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Merge tag 'char-misc-3.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregk...
[deliverable/linux.git] / drivers / scsi / esas2r / esas2r_flash.c
CommitLineData
26780d9e
BG		 1
2/*
3 * linux/drivers/scsi/esas2r/esas2r_flash.c
4 * For use with ATTO ExpressSAS R6xx SAS/SATA RAID controllers
5 *
6 * Copyright (c) 2001-2013 ATTO Technology, Inc.
7 * (mailto:linuxdrivers@attotech.com)
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * as published by the Free Software Foundation; either version 2
12 * of the License, or (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * NO WARRANTY
20 * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
21 * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
22 * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
23 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
24 * solely responsible for determining the appropriateness of using and
25 * distributing the Program and assumes all risks associated with its
26 * exercise of rights under this Agreement, including but not limited to
27 * the risks and costs of program errors, damage to or loss of data,
28 * programs or equipment, and unavailability or interruption of operations.
29 *
30 * DISCLAIMER OF LIABILITY
31 * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
32 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
33 * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
34 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
35 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
36 * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
37 * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
38 *
39 * You should have received a copy of the GNU General Public License
40 * along with this program; if not, write to the Free Software
41 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
42 * USA.
43 */
44
45#include "esas2r.h"
46
47/* local macro defs */
48#define esas2r_nvramcalc_cksum(n) \
49 (esas2r_calc_byte_cksum((u8 *)(n), sizeof(struct esas2r_sas_nvram), \
50 SASNVR_CKSUM_SEED))
51#define esas2r_nvramcalc_xor_cksum(n) \
52 (esas2r_calc_byte_xor_cksum((u8 *)(n), \
53 sizeof(struct esas2r_sas_nvram), 0))
54
55#define ESAS2R_FS_DRVR_VER 2
56
57static struct esas2r_sas_nvram default_sas_nvram = {
58 { 'E', 'S', 'A', 'S' }, /* signature */
59 SASNVR_VERSION, /* version */
60 0, /* checksum */
61 31, /* max_lun_for_target */
62 SASNVR_PCILAT_MAX, /* pci_latency */
63 SASNVR1_BOOT_DRVR, /* options1 */
64 SASNVR2_HEARTBEAT | SASNVR2_SINGLE_BUS /* options2 */
65 | SASNVR2_SW_MUX_CTRL,
66 SASNVR_COAL_DIS, /* int_coalescing */
67 SASNVR_CMDTHR_NONE, /* cmd_throttle */
68 3, /* dev_wait_time */
69 1, /* dev_wait_count */
70 0, /* spin_up_delay */
71 0, /* ssp_align_rate */
72 { 0x50, 0x01, 0x08, 0x60, /* sas_addr */
73 0x00, 0x00, 0x00, 0x00 },
74 { SASNVR_SPEED_AUTO }, /* phy_speed */
75 { SASNVR_MUX_DISABLED }, /* SAS multiplexing */
76 { 0 }, /* phy_flags */
77 SASNVR_SORT_SAS_ADDR, /* sort_type */
78 3, /* dpm_reqcmd_lmt */
79 3, /* dpm_stndby_time */
80 0, /* dpm_active_time */
81 { 0 }, /* phy_target_id */
82 SASNVR_VSMH_DISABLED, /* virt_ses_mode */
83 SASNVR_RWM_DEFAULT, /* read_write_mode */
84 0, /* link down timeout */
85 { 0 } /* reserved */
86};
87
88static u8 cmd_to_fls_func[] = {
89 0xFF,
90 VDA_FLASH_READ,
91 VDA_FLASH_BEGINW,
92 VDA_FLASH_WRITE,
93 VDA_FLASH_COMMIT,
94 VDA_FLASH_CANCEL
95};
96
97static u8 esas2r_calc_byte_xor_cksum(u8 *addr, u32 len, u8 seed)
98{
99 u32 cksum = seed;
100 u8 *p = (u8 *)&cksum;
101
102 while (len) {
103 if (((uintptr_t)addr & 3) == 0)
104 break;
105
106 cksum = cksum ^ *addr;
107 addr++;
108 len--;
109 }
110 while (len >= sizeof(u32)) {
111 cksum = cksum ^ *(u32 *)addr;
112 addr += 4;
113 len -= 4;
114 }
115 while (len--) {
116 cksum = cksum ^ *addr;
117 addr++;
118 }
119 return p[0] ^ p[1] ^ p[2] ^ p[3];
120}
121
122static u8 esas2r_calc_byte_cksum(void *addr, u32 len, u8 seed)
123{
124 u8 *p = (u8 *)addr;
125 u8 cksum = seed;
126
127 while (len--)
128 cksum = cksum + p[len];
129 return cksum;
130}
131
132/* Interrupt callback to process FM API write requests. */
133static void esas2r_fmapi_callback(struct esas2r_adapter *a,
134 struct esas2r_request *rq)
135{
136 struct atto_vda_flash_req *vrq = &rq->vrq->flash;
137 struct esas2r_flash_context *fc =
138 (struct esas2r_flash_context *)rq->interrupt_cx;
139
140 if (rq->req_stat == RS_SUCCESS) {
141 /* Last request was successful. See what to do now. */
142 switch (vrq->sub_func) {
143 case VDA_FLASH_BEGINW:
144 if (fc->sgc.cur_offset == NULL)
145 goto commit;
146
147 vrq->sub_func = VDA_FLASH_WRITE;
148 rq->req_stat = RS_PENDING;
149 break;
150
151 case VDA_FLASH_WRITE:
152commit:
153 vrq->sub_func = VDA_FLASH_COMMIT;
154 rq->req_stat = RS_PENDING;
155 rq->interrupt_cb = fc->interrupt_cb;
156 break;
157
158 default:
159 break;
160 }
161 }
162
163 if (rq->req_stat != RS_PENDING)
164 /*
165 * All done. call the real callback to complete the FM API
166 * request. We should only get here if a BEGINW or WRITE
167 * operation failed.
168 */
169 (*fc->interrupt_cb)(a, rq);
170}
171
172/*
173 * Build a flash request based on the flash context. The request status
174 * is filled in on an error.
175 */
176static void build_flash_msg(struct esas2r_adapter *a,
177 struct esas2r_request *rq)
178{
179 struct esas2r_flash_context *fc =
180 (struct esas2r_flash_context *)rq->interrupt_cx;
181 struct esas2r_sg_context *sgc = &fc->sgc;
182 u8 cksum = 0;
183
184 /* calculate the checksum */
185 if (fc->func == VDA_FLASH_BEGINW) {
186 if (sgc->cur_offset)
187 cksum = esas2r_calc_byte_xor_cksum(sgc->cur_offset,
188 sgc->length,
189 0);
190 rq->interrupt_cb = esas2r_fmapi_callback;
191 } else {
192 rq->interrupt_cb = fc->interrupt_cb;
193 }
194 esas2r_build_flash_req(a,
195 rq,
196 fc->func,
197 cksum,
198 fc->flsh_addr,
199 sgc->length);
200
201 esas2r_rq_free_sg_lists(rq, a);
202
203 /*
204 * remember the length we asked for. we have to keep track of
205 * the current amount done so we know how much to compare when
206 * doing the verification phase.
207 */
208 fc->curr_len = fc->sgc.length;
209
210 if (sgc->cur_offset) {
211 /* setup the S/G context to build the S/G table */
212 esas2r_sgc_init(sgc, a, rq, &rq->vrq->flash.data.sge[0]);
213
214 if (!esas2r_build_sg_list(a, rq, sgc)) {
215 rq->req_stat = RS_BUSY;
216 return;
217 }
218 } else {
219 fc->sgc.length = 0;
220 }
221
222 /* update the flsh_addr to the next one to write to */
223 fc->flsh_addr += fc->curr_len;
224}
225
226/* determine the method to process the flash request */
227static bool load_image(struct esas2r_adapter *a, struct esas2r_request *rq)
228{
229 /*
230 * assume we have more to do. if we return with the status set to
231 * RS_PENDING, FM API tasks will continue.
232 */
233 rq->req_stat = RS_PENDING;
234 if (a->flags & AF_DEGRADED_MODE)
235 /* not suppported for now */;
236 else
237 build_flash_msg(a, rq);
238
239 return rq->req_stat == RS_PENDING;
240}
241
242/* boot image fixer uppers called before downloading the image. */
243static void fix_bios(struct esas2r_adapter *a, struct esas2r_flash_img *fi)
244{
245 struct esas2r_component_header *ch = &fi->cmp_hdr[CH_IT_BIOS];
246 struct esas2r_pc_image *pi;
247 struct esas2r_boot_header *bh;
248
249 pi = (struct esas2r_pc_image *)((u8 *)fi + ch->image_offset);
250 bh =
251 (struct esas2r_boot_header *)((u8 *)pi +
252 le16_to_cpu(pi->header_offset));
253 bh->device_id = cpu_to_le16(a->pcid->device);
254
255 /* Recalculate the checksum in the PNP header if there */
256 if (pi->pnp_offset) {
257 u8 *pnp_header_bytes =
258 ((u8 *)pi + le16_to_cpu(pi->pnp_offset));
259
260 /* Identifier - dword that starts at byte 10 */
261 *((u32 *)&pnp_header_bytes[10]) =
262 cpu_to_le32(MAKEDWORD(a->pcid->subsystem_vendor,
263 a->pcid->subsystem_device));
264
265 /* Checksum - byte 9 */
266 pnp_header_bytes[9] -= esas2r_calc_byte_cksum(pnp_header_bytes,
267 32, 0);
268 }
269
270 /* Recalculate the checksum needed by the PC */
271 pi->checksum = pi->checksum -
272 esas2r_calc_byte_cksum((u8 *)pi, ch->length, 0);
273}
274
275static void fix_efi(struct esas2r_adapter *a, struct esas2r_flash_img *fi)
276{
277 struct esas2r_component_header *ch = &fi->cmp_hdr[CH_IT_EFI];
278 u32 len = ch->length;
279 u32 offset = ch->image_offset;
280 struct esas2r_efi_image *ei;
281 struct esas2r_boot_header *bh;
282
283 while (len) {
284 u32 thislen;
285
286 ei = (struct esas2r_efi_image *)((u8 *)fi + offset);
287 bh = (struct esas2r_boot_header *)((u8 *)ei +
288 le16_to_cpu(
289 ei->header_offset));
290 bh->device_id = cpu_to_le16(a->pcid->device);
291 thislen = (u32)le16_to_cpu(bh->image_length) * 512;
292
293 if (thislen > len)
294 break;
295
296 len -= thislen;
297 offset += thislen;
298 }
299}
300
301/* Complete a FM API request with the specified status. */
302static bool complete_fmapi_req(struct esas2r_adapter *a,
303 struct esas2r_request *rq, u8 fi_stat)
304{
305 struct esas2r_flash_context *fc =
306 (struct esas2r_flash_context *)rq->interrupt_cx;
307 struct esas2r_flash_img *fi = fc->fi;
308
309 fi->status = fi_stat;
310 fi->driver_error = rq->req_stat;
311 rq->interrupt_cb = NULL;
312 rq->req_stat = RS_SUCCESS;
313
314 if (fi_stat != FI_STAT_IMG_VER)
315 memset(fc->scratch, 0, FM_BUF_SZ);
316
317 esas2r_enable_heartbeat(a);
318 esas2r_lock_clear_flags(&a->flags, AF_FLASH_LOCK);
319 return false;
320}
321
322/* Process each phase of the flash download process. */
323static void fw_download_proc(struct esas2r_adapter *a,
324 struct esas2r_request *rq)
325{
326 struct esas2r_flash_context *fc =
327 (struct esas2r_flash_context *)rq->interrupt_cx;
328 struct esas2r_flash_img *fi = fc->fi;
329 struct esas2r_component_header *ch;
330 u32 len;
331 u8 *p, *q;
332
333 /* If the previous operation failed, just return. */
334 if (rq->req_stat != RS_SUCCESS)
335 goto error;
336
337 /*
338 * If an upload just completed and the compare length is non-zero,
339 * then we just read back part of the image we just wrote. verify the
340 * section and continue reading until the entire image is verified.
341 */
342 if (fc->func == VDA_FLASH_READ
343 && fc->cmp_len) {
344 ch = &fi->cmp_hdr[fc->comp_typ];
345
346 p = fc->scratch;
347 q = (u8 *)fi /* start of the whole gob */
348 + ch->image_offset /* start of the current image */
349 + ch->length /* end of the current image */
350 - fc->cmp_len; /* where we are now */
351
352 /*
353 * NOTE - curr_len is the exact count of bytes for the read
354 * even when the end is read and its not a full buffer
355 */
356 for (len = fc->curr_len; len; len--)
357 if (*p++ != *q++)
358 goto error;
359
360 fc->cmp_len -= fc->curr_len; /* # left to compare */
361
362 /* Update fc and determine the length for the next upload */
363 if (fc->cmp_len > FM_BUF_SZ)
364 fc->sgc.length = FM_BUF_SZ;
365 else
366 fc->sgc.length = fc->cmp_len;
367
368 fc->sgc.cur_offset = fc->sgc_offset +
369 ((u8 *)fc->scratch - (u8 *)fi);
370 }
371
372 /*
373 * This code uses a 'while' statement since the next component may
374 * have a length = zero. This can happen since some components are
375 * not required. At the end of this 'while' we set up the length
376 * for the next request and therefore sgc.length can be = 0.
377 */
378 while (fc->sgc.length == 0) {
379 ch = &fi->cmp_hdr[fc->comp_typ];
380
381 switch (fc->task) {
382 case FMTSK_ERASE_BOOT:
383 /* the BIOS image is written next */
384 ch = &fi->cmp_hdr[CH_IT_BIOS];
385 if (ch->length == 0)
386 goto no_bios;
387
388 fc->task = FMTSK_WRTBIOS;
389 fc->func = VDA_FLASH_BEGINW;
390 fc->comp_typ = CH_IT_BIOS;
391 fc->flsh_addr = FLS_OFFSET_BOOT;
392 fc->sgc.length = ch->length;
393 fc->sgc.cur_offset = fc->sgc_offset +
394 ch->image_offset;
395 break;
396
397 case FMTSK_WRTBIOS:
398 /*
399 * The BIOS image has been written - read it and
400 * verify it
401 */
402 fc->task = FMTSK_READBIOS;
403 fc->func = VDA_FLASH_READ;
404 fc->flsh_addr = FLS_OFFSET_BOOT;
405 fc->cmp_len = ch->length;
406 fc->sgc.length = FM_BUF_SZ;
407 fc->sgc.cur_offset = fc->sgc_offset
408 + ((u8 *)fc->scratch -
409 (u8 *)fi);
410 break;
411
412 case FMTSK_READBIOS:
413no_bios:
414 /*
415 * Mark the component header status for the image
416 * completed
417 */
418 ch->status = CH_STAT_SUCCESS;
419
420 /* The MAC image is written next */
421 ch = &fi->cmp_hdr[CH_IT_MAC];
422 if (ch->length == 0)
423 goto no_mac;
424
425 fc->task = FMTSK_WRTMAC;
426 fc->func = VDA_FLASH_BEGINW;
427 fc->comp_typ = CH_IT_MAC;
428 fc->flsh_addr = FLS_OFFSET_BOOT
429 + fi->cmp_hdr[CH_IT_BIOS].length;
430 fc->sgc.length = ch->length;
431 fc->sgc.cur_offset = fc->sgc_offset +
432 ch->image_offset;
433 break;
434
435 case FMTSK_WRTMAC:
436 /* The MAC image has been written - read and verify */
437 fc->task = FMTSK_READMAC;
438 fc->func = VDA_FLASH_READ;
439 fc->flsh_addr -= ch->length;
440 fc->cmp_len = ch->length;
441 fc->sgc.length = FM_BUF_SZ;
442 fc->sgc.cur_offset = fc->sgc_offset
443 + ((u8 *)fc->scratch -
444 (u8 *)fi);
445 break;
446
447 case FMTSK_READMAC:
448no_mac:
449 /*
450 * Mark the component header status for the image
451 * completed
452 */
453 ch->status = CH_STAT_SUCCESS;
454
455 /* The EFI image is written next */
456 ch = &fi->cmp_hdr[CH_IT_EFI];
457 if (ch->length == 0)
458 goto no_efi;
459
460 fc->task = FMTSK_WRTEFI;
461 fc->func = VDA_FLASH_BEGINW;
462 fc->comp_typ = CH_IT_EFI;
463 fc->flsh_addr = FLS_OFFSET_BOOT
464 + fi->cmp_hdr[CH_IT_BIOS].length
465 + fi->cmp_hdr[CH_IT_MAC].length;
466 fc->sgc.length = ch->length;
467 fc->sgc.cur_offset = fc->sgc_offset +
468 ch->image_offset;
469 break;
470
471 case FMTSK_WRTEFI:
472 /* The EFI image has been written - read and verify */
473 fc->task = FMTSK_READEFI;
474 fc->func = VDA_FLASH_READ;
475 fc->flsh_addr -= ch->length;
476 fc->cmp_len = ch->length;
477 fc->sgc.length = FM_BUF_SZ;
478 fc->sgc.cur_offset = fc->sgc_offset
479 + ((u8 *)fc->scratch -
480 (u8 *)fi);
481 break;
482
483 case FMTSK_READEFI:
484no_efi:
485 /*
486 * Mark the component header status for the image
487 * completed
488 */
489 ch->status = CH_STAT_SUCCESS;
490
491 /* The CFG image is written next */
492 ch = &fi->cmp_hdr[CH_IT_CFG];
493
494 if (ch->length == 0)
495 goto no_cfg;
496 fc->task = FMTSK_WRTCFG;
497 fc->func = VDA_FLASH_BEGINW;
498 fc->comp_typ = CH_IT_CFG;
499 fc->flsh_addr = FLS_OFFSET_CPYR - ch->length;
500 fc->sgc.length = ch->length;
501 fc->sgc.cur_offset = fc->sgc_offset +
502 ch->image_offset;
503 break;
504
505 case FMTSK_WRTCFG:
506 /* The CFG image has been written - read and verify */
507 fc->task = FMTSK_READCFG;
508 fc->func = VDA_FLASH_READ;
509 fc->flsh_addr = FLS_OFFSET_CPYR - ch->length;
510 fc->cmp_len = ch->length;
511 fc->sgc.length = FM_BUF_SZ;
512 fc->sgc.cur_offset = fc->sgc_offset
513 + ((u8 *)fc->scratch -
514 (u8 *)fi);
515 break;
516
517 case FMTSK_READCFG:
518no_cfg:
519 /*
520 * Mark the component header status for the image
521 * completed
522 */
523 ch->status = CH_STAT_SUCCESS;
524
525 /*
526 * The download is complete. If in degraded mode,
527 * attempt a chip reset.
528 */
529 if (a->flags & AF_DEGRADED_MODE)
530 esas2r_local_reset_adapter(a);
531
532 a->flash_ver = fi->cmp_hdr[CH_IT_BIOS].version;
533 esas2r_print_flash_rev(a);
534
535 /* Update the type of boot image on the card */
536 memcpy(a->image_type, fi->rel_version,
537 sizeof(fi->rel_version));
538 complete_fmapi_req(a, rq, FI_STAT_SUCCESS);
539 return;
540 }
541
542 /* If verifying, don't try reading more than what's there */
543 if (fc->func == VDA_FLASH_READ
544 && fc->sgc.length > fc->cmp_len)
545 fc->sgc.length = fc->cmp_len;
546 }
547
548 /* Build the request to perform the next action */
549 if (!load_image(a, rq)) {
550error:
551 if (fc->comp_typ < fi->num_comps) {
552 ch = &fi->cmp_hdr[fc->comp_typ];
553 ch->status = CH_STAT_FAILED;
554 }
555
556 complete_fmapi_req(a, rq, FI_STAT_FAILED);
557 }
558}
559
560/* Determine the flash image adaptyp for this adapter */
561static u8 get_fi_adap_type(struct esas2r_adapter *a)
562{
563 u8 type;
564
565 /* use the device ID to get the correct adap_typ for this HBA */
566 switch (a->pcid->device) {
567 case ATTO_DID_INTEL_IOP348:
568 type = FI_AT_SUN_LAKE;
569 break;
570
571 case ATTO_DID_MV_88RC9580:
572 case ATTO_DID_MV_88RC9580TS:
573 case ATTO_DID_MV_88RC9580TSE:
574 case ATTO_DID_MV_88RC9580TL:
575 type = FI_AT_MV_9580;
576 break;
577
578 default:
579 type = FI_AT_UNKNWN;
580 break;
581 }
582
583 return type;
584}
585
586/* Size of config + copyright + flash_ver images, 0 for failure. */
587static u32 chk_cfg(u8 *cfg, u32 length, u32 *flash_ver)
588{
589 u16 *pw = (u16 *)cfg - 1;
590 u32 sz = 0;
591 u32 len = length;
592
593 if (len == 0)
594 len = FM_BUF_SZ;
595
596 if (flash_ver)
597 *flash_ver = 0;
598
599 while (true) {
600 u16 type;
601 u16 size;
602
603 type = le16_to_cpu(*pw--);
604 size = le16_to_cpu(*pw--);
605
606 if (type != FBT_CPYR
607 && type != FBT_SETUP
608 && type != FBT_FLASH_VER)
609 break;
610
611 if (type == FBT_FLASH_VER
612 && flash_ver)
613 *flash_ver = le32_to_cpu(*(u32 *)(pw - 1));
614
615 sz += size + (2 * sizeof(u16));
616 pw -= size / sizeof(u16);
617
618 if (sz > len - (2 * sizeof(u16)))
619 break;
620 }
621
622 /* See if we are comparing the size to the specified length */
623 if (length && sz != length)
624 return 0;
625
626 return sz;
627}
628
629/* Verify that the boot image is valid */
630static u8 chk_boot(u8 *boot_img, u32 length)
631{
632 struct esas2r_boot_image *bi = (struct esas2r_boot_image *)boot_img;
633 u16 hdroffset = le16_to_cpu(bi->header_offset);
634 struct esas2r_boot_header *bh;
635
636 if (bi->signature != le16_to_cpu(0xaa55)
637 || (long)hdroffset >
638 (long)(65536L - sizeof(struct esas2r_boot_header))
639 || (hdroffset & 3)
640 || (hdroffset < sizeof(struct esas2r_boot_image))
641 || ((u32)hdroffset + sizeof(struct esas2r_boot_header) > length))
642 return 0xff;
643
644 bh = (struct esas2r_boot_header *)((char *)bi + hdroffset);
645
646 if (bh->signature[0] != 'P'
647 || bh->signature[1] != 'C'
648 || bh->signature[2] != 'I'
649 || bh->signature[3] != 'R'
650 || le16_to_cpu(bh->struct_length) <
651 (u16)sizeof(struct esas2r_boot_header)
652 || bh->class_code[2] != 0x01
653 || bh->class_code[1] != 0x04
654 || bh->class_code[0] != 0x00
655 || (bh->code_type != CODE_TYPE_PC
656 && bh->code_type != CODE_TYPE_OPEN
657 && bh->code_type != CODE_TYPE_EFI))
658 return 0xff;
659
660 return bh->code_type;
661}
662
663/* The sum of all the WORDS of the image */
664static u16 calc_fi_checksum(struct esas2r_flash_context *fc)
665{
666 struct esas2r_flash_img *fi = fc->fi;
667 u16 cksum;
668 u32 len;
669 u16 *pw;
670
671 for (len = (fi->length - fc->fi_hdr_len) / 2,
672 pw = (u16 *)((u8 *)fi + fc->fi_hdr_len),
673 cksum = 0;
674 len;
675 len--, pw++)
676 cksum = cksum + le16_to_cpu(*pw);
677
678 return cksum;
679}
680
681/*
682 * Verify the flash image structure. The following verifications will
683 * be performed:
684 * 1) verify the fi_version is correct
685 * 2) verify the checksum of the entire image.
686 * 3) validate the adap_typ, action and length fields.
687 * 4) valdiate each component header. check the img_type and
688 * length fields
689 * 5) valdiate each component image. validate signatures and
690 * local checksums
691 */
692static bool verify_fi(struct esas2r_adapter *a,
693 struct esas2r_flash_context *fc)
694{
695 struct esas2r_flash_img *fi = fc->fi;
696 u8 type;
697 bool imgerr;
698 u16 i;
699 u32 len;
700 struct esas2r_component_header *ch;
701
702 /* Verify the length - length must even since we do a word checksum */
703 len = fi->length;
704
705 if ((len & 1)
706 || len < fc->fi_hdr_len) {
707 fi->status = FI_STAT_LENGTH;
708 return false;
709 }
710
711 /* Get adapter type and verify type in flash image */
712 type = get_fi_adap_type(a);
713 if ((type == FI_AT_UNKNWN) || (fi->adap_typ != type)) {
714 fi->status = FI_STAT_ADAPTYP;
715 return false;
716 }
717
718 /*
719 * Loop through each component and verify the img_type and length
720 * fields. Keep a running count of the sizes sooze we can verify total
721 * size to additive size.
722 */
723 imgerr = false;
724
725 for (i = 0, len = 0, ch = fi->cmp_hdr;
726 i < fi->num_comps;
727 i++, ch++) {
728 bool cmperr = false;
729
730 /*
731 * Verify that the component header has the same index as the
732 * image type. The headers must be ordered correctly
733 */
734 if (i != ch->img_type) {
735 imgerr = true;
736 ch->status = CH_STAT_INVALID;
737 continue;
738 }
739
740 switch (ch->img_type) {
741 case CH_IT_BIOS:
742 type = CODE_TYPE_PC;
743 break;
744
745 case CH_IT_MAC:
746 type = CODE_TYPE_OPEN;
747 break;
748
749 case CH_IT_EFI:
750 type = CODE_TYPE_EFI;
751 break;
752 }
753
754 switch (ch->img_type) {
755 case CH_IT_FW:
756 case CH_IT_NVR:
757 break;
758
759 case CH_IT_BIOS:
760 case CH_IT_MAC:
761 case CH_IT_EFI:
762 if (ch->length & 0x1ff)
763 cmperr = true;
764
765 /* Test if component image is present */
766 if (ch->length == 0)
767 break;
768
769 /* Image is present - verify the image */
770 if (chk_boot((u8 *)fi + ch->image_offset, ch->length)
771 != type)
772 cmperr = true;
773
774 break;
775
776 case CH_IT_CFG:
777
778 /* Test if component image is present */
779 if (ch->length == 0) {
780 cmperr = true;
781 break;
782 }
783
784 /* Image is present - verify the image */
785 if (!chk_cfg((u8 *)fi + ch->image_offset + ch->length,
786 ch->length, NULL))
787 cmperr = true;
788
789 break;
790
791 default:
792
793 fi->status = FI_STAT_UNKNOWN;
794 return false;
795 }
796
797 if (cmperr) {
798 imgerr = true;
799 ch->status = CH_STAT_INVALID;
800 } else {
801 ch->status = CH_STAT_PENDING;
802 len += ch->length;
803 }
804 }
805
806 if (imgerr) {
807 fi->status = FI_STAT_MISSING;
808 return false;
809 }
810
811 /* Compare fi->length to the sum of ch->length fields */
812 if (len != fi->length - fc->fi_hdr_len) {
813 fi->status = FI_STAT_LENGTH;
814 return false;
815 }
816
817 /* Compute the checksum - it should come out zero */
818 if (fi->checksum != calc_fi_checksum(fc)) {
819 fi->status = FI_STAT_CHKSUM;
820 return false;
821 }
822
823 return true;
824}
825
826/* Fill in the FS IOCTL response data from a completed request. */
827static void esas2r_complete_fs_ioctl(struct esas2r_adapter *a,
828 struct esas2r_request *rq)
829{
830 struct esas2r_ioctl_fs *fs =
831 (struct esas2r_ioctl_fs *)rq->interrupt_cx;
832
833 if (rq->vrq->flash.sub_func == VDA_FLASH_COMMIT)
834 esas2r_enable_heartbeat(a);
835
836 fs->driver_error = rq->req_stat;
837
838 if (fs->driver_error == RS_SUCCESS)
839 fs->status = ATTO_STS_SUCCESS;
840 else
841 fs->status = ATTO_STS_FAILED;
842}
843
844/* Prepare an FS IOCTL request to be sent to the firmware. */
845bool esas2r_process_fs_ioctl(struct esas2r_adapter *a,
846 struct esas2r_ioctl_fs *fs,
847 struct esas2r_request *rq,
848 struct esas2r_sg_context *sgc)
849{
850 u8 cmdcnt = (u8)ARRAY_SIZE(cmd_to_fls_func);
851 struct esas2r_ioctlfs_command *fsc = &fs->command;
852 u8 func = 0;
853 u32 datalen;
854
855 fs->status = ATTO_STS_FAILED;
856 fs->driver_error = RS_PENDING;
857
858 if (fs->version > ESAS2R_FS_VER) {
859 fs->status = ATTO_STS_INV_VERSION;
860 return false;
861 }
862
64d29bd8
BG		 863 if (fsc->command >= cmdcnt) {
864 fs->status = ATTO_STS_INV_FUNC;
865 return false;
866 }
867
26780d9e 868 func = cmd_to_fls_func[fsc->command];
64d29bd8 869 if (func == 0xFF) {
26780d9e
BG		 870 fs->status = ATTO_STS_INV_FUNC;
871 return false;
872 }
873
874 if (fsc->command != ESAS2R_FS_CMD_CANCEL) {
875 if ((a->pcid->device != ATTO_DID_MV_88RC9580
876 || fs->adap_type != ESAS2R_FS_AT_ESASRAID2)
877 && (a->pcid->device != ATTO_DID_MV_88RC9580TS
878 || fs->adap_type != ESAS2R_FS_AT_TSSASRAID2)
879 && (a->pcid->device != ATTO_DID_MV_88RC9580TSE
880 || fs->adap_type != ESAS2R_FS_AT_TSSASRAID2E)
881 && (a->pcid->device != ATTO_DID_MV_88RC9580TL
882 || fs->adap_type != ESAS2R_FS_AT_TLSASHBA)) {
883 fs->status = ATTO_STS_INV_ADAPTER;
884 return false;
885 }
886
887 if (fs->driver_ver > ESAS2R_FS_DRVR_VER) {
888 fs->status = ATTO_STS_INV_DRVR_VER;
889 return false;
890 }
891 }
892
893 if (a->flags & AF_DEGRADED_MODE) {
894 fs->status = ATTO_STS_DEGRADED;
895 return false;
896 }
897
898 rq->interrupt_cb = esas2r_complete_fs_ioctl;
899 rq->interrupt_cx = fs;
900 datalen = le32_to_cpu(fsc->length);
901 esas2r_build_flash_req(a,
902 rq,
903 func,
904 fsc->checksum,
905 le32_to_cpu(fsc->flash_addr),
906 datalen);
907
908 if (func == VDA_FLASH_WRITE
909 || func == VDA_FLASH_READ) {
910 if (datalen == 0) {
911 fs->status = ATTO_STS_INV_FUNC;
912 return false;
913 }
914
915 esas2r_sgc_init(sgc, a, rq, rq->vrq->flash.data.sge);
916 sgc->length = datalen;
917
918 if (!esas2r_build_sg_list(a, rq, sgc)) {
919 fs->status = ATTO_STS_OUT_OF_RSRC;
920 return false;
921 }
922 }
923
924 if (func == VDA_FLASH_COMMIT)
925 esas2r_disable_heartbeat(a);
926
927 esas2r_start_request(a, rq);
928
929 return true;
930}
931
932static bool esas2r_flash_access(struct esas2r_adapter *a, u32 function)
933{
934 u32 starttime;
935 u32 timeout;
936 u32 intstat;
937 u32 doorbell;
938
939 /* Disable chip interrupts awhile */
940 if (function == DRBL_FLASH_REQ)
941 esas2r_disable_chip_interrupts(a);
942
943 /* Issue the request to the firmware */
944 esas2r_write_register_dword(a, MU_DOORBELL_IN, function);
945
946 /* Now wait for the firmware to process it */
947 starttime = jiffies_to_msecs(jiffies);
948 timeout = a->flags &
949 (AF_CHPRST_PENDING | AF_DISC_PENDING) ? 40000 : 5000;
950
951 while (true) {
952 intstat = esas2r_read_register_dword(a, MU_INT_STATUS_OUT);
953
954 if (intstat & MU_INTSTAT_DRBL) {
955 /* Got a doorbell interrupt. Check for the function */
956 doorbell =
957 esas2r_read_register_dword(a, MU_DOORBELL_OUT);
958 esas2r_write_register_dword(a, MU_DOORBELL_OUT,
959 doorbell);
960 if (doorbell & function)
961 break;
962 }
963
964 schedule_timeout_interruptible(msecs_to_jiffies(100));
965
966 if ((jiffies_to_msecs(jiffies) - starttime) > timeout) {
967 /*
968 * Iimeout. If we were requesting flash access,
969 * indicate we are done so the firmware knows we gave
970 * up. If this was a REQ, we also need to re-enable
971 * chip interrupts.
972 */
973 if (function == DRBL_FLASH_REQ) {
974 esas2r_hdebug("flash access timeout");
975 esas2r_write_register_dword(a, MU_DOORBELL_IN,
976 DRBL_FLASH_DONE);
977 esas2r_enable_chip_interrupts(a);
978 } else {
979 esas2r_hdebug("flash release timeout");
980 }
981
982 return false;
983 }
984 }
985
986 /* if we're done, re-enable chip interrupts */
987 if (function == DRBL_FLASH_DONE)
988 esas2r_enable_chip_interrupts(a);
989
990 return true;
991}
992
993#define WINDOW_SIZE ((signed int)MW_DATA_WINDOW_SIZE)
994
995bool esas2r_read_flash_block(struct esas2r_adapter *a,
996 void *to,
997 u32 from,
998 u32 size)
999{
1000 u8 *end = (u8 *)to;
1001
1002 /* Try to acquire access to the flash */
1003 if (!esas2r_flash_access(a, DRBL_FLASH_REQ))
1004 return false;
1005
1006 while (size) {
1007 u32 len;
1008 u32 offset;
1009 u32 iatvr;
1010
1011 if (a->flags2 & AF2_SERIAL_FLASH)
1012 iatvr = MW_DATA_ADDR_SER_FLASH + (from & -WINDOW_SIZE);
1013 else
1014 iatvr = MW_DATA_ADDR_PAR_FLASH + (from & -WINDOW_SIZE);
1015
1016 esas2r_map_data_window(a, iatvr);
1017 offset = from & (WINDOW_SIZE - 1);
1018 len = size;
1019
1020 if (len > WINDOW_SIZE - offset)
1021 len = WINDOW_SIZE - offset;
1022
1023 from += len;
1024 size -= len;
1025
1026 while (len--) {
1027 *end++ = esas2r_read_data_byte(a, offset);
1028 offset++;
1029 }
1030 }
1031
1032 /* Release flash access */
1033 esas2r_flash_access(a, DRBL_FLASH_DONE);
1034 return true;
1035}
1036
1037bool esas2r_read_flash_rev(struct esas2r_adapter *a)
1038{
1039 u8 bytes[256];
1040 u16 *pw;
1041 u16 *pwstart;
1042 u16 type;
1043 u16 size;
1044 u32 sz;
1045
1046 sz = sizeof(bytes);
1047 pw = (u16 *)(bytes + sz);
1048 pwstart = (u16 *)bytes + 2;
1049
1050 if (!esas2r_read_flash_block(a, bytes, FLS_OFFSET_CPYR - sz, sz))
1051 goto invalid_rev;
1052
1053 while (pw >= pwstart) {
1054 pw--;
1055 type = le16_to_cpu(*pw);
1056 pw--;
1057 size = le16_to_cpu(*pw);
1058 pw -= size / 2;
1059
1060 if (type == FBT_CPYR
1061 || type == FBT_SETUP
1062 || pw < pwstart)
1063 continue;
1064
1065 if (type == FBT_FLASH_VER)
1066 a->flash_ver = le32_to_cpu(*(u32 *)pw);
1067
1068 break;
1069 }
1070
1071invalid_rev:
1072 return esas2r_print_flash_rev(a);
1073}
1074
1075bool esas2r_print_flash_rev(struct esas2r_adapter *a)
1076{
1077 u16 year = LOWORD(a->flash_ver);
1078 u8 day = LOBYTE(HIWORD(a->flash_ver));
1079 u8 month = HIBYTE(HIWORD(a->flash_ver));
1080
1081 if (day == 0
1082 || month == 0
1083 || day > 31
1084 || month > 12
1085 || year < 2006
1086 || year > 9999) {
1087 strcpy(a->flash_rev, "not found");
1088 a->flash_ver = 0;
1089 return false;
1090 }
1091
1092 sprintf(a->flash_rev, "%02d/%02d/%04d", month, day, year);
1093 esas2r_hdebug("flash version: %s", a->flash_rev);
1094 return true;
1095}
1096
1097/*
1098 * Find the type of boot image type that is currently in the flash.
1099 * The chip only has a 64 KB PCI-e expansion ROM
1100 * size so only one image can be flashed at a time.
1101 */
1102bool esas2r_read_image_type(struct esas2r_adapter *a)
1103{
1104 u8 bytes[256];
1105 struct esas2r_boot_image *bi;
1106 struct esas2r_boot_header *bh;
1107 u32 sz;
1108 u32 len;
1109 u32 offset;
1110
1111 /* Start at the base of the boot images and look for a valid image */
1112 sz = sizeof(bytes);
1113 len = FLS_LENGTH_BOOT;
1114 offset = 0;
1115
1116 while (true) {
1117 if (!esas2r_read_flash_block(a, bytes, FLS_OFFSET_BOOT +
1118 offset,
1119 sz))
1120 goto invalid_rev;
1121
1122 bi = (struct esas2r_boot_image *)bytes;
1123 bh = (struct esas2r_boot_header *)((u8 *)bi +
1124 le16_to_cpu(
1125 bi->header_offset));
1126 if (bi->signature != cpu_to_le16(0xAA55))
1127 goto invalid_rev;
1128
1129 if (bh->code_type == CODE_TYPE_PC) {
1130 strcpy(a->image_type, "BIOS");
1131
1132 return true;
1133 } else if (bh->code_type == CODE_TYPE_EFI) {
1134 struct esas2r_efi_image *ei;
1135
1136 /*
1137 * So we have an EFI image. There are several types
1138 * so see which architecture we have.
1139 */
1140 ei = (struct esas2r_efi_image *)bytes;
1141
1142 switch (le16_to_cpu(ei->machine_type)) {
1143 case EFI_MACHINE_IA32:
1144 strcpy(a->image_type, "EFI 32-bit");
1145 return true;
1146
1147 case EFI_MACHINE_IA64:
1148 strcpy(a->image_type, "EFI itanium");
1149 return true;
1150
1151 case EFI_MACHINE_X64:
1152 strcpy(a->image_type, "EFI 64-bit");
1153 return true;
1154
1155 case EFI_MACHINE_EBC:
1156 strcpy(a->image_type, "EFI EBC");
1157 return true;
1158
1159 default:
1160 goto invalid_rev;
1161 }
1162 } else {
1163 u32 thislen;
1164
1165 /* jump to the next image */
1166 thislen = (u32)le16_to_cpu(bh->image_length) * 512;
1167 if (thislen == 0
1168 || thislen + offset > len
1169 || bh->indicator == INDICATOR_LAST)
1170 break;
1171
1172 offset += thislen;
1173 }
1174 }
1175
1176invalid_rev:
1177 strcpy(a->image_type, "no boot images");
1178 return false;
1179}
1180
1181/*
1182 * Read and validate current NVRAM parameters by accessing
1183 * physical NVRAM directly. if currently stored parameters are
1184 * invalid, use the defaults.
1185 */
1186bool esas2r_nvram_read_direct(struct esas2r_adapter *a)
1187{
1188 bool result;
1189
1190 if (down_interruptible(&a->nvram_semaphore))
1191 return false;
1192
1193 if (!esas2r_read_flash_block(a, a->nvram, FLS_OFFSET_NVR,
1194 sizeof(struct esas2r_sas_nvram))) {
1195 esas2r_hdebug("NVRAM read failed, using defaults");
1196 return false;
1197 }
1198
1199 result = esas2r_nvram_validate(a);
1200
1201 up(&a->nvram_semaphore);
1202
1203 return result;
1204}
1205
1206/* Interrupt callback to process NVRAM completions. */
1207static void esas2r_nvram_callback(struct esas2r_adapter *a,
1208 struct esas2r_request *rq)
1209{
1210 struct atto_vda_flash_req *vrq = &rq->vrq->flash;
1211
1212 if (rq->req_stat == RS_SUCCESS) {
1213 /* last request was successful. see what to do now. */
1214
1215 switch (vrq->sub_func) {
1216 case VDA_FLASH_BEGINW:
1217 vrq->sub_func = VDA_FLASH_WRITE;
1218 rq->req_stat = RS_PENDING;
1219 break;
1220
1221 case VDA_FLASH_WRITE:
1222 vrq->sub_func = VDA_FLASH_COMMIT;
1223 rq->req_stat = RS_PENDING;
1224 break;
1225
1226 case VDA_FLASH_READ:
1227 esas2r_nvram_validate(a);
1228 break;
1229
1230 case VDA_FLASH_COMMIT:
1231 default:
1232 break;
1233 }
1234 }
1235
1236 if (rq->req_stat != RS_PENDING) {
1237 /* update the NVRAM state */
1238 if (rq->req_stat == RS_SUCCESS)
1239 esas2r_lock_set_flags(&a->flags, AF_NVR_VALID);
1240 else
1241 esas2r_lock_clear_flags(&a->flags, AF_NVR_VALID);
1242
1243 esas2r_enable_heartbeat(a);
1244
1245 up(&a->nvram_semaphore);
1246 }
1247}
1248
1249/*
1250 * Write the contents of nvram to the adapter's physical NVRAM.
1251 * The cached copy of the NVRAM is also updated.
1252 */
1253bool esas2r_nvram_write(struct esas2r_adapter *a, struct esas2r_request *rq,
1254 struct esas2r_sas_nvram *nvram)
1255{
1256 struct esas2r_sas_nvram *n = nvram;
1257 u8 sas_address_bytes[8];
1258 u32 *sas_address_dwords = (u32 *)&sas_address_bytes[0];
1259 struct atto_vda_flash_req *vrq = &rq->vrq->flash;
1260
1261 if (a->flags & AF_DEGRADED_MODE)
1262 return false;
1263
1264 if (down_interruptible(&a->nvram_semaphore))
1265 return false;
1266
1267 if (n == NULL)
1268 n = a->nvram;
1269
1270 /* check the validity of the settings */
1271 if (n->version > SASNVR_VERSION) {
1272 up(&a->nvram_semaphore);
1273 return false;
1274 }
1275
1276 memcpy(&sas_address_bytes[0], n->sas_addr, 8);
1277
1278 if (sas_address_bytes[0] != 0x50
1279 || sas_address_bytes[1] != 0x01
1280 || sas_address_bytes[2] != 0x08
1281 || (sas_address_bytes[3] & 0xF0) != 0x60
1282 || ((sas_address_bytes[3] & 0x0F) | sas_address_dwords[1]) == 0) {
1283 up(&a->nvram_semaphore);
1284 return false;
1285 }
1286
1287 if (n->spin_up_delay > SASNVR_SPINUP_MAX)
1288 n->spin_up_delay = SASNVR_SPINUP_MAX;
1289
1290 n->version = SASNVR_VERSION;
1291 n->checksum = n->checksum - esas2r_nvramcalc_cksum(n);
1292 memcpy(a->nvram, n, sizeof(struct esas2r_sas_nvram));
1293
1294 /* write the NVRAM */
1295 n = a->nvram;
1296 esas2r_disable_heartbeat(a);
1297
1298 esas2r_build_flash_req(a,
1299 rq,
1300 VDA_FLASH_BEGINW,
1301 esas2r_nvramcalc_xor_cksum(n),
1302 FLS_OFFSET_NVR,
1303 sizeof(struct esas2r_sas_nvram));
1304
1305 if (a->flags & AF_LEGACY_SGE_MODE) {
1306
1307 vrq->data.sge[0].length =
1308 cpu_to_le32(SGE_LAST |
1309 sizeof(struct esas2r_sas_nvram));
1310 vrq->data.sge[0].address = cpu_to_le64(
1311 a->uncached_phys + (u64)((u8 *)n - a->uncached));
1312 } else {
1313 vrq->data.prde[0].ctl_len =
1314 cpu_to_le32(sizeof(struct esas2r_sas_nvram));
1315 vrq->data.prde[0].address = cpu_to_le64(
1316 a->uncached_phys
1317 + (u64)((u8 *)n - a->uncached));
1318 }
1319 rq->interrupt_cb = esas2r_nvram_callback;
1320 esas2r_start_request(a, rq);
1321 return true;
1322}
1323
1324/* Validate the cached NVRAM. if the NVRAM is invalid, load the defaults. */
1325bool esas2r_nvram_validate(struct esas2r_adapter *a)
1326{
1327 struct esas2r_sas_nvram *n = a->nvram;
1328 bool rslt = false;
1329
1330 if (n->signature[0] != 'E'
1331 || n->signature[1] != 'S'
1332 || n->signature[2] != 'A'
1333 || n->signature[3] != 'S') {
1334 esas2r_hdebug("invalid NVRAM signature");
1335 } else if (esas2r_nvramcalc_cksum(n)) {
1336 esas2r_hdebug("invalid NVRAM checksum");
1337 } else if (n->version > SASNVR_VERSION) {
1338 esas2r_hdebug("invalid NVRAM version");
1339 } else {
1340 esas2r_lock_set_flags(&a->flags, AF_NVR_VALID);
1341 rslt = true;
1342 }
1343
1344 if (rslt == false) {
1345 esas2r_hdebug("using defaults");
1346 esas2r_nvram_set_defaults(a);
1347 }
1348
1349 return rslt;
1350}
1351
1352/*
1353 * Set the cached NVRAM to defaults. note that this function sets the default
1354 * NVRAM when it has been determined that the physical NVRAM is invalid.
1355 * In this case, the SAS address is fabricated.
1356 */
1357void esas2r_nvram_set_defaults(struct esas2r_adapter *a)
1358{
1359 struct esas2r_sas_nvram *n = a->nvram;
1360 u32 time = jiffies_to_msecs(jiffies);
1361
1362 esas2r_lock_clear_flags(&a->flags, AF_NVR_VALID);
ef11851b 1363 *n = default_sas_nvram;
26780d9e
BG		 1364 n->sas_addr[3] |= 0x0F;
1365 n->sas_addr[4] = HIBYTE(LOWORD(time));
1366 n->sas_addr[5] = LOBYTE(LOWORD(time));
1367 n->sas_addr[6] = a->pcid->bus->number;
1368 n->sas_addr[7] = a->pcid->devfn;
1369}
1370
1371void esas2r_nvram_get_defaults(struct esas2r_adapter *a,
1372 struct esas2r_sas_nvram *nvram)
1373{
1374 u8 sas_addr[8];
1375
1376 /*
1377 * in case we are copying the defaults into the adapter, copy the SAS
1378 * address out first.
1379 */
1380 memcpy(&sas_addr[0], a->nvram->sas_addr, 8);
ef11851b 1381 *nvram = default_sas_nvram;
26780d9e
BG		 1382 memcpy(&nvram->sas_addr[0], &sas_addr[0], 8);
1383}
1384
1385bool esas2r_fm_api(struct esas2r_adapter *a, struct esas2r_flash_img *fi,
1386 struct esas2r_request *rq, struct esas2r_sg_context *sgc)
1387{
1388 struct esas2r_flash_context *fc = &a->flash_context;
1389 u8 j;
1390 struct esas2r_component_header *ch;
1391
1392 if (esas2r_lock_set_flags(&a->flags, AF_FLASH_LOCK) & AF_FLASH_LOCK) {
1393 /* flag was already set */
1394 fi->status = FI_STAT_BUSY;
1395 return false;
1396 }
1397
1398 memcpy(&fc->sgc, sgc, sizeof(struct esas2r_sg_context));
1399 sgc = &fc->sgc;
1400 fc->fi = fi;
1401 fc->sgc_offset = sgc->cur_offset;
1402 rq->req_stat = RS_SUCCESS;
1403 rq->interrupt_cx = fc;
1404
1405 switch (fi->fi_version) {
1406 case FI_VERSION_1:
1407 fc->scratch = ((struct esas2r_flash_img *)fi)->scratch_buf;
1408 fc->num_comps = FI_NUM_COMPS_V1;
1409 fc->fi_hdr_len = sizeof(struct esas2r_flash_img);
1410 break;
1411
1412 default:
1413 return complete_fmapi_req(a, rq, FI_STAT_IMG_VER);
1414 }
1415
1416 if (a->flags & AF_DEGRADED_MODE)
1417 return complete_fmapi_req(a, rq, FI_STAT_DEGRADED);
1418
1419 switch (fi->action) {
1420 case FI_ACT_DOWN: /* Download the components */
1421 /* Verify the format of the flash image */
1422 if (!verify_fi(a, fc))
1423 return complete_fmapi_req(a, rq, fi->status);
1424
1425 /* Adjust the BIOS fields that are dependent on the HBA */
1426 ch = &fi->cmp_hdr[CH_IT_BIOS];
1427
1428 if (ch->length)
1429 fix_bios(a, fi);
1430
1431 /* Adjust the EFI fields that are dependent on the HBA */
1432 ch = &fi->cmp_hdr[CH_IT_EFI];
1433
1434 if (ch->length)
1435 fix_efi(a, fi);
1436
1437 /*
1438 * Since the image was just modified, compute the checksum on
1439 * the modified image. First update the CRC for the composite
1440 * expansion ROM image.
1441 */
1442 fi->checksum = calc_fi_checksum(fc);
1443
1444 /* Disable the heartbeat */
1445 esas2r_disable_heartbeat(a);
1446
1447 /* Now start up the download sequence */
1448 fc->task = FMTSK_ERASE_BOOT;
1449 fc->func = VDA_FLASH_BEGINW;
1450 fc->comp_typ = CH_IT_CFG;
1451 fc->flsh_addr = FLS_OFFSET_BOOT;
1452 fc->sgc.length = FLS_LENGTH_BOOT;
1453 fc->sgc.cur_offset = NULL;
1454
1455 /* Setup the callback address */
1456 fc->interrupt_cb = fw_download_proc;
1457 break;
1458
1459 case FI_ACT_UPSZ: /* Get upload sizes */
1460 fi->adap_typ = get_fi_adap_type(a);
1461 fi->flags = 0;
1462 fi->num_comps = fc->num_comps;
1463 fi->length = fc->fi_hdr_len;
1464
1465 /* Report the type of boot image in the rel_version string */
1466 memcpy(fi->rel_version, a->image_type,
1467 sizeof(fi->rel_version));
1468
1469 /* Build the component headers */
1470 for (j = 0, ch = fi->cmp_hdr;
1471 j < fi->num_comps;
1472 j++, ch++) {
1473 ch->img_type = j;
1474 ch->status = CH_STAT_PENDING;
1475 ch->length = 0;
1476 ch->version = 0xffffffff;
1477 ch->image_offset = 0;
1478 ch->pad[0] = 0;
1479 ch->pad[1] = 0;
1480 }
1481
1482 if (a->flash_ver != 0) {
1483 fi->cmp_hdr[CH_IT_BIOS].version =
1484 fi->cmp_hdr[CH_IT_MAC].version =
1485 fi->cmp_hdr[CH_IT_EFI].version =
1486 fi->cmp_hdr[CH_IT_CFG].version
1487 = a->flash_ver;
1488
1489 fi->cmp_hdr[CH_IT_BIOS].status =
1490 fi->cmp_hdr[CH_IT_MAC].status =
1491 fi->cmp_hdr[CH_IT_EFI].status =
1492 fi->cmp_hdr[CH_IT_CFG].status =
1493 CH_STAT_SUCCESS;
1494
1495 return complete_fmapi_req(a, rq, FI_STAT_SUCCESS);
1496 }
1497
1498 /* fall through */
1499
1500 case FI_ACT_UP: /* Upload the components */
1501 default:
1502 return complete_fmapi_req(a, rq, FI_STAT_INVALID);
1503 }
1504
1505 /*
1506 * If we make it here, fc has been setup to do the first task. Call
1507 * load_image to format the request, start it, and get out. The
1508 * interrupt code will call the callback when the first message is
1509 * complete.
1510 */
1511 if (!load_image(a, rq))
1512 return complete_fmapi_req(a, rq, FI_STAT_FAILED);
1513
1514 esas2r_start_request(a, rq);
1515
1516 return true;
1517}
Linux kernel - Deliverables
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