SAFE public projects git trees. - safe/jmp/linux-2.6/blob - drivers/scsi/qla2xxx/qla_sup.c

   1 /*
   2  * QLogic Fibre Channel HBA Driver
   3  * Copyright (c)  2003-2008 QLogic Corporation
   4  *
   5  * See LICENSE.qla2xxx for copyright and licensing details.
   6  */
   7 #include "qla_def.h"
   8
   9 #include <linux/delay.h>
  10 #include <linux/vmalloc.h>
  11 #include <asm/uaccess.h>
  12
  13 static uint16_t qla2x00_nvram_request(scsi_qla_host_t *, uint32_t);
  14 static void qla2x00_nv_deselect(scsi_qla_host_t *);
  15 static void qla2x00_nv_write(scsi_qla_host_t *, uint16_t);
  16
  17 /*
  18  * NVRAM support routines
  19  */
  20
  21 /**
  22  * qla2x00_lock_nvram_access() -
  23  * @ha: HA context
  24  */
  25 static void
  26 qla2x00_lock_nvram_access(scsi_qla_host_t *ha)
  27 {
  28         uint16_t data;
  29         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
  30
  31         if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && !IS_QLA2300(ha)) {
  32                 data = RD_REG_WORD(&reg->nvram);
  33                 while (data & NVR_BUSY) {
  34                         udelay(100);
  35                         data = RD_REG_WORD(&reg->nvram);
  36                 }
  37
  38                 /* Lock resource */
  39                 WRT_REG_WORD(&reg->u.isp2300.host_semaphore, 0x1);
  40                 RD_REG_WORD(&reg->u.isp2300.host_semaphore);
  41                 udelay(5);
  42                 data = RD_REG_WORD(&reg->u.isp2300.host_semaphore);
  43                 while ((data & BIT_0) == 0) {
  44                         /* Lock failed */
  45                         udelay(100);
  46                         WRT_REG_WORD(&reg->u.isp2300.host_semaphore, 0x1);
  47                         RD_REG_WORD(&reg->u.isp2300.host_semaphore);
  48                         udelay(5);
  49                         data = RD_REG_WORD(&reg->u.isp2300.host_semaphore);
  50                 }
  51         }
  52 }
  53
  54 /**
  55  * qla2x00_unlock_nvram_access() -
  56  * @ha: HA context
  57  */
  58 static void
  59 qla2x00_unlock_nvram_access(scsi_qla_host_t *ha)
  60 {
  61         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
  62
  63         if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && !IS_QLA2300(ha)) {
  64                 WRT_REG_WORD(&reg->u.isp2300.host_semaphore, 0);
  65                 RD_REG_WORD(&reg->u.isp2300.host_semaphore);
  66         }
  67 }
  68
  69 /**
  70  * qla2x00_get_nvram_word() - Calculates word position in NVRAM and calls the
  71  *      request routine to get the word from NVRAM.
  72  * @ha: HA context
  73  * @addr: Address in NVRAM to read
  74  *
  75  * Returns the word read from nvram @addr.
  76  */
  77 static uint16_t
  78 qla2x00_get_nvram_word(scsi_qla_host_t *ha, uint32_t addr)
  79 {
  80         uint16_t        data;
  81         uint32_t        nv_cmd;
  82
  83         nv_cmd = addr << 16;
  84         nv_cmd |= NV_READ_OP;
  85         data = qla2x00_nvram_request(ha, nv_cmd);
  86
  87         return (data);
  88 }
  89
  90 /**
  91  * qla2x00_write_nvram_word() - Write NVRAM data.
  92  * @ha: HA context
  93  * @addr: Address in NVRAM to write
  94  * @data: word to program
  95  */
  96 static void
  97 qla2x00_write_nvram_word(scsi_qla_host_t *ha, uint32_t addr, uint16_t data)
  98 {
  99         int count;
 100         uint16_t word;
 101         uint32_t nv_cmd, wait_cnt;
 102         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 103
 104         qla2x00_nv_write(ha, NVR_DATA_OUT);
 105         qla2x00_nv_write(ha, 0);
 106         qla2x00_nv_write(ha, 0);
 107
 108         for (word = 0; word < 8; word++)
 109                 qla2x00_nv_write(ha, NVR_DATA_OUT);
 110
 111         qla2x00_nv_deselect(ha);
 112
 113         /* Write data */
 114         nv_cmd = (addr << 16) | NV_WRITE_OP;
 115         nv_cmd |= data;
 116         nv_cmd <<= 5;
 117         for (count = 0; count < 27; count++) {
 118                 if (nv_cmd & BIT_31)
 119                         qla2x00_nv_write(ha, NVR_DATA_OUT);
 120                 else
 121                         qla2x00_nv_write(ha, 0);
 122
 123                 nv_cmd <<= 1;
 124         }
 125
 126         qla2x00_nv_deselect(ha);
 127
 128         /* Wait for NVRAM to become ready */
 129         WRT_REG_WORD(&reg->nvram, NVR_SELECT);
 130         RD_REG_WORD(&reg->nvram);               /* PCI Posting. */
 131         wait_cnt = NVR_WAIT_CNT;
 132         do {
 133                 if (!--wait_cnt) {
 134                         DEBUG9_10(printk("%s(%ld): NVRAM didn't go ready...\n",
 135                             __func__, ha->host_no));
 136                         break;
 137                 }
 138                 NVRAM_DELAY();
 139                 word = RD_REG_WORD(&reg->nvram);
 140         } while ((word & NVR_DATA_IN) == 0);
 141
 142         qla2x00_nv_deselect(ha);
 143
 144         /* Disable writes */
 145         qla2x00_nv_write(ha, NVR_DATA_OUT);
 146         for (count = 0; count < 10; count++)
 147                 qla2x00_nv_write(ha, 0);
 148
 149         qla2x00_nv_deselect(ha);
 150 }
 151
 152 static int
 153 qla2x00_write_nvram_word_tmo(scsi_qla_host_t *ha, uint32_t addr, uint16_t data,
 154     uint32_t tmo)
 155 {
 156         int ret, count;
 157         uint16_t word;
 158         uint32_t nv_cmd;
 159         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 160
 161         ret = QLA_SUCCESS;
 162
 163         qla2x00_nv_write(ha, NVR_DATA_OUT);
 164         qla2x00_nv_write(ha, 0);
 165         qla2x00_nv_write(ha, 0);
 166
 167         for (word = 0; word < 8; word++)
 168                 qla2x00_nv_write(ha, NVR_DATA_OUT);
 169
 170         qla2x00_nv_deselect(ha);
 171
 172         /* Write data */
 173         nv_cmd = (addr << 16) | NV_WRITE_OP;
 174         nv_cmd |= data;
 175         nv_cmd <<= 5;
 176         for (count = 0; count < 27; count++) {
 177                 if (nv_cmd & BIT_31)
 178                         qla2x00_nv_write(ha, NVR_DATA_OUT);
 179                 else
 180                         qla2x00_nv_write(ha, 0);
 181
 182                 nv_cmd <<= 1;
 183         }
 184
 185         qla2x00_nv_deselect(ha);
 186
 187         /* Wait for NVRAM to become ready */
 188         WRT_REG_WORD(&reg->nvram, NVR_SELECT);
 189         RD_REG_WORD(&reg->nvram);               /* PCI Posting. */
 190         do {
 191                 NVRAM_DELAY();
 192                 word = RD_REG_WORD(&reg->nvram);
 193                 if (!--tmo) {
 194                         ret = QLA_FUNCTION_FAILED;
 195                         break;
 196                 }
 197         } while ((word & NVR_DATA_IN) == 0);
 198
 199         qla2x00_nv_deselect(ha);
 200
 201         /* Disable writes */
 202         qla2x00_nv_write(ha, NVR_DATA_OUT);
 203         for (count = 0; count < 10; count++)
 204                 qla2x00_nv_write(ha, 0);
 205
 206         qla2x00_nv_deselect(ha);
 207
 208         return ret;
 209 }
 210
 211 /**
 212  * qla2x00_nvram_request() - Sends read command to NVRAM and gets data from
 213  *      NVRAM.
 214  * @ha: HA context
 215  * @nv_cmd: NVRAM command
 216  *
 217  * Bit definitions for NVRAM command:
 218  *
 219  *      Bit 26     = start bit
 220  *      Bit 25, 24 = opcode
 221  *      Bit 23-16  = address
 222  *      Bit 15-0   = write data
 223  *
 224  * Returns the word read from nvram @addr.
 225  */
 226 static uint16_t
 227 qla2x00_nvram_request(scsi_qla_host_t *ha, uint32_t nv_cmd)
 228 {
 229         uint8_t         cnt;
 230         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 231         uint16_t        data = 0;
 232         uint16_t        reg_data;
 233
 234         /* Send command to NVRAM. */
 235         nv_cmd <<= 5;
 236         for (cnt = 0; cnt < 11; cnt++) {
 237                 if (nv_cmd & BIT_31)
 238                         qla2x00_nv_write(ha, NVR_DATA_OUT);
 239                 else
 240                         qla2x00_nv_write(ha, 0);
 241                 nv_cmd <<= 1;
 242         }
 243
 244         /* Read data from NVRAM. */
 245         for (cnt = 0; cnt < 16; cnt++) {
 246                 WRT_REG_WORD(&reg->nvram, NVR_SELECT | NVR_CLOCK);
 247                 RD_REG_WORD(&reg->nvram);       /* PCI Posting. */
 248                 NVRAM_DELAY();
 249                 data <<= 1;
 250                 reg_data = RD_REG_WORD(&reg->nvram);
 251                 if (reg_data & NVR_DATA_IN)
 252                         data |= BIT_0;
 253                 WRT_REG_WORD(&reg->nvram, NVR_SELECT);
 254                 RD_REG_WORD(&reg->nvram);       /* PCI Posting. */
 255                 NVRAM_DELAY();
 256         }
 257
 258         /* Deselect chip. */
 259         WRT_REG_WORD(&reg->nvram, NVR_DESELECT);
 260         RD_REG_WORD(&reg->nvram);               /* PCI Posting. */
 261         NVRAM_DELAY();
 262
 263         return (data);
 264 }
 265
 266 /**
 267  * qla2x00_nv_write() - Clean NVRAM operations.
 268  * @ha: HA context
 269  */
 270 static void
 271 qla2x00_nv_deselect(scsi_qla_host_t *ha)
 272 {
 273         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 274
 275         WRT_REG_WORD(&reg->nvram, NVR_DESELECT);
 276         RD_REG_WORD(&reg->nvram);               /* PCI Posting. */
 277         NVRAM_DELAY();
 278 }
 279
 280 /**
 281  * qla2x00_nv_write() - Prepare for NVRAM read/write operation.
 282  * @ha: HA context
 283  * @data: Serial interface selector
 284  */
 285 static void
 286 qla2x00_nv_write(scsi_qla_host_t *ha, uint16_t data)
 287 {
 288         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 289
 290         WRT_REG_WORD(&reg->nvram, data | NVR_SELECT | NVR_WRT_ENABLE);
 291         RD_REG_WORD(&reg->nvram);               /* PCI Posting. */
 292         NVRAM_DELAY();
 293         WRT_REG_WORD(&reg->nvram, data | NVR_SELECT| NVR_CLOCK |
 294             NVR_WRT_ENABLE);
 295         RD_REG_WORD(&reg->nvram);               /* PCI Posting. */
 296         NVRAM_DELAY();
 297         WRT_REG_WORD(&reg->nvram, data | NVR_SELECT | NVR_WRT_ENABLE);
 298         RD_REG_WORD(&reg->nvram);               /* PCI Posting. */
 299         NVRAM_DELAY();
 300 }
 301
 302 /**
 303  * qla2x00_clear_nvram_protection() -
 304  * @ha: HA context
 305  */
 306 static int
 307 qla2x00_clear_nvram_protection(scsi_qla_host_t *ha)
 308 {
 309         int ret, stat;
 310         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 311         uint32_t word, wait_cnt;
 312         uint16_t wprot, wprot_old;
 313
 314         /* Clear NVRAM write protection. */
 315         ret = QLA_FUNCTION_FAILED;
 316
 317         wprot_old = cpu_to_le16(qla2x00_get_nvram_word(ha, ha->nvram_base));
 318         stat = qla2x00_write_nvram_word_tmo(ha, ha->nvram_base,
 319             __constant_cpu_to_le16(0x1234), 100000);
 320         wprot = cpu_to_le16(qla2x00_get_nvram_word(ha, ha->nvram_base));
 321         if (stat != QLA_SUCCESS || wprot != 0x1234) {
 322                 /* Write enable. */
 323                 qla2x00_nv_write(ha, NVR_DATA_OUT);
 324                 qla2x00_nv_write(ha, 0);
 325                 qla2x00_nv_write(ha, 0);
 326                 for (word = 0; word < 8; word++)
 327                         qla2x00_nv_write(ha, NVR_DATA_OUT);
 328
 329                 qla2x00_nv_deselect(ha);
 330
 331                 /* Enable protection register. */
 332                 qla2x00_nv_write(ha, NVR_PR_ENABLE | NVR_DATA_OUT);
 333                 qla2x00_nv_write(ha, NVR_PR_ENABLE);
 334                 qla2x00_nv_write(ha, NVR_PR_ENABLE);
 335                 for (word = 0; word < 8; word++)
 336                         qla2x00_nv_write(ha, NVR_DATA_OUT | NVR_PR_ENABLE);
 337
 338                 qla2x00_nv_deselect(ha);
 339
 340                 /* Clear protection register (ffff is cleared). */
 341                 qla2x00_nv_write(ha, NVR_PR_ENABLE | NVR_DATA_OUT);
 342                 qla2x00_nv_write(ha, NVR_PR_ENABLE | NVR_DATA_OUT);
 343                 qla2x00_nv_write(ha, NVR_PR_ENABLE | NVR_DATA_OUT);
 344                 for (word = 0; word < 8; word++)
 345                         qla2x00_nv_write(ha, NVR_DATA_OUT | NVR_PR_ENABLE);
 346
 347                 qla2x00_nv_deselect(ha);
 348
 349                 /* Wait for NVRAM to become ready. */
 350                 WRT_REG_WORD(&reg->nvram, NVR_SELECT);
 351                 RD_REG_WORD(&reg->nvram);       /* PCI Posting. */
 352                 wait_cnt = NVR_WAIT_CNT;
 353                 do {
 354                         if (!--wait_cnt) {
 355                                 DEBUG9_10(printk("%s(%ld): NVRAM didn't go "
 356                                     "ready...\n", __func__,
 357                                     ha->host_no));
 358                                 break;
 359                         }
 360                         NVRAM_DELAY();
 361                         word = RD_REG_WORD(&reg->nvram);
 362                 } while ((word & NVR_DATA_IN) == 0);
 363
 364                 if (wait_cnt)
 365                         ret = QLA_SUCCESS;
 366         } else
 367                 qla2x00_write_nvram_word(ha, ha->nvram_base, wprot_old);
 368
 369         return ret;
 370 }
 371
 372 static void
 373 qla2x00_set_nvram_protection(scsi_qla_host_t *ha, int stat)
 374 {
 375         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 376         uint32_t word, wait_cnt;
 377
 378         if (stat != QLA_SUCCESS)
 379                 return;
 380
 381         /* Set NVRAM write protection. */
 382         /* Write enable. */
 383         qla2x00_nv_write(ha, NVR_DATA_OUT);
 384         qla2x00_nv_write(ha, 0);
 385         qla2x00_nv_write(ha, 0);
 386         for (word = 0; word < 8; word++)
 387                 qla2x00_nv_write(ha, NVR_DATA_OUT);
 388
 389         qla2x00_nv_deselect(ha);
 390
 391         /* Enable protection register. */
 392         qla2x00_nv_write(ha, NVR_PR_ENABLE | NVR_DATA_OUT);
 393         qla2x00_nv_write(ha, NVR_PR_ENABLE);
 394         qla2x00_nv_write(ha, NVR_PR_ENABLE);
 395         for (word = 0; word < 8; word++)
 396                 qla2x00_nv_write(ha, NVR_DATA_OUT | NVR_PR_ENABLE);
 397
 398         qla2x00_nv_deselect(ha);
 399
 400         /* Enable protection register. */
 401         qla2x00_nv_write(ha, NVR_PR_ENABLE | NVR_DATA_OUT);
 402         qla2x00_nv_write(ha, NVR_PR_ENABLE);
 403         qla2x00_nv_write(ha, NVR_PR_ENABLE | NVR_DATA_OUT);
 404         for (word = 0; word < 8; word++)
 405                 qla2x00_nv_write(ha, NVR_PR_ENABLE);
 406
 407         qla2x00_nv_deselect(ha);
 408
 409         /* Wait for NVRAM to become ready. */
 410         WRT_REG_WORD(&reg->nvram, NVR_SELECT);
 411         RD_REG_WORD(&reg->nvram);               /* PCI Posting. */
 412         wait_cnt = NVR_WAIT_CNT;
 413         do {
 414                 if (!--wait_cnt) {
 415                         DEBUG9_10(printk("%s(%ld): NVRAM didn't go ready...\n",
 416                             __func__, ha->host_no));
 417                         break;
 418                 }
 419                 NVRAM_DELAY();
 420                 word = RD_REG_WORD(&reg->nvram);
 421         } while ((word & NVR_DATA_IN) == 0);
 422 }
 423
 424
 425 /*****************************************************************************/
 426 /* Flash Manipulation Routines                                               */
 427 /*****************************************************************************/
 428
 429 #define OPTROM_BURST_SIZE       0x1000
 430 #define OPTROM_BURST_DWORDS     (OPTROM_BURST_SIZE / 4)
 431
 432 static inline uint32_t
 433 flash_conf_to_access_addr(uint32_t faddr)
 434 {
 435         return FARX_ACCESS_FLASH_CONF | faddr;
 436 }
 437
 438 static inline uint32_t
 439 flash_data_to_access_addr(uint32_t faddr)
 440 {
 441         return FARX_ACCESS_FLASH_DATA | faddr;
 442 }
 443
 444 static inline uint32_t
 445 nvram_conf_to_access_addr(uint32_t naddr)
 446 {
 447         return FARX_ACCESS_NVRAM_CONF | naddr;
 448 }
 449
 450 static inline uint32_t
 451 nvram_data_to_access_addr(uint32_t naddr)
 452 {
 453         return FARX_ACCESS_NVRAM_DATA | naddr;
 454 }
 455
 456 static uint32_t
 457 qla24xx_read_flash_dword(scsi_qla_host_t *ha, uint32_t addr)
 458 {
 459         int rval;
 460         uint32_t cnt, data;
 461         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
 462
 463         WRT_REG_DWORD(&reg->flash_addr, addr & ~FARX_DATA_FLAG);
 464         /* Wait for READ cycle to complete. */
 465         rval = QLA_SUCCESS;
 466         for (cnt = 3000;
 467             (RD_REG_DWORD(&reg->flash_addr) & FARX_DATA_FLAG) == 0 &&
 468             rval == QLA_SUCCESS; cnt--) {
 469                 if (cnt)
 470                         udelay(10);
 471                 else
 472                         rval = QLA_FUNCTION_TIMEOUT;
 473                 cond_resched();
 474         }
 475
 476         /* TODO: What happens if we time out? */
 477         data = 0xDEADDEAD;
 478         if (rval == QLA_SUCCESS)
 479                 data = RD_REG_DWORD(&reg->flash_data);
 480
 481         return data;
 482 }
 483
 484 uint32_t *
 485 qla24xx_read_flash_data(scsi_qla_host_t *ha, uint32_t *dwptr, uint32_t faddr,
 486     uint32_t dwords)
 487 {
 488         uint32_t i;
 489
 490         /* Dword reads to flash. */
 491         for (i = 0; i < dwords; i++, faddr++)
 492                 dwptr[i] = cpu_to_le32(qla24xx_read_flash_dword(ha,
 493                     flash_data_to_access_addr(faddr)));
 494
 495         return dwptr;
 496 }
 497
 498 static int
 499 qla24xx_write_flash_dword(scsi_qla_host_t *ha, uint32_t addr, uint32_t data)
 500 {
 501         int rval;
 502         uint32_t cnt;
 503         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
 504
 505         WRT_REG_DWORD(&reg->flash_data, data);
 506         RD_REG_DWORD(&reg->flash_data);         /* PCI Posting. */
 507         WRT_REG_DWORD(&reg->flash_addr, addr | FARX_DATA_FLAG);
 508         /* Wait for Write cycle to complete. */
 509         rval = QLA_SUCCESS;
 510         for (cnt = 500000; (RD_REG_DWORD(&reg->flash_addr) & FARX_DATA_FLAG) &&
 511             rval == QLA_SUCCESS; cnt--) {
 512                 if (cnt)
 513                         udelay(10);
 514                 else
 515                         rval = QLA_FUNCTION_TIMEOUT;
 516                 cond_resched();
 517         }
 518         return rval;
 519 }
 520
 521 static void
 522 qla24xx_get_flash_manufacturer(scsi_qla_host_t *ha, uint8_t *man_id,
 523     uint8_t *flash_id)
 524 {
 525         uint32_t ids;
 526
 527         ids = qla24xx_read_flash_dword(ha, flash_data_to_access_addr(0xd03ab));
 528         *man_id = LSB(ids);
 529         *flash_id = MSB(ids);
 530
 531         /* Check if man_id and flash_id are valid. */
 532         if (ids != 0xDEADDEAD && (*man_id == 0 || *flash_id == 0)) {
 533                 /* Read information using 0x9f opcode
 534                  * Device ID, Mfg ID would be read in the format:
 535                  *   <Ext Dev Info><Device ID Part2><Device ID Part 1><Mfg ID>
 536                  * Example: ATMEL 0x00 01 45 1F
 537                  * Extract MFG and Dev ID from last two bytes.
 538                  */
 539                 ids = qla24xx_read_flash_dword(ha,
 540                     flash_data_to_access_addr(0xd009f));
 541                 *man_id = LSB(ids);
 542                 *flash_id = MSB(ids);
 543         }
 544 }
 545
 546 static int
 547 qla2xxx_find_flt_start(scsi_qla_host_t *ha, uint32_t *start)
 548 {
 549         const char *loc, *locations[] = { "DEF", "PCI" };
 550         uint32_t pcihdr, pcids;
 551         uint32_t *dcode;
 552         uint8_t *buf, *bcode, last_image;
 553         uint16_t cnt, chksum, *wptr;
 554         struct qla_flt_location *fltl;
 555
 556         /*
 557          * FLT-location structure resides after the last PCI region.
 558          */
 559
 560         /* Begin with sane defaults. */
 561         loc = locations[0];
 562         *start = IS_QLA24XX_TYPE(ha) ? FA_FLASH_LAYOUT_ADDR_24:
 563             FA_FLASH_LAYOUT_ADDR;
 564
 565         /* Begin with first PCI expansion ROM header. */
 566         buf = (uint8_t *)ha->request_ring;
 567         dcode = (uint32_t *)ha->request_ring;
 568         pcihdr = 0;
 569         last_image = 1;
 570         do {
 571                 /* Verify PCI expansion ROM header. */
 572                 qla24xx_read_flash_data(ha, dcode, pcihdr >> 2, 0x20);
 573                 bcode = buf + (pcihdr % 4);
 574                 if (bcode[0x0] != 0x55 || bcode[0x1] != 0xaa)
 575                         goto end;
 576
 577                 /* Locate PCI data structure. */
 578                 pcids = pcihdr + ((bcode[0x19] << 8) | bcode[0x18]);
 579                 qla24xx_read_flash_data(ha, dcode, pcids >> 2, 0x20);
 580                 bcode = buf + (pcihdr % 4);
 581
 582                 /* Validate signature of PCI data structure. */
 583                 if (bcode[0x0] != 'P' || bcode[0x1] != 'C' ||
 584                     bcode[0x2] != 'I' || bcode[0x3] != 'R')
 585                         goto end;
 586
 587                 last_image = bcode[0x15] & BIT_7;
 588
 589                 /* Locate next PCI expansion ROM. */
 590                 pcihdr += ((bcode[0x11] << 8) | bcode[0x10]) * 512;
 591         } while (!last_image);
 592
 593         /* Now verify FLT-location structure. */
 594         fltl = (struct qla_flt_location *)ha->request_ring;
 595         qla24xx_read_flash_data(ha, dcode, pcihdr >> 2,
 596             sizeof(struct qla_flt_location) >> 2);
 597         if (fltl->sig[0] != 'Q' || fltl->sig[1] != 'F' ||
 598             fltl->sig[2] != 'L' || fltl->sig[3] != 'T')
 599                 goto end;
 600
 601         wptr = (uint16_t *)ha->request_ring;
 602         cnt = sizeof(struct qla_flt_location) >> 1;
 603         for (chksum = 0; cnt; cnt--)
 604                 chksum += le16_to_cpu(*wptr++);
 605         if (chksum) {
 606                 qla_printk(KERN_ERR, ha,
 607                     "Inconsistent FLTL detected: checksum=0x%x.\n", chksum);
 608                 qla2x00_dump_buffer(buf, sizeof(struct qla_flt_location));
 609                 return QLA_FUNCTION_FAILED;
 610         }
 611
 612         /* Good data.  Use specified location. */
 613         loc = locations[1];
 614         *start = le16_to_cpu(fltl->start_hi) << 16 |
 615             le16_to_cpu(fltl->start_lo);
 616 end:
 617         DEBUG2(qla_printk(KERN_DEBUG, ha, "FLTL[%s] = 0x%x.\n", loc, *start));
 618         return QLA_SUCCESS;
 619 }
 620
 621 static void
 622 qla2xxx_get_flt_info(scsi_qla_host_t *ha, uint32_t flt_addr)
 623 {
 624         const char *loc, *locations[] = { "DEF", "FLT" };
 625         uint16_t *wptr;
 626         uint16_t cnt, chksum;
 627         uint32_t start;
 628         struct qla_flt_header *flt;
 629         struct qla_flt_region *region;
 630
 631         ha->flt_region_flt = flt_addr;
 632         wptr = (uint16_t *)ha->request_ring;
 633         flt = (struct qla_flt_header *)ha->request_ring;
 634         region = (struct qla_flt_region *)&flt[1];
 635         ha->isp_ops->read_optrom(ha, (uint8_t *)ha->request_ring,
 636             flt_addr << 2, OPTROM_BURST_SIZE);
 637         if (*wptr == __constant_cpu_to_le16(0xffff))
 638                 goto no_flash_data;
 639         if (flt->version != __constant_cpu_to_le16(1)) {
 640                 DEBUG2(qla_printk(KERN_INFO, ha, "Unsupported FLT detected: "
 641                     "version=0x%x length=0x%x checksum=0x%x.\n",
 642                     le16_to_cpu(flt->version), le16_to_cpu(flt->length),
 643                     le16_to_cpu(flt->checksum)));
 644                 goto no_flash_data;
 645         }
 646
 647         cnt = (sizeof(struct qla_flt_header) + le16_to_cpu(flt->length)) >> 1;
 648         for (chksum = 0; cnt; cnt--)
 649                 chksum += le16_to_cpu(*wptr++);
 650         if (chksum) {
 651                 DEBUG2(qla_printk(KERN_INFO, ha, "Inconsistent FLT detected: "
 652                     "version=0x%x length=0x%x checksum=0x%x.\n",
 653                     le16_to_cpu(flt->version), le16_to_cpu(flt->length),
 654                     chksum));
 655                 goto no_flash_data;
 656         }
 657
 658         loc = locations[1];
 659         cnt = le16_to_cpu(flt->length) / sizeof(struct qla_flt_region);
 660         for ( ; cnt; cnt--, region++) {
 661                 /* Store addresses as DWORD offsets. */
 662                 start = le32_to_cpu(region->start) >> 2;
 663
 664                 DEBUG3(qla_printk(KERN_DEBUG, ha, "FLT[%02x]: start=0x%x "
 665                     "end=0x%x size=0x%x.\n", le32_to_cpu(region->code), start,
 666                     le32_to_cpu(region->end) >> 2, le32_to_cpu(region->size)));
 667
 668                 switch (le32_to_cpu(region->code)) {
 669                 case FLT_REG_FW:
 670                         ha->flt_region_fw = start;
 671                         break;
 672                 case FLT_REG_BOOT_CODE:
 673                         ha->flt_region_boot = start;
 674                         break;
 675                 case FLT_REG_VPD_0:
 676                         ha->flt_region_vpd_nvram = start;
 677                         break;
 678                 case FLT_REG_FDT:
 679                         ha->flt_region_fdt = start;
 680                         break;
 681                 case FLT_REG_HW_EVENT_0:
 682                         if (!PCI_FUNC(ha->pdev->devfn))
 683                                 ha->flt_region_hw_event = start;
 684                         break;
 685                 case FLT_REG_HW_EVENT_1:
 686                         if (PCI_FUNC(ha->pdev->devfn))
 687                                 ha->flt_region_hw_event = start;
 688                         break;
 689                 case FLT_REG_NPIV_CONF_0:
 690                         if (!PCI_FUNC(ha->pdev->devfn))
 691                                 ha->flt_region_npiv_conf = start;
 692                         break;
 693                 case FLT_REG_NPIV_CONF_1:
 694                         if (PCI_FUNC(ha->pdev->devfn))
 695                                 ha->flt_region_npiv_conf = start;
 696                         break;
 697                 }
 698         }
 699         goto done;
 700
 701 no_flash_data:
 702         /* Use hardcoded defaults. */
 703         loc = locations[0];
 704         ha->flt_region_fw = FA_RISC_CODE_ADDR;
 705         ha->flt_region_boot = FA_BOOT_CODE_ADDR;
 706         ha->flt_region_vpd_nvram = FA_VPD_NVRAM_ADDR;
 707         ha->flt_region_fdt = IS_QLA24XX_TYPE(ha) ? FA_FLASH_DESCR_ADDR_24:
 708             FA_FLASH_DESCR_ADDR;
 709         ha->flt_region_hw_event = !PCI_FUNC(ha->pdev->devfn) ?
 710             FA_HW_EVENT0_ADDR: FA_HW_EVENT1_ADDR;
 711         ha->flt_region_npiv_conf = !PCI_FUNC(ha->pdev->devfn) ?
 712             (IS_QLA24XX_TYPE(ha) ? FA_NPIV_CONF0_ADDR_24: FA_NPIV_CONF0_ADDR):
 713             (IS_QLA24XX_TYPE(ha) ? FA_NPIV_CONF1_ADDR_24: FA_NPIV_CONF1_ADDR);
 714 done:
 715         DEBUG2(qla_printk(KERN_DEBUG, ha, "FLT[%s]: boot=0x%x fw=0x%x "
 716             "vpd_nvram=0x%x fdt=0x%x flt=0x%x hwe=0x%x npiv=0x%x.\n", loc,
 717             ha->flt_region_boot, ha->flt_region_fw, ha->flt_region_vpd_nvram,
 718             ha->flt_region_fdt, ha->flt_region_flt, ha->flt_region_hw_event,
 719             ha->flt_region_npiv_conf));
 720 }
 721
 722 static void
 723 qla2xxx_get_fdt_info(scsi_qla_host_t *ha)
 724 {
 725 #define FLASH_BLK_SIZE_4K       0x1000
 726 #define FLASH_BLK_SIZE_32K      0x8000
 727 #define FLASH_BLK_SIZE_64K      0x10000
 728         const char *loc, *locations[] = { "MID", "FDT" };
 729         uint16_t cnt, chksum;
 730         uint16_t *wptr;
 731         struct qla_fdt_layout *fdt;
 732         uint8_t man_id, flash_id;
 733         uint16_t mid, fid;
 734
 735         wptr = (uint16_t *)ha->request_ring;
 736         fdt = (struct qla_fdt_layout *)ha->request_ring;
 737         ha->isp_ops->read_optrom(ha, (uint8_t *)ha->request_ring,
 738             ha->flt_region_fdt << 2, OPTROM_BURST_SIZE);
 739         if (*wptr == __constant_cpu_to_le16(0xffff))
 740                 goto no_flash_data;
 741         if (fdt->sig[0] != 'Q' || fdt->sig[1] != 'L' || fdt->sig[2] != 'I' ||
 742             fdt->sig[3] != 'D')
 743                 goto no_flash_data;
 744
 745         for (cnt = 0, chksum = 0; cnt < sizeof(struct qla_fdt_layout) >> 1;
 746             cnt++)
 747                 chksum += le16_to_cpu(*wptr++);
 748         if (chksum) {
 749                 DEBUG2(qla_printk(KERN_INFO, ha, "Inconsistent FDT detected: "
 750                     "checksum=0x%x id=%c version=0x%x.\n", chksum, fdt->sig[0],
 751                     le16_to_cpu(fdt->version)));
 752                 DEBUG9(qla2x00_dump_buffer((uint8_t *)fdt, sizeof(*fdt)));
 753                 goto no_flash_data;
 754         }
 755
 756         loc = locations[1];
 757         mid = le16_to_cpu(fdt->man_id);
 758         fid = le16_to_cpu(fdt->id);
 759         ha->fdt_wrt_disable = fdt->wrt_disable_bits;
 760         ha->fdt_erase_cmd = flash_conf_to_access_addr(0x0300 | fdt->erase_cmd);
 761         ha->fdt_block_size = le32_to_cpu(fdt->block_size);
 762         if (fdt->unprotect_sec_cmd) {
 763                 ha->fdt_unprotect_sec_cmd = flash_conf_to_access_addr(0x0300 |
 764                     fdt->unprotect_sec_cmd);
 765                 ha->fdt_protect_sec_cmd = fdt->protect_sec_cmd ?
 766                     flash_conf_to_access_addr(0x0300 | fdt->protect_sec_cmd):
 767                     flash_conf_to_access_addr(0x0336);
 768         }
 769         goto done;
 770 no_flash_data:
 771         loc = locations[0];
 772         qla24xx_get_flash_manufacturer(ha, &man_id, &flash_id);
 773         mid = man_id;
 774         fid = flash_id;
 775         ha->fdt_wrt_disable = 0x9c;
 776         ha->fdt_erase_cmd = flash_conf_to_access_addr(0x03d8);
 777         switch (man_id) {
 778         case 0xbf: /* STT flash. */
 779                 if (flash_id == 0x8e)
 780                         ha->fdt_block_size = FLASH_BLK_SIZE_64K;
 781                 else
 782                         ha->fdt_block_size = FLASH_BLK_SIZE_32K;
 783
 784                 if (flash_id == 0x80)
 785                         ha->fdt_erase_cmd = flash_conf_to_access_addr(0x0352);
 786                 break;
 787         case 0x13: /* ST M25P80. */
 788                 ha->fdt_block_size = FLASH_BLK_SIZE_64K;
 789                 break;
 790         case 0x1f: /* Atmel 26DF081A. */
 791                 ha->fdt_block_size = FLASH_BLK_SIZE_4K;
 792                 ha->fdt_erase_cmd = flash_conf_to_access_addr(0x0320);
 793                 ha->fdt_unprotect_sec_cmd = flash_conf_to_access_addr(0x0339);
 794                 ha->fdt_protect_sec_cmd = flash_conf_to_access_addr(0x0336);
 795                 break;
 796         default:
 797                 /* Default to 64 kb sector size. */
 798                 ha->fdt_block_size = FLASH_BLK_SIZE_64K;
 799                 break;
 800         }
 801 done:
 802         DEBUG2(qla_printk(KERN_DEBUG, ha, "FDT[%s]: (0x%x/0x%x) erase=0x%x "
 803             "pro=%x upro=%x wrtd=0x%x blk=0x%x.\n", loc, mid, fid,
 804             ha->fdt_erase_cmd, ha->fdt_protect_sec_cmd,
 805             ha->fdt_unprotect_sec_cmd, ha->fdt_wrt_disable,
 806             ha->fdt_block_size));
 807 }
 808
 809 int
 810 qla2xxx_get_flash_info(scsi_qla_host_t *ha)
 811 {
 812         int ret;
 813         uint32_t flt_addr;
 814
 815         if (!IS_QLA24XX_TYPE(ha) && !IS_QLA25XX(ha))
 816                 return QLA_SUCCESS;
 817
 818         ret = qla2xxx_find_flt_start(ha, &flt_addr);
 819         if (ret != QLA_SUCCESS)
 820                 return ret;
 821
 822         qla2xxx_get_flt_info(ha, flt_addr);
 823         qla2xxx_get_fdt_info(ha);
 824
 825         return QLA_SUCCESS;
 826 }
 827
 828 void
 829 qla2xxx_flash_npiv_conf(scsi_qla_host_t *ha)
 830 {
 831 #define NPIV_CONFIG_SIZE        (16*1024)
 832         void *data;
 833         uint16_t *wptr;
 834         uint16_t cnt, chksum;
 835         struct qla_npiv_header hdr;
 836         struct qla_npiv_entry *entry;
 837
 838         if (!IS_QLA24XX_TYPE(ha) && !IS_QLA25XX(ha))
 839                 return;
 840
 841         ha->isp_ops->read_optrom(ha, (uint8_t *)&hdr,
 842             ha->flt_region_npiv_conf << 2, sizeof(struct qla_npiv_header));
 843         if (hdr.version == __constant_cpu_to_le16(0xffff))
 844                 return;
 845         if (hdr.version != __constant_cpu_to_le16(1)) {
 846                 DEBUG2(qla_printk(KERN_INFO, ha, "Unsupported NPIV-Config "
 847                     "detected: version=0x%x entries=0x%x checksum=0x%x.\n",
 848                     le16_to_cpu(hdr.version), le16_to_cpu(hdr.entries),
 849                     le16_to_cpu(hdr.checksum)));
 850                 return;
 851         }
 852
 853         data = kmalloc(NPIV_CONFIG_SIZE, GFP_KERNEL);
 854         if (!data) {
 855                 DEBUG2(qla_printk(KERN_INFO, ha, "NPIV-Config: Unable to "
 856                     "allocate memory.\n"));
 857                 return;
 858         }
 859
 860         ha->isp_ops->read_optrom(ha, (uint8_t *)data,
 861             ha->flt_region_npiv_conf << 2, NPIV_CONFIG_SIZE);
 862
 863         cnt = (sizeof(struct qla_npiv_header) + le16_to_cpu(hdr.entries) *
 864             sizeof(struct qla_npiv_entry)) >> 1;
 865         for (wptr = data, chksum = 0; cnt; cnt--)
 866                 chksum += le16_to_cpu(*wptr++);
 867         if (chksum) {
 868                 DEBUG2(qla_printk(KERN_INFO, ha, "Inconsistent NPIV-Config "
 869                     "detected: version=0x%x entries=0x%x checksum=0x%x.\n",
 870                     le16_to_cpu(hdr.version), le16_to_cpu(hdr.entries),
 871                     chksum));
 872                 goto done;
 873         }
 874
 875         entry = data + sizeof(struct qla_npiv_header);
 876         cnt = le16_to_cpu(hdr.entries);
 877         for ( ; cnt; cnt--, entry++) {
 878                 uint16_t flags;
 879                 struct fc_vport_identifiers vid;
 880                 struct fc_vport *vport;
 881
 882                 flags = le16_to_cpu(entry->flags);
 883                 if (flags == 0xffff)
 884                         continue;
 885                 if ((flags & BIT_0) == 0)
 886                         continue;
 887
 888                 memset(&vid, 0, sizeof(vid));
 889                 vid.roles = FC_PORT_ROLE_FCP_INITIATOR;
 890                 vid.vport_type = FC_PORTTYPE_NPIV;
 891                 vid.disable = false;
 892                 vid.port_name = wwn_to_u64(entry->port_name);
 893                 vid.node_name = wwn_to_u64(entry->node_name);
 894
 895                 DEBUG2(qla_printk(KERN_DEBUG, ha, "NPIV[%02x]: wwpn=%llx "
 896                     "wwnn=%llx vf_id=0x%x qos=0x%x.\n", cnt,
 897                     (unsigned long long)vid.port_name,
 898                     (unsigned long long)vid.node_name,
 899                     le16_to_cpu(entry->vf_id), le16_to_cpu(entry->qos)));
 900
 901                 vport = fc_vport_create(ha->host, 0, &vid);
 902                 if (!vport)
 903                         qla_printk(KERN_INFO, ha, "NPIV-Config: Failed to "
 904                             "create vport [%02x]: wwpn=%llx wwnn=%llx.\n", cnt,
 905                             (unsigned long long)vid.port_name,
 906                             (unsigned long long)vid.node_name);
 907         }
 908 done:
 909         kfree(data);
 910 }
 911
 912 static void
 913 qla24xx_unprotect_flash(scsi_qla_host_t *ha)
 914 {
 915         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
 916
 917         /* Enable flash write. */
 918         WRT_REG_DWORD(&reg->ctrl_status,
 919             RD_REG_DWORD(&reg->ctrl_status) | CSRX_FLASH_ENABLE);
 920         RD_REG_DWORD(&reg->ctrl_status);        /* PCI Posting. */
 921
 922         if (!ha->fdt_wrt_disable)
 923                 return;
 924
 925         /* Disable flash write-protection. */
 926         qla24xx_write_flash_dword(ha, flash_conf_to_access_addr(0x101), 0);
 927         /* Some flash parts need an additional zero-write to clear bits.*/
 928         qla24xx_write_flash_dword(ha, flash_conf_to_access_addr(0x101), 0);
 929 }
 930
 931 static void
 932 qla24xx_protect_flash(scsi_qla_host_t *ha)
 933 {
 934         uint32_t cnt;
 935         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
 936
 937         if (!ha->fdt_wrt_disable)
 938                 goto skip_wrt_protect;
 939
 940         /* Enable flash write-protection and wait for completion. */
 941         qla24xx_write_flash_dword(ha, flash_conf_to_access_addr(0x101),
 942             ha->fdt_wrt_disable);
 943         for (cnt = 300; cnt &&
 944             qla24xx_read_flash_dword(ha,
 945                     flash_conf_to_access_addr(0x005)) & BIT_0;
 946             cnt--) {
 947                 udelay(10);
 948         }
 949
 950 skip_wrt_protect:
 951         /* Disable flash write. */
 952         WRT_REG_DWORD(&reg->ctrl_status,
 953             RD_REG_DWORD(&reg->ctrl_status) & ~CSRX_FLASH_ENABLE);
 954         RD_REG_DWORD(&reg->ctrl_status);        /* PCI Posting. */
 955 }
 956
 957 static int
 958 qla24xx_write_flash_data(scsi_qla_host_t *ha, uint32_t *dwptr, uint32_t faddr,
 959     uint32_t dwords)
 960 {
 961         int ret;
 962         uint32_t liter, miter;
 963         uint32_t sec_mask, rest_addr;
 964         uint32_t fdata, findex;
 965         dma_addr_t optrom_dma;
 966         void *optrom = NULL;
 967         uint32_t *s, *d;
 968
 969         ret = QLA_SUCCESS;
 970
 971         /* Prepare burst-capable write on supported ISPs. */
 972         if (IS_QLA25XX(ha) && !(faddr & 0xfff) &&
 973             dwords > OPTROM_BURST_DWORDS) {
 974                 optrom = dma_alloc_coherent(&ha->pdev->dev, OPTROM_BURST_SIZE,
 975                     &optrom_dma, GFP_KERNEL);
 976                 if (!optrom) {
 977                         qla_printk(KERN_DEBUG, ha,
 978                             "Unable to allocate memory for optrom burst write "
 979                             "(%x KB).\n", OPTROM_BURST_SIZE / 1024);
 980                 }
 981         }
 982
 983         rest_addr = (ha->fdt_block_size >> 2) - 1;
 984         sec_mask = 0x80000 - (ha->fdt_block_size >> 2);
 985
 986         qla24xx_unprotect_flash(ha);
 987
 988         for (liter = 0; liter < dwords; liter++, faddr++, dwptr++) {
 989
 990                 findex = faddr;
 991                 fdata = (findex & sec_mask) << 2;
 992
 993                 /* Are we at the beginning of a sector? */
 994                 if ((findex & rest_addr) == 0) {
 995                         /* Do sector unprotect. */
 996                         if (ha->fdt_unprotect_sec_cmd)
 997                                 qla24xx_write_flash_dword(ha,
 998                                     ha->fdt_unprotect_sec_cmd,
 999                                     (fdata & 0xff00) | ((fdata << 16) &
1000                                     0xff0000) | ((fdata >> 16) & 0xff));
1001                         ret = qla24xx_write_flash_dword(ha, ha->fdt_erase_cmd,
1002                             (fdata & 0xff00) |((fdata << 16) &
1003                             0xff0000) | ((fdata >> 16) & 0xff));
1004                         if (ret != QLA_SUCCESS) {
1005                                 DEBUG9(printk("%s(%ld) Unable to flash "
1006                                     "sector: address=%x.\n", __func__,
1007                                     ha->host_no, faddr));
1008                                 break;
1009                         }
1010                 }
1011
1012                 /* Go with burst-write. */
1013                 if (optrom && (liter + OPTROM_BURST_DWORDS) <= dwords) {
1014                         /* Copy data to DMA'ble buffer. */
1015                         for (miter = 0, s = optrom, d = dwptr;
1016                             miter < OPTROM_BURST_DWORDS; miter++, s++, d++)
1017                                 *s = cpu_to_le32(*d);
1018
1019                         ret = qla2x00_load_ram(ha, optrom_dma,
1020                             flash_data_to_access_addr(faddr),
1021                             OPTROM_BURST_DWORDS);
1022                         if (ret != QLA_SUCCESS) {
1023                                 qla_printk(KERN_WARNING, ha,
1024                                     "Unable to burst-write optrom segment "
1025                                     "(%x/%x/%llx).\n", ret,
1026                                     flash_data_to_access_addr(faddr),
1027                                     (unsigned long long)optrom_dma);
1028                                 qla_printk(KERN_WARNING, ha,
1029                                     "Reverting to slow-write.\n");
1030
1031                                 dma_free_coherent(&ha->pdev->dev,
1032                                     OPTROM_BURST_SIZE, optrom, optrom_dma);
1033                                 optrom = NULL;
1034                         } else {
1035                                 liter += OPTROM_BURST_DWORDS - 1;
1036                                 faddr += OPTROM_BURST_DWORDS - 1;
1037                                 dwptr += OPTROM_BURST_DWORDS - 1;
1038                                 continue;
1039                         }
1040                 }
1041
1042                 ret = qla24xx_write_flash_dword(ha,
1043                     flash_data_to_access_addr(faddr), cpu_to_le32(*dwptr));
1044                 if (ret != QLA_SUCCESS) {
1045                         DEBUG9(printk("%s(%ld) Unable to program flash "
1046                             "address=%x data=%x.\n", __func__,
1047                             ha->host_no, faddr, *dwptr));
1048                         break;
1049                 }
1050
1051                 /* Do sector protect. */
1052                 if (ha->fdt_unprotect_sec_cmd &&
1053                     ((faddr & rest_addr) == rest_addr))
1054                         qla24xx_write_flash_dword(ha,
1055                             ha->fdt_protect_sec_cmd,
1056                             (fdata & 0xff00) | ((fdata << 16) &
1057                             0xff0000) | ((fdata >> 16) & 0xff));
1058         }
1059
1060         qla24xx_protect_flash(ha);
1061
1062         if (optrom)
1063                 dma_free_coherent(&ha->pdev->dev,
1064                     OPTROM_BURST_SIZE, optrom, optrom_dma);
1065
1066         return ret;
1067 }
1068
1069 uint8_t *
1070 qla2x00_read_nvram_data(scsi_qla_host_t *ha, uint8_t *buf, uint32_t naddr,
1071     uint32_t bytes)
1072 {
1073         uint32_t i;
1074         uint16_t *wptr;
1075
1076         /* Word reads to NVRAM via registers. */
1077         wptr = (uint16_t *)buf;
1078         qla2x00_lock_nvram_access(ha);
1079         for (i = 0; i < bytes >> 1; i++, naddr++)
1080                 wptr[i] = cpu_to_le16(qla2x00_get_nvram_word(ha,
1081                     naddr));
1082         qla2x00_unlock_nvram_access(ha);
1083
1084         return buf;
1085 }
1086
1087 uint8_t *
1088 qla24xx_read_nvram_data(scsi_qla_host_t *ha, uint8_t *buf, uint32_t naddr,
1089     uint32_t bytes)
1090 {
1091         uint32_t i;
1092         uint32_t *dwptr;
1093
1094         /* Dword reads to flash. */
1095         dwptr = (uint32_t *)buf;
1096         for (i = 0; i < bytes >> 2; i++, naddr++)
1097                 dwptr[i] = cpu_to_le32(qla24xx_read_flash_dword(ha,
1098                     nvram_data_to_access_addr(naddr)));
1099
1100         return buf;
1101 }
1102
1103 int
1104 qla2x00_write_nvram_data(scsi_qla_host_t *ha, uint8_t *buf, uint32_t naddr,
1105     uint32_t bytes)
1106 {
1107         int ret, stat;
1108         uint32_t i;
1109         uint16_t *wptr;
1110         unsigned long flags;
1111
1112         ret = QLA_SUCCESS;
1113
1114         spin_lock_irqsave(&ha->hardware_lock, flags);
1115         qla2x00_lock_nvram_access(ha);
1116
1117         /* Disable NVRAM write-protection. */
1118         stat = qla2x00_clear_nvram_protection(ha);
1119
1120         wptr = (uint16_t *)buf;
1121         for (i = 0; i < bytes >> 1; i++, naddr++) {
1122                 qla2x00_write_nvram_word(ha, naddr,
1123                     cpu_to_le16(*wptr));
1124                 wptr++;
1125         }
1126
1127         /* Enable NVRAM write-protection. */
1128         qla2x00_set_nvram_protection(ha, stat);
1129
1130         qla2x00_unlock_nvram_access(ha);
1131         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1132
1133         return ret;
1134 }
1135
1136 int
1137 qla24xx_write_nvram_data(scsi_qla_host_t *ha, uint8_t *buf, uint32_t naddr,
1138     uint32_t bytes)
1139 {
1140         int ret;
1141         uint32_t i;
1142         uint32_t *dwptr;
1143         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1144
1145         ret = QLA_SUCCESS;
1146
1147         /* Enable flash write. */
1148         WRT_REG_DWORD(&reg->ctrl_status,
1149             RD_REG_DWORD(&reg->ctrl_status) | CSRX_FLASH_ENABLE);
1150         RD_REG_DWORD(&reg->ctrl_status);        /* PCI Posting. */
1151
1152         /* Disable NVRAM write-protection. */
1153         qla24xx_write_flash_dword(ha, nvram_conf_to_access_addr(0x101),
1154             0);
1155         qla24xx_write_flash_dword(ha, nvram_conf_to_access_addr(0x101),
1156             0);
1157
1158         /* Dword writes to flash. */
1159         dwptr = (uint32_t *)buf;
1160         for (i = 0; i < bytes >> 2; i++, naddr++, dwptr++) {
1161                 ret = qla24xx_write_flash_dword(ha,
1162                     nvram_data_to_access_addr(naddr),
1163                     cpu_to_le32(*dwptr));
1164                 if (ret != QLA_SUCCESS) {
1165                         DEBUG9(printk("%s(%ld) Unable to program "
1166                             "nvram address=%x data=%x.\n", __func__,
1167                             ha->host_no, naddr, *dwptr));
1168                         break;
1169                 }
1170         }
1171
1172         /* Enable NVRAM write-protection. */
1173         qla24xx_write_flash_dword(ha, nvram_conf_to_access_addr(0x101),
1174             0x8c);
1175
1176         /* Disable flash write. */
1177         WRT_REG_DWORD(&reg->ctrl_status,
1178             RD_REG_DWORD(&reg->ctrl_status) & ~CSRX_FLASH_ENABLE);
1179         RD_REG_DWORD(&reg->ctrl_status);        /* PCI Posting. */
1180
1181         return ret;
1182 }
1183
1184 uint8_t *
1185 qla25xx_read_nvram_data(scsi_qla_host_t *ha, uint8_t *buf, uint32_t naddr,
1186     uint32_t bytes)
1187 {
1188         uint32_t i;
1189         uint32_t *dwptr;
1190
1191         /* Dword reads to flash. */
1192         dwptr = (uint32_t *)buf;
1193         for (i = 0; i < bytes >> 2; i++, naddr++)
1194                 dwptr[i] = cpu_to_le32(qla24xx_read_flash_dword(ha,
1195                     flash_data_to_access_addr(ha->flt_region_vpd_nvram |
1196                     naddr)));
1197
1198         return buf;
1199 }
1200
1201 int
1202 qla25xx_write_nvram_data(scsi_qla_host_t *ha, uint8_t *buf, uint32_t naddr,
1203     uint32_t bytes)
1204 {
1205 #define RMW_BUFFER_SIZE (64 * 1024)
1206         uint8_t *dbuf;
1207
1208         dbuf = vmalloc(RMW_BUFFER_SIZE);
1209         if (!dbuf)
1210                 return QLA_MEMORY_ALLOC_FAILED;
1211         ha->isp_ops->read_optrom(ha, dbuf, ha->flt_region_vpd_nvram << 2,
1212             RMW_BUFFER_SIZE);
1213         memcpy(dbuf + (naddr << 2), buf, bytes);
1214         ha->isp_ops->write_optrom(ha, dbuf, ha->flt_region_vpd_nvram << 2,
1215             RMW_BUFFER_SIZE);
1216         vfree(dbuf);
1217
1218         return QLA_SUCCESS;
1219 }
1220
1221 static inline void
1222 qla2x00_flip_colors(scsi_qla_host_t *ha, uint16_t *pflags)
1223 {
1224         if (IS_QLA2322(ha)) {
1225                 /* Flip all colors. */
1226                 if (ha->beacon_color_state == QLA_LED_ALL_ON) {
1227                         /* Turn off. */
1228                         ha->beacon_color_state = 0;
1229                         *pflags = GPIO_LED_ALL_OFF;
1230                 } else {
1231                         /* Turn on. */
1232                         ha->beacon_color_state = QLA_LED_ALL_ON;
1233                         *pflags = GPIO_LED_RGA_ON;
1234                 }
1235         } else {
1236                 /* Flip green led only. */
1237                 if (ha->beacon_color_state == QLA_LED_GRN_ON) {
1238                         /* Turn off. */
1239                         ha->beacon_color_state = 0;
1240                         *pflags = GPIO_LED_GREEN_OFF_AMBER_OFF;
1241                 } else {
1242                         /* Turn on. */
1243                         ha->beacon_color_state = QLA_LED_GRN_ON;
1244                         *pflags = GPIO_LED_GREEN_ON_AMBER_OFF;
1245                 }
1246         }
1247 }
1248
1249 #define PIO_REG(h, r) ((h)->pio_address + offsetof(struct device_reg_2xxx, r))
1250
1251 void
1252 qla2x00_beacon_blink(struct scsi_qla_host *ha)
1253 {
1254         uint16_t gpio_enable;
1255         uint16_t gpio_data;
1256         uint16_t led_color = 0;
1257         unsigned long flags;
1258         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1259
1260         spin_lock_irqsave(&ha->hardware_lock, flags);
1261
1262         /* Save the Original GPIOE. */
1263         if (ha->pio_address) {
1264                 gpio_enable = RD_REG_WORD_PIO(PIO_REG(ha, gpioe));
1265                 gpio_data = RD_REG_WORD_PIO(PIO_REG(ha, gpiod));
1266         } else {
1267                 gpio_enable = RD_REG_WORD(&reg->gpioe);
1268                 gpio_data = RD_REG_WORD(&reg->gpiod);
1269         }
1270
1271         /* Set the modified gpio_enable values */
1272         gpio_enable |= GPIO_LED_MASK;
1273
1274         if (ha->pio_address) {
1275                 WRT_REG_WORD_PIO(PIO_REG(ha, gpioe), gpio_enable);
1276         } else {
1277                 WRT_REG_WORD(&reg->gpioe, gpio_enable);
1278                 RD_REG_WORD(&reg->gpioe);
1279         }
1280
1281         qla2x00_flip_colors(ha, &led_color);
1282
1283         /* Clear out any previously set LED color. */
1284         gpio_data &= ~GPIO_LED_MASK;
1285
1286         /* Set the new input LED color to GPIOD. */
1287         gpio_data |= led_color;
1288
1289         /* Set the modified gpio_data values */
1290         if (ha->pio_address) {
1291                 WRT_REG_WORD_PIO(PIO_REG(ha, gpiod), gpio_data);
1292         } else {
1293                 WRT_REG_WORD(&reg->gpiod, gpio_data);
1294                 RD_REG_WORD(&reg->gpiod);
1295         }
1296
1297         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1298 }
1299
1300 int
1301 qla2x00_beacon_on(struct scsi_qla_host *ha)
1302 {
1303         uint16_t gpio_enable;
1304         uint16_t gpio_data;
1305         unsigned long flags;
1306         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1307
1308         ha->fw_options[1] &= ~FO1_SET_EMPHASIS_SWING;
1309         ha->fw_options[1] |= FO1_DISABLE_GPIO6_7;
1310
1311         if (qla2x00_set_fw_options(ha, ha->fw_options) != QLA_SUCCESS) {
1312                 qla_printk(KERN_WARNING, ha,
1313                     "Unable to update fw options (beacon on).\n");
1314                 return QLA_FUNCTION_FAILED;
1315         }
1316
1317         /* Turn off LEDs. */
1318         spin_lock_irqsave(&ha->hardware_lock, flags);
1319         if (ha->pio_address) {
1320                 gpio_enable = RD_REG_WORD_PIO(PIO_REG(ha, gpioe));
1321                 gpio_data = RD_REG_WORD_PIO(PIO_REG(ha, gpiod));
1322         } else {
1323                 gpio_enable = RD_REG_WORD(&reg->gpioe);
1324                 gpio_data = RD_REG_WORD(&reg->gpiod);
1325         }
1326         gpio_enable |= GPIO_LED_MASK;
1327
1328         /* Set the modified gpio_enable values. */
1329         if (ha->pio_address) {
1330                 WRT_REG_WORD_PIO(PIO_REG(ha, gpioe), gpio_enable);
1331         } else {
1332                 WRT_REG_WORD(&reg->gpioe, gpio_enable);
1333                 RD_REG_WORD(&reg->gpioe);
1334         }
1335
1336         /* Clear out previously set LED colour. */
1337         gpio_data &= ~GPIO_LED_MASK;
1338         if (ha->pio_address) {
1339                 WRT_REG_WORD_PIO(PIO_REG(ha, gpiod), gpio_data);
1340         } else {
1341                 WRT_REG_WORD(&reg->gpiod, gpio_data);
1342                 RD_REG_WORD(&reg->gpiod);
1343         }
1344         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1345
1346         /*
1347          * Let the per HBA timer kick off the blinking process based on
1348          * the following flags. No need to do anything else now.
1349          */
1350         ha->beacon_blink_led = 1;
1351         ha->beacon_color_state = 0;
1352
1353         return QLA_SUCCESS;
1354 }
1355
1356 int
1357 qla2x00_beacon_off(struct scsi_qla_host *ha)
1358 {
1359         int rval = QLA_SUCCESS;
1360
1361         ha->beacon_blink_led = 0;
1362
1363         /* Set the on flag so when it gets flipped it will be off. */
1364         if (IS_QLA2322(ha))
1365                 ha->beacon_color_state = QLA_LED_ALL_ON;
1366         else
1367                 ha->beacon_color_state = QLA_LED_GRN_ON;
1368
1369         ha->isp_ops->beacon_blink(ha);  /* This turns green LED off */
1370
1371         ha->fw_options[1] &= ~FO1_SET_EMPHASIS_SWING;
1372         ha->fw_options[1] &= ~FO1_DISABLE_GPIO6_7;
1373
1374         rval = qla2x00_set_fw_options(ha, ha->fw_options);
1375         if (rval != QLA_SUCCESS)
1376                 qla_printk(KERN_WARNING, ha,
1377                     "Unable to update fw options (beacon off).\n");
1378         return rval;
1379 }
1380
1381
1382 static inline void
1383 qla24xx_flip_colors(scsi_qla_host_t *ha, uint16_t *pflags)
1384 {
1385         /* Flip all colors. */
1386         if (ha->beacon_color_state == QLA_LED_ALL_ON) {
1387                 /* Turn off. */
1388                 ha->beacon_color_state = 0;
1389                 *pflags = 0;
1390         } else {
1391                 /* Turn on. */
1392                 ha->beacon_color_state = QLA_LED_ALL_ON;
1393                 *pflags = GPDX_LED_YELLOW_ON | GPDX_LED_AMBER_ON;
1394         }
1395 }
1396
1397 void
1398 qla24xx_beacon_blink(struct scsi_qla_host *ha)
1399 {
1400         uint16_t led_color = 0;
1401         uint32_t gpio_data;
1402         unsigned long flags;
1403         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1404
1405         /* Save the Original GPIOD. */
1406         spin_lock_irqsave(&ha->hardware_lock, flags);
1407         gpio_data = RD_REG_DWORD(&reg->gpiod);
1408
1409         /* Enable the gpio_data reg for update. */
1410         gpio_data |= GPDX_LED_UPDATE_MASK;
1411
1412         WRT_REG_DWORD(&reg->gpiod, gpio_data);
1413         gpio_data = RD_REG_DWORD(&reg->gpiod);
1414
1415         /* Set the color bits. */
1416         qla24xx_flip_colors(ha, &led_color);
1417
1418         /* Clear out any previously set LED color. */
1419         gpio_data &= ~GPDX_LED_COLOR_MASK;
1420
1421         /* Set the new input LED color to GPIOD. */
1422         gpio_data |= led_color;
1423
1424         /* Set the modified gpio_data values. */
1425         WRT_REG_DWORD(&reg->gpiod, gpio_data);
1426         gpio_data = RD_REG_DWORD(&reg->gpiod);
1427         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1428 }
1429
1430 int
1431 qla24xx_beacon_on(struct scsi_qla_host *ha)
1432 {
1433         uint32_t gpio_data;
1434         unsigned long flags;
1435         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1436
1437         if (ha->beacon_blink_led == 0) {
1438                 /* Enable firmware for update */
1439                 ha->fw_options[1] |= ADD_FO1_DISABLE_GPIO_LED_CTRL;
1440
1441                 if (qla2x00_set_fw_options(ha, ha->fw_options) != QLA_SUCCESS)
1442                         return QLA_FUNCTION_FAILED;
1443
1444                 if (qla2x00_get_fw_options(ha, ha->fw_options) !=
1445                     QLA_SUCCESS) {
1446                         qla_printk(KERN_WARNING, ha,
1447                             "Unable to update fw options (beacon on).\n");
1448                         return QLA_FUNCTION_FAILED;
1449                 }
1450
1451                 spin_lock_irqsave(&ha->hardware_lock, flags);
1452                 gpio_data = RD_REG_DWORD(&reg->gpiod);
1453
1454                 /* Enable the gpio_data reg for update. */
1455                 gpio_data |= GPDX_LED_UPDATE_MASK;
1456                 WRT_REG_DWORD(&reg->gpiod, gpio_data);
1457                 RD_REG_DWORD(&reg->gpiod);
1458
1459                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1460         }
1461
1462         /* So all colors blink together. */
1463         ha->beacon_color_state = 0;
1464
1465         /* Let the per HBA timer kick off the blinking process. */
1466         ha->beacon_blink_led = 1;
1467
1468         return QLA_SUCCESS;
1469 }
1470
1471 int
1472 qla24xx_beacon_off(struct scsi_qla_host *ha)
1473 {
1474         uint32_t gpio_data;
1475         unsigned long flags;
1476         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1477
1478         ha->beacon_blink_led = 0;
1479         ha->beacon_color_state = QLA_LED_ALL_ON;
1480
1481         ha->isp_ops->beacon_blink(ha);  /* Will flip to all off. */
1482
1483         /* Give control back to firmware. */
1484         spin_lock_irqsave(&ha->hardware_lock, flags);
1485         gpio_data = RD_REG_DWORD(&reg->gpiod);
1486
1487         /* Disable the gpio_data reg for update. */
1488         gpio_data &= ~GPDX_LED_UPDATE_MASK;
1489         WRT_REG_DWORD(&reg->gpiod, gpio_data);
1490         RD_REG_DWORD(&reg->gpiod);
1491         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1492
1493         ha->fw_options[1] &= ~ADD_FO1_DISABLE_GPIO_LED_CTRL;
1494
1495         if (qla2x00_set_fw_options(ha, ha->fw_options) != QLA_SUCCESS) {
1496                 qla_printk(KERN_WARNING, ha,
1497                     "Unable to update fw options (beacon off).\n");
1498                 return QLA_FUNCTION_FAILED;
1499         }
1500
1501         if (qla2x00_get_fw_options(ha, ha->fw_options) != QLA_SUCCESS) {
1502                 qla_printk(KERN_WARNING, ha,
1503                     "Unable to get fw options (beacon off).\n");
1504                 return QLA_FUNCTION_FAILED;
1505         }
1506
1507         return QLA_SUCCESS;
1508 }
1509
1510
1511 /*
1512  * Flash support routines
1513  */
1514
1515 /**
1516  * qla2x00_flash_enable() - Setup flash for reading and writing.
1517  * @ha: HA context
1518  */
1519 static void
1520 qla2x00_flash_enable(scsi_qla_host_t *ha)
1521 {
1522         uint16_t data;
1523         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1524
1525         data = RD_REG_WORD(&reg->ctrl_status);
1526         data |= CSR_FLASH_ENABLE;
1527         WRT_REG_WORD(&reg->ctrl_status, data);
1528         RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
1529 }
1530
1531 /**
1532  * qla2x00_flash_disable() - Disable flash and allow RISC to run.
1533  * @ha: HA context
1534  */
1535 static void
1536 qla2x00_flash_disable(scsi_qla_host_t *ha)
1537 {
1538         uint16_t data;
1539         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1540
1541         data = RD_REG_WORD(&reg->ctrl_status);
1542         data &= ~(CSR_FLASH_ENABLE);
1543         WRT_REG_WORD(&reg->ctrl_status, data);
1544         RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
1545 }
1546
1547 /**
1548  * qla2x00_read_flash_byte() - Reads a byte from flash
1549  * @ha: HA context
1550  * @addr: Address in flash to read
1551  *
1552  * A word is read from the chip, but, only the lower byte is valid.
1553  *
1554  * Returns the byte read from flash @addr.
1555  */
1556 static uint8_t
1557 qla2x00_read_flash_byte(scsi_qla_host_t *ha, uint32_t addr)
1558 {
1559         uint16_t data;
1560         uint16_t bank_select;
1561         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1562
1563         bank_select = RD_REG_WORD(&reg->ctrl_status);
1564
1565         if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
1566                 /* Specify 64K address range: */
1567                 /*  clear out Module Select and Flash Address bits [19:16]. */
1568                 bank_select &= ~0xf8;
1569                 bank_select |= addr >> 12 & 0xf0;
1570                 bank_select |= CSR_FLASH_64K_BANK;
1571                 WRT_REG_WORD(&reg->ctrl_status, bank_select);
1572                 RD_REG_WORD(&reg->ctrl_status); /* PCI Posting. */
1573
1574                 WRT_REG_WORD(&reg->flash_address, (uint16_t)addr);
1575                 data = RD_REG_WORD(&reg->flash_data);
1576
1577                 return (uint8_t)data;
1578         }
1579
1580         /* Setup bit 16 of flash address. */
1581         if ((addr & BIT_16) && ((bank_select & CSR_FLASH_64K_BANK) == 0)) {
1582                 bank_select |= CSR_FLASH_64K_BANK;
1583                 WRT_REG_WORD(&reg->ctrl_status, bank_select);
1584                 RD_REG_WORD(&reg->ctrl_status); /* PCI Posting. */
1585         } else if (((addr & BIT_16) == 0) &&
1586             (bank_select & CSR_FLASH_64K_BANK)) {
1587                 bank_select &= ~(CSR_FLASH_64K_BANK);
1588                 WRT_REG_WORD(&reg->ctrl_status, bank_select);
1589                 RD_REG_WORD(&reg->ctrl_status); /* PCI Posting. */
1590         }
1591
1592         /* Always perform IO mapped accesses to the FLASH registers. */
1593         if (ha->pio_address) {
1594                 uint16_t data2;
1595
1596                 WRT_REG_WORD_PIO(PIO_REG(ha, flash_address), (uint16_t)addr);
1597                 do {
1598                         data = RD_REG_WORD_PIO(PIO_REG(ha, flash_data));
1599                         barrier();
1600                         cpu_relax();
1601                         data2 = RD_REG_WORD_PIO(PIO_REG(ha, flash_data));
1602                 } while (data != data2);
1603         } else {
1604                 WRT_REG_WORD(&reg->flash_address, (uint16_t)addr);
1605                 data = qla2x00_debounce_register(&reg->flash_data);
1606         }
1607
1608         return (uint8_t)data;
1609 }
1610
1611 /**
1612  * qla2x00_write_flash_byte() - Write a byte to flash
1613  * @ha: HA context
1614  * @addr: Address in flash to write
1615  * @data: Data to write
1616  */
1617 static void
1618 qla2x00_write_flash_byte(scsi_qla_host_t *ha, uint32_t addr, uint8_t data)
1619 {
1620         uint16_t bank_select;
1621         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1622
1623         bank_select = RD_REG_WORD(&reg->ctrl_status);
1624         if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
1625                 /* Specify 64K address range: */
1626                 /*  clear out Module Select and Flash Address bits [19:16]. */
1627                 bank_select &= ~0xf8;
1628                 bank_select |= addr >> 12 & 0xf0;
1629                 bank_select |= CSR_FLASH_64K_BANK;
1630                 WRT_REG_WORD(&reg->ctrl_status, bank_select);
1631                 RD_REG_WORD(&reg->ctrl_status); /* PCI Posting. */
1632
1633                 WRT_REG_WORD(&reg->flash_address, (uint16_t)addr);
1634                 RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
1635                 WRT_REG_WORD(&reg->flash_data, (uint16_t)data);
1636                 RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
1637
1638                 return;
1639         }
1640
1641         /* Setup bit 16 of flash address. */
1642         if ((addr & BIT_16) && ((bank_select & CSR_FLASH_64K_BANK) == 0)) {
1643                 bank_select |= CSR_FLASH_64K_BANK;
1644                 WRT_REG_WORD(&reg->ctrl_status, bank_select);
1645                 RD_REG_WORD(&reg->ctrl_status); /* PCI Posting. */
1646         } else if (((addr & BIT_16) == 0) &&
1647             (bank_select & CSR_FLASH_64K_BANK)) {
1648                 bank_select &= ~(CSR_FLASH_64K_BANK);
1649                 WRT_REG_WORD(&reg->ctrl_status, bank_select);
1650                 RD_REG_WORD(&reg->ctrl_status); /* PCI Posting. */
1651         }
1652
1653         /* Always perform IO mapped accesses to the FLASH registers. */
1654         if (ha->pio_address) {
1655                 WRT_REG_WORD_PIO(PIO_REG(ha, flash_address), (uint16_t)addr);
1656                 WRT_REG_WORD_PIO(PIO_REG(ha, flash_data), (uint16_t)data);
1657         } else {
1658                 WRT_REG_WORD(&reg->flash_address, (uint16_t)addr);
1659                 RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
1660                 WRT_REG_WORD(&reg->flash_data, (uint16_t)data);
1661                 RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
1662         }
1663 }
1664
1665 /**
1666  * qla2x00_poll_flash() - Polls flash for completion.
1667  * @ha: HA context
1668  * @addr: Address in flash to poll
1669  * @poll_data: Data to be polled
1670  * @man_id: Flash manufacturer ID
1671  * @flash_id: Flash ID
1672  *
1673  * This function polls the device until bit 7 of what is read matches data
1674  * bit 7 or until data bit 5 becomes a 1.  If that hapens, the flash ROM timed
1675  * out (a fatal error).  The flash book recommeds reading bit 7 again after
1676  * reading bit 5 as a 1.
1677  *
1678  * Returns 0 on success, else non-zero.
1679  */
1680 static int
1681 qla2x00_poll_flash(scsi_qla_host_t *ha, uint32_t addr, uint8_t poll_data,
1682     uint8_t man_id, uint8_t flash_id)
1683 {
1684         int status;
1685         uint8_t flash_data;
1686         uint32_t cnt;
1687
1688         status = 1;
1689
1690         /* Wait for 30 seconds for command to finish. */
1691         poll_data &= BIT_7;
1692         for (cnt = 3000000; cnt; cnt--) {
1693                 flash_data = qla2x00_read_flash_byte(ha, addr);
1694                 if ((flash_data & BIT_7) == poll_data) {
1695                         status = 0;
1696                         break;
1697                 }
1698
1699                 if (man_id != 0x40 && man_id != 0xda) {
1700                         if ((flash_data & BIT_5) && cnt > 2)
1701                                 cnt = 2;
1702                 }
1703                 udelay(10);
1704                 barrier();
1705                 cond_resched();
1706         }
1707         return status;
1708 }
1709
1710 /**
1711  * qla2x00_program_flash_address() - Programs a flash address
1712  * @ha: HA context
1713  * @addr: Address in flash to program
1714  * @data: Data to be written in flash
1715  * @man_id: Flash manufacturer ID
1716  * @flash_id: Flash ID
1717  *
1718  * Returns 0 on success, else non-zero.
1719  */
1720 static int
1721 qla2x00_program_flash_address(scsi_qla_host_t *ha, uint32_t addr, uint8_t data,
1722     uint8_t man_id, uint8_t flash_id)
1723 {
1724         /* Write Program Command Sequence. */
1725         if (IS_OEM_001(ha)) {
1726                 qla2x00_write_flash_byte(ha, 0xaaa, 0xaa);
1727                 qla2x00_write_flash_byte(ha, 0x555, 0x55);
1728                 qla2x00_write_flash_byte(ha, 0xaaa, 0xa0);
1729                 qla2x00_write_flash_byte(ha, addr, data);
1730         } else {
1731                 if (man_id == 0xda && flash_id == 0xc1) {
1732                         qla2x00_write_flash_byte(ha, addr, data);
1733                         if (addr & 0x7e)
1734                                 return 0;
1735                 } else {
1736                         qla2x00_write_flash_byte(ha, 0x5555, 0xaa);
1737                         qla2x00_write_flash_byte(ha, 0x2aaa, 0x55);
1738                         qla2x00_write_flash_byte(ha, 0x5555, 0xa0);
1739                         qla2x00_write_flash_byte(ha, addr, data);
1740                 }
1741         }
1742
1743         udelay(150);
1744
1745         /* Wait for write to complete. */
1746         return qla2x00_poll_flash(ha, addr, data, man_id, flash_id);
1747 }
1748
1749 /**
1750  * qla2x00_erase_flash() - Erase the flash.
1751  * @ha: HA context
1752  * @man_id: Flash manufacturer ID
1753  * @flash_id: Flash ID
1754  *
1755  * Returns 0 on success, else non-zero.
1756  */
1757 static int
1758 qla2x00_erase_flash(scsi_qla_host_t *ha, uint8_t man_id, uint8_t flash_id)
1759 {
1760         /* Individual Sector Erase Command Sequence */
1761         if (IS_OEM_001(ha)) {
1762                 qla2x00_write_flash_byte(ha, 0xaaa, 0xaa);
1763                 qla2x00_write_flash_byte(ha, 0x555, 0x55);
1764                 qla2x00_write_flash_byte(ha, 0xaaa, 0x80);
1765                 qla2x00_write_flash_byte(ha, 0xaaa, 0xaa);
1766                 qla2x00_write_flash_byte(ha, 0x555, 0x55);
1767                 qla2x00_write_flash_byte(ha, 0xaaa, 0x10);
1768         } else {
1769                 qla2x00_write_flash_byte(ha, 0x5555, 0xaa);
1770                 qla2x00_write_flash_byte(ha, 0x2aaa, 0x55);
1771                 qla2x00_write_flash_byte(ha, 0x5555, 0x80);
1772                 qla2x00_write_flash_byte(ha, 0x5555, 0xaa);
1773                 qla2x00_write_flash_byte(ha, 0x2aaa, 0x55);
1774                 qla2x00_write_flash_byte(ha, 0x5555, 0x10);
1775         }
1776
1777         udelay(150);
1778
1779         /* Wait for erase to complete. */
1780         return qla2x00_poll_flash(ha, 0x00, 0x80, man_id, flash_id);
1781 }
1782
1783 /**
1784  * qla2x00_erase_flash_sector() - Erase a flash sector.
1785  * @ha: HA context
1786  * @addr: Flash sector to erase
1787  * @sec_mask: Sector address mask
1788  * @man_id: Flash manufacturer ID
1789  * @flash_id: Flash ID
1790  *
1791  * Returns 0 on success, else non-zero.
1792  */
1793 static int
1794 qla2x00_erase_flash_sector(scsi_qla_host_t *ha, uint32_t addr,
1795     uint32_t sec_mask, uint8_t man_id, uint8_t flash_id)
1796 {
1797         /* Individual Sector Erase Command Sequence */
1798         qla2x00_write_flash_byte(ha, 0x5555, 0xaa);
1799         qla2x00_write_flash_byte(ha, 0x2aaa, 0x55);
1800         qla2x00_write_flash_byte(ha, 0x5555, 0x80);
1801         qla2x00_write_flash_byte(ha, 0x5555, 0xaa);
1802         qla2x00_write_flash_byte(ha, 0x2aaa, 0x55);
1803         if (man_id == 0x1f && flash_id == 0x13)
1804                 qla2x00_write_flash_byte(ha, addr & sec_mask, 0x10);
1805         else
1806                 qla2x00_write_flash_byte(ha, addr & sec_mask, 0x30);
1807
1808         udelay(150);
1809
1810         /* Wait for erase to complete. */
1811         return qla2x00_poll_flash(ha, addr, 0x80, man_id, flash_id);
1812 }
1813
1814 /**
1815  * qla2x00_get_flash_manufacturer() - Read manufacturer ID from flash chip.
1816  * @man_id: Flash manufacturer ID
1817  * @flash_id: Flash ID
1818  */
1819 static void
1820 qla2x00_get_flash_manufacturer(scsi_qla_host_t *ha, uint8_t *man_id,
1821     uint8_t *flash_id)
1822 {
1823         qla2x00_write_flash_byte(ha, 0x5555, 0xaa);
1824         qla2x00_write_flash_byte(ha, 0x2aaa, 0x55);
1825         qla2x00_write_flash_byte(ha, 0x5555, 0x90);
1826         *man_id = qla2x00_read_flash_byte(ha, 0x0000);
1827         *flash_id = qla2x00_read_flash_byte(ha, 0x0001);
1828         qla2x00_write_flash_byte(ha, 0x5555, 0xaa);
1829         qla2x00_write_flash_byte(ha, 0x2aaa, 0x55);
1830         qla2x00_write_flash_byte(ha, 0x5555, 0xf0);
1831 }
1832
1833 static void
1834 qla2x00_read_flash_data(scsi_qla_host_t *ha, uint8_t *tmp_buf, uint32_t saddr,
1835         uint32_t length)
1836 {
1837         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1838         uint32_t midpoint, ilength;
1839         uint8_t data;
1840
1841         midpoint = length / 2;
1842
1843         WRT_REG_WORD(&reg->nvram, 0);
1844         RD_REG_WORD(&reg->nvram);
1845         for (ilength = 0; ilength < length; saddr++, ilength++, tmp_buf++) {
1846                 if (ilength == midpoint) {
1847                         WRT_REG_WORD(&reg->nvram, NVR_SELECT);
1848                         RD_REG_WORD(&reg->nvram);
1849                 }
1850                 data = qla2x00_read_flash_byte(ha, saddr);
1851                 if (saddr % 100)
1852                         udelay(10);
1853                 *tmp_buf = data;
1854                 cond_resched();
1855         }
1856 }
1857
1858 static inline void
1859 qla2x00_suspend_hba(struct scsi_qla_host *ha)
1860 {
1861         int cnt;
1862         unsigned long flags;
1863         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1864
1865         /* Suspend HBA. */
1866         scsi_block_requests(ha->host);
1867         ha->isp_ops->disable_intrs(ha);
1868         set_bit(MBX_UPDATE_FLASH_ACTIVE, &ha->mbx_cmd_flags);
1869
1870         /* Pause RISC. */
1871         spin_lock_irqsave(&ha->hardware_lock, flags);
1872         WRT_REG_WORD(&reg->hccr, HCCR_PAUSE_RISC);
1873         RD_REG_WORD(&reg->hccr);
1874         if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
1875                 for (cnt = 0; cnt < 30000; cnt++) {
1876                         if ((RD_REG_WORD(&reg->hccr) & HCCR_RISC_PAUSE) != 0)
1877                                 break;
1878                         udelay(100);
1879                 }
1880         } else {
1881                 udelay(10);
1882         }
1883         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1884 }
1885
1886 static inline void
1887 qla2x00_resume_hba(struct scsi_qla_host *ha)
1888 {
1889         /* Resume HBA. */
1890         clear_bit(MBX_UPDATE_FLASH_ACTIVE, &ha->mbx_cmd_flags);
1891         set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
1892         qla2xxx_wake_dpc(ha);
1893         qla2x00_wait_for_hba_online(ha);
1894         scsi_unblock_requests(ha->host);
1895 }
1896
1897 uint8_t *
1898 qla2x00_read_optrom_data(struct scsi_qla_host *ha, uint8_t *buf,
1899     uint32_t offset, uint32_t length)
1900 {
1901         uint32_t addr, midpoint;
1902         uint8_t *data;
1903         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1904
1905         /* Suspend HBA. */
1906         qla2x00_suspend_hba(ha);
1907
1908         /* Go with read. */
1909         midpoint = ha->optrom_size / 2;
1910
1911         qla2x00_flash_enable(ha);
1912         WRT_REG_WORD(&reg->nvram, 0);
1913         RD_REG_WORD(&reg->nvram);               /* PCI Posting. */
1914         for (addr = offset, data = buf; addr < length; addr++, data++) {
1915                 if (addr == midpoint) {
1916                         WRT_REG_WORD(&reg->nvram, NVR_SELECT);
1917                         RD_REG_WORD(&reg->nvram);       /* PCI Posting. */
1918                 }
1919
1920                 *data = qla2x00_read_flash_byte(ha, addr);
1921         }
1922         qla2x00_flash_disable(ha);
1923
1924         /* Resume HBA. */
1925         qla2x00_resume_hba(ha);
1926
1927         return buf;
1928 }
1929
1930 int
1931 qla2x00_write_optrom_data(struct scsi_qla_host *ha, uint8_t *buf,
1932     uint32_t offset, uint32_t length)
1933 {
1934
1935         int rval;
1936         uint8_t man_id, flash_id, sec_number, data;
1937         uint16_t wd;
1938         uint32_t addr, liter, sec_mask, rest_addr;
1939         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1940
1941         /* Suspend HBA. */
1942         qla2x00_suspend_hba(ha);
1943
1944         rval = QLA_SUCCESS;
1945         sec_number = 0;
1946
1947         /* Reset ISP chip. */
1948         WRT_REG_WORD(&reg->ctrl_status, CSR_ISP_SOFT_RESET);
1949         pci_read_config_word(ha->pdev, PCI_COMMAND, &wd);
1950
1951         /* Go with write. */
1952         qla2x00_flash_enable(ha);
1953         do {    /* Loop once to provide quick error exit */
1954                 /* Structure of flash memory based on manufacturer */
1955                 if (IS_OEM_001(ha)) {
1956                         /* OEM variant with special flash part. */
1957                         man_id = flash_id = 0;
1958                         rest_addr = 0xffff;
1959                         sec_mask   = 0x10000;
1960                         goto update_flash;
1961                 }
1962                 qla2x00_get_flash_manufacturer(ha, &man_id, &flash_id);
1963                 switch (man_id) {
1964                 case 0x20: /* ST flash. */
1965                         if (flash_id == 0xd2 || flash_id == 0xe3) {
1966                                 /*
1967                                  * ST m29w008at part - 64kb sector size with
1968                                  * 32kb,8kb,8kb,16kb sectors at memory address
1969                                  * 0xf0000.
1970                                  */
1971                                 rest_addr = 0xffff;
1972                                 sec_mask = 0x10000;
1973                                 break;
1974                         }
1975                         /*
1976                          * ST m29w010b part - 16kb sector size
1977                          * Default to 16kb sectors
1978                          */
1979                         rest_addr = 0x3fff;
1980                         sec_mask = 0x1c000;
1981                         break;
1982                 case 0x40: /* Mostel flash. */
1983                         /* Mostel v29c51001 part - 512 byte sector size. */
1984                         rest_addr = 0x1ff;
1985                         sec_mask = 0x1fe00;
1986                         break;
1987                 case 0xbf: /* SST flash. */
1988                         /* SST39sf10 part - 4kb sector size. */
1989                         rest_addr = 0xfff;
1990                         sec_mask = 0x1f000;
1991                         break;
1992                 case 0xda: /* Winbond flash. */
1993                         /* Winbond W29EE011 part - 256 byte sector size. */
1994                         rest_addr = 0x7f;
1995                         sec_mask = 0x1ff80;
1996                         break;
1997                 case 0xc2: /* Macronix flash. */
1998                         /* 64k sector size. */
1999                         if (flash_id == 0x38 || flash_id == 0x4f) {
2000                                 rest_addr = 0xffff;
2001                                 sec_mask = 0x10000;
2002                                 break;
2003                         }
2004                         /* Fall through... */
2005
2006                 case 0x1f: /* Atmel flash. */
2007                         /* 512k sector size. */
2008                         if (flash_id == 0x13) {
2009                                 rest_addr = 0x7fffffff;
2010                                 sec_mask =   0x80000000;
2011                                 break;
2012                         }
2013                         /* Fall through... */
2014
2015                 case 0x01: /* AMD flash. */
2016                         if (flash_id == 0x38 || flash_id == 0x40 ||
2017                             flash_id == 0x4f) {
2018                                 /* Am29LV081 part - 64kb sector size. */
2019                                 /* Am29LV002BT part - 64kb sector size. */
2020                                 rest_addr = 0xffff;
2021                                 sec_mask = 0x10000;
2022                                 break;
2023                         } else if (flash_id == 0x3e) {
2024                                 /*
2025                                  * Am29LV008b part - 64kb sector size with
2026                                  * 32kb,8kb,8kb,16kb sector at memory address
2027                                  * h0xf0000.
2028                                  */
2029                                 rest_addr = 0xffff;
2030                                 sec_mask = 0x10000;
2031                                 break;
2032                         } else if (flash_id == 0x20 || flash_id == 0x6e) {
2033                                 /*
2034                                  * Am29LV010 part or AM29f010 - 16kb sector
2035                                  * size.
2036                                  */
2037                                 rest_addr = 0x3fff;
2038                                 sec_mask = 0x1c000;
2039                                 break;
2040                         } else if (flash_id == 0x6d) {
2041                                 /* Am29LV001 part - 8kb sector size. */
2042                                 rest_addr = 0x1fff;
2043                                 sec_mask = 0x1e000;
2044                                 break;
2045                         }
2046                 default:
2047                         /* Default to 16 kb sector size. */
2048                         rest_addr = 0x3fff;
2049                         sec_mask = 0x1c000;
2050                         break;
2051                 }
2052
2053 update_flash:
2054                 if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
2055                         if (qla2x00_erase_flash(ha, man_id, flash_id)) {
2056                                 rval = QLA_FUNCTION_FAILED;
2057                                 break;
2058                         }
2059                 }
2060
2061                 for (addr = offset, liter = 0; liter < length; liter++,
2062                     addr++) {
2063                         data = buf[liter];
2064                         /* Are we at the beginning of a sector? */
2065                         if ((addr & rest_addr) == 0) {
2066                                 if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
2067                                         if (addr >= 0x10000UL) {
2068                                                 if (((addr >> 12) & 0xf0) &&
2069                                                     ((man_id == 0x01 &&
2070                                                         flash_id == 0x3e) ||
2071                                                      (man_id == 0x20 &&
2072                                                          flash_id == 0xd2))) {
2073                                                         sec_number++;
2074                                                         if (sec_number == 1) {
2075                                                                 rest_addr =
2076                                                                     0x7fff;
2077                                                                 sec_mask =
2078                                                                     0x18000;
2079                                                         } else if (
2080                                                             sec_number == 2 ||
2081                                                             sec_number == 3) {
2082                                                                 rest_addr =
2083                                                                     0x1fff;
2084                                                                 sec_mask =
2085                                                                     0x1e000;
2086                                                         } else if (
2087                                                             sec_number == 4) {
2088                                                                 rest_addr =
2089                                                                     0x3fff;
2090                                                                 sec_mask =
2091                                                                     0x1c000;
2092                                                         }
2093                                                 }
2094                                         }
2095                                 } else if (addr == ha->optrom_size / 2) {
2096                                         WRT_REG_WORD(&reg->nvram, NVR_SELECT);
2097                                         RD_REG_WORD(&reg->nvram);
2098                                 }
2099
2100                                 if (flash_id == 0xda && man_id == 0xc1) {
2101                                         qla2x00_write_flash_byte(ha, 0x5555,
2102                                             0xaa);
2103                                         qla2x00_write_flash_byte(ha, 0x2aaa,
2104                                             0x55);
2105                                         qla2x00_write_flash_byte(ha, 0x5555,
2106                                             0xa0);
2107                                 } else if (!IS_QLA2322(ha) && !IS_QLA6322(ha)) {
2108                                         /* Then erase it */
2109                                         if (qla2x00_erase_flash_sector(ha,
2110                                             addr, sec_mask, man_id,
2111                                             flash_id)) {
2112                                                 rval = QLA_FUNCTION_FAILED;
2113                                                 break;
2114                                         }
2115                                         if (man_id == 0x01 && flash_id == 0x6d)
2116                                                 sec_number++;
2117                                 }
2118                         }
2119
2120                         if (man_id == 0x01 && flash_id == 0x6d) {
2121                                 if (sec_number == 1 &&
2122                                     addr == (rest_addr - 1)) {
2123                                         rest_addr = 0x0fff;
2124                                         sec_mask   = 0x1f000;
2125                                 } else if (sec_number == 3 && (addr & 0x7ffe)) {
2126                                         rest_addr = 0x3fff;
2127                                         sec_mask   = 0x1c000;
2128                                 }
2129                         }
2130
2131                         if (qla2x00_program_flash_address(ha, addr, data,
2132                             man_id, flash_id)) {
2133                                 rval = QLA_FUNCTION_FAILED;
2134                                 break;
2135                         }
2136                         cond_resched();
2137                 }
2138         } while (0);
2139         qla2x00_flash_disable(ha);
2140
2141         /* Resume HBA. */
2142         qla2x00_resume_hba(ha);
2143
2144         return rval;
2145 }
2146
2147 uint8_t *
2148 qla24xx_read_optrom_data(struct scsi_qla_host *ha, uint8_t *buf,
2149     uint32_t offset, uint32_t length)
2150 {
2151         /* Suspend HBA. */
2152         scsi_block_requests(ha->host);
2153         set_bit(MBX_UPDATE_FLASH_ACTIVE, &ha->mbx_cmd_flags);
2154
2155         /* Go with read. */
2156         qla24xx_read_flash_data(ha, (uint32_t *)buf, offset >> 2, length >> 2);
2157
2158         /* Resume HBA. */
2159         clear_bit(MBX_UPDATE_FLASH_ACTIVE, &ha->mbx_cmd_flags);
2160         scsi_unblock_requests(ha->host);
2161
2162         return buf;
2163 }
2164
2165 int
2166 qla24xx_write_optrom_data(struct scsi_qla_host *ha, uint8_t *buf,
2167     uint32_t offset, uint32_t length)
2168 {
2169         int rval;
2170
2171         /* Suspend HBA. */
2172         scsi_block_requests(ha->host);
2173         set_bit(MBX_UPDATE_FLASH_ACTIVE, &ha->mbx_cmd_flags);
2174
2175         /* Go with write. */
2176         rval = qla24xx_write_flash_data(ha, (uint32_t *)buf, offset >> 2,
2177             length >> 2);
2178
2179         /* Resume HBA -- RISC reset needed. */
2180         clear_bit(MBX_UPDATE_FLASH_ACTIVE, &ha->mbx_cmd_flags);
2181         set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2182         qla2xxx_wake_dpc(ha);
2183         qla2x00_wait_for_hba_online(ha);
2184         scsi_unblock_requests(ha->host);
2185
2186         return rval;
2187 }
2188
2189 uint8_t *
2190 qla25xx_read_optrom_data(struct scsi_qla_host *ha, uint8_t *buf,
2191     uint32_t offset, uint32_t length)
2192 {
2193         int rval;
2194         dma_addr_t optrom_dma;
2195         void *optrom;
2196         uint8_t *pbuf;
2197         uint32_t faddr, left, burst;
2198
2199         if (offset & 0xfff)
2200                 goto slow_read;
2201         if (length < OPTROM_BURST_SIZE)
2202                 goto slow_read;
2203
2204         optrom = dma_alloc_coherent(&ha->pdev->dev, OPTROM_BURST_SIZE,
2205             &optrom_dma, GFP_KERNEL);
2206         if (!optrom) {
2207                 qla_printk(KERN_DEBUG, ha,
2208                     "Unable to allocate memory for optrom burst read "
2209                     "(%x KB).\n", OPTROM_BURST_SIZE / 1024);
2210
2211                 goto slow_read;
2212         }
2213
2214         pbuf = buf;
2215         faddr = offset >> 2;
2216         left = length >> 2;
2217         burst = OPTROM_BURST_DWORDS;
2218         while (left != 0) {
2219                 if (burst > left)
2220                         burst = left;
2221
2222                 rval = qla2x00_dump_ram(ha, optrom_dma,
2223                     flash_data_to_access_addr(faddr), burst);
2224                 if (rval) {
2225                         qla_printk(KERN_WARNING, ha,
2226                             "Unable to burst-read optrom segment "
2227                             "(%x/%x/%llx).\n", rval,
2228                             flash_data_to_access_addr(faddr),
2229                             (unsigned long long)optrom_dma);
2230                         qla_printk(KERN_WARNING, ha,
2231                             "Reverting to slow-read.\n");
2232
2233                         dma_free_coherent(&ha->pdev->dev, OPTROM_BURST_SIZE,
2234                             optrom, optrom_dma);
2235                         goto slow_read;
2236                 }
2237
2238                 memcpy(pbuf, optrom, burst * 4);
2239
2240                 left -= burst;
2241                 faddr += burst;
2242                 pbuf += burst * 4;
2243         }
2244
2245         dma_free_coherent(&ha->pdev->dev, OPTROM_BURST_SIZE, optrom,
2246             optrom_dma);
2247
2248         return buf;
2249
2250 slow_read:
2251     return qla24xx_read_optrom_data(ha, buf, offset, length);
2252 }
2253
2254 /**
2255  * qla2x00_get_fcode_version() - Determine an FCODE image's version.
2256  * @ha: HA context
2257  * @pcids: Pointer to the FCODE PCI data structure
2258  *
2259  * The process of retrieving the FCODE version information is at best
2260  * described as interesting.
2261  *
2262  * Within the first 100h bytes of the image an ASCII string is present
2263  * which contains several pieces of information including the FCODE
2264  * version.  Unfortunately it seems the only reliable way to retrieve
2265  * the version is by scanning for another sentinel within the string,
2266  * the FCODE build date:
2267  *
2268  *      ... 2.00.02 10/17/02 ...
2269  *
2270  * Returns QLA_SUCCESS on successful retrieval of version.
2271  */
2272 static void
2273 qla2x00_get_fcode_version(scsi_qla_host_t *ha, uint32_t pcids)
2274 {
2275         int ret = QLA_FUNCTION_FAILED;
2276         uint32_t istart, iend, iter, vend;
2277         uint8_t do_next, rbyte, *vbyte;
2278
2279         memset(ha->fcode_revision, 0, sizeof(ha->fcode_revision));
2280
2281         /* Skip the PCI data structure. */
2282         istart = pcids +
2283             ((qla2x00_read_flash_byte(ha, pcids + 0x0B) << 8) |
2284                 qla2x00_read_flash_byte(ha, pcids + 0x0A));
2285         iend = istart + 0x100;
2286         do {
2287                 /* Scan for the sentinel date string...eeewww. */
2288                 do_next = 0;
2289                 iter = istart;
2290                 while ((iter < iend) && !do_next) {
2291                         iter++;
2292                         if (qla2x00_read_flash_byte(ha, iter) == '/') {
2293                                 if (qla2x00_read_flash_byte(ha, iter + 2) ==
2294                                     '/')
2295                                         do_next++;
2296                                 else if (qla2x00_read_flash_byte(ha,
2297                                     iter + 3) == '/')
2298                                         do_next++;
2299                         }
2300                 }
2301                 if (!do_next)
2302                         break;
2303
2304                 /* Backtrack to previous ' ' (space). */
2305                 do_next = 0;
2306                 while ((iter > istart) && !do_next) {
2307                         iter--;
2308                         if (qla2x00_read_flash_byte(ha, iter) == ' ')
2309                                 do_next++;
2310                 }
2311                 if (!do_next)
2312                         break;
2313
2314                 /*
2315                  * Mark end of version tag, and find previous ' ' (space) or
2316                  * string length (recent FCODE images -- major hack ahead!!!).
2317                  */
2318                 vend = iter - 1;
2319                 do_next = 0;
2320                 while ((iter > istart) && !do_next) {
2321                         iter--;
2322                         rbyte = qla2x00_read_flash_byte(ha, iter);
2323                         if (rbyte == ' ' || rbyte == 0xd || rbyte == 0x10)
2324                                 do_next++;
2325                 }
2326                 if (!do_next)
2327                         break;
2328
2329                 /* Mark beginning of version tag, and copy data. */
2330                 iter++;
2331                 if ((vend - iter) &&
2332                     ((vend - iter) < sizeof(ha->fcode_revision))) {
2333                         vbyte = ha->fcode_revision;
2334                         while (iter <= vend) {
2335                                 *vbyte++ = qla2x00_read_flash_byte(ha, iter);
2336                                 iter++;
2337                         }
2338                         ret = QLA_SUCCESS;
2339                 }
2340         } while (0);
2341
2342         if (ret != QLA_SUCCESS)
2343                 memset(ha->fcode_revision, 0, sizeof(ha->fcode_revision));
2344 }
2345
2346 int
2347 qla2x00_get_flash_version(scsi_qla_host_t *ha, void *mbuf)
2348 {
2349         int ret = QLA_SUCCESS;
2350         uint8_t code_type, last_image;
2351         uint32_t pcihdr, pcids;
2352         uint8_t *dbyte;
2353         uint16_t *dcode;
2354
2355         if (!ha->pio_address || !mbuf)
2356                 return QLA_FUNCTION_FAILED;
2357
2358         memset(ha->bios_revision, 0, sizeof(ha->bios_revision));
2359         memset(ha->efi_revision, 0, sizeof(ha->efi_revision));
2360         memset(ha->fcode_revision, 0, sizeof(ha->fcode_revision));
2361         memset(ha->fw_revision, 0, sizeof(ha->fw_revision));
2362
2363         qla2x00_flash_enable(ha);
2364
2365         /* Begin with first PCI expansion ROM header. */
2366         pcihdr = 0;
2367         last_image = 1;
2368         do {
2369                 /* Verify PCI expansion ROM header. */
2370                 if (qla2x00_read_flash_byte(ha, pcihdr) != 0x55 ||
2371                     qla2x00_read_flash_byte(ha, pcihdr + 0x01) != 0xaa) {
2372                         /* No signature */
2373                         DEBUG2(printk("scsi(%ld): No matching ROM "
2374                             "signature.\n", ha->host_no));
2375                         ret = QLA_FUNCTION_FAILED;
2376                         break;
2377                 }
2378
2379                 /* Locate PCI data structure. */
2380                 pcids = pcihdr +
2381                     ((qla2x00_read_flash_byte(ha, pcihdr + 0x19) << 8) |
2382                         qla2x00_read_flash_byte(ha, pcihdr + 0x18));
2383
2384                 /* Validate signature of PCI data structure. */
2385                 if (qla2x00_read_flash_byte(ha, pcids) != 'P' ||
2386                     qla2x00_read_flash_byte(ha, pcids + 0x1) != 'C' ||
2387                     qla2x00_read_flash_byte(ha, pcids + 0x2) != 'I' ||
2388                     qla2x00_read_flash_byte(ha, pcids + 0x3) != 'R') {
2389                         /* Incorrect header. */
2390                         DEBUG2(printk("%s(): PCI data struct not found "
2391                             "pcir_adr=%x.\n", __func__, pcids));
2392                         ret = QLA_FUNCTION_FAILED;
2393                         break;
2394                 }
2395
2396                 /* Read version */
2397                 code_type = qla2x00_read_flash_byte(ha, pcids + 0x14);
2398                 switch (code_type) {
2399                 case ROM_CODE_TYPE_BIOS:
2400                         /* Intel x86, PC-AT compatible. */
2401                         ha->bios_revision[0] =
2402                             qla2x00_read_flash_byte(ha, pcids + 0x12);
2403                         ha->bios_revision[1] =
2404                             qla2x00_read_flash_byte(ha, pcids + 0x13);
2405                         DEBUG3(printk("%s(): read BIOS %d.%d.\n", __func__,
2406                             ha->bios_revision[1], ha->bios_revision[0]));
2407                         break;
2408                 case ROM_CODE_TYPE_FCODE:
2409                         /* Open Firmware standard for PCI (FCode). */
2410                         /* Eeeewww... */
2411                         qla2x00_get_fcode_version(ha, pcids);
2412                         break;
2413                 case ROM_CODE_TYPE_EFI:
2414                         /* Extensible Firmware Interface (EFI). */
2415                         ha->efi_revision[0] =
2416                             qla2x00_read_flash_byte(ha, pcids + 0x12);
2417                         ha->efi_revision[1] =
2418                             qla2x00_read_flash_byte(ha, pcids + 0x13);
2419                         DEBUG3(printk("%s(): read EFI %d.%d.\n", __func__,
2420                             ha->efi_revision[1], ha->efi_revision[0]));
2421                         break;
2422                 default:
2423                         DEBUG2(printk("%s(): Unrecognized code type %x at "
2424                             "pcids %x.\n", __func__, code_type, pcids));
2425                         break;
2426                 }
2427
2428                 last_image = qla2x00_read_flash_byte(ha, pcids + 0x15) & BIT_7;
2429
2430                 /* Locate next PCI expansion ROM. */
2431                 pcihdr += ((qla2x00_read_flash_byte(ha, pcids + 0x11) << 8) |
2432                     qla2x00_read_flash_byte(ha, pcids + 0x10)) * 512;
2433         } while (!last_image);
2434
2435         if (IS_QLA2322(ha)) {
2436                 /* Read firmware image information. */
2437                 memset(ha->fw_revision, 0, sizeof(ha->fw_revision));
2438                 dbyte = mbuf;
2439                 memset(dbyte, 0, 8);
2440                 dcode = (uint16_t *)dbyte;
2441
2442                 qla2x00_read_flash_data(ha, dbyte, ha->flt_region_fw * 4 + 10,
2443                     8);
2444                 DEBUG3(printk("%s(%ld): dumping fw ver from flash:\n",
2445                     __func__, ha->host_no));
2446                 DEBUG3(qla2x00_dump_buffer((uint8_t *)dbyte, 8));
2447
2448                 if ((dcode[0] == 0xffff && dcode[1] == 0xffff &&
2449                     dcode[2] == 0xffff && dcode[3] == 0xffff) ||
2450                     (dcode[0] == 0 && dcode[1] == 0 && dcode[2] == 0 &&
2451                     dcode[3] == 0)) {
2452                         DEBUG2(printk("%s(): Unrecognized fw revision at "
2453                             "%x.\n", __func__, ha->flt_region_fw * 4));
2454                 } else {
2455                         /* values are in big endian */
2456                         ha->fw_revision[0] = dbyte[0] << 16 | dbyte[1];
2457                         ha->fw_revision[1] = dbyte[2] << 16 | dbyte[3];
2458                         ha->fw_revision[2] = dbyte[4] << 16 | dbyte[5];
2459                 }
2460         }
2461
2462         qla2x00_flash_disable(ha);
2463
2464         return ret;
2465 }
2466
2467 int
2468 qla24xx_get_flash_version(scsi_qla_host_t *ha, void *mbuf)
2469 {
2470         int ret = QLA_SUCCESS;
2471         uint32_t pcihdr, pcids;
2472         uint32_t *dcode;
2473         uint8_t *bcode;
2474         uint8_t code_type, last_image;
2475         int i;
2476
2477         if (!mbuf)
2478                 return QLA_FUNCTION_FAILED;
2479
2480         memset(ha->bios_revision, 0, sizeof(ha->bios_revision));
2481         memset(ha->efi_revision, 0, sizeof(ha->efi_revision));
2482         memset(ha->fcode_revision, 0, sizeof(ha->fcode_revision));
2483         memset(ha->fw_revision, 0, sizeof(ha->fw_revision));
2484
2485         dcode = mbuf;
2486
2487         /* Begin with first PCI expansion ROM header. */
2488         pcihdr = ha->flt_region_boot;
2489         last_image = 1;
2490         do {
2491                 /* Verify PCI expansion ROM header. */
2492                 qla24xx_read_flash_data(ha, dcode, pcihdr >> 2, 0x20);
2493                 bcode = mbuf + (pcihdr % 4);
2494                 if (bcode[0x0] != 0x55 || bcode[0x1] != 0xaa) {
2495                         /* No signature */
2496                         DEBUG2(printk("scsi(%ld): No matching ROM "
2497                             "signature.\n", ha->host_no));
2498                         ret = QLA_FUNCTION_FAILED;
2499                         break;
2500                 }
2501
2502                 /* Locate PCI data structure. */
2503                 pcids = pcihdr + ((bcode[0x19] << 8) | bcode[0x18]);
2504
2505                 qla24xx_read_flash_data(ha, dcode, pcids >> 2, 0x20);
2506                 bcode = mbuf + (pcihdr % 4);
2507
2508                 /* Validate signature of PCI data structure. */
2509                 if (bcode[0x0] != 'P' || bcode[0x1] != 'C' ||
2510                     bcode[0x2] != 'I' || bcode[0x3] != 'R') {
2511                         /* Incorrect header. */
2512                         DEBUG2(printk("%s(): PCI data struct not found "
2513                             "pcir_adr=%x.\n", __func__, pcids));
2514                         ret = QLA_FUNCTION_FAILED;
2515                         break;
2516                 }
2517
2518                 /* Read version */
2519                 code_type = bcode[0x14];
2520                 switch (code_type) {
2521                 case ROM_CODE_TYPE_BIOS:
2522                         /* Intel x86, PC-AT compatible. */
2523                         ha->bios_revision[0] = bcode[0x12];
2524                         ha->bios_revision[1] = bcode[0x13];
2525                         DEBUG3(printk("%s(): read BIOS %d.%d.\n", __func__,
2526                             ha->bios_revision[1], ha->bios_revision[0]));
2527                         break;
2528                 case ROM_CODE_TYPE_FCODE:
2529                         /* Open Firmware standard for PCI (FCode). */
2530                         ha->fcode_revision[0] = bcode[0x12];
2531                         ha->fcode_revision[1] = bcode[0x13];
2532                         DEBUG3(printk("%s(): read FCODE %d.%d.\n", __func__,
2533                             ha->fcode_revision[1], ha->fcode_revision[0]));
2534                         break;
2535                 case ROM_CODE_TYPE_EFI:
2536                         /* Extensible Firmware Interface (EFI). */
2537                         ha->efi_revision[0] = bcode[0x12];
2538                         ha->efi_revision[1] = bcode[0x13];
2539                         DEBUG3(printk("%s(): read EFI %d.%d.\n", __func__,
2540                             ha->efi_revision[1], ha->efi_revision[0]));
2541                         break;
2542                 default:
2543                         DEBUG2(printk("%s(): Unrecognized code type %x at "
2544                             "pcids %x.\n", __func__, code_type, pcids));
2545                         break;
2546                 }
2547
2548                 last_image = bcode[0x15] & BIT_7;
2549
2550                 /* Locate next PCI expansion ROM. */
2551                 pcihdr += ((bcode[0x11] << 8) | bcode[0x10]) * 512;
2552         } while (!last_image);
2553
2554         /* Read firmware image information. */
2555         memset(ha->fw_revision, 0, sizeof(ha->fw_revision));
2556         dcode = mbuf;
2557
2558         qla24xx_read_flash_data(ha, dcode, ha->flt_region_fw + 4, 4);
2559         for (i = 0; i < 4; i++)
2560                 dcode[i] = be32_to_cpu(dcode[i]);
2561
2562         if ((dcode[0] == 0xffffffff && dcode[1] == 0xffffffff &&
2563             dcode[2] == 0xffffffff && dcode[3] == 0xffffffff) ||
2564             (dcode[0] == 0 && dcode[1] == 0 && dcode[2] == 0 &&
2565             dcode[3] == 0)) {
2566                 DEBUG2(printk("%s(): Unrecognized fw version at %x.\n",
2567                     __func__, ha->flt_region_fw));
2568         } else {
2569                 ha->fw_revision[0] = dcode[0];
2570                 ha->fw_revision[1] = dcode[1];
2571                 ha->fw_revision[2] = dcode[2];
2572                 ha->fw_revision[3] = dcode[3];
2573         }
2574
2575         return ret;
2576 }
2577
2578 static int
2579 qla2xxx_is_vpd_valid(uint8_t *pos, uint8_t *end)
2580 {
2581         if (pos >= end || *pos != 0x82)
2582                 return 0;
2583
2584         pos += 3 + pos[1];
2585         if (pos >= end || *pos != 0x90)
2586                 return 0;
2587
2588         pos += 3 + pos[1];
2589         if (pos >= end || *pos != 0x78)
2590                 return 0;
2591
2592         return 1;
2593 }
2594
2595 int
2596 qla2xxx_get_vpd_field(scsi_qla_host_t *ha, char *key, char *str, size_t size)
2597 {
2598         uint8_t *pos = ha->vpd;
2599         uint8_t *end = pos + ha->vpd_size;
2600         int len = 0;
2601
2602         if (!IS_FWI2_CAPABLE(ha) || !qla2xxx_is_vpd_valid(pos, end))
2603                 return 0;
2604
2605         while (pos < end && *pos != 0x78) {
2606                 len = (*pos == 0x82) ? pos[1] : pos[2];
2607
2608                 if (!strncmp(pos, key, strlen(key)))
2609                         break;
2610
2611                 if (*pos != 0x90 && *pos != 0x91)
2612                         pos += len;
2613
2614                 pos += 3;
2615         }
2616
2617         if (pos < end - len && *pos != 0x78)
2618                 return snprintf(str, size, "%.*s", len, pos + 3);
2619
2620         return 0;
2621 }
2622
2623 static int
2624 qla2xxx_hw_event_store(scsi_qla_host_t *ha, uint32_t *fdata)
2625 {
2626         uint32_t d[2], faddr;
2627
2628         /* Locate first empty entry. */
2629         for (;;) {
2630                 if (ha->hw_event_ptr >=
2631                     ha->flt_region_hw_event + FA_HW_EVENT_SIZE) {
2632                         DEBUG2(qla_printk(KERN_WARNING, ha,
2633                             "HW event -- Log Full!\n"));
2634                         return QLA_MEMORY_ALLOC_FAILED;
2635                 }
2636
2637                 qla24xx_read_flash_data(ha, d, ha->hw_event_ptr, 2);
2638                 faddr = flash_data_to_access_addr(ha->hw_event_ptr);
2639                 ha->hw_event_ptr += FA_HW_EVENT_ENTRY_SIZE;
2640                 if (d[0] == __constant_cpu_to_le32(0xffffffff) &&
2641                     d[1] == __constant_cpu_to_le32(0xffffffff)) {
2642                         qla24xx_unprotect_flash(ha);
2643
2644                         qla24xx_write_flash_dword(ha, faddr++,
2645                             cpu_to_le32(jiffies));
2646                         qla24xx_write_flash_dword(ha, faddr++, 0);
2647                         qla24xx_write_flash_dword(ha, faddr++, *fdata++);
2648                         qla24xx_write_flash_dword(ha, faddr++, *fdata);
2649
2650                         qla24xx_protect_flash(ha);
2651                         break;
2652                 }
2653         }
2654         return QLA_SUCCESS;
2655 }
2656
2657 int
2658 qla2xxx_hw_event_log(scsi_qla_host_t *ha, uint16_t code, uint16_t d1,
2659     uint16_t d2, uint16_t d3)
2660 {
2661 #define QMARK(a, b, c, d) \
2662     cpu_to_le32(LSB(a) << 24 | LSB(b) << 16 | LSB(c) << 8 | LSB(d))
2663
2664         int rval;
2665         uint32_t marker[2], fdata[4];
2666
2667         if (ha->flt_region_hw_event == 0)
2668                 return QLA_FUNCTION_FAILED;
2669
2670         DEBUG2(qla_printk(KERN_WARNING, ha,
2671             "HW event -- code=%x, d1=%x, d2=%x, d3=%x.\n", code, d1, d2, d3));
2672
2673         /* If marker not already found, locate or write.  */
2674         if (!ha->flags.hw_event_marker_found) {
2675                 /* Create marker. */
2676                 marker[0] = QMARK('L', ha->fw_major_version,
2677                     ha->fw_minor_version, ha->fw_subminor_version);
2678                 marker[1] = QMARK(QLA_DRIVER_MAJOR_VER, QLA_DRIVER_MINOR_VER,
2679                     QLA_DRIVER_PATCH_VER, QLA_DRIVER_BETA_VER);
2680
2681                 /* Locate marker. */
2682                 ha->hw_event_ptr = ha->flt_region_hw_event;
2683                 for (;;) {
2684                         qla24xx_read_flash_data(ha, fdata, ha->hw_event_ptr,
2685                             4);
2686                         if (fdata[0] == __constant_cpu_to_le32(0xffffffff) &&
2687                             fdata[1] == __constant_cpu_to_le32(0xffffffff))
2688                                 break;
2689                         ha->hw_event_ptr += FA_HW_EVENT_ENTRY_SIZE;
2690                         if (ha->hw_event_ptr >=
2691                             ha->flt_region_hw_event + FA_HW_EVENT_SIZE) {
2692                                 DEBUG2(qla_printk(KERN_WARNING, ha,
2693                                     "HW event -- Log Full!\n"));
2694                                 return QLA_MEMORY_ALLOC_FAILED;
2695                         }
2696                         if (fdata[2] == marker[0] && fdata[3] == marker[1]) {
2697                                 ha->flags.hw_event_marker_found = 1;
2698                                 break;
2699                         }
2700                 }
2701                 /* No marker, write it. */
2702                 if (!ha->flags.hw_event_marker_found) {
2703                         rval = qla2xxx_hw_event_store(ha, marker);
2704                         if (rval != QLA_SUCCESS) {
2705                                 DEBUG2(qla_printk(KERN_WARNING, ha,
2706                                     "HW event -- Failed marker write=%x.!\n",
2707                                     rval));
2708                                 return rval;
2709                         }
2710                         ha->flags.hw_event_marker_found = 1;
2711                 }
2712         }
2713
2714         /* Store error.  */
2715         fdata[0] = cpu_to_le32(code << 16 | d1);
2716         fdata[1] = cpu_to_le32(d2 << 16 | d3);
2717         rval = qla2xxx_hw_event_store(ha, fdata);
2718         if (rval != QLA_SUCCESS) {
2719                 DEBUG2(qla_printk(KERN_WARNING, ha,
2720                     "HW event -- Failed error write=%x.!\n",
2721                     rval));
2722         }
2723
2724         return rval;
2725 }