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treewide: remove redundant IS_ERR() before error code check
[linux/fpc-iii.git] / drivers / scsi / esas2r / esas2r_flash.c
blobb02ac389e6c6050fc92696d480131db15678ebb4
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
57 static 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
88 static 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
97 static 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
122 static 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. */
133 static 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:
152 commit:
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 */
176 static 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 */
227 static 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 (test_bit(AF_DEGRADED_MODE, &a->flags))
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. */
243 static 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
275 static 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. */
302 static 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 clear_bit(AF_FLASH_LOCK, &a->flags);
319 return false;
320 }
321
322 /* Process each phase of the flash download process. */
323 static 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:
413 no_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:
448 no_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:
484 no_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:
518 no_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 (test_bit(AF_DEGRADED_MODE, &a->flags))
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)) {
550 error:
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 */
561 static 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. */
587 static 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 */
630 static 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 */
664 static 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) validate each component header. check the img_type and
688 * length fields
689 * 5) validate each component image. validate signatures and
690 * local checksums
691 */
692 static 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. */
827 static 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. */
845 bool 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
863 if (fsc->command >= cmdcnt) {
864 fs->status = ATTO_STS_INV_FUNC;
865 return false;
866 }
867
868 func = cmd_to_fls_func[fsc->command];
869 if (func == 0xFF) {
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 (test_bit(AF_DEGRADED_MODE, &a->flags)) {
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
932 static 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
949 if (test_bit(AF_CHPRST_PENDING, &a->flags) ||
950 test_bit(AF_DISC_PENDING, &a->flags))
951 timeout = 40000;
952 else
953 timeout = 5000;
954
955 while (true) {
956 intstat = esas2r_read_register_dword(a, MU_INT_STATUS_OUT);
957
958 if (intstat & MU_INTSTAT_DRBL) {
959 /* Got a doorbell interrupt. Check for the function */
960 doorbell =
961 esas2r_read_register_dword(a, MU_DOORBELL_OUT);
962 esas2r_write_register_dword(a, MU_DOORBELL_OUT,
963 doorbell);
964 if (doorbell & function)
965 break;
966 }
967
968 schedule_timeout_interruptible(msecs_to_jiffies(100));
969
970 if ((jiffies_to_msecs(jiffies) - starttime) > timeout) {
971 /*
972 * Iimeout. If we were requesting flash access,
973 * indicate we are done so the firmware knows we gave
974 * up. If this was a REQ, we also need to re-enable
975 * chip interrupts.
976 */
977 if (function == DRBL_FLASH_REQ) {
978 esas2r_hdebug("flash access timeout");
979 esas2r_write_register_dword(a, MU_DOORBELL_IN,
980 DRBL_FLASH_DONE);
981 esas2r_enable_chip_interrupts(a);
982 } else {
983 esas2r_hdebug("flash release timeout");
984 }
985
986 return false;
987 }
988 }
989
990 /* if we're done, re-enable chip interrupts */
991 if (function == DRBL_FLASH_DONE)
992 esas2r_enable_chip_interrupts(a);
993
994 return true;
995 }
996
997 #define WINDOW_SIZE ((signed int)MW_DATA_WINDOW_SIZE)
998
999 bool esas2r_read_flash_block(struct esas2r_adapter *a,
1000 void *to,
1001 u32 from,
1002 u32 size)
1003 {
1004 u8 *end = (u8 *)to;
1005
1006 /* Try to acquire access to the flash */
1007 if (!esas2r_flash_access(a, DRBL_FLASH_REQ))
1008 return false;
1009
1010 while (size) {
1011 u32 len;
1012 u32 offset;
1013 u32 iatvr;
1014
1015 if (test_bit(AF2_SERIAL_FLASH, &a->flags2))
1016 iatvr = MW_DATA_ADDR_SER_FLASH + (from & -WINDOW_SIZE);
1017 else
1018 iatvr = MW_DATA_ADDR_PAR_FLASH + (from & -WINDOW_SIZE);
1019
1020 esas2r_map_data_window(a, iatvr);
1021 offset = from & (WINDOW_SIZE - 1);
1022 len = size;
1023
1024 if (len > WINDOW_SIZE - offset)
1025 len = WINDOW_SIZE - offset;
1026
1027 from += len;
1028 size -= len;
1029
1030 while (len--) {
1031 *end++ = esas2r_read_data_byte(a, offset);
1032 offset++;
1033 }
1034 }
1035
1036 /* Release flash access */
1037 esas2r_flash_access(a, DRBL_FLASH_DONE);
1038 return true;
1039 }
1040
1041 bool esas2r_read_flash_rev(struct esas2r_adapter *a)
1042 {
1043 u8 bytes[256];
1044 u16 *pw;
1045 u16 *pwstart;
1046 u16 type;
1047 u16 size;
1048 u32 sz;
1049
1050 sz = sizeof(bytes);
1051 pw = (u16 *)(bytes + sz);
1052 pwstart = (u16 *)bytes + 2;
1053
1054 if (!esas2r_read_flash_block(a, bytes, FLS_OFFSET_CPYR - sz, sz))
1055 goto invalid_rev;
1056
1057 while (pw >= pwstart) {
1058 pw--;
1059 type = le16_to_cpu(*pw);
1060 pw--;
1061 size = le16_to_cpu(*pw);
1062 pw -= size / 2;
1063
1064 if (type == FBT_CPYR
1065 || type == FBT_SETUP
1066 || pw < pwstart)
1067 continue;
1068
1069 if (type == FBT_FLASH_VER)
1070 a->flash_ver = le32_to_cpu(*(u32 *)pw);
1071
1072 break;
1073 }
1074
1075 invalid_rev:
1076 return esas2r_print_flash_rev(a);
1077 }
1078
1079 bool esas2r_print_flash_rev(struct esas2r_adapter *a)
1080 {
1081 u16 year = LOWORD(a->flash_ver);
1082 u8 day = LOBYTE(HIWORD(a->flash_ver));
1083 u8 month = HIBYTE(HIWORD(a->flash_ver));
1084
1085 if (day == 0
1086 || month == 0
1087 || day > 31
1088 || month > 12
1089 || year < 2006
1090 || year > 9999) {
1091 strcpy(a->flash_rev, "not found");
1092 a->flash_ver = 0;
1093 return false;
1094 }
1095
1096 sprintf(a->flash_rev, "%02d/%02d/%04d", month, day, year);
1097 esas2r_hdebug("flash version: %s", a->flash_rev);
1098 return true;
1099 }
1100
1101 /*
1102 * Find the type of boot image type that is currently in the flash.
1103 * The chip only has a 64 KB PCI-e expansion ROM
1104 * size so only one image can be flashed at a time.
1105 */
1106 bool esas2r_read_image_type(struct esas2r_adapter *a)
1107 {
1108 u8 bytes[256];
1109 struct esas2r_boot_image *bi;
1110 struct esas2r_boot_header *bh;
1111 u32 sz;
1112 u32 len;
1113 u32 offset;
1114
1115 /* Start at the base of the boot images and look for a valid image */
1116 sz = sizeof(bytes);
1117 len = FLS_LENGTH_BOOT;
1118 offset = 0;
1119
1120 while (true) {
1121 if (!esas2r_read_flash_block(a, bytes, FLS_OFFSET_BOOT +
1122 offset,
1123 sz))
1124 goto invalid_rev;
1125
1126 bi = (struct esas2r_boot_image *)bytes;
1127 bh = (struct esas2r_boot_header *)((u8 *)bi +
1128 le16_to_cpu(
1129 bi->header_offset));
1130 if (bi->signature != cpu_to_le16(0xAA55))
1131 goto invalid_rev;
1132
1133 if (bh->code_type == CODE_TYPE_PC) {
1134 strcpy(a->image_type, "BIOS");
1135
1136 return true;
1137 } else if (bh->code_type == CODE_TYPE_EFI) {
1138 struct esas2r_efi_image *ei;
1139
1140 /*
1141 * So we have an EFI image. There are several types
1142 * so see which architecture we have.
1143 */
1144 ei = (struct esas2r_efi_image *)bytes;
1145
1146 switch (le16_to_cpu(ei->machine_type)) {
1147 case EFI_MACHINE_IA32:
1148 strcpy(a->image_type, "EFI 32-bit");
1149 return true;
1150
1151 case EFI_MACHINE_IA64:
1152 strcpy(a->image_type, "EFI itanium");
1153 return true;
1154
1155 case EFI_MACHINE_X64:
1156 strcpy(a->image_type, "EFI 64-bit");
1157 return true;
1158
1159 case EFI_MACHINE_EBC:
1160 strcpy(a->image_type, "EFI EBC");
1161 return true;
1162
1163 default:
1164 goto invalid_rev;
1165 }
1166 } else {
1167 u32 thislen;
1168
1169 /* jump to the next image */
1170 thislen = (u32)le16_to_cpu(bh->image_length) * 512;
1171 if (thislen == 0
1172 || thislen + offset > len
1173 || bh->indicator == INDICATOR_LAST)
1174 break;
1175
1176 offset += thislen;
1177 }
1178 }
1179
1180 invalid_rev:
1181 strcpy(a->image_type, "no boot images");
1182 return false;
1183 }
1184
1185 /*
1186 * Read and validate current NVRAM parameters by accessing
1187 * physical NVRAM directly. if currently stored parameters are
1188 * invalid, use the defaults.
1189 */
1190 bool esas2r_nvram_read_direct(struct esas2r_adapter *a)
1191 {
1192 bool result;
1193
1194 if (down_interruptible(&a->nvram_semaphore))
1195 return false;
1196
1197 if (!esas2r_read_flash_block(a, a->nvram, FLS_OFFSET_NVR,
1198 sizeof(struct esas2r_sas_nvram))) {
1199 esas2r_hdebug("NVRAM read failed, using defaults");
1200 up(&a->nvram_semaphore);
1201 return false;
1202 }
1203
1204 result = esas2r_nvram_validate(a);
1205
1206 up(&a->nvram_semaphore);
1207
1208 return result;
1209 }
1210
1211 /* Interrupt callback to process NVRAM completions. */
1212 static void esas2r_nvram_callback(struct esas2r_adapter *a,
1213 struct esas2r_request *rq)
1214 {
1215 struct atto_vda_flash_req *vrq = &rq->vrq->flash;
1216
1217 if (rq->req_stat == RS_SUCCESS) {
1218 /* last request was successful. see what to do now. */
1219
1220 switch (vrq->sub_func) {
1221 case VDA_FLASH_BEGINW:
1222 vrq->sub_func = VDA_FLASH_WRITE;
1223 rq->req_stat = RS_PENDING;
1224 break;
1225
1226 case VDA_FLASH_WRITE:
1227 vrq->sub_func = VDA_FLASH_COMMIT;
1228 rq->req_stat = RS_PENDING;
1229 break;
1230
1231 case VDA_FLASH_READ:
1232 esas2r_nvram_validate(a);
1233 break;
1234
1235 case VDA_FLASH_COMMIT:
1236 default:
1237 break;
1238 }
1239 }
1240
1241 if (rq->req_stat != RS_PENDING) {
1242 /* update the NVRAM state */
1243 if (rq->req_stat == RS_SUCCESS)
1244 set_bit(AF_NVR_VALID, &a->flags);
1245 else
1246 clear_bit(AF_NVR_VALID, &a->flags);
1247
1248 esas2r_enable_heartbeat(a);
1249
1250 up(&a->nvram_semaphore);
1251 }
1252 }
1253
1254 /*
1255 * Write the contents of nvram to the adapter's physical NVRAM.
1256 * The cached copy of the NVRAM is also updated.
1257 */
1258 bool esas2r_nvram_write(struct esas2r_adapter *a, struct esas2r_request *rq,
1259 struct esas2r_sas_nvram *nvram)
1260 {
1261 struct esas2r_sas_nvram *n = nvram;
1262 u8 sas_address_bytes[8];
1263 u32 *sas_address_dwords = (u32 *)&sas_address_bytes[0];
1264 struct atto_vda_flash_req *vrq = &rq->vrq->flash;
1265
1266 if (test_bit(AF_DEGRADED_MODE, &a->flags))
1267 return false;
1268
1269 if (down_interruptible(&a->nvram_semaphore))
1270 return false;
1271
1272 if (n == NULL)
1273 n = a->nvram;
1274
1275 /* check the validity of the settings */
1276 if (n->version > SASNVR_VERSION) {
1277 up(&a->nvram_semaphore);
1278 return false;
1279 }
1280
1281 memcpy(&sas_address_bytes[0], n->sas_addr, 8);
1282
1283 if (sas_address_bytes[0] != 0x50
1284 || sas_address_bytes[1] != 0x01
1285 || sas_address_bytes[2] != 0x08
1286 || (sas_address_bytes[3] & 0xF0) != 0x60
1287 || ((sas_address_bytes[3] & 0x0F) | sas_address_dwords[1]) == 0) {
1288 up(&a->nvram_semaphore);
1289 return false;
1290 }
1291
1292 if (n->spin_up_delay > SASNVR_SPINUP_MAX)
1293 n->spin_up_delay = SASNVR_SPINUP_MAX;
1294
1295 n->version = SASNVR_VERSION;
1296 n->checksum = n->checksum - esas2r_nvramcalc_cksum(n);
1297 memcpy(a->nvram, n, sizeof(struct esas2r_sas_nvram));
1298
1299 /* write the NVRAM */
1300 n = a->nvram;
1301 esas2r_disable_heartbeat(a);
1302
1303 esas2r_build_flash_req(a,
1304 rq,
1305 VDA_FLASH_BEGINW,
1306 esas2r_nvramcalc_xor_cksum(n),
1307 FLS_OFFSET_NVR,
1308 sizeof(struct esas2r_sas_nvram));
1309
1310 if (test_bit(AF_LEGACY_SGE_MODE, &a->flags)) {
1311
1312 vrq->data.sge[0].length =
1313 cpu_to_le32(SGE_LAST |
1314 sizeof(struct esas2r_sas_nvram));
1315 vrq->data.sge[0].address = cpu_to_le64(
1316 a->uncached_phys + (u64)((u8 *)n - a->uncached));
1317 } else {
1318 vrq->data.prde[0].ctl_len =
1319 cpu_to_le32(sizeof(struct esas2r_sas_nvram));
1320 vrq->data.prde[0].address = cpu_to_le64(
1321 a->uncached_phys
1322 + (u64)((u8 *)n - a->uncached));
1323 }
1324 rq->interrupt_cb = esas2r_nvram_callback;
1325 esas2r_start_request(a, rq);
1326 return true;
1327 }
1328
1329 /* Validate the cached NVRAM. if the NVRAM is invalid, load the defaults. */
1330 bool esas2r_nvram_validate(struct esas2r_adapter *a)
1331 {
1332 struct esas2r_sas_nvram *n = a->nvram;
1333 bool rslt = false;
1334
1335 if (n->signature[0] != 'E'
1336 || n->signature[1] != 'S'
1337 || n->signature[2] != 'A'
1338 || n->signature[3] != 'S') {
1339 esas2r_hdebug("invalid NVRAM signature");
1340 } else if (esas2r_nvramcalc_cksum(n)) {
1341 esas2r_hdebug("invalid NVRAM checksum");
1342 } else if (n->version > SASNVR_VERSION) {
1343 esas2r_hdebug("invalid NVRAM version");
1344 } else {
1345 set_bit(AF_NVR_VALID, &a->flags);
1346 rslt = true;
1347 }
1348
1349 if (rslt == false) {
1350 esas2r_hdebug("using defaults");
1351 esas2r_nvram_set_defaults(a);
1352 }
1353
1354 return rslt;
1355 }
1356
1357 /*
1358 * Set the cached NVRAM to defaults. note that this function sets the default
1359 * NVRAM when it has been determined that the physical NVRAM is invalid.
1360 * In this case, the SAS address is fabricated.
1361 */
1362 void esas2r_nvram_set_defaults(struct esas2r_adapter *a)
1363 {
1364 struct esas2r_sas_nvram *n = a->nvram;
1365 u32 time = jiffies_to_msecs(jiffies);
1366
1367 clear_bit(AF_NVR_VALID, &a->flags);
1368 *n = default_sas_nvram;
1369 n->sas_addr[3] |= 0x0F;
1370 n->sas_addr[4] = HIBYTE(LOWORD(time));
1371 n->sas_addr[5] = LOBYTE(LOWORD(time));
1372 n->sas_addr[6] = a->pcid->bus->number;
1373 n->sas_addr[7] = a->pcid->devfn;
1374 }
1375
1376 void esas2r_nvram_get_defaults(struct esas2r_adapter *a,
1377 struct esas2r_sas_nvram *nvram)
1378 {
1379 u8 sas_addr[8];
1380
1381 /*
1382 * in case we are copying the defaults into the adapter, copy the SAS
1383 * address out first.
1384 */
1385 memcpy(&sas_addr[0], a->nvram->sas_addr, 8);
1386 *nvram = default_sas_nvram;
1387 memcpy(&nvram->sas_addr[0], &sas_addr[0], 8);
1388 }
1389
1390 bool esas2r_fm_api(struct esas2r_adapter *a, struct esas2r_flash_img *fi,
1391 struct esas2r_request *rq, struct esas2r_sg_context *sgc)
1392 {
1393 struct esas2r_flash_context *fc = &a->flash_context;
1394 u8 j;
1395 struct esas2r_component_header *ch;
1396
1397 if (test_and_set_bit(AF_FLASH_LOCK, &a->flags)) {
1398 /* flag was already set */
1399 fi->status = FI_STAT_BUSY;
1400 return false;
1401 }
1402
1403 memcpy(&fc->sgc, sgc, sizeof(struct esas2r_sg_context));
1404 sgc = &fc->sgc;
1405 fc->fi = fi;
1406 fc->sgc_offset = sgc->cur_offset;
1407 rq->req_stat = RS_SUCCESS;
1408 rq->interrupt_cx = fc;
1409
1410 switch (fi->fi_version) {
1411 case FI_VERSION_1:
1412 fc->scratch = ((struct esas2r_flash_img *)fi)->scratch_buf;
1413 fc->num_comps = FI_NUM_COMPS_V1;
1414 fc->fi_hdr_len = sizeof(struct esas2r_flash_img);
1415 break;
1416
1417 default:
1418 return complete_fmapi_req(a, rq, FI_STAT_IMG_VER);
1419 }
1420
1421 if (test_bit(AF_DEGRADED_MODE, &a->flags))
1422 return complete_fmapi_req(a, rq, FI_STAT_DEGRADED);
1423
1424 switch (fi->action) {
1425 case FI_ACT_DOWN: /* Download the components */
1426 /* Verify the format of the flash image */
1427 if (!verify_fi(a, fc))
1428 return complete_fmapi_req(a, rq, fi->status);
1429
1430 /* Adjust the BIOS fields that are dependent on the HBA */
1431 ch = &fi->cmp_hdr[CH_IT_BIOS];
1432
1433 if (ch->length)
1434 fix_bios(a, fi);
1435
1436 /* Adjust the EFI fields that are dependent on the HBA */
1437 ch = &fi->cmp_hdr[CH_IT_EFI];
1438
1439 if (ch->length)
1440 fix_efi(a, fi);
1441
1442 /*
1443 * Since the image was just modified, compute the checksum on
1444 * the modified image. First update the CRC for the composite
1445 * expansion ROM image.
1446 */
1447 fi->checksum = calc_fi_checksum(fc);
1448
1449 /* Disable the heartbeat */
1450 esas2r_disable_heartbeat(a);
1451
1452 /* Now start up the download sequence */
1453 fc->task = FMTSK_ERASE_BOOT;
1454 fc->func = VDA_FLASH_BEGINW;
1455 fc->comp_typ = CH_IT_CFG;
1456 fc->flsh_addr = FLS_OFFSET_BOOT;
1457 fc->sgc.length = FLS_LENGTH_BOOT;
1458 fc->sgc.cur_offset = NULL;
1459
1460 /* Setup the callback address */
1461 fc->interrupt_cb = fw_download_proc;
1462 break;
1463
1464 case FI_ACT_UPSZ: /* Get upload sizes */
1465 fi->adap_typ = get_fi_adap_type(a);
1466 fi->flags = 0;
1467 fi->num_comps = fc->num_comps;
1468 fi->length = fc->fi_hdr_len;
1469
1470 /* Report the type of boot image in the rel_version string */
1471 memcpy(fi->rel_version, a->image_type,
1472 sizeof(fi->rel_version));
1473
1474 /* Build the component headers */
1475 for (j = 0, ch = fi->cmp_hdr;
1476 j < fi->num_comps;
1477 j++, ch++) {
1478 ch->img_type = j;
1479 ch->status = CH_STAT_PENDING;
1480 ch->length = 0;
1481 ch->version = 0xffffffff;
1482 ch->image_offset = 0;
1483 ch->pad[0] = 0;
1484 ch->pad[1] = 0;
1485 }
1486
1487 if (a->flash_ver != 0) {
1488 fi->cmp_hdr[CH_IT_BIOS].version =
1489 fi->cmp_hdr[CH_IT_MAC].version =
1490 fi->cmp_hdr[CH_IT_EFI].version =
1491 fi->cmp_hdr[CH_IT_CFG].version
1492 = a->flash_ver;
1493
1494 fi->cmp_hdr[CH_IT_BIOS].status =
1495 fi->cmp_hdr[CH_IT_MAC].status =
1496 fi->cmp_hdr[CH_IT_EFI].status =
1497 fi->cmp_hdr[CH_IT_CFG].status =
1498 CH_STAT_SUCCESS;
1499
1500 return complete_fmapi_req(a, rq, FI_STAT_SUCCESS);
1501 }
1502
1503 /* fall through */
1504
1505 case FI_ACT_UP: /* Upload the components */
1506 default:
1507 return complete_fmapi_req(a, rq, FI_STAT_INVALID);
1508 }
1509
1510 /*
1511 * If we make it here, fc has been setup to do the first task. Call
1512 * load_image to format the request, start it, and get out. The
1513 * interrupt code will call the callback when the first message is
1514 * complete.
1515 */
1516 if (!load_image(a, rq))
1517 return complete_fmapi_req(a, rq, FI_STAT_FAILED);
1518
1519 esas2r_start_request(a, rq);
1520
1521 return true;
1522 }
Linux with added FPC-III support