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 /*
  14  * NVRAM support routines
  15  */
  16
  17 /**
  18  * qla2x00_lock_nvram_access() -
  19  * @ha: HA context
  20  */
  21 static void
  22 qla2x00_lock_nvram_access(struct qla_hw_data *ha)
  23 {
  24         uint16_t data;
  25         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
  26
  27         if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && !IS_QLA2300(ha)) {
  28                 data = RD_REG_WORD(&reg->nvram);
  29                 while (data & NVR_BUSY) {
  30                         udelay(100);
  31                         data = RD_REG_WORD(&reg->nvram);
  32                 }
  33
  34                 /* Lock resource */
  35                 WRT_REG_WORD(&reg->u.isp2300.host_semaphore, 0x1);
  36                 RD_REG_WORD(&reg->u.isp2300.host_semaphore);
  37                 udelay(5);
  38                 data = RD_REG_WORD(&reg->u.isp2300.host_semaphore);
  39                 while ((data & BIT_0) == 0) {
  40                         /* Lock failed */
  41                         udelay(100);
  42                         WRT_REG_WORD(&reg->u.isp2300.host_semaphore, 0x1);
  43                         RD_REG_WORD(&reg->u.isp2300.host_semaphore);
  44                         udelay(5);
  45                         data = RD_REG_WORD(&reg->u.isp2300.host_semaphore);
  46                 }
  47         }
  48 }
  49
  50 /**
  51  * qla2x00_unlock_nvram_access() -
  52  * @ha: HA context
  53  */
  54 static void
  55 qla2x00_unlock_nvram_access(struct qla_hw_data *ha)
  56 {
  57         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
  58
  59         if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && !IS_QLA2300(ha)) {
  60                 WRT_REG_WORD(&reg->u.isp2300.host_semaphore, 0);
  61                 RD_REG_WORD(&reg->u.isp2300.host_semaphore);
  62         }
  63 }
  64
  65 /**
  66  * qla2x00_nv_write() - Prepare for NVRAM read/write operation.
  67  * @ha: HA context
  68  * @data: Serial interface selector
  69  */
  70 static void
  71 qla2x00_nv_write(struct qla_hw_data *ha, uint16_t data)
  72 {
  73         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
  74
  75         WRT_REG_WORD(&reg->nvram, data | NVR_SELECT | NVR_WRT_ENABLE);
  76         RD_REG_WORD(&reg->nvram);               /* PCI Posting. */
  77         NVRAM_DELAY();
  78         WRT_REG_WORD(&reg->nvram, data | NVR_SELECT | NVR_CLOCK |
  79             NVR_WRT_ENABLE);
  80         RD_REG_WORD(&reg->nvram);               /* PCI Posting. */
  81         NVRAM_DELAY();
  82         WRT_REG_WORD(&reg->nvram, data | NVR_SELECT | NVR_WRT_ENABLE);
  83         RD_REG_WORD(&reg->nvram);               /* PCI Posting. */
  84         NVRAM_DELAY();
  85 }
  86
  87 /**
  88  * qla2x00_nvram_request() - Sends read command to NVRAM and gets data from
  89  *      NVRAM.
  90  * @ha: HA context
  91  * @nv_cmd: NVRAM command
  92  *
  93  * Bit definitions for NVRAM command:
  94  *
  95  *      Bit 26     = start bit
  96  *      Bit 25, 24 = opcode
  97  *      Bit 23-16  = address
  98  *      Bit 15-0   = write data
  99  *
 100  * Returns the word read from nvram @addr.
 101  */
 102 static uint16_t
 103 qla2x00_nvram_request(struct qla_hw_data *ha, uint32_t nv_cmd)
 104 {
 105         uint8_t         cnt;
 106         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 107         uint16_t        data = 0;
 108         uint16_t        reg_data;
 109
 110         /* Send command to NVRAM. */
 111         nv_cmd <<= 5;
 112         for (cnt = 0; cnt < 11; cnt++) {
 113                 if (nv_cmd & BIT_31)
 114                         qla2x00_nv_write(ha, NVR_DATA_OUT);
 115                 else
 116                         qla2x00_nv_write(ha, 0);
 117                 nv_cmd <<= 1;
 118         }
 119
 120         /* Read data from NVRAM. */
 121         for (cnt = 0; cnt < 16; cnt++) {
 122                 WRT_REG_WORD(&reg->nvram, NVR_SELECT | NVR_CLOCK);
 123                 RD_REG_WORD(&reg->nvram);       /* PCI Posting. */
 124                 NVRAM_DELAY();
 125                 data <<= 1;
 126                 reg_data = RD_REG_WORD(&reg->nvram);
 127                 if (reg_data & NVR_DATA_IN)
 128                         data |= BIT_0;
 129                 WRT_REG_WORD(&reg->nvram, NVR_SELECT);
 130                 RD_REG_WORD(&reg->nvram);       /* PCI Posting. */
 131                 NVRAM_DELAY();
 132         }
 133
 134         /* Deselect chip. */
 135         WRT_REG_WORD(&reg->nvram, NVR_DESELECT);
 136         RD_REG_WORD(&reg->nvram);               /* PCI Posting. */
 137         NVRAM_DELAY();
 138
 139         return data;
 140 }
 141
 142
 143 /**
 144  * qla2x00_get_nvram_word() - Calculates word position in NVRAM and calls the
 145  *      request routine to get the word from NVRAM.
 146  * @ha: HA context
 147  * @addr: Address in NVRAM to read
 148  *
 149  * Returns the word read from nvram @addr.
 150  */
 151 static uint16_t
 152 qla2x00_get_nvram_word(struct qla_hw_data *ha, uint32_t addr)
 153 {
 154         uint16_t        data;
 155         uint32_t        nv_cmd;
 156
 157         nv_cmd = addr << 16;
 158         nv_cmd |= NV_READ_OP;
 159         data = qla2x00_nvram_request(ha, nv_cmd);
 160
 161         return (data);
 162 }
 163
 164 /**
 165  * qla2x00_nv_deselect() - Deselect NVRAM operations.
 166  * @ha: HA context
 167  */
 168 static void
 169 qla2x00_nv_deselect(struct qla_hw_data *ha)
 170 {
 171         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 172
 173         WRT_REG_WORD(&reg->nvram, NVR_DESELECT);
 174         RD_REG_WORD(&reg->nvram);               /* PCI Posting. */
 175         NVRAM_DELAY();
 176 }
 177
 178 /**
 179  * qla2x00_write_nvram_word() - Write NVRAM data.
 180  * @ha: HA context
 181  * @addr: Address in NVRAM to write
 182  * @data: word to program
 183  */
 184 static void
 185 qla2x00_write_nvram_word(struct qla_hw_data *ha, uint32_t addr, uint16_t data)
 186 {
 187         int count;
 188         uint16_t word;
 189         uint32_t nv_cmd, wait_cnt;
 190         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 191
 192         qla2x00_nv_write(ha, NVR_DATA_OUT);
 193         qla2x00_nv_write(ha, 0);
 194         qla2x00_nv_write(ha, 0);
 195
 196         for (word = 0; word < 8; word++)
 197                 qla2x00_nv_write(ha, NVR_DATA_OUT);
 198
 199         qla2x00_nv_deselect(ha);
 200
 201         /* Write data */
 202         nv_cmd = (addr << 16) | NV_WRITE_OP;
 203         nv_cmd |= data;
 204         nv_cmd <<= 5;
 205         for (count = 0; count < 27; count++) {
 206                 if (nv_cmd & BIT_31)
 207                         qla2x00_nv_write(ha, NVR_DATA_OUT);
 208                 else
 209                         qla2x00_nv_write(ha, 0);
 210
 211                 nv_cmd <<= 1;
 212         }
 213
 214         qla2x00_nv_deselect(ha);
 215
 216         /* Wait for NVRAM to become ready */
 217         WRT_REG_WORD(&reg->nvram, NVR_SELECT);
 218         RD_REG_WORD(&reg->nvram);               /* PCI Posting. */
 219         wait_cnt = NVR_WAIT_CNT;
 220         do {
 221                 if (!--wait_cnt) {
 222                         DEBUG9_10(printk("%s(%ld): NVRAM didn't go ready...\n",
 223                             __func__, vha->host_no));
 224                         break;
 225                 }
 226                 NVRAM_DELAY();
 227                 word = RD_REG_WORD(&reg->nvram);
 228         } while ((word & NVR_DATA_IN) == 0);
 229
 230         qla2x00_nv_deselect(ha);
 231
 232         /* Disable writes */
 233         qla2x00_nv_write(ha, NVR_DATA_OUT);
 234         for (count = 0; count < 10; count++)
 235                 qla2x00_nv_write(ha, 0);
 236
 237         qla2x00_nv_deselect(ha);
 238 }
 239
 240 static int
 241 qla2x00_write_nvram_word_tmo(struct qla_hw_data *ha, uint32_t addr,
 242         uint16_t data, uint32_t tmo)
 243 {
 244         int ret, count;
 245         uint16_t word;
 246         uint32_t nv_cmd;
 247         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 248
 249         ret = QLA_SUCCESS;
 250
 251         qla2x00_nv_write(ha, NVR_DATA_OUT);
 252         qla2x00_nv_write(ha, 0);
 253         qla2x00_nv_write(ha, 0);
 254
 255         for (word = 0; word < 8; word++)
 256                 qla2x00_nv_write(ha, NVR_DATA_OUT);
 257
 258         qla2x00_nv_deselect(ha);
 259
 260         /* Write data */
 261         nv_cmd = (addr << 16) | NV_WRITE_OP;
 262         nv_cmd |= data;
 263         nv_cmd <<= 5;
 264         for (count = 0; count < 27; count++) {
 265                 if (nv_cmd & BIT_31)
 266                         qla2x00_nv_write(ha, NVR_DATA_OUT);
 267                 else
 268                         qla2x00_nv_write(ha, 0);
 269
 270                 nv_cmd <<= 1;
 271         }
 272
 273         qla2x00_nv_deselect(ha);
 274
 275         /* Wait for NVRAM to become ready */
 276         WRT_REG_WORD(&reg->nvram, NVR_SELECT);
 277         RD_REG_WORD(&reg->nvram);               /* PCI Posting. */
 278         do {
 279                 NVRAM_DELAY();
 280                 word = RD_REG_WORD(&reg->nvram);
 281                 if (!--tmo) {
 282                         ret = QLA_FUNCTION_FAILED;
 283                         break;
 284                 }
 285         } while ((word & NVR_DATA_IN) == 0);
 286
 287         qla2x00_nv_deselect(ha);
 288
 289         /* Disable writes */
 290         qla2x00_nv_write(ha, NVR_DATA_OUT);
 291         for (count = 0; count < 10; count++)
 292                 qla2x00_nv_write(ha, 0);
 293
 294         qla2x00_nv_deselect(ha);
 295
 296         return ret;
 297 }
 298
 299 /**
 300  * qla2x00_clear_nvram_protection() -
 301  * @ha: HA context
 302  */
 303 static int
 304 qla2x00_clear_nvram_protection(struct qla_hw_data *ha)
 305 {
 306         int ret, stat;
 307         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 308         uint32_t word, wait_cnt;
 309         uint16_t wprot, wprot_old;
 310
 311         /* Clear NVRAM write protection. */
 312         ret = QLA_FUNCTION_FAILED;
 313
 314         wprot_old = cpu_to_le16(qla2x00_get_nvram_word(ha, ha->nvram_base));
 315         stat = qla2x00_write_nvram_word_tmo(ha, ha->nvram_base,
 316             __constant_cpu_to_le16(0x1234), 100000);
 317         wprot = cpu_to_le16(qla2x00_get_nvram_word(ha, ha->nvram_base));
 318         if (stat != QLA_SUCCESS || wprot != 0x1234) {
 319                 /* Write enable. */
 320                 qla2x00_nv_write(ha, NVR_DATA_OUT);
 321                 qla2x00_nv_write(ha, 0);
 322                 qla2x00_nv_write(ha, 0);
 323                 for (word = 0; word < 8; word++)
 324                         qla2x00_nv_write(ha, NVR_DATA_OUT);
 325
 326                 qla2x00_nv_deselect(ha);
 327
 328                 /* Enable protection register. */
 329                 qla2x00_nv_write(ha, NVR_PR_ENABLE | NVR_DATA_OUT);
 330                 qla2x00_nv_write(ha, NVR_PR_ENABLE);
 331                 qla2x00_nv_write(ha, NVR_PR_ENABLE);
 332                 for (word = 0; word < 8; word++)
 333                         qla2x00_nv_write(ha, NVR_DATA_OUT | NVR_PR_ENABLE);
 334
 335                 qla2x00_nv_deselect(ha);
 336
 337                 /* Clear protection register (ffff is cleared). */
 338                 qla2x00_nv_write(ha, NVR_PR_ENABLE | NVR_DATA_OUT);
 339                 qla2x00_nv_write(ha, NVR_PR_ENABLE | NVR_DATA_OUT);
 340                 qla2x00_nv_write(ha, NVR_PR_ENABLE | NVR_DATA_OUT);
 341                 for (word = 0; word < 8; word++)
 342                         qla2x00_nv_write(ha, NVR_DATA_OUT | NVR_PR_ENABLE);
 343
 344                 qla2x00_nv_deselect(ha);
 345
 346                 /* Wait for NVRAM to become ready. */
 347                 WRT_REG_WORD(&reg->nvram, NVR_SELECT);
 348                 RD_REG_WORD(&reg->nvram);       /* PCI Posting. */
 349                 wait_cnt = NVR_WAIT_CNT;
 350                 do {
 351                         if (!--wait_cnt) {
 352                                 DEBUG9_10(qla_printk(
 353                                     "NVRAM didn't go ready...\n"));
 354                                 break;
 355                         }
 356                         NVRAM_DELAY();
 357                         word = RD_REG_WORD(&reg->nvram);
 358                 } while ((word & NVR_DATA_IN) == 0);
 359
 360                 if (wait_cnt)
 361                         ret = QLA_SUCCESS;
 362         } else
 363                 qla2x00_write_nvram_word(ha, ha->nvram_base, wprot_old);
 364
 365         return ret;
 366 }
 367
 368 static void
 369 qla2x00_set_nvram_protection(struct qla_hw_data *ha, int stat)
 370 {
 371         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 372         uint32_t word, wait_cnt;
 373
 374         if (stat != QLA_SUCCESS)
 375                 return;
 376
 377         /* Set NVRAM write protection. */
 378         /* Write enable. */
 379         qla2x00_nv_write(ha, NVR_DATA_OUT);
 380         qla2x00_nv_write(ha, 0);
 381         qla2x00_nv_write(ha, 0);
 382         for (word = 0; word < 8; word++)
 383                 qla2x00_nv_write(ha, NVR_DATA_OUT);
 384
 385         qla2x00_nv_deselect(ha);
 386
 387         /* Enable protection register. */
 388         qla2x00_nv_write(ha, NVR_PR_ENABLE | NVR_DATA_OUT);
 389         qla2x00_nv_write(ha, NVR_PR_ENABLE);
 390         qla2x00_nv_write(ha, NVR_PR_ENABLE);
 391         for (word = 0; word < 8; word++)
 392                 qla2x00_nv_write(ha, NVR_DATA_OUT | NVR_PR_ENABLE);
 393
 394         qla2x00_nv_deselect(ha);
 395
 396         /* Enable protection register. */
 397         qla2x00_nv_write(ha, NVR_PR_ENABLE | NVR_DATA_OUT);
 398         qla2x00_nv_write(ha, NVR_PR_ENABLE);
 399         qla2x00_nv_write(ha, NVR_PR_ENABLE | NVR_DATA_OUT);
 400         for (word = 0; word < 8; word++)
 401                 qla2x00_nv_write(ha, NVR_PR_ENABLE);
 402
 403         qla2x00_nv_deselect(ha);
 404
 405         /* Wait for NVRAM to become ready. */
 406         WRT_REG_WORD(&reg->nvram, NVR_SELECT);
 407         RD_REG_WORD(&reg->nvram);               /* PCI Posting. */
 408         wait_cnt = NVR_WAIT_CNT;
 409         do {
 410                 if (!--wait_cnt) {
 411                         DEBUG9_10(qla_printk("NVRAM didn't go ready...\n"));
 412                         break;
 413                 }
 414                 NVRAM_DELAY();
 415                 word = RD_REG_WORD(&reg->nvram);
 416         } while ((word & NVR_DATA_IN) == 0);
 417 }
 418
 419
 420 /*****************************************************************************/
 421 /* Flash Manipulation Routines                                               */
 422 /*****************************************************************************/
 423
 424 #define OPTROM_BURST_SIZE       0x1000
 425 #define OPTROM_BURST_DWORDS     (OPTROM_BURST_SIZE / 4)
 426
 427 static inline uint32_t
 428 flash_conf_addr(struct qla_hw_data *ha, uint32_t faddr)
 429 {
 430         return ha->flash_conf_off | faddr;
 431 }
 432
 433 static inline uint32_t
 434 flash_data_addr(struct qla_hw_data *ha, uint32_t faddr)
 435 {
 436         return ha->flash_data_off | faddr;
 437 }
 438
 439 static inline uint32_t
 440 nvram_conf_addr(struct qla_hw_data *ha, uint32_t naddr)
 441 {
 442         return ha->nvram_conf_off | naddr;
 443 }
 444
 445 static inline uint32_t
 446 nvram_data_addr(struct qla_hw_data *ha, uint32_t naddr)
 447 {
 448         return ha->nvram_data_off | naddr;
 449 }
 450
 451 static uint32_t
 452 qla24xx_read_flash_dword(struct qla_hw_data *ha, uint32_t addr)
 453 {
 454         int rval;
 455         uint32_t cnt, data;
 456         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
 457
 458         WRT_REG_DWORD(&reg->flash_addr, addr & ~FARX_DATA_FLAG);
 459         /* Wait for READ cycle to complete. */
 460         rval = QLA_SUCCESS;
 461         for (cnt = 3000;
 462             (RD_REG_DWORD(&reg->flash_addr) & FARX_DATA_FLAG) == 0 &&
 463             rval == QLA_SUCCESS; cnt--) {
 464                 if (cnt)
 465                         udelay(10);
 466                 else
 467                         rval = QLA_FUNCTION_TIMEOUT;
 468                 cond_resched();
 469         }
 470
 471         /* TODO: What happens if we time out? */
 472         data = 0xDEADDEAD;
 473         if (rval == QLA_SUCCESS)
 474                 data = RD_REG_DWORD(&reg->flash_data);
 475
 476         return data;
 477 }
 478
 479 uint32_t *
 480 qla24xx_read_flash_data(scsi_qla_host_t *vha, uint32_t *dwptr, uint32_t faddr,
 481     uint32_t dwords)
 482 {
 483         uint32_t i;
 484         struct qla_hw_data *ha = vha->hw;
 485
 486         /* Dword reads to flash. */
 487         for (i = 0; i < dwords; i++, faddr++)
 488                 dwptr[i] = cpu_to_le32(qla24xx_read_flash_dword(ha,
 489                     flash_data_addr(ha, faddr)));
 490
 491         return dwptr;
 492 }
 493
 494 static int
 495 qla24xx_write_flash_dword(struct qla_hw_data *ha, uint32_t addr, uint32_t data)
 496 {
 497         int rval;
 498         uint32_t cnt;
 499         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
 500
 501         WRT_REG_DWORD(&reg->flash_data, data);
 502         RD_REG_DWORD(&reg->flash_data);         /* PCI Posting. */
 503         WRT_REG_DWORD(&reg->flash_addr, addr | FARX_DATA_FLAG);
 504         /* Wait for Write cycle to complete. */
 505         rval = QLA_SUCCESS;
 506         for (cnt = 500000; (RD_REG_DWORD(&reg->flash_addr) & FARX_DATA_FLAG) &&
 507             rval == QLA_SUCCESS; cnt--) {
 508                 if (cnt)
 509                         udelay(10);
 510                 else
 511                         rval = QLA_FUNCTION_TIMEOUT;
 512                 cond_resched();
 513         }
 514         return rval;
 515 }
 516
 517 static void
 518 qla24xx_get_flash_manufacturer(struct qla_hw_data *ha, uint8_t *man_id,
 519     uint8_t *flash_id)
 520 {
 521         uint32_t ids;
 522
 523         ids = qla24xx_read_flash_dword(ha, flash_conf_addr(ha, 0x03ab));
 524         *man_id = LSB(ids);
 525         *flash_id = MSB(ids);
 526
 527         /* Check if man_id and flash_id are valid. */
 528         if (ids != 0xDEADDEAD && (*man_id == 0 || *flash_id == 0)) {
 529                 /* Read information using 0x9f opcode
 530                  * Device ID, Mfg ID would be read in the format:
 531                  *   <Ext Dev Info><Device ID Part2><Device ID Part 1><Mfg ID>
 532                  * Example: ATMEL 0x00 01 45 1F
 533                  * Extract MFG and Dev ID from last two bytes.
 534                  */
 535                 ids = qla24xx_read_flash_dword(ha, flash_conf_addr(ha, 0x009f));
 536                 *man_id = LSB(ids);
 537                 *flash_id = MSB(ids);
 538         }
 539 }
 540
 541 static int
 542 qla2xxx_find_flt_start(scsi_qla_host_t *vha, uint32_t *start)
 543 {
 544         const char *loc, *locations[] = { "DEF", "PCI" };
 545         uint32_t pcihdr, pcids;
 546         uint32_t *dcode;
 547         uint8_t *buf, *bcode, last_image;
 548         uint16_t cnt, chksum, *wptr;
 549         struct qla_flt_location *fltl;
 550         struct qla_hw_data *ha = vha->hw;
 551         struct req_que *req = ha->req_q_map[0];
 552
 553         /*
 554          * FLT-location structure resides after the last PCI region.
 555          */
 556
 557         /* Begin with sane defaults. */
 558         loc = locations[0];
 559         *start = 0;
 560         if (IS_QLA24XX_TYPE(ha))
 561                 *start = FA_FLASH_LAYOUT_ADDR_24;
 562         else if (IS_QLA25XX(ha))
 563                 *start = FA_FLASH_LAYOUT_ADDR;
 564         else if (IS_QLA81XX(ha))
 565                 *start = FA_FLASH_LAYOUT_ADDR_81;
 566         /* Begin with first PCI expansion ROM header. */
 567         buf = (uint8_t *)req->ring;
 568         dcode = (uint32_t *)req->ring;
 569         pcihdr = 0;
 570         last_image = 1;
 571         do {
 572                 /* Verify PCI expansion ROM header. */
 573                 qla24xx_read_flash_data(vha, dcode, pcihdr >> 2, 0x20);
 574                 bcode = buf + (pcihdr % 4);
 575                 if (bcode[0x0] != 0x55 || bcode[0x1] != 0xaa)
 576                         goto end;
 577
 578                 /* Locate PCI data structure. */
 579                 pcids = pcihdr + ((bcode[0x19] << 8) | bcode[0x18]);
 580                 qla24xx_read_flash_data(vha, dcode, pcids >> 2, 0x20);
 581                 bcode = buf + (pcihdr % 4);
 582
 583                 /* Validate signature of PCI data structure. */
 584                 if (bcode[0x0] != 'P' || bcode[0x1] != 'C' ||
 585                     bcode[0x2] != 'I' || bcode[0x3] != 'R')
 586                         goto end;
 587
 588                 last_image = bcode[0x15] & BIT_7;
 589
 590                 /* Locate next PCI expansion ROM. */
 591                 pcihdr += ((bcode[0x11] << 8) | bcode[0x10]) * 512;
 592         } while (!last_image);
 593
 594         /* Now verify FLT-location structure. */
 595         fltl = (struct qla_flt_location *)req->ring;
 596         qla24xx_read_flash_data(vha, dcode, pcihdr >> 2,
 597             sizeof(struct qla_flt_location) >> 2);
 598         if (fltl->sig[0] != 'Q' || fltl->sig[1] != 'F' ||
 599             fltl->sig[2] != 'L' || fltl->sig[3] != 'T')
 600                 goto end;
 601
 602         wptr = (uint16_t *)req->ring;
 603         cnt = sizeof(struct qla_flt_location) >> 1;
 604         for (chksum = 0; cnt; cnt--)
 605                 chksum += le16_to_cpu(*wptr++);
 606         if (chksum) {
 607                 qla_printk(KERN_ERR, ha,
 608                     "Inconsistent FLTL detected: checksum=0x%x.\n", chksum);
 609                 qla2x00_dump_buffer(buf, sizeof(struct qla_flt_location));
 610                 return QLA_FUNCTION_FAILED;
 611         }
 612
 613         /* Good data.  Use specified location. */
 614         loc = locations[1];
 615         *start = le16_to_cpu(fltl->start_hi) << 16 |
 616             le16_to_cpu(fltl->start_lo);
 617 end:
 618         DEBUG2(qla_printk(KERN_DEBUG, ha, "FLTL[%s] = 0x%x.\n", loc, *start));
 619         return QLA_SUCCESS;
 620 }
 621
 622 static void
 623 qla2xxx_get_flt_info(scsi_qla_host_t *vha, uint32_t flt_addr)
 624 {
 625         const char *loc, *locations[] = { "DEF", "FLT" };
 626         const uint32_t def_fw[] =
 627                 { FA_RISC_CODE_ADDR, FA_RISC_CODE_ADDR, FA_RISC_CODE_ADDR_81 };
 628         const uint32_t def_boot[] =
 629                 { FA_BOOT_CODE_ADDR, FA_BOOT_CODE_ADDR, FA_BOOT_CODE_ADDR_81 };
 630         const uint32_t def_vpd_nvram[] =
 631                 { FA_VPD_NVRAM_ADDR, FA_VPD_NVRAM_ADDR, FA_VPD_NVRAM_ADDR_81 };
 632         const uint32_t def_fdt[] =
 633                 { FA_FLASH_DESCR_ADDR_24, FA_FLASH_DESCR_ADDR,
 634                         FA_FLASH_DESCR_ADDR_81 };
 635         const uint32_t def_npiv_conf0[] =
 636                 { FA_NPIV_CONF0_ADDR_24, FA_NPIV_CONF0_ADDR,
 637                         FA_NPIV_CONF0_ADDR_81 };
 638         const uint32_t def_npiv_conf1[] =
 639                 { FA_NPIV_CONF1_ADDR_24, FA_NPIV_CONF1_ADDR,
 640                         FA_NPIV_CONF1_ADDR_81 };
 641         uint32_t def;
 642         uint16_t *wptr;
 643         uint16_t cnt, chksum;
 644         uint32_t start;
 645         struct qla_flt_header *flt;
 646         struct qla_flt_region *region;
 647         struct qla_hw_data *ha = vha->hw;
 648         struct req_que *req = ha->req_q_map[0];
 649
 650         ha->flt_region_flt = flt_addr;
 651         wptr = (uint16_t *)req->ring;
 652         flt = (struct qla_flt_header *)req->ring;
 653         region = (struct qla_flt_region *)&flt[1];
 654         ha->isp_ops->read_optrom(vha, (uint8_t *)req->ring,
 655             flt_addr << 2, OPTROM_BURST_SIZE);
 656         if (*wptr == __constant_cpu_to_le16(0xffff))
 657                 goto no_flash_data;
 658         if (flt->version != __constant_cpu_to_le16(1)) {
 659                 DEBUG2(qla_printk(KERN_INFO, ha, "Unsupported FLT detected: "
 660                     "version=0x%x length=0x%x checksum=0x%x.\n",
 661                     le16_to_cpu(flt->version), le16_to_cpu(flt->length),
 662                     le16_to_cpu(flt->checksum)));
 663                 goto no_flash_data;
 664         }
 665
 666         cnt = (sizeof(struct qla_flt_header) + le16_to_cpu(flt->length)) >> 1;
 667         for (chksum = 0; cnt; cnt--)
 668                 chksum += le16_to_cpu(*wptr++);
 669         if (chksum) {
 670                 DEBUG2(qla_printk(KERN_INFO, ha, "Inconsistent FLT detected: "
 671                     "version=0x%x length=0x%x checksum=0x%x.\n",
 672                     le16_to_cpu(flt->version), le16_to_cpu(flt->length),
 673                     chksum));
 674                 goto no_flash_data;
 675         }
 676
 677         loc = locations[1];
 678         cnt = le16_to_cpu(flt->length) / sizeof(struct qla_flt_region);
 679         for ( ; cnt; cnt--, region++) {
 680                 /* Store addresses as DWORD offsets. */
 681                 start = le32_to_cpu(region->start) >> 2;
 682
 683                 DEBUG3(qla_printk(KERN_DEBUG, ha, "FLT[%02x]: start=0x%x "
 684                     "end=0x%x size=0x%x.\n", le32_to_cpu(region->code), start,
 685                     le32_to_cpu(region->end) >> 2, le32_to_cpu(region->size)));
 686
 687                 switch (le32_to_cpu(region->code)) {
 688                 case FLT_REG_FW:
 689                         ha->flt_region_fw = start;
 690                         break;
 691                 case FLT_REG_BOOT_CODE:
 692                         ha->flt_region_boot = start;
 693                         break;
 694                 case FLT_REG_VPD_0:
 695                         ha->flt_region_vpd_nvram = start;
 696                         break;
 697                 case FLT_REG_FDT:
 698                         ha->flt_region_fdt = start;
 699                         break;
 700                 case FLT_REG_NPIV_CONF_0:
 701                         if (!(PCI_FUNC(ha->pdev->devfn) & 1))
 702                                 ha->flt_region_npiv_conf = start;
 703                         break;
 704                 case FLT_REG_NPIV_CONF_1:
 705                         if (PCI_FUNC(ha->pdev->devfn) & 1)
 706                                 ha->flt_region_npiv_conf = start;
 707                         break;
 708                 }
 709         }
 710         goto done;
 711
 712 no_flash_data:
 713         /* Use hardcoded defaults. */
 714         loc = locations[0];
 715         def = 0;
 716         if (IS_QLA24XX_TYPE(ha))
 717                 def = 0;
 718         else if (IS_QLA25XX(ha))
 719                 def = 1;
 720         else if (IS_QLA81XX(ha))
 721                 def = 2;
 722         ha->flt_region_fw = def_fw[def];
 723         ha->flt_region_boot = def_boot[def];
 724         ha->flt_region_vpd_nvram = def_vpd_nvram[def];
 725         ha->flt_region_fdt = def_fdt[def];
 726         ha->flt_region_npiv_conf = !(PCI_FUNC(ha->pdev->devfn) & 1) ?
 727             def_npiv_conf0[def]: def_npiv_conf1[def];
 728 done:
 729         DEBUG2(qla_printk(KERN_DEBUG, ha, "FLT[%s]: boot=0x%x fw=0x%x "
 730             "vpd_nvram=0x%x fdt=0x%x flt=0x%x npiv=0x%x.\n", loc,
 731             ha->flt_region_boot, ha->flt_region_fw, ha->flt_region_vpd_nvram,
 732             ha->flt_region_fdt, ha->flt_region_flt, ha->flt_region_npiv_conf));
 733 }
 734
 735 static void
 736 qla2xxx_get_fdt_info(scsi_qla_host_t *vha)
 737 {
 738 #define FLASH_BLK_SIZE_4K       0x1000
 739 #define FLASH_BLK_SIZE_32K      0x8000
 740 #define FLASH_BLK_SIZE_64K      0x10000
 741         const char *loc, *locations[] = { "MID", "FDT" };
 742         uint16_t cnt, chksum;
 743         uint16_t *wptr;
 744         struct qla_fdt_layout *fdt;
 745         uint8_t man_id, flash_id;
 746         uint16_t mid, fid;
 747         struct qla_hw_data *ha = vha->hw;
 748         struct req_que *req = ha->req_q_map[0];
 749
 750         wptr = (uint16_t *)req->ring;
 751         fdt = (struct qla_fdt_layout *)req->ring;
 752         ha->isp_ops->read_optrom(vha, (uint8_t *)req->ring,
 753             ha->flt_region_fdt << 2, OPTROM_BURST_SIZE);
 754         if (*wptr == __constant_cpu_to_le16(0xffff))
 755                 goto no_flash_data;
 756         if (fdt->sig[0] != 'Q' || fdt->sig[1] != 'L' || fdt->sig[2] != 'I' ||
 757             fdt->sig[3] != 'D')
 758                 goto no_flash_data;
 759
 760         for (cnt = 0, chksum = 0; cnt < sizeof(struct qla_fdt_layout) >> 1;
 761             cnt++)
 762                 chksum += le16_to_cpu(*wptr++);
 763         if (chksum) {
 764                 DEBUG2(qla_printk(KERN_INFO, ha, "Inconsistent FDT detected: "
 765                     "checksum=0x%x id=%c version=0x%x.\n", chksum, fdt->sig[0],
 766                     le16_to_cpu(fdt->version)));
 767                 DEBUG9(qla2x00_dump_buffer((uint8_t *)fdt, sizeof(*fdt)));
 768                 goto no_flash_data;
 769         }
 770
 771         loc = locations[1];
 772         mid = le16_to_cpu(fdt->man_id);
 773         fid = le16_to_cpu(fdt->id);
 774         ha->fdt_wrt_disable = fdt->wrt_disable_bits;
 775         ha->fdt_erase_cmd = flash_conf_addr(ha, 0x0300 | fdt->erase_cmd);
 776         ha->fdt_block_size = le32_to_cpu(fdt->block_size);
 777         if (fdt->unprotect_sec_cmd) {
 778                 ha->fdt_unprotect_sec_cmd = flash_conf_addr(ha, 0x0300 |
 779                     fdt->unprotect_sec_cmd);
 780                 ha->fdt_protect_sec_cmd = fdt->protect_sec_cmd ?
 781                     flash_conf_addr(ha, 0x0300 | fdt->protect_sec_cmd):
 782                     flash_conf_addr(ha, 0x0336);
 783         }
 784         goto done;
 785 no_flash_data:
 786         loc = locations[0];
 787         qla24xx_get_flash_manufacturer(ha, &man_id, &flash_id);
 788         mid = man_id;
 789         fid = flash_id;
 790         ha->fdt_wrt_disable = 0x9c;
 791         ha->fdt_erase_cmd = flash_conf_addr(ha, 0x03d8);
 792         switch (man_id) {
 793         case 0xbf: /* STT flash. */
 794                 if (flash_id == 0x8e)
 795                         ha->fdt_block_size = FLASH_BLK_SIZE_64K;
 796                 else
 797                         ha->fdt_block_size = FLASH_BLK_SIZE_32K;
 798
 799                 if (flash_id == 0x80)
 800                         ha->fdt_erase_cmd = flash_conf_addr(ha, 0x0352);
 801                 break;
 802         case 0x13: /* ST M25P80. */
 803                 ha->fdt_block_size = FLASH_BLK_SIZE_64K;
 804                 break;
 805         case 0x1f: /* Atmel 26DF081A. */
 806                 ha->fdt_block_size = FLASH_BLK_SIZE_4K;
 807                 ha->fdt_erase_cmd = flash_conf_addr(ha, 0x0320);
 808                 ha->fdt_unprotect_sec_cmd = flash_conf_addr(ha, 0x0339);
 809                 ha->fdt_protect_sec_cmd = flash_conf_addr(ha, 0x0336);
 810                 break;
 811         default:
 812                 /* Default to 64 kb sector size. */
 813                 ha->fdt_block_size = FLASH_BLK_SIZE_64K;
 814                 break;
 815         }
 816 done:
 817         DEBUG2(qla_printk(KERN_DEBUG, ha, "FDT[%s]: (0x%x/0x%x) erase=0x%x "
 818             "pro=%x upro=%x wrtd=0x%x blk=0x%x.\n", loc, mid, fid,
 819             ha->fdt_erase_cmd, ha->fdt_protect_sec_cmd,
 820             ha->fdt_unprotect_sec_cmd, ha->fdt_wrt_disable,
 821             ha->fdt_block_size));
 822 }
 823
 824 int
 825 qla2xxx_get_flash_info(scsi_qla_host_t *vha)
 826 {
 827         int ret;
 828         uint32_t flt_addr;
 829         struct qla_hw_data *ha = vha->hw;
 830
 831         if (!IS_QLA24XX_TYPE(ha) && !IS_QLA25XX(ha) && !IS_QLA81XX(ha))
 832                 return QLA_SUCCESS;
 833
 834         ret = qla2xxx_find_flt_start(vha, &flt_addr);
 835         if (ret != QLA_SUCCESS)
 836                 return ret;
 837
 838         qla2xxx_get_flt_info(vha, flt_addr);
 839         qla2xxx_get_fdt_info(vha);
 840
 841         return QLA_SUCCESS;
 842 }
 843
 844 void
 845 qla2xxx_flash_npiv_conf(scsi_qla_host_t *vha)
 846 {
 847 #define NPIV_CONFIG_SIZE        (16*1024)
 848         void *data;
 849         uint16_t *wptr;
 850         uint16_t cnt, chksum;
 851         int i;
 852         struct qla_npiv_header hdr;
 853         struct qla_npiv_entry *entry;
 854         struct qla_hw_data *ha = vha->hw;
 855
 856         if (!IS_QLA24XX_TYPE(ha) && !IS_QLA25XX(ha) && !IS_QLA81XX(ha))
 857                 return;
 858
 859         ha->isp_ops->read_optrom(vha, (uint8_t *)&hdr,
 860             ha->flt_region_npiv_conf << 2, sizeof(struct qla_npiv_header));
 861         if (hdr.version == __constant_cpu_to_le16(0xffff))
 862                 return;
 863         if (hdr.version != __constant_cpu_to_le16(1)) {
 864                 DEBUG2(qla_printk(KERN_INFO, ha, "Unsupported NPIV-Config "
 865                     "detected: version=0x%x entries=0x%x checksum=0x%x.\n",
 866                     le16_to_cpu(hdr.version), le16_to_cpu(hdr.entries),
 867                     le16_to_cpu(hdr.checksum)));
 868                 return;
 869         }
 870
 871         data = kmalloc(NPIV_CONFIG_SIZE, GFP_KERNEL);
 872         if (!data) {
 873                 DEBUG2(qla_printk(KERN_INFO, ha, "NPIV-Config: Unable to "
 874                     "allocate memory.\n"));
 875                 return;
 876         }
 877
 878         ha->isp_ops->read_optrom(vha, (uint8_t *)data,
 879             ha->flt_region_npiv_conf << 2, NPIV_CONFIG_SIZE);
 880
 881         cnt = (sizeof(struct qla_npiv_header) + le16_to_cpu(hdr.entries) *
 882             sizeof(struct qla_npiv_entry)) >> 1;
 883         for (wptr = data, chksum = 0; cnt; cnt--)
 884                 chksum += le16_to_cpu(*wptr++);
 885         if (chksum) {
 886                 DEBUG2(qla_printk(KERN_INFO, ha, "Inconsistent NPIV-Config "
 887                     "detected: version=0x%x entries=0x%x checksum=0x%x.\n",
 888                     le16_to_cpu(hdr.version), le16_to_cpu(hdr.entries),
 889                     chksum));
 890                 goto done;
 891         }
 892
 893         entry = data + sizeof(struct qla_npiv_header);
 894         cnt = le16_to_cpu(hdr.entries);
 895         for (i = 0; cnt; cnt--, entry++, i++) {
 896                 uint16_t flags;
 897                 struct fc_vport_identifiers vid;
 898                 struct fc_vport *vport;
 899
 900                 flags = le16_to_cpu(entry->flags);
 901                 if (flags == 0xffff)
 902                         continue;
 903                 if ((flags & BIT_0) == 0)
 904                         continue;
 905
 906                 memset(&vid, 0, sizeof(vid));
 907                 vid.roles = FC_PORT_ROLE_FCP_INITIATOR;
 908                 vid.vport_type = FC_PORTTYPE_NPIV;
 909                 vid.disable = false;
 910                 vid.port_name = wwn_to_u64(entry->port_name);
 911                 vid.node_name = wwn_to_u64(entry->node_name);
 912
 913                 memcpy(&ha->npiv_info[i], entry, sizeof(struct qla_npiv_entry));
 914
 915                 DEBUG2(qla_printk(KERN_DEBUG, ha, "NPIV[%02x]: wwpn=%llx "
 916                         "wwnn=%llx vf_id=0x%x Q_qos=0x%x F_qos=0x%x.\n", cnt,
 917                         vid.port_name, vid.node_name, le16_to_cpu(entry->vf_id),
 918                         entry->q_qos, entry->f_qos));
 919
 920                 if (i < QLA_PRECONFIG_VPORTS) {
 921                         vport = fc_vport_create(vha->host, 0, &vid);
 922                         if (!vport)
 923                                 qla_printk(KERN_INFO, ha,
 924                                 "NPIV-Config: Failed to create vport [%02x]: "
 925                                 "wwpn=%llx wwnn=%llx.\n", cnt,
 926                                 vid.port_name, vid.node_name);
 927                 }
 928         }
 929 done:
 930         kfree(data);
 931         ha->npiv_info = NULL;
 932 }
 933
 934 static void
 935 qla24xx_unprotect_flash(struct qla_hw_data *ha)
 936 {
 937         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
 938
 939         /* Enable flash write. */
 940         WRT_REG_DWORD(&reg->ctrl_status,
 941             RD_REG_DWORD(&reg->ctrl_status) | CSRX_FLASH_ENABLE);
 942         RD_REG_DWORD(&reg->ctrl_status);        /* PCI Posting. */
 943
 944         if (!ha->fdt_wrt_disable)
 945                 return;
 946
 947         /* Disable flash write-protection. */
 948         qla24xx_write_flash_dword(ha, flash_conf_addr(ha, 0x101), 0);
 949         /* Some flash parts need an additional zero-write to clear bits.*/
 950         qla24xx_write_flash_dword(ha, flash_conf_addr(ha, 0x101), 0);
 951 }
 952
 953 static void
 954 qla24xx_protect_flash(struct qla_hw_data *ha)
 955 {
 956         uint32_t cnt;
 957         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
 958
 959         if (!ha->fdt_wrt_disable)
 960                 goto skip_wrt_protect;
 961
 962         /* Enable flash write-protection and wait for completion. */
 963         qla24xx_write_flash_dword(ha, flash_conf_addr(ha, 0x101),
 964             ha->fdt_wrt_disable);
 965         for (cnt = 300; cnt &&
 966             qla24xx_read_flash_dword(ha, flash_conf_addr(ha, 0x005)) & BIT_0;
 967             cnt--) {
 968                 udelay(10);
 969         }
 970
 971 skip_wrt_protect:
 972         /* Disable flash write. */
 973         WRT_REG_DWORD(&reg->ctrl_status,
 974             RD_REG_DWORD(&reg->ctrl_status) & ~CSRX_FLASH_ENABLE);
 975         RD_REG_DWORD(&reg->ctrl_status);        /* PCI Posting. */
 976 }
 977
 978 static int
 979 qla24xx_write_flash_data(scsi_qla_host_t *vha, uint32_t *dwptr, uint32_t faddr,
 980     uint32_t dwords)
 981 {
 982         int ret;
 983         uint32_t liter, miter;
 984         uint32_t sec_mask, rest_addr;
 985         uint32_t fdata;
 986         dma_addr_t optrom_dma;
 987         void *optrom = NULL;
 988         uint32_t *s, *d;
 989         struct qla_hw_data *ha = vha->hw;
 990
 991         ret = QLA_SUCCESS;
 992
 993         /* Prepare burst-capable write on supported ISPs. */
 994         if ((IS_QLA25XX(ha) || IS_QLA81XX(ha)) && !(faddr & 0xfff) &&
 995             dwords > OPTROM_BURST_DWORDS) {
 996                 optrom = dma_alloc_coherent(&ha->pdev->dev, OPTROM_BURST_SIZE,
 997                     &optrom_dma, GFP_KERNEL);
 998                 if (!optrom) {
 999                         qla_printk(KERN_DEBUG, ha,
1000                             "Unable to allocate memory for optrom burst write "
1001                             "(%x KB).\n", OPTROM_BURST_SIZE / 1024);
1002                 }
1003         }
1004
1005         rest_addr = (ha->fdt_block_size >> 2) - 1;
1006         sec_mask = ~rest_addr;
1007
1008         qla24xx_unprotect_flash(ha);
1009
1010         for (liter = 0; liter < dwords; liter++, faddr++, dwptr++) {
1011                 fdata = (faddr & sec_mask) << 2;
1012
1013                 /* Are we at the beginning of a sector? */
1014                 if ((faddr & rest_addr) == 0) {
1015                         /* Do sector unprotect. */
1016                         if (ha->fdt_unprotect_sec_cmd)
1017                                 qla24xx_write_flash_dword(ha,
1018                                     ha->fdt_unprotect_sec_cmd,
1019                                     (fdata & 0xff00) | ((fdata << 16) &
1020                                     0xff0000) | ((fdata >> 16) & 0xff));
1021                         ret = qla24xx_write_flash_dword(ha, ha->fdt_erase_cmd,
1022                             (fdata & 0xff00) |((fdata << 16) &
1023                             0xff0000) | ((fdata >> 16) & 0xff));
1024                         if (ret != QLA_SUCCESS) {
1025                                 DEBUG9(qla_printk("Unable to flash sector: "
1026                                     "address=%x.\n", faddr));
1027                                 break;
1028                         }
1029                 }
1030
1031                 /* Go with burst-write. */
1032                 if (optrom && (liter + OPTROM_BURST_DWORDS) <= dwords) {
1033                         /* Copy data to DMA'ble buffer. */
1034                         for (miter = 0, s = optrom, d = dwptr;
1035                             miter < OPTROM_BURST_DWORDS; miter++, s++, d++)
1036                                 *s = cpu_to_le32(*d);
1037
1038                         ret = qla2x00_load_ram(vha, optrom_dma,
1039                             flash_data_addr(ha, faddr),
1040                             OPTROM_BURST_DWORDS);
1041                         if (ret != QLA_SUCCESS) {
1042                                 qla_printk(KERN_WARNING, ha,
1043                                     "Unable to burst-write optrom segment "
1044                                     "(%x/%x/%llx).\n", ret,
1045                                     flash_data_addr(ha, faddr),
1046                                     (unsigned long long)optrom_dma);
1047                                 qla_printk(KERN_WARNING, ha,
1048                                     "Reverting to slow-write.\n");
1049
1050                                 dma_free_coherent(&ha->pdev->dev,
1051                                     OPTROM_BURST_SIZE, optrom, optrom_dma);
1052                                 optrom = NULL;
1053                         } else {
1054                                 liter += OPTROM_BURST_DWORDS - 1;
1055                                 faddr += OPTROM_BURST_DWORDS - 1;
1056                                 dwptr += OPTROM_BURST_DWORDS - 1;
1057                                 continue;
1058                         }
1059                 }
1060
1061                 ret = qla24xx_write_flash_dword(ha,
1062                     flash_data_addr(ha, faddr), cpu_to_le32(*dwptr));
1063                 if (ret != QLA_SUCCESS) {
1064                         DEBUG9(printk("%s(%ld) Unable to program flash "
1065                             "address=%x data=%x.\n", __func__,
1066                             vha->host_no, faddr, *dwptr));
1067                         break;
1068                 }
1069
1070                 /* Do sector protect. */
1071                 if (ha->fdt_unprotect_sec_cmd &&
1072                     ((faddr & rest_addr) == rest_addr))
1073                         qla24xx_write_flash_dword(ha,
1074                             ha->fdt_protect_sec_cmd,
1075                             (fdata & 0xff00) | ((fdata << 16) &
1076                             0xff0000) | ((fdata >> 16) & 0xff));
1077         }
1078
1079         qla24xx_protect_flash(ha);
1080
1081         if (optrom)
1082                 dma_free_coherent(&ha->pdev->dev,
1083                     OPTROM_BURST_SIZE, optrom, optrom_dma);
1084
1085         return ret;
1086 }
1087
1088 uint8_t *
1089 qla2x00_read_nvram_data(scsi_qla_host_t *vha, uint8_t *buf, uint32_t naddr,
1090     uint32_t bytes)
1091 {
1092         uint32_t i;
1093         uint16_t *wptr;
1094         struct qla_hw_data *ha = vha->hw;
1095
1096         /* Word reads to NVRAM via registers. */
1097         wptr = (uint16_t *)buf;
1098         qla2x00_lock_nvram_access(ha);
1099         for (i = 0; i < bytes >> 1; i++, naddr++)
1100                 wptr[i] = cpu_to_le16(qla2x00_get_nvram_word(ha,
1101                     naddr));
1102         qla2x00_unlock_nvram_access(ha);
1103
1104         return buf;
1105 }
1106
1107 uint8_t *
1108 qla24xx_read_nvram_data(scsi_qla_host_t *vha, uint8_t *buf, uint32_t naddr,
1109     uint32_t bytes)
1110 {
1111         uint32_t i;
1112         uint32_t *dwptr;
1113         struct qla_hw_data *ha = vha->hw;
1114
1115         /* Dword reads to flash. */
1116         dwptr = (uint32_t *)buf;
1117         for (i = 0; i < bytes >> 2; i++, naddr++)
1118                 dwptr[i] = cpu_to_le32(qla24xx_read_flash_dword(ha,
1119                     nvram_data_addr(ha, naddr)));
1120
1121         return buf;
1122 }
1123
1124 int
1125 qla2x00_write_nvram_data(scsi_qla_host_t *vha, uint8_t *buf, uint32_t naddr,
1126     uint32_t bytes)
1127 {
1128         int ret, stat;
1129         uint32_t i;
1130         uint16_t *wptr;
1131         unsigned long flags;
1132         struct qla_hw_data *ha = vha->hw;
1133
1134         ret = QLA_SUCCESS;
1135
1136         spin_lock_irqsave(&ha->hardware_lock, flags);
1137         qla2x00_lock_nvram_access(ha);
1138
1139         /* Disable NVRAM write-protection. */
1140         stat = qla2x00_clear_nvram_protection(ha);
1141
1142         wptr = (uint16_t *)buf;
1143         for (i = 0; i < bytes >> 1; i++, naddr++) {
1144                 qla2x00_write_nvram_word(ha, naddr,
1145                     cpu_to_le16(*wptr));
1146                 wptr++;
1147         }
1148
1149         /* Enable NVRAM write-protection. */
1150         qla2x00_set_nvram_protection(ha, stat);
1151
1152         qla2x00_unlock_nvram_access(ha);
1153         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1154
1155         return ret;
1156 }
1157
1158 int
1159 qla24xx_write_nvram_data(scsi_qla_host_t *vha, uint8_t *buf, uint32_t naddr,
1160     uint32_t bytes)
1161 {
1162         int ret;
1163         uint32_t i;
1164         uint32_t *dwptr;
1165         struct qla_hw_data *ha = vha->hw;
1166         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1167
1168         ret = QLA_SUCCESS;
1169
1170         /* Enable flash write. */
1171         WRT_REG_DWORD(&reg->ctrl_status,
1172             RD_REG_DWORD(&reg->ctrl_status) | CSRX_FLASH_ENABLE);
1173         RD_REG_DWORD(&reg->ctrl_status);        /* PCI Posting. */
1174
1175         /* Disable NVRAM write-protection. */
1176         qla24xx_write_flash_dword(ha, nvram_conf_addr(ha, 0x101), 0);
1177         qla24xx_write_flash_dword(ha, nvram_conf_addr(ha, 0x101), 0);
1178
1179         /* Dword writes to flash. */
1180         dwptr = (uint32_t *)buf;
1181         for (i = 0; i < bytes >> 2; i++, naddr++, dwptr++) {
1182                 ret = qla24xx_write_flash_dword(ha,
1183                     nvram_data_addr(ha, naddr), cpu_to_le32(*dwptr));
1184                 if (ret != QLA_SUCCESS) {
1185                         DEBUG9(qla_printk("Unable to program nvram address=%x "
1186                             "data=%x.\n", naddr, *dwptr));
1187                         break;
1188                 }
1189         }
1190
1191         /* Enable NVRAM write-protection. */
1192         qla24xx_write_flash_dword(ha, nvram_conf_addr(ha, 0x101), 0x8c);
1193
1194         /* Disable flash write. */
1195         WRT_REG_DWORD(&reg->ctrl_status,
1196             RD_REG_DWORD(&reg->ctrl_status) & ~CSRX_FLASH_ENABLE);
1197         RD_REG_DWORD(&reg->ctrl_status);        /* PCI Posting. */
1198
1199         return ret;
1200 }
1201
1202 uint8_t *
1203 qla25xx_read_nvram_data(scsi_qla_host_t *vha, uint8_t *buf, uint32_t naddr,
1204     uint32_t bytes)
1205 {
1206         uint32_t i;
1207         uint32_t *dwptr;
1208         struct qla_hw_data *ha = vha->hw;
1209
1210         /* Dword reads to flash. */
1211         dwptr = (uint32_t *)buf;
1212         for (i = 0; i < bytes >> 2; i++, naddr++)
1213                 dwptr[i] = cpu_to_le32(qla24xx_read_flash_dword(ha,
1214                     flash_data_addr(ha, ha->flt_region_vpd_nvram | naddr)));
1215
1216         return buf;
1217 }
1218
1219 int
1220 qla25xx_write_nvram_data(scsi_qla_host_t *vha, uint8_t *buf, uint32_t naddr,
1221     uint32_t bytes)
1222 {
1223         struct qla_hw_data *ha = vha->hw;
1224 #define RMW_BUFFER_SIZE (64 * 1024)
1225         uint8_t *dbuf;
1226
1227         dbuf = vmalloc(RMW_BUFFER_SIZE);
1228         if (!dbuf)
1229                 return QLA_MEMORY_ALLOC_FAILED;
1230         ha->isp_ops->read_optrom(vha, dbuf, ha->flt_region_vpd_nvram << 2,
1231             RMW_BUFFER_SIZE);
1232         memcpy(dbuf + (naddr << 2), buf, bytes);
1233         ha->isp_ops->write_optrom(vha, dbuf, ha->flt_region_vpd_nvram << 2,
1234             RMW_BUFFER_SIZE);
1235         vfree(dbuf);
1236
1237         return QLA_SUCCESS;
1238 }
1239
1240 static inline void
1241 qla2x00_flip_colors(struct qla_hw_data *ha, uint16_t *pflags)
1242 {
1243         if (IS_QLA2322(ha)) {
1244                 /* Flip all colors. */
1245                 if (ha->beacon_color_state == QLA_LED_ALL_ON) {
1246                         /* Turn off. */
1247                         ha->beacon_color_state = 0;
1248                         *pflags = GPIO_LED_ALL_OFF;
1249                 } else {
1250                         /* Turn on. */
1251                         ha->beacon_color_state = QLA_LED_ALL_ON;
1252                         *pflags = GPIO_LED_RGA_ON;
1253                 }
1254         } else {
1255                 /* Flip green led only. */
1256                 if (ha->beacon_color_state == QLA_LED_GRN_ON) {
1257                         /* Turn off. */
1258                         ha->beacon_color_state = 0;
1259                         *pflags = GPIO_LED_GREEN_OFF_AMBER_OFF;
1260                 } else {
1261                         /* Turn on. */
1262                         ha->beacon_color_state = QLA_LED_GRN_ON;
1263                         *pflags = GPIO_LED_GREEN_ON_AMBER_OFF;
1264                 }
1265         }
1266 }
1267
1268 #define PIO_REG(h, r) ((h)->pio_address + offsetof(struct device_reg_2xxx, r))
1269
1270 void
1271 qla2x00_beacon_blink(struct scsi_qla_host *vha)
1272 {
1273         uint16_t gpio_enable;
1274         uint16_t gpio_data;
1275         uint16_t led_color = 0;
1276         unsigned long flags;
1277         struct qla_hw_data *ha = vha->hw;
1278         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1279
1280         spin_lock_irqsave(&ha->hardware_lock, flags);
1281
1282         /* Save the Original GPIOE. */
1283         if (ha->pio_address) {
1284                 gpio_enable = RD_REG_WORD_PIO(PIO_REG(ha, gpioe));
1285                 gpio_data = RD_REG_WORD_PIO(PIO_REG(ha, gpiod));
1286         } else {
1287                 gpio_enable = RD_REG_WORD(&reg->gpioe);
1288                 gpio_data = RD_REG_WORD(&reg->gpiod);
1289         }
1290
1291         /* Set the modified gpio_enable values */
1292         gpio_enable |= GPIO_LED_MASK;
1293
1294         if (ha->pio_address) {
1295                 WRT_REG_WORD_PIO(PIO_REG(ha, gpioe), gpio_enable);
1296         } else {
1297                 WRT_REG_WORD(&reg->gpioe, gpio_enable);
1298                 RD_REG_WORD(&reg->gpioe);
1299         }
1300
1301         qla2x00_flip_colors(ha, &led_color);
1302
1303         /* Clear out any previously set LED color. */
1304         gpio_data &= ~GPIO_LED_MASK;
1305
1306         /* Set the new input LED color to GPIOD. */
1307         gpio_data |= led_color;
1308
1309         /* Set the modified gpio_data values */
1310         if (ha->pio_address) {
1311                 WRT_REG_WORD_PIO(PIO_REG(ha, gpiod), gpio_data);
1312         } else {
1313                 WRT_REG_WORD(&reg->gpiod, gpio_data);
1314                 RD_REG_WORD(&reg->gpiod);
1315         }
1316
1317         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1318 }
1319
1320 int
1321 qla2x00_beacon_on(struct scsi_qla_host *vha)
1322 {
1323         uint16_t gpio_enable;
1324         uint16_t gpio_data;
1325         unsigned long flags;
1326         struct qla_hw_data *ha = vha->hw;
1327         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1328
1329         ha->fw_options[1] &= ~FO1_SET_EMPHASIS_SWING;
1330         ha->fw_options[1] |= FO1_DISABLE_GPIO6_7;
1331
1332         if (qla2x00_set_fw_options(vha, ha->fw_options) != QLA_SUCCESS) {
1333                 qla_printk(KERN_WARNING, ha,
1334                     "Unable to update fw options (beacon on).\n");
1335                 return QLA_FUNCTION_FAILED;
1336         }
1337
1338         /* Turn off LEDs. */
1339         spin_lock_irqsave(&ha->hardware_lock, flags);
1340         if (ha->pio_address) {
1341                 gpio_enable = RD_REG_WORD_PIO(PIO_REG(ha, gpioe));
1342                 gpio_data = RD_REG_WORD_PIO(PIO_REG(ha, gpiod));
1343         } else {
1344                 gpio_enable = RD_REG_WORD(&reg->gpioe);
1345                 gpio_data = RD_REG_WORD(&reg->gpiod);
1346         }
1347         gpio_enable |= GPIO_LED_MASK;
1348
1349         /* Set the modified gpio_enable values. */
1350         if (ha->pio_address) {
1351                 WRT_REG_WORD_PIO(PIO_REG(ha, gpioe), gpio_enable);
1352         } else {
1353                 WRT_REG_WORD(&reg->gpioe, gpio_enable);
1354                 RD_REG_WORD(&reg->gpioe);
1355         }
1356
1357         /* Clear out previously set LED colour. */
1358         gpio_data &= ~GPIO_LED_MASK;
1359         if (ha->pio_address) {
1360                 WRT_REG_WORD_PIO(PIO_REG(ha, gpiod), gpio_data);
1361         } else {
1362                 WRT_REG_WORD(&reg->gpiod, gpio_data);
1363                 RD_REG_WORD(&reg->gpiod);
1364         }
1365         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1366
1367         /*
1368          * Let the per HBA timer kick off the blinking process based on
1369          * the following flags. No need to do anything else now.
1370          */
1371         ha->beacon_blink_led = 1;
1372         ha->beacon_color_state = 0;
1373
1374         return QLA_SUCCESS;
1375 }
1376
1377 int
1378 qla2x00_beacon_off(struct scsi_qla_host *vha)
1379 {
1380         int rval = QLA_SUCCESS;
1381         struct qla_hw_data *ha = vha->hw;
1382
1383         ha->beacon_blink_led = 0;
1384
1385         /* Set the on flag so when it gets flipped it will be off. */
1386         if (IS_QLA2322(ha))
1387                 ha->beacon_color_state = QLA_LED_ALL_ON;
1388         else
1389                 ha->beacon_color_state = QLA_LED_GRN_ON;
1390
1391         ha->isp_ops->beacon_blink(vha); /* This turns green LED off */
1392
1393         ha->fw_options[1] &= ~FO1_SET_EMPHASIS_SWING;
1394         ha->fw_options[1] &= ~FO1_DISABLE_GPIO6_7;
1395
1396         rval = qla2x00_set_fw_options(vha, ha->fw_options);
1397         if (rval != QLA_SUCCESS)
1398                 qla_printk(KERN_WARNING, ha,
1399                     "Unable to update fw options (beacon off).\n");
1400         return rval;
1401 }
1402
1403
1404 static inline void
1405 qla24xx_flip_colors(struct qla_hw_data *ha, uint16_t *pflags)
1406 {
1407         /* Flip all colors. */
1408         if (ha->beacon_color_state == QLA_LED_ALL_ON) {
1409                 /* Turn off. */
1410                 ha->beacon_color_state = 0;
1411                 *pflags = 0;
1412         } else {
1413                 /* Turn on. */
1414                 ha->beacon_color_state = QLA_LED_ALL_ON;
1415                 *pflags = GPDX_LED_YELLOW_ON | GPDX_LED_AMBER_ON;
1416         }
1417 }
1418
1419 void
1420 qla24xx_beacon_blink(struct scsi_qla_host *vha)
1421 {
1422         uint16_t led_color = 0;
1423         uint32_t gpio_data;
1424         unsigned long flags;
1425         struct qla_hw_data *ha = vha->hw;
1426         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1427
1428         /* Save the Original GPIOD. */
1429         spin_lock_irqsave(&ha->hardware_lock, flags);
1430         gpio_data = RD_REG_DWORD(&reg->gpiod);
1431
1432         /* Enable the gpio_data reg for update. */
1433         gpio_data |= GPDX_LED_UPDATE_MASK;
1434
1435         WRT_REG_DWORD(&reg->gpiod, gpio_data);
1436         gpio_data = RD_REG_DWORD(&reg->gpiod);
1437
1438         /* Set the color bits. */
1439         qla24xx_flip_colors(ha, &led_color);
1440
1441         /* Clear out any previously set LED color. */
1442         gpio_data &= ~GPDX_LED_COLOR_MASK;
1443
1444         /* Set the new input LED color to GPIOD. */
1445         gpio_data |= led_color;
1446
1447         /* Set the modified gpio_data values. */
1448         WRT_REG_DWORD(&reg->gpiod, gpio_data);
1449         gpio_data = RD_REG_DWORD(&reg->gpiod);
1450         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1451 }
1452
1453 int
1454 qla24xx_beacon_on(struct scsi_qla_host *vha)
1455 {
1456         uint32_t gpio_data;
1457         unsigned long flags;
1458         struct qla_hw_data *ha = vha->hw;
1459         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1460
1461         if (ha->beacon_blink_led == 0) {
1462                 /* Enable firmware for update */
1463                 ha->fw_options[1] |= ADD_FO1_DISABLE_GPIO_LED_CTRL;
1464
1465                 if (qla2x00_set_fw_options(vha, ha->fw_options) != QLA_SUCCESS)
1466                         return QLA_FUNCTION_FAILED;
1467
1468                 if (qla2x00_get_fw_options(vha, ha->fw_options) !=
1469                     QLA_SUCCESS) {
1470                         qla_printk(KERN_WARNING, ha,
1471                             "Unable to update fw options (beacon on).\n");
1472                         return QLA_FUNCTION_FAILED;
1473                 }
1474
1475                 spin_lock_irqsave(&ha->hardware_lock, flags);
1476                 gpio_data = RD_REG_DWORD(&reg->gpiod);
1477
1478                 /* Enable the gpio_data reg for update. */
1479                 gpio_data |= GPDX_LED_UPDATE_MASK;
1480                 WRT_REG_DWORD(&reg->gpiod, gpio_data);
1481                 RD_REG_DWORD(&reg->gpiod);
1482
1483                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1484         }
1485
1486         /* So all colors blink together. */
1487         ha->beacon_color_state = 0;
1488
1489         /* Let the per HBA timer kick off the blinking process. */
1490         ha->beacon_blink_led = 1;
1491
1492         return QLA_SUCCESS;
1493 }
1494
1495 int
1496 qla24xx_beacon_off(struct scsi_qla_host *vha)
1497 {
1498         uint32_t gpio_data;
1499         unsigned long flags;
1500         struct qla_hw_data *ha = vha->hw;
1501         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1502
1503         ha->beacon_blink_led = 0;
1504         ha->beacon_color_state = QLA_LED_ALL_ON;
1505
1506         ha->isp_ops->beacon_blink(vha); /* Will flip to all off. */
1507
1508         /* Give control back to firmware. */
1509         spin_lock_irqsave(&ha->hardware_lock, flags);
1510         gpio_data = RD_REG_DWORD(&reg->gpiod);
1511
1512         /* Disable the gpio_data reg for update. */
1513         gpio_data &= ~GPDX_LED_UPDATE_MASK;
1514         WRT_REG_DWORD(&reg->gpiod, gpio_data);
1515         RD_REG_DWORD(&reg->gpiod);
1516         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1517
1518         ha->fw_options[1] &= ~ADD_FO1_DISABLE_GPIO_LED_CTRL;
1519
1520         if (qla2x00_set_fw_options(vha, ha->fw_options) != QLA_SUCCESS) {
1521                 qla_printk(KERN_WARNING, ha,
1522                     "Unable to update fw options (beacon off).\n");
1523                 return QLA_FUNCTION_FAILED;
1524         }
1525
1526         if (qla2x00_get_fw_options(vha, ha->fw_options) != QLA_SUCCESS) {
1527                 qla_printk(KERN_WARNING, ha,
1528                     "Unable to get fw options (beacon off).\n");
1529                 return QLA_FUNCTION_FAILED;
1530         }
1531
1532         return QLA_SUCCESS;
1533 }
1534
1535
1536 /*
1537  * Flash support routines
1538  */
1539
1540 /**
1541  * qla2x00_flash_enable() - Setup flash for reading and writing.
1542  * @ha: HA context
1543  */
1544 static void
1545 qla2x00_flash_enable(struct qla_hw_data *ha)
1546 {
1547         uint16_t data;
1548         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1549
1550         data = RD_REG_WORD(&reg->ctrl_status);
1551         data |= CSR_FLASH_ENABLE;
1552         WRT_REG_WORD(&reg->ctrl_status, data);
1553         RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
1554 }
1555
1556 /**
1557  * qla2x00_flash_disable() - Disable flash and allow RISC to run.
1558  * @ha: HA context
1559  */
1560 static void
1561 qla2x00_flash_disable(struct qla_hw_data *ha)
1562 {
1563         uint16_t data;
1564         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1565
1566         data = RD_REG_WORD(&reg->ctrl_status);
1567         data &= ~(CSR_FLASH_ENABLE);
1568         WRT_REG_WORD(&reg->ctrl_status, data);
1569         RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
1570 }
1571
1572 /**
1573  * qla2x00_read_flash_byte() - Reads a byte from flash
1574  * @ha: HA context
1575  * @addr: Address in flash to read
1576  *
1577  * A word is read from the chip, but, only the lower byte is valid.
1578  *
1579  * Returns the byte read from flash @addr.
1580  */
1581 static uint8_t
1582 qla2x00_read_flash_byte(struct qla_hw_data *ha, uint32_t addr)
1583 {
1584         uint16_t data;
1585         uint16_t bank_select;
1586         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1587
1588         bank_select = RD_REG_WORD(&reg->ctrl_status);
1589
1590         if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
1591                 /* Specify 64K address range: */
1592                 /*  clear out Module Select and Flash Address bits [19:16]. */
1593                 bank_select &= ~0xf8;
1594                 bank_select |= addr >> 12 & 0xf0;
1595                 bank_select |= CSR_FLASH_64K_BANK;
1596                 WRT_REG_WORD(&reg->ctrl_status, bank_select);
1597                 RD_REG_WORD(&reg->ctrl_status); /* PCI Posting. */
1598
1599                 WRT_REG_WORD(&reg->flash_address, (uint16_t)addr);
1600                 data = RD_REG_WORD(&reg->flash_data);
1601
1602                 return (uint8_t)data;
1603         }
1604
1605         /* Setup bit 16 of flash address. */
1606         if ((addr & BIT_16) && ((bank_select & CSR_FLASH_64K_BANK) == 0)) {
1607                 bank_select |= CSR_FLASH_64K_BANK;
1608                 WRT_REG_WORD(&reg->ctrl_status, bank_select);
1609                 RD_REG_WORD(&reg->ctrl_status); /* PCI Posting. */
1610         } else if (((addr & BIT_16) == 0) &&
1611             (bank_select & CSR_FLASH_64K_BANK)) {
1612                 bank_select &= ~(CSR_FLASH_64K_BANK);
1613                 WRT_REG_WORD(&reg->ctrl_status, bank_select);
1614                 RD_REG_WORD(&reg->ctrl_status); /* PCI Posting. */
1615         }
1616
1617         /* Always perform IO mapped accesses to the FLASH registers. */
1618         if (ha->pio_address) {
1619                 uint16_t data2;
1620
1621                 WRT_REG_WORD_PIO(PIO_REG(ha, flash_address), (uint16_t)addr);
1622                 do {
1623                         data = RD_REG_WORD_PIO(PIO_REG(ha, flash_data));
1624                         barrier();
1625                         cpu_relax();
1626                         data2 = RD_REG_WORD_PIO(PIO_REG(ha, flash_data));
1627                 } while (data != data2);
1628         } else {
1629                 WRT_REG_WORD(&reg->flash_address, (uint16_t)addr);
1630                 data = qla2x00_debounce_register(&reg->flash_data);
1631         }
1632
1633         return (uint8_t)data;
1634 }
1635
1636 /**
1637  * qla2x00_write_flash_byte() - Write a byte to flash
1638  * @ha: HA context
1639  * @addr: Address in flash to write
1640  * @data: Data to write
1641  */
1642 static void
1643 qla2x00_write_flash_byte(struct qla_hw_data *ha, uint32_t addr, uint8_t data)
1644 {
1645         uint16_t bank_select;
1646         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1647
1648         bank_select = RD_REG_WORD(&reg->ctrl_status);
1649         if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
1650                 /* Specify 64K address range: */
1651                 /*  clear out Module Select and Flash Address bits [19:16]. */
1652                 bank_select &= ~0xf8;
1653                 bank_select |= addr >> 12 & 0xf0;
1654                 bank_select |= CSR_FLASH_64K_BANK;
1655                 WRT_REG_WORD(&reg->ctrl_status, bank_select);
1656                 RD_REG_WORD(&reg->ctrl_status); /* PCI Posting. */
1657
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                 return;
1664         }
1665
1666         /* Setup bit 16 of flash address. */
1667         if ((addr & BIT_16) && ((bank_select & CSR_FLASH_64K_BANK) == 0)) {
1668                 bank_select |= CSR_FLASH_64K_BANK;
1669                 WRT_REG_WORD(&reg->ctrl_status, bank_select);
1670                 RD_REG_WORD(&reg->ctrl_status); /* PCI Posting. */
1671         } else if (((addr & BIT_16) == 0) &&
1672             (bank_select & CSR_FLASH_64K_BANK)) {
1673                 bank_select &= ~(CSR_FLASH_64K_BANK);
1674                 WRT_REG_WORD(&reg->ctrl_status, bank_select);
1675                 RD_REG_WORD(&reg->ctrl_status); /* PCI Posting. */
1676         }
1677
1678         /* Always perform IO mapped accesses to the FLASH registers. */
1679         if (ha->pio_address) {
1680                 WRT_REG_WORD_PIO(PIO_REG(ha, flash_address), (uint16_t)addr);
1681                 WRT_REG_WORD_PIO(PIO_REG(ha, flash_data), (uint16_t)data);
1682         } else {
1683                 WRT_REG_WORD(&reg->flash_address, (uint16_t)addr);
1684                 RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
1685                 WRT_REG_WORD(&reg->flash_data, (uint16_t)data);
1686                 RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
1687         }
1688 }
1689
1690 /**
1691  * qla2x00_poll_flash() - Polls flash for completion.
1692  * @ha: HA context
1693  * @addr: Address in flash to poll
1694  * @poll_data: Data to be polled
1695  * @man_id: Flash manufacturer ID
1696  * @flash_id: Flash ID
1697  *
1698  * This function polls the device until bit 7 of what is read matches data
1699  * bit 7 or until data bit 5 becomes a 1.  If that hapens, the flash ROM timed
1700  * out (a fatal error).  The flash book recommeds reading bit 7 again after
1701  * reading bit 5 as a 1.
1702  *
1703  * Returns 0 on success, else non-zero.
1704  */
1705 static int
1706 qla2x00_poll_flash(struct qla_hw_data *ha, uint32_t addr, uint8_t poll_data,
1707     uint8_t man_id, uint8_t flash_id)
1708 {
1709         int status;
1710         uint8_t flash_data;
1711         uint32_t cnt;
1712
1713         status = 1;
1714
1715         /* Wait for 30 seconds for command to finish. */
1716         poll_data &= BIT_7;
1717         for (cnt = 3000000; cnt; cnt--) {
1718                 flash_data = qla2x00_read_flash_byte(ha, addr);
1719                 if ((flash_data & BIT_7) == poll_data) {
1720                         status = 0;
1721                         break;
1722                 }
1723
1724                 if (man_id != 0x40 && man_id != 0xda) {
1725                         if ((flash_data & BIT_5) && cnt > 2)
1726                                 cnt = 2;
1727                 }
1728                 udelay(10);
1729                 barrier();
1730                 cond_resched();
1731         }
1732         return status;
1733 }
1734
1735 /**
1736  * qla2x00_program_flash_address() - Programs a flash address
1737  * @ha: HA context
1738  * @addr: Address in flash to program
1739  * @data: Data to be written in flash
1740  * @man_id: Flash manufacturer ID
1741  * @flash_id: Flash ID
1742  *
1743  * Returns 0 on success, else non-zero.
1744  */
1745 static int
1746 qla2x00_program_flash_address(struct qla_hw_data *ha, uint32_t addr,
1747     uint8_t data, uint8_t man_id, uint8_t flash_id)
1748 {
1749         /* Write Program Command Sequence. */
1750         if (IS_OEM_001(ha)) {
1751                 qla2x00_write_flash_byte(ha, 0xaaa, 0xaa);
1752                 qla2x00_write_flash_byte(ha, 0x555, 0x55);
1753                 qla2x00_write_flash_byte(ha, 0xaaa, 0xa0);
1754                 qla2x00_write_flash_byte(ha, addr, data);
1755         } else {
1756                 if (man_id == 0xda && flash_id == 0xc1) {
1757                         qla2x00_write_flash_byte(ha, addr, data);
1758                         if (addr & 0x7e)
1759                                 return 0;
1760                 } else {
1761                         qla2x00_write_flash_byte(ha, 0x5555, 0xaa);
1762                         qla2x00_write_flash_byte(ha, 0x2aaa, 0x55);
1763                         qla2x00_write_flash_byte(ha, 0x5555, 0xa0);
1764                         qla2x00_write_flash_byte(ha, addr, data);
1765                 }
1766         }
1767
1768         udelay(150);
1769
1770         /* Wait for write to complete. */
1771         return qla2x00_poll_flash(ha, addr, data, man_id, flash_id);
1772 }
1773
1774 /**
1775  * qla2x00_erase_flash() - Erase the flash.
1776  * @ha: HA context
1777  * @man_id: Flash manufacturer ID
1778  * @flash_id: Flash ID
1779  *
1780  * Returns 0 on success, else non-zero.
1781  */
1782 static int
1783 qla2x00_erase_flash(struct qla_hw_data *ha, uint8_t man_id, uint8_t flash_id)
1784 {
1785         /* Individual Sector Erase Command Sequence */
1786         if (IS_OEM_001(ha)) {
1787                 qla2x00_write_flash_byte(ha, 0xaaa, 0xaa);
1788                 qla2x00_write_flash_byte(ha, 0x555, 0x55);
1789                 qla2x00_write_flash_byte(ha, 0xaaa, 0x80);
1790                 qla2x00_write_flash_byte(ha, 0xaaa, 0xaa);
1791                 qla2x00_write_flash_byte(ha, 0x555, 0x55);
1792                 qla2x00_write_flash_byte(ha, 0xaaa, 0x10);
1793         } else {
1794                 qla2x00_write_flash_byte(ha, 0x5555, 0xaa);
1795                 qla2x00_write_flash_byte(ha, 0x2aaa, 0x55);
1796                 qla2x00_write_flash_byte(ha, 0x5555, 0x80);
1797                 qla2x00_write_flash_byte(ha, 0x5555, 0xaa);
1798                 qla2x00_write_flash_byte(ha, 0x2aaa, 0x55);
1799                 qla2x00_write_flash_byte(ha, 0x5555, 0x10);
1800         }
1801
1802         udelay(150);
1803
1804         /* Wait for erase to complete. */
1805         return qla2x00_poll_flash(ha, 0x00, 0x80, man_id, flash_id);
1806 }
1807
1808 /**
1809  * qla2x00_erase_flash_sector() - Erase a flash sector.
1810  * @ha: HA context
1811  * @addr: Flash sector to erase
1812  * @sec_mask: Sector address mask
1813  * @man_id: Flash manufacturer ID
1814  * @flash_id: Flash ID
1815  *
1816  * Returns 0 on success, else non-zero.
1817  */
1818 static int
1819 qla2x00_erase_flash_sector(struct qla_hw_data *ha, uint32_t addr,
1820     uint32_t sec_mask, uint8_t man_id, uint8_t flash_id)
1821 {
1822         /* Individual Sector Erase Command Sequence */
1823         qla2x00_write_flash_byte(ha, 0x5555, 0xaa);
1824         qla2x00_write_flash_byte(ha, 0x2aaa, 0x55);
1825         qla2x00_write_flash_byte(ha, 0x5555, 0x80);
1826         qla2x00_write_flash_byte(ha, 0x5555, 0xaa);
1827         qla2x00_write_flash_byte(ha, 0x2aaa, 0x55);
1828         if (man_id == 0x1f && flash_id == 0x13)
1829                 qla2x00_write_flash_byte(ha, addr & sec_mask, 0x10);
1830         else
1831                 qla2x00_write_flash_byte(ha, addr & sec_mask, 0x30);
1832
1833         udelay(150);
1834
1835         /* Wait for erase to complete. */
1836         return qla2x00_poll_flash(ha, addr, 0x80, man_id, flash_id);
1837 }
1838
1839 /**
1840  * qla2x00_get_flash_manufacturer() - Read manufacturer ID from flash chip.
1841  * @man_id: Flash manufacturer ID
1842  * @flash_id: Flash ID
1843  */
1844 static void
1845 qla2x00_get_flash_manufacturer(struct qla_hw_data *ha, uint8_t *man_id,
1846     uint8_t *flash_id)
1847 {
1848         qla2x00_write_flash_byte(ha, 0x5555, 0xaa);
1849         qla2x00_write_flash_byte(ha, 0x2aaa, 0x55);
1850         qla2x00_write_flash_byte(ha, 0x5555, 0x90);
1851         *man_id = qla2x00_read_flash_byte(ha, 0x0000);
1852         *flash_id = qla2x00_read_flash_byte(ha, 0x0001);
1853         qla2x00_write_flash_byte(ha, 0x5555, 0xaa);
1854         qla2x00_write_flash_byte(ha, 0x2aaa, 0x55);
1855         qla2x00_write_flash_byte(ha, 0x5555, 0xf0);
1856 }
1857
1858 static void
1859 qla2x00_read_flash_data(struct qla_hw_data *ha, uint8_t *tmp_buf,
1860         uint32_t saddr, uint32_t length)
1861 {
1862         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1863         uint32_t midpoint, ilength;
1864         uint8_t data;
1865
1866         midpoint = length / 2;
1867
1868         WRT_REG_WORD(&reg->nvram, 0);
1869         RD_REG_WORD(&reg->nvram);
1870         for (ilength = 0; ilength < length; saddr++, ilength++, tmp_buf++) {
1871                 if (ilength == midpoint) {
1872                         WRT_REG_WORD(&reg->nvram, NVR_SELECT);
1873                         RD_REG_WORD(&reg->nvram);
1874                 }
1875                 data = qla2x00_read_flash_byte(ha, saddr);
1876                 if (saddr % 100)
1877                         udelay(10);
1878                 *tmp_buf = data;
1879                 cond_resched();
1880         }
1881 }
1882
1883 static inline void
1884 qla2x00_suspend_hba(struct scsi_qla_host *vha)
1885 {
1886         int cnt;
1887         unsigned long flags;
1888         struct qla_hw_data *ha = vha->hw;
1889         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1890
1891         /* Suspend HBA. */
1892         scsi_block_requests(vha->host);
1893         ha->isp_ops->disable_intrs(ha);
1894         set_bit(MBX_UPDATE_FLASH_ACTIVE, &ha->mbx_cmd_flags);
1895
1896         /* Pause RISC. */
1897         spin_lock_irqsave(&ha->hardware_lock, flags);
1898         WRT_REG_WORD(&reg->hccr, HCCR_PAUSE_RISC);
1899         RD_REG_WORD(&reg->hccr);
1900         if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
1901                 for (cnt = 0; cnt < 30000; cnt++) {
1902                         if ((RD_REG_WORD(&reg->hccr) & HCCR_RISC_PAUSE) != 0)
1903                                 break;
1904                         udelay(100);
1905                 }
1906         } else {
1907                 udelay(10);
1908         }
1909         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1910 }
1911
1912 static inline void
1913 qla2x00_resume_hba(struct scsi_qla_host *vha)
1914 {
1915         struct qla_hw_data *ha = vha->hw;
1916
1917         /* Resume HBA. */
1918         clear_bit(MBX_UPDATE_FLASH_ACTIVE, &ha->mbx_cmd_flags);
1919         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1920         qla2xxx_wake_dpc(vha);
1921         qla2x00_wait_for_hba_online(vha);
1922         scsi_unblock_requests(vha->host);
1923 }
1924
1925 uint8_t *
1926 qla2x00_read_optrom_data(struct scsi_qla_host *vha, uint8_t *buf,
1927     uint32_t offset, uint32_t length)
1928 {
1929         uint32_t addr, midpoint;
1930         uint8_t *data;
1931         struct qla_hw_data *ha = vha->hw;
1932         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1933
1934         /* Suspend HBA. */
1935         qla2x00_suspend_hba(vha);
1936
1937         /* Go with read. */
1938         midpoint = ha->optrom_size / 2;
1939
1940         qla2x00_flash_enable(ha);
1941         WRT_REG_WORD(&reg->nvram, 0);
1942         RD_REG_WORD(&reg->nvram);               /* PCI Posting. */
1943         for (addr = offset, data = buf; addr < length; addr++, data++) {
1944                 if (addr == midpoint) {
1945                         WRT_REG_WORD(&reg->nvram, NVR_SELECT);
1946                         RD_REG_WORD(&reg->nvram);       /* PCI Posting. */
1947                 }
1948
1949                 *data = qla2x00_read_flash_byte(ha, addr);
1950         }
1951         qla2x00_flash_disable(ha);
1952
1953         /* Resume HBA. */
1954         qla2x00_resume_hba(vha);
1955
1956         return buf;
1957 }
1958
1959 int
1960 qla2x00_write_optrom_data(struct scsi_qla_host *vha, uint8_t *buf,
1961     uint32_t offset, uint32_t length)
1962 {
1963
1964         int rval;
1965         uint8_t man_id, flash_id, sec_number, data;
1966         uint16_t wd;
1967         uint32_t addr, liter, sec_mask, rest_addr;
1968         struct qla_hw_data *ha = vha->hw;
1969         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1970
1971         /* Suspend HBA. */
1972         qla2x00_suspend_hba(vha);
1973
1974         rval = QLA_SUCCESS;
1975         sec_number = 0;
1976
1977         /* Reset ISP chip. */
1978         WRT_REG_WORD(&reg->ctrl_status, CSR_ISP_SOFT_RESET);
1979         pci_read_config_word(ha->pdev, PCI_COMMAND, &wd);
1980
1981         /* Go with write. */
1982         qla2x00_flash_enable(ha);
1983         do {    /* Loop once to provide quick error exit */
1984                 /* Structure of flash memory based on manufacturer */
1985                 if (IS_OEM_001(ha)) {
1986                         /* OEM variant with special flash part. */
1987                         man_id = flash_id = 0;
1988                         rest_addr = 0xffff;
1989                         sec_mask   = 0x10000;
1990                         goto update_flash;
1991                 }
1992                 qla2x00_get_flash_manufacturer(ha, &man_id, &flash_id);
1993                 switch (man_id) {
1994                 case 0x20: /* ST flash. */
1995                         if (flash_id == 0xd2 || flash_id == 0xe3) {
1996                                 /*
1997                                  * ST m29w008at part - 64kb sector size with
1998                                  * 32kb,8kb,8kb,16kb sectors at memory address
1999                                  * 0xf0000.
2000                                  */
2001                                 rest_addr = 0xffff;
2002                                 sec_mask = 0x10000;
2003                                 break;
2004                         }
2005                         /*
2006                          * ST m29w010b part - 16kb sector size
2007                          * Default to 16kb sectors
2008                          */
2009                         rest_addr = 0x3fff;
2010                         sec_mask = 0x1c000;
2011                         break;
2012                 case 0x40: /* Mostel flash. */
2013                         /* Mostel v29c51001 part - 512 byte sector size. */
2014                         rest_addr = 0x1ff;
2015                         sec_mask = 0x1fe00;
2016                         break;
2017                 case 0xbf: /* SST flash. */
2018                         /* SST39sf10 part - 4kb sector size. */
2019                         rest_addr = 0xfff;
2020                         sec_mask = 0x1f000;
2021                         break;
2022                 case 0xda: /* Winbond flash. */
2023                         /* Winbond W29EE011 part - 256 byte sector size. */
2024                         rest_addr = 0x7f;
2025                         sec_mask = 0x1ff80;
2026                         break;
2027                 case 0xc2: /* Macronix flash. */
2028                         /* 64k sector size. */
2029                         if (flash_id == 0x38 || flash_id == 0x4f) {
2030                                 rest_addr = 0xffff;
2031                                 sec_mask = 0x10000;
2032                                 break;
2033                         }
2034                         /* Fall through... */
2035
2036                 case 0x1f: /* Atmel flash. */
2037                         /* 512k sector size. */
2038                         if (flash_id == 0x13) {
2039                                 rest_addr = 0x7fffffff;
2040                                 sec_mask =   0x80000000;
2041                                 break;
2042                         }
2043                         /* Fall through... */
2044
2045                 case 0x01: /* AMD flash. */
2046                         if (flash_id == 0x38 || flash_id == 0x40 ||
2047                             flash_id == 0x4f) {
2048                                 /* Am29LV081 part - 64kb sector size. */
2049                                 /* Am29LV002BT part - 64kb sector size. */
2050                                 rest_addr = 0xffff;
2051                                 sec_mask = 0x10000;
2052                                 break;
2053                         } else if (flash_id == 0x3e) {
2054                                 /*
2055                                  * Am29LV008b part - 64kb sector size with
2056                                  * 32kb,8kb,8kb,16kb sector at memory address
2057                                  * h0xf0000.
2058                                  */
2059                                 rest_addr = 0xffff;
2060                                 sec_mask = 0x10000;
2061                                 break;
2062                         } else if (flash_id == 0x20 || flash_id == 0x6e) {
2063                                 /*
2064                                  * Am29LV010 part or AM29f010 - 16kb sector
2065                                  * size.
2066                                  */
2067                                 rest_addr = 0x3fff;
2068                                 sec_mask = 0x1c000;
2069                                 break;
2070                         } else if (flash_id == 0x6d) {
2071                                 /* Am29LV001 part - 8kb sector size. */
2072                                 rest_addr = 0x1fff;
2073                                 sec_mask = 0x1e000;
2074                                 break;
2075                         }
2076                 default:
2077                         /* Default to 16 kb sector size. */
2078                         rest_addr = 0x3fff;
2079                         sec_mask = 0x1c000;
2080                         break;
2081                 }
2082
2083 update_flash:
2084                 if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
2085                         if (qla2x00_erase_flash(ha, man_id, flash_id)) {
2086                                 rval = QLA_FUNCTION_FAILED;
2087                                 break;
2088                         }
2089                 }
2090
2091                 for (addr = offset, liter = 0; liter < length; liter++,
2092                     addr++) {
2093                         data = buf[liter];
2094                         /* Are we at the beginning of a sector? */
2095                         if ((addr & rest_addr) == 0) {
2096                                 if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
2097                                         if (addr >= 0x10000UL) {
2098                                                 if (((addr >> 12) & 0xf0) &&
2099                                                     ((man_id == 0x01 &&
2100                                                         flash_id == 0x3e) ||
2101                                                      (man_id == 0x20 &&
2102                                                          flash_id == 0xd2))) {
2103                                                         sec_number++;
2104                                                         if (sec_number == 1) {
2105                                                                 rest_addr =
2106                                                                     0x7fff;
2107                                                                 sec_mask =
2108                                                                     0x18000;
2109                                                         } else if (
2110                                                             sec_number == 2 ||
2111                                                             sec_number == 3) {
2112                                                                 rest_addr =
2113                                                                     0x1fff;
2114                                                                 sec_mask =
2115                                                                     0x1e000;
2116                                                         } else if (
2117                                                             sec_number == 4) {
2118                                                                 rest_addr =
2119                                                                     0x3fff;
2120                                                                 sec_mask =
2121                                                                     0x1c000;
2122                                                         }
2123                                                 }
2124                                         }
2125                                 } else if (addr == ha->optrom_size / 2) {
2126                                         WRT_REG_WORD(&reg->nvram, NVR_SELECT);
2127                                         RD_REG_WORD(&reg->nvram);
2128                                 }
2129
2130                                 if (flash_id == 0xda && man_id == 0xc1) {
2131                                         qla2x00_write_flash_byte(ha, 0x5555,
2132                                             0xaa);
2133                                         qla2x00_write_flash_byte(ha, 0x2aaa,
2134                                             0x55);
2135                                         qla2x00_write_flash_byte(ha, 0x5555,
2136                                             0xa0);
2137                                 } else if (!IS_QLA2322(ha) && !IS_QLA6322(ha)) {
2138                                         /* Then erase it */
2139                                         if (qla2x00_erase_flash_sector(ha,
2140                                             addr, sec_mask, man_id,
2141                                             flash_id)) {
2142                                                 rval = QLA_FUNCTION_FAILED;
2143                                                 break;
2144                                         }
2145                                         if (man_id == 0x01 && flash_id == 0x6d)
2146                                                 sec_number++;
2147                                 }
2148                         }
2149
2150                         if (man_id == 0x01 && flash_id == 0x6d) {
2151                                 if (sec_number == 1 &&
2152                                     addr == (rest_addr - 1)) {
2153                                         rest_addr = 0x0fff;
2154                                         sec_mask   = 0x1f000;
2155                                 } else if (sec_number == 3 && (addr & 0x7ffe)) {
2156                                         rest_addr = 0x3fff;
2157                                         sec_mask   = 0x1c000;
2158                                 }
2159                         }
2160
2161                         if (qla2x00_program_flash_address(ha, addr, data,
2162                             man_id, flash_id)) {
2163                                 rval = QLA_FUNCTION_FAILED;
2164                                 break;
2165                         }
2166                         cond_resched();
2167                 }
2168         } while (0);
2169         qla2x00_flash_disable(ha);
2170
2171         /* Resume HBA. */
2172         qla2x00_resume_hba(vha);
2173
2174         return rval;
2175 }
2176
2177 uint8_t *
2178 qla24xx_read_optrom_data(struct scsi_qla_host *vha, uint8_t *buf,
2179     uint32_t offset, uint32_t length)
2180 {
2181         struct qla_hw_data *ha = vha->hw;
2182
2183         /* Suspend HBA. */
2184         scsi_block_requests(vha->host);
2185         set_bit(MBX_UPDATE_FLASH_ACTIVE, &ha->mbx_cmd_flags);
2186
2187         /* Go with read. */
2188         qla24xx_read_flash_data(vha, (uint32_t *)buf, offset >> 2, length >> 2);
2189
2190         /* Resume HBA. */
2191         clear_bit(MBX_UPDATE_FLASH_ACTIVE, &ha->mbx_cmd_flags);
2192         scsi_unblock_requests(vha->host);
2193
2194         return buf;
2195 }
2196
2197 int
2198 qla24xx_write_optrom_data(struct scsi_qla_host *vha, uint8_t *buf,
2199     uint32_t offset, uint32_t length)
2200 {
2201         int rval;
2202         struct qla_hw_data *ha = vha->hw;
2203
2204         /* Suspend HBA. */
2205         scsi_block_requests(vha->host);
2206         set_bit(MBX_UPDATE_FLASH_ACTIVE, &ha->mbx_cmd_flags);
2207
2208         /* Go with write. */
2209         rval = qla24xx_write_flash_data(vha, (uint32_t *)buf, offset >> 2,
2210             length >> 2);
2211
2212         /* Resume HBA -- RISC reset needed. */
2213         clear_bit(MBX_UPDATE_FLASH_ACTIVE, &ha->mbx_cmd_flags);
2214         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2215         qla2xxx_wake_dpc(vha);
2216         qla2x00_wait_for_hba_online(vha);
2217         scsi_unblock_requests(vha->host);
2218
2219         return rval;
2220 }
2221
2222 uint8_t *
2223 qla25xx_read_optrom_data(struct scsi_qla_host *vha, uint8_t *buf,
2224     uint32_t offset, uint32_t length)
2225 {
2226         int rval;
2227         dma_addr_t optrom_dma;
2228         void *optrom;
2229         uint8_t *pbuf;
2230         uint32_t faddr, left, burst;
2231         struct qla_hw_data *ha = vha->hw;
2232
2233         if (offset & 0xfff)
2234                 goto slow_read;
2235         if (length < OPTROM_BURST_SIZE)
2236                 goto slow_read;
2237
2238         optrom = dma_alloc_coherent(&ha->pdev->dev, OPTROM_BURST_SIZE,
2239             &optrom_dma, GFP_KERNEL);
2240         if (!optrom) {
2241                 qla_printk(KERN_DEBUG, ha,
2242                     "Unable to allocate memory for optrom burst read "
2243                     "(%x KB).\n", OPTROM_BURST_SIZE / 1024);
2244
2245                 goto slow_read;
2246         }
2247
2248         pbuf = buf;
2249         faddr = offset >> 2;
2250         left = length >> 2;
2251         burst = OPTROM_BURST_DWORDS;
2252         while (left != 0) {
2253                 if (burst > left)
2254                         burst = left;
2255
2256                 rval = qla2x00_dump_ram(vha, optrom_dma,
2257                     flash_data_addr(ha, faddr), burst);
2258                 if (rval) {
2259                         qla_printk(KERN_WARNING, ha,
2260                             "Unable to burst-read optrom segment "
2261                             "(%x/%x/%llx).\n", rval,
2262                             flash_data_addr(ha, faddr),
2263                             (unsigned long long)optrom_dma);
2264                         qla_printk(KERN_WARNING, ha,
2265                             "Reverting to slow-read.\n");
2266
2267                         dma_free_coherent(&ha->pdev->dev, OPTROM_BURST_SIZE,
2268                             optrom, optrom_dma);
2269                         goto slow_read;
2270                 }
2271
2272                 memcpy(pbuf, optrom, burst * 4);
2273
2274                 left -= burst;
2275                 faddr += burst;
2276                 pbuf += burst * 4;
2277         }
2278
2279         dma_free_coherent(&ha->pdev->dev, OPTROM_BURST_SIZE, optrom,
2280             optrom_dma);
2281
2282         return buf;
2283
2284 slow_read:
2285     return qla24xx_read_optrom_data(vha, buf, offset, length);
2286 }
2287
2288 /**
2289  * qla2x00_get_fcode_version() - Determine an FCODE image's version.
2290  * @ha: HA context
2291  * @pcids: Pointer to the FCODE PCI data structure
2292  *
2293  * The process of retrieving the FCODE version information is at best
2294  * described as interesting.
2295  *
2296  * Within the first 100h bytes of the image an ASCII string is present
2297  * which contains several pieces of information including the FCODE
2298  * version.  Unfortunately it seems the only reliable way to retrieve
2299  * the version is by scanning for another sentinel within the string,
2300  * the FCODE build date:
2301  *
2302  *      ... 2.00.02 10/17/02 ...
2303  *
2304  * Returns QLA_SUCCESS on successful retrieval of version.
2305  */
2306 static void
2307 qla2x00_get_fcode_version(struct qla_hw_data *ha, uint32_t pcids)
2308 {
2309         int ret = QLA_FUNCTION_FAILED;
2310         uint32_t istart, iend, iter, vend;
2311         uint8_t do_next, rbyte, *vbyte;
2312
2313         memset(ha->fcode_revision, 0, sizeof(ha->fcode_revision));
2314
2315         /* Skip the PCI data structure. */
2316         istart = pcids +
2317             ((qla2x00_read_flash_byte(ha, pcids + 0x0B) << 8) |
2318                 qla2x00_read_flash_byte(ha, pcids + 0x0A));
2319         iend = istart + 0x100;
2320         do {
2321                 /* Scan for the sentinel date string...eeewww. */
2322                 do_next = 0;
2323                 iter = istart;
2324                 while ((iter < iend) && !do_next) {
2325                         iter++;
2326                         if (qla2x00_read_flash_byte(ha, iter) == '/') {
2327                                 if (qla2x00_read_flash_byte(ha, iter + 2) ==
2328                                     '/')
2329                                         do_next++;
2330                                 else if (qla2x00_read_flash_byte(ha,
2331                                     iter + 3) == '/')
2332                                         do_next++;
2333                         }
2334                 }
2335                 if (!do_next)
2336                         break;
2337
2338                 /* Backtrack to previous ' ' (space). */
2339                 do_next = 0;
2340                 while ((iter > istart) && !do_next) {
2341                         iter--;
2342                         if (qla2x00_read_flash_byte(ha, iter) == ' ')
2343                                 do_next++;
2344                 }
2345                 if (!do_next)
2346                         break;
2347
2348                 /*
2349                  * Mark end of version tag, and find previous ' ' (space) or
2350                  * string length (recent FCODE images -- major hack ahead!!!).
2351                  */
2352                 vend = iter - 1;
2353                 do_next = 0;
2354                 while ((iter > istart) && !do_next) {
2355                         iter--;
2356                         rbyte = qla2x00_read_flash_byte(ha, iter);
2357                         if (rbyte == ' ' || rbyte == 0xd || rbyte == 0x10)
2358                                 do_next++;
2359                 }
2360                 if (!do_next)
2361                         break;
2362
2363                 /* Mark beginning of version tag, and copy data. */
2364                 iter++;
2365                 if ((vend - iter) &&
2366                     ((vend - iter) < sizeof(ha->fcode_revision))) {
2367                         vbyte = ha->fcode_revision;
2368                         while (iter <= vend) {
2369                                 *vbyte++ = qla2x00_read_flash_byte(ha, iter);
2370                                 iter++;
2371                         }
2372                         ret = QLA_SUCCESS;
2373                 }
2374         } while (0);
2375
2376         if (ret != QLA_SUCCESS)
2377                 memset(ha->fcode_revision, 0, sizeof(ha->fcode_revision));
2378 }
2379
2380 int
2381 qla2x00_get_flash_version(scsi_qla_host_t *vha, void *mbuf)
2382 {
2383         int ret = QLA_SUCCESS;
2384         uint8_t code_type, last_image;
2385         uint32_t pcihdr, pcids;
2386         uint8_t *dbyte;
2387         uint16_t *dcode;
2388         struct qla_hw_data *ha = vha->hw;
2389
2390         if (!ha->pio_address || !mbuf)
2391                 return QLA_FUNCTION_FAILED;
2392
2393         memset(ha->bios_revision, 0, sizeof(ha->bios_revision));
2394         memset(ha->efi_revision, 0, sizeof(ha->efi_revision));
2395         memset(ha->fcode_revision, 0, sizeof(ha->fcode_revision));
2396         memset(ha->fw_revision, 0, sizeof(ha->fw_revision));
2397
2398         qla2x00_flash_enable(ha);
2399
2400         /* Begin with first PCI expansion ROM header. */
2401         pcihdr = 0;
2402         last_image = 1;
2403         do {
2404                 /* Verify PCI expansion ROM header. */
2405                 if (qla2x00_read_flash_byte(ha, pcihdr) != 0x55 ||
2406                     qla2x00_read_flash_byte(ha, pcihdr + 0x01) != 0xaa) {
2407                         /* No signature */
2408                         DEBUG2(qla_printk(KERN_DEBUG, ha, "No matching ROM "
2409                             "signature.\n"));
2410                         ret = QLA_FUNCTION_FAILED;
2411                         break;
2412                 }
2413
2414                 /* Locate PCI data structure. */
2415                 pcids = pcihdr +
2416                     ((qla2x00_read_flash_byte(ha, pcihdr + 0x19) << 8) |
2417                         qla2x00_read_flash_byte(ha, pcihdr + 0x18));
2418
2419                 /* Validate signature of PCI data structure. */
2420                 if (qla2x00_read_flash_byte(ha, pcids) != 'P' ||
2421                     qla2x00_read_flash_byte(ha, pcids + 0x1) != 'C' ||
2422                     qla2x00_read_flash_byte(ha, pcids + 0x2) != 'I' ||
2423                     qla2x00_read_flash_byte(ha, pcids + 0x3) != 'R') {
2424                         /* Incorrect header. */
2425                         DEBUG2(qla_printk(KERN_INFO, ha, "PCI data struct not "
2426                             "found pcir_adr=%x.\n", pcids));
2427                         ret = QLA_FUNCTION_FAILED;
2428                         break;
2429                 }
2430
2431                 /* Read version */
2432                 code_type = qla2x00_read_flash_byte(ha, pcids + 0x14);
2433                 switch (code_type) {
2434                 case ROM_CODE_TYPE_BIOS:
2435                         /* Intel x86, PC-AT compatible. */
2436                         ha->bios_revision[0] =
2437                             qla2x00_read_flash_byte(ha, pcids + 0x12);
2438                         ha->bios_revision[1] =
2439                             qla2x00_read_flash_byte(ha, pcids + 0x13);
2440                         DEBUG3(qla_printk(KERN_DEBUG, ha, "read BIOS %d.%d.\n",
2441                             ha->bios_revision[1], ha->bios_revision[0]));
2442                         break;
2443                 case ROM_CODE_TYPE_FCODE:
2444                         /* Open Firmware standard for PCI (FCode). */
2445                         /* Eeeewww... */
2446                         qla2x00_get_fcode_version(ha, pcids);
2447                         break;
2448                 case ROM_CODE_TYPE_EFI:
2449                         /* Extensible Firmware Interface (EFI). */
2450                         ha->efi_revision[0] =
2451                             qla2x00_read_flash_byte(ha, pcids + 0x12);
2452                         ha->efi_revision[1] =
2453                             qla2x00_read_flash_byte(ha, pcids + 0x13);
2454                         DEBUG3(qla_printk(KERN_DEBUG, ha, "read EFI %d.%d.\n",
2455                             ha->efi_revision[1], ha->efi_revision[0]));
2456                         break;
2457                 default:
2458                         DEBUG2(qla_printk(KERN_INFO, ha, "Unrecognized code "
2459                             "type %x at pcids %x.\n", code_type, pcids));
2460                         break;
2461                 }
2462
2463                 last_image = qla2x00_read_flash_byte(ha, pcids + 0x15) & BIT_7;
2464
2465                 /* Locate next PCI expansion ROM. */
2466                 pcihdr += ((qla2x00_read_flash_byte(ha, pcids + 0x11) << 8) |
2467                     qla2x00_read_flash_byte(ha, pcids + 0x10)) * 512;
2468         } while (!last_image);
2469
2470         if (IS_QLA2322(ha)) {
2471                 /* Read firmware image information. */
2472                 memset(ha->fw_revision, 0, sizeof(ha->fw_revision));
2473                 dbyte = mbuf;
2474                 memset(dbyte, 0, 8);
2475                 dcode = (uint16_t *)dbyte;
2476
2477                 qla2x00_read_flash_data(ha, dbyte, ha->flt_region_fw * 4 + 10,
2478                     8);
2479                 DEBUG3(qla_printk(KERN_DEBUG, ha, "dumping fw ver from "
2480                     "flash:\n"));
2481                 DEBUG3(qla2x00_dump_buffer((uint8_t *)dbyte, 8));
2482
2483                 if ((dcode[0] == 0xffff && dcode[1] == 0xffff &&
2484                     dcode[2] == 0xffff && dcode[3] == 0xffff) ||
2485                     (dcode[0] == 0 && dcode[1] == 0 && dcode[2] == 0 &&
2486                     dcode[3] == 0)) {
2487                         DEBUG2(qla_printk(KERN_INFO, ha, "Unrecognized fw "
2488                             "revision at %x.\n", ha->flt_region_fw * 4));
2489                 } else {
2490                         /* values are in big endian */
2491                         ha->fw_revision[0] = dbyte[0] << 16 | dbyte[1];
2492                         ha->fw_revision[1] = dbyte[2] << 16 | dbyte[3];
2493                         ha->fw_revision[2] = dbyte[4] << 16 | dbyte[5];
2494                 }
2495         }
2496
2497         qla2x00_flash_disable(ha);
2498
2499         return ret;
2500 }
2501
2502 int
2503 qla24xx_get_flash_version(scsi_qla_host_t *vha, void *mbuf)
2504 {
2505         int ret = QLA_SUCCESS;
2506         uint32_t pcihdr, pcids;
2507         uint32_t *dcode;
2508         uint8_t *bcode;
2509         uint8_t code_type, last_image;
2510         int i;
2511         struct qla_hw_data *ha = vha->hw;
2512
2513         if (!mbuf)
2514                 return QLA_FUNCTION_FAILED;
2515
2516         memset(ha->bios_revision, 0, sizeof(ha->bios_revision));
2517         memset(ha->efi_revision, 0, sizeof(ha->efi_revision));
2518         memset(ha->fcode_revision, 0, sizeof(ha->fcode_revision));
2519         memset(ha->fw_revision, 0, sizeof(ha->fw_revision));
2520
2521         dcode = mbuf;
2522
2523         /* Begin with first PCI expansion ROM header. */
2524         pcihdr = ha->flt_region_boot;
2525         last_image = 1;
2526         do {
2527                 /* Verify PCI expansion ROM header. */
2528                 qla24xx_read_flash_data(vha, dcode, pcihdr >> 2, 0x20);
2529                 bcode = mbuf + (pcihdr % 4);
2530                 if (bcode[0x0] != 0x55 || bcode[0x1] != 0xaa) {
2531                         /* No signature */
2532                         DEBUG2(qla_printk(KERN_DEBUG, ha, "No matching ROM "
2533                             "signature.\n"));
2534                         ret = QLA_FUNCTION_FAILED;
2535                         break;
2536                 }
2537
2538                 /* Locate PCI data structure. */
2539                 pcids = pcihdr + ((bcode[0x19] << 8) | bcode[0x18]);
2540
2541                 qla24xx_read_flash_data(vha, dcode, pcids >> 2, 0x20);
2542                 bcode = mbuf + (pcihdr % 4);
2543
2544                 /* Validate signature of PCI data structure. */
2545                 if (bcode[0x0] != 'P' || bcode[0x1] != 'C' ||
2546                     bcode[0x2] != 'I' || bcode[0x3] != 'R') {
2547                         /* Incorrect header. */
2548                         DEBUG2(qla_printk(KERN_INFO, ha, "PCI data struct not "
2549                             "found pcir_adr=%x.\n", pcids));
2550                         ret = QLA_FUNCTION_FAILED;
2551                         break;
2552                 }
2553
2554                 /* Read version */
2555                 code_type = bcode[0x14];
2556                 switch (code_type) {
2557                 case ROM_CODE_TYPE_BIOS:
2558                         /* Intel x86, PC-AT compatible. */
2559                         ha->bios_revision[0] = bcode[0x12];
2560                         ha->bios_revision[1] = bcode[0x13];
2561                         DEBUG3(qla_printk(KERN_DEBUG, ha, "read BIOS %d.%d.\n",
2562                             ha->bios_revision[1], ha->bios_revision[0]));
2563                         break;
2564                 case ROM_CODE_TYPE_FCODE:
2565                         /* Open Firmware standard for PCI (FCode). */
2566                         ha->fcode_revision[0] = bcode[0x12];
2567                         ha->fcode_revision[1] = bcode[0x13];
2568                         DEBUG3(qla_printk(KERN_DEBUG, ha, "read FCODE %d.%d.\n",
2569                             ha->fcode_revision[1], ha->fcode_revision[0]));
2570                         break;
2571                 case ROM_CODE_TYPE_EFI:
2572                         /* Extensible Firmware Interface (EFI). */
2573                         ha->efi_revision[0] = bcode[0x12];
2574                         ha->efi_revision[1] = bcode[0x13];
2575                         DEBUG3(qla_printk(KERN_DEBUG, ha, "read EFI %d.%d.\n",
2576                             ha->efi_revision[1], ha->efi_revision[0]));
2577                         break;
2578                 default:
2579                         DEBUG2(qla_printk(KERN_INFO, ha, "Unrecognized code "
2580                             "type %x at pcids %x.\n", code_type, pcids));
2581                         break;
2582                 }
2583
2584                 last_image = bcode[0x15] & BIT_7;
2585
2586                 /* Locate next PCI expansion ROM. */
2587                 pcihdr += ((bcode[0x11] << 8) | bcode[0x10]) * 512;
2588         } while (!last_image);
2589
2590         /* Read firmware image information. */
2591         memset(ha->fw_revision, 0, sizeof(ha->fw_revision));
2592         dcode = mbuf;
2593
2594         qla24xx_read_flash_data(vha, dcode, ha->flt_region_fw + 4, 4);
2595         for (i = 0; i < 4; i++)
2596                 dcode[i] = be32_to_cpu(dcode[i]);
2597
2598         if ((dcode[0] == 0xffffffff && dcode[1] == 0xffffffff &&
2599             dcode[2] == 0xffffffff && dcode[3] == 0xffffffff) ||
2600             (dcode[0] == 0 && dcode[1] == 0 && dcode[2] == 0 &&
2601             dcode[3] == 0)) {
2602                 DEBUG2(qla_printk(KERN_INFO, ha, "Unrecognized fw "
2603                     "revision at %x.\n", ha->flt_region_fw * 4));
2604         } else {
2605                 ha->fw_revision[0] = dcode[0];
2606                 ha->fw_revision[1] = dcode[1];
2607                 ha->fw_revision[2] = dcode[2];
2608                 ha->fw_revision[3] = dcode[3];
2609         }
2610
2611         return ret;
2612 }
2613
2614 static int
2615 qla2xxx_is_vpd_valid(uint8_t *pos, uint8_t *end)
2616 {
2617         if (pos >= end || *pos != 0x82)
2618                 return 0;
2619
2620         pos += 3 + pos[1];
2621         if (pos >= end || *pos != 0x90)
2622                 return 0;
2623
2624         pos += 3 + pos[1];
2625         if (pos >= end || *pos != 0x78)
2626                 return 0;
2627
2628         return 1;
2629 }
2630
2631 int
2632 qla2xxx_get_vpd_field(scsi_qla_host_t *vha, char *key, char *str, size_t size)
2633 {
2634         struct qla_hw_data *ha = vha->hw;
2635         uint8_t *pos = ha->vpd;
2636         uint8_t *end = pos + ha->vpd_size;
2637         int len = 0;
2638
2639         if (!IS_FWI2_CAPABLE(ha) || !qla2xxx_is_vpd_valid(pos, end))
2640                 return 0;
2641
2642         while (pos < end && *pos != 0x78) {
2643                 len = (*pos == 0x82) ? pos[1] : pos[2];
2644
2645                 if (!strncmp(pos, key, strlen(key)))
2646                         break;
2647
2648                 if (*pos != 0x90 && *pos != 0x91)
2649                         pos += len;
2650
2651                 pos += 3;
2652         }
2653
2654         if (pos < end - len && *pos != 0x78)
2655                 return snprintf(str, size, "%.*s", len, pos + 3);
2656
2657         return 0;
2658 }