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qapi: Improve specificity of type/member descriptions
[qemu/armbru.git] / hw / scsi / megasas.c
blob9cbbb16121d7a1e686c2602dca1f95d71d09cd7d
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 2.1 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/pci/pci.h"
23 #include "hw/qdev-properties.h"
24 #include "sysemu/dma.h"
25 #include "sysemu/block-backend.h"
26 #include "sysemu/rtc.h"
27 #include "hw/pci/msi.h"
28 #include "hw/pci/msix.h"
29 #include "qemu/iov.h"
30 #include "qemu/module.h"
31 #include "qemu/hw-version.h"
32 #include "hw/scsi/scsi.h"
33 #include "scsi/constants.h"
34 #include "trace.h"
35 #include "qapi/error.h"
36 #include "mfi.h"
37 #include "migration/vmstate.h"
38 #include "qom/object.h"
39
40 #define MEGASAS_VERSION_GEN1 "1.70"
41 #define MEGASAS_VERSION_GEN2 "1.80"
42 #define MEGASAS_MAX_FRAMES 2048 /* Firmware limit at 65535 */
43 #define MEGASAS_DEFAULT_FRAMES 1000 /* Windows requires this */
44 #define MEGASAS_GEN2_DEFAULT_FRAMES 1008 /* Windows requires this */
45 #define MEGASAS_MAX_SGE 128 /* Firmware limit */
46 #define MEGASAS_DEFAULT_SGE 80
47 #define MEGASAS_MAX_SECTORS 0xFFFF /* No real limit */
48 #define MEGASAS_MAX_ARRAYS 128
49
50 #define MEGASAS_HBA_SERIAL "QEMU123456"
51 #define NAA_LOCALLY_ASSIGNED_ID 0x3ULL
52 #define IEEE_COMPANY_LOCALLY_ASSIGNED 0x525400
53
54 #define MEGASAS_FLAG_USE_JBOD 0
55 #define MEGASAS_MASK_USE_JBOD (1 << MEGASAS_FLAG_USE_JBOD)
56 #define MEGASAS_FLAG_USE_QUEUE64 1
57 #define MEGASAS_MASK_USE_QUEUE64 (1 << MEGASAS_FLAG_USE_QUEUE64)
58
59 typedef struct MegasasCmd {
60 uint32_t index;
61 uint16_t flags;
62 uint16_t count;
63 uint64_t context;
64
65 hwaddr pa;
66 hwaddr pa_size;
67 uint32_t dcmd_opcode;
68 union mfi_frame *frame;
69 SCSIRequest *req;
70 QEMUSGList qsg;
71 void *iov_buf;
72 size_t iov_size;
73 size_t iov_offset;
74 struct MegasasState *state;
75 } MegasasCmd;
76
77 struct MegasasState {
78 /*< private >*/
79 PCIDevice parent_obj;
80 /*< public >*/
81
82 MemoryRegion mmio_io;
83 MemoryRegion port_io;
84 MemoryRegion queue_io;
85 uint32_t frame_hi;
86
87 uint32_t fw_state;
88 uint32_t fw_sge;
89 uint32_t fw_cmds;
90 uint32_t flags;
91 uint32_t fw_luns;
92 uint32_t intr_mask;
93 uint32_t doorbell;
94 uint32_t busy;
95 uint32_t diag;
96 uint32_t adp_reset;
97 OnOffAuto msi;
98 OnOffAuto msix;
99
100 MegasasCmd *event_cmd;
101 uint16_t event_locale;
102 int event_class;
103 uint32_t event_count;
104 uint32_t shutdown_event;
105 uint32_t boot_event;
106
107 uint64_t sas_addr;
108 char *hba_serial;
109
110 uint64_t reply_queue_pa;
111 void *reply_queue;
112 uint16_t reply_queue_len;
113 uint32_t reply_queue_head;
114 uint32_t reply_queue_tail;
115 uint64_t consumer_pa;
116 uint64_t producer_pa;
117
118 MegasasCmd frames[MEGASAS_MAX_FRAMES];
119 DECLARE_BITMAP(frame_map, MEGASAS_MAX_FRAMES);
120 SCSIBus bus;
121 };
122 typedef struct MegasasState MegasasState;
123
124 struct MegasasBaseClass {
125 PCIDeviceClass parent_class;
126 const char *product_name;
127 const char *product_version;
128 int mmio_bar;
129 int ioport_bar;
130 int osts;
131 };
132 typedef struct MegasasBaseClass MegasasBaseClass;
133
134 #define TYPE_MEGASAS_BASE "megasas-base"
135 #define TYPE_MEGASAS_GEN1 "megasas"
136 #define TYPE_MEGASAS_GEN2 "megasas-gen2"
137
138 DECLARE_OBJ_CHECKERS(MegasasState, MegasasBaseClass,
139 MEGASAS, TYPE_MEGASAS_BASE)
140
141
142 #define MEGASAS_INTR_DISABLED_MASK 0xFFFFFFFF
143
144 static bool megasas_intr_enabled(MegasasState *s)
145 {
146 if ((s->intr_mask & MEGASAS_INTR_DISABLED_MASK) !=
147 MEGASAS_INTR_DISABLED_MASK) {
148 return true;
149 }
150 return false;
151 }
152
153 static bool megasas_use_queue64(MegasasState *s)
154 {
155 return s->flags & MEGASAS_MASK_USE_QUEUE64;
156 }
157
158 static bool megasas_use_msix(MegasasState *s)
159 {
160 return s->msix != ON_OFF_AUTO_OFF;
161 }
162
163 static bool megasas_is_jbod(MegasasState *s)
164 {
165 return s->flags & MEGASAS_MASK_USE_JBOD;
166 }
167
168 static void megasas_frame_set_cmd_status(MegasasState *s,
169 unsigned long frame, uint8_t v)
170 {
171 PCIDevice *pci = &s->parent_obj;
172 stb_pci_dma(pci, frame + offsetof(struct mfi_frame_header, cmd_status),
173 v, MEMTXATTRS_UNSPECIFIED);
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),
181 v, MEMTXATTRS_UNSPECIFIED);
182 }
183
184 static inline const char *mfi_frame_desc(unsigned int cmd)
185 {
186 static const char *mfi_frame_descs[] = {
187 "MFI init", "LD Read", "LD Write", "LD SCSI", "PD SCSI",
188 "MFI Doorbell", "MFI Abort", "MFI SMP", "MFI Stop"
189 };
190
191 if (cmd < ARRAY_SIZE(mfi_frame_descs)) {
192 return mfi_frame_descs[cmd];
193 }
194
195 return "Unknown";
196 }
197
198 /*
199 * Context is considered opaque, but the HBA firmware is running
200 * in little endian mode. So convert it to little endian, too.
201 */
202 static uint64_t megasas_frame_get_context(MegasasState *s,
203 unsigned long frame)
204 {
205 PCIDevice *pci = &s->parent_obj;
206 uint64_t val;
207
208 ldq_le_pci_dma(pci, frame + offsetof(struct mfi_frame_header, context),
209 &val, MEMTXATTRS_UNSPECIFIED);
210
211 return val;
212 }
213
214 static bool megasas_frame_is_ieee_sgl(MegasasCmd *cmd)
215 {
216 return cmd->flags & MFI_FRAME_IEEE_SGL;
217 }
218
219 static bool megasas_frame_is_sgl64(MegasasCmd *cmd)
220 {
221 return cmd->flags & MFI_FRAME_SGL64;
222 }
223
224 static bool megasas_frame_is_sense64(MegasasCmd *cmd)
225 {
226 return cmd->flags & MFI_FRAME_SENSE64;
227 }
228
229 static uint64_t megasas_sgl_get_addr(MegasasCmd *cmd,
230 union mfi_sgl *sgl)
231 {
232 uint64_t addr;
233
234 if (megasas_frame_is_ieee_sgl(cmd)) {
235 addr = le64_to_cpu(sgl->sg_skinny->addr);
236 } else if (megasas_frame_is_sgl64(cmd)) {
237 addr = le64_to_cpu(sgl->sg64->addr);
238 } else {
239 addr = le32_to_cpu(sgl->sg32->addr);
240 }
241 return addr;
242 }
243
244 static uint32_t megasas_sgl_get_len(MegasasCmd *cmd,
245 union mfi_sgl *sgl)
246 {
247 uint32_t len;
248
249 if (megasas_frame_is_ieee_sgl(cmd)) {
250 len = le32_to_cpu(sgl->sg_skinny->len);
251 } else if (megasas_frame_is_sgl64(cmd)) {
252 len = le32_to_cpu(sgl->sg64->len);
253 } else {
254 len = le32_to_cpu(sgl->sg32->len);
255 }
256 return len;
257 }
258
259 static union mfi_sgl *megasas_sgl_next(MegasasCmd *cmd,
260 union mfi_sgl *sgl)
261 {
262 uint8_t *next = (uint8_t *)sgl;
263
264 if (megasas_frame_is_ieee_sgl(cmd)) {
265 next += sizeof(struct mfi_sg_skinny);
266 } else if (megasas_frame_is_sgl64(cmd)) {
267 next += sizeof(struct mfi_sg64);
268 } else {
269 next += sizeof(struct mfi_sg32);
270 }
271
272 if (next >= (uint8_t *)cmd->frame + cmd->pa_size) {
273 return NULL;
274 }
275 return (union mfi_sgl *)next;
276 }
277
278 static void megasas_soft_reset(MegasasState *s);
279
280 static int megasas_map_sgl(MegasasState *s, MegasasCmd *cmd, union mfi_sgl *sgl)
281 {
282 int i;
283 int iov_count = 0;
284 size_t iov_size = 0;
285
286 cmd->flags = le16_to_cpu(cmd->frame->header.flags);
287 iov_count = cmd->frame->header.sge_count;
288 if (!iov_count || iov_count > MEGASAS_MAX_SGE) {
289 trace_megasas_iovec_sgl_overflow(cmd->index, iov_count,
290 MEGASAS_MAX_SGE);
291 return -1;
292 }
293 pci_dma_sglist_init(&cmd->qsg, PCI_DEVICE(s), iov_count);
294 for (i = 0; i < iov_count; i++) {
295 dma_addr_t iov_pa, iov_size_p;
296
297 if (!sgl) {
298 trace_megasas_iovec_sgl_underflow(cmd->index, i);
299 goto unmap;
300 }
301 iov_pa = megasas_sgl_get_addr(cmd, sgl);
302 iov_size_p = megasas_sgl_get_len(cmd, sgl);
303 if (!iov_pa || !iov_size_p) {
304 trace_megasas_iovec_sgl_invalid(cmd->index, i,
305 iov_pa, iov_size_p);
306 goto unmap;
307 }
308 qemu_sglist_add(&cmd->qsg, iov_pa, iov_size_p);
309 sgl = megasas_sgl_next(cmd, sgl);
310 iov_size += (size_t)iov_size_p;
311 }
312 if (cmd->iov_size > iov_size) {
313 trace_megasas_iovec_overflow(cmd->index, iov_size, cmd->iov_size);
314 goto unmap;
315 } else if (cmd->iov_size < iov_size) {
316 trace_megasas_iovec_underflow(cmd->index, iov_size, cmd->iov_size);
317 }
318 cmd->iov_offset = 0;
319 return 0;
320 unmap:
321 qemu_sglist_destroy(&cmd->qsg);
322 return -1;
323 }
324
325 /*
326 * passthrough sense and io sense are at the same offset
327 */
328 static int megasas_build_sense(MegasasCmd *cmd, uint8_t *sense_ptr,
329 uint8_t sense_len)
330 {
331 PCIDevice *pcid = PCI_DEVICE(cmd->state);
332 uint32_t pa_hi = 0, pa_lo;
333 hwaddr pa;
334 int frame_sense_len;
335
336 frame_sense_len = cmd->frame->header.sense_len;
337 if (sense_len > frame_sense_len) {
338 sense_len = frame_sense_len;
339 }
340 if (sense_len) {
341 pa_lo = le32_to_cpu(cmd->frame->pass.sense_addr_lo);
342 if (megasas_frame_is_sense64(cmd)) {
343 pa_hi = le32_to_cpu(cmd->frame->pass.sense_addr_hi);
344 }
345 pa = ((uint64_t) pa_hi << 32) | pa_lo;
346 pci_dma_write(pcid, pa, sense_ptr, sense_len);
347 cmd->frame->header.sense_len = sense_len;
348 }
349 return sense_len;
350 }
351
352 static void megasas_write_sense(MegasasCmd *cmd, SCSISense sense)
353 {
354 uint8_t sense_buf[SCSI_SENSE_BUF_SIZE];
355 uint8_t sense_len = 18;
356
357 memset(sense_buf, 0, sense_len);
358 sense_buf[0] = 0xf0;
359 sense_buf[2] = sense.key;
360 sense_buf[7] = 10;
361 sense_buf[12] = sense.asc;
362 sense_buf[13] = sense.ascq;
363 megasas_build_sense(cmd, sense_buf, sense_len);
364 }
365
366 static void megasas_copy_sense(MegasasCmd *cmd)
367 {
368 uint8_t sense_buf[SCSI_SENSE_BUF_SIZE];
369 uint8_t sense_len;
370
371 sense_len = scsi_req_get_sense(cmd->req, sense_buf,
372 SCSI_SENSE_BUF_SIZE);
373 megasas_build_sense(cmd, sense_buf, sense_len);
374 }
375
376 /*
377 * Format an INQUIRY CDB
378 */
379 static int megasas_setup_inquiry(uint8_t *cdb, int pg, int len)
380 {
381 memset(cdb, 0, 6);
382 cdb[0] = INQUIRY;
383 if (pg > 0) {
384 cdb[1] = 0x1;
385 cdb[2] = pg;
386 }
387 stw_be_p(&cdb[3], len);
388 return len;
389 }
390
391 /*
392 * Encode lba and len into a READ_16/WRITE_16 CDB
393 */
394 static void megasas_encode_lba(uint8_t *cdb, uint64_t lba,
395 uint32_t len, bool is_write)
396 {
397 memset(cdb, 0x0, 16);
398 if (is_write) {
399 cdb[0] = WRITE_16;
400 } else {
401 cdb[0] = READ_16;
402 }
403 stq_be_p(&cdb[2], lba);
404 stl_be_p(&cdb[2 + 8], len);
405 }
406
407 /*
408 * Utility functions
409 */
410 static uint64_t megasas_fw_time(void)
411 {
412 struct tm curtime;
413
414 qemu_get_timedate(&curtime, 0);
415 return ((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
423 /*
424 * Default disk sata address
425 * 0x1221 is the magic number as
426 * present in real hardware,
427 * so use it here, too.
428 */
429 static uint64_t megasas_get_sata_addr(uint16_t id)
430 {
431 uint64_t addr = (0x1221ULL << 48);
432 return addr | ((uint64_t)id << 24);
433 }
434
435 /*
436 * Frame handling
437 */
438 static int megasas_next_index(MegasasState *s, int index, int limit)
439 {
440 index++;
441 if (index == limit) {
442 index = 0;
443 }
444 return index;
445 }
446
447 static MegasasCmd *megasas_lookup_frame(MegasasState *s,
448 hwaddr frame)
449 {
450 MegasasCmd *cmd = NULL;
451 int num = 0, index;
452
453 index = s->reply_queue_head;
454
455 while (num < s->fw_cmds && index < MEGASAS_MAX_FRAMES) {
456 if (s->frames[index].pa && s->frames[index].pa == frame) {
457 cmd = &s->frames[index];
458 break;
459 }
460 index = megasas_next_index(s, index, s->fw_cmds);
461 num++;
462 }
463
464 return cmd;
465 }
466
467 static void megasas_unmap_frame(MegasasState *s, MegasasCmd *cmd)
468 {
469 PCIDevice *p = PCI_DEVICE(s);
470
471 if (cmd->pa_size) {
472 pci_dma_unmap(p, cmd->frame, cmd->pa_size, 0, 0);
473 }
474 cmd->frame = NULL;
475 cmd->pa = 0;
476 cmd->pa_size = 0;
477 qemu_sglist_destroy(&cmd->qsg);
478 clear_bit(cmd->index, s->frame_map);
479 }
480
481 /*
482 * This absolutely needs to be locked if
483 * qemu ever goes multithreaded.
484 */
485 static MegasasCmd *megasas_enqueue_frame(MegasasState *s,
486 hwaddr frame, uint64_t context, int count)
487 {
488 PCIDevice *pcid = PCI_DEVICE(s);
489 MegasasCmd *cmd = NULL;
490 int frame_size = MEGASAS_MAX_SGE * sizeof(union mfi_sgl);
491 hwaddr frame_size_p = frame_size;
492 unsigned long index;
493
494 index = 0;
495 while (index < s->fw_cmds) {
496 index = find_next_zero_bit(s->frame_map, s->fw_cmds, index);
497 if (!s->frames[index].pa)
498 break;
499 /* Busy frame found */
500 trace_megasas_qf_mapped(index);
501 }
502 if (index >= s->fw_cmds) {
503 /* All frames busy */
504 trace_megasas_qf_busy(frame);
505 return NULL;
506 }
507 cmd = &s->frames[index];
508 set_bit(index, s->frame_map);
509 trace_megasas_qf_new(index, frame);
510
511 cmd->pa = frame;
512 /* Map all possible frames */
513 cmd->frame = pci_dma_map(pcid, frame, &frame_size_p, 0);
514 if (!cmd->frame || frame_size_p != frame_size) {
515 trace_megasas_qf_map_failed(cmd->index, (unsigned long)frame);
516 if (cmd->frame) {
517 megasas_unmap_frame(s, cmd);
518 }
519 s->event_count++;
520 return NULL;
521 }
522 cmd->pa_size = frame_size_p;
523 cmd->context = context;
524 if (!megasas_use_queue64(s)) {
525 cmd->context &= (uint64_t)0xFFFFFFFF;
526 }
527 cmd->count = count;
528 cmd->dcmd_opcode = -1;
529 s->busy++;
530
531 if (s->consumer_pa) {
532 ldl_le_pci_dma(pcid, s->consumer_pa, &s->reply_queue_tail,
533 MEMTXATTRS_UNSPECIFIED);
534 }
535 trace_megasas_qf_enqueue(cmd->index, cmd->count, cmd->context,
536 s->reply_queue_head, s->reply_queue_tail, s->busy);
537
538 return cmd;
539 }
540
541 static void megasas_complete_frame(MegasasState *s, uint64_t context)
542 {
543 const MemTxAttrs attrs = MEMTXATTRS_UNSPECIFIED;
544 PCIDevice *pci_dev = PCI_DEVICE(s);
545 int tail, queue_offset;
546
547 /* Decrement busy count */
548 s->busy--;
549 if (s->reply_queue_pa) {
550 /*
551 * Put command on the reply queue.
552 * Context is opaque, but emulation is running in
553 * little endian. So convert it.
554 */
555 if (megasas_use_queue64(s)) {
556 queue_offset = s->reply_queue_head * sizeof(uint64_t);
557 stq_le_pci_dma(pci_dev, s->reply_queue_pa + queue_offset,
558 context, attrs);
559 } else {
560 queue_offset = s->reply_queue_head * sizeof(uint32_t);
561 stl_le_pci_dma(pci_dev, s->reply_queue_pa + queue_offset,
562 context, attrs);
563 }
564 ldl_le_pci_dma(pci_dev, s->consumer_pa, &s->reply_queue_tail, attrs);
565 trace_megasas_qf_complete(context, s->reply_queue_head,
566 s->reply_queue_tail, s->busy);
567 }
568
569 if (megasas_intr_enabled(s)) {
570 /* Update reply queue pointer */
571 ldl_le_pci_dma(pci_dev, s->consumer_pa, &s->reply_queue_tail, attrs);
572 tail = s->reply_queue_head;
573 s->reply_queue_head = megasas_next_index(s, tail, s->fw_cmds);
574 trace_megasas_qf_update(s->reply_queue_head, s->reply_queue_tail,
575 s->busy);
576 stl_le_pci_dma(pci_dev, s->producer_pa, s->reply_queue_head, attrs);
577 /* Notify HBA */
578 if (msix_enabled(pci_dev)) {
579 trace_megasas_msix_raise(0);
580 msix_notify(pci_dev, 0);
581 } else if (msi_enabled(pci_dev)) {
582 trace_megasas_msi_raise(0);
583 msi_notify(pci_dev, 0);
584 } else {
585 s->doorbell++;
586 if (s->doorbell == 1) {
587 trace_megasas_irq_raise();
588 pci_irq_assert(pci_dev);
589 }
590 }
591 } else {
592 trace_megasas_qf_complete_noirq(context);
593 }
594 }
595
596 static void megasas_complete_command(MegasasCmd *cmd)
597 {
598 cmd->iov_size = 0;
599 cmd->iov_offset = 0;
600
601 cmd->req->hba_private = NULL;
602 scsi_req_unref(cmd->req);
603 cmd->req = NULL;
604
605 megasas_unmap_frame(cmd->state, cmd);
606 megasas_complete_frame(cmd->state, cmd->context);
607 }
608
609 static void megasas_reset_frames(MegasasState *s)
610 {
611 int i;
612 MegasasCmd *cmd;
613
614 for (i = 0; i < s->fw_cmds; i++) {
615 cmd = &s->frames[i];
616 if (cmd->pa) {
617 megasas_unmap_frame(s, cmd);
618 }
619 }
620 bitmap_zero(s->frame_map, MEGASAS_MAX_FRAMES);
621 }
622
623 static void megasas_abort_command(MegasasCmd *cmd)
624 {
625 /* Never abort internal commands. */
626 if (cmd->dcmd_opcode != -1) {
627 return;
628 }
629 if (cmd->req != NULL) {
630 scsi_req_cancel(cmd->req);
631 }
632 }
633
634 static int megasas_init_firmware(MegasasState *s, MegasasCmd *cmd)
635 {
636 const MemTxAttrs attrs = MEMTXATTRS_UNSPECIFIED;
637 PCIDevice *pcid = PCI_DEVICE(s);
638 uint32_t pa_hi, pa_lo;
639 hwaddr iq_pa, initq_size = sizeof(struct mfi_init_qinfo);
640 struct mfi_init_qinfo *initq = NULL;
641 uint32_t flags;
642 int ret = MFI_STAT_OK;
643
644 if (s->reply_queue_pa) {
645 trace_megasas_initq_mapped(s->reply_queue_pa);
646 goto out;
647 }
648 pa_lo = le32_to_cpu(cmd->frame->init.qinfo_new_addr_lo);
649 pa_hi = le32_to_cpu(cmd->frame->init.qinfo_new_addr_hi);
650 iq_pa = (((uint64_t) pa_hi << 32) | pa_lo);
651 trace_megasas_init_firmware((uint64_t)iq_pa);
652 initq = pci_dma_map(pcid, iq_pa, &initq_size, 0);
653 if (!initq || initq_size != sizeof(*initq)) {
654 trace_megasas_initq_map_failed(cmd->index);
655 s->event_count++;
656 ret = MFI_STAT_MEMORY_NOT_AVAILABLE;
657 goto out;
658 }
659 s->reply_queue_len = le32_to_cpu(initq->rq_entries) & 0xFFFF;
660 if (s->reply_queue_len > s->fw_cmds) {
661 trace_megasas_initq_mismatch(s->reply_queue_len, s->fw_cmds);
662 s->event_count++;
663 ret = MFI_STAT_INVALID_PARAMETER;
664 goto out;
665 }
666 pa_lo = le32_to_cpu(initq->rq_addr_lo);
667 pa_hi = le32_to_cpu(initq->rq_addr_hi);
668 s->reply_queue_pa = ((uint64_t) pa_hi << 32) | pa_lo;
669 pa_lo = le32_to_cpu(initq->ci_addr_lo);
670 pa_hi = le32_to_cpu(initq->ci_addr_hi);
671 s->consumer_pa = ((uint64_t) pa_hi << 32) | pa_lo;
672 pa_lo = le32_to_cpu(initq->pi_addr_lo);
673 pa_hi = le32_to_cpu(initq->pi_addr_hi);
674 s->producer_pa = ((uint64_t) pa_hi << 32) | pa_lo;
675 ldl_le_pci_dma(pcid, s->producer_pa, &s->reply_queue_head, attrs);
676 s->reply_queue_head %= MEGASAS_MAX_FRAMES;
677 ldl_le_pci_dma(pcid, s->consumer_pa, &s->reply_queue_tail, attrs);
678 s->reply_queue_tail %= MEGASAS_MAX_FRAMES;
679 flags = le32_to_cpu(initq->flags);
680 if (flags & MFI_QUEUE_FLAG_CONTEXT64) {
681 s->flags |= MEGASAS_MASK_USE_QUEUE64;
682 }
683 trace_megasas_init_queue((unsigned long)s->reply_queue_pa,
684 s->reply_queue_len, s->reply_queue_head,
685 s->reply_queue_tail, flags);
686 megasas_reset_frames(s);
687 s->fw_state = MFI_FWSTATE_OPERATIONAL;
688 out:
689 if (initq) {
690 pci_dma_unmap(pcid, initq, initq_size, 0, 0);
691 }
692 return ret;
693 }
694
695 static int megasas_map_dcmd(MegasasState *s, MegasasCmd *cmd)
696 {
697 dma_addr_t iov_pa, iov_size;
698 int iov_count;
699
700 cmd->flags = le16_to_cpu(cmd->frame->header.flags);
701 iov_count = cmd->frame->header.sge_count;
702 if (!iov_count) {
703 trace_megasas_dcmd_zero_sge(cmd->index);
704 cmd->iov_size = 0;
705 return 0;
706 } else if (iov_count > 1) {
707 trace_megasas_dcmd_invalid_sge(cmd->index, iov_count);
708 cmd->iov_size = 0;
709 return -EINVAL;
710 }
711 iov_pa = megasas_sgl_get_addr(cmd, &cmd->frame->dcmd.sgl);
712 iov_size = megasas_sgl_get_len(cmd, &cmd->frame->dcmd.sgl);
713 pci_dma_sglist_init(&cmd->qsg, PCI_DEVICE(s), 1);
714 qemu_sglist_add(&cmd->qsg, iov_pa, iov_size);
715 cmd->iov_size = iov_size;
716 return 0;
717 }
718
719 static void megasas_finish_dcmd(MegasasCmd *cmd, uint32_t iov_size)
720 {
721 trace_megasas_finish_dcmd(cmd->index, iov_size);
722
723 if (iov_size > cmd->iov_size) {
724 if (megasas_frame_is_ieee_sgl(cmd)) {
725 cmd->frame->dcmd.sgl.sg_skinny->len = cpu_to_le32(iov_size);
726 } else if (megasas_frame_is_sgl64(cmd)) {
727 cmd->frame->dcmd.sgl.sg64->len = cpu_to_le32(iov_size);
728 } else {
729 cmd->frame->dcmd.sgl.sg32->len = cpu_to_le32(iov_size);
730 }
731 }
732 }
733
734 static int megasas_ctrl_get_info(MegasasState *s, MegasasCmd *cmd)
735 {
736 PCIDevice *pci_dev = PCI_DEVICE(s);
737 PCIDeviceClass *pci_class = PCI_DEVICE_GET_CLASS(pci_dev);
738 MegasasBaseClass *base_class = MEGASAS_GET_CLASS(s);
739 struct mfi_ctrl_info info;
740 size_t dcmd_size = sizeof(info);
741 BusChild *kid;
742 int num_pd_disks = 0;
743 dma_addr_t residual;
744
745 memset(&info, 0x0, dcmd_size);
746 if (cmd->iov_size < dcmd_size) {
747 trace_megasas_dcmd_invalid_xfer_len(cmd->index, cmd->iov_size,
748 dcmd_size);
749 return MFI_STAT_INVALID_PARAMETER;
750 }
751
752 info.pci.vendor = cpu_to_le16(pci_class->vendor_id);
753 info.pci.device = cpu_to_le16(pci_class->device_id);
754 info.pci.subvendor = cpu_to_le16(pci_class->subsystem_vendor_id);
755 info.pci.subdevice = cpu_to_le16(pci_class->subsystem_id);
756
757 /*
758 * For some reason the firmware supports
759 * only up to 8 device ports.
760 * Despite supporting a far larger number
761 * of devices for the physical devices.
762 * So just display the first 8 devices
763 * in the device port list, independent
764 * of how many logical devices are actually
765 * present.
766 */
767 info.host.type = MFI_INFO_HOST_PCIE;
768 info.device.type = MFI_INFO_DEV_SAS3G;
769 info.device.port_count = 8;
770 QTAILQ_FOREACH(kid, &s->bus.qbus.children, sibling) {
771 SCSIDevice *sdev = SCSI_DEVICE(kid->child);
772 uint16_t pd_id;
773
774 if (num_pd_disks < 8) {
775 pd_id = ((sdev->id & 0xFF) << 8) | (sdev->lun & 0xFF);
776 info.device.port_addr[num_pd_disks] =
777 cpu_to_le64(megasas_get_sata_addr(pd_id));
778 }
779 num_pd_disks++;
780 }
781
782 memcpy(info.product_name, base_class->product_name, 24);
783 snprintf(info.serial_number, 32, "%s", s->hba_serial);
784 snprintf(info.package_version, 0x60, "%s-QEMU", qemu_hw_version());
785 memcpy(info.image_component[0].name, "APP", 3);
786 snprintf(info.image_component[0].version, 10, "%s-QEMU",
787 base_class->product_version);
788 memcpy(info.image_component[0].build_date, "Apr 1 2014", 11);
789 memcpy(info.image_component[0].build_time, "12:34:56", 8);
790 info.image_component_count = 1;
791 if (pci_dev->has_rom) {
792 uint8_t biosver[32];
793 uint8_t *ptr;
794
795 ptr = memory_region_get_ram_ptr(&pci_dev->rom);
796 memcpy(biosver, ptr + 0x41, 31);
797 biosver[31] = 0;
798 memcpy(info.image_component[1].name, "BIOS", 4);
799 memcpy(info.image_component[1].version, biosver,
800 strlen((const char *)biosver));
801 info.image_component_count++;
802 }
803 info.current_fw_time = cpu_to_le32(megasas_fw_time());
804 info.max_arms = 32;
805 info.max_spans = 8;
806 info.max_arrays = MEGASAS_MAX_ARRAYS;
807 info.max_lds = MFI_MAX_LD;
808 info.max_cmds = cpu_to_le16(s->fw_cmds);
809 info.max_sg_elements = cpu_to_le16(s->fw_sge);
810 info.max_request_size = cpu_to_le32(MEGASAS_MAX_SECTORS);
811 if (!megasas_is_jbod(s))
812 info.lds_present = cpu_to_le16(num_pd_disks);
813 info.pd_present = cpu_to_le16(num_pd_disks);
814 info.pd_disks_present = cpu_to_le16(num_pd_disks);
815 info.hw_present = cpu_to_le32(MFI_INFO_HW_NVRAM |
816 MFI_INFO_HW_MEM |
817 MFI_INFO_HW_FLASH);
818 info.memory_size = cpu_to_le16(512);
819 info.nvram_size = cpu_to_le16(32);
820 info.flash_size = cpu_to_le16(16);
821 info.raid_levels = cpu_to_le32(MFI_INFO_RAID_0);
822 info.adapter_ops = cpu_to_le32(MFI_INFO_AOPS_RBLD_RATE |
823 MFI_INFO_AOPS_SELF_DIAGNOSTIC |
824 MFI_INFO_AOPS_MIXED_ARRAY);
825 info.ld_ops = cpu_to_le32(MFI_INFO_LDOPS_DISK_CACHE_POLICY |
826 MFI_INFO_LDOPS_ACCESS_POLICY |
827 MFI_INFO_LDOPS_IO_POLICY |
828 MFI_INFO_LDOPS_WRITE_POLICY |
829 MFI_INFO_LDOPS_READ_POLICY);
830 info.max_strips_per_io = cpu_to_le16(s->fw_sge);
831 info.stripe_sz_ops.min = 3;
832 info.stripe_sz_ops.max = ctz32(MEGASAS_MAX_SECTORS + 1);
833 info.properties.pred_fail_poll_interval = cpu_to_le16(300);
834 info.properties.intr_throttle_cnt = cpu_to_le16(16);
835 info.properties.intr_throttle_timeout = cpu_to_le16(50);
836 info.properties.rebuild_rate = 30;
837 info.properties.patrol_read_rate = 30;
838 info.properties.bgi_rate = 30;
839 info.properties.cc_rate = 30;
840 info.properties.recon_rate = 30;
841 info.properties.cache_flush_interval = 4;
842 info.properties.spinup_drv_cnt = 2;
843 info.properties.spinup_delay = 6;
844 info.properties.ecc_bucket_size = 15;
845 info.properties.ecc_bucket_leak_rate = cpu_to_le16(1440);
846 info.properties.expose_encl_devices = 1;
847 info.properties.OnOffProperties = cpu_to_le32(MFI_CTRL_PROP_EnableJBOD);
848 info.pd_ops = cpu_to_le32(MFI_INFO_PDOPS_FORCE_ONLINE |
849 MFI_INFO_PDOPS_FORCE_OFFLINE);
850 info.pd_mix_support = cpu_to_le32(MFI_INFO_PDMIX_SAS |
851 MFI_INFO_PDMIX_SATA |
852 MFI_INFO_PDMIX_LD);
853
854 dma_buf_read(&info, dcmd_size, &residual, &cmd->qsg,
855 MEMTXATTRS_UNSPECIFIED);
856 cmd->iov_size -= residual;
857 return MFI_STAT_OK;
858 }
859
860 static int megasas_mfc_get_defaults(MegasasState *s, MegasasCmd *cmd)
861 {
862 struct mfi_defaults info;
863 size_t dcmd_size = sizeof(struct mfi_defaults);
864 dma_addr_t residual;
865
866 memset(&info, 0x0, dcmd_size);
867 if (cmd->iov_size < dcmd_size) {
868 trace_megasas_dcmd_invalid_xfer_len(cmd->index, cmd->iov_size,
869 dcmd_size);
870 return MFI_STAT_INVALID_PARAMETER;
871 }
872
873 info.sas_addr = cpu_to_le64(s->sas_addr);
874 info.stripe_size = 3;
875 info.flush_time = 4;
876 info.background_rate = 30;
877 info.allow_mix_in_enclosure = 1;
878 info.allow_mix_in_ld = 1;
879 info.direct_pd_mapping = 1;
880 /* Enable for BIOS support */
881 info.bios_enumerate_lds = 1;
882 info.disable_ctrl_r = 1;
883 info.expose_enclosure_devices = 1;
884 info.disable_preboot_cli = 1;
885 info.cluster_disable = 1;
886
887 dma_buf_read(&info, dcmd_size, &residual, &cmd->qsg,
888 MEMTXATTRS_UNSPECIFIED);
889 cmd->iov_size -= residual;
890 return MFI_STAT_OK;
891 }
892
893 static int megasas_dcmd_get_bios_info(MegasasState *s, MegasasCmd *cmd)
894 {
895 struct mfi_bios_data info;
896 size_t dcmd_size = sizeof(info);
897 dma_addr_t residual;
898
899 memset(&info, 0x0, dcmd_size);
900 if (cmd->iov_size < dcmd_size) {
901 trace_megasas_dcmd_invalid_xfer_len(cmd->index, cmd->iov_size,
902 dcmd_size);
903 return MFI_STAT_INVALID_PARAMETER;
904 }
905 info.continue_on_error = 1;
906 info.verbose = 1;
907 if (megasas_is_jbod(s)) {
908 info.expose_all_drives = 1;
909 }
910
911 dma_buf_read(&info, dcmd_size, &residual, &cmd->qsg,
912 MEMTXATTRS_UNSPECIFIED);
913 cmd->iov_size -= residual;
914 return MFI_STAT_OK;
915 }
916
917 static int megasas_dcmd_get_fw_time(MegasasState *s, MegasasCmd *cmd)
918 {
919 uint64_t fw_time;
920 size_t dcmd_size = sizeof(fw_time);
921 dma_addr_t residual;
922
923 fw_time = cpu_to_le64(megasas_fw_time());
924
925 dma_buf_read(&fw_time, dcmd_size, &residual, &cmd->qsg,
926 MEMTXATTRS_UNSPECIFIED);
927 cmd->iov_size -= residual;
928 return MFI_STAT_OK;
929 }
930
931 static int megasas_dcmd_set_fw_time(MegasasState *s, MegasasCmd *cmd)
932 {
933 uint64_t fw_time;
934
935 /* This is a dummy; setting of firmware time is not allowed */
936 memcpy(&fw_time, cmd->frame->dcmd.mbox, sizeof(fw_time));
937
938 trace_megasas_dcmd_set_fw_time(cmd->index, fw_time);
939 fw_time = cpu_to_le64(megasas_fw_time());
940 return MFI_STAT_OK;
941 }
942
943 static int megasas_event_info(MegasasState *s, MegasasCmd *cmd)
944 {
945 struct mfi_evt_log_state info;
946 size_t dcmd_size = sizeof(info);
947 dma_addr_t residual;
948
949 memset(&info, 0, dcmd_size);
950
951 info.newest_seq_num = cpu_to_le32(s->event_count);
952 info.shutdown_seq_num = cpu_to_le32(s->shutdown_event);
953 info.boot_seq_num = cpu_to_le32(s->boot_event);
954
955 dma_buf_read(&info, dcmd_size, &residual, &cmd->qsg,
956 MEMTXATTRS_UNSPECIFIED);
957 cmd->iov_size -= residual;
958 return MFI_STAT_OK;
959 }
960
961 static int megasas_event_wait(MegasasState *s, MegasasCmd *cmd)
962 {
963 union mfi_evt event;
964
965 if (cmd->iov_size < sizeof(struct mfi_evt_detail)) {
966 trace_megasas_dcmd_invalid_xfer_len(cmd->index, cmd->iov_size,
967 sizeof(struct mfi_evt_detail));
968 return MFI_STAT_INVALID_PARAMETER;
969 }
970 s->event_count = cpu_to_le32(cmd->frame->dcmd.mbox[0]);
971 event.word = cpu_to_le32(cmd->frame->dcmd.mbox[4]);
972 s->event_locale = event.members.locale;
973 s->event_class = event.members.class;
974 s->event_cmd = cmd;
975 /* Decrease busy count; event frame doesn't count here */
976 s->busy--;
977 cmd->iov_size = sizeof(struct mfi_evt_detail);
978 return MFI_STAT_INVALID_STATUS;
979 }
980
981 static int megasas_dcmd_pd_get_list(MegasasState *s, MegasasCmd *cmd)
982 {
983 struct mfi_pd_list info;
984 size_t dcmd_size = sizeof(info);
985 BusChild *kid;
986 uint32_t offset, dcmd_limit, num_pd_disks = 0, max_pd_disks;
987 dma_addr_t residual;
988
989 memset(&info, 0, dcmd_size);
990 offset = 8;
991 dcmd_limit = offset + sizeof(struct mfi_pd_address);
992 if (cmd->iov_size < dcmd_limit) {
993 trace_megasas_dcmd_invalid_xfer_len(cmd->index, cmd->iov_size,
994 dcmd_limit);
995 return MFI_STAT_INVALID_PARAMETER;
996 }
997
998 max_pd_disks = (cmd->iov_size - offset) / sizeof(struct mfi_pd_address);
999 if (max_pd_disks > MFI_MAX_SYS_PDS) {
1000 max_pd_disks = MFI_MAX_SYS_PDS;
1001 }
1002 QTAILQ_FOREACH(kid, &s->bus.qbus.children, sibling) {
1003 SCSIDevice *sdev = SCSI_DEVICE(kid->child);
1004 uint16_t pd_id;
1005
1006 if (num_pd_disks >= max_pd_disks)
1007 break;
1008
1009 pd_id = ((sdev->id & 0xFF) << 8) | (sdev->lun & 0xFF);
1010 info.addr[num_pd_disks].device_id = cpu_to_le16(pd_id);
1011 info.addr[num_pd_disks].encl_device_id = 0xFFFF;
1012 info.addr[num_pd_disks].encl_index = 0;
1013 info.addr[num_pd_disks].slot_number = sdev->id & 0xFF;
1014 info.addr[num_pd_disks].scsi_dev_type = sdev->type;
1015 info.addr[num_pd_disks].connect_port_bitmap = 0x1;
1016 info.addr[num_pd_disks].sas_addr[0] =
1017 cpu_to_le64(megasas_get_sata_addr(pd_id));
1018 num_pd_disks++;
1019 offset += sizeof(struct mfi_pd_address);
1020 }
1021 trace_megasas_dcmd_pd_get_list(cmd->index, num_pd_disks,
1022 max_pd_disks, offset);
1023
1024 info.size = cpu_to_le32(offset);
1025 info.count = cpu_to_le32(num_pd_disks);
1026
1027 dma_buf_read(&info, offset, &residual, &cmd->qsg,
1028 MEMTXATTRS_UNSPECIFIED);
1029 cmd->iov_size -= residual;
1030 return MFI_STAT_OK;
1031 }
1032
1033 static int megasas_dcmd_pd_list_query(MegasasState *s, MegasasCmd *cmd)
1034 {
1035 uint16_t flags;
1036
1037 /* mbox0 contains flags */
1038 flags = le16_to_cpu(cmd->frame->dcmd.mbox[0]);
1039 trace_megasas_dcmd_pd_list_query(cmd->index, flags);
1040 if (flags == MR_PD_QUERY_TYPE_ALL ||
1041 megasas_is_jbod(s)) {
1042 return megasas_dcmd_pd_get_list(s, cmd);
1043 }
1044
1045 return MFI_STAT_OK;
1046 }
1047
1048 static int megasas_pd_get_info_submit(SCSIDevice *sdev, int lun,
1049 MegasasCmd *cmd)
1050 {
1051 struct mfi_pd_info *info = cmd->iov_buf;
1052 size_t dcmd_size = sizeof(struct mfi_pd_info);
1053 uint64_t pd_size;
1054 uint16_t pd_id = ((sdev->id & 0xFF) << 8) | (lun & 0xFF);
1055 uint8_t cmdbuf[6];
1056 size_t len;
1057 dma_addr_t residual;
1058
1059 if (!cmd->iov_buf) {
1060 cmd->iov_buf = g_malloc0(dcmd_size);
1061 info = cmd->iov_buf;
1062 info->inquiry_data[0] = 0x7f; /* Force PQual 0x3, PType 0x1f */
1063 info->vpd_page83[0] = 0x7f;
1064 megasas_setup_inquiry(cmdbuf, 0, sizeof(info->inquiry_data));
1065 cmd->req = scsi_req_new(sdev, cmd->index, lun, cmdbuf, sizeof(cmdbuf), cmd);
1066 if (!cmd->req) {
1067 trace_megasas_dcmd_req_alloc_failed(cmd->index,
1068 "PD get info std inquiry");
1069 g_free(cmd->iov_buf);
1070 cmd->iov_buf = NULL;
1071 return MFI_STAT_FLASH_ALLOC_FAIL;
1072 }
1073 trace_megasas_dcmd_internal_submit(cmd->index,
1074 "PD get info std inquiry", lun);
1075 len = scsi_req_enqueue(cmd->req);
1076 if (len > 0) {
1077 cmd->iov_size = len;
1078 scsi_req_continue(cmd->req);
1079 }
1080 return MFI_STAT_INVALID_STATUS;
1081 } else if (info->inquiry_data[0] != 0x7f && info->vpd_page83[0] == 0x7f) {
1082 megasas_setup_inquiry(cmdbuf, 0x83, sizeof(info->vpd_page83));
1083 cmd->req = scsi_req_new(sdev, cmd->index, lun, cmdbuf, sizeof(cmdbuf), cmd);
1084 if (!cmd->req) {
1085 trace_megasas_dcmd_req_alloc_failed(cmd->index,
1086 "PD get info vpd inquiry");
1087 return MFI_STAT_FLASH_ALLOC_FAIL;
1088 }
1089 trace_megasas_dcmd_internal_submit(cmd->index,
1090 "PD get info vpd inquiry", lun);
1091 len = scsi_req_enqueue(cmd->req);
1092 if (len > 0) {
1093 cmd->iov_size = len;
1094 scsi_req_continue(cmd->req);
1095 }
1096 return MFI_STAT_INVALID_STATUS;
1097 }
1098 /* Finished, set FW state */
1099 if ((info->inquiry_data[0] >> 5) == 0) {
1100 if (megasas_is_jbod(cmd->state)) {
1101 info->fw_state = cpu_to_le16(MFI_PD_STATE_SYSTEM);
1102 } else {
1103 info->fw_state = cpu_to_le16(MFI_PD_STATE_ONLINE);
1104 }
1105 } else {
1106 info->fw_state = cpu_to_le16(MFI_PD_STATE_OFFLINE);
1107 }
1108
1109 info->ref.v.device_id = cpu_to_le16(pd_id);
1110 info->state.ddf.pd_type = cpu_to_le16(MFI_PD_DDF_TYPE_IN_VD|
1111 MFI_PD_DDF_TYPE_INTF_SAS);
1112 blk_get_geometry(sdev->conf.blk, &pd_size);
1113 info->raw_size = cpu_to_le64(pd_size);
1114 info->non_coerced_size = cpu_to_le64(pd_size);
1115 info->coerced_size = cpu_to_le64(pd_size);
1116 info->encl_device_id = 0xFFFF;
1117 info->slot_number = (sdev->id & 0xFF);
1118 info->path_info.count = 1;
1119 info->path_info.sas_addr[0] =
1120 cpu_to_le64(megasas_get_sata_addr(pd_id));
1121 info->connected_port_bitmap = 0x1;
1122 info->device_speed = 1;
1123 info->link_speed = 1;
1124 dma_buf_read(cmd->iov_buf, dcmd_size, &residual, &cmd->qsg,
1125 MEMTXATTRS_UNSPECIFIED);
1126 cmd->iov_size -= residual;
1127 g_free(cmd->iov_buf);
1128 cmd->iov_size = dcmd_size - residual;
1129 cmd->iov_buf = NULL;
1130 return MFI_STAT_OK;
1131 }
1132
1133 static int megasas_dcmd_pd_get_info(MegasasState *s, MegasasCmd *cmd)
1134 {
1135 size_t dcmd_size = sizeof(struct mfi_pd_info);
1136 uint16_t pd_id;
1137 uint8_t target_id, lun_id;
1138 SCSIDevice *sdev = NULL;
1139 int retval = MFI_STAT_DEVICE_NOT_FOUND;
1140
1141 if (cmd->iov_size < dcmd_size) {
1142 return MFI_STAT_INVALID_PARAMETER;
1143 }
1144
1145 /* mbox0 has the ID */
1146 pd_id = le16_to_cpu(cmd->frame->dcmd.mbox[0]);
1147 target_id = (pd_id >> 8) & 0xFF;
1148 lun_id = pd_id & 0xFF;
1149 sdev = scsi_device_find(&s->bus, 0, target_id, lun_id);
1150 trace_megasas_dcmd_pd_get_info(cmd->index, pd_id);
1151
1152 if (sdev) {
1153 /* Submit inquiry */
1154 retval = megasas_pd_get_info_submit(sdev, pd_id, cmd);
1155 }
1156
1157 return retval;
1158 }
1159
1160 static int megasas_dcmd_ld_get_list(MegasasState *s, MegasasCmd *cmd)
1161 {
1162 struct mfi_ld_list info;
1163 size_t dcmd_size = sizeof(info);
1164 dma_addr_t residual;
1165 uint32_t num_ld_disks = 0, max_ld_disks;
1166 uint64_t ld_size;
1167 BusChild *kid;
1168
1169 memset(&info, 0, dcmd_size);
1170 if (cmd->iov_size > dcmd_size) {
1171 trace_megasas_dcmd_invalid_xfer_len(cmd->index, cmd->iov_size,
1172 dcmd_size);
1173 return MFI_STAT_INVALID_PARAMETER;
1174 }
1175
1176 max_ld_disks = (cmd->iov_size - 8) / 16;
1177 if (megasas_is_jbod(s)) {
1178 max_ld_disks = 0;
1179 }
1180 if (max_ld_disks > MFI_MAX_LD) {
1181 max_ld_disks = MFI_MAX_LD;
1182 }
1183 QTAILQ_FOREACH(kid, &s->bus.qbus.children, sibling) {
1184 SCSIDevice *sdev = SCSI_DEVICE(kid->child);
1185
1186 if (num_ld_disks >= max_ld_disks) {
1187 break;
1188 }
1189 /* Logical device size is in blocks */
1190 blk_get_geometry(sdev->conf.blk, &ld_size);
1191 info.ld_list[num_ld_disks].ld.v.target_id = sdev->id;
1192 info.ld_list[num_ld_disks].state = MFI_LD_STATE_OPTIMAL;
1193 info.ld_list[num_ld_disks].size = cpu_to_le64(ld_size);
1194 num_ld_disks++;
1195 }
1196 info.ld_count = cpu_to_le32(num_ld_disks);
1197 trace_megasas_dcmd_ld_get_list(cmd->index, num_ld_disks, max_ld_disks);
1198
1199 dma_buf_read(&info, dcmd_size, &residual, &cmd->qsg,
1200 MEMTXATTRS_UNSPECIFIED);
1201 cmd->iov_size = dcmd_size - residual;
1202 return MFI_STAT_OK;
1203 }
1204
1205 static int megasas_dcmd_ld_list_query(MegasasState *s, MegasasCmd *cmd)
1206 {
1207 uint16_t flags;
1208 struct mfi_ld_targetid_list info;
1209 size_t dcmd_size = sizeof(info);
1210 dma_addr_t residual;
1211 uint32_t num_ld_disks = 0, max_ld_disks = s->fw_luns;
1212 BusChild *kid;
1213
1214 /* mbox0 contains flags */
1215 flags = le16_to_cpu(cmd->frame->dcmd.mbox[0]);
1216 trace_megasas_dcmd_ld_list_query(cmd->index, flags);
1217 if (flags != MR_LD_QUERY_TYPE_ALL &&
1218 flags != MR_LD_QUERY_TYPE_EXPOSED_TO_HOST) {
1219 max_ld_disks = 0;
1220 }
1221
1222 memset(&info, 0, dcmd_size);
1223 if (cmd->iov_size < 12) {
1224 trace_megasas_dcmd_invalid_xfer_len(cmd->index, cmd->iov_size,
1225 dcmd_size);
1226 return MFI_STAT_INVALID_PARAMETER;
1227 }
1228 dcmd_size = sizeof(uint32_t) * 2 + 3;
1229 max_ld_disks = cmd->iov_size - dcmd_size;
1230 if (megasas_is_jbod(s)) {
1231 max_ld_disks = 0;
1232 }
1233 if (max_ld_disks > MFI_MAX_LD) {
1234 max_ld_disks = MFI_MAX_LD;
1235 }
1236 QTAILQ_FOREACH(kid, &s->bus.qbus.children, sibling) {
1237 SCSIDevice *sdev = SCSI_DEVICE(kid->child);
1238
1239 if (num_ld_disks >= max_ld_disks) {
1240 break;
1241 }
1242 info.targetid[num_ld_disks] = sdev->lun;
1243 num_ld_disks++;
1244 dcmd_size++;
1245 }
1246 info.ld_count = cpu_to_le32(num_ld_disks);
1247 info.size = dcmd_size;
1248 trace_megasas_dcmd_ld_get_list(cmd->index, num_ld_disks, max_ld_disks);
1249
1250 dma_buf_read(&info, dcmd_size, &residual, &cmd->qsg,
1251 MEMTXATTRS_UNSPECIFIED);
1252 cmd->iov_size = dcmd_size - residual;
1253 return MFI_STAT_OK;
1254 }
1255
1256 static int megasas_ld_get_info_submit(SCSIDevice *sdev, int lun,
1257 MegasasCmd *cmd)
1258 {
1259 struct mfi_ld_info *info = cmd->iov_buf;
1260 size_t dcmd_size = sizeof(struct mfi_ld_info);
1261 uint8_t cdb[6];
1262 ssize_t len;
1263 dma_addr_t residual;
1264 uint16_t sdev_id = ((sdev->id & 0xFF) << 8) | (lun & 0xFF);
1265 uint64_t ld_size;
1266
1267 if (!cmd->iov_buf) {
1268 cmd->iov_buf = g_malloc0(dcmd_size);
1269 info = cmd->iov_buf;
1270 megasas_setup_inquiry(cdb, 0x83, sizeof(info->vpd_page83));
1271 cmd->req = scsi_req_new(sdev, cmd->index, lun, cdb, sizeof(cdb), cmd);
1272 if (!cmd->req) {
1273 trace_megasas_dcmd_req_alloc_failed(cmd->index,
1274 "LD get info vpd inquiry");
1275 g_free(cmd->iov_buf);
1276 cmd->iov_buf = NULL;
1277 return MFI_STAT_FLASH_ALLOC_FAIL;
1278 }
1279 trace_megasas_dcmd_internal_submit(cmd->index,
1280 "LD get info vpd inquiry", lun);
1281 len = scsi_req_enqueue(cmd->req);
1282 if (len > 0) {
1283 cmd->iov_size = len;
1284 scsi_req_continue(cmd->req);
1285 }
1286 return MFI_STAT_INVALID_STATUS;
1287 }
1288
1289 info->ld_config.params.state = MFI_LD_STATE_OPTIMAL;
1290 info->ld_config.properties.ld.v.target_id = lun;
1291 info->ld_config.params.stripe_size = 3;
1292 info->ld_config.params.num_drives = 1;
1293 info->ld_config.params.is_consistent = 1;
1294 /* Logical device size is in blocks */
1295 blk_get_geometry(sdev->conf.blk, &ld_size);
1296 info->size = cpu_to_le64(ld_size);
1297 memset(info->ld_config.span, 0, sizeof(info->ld_config.span));
1298 info->ld_config.span[0].start_block = 0;
1299 info->ld_config.span[0].num_blocks = info->size;
1300 info->ld_config.span[0].array_ref = cpu_to_le16(sdev_id);
1301
1302 dma_buf_read(cmd->iov_buf, dcmd_size, &residual, &cmd->qsg,
1303 MEMTXATTRS_UNSPECIFIED);
1304 g_free(cmd->iov_buf);
1305 cmd->iov_size = dcmd_size - residual;
1306 cmd->iov_buf = NULL;
1307 return MFI_STAT_OK;
1308 }
1309
1310 static int megasas_dcmd_ld_get_info(MegasasState *s, MegasasCmd *cmd)
1311 {
1312 struct mfi_ld_info info;
1313 size_t dcmd_size = sizeof(info);
1314 uint16_t ld_id;
1315 uint32_t max_ld_disks = s->fw_luns;
1316 SCSIDevice *sdev = NULL;
1317 int retval = MFI_STAT_DEVICE_NOT_FOUND;
1318
1319 if (cmd->iov_size < dcmd_size) {
1320 return MFI_STAT_INVALID_PARAMETER;
1321 }
1322
1323 /* mbox0 has the ID */
1324 ld_id = le16_to_cpu(cmd->frame->dcmd.mbox[0]);
1325 trace_megasas_dcmd_ld_get_info(cmd->index, ld_id);
1326
1327 if (megasas_is_jbod(s)) {
1328 return MFI_STAT_DEVICE_NOT_FOUND;
1329 }
1330
1331 if (ld_id < max_ld_disks) {
1332 sdev = scsi_device_find(&s->bus, 0, ld_id, 0);
1333 }
1334
1335 if (sdev) {
1336 retval = megasas_ld_get_info_submit(sdev, ld_id, cmd);
1337 }
1338
1339 return retval;
1340 }
1341
1342 static int megasas_dcmd_cfg_read(MegasasState *s, MegasasCmd *cmd)
1343 {
1344 uint8_t data[4096] = { 0 };
1345 struct mfi_config_data *info;
1346 int num_pd_disks = 0, array_offset, ld_offset;
1347 BusChild *kid;
1348 dma_addr_t residual;
1349
1350 if (cmd->iov_size > 4096) {
1351 return MFI_STAT_INVALID_PARAMETER;
1352 }
1353
1354 QTAILQ_FOREACH(kid, &s->bus.qbus.children, sibling) {
1355 num_pd_disks++;
1356 }
1357 info = (struct mfi_config_data *)&data;
1358 /*
1359 * Array mapping:
1360 * - One array per SCSI device
1361 * - One logical drive per SCSI device
1362 * spanning the entire device
1363 */
1364 info->array_count = num_pd_disks;
1365 info->array_size = sizeof(struct mfi_array) * num_pd_disks;
1366 info->log_drv_count = num_pd_disks;
1367 info->log_drv_size = sizeof(struct mfi_ld_config) * num_pd_disks;
1368 info->spares_count = 0;
1369 info->spares_size = sizeof(struct mfi_spare);
1370 info->size = sizeof(struct mfi_config_data) + info->array_size +
1371 info->log_drv_size;
1372 if (info->size > 4096) {
1373 return MFI_STAT_INVALID_PARAMETER;
1374 }
1375
1376 array_offset = sizeof(struct mfi_config_data);
1377 ld_offset = array_offset + sizeof(struct mfi_array) * num_pd_disks;
1378
1379 QTAILQ_FOREACH(kid, &s->bus.qbus.children, sibling) {
1380 SCSIDevice *sdev = SCSI_DEVICE(kid->child);
1381 uint16_t sdev_id = ((sdev->id & 0xFF) << 8) | (sdev->lun & 0xFF);
1382 struct mfi_array *array;
1383 struct mfi_ld_config *ld;
1384 uint64_t pd_size;
1385 int i;
1386
1387 array = (struct mfi_array *)(data + array_offset);
1388 blk_get_geometry(sdev->conf.blk, &pd_size);
1389 array->size = cpu_to_le64(pd_size);
1390 array->num_drives = 1;
1391 array->array_ref = cpu_to_le16(sdev_id);
1392 array->pd[0].ref.v.device_id = cpu_to_le16(sdev_id);
1393 array->pd[0].ref.v.seq_num = 0;
1394 array->pd[0].fw_state = MFI_PD_STATE_ONLINE;
1395 array->pd[0].encl.pd = 0xFF;
1396 array->pd[0].encl.slot = (sdev->id & 0xFF);
1397 for (i = 1; i < MFI_MAX_ROW_SIZE; i++) {
1398 array->pd[i].ref.v.device_id = 0xFFFF;
1399 array->pd[i].ref.v.seq_num = 0;
1400 array->pd[i].fw_state = MFI_PD_STATE_UNCONFIGURED_GOOD;
1401 array->pd[i].encl.pd = 0xFF;
1402 array->pd[i].encl.slot = 0xFF;
1403 }
1404 array_offset += sizeof(struct mfi_array);
1405 ld = (struct mfi_ld_config *)(data + ld_offset);
1406 memset(ld, 0, sizeof(struct mfi_ld_config));
1407 ld->properties.ld.v.target_id = sdev->id;
1408 ld->properties.default_cache_policy = MR_LD_CACHE_READ_AHEAD |
1409 MR_LD_CACHE_READ_ADAPTIVE;
1410 ld->properties.current_cache_policy = MR_LD_CACHE_READ_AHEAD |
1411 MR_LD_CACHE_READ_ADAPTIVE;
1412 ld->params.state = MFI_LD_STATE_OPTIMAL;
1413 ld->params.stripe_size = 3;
1414 ld->params.num_drives = 1;
1415 ld->params.span_depth = 1;
1416 ld->params.is_consistent = 1;
1417 ld->span[0].start_block = 0;
1418 ld->span[0].num_blocks = cpu_to_le64(pd_size);
1419 ld->span[0].array_ref = cpu_to_le16(sdev_id);
1420 ld_offset += sizeof(struct mfi_ld_config);
1421 }
1422
1423 dma_buf_read(data, info->size, &residual, &cmd->qsg,
1424 MEMTXATTRS_UNSPECIFIED);
1425 cmd->iov_size -= residual;
1426 return MFI_STAT_OK;
1427 }
1428
1429 static int megasas_dcmd_get_properties(MegasasState *s, MegasasCmd *cmd)
1430 {
1431 struct mfi_ctrl_props info;
1432 size_t dcmd_size = sizeof(info);
1433 dma_addr_t residual;
1434
1435 memset(&info, 0x0, dcmd_size);
1436 if (cmd->iov_size < dcmd_size) {
1437 trace_megasas_dcmd_invalid_xfer_len(cmd->index, cmd->iov_size,
1438 dcmd_size);
1439 return MFI_STAT_INVALID_PARAMETER;
1440 }
1441 info.pred_fail_poll_interval = cpu_to_le16(300);
1442 info.intr_throttle_cnt = cpu_to_le16(16);
1443 info.intr_throttle_timeout = cpu_to_le16(50);
1444 info.rebuild_rate = 30;
1445 info.patrol_read_rate = 30;
1446 info.bgi_rate = 30;
1447 info.cc_rate = 30;
1448 info.recon_rate = 30;
1449 info.cache_flush_interval = 4;
1450 info.spinup_drv_cnt = 2;
1451 info.spinup_delay = 6;
1452 info.ecc_bucket_size = 15;
1453 info.ecc_bucket_leak_rate = cpu_to_le16(1440);
1454 info.expose_encl_devices = 1;
1455
1456 dma_buf_read(&info, dcmd_size, &residual, &cmd->qsg,
1457 MEMTXATTRS_UNSPECIFIED);
1458 cmd->iov_size -= residual;
1459 return MFI_STAT_OK;
1460 }
1461
1462 static int megasas_cache_flush(MegasasState *s, MegasasCmd *cmd)
1463 {
1464 blk_drain_all();
1465 return MFI_STAT_OK;
1466 }
1467
1468 static int megasas_ctrl_shutdown(MegasasState *s, MegasasCmd *cmd)
1469 {
1470 s->fw_state = MFI_FWSTATE_READY;
1471 return MFI_STAT_OK;
1472 }
1473
1474 /* Some implementations use CLUSTER RESET LD to simulate a device reset */
1475 static int megasas_cluster_reset_ld(MegasasState *s, MegasasCmd *cmd)
1476 {
1477 uint16_t target_id;
1478 int i;
1479
1480 /* mbox0 contains the device index */
1481 target_id = le16_to_cpu(cmd->frame->dcmd.mbox[0]);
1482 trace_megasas_dcmd_reset_ld(cmd->index, target_id);
1483 for (i = 0; i < s->fw_cmds; i++) {
1484 MegasasCmd *tmp_cmd = &s->frames[i];
1485 if (tmp_cmd->req && tmp_cmd->req->dev->id == target_id) {
1486 SCSIDevice *d = tmp_cmd->req->dev;
1487 device_cold_reset(&d->qdev);
1488 }
1489 }
1490 return MFI_STAT_OK;
1491 }
1492
1493 static int megasas_dcmd_set_properties(MegasasState *s, MegasasCmd *cmd)
1494 {
1495 struct mfi_ctrl_props info;
1496 size_t dcmd_size = sizeof(info);
1497
1498 if (cmd->iov_size < dcmd_size) {
1499 trace_megasas_dcmd_invalid_xfer_len(cmd->index, cmd->iov_size,
1500 dcmd_size);
1501 return MFI_STAT_INVALID_PARAMETER;
1502 }
1503 dma_buf_write(&info, dcmd_size, NULL, &cmd->qsg, MEMTXATTRS_UNSPECIFIED);
1504 trace_megasas_dcmd_unsupported(cmd->index, cmd->iov_size);
1505 return MFI_STAT_OK;
1506 }
1507
1508 static int megasas_dcmd_dummy(MegasasState *s, MegasasCmd *cmd)
1509 {
1510 trace_megasas_dcmd_dummy(cmd->index, cmd->iov_size);
1511 return MFI_STAT_OK;
1512 }
1513
1514 static const struct dcmd_cmd_tbl_t {
1515 int opcode;
1516 const char *desc;
1517 int (*func)(MegasasState *s, MegasasCmd *cmd);
1518 } dcmd_cmd_tbl[] = {
1519 { MFI_DCMD_CTRL_MFI_HOST_MEM_ALLOC, "CTRL_HOST_MEM_ALLOC",
1520 megasas_dcmd_dummy },
1521 { MFI_DCMD_CTRL_GET_INFO, "CTRL_GET_INFO",
1522 megasas_ctrl_get_info },
1523 { MFI_DCMD_CTRL_GET_PROPERTIES, "CTRL_GET_PROPERTIES",
1524 megasas_dcmd_get_properties },
1525 { MFI_DCMD_CTRL_SET_PROPERTIES, "CTRL_SET_PROPERTIES",
1526 megasas_dcmd_set_properties },
1527 { MFI_DCMD_CTRL_ALARM_GET, "CTRL_ALARM_GET",
1528 megasas_dcmd_dummy },
1529 { MFI_DCMD_CTRL_ALARM_ENABLE, "CTRL_ALARM_ENABLE",
1530 megasas_dcmd_dummy },
1531 { MFI_DCMD_CTRL_ALARM_DISABLE, "CTRL_ALARM_DISABLE",
1532 megasas_dcmd_dummy },
1533 { MFI_DCMD_CTRL_ALARM_SILENCE, "CTRL_ALARM_SILENCE",
1534 megasas_dcmd_dummy },
1535 { MFI_DCMD_CTRL_ALARM_TEST, "CTRL_ALARM_TEST",
1536 megasas_dcmd_dummy },
1537 { MFI_DCMD_CTRL_EVENT_GETINFO, "CTRL_EVENT_GETINFO",
1538 megasas_event_info },
1539 { MFI_DCMD_CTRL_EVENT_GET, "CTRL_EVENT_GET",
1540 megasas_dcmd_dummy },
1541 { MFI_DCMD_CTRL_EVENT_WAIT, "CTRL_EVENT_WAIT",
1542 megasas_event_wait },
1543 { MFI_DCMD_CTRL_SHUTDOWN, "CTRL_SHUTDOWN",
1544 megasas_ctrl_shutdown },
1545 { MFI_DCMD_HIBERNATE_STANDBY, "CTRL_STANDBY",
1546 megasas_dcmd_dummy },
1547 { MFI_DCMD_CTRL_GET_TIME, "CTRL_GET_TIME",
1548 megasas_dcmd_get_fw_time },
1549 { MFI_DCMD_CTRL_SET_TIME, "CTRL_SET_TIME",
1550 megasas_dcmd_set_fw_time },
1551 { MFI_DCMD_CTRL_BIOS_DATA_GET, "CTRL_BIOS_DATA_GET",
1552 megasas_dcmd_get_bios_info },
1553 { MFI_DCMD_CTRL_FACTORY_DEFAULTS, "CTRL_FACTORY_DEFAULTS",
1554 megasas_dcmd_dummy },
1555 { MFI_DCMD_CTRL_MFC_DEFAULTS_GET, "CTRL_MFC_DEFAULTS_GET",
1556 megasas_mfc_get_defaults },
1557 { MFI_DCMD_CTRL_MFC_DEFAULTS_SET, "CTRL_MFC_DEFAULTS_SET",
1558 megasas_dcmd_dummy },
1559 { MFI_DCMD_CTRL_CACHE_FLUSH, "CTRL_CACHE_FLUSH",
1560 megasas_cache_flush },
1561 { MFI_DCMD_PD_GET_LIST, "PD_GET_LIST",
1562 megasas_dcmd_pd_get_list },
1563 { MFI_DCMD_PD_LIST_QUERY, "PD_LIST_QUERY",
1564 megasas_dcmd_pd_list_query },
1565 { MFI_DCMD_PD_GET_INFO, "PD_GET_INFO",
1566 megasas_dcmd_pd_get_info },
1567 { MFI_DCMD_PD_STATE_SET, "PD_STATE_SET",
1568 megasas_dcmd_dummy },
1569 { MFI_DCMD_PD_REBUILD, "PD_REBUILD",
1570 megasas_dcmd_dummy },
1571 { MFI_DCMD_PD_BLINK, "PD_BLINK",
1572 megasas_dcmd_dummy },
1573 { MFI_DCMD_PD_UNBLINK, "PD_UNBLINK",
1574 megasas_dcmd_dummy },
1575 { MFI_DCMD_LD_GET_LIST, "LD_GET_LIST",
1576 megasas_dcmd_ld_get_list},
1577 { MFI_DCMD_LD_LIST_QUERY, "LD_LIST_QUERY",
1578 megasas_dcmd_ld_list_query },
1579 { MFI_DCMD_LD_GET_INFO, "LD_GET_INFO",
1580 megasas_dcmd_ld_get_info },
1581 { MFI_DCMD_LD_GET_PROP, "LD_GET_PROP",
1582 megasas_dcmd_dummy },
1583 { MFI_DCMD_LD_SET_PROP, "LD_SET_PROP",
1584 megasas_dcmd_dummy },
1585 { MFI_DCMD_LD_DELETE, "LD_DELETE",
1586 megasas_dcmd_dummy },
1587 { MFI_DCMD_CFG_READ, "CFG_READ",
1588 megasas_dcmd_cfg_read },
1589 { MFI_DCMD_CFG_ADD, "CFG_ADD",
1590 megasas_dcmd_dummy },
1591 { MFI_DCMD_CFG_CLEAR, "CFG_CLEAR",
1592 megasas_dcmd_dummy },
1593 { MFI_DCMD_CFG_FOREIGN_READ, "CFG_FOREIGN_READ",
1594 megasas_dcmd_dummy },
1595 { MFI_DCMD_CFG_FOREIGN_IMPORT, "CFG_FOREIGN_IMPORT",
1596 megasas_dcmd_dummy },
1597 { MFI_DCMD_BBU_STATUS, "BBU_STATUS",
1598 megasas_dcmd_dummy },
1599 { MFI_DCMD_BBU_CAPACITY_INFO, "BBU_CAPACITY_INFO",
1600 megasas_dcmd_dummy },
1601 { MFI_DCMD_BBU_DESIGN_INFO, "BBU_DESIGN_INFO",
1602 megasas_dcmd_dummy },
1603 { MFI_DCMD_BBU_PROP_GET, "BBU_PROP_GET",
1604 megasas_dcmd_dummy },
1605 { MFI_DCMD_CLUSTER, "CLUSTER",
1606 megasas_dcmd_dummy },
1607 { MFI_DCMD_CLUSTER_RESET_ALL, "CLUSTER_RESET_ALL",
1608 megasas_dcmd_dummy },
1609 { MFI_DCMD_CLUSTER_RESET_LD, "CLUSTER_RESET_LD",
1610 megasas_cluster_reset_ld },
1611 { -1, NULL, NULL }
1612 };
1613
1614 static int megasas_handle_dcmd(MegasasState *s, MegasasCmd *cmd)
1615 {
1616 int retval = 0;
1617 size_t len;
1618 const struct dcmd_cmd_tbl_t *cmdptr = dcmd_cmd_tbl;
1619
1620 cmd->dcmd_opcode = le32_to_cpu(cmd->frame->dcmd.opcode);
1621 trace_megasas_handle_dcmd(cmd->index, cmd->dcmd_opcode);
1622 if (megasas_map_dcmd(s, cmd) < 0) {
1623 return MFI_STAT_MEMORY_NOT_AVAILABLE;
1624 }
1625 while (cmdptr->opcode != -1 && cmdptr->opcode != cmd->dcmd_opcode) {
1626 cmdptr++;
1627 }
1628 len = cmd->iov_size;
1629 if (cmdptr->opcode == -1) {
1630 trace_megasas_dcmd_unhandled(cmd->index, cmd->dcmd_opcode, len);
1631 retval = megasas_dcmd_dummy(s, cmd);
1632 } else {
1633 trace_megasas_dcmd_enter(cmd->index, cmdptr->desc, len);
1634 retval = cmdptr->func(s, cmd);
1635 }
1636 if (retval != MFI_STAT_INVALID_STATUS) {
1637 megasas_finish_dcmd(cmd, len);
1638 }
1639 return retval;
1640 }
1641
1642 static int megasas_finish_internal_dcmd(MegasasCmd *cmd,
1643 SCSIRequest *req, dma_addr_t residual)
1644 {
1645 int retval = MFI_STAT_OK;
1646 int lun = req->lun;
1647
1648 trace_megasas_dcmd_internal_finish(cmd->index, cmd->dcmd_opcode, lun);
1649 cmd->iov_size -= residual;
1650 switch (cmd->dcmd_opcode) {
1651 case MFI_DCMD_PD_GET_INFO:
1652 retval = megasas_pd_get_info_submit(req->dev, lun, cmd);
1653 break;
1654 case MFI_DCMD_LD_GET_INFO:
1655 retval = megasas_ld_get_info_submit(req->dev, lun, cmd);
1656 break;
1657 default:
1658 trace_megasas_dcmd_internal_invalid(cmd->index, cmd->dcmd_opcode);
1659 retval = MFI_STAT_INVALID_DCMD;
1660 break;
1661 }
1662 if (retval != MFI_STAT_INVALID_STATUS) {
1663 megasas_finish_dcmd(cmd, cmd->iov_size);
1664 }
1665 return retval;
1666 }
1667
1668 static int megasas_enqueue_req(MegasasCmd *cmd, bool is_write)
1669 {
1670 int len;
1671
1672 len = scsi_req_enqueue(cmd->req);
1673 if (len < 0) {
1674 len = -len;
1675 }
1676 if (len > 0) {
1677 if (len > cmd->iov_size) {
1678 if (is_write) {
1679 trace_megasas_iov_write_overflow(cmd->index, len,
1680 cmd->iov_size);
1681 } else {
1682 trace_megasas_iov_read_overflow(cmd->index, len,
1683 cmd->iov_size);
1684 }
1685 }
1686 if (len < cmd->iov_size) {
1687 if (is_write) {
1688 trace_megasas_iov_write_underflow(cmd->index, len,
1689 cmd->iov_size);
1690 } else {
1691 trace_megasas_iov_read_underflow(cmd->index, len,
1692 cmd->iov_size);
1693 }
1694 cmd->iov_size = len;
1695 }
1696 scsi_req_continue(cmd->req);
1697 }
1698 return len;
1699 }
1700
1701 static int megasas_handle_scsi(MegasasState *s, MegasasCmd *cmd,
1702 int frame_cmd)
1703 {
1704 uint8_t *cdb;
1705 int target_id, lun_id, cdb_len;
1706 bool is_write;
1707 struct SCSIDevice *sdev = NULL;
1708 bool is_logical = (frame_cmd == MFI_CMD_LD_SCSI_IO);
1709
1710 cdb = cmd->frame->pass.cdb;
1711 target_id = cmd->frame->header.target_id;
1712 lun_id = cmd->frame->header.lun_id;
1713 cdb_len = cmd->frame->header.cdb_len;
1714
1715 if (is_logical) {
1716 if (target_id >= MFI_MAX_LD || lun_id != 0) {
1717 trace_megasas_scsi_target_not_present(
1718 mfi_frame_desc(frame_cmd), is_logical, target_id, lun_id);
1719 return MFI_STAT_DEVICE_NOT_FOUND;
1720 }
1721 }
1722 sdev = scsi_device_find(&s->bus, 0, target_id, lun_id);
1723
1724 cmd->iov_size = le32_to_cpu(cmd->frame->header.data_len);
1725 trace_megasas_handle_scsi(mfi_frame_desc(frame_cmd), is_logical,
1726 target_id, lun_id, sdev, cmd->iov_size);
1727
1728 if (!sdev || (megasas_is_jbod(s) && is_logical)) {
1729 trace_megasas_scsi_target_not_present(
1730 mfi_frame_desc(frame_cmd), is_logical, target_id, lun_id);
1731 return MFI_STAT_DEVICE_NOT_FOUND;
1732 }
1733
1734 if (cdb_len > 16) {
1735 trace_megasas_scsi_invalid_cdb_len(
1736 mfi_frame_desc(frame_cmd), is_logical,
1737 target_id, lun_id, cdb_len);
1738 megasas_write_sense(cmd, SENSE_CODE(INVALID_OPCODE));
1739 cmd->frame->header.scsi_status = CHECK_CONDITION;
1740 s->event_count++;
1741 return MFI_STAT_SCSI_DONE_WITH_ERROR;
1742 }
1743
1744 if (megasas_map_sgl(s, cmd, &cmd->frame->pass.sgl)) {
1745 megasas_write_sense(cmd, SENSE_CODE(TARGET_FAILURE));
1746 cmd->frame->header.scsi_status = CHECK_CONDITION;
1747 s->event_count++;
1748 return MFI_STAT_SCSI_DONE_WITH_ERROR;
1749 }
1750
1751 cmd->req = scsi_req_new(sdev, cmd->index, lun_id, cdb, cdb_len, cmd);
1752 if (!cmd->req) {
1753 trace_megasas_scsi_req_alloc_failed(
1754 mfi_frame_desc(frame_cmd), target_id, lun_id);
1755 megasas_write_sense(cmd, SENSE_CODE(NO_SENSE));
1756 cmd->frame->header.scsi_status = BUSY;
1757 s->event_count++;
1758 return MFI_STAT_SCSI_DONE_WITH_ERROR;
1759 }
1760
1761 is_write = (cmd->req->cmd.mode == SCSI_XFER_TO_DEV);
1762 if (cmd->iov_size) {
1763 if (is_write) {
1764 trace_megasas_scsi_write_start(cmd->index, cmd->iov_size);
1765 } else {
1766 trace_megasas_scsi_read_start(cmd->index, cmd->iov_size);
1767 }
1768 } else {
1769 trace_megasas_scsi_nodata(cmd->index);
1770 }
1771 megasas_enqueue_req(cmd, is_write);
1772 return MFI_STAT_INVALID_STATUS;
1773 }
1774
1775 static int megasas_handle_io(MegasasState *s, MegasasCmd *cmd, int frame_cmd)
1776 {
1777 uint32_t lba_count, lba_start_hi, lba_start_lo;
1778 uint64_t lba_start;
1779 bool is_write = (frame_cmd == MFI_CMD_LD_WRITE);
1780 uint8_t cdb[16];
1781 int len;
1782 struct SCSIDevice *sdev = NULL;
1783 int target_id, lun_id, cdb_len;
1784
1785 lba_count = le32_to_cpu(cmd->frame->io.header.data_len);
1786 lba_start_lo = le32_to_cpu(cmd->frame->io.lba_lo);
1787 lba_start_hi = le32_to_cpu(cmd->frame->io.lba_hi);
1788 lba_start = ((uint64_t)lba_start_hi << 32) | lba_start_lo;
1789
1790 target_id = cmd->frame->header.target_id;
1791 lun_id = cmd->frame->header.lun_id;
1792 cdb_len = cmd->frame->header.cdb_len;
1793
1794 if (target_id < MFI_MAX_LD && lun_id == 0) {
1795 sdev = scsi_device_find(&s->bus, 0, target_id, lun_id);
1796 }
1797
1798 trace_megasas_handle_io(cmd->index,
1799 mfi_frame_desc(frame_cmd), target_id, lun_id,
1800 (unsigned long)lba_start, (unsigned long)lba_count);
1801 if (!sdev) {
1802 trace_megasas_io_target_not_present(cmd->index,
1803 mfi_frame_desc(frame_cmd), target_id, lun_id);
1804 return MFI_STAT_DEVICE_NOT_FOUND;
1805 }
1806
1807 if (cdb_len > 16) {
1808 trace_megasas_scsi_invalid_cdb_len(
1809 mfi_frame_desc(frame_cmd), 1, target_id, lun_id, cdb_len);
1810 megasas_write_sense(cmd, SENSE_CODE(INVALID_OPCODE));
1811 cmd->frame->header.scsi_status = CHECK_CONDITION;
1812 s->event_count++;
1813 return MFI_STAT_SCSI_DONE_WITH_ERROR;
1814 }
1815
1816 cmd->iov_size = lba_count * sdev->blocksize;
1817 if (megasas_map_sgl(s, cmd, &cmd->frame->io.sgl)) {
1818 megasas_write_sense(cmd, SENSE_CODE(TARGET_FAILURE));
1819 cmd->frame->header.scsi_status = CHECK_CONDITION;
1820 s->event_count++;
1821 return MFI_STAT_SCSI_DONE_WITH_ERROR;
1822 }
1823
1824 megasas_encode_lba(cdb, lba_start, lba_count, is_write);
1825 cmd->req = scsi_req_new(sdev, cmd->index,
1826 lun_id, cdb, cdb_len, cmd);
1827 if (!cmd->req) {
1828 trace_megasas_scsi_req_alloc_failed(
1829 mfi_frame_desc(frame_cmd), target_id, lun_id);
1830 megasas_write_sense(cmd, SENSE_CODE(NO_SENSE));
1831 cmd->frame->header.scsi_status = BUSY;
1832 s->event_count++;
1833 return MFI_STAT_SCSI_DONE_WITH_ERROR;
1834 }
1835 len = megasas_enqueue_req(cmd, is_write);
1836 if (len > 0) {
1837 if (is_write) {
1838 trace_megasas_io_write_start(cmd->index, lba_start, lba_count, len);
1839 } else {
1840 trace_megasas_io_read_start(cmd->index, lba_start, lba_count, len);
1841 }
1842 }
1843 return MFI_STAT_INVALID_STATUS;
1844 }
1845
1846 static QEMUSGList *megasas_get_sg_list(SCSIRequest *req)
1847 {
1848 MegasasCmd *cmd = req->hba_private;
1849
1850 if (cmd->dcmd_opcode != -1) {
1851 return NULL;
1852 } else {
1853 return &cmd->qsg;
1854 }
1855 }
1856
1857 static void megasas_xfer_complete(SCSIRequest *req, uint32_t len)
1858 {
1859 MegasasCmd *cmd = req->hba_private;
1860 uint8_t *buf;
1861
1862 trace_megasas_io_complete(cmd->index, len);
1863
1864 if (cmd->dcmd_opcode != -1) {
1865 scsi_req_continue(req);
1866 return;
1867 }
1868
1869 buf = scsi_req_get_buf(req);
1870 if (cmd->dcmd_opcode == MFI_DCMD_PD_GET_INFO && cmd->iov_buf) {
1871 struct mfi_pd_info *info = cmd->iov_buf;
1872
1873 if (info->inquiry_data[0] == 0x7f) {
1874 memset(info->inquiry_data, 0, sizeof(info->inquiry_data));
1875 memcpy(info->inquiry_data, buf, len);
1876 } else if (info->vpd_page83[0] == 0x7f) {
1877 memset(info->vpd_page83, 0, sizeof(info->vpd_page83));
1878 memcpy(info->vpd_page83, buf, len);
1879 }
1880 scsi_req_continue(req);
1881 } else if (cmd->dcmd_opcode == MFI_DCMD_LD_GET_INFO) {
1882 struct mfi_ld_info *info = cmd->iov_buf;
1883
1884 if (cmd->iov_buf) {
1885 memcpy(info->vpd_page83, buf, sizeof(info->vpd_page83));
1886 scsi_req_continue(req);
1887 }
1888 }
1889 }
1890
1891 static void megasas_command_complete(SCSIRequest *req, size_t residual)
1892 {
1893 MegasasCmd *cmd = req->hba_private;
1894 uint8_t cmd_status = MFI_STAT_OK;
1895
1896 trace_megasas_command_complete(cmd->index, req->status, residual);
1897
1898 if (req->io_canceled) {
1899 return;
1900 }
1901
1902 if (cmd->dcmd_opcode != -1) {
1903 /*
1904 * Internal command complete
1905 */
1906 cmd_status = megasas_finish_internal_dcmd(cmd, req, residual);
1907 if (cmd_status == MFI_STAT_INVALID_STATUS) {
1908 return;
1909 }
1910 } else {
1911 trace_megasas_scsi_complete(cmd->index, req->status,
1912 cmd->iov_size, req->cmd.xfer);
1913 if (req->status != GOOD) {
1914 cmd_status = MFI_STAT_SCSI_DONE_WITH_ERROR;
1915 }
1916 if (req->status == CHECK_CONDITION) {
1917 megasas_copy_sense(cmd);
1918 }
1919
1920 cmd->frame->header.scsi_status = req->status;
1921 }
1922 cmd->frame->header.cmd_status = cmd_status;
1923 megasas_complete_command(cmd);
1924 }
1925
1926 static void megasas_command_cancelled(SCSIRequest *req)
1927 {
1928 MegasasCmd *cmd = req->hba_private;
1929
1930 if (!cmd) {
1931 return;
1932 }
1933 cmd->frame->header.cmd_status = MFI_STAT_SCSI_IO_FAILED;
1934 megasas_complete_command(cmd);
1935 }
1936
1937 static int megasas_handle_abort(MegasasState *s, MegasasCmd *cmd)
1938 {
1939 uint64_t abort_ctx = le64_to_cpu(cmd->frame->abort.abort_context);
1940 hwaddr abort_addr, addr_hi, addr_lo;
1941 MegasasCmd *abort_cmd;
1942
1943 addr_hi = le32_to_cpu(cmd->frame->abort.abort_mfi_addr_hi);
1944 addr_lo = le32_to_cpu(cmd->frame->abort.abort_mfi_addr_lo);
1945 abort_addr = ((uint64_t)addr_hi << 32) | addr_lo;
1946
1947 abort_cmd = megasas_lookup_frame(s, abort_addr);
1948 if (!abort_cmd) {
1949 trace_megasas_abort_no_cmd(cmd->index, abort_ctx);
1950 s->event_count++;
1951 return MFI_STAT_OK;
1952 }
1953 if (!megasas_use_queue64(s)) {
1954 abort_ctx &= (uint64_t)0xFFFFFFFF;
1955 }
1956 if (abort_cmd->context != abort_ctx) {
1957 trace_megasas_abort_invalid_context(cmd->index, abort_cmd->context,
1958 abort_cmd->index);
1959 s->event_count++;
1960 return MFI_STAT_ABORT_NOT_POSSIBLE;
1961 }
1962 trace_megasas_abort_frame(cmd->index, abort_cmd->index);
1963 megasas_abort_command(abort_cmd);
1964 if (!s->event_cmd || abort_cmd != s->event_cmd) {
1965 s->event_cmd = NULL;
1966 }
1967 s->event_count++;
1968 return MFI_STAT_OK;
1969 }
1970
1971 static void megasas_handle_frame(MegasasState *s, uint64_t frame_addr,
1972 uint32_t frame_count)
1973 {
1974 uint8_t frame_status = MFI_STAT_INVALID_CMD;
1975 uint64_t frame_context;
1976 int frame_cmd;
1977 MegasasCmd *cmd;
1978
1979 /*
1980 * Always read 64bit context, top bits will be
1981 * masked out if required in megasas_enqueue_frame()
1982 */
1983 frame_context = megasas_frame_get_context(s, frame_addr);
1984
1985 cmd = megasas_enqueue_frame(s, frame_addr, frame_context, frame_count);
1986 if (!cmd) {
1987 /* reply queue full */
1988 trace_megasas_frame_busy(frame_addr);
1989 megasas_frame_set_scsi_status(s, frame_addr, BUSY);
1990 megasas_frame_set_cmd_status(s, frame_addr, MFI_STAT_SCSI_DONE_WITH_ERROR);
1991 megasas_complete_frame(s, frame_context);
1992 s->event_count++;
1993 return;
1994 }
1995 frame_cmd = cmd->frame->header.frame_cmd;
1996 switch (frame_cmd) {
1997 case MFI_CMD_INIT:
1998 frame_status = megasas_init_firmware(s, cmd);
1999 break;
2000 case MFI_CMD_DCMD:
2001 frame_status = megasas_handle_dcmd(s, cmd);
2002 break;
2003 case MFI_CMD_ABORT:
2004 frame_status = megasas_handle_abort(s, cmd);
2005 break;
2006 case MFI_CMD_PD_SCSI_IO:
2007 case MFI_CMD_LD_SCSI_IO:
2008 frame_status = megasas_handle_scsi(s, cmd, frame_cmd);
2009 break;
2010 case MFI_CMD_LD_READ:
2011 case MFI_CMD_LD_WRITE:
2012 frame_status = megasas_handle_io(s, cmd, frame_cmd);
2013 break;
2014 default:
2015 trace_megasas_unhandled_frame_cmd(cmd->index, frame_cmd);
2016 s->event_count++;
2017 break;
2018 }
2019 if (frame_status != MFI_STAT_INVALID_STATUS) {
2020 if (cmd->frame) {
2021 cmd->frame->header.cmd_status = frame_status;
2022 } else {
2023 megasas_frame_set_cmd_status(s, frame_addr, frame_status);
2024 }
2025 megasas_unmap_frame(s, cmd);
2026 megasas_complete_frame(s, cmd->context);
2027 }
2028 }
2029
2030 static uint64_t megasas_mmio_read(void *opaque, hwaddr addr,
2031 unsigned size)
2032 {
2033 MegasasState *s = opaque;
2034 PCIDevice *pci_dev = PCI_DEVICE(s);
2035 MegasasBaseClass *base_class = MEGASAS_GET_CLASS(s);
2036 uint32_t retval = 0;
2037
2038 switch (addr) {
2039 case MFI_IDB:
2040 retval = 0;
2041 trace_megasas_mmio_readl("MFI_IDB", retval);
2042 break;
2043 case MFI_OMSG0:
2044 case MFI_OSP0:
2045 retval = (msix_present(pci_dev) ? MFI_FWSTATE_MSIX_SUPPORTED : 0) |
2046 (s->fw_state & MFI_FWSTATE_MASK) |
2047 ((s->fw_sge & 0xff) << 16) |
2048 (s->fw_cmds & 0xFFFF);
2049 trace_megasas_mmio_readl(addr == MFI_OMSG0 ? "MFI_OMSG0" : "MFI_OSP0",
2050 retval);
2051 break;
2052 case MFI_OSTS:
2053 if (megasas_intr_enabled(s) && s->doorbell) {
2054 retval = base_class->osts;
2055 }
2056 trace_megasas_mmio_readl("MFI_OSTS", retval);
2057 break;
2058 case MFI_OMSK:
2059 retval = s->intr_mask;
2060 trace_megasas_mmio_readl("MFI_OMSK", retval);
2061 break;
2062 case MFI_ODCR0:
2063 retval = s->doorbell ? 1 : 0;
2064 trace_megasas_mmio_readl("MFI_ODCR0", retval);
2065 break;
2066 case MFI_DIAG:
2067 retval = s->diag;
2068 trace_megasas_mmio_readl("MFI_DIAG", retval);
2069 break;
2070 case MFI_OSP1:
2071 retval = 15;
2072 trace_megasas_mmio_readl("MFI_OSP1", retval);
2073 break;
2074 default:
2075 trace_megasas_mmio_invalid_readl(addr);
2076 break;
2077 }
2078 return retval;
2079 }
2080
2081 static int adp_reset_seq[] = {0x00, 0x04, 0x0b, 0x02, 0x07, 0x0d};
2082
2083 static void megasas_mmio_write(void *opaque, hwaddr addr,
2084 uint64_t val, unsigned size)
2085 {
2086 MegasasState *s = opaque;
2087 PCIDevice *pci_dev = PCI_DEVICE(s);
2088 uint64_t frame_addr;
2089 uint32_t frame_count;
2090 int i;
2091
2092 switch (addr) {
2093 case MFI_IDB:
2094 trace_megasas_mmio_writel("MFI_IDB", val);
2095 if (val & MFI_FWINIT_ABORT) {
2096 /* Abort all pending cmds */
2097 for (i = 0; i < s->fw_cmds; i++) {
2098 megasas_abort_command(&s->frames[i]);
2099 }
2100 }
2101 if (val & MFI_FWINIT_READY) {
2102 /* move to FW READY */
2103 megasas_soft_reset(s);
2104 }
2105 if (val & MFI_FWINIT_MFIMODE) {
2106 /* discard MFIs */
2107 }
2108 if (val & MFI_FWINIT_STOP_ADP) {
2109 /* Terminal error, stop processing */
2110 s->fw_state = MFI_FWSTATE_FAULT;
2111 }
2112 break;
2113 case MFI_OMSK:
2114 trace_megasas_mmio_writel("MFI_OMSK", val);
2115 s->intr_mask = val;
2116 if (!megasas_intr_enabled(s) &&
2117 !msi_enabled(pci_dev) &&
2118 !msix_enabled(pci_dev)) {
2119 trace_megasas_irq_lower();
2120 pci_irq_deassert(pci_dev);
2121 }
2122 if (megasas_intr_enabled(s)) {
2123 if (msix_enabled(pci_dev)) {
2124 trace_megasas_msix_enabled(0);
2125 } else if (msi_enabled(pci_dev)) {
2126 trace_megasas_msi_enabled(0);
2127 } else {
2128 trace_megasas_intr_enabled();
2129 }
2130 } else {
2131 trace_megasas_intr_disabled();
2132 megasas_soft_reset(s);
2133 }
2134 break;
2135 case MFI_ODCR0:
2136 trace_megasas_mmio_writel("MFI_ODCR0", val);
2137 s->doorbell = 0;
2138 if (megasas_intr_enabled(s)) {
2139 if (!msix_enabled(pci_dev) && !msi_enabled(pci_dev)) {
2140 trace_megasas_irq_lower();
2141 pci_irq_deassert(pci_dev);
2142 }
2143 }
2144 break;
2145 case MFI_IQPH:
2146 trace_megasas_mmio_writel("MFI_IQPH", val);
2147 /* Received high 32 bits of a 64 bit MFI frame address */
2148 s->frame_hi = val;
2149 break;
2150 case MFI_IQPL:
2151 trace_megasas_mmio_writel("MFI_IQPL", val);
2152 /* Received low 32 bits of a 64 bit MFI frame address */
2153 /* Fallthrough */
2154 case MFI_IQP:
2155 if (addr == MFI_IQP) {
2156 trace_megasas_mmio_writel("MFI_IQP", val);
2157 /* Received 64 bit MFI frame address */
2158 s->frame_hi = 0;
2159 }
2160 frame_addr = (val & ~0x1F);
2161 /* Add possible 64 bit offset */
2162 frame_addr |= ((uint64_t)s->frame_hi << 32);
2163 s->frame_hi = 0;
2164 frame_count = (val >> 1) & 0xF;
2165 megasas_handle_frame(s, frame_addr, frame_count);
2166 break;
2167 case MFI_SEQ:
2168 trace_megasas_mmio_writel("MFI_SEQ", val);
2169 /* Magic sequence to start ADP reset */
2170 if (adp_reset_seq[s->adp_reset++] == val) {
2171 if (s->adp_reset == 6) {
2172 s->adp_reset = 0;
2173 s->diag = MFI_DIAG_WRITE_ENABLE;
2174 }
2175 } else {
2176 s->adp_reset = 0;
2177 s->diag = 0;
2178 }
2179 break;
2180 case MFI_DIAG:
2181 trace_megasas_mmio_writel("MFI_DIAG", val);
2182 /* ADP reset */
2183 if ((s->diag & MFI_DIAG_WRITE_ENABLE) &&
2184 (val & MFI_DIAG_RESET_ADP)) {
2185 s->diag |= MFI_DIAG_RESET_ADP;
2186 megasas_soft_reset(s);
2187 s->adp_reset = 0;
2188 s->diag = 0;
2189 }
2190 break;
2191 default:
2192 trace_megasas_mmio_invalid_writel(addr, val);
2193 break;
2194 }
2195 }
2196
2197 static const MemoryRegionOps megasas_mmio_ops = {
2198 .read = megasas_mmio_read,
2199 .write = megasas_mmio_write,
2200 .endianness = DEVICE_LITTLE_ENDIAN,
2201 .impl = {
2202 .min_access_size = 8,
2203 .max_access_size = 8,
2204 }
2205 };
2206
2207 static uint64_t megasas_port_read(void *opaque, hwaddr addr,
2208 unsigned size)
2209 {
2210 return megasas_mmio_read(opaque, addr & 0xff, size);
2211 }
2212
2213 static void megasas_port_write(void *opaque, hwaddr addr,
2214 uint64_t val, unsigned size)
2215 {
2216 megasas_mmio_write(opaque, addr & 0xff, val, size);
2217 }
2218
2219 static const MemoryRegionOps megasas_port_ops = {
2220 .read = megasas_port_read,
2221 .write = megasas_port_write,
2222 .endianness = DEVICE_LITTLE_ENDIAN,
2223 .impl = {
2224 .min_access_size = 4,
2225 .max_access_size = 4,
2226 }
2227 };
2228
2229 static uint64_t megasas_queue_read(void *opaque, hwaddr addr,
2230 unsigned size)
2231 {
2232 return 0;
2233 }
2234
2235 static void megasas_queue_write(void *opaque, hwaddr addr,
2236 uint64_t val, unsigned size)
2237 {
2238 return;
2239 }
2240
2241 static const MemoryRegionOps megasas_queue_ops = {
2242 .read = megasas_queue_read,
2243 .write = megasas_queue_write,
2244 .endianness = DEVICE_LITTLE_ENDIAN,
2245 .impl = {
2246 .min_access_size = 8,
2247 .max_access_size = 8,
2248 }
2249 };
2250
2251 static void megasas_soft_reset(MegasasState *s)
2252 {
2253 int i;
2254 MegasasCmd *cmd;
2255
2256 trace_megasas_reset(s->fw_state);
2257 for (i = 0; i < s->fw_cmds; i++) {
2258 cmd = &s->frames[i];
2259 megasas_abort_command(cmd);
2260 }
2261 if (s->fw_state == MFI_FWSTATE_READY) {
2262 BusChild *kid;
2263
2264 /*
2265 * The EFI firmware doesn't handle UA,
2266 * so we need to clear the Power On/Reset UA
2267 * after the initial reset.
2268 */
2269 QTAILQ_FOREACH(kid, &s->bus.qbus.children, sibling) {
2270 SCSIDevice *sdev = SCSI_DEVICE(kid->child);
2271
2272 sdev->unit_attention = SENSE_CODE(NO_SENSE);
2273 scsi_device_unit_attention_reported(sdev);
2274 }
2275 }
2276 megasas_reset_frames(s);
2277 s->reply_queue_len = s->fw_cmds;
2278 s->reply_queue_pa = 0;
2279 s->consumer_pa = 0;
2280 s->producer_pa = 0;
2281 s->fw_state = MFI_FWSTATE_READY;
2282 s->doorbell = 0;
2283 s->intr_mask = MEGASAS_INTR_DISABLED_MASK;
2284 s->frame_hi = 0;
2285 s->flags &= ~MEGASAS_MASK_USE_QUEUE64;
2286 s->event_count++;
2287 s->boot_event = s->event_count;
2288 }
2289
2290 static void megasas_scsi_reset(DeviceState *dev)
2291 {
2292 MegasasState *s = MEGASAS(dev);
2293
2294 megasas_soft_reset(s);
2295 }
2296
2297 static const VMStateDescription vmstate_megasas_gen1 = {
2298 .name = "megasas",
2299 .version_id = 0,
2300 .minimum_version_id = 0,
2301 .fields = (VMStateField[]) {
2302 VMSTATE_PCI_DEVICE(parent_obj, MegasasState),
2303 VMSTATE_MSIX(parent_obj, MegasasState),
2304
2305 VMSTATE_UINT32(fw_state, MegasasState),
2306 VMSTATE_UINT32(intr_mask, MegasasState),
2307 VMSTATE_UINT32(doorbell, MegasasState),
2308 VMSTATE_UINT64(reply_queue_pa, MegasasState),
2309 VMSTATE_UINT64(consumer_pa, MegasasState),
2310 VMSTATE_UINT64(producer_pa, MegasasState),
2311 VMSTATE_END_OF_LIST()
2312 }
2313 };
2314
2315 static const VMStateDescription vmstate_megasas_gen2 = {
2316 .name = "megasas-gen2",
2317 .version_id = 0,
2318 .minimum_version_id = 0,
2319 .fields = (VMStateField[]) {
2320 VMSTATE_PCI_DEVICE(parent_obj, MegasasState),
2321 VMSTATE_MSIX(parent_obj, MegasasState),
2322
2323 VMSTATE_UINT32(fw_state, MegasasState),
2324 VMSTATE_UINT32(intr_mask, MegasasState),
2325 VMSTATE_UINT32(doorbell, MegasasState),
2326 VMSTATE_UINT64(reply_queue_pa, MegasasState),
2327 VMSTATE_UINT64(consumer_pa, MegasasState),
2328 VMSTATE_UINT64(producer_pa, MegasasState),
2329 VMSTATE_END_OF_LIST()
2330 }
2331 };
2332
2333 static void megasas_scsi_uninit(PCIDevice *d)
2334 {
2335 MegasasState *s = MEGASAS(d);
2336
2337 if (megasas_use_msix(s)) {
2338 msix_uninit(d, &s->mmio_io, &s->mmio_io);
2339 }
2340 msi_uninit(d);
2341 }
2342
2343 static const struct SCSIBusInfo megasas_scsi_info = {
2344 .tcq = true,
2345 .max_target = MFI_MAX_LD,
2346 .max_lun = 255,
2347
2348 .transfer_data = megasas_xfer_complete,
2349 .get_sg_list = megasas_get_sg_list,
2350 .complete = megasas_command_complete,
2351 .cancel = megasas_command_cancelled,
2352 };
2353
2354 static void megasas_scsi_realize(PCIDevice *dev, Error **errp)
2355 {
2356 MegasasState *s = MEGASAS(dev);
2357 MegasasBaseClass *b = MEGASAS_GET_CLASS(s);
2358 uint8_t *pci_conf;
2359 int i, bar_type;
2360 Error *err = NULL;
2361 int ret;
2362
2363 pci_conf = dev->config;
2364
2365 /* PCI latency timer = 0 */
2366 pci_conf[PCI_LATENCY_TIMER] = 0;
2367 /* Interrupt pin 1 */
2368 pci_conf[PCI_INTERRUPT_PIN] = 0x01;
2369
2370 if (s->msi != ON_OFF_AUTO_OFF) {
2371 ret = msi_init(dev, 0x50, 1, true, false, &err);
2372 /* Any error other than -ENOTSUP(board's MSI support is broken)
2373 * is a programming error */
2374 assert(!ret || ret == -ENOTSUP);
2375 if (ret && s->msi == ON_OFF_AUTO_ON) {
2376 /* Can't satisfy user's explicit msi=on request, fail */
2377 error_append_hint(&err, "You have to use msi=auto (default) or "
2378 "msi=off with this machine type.\n");
2379 error_propagate(errp, err);
2380 return;
2381 } else if (ret) {
2382 /* With msi=auto, we fall back to MSI off silently */
2383 s->msi = ON_OFF_AUTO_OFF;
2384 error_free(err);
2385 }
2386 }
2387
2388 memory_region_init_io(&s->mmio_io, OBJECT(s), &megasas_mmio_ops, s,
2389 "megasas-mmio", 0x4000);
2390 memory_region_init_io(&s->port_io, OBJECT(s), &megasas_port_ops, s,
2391 "megasas-io", 256);
2392 memory_region_init_io(&s->queue_io, OBJECT(s), &megasas_queue_ops, s,
2393 "megasas-queue", 0x40000);
2394
2395 if (megasas_use_msix(s) &&
2396 msix_init(dev, 15, &s->mmio_io, b->mmio_bar, 0x2000,
2397 &s->mmio_io, b->mmio_bar, 0x3800, 0x68, NULL)) {
2398 /* TODO: check msix_init's error, and should fail on msix=on */
2399 s->msix = ON_OFF_AUTO_OFF;
2400 }
2401
2402 if (pci_is_express(dev)) {
2403 pcie_endpoint_cap_init(dev, 0xa0);
2404 }
2405
2406 bar_type = PCI_BASE_ADDRESS_SPACE_MEMORY | PCI_BASE_ADDRESS_MEM_TYPE_64;
2407 pci_register_bar(dev, b->ioport_bar,
2408 PCI_BASE_ADDRESS_SPACE_IO, &s->port_io);
2409 pci_register_bar(dev, b->mmio_bar, bar_type, &s->mmio_io);
2410 pci_register_bar(dev, 3, bar_type, &s->queue_io);
2411
2412 if (megasas_use_msix(s)) {
2413 msix_vector_use(dev, 0);
2414 }
2415
2416 s->fw_state = MFI_FWSTATE_READY;
2417 if (!s->sas_addr) {
2418 s->sas_addr = ((NAA_LOCALLY_ASSIGNED_ID << 24) |
2419 IEEE_COMPANY_LOCALLY_ASSIGNED) << 36;
2420 s->sas_addr |= pci_dev_bus_num(dev) << 16;
2421 s->sas_addr |= PCI_SLOT(dev->devfn) << 8;
2422 s->sas_addr |= PCI_FUNC(dev->devfn);
2423 }
2424 if (!s->hba_serial) {
2425 s->hba_serial = g_strdup(MEGASAS_HBA_SERIAL);
2426 }
2427 if (s->fw_sge >= MEGASAS_MAX_SGE - MFI_PASS_FRAME_SIZE) {
2428 s->fw_sge = MEGASAS_MAX_SGE - MFI_PASS_FRAME_SIZE;
2429 } else if (s->fw_sge >= 128 - MFI_PASS_FRAME_SIZE) {
2430 s->fw_sge = 128 - MFI_PASS_FRAME_SIZE;
2431 } else {
2432 s->fw_sge = 64 - MFI_PASS_FRAME_SIZE;
2433 }
2434 if (s->fw_cmds > MEGASAS_MAX_FRAMES) {
2435 s->fw_cmds = MEGASAS_MAX_FRAMES;
2436 }
2437 trace_megasas_init(s->fw_sge, s->fw_cmds,
2438 megasas_is_jbod(s) ? "jbod" : "raid");
2439
2440 if (megasas_is_jbod(s)) {
2441 s->fw_luns = MFI_MAX_SYS_PDS;
2442 } else {
2443 s->fw_luns = MFI_MAX_LD;
2444 }
2445 s->producer_pa = 0;
2446 s->consumer_pa = 0;
2447 for (i = 0; i < s->fw_cmds; i++) {
2448 s->frames[i].index = i;
2449 s->frames[i].context = -1;
2450 s->frames[i].pa = 0;
2451 s->frames[i].state = s;
2452 }
2453
2454 scsi_bus_init(&s->bus, sizeof(s->bus), DEVICE(dev), &megasas_scsi_info);
2455 }
2456
2457 static Property megasas_properties_gen1[] = {
2458 DEFINE_PROP_UINT32("max_sge", MegasasState, fw_sge,
2459 MEGASAS_DEFAULT_SGE),
2460 DEFINE_PROP_UINT32("max_cmds", MegasasState, fw_cmds,
2461 MEGASAS_DEFAULT_FRAMES),
2462 DEFINE_PROP_STRING("hba_serial", MegasasState, hba_serial),
2463 DEFINE_PROP_UINT64("sas_address", MegasasState, sas_addr, 0),
2464 DEFINE_PROP_ON_OFF_AUTO("msi", MegasasState, msi, ON_OFF_AUTO_AUTO),
2465 DEFINE_PROP_ON_OFF_AUTO("msix", MegasasState, msix, ON_OFF_AUTO_AUTO),
2466 DEFINE_PROP_BIT("use_jbod", MegasasState, flags,
2467 MEGASAS_FLAG_USE_JBOD, false),
2468 DEFINE_PROP_END_OF_LIST(),
2469 };
2470
2471 static Property megasas_properties_gen2[] = {
2472 DEFINE_PROP_UINT32("max_sge", MegasasState, fw_sge,
2473 MEGASAS_DEFAULT_SGE),
2474 DEFINE_PROP_UINT32("max_cmds", MegasasState, fw_cmds,
2475 MEGASAS_GEN2_DEFAULT_FRAMES),
2476 DEFINE_PROP_STRING("hba_serial", MegasasState, hba_serial),
2477 DEFINE_PROP_UINT64("sas_address", MegasasState, sas_addr, 0),
2478 DEFINE_PROP_ON_OFF_AUTO("msi", MegasasState, msi, ON_OFF_AUTO_AUTO),
2479 DEFINE_PROP_ON_OFF_AUTO("msix", MegasasState, msix, ON_OFF_AUTO_AUTO),
2480 DEFINE_PROP_BIT("use_jbod", MegasasState, flags,
2481 MEGASAS_FLAG_USE_JBOD, false),
2482 DEFINE_PROP_END_OF_LIST(),
2483 };
2484
2485 typedef struct MegasasInfo {
2486 const char *name;
2487 const char *desc;
2488 const char *product_name;
2489 const char *product_version;
2490 uint16_t device_id;
2491 uint16_t subsystem_id;
2492 int ioport_bar;
2493 int mmio_bar;
2494 int osts;
2495 const VMStateDescription *vmsd;
2496 Property *props;
2497 InterfaceInfo *interfaces;
2498 } MegasasInfo;
2499
2500 static struct MegasasInfo megasas_devices[] = {
2501 {
2502 .name = TYPE_MEGASAS_GEN1,
2503 .desc = "LSI MegaRAID SAS 1078",
2504 .product_name = "LSI MegaRAID SAS 8708EM2",
2505 .product_version = MEGASAS_VERSION_GEN1,
2506 .device_id = PCI_DEVICE_ID_LSI_SAS1078,
2507 .subsystem_id = 0x1013,
2508 .ioport_bar = 2,
2509 .mmio_bar = 0,
2510 .osts = MFI_1078_RM | 1,
2511 .vmsd = &vmstate_megasas_gen1,
2512 .props = megasas_properties_gen1,
2513 .interfaces = (InterfaceInfo[]) {
2514 { INTERFACE_CONVENTIONAL_PCI_DEVICE },
2515 { },
2516 },
2517 },{
2518 .name = TYPE_MEGASAS_GEN2,
2519 .desc = "LSI MegaRAID SAS 2108",
2520 .product_name = "LSI MegaRAID SAS 9260-8i",
2521 .product_version = MEGASAS_VERSION_GEN2,
2522 .device_id = PCI_DEVICE_ID_LSI_SAS0079,
2523 .subsystem_id = 0x9261,
2524 .ioport_bar = 0,
2525 .mmio_bar = 1,
2526 .osts = MFI_GEN2_RM,
2527 .vmsd = &vmstate_megasas_gen2,
2528 .props = megasas_properties_gen2,
2529 .interfaces = (InterfaceInfo[]) {
2530 { INTERFACE_PCIE_DEVICE },
2531 { }
2532 },
2533 }
2534 };
2535
2536 static void megasas_class_init(ObjectClass *oc, void *data)
2537 {
2538 DeviceClass *dc = DEVICE_CLASS(oc);
2539 PCIDeviceClass *pc = PCI_DEVICE_CLASS(oc);
2540 MegasasBaseClass *e = MEGASAS_CLASS(oc);
2541 const MegasasInfo *info = data;
2542
2543 pc->realize = megasas_scsi_realize;
2544 pc->exit = megasas_scsi_uninit;
2545 pc->vendor_id = PCI_VENDOR_ID_LSI_LOGIC;
2546 pc->device_id = info->device_id;
2547 pc->subsystem_vendor_id = PCI_VENDOR_ID_LSI_LOGIC;
2548 pc->subsystem_id = info->subsystem_id;
2549 pc->class_id = PCI_CLASS_STORAGE_RAID;
2550 e->mmio_bar = info->mmio_bar;
2551 e->ioport_bar = info->ioport_bar;
2552 e->osts = info->osts;
2553 e->product_name = info->product_name;
2554 e->product_version = info->product_version;
2555 device_class_set_props(dc, info->props);
2556 dc->reset = megasas_scsi_reset;
2557 dc->vmsd = info->vmsd;
2558 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
2559 dc->desc = info->desc;
2560 }
2561
2562 static const TypeInfo megasas_info = {
2563 .name = TYPE_MEGASAS_BASE,
2564 .parent = TYPE_PCI_DEVICE,
2565 .instance_size = sizeof(MegasasState),
2566 .class_size = sizeof(MegasasBaseClass),
2567 .abstract = true,
2568 };
2569
2570 static void megasas_register_types(void)
2571 {
2572 int i;
2573
2574 type_register_static(&megasas_info);
2575 for (i = 0; i < ARRAY_SIZE(megasas_devices); i++) {
2576 const MegasasInfo *info = &megasas_devices[i];
2577 TypeInfo type_info = {};
2578
2579 type_info.name = info->name;
2580 type_info.parent = TYPE_MEGASAS_BASE;
2581 type_info.class_data = (void *)info;
2582 type_info.class_init = megasas_class_init;
2583 type_info.interfaces = info->interfaces;
2584
2585 type_register(&type_info);
2586 }
2587 }
2588
2589 type_init(megasas_register_types)
armbru's QEMU hackery