1 /*-
2 * Redistribution and use in source and binary forms, with or without
3 * modification, are permitted provided that the following conditions
4 * are met:
5 *
6 * Copyright 1994-2009 The FreeBSD Project.
7 * All rights reserved.
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE FREEBSD PROJECT``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
17 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
18 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FREEBSD PROJECT OR
19 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
20 * EXEMPLARY,OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
22 * PROFITS; OR BUSINESS INTERRUPTION)HOWEVER CAUSED AND ON ANY THEORY
23 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
24 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 *
27 * The views and conclusions contained in the software and documentation
28 * are those of the authors and should not be interpreted as representing
29 * official policies,either expressed or implied, of the FreeBSD Project.
30 */
31
32
33 #include <sys/cdefs.h>
34 __FBSDID("$FreeBSD: releng/10.0/sys/dev/mfi/mfi_tbolt.c 247369 2013-02-27 02:21:10Z smh $");
35
36 #include "opt_mfi.h"
37
38 #include <sys/param.h>
39 #include <sys/types.h>
40 #include <sys/kernel.h>
41 #include <sys/selinfo.h>
42 #include <sys/bus.h>
43 #include <sys/conf.h>
44 #include <sys/bio.h>
45 #include <sys/ioccom.h>
46 #include <sys/eventhandler.h>
47 #include <sys/callout.h>
48 #include <sys/uio.h>
49 #include <machine/bus.h>
50 #include <sys/sysctl.h>
51 #include <sys/systm.h>
52 #include <sys/malloc.h>
53
54 #include <dev/mfi/mfireg.h>
55 #include <dev/mfi/mfi_ioctl.h>
56 #include <dev/mfi/mfivar.h>
57
58 struct mfi_cmd_tbolt *mfi_tbolt_get_cmd(struct mfi_softc *sc, struct mfi_command *);
59 union mfi_mpi2_request_descriptor *
60 mfi_tbolt_get_request_descriptor(struct mfi_softc *sc, uint16_t index);
61 void mfi_tbolt_complete_cmd(struct mfi_softc *sc);
62 int mfi_tbolt_build_io(struct mfi_softc *sc, struct mfi_command *mfi_cmd,
63 struct mfi_cmd_tbolt *cmd);
64 union mfi_mpi2_request_descriptor *mfi_tbolt_build_mpt_cmd(struct mfi_softc
65 *sc, struct mfi_command *cmd);
66 uint8_t
67 mfi_build_mpt_pass_thru(struct mfi_softc *sc, struct mfi_command *mfi_cmd);
68 union mfi_mpi2_request_descriptor *mfi_build_and_issue_cmd(struct mfi_softc
69 *sc, struct mfi_command *mfi_cmd);
70 void mfi_tbolt_build_ldio(struct mfi_softc *sc, struct mfi_command *mfi_cmd,
71 struct mfi_cmd_tbolt *cmd);
72 static int mfi_tbolt_make_sgl(struct mfi_softc *sc, struct mfi_command
73 *mfi_cmd, pMpi25IeeeSgeChain64_t sgl_ptr, struct mfi_cmd_tbolt *cmd);
74 void
75 map_tbolt_cmd_status(struct mfi_command *mfi_cmd, uint8_t status,
76 uint8_t ext_status);
77 static void mfi_issue_pending_cmds_again (struct mfi_softc *sc);
78 static void mfi_kill_hba (struct mfi_softc *sc);
79 static void mfi_process_fw_state_chg_isr(void *arg);
80 static void mfi_sync_map_complete(struct mfi_command *);
81 static void mfi_queue_map_sync(struct mfi_softc *sc);
82
83 #define MFI_FUSION_ENABLE_INTERRUPT_MASK (0x00000008)
84
85
86 extern int mfi_polled_cmd_timeout;
87 static int mfi_fw_reset_test = 0;
88 #ifdef MFI_DEBUG
89 TUNABLE_INT("hw.mfi.fw_reset_test", &mfi_fw_reset_test);
90 SYSCTL_INT(_hw_mfi, OID_AUTO, fw_reset_test, CTLFLAG_RWTUN, &mfi_fw_reset_test,
91 0, "Force a firmware reset condition");
92 #endif
93
94 void
95 mfi_tbolt_enable_intr_ppc(struct mfi_softc *sc)
96 {
97 MFI_WRITE4(sc, MFI_OMSK, ~MFI_FUSION_ENABLE_INTERRUPT_MASK);
98 MFI_READ4(sc, MFI_OMSK);
99 }
100
101 void
102 mfi_tbolt_disable_intr_ppc(struct mfi_softc *sc)
103 {
104 MFI_WRITE4(sc, MFI_OMSK, 0xFFFFFFFF);
105 MFI_READ4(sc, MFI_OMSK);
106 }
107
108 int32_t
109 mfi_tbolt_read_fw_status_ppc(struct mfi_softc *sc)
110 {
111 return MFI_READ4(sc, MFI_OSP0);
112 }
113
114 int32_t
115 mfi_tbolt_check_clear_intr_ppc(struct mfi_softc *sc)
116 {
117 int32_t status, mfi_status = 0;
118
119 status = MFI_READ4(sc, MFI_OSTS);
120
121 if (status & 1) {
122 MFI_WRITE4(sc, MFI_OSTS, status);
123 MFI_READ4(sc, MFI_OSTS);
124 if (status & MFI_STATE_CHANGE_INTERRUPT) {
125 mfi_status |= MFI_FIRMWARE_STATE_CHANGE;
126 }
127
128 return mfi_status;
129 }
130 if (!(status & MFI_FUSION_ENABLE_INTERRUPT_MASK))
131 return 1;
132
133 MFI_READ4(sc, MFI_OSTS);
134 return 0;
135 }
136
137
138 void
139 mfi_tbolt_issue_cmd_ppc(struct mfi_softc *sc, bus_addr_t bus_add,
140 uint32_t frame_cnt)
141 {
142 bus_add |= (MFI_REQ_DESCRIPT_FLAGS_MFA
143 << MFI_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
144 MFI_WRITE4(sc, MFI_IQPL, (uint32_t)bus_add);
145 MFI_WRITE4(sc, MFI_IQPH, (uint32_t)((uint64_t)bus_add >> 32));
146 }
147
148 /*
149 * mfi_tbolt_adp_reset - For controller reset
150 * @regs: MFI register set
151 */
152 int
153 mfi_tbolt_adp_reset(struct mfi_softc *sc)
154 {
155 int retry = 0, i = 0;
156 int HostDiag;
157
158 MFI_WRITE4(sc, MFI_WSR, 0xF);
159 MFI_WRITE4(sc, MFI_WSR, 4);
160 MFI_WRITE4(sc, MFI_WSR, 0xB);
161 MFI_WRITE4(sc, MFI_WSR, 2);
162 MFI_WRITE4(sc, MFI_WSR, 7);
163 MFI_WRITE4(sc, MFI_WSR, 0xD);
164
165 for (i = 0; i < 10000; i++) ;
166
167 HostDiag = (uint32_t)MFI_READ4(sc, MFI_HDR);
168
169 while (!( HostDiag & DIAG_WRITE_ENABLE)) {
170 for (i = 0; i < 1000; i++);
171 HostDiag = (uint32_t)MFI_READ4(sc, MFI_HDR);
172 device_printf(sc->mfi_dev, "ADP_RESET_TBOLT: retry time=%d, "
173 "hostdiag=%#x\n", retry, HostDiag);
174
175 if (retry++ >= 100)
176 return 1;
177 }
178
179 device_printf(sc->mfi_dev, "ADP_RESET_TBOLT: HostDiag=%#x\n", HostDiag);
180
181 MFI_WRITE4(sc, MFI_HDR, (HostDiag | DIAG_RESET_ADAPTER));
182
183 for (i=0; i < 10; i++) {
184 for (i = 0; i < 10000; i++);
185 }
186
187 HostDiag = (uint32_t)MFI_READ4(sc, MFI_RSR);
188 while (HostDiag & DIAG_RESET_ADAPTER) {
189 for (i = 0; i < 1000; i++) ;
190 HostDiag = (uint32_t)MFI_READ4(sc, MFI_RSR);
191 device_printf(sc->mfi_dev, "ADP_RESET_TBOLT: retry time=%d, "
192 "hostdiag=%#x\n", retry, HostDiag);
193
194 if (retry++ >= 1000)
195 return 1;
196 }
197 return 0;
198 }
199
200 /*
201 * This routine initialize Thunderbolt specific device information
202 */
203 void
204 mfi_tbolt_init_globals(struct mfi_softc *sc)
205 {
206 /* Initialize single reply size and Message size */
207 sc->reply_size = MEGASAS_THUNDERBOLT_REPLY_SIZE;
208 sc->raid_io_msg_size = MEGASAS_THUNDERBOLT_NEW_MSG_SIZE;
209
210 /*
211 * Calculating how many SGEs allowed in a allocated main message
212 * (size of the Message - Raid SCSI IO message size(except SGE))
213 * / size of SGE
214 * (0x100 - (0x90 - 0x10)) / 0x10 = 8
215 */
216 sc->max_SGEs_in_main_message =
217 (uint8_t)((sc->raid_io_msg_size
218 - (sizeof(struct mfi_mpi2_request_raid_scsi_io)
219 - sizeof(MPI2_SGE_IO_UNION))) / sizeof(MPI2_SGE_IO_UNION));
220 /*
221 * (Command frame size allocaed in SRB ext - Raid SCSI IO message size)
222 * / size of SGL ;
223 * (1280 - 256) / 16 = 64
224 */
225 sc->max_SGEs_in_chain_message = (MR_COMMAND_SIZE
226 - sc->raid_io_msg_size) / sizeof(MPI2_SGE_IO_UNION);
227 /*
228 * (0x08-1) + 0x40 = 0x47 - 0x01 = 0x46 one is left for command
229 * colscing
230 */
231 sc->mfi_max_sge = (sc->max_SGEs_in_main_message - 1)
232 + sc->max_SGEs_in_chain_message - 1;
233 /*
234 * This is the offset in number of 4 * 32bit words to the next chain
235 * (0x100 - 0x10)/0x10 = 0xF(15)
236 */
237 sc->chain_offset_value_for_main_message = (sc->raid_io_msg_size
238 - sizeof(MPI2_SGE_IO_UNION))/16;
239 sc->chain_offset_value_for_mpt_ptmsg
240 = offsetof(struct mfi_mpi2_request_raid_scsi_io, SGL)/16;
241 sc->mfi_cmd_pool_tbolt = NULL;
242 sc->request_desc_pool = NULL;
243 }
244
245 /*
246 * This function calculates the memory requirement for Thunderbolt
247 * controller, returns the total required memory in bytes
248 */
249
250 uint32_t
251 mfi_tbolt_get_memory_requirement(struct mfi_softc *sc)
252 {
253 uint32_t size;
254 size = MEGASAS_THUNDERBOLT_MSG_ALLIGNMENT; /* for Alignment */
255 size += sc->raid_io_msg_size * (sc->mfi_max_fw_cmds + 1);
256 size += sc->reply_size * sc->mfi_max_fw_cmds;
257 /* this is for SGL's */
258 size += MEGASAS_MAX_SZ_CHAIN_FRAME * sc->mfi_max_fw_cmds;
259 return size;
260 }
261
262 /*
263 * Description:
264 * This function will prepare message pools for the Thunderbolt controller
265 * Arguments:
266 * DevExt - HBA miniport driver's adapter data storage structure
267 * pMemLocation - start of the memory allocated for Thunderbolt.
268 * Return Value:
269 * TRUE if successful
270 * FALSE if failed
271 */
272 int
273 mfi_tbolt_init_desc_pool(struct mfi_softc *sc, uint8_t* mem_location,
274 uint32_t tbolt_contg_length)
275 {
276 uint32_t offset = 0;
277 uint8_t *addr = mem_location;
278
279 /* Request Descriptor Base physical Address */
280
281 /* For Request Decriptors Virtual Memory */
282 /* Initialise the aligned IO Frames Virtual Memory Pointer */
283 if (((uintptr_t)addr) & (0xFF)) {
284 addr = &addr[sc->raid_io_msg_size];
285 addr = (uint8_t *)((uintptr_t)addr & (~0xFF));
286 sc->request_message_pool_align = addr;
287 } else
288 sc->request_message_pool_align = addr;
289
290 offset = sc->request_message_pool_align - sc->request_message_pool;
291 sc->request_msg_busaddr = sc->mfi_tb_busaddr + offset;
292
293 /* DJA XXX should this be bus dma ??? */
294 /* Skip request message pool */
295 addr = &addr[sc->raid_io_msg_size * (sc->mfi_max_fw_cmds + 1)];
296 /* Reply Frame Pool is initialized */
297 sc->reply_frame_pool = (struct mfi_mpi2_reply_header *) addr;
298 if (((uintptr_t)addr) & (0xFF)) {
299 addr = &addr[sc->reply_size];
300 addr = (uint8_t *)((uintptr_t)addr & (~0xFF));
301 }
302 sc->reply_frame_pool_align
303 = (struct mfi_mpi2_reply_header *)addr;
304
305 offset = (uintptr_t)sc->reply_frame_pool_align
306 - (uintptr_t)sc->request_message_pool;
307 sc->reply_frame_busaddr = sc->mfi_tb_busaddr + offset;
308
309 /* Skip Reply Frame Pool */
310 addr += sc->reply_size * sc->mfi_max_fw_cmds;
311 sc->reply_pool_limit = addr;
312
313 /* initializing reply address to 0xFFFFFFFF */
314 memset((uint8_t *)sc->reply_frame_pool, 0xFF,
315 (sc->reply_size * sc->mfi_max_fw_cmds));
316
317 offset = sc->reply_size * sc->mfi_max_fw_cmds;
318 sc->sg_frame_busaddr = sc->reply_frame_busaddr + offset;
319 /* initialize the last_reply_idx to 0 */
320 sc->last_reply_idx = 0;
321 MFI_WRITE4(sc, MFI_RFPI, sc->mfi_max_fw_cmds - 1);
322 MFI_WRITE4(sc, MFI_RPI, sc->last_reply_idx);
323 offset = (sc->sg_frame_busaddr + (MEGASAS_MAX_SZ_CHAIN_FRAME *
324 sc->mfi_max_fw_cmds)) - sc->mfi_tb_busaddr;
325 if (offset > tbolt_contg_length)
326 device_printf(sc->mfi_dev, "Error:Initialized more than "
327 "allocated\n");
328 return 0;
329 }
330
331 /*
332 * This routine prepare and issue INIT2 frame to the Firmware
333 */
334
335 int
336 mfi_tbolt_init_MFI_queue(struct mfi_softc *sc)
337 {
338 struct MPI2_IOC_INIT_REQUEST *mpi2IocInit;
339 struct mfi_init_frame *mfi_init;
340 uintptr_t offset = 0;
341 bus_addr_t phyAddress;
342 MFI_ADDRESS *mfiAddressTemp;
343 struct mfi_command *cm, cmd_tmp;
344 int error;
345
346 mtx_assert(&sc->mfi_io_lock, MA_OWNED);
347
348 /* Check if initialization is already completed */
349 if (sc->MFA_enabled) {
350 device_printf(sc->mfi_dev, "tbolt_init already initialised!\n");
351 return 1;
352 }
353
354 if ((cm = mfi_dequeue_free(sc)) == NULL) {
355 device_printf(sc->mfi_dev, "tbolt_init failed to get command "
356 " entry!\n");
357 return (EBUSY);
358 }
359
360 cmd_tmp.cm_frame = cm->cm_frame;
361 cmd_tmp.cm_frame_busaddr = cm->cm_frame_busaddr;
362 cmd_tmp.cm_dmamap = cm->cm_dmamap;
363
364 cm->cm_frame = (union mfi_frame *)((uintptr_t)sc->mfi_tb_init);
365 cm->cm_frame_busaddr = sc->mfi_tb_init_busaddr;
366 cm->cm_dmamap = sc->mfi_tb_init_dmamap;
367 cm->cm_frame->header.context = 0;
368
369 /*
370 * Abuse the SG list area of the frame to hold the init_qinfo
371 * object;
372 */
373 mfi_init = &cm->cm_frame->init;
374
375 mpi2IocInit = (struct MPI2_IOC_INIT_REQUEST *)sc->mfi_tb_ioc_init_desc;
376 bzero(mpi2IocInit, sizeof(struct MPI2_IOC_INIT_REQUEST));
377 mpi2IocInit->Function = MPI2_FUNCTION_IOC_INIT;
378 mpi2IocInit->WhoInit = MPI2_WHOINIT_HOST_DRIVER;
379
380 /* set MsgVersion and HeaderVersion host driver was built with */
381 mpi2IocInit->MsgVersion = MPI2_VERSION;
382 mpi2IocInit->HeaderVersion = MPI2_HEADER_VERSION;
383 mpi2IocInit->SystemRequestFrameSize = sc->raid_io_msg_size/4;
384 mpi2IocInit->ReplyDescriptorPostQueueDepth
385 = (uint16_t)sc->mfi_max_fw_cmds;
386 mpi2IocInit->ReplyFreeQueueDepth = 0; /* Not supported by MR. */
387
388 /* Get physical address of reply frame pool */
389 offset = (uintptr_t) sc->reply_frame_pool_align
390 - (uintptr_t)sc->request_message_pool;
391 phyAddress = sc->mfi_tb_busaddr + offset;
392 mfiAddressTemp =
393 (MFI_ADDRESS *)&mpi2IocInit->ReplyDescriptorPostQueueAddress;
394 mfiAddressTemp->u.addressLow = (uint32_t)phyAddress;
395 mfiAddressTemp->u.addressHigh = (uint32_t)((uint64_t)phyAddress >> 32);
396
397 /* Get physical address of request message pool */
398 offset = sc->request_message_pool_align - sc->request_message_pool;
399 phyAddress = sc->mfi_tb_busaddr + offset;
400 mfiAddressTemp = (MFI_ADDRESS *)&mpi2IocInit->SystemRequestFrameBaseAddress;
401 mfiAddressTemp->u.addressLow = (uint32_t)phyAddress;
402 mfiAddressTemp->u.addressHigh = (uint32_t)((uint64_t)phyAddress >> 32);
403 mpi2IocInit->ReplyFreeQueueAddress = 0; /* Not supported by MR. */
404 mpi2IocInit->TimeStamp = time_uptime;
405
406 if (sc->verbuf) {
407 snprintf((char *)sc->verbuf, strlen(MEGASAS_VERSION) + 2, "%s\n",
408 MEGASAS_VERSION);
409 mfi_init->driver_ver_lo = (uint32_t)sc->verbuf_h_busaddr;
410 mfi_init->driver_ver_hi =
411 (uint32_t)((uint64_t)sc->verbuf_h_busaddr >> 32);
412 }
413 /* Get the physical address of the mpi2 ioc init command */
414 phyAddress = sc->mfi_tb_ioc_init_busaddr;
415 mfi_init->qinfo_new_addr_lo = (uint32_t)phyAddress;
416 mfi_init->qinfo_new_addr_hi = (uint32_t)((uint64_t)phyAddress >> 32);
417 mfi_init->header.flags |= MFI_FRAME_DONT_POST_IN_REPLY_QUEUE;
418
419 mfi_init->header.cmd = MFI_CMD_INIT;
420 mfi_init->header.data_len = sizeof(struct MPI2_IOC_INIT_REQUEST);
421 mfi_init->header.cmd_status = MFI_STAT_INVALID_STATUS;
422
423 cm->cm_data = NULL;
424 cm->cm_flags |= MFI_CMD_POLLED;
425 cm->cm_timestamp = time_uptime;
426 if ((error = mfi_mapcmd(sc, cm)) != 0) {
427 device_printf(sc->mfi_dev, "failed to send IOC init2 "
428 "command %d at %lx\n", error, (long)cm->cm_frame_busaddr);
429 goto out;
430 }
431
432 if (mfi_init->header.cmd_status == MFI_STAT_OK) {
433 sc->MFA_enabled = 1;
434 } else {
435 device_printf(sc->mfi_dev, "Init command Failed %#x\n",
436 mfi_init->header.cmd_status);
437 error = mfi_init->header.cmd_status;
438 goto out;
439 }
440
441 out:
442 cm->cm_frame = cmd_tmp.cm_frame;
443 cm->cm_frame_busaddr = cmd_tmp.cm_frame_busaddr;
444 cm->cm_dmamap = cmd_tmp.cm_dmamap;
445 mfi_release_command(cm);
446
447 return (error);
448
449 }
450
451 int
452 mfi_tbolt_alloc_cmd(struct mfi_softc *sc)
453 {
454 struct mfi_cmd_tbolt *cmd;
455 bus_addr_t io_req_base_phys;
456 uint8_t *io_req_base;
457 int i = 0, j = 0, offset = 0;
458
459 /*
460 * sc->mfi_cmd_pool_tbolt is an array of struct mfi_cmd_tbolt pointers.
461 * Allocate the dynamic array first and then allocate individual
462 * commands.
463 */
464 sc->request_desc_pool = malloc(sizeof(
465 union mfi_mpi2_request_descriptor) * sc->mfi_max_fw_cmds,
466 M_MFIBUF, M_NOWAIT|M_ZERO);
467
468 if (sc->request_desc_pool == NULL) {
469 device_printf(sc->mfi_dev, "Could not alloc "
470 "memory for request_desc_pool\n");
471 return (ENOMEM);
472 }
473
474 sc->mfi_cmd_pool_tbolt = malloc(sizeof(struct mfi_cmd_tbolt*)
475 * sc->mfi_max_fw_cmds, M_MFIBUF, M_NOWAIT|M_ZERO);
476
477 if (sc->mfi_cmd_pool_tbolt == NULL) {
478 free(sc->request_desc_pool, M_MFIBUF);
479 device_printf(sc->mfi_dev, "Could not alloc "
480 "memory for cmd_pool_tbolt\n");
481 return (ENOMEM);
482 }
483
484 for (i = 0; i < sc->mfi_max_fw_cmds; i++) {
485 sc->mfi_cmd_pool_tbolt[i] = malloc(sizeof(
486 struct mfi_cmd_tbolt),M_MFIBUF, M_NOWAIT|M_ZERO);
487
488 if (!sc->mfi_cmd_pool_tbolt[i]) {
489 device_printf(sc->mfi_dev, "Could not alloc "
490 "cmd_pool_tbolt entry\n");
491
492 for (j = 0; j < i; j++)
493 free(sc->mfi_cmd_pool_tbolt[j], M_MFIBUF);
494
495 free(sc->request_desc_pool, M_MFIBUF);
496 sc->request_desc_pool = NULL;
497 free(sc->mfi_cmd_pool_tbolt, M_MFIBUF);
498 sc->mfi_cmd_pool_tbolt = NULL;
499
500 return (ENOMEM);
501 }
502 }
503
504 /*
505 * The first 256 bytes (SMID 0) is not used. Don't add to the cmd
506 * list
507 */
508 io_req_base = sc->request_message_pool_align
509 + MEGASAS_THUNDERBOLT_NEW_MSG_SIZE;
510 io_req_base_phys = sc->request_msg_busaddr
511 + MEGASAS_THUNDERBOLT_NEW_MSG_SIZE;
512
513 /*
514 * Add all the commands to command pool (instance->cmd_pool)
515 */
516 /* SMID 0 is reserved. Set SMID/index from 1 */
517
518 for (i = 0; i < sc->mfi_max_fw_cmds; i++) {
519 cmd = sc->mfi_cmd_pool_tbolt[i];
520 offset = MEGASAS_THUNDERBOLT_NEW_MSG_SIZE * i;
521 cmd->index = i + 1;
522 cmd->request_desc = (union mfi_mpi2_request_descriptor *)
523 (sc->request_desc_pool + i);
524 cmd->io_request = (struct mfi_mpi2_request_raid_scsi_io *)
525 (io_req_base + offset);
526 cmd->io_request_phys_addr = io_req_base_phys + offset;
527 cmd->sg_frame = (MPI2_SGE_IO_UNION *)(sc->reply_pool_limit
528 + i * MEGASAS_MAX_SZ_CHAIN_FRAME);
529 cmd->sg_frame_phys_addr = sc->sg_frame_busaddr + i
530 * MEGASAS_MAX_SZ_CHAIN_FRAME;
531 cmd->sync_cmd_idx = sc->mfi_max_fw_cmds;
532
533 TAILQ_INSERT_TAIL(&(sc->mfi_cmd_tbolt_tqh), cmd, next);
534 }
535 return 0;
536 }
537
538 int
539 mfi_tbolt_reset(struct mfi_softc *sc)
540 {
541 uint32_t fw_state;
542
543 mtx_lock(&sc->mfi_io_lock);
544 if (sc->hw_crit_error) {
545 device_printf(sc->mfi_dev, "HW CRITICAL ERROR\n");
546 mtx_unlock(&sc->mfi_io_lock);
547 return 1;
548 }
549
550 if (sc->mfi_flags & MFI_FLAGS_TBOLT) {
551 fw_state = sc->mfi_read_fw_status(sc);
552 if ((fw_state & MFI_FWSTATE_FAULT) == MFI_FWSTATE_FAULT ||
553 mfi_fw_reset_test) {
554 if ((sc->disableOnlineCtrlReset == 0)
555 && (sc->adpreset == 0)) {
556 device_printf(sc->mfi_dev, "Adapter RESET "
557 "condition is detected\n");
558 sc->adpreset = 1;
559 sc->issuepend_done = 0;
560 sc->MFA_enabled = 0;
561 sc->last_reply_idx = 0;
562 mfi_process_fw_state_chg_isr((void *) sc);
563 }
564 mtx_unlock(&sc->mfi_io_lock);
565 return 0;
566 }
567 }
568 mtx_unlock(&sc->mfi_io_lock);
569 return 1;
570 }
571
572 /*
573 * mfi_intr_tbolt - isr entry point
574 */
575 void
576 mfi_intr_tbolt(void *arg)
577 {
578 struct mfi_softc *sc = (struct mfi_softc *)arg;
579
580 if (sc->mfi_check_clear_intr(sc) == 1) {
581 return;
582 }
583 if (sc->mfi_detaching)
584 return;
585 mtx_lock(&sc->mfi_io_lock);
586 mfi_tbolt_complete_cmd(sc);
587 sc->mfi_flags &= ~MFI_FLAGS_QFRZN;
588 mfi_startio(sc);
589 mtx_unlock(&sc->mfi_io_lock);
590 return;
591 }
592
593 /*
594 * map_cmd_status - Maps FW cmd status to OS cmd status
595 * @cmd : Pointer to cmd
596 * @status : status of cmd returned by FW
597 * @ext_status : ext status of cmd returned by FW
598 */
599
600 void
601 map_tbolt_cmd_status(struct mfi_command *mfi_cmd, uint8_t status,
602 uint8_t ext_status)
603 {
604 switch (status) {
605 case MFI_STAT_OK:
606 mfi_cmd->cm_frame->header.cmd_status = MFI_STAT_OK;
607 mfi_cmd->cm_frame->dcmd.header.cmd_status = MFI_STAT_OK;
608 mfi_cmd->cm_error = MFI_STAT_OK;
609 break;
610
611 case MFI_STAT_SCSI_IO_FAILED:
612 case MFI_STAT_LD_INIT_IN_PROGRESS:
613 mfi_cmd->cm_frame->header.cmd_status = status;
614 mfi_cmd->cm_frame->header.scsi_status = ext_status;
615 mfi_cmd->cm_frame->dcmd.header.cmd_status = status;
616 mfi_cmd->cm_frame->dcmd.header.scsi_status
617 = ext_status;
618 break;
619
620 case MFI_STAT_SCSI_DONE_WITH_ERROR:
621 mfi_cmd->cm_frame->header.cmd_status = ext_status;
622 mfi_cmd->cm_frame->dcmd.header.cmd_status = ext_status;
623 break;
624
625 case MFI_STAT_LD_OFFLINE:
626 case MFI_STAT_DEVICE_NOT_FOUND:
627 mfi_cmd->cm_frame->header.cmd_status = status;
628 mfi_cmd->cm_frame->dcmd.header.cmd_status = status;
629 break;
630
631 default:
632 mfi_cmd->cm_frame->header.cmd_status = status;
633 mfi_cmd->cm_frame->dcmd.header.cmd_status = status;
634 break;
635 }
636 }
637
638 /*
639 * mfi_tbolt_return_cmd - Return a cmd to free command pool
640 * @instance: Adapter soft state
641 * @tbolt_cmd: Tbolt command packet to be returned to free command pool
642 * @mfi_cmd: Oning MFI command packe
643 */
644 void
645 mfi_tbolt_return_cmd(struct mfi_softc *sc, struct mfi_cmd_tbolt *tbolt_cmd,
646 struct mfi_command *mfi_cmd)
647 {
648 mtx_assert(&sc->mfi_io_lock, MA_OWNED);
649
650 mfi_cmd->cm_flags &= ~MFI_CMD_TBOLT;
651 mfi_cmd->cm_extra_frames = 0;
652 tbolt_cmd->sync_cmd_idx = sc->mfi_max_fw_cmds;
653
654 TAILQ_INSERT_TAIL(&sc->mfi_cmd_tbolt_tqh, tbolt_cmd, next);
655 }
656
657 void
658 mfi_tbolt_complete_cmd(struct mfi_softc *sc)
659 {
660 struct mfi_mpi2_reply_header *desc, *reply_desc;
661 struct mfi_command *cmd_mfi; /* For MFA Cmds */
662 struct mfi_cmd_tbolt *cmd_tbolt;
663 uint16_t smid;
664 uint8_t reply_descript_type;
665 struct mfi_mpi2_request_raid_scsi_io *scsi_io_req;
666 uint32_t status, extStatus;
667 uint16_t num_completed;
668 union desc_value val;
669 mtx_assert(&sc->mfi_io_lock, MA_OWNED);
670
671 desc = (struct mfi_mpi2_reply_header *)
672 ((uintptr_t)sc->reply_frame_pool_align
673 + sc->last_reply_idx * sc->reply_size);
674 reply_desc = desc;
675
676 if (reply_desc == NULL) {
677 device_printf(sc->mfi_dev, "reply desc is NULL!!\n");
678 return;
679 }
680
681 reply_descript_type = reply_desc->ReplyFlags
682 & MPI2_RPY_DESCRIPT_FLAGS_TYPE_MASK;
683 if (reply_descript_type == MPI2_RPY_DESCRIPT_FLAGS_UNUSED)
684 return;
685
686 num_completed = 0;
687 val.word = ((union mfi_mpi2_reply_descriptor *)desc)->words;
688
689 /* Read Reply descriptor */
690 while ((val.u.low != 0xFFFFFFFF) && (val.u.high != 0xFFFFFFFF)) {
691 smid = reply_desc->SMID;
692 if (smid == 0 || smid > sc->mfi_max_fw_cmds) {
693 device_printf(sc->mfi_dev, "smid is %d cannot "
694 "proceed - skipping\n", smid);
695 goto next;
696 }
697 cmd_tbolt = sc->mfi_cmd_pool_tbolt[smid - 1];
698 if (cmd_tbolt->sync_cmd_idx == sc->mfi_max_fw_cmds) {
699 device_printf(sc->mfi_dev, "cmd_tbolt %p "
700 "has invalid sync_cmd_idx=%d - skipping\n",
701 cmd_tbolt, cmd_tbolt->sync_cmd_idx);
702 goto next;
703 }
704 cmd_mfi = &sc->mfi_commands[cmd_tbolt->sync_cmd_idx];
705 scsi_io_req = cmd_tbolt->io_request;
706
707 status = cmd_mfi->cm_frame->dcmd.header.cmd_status;
708 extStatus = cmd_mfi->cm_frame->dcmd.header.scsi_status;
709 map_tbolt_cmd_status(cmd_mfi, status, extStatus);
710
711 /* mfi_tbolt_return_cmd is handled by mfi complete / return */
712 if ((cmd_mfi->cm_flags & MFI_CMD_SCSI) != 0 &&
713 (cmd_mfi->cm_flags & MFI_CMD_POLLED) != 0) {
714 /* polled LD/SYSPD IO command */
715 /* XXX mark okay for now DJA */
716 cmd_mfi->cm_frame->header.cmd_status = MFI_STAT_OK;
717
718 } else {
719 /* remove command from busy queue if not polled */
720 if ((cmd_mfi->cm_flags & MFI_ON_MFIQ_BUSY) != 0)
721 mfi_remove_busy(cmd_mfi);
722
723 /* complete the command */
724 mfi_complete(sc, cmd_mfi);
725 }
726
727 next:
728 sc->last_reply_idx++;
729 if (sc->last_reply_idx >= sc->mfi_max_fw_cmds) {
730 MFI_WRITE4(sc, MFI_RPI, sc->last_reply_idx);
731 sc->last_reply_idx = 0;
732 }
733
734 /* Set it back to all 0xfff */
735 ((union mfi_mpi2_reply_descriptor*)desc)->words =
736 ~((uint64_t)0x00);
737
738 num_completed++;
739
740 /* Get the next reply descriptor */
741 desc = (struct mfi_mpi2_reply_header *)
742 ((uintptr_t)sc->reply_frame_pool_align
743 + sc->last_reply_idx * sc->reply_size);
744 reply_desc = desc;
745 val.word = ((union mfi_mpi2_reply_descriptor*)desc)->words;
746 reply_descript_type = reply_desc->ReplyFlags
747 & MPI2_RPY_DESCRIPT_FLAGS_TYPE_MASK;
748 if (reply_descript_type == MPI2_RPY_DESCRIPT_FLAGS_UNUSED)
749 break;
750 }
751
752 if (!num_completed)
753 return;
754
755 /* update replyIndex to FW */
756 if (sc->last_reply_idx)
757 MFI_WRITE4(sc, MFI_RPI, sc->last_reply_idx);
758
759 return;
760 }
761
762 /*
763 * mfi_get_cmd - Get a command from the free pool
764 * @instance: Adapter soft state
765 *
766 * Returns a free command from the pool
767 */
768
769 struct mfi_cmd_tbolt *
770 mfi_tbolt_get_cmd(struct mfi_softc *sc, struct mfi_command *mfi_cmd)
771 {
772 struct mfi_cmd_tbolt *cmd = NULL;
773
774 mtx_assert(&sc->mfi_io_lock, MA_OWNED);
775
776 if ((cmd = TAILQ_FIRST(&sc->mfi_cmd_tbolt_tqh)) == NULL)
777 return (NULL);
778 TAILQ_REMOVE(&sc->mfi_cmd_tbolt_tqh, cmd, next);
779 memset((uint8_t *)cmd->sg_frame, 0, MEGASAS_MAX_SZ_CHAIN_FRAME);
780 memset((uint8_t *)cmd->io_request, 0,
781 MEGASAS_THUNDERBOLT_NEW_MSG_SIZE);
782
783 cmd->sync_cmd_idx = mfi_cmd->cm_index;
784 mfi_cmd->cm_extra_frames = cmd->index; /* Frame count used as SMID */
785 mfi_cmd->cm_flags |= MFI_CMD_TBOLT;
786
787 return cmd;
788 }
789
790 union mfi_mpi2_request_descriptor *
791 mfi_tbolt_get_request_descriptor(struct mfi_softc *sc, uint16_t index)
792 {
793 uint8_t *p;
794
795 if (index >= sc->mfi_max_fw_cmds) {
796 device_printf(sc->mfi_dev, "Invalid SMID (0x%x)request "
797 "for descriptor\n", index);
798 return NULL;
799 }
800 p = sc->request_desc_pool + sizeof(union mfi_mpi2_request_descriptor)
801 * index;
802 memset(p, 0, sizeof(union mfi_mpi2_request_descriptor));
803 return (union mfi_mpi2_request_descriptor *)p;
804 }
805
806
807 /* Used to build IOCTL cmd */
808 uint8_t
809 mfi_build_mpt_pass_thru(struct mfi_softc *sc, struct mfi_command *mfi_cmd)
810 {
811 MPI25_IEEE_SGE_CHAIN64 *mpi25_ieee_chain;
812 struct mfi_mpi2_request_raid_scsi_io *io_req;
813 struct mfi_cmd_tbolt *cmd;
814
815 cmd = mfi_tbolt_get_cmd(sc, mfi_cmd);
816 if (!cmd)
817 return EBUSY;
818 io_req = cmd->io_request;
819 mpi25_ieee_chain = (MPI25_IEEE_SGE_CHAIN64 *)&io_req->SGL.IeeeChain;
820
821 io_req->Function = MPI2_FUNCTION_PASSTHRU_IO_REQUEST;
822 io_req->SGLOffset0 = offsetof(struct mfi_mpi2_request_raid_scsi_io,
823 SGL) / 4;
824 io_req->ChainOffset = sc->chain_offset_value_for_mpt_ptmsg;
825
826 mpi25_ieee_chain->Address = mfi_cmd->cm_frame_busaddr;
827
828 /*
829 In MFI pass thru, nextChainOffset will always be zero to
830 indicate the end of the chain.
831 */
832 mpi25_ieee_chain->Flags= MPI2_IEEE_SGE_FLAGS_CHAIN_ELEMENT
833 | MPI2_IEEE_SGE_FLAGS_IOCPLBNTA_ADDR;
834
835 /* setting the length to the maximum length */
836 mpi25_ieee_chain->Length = 1024;
837
838 return 0;
839 }
840
841 void
842 mfi_tbolt_build_ldio(struct mfi_softc *sc, struct mfi_command *mfi_cmd,
843 struct mfi_cmd_tbolt *cmd)
844 {
845 uint32_t start_lba_lo = 0, start_lba_hi = 0, device_id;
846 struct mfi_mpi2_request_raid_scsi_io *io_request;
847 struct IO_REQUEST_INFO io_info;
848
849 device_id = mfi_cmd->cm_frame->io.header.target_id;
850 io_request = cmd->io_request;
851 io_request->RaidContext.TargetID = device_id;
852 io_request->RaidContext.Status = 0;
853 io_request->RaidContext.exStatus =0;
854
855 start_lba_lo = mfi_cmd->cm_frame->io.lba_lo;
856 start_lba_hi = mfi_cmd->cm_frame->io.lba_hi;
857
858 memset(&io_info, 0, sizeof(struct IO_REQUEST_INFO));
859 io_info.ldStartBlock = ((uint64_t)start_lba_hi << 32) | start_lba_lo;
860 io_info.numBlocks = mfi_cmd->cm_frame->io.header.data_len;
861 io_info.ldTgtId = device_id;
862 if ((mfi_cmd->cm_frame->header.flags & MFI_FRAME_DIR_READ) ==
863 MFI_FRAME_DIR_READ)
864 io_info.isRead = 1;
865
866 io_request->RaidContext.timeoutValue
867 = MFI_FUSION_FP_DEFAULT_TIMEOUT;
868 io_request->Function = MPI2_FUNCTION_LD_IO_REQUEST;
869 io_request->DevHandle = device_id;
870 cmd->request_desc->header.RequestFlags
871 = (MFI_REQ_DESCRIPT_FLAGS_LD_IO
872 << MFI_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
873 if ((io_request->IoFlags == 6) && (io_info.numBlocks == 0))
874 io_request->RaidContext.RegLockLength = 0x100;
875 io_request->DataLength = mfi_cmd->cm_frame->io.header.data_len
876 * MFI_SECTOR_LEN;
877 }
878
879 int
880 mfi_tbolt_build_io(struct mfi_softc *sc, struct mfi_command *mfi_cmd,
881 struct mfi_cmd_tbolt *cmd)
882 {
883 struct mfi_mpi2_request_raid_scsi_io *io_request;
884 uint32_t sge_count;
885 uint8_t cdb_len;
886 int readop;
887 u_int64_t lba;
888
889 io_request = cmd->io_request;
890 if (!(mfi_cmd->cm_frame->header.cmd == MFI_CMD_LD_READ
891 || mfi_cmd->cm_frame->header.cmd == MFI_CMD_LD_WRITE))
892 return 1;
893
894 mfi_tbolt_build_ldio(sc, mfi_cmd, cmd);
895
896 /* Convert to SCSI command CDB */
897 bzero(io_request->CDB.CDB32, sizeof(io_request->CDB.CDB32));
898 if (mfi_cmd->cm_frame->header.cmd == MFI_CMD_LD_WRITE)
899 readop = 0;
900 else
901 readop = 1;
902
903 lba = mfi_cmd->cm_frame->io.lba_hi;
904 lba = (lba << 32) + mfi_cmd->cm_frame->io.lba_lo;
905 cdb_len = mfi_build_cdb(readop, 0, lba,
906 mfi_cmd->cm_frame->io.header.data_len, io_request->CDB.CDB32);
907
908 /* Just the CDB length, rest of the Flags are zero */
909 io_request->IoFlags = cdb_len;
910
911 /*
912 * Construct SGL
913 */
914 sge_count = mfi_tbolt_make_sgl(sc, mfi_cmd,
915 (pMpi25IeeeSgeChain64_t) &io_request->SGL, cmd);
916 if (sge_count > sc->mfi_max_sge) {
917 device_printf(sc->mfi_dev, "Error. sge_count (0x%x) exceeds "
918 "max (0x%x) allowed\n", sge_count, sc->mfi_max_sge);
919 return 1;
920 }
921 io_request->RaidContext.numSGE = sge_count;
922 io_request->SGLFlags = MPI2_SGE_FLAGS_64_BIT_ADDRESSING;
923
924 if (mfi_cmd->cm_frame->header.cmd == MFI_CMD_LD_WRITE)
925 io_request->Control = MPI2_SCSIIO_CONTROL_WRITE;
926 else
927 io_request->Control = MPI2_SCSIIO_CONTROL_READ;
928
929 io_request->SGLOffset0 = offsetof(
930 struct mfi_mpi2_request_raid_scsi_io, SGL)/4;
931
932 io_request->SenseBufferLowAddress = mfi_cmd->cm_sense_busaddr;
933 io_request->SenseBufferLength = MFI_SENSE_LEN;
934 io_request->RaidContext.Status = MFI_STAT_INVALID_STATUS;
935 io_request->RaidContext.exStatus = MFI_STAT_INVALID_STATUS;
936
937 return 0;
938 }
939
940
941 static int
942 mfi_tbolt_make_sgl(struct mfi_softc *sc, struct mfi_command *mfi_cmd,
943 pMpi25IeeeSgeChain64_t sgl_ptr, struct mfi_cmd_tbolt *cmd)
944 {
945 uint8_t i, sg_processed, sg_to_process;
946 uint8_t sge_count, sge_idx;
947 union mfi_sgl *os_sgl;
948
949 /*
950 * Return 0 if there is no data transfer
951 */
952 if (!mfi_cmd->cm_sg || !mfi_cmd->cm_len) {
953 device_printf(sc->mfi_dev, "Buffer empty \n");
954 return 0;
955 }
956 os_sgl = mfi_cmd->cm_sg;
957 sge_count = mfi_cmd->cm_frame->header.sg_count;
958
959 if (sge_count > sc->mfi_max_sge) {
960 device_printf(sc->mfi_dev, "sgl ptr %p sg_cnt %d \n",
961 os_sgl, sge_count);
962 return sge_count;
963 }
964
965 if (sge_count > sc->max_SGEs_in_main_message)
966 /* One element to store the chain info */
967 sge_idx = sc->max_SGEs_in_main_message - 1;
968 else
969 sge_idx = sge_count;
970
971 for (i = 0; i < sge_idx; i++) {
972 /*
973 * For 32bit BSD we are getting 32 bit SGL's from OS
974 * but FW only take 64 bit SGL's so copying from 32 bit
975 * SGL's to 64.
976 */
977 if (sc->mfi_flags & MFI_FLAGS_SKINNY) {
978 sgl_ptr->Length = os_sgl->sg_skinny[i].len;
979 sgl_ptr->Address = os_sgl->sg_skinny[i].addr;
980 } else {
981 sgl_ptr->Length = os_sgl->sg32[i].len;
982 sgl_ptr->Address = os_sgl->sg32[i].addr;
983 }
984 sgl_ptr->Flags = 0;
985 sgl_ptr++;
986 cmd->io_request->ChainOffset = 0;
987 }
988
989 sg_processed = i;
990
991 if (sg_processed < sge_count) {
992 pMpi25IeeeSgeChain64_t sg_chain;
993 sg_to_process = sge_count - sg_processed;
994 cmd->io_request->ChainOffset =
995 sc->chain_offset_value_for_main_message;
996 sg_chain = sgl_ptr;
997 /* Prepare chain element */
998 sg_chain->NextChainOffset = 0;
999 sg_chain->Flags = (MPI2_IEEE_SGE_FLAGS_CHAIN_ELEMENT |
1000 MPI2_IEEE_SGE_FLAGS_IOCPLBNTA_ADDR);
1001 sg_chain->Length = (sizeof(MPI2_SGE_IO_UNION) *
1002 (sge_count - sg_processed));
1003 sg_chain->Address = cmd->sg_frame_phys_addr;
1004 sgl_ptr = (pMpi25IeeeSgeChain64_t)cmd->sg_frame;
1005 for (; i < sge_count; i++) {
1006 if (sc->mfi_flags & MFI_FLAGS_SKINNY) {
1007 sgl_ptr->Length = os_sgl->sg_skinny[i].len;
1008 sgl_ptr->Address = os_sgl->sg_skinny[i].addr;
1009 } else {
1010 sgl_ptr->Length = os_sgl->sg32[i].len;
1011 sgl_ptr->Address = os_sgl->sg32[i].addr;
1012 }
1013 sgl_ptr->Flags = 0;
1014 sgl_ptr++;
1015 }
1016 }
1017 return sge_count;
1018 }
1019
1020 union mfi_mpi2_request_descriptor *
1021 mfi_build_and_issue_cmd(struct mfi_softc *sc, struct mfi_command *mfi_cmd)
1022 {
1023 struct mfi_cmd_tbolt *cmd;
1024 union mfi_mpi2_request_descriptor *req_desc = NULL;
1025 uint16_t index;
1026 cmd = mfi_tbolt_get_cmd(sc, mfi_cmd);
1027 if (cmd == NULL)
1028 return (NULL);
1029
1030 index = cmd->index;
1031 req_desc = mfi_tbolt_get_request_descriptor(sc, index-1);
1032 if (req_desc == NULL) {
1033 mfi_tbolt_return_cmd(sc, cmd, mfi_cmd);
1034 return (NULL);
1035 }
1036
1037 if (mfi_tbolt_build_io(sc, mfi_cmd, cmd) != 0) {
1038 mfi_tbolt_return_cmd(sc, cmd, mfi_cmd);
1039 return (NULL);
1040 }
1041 req_desc->header.SMID = index;
1042 return req_desc;
1043 }
1044
1045 union mfi_mpi2_request_descriptor *
1046 mfi_tbolt_build_mpt_cmd(struct mfi_softc *sc, struct mfi_command *cmd)
1047 {
1048 union mfi_mpi2_request_descriptor *req_desc = NULL;
1049 uint16_t index;
1050 if (mfi_build_mpt_pass_thru(sc, cmd)) {
1051 device_printf(sc->mfi_dev, "Couldn't build MFI pass thru "
1052 "cmd\n");
1053 return NULL;
1054 }
1055 /* For fusion the frame_count variable is used for SMID */
1056 index = cmd->cm_extra_frames;
1057
1058 req_desc = mfi_tbolt_get_request_descriptor(sc, index - 1);
1059 if (req_desc == NULL)
1060 return NULL;
1061
1062 bzero(req_desc, sizeof(*req_desc));
1063 req_desc->header.RequestFlags = (MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO <<
1064 MFI_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
1065 req_desc->header.SMID = index;
1066 return req_desc;
1067 }
1068
1069 int
1070 mfi_tbolt_send_frame(struct mfi_softc *sc, struct mfi_command *cm)
1071 {
1072 struct mfi_frame_header *hdr;
1073 uint8_t *cdb;
1074 union mfi_mpi2_request_descriptor *req_desc = NULL;
1075 int tm = mfi_polled_cmd_timeout * 1000;
1076
1077 hdr = &cm->cm_frame->header;
1078 cdb = cm->cm_frame->pass.cdb;
1079 if (sc->adpreset)
1080 return 1;
1081 if ((cm->cm_flags & MFI_CMD_POLLED) == 0) {
1082 cm->cm_timestamp = time_uptime;
1083 mfi_enqueue_busy(cm);
1084 } else { /* still get interrupts for it */
1085 hdr->cmd_status = MFI_STAT_INVALID_STATUS;
1086 hdr->flags |= MFI_FRAME_DONT_POST_IN_REPLY_QUEUE;
1087 }
1088
1089 if (hdr->cmd == MFI_CMD_PD_SCSI_IO) {
1090 /* check for inquiry commands coming from CLI */
1091 if (cdb[0] != 0x28 || cdb[0] != 0x2A) {
1092 if ((req_desc = mfi_tbolt_build_mpt_cmd(sc, cm)) ==
1093 NULL) {
1094 device_printf(sc->mfi_dev, "Mapping from MFI "
1095 "to MPT Failed \n");
1096 return 1;
1097 }
1098 }
1099 else
1100 device_printf(sc->mfi_dev, "DJA NA XXX SYSPDIO\n");
1101 } else if (hdr->cmd == MFI_CMD_LD_SCSI_IO ||
1102 hdr->cmd == MFI_CMD_LD_READ || hdr->cmd == MFI_CMD_LD_WRITE) {
1103 cm->cm_flags |= MFI_CMD_SCSI;
1104 if ((req_desc = mfi_build_and_issue_cmd(sc, cm)) == NULL) {
1105 device_printf(sc->mfi_dev, "LDIO Failed \n");
1106 return 1;
1107 }
1108 } else if ((req_desc = mfi_tbolt_build_mpt_cmd(sc, cm)) == NULL) {
1109 device_printf(sc->mfi_dev, "Mapping from MFI to MPT Failed\n");
1110 return (1);
1111 }
1112
1113 if (cm->cm_flags & MFI_CMD_SCSI) {
1114 /*
1115 * LD IO needs to be posted since it doesn't get
1116 * acknowledged via a status update so have the
1117 * controller reply via mfi_tbolt_complete_cmd.
1118 */
1119 hdr->flags &= ~MFI_FRAME_DONT_POST_IN_REPLY_QUEUE;
1120 }
1121
1122 MFI_WRITE4(sc, MFI_ILQP, (req_desc->words & 0xFFFFFFFF));
1123 MFI_WRITE4(sc, MFI_IHQP, (req_desc->words >>0x20));
1124
1125 if ((cm->cm_flags & MFI_CMD_POLLED) == 0)
1126 return 0;
1127
1128 /*
1129 * This is a polled command, so busy-wait for it to complete.
1130 *
1131 * The value of hdr->cmd_status is updated directly by the hardware
1132 * so there is no garantee that mfi_tbolt_complete_cmd is called
1133 * prior to this value changing.
1134 */
1135 while (hdr->cmd_status == MFI_STAT_INVALID_STATUS) {
1136 DELAY(1000);
1137 tm -= 1;
1138 if (tm <= 0)
1139 break;
1140 if (cm->cm_flags & MFI_CMD_SCSI) {
1141 /*
1142 * Force check reply queue.
1143 * This ensures that dump works correctly
1144 */
1145 mfi_tbolt_complete_cmd(sc);
1146 }
1147 }
1148
1149 /* ensure the command cleanup has been processed before returning */
1150 mfi_tbolt_complete_cmd(sc);
1151
1152 if (hdr->cmd_status == MFI_STAT_INVALID_STATUS) {
1153 device_printf(sc->mfi_dev, "Frame %p timed out "
1154 "command 0x%X\n", hdr, cm->cm_frame->dcmd.opcode);
1155 return (ETIMEDOUT);
1156 }
1157 return 0;
1158 }
1159
1160 static void
1161 mfi_issue_pending_cmds_again(struct mfi_softc *sc)
1162 {
1163 struct mfi_command *cm, *tmp;
1164 struct mfi_cmd_tbolt *cmd;
1165
1166 mtx_assert(&sc->mfi_io_lock, MA_OWNED);
1167 TAILQ_FOREACH_REVERSE_SAFE(cm, &sc->mfi_busy, BUSYQ, cm_link, tmp) {
1168
1169 cm->retry_for_fw_reset++;
1170
1171 /*
1172 * If a command has continuously been tried multiple times
1173 * and causing a FW reset condition, no further recoveries
1174 * should be performed on the controller
1175 */
1176 if (cm->retry_for_fw_reset == 3) {
1177 device_printf(sc->mfi_dev, "megaraid_sas: command %p "
1178 "index=%d was tried multiple times during adapter "
1179 "reset - Shutting down the HBA\n", cm, cm->cm_index);
1180 mfi_kill_hba(sc);
1181 sc->hw_crit_error = 1;
1182 return;
1183 }
1184
1185 mfi_remove_busy(cm);
1186 if ((cm->cm_flags & MFI_CMD_TBOLT) != 0) {
1187 if (cm->cm_extra_frames != 0 && cm->cm_extra_frames <=
1188 sc->mfi_max_fw_cmds) {
1189 cmd = sc->mfi_cmd_pool_tbolt[cm->cm_extra_frames - 1];
1190 mfi_tbolt_return_cmd(sc, cmd, cm);
1191 } else {
1192 device_printf(sc->mfi_dev,
1193 "Invalid extra_frames: %d detected\n",
1194 cm->cm_extra_frames);
1195 }
1196 }
1197
1198 if (cm->cm_frame->dcmd.opcode != MFI_DCMD_CTRL_EVENT_WAIT) {
1199 device_printf(sc->mfi_dev,
1200 "APJ ****requeue command %p index=%d\n",
1201 cm, cm->cm_index);
1202 mfi_requeue_ready(cm);
1203 } else
1204 mfi_release_command(cm);
1205 }
1206 mfi_startio(sc);
1207 }
1208
1209 static void
1210 mfi_kill_hba(struct mfi_softc *sc)
1211 {
1212 if (sc->mfi_flags & MFI_FLAGS_TBOLT)
1213 MFI_WRITE4(sc, 0x00, MFI_STOP_ADP);
1214 else
1215 MFI_WRITE4(sc, MFI_IDB, MFI_STOP_ADP);
1216 }
1217
1218 static void
1219 mfi_process_fw_state_chg_isr(void *arg)
1220 {
1221 struct mfi_softc *sc= (struct mfi_softc *)arg;
1222 int error, status;
1223
1224 if (sc->adpreset == 1) {
1225 device_printf(sc->mfi_dev, "First stage of FW reset "
1226 "initiated...\n");
1227
1228 sc->mfi_adp_reset(sc);
1229 sc->mfi_enable_intr(sc);
1230
1231 device_printf(sc->mfi_dev, "First stage of reset complete, "
1232 "second stage initiated...\n");
1233
1234 sc->adpreset = 2;
1235
1236 /* waiting for about 20 second before start the second init */
1237 for (int wait = 0; wait < 20000; wait++)
1238 DELAY(1000);
1239 device_printf(sc->mfi_dev, "Second stage of FW reset "
1240 "initiated...\n");
1241 while ((status = MFI_READ4(sc, MFI_RSR)) & 0x04);
1242
1243 sc->mfi_disable_intr(sc);
1244
1245 /* We expect the FW state to be READY */
1246 if (mfi_transition_firmware(sc)) {
1247 device_printf(sc->mfi_dev, "controller is not in "
1248 "ready state\n");
1249 mfi_kill_hba(sc);
1250 sc->hw_crit_error = 1;
1251 return;
1252 }
1253 if ((error = mfi_tbolt_init_MFI_queue(sc)) != 0) {
1254 device_printf(sc->mfi_dev, "Failed to initialise MFI "
1255 "queue\n");
1256 mfi_kill_hba(sc);
1257 sc->hw_crit_error = 1;
1258 return;
1259 }
1260
1261 /* Init last reply index and max */
1262 MFI_WRITE4(sc, MFI_RFPI, sc->mfi_max_fw_cmds - 1);
1263 MFI_WRITE4(sc, MFI_RPI, sc->last_reply_idx);
1264
1265 sc->mfi_enable_intr(sc);
1266 sc->adpreset = 0;
1267 if (sc->mfi_aen_cm != NULL) {
1268 free(sc->mfi_aen_cm->cm_data, M_MFIBUF);
1269 mfi_remove_busy(sc->mfi_aen_cm);
1270 mfi_release_command(sc->mfi_aen_cm);
1271 sc->mfi_aen_cm = NULL;
1272 }
1273
1274 if (sc->mfi_map_sync_cm != NULL) {
1275 mfi_remove_busy(sc->mfi_map_sync_cm);
1276 mfi_release_command(sc->mfi_map_sync_cm);
1277 sc->mfi_map_sync_cm = NULL;
1278 }
1279 mfi_issue_pending_cmds_again(sc);
1280
1281 /*
1282 * Issue pending command can result in adapter being marked
1283 * dead because of too many re-tries. Check for that
1284 * condition before clearing the reset condition on the FW
1285 */
1286 if (!sc->hw_crit_error) {
1287 /*
1288 * Initiate AEN (Asynchronous Event Notification) &
1289 * Sync Map
1290 */
1291 mfi_aen_setup(sc, sc->last_seq_num);
1292 mfi_tbolt_sync_map_info(sc);
1293
1294 sc->issuepend_done = 1;
1295 device_printf(sc->mfi_dev, "second stage of reset "
1296 "complete, FW is ready now.\n");
1297 } else {
1298 device_printf(sc->mfi_dev, "second stage of reset "
1299 "never completed, hba was marked offline.\n");
1300 }
1301 } else {
1302 device_printf(sc->mfi_dev, "mfi_process_fw_state_chg_isr "
1303 "called with unhandled value:%d\n", sc->adpreset);
1304 }
1305 }
1306
1307 /*
1308 * The ThunderBolt HW has an option for the driver to directly
1309 * access the underlying disks and operate on the RAID. To
1310 * do this there needs to be a capability to keep the RAID controller
1311 * and driver in sync. The FreeBSD driver does not take advantage
1312 * of this feature since it adds a lot of complexity and slows down
1313 * performance. Performance is gained by using the controller's
1314 * cache etc.
1315 *
1316 * Even though this driver doesn't access the disks directly, an
1317 * AEN like command is used to inform the RAID firmware to "sync"
1318 * with all LD's via the MFI_DCMD_LD_MAP_GET_INFO command. This
1319 * command in write mode will return when the RAID firmware has
1320 * detected a change to the RAID state. Examples of this type
1321 * of change are removing a disk. Once the command returns then
1322 * the driver needs to acknowledge this and "sync" all LD's again.
1323 * This repeats until we shutdown. Then we need to cancel this
1324 * pending command.
1325 *
1326 * If this is not done right the RAID firmware will not remove a
1327 * pulled drive and the RAID won't go degraded etc. Effectively,
1328 * stopping any RAID mangement to functions.
1329 *
1330 * Doing another LD sync, requires the use of an event since the
1331 * driver needs to do a mfi_wait_command and can't do that in an
1332 * interrupt thread.
1333 *
1334 * The driver could get the RAID state via the MFI_DCMD_LD_MAP_GET_INFO
1335 * That requires a bunch of structure and it is simplier to just do
1336 * the MFI_DCMD_LD_GET_LIST versus walking the RAID map.
1337 */
1338
1339 void
1340 mfi_tbolt_sync_map_info(struct mfi_softc *sc)
1341 {
1342 int error = 0, i;
1343 struct mfi_command *cmd = NULL;
1344 struct mfi_dcmd_frame *dcmd = NULL;
1345 uint32_t context = 0;
1346 union mfi_ld_ref *ld_sync = NULL;
1347 size_t ld_size;
1348 struct mfi_frame_header *hdr;
1349 struct mfi_command *cm = NULL;
1350 struct mfi_ld_list *list = NULL;
1351
1352 mtx_assert(&sc->mfi_io_lock, MA_OWNED);
1353
1354 if (sc->mfi_map_sync_cm != NULL || sc->cm_map_abort)
1355 return;
1356
1357 error = mfi_dcmd_command(sc, &cm, MFI_DCMD_LD_GET_LIST,
1358 (void **)&list, sizeof(*list));
1359 if (error)
1360 goto out;
1361
1362 cm->cm_flags = MFI_CMD_POLLED | MFI_CMD_DATAIN;
1363
1364 if (mfi_wait_command(sc, cm) != 0) {
1365 device_printf(sc->mfi_dev, "Failed to get device listing\n");
1366 goto out;
1367 }
1368
1369 hdr = &cm->cm_frame->header;
1370 if (hdr->cmd_status != MFI_STAT_OK) {
1371 device_printf(sc->mfi_dev, "MFI_DCMD_LD_GET_LIST failed %x\n",
1372 hdr->cmd_status);
1373 goto out;
1374 }
1375
1376 ld_size = sizeof(*ld_sync) * list->ld_count;
1377 ld_sync = (union mfi_ld_ref *) malloc(ld_size, M_MFIBUF,
1378 M_NOWAIT | M_ZERO);
1379 if (ld_sync == NULL) {
1380 device_printf(sc->mfi_dev, "Failed to allocate sync\n");
1381 goto out;
1382 }
1383 for (i = 0; i < list->ld_count; i++)
1384 ld_sync[i].ref = list->ld_list[i].ld.ref;
1385
1386 if ((cmd = mfi_dequeue_free(sc)) == NULL) {
1387 device_printf(sc->mfi_dev, "Failed to get command\n");
1388 free(ld_sync, M_MFIBUF);
1389 goto out;
1390 }
1391
1392 context = cmd->cm_frame->header.context;
1393 bzero(cmd->cm_frame, sizeof(union mfi_frame));
1394 cmd->cm_frame->header.context = context;
1395
1396 dcmd = &cmd->cm_frame->dcmd;
1397 bzero(dcmd->mbox, MFI_MBOX_SIZE);
1398 dcmd->header.cmd = MFI_CMD_DCMD;
1399 dcmd->header.flags = MFI_FRAME_DIR_WRITE;
1400 dcmd->header.timeout = 0;
1401 dcmd->header.data_len = ld_size;
1402 dcmd->header.scsi_status = 0;
1403 dcmd->opcode = MFI_DCMD_LD_MAP_GET_INFO;
1404 cmd->cm_sg = &dcmd->sgl;
1405 cmd->cm_total_frame_size = MFI_DCMD_FRAME_SIZE;
1406 cmd->cm_data = ld_sync;
1407 cmd->cm_private = ld_sync;
1408
1409 cmd->cm_len = ld_size;
1410 cmd->cm_complete = mfi_sync_map_complete;
1411 sc->mfi_map_sync_cm = cmd;
1412
1413 cmd->cm_flags = MFI_CMD_DATAOUT;
1414 cmd->cm_frame->dcmd.mbox[0] = list->ld_count;
1415 cmd->cm_frame->dcmd.mbox[1] = MFI_DCMD_MBOX_PEND_FLAG;
1416
1417 if ((error = mfi_mapcmd(sc, cmd)) != 0) {
1418 device_printf(sc->mfi_dev, "failed to send map sync\n");
1419 free(ld_sync, M_MFIBUF);
1420 sc->mfi_map_sync_cm = NULL;
1421 mfi_release_command(cmd);
1422 goto out;
1423 }
1424
1425 out:
1426 if (list)
1427 free(list, M_MFIBUF);
1428 if (cm)
1429 mfi_release_command(cm);
1430 }
1431
1432 static void
1433 mfi_sync_map_complete(struct mfi_command *cm)
1434 {
1435 struct mfi_frame_header *hdr;
1436 struct mfi_softc *sc;
1437 int aborted = 0;
1438
1439 sc = cm->cm_sc;
1440 mtx_assert(&sc->mfi_io_lock, MA_OWNED);
1441
1442 hdr = &cm->cm_frame->header;
1443
1444 if (sc->mfi_map_sync_cm == NULL)
1445 return;
1446
1447 if (sc->cm_map_abort ||
1448 hdr->cmd_status == MFI_STAT_INVALID_STATUS) {
1449 sc->cm_map_abort = 0;
1450 aborted = 1;
1451 }
1452
1453 free(cm->cm_data, M_MFIBUF);
1454 wakeup(&sc->mfi_map_sync_cm);
1455 sc->mfi_map_sync_cm = NULL;
1456 mfi_release_command(cm);
1457
1458 /* set it up again so the driver can catch more events */
1459 if (!aborted)
1460 mfi_queue_map_sync(sc);
1461 }
1462
1463 static void
1464 mfi_queue_map_sync(struct mfi_softc *sc)
1465 {
1466 mtx_assert(&sc->mfi_io_lock, MA_OWNED);
1467 taskqueue_enqueue(taskqueue_swi, &sc->mfi_map_sync_task);
1468 }
1469
1470 void
1471 mfi_handle_map_sync(void *context, int pending)
1472 {
1473 struct mfi_softc *sc;
1474
1475 sc = context;
1476 mtx_lock(&sc->mfi_io_lock);
1477 mfi_tbolt_sync_map_info(sc);
1478 mtx_unlock(&sc->mfi_io_lock);
1479 }
Cache object: 770c3f9f25b4ede539b142a6c1836927
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