linux/drivers/scsi/qla2xxx/qla_nx.c
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   1/*
   2 * QLogic Fibre Channel HBA Driver
   3 * Copyright (c)  2003-2014 QLogic Corporation
   4 *
   5 * See LICENSE.qla2xxx for copyright and licensing details.
   6 */
   7#include "qla_def.h"
   8#include <linux/delay.h>
   9#include <linux/pci.h>
  10#include <linux/ratelimit.h>
  11#include <linux/vmalloc.h>
  12#include <scsi/scsi_tcq.h>
  13
  14#define MASK(n)                 ((1ULL<<(n))-1)
  15#define MN_WIN(addr) (((addr & 0x1fc0000) >> 1) | \
  16        ((addr >> 25) & 0x3ff))
  17#define OCM_WIN(addr) (((addr & 0x1ff0000) >> 1) | \
  18        ((addr >> 25) & 0x3ff))
  19#define MS_WIN(addr) (addr & 0x0ffc0000)
  20#define QLA82XX_PCI_MN_2M   (0)
  21#define QLA82XX_PCI_MS_2M   (0x80000)
  22#define QLA82XX_PCI_OCM0_2M (0xc0000)
  23#define VALID_OCM_ADDR(addr) (((addr) & 0x3f800) != 0x3f800)
  24#define GET_MEM_OFFS_2M(addr) (addr & MASK(18))
  25#define BLOCK_PROTECT_BITS 0x0F
  26
  27/* CRB window related */
  28#define CRB_BLK(off)    ((off >> 20) & 0x3f)
  29#define CRB_SUBBLK(off) ((off >> 16) & 0xf)
  30#define CRB_WINDOW_2M   (0x130060)
  31#define QLA82XX_PCI_CAMQM_2M_END        (0x04800800UL)
  32#define CRB_HI(off)     ((qla82xx_crb_hub_agt[CRB_BLK(off)] << 20) | \
  33                        ((off) & 0xf0000))
  34#define QLA82XX_PCI_CAMQM_2M_BASE       (0x000ff800UL)
  35#define CRB_INDIRECT_2M (0x1e0000UL)
  36
  37#define MAX_CRB_XFORM 60
  38static unsigned long crb_addr_xform[MAX_CRB_XFORM];
  39static int qla82xx_crb_table_initialized;
  40
  41#define qla82xx_crb_addr_transform(name) \
  42        (crb_addr_xform[QLA82XX_HW_PX_MAP_CRB_##name] = \
  43        QLA82XX_HW_CRB_HUB_AGT_ADR_##name << 20)
  44
  45static void qla82xx_crb_addr_transform_setup(void)
  46{
  47        qla82xx_crb_addr_transform(XDMA);
  48        qla82xx_crb_addr_transform(TIMR);
  49        qla82xx_crb_addr_transform(SRE);
  50        qla82xx_crb_addr_transform(SQN3);
  51        qla82xx_crb_addr_transform(SQN2);
  52        qla82xx_crb_addr_transform(SQN1);
  53        qla82xx_crb_addr_transform(SQN0);
  54        qla82xx_crb_addr_transform(SQS3);
  55        qla82xx_crb_addr_transform(SQS2);
  56        qla82xx_crb_addr_transform(SQS1);
  57        qla82xx_crb_addr_transform(SQS0);
  58        qla82xx_crb_addr_transform(RPMX7);
  59        qla82xx_crb_addr_transform(RPMX6);
  60        qla82xx_crb_addr_transform(RPMX5);
  61        qla82xx_crb_addr_transform(RPMX4);
  62        qla82xx_crb_addr_transform(RPMX3);
  63        qla82xx_crb_addr_transform(RPMX2);
  64        qla82xx_crb_addr_transform(RPMX1);
  65        qla82xx_crb_addr_transform(RPMX0);
  66        qla82xx_crb_addr_transform(ROMUSB);
  67        qla82xx_crb_addr_transform(SN);
  68        qla82xx_crb_addr_transform(QMN);
  69        qla82xx_crb_addr_transform(QMS);
  70        qla82xx_crb_addr_transform(PGNI);
  71        qla82xx_crb_addr_transform(PGND);
  72        qla82xx_crb_addr_transform(PGN3);
  73        qla82xx_crb_addr_transform(PGN2);
  74        qla82xx_crb_addr_transform(PGN1);
  75        qla82xx_crb_addr_transform(PGN0);
  76        qla82xx_crb_addr_transform(PGSI);
  77        qla82xx_crb_addr_transform(PGSD);
  78        qla82xx_crb_addr_transform(PGS3);
  79        qla82xx_crb_addr_transform(PGS2);
  80        qla82xx_crb_addr_transform(PGS1);
  81        qla82xx_crb_addr_transform(PGS0);
  82        qla82xx_crb_addr_transform(PS);
  83        qla82xx_crb_addr_transform(PH);
  84        qla82xx_crb_addr_transform(NIU);
  85        qla82xx_crb_addr_transform(I2Q);
  86        qla82xx_crb_addr_transform(EG);
  87        qla82xx_crb_addr_transform(MN);
  88        qla82xx_crb_addr_transform(MS);
  89        qla82xx_crb_addr_transform(CAS2);
  90        qla82xx_crb_addr_transform(CAS1);
  91        qla82xx_crb_addr_transform(CAS0);
  92        qla82xx_crb_addr_transform(CAM);
  93        qla82xx_crb_addr_transform(C2C1);
  94        qla82xx_crb_addr_transform(C2C0);
  95        qla82xx_crb_addr_transform(SMB);
  96        qla82xx_crb_addr_transform(OCM0);
  97        /*
  98         * Used only in P3 just define it for P2 also.
  99         */
 100        qla82xx_crb_addr_transform(I2C0);
 101
 102        qla82xx_crb_table_initialized = 1;
 103}
 104
 105static struct crb_128M_2M_block_map crb_128M_2M_map[64] = {
 106        {{{0, 0,         0,         0} } },
 107        {{{1, 0x0100000, 0x0102000, 0x120000},
 108        {1, 0x0110000, 0x0120000, 0x130000},
 109        {1, 0x0120000, 0x0122000, 0x124000},
 110        {1, 0x0130000, 0x0132000, 0x126000},
 111        {1, 0x0140000, 0x0142000, 0x128000},
 112        {1, 0x0150000, 0x0152000, 0x12a000},
 113        {1, 0x0160000, 0x0170000, 0x110000},
 114        {1, 0x0170000, 0x0172000, 0x12e000},
 115        {0, 0x0000000, 0x0000000, 0x000000},
 116        {0, 0x0000000, 0x0000000, 0x000000},
 117        {0, 0x0000000, 0x0000000, 0x000000},
 118        {0, 0x0000000, 0x0000000, 0x000000},
 119        {0, 0x0000000, 0x0000000, 0x000000},
 120        {0, 0x0000000, 0x0000000, 0x000000},
 121        {1, 0x01e0000, 0x01e0800, 0x122000},
 122        {0, 0x0000000, 0x0000000, 0x000000} } } ,
 123        {{{1, 0x0200000, 0x0210000, 0x180000} } },
 124        {{{0, 0,         0,         0} } },
 125        {{{1, 0x0400000, 0x0401000, 0x169000} } },
 126        {{{1, 0x0500000, 0x0510000, 0x140000} } },
 127        {{{1, 0x0600000, 0x0610000, 0x1c0000} } },
 128        {{{1, 0x0700000, 0x0704000, 0x1b8000} } },
 129        {{{1, 0x0800000, 0x0802000, 0x170000},
 130        {0, 0x0000000, 0x0000000, 0x000000},
 131        {0, 0x0000000, 0x0000000, 0x000000},
 132        {0, 0x0000000, 0x0000000, 0x000000},
 133        {0, 0x0000000, 0x0000000, 0x000000},
 134        {0, 0x0000000, 0x0000000, 0x000000},
 135        {0, 0x0000000, 0x0000000, 0x000000},
 136        {0, 0x0000000, 0x0000000, 0x000000},
 137        {0, 0x0000000, 0x0000000, 0x000000},
 138        {0, 0x0000000, 0x0000000, 0x000000},
 139        {0, 0x0000000, 0x0000000, 0x000000},
 140        {0, 0x0000000, 0x0000000, 0x000000},
 141        {0, 0x0000000, 0x0000000, 0x000000},
 142        {0, 0x0000000, 0x0000000, 0x000000},
 143        {0, 0x0000000, 0x0000000, 0x000000},
 144        {1, 0x08f0000, 0x08f2000, 0x172000} } },
 145        {{{1, 0x0900000, 0x0902000, 0x174000},
 146        {0, 0x0000000, 0x0000000, 0x000000},
 147        {0, 0x0000000, 0x0000000, 0x000000},
 148        {0, 0x0000000, 0x0000000, 0x000000},
 149        {0, 0x0000000, 0x0000000, 0x000000},
 150        {0, 0x0000000, 0x0000000, 0x000000},
 151        {0, 0x0000000, 0x0000000, 0x000000},
 152        {0, 0x0000000, 0x0000000, 0x000000},
 153        {0, 0x0000000, 0x0000000, 0x000000},
 154        {0, 0x0000000, 0x0000000, 0x000000},
 155        {0, 0x0000000, 0x0000000, 0x000000},
 156        {0, 0x0000000, 0x0000000, 0x000000},
 157        {0, 0x0000000, 0x0000000, 0x000000},
 158        {0, 0x0000000, 0x0000000, 0x000000},
 159        {0, 0x0000000, 0x0000000, 0x000000},
 160        {1, 0x09f0000, 0x09f2000, 0x176000} } },
 161        {{{0, 0x0a00000, 0x0a02000, 0x178000},
 162        {0, 0x0000000, 0x0000000, 0x000000},
 163        {0, 0x0000000, 0x0000000, 0x000000},
 164        {0, 0x0000000, 0x0000000, 0x000000},
 165        {0, 0x0000000, 0x0000000, 0x000000},
 166        {0, 0x0000000, 0x0000000, 0x000000},
 167        {0, 0x0000000, 0x0000000, 0x000000},
 168        {0, 0x0000000, 0x0000000, 0x000000},
 169        {0, 0x0000000, 0x0000000, 0x000000},
 170        {0, 0x0000000, 0x0000000, 0x000000},
 171        {0, 0x0000000, 0x0000000, 0x000000},
 172        {0, 0x0000000, 0x0000000, 0x000000},
 173        {0, 0x0000000, 0x0000000, 0x000000},
 174        {0, 0x0000000, 0x0000000, 0x000000},
 175        {0, 0x0000000, 0x0000000, 0x000000},
 176        {1, 0x0af0000, 0x0af2000, 0x17a000} } },
 177        {{{0, 0x0b00000, 0x0b02000, 0x17c000},
 178        {0, 0x0000000, 0x0000000, 0x000000},
 179        {0, 0x0000000, 0x0000000, 0x000000},
 180        {0, 0x0000000, 0x0000000, 0x000000},
 181        {0, 0x0000000, 0x0000000, 0x000000},
 182        {0, 0x0000000, 0x0000000, 0x000000},
 183        {0, 0x0000000, 0x0000000, 0x000000},
 184        {0, 0x0000000, 0x0000000, 0x000000},
 185        {0, 0x0000000, 0x0000000, 0x000000},
 186        {0, 0x0000000, 0x0000000, 0x000000},
 187        {0, 0x0000000, 0x0000000, 0x000000},
 188        {0, 0x0000000, 0x0000000, 0x000000},
 189        {0, 0x0000000, 0x0000000, 0x000000},
 190        {0, 0x0000000, 0x0000000, 0x000000},
 191        {0, 0x0000000, 0x0000000, 0x000000},
 192        {1, 0x0bf0000, 0x0bf2000, 0x17e000} } },
 193        {{{1, 0x0c00000, 0x0c04000, 0x1d4000} } },
 194        {{{1, 0x0d00000, 0x0d04000, 0x1a4000} } },
 195        {{{1, 0x0e00000, 0x0e04000, 0x1a0000} } },
 196        {{{1, 0x0f00000, 0x0f01000, 0x164000} } },
 197        {{{0, 0x1000000, 0x1004000, 0x1a8000} } },
 198        {{{1, 0x1100000, 0x1101000, 0x160000} } },
 199        {{{1, 0x1200000, 0x1201000, 0x161000} } },
 200        {{{1, 0x1300000, 0x1301000, 0x162000} } },
 201        {{{1, 0x1400000, 0x1401000, 0x163000} } },
 202        {{{1, 0x1500000, 0x1501000, 0x165000} } },
 203        {{{1, 0x1600000, 0x1601000, 0x166000} } },
 204        {{{0, 0,         0,         0} } },
 205        {{{0, 0,         0,         0} } },
 206        {{{0, 0,         0,         0} } },
 207        {{{0, 0,         0,         0} } },
 208        {{{0, 0,         0,         0} } },
 209        {{{0, 0,         0,         0} } },
 210        {{{1, 0x1d00000, 0x1d10000, 0x190000} } },
 211        {{{1, 0x1e00000, 0x1e01000, 0x16a000} } },
 212        {{{1, 0x1f00000, 0x1f10000, 0x150000} } },
 213        {{{0} } },
 214        {{{1, 0x2100000, 0x2102000, 0x120000},
 215        {1, 0x2110000, 0x2120000, 0x130000},
 216        {1, 0x2120000, 0x2122000, 0x124000},
 217        {1, 0x2130000, 0x2132000, 0x126000},
 218        {1, 0x2140000, 0x2142000, 0x128000},
 219        {1, 0x2150000, 0x2152000, 0x12a000},
 220        {1, 0x2160000, 0x2170000, 0x110000},
 221        {1, 0x2170000, 0x2172000, 0x12e000},
 222        {0, 0x0000000, 0x0000000, 0x000000},
 223        {0, 0x0000000, 0x0000000, 0x000000},
 224        {0, 0x0000000, 0x0000000, 0x000000},
 225        {0, 0x0000000, 0x0000000, 0x000000},
 226        {0, 0x0000000, 0x0000000, 0x000000},
 227        {0, 0x0000000, 0x0000000, 0x000000},
 228        {0, 0x0000000, 0x0000000, 0x000000},
 229        {0, 0x0000000, 0x0000000, 0x000000} } },
 230        {{{1, 0x2200000, 0x2204000, 0x1b0000} } },
 231        {{{0} } },
 232        {{{0} } },
 233        {{{0} } },
 234        {{{0} } },
 235        {{{0} } },
 236        {{{1, 0x2800000, 0x2804000, 0x1a4000} } },
 237        {{{1, 0x2900000, 0x2901000, 0x16b000} } },
 238        {{{1, 0x2a00000, 0x2a00400, 0x1ac400} } },
 239        {{{1, 0x2b00000, 0x2b00400, 0x1ac800} } },
 240        {{{1, 0x2c00000, 0x2c00400, 0x1acc00} } },
 241        {{{1, 0x2d00000, 0x2d00400, 0x1ad000} } },
 242        {{{1, 0x2e00000, 0x2e00400, 0x1ad400} } },
 243        {{{1, 0x2f00000, 0x2f00400, 0x1ad800} } },
 244        {{{1, 0x3000000, 0x3000400, 0x1adc00} } },
 245        {{{0, 0x3100000, 0x3104000, 0x1a8000} } },
 246        {{{1, 0x3200000, 0x3204000, 0x1d4000} } },
 247        {{{1, 0x3300000, 0x3304000, 0x1a0000} } },
 248        {{{0} } },
 249        {{{1, 0x3500000, 0x3500400, 0x1ac000} } },
 250        {{{1, 0x3600000, 0x3600400, 0x1ae000} } },
 251        {{{1, 0x3700000, 0x3700400, 0x1ae400} } },
 252        {{{1, 0x3800000, 0x3804000, 0x1d0000} } },
 253        {{{1, 0x3900000, 0x3904000, 0x1b4000} } },
 254        {{{1, 0x3a00000, 0x3a04000, 0x1d8000} } },
 255        {{{0} } },
 256        {{{0} } },
 257        {{{1, 0x3d00000, 0x3d04000, 0x1dc000} } },
 258        {{{1, 0x3e00000, 0x3e01000, 0x167000} } },
 259        {{{1, 0x3f00000, 0x3f01000, 0x168000} } }
 260};
 261
 262/*
 263 * top 12 bits of crb internal address (hub, agent)
 264 */
 265static unsigned qla82xx_crb_hub_agt[64] = {
 266        0,
 267        QLA82XX_HW_CRB_HUB_AGT_ADR_PS,
 268        QLA82XX_HW_CRB_HUB_AGT_ADR_MN,
 269        QLA82XX_HW_CRB_HUB_AGT_ADR_MS,
 270        0,
 271        QLA82XX_HW_CRB_HUB_AGT_ADR_SRE,
 272        QLA82XX_HW_CRB_HUB_AGT_ADR_NIU,
 273        QLA82XX_HW_CRB_HUB_AGT_ADR_QMN,
 274        QLA82XX_HW_CRB_HUB_AGT_ADR_SQN0,
 275        QLA82XX_HW_CRB_HUB_AGT_ADR_SQN1,
 276        QLA82XX_HW_CRB_HUB_AGT_ADR_SQN2,
 277        QLA82XX_HW_CRB_HUB_AGT_ADR_SQN3,
 278        QLA82XX_HW_CRB_HUB_AGT_ADR_I2Q,
 279        QLA82XX_HW_CRB_HUB_AGT_ADR_TIMR,
 280        QLA82XX_HW_CRB_HUB_AGT_ADR_ROMUSB,
 281        QLA82XX_HW_CRB_HUB_AGT_ADR_PGN4,
 282        QLA82XX_HW_CRB_HUB_AGT_ADR_XDMA,
 283        QLA82XX_HW_CRB_HUB_AGT_ADR_PGN0,
 284        QLA82XX_HW_CRB_HUB_AGT_ADR_PGN1,
 285        QLA82XX_HW_CRB_HUB_AGT_ADR_PGN2,
 286        QLA82XX_HW_CRB_HUB_AGT_ADR_PGN3,
 287        QLA82XX_HW_CRB_HUB_AGT_ADR_PGND,
 288        QLA82XX_HW_CRB_HUB_AGT_ADR_PGNI,
 289        QLA82XX_HW_CRB_HUB_AGT_ADR_PGS0,
 290        QLA82XX_HW_CRB_HUB_AGT_ADR_PGS1,
 291        QLA82XX_HW_CRB_HUB_AGT_ADR_PGS2,
 292        QLA82XX_HW_CRB_HUB_AGT_ADR_PGS3,
 293        0,
 294        QLA82XX_HW_CRB_HUB_AGT_ADR_PGSI,
 295        QLA82XX_HW_CRB_HUB_AGT_ADR_SN,
 296        0,
 297        QLA82XX_HW_CRB_HUB_AGT_ADR_EG,
 298        0,
 299        QLA82XX_HW_CRB_HUB_AGT_ADR_PS,
 300        QLA82XX_HW_CRB_HUB_AGT_ADR_CAM,
 301        0,
 302        0,
 303        0,
 304        0,
 305        0,
 306        QLA82XX_HW_CRB_HUB_AGT_ADR_TIMR,
 307        0,
 308        QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX1,
 309        QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX2,
 310        QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX3,
 311        QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX4,
 312        QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX5,
 313        QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX6,
 314        QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX7,
 315        QLA82XX_HW_CRB_HUB_AGT_ADR_XDMA,
 316        QLA82XX_HW_CRB_HUB_AGT_ADR_I2Q,
 317        QLA82XX_HW_CRB_HUB_AGT_ADR_ROMUSB,
 318        0,
 319        QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX0,
 320        QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX8,
 321        QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX9,
 322        QLA82XX_HW_CRB_HUB_AGT_ADR_OCM0,
 323        0,
 324        QLA82XX_HW_CRB_HUB_AGT_ADR_SMB,
 325        QLA82XX_HW_CRB_HUB_AGT_ADR_I2C0,
 326        QLA82XX_HW_CRB_HUB_AGT_ADR_I2C1,
 327        0,
 328        QLA82XX_HW_CRB_HUB_AGT_ADR_PGNC,
 329        0,
 330};
 331
 332/* Device states */
 333static char *q_dev_state[] = {
 334         "Unknown",
 335        "Cold",
 336        "Initializing",
 337        "Ready",
 338        "Need Reset",
 339        "Need Quiescent",
 340        "Failed",
 341        "Quiescent",
 342};
 343
 344char *qdev_state(uint32_t dev_state)
 345{
 346        return q_dev_state[dev_state];
 347}
 348
 349/*
 350 * In: 'off_in' is offset from CRB space in 128M pci map
 351 * Out: 'off_out' is 2M pci map addr
 352 * side effect: lock crb window
 353 */
 354static void
 355qla82xx_pci_set_crbwindow_2M(struct qla_hw_data *ha, ulong off_in,
 356                             void __iomem **off_out)
 357{
 358        u32 win_read;
 359        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 360
 361        ha->crb_win = CRB_HI(off_in);
 362        writel(ha->crb_win, CRB_WINDOW_2M + ha->nx_pcibase);
 363
 364        /* Read back value to make sure write has gone through before trying
 365         * to use it.
 366         */
 367        win_read = RD_REG_DWORD(CRB_WINDOW_2M + ha->nx_pcibase);
 368        if (win_read != ha->crb_win) {
 369                ql_dbg(ql_dbg_p3p, vha, 0xb000,
 370                    "%s: Written crbwin (0x%x) "
 371                    "!= Read crbwin (0x%x), off=0x%lx.\n",
 372                    __func__, ha->crb_win, win_read, off_in);
 373        }
 374        *off_out = (off_in & MASK(16)) + CRB_INDIRECT_2M + ha->nx_pcibase;
 375}
 376
 377static inline unsigned long
 378qla82xx_pci_set_crbwindow(struct qla_hw_data *ha, u64 off)
 379{
 380        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 381        /* See if we are currently pointing to the region we want to use next */
 382        if ((off >= QLA82XX_CRB_PCIX_HOST) && (off < QLA82XX_CRB_DDR_NET)) {
 383                /* No need to change window. PCIX and PCIEregs are in both
 384                 * regs are in both windows.
 385                 */
 386                return off;
 387        }
 388
 389        if ((off >= QLA82XX_CRB_PCIX_HOST) && (off < QLA82XX_CRB_PCIX_HOST2)) {
 390                /* We are in first CRB window */
 391                if (ha->curr_window != 0)
 392                        WARN_ON(1);
 393                return off;
 394        }
 395
 396        if ((off > QLA82XX_CRB_PCIX_HOST2) && (off < QLA82XX_CRB_MAX)) {
 397                /* We are in second CRB window */
 398                off = off - QLA82XX_CRB_PCIX_HOST2 + QLA82XX_CRB_PCIX_HOST;
 399
 400                if (ha->curr_window != 1)
 401                        return off;
 402
 403                /* We are in the QM or direct access
 404                 * register region - do nothing
 405                 */
 406                if ((off >= QLA82XX_PCI_DIRECT_CRB) &&
 407                        (off < QLA82XX_PCI_CAMQM_MAX))
 408                        return off;
 409        }
 410        /* strange address given */
 411        ql_dbg(ql_dbg_p3p, vha, 0xb001,
 412            "%s: Warning: unm_nic_pci_set_crbwindow "
 413            "called with an unknown address(%llx).\n",
 414            QLA2XXX_DRIVER_NAME, off);
 415        return off;
 416}
 417
 418static int
 419qla82xx_pci_get_crb_addr_2M(struct qla_hw_data *ha, ulong off_in,
 420                            void __iomem **off_out)
 421{
 422        struct crb_128M_2M_sub_block_map *m;
 423
 424        if (off_in >= QLA82XX_CRB_MAX)
 425                return -1;
 426
 427        if (off_in >= QLA82XX_PCI_CAMQM && off_in < QLA82XX_PCI_CAMQM_2M_END) {
 428                *off_out = (off_in - QLA82XX_PCI_CAMQM) +
 429                    QLA82XX_PCI_CAMQM_2M_BASE + ha->nx_pcibase;
 430                return 0;
 431        }
 432
 433        if (off_in < QLA82XX_PCI_CRBSPACE)
 434                return -1;
 435
 436        off_in -= QLA82XX_PCI_CRBSPACE;
 437
 438        /* Try direct map */
 439        m = &crb_128M_2M_map[CRB_BLK(off_in)].sub_block[CRB_SUBBLK(off_in)];
 440
 441        if (m->valid && (m->start_128M <= off_in) && (m->end_128M > off_in)) {
 442                *off_out = off_in + m->start_2M - m->start_128M + ha->nx_pcibase;
 443                return 0;
 444        }
 445        /* Not in direct map, use crb window */
 446        *off_out = (void __iomem *)off_in;
 447        return 1;
 448}
 449
 450#define CRB_WIN_LOCK_TIMEOUT 100000000
 451static int qla82xx_crb_win_lock(struct qla_hw_data *ha)
 452{
 453        int done = 0, timeout = 0;
 454
 455        while (!done) {
 456                /* acquire semaphore3 from PCI HW block */
 457                done = qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_LOCK));
 458                if (done == 1)
 459                        break;
 460                if (timeout >= CRB_WIN_LOCK_TIMEOUT)
 461                        return -1;
 462                timeout++;
 463        }
 464        qla82xx_wr_32(ha, QLA82XX_CRB_WIN_LOCK_ID, ha->portnum);
 465        return 0;
 466}
 467
 468int
 469qla82xx_wr_32(struct qla_hw_data *ha, ulong off_in, u32 data)
 470{
 471        void __iomem *off;
 472        unsigned long flags = 0;
 473        int rv;
 474
 475        rv = qla82xx_pci_get_crb_addr_2M(ha, off_in, &off);
 476
 477        BUG_ON(rv == -1);
 478
 479        if (rv == 1) {
 480#ifndef __CHECKER__
 481                write_lock_irqsave(&ha->hw_lock, flags);
 482#endif
 483                qla82xx_crb_win_lock(ha);
 484                qla82xx_pci_set_crbwindow_2M(ha, off_in, &off);
 485        }
 486
 487        writel(data, (void __iomem *)off);
 488
 489        if (rv == 1) {
 490                qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_UNLOCK));
 491#ifndef __CHECKER__
 492                write_unlock_irqrestore(&ha->hw_lock, flags);
 493#endif
 494        }
 495        return 0;
 496}
 497
 498int
 499qla82xx_rd_32(struct qla_hw_data *ha, ulong off_in)
 500{
 501        void __iomem *off;
 502        unsigned long flags = 0;
 503        int rv;
 504        u32 data;
 505
 506        rv = qla82xx_pci_get_crb_addr_2M(ha, off_in, &off);
 507
 508        BUG_ON(rv == -1);
 509
 510        if (rv == 1) {
 511#ifndef __CHECKER__
 512                write_lock_irqsave(&ha->hw_lock, flags);
 513#endif
 514                qla82xx_crb_win_lock(ha);
 515                qla82xx_pci_set_crbwindow_2M(ha, off_in, &off);
 516        }
 517        data = RD_REG_DWORD(off);
 518
 519        if (rv == 1) {
 520                qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_UNLOCK));
 521#ifndef __CHECKER__
 522                write_unlock_irqrestore(&ha->hw_lock, flags);
 523#endif
 524        }
 525        return data;
 526}
 527
 528#define IDC_LOCK_TIMEOUT 100000000
 529int qla82xx_idc_lock(struct qla_hw_data *ha)
 530{
 531        int i;
 532        int done = 0, timeout = 0;
 533
 534        while (!done) {
 535                /* acquire semaphore5 from PCI HW block */
 536                done = qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM5_LOCK));
 537                if (done == 1)
 538                        break;
 539                if (timeout >= IDC_LOCK_TIMEOUT)
 540                        return -1;
 541
 542                timeout++;
 543
 544                /* Yield CPU */
 545                if (!in_interrupt())
 546                        schedule();
 547                else {
 548                        for (i = 0; i < 20; i++)
 549                                cpu_relax();
 550                }
 551        }
 552
 553        return 0;
 554}
 555
 556void qla82xx_idc_unlock(struct qla_hw_data *ha)
 557{
 558        qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM5_UNLOCK));
 559}
 560
 561/*
 562 * check memory access boundary.
 563 * used by test agent. support ddr access only for now
 564 */
 565static unsigned long
 566qla82xx_pci_mem_bound_check(struct qla_hw_data *ha,
 567        unsigned long long addr, int size)
 568{
 569        if (!addr_in_range(addr, QLA82XX_ADDR_DDR_NET,
 570                QLA82XX_ADDR_DDR_NET_MAX) ||
 571                !addr_in_range(addr + size - 1, QLA82XX_ADDR_DDR_NET,
 572                QLA82XX_ADDR_DDR_NET_MAX) ||
 573                ((size != 1) && (size != 2) && (size != 4) && (size != 8)))
 574                        return 0;
 575        else
 576                return 1;
 577}
 578
 579static int qla82xx_pci_set_window_warning_count;
 580
 581static unsigned long
 582qla82xx_pci_set_window(struct qla_hw_data *ha, unsigned long long addr)
 583{
 584        int window;
 585        u32 win_read;
 586        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 587
 588        if (addr_in_range(addr, QLA82XX_ADDR_DDR_NET,
 589                QLA82XX_ADDR_DDR_NET_MAX)) {
 590                /* DDR network side */
 591                window = MN_WIN(addr);
 592                ha->ddr_mn_window = window;
 593                qla82xx_wr_32(ha,
 594                        ha->mn_win_crb | QLA82XX_PCI_CRBSPACE, window);
 595                win_read = qla82xx_rd_32(ha,
 596                        ha->mn_win_crb | QLA82XX_PCI_CRBSPACE);
 597                if ((win_read << 17) != window) {
 598                        ql_dbg(ql_dbg_p3p, vha, 0xb003,
 599                            "%s: Written MNwin (0x%x) != Read MNwin (0x%x).\n",
 600                            __func__, window, win_read);
 601                }
 602                addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_DDR_NET;
 603        } else if (addr_in_range(addr, QLA82XX_ADDR_OCM0,
 604                QLA82XX_ADDR_OCM0_MAX)) {
 605                unsigned int temp1;
 606                if ((addr & 0x00ff800) == 0xff800) {
 607                        ql_log(ql_log_warn, vha, 0xb004,
 608                            "%s: QM access not handled.\n", __func__);
 609                        addr = -1UL;
 610                }
 611                window = OCM_WIN(addr);
 612                ha->ddr_mn_window = window;
 613                qla82xx_wr_32(ha,
 614                        ha->mn_win_crb | QLA82XX_PCI_CRBSPACE, window);
 615                win_read = qla82xx_rd_32(ha,
 616                        ha->mn_win_crb | QLA82XX_PCI_CRBSPACE);
 617                temp1 = ((window & 0x1FF) << 7) |
 618                    ((window & 0x0FFFE0000) >> 17);
 619                if (win_read != temp1) {
 620                        ql_log(ql_log_warn, vha, 0xb005,
 621                            "%s: Written OCMwin (0x%x) != Read OCMwin (0x%x).\n",
 622                            __func__, temp1, win_read);
 623                }
 624                addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_OCM0_2M;
 625
 626        } else if (addr_in_range(addr, QLA82XX_ADDR_QDR_NET,
 627                QLA82XX_P3_ADDR_QDR_NET_MAX)) {
 628                /* QDR network side */
 629                window = MS_WIN(addr);
 630                ha->qdr_sn_window = window;
 631                qla82xx_wr_32(ha,
 632                        ha->ms_win_crb | QLA82XX_PCI_CRBSPACE, window);
 633                win_read = qla82xx_rd_32(ha,
 634                        ha->ms_win_crb | QLA82XX_PCI_CRBSPACE);
 635                if (win_read != window) {
 636                        ql_log(ql_log_warn, vha, 0xb006,
 637                            "%s: Written MSwin (0x%x) != Read MSwin (0x%x).\n",
 638                            __func__, window, win_read);
 639                }
 640                addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_QDR_NET;
 641        } else {
 642                /*
 643                 * peg gdb frequently accesses memory that doesn't exist,
 644                 * this limits the chit chat so debugging isn't slowed down.
 645                 */
 646                if ((qla82xx_pci_set_window_warning_count++ < 8) ||
 647                    (qla82xx_pci_set_window_warning_count%64 == 0)) {
 648                        ql_log(ql_log_warn, vha, 0xb007,
 649                            "%s: Warning:%s Unknown address range!.\n",
 650                            __func__, QLA2XXX_DRIVER_NAME);
 651                }
 652                addr = -1UL;
 653        }
 654        return addr;
 655}
 656
 657/* check if address is in the same windows as the previous access */
 658static int qla82xx_pci_is_same_window(struct qla_hw_data *ha,
 659        unsigned long long addr)
 660{
 661        int                     window;
 662        unsigned long long      qdr_max;
 663
 664        qdr_max = QLA82XX_P3_ADDR_QDR_NET_MAX;
 665
 666        /* DDR network side */
 667        if (addr_in_range(addr, QLA82XX_ADDR_DDR_NET,
 668                QLA82XX_ADDR_DDR_NET_MAX))
 669                BUG();
 670        else if (addr_in_range(addr, QLA82XX_ADDR_OCM0,
 671                QLA82XX_ADDR_OCM0_MAX))
 672                return 1;
 673        else if (addr_in_range(addr, QLA82XX_ADDR_OCM1,
 674                QLA82XX_ADDR_OCM1_MAX))
 675                return 1;
 676        else if (addr_in_range(addr, QLA82XX_ADDR_QDR_NET, qdr_max)) {
 677                /* QDR network side */
 678                window = ((addr - QLA82XX_ADDR_QDR_NET) >> 22) & 0x3f;
 679                if (ha->qdr_sn_window == window)
 680                        return 1;
 681        }
 682        return 0;
 683}
 684
 685static int qla82xx_pci_mem_read_direct(struct qla_hw_data *ha,
 686        u64 off, void *data, int size)
 687{
 688        unsigned long   flags;
 689        void __iomem *addr = NULL;
 690        int             ret = 0;
 691        u64             start;
 692        uint8_t __iomem  *mem_ptr = NULL;
 693        unsigned long   mem_base;
 694        unsigned long   mem_page;
 695        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 696
 697        write_lock_irqsave(&ha->hw_lock, flags);
 698
 699        /*
 700         * If attempting to access unknown address or straddle hw windows,
 701         * do not access.
 702         */
 703        start = qla82xx_pci_set_window(ha, off);
 704        if ((start == -1UL) ||
 705                (qla82xx_pci_is_same_window(ha, off + size - 1) == 0)) {
 706                write_unlock_irqrestore(&ha->hw_lock, flags);
 707                ql_log(ql_log_fatal, vha, 0xb008,
 708                    "%s out of bound pci memory "
 709                    "access, offset is 0x%llx.\n",
 710                    QLA2XXX_DRIVER_NAME, off);
 711                return -1;
 712        }
 713
 714        write_unlock_irqrestore(&ha->hw_lock, flags);
 715        mem_base = pci_resource_start(ha->pdev, 0);
 716        mem_page = start & PAGE_MASK;
 717        /* Map two pages whenever user tries to access addresses in two
 718        * consecutive pages.
 719        */
 720        if (mem_page != ((start + size - 1) & PAGE_MASK))
 721                mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE * 2);
 722        else
 723                mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE);
 724        if (mem_ptr == NULL) {
 725                *(u8  *)data = 0;
 726                return -1;
 727        }
 728        addr = mem_ptr;
 729        addr += start & (PAGE_SIZE - 1);
 730        write_lock_irqsave(&ha->hw_lock, flags);
 731
 732        switch (size) {
 733        case 1:
 734                *(u8  *)data = readb(addr);
 735                break;
 736        case 2:
 737                *(u16 *)data = readw(addr);
 738                break;
 739        case 4:
 740                *(u32 *)data = readl(addr);
 741                break;
 742        case 8:
 743                *(u64 *)data = readq(addr);
 744                break;
 745        default:
 746                ret = -1;
 747                break;
 748        }
 749        write_unlock_irqrestore(&ha->hw_lock, flags);
 750
 751        if (mem_ptr)
 752                iounmap(mem_ptr);
 753        return ret;
 754}
 755
 756static int
 757qla82xx_pci_mem_write_direct(struct qla_hw_data *ha,
 758        u64 off, void *data, int size)
 759{
 760        unsigned long   flags;
 761        void  __iomem *addr = NULL;
 762        int             ret = 0;
 763        u64             start;
 764        uint8_t __iomem *mem_ptr = NULL;
 765        unsigned long   mem_base;
 766        unsigned long   mem_page;
 767        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 768
 769        write_lock_irqsave(&ha->hw_lock, flags);
 770
 771        /*
 772         * If attempting to access unknown address or straddle hw windows,
 773         * do not access.
 774         */
 775        start = qla82xx_pci_set_window(ha, off);
 776        if ((start == -1UL) ||
 777                (qla82xx_pci_is_same_window(ha, off + size - 1) == 0)) {
 778                write_unlock_irqrestore(&ha->hw_lock, flags);
 779                ql_log(ql_log_fatal, vha, 0xb009,
 780                    "%s out of bount memory "
 781                    "access, offset is 0x%llx.\n",
 782                    QLA2XXX_DRIVER_NAME, off);
 783                return -1;
 784        }
 785
 786        write_unlock_irqrestore(&ha->hw_lock, flags);
 787        mem_base = pci_resource_start(ha->pdev, 0);
 788        mem_page = start & PAGE_MASK;
 789        /* Map two pages whenever user tries to access addresses in two
 790         * consecutive pages.
 791         */
 792        if (mem_page != ((start + size - 1) & PAGE_MASK))
 793                mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE*2);
 794        else
 795                mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE);
 796        if (mem_ptr == NULL)
 797                return -1;
 798
 799        addr = mem_ptr;
 800        addr += start & (PAGE_SIZE - 1);
 801        write_lock_irqsave(&ha->hw_lock, flags);
 802
 803        switch (size) {
 804        case 1:
 805                writeb(*(u8  *)data, addr);
 806                break;
 807        case 2:
 808                writew(*(u16 *)data, addr);
 809                break;
 810        case 4:
 811                writel(*(u32 *)data, addr);
 812                break;
 813        case 8:
 814                writeq(*(u64 *)data, addr);
 815                break;
 816        default:
 817                ret = -1;
 818                break;
 819        }
 820        write_unlock_irqrestore(&ha->hw_lock, flags);
 821        if (mem_ptr)
 822                iounmap(mem_ptr);
 823        return ret;
 824}
 825
 826#define MTU_FUDGE_FACTOR 100
 827static unsigned long
 828qla82xx_decode_crb_addr(unsigned long addr)
 829{
 830        int i;
 831        unsigned long base_addr, offset, pci_base;
 832
 833        if (!qla82xx_crb_table_initialized)
 834                qla82xx_crb_addr_transform_setup();
 835
 836        pci_base = ADDR_ERROR;
 837        base_addr = addr & 0xfff00000;
 838        offset = addr & 0x000fffff;
 839
 840        for (i = 0; i < MAX_CRB_XFORM; i++) {
 841                if (crb_addr_xform[i] == base_addr) {
 842                        pci_base = i << 20;
 843                        break;
 844                }
 845        }
 846        if (pci_base == ADDR_ERROR)
 847                return pci_base;
 848        return pci_base + offset;
 849}
 850
 851static long rom_max_timeout = 100;
 852static long qla82xx_rom_lock_timeout = 100;
 853
 854static int
 855qla82xx_rom_lock(struct qla_hw_data *ha)
 856{
 857        int done = 0, timeout = 0;
 858        uint32_t lock_owner = 0;
 859        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 860
 861        while (!done) {
 862                /* acquire semaphore2 from PCI HW block */
 863                done = qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_LOCK));
 864                if (done == 1)
 865                        break;
 866                if (timeout >= qla82xx_rom_lock_timeout) {
 867                        lock_owner = qla82xx_rd_32(ha, QLA82XX_ROM_LOCK_ID);
 868                        ql_dbg(ql_dbg_p3p, vha, 0xb157,
 869                            "%s: Simultaneous flash access by following ports, active port = %d: accessing port = %d",
 870                            __func__, ha->portnum, lock_owner);
 871                        return -1;
 872                }
 873                timeout++;
 874        }
 875        qla82xx_wr_32(ha, QLA82XX_ROM_LOCK_ID, ha->portnum);
 876        return 0;
 877}
 878
 879static void
 880qla82xx_rom_unlock(struct qla_hw_data *ha)
 881{
 882        qla82xx_wr_32(ha, QLA82XX_ROM_LOCK_ID, 0xffffffff);
 883        qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_UNLOCK));
 884}
 885
 886static int
 887qla82xx_wait_rom_busy(struct qla_hw_data *ha)
 888{
 889        long timeout = 0;
 890        long done = 0 ;
 891        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 892
 893        while (done == 0) {
 894                done = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_STATUS);
 895                done &= 4;
 896                timeout++;
 897                if (timeout >= rom_max_timeout) {
 898                        ql_dbg(ql_dbg_p3p, vha, 0xb00a,
 899                            "%s: Timeout reached waiting for rom busy.\n",
 900                            QLA2XXX_DRIVER_NAME);
 901                        return -1;
 902                }
 903        }
 904        return 0;
 905}
 906
 907static int
 908qla82xx_wait_rom_done(struct qla_hw_data *ha)
 909{
 910        long timeout = 0;
 911        long done = 0 ;
 912        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 913
 914        while (done == 0) {
 915                done = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_STATUS);
 916                done &= 2;
 917                timeout++;
 918                if (timeout >= rom_max_timeout) {
 919                        ql_dbg(ql_dbg_p3p, vha, 0xb00b,
 920                            "%s: Timeout reached waiting for rom done.\n",
 921                            QLA2XXX_DRIVER_NAME);
 922                        return -1;
 923                }
 924        }
 925        return 0;
 926}
 927
 928static int
 929qla82xx_md_rw_32(struct qla_hw_data *ha, uint32_t off, u32 data, uint8_t flag)
 930{
 931        uint32_t  off_value, rval = 0;
 932
 933        WRT_REG_DWORD(CRB_WINDOW_2M + ha->nx_pcibase, off & 0xFFFF0000);
 934
 935        /* Read back value to make sure write has gone through */
 936        RD_REG_DWORD(CRB_WINDOW_2M + ha->nx_pcibase);
 937        off_value  = (off & 0x0000FFFF);
 938
 939        if (flag)
 940                WRT_REG_DWORD(off_value + CRB_INDIRECT_2M + ha->nx_pcibase,
 941                              data);
 942        else
 943                rval = RD_REG_DWORD(off_value + CRB_INDIRECT_2M +
 944                                    ha->nx_pcibase);
 945
 946        return rval;
 947}
 948
 949static int
 950qla82xx_do_rom_fast_read(struct qla_hw_data *ha, int addr, int *valp)
 951{
 952        /* Dword reads to flash. */
 953        qla82xx_md_rw_32(ha, MD_DIRECT_ROM_WINDOW, (addr & 0xFFFF0000), 1);
 954        *valp = qla82xx_md_rw_32(ha, MD_DIRECT_ROM_READ_BASE +
 955            (addr & 0x0000FFFF), 0, 0);
 956
 957        return 0;
 958}
 959
 960static int
 961qla82xx_rom_fast_read(struct qla_hw_data *ha, int addr, int *valp)
 962{
 963        int ret, loops = 0;
 964        uint32_t lock_owner = 0;
 965        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 966
 967        while ((qla82xx_rom_lock(ha) != 0) && (loops < 50000)) {
 968                udelay(100);
 969                schedule();
 970                loops++;
 971        }
 972        if (loops >= 50000) {
 973                lock_owner = qla82xx_rd_32(ha, QLA82XX_ROM_LOCK_ID);
 974                ql_log(ql_log_fatal, vha, 0x00b9,
 975                    "Failed to acquire SEM2 lock, Lock Owner %u.\n",
 976                    lock_owner);
 977                return -1;
 978        }
 979        ret = qla82xx_do_rom_fast_read(ha, addr, valp);
 980        qla82xx_rom_unlock(ha);
 981        return ret;
 982}
 983
 984static int
 985qla82xx_read_status_reg(struct qla_hw_data *ha, uint32_t *val)
 986{
 987        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 988        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_RDSR);
 989        qla82xx_wait_rom_busy(ha);
 990        if (qla82xx_wait_rom_done(ha)) {
 991                ql_log(ql_log_warn, vha, 0xb00c,
 992                    "Error waiting for rom done.\n");
 993                return -1;
 994        }
 995        *val = qla82xx_rd_32(ha, QLA82XX_ROMUSB_ROM_RDATA);
 996        return 0;
 997}
 998
 999static int
1000qla82xx_flash_wait_write_finish(struct qla_hw_data *ha)
1001{
1002        long timeout = 0;
1003        uint32_t done = 1 ;
1004        uint32_t val;
1005        int ret = 0;
1006        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1007
1008        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 0);
1009        while ((done != 0) && (ret == 0)) {
1010                ret = qla82xx_read_status_reg(ha, &val);
1011                done = val & 1;
1012                timeout++;
1013                udelay(10);
1014                cond_resched();
1015                if (timeout >= 50000) {
1016                        ql_log(ql_log_warn, vha, 0xb00d,
1017                            "Timeout reached waiting for write finish.\n");
1018                        return -1;
1019                }
1020        }
1021        return ret;
1022}
1023
1024static int
1025qla82xx_flash_set_write_enable(struct qla_hw_data *ha)
1026{
1027        uint32_t val;
1028        qla82xx_wait_rom_busy(ha);
1029        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 0);
1030        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_WREN);
1031        qla82xx_wait_rom_busy(ha);
1032        if (qla82xx_wait_rom_done(ha))
1033                return -1;
1034        if (qla82xx_read_status_reg(ha, &val) != 0)
1035                return -1;
1036        if ((val & 2) != 2)
1037                return -1;
1038        return 0;
1039}
1040
1041static int
1042qla82xx_write_status_reg(struct qla_hw_data *ha, uint32_t val)
1043{
1044        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1045        if (qla82xx_flash_set_write_enable(ha))
1046                return -1;
1047        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_WDATA, val);
1048        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, 0x1);
1049        if (qla82xx_wait_rom_done(ha)) {
1050                ql_log(ql_log_warn, vha, 0xb00e,
1051                    "Error waiting for rom done.\n");
1052                return -1;
1053        }
1054        return qla82xx_flash_wait_write_finish(ha);
1055}
1056
1057static int
1058qla82xx_write_disable_flash(struct qla_hw_data *ha)
1059{
1060        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1061        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_WRDI);
1062        if (qla82xx_wait_rom_done(ha)) {
1063                ql_log(ql_log_warn, vha, 0xb00f,
1064                    "Error waiting for rom done.\n");
1065                return -1;
1066        }
1067        return 0;
1068}
1069
1070static int
1071ql82xx_rom_lock_d(struct qla_hw_data *ha)
1072{
1073        int loops = 0;
1074        uint32_t lock_owner = 0;
1075        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1076
1077        while ((qla82xx_rom_lock(ha) != 0) && (loops < 50000)) {
1078                udelay(100);
1079                cond_resched();
1080                loops++;
1081        }
1082        if (loops >= 50000) {
1083                lock_owner = qla82xx_rd_32(ha, QLA82XX_ROM_LOCK_ID);
1084                ql_log(ql_log_warn, vha, 0xb010,
1085                    "ROM lock failed, Lock Owner %u.\n", lock_owner);
1086                return -1;
1087        }
1088        return 0;
1089}
1090
1091static int
1092qla82xx_write_flash_dword(struct qla_hw_data *ha, uint32_t flashaddr,
1093        uint32_t data)
1094{
1095        int ret = 0;
1096        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1097
1098        ret = ql82xx_rom_lock_d(ha);
1099        if (ret < 0) {
1100                ql_log(ql_log_warn, vha, 0xb011,
1101                    "ROM lock failed.\n");
1102                return ret;
1103        }
1104
1105        if (qla82xx_flash_set_write_enable(ha))
1106                goto done_write;
1107
1108        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_WDATA, data);
1109        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ADDRESS, flashaddr);
1110        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 3);
1111        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_PP);
1112        qla82xx_wait_rom_busy(ha);
1113        if (qla82xx_wait_rom_done(ha)) {
1114                ql_log(ql_log_warn, vha, 0xb012,
1115                    "Error waiting for rom done.\n");
1116                ret = -1;
1117                goto done_write;
1118        }
1119
1120        ret = qla82xx_flash_wait_write_finish(ha);
1121
1122done_write:
1123        qla82xx_rom_unlock(ha);
1124        return ret;
1125}
1126
1127/* This routine does CRB initialize sequence
1128 *  to put the ISP into operational state
1129 */
1130static int
1131qla82xx_pinit_from_rom(scsi_qla_host_t *vha)
1132{
1133        int addr, val;
1134        int i ;
1135        struct crb_addr_pair *buf;
1136        unsigned long off;
1137        unsigned offset, n;
1138        struct qla_hw_data *ha = vha->hw;
1139
1140        struct crb_addr_pair {
1141                long addr;
1142                long data;
1143        };
1144
1145        /* Halt all the individual PEGs and other blocks of the ISP */
1146        qla82xx_rom_lock(ha);
1147
1148        /* disable all I2Q */
1149        qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x10, 0x0);
1150        qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x14, 0x0);
1151        qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x18, 0x0);
1152        qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x1c, 0x0);
1153        qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x20, 0x0);
1154        qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x24, 0x0);
1155
1156        /* disable all niu interrupts */
1157        qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x40, 0xff);
1158        /* disable xge rx/tx */
1159        qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x70000, 0x00);
1160        /* disable xg1 rx/tx */
1161        qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x80000, 0x00);
1162        /* disable sideband mac */
1163        qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x90000, 0x00);
1164        /* disable ap0 mac */
1165        qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0xa0000, 0x00);
1166        /* disable ap1 mac */
1167        qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0xb0000, 0x00);
1168
1169        /* halt sre */
1170        val = qla82xx_rd_32(ha, QLA82XX_CRB_SRE + 0x1000);
1171        qla82xx_wr_32(ha, QLA82XX_CRB_SRE + 0x1000, val & (~(0x1)));
1172
1173        /* halt epg */
1174        qla82xx_wr_32(ha, QLA82XX_CRB_EPG + 0x1300, 0x1);
1175
1176        /* halt timers */
1177        qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x0, 0x0);
1178        qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x8, 0x0);
1179        qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x10, 0x0);
1180        qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x18, 0x0);
1181        qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x100, 0x0);
1182        qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x200, 0x0);
1183
1184        /* halt pegs */
1185        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x3c, 1);
1186        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1 + 0x3c, 1);
1187        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2 + 0x3c, 1);
1188        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3 + 0x3c, 1);
1189        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_4 + 0x3c, 1);
1190        msleep(20);
1191
1192        /* big hammer */
1193        if (test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
1194                /* don't reset CAM block on reset */
1195                qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xfeffffff);
1196        else
1197                qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xffffffff);
1198        qla82xx_rom_unlock(ha);
1199
1200        /* Read the signature value from the flash.
1201         * Offset 0: Contain signature (0xcafecafe)
1202         * Offset 4: Offset and number of addr/value pairs
1203         * that present in CRB initialize sequence
1204         */
1205        if (qla82xx_rom_fast_read(ha, 0, &n) != 0 || n != 0xcafecafeUL ||
1206            qla82xx_rom_fast_read(ha, 4, &n) != 0) {
1207                ql_log(ql_log_fatal, vha, 0x006e,
1208                    "Error Reading crb_init area: n: %08x.\n", n);
1209                return -1;
1210        }
1211
1212        /* Offset in flash = lower 16 bits
1213         * Number of entries = upper 16 bits
1214         */
1215        offset = n & 0xffffU;
1216        n = (n >> 16) & 0xffffU;
1217
1218        /* number of addr/value pair should not exceed 1024 entries */
1219        if (n  >= 1024) {
1220                ql_log(ql_log_fatal, vha, 0x0071,
1221                    "Card flash not initialized:n=0x%x.\n", n);
1222                return -1;
1223        }
1224
1225        ql_log(ql_log_info, vha, 0x0072,
1226            "%d CRB init values found in ROM.\n", n);
1227
1228        buf = kmalloc(n * sizeof(struct crb_addr_pair), GFP_KERNEL);
1229        if (buf == NULL) {
1230                ql_log(ql_log_fatal, vha, 0x010c,
1231                    "Unable to allocate memory.\n");
1232                return -1;
1233        }
1234
1235        for (i = 0; i < n; i++) {
1236                if (qla82xx_rom_fast_read(ha, 8*i + 4*offset, &val) != 0 ||
1237                    qla82xx_rom_fast_read(ha, 8*i + 4*offset + 4, &addr) != 0) {
1238                        kfree(buf);
1239                        return -1;
1240                }
1241
1242                buf[i].addr = addr;
1243                buf[i].data = val;
1244        }
1245
1246        for (i = 0; i < n; i++) {
1247                /* Translate internal CRB initialization
1248                 * address to PCI bus address
1249                 */
1250                off = qla82xx_decode_crb_addr((unsigned long)buf[i].addr) +
1251                    QLA82XX_PCI_CRBSPACE;
1252                /* Not all CRB  addr/value pair to be written,
1253                 * some of them are skipped
1254                 */
1255
1256                /* skipping cold reboot MAGIC */
1257                if (off == QLA82XX_CAM_RAM(0x1fc))
1258                        continue;
1259
1260                /* do not reset PCI */
1261                if (off == (ROMUSB_GLB + 0xbc))
1262                        continue;
1263
1264                /* skip core clock, so that firmware can increase the clock */
1265                if (off == (ROMUSB_GLB + 0xc8))
1266                        continue;
1267
1268                /* skip the function enable register */
1269                if (off == QLA82XX_PCIE_REG(PCIE_SETUP_FUNCTION))
1270                        continue;
1271
1272                if (off == QLA82XX_PCIE_REG(PCIE_SETUP_FUNCTION2))
1273                        continue;
1274
1275                if ((off & 0x0ff00000) == QLA82XX_CRB_SMB)
1276                        continue;
1277
1278                if ((off & 0x0ff00000) == QLA82XX_CRB_DDR_NET)
1279                        continue;
1280
1281                if (off == ADDR_ERROR) {
1282                        ql_log(ql_log_fatal, vha, 0x0116,
1283                            "Unknown addr: 0x%08lx.\n", buf[i].addr);
1284                        continue;
1285                }
1286
1287                qla82xx_wr_32(ha, off, buf[i].data);
1288
1289                /* ISP requires much bigger delay to settle down,
1290                 * else crb_window returns 0xffffffff
1291                 */
1292                if (off == QLA82XX_ROMUSB_GLB_SW_RESET)
1293                        msleep(1000);
1294
1295                /* ISP requires millisec delay between
1296                 * successive CRB register updation
1297                 */
1298                msleep(1);
1299        }
1300
1301        kfree(buf);
1302
1303        /* Resetting the data and instruction cache */
1304        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0xec, 0x1e);
1305        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0x4c, 8);
1306        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_I+0x4c, 8);
1307
1308        /* Clear all protocol processing engines */
1309        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0x8, 0);
1310        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0xc, 0);
1311        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0x8, 0);
1312        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0xc, 0);
1313        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0x8, 0);
1314        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0xc, 0);
1315        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0x8, 0);
1316        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0xc, 0);
1317        return 0;
1318}
1319
1320static int
1321qla82xx_pci_mem_write_2M(struct qla_hw_data *ha,
1322                u64 off, void *data, int size)
1323{
1324        int i, j, ret = 0, loop, sz[2], off0;
1325        int scale, shift_amount, startword;
1326        uint32_t temp;
1327        uint64_t off8, mem_crb, tmpw, word[2] = {0, 0};
1328
1329        /*
1330         * If not MN, go check for MS or invalid.
1331         */
1332        if (off >= QLA82XX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX)
1333                mem_crb = QLA82XX_CRB_QDR_NET;
1334        else {
1335                mem_crb = QLA82XX_CRB_DDR_NET;
1336                if (qla82xx_pci_mem_bound_check(ha, off, size) == 0)
1337                        return qla82xx_pci_mem_write_direct(ha,
1338                            off, data, size);
1339        }
1340
1341        off0 = off & 0x7;
1342        sz[0] = (size < (8 - off0)) ? size : (8 - off0);
1343        sz[1] = size - sz[0];
1344
1345        off8 = off & 0xfffffff0;
1346        loop = (((off & 0xf) + size - 1) >> 4) + 1;
1347        shift_amount = 4;
1348        scale = 2;
1349        startword = (off & 0xf)/8;
1350
1351        for (i = 0; i < loop; i++) {
1352                if (qla82xx_pci_mem_read_2M(ha, off8 +
1353                    (i << shift_amount), &word[i * scale], 8))
1354                        return -1;
1355        }
1356
1357        switch (size) {
1358        case 1:
1359                tmpw = *((uint8_t *)data);
1360                break;
1361        case 2:
1362                tmpw = *((uint16_t *)data);
1363                break;
1364        case 4:
1365                tmpw = *((uint32_t *)data);
1366                break;
1367        case 8:
1368        default:
1369                tmpw = *((uint64_t *)data);
1370                break;
1371        }
1372
1373        if (sz[0] == 8) {
1374                word[startword] = tmpw;
1375        } else {
1376                word[startword] &=
1377                        ~((~(~0ULL << (sz[0] * 8))) << (off0 * 8));
1378                word[startword] |= tmpw << (off0 * 8);
1379        }
1380        if (sz[1] != 0) {
1381                word[startword+1] &= ~(~0ULL << (sz[1] * 8));
1382                word[startword+1] |= tmpw >> (sz[0] * 8);
1383        }
1384
1385        for (i = 0; i < loop; i++) {
1386                temp = off8 + (i << shift_amount);
1387                qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_LO, temp);
1388                temp = 0;
1389                qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_HI, temp);
1390                temp = word[i * scale] & 0xffffffff;
1391                qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_LO, temp);
1392                temp = (word[i * scale] >> 32) & 0xffffffff;
1393                qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_HI, temp);
1394                temp = word[i*scale + 1] & 0xffffffff;
1395                qla82xx_wr_32(ha, mem_crb +
1396                    MIU_TEST_AGT_WRDATA_UPPER_LO, temp);
1397                temp = (word[i*scale + 1] >> 32) & 0xffffffff;
1398                qla82xx_wr_32(ha, mem_crb +
1399                    MIU_TEST_AGT_WRDATA_UPPER_HI, temp);
1400
1401                temp = MIU_TA_CTL_ENABLE | MIU_TA_CTL_WRITE;
1402                qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1403                temp = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE | MIU_TA_CTL_WRITE;
1404                qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1405
1406                for (j = 0; j < MAX_CTL_CHECK; j++) {
1407                        temp = qla82xx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL);
1408                        if ((temp & MIU_TA_CTL_BUSY) == 0)
1409                                break;
1410                }
1411
1412                if (j >= MAX_CTL_CHECK) {
1413                        if (printk_ratelimit())
1414                                dev_err(&ha->pdev->dev,
1415                                    "failed to write through agent.\n");
1416                        ret = -1;
1417                        break;
1418                }
1419        }
1420
1421        return ret;
1422}
1423
1424static int
1425qla82xx_fw_load_from_flash(struct qla_hw_data *ha)
1426{
1427        int  i;
1428        long size = 0;
1429        long flashaddr = ha->flt_region_bootload << 2;
1430        long memaddr = BOOTLD_START;
1431        u64 data;
1432        u32 high, low;
1433        size = (IMAGE_START - BOOTLD_START) / 8;
1434
1435        for (i = 0; i < size; i++) {
1436                if ((qla82xx_rom_fast_read(ha, flashaddr, (int *)&low)) ||
1437                    (qla82xx_rom_fast_read(ha, flashaddr + 4, (int *)&high))) {
1438                        return -1;
1439                }
1440                data = ((u64)high << 32) | low ;
1441                qla82xx_pci_mem_write_2M(ha, memaddr, &data, 8);
1442                flashaddr += 8;
1443                memaddr += 8;
1444
1445                if (i % 0x1000 == 0)
1446                        msleep(1);
1447        }
1448        udelay(100);
1449        read_lock(&ha->hw_lock);
1450        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x18, 0x1020);
1451        qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0x80001e);
1452        read_unlock(&ha->hw_lock);
1453        return 0;
1454}
1455
1456int
1457qla82xx_pci_mem_read_2M(struct qla_hw_data *ha,
1458                u64 off, void *data, int size)
1459{
1460        int i, j = 0, k, start, end, loop, sz[2], off0[2];
1461        int           shift_amount;
1462        uint32_t      temp;
1463        uint64_t      off8, val, mem_crb, word[2] = {0, 0};
1464
1465        /*
1466         * If not MN, go check for MS or invalid.
1467         */
1468
1469        if (off >= QLA82XX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX)
1470                mem_crb = QLA82XX_CRB_QDR_NET;
1471        else {
1472                mem_crb = QLA82XX_CRB_DDR_NET;
1473                if (qla82xx_pci_mem_bound_check(ha, off, size) == 0)
1474                        return qla82xx_pci_mem_read_direct(ha,
1475                            off, data, size);
1476        }
1477
1478        off8 = off & 0xfffffff0;
1479        off0[0] = off & 0xf;
1480        sz[0] = (size < (16 - off0[0])) ? size : (16 - off0[0]);
1481        shift_amount = 4;
1482        loop = ((off0[0] + size - 1) >> shift_amount) + 1;
1483        off0[1] = 0;
1484        sz[1] = size - sz[0];
1485
1486        for (i = 0; i < loop; i++) {
1487                temp = off8 + (i << shift_amount);
1488                qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_LO, temp);
1489                temp = 0;
1490                qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_HI, temp);
1491                temp = MIU_TA_CTL_ENABLE;
1492                qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1493                temp = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE;
1494                qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1495
1496                for (j = 0; j < MAX_CTL_CHECK; j++) {
1497                        temp = qla82xx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL);
1498                        if ((temp & MIU_TA_CTL_BUSY) == 0)
1499                                break;
1500                }
1501
1502                if (j >= MAX_CTL_CHECK) {
1503                        if (printk_ratelimit())
1504                                dev_err(&ha->pdev->dev,
1505                                    "failed to read through agent.\n");
1506                        break;
1507                }
1508
1509                start = off0[i] >> 2;
1510                end   = (off0[i] + sz[i] - 1) >> 2;
1511                for (k = start; k <= end; k++) {
1512                        temp = qla82xx_rd_32(ha,
1513                                        mem_crb + MIU_TEST_AGT_RDDATA(k));
1514                        word[i] |= ((uint64_t)temp << (32 * (k & 1)));
1515                }
1516        }
1517
1518        if (j >= MAX_CTL_CHECK)
1519                return -1;
1520
1521        if ((off0[0] & 7) == 0) {
1522                val = word[0];
1523        } else {
1524                val = ((word[0] >> (off0[0] * 8)) & (~(~0ULL << (sz[0] * 8)))) |
1525                        ((word[1] & (~(~0ULL << (sz[1] * 8)))) << (sz[0] * 8));
1526        }
1527
1528        switch (size) {
1529        case 1:
1530                *(uint8_t  *)data = val;
1531                break;
1532        case 2:
1533                *(uint16_t *)data = val;
1534                break;
1535        case 4:
1536                *(uint32_t *)data = val;
1537                break;
1538        case 8:
1539                *(uint64_t *)data = val;
1540                break;
1541        }
1542        return 0;
1543}
1544
1545
1546static struct qla82xx_uri_table_desc *
1547qla82xx_get_table_desc(const u8 *unirom, int section)
1548{
1549        uint32_t i;
1550        struct qla82xx_uri_table_desc *directory =
1551                (struct qla82xx_uri_table_desc *)&unirom[0];
1552        __le32 offset;
1553        __le32 tab_type;
1554        __le32 entries = cpu_to_le32(directory->num_entries);
1555
1556        for (i = 0; i < entries; i++) {
1557                offset = cpu_to_le32(directory->findex) +
1558                    (i * cpu_to_le32(directory->entry_size));
1559                tab_type = cpu_to_le32(*((u32 *)&unirom[offset] + 8));
1560
1561                if (tab_type == section)
1562                        return (struct qla82xx_uri_table_desc *)&unirom[offset];
1563        }
1564
1565        return NULL;
1566}
1567
1568static struct qla82xx_uri_data_desc *
1569qla82xx_get_data_desc(struct qla_hw_data *ha,
1570        u32 section, u32 idx_offset)
1571{
1572        const u8 *unirom = ha->hablob->fw->data;
1573        int idx = cpu_to_le32(*((int *)&unirom[ha->file_prd_off] + idx_offset));
1574        struct qla82xx_uri_table_desc *tab_desc = NULL;
1575        __le32 offset;
1576
1577        tab_desc = qla82xx_get_table_desc(unirom, section);
1578        if (!tab_desc)
1579                return NULL;
1580
1581        offset = cpu_to_le32(tab_desc->findex) +
1582            (cpu_to_le32(tab_desc->entry_size) * idx);
1583
1584        return (struct qla82xx_uri_data_desc *)&unirom[offset];
1585}
1586
1587static u8 *
1588qla82xx_get_bootld_offset(struct qla_hw_data *ha)
1589{
1590        u32 offset = BOOTLD_START;
1591        struct qla82xx_uri_data_desc *uri_desc = NULL;
1592
1593        if (ha->fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
1594                uri_desc = qla82xx_get_data_desc(ha,
1595                    QLA82XX_URI_DIR_SECT_BOOTLD, QLA82XX_URI_BOOTLD_IDX_OFF);
1596                if (uri_desc)
1597                        offset = cpu_to_le32(uri_desc->findex);
1598        }
1599
1600        return (u8 *)&ha->hablob->fw->data[offset];
1601}
1602
1603static __le32
1604qla82xx_get_fw_size(struct qla_hw_data *ha)
1605{
1606        struct qla82xx_uri_data_desc *uri_desc = NULL;
1607
1608        if (ha->fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
1609                uri_desc =  qla82xx_get_data_desc(ha, QLA82XX_URI_DIR_SECT_FW,
1610                    QLA82XX_URI_FIRMWARE_IDX_OFF);
1611                if (uri_desc)
1612                        return cpu_to_le32(uri_desc->size);
1613        }
1614
1615        return cpu_to_le32(*(u32 *)&ha->hablob->fw->data[FW_SIZE_OFFSET]);
1616}
1617
1618static u8 *
1619qla82xx_get_fw_offs(struct qla_hw_data *ha)
1620{
1621        u32 offset = IMAGE_START;
1622        struct qla82xx_uri_data_desc *uri_desc = NULL;
1623
1624        if (ha->fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
1625                uri_desc = qla82xx_get_data_desc(ha, QLA82XX_URI_DIR_SECT_FW,
1626                        QLA82XX_URI_FIRMWARE_IDX_OFF);
1627                if (uri_desc)
1628                        offset = cpu_to_le32(uri_desc->findex);
1629        }
1630
1631        return (u8 *)&ha->hablob->fw->data[offset];
1632}
1633
1634/* PCI related functions */
1635int qla82xx_pci_region_offset(struct pci_dev *pdev, int region)
1636{
1637        unsigned long val = 0;
1638        u32 control;
1639
1640        switch (region) {
1641        case 0:
1642                val = 0;
1643                break;
1644        case 1:
1645                pci_read_config_dword(pdev, QLA82XX_PCI_REG_MSIX_TBL, &control);
1646                val = control + QLA82XX_MSIX_TBL_SPACE;
1647                break;
1648        }
1649        return val;
1650}
1651
1652
1653int
1654qla82xx_iospace_config(struct qla_hw_data *ha)
1655{
1656        uint32_t len = 0;
1657
1658        if (pci_request_regions(ha->pdev, QLA2XXX_DRIVER_NAME)) {
1659                ql_log_pci(ql_log_fatal, ha->pdev, 0x000c,
1660                    "Failed to reserver selected regions.\n");
1661                goto iospace_error_exit;
1662        }
1663
1664        /* Use MMIO operations for all accesses. */
1665        if (!(pci_resource_flags(ha->pdev, 0) & IORESOURCE_MEM)) {
1666                ql_log_pci(ql_log_fatal, ha->pdev, 0x000d,
1667                    "Region #0 not an MMIO resource, aborting.\n");
1668                goto iospace_error_exit;
1669        }
1670
1671        len = pci_resource_len(ha->pdev, 0);
1672        ha->nx_pcibase = ioremap(pci_resource_start(ha->pdev, 0), len);
1673        if (!ha->nx_pcibase) {
1674                ql_log_pci(ql_log_fatal, ha->pdev, 0x000e,
1675                    "Cannot remap pcibase MMIO, aborting.\n");
1676                goto iospace_error_exit;
1677        }
1678
1679        /* Mapping of IO base pointer */
1680        if (IS_QLA8044(ha)) {
1681                ha->iobase = ha->nx_pcibase;
1682        } else if (IS_QLA82XX(ha)) {
1683                ha->iobase = ha->nx_pcibase + 0xbc000 + (ha->pdev->devfn << 11);
1684        }
1685
1686        if (!ql2xdbwr) {
1687                ha->nxdb_wr_ptr = ioremap((pci_resource_start(ha->pdev, 4) +
1688                    (ha->pdev->devfn << 12)), 4);
1689                if (!ha->nxdb_wr_ptr) {
1690                        ql_log_pci(ql_log_fatal, ha->pdev, 0x000f,
1691                            "Cannot remap MMIO, aborting.\n");
1692                        goto iospace_error_exit;
1693                }
1694
1695                /* Mapping of IO base pointer,
1696                 * door bell read and write pointer
1697                 */
1698                ha->nxdb_rd_ptr = ha->nx_pcibase + (512 * 1024) +
1699                    (ha->pdev->devfn * 8);
1700        } else {
1701                ha->nxdb_wr_ptr = (void __iomem *)(ha->pdev->devfn == 6 ?
1702                        QLA82XX_CAMRAM_DB1 :
1703                        QLA82XX_CAMRAM_DB2);
1704        }
1705
1706        ha->max_req_queues = ha->max_rsp_queues = 1;
1707        ha->msix_count = ha->max_rsp_queues + 1;
1708        ql_dbg_pci(ql_dbg_multiq, ha->pdev, 0xc006,
1709            "nx_pci_base=%p iobase=%p "
1710            "max_req_queues=%d msix_count=%d.\n",
1711            ha->nx_pcibase, ha->iobase,
1712            ha->max_req_queues, ha->msix_count);
1713        ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0010,
1714            "nx_pci_base=%p iobase=%p "
1715            "max_req_queues=%d msix_count=%d.\n",
1716            ha->nx_pcibase, ha->iobase,
1717            ha->max_req_queues, ha->msix_count);
1718        return 0;
1719
1720iospace_error_exit:
1721        return -ENOMEM;
1722}
1723
1724/* GS related functions */
1725
1726/* Initialization related functions */
1727
1728/**
1729 * qla82xx_pci_config() - Setup ISP82xx PCI configuration registers.
1730 * @ha: HA context
1731 *
1732 * Returns 0 on success.
1733*/
1734int
1735qla82xx_pci_config(scsi_qla_host_t *vha)
1736{
1737        struct qla_hw_data *ha = vha->hw;
1738        int ret;
1739
1740        pci_set_master(ha->pdev);
1741        ret = pci_set_mwi(ha->pdev);
1742        ha->chip_revision = ha->pdev->revision;
1743        ql_dbg(ql_dbg_init, vha, 0x0043,
1744            "Chip revision:%d; pci_set_mwi() returned %d.\n",
1745            ha->chip_revision, ret);
1746        return 0;
1747}
1748
1749/**
1750 * qla82xx_reset_chip() - Setup ISP82xx PCI configuration registers.
1751 * @ha: HA context
1752 *
1753 * Returns 0 on success.
1754 */
1755void
1756qla82xx_reset_chip(scsi_qla_host_t *vha)
1757{
1758        struct qla_hw_data *ha = vha->hw;
1759        ha->isp_ops->disable_intrs(ha);
1760}
1761
1762void qla82xx_config_rings(struct scsi_qla_host *vha)
1763{
1764        struct qla_hw_data *ha = vha->hw;
1765        struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
1766        struct init_cb_81xx *icb;
1767        struct req_que *req = ha->req_q_map[0];
1768        struct rsp_que *rsp = ha->rsp_q_map[0];
1769
1770        /* Setup ring parameters in initialization control block. */
1771        icb = (struct init_cb_81xx *)ha->init_cb;
1772        icb->request_q_outpointer = cpu_to_le16(0);
1773        icb->response_q_inpointer = cpu_to_le16(0);
1774        icb->request_q_length = cpu_to_le16(req->length);
1775        icb->response_q_length = cpu_to_le16(rsp->length);
1776        icb->request_q_address[0] = cpu_to_le32(LSD(req->dma));
1777        icb->request_q_address[1] = cpu_to_le32(MSD(req->dma));
1778        icb->response_q_address[0] = cpu_to_le32(LSD(rsp->dma));
1779        icb->response_q_address[1] = cpu_to_le32(MSD(rsp->dma));
1780
1781        WRT_REG_DWORD(&reg->req_q_out[0], 0);
1782        WRT_REG_DWORD(&reg->rsp_q_in[0], 0);
1783        WRT_REG_DWORD(&reg->rsp_q_out[0], 0);
1784}
1785
1786static int
1787qla82xx_fw_load_from_blob(struct qla_hw_data *ha)
1788{
1789        u64 *ptr64;
1790        u32 i, flashaddr, size;
1791        __le64 data;
1792
1793        size = (IMAGE_START - BOOTLD_START) / 8;
1794
1795        ptr64 = (u64 *)qla82xx_get_bootld_offset(ha);
1796        flashaddr = BOOTLD_START;
1797
1798        for (i = 0; i < size; i++) {
1799                data = cpu_to_le64(ptr64[i]);
1800                if (qla82xx_pci_mem_write_2M(ha, flashaddr, &data, 8))
1801                        return -EIO;
1802                flashaddr += 8;
1803        }
1804
1805        flashaddr = FLASH_ADDR_START;
1806        size = (__force u32)qla82xx_get_fw_size(ha) / 8;
1807        ptr64 = (u64 *)qla82xx_get_fw_offs(ha);
1808
1809        for (i = 0; i < size; i++) {
1810                data = cpu_to_le64(ptr64[i]);
1811
1812                if (qla82xx_pci_mem_write_2M(ha, flashaddr, &data, 8))
1813                        return -EIO;
1814                flashaddr += 8;
1815        }
1816        udelay(100);
1817
1818        /* Write a magic value to CAMRAM register
1819         * at a specified offset to indicate
1820         * that all data is written and
1821         * ready for firmware to initialize.
1822         */
1823        qla82xx_wr_32(ha, QLA82XX_CAM_RAM(0x1fc), QLA82XX_BDINFO_MAGIC);
1824
1825        read_lock(&ha->hw_lock);
1826        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x18, 0x1020);
1827        qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0x80001e);
1828        read_unlock(&ha->hw_lock);
1829        return 0;
1830}
1831
1832static int
1833qla82xx_set_product_offset(struct qla_hw_data *ha)
1834{
1835        struct qla82xx_uri_table_desc *ptab_desc = NULL;
1836        const uint8_t *unirom = ha->hablob->fw->data;
1837        uint32_t i;
1838        __le32 entries;
1839        __le32 flags, file_chiprev, offset;
1840        uint8_t chiprev = ha->chip_revision;
1841        /* Hardcoding mn_present flag for P3P */
1842        int mn_present = 0;
1843        uint32_t flagbit;
1844
1845        ptab_desc = qla82xx_get_table_desc(unirom,
1846                 QLA82XX_URI_DIR_SECT_PRODUCT_TBL);
1847        if (!ptab_desc)
1848                return -1;
1849
1850        entries = cpu_to_le32(ptab_desc->num_entries);
1851
1852        for (i = 0; i < entries; i++) {
1853                offset = cpu_to_le32(ptab_desc->findex) +
1854                        (i * cpu_to_le32(ptab_desc->entry_size));
1855                flags = cpu_to_le32(*((int *)&unirom[offset] +
1856                        QLA82XX_URI_FLAGS_OFF));
1857                file_chiprev = cpu_to_le32(*((int *)&unirom[offset] +
1858                        QLA82XX_URI_CHIP_REV_OFF));
1859
1860                flagbit = mn_present ? 1 : 2;
1861
1862                if ((chiprev == file_chiprev) && ((1ULL << flagbit) & flags)) {
1863                        ha->file_prd_off = offset;
1864                        return 0;
1865                }
1866        }
1867        return -1;
1868}
1869
1870static int
1871qla82xx_validate_firmware_blob(scsi_qla_host_t *vha, uint8_t fw_type)
1872{
1873        __le32 val;
1874        uint32_t min_size;
1875        struct qla_hw_data *ha = vha->hw;
1876        const struct firmware *fw = ha->hablob->fw;
1877
1878        ha->fw_type = fw_type;
1879
1880        if (fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
1881                if (qla82xx_set_product_offset(ha))
1882                        return -EINVAL;
1883
1884                min_size = QLA82XX_URI_FW_MIN_SIZE;
1885        } else {
1886                val = cpu_to_le32(*(u32 *)&fw->data[QLA82XX_FW_MAGIC_OFFSET]);
1887                if ((__force u32)val != QLA82XX_BDINFO_MAGIC)
1888                        return -EINVAL;
1889
1890                min_size = QLA82XX_FW_MIN_SIZE;
1891        }
1892
1893        if (fw->size < min_size)
1894                return -EINVAL;
1895        return 0;
1896}
1897
1898static int
1899qla82xx_check_cmdpeg_state(struct qla_hw_data *ha)
1900{
1901        u32 val = 0;
1902        int retries = 60;
1903        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1904
1905        do {
1906                read_lock(&ha->hw_lock);
1907                val = qla82xx_rd_32(ha, CRB_CMDPEG_STATE);
1908                read_unlock(&ha->hw_lock);
1909
1910                switch (val) {
1911                case PHAN_INITIALIZE_COMPLETE:
1912                case PHAN_INITIALIZE_ACK:
1913                        return QLA_SUCCESS;
1914                case PHAN_INITIALIZE_FAILED:
1915                        break;
1916                default:
1917                        break;
1918                }
1919                ql_log(ql_log_info, vha, 0x00a8,
1920                    "CRB_CMDPEG_STATE: 0x%x and retries:0x%x.\n",
1921                    val, retries);
1922
1923                msleep(500);
1924
1925        } while (--retries);
1926
1927        ql_log(ql_log_fatal, vha, 0x00a9,
1928            "Cmd Peg initialization failed: 0x%x.\n", val);
1929
1930        val = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_PEGTUNE_DONE);
1931        read_lock(&ha->hw_lock);
1932        qla82xx_wr_32(ha, CRB_CMDPEG_STATE, PHAN_INITIALIZE_FAILED);
1933        read_unlock(&ha->hw_lock);
1934        return QLA_FUNCTION_FAILED;
1935}
1936
1937static int
1938qla82xx_check_rcvpeg_state(struct qla_hw_data *ha)
1939{
1940        u32 val = 0;
1941        int retries = 60;
1942        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1943
1944        do {
1945                read_lock(&ha->hw_lock);
1946                val = qla82xx_rd_32(ha, CRB_RCVPEG_STATE);
1947                read_unlock(&ha->hw_lock);
1948
1949                switch (val) {
1950                case PHAN_INITIALIZE_COMPLETE:
1951                case PHAN_INITIALIZE_ACK:
1952                        return QLA_SUCCESS;
1953                case PHAN_INITIALIZE_FAILED:
1954                        break;
1955                default:
1956                        break;
1957                }
1958                ql_log(ql_log_info, vha, 0x00ab,
1959                    "CRB_RCVPEG_STATE: 0x%x and retries: 0x%x.\n",
1960                    val, retries);
1961
1962                msleep(500);
1963
1964        } while (--retries);
1965
1966        ql_log(ql_log_fatal, vha, 0x00ac,
1967            "Rcv Peg initializatin failed: 0x%x.\n", val);
1968        read_lock(&ha->hw_lock);
1969        qla82xx_wr_32(ha, CRB_RCVPEG_STATE, PHAN_INITIALIZE_FAILED);
1970        read_unlock(&ha->hw_lock);
1971        return QLA_FUNCTION_FAILED;
1972}
1973
1974/* ISR related functions */
1975static struct qla82xx_legacy_intr_set legacy_intr[] = \
1976        QLA82XX_LEGACY_INTR_CONFIG;
1977
1978/*
1979 * qla82xx_mbx_completion() - Process mailbox command completions.
1980 * @ha: SCSI driver HA context
1981 * @mb0: Mailbox0 register
1982 */
1983void
1984qla82xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
1985{
1986        uint16_t        cnt;
1987        uint16_t __iomem *wptr;
1988        struct qla_hw_data *ha = vha->hw;
1989        struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
1990        wptr = (uint16_t __iomem *)&reg->mailbox_out[1];
1991
1992        /* Load return mailbox registers. */
1993        ha->flags.mbox_int = 1;
1994        ha->mailbox_out[0] = mb0;
1995
1996        for (cnt = 1; cnt < ha->mbx_count; cnt++) {
1997                ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
1998                wptr++;
1999        }
2000
2001        if (!ha->mcp)
2002                ql_dbg(ql_dbg_async, vha, 0x5053,
2003                    "MBX pointer ERROR.\n");
2004}
2005
2006/*
2007 * qla82xx_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
2008 * @irq:
2009 * @dev_id: SCSI driver HA context
2010 * @regs:
2011 *
2012 * Called by system whenever the host adapter generates an interrupt.
2013 *
2014 * Returns handled flag.
2015 */
2016irqreturn_t
2017qla82xx_intr_handler(int irq, void *dev_id)
2018{
2019        scsi_qla_host_t *vha;
2020        struct qla_hw_data *ha;
2021        struct rsp_que *rsp;
2022        struct device_reg_82xx __iomem *reg;
2023        int status = 0, status1 = 0;
2024        unsigned long   flags;
2025        unsigned long   iter;
2026        uint32_t        stat = 0;
2027        uint16_t        mb[4];
2028
2029        rsp = (struct rsp_que *) dev_id;
2030        if (!rsp) {
2031                ql_log(ql_log_info, NULL, 0xb053,
2032                    "%s: NULL response queue pointer.\n", __func__);
2033                return IRQ_NONE;
2034        }
2035        ha = rsp->hw;
2036
2037        if (!ha->flags.msi_enabled) {
2038                status = qla82xx_rd_32(ha, ISR_INT_VECTOR);
2039                if (!(status & ha->nx_legacy_intr.int_vec_bit))
2040                        return IRQ_NONE;
2041
2042                status1 = qla82xx_rd_32(ha, ISR_INT_STATE_REG);
2043                if (!ISR_IS_LEGACY_INTR_TRIGGERED(status1))
2044                        return IRQ_NONE;
2045        }
2046
2047        /* clear the interrupt */
2048        qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_status_reg, 0xffffffff);
2049
2050        /* read twice to ensure write is flushed */
2051        qla82xx_rd_32(ha, ISR_INT_VECTOR);
2052        qla82xx_rd_32(ha, ISR_INT_VECTOR);
2053
2054        reg = &ha->iobase->isp82;
2055
2056        spin_lock_irqsave(&ha->hardware_lock, flags);
2057        vha = pci_get_drvdata(ha->pdev);
2058        for (iter = 1; iter--; ) {
2059
2060                if (RD_REG_DWORD(&reg->host_int)) {
2061                        stat = RD_REG_DWORD(&reg->host_status);
2062
2063                        switch (stat & 0xff) {
2064                        case 0x1:
2065                        case 0x2:
2066                        case 0x10:
2067                        case 0x11:
2068                                qla82xx_mbx_completion(vha, MSW(stat));
2069                                status |= MBX_INTERRUPT;
2070                                break;
2071                        case 0x12:
2072                                mb[0] = MSW(stat);
2073                                mb[1] = RD_REG_WORD(&reg->mailbox_out[1]);
2074                                mb[2] = RD_REG_WORD(&reg->mailbox_out[2]);
2075                                mb[3] = RD_REG_WORD(&reg->mailbox_out[3]);
2076                                qla2x00_async_event(vha, rsp, mb);
2077                                break;
2078                        case 0x13:
2079                                qla24xx_process_response_queue(vha, rsp);
2080                                break;
2081                        default:
2082                                ql_dbg(ql_dbg_async, vha, 0x5054,
2083                                    "Unrecognized interrupt type (%d).\n",
2084                                    stat & 0xff);
2085                                break;
2086                        }
2087                }
2088                WRT_REG_DWORD(&reg->host_int, 0);
2089        }
2090
2091        qla2x00_handle_mbx_completion(ha, status);
2092        spin_unlock_irqrestore(&ha->hardware_lock, flags);
2093
2094        if (!ha->flags.msi_enabled)
2095                qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0xfbff);
2096
2097        return IRQ_HANDLED;
2098}
2099
2100irqreturn_t
2101qla82xx_msix_default(int irq, void *dev_id)
2102{
2103        scsi_qla_host_t *vha;
2104        struct qla_hw_data *ha;
2105        struct rsp_que *rsp;
2106        struct device_reg_82xx __iomem *reg;
2107        int status = 0;
2108        unsigned long flags;
2109        uint32_t stat = 0;
2110        uint32_t host_int = 0;
2111        uint16_t mb[4];
2112
2113        rsp = (struct rsp_que *) dev_id;
2114        if (!rsp) {
2115                printk(KERN_INFO
2116                        "%s(): NULL response queue pointer.\n", __func__);
2117                return IRQ_NONE;
2118        }
2119        ha = rsp->hw;
2120
2121        reg = &ha->iobase->isp82;
2122
2123        spin_lock_irqsave(&ha->hardware_lock, flags);
2124        vha = pci_get_drvdata(ha->pdev);
2125        do {
2126                host_int = RD_REG_DWORD(&reg->host_int);
2127                if (qla2x00_check_reg32_for_disconnect(vha, host_int))
2128                        break;
2129                if (host_int) {
2130                        stat = RD_REG_DWORD(&reg->host_status);
2131
2132                        switch (stat & 0xff) {
2133                        case 0x1:
2134                        case 0x2:
2135                        case 0x10:
2136                        case 0x11:
2137                                qla82xx_mbx_completion(vha, MSW(stat));
2138                                status |= MBX_INTERRUPT;
2139                                break;
2140                        case 0x12:
2141                                mb[0] = MSW(stat);
2142                                mb[1] = RD_REG_WORD(&reg->mailbox_out[1]);
2143                                mb[2] = RD_REG_WORD(&reg->mailbox_out[2]);
2144                                mb[3] = RD_REG_WORD(&reg->mailbox_out[3]);
2145                                qla2x00_async_event(vha, rsp, mb);
2146                                break;
2147                        case 0x13:
2148                                qla24xx_process_response_queue(vha, rsp);
2149                                break;
2150                        default:
2151                                ql_dbg(ql_dbg_async, vha, 0x5041,
2152                                    "Unrecognized interrupt type (%d).\n",
2153                                    stat & 0xff);
2154                                break;
2155                        }
2156                }
2157                WRT_REG_DWORD(&reg->host_int, 0);
2158        } while (0);
2159
2160        qla2x00_handle_mbx_completion(ha, status);
2161        spin_unlock_irqrestore(&ha->hardware_lock, flags);
2162
2163        return IRQ_HANDLED;
2164}
2165
2166irqreturn_t
2167qla82xx_msix_rsp_q(int irq, void *dev_id)
2168{
2169        scsi_qla_host_t *vha;
2170        struct qla_hw_data *ha;
2171        struct rsp_que *rsp;
2172        struct device_reg_82xx __iomem *reg;
2173        unsigned long flags;
2174        uint32_t host_int = 0;
2175
2176        rsp = (struct rsp_que *) dev_id;
2177        if (!rsp) {
2178                printk(KERN_INFO
2179                        "%s(): NULL response queue pointer.\n", __func__);
2180                return IRQ_NONE;
2181        }
2182
2183        ha = rsp->hw;
2184        reg = &ha->iobase->isp82;
2185        spin_lock_irqsave(&ha->hardware_lock, flags);
2186        vha = pci_get_drvdata(ha->pdev);
2187        host_int = RD_REG_DWORD(&reg->host_int);
2188        if (qla2x00_check_reg32_for_disconnect(vha, host_int))
2189                goto out;
2190        qla24xx_process_response_queue(vha, rsp);
2191        WRT_REG_DWORD(&reg->host_int, 0);
2192out:
2193        spin_unlock_irqrestore(&ha->hardware_lock, flags);
2194        return IRQ_HANDLED;
2195}
2196
2197void
2198qla82xx_poll(int irq, void *dev_id)
2199{
2200        scsi_qla_host_t *vha;
2201        struct qla_hw_data *ha;
2202        struct rsp_que *rsp;
2203        struct device_reg_82xx __iomem *reg;
2204        int status = 0;
2205        uint32_t stat;
2206        uint32_t host_int = 0;
2207        uint16_t mb[4];
2208        unsigned long flags;
2209
2210        rsp = (struct rsp_que *) dev_id;
2211        if (!rsp) {
2212                printk(KERN_INFO
2213                        "%s(): NULL response queue pointer.\n", __func__);
2214                return;
2215        }
2216        ha = rsp->hw;
2217
2218        reg = &ha->iobase->isp82;
2219        spin_lock_irqsave(&ha->hardware_lock, flags);
2220        vha = pci_get_drvdata(ha->pdev);
2221
2222        host_int = RD_REG_DWORD(&reg->host_int);
2223        if (qla2x00_check_reg32_for_disconnect(vha, host_int))
2224                goto out;
2225        if (host_int) {
2226                stat = RD_REG_DWORD(&reg->host_status);
2227                switch (stat & 0xff) {
2228                case 0x1:
2229                case 0x2:
2230                case 0x10:
2231                case 0x11:
2232                        qla82xx_mbx_completion(vha, MSW(stat));
2233                        status |= MBX_INTERRUPT;
2234                        break;
2235                case 0x12:
2236                        mb[0] = MSW(stat);
2237                        mb[1] = RD_REG_WORD(&reg->mailbox_out[1]);
2238                        mb[2] = RD_REG_WORD(&reg->mailbox_out[2]);
2239                        mb[3] = RD_REG_WORD(&reg->mailbox_out[3]);
2240                        qla2x00_async_event(vha, rsp, mb);
2241                        break;
2242                case 0x13:
2243                        qla24xx_process_response_queue(vha, rsp);
2244                        break;
2245                default:
2246                        ql_dbg(ql_dbg_p3p, vha, 0xb013,
2247                            "Unrecognized interrupt type (%d).\n",
2248                            stat * 0xff);
2249                        break;
2250                }
2251                WRT_REG_DWORD(&reg->host_int, 0);
2252        }
2253out:
2254        spin_unlock_irqrestore(&ha->hardware_lock, flags);
2255}
2256
2257void
2258qla82xx_enable_intrs(struct qla_hw_data *ha)
2259{
2260        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2261        qla82xx_mbx_intr_enable(vha);
2262        spin_lock_irq(&ha->hardware_lock);
2263        if (IS_QLA8044(ha))
2264                qla8044_wr_reg(ha, LEG_INTR_MASK_OFFSET, 0);
2265        else
2266                qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0xfbff);
2267        spin_unlock_irq(&ha->hardware_lock);
2268        ha->interrupts_on = 1;
2269}
2270
2271void
2272qla82xx_disable_intrs(struct qla_hw_data *ha)
2273{
2274        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2275        qla82xx_mbx_intr_disable(vha);
2276        spin_lock_irq(&ha->hardware_lock);
2277        if (IS_QLA8044(ha))
2278                qla8044_wr_reg(ha, LEG_INTR_MASK_OFFSET, 1);
2279        else
2280                qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0x0400);
2281        spin_unlock_irq(&ha->hardware_lock);
2282        ha->interrupts_on = 0;
2283}
2284
2285void qla82xx_init_flags(struct qla_hw_data *ha)
2286{
2287        struct qla82xx_legacy_intr_set *nx_legacy_intr;
2288
2289        /* ISP 8021 initializations */
2290        rwlock_init(&ha->hw_lock);
2291        ha->qdr_sn_window = -1;
2292        ha->ddr_mn_window = -1;
2293        ha->curr_window = 255;
2294        ha->portnum = PCI_FUNC(ha->pdev->devfn);
2295        nx_legacy_intr = &legacy_intr[ha->portnum];
2296        ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit;
2297        ha->nx_legacy_intr.tgt_status_reg = nx_legacy_intr->tgt_status_reg;
2298        ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg;
2299        ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg;
2300}
2301
2302static inline void
2303qla82xx_set_idc_version(scsi_qla_host_t *vha)
2304{
2305        int idc_ver;
2306        uint32_t drv_active;
2307        struct qla_hw_data *ha = vha->hw;
2308
2309        drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2310        if (drv_active == (QLA82XX_DRV_ACTIVE << (ha->portnum * 4))) {
2311                qla82xx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION,
2312                    QLA82XX_IDC_VERSION);
2313                ql_log(ql_log_info, vha, 0xb082,
2314                    "IDC version updated to %d\n", QLA82XX_IDC_VERSION);
2315        } else {
2316                idc_ver = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_IDC_VERSION);
2317                if (idc_ver != QLA82XX_IDC_VERSION)
2318                        ql_log(ql_log_info, vha, 0xb083,
2319                            "qla2xxx driver IDC version %d is not compatible "
2320                            "with IDC version %d of the other drivers\n",
2321                            QLA82XX_IDC_VERSION, idc_ver);
2322        }
2323}
2324
2325inline void
2326qla82xx_set_drv_active(scsi_qla_host_t *vha)
2327{
2328        uint32_t drv_active;
2329        struct qla_hw_data *ha = vha->hw;
2330
2331        drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2332
2333        /* If reset value is all FF's, initialize DRV_ACTIVE */
2334        if (drv_active == 0xffffffff) {
2335                qla82xx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE,
2336                        QLA82XX_DRV_NOT_ACTIVE);
2337                drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2338        }
2339        drv_active |= (QLA82XX_DRV_ACTIVE << (ha->portnum * 4));
2340        qla82xx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE, drv_active);
2341}
2342
2343inline void
2344qla82xx_clear_drv_active(struct qla_hw_data *ha)
2345{
2346        uint32_t drv_active;
2347
2348        drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2349        drv_active &= ~(QLA82XX_DRV_ACTIVE << (ha->portnum * 4));
2350        qla82xx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE, drv_active);
2351}
2352
2353static inline int
2354qla82xx_need_reset(struct qla_hw_data *ha)
2355{
2356        uint32_t drv_state;
2357        int rval;
2358
2359        if (ha->flags.nic_core_reset_owner)
2360                return 1;
2361        else {
2362                drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2363                rval = drv_state & (QLA82XX_DRVST_RST_RDY << (ha->portnum * 4));
2364                return rval;
2365        }
2366}
2367
2368static inline void
2369qla82xx_set_rst_ready(struct qla_hw_data *ha)
2370{
2371        uint32_t drv_state;
2372        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2373
2374        drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2375
2376        /* If reset value is all FF's, initialize DRV_STATE */
2377        if (drv_state == 0xffffffff) {
2378                qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, QLA82XX_DRVST_NOT_RDY);
2379                drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2380        }
2381        drv_state |= (QLA82XX_DRVST_RST_RDY << (ha->portnum * 4));
2382        ql_dbg(ql_dbg_init, vha, 0x00bb,
2383            "drv_state = 0x%08x.\n", drv_state);
2384        qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, drv_state);
2385}
2386
2387static inline void
2388qla82xx_clear_rst_ready(struct qla_hw_data *ha)
2389{
2390        uint32_t drv_state;
2391
2392        drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2393        drv_state &= ~(QLA82XX_DRVST_RST_RDY << (ha->portnum * 4));
2394        qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, drv_state);
2395}
2396
2397static inline void
2398qla82xx_set_qsnt_ready(struct qla_hw_data *ha)
2399{
2400        uint32_t qsnt_state;
2401
2402        qsnt_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2403        qsnt_state |= (QLA82XX_DRVST_QSNT_RDY << (ha->portnum * 4));
2404        qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, qsnt_state);
2405}
2406
2407void
2408qla82xx_clear_qsnt_ready(scsi_qla_host_t *vha)
2409{
2410        struct qla_hw_data *ha = vha->hw;
2411        uint32_t qsnt_state;
2412
2413        qsnt_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2414        qsnt_state &= ~(QLA82XX_DRVST_QSNT_RDY << (ha->portnum * 4));
2415        qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, qsnt_state);
2416}
2417
2418static int
2419qla82xx_load_fw(scsi_qla_host_t *vha)
2420{
2421        int rst;
2422        struct fw_blob *blob;
2423        struct qla_hw_data *ha = vha->hw;
2424
2425        if (qla82xx_pinit_from_rom(vha) != QLA_SUCCESS) {
2426                ql_log(ql_log_fatal, vha, 0x009f,
2427                    "Error during CRB initialization.\n");
2428                return QLA_FUNCTION_FAILED;
2429        }
2430        udelay(500);
2431
2432        /* Bring QM and CAMRAM out of reset */
2433        rst = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET);
2434        rst &= ~((1 << 28) | (1 << 24));
2435        qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, rst);
2436
2437        /*
2438         * FW Load priority:
2439         * 1) Operational firmware residing in flash.
2440         * 2) Firmware via request-firmware interface (.bin file).
2441         */
2442        if (ql2xfwloadbin == 2)
2443                goto try_blob_fw;
2444
2445        ql_log(ql_log_info, vha, 0x00a0,
2446            "Attempting to load firmware from flash.\n");
2447
2448        if (qla82xx_fw_load_from_flash(ha) == QLA_SUCCESS) {
2449                ql_log(ql_log_info, vha, 0x00a1,
2450                    "Firmware loaded successfully from flash.\n");
2451                return QLA_SUCCESS;
2452        } else {
2453                ql_log(ql_log_warn, vha, 0x0108,
2454                    "Firmware load from flash failed.\n");
2455        }
2456
2457try_blob_fw:
2458        ql_log(ql_log_info, vha, 0x00a2,
2459            "Attempting to load firmware from blob.\n");
2460
2461        /* Load firmware blob. */
2462        blob = ha->hablob = qla2x00_request_firmware(vha);
2463        if (!blob) {
2464                ql_log(ql_log_fatal, vha, 0x00a3,
2465                    "Firmware image not present.\n");
2466                goto fw_load_failed;
2467        }
2468
2469        /* Validating firmware blob */
2470        if (qla82xx_validate_firmware_blob(vha,
2471                QLA82XX_FLASH_ROMIMAGE)) {
2472                /* Fallback to URI format */
2473                if (qla82xx_validate_firmware_blob(vha,
2474                        QLA82XX_UNIFIED_ROMIMAGE)) {
2475                        ql_log(ql_log_fatal, vha, 0x00a4,
2476                            "No valid firmware image found.\n");
2477                        return QLA_FUNCTION_FAILED;
2478                }
2479        }
2480
2481        if (qla82xx_fw_load_from_blob(ha) == QLA_SUCCESS) {
2482                ql_log(ql_log_info, vha, 0x00a5,
2483                    "Firmware loaded successfully from binary blob.\n");
2484                return QLA_SUCCESS;
2485        }
2486
2487        ql_log(ql_log_fatal, vha, 0x00a6,
2488               "Firmware load failed for binary blob.\n");
2489        blob->fw = NULL;
2490        blob = NULL;
2491
2492fw_load_failed:
2493        return QLA_FUNCTION_FAILED;
2494}
2495
2496int
2497qla82xx_start_firmware(scsi_qla_host_t *vha)
2498{
2499        uint16_t      lnk;
2500        struct qla_hw_data *ha = vha->hw;
2501
2502        /* scrub dma mask expansion register */
2503        qla82xx_wr_32(ha, CRB_DMA_SHIFT, QLA82XX_DMA_SHIFT_VALUE);
2504
2505        /* Put both the PEG CMD and RCV PEG to default state
2506         * of 0 before resetting the hardware
2507         */
2508        qla82xx_wr_32(ha, CRB_CMDPEG_STATE, 0);
2509        qla82xx_wr_32(ha, CRB_RCVPEG_STATE, 0);
2510
2511        /* Overwrite stale initialization register values */
2512        qla82xx_wr_32(ha, QLA82XX_PEG_HALT_STATUS1, 0);
2513        qla82xx_wr_32(ha, QLA82XX_PEG_HALT_STATUS2, 0);
2514
2515        if (qla82xx_load_fw(vha) != QLA_SUCCESS) {
2516                ql_log(ql_log_fatal, vha, 0x00a7,
2517                    "Error trying to start fw.\n");
2518                return QLA_FUNCTION_FAILED;
2519        }
2520
2521        /* Handshake with the card before we register the devices. */
2522        if (qla82xx_check_cmdpeg_state(ha) != QLA_SUCCESS) {
2523                ql_log(ql_log_fatal, vha, 0x00aa,
2524                    "Error during card handshake.\n");
2525                return QLA_FUNCTION_FAILED;
2526        }
2527
2528        /* Negotiated Link width */
2529        pcie_capability_read_word(ha->pdev, PCI_EXP_LNKSTA, &lnk);
2530        ha->link_width = (lnk >> 4) & 0x3f;
2531
2532        /* Synchronize with Receive peg */
2533        return qla82xx_check_rcvpeg_state(ha);
2534}
2535
2536static uint32_t *
2537qla82xx_read_flash_data(scsi_qla_host_t *vha, uint32_t *dwptr, uint32_t faddr,
2538        uint32_t length)
2539{
2540        uint32_t i;
2541        uint32_t val;
2542        struct qla_hw_data *ha = vha->hw;
2543
2544        /* Dword reads to flash. */
2545        for (i = 0; i < length/4; i++, faddr += 4) {
2546                if (qla82xx_rom_fast_read(ha, faddr, &val)) {
2547                        ql_log(ql_log_warn, vha, 0x0106,
2548                            "Do ROM fast read failed.\n");
2549                        goto done_read;
2550                }
2551                dwptr[i] = cpu_to_le32(val);
2552        }
2553done_read:
2554        return dwptr;
2555}
2556
2557static int
2558qla82xx_unprotect_flash(struct qla_hw_data *ha)
2559{
2560        int ret;
2561        uint32_t val;
2562        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2563
2564        ret = ql82xx_rom_lock_d(ha);
2565        if (ret < 0) {
2566                ql_log(ql_log_warn, vha, 0xb014,
2567                    "ROM Lock failed.\n");
2568                return ret;
2569        }
2570
2571        ret = qla82xx_read_status_reg(ha, &val);
2572        if (ret < 0)
2573                goto done_unprotect;
2574
2575        val &= ~(BLOCK_PROTECT_BITS << 2);
2576        ret = qla82xx_write_status_reg(ha, val);
2577        if (ret < 0) {
2578                val |= (BLOCK_PROTECT_BITS << 2);
2579                qla82xx_write_status_reg(ha, val);
2580        }
2581
2582        if (qla82xx_write_disable_flash(ha) != 0)
2583                ql_log(ql_log_warn, vha, 0xb015,
2584                    "Write disable failed.\n");
2585
2586done_unprotect:
2587        qla82xx_rom_unlock(ha);
2588        return ret;
2589}
2590
2591static int
2592qla82xx_protect_flash(struct qla_hw_data *ha)
2593{
2594        int ret;
2595        uint32_t val;
2596        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2597
2598        ret = ql82xx_rom_lock_d(ha);
2599        if (ret < 0) {
2600                ql_log(ql_log_warn, vha, 0xb016,
2601                    "ROM Lock failed.\n");
2602                return ret;
2603        }
2604
2605        ret = qla82xx_read_status_reg(ha, &val);
2606        if (ret < 0)
2607                goto done_protect;
2608
2609        val |= (BLOCK_PROTECT_BITS << 2);
2610        /* LOCK all sectors */
2611        ret = qla82xx_write_status_reg(ha, val);
2612        if (ret < 0)
2613                ql_log(ql_log_warn, vha, 0xb017,
2614                    "Write status register failed.\n");
2615
2616        if (qla82xx_write_disable_flash(ha) != 0)
2617                ql_log(ql_log_warn, vha, 0xb018,
2618                    "Write disable failed.\n");
2619done_protect:
2620        qla82xx_rom_unlock(ha);
2621        return ret;
2622}
2623
2624static int
2625qla82xx_erase_sector(struct qla_hw_data *ha, int addr)
2626{
2627        int ret = 0;
2628        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2629
2630        ret = ql82xx_rom_lock_d(ha);
2631        if (ret < 0) {
2632                ql_log(ql_log_warn, vha, 0xb019,
2633                    "ROM Lock failed.\n");
2634                return ret;
2635        }
2636
2637        qla82xx_flash_set_write_enable(ha);
2638        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ADDRESS, addr);
2639        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 3);
2640        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_SE);
2641
2642        if (qla82xx_wait_rom_done(ha)) {
2643                ql_log(ql_log_warn, vha, 0xb01a,
2644                    "Error waiting for rom done.\n");
2645                ret = -1;
2646                goto done;
2647        }
2648        ret = qla82xx_flash_wait_write_finish(ha);
2649done:
2650        qla82xx_rom_unlock(ha);
2651        return ret;
2652}
2653
2654/*
2655 * Address and length are byte address
2656 */
2657uint8_t *
2658qla82xx_read_optrom_data(struct scsi_qla_host *vha, uint8_t *buf,
2659        uint32_t offset, uint32_t length)
2660{
2661        scsi_block_requests(vha->host);
2662        qla82xx_read_flash_data(vha, (uint32_t *)buf, offset, length);
2663        scsi_unblock_requests(vha->host);
2664        return buf;
2665}
2666
2667static int
2668qla82xx_write_flash_data(struct scsi_qla_host *vha, uint32_t *dwptr,
2669        uint32_t faddr, uint32_t dwords)
2670{
2671        int ret;
2672        uint32_t liter;
2673        uint32_t rest_addr;
2674        dma_addr_t optrom_dma;
2675        void *optrom = NULL;
2676        int page_mode = 0;
2677        struct qla_hw_data *ha = vha->hw;
2678
2679        ret = -1;
2680
2681        /* Prepare burst-capable write on supported ISPs. */
2682        if (page_mode && !(faddr & 0xfff) &&
2683            dwords > OPTROM_BURST_DWORDS) {
2684                optrom = dma_alloc_coherent(&ha->pdev->dev, OPTROM_BURST_SIZE,
2685                    &optrom_dma, GFP_KERNEL);
2686                if (!optrom) {
2687                        ql_log(ql_log_warn, vha, 0xb01b,
2688                            "Unable to allocate memory "
2689                            "for optrom burst write (%x KB).\n",
2690                            OPTROM_BURST_SIZE / 1024);
2691                }
2692        }
2693
2694        rest_addr = ha->fdt_block_size - 1;
2695
2696        ret = qla82xx_unprotect_flash(ha);
2697        if (ret) {
2698                ql_log(ql_log_warn, vha, 0xb01c,
2699                    "Unable to unprotect flash for update.\n");
2700                goto write_done;
2701        }
2702
2703        for (liter = 0; liter < dwords; liter++, faddr += 4, dwptr++) {
2704                /* Are we at the beginning of a sector? */
2705                if ((faddr & rest_addr) == 0) {
2706
2707                        ret = qla82xx_erase_sector(ha, faddr);
2708                        if (ret) {
2709                                ql_log(ql_log_warn, vha, 0xb01d,
2710                                    "Unable to erase sector: address=%x.\n",
2711                                    faddr);
2712                                break;
2713                        }
2714                }
2715
2716                /* Go with burst-write. */
2717                if (optrom && (liter + OPTROM_BURST_DWORDS) <= dwords) {
2718                        /* Copy data to DMA'ble buffer. */
2719                        memcpy(optrom, dwptr, OPTROM_BURST_SIZE);
2720
2721                        ret = qla2x00_load_ram(vha, optrom_dma,
2722                            (ha->flash_data_off | faddr),
2723                            OPTROM_BURST_DWORDS);
2724                        if (ret != QLA_SUCCESS) {
2725                                ql_log(ql_log_warn, vha, 0xb01e,
2726                                    "Unable to burst-write optrom segment "
2727                                    "(%x/%x/%llx).\n", ret,
2728                                    (ha->flash_data_off | faddr),
2729                                    (unsigned long long)optrom_dma);
2730                                ql_log(ql_log_warn, vha, 0xb01f,
2731                                    "Reverting to slow-write.\n");
2732
2733                                dma_free_coherent(&ha->pdev->dev,
2734                                    OPTROM_BURST_SIZE, optrom, optrom_dma);
2735                                optrom = NULL;
2736                        } else {
2737                                liter += OPTROM_BURST_DWORDS - 1;
2738                                faddr += OPTROM_BURST_DWORDS - 1;
2739                                dwptr += OPTROM_BURST_DWORDS - 1;
2740                                continue;
2741                        }
2742                }
2743
2744                ret = qla82xx_write_flash_dword(ha, faddr,
2745                    cpu_to_le32(*dwptr));
2746                if (ret) {
2747                        ql_dbg(ql_dbg_p3p, vha, 0xb020,
2748                            "Unable to program flash address=%x data=%x.\n",
2749                            faddr, *dwptr);
2750                        break;
2751                }
2752        }
2753
2754        ret = qla82xx_protect_flash(ha);
2755        if (ret)
2756                ql_log(ql_log_warn, vha, 0xb021,
2757                    "Unable to protect flash after update.\n");
2758write_done:
2759        if (optrom)
2760                dma_free_coherent(&ha->pdev->dev,
2761                    OPTROM_BURST_SIZE, optrom, optrom_dma);
2762        return ret;
2763}
2764
2765int
2766qla82xx_write_optrom_data(struct scsi_qla_host *vha, uint8_t *buf,
2767        uint32_t offset, uint32_t length)
2768{
2769        int rval;
2770
2771        /* Suspend HBA. */
2772        scsi_block_requests(vha->host);
2773        rval = qla82xx_write_flash_data(vha, (uint32_t *)buf, offset,
2774                length >> 2);
2775        scsi_unblock_requests(vha->host);
2776
2777        /* Convert return ISP82xx to generic */
2778        if (rval)
2779                rval = QLA_FUNCTION_FAILED;
2780        else
2781                rval = QLA_SUCCESS;
2782        return rval;
2783}
2784
2785void
2786qla82xx_start_iocbs(scsi_qla_host_t *vha)
2787{
2788        struct qla_hw_data *ha = vha->hw;
2789        struct req_que *req = ha->req_q_map[0];
2790        uint32_t dbval;
2791
2792        /* Adjust ring index. */
2793        req->ring_index++;
2794        if (req->ring_index == req->length) {
2795                req->ring_index = 0;
2796                req->ring_ptr = req->ring;
2797        } else
2798                req->ring_ptr++;
2799
2800        dbval = 0x04 | (ha->portnum << 5);
2801
2802        dbval = dbval | (req->id << 8) | (req->ring_index << 16);
2803        if (ql2xdbwr)
2804                qla82xx_wr_32(ha, (unsigned long)ha->nxdb_wr_ptr, dbval);
2805        else {
2806                WRT_REG_DWORD(ha->nxdb_wr_ptr, dbval);
2807                wmb();
2808                while (RD_REG_DWORD(ha->nxdb_rd_ptr) != dbval) {
2809                        WRT_REG_DWORD(ha->nxdb_wr_ptr, dbval);
2810                        wmb();
2811                }
2812        }
2813}
2814
2815static void
2816qla82xx_rom_lock_recovery(struct qla_hw_data *ha)
2817{
2818        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2819        uint32_t lock_owner = 0;
2820
2821        if (qla82xx_rom_lock(ha)) {
2822                lock_owner = qla82xx_rd_32(ha, QLA82XX_ROM_LOCK_ID);
2823                /* Someone else is holding the lock. */
2824                ql_log(ql_log_info, vha, 0xb022,
2825                    "Resetting rom_lock, Lock Owner %u.\n", lock_owner);
2826        }
2827        /*
2828         * Either we got the lock, or someone
2829         * else died while holding it.
2830         * In either case, unlock.
2831         */
2832        qla82xx_rom_unlock(ha);
2833}
2834
2835/*
2836 * qla82xx_device_bootstrap
2837 *    Initialize device, set DEV_READY, start fw
2838 *
2839 * Note:
2840 *      IDC lock must be held upon entry
2841 *
2842 * Return:
2843 *    Success : 0
2844 *    Failed  : 1
2845 */
2846static int
2847qla82xx_device_bootstrap(scsi_qla_host_t *vha)
2848{
2849        int rval = QLA_SUCCESS;
2850        int i;
2851        uint32_t old_count, count;
2852        struct qla_hw_data *ha = vha->hw;
2853        int need_reset = 0;
2854
2855        need_reset = qla82xx_need_reset(ha);
2856
2857        if (need_reset) {
2858                /* We are trying to perform a recovery here. */
2859                if (ha->flags.isp82xx_fw_hung)
2860                        qla82xx_rom_lock_recovery(ha);
2861        } else  {
2862                old_count = qla82xx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER);
2863                for (i = 0; i < 10; i++) {
2864                        msleep(200);
2865                        count = qla82xx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER);
2866                        if (count != old_count) {
2867                                rval = QLA_SUCCESS;
2868                                goto dev_ready;
2869                        }
2870                }
2871                qla82xx_rom_lock_recovery(ha);
2872        }
2873
2874        /* set to DEV_INITIALIZING */
2875        ql_log(ql_log_info, vha, 0x009e,
2876            "HW State: INITIALIZING.\n");
2877        qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_INITIALIZING);
2878
2879        qla82xx_idc_unlock(ha);
2880        rval = qla82xx_start_firmware(vha);
2881        qla82xx_idc_lock(ha);
2882
2883        if (rval != QLA_SUCCESS) {
2884                ql_log(ql_log_fatal, vha, 0x00ad,
2885                    "HW State: FAILED.\n");
2886                qla82xx_clear_drv_active(ha);
2887                qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_FAILED);
2888                return rval;
2889        }
2890
2891dev_ready:
2892        ql_log(ql_log_info, vha, 0x00ae,
2893            "HW State: READY.\n");
2894        qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_READY);
2895
2896        return QLA_SUCCESS;
2897}
2898
2899/*
2900* qla82xx_need_qsnt_handler
2901*    Code to start quiescence sequence
2902*
2903* Note:
2904*      IDC lock must be held upon entry
2905*
2906* Return: void
2907*/
2908
2909static void
2910qla82xx_need_qsnt_handler(scsi_qla_host_t *vha)
2911{
2912        struct qla_hw_data *ha = vha->hw;
2913        uint32_t dev_state, drv_state, drv_active;
2914        unsigned long reset_timeout;
2915
2916        if (vha->flags.online) {
2917                /*Block any further I/O and wait for pending cmnds to complete*/
2918                qla2x00_quiesce_io(vha);
2919        }
2920
2921        /* Set the quiescence ready bit */
2922        qla82xx_set_qsnt_ready(ha);
2923
2924        /*wait for 30 secs for other functions to ack */
2925        reset_timeout = jiffies + (30 * HZ);
2926
2927        drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2928        drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2929        /* Its 2 that is written when qsnt is acked, moving one bit */
2930        drv_active = drv_active << 0x01;
2931
2932        while (drv_state != drv_active) {
2933
2934                if (time_after_eq(jiffies, reset_timeout)) {
2935                        /* quiescence timeout, other functions didn't ack
2936                         * changing the state to DEV_READY
2937                         */
2938                        ql_log(ql_log_info, vha, 0xb023,
2939                            "%s : QUIESCENT TIMEOUT DRV_ACTIVE:%d "
2940                            "DRV_STATE:%d.\n", QLA2XXX_DRIVER_NAME,
2941                            drv_active, drv_state);
2942                        qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
2943                            QLA8XXX_DEV_READY);
2944                        ql_log(ql_log_info, vha, 0xb025,
2945                            "HW State: DEV_READY.\n");
2946                        qla82xx_idc_unlock(ha);
2947                        qla2x00_perform_loop_resync(vha);
2948                        qla82xx_idc_lock(ha);
2949
2950                        qla82xx_clear_qsnt_ready(vha);
2951                        return;
2952                }
2953
2954                qla82xx_idc_unlock(ha);
2955                msleep(1000);
2956                qla82xx_idc_lock(ha);
2957
2958                drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2959                drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2960                drv_active = drv_active << 0x01;
2961        }
2962        dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
2963        /* everyone acked so set the state to DEV_QUIESCENCE */
2964        if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT) {
2965                ql_log(ql_log_info, vha, 0xb026,
2966                    "HW State: DEV_QUIESCENT.\n");
2967                qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_QUIESCENT);
2968        }
2969}
2970
2971/*
2972* qla82xx_wait_for_state_change
2973*    Wait for device state to change from given current state
2974*
2975* Note:
2976*     IDC lock must not be held upon entry
2977*
2978* Return:
2979*    Changed device state.
2980*/
2981uint32_t
2982qla82xx_wait_for_state_change(scsi_qla_host_t *vha, uint32_t curr_state)
2983{
2984        struct qla_hw_data *ha = vha->hw;
2985        uint32_t dev_state;
2986
2987        do {
2988                msleep(1000);
2989                qla82xx_idc_lock(ha);
2990                dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
2991                qla82xx_idc_unlock(ha);
2992        } while (dev_state == curr_state);
2993
2994        return dev_state;
2995}
2996
2997void
2998qla8xxx_dev_failed_handler(scsi_qla_host_t *vha)
2999{
3000        struct qla_hw_data *ha = vha->hw;
3001
3002        /* Disable the board */
3003        ql_log(ql_log_fatal, vha, 0x00b8,
3004            "Disabling the board.\n");
3005
3006        if (IS_QLA82XX(ha)) {
3007                qla82xx_clear_drv_active(ha);
3008                qla82xx_idc_unlock(ha);
3009        } else if (IS_QLA8044(ha)) {
3010                qla8044_clear_drv_active(ha);
3011                qla8044_idc_unlock(ha);
3012        }
3013
3014        /* Set DEV_FAILED flag to disable timer */
3015        vha->device_flags |= DFLG_DEV_FAILED;
3016        qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
3017        qla2x00_mark_all_devices_lost(vha, 0);
3018        vha->flags.online = 0;
3019        vha->flags.init_done = 0;
3020}
3021
3022/*
3023 * qla82xx_need_reset_handler
3024 *    Code to start reset sequence
3025 *
3026 * Note:
3027 *      IDC lock must be held upon entry
3028 *
3029 * Return:
3030 *    Success : 0
3031 *    Failed  : 1
3032 */
3033static void
3034qla82xx_need_reset_handler(scsi_qla_host_t *vha)
3035{
3036        uint32_t dev_state, drv_state, drv_active;
3037        uint32_t active_mask = 0;
3038        unsigned long reset_timeout;
3039        struct qla_hw_data *ha = vha->hw;
3040        struct req_que *req = ha->req_q_map[0];
3041
3042        if (vha->flags.online) {
3043                qla82xx_idc_unlock(ha);
3044                qla2x00_abort_isp_cleanup(vha);
3045                ha->isp_ops->get_flash_version(vha, req->ring);
3046                ha->isp_ops->nvram_config(vha);
3047                qla82xx_idc_lock(ha);
3048        }
3049
3050        drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3051        if (!ha->flags.nic_core_reset_owner) {
3052                ql_dbg(ql_dbg_p3p, vha, 0xb028,
3053                    "reset_acknowledged by 0x%x\n", ha->portnum);
3054                qla82xx_set_rst_ready(ha);
3055        } else {
3056                active_mask = ~(QLA82XX_DRV_ACTIVE << (ha->portnum * 4));
3057                drv_active &= active_mask;
3058                ql_dbg(ql_dbg_p3p, vha, 0xb029,
3059                    "active_mask: 0x%08x\n", active_mask);
3060        }
3061
3062        /* wait for 10 seconds for reset ack from all functions */
3063        reset_timeout = jiffies + (ha->fcoe_reset_timeout * HZ);
3064
3065        drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
3066        drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3067        dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3068
3069        ql_dbg(ql_dbg_p3p, vha, 0xb02a,
3070            "drv_state: 0x%08x, drv_active: 0x%08x, "
3071            "dev_state: 0x%08x, active_mask: 0x%08x\n",
3072            drv_state, drv_active, dev_state, active_mask);
3073
3074        while (drv_state != drv_active &&
3075            dev_state != QLA8XXX_DEV_INITIALIZING) {
3076                if (time_after_eq(jiffies, reset_timeout)) {
3077                        ql_log(ql_log_warn, vha, 0x00b5,
3078                            "Reset timeout.\n");
3079                        break;
3080                }
3081                qla82xx_idc_unlock(ha);
3082                msleep(1000);
3083                qla82xx_idc_lock(ha);
3084                drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
3085                drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3086                if (ha->flags.nic_core_reset_owner)
3087                        drv_active &= active_mask;
3088                dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3089        }
3090
3091        ql_dbg(ql_dbg_p3p, vha, 0xb02b,
3092            "drv_state: 0x%08x, drv_active: 0x%08x, "
3093            "dev_state: 0x%08x, active_mask: 0x%08x\n",
3094            drv_state, drv_active, dev_state, active_mask);
3095
3096        ql_log(ql_log_info, vha, 0x00b6,
3097            "Device state is 0x%x = %s.\n",
3098            dev_state,
3099            dev_state < MAX_STATES ? qdev_state(dev_state) : "Unknown");
3100
3101        /* Force to DEV_COLD unless someone else is starting a reset */
3102        if (dev_state != QLA8XXX_DEV_INITIALIZING &&
3103            dev_state != QLA8XXX_DEV_COLD) {
3104                ql_log(ql_log_info, vha, 0x00b7,
3105                    "HW State: COLD/RE-INIT.\n");
3106                qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_COLD);
3107                qla82xx_set_rst_ready(ha);
3108                if (ql2xmdenable) {
3109                        if (qla82xx_md_collect(vha))
3110                                ql_log(ql_log_warn, vha, 0xb02c,
3111                                    "Minidump not collected.\n");
3112                } else
3113                        ql_log(ql_log_warn, vha, 0xb04f,
3114                            "Minidump disabled.\n");
3115        }
3116}
3117
3118int
3119qla82xx_check_md_needed(scsi_qla_host_t *vha)
3120{
3121        struct qla_hw_data *ha = vha->hw;
3122        uint16_t fw_major_version, fw_minor_version, fw_subminor_version;
3123        int rval = QLA_SUCCESS;
3124
3125        fw_major_version = ha->fw_major_version;
3126        fw_minor_version = ha->fw_minor_version;
3127        fw_subminor_version = ha->fw_subminor_version;
3128
3129        rval = qla2x00_get_fw_version(vha);
3130        if (rval != QLA_SUCCESS)
3131                return rval;
3132
3133        if (ql2xmdenable) {
3134                if (!ha->fw_dumped) {
3135                        if ((fw_major_version != ha->fw_major_version ||
3136                            fw_minor_version != ha->fw_minor_version ||
3137                            fw_subminor_version != ha->fw_subminor_version) ||
3138                            (ha->prev_minidump_failed)) {
3139                                ql_dbg(ql_dbg_p3p, vha, 0xb02d,
3140                                    "Firmware version differs Previous version: %d:%d:%d - New version: %d:%d:%d, prev_minidump_failed: %d.\n",
3141                                    fw_major_version, fw_minor_version,
3142                                    fw_subminor_version,
3143                                    ha->fw_major_version,
3144                                    ha->fw_minor_version,
3145                                    ha->fw_subminor_version,
3146                                    ha->prev_minidump_failed);
3147                                /* Release MiniDump resources */
3148                                qla82xx_md_free(vha);
3149                                /* ALlocate MiniDump resources */
3150                                qla82xx_md_prep(vha);
3151                        }
3152                } else
3153                        ql_log(ql_log_info, vha, 0xb02e,
3154                            "Firmware dump available to retrieve\n");
3155        }
3156        return rval;
3157}
3158
3159
3160static int
3161qla82xx_check_fw_alive(scsi_qla_host_t *vha)
3162{
3163        uint32_t fw_heartbeat_counter;
3164        int status = 0;
3165
3166        fw_heartbeat_counter = qla82xx_rd_32(vha->hw,
3167                QLA82XX_PEG_ALIVE_COUNTER);
3168        /* all 0xff, assume AER/EEH in progress, ignore */
3169        if (fw_heartbeat_counter == 0xffffffff) {
3170                ql_dbg(ql_dbg_timer, vha, 0x6003,
3171                    "FW heartbeat counter is 0xffffffff, "
3172                    "returning status=%d.\n", status);
3173                return status;
3174        }
3175        if (vha->fw_heartbeat_counter == fw_heartbeat_counter) {
3176                vha->seconds_since_last_heartbeat++;
3177                /* FW not alive after 2 seconds */
3178                if (vha->seconds_since_last_heartbeat == 2) {
3179                        vha->seconds_since_last_heartbeat = 0;
3180                        status = 1;
3181                }
3182        } else
3183                vha->seconds_since_last_heartbeat = 0;
3184        vha->fw_heartbeat_counter = fw_heartbeat_counter;
3185        if (status)
3186                ql_dbg(ql_dbg_timer, vha, 0x6004,
3187                    "Returning status=%d.\n", status);
3188        return status;
3189}
3190
3191/*
3192 * qla82xx_device_state_handler
3193 *      Main state handler
3194 *
3195 * Note:
3196 *      IDC lock must be held upon entry
3197 *
3198 * Return:
3199 *    Success : 0
3200 *    Failed  : 1
3201 */
3202int
3203qla82xx_device_state_handler(scsi_qla_host_t *vha)
3204{
3205        uint32_t dev_state;
3206        uint32_t old_dev_state;
3207        int rval = QLA_SUCCESS;
3208        unsigned long dev_init_timeout;
3209        struct qla_hw_data *ha = vha->hw;
3210        int loopcount = 0;
3211
3212        qla82xx_idc_lock(ha);
3213        if (!vha->flags.init_done) {
3214                qla82xx_set_drv_active(vha);
3215                qla82xx_set_idc_version(vha);
3216        }
3217
3218        dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3219        old_dev_state = dev_state;
3220        ql_log(ql_log_info, vha, 0x009b,
3221            "Device state is 0x%x = %s.\n",
3222            dev_state,
3223            dev_state < MAX_STATES ? qdev_state(dev_state) : "Unknown");
3224
3225        /* wait for 30 seconds for device to go ready */
3226        dev_init_timeout = jiffies + (ha->fcoe_dev_init_timeout * HZ);
3227
3228        while (1) {
3229
3230                if (time_after_eq(jiffies, dev_init_timeout)) {
3231                        ql_log(ql_log_fatal, vha, 0x009c,
3232                            "Device init failed.\n");
3233                        rval = QLA_FUNCTION_FAILED;
3234                        break;
3235                }
3236                dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3237                if (old_dev_state != dev_state) {
3238                        loopcount = 0;
3239                        old_dev_state = dev_state;
3240                }
3241                if (loopcount < 5) {
3242                        ql_log(ql_log_info, vha, 0x009d,
3243                            "Device state is 0x%x = %s.\n",
3244                            dev_state,
3245                            dev_state < MAX_STATES ? qdev_state(dev_state) :
3246                            "Unknown");
3247                }
3248
3249                switch (dev_state) {
3250                case QLA8XXX_DEV_READY:
3251                        ha->flags.nic_core_reset_owner = 0;
3252                        goto rel_lock;
3253                case QLA8XXX_DEV_COLD:
3254                        rval = qla82xx_device_bootstrap(vha);
3255                        break;
3256                case QLA8XXX_DEV_INITIALIZING:
3257                        qla82xx_idc_unlock(ha);
3258                        msleep(1000);
3259                        qla82xx_idc_lock(ha);
3260                        break;
3261                case QLA8XXX_DEV_NEED_RESET:
3262                        if (!ql2xdontresethba)
3263                                qla82xx_need_reset_handler(vha);
3264                        else {
3265                                qla82xx_idc_unlock(ha);
3266                                msleep(1000);
3267                                qla82xx_idc_lock(ha);
3268                        }
3269                        dev_init_timeout = jiffies +
3270                            (ha->fcoe_dev_init_timeout * HZ);
3271                        break;
3272                case QLA8XXX_DEV_NEED_QUIESCENT:
3273                        qla82xx_need_qsnt_handler(vha);
3274                        /* Reset timeout value after quiescence handler */
3275                        dev_init_timeout = jiffies + (ha->fcoe_dev_init_timeout\
3276                                                         * HZ);
3277                        break;
3278                case QLA8XXX_DEV_QUIESCENT:
3279                        /* Owner will exit and other will wait for the state
3280                         * to get changed
3281                         */
3282                        if (ha->flags.quiesce_owner)
3283                                goto rel_lock;
3284
3285                        qla82xx_idc_unlock(ha);
3286                        msleep(1000);
3287                        qla82xx_idc_lock(ha);
3288
3289                        /* Reset timeout value after quiescence handler */
3290                        dev_init_timeout = jiffies + (ha->fcoe_dev_init_timeout\
3291                                                         * HZ);
3292                        break;
3293                case QLA8XXX_DEV_FAILED:
3294                        qla8xxx_dev_failed_handler(vha);
3295                        rval = QLA_FUNCTION_FAILED;
3296                        goto exit;
3297                default:
3298                        qla82xx_idc_unlock(ha);
3299                        msleep(1000);
3300                        qla82xx_idc_lock(ha);
3301                }
3302                loopcount++;
3303        }
3304rel_lock:
3305        qla82xx_idc_unlock(ha);
3306exit:
3307        return rval;
3308}
3309
3310static int qla82xx_check_temp(scsi_qla_host_t *vha)
3311{
3312        uint32_t temp, temp_state, temp_val;
3313        struct qla_hw_data *ha = vha->hw;
3314
3315        temp = qla82xx_rd_32(ha, CRB_TEMP_STATE);
3316        temp_state = qla82xx_get_temp_state(temp);
3317        temp_val = qla82xx_get_temp_val(temp);
3318
3319        if (temp_state == QLA82XX_TEMP_PANIC) {
3320                ql_log(ql_log_warn, vha, 0x600e,
3321                    "Device temperature %d degrees C exceeds "
3322                    " maximum allowed. Hardware has been shut down.\n",
3323                    temp_val);
3324                return 1;
3325        } else if (temp_state == QLA82XX_TEMP_WARN) {
3326                ql_log(ql_log_warn, vha, 0x600f,
3327                    "Device temperature %d degrees C exceeds "
3328                    "operating range. Immediate action needed.\n",
3329                    temp_val);
3330        }
3331        return 0;
3332}
3333
3334int qla82xx_read_temperature(scsi_qla_host_t *vha)
3335{
3336        uint32_t temp;
3337
3338        temp = qla82xx_rd_32(vha->hw, CRB_TEMP_STATE);
3339        return qla82xx_get_temp_val(temp);
3340}
3341
3342void qla82xx_clear_pending_mbx(scsi_qla_host_t *vha)
3343{
3344        struct qla_hw_data *ha = vha->hw;
3345
3346        if (ha->flags.mbox_busy) {
3347                ha->flags.mbox_int = 1;
3348                ha->flags.mbox_busy = 0;
3349                ql_log(ql_log_warn, vha, 0x6010,
3350                    "Doing premature completion of mbx command.\n");
3351                if (test_and_clear_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags))
3352                        complete(&ha->mbx_intr_comp);
3353        }
3354}
3355
3356void qla82xx_watchdog(scsi_qla_host_t *vha)
3357{
3358        uint32_t dev_state, halt_status;
3359        struct qla_hw_data *ha = vha->hw;
3360
3361        /* don't poll if reset is going on */
3362        if (!ha->flags.nic_core_reset_hdlr_active) {
3363                dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3364                if (qla82xx_check_temp(vha)) {
3365                        set_bit(ISP_UNRECOVERABLE, &vha->dpc_flags);
3366                        ha->flags.isp82xx_fw_hung = 1;
3367                        qla82xx_clear_pending_mbx(vha);
3368                } else if (dev_state == QLA8XXX_DEV_NEED_RESET &&
3369                    !test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags)) {
3370                        ql_log(ql_log_warn, vha, 0x6001,
3371                            "Adapter reset needed.\n");
3372                        set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3373                } else if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT &&
3374                        !test_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags)) {
3375                        ql_log(ql_log_warn, vha, 0x6002,
3376                            "Quiescent needed.\n");
3377                        set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
3378                } else if (dev_state == QLA8XXX_DEV_FAILED &&
3379                        !test_bit(ISP_UNRECOVERABLE, &vha->dpc_flags) &&
3380                        vha->flags.online == 1) {
3381                        ql_log(ql_log_warn, vha, 0xb055,
3382                            "Adapter state is failed. Offlining.\n");
3383                        set_bit(ISP_UNRECOVERABLE, &vha->dpc_flags);
3384                        ha->flags.isp82xx_fw_hung = 1;
3385                        qla82xx_clear_pending_mbx(vha);
3386                } else {
3387                        if (qla82xx_check_fw_alive(vha)) {
3388                                ql_dbg(ql_dbg_timer, vha, 0x6011,
3389                                    "disabling pause transmit on port 0 & 1.\n");
3390                                qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
3391                                    CRB_NIU_XG_PAUSE_CTL_P0|CRB_NIU_XG_PAUSE_CTL_P1);
3392                                halt_status = qla82xx_rd_32(ha,
3393                                    QLA82XX_PEG_HALT_STATUS1);
3394                                ql_log(ql_log_info, vha, 0x6005,
3395                                    "dumping hw/fw registers:.\n "
3396                                    " PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,.\n "
3397                                    " PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,.\n "
3398                                    " PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,.\n "
3399                                    " PEG_NET_4_PC: 0x%x.\n", halt_status,
3400                                    qla82xx_rd_32(ha, QLA82XX_PEG_HALT_STATUS2),
3401                                    qla82xx_rd_32(ha,
3402                                            QLA82XX_CRB_PEG_NET_0 + 0x3c),
3403                                    qla82xx_rd_32(ha,
3404                                            QLA82XX_CRB_PEG_NET_1 + 0x3c),
3405                                    qla82xx_rd_32(ha,
3406                                            QLA82XX_CRB_PEG_NET_2 + 0x3c),
3407                                    qla82xx_rd_32(ha,
3408                                            QLA82XX_CRB_PEG_NET_3 + 0x3c),
3409                                    qla82xx_rd_32(ha,
3410                                            QLA82XX_CRB_PEG_NET_4 + 0x3c));
3411                                if (((halt_status & 0x1fffff00) >> 8) == 0x67)
3412                                        ql_log(ql_log_warn, vha, 0xb052,
3413                                            "Firmware aborted with "
3414                                            "error code 0x00006700. Device is "
3415                                            "being reset.\n");
3416                                if (halt_status & HALT_STATUS_UNRECOVERABLE) {
3417                                        set_bit(ISP_UNRECOVERABLE,
3418                                            &vha->dpc_flags);
3419                                } else {
3420                                        ql_log(ql_log_info, vha, 0x6006,
3421                                            "Detect abort  needed.\n");
3422                                        set_bit(ISP_ABORT_NEEDED,
3423                                            &vha->dpc_flags);
3424                                }
3425                                ha->flags.isp82xx_fw_hung = 1;
3426                                ql_log(ql_log_warn, vha, 0x6007, "Firmware hung.\n");
3427                                qla82xx_clear_pending_mbx(vha);
3428                        }
3429                }
3430        }
3431}
3432
3433int qla82xx_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
3434{
3435        int rval = -1;
3436        struct qla_hw_data *ha = vha->hw;
3437
3438        if (IS_QLA82XX(ha))
3439                rval = qla82xx_device_state_handler(vha);
3440        else if (IS_QLA8044(ha)) {
3441                qla8044_idc_lock(ha);
3442                /* Decide the reset ownership */
3443                qla83xx_reset_ownership(vha);
3444                qla8044_idc_unlock(ha);
3445                rval = qla8044_device_state_handler(vha);
3446        }
3447        return rval;
3448}
3449
3450void
3451qla82xx_set_reset_owner(scsi_qla_host_t *vha)
3452{
3453        struct qla_hw_data *ha = vha->hw;
3454        uint32_t dev_state = 0;
3455
3456        if (IS_QLA82XX(ha))
3457                dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3458        else if (IS_QLA8044(ha))
3459                dev_state = qla8044_rd_direct(vha, QLA8044_CRB_DEV_STATE_INDEX);
3460
3461        if (dev_state == QLA8XXX_DEV_READY) {
3462                ql_log(ql_log_info, vha, 0xb02f,
3463                    "HW State: NEED RESET\n");
3464                if (IS_QLA82XX(ha)) {
3465                        qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3466                            QLA8XXX_DEV_NEED_RESET);
3467                        ha->flags.nic_core_reset_owner = 1;
3468                        ql_dbg(ql_dbg_p3p, vha, 0xb030,
3469                            "reset_owner is 0x%x\n", ha->portnum);
3470                } else if (IS_QLA8044(ha))
3471                        qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX,
3472                            QLA8XXX_DEV_NEED_RESET);
3473        } else
3474                ql_log(ql_log_info, vha, 0xb031,
3475                    "Device state is 0x%x = %s.\n",
3476                    dev_state,
3477                    dev_state < MAX_STATES ? qdev_state(dev_state) : "Unknown");
3478}
3479
3480/*
3481 *  qla82xx_abort_isp
3482 *      Resets ISP and aborts all outstanding commands.
3483 *
3484 * Input:
3485 *      ha           = adapter block pointer.
3486 *
3487 * Returns:
3488 *      0 = success
3489 */
3490int
3491qla82xx_abort_isp(scsi_qla_host_t *vha)
3492{
3493        int rval = -1;
3494        struct qla_hw_data *ha = vha->hw;
3495
3496        if (vha->device_flags & DFLG_DEV_FAILED) {
3497                ql_log(ql_log_warn, vha, 0x8024,
3498                    "Device in failed state, exiting.\n");
3499                return QLA_SUCCESS;
3500        }
3501        ha->flags.nic_core_reset_hdlr_active = 1;
3502
3503        qla82xx_idc_lock(ha);
3504        qla82xx_set_reset_owner(vha);
3505        qla82xx_idc_unlock(ha);
3506
3507        if (IS_QLA82XX(ha))
3508                rval = qla82xx_device_state_handler(vha);
3509        else if (IS_QLA8044(ha)) {
3510                qla8044_idc_lock(ha);
3511                /* Decide the reset ownership */
3512                qla83xx_reset_ownership(vha);
3513                qla8044_idc_unlock(ha);
3514                rval = qla8044_device_state_handler(vha);
3515        }
3516
3517        qla82xx_idc_lock(ha);
3518        qla82xx_clear_rst_ready(ha);
3519        qla82xx_idc_unlock(ha);
3520
3521        if (rval == QLA_SUCCESS) {
3522                ha->flags.isp82xx_fw_hung = 0;
3523                ha->flags.nic_core_reset_hdlr_active = 0;
3524                qla82xx_restart_isp(vha);
3525        }
3526
3527        if (rval) {
3528                vha->flags.online = 1;
3529                if (test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
3530                        if (ha->isp_abort_cnt == 0) {
3531                                ql_log(ql_log_warn, vha, 0x8027,
3532                                    "ISP error recover failed - board "
3533                                    "disabled.\n");
3534                                /*
3535                                 * The next call disables the board
3536                                 * completely.
3537                                 */
3538                                ha->isp_ops->reset_adapter(vha);
3539                                vha->flags.online = 0;
3540                                clear_bit(ISP_ABORT_RETRY,
3541                                    &vha->dpc_flags);
3542                                rval = QLA_SUCCESS;
3543                        } else { /* schedule another ISP abort */
3544                                ha->isp_abort_cnt--;
3545                                ql_log(ql_log_warn, vha, 0x8036,
3546                                    "ISP abort - retry remaining %d.\n",
3547                                    ha->isp_abort_cnt);
3548                                rval = QLA_FUNCTION_FAILED;
3549                        }
3550                } else {
3551                        ha->isp_abort_cnt = MAX_RETRIES_OF_ISP_ABORT;
3552                        ql_dbg(ql_dbg_taskm, vha, 0x8029,
3553                            "ISP error recovery - retrying (%d) more times.\n",
3554                            ha->isp_abort_cnt);
3555                        set_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
3556                        rval = QLA_FUNCTION_FAILED;
3557                }
3558        }
3559        return rval;
3560}
3561
3562/*
3563 *  qla82xx_fcoe_ctx_reset
3564 *      Perform a quick reset and aborts all outstanding commands.
3565 *      This will only perform an FCoE context reset and avoids a full blown
3566 *      chip reset.
3567 *
3568 * Input:
3569 *      ha = adapter block pointer.
3570 *      is_reset_path = flag for identifying the reset path.
3571 *
3572 * Returns:
3573 *      0 = success
3574 */
3575int qla82xx_fcoe_ctx_reset(scsi_qla_host_t *vha)
3576{
3577        int rval = QLA_FUNCTION_FAILED;
3578
3579        if (vha->flags.online) {
3580                /* Abort all outstanding commands, so as to be requeued later */
3581                qla2x00_abort_isp_cleanup(vha);
3582        }
3583
3584        /* Stop currently executing firmware.
3585         * This will destroy existing FCoE context at the F/W end.
3586         */
3587        qla2x00_try_to_stop_firmware(vha);
3588
3589        /* Restart. Creates a new FCoE context on INIT_FIRMWARE. */
3590        rval = qla82xx_restart_isp(vha);
3591
3592        return rval;
3593}
3594
3595/*
3596 * qla2x00_wait_for_fcoe_ctx_reset
3597 *    Wait till the FCoE context is reset.
3598 *
3599 * Note:
3600 *    Does context switching here.
3601 *    Release SPIN_LOCK (if any) before calling this routine.
3602 *
3603 * Return:
3604 *    Success (fcoe_ctx reset is done) : 0
3605 *    Failed  (fcoe_ctx reset not completed within max loop timout ) : 1
3606 */
3607int qla2x00_wait_for_fcoe_ctx_reset(scsi_qla_host_t *vha)
3608{
3609        int status = QLA_FUNCTION_FAILED;
3610        unsigned long wait_reset;
3611
3612        wait_reset = jiffies + (MAX_LOOP_TIMEOUT * HZ);
3613        while ((test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) ||
3614            test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
3615            && time_before(jiffies, wait_reset)) {
3616
3617                set_current_state(TASK_UNINTERRUPTIBLE);
3618                schedule_timeout(HZ);
3619
3620                if (!test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) &&
3621                    !test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) {
3622                        status = QLA_SUCCESS;
3623                        break;
3624                }
3625        }
3626        ql_dbg(ql_dbg_p3p, vha, 0xb027,
3627               "%s: status=%d.\n", __func__, status);
3628
3629        return status;
3630}
3631
3632void
3633qla82xx_chip_reset_cleanup(scsi_qla_host_t *vha)
3634{
3635        int i, fw_state = 0;
3636        unsigned long flags;
3637        struct qla_hw_data *ha = vha->hw;
3638
3639        /* Check if 82XX firmware is alive or not
3640         * We may have arrived here from NEED_RESET
3641         * detection only
3642         */
3643        if (!ha->flags.isp82xx_fw_hung) {
3644                for (i = 0; i < 2; i++) {
3645                        msleep(1000);
3646                        if (IS_QLA82XX(ha))
3647                                fw_state = qla82xx_check_fw_alive(vha);
3648                        else if (IS_QLA8044(ha))
3649                                fw_state = qla8044_check_fw_alive(vha);
3650                        if (fw_state) {
3651                                ha->flags.isp82xx_fw_hung = 1;
3652                                qla82xx_clear_pending_mbx(vha);
3653                                break;
3654                        }
3655                }
3656        }
3657        ql_dbg(ql_dbg_init, vha, 0x00b0,
3658            "Entered %s fw_hung=%d.\n",
3659            __func__, ha->flags.isp82xx_fw_hung);
3660
3661        /* Abort all commands gracefully if fw NOT hung */
3662        if (!ha->flags.isp82xx_fw_hung) {
3663                int cnt, que;
3664                srb_t *sp;
3665                struct req_que *req;
3666
3667                spin_lock_irqsave(&ha->hardware_lock, flags);
3668                for (que = 0; que < ha->max_req_queues; que++) {
3669                        req = ha->req_q_map[que];
3670                        if (!req)
3671                                continue;
3672                        for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++) {
3673                                sp = req->outstanding_cmds[cnt];
3674                                if (sp) {
3675                                        if ((!sp->u.scmd.ctx ||
3676                                            (sp->flags &
3677                                                SRB_FCP_CMND_DMA_VALID)) &&
3678                                                !ha->flags.isp82xx_fw_hung) {
3679                                                spin_unlock_irqrestore(
3680                                                    &ha->hardware_lock, flags);
3681                                                if (ha->isp_ops->abort_command(sp)) {
3682                                                        ql_log(ql_log_info, vha,
3683                                                            0x00b1,
3684                                                            "mbx abort failed.\n");
3685                                                } else {
3686                                                        ql_log(ql_log_info, vha,
3687                                                            0x00b2,
3688                                                            "mbx abort success.\n");
3689                                                }
3690                                                spin_lock_irqsave(&ha->hardware_lock, flags);
3691                                        }
3692                                }
3693                        }
3694                }
3695                spin_unlock_irqrestore(&ha->hardware_lock, flags);
3696
3697                /* Wait for pending cmds (physical and virtual) to complete */
3698                if (!qla2x00_eh_wait_for_pending_commands(vha, 0, 0,
3699                    WAIT_HOST) == QLA_SUCCESS) {
3700                        ql_dbg(ql_dbg_init, vha, 0x00b3,
3701                            "Done wait for "
3702                            "pending commands.\n");
3703                }
3704        }
3705}
3706
3707/* Minidump related functions */
3708static int
3709qla82xx_minidump_process_control(scsi_qla_host_t *vha,
3710        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3711{
3712        struct qla_hw_data *ha = vha->hw;
3713        struct qla82xx_md_entry_crb *crb_entry;
3714        uint32_t read_value, opcode, poll_time;
3715        uint32_t addr, index, crb_addr;
3716        unsigned long wtime;
3717        struct qla82xx_md_template_hdr *tmplt_hdr;
3718        uint32_t rval = QLA_SUCCESS;
3719        int i;
3720
3721        tmplt_hdr = (struct qla82xx_md_template_hdr *)ha->md_tmplt_hdr;
3722        crb_entry = (struct qla82xx_md_entry_crb *)entry_hdr;
3723        crb_addr = crb_entry->addr;
3724
3725        for (i = 0; i < crb_entry->op_count; i++) {
3726                opcode = crb_entry->crb_ctrl.opcode;
3727                if (opcode & QLA82XX_DBG_OPCODE_WR) {
3728                        qla82xx_md_rw_32(ha, crb_addr,
3729                            crb_entry->value_1, 1);
3730                        opcode &= ~QLA82XX_DBG_OPCODE_WR;
3731                }
3732
3733                if (opcode & QLA82XX_DBG_OPCODE_RW) {
3734                        read_value = qla82xx_md_rw_32(ha, crb_addr, 0, 0);
3735                        qla82xx_md_rw_32(ha, crb_addr, read_value, 1);
3736                        opcode &= ~QLA82XX_DBG_OPCODE_RW;
3737                }
3738
3739                if (opcode & QLA82XX_DBG_OPCODE_AND) {
3740                        read_value = qla82xx_md_rw_32(ha, crb_addr, 0, 0);
3741                        read_value &= crb_entry->value_2;
3742                        opcode &= ~QLA82XX_DBG_OPCODE_AND;
3743                        if (opcode & QLA82XX_DBG_OPCODE_OR) {
3744                                read_value |= crb_entry->value_3;
3745                                opcode &= ~QLA82XX_DBG_OPCODE_OR;
3746                        }
3747                        qla82xx_md_rw_32(ha, crb_addr, read_value, 1);
3748                }
3749
3750                if (opcode & QLA82XX_DBG_OPCODE_OR) {
3751                        read_value = qla82xx_md_rw_32(ha, crb_addr, 0, 0);
3752                        read_value |= crb_entry->value_3;
3753                        qla82xx_md_rw_32(ha, crb_addr, read_value, 1);
3754                        opcode &= ~QLA82XX_DBG_OPCODE_OR;
3755                }
3756
3757                if (opcode & QLA82XX_DBG_OPCODE_POLL) {
3758                        poll_time = crb_entry->crb_strd.poll_timeout;
3759                        wtime = jiffies + poll_time;
3760                        read_value = qla82xx_md_rw_32(ha, crb_addr, 0, 0);
3761
3762                        do {
3763                                if ((read_value & crb_entry->value_2)
3764                                    == crb_entry->value_1)
3765                                        break;
3766                                else if (time_after_eq(jiffies, wtime)) {
3767                                        /* capturing dump failed */
3768                                        rval = QLA_FUNCTION_FAILED;
3769                                        break;
3770                                } else
3771                                        read_value = qla82xx_md_rw_32(ha,
3772                                            crb_addr, 0, 0);
3773                        } while (1);
3774                        opcode &= ~QLA82XX_DBG_OPCODE_POLL;
3775                }
3776
3777                if (opcode & QLA82XX_DBG_OPCODE_RDSTATE) {
3778                        if (crb_entry->crb_strd.state_index_a) {
3779                                index = crb_entry->crb_strd.state_index_a;
3780                                addr = tmplt_hdr->saved_state_array[index];
3781                        } else
3782                                addr = crb_addr;
3783
3784                        read_value = qla82xx_md_rw_32(ha, addr, 0, 0);
3785                        index = crb_entry->crb_ctrl.state_index_v;
3786                        tmplt_hdr->saved_state_array[index] = read_value;
3787                        opcode &= ~QLA82XX_DBG_OPCODE_RDSTATE;
3788                }
3789
3790                if (opcode & QLA82XX_DBG_OPCODE_WRSTATE) {
3791                        if (crb_entry->crb_strd.state_index_a) {
3792                                index = crb_entry->crb_strd.state_index_a;
3793                                addr = tmplt_hdr->saved_state_array[index];
3794                        } else
3795                                addr = crb_addr;
3796
3797                        if (crb_entry->crb_ctrl.state_index_v) {
3798                                index = crb_entry->crb_ctrl.state_index_v;
3799                                read_value =
3800                                    tmplt_hdr->saved_state_array[index];
3801                        } else
3802                                read_value = crb_entry->value_1;
3803
3804                        qla82xx_md_rw_32(ha, addr, read_value, 1);
3805                        opcode &= ~QLA82XX_DBG_OPCODE_WRSTATE;
3806                }
3807
3808                if (opcode & QLA82XX_DBG_OPCODE_MDSTATE) {
3809                        index = crb_entry->crb_ctrl.state_index_v;
3810                        read_value = tmplt_hdr->saved_state_array[index];
3811                        read_value <<= crb_entry->crb_ctrl.shl;
3812                        read_value >>= crb_entry->crb_ctrl.shr;
3813                        if (crb_entry->value_2)
3814                                read_value &= crb_entry->value_2;
3815                        read_value |= crb_entry->value_3;
3816                        read_value += crb_entry->value_1;
3817                        tmplt_hdr->saved_state_array[index] = read_value;
3818                        opcode &= ~QLA82XX_DBG_OPCODE_MDSTATE;
3819                }
3820                crb_addr += crb_entry->crb_strd.addr_stride;
3821        }
3822        return rval;
3823}
3824
3825static void
3826qla82xx_minidump_process_rdocm(scsi_qla_host_t *vha,
3827        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3828{
3829        struct qla_hw_data *ha = vha->hw;
3830        uint32_t r_addr, r_stride, loop_cnt, i, r_value;
3831        struct qla82xx_md_entry_rdocm *ocm_hdr;
3832        uint32_t *data_ptr = *d_ptr;
3833
3834        ocm_hdr = (struct qla82xx_md_entry_rdocm *)entry_hdr;
3835        r_addr = ocm_hdr->read_addr;
3836        r_stride = ocm_hdr->read_addr_stride;
3837        loop_cnt = ocm_hdr->op_count;
3838
3839        for (i = 0; i < loop_cnt; i++) {
3840                r_value = RD_REG_DWORD(r_addr + ha->nx_pcibase);
3841                *data_ptr++ = cpu_to_le32(r_value);
3842                r_addr += r_stride;
3843        }
3844        *d_ptr = data_ptr;
3845}
3846
3847static void
3848qla82xx_minidump_process_rdmux(scsi_qla_host_t *vha,
3849        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3850{
3851        struct qla_hw_data *ha = vha->hw;
3852        uint32_t r_addr, s_stride, s_addr, s_value, loop_cnt, i, r_value;
3853        struct qla82xx_md_entry_mux *mux_hdr;
3854        uint32_t *data_ptr = *d_ptr;
3855
3856        mux_hdr = (struct qla82xx_md_entry_mux *)entry_hdr;
3857        r_addr = mux_hdr->read_addr;
3858        s_addr = mux_hdr->select_addr;
3859        s_stride = mux_hdr->select_value_stride;
3860        s_value = mux_hdr->select_value;
3861        loop_cnt = mux_hdr->op_count;
3862
3863        for (i = 0; i < loop_cnt; i++) {
3864                qla82xx_md_rw_32(ha, s_addr, s_value, 1);
3865                r_value = qla82xx_md_rw_32(ha, r_addr, 0, 0);
3866                *data_ptr++ = cpu_to_le32(s_value);
3867                *data_ptr++ = cpu_to_le32(r_value);
3868                s_value += s_stride;
3869        }
3870        *d_ptr = data_ptr;
3871}
3872
3873static void
3874qla82xx_minidump_process_rdcrb(scsi_qla_host_t *vha,
3875        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3876{
3877        struct qla_hw_data *ha = vha->hw;
3878        uint32_t r_addr, r_stride, loop_cnt, i, r_value;
3879        struct qla82xx_md_entry_crb *crb_hdr;
3880        uint32_t *data_ptr = *d_ptr;
3881
3882        crb_hdr = (struct qla82xx_md_entry_crb *)entry_hdr;
3883        r_addr = crb_hdr->addr;
3884        r_stride = crb_hdr->crb_strd.addr_stride;
3885        loop_cnt = crb_hdr->op_count;
3886
3887        for (i = 0; i < loop_cnt; i++) {
3888                r_value = qla82xx_md_rw_32(ha, r_addr, 0, 0);
3889                *data_ptr++ = cpu_to_le32(r_addr);
3890                *data_ptr++ = cpu_to_le32(r_value);
3891                r_addr += r_stride;
3892        }
3893        *d_ptr = data_ptr;
3894}
3895
3896static int
3897qla82xx_minidump_process_l2tag(scsi_qla_host_t *vha,
3898        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3899{
3900        struct qla_hw_data *ha = vha->hw;
3901        uint32_t addr, r_addr, c_addr, t_r_addr;
3902        uint32_t i, k, loop_count, t_value, r_cnt, r_value;
3903        unsigned long p_wait, w_time, p_mask;
3904        uint32_t c_value_w, c_value_r;
3905        struct qla82xx_md_entry_cache *cache_hdr;
3906        int rval = QLA_FUNCTION_FAILED;
3907        uint32_t *data_ptr = *d_ptr;
3908
3909        cache_hdr = (struct qla82xx_md_entry_cache *)entry_hdr;
3910        loop_count = cache_hdr->op_count;
3911        r_addr = cache_hdr->read_addr;
3912        c_addr = cache_hdr->control_addr;
3913        c_value_w = cache_hdr->cache_ctrl.write_value;
3914
3915        t_r_addr = cache_hdr->tag_reg_addr;
3916        t_value = cache_hdr->addr_ctrl.init_tag_value;
3917        r_cnt = cache_hdr->read_ctrl.read_addr_cnt;
3918        p_wait = cache_hdr->cache_ctrl.poll_wait;
3919        p_mask = cache_hdr->cache_ctrl.poll_mask;
3920
3921        for (i = 0; i < loop_count; i++) {
3922                qla82xx_md_rw_32(ha, t_r_addr, t_value, 1);
3923                if (c_value_w)
3924                        qla82xx_md_rw_32(ha, c_addr, c_value_w, 1);
3925
3926                if (p_mask) {
3927                        w_time = jiffies + p_wait;
3928                        do {
3929                                c_value_r = qla82xx_md_rw_32(ha, c_addr, 0, 0);
3930                                if ((c_value_r & p_mask) == 0)
3931                                        break;
3932                                else if (time_after_eq(jiffies, w_time)) {
3933                                        /* capturing dump failed */
3934                                        ql_dbg(ql_dbg_p3p, vha, 0xb032,
3935                                            "c_value_r: 0x%x, poll_mask: 0x%lx, "
3936                                            "w_time: 0x%lx\n",
3937                                            c_value_r, p_mask, w_time);
3938                                        return rval;
3939                                }
3940                        } while (1);
3941                }
3942
3943                addr = r_addr;
3944                for (k = 0; k < r_cnt; k++) {
3945                        r_value = qla82xx_md_rw_32(ha, addr, 0, 0);
3946                        *data_ptr++ = cpu_to_le32(r_value);
3947                        addr += cache_hdr->read_ctrl.read_addr_stride;
3948                }
3949                t_value += cache_hdr->addr_ctrl.tag_value_stride;
3950        }
3951        *d_ptr = data_ptr;
3952        return QLA_SUCCESS;
3953}
3954
3955static void
3956qla82xx_minidump_process_l1cache(scsi_qla_host_t *vha,
3957        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3958{
3959        struct qla_hw_data *ha = vha->hw;
3960        uint32_t addr, r_addr, c_addr, t_r_addr;
3961        uint32_t i, k, loop_count, t_value, r_cnt, r_value;
3962        uint32_t c_value_w;
3963        struct qla82xx_md_entry_cache *cache_hdr;
3964        uint32_t *data_ptr = *d_ptr;
3965
3966        cache_hdr = (struct qla82xx_md_entry_cache *)entry_hdr;
3967        loop_count = cache_hdr->op_count;
3968        r_addr = cache_hdr->read_addr;
3969        c_addr = cache_hdr->control_addr;
3970        c_value_w = cache_hdr->cache_ctrl.write_value;
3971
3972        t_r_addr = cache_hdr->tag_reg_addr;
3973        t_value = cache_hdr->addr_ctrl.init_tag_value;
3974        r_cnt = cache_hdr->read_ctrl.read_addr_cnt;
3975
3976        for (i = 0; i < loop_count; i++) {
3977                qla82xx_md_rw_32(ha, t_r_addr, t_value, 1);
3978                qla82xx_md_rw_32(ha, c_addr, c_value_w, 1);
3979                addr = r_addr;
3980                for (k = 0; k < r_cnt; k++) {
3981                        r_value = qla82xx_md_rw_32(ha, addr, 0, 0);
3982                        *data_ptr++ = cpu_to_le32(r_value);
3983                        addr += cache_hdr->read_ctrl.read_addr_stride;
3984                }
3985                t_value += cache_hdr->addr_ctrl.tag_value_stride;
3986        }
3987        *d_ptr = data_ptr;
3988}
3989
3990static void
3991qla82xx_minidump_process_queue(scsi_qla_host_t *vha,
3992        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3993{
3994        struct qla_hw_data *ha = vha->hw;
3995        uint32_t s_addr, r_addr;
3996        uint32_t r_stride, r_value, r_cnt, qid = 0;
3997        uint32_t i, k, loop_cnt;
3998        struct qla82xx_md_entry_queue *q_hdr;
3999        uint32_t *data_ptr = *d_ptr;
4000
4001        q_hdr = (struct qla82xx_md_entry_queue *)entry_hdr;
4002        s_addr = q_hdr->select_addr;
4003        r_cnt = q_hdr->rd_strd.read_addr_cnt;
4004        r_stride = q_hdr->rd_strd.read_addr_stride;
4005        loop_cnt = q_hdr->op_count;
4006
4007        for (i = 0; i < loop_cnt; i++) {
4008                qla82xx_md_rw_32(ha, s_addr, qid, 1);
4009                r_addr = q_hdr->read_addr;
4010                for (k = 0; k < r_cnt; k++) {
4011                        r_value = qla82xx_md_rw_32(ha, r_addr, 0, 0);
4012                        *data_ptr++ = cpu_to_le32(r_value);
4013                        r_addr += r_stride;
4014                }
4015                qid += q_hdr->q_strd.queue_id_stride;
4016        }
4017        *d_ptr = data_ptr;
4018}
4019
4020static void
4021qla82xx_minidump_process_rdrom(scsi_qla_host_t *vha,
4022        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
4023{
4024        struct qla_hw_data *ha = vha->hw;
4025        uint32_t r_addr, r_value;
4026        uint32_t i, loop_cnt;
4027        struct qla82xx_md_entry_rdrom *rom_hdr;
4028        uint32_t *data_ptr = *d_ptr;
4029
4030        rom_hdr = (struct qla82xx_md_entry_rdrom *)entry_hdr;
4031        r_addr = rom_hdr->read_addr;
4032        loop_cnt = rom_hdr->read_data_size/sizeof(uint32_t);
4033
4034        for (i = 0; i < loop_cnt; i++) {
4035                qla82xx_md_rw_32(ha, MD_DIRECT_ROM_WINDOW,
4036                    (r_addr & 0xFFFF0000), 1);
4037                r_value = qla82xx_md_rw_32(ha,
4038                    MD_DIRECT_ROM_READ_BASE +
4039                    (r_addr & 0x0000FFFF), 0, 0);
4040                *data_ptr++ = cpu_to_le32(r_value);
4041                r_addr += sizeof(uint32_t);
4042        }
4043        *d_ptr = data_ptr;
4044}
4045
4046static int
4047qla82xx_minidump_process_rdmem(scsi_qla_host_t *vha,
4048        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
4049{
4050        struct qla_hw_data *ha = vha->hw;
4051        uint32_t r_addr, r_value, r_data;
4052        uint32_t i, j, loop_cnt;
4053        struct qla82xx_md_entry_rdmem *m_hdr;
4054        unsigned long flags;
4055        int rval = QLA_FUNCTION_FAILED;
4056        uint32_t *data_ptr = *d_ptr;
4057
4058        m_hdr = (struct qla82xx_md_entry_rdmem *)entry_hdr;
4059        r_addr = m_hdr->read_addr;
4060        loop_cnt = m_hdr->read_data_size/16;
4061
4062        if (r_addr & 0xf) {
4063                ql_log(ql_log_warn, vha, 0xb033,
4064                    "Read addr 0x%x not 16 bytes aligned\n", r_addr);
4065                return rval;
4066        }
4067
4068        if (m_hdr->read_data_size % 16) {
4069                ql_log(ql_log_warn, vha, 0xb034,
4070                    "Read data[0x%x] not multiple of 16 bytes\n",
4071                    m_hdr->read_data_size);
4072                return rval;
4073        }
4074
4075        ql_dbg(ql_dbg_p3p, vha, 0xb035,
4076            "[%s]: rdmem_addr: 0x%x, read_data_size: 0x%x, loop_cnt: 0x%x\n",
4077            __func__, r_addr, m_hdr->read_data_size, loop_cnt);
4078
4079        write_lock_irqsave(&ha->hw_lock, flags);
4080        for (i = 0; i < loop_cnt; i++) {
4081                qla82xx_md_rw_32(ha, MD_MIU_TEST_AGT_ADDR_LO, r_addr, 1);
4082                r_value = 0;
4083                qla82xx_md_rw_32(ha, MD_MIU_TEST_AGT_ADDR_HI, r_value, 1);
4084                r_value = MIU_TA_CTL_ENABLE;
4085                qla82xx_md_rw_32(ha, MD_MIU_TEST_AGT_CTRL, r_value, 1);
4086                r_value = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE;
4087                qla82xx_md_rw_32(ha, MD_MIU_TEST_AGT_CTRL, r_value, 1);
4088
4089                for (j = 0; j < MAX_CTL_CHECK; j++) {
4090                        r_value = qla82xx_md_rw_32(ha,
4091                            MD_MIU_TEST_AGT_CTRL, 0, 0);
4092                        if ((r_value & MIU_TA_CTL_BUSY) == 0)
4093                                break;
4094                }
4095
4096                if (j >= MAX_CTL_CHECK) {
4097                        printk_ratelimited(KERN_ERR
4098                            "failed to read through agent\n");
4099                        write_unlock_irqrestore(&ha->hw_lock, flags);
4100                        return rval;
4101                }
4102
4103                for (j = 0; j < 4; j++) {
4104                        r_data = qla82xx_md_rw_32(ha,
4105                            MD_MIU_TEST_AGT_RDDATA[j], 0, 0);
4106                        *data_ptr++ = cpu_to_le32(r_data);
4107                }
4108                r_addr += 16;
4109        }
4110        write_unlock_irqrestore(&ha->hw_lock, flags);
4111        *d_ptr = data_ptr;
4112        return QLA_SUCCESS;
4113}
4114
4115int
4116qla82xx_validate_template_chksum(scsi_qla_host_t *vha)
4117{
4118        struct qla_hw_data *ha = vha->hw;
4119        uint64_t chksum = 0;
4120        uint32_t *d_ptr = (uint32_t *)ha->md_tmplt_hdr;
4121        int count = ha->md_template_size/sizeof(uint32_t);
4122
4123        while (count-- > 0)
4124                chksum += *d_ptr++;
4125        while (chksum >> 32)
4126                chksum = (chksum & 0xFFFFFFFF) + (chksum >> 32);
4127        return ~chksum;
4128}
4129
4130static void
4131qla82xx_mark_entry_skipped(scsi_qla_host_t *vha,
4132        qla82xx_md_entry_hdr_t *entry_hdr, int index)
4133{
4134        entry_hdr->d_ctrl.driver_flags |= QLA82XX_DBG_SKIPPED_FLAG;
4135        ql_dbg(ql_dbg_p3p, vha, 0xb036,
4136            "Skipping entry[%d]: "
4137            "ETYPE[0x%x]-ELEVEL[0x%x]\n",
4138            index, entry_hdr->entry_type,
4139            entry_hdr->d_ctrl.entry_capture_mask);
4140}
4141
4142int
4143qla82xx_md_collect(scsi_qla_host_t *vha)
4144{
4145        struct qla_hw_data *ha = vha->hw;
4146        int no_entry_hdr = 0;
4147        qla82xx_md_entry_hdr_t *entry_hdr;
4148        struct qla82xx_md_template_hdr *tmplt_hdr;
4149        uint32_t *data_ptr;
4150        uint32_t total_data_size = 0, f_capture_mask, data_collected = 0;
4151        int i = 0, rval = QLA_FUNCTION_FAILED;
4152
4153        tmplt_hdr = (struct qla82xx_md_template_hdr *)ha->md_tmplt_hdr;
4154        data_ptr = (uint32_t *)ha->md_dump;
4155
4156        if (ha->fw_dumped) {
4157                ql_log(ql_log_warn, vha, 0xb037,
4158                    "Firmware has been previously dumped (%p) "
4159                    "-- ignoring request.\n", ha->fw_dump);
4160                goto md_failed;
4161        }
4162
4163        ha->fw_dumped = 0;
4164
4165        if (!ha->md_tmplt_hdr || !ha->md_dump) {
4166                ql_log(ql_log_warn, vha, 0xb038,
4167                    "Memory not allocated for minidump capture\n");
4168                goto md_failed;
4169        }
4170
4171        if (ha->flags.isp82xx_no_md_cap) {
4172                ql_log(ql_log_warn, vha, 0xb054,
4173                    "Forced reset from application, "
4174                    "ignore minidump capture\n");
4175                ha->flags.isp82xx_no_md_cap = 0;
4176                goto md_failed;
4177        }
4178
4179        if (qla82xx_validate_template_chksum(vha)) {
4180                ql_log(ql_log_info, vha, 0xb039,
4181                    "Template checksum validation error\n");
4182                goto md_failed;
4183        }
4184
4185        no_entry_hdr = tmplt_hdr->num_of_entries;
4186        ql_dbg(ql_dbg_p3p, vha, 0xb03a,
4187            "No of entry headers in Template: 0x%x\n", no_entry_hdr);
4188
4189        ql_dbg(ql_dbg_p3p, vha, 0xb03b,
4190            "Capture Mask obtained: 0x%x\n", tmplt_hdr->capture_debug_level);
4191
4192        f_capture_mask = tmplt_hdr->capture_debug_level & 0xFF;
4193
4194        /* Validate whether required debug level is set */
4195        if ((f_capture_mask & 0x3) != 0x3) {
4196                ql_log(ql_log_warn, vha, 0xb03c,
4197                    "Minimum required capture mask[0x%x] level not set\n",
4198                    f_capture_mask);
4199                goto md_failed;
4200        }
4201        tmplt_hdr->driver_capture_mask = ql2xmdcapmask;
4202
4203        tmplt_hdr->driver_info[0] = vha->host_no;
4204        tmplt_hdr->driver_info[1] = (QLA_DRIVER_MAJOR_VER << 24) |
4205            (QLA_DRIVER_MINOR_VER << 16) | (QLA_DRIVER_PATCH_VER << 8) |
4206            QLA_DRIVER_BETA_VER;
4207
4208        total_data_size = ha->md_dump_size;
4209
4210        ql_dbg(ql_dbg_p3p, vha, 0xb03d,
4211            "Total minidump data_size 0x%x to be captured\n", total_data_size);
4212
4213        /* Check whether template obtained is valid */
4214        if (tmplt_hdr->entry_type != QLA82XX_TLHDR) {
4215                ql_log(ql_log_warn, vha, 0xb04e,
4216                    "Bad template header entry type: 0x%x obtained\n",
4217                    tmplt_hdr->entry_type);
4218                goto md_failed;
4219        }
4220
4221        entry_hdr = (qla82xx_md_entry_hdr_t *) \
4222            (((uint8_t *)ha->md_tmplt_hdr) + tmplt_hdr->first_entry_offset);
4223
4224        /* Walk through the entry headers */
4225        for (i = 0; i < no_entry_hdr; i++) {
4226
4227                if (data_collected > total_data_size) {
4228                        ql_log(ql_log_warn, vha, 0xb03e,
4229                            "More MiniDump data collected: [0x%x]\n",
4230                            data_collected);
4231                        goto md_failed;
4232                }
4233
4234                if (!(entry_hdr->d_ctrl.entry_capture_mask &
4235                    ql2xmdcapmask)) {
4236                        entry_hdr->d_ctrl.driver_flags |=
4237                            QLA82XX_DBG_SKIPPED_FLAG;
4238                        ql_dbg(ql_dbg_p3p, vha, 0xb03f,
4239                            "Skipping entry[%d]: "
4240                            "ETYPE[0x%x]-ELEVEL[0x%x]\n",
4241                            i, entry_hdr->entry_type,
4242                            entry_hdr->d_ctrl.entry_capture_mask);
4243                        goto skip_nxt_entry;
4244                }
4245
4246                ql_dbg(ql_dbg_p3p, vha, 0xb040,
4247                    "[%s]: data ptr[%d]: %p, entry_hdr: %p\n"
4248                    "entry_type: 0x%x, captrue_mask: 0x%x\n",
4249                    __func__, i, data_ptr, entry_hdr,
4250                    entry_hdr->entry_type,
4251                    entry_hdr->d_ctrl.entry_capture_mask);
4252
4253                ql_dbg(ql_dbg_p3p, vha, 0xb041,
4254                    "Data collected: [0x%x], Dump size left:[0x%x]\n",
4255                    data_collected, (ha->md_dump_size - data_collected));
4256
4257                /* Decode the entry type and take
4258                 * required action to capture debug data */
4259                switch (entry_hdr->entry_type) {
4260                case QLA82XX_RDEND:
4261                        qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4262                        break;
4263                case QLA82XX_CNTRL:
4264                        rval = qla82xx_minidump_process_control(vha,
4265                            entry_hdr, &data_ptr);
4266                        if (rval != QLA_SUCCESS) {
4267                                qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4268                                goto md_failed;
4269                        }
4270                        break;
4271                case QLA82XX_RDCRB:
4272                        qla82xx_minidump_process_rdcrb(vha,
4273                            entry_hdr, &data_ptr);
4274                        break;
4275                case QLA82XX_RDMEM:
4276                        rval = qla82xx_minidump_process_rdmem(vha,
4277                            entry_hdr, &data_ptr);
4278                        if (rval != QLA_SUCCESS) {
4279                                qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4280                                goto md_failed;
4281                        }
4282                        break;
4283                case QLA82XX_BOARD:
4284                case QLA82XX_RDROM:
4285                        qla82xx_minidump_process_rdrom(vha,
4286                            entry_hdr, &data_ptr);
4287                        break;
4288                case QLA82XX_L2DTG:
4289                case QLA82XX_L2ITG:
4290                case QLA82XX_L2DAT:
4291                case QLA82XX_L2INS:
4292                        rval = qla82xx_minidump_process_l2tag(vha,
4293                            entry_hdr, &data_ptr);
4294                        if (rval != QLA_SUCCESS) {
4295                                qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4296                                goto md_failed;
4297                        }
4298                        break;
4299                case QLA82XX_L1DAT:
4300                case QLA82XX_L1INS:
4301                        qla82xx_minidump_process_l1cache(vha,
4302                            entry_hdr, &data_ptr);
4303                        break;
4304                case QLA82XX_RDOCM:
4305                        qla82xx_minidump_process_rdocm(vha,
4306                            entry_hdr, &data_ptr);
4307                        break;
4308                case QLA82XX_RDMUX:
4309                        qla82xx_minidump_process_rdmux(vha,
4310                            entry_hdr, &data_ptr);
4311                        break;
4312                case QLA82XX_QUEUE:
4313                        qla82xx_minidump_process_queue(vha,
4314                            entry_hdr, &data_ptr);
4315                        break;
4316                case QLA82XX_RDNOP:
4317                default:
4318                        qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4319                        break;
4320                }
4321
4322                ql_dbg(ql_dbg_p3p, vha, 0xb042,
4323                    "[%s]: data ptr[%d]: %p\n", __func__, i, data_ptr);
4324
4325                data_collected = (uint8_t *)data_ptr -
4326                    (uint8_t *)ha->md_dump;
4327skip_nxt_entry:
4328                entry_hdr = (qla82xx_md_entry_hdr_t *) \
4329                    (((uint8_t *)entry_hdr) + entry_hdr->entry_size);
4330        }
4331
4332        if (data_collected != total_data_size) {
4333                ql_dbg(ql_dbg_p3p, vha, 0xb043,
4334                    "MiniDump data mismatch: Data collected: [0x%x],"
4335                    "total_data_size:[0x%x]\n",
4336                    data_collected, total_data_size);
4337                goto md_failed;
4338        }
4339
4340        ql_log(ql_log_info, vha, 0xb044,
4341            "Firmware dump saved to temp buffer (%ld/%p %ld/%p).\n",
4342            vha->host_no, ha->md_tmplt_hdr, vha->host_no, ha->md_dump);
4343        ha->fw_dumped = 1;
4344        qla2x00_post_uevent_work(vha, QLA_UEVENT_CODE_FW_DUMP);
4345
4346md_failed:
4347        return rval;
4348}
4349
4350int
4351qla82xx_md_alloc(scsi_qla_host_t *vha)
4352{
4353        struct qla_hw_data *ha = vha->hw;
4354        int i, k;
4355        struct qla82xx_md_template_hdr *tmplt_hdr;
4356
4357        tmplt_hdr = (struct qla82xx_md_template_hdr *)ha->md_tmplt_hdr;
4358
4359        if (ql2xmdcapmask < 0x3 || ql2xmdcapmask > 0x7F) {
4360                ql2xmdcapmask = tmplt_hdr->capture_debug_level & 0xFF;
4361                ql_log(ql_log_info, vha, 0xb045,
4362                    "Forcing driver capture mask to firmware default capture mask: 0x%x.\n",
4363                    ql2xmdcapmask);
4364        }
4365
4366        for (i = 0x2, k = 1; (i & QLA82XX_DEFAULT_CAP_MASK); i <<= 1, k++) {
4367                if (i & ql2xmdcapmask)
4368                        ha->md_dump_size += tmplt_hdr->capture_size_array[k];
4369        }
4370
4371        if (ha->md_dump) {
4372                ql_log(ql_log_warn, vha, 0xb046,
4373                    "Firmware dump previously allocated.\n");
4374                return 1;
4375        }
4376
4377        ha->md_dump = vmalloc(ha->md_dump_size);
4378        if (ha->md_dump == NULL) {
4379                ql_log(ql_log_warn, vha, 0xb047,
4380                    "Unable to allocate memory for Minidump size "
4381                    "(0x%x).\n", ha->md_dump_size);
4382                return 1;
4383        }
4384        return 0;
4385}
4386
4387void
4388qla82xx_md_free(scsi_qla_host_t *vha)
4389{
4390        struct qla_hw_data *ha = vha->hw;
4391
4392        /* Release the template header allocated */
4393        if (ha->md_tmplt_hdr) {
4394                ql_log(ql_log_info, vha, 0xb048,
4395                    "Free MiniDump template: %p, size (%d KB)\n",
4396                    ha->md_tmplt_hdr, ha->md_template_size / 1024);
4397                dma_free_coherent(&ha->pdev->dev, ha->md_template_size,
4398                    ha->md_tmplt_hdr, ha->md_tmplt_hdr_dma);
4399                ha->md_tmplt_hdr = NULL;
4400        }
4401
4402        /* Release the template data buffer allocated */
4403        if (ha->md_dump) {
4404                ql_log(ql_log_info, vha, 0xb049,
4405                    "Free MiniDump memory: %p, size (%d KB)\n",
4406                    ha->md_dump, ha->md_dump_size / 1024);
4407                vfree(ha->md_dump);
4408                ha->md_dump_size = 0;
4409                ha->md_dump = NULL;
4410        }
4411}
4412
4413void
4414qla82xx_md_prep(scsi_qla_host_t *vha)
4415{
4416        struct qla_hw_data *ha = vha->hw;
4417        int rval;
4418
4419        /* Get Minidump template size */
4420        rval = qla82xx_md_get_template_size(vha);
4421        if (rval == QLA_SUCCESS) {
4422                ql_log(ql_log_info, vha, 0xb04a,
4423                    "MiniDump Template size obtained (%d KB)\n",
4424                    ha->md_template_size / 1024);
4425
4426                /* Get Minidump template */
4427                if (IS_QLA8044(ha))
4428                        rval = qla8044_md_get_template(vha);
4429                else
4430                        rval = qla82xx_md_get_template(vha);
4431
4432                if (rval == QLA_SUCCESS) {
4433                        ql_dbg(ql_dbg_p3p, vha, 0xb04b,
4434                            "MiniDump Template obtained\n");
4435
4436                        /* Allocate memory for minidump */
4437                        rval = qla82xx_md_alloc(vha);
4438                        if (rval == QLA_SUCCESS)
4439                                ql_log(ql_log_info, vha, 0xb04c,
4440                                    "MiniDump memory allocated (%d KB)\n",
4441                                    ha->md_dump_size / 1024);
4442                        else {
4443                                ql_log(ql_log_info, vha, 0xb04d,
4444                                    "Free MiniDump template: %p, size: (%d KB)\n",
4445                                    ha->md_tmplt_hdr,
4446                                    ha->md_template_size / 1024);
4447                                dma_free_coherent(&ha->pdev->dev,
4448                                    ha->md_template_size,
4449                                    ha->md_tmplt_hdr, ha->md_tmplt_hdr_dma);
4450                                ha->md_tmplt_hdr = NULL;
4451                        }
4452
4453                }
4454        }
4455}
4456
4457int
4458qla82xx_beacon_on(struct scsi_qla_host *vha)
4459{
4460
4461        int rval;
4462        struct qla_hw_data *ha = vha->hw;
4463        qla82xx_idc_lock(ha);
4464        rval = qla82xx_mbx_beacon_ctl(vha, 1);
4465
4466        if (rval) {
4467                ql_log(ql_log_warn, vha, 0xb050,
4468                    "mbx set led config failed in %s\n", __func__);
4469                goto exit;
4470        }
4471        ha->beacon_blink_led = 1;
4472exit:
4473        qla82xx_idc_unlock(ha);
4474        return rval;
4475}
4476
4477int
4478qla82xx_beacon_off(struct scsi_qla_host *vha)
4479{
4480
4481        int rval;
4482        struct qla_hw_data *ha = vha->hw;
4483        qla82xx_idc_lock(ha);
4484        rval = qla82xx_mbx_beacon_ctl(vha, 0);
4485
4486        if (rval) {
4487                ql_log(ql_log_warn, vha, 0xb051,
4488                    "mbx set led config failed in %s\n", __func__);
4489                goto exit;
4490        }
4491        ha->beacon_blink_led = 0;
4492exit:
4493        qla82xx_idc_unlock(ha);
4494        return rval;
4495}
4496
4497void
4498qla82xx_fw_dump(scsi_qla_host_t *vha, int hardware_locked)
4499{
4500        struct qla_hw_data *ha = vha->hw;
4501
4502        if (!ha->allow_cna_fw_dump)
4503                return;
4504
4505        scsi_block_requests(vha->host);
4506        ha->flags.isp82xx_no_md_cap = 1;
4507        qla82xx_idc_lock(ha);
4508        qla82xx_set_reset_owner(vha);
4509        qla82xx_idc_unlock(ha);
4510        qla2x00_wait_for_chip_reset(vha);
4511        scsi_unblock_requests(vha->host);
4512}
4513