linux/drivers/scsi/qla2xxx/qla_nx.c
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   1/*
   2 * QLogic Fibre Channel HBA Driver
   3 * Copyright (c)  2003-2011 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];
  39int 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
 105struct 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 */
 265unsigned 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 */
 333char *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' is offset from CRB space in 128M pci map
 351 * Out: 'off' 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)
 356{
 357        u32 win_read;
 358        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 359
 360        ha->crb_win = CRB_HI(*off);
 361        writel(ha->crb_win,
 362                (void *)(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((void *)(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);
 373        }
 374        *off = (*off & 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)
 420{
 421        struct crb_128M_2M_sub_block_map *m;
 422
 423        if (*off >= QLA82XX_CRB_MAX)
 424                return -1;
 425
 426        if (*off >= QLA82XX_PCI_CAMQM && (*off < QLA82XX_PCI_CAMQM_2M_END)) {
 427                *off = (*off - QLA82XX_PCI_CAMQM) +
 428                    QLA82XX_PCI_CAMQM_2M_BASE + ha->nx_pcibase;
 429                return 0;
 430        }
 431
 432        if (*off < QLA82XX_PCI_CRBSPACE)
 433                return -1;
 434
 435        *off -= QLA82XX_PCI_CRBSPACE;
 436
 437        /* Try direct map */
 438        m = &crb_128M_2M_map[CRB_BLK(*off)].sub_block[CRB_SUBBLK(*off)];
 439
 440        if (m->valid && (m->start_128M <= *off) && (m->end_128M > *off)) {
 441                *off = *off + m->start_2M - m->start_128M + ha->nx_pcibase;
 442                return 0;
 443        }
 444        /* Not in direct map, use crb window */
 445        return 1;
 446}
 447
 448#define CRB_WIN_LOCK_TIMEOUT 100000000
 449static int qla82xx_crb_win_lock(struct qla_hw_data *ha)
 450{
 451        int done = 0, timeout = 0;
 452
 453        while (!done) {
 454                /* acquire semaphore3 from PCI HW block */
 455                done = qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_LOCK));
 456                if (done == 1)
 457                        break;
 458                if (timeout >= CRB_WIN_LOCK_TIMEOUT)
 459                        return -1;
 460                timeout++;
 461        }
 462        qla82xx_wr_32(ha, QLA82XX_CRB_WIN_LOCK_ID, ha->portnum);
 463        return 0;
 464}
 465
 466int
 467qla82xx_wr_32(struct qla_hw_data *ha, ulong off, u32 data)
 468{
 469        unsigned long flags = 0;
 470        int rv;
 471
 472        rv = qla82xx_pci_get_crb_addr_2M(ha, &off);
 473
 474        BUG_ON(rv == -1);
 475
 476        if (rv == 1) {
 477                write_lock_irqsave(&ha->hw_lock, flags);
 478                qla82xx_crb_win_lock(ha);
 479                qla82xx_pci_set_crbwindow_2M(ha, &off);
 480        }
 481
 482        writel(data, (void __iomem *)off);
 483
 484        if (rv == 1) {
 485                qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_UNLOCK));
 486                write_unlock_irqrestore(&ha->hw_lock, flags);
 487        }
 488        return 0;
 489}
 490
 491int
 492qla82xx_rd_32(struct qla_hw_data *ha, ulong off)
 493{
 494        unsigned long flags = 0;
 495        int rv;
 496        u32 data;
 497
 498        rv = qla82xx_pci_get_crb_addr_2M(ha, &off);
 499
 500        BUG_ON(rv == -1);
 501
 502        if (rv == 1) {
 503                write_lock_irqsave(&ha->hw_lock, flags);
 504                qla82xx_crb_win_lock(ha);
 505                qla82xx_pci_set_crbwindow_2M(ha, &off);
 506        }
 507        data = RD_REG_DWORD((void __iomem *)off);
 508
 509        if (rv == 1) {
 510                qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_UNLOCK));
 511                write_unlock_irqrestore(&ha->hw_lock, flags);
 512        }
 513        return data;
 514}
 515
 516#define IDC_LOCK_TIMEOUT 100000000
 517int qla82xx_idc_lock(struct qla_hw_data *ha)
 518{
 519        int i;
 520        int done = 0, timeout = 0;
 521
 522        while (!done) {
 523                /* acquire semaphore5 from PCI HW block */
 524                done = qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM5_LOCK));
 525                if (done == 1)
 526                        break;
 527                if (timeout >= IDC_LOCK_TIMEOUT)
 528                        return -1;
 529
 530                timeout++;
 531
 532                /* Yield CPU */
 533                if (!in_interrupt())
 534                        schedule();
 535                else {
 536                        for (i = 0; i < 20; i++)
 537                                cpu_relax();
 538                }
 539        }
 540
 541        return 0;
 542}
 543
 544void qla82xx_idc_unlock(struct qla_hw_data *ha)
 545{
 546        qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM5_UNLOCK));
 547}
 548
 549/*  PCI Windowing for DDR regions.  */
 550#define QLA82XX_ADDR_IN_RANGE(addr, low, high) \
 551        (((addr) <= (high)) && ((addr) >= (low)))
 552/*
 553 * check memory access boundary.
 554 * used by test agent. support ddr access only for now
 555 */
 556static unsigned long
 557qla82xx_pci_mem_bound_check(struct qla_hw_data *ha,
 558        unsigned long long addr, int size)
 559{
 560        if (!QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_DDR_NET,
 561                QLA82XX_ADDR_DDR_NET_MAX) ||
 562                !QLA82XX_ADDR_IN_RANGE(addr + size - 1, QLA82XX_ADDR_DDR_NET,
 563                QLA82XX_ADDR_DDR_NET_MAX) ||
 564                ((size != 1) && (size != 2) && (size != 4) && (size != 8)))
 565                        return 0;
 566        else
 567                return 1;
 568}
 569
 570int qla82xx_pci_set_window_warning_count;
 571
 572static unsigned long
 573qla82xx_pci_set_window(struct qla_hw_data *ha, unsigned long long addr)
 574{
 575        int window;
 576        u32 win_read;
 577        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 578
 579        if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_DDR_NET,
 580                QLA82XX_ADDR_DDR_NET_MAX)) {
 581                /* DDR network side */
 582                window = MN_WIN(addr);
 583                ha->ddr_mn_window = window;
 584                qla82xx_wr_32(ha,
 585                        ha->mn_win_crb | QLA82XX_PCI_CRBSPACE, window);
 586                win_read = qla82xx_rd_32(ha,
 587                        ha->mn_win_crb | QLA82XX_PCI_CRBSPACE);
 588                if ((win_read << 17) != window) {
 589                        ql_dbg(ql_dbg_p3p, vha, 0xb003,
 590                            "%s: Written MNwin (0x%x) != Read MNwin (0x%x).\n",
 591                            __func__, window, win_read);
 592                }
 593                addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_DDR_NET;
 594        } else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_OCM0,
 595                QLA82XX_ADDR_OCM0_MAX)) {
 596                unsigned int temp1;
 597                if ((addr & 0x00ff800) == 0xff800) {
 598                        ql_log(ql_log_warn, vha, 0xb004,
 599                            "%s: QM access not handled.\n", __func__);
 600                        addr = -1UL;
 601                }
 602                window = OCM_WIN(addr);
 603                ha->ddr_mn_window = window;
 604                qla82xx_wr_32(ha,
 605                        ha->mn_win_crb | QLA82XX_PCI_CRBSPACE, window);
 606                win_read = qla82xx_rd_32(ha,
 607                        ha->mn_win_crb | QLA82XX_PCI_CRBSPACE);
 608                temp1 = ((window & 0x1FF) << 7) |
 609                    ((window & 0x0FFFE0000) >> 17);
 610                if (win_read != temp1) {
 611                        ql_log(ql_log_warn, vha, 0xb005,
 612                            "%s: Written OCMwin (0x%x) != Read OCMwin (0x%x).\n",
 613                            __func__, temp1, win_read);
 614                }
 615                addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_OCM0_2M;
 616
 617        } else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_QDR_NET,
 618                QLA82XX_P3_ADDR_QDR_NET_MAX)) {
 619                /* QDR network side */
 620                window = MS_WIN(addr);
 621                ha->qdr_sn_window = window;
 622                qla82xx_wr_32(ha,
 623                        ha->ms_win_crb | QLA82XX_PCI_CRBSPACE, window);
 624                win_read = qla82xx_rd_32(ha,
 625                        ha->ms_win_crb | QLA82XX_PCI_CRBSPACE);
 626                if (win_read != window) {
 627                        ql_log(ql_log_warn, vha, 0xb006,
 628                            "%s: Written MSwin (0x%x) != Read MSwin (0x%x).\n",
 629                            __func__, window, win_read);
 630                }
 631                addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_QDR_NET;
 632        } else {
 633                /*
 634                 * peg gdb frequently accesses memory that doesn't exist,
 635                 * this limits the chit chat so debugging isn't slowed down.
 636                 */
 637                if ((qla82xx_pci_set_window_warning_count++ < 8) ||
 638                    (qla82xx_pci_set_window_warning_count%64 == 0)) {
 639                        ql_log(ql_log_warn, vha, 0xb007,
 640                            "%s: Warning:%s Unknown address range!.\n",
 641                            __func__, QLA2XXX_DRIVER_NAME);
 642                }
 643                addr = -1UL;
 644        }
 645        return addr;
 646}
 647
 648/* check if address is in the same windows as the previous access */
 649static int qla82xx_pci_is_same_window(struct qla_hw_data *ha,
 650        unsigned long long addr)
 651{
 652        int                     window;
 653        unsigned long long      qdr_max;
 654
 655        qdr_max = QLA82XX_P3_ADDR_QDR_NET_MAX;
 656
 657        /* DDR network side */
 658        if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_DDR_NET,
 659                QLA82XX_ADDR_DDR_NET_MAX))
 660                BUG();
 661        else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_OCM0,
 662                QLA82XX_ADDR_OCM0_MAX))
 663                return 1;
 664        else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_OCM1,
 665                QLA82XX_ADDR_OCM1_MAX))
 666                return 1;
 667        else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_QDR_NET, qdr_max)) {
 668                /* QDR network side */
 669                window = ((addr - QLA82XX_ADDR_QDR_NET) >> 22) & 0x3f;
 670                if (ha->qdr_sn_window == window)
 671                        return 1;
 672        }
 673        return 0;
 674}
 675
 676static int qla82xx_pci_mem_read_direct(struct qla_hw_data *ha,
 677        u64 off, void *data, int size)
 678{
 679        unsigned long   flags;
 680        void           *addr = NULL;
 681        int             ret = 0;
 682        u64             start;
 683        uint8_t         *mem_ptr = NULL;
 684        unsigned long   mem_base;
 685        unsigned long   mem_page;
 686        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 687
 688        write_lock_irqsave(&ha->hw_lock, flags);
 689
 690        /*
 691         * If attempting to access unknown address or straddle hw windows,
 692         * do not access.
 693         */
 694        start = qla82xx_pci_set_window(ha, off);
 695        if ((start == -1UL) ||
 696                (qla82xx_pci_is_same_window(ha, off + size - 1) == 0)) {
 697                write_unlock_irqrestore(&ha->hw_lock, flags);
 698                ql_log(ql_log_fatal, vha, 0xb008,
 699                    "%s out of bound pci memory "
 700                    "access, offset is 0x%llx.\n",
 701                    QLA2XXX_DRIVER_NAME, off);
 702                return -1;
 703        }
 704
 705        write_unlock_irqrestore(&ha->hw_lock, flags);
 706        mem_base = pci_resource_start(ha->pdev, 0);
 707        mem_page = start & PAGE_MASK;
 708        /* Map two pages whenever user tries to access addresses in two
 709        * consecutive pages.
 710        */
 711        if (mem_page != ((start + size - 1) & PAGE_MASK))
 712                mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE * 2);
 713        else
 714                mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE);
 715        if (mem_ptr == 0UL) {
 716                *(u8  *)data = 0;
 717                return -1;
 718        }
 719        addr = mem_ptr;
 720        addr += start & (PAGE_SIZE - 1);
 721        write_lock_irqsave(&ha->hw_lock, flags);
 722
 723        switch (size) {
 724        case 1:
 725                *(u8  *)data = readb(addr);
 726                break;
 727        case 2:
 728                *(u16 *)data = readw(addr);
 729                break;
 730        case 4:
 731                *(u32 *)data = readl(addr);
 732                break;
 733        case 8:
 734                *(u64 *)data = readq(addr);
 735                break;
 736        default:
 737                ret = -1;
 738                break;
 739        }
 740        write_unlock_irqrestore(&ha->hw_lock, flags);
 741
 742        if (mem_ptr)
 743                iounmap(mem_ptr);
 744        return ret;
 745}
 746
 747static int
 748qla82xx_pci_mem_write_direct(struct qla_hw_data *ha,
 749        u64 off, void *data, int size)
 750{
 751        unsigned long   flags;
 752        void           *addr = NULL;
 753        int             ret = 0;
 754        u64             start;
 755        uint8_t         *mem_ptr = NULL;
 756        unsigned long   mem_base;
 757        unsigned long   mem_page;
 758        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 759
 760        write_lock_irqsave(&ha->hw_lock, flags);
 761
 762        /*
 763         * If attempting to access unknown address or straddle hw windows,
 764         * do not access.
 765         */
 766        start = qla82xx_pci_set_window(ha, off);
 767        if ((start == -1UL) ||
 768                (qla82xx_pci_is_same_window(ha, off + size - 1) == 0)) {
 769                write_unlock_irqrestore(&ha->hw_lock, flags);
 770                ql_log(ql_log_fatal, vha, 0xb009,
 771                    "%s out of bount memory "
 772                    "access, offset is 0x%llx.\n",
 773                    QLA2XXX_DRIVER_NAME, off);
 774                return -1;
 775        }
 776
 777        write_unlock_irqrestore(&ha->hw_lock, flags);
 778        mem_base = pci_resource_start(ha->pdev, 0);
 779        mem_page = start & PAGE_MASK;
 780        /* Map two pages whenever user tries to access addresses in two
 781         * consecutive pages.
 782         */
 783        if (mem_page != ((start + size - 1) & PAGE_MASK))
 784                mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE*2);
 785        else
 786                mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE);
 787        if (mem_ptr == 0UL)
 788                return -1;
 789
 790        addr = mem_ptr;
 791        addr += start & (PAGE_SIZE - 1);
 792        write_lock_irqsave(&ha->hw_lock, flags);
 793
 794        switch (size) {
 795        case 1:
 796                writeb(*(u8  *)data, addr);
 797                break;
 798        case 2:
 799                writew(*(u16 *)data, addr);
 800                break;
 801        case 4:
 802                writel(*(u32 *)data, addr);
 803                break;
 804        case 8:
 805                writeq(*(u64 *)data, addr);
 806                break;
 807        default:
 808                ret = -1;
 809                break;
 810        }
 811        write_unlock_irqrestore(&ha->hw_lock, flags);
 812        if (mem_ptr)
 813                iounmap(mem_ptr);
 814        return ret;
 815}
 816
 817#define MTU_FUDGE_FACTOR 100
 818static unsigned long
 819qla82xx_decode_crb_addr(unsigned long addr)
 820{
 821        int i;
 822        unsigned long base_addr, offset, pci_base;
 823
 824        if (!qla82xx_crb_table_initialized)
 825                qla82xx_crb_addr_transform_setup();
 826
 827        pci_base = ADDR_ERROR;
 828        base_addr = addr & 0xfff00000;
 829        offset = addr & 0x000fffff;
 830
 831        for (i = 0; i < MAX_CRB_XFORM; i++) {
 832                if (crb_addr_xform[i] == base_addr) {
 833                        pci_base = i << 20;
 834                        break;
 835                }
 836        }
 837        if (pci_base == ADDR_ERROR)
 838                return pci_base;
 839        return pci_base + offset;
 840}
 841
 842static long rom_max_timeout = 100;
 843static long qla82xx_rom_lock_timeout = 100;
 844
 845static int
 846qla82xx_rom_lock(struct qla_hw_data *ha)
 847{
 848        int done = 0, timeout = 0;
 849
 850        while (!done) {
 851                /* acquire semaphore2 from PCI HW block */
 852                done = qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_LOCK));
 853                if (done == 1)
 854                        break;
 855                if (timeout >= qla82xx_rom_lock_timeout)
 856                        return -1;
 857                timeout++;
 858        }
 859        qla82xx_wr_32(ha, QLA82XX_ROM_LOCK_ID, ROM_LOCK_DRIVER);
 860        return 0;
 861}
 862
 863static void
 864qla82xx_rom_unlock(struct qla_hw_data *ha)
 865{
 866        qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_UNLOCK));
 867}
 868
 869static int
 870qla82xx_wait_rom_busy(struct qla_hw_data *ha)
 871{
 872        long timeout = 0;
 873        long done = 0 ;
 874        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 875
 876        while (done == 0) {
 877                done = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_STATUS);
 878                done &= 4;
 879                timeout++;
 880                if (timeout >= rom_max_timeout) {
 881                        ql_dbg(ql_dbg_p3p, vha, 0xb00a,
 882                            "%s: Timeout reached waiting for rom busy.\n",
 883                            QLA2XXX_DRIVER_NAME);
 884                        return -1;
 885                }
 886        }
 887        return 0;
 888}
 889
 890static int
 891qla82xx_wait_rom_done(struct qla_hw_data *ha)
 892{
 893        long timeout = 0;
 894        long done = 0 ;
 895        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 896
 897        while (done == 0) {
 898                done = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_STATUS);
 899                done &= 2;
 900                timeout++;
 901                if (timeout >= rom_max_timeout) {
 902                        ql_dbg(ql_dbg_p3p, vha, 0xb00b,
 903                            "%s: Timeout reached waiting for rom done.\n",
 904                            QLA2XXX_DRIVER_NAME);
 905                        return -1;
 906                }
 907        }
 908        return 0;
 909}
 910
 911static int
 912qla82xx_do_rom_fast_read(struct qla_hw_data *ha, int addr, int *valp)
 913{
 914        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 915
 916        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ADDRESS, addr);
 917        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
 918        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 3);
 919        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, 0xb);
 920        qla82xx_wait_rom_busy(ha);
 921        if (qla82xx_wait_rom_done(ha)) {
 922                ql_log(ql_log_fatal, vha, 0x00ba,
 923                    "Error waiting for rom done.\n");
 924                return -1;
 925        }
 926        /* Reset abyte_cnt and dummy_byte_cnt */
 927        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
 928        udelay(10);
 929        cond_resched();
 930        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 0);
 931        *valp = qla82xx_rd_32(ha, QLA82XX_ROMUSB_ROM_RDATA);
 932        return 0;
 933}
 934
 935static int
 936qla82xx_rom_fast_read(struct qla_hw_data *ha, int addr, int *valp)
 937{
 938        int ret, loops = 0;
 939        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 940
 941        while ((qla82xx_rom_lock(ha) != 0) && (loops < 50000)) {
 942                udelay(100);
 943                schedule();
 944                loops++;
 945        }
 946        if (loops >= 50000) {
 947                ql_log(ql_log_fatal, vha, 0x00b9,
 948                    "Failed to aquire SEM2 lock.\n");
 949                return -1;
 950        }
 951        ret = qla82xx_do_rom_fast_read(ha, addr, valp);
 952        qla82xx_rom_unlock(ha);
 953        return ret;
 954}
 955
 956static int
 957qla82xx_read_status_reg(struct qla_hw_data *ha, uint32_t *val)
 958{
 959        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 960        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_RDSR);
 961        qla82xx_wait_rom_busy(ha);
 962        if (qla82xx_wait_rom_done(ha)) {
 963                ql_log(ql_log_warn, vha, 0xb00c,
 964                    "Error waiting for rom done.\n");
 965                return -1;
 966        }
 967        *val = qla82xx_rd_32(ha, QLA82XX_ROMUSB_ROM_RDATA);
 968        return 0;
 969}
 970
 971static int
 972qla82xx_flash_wait_write_finish(struct qla_hw_data *ha)
 973{
 974        long timeout = 0;
 975        uint32_t done = 1 ;
 976        uint32_t val;
 977        int ret = 0;
 978        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 979
 980        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 0);
 981        while ((done != 0) && (ret == 0)) {
 982                ret = qla82xx_read_status_reg(ha, &val);
 983                done = val & 1;
 984                timeout++;
 985                udelay(10);
 986                cond_resched();
 987                if (timeout >= 50000) {
 988                        ql_log(ql_log_warn, vha, 0xb00d,
 989                            "Timeout reached waiting for write finish.\n");
 990                        return -1;
 991                }
 992        }
 993        return ret;
 994}
 995
 996static int
 997qla82xx_flash_set_write_enable(struct qla_hw_data *ha)
 998{
 999        uint32_t val;
1000        qla82xx_wait_rom_busy(ha);
1001        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 0);
1002        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_WREN);
1003        qla82xx_wait_rom_busy(ha);
1004        if (qla82xx_wait_rom_done(ha))
1005                return -1;
1006        if (qla82xx_read_status_reg(ha, &val) != 0)
1007                return -1;
1008        if ((val & 2) != 2)
1009                return -1;
1010        return 0;
1011}
1012
1013static int
1014qla82xx_write_status_reg(struct qla_hw_data *ha, uint32_t val)
1015{
1016        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1017        if (qla82xx_flash_set_write_enable(ha))
1018                return -1;
1019        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_WDATA, val);
1020        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, 0x1);
1021        if (qla82xx_wait_rom_done(ha)) {
1022                ql_log(ql_log_warn, vha, 0xb00e,
1023                    "Error waiting for rom done.\n");
1024                return -1;
1025        }
1026        return qla82xx_flash_wait_write_finish(ha);
1027}
1028
1029static int
1030qla82xx_write_disable_flash(struct qla_hw_data *ha)
1031{
1032        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1033        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_WRDI);
1034        if (qla82xx_wait_rom_done(ha)) {
1035                ql_log(ql_log_warn, vha, 0xb00f,
1036                    "Error waiting for rom done.\n");
1037                return -1;
1038        }
1039        return 0;
1040}
1041
1042static int
1043ql82xx_rom_lock_d(struct qla_hw_data *ha)
1044{
1045        int loops = 0;
1046        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1047
1048        while ((qla82xx_rom_lock(ha) != 0) && (loops < 50000)) {
1049                udelay(100);
1050                cond_resched();
1051                loops++;
1052        }
1053        if (loops >= 50000) {
1054                ql_log(ql_log_warn, vha, 0xb010,
1055                    "ROM lock failed.\n");
1056                return -1;
1057        }
1058        return 0;
1059}
1060
1061static int
1062qla82xx_write_flash_dword(struct qla_hw_data *ha, uint32_t flashaddr,
1063        uint32_t data)
1064{
1065        int ret = 0;
1066        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1067
1068        ret = ql82xx_rom_lock_d(ha);
1069        if (ret < 0) {
1070                ql_log(ql_log_warn, vha, 0xb011,
1071                    "ROM lock failed.\n");
1072                return ret;
1073        }
1074
1075        if (qla82xx_flash_set_write_enable(ha))
1076                goto done_write;
1077
1078        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_WDATA, data);
1079        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ADDRESS, flashaddr);
1080        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 3);
1081        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_PP);
1082        qla82xx_wait_rom_busy(ha);
1083        if (qla82xx_wait_rom_done(ha)) {
1084                ql_log(ql_log_warn, vha, 0xb012,
1085                    "Error waiting for rom done.\n");
1086                ret = -1;
1087                goto done_write;
1088        }
1089
1090        ret = qla82xx_flash_wait_write_finish(ha);
1091
1092done_write:
1093        qla82xx_rom_unlock(ha);
1094        return ret;
1095}
1096
1097/* This routine does CRB initialize sequence
1098 *  to put the ISP into operational state
1099 */
1100static int
1101qla82xx_pinit_from_rom(scsi_qla_host_t *vha)
1102{
1103        int addr, val;
1104        int i ;
1105        struct crb_addr_pair *buf;
1106        unsigned long off;
1107        unsigned offset, n;
1108        struct qla_hw_data *ha = vha->hw;
1109
1110        struct crb_addr_pair {
1111                long addr;
1112                long data;
1113        };
1114
1115        /* Halt all the indiviual PEGs and other blocks of the ISP */
1116        qla82xx_rom_lock(ha);
1117
1118        /* disable all I2Q */
1119        qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x10, 0x0);
1120        qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x14, 0x0);
1121        qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x18, 0x0);
1122        qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x1c, 0x0);
1123        qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x20, 0x0);
1124        qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x24, 0x0);
1125
1126        /* disable all niu interrupts */
1127        qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x40, 0xff);
1128        /* disable xge rx/tx */
1129        qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x70000, 0x00);
1130        /* disable xg1 rx/tx */
1131        qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x80000, 0x00);
1132        /* disable sideband mac */
1133        qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x90000, 0x00);
1134        /* disable ap0 mac */
1135        qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0xa0000, 0x00);
1136        /* disable ap1 mac */
1137        qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0xb0000, 0x00);
1138
1139        /* halt sre */
1140        val = qla82xx_rd_32(ha, QLA82XX_CRB_SRE + 0x1000);
1141        qla82xx_wr_32(ha, QLA82XX_CRB_SRE + 0x1000, val & (~(0x1)));
1142
1143        /* halt epg */
1144        qla82xx_wr_32(ha, QLA82XX_CRB_EPG + 0x1300, 0x1);
1145
1146        /* halt timers */
1147        qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x0, 0x0);
1148        qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x8, 0x0);
1149        qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x10, 0x0);
1150        qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x18, 0x0);
1151        qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x100, 0x0);
1152        qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x200, 0x0);
1153
1154        /* halt pegs */
1155        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x3c, 1);
1156        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1 + 0x3c, 1);
1157        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2 + 0x3c, 1);
1158        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3 + 0x3c, 1);
1159        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_4 + 0x3c, 1);
1160        msleep(20);
1161
1162        /* big hammer */
1163        if (test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
1164                /* don't reset CAM block on reset */
1165                qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xfeffffff);
1166        else
1167                qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xffffffff);
1168        qla82xx_rom_unlock(ha);
1169
1170        /* Read the signature value from the flash.
1171         * Offset 0: Contain signature (0xcafecafe)
1172         * Offset 4: Offset and number of addr/value pairs
1173         * that present in CRB initialize sequence
1174         */
1175        if (qla82xx_rom_fast_read(ha, 0, &n) != 0 || n != 0xcafecafeUL ||
1176            qla82xx_rom_fast_read(ha, 4, &n) != 0) {
1177                ql_log(ql_log_fatal, vha, 0x006e,
1178                    "Error Reading crb_init area: n: %08x.\n", n);
1179                return -1;
1180        }
1181
1182        /* Offset in flash = lower 16 bits
1183         * Number of enteries = upper 16 bits
1184         */
1185        offset = n & 0xffffU;
1186        n = (n >> 16) & 0xffffU;
1187
1188        /* number of addr/value pair should not exceed 1024 enteries */
1189        if (n  >= 1024) {
1190                ql_log(ql_log_fatal, vha, 0x0071,
1191                    "Card flash not initialized:n=0x%x.\n", n);
1192                return -1;
1193        }
1194
1195        ql_log(ql_log_info, vha, 0x0072,
1196            "%d CRB init values found in ROM.\n", n);
1197
1198        buf = kmalloc(n * sizeof(struct crb_addr_pair), GFP_KERNEL);
1199        if (buf == NULL) {
1200                ql_log(ql_log_fatal, vha, 0x010c,
1201                    "Unable to allocate memory.\n");
1202                return -1;
1203        }
1204
1205        for (i = 0; i < n; i++) {
1206                if (qla82xx_rom_fast_read(ha, 8*i + 4*offset, &val) != 0 ||
1207                    qla82xx_rom_fast_read(ha, 8*i + 4*offset + 4, &addr) != 0) {
1208                        kfree(buf);
1209                        return -1;
1210                }
1211
1212                buf[i].addr = addr;
1213                buf[i].data = val;
1214        }
1215
1216        for (i = 0; i < n; i++) {
1217                /* Translate internal CRB initialization
1218                 * address to PCI bus address
1219                 */
1220                off = qla82xx_decode_crb_addr((unsigned long)buf[i].addr) +
1221                    QLA82XX_PCI_CRBSPACE;
1222                /* Not all CRB  addr/value pair to be written,
1223                 * some of them are skipped
1224                 */
1225
1226                /* skipping cold reboot MAGIC */
1227                if (off == QLA82XX_CAM_RAM(0x1fc))
1228                        continue;
1229
1230                /* do not reset PCI */
1231                if (off == (ROMUSB_GLB + 0xbc))
1232                        continue;
1233
1234                /* skip core clock, so that firmware can increase the clock */
1235                if (off == (ROMUSB_GLB + 0xc8))
1236                        continue;
1237
1238                /* skip the function enable register */
1239                if (off == QLA82XX_PCIE_REG(PCIE_SETUP_FUNCTION))
1240                        continue;
1241
1242                if (off == QLA82XX_PCIE_REG(PCIE_SETUP_FUNCTION2))
1243                        continue;
1244
1245                if ((off & 0x0ff00000) == QLA82XX_CRB_SMB)
1246                        continue;
1247
1248                if ((off & 0x0ff00000) == QLA82XX_CRB_DDR_NET)
1249                        continue;
1250
1251                if (off == ADDR_ERROR) {
1252                        ql_log(ql_log_fatal, vha, 0x0116,
1253                            "Unknow addr: 0x%08lx.\n", buf[i].addr);
1254                        continue;
1255                }
1256
1257                qla82xx_wr_32(ha, off, buf[i].data);
1258
1259                /* ISP requires much bigger delay to settle down,
1260                 * else crb_window returns 0xffffffff
1261                 */
1262                if (off == QLA82XX_ROMUSB_GLB_SW_RESET)
1263                        msleep(1000);
1264
1265                /* ISP requires millisec delay between
1266                 * successive CRB register updation
1267                 */
1268                msleep(1);
1269        }
1270
1271        kfree(buf);
1272
1273        /* Resetting the data and instruction cache */
1274        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0xec, 0x1e);
1275        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0x4c, 8);
1276        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_I+0x4c, 8);
1277
1278        /* Clear all protocol processing engines */
1279        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0x8, 0);
1280        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0xc, 0);
1281        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0x8, 0);
1282        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0xc, 0);
1283        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0x8, 0);
1284        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0xc, 0);
1285        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0x8, 0);
1286        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0xc, 0);
1287        return 0;
1288}
1289
1290static int
1291qla82xx_pci_mem_write_2M(struct qla_hw_data *ha,
1292                u64 off, void *data, int size)
1293{
1294        int i, j, ret = 0, loop, sz[2], off0;
1295        int scale, shift_amount, startword;
1296        uint32_t temp;
1297        uint64_t off8, mem_crb, tmpw, word[2] = {0, 0};
1298
1299        /*
1300         * If not MN, go check for MS or invalid.
1301         */
1302        if (off >= QLA82XX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX)
1303                mem_crb = QLA82XX_CRB_QDR_NET;
1304        else {
1305                mem_crb = QLA82XX_CRB_DDR_NET;
1306                if (qla82xx_pci_mem_bound_check(ha, off, size) == 0)
1307                        return qla82xx_pci_mem_write_direct(ha,
1308                            off, data, size);
1309        }
1310
1311        off0 = off & 0x7;
1312        sz[0] = (size < (8 - off0)) ? size : (8 - off0);
1313        sz[1] = size - sz[0];
1314
1315        off8 = off & 0xfffffff0;
1316        loop = (((off & 0xf) + size - 1) >> 4) + 1;
1317        shift_amount = 4;
1318        scale = 2;
1319        startword = (off & 0xf)/8;
1320
1321        for (i = 0; i < loop; i++) {
1322                if (qla82xx_pci_mem_read_2M(ha, off8 +
1323                    (i << shift_amount), &word[i * scale], 8))
1324                        return -1;
1325        }
1326
1327        switch (size) {
1328        case 1:
1329                tmpw = *((uint8_t *)data);
1330                break;
1331        case 2:
1332                tmpw = *((uint16_t *)data);
1333                break;
1334        case 4:
1335                tmpw = *((uint32_t *)data);
1336                break;
1337        case 8:
1338        default:
1339                tmpw = *((uint64_t *)data);
1340                break;
1341        }
1342
1343        if (sz[0] == 8) {
1344                word[startword] = tmpw;
1345        } else {
1346                word[startword] &=
1347                        ~((~(~0ULL << (sz[0] * 8))) << (off0 * 8));
1348                word[startword] |= tmpw << (off0 * 8);
1349        }
1350        if (sz[1] != 0) {
1351                word[startword+1] &= ~(~0ULL << (sz[1] * 8));
1352                word[startword+1] |= tmpw >> (sz[0] * 8);
1353        }
1354
1355        for (i = 0; i < loop; i++) {
1356                temp = off8 + (i << shift_amount);
1357                qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_LO, temp);
1358                temp = 0;
1359                qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_HI, temp);
1360                temp = word[i * scale] & 0xffffffff;
1361                qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_LO, temp);
1362                temp = (word[i * scale] >> 32) & 0xffffffff;
1363                qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_HI, temp);
1364                temp = word[i*scale + 1] & 0xffffffff;
1365                qla82xx_wr_32(ha, mem_crb +
1366                    MIU_TEST_AGT_WRDATA_UPPER_LO, temp);
1367                temp = (word[i*scale + 1] >> 32) & 0xffffffff;
1368                qla82xx_wr_32(ha, mem_crb +
1369                    MIU_TEST_AGT_WRDATA_UPPER_HI, temp);
1370
1371                temp = MIU_TA_CTL_ENABLE | MIU_TA_CTL_WRITE;
1372                qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1373                temp = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE | MIU_TA_CTL_WRITE;
1374                qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1375
1376                for (j = 0; j < MAX_CTL_CHECK; j++) {
1377                        temp = qla82xx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL);
1378                        if ((temp & MIU_TA_CTL_BUSY) == 0)
1379                                break;
1380                }
1381
1382                if (j >= MAX_CTL_CHECK) {
1383                        if (printk_ratelimit())
1384                                dev_err(&ha->pdev->dev,
1385                                    "failed to write through agent.\n");
1386                        ret = -1;
1387                        break;
1388                }
1389        }
1390
1391        return ret;
1392}
1393
1394static int
1395qla82xx_fw_load_from_flash(struct qla_hw_data *ha)
1396{
1397        int  i;
1398        long size = 0;
1399        long flashaddr = ha->flt_region_bootload << 2;
1400        long memaddr = BOOTLD_START;
1401        u64 data;
1402        u32 high, low;
1403        size = (IMAGE_START - BOOTLD_START) / 8;
1404
1405        for (i = 0; i < size; i++) {
1406                if ((qla82xx_rom_fast_read(ha, flashaddr, (int *)&low)) ||
1407                    (qla82xx_rom_fast_read(ha, flashaddr + 4, (int *)&high))) {
1408                        return -1;
1409                }
1410                data = ((u64)high << 32) | low ;
1411                qla82xx_pci_mem_write_2M(ha, memaddr, &data, 8);
1412                flashaddr += 8;
1413                memaddr += 8;
1414
1415                if (i % 0x1000 == 0)
1416                        msleep(1);
1417        }
1418        udelay(100);
1419        read_lock(&ha->hw_lock);
1420        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x18, 0x1020);
1421        qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0x80001e);
1422        read_unlock(&ha->hw_lock);
1423        return 0;
1424}
1425
1426int
1427qla82xx_pci_mem_read_2M(struct qla_hw_data *ha,
1428                u64 off, void *data, int size)
1429{
1430        int i, j = 0, k, start, end, loop, sz[2], off0[2];
1431        int           shift_amount;
1432        uint32_t      temp;
1433        uint64_t      off8, val, mem_crb, word[2] = {0, 0};
1434
1435        /*
1436         * If not MN, go check for MS or invalid.
1437         */
1438
1439        if (off >= QLA82XX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX)
1440                mem_crb = QLA82XX_CRB_QDR_NET;
1441        else {
1442                mem_crb = QLA82XX_CRB_DDR_NET;
1443                if (qla82xx_pci_mem_bound_check(ha, off, size) == 0)
1444                        return qla82xx_pci_mem_read_direct(ha,
1445                            off, data, size);
1446        }
1447
1448        off8 = off & 0xfffffff0;
1449        off0[0] = off & 0xf;
1450        sz[0] = (size < (16 - off0[0])) ? size : (16 - off0[0]);
1451        shift_amount = 4;
1452        loop = ((off0[0] + size - 1) >> shift_amount) + 1;
1453        off0[1] = 0;
1454        sz[1] = size - sz[0];
1455
1456        for (i = 0; i < loop; i++) {
1457                temp = off8 + (i << shift_amount);
1458                qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_LO, temp);
1459                temp = 0;
1460                qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_HI, temp);
1461                temp = MIU_TA_CTL_ENABLE;
1462                qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1463                temp = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE;
1464                qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1465
1466                for (j = 0; j < MAX_CTL_CHECK; j++) {
1467                        temp = qla82xx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL);
1468                        if ((temp & MIU_TA_CTL_BUSY) == 0)
1469                                break;
1470                }
1471
1472                if (j >= MAX_CTL_CHECK) {
1473                        if (printk_ratelimit())
1474                                dev_err(&ha->pdev->dev,
1475                                    "failed to read through agent.\n");
1476                        break;
1477                }
1478
1479                start = off0[i] >> 2;
1480                end   = (off0[i] + sz[i] - 1) >> 2;
1481                for (k = start; k <= end; k++) {
1482                        temp = qla82xx_rd_32(ha,
1483                                        mem_crb + MIU_TEST_AGT_RDDATA(k));
1484                        word[i] |= ((uint64_t)temp << (32 * (k & 1)));
1485                }
1486        }
1487
1488        if (j >= MAX_CTL_CHECK)
1489                return -1;
1490
1491        if ((off0[0] & 7) == 0) {
1492                val = word[0];
1493        } else {
1494                val = ((word[0] >> (off0[0] * 8)) & (~(~0ULL << (sz[0] * 8)))) |
1495                        ((word[1] & (~(~0ULL << (sz[1] * 8)))) << (sz[0] * 8));
1496        }
1497
1498        switch (size) {
1499        case 1:
1500                *(uint8_t  *)data = val;
1501                break;
1502        case 2:
1503                *(uint16_t *)data = val;
1504                break;
1505        case 4:
1506                *(uint32_t *)data = val;
1507                break;
1508        case 8:
1509                *(uint64_t *)data = val;
1510                break;
1511        }
1512        return 0;
1513}
1514
1515
1516static struct qla82xx_uri_table_desc *
1517qla82xx_get_table_desc(const u8 *unirom, int section)
1518{
1519        uint32_t i;
1520        struct qla82xx_uri_table_desc *directory =
1521                (struct qla82xx_uri_table_desc *)&unirom[0];
1522        __le32 offset;
1523        __le32 tab_type;
1524        __le32 entries = cpu_to_le32(directory->num_entries);
1525
1526        for (i = 0; i < entries; i++) {
1527                offset = cpu_to_le32(directory->findex) +
1528                    (i * cpu_to_le32(directory->entry_size));
1529                tab_type = cpu_to_le32(*((u32 *)&unirom[offset] + 8));
1530
1531                if (tab_type == section)
1532                        return (struct qla82xx_uri_table_desc *)&unirom[offset];
1533        }
1534
1535        return NULL;
1536}
1537
1538static struct qla82xx_uri_data_desc *
1539qla82xx_get_data_desc(struct qla_hw_data *ha,
1540        u32 section, u32 idx_offset)
1541{
1542        const u8 *unirom = ha->hablob->fw->data;
1543        int idx = cpu_to_le32(*((int *)&unirom[ha->file_prd_off] + idx_offset));
1544        struct qla82xx_uri_table_desc *tab_desc = NULL;
1545        __le32 offset;
1546
1547        tab_desc = qla82xx_get_table_desc(unirom, section);
1548        if (!tab_desc)
1549                return NULL;
1550
1551        offset = cpu_to_le32(tab_desc->findex) +
1552            (cpu_to_le32(tab_desc->entry_size) * idx);
1553
1554        return (struct qla82xx_uri_data_desc *)&unirom[offset];
1555}
1556
1557static u8 *
1558qla82xx_get_bootld_offset(struct qla_hw_data *ha)
1559{
1560        u32 offset = BOOTLD_START;
1561        struct qla82xx_uri_data_desc *uri_desc = NULL;
1562
1563        if (ha->fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
1564                uri_desc = qla82xx_get_data_desc(ha,
1565                    QLA82XX_URI_DIR_SECT_BOOTLD, QLA82XX_URI_BOOTLD_IDX_OFF);
1566                if (uri_desc)
1567                        offset = cpu_to_le32(uri_desc->findex);
1568        }
1569
1570        return (u8 *)&ha->hablob->fw->data[offset];
1571}
1572
1573static __le32
1574qla82xx_get_fw_size(struct qla_hw_data *ha)
1575{
1576        struct qla82xx_uri_data_desc *uri_desc = NULL;
1577
1578        if (ha->fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
1579                uri_desc =  qla82xx_get_data_desc(ha, QLA82XX_URI_DIR_SECT_FW,
1580                    QLA82XX_URI_FIRMWARE_IDX_OFF);
1581                if (uri_desc)
1582                        return cpu_to_le32(uri_desc->size);
1583        }
1584
1585        return cpu_to_le32(*(u32 *)&ha->hablob->fw->data[FW_SIZE_OFFSET]);
1586}
1587
1588static u8 *
1589qla82xx_get_fw_offs(struct qla_hw_data *ha)
1590{
1591        u32 offset = IMAGE_START;
1592        struct qla82xx_uri_data_desc *uri_desc = NULL;
1593
1594        if (ha->fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
1595                uri_desc = qla82xx_get_data_desc(ha, QLA82XX_URI_DIR_SECT_FW,
1596                        QLA82XX_URI_FIRMWARE_IDX_OFF);
1597                if (uri_desc)
1598                        offset = cpu_to_le32(uri_desc->findex);
1599        }
1600
1601        return (u8 *)&ha->hablob->fw->data[offset];
1602}
1603
1604/* PCI related functions */
1605char *
1606qla82xx_pci_info_str(struct scsi_qla_host *vha, char *str)
1607{
1608        int pcie_reg;
1609        struct qla_hw_data *ha = vha->hw;
1610        char lwstr[6];
1611        uint16_t lnk;
1612
1613        pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
1614        pci_read_config_word(ha->pdev, pcie_reg + PCI_EXP_LNKSTA, &lnk);
1615        ha->link_width = (lnk >> 4) & 0x3f;
1616
1617        strcpy(str, "PCIe (");
1618        strcat(str, "2.5Gb/s ");
1619        snprintf(lwstr, sizeof(lwstr), "x%d)", ha->link_width);
1620        strcat(str, lwstr);
1621        return str;
1622}
1623
1624int qla82xx_pci_region_offset(struct pci_dev *pdev, int region)
1625{
1626        unsigned long val = 0;
1627        u32 control;
1628
1629        switch (region) {
1630        case 0:
1631                val = 0;
1632                break;
1633        case 1:
1634                pci_read_config_dword(pdev, QLA82XX_PCI_REG_MSIX_TBL, &control);
1635                val = control + QLA82XX_MSIX_TBL_SPACE;
1636                break;
1637        }
1638        return val;
1639}
1640
1641
1642int
1643qla82xx_iospace_config(struct qla_hw_data *ha)
1644{
1645        uint32_t len = 0;
1646
1647        if (pci_request_regions(ha->pdev, QLA2XXX_DRIVER_NAME)) {
1648                ql_log_pci(ql_log_fatal, ha->pdev, 0x000c,
1649                    "Failed to reserver selected regions.\n");
1650                goto iospace_error_exit;
1651        }
1652
1653        /* Use MMIO operations for all accesses. */
1654        if (!(pci_resource_flags(ha->pdev, 0) & IORESOURCE_MEM)) {
1655                ql_log_pci(ql_log_fatal, ha->pdev, 0x000d,
1656                    "Region #0 not an MMIO resource, aborting.\n");
1657                goto iospace_error_exit;
1658        }
1659
1660        len = pci_resource_len(ha->pdev, 0);
1661        ha->nx_pcibase =
1662            (unsigned long)ioremap(pci_resource_start(ha->pdev, 0), len);
1663        if (!ha->nx_pcibase) {
1664                ql_log_pci(ql_log_fatal, ha->pdev, 0x000e,
1665                    "Cannot remap pcibase MMIO, aborting.\n");
1666                pci_release_regions(ha->pdev);
1667                goto iospace_error_exit;
1668        }
1669
1670        /* Mapping of IO base pointer */
1671        ha->iobase = (device_reg_t __iomem *)((uint8_t *)ha->nx_pcibase +
1672            0xbc000 + (ha->pdev->devfn << 11));
1673
1674        if (!ql2xdbwr) {
1675                ha->nxdb_wr_ptr =
1676                    (unsigned long)ioremap((pci_resource_start(ha->pdev, 4) +
1677                    (ha->pdev->devfn << 12)), 4);
1678                if (!ha->nxdb_wr_ptr) {
1679                        ql_log_pci(ql_log_fatal, ha->pdev, 0x000f,
1680                            "Cannot remap MMIO, aborting.\n");
1681                        pci_release_regions(ha->pdev);
1682                        goto iospace_error_exit;
1683                }
1684
1685                /* Mapping of IO base pointer,
1686                 * door bell read and write pointer
1687                 */
1688                ha->nxdb_rd_ptr = (uint8_t *) ha->nx_pcibase + (512 * 1024) +
1689                    (ha->pdev->devfn * 8);
1690        } else {
1691                ha->nxdb_wr_ptr = (ha->pdev->devfn == 6 ?
1692                        QLA82XX_CAMRAM_DB1 :
1693                        QLA82XX_CAMRAM_DB2);
1694        }
1695
1696        ha->max_req_queues = ha->max_rsp_queues = 1;
1697        ha->msix_count = ha->max_rsp_queues + 1;
1698        ql_dbg_pci(ql_dbg_multiq, ha->pdev, 0xc006,
1699            "nx_pci_base=%p iobase=%p "
1700            "max_req_queues=%d msix_count=%d.\n",
1701            (void *)ha->nx_pcibase, ha->iobase,
1702            ha->max_req_queues, ha->msix_count);
1703        ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0010,
1704            "nx_pci_base=%p iobase=%p "
1705            "max_req_queues=%d msix_count=%d.\n",
1706            (void *)ha->nx_pcibase, ha->iobase,
1707            ha->max_req_queues, ha->msix_count);
1708        return 0;
1709
1710iospace_error_exit:
1711        return -ENOMEM;
1712}
1713
1714/* GS related functions */
1715
1716/* Initialization related functions */
1717
1718/**
1719 * qla82xx_pci_config() - Setup ISP82xx PCI configuration registers.
1720 * @ha: HA context
1721 *
1722 * Returns 0 on success.
1723*/
1724int
1725qla82xx_pci_config(scsi_qla_host_t *vha)
1726{
1727        struct qla_hw_data *ha = vha->hw;
1728        int ret;
1729
1730        pci_set_master(ha->pdev);
1731        ret = pci_set_mwi(ha->pdev);
1732        ha->chip_revision = ha->pdev->revision;
1733        ql_dbg(ql_dbg_init, vha, 0x0043,
1734            "Chip revision:%d.\n",
1735            ha->chip_revision);
1736        return 0;
1737}
1738
1739/**
1740 * qla82xx_reset_chip() - Setup ISP82xx PCI configuration registers.
1741 * @ha: HA context
1742 *
1743 * Returns 0 on success.
1744 */
1745void
1746qla82xx_reset_chip(scsi_qla_host_t *vha)
1747{
1748        struct qla_hw_data *ha = vha->hw;
1749        ha->isp_ops->disable_intrs(ha);
1750}
1751
1752void qla82xx_config_rings(struct scsi_qla_host *vha)
1753{
1754        struct qla_hw_data *ha = vha->hw;
1755        struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
1756        struct init_cb_81xx *icb;
1757        struct req_que *req = ha->req_q_map[0];
1758        struct rsp_que *rsp = ha->rsp_q_map[0];
1759
1760        /* Setup ring parameters in initialization control block. */
1761        icb = (struct init_cb_81xx *)ha->init_cb;
1762        icb->request_q_outpointer = __constant_cpu_to_le16(0);
1763        icb->response_q_inpointer = __constant_cpu_to_le16(0);
1764        icb->request_q_length = cpu_to_le16(req->length);
1765        icb->response_q_length = cpu_to_le16(rsp->length);
1766        icb->request_q_address[0] = cpu_to_le32(LSD(req->dma));
1767        icb->request_q_address[1] = cpu_to_le32(MSD(req->dma));
1768        icb->response_q_address[0] = cpu_to_le32(LSD(rsp->dma));
1769        icb->response_q_address[1] = cpu_to_le32(MSD(rsp->dma));
1770
1771        WRT_REG_DWORD((unsigned long  __iomem *)&reg->req_q_out[0], 0);
1772        WRT_REG_DWORD((unsigned long  __iomem *)&reg->rsp_q_in[0], 0);
1773        WRT_REG_DWORD((unsigned long  __iomem *)&reg->rsp_q_out[0], 0);
1774}
1775
1776void qla82xx_reset_adapter(struct scsi_qla_host *vha)
1777{
1778        struct qla_hw_data *ha = vha->hw;
1779        vha->flags.online = 0;
1780        qla2x00_try_to_stop_firmware(vha);
1781        ha->isp_ops->disable_intrs(ha);
1782}
1783
1784static int
1785qla82xx_fw_load_from_blob(struct qla_hw_data *ha)
1786{
1787        u64 *ptr64;
1788        u32 i, flashaddr, size;
1789        __le64 data;
1790
1791        size = (IMAGE_START - BOOTLD_START) / 8;
1792
1793        ptr64 = (u64 *)qla82xx_get_bootld_offset(ha);
1794        flashaddr = BOOTLD_START;
1795
1796        for (i = 0; i < size; i++) {
1797                data = cpu_to_le64(ptr64[i]);
1798                if (qla82xx_pci_mem_write_2M(ha, flashaddr, &data, 8))
1799                        return -EIO;
1800                flashaddr += 8;
1801        }
1802
1803        flashaddr = FLASH_ADDR_START;
1804        size = (__force u32)qla82xx_get_fw_size(ha) / 8;
1805        ptr64 = (u64 *)qla82xx_get_fw_offs(ha);
1806
1807        for (i = 0; i < size; i++) {
1808                data = cpu_to_le64(ptr64[i]);
1809
1810                if (qla82xx_pci_mem_write_2M(ha, flashaddr, &data, 8))
1811                        return -EIO;
1812                flashaddr += 8;
1813        }
1814        udelay(100);
1815
1816        /* Write a magic value to CAMRAM register
1817         * at a specified offset to indicate
1818         * that all data is written and
1819         * ready for firmware to initialize.
1820         */
1821        qla82xx_wr_32(ha, QLA82XX_CAM_RAM(0x1fc), QLA82XX_BDINFO_MAGIC);
1822
1823        read_lock(&ha->hw_lock);
1824        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x18, 0x1020);
1825        qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0x80001e);
1826        read_unlock(&ha->hw_lock);
1827        return 0;
1828}
1829
1830static int
1831qla82xx_set_product_offset(struct qla_hw_data *ha)
1832{
1833        struct qla82xx_uri_table_desc *ptab_desc = NULL;
1834        const uint8_t *unirom = ha->hablob->fw->data;
1835        uint32_t i;
1836        __le32 entries;
1837        __le32 flags, file_chiprev, offset;
1838        uint8_t chiprev = ha->chip_revision;
1839        /* Hardcoding mn_present flag for P3P */
1840        int mn_present = 0;
1841        uint32_t flagbit;
1842
1843        ptab_desc = qla82xx_get_table_desc(unirom,
1844                 QLA82XX_URI_DIR_SECT_PRODUCT_TBL);
1845       if (!ptab_desc)
1846                return -1;
1847
1848        entries = cpu_to_le32(ptab_desc->num_entries);
1849
1850        for (i = 0; i < entries; i++) {
1851                offset = cpu_to_le32(ptab_desc->findex) +
1852                        (i * cpu_to_le32(ptab_desc->entry_size));
1853                flags = cpu_to_le32(*((int *)&unirom[offset] +
1854                        QLA82XX_URI_FLAGS_OFF));
1855                file_chiprev = cpu_to_le32(*((int *)&unirom[offset] +
1856                        QLA82XX_URI_CHIP_REV_OFF));
1857
1858                flagbit = mn_present ? 1 : 2;
1859
1860                if ((chiprev == file_chiprev) && ((1ULL << flagbit) & flags)) {
1861                        ha->file_prd_off = offset;
1862                        return 0;
1863                }
1864        }
1865        return -1;
1866}
1867
1868int
1869qla82xx_validate_firmware_blob(scsi_qla_host_t *vha, uint8_t fw_type)
1870{
1871        __le32 val;
1872        uint32_t min_size;
1873        struct qla_hw_data *ha = vha->hw;
1874        const struct firmware *fw = ha->hablob->fw;
1875
1876        ha->fw_type = fw_type;
1877
1878        if (fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
1879                if (qla82xx_set_product_offset(ha))
1880                        return -EINVAL;
1881
1882                min_size = QLA82XX_URI_FW_MIN_SIZE;
1883        } else {
1884                val = cpu_to_le32(*(u32 *)&fw->data[QLA82XX_FW_MAGIC_OFFSET]);
1885                if ((__force u32)val != QLA82XX_BDINFO_MAGIC)
1886                        return -EINVAL;
1887
1888                min_size = QLA82XX_FW_MIN_SIZE;
1889        }
1890
1891        if (fw->size < min_size)
1892                return -EINVAL;
1893        return 0;
1894}
1895
1896static int
1897qla82xx_check_cmdpeg_state(struct qla_hw_data *ha)
1898{
1899        u32 val = 0;
1900        int retries = 60;
1901        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1902
1903        do {
1904                read_lock(&ha->hw_lock);
1905                val = qla82xx_rd_32(ha, CRB_CMDPEG_STATE);
1906                read_unlock(&ha->hw_lock);
1907
1908                switch (val) {
1909                case PHAN_INITIALIZE_COMPLETE:
1910                case PHAN_INITIALIZE_ACK:
1911                        return QLA_SUCCESS;
1912                case PHAN_INITIALIZE_FAILED:
1913                        break;
1914                default:
1915                        break;
1916                }
1917                ql_log(ql_log_info, vha, 0x00a8,
1918                    "CRB_CMDPEG_STATE: 0x%x and retries:0x%x.\n",
1919                    val, retries);
1920
1921                msleep(500);
1922
1923        } while (--retries);
1924
1925        ql_log(ql_log_fatal, vha, 0x00a9,
1926            "Cmd Peg initialization failed: 0x%x.\n", val);
1927
1928        val = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_PEGTUNE_DONE);
1929        read_lock(&ha->hw_lock);
1930        qla82xx_wr_32(ha, CRB_CMDPEG_STATE, PHAN_INITIALIZE_FAILED);
1931        read_unlock(&ha->hw_lock);
1932        return QLA_FUNCTION_FAILED;
1933}
1934
1935static int
1936qla82xx_check_rcvpeg_state(struct qla_hw_data *ha)
1937{
1938        u32 val = 0;
1939        int retries = 60;
1940        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1941
1942        do {
1943                read_lock(&ha->hw_lock);
1944                val = qla82xx_rd_32(ha, CRB_RCVPEG_STATE);
1945                read_unlock(&ha->hw_lock);
1946
1947                switch (val) {
1948                case PHAN_INITIALIZE_COMPLETE:
1949                case PHAN_INITIALIZE_ACK:
1950                        return QLA_SUCCESS;
1951                case PHAN_INITIALIZE_FAILED:
1952                        break;
1953                default:
1954                        break;
1955                }
1956                ql_log(ql_log_info, vha, 0x00ab,
1957                    "CRB_RCVPEG_STATE: 0x%x and retries: 0x%x.\n",
1958                    val, retries);
1959
1960                msleep(500);
1961
1962        } while (--retries);
1963
1964        ql_log(ql_log_fatal, vha, 0x00ac,
1965            "Rcv Peg initializatin failed: 0x%x.\n", val);
1966        read_lock(&ha->hw_lock);
1967        qla82xx_wr_32(ha, CRB_RCVPEG_STATE, PHAN_INITIALIZE_FAILED);
1968        read_unlock(&ha->hw_lock);
1969        return QLA_FUNCTION_FAILED;
1970}
1971
1972/* ISR related functions */
1973uint32_t qla82xx_isr_int_target_mask_enable[8] = {
1974        ISR_INT_TARGET_MASK, ISR_INT_TARGET_MASK_F1,
1975        ISR_INT_TARGET_MASK_F2, ISR_INT_TARGET_MASK_F3,
1976        ISR_INT_TARGET_MASK_F4, ISR_INT_TARGET_MASK_F5,
1977        ISR_INT_TARGET_MASK_F7, ISR_INT_TARGET_MASK_F7
1978};
1979
1980uint32_t qla82xx_isr_int_target_status[8] = {
1981        ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
1982        ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
1983        ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
1984        ISR_INT_TARGET_STATUS_F7, ISR_INT_TARGET_STATUS_F7
1985};
1986
1987static struct qla82xx_legacy_intr_set legacy_intr[] = \
1988        QLA82XX_LEGACY_INTR_CONFIG;
1989
1990/*
1991 * qla82xx_mbx_completion() - Process mailbox command completions.
1992 * @ha: SCSI driver HA context
1993 * @mb0: Mailbox0 register
1994 */
1995static void
1996qla82xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
1997{
1998        uint16_t        cnt;
1999        uint16_t __iomem *wptr;
2000        struct qla_hw_data *ha = vha->hw;
2001        struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
2002        wptr = (uint16_t __iomem *)&reg->mailbox_out[1];
2003
2004        /* Load return mailbox registers. */
2005        ha->flags.mbox_int = 1;
2006        ha->mailbox_out[0] = mb0;
2007
2008        for (cnt = 1; cnt < ha->mbx_count; cnt++) {
2009                ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
2010                wptr++;
2011        }
2012
2013        if (!ha->mcp)
2014                ql_dbg(ql_dbg_async, vha, 0x5053,
2015                    "MBX pointer ERROR.\n");
2016}
2017
2018/*
2019 * qla82xx_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
2020 * @irq:
2021 * @dev_id: SCSI driver HA context
2022 * @regs:
2023 *
2024 * Called by system whenever the host adapter generates an interrupt.
2025 *
2026 * Returns handled flag.
2027 */
2028irqreturn_t
2029qla82xx_intr_handler(int irq, void *dev_id)
2030{
2031        scsi_qla_host_t *vha;
2032        struct qla_hw_data *ha;
2033        struct rsp_que *rsp;
2034        struct device_reg_82xx __iomem *reg;
2035        int status = 0, status1 = 0;
2036        unsigned long   flags;
2037        unsigned long   iter;
2038        uint32_t        stat = 0;
2039        uint16_t        mb[4];
2040
2041        rsp = (struct rsp_que *) dev_id;
2042        if (!rsp) {
2043                printk(KERN_INFO
2044                        "%s(): NULL response queue pointer.\n", __func__);
2045                return IRQ_NONE;
2046        }
2047        ha = rsp->hw;
2048
2049        if (!ha->flags.msi_enabled) {
2050                status = qla82xx_rd_32(ha, ISR_INT_VECTOR);
2051                if (!(status & ha->nx_legacy_intr.int_vec_bit))
2052                        return IRQ_NONE;
2053
2054                status1 = qla82xx_rd_32(ha, ISR_INT_STATE_REG);
2055                if (!ISR_IS_LEGACY_INTR_TRIGGERED(status1))
2056                        return IRQ_NONE;
2057        }
2058
2059        /* clear the interrupt */
2060        qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_status_reg, 0xffffffff);
2061
2062        /* read twice to ensure write is flushed */
2063        qla82xx_rd_32(ha, ISR_INT_VECTOR);
2064        qla82xx_rd_32(ha, ISR_INT_VECTOR);
2065
2066        reg = &ha->iobase->isp82;
2067
2068        spin_lock_irqsave(&ha->hardware_lock, flags);
2069        vha = pci_get_drvdata(ha->pdev);
2070        for (iter = 1; iter--; ) {
2071
2072                if (RD_REG_DWORD(&reg->host_int)) {
2073                        stat = RD_REG_DWORD(&reg->host_status);
2074
2075                        switch (stat & 0xff) {
2076                        case 0x1:
2077                        case 0x2:
2078                        case 0x10:
2079                        case 0x11:
2080                                qla82xx_mbx_completion(vha, MSW(stat));
2081                                status |= MBX_INTERRUPT;
2082                                break;
2083                        case 0x12:
2084                                mb[0] = MSW(stat);
2085                                mb[1] = RD_REG_WORD(&reg->mailbox_out[1]);
2086                                mb[2] = RD_REG_WORD(&reg->mailbox_out[2]);
2087                                mb[3] = RD_REG_WORD(&reg->mailbox_out[3]);
2088                                qla2x00_async_event(vha, rsp, mb);
2089                                break;
2090                        case 0x13:
2091                                qla24xx_process_response_queue(vha, rsp);
2092                                break;
2093                        default:
2094                                ql_dbg(ql_dbg_async, vha, 0x5054,
2095                                    "Unrecognized interrupt type (%d).\n",
2096                                    stat & 0xff);
2097                                break;
2098                        }
2099                }
2100                WRT_REG_DWORD(&reg->host_int, 0);
2101        }
2102        spin_unlock_irqrestore(&ha->hardware_lock, flags);
2103        if (!ha->flags.msi_enabled)
2104                qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0xfbff);
2105
2106#ifdef QL_DEBUG_LEVEL_17
2107        if (!irq && ha->flags.eeh_busy)
2108                ql_log(ql_log_warn, vha, 0x503d,
2109                    "isr:status %x, cmd_flags %lx, mbox_int %x, stat %x.\n",
2110                    status, ha->mbx_cmd_flags, ha->flags.mbox_int, stat);
2111#endif
2112
2113        if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
2114            (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
2115                set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
2116                complete(&ha->mbx_intr_comp);
2117        }
2118        return IRQ_HANDLED;
2119}
2120
2121irqreturn_t
2122qla82xx_msix_default(int irq, void *dev_id)
2123{
2124        scsi_qla_host_t *vha;
2125        struct qla_hw_data *ha;
2126        struct rsp_que *rsp;
2127        struct device_reg_82xx __iomem *reg;
2128        int status = 0;
2129        unsigned long flags;
2130        uint32_t stat = 0;
2131        uint16_t mb[4];
2132
2133        rsp = (struct rsp_que *) dev_id;
2134        if (!rsp) {
2135                printk(KERN_INFO
2136                        "%s(): NULL response queue pointer.\n", __func__);
2137                return IRQ_NONE;
2138        }
2139        ha = rsp->hw;
2140
2141        reg = &ha->iobase->isp82;
2142
2143        spin_lock_irqsave(&ha->hardware_lock, flags);
2144        vha = pci_get_drvdata(ha->pdev);
2145        do {
2146                if (RD_REG_DWORD(&reg->host_int)) {
2147                        stat = RD_REG_DWORD(&reg->host_status);
2148
2149                        switch (stat & 0xff) {
2150                        case 0x1:
2151                        case 0x2:
2152                        case 0x10:
2153                        case 0x11:
2154                                qla82xx_mbx_completion(vha, MSW(stat));
2155                                status |= MBX_INTERRUPT;
2156                                break;
2157                        case 0x12:
2158                                mb[0] = MSW(stat);
2159                                mb[1] = RD_REG_WORD(&reg->mailbox_out[1]);
2160                                mb[2] = RD_REG_WORD(&reg->mailbox_out[2]);
2161                                mb[3] = RD_REG_WORD(&reg->mailbox_out[3]);
2162                                qla2x00_async_event(vha, rsp, mb);
2163                                break;
2164                        case 0x13:
2165                                qla24xx_process_response_queue(vha, rsp);
2166                                break;
2167                        default:
2168                                ql_dbg(ql_dbg_async, vha, 0x5041,
2169                                    "Unrecognized interrupt type (%d).\n",
2170                                    stat & 0xff);
2171                                break;
2172                        }
2173                }
2174                WRT_REG_DWORD(&reg->host_int, 0);
2175        } while (0);
2176
2177        spin_unlock_irqrestore(&ha->hardware_lock, flags);
2178
2179#ifdef QL_DEBUG_LEVEL_17
2180        if (!irq && ha->flags.eeh_busy)
2181                ql_log(ql_log_warn, vha, 0x5044,
2182                    "isr:status %x, cmd_flags %lx, mbox_int %x, stat %x.\n",
2183                    status, ha->mbx_cmd_flags, ha->flags.mbox_int, stat);
2184#endif
2185
2186        if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
2187                (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
2188                        set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
2189                        complete(&ha->mbx_intr_comp);
2190        }
2191        return IRQ_HANDLED;
2192}
2193
2194irqreturn_t
2195qla82xx_msix_rsp_q(int irq, void *dev_id)
2196{
2197        scsi_qla_host_t *vha;
2198        struct qla_hw_data *ha;
2199        struct rsp_que *rsp;
2200        struct device_reg_82xx __iomem *reg;
2201        unsigned long flags;
2202
2203        rsp = (struct rsp_que *) dev_id;
2204        if (!rsp) {
2205                printk(KERN_INFO
2206                        "%s(): NULL response queue pointer.\n", __func__);
2207                return IRQ_NONE;
2208        }
2209
2210        ha = rsp->hw;
2211        reg = &ha->iobase->isp82;
2212        spin_lock_irqsave(&ha->hardware_lock, flags);
2213        vha = pci_get_drvdata(ha->pdev);
2214        qla24xx_process_response_queue(vha, rsp);
2215        WRT_REG_DWORD(&reg->host_int, 0);
2216        spin_unlock_irqrestore(&ha->hardware_lock, flags);
2217        return IRQ_HANDLED;
2218}
2219
2220void
2221qla82xx_poll(int irq, void *dev_id)
2222{
2223        scsi_qla_host_t *vha;
2224        struct qla_hw_data *ha;
2225        struct rsp_que *rsp;
2226        struct device_reg_82xx __iomem *reg;
2227        int status = 0;
2228        uint32_t stat;
2229        uint16_t mb[4];
2230        unsigned long flags;
2231
2232        rsp = (struct rsp_que *) dev_id;
2233        if (!rsp) {
2234                printk(KERN_INFO
2235                        "%s(): NULL response queue pointer.\n", __func__);
2236                return;
2237        }
2238        ha = rsp->hw;
2239
2240        reg = &ha->iobase->isp82;
2241        spin_lock_irqsave(&ha->hardware_lock, flags);
2242        vha = pci_get_drvdata(ha->pdev);
2243
2244        if (RD_REG_DWORD(&reg->host_int)) {
2245                stat = RD_REG_DWORD(&reg->host_status);
2246                switch (stat & 0xff) {
2247                case 0x1:
2248                case 0x2:
2249                case 0x10:
2250                case 0x11:
2251                        qla82xx_mbx_completion(vha, MSW(stat));
2252                        status |= MBX_INTERRUPT;
2253                        break;
2254                case 0x12:
2255                        mb[0] = MSW(stat);
2256                        mb[1] = RD_REG_WORD(&reg->mailbox_out[1]);
2257                        mb[2] = RD_REG_WORD(&reg->mailbox_out[2]);
2258                        mb[3] = RD_REG_WORD(&reg->mailbox_out[3]);
2259                        qla2x00_async_event(vha, rsp, mb);
2260                        break;
2261                case 0x13:
2262                        qla24xx_process_response_queue(vha, rsp);
2263                        break;
2264                default:
2265                        ql_dbg(ql_dbg_p3p, vha, 0xb013,
2266                            "Unrecognized interrupt type (%d).\n",
2267                            stat * 0xff);
2268                        break;
2269                }
2270        }
2271        WRT_REG_DWORD(&reg->host_int, 0);
2272        spin_unlock_irqrestore(&ha->hardware_lock, flags);
2273}
2274
2275void
2276qla82xx_enable_intrs(struct qla_hw_data *ha)
2277{
2278        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2279        qla82xx_mbx_intr_enable(vha);
2280        spin_lock_irq(&ha->hardware_lock);
2281        qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0xfbff);
2282        spin_unlock_irq(&ha->hardware_lock);
2283        ha->interrupts_on = 1;
2284}
2285
2286void
2287qla82xx_disable_intrs(struct qla_hw_data *ha)
2288{
2289        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2290        qla82xx_mbx_intr_disable(vha);
2291        spin_lock_irq(&ha->hardware_lock);
2292        qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0x0400);
2293        spin_unlock_irq(&ha->hardware_lock);
2294        ha->interrupts_on = 0;
2295}
2296
2297void qla82xx_init_flags(struct qla_hw_data *ha)
2298{
2299        struct qla82xx_legacy_intr_set *nx_legacy_intr;
2300
2301        /* ISP 8021 initializations */
2302        rwlock_init(&ha->hw_lock);
2303        ha->qdr_sn_window = -1;
2304        ha->ddr_mn_window = -1;
2305        ha->curr_window = 255;
2306        ha->portnum = PCI_FUNC(ha->pdev->devfn);
2307        nx_legacy_intr = &legacy_intr[ha->portnum];
2308        ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit;
2309        ha->nx_legacy_intr.tgt_status_reg = nx_legacy_intr->tgt_status_reg;
2310        ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg;
2311        ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg;
2312}
2313
2314inline void
2315qla82xx_set_drv_active(scsi_qla_host_t *vha)
2316{
2317        uint32_t drv_active;
2318        struct qla_hw_data *ha = vha->hw;
2319
2320        drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2321
2322        /* If reset value is all FF's, initialize DRV_ACTIVE */
2323        if (drv_active == 0xffffffff) {
2324                qla82xx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE,
2325                        QLA82XX_DRV_NOT_ACTIVE);
2326                drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2327        }
2328        drv_active |= (QLA82XX_DRV_ACTIVE << (ha->portnum * 4));
2329        qla82xx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE, drv_active);
2330}
2331
2332inline void
2333qla82xx_clear_drv_active(struct qla_hw_data *ha)
2334{
2335        uint32_t drv_active;
2336
2337        drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2338        drv_active &= ~(QLA82XX_DRV_ACTIVE << (ha->portnum * 4));
2339        qla82xx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE, drv_active);
2340}
2341
2342static inline int
2343qla82xx_need_reset(struct qla_hw_data *ha)
2344{
2345        uint32_t drv_state;
2346        int rval;
2347
2348        if (ha->flags.isp82xx_reset_owner)
2349                return 1;
2350        else {
2351                drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2352                rval = drv_state & (QLA82XX_DRVST_RST_RDY << (ha->portnum * 4));
2353                return rval;
2354        }
2355}
2356
2357static inline void
2358qla82xx_set_rst_ready(struct qla_hw_data *ha)
2359{
2360        uint32_t drv_state;
2361        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2362
2363        drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2364
2365        /* If reset value is all FF's, initialize DRV_STATE */
2366        if (drv_state == 0xffffffff) {
2367                qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, QLA82XX_DRVST_NOT_RDY);
2368                drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2369        }
2370        drv_state |= (QLA82XX_DRVST_RST_RDY << (ha->portnum * 4));
2371        ql_dbg(ql_dbg_init, vha, 0x00bb,
2372            "drv_state = 0x%08x.\n", drv_state);
2373        qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, drv_state);
2374}
2375
2376static inline void
2377qla82xx_clear_rst_ready(struct qla_hw_data *ha)
2378{
2379        uint32_t drv_state;
2380
2381        drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2382        drv_state &= ~(QLA82XX_DRVST_RST_RDY << (ha->portnum * 4));
2383        qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, drv_state);
2384}
2385
2386static inline void
2387qla82xx_set_qsnt_ready(struct qla_hw_data *ha)
2388{
2389        uint32_t qsnt_state;
2390
2391        qsnt_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2392        qsnt_state |= (QLA82XX_DRVST_QSNT_RDY << (ha->portnum * 4));
2393        qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, qsnt_state);
2394}
2395
2396void
2397qla82xx_clear_qsnt_ready(scsi_qla_host_t *vha)
2398{
2399        struct qla_hw_data *ha = vha->hw;
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
2407static int
2408qla82xx_load_fw(scsi_qla_host_t *vha)
2409{
2410        int rst;
2411        struct fw_blob *blob;
2412        struct qla_hw_data *ha = vha->hw;
2413
2414        if (qla82xx_pinit_from_rom(vha) != QLA_SUCCESS) {
2415                ql_log(ql_log_fatal, vha, 0x009f,
2416                    "Error during CRB initialization.\n");
2417                return QLA_FUNCTION_FAILED;
2418        }
2419        udelay(500);
2420
2421        /* Bring QM and CAMRAM out of reset */
2422        rst = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET);
2423        rst &= ~((1 << 28) | (1 << 24));
2424        qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, rst);
2425
2426        /*
2427         * FW Load priority:
2428         * 1) Operational firmware residing in flash.
2429         * 2) Firmware via request-firmware interface (.bin file).
2430         */
2431        if (ql2xfwloadbin == 2)
2432                goto try_blob_fw;
2433
2434        ql_log(ql_log_info, vha, 0x00a0,
2435            "Attempting to load firmware from flash.\n");
2436
2437        if (qla82xx_fw_load_from_flash(ha) == QLA_SUCCESS) {
2438                ql_log(ql_log_info, vha, 0x00a1,
2439                    "Firmware loaded successully from flash.\n");
2440                return QLA_SUCCESS;
2441        } else {
2442                ql_log(ql_log_warn, vha, 0x0108,
2443                    "Firmware load from flash failed.\n");
2444        }
2445
2446try_blob_fw:
2447        ql_log(ql_log_info, vha, 0x00a2,
2448            "Attempting to load firmware from blob.\n");
2449
2450        /* Load firmware blob. */
2451        blob = ha->hablob = qla2x00_request_firmware(vha);
2452        if (!blob) {
2453                ql_log(ql_log_fatal, vha, 0x00a3,
2454                    "Firmware image not preset.\n");
2455                goto fw_load_failed;
2456        }
2457
2458        /* Validating firmware blob */
2459        if (qla82xx_validate_firmware_blob(vha,
2460                QLA82XX_FLASH_ROMIMAGE)) {
2461                /* Fallback to URI format */
2462                if (qla82xx_validate_firmware_blob(vha,
2463                        QLA82XX_UNIFIED_ROMIMAGE)) {
2464                        ql_log(ql_log_fatal, vha, 0x00a4,
2465                            "No valid firmware image found.\n");
2466                        return QLA_FUNCTION_FAILED;
2467                }
2468        }
2469
2470        if (qla82xx_fw_load_from_blob(ha) == QLA_SUCCESS) {
2471                ql_log(ql_log_info, vha, 0x00a5,
2472                    "Firmware loaded successfully from binary blob.\n");
2473                return QLA_SUCCESS;
2474        } else {
2475                ql_log(ql_log_fatal, vha, 0x00a6,
2476                    "Firmware load failed for binary blob.\n");
2477                blob->fw = NULL;
2478                blob = NULL;
2479                goto fw_load_failed;
2480        }
2481        return QLA_SUCCESS;
2482
2483fw_load_failed:
2484        return QLA_FUNCTION_FAILED;
2485}
2486
2487int
2488qla82xx_start_firmware(scsi_qla_host_t *vha)
2489{
2490        int           pcie_cap;
2491        uint16_t      lnk;
2492        struct qla_hw_data *ha = vha->hw;
2493
2494        /* scrub dma mask expansion register */
2495        qla82xx_wr_32(ha, CRB_DMA_SHIFT, QLA82XX_DMA_SHIFT_VALUE);
2496
2497        /* Put both the PEG CMD and RCV PEG to default state
2498         * of 0 before resetting the hardware
2499         */
2500        qla82xx_wr_32(ha, CRB_CMDPEG_STATE, 0);
2501        qla82xx_wr_32(ha, CRB_RCVPEG_STATE, 0);
2502
2503        /* Overwrite stale initialization register values */
2504        qla82xx_wr_32(ha, QLA82XX_PEG_HALT_STATUS1, 0);
2505        qla82xx_wr_32(ha, QLA82XX_PEG_HALT_STATUS2, 0);
2506
2507        if (qla82xx_load_fw(vha) != QLA_SUCCESS) {
2508                ql_log(ql_log_fatal, vha, 0x00a7,
2509                    "Error trying to start fw.\n");
2510                return QLA_FUNCTION_FAILED;
2511        }
2512
2513        /* Handshake with the card before we register the devices. */
2514        if (qla82xx_check_cmdpeg_state(ha) != QLA_SUCCESS) {
2515                ql_log(ql_log_fatal, vha, 0x00aa,
2516                    "Error during card handshake.\n");
2517                return QLA_FUNCTION_FAILED;
2518        }
2519
2520        /* Negotiated Link width */
2521        pcie_cap = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
2522        pci_read_config_word(ha->pdev, pcie_cap + PCI_EXP_LNKSTA, &lnk);
2523        ha->link_width = (lnk >> 4) & 0x3f;
2524
2525        /* Synchronize with Receive peg */
2526        return qla82xx_check_rcvpeg_state(ha);
2527}
2528
2529static uint32_t *
2530qla82xx_read_flash_data(scsi_qla_host_t *vha, uint32_t *dwptr, uint32_t faddr,
2531        uint32_t length)
2532{
2533        uint32_t i;
2534        uint32_t val;
2535        struct qla_hw_data *ha = vha->hw;
2536
2537        /* Dword reads to flash. */
2538        for (i = 0; i < length/4; i++, faddr += 4) {
2539                if (qla82xx_rom_fast_read(ha, faddr, &val)) {
2540                        ql_log(ql_log_warn, vha, 0x0106,
2541                            "Do ROM fast read failed.\n");
2542                        goto done_read;
2543                }
2544                dwptr[i] = __constant_cpu_to_le32(val);
2545        }
2546done_read:
2547        return dwptr;
2548}
2549
2550static int
2551qla82xx_unprotect_flash(struct qla_hw_data *ha)
2552{
2553        int ret;
2554        uint32_t val;
2555        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2556
2557        ret = ql82xx_rom_lock_d(ha);
2558        if (ret < 0) {
2559                ql_log(ql_log_warn, vha, 0xb014,
2560                    "ROM Lock failed.\n");
2561                return ret;
2562        }
2563
2564        ret = qla82xx_read_status_reg(ha, &val);
2565        if (ret < 0)
2566                goto done_unprotect;
2567
2568        val &= ~(BLOCK_PROTECT_BITS << 2);
2569        ret = qla82xx_write_status_reg(ha, val);
2570        if (ret < 0) {
2571                val |= (BLOCK_PROTECT_BITS << 2);
2572                qla82xx_write_status_reg(ha, val);
2573        }
2574
2575        if (qla82xx_write_disable_flash(ha) != 0)
2576                ql_log(ql_log_warn, vha, 0xb015,
2577                    "Write disable failed.\n");
2578
2579done_unprotect:
2580        qla82xx_rom_unlock(ha);
2581        return ret;
2582}
2583
2584static int
2585qla82xx_protect_flash(struct qla_hw_data *ha)
2586{
2587        int ret;
2588        uint32_t val;
2589        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2590
2591        ret = ql82xx_rom_lock_d(ha);
2592        if (ret < 0) {
2593                ql_log(ql_log_warn, vha, 0xb016,
2594                    "ROM Lock failed.\n");
2595                return ret;
2596        }
2597
2598        ret = qla82xx_read_status_reg(ha, &val);
2599        if (ret < 0)
2600                goto done_protect;
2601
2602        val |= (BLOCK_PROTECT_BITS << 2);
2603        /* LOCK all sectors */
2604        ret = qla82xx_write_status_reg(ha, val);
2605        if (ret < 0)
2606                ql_log(ql_log_warn, vha, 0xb017,
2607                    "Write status register failed.\n");
2608
2609        if (qla82xx_write_disable_flash(ha) != 0)
2610                ql_log(ql_log_warn, vha, 0xb018,
2611                    "Write disable failed.\n");
2612done_protect:
2613        qla82xx_rom_unlock(ha);
2614        return ret;
2615}
2616
2617static int
2618qla82xx_erase_sector(struct qla_hw_data *ha, int addr)
2619{
2620        int ret = 0;
2621        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2622
2623        ret = ql82xx_rom_lock_d(ha);
2624        if (ret < 0) {
2625                ql_log(ql_log_warn, vha, 0xb019,
2626                    "ROM Lock failed.\n");
2627                return ret;
2628        }
2629
2630        qla82xx_flash_set_write_enable(ha);
2631        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ADDRESS, addr);
2632        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 3);
2633        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_SE);
2634
2635        if (qla82xx_wait_rom_done(ha)) {
2636                ql_log(ql_log_warn, vha, 0xb01a,
2637                    "Error waiting for rom done.\n");
2638                ret = -1;
2639                goto done;
2640        }
2641        ret = qla82xx_flash_wait_write_finish(ha);
2642done:
2643        qla82xx_rom_unlock(ha);
2644        return ret;
2645}
2646
2647/*
2648 * Address and length are byte address
2649 */
2650uint8_t *
2651qla82xx_read_optrom_data(struct scsi_qla_host *vha, uint8_t *buf,
2652        uint32_t offset, uint32_t length)
2653{
2654        scsi_block_requests(vha->host);
2655        qla82xx_read_flash_data(vha, (uint32_t *)buf, offset, length);
2656        scsi_unblock_requests(vha->host);
2657        return buf;
2658}
2659
2660static int
2661qla82xx_write_flash_data(struct scsi_qla_host *vha, uint32_t *dwptr,
2662        uint32_t faddr, uint32_t dwords)
2663{
2664        int ret;
2665        uint32_t liter;
2666        uint32_t sec_mask, rest_addr;
2667        dma_addr_t optrom_dma;
2668        void *optrom = NULL;
2669        int page_mode = 0;
2670        struct qla_hw_data *ha = vha->hw;
2671
2672        ret = -1;
2673
2674        /* Prepare burst-capable write on supported ISPs. */
2675        if (page_mode && !(faddr & 0xfff) &&
2676            dwords > OPTROM_BURST_DWORDS) {
2677                optrom = dma_alloc_coherent(&ha->pdev->dev, OPTROM_BURST_SIZE,
2678                    &optrom_dma, GFP_KERNEL);
2679                if (!optrom) {
2680                        ql_log(ql_log_warn, vha, 0xb01b,
2681                            "Unable to allocate memory "
2682                            "for optron burst write (%x KB).\n",
2683                            OPTROM_BURST_SIZE / 1024);
2684                }
2685        }
2686
2687        rest_addr = ha->fdt_block_size - 1;
2688        sec_mask = ~rest_addr;
2689
2690        ret = qla82xx_unprotect_flash(ha);
2691        if (ret) {
2692                ql_log(ql_log_warn, vha, 0xb01c,
2693                    "Unable to unprotect flash for update.\n");
2694                goto write_done;
2695        }
2696
2697        for (liter = 0; liter < dwords; liter++, faddr += 4, dwptr++) {
2698                /* Are we at the beginning of a sector? */
2699                if ((faddr & rest_addr) == 0) {
2700
2701                        ret = qla82xx_erase_sector(ha, faddr);
2702                        if (ret) {
2703                                ql_log(ql_log_warn, vha, 0xb01d,
2704                                    "Unable to erase sector: address=%x.\n",
2705                                    faddr);
2706                                break;
2707                        }
2708                }
2709
2710                /* Go with burst-write. */
2711                if (optrom && (liter + OPTROM_BURST_DWORDS) <= dwords) {
2712                        /* Copy data to DMA'ble buffer. */
2713                        memcpy(optrom, dwptr, OPTROM_BURST_SIZE);
2714
2715                        ret = qla2x00_load_ram(vha, optrom_dma,
2716                            (ha->flash_data_off | faddr),
2717                            OPTROM_BURST_DWORDS);
2718                        if (ret != QLA_SUCCESS) {
2719                                ql_log(ql_log_warn, vha, 0xb01e,
2720                                    "Unable to burst-write optrom segment "
2721                                    "(%x/%x/%llx).\n", ret,
2722                                    (ha->flash_data_off | faddr),
2723                                    (unsigned long long)optrom_dma);
2724                                ql_log(ql_log_warn, vha, 0xb01f,
2725                                    "Reverting to slow-write.\n");
2726
2727                                dma_free_coherent(&ha->pdev->dev,
2728                                    OPTROM_BURST_SIZE, optrom, optrom_dma);
2729                                optrom = NULL;
2730                        } else {
2731                                liter += OPTROM_BURST_DWORDS - 1;
2732                                faddr += OPTROM_BURST_DWORDS - 1;
2733                                dwptr += OPTROM_BURST_DWORDS - 1;
2734                                continue;
2735                        }
2736                }
2737
2738                ret = qla82xx_write_flash_dword(ha, faddr,
2739                    cpu_to_le32(*dwptr));
2740                if (ret) {
2741                        ql_dbg(ql_dbg_p3p, vha, 0xb020,
2742                            "Unable to program flash address=%x data=%x.\n",
2743                            faddr, *dwptr);
2744                        break;
2745                }
2746        }
2747
2748        ret = qla82xx_protect_flash(ha);
2749        if (ret)
2750                ql_log(ql_log_warn, vha, 0xb021,
2751                    "Unable to protect flash after update.\n");
2752write_done:
2753        if (optrom)
2754                dma_free_coherent(&ha->pdev->dev,
2755                    OPTROM_BURST_SIZE, optrom, optrom_dma);
2756        return ret;
2757}
2758
2759int
2760qla82xx_write_optrom_data(struct scsi_qla_host *vha, uint8_t *buf,
2761        uint32_t offset, uint32_t length)
2762{
2763        int rval;
2764
2765        /* Suspend HBA. */
2766        scsi_block_requests(vha->host);
2767        rval = qla82xx_write_flash_data(vha, (uint32_t *)buf, offset,
2768                length >> 2);
2769        scsi_unblock_requests(vha->host);
2770
2771        /* Convert return ISP82xx to generic */
2772        if (rval)
2773                rval = QLA_FUNCTION_FAILED;
2774        else
2775                rval = QLA_SUCCESS;
2776        return rval;
2777}
2778
2779void
2780qla82xx_start_iocbs(scsi_qla_host_t *vha)
2781{
2782        struct qla_hw_data *ha = vha->hw;
2783        struct req_que *req = ha->req_q_map[0];
2784        struct device_reg_82xx __iomem *reg;
2785        uint32_t dbval;
2786
2787        /* Adjust ring index. */
2788        req->ring_index++;
2789        if (req->ring_index == req->length) {
2790                req->ring_index = 0;
2791                req->ring_ptr = req->ring;
2792        } else
2793                req->ring_ptr++;
2794
2795        reg = &ha->iobase->isp82;
2796        dbval = 0x04 | (ha->portnum << 5);
2797
2798        dbval = dbval | (req->id << 8) | (req->ring_index << 16);
2799        if (ql2xdbwr)
2800                qla82xx_wr_32(ha, ha->nxdb_wr_ptr, dbval);
2801        else {
2802                WRT_REG_DWORD((unsigned long __iomem *)ha->nxdb_wr_ptr, dbval);
2803                wmb();
2804                while (RD_REG_DWORD(ha->nxdb_rd_ptr) != dbval) {
2805                        WRT_REG_DWORD((unsigned long  __iomem *)ha->nxdb_wr_ptr,
2806                                dbval);
2807                        wmb();
2808                }
2809        }
2810}
2811
2812void qla82xx_rom_lock_recovery(struct qla_hw_data *ha)
2813{
2814        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2815
2816        if (qla82xx_rom_lock(ha))
2817                /* Someone else is holding the lock. */
2818                ql_log(ql_log_info, vha, 0xb022,
2819                    "Resetting rom_lock.\n");
2820
2821        /*
2822         * Either we got the lock, or someone
2823         * else died while holding it.
2824         * In either case, unlock.
2825         */
2826        qla82xx_rom_unlock(ha);
2827}
2828
2829/*
2830 * qla82xx_device_bootstrap
2831 *    Initialize device, set DEV_READY, start fw
2832 *
2833 * Note:
2834 *      IDC lock must be held upon entry
2835 *
2836 * Return:
2837 *    Success : 0
2838 *    Failed  : 1
2839 */
2840static int
2841qla82xx_device_bootstrap(scsi_qla_host_t *vha)
2842{
2843        int rval = QLA_SUCCESS;
2844        int i, timeout;
2845        uint32_t old_count, count;
2846        struct qla_hw_data *ha = vha->hw;
2847        int need_reset = 0, peg_stuck = 1;
2848
2849        need_reset = qla82xx_need_reset(ha);
2850
2851        old_count = qla82xx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER);
2852
2853        for (i = 0; i < 10; i++) {
2854                timeout = msleep_interruptible(200);
2855                if (timeout) {
2856                        qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
2857                                QLA82XX_DEV_FAILED);
2858                        return QLA_FUNCTION_FAILED;
2859                }
2860
2861                count = qla82xx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER);
2862                if (count != old_count)
2863                        peg_stuck = 0;
2864        }
2865
2866        if (need_reset) {
2867                /* We are trying to perform a recovery here. */
2868                if (peg_stuck)
2869                        qla82xx_rom_lock_recovery(ha);
2870                goto dev_initialize;
2871        } else  {
2872                /* Start of day for this ha context. */
2873                if (peg_stuck) {
2874                        /* Either we are the first or recovery in progress. */
2875                        qla82xx_rom_lock_recovery(ha);
2876                        goto dev_initialize;
2877                } else
2878                        /* Firmware already running. */
2879                        goto dev_ready;
2880        }
2881
2882        return rval;
2883
2884dev_initialize:
2885        /* set to DEV_INITIALIZING */
2886        ql_log(ql_log_info, vha, 0x009e,
2887            "HW State: INITIALIZING.\n");
2888        qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_INITIALIZING);
2889
2890        /* Driver that sets device state to initializating sets IDC version */
2891        qla82xx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION, QLA82XX_IDC_VERSION);
2892
2893        qla82xx_idc_unlock(ha);
2894        rval = qla82xx_start_firmware(vha);
2895        qla82xx_idc_lock(ha);
2896
2897        if (rval != QLA_SUCCESS) {
2898                ql_log(ql_log_fatal, vha, 0x00ad,
2899                    "HW State: FAILED.\n");
2900                qla82xx_clear_drv_active(ha);
2901                qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_FAILED);
2902                return rval;
2903        }
2904
2905dev_ready:
2906        ql_log(ql_log_info, vha, 0x00ae,
2907            "HW State: READY.\n");
2908        qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_READY);
2909
2910        return QLA_SUCCESS;
2911}
2912
2913/*
2914* qla82xx_need_qsnt_handler
2915*    Code to start quiescence sequence
2916*
2917* Note:
2918*      IDC lock must be held upon entry
2919*
2920* Return: void
2921*/
2922
2923static void
2924qla82xx_need_qsnt_handler(scsi_qla_host_t *vha)
2925{
2926        struct qla_hw_data *ha = vha->hw;
2927        uint32_t dev_state, drv_state, drv_active;
2928        unsigned long reset_timeout;
2929
2930        if (vha->flags.online) {
2931                /*Block any further I/O and wait for pending cmnds to complete*/
2932                qla82xx_quiescent_state_cleanup(vha);
2933        }
2934
2935        /* Set the quiescence ready bit */
2936        qla82xx_set_qsnt_ready(ha);
2937
2938        /*wait for 30 secs for other functions to ack */
2939        reset_timeout = jiffies + (30 * HZ);
2940
2941        drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2942        drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2943        /* Its 2 that is written when qsnt is acked, moving one bit */
2944        drv_active = drv_active << 0x01;
2945
2946        while (drv_state != drv_active) {
2947
2948                if (time_after_eq(jiffies, reset_timeout)) {
2949                        /* quiescence timeout, other functions didn't ack
2950                         * changing the state to DEV_READY
2951                         */
2952                        ql_log(ql_log_info, vha, 0xb023,
2953                            "%s : QUIESCENT TIMEOUT.\n", QLA2XXX_DRIVER_NAME);
2954                        ql_log(ql_log_info, vha, 0xb024,
2955                            "DRV_ACTIVE:%d DRV_STATE:%d.\n",
2956                            drv_active, drv_state);
2957                        qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
2958                            QLA82XX_DEV_READY);
2959                        ql_log(ql_log_info, vha, 0xb025,
2960                            "HW State: DEV_READY.\n");
2961                        qla82xx_idc_unlock(ha);
2962                        qla2x00_perform_loop_resync(vha);
2963                        qla82xx_idc_lock(ha);
2964
2965                        qla82xx_clear_qsnt_ready(vha);
2966                        return;
2967                }
2968
2969                qla82xx_idc_unlock(ha);
2970                msleep(1000);
2971                qla82xx_idc_lock(ha);
2972
2973                drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2974                drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2975                drv_active = drv_active << 0x01;
2976        }
2977        dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
2978        /* everyone acked so set the state to DEV_QUIESCENCE */
2979        if (dev_state == QLA82XX_DEV_NEED_QUIESCENT) {
2980                ql_log(ql_log_info, vha, 0xb026,
2981                    "HW State: DEV_QUIESCENT.\n");
2982                qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_QUIESCENT);
2983        }
2984}
2985
2986/*
2987* qla82xx_wait_for_state_change
2988*    Wait for device state to change from given current state
2989*
2990* Note:
2991*     IDC lock must not be held upon entry
2992*
2993* Return:
2994*    Changed device state.
2995*/
2996uint32_t
2997qla82xx_wait_for_state_change(scsi_qla_host_t *vha, uint32_t curr_state)
2998{
2999        struct qla_hw_data *ha = vha->hw;
3000        uint32_t dev_state;
3001
3002        do {
3003                msleep(1000);
3004                qla82xx_idc_lock(ha);
3005                dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3006                qla82xx_idc_unlock(ha);
3007        } while (dev_state == curr_state);
3008
3009        return dev_state;
3010}
3011
3012static void
3013qla82xx_dev_failed_handler(scsi_qla_host_t *vha)
3014{
3015        struct qla_hw_data *ha = vha->hw;
3016
3017        /* Disable the board */
3018        ql_log(ql_log_fatal, vha, 0x00b8,
3019            "Disabling the board.\n");
3020
3021        qla82xx_idc_lock(ha);
3022        qla82xx_clear_drv_active(ha);
3023        qla82xx_idc_unlock(ha);
3024
3025        /* Set DEV_FAILED flag to disable timer */
3026        vha->device_flags |= DFLG_DEV_FAILED;
3027        qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
3028        qla2x00_mark_all_devices_lost(vha, 0);
3029        vha->flags.online = 0;
3030        vha->flags.init_done = 0;
3031}
3032
3033/*
3034 * qla82xx_need_reset_handler
3035 *    Code to start reset sequence
3036 *
3037 * Note:
3038 *      IDC lock must be held upon entry
3039 *
3040 * Return:
3041 *    Success : 0
3042 *    Failed  : 1
3043 */
3044static void
3045qla82xx_need_reset_handler(scsi_qla_host_t *vha)
3046{
3047        uint32_t dev_state, drv_state, drv_active;
3048        uint32_t active_mask = 0;
3049        unsigned long reset_timeout;
3050        struct qla_hw_data *ha = vha->hw;
3051        struct req_que *req = ha->req_q_map[0];
3052
3053        if (vha->flags.online) {
3054                qla82xx_idc_unlock(ha);
3055                qla2x00_abort_isp_cleanup(vha);
3056                ha->isp_ops->get_flash_version(vha, req->ring);
3057                ha->isp_ops->nvram_config(vha);
3058                qla82xx_idc_lock(ha);
3059        }
3060
3061        drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3062        if (!ha->flags.isp82xx_reset_owner) {
3063                ql_dbg(ql_dbg_p3p, vha, 0xb028,
3064                    "reset_acknowledged by 0x%x\n", ha->portnum);
3065                qla82xx_set_rst_ready(ha);
3066        } else {
3067                active_mask = ~(QLA82XX_DRV_ACTIVE << (ha->portnum * 4));
3068                drv_active &= active_mask;
3069                ql_dbg(ql_dbg_p3p, vha, 0xb029,
3070                    "active_mask: 0x%08x\n", active_mask);
3071        }
3072
3073        /* wait for 10 seconds for reset ack from all functions */
3074        reset_timeout = jiffies + (ha->nx_reset_timeout * HZ);
3075
3076        drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
3077        drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3078        dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3079
3080        ql_dbg(ql_dbg_p3p, vha, 0xb02a,
3081            "drv_state: 0x%08x, drv_active: 0x%08x, "
3082            "dev_state: 0x%08x, active_mask: 0x%08x\n",
3083            drv_state, drv_active, dev_state, active_mask);
3084
3085        while (drv_state != drv_active &&
3086            dev_state != QLA82XX_DEV_INITIALIZING) {
3087                if (time_after_eq(jiffies, reset_timeout)) {
3088                        ql_log(ql_log_warn, vha, 0x00b5,
3089                            "Reset timeout.\n");
3090                        break;
3091                }
3092                qla82xx_idc_unlock(ha);
3093                msleep(1000);
3094                qla82xx_idc_lock(ha);
3095                drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
3096                drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3097                if (ha->flags.isp82xx_reset_owner)
3098                        drv_active &= active_mask;
3099                dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3100        }
3101
3102        ql_dbg(ql_dbg_p3p, vha, 0xb02b,
3103            "drv_state: 0x%08x, drv_active: 0x%08x, "
3104            "dev_state: 0x%08x, active_mask: 0x%08x\n",
3105            drv_state, drv_active, dev_state, active_mask);
3106
3107        ql_log(ql_log_info, vha, 0x00b6,
3108            "Device state is 0x%x = %s.\n",
3109            dev_state,
3110            dev_state < MAX_STATES ? qdev_state(dev_state) : "Unknown");
3111
3112        /* Force to DEV_COLD unless someone else is starting a reset */
3113        if (dev_state != QLA82XX_DEV_INITIALIZING &&
3114            dev_state != QLA82XX_DEV_COLD) {
3115                ql_log(ql_log_info, vha, 0x00b7,
3116                    "HW State: COLD/RE-INIT.\n");
3117                qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_COLD);
3118                if (ql2xmdenable) {
3119                        if (qla82xx_md_collect(vha))
3120                                ql_log(ql_log_warn, vha, 0xb02c,
3121                                    "Not able to collect minidump.\n");
3122                } else
3123                        ql_log(ql_log_warn, vha, 0xb04f,
3124                            "Minidump disabled.\n");
3125        }
3126}
3127
3128int
3129qla82xx_check_md_needed(scsi_qla_host_t *vha)
3130{
3131        struct qla_hw_data *ha = vha->hw;
3132        uint16_t fw_major_version, fw_minor_version, fw_subminor_version;
3133        int rval = QLA_SUCCESS;
3134
3135        fw_major_version = ha->fw_major_version;
3136        fw_minor_version = ha->fw_minor_version;
3137        fw_subminor_version = ha->fw_subminor_version;
3138
3139        rval = qla2x00_get_fw_version(vha, &ha->fw_major_version,
3140            &ha->fw_minor_version, &ha->fw_subminor_version,
3141            &ha->fw_attributes, &ha->fw_memory_size,
3142            ha->mpi_version, &ha->mpi_capabilities,
3143            ha->phy_version);
3144
3145        if (rval != QLA_SUCCESS)
3146                return rval;
3147
3148        if (ql2xmdenable) {
3149                if (!ha->fw_dumped) {
3150                        if (fw_major_version != ha->fw_major_version ||
3151                            fw_minor_version != ha->fw_minor_version ||
3152                            fw_subminor_version != ha->fw_subminor_version) {
3153
3154                                ql_log(ql_log_info, vha, 0xb02d,
3155                                    "Firmware version differs "
3156                                    "Previous version: %d:%d:%d - "
3157                                    "New version: %d:%d:%d\n",
3158                                    ha->fw_major_version,
3159                                    ha->fw_minor_version,
3160                                    ha->fw_subminor_version,
3161                                    fw_major_version, fw_minor_version,
3162                                    fw_subminor_version);
3163                                /* Release MiniDump resources */
3164                                qla82xx_md_free(vha);
3165                                /* ALlocate MiniDump resources */
3166                                qla82xx_md_prep(vha);
3167                        }
3168                } else
3169                        ql_log(ql_log_info, vha, 0xb02e,
3170                            "Firmware dump available to retrieve\n");
3171        }
3172        return rval;
3173}
3174
3175
3176int
3177qla82xx_check_fw_alive(scsi_qla_host_t *vha)
3178{
3179        uint32_t fw_heartbeat_counter;
3180        int status = 0;
3181
3182        fw_heartbeat_counter = qla82xx_rd_32(vha->hw,
3183                QLA82XX_PEG_ALIVE_COUNTER);
3184        /* all 0xff, assume AER/EEH in progress, ignore */
3185        if (fw_heartbeat_counter == 0xffffffff) {
3186                ql_dbg(ql_dbg_timer, vha, 0x6003,
3187                    "FW heartbeat counter is 0xffffffff, "
3188                    "returning status=%d.\n", status);
3189                return status;
3190        }
3191        if (vha->fw_heartbeat_counter == fw_heartbeat_counter) {
3192                vha->seconds_since_last_heartbeat++;
3193                /* FW not alive after 2 seconds */
3194                if (vha->seconds_since_last_heartbeat == 2) {
3195                        vha->seconds_since_last_heartbeat = 0;
3196                        status = 1;
3197                }
3198        } else
3199                vha->seconds_since_last_heartbeat = 0;
3200        vha->fw_heartbeat_counter = fw_heartbeat_counter;
3201        if (status)
3202                ql_dbg(ql_dbg_timer, vha, 0x6004,
3203                    "Returning status=%d.\n", status);
3204        return status;
3205}
3206
3207/*
3208 * qla82xx_device_state_handler
3209 *      Main state handler
3210 *
3211 * Note:
3212 *      IDC lock must be held upon entry
3213 *
3214 * Return:
3215 *    Success : 0
3216 *    Failed  : 1
3217 */
3218int
3219qla82xx_device_state_handler(scsi_qla_host_t *vha)
3220{
3221        uint32_t dev_state;
3222        uint32_t old_dev_state;
3223        int rval = QLA_SUCCESS;
3224        unsigned long dev_init_timeout;
3225        struct qla_hw_data *ha = vha->hw;
3226        int loopcount = 0;
3227
3228        qla82xx_idc_lock(ha);
3229        if (!vha->flags.init_done)
3230                qla82xx_set_drv_active(vha);
3231
3232        dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3233        old_dev_state = dev_state;
3234        ql_log(ql_log_info, vha, 0x009b,
3235            "Device state is 0x%x = %s.\n",
3236            dev_state,
3237            dev_state < MAX_STATES ? qdev_state(dev_state) : "Unknown");
3238
3239        /* wait for 30 seconds for device to go ready */
3240        dev_init_timeout = jiffies + (ha->nx_dev_init_timeout * HZ);
3241
3242        while (1) {
3243
3244                if (time_after_eq(jiffies, dev_init_timeout)) {
3245                        ql_log(ql_log_fatal, vha, 0x009c,
3246                            "Device init failed.\n");
3247                        rval = QLA_FUNCTION_FAILED;
3248                        break;
3249                }
3250                dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3251                if (old_dev_state != dev_state) {
3252                        loopcount = 0;
3253                        old_dev_state = dev_state;
3254                }
3255                if (loopcount < 5) {
3256                        ql_log(ql_log_info, vha, 0x009d,
3257                            "Device state is 0x%x = %s.\n",
3258                            dev_state,
3259                            dev_state < MAX_STATES ? qdev_state(dev_state) :
3260                            "Unknown");
3261                }
3262
3263                switch (dev_state) {
3264                case QLA82XX_DEV_READY:
3265                        ha->flags.isp82xx_reset_owner = 0;
3266                        goto exit;
3267                case QLA82XX_DEV_COLD:
3268                        rval = qla82xx_device_bootstrap(vha);
3269                        break;
3270                case QLA82XX_DEV_INITIALIZING:
3271                        qla82xx_idc_unlock(ha);
3272                        msleep(1000);
3273                        qla82xx_idc_lock(ha);
3274                        break;
3275                case QLA82XX_DEV_NEED_RESET:
3276                        if (!ql2xdontresethba)
3277                                qla82xx_need_reset_handler(vha);
3278                        else {
3279                                qla82xx_idc_unlock(ha);
3280                                msleep(1000);
3281                                qla82xx_idc_lock(ha);
3282                        }
3283                        dev_init_timeout = jiffies +
3284                            (ha->nx_dev_init_timeout * HZ);
3285                        break;
3286                case QLA82XX_DEV_NEED_QUIESCENT:
3287                        qla82xx_need_qsnt_handler(vha);
3288                        /* Reset timeout value after quiescence handler */
3289                        dev_init_timeout = jiffies + (ha->nx_dev_init_timeout\
3290                                                         * HZ);
3291                        break;
3292                case QLA82XX_DEV_QUIESCENT:
3293                        /* Owner will exit and other will wait for the state
3294                         * to get changed
3295                         */
3296                        if (ha->flags.quiesce_owner)
3297                                goto exit;
3298
3299                        qla82xx_idc_unlock(ha);
3300                        msleep(1000);
3301                        qla82xx_idc_lock(ha);
3302
3303                        /* Reset timeout value after quiescence handler */
3304                        dev_init_timeout = jiffies + (ha->nx_dev_init_timeout\
3305                                                         * HZ);
3306                        break;
3307                case QLA82XX_DEV_FAILED:
3308                        qla82xx_dev_failed_handler(vha);
3309                        rval = QLA_FUNCTION_FAILED;
3310                        goto exit;
3311                default:
3312                        qla82xx_idc_unlock(ha);
3313                        msleep(1000);
3314                        qla82xx_idc_lock(ha);
3315                }
3316                loopcount++;
3317        }
3318exit:
3319        qla82xx_idc_unlock(ha);
3320        return rval;
3321}
3322
3323void qla82xx_clear_pending_mbx(scsi_qla_host_t *vha)
3324{
3325        struct qla_hw_data *ha = vha->hw;
3326
3327        if (ha->flags.mbox_busy) {
3328                ha->flags.mbox_int = 1;
3329                ha->flags.mbox_busy = 0;
3330                ql_log(ql_log_warn, vha, 0x6010,
3331                    "Doing premature completion of mbx command.\n");
3332                if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags))
3333                        complete(&ha->mbx_intr_comp);
3334        }
3335}
3336
3337void qla82xx_watchdog(scsi_qla_host_t *vha)
3338{
3339        uint32_t dev_state, halt_status;
3340        struct qla_hw_data *ha = vha->hw;
3341
3342        /* don't poll if reset is going on */
3343        if (!ha->flags.isp82xx_reset_hdlr_active) {
3344                dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3345                if (dev_state == QLA82XX_DEV_NEED_RESET &&
3346                    !test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags)) {
3347                        ql_log(ql_log_warn, vha, 0x6001,
3348                            "Adapter reset needed.\n");
3349                        set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3350                        qla2xxx_wake_dpc(vha);
3351                } else if (dev_state == QLA82XX_DEV_NEED_QUIESCENT &&
3352                        !test_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags)) {
3353                        ql_log(ql_log_warn, vha, 0x6002,
3354                            "Quiescent needed.\n");
3355                        set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
3356                        qla2xxx_wake_dpc(vha);
3357                } else {
3358                        if (qla82xx_check_fw_alive(vha)) {
3359                                ql_dbg(ql_dbg_timer, vha, 0x6011,
3360                                    "disabling pause transmit on port 0 & 1.\n");
3361                                qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
3362                                    CRB_NIU_XG_PAUSE_CTL_P0|CRB_NIU_XG_PAUSE_CTL_P1);
3363                                halt_status = qla82xx_rd_32(ha,
3364                                    QLA82XX_PEG_HALT_STATUS1);
3365                                ql_log(ql_log_info, vha, 0x6005,
3366                                    "dumping hw/fw registers:.\n "
3367                                    " PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,.\n "
3368                                    " PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,.\n "
3369                                    " PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,.\n "
3370                                    " PEG_NET_4_PC: 0x%x.\n", halt_status,
3371                                    qla82xx_rd_32(ha, QLA82XX_PEG_HALT_STATUS2),
3372                                    qla82xx_rd_32(ha,
3373                                            QLA82XX_CRB_PEG_NET_0 + 0x3c),
3374                                    qla82xx_rd_32(ha,
3375                                            QLA82XX_CRB_PEG_NET_1 + 0x3c),
3376                                    qla82xx_rd_32(ha,
3377                                            QLA82XX_CRB_PEG_NET_2 + 0x3c),
3378                                    qla82xx_rd_32(ha,
3379                                            QLA82XX_CRB_PEG_NET_3 + 0x3c),
3380                                    qla82xx_rd_32(ha,
3381                                            QLA82XX_CRB_PEG_NET_4 + 0x3c));
3382                                if (((halt_status & 0x1fffff00) >> 8) == 0x67)
3383                                        ql_log(ql_log_warn, vha, 0xb052,
3384                                            "Firmware aborted with "
3385                                            "error code 0x00006700. Device is "
3386                                            "being reset.\n");
3387                                if (halt_status & HALT_STATUS_UNRECOVERABLE) {
3388                                        set_bit(ISP_UNRECOVERABLE,
3389                                            &vha->dpc_flags);
3390                                } else {
3391                                        ql_log(ql_log_info, vha, 0x6006,
3392                                            "Detect abort  needed.\n");
3393                                        set_bit(ISP_ABORT_NEEDED,
3394                                            &vha->dpc_flags);
3395                                }
3396                                qla2xxx_wake_dpc(vha);
3397                                ha->flags.isp82xx_fw_hung = 1;
3398                                ql_log(ql_log_warn, vha, 0x6007, "Firmware hung.\n");
3399                                qla82xx_clear_pending_mbx(vha);
3400                        }
3401                }
3402        }
3403}
3404
3405int qla82xx_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
3406{
3407        int rval;
3408        rval = qla82xx_device_state_handler(vha);
3409        return rval;
3410}
3411
3412void
3413qla82xx_set_reset_owner(scsi_qla_host_t *vha)
3414{
3415        struct qla_hw_data *ha = vha->hw;
3416        uint32_t dev_state;
3417
3418        dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3419        if (dev_state == QLA82XX_DEV_READY) {
3420                ql_log(ql_log_info, vha, 0xb02f,
3421                    "HW State: NEED RESET\n");
3422                qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3423                        QLA82XX_DEV_NEED_RESET);
3424                ha->flags.isp82xx_reset_owner = 1;
3425                ql_dbg(ql_dbg_p3p, vha, 0xb030,
3426                    "reset_owner is 0x%x\n", ha->portnum);
3427        } else
3428                ql_log(ql_log_info, vha, 0xb031,
3429                    "Device state is 0x%x = %s.\n",
3430                    dev_state,
3431                    dev_state < MAX_STATES ? qdev_state(dev_state) : "Unknown");
3432}
3433
3434/*
3435 *  qla82xx_abort_isp
3436 *      Resets ISP and aborts all outstanding commands.
3437 *
3438 * Input:
3439 *      ha           = adapter block pointer.
3440 *
3441 * Returns:
3442 *      0 = success
3443 */
3444int
3445qla82xx_abort_isp(scsi_qla_host_t *vha)
3446{
3447        int rval;
3448        struct qla_hw_data *ha = vha->hw;
3449
3450        if (vha->device_flags & DFLG_DEV_FAILED) {
3451                ql_log(ql_log_warn, vha, 0x8024,
3452                    "Device in failed state, exiting.\n");
3453                return QLA_SUCCESS;
3454        }
3455        ha->flags.isp82xx_reset_hdlr_active = 1;
3456
3457        qla82xx_idc_lock(ha);
3458        qla82xx_set_reset_owner(vha);
3459        qla82xx_idc_unlock(ha);
3460
3461        rval = qla82xx_device_state_handler(vha);
3462
3463        qla82xx_idc_lock(ha);
3464        qla82xx_clear_rst_ready(ha);
3465        qla82xx_idc_unlock(ha);
3466
3467        if (rval == QLA_SUCCESS) {
3468                ha->flags.isp82xx_fw_hung = 0;
3469                ha->flags.isp82xx_reset_hdlr_active = 0;
3470                qla82xx_restart_isp(vha);
3471        }
3472
3473        if (rval) {
3474                vha->flags.online = 1;
3475                if (test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
3476                        if (ha->isp_abort_cnt == 0) {
3477                                ql_log(ql_log_warn, vha, 0x8027,
3478                                    "ISP error recover failed - board "
3479                                    "disabled.\n");
3480                                /*
3481                                 * The next call disables the board
3482                                 * completely.
3483                                 */
3484                                ha->isp_ops->reset_adapter(vha);
3485                                vha->flags.online = 0;
3486                                clear_bit(ISP_ABORT_RETRY,
3487                                    &vha->dpc_flags);
3488                                rval = QLA_SUCCESS;
3489                        } else { /* schedule another ISP abort */
3490                                ha->isp_abort_cnt--;
3491                                ql_log(ql_log_warn, vha, 0x8036,
3492                                    "ISP abort - retry remaining %d.\n",
3493                                    ha->isp_abort_cnt);
3494                                rval = QLA_FUNCTION_FAILED;
3495                        }
3496                } else {
3497                        ha->isp_abort_cnt = MAX_RETRIES_OF_ISP_ABORT;
3498                        ql_dbg(ql_dbg_taskm, vha, 0x8029,
3499                            "ISP error recovery - retrying (%d) more times.\n",
3500                            ha->isp_abort_cnt);
3501                        set_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
3502                        rval = QLA_FUNCTION_FAILED;
3503                }
3504        }
3505        return rval;
3506}
3507
3508/*
3509 *  qla82xx_fcoe_ctx_reset
3510 *      Perform a quick reset and aborts all outstanding commands.
3511 *      This will only perform an FCoE context reset and avoids a full blown
3512 *      chip reset.
3513 *
3514 * Input:
3515 *      ha = adapter block pointer.
3516 *      is_reset_path = flag for identifying the reset path.
3517 *
3518 * Returns:
3519 *      0 = success
3520 */
3521int qla82xx_fcoe_ctx_reset(scsi_qla_host_t *vha)
3522{
3523        int rval = QLA_FUNCTION_FAILED;
3524
3525        if (vha->flags.online) {
3526                /* Abort all outstanding commands, so as to be requeued later */
3527                qla2x00_abort_isp_cleanup(vha);
3528        }
3529
3530        /* Stop currently executing firmware.
3531         * This will destroy existing FCoE context at the F/W end.
3532         */
3533        qla2x00_try_to_stop_firmware(vha);
3534
3535        /* Restart. Creates a new FCoE context on INIT_FIRMWARE. */
3536        rval = qla82xx_restart_isp(vha);
3537
3538        return rval;
3539}
3540
3541/*
3542 * qla2x00_wait_for_fcoe_ctx_reset
3543 *    Wait till the FCoE context is reset.
3544 *
3545 * Note:
3546 *    Does context switching here.
3547 *    Release SPIN_LOCK (if any) before calling this routine.
3548 *
3549 * Return:
3550 *    Success (fcoe_ctx reset is done) : 0
3551 *    Failed  (fcoe_ctx reset not completed within max loop timout ) : 1
3552 */
3553int qla2x00_wait_for_fcoe_ctx_reset(scsi_qla_host_t *vha)
3554{
3555        int status = QLA_FUNCTION_FAILED;
3556        unsigned long wait_reset;
3557
3558        wait_reset = jiffies + (MAX_LOOP_TIMEOUT * HZ);
3559        while ((test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) ||
3560            test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
3561            && time_before(jiffies, wait_reset)) {
3562
3563                set_current_state(TASK_UNINTERRUPTIBLE);
3564                schedule_timeout(HZ);
3565
3566                if (!test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) &&
3567                    !test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) {
3568                        status = QLA_SUCCESS;
3569                        break;
3570                }
3571        }
3572        ql_dbg(ql_dbg_p3p, vha, 0xb027,
3573               "%s: status=%d.\n", __func__, status);
3574
3575        return status;
3576}
3577
3578void
3579qla82xx_chip_reset_cleanup(scsi_qla_host_t *vha)
3580{
3581        int i;
3582        unsigned long flags;
3583        struct qla_hw_data *ha = vha->hw;
3584
3585        /* Check if 82XX firmware is alive or not
3586         * We may have arrived here from NEED_RESET
3587         * detection only
3588         */
3589        if (!ha->flags.isp82xx_fw_hung) {
3590                for (i = 0; i < 2; i++) {
3591                        msleep(1000);
3592                        if (qla82xx_check_fw_alive(vha)) {
3593                                ha->flags.isp82xx_fw_hung = 1;
3594                                qla82xx_clear_pending_mbx(vha);
3595                                break;
3596                        }
3597                }
3598        }
3599        ql_dbg(ql_dbg_init, vha, 0x00b0,
3600            "Entered %s fw_hung=%d.\n",
3601            __func__, ha->flags.isp82xx_fw_hung);
3602
3603        /* Abort all commands gracefully if fw NOT hung */
3604        if (!ha->flags.isp82xx_fw_hung) {
3605                int cnt, que;
3606                srb_t *sp;
3607                struct req_que *req;
3608
3609                spin_lock_irqsave(&ha->hardware_lock, flags);
3610                for (que = 0; que < ha->max_req_queues; que++) {
3611                        req = ha->req_q_map[que];
3612                        if (!req)
3613                                continue;
3614                        for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
3615                                sp = req->outstanding_cmds[cnt];
3616                                if (sp) {
3617                                        if (!sp->ctx ||
3618                                            (sp->flags & SRB_FCP_CMND_DMA_VALID)) {
3619                                                spin_unlock_irqrestore(
3620                                                    &ha->hardware_lock, flags);
3621                                                if (ha->isp_ops->abort_command(sp)) {
3622                                                        ql_log(ql_log_info, vha,
3623                                                            0x00b1,
3624                                                            "mbx abort failed.\n");
3625                                                } else {
3626                                                        ql_log(ql_log_info, vha,
3627                                                            0x00b2,
3628                                                            "mbx abort success.\n");
3629                                                }
3630                                                spin_lock_irqsave(&ha->hardware_lock, flags);
3631                                        }
3632                                }
3633                        }
3634                }
3635                spin_unlock_irqrestore(&ha->hardware_lock, flags);
3636
3637                /* Wait for pending cmds (physical and virtual) to complete */
3638                if (!qla2x00_eh_wait_for_pending_commands(vha, 0, 0,
3639                    WAIT_HOST) == QLA_SUCCESS) {
3640                        ql_dbg(ql_dbg_init, vha, 0x00b3,
3641                            "Done wait for "
3642                            "pending commands.\n");
3643                }
3644        }
3645}
3646
3647/* Minidump related functions */
3648int
3649qla82xx_md_rw_32(struct qla_hw_data *ha, uint32_t off, u32 data, uint8_t flag)
3650{
3651        uint32_t  off_value, rval = 0;
3652
3653        WRT_REG_DWORD((void *)(CRB_WINDOW_2M + ha->nx_pcibase),
3654            (off & 0xFFFF0000));
3655
3656        /* Read back value to make sure write has gone through */
3657        RD_REG_DWORD((void *)(CRB_WINDOW_2M + ha->nx_pcibase));
3658        off_value  = (off & 0x0000FFFF);
3659
3660        if (flag)
3661                WRT_REG_DWORD((void *)
3662                    (off_value + CRB_INDIRECT_2M + ha->nx_pcibase),
3663                    data);
3664        else
3665                rval = RD_REG_DWORD((void *)
3666                    (off_value + CRB_INDIRECT_2M + ha->nx_pcibase));
3667
3668        return rval;
3669}
3670
3671static int
3672qla82xx_minidump_process_control(scsi_qla_host_t *vha,
3673        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3674{
3675        struct qla_hw_data *ha = vha->hw;
3676        struct qla82xx_md_entry_crb *crb_entry;
3677        uint32_t read_value, opcode, poll_time;
3678        uint32_t addr, index, crb_addr;
3679        unsigned long wtime;
3680        struct qla82xx_md_template_hdr *tmplt_hdr;
3681        uint32_t rval = QLA_SUCCESS;
3682        int i;
3683
3684        tmplt_hdr = (struct qla82xx_md_template_hdr *)ha->md_tmplt_hdr;
3685        crb_entry = (struct qla82xx_md_entry_crb *)entry_hdr;
3686        crb_addr = crb_entry->addr;
3687
3688        for (i = 0; i < crb_entry->op_count; i++) {
3689                opcode = crb_entry->crb_ctrl.opcode;
3690                if (opcode & QLA82XX_DBG_OPCODE_WR) {
3691                        qla82xx_md_rw_32(ha, crb_addr,
3692                            crb_entry->value_1, 1);
3693                        opcode &= ~QLA82XX_DBG_OPCODE_WR;
3694                }
3695
3696                if (opcode & QLA82XX_DBG_OPCODE_RW) {
3697                        read_value = qla82xx_md_rw_32(ha, crb_addr, 0, 0);
3698                        qla82xx_md_rw_32(ha, crb_addr, read_value, 1);
3699                        opcode &= ~QLA82XX_DBG_OPCODE_RW;
3700                }
3701
3702                if (opcode & QLA82XX_DBG_OPCODE_AND) {
3703                        read_value = qla82xx_md_rw_32(ha, crb_addr, 0, 0);
3704                        read_value &= crb_entry->value_2;
3705                        opcode &= ~QLA82XX_DBG_OPCODE_AND;
3706                        if (opcode & QLA82XX_DBG_OPCODE_OR) {
3707                                read_value |= crb_entry->value_3;
3708                                opcode &= ~QLA82XX_DBG_OPCODE_OR;
3709                        }
3710                        qla82xx_md_rw_32(ha, crb_addr, read_value, 1);
3711                }
3712
3713                if (opcode & QLA82XX_DBG_OPCODE_OR) {
3714                        read_value = qla82xx_md_rw_32(ha, crb_addr, 0, 0);
3715                        read_value |= crb_entry->value_3;
3716                        qla82xx_md_rw_32(ha, crb_addr, read_value, 1);
3717                        opcode &= ~QLA82XX_DBG_OPCODE_OR;
3718                }
3719
3720                if (opcode & QLA82XX_DBG_OPCODE_POLL) {
3721                        poll_time = crb_entry->crb_strd.poll_timeout;
3722                        wtime = jiffies + poll_time;
3723                        read_value = qla82xx_md_rw_32(ha, crb_addr, 0, 0);
3724
3725                        do {
3726                                if ((read_value & crb_entry->value_2)
3727                                    == crb_entry->value_1)
3728                                        break;
3729                                else if (time_after_eq(jiffies, wtime)) {
3730                                        /* capturing dump failed */
3731                                        rval = QLA_FUNCTION_FAILED;
3732                                        break;
3733                                } else
3734                                        read_value = qla82xx_md_rw_32(ha,
3735                                            crb_addr, 0, 0);
3736                        } while (1);
3737                        opcode &= ~QLA82XX_DBG_OPCODE_POLL;
3738                }
3739
3740                if (opcode & QLA82XX_DBG_OPCODE_RDSTATE) {
3741                        if (crb_entry->crb_strd.state_index_a) {
3742                                index = crb_entry->crb_strd.state_index_a;
3743                                addr = tmplt_hdr->saved_state_array[index];
3744                        } else
3745                                addr = crb_addr;
3746
3747                        read_value = qla82xx_md_rw_32(ha, addr, 0, 0);
3748                        index = crb_entry->crb_ctrl.state_index_v;
3749                        tmplt_hdr->saved_state_array[index] = read_value;
3750                        opcode &= ~QLA82XX_DBG_OPCODE_RDSTATE;
3751                }
3752
3753                if (opcode & QLA82XX_DBG_OPCODE_WRSTATE) {
3754                        if (crb_entry->crb_strd.state_index_a) {
3755                                index = crb_entry->crb_strd.state_index_a;
3756                                addr = tmplt_hdr->saved_state_array[index];
3757                        } else
3758                                addr = crb_addr;
3759
3760                        if (crb_entry->crb_ctrl.state_index_v) {
3761                                index = crb_entry->crb_ctrl.state_index_v;
3762                                read_value =
3763                                    tmplt_hdr->saved_state_array[index];
3764                        } else
3765                                read_value = crb_entry->value_1;
3766
3767                        qla82xx_md_rw_32(ha, addr, read_value, 1);
3768                        opcode &= ~QLA82XX_DBG_OPCODE_WRSTATE;
3769                }
3770
3771                if (opcode & QLA82XX_DBG_OPCODE_MDSTATE) {
3772                        index = crb_entry->crb_ctrl.state_index_v;
3773                        read_value = tmplt_hdr->saved_state_array[index];
3774                        read_value <<= crb_entry->crb_ctrl.shl;
3775                        read_value >>= crb_entry->crb_ctrl.shr;
3776                        if (crb_entry->value_2)
3777                                read_value &= crb_entry->value_2;
3778                        read_value |= crb_entry->value_3;
3779                        read_value += crb_entry->value_1;
3780                        tmplt_hdr->saved_state_array[index] = read_value;
3781                        opcode &= ~QLA82XX_DBG_OPCODE_MDSTATE;
3782                }
3783                crb_addr += crb_entry->crb_strd.addr_stride;
3784        }
3785        return rval;
3786}
3787
3788static void
3789qla82xx_minidump_process_rdocm(scsi_qla_host_t *vha,
3790        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3791{
3792        struct qla_hw_data *ha = vha->hw;
3793        uint32_t r_addr, r_stride, loop_cnt, i, r_value;
3794        struct qla82xx_md_entry_rdocm *ocm_hdr;
3795        uint32_t *data_ptr = *d_ptr;
3796
3797        ocm_hdr = (struct qla82xx_md_entry_rdocm *)entry_hdr;
3798        r_addr = ocm_hdr->read_addr;
3799        r_stride = ocm_hdr->read_addr_stride;
3800        loop_cnt = ocm_hdr->op_count;
3801
3802        for (i = 0; i < loop_cnt; i++) {
3803                r_value = RD_REG_DWORD((void *)(r_addr + ha->nx_pcibase));
3804                *data_ptr++ = cpu_to_le32(r_value);
3805                r_addr += r_stride;
3806        }
3807        *d_ptr = data_ptr;
3808}
3809
3810static void
3811qla82xx_minidump_process_rdmux(scsi_qla_host_t *vha,
3812        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3813{
3814        struct qla_hw_data *ha = vha->hw;
3815        uint32_t r_addr, s_stride, s_addr, s_value, loop_cnt, i, r_value;
3816        struct qla82xx_md_entry_mux *mux_hdr;
3817        uint32_t *data_ptr = *d_ptr;
3818
3819        mux_hdr = (struct qla82xx_md_entry_mux *)entry_hdr;
3820        r_addr = mux_hdr->read_addr;
3821        s_addr = mux_hdr->select_addr;
3822        s_stride = mux_hdr->select_value_stride;
3823        s_value = mux_hdr->select_value;
3824        loop_cnt = mux_hdr->op_count;
3825
3826        for (i = 0; i < loop_cnt; i++) {
3827                qla82xx_md_rw_32(ha, s_addr, s_value, 1);
3828                r_value = qla82xx_md_rw_32(ha, r_addr, 0, 0);
3829                *data_ptr++ = cpu_to_le32(s_value);
3830                *data_ptr++ = cpu_to_le32(r_value);
3831                s_value += s_stride;
3832        }
3833        *d_ptr = data_ptr;
3834}
3835
3836static void
3837qla82xx_minidump_process_rdcrb(scsi_qla_host_t *vha,
3838        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3839{
3840        struct qla_hw_data *ha = vha->hw;
3841        uint32_t r_addr, r_stride, loop_cnt, i, r_value;
3842        struct qla82xx_md_entry_crb *crb_hdr;
3843        uint32_t *data_ptr = *d_ptr;
3844
3845        crb_hdr = (struct qla82xx_md_entry_crb *)entry_hdr;
3846        r_addr = crb_hdr->addr;
3847        r_stride = crb_hdr->crb_strd.addr_stride;
3848        loop_cnt = crb_hdr->op_count;
3849
3850        for (i = 0; i < loop_cnt; i++) {
3851                r_value = qla82xx_md_rw_32(ha, r_addr, 0, 0);
3852                *data_ptr++ = cpu_to_le32(r_addr);
3853                *data_ptr++ = cpu_to_le32(r_value);
3854                r_addr += r_stride;
3855        }
3856        *d_ptr = data_ptr;
3857}
3858
3859static int
3860qla82xx_minidump_process_l2tag(scsi_qla_host_t *vha,
3861        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3862{
3863        struct qla_hw_data *ha = vha->hw;
3864        uint32_t addr, r_addr, c_addr, t_r_addr;
3865        uint32_t i, k, loop_count, t_value, r_cnt, r_value;
3866        unsigned long p_wait, w_time, p_mask;
3867        uint32_t c_value_w, c_value_r;
3868        struct qla82xx_md_entry_cache *cache_hdr;
3869        int rval = QLA_FUNCTION_FAILED;
3870        uint32_t *data_ptr = *d_ptr;
3871
3872        cache_hdr = (struct qla82xx_md_entry_cache *)entry_hdr;
3873        loop_count = cache_hdr->op_count;
3874        r_addr = cache_hdr->read_addr;
3875        c_addr = cache_hdr->control_addr;
3876        c_value_w = cache_hdr->cache_ctrl.write_value;
3877
3878        t_r_addr = cache_hdr->tag_reg_addr;
3879        t_value = cache_hdr->addr_ctrl.init_tag_value;
3880        r_cnt = cache_hdr->read_ctrl.read_addr_cnt;
3881        p_wait = cache_hdr->cache_ctrl.poll_wait;
3882        p_mask = cache_hdr->cache_ctrl.poll_mask;
3883
3884        for (i = 0; i < loop_count; i++) {
3885                qla82xx_md_rw_32(ha, t_r_addr, t_value, 1);
3886                if (c_value_w)
3887                        qla82xx_md_rw_32(ha, c_addr, c_value_w, 1);
3888
3889                if (p_mask) {
3890                        w_time = jiffies + p_wait;
3891                        do {
3892                                c_value_r = qla82xx_md_rw_32(ha, c_addr, 0, 0);
3893                                if ((c_value_r & p_mask) == 0)
3894                                        break;
3895                                else if (time_after_eq(jiffies, w_time)) {
3896                                        /* capturing dump failed */
3897                                        ql_dbg(ql_dbg_p3p, vha, 0xb032,
3898                                            "c_value_r: 0x%x, poll_mask: 0x%lx, "
3899                                            "w_time: 0x%lx\n",
3900                                            c_value_r, p_mask, w_time);
3901                                        return rval;
3902                                }
3903                        } while (1);
3904                }
3905
3906                addr = r_addr;
3907                for (k = 0; k < r_cnt; k++) {
3908                        r_value = qla82xx_md_rw_32(ha, addr, 0, 0);
3909                        *data_ptr++ = cpu_to_le32(r_value);
3910                        addr += cache_hdr->read_ctrl.read_addr_stride;
3911                }
3912                t_value += cache_hdr->addr_ctrl.tag_value_stride;
3913        }
3914        *d_ptr = data_ptr;
3915        return QLA_SUCCESS;
3916}
3917
3918static void
3919qla82xx_minidump_process_l1cache(scsi_qla_host_t *vha,
3920        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3921{
3922        struct qla_hw_data *ha = vha->hw;
3923        uint32_t addr, r_addr, c_addr, t_r_addr;
3924        uint32_t i, k, loop_count, t_value, r_cnt, r_value;
3925        uint32_t c_value_w;
3926        struct qla82xx_md_entry_cache *cache_hdr;
3927        uint32_t *data_ptr = *d_ptr;
3928
3929        cache_hdr = (struct qla82xx_md_entry_cache *)entry_hdr;
3930        loop_count = cache_hdr->op_count;
3931        r_addr = cache_hdr->read_addr;
3932        c_addr = cache_hdr->control_addr;
3933        c_value_w = cache_hdr->cache_ctrl.write_value;
3934
3935        t_r_addr = cache_hdr->tag_reg_addr;
3936        t_value = cache_hdr->addr_ctrl.init_tag_value;
3937        r_cnt = cache_hdr->read_ctrl.read_addr_cnt;
3938
3939        for (i = 0; i < loop_count; i++) {
3940                qla82xx_md_rw_32(ha, t_r_addr, t_value, 1);
3941                qla82xx_md_rw_32(ha, c_addr, c_value_w, 1);
3942                addr = r_addr;
3943                for (k = 0; k < r_cnt; k++) {
3944                        r_value = qla82xx_md_rw_32(ha, addr, 0, 0);
3945                        *data_ptr++ = cpu_to_le32(r_value);
3946                        addr += cache_hdr->read_ctrl.read_addr_stride;
3947                }
3948                t_value += cache_hdr->addr_ctrl.tag_value_stride;
3949        }
3950        *d_ptr = data_ptr;
3951}
3952
3953static void
3954qla82xx_minidump_process_queue(scsi_qla_host_t *vha,
3955        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3956{
3957        struct qla_hw_data *ha = vha->hw;
3958        uint32_t s_addr, r_addr;
3959        uint32_t r_stride, r_value, r_cnt, qid = 0;
3960        uint32_t i, k, loop_cnt;
3961        struct qla82xx_md_entry_queue *q_hdr;
3962        uint32_t *data_ptr = *d_ptr;
3963
3964        q_hdr = (struct qla82xx_md_entry_queue *)entry_hdr;
3965        s_addr = q_hdr->select_addr;
3966        r_cnt = q_hdr->rd_strd.read_addr_cnt;
3967        r_stride = q_hdr->rd_strd.read_addr_stride;
3968        loop_cnt = q_hdr->op_count;
3969
3970        for (i = 0; i < loop_cnt; i++) {
3971                qla82xx_md_rw_32(ha, s_addr, qid, 1);
3972                r_addr = q_hdr->read_addr;
3973                for (k = 0; k < r_cnt; k++) {
3974                        r_value = qla82xx_md_rw_32(ha, r_addr, 0, 0);
3975                        *data_ptr++ = cpu_to_le32(r_value);
3976                        r_addr += r_stride;
3977                }
3978                qid += q_hdr->q_strd.queue_id_stride;
3979        }
3980        *d_ptr = data_ptr;
3981}
3982
3983static void
3984qla82xx_minidump_process_rdrom(scsi_qla_host_t *vha,
3985        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3986{
3987        struct qla_hw_data *ha = vha->hw;
3988        uint32_t r_addr, r_value;
3989        uint32_t i, loop_cnt;
3990        struct qla82xx_md_entry_rdrom *rom_hdr;
3991        uint32_t *data_ptr = *d_ptr;
3992
3993        rom_hdr = (struct qla82xx_md_entry_rdrom *)entry_hdr;
3994        r_addr = rom_hdr->read_addr;
3995        loop_cnt = rom_hdr->read_data_size/sizeof(uint32_t);
3996
3997        for (i = 0; i < loop_cnt; i++) {
3998                qla82xx_md_rw_32(ha, MD_DIRECT_ROM_WINDOW,
3999                    (r_addr & 0xFFFF0000), 1);
4000                r_value = qla82xx_md_rw_32(ha,
4001                    MD_DIRECT_ROM_READ_BASE +
4002                    (r_addr & 0x0000FFFF), 0, 0);
4003                *data_ptr++ = cpu_to_le32(r_value);
4004                r_addr += sizeof(uint32_t);
4005        }
4006        *d_ptr = data_ptr;
4007}
4008
4009static int
4010qla82xx_minidump_process_rdmem(scsi_qla_host_t *vha,
4011        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
4012{
4013        struct qla_hw_data *ha = vha->hw;
4014        uint32_t r_addr, r_value, r_data;
4015        uint32_t i, j, loop_cnt;
4016        struct qla82xx_md_entry_rdmem *m_hdr;
4017        unsigned long flags;
4018        int rval = QLA_FUNCTION_FAILED;
4019        uint32_t *data_ptr = *d_ptr;
4020
4021        m_hdr = (struct qla82xx_md_entry_rdmem *)entry_hdr;
4022        r_addr = m_hdr->read_addr;
4023        loop_cnt = m_hdr->read_data_size/16;
4024
4025        if (r_addr & 0xf) {
4026                ql_log(ql_log_warn, vha, 0xb033,
4027                    "Read addr 0x%x not 16 bytes alligned\n", r_addr);
4028                return rval;
4029        }
4030
4031        if (m_hdr->read_data_size % 16) {
4032                ql_log(ql_log_warn, vha, 0xb034,
4033                    "Read data[0x%x] not multiple of 16 bytes\n",
4034                    m_hdr->read_data_size);
4035                return rval;
4036        }
4037
4038        ql_dbg(ql_dbg_p3p, vha, 0xb035,
4039            "[%s]: rdmem_addr: 0x%x, read_data_size: 0x%x, loop_cnt: 0x%x\n",
4040            __func__, r_addr, m_hdr->read_data_size, loop_cnt);
4041
4042        write_lock_irqsave(&ha->hw_lock, flags);
4043        for (i = 0; i < loop_cnt; i++) {
4044                qla82xx_md_rw_32(ha, MD_MIU_TEST_AGT_ADDR_LO, r_addr, 1);
4045                r_value = 0;
4046                qla82xx_md_rw_32(ha, MD_MIU_TEST_AGT_ADDR_HI, r_value, 1);
4047                r_value = MIU_TA_CTL_ENABLE;
4048                qla82xx_md_rw_32(ha, MD_MIU_TEST_AGT_CTRL, r_value, 1);
4049                r_value = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE;
4050                qla82xx_md_rw_32(ha, MD_MIU_TEST_AGT_CTRL, r_value, 1);
4051
4052                for (j = 0; j < MAX_CTL_CHECK; j++) {
4053                        r_value = qla82xx_md_rw_32(ha,
4054                            MD_MIU_TEST_AGT_CTRL, 0, 0);
4055                        if ((r_value & MIU_TA_CTL_BUSY) == 0)
4056                                break;
4057                }
4058
4059                if (j >= MAX_CTL_CHECK) {
4060                        printk_ratelimited(KERN_ERR
4061                            "failed to read through agent\n");
4062                        write_unlock_irqrestore(&ha->hw_lock, flags);
4063                        return rval;
4064                }
4065
4066                for (j = 0; j < 4; j++) {
4067                        r_data = qla82xx_md_rw_32(ha,
4068                            MD_MIU_TEST_AGT_RDDATA[j], 0, 0);
4069                        *data_ptr++ = cpu_to_le32(r_data);
4070                }
4071                r_addr += 16;
4072        }
4073        write_unlock_irqrestore(&ha->hw_lock, flags);
4074        *d_ptr = data_ptr;
4075        return QLA_SUCCESS;
4076}
4077
4078static int
4079qla82xx_validate_template_chksum(scsi_qla_host_t *vha)
4080{
4081        struct qla_hw_data *ha = vha->hw;
4082        uint64_t chksum = 0;
4083        uint32_t *d_ptr = (uint32_t *)ha->md_tmplt_hdr;
4084        int count = ha->md_template_size/sizeof(uint32_t);
4085
4086        while (count-- > 0)
4087                chksum += *d_ptr++;
4088        while (chksum >> 32)
4089                chksum = (chksum & 0xFFFFFFFF) + (chksum >> 32);
4090        return ~chksum;
4091}
4092
4093static void
4094qla82xx_mark_entry_skipped(scsi_qla_host_t *vha,
4095        qla82xx_md_entry_hdr_t *entry_hdr, int index)
4096{
4097        entry_hdr->d_ctrl.driver_flags |= QLA82XX_DBG_SKIPPED_FLAG;
4098        ql_dbg(ql_dbg_p3p, vha, 0xb036,
4099            "Skipping entry[%d]: "
4100            "ETYPE[0x%x]-ELEVEL[0x%x]\n",
4101            index, entry_hdr->entry_type,
4102            entry_hdr->d_ctrl.entry_capture_mask);
4103}
4104
4105int
4106qla82xx_md_collect(scsi_qla_host_t *vha)
4107{
4108        struct qla_hw_data *ha = vha->hw;
4109        int no_entry_hdr = 0;
4110        qla82xx_md_entry_hdr_t *entry_hdr;
4111        struct qla82xx_md_template_hdr *tmplt_hdr;
4112        uint32_t *data_ptr;
4113        uint32_t total_data_size = 0, f_capture_mask, data_collected = 0;
4114        int i = 0, rval = QLA_FUNCTION_FAILED;
4115
4116        tmplt_hdr = (struct qla82xx_md_template_hdr *)ha->md_tmplt_hdr;
4117        data_ptr = (uint32_t *)ha->md_dump;
4118
4119        if (ha->fw_dumped) {
4120                ql_log(ql_log_info, vha, 0xb037,
4121                    "Firmware dump available to retrive\n");
4122                goto md_failed;
4123        }
4124
4125        ha->fw_dumped = 0;
4126
4127        if (!ha->md_tmplt_hdr || !ha->md_dump) {
4128                ql_log(ql_log_warn, vha, 0xb038,
4129                    "Memory not allocated for minidump capture\n");
4130                goto md_failed;
4131        }
4132
4133        if (qla82xx_validate_template_chksum(vha)) {
4134                ql_log(ql_log_info, vha, 0xb039,
4135                    "Template checksum validation error\n");
4136                goto md_failed;
4137        }
4138
4139        no_entry_hdr = tmplt_hdr->num_of_entries;
4140        ql_dbg(ql_dbg_p3p, vha, 0xb03a,
4141            "No of entry headers in Template: 0x%x\n", no_entry_hdr);
4142
4143        ql_dbg(ql_dbg_p3p, vha, 0xb03b,
4144            "Capture Mask obtained: 0x%x\n", tmplt_hdr->capture_debug_level);
4145
4146        f_capture_mask = tmplt_hdr->capture_debug_level & 0xFF;
4147
4148        /* Validate whether required debug level is set */
4149        if ((f_capture_mask & 0x3) != 0x3) {
4150                ql_log(ql_log_warn, vha, 0xb03c,
4151                    "Minimum required capture mask[0x%x] level not set\n",
4152                    f_capture_mask);
4153                goto md_failed;
4154        }
4155        tmplt_hdr->driver_capture_mask = ql2xmdcapmask;
4156
4157        tmplt_hdr->driver_info[0] = vha->host_no;
4158        tmplt_hdr->driver_info[1] = (QLA_DRIVER_MAJOR_VER << 24) |
4159            (QLA_DRIVER_MINOR_VER << 16) | (QLA_DRIVER_PATCH_VER << 8) |
4160            QLA_DRIVER_BETA_VER;
4161
4162        total_data_size = ha->md_dump_size;
4163
4164        ql_dbg(ql_log_info, vha, 0xb03d,
4165            "Total minidump data_size 0x%x to be captured\n", total_data_size);
4166
4167        /* Check whether template obtained is valid */
4168        if (tmplt_hdr->entry_type != QLA82XX_TLHDR) {
4169                ql_log(ql_log_warn, vha, 0xb04e,
4170                    "Bad template header entry type: 0x%x obtained\n",
4171                    tmplt_hdr->entry_type);
4172                goto md_failed;
4173        }
4174
4175        entry_hdr = (qla82xx_md_entry_hdr_t *) \
4176            (((uint8_t *)ha->md_tmplt_hdr) + tmplt_hdr->first_entry_offset);
4177
4178        /* Walk through the entry headers */
4179        for (i = 0; i < no_entry_hdr; i++) {
4180
4181                if (data_collected > total_data_size) {
4182                        ql_log(ql_log_warn, vha, 0xb03e,
4183                            "More MiniDump data collected: [0x%x]\n",
4184                            data_collected);
4185                        goto md_failed;
4186                }
4187
4188                if (!(entry_hdr->d_ctrl.entry_capture_mask &
4189                    ql2xmdcapmask)) {
4190                        entry_hdr->d_ctrl.driver_flags |=
4191                            QLA82XX_DBG_SKIPPED_FLAG;
4192                        ql_dbg(ql_dbg_p3p, vha, 0xb03f,
4193                            "Skipping entry[%d]: "
4194                            "ETYPE[0x%x]-ELEVEL[0x%x]\n",
4195                            i, entry_hdr->entry_type,
4196                            entry_hdr->d_ctrl.entry_capture_mask);
4197                        goto skip_nxt_entry;
4198                }
4199
4200                ql_dbg(ql_dbg_p3p, vha, 0xb040,
4201                    "[%s]: data ptr[%d]: %p, entry_hdr: %p\n"
4202                    "entry_type: 0x%x, captrue_mask: 0x%x\n",
4203                    __func__, i, data_ptr, entry_hdr,
4204                    entry_hdr->entry_type,
4205                    entry_hdr->d_ctrl.entry_capture_mask);
4206
4207                ql_dbg(ql_dbg_p3p, vha, 0xb041,
4208                    "Data collected: [0x%x], Dump size left:[0x%x]\n",
4209                    data_collected, (ha->md_dump_size - data_collected));
4210
4211                /* Decode the entry type and take
4212                 * required action to capture debug data */
4213                switch (entry_hdr->entry_type) {
4214                case QLA82XX_RDEND:
4215                        qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4216                        break;
4217                case QLA82XX_CNTRL:
4218                        rval = qla82xx_minidump_process_control(vha,
4219                            entry_hdr, &data_ptr);
4220                        if (rval != QLA_SUCCESS) {
4221                                qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4222                                goto md_failed;
4223                        }
4224                        break;
4225                case QLA82XX_RDCRB:
4226                        qla82xx_minidump_process_rdcrb(vha,
4227                            entry_hdr, &data_ptr);
4228                        break;
4229                case QLA82XX_RDMEM:
4230                        rval = qla82xx_minidump_process_rdmem(vha,
4231                            entry_hdr, &data_ptr);
4232                        if (rval != QLA_SUCCESS) {
4233                                qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4234                                goto md_failed;
4235                        }
4236                        break;
4237                case QLA82XX_BOARD:
4238                case QLA82XX_RDROM:
4239                        qla82xx_minidump_process_rdrom(vha,
4240                            entry_hdr, &data_ptr);
4241                        break;
4242                case QLA82XX_L2DTG:
4243                case QLA82XX_L2ITG:
4244                case QLA82XX_L2DAT:
4245                case QLA82XX_L2INS:
4246                        rval = qla82xx_minidump_process_l2tag(vha,
4247                            entry_hdr, &data_ptr);
4248                        if (rval != QLA_SUCCESS) {
4249                                qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4250                                goto md_failed;
4251                        }
4252                        break;
4253                case QLA82XX_L1DAT:
4254                case QLA82XX_L1INS:
4255                        qla82xx_minidump_process_l1cache(vha,
4256                            entry_hdr, &data_ptr);
4257                        break;
4258                case QLA82XX_RDOCM:
4259                        qla82xx_minidump_process_rdocm(vha,
4260                            entry_hdr, &data_ptr);
4261                        break;
4262                case QLA82XX_RDMUX:
4263                        qla82xx_minidump_process_rdmux(vha,
4264                            entry_hdr, &data_ptr);
4265                        break;
4266                case QLA82XX_QUEUE:
4267                        qla82xx_minidump_process_queue(vha,
4268                            entry_hdr, &data_ptr);
4269                        break;
4270                case QLA82XX_RDNOP:
4271                default:
4272                        qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4273                        break;
4274                }
4275
4276                ql_dbg(ql_dbg_p3p, vha, 0xb042,
4277                    "[%s]: data ptr[%d]: %p\n", __func__, i, data_ptr);
4278
4279                data_collected = (uint8_t *)data_ptr -
4280                    (uint8_t *)ha->md_dump;
4281skip_nxt_entry:
4282                entry_hdr = (qla82xx_md_entry_hdr_t *) \
4283                    (((uint8_t *)entry_hdr) + entry_hdr->entry_size);
4284        }
4285
4286        if (data_collected != total_data_size) {
4287                ql_dbg(ql_log_warn, vha, 0xb043,
4288                    "MiniDump data mismatch: Data collected: [0x%x],"
4289                    "total_data_size:[0x%x]\n",
4290                    data_collected, total_data_size);
4291                goto md_failed;
4292        }
4293
4294        ql_log(ql_log_info, vha, 0xb044,
4295            "Firmware dump saved to temp buffer (%ld/%p %ld/%p).\n",
4296            vha->host_no, ha->md_tmplt_hdr, vha->host_no, ha->md_dump);
4297        ha->fw_dumped = 1;
4298        qla2x00_post_uevent_work(vha, QLA_UEVENT_CODE_FW_DUMP);
4299
4300md_failed:
4301        return rval;
4302}
4303
4304int
4305qla82xx_md_alloc(scsi_qla_host_t *vha)
4306{
4307        struct qla_hw_data *ha = vha->hw;
4308        int i, k;
4309        struct qla82xx_md_template_hdr *tmplt_hdr;
4310
4311        tmplt_hdr = (struct qla82xx_md_template_hdr *)ha->md_tmplt_hdr;
4312
4313        if (ql2xmdcapmask < 0x3 || ql2xmdcapmask > 0x7F) {
4314                ql2xmdcapmask = tmplt_hdr->capture_debug_level & 0xFF;
4315                ql_log(ql_log_info, vha, 0xb045,
4316                    "Forcing driver capture mask to firmware default capture mask: 0x%x.\n",
4317                    ql2xmdcapmask);
4318        }
4319
4320        for (i = 0x2, k = 1; (i & QLA82XX_DEFAULT_CAP_MASK); i <<= 1, k++) {
4321                if (i & ql2xmdcapmask)
4322                        ha->md_dump_size += tmplt_hdr->capture_size_array[k];
4323        }
4324
4325        if (ha->md_dump) {
4326                ql_log(ql_log_warn, vha, 0xb046,
4327                    "Firmware dump previously allocated.\n");
4328                return 1;
4329        }
4330
4331        ha->md_dump = vmalloc(ha->md_dump_size);
4332        if (ha->md_dump == NULL) {
4333                ql_log(ql_log_warn, vha, 0xb047,
4334                    "Unable to allocate memory for Minidump size "
4335                    "(0x%x).\n", ha->md_dump_size);
4336                return 1;
4337        }
4338        return 0;
4339}
4340
4341void
4342qla82xx_md_free(scsi_qla_host_t *vha)
4343{
4344        struct qla_hw_data *ha = vha->hw;
4345
4346        /* Release the template header allocated */
4347        if (ha->md_tmplt_hdr) {
4348                ql_log(ql_log_info, vha, 0xb048,
4349                    "Free MiniDump template: %p, size (%d KB)\n",
4350                    ha->md_tmplt_hdr, ha->md_template_size / 1024);
4351                dma_free_coherent(&ha->pdev->dev, ha->md_template_size,
4352                    ha->md_tmplt_hdr, ha->md_tmplt_hdr_dma);
4353                ha->md_tmplt_hdr = 0;
4354        }
4355
4356        /* Release the template data buffer allocated */
4357        if (ha->md_dump) {
4358                ql_log(ql_log_info, vha, 0xb049,
4359                    "Free MiniDump memory: %p, size (%d KB)\n",
4360                    ha->md_dump, ha->md_dump_size / 1024);
4361                vfree(ha->md_dump);
4362                ha->md_dump_size = 0;
4363                ha->md_dump = 0;
4364        }
4365}
4366
4367void
4368qla82xx_md_prep(scsi_qla_host_t *vha)
4369{
4370        struct qla_hw_data *ha = vha->hw;
4371        int rval;
4372
4373        /* Get Minidump template size */
4374        rval = qla82xx_md_get_template_size(vha);
4375        if (rval == QLA_SUCCESS) {
4376                ql_log(ql_log_info, vha, 0xb04a,
4377                    "MiniDump Template size obtained (%d KB)\n",
4378                    ha->md_template_size / 1024);
4379
4380                /* Get Minidump template */
4381                rval = qla82xx_md_get_template(vha);
4382                if (rval == QLA_SUCCESS) {
4383                        ql_dbg(ql_dbg_p3p, vha, 0xb04b,
4384                            "MiniDump Template obtained\n");
4385
4386                        /* Allocate memory for minidump */
4387                        rval = qla82xx_md_alloc(vha);
4388                        if (rval == QLA_SUCCESS)
4389                                ql_log(ql_log_info, vha, 0xb04c,
4390                                    "MiniDump memory allocated (%d KB)\n",
4391                                    ha->md_dump_size / 1024);
4392                        else {
4393                                ql_log(ql_log_info, vha, 0xb04d,
4394                                    "Free MiniDump template: %p, size: (%d KB)\n",
4395                                    ha->md_tmplt_hdr,
4396                                    ha->md_template_size / 1024);
4397                                dma_free_coherent(&ha->pdev->dev,
4398                                    ha->md_template_size,
4399                                    ha->md_tmplt_hdr, ha->md_tmplt_hdr_dma);
4400                                ha->md_tmplt_hdr = 0;
4401                        }
4402
4403                }
4404        }
4405}
4406
4407int
4408qla82xx_beacon_on(struct scsi_qla_host *vha)
4409{
4410
4411        int rval;
4412        struct qla_hw_data *ha = vha->hw;
4413        qla82xx_idc_lock(ha);
4414        rval = qla82xx_mbx_beacon_ctl(vha, 1);
4415
4416        if (rval) {
4417                ql_log(ql_log_warn, vha, 0xb050,
4418                    "mbx set led config failed in %s\n", __func__);
4419                goto exit;
4420        }
4421        ha->beacon_blink_led = 1;
4422exit:
4423        qla82xx_idc_unlock(ha);
4424        return rval;
4425}
4426
4427int
4428qla82xx_beacon_off(struct scsi_qla_host *vha)
4429{
4430
4431        int rval;
4432        struct qla_hw_data *ha = vha->hw;
4433        qla82xx_idc_lock(ha);
4434        rval = qla82xx_mbx_beacon_ctl(vha, 0);
4435
4436        if (rval) {
4437                ql_log(ql_log_warn, vha, 0xb051,
4438                    "mbx set led config failed in %s\n", __func__);
4439                goto exit;
4440        }
4441        ha->beacon_blink_led = 0;
4442exit:
4443        qla82xx_idc_unlock(ha);
4444        return rval;
4445}
4446
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