID_PARAMETER;
1279 }
1280
1281 /* mbox0 has the ID */
1282 ld_id = le16_to_cpu(cmd->frame->dcmd.mbox[0]);
1283 trace_megasas_dcmd_ld_get_info(cmd->index, ld_id);
1284
1285 if (megasas_is_jbod(s)) {
1286 return MFI_STAT_DEVICE_NOT_FOUND;
1287 }
1288
1289 if (ld_id < max_ld_disks) {
1290 sdev = scsi_device_find(&s->bus, 0, ld_id, 0);
1291 }
1292
1293 if (sdev) {
1294 retval = megasas_ld_get_info_submit(sdev, ld_id, cmd);
1295 }
1296
1297 return retval;
1298 }
1299
1300 static int megasas_dcmd_cfg_read(MegasasState *s, MegasasCmd *cmd)
1301 {
1302 uint8_t data[4096] = { 0 };
1303 struct mfi_config_data *info;
1304 int num_pd_disks = 0, array_offset, ld_offset;
1305 BusChild *kid;
1306
1307 if (cmd->iov_size > 4096) {
1308 return MFI_STAT_INVALID_PARAMETER;
1309 }
1310
1311 QTAILQ_FOREACH(kid, &s->bus.qbus.children, sibling) {
1312 num_pd_disks++;
1313 }
1314 info = (struct mfi_config_data *)&data;
1315 /*
1316 * Array mapping:
1317 * - One array per SCSI device
1318 * - One logical drive per SCSI device
1319 * spanning the entire device
1320 */
1321 info->array_count = num_pd_disks;
1322 info->array_size = sizeof(struct mfi_array) * num_pd_disks;
1323 info->log_drv_count = num_pd_disks;
1324 info->log_drv_size = sizeof(struct mfi_ld_config) * num_pd_disks;
1325 info->spares_count = 0;
1326 info->spares_size = sizeof(struct mfi_spare);
1327 info->size = sizeof(struct mfi_config_data) + info->array_size +
1328 info->log_drv_size;
1329 if (info->size > 4096) {
1330 return MFI_STAT_INVALID_PARAMETER;
1331 }
1332
1333 array_offset = sizeof(struct mfi_config_data);
1334 ld_offset = array_offset + sizeof(struct mfi_array) * num_pd_disks;
1335
1336 QTAILQ_FOREACH(kid, &s->bus.qbus.children, sibling) {
1337 SCSIDevice *sdev = SCSI_DEVICE(kid->child);
1338 uint16_t sdev_id = ((sdev->id & 0xFF) << 8) | (sdev->lun & 0xFF);
1339 struct mfi_array *array;
1340 struct mfi_ld_config *ld;
1341 uint64_t pd_size;
1342 int i;
1343
1344 array = (struct mfi_array *)(data + array_offset);
1345 blk_get_geometry(sdev->conf.blk, &pd_size);
1346 array->size = cpu_to_le64(pd_size);
1347 array->num_drives = 1;
1348 array->array_ref = cpu_to_le16(sdev_id);
1349 array->pd[0].ref.v.device_id = cpu_to_le16(sdev_id);
1350 array->pd[0].ref.v.seq_num = 0;
1351 array->pd[0].fw_state = MFI_PD_STATE_ONLINE;
1352 array->pd[0].encl.pd = 0xFF;
1353 array->pd[0].encl.slot = (sdev->id & 0xFF);
1354 for (i = 1; i < MFI_MAX_ROW_SIZE; i++) {
1355 array->pd[i].ref.v.device_id = 0xFFFF;
1356 array->pd[i].ref.v.seq_num = 0;
1357 array->pd[i].fw_state = MFI_PD_STATE_UNCONFIGURED_GOOD;
1358 array->pd[i].encl.pd = 0xFF;
1359 array->pd[i].encl.slot = 0xFF;
1360 }
1361 array_offset += sizeof(struct mfi_array);
1362 ld = (struct mfi_ld_config *)(data + ld_offset);
1363 memset(ld, 0, sizeof(struct mfi_ld_config));
1364 ld->properties.ld.v.target_id = sdev->id;
1365 ld->properties.default_cache_policy = MR_LD_CACHE_READ_AHEAD |
1366 MR_LD_CACHE_READ_ADAPTIVE;
1367 ld->properties.current_cache_policy = MR_LD_CACHE_READ_AHEAD |
1368 MR_LD_CACHE_READ_ADAPTIVE;
1369 ld->params.state = MFI_LD_STATE_OPTIMAL;
1370 ld->params.stripe_size = 3;
1371 ld->params.num_drives = 1;
1372 ld->params.span_depth = 1;
1373 ld->params.is_consistent = 1;
1374 ld->span[0].start_block = 0;
1375 ld->span[0].num_blocks = cpu_to_le64(pd_size);
1376 ld->span[0].array_ref = cpu_to_le16(sdev_id);
1377 ld_offset += sizeof(struct mfi_ld_config);
1378 }
1379
1380 cmd->iov_size -= dma_buf_read((uint8_t *)data, info->size, &cmd->qsg);
1381 return MFI_STAT_OK;
1382 }
1383
1384 static int megasas_dcmd_get_properties(MegasasState *s, MegasasCmd *cmd)
1385 {
1386 struct mfi_ctrl_props info;
1387 size_t dcmd_size = sizeof(info);
1388
1389 memset(&info, 0x0, dcmd_size);
1390 if (cmd->iov_size < dcmd_size) {
1391 trace_megasas_dcmd_invalid_xfer_len(cmd->index, cmd->iov_size,
1392 dcmd_size);
1393 return MFI_STAT_INVALID_PARAMETER;
1394 }
1395 info.pred_fail_poll_interval = cpu_to_le16(300);
1396 info.intr_throttle_cnt = cpu_to_le16(16);
1397 info.intr_throttle_timeout = cpu_to_le16(50);
1398 info.rebuild_rate = 30;
1399 info.patrol_read_rate = 30;
1400 info.bgi_rate = 30;
1401 info.cc_rate = 30;
1402 info.recon_rate = 30;
1403 info.cache_flush_interval = 4;
1404 info.spinup_drv_cnt = 2;
1405 info.spinup_delay = 6;
1406 info.ecc_bucket_size = 15;
1407 info.ecc_bucket_leak_rate = cpu_to_le16(1440);
1408 info.expose_encl_devices = 1;
1409
1410 cmd->iov_size -= dma_buf_read((uint8_t *)&info, dcmd_size, &cmd->qsg);
1411 return MFI_STAT_OK;
1412 }
1413
1414 static int megasas_cache_flush(MegasasState *s, MegasasCmd *cmd)
1415 {
1416 blk_drain_all();
1417 return MFI_STAT_OK;
1418 }
1419
1420 static int megasas_ctrl_shutdown(MegasasState *s, MegasasCmd *cmd)
1421 {
1422 s->fw_state = MFI_FWSTATE_READY;
1423 return MFI_STAT_OK;
1424 }
1425
1426 /* Some implementations use CLUSTER RESET LD to simulate a device reset */
1427 static int megasas_cluster_reset_ld(MegasasState *s, MegasasCmd *cmd)
1428 {
1429 uint16_t target_id;
1430 int i;
1431
1432 /* mbox0 contains the device index */
1433 target_id = le16_to_cpu(cmd->frame->dcmd.mbox[0]);
1434 trace_megasas_dcmd_reset_ld(cmd->index, target_id);
1435 for (i = 0; i < s->fw_cmds; i++) {
1436 MegasasCmd *tmp_cmd = &s->frames[i];
1437 if (tmp_cmd->req && tmp_cmd->req->dev->id == target_id) {
1438 SCSIDevice *d = tmp_cmd->req->dev;
1439 qdev_reset_all(&d->qdev);
1440 }
1441 }
1442 return MFI_STAT_OK;
1443 }
1444
1445 static int megasas_dcmd_set_properties(MegasasState *s, MegasasCmd *cmd)
1446 {
1447 struct mfi_ctrl_props info;
1448 size_t dcmd_size = sizeof(info);
1449
1450 if (cmd->iov_size < dcmd_size) {
1451 trace_megasas_dcmd_invalid_xfer_len(cmd->index, cmd->iov_size,
1452 dcmd_size);
1453 return MFI_STAT_INVALID_PARAMETER;
1454 }
1455 dma_buf_write((uint8_t *)&info, dcmd_size, &cmd->qsg);
1456 trace_megasas_dcmd_unsupported(cmd->index, cmd->iov_size);
1457 return MFI_STAT_OK;
1458 }
1459
1460 static int megasas_dcmd_dummy(MegasasState *s, MegasasCmd *cmd)
1461 {
1462 trace_megasas_dcmd_dummy(cmd->index, cmd->iov_size);
1463 return MFI_STAT_OK;
1464 }
1465
1466 static const struct dcmd_cmd_tbl_t {
1467 int opcode;
1468 const char *desc;
1469 int (*func)(MegasasState *s, MegasasCmd *cmd);
1470 } dcmd_cmd_tbl[] = {
1471 { MFI_DCMD_CTRL_MFI_HOST_MEM_ALLOC, "CTRL_HOST_MEM_ALLOC",
1472 megasas_dcmd_dummy },
1473 { MFI_DCMD_CTRL_GET_INFO, "CTRL_GET_INFO",
1474 megasas_ctrl_get_info },
1475 { MFI_DCMD_CTRL_GET_PROPERTIES, "CTRL_GET_PROPERTIES",
1476 megasas_dcmd_get_properties },
1477 { MFI_DCMD_CTRL_SET_PROPERTIES, "CTRL_SET_PROPERTIES",
1478 megasas_dcmd_set_properties },
1479 { MFI_DCMD_CTRL_ALARM_GET, "CTRL_ALARM_GET",
1480 megasas_dcmd_dummy },
1481 { MFI_DCMD_CTRL_ALARM_ENABLE, "CTRL_ALARM_ENABLE",
1482 megasas_dcmd_dummy },
1483 { MFI_DCMD_CTRL_ALARM_DISABLE, "CTRL_ALARM_DISABLE",
1484 megasas_dcmd_dummy },
1485 { MFI_DCMD_CTRL_ALARM_SILENCE, "CTRL_ALARM_SILENCE",
1486 megasas_dcmd_dummy },
1487 { MFI_DCMD_CTRL_ALARM_TEST, "CTRL_ALARM_TEST",
1488 megasas_dcmd_dummy },
1489 { MFI_DCMD_CTRL_EVENT_GETINFO, "CTRL_EVENT_GETINFO",
1490 megasas_event_info },
1491 { MFI_DCMD_CTRL_EVENT_GET, "CTRL_EVENT_GET",
1492 megasas_dcmd_dummy },
1493 { MFI_DCMD_CTRL_EVENT_WAIT, "CTRL_EVENT_WAIT",
1494 megasas_event_wait },
1495 { MFI_DCMD_CTRL_SHUTDOWN, "CTRL_SHUTDOWN",
1496 megasas_ctrl_shutdown },
1497 { MFI_DCMD_HIBERNATE_STANDBY, "CTRL_STANDBY",
1498 megasas_dcmd_dummy },
1499 { MFI_DCMD_CTRL_GET_TIME, "CTRL_GET_TIME",
1500 megasas_dcmd_get_fw_time },
1501 { MFI_DCMD_CTRL_SET_TIME, "CTRL_SET_TIME",
1502 megasas_dcmd_set_fw_time },
1503 { MFI_DCMD_CTRL_BIOS_DATA_GET, "CTRL_BIOS_DATA_GET",
1504 megasas_dcmd_get_bios_info },
1505 { MFI_DCMD_CTRL_FACTORY_DEFAULTS, "CTRL_FACTORY_DEFAULTS",
1506 megasas_dcmd_dummy },
1507 { MFI_DCMD_CTRL_MFC_DEFAULTS_GET, "CTRL_MFC_DEFAULTS_GET",
1508 megasas_mfc_get_defaults },
1509 { MFI_DCMD_CTRL_MFC_DEFAULTS_SET, "CTRL_MFC_DEFAULTS_SET",
1510 megasas_dcmd_dummy },
1511 { MFI_DCMD_CTRL_CACHE_FLUSH, "CTRL_CACHE_FLUSH",
1512 megasas_cache_flush },
1513 { MFI_DCMD_PD_GET_LIST, "PD_GET_LIST",
1514 megasas_dcmd_pd_get_list },
1515 { MFI_DCMD_PD_LIST_QUERY, "PD_LIST_QUERY",
1516 megasas_dcmd_pd_list_query },
1517 { MFI_DCMD_PD_GET_INFO, "PD_GET_INFO",
1518 megasas_dcmd_pd_get_info },
1519 { MFI_DCMD_PD_STATE_SET, "PD_STATE_SET",
1520 megasas_dcmd_dummy },
1521 { MFI_DCMD_PD_REBUILD, "PD_REBUILD",
1522 megasas_dcmd_dummy },
1523 { MFI_DCMD_PD_BLINK, "PD_BLINK",
1524 megasas_dcmd_dummy },
1525 { MFI_DCMD_PD_UNBLINK, "PD_UNBLINK",
1526 megasas_dcmd_dummy },
1527 { MFI_DCMD_LD_GET_LIST, "LD_GET_LIST",
1528 megasas_dcmd_ld_get_list},
1529 { MFI_DCMD_LD_LIST_QUERY, "LD_LIST_QUERY",
1530 megasas_dcmd_ld_list_query },
1531 { MFI_DCMD_LD_GET_INFO, "LD_GET_INFO",
1532 megasas_dcmd_ld_get_info },
1533 { MFI_DCMD_LD_GET_PROP, "LD_GET_PROP",
1534 megasas_dcmd_dummy },
1535 { MFI_DCMD_LD_SET_PROP, "LD_SET_PROP",
1536 megasas_dcmd_dummy },
1537 { MFI_DCMD_LD_DELETE, "LD_DELETE",
1538 megasas_dcmd_dummy },
1539 { MFI_DCMD_CFG_READ, "CFG_READ",
1540 megasas_dcmd_cfg_read },
1541 { MFI_DCMD_CFG_ADD, "CFG_ADD",
1542 megasas_dcmd_dummy },
1543 { MFI_DCMD_CFG_CLEAR, "CFG_CLEAR",
1544 megasas_dcmd_dummy },
1545 { MFI_DCMD_CFG_FOREIGN_READ, "CFG_FOREIGN_READ",
1546 megasas_dcmd_dummy },
1547 { MFI_DCMD_CFG_FOREIGN_IMPORT, "CFG_FOREIGN_IMPORT",
1548 megasas_dcmd_dummy },
1549 { MFI_DCMD_BBU_STATUS, "BBU_STATUS",
1550 megasas_dcmd_dummy },
1551 { MFI_DCMD_BBU_CAPACITY_INFO, "BBU_CAPACITY_INFO",
1552 megasas_dcmd_dummy },
1553 { MFI_DCMD_BBU_DESIGN_INFO, "BBU_DESIGN_INFO",
1554 megasas_dcmd_dummy },
1555 { MFI_DCMD_BBU_PROP_GET, "BBU_PROP_GET",
1556 megasas_dcmd_dummy },
1557 { MFI_DCMD_CLUSTER, "CLUSTER",
1558 megasas_dcmd_dummy },
1559 { MFI_DCMD_CLUSTER_RESET_ALL, "CLUSTER_RESET_ALL",
1560 megasas_dcmd_dummy },
1561 { MFI_DCMD_CLUSTER_RESET_LD, "CLUSTER_RESET_LD",
1562 megasas_cluster_reset_ld },
1563 { -1, NULL, NULL }
1564 };
1565
1566 static int megasas_handle_dcmd(MegasasState *s, MegasasCmd *cmd)
1567 {
1568 int retval = 0;
1569 size_t len;
1570 const struct dcmd_cmd_tbl_t *cmdptr = dcmd_cmd_tbl;
1571
1572 cmd->dcmd_opcode = le32_to_cpu(cmd->frame->dcmd.opcode);
1573 trace_megasas_handle_dcmd(cmd->index, cmd->dcmd_opcode);
1574 if (megasas_map_dcmd(s, cmd) < 0) {
1575 return MFI_STAT_MEMORY_NOT_AVAILABLE;
1576 }
1577 while (cmdptr->opcode != -1 && cmdptr->opcode != cmd->dcmd_opcode) {
1578 cmdptr++;
1579 }
1580 len = cmd->iov_size;
1581 if (cmdptr->opcode == -1) {
1582 trace_megasas_dcmd_unhandled(cmd->index, cmd->dcmd_opcode, len);
1583 retval = megasas_dcmd_dummy(s, cmd);
1584 } else {
1585 trace_megasas_dcmd_enter(cmd->index, cmdptr->desc, len);
1586 retval = cmdptr->func(s, cmd);
1587 }
1588 if (retval != MFI_STAT_INVALID_STATUS) {
1589 megasas_finish_dcmd(cmd, len);
1590 }
1591 return retval;
1592 }
1593
1594 static int megasas_finish_internal_dcmd(MegasasCmd *cmd,
1595 SCSIRequest *req, size_t resid)
1596 {
1597 int retval = MFI_STAT_OK;
1598 int lun = req->lun;
1599
1600 trace_megasas_dcmd_internal_finish(cmd->index, cmd->dcmd_opcode, lun);
1601 cmd->iov_size -= resid;
1602 switch (cmd->dcmd_opcode) {
1603 case MFI_DCMD_PD_GET_INFO:
1604 retval = megasas_pd_get_info_submit(req->dev, lun, cmd);
1605 break;
1606 case MFI_DCMD_LD_GET_INFO:
1607 retval = megasas_ld_get_info_submit(req->dev, lun, cmd);
1608 break;
1609 default:
1610 trace_megasas_dcmd_internal_invalid(cmd->index, cmd->dcmd_opcode);
1611 retval = MFI_STAT_INVALID_DCMD;
1612 break;
1613 }
1614 if (retval != MFI_STAT_INVALID_STATUS) {
1615 megasas_finish_dcmd(cmd, cmd->iov_size);
1616 }
1617 return retval;
1618 }
1619
1620 static int megasas_enqueue_req(MegasasCmd *cmd, bool is_write)
1621 {
1622 int len;
1623
1624 len = scsi_req_enqueue(cmd->req);
1625 if (len < 0) {
1626 len = -len;
1627 }
1628 if (len > 0) {
1629 if (len > cmd->iov_size) {
1630 if (is_write) {
1631 trace_megasas_iov_write_overflow(cmd->index, len,
1632 cmd->iov_size);
1633 } else {
1634 trace_megasas_iov_read_overflow(cmd->index, len,
1635 cmd->iov_size);
1636 }
1637 }
1638 if (len < cmd->iov_size) {
1639 if (is_write) {
1640 trace_megasas_iov_write_underflow(cmd->index, len,
1641 cmd->iov_size);
1642 } else {
1643 trace_megasas_iov_read_underflow(cmd->index, len,
1644 cmd->iov_size);
1645 }
1646 cmd->iov_size = len;
1647 }
1648 scsi_req_continue(cmd->req);
1649 }
1650 return len;
1651 }
1652
1653 static int megasas_handle_scsi(MegasasState *s, MegasasCmd *cmd,
1654 int frame_cmd)
1655 {
1656 uint8_t *cdb;
1657 int target_id, lun_id, cdb_len;
1658 bool is_write;
1659 struct SCSIDevice *sdev = NULL;
1660 bool is_logical = (frame_cmd == MFI_CMD_LD_SCSI_IO);
1661
1662 cdb = cmd->frame->pass.cdb;
1663 target_id = cmd->frame->header.target_id;
1664 lun_id = cmd->frame->header.lun_id;
1665 cdb_len = cmd->frame->header.cdb_len;
1666
1667 if (is_logical) {
1668 if (target_id >= MFI_MAX_LD || lun_id != 0) {
1669 trace_megasas_scsi_target_not_present(
1670 mfi_frame_desc[frame_cmd], is_logical, target_id, lun_id);
1671 return MFI_STAT_DEVICE_NOT_FOUND;
1672 }
1673 }
1674 sdev = scsi_device_find(&s->bus, 0, target_id, lun_id);
1675
1676 cmd->iov_size = le32_to_cpu(cmd->frame->header.data_len);
1677 trace_megasas_handle_scsi(mfi_frame_desc[frame_cmd], is_logical,
1678 target_id, lun_id, sdev, cmd->iov_size);
1679
1680 if (!sdev || (megasas_is_jbod(s) && is_logical)) {
1681 trace_megasas_scsi_target_not_present(
1682 mfi_frame_desc[frame_cmd], is_logical, target_id, lun_id);
1683 return MFI_STAT_DEVICE_NOT_FOUND;
1684 }
1685
1686 if (cdb_len > 16) {
1687 trace_megasas_scsi_invalid_cdb_len(
1688 mfi_frame_desc[frame_cmd], is_logical,
1689 target_id, lun_id, cdb_len);
1690 megasas_write_sense(cmd, SENSE_CODE(INVALID_OPCODE));
1691 cmd->frame->header.scsi_status = CHECK_CONDITION;
1692 s->event_count++;
1693 return MFI_STAT_SCSI_DONE_WITH_ERROR;
1694 }
1695
1696 if (megasas_map_sgl(s, cmd, &cmd->frame->pass.sgl)) {
1697 megasas_write_sense(cmd, SENSE_CODE(TARGET_FAILURE));
1698 cmd->frame->header.scsi_status = CHECK_CONDITION;
1699 s->event_count++;
1700 return MFI_STAT_SCSI_DONE_WITH_ERROR;
1701 }
1702
1703 cmd->req = scsi_req_new(sdev, cmd->index, lun_id, cdb, cmd);
1704 if (!cmd->req) {
1705 trace_megasas_scsi_req_alloc_failed(
1706 mfi_frame_desc[frame_cmd], target_id, lun_id);
1707 megasas_write_sense(cmd, SENSE_CODE(NO_SENSE));
1708 cmd->frame->header.scsi_status = BUSY;
1709 s->event_count++;
1710 return MFI_STAT_SCSI_DONE_WITH_ERROR;
1711 }
1712
1713 is_write = (cmd->req->cmd.mode == SCSI_XFER_TO_DEV);
1714 if (cmd->iov_size) {
1715 if (is_write) {
1716 trace_megasas_scsi_write_start(cmd->index, cmd->iov_size);
1717 } else {
1718 trace_megasas_scsi_read_start(cmd->index, cmd->iov_size);
1719 }
1720 } else {
1721 trace_megasas_scsi_nodata(cmd->index);
1722 }
1723 megasas_enqueue_req(cmd, is_write);
1724 return MFI_STAT_INVALID_STATUS;
1725 }
1726
1727 static int megasas_handle_io(MegasasState *s, MegasasCmd *cmd, int frame_cmd)
1728 {
1729 uint32_t lba_count, lba_start_hi, lba_start_lo;
1730 uint64_t lba_start;
1731 bool is_write = (frame_cmd == MFI_CMD_LD_WRITE);
1732 uint8_t cdb[16];
1733 int len;
1734 struct SCSIDevice *sdev = NULL;
1735 int target_id, lun_id, cdb_len;
1736
1737 lba_count = le32_to_cpu(cmd->frame->io.header.data_len);
1738 lba_start_lo = le32_to_cpu(cmd->frame->io.lba_lo);
1739 lba_start_hi = le32_to_cpu(cmd->frame->io.lba_hi);
1740 lba_start = ((uint64_t)lba_start_hi << 32) | lba_start_lo;
1741
1742 target_id = cmd->frame->header.target_id;
1743 lun_id = cmd->frame->header.lun_id;
1744 cdb_len = cmd->frame->header.cdb_len;
1745
1746 if (target_id < MFI_MAX_LD && lun_id == 0) {
1747 sdev = scsi_device_find(&s->bus, 0, target_id, lun_id);
1748 }
1749
1750 trace_megasas_handle_io(cmd->index,
1751 mfi_frame_desc[frame_cmd], target_id, lun_id,
1752 (unsigned long)lba_start, (unsigned long)lba_count);
1753 if (!sdev) {
1754 trace_megasas_io_target_not_present(cmd->index,
1755 mfi_frame_desc[frame_cmd], target_id, lun_id);
1756 return MFI_STAT_DEVICE_NOT_FOUND;
1757 }
1758
1759 if (cdb_len > 16) {
1760 trace_megasas_scsi_invalid_cdb_len(
1761 mfi_frame_desc[frame_cmd], 1, target_id, lun_id, 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 lun_id, cdb, cmd);
1779 if (!cmd->req) {
1780 trace_megasas_scsi_req_alloc_failed(
1781 mfi_frame_desc[frame_cmd], target_id, lun_id);
1782 megasas_write_sense(cmd, SENSE_CODE(NO_SENSE));
1783 cmd->frame->header.scsi_status = BUSY;
1784 s->event_count++;
1785 return MFI_STAT_SCSI_DONE_WITH_ERROR;
1786 }
1787 len = megasas_enqueue_req(cmd, is_write);
1788 if (len > 0) {
1789 if (is_write) {
1790 trace_megasas_io_write_start(cmd->index, lba_start, lba_count, len);
1791 } else {
1792 trace_megasas_io_read_start(cmd->index, lba_start, lba_count, len);
1793 }
1794 }
1795 return MFI_STAT_INVALID_STATUS;
1796 }
1797
1798 static QEMUSGList *megasas_get_sg_list(SCSIRequest *req)
1799 {
1800 MegasasCmd *cmd = req->hba_private;
1801
1802 if (cmd->dcmd_opcode != -1) {
1803 return NULL;
1804 } else {
1805 return &cmd->qsg;
1806 }
1807 }
1808
1809 static void megasas_xfer_complete(SCSIRequest *req, uint32_t len)
1810 {
1811 MegasasCmd *cmd = req->hba_private;
1812 uint8_t *buf;
1813
1814 trace_megasas_io_complete(cmd->index, len);
1815
1816 if (cmd->dcmd_opcode != -1) {
1817 scsi_req_continue(req);
1818 return;
1819 }
1820
1821 buf = scsi_req_get_buf(req);
1822 if (cmd->dcmd_opcode == MFI_DCMD_PD_GET_INFO && cmd->iov_buf) {
1823 struct mfi_pd_info *info = cmd->iov_buf;
1824
1825 if (info->inquiry_data[0] == 0x7f) {
1826 memset(info->inquiry_data, 0, sizeof(info->inquiry_data));
1827 memcpy(info->inquiry_data, buf, len);
1828 } else if (info->vpd_page83[0] == 0x7f) {
1829 memset(info->vpd_page83, 0, sizeof(info->vpd_page83));
1830 memcpy(info->vpd_page83, buf, len);
1831 }
1832 scsi_req_continue(req);
1833 } else if (cmd->dcmd_opcode == MFI_DCMD_LD_GET_INFO) {
1834 struct mfi_ld_info *info = cmd->iov_buf;
1835
1836 if (cmd->iov_buf) {
1837 memcpy(info->vpd_page83, buf, sizeof(info->vpd_page83));
1838 scsi_req_continue(req);
1839 }
1840 }
1841 }
1842
1843 static void megasas_command_complete(SCSIRequest *req, uint32_t status,
1844 size_t resid)
1845 {
1846 MegasasCmd *cmd = req->hba_private;
1847 uint8_t cmd_status = MFI_STAT_OK;
1848
1849 trace_megasas_command_complete(cmd->index, status, resid);
1850
1851 if (req->io_canceled) {
1852 return;
1853 }
1854
1855 if (cmd->dcmd_opcode != -1) {
1856 /*
1857 * Internal command complete
1858 */
1859 cmd_status = megasas_finish_internal_dcmd(cmd, req, resid);
1860 if (cmd_status == MFI_STAT_INVALID_STATUS) {
1861 return;
1862 }
1863 } else {
1864 req->status = status;
1865 trace_megasas_scsi_complete(cmd->index, req->status,
1866 cmd->iov_size, req->cmd.xfer);
1867 if (req->status != GOOD) {
1868 cmd_status = MFI_STAT_SCSI_DONE_WITH_ERROR;
1869 }
1870 if (req->status == CHECK_CONDITION) {
1871 megasas_copy_sense(cmd);
1872 }
1873
1874 cmd->frame->header.scsi_status = req->status;
1875 }
1876 cmd->frame->header.cmd_status = cmd_status;
1877 megasas_complete_command(cmd);
1878 }
1879
1880 static void megasas_command_cancelled(SCSIRequest *req)
1881 {
1882 MegasasCmd *cmd = req->hba_private;
1883
1884 if (!cmd) {
1885 return;
1886 }
1887 cmd->frame->header.cmd_status = MFI_STAT_SCSI_IO_FAILED;
1888 megasas_complete_command(cmd);
1889 }
1890
1891 static int megasas_handle_abort(MegasasState *s, MegasasCmd *cmd)
1892 {
1893 uint64_t abort_ctx = le64_to_cpu(cmd->frame->abort.abort_context);
1894 hwaddr abort_addr, addr_hi, addr_lo;
1895 MegasasCmd *abort_cmd;
1896
1897 addr_hi = le32_to_cpu(cmd->frame->abort.abort_mfi_addr_hi);
1898 addr_lo = le32_to_cpu(cmd->frame->abort.abort_mfi_addr_lo);
1899 abort_addr = ((uint64_t)addr_hi << 32) | addr_lo;
1900
1901 abort_cmd = megasas_lookup_frame(s, abort_addr);
1902 if (!abort_cmd) {
1903 trace_megasas_abort_no_cmd(cmd->index, abort_ctx);
1904 s->event_count++;
1905 return MFI_STAT_OK;
1906 }
1907 if (!megasas_use_queue64(s)) {
1908 abort_ctx &= (uint64_t)0xFFFFFFFF;
1909 }
1910 if (abort_cmd->context != abort_ctx) {
1911 trace_megasas_abort_invalid_context(cmd->index, abort_cmd->context,
1912 abort_cmd->index);
1913 s->event_count++;
1914 return MFI_STAT_ABORT_NOT_POSSIBLE;
1915 }
1916 trace_megasas_abort_frame(cmd->index, abort_cmd->index);
1917 megasas_abort_command(abort_cmd);
1918 if (!s->event_cmd || abort_cmd != s->event_cmd) {
1919 s->event_cmd = NULL;
1920 }
1921 s->event_count++;
1922 return MFI_STAT_OK;
1923 }
1924
1925 static void megasas_handle_frame(MegasasState *s, uint64_t frame_addr,
1926 uint32_t frame_count)
1927 {
1928 uint8_t frame_status = MFI_STAT_INVALID_CMD;
1929 uint64_t frame_context;
1930 int frame_cmd;
1931 MegasasCmd *cmd;
1932
1933 /*
1934 * Always read 64bit context, top bits will be
1935 * masked out if required in megasas_enqueue_frame()
1936 */
1937 frame_context = megasas_frame_get_context(s, frame_addr);
1938
1939 cmd = megasas_enqueue_frame(s, frame_addr, frame_context, frame_count);
1940 if (!cmd) {
1941 /* reply queue full */
1942 trace_megasas_frame_busy(frame_addr);
1943 megasas_frame_set_scsi_status(s, frame_addr, BUSY);
1944 megasas_frame_set_cmd_status(s, frame_addr, MFI_STAT_SCSI_DONE_WITH_ERROR);
1945 megasas_complete_frame(s, frame_context);
1946 s->event_count++;
1947 return;
1948 }
1949 frame_cmd = cmd->frame->header.frame_cmd;
1950 switch (frame_cmd) {
1951 case MFI_CMD_INIT:
1952 frame_status = megasas_init_firmware(s, cmd);
1953 break;
1954 case MFI_CMD_DCMD:
1955 frame_status = megasas_handle_dcmd(s, cmd);
1956 break;
1957 case MFI_CMD_ABORT:
1958 frame_status = megasas_handle_abort(s, cmd);
1959 break;
1960 case MFI_CMD_PD_SCSI_IO:
1961 case MFI_CMD_LD_SCSI_IO:
1962 frame_status = megasas_handle_scsi(s, cmd, frame_cmd);
1963 break;
1964 case MFI_CMD_LD_READ:
1965 case MFI_CMD_LD_WRITE:
1966 frame_status = megasas_handle_io(s, cmd, frame_cmd);
1967 break;
1968 default:
1969 trace_megasas_unhandled_frame_cmd(cmd->index, frame_cmd);
1970 s->event_count++;
1971 break;
1972 }
1973 if (frame_status != MFI_STAT_INVALID_STATUS) {
1974 if (cmd->frame) {
1975 cmd->frame->header.cmd_status = frame_status;
1976 } else {
1977 megasas_frame_set_cmd_status(s, frame_addr, frame_status);
1978 }
1979 megasas_unmap_frame(s, cmd);
1980 megasas_complete_frame(s, cmd->context);
1981 }
1982 }
1983
1984 static uint64_t megasas_mmio_read(void *opaque, hwaddr addr,
1985 unsigned size)
1986 {
1987 MegasasState *s = opaque;
1988 PCIDevice *pci_dev = PCI_DEVICE(s);
1989 MegasasBaseClass *base_class = MEGASAS_DEVICE_GET_CLASS(s);
1990 uint32_t retval = 0;
1991
1992 switch (addr) {
1993 case MFI_IDB:
1994 retval = 0;
1995 trace_megasas_mmio_readl("MFI_IDB", retval);
1996 break;
1997 case MFI_OMSG0:
1998 case MFI_OSP0:
1999 retval = (msix_present(pci_dev) ? MFI_FWSTATE_MSIX_SUPPORTED : 0) |
2000 (s->fw_state & MFI_FWSTATE_MASK) |
2001 ((s->fw_sge & 0xff) << 16) |
2002 (s->fw_cmds & 0xFFFF);
2003 trace_megasas_mmio_readl(addr == MFI_OMSG0 ? "MFI_OMSG0" : "MFI_OSP0",
2004 retval);
2005 break;
2006 case MFI_OSTS:
2007 if (megasas_intr_enabled(s) && s->doorbell) {
2008 retval = base_class->osts;
2009 }
2010 trace_megasas_mmio_readl("MFI_OSTS", retval);
2011 break;
2012 case MFI_OMSK:
2013 retval = s->intr_mask;
2014 trace_megasas_mmio_readl("MFI_OMSK", retval);
2015 break;
2016 case MFI_ODCR0:
2017 retval = s->doorbell ? 1 : 0;
2018 trace_megasas_mmio_readl("MFI_ODCR0", retval);
2019 break;
2020 case MFI_DIAG:
2021 retval = s->diag;
2022 trace_megasas_mmio_readl("MFI_DIAG", retval);
2023 break;
2024 case MFI_OSP1:
2025 retval = 15;
2026 trace_megasas_mmio_readl("MFI_OSP1", retval);
2027 break;
2028 default:
2029 trace_megasas_mmio_invalid_readl(addr);
2030 break;
2031 }
2032 return retval;
2033 }
2034
2035 static int adp_reset_seq[] = {0x00, 0x04, 0x0b, 0x02, 0x07, 0x0d};
2036
2037 static void megasas_mmio_write(void *opaque, hwaddr addr,
2038 uint64_t val, unsigned size)
2039 {
2040 MegasasState *s = opaque;
2041 PCIDevice *pci_dev = PCI_DEVICE(s);
2042 uint64_t frame_addr;
2043 uint32_t frame_count;
2044 int i;
2045
2046 switch (addr) {
2047 case MFI_IDB:
2048 trace_megasas_mmio_writel("MFI_IDB", val);
2049 if (val & MFI_FWINIT_ABORT) {
2050 /* Abort all pending cmds */
2051 for (i = 0; i < s->fw_cmds; i++) {
2052 megasas_abort_command(&s->frames[i]);
2053 }
2054 }
2055 if (val & MFI_FWINIT_READY) {
2056 /* move to FW READY */
2057 megasas_soft_reset(s);
2058 }
2059 if (val & MFI_FWINIT_MFIMODE) {
2060 /* discard MFIs */
2061 }
2062 if (val & MFI_FWINIT_STOP_ADP) {
2063 /* Terminal error, stop processing */
2064 s->fw_state = MFI_FWSTATE_FAULT;
2065 }
2066 break;
2067 case MFI_OMSK:
2068 trace_megasas_mmio_writel("MFI_OMSK", val);
2069 s->intr_mask = val;
2070 if (!megasas_intr_enabled(s) &&
2071 !msi_enabled(pci_dev) &&
2072 !msix_enabled(pci_dev)) {
2073 trace_megasas_irq_lower();
2074 pci_irq_deassert(pci_dev);
2075 }
2076 if (megasas_intr_enabled(s)) {
2077 if (msix_enabled(pci_dev)) {
2078 trace_megasas_msix_enabled(0);
2079 } else if (msi_enabled(pci_dev)) {
2080 trace_megasas_msi_enabled(0);
2081 } else {
2082 trace_megasas_intr_enabled();
2083 }
2084 } else {
2085 trace_megasas_intr_disabled();
2086 megasas_soft_reset(s);
2087 }
2088 break;
2089 case MFI_ODCR0:
2090 trace_megasas_mmio_writel("MFI_ODCR0", val);
2091 s->doorbell = 0;
2092 if (megasas_intr_enabled(s)) {
2093 if (!msix_enabled(pci_dev) && !msi_enabled(pci_dev)) {
2094 trace_megasas_irq_lower();
2095 pci_irq_deassert(pci_dev);
2096 }
2097 }
2098 break;
2099 case MFI_IQPH:
2100 trace_megasas_mmio_writel("MFI_IQPH", val);
2101 /* Received high 32 bits of a 64 bit MFI frame address */
2102 s->frame_hi = val;
2103 break;
2104 case MFI_IQPL:
2105 trace_megasas_mmio_writel("MFI_IQPL", val);
2106 /* Received low 32 bits of a 64 bit MFI frame address */
2107 /* Fallthrough */
2108 case MFI_IQP:
2109 if (addr == MFI_IQP) {
2110 trace_megasas_mmio_writel("MFI_IQP", val);
2111 /* Received 64 bit MFI frame address */
2112 s->frame_hi = 0;
2113 }
2114 frame_addr = (val & ~0x1F);
2115 /* Add possible 64 bit offset */
2116 frame_addr |= ((uint64_t)s->frame_hi << 32);
2117 s->frame_hi = 0;
2118 frame_count = (val >> 1) & 0xF;
2119 megasas_handle_frame(s, frame_addr, frame_count);
2120 break;
2121 case MFI_SEQ:
2122 trace_megasas_mmio_writel("MFI_SEQ", val);
2123 /* Magic sequence to start ADP reset */
2124 if (adp_reset_seq[s->adp_reset++] == val) {
2125 if (s->adp_reset == 6) {
2126 s->adp_reset = 0;
2127 s->diag = MFI_DIAG_WRITE_ENABLE;
2128 }
2129 } else {
2130 s->adp_reset = 0;
2131 s->diag = 0;
2132 }
2133 break;
2134 case MFI_DIAG:
2135 trace_megasas_mmio_writel("MFI_DIAG", val);
2136 /* ADP reset */
2137 if ((s->diag & MFI_DIAG_WRITE_ENABLE) &&
2138 (val & MFI_DIAG_RESET_ADP)) {
2139 s->diag |= MFI_DIAG_RESET_ADP;
2140 megasas_soft_reset(s);
2141 s->adp_reset = 0;
2142 s->diag = 0;
2143 }
2144 break;
2145 default:
2146 trace_megasas_mmio_invalid_writel(addr, val);
2147 break;
2148 }
2149 }
2150
2151 static const MemoryRegionOps megasas_mmio_ops = {
2152 .read = megasas_mmio_read,
2153 .write = megasas_mmio_write,
2154 .endianness = DEVICE_LITTLE_ENDIAN,
2155 .impl = {
2156 .min_access_size = 8,
2157 .max_access_size = 8,
2158 }
2159 };
2160
2161 static uint64_t megasas_port_read(void *opaque, hwaddr addr,
2162 unsigned size)
2163 {
2164 return megasas_mmio_read(opaque, addr & 0xff, size);
2165 }
2166
2167 static void megasas_port_write(void *opaque, hwaddr addr,
2168 uint64_t val, unsigned size)
2169 {
2170 megasas_mmio_write(opaque, addr & 0xff, val, size);
2171 }
2172
2173 static const MemoryRegionOps megasas_port_ops = {
2174 .read = megasas_port_read,
2175 .write = megasas_port_write,
2176 .endianness = DEVICE_LITTLE_ENDIAN,
2177 .impl = {
2178 .min_access_size = 4,
2179 .max_access_size = 4,
2180 }
2181 };
2182
2183 static uint64_t megasas_queue_read(void *opaque, hwaddr addr,
2184 unsigned size)
2185 {
2186 return 0;
2187 }
2188
2189 static void megasas_queue_write(void *opaque, hwaddr addr,
2190 uint64_t val, unsigned size)
2191 {
2192 return;
2193 }
2194
2195 static const MemoryRegionOps megasas_queue_ops = {
2196 .read = megasas_queue_read,
2197 .write = megasas_queue_write,
2198 .endianness = DEVICE_LITTLE_ENDIAN,
2199 .impl = {
2200 .min_access_size = 8,
2201 .max_access_size = 8,
2202 }
2203 };
2204
2205 static void megasas_soft_reset(MegasasState *s)
2206 {
2207 int i;
2208 MegasasCmd *cmd;
2209
2210 trace_megasas_reset(s->fw_state);
2211 for (i = 0; i < s->fw_cmds; i++) {
2212 cmd = &s->frames[i];
2213 megasas_abort_command(cmd);
2214 }
2215 if (s->fw_state == MFI_FWSTATE_READY) {
2216 BusChild *kid;
2217
2218 /*
2219 * The EFI firmware doesn't handle UA,
2220 * so we need to clear the Power On/Reset UA
2221 * after the initial reset.
2222 */
2223 QTAILQ_FOREACH(kid, &s->bus.qbus.children, sibling) {
2224 SCSIDevice *sdev = SCSI_DEVICE(kid->child);
2225
2226 sdev->unit_attention = SENSE_CODE(NO_SENSE);
2227 scsi_device_unit_attention_reported(sdev);
2228 }
2229 }
2230 megasas_reset_frames(s);
2231 s->reply_queue_len = s->fw_cmds;
2232 s->reply_queue_pa = 0;
2233 s->consumer_pa = 0;
2234 s->producer_pa = 0;
2235 s->fw_state = MFI_FWSTATE_READY;
2236 s->doorbell = 0;
2237 s->intr_mask = MEGASAS_INTR_DISABLED_MASK;
2238 s->frame_hi = 0;
2239 s->flags &= ~MEGASAS_MASK_USE_QUEUE64;
2240 s->event_count++;
2241 s->boot_event = s->event_count;
2242 }
2243
2244 static void megasas_scsi_reset(DeviceState *dev)
2245 {
2246 MegasasState *s = MEGASAS(dev);
2247
2248 megasas_soft_reset(s);
2249 }
2250
2251 static const VMStateDescription vmstate_megasas_gen1 = {
2252 .name = "megasas",
2253 .version_id = 0,
2254 .minimum_version_id = 0,
2255 .fields = (VMStateField[]) {
2256 VMSTATE_PCI_DEVICE(parent_obj, MegasasState),
2257 VMSTATE_MSIX(parent_obj, MegasasState),
2258
2259 VMSTATE_INT32(fw_state, MegasasState),
2260 VMSTATE_INT32(intr_mask, MegasasState),
2261 VMSTATE_INT32(doorbell, MegasasState),
2262 VMSTATE_UINT64(reply_queue_pa, MegasasState),
2263 VMSTATE_UINT64(consumer_pa, MegasasState),
2264 VMSTATE_UINT64(producer_pa, MegasasState),
2265 VMSTATE_END_OF_LIST()
2266 }
2267 };
2268
2269 static const VMStateDescription vmstate_megasas_gen2 = {
2270 .name = "megasas-gen2",
2271 .version_id = 0,
2272 .minimum_version_id = 0,
2273 .minimum_version_id_old = 0,
2274 .fields = (VMStateField[]) {
2275 VMSTATE_PCI_DEVICE(parent_obj, MegasasState),
2276 VMSTATE_MSIX(parent_obj, MegasasState),
2277
2278 VMSTATE_INT32(fw_state, MegasasState),
2279 VMSTATE_INT32(intr_mask, MegasasState),
2280 VMSTATE_INT32(doorbell, MegasasState),
2281 VMSTATE_UINT64(reply_queue_pa, MegasasState),
2282 VMSTATE_UINT64(consumer_pa, MegasasState),
2283 VMSTATE_UINT64(producer_pa, MegasasState),
2284 VMSTATE_END_OF_LIST()
2285 }
2286 };
2287
2288 static void megasas_scsi_uninit(PCIDevice *d)
2289 {
2290 MegasasState *s = MEGASAS(d);
2291
2292 if (megasas_use_msix(s)) {
2293 msix_uninit(d, &s->mmio_io, &s->mmio_io);
2294 }
2295 msi_uninit(d);
2296 }
2297
2298 static const struct SCSIBusInfo megasas_scsi_info = {
2299 .tcq = true,
2300 .max_target = MFI_MAX_LD,
2301 .max_lun = 255,
2302
2303 .transfer_data = megasas_xfer_complete,
2304 .get_sg_list = megasas_get_sg_list,
2305 .complete = megasas_command_complete,
2306 .cancel = megasas_command_cancelled,
2307 };
2308
2309 static void megasas_scsi_realize(PCIDevice *dev, Error **errp)
2310 {
2311 MegasasState *s = MEGASAS(dev);
2312 MegasasBaseClass *b = MEGASAS_DEVICE_GET_CLASS(s);
2313 uint8_t *pci_conf;
2314 int i, bar_type;
2315 Error *err = NULL;
2316 int ret;
2317
2318 pci_conf = dev->config;
2319
2320 /* PCI latency timer = 0 */
2321 pci_conf[PCI_LATENCY_TIMER] = 0;
2322 /* Interrupt pin 1 */
2323 pci_conf[PCI_INTERRUPT_PIN] = 0x01;
2324
2325 if (s->msi != ON_OFF_AUTO_OFF) {
2326 ret = msi_init(dev, 0x50, 1, true, false, &err);
2327 /* Any error other than -ENOTSUP(board's MSI support is broken)
2328 * is a programming error */
2329 assert(!ret || ret == -ENOTSUP);
2330 if (ret && s->msi == ON_OFF_AUTO_ON) {
2331 /* Can't satisfy user's explicit msi=on request, fail */
2332 error_append_hint(&err, "You have to use msi=auto (default) or "
2333 "msi=off with this machine type.\n");
2334 error_propagate(errp, err);
2335 return;
2336 } else if (ret) {
2337 /* With msi=auto, we fall back to MSI off silently */
2338 s->msi = ON_OFF_AUTO_OFF;
2339 error_free(err);
2340 }
2341 }
2342
2343 memory_region_init_io(&s->mmio_io, OBJECT(s), &megasas_mmio_ops, s,
2344 "megasas-mmio", 0x4000);
2345 memory_region_init_io(&s->port_io, OBJECT(s), &megasas_port_ops, s,
2346 "megasas-io", 256);
2347 memory_region_init_io(&s->queue_io, OBJECT(s), &megasas_queue_ops, s,
2348 "megasas-queue", 0x40000);
2349
2350 if (megasas_use_msix(s) &&
2351 msix_init(dev, 15, &s->mmio_io, b->mmio_bar, 0x2000,
2352 &s->mmio_io, b->mmio_bar, 0x3800, 0x68, NULL)) {
2353 /* TODO: check msix_init's error, and should fail on msix=on */
2354 s->msix = ON_OFF_AUTO_OFF;
2355 }
2356
2357 if (pci_is_express(dev)) {
2358 pcie_endpoint_cap_init(dev, 0xa0);
2359 }
2360
2361 bar_type = PCI_BASE_ADDRESS_SPACE_MEMORY | PCI_BASE_ADDRESS_MEM_TYPE_64;
2362 pci_register_bar(dev, b->ioport_bar,
2363 PCI_BASE_ADDRESS_SPACE_IO, &s->port_io);
2364 pci_register_bar(dev, b->mmio_bar, bar_type, &s->mmio_io);
2365 pci_register_bar(dev, 3, bar_type, &s->queue_io);
2366
2367 if (megasas_use_msix(s)) {
2368 msix_vector_use(dev, 0);
2369 }
2370
2371 s->fw_state = MFI_FWSTATE_READY;
2372 if (!s->sas_addr) {
2373 s->sas_addr = ((NAA_LOCALLY_ASSIGNED_ID << 24) |
2374 IEEE_COMPANY_LOCALLY_ASSIGNED) << 36;
2375 s->sas_addr |= (pci_dev_bus_num(dev) << 16);
2376 s->sas_addr |= (PCI_SLOT(dev->devfn) << 8);
2377 s->sas_addr |= PCI_FUNC(dev->devfn);
2378 }
2379 if (!s->hba_serial) {
2380 s->hba_serial = g_strdup(MEGASAS_HBA_SERIAL);
2381 }
2382 if (s->fw_sge >= MEGASAS_MAX_SGE - MFI_PASS_FRAME_SIZE) {
2383 s->fw_sge = MEGASAS_MAX_SGE - MFI_PASS_FRAME_SIZE;
2384 } else if (s->fw_sge >= 128 - MFI_PASS_FRAME_SIZE) {
2385 s->fw_sge = 128 - MFI_PASS_FRAME_SIZE;
2386 } else {
2387 s->fw_sge = 64 - MFI_PASS_FRAME_SIZE;
2388 }
2389 if (s->fw_cmds > MEGASAS_MAX_FRAMES) {
2390 s->fw_cmds = MEGASAS_MAX_FRAMES;
2391 }
2392 trace_megasas_init(s->fw_sge, s->fw_cmds,
2393 megasas_is_jbod(s) ? "jbod" : "raid");
2394
2395 if (megasas_is_jbod(s)) {
2396 s->fw_luns = MFI_MAX_SYS_PDS;
2397 } else {
2398 s->fw_luns = MFI_MAX_LD;
2399 }
2400 s->producer_pa = 0;
2401 s->consumer_pa = 0;
2402 for (i = 0; i < s->fw_cmds; i++) {
2403 s->frames[i].index = i;
2404 s->frames[i].context = -1;
2405 s->frames[i].pa = 0;
2406 s->frames[i].state = s;
2407 }
2408
2409 scsi_bus_new(&s->bus, sizeof(s->bus), DEVICE(dev),
2410 &megasas_scsi_info, NULL);
2411 }
2412
2413 static Property megasas_properties_gen1[] = {
2414 DEFINE_PROP_UINT32("max_sge", MegasasState, fw_sge,
2415 MEGASAS_DEFAULT_SGE),
2416 DEFINE_PROP_UINT32("max_cmds", MegasasState, fw_cmds,
2417 MEGASAS_DEFAULT_FRAMES),
2418 DEFINE_PROP_STRING("hba_serial", MegasasState, hba_serial),
2419 DEFINE_PROP_UINT64("sas_address", MegasasState, sas_addr, 0),
2420 DEFINE_PROP_ON_OFF_AUTO("msi", MegasasState, msi, ON_OFF_AUTO_AUTO),
2421 DEFINE_PROP_ON_OFF_AUTO("msix", MegasasState, msix, ON_OFF_AUTO_AUTO),
2422 DEFINE_PROP_BIT("use_jbod", MegasasState, flags,
2423 MEGASAS_FLAG_USE_JBOD, false),
2424 DEFINE_PROP_END_OF_LIST(),
2425 };
2426
2427 static Property megasas_properties_gen2[] = {
2428 DEFINE_PROP_UINT32("max_sge", MegasasState, fw_sge,
2429 MEGASAS_DEFAULT_SGE),
2430 DEFINE_PROP_UINT32("max_cmds", MegasasState, fw_cmds,
2431 MEGASAS_GEN2_DEFAULT_FRAMES),
2432 DEFINE_PROP_STRING("hba_serial", MegasasState, hba_serial),
2433 DEFINE_PROP_UINT64("sas_address", MegasasState, sas_addr, 0),
2434 DEFINE_PROP_ON_OFF_AUTO("msi", MegasasState, msi, ON_OFF_AUTO_AUTO),
2435 DEFINE_PROP_ON_OFF_AUTO("msix", MegasasState, msix, ON_OFF_AUTO_AUTO),
2436 DEFINE_PROP_BIT("use_jbod", MegasasState, flags,
2437 MEGASAS_FLAG_USE_JBOD, false),
2438 DEFINE_PROP_END_OF_LIST(),
2439 };
2440
2441 typedef struct MegasasInfo {
2442 const char *name;
2443 const char *desc;
2444 const char *product_name;
2445 const char *product_version;
2446 uint16_t device_id;
2447 uint16_t subsystem_id;
2448 int ioport_bar;
2449 int mmio_bar;
2450 int osts;
2451 const VMStateDescription *vmsd;
2452 Property *props;
2453 InterfaceInfo *interfaces;
2454 } MegasasInfo;
2455
2456 static struct MegasasInfo megasas_devices[] = {
2457 {
2458 .name = TYPE_MEGASAS_GEN1,
2459 .desc = "LSI MegaRAID SAS 1078",
2460 .product_name = "LSI MegaRAID SAS 8708EM2",
2461 .product_version = MEGASAS_VERSION_GEN1,
2462 .device_id = PCI_DEVICE_ID_LSI_SAS1078,
2463 .subsystem_id = 0x1013,
2464 .ioport_bar = 2,
2465 .mmio_bar = 0,
2466 .osts = MFI_1078_RM | 1,
2467 .vmsd = &vmstate_megasas_gen1,
2468 .props = megasas_properties_gen1,
2469 .interfaces = (InterfaceInfo[]) {
2470 { INTERFACE_CONVENTIONAL_PCI_DEVICE },
2471 { },
2472 },
2473 },{
2474 .name = TYPE_MEGASAS_GEN2,
2475 .desc = "LSI MegaRAID SAS 2108",
2476 .product_name = "LSI MegaRAID SAS 9260-8i",
2477 .product_version = MEGASAS_VERSION_GEN2,
2478 .device_id = PCI_DEVICE_ID_LSI_SAS0079,
2479 .subsystem_id = 0x9261,
2480 .ioport_bar = 0,
2481 .mmio_bar = 1,
2482 .osts = MFI_GEN2_RM,
2483 .vmsd = &vmstate_megasas_gen2,
2484 .props = megasas_properties_gen2,
2485 .interfaces = (InterfaceInfo[]) {
2486 { INTERFACE_PCIE_DEVICE },
2487 { }
2488 },
2489 }
2490 };
2491
2492 static void megasas_class_init(ObjectClass *oc, void *data)
2493 {
2494 DeviceClass *dc = DEVICE_CLASS(oc);
2495 PCIDeviceClass *pc = PCI_DEVICE_CLASS(oc);
2496 MegasasBaseClass *e = MEGASAS_DEVICE_CLASS(oc);
2497 const MegasasInfo *info = data;
2498
2499 pc->realize = megasas_scsi_realize;
2500 pc->exit = megasas_scsi_uninit;
2501 pc->vendor_id = PCI_VENDOR_ID_LSI_LOGIC;
2502 pc->device_id = info->device_id;
2503 pc->subsystem_vendor_id = PCI_VENDOR_ID_LSI_LOGIC;
2504 pc->subsystem_id = info->subsystem_id;
2505 pc->class_id = PCI_CLASS_STORAGE_RAID;
2506 e->mmio_bar = info->mmio_bar;
2507 e->ioport_bar = info->ioport_bar;
2508 e->osts = info->osts;
2509 e->product_name = info->product_name;
2510 e->product_version = info->product_version;
2511 dc->props = info->props;
2512 dc->reset = megasas_scsi_reset;
2513 dc->vmsd = info->vmsd;
2514 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
2515 dc->desc = info->desc;
2516 }
2517
2518 static const TypeInfo megasas_info = {
2519 .name = TYPE_MEGASAS_BASE,
2520 .parent = TYPE_PCI_DEVICE,
2521 .instance_size = sizeof(MegasasState),
2522 .class_size = sizeof(MegasasBaseClass),
2523 .abstract = true,
2524 };
2525
2526 static void megasas_register_types(void)
2527 {
2528 int i;
2529
2530 type_register_static(&megasas_info);
2531 for (i = 0; i < ARRAY_SIZE(megasas_devices); i++) {
2532 const MegasasInfo *info = &megasas_devices[i];
2533 TypeInfo type_info = {};
2534
2535 type_info.name = info->name;
2536 type_info.parent = TYPE_MEGASAS_BASE;
2537 type_info.class_data = (void *)info;
2538 type_info.class_init = megasas_class_init;
2539 type_info.interfaces = info->interfaces;
2540
2541 type_register(&type_info);
2542 }
2543 }
2544
2545 type_init(megasas_register_types)
QEmu