linux/drivers/scsi/qla2xxx/qla_nx.c
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   1/*
   2 * QLogic Fibre Channel HBA Driver
   3 * Copyright (c)  2003-2013 QLogic Corporation
   4 *
   5 * See LICENSE.qla2xxx for copyright and licensing details.
   6 */
   7#include "qla_def.h"
   8#include <linux/delay.h>
   9#include <linux/pci.h>
  10#include <linux/ratelimit.h>
  11#include <linux/vmalloc.h>
  12#include <scsi/scsi_tcq.h>
  13
  14#define MASK(n)                 ((1ULL<<(n))-1)
  15#define MN_WIN(addr) (((addr & 0x1fc0000) >> 1) | \
  16        ((addr >> 25) & 0x3ff))
  17#define OCM_WIN(addr) (((addr & 0x1ff0000) >> 1) | \
  18        ((addr >> 25) & 0x3ff))
  19#define MS_WIN(addr) (addr & 0x0ffc0000)
  20#define QLA82XX_PCI_MN_2M   (0)
  21#define QLA82XX_PCI_MS_2M   (0x80000)
  22#define QLA82XX_PCI_OCM0_2M (0xc0000)
  23#define VALID_OCM_ADDR(addr) (((addr) & 0x3f800) != 0x3f800)
  24#define GET_MEM_OFFS_2M(addr) (addr & MASK(18))
  25#define BLOCK_PROTECT_BITS 0x0F
  26
  27/* CRB window related */
  28#define CRB_BLK(off)    ((off >> 20) & 0x3f)
  29#define CRB_SUBBLK(off) ((off >> 16) & 0xf)
  30#define CRB_WINDOW_2M   (0x130060)
  31#define QLA82XX_PCI_CAMQM_2M_END        (0x04800800UL)
  32#define CRB_HI(off)     ((qla82xx_crb_hub_agt[CRB_BLK(off)] << 20) | \
  33                        ((off) & 0xf0000))
  34#define QLA82XX_PCI_CAMQM_2M_BASE       (0x000ff800UL)
  35#define CRB_INDIRECT_2M (0x1e0000UL)
  36
  37#define MAX_CRB_XFORM 60
  38static unsigned long crb_addr_xform[MAX_CRB_XFORM];
  39static int qla82xx_crb_table_initialized;
  40
  41#define qla82xx_crb_addr_transform(name) \
  42        (crb_addr_xform[QLA82XX_HW_PX_MAP_CRB_##name] = \
  43        QLA82XX_HW_CRB_HUB_AGT_ADR_##name << 20)
  44
  45static void qla82xx_crb_addr_transform_setup(void)
  46{
  47        qla82xx_crb_addr_transform(XDMA);
  48        qla82xx_crb_addr_transform(TIMR);
  49        qla82xx_crb_addr_transform(SRE);
  50        qla82xx_crb_addr_transform(SQN3);
  51        qla82xx_crb_addr_transform(SQN2);
  52        qla82xx_crb_addr_transform(SQN1);
  53        qla82xx_crb_addr_transform(SQN0);
  54        qla82xx_crb_addr_transform(SQS3);
  55        qla82xx_crb_addr_transform(SQS2);
  56        qla82xx_crb_addr_transform(SQS1);
  57        qla82xx_crb_addr_transform(SQS0);
  58        qla82xx_crb_addr_transform(RPMX7);
  59        qla82xx_crb_addr_transform(RPMX6);
  60        qla82xx_crb_addr_transform(RPMX5);
  61        qla82xx_crb_addr_transform(RPMX4);
  62        qla82xx_crb_addr_transform(RPMX3);
  63        qla82xx_crb_addr_transform(RPMX2);
  64        qla82xx_crb_addr_transform(RPMX1);
  65        qla82xx_crb_addr_transform(RPMX0);
  66        qla82xx_crb_addr_transform(ROMUSB);
  67        qla82xx_crb_addr_transform(SN);
  68        qla82xx_crb_addr_transform(QMN);
  69        qla82xx_crb_addr_transform(QMS);
  70        qla82xx_crb_addr_transform(PGNI);
  71        qla82xx_crb_addr_transform(PGND);
  72        qla82xx_crb_addr_transform(PGN3);
  73        qla82xx_crb_addr_transform(PGN2);
  74        qla82xx_crb_addr_transform(PGN1);
  75        qla82xx_crb_addr_transform(PGN0);
  76        qla82xx_crb_addr_transform(PGSI);
  77        qla82xx_crb_addr_transform(PGSD);
  78        qla82xx_crb_addr_transform(PGS3);
  79        qla82xx_crb_addr_transform(PGS2);
  80        qla82xx_crb_addr_transform(PGS1);
  81        qla82xx_crb_addr_transform(PGS0);
  82        qla82xx_crb_addr_transform(PS);
  83        qla82xx_crb_addr_transform(PH);
  84        qla82xx_crb_addr_transform(NIU);
  85        qla82xx_crb_addr_transform(I2Q);
  86        qla82xx_crb_addr_transform(EG);
  87        qla82xx_crb_addr_transform(MN);
  88        qla82xx_crb_addr_transform(MS);
  89        qla82xx_crb_addr_transform(CAS2);
  90        qla82xx_crb_addr_transform(CAS1);
  91        qla82xx_crb_addr_transform(CAS0);
  92        qla82xx_crb_addr_transform(CAM);
  93        qla82xx_crb_addr_transform(C2C1);
  94        qla82xx_crb_addr_transform(C2C0);
  95        qla82xx_crb_addr_transform(SMB);
  96        qla82xx_crb_addr_transform(OCM0);
  97        /*
  98         * Used only in P3 just define it for P2 also.
  99         */
 100        qla82xx_crb_addr_transform(I2C0);
 101
 102        qla82xx_crb_table_initialized = 1;
 103}
 104
 105static struct crb_128M_2M_block_map crb_128M_2M_map[64] = {
 106        {{{0, 0,         0,         0} } },
 107        {{{1, 0x0100000, 0x0102000, 0x120000},
 108        {1, 0x0110000, 0x0120000, 0x130000},
 109        {1, 0x0120000, 0x0122000, 0x124000},
 110        {1, 0x0130000, 0x0132000, 0x126000},
 111        {1, 0x0140000, 0x0142000, 0x128000},
 112        {1, 0x0150000, 0x0152000, 0x12a000},
 113        {1, 0x0160000, 0x0170000, 0x110000},
 114        {1, 0x0170000, 0x0172000, 0x12e000},
 115        {0, 0x0000000, 0x0000000, 0x000000},
 116        {0, 0x0000000, 0x0000000, 0x000000},
 117        {0, 0x0000000, 0x0000000, 0x000000},
 118        {0, 0x0000000, 0x0000000, 0x000000},
 119        {0, 0x0000000, 0x0000000, 0x000000},
 120        {0, 0x0000000, 0x0000000, 0x000000},
 121        {1, 0x01e0000, 0x01e0800, 0x122000},
 122        {0, 0x0000000, 0x0000000, 0x000000} } } ,
 123        {{{1, 0x0200000, 0x0210000, 0x180000} } },
 124        {{{0, 0,         0,         0} } },
 125        {{{1, 0x0400000, 0x0401000, 0x169000} } },
 126        {{{1, 0x0500000, 0x0510000, 0x140000} } },
 127        {{{1, 0x0600000, 0x0610000, 0x1c0000} } },
 128        {{{1, 0x0700000, 0x0704000, 0x1b8000} } },
 129        {{{1, 0x0800000, 0x0802000, 0x170000},
 130        {0, 0x0000000, 0x0000000, 0x000000},
 131        {0, 0x0000000, 0x0000000, 0x000000},
 132        {0, 0x0000000, 0x0000000, 0x000000},
 133        {0, 0x0000000, 0x0000000, 0x000000},
 134        {0, 0x0000000, 0x0000000, 0x000000},
 135        {0, 0x0000000, 0x0000000, 0x000000},
 136        {0, 0x0000000, 0x0000000, 0x000000},
 137        {0, 0x0000000, 0x0000000, 0x000000},
 138        {0, 0x0000000, 0x0000000, 0x000000},
 139        {0, 0x0000000, 0x0000000, 0x000000},
 140        {0, 0x0000000, 0x0000000, 0x000000},
 141        {0, 0x0000000, 0x0000000, 0x000000},
 142        {0, 0x0000000, 0x0000000, 0x000000},
 143        {0, 0x0000000, 0x0000000, 0x000000},
 144        {1, 0x08f0000, 0x08f2000, 0x172000} } },
 145        {{{1, 0x0900000, 0x0902000, 0x174000},
 146        {0, 0x0000000, 0x0000000, 0x000000},
 147        {0, 0x0000000, 0x0000000, 0x000000},
 148        {0, 0x0000000, 0x0000000, 0x000000},
 149        {0, 0x0000000, 0x0000000, 0x000000},
 150        {0, 0x0000000, 0x0000000, 0x000000},
 151        {0, 0x0000000, 0x0000000, 0x000000},
 152        {0, 0x0000000, 0x0000000, 0x000000},
 153        {0, 0x0000000, 0x0000000, 0x000000},
 154        {0, 0x0000000, 0x0000000, 0x000000},
 155        {0, 0x0000000, 0x0000000, 0x000000},
 156        {0, 0x0000000, 0x0000000, 0x000000},
 157        {0, 0x0000000, 0x0000000, 0x000000},
 158        {0, 0x0000000, 0x0000000, 0x000000},
 159        {0, 0x0000000, 0x0000000, 0x000000},
 160        {1, 0x09f0000, 0x09f2000, 0x176000} } },
 161        {{{0, 0x0a00000, 0x0a02000, 0x178000},
 162        {0, 0x0000000, 0x0000000, 0x000000},
 163        {0, 0x0000000, 0x0000000, 0x000000},
 164        {0, 0x0000000, 0x0000000, 0x000000},
 165        {0, 0x0000000, 0x0000000, 0x000000},
 166        {0, 0x0000000, 0x0000000, 0x000000},
 167        {0, 0x0000000, 0x0000000, 0x000000},
 168        {0, 0x0000000, 0x0000000, 0x000000},
 169        {0, 0x0000000, 0x0000000, 0x000000},
 170        {0, 0x0000000, 0x0000000, 0x000000},
 171        {0, 0x0000000, 0x0000000, 0x000000},
 172        {0, 0x0000000, 0x0000000, 0x000000},
 173        {0, 0x0000000, 0x0000000, 0x000000},
 174        {0, 0x0000000, 0x0000000, 0x000000},
 175        {0, 0x0000000, 0x0000000, 0x000000},
 176        {1, 0x0af0000, 0x0af2000, 0x17a000} } },
 177        {{{0, 0x0b00000, 0x0b02000, 0x17c000},
 178        {0, 0x0000000, 0x0000000, 0x000000},
 179        {0, 0x0000000, 0x0000000, 0x000000},
 180        {0, 0x0000000, 0x0000000, 0x000000},
 181        {0, 0x0000000, 0x0000000, 0x000000},
 182        {0, 0x0000000, 0x0000000, 0x000000},
 183        {0, 0x0000000, 0x0000000, 0x000000},
 184        {0, 0x0000000, 0x0000000, 0x000000},
 185        {0, 0x0000000, 0x0000000, 0x000000},
 186        {0, 0x0000000, 0x0000000, 0x000000},
 187        {0, 0x0000000, 0x0000000, 0x000000},
 188        {0, 0x0000000, 0x0000000, 0x000000},
 189        {0, 0x0000000, 0x0000000, 0x000000},
 190        {0, 0x0000000, 0x0000000, 0x000000},
 191        {0, 0x0000000, 0x0000000, 0x000000},
 192        {1, 0x0bf0000, 0x0bf2000, 0x17e000} } },
 193        {{{1, 0x0c00000, 0x0c04000, 0x1d4000} } },
 194        {{{1, 0x0d00000, 0x0d04000, 0x1a4000} } },
 195        {{{1, 0x0e00000, 0x0e04000, 0x1a0000} } },
 196        {{{1, 0x0f00000, 0x0f01000, 0x164000} } },
 197        {{{0, 0x1000000, 0x1004000, 0x1a8000} } },
 198        {{{1, 0x1100000, 0x1101000, 0x160000} } },
 199        {{{1, 0x1200000, 0x1201000, 0x161000} } },
 200        {{{1, 0x1300000, 0x1301000, 0x162000} } },
 201        {{{1, 0x1400000, 0x1401000, 0x163000} } },
 202        {{{1, 0x1500000, 0x1501000, 0x165000} } },
 203        {{{1, 0x1600000, 0x1601000, 0x166000} } },
 204        {{{0, 0,         0,         0} } },
 205        {{{0, 0,         0,         0} } },
 206        {{{0, 0,         0,         0} } },
 207        {{{0, 0,         0,         0} } },
 208        {{{0, 0,         0,         0} } },
 209        {{{0, 0,         0,         0} } },
 210        {{{1, 0x1d00000, 0x1d10000, 0x190000} } },
 211        {{{1, 0x1e00000, 0x1e01000, 0x16a000} } },
 212        {{{1, 0x1f00000, 0x1f10000, 0x150000} } },
 213        {{{0} } },
 214        {{{1, 0x2100000, 0x2102000, 0x120000},
 215        {1, 0x2110000, 0x2120000, 0x130000},
 216        {1, 0x2120000, 0x2122000, 0x124000},
 217        {1, 0x2130000, 0x2132000, 0x126000},
 218        {1, 0x2140000, 0x2142000, 0x128000},
 219        {1, 0x2150000, 0x2152000, 0x12a000},
 220        {1, 0x2160000, 0x2170000, 0x110000},
 221        {1, 0x2170000, 0x2172000, 0x12e000},
 222        {0, 0x0000000, 0x0000000, 0x000000},
 223        {0, 0x0000000, 0x0000000, 0x000000},
 224        {0, 0x0000000, 0x0000000, 0x000000},
 225        {0, 0x0000000, 0x0000000, 0x000000},
 226        {0, 0x0000000, 0x0000000, 0x000000},
 227        {0, 0x0000000, 0x0000000, 0x000000},
 228        {0, 0x0000000, 0x0000000, 0x000000},
 229        {0, 0x0000000, 0x0000000, 0x000000} } },
 230        {{{1, 0x2200000, 0x2204000, 0x1b0000} } },
 231        {{{0} } },
 232        {{{0} } },
 233        {{{0} } },
 234        {{{0} } },
 235        {{{0} } },
 236        {{{1, 0x2800000, 0x2804000, 0x1a4000} } },
 237        {{{1, 0x2900000, 0x2901000, 0x16b000} } },
 238        {{{1, 0x2a00000, 0x2a00400, 0x1ac400} } },
 239        {{{1, 0x2b00000, 0x2b00400, 0x1ac800} } },
 240        {{{1, 0x2c00000, 0x2c00400, 0x1acc00} } },
 241        {{{1, 0x2d00000, 0x2d00400, 0x1ad000} } },
 242        {{{1, 0x2e00000, 0x2e00400, 0x1ad400} } },
 243        {{{1, 0x2f00000, 0x2f00400, 0x1ad800} } },
 244        {{{1, 0x3000000, 0x3000400, 0x1adc00} } },
 245        {{{0, 0x3100000, 0x3104000, 0x1a8000} } },
 246        {{{1, 0x3200000, 0x3204000, 0x1d4000} } },
 247        {{{1, 0x3300000, 0x3304000, 0x1a0000} } },
 248        {{{0} } },
 249        {{{1, 0x3500000, 0x3500400, 0x1ac000} } },
 250        {{{1, 0x3600000, 0x3600400, 0x1ae000} } },
 251        {{{1, 0x3700000, 0x3700400, 0x1ae400} } },
 252        {{{1, 0x3800000, 0x3804000, 0x1d0000} } },
 253        {{{1, 0x3900000, 0x3904000, 0x1b4000} } },
 254        {{{1, 0x3a00000, 0x3a04000, 0x1d8000} } },
 255        {{{0} } },
 256        {{{0} } },
 257        {{{1, 0x3d00000, 0x3d04000, 0x1dc000} } },
 258        {{{1, 0x3e00000, 0x3e01000, 0x167000} } },
 259        {{{1, 0x3f00000, 0x3f01000, 0x168000} } }
 260};
 261
 262/*
 263 * top 12 bits of crb internal address (hub, agent)
 264 */
 265static unsigned qla82xx_crb_hub_agt[64] = {
 266        0,
 267        QLA82XX_HW_CRB_HUB_AGT_ADR_PS,
 268        QLA82XX_HW_CRB_HUB_AGT_ADR_MN,
 269        QLA82XX_HW_CRB_HUB_AGT_ADR_MS,
 270        0,
 271        QLA82XX_HW_CRB_HUB_AGT_ADR_SRE,
 272        QLA82XX_HW_CRB_HUB_AGT_ADR_NIU,
 273        QLA82XX_HW_CRB_HUB_AGT_ADR_QMN,
 274        QLA82XX_HW_CRB_HUB_AGT_ADR_SQN0,
 275        QLA82XX_HW_CRB_HUB_AGT_ADR_SQN1,
 276        QLA82XX_HW_CRB_HUB_AGT_ADR_SQN2,
 277        QLA82XX_HW_CRB_HUB_AGT_ADR_SQN3,
 278        QLA82XX_HW_CRB_HUB_AGT_ADR_I2Q,
 279        QLA82XX_HW_CRB_HUB_AGT_ADR_TIMR,
 280        QLA82XX_HW_CRB_HUB_AGT_ADR_ROMUSB,
 281        QLA82XX_HW_CRB_HUB_AGT_ADR_PGN4,
 282        QLA82XX_HW_CRB_HUB_AGT_ADR_XDMA,
 283        QLA82XX_HW_CRB_HUB_AGT_ADR_PGN0,
 284        QLA82XX_HW_CRB_HUB_AGT_ADR_PGN1,
 285        QLA82XX_HW_CRB_HUB_AGT_ADR_PGN2,
 286        QLA82XX_HW_CRB_HUB_AGT_ADR_PGN3,
 287        QLA82XX_HW_CRB_HUB_AGT_ADR_PGND,
 288        QLA82XX_HW_CRB_HUB_AGT_ADR_PGNI,
 289        QLA82XX_HW_CRB_HUB_AGT_ADR_PGS0,
 290        QLA82XX_HW_CRB_HUB_AGT_ADR_PGS1,
 291        QLA82XX_HW_CRB_HUB_AGT_ADR_PGS2,
 292        QLA82XX_HW_CRB_HUB_AGT_ADR_PGS3,
 293        0,
 294        QLA82XX_HW_CRB_HUB_AGT_ADR_PGSI,
 295        QLA82XX_HW_CRB_HUB_AGT_ADR_SN,
 296        0,
 297        QLA82XX_HW_CRB_HUB_AGT_ADR_EG,
 298        0,
 299        QLA82XX_HW_CRB_HUB_AGT_ADR_PS,
 300        QLA82XX_HW_CRB_HUB_AGT_ADR_CAM,
 301        0,
 302        0,
 303        0,
 304        0,
 305        0,
 306        QLA82XX_HW_CRB_HUB_AGT_ADR_TIMR,
 307        0,
 308        QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX1,
 309        QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX2,
 310        QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX3,
 311        QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX4,
 312        QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX5,
 313        QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX6,
 314        QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX7,
 315        QLA82XX_HW_CRB_HUB_AGT_ADR_XDMA,
 316        QLA82XX_HW_CRB_HUB_AGT_ADR_I2Q,
 317        QLA82XX_HW_CRB_HUB_AGT_ADR_ROMUSB,
 318        0,
 319        QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX0,
 320        QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX8,
 321        QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX9,
 322        QLA82XX_HW_CRB_HUB_AGT_ADR_OCM0,
 323        0,
 324        QLA82XX_HW_CRB_HUB_AGT_ADR_SMB,
 325        QLA82XX_HW_CRB_HUB_AGT_ADR_I2C0,
 326        QLA82XX_HW_CRB_HUB_AGT_ADR_I2C1,
 327        0,
 328        QLA82XX_HW_CRB_HUB_AGT_ADR_PGNC,
 329        0,
 330};
 331
 332/* Device states */
 333static char *q_dev_state[] = {
 334         "Unknown",
 335        "Cold",
 336        "Initializing",
 337        "Ready",
 338        "Need Reset",
 339        "Need Quiescent",
 340        "Failed",
 341        "Quiescent",
 342};
 343
 344char *qdev_state(uint32_t dev_state)
 345{
 346        return q_dev_state[dev_state];
 347}
 348
 349/*
 350 * In: 'off' 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 __iomem *)(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 __iomem *)
 368            (CRB_WINDOW_2M + ha->nx_pcibase));
 369        if (win_read != ha->crb_win) {
 370                ql_dbg(ql_dbg_p3p, vha, 0xb000,
 371                    "%s: Written crbwin (0x%x) "
 372                    "!= Read crbwin (0x%x), off=0x%lx.\n",
 373                    __func__, ha->crb_win, win_read, *off);
 374        }
 375        *off = (*off & MASK(16)) + CRB_INDIRECT_2M + ha->nx_pcibase;
 376}
 377
 378static inline unsigned long
 379qla82xx_pci_set_crbwindow(struct qla_hw_data *ha, u64 off)
 380{
 381        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 382        /* See if we are currently pointing to the region we want to use next */
 383        if ((off >= QLA82XX_CRB_PCIX_HOST) && (off < QLA82XX_CRB_DDR_NET)) {
 384                /* No need to change window. PCIX and PCIEregs are in both
 385                 * regs are in both windows.
 386                 */
 387                return off;
 388        }
 389
 390        if ((off >= QLA82XX_CRB_PCIX_HOST) && (off < QLA82XX_CRB_PCIX_HOST2)) {
 391                /* We are in first CRB window */
 392                if (ha->curr_window != 0)
 393                        WARN_ON(1);
 394                return off;
 395        }
 396
 397        if ((off > QLA82XX_CRB_PCIX_HOST2) && (off < QLA82XX_CRB_MAX)) {
 398                /* We are in second CRB window */
 399                off = off - QLA82XX_CRB_PCIX_HOST2 + QLA82XX_CRB_PCIX_HOST;
 400
 401                if (ha->curr_window != 1)
 402                        return off;
 403
 404                /* We are in the QM or direct access
 405                 * register region - do nothing
 406                 */
 407                if ((off >= QLA82XX_PCI_DIRECT_CRB) &&
 408                        (off < QLA82XX_PCI_CAMQM_MAX))
 409                        return off;
 410        }
 411        /* strange address given */
 412        ql_dbg(ql_dbg_p3p, vha, 0xb001,
 413            "%s: Warning: unm_nic_pci_set_crbwindow "
 414            "called with an unknown address(%llx).\n",
 415            QLA2XXX_DRIVER_NAME, off);
 416        return off;
 417}
 418
 419static int
 420qla82xx_pci_get_crb_addr_2M(struct qla_hw_data *ha, ulong *off)
 421{
 422        struct crb_128M_2M_sub_block_map *m;
 423
 424        if (*off >= QLA82XX_CRB_MAX)
 425                return -1;
 426
 427        if (*off >= QLA82XX_PCI_CAMQM && (*off < QLA82XX_PCI_CAMQM_2M_END)) {
 428                *off = (*off - QLA82XX_PCI_CAMQM) +
 429                    QLA82XX_PCI_CAMQM_2M_BASE + ha->nx_pcibase;
 430                return 0;
 431        }
 432
 433        if (*off < QLA82XX_PCI_CRBSPACE)
 434                return -1;
 435
 436        *off -= QLA82XX_PCI_CRBSPACE;
 437
 438        /* Try direct map */
 439        m = &crb_128M_2M_map[CRB_BLK(*off)].sub_block[CRB_SUBBLK(*off)];
 440
 441        if (m->valid && (m->start_128M <= *off) && (m->end_128M > *off)) {
 442                *off = *off + m->start_2M - m->start_128M + ha->nx_pcibase;
 443                return 0;
 444        }
 445        /* Not in direct map, use crb window */
 446        return 1;
 447}
 448
 449#define CRB_WIN_LOCK_TIMEOUT 100000000
 450static int qla82xx_crb_win_lock(struct qla_hw_data *ha)
 451{
 452        int done = 0, timeout = 0;
 453
 454        while (!done) {
 455                /* acquire semaphore3 from PCI HW block */
 456                done = qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_LOCK));
 457                if (done == 1)
 458                        break;
 459                if (timeout >= CRB_WIN_LOCK_TIMEOUT)
 460                        return -1;
 461                timeout++;
 462        }
 463        qla82xx_wr_32(ha, QLA82XX_CRB_WIN_LOCK_ID, ha->portnum);
 464        return 0;
 465}
 466
 467int
 468qla82xx_wr_32(struct qla_hw_data *ha, ulong off, u32 data)
 469{
 470        unsigned long flags = 0;
 471        int rv;
 472
 473        rv = qla82xx_pci_get_crb_addr_2M(ha, &off);
 474
 475        BUG_ON(rv == -1);
 476
 477        if (rv == 1) {
 478                write_lock_irqsave(&ha->hw_lock, flags);
 479                qla82xx_crb_win_lock(ha);
 480                qla82xx_pci_set_crbwindow_2M(ha, &off);
 481        }
 482
 483        writel(data, (void __iomem *)off);
 484
 485        if (rv == 1) {
 486                qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_UNLOCK));
 487                write_unlock_irqrestore(&ha->hw_lock, flags);
 488        }
 489        return 0;
 490}
 491
 492int
 493qla82xx_rd_32(struct qla_hw_data *ha, ulong off)
 494{
 495        unsigned long flags = 0;
 496        int rv;
 497        u32 data;
 498
 499        rv = qla82xx_pci_get_crb_addr_2M(ha, &off);
 500
 501        BUG_ON(rv == -1);
 502
 503        if (rv == 1) {
 504                write_lock_irqsave(&ha->hw_lock, flags);
 505                qla82xx_crb_win_lock(ha);
 506                qla82xx_pci_set_crbwindow_2M(ha, &off);
 507        }
 508        data = RD_REG_DWORD((void __iomem *)off);
 509
 510        if (rv == 1) {
 511                qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_UNLOCK));
 512                write_unlock_irqrestore(&ha->hw_lock, flags);
 513        }
 514        return data;
 515}
 516
 517#define IDC_LOCK_TIMEOUT 100000000
 518int qla82xx_idc_lock(struct qla_hw_data *ha)
 519{
 520        int i;
 521        int done = 0, timeout = 0;
 522
 523        while (!done) {
 524                /* acquire semaphore5 from PCI HW block */
 525                done = qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM5_LOCK));
 526                if (done == 1)
 527                        break;
 528                if (timeout >= IDC_LOCK_TIMEOUT)
 529                        return -1;
 530
 531                timeout++;
 532
 533                /* Yield CPU */
 534                if (!in_interrupt())
 535                        schedule();
 536                else {
 537                        for (i = 0; i < 20; i++)
 538                                cpu_relax();
 539                }
 540        }
 541
 542        return 0;
 543}
 544
 545void qla82xx_idc_unlock(struct qla_hw_data *ha)
 546{
 547        qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM5_UNLOCK));
 548}
 549
 550/*  PCI Windowing for DDR regions.  */
 551#define QLA82XX_ADDR_IN_RANGE(addr, low, high) \
 552        (((addr) <= (high)) && ((addr) >= (low)))
 553/*
 554 * check memory access boundary.
 555 * used by test agent. support ddr access only for now
 556 */
 557static unsigned long
 558qla82xx_pci_mem_bound_check(struct qla_hw_data *ha,
 559        unsigned long long addr, int size)
 560{
 561        if (!QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_DDR_NET,
 562                QLA82XX_ADDR_DDR_NET_MAX) ||
 563                !QLA82XX_ADDR_IN_RANGE(addr + size - 1, QLA82XX_ADDR_DDR_NET,
 564                QLA82XX_ADDR_DDR_NET_MAX) ||
 565                ((size != 1) && (size != 2) && (size != 4) && (size != 8)))
 566                        return 0;
 567        else
 568                return 1;
 569}
 570
 571static int qla82xx_pci_set_window_warning_count;
 572
 573static unsigned long
 574qla82xx_pci_set_window(struct qla_hw_data *ha, unsigned long long addr)
 575{
 576        int window;
 577        u32 win_read;
 578        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 579
 580        if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_DDR_NET,
 581                QLA82XX_ADDR_DDR_NET_MAX)) {
 582                /* DDR network side */
 583                window = MN_WIN(addr);
 584                ha->ddr_mn_window = window;
 585                qla82xx_wr_32(ha,
 586                        ha->mn_win_crb | QLA82XX_PCI_CRBSPACE, window);
 587                win_read = qla82xx_rd_32(ha,
 588                        ha->mn_win_crb | QLA82XX_PCI_CRBSPACE);
 589                if ((win_read << 17) != window) {
 590                        ql_dbg(ql_dbg_p3p, vha, 0xb003,
 591                            "%s: Written MNwin (0x%x) != Read MNwin (0x%x).\n",
 592                            __func__, window, win_read);
 593                }
 594                addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_DDR_NET;
 595        } else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_OCM0,
 596                QLA82XX_ADDR_OCM0_MAX)) {
 597                unsigned int temp1;
 598                if ((addr & 0x00ff800) == 0xff800) {
 599                        ql_log(ql_log_warn, vha, 0xb004,
 600                            "%s: QM access not handled.\n", __func__);
 601                        addr = -1UL;
 602                }
 603                window = OCM_WIN(addr);
 604                ha->ddr_mn_window = window;
 605                qla82xx_wr_32(ha,
 606                        ha->mn_win_crb | QLA82XX_PCI_CRBSPACE, window);
 607                win_read = qla82xx_rd_32(ha,
 608                        ha->mn_win_crb | QLA82XX_PCI_CRBSPACE);
 609                temp1 = ((window & 0x1FF) << 7) |
 610                    ((window & 0x0FFFE0000) >> 17);
 611                if (win_read != temp1) {
 612                        ql_log(ql_log_warn, vha, 0xb005,
 613                            "%s: Written OCMwin (0x%x) != Read OCMwin (0x%x).\n",
 614                            __func__, temp1, win_read);
 615                }
 616                addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_OCM0_2M;
 617
 618        } else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_QDR_NET,
 619                QLA82XX_P3_ADDR_QDR_NET_MAX)) {
 620                /* QDR network side */
 621                window = MS_WIN(addr);
 622                ha->qdr_sn_window = window;
 623                qla82xx_wr_32(ha,
 624                        ha->ms_win_crb | QLA82XX_PCI_CRBSPACE, window);
 625                win_read = qla82xx_rd_32(ha,
 626                        ha->ms_win_crb | QLA82XX_PCI_CRBSPACE);
 627                if (win_read != window) {
 628                        ql_log(ql_log_warn, vha, 0xb006,
 629                            "%s: Written MSwin (0x%x) != Read MSwin (0x%x).\n",
 630                            __func__, window, win_read);
 631                }
 632                addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_QDR_NET;
 633        } else {
 634                /*
 635                 * peg gdb frequently accesses memory that doesn't exist,
 636                 * this limits the chit chat so debugging isn't slowed down.
 637                 */
 638                if ((qla82xx_pci_set_window_warning_count++ < 8) ||
 639                    (qla82xx_pci_set_window_warning_count%64 == 0)) {
 640                        ql_log(ql_log_warn, vha, 0xb007,
 641                            "%s: Warning:%s Unknown address range!.\n",
 642                            __func__, QLA2XXX_DRIVER_NAME);
 643                }
 644                addr = -1UL;
 645        }
 646        return addr;
 647}
 648
 649/* check if address is in the same windows as the previous access */
 650static int qla82xx_pci_is_same_window(struct qla_hw_data *ha,
 651        unsigned long long addr)
 652{
 653        int                     window;
 654        unsigned long long      qdr_max;
 655
 656        qdr_max = QLA82XX_P3_ADDR_QDR_NET_MAX;
 657
 658        /* DDR network side */
 659        if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_DDR_NET,
 660                QLA82XX_ADDR_DDR_NET_MAX))
 661                BUG();
 662        else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_OCM0,
 663                QLA82XX_ADDR_OCM0_MAX))
 664                return 1;
 665        else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_OCM1,
 666                QLA82XX_ADDR_OCM1_MAX))
 667                return 1;
 668        else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_QDR_NET, qdr_max)) {
 669                /* QDR network side */
 670                window = ((addr - QLA82XX_ADDR_QDR_NET) >> 22) & 0x3f;
 671                if (ha->qdr_sn_window == window)
 672                        return 1;
 673        }
 674        return 0;
 675}
 676
 677static int qla82xx_pci_mem_read_direct(struct qla_hw_data *ha,
 678        u64 off, void *data, int size)
 679{
 680        unsigned long   flags;
 681        void __iomem *addr = NULL;
 682        int             ret = 0;
 683        u64             start;
 684        uint8_t __iomem  *mem_ptr = NULL;
 685        unsigned long   mem_base;
 686        unsigned long   mem_page;
 687        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 688
 689        write_lock_irqsave(&ha->hw_lock, flags);
 690
 691        /*
 692         * If attempting to access unknown address or straddle hw windows,
 693         * do not access.
 694         */
 695        start = qla82xx_pci_set_window(ha, off);
 696        if ((start == -1UL) ||
 697                (qla82xx_pci_is_same_window(ha, off + size - 1) == 0)) {
 698                write_unlock_irqrestore(&ha->hw_lock, flags);
 699                ql_log(ql_log_fatal, vha, 0xb008,
 700                    "%s out of bound pci memory "
 701                    "access, offset is 0x%llx.\n",
 702                    QLA2XXX_DRIVER_NAME, off);
 703                return -1;
 704        }
 705
 706        write_unlock_irqrestore(&ha->hw_lock, flags);
 707        mem_base = pci_resource_start(ha->pdev, 0);
 708        mem_page = start & PAGE_MASK;
 709        /* Map two pages whenever user tries to access addresses in two
 710        * consecutive pages.
 711        */
 712        if (mem_page != ((start + size - 1) & PAGE_MASK))
 713                mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE * 2);
 714        else
 715                mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE);
 716        if (mem_ptr == NULL) {
 717                *(u8  *)data = 0;
 718                return -1;
 719        }
 720        addr = mem_ptr;
 721        addr += start & (PAGE_SIZE - 1);
 722        write_lock_irqsave(&ha->hw_lock, flags);
 723
 724        switch (size) {
 725        case 1:
 726                *(u8  *)data = readb(addr);
 727                break;
 728        case 2:
 729                *(u16 *)data = readw(addr);
 730                break;
 731        case 4:
 732                *(u32 *)data = readl(addr);
 733                break;
 734        case 8:
 735                *(u64 *)data = readq(addr);
 736                break;
 737        default:
 738                ret = -1;
 739                break;
 740        }
 741        write_unlock_irqrestore(&ha->hw_lock, flags);
 742
 743        if (mem_ptr)
 744                iounmap(mem_ptr);
 745        return ret;
 746}
 747
 748static int
 749qla82xx_pci_mem_write_direct(struct qla_hw_data *ha,
 750        u64 off, void *data, int size)
 751{
 752        unsigned long   flags;
 753        void  __iomem *addr = NULL;
 754        int             ret = 0;
 755        u64             start;
 756        uint8_t __iomem *mem_ptr = NULL;
 757        unsigned long   mem_base;
 758        unsigned long   mem_page;
 759        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 760
 761        write_lock_irqsave(&ha->hw_lock, flags);
 762
 763        /*
 764         * If attempting to access unknown address or straddle hw windows,
 765         * do not access.
 766         */
 767        start = qla82xx_pci_set_window(ha, off);
 768        if ((start == -1UL) ||
 769                (qla82xx_pci_is_same_window(ha, off + size - 1) == 0)) {
 770                write_unlock_irqrestore(&ha->hw_lock, flags);
 771                ql_log(ql_log_fatal, vha, 0xb009,
 772                    "%s out of bount memory "
 773                    "access, offset is 0x%llx.\n",
 774                    QLA2XXX_DRIVER_NAME, off);
 775                return -1;
 776        }
 777
 778        write_unlock_irqrestore(&ha->hw_lock, flags);
 779        mem_base = pci_resource_start(ha->pdev, 0);
 780        mem_page = start & PAGE_MASK;
 781        /* Map two pages whenever user tries to access addresses in two
 782         * consecutive pages.
 783         */
 784        if (mem_page != ((start + size - 1) & PAGE_MASK))
 785                mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE*2);
 786        else
 787                mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE);
 788        if (mem_ptr == NULL)
 789                return -1;
 790
 791        addr = mem_ptr;
 792        addr += start & (PAGE_SIZE - 1);
 793        write_lock_irqsave(&ha->hw_lock, flags);
 794
 795        switch (size) {
 796        case 1:
 797                writeb(*(u8  *)data, addr);
 798                break;
 799        case 2:
 800                writew(*(u16 *)data, addr);
 801                break;
 802        case 4:
 803                writel(*(u32 *)data, addr);
 804                break;
 805        case 8:
 806                writeq(*(u64 *)data, addr);
 807                break;
 808        default:
 809                ret = -1;
 810                break;
 811        }
 812        write_unlock_irqrestore(&ha->hw_lock, flags);
 813        if (mem_ptr)
 814                iounmap(mem_ptr);
 815        return ret;
 816}
 817
 818#define MTU_FUDGE_FACTOR 100
 819static unsigned long
 820qla82xx_decode_crb_addr(unsigned long addr)
 821{
 822        int i;
 823        unsigned long base_addr, offset, pci_base;
 824
 825        if (!qla82xx_crb_table_initialized)
 826                qla82xx_crb_addr_transform_setup();
 827
 828        pci_base = ADDR_ERROR;
 829        base_addr = addr & 0xfff00000;
 830        offset = addr & 0x000fffff;
 831
 832        for (i = 0; i < MAX_CRB_XFORM; i++) {
 833                if (crb_addr_xform[i] == base_addr) {
 834                        pci_base = i << 20;
 835                        break;
 836                }
 837        }
 838        if (pci_base == ADDR_ERROR)
 839                return pci_base;
 840        return pci_base + offset;
 841}
 842
 843static long rom_max_timeout = 100;
 844static long qla82xx_rom_lock_timeout = 100;
 845
 846static int
 847qla82xx_rom_lock(struct qla_hw_data *ha)
 848{
 849        int done = 0, timeout = 0;
 850        uint32_t lock_owner = 0;
 851
 852        while (!done) {
 853                /* acquire semaphore2 from PCI HW block */
 854                done = qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_LOCK));
 855                if (done == 1)
 856                        break;
 857                if (timeout >= qla82xx_rom_lock_timeout) {
 858                        lock_owner = qla82xx_rd_32(ha, QLA82XX_ROM_LOCK_ID);
 859                        return -1;
 860                }
 861                timeout++;
 862        }
 863        qla82xx_wr_32(ha, QLA82XX_ROM_LOCK_ID, ROM_LOCK_DRIVER);
 864        return 0;
 865}
 866
 867static void
 868qla82xx_rom_unlock(struct qla_hw_data *ha)
 869{
 870        qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_UNLOCK));
 871}
 872
 873static int
 874qla82xx_wait_rom_busy(struct qla_hw_data *ha)
 875{
 876        long timeout = 0;
 877        long done = 0 ;
 878        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 879
 880        while (done == 0) {
 881                done = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_STATUS);
 882                done &= 4;
 883                timeout++;
 884                if (timeout >= rom_max_timeout) {
 885                        ql_dbg(ql_dbg_p3p, vha, 0xb00a,
 886                            "%s: Timeout reached waiting for rom busy.\n",
 887                            QLA2XXX_DRIVER_NAME);
 888                        return -1;
 889                }
 890        }
 891        return 0;
 892}
 893
 894static int
 895qla82xx_wait_rom_done(struct qla_hw_data *ha)
 896{
 897        long timeout = 0;
 898        long done = 0 ;
 899        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 900
 901        while (done == 0) {
 902                done = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_STATUS);
 903                done &= 2;
 904                timeout++;
 905                if (timeout >= rom_max_timeout) {
 906                        ql_dbg(ql_dbg_p3p, vha, 0xb00b,
 907                            "%s: Timeout reached waiting for rom done.\n",
 908                            QLA2XXX_DRIVER_NAME);
 909                        return -1;
 910                }
 911        }
 912        return 0;
 913}
 914
 915static int
 916qla82xx_md_rw_32(struct qla_hw_data *ha, uint32_t off, u32 data, uint8_t flag)
 917{
 918        uint32_t  off_value, rval = 0;
 919
 920        WRT_REG_DWORD((void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase),
 921            (off & 0xFFFF0000));
 922
 923        /* Read back value to make sure write has gone through */
 924        RD_REG_DWORD((void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase));
 925        off_value  = (off & 0x0000FFFF);
 926
 927        if (flag)
 928                WRT_REG_DWORD((void __iomem *)
 929                    (off_value + CRB_INDIRECT_2M + ha->nx_pcibase),
 930                    data);
 931        else
 932                rval = RD_REG_DWORD((void __iomem *)
 933                    (off_value + CRB_INDIRECT_2M + ha->nx_pcibase));
 934
 935        return rval;
 936}
 937
 938static int
 939qla82xx_do_rom_fast_read(struct qla_hw_data *ha, int addr, int *valp)
 940{
 941        /* Dword reads to flash. */
 942        qla82xx_md_rw_32(ha, MD_DIRECT_ROM_WINDOW, (addr & 0xFFFF0000), 1);
 943        *valp = qla82xx_md_rw_32(ha, MD_DIRECT_ROM_READ_BASE +
 944            (addr & 0x0000FFFF), 0, 0);
 945
 946        return 0;
 947}
 948
 949static int
 950qla82xx_rom_fast_read(struct qla_hw_data *ha, int addr, int *valp)
 951{
 952        int ret, loops = 0;
 953        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 954
 955        while ((qla82xx_rom_lock(ha) != 0) && (loops < 50000)) {
 956                udelay(100);
 957                schedule();
 958                loops++;
 959        }
 960        if (loops >= 50000) {
 961                ql_log(ql_log_fatal, vha, 0x00b9,
 962                    "Failed to acquire SEM2 lock.\n");
 963                return -1;
 964        }
 965        ret = qla82xx_do_rom_fast_read(ha, addr, valp);
 966        qla82xx_rom_unlock(ha);
 967        return ret;
 968}
 969
 970static int
 971qla82xx_read_status_reg(struct qla_hw_data *ha, uint32_t *val)
 972{
 973        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 974        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_RDSR);
 975        qla82xx_wait_rom_busy(ha);
 976        if (qla82xx_wait_rom_done(ha)) {
 977                ql_log(ql_log_warn, vha, 0xb00c,
 978                    "Error waiting for rom done.\n");
 979                return -1;
 980        }
 981        *val = qla82xx_rd_32(ha, QLA82XX_ROMUSB_ROM_RDATA);
 982        return 0;
 983}
 984
 985static int
 986qla82xx_flash_wait_write_finish(struct qla_hw_data *ha)
 987{
 988        long timeout = 0;
 989        uint32_t done = 1 ;
 990        uint32_t val;
 991        int ret = 0;
 992        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 993
 994        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 0);
 995        while ((done != 0) && (ret == 0)) {
 996                ret = qla82xx_read_status_reg(ha, &val);
 997                done = val & 1;
 998                timeout++;
 999                udelay(10);
1000                cond_resched();
1001                if (timeout >= 50000) {
1002                        ql_log(ql_log_warn, vha, 0xb00d,
1003                            "Timeout reached waiting for write finish.\n");
1004                        return -1;
1005                }
1006        }
1007        return ret;
1008}
1009
1010static int
1011qla82xx_flash_set_write_enable(struct qla_hw_data *ha)
1012{
1013        uint32_t val;
1014        qla82xx_wait_rom_busy(ha);
1015        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 0);
1016        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_WREN);
1017        qla82xx_wait_rom_busy(ha);
1018        if (qla82xx_wait_rom_done(ha))
1019                return -1;
1020        if (qla82xx_read_status_reg(ha, &val) != 0)
1021                return -1;
1022        if ((val & 2) != 2)
1023                return -1;
1024        return 0;
1025}
1026
1027static int
1028qla82xx_write_status_reg(struct qla_hw_data *ha, uint32_t val)
1029{
1030        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1031        if (qla82xx_flash_set_write_enable(ha))
1032                return -1;
1033        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_WDATA, val);
1034        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, 0x1);
1035        if (qla82xx_wait_rom_done(ha)) {
1036                ql_log(ql_log_warn, vha, 0xb00e,
1037                    "Error waiting for rom done.\n");
1038                return -1;
1039        }
1040        return qla82xx_flash_wait_write_finish(ha);
1041}
1042
1043static int
1044qla82xx_write_disable_flash(struct qla_hw_data *ha)
1045{
1046        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1047        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_WRDI);
1048        if (qla82xx_wait_rom_done(ha)) {
1049                ql_log(ql_log_warn, vha, 0xb00f,
1050                    "Error waiting for rom done.\n");
1051                return -1;
1052        }
1053        return 0;
1054}
1055
1056static int
1057ql82xx_rom_lock_d(struct qla_hw_data *ha)
1058{
1059        int loops = 0;
1060        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1061
1062        while ((qla82xx_rom_lock(ha) != 0) && (loops < 50000)) {
1063                udelay(100);
1064                cond_resched();
1065                loops++;
1066        }
1067        if (loops >= 50000) {
1068                ql_log(ql_log_warn, vha, 0xb010,
1069                    "ROM lock failed.\n");
1070                return -1;
1071        }
1072        return 0;
1073}
1074
1075static int
1076qla82xx_write_flash_dword(struct qla_hw_data *ha, uint32_t flashaddr,
1077        uint32_t data)
1078{
1079        int ret = 0;
1080        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1081
1082        ret = ql82xx_rom_lock_d(ha);
1083        if (ret < 0) {
1084                ql_log(ql_log_warn, vha, 0xb011,
1085                    "ROM lock failed.\n");
1086                return ret;
1087        }
1088
1089        if (qla82xx_flash_set_write_enable(ha))
1090                goto done_write;
1091
1092        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_WDATA, data);
1093        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ADDRESS, flashaddr);
1094        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 3);
1095        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_PP);
1096        qla82xx_wait_rom_busy(ha);
1097        if (qla82xx_wait_rom_done(ha)) {
1098                ql_log(ql_log_warn, vha, 0xb012,
1099                    "Error waiting for rom done.\n");
1100                ret = -1;
1101                goto done_write;
1102        }
1103
1104        ret = qla82xx_flash_wait_write_finish(ha);
1105
1106done_write:
1107        qla82xx_rom_unlock(ha);
1108        return ret;
1109}
1110
1111/* This routine does CRB initialize sequence
1112 *  to put the ISP into operational state
1113 */
1114static int
1115qla82xx_pinit_from_rom(scsi_qla_host_t *vha)
1116{
1117        int addr, val;
1118        int i ;
1119        struct crb_addr_pair *buf;
1120        unsigned long off;
1121        unsigned offset, n;
1122        struct qla_hw_data *ha = vha->hw;
1123
1124        struct crb_addr_pair {
1125                long addr;
1126                long data;
1127        };
1128
1129        /* Halt all the individual PEGs and other blocks of the ISP */
1130        qla82xx_rom_lock(ha);
1131
1132        /* disable all I2Q */
1133        qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x10, 0x0);
1134        qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x14, 0x0);
1135        qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x18, 0x0);
1136        qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x1c, 0x0);
1137        qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x20, 0x0);
1138        qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x24, 0x0);
1139
1140        /* disable all niu interrupts */
1141        qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x40, 0xff);
1142        /* disable xge rx/tx */
1143        qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x70000, 0x00);
1144        /* disable xg1 rx/tx */
1145        qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x80000, 0x00);
1146        /* disable sideband mac */
1147        qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x90000, 0x00);
1148        /* disable ap0 mac */
1149        qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0xa0000, 0x00);
1150        /* disable ap1 mac */
1151        qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0xb0000, 0x00);
1152
1153        /* halt sre */
1154        val = qla82xx_rd_32(ha, QLA82XX_CRB_SRE + 0x1000);
1155        qla82xx_wr_32(ha, QLA82XX_CRB_SRE + 0x1000, val & (~(0x1)));
1156
1157        /* halt epg */
1158        qla82xx_wr_32(ha, QLA82XX_CRB_EPG + 0x1300, 0x1);
1159
1160        /* halt timers */
1161        qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x0, 0x0);
1162        qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x8, 0x0);
1163        qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x10, 0x0);
1164        qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x18, 0x0);
1165        qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x100, 0x0);
1166        qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x200, 0x0);
1167
1168        /* halt pegs */
1169        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x3c, 1);
1170        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1 + 0x3c, 1);
1171        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2 + 0x3c, 1);
1172        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3 + 0x3c, 1);
1173        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_4 + 0x3c, 1);
1174        msleep(20);
1175
1176        /* big hammer */
1177        if (test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
1178                /* don't reset CAM block on reset */
1179                qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xfeffffff);
1180        else
1181                qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xffffffff);
1182        qla82xx_rom_unlock(ha);
1183
1184        /* Read the signature value from the flash.
1185         * Offset 0: Contain signature (0xcafecafe)
1186         * Offset 4: Offset and number of addr/value pairs
1187         * that present in CRB initialize sequence
1188         */
1189        if (qla82xx_rom_fast_read(ha, 0, &n) != 0 || n != 0xcafecafeUL ||
1190            qla82xx_rom_fast_read(ha, 4, &n) != 0) {
1191                ql_log(ql_log_fatal, vha, 0x006e,
1192                    "Error Reading crb_init area: n: %08x.\n", n);
1193                return -1;
1194        }
1195
1196        /* Offset in flash = lower 16 bits
1197         * Number of entries = upper 16 bits
1198         */
1199        offset = n & 0xffffU;
1200        n = (n >> 16) & 0xffffU;
1201
1202        /* number of addr/value pair should not exceed 1024 entries */
1203        if (n  >= 1024) {
1204                ql_log(ql_log_fatal, vha, 0x0071,
1205                    "Card flash not initialized:n=0x%x.\n", n);
1206                return -1;
1207        }
1208
1209        ql_log(ql_log_info, vha, 0x0072,
1210            "%d CRB init values found in ROM.\n", n);
1211
1212        buf = kmalloc(n * sizeof(struct crb_addr_pair), GFP_KERNEL);
1213        if (buf == NULL) {
1214                ql_log(ql_log_fatal, vha, 0x010c,
1215                    "Unable to allocate memory.\n");
1216                return -1;
1217        }
1218
1219        for (i = 0; i < n; i++) {
1220                if (qla82xx_rom_fast_read(ha, 8*i + 4*offset, &val) != 0 ||
1221                    qla82xx_rom_fast_read(ha, 8*i + 4*offset + 4, &addr) != 0) {
1222                        kfree(buf);
1223                        return -1;
1224                }
1225
1226                buf[i].addr = addr;
1227                buf[i].data = val;
1228        }
1229
1230        for (i = 0; i < n; i++) {
1231                /* Translate internal CRB initialization
1232                 * address to PCI bus address
1233                 */
1234                off = qla82xx_decode_crb_addr((unsigned long)buf[i].addr) +
1235                    QLA82XX_PCI_CRBSPACE;
1236                /* Not all CRB  addr/value pair to be written,
1237                 * some of them are skipped
1238                 */
1239
1240                /* skipping cold reboot MAGIC */
1241                if (off == QLA82XX_CAM_RAM(0x1fc))
1242                        continue;
1243
1244                /* do not reset PCI */
1245                if (off == (ROMUSB_GLB + 0xbc))
1246                        continue;
1247
1248                /* skip core clock, so that firmware can increase the clock */
1249                if (off == (ROMUSB_GLB + 0xc8))
1250                        continue;
1251
1252                /* skip the function enable register */
1253                if (off == QLA82XX_PCIE_REG(PCIE_SETUP_FUNCTION))
1254                        continue;
1255
1256                if (off == QLA82XX_PCIE_REG(PCIE_SETUP_FUNCTION2))
1257                        continue;
1258
1259                if ((off & 0x0ff00000) == QLA82XX_CRB_SMB)
1260                        continue;
1261
1262                if ((off & 0x0ff00000) == QLA82XX_CRB_DDR_NET)
1263                        continue;
1264
1265                if (off == ADDR_ERROR) {
1266                        ql_log(ql_log_fatal, vha, 0x0116,
1267                            "Unknow addr: 0x%08lx.\n", buf[i].addr);
1268                        continue;
1269                }
1270
1271                qla82xx_wr_32(ha, off, buf[i].data);
1272
1273                /* ISP requires much bigger delay to settle down,
1274                 * else crb_window returns 0xffffffff
1275                 */
1276                if (off == QLA82XX_ROMUSB_GLB_SW_RESET)
1277                        msleep(1000);
1278
1279                /* ISP requires millisec delay between
1280                 * successive CRB register updation
1281                 */
1282                msleep(1);
1283        }
1284
1285        kfree(buf);
1286
1287        /* Resetting the data and instruction cache */
1288        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0xec, 0x1e);
1289        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0x4c, 8);
1290        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_I+0x4c, 8);
1291
1292        /* Clear all protocol processing engines */
1293        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0x8, 0);
1294        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0xc, 0);
1295        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0x8, 0);
1296        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0xc, 0);
1297        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0x8, 0);
1298        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0xc, 0);
1299        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0x8, 0);
1300        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0xc, 0);
1301        return 0;
1302}
1303
1304static int
1305qla82xx_pci_mem_write_2M(struct qla_hw_data *ha,
1306                u64 off, void *data, int size)
1307{
1308        int i, j, ret = 0, loop, sz[2], off0;
1309        int scale, shift_amount, startword;
1310        uint32_t temp;
1311        uint64_t off8, mem_crb, tmpw, word[2] = {0, 0};
1312
1313        /*
1314         * If not MN, go check for MS or invalid.
1315         */
1316        if (off >= QLA82XX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX)
1317                mem_crb = QLA82XX_CRB_QDR_NET;
1318        else {
1319                mem_crb = QLA82XX_CRB_DDR_NET;
1320                if (qla82xx_pci_mem_bound_check(ha, off, size) == 0)
1321                        return qla82xx_pci_mem_write_direct(ha,
1322                            off, data, size);
1323        }
1324
1325        off0 = off & 0x7;
1326        sz[0] = (size < (8 - off0)) ? size : (8 - off0);
1327        sz[1] = size - sz[0];
1328
1329        off8 = off & 0xfffffff0;
1330        loop = (((off & 0xf) + size - 1) >> 4) + 1;
1331        shift_amount = 4;
1332        scale = 2;
1333        startword = (off & 0xf)/8;
1334
1335        for (i = 0; i < loop; i++) {
1336                if (qla82xx_pci_mem_read_2M(ha, off8 +
1337                    (i << shift_amount), &word[i * scale], 8))
1338                        return -1;
1339        }
1340
1341        switch (size) {
1342        case 1:
1343                tmpw = *((uint8_t *)data);
1344                break;
1345        case 2:
1346                tmpw = *((uint16_t *)data);
1347                break;
1348        case 4:
1349                tmpw = *((uint32_t *)data);
1350                break;
1351        case 8:
1352        default:
1353                tmpw = *((uint64_t *)data);
1354                break;
1355        }
1356
1357        if (sz[0] == 8) {
1358                word[startword] = tmpw;
1359        } else {
1360                word[startword] &=
1361                        ~((~(~0ULL << (sz[0] * 8))) << (off0 * 8));
1362                word[startword] |= tmpw << (off0 * 8);
1363        }
1364        if (sz[1] != 0) {
1365                word[startword+1] &= ~(~0ULL << (sz[1] * 8));
1366                word[startword+1] |= tmpw >> (sz[0] * 8);
1367        }
1368
1369        for (i = 0; i < loop; i++) {
1370                temp = off8 + (i << shift_amount);
1371                qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_LO, temp);
1372                temp = 0;
1373                qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_HI, temp);
1374                temp = word[i * scale] & 0xffffffff;
1375                qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_LO, temp);
1376                temp = (word[i * scale] >> 32) & 0xffffffff;
1377                qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_HI, temp);
1378                temp = word[i*scale + 1] & 0xffffffff;
1379                qla82xx_wr_32(ha, mem_crb +
1380                    MIU_TEST_AGT_WRDATA_UPPER_LO, temp);
1381                temp = (word[i*scale + 1] >> 32) & 0xffffffff;
1382                qla82xx_wr_32(ha, mem_crb +
1383                    MIU_TEST_AGT_WRDATA_UPPER_HI, temp);
1384
1385                temp = MIU_TA_CTL_ENABLE | MIU_TA_CTL_WRITE;
1386                qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1387                temp = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE | MIU_TA_CTL_WRITE;
1388                qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1389
1390                for (j = 0; j < MAX_CTL_CHECK; j++) {
1391                        temp = qla82xx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL);
1392                        if ((temp & MIU_TA_CTL_BUSY) == 0)
1393                                break;
1394                }
1395
1396                if (j >= MAX_CTL_CHECK) {
1397                        if (printk_ratelimit())
1398                                dev_err(&ha->pdev->dev,
1399                                    "failed to write through agent.\n");
1400                        ret = -1;
1401                        break;
1402                }
1403        }
1404
1405        return ret;
1406}
1407
1408static int
1409qla82xx_fw_load_from_flash(struct qla_hw_data *ha)
1410{
1411        int  i;
1412        long size = 0;
1413        long flashaddr = ha->flt_region_bootload << 2;
1414        long memaddr = BOOTLD_START;
1415        u64 data;
1416        u32 high, low;
1417        size = (IMAGE_START - BOOTLD_START) / 8;
1418
1419        for (i = 0; i < size; i++) {
1420                if ((qla82xx_rom_fast_read(ha, flashaddr, (int *)&low)) ||
1421                    (qla82xx_rom_fast_read(ha, flashaddr + 4, (int *)&high))) {
1422                        return -1;
1423                }
1424                data = ((u64)high << 32) | low ;
1425                qla82xx_pci_mem_write_2M(ha, memaddr, &data, 8);
1426                flashaddr += 8;
1427                memaddr += 8;
1428
1429                if (i % 0x1000 == 0)
1430                        msleep(1);
1431        }
1432        udelay(100);
1433        read_lock(&ha->hw_lock);
1434        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x18, 0x1020);
1435        qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0x80001e);
1436        read_unlock(&ha->hw_lock);
1437        return 0;
1438}
1439
1440int
1441qla82xx_pci_mem_read_2M(struct qla_hw_data *ha,
1442                u64 off, void *data, int size)
1443{
1444        int i, j = 0, k, start, end, loop, sz[2], off0[2];
1445        int           shift_amount;
1446        uint32_t      temp;
1447        uint64_t      off8, val, mem_crb, word[2] = {0, 0};
1448
1449        /*
1450         * If not MN, go check for MS or invalid.
1451         */
1452
1453        if (off >= QLA82XX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX)
1454                mem_crb = QLA82XX_CRB_QDR_NET;
1455        else {
1456                mem_crb = QLA82XX_CRB_DDR_NET;
1457                if (qla82xx_pci_mem_bound_check(ha, off, size) == 0)
1458                        return qla82xx_pci_mem_read_direct(ha,
1459                            off, data, size);
1460        }
1461
1462        off8 = off & 0xfffffff0;
1463        off0[0] = off & 0xf;
1464        sz[0] = (size < (16 - off0[0])) ? size : (16 - off0[0]);
1465        shift_amount = 4;
1466        loop = ((off0[0] + size - 1) >> shift_amount) + 1;
1467        off0[1] = 0;
1468        sz[1] = size - sz[0];
1469
1470        for (i = 0; i < loop; i++) {
1471                temp = off8 + (i << shift_amount);
1472                qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_LO, temp);
1473                temp = 0;
1474                qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_HI, temp);
1475                temp = MIU_TA_CTL_ENABLE;
1476                qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1477                temp = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE;
1478                qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1479
1480                for (j = 0; j < MAX_CTL_CHECK; j++) {
1481                        temp = qla82xx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL);
1482                        if ((temp & MIU_TA_CTL_BUSY) == 0)
1483                                break;
1484                }
1485
1486                if (j >= MAX_CTL_CHECK) {
1487                        if (printk_ratelimit())
1488                                dev_err(&ha->pdev->dev,
1489                                    "failed to read through agent.\n");
1490                        break;
1491                }
1492
1493                start = off0[i] >> 2;
1494                end   = (off0[i] + sz[i] - 1) >> 2;
1495                for (k = start; k <= end; k++) {
1496                        temp = qla82xx_rd_32(ha,
1497                                        mem_crb + MIU_TEST_AGT_RDDATA(k));
1498                        word[i] |= ((uint64_t)temp << (32 * (k & 1)));
1499                }
1500        }
1501
1502        if (j >= MAX_CTL_CHECK)
1503                return -1;
1504
1505        if ((off0[0] & 7) == 0) {
1506                val = word[0];
1507        } else {
1508                val = ((word[0] >> (off0[0] * 8)) & (~(~0ULL << (sz[0] * 8)))) |
1509                        ((word[1] & (~(~0ULL << (sz[1] * 8)))) << (sz[0] * 8));
1510        }
1511
1512        switch (size) {
1513        case 1:
1514                *(uint8_t  *)data = val;
1515                break;
1516        case 2:
1517                *(uint16_t *)data = val;
1518                break;
1519        case 4:
1520                *(uint32_t *)data = val;
1521                break;
1522        case 8:
1523                *(uint64_t *)data = val;
1524                break;
1525        }
1526        return 0;
1527}
1528
1529
1530static struct qla82xx_uri_table_desc *
1531qla82xx_get_table_desc(const u8 *unirom, int section)
1532{
1533        uint32_t i;
1534        struct qla82xx_uri_table_desc *directory =
1535                (struct qla82xx_uri_table_desc *)&unirom[0];
1536        __le32 offset;
1537        __le32 tab_type;
1538        __le32 entries = cpu_to_le32(directory->num_entries);
1539
1540        for (i = 0; i < entries; i++) {
1541                offset = cpu_to_le32(directory->findex) +
1542                    (i * cpu_to_le32(directory->entry_size));
1543                tab_type = cpu_to_le32(*((u32 *)&unirom[offset] + 8));
1544
1545                if (tab_type == section)
1546                        return (struct qla82xx_uri_table_desc *)&unirom[offset];
1547        }
1548
1549        return NULL;
1550}
1551
1552static struct qla82xx_uri_data_desc *
1553qla82xx_get_data_desc(struct qla_hw_data *ha,
1554        u32 section, u32 idx_offset)
1555{
1556        const u8 *unirom = ha->hablob->fw->data;
1557        int idx = cpu_to_le32(*((int *)&unirom[ha->file_prd_off] + idx_offset));
1558        struct qla82xx_uri_table_desc *tab_desc = NULL;
1559        __le32 offset;
1560
1561        tab_desc = qla82xx_get_table_desc(unirom, section);
1562        if (!tab_desc)
1563                return NULL;
1564
1565        offset = cpu_to_le32(tab_desc->findex) +
1566            (cpu_to_le32(tab_desc->entry_size) * idx);
1567
1568        return (struct qla82xx_uri_data_desc *)&unirom[offset];
1569}
1570
1571static u8 *
1572qla82xx_get_bootld_offset(struct qla_hw_data *ha)
1573{
1574        u32 offset = BOOTLD_START;
1575        struct qla82xx_uri_data_desc *uri_desc = NULL;
1576
1577        if (ha->fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
1578                uri_desc = qla82xx_get_data_desc(ha,
1579                    QLA82XX_URI_DIR_SECT_BOOTLD, QLA82XX_URI_BOOTLD_IDX_OFF);
1580                if (uri_desc)
1581                        offset = cpu_to_le32(uri_desc->findex);
1582        }
1583
1584        return (u8 *)&ha->hablob->fw->data[offset];
1585}
1586
1587static __le32
1588qla82xx_get_fw_size(struct qla_hw_data *ha)
1589{
1590        struct qla82xx_uri_data_desc *uri_desc = NULL;
1591
1592        if (ha->fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
1593                uri_desc =  qla82xx_get_data_desc(ha, QLA82XX_URI_DIR_SECT_FW,
1594                    QLA82XX_URI_FIRMWARE_IDX_OFF);
1595                if (uri_desc)
1596                        return cpu_to_le32(uri_desc->size);
1597        }
1598
1599        return cpu_to_le32(*(u32 *)&ha->hablob->fw->data[FW_SIZE_OFFSET]);
1600}
1601
1602static u8 *
1603qla82xx_get_fw_offs(struct qla_hw_data *ha)
1604{
1605        u32 offset = IMAGE_START;
1606        struct qla82xx_uri_data_desc *uri_desc = NULL;
1607
1608        if (ha->fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
1609                uri_desc = qla82xx_get_data_desc(ha, QLA82XX_URI_DIR_SECT_FW,
1610                        QLA82XX_URI_FIRMWARE_IDX_OFF);
1611                if (uri_desc)
1612                        offset = cpu_to_le32(uri_desc->findex);
1613        }
1614
1615        return (u8 *)&ha->hablob->fw->data[offset];
1616}
1617
1618/* PCI related functions */
1619int qla82xx_pci_region_offset(struct pci_dev *pdev, int region)
1620{
1621        unsigned long val = 0;
1622        u32 control;
1623
1624        switch (region) {
1625        case 0:
1626                val = 0;
1627                break;
1628        case 1:
1629                pci_read_config_dword(pdev, QLA82XX_PCI_REG_MSIX_TBL, &control);
1630                val = control + QLA82XX_MSIX_TBL_SPACE;
1631                break;
1632        }
1633        return val;
1634}
1635
1636
1637int
1638qla82xx_iospace_config(struct qla_hw_data *ha)
1639{
1640        uint32_t len = 0;
1641
1642        if (pci_request_regions(ha->pdev, QLA2XXX_DRIVER_NAME)) {
1643                ql_log_pci(ql_log_fatal, ha->pdev, 0x000c,
1644                    "Failed to reserver selected regions.\n");
1645                goto iospace_error_exit;
1646        }
1647
1648        /* Use MMIO operations for all accesses. */
1649        if (!(pci_resource_flags(ha->pdev, 0) & IORESOURCE_MEM)) {
1650                ql_log_pci(ql_log_fatal, ha->pdev, 0x000d,
1651                    "Region #0 not an MMIO resource, aborting.\n");
1652                goto iospace_error_exit;
1653        }
1654
1655        len = pci_resource_len(ha->pdev, 0);
1656        ha->nx_pcibase =
1657            (unsigned long)ioremap(pci_resource_start(ha->pdev, 0), len);
1658        if (!ha->nx_pcibase) {
1659                ql_log_pci(ql_log_fatal, ha->pdev, 0x000e,
1660                    "Cannot remap pcibase MMIO, aborting.\n");
1661                goto iospace_error_exit;
1662        }
1663
1664        /* Mapping of IO base pointer */
1665        if (IS_QLA8044(ha)) {
1666                ha->iobase =
1667                    (device_reg_t __iomem *)((uint8_t *)ha->nx_pcibase);
1668        } else if (IS_QLA82XX(ha)) {
1669                ha->iobase =
1670                    (device_reg_t __iomem *)((uint8_t *)ha->nx_pcibase +
1671                        0xbc000 + (ha->pdev->devfn << 11));
1672        }
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                        goto iospace_error_exit;
1682                }
1683
1684                /* Mapping of IO base pointer,
1685                 * door bell read and write pointer
1686                 */
1687                ha->nxdb_rd_ptr = (uint8_t *) ha->nx_pcibase + (512 * 1024) +
1688                    (ha->pdev->devfn * 8);
1689        } else {
1690                ha->nxdb_wr_ptr = (ha->pdev->devfn == 6 ?
1691                        QLA82XX_CAMRAM_DB1 :
1692                        QLA82XX_CAMRAM_DB2);
1693        }
1694
1695        ha->max_req_queues = ha->max_rsp_queues = 1;
1696        ha->msix_count = ha->max_rsp_queues + 1;
1697        ql_dbg_pci(ql_dbg_multiq, ha->pdev, 0xc006,
1698            "nx_pci_base=%p iobase=%p "
1699            "max_req_queues=%d msix_count=%d.\n",
1700            (void *)ha->nx_pcibase, ha->iobase,
1701            ha->max_req_queues, ha->msix_count);
1702        ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0010,
1703            "nx_pci_base=%p iobase=%p "
1704            "max_req_queues=%d msix_count=%d.\n",
1705            (void *)ha->nx_pcibase, ha->iobase,
1706            ha->max_req_queues, ha->msix_count);
1707        return 0;
1708
1709iospace_error_exit:
1710        return -ENOMEM;
1711}
1712
1713/* GS related functions */
1714
1715/* Initialization related functions */
1716
1717/**
1718 * qla82xx_pci_config() - Setup ISP82xx PCI configuration registers.
1719 * @ha: HA context
1720 *
1721 * Returns 0 on success.
1722*/
1723int
1724qla82xx_pci_config(scsi_qla_host_t *vha)
1725{
1726        struct qla_hw_data *ha = vha->hw;
1727        int ret;
1728
1729        pci_set_master(ha->pdev);
1730        ret = pci_set_mwi(ha->pdev);
1731        ha->chip_revision = ha->pdev->revision;
1732        ql_dbg(ql_dbg_init, vha, 0x0043,
1733            "Chip revision:%d.\n",
1734            ha->chip_revision);
1735        return 0;
1736}
1737
1738/**
1739 * qla82xx_reset_chip() - Setup ISP82xx PCI configuration registers.
1740 * @ha: HA context
1741 *
1742 * Returns 0 on success.
1743 */
1744void
1745qla82xx_reset_chip(scsi_qla_host_t *vha)
1746{
1747        struct qla_hw_data *ha = vha->hw;
1748        ha->isp_ops->disable_intrs(ha);
1749}
1750
1751void qla82xx_config_rings(struct scsi_qla_host *vha)
1752{
1753        struct qla_hw_data *ha = vha->hw;
1754        struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
1755        struct init_cb_81xx *icb;
1756        struct req_que *req = ha->req_q_map[0];
1757        struct rsp_que *rsp = ha->rsp_q_map[0];
1758
1759        /* Setup ring parameters in initialization control block. */
1760        icb = (struct init_cb_81xx *)ha->init_cb;
1761        icb->request_q_outpointer = __constant_cpu_to_le16(0);
1762        icb->response_q_inpointer = __constant_cpu_to_le16(0);
1763        icb->request_q_length = cpu_to_le16(req->length);
1764        icb->response_q_length = cpu_to_le16(rsp->length);
1765        icb->request_q_address[0] = cpu_to_le32(LSD(req->dma));
1766        icb->request_q_address[1] = cpu_to_le32(MSD(req->dma));
1767        icb->response_q_address[0] = cpu_to_le32(LSD(rsp->dma));
1768        icb->response_q_address[1] = cpu_to_le32(MSD(rsp->dma));
1769
1770        WRT_REG_DWORD((unsigned long  __iomem *)&reg->req_q_out[0], 0);
1771        WRT_REG_DWORD((unsigned long  __iomem *)&reg->rsp_q_in[0], 0);
1772        WRT_REG_DWORD((unsigned long  __iomem *)&reg->rsp_q_out[0], 0);
1773}
1774
1775static int
1776qla82xx_fw_load_from_blob(struct qla_hw_data *ha)
1777{
1778        u64 *ptr64;
1779        u32 i, flashaddr, size;
1780        __le64 data;
1781
1782        size = (IMAGE_START - BOOTLD_START) / 8;
1783
1784        ptr64 = (u64 *)qla82xx_get_bootld_offset(ha);
1785        flashaddr = BOOTLD_START;
1786
1787        for (i = 0; i < size; i++) {
1788                data = cpu_to_le64(ptr64[i]);
1789                if (qla82xx_pci_mem_write_2M(ha, flashaddr, &data, 8))
1790                        return -EIO;
1791                flashaddr += 8;
1792        }
1793
1794        flashaddr = FLASH_ADDR_START;
1795        size = (__force u32)qla82xx_get_fw_size(ha) / 8;
1796        ptr64 = (u64 *)qla82xx_get_fw_offs(ha);
1797
1798        for (i = 0; i < size; i++) {
1799                data = cpu_to_le64(ptr64[i]);
1800
1801                if (qla82xx_pci_mem_write_2M(ha, flashaddr, &data, 8))
1802                        return -EIO;
1803                flashaddr += 8;
1804        }
1805        udelay(100);
1806
1807        /* Write a magic value to CAMRAM register
1808         * at a specified offset to indicate
1809         * that all data is written and
1810         * ready for firmware to initialize.
1811         */
1812        qla82xx_wr_32(ha, QLA82XX_CAM_RAM(0x1fc), QLA82XX_BDINFO_MAGIC);
1813
1814        read_lock(&ha->hw_lock);
1815        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x18, 0x1020);
1816        qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0x80001e);
1817        read_unlock(&ha->hw_lock);
1818        return 0;
1819}
1820
1821static int
1822qla82xx_set_product_offset(struct qla_hw_data *ha)
1823{
1824        struct qla82xx_uri_table_desc *ptab_desc = NULL;
1825        const uint8_t *unirom = ha->hablob->fw->data;
1826        uint32_t i;
1827        __le32 entries;
1828        __le32 flags, file_chiprev, offset;
1829        uint8_t chiprev = ha->chip_revision;
1830        /* Hardcoding mn_present flag for P3P */
1831        int mn_present = 0;
1832        uint32_t flagbit;
1833
1834        ptab_desc = qla82xx_get_table_desc(unirom,
1835                 QLA82XX_URI_DIR_SECT_PRODUCT_TBL);
1836       if (!ptab_desc)
1837                return -1;
1838
1839        entries = cpu_to_le32(ptab_desc->num_entries);
1840
1841        for (i = 0; i < entries; i++) {
1842                offset = cpu_to_le32(ptab_desc->findex) +
1843                        (i * cpu_to_le32(ptab_desc->entry_size));
1844                flags = cpu_to_le32(*((int *)&unirom[offset] +
1845                        QLA82XX_URI_FLAGS_OFF));
1846                file_chiprev = cpu_to_le32(*((int *)&unirom[offset] +
1847                        QLA82XX_URI_CHIP_REV_OFF));
1848
1849                flagbit = mn_present ? 1 : 2;
1850
1851                if ((chiprev == file_chiprev) && ((1ULL << flagbit) & flags)) {
1852                        ha->file_prd_off = offset;
1853                        return 0;
1854                }
1855        }
1856        return -1;
1857}
1858
1859static int
1860qla82xx_validate_firmware_blob(scsi_qla_host_t *vha, uint8_t fw_type)
1861{
1862        __le32 val;
1863        uint32_t min_size;
1864        struct qla_hw_data *ha = vha->hw;
1865        const struct firmware *fw = ha->hablob->fw;
1866
1867        ha->fw_type = fw_type;
1868
1869        if (fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
1870                if (qla82xx_set_product_offset(ha))
1871                        return -EINVAL;
1872
1873                min_size = QLA82XX_URI_FW_MIN_SIZE;
1874        } else {
1875                val = cpu_to_le32(*(u32 *)&fw->data[QLA82XX_FW_MAGIC_OFFSET]);
1876                if ((__force u32)val != QLA82XX_BDINFO_MAGIC)
1877                        return -EINVAL;
1878
1879                min_size = QLA82XX_FW_MIN_SIZE;
1880        }
1881
1882        if (fw->size < min_size)
1883                return -EINVAL;
1884        return 0;
1885}
1886
1887static int
1888qla82xx_check_cmdpeg_state(struct qla_hw_data *ha)
1889{
1890        u32 val = 0;
1891        int retries = 60;
1892        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1893
1894        do {
1895                read_lock(&ha->hw_lock);
1896                val = qla82xx_rd_32(ha, CRB_CMDPEG_STATE);
1897                read_unlock(&ha->hw_lock);
1898
1899                switch (val) {
1900                case PHAN_INITIALIZE_COMPLETE:
1901                case PHAN_INITIALIZE_ACK:
1902                        return QLA_SUCCESS;
1903                case PHAN_INITIALIZE_FAILED:
1904                        break;
1905                default:
1906                        break;
1907                }
1908                ql_log(ql_log_info, vha, 0x00a8,
1909                    "CRB_CMDPEG_STATE: 0x%x and retries:0x%x.\n",
1910                    val, retries);
1911
1912                msleep(500);
1913
1914        } while (--retries);
1915
1916        ql_log(ql_log_fatal, vha, 0x00a9,
1917            "Cmd Peg initialization failed: 0x%x.\n", val);
1918
1919        val = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_PEGTUNE_DONE);
1920        read_lock(&ha->hw_lock);
1921        qla82xx_wr_32(ha, CRB_CMDPEG_STATE, PHAN_INITIALIZE_FAILED);
1922        read_unlock(&ha->hw_lock);
1923        return QLA_FUNCTION_FAILED;
1924}
1925
1926static int
1927qla82xx_check_rcvpeg_state(struct qla_hw_data *ha)
1928{
1929        u32 val = 0;
1930        int retries = 60;
1931        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1932
1933        do {
1934                read_lock(&ha->hw_lock);
1935                val = qla82xx_rd_32(ha, CRB_RCVPEG_STATE);
1936                read_unlock(&ha->hw_lock);
1937
1938                switch (val) {
1939                case PHAN_INITIALIZE_COMPLETE:
1940                case PHAN_INITIALIZE_ACK:
1941                        return QLA_SUCCESS;
1942                case PHAN_INITIALIZE_FAILED:
1943                        break;
1944                default:
1945                        break;
1946                }
1947                ql_log(ql_log_info, vha, 0x00ab,
1948                    "CRB_RCVPEG_STATE: 0x%x and retries: 0x%x.\n",
1949                    val, retries);
1950
1951                msleep(500);
1952
1953        } while (--retries);
1954
1955        ql_log(ql_log_fatal, vha, 0x00ac,
1956            "Rcv Peg initializatin failed: 0x%x.\n", val);
1957        read_lock(&ha->hw_lock);
1958        qla82xx_wr_32(ha, CRB_RCVPEG_STATE, PHAN_INITIALIZE_FAILED);
1959        read_unlock(&ha->hw_lock);
1960        return QLA_FUNCTION_FAILED;
1961}
1962
1963/* ISR related functions */
1964static struct qla82xx_legacy_intr_set legacy_intr[] = \
1965        QLA82XX_LEGACY_INTR_CONFIG;
1966
1967/*
1968 * qla82xx_mbx_completion() - Process mailbox command completions.
1969 * @ha: SCSI driver HA context
1970 * @mb0: Mailbox0 register
1971 */
1972void
1973qla82xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
1974{
1975        uint16_t        cnt;
1976        uint16_t __iomem *wptr;
1977        struct qla_hw_data *ha = vha->hw;
1978        struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
1979        wptr = (uint16_t __iomem *)&reg->mailbox_out[1];
1980
1981        /* Load return mailbox registers. */
1982        ha->flags.mbox_int = 1;
1983        ha->mailbox_out[0] = mb0;
1984
1985        for (cnt = 1; cnt < ha->mbx_count; cnt++) {
1986                ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
1987                wptr++;
1988        }
1989
1990        if (!ha->mcp)
1991                ql_dbg(ql_dbg_async, vha, 0x5053,
1992                    "MBX pointer ERROR.\n");
1993}
1994
1995/*
1996 * qla82xx_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
1997 * @irq:
1998 * @dev_id: SCSI driver HA context
1999 * @regs:
2000 *
2001 * Called by system whenever the host adapter generates an interrupt.
2002 *
2003 * Returns handled flag.
2004 */
2005irqreturn_t
2006qla82xx_intr_handler(int irq, void *dev_id)
2007{
2008        scsi_qla_host_t *vha;
2009        struct qla_hw_data *ha;
2010        struct rsp_que *rsp;
2011        struct device_reg_82xx __iomem *reg;
2012        int status = 0, status1 = 0;
2013        unsigned long   flags;
2014        unsigned long   iter;
2015        uint32_t        stat = 0;
2016        uint16_t        mb[4];
2017
2018        rsp = (struct rsp_que *) dev_id;
2019        if (!rsp) {
2020                ql_log(ql_log_info, NULL, 0xb053,
2021                    "%s: NULL response queue pointer.\n", __func__);
2022                return IRQ_NONE;
2023        }
2024        ha = rsp->hw;
2025
2026        if (!ha->flags.msi_enabled) {
2027                status = qla82xx_rd_32(ha, ISR_INT_VECTOR);
2028                if (!(status & ha->nx_legacy_intr.int_vec_bit))
2029                        return IRQ_NONE;
2030
2031                status1 = qla82xx_rd_32(ha, ISR_INT_STATE_REG);
2032                if (!ISR_IS_LEGACY_INTR_TRIGGERED(status1))
2033                        return IRQ_NONE;
2034        }
2035
2036        /* clear the interrupt */
2037        qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_status_reg, 0xffffffff);
2038
2039        /* read twice to ensure write is flushed */
2040        qla82xx_rd_32(ha, ISR_INT_VECTOR);
2041        qla82xx_rd_32(ha, ISR_INT_VECTOR);
2042
2043        reg = &ha->iobase->isp82;
2044
2045        spin_lock_irqsave(&ha->hardware_lock, flags);
2046        vha = pci_get_drvdata(ha->pdev);
2047        for (iter = 1; iter--; ) {
2048
2049                if (RD_REG_DWORD(&reg->host_int)) {
2050                        stat = RD_REG_DWORD(&reg->host_status);
2051
2052                        switch (stat & 0xff) {
2053                        case 0x1:
2054                        case 0x2:
2055                        case 0x10:
2056                        case 0x11:
2057                                qla82xx_mbx_completion(vha, MSW(stat));
2058                                status |= MBX_INTERRUPT;
2059                                break;
2060                        case 0x12:
2061                                mb[0] = MSW(stat);
2062                                mb[1] = RD_REG_WORD(&reg->mailbox_out[1]);
2063                                mb[2] = RD_REG_WORD(&reg->mailbox_out[2]);
2064                                mb[3] = RD_REG_WORD(&reg->mailbox_out[3]);
2065                                qla2x00_async_event(vha, rsp, mb);
2066                                break;
2067                        case 0x13:
2068                                qla24xx_process_response_queue(vha, rsp);
2069                                break;
2070                        default:
2071                                ql_dbg(ql_dbg_async, vha, 0x5054,
2072                                    "Unrecognized interrupt type (%d).\n",
2073                                    stat & 0xff);
2074                                break;
2075                        }
2076                }
2077                WRT_REG_DWORD(&reg->host_int, 0);
2078        }
2079
2080        qla2x00_handle_mbx_completion(ha, status);
2081        spin_unlock_irqrestore(&ha->hardware_lock, flags);
2082
2083        if (!ha->flags.msi_enabled)
2084                qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0xfbff);
2085
2086        return IRQ_HANDLED;
2087}
2088
2089irqreturn_t
2090qla82xx_msix_default(int irq, void *dev_id)
2091{
2092        scsi_qla_host_t *vha;
2093        struct qla_hw_data *ha;
2094        struct rsp_que *rsp;
2095        struct device_reg_82xx __iomem *reg;
2096        int status = 0;
2097        unsigned long flags;
2098        uint32_t stat = 0;
2099        uint16_t mb[4];
2100
2101        rsp = (struct rsp_que *) dev_id;
2102        if (!rsp) {
2103                printk(KERN_INFO
2104                        "%s(): NULL response queue pointer.\n", __func__);
2105                return IRQ_NONE;
2106        }
2107        ha = rsp->hw;
2108
2109        reg = &ha->iobase->isp82;
2110
2111        spin_lock_irqsave(&ha->hardware_lock, flags);
2112        vha = pci_get_drvdata(ha->pdev);
2113        do {
2114                if (RD_REG_DWORD(&reg->host_int)) {
2115                        stat = RD_REG_DWORD(&reg->host_status);
2116
2117                        switch (stat & 0xff) {
2118                        case 0x1:
2119                        case 0x2:
2120                        case 0x10:
2121                        case 0x11:
2122                                qla82xx_mbx_completion(vha, MSW(stat));
2123                                status |= MBX_INTERRUPT;
2124                                break;
2125                        case 0x12:
2126                                mb[0] = MSW(stat);
2127                                mb[1] = RD_REG_WORD(&reg->mailbox_out[1]);
2128                                mb[2] = RD_REG_WORD(&reg->mailbox_out[2]);
2129                                mb[3] = RD_REG_WORD(&reg->mailbox_out[3]);
2130                                qla2x00_async_event(vha, rsp, mb);
2131                                break;
2132                        case 0x13:
2133                                qla24xx_process_response_queue(vha, rsp);
2134                                break;
2135                        default:
2136                                ql_dbg(ql_dbg_async, vha, 0x5041,
2137                                    "Unrecognized interrupt type (%d).\n",
2138                                    stat & 0xff);
2139                                break;
2140                        }
2141                }
2142                WRT_REG_DWORD(&reg->host_int, 0);
2143        } while (0);
2144
2145        qla2x00_handle_mbx_completion(ha, status);
2146        spin_unlock_irqrestore(&ha->hardware_lock, flags);
2147
2148        return IRQ_HANDLED;
2149}
2150
2151irqreturn_t
2152qla82xx_msix_rsp_q(int irq, void *dev_id)
2153{
2154        scsi_qla_host_t *vha;
2155        struct qla_hw_data *ha;
2156        struct rsp_que *rsp;
2157        struct device_reg_82xx __iomem *reg;
2158        unsigned long flags;
2159
2160        rsp = (struct rsp_que *) dev_id;
2161        if (!rsp) {
2162                printk(KERN_INFO
2163                        "%s(): NULL response queue pointer.\n", __func__);
2164                return IRQ_NONE;
2165        }
2166
2167        ha = rsp->hw;
2168        reg = &ha->iobase->isp82;
2169        spin_lock_irqsave(&ha->hardware_lock, flags);
2170        vha = pci_get_drvdata(ha->pdev);
2171        qla24xx_process_response_queue(vha, rsp);
2172        WRT_REG_DWORD(&reg->host_int, 0);
2173        spin_unlock_irqrestore(&ha->hardware_lock, flags);
2174        return IRQ_HANDLED;
2175}
2176
2177void
2178qla82xx_poll(int irq, void *dev_id)
2179{
2180        scsi_qla_host_t *vha;
2181        struct qla_hw_data *ha;
2182        struct rsp_que *rsp;
2183        struct device_reg_82xx __iomem *reg;
2184        int status = 0;
2185        uint32_t stat;
2186        uint16_t mb[4];
2187        unsigned long flags;
2188
2189        rsp = (struct rsp_que *) dev_id;
2190        if (!rsp) {
2191                printk(KERN_INFO
2192                        "%s(): NULL response queue pointer.\n", __func__);
2193                return;
2194        }
2195        ha = rsp->hw;
2196
2197        reg = &ha->iobase->isp82;
2198        spin_lock_irqsave(&ha->hardware_lock, flags);
2199        vha = pci_get_drvdata(ha->pdev);
2200
2201        if (RD_REG_DWORD(&reg->host_int)) {
2202                stat = RD_REG_DWORD(&reg->host_status);
2203                switch (stat & 0xff) {
2204                case 0x1:
2205                case 0x2:
2206                case 0x10:
2207                case 0x11:
2208                        qla82xx_mbx_completion(vha, MSW(stat));
2209                        status |= MBX_INTERRUPT;
2210                        break;
2211                case 0x12:
2212                        mb[0] = MSW(stat);
2213                        mb[1] = RD_REG_WORD(&reg->mailbox_out[1]);
2214                        mb[2] = RD_REG_WORD(&reg->mailbox_out[2]);
2215                        mb[3] = RD_REG_WORD(&reg->mailbox_out[3]);
2216                        qla2x00_async_event(vha, rsp, mb);
2217                        break;
2218                case 0x13:
2219                        qla24xx_process_response_queue(vha, rsp);
2220                        break;
2221                default:
2222                        ql_dbg(ql_dbg_p3p, vha, 0xb013,
2223                            "Unrecognized interrupt type (%d).\n",
2224                            stat * 0xff);
2225                        break;
2226                }
2227        }
2228        WRT_REG_DWORD(&reg->host_int, 0);
2229        spin_unlock_irqrestore(&ha->hardware_lock, flags);
2230}
2231
2232void
2233qla82xx_enable_intrs(struct qla_hw_data *ha)
2234{
2235        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2236        qla82xx_mbx_intr_enable(vha);
2237        spin_lock_irq(&ha->hardware_lock);
2238        if (IS_QLA8044(ha))
2239                qla8044_wr_reg(ha, LEG_INTR_MASK_OFFSET, 0);
2240        else
2241                qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0xfbff);
2242        spin_unlock_irq(&ha->hardware_lock);
2243        ha->interrupts_on = 1;
2244}
2245
2246void
2247qla82xx_disable_intrs(struct qla_hw_data *ha)
2248{
2249        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2250        qla82xx_mbx_intr_disable(vha);
2251        spin_lock_irq(&ha->hardware_lock);
2252        if (IS_QLA8044(ha))
2253                qla8044_wr_reg(ha, LEG_INTR_MASK_OFFSET, 1);
2254        else
2255                qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0x0400);
2256        spin_unlock_irq(&ha->hardware_lock);
2257        ha->interrupts_on = 0;
2258}
2259
2260void qla82xx_init_flags(struct qla_hw_data *ha)
2261{
2262        struct qla82xx_legacy_intr_set *nx_legacy_intr;
2263
2264        /* ISP 8021 initializations */
2265        rwlock_init(&ha->hw_lock);
2266        ha->qdr_sn_window = -1;
2267        ha->ddr_mn_window = -1;
2268        ha->curr_window = 255;
2269        ha->portnum = PCI_FUNC(ha->pdev->devfn);
2270        nx_legacy_intr = &legacy_intr[ha->portnum];
2271        ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit;
2272        ha->nx_legacy_intr.tgt_status_reg = nx_legacy_intr->tgt_status_reg;
2273        ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg;
2274        ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg;
2275}
2276
2277inline void
2278qla82xx_set_idc_version(scsi_qla_host_t *vha)
2279{
2280        int idc_ver;
2281        uint32_t drv_active;
2282        struct qla_hw_data *ha = vha->hw;
2283
2284        drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2285        if (drv_active == (QLA82XX_DRV_ACTIVE << (ha->portnum * 4))) {
2286                qla82xx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION,
2287                    QLA82XX_IDC_VERSION);
2288                ql_log(ql_log_info, vha, 0xb082,
2289                    "IDC version updated to %d\n", QLA82XX_IDC_VERSION);
2290        } else {
2291                idc_ver = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_IDC_VERSION);
2292                if (idc_ver != QLA82XX_IDC_VERSION)
2293                        ql_log(ql_log_info, vha, 0xb083,
2294                            "qla2xxx driver IDC version %d is not compatible "
2295                            "with IDC version %d of the other drivers\n",
2296                            QLA82XX_IDC_VERSION, idc_ver);
2297        }
2298}
2299
2300inline void
2301qla82xx_set_drv_active(scsi_qla_host_t *vha)
2302{
2303        uint32_t drv_active;
2304        struct qla_hw_data *ha = vha->hw;
2305
2306        drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2307
2308        /* If reset value is all FF's, initialize DRV_ACTIVE */
2309        if (drv_active == 0xffffffff) {
2310                qla82xx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE,
2311                        QLA82XX_DRV_NOT_ACTIVE);
2312                drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2313        }
2314        drv_active |= (QLA82XX_DRV_ACTIVE << (ha->portnum * 4));
2315        qla82xx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE, drv_active);
2316}
2317
2318inline void
2319qla82xx_clear_drv_active(struct qla_hw_data *ha)
2320{
2321        uint32_t drv_active;
2322
2323        drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2324        drv_active &= ~(QLA82XX_DRV_ACTIVE << (ha->portnum * 4));
2325        qla82xx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE, drv_active);
2326}
2327
2328static inline int
2329qla82xx_need_reset(struct qla_hw_data *ha)
2330{
2331        uint32_t drv_state;
2332        int rval;
2333
2334        if (ha->flags.nic_core_reset_owner)
2335                return 1;
2336        else {
2337                drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2338                rval = drv_state & (QLA82XX_DRVST_RST_RDY << (ha->portnum * 4));
2339                return rval;
2340        }
2341}
2342
2343static inline void
2344qla82xx_set_rst_ready(struct qla_hw_data *ha)
2345{
2346        uint32_t drv_state;
2347        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2348
2349        drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2350
2351        /* If reset value is all FF's, initialize DRV_STATE */
2352        if (drv_state == 0xffffffff) {
2353                qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, QLA82XX_DRVST_NOT_RDY);
2354                drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2355        }
2356        drv_state |= (QLA82XX_DRVST_RST_RDY << (ha->portnum * 4));
2357        ql_dbg(ql_dbg_init, vha, 0x00bb,
2358            "drv_state = 0x%08x.\n", drv_state);
2359        qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, drv_state);
2360}
2361
2362static inline void
2363qla82xx_clear_rst_ready(struct qla_hw_data *ha)
2364{
2365        uint32_t drv_state;
2366
2367        drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2368        drv_state &= ~(QLA82XX_DRVST_RST_RDY << (ha->portnum * 4));
2369        qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, drv_state);
2370}
2371
2372static inline void
2373qla82xx_set_qsnt_ready(struct qla_hw_data *ha)
2374{
2375        uint32_t qsnt_state;
2376
2377        qsnt_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2378        qsnt_state |= (QLA82XX_DRVST_QSNT_RDY << (ha->portnum * 4));
2379        qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, qsnt_state);
2380}
2381
2382void
2383qla82xx_clear_qsnt_ready(scsi_qla_host_t *vha)
2384{
2385        struct qla_hw_data *ha = vha->hw;
2386        uint32_t qsnt_state;
2387
2388        qsnt_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2389        qsnt_state &= ~(QLA82XX_DRVST_QSNT_RDY << (ha->portnum * 4));
2390        qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, qsnt_state);
2391}
2392
2393static int
2394qla82xx_load_fw(scsi_qla_host_t *vha)
2395{
2396        int rst;
2397        struct fw_blob *blob;
2398        struct qla_hw_data *ha = vha->hw;
2399
2400        if (qla82xx_pinit_from_rom(vha) != QLA_SUCCESS) {
2401                ql_log(ql_log_fatal, vha, 0x009f,
2402                    "Error during CRB initialization.\n");
2403                return QLA_FUNCTION_FAILED;
2404        }
2405        udelay(500);
2406
2407        /* Bring QM and CAMRAM out of reset */
2408        rst = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET);
2409        rst &= ~((1 << 28) | (1 << 24));
2410        qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, rst);
2411
2412        /*
2413         * FW Load priority:
2414         * 1) Operational firmware residing in flash.
2415         * 2) Firmware via request-firmware interface (.bin file).
2416         */
2417        if (ql2xfwloadbin == 2)
2418                goto try_blob_fw;
2419
2420        ql_log(ql_log_info, vha, 0x00a0,
2421            "Attempting to load firmware from flash.\n");
2422
2423        if (qla82xx_fw_load_from_flash(ha) == QLA_SUCCESS) {
2424                ql_log(ql_log_info, vha, 0x00a1,
2425                    "Firmware loaded successfully from flash.\n");
2426                return QLA_SUCCESS;
2427        } else {
2428                ql_log(ql_log_warn, vha, 0x0108,
2429                    "Firmware load from flash failed.\n");
2430        }
2431
2432try_blob_fw:
2433        ql_log(ql_log_info, vha, 0x00a2,
2434            "Attempting to load firmware from blob.\n");
2435
2436        /* Load firmware blob. */
2437        blob = ha->hablob = qla2x00_request_firmware(vha);
2438        if (!blob) {
2439                ql_log(ql_log_fatal, vha, 0x00a3,
2440                    "Firmware image not present.\n");
2441                goto fw_load_failed;
2442        }
2443
2444        /* Validating firmware blob */
2445        if (qla82xx_validate_firmware_blob(vha,
2446                QLA82XX_FLASH_ROMIMAGE)) {
2447                /* Fallback to URI format */
2448                if (qla82xx_validate_firmware_blob(vha,
2449                        QLA82XX_UNIFIED_ROMIMAGE)) {
2450                        ql_log(ql_log_fatal, vha, 0x00a4,
2451                            "No valid firmware image found.\n");
2452                        return QLA_FUNCTION_FAILED;
2453                }
2454        }
2455
2456        if (qla82xx_fw_load_from_blob(ha) == QLA_SUCCESS) {
2457                ql_log(ql_log_info, vha, 0x00a5,
2458                    "Firmware loaded successfully from binary blob.\n");
2459                return QLA_SUCCESS;
2460        } else {
2461                ql_log(ql_log_fatal, vha, 0x00a6,
2462                    "Firmware load failed for binary blob.\n");
2463                blob->fw = NULL;
2464                blob = NULL;
2465                goto fw_load_failed;
2466        }
2467        return QLA_SUCCESS;
2468
2469fw_load_failed:
2470        return QLA_FUNCTION_FAILED;
2471}
2472
2473int
2474qla82xx_start_firmware(scsi_qla_host_t *vha)
2475{
2476        uint16_t      lnk;
2477        struct qla_hw_data *ha = vha->hw;
2478
2479        /* scrub dma mask expansion register */
2480        qla82xx_wr_32(ha, CRB_DMA_SHIFT, QLA82XX_DMA_SHIFT_VALUE);
2481
2482        /* Put both the PEG CMD and RCV PEG to default state
2483         * of 0 before resetting the hardware
2484         */
2485        qla82xx_wr_32(ha, CRB_CMDPEG_STATE, 0);
2486        qla82xx_wr_32(ha, CRB_RCVPEG_STATE, 0);
2487
2488        /* Overwrite stale initialization register values */
2489        qla82xx_wr_32(ha, QLA82XX_PEG_HALT_STATUS1, 0);
2490        qla82xx_wr_32(ha, QLA82XX_PEG_HALT_STATUS2, 0);
2491
2492        if (qla82xx_load_fw(vha) != QLA_SUCCESS) {
2493                ql_log(ql_log_fatal, vha, 0x00a7,
2494                    "Error trying to start fw.\n");
2495                return QLA_FUNCTION_FAILED;
2496        }
2497
2498        /* Handshake with the card before we register the devices. */
2499        if (qla82xx_check_cmdpeg_state(ha) != QLA_SUCCESS) {
2500                ql_log(ql_log_fatal, vha, 0x00aa,
2501                    "Error during card handshake.\n");
2502                return QLA_FUNCTION_FAILED;
2503        }
2504
2505        /* Negotiated Link width */
2506        pcie_capability_read_word(ha->pdev, PCI_EXP_LNKSTA, &lnk);
2507        ha->link_width = (lnk >> 4) & 0x3f;
2508
2509        /* Synchronize with Receive peg */
2510        return qla82xx_check_rcvpeg_state(ha);
2511}
2512
2513static uint32_t *
2514qla82xx_read_flash_data(scsi_qla_host_t *vha, uint32_t *dwptr, uint32_t faddr,
2515        uint32_t length)
2516{
2517        uint32_t i;
2518        uint32_t val;
2519        struct qla_hw_data *ha = vha->hw;
2520
2521        /* Dword reads to flash. */
2522        for (i = 0; i < length/4; i++, faddr += 4) {
2523                if (qla82xx_rom_fast_read(ha, faddr, &val)) {
2524                        ql_log(ql_log_warn, vha, 0x0106,
2525                            "Do ROM fast read failed.\n");
2526                        goto done_read;
2527                }
2528                dwptr[i] = __constant_cpu_to_le32(val);
2529        }
2530done_read:
2531        return dwptr;
2532}
2533
2534static int
2535qla82xx_unprotect_flash(struct qla_hw_data *ha)
2536{
2537        int ret;
2538        uint32_t val;
2539        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2540
2541        ret = ql82xx_rom_lock_d(ha);
2542        if (ret < 0) {
2543                ql_log(ql_log_warn, vha, 0xb014,
2544                    "ROM Lock failed.\n");
2545                return ret;
2546        }
2547
2548        ret = qla82xx_read_status_reg(ha, &val);
2549        if (ret < 0)
2550                goto done_unprotect;
2551
2552        val &= ~(BLOCK_PROTECT_BITS << 2);
2553        ret = qla82xx_write_status_reg(ha, val);
2554        if (ret < 0) {
2555                val |= (BLOCK_PROTECT_BITS << 2);
2556                qla82xx_write_status_reg(ha, val);
2557        }
2558
2559        if (qla82xx_write_disable_flash(ha) != 0)
2560                ql_log(ql_log_warn, vha, 0xb015,
2561                    "Write disable failed.\n");
2562
2563done_unprotect:
2564        qla82xx_rom_unlock(ha);
2565        return ret;
2566}
2567
2568static int
2569qla82xx_protect_flash(struct qla_hw_data *ha)
2570{
2571        int ret;
2572        uint32_t val;
2573        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2574
2575        ret = ql82xx_rom_lock_d(ha);
2576        if (ret < 0) {
2577                ql_log(ql_log_warn, vha, 0xb016,
2578                    "ROM Lock failed.\n");
2579                return ret;
2580        }
2581
2582        ret = qla82xx_read_status_reg(ha, &val);
2583        if (ret < 0)
2584                goto done_protect;
2585
2586        val |= (BLOCK_PROTECT_BITS << 2);
2587        /* LOCK all sectors */
2588        ret = qla82xx_write_status_reg(ha, val);
2589        if (ret < 0)
2590                ql_log(ql_log_warn, vha, 0xb017,
2591                    "Write status register failed.\n");
2592
2593        if (qla82xx_write_disable_flash(ha) != 0)
2594                ql_log(ql_log_warn, vha, 0xb018,
2595                    "Write disable failed.\n");
2596done_protect:
2597        qla82xx_rom_unlock(ha);
2598        return ret;
2599}
2600
2601static int
2602qla82xx_erase_sector(struct qla_hw_data *ha, int addr)
2603{
2604        int ret = 0;
2605        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2606
2607        ret = ql82xx_rom_lock_d(ha);
2608        if (ret < 0) {
2609                ql_log(ql_log_warn, vha, 0xb019,
2610                    "ROM Lock failed.\n");
2611                return ret;
2612        }
2613
2614        qla82xx_flash_set_write_enable(ha);
2615        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ADDRESS, addr);
2616        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 3);
2617        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_SE);
2618
2619        if (qla82xx_wait_rom_done(ha)) {
2620                ql_log(ql_log_warn, vha, 0xb01a,
2621                    "Error waiting for rom done.\n");
2622                ret = -1;
2623                goto done;
2624        }
2625        ret = qla82xx_flash_wait_write_finish(ha);
2626done:
2627        qla82xx_rom_unlock(ha);
2628        return ret;
2629}
2630
2631/*
2632 * Address and length are byte address
2633 */
2634uint8_t *
2635qla82xx_read_optrom_data(struct scsi_qla_host *vha, uint8_t *buf,
2636        uint32_t offset, uint32_t length)
2637{
2638        scsi_block_requests(vha->host);
2639        qla82xx_read_flash_data(vha, (uint32_t *)buf, offset, length);
2640        scsi_unblock_requests(vha->host);
2641        return buf;
2642}
2643
2644static int
2645qla82xx_write_flash_data(struct scsi_qla_host *vha, uint32_t *dwptr,
2646        uint32_t faddr, uint32_t dwords)
2647{
2648        int ret;
2649        uint32_t liter;
2650        uint32_t sec_mask, rest_addr;
2651        dma_addr_t optrom_dma;
2652        void *optrom = NULL;
2653        int page_mode = 0;
2654        struct qla_hw_data *ha = vha->hw;
2655
2656        ret = -1;
2657
2658        /* Prepare burst-capable write on supported ISPs. */
2659        if (page_mode && !(faddr & 0xfff) &&
2660            dwords > OPTROM_BURST_DWORDS) {
2661                optrom = dma_alloc_coherent(&ha->pdev->dev, OPTROM_BURST_SIZE,
2662                    &optrom_dma, GFP_KERNEL);
2663                if (!optrom) {
2664                        ql_log(ql_log_warn, vha, 0xb01b,
2665                            "Unable to allocate memory "
2666                            "for optrom burst write (%x KB).\n",
2667                            OPTROM_BURST_SIZE / 1024);
2668                }
2669        }
2670
2671        rest_addr = ha->fdt_block_size - 1;
2672        sec_mask = ~rest_addr;
2673
2674        ret = qla82xx_unprotect_flash(ha);
2675        if (ret) {
2676                ql_log(ql_log_warn, vha, 0xb01c,
2677                    "Unable to unprotect flash for update.\n");
2678                goto write_done;
2679        }
2680
2681        for (liter = 0; liter < dwords; liter++, faddr += 4, dwptr++) {
2682                /* Are we at the beginning of a sector? */
2683                if ((faddr & rest_addr) == 0) {
2684
2685                        ret = qla82xx_erase_sector(ha, faddr);
2686                        if (ret) {
2687                                ql_log(ql_log_warn, vha, 0xb01d,
2688                                    "Unable to erase sector: address=%x.\n",
2689                                    faddr);
2690                                break;
2691                        }
2692                }
2693
2694                /* Go with burst-write. */
2695                if (optrom && (liter + OPTROM_BURST_DWORDS) <= dwords) {
2696                        /* Copy data to DMA'ble buffer. */
2697                        memcpy(optrom, dwptr, OPTROM_BURST_SIZE);
2698
2699                        ret = qla2x00_load_ram(vha, optrom_dma,
2700                            (ha->flash_data_off | faddr),
2701                            OPTROM_BURST_DWORDS);
2702                        if (ret != QLA_SUCCESS) {
2703                                ql_log(ql_log_warn, vha, 0xb01e,
2704                                    "Unable to burst-write optrom segment "
2705                                    "(%x/%x/%llx).\n", ret,
2706                                    (ha->flash_data_off | faddr),
2707                                    (unsigned long long)optrom_dma);
2708                                ql_log(ql_log_warn, vha, 0xb01f,
2709                                    "Reverting to slow-write.\n");
2710
2711                                dma_free_coherent(&ha->pdev->dev,
2712                                    OPTROM_BURST_SIZE, optrom, optrom_dma);
2713                                optrom = NULL;
2714                        } else {
2715                                liter += OPTROM_BURST_DWORDS - 1;
2716                                faddr += OPTROM_BURST_DWORDS - 1;
2717                                dwptr += OPTROM_BURST_DWORDS - 1;
2718                                continue;
2719                        }
2720                }
2721
2722                ret = qla82xx_write_flash_dword(ha, faddr,
2723                    cpu_to_le32(*dwptr));
2724                if (ret) {
2725                        ql_dbg(ql_dbg_p3p, vha, 0xb020,
2726                            "Unable to program flash address=%x data=%x.\n",
2727                            faddr, *dwptr);
2728                        break;
2729                }
2730        }
2731
2732        ret = qla82xx_protect_flash(ha);
2733        if (ret)
2734                ql_log(ql_log_warn, vha, 0xb021,
2735                    "Unable to protect flash after update.\n");
2736write_done:
2737        if (optrom)
2738                dma_free_coherent(&ha->pdev->dev,
2739                    OPTROM_BURST_SIZE, optrom, optrom_dma);
2740        return ret;
2741}
2742
2743int
2744qla82xx_write_optrom_data(struct scsi_qla_host *vha, uint8_t *buf,
2745        uint32_t offset, uint32_t length)
2746{
2747        int rval;
2748
2749        /* Suspend HBA. */
2750        scsi_block_requests(vha->host);
2751        rval = qla82xx_write_flash_data(vha, (uint32_t *)buf, offset,
2752                length >> 2);
2753        scsi_unblock_requests(vha->host);
2754
2755        /* Convert return ISP82xx to generic */
2756        if (rval)
2757                rval = QLA_FUNCTION_FAILED;
2758        else
2759                rval = QLA_SUCCESS;
2760        return rval;
2761}
2762
2763void
2764qla82xx_start_iocbs(scsi_qla_host_t *vha)
2765{
2766        struct qla_hw_data *ha = vha->hw;
2767        struct req_que *req = ha->req_q_map[0];
2768        struct device_reg_82xx __iomem *reg;
2769        uint32_t dbval;
2770
2771        /* Adjust ring index. */
2772        req->ring_index++;
2773        if (req->ring_index == req->length) {
2774                req->ring_index = 0;
2775                req->ring_ptr = req->ring;
2776        } else
2777                req->ring_ptr++;
2778
2779        reg = &ha->iobase->isp82;
2780        dbval = 0x04 | (ha->portnum << 5);
2781
2782        dbval = dbval | (req->id << 8) | (req->ring_index << 16);
2783        if (ql2xdbwr)
2784                qla82xx_wr_32(ha, ha->nxdb_wr_ptr, dbval);
2785        else {
2786                WRT_REG_DWORD((unsigned long __iomem *)ha->nxdb_wr_ptr, dbval);
2787                wmb();
2788                while (RD_REG_DWORD((void __iomem *)ha->nxdb_rd_ptr) != dbval) {
2789                        WRT_REG_DWORD((unsigned long  __iomem *)ha->nxdb_wr_ptr,
2790                                dbval);
2791                        wmb();
2792                }
2793        }
2794}
2795
2796static void
2797qla82xx_rom_lock_recovery(struct qla_hw_data *ha)
2798{
2799        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2800
2801        if (qla82xx_rom_lock(ha))
2802                /* Someone else is holding the lock. */
2803                ql_log(ql_log_info, vha, 0xb022,
2804                    "Resetting rom_lock.\n");
2805
2806        /*
2807         * Either we got the lock, or someone
2808         * else died while holding it.
2809         * In either case, unlock.
2810         */
2811        qla82xx_rom_unlock(ha);
2812}
2813
2814/*
2815 * qla82xx_device_bootstrap
2816 *    Initialize device, set DEV_READY, start fw
2817 *
2818 * Note:
2819 *      IDC lock must be held upon entry
2820 *
2821 * Return:
2822 *    Success : 0
2823 *    Failed  : 1
2824 */
2825static int
2826qla82xx_device_bootstrap(scsi_qla_host_t *vha)
2827{
2828        int rval = QLA_SUCCESS;
2829        int i, timeout;
2830        uint32_t old_count, count;
2831        struct qla_hw_data *ha = vha->hw;
2832        int need_reset = 0, peg_stuck = 1;
2833
2834        need_reset = qla82xx_need_reset(ha);
2835
2836        old_count = qla82xx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER);
2837
2838        for (i = 0; i < 10; i++) {
2839                timeout = msleep_interruptible(200);
2840                if (timeout) {
2841                        qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
2842                                QLA8XXX_DEV_FAILED);
2843                        return QLA_FUNCTION_FAILED;
2844                }
2845
2846                count = qla82xx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER);
2847                if (count != old_count)
2848                        peg_stuck = 0;
2849        }
2850
2851        if (need_reset) {
2852                /* We are trying to perform a recovery here. */
2853                if (peg_stuck)
2854                        qla82xx_rom_lock_recovery(ha);
2855                goto dev_initialize;
2856        } else  {
2857                /* Start of day for this ha context. */
2858                if (peg_stuck) {
2859                        /* Either we are the first or recovery in progress. */
2860                        qla82xx_rom_lock_recovery(ha);
2861                        goto dev_initialize;
2862                } else
2863                        /* Firmware already running. */
2864                        goto dev_ready;
2865        }
2866
2867        return rval;
2868
2869dev_initialize:
2870        /* set to DEV_INITIALIZING */
2871        ql_log(ql_log_info, vha, 0x009e,
2872            "HW State: INITIALIZING.\n");
2873        qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_INITIALIZING);
2874
2875        qla82xx_idc_unlock(ha);
2876        rval = qla82xx_start_firmware(vha);
2877        qla82xx_idc_lock(ha);
2878
2879        if (rval != QLA_SUCCESS) {
2880                ql_log(ql_log_fatal, vha, 0x00ad,
2881                    "HW State: FAILED.\n");
2882                qla82xx_clear_drv_active(ha);
2883                qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_FAILED);
2884                return rval;
2885        }
2886
2887dev_ready:
2888        ql_log(ql_log_info, vha, 0x00ae,
2889            "HW State: READY.\n");
2890        qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_READY);
2891
2892        return QLA_SUCCESS;
2893}
2894
2895/*
2896* qla82xx_need_qsnt_handler
2897*    Code to start quiescence sequence
2898*
2899* Note:
2900*      IDC lock must be held upon entry
2901*
2902* Return: void
2903*/
2904
2905static void
2906qla82xx_need_qsnt_handler(scsi_qla_host_t *vha)
2907{
2908        struct qla_hw_data *ha = vha->hw;
2909        uint32_t dev_state, drv_state, drv_active;
2910        unsigned long reset_timeout;
2911
2912        if (vha->flags.online) {
2913                /*Block any further I/O and wait for pending cmnds to complete*/
2914                qla2x00_quiesce_io(vha);
2915        }
2916
2917        /* Set the quiescence ready bit */
2918        qla82xx_set_qsnt_ready(ha);
2919
2920        /*wait for 30 secs for other functions to ack */
2921        reset_timeout = jiffies + (30 * HZ);
2922
2923        drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2924        drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2925        /* Its 2 that is written when qsnt is acked, moving one bit */
2926        drv_active = drv_active << 0x01;
2927
2928        while (drv_state != drv_active) {
2929
2930                if (time_after_eq(jiffies, reset_timeout)) {
2931                        /* quiescence timeout, other functions didn't ack
2932                         * changing the state to DEV_READY
2933                         */
2934                        ql_log(ql_log_info, vha, 0xb023,
2935                            "%s : QUIESCENT TIMEOUT DRV_ACTIVE:%d "
2936                            "DRV_STATE:%d.\n", QLA2XXX_DRIVER_NAME,
2937                            drv_active, drv_state);
2938                        qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
2939                            QLA8XXX_DEV_READY);
2940                        ql_log(ql_log_info, vha, 0xb025,
2941                            "HW State: DEV_READY.\n");
2942                        qla82xx_idc_unlock(ha);
2943                        qla2x00_perform_loop_resync(vha);
2944                        qla82xx_idc_lock(ha);
2945
2946                        qla82xx_clear_qsnt_ready(vha);
2947                        return;
2948                }
2949
2950                qla82xx_idc_unlock(ha);
2951                msleep(1000);
2952                qla82xx_idc_lock(ha);
2953
2954                drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2955                drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2956                drv_active = drv_active << 0x01;
2957        }
2958        dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
2959        /* everyone acked so set the state to DEV_QUIESCENCE */
2960        if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT) {
2961                ql_log(ql_log_info, vha, 0xb026,
2962                    "HW State: DEV_QUIESCENT.\n");
2963                qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_QUIESCENT);
2964        }
2965}
2966
2967/*
2968* qla82xx_wait_for_state_change
2969*    Wait for device state to change from given current state
2970*
2971* Note:
2972*     IDC lock must not be held upon entry
2973*
2974* Return:
2975*    Changed device state.
2976*/
2977uint32_t
2978qla82xx_wait_for_state_change(scsi_qla_host_t *vha, uint32_t curr_state)
2979{
2980        struct qla_hw_data *ha = vha->hw;
2981        uint32_t dev_state;
2982
2983        do {
2984                msleep(1000);
2985                qla82xx_idc_lock(ha);
2986                dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
2987                qla82xx_idc_unlock(ha);
2988        } while (dev_state == curr_state);
2989
2990        return dev_state;
2991}
2992
2993void
2994qla8xxx_dev_failed_handler(scsi_qla_host_t *vha)
2995{
2996        struct qla_hw_data *ha = vha->hw;
2997
2998        /* Disable the board */
2999        ql_log(ql_log_fatal, vha, 0x00b8,
3000            "Disabling the board.\n");
3001
3002        if (IS_QLA82XX(ha)) {
3003                qla82xx_clear_drv_active(ha);
3004                qla82xx_idc_unlock(ha);
3005        } else if (IS_QLA8044(ha)) {
3006                qla8044_clear_drv_active(vha);
3007                qla8044_idc_unlock(ha);
3008        }
3009
3010        /* Set DEV_FAILED flag to disable timer */
3011        vha->device_flags |= DFLG_DEV_FAILED;
3012        qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
3013        qla2x00_mark_all_devices_lost(vha, 0);
3014        vha->flags.online = 0;
3015        vha->flags.init_done = 0;
3016}
3017
3018/*
3019 * qla82xx_need_reset_handler
3020 *    Code to start reset sequence
3021 *
3022 * Note:
3023 *      IDC lock must be held upon entry
3024 *
3025 * Return:
3026 *    Success : 0
3027 *    Failed  : 1
3028 */
3029static void
3030qla82xx_need_reset_handler(scsi_qla_host_t *vha)
3031{
3032        uint32_t dev_state, drv_state, drv_active;
3033        uint32_t active_mask = 0;
3034        unsigned long reset_timeout;
3035        struct qla_hw_data *ha = vha->hw;
3036        struct req_que *req = ha->req_q_map[0];
3037
3038        if (vha->flags.online) {
3039                qla82xx_idc_unlock(ha);
3040                qla2x00_abort_isp_cleanup(vha);
3041                ha->isp_ops->get_flash_version(vha, req->ring);
3042                ha->isp_ops->nvram_config(vha);
3043                qla82xx_idc_lock(ha);
3044        }
3045
3046        drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3047        if (!ha->flags.nic_core_reset_owner) {
3048                ql_dbg(ql_dbg_p3p, vha, 0xb028,
3049                    "reset_acknowledged by 0x%x\n", ha->portnum);
3050                qla82xx_set_rst_ready(ha);
3051        } else {
3052                active_mask = ~(QLA82XX_DRV_ACTIVE << (ha->portnum * 4));
3053                drv_active &= active_mask;
3054                ql_dbg(ql_dbg_p3p, vha, 0xb029,
3055                    "active_mask: 0x%08x\n", active_mask);
3056        }
3057
3058        /* wait for 10 seconds for reset ack from all functions */
3059        reset_timeout = jiffies + (ha->fcoe_reset_timeout * HZ);
3060
3061        drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
3062        drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3063        dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3064
3065        ql_dbg(ql_dbg_p3p, vha, 0xb02a,
3066            "drv_state: 0x%08x, drv_active: 0x%08x, "
3067            "dev_state: 0x%08x, active_mask: 0x%08x\n",
3068            drv_state, drv_active, dev_state, active_mask);
3069
3070        while (drv_state != drv_active &&
3071            dev_state != QLA8XXX_DEV_INITIALIZING) {
3072                if (time_after_eq(jiffies, reset_timeout)) {
3073                        ql_log(ql_log_warn, vha, 0x00b5,
3074                            "Reset timeout.\n");
3075                        break;
3076                }
3077                qla82xx_idc_unlock(ha);
3078                msleep(1000);
3079                qla82xx_idc_lock(ha);
3080                drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
3081                drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3082                if (ha->flags.nic_core_reset_owner)
3083                        drv_active &= active_mask;
3084                dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3085        }
3086
3087        ql_dbg(ql_dbg_p3p, vha, 0xb02b,
3088            "drv_state: 0x%08x, drv_active: 0x%08x, "
3089            "dev_state: 0x%08x, active_mask: 0x%08x\n",
3090            drv_state, drv_active, dev_state, active_mask);
3091
3092        ql_log(ql_log_info, vha, 0x00b6,
3093            "Device state is 0x%x = %s.\n",
3094            dev_state,
3095            dev_state < MAX_STATES ? qdev_state(dev_state) : "Unknown");
3096
3097        /* Force to DEV_COLD unless someone else is starting a reset */
3098        if (dev_state != QLA8XXX_DEV_INITIALIZING &&
3099            dev_state != QLA8XXX_DEV_COLD) {
3100                ql_log(ql_log_info, vha, 0x00b7,
3101                    "HW State: COLD/RE-INIT.\n");
3102                qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_COLD);
3103                qla82xx_set_rst_ready(ha);
3104                if (ql2xmdenable) {
3105                        if (qla82xx_md_collect(vha))
3106                                ql_log(ql_log_warn, vha, 0xb02c,
3107                                    "Minidump not collected.\n");
3108                } else
3109                        ql_log(ql_log_warn, vha, 0xb04f,
3110                            "Minidump disabled.\n");
3111        }
3112}
3113
3114int
3115qla82xx_check_md_needed(scsi_qla_host_t *vha)
3116{
3117        struct qla_hw_data *ha = vha->hw;
3118        uint16_t fw_major_version, fw_minor_version, fw_subminor_version;
3119        int rval = QLA_SUCCESS;
3120
3121        fw_major_version = ha->fw_major_version;
3122        fw_minor_version = ha->fw_minor_version;
3123        fw_subminor_version = ha->fw_subminor_version;
3124
3125        rval = qla2x00_get_fw_version(vha);
3126        if (rval != QLA_SUCCESS)
3127                return rval;
3128
3129        if (ql2xmdenable) {
3130                if (!ha->fw_dumped) {
3131                        if (fw_major_version != ha->fw_major_version ||
3132                            fw_minor_version != ha->fw_minor_version ||
3133                            fw_subminor_version != ha->fw_subminor_version) {
3134                                ql_dbg(ql_dbg_p3p, vha, 0xb02d,
3135                                    "Firmware version differs "
3136                                    "Previous version: %d:%d:%d - "
3137                                    "New version: %d:%d:%d\n",
3138                                    fw_major_version, fw_minor_version,
3139                                    fw_subminor_version,
3140                                    ha->fw_major_version,
3141                                    ha->fw_minor_version,
3142                                    ha->fw_subminor_version);
3143                                /* Release MiniDump resources */
3144                                qla82xx_md_free(vha);
3145                                /* ALlocate MiniDump resources */
3146                                qla82xx_md_prep(vha);
3147                        }
3148                } else
3149                        ql_log(ql_log_info, vha, 0xb02e,
3150                            "Firmware dump available to retrieve\n");
3151        }
3152        return rval;
3153}
3154
3155
3156static int
3157qla82xx_check_fw_alive(scsi_qla_host_t *vha)
3158{
3159        uint32_t fw_heartbeat_counter;
3160        int status = 0;
3161
3162        fw_heartbeat_counter = qla82xx_rd_32(vha->hw,
3163                QLA82XX_PEG_ALIVE_COUNTER);
3164        /* all 0xff, assume AER/EEH in progress, ignore */
3165        if (fw_heartbeat_counter == 0xffffffff) {
3166                ql_dbg(ql_dbg_timer, vha, 0x6003,
3167                    "FW heartbeat counter is 0xffffffff, "
3168                    "returning status=%d.\n", status);
3169                return status;
3170        }
3171        if (vha->fw_heartbeat_counter == fw_heartbeat_counter) {
3172                vha->seconds_since_last_heartbeat++;
3173                /* FW not alive after 2 seconds */
3174                if (vha->seconds_since_last_heartbeat == 2) {
3175                        vha->seconds_since_last_heartbeat = 0;
3176                        status = 1;
3177                }
3178        } else
3179                vha->seconds_since_last_heartbeat = 0;
3180        vha->fw_heartbeat_counter = fw_heartbeat_counter;
3181        if (status)
3182                ql_dbg(ql_dbg_timer, vha, 0x6004,
3183                    "Returning status=%d.\n", status);
3184        return status;
3185}
3186
3187/*
3188 * qla82xx_device_state_handler
3189 *      Main state handler
3190 *
3191 * Note:
3192 *      IDC lock must be held upon entry
3193 *
3194 * Return:
3195 *    Success : 0
3196 *    Failed  : 1
3197 */
3198int
3199qla82xx_device_state_handler(scsi_qla_host_t *vha)
3200{
3201        uint32_t dev_state;
3202        uint32_t old_dev_state;
3203        int rval = QLA_SUCCESS;
3204        unsigned long dev_init_timeout;
3205        struct qla_hw_data *ha = vha->hw;
3206        int loopcount = 0;
3207
3208        qla82xx_idc_lock(ha);
3209        if (!vha->flags.init_done) {
3210                qla82xx_set_drv_active(vha);
3211                qla82xx_set_idc_version(vha);
3212        }
3213
3214        dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3215        old_dev_state = dev_state;
3216        ql_log(ql_log_info, vha, 0x009b,
3217            "Device state is 0x%x = %s.\n",
3218            dev_state,
3219            dev_state < MAX_STATES ? qdev_state(dev_state) : "Unknown");
3220
3221        /* wait for 30 seconds for device to go ready */
3222        dev_init_timeout = jiffies + (ha->fcoe_dev_init_timeout * HZ);
3223
3224        while (1) {
3225
3226                if (time_after_eq(jiffies, dev_init_timeout)) {
3227                        ql_log(ql_log_fatal, vha, 0x009c,
3228                            "Device init failed.\n");
3229                        rval = QLA_FUNCTION_FAILED;
3230                        break;
3231                }
3232                dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3233                if (old_dev_state != dev_state) {
3234                        loopcount = 0;
3235                        old_dev_state = dev_state;
3236                }
3237                if (loopcount < 5) {
3238                        ql_log(ql_log_info, vha, 0x009d,
3239                            "Device state is 0x%x = %s.\n",
3240                            dev_state,
3241                            dev_state < MAX_STATES ? qdev_state(dev_state) :
3242                            "Unknown");
3243                }
3244
3245                switch (dev_state) {
3246                case QLA8XXX_DEV_READY:
3247                        ha->flags.nic_core_reset_owner = 0;
3248                        goto rel_lock;
3249                case QLA8XXX_DEV_COLD:
3250                        rval = qla82xx_device_bootstrap(vha);
3251                        break;
3252                case QLA8XXX_DEV_INITIALIZING:
3253                        qla82xx_idc_unlock(ha);
3254                        msleep(1000);
3255                        qla82xx_idc_lock(ha);
3256                        break;
3257                case QLA8XXX_DEV_NEED_RESET:
3258                        if (!ql2xdontresethba)
3259                                qla82xx_need_reset_handler(vha);
3260                        else {
3261                                qla82xx_idc_unlock(ha);
3262                                msleep(1000);
3263                                qla82xx_idc_lock(ha);
3264                        }
3265                        dev_init_timeout = jiffies +
3266                            (ha->fcoe_dev_init_timeout * HZ);
3267                        break;
3268                case QLA8XXX_DEV_NEED_QUIESCENT:
3269                        qla82xx_need_qsnt_handler(vha);
3270                        /* Reset timeout value after quiescence handler */
3271                        dev_init_timeout = jiffies + (ha->fcoe_dev_init_timeout\
3272                                                         * HZ);
3273                        break;
3274                case QLA8XXX_DEV_QUIESCENT:
3275                        /* Owner will exit and other will wait for the state
3276                         * to get changed
3277                         */
3278                        if (ha->flags.quiesce_owner)
3279                                goto rel_lock;
3280
3281                        qla82xx_idc_unlock(ha);
3282                        msleep(1000);
3283                        qla82xx_idc_lock(ha);
3284
3285                        /* Reset timeout value after quiescence handler */
3286                        dev_init_timeout = jiffies + (ha->fcoe_dev_init_timeout\
3287                                                         * HZ);
3288                        break;
3289                case QLA8XXX_DEV_FAILED:
3290                        qla8xxx_dev_failed_handler(vha);
3291                        rval = QLA_FUNCTION_FAILED;
3292                        goto exit;
3293                default:
3294                        qla82xx_idc_unlock(ha);
3295                        msleep(1000);
3296                        qla82xx_idc_lock(ha);
3297                }
3298                loopcount++;
3299        }
3300rel_lock:
3301        qla82xx_idc_unlock(ha);
3302exit:
3303        return rval;
3304}
3305
3306static int qla82xx_check_temp(scsi_qla_host_t *vha)
3307{
3308        uint32_t temp, temp_state, temp_val;
3309        struct qla_hw_data *ha = vha->hw;
3310
3311        temp = qla82xx_rd_32(ha, CRB_TEMP_STATE);
3312        temp_state = qla82xx_get_temp_state(temp);
3313        temp_val = qla82xx_get_temp_val(temp);
3314
3315        if (temp_state == QLA82XX_TEMP_PANIC) {
3316                ql_log(ql_log_warn, vha, 0x600e,
3317                    "Device temperature %d degrees C exceeds "
3318                    " maximum allowed. Hardware has been shut down.\n",
3319                    temp_val);
3320                return 1;
3321        } else if (temp_state == QLA82XX_TEMP_WARN) {
3322                ql_log(ql_log_warn, vha, 0x600f,
3323                    "Device temperature %d degrees C exceeds "
3324                    "operating range. Immediate action needed.\n",
3325                    temp_val);
3326        }
3327        return 0;
3328}
3329
3330int qla82xx_read_temperature(scsi_qla_host_t *vha)
3331{
3332        uint32_t temp;
3333
3334        temp = qla82xx_rd_32(vha->hw, CRB_TEMP_STATE);
3335        return qla82xx_get_temp_val(temp);
3336}
3337
3338void qla82xx_clear_pending_mbx(scsi_qla_host_t *vha)
3339{
3340        struct qla_hw_data *ha = vha->hw;
3341
3342        if (ha->flags.mbox_busy) {
3343                ha->flags.mbox_int = 1;
3344                ha->flags.mbox_busy = 0;
3345                ql_log(ql_log_warn, vha, 0x6010,
3346                    "Doing premature completion of mbx command.\n");
3347                if (test_and_clear_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags))
3348                        complete(&ha->mbx_intr_comp);
3349        }
3350}
3351
3352void qla82xx_watchdog(scsi_qla_host_t *vha)
3353{
3354        uint32_t dev_state, halt_status;
3355        struct qla_hw_data *ha = vha->hw;
3356
3357        /* don't poll if reset is going on */
3358        if (!ha->flags.nic_core_reset_hdlr_active) {
3359                dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3360                if (qla82xx_check_temp(vha)) {
3361                        set_bit(ISP_UNRECOVERABLE, &vha->dpc_flags);
3362                        ha->flags.isp82xx_fw_hung = 1;
3363                        qla82xx_clear_pending_mbx(vha);
3364                } else if (dev_state == QLA8XXX_DEV_NEED_RESET &&
3365                    !test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags)) {
3366                        ql_log(ql_log_warn, vha, 0x6001,
3367                            "Adapter reset needed.\n");
3368                        set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3369                } else if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT &&
3370                        !test_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags)) {
3371                        ql_log(ql_log_warn, vha, 0x6002,
3372                            "Quiescent needed.\n");
3373                        set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
3374                } else if (dev_state == QLA8XXX_DEV_FAILED &&
3375                        !test_bit(ISP_UNRECOVERABLE, &vha->dpc_flags) &&
3376                        vha->flags.online == 1) {
3377                        ql_log(ql_log_warn, vha, 0xb055,
3378                            "Adapter state is failed. Offlining.\n");
3379                        set_bit(ISP_UNRECOVERABLE, &vha->dpc_flags);
3380                        ha->flags.isp82xx_fw_hung = 1;
3381                        qla82xx_clear_pending_mbx(vha);
3382                } else {
3383                        if (qla82xx_check_fw_alive(vha)) {
3384                                ql_dbg(ql_dbg_timer, vha, 0x6011,
3385                                    "disabling pause transmit on port 0 & 1.\n");
3386                                qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
3387                                    CRB_NIU_XG_PAUSE_CTL_P0|CRB_NIU_XG_PAUSE_CTL_P1);
3388                                halt_status = qla82xx_rd_32(ha,
3389                                    QLA82XX_PEG_HALT_STATUS1);
3390                                ql_log(ql_log_info, vha, 0x6005,
3391                                    "dumping hw/fw registers:.\n "
3392                                    " PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,.\n "
3393                                    " PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,.\n "
3394                                    " PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,.\n "
3395                                    " PEG_NET_4_PC: 0x%x.\n", halt_status,
3396                                    qla82xx_rd_32(ha, QLA82XX_PEG_HALT_STATUS2),
3397                                    qla82xx_rd_32(ha,
3398                                            QLA82XX_CRB_PEG_NET_0 + 0x3c),
3399                                    qla82xx_rd_32(ha,
3400                                            QLA82XX_CRB_PEG_NET_1 + 0x3c),
3401                                    qla82xx_rd_32(ha,
3402                                            QLA82XX_CRB_PEG_NET_2 + 0x3c),
3403                                    qla82xx_rd_32(ha,
3404                                            QLA82XX_CRB_PEG_NET_3 + 0x3c),
3405                                    qla82xx_rd_32(ha,
3406                                            QLA82XX_CRB_PEG_NET_4 + 0x3c));
3407                                if (((halt_status & 0x1fffff00) >> 8) == 0x67)
3408                                        ql_log(ql_log_warn, vha, 0xb052,
3409                                            "Firmware aborted with "
3410                                            "error code 0x00006700. Device is "
3411                                            "being reset.\n");
3412                                if (halt_status & HALT_STATUS_UNRECOVERABLE) {
3413                                        set_bit(ISP_UNRECOVERABLE,
3414                                            &vha->dpc_flags);
3415                                } else {
3416                                        ql_log(ql_log_info, vha, 0x6006,
3417                                            "Detect abort  needed.\n");
3418                                        set_bit(ISP_ABORT_NEEDED,
3419                                            &vha->dpc_flags);
3420                                }
3421                                ha->flags.isp82xx_fw_hung = 1;
3422                                ql_log(ql_log_warn, vha, 0x6007, "Firmware hung.\n");
3423                                qla82xx_clear_pending_mbx(vha);
3424                        }
3425                }
3426        }
3427}
3428
3429int qla82xx_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
3430{
3431        int rval = -1;
3432        struct qla_hw_data *ha = vha->hw;
3433
3434        if (IS_QLA82XX(ha))
3435                rval = qla82xx_device_state_handler(vha);
3436        else if (IS_QLA8044(ha)) {
3437                qla8044_idc_lock(ha);
3438                /* Decide the reset ownership */
3439                qla83xx_reset_ownership(vha);
3440                qla8044_idc_unlock(ha);
3441                rval = qla8044_device_state_handler(vha);
3442        }
3443        return rval;
3444}
3445
3446void
3447qla82xx_set_reset_owner(scsi_qla_host_t *vha)
3448{
3449        struct qla_hw_data *ha = vha->hw;
3450        uint32_t dev_state = 0;
3451
3452        if (IS_QLA82XX(ha))
3453                dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3454        else if (IS_QLA8044(ha))
3455                dev_state = qla8044_rd_direct(vha, QLA8044_CRB_DEV_STATE_INDEX);
3456
3457        if (dev_state == QLA8XXX_DEV_READY) {
3458                ql_log(ql_log_info, vha, 0xb02f,
3459                    "HW State: NEED RESET\n");
3460                if (IS_QLA82XX(ha)) {
3461                        qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3462                            QLA8XXX_DEV_NEED_RESET);
3463                        ha->flags.nic_core_reset_owner = 1;
3464                        ql_dbg(ql_dbg_p3p, vha, 0xb030,
3465                            "reset_owner is 0x%x\n", ha->portnum);
3466                } else if (IS_QLA8044(ha))
3467                        qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX,
3468                            QLA8XXX_DEV_NEED_RESET);
3469        } else
3470                ql_log(ql_log_info, vha, 0xb031,
3471                    "Device state is 0x%x = %s.\n",
3472                    dev_state,
3473                    dev_state < MAX_STATES ? qdev_state(dev_state) : "Unknown");
3474}
3475
3476/*
3477 *  qla82xx_abort_isp
3478 *      Resets ISP and aborts all outstanding commands.
3479 *
3480 * Input:
3481 *      ha           = adapter block pointer.
3482 *
3483 * Returns:
3484 *      0 = success
3485 */
3486int
3487qla82xx_abort_isp(scsi_qla_host_t *vha)
3488{
3489        int rval = -1;
3490        struct qla_hw_data *ha = vha->hw;
3491
3492        if (vha->device_flags & DFLG_DEV_FAILED) {
3493                ql_log(ql_log_warn, vha, 0x8024,
3494                    "Device in failed state, exiting.\n");
3495                return QLA_SUCCESS;
3496        }
3497        ha->flags.nic_core_reset_hdlr_active = 1;
3498
3499        qla82xx_idc_lock(ha);
3500        qla82xx_set_reset_owner(vha);
3501        qla82xx_idc_unlock(ha);
3502
3503        if (IS_QLA82XX(ha))
3504                rval = qla82xx_device_state_handler(vha);
3505        else if (IS_QLA8044(ha)) {
3506                qla8044_idc_lock(ha);
3507                /* Decide the reset ownership */
3508                qla83xx_reset_ownership(vha);
3509                qla8044_idc_unlock(ha);
3510                rval = qla8044_device_state_handler(vha);
3511        }
3512
3513        qla82xx_idc_lock(ha);
3514        qla82xx_clear_rst_ready(ha);
3515        qla82xx_idc_unlock(ha);
3516
3517        if (rval == QLA_SUCCESS) {
3518                ha->flags.isp82xx_fw_hung = 0;
3519                ha->flags.nic_core_reset_hdlr_active = 0;
3520                qla82xx_restart_isp(vha);
3521        }
3522
3523        if (rval) {
3524                vha->flags.online = 1;
3525                if (test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
3526                        if (ha->isp_abort_cnt == 0) {
3527                                ql_log(ql_log_warn, vha, 0x8027,
3528                                    "ISP error recover failed - board "
3529                                    "disabled.\n");
3530                                /*
3531                                 * The next call disables the board
3532                                 * completely.
3533                                 */
3534                                ha->isp_ops->reset_adapter(vha);
3535                                vha->flags.online = 0;
3536                                clear_bit(ISP_ABORT_RETRY,
3537                                    &vha->dpc_flags);
3538                                rval = QLA_SUCCESS;
3539                        } else { /* schedule another ISP abort */
3540                                ha->isp_abort_cnt--;
3541                                ql_log(ql_log_warn, vha, 0x8036,
3542                                    "ISP abort - retry remaining %d.\n",
3543                                    ha->isp_abort_cnt);
3544                                rval = QLA_FUNCTION_FAILED;
3545                        }
3546                } else {
3547                        ha->isp_abort_cnt = MAX_RETRIES_OF_ISP_ABORT;
3548                        ql_dbg(ql_dbg_taskm, vha, 0x8029,
3549                            "ISP error recovery - retrying (%d) more times.\n",
3550                            ha->isp_abort_cnt);
3551                        set_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
3552                        rval = QLA_FUNCTION_FAILED;
3553                }
3554        }
3555        return rval;
3556}
3557
3558/*
3559 *  qla82xx_fcoe_ctx_reset
3560 *      Perform a quick reset and aborts all outstanding commands.
3561 *      This will only perform an FCoE context reset and avoids a full blown
3562 *      chip reset.
3563 *
3564 * Input:
3565 *      ha = adapter block pointer.
3566 *      is_reset_path = flag for identifying the reset path.
3567 *
3568 * Returns:
3569 *      0 = success
3570 */
3571int qla82xx_fcoe_ctx_reset(scsi_qla_host_t *vha)
3572{
3573        int rval = QLA_FUNCTION_FAILED;
3574
3575        if (vha->flags.online) {
3576                /* Abort all outstanding commands, so as to be requeued later */
3577                qla2x00_abort_isp_cleanup(vha);
3578        }
3579
3580        /* Stop currently executing firmware.
3581         * This will destroy existing FCoE context at the F/W end.
3582         */
3583        qla2x00_try_to_stop_firmware(vha);
3584
3585        /* Restart. Creates a new FCoE context on INIT_FIRMWARE. */
3586        rval = qla82xx_restart_isp(vha);
3587
3588        return rval;
3589}
3590
3591/*
3592 * qla2x00_wait_for_fcoe_ctx_reset
3593 *    Wait till the FCoE context is reset.
3594 *
3595 * Note:
3596 *    Does context switching here.
3597 *    Release SPIN_LOCK (if any) before calling this routine.
3598 *
3599 * Return:
3600 *    Success (fcoe_ctx reset is done) : 0
3601 *    Failed  (fcoe_ctx reset not completed within max loop timout ) : 1
3602 */
3603int qla2x00_wait_for_fcoe_ctx_reset(scsi_qla_host_t *vha)
3604{
3605        int status = QLA_FUNCTION_FAILED;
3606        unsigned long wait_reset;
3607
3608        wait_reset = jiffies + (MAX_LOOP_TIMEOUT * HZ);
3609        while ((test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) ||
3610            test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
3611            && time_before(jiffies, wait_reset)) {
3612
3613                set_current_state(TASK_UNINTERRUPTIBLE);
3614                schedule_timeout(HZ);
3615
3616                if (!test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) &&
3617                    !test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) {
3618                        status = QLA_SUCCESS;
3619                        break;
3620                }
3621        }
3622        ql_dbg(ql_dbg_p3p, vha, 0xb027,
3623               "%s: status=%d.\n", __func__, status);
3624
3625        return status;
3626}
3627
3628void
3629qla82xx_chip_reset_cleanup(scsi_qla_host_t *vha)
3630{
3631        int i, fw_state = 0;
3632        unsigned long flags;
3633        struct qla_hw_data *ha = vha->hw;
3634
3635        /* Check if 82XX firmware is alive or not
3636         * We may have arrived here from NEED_RESET
3637         * detection only
3638         */
3639        if (!ha->flags.isp82xx_fw_hung) {
3640                for (i = 0; i < 2; i++) {
3641                        msleep(1000);
3642                        if (IS_QLA82XX(ha))
3643                                fw_state = qla82xx_check_fw_alive(vha);
3644                        else if (IS_QLA8044(ha))
3645                                fw_state = qla8044_check_fw_alive(vha);
3646                        if (fw_state) {
3647                                ha->flags.isp82xx_fw_hung = 1;
3648                                qla82xx_clear_pending_mbx(vha);
3649                                break;
3650                        }
3651                }
3652        }
3653        ql_dbg(ql_dbg_init, vha, 0x00b0,
3654            "Entered %s fw_hung=%d.\n",
3655            __func__, ha->flags.isp82xx_fw_hung);
3656
3657        /* Abort all commands gracefully if fw NOT hung */
3658        if (!ha->flags.isp82xx_fw_hung) {
3659                int cnt, que;
3660                srb_t *sp;
3661                struct req_que *req;
3662
3663                spin_lock_irqsave(&ha->hardware_lock, flags);
3664                for (que = 0; que < ha->max_req_queues; que++) {
3665                        req = ha->req_q_map[que];
3666                        if (!req)
3667                                continue;
3668                        for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++) {
3669                                sp = req->outstanding_cmds[cnt];
3670                                if (sp) {
3671                                        if (!sp->u.scmd.ctx ||
3672                                            (sp->flags & SRB_FCP_CMND_DMA_VALID)) {
3673                                                spin_unlock_irqrestore(
3674                                                    &ha->hardware_lock, flags);
3675                                                if (ha->isp_ops->abort_command(sp)) {
3676                                                        ql_log(ql_log_info, vha,
3677                                                            0x00b1,
3678                                                            "mbx abort failed.\n");
3679                                                } else {
3680                                                        ql_log(ql_log_info, vha,
3681                                                            0x00b2,
3682                                                            "mbx abort success.\n");
3683                                                }
3684                                                spin_lock_irqsave(&ha->hardware_lock, flags);
3685                                        }
3686                                }
3687                        }
3688                }
3689                spin_unlock_irqrestore(&ha->hardware_lock, flags);
3690
3691                /* Wait for pending cmds (physical and virtual) to complete */
3692                if (!qla2x00_eh_wait_for_pending_commands(vha, 0, 0,
3693                    WAIT_HOST) == QLA_SUCCESS) {
3694                        ql_dbg(ql_dbg_init, vha, 0x00b3,
3695                            "Done wait for "
3696                            "pending commands.\n");
3697                }
3698        }
3699}
3700
3701/* Minidump related functions */
3702static int
3703qla82xx_minidump_process_control(scsi_qla_host_t *vha,
3704        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3705{
3706        struct qla_hw_data *ha = vha->hw;
3707        struct qla82xx_md_entry_crb *crb_entry;
3708        uint32_t read_value, opcode, poll_time;
3709        uint32_t addr, index, crb_addr;
3710        unsigned long wtime;
3711        struct qla82xx_md_template_hdr *tmplt_hdr;
3712        uint32_t rval = QLA_SUCCESS;
3713        int i;
3714
3715        tmplt_hdr = (struct qla82xx_md_template_hdr *)ha->md_tmplt_hdr;
3716        crb_entry = (struct qla82xx_md_entry_crb *)entry_hdr;
3717        crb_addr = crb_entry->addr;
3718
3719        for (i = 0; i < crb_entry->op_count; i++) {
3720                opcode = crb_entry->crb_ctrl.opcode;
3721                if (opcode & QLA82XX_DBG_OPCODE_WR) {
3722                        qla82xx_md_rw_32(ha, crb_addr,
3723                            crb_entry->value_1, 1);
3724                        opcode &= ~QLA82XX_DBG_OPCODE_WR;
3725                }
3726
3727                if (opcode & QLA82XX_DBG_OPCODE_RW) {
3728                        read_value = qla82xx_md_rw_32(ha, crb_addr, 0, 0);
3729                        qla82xx_md_rw_32(ha, crb_addr, read_value, 1);
3730                        opcode &= ~QLA82XX_DBG_OPCODE_RW;
3731                }
3732
3733                if (opcode & QLA82XX_DBG_OPCODE_AND) {
3734                        read_value = qla82xx_md_rw_32(ha, crb_addr, 0, 0);
3735                        read_value &= crb_entry->value_2;
3736                        opcode &= ~QLA82XX_DBG_OPCODE_AND;
3737                        if (opcode & QLA82XX_DBG_OPCODE_OR) {
3738                                read_value |= crb_entry->value_3;
3739                                opcode &= ~QLA82XX_DBG_OPCODE_OR;
3740                        }
3741                        qla82xx_md_rw_32(ha, crb_addr, read_value, 1);
3742                }
3743
3744                if (opcode & QLA82XX_DBG_OPCODE_OR) {
3745                        read_value = qla82xx_md_rw_32(ha, crb_addr, 0, 0);
3746                        read_value |= crb_entry->value_3;
3747                        qla82xx_md_rw_32(ha, crb_addr, read_value, 1);
3748                        opcode &= ~QLA82XX_DBG_OPCODE_OR;
3749                }
3750
3751                if (opcode & QLA82XX_DBG_OPCODE_POLL) {
3752                        poll_time = crb_entry->crb_strd.poll_timeout;
3753                        wtime = jiffies + poll_time;
3754                        read_value = qla82xx_md_rw_32(ha, crb_addr, 0, 0);
3755
3756                        do {
3757                                if ((read_value & crb_entry->value_2)
3758                                    == crb_entry->value_1)
3759                                        break;
3760                                else if (time_after_eq(jiffies, wtime)) {
3761                                        /* capturing dump failed */
3762                                        rval = QLA_FUNCTION_FAILED;
3763                                        break;
3764                                } else
3765                                        read_value = qla82xx_md_rw_32(ha,
3766                                            crb_addr, 0, 0);
3767                        } while (1);
3768                        opcode &= ~QLA82XX_DBG_OPCODE_POLL;
3769                }
3770
3771                if (opcode & QLA82XX_DBG_OPCODE_RDSTATE) {
3772                        if (crb_entry->crb_strd.state_index_a) {
3773                                index = crb_entry->crb_strd.state_index_a;
3774                                addr = tmplt_hdr->saved_state_array[index];
3775                        } else
3776                                addr = crb_addr;
3777
3778                        read_value = qla82xx_md_rw_32(ha, addr, 0, 0);
3779                        index = crb_entry->crb_ctrl.state_index_v;
3780                        tmplt_hdr->saved_state_array[index] = read_value;
3781                        opcode &= ~QLA82XX_DBG_OPCODE_RDSTATE;
3782                }
3783
3784                if (opcode & QLA82XX_DBG_OPCODE_WRSTATE) {
3785                        if (crb_entry->crb_strd.state_index_a) {
3786                                index = crb_entry->crb_strd.state_index_a;
3787                                addr = tmplt_hdr->saved_state_array[index];
3788                        } else
3789                                addr = crb_addr;
3790
3791                        if (crb_entry->crb_ctrl.state_index_v) {
3792                                index = crb_entry->crb_ctrl.state_index_v;
3793                                read_value =
3794                                    tmplt_hdr->saved_state_array[index];
3795                        } else
3796                                read_value = crb_entry->value_1;
3797
3798                        qla82xx_md_rw_32(ha, addr, read_value, 1);
3799                        opcode &= ~QLA82XX_DBG_OPCODE_WRSTATE;
3800                }
3801
3802                if (opcode & QLA82XX_DBG_OPCODE_MDSTATE) {
3803                        index = crb_entry->crb_ctrl.state_index_v;
3804                        read_value = tmplt_hdr->saved_state_array[index];
3805                        read_value <<= crb_entry->crb_ctrl.shl;
3806                        read_value >>= crb_entry->crb_ctrl.shr;
3807                        if (crb_entry->value_2)
3808                                read_value &= crb_entry->value_2;
3809                        read_value |= crb_entry->value_3;
3810                        read_value += crb_entry->value_1;
3811                        tmplt_hdr->saved_state_array[index] = read_value;
3812                        opcode &= ~QLA82XX_DBG_OPCODE_MDSTATE;
3813                }
3814                crb_addr += crb_entry->crb_strd.addr_stride;
3815        }
3816        return rval;
3817}
3818
3819static void
3820qla82xx_minidump_process_rdocm(scsi_qla_host_t *vha,
3821        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3822{
3823        struct qla_hw_data *ha = vha->hw;
3824        uint32_t r_addr, r_stride, loop_cnt, i, r_value;
3825        struct qla82xx_md_entry_rdocm *ocm_hdr;
3826        uint32_t *data_ptr = *d_ptr;
3827
3828        ocm_hdr = (struct qla82xx_md_entry_rdocm *)entry_hdr;
3829        r_addr = ocm_hdr->read_addr;
3830        r_stride = ocm_hdr->read_addr_stride;
3831        loop_cnt = ocm_hdr->op_count;
3832
3833        for (i = 0; i < loop_cnt; i++) {
3834                r_value = RD_REG_DWORD((void __iomem *)
3835                    (r_addr + ha->nx_pcibase));
3836                *data_ptr++ = cpu_to_le32(r_value);
3837                r_addr += r_stride;
3838        }
3839        *d_ptr = data_ptr;
3840}
3841
3842static void
3843qla82xx_minidump_process_rdmux(scsi_qla_host_t *vha,
3844        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3845{
3846        struct qla_hw_data *ha = vha->hw;
3847        uint32_t r_addr, s_stride, s_addr, s_value, loop_cnt, i, r_value;
3848        struct qla82xx_md_entry_mux *mux_hdr;
3849        uint32_t *data_ptr = *d_ptr;
3850
3851        mux_hdr = (struct qla82xx_md_entry_mux *)entry_hdr;
3852        r_addr = mux_hdr->read_addr;
3853        s_addr = mux_hdr->select_addr;
3854        s_stride = mux_hdr->select_value_stride;
3855        s_value = mux_hdr->select_value;
3856        loop_cnt = mux_hdr->op_count;
3857
3858        for (i = 0; i < loop_cnt; i++) {
3859                qla82xx_md_rw_32(ha, s_addr, s_value, 1);
3860                r_value = qla82xx_md_rw_32(ha, r_addr, 0, 0);
3861                *data_ptr++ = cpu_to_le32(s_value);
3862                *data_ptr++ = cpu_to_le32(r_value);
3863                s_value += s_stride;
3864        }
3865        *d_ptr = data_ptr;
3866}
3867
3868static void
3869qla82xx_minidump_process_rdcrb(scsi_qla_host_t *vha,
3870        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3871{
3872        struct qla_hw_data *ha = vha->hw;
3873        uint32_t r_addr, r_stride, loop_cnt, i, r_value;
3874        struct qla82xx_md_entry_crb *crb_hdr;
3875        uint32_t *data_ptr = *d_ptr;
3876
3877        crb_hdr = (struct qla82xx_md_entry_crb *)entry_hdr;
3878        r_addr = crb_hdr->addr;
3879        r_stride = crb_hdr->crb_strd.addr_stride;
3880        loop_cnt = crb_hdr->op_count;
3881
3882        for (i = 0; i < loop_cnt; i++) {
3883                r_value = qla82xx_md_rw_32(ha, r_addr, 0, 0);
3884                *data_ptr++ = cpu_to_le32(r_addr);
3885                *data_ptr++ = cpu_to_le32(r_value);
3886                r_addr += r_stride;
3887        }
3888        *d_ptr = data_ptr;
3889}
3890
3891static int
3892qla82xx_minidump_process_l2tag(scsi_qla_host_t *vha,
3893        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3894{
3895        struct qla_hw_data *ha = vha->hw;
3896        uint32_t addr, r_addr, c_addr, t_r_addr;
3897        uint32_t i, k, loop_count, t_value, r_cnt, r_value;
3898        unsigned long p_wait, w_time, p_mask;
3899        uint32_t c_value_w, c_value_r;
3900        struct qla82xx_md_entry_cache *cache_hdr;
3901        int rval = QLA_FUNCTION_FAILED;
3902        uint32_t *data_ptr = *d_ptr;
3903
3904        cache_hdr = (struct qla82xx_md_entry_cache *)entry_hdr;
3905        loop_count = cache_hdr->op_count;
3906        r_addr = cache_hdr->read_addr;
3907        c_addr = cache_hdr->control_addr;
3908        c_value_w = cache_hdr->cache_ctrl.write_value;
3909
3910        t_r_addr = cache_hdr->tag_reg_addr;
3911        t_value = cache_hdr->addr_ctrl.init_tag_value;
3912        r_cnt = cache_hdr->read_ctrl.read_addr_cnt;
3913        p_wait = cache_hdr->cache_ctrl.poll_wait;
3914        p_mask = cache_hdr->cache_ctrl.poll_mask;
3915
3916        for (i = 0; i < loop_count; i++) {
3917                qla82xx_md_rw_32(ha, t_r_addr, t_value, 1);
3918                if (c_value_w)
3919                        qla82xx_md_rw_32(ha, c_addr, c_value_w, 1);
3920
3921                if (p_mask) {
3922                        w_time = jiffies + p_wait;
3923                        do {
3924                                c_value_r = qla82xx_md_rw_32(ha, c_addr, 0, 0);
3925                                if ((c_value_r & p_mask) == 0)
3926                                        break;
3927                                else if (time_after_eq(jiffies, w_time)) {
3928                                        /* capturing dump failed */
3929                                        ql_dbg(ql_dbg_p3p, vha, 0xb032,
3930                                            "c_value_r: 0x%x, poll_mask: 0x%lx, "
3931                                            "w_time: 0x%lx\n",
3932                                            c_value_r, p_mask, w_time);
3933                                        return rval;
3934                                }
3935                        } while (1);
3936                }
3937
3938                addr = r_addr;
3939                for (k = 0; k < r_cnt; k++) {
3940                        r_value = qla82xx_md_rw_32(ha, addr, 0, 0);
3941                        *data_ptr++ = cpu_to_le32(r_value);
3942                        addr += cache_hdr->read_ctrl.read_addr_stride;
3943                }
3944                t_value += cache_hdr->addr_ctrl.tag_value_stride;
3945        }
3946        *d_ptr = data_ptr;
3947        return QLA_SUCCESS;
3948}
3949
3950static void
3951qla82xx_minidump_process_l1cache(scsi_qla_host_t *vha,
3952        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3953{
3954        struct qla_hw_data *ha = vha->hw;
3955        uint32_t addr, r_addr, c_addr, t_r_addr;
3956        uint32_t i, k, loop_count, t_value, r_cnt, r_value;
3957        uint32_t c_value_w;
3958        struct qla82xx_md_entry_cache *cache_hdr;
3959        uint32_t *data_ptr = *d_ptr;
3960
3961        cache_hdr = (struct qla82xx_md_entry_cache *)entry_hdr;
3962        loop_count = cache_hdr->op_count;
3963        r_addr = cache_hdr->read_addr;
3964        c_addr = cache_hdr->control_addr;
3965        c_value_w = cache_hdr->cache_ctrl.write_value;
3966
3967        t_r_addr = cache_hdr->tag_reg_addr;
3968        t_value = cache_hdr->addr_ctrl.init_tag_value;
3969        r_cnt = cache_hdr->read_ctrl.read_addr_cnt;
3970
3971        for (i = 0; i < loop_count; i++) {
3972                qla82xx_md_rw_32(ha, t_r_addr, t_value, 1);
3973                qla82xx_md_rw_32(ha, c_addr, c_value_w, 1);
3974                addr = r_addr;
3975                for (k = 0; k < r_cnt; k++) {
3976                        r_value = qla82xx_md_rw_32(ha, addr, 0, 0);
3977                        *data_ptr++ = cpu_to_le32(r_value);
3978                        addr += cache_hdr->read_ctrl.read_addr_stride;
3979                }
3980                t_value += cache_hdr->addr_ctrl.tag_value_stride;
3981        }
3982        *d_ptr = data_ptr;
3983}
3984
3985static void
3986qla82xx_minidump_process_queue(scsi_qla_host_t *vha,
3987        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3988{
3989        struct qla_hw_data *ha = vha->hw;
3990        uint32_t s_addr, r_addr;
3991        uint32_t r_stride, r_value, r_cnt, qid = 0;
3992        uint32_t i, k, loop_cnt;
3993        struct qla82xx_md_entry_queue *q_hdr;
3994        uint32_t *data_ptr = *d_ptr;
3995
3996        q_hdr = (struct qla82xx_md_entry_queue *)entry_hdr;
3997        s_addr = q_hdr->select_addr;
3998        r_cnt = q_hdr->rd_strd.read_addr_cnt;
3999        r_stride = q_hdr->rd_strd.read_addr_stride;
4000        loop_cnt = q_hdr->op_count;
4001
4002        for (i = 0; i < loop_cnt; i++) {
4003                qla82xx_md_rw_32(ha, s_addr, qid, 1);
4004                r_addr = q_hdr->read_addr;
4005                for (k = 0; k < r_cnt; k++) {
4006                        r_value = qla82xx_md_rw_32(ha, r_addr, 0, 0);
4007                        *data_ptr++ = cpu_to_le32(r_value);
4008                        r_addr += r_stride;
4009                }
4010                qid += q_hdr->q_strd.queue_id_stride;
4011        }
4012        *d_ptr = data_ptr;
4013}
4014
4015static void
4016qla82xx_minidump_process_rdrom(scsi_qla_host_t *vha,
4017        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
4018{
4019        struct qla_hw_data *ha = vha->hw;
4020        uint32_t r_addr, r_value;
4021        uint32_t i, loop_cnt;
4022        struct qla82xx_md_entry_rdrom *rom_hdr;
4023        uint32_t *data_ptr = *d_ptr;
4024
4025        rom_hdr = (struct qla82xx_md_entry_rdrom *)entry_hdr;
4026        r_addr = rom_hdr->read_addr;
4027        loop_cnt = rom_hdr->read_data_size/sizeof(uint32_t);
4028
4029        for (i = 0; i < loop_cnt; i++) {
4030                qla82xx_md_rw_32(ha, MD_DIRECT_ROM_WINDOW,
4031                    (r_addr & 0xFFFF0000), 1);
4032                r_value = qla82xx_md_rw_32(ha,
4033                    MD_DIRECT_ROM_READ_BASE +
4034                    (r_addr & 0x0000FFFF), 0, 0);
4035                *data_ptr++ = cpu_to_le32(r_value);
4036                r_addr += sizeof(uint32_t);
4037        }
4038        *d_ptr = data_ptr;
4039}
4040
4041static int
4042qla82xx_minidump_process_rdmem(scsi_qla_host_t *vha,
4043        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
4044{
4045        struct qla_hw_data *ha = vha->hw;
4046        uint32_t r_addr, r_value, r_data;
4047        uint32_t i, j, loop_cnt;
4048        struct qla82xx_md_entry_rdmem *m_hdr;
4049        unsigned long flags;
4050        int rval = QLA_FUNCTION_FAILED;
4051        uint32_t *data_ptr = *d_ptr;
4052
4053        m_hdr = (struct qla82xx_md_entry_rdmem *)entry_hdr;
4054        r_addr = m_hdr->read_addr;
4055        loop_cnt = m_hdr->read_data_size/16;
4056
4057        if (r_addr & 0xf) {
4058                ql_log(ql_log_warn, vha, 0xb033,
4059                    "Read addr 0x%x not 16 bytes aligned\n", r_addr);
4060                return rval;
4061        }
4062
4063        if (m_hdr->read_data_size % 16) {
4064                ql_log(ql_log_warn, vha, 0xb034,
4065                    "Read data[0x%x] not multiple of 16 bytes\n",
4066                    m_hdr->read_data_size);
4067                return rval;
4068        }
4069
4070        ql_dbg(ql_dbg_p3p, vha, 0xb035,
4071            "[%s]: rdmem_addr: 0x%x, read_data_size: 0x%x, loop_cnt: 0x%x\n",
4072            __func__, r_addr, m_hdr->read_data_size, loop_cnt);
4073
4074        write_lock_irqsave(&ha->hw_lock, flags);
4075        for (i = 0; i < loop_cnt; i++) {
4076                qla82xx_md_rw_32(ha, MD_MIU_TEST_AGT_ADDR_LO, r_addr, 1);
4077                r_value = 0;
4078                qla82xx_md_rw_32(ha, MD_MIU_TEST_AGT_ADDR_HI, r_value, 1);
4079                r_value = MIU_TA_CTL_ENABLE;
4080                qla82xx_md_rw_32(ha, MD_MIU_TEST_AGT_CTRL, r_value, 1);
4081                r_value = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE;
4082                qla82xx_md_rw_32(ha, MD_MIU_TEST_AGT_CTRL, r_value, 1);
4083
4084                for (j = 0; j < MAX_CTL_CHECK; j++) {
4085                        r_value = qla82xx_md_rw_32(ha,
4086                            MD_MIU_TEST_AGT_CTRL, 0, 0);
4087                        if ((r_value & MIU_TA_CTL_BUSY) == 0)
4088                                break;
4089                }
4090
4091                if (j >= MAX_CTL_CHECK) {
4092                        printk_ratelimited(KERN_ERR
4093                            "failed to read through agent\n");
4094                        write_unlock_irqrestore(&ha->hw_lock, flags);
4095                        return rval;
4096                }
4097
4098                for (j = 0; j < 4; j++) {
4099                        r_data = qla82xx_md_rw_32(ha,
4100                            MD_MIU_TEST_AGT_RDDATA[j], 0, 0);
4101                        *data_ptr++ = cpu_to_le32(r_data);
4102                }
4103                r_addr += 16;
4104        }
4105        write_unlock_irqrestore(&ha->hw_lock, flags);
4106        *d_ptr = data_ptr;
4107        return QLA_SUCCESS;
4108}
4109
4110int
4111qla82xx_validate_template_chksum(scsi_qla_host_t *vha)
4112{
4113        struct qla_hw_data *ha = vha->hw;
4114        uint64_t chksum = 0;
4115        uint32_t *d_ptr = (uint32_t *)ha->md_tmplt_hdr;
4116        int count = ha->md_template_size/sizeof(uint32_t);
4117
4118        while (count-- > 0)
4119                chksum += *d_ptr++;
4120        while (chksum >> 32)
4121                chksum = (chksum & 0xFFFFFFFF) + (chksum >> 32);
4122        return ~chksum;
4123}
4124
4125static void
4126qla82xx_mark_entry_skipped(scsi_qla_host_t *vha,
4127        qla82xx_md_entry_hdr_t *entry_hdr, int index)
4128{
4129        entry_hdr->d_ctrl.driver_flags |= QLA82XX_DBG_SKIPPED_FLAG;
4130        ql_dbg(ql_dbg_p3p, vha, 0xb036,
4131            "Skipping entry[%d]: "
4132            "ETYPE[0x%x]-ELEVEL[0x%x]\n",
4133            index, entry_hdr->entry_type,
4134            entry_hdr->d_ctrl.entry_capture_mask);
4135}
4136
4137int
4138qla82xx_md_collect(scsi_qla_host_t *vha)
4139{
4140        struct qla_hw_data *ha = vha->hw;
4141        int no_entry_hdr = 0;
4142        qla82xx_md_entry_hdr_t *entry_hdr;
4143        struct qla82xx_md_template_hdr *tmplt_hdr;
4144        uint32_t *data_ptr;
4145        uint32_t total_data_size = 0, f_capture_mask, data_collected = 0;
4146        int i = 0, rval = QLA_FUNCTION_FAILED;
4147
4148        tmplt_hdr = (struct qla82xx_md_template_hdr *)ha->md_tmplt_hdr;
4149        data_ptr = (uint32_t *)ha->md_dump;
4150
4151        if (ha->fw_dumped) {
4152                ql_log(ql_log_warn, vha, 0xb037,
4153                    "Firmware has been previously dumped (%p) "
4154                    "-- ignoring request.\n", ha->fw_dump);
4155                goto md_failed;
4156        }
4157
4158        ha->fw_dumped = 0;
4159
4160        if (!ha->md_tmplt_hdr || !ha->md_dump) {
4161                ql_log(ql_log_warn, vha, 0xb038,
4162                    "Memory not allocated for minidump capture\n");
4163                goto md_failed;
4164        }
4165
4166        if (ha->flags.isp82xx_no_md_cap) {
4167                ql_log(ql_log_warn, vha, 0xb054,
4168                    "Forced reset from application, "
4169                    "ignore minidump capture\n");
4170                ha->flags.isp82xx_no_md_cap = 0;
4171                goto md_failed;
4172        }
4173
4174        if (qla82xx_validate_template_chksum(vha)) {
4175                ql_log(ql_log_info, vha, 0xb039,
4176                    "Template checksum validation error\n");
4177                goto md_failed;
4178        }
4179
4180        no_entry_hdr = tmplt_hdr->num_of_entries;
4181        ql_dbg(ql_dbg_p3p, vha, 0xb03a,
4182            "No of entry headers in Template: 0x%x\n", no_entry_hdr);
4183
4184        ql_dbg(ql_dbg_p3p, vha, 0xb03b,
4185            "Capture Mask obtained: 0x%x\n", tmplt_hdr->capture_debug_level);
4186
4187        f_capture_mask = tmplt_hdr->capture_debug_level & 0xFF;
4188
4189        /* Validate whether required debug level is set */
4190        if ((f_capture_mask & 0x3) != 0x3) {
4191                ql_log(ql_log_warn, vha, 0xb03c,
4192                    "Minimum required capture mask[0x%x] level not set\n",
4193                    f_capture_mask);
4194                goto md_failed;
4195        }
4196        tmplt_hdr->driver_capture_mask = ql2xmdcapmask;
4197
4198        tmplt_hdr->driver_info[0] = vha->host_no;
4199        tmplt_hdr->driver_info[1] = (QLA_DRIVER_MAJOR_VER << 24) |
4200            (QLA_DRIVER_MINOR_VER << 16) | (QLA_DRIVER_PATCH_VER << 8) |
4201            QLA_DRIVER_BETA_VER;
4202
4203        total_data_size = ha->md_dump_size;
4204
4205        ql_dbg(ql_dbg_p3p, vha, 0xb03d,
4206            "Total minidump data_size 0x%x to be captured\n", total_data_size);
4207
4208        /* Check whether template obtained is valid */
4209        if (tmplt_hdr->entry_type != QLA82XX_TLHDR) {
4210                ql_log(ql_log_warn, vha, 0xb04e,
4211                    "Bad template header entry type: 0x%x obtained\n",
4212                    tmplt_hdr->entry_type);
4213                goto md_failed;
4214        }
4215
4216        entry_hdr = (qla82xx_md_entry_hdr_t *) \
4217            (((uint8_t *)ha->md_tmplt_hdr) + tmplt_hdr->first_entry_offset);
4218
4219        /* Walk through the entry headers */
4220        for (i = 0; i < no_entry_hdr; i++) {
4221
4222                if (data_collected > total_data_size) {
4223                        ql_log(ql_log_warn, vha, 0xb03e,
4224                            "More MiniDump data collected: [0x%x]\n",
4225                            data_collected);
4226                        goto md_failed;
4227                }
4228
4229                if (!(entry_hdr->d_ctrl.entry_capture_mask &
4230                    ql2xmdcapmask)) {
4231                        entry_hdr->d_ctrl.driver_flags |=
4232                            QLA82XX_DBG_SKIPPED_FLAG;
4233                        ql_dbg(ql_dbg_p3p, vha, 0xb03f,
4234                            "Skipping entry[%d]: "
4235                            "ETYPE[0x%x]-ELEVEL[0x%x]\n",
4236                            i, entry_hdr->entry_type,
4237                            entry_hdr->d_ctrl.entry_capture_mask);
4238                        goto skip_nxt_entry;
4239                }
4240
4241                ql_dbg(ql_dbg_p3p, vha, 0xb040,
4242                    "[%s]: data ptr[%d]: %p, entry_hdr: %p\n"
4243                    "entry_type: 0x%x, captrue_mask: 0x%x\n",
4244                    __func__, i, data_ptr, entry_hdr,
4245                    entry_hdr->entry_type,
4246                    entry_hdr->d_ctrl.entry_capture_mask);
4247
4248                ql_dbg(ql_dbg_p3p, vha, 0xb041,
4249                    "Data collected: [0x%x], Dump size left:[0x%x]\n",
4250                    data_collected, (ha->md_dump_size - data_collected));
4251
4252                /* Decode the entry type and take
4253                 * required action to capture debug data */
4254                switch (entry_hdr->entry_type) {
4255                case QLA82XX_RDEND:
4256                        qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4257                        break;
4258                case QLA82XX_CNTRL:
4259                        rval = qla82xx_minidump_process_control(vha,
4260                            entry_hdr, &data_ptr);
4261                        if (rval != QLA_SUCCESS) {
4262                                qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4263                                goto md_failed;
4264                        }
4265                        break;
4266                case QLA82XX_RDCRB:
4267                        qla82xx_minidump_process_rdcrb(vha,
4268                            entry_hdr, &data_ptr);
4269                        break;
4270                case QLA82XX_RDMEM:
4271                        rval = qla82xx_minidump_process_rdmem(vha,
4272                            entry_hdr, &data_ptr);
4273                        if (rval != QLA_SUCCESS) {
4274                                qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4275                                goto md_failed;
4276                        }
4277                        break;
4278                case QLA82XX_BOARD:
4279                case QLA82XX_RDROM:
4280                        qla82xx_minidump_process_rdrom(vha,
4281                            entry_hdr, &data_ptr);
4282                        break;
4283                case QLA82XX_L2DTG:
4284                case QLA82XX_L2ITG:
4285                case QLA82XX_L2DAT:
4286                case QLA82XX_L2INS:
4287                        rval = qla82xx_minidump_process_l2tag(vha,
4288                            entry_hdr, &data_ptr);
4289                        if (rval != QLA_SUCCESS) {
4290                                qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4291                                goto md_failed;
4292                        }
4293                        break;
4294                case QLA82XX_L1DAT:
4295                case QLA82XX_L1INS:
4296                        qla82xx_minidump_process_l1cache(vha,
4297                            entry_hdr, &data_ptr);
4298                        break;
4299                case QLA82XX_RDOCM:
4300                        qla82xx_minidump_process_rdocm(vha,
4301                            entry_hdr, &data_ptr);
4302                        break;
4303                case QLA82XX_RDMUX:
4304                        qla82xx_minidump_process_rdmux(vha,
4305                            entry_hdr, &data_ptr);
4306                        break;
4307                case QLA82XX_QUEUE:
4308                        qla82xx_minidump_process_queue(vha,
4309                            entry_hdr, &data_ptr);
4310                        break;
4311                case QLA82XX_RDNOP:
4312                default:
4313                        qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4314                        break;
4315                }
4316
4317                ql_dbg(ql_dbg_p3p, vha, 0xb042,
4318                    "[%s]: data ptr[%d]: %p\n", __func__, i, data_ptr);
4319
4320                data_collected = (uint8_t *)data_ptr -
4321                    (uint8_t *)ha->md_dump;
4322skip_nxt_entry:
4323                entry_hdr = (qla82xx_md_entry_hdr_t *) \
4324                    (((uint8_t *)entry_hdr) + entry_hdr->entry_size);
4325        }
4326
4327        if (data_collected != total_data_size) {
4328                ql_dbg(ql_dbg_p3p, vha, 0xb043,
4329                    "MiniDump data mismatch: Data collected: [0x%x],"
4330                    "total_data_size:[0x%x]\n",
4331                    data_collected, total_data_size);
4332                goto md_failed;
4333        }
4334
4335        ql_log(ql_log_info, vha, 0xb044,
4336            "Firmware dump saved to temp buffer (%ld/%p %ld/%p).\n",
4337            vha->host_no, ha->md_tmplt_hdr, vha->host_no, ha->md_dump);
4338        ha->fw_dumped = 1;
4339        qla2x00_post_uevent_work(vha, QLA_UEVENT_CODE_FW_DUMP);
4340
4341md_failed:
4342        return rval;
4343}
4344
4345int
4346qla82xx_md_alloc(scsi_qla_host_t *vha)
4347{
4348        struct qla_hw_data *ha = vha->hw;
4349        int i, k;
4350        struct qla82xx_md_template_hdr *tmplt_hdr;
4351
4352        tmplt_hdr = (struct qla82xx_md_template_hdr *)ha->md_tmplt_hdr;
4353
4354        if (ql2xmdcapmask < 0x3 || ql2xmdcapmask > 0x7F) {
4355                ql2xmdcapmask = tmplt_hdr->capture_debug_level & 0xFF;
4356                ql_log(ql_log_info, vha, 0xb045,
4357                    "Forcing driver capture mask to firmware default capture mask: 0x%x.\n",
4358                    ql2xmdcapmask);
4359        }
4360
4361        for (i = 0x2, k = 1; (i & QLA82XX_DEFAULT_CAP_MASK); i <<= 1, k++) {
4362                if (i & ql2xmdcapmask)
4363                        ha->md_dump_size += tmplt_hdr->capture_size_array[k];
4364        }
4365
4366        if (ha->md_dump) {
4367                ql_log(ql_log_warn, vha, 0xb046,
4368                    "Firmware dump previously allocated.\n");
4369                return 1;
4370        }
4371
4372        ha->md_dump = vmalloc(ha->md_dump_size);
4373        if (ha->md_dump == NULL) {
4374                ql_log(ql_log_warn, vha, 0xb047,
4375                    "Unable to allocate memory for Minidump size "
4376                    "(0x%x).\n", ha->md_dump_size);
4377                return 1;
4378        }
4379        return 0;
4380}
4381
4382void
4383qla82xx_md_free(scsi_qla_host_t *vha)
4384{
4385        struct qla_hw_data *ha = vha->hw;
4386
4387        /* Release the template header allocated */
4388        if (ha->md_tmplt_hdr) {
4389                ql_log(ql_log_info, vha, 0xb048,
4390                    "Free MiniDump template: %p, size (%d KB)\n",
4391                    ha->md_tmplt_hdr, ha->md_template_size / 1024);
4392                dma_free_coherent(&ha->pdev->dev, ha->md_template_size,
4393                    ha->md_tmplt_hdr, ha->md_tmplt_hdr_dma);
4394                ha->md_tmplt_hdr = NULL;
4395        }
4396
4397        /* Release the template data buffer allocated */
4398        if (ha->md_dump) {
4399                ql_log(ql_log_info, vha, 0xb049,
4400                    "Free MiniDump memory: %p, size (%d KB)\n",
4401                    ha->md_dump, ha->md_dump_size / 1024);
4402                vfree(ha->md_dump);
4403                ha->md_dump_size = 0;
4404                ha->md_dump = NULL;
4405        }
4406}
4407
4408void
4409qla82xx_md_prep(scsi_qla_host_t *vha)
4410{
4411        struct qla_hw_data *ha = vha->hw;
4412        int rval;
4413
4414        /* Get Minidump template size */
4415        rval = qla82xx_md_get_template_size(vha);
4416        if (rval == QLA_SUCCESS) {
4417                ql_log(ql_log_info, vha, 0xb04a,
4418                    "MiniDump Template size obtained (%d KB)\n",
4419                    ha->md_template_size / 1024);
4420
4421                /* Get Minidump template */
4422                if (IS_QLA8044(ha))
4423                        rval = qla8044_md_get_template(vha);
4424                else
4425                        rval = qla82xx_md_get_template(vha);
4426
4427                if (rval == QLA_SUCCESS) {
4428                        ql_dbg(ql_dbg_p3p, vha, 0xb04b,
4429                            "MiniDump Template obtained\n");
4430
4431                        /* Allocate memory for minidump */
4432                        rval = qla82xx_md_alloc(vha);
4433                        if (rval == QLA_SUCCESS)
4434                                ql_log(ql_log_info, vha, 0xb04c,
4435                                    "MiniDump memory allocated (%d KB)\n",
4436                                    ha->md_dump_size / 1024);
4437                        else {
4438                                ql_log(ql_log_info, vha, 0xb04d,
4439                                    "Free MiniDump template: %p, size: (%d KB)\n",
4440                                    ha->md_tmplt_hdr,
4441                                    ha->md_template_size / 1024);
4442                                dma_free_coherent(&ha->pdev->dev,
4443                                    ha->md_template_size,
4444                                    ha->md_tmplt_hdr, ha->md_tmplt_hdr_dma);
4445                                ha->md_tmplt_hdr = NULL;
4446                        }
4447
4448                }
4449        }
4450}
4451
4452int
4453qla82xx_beacon_on(struct scsi_qla_host *vha)
4454{
4455
4456        int rval;
4457        struct qla_hw_data *ha = vha->hw;
4458        qla82xx_idc_lock(ha);
4459        rval = qla82xx_mbx_beacon_ctl(vha, 1);
4460
4461        if (rval) {
4462                ql_log(ql_log_warn, vha, 0xb050,
4463                    "mbx set led config failed in %s\n", __func__);
4464                goto exit;
4465        }
4466        ha->beacon_blink_led = 1;
4467exit:
4468        qla82xx_idc_unlock(ha);
4469        return rval;
4470}
4471
4472int
4473qla82xx_beacon_off(struct scsi_qla_host *vha)
4474{
4475
4476        int rval;
4477        struct qla_hw_data *ha = vha->hw;
4478        qla82xx_idc_lock(ha);
4479        rval = qla82xx_mbx_beacon_ctl(vha, 0);
4480
4481        if (rval) {
4482                ql_log(ql_log_warn, vha, 0xb051,
4483                    "mbx set led config failed in %s\n", __func__);
4484                goto exit;
4485        }
4486        ha->beacon_blink_led = 0;
4487exit:
4488        qla82xx_idc_unlock(ha);
4489        return rval;
4490}
4491