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

   1 /*
   2  * QLogic Fibre Channel HBA Driver
   3  * Copyright (c)  2003-2008 QLogic Corporation
   4  *
   5  * See LICENSE.qla2xxx for copyright and licensing details.
   6  */
   7 #include "qla_def.h"
   8
   9 #include <linux/delay.h>
  10 #include <linux/vmalloc.h>
  11 #include <asm/uaccess.h>
  12
  13 /*
  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_to_access_addr(uint32_t faddr)
 429 {
 430         return FARX_ACCESS_FLASH_CONF | faddr;
 431 }
 432
 433 static inline uint32_t
 434 flash_data_to_access_addr(uint32_t faddr)
 435 {
 436         return FARX_ACCESS_FLASH_DATA | faddr;
 437 }
 438
 439 static inline uint32_t
 440 nvram_conf_to_access_addr(uint32_t naddr)
 441 {
 442         return FARX_ACCESS_NVRAM_CONF | naddr;
 443 }
 444
 445 static inline uint32_t
 446 nvram_data_to_access_addr(uint32_t naddr)
 447 {
 448         return FARX_ACCESS_NVRAM_DATA | 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         /* Dword reads to flash. */
 485         for (i = 0; i < dwords; i++, faddr++)
 486                 dwptr[i] = cpu_to_le32(qla24xx_read_flash_dword(vha->hw,
 487                     flash_data_to_access_addr(faddr)));
 488
 489         return dwptr;
 490 }
 491
 492 static int
 493 qla24xx_write_flash_dword(struct qla_hw_data *ha, uint32_t addr, uint32_t data)
 494 {
 495         int rval;
 496         uint32_t cnt;
 497         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
 498
 499         WRT_REG_DWORD(&reg->flash_data, data);
 500         RD_REG_DWORD(&reg->flash_data);         /* PCI Posting. */
 501         WRT_REG_DWORD(&reg->flash_addr, addr | FARX_DATA_FLAG);
 502         /* Wait for Write cycle to complete. */
 503         rval = QLA_SUCCESS;
 504         for (cnt = 500000; (RD_REG_DWORD(&reg->flash_addr) & FARX_DATA_FLAG) &&
 505             rval == QLA_SUCCESS; cnt--) {
 506                 if (cnt)
 507                         udelay(10);
 508                 else
 509                         rval = QLA_FUNCTION_TIMEOUT;
 510                 cond_resched();
 511         }
 512         return rval;
 513 }
 514
 515 static void
 516 qla24xx_get_flash_manufacturer(struct qla_hw_data *ha, uint8_t *man_id,
 517     uint8_t *flash_id)
 518 {
 519         uint32_t ids;
 520
 521         ids = qla24xx_read_flash_dword(ha, flash_data_to_access_addr(0xd03ab));
 522         *man_id = LSB(ids);
 523         *flash_id = MSB(ids);
 524
 525         /* Check if man_id and flash_id are valid. */
 526         if (ids != 0xDEADDEAD && (*man_id == 0 || *flash_id == 0)) {
 527                 /* Read information using 0x9f opcode
 528                  * Device ID, Mfg ID would be read in the format:
 529                  *   <Ext Dev Info><Device ID Part2><Device ID Part 1><Mfg ID>
 530                  * Example: ATMEL 0x00 01 45 1F
 531                  * Extract MFG and Dev ID from last two bytes.
 532                  */
 533                 ids = qla24xx_read_flash_dword(ha,
 534                     flash_data_to_access_addr(0xd009f));
 535                 *man_id = LSB(ids);
 536                 *flash_id = MSB(ids);
 537         }
 538 }
 539
 540 static int
 541 qla2xxx_find_flt_start(scsi_qla_host_t *vha, uint32_t *start)
 542 {
 543         const char *loc, *locations[] = { "DEF", "PCI" };
 544         uint32_t pcihdr, pcids;
 545         uint32_t *dcode;
 546         uint8_t *buf, *bcode, last_image;
 547         uint16_t cnt, chksum, *wptr;
 548         struct qla_flt_location *fltl;
 549         struct qla_hw_data *ha = vha->hw;
 550         struct req_que *req = ha->req;
 551
 552         /*
 553          * FLT-location structure resides after the last PCI region.
 554          */
 555
 556         /* Begin with sane defaults. */
 557         loc = locations[0];
 558         *start = IS_QLA24XX_TYPE(ha) ? FA_FLASH_LAYOUT_ADDR_24:
 559             FA_FLASH_LAYOUT_ADDR;
 560
 561         /* Begin with first PCI expansion ROM header. */
 562         buf = (uint8_t *)req->ring;
 563         dcode = (uint32_t *)req->ring;
 564         pcihdr = 0;
 565         last_image = 1;
 566         do {
 567                 /* Verify PCI expansion ROM header. */
 568                 qla24xx_read_flash_data(vha, dcode, pcihdr >> 2, 0x20);
 569                 bcode = buf + (pcihdr % 4);
 570                 if (bcode[0x0] != 0x55 || bcode[0x1] != 0xaa)
 571                         goto end;
 572
 573                 /* Locate PCI data structure. */
 574                 pcids = pcihdr + ((bcode[0x19] << 8) | bcode[0x18]);
 575                 qla24xx_read_flash_data(vha, dcode, pcids >> 2, 0x20);
 576                 bcode = buf + (pcihdr % 4);
 577
 578                 /* Validate signature of PCI data structure. */
 579                 if (bcode[0x0] != 'P' || bcode[0x1] != 'C' ||
 580                     bcode[0x2] != 'I' || bcode[0x3] != 'R')
 581                         goto end;
 582
 583                 last_image = bcode[0x15] & BIT_7;
 584
 585                 /* Locate next PCI expansion ROM. */
 586                 pcihdr += ((bcode[0x11] << 8) | bcode[0x10]) * 512;
 587         } while (!last_image);
 588
 589         /* Now verify FLT-location structure. */
 590         fltl = (struct qla_flt_location *)req->ring;
 591         qla24xx_read_flash_data(vha, dcode, pcihdr >> 2,
 592             sizeof(struct qla_flt_location) >> 2);
 593         if (fltl->sig[0] != 'Q' || fltl->sig[1] != 'F' ||
 594             fltl->sig[2] != 'L' || fltl->sig[3] != 'T')
 595                 goto end;
 596
 597         wptr = (uint16_t *)req->ring;
 598         cnt = sizeof(struct qla_flt_location) >> 1;
 599         for (chksum = 0; cnt; cnt--)
 600                 chksum += le16_to_cpu(*wptr++);
 601         if (chksum) {
 602                 qla_printk(KERN_ERR, ha,
 603                     "Inconsistent FLTL detected: checksum=0x%x.\n", chksum);
 604                 qla2x00_dump_buffer(buf, sizeof(struct qla_flt_location));
 605                 return QLA_FUNCTION_FAILED;
 606         }
 607
 608         /* Good data.  Use specified location. */
 609         loc = locations[1];
 610         *start = le16_to_cpu(fltl->start_hi) << 16 |
 611             le16_to_cpu(fltl->start_lo);
 612 end:
 613         DEBUG2(qla_printk(KERN_DEBUG, ha, "FLTL[%s] = 0x%x.\n", loc, *start));
 614         return QLA_SUCCESS;
 615 }
 616
 617 static void
 618 qla2xxx_get_flt_info(scsi_qla_host_t *vha, uint32_t flt_addr)
 619 {
 620         const char *loc, *locations[] = { "DEF", "FLT" };
 621         uint16_t *wptr;
 622         uint16_t cnt, chksum;
 623         uint32_t start;
 624         struct qla_flt_header *flt;
 625         struct qla_flt_region *region;
 626         struct qla_hw_data *ha = vha->hw;
 627         struct req_que *req = ha->req;
 628
 629         ha->flt_region_flt = flt_addr;
 630         wptr = (uint16_t *)req->ring;
 631         flt = (struct qla_flt_header *)req->ring;
 632         region = (struct qla_flt_region *)&flt[1];
 633         ha->isp_ops->read_optrom(vha, (uint8_t *)req->ring,
 634             flt_addr << 2, OPTROM_BURST_SIZE);
 635         if (*wptr == __constant_cpu_to_le16(0xffff))
 636                 goto no_flash_data;
 637         if (flt->version != __constant_cpu_to_le16(1)) {
 638                 DEBUG2(qla_printk(KERN_INFO, ha, "Unsupported FLT detected: "
 639                     "version=0x%x length=0x%x checksum=0x%x.\n",
 640                     le16_to_cpu(flt->version), le16_to_cpu(flt->length),
 641                     le16_to_cpu(flt->checksum)));
 642                 goto no_flash_data;
 643         }
 644
 645         cnt = (sizeof(struct qla_flt_header) + le16_to_cpu(flt->length)) >> 1;
 646         for (chksum = 0; cnt; cnt--)
 647                 chksum += le16_to_cpu(*wptr++);
 648         if (chksum) {
 649                 DEBUG2(qla_printk(KERN_INFO, ha, "Inconsistent FLT detected: "
 650                     "version=0x%x length=0x%x checksum=0x%x.\n",
 651                     le16_to_cpu(flt->version), le16_to_cpu(flt->length),
 652                     chksum));
 653                 goto no_flash_data;
 654         }
 655
 656         loc = locations[1];
 657         cnt = le16_to_cpu(flt->length) / sizeof(struct qla_flt_region);
 658         for ( ; cnt; cnt--, region++) {
 659                 /* Store addresses as DWORD offsets. */
 660                 start = le32_to_cpu(region->start) >> 2;
 661
 662                 DEBUG3(qla_printk(KERN_DEBUG, ha, "FLT[%02x]: start=0x%x "
 663                     "end=0x%x size=0x%x.\n", le32_to_cpu(region->code), start,
 664                     le32_to_cpu(region->end) >> 2, le32_to_cpu(region->size)));
 665
 666                 switch (le32_to_cpu(region->code)) {
 667                 case FLT_REG_FW:
 668                         ha->flt_region_fw = start;
 669                         break;
 670                 case FLT_REG_BOOT_CODE:
 671                         ha->flt_region_boot = start;
 672                         break;
 673                 case FLT_REG_VPD_0:
 674                         ha->flt_region_vpd_nvram = start;
 675                         break;
 676                 case FLT_REG_FDT:
 677                         ha->flt_region_fdt = start;
 678                         break;
 679                 case FLT_REG_HW_EVENT_0:
 680                         if (!PCI_FUNC(ha->pdev->devfn))
 681                                 ha->flt_region_hw_event = start;
 682                         break;
 683                 case FLT_REG_HW_EVENT_1:
 684                         if (PCI_FUNC(ha->pdev->devfn))
 685                                 ha->flt_region_hw_event = start;
 686                         break;
 687                 case FLT_REG_NPIV_CONF_0:
 688                         if (!PCI_FUNC(ha->pdev->devfn))
 689                                 ha->flt_region_npiv_conf = start;
 690                         break;
 691                 case FLT_REG_NPIV_CONF_1:
 692                         if (PCI_FUNC(ha->pdev->devfn))
 693                                 ha->flt_region_npiv_conf = start;
 694                         break;
 695                 }
 696         }
 697         goto done;
 698
 699 no_flash_data:
 700         /* Use hardcoded defaults. */
 701         loc = locations[0];
 702         ha->flt_region_fw = FA_RISC_CODE_ADDR;
 703         ha->flt_region_boot = FA_BOOT_CODE_ADDR;
 704         ha->flt_region_vpd_nvram = FA_VPD_NVRAM_ADDR;
 705         ha->flt_region_fdt = IS_QLA24XX_TYPE(ha) ? FA_FLASH_DESCR_ADDR_24:
 706             FA_FLASH_DESCR_ADDR;
 707         ha->flt_region_hw_event = !PCI_FUNC(ha->pdev->devfn) ?
 708             FA_HW_EVENT0_ADDR: FA_HW_EVENT1_ADDR;
 709         ha->flt_region_npiv_conf = !PCI_FUNC(ha->pdev->devfn) ?
 710             (IS_QLA24XX_TYPE(ha) ? FA_NPIV_CONF0_ADDR_24: FA_NPIV_CONF0_ADDR):
 711             (IS_QLA24XX_TYPE(ha) ? FA_NPIV_CONF1_ADDR_24: FA_NPIV_CONF1_ADDR);
 712 done:
 713         DEBUG2(qla_printk(KERN_DEBUG, ha, "FLT[%s]: boot=0x%x fw=0x%x "
 714             "vpd_nvram=0x%x fdt=0x%x flt=0x%x hwe=0x%x npiv=0x%x.\n", loc,
 715             ha->flt_region_boot, ha->flt_region_fw, ha->flt_region_vpd_nvram,
 716             ha->flt_region_fdt, ha->flt_region_flt, ha->flt_region_hw_event,
 717             ha->flt_region_npiv_conf));
 718 }
 719
 720 static void
 721 qla2xxx_get_fdt_info(scsi_qla_host_t *vha)
 722 {
 723 #define FLASH_BLK_SIZE_4K       0x1000
 724 #define FLASH_BLK_SIZE_32K      0x8000
 725 #define FLASH_BLK_SIZE_64K      0x10000
 726         const char *loc, *locations[] = { "MID", "FDT" };
 727         uint16_t cnt, chksum;
 728         uint16_t *wptr;
 729         struct qla_fdt_layout *fdt;
 730         uint8_t man_id, flash_id;
 731         uint16_t mid, fid;
 732         struct qla_hw_data *ha = vha->hw;
 733         struct req_que *req = ha->req;
 734
 735         wptr = (uint16_t *)req->ring;
 736         fdt = (struct qla_fdt_layout *)req->ring;
 737         ha->isp_ops->read_optrom(vha, (uint8_t *)req->ring,
 738             ha->flt_region_fdt << 2, OPTROM_BURST_SIZE);
 739         if (*wptr == __constant_cpu_to_le16(0xffff))
 740                 goto no_flash_data;
 741         if (fdt->sig[0] != 'Q' || fdt->sig[1] != 'L' || fdt->sig[2] != 'I' ||
 742             fdt->sig[3] != 'D')
 743                 goto no_flash_data;
 744
 745         for (cnt = 0, chksum = 0; cnt < sizeof(struct qla_fdt_layout) >> 1;
 746             cnt++)
 747                 chksum += le16_to_cpu(*wptr++);
 748         if (chksum) {
 749                 DEBUG2(qla_printk(KERN_INFO, ha, "Inconsistent FDT detected: "
 750                     "checksum=0x%x id=%c version=0x%x.\n", chksum, fdt->sig[0],
 751                     le16_to_cpu(fdt->version)));
 752                 DEBUG9(qla2x00_dump_buffer((uint8_t *)fdt, sizeof(*fdt)));
 753                 goto no_flash_data;
 754         }
 755
 756         loc = locations[1];
 757         mid = le16_to_cpu(fdt->man_id);
 758         fid = le16_to_cpu(fdt->id);
 759         ha->fdt_wrt_disable = fdt->wrt_disable_bits;
 760         ha->fdt_erase_cmd = flash_conf_to_access_addr(0x0300 | fdt->erase_cmd);
 761         ha->fdt_block_size = le32_to_cpu(fdt->block_size);
 762         if (fdt->unprotect_sec_cmd) {
 763                 ha->fdt_unprotect_sec_cmd = flash_conf_to_access_addr(0x0300 |
 764                     fdt->unprotect_sec_cmd);
 765                 ha->fdt_protect_sec_cmd = fdt->protect_sec_cmd ?
 766                     flash_conf_to_access_addr(0x0300 | fdt->protect_sec_cmd):
 767                     flash_conf_to_access_addr(0x0336);
 768         }
 769         goto done;
 770 no_flash_data:
 771         loc = locations[0];
 772         qla24xx_get_flash_manufacturer(ha, &man_id, &flash_id);
 773         mid = man_id;
 774         fid = flash_id;
 775         ha->fdt_wrt_disable = 0x9c;
 776         ha->fdt_erase_cmd = flash_conf_to_access_addr(0x03d8);
 777         switch (man_id) {
 778         case 0xbf: /* STT flash. */
 779                 if (flash_id == 0x8e)
 780                         ha->fdt_block_size = FLASH_BLK_SIZE_64K;
 781                 else
 782                         ha->fdt_block_size = FLASH_BLK_SIZE_32K;
 783
 784                 if (flash_id == 0x80)
 785                         ha->fdt_erase_cmd = flash_conf_to_access_addr(0x0352);
 786                 break;
 787         case 0x13: /* ST M25P80. */
 788                 ha->fdt_block_size = FLASH_BLK_SIZE_64K;
 789                 break;
 790         case 0x1f: /* Atmel 26DF081A. */
 791                 ha->fdt_block_size = FLASH_BLK_SIZE_4K;
 792                 ha->fdt_erase_cmd = flash_conf_to_access_addr(0x0320);
 793                 ha->fdt_unprotect_sec_cmd = flash_conf_to_access_addr(0x0339);
 794                 ha->fdt_protect_sec_cmd = flash_conf_to_access_addr(0x0336);
 795                 break;
 796         default:
 797                 /* Default to 64 kb sector size. */
 798                 ha->fdt_block_size = FLASH_BLK_SIZE_64K;
 799                 break;
 800         }
 801 done:
 802         DEBUG2(qla_printk(KERN_DEBUG, ha, "FDT[%s]: (0x%x/0x%x) erase=0x%x "
 803             "pro=%x upro=%x wrtd=0x%x blk=0x%x.\n", loc, mid, fid,
 804             ha->fdt_erase_cmd, ha->fdt_protect_sec_cmd,
 805             ha->fdt_unprotect_sec_cmd, ha->fdt_wrt_disable,
 806             ha->fdt_block_size));
 807 }
 808
 809 int
 810 qla2xxx_get_flash_info(scsi_qla_host_t *vha)
 811 {
 812         int ret;
 813         uint32_t flt_addr;
 814         struct qla_hw_data *ha = vha->hw;
 815
 816         if (!IS_QLA24XX_TYPE(ha) && !IS_QLA25XX(ha))
 817                 return QLA_SUCCESS;
 818
 819         ret = qla2xxx_find_flt_start(vha, &flt_addr);
 820         if (ret != QLA_SUCCESS)
 821                 return ret;
 822
 823         qla2xxx_get_flt_info(vha, flt_addr);
 824         qla2xxx_get_fdt_info(vha);
 825
 826         return QLA_SUCCESS;
 827 }
 828
 829 void
 830 qla2xxx_flash_npiv_conf(scsi_qla_host_t *vha)
 831 {
 832 #define NPIV_CONFIG_SIZE        (16*1024)
 833         void *data;
 834         uint16_t *wptr;
 835         uint16_t cnt, chksum;
 836         struct qla_npiv_header hdr;
 837         struct qla_npiv_entry *entry;
 838         struct qla_hw_data *ha = vha->hw;
 839
 840         if (!IS_QLA24XX_TYPE(ha) && !IS_QLA25XX(ha))
 841                 return;
 842
 843         ha->isp_ops->read_optrom(vha, (uint8_t *)&hdr,
 844             ha->flt_region_npiv_conf << 2, sizeof(struct qla_npiv_header));
 845         if (hdr.version == __constant_cpu_to_le16(0xffff))
 846                 return;
 847         if (hdr.version != __constant_cpu_to_le16(1)) {
 848                 DEBUG2(qla_printk(KERN_INFO, ha, "Unsupported NPIV-Config "
 849                     "detected: version=0x%x entries=0x%x checksum=0x%x.\n",
 850                     le16_to_cpu(hdr.version), le16_to_cpu(hdr.entries),
 851                     le16_to_cpu(hdr.checksum)));
 852                 return;
 853         }
 854
 855         data = kmalloc(NPIV_CONFIG_SIZE, GFP_KERNEL);
 856         if (!data) {
 857                 DEBUG2(qla_printk(KERN_INFO, ha, "NPIV-Config: Unable to "
 858                     "allocate memory.\n"));
 859                 return;
 860         }
 861
 862         ha->isp_ops->read_optrom(vha, (uint8_t *)data,
 863             ha->flt_region_npiv_conf << 2, NPIV_CONFIG_SIZE);
 864
 865         cnt = (sizeof(struct qla_npiv_header) + le16_to_cpu(hdr.entries) *
 866             sizeof(struct qla_npiv_entry)) >> 1;
 867         for (wptr = data, chksum = 0; cnt; cnt--)
 868                 chksum += le16_to_cpu(*wptr++);
 869         if (chksum) {
 870                 DEBUG2(qla_printk(KERN_INFO, ha, "Inconsistent NPIV-Config "
 871                     "detected: version=0x%x entries=0x%x checksum=0x%x.\n",
 872                     le16_to_cpu(hdr.version), le16_to_cpu(hdr.entries),
 873                     chksum));
 874                 goto done;
 875         }
 876
 877         entry = data + sizeof(struct qla_npiv_header);
 878         cnt = le16_to_cpu(hdr.entries);
 879         for ( ; cnt; cnt--, entry++) {
 880                 uint16_t flags;
 881                 struct fc_vport_identifiers vid;
 882                 struct fc_vport *vport;
 883
 884                 flags = le16_to_cpu(entry->flags);
 885                 if (flags == 0xffff)
 886                         continue;
 887                 if ((flags & BIT_0) == 0)
 888                         continue;
 889
 890                 memset(&vid, 0, sizeof(vid));
 891                 vid.roles = FC_PORT_ROLE_FCP_INITIATOR;
 892                 vid.vport_type = FC_PORTTYPE_NPIV;
 893                 vid.disable = false;
 894                 vid.port_name = wwn_to_u64(entry->port_name);
 895                 vid.node_name = wwn_to_u64(entry->node_name);
 896
 897                 DEBUG2(qla_printk(KERN_DEBUG, ha, "NPIV[%02x]: wwpn=%llx "
 898                     "wwnn=%llx vf_id=0x%x qos=0x%x.\n", cnt, vid.port_name,
 899                     vid.node_name, le16_to_cpu(entry->vf_id),
 900                     le16_to_cpu(entry->qos)));
 901
 902                 vport = fc_vport_create(vha->host, 0, &vid);
 903                 if (!vport)
 904                         qla_printk(KERN_INFO, ha, "NPIV-Config: Failed to "
 905                             "create vport [%02x]: wwpn=%llx wwnn=%llx.\n", cnt,
 906                             vid.port_name, vid.node_name);
 907         }
 908 done:
 909         kfree(data);
 910 }
 911
 912 static void
 913 qla24xx_unprotect_flash(struct qla_hw_data *ha)
 914 {
 915         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
 916
 917         /* Enable flash write. */
 918         WRT_REG_DWORD(&reg->ctrl_status,
 919             RD_REG_DWORD(&reg->ctrl_status) | CSRX_FLASH_ENABLE);
 920         RD_REG_DWORD(&reg->ctrl_status);        /* PCI Posting. */
 921
 922         if (!ha->fdt_wrt_disable)
 923                 return;
 924
 925         /* Disable flash write-protection. */
 926         qla24xx_write_flash_dword(ha, flash_conf_to_access_addr(0x101), 0);
 927         /* Some flash parts need an additional zero-write to clear bits.*/
 928         qla24xx_write_flash_dword(ha, flash_conf_to_access_addr(0x101), 0);
 929 }
 930
 931 static void
 932 qla24xx_protect_flash(struct qla_hw_data *ha)
 933 {
 934         uint32_t cnt;
 935         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
 936
 937         if (!ha->fdt_wrt_disable)
 938                 goto skip_wrt_protect;
 939
 940         /* Enable flash write-protection and wait for completion. */
 941         qla24xx_write_flash_dword(ha, flash_conf_to_access_addr(0x101),
 942             ha->fdt_wrt_disable);
 943         for (cnt = 300; cnt &&
 944             qla24xx_read_flash_dword(ha,
 945                     flash_conf_to_access_addr(0x005)) & BIT_0;
 946             cnt--) {
 947                 udelay(10);
 948         }
 949
 950 skip_wrt_protect:
 951         /* Disable flash write. */
 952         WRT_REG_DWORD(&reg->ctrl_status,
 953             RD_REG_DWORD(&reg->ctrl_status) & ~CSRX_FLASH_ENABLE);
 954         RD_REG_DWORD(&reg->ctrl_status);        /* PCI Posting. */
 955 }
 956
 957 static int
 958 qla24xx_write_flash_data(scsi_qla_host_t *vha, uint32_t *dwptr, uint32_t faddr,
 959     uint32_t dwords)
 960 {
 961         int ret;
 962         uint32_t liter, miter;
 963         uint32_t sec_mask, rest_addr;
 964         uint32_t fdata, findex;
 965         dma_addr_t optrom_dma;
 966         void *optrom = NULL;
 967         uint32_t *s, *d;
 968         struct qla_hw_data *ha = vha->hw;
 969
 970         ret = QLA_SUCCESS;
 971
 972         /* Prepare burst-capable write on supported ISPs. */
 973         if (IS_QLA25XX(ha) && !(faddr & 0xfff) &&
 974             dwords > OPTROM_BURST_DWORDS) {
 975                 optrom = dma_alloc_coherent(&ha->pdev->dev, OPTROM_BURST_SIZE,
 976                     &optrom_dma, GFP_KERNEL);
 977                 if (!optrom) {
 978                         qla_printk(KERN_DEBUG, ha,
 979                             "Unable to allocate memory for optrom burst write "
 980                             "(%x KB).\n", OPTROM_BURST_SIZE / 1024);
 981                 }
 982         }
 983
 984         rest_addr = (ha->fdt_block_size >> 2) - 1;
 985         sec_mask = 0x80000 - (ha->fdt_block_size >> 2);
 986
 987         qla24xx_unprotect_flash(ha);
 988
 989         for (liter = 0; liter < dwords; liter++, faddr++, dwptr++) {
 990
 991                 findex = faddr;
 992                 fdata = (findex & sec_mask) << 2;
 993
 994                 /* Are we at the beginning of a sector? */
 995                 if ((findex & rest_addr) == 0) {
 996                         /* Do sector unprotect. */
 997                         if (ha->fdt_unprotect_sec_cmd)
 998                                 qla24xx_write_flash_dword(ha,
 999                                     ha->fdt_unprotect_sec_cmd,
1000                                     (fdata & 0xff00) | ((fdata << 16) &
1001                                     0xff0000) | ((fdata >> 16) & 0xff));
1002                         ret = qla24xx_write_flash_dword(ha, ha->fdt_erase_cmd,
1003                             (fdata & 0xff00) |((fdata << 16) &
1004                             0xff0000) | ((fdata >> 16) & 0xff));
1005                         if (ret != QLA_SUCCESS) {
1006                                 DEBUG9(qla_printk("Unable to flash sector: "
1007                                     "address=%x.\n", faddr));
1008                                 break;
1009                         }
1010                 }
1011
1012                 /* Go with burst-write. */
1013                 if (optrom && (liter + OPTROM_BURST_DWORDS) <= dwords) {
1014                         /* Copy data to DMA'ble buffer. */
1015                         for (miter = 0, s = optrom, d = dwptr;
1016                             miter < OPTROM_BURST_DWORDS; miter++, s++, d++)
1017                                 *s = cpu_to_le32(*d);
1018
1019                         ret = qla2x00_load_ram(vha, optrom_dma,
1020                             flash_data_to_access_addr(faddr),
1021                             OPTROM_BURST_DWORDS);
1022                         if (ret != QLA_SUCCESS) {
1023                                 qla_printk(KERN_WARNING, ha,
1024                                     "Unable to burst-write optrom segment "
1025                                     "(%x/%x/%llx).\n", ret,
1026                                     flash_data_to_access_addr(faddr),
1027                                     (unsigned long long)optrom_dma);
1028                                 qla_printk(KERN_WARNING, ha,
1029                                     "Reverting to slow-write.\n");
1030
1031                                 dma_free_coherent(&ha->pdev->dev,
1032                                     OPTROM_BURST_SIZE, optrom, optrom_dma);
1033                                 optrom = NULL;
1034                         } else {
1035                                 liter += OPTROM_BURST_DWORDS - 1;
1036                                 faddr += OPTROM_BURST_DWORDS - 1;
1037                                 dwptr += OPTROM_BURST_DWORDS - 1;
1038                                 continue;
1039                         }
1040                 }
1041
1042                 ret = qla24xx_write_flash_dword(ha,
1043                     flash_data_to_access_addr(faddr), cpu_to_le32(*dwptr));
1044                 if (ret != QLA_SUCCESS) {
1045                         DEBUG9(printk("%s(%ld) Unable to program flash "
1046                             "address=%x data=%x.\n", __func__,
1047                             vha->host_no, faddr, *dwptr));
1048                         break;
1049                 }
1050
1051                 /* Do sector protect. */
1052                 if (ha->fdt_unprotect_sec_cmd &&
1053                     ((faddr & rest_addr) == rest_addr))
1054                         qla24xx_write_flash_dword(ha,
1055                             ha->fdt_protect_sec_cmd,
1056                             (fdata & 0xff00) | ((fdata << 16) &
1057                             0xff0000) | ((fdata >> 16) & 0xff));
1058         }
1059
1060         qla24xx_protect_flash(ha);
1061
1062         if (optrom)
1063                 dma_free_coherent(&ha->pdev->dev,
1064                     OPTROM_BURST_SIZE, optrom, optrom_dma);
1065
1066         return ret;
1067 }
1068
1069 uint8_t *
1070 qla2x00_read_nvram_data(scsi_qla_host_t *vha, uint8_t *buf, uint32_t naddr,
1071     uint32_t bytes)
1072 {
1073         uint32_t i;
1074         uint16_t *wptr;
1075         struct qla_hw_data *ha = vha->hw;
1076
1077         /* Word reads to NVRAM via registers. */
1078         wptr = (uint16_t *)buf;
1079         qla2x00_lock_nvram_access(ha);
1080         for (i = 0; i < bytes >> 1; i++, naddr++)
1081                 wptr[i] = cpu_to_le16(qla2x00_get_nvram_word(ha,
1082                     naddr));
1083         qla2x00_unlock_nvram_access(ha);
1084
1085         return buf;
1086 }
1087
1088 uint8_t *
1089 qla24xx_read_nvram_data(scsi_qla_host_t *vha, uint8_t *buf, uint32_t naddr,
1090     uint32_t bytes)
1091 {
1092         uint32_t i;
1093         uint32_t *dwptr;
1094
1095         /* Dword reads to flash. */
1096         dwptr = (uint32_t *)buf;
1097         for (i = 0; i < bytes >> 2; i++, naddr++)
1098                 dwptr[i] = cpu_to_le32(qla24xx_read_flash_dword(vha->hw,
1099                     nvram_data_to_access_addr(naddr)));
1100
1101         return buf;
1102 }
1103
1104 int
1105 qla2x00_write_nvram_data(scsi_qla_host_t *vha, uint8_t *buf, uint32_t naddr,
1106     uint32_t bytes)
1107 {
1108         int ret, stat;
1109         uint32_t i;
1110         uint16_t *wptr;
1111         unsigned long flags;
1112         struct qla_hw_data *ha = vha->hw;
1113
1114         ret = QLA_SUCCESS;
1115
1116         spin_lock_irqsave(&ha->hardware_lock, flags);
1117         qla2x00_lock_nvram_access(ha);
1118
1119         /* Disable NVRAM write-protection. */
1120         stat = qla2x00_clear_nvram_protection(ha);
1121
1122         wptr = (uint16_t *)buf;
1123         for (i = 0; i < bytes >> 1; i++, naddr++) {
1124                 qla2x00_write_nvram_word(ha, naddr,
1125                     cpu_to_le16(*wptr));
1126                 wptr++;
1127         }
1128
1129         /* Enable NVRAM write-protection. */
1130         qla2x00_set_nvram_protection(ha, stat);
1131
1132         qla2x00_unlock_nvram_access(ha);
1133         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1134
1135         return ret;
1136 }
1137
1138 int
1139 qla24xx_write_nvram_data(scsi_qla_host_t *vha, uint8_t *buf, uint32_t naddr,
1140     uint32_t bytes)
1141 {
1142         int ret;
1143         uint32_t i;
1144         uint32_t *dwptr;
1145         struct qla_hw_data *ha = vha->hw;
1146         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1147
1148         ret = QLA_SUCCESS;
1149
1150         /* Enable flash write. */
1151         WRT_REG_DWORD(&reg->ctrl_status,
1152             RD_REG_DWORD(&reg->ctrl_status) | CSRX_FLASH_ENABLE);
1153         RD_REG_DWORD(&reg->ctrl_status);        /* PCI Posting. */
1154
1155         /* Disable NVRAM write-protection. */
1156         qla24xx_write_flash_dword(ha, nvram_conf_to_access_addr(0x101),
1157             0);
1158         qla24xx_write_flash_dword(ha, nvram_conf_to_access_addr(0x101),
1159             0);
1160
1161         /* Dword writes to flash. */
1162         dwptr = (uint32_t *)buf;
1163         for (i = 0; i < bytes >> 2; i++, naddr++, dwptr++) {
1164                 ret = qla24xx_write_flash_dword(ha,
1165                     nvram_data_to_access_addr(naddr),
1166                     cpu_to_le32(*dwptr));
1167                 if (ret != QLA_SUCCESS) {
1168                         DEBUG9(qla_printk("Unable to program nvram address=%x "
1169                             "data=%x.\n", naddr, *dwptr));
1170                         break;
1171                 }
1172         }
1173
1174         /* Enable NVRAM write-protection. */
1175         qla24xx_write_flash_dword(ha, nvram_conf_to_access_addr(0x101),
1176             0x8c);
1177
1178         /* Disable flash write. */
1179         WRT_REG_DWORD(&reg->ctrl_status,
1180             RD_REG_DWORD(&reg->ctrl_status) & ~CSRX_FLASH_ENABLE);
1181         RD_REG_DWORD(&reg->ctrl_status);        /* PCI Posting. */
1182
1183         return ret;
1184 }
1185
1186 uint8_t *
1187 qla25xx_read_nvram_data(scsi_qla_host_t *vha, uint8_t *buf, uint32_t naddr,
1188     uint32_t bytes)
1189 {
1190         uint32_t i;
1191         uint32_t *dwptr;
1192         struct qla_hw_data *ha = vha->hw;
1193
1194         /* Dword reads to flash. */
1195         dwptr = (uint32_t *)buf;
1196         for (i = 0; i < bytes >> 2; i++, naddr++)
1197                 dwptr[i] = cpu_to_le32(qla24xx_read_flash_dword(ha,
1198                     flash_data_to_access_addr(ha->flt_region_vpd_nvram |
1199                     naddr)));
1200
1201         return buf;
1202 }
1203
1204 int
1205 qla25xx_write_nvram_data(scsi_qla_host_t *vha, uint8_t *buf, uint32_t naddr,
1206     uint32_t bytes)
1207 {
1208         struct qla_hw_data *ha = vha->hw;
1209 #define RMW_BUFFER_SIZE (64 * 1024)
1210         uint8_t *dbuf;
1211
1212         dbuf = vmalloc(RMW_BUFFER_SIZE);
1213         if (!dbuf)
1214                 return QLA_MEMORY_ALLOC_FAILED;
1215         ha->isp_ops->read_optrom(vha, dbuf, ha->flt_region_vpd_nvram << 2,
1216             RMW_BUFFER_SIZE);
1217         memcpy(dbuf + (naddr << 2), buf, bytes);
1218         ha->isp_ops->write_optrom(vha, dbuf, ha->flt_region_vpd_nvram << 2,
1219             RMW_BUFFER_SIZE);
1220         vfree(dbuf);
1221
1222         return QLA_SUCCESS;
1223 }
1224
1225 static inline void
1226 qla2x00_flip_colors(struct qla_hw_data *ha, uint16_t *pflags)
1227 {
1228         if (IS_QLA2322(ha)) {
1229                 /* Flip all colors. */
1230                 if (ha->beacon_color_state == QLA_LED_ALL_ON) {
1231                         /* Turn off. */
1232                         ha->beacon_color_state = 0;
1233                         *pflags = GPIO_LED_ALL_OFF;
1234                 } else {
1235                         /* Turn on. */
1236                         ha->beacon_color_state = QLA_LED_ALL_ON;
1237                         *pflags = GPIO_LED_RGA_ON;
1238                 }
1239         } else {
1240                 /* Flip green led only. */
1241                 if (ha->beacon_color_state == QLA_LED_GRN_ON) {
1242                         /* Turn off. */
1243                         ha->beacon_color_state = 0;
1244                         *pflags = GPIO_LED_GREEN_OFF_AMBER_OFF;
1245                 } else {
1246                         /* Turn on. */
1247                         ha->beacon_color_state = QLA_LED_GRN_ON;
1248                         *pflags = GPIO_LED_GREEN_ON_AMBER_OFF;
1249                 }
1250         }
1251 }
1252
1253 #define PIO_REG(h, r) ((h)->pio_address + offsetof(struct device_reg_2xxx, r))
1254
1255 void
1256 qla2x00_beacon_blink(struct scsi_qla_host *vha)
1257 {
1258         uint16_t gpio_enable;
1259         uint16_t gpio_data;
1260         uint16_t led_color = 0;
1261         unsigned long flags;
1262         struct qla_hw_data *ha = vha->hw;
1263         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1264
1265         spin_lock_irqsave(&ha->hardware_lock, flags);
1266
1267         /* Save the Original GPIOE. */
1268         if (ha->pio_address) {
1269                 gpio_enable = RD_REG_WORD_PIO(PIO_REG(ha, gpioe));
1270                 gpio_data = RD_REG_WORD_PIO(PIO_REG(ha, gpiod));
1271         } else {
1272                 gpio_enable = RD_REG_WORD(&reg->gpioe);
1273                 gpio_data = RD_REG_WORD(&reg->gpiod);
1274         }
1275
1276         /* Set the modified gpio_enable values */
1277         gpio_enable |= GPIO_LED_MASK;
1278
1279         if (ha->pio_address) {
1280                 WRT_REG_WORD_PIO(PIO_REG(ha, gpioe), gpio_enable);
1281         } else {
1282                 WRT_REG_WORD(&reg->gpioe, gpio_enable);
1283                 RD_REG_WORD(&reg->gpioe);
1284         }
1285
1286         qla2x00_flip_colors(ha, &led_color);
1287
1288         /* Clear out any previously set LED color. */
1289         gpio_data &= ~GPIO_LED_MASK;
1290
1291         /* Set the new input LED color to GPIOD. */
1292         gpio_data |= led_color;
1293
1294         /* Set the modified gpio_data values */
1295         if (ha->pio_address) {
1296                 WRT_REG_WORD_PIO(PIO_REG(ha, gpiod), gpio_data);
1297         } else {
1298                 WRT_REG_WORD(&reg->gpiod, gpio_data);
1299                 RD_REG_WORD(&reg->gpiod);
1300         }
1301
1302         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1303 }
1304
1305 int
1306 qla2x00_beacon_on(struct scsi_qla_host *vha)
1307 {
1308         uint16_t gpio_enable;
1309         uint16_t gpio_data;
1310         unsigned long flags;
1311         struct qla_hw_data *ha = vha->hw;
1312         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1313
1314         ha->fw_options[1] &= ~FO1_SET_EMPHASIS_SWING;
1315         ha->fw_options[1] |= FO1_DISABLE_GPIO6_7;
1316
1317         if (qla2x00_set_fw_options(vha, ha->fw_options) != QLA_SUCCESS) {
1318                 qla_printk(KERN_WARNING, ha,
1319                     "Unable to update fw options (beacon on).\n");
1320                 return QLA_FUNCTION_FAILED;
1321         }
1322
1323         /* Turn off LEDs. */
1324         spin_lock_irqsave(&ha->hardware_lock, flags);
1325         if (ha->pio_address) {
1326                 gpio_enable = RD_REG_WORD_PIO(PIO_REG(ha, gpioe));
1327                 gpio_data = RD_REG_WORD_PIO(PIO_REG(ha, gpiod));
1328         } else {
1329                 gpio_enable = RD_REG_WORD(&reg->gpioe);
1330                 gpio_data = RD_REG_WORD(&reg->gpiod);
1331         }
1332         gpio_enable |= GPIO_LED_MASK;
1333
1334         /* Set the modified gpio_enable values. */
1335         if (ha->pio_address) {
1336                 WRT_REG_WORD_PIO(PIO_REG(ha, gpioe), gpio_enable);
1337         } else {
1338                 WRT_REG_WORD(&reg->gpioe, gpio_enable);
1339                 RD_REG_WORD(&reg->gpioe);
1340         }
1341
1342         /* Clear out previously set LED colour. */
1343         gpio_data &= ~GPIO_LED_MASK;
1344         if (ha->pio_address) {
1345                 WRT_REG_WORD_PIO(PIO_REG(ha, gpiod), gpio_data);
1346         } else {
1347                 WRT_REG_WORD(&reg->gpiod, gpio_data);
1348                 RD_REG_WORD(&reg->gpiod);
1349         }
1350         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1351
1352         /*
1353          * Let the per HBA timer kick off the blinking process based on
1354          * the following flags. No need to do anything else now.
1355          */
1356         ha->beacon_blink_led = 1;
1357         ha->beacon_color_state = 0;
1358
1359         return QLA_SUCCESS;
1360 }
1361
1362 int
1363 qla2x00_beacon_off(struct scsi_qla_host *vha)
1364 {
1365         int rval = QLA_SUCCESS;
1366         struct qla_hw_data *ha = vha->hw;
1367
1368         ha->beacon_blink_led = 0;
1369
1370         /* Set the on flag so when it gets flipped it will be off. */
1371         if (IS_QLA2322(ha))
1372                 ha->beacon_color_state = QLA_LED_ALL_ON;
1373         else
1374                 ha->beacon_color_state = QLA_LED_GRN_ON;
1375
1376         ha->isp_ops->beacon_blink(vha); /* This turns green LED off */
1377
1378         ha->fw_options[1] &= ~FO1_SET_EMPHASIS_SWING;
1379         ha->fw_options[1] &= ~FO1_DISABLE_GPIO6_7;
1380
1381         rval = qla2x00_set_fw_options(vha, ha->fw_options);
1382         if (rval != QLA_SUCCESS)
1383                 qla_printk(KERN_WARNING, ha,
1384                     "Unable to update fw options (beacon off).\n");
1385         return rval;
1386 }
1387
1388
1389 static inline void
1390 qla24xx_flip_colors(struct qla_hw_data *ha, uint16_t *pflags)
1391 {
1392         /* Flip all colors. */
1393         if (ha->beacon_color_state == QLA_LED_ALL_ON) {
1394                 /* Turn off. */
1395                 ha->beacon_color_state = 0;
1396                 *pflags = 0;
1397         } else {
1398                 /* Turn on. */
1399                 ha->beacon_color_state = QLA_LED_ALL_ON;
1400                 *pflags = GPDX_LED_YELLOW_ON | GPDX_LED_AMBER_ON;
1401         }
1402 }
1403
1404 void
1405 qla24xx_beacon_blink(struct scsi_qla_host *vha)
1406 {
1407         uint16_t led_color = 0;
1408         uint32_t gpio_data;
1409         unsigned long flags;
1410         struct qla_hw_data *ha = vha->hw;
1411         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1412
1413         /* Save the Original GPIOD. */
1414         spin_lock_irqsave(&ha->hardware_lock, flags);
1415         gpio_data = RD_REG_DWORD(&reg->gpiod);
1416
1417         /* Enable the gpio_data reg for update. */
1418         gpio_data |= GPDX_LED_UPDATE_MASK;
1419
1420         WRT_REG_DWORD(&reg->gpiod, gpio_data);
1421         gpio_data = RD_REG_DWORD(&reg->gpiod);
1422
1423         /* Set the color bits. */
1424         qla24xx_flip_colors(ha, &led_color);
1425
1426         /* Clear out any previously set LED color. */
1427         gpio_data &= ~GPDX_LED_COLOR_MASK;
1428
1429         /* Set the new input LED color to GPIOD. */
1430         gpio_data |= led_color;
1431
1432         /* Set the modified gpio_data values. */
1433         WRT_REG_DWORD(&reg->gpiod, gpio_data);
1434         gpio_data = RD_REG_DWORD(&reg->gpiod);
1435         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1436 }
1437
1438 int
1439 qla24xx_beacon_on(struct scsi_qla_host *vha)
1440 {
1441         uint32_t gpio_data;
1442         unsigned long flags;
1443         struct qla_hw_data *ha = vha->hw;
1444         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1445
1446         if (ha->beacon_blink_led == 0) {
1447                 /* Enable firmware for update */
1448                 ha->fw_options[1] |= ADD_FO1_DISABLE_GPIO_LED_CTRL;
1449
1450                 if (qla2x00_set_fw_options(vha, ha->fw_options) != QLA_SUCCESS)
1451                         return QLA_FUNCTION_FAILED;
1452
1453                 if (qla2x00_get_fw_options(vha, ha->fw_options) !=
1454                     QLA_SUCCESS) {
1455                         qla_printk(KERN_WARNING, ha,
1456                             "Unable to update fw options (beacon on).\n");
1457                         return QLA_FUNCTION_FAILED;
1458                 }
1459
1460                 spin_lock_irqsave(&ha->hardware_lock, flags);
1461                 gpio_data = RD_REG_DWORD(&reg->gpiod);
1462
1463                 /* Enable the gpio_data reg for update. */
1464                 gpio_data |= GPDX_LED_UPDATE_MASK;
1465                 WRT_REG_DWORD(&reg->gpiod, gpio_data);
1466                 RD_REG_DWORD(&reg->gpiod);
1467
1468                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1469         }
1470
1471         /* So all colors blink together. */
1472         ha->beacon_color_state = 0;
1473
1474         /* Let the per HBA timer kick off the blinking process. */
1475         ha->beacon_blink_led = 1;
1476
1477         return QLA_SUCCESS;
1478 }
1479
1480 int
1481 qla24xx_beacon_off(struct scsi_qla_host *vha)
1482 {
1483         uint32_t gpio_data;
1484         unsigned long flags;
1485         struct qla_hw_data *ha = vha->hw;
1486         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1487
1488         ha->beacon_blink_led = 0;
1489         ha->beacon_color_state = QLA_LED_ALL_ON;
1490
1491         ha->isp_ops->beacon_blink(vha); /* Will flip to all off. */
1492
1493         /* Give control back to firmware. */
1494         spin_lock_irqsave(&ha->hardware_lock, flags);
1495         gpio_data = RD_REG_DWORD(&reg->gpiod);
1496
1497         /* Disable the gpio_data reg for update. */
1498         gpio_data &= ~GPDX_LED_UPDATE_MASK;
1499         WRT_REG_DWORD(&reg->gpiod, gpio_data);
1500         RD_REG_DWORD(&reg->gpiod);
1501         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1502
1503         ha->fw_options[1] &= ~ADD_FO1_DISABLE_GPIO_LED_CTRL;
1504
1505         if (qla2x00_set_fw_options(vha, ha->fw_options) != QLA_SUCCESS) {
1506                 qla_printk(KERN_WARNING, ha,
1507                     "Unable to update fw options (beacon off).\n");
1508                 return QLA_FUNCTION_FAILED;
1509         }
1510
1511         if (qla2x00_get_fw_options(vha, ha->fw_options) != QLA_SUCCESS) {
1512                 qla_printk(KERN_WARNING, ha,
1513                     "Unable to get fw options (beacon off).\n");
1514                 return QLA_FUNCTION_FAILED;
1515         }
1516
1517         return QLA_SUCCESS;
1518 }
1519
1520
1521 /*
1522  * Flash support routines
1523  */
1524
1525 /**
1526  * qla2x00_flash_enable() - Setup flash for reading and writing.
1527  * @ha: HA context
1528  */
1529 static void
1530 qla2x00_flash_enable(struct qla_hw_data *ha)
1531 {
1532         uint16_t data;
1533         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1534
1535         data = RD_REG_WORD(&reg->ctrl_status);
1536         data |= CSR_FLASH_ENABLE;
1537         WRT_REG_WORD(&reg->ctrl_status, data);
1538         RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
1539 }
1540
1541 /**
1542  * qla2x00_flash_disable() - Disable flash and allow RISC to run.
1543  * @ha: HA context
1544  */
1545 static void
1546 qla2x00_flash_disable(struct qla_hw_data *ha)
1547 {
1548         uint16_t data;
1549         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1550
1551         data = RD_REG_WORD(&reg->ctrl_status);
1552         data &= ~(CSR_FLASH_ENABLE);
1553         WRT_REG_WORD(&reg->ctrl_status, data);
1554         RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
1555 }
1556
1557 /**
1558  * qla2x00_read_flash_byte() - Reads a byte from flash
1559  * @ha: HA context
1560  * @addr: Address in flash to read
1561  *
1562  * A word is read from the chip, but, only the lower byte is valid.
1563  *
1564  * Returns the byte read from flash @addr.
1565  */
1566 static uint8_t
1567 qla2x00_read_flash_byte(struct qla_hw_data *ha, uint32_t addr)
1568 {
1569         uint16_t data;
1570         uint16_t bank_select;
1571         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1572
1573         bank_select = RD_REG_WORD(&reg->ctrl_status);
1574
1575         if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
1576                 /* Specify 64K address range: */
1577                 /*  clear out Module Select and Flash Address bits [19:16]. */
1578                 bank_select &= ~0xf8;
1579                 bank_select |= addr >> 12 & 0xf0;
1580                 bank_select |= CSR_FLASH_64K_BANK;
1581                 WRT_REG_WORD(&reg->ctrl_status, bank_select);
1582                 RD_REG_WORD(&reg->ctrl_status); /* PCI Posting. */
1583
1584                 WRT_REG_WORD(&reg->flash_address, (uint16_t)addr);
1585                 data = RD_REG_WORD(&reg->flash_data);
1586
1587                 return (uint8_t)data;
1588         }
1589
1590         /* Setup bit 16 of flash address. */
1591         if ((addr & BIT_16) && ((bank_select & CSR_FLASH_64K_BANK) == 0)) {
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         } else if (((addr & BIT_16) == 0) &&
1596             (bank_select & CSR_FLASH_64K_BANK)) {
1597                 bank_select &= ~(CSR_FLASH_64K_BANK);
1598                 WRT_REG_WORD(&reg->ctrl_status, bank_select);
1599                 RD_REG_WORD(&reg->ctrl_status); /* PCI Posting. */
1600         }
1601
1602         /* Always perform IO mapped accesses to the FLASH registers. */
1603         if (ha->pio_address) {
1604                 uint16_t data2;
1605
1606                 WRT_REG_WORD_PIO(PIO_REG(ha, flash_address), (uint16_t)addr);
1607                 do {
1608                         data = RD_REG_WORD_PIO(PIO_REG(ha, flash_data));
1609                         barrier();
1610                         cpu_relax();
1611                         data2 = RD_REG_WORD_PIO(PIO_REG(ha, flash_data));
1612                 } while (data != data2);
1613         } else {
1614                 WRT_REG_WORD(&reg->flash_address, (uint16_t)addr);
1615                 data = qla2x00_debounce_register(&reg->flash_data);
1616         }
1617
1618         return (uint8_t)data;
1619 }
1620
1621 /**
1622  * qla2x00_write_flash_byte() - Write a byte to flash
1623  * @ha: HA context
1624  * @addr: Address in flash to write
1625  * @data: Data to write
1626  */
1627 static void
1628 qla2x00_write_flash_byte(struct qla_hw_data *ha, uint32_t addr, uint8_t data)
1629 {
1630         uint16_t bank_select;
1631         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1632
1633         bank_select = RD_REG_WORD(&reg->ctrl_status);
1634         if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
1635                 /* Specify 64K address range: */
1636                 /*  clear out Module Select and Flash Address bits [19:16]. */
1637                 bank_select &= ~0xf8;
1638                 bank_select |= addr >> 12 & 0xf0;
1639                 bank_select |= CSR_FLASH_64K_BANK;
1640                 WRT_REG_WORD(&reg->ctrl_status, bank_select);
1641                 RD_REG_WORD(&reg->ctrl_status); /* PCI Posting. */
1642
1643                 WRT_REG_WORD(&reg->flash_address, (uint16_t)addr);
1644                 RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
1645                 WRT_REG_WORD(&reg->flash_data, (uint16_t)data);
1646                 RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
1647
1648                 return;
1649         }
1650
1651         /* Setup bit 16 of flash address. */
1652         if ((addr & BIT_16) && ((bank_select & CSR_FLASH_64K_BANK) == 0)) {
1653                 bank_select |= CSR_FLASH_64K_BANK;
1654                 WRT_REG_WORD(&reg->ctrl_status, bank_select);
1655                 RD_REG_WORD(&reg->ctrl_status); /* PCI Posting. */
1656         } else if (((addr & BIT_16) == 0) &&
1657             (bank_select & CSR_FLASH_64K_BANK)) {
1658                 bank_select &= ~(CSR_FLASH_64K_BANK);
1659                 WRT_REG_WORD(&reg->ctrl_status, bank_select);
1660                 RD_REG_WORD(&reg->ctrl_status); /* PCI Posting. */
1661         }
1662
1663         /* Always perform IO mapped accesses to the FLASH registers. */
1664         if (ha->pio_address) {
1665                 WRT_REG_WORD_PIO(PIO_REG(ha, flash_address), (uint16_t)addr);
1666                 WRT_REG_WORD_PIO(PIO_REG(ha, flash_data), (uint16_t)data);
1667         } else {
1668                 WRT_REG_WORD(&reg->flash_address, (uint16_t)addr);
1669                 RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
1670                 WRT_REG_WORD(&reg->flash_data, (uint16_t)data);
1671                 RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
1672         }
1673 }
1674
1675 /**
1676  * qla2x00_poll_flash() - Polls flash for completion.
1677  * @ha: HA context
1678  * @addr: Address in flash to poll
1679  * @poll_data: Data to be polled
1680  * @man_id: Flash manufacturer ID
1681  * @flash_id: Flash ID
1682  *
1683  * This function polls the device until bit 7 of what is read matches data
1684  * bit 7 or until data bit 5 becomes a 1.  If that hapens, the flash ROM timed
1685  * out (a fatal error).  The flash book recommeds reading bit 7 again after
1686  * reading bit 5 as a 1.
1687  *
1688  * Returns 0 on success, else non-zero.
1689  */
1690 static int
1691 qla2x00_poll_flash(struct qla_hw_data *ha, uint32_t addr, uint8_t poll_data,
1692     uint8_t man_id, uint8_t flash_id)
1693 {
1694         int status;
1695         uint8_t flash_data;
1696         uint32_t cnt;
1697
1698         status = 1;
1699
1700         /* Wait for 30 seconds for command to finish. */
1701         poll_data &= BIT_7;
1702         for (cnt = 3000000; cnt; cnt--) {
1703                 flash_data = qla2x00_read_flash_byte(ha, addr);
1704                 if ((flash_data & BIT_7) == poll_data) {
1705                         status = 0;
1706                         break;
1707                 }
1708
1709                 if (man_id != 0x40 && man_id != 0xda) {
1710                         if ((flash_data & BIT_5) && cnt > 2)
1711                                 cnt = 2;
1712                 }
1713                 udelay(10);
1714                 barrier();
1715                 cond_resched();
1716         }
1717         return status;
1718 }
1719
1720 /**
1721  * qla2x00_program_flash_address() - Programs a flash address
1722  * @ha: HA context
1723  * @addr: Address in flash to program
1724  * @data: Data to be written in flash
1725  * @man_id: Flash manufacturer ID
1726  * @flash_id: Flash ID
1727  *
1728  * Returns 0 on success, else non-zero.
1729  */
1730 static int
1731 qla2x00_program_flash_address(struct qla_hw_data *ha, uint32_t addr,
1732     uint8_t data, uint8_t man_id, uint8_t flash_id)
1733 {
1734         /* Write Program Command Sequence. */
1735         if (IS_OEM_001(ha)) {
1736                 qla2x00_write_flash_byte(ha, 0xaaa, 0xaa);
1737                 qla2x00_write_flash_byte(ha, 0x555, 0x55);
1738                 qla2x00_write_flash_byte(ha, 0xaaa, 0xa0);
1739                 qla2x00_write_flash_byte(ha, addr, data);
1740         } else {
1741                 if (man_id == 0xda && flash_id == 0xc1) {
1742                         qla2x00_write_flash_byte(ha, addr, data);
1743                         if (addr & 0x7e)
1744                                 return 0;
1745                 } else {
1746                         qla2x00_write_flash_byte(ha, 0x5555, 0xaa);
1747                         qla2x00_write_flash_byte(ha, 0x2aaa, 0x55);
1748                         qla2x00_write_flash_byte(ha, 0x5555, 0xa0);
1749                         qla2x00_write_flash_byte(ha, addr, data);
1750                 }
1751         }
1752
1753         udelay(150);
1754
1755         /* Wait for write to complete. */
1756         return qla2x00_poll_flash(ha, addr, data, man_id, flash_id);
1757 }
1758
1759 /**
1760  * qla2x00_erase_flash() - Erase the flash.
1761  * @ha: HA context
1762  * @man_id: Flash manufacturer ID
1763  * @flash_id: Flash ID
1764  *
1765  * Returns 0 on success, else non-zero.
1766  */
1767 static int
1768 qla2x00_erase_flash(struct qla_hw_data *ha, uint8_t man_id, uint8_t flash_id)
1769 {
1770         /* Individual Sector Erase Command Sequence */
1771         if (IS_OEM_001(ha)) {
1772                 qla2x00_write_flash_byte(ha, 0xaaa, 0xaa);
1773                 qla2x00_write_flash_byte(ha, 0x555, 0x55);
1774                 qla2x00_write_flash_byte(ha, 0xaaa, 0x80);
1775                 qla2x00_write_flash_byte(ha, 0xaaa, 0xaa);
1776                 qla2x00_write_flash_byte(ha, 0x555, 0x55);
1777                 qla2x00_write_flash_byte(ha, 0xaaa, 0x10);
1778         } else {
1779                 qla2x00_write_flash_byte(ha, 0x5555, 0xaa);
1780                 qla2x00_write_flash_byte(ha, 0x2aaa, 0x55);
1781                 qla2x00_write_flash_byte(ha, 0x5555, 0x80);
1782                 qla2x00_write_flash_byte(ha, 0x5555, 0xaa);
1783                 qla2x00_write_flash_byte(ha, 0x2aaa, 0x55);
1784                 qla2x00_write_flash_byte(ha, 0x5555, 0x10);
1785         }
1786
1787         udelay(150);
1788
1789         /* Wait for erase to complete. */
1790         return qla2x00_poll_flash(ha, 0x00, 0x80, man_id, flash_id);
1791 }
1792
1793 /**
1794  * qla2x00_erase_flash_sector() - Erase a flash sector.
1795  * @ha: HA context
1796  * @addr: Flash sector to erase
1797  * @sec_mask: Sector address mask
1798  * @man_id: Flash manufacturer ID
1799  * @flash_id: Flash ID
1800  *
1801  * Returns 0 on success, else non-zero.
1802  */
1803 static int
1804 qla2x00_erase_flash_sector(struct qla_hw_data *ha, uint32_t addr,
1805     uint32_t sec_mask, uint8_t man_id, uint8_t flash_id)
1806 {
1807         /* Individual Sector Erase Command Sequence */
1808         qla2x00_write_flash_byte(ha, 0x5555, 0xaa);
1809         qla2x00_write_flash_byte(ha, 0x2aaa, 0x55);
1810         qla2x00_write_flash_byte(ha, 0x5555, 0x80);
1811         qla2x00_write_flash_byte(ha, 0x5555, 0xaa);
1812         qla2x00_write_flash_byte(ha, 0x2aaa, 0x55);
1813         if (man_id == 0x1f && flash_id == 0x13)
1814                 qla2x00_write_flash_byte(ha, addr & sec_mask, 0x10);
1815         else
1816                 qla2x00_write_flash_byte(ha, addr & sec_mask, 0x30);
1817
1818         udelay(150);
1819
1820         /* Wait for erase to complete. */
1821         return qla2x00_poll_flash(ha, addr, 0x80, man_id, flash_id);
1822 }
1823
1824 /**
1825  * qla2x00_get_flash_manufacturer() - Read manufacturer ID from flash chip.
1826  * @man_id: Flash manufacturer ID
1827  * @flash_id: Flash ID
1828  */
1829 static void
1830 qla2x00_get_flash_manufacturer(struct qla_hw_data *ha, uint8_t *man_id,
1831     uint8_t *flash_id)
1832 {
1833         qla2x00_write_flash_byte(ha, 0x5555, 0xaa);
1834         qla2x00_write_flash_byte(ha, 0x2aaa, 0x55);
1835         qla2x00_write_flash_byte(ha, 0x5555, 0x90);
1836         *man_id = qla2x00_read_flash_byte(ha, 0x0000);
1837         *flash_id = qla2x00_read_flash_byte(ha, 0x0001);
1838         qla2x00_write_flash_byte(ha, 0x5555, 0xaa);
1839         qla2x00_write_flash_byte(ha, 0x2aaa, 0x55);
1840         qla2x00_write_flash_byte(ha, 0x5555, 0xf0);
1841 }
1842
1843 static void
1844 qla2x00_read_flash_data(struct qla_hw_data *ha, uint8_t *tmp_buf,
1845         uint32_t saddr, uint32_t length)
1846 {
1847         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1848         uint32_t midpoint, ilength;
1849         uint8_t data;
1850
1851         midpoint = length / 2;
1852
1853         WRT_REG_WORD(&reg->nvram, 0);
1854         RD_REG_WORD(&reg->nvram);
1855         for (ilength = 0; ilength < length; saddr++, ilength++, tmp_buf++) {
1856                 if (ilength == midpoint) {
1857                         WRT_REG_WORD(&reg->nvram, NVR_SELECT);
1858                         RD_REG_WORD(&reg->nvram);
1859                 }
1860                 data = qla2x00_read_flash_byte(ha, saddr);
1861                 if (saddr % 100)
1862                         udelay(10);
1863                 *tmp_buf = data;
1864                 cond_resched();
1865         }
1866 }
1867
1868 static inline void
1869 qla2x00_suspend_hba(struct scsi_qla_host *vha)
1870 {
1871         int cnt;
1872         unsigned long flags;
1873         struct qla_hw_data *ha = vha->hw;
1874         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1875
1876         /* Suspend HBA. */
1877         scsi_block_requests(vha->host);
1878         ha->isp_ops->disable_intrs(ha);
1879         set_bit(MBX_UPDATE_FLASH_ACTIVE, &ha->mbx_cmd_flags);
1880
1881         /* Pause RISC. */
1882         spin_lock_irqsave(&ha->hardware_lock, flags);
1883         WRT_REG_WORD(&reg->hccr, HCCR_PAUSE_RISC);
1884         RD_REG_WORD(&reg->hccr);
1885         if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
1886                 for (cnt = 0; cnt < 30000; cnt++) {
1887                         if ((RD_REG_WORD(&reg->hccr) & HCCR_RISC_PAUSE) != 0)
1888                                 break;
1889                         udelay(100);
1890                 }
1891         } else {
1892                 udelay(10);
1893         }
1894         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1895 }
1896
1897 static inline void
1898 qla2x00_resume_hba(struct scsi_qla_host *vha)
1899 {
1900         struct qla_hw_data *ha = vha->hw;
1901
1902         /* Resume HBA. */
1903         clear_bit(MBX_UPDATE_FLASH_ACTIVE, &ha->mbx_cmd_flags);
1904         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1905         qla2xxx_wake_dpc(vha);
1906         qla2x00_wait_for_hba_online(vha);
1907         scsi_unblock_requests(vha->host);
1908 }
1909
1910 uint8_t *
1911 qla2x00_read_optrom_data(struct scsi_qla_host *vha, uint8_t *buf,
1912     uint32_t offset, uint32_t length)
1913 {
1914         uint32_t addr, midpoint;
1915         uint8_t *data;
1916         struct qla_hw_data *ha = vha->hw;
1917         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1918
1919         /* Suspend HBA. */
1920         qla2x00_suspend_hba(vha);
1921
1922         /* Go with read. */
1923         midpoint = ha->optrom_size / 2;
1924
1925         qla2x00_flash_enable(ha);
1926         WRT_REG_WORD(&reg->nvram, 0);
1927         RD_REG_WORD(&reg->nvram);               /* PCI Posting. */
1928         for (addr = offset, data = buf; addr < length; addr++, data++) {
1929                 if (addr == midpoint) {
1930                         WRT_REG_WORD(&reg->nvram, NVR_SELECT);
1931                         RD_REG_WORD(&reg->nvram);       /* PCI Posting. */
1932                 }
1933
1934                 *data = qla2x00_read_flash_byte(ha, addr);
1935         }
1936         qla2x00_flash_disable(ha);
1937
1938         /* Resume HBA. */
1939         qla2x00_resume_hba(vha);
1940
1941         return buf;
1942 }
1943
1944 int
1945 qla2x00_write_optrom_data(struct scsi_qla_host *vha, uint8_t *buf,
1946     uint32_t offset, uint32_t length)
1947 {
1948
1949         int rval;
1950         uint8_t man_id, flash_id, sec_number, data;
1951         uint16_t wd;
1952         uint32_t addr, liter, sec_mask, rest_addr;
1953         struct qla_hw_data *ha = vha->hw;
1954         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1955
1956         /* Suspend HBA. */
1957         qla2x00_suspend_hba(vha);
1958
1959         rval = QLA_SUCCESS;
1960         sec_number = 0;
1961
1962         /* Reset ISP chip. */
1963         WRT_REG_WORD(&reg->ctrl_status, CSR_ISP_SOFT_RESET);
1964         pci_read_config_word(ha->pdev, PCI_COMMAND, &wd);
1965
1966         /* Go with write. */
1967         qla2x00_flash_enable(ha);
1968         do {    /* Loop once to provide quick error exit */
1969                 /* Structure of flash memory based on manufacturer */
1970                 if (IS_OEM_001(ha)) {
1971                         /* OEM variant with special flash part. */
1972                         man_id = flash_id = 0;
1973                         rest_addr = 0xffff;
1974                         sec_mask   = 0x10000;
1975                         goto update_flash;
1976                 }
1977                 qla2x00_get_flash_manufacturer(ha, &man_id, &flash_id);
1978                 switch (man_id) {
1979                 case 0x20: /* ST flash. */
1980                         if (flash_id == 0xd2 || flash_id == 0xe3) {
1981                                 /*
1982                                  * ST m29w008at part - 64kb sector size with
1983                                  * 32kb,8kb,8kb,16kb sectors at memory address
1984                                  * 0xf0000.
1985                                  */
1986                                 rest_addr = 0xffff;
1987                                 sec_mask = 0x10000;
1988                                 break;
1989                         }
1990                         /*
1991                          * ST m29w010b part - 16kb sector size
1992                          * Default to 16kb sectors
1993                          */
1994                         rest_addr = 0x3fff;
1995                         sec_mask = 0x1c000;
1996                         break;
1997                 case 0x40: /* Mostel flash. */
1998                         /* Mostel v29c51001 part - 512 byte sector size. */
1999                         rest_addr = 0x1ff;
2000                         sec_mask = 0x1fe00;
2001                         break;
2002                 case 0xbf: /* SST flash. */
2003                         /* SST39sf10 part - 4kb sector size. */
2004                         rest_addr = 0xfff;
2005                         sec_mask = 0x1f000;
2006                         break;
2007                 case 0xda: /* Winbond flash. */
2008                         /* Winbond W29EE011 part - 256 byte sector size. */
2009                         rest_addr = 0x7f;
2010                         sec_mask = 0x1ff80;
2011                         break;
2012                 case 0xc2: /* Macronix flash. */
2013                         /* 64k sector size. */
2014                         if (flash_id == 0x38 || flash_id == 0x4f) {
2015                                 rest_addr = 0xffff;
2016                                 sec_mask = 0x10000;
2017                                 break;
2018                         }
2019                         /* Fall through... */
2020
2021                 case 0x1f: /* Atmel flash. */
2022                         /* 512k sector size. */
2023                         if (flash_id == 0x13) {
2024                                 rest_addr = 0x7fffffff;
2025                                 sec_mask =   0x80000000;
2026                                 break;
2027                         }
2028                         /* Fall through... */
2029
2030                 case 0x01: /* AMD flash. */
2031                         if (flash_id == 0x38 || flash_id == 0x40 ||
2032                             flash_id == 0x4f) {
2033                                 /* Am29LV081 part - 64kb sector size. */
2034                                 /* Am29LV002BT part - 64kb sector size. */
2035                                 rest_addr = 0xffff;
2036                                 sec_mask = 0x10000;
2037                                 break;
2038                         } else if (flash_id == 0x3e) {
2039                                 /*
2040                                  * Am29LV008b part - 64kb sector size with
2041                                  * 32kb,8kb,8kb,16kb sector at memory address
2042                                  * h0xf0000.
2043                                  */
2044                                 rest_addr = 0xffff;
2045                                 sec_mask = 0x10000;
2046                                 break;
2047                         } else if (flash_id == 0x20 || flash_id == 0x6e) {
2048                                 /*
2049                                  * Am29LV010 part or AM29f010 - 16kb sector
2050                                  * size.
2051                                  */
2052                                 rest_addr = 0x3fff;
2053                                 sec_mask = 0x1c000;
2054                                 break;
2055                         } else if (flash_id == 0x6d) {
2056                                 /* Am29LV001 part - 8kb sector size. */
2057                                 rest_addr = 0x1fff;
2058                                 sec_mask = 0x1e000;
2059                                 break;
2060                         }
2061                 default:
2062                         /* Default to 16 kb sector size. */
2063                         rest_addr = 0x3fff;
2064                         sec_mask = 0x1c000;
2065                         break;
2066                 }
2067
2068 update_flash:
2069                 if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
2070                         if (qla2x00_erase_flash(ha, man_id, flash_id)) {
2071                                 rval = QLA_FUNCTION_FAILED;
2072                                 break;
2073                         }
2074                 }
2075
2076                 for (addr = offset, liter = 0; liter < length; liter++,
2077                     addr++) {
2078                         data = buf[liter];
2079                         /* Are we at the beginning of a sector? */
2080                         if ((addr & rest_addr) == 0) {
2081                                 if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
2082                                         if (addr >= 0x10000UL) {
2083                                                 if (((addr >> 12) & 0xf0) &&
2084                                                     ((man_id == 0x01 &&
2085                                                         flash_id == 0x3e) ||
2086                                                      (man_id == 0x20 &&
2087                                                          flash_id == 0xd2))) {
2088                                                         sec_number++;
2089                                                         if (sec_number == 1) {
2090                                                                 rest_addr =
2091                                                                     0x7fff;
2092                                                                 sec_mask =
2093                                                                     0x18000;
2094                                                         } else if (
2095                                                             sec_number == 2 ||
2096                                                             sec_number == 3) {
2097                                                                 rest_addr =
2098                                                                     0x1fff;
2099                                                                 sec_mask =
2100                                                                     0x1e000;
2101                                                         } else if (
2102                                                             sec_number == 4) {
2103                                                                 rest_addr =
2104                                                                     0x3fff;
2105                                                                 sec_mask =
2106                                                                     0x1c000;
2107                                                         }
2108                                                 }
2109                                         }
2110                                 } else if (addr == ha->optrom_size / 2) {
2111                                         WRT_REG_WORD(&reg->nvram, NVR_SELECT);
2112                                         RD_REG_WORD(&reg->nvram);
2113                                 }
2114
2115                                 if (flash_id == 0xda && man_id == 0xc1) {
2116                                         qla2x00_write_flash_byte(ha, 0x5555,
2117                                             0xaa);
2118                                         qla2x00_write_flash_byte(ha, 0x2aaa,
2119                                             0x55);
2120                                         qla2x00_write_flash_byte(ha, 0x5555,
2121                                             0xa0);
2122                                 } else if (!IS_QLA2322(ha) && !IS_QLA6322(ha)) {
2123                                         /* Then erase it */
2124                                         if (qla2x00_erase_flash_sector(ha,
2125                                             addr, sec_mask, man_id,
2126                                             flash_id)) {
2127                                                 rval = QLA_FUNCTION_FAILED;
2128                                                 break;
2129                                         }
2130                                         if (man_id == 0x01 && flash_id == 0x6d)
2131                                                 sec_number++;
2132                                 }
2133                         }
2134
2135                         if (man_id == 0x01 && flash_id == 0x6d) {
2136                                 if (sec_number == 1 &&
2137                                     addr == (rest_addr - 1)) {
2138                                         rest_addr = 0x0fff;
2139                                         sec_mask   = 0x1f000;
2140                                 } else if (sec_number == 3 && (addr & 0x7ffe)) {
2141                                         rest_addr = 0x3fff;
2142                                         sec_mask   = 0x1c000;
2143                                 }
2144                         }
2145
2146                         if (qla2x00_program_flash_address(ha, addr, data,
2147                             man_id, flash_id)) {
2148                                 rval = QLA_FUNCTION_FAILED;
2149                                 break;
2150                         }
2151                         cond_resched();
2152                 }
2153         } while (0);
2154         qla2x00_flash_disable(ha);
2155
2156         /* Resume HBA. */
2157         qla2x00_resume_hba(vha);
2158
2159         return rval;
2160 }
2161
2162 uint8_t *
2163 qla24xx_read_optrom_data(struct scsi_qla_host *vha, uint8_t *buf,
2164     uint32_t offset, uint32_t length)
2165 {
2166         struct qla_hw_data *ha = vha->hw;
2167
2168         /* Suspend HBA. */
2169         scsi_block_requests(vha->host);
2170         set_bit(MBX_UPDATE_FLASH_ACTIVE, &ha->mbx_cmd_flags);
2171
2172         /* Go with read. */
2173         qla24xx_read_flash_data(vha, (uint32_t *)buf, offset >> 2, length >> 2);
2174
2175         /* Resume HBA. */
2176         clear_bit(MBX_UPDATE_FLASH_ACTIVE, &ha->mbx_cmd_flags);
2177         scsi_unblock_requests(vha->host);
2178
2179         return buf;
2180 }
2181
2182 int
2183 qla24xx_write_optrom_data(struct scsi_qla_host *vha, uint8_t *buf,
2184     uint32_t offset, uint32_t length)
2185 {
2186         int rval;
2187         struct qla_hw_data *ha = vha->hw;
2188
2189         /* Suspend HBA. */
2190         scsi_block_requests(vha->host);
2191         set_bit(MBX_UPDATE_FLASH_ACTIVE, &ha->mbx_cmd_flags);
2192
2193         /* Go with write. */
2194         rval = qla24xx_write_flash_data(vha, (uint32_t *)buf, offset >> 2,
2195             length >> 2);
2196
2197         /* Resume HBA -- RISC reset needed. */
2198         clear_bit(MBX_UPDATE_FLASH_ACTIVE, &ha->mbx_cmd_flags);
2199         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2200         qla2xxx_wake_dpc(vha);
2201         qla2x00_wait_for_hba_online(vha);
2202         scsi_unblock_requests(vha->host);
2203
2204         return rval;
2205 }
2206
2207 uint8_t *
2208 qla25xx_read_optrom_data(struct scsi_qla_host *vha, uint8_t *buf,
2209     uint32_t offset, uint32_t length)
2210 {
2211         int rval;
2212         dma_addr_t optrom_dma;
2213         void *optrom;
2214         uint8_t *pbuf;
2215         uint32_t faddr, left, burst;
2216         struct qla_hw_data *ha = vha->hw;
2217
2218         if (offset & 0xfff)
2219                 goto slow_read;
2220         if (length < OPTROM_BURST_SIZE)
2221                 goto slow_read;
2222
2223         optrom = dma_alloc_coherent(&ha->pdev->dev, OPTROM_BURST_SIZE,
2224             &optrom_dma, GFP_KERNEL);
2225         if (!optrom) {
2226                 qla_printk(KERN_DEBUG, ha,
2227                     "Unable to allocate memory for optrom burst read "
2228                     "(%x KB).\n", OPTROM_BURST_SIZE / 1024);
2229
2230                 goto slow_read;
2231         }
2232
2233         pbuf = buf;
2234         faddr = offset >> 2;
2235         left = length >> 2;
2236         burst = OPTROM_BURST_DWORDS;
2237         while (left != 0) {
2238                 if (burst > left)
2239                         burst = left;
2240
2241                 rval = qla2x00_dump_ram(vha, optrom_dma,
2242                     flash_data_to_access_addr(faddr), burst);
2243                 if (rval) {
2244                         qla_printk(KERN_WARNING, ha,
2245                             "Unable to burst-read optrom segment "
2246                             "(%x/%x/%llx).\n", rval,
2247                             flash_data_to_access_addr(faddr),
2248                             (unsigned long long)optrom_dma);
2249                         qla_printk(KERN_WARNING, ha,
2250                             "Reverting to slow-read.\n");
2251
2252                         dma_free_coherent(&ha->pdev->dev, OPTROM_BURST_SIZE,
2253                             optrom, optrom_dma);
2254                         goto slow_read;
2255                 }
2256
2257                 memcpy(pbuf, optrom, burst * 4);
2258
2259                 left -= burst;
2260                 faddr += burst;
2261                 pbuf += burst * 4;
2262         }
2263
2264         dma_free_coherent(&ha->pdev->dev, OPTROM_BURST_SIZE, optrom,
2265             optrom_dma);
2266
2267         return buf;
2268
2269 slow_read:
2270     return qla24xx_read_optrom_data(vha, buf, offset, length);
2271 }
2272
2273 /**
2274  * qla2x00_get_fcode_version() - Determine an FCODE image's version.
2275  * @ha: HA context
2276  * @pcids: Pointer to the FCODE PCI data structure
2277  *
2278  * The process of retrieving the FCODE version information is at best
2279  * described as interesting.
2280  *
2281  * Within the first 100h bytes of the image an ASCII string is present
2282  * which contains several pieces of information including the FCODE
2283  * version.  Unfortunately it seems the only reliable way to retrieve
2284  * the version is by scanning for another sentinel within the string,
2285  * the FCODE build date:
2286  *
2287  *      ... 2.00.02 10/17/02 ...
2288  *
2289  * Returns QLA_SUCCESS on successful retrieval of version.
2290  */
2291 static void
2292 qla2x00_get_fcode_version(struct qla_hw_data *ha, uint32_t pcids)
2293 {
2294         int ret = QLA_FUNCTION_FAILED;
2295         uint32_t istart, iend, iter, vend;
2296         uint8_t do_next, rbyte, *vbyte;
2297
2298         memset(ha->fcode_revision, 0, sizeof(ha->fcode_revision));
2299
2300         /* Skip the PCI data structure. */
2301         istart = pcids +
2302             ((qla2x00_read_flash_byte(ha, pcids + 0x0B) << 8) |
2303                 qla2x00_read_flash_byte(ha, pcids + 0x0A));
2304         iend = istart + 0x100;
2305         do {
2306                 /* Scan for the sentinel date string...eeewww. */
2307                 do_next = 0;
2308                 iter = istart;
2309                 while ((iter < iend) && !do_next) {
2310                         iter++;
2311                         if (qla2x00_read_flash_byte(ha, iter) == '/') {
2312                                 if (qla2x00_read_flash_byte(ha, iter + 2) ==
2313                                     '/')
2314                                         do_next++;
2315                                 else if (qla2x00_read_flash_byte(ha,
2316                                     iter + 3) == '/')
2317                                         do_next++;
2318                         }
2319                 }
2320                 if (!do_next)
2321                         break;
2322
2323                 /* Backtrack to previous ' ' (space). */
2324                 do_next = 0;
2325                 while ((iter > istart) && !do_next) {
2326                         iter--;
2327                         if (qla2x00_read_flash_byte(ha, iter) == ' ')
2328                                 do_next++;
2329                 }
2330                 if (!do_next)
2331                         break;
2332
2333                 /*
2334                  * Mark end of version tag, and find previous ' ' (space) or
2335                  * string length (recent FCODE images -- major hack ahead!!!).
2336                  */
2337                 vend = iter - 1;
2338                 do_next = 0;
2339                 while ((iter > istart) && !do_next) {
2340                         iter--;
2341                         rbyte = qla2x00_read_flash_byte(ha, iter);
2342                         if (rbyte == ' ' || rbyte == 0xd || rbyte == 0x10)
2343                                 do_next++;
2344                 }
2345                 if (!do_next)
2346                         break;
2347
2348                 /* Mark beginning of version tag, and copy data. */
2349                 iter++;
2350                 if ((vend - iter) &&
2351                     ((vend - iter) < sizeof(ha->fcode_revision))) {
2352                         vbyte = ha->fcode_revision;
2353                         while (iter <= vend) {
2354                                 *vbyte++ = qla2x00_read_flash_byte(ha, iter);
2355                                 iter++;
2356                         }
2357                         ret = QLA_SUCCESS;
2358                 }
2359         } while (0);
2360
2361         if (ret != QLA_SUCCESS)
2362                 memset(ha->fcode_revision, 0, sizeof(ha->fcode_revision));
2363 }
2364
2365 int
2366 qla2x00_get_flash_version(scsi_qla_host_t *vha, void *mbuf)
2367 {
2368         int ret = QLA_SUCCESS;
2369         uint8_t code_type, last_image;
2370         uint32_t pcihdr, pcids;
2371         uint8_t *dbyte;
2372         uint16_t *dcode;
2373         struct qla_hw_data *ha = vha->hw;
2374
2375         if (!ha->pio_address || !mbuf)
2376                 return QLA_FUNCTION_FAILED;
2377
2378         memset(ha->bios_revision, 0, sizeof(ha->bios_revision));
2379         memset(ha->efi_revision, 0, sizeof(ha->efi_revision));
2380         memset(ha->fcode_revision, 0, sizeof(ha->fcode_revision));
2381         memset(ha->fw_revision, 0, sizeof(ha->fw_revision));
2382
2383         qla2x00_flash_enable(ha);
2384
2385         /* Begin with first PCI expansion ROM header. */
2386         pcihdr = 0;
2387         last_image = 1;
2388         do {
2389                 /* Verify PCI expansion ROM header. */
2390                 if (qla2x00_read_flash_byte(ha, pcihdr) != 0x55 ||
2391                     qla2x00_read_flash_byte(ha, pcihdr + 0x01) != 0xaa) {
2392                         /* No signature */
2393                         DEBUG2(qla_printk(KERN_DEBUG, ha, "No matching ROM "
2394                             "signature.\n"));
2395                         ret = QLA_FUNCTION_FAILED;
2396                         break;
2397                 }
2398
2399                 /* Locate PCI data structure. */
2400                 pcids = pcihdr +
2401                     ((qla2x00_read_flash_byte(ha, pcihdr + 0x19) << 8) |
2402                         qla2x00_read_flash_byte(ha, pcihdr + 0x18));
2403
2404                 /* Validate signature of PCI data structure. */
2405                 if (qla2x00_read_flash_byte(ha, pcids) != 'P' ||
2406                     qla2x00_read_flash_byte(ha, pcids + 0x1) != 'C' ||
2407                     qla2x00_read_flash_byte(ha, pcids + 0x2) != 'I' ||
2408                     qla2x00_read_flash_byte(ha, pcids + 0x3) != 'R') {
2409                         /* Incorrect header. */
2410                         DEBUG2(qla_printk(KERN_INFO, ha, "PCI data struct not "
2411                             "found pcir_adr=%x.\n", pcids));
2412                         ret = QLA_FUNCTION_FAILED;
2413                         break;
2414                 }
2415
2416                 /* Read version */
2417                 code_type = qla2x00_read_flash_byte(ha, pcids + 0x14);
2418                 switch (code_type) {
2419                 case ROM_CODE_TYPE_BIOS:
2420                         /* Intel x86, PC-AT compatible. */
2421                         ha->bios_revision[0] =
2422                             qla2x00_read_flash_byte(ha, pcids + 0x12);
2423                         ha->bios_revision[1] =
2424                             qla2x00_read_flash_byte(ha, pcids + 0x13);
2425                         DEBUG3(qla_printk(KERN_DEBUG, ha, "read BIOS %d.%d.\n",
2426                             ha->bios_revision[1], ha->bios_revision[0]));
2427                         break;
2428                 case ROM_CODE_TYPE_FCODE:
2429                         /* Open Firmware standard for PCI (FCode). */
2430                         /* Eeeewww... */
2431                         qla2x00_get_fcode_version(ha, pcids);
2432                         break;
2433                 case ROM_CODE_TYPE_EFI:
2434                         /* Extensible Firmware Interface (EFI). */
2435                         ha->efi_revision[0] =
2436                             qla2x00_read_flash_byte(ha, pcids + 0x12);
2437                         ha->efi_revision[1] =
2438                             qla2x00_read_flash_byte(ha, pcids + 0x13);
2439                         DEBUG3(qla_printk(KERN_DEBUG, ha, "read EFI %d.%d.\n",
2440                             ha->efi_revision[1], ha->efi_revision[0]));
2441                         break;
2442                 default:
2443                         DEBUG2(qla_printk(KERN_INFO, ha, "Unrecognized code "
2444                             "type %x at pcids %x.\n", code_type, pcids));
2445                         break;
2446                 }
2447
2448                 last_image = qla2x00_read_flash_byte(ha, pcids + 0x15) & BIT_7;
2449
2450                 /* Locate next PCI expansion ROM. */
2451                 pcihdr += ((qla2x00_read_flash_byte(ha, pcids + 0x11) << 8) |
2452                     qla2x00_read_flash_byte(ha, pcids + 0x10)) * 512;
2453         } while (!last_image);
2454
2455         if (IS_QLA2322(ha)) {
2456                 /* Read firmware image information. */
2457                 memset(ha->fw_revision, 0, sizeof(ha->fw_revision));
2458                 dbyte = mbuf;
2459                 memset(dbyte, 0, 8);
2460                 dcode = (uint16_t *)dbyte;
2461
2462                 qla2x00_read_flash_data(ha, dbyte, ha->flt_region_fw * 4 + 10,
2463                     8);
2464                 DEBUG3(qla_printk(KERN_DEBUG, ha, "dumping fw ver from "
2465                     "flash:\n"));
2466                 DEBUG3(qla2x00_dump_buffer((uint8_t *)dbyte, 8));
2467
2468                 if ((dcode[0] == 0xffff && dcode[1] == 0xffff &&
2469                     dcode[2] == 0xffff && dcode[3] == 0xffff) ||
2470                     (dcode[0] == 0 && dcode[1] == 0 && dcode[2] == 0 &&
2471                     dcode[3] == 0)) {
2472                         DEBUG2(qla_printk(KERN_INFO, ha, "Unrecognized fw "
2473                             "revision at %x.\n", ha->flt_region_fw * 4));
2474                 } else {
2475                         /* values are in big endian */
2476                         ha->fw_revision[0] = dbyte[0] << 16 | dbyte[1];
2477                         ha->fw_revision[1] = dbyte[2] << 16 | dbyte[3];
2478                         ha->fw_revision[2] = dbyte[4] << 16 | dbyte[5];
2479                 }
2480         }
2481
2482         qla2x00_flash_disable(ha);
2483
2484         return ret;
2485 }
2486
2487 int
2488 qla24xx_get_flash_version(scsi_qla_host_t *vha, void *mbuf)
2489 {
2490         int ret = QLA_SUCCESS;
2491         uint32_t pcihdr, pcids;
2492         uint32_t *dcode;
2493         uint8_t *bcode;
2494         uint8_t code_type, last_image;
2495         int i;
2496         struct qla_hw_data *ha = vha->hw;
2497
2498         if (!mbuf)
2499                 return QLA_FUNCTION_FAILED;
2500
2501         memset(ha->bios_revision, 0, sizeof(ha->bios_revision));
2502         memset(ha->efi_revision, 0, sizeof(ha->efi_revision));
2503         memset(ha->fcode_revision, 0, sizeof(ha->fcode_revision));
2504         memset(ha->fw_revision, 0, sizeof(ha->fw_revision));
2505
2506         dcode = mbuf;
2507
2508         /* Begin with first PCI expansion ROM header. */
2509         pcihdr = ha->flt_region_boot;
2510         last_image = 1;
2511         do {
2512                 /* Verify PCI expansion ROM header. */
2513                 qla24xx_read_flash_data(vha, dcode, pcihdr >> 2, 0x20);
2514                 bcode = mbuf + (pcihdr % 4);
2515                 if (bcode[0x0] != 0x55 || bcode[0x1] != 0xaa) {
2516                         /* No signature */
2517                         DEBUG2(qla_printk(KERN_DEBUG, ha, "No matching ROM "
2518                             "signature.\n"));
2519                         ret = QLA_FUNCTION_FAILED;
2520                         break;
2521                 }
2522
2523                 /* Locate PCI data structure. */
2524                 pcids = pcihdr + ((bcode[0x19] << 8) | bcode[0x18]);
2525
2526                 qla24xx_read_flash_data(vha, dcode, pcids >> 2, 0x20);
2527                 bcode = mbuf + (pcihdr % 4);
2528
2529                 /* Validate signature of PCI data structure. */
2530                 if (bcode[0x0] != 'P' || bcode[0x1] != 'C' ||
2531                     bcode[0x2] != 'I' || bcode[0x3] != 'R') {
2532                         /* Incorrect header. */
2533                         DEBUG2(qla_printk(KERN_INFO, ha, "PCI data struct not "
2534                             "found pcir_adr=%x.\n", pcids));
2535                         ret = QLA_FUNCTION_FAILED;
2536                         break;
2537                 }
2538
2539                 /* Read version */
2540                 code_type = bcode[0x14];
2541                 switch (code_type) {
2542                 case ROM_CODE_TYPE_BIOS:
2543                         /* Intel x86, PC-AT compatible. */
2544                         ha->bios_revision[0] = bcode[0x12];
2545                         ha->bios_revision[1] = bcode[0x13];
2546                         DEBUG3(qla_printk(KERN_DEBUG, ha, "read BIOS %d.%d.\n",
2547                             ha->bios_revision[1], ha->bios_revision[0]));
2548                         break;
2549                 case ROM_CODE_TYPE_FCODE:
2550                         /* Open Firmware standard for PCI (FCode). */
2551                         ha->fcode_revision[0] = bcode[0x12];
2552                         ha->fcode_revision[1] = bcode[0x13];
2553                         DEBUG3(qla_printk(KERN_DEBUG, ha, "read FCODE %d.%d.\n",
2554                             ha->fcode_revision[1], ha->fcode_revision[0]));
2555                         break;
2556                 case ROM_CODE_TYPE_EFI:
2557                         /* Extensible Firmware Interface (EFI). */
2558                         ha->efi_revision[0] = bcode[0x12];
2559                         ha->efi_revision[1] = bcode[0x13];
2560                         DEBUG3(qla_printk(KERN_DEBUG, ha, "read EFI %d.%d.\n",
2561                             ha->efi_revision[1], ha->efi_revision[0]));
2562                         break;
2563                 default:
2564                         DEBUG2(qla_printk(KERN_INFO, ha, "Unrecognized code "
2565                             "type %x at pcids %x.\n", code_type, pcids));
2566                         break;
2567                 }
2568
2569                 last_image = bcode[0x15] & BIT_7;
2570
2571                 /* Locate next PCI expansion ROM. */
2572                 pcihdr += ((bcode[0x11] << 8) | bcode[0x10]) * 512;
2573         } while (!last_image);
2574
2575         /* Read firmware image information. */
2576         memset(ha->fw_revision, 0, sizeof(ha->fw_revision));
2577         dcode = mbuf;
2578
2579         qla24xx_read_flash_data(vha, dcode, ha->flt_region_fw + 4, 4);
2580         for (i = 0; i < 4; i++)
2581                 dcode[i] = be32_to_cpu(dcode[i]);
2582
2583         if ((dcode[0] == 0xffffffff && dcode[1] == 0xffffffff &&
2584             dcode[2] == 0xffffffff && dcode[3] == 0xffffffff) ||
2585             (dcode[0] == 0 && dcode[1] == 0 && dcode[2] == 0 &&
2586             dcode[3] == 0)) {
2587                 DEBUG2(qla_printk(KERN_INFO, ha, "Unrecognized fw "
2588                     "revision at %x.\n", ha->flt_region_fw * 4));
2589         } else {
2590                 ha->fw_revision[0] = dcode[0];
2591                 ha->fw_revision[1] = dcode[1];
2592                 ha->fw_revision[2] = dcode[2];
2593                 ha->fw_revision[3] = dcode[3];
2594         }
2595
2596         return ret;
2597 }
2598
2599 static int
2600 qla2xxx_is_vpd_valid(uint8_t *pos, uint8_t *end)
2601 {
2602         if (pos >= end || *pos != 0x82)
2603                 return 0;
2604
2605         pos += 3 + pos[1];
2606         if (pos >= end || *pos != 0x90)
2607                 return 0;
2608
2609         pos += 3 + pos[1];
2610         if (pos >= end || *pos != 0x78)
2611                 return 0;
2612
2613         return 1;
2614 }
2615
2616 int
2617 qla2xxx_get_vpd_field(scsi_qla_host_t *vha, char *key, char *str, size_t size)
2618 {
2619         struct qla_hw_data *ha = vha->hw;
2620         uint8_t *pos = ha->vpd;
2621         uint8_t *end = pos + ha->vpd_size;
2622         int len = 0;
2623
2624         if (!IS_FWI2_CAPABLE(ha) || !qla2xxx_is_vpd_valid(pos, end))
2625                 return 0;
2626
2627         while (pos < end && *pos != 0x78) {
2628                 len = (*pos == 0x82) ? pos[1] : pos[2];
2629
2630                 if (!strncmp(pos, key, strlen(key)))
2631                         break;
2632
2633                 if (*pos != 0x90 && *pos != 0x91)
2634                         pos += len;
2635
2636                 pos += 3;
2637         }
2638
2639         if (pos < end - len && *pos != 0x78)
2640                 return snprintf(str, size, "%.*s", len, pos + 3);
2641
2642         return 0;
2643 }
2644
2645 static int
2646 qla2xxx_hw_event_store(scsi_qla_host_t *vha, uint32_t *fdata)
2647 {
2648         uint32_t d[2], faddr;
2649         struct qla_hw_data *ha = vha->hw;
2650
2651         /* Locate first empty entry. */
2652         for (;;) {
2653                 if (ha->hw_event_ptr >=
2654                     ha->flt_region_hw_event + FA_HW_EVENT_SIZE) {
2655                         DEBUG2(qla_printk(KERN_WARNING, ha,
2656                             "HW event -- Log Full!\n"));
2657                         return QLA_MEMORY_ALLOC_FAILED;
2658                 }
2659
2660                 qla24xx_read_flash_data(vha, d, ha->hw_event_ptr, 2);
2661                 faddr = flash_data_to_access_addr(ha->hw_event_ptr);
2662                 ha->hw_event_ptr += FA_HW_EVENT_ENTRY_SIZE;
2663                 if (d[0] == __constant_cpu_to_le32(0xffffffff) &&
2664                     d[1] == __constant_cpu_to_le32(0xffffffff)) {
2665                         qla24xx_unprotect_flash(ha);
2666
2667                         qla24xx_write_flash_dword(ha, faddr++,
2668                             cpu_to_le32(jiffies));
2669                         qla24xx_write_flash_dword(ha, faddr++, 0);
2670                         qla24xx_write_flash_dword(ha, faddr++, *fdata++);
2671                         qla24xx_write_flash_dword(ha, faddr++, *fdata);
2672
2673                         qla24xx_protect_flash(ha);
2674                         break;
2675                 }
2676         }
2677         return QLA_SUCCESS;
2678 }
2679
2680 int
2681 qla2xxx_hw_event_log(scsi_qla_host_t *vha, uint16_t code, uint16_t d1,
2682     uint16_t d2, uint16_t d3)
2683 {
2684 #define QMARK(a, b, c, d) \
2685     cpu_to_le32(LSB(a) << 24 | LSB(b) << 16 | LSB(c) << 8 | LSB(d))
2686         struct qla_hw_data *ha = vha->hw;
2687         int rval;
2688         uint32_t marker[2], fdata[4];
2689
2690         if (ha->flt_region_hw_event == 0)
2691                 return QLA_FUNCTION_FAILED;
2692
2693         DEBUG2(qla_printk(KERN_WARNING, ha,
2694             "HW event -- code=%x, d1=%x, d2=%x, d3=%x.\n", code, d1, d2, d3));
2695
2696         /* If marker not already found, locate or write.  */
2697         if (!ha->flags.hw_event_marker_found) {
2698                 /* Create marker. */
2699                 marker[0] = QMARK('L', ha->fw_major_version,
2700                     ha->fw_minor_version, ha->fw_subminor_version);
2701                 marker[1] = QMARK(QLA_DRIVER_MAJOR_VER, QLA_DRIVER_MINOR_VER,
2702                     QLA_DRIVER_PATCH_VER, QLA_DRIVER_BETA_VER);
2703
2704                 /* Locate marker. */
2705                 ha->hw_event_ptr = ha->flt_region_hw_event;
2706                 for (;;) {
2707                         qla24xx_read_flash_data(vha, fdata, ha->hw_event_ptr,
2708                             4);
2709                         if (fdata[0] == __constant_cpu_to_le32(0xffffffff) &&
2710                             fdata[1] == __constant_cpu_to_le32(0xffffffff))
2711                                 break;
2712                         ha->hw_event_ptr += FA_HW_EVENT_ENTRY_SIZE;
2713                         if (ha->hw_event_ptr >=
2714                             ha->flt_region_hw_event + FA_HW_EVENT_SIZE) {
2715                                 DEBUG2(qla_printk(KERN_WARNING, ha,
2716                                     "HW event -- Log Full!\n"));
2717                                 return QLA_MEMORY_ALLOC_FAILED;
2718                         }
2719                         if (fdata[2] == marker[0] && fdata[3] == marker[1]) {
2720                                 ha->flags.hw_event_marker_found = 1;
2721                                 break;
2722                         }
2723                 }
2724                 /* No marker, write it. */
2725                 if (!ha->flags.hw_event_marker_found) {
2726                         rval = qla2xxx_hw_event_store(vha, marker);
2727                         if (rval != QLA_SUCCESS) {
2728                                 DEBUG2(qla_printk(KERN_WARNING, ha,
2729                                     "HW event -- Failed marker write=%x.!\n",
2730                                     rval));
2731                                 return rval;
2732                         }
2733                         ha->flags.hw_event_marker_found = 1;
2734                 }
2735         }
2736
2737         /* Store error.  */
2738         fdata[0] = cpu_to_le32(code << 16 | d1);
2739         fdata[1] = cpu_to_le32(d2 << 16 | d3);
2740         rval = qla2xxx_hw_event_store(vha, fdata);
2741         if (rval != QLA_SUCCESS) {
2742                 DEBUG2(qla_printk(KERN_WARNING, ha,
2743                     "HW event -- Failed error write=%x.!\n",
2744                     rval));
2745         }
2746
2747         return rval;
2748 }