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) & 0xff) {
 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, first clear SR protection bit */
 948         qla24xx_write_flash_dword(ha, flash_conf_addr(ha, 0x101), 0);
 949         /* Then write zero again to clear remaining SR 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;
 984         uint32_t sec_mask, rest_addr;
 985         uint32_t fdata;
 986         dma_addr_t optrom_dma;
 987         void *optrom = NULL;
 988         struct qla_hw_data *ha = vha->hw;
 989
 990         ret = QLA_SUCCESS;
 991
 992         /* Prepare burst-capable write on supported ISPs. */
 993         if ((IS_QLA25XX(ha) || IS_QLA81XX(ha)) && !(faddr & 0xfff) &&
 994             dwords > OPTROM_BURST_DWORDS) {
 995                 optrom = dma_alloc_coherent(&ha->pdev->dev, OPTROM_BURST_SIZE,
 996                     &optrom_dma, GFP_KERNEL);
 997                 if (!optrom) {
 998                         qla_printk(KERN_DEBUG, ha,
 999                             "Unable to allocate memory for optrom burst write "
1000                             "(%x KB).\n", OPTROM_BURST_SIZE / 1024);
1001                 }
1002         }
1003
1004         rest_addr = (ha->fdt_block_size >> 2) - 1;
1005         sec_mask = ~rest_addr;
1006
1007         qla24xx_unprotect_flash(ha);
1008
1009         for (liter = 0; liter < dwords; liter++, faddr++, dwptr++) {
1010                 fdata = (faddr & sec_mask) << 2;
1011
1012                 /* Are we at the beginning of a sector? */
1013                 if ((faddr & rest_addr) == 0) {
1014                         /* Do sector unprotect. */
1015                         if (ha->fdt_unprotect_sec_cmd)
1016                                 qla24xx_write_flash_dword(ha,
1017                                     ha->fdt_unprotect_sec_cmd,
1018                                     (fdata & 0xff00) | ((fdata << 16) &
1019                                     0xff0000) | ((fdata >> 16) & 0xff));
1020                         ret = qla24xx_write_flash_dword(ha, ha->fdt_erase_cmd,
1021                             (fdata & 0xff00) |((fdata << 16) &
1022                             0xff0000) | ((fdata >> 16) & 0xff));
1023                         if (ret != QLA_SUCCESS) {
1024                                 DEBUG9(qla_printk("Unable to erase sector: "
1025                                     "address=%x.\n", faddr));
1026                                 break;
1027                         }
1028                 }
1029
1030                 /* Go with burst-write. */
1031                 if (optrom && (liter + OPTROM_BURST_DWORDS) <= dwords) {
1032                         /* Copy data to DMA'ble buffer. */
1033                         memcpy(optrom, dwptr, OPTROM_BURST_SIZE);
1034
1035                         ret = qla2x00_load_ram(vha, optrom_dma,
1036                             flash_data_addr(ha, faddr),
1037                             OPTROM_BURST_DWORDS);
1038                         if (ret != QLA_SUCCESS) {
1039                                 qla_printk(KERN_WARNING, ha,
1040                                     "Unable to burst-write optrom segment "
1041                                     "(%x/%x/%llx).\n", ret,
1042                                     flash_data_addr(ha, faddr),
1043                                     (unsigned long long)optrom_dma);
1044                                 qla_printk(KERN_WARNING, ha,
1045                                     "Reverting to slow-write.\n");
1046
1047                                 dma_free_coherent(&ha->pdev->dev,
1048                                     OPTROM_BURST_SIZE, optrom, optrom_dma);
1049                                 optrom = NULL;
1050                         } else {
1051                                 liter += OPTROM_BURST_DWORDS - 1;
1052                                 faddr += OPTROM_BURST_DWORDS - 1;
1053                                 dwptr += OPTROM_BURST_DWORDS - 1;
1054                                 continue;
1055                         }
1056                 }
1057
1058                 ret = qla24xx_write_flash_dword(ha,
1059                     flash_data_addr(ha, faddr), cpu_to_le32(*dwptr));
1060                 if (ret != QLA_SUCCESS) {
1061                         DEBUG9(printk("%s(%ld) Unable to program flash "
1062                             "address=%x data=%x.\n", __func__,
1063                             vha->host_no, faddr, *dwptr));
1064                         break;
1065                 }
1066
1067                 /* Do sector protect. */
1068                 if (ha->fdt_unprotect_sec_cmd &&
1069                     ((faddr & rest_addr) == rest_addr))
1070                         qla24xx_write_flash_dword(ha,
1071                             ha->fdt_protect_sec_cmd,
1072                             (fdata & 0xff00) | ((fdata << 16) &
1073                             0xff0000) | ((fdata >> 16) & 0xff));
1074         }
1075
1076         qla24xx_protect_flash(ha);
1077
1078         if (optrom)
1079                 dma_free_coherent(&ha->pdev->dev,
1080                     OPTROM_BURST_SIZE, optrom, optrom_dma);
1081
1082         return ret;
1083 }
1084
1085 uint8_t *
1086 qla2x00_read_nvram_data(scsi_qla_host_t *vha, uint8_t *buf, uint32_t naddr,
1087     uint32_t bytes)
1088 {
1089         uint32_t i;
1090         uint16_t *wptr;
1091         struct qla_hw_data *ha = vha->hw;
1092
1093         /* Word reads to NVRAM via registers. */
1094         wptr = (uint16_t *)buf;
1095         qla2x00_lock_nvram_access(ha);
1096         for (i = 0; i < bytes >> 1; i++, naddr++)
1097                 wptr[i] = cpu_to_le16(qla2x00_get_nvram_word(ha,
1098                     naddr));
1099         qla2x00_unlock_nvram_access(ha);
1100
1101         return buf;
1102 }
1103
1104 uint8_t *
1105 qla24xx_read_nvram_data(scsi_qla_host_t *vha, uint8_t *buf, uint32_t naddr,
1106     uint32_t bytes)
1107 {
1108         uint32_t i;
1109         uint32_t *dwptr;
1110         struct qla_hw_data *ha = vha->hw;
1111
1112         /* Dword reads to flash. */
1113         dwptr = (uint32_t *)buf;
1114         for (i = 0; i < bytes >> 2; i++, naddr++)
1115                 dwptr[i] = cpu_to_le32(qla24xx_read_flash_dword(ha,
1116                     nvram_data_addr(ha, naddr)));
1117
1118         return buf;
1119 }
1120
1121 int
1122 qla2x00_write_nvram_data(scsi_qla_host_t *vha, uint8_t *buf, uint32_t naddr,
1123     uint32_t bytes)
1124 {
1125         int ret, stat;
1126         uint32_t i;
1127         uint16_t *wptr;
1128         unsigned long flags;
1129         struct qla_hw_data *ha = vha->hw;
1130
1131         ret = QLA_SUCCESS;
1132
1133         spin_lock_irqsave(&ha->hardware_lock, flags);
1134         qla2x00_lock_nvram_access(ha);
1135
1136         /* Disable NVRAM write-protection. */
1137         stat = qla2x00_clear_nvram_protection(ha);
1138
1139         wptr = (uint16_t *)buf;
1140         for (i = 0; i < bytes >> 1; i++, naddr++) {
1141                 qla2x00_write_nvram_word(ha, naddr,
1142                     cpu_to_le16(*wptr));
1143                 wptr++;
1144         }
1145
1146         /* Enable NVRAM write-protection. */
1147         qla2x00_set_nvram_protection(ha, stat);
1148
1149         qla2x00_unlock_nvram_access(ha);
1150         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1151
1152         return ret;
1153 }
1154
1155 int
1156 qla24xx_write_nvram_data(scsi_qla_host_t *vha, uint8_t *buf, uint32_t naddr,
1157     uint32_t bytes)
1158 {
1159         int ret;
1160         uint32_t i;
1161         uint32_t *dwptr;
1162         struct qla_hw_data *ha = vha->hw;
1163         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1164
1165         ret = QLA_SUCCESS;
1166
1167         /* Enable flash write. */
1168         WRT_REG_DWORD(&reg->ctrl_status,
1169             RD_REG_DWORD(&reg->ctrl_status) | CSRX_FLASH_ENABLE);
1170         RD_REG_DWORD(&reg->ctrl_status);        /* PCI Posting. */
1171
1172         /* Disable NVRAM write-protection. */
1173         qla24xx_write_flash_dword(ha, nvram_conf_addr(ha, 0x101), 0);
1174         qla24xx_write_flash_dword(ha, nvram_conf_addr(ha, 0x101), 0);
1175
1176         /* Dword writes to flash. */
1177         dwptr = (uint32_t *)buf;
1178         for (i = 0; i < bytes >> 2; i++, naddr++, dwptr++) {
1179                 ret = qla24xx_write_flash_dword(ha,
1180                     nvram_data_addr(ha, naddr), cpu_to_le32(*dwptr));
1181                 if (ret != QLA_SUCCESS) {
1182                         DEBUG9(qla_printk("Unable to program nvram address=%x "
1183                             "data=%x.\n", naddr, *dwptr));
1184                         break;
1185                 }
1186         }
1187
1188         /* Enable NVRAM write-protection. */
1189         qla24xx_write_flash_dword(ha, nvram_conf_addr(ha, 0x101), 0x8c);
1190
1191         /* Disable flash write. */
1192         WRT_REG_DWORD(&reg->ctrl_status,
1193             RD_REG_DWORD(&reg->ctrl_status) & ~CSRX_FLASH_ENABLE);
1194         RD_REG_DWORD(&reg->ctrl_status);        /* PCI Posting. */
1195
1196         return ret;
1197 }
1198
1199 uint8_t *
1200 qla25xx_read_nvram_data(scsi_qla_host_t *vha, uint8_t *buf, uint32_t naddr,
1201     uint32_t bytes)
1202 {
1203         uint32_t i;
1204         uint32_t *dwptr;
1205         struct qla_hw_data *ha = vha->hw;
1206
1207         /* Dword reads to flash. */
1208         dwptr = (uint32_t *)buf;
1209         for (i = 0; i < bytes >> 2; i++, naddr++)
1210                 dwptr[i] = cpu_to_le32(qla24xx_read_flash_dword(ha,
1211                     flash_data_addr(ha, ha->flt_region_vpd_nvram | naddr)));
1212
1213         return buf;
1214 }
1215
1216 int
1217 qla25xx_write_nvram_data(scsi_qla_host_t *vha, uint8_t *buf, uint32_t naddr,
1218     uint32_t bytes)
1219 {
1220         struct qla_hw_data *ha = vha->hw;
1221 #define RMW_BUFFER_SIZE (64 * 1024)
1222         uint8_t *dbuf;
1223
1224         dbuf = vmalloc(RMW_BUFFER_SIZE);
1225         if (!dbuf)
1226                 return QLA_MEMORY_ALLOC_FAILED;
1227         ha->isp_ops->read_optrom(vha, dbuf, ha->flt_region_vpd_nvram << 2,
1228             RMW_BUFFER_SIZE);
1229         memcpy(dbuf + (naddr << 2), buf, bytes);
1230         ha->isp_ops->write_optrom(vha, dbuf, ha->flt_region_vpd_nvram << 2,
1231             RMW_BUFFER_SIZE);
1232         vfree(dbuf);
1233
1234         return QLA_SUCCESS;
1235 }
1236
1237 static inline void
1238 qla2x00_flip_colors(struct qla_hw_data *ha, uint16_t *pflags)
1239 {
1240         if (IS_QLA2322(ha)) {
1241                 /* Flip all colors. */
1242                 if (ha->beacon_color_state == QLA_LED_ALL_ON) {
1243                         /* Turn off. */
1244                         ha->beacon_color_state = 0;
1245                         *pflags = GPIO_LED_ALL_OFF;
1246                 } else {
1247                         /* Turn on. */
1248                         ha->beacon_color_state = QLA_LED_ALL_ON;
1249                         *pflags = GPIO_LED_RGA_ON;
1250                 }
1251         } else {
1252                 /* Flip green led only. */
1253                 if (ha->beacon_color_state == QLA_LED_GRN_ON) {
1254                         /* Turn off. */
1255                         ha->beacon_color_state = 0;
1256                         *pflags = GPIO_LED_GREEN_OFF_AMBER_OFF;
1257                 } else {
1258                         /* Turn on. */
1259                         ha->beacon_color_state = QLA_LED_GRN_ON;
1260                         *pflags = GPIO_LED_GREEN_ON_AMBER_OFF;
1261                 }
1262         }
1263 }
1264
1265 #define PIO_REG(h, r) ((h)->pio_address + offsetof(struct device_reg_2xxx, r))
1266
1267 void
1268 qla2x00_beacon_blink(struct scsi_qla_host *vha)
1269 {
1270         uint16_t gpio_enable;
1271         uint16_t gpio_data;
1272         uint16_t led_color = 0;
1273         unsigned long flags;
1274         struct qla_hw_data *ha = vha->hw;
1275         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1276
1277         spin_lock_irqsave(&ha->hardware_lock, flags);
1278
1279         /* Save the Original GPIOE. */
1280         if (ha->pio_address) {
1281                 gpio_enable = RD_REG_WORD_PIO(PIO_REG(ha, gpioe));
1282                 gpio_data = RD_REG_WORD_PIO(PIO_REG(ha, gpiod));
1283         } else {
1284                 gpio_enable = RD_REG_WORD(&reg->gpioe);
1285                 gpio_data = RD_REG_WORD(&reg->gpiod);
1286         }
1287
1288         /* Set the modified gpio_enable values */
1289         gpio_enable |= GPIO_LED_MASK;
1290
1291         if (ha->pio_address) {
1292                 WRT_REG_WORD_PIO(PIO_REG(ha, gpioe), gpio_enable);
1293         } else {
1294                 WRT_REG_WORD(&reg->gpioe, gpio_enable);
1295                 RD_REG_WORD(&reg->gpioe);
1296         }
1297
1298         qla2x00_flip_colors(ha, &led_color);
1299
1300         /* Clear out any previously set LED color. */
1301         gpio_data &= ~GPIO_LED_MASK;
1302
1303         /* Set the new input LED color to GPIOD. */
1304         gpio_data |= led_color;
1305
1306         /* Set the modified gpio_data values */
1307         if (ha->pio_address) {
1308                 WRT_REG_WORD_PIO(PIO_REG(ha, gpiod), gpio_data);
1309         } else {
1310                 WRT_REG_WORD(&reg->gpiod, gpio_data);
1311                 RD_REG_WORD(&reg->gpiod);
1312         }
1313
1314         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1315 }
1316
1317 int
1318 qla2x00_beacon_on(struct scsi_qla_host *vha)
1319 {
1320         uint16_t gpio_enable;
1321         uint16_t gpio_data;
1322         unsigned long flags;
1323         struct qla_hw_data *ha = vha->hw;
1324         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1325
1326         ha->fw_options[1] &= ~FO1_SET_EMPHASIS_SWING;
1327         ha->fw_options[1] |= FO1_DISABLE_GPIO6_7;
1328
1329         if (qla2x00_set_fw_options(vha, ha->fw_options) != QLA_SUCCESS) {
1330                 qla_printk(KERN_WARNING, ha,
1331                     "Unable to update fw options (beacon on).\n");
1332                 return QLA_FUNCTION_FAILED;
1333         }
1334
1335         /* Turn off LEDs. */
1336         spin_lock_irqsave(&ha->hardware_lock, flags);
1337         if (ha->pio_address) {
1338                 gpio_enable = RD_REG_WORD_PIO(PIO_REG(ha, gpioe));
1339                 gpio_data = RD_REG_WORD_PIO(PIO_REG(ha, gpiod));
1340         } else {
1341                 gpio_enable = RD_REG_WORD(&reg->gpioe);
1342                 gpio_data = RD_REG_WORD(&reg->gpiod);
1343         }
1344         gpio_enable |= GPIO_LED_MASK;
1345
1346         /* Set the modified gpio_enable values. */
1347         if (ha->pio_address) {
1348                 WRT_REG_WORD_PIO(PIO_REG(ha, gpioe), gpio_enable);
1349         } else {
1350                 WRT_REG_WORD(&reg->gpioe, gpio_enable);
1351                 RD_REG_WORD(&reg->gpioe);
1352         }
1353
1354         /* Clear out previously set LED colour. */
1355         gpio_data &= ~GPIO_LED_MASK;
1356         if (ha->pio_address) {
1357                 WRT_REG_WORD_PIO(PIO_REG(ha, gpiod), gpio_data);
1358         } else {
1359                 WRT_REG_WORD(&reg->gpiod, gpio_data);
1360                 RD_REG_WORD(&reg->gpiod);
1361         }
1362         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1363
1364         /*
1365          * Let the per HBA timer kick off the blinking process based on
1366          * the following flags. No need to do anything else now.
1367          */
1368         ha->beacon_blink_led = 1;
1369         ha->beacon_color_state = 0;
1370
1371         return QLA_SUCCESS;
1372 }
1373
1374 int
1375 qla2x00_beacon_off(struct scsi_qla_host *vha)
1376 {
1377         int rval = QLA_SUCCESS;
1378         struct qla_hw_data *ha = vha->hw;
1379
1380         ha->beacon_blink_led = 0;
1381
1382         /* Set the on flag so when it gets flipped it will be off. */
1383         if (IS_QLA2322(ha))
1384                 ha->beacon_color_state = QLA_LED_ALL_ON;
1385         else
1386                 ha->beacon_color_state = QLA_LED_GRN_ON;
1387
1388         ha->isp_ops->beacon_blink(vha); /* This turns green LED off */
1389
1390         ha->fw_options[1] &= ~FO1_SET_EMPHASIS_SWING;
1391         ha->fw_options[1] &= ~FO1_DISABLE_GPIO6_7;
1392
1393         rval = qla2x00_set_fw_options(vha, ha->fw_options);
1394         if (rval != QLA_SUCCESS)
1395                 qla_printk(KERN_WARNING, ha,
1396                     "Unable to update fw options (beacon off).\n");
1397         return rval;
1398 }
1399
1400
1401 static inline void
1402 qla24xx_flip_colors(struct qla_hw_data *ha, uint16_t *pflags)
1403 {
1404         /* Flip all colors. */
1405         if (ha->beacon_color_state == QLA_LED_ALL_ON) {
1406                 /* Turn off. */
1407                 ha->beacon_color_state = 0;
1408                 *pflags = 0;
1409         } else {
1410                 /* Turn on. */
1411                 ha->beacon_color_state = QLA_LED_ALL_ON;
1412                 *pflags = GPDX_LED_YELLOW_ON | GPDX_LED_AMBER_ON;
1413         }
1414 }
1415
1416 void
1417 qla24xx_beacon_blink(struct scsi_qla_host *vha)
1418 {
1419         uint16_t led_color = 0;
1420         uint32_t gpio_data;
1421         unsigned long flags;
1422         struct qla_hw_data *ha = vha->hw;
1423         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1424
1425         /* Save the Original GPIOD. */
1426         spin_lock_irqsave(&ha->hardware_lock, flags);
1427         gpio_data = RD_REG_DWORD(&reg->gpiod);
1428
1429         /* Enable the gpio_data reg for update. */
1430         gpio_data |= GPDX_LED_UPDATE_MASK;
1431
1432         WRT_REG_DWORD(&reg->gpiod, gpio_data);
1433         gpio_data = RD_REG_DWORD(&reg->gpiod);
1434
1435         /* Set the color bits. */
1436         qla24xx_flip_colors(ha, &led_color);
1437
1438         /* Clear out any previously set LED color. */
1439         gpio_data &= ~GPDX_LED_COLOR_MASK;
1440
1441         /* Set the new input LED color to GPIOD. */
1442         gpio_data |= led_color;
1443
1444         /* Set the modified gpio_data values. */
1445         WRT_REG_DWORD(&reg->gpiod, gpio_data);
1446         gpio_data = RD_REG_DWORD(&reg->gpiod);
1447         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1448 }
1449
1450 int
1451 qla24xx_beacon_on(struct scsi_qla_host *vha)
1452 {
1453         uint32_t gpio_data;
1454         unsigned long flags;
1455         struct qla_hw_data *ha = vha->hw;
1456         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1457
1458         if (ha->beacon_blink_led == 0) {
1459                 /* Enable firmware for update */
1460                 ha->fw_options[1] |= ADD_FO1_DISABLE_GPIO_LED_CTRL;
1461
1462                 if (qla2x00_set_fw_options(vha, ha->fw_options) != QLA_SUCCESS)
1463                         return QLA_FUNCTION_FAILED;
1464
1465                 if (qla2x00_get_fw_options(vha, ha->fw_options) !=
1466                     QLA_SUCCESS) {
1467                         qla_printk(KERN_WARNING, ha,
1468                             "Unable to update fw options (beacon on).\n");
1469                         return QLA_FUNCTION_FAILED;
1470                 }
1471
1472                 spin_lock_irqsave(&ha->hardware_lock, flags);
1473                 gpio_data = RD_REG_DWORD(&reg->gpiod);
1474
1475                 /* Enable the gpio_data reg for update. */
1476                 gpio_data |= GPDX_LED_UPDATE_MASK;
1477                 WRT_REG_DWORD(&reg->gpiod, gpio_data);
1478                 RD_REG_DWORD(&reg->gpiod);
1479
1480                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1481         }
1482
1483         /* So all colors blink together. */
1484         ha->beacon_color_state = 0;
1485
1486         /* Let the per HBA timer kick off the blinking process. */
1487         ha->beacon_blink_led = 1;
1488
1489         return QLA_SUCCESS;
1490 }
1491
1492 int
1493 qla24xx_beacon_off(struct scsi_qla_host *vha)
1494 {
1495         uint32_t gpio_data;
1496         unsigned long flags;
1497         struct qla_hw_data *ha = vha->hw;
1498         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1499
1500         ha->beacon_blink_led = 0;
1501         ha->beacon_color_state = QLA_LED_ALL_ON;
1502
1503         ha->isp_ops->beacon_blink(vha); /* Will flip to all off. */
1504
1505         /* Give control back to firmware. */
1506         spin_lock_irqsave(&ha->hardware_lock, flags);
1507         gpio_data = RD_REG_DWORD(&reg->gpiod);
1508
1509         /* Disable the gpio_data reg for update. */
1510         gpio_data &= ~GPDX_LED_UPDATE_MASK;
1511         WRT_REG_DWORD(&reg->gpiod, gpio_data);
1512         RD_REG_DWORD(&reg->gpiod);
1513         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1514
1515         ha->fw_options[1] &= ~ADD_FO1_DISABLE_GPIO_LED_CTRL;
1516
1517         if (qla2x00_set_fw_options(vha, ha->fw_options) != QLA_SUCCESS) {
1518                 qla_printk(KERN_WARNING, ha,
1519                     "Unable to update fw options (beacon off).\n");
1520                 return QLA_FUNCTION_FAILED;
1521         }
1522
1523         if (qla2x00_get_fw_options(vha, ha->fw_options) != QLA_SUCCESS) {
1524                 qla_printk(KERN_WARNING, ha,
1525                     "Unable to get fw options (beacon off).\n");
1526                 return QLA_FUNCTION_FAILED;
1527         }
1528
1529         return QLA_SUCCESS;
1530 }
1531
1532
1533 /*
1534  * Flash support routines
1535  */
1536
1537 /**
1538  * qla2x00_flash_enable() - Setup flash for reading and writing.
1539  * @ha: HA context
1540  */
1541 static void
1542 qla2x00_flash_enable(struct qla_hw_data *ha)
1543 {
1544         uint16_t data;
1545         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1546
1547         data = RD_REG_WORD(&reg->ctrl_status);
1548         data |= CSR_FLASH_ENABLE;
1549         WRT_REG_WORD(&reg->ctrl_status, data);
1550         RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
1551 }
1552
1553 /**
1554  * qla2x00_flash_disable() - Disable flash and allow RISC to run.
1555  * @ha: HA context
1556  */
1557 static void
1558 qla2x00_flash_disable(struct qla_hw_data *ha)
1559 {
1560         uint16_t data;
1561         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1562
1563         data = RD_REG_WORD(&reg->ctrl_status);
1564         data &= ~(CSR_FLASH_ENABLE);
1565         WRT_REG_WORD(&reg->ctrl_status, data);
1566         RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
1567 }
1568
1569 /**
1570  * qla2x00_read_flash_byte() - Reads a byte from flash
1571  * @ha: HA context
1572  * @addr: Address in flash to read
1573  *
1574  * A word is read from the chip, but, only the lower byte is valid.
1575  *
1576  * Returns the byte read from flash @addr.
1577  */
1578 static uint8_t
1579 qla2x00_read_flash_byte(struct qla_hw_data *ha, uint32_t addr)
1580 {
1581         uint16_t data;
1582         uint16_t bank_select;
1583         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1584
1585         bank_select = RD_REG_WORD(&reg->ctrl_status);
1586
1587         if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
1588                 /* Specify 64K address range: */
1589                 /*  clear out Module Select and Flash Address bits [19:16]. */
1590                 bank_select &= ~0xf8;
1591                 bank_select |= addr >> 12 & 0xf0;
1592                 bank_select |= CSR_FLASH_64K_BANK;
1593                 WRT_REG_WORD(&reg->ctrl_status, bank_select);
1594                 RD_REG_WORD(&reg->ctrl_status); /* PCI Posting. */
1595
1596                 WRT_REG_WORD(&reg->flash_address, (uint16_t)addr);
1597                 data = RD_REG_WORD(&reg->flash_data);
1598
1599                 return (uint8_t)data;
1600         }
1601
1602         /* Setup bit 16 of flash address. */
1603         if ((addr & BIT_16) && ((bank_select & CSR_FLASH_64K_BANK) == 0)) {
1604                 bank_select |= CSR_FLASH_64K_BANK;
1605                 WRT_REG_WORD(&reg->ctrl_status, bank_select);
1606                 RD_REG_WORD(&reg->ctrl_status); /* PCI Posting. */
1607         } else if (((addr & BIT_16) == 0) &&
1608             (bank_select & CSR_FLASH_64K_BANK)) {
1609                 bank_select &= ~(CSR_FLASH_64K_BANK);
1610                 WRT_REG_WORD(&reg->ctrl_status, bank_select);
1611                 RD_REG_WORD(&reg->ctrl_status); /* PCI Posting. */
1612         }
1613
1614         /* Always perform IO mapped accesses to the FLASH registers. */
1615         if (ha->pio_address) {
1616                 uint16_t data2;
1617
1618                 WRT_REG_WORD_PIO(PIO_REG(ha, flash_address), (uint16_t)addr);
1619                 do {
1620                         data = RD_REG_WORD_PIO(PIO_REG(ha, flash_data));
1621                         barrier();
1622                         cpu_relax();
1623                         data2 = RD_REG_WORD_PIO(PIO_REG(ha, flash_data));
1624                 } while (data != data2);
1625         } else {
1626                 WRT_REG_WORD(&reg->flash_address, (uint16_t)addr);
1627                 data = qla2x00_debounce_register(&reg->flash_data);
1628         }
1629
1630         return (uint8_t)data;
1631 }
1632
1633 /**
1634  * qla2x00_write_flash_byte() - Write a byte to flash
1635  * @ha: HA context
1636  * @addr: Address in flash to write
1637  * @data: Data to write
1638  */
1639 static void
1640 qla2x00_write_flash_byte(struct qla_hw_data *ha, uint32_t addr, uint8_t data)
1641 {
1642         uint16_t bank_select;
1643         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1644
1645         bank_select = RD_REG_WORD(&reg->ctrl_status);
1646         if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
1647                 /* Specify 64K address range: */
1648                 /*  clear out Module Select and Flash Address bits [19:16]. */
1649                 bank_select &= ~0xf8;
1650                 bank_select |= addr >> 12 & 0xf0;
1651                 bank_select |= CSR_FLASH_64K_BANK;
1652                 WRT_REG_WORD(&reg->ctrl_status, bank_select);
1653                 RD_REG_WORD(&reg->ctrl_status); /* PCI Posting. */
1654
1655                 WRT_REG_WORD(&reg->flash_address, (uint16_t)addr);
1656                 RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
1657                 WRT_REG_WORD(&reg->flash_data, (uint16_t)data);
1658                 RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
1659
1660                 return;
1661         }
1662
1663         /* Setup bit 16 of flash address. */
1664         if ((addr & BIT_16) && ((bank_select & CSR_FLASH_64K_BANK) == 0)) {
1665                 bank_select |= CSR_FLASH_64K_BANK;
1666                 WRT_REG_WORD(&reg->ctrl_status, bank_select);
1667                 RD_REG_WORD(&reg->ctrl_status); /* PCI Posting. */
1668         } else if (((addr & BIT_16) == 0) &&
1669             (bank_select & CSR_FLASH_64K_BANK)) {
1670                 bank_select &= ~(CSR_FLASH_64K_BANK);
1671                 WRT_REG_WORD(&reg->ctrl_status, bank_select);
1672                 RD_REG_WORD(&reg->ctrl_status); /* PCI Posting. */
1673         }
1674
1675         /* Always perform IO mapped accesses to the FLASH registers. */
1676         if (ha->pio_address) {
1677                 WRT_REG_WORD_PIO(PIO_REG(ha, flash_address), (uint16_t)addr);
1678                 WRT_REG_WORD_PIO(PIO_REG(ha, flash_data), (uint16_t)data);
1679         } else {
1680                 WRT_REG_WORD(&reg->flash_address, (uint16_t)addr);
1681                 RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
1682                 WRT_REG_WORD(&reg->flash_data, (uint16_t)data);
1683                 RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
1684         }
1685 }
1686
1687 /**
1688  * qla2x00_poll_flash() - Polls flash for completion.
1689  * @ha: HA context
1690  * @addr: Address in flash to poll
1691  * @poll_data: Data to be polled
1692  * @man_id: Flash manufacturer ID
1693  * @flash_id: Flash ID
1694  *
1695  * This function polls the device until bit 7 of what is read matches data
1696  * bit 7 or until data bit 5 becomes a 1.  If that hapens, the flash ROM timed
1697  * out (a fatal error).  The flash book recommeds reading bit 7 again after
1698  * reading bit 5 as a 1.
1699  *
1700  * Returns 0 on success, else non-zero.
1701  */
1702 static int
1703 qla2x00_poll_flash(struct qla_hw_data *ha, uint32_t addr, uint8_t poll_data,
1704     uint8_t man_id, uint8_t flash_id)
1705 {
1706         int status;
1707         uint8_t flash_data;
1708         uint32_t cnt;
1709
1710         status = 1;
1711
1712         /* Wait for 30 seconds for command to finish. */
1713         poll_data &= BIT_7;
1714         for (cnt = 3000000; cnt; cnt--) {
1715                 flash_data = qla2x00_read_flash_byte(ha, addr);
1716                 if ((flash_data & BIT_7) == poll_data) {
1717                         status = 0;
1718                         break;
1719                 }
1720
1721                 if (man_id != 0x40 && man_id != 0xda) {
1722                         if ((flash_data & BIT_5) && cnt > 2)
1723                                 cnt = 2;
1724                 }
1725                 udelay(10);
1726                 barrier();
1727                 cond_resched();
1728         }
1729         return status;
1730 }
1731
1732 /**
1733  * qla2x00_program_flash_address() - Programs a flash address
1734  * @ha: HA context
1735  * @addr: Address in flash to program
1736  * @data: Data to be written in flash
1737  * @man_id: Flash manufacturer ID
1738  * @flash_id: Flash ID
1739  *
1740  * Returns 0 on success, else non-zero.
1741  */
1742 static int
1743 qla2x00_program_flash_address(struct qla_hw_data *ha, uint32_t addr,
1744     uint8_t data, uint8_t man_id, uint8_t flash_id)
1745 {
1746         /* Write Program Command Sequence. */
1747         if (IS_OEM_001(ha)) {
1748                 qla2x00_write_flash_byte(ha, 0xaaa, 0xaa);
1749                 qla2x00_write_flash_byte(ha, 0x555, 0x55);
1750                 qla2x00_write_flash_byte(ha, 0xaaa, 0xa0);
1751                 qla2x00_write_flash_byte(ha, addr, data);
1752         } else {
1753                 if (man_id == 0xda && flash_id == 0xc1) {
1754                         qla2x00_write_flash_byte(ha, addr, data);
1755                         if (addr & 0x7e)
1756                                 return 0;
1757                 } else {
1758                         qla2x00_write_flash_byte(ha, 0x5555, 0xaa);
1759                         qla2x00_write_flash_byte(ha, 0x2aaa, 0x55);
1760                         qla2x00_write_flash_byte(ha, 0x5555, 0xa0);
1761                         qla2x00_write_flash_byte(ha, addr, data);
1762                 }
1763         }
1764
1765         udelay(150);
1766
1767         /* Wait for write to complete. */
1768         return qla2x00_poll_flash(ha, addr, data, man_id, flash_id);
1769 }
1770
1771 /**
1772  * qla2x00_erase_flash() - Erase the flash.
1773  * @ha: HA context
1774  * @man_id: Flash manufacturer ID
1775  * @flash_id: Flash ID
1776  *
1777  * Returns 0 on success, else non-zero.
1778  */
1779 static int
1780 qla2x00_erase_flash(struct qla_hw_data *ha, uint8_t man_id, uint8_t flash_id)
1781 {
1782         /* Individual Sector Erase Command Sequence */
1783         if (IS_OEM_001(ha)) {
1784                 qla2x00_write_flash_byte(ha, 0xaaa, 0xaa);
1785                 qla2x00_write_flash_byte(ha, 0x555, 0x55);
1786                 qla2x00_write_flash_byte(ha, 0xaaa, 0x80);
1787                 qla2x00_write_flash_byte(ha, 0xaaa, 0xaa);
1788                 qla2x00_write_flash_byte(ha, 0x555, 0x55);
1789                 qla2x00_write_flash_byte(ha, 0xaaa, 0x10);
1790         } else {
1791                 qla2x00_write_flash_byte(ha, 0x5555, 0xaa);
1792                 qla2x00_write_flash_byte(ha, 0x2aaa, 0x55);
1793                 qla2x00_write_flash_byte(ha, 0x5555, 0x80);
1794                 qla2x00_write_flash_byte(ha, 0x5555, 0xaa);
1795                 qla2x00_write_flash_byte(ha, 0x2aaa, 0x55);
1796                 qla2x00_write_flash_byte(ha, 0x5555, 0x10);
1797         }
1798
1799         udelay(150);
1800
1801         /* Wait for erase to complete. */
1802         return qla2x00_poll_flash(ha, 0x00, 0x80, man_id, flash_id);
1803 }
1804
1805 /**
1806  * qla2x00_erase_flash_sector() - Erase a flash sector.
1807  * @ha: HA context
1808  * @addr: Flash sector to erase
1809  * @sec_mask: Sector address mask
1810  * @man_id: Flash manufacturer ID
1811  * @flash_id: Flash ID
1812  *
1813  * Returns 0 on success, else non-zero.
1814  */
1815 static int
1816 qla2x00_erase_flash_sector(struct qla_hw_data *ha, uint32_t addr,
1817     uint32_t sec_mask, uint8_t man_id, uint8_t flash_id)
1818 {
1819         /* Individual Sector Erase Command Sequence */
1820         qla2x00_write_flash_byte(ha, 0x5555, 0xaa);
1821         qla2x00_write_flash_byte(ha, 0x2aaa, 0x55);
1822         qla2x00_write_flash_byte(ha, 0x5555, 0x80);
1823         qla2x00_write_flash_byte(ha, 0x5555, 0xaa);
1824         qla2x00_write_flash_byte(ha, 0x2aaa, 0x55);
1825         if (man_id == 0x1f && flash_id == 0x13)
1826                 qla2x00_write_flash_byte(ha, addr & sec_mask, 0x10);
1827         else
1828                 qla2x00_write_flash_byte(ha, addr & sec_mask, 0x30);
1829
1830         udelay(150);
1831
1832         /* Wait for erase to complete. */
1833         return qla2x00_poll_flash(ha, addr, 0x80, man_id, flash_id);
1834 }
1835
1836 /**
1837  * qla2x00_get_flash_manufacturer() - Read manufacturer ID from flash chip.
1838  * @man_id: Flash manufacturer ID
1839  * @flash_id: Flash ID
1840  */
1841 static void
1842 qla2x00_get_flash_manufacturer(struct qla_hw_data *ha, uint8_t *man_id,
1843     uint8_t *flash_id)
1844 {
1845         qla2x00_write_flash_byte(ha, 0x5555, 0xaa);
1846         qla2x00_write_flash_byte(ha, 0x2aaa, 0x55);
1847         qla2x00_write_flash_byte(ha, 0x5555, 0x90);
1848         *man_id = qla2x00_read_flash_byte(ha, 0x0000);
1849         *flash_id = qla2x00_read_flash_byte(ha, 0x0001);
1850         qla2x00_write_flash_byte(ha, 0x5555, 0xaa);
1851         qla2x00_write_flash_byte(ha, 0x2aaa, 0x55);
1852         qla2x00_write_flash_byte(ha, 0x5555, 0xf0);
1853 }
1854
1855 static void
1856 qla2x00_read_flash_data(struct qla_hw_data *ha, uint8_t *tmp_buf,
1857         uint32_t saddr, uint32_t length)
1858 {
1859         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1860         uint32_t midpoint, ilength;
1861         uint8_t data;
1862
1863         midpoint = length / 2;
1864
1865         WRT_REG_WORD(&reg->nvram, 0);
1866         RD_REG_WORD(&reg->nvram);
1867         for (ilength = 0; ilength < length; saddr++, ilength++, tmp_buf++) {
1868                 if (ilength == midpoint) {
1869                         WRT_REG_WORD(&reg->nvram, NVR_SELECT);
1870                         RD_REG_WORD(&reg->nvram);
1871                 }
1872                 data = qla2x00_read_flash_byte(ha, saddr);
1873                 if (saddr % 100)
1874                         udelay(10);
1875                 *tmp_buf = data;
1876                 cond_resched();
1877         }
1878 }
1879
1880 static inline void
1881 qla2x00_suspend_hba(struct scsi_qla_host *vha)
1882 {
1883         int cnt;
1884         unsigned long flags;
1885         struct qla_hw_data *ha = vha->hw;
1886         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1887
1888         /* Suspend HBA. */
1889         scsi_block_requests(vha->host);
1890         ha->isp_ops->disable_intrs(ha);
1891         set_bit(MBX_UPDATE_FLASH_ACTIVE, &ha->mbx_cmd_flags);
1892
1893         /* Pause RISC. */
1894         spin_lock_irqsave(&ha->hardware_lock, flags);
1895         WRT_REG_WORD(&reg->hccr, HCCR_PAUSE_RISC);
1896         RD_REG_WORD(&reg->hccr);
1897         if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
1898                 for (cnt = 0; cnt < 30000; cnt++) {
1899                         if ((RD_REG_WORD(&reg->hccr) & HCCR_RISC_PAUSE) != 0)
1900                                 break;
1901                         udelay(100);
1902                 }
1903         } else {
1904                 udelay(10);
1905         }
1906         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1907 }
1908
1909 static inline void
1910 qla2x00_resume_hba(struct scsi_qla_host *vha)
1911 {
1912         struct qla_hw_data *ha = vha->hw;
1913
1914         /* Resume HBA. */
1915         clear_bit(MBX_UPDATE_FLASH_ACTIVE, &ha->mbx_cmd_flags);
1916         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1917         qla2xxx_wake_dpc(vha);
1918         qla2x00_wait_for_hba_online(vha);
1919         scsi_unblock_requests(vha->host);
1920 }
1921
1922 uint8_t *
1923 qla2x00_read_optrom_data(struct scsi_qla_host *vha, uint8_t *buf,
1924     uint32_t offset, uint32_t length)
1925 {
1926         uint32_t addr, midpoint;
1927         uint8_t *data;
1928         struct qla_hw_data *ha = vha->hw;
1929         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1930
1931         /* Suspend HBA. */
1932         qla2x00_suspend_hba(vha);
1933
1934         /* Go with read. */
1935         midpoint = ha->optrom_size / 2;
1936
1937         qla2x00_flash_enable(ha);
1938         WRT_REG_WORD(&reg->nvram, 0);
1939         RD_REG_WORD(&reg->nvram);               /* PCI Posting. */
1940         for (addr = offset, data = buf; addr < length; addr++, data++) {
1941                 if (addr == midpoint) {
1942                         WRT_REG_WORD(&reg->nvram, NVR_SELECT);
1943                         RD_REG_WORD(&reg->nvram);       /* PCI Posting. */
1944                 }
1945
1946                 *data = qla2x00_read_flash_byte(ha, addr);
1947         }
1948         qla2x00_flash_disable(ha);
1949
1950         /* Resume HBA. */
1951         qla2x00_resume_hba(vha);
1952
1953         return buf;
1954 }
1955
1956 int
1957 qla2x00_write_optrom_data(struct scsi_qla_host *vha, uint8_t *buf,
1958     uint32_t offset, uint32_t length)
1959 {
1960
1961         int rval;
1962         uint8_t man_id, flash_id, sec_number, data;
1963         uint16_t wd;
1964         uint32_t addr, liter, sec_mask, rest_addr;
1965         struct qla_hw_data *ha = vha->hw;
1966         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1967
1968         /* Suspend HBA. */
1969         qla2x00_suspend_hba(vha);
1970
1971         rval = QLA_SUCCESS;
1972         sec_number = 0;
1973
1974         /* Reset ISP chip. */
1975         WRT_REG_WORD(&reg->ctrl_status, CSR_ISP_SOFT_RESET);
1976         pci_read_config_word(ha->pdev, PCI_COMMAND, &wd);
1977
1978         /* Go with write. */
1979         qla2x00_flash_enable(ha);
1980         do {    /* Loop once to provide quick error exit */
1981                 /* Structure of flash memory based on manufacturer */
1982                 if (IS_OEM_001(ha)) {
1983                         /* OEM variant with special flash part. */
1984                         man_id = flash_id = 0;
1985                         rest_addr = 0xffff;
1986                         sec_mask   = 0x10000;
1987                         goto update_flash;
1988                 }
1989                 qla2x00_get_flash_manufacturer(ha, &man_id, &flash_id);
1990                 switch (man_id) {
1991                 case 0x20: /* ST flash. */
1992                         if (flash_id == 0xd2 || flash_id == 0xe3) {
1993                                 /*
1994                                  * ST m29w008at part - 64kb sector size with
1995                                  * 32kb,8kb,8kb,16kb sectors at memory address
1996                                  * 0xf0000.
1997                                  */
1998                                 rest_addr = 0xffff;
1999                                 sec_mask = 0x10000;
2000                                 break;
2001                         }
2002                         /*
2003                          * ST m29w010b part - 16kb sector size
2004                          * Default to 16kb sectors
2005                          */
2006                         rest_addr = 0x3fff;
2007                         sec_mask = 0x1c000;
2008                         break;
2009                 case 0x40: /* Mostel flash. */
2010                         /* Mostel v29c51001 part - 512 byte sector size. */
2011                         rest_addr = 0x1ff;
2012                         sec_mask = 0x1fe00;
2013                         break;
2014                 case 0xbf: /* SST flash. */
2015                         /* SST39sf10 part - 4kb sector size. */
2016                         rest_addr = 0xfff;
2017                         sec_mask = 0x1f000;
2018                         break;
2019                 case 0xda: /* Winbond flash. */
2020                         /* Winbond W29EE011 part - 256 byte sector size. */
2021                         rest_addr = 0x7f;
2022                         sec_mask = 0x1ff80;
2023                         break;
2024                 case 0xc2: /* Macronix flash. */
2025                         /* 64k sector size. */
2026                         if (flash_id == 0x38 || flash_id == 0x4f) {
2027                                 rest_addr = 0xffff;
2028                                 sec_mask = 0x10000;
2029                                 break;
2030                         }
2031                         /* Fall through... */
2032
2033                 case 0x1f: /* Atmel flash. */
2034                         /* 512k sector size. */
2035                         if (flash_id == 0x13) {
2036                                 rest_addr = 0x7fffffff;
2037                                 sec_mask =   0x80000000;
2038                                 break;
2039                         }
2040                         /* Fall through... */
2041
2042                 case 0x01: /* AMD flash. */
2043                         if (flash_id == 0x38 || flash_id == 0x40 ||
2044                             flash_id == 0x4f) {
2045                                 /* Am29LV081 part - 64kb sector size. */
2046                                 /* Am29LV002BT part - 64kb sector size. */
2047                                 rest_addr = 0xffff;
2048                                 sec_mask = 0x10000;
2049                                 break;
2050                         } else if (flash_id == 0x3e) {
2051                                 /*
2052                                  * Am29LV008b part - 64kb sector size with
2053                                  * 32kb,8kb,8kb,16kb sector at memory address
2054                                  * h0xf0000.
2055                                  */
2056                                 rest_addr = 0xffff;
2057                                 sec_mask = 0x10000;
2058                                 break;
2059                         } else if (flash_id == 0x20 || flash_id == 0x6e) {
2060                                 /*
2061                                  * Am29LV010 part or AM29f010 - 16kb sector
2062                                  * size.
2063                                  */
2064                                 rest_addr = 0x3fff;
2065                                 sec_mask = 0x1c000;
2066                                 break;
2067                         } else if (flash_id == 0x6d) {
2068                                 /* Am29LV001 part - 8kb sector size. */
2069                                 rest_addr = 0x1fff;
2070                                 sec_mask = 0x1e000;
2071                                 break;
2072                         }
2073                 default:
2074                         /* Default to 16 kb sector size. */
2075                         rest_addr = 0x3fff;
2076                         sec_mask = 0x1c000;
2077                         break;
2078                 }
2079
2080 update_flash:
2081                 if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
2082                         if (qla2x00_erase_flash(ha, man_id, flash_id)) {
2083                                 rval = QLA_FUNCTION_FAILED;
2084                                 break;
2085                         }
2086                 }
2087
2088                 for (addr = offset, liter = 0; liter < length; liter++,
2089                     addr++) {
2090                         data = buf[liter];
2091                         /* Are we at the beginning of a sector? */
2092                         if ((addr & rest_addr) == 0) {
2093                                 if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
2094                                         if (addr >= 0x10000UL) {
2095                                                 if (((addr >> 12) & 0xf0) &&
2096                                                     ((man_id == 0x01 &&
2097                                                         flash_id == 0x3e) ||
2098                                                      (man_id == 0x20 &&
2099                                                          flash_id == 0xd2))) {
2100                                                         sec_number++;
2101                                                         if (sec_number == 1) {
2102                                                                 rest_addr =
2103                                                                     0x7fff;
2104                                                                 sec_mask =
2105                                                                     0x18000;
2106                                                         } else if (
2107                                                             sec_number == 2 ||
2108                                                             sec_number == 3) {
2109                                                                 rest_addr =
2110                                                                     0x1fff;
2111                                                                 sec_mask =
2112                                                                     0x1e000;
2113                                                         } else if (
2114                                                             sec_number == 4) {
2115                                                                 rest_addr =
2116                                                                     0x3fff;
2117                                                                 sec_mask =
2118                                                                     0x1c000;
2119                                                         }
2120                                                 }
2121                                         }
2122                                 } else if (addr == ha->optrom_size / 2) {
2123                                         WRT_REG_WORD(&reg->nvram, NVR_SELECT);
2124                                         RD_REG_WORD(&reg->nvram);
2125                                 }
2126
2127                                 if (flash_id == 0xda && man_id == 0xc1) {
2128                                         qla2x00_write_flash_byte(ha, 0x5555,
2129                                             0xaa);
2130                                         qla2x00_write_flash_byte(ha, 0x2aaa,
2131                                             0x55);
2132                                         qla2x00_write_flash_byte(ha, 0x5555,
2133                                             0xa0);
2134                                 } else if (!IS_QLA2322(ha) && !IS_QLA6322(ha)) {
2135                                         /* Then erase it */
2136                                         if (qla2x00_erase_flash_sector(ha,
2137                                             addr, sec_mask, man_id,
2138                                             flash_id)) {
2139                                                 rval = QLA_FUNCTION_FAILED;
2140                                                 break;
2141                                         }
2142                                         if (man_id == 0x01 && flash_id == 0x6d)
2143                                                 sec_number++;
2144                                 }
2145                         }
2146
2147                         if (man_id == 0x01 && flash_id == 0x6d) {
2148                                 if (sec_number == 1 &&
2149                                     addr == (rest_addr - 1)) {
2150                                         rest_addr = 0x0fff;
2151                                         sec_mask   = 0x1f000;
2152                                 } else if (sec_number == 3 && (addr & 0x7ffe)) {
2153                                         rest_addr = 0x3fff;
2154                                         sec_mask   = 0x1c000;
2155                                 }
2156                         }
2157
2158                         if (qla2x00_program_flash_address(ha, addr, data,
2159                             man_id, flash_id)) {
2160                                 rval = QLA_FUNCTION_FAILED;
2161                                 break;
2162                         }
2163                         cond_resched();
2164                 }
2165         } while (0);
2166         qla2x00_flash_disable(ha);
2167
2168         /* Resume HBA. */
2169         qla2x00_resume_hba(vha);
2170
2171         return rval;
2172 }
2173
2174 uint8_t *
2175 qla24xx_read_optrom_data(struct scsi_qla_host *vha, uint8_t *buf,
2176     uint32_t offset, uint32_t length)
2177 {
2178         struct qla_hw_data *ha = vha->hw;
2179
2180         /* Suspend HBA. */
2181         scsi_block_requests(vha->host);
2182         set_bit(MBX_UPDATE_FLASH_ACTIVE, &ha->mbx_cmd_flags);
2183
2184         /* Go with read. */
2185         qla24xx_read_flash_data(vha, (uint32_t *)buf, offset >> 2, length >> 2);
2186
2187         /* Resume HBA. */
2188         clear_bit(MBX_UPDATE_FLASH_ACTIVE, &ha->mbx_cmd_flags);
2189         scsi_unblock_requests(vha->host);
2190
2191         return buf;
2192 }
2193
2194 int
2195 qla24xx_write_optrom_data(struct scsi_qla_host *vha, uint8_t *buf,
2196     uint32_t offset, uint32_t length)
2197 {
2198         int rval;
2199         struct qla_hw_data *ha = vha->hw;
2200
2201         /* Suspend HBA. */
2202         scsi_block_requests(vha->host);
2203         set_bit(MBX_UPDATE_FLASH_ACTIVE, &ha->mbx_cmd_flags);
2204
2205         /* Go with write. */
2206         rval = qla24xx_write_flash_data(vha, (uint32_t *)buf, offset >> 2,
2207             length >> 2);
2208
2209         /* Resume HBA -- RISC reset needed. */
2210         clear_bit(MBX_UPDATE_FLASH_ACTIVE, &ha->mbx_cmd_flags);
2211         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2212         qla2xxx_wake_dpc(vha);
2213         qla2x00_wait_for_hba_online(vha);
2214         scsi_unblock_requests(vha->host);
2215
2216         return rval;
2217 }
2218
2219 uint8_t *
2220 qla25xx_read_optrom_data(struct scsi_qla_host *vha, uint8_t *buf,
2221     uint32_t offset, uint32_t length)
2222 {
2223         int rval;
2224         dma_addr_t optrom_dma;
2225         void *optrom;
2226         uint8_t *pbuf;
2227         uint32_t faddr, left, burst;
2228         struct qla_hw_data *ha = vha->hw;
2229
2230         if (offset & 0xfff)
2231                 goto slow_read;
2232         if (length < OPTROM_BURST_SIZE)
2233                 goto slow_read;
2234
2235         optrom = dma_alloc_coherent(&ha->pdev->dev, OPTROM_BURST_SIZE,
2236             &optrom_dma, GFP_KERNEL);
2237         if (!optrom) {
2238                 qla_printk(KERN_DEBUG, ha,
2239                     "Unable to allocate memory for optrom burst read "
2240                     "(%x KB).\n", OPTROM_BURST_SIZE / 1024);
2241
2242                 goto slow_read;
2243         }
2244
2245         pbuf = buf;
2246         faddr = offset >> 2;
2247         left = length >> 2;
2248         burst = OPTROM_BURST_DWORDS;
2249         while (left != 0) {
2250                 if (burst > left)
2251                         burst = left;
2252
2253                 rval = qla2x00_dump_ram(vha, optrom_dma,
2254                     flash_data_addr(ha, faddr), burst);
2255                 if (rval) {
2256                         qla_printk(KERN_WARNING, ha,
2257                             "Unable to burst-read optrom segment "
2258                             "(%x/%x/%llx).\n", rval,
2259                             flash_data_addr(ha, faddr),
2260                             (unsigned long long)optrom_dma);
2261                         qla_printk(KERN_WARNING, ha,
2262                             "Reverting to slow-read.\n");
2263
2264                         dma_free_coherent(&ha->pdev->dev, OPTROM_BURST_SIZE,
2265                             optrom, optrom_dma);
2266                         goto slow_read;
2267                 }
2268
2269                 memcpy(pbuf, optrom, burst * 4);
2270
2271                 left -= burst;
2272                 faddr += burst;
2273                 pbuf += burst * 4;
2274         }
2275
2276         dma_free_coherent(&ha->pdev->dev, OPTROM_BURST_SIZE, optrom,
2277             optrom_dma);
2278
2279         return buf;
2280
2281 slow_read:
2282     return qla24xx_read_optrom_data(vha, buf, offset, length);
2283 }
2284
2285 /**
2286  * qla2x00_get_fcode_version() - Determine an FCODE image's version.
2287  * @ha: HA context
2288  * @pcids: Pointer to the FCODE PCI data structure
2289  *
2290  * The process of retrieving the FCODE version information is at best
2291  * described as interesting.
2292  *
2293  * Within the first 100h bytes of the image an ASCII string is present
2294  * which contains several pieces of information including the FCODE
2295  * version.  Unfortunately it seems the only reliable way to retrieve
2296  * the version is by scanning for another sentinel within the string,
2297  * the FCODE build date:
2298  *
2299  *      ... 2.00.02 10/17/02 ...
2300  *
2301  * Returns QLA_SUCCESS on successful retrieval of version.
2302  */
2303 static void
2304 qla2x00_get_fcode_version(struct qla_hw_data *ha, uint32_t pcids)
2305 {
2306         int ret = QLA_FUNCTION_FAILED;
2307         uint32_t istart, iend, iter, vend;
2308         uint8_t do_next, rbyte, *vbyte;
2309
2310         memset(ha->fcode_revision, 0, sizeof(ha->fcode_revision));
2311
2312         /* Skip the PCI data structure. */
2313         istart = pcids +
2314             ((qla2x00_read_flash_byte(ha, pcids + 0x0B) << 8) |
2315                 qla2x00_read_flash_byte(ha, pcids + 0x0A));
2316         iend = istart + 0x100;
2317         do {
2318                 /* Scan for the sentinel date string...eeewww. */
2319                 do_next = 0;
2320                 iter = istart;
2321                 while ((iter < iend) && !do_next) {
2322                         iter++;
2323                         if (qla2x00_read_flash_byte(ha, iter) == '/') {
2324                                 if (qla2x00_read_flash_byte(ha, iter + 2) ==
2325                                     '/')
2326                                         do_next++;
2327                                 else if (qla2x00_read_flash_byte(ha,
2328                                     iter + 3) == '/')
2329                                         do_next++;
2330                         }
2331                 }
2332                 if (!do_next)
2333                         break;
2334
2335                 /* Backtrack to previous ' ' (space). */
2336                 do_next = 0;
2337                 while ((iter > istart) && !do_next) {
2338                         iter--;
2339                         if (qla2x00_read_flash_byte(ha, iter) == ' ')
2340                                 do_next++;
2341                 }
2342                 if (!do_next)
2343                         break;
2344
2345                 /*
2346                  * Mark end of version tag, and find previous ' ' (space) or
2347                  * string length (recent FCODE images -- major hack ahead!!!).
2348                  */
2349                 vend = iter - 1;
2350                 do_next = 0;
2351                 while ((iter > istart) && !do_next) {
2352                         iter--;
2353                         rbyte = qla2x00_read_flash_byte(ha, iter);
2354                         if (rbyte == ' ' || rbyte == 0xd || rbyte == 0x10)
2355                                 do_next++;
2356                 }
2357                 if (!do_next)
2358                         break;
2359
2360                 /* Mark beginning of version tag, and copy data. */
2361                 iter++;
2362                 if ((vend - iter) &&
2363                     ((vend - iter) < sizeof(ha->fcode_revision))) {
2364                         vbyte = ha->fcode_revision;
2365                         while (iter <= vend) {
2366                                 *vbyte++ = qla2x00_read_flash_byte(ha, iter);
2367                                 iter++;
2368                         }
2369                         ret = QLA_SUCCESS;
2370                 }
2371         } while (0);
2372
2373         if (ret != QLA_SUCCESS)
2374                 memset(ha->fcode_revision, 0, sizeof(ha->fcode_revision));
2375 }
2376
2377 int
2378 qla2x00_get_flash_version(scsi_qla_host_t *vha, void *mbuf)
2379 {
2380         int ret = QLA_SUCCESS;
2381         uint8_t code_type, last_image;
2382         uint32_t pcihdr, pcids;
2383         uint8_t *dbyte;
2384         uint16_t *dcode;
2385         struct qla_hw_data *ha = vha->hw;
2386
2387         if (!ha->pio_address || !mbuf)
2388                 return QLA_FUNCTION_FAILED;
2389
2390         memset(ha->bios_revision, 0, sizeof(ha->bios_revision));
2391         memset(ha->efi_revision, 0, sizeof(ha->efi_revision));
2392         memset(ha->fcode_revision, 0, sizeof(ha->fcode_revision));
2393         memset(ha->fw_revision, 0, sizeof(ha->fw_revision));
2394
2395         qla2x00_flash_enable(ha);
2396
2397         /* Begin with first PCI expansion ROM header. */
2398         pcihdr = 0;
2399         last_image = 1;
2400         do {
2401                 /* Verify PCI expansion ROM header. */
2402                 if (qla2x00_read_flash_byte(ha, pcihdr) != 0x55 ||
2403                     qla2x00_read_flash_byte(ha, pcihdr + 0x01) != 0xaa) {
2404                         /* No signature */
2405                         DEBUG2(qla_printk(KERN_DEBUG, ha, "No matching ROM "
2406                             "signature.\n"));
2407                         ret = QLA_FUNCTION_FAILED;
2408                         break;
2409                 }
2410
2411                 /* Locate PCI data structure. */
2412                 pcids = pcihdr +
2413                     ((qla2x00_read_flash_byte(ha, pcihdr + 0x19) << 8) |
2414                         qla2x00_read_flash_byte(ha, pcihdr + 0x18));
2415
2416                 /* Validate signature of PCI data structure. */
2417                 if (qla2x00_read_flash_byte(ha, pcids) != 'P' ||
2418                     qla2x00_read_flash_byte(ha, pcids + 0x1) != 'C' ||
2419                     qla2x00_read_flash_byte(ha, pcids + 0x2) != 'I' ||
2420                     qla2x00_read_flash_byte(ha, pcids + 0x3) != 'R') {
2421                         /* Incorrect header. */
2422                         DEBUG2(qla_printk(KERN_INFO, ha, "PCI data struct not "
2423                             "found pcir_adr=%x.\n", pcids));
2424                         ret = QLA_FUNCTION_FAILED;
2425                         break;
2426                 }
2427
2428                 /* Read version */
2429                 code_type = qla2x00_read_flash_byte(ha, pcids + 0x14);
2430                 switch (code_type) {
2431                 case ROM_CODE_TYPE_BIOS:
2432                         /* Intel x86, PC-AT compatible. */
2433                         ha->bios_revision[0] =
2434                             qla2x00_read_flash_byte(ha, pcids + 0x12);
2435                         ha->bios_revision[1] =
2436                             qla2x00_read_flash_byte(ha, pcids + 0x13);
2437                         DEBUG3(qla_printk(KERN_DEBUG, ha, "read BIOS %d.%d.\n",
2438                             ha->bios_revision[1], ha->bios_revision[0]));
2439                         break;
2440                 case ROM_CODE_TYPE_FCODE:
2441                         /* Open Firmware standard for PCI (FCode). */
2442                         /* Eeeewww... */
2443                         qla2x00_get_fcode_version(ha, pcids);
2444                         break;
2445                 case ROM_CODE_TYPE_EFI:
2446                         /* Extensible Firmware Interface (EFI). */
2447                         ha->efi_revision[0] =
2448                             qla2x00_read_flash_byte(ha, pcids + 0x12);
2449                         ha->efi_revision[1] =
2450                             qla2x00_read_flash_byte(ha, pcids + 0x13);
2451                         DEBUG3(qla_printk(KERN_DEBUG, ha, "read EFI %d.%d.\n",
2452                             ha->efi_revision[1], ha->efi_revision[0]));
2453                         break;
2454                 default:
2455                         DEBUG2(qla_printk(KERN_INFO, ha, "Unrecognized code "
2456                             "type %x at pcids %x.\n", code_type, pcids));
2457                         break;
2458                 }
2459
2460                 last_image = qla2x00_read_flash_byte(ha, pcids + 0x15) & BIT_7;
2461
2462                 /* Locate next PCI expansion ROM. */
2463                 pcihdr += ((qla2x00_read_flash_byte(ha, pcids + 0x11) << 8) |
2464                     qla2x00_read_flash_byte(ha, pcids + 0x10)) * 512;
2465         } while (!last_image);
2466
2467         if (IS_QLA2322(ha)) {
2468                 /* Read firmware image information. */
2469                 memset(ha->fw_revision, 0, sizeof(ha->fw_revision));
2470                 dbyte = mbuf;
2471                 memset(dbyte, 0, 8);
2472                 dcode = (uint16_t *)dbyte;
2473
2474                 qla2x00_read_flash_data(ha, dbyte, ha->flt_region_fw * 4 + 10,
2475                     8);
2476                 DEBUG3(qla_printk(KERN_DEBUG, ha, "dumping fw ver from "
2477                     "flash:\n"));
2478                 DEBUG3(qla2x00_dump_buffer((uint8_t *)dbyte, 8));
2479
2480                 if ((dcode[0] == 0xffff && dcode[1] == 0xffff &&
2481                     dcode[2] == 0xffff && dcode[3] == 0xffff) ||
2482                     (dcode[0] == 0 && dcode[1] == 0 && dcode[2] == 0 &&
2483                     dcode[3] == 0)) {
2484                         DEBUG2(qla_printk(KERN_INFO, ha, "Unrecognized fw "
2485                             "revision at %x.\n", ha->flt_region_fw * 4));
2486                 } else {
2487                         /* values are in big endian */
2488                         ha->fw_revision[0] = dbyte[0] << 16 | dbyte[1];
2489                         ha->fw_revision[1] = dbyte[2] << 16 | dbyte[3];
2490                         ha->fw_revision[2] = dbyte[4] << 16 | dbyte[5];
2491                 }
2492         }
2493
2494         qla2x00_flash_disable(ha);
2495
2496         return ret;
2497 }
2498
2499 int
2500 qla24xx_get_flash_version(scsi_qla_host_t *vha, void *mbuf)
2501 {
2502         int ret = QLA_SUCCESS;
2503         uint32_t pcihdr, pcids;
2504         uint32_t *dcode;
2505         uint8_t *bcode;
2506         uint8_t code_type, last_image;
2507         int i;
2508         struct qla_hw_data *ha = vha->hw;
2509
2510         if (!mbuf)
2511                 return QLA_FUNCTION_FAILED;
2512
2513         memset(ha->bios_revision, 0, sizeof(ha->bios_revision));
2514         memset(ha->efi_revision, 0, sizeof(ha->efi_revision));
2515         memset(ha->fcode_revision, 0, sizeof(ha->fcode_revision));
2516         memset(ha->fw_revision, 0, sizeof(ha->fw_revision));
2517
2518         dcode = mbuf;
2519
2520         /* Begin with first PCI expansion ROM header. */
2521         pcihdr = ha->flt_region_boot;
2522         last_image = 1;
2523         do {
2524                 /* Verify PCI expansion ROM header. */
2525                 qla24xx_read_flash_data(vha, dcode, pcihdr >> 2, 0x20);
2526                 bcode = mbuf + (pcihdr % 4);
2527                 if (bcode[0x0] != 0x55 || bcode[0x1] != 0xaa) {
2528                         /* No signature */
2529                         DEBUG2(qla_printk(KERN_DEBUG, ha, "No matching ROM "
2530                             "signature.\n"));
2531                         ret = QLA_FUNCTION_FAILED;
2532                         break;
2533                 }
2534
2535                 /* Locate PCI data structure. */
2536                 pcids = pcihdr + ((bcode[0x19] << 8) | bcode[0x18]);
2537
2538                 qla24xx_read_flash_data(vha, dcode, pcids >> 2, 0x20);
2539                 bcode = mbuf + (pcihdr % 4);
2540
2541                 /* Validate signature of PCI data structure. */
2542                 if (bcode[0x0] != 'P' || bcode[0x1] != 'C' ||
2543                     bcode[0x2] != 'I' || bcode[0x3] != 'R') {
2544                         /* Incorrect header. */
2545                         DEBUG2(qla_printk(KERN_INFO, ha, "PCI data struct not "
2546                             "found pcir_adr=%x.\n", pcids));
2547                         ret = QLA_FUNCTION_FAILED;
2548                         break;
2549                 }
2550
2551                 /* Read version */
2552                 code_type = bcode[0x14];
2553                 switch (code_type) {
2554                 case ROM_CODE_TYPE_BIOS:
2555                         /* Intel x86, PC-AT compatible. */
2556                         ha->bios_revision[0] = bcode[0x12];
2557                         ha->bios_revision[1] = bcode[0x13];
2558                         DEBUG3(qla_printk(KERN_DEBUG, ha, "read BIOS %d.%d.\n",
2559                             ha->bios_revision[1], ha->bios_revision[0]));
2560                         break;
2561                 case ROM_CODE_TYPE_FCODE:
2562                         /* Open Firmware standard for PCI (FCode). */
2563                         ha->fcode_revision[0] = bcode[0x12];
2564                         ha->fcode_revision[1] = bcode[0x13];
2565                         DEBUG3(qla_printk(KERN_DEBUG, ha, "read FCODE %d.%d.\n",
2566                             ha->fcode_revision[1], ha->fcode_revision[0]));
2567                         break;
2568                 case ROM_CODE_TYPE_EFI:
2569                         /* Extensible Firmware Interface (EFI). */
2570                         ha->efi_revision[0] = bcode[0x12];
2571                         ha->efi_revision[1] = bcode[0x13];
2572                         DEBUG3(qla_printk(KERN_DEBUG, ha, "read EFI %d.%d.\n",
2573                             ha->efi_revision[1], ha->efi_revision[0]));
2574                         break;
2575                 default:
2576                         DEBUG2(qla_printk(KERN_INFO, ha, "Unrecognized code "
2577                             "type %x at pcids %x.\n", code_type, pcids));
2578                         break;
2579                 }
2580
2581                 last_image = bcode[0x15] & BIT_7;
2582
2583                 /* Locate next PCI expansion ROM. */
2584                 pcihdr += ((bcode[0x11] << 8) | bcode[0x10]) * 512;
2585         } while (!last_image);
2586
2587         /* Read firmware image information. */
2588         memset(ha->fw_revision, 0, sizeof(ha->fw_revision));
2589         dcode = mbuf;
2590
2591         qla24xx_read_flash_data(vha, dcode, ha->flt_region_fw + 4, 4);
2592         for (i = 0; i < 4; i++)
2593                 dcode[i] = be32_to_cpu(dcode[i]);
2594
2595         if ((dcode[0] == 0xffffffff && dcode[1] == 0xffffffff &&
2596             dcode[2] == 0xffffffff && dcode[3] == 0xffffffff) ||
2597             (dcode[0] == 0 && dcode[1] == 0 && dcode[2] == 0 &&
2598             dcode[3] == 0)) {
2599                 DEBUG2(qla_printk(KERN_INFO, ha, "Unrecognized fw "
2600                     "revision at %x.\n", ha->flt_region_fw * 4));
2601         } else {
2602                 ha->fw_revision[0] = dcode[0];
2603                 ha->fw_revision[1] = dcode[1];
2604                 ha->fw_revision[2] = dcode[2];
2605                 ha->fw_revision[3] = dcode[3];
2606         }
2607
2608         return ret;
2609 }
2610
2611 static int
2612 qla2xxx_is_vpd_valid(uint8_t *pos, uint8_t *end)
2613 {
2614         if (pos >= end || *pos != 0x82)
2615                 return 0;
2616
2617         pos += 3 + pos[1];
2618         if (pos >= end || *pos != 0x90)
2619                 return 0;
2620
2621         pos += 3 + pos[1];
2622         if (pos >= end || *pos != 0x78)
2623                 return 0;
2624
2625         return 1;
2626 }
2627
2628 int
2629 qla2xxx_get_vpd_field(scsi_qla_host_t *vha, char *key, char *str, size_t size)
2630 {
2631         struct qla_hw_data *ha = vha->hw;
2632         uint8_t *pos = ha->vpd;
2633         uint8_t *end = pos + ha->vpd_size;
2634         int len = 0;
2635
2636         if (!IS_FWI2_CAPABLE(ha) || !qla2xxx_is_vpd_valid(pos, end))
2637                 return 0;
2638
2639         while (pos < end && *pos != 0x78) {
2640                 len = (*pos == 0x82) ? pos[1] : pos[2];
2641
2642                 if (!strncmp(pos, key, strlen(key)))
2643                         break;
2644
2645                 if (*pos != 0x90 && *pos != 0x91)
2646                         pos += len;
2647
2648                 pos += 3;
2649         }
2650
2651         if (pos < end - len && *pos != 0x78)
2652                 return snprintf(str, size, "%.*s", len, pos + 3);
2653
2654         return 0;
2655 }