linux/drivers/scsi/qla2xxx/qla_nx.c
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   1/*
   2 * QLogic Fibre Channel HBA Driver
   3 * Copyright (c)  2003-2012 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
 851        while (!done) {
 852                /* acquire semaphore2 from PCI HW block */
 853                done = qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_LOCK));
 854                if (done == 1)
 855                        break;
 856                if (timeout >= qla82xx_rom_lock_timeout)
 857                        return -1;
 858                timeout++;
 859        }
 860        qla82xx_wr_32(ha, QLA82XX_ROM_LOCK_ID, ROM_LOCK_DRIVER);
 861        return 0;
 862}
 863
 864static void
 865qla82xx_rom_unlock(struct qla_hw_data *ha)
 866{
 867        qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_UNLOCK));
 868}
 869
 870static int
 871qla82xx_wait_rom_busy(struct qla_hw_data *ha)
 872{
 873        long timeout = 0;
 874        long done = 0 ;
 875        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 876
 877        while (done == 0) {
 878                done = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_STATUS);
 879                done &= 4;
 880                timeout++;
 881                if (timeout >= rom_max_timeout) {
 882                        ql_dbg(ql_dbg_p3p, vha, 0xb00a,
 883                            "%s: Timeout reached waiting for rom busy.\n",
 884                            QLA2XXX_DRIVER_NAME);
 885                        return -1;
 886                }
 887        }
 888        return 0;
 889}
 890
 891static int
 892qla82xx_wait_rom_done(struct qla_hw_data *ha)
 893{
 894        long timeout = 0;
 895        long done = 0 ;
 896        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 897
 898        while (done == 0) {
 899                done = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_STATUS);
 900                done &= 2;
 901                timeout++;
 902                if (timeout >= rom_max_timeout) {
 903                        ql_dbg(ql_dbg_p3p, vha, 0xb00b,
 904                            "%s: Timeout reached waiting for rom done.\n",
 905                            QLA2XXX_DRIVER_NAME);
 906                        return -1;
 907                }
 908        }
 909        return 0;
 910}
 911
 912static int
 913qla82xx_md_rw_32(struct qla_hw_data *ha, uint32_t off, u32 data, uint8_t flag)
 914{
 915        uint32_t  off_value, rval = 0;
 916
 917        WRT_REG_DWORD((void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase),
 918            (off & 0xFFFF0000));
 919
 920        /* Read back value to make sure write has gone through */
 921        RD_REG_DWORD((void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase));
 922        off_value  = (off & 0x0000FFFF);
 923
 924        if (flag)
 925                WRT_REG_DWORD((void __iomem *)
 926                    (off_value + CRB_INDIRECT_2M + ha->nx_pcibase),
 927                    data);
 928        else
 929                rval = RD_REG_DWORD((void __iomem *)
 930                    (off_value + CRB_INDIRECT_2M + ha->nx_pcibase));
 931
 932        return rval;
 933}
 934
 935static int
 936qla82xx_do_rom_fast_read(struct qla_hw_data *ha, int addr, int *valp)
 937{
 938        /* Dword reads to flash. */
 939        qla82xx_md_rw_32(ha, MD_DIRECT_ROM_WINDOW, (addr & 0xFFFF0000), 1);
 940        *valp = qla82xx_md_rw_32(ha, MD_DIRECT_ROM_READ_BASE +
 941            (addr & 0x0000FFFF), 0, 0);
 942
 943        return 0;
 944}
 945
 946static int
 947qla82xx_rom_fast_read(struct qla_hw_data *ha, int addr, int *valp)
 948{
 949        int ret, loops = 0;
 950        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 951
 952        while ((qla82xx_rom_lock(ha) != 0) && (loops < 50000)) {
 953                udelay(100);
 954                schedule();
 955                loops++;
 956        }
 957        if (loops >= 50000) {
 958                ql_log(ql_log_fatal, vha, 0x00b9,
 959                    "Failed to acquire SEM2 lock.\n");
 960                return -1;
 961        }
 962        ret = qla82xx_do_rom_fast_read(ha, addr, valp);
 963        qla82xx_rom_unlock(ha);
 964        return ret;
 965}
 966
 967static int
 968qla82xx_read_status_reg(struct qla_hw_data *ha, uint32_t *val)
 969{
 970        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 971        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_RDSR);
 972        qla82xx_wait_rom_busy(ha);
 973        if (qla82xx_wait_rom_done(ha)) {
 974                ql_log(ql_log_warn, vha, 0xb00c,
 975                    "Error waiting for rom done.\n");
 976                return -1;
 977        }
 978        *val = qla82xx_rd_32(ha, QLA82XX_ROMUSB_ROM_RDATA);
 979        return 0;
 980}
 981
 982static int
 983qla82xx_flash_wait_write_finish(struct qla_hw_data *ha)
 984{
 985        long timeout = 0;
 986        uint32_t done = 1 ;
 987        uint32_t val;
 988        int ret = 0;
 989        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 990
 991        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 0);
 992        while ((done != 0) && (ret == 0)) {
 993                ret = qla82xx_read_status_reg(ha, &val);
 994                done = val & 1;
 995                timeout++;
 996                udelay(10);
 997                cond_resched();
 998                if (timeout >= 50000) {
 999                        ql_log(ql_log_warn, vha, 0xb00d,
1000                            "Timeout reached waiting for write finish.\n");
1001                        return -1;
1002                }
1003        }
1004        return ret;
1005}
1006
1007static int
1008qla82xx_flash_set_write_enable(struct qla_hw_data *ha)
1009{
1010        uint32_t val;
1011        qla82xx_wait_rom_busy(ha);
1012        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 0);
1013        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_WREN);
1014        qla82xx_wait_rom_busy(ha);
1015        if (qla82xx_wait_rom_done(ha))
1016                return -1;
1017        if (qla82xx_read_status_reg(ha, &val) != 0)
1018                return -1;
1019        if ((val & 2) != 2)
1020                return -1;
1021        return 0;
1022}
1023
1024static int
1025qla82xx_write_status_reg(struct qla_hw_data *ha, uint32_t val)
1026{
1027        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1028        if (qla82xx_flash_set_write_enable(ha))
1029                return -1;
1030        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_WDATA, val);
1031        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, 0x1);
1032        if (qla82xx_wait_rom_done(ha)) {
1033                ql_log(ql_log_warn, vha, 0xb00e,
1034                    "Error waiting for rom done.\n");
1035                return -1;
1036        }
1037        return qla82xx_flash_wait_write_finish(ha);
1038}
1039
1040static int
1041qla82xx_write_disable_flash(struct qla_hw_data *ha)
1042{
1043        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1044        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_WRDI);
1045        if (qla82xx_wait_rom_done(ha)) {
1046                ql_log(ql_log_warn, vha, 0xb00f,
1047                    "Error waiting for rom done.\n");
1048                return -1;
1049        }
1050        return 0;
1051}
1052
1053static int
1054ql82xx_rom_lock_d(struct qla_hw_data *ha)
1055{
1056        int loops = 0;
1057        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1058
1059        while ((qla82xx_rom_lock(ha) != 0) && (loops < 50000)) {
1060                udelay(100);
1061                cond_resched();
1062                loops++;
1063        }
1064        if (loops >= 50000) {
1065                ql_log(ql_log_warn, vha, 0xb010,
1066                    "ROM lock failed.\n");
1067                return -1;
1068        }
1069        return 0;
1070}
1071
1072static int
1073qla82xx_write_flash_dword(struct qla_hw_data *ha, uint32_t flashaddr,
1074        uint32_t data)
1075{
1076        int ret = 0;
1077        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1078
1079        ret = ql82xx_rom_lock_d(ha);
1080        if (ret < 0) {
1081                ql_log(ql_log_warn, vha, 0xb011,
1082                    "ROM lock failed.\n");
1083                return ret;
1084        }
1085
1086        if (qla82xx_flash_set_write_enable(ha))
1087                goto done_write;
1088
1089        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_WDATA, data);
1090        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ADDRESS, flashaddr);
1091        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 3);
1092        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_PP);
1093        qla82xx_wait_rom_busy(ha);
1094        if (qla82xx_wait_rom_done(ha)) {
1095                ql_log(ql_log_warn, vha, 0xb012,
1096                    "Error waiting for rom done.\n");
1097                ret = -1;
1098                goto done_write;
1099        }
1100
1101        ret = qla82xx_flash_wait_write_finish(ha);
1102
1103done_write:
1104        qla82xx_rom_unlock(ha);
1105        return ret;
1106}
1107
1108/* This routine does CRB initialize sequence
1109 *  to put the ISP into operational state
1110 */
1111static int
1112qla82xx_pinit_from_rom(scsi_qla_host_t *vha)
1113{
1114        int addr, val;
1115        int i ;
1116        struct crb_addr_pair *buf;
1117        unsigned long off;
1118        unsigned offset, n;
1119        struct qla_hw_data *ha = vha->hw;
1120
1121        struct crb_addr_pair {
1122                long addr;
1123                long data;
1124        };
1125
1126        /* Halt all the individual PEGs and other blocks of the ISP */
1127        qla82xx_rom_lock(ha);
1128
1129        /* disable all I2Q */
1130        qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x10, 0x0);
1131        qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x14, 0x0);
1132        qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x18, 0x0);
1133        qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x1c, 0x0);
1134        qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x20, 0x0);
1135        qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x24, 0x0);
1136
1137        /* disable all niu interrupts */
1138        qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x40, 0xff);
1139        /* disable xge rx/tx */
1140        qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x70000, 0x00);
1141        /* disable xg1 rx/tx */
1142        qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x80000, 0x00);
1143        /* disable sideband mac */
1144        qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x90000, 0x00);
1145        /* disable ap0 mac */
1146        qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0xa0000, 0x00);
1147        /* disable ap1 mac */
1148        qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0xb0000, 0x00);
1149
1150        /* halt sre */
1151        val = qla82xx_rd_32(ha, QLA82XX_CRB_SRE + 0x1000);
1152        qla82xx_wr_32(ha, QLA82XX_CRB_SRE + 0x1000, val & (~(0x1)));
1153
1154        /* halt epg */
1155        qla82xx_wr_32(ha, QLA82XX_CRB_EPG + 0x1300, 0x1);
1156
1157        /* halt timers */
1158        qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x0, 0x0);
1159        qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x8, 0x0);
1160        qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x10, 0x0);
1161        qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x18, 0x0);
1162        qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x100, 0x0);
1163        qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x200, 0x0);
1164
1165        /* halt pegs */
1166        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x3c, 1);
1167        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1 + 0x3c, 1);
1168        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2 + 0x3c, 1);
1169        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3 + 0x3c, 1);
1170        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_4 + 0x3c, 1);
1171        msleep(20);
1172
1173        /* big hammer */
1174        if (test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
1175                /* don't reset CAM block on reset */
1176                qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xfeffffff);
1177        else
1178                qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xffffffff);
1179        qla82xx_rom_unlock(ha);
1180
1181        /* Read the signature value from the flash.
1182         * Offset 0: Contain signature (0xcafecafe)
1183         * Offset 4: Offset and number of addr/value pairs
1184         * that present in CRB initialize sequence
1185         */
1186        if (qla82xx_rom_fast_read(ha, 0, &n) != 0 || n != 0xcafecafeUL ||
1187            qla82xx_rom_fast_read(ha, 4, &n) != 0) {
1188                ql_log(ql_log_fatal, vha, 0x006e,
1189                    "Error Reading crb_init area: n: %08x.\n", n);
1190                return -1;
1191        }
1192
1193        /* Offset in flash = lower 16 bits
1194         * Number of entries = upper 16 bits
1195         */
1196        offset = n & 0xffffU;
1197        n = (n >> 16) & 0xffffU;
1198
1199        /* number of addr/value pair should not exceed 1024 entries */
1200        if (n  >= 1024) {
1201                ql_log(ql_log_fatal, vha, 0x0071,
1202                    "Card flash not initialized:n=0x%x.\n", n);
1203                return -1;
1204        }
1205
1206        ql_log(ql_log_info, vha, 0x0072,
1207            "%d CRB init values found in ROM.\n", n);
1208
1209        buf = kmalloc(n * sizeof(struct crb_addr_pair), GFP_KERNEL);
1210        if (buf == NULL) {
1211                ql_log(ql_log_fatal, vha, 0x010c,
1212                    "Unable to allocate memory.\n");
1213                return -1;
1214        }
1215
1216        for (i = 0; i < n; i++) {
1217                if (qla82xx_rom_fast_read(ha, 8*i + 4*offset, &val) != 0 ||
1218                    qla82xx_rom_fast_read(ha, 8*i + 4*offset + 4, &addr) != 0) {
1219                        kfree(buf);
1220                        return -1;
1221                }
1222
1223                buf[i].addr = addr;
1224                buf[i].data = val;
1225        }
1226
1227        for (i = 0; i < n; i++) {
1228                /* Translate internal CRB initialization
1229                 * address to PCI bus address
1230                 */
1231                off = qla82xx_decode_crb_addr((unsigned long)buf[i].addr) +
1232                    QLA82XX_PCI_CRBSPACE;
1233                /* Not all CRB  addr/value pair to be written,
1234                 * some of them are skipped
1235                 */
1236
1237                /* skipping cold reboot MAGIC */
1238                if (off == QLA82XX_CAM_RAM(0x1fc))
1239                        continue;
1240
1241                /* do not reset PCI */
1242                if (off == (ROMUSB_GLB + 0xbc))
1243                        continue;
1244
1245                /* skip core clock, so that firmware can increase the clock */
1246                if (off == (ROMUSB_GLB + 0xc8))
1247                        continue;
1248
1249                /* skip the function enable register */
1250                if (off == QLA82XX_PCIE_REG(PCIE_SETUP_FUNCTION))
1251                        continue;
1252
1253                if (off == QLA82XX_PCIE_REG(PCIE_SETUP_FUNCTION2))
1254                        continue;
1255
1256                if ((off & 0x0ff00000) == QLA82XX_CRB_SMB)
1257                        continue;
1258
1259                if ((off & 0x0ff00000) == QLA82XX_CRB_DDR_NET)
1260                        continue;
1261
1262                if (off == ADDR_ERROR) {
1263                        ql_log(ql_log_fatal, vha, 0x0116,
1264                            "Unknow addr: 0x%08lx.\n", buf[i].addr);
1265                        continue;
1266                }
1267
1268                qla82xx_wr_32(ha, off, buf[i].data);
1269
1270                /* ISP requires much bigger delay to settle down,
1271                 * else crb_window returns 0xffffffff
1272                 */
1273                if (off == QLA82XX_ROMUSB_GLB_SW_RESET)
1274                        msleep(1000);
1275
1276                /* ISP requires millisec delay between
1277                 * successive CRB register updation
1278                 */
1279                msleep(1);
1280        }
1281
1282        kfree(buf);
1283
1284        /* Resetting the data and instruction cache */
1285        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0xec, 0x1e);
1286        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0x4c, 8);
1287        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_I+0x4c, 8);
1288
1289        /* Clear all protocol processing engines */
1290        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0x8, 0);
1291        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0xc, 0);
1292        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0x8, 0);
1293        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0xc, 0);
1294        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0x8, 0);
1295        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0xc, 0);
1296        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0x8, 0);
1297        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0xc, 0);
1298        return 0;
1299}
1300
1301static int
1302qla82xx_pci_mem_write_2M(struct qla_hw_data *ha,
1303                u64 off, void *data, int size)
1304{
1305        int i, j, ret = 0, loop, sz[2], off0;
1306        int scale, shift_amount, startword;
1307        uint32_t temp;
1308        uint64_t off8, mem_crb, tmpw, word[2] = {0, 0};
1309
1310        /*
1311         * If not MN, go check for MS or invalid.
1312         */
1313        if (off >= QLA82XX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX)
1314                mem_crb = QLA82XX_CRB_QDR_NET;
1315        else {
1316                mem_crb = QLA82XX_CRB_DDR_NET;
1317                if (qla82xx_pci_mem_bound_check(ha, off, size) == 0)
1318                        return qla82xx_pci_mem_write_direct(ha,
1319                            off, data, size);
1320        }
1321
1322        off0 = off & 0x7;
1323        sz[0] = (size < (8 - off0)) ? size : (8 - off0);
1324        sz[1] = size - sz[0];
1325
1326        off8 = off & 0xfffffff0;
1327        loop = (((off & 0xf) + size - 1) >> 4) + 1;
1328        shift_amount = 4;
1329        scale = 2;
1330        startword = (off & 0xf)/8;
1331
1332        for (i = 0; i < loop; i++) {
1333                if (qla82xx_pci_mem_read_2M(ha, off8 +
1334                    (i << shift_amount), &word[i * scale], 8))
1335                        return -1;
1336        }
1337
1338        switch (size) {
1339        case 1:
1340                tmpw = *((uint8_t *)data);
1341                break;
1342        case 2:
1343                tmpw = *((uint16_t *)data);
1344                break;
1345        case 4:
1346                tmpw = *((uint32_t *)data);
1347                break;
1348        case 8:
1349        default:
1350                tmpw = *((uint64_t *)data);
1351                break;
1352        }
1353
1354        if (sz[0] == 8) {
1355                word[startword] = tmpw;
1356        } else {
1357                word[startword] &=
1358                        ~((~(~0ULL << (sz[0] * 8))) << (off0 * 8));
1359                word[startword] |= tmpw << (off0 * 8);
1360        }
1361        if (sz[1] != 0) {
1362                word[startword+1] &= ~(~0ULL << (sz[1] * 8));
1363                word[startword+1] |= tmpw >> (sz[0] * 8);
1364        }
1365
1366        for (i = 0; i < loop; i++) {
1367                temp = off8 + (i << shift_amount);
1368                qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_LO, temp);
1369                temp = 0;
1370                qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_HI, temp);
1371                temp = word[i * scale] & 0xffffffff;
1372                qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_LO, temp);
1373                temp = (word[i * scale] >> 32) & 0xffffffff;
1374                qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_HI, temp);
1375                temp = word[i*scale + 1] & 0xffffffff;
1376                qla82xx_wr_32(ha, mem_crb +
1377                    MIU_TEST_AGT_WRDATA_UPPER_LO, temp);
1378                temp = (word[i*scale + 1] >> 32) & 0xffffffff;
1379                qla82xx_wr_32(ha, mem_crb +
1380                    MIU_TEST_AGT_WRDATA_UPPER_HI, temp);
1381
1382                temp = MIU_TA_CTL_ENABLE | MIU_TA_CTL_WRITE;
1383                qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1384                temp = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE | MIU_TA_CTL_WRITE;
1385                qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1386
1387                for (j = 0; j < MAX_CTL_CHECK; j++) {
1388                        temp = qla82xx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL);
1389                        if ((temp & MIU_TA_CTL_BUSY) == 0)
1390                                break;
1391                }
1392
1393                if (j >= MAX_CTL_CHECK) {
1394                        if (printk_ratelimit())
1395                                dev_err(&ha->pdev->dev,
1396                                    "failed to write through agent.\n");
1397                        ret = -1;
1398                        break;
1399                }
1400        }
1401
1402        return ret;
1403}
1404
1405static int
1406qla82xx_fw_load_from_flash(struct qla_hw_data *ha)
1407{
1408        int  i;
1409        long size = 0;
1410        long flashaddr = ha->flt_region_bootload << 2;
1411        long memaddr = BOOTLD_START;
1412        u64 data;
1413        u32 high, low;
1414        size = (IMAGE_START - BOOTLD_START) / 8;
1415
1416        for (i = 0; i < size; i++) {
1417                if ((qla82xx_rom_fast_read(ha, flashaddr, (int *)&low)) ||
1418                    (qla82xx_rom_fast_read(ha, flashaddr + 4, (int *)&high))) {
1419                        return -1;
1420                }
1421                data = ((u64)high << 32) | low ;
1422                qla82xx_pci_mem_write_2M(ha, memaddr, &data, 8);
1423                flashaddr += 8;
1424                memaddr += 8;
1425
1426                if (i % 0x1000 == 0)
1427                        msleep(1);
1428        }
1429        udelay(100);
1430        read_lock(&ha->hw_lock);
1431        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x18, 0x1020);
1432        qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0x80001e);
1433        read_unlock(&ha->hw_lock);
1434        return 0;
1435}
1436
1437int
1438qla82xx_pci_mem_read_2M(struct qla_hw_data *ha,
1439                u64 off, void *data, int size)
1440{
1441        int i, j = 0, k, start, end, loop, sz[2], off0[2];
1442        int           shift_amount;
1443        uint32_t      temp;
1444        uint64_t      off8, val, mem_crb, word[2] = {0, 0};
1445
1446        /*
1447         * If not MN, go check for MS or invalid.
1448         */
1449
1450        if (off >= QLA82XX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX)
1451                mem_crb = QLA82XX_CRB_QDR_NET;
1452        else {
1453                mem_crb = QLA82XX_CRB_DDR_NET;
1454                if (qla82xx_pci_mem_bound_check(ha, off, size) == 0)
1455                        return qla82xx_pci_mem_read_direct(ha,
1456                            off, data, size);
1457        }
1458
1459        off8 = off & 0xfffffff0;
1460        off0[0] = off & 0xf;
1461        sz[0] = (size < (16 - off0[0])) ? size : (16 - off0[0]);
1462        shift_amount = 4;
1463        loop = ((off0[0] + size - 1) >> shift_amount) + 1;
1464        off0[1] = 0;
1465        sz[1] = size - sz[0];
1466
1467        for (i = 0; i < loop; i++) {
1468                temp = off8 + (i << shift_amount);
1469                qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_LO, temp);
1470                temp = 0;
1471                qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_HI, temp);
1472                temp = MIU_TA_CTL_ENABLE;
1473                qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1474                temp = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE;
1475                qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1476
1477                for (j = 0; j < MAX_CTL_CHECK; j++) {
1478                        temp = qla82xx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL);
1479                        if ((temp & MIU_TA_CTL_BUSY) == 0)
1480                                break;
1481                }
1482
1483                if (j >= MAX_CTL_CHECK) {
1484                        if (printk_ratelimit())
1485                                dev_err(&ha->pdev->dev,
1486                                    "failed to read through agent.\n");
1487                        break;
1488                }
1489
1490                start = off0[i] >> 2;
1491                end   = (off0[i] + sz[i] - 1) >> 2;
1492                for (k = start; k <= end; k++) {
1493                        temp = qla82xx_rd_32(ha,
1494                                        mem_crb + MIU_TEST_AGT_RDDATA(k));
1495                        word[i] |= ((uint64_t)temp << (32 * (k & 1)));
1496                }
1497        }
1498
1499        if (j >= MAX_CTL_CHECK)
1500                return -1;
1501
1502        if ((off0[0] & 7) == 0) {
1503                val = word[0];
1504        } else {
1505                val = ((word[0] >> (off0[0] * 8)) & (~(~0ULL << (sz[0] * 8)))) |
1506                        ((word[1] & (~(~0ULL << (sz[1] * 8)))) << (sz[0] * 8));
1507        }
1508
1509        switch (size) {
1510        case 1:
1511                *(uint8_t  *)data = val;
1512                break;
1513        case 2:
1514                *(uint16_t *)data = val;
1515                break;
1516        case 4:
1517                *(uint32_t *)data = val;
1518                break;
1519        case 8:
1520                *(uint64_t *)data = val;
1521                break;
1522        }
1523        return 0;
1524}
1525
1526
1527static struct qla82xx_uri_table_desc *
1528qla82xx_get_table_desc(const u8 *unirom, int section)
1529{
1530        uint32_t i;
1531        struct qla82xx_uri_table_desc *directory =
1532                (struct qla82xx_uri_table_desc *)&unirom[0];
1533        __le32 offset;
1534        __le32 tab_type;
1535        __le32 entries = cpu_to_le32(directory->num_entries);
1536
1537        for (i = 0; i < entries; i++) {
1538                offset = cpu_to_le32(directory->findex) +
1539                    (i * cpu_to_le32(directory->entry_size));
1540                tab_type = cpu_to_le32(*((u32 *)&unirom[offset] + 8));
1541
1542                if (tab_type == section)
1543                        return (struct qla82xx_uri_table_desc *)&unirom[offset];
1544        }
1545
1546        return NULL;
1547}
1548
1549static struct qla82xx_uri_data_desc *
1550qla82xx_get_data_desc(struct qla_hw_data *ha,
1551        u32 section, u32 idx_offset)
1552{
1553        const u8 *unirom = ha->hablob->fw->data;
1554        int idx = cpu_to_le32(*((int *)&unirom[ha->file_prd_off] + idx_offset));
1555        struct qla82xx_uri_table_desc *tab_desc = NULL;
1556        __le32 offset;
1557
1558        tab_desc = qla82xx_get_table_desc(unirom, section);
1559        if (!tab_desc)
1560                return NULL;
1561
1562        offset = cpu_to_le32(tab_desc->findex) +
1563            (cpu_to_le32(tab_desc->entry_size) * idx);
1564
1565        return (struct qla82xx_uri_data_desc *)&unirom[offset];
1566}
1567
1568static u8 *
1569qla82xx_get_bootld_offset(struct qla_hw_data *ha)
1570{
1571        u32 offset = BOOTLD_START;
1572        struct qla82xx_uri_data_desc *uri_desc = NULL;
1573
1574        if (ha->fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
1575                uri_desc = qla82xx_get_data_desc(ha,
1576                    QLA82XX_URI_DIR_SECT_BOOTLD, QLA82XX_URI_BOOTLD_IDX_OFF);
1577                if (uri_desc)
1578                        offset = cpu_to_le32(uri_desc->findex);
1579        }
1580
1581        return (u8 *)&ha->hablob->fw->data[offset];
1582}
1583
1584static __le32
1585qla82xx_get_fw_size(struct qla_hw_data *ha)
1586{
1587        struct qla82xx_uri_data_desc *uri_desc = NULL;
1588
1589        if (ha->fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
1590                uri_desc =  qla82xx_get_data_desc(ha, QLA82XX_URI_DIR_SECT_FW,
1591                    QLA82XX_URI_FIRMWARE_IDX_OFF);
1592                if (uri_desc)
1593                        return cpu_to_le32(uri_desc->size);
1594        }
1595
1596        return cpu_to_le32(*(u32 *)&ha->hablob->fw->data[FW_SIZE_OFFSET]);
1597}
1598
1599static u8 *
1600qla82xx_get_fw_offs(struct qla_hw_data *ha)
1601{
1602        u32 offset = IMAGE_START;
1603        struct qla82xx_uri_data_desc *uri_desc = NULL;
1604
1605        if (ha->fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
1606                uri_desc = qla82xx_get_data_desc(ha, QLA82XX_URI_DIR_SECT_FW,
1607                        QLA82XX_URI_FIRMWARE_IDX_OFF);
1608                if (uri_desc)
1609                        offset = cpu_to_le32(uri_desc->findex);
1610        }
1611
1612        return (u8 *)&ha->hablob->fw->data[offset];
1613}
1614
1615/* PCI related functions */
1616int qla82xx_pci_region_offset(struct pci_dev *pdev, int region)
1617{
1618        unsigned long val = 0;
1619        u32 control;
1620
1621        switch (region) {
1622        case 0:
1623                val = 0;
1624                break;
1625        case 1:
1626                pci_read_config_dword(pdev, QLA82XX_PCI_REG_MSIX_TBL, &control);
1627                val = control + QLA82XX_MSIX_TBL_SPACE;
1628                break;
1629        }
1630        return val;
1631}
1632
1633
1634int
1635qla82xx_iospace_config(struct qla_hw_data *ha)
1636{
1637        uint32_t len = 0;
1638
1639        if (pci_request_regions(ha->pdev, QLA2XXX_DRIVER_NAME)) {
1640                ql_log_pci(ql_log_fatal, ha->pdev, 0x000c,
1641                    "Failed to reserver selected regions.\n");
1642                goto iospace_error_exit;
1643        }
1644
1645        /* Use MMIO operations for all accesses. */
1646        if (!(pci_resource_flags(ha->pdev, 0) & IORESOURCE_MEM)) {
1647                ql_log_pci(ql_log_fatal, ha->pdev, 0x000d,
1648                    "Region #0 not an MMIO resource, aborting.\n");
1649                goto iospace_error_exit;
1650        }
1651
1652        len = pci_resource_len(ha->pdev, 0);
1653        ha->nx_pcibase =
1654            (unsigned long)ioremap(pci_resource_start(ha->pdev, 0), len);
1655        if (!ha->nx_pcibase) {
1656                ql_log_pci(ql_log_fatal, ha->pdev, 0x000e,
1657                    "Cannot remap pcibase MMIO, aborting.\n");
1658                goto iospace_error_exit;
1659        }
1660
1661        /* Mapping of IO base pointer */
1662        ha->iobase = (device_reg_t __iomem *)((uint8_t *)ha->nx_pcibase +
1663            0xbc000 + (ha->pdev->devfn << 11));
1664
1665        if (!ql2xdbwr) {
1666                ha->nxdb_wr_ptr =
1667                    (unsigned long)ioremap((pci_resource_start(ha->pdev, 4) +
1668                    (ha->pdev->devfn << 12)), 4);
1669                if (!ha->nxdb_wr_ptr) {
1670                        ql_log_pci(ql_log_fatal, ha->pdev, 0x000f,
1671                            "Cannot remap MMIO, aborting.\n");
1672                        goto iospace_error_exit;
1673                }
1674
1675                /* Mapping of IO base pointer,
1676                 * door bell read and write pointer
1677                 */
1678                ha->nxdb_rd_ptr = (uint8_t *) ha->nx_pcibase + (512 * 1024) +
1679                    (ha->pdev->devfn * 8);
1680        } else {
1681                ha->nxdb_wr_ptr = (ha->pdev->devfn == 6 ?
1682                        QLA82XX_CAMRAM_DB1 :
1683                        QLA82XX_CAMRAM_DB2);
1684        }
1685
1686        ha->max_req_queues = ha->max_rsp_queues = 1;
1687        ha->msix_count = ha->max_rsp_queues + 1;
1688        ql_dbg_pci(ql_dbg_multiq, ha->pdev, 0xc006,
1689            "nx_pci_base=%p iobase=%p "
1690            "max_req_queues=%d msix_count=%d.\n",
1691            (void *)ha->nx_pcibase, ha->iobase,
1692            ha->max_req_queues, ha->msix_count);
1693        ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0010,
1694            "nx_pci_base=%p iobase=%p "
1695            "max_req_queues=%d msix_count=%d.\n",
1696            (void *)ha->nx_pcibase, ha->iobase,
1697            ha->max_req_queues, ha->msix_count);
1698        return 0;
1699
1700iospace_error_exit:
1701        return -ENOMEM;
1702}
1703
1704/* GS related functions */
1705
1706/* Initialization related functions */
1707
1708/**
1709 * qla82xx_pci_config() - Setup ISP82xx PCI configuration registers.
1710 * @ha: HA context
1711 *
1712 * Returns 0 on success.
1713*/
1714int
1715qla82xx_pci_config(scsi_qla_host_t *vha)
1716{
1717        struct qla_hw_data *ha = vha->hw;
1718        int ret;
1719
1720        pci_set_master(ha->pdev);
1721        ret = pci_set_mwi(ha->pdev);
1722        ha->chip_revision = ha->pdev->revision;
1723        ql_dbg(ql_dbg_init, vha, 0x0043,
1724            "Chip revision:%d.\n",
1725            ha->chip_revision);
1726        return 0;
1727}
1728
1729/**
1730 * qla82xx_reset_chip() - Setup ISP82xx PCI configuration registers.
1731 * @ha: HA context
1732 *
1733 * Returns 0 on success.
1734 */
1735void
1736qla82xx_reset_chip(scsi_qla_host_t *vha)
1737{
1738        struct qla_hw_data *ha = vha->hw;
1739        ha->isp_ops->disable_intrs(ha);
1740}
1741
1742void qla82xx_config_rings(struct scsi_qla_host *vha)
1743{
1744        struct qla_hw_data *ha = vha->hw;
1745        struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
1746        struct init_cb_81xx *icb;
1747        struct req_que *req = ha->req_q_map[0];
1748        struct rsp_que *rsp = ha->rsp_q_map[0];
1749
1750        /* Setup ring parameters in initialization control block. */
1751        icb = (struct init_cb_81xx *)ha->init_cb;
1752        icb->request_q_outpointer = __constant_cpu_to_le16(0);
1753        icb->response_q_inpointer = __constant_cpu_to_le16(0);
1754        icb->request_q_length = cpu_to_le16(req->length);
1755        icb->response_q_length = cpu_to_le16(rsp->length);
1756        icb->request_q_address[0] = cpu_to_le32(LSD(req->dma));
1757        icb->request_q_address[1] = cpu_to_le32(MSD(req->dma));
1758        icb->response_q_address[0] = cpu_to_le32(LSD(rsp->dma));
1759        icb->response_q_address[1] = cpu_to_le32(MSD(rsp->dma));
1760
1761        WRT_REG_DWORD((unsigned long  __iomem *)&reg->req_q_out[0], 0);
1762        WRT_REG_DWORD((unsigned long  __iomem *)&reg->rsp_q_in[0], 0);
1763        WRT_REG_DWORD((unsigned long  __iomem *)&reg->rsp_q_out[0], 0);
1764}
1765
1766static int
1767qla82xx_fw_load_from_blob(struct qla_hw_data *ha)
1768{
1769        u64 *ptr64;
1770        u32 i, flashaddr, size;
1771        __le64 data;
1772
1773        size = (IMAGE_START - BOOTLD_START) / 8;
1774
1775        ptr64 = (u64 *)qla82xx_get_bootld_offset(ha);
1776        flashaddr = BOOTLD_START;
1777
1778        for (i = 0; i < size; i++) {
1779                data = cpu_to_le64(ptr64[i]);
1780                if (qla82xx_pci_mem_write_2M(ha, flashaddr, &data, 8))
1781                        return -EIO;
1782                flashaddr += 8;
1783        }
1784
1785        flashaddr = FLASH_ADDR_START;
1786        size = (__force u32)qla82xx_get_fw_size(ha) / 8;
1787        ptr64 = (u64 *)qla82xx_get_fw_offs(ha);
1788
1789        for (i = 0; i < size; i++) {
1790                data = cpu_to_le64(ptr64[i]);
1791
1792                if (qla82xx_pci_mem_write_2M(ha, flashaddr, &data, 8))
1793                        return -EIO;
1794                flashaddr += 8;
1795        }
1796        udelay(100);
1797
1798        /* Write a magic value to CAMRAM register
1799         * at a specified offset to indicate
1800         * that all data is written and
1801         * ready for firmware to initialize.
1802         */
1803        qla82xx_wr_32(ha, QLA82XX_CAM_RAM(0x1fc), QLA82XX_BDINFO_MAGIC);
1804
1805        read_lock(&ha->hw_lock);
1806        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x18, 0x1020);
1807        qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0x80001e);
1808        read_unlock(&ha->hw_lock);
1809        return 0;
1810}
1811
1812static int
1813qla82xx_set_product_offset(struct qla_hw_data *ha)
1814{
1815        struct qla82xx_uri_table_desc *ptab_desc = NULL;
1816        const uint8_t *unirom = ha->hablob->fw->data;
1817        uint32_t i;
1818        __le32 entries;
1819        __le32 flags, file_chiprev, offset;
1820        uint8_t chiprev = ha->chip_revision;
1821        /* Hardcoding mn_present flag for P3P */
1822        int mn_present = 0;
1823        uint32_t flagbit;
1824
1825        ptab_desc = qla82xx_get_table_desc(unirom,
1826                 QLA82XX_URI_DIR_SECT_PRODUCT_TBL);
1827       if (!ptab_desc)
1828                return -1;
1829
1830        entries = cpu_to_le32(ptab_desc->num_entries);
1831
1832        for (i = 0; i < entries; i++) {
1833                offset = cpu_to_le32(ptab_desc->findex) +
1834                        (i * cpu_to_le32(ptab_desc->entry_size));
1835                flags = cpu_to_le32(*((int *)&unirom[offset] +
1836                        QLA82XX_URI_FLAGS_OFF));
1837                file_chiprev = cpu_to_le32(*((int *)&unirom[offset] +
1838                        QLA82XX_URI_CHIP_REV_OFF));
1839
1840                flagbit = mn_present ? 1 : 2;
1841
1842                if ((chiprev == file_chiprev) && ((1ULL << flagbit) & flags)) {
1843                        ha->file_prd_off = offset;
1844                        return 0;
1845                }
1846        }
1847        return -1;
1848}
1849
1850static int
1851qla82xx_validate_firmware_blob(scsi_qla_host_t *vha, uint8_t fw_type)
1852{
1853        __le32 val;
1854        uint32_t min_size;
1855        struct qla_hw_data *ha = vha->hw;
1856        const struct firmware *fw = ha->hablob->fw;
1857
1858        ha->fw_type = fw_type;
1859
1860        if (fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
1861                if (qla82xx_set_product_offset(ha))
1862                        return -EINVAL;
1863
1864                min_size = QLA82XX_URI_FW_MIN_SIZE;
1865        } else {
1866                val = cpu_to_le32(*(u32 *)&fw->data[QLA82XX_FW_MAGIC_OFFSET]);
1867                if ((__force u32)val != QLA82XX_BDINFO_MAGIC)
1868                        return -EINVAL;
1869
1870                min_size = QLA82XX_FW_MIN_SIZE;
1871        }
1872
1873        if (fw->size < min_size)
1874                return -EINVAL;
1875        return 0;
1876}
1877
1878static int
1879qla82xx_check_cmdpeg_state(struct qla_hw_data *ha)
1880{
1881        u32 val = 0;
1882        int retries = 60;
1883        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1884
1885        do {
1886                read_lock(&ha->hw_lock);
1887                val = qla82xx_rd_32(ha, CRB_CMDPEG_STATE);
1888                read_unlock(&ha->hw_lock);
1889
1890                switch (val) {
1891                case PHAN_INITIALIZE_COMPLETE:
1892                case PHAN_INITIALIZE_ACK:
1893                        return QLA_SUCCESS;
1894                case PHAN_INITIALIZE_FAILED:
1895                        break;
1896                default:
1897                        break;
1898                }
1899                ql_log(ql_log_info, vha, 0x00a8,
1900                    "CRB_CMDPEG_STATE: 0x%x and retries:0x%x.\n",
1901                    val, retries);
1902
1903                msleep(500);
1904
1905        } while (--retries);
1906
1907        ql_log(ql_log_fatal, vha, 0x00a9,
1908            "Cmd Peg initialization failed: 0x%x.\n", val);
1909
1910        val = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_PEGTUNE_DONE);
1911        read_lock(&ha->hw_lock);
1912        qla82xx_wr_32(ha, CRB_CMDPEG_STATE, PHAN_INITIALIZE_FAILED);
1913        read_unlock(&ha->hw_lock);
1914        return QLA_FUNCTION_FAILED;
1915}
1916
1917static int
1918qla82xx_check_rcvpeg_state(struct qla_hw_data *ha)
1919{
1920        u32 val = 0;
1921        int retries = 60;
1922        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1923
1924        do {
1925                read_lock(&ha->hw_lock);
1926                val = qla82xx_rd_32(ha, CRB_RCVPEG_STATE);
1927                read_unlock(&ha->hw_lock);
1928
1929                switch (val) {
1930                case PHAN_INITIALIZE_COMPLETE:
1931                case PHAN_INITIALIZE_ACK:
1932                        return QLA_SUCCESS;
1933                case PHAN_INITIALIZE_FAILED:
1934                        break;
1935                default:
1936                        break;
1937                }
1938                ql_log(ql_log_info, vha, 0x00ab,
1939                    "CRB_RCVPEG_STATE: 0x%x and retries: 0x%x.\n",
1940                    val, retries);
1941
1942                msleep(500);
1943
1944        } while (--retries);
1945
1946        ql_log(ql_log_fatal, vha, 0x00ac,
1947            "Rcv Peg initializatin failed: 0x%x.\n", val);
1948        read_lock(&ha->hw_lock);
1949        qla82xx_wr_32(ha, CRB_RCVPEG_STATE, PHAN_INITIALIZE_FAILED);
1950        read_unlock(&ha->hw_lock);
1951        return QLA_FUNCTION_FAILED;
1952}
1953
1954/* ISR related functions */
1955static struct qla82xx_legacy_intr_set legacy_intr[] = \
1956        QLA82XX_LEGACY_INTR_CONFIG;
1957
1958/*
1959 * qla82xx_mbx_completion() - Process mailbox command completions.
1960 * @ha: SCSI driver HA context
1961 * @mb0: Mailbox0 register
1962 */
1963static void
1964qla82xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
1965{
1966        uint16_t        cnt;
1967        uint16_t __iomem *wptr;
1968        struct qla_hw_data *ha = vha->hw;
1969        struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
1970        wptr = (uint16_t __iomem *)&reg->mailbox_out[1];
1971
1972        /* Load return mailbox registers. */
1973        ha->flags.mbox_int = 1;
1974        ha->mailbox_out[0] = mb0;
1975
1976        for (cnt = 1; cnt < ha->mbx_count; cnt++) {
1977                ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
1978                wptr++;
1979        }
1980
1981        if (!ha->mcp)
1982                ql_dbg(ql_dbg_async, vha, 0x5053,
1983                    "MBX pointer ERROR.\n");
1984}
1985
1986/*
1987 * qla82xx_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
1988 * @irq:
1989 * @dev_id: SCSI driver HA context
1990 * @regs:
1991 *
1992 * Called by system whenever the host adapter generates an interrupt.
1993 *
1994 * Returns handled flag.
1995 */
1996irqreturn_t
1997qla82xx_intr_handler(int irq, void *dev_id)
1998{
1999        scsi_qla_host_t *vha;
2000        struct qla_hw_data *ha;
2001        struct rsp_que *rsp;
2002        struct device_reg_82xx __iomem *reg;
2003        int status = 0, status1 = 0;
2004        unsigned long   flags;
2005        unsigned long   iter;
2006        uint32_t        stat = 0;
2007        uint16_t        mb[4];
2008
2009        rsp = (struct rsp_que *) dev_id;
2010        if (!rsp) {
2011                ql_log(ql_log_info, NULL, 0xb053,
2012                    "%s: NULL response queue pointer.\n", __func__);
2013                return IRQ_NONE;
2014        }
2015        ha = rsp->hw;
2016
2017        if (!ha->flags.msi_enabled) {
2018                status = qla82xx_rd_32(ha, ISR_INT_VECTOR);
2019                if (!(status & ha->nx_legacy_intr.int_vec_bit))
2020                        return IRQ_NONE;
2021
2022                status1 = qla82xx_rd_32(ha, ISR_INT_STATE_REG);
2023                if (!ISR_IS_LEGACY_INTR_TRIGGERED(status1))
2024                        return IRQ_NONE;
2025        }
2026
2027        /* clear the interrupt */
2028        qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_status_reg, 0xffffffff);
2029
2030        /* read twice to ensure write is flushed */
2031        qla82xx_rd_32(ha, ISR_INT_VECTOR);
2032        qla82xx_rd_32(ha, ISR_INT_VECTOR);
2033
2034        reg = &ha->iobase->isp82;
2035
2036        spin_lock_irqsave(&ha->hardware_lock, flags);
2037        vha = pci_get_drvdata(ha->pdev);
2038        for (iter = 1; iter--; ) {
2039
2040                if (RD_REG_DWORD(&reg->host_int)) {
2041                        stat = RD_REG_DWORD(&reg->host_status);
2042
2043                        switch (stat & 0xff) {
2044                        case 0x1:
2045                        case 0x2:
2046                        case 0x10:
2047                        case 0x11:
2048                                qla82xx_mbx_completion(vha, MSW(stat));
2049                                status |= MBX_INTERRUPT;
2050                                break;
2051                        case 0x12:
2052                                mb[0] = MSW(stat);
2053                                mb[1] = RD_REG_WORD(&reg->mailbox_out[1]);
2054                                mb[2] = RD_REG_WORD(&reg->mailbox_out[2]);
2055                                mb[3] = RD_REG_WORD(&reg->mailbox_out[3]);
2056                                qla2x00_async_event(vha, rsp, mb);
2057                                break;
2058                        case 0x13:
2059                                qla24xx_process_response_queue(vha, rsp);
2060                                break;
2061                        default:
2062                                ql_dbg(ql_dbg_async, vha, 0x5054,
2063                                    "Unrecognized interrupt type (%d).\n",
2064                                    stat & 0xff);
2065                                break;
2066                        }
2067                }
2068                WRT_REG_DWORD(&reg->host_int, 0);
2069        }
2070        spin_unlock_irqrestore(&ha->hardware_lock, flags);
2071        if (!ha->flags.msi_enabled)
2072                qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0xfbff);
2073
2074#ifdef QL_DEBUG_LEVEL_17
2075        if (!irq && ha->flags.eeh_busy)
2076                ql_log(ql_log_warn, vha, 0x503d,
2077                    "isr:status %x, cmd_flags %lx, mbox_int %x, stat %x.\n",
2078                    status, ha->mbx_cmd_flags, ha->flags.mbox_int, stat);
2079#endif
2080
2081        if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
2082            (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
2083                set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
2084                complete(&ha->mbx_intr_comp);
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        spin_unlock_irqrestore(&ha->hardware_lock, flags);
2146
2147#ifdef QL_DEBUG_LEVEL_17
2148        if (!irq && ha->flags.eeh_busy)
2149                ql_log(ql_log_warn, vha, 0x5044,
2150                    "isr:status %x, cmd_flags %lx, mbox_int %x, stat %x.\n",
2151                    status, ha->mbx_cmd_flags, ha->flags.mbox_int, stat);
2152#endif
2153
2154        if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
2155                (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
2156                        set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
2157                        complete(&ha->mbx_intr_comp);
2158        }
2159        return IRQ_HANDLED;
2160}
2161
2162irqreturn_t
2163qla82xx_msix_rsp_q(int irq, void *dev_id)
2164{
2165        scsi_qla_host_t *vha;
2166        struct qla_hw_data *ha;
2167        struct rsp_que *rsp;
2168        struct device_reg_82xx __iomem *reg;
2169        unsigned long flags;
2170
2171        rsp = (struct rsp_que *) dev_id;
2172        if (!rsp) {
2173                printk(KERN_INFO
2174                        "%s(): NULL response queue pointer.\n", __func__);
2175                return IRQ_NONE;
2176        }
2177
2178        ha = rsp->hw;
2179        reg = &ha->iobase->isp82;
2180        spin_lock_irqsave(&ha->hardware_lock, flags);
2181        vha = pci_get_drvdata(ha->pdev);
2182        qla24xx_process_response_queue(vha, rsp);
2183        WRT_REG_DWORD(&reg->host_int, 0);
2184        spin_unlock_irqrestore(&ha->hardware_lock, flags);
2185        return IRQ_HANDLED;
2186}
2187
2188void
2189qla82xx_poll(int irq, void *dev_id)
2190{
2191        scsi_qla_host_t *vha;
2192        struct qla_hw_data *ha;
2193        struct rsp_que *rsp;
2194        struct device_reg_82xx __iomem *reg;
2195        int status = 0;
2196        uint32_t stat;
2197        uint16_t mb[4];
2198        unsigned long flags;
2199
2200        rsp = (struct rsp_que *) dev_id;
2201        if (!rsp) {
2202                printk(KERN_INFO
2203                        "%s(): NULL response queue pointer.\n", __func__);
2204                return;
2205        }
2206        ha = rsp->hw;
2207
2208        reg = &ha->iobase->isp82;
2209        spin_lock_irqsave(&ha->hardware_lock, flags);
2210        vha = pci_get_drvdata(ha->pdev);
2211
2212        if (RD_REG_DWORD(&reg->host_int)) {
2213                stat = RD_REG_DWORD(&reg->host_status);
2214                switch (stat & 0xff) {
2215                case 0x1:
2216                case 0x2:
2217                case 0x10:
2218                case 0x11:
2219                        qla82xx_mbx_completion(vha, MSW(stat));
2220                        status |= MBX_INTERRUPT;
2221                        break;
2222                case 0x12:
2223                        mb[0] = MSW(stat);
2224                        mb[1] = RD_REG_WORD(&reg->mailbox_out[1]);
2225                        mb[2] = RD_REG_WORD(&reg->mailbox_out[2]);
2226                        mb[3] = RD_REG_WORD(&reg->mailbox_out[3]);
2227                        qla2x00_async_event(vha, rsp, mb);
2228                        break;
2229                case 0x13:
2230                        qla24xx_process_response_queue(vha, rsp);
2231                        break;
2232                default:
2233                        ql_dbg(ql_dbg_p3p, vha, 0xb013,
2234                            "Unrecognized interrupt type (%d).\n",
2235                            stat * 0xff);
2236                        break;
2237                }
2238        }
2239        WRT_REG_DWORD(&reg->host_int, 0);
2240        spin_unlock_irqrestore(&ha->hardware_lock, flags);
2241}
2242
2243void
2244qla82xx_enable_intrs(struct qla_hw_data *ha)
2245{
2246        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2247        qla82xx_mbx_intr_enable(vha);
2248        spin_lock_irq(&ha->hardware_lock);
2249        qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0xfbff);
2250        spin_unlock_irq(&ha->hardware_lock);
2251        ha->interrupts_on = 1;
2252}
2253
2254void
2255qla82xx_disable_intrs(struct qla_hw_data *ha)
2256{
2257        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2258        qla82xx_mbx_intr_disable(vha);
2259        spin_lock_irq(&ha->hardware_lock);
2260        qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0x0400);
2261        spin_unlock_irq(&ha->hardware_lock);
2262        ha->interrupts_on = 0;
2263}
2264
2265void qla82xx_init_flags(struct qla_hw_data *ha)
2266{
2267        struct qla82xx_legacy_intr_set *nx_legacy_intr;
2268
2269        /* ISP 8021 initializations */
2270        rwlock_init(&ha->hw_lock);
2271        ha->qdr_sn_window = -1;
2272        ha->ddr_mn_window = -1;
2273        ha->curr_window = 255;
2274        ha->portnum = PCI_FUNC(ha->pdev->devfn);
2275        nx_legacy_intr = &legacy_intr[ha->portnum];
2276        ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit;
2277        ha->nx_legacy_intr.tgt_status_reg = nx_legacy_intr->tgt_status_reg;
2278        ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg;
2279        ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg;
2280}
2281
2282inline void
2283qla82xx_set_idc_version(scsi_qla_host_t *vha)
2284{
2285        int idc_ver;
2286        uint32_t drv_active;
2287        struct qla_hw_data *ha = vha->hw;
2288
2289        drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2290        if (drv_active == (QLA82XX_DRV_ACTIVE << (ha->portnum * 4))) {
2291                qla82xx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION,
2292                    QLA82XX_IDC_VERSION);
2293                ql_log(ql_log_info, vha, 0xb082,
2294                    "IDC version updated to %d\n", QLA82XX_IDC_VERSION);
2295        } else {
2296                idc_ver = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_IDC_VERSION);
2297                if (idc_ver != QLA82XX_IDC_VERSION)
2298                        ql_log(ql_log_info, vha, 0xb083,
2299                            "qla2xxx driver IDC version %d is not compatible "
2300                            "with IDC version %d of the other drivers\n",
2301                            QLA82XX_IDC_VERSION, idc_ver);
2302        }
2303}
2304
2305inline void
2306qla82xx_set_drv_active(scsi_qla_host_t *vha)
2307{
2308        uint32_t drv_active;
2309        struct qla_hw_data *ha = vha->hw;
2310
2311        drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2312
2313        /* If reset value is all FF's, initialize DRV_ACTIVE */
2314        if (drv_active == 0xffffffff) {
2315                qla82xx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE,
2316                        QLA82XX_DRV_NOT_ACTIVE);
2317                drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2318        }
2319        drv_active |= (QLA82XX_DRV_ACTIVE << (ha->portnum * 4));
2320        qla82xx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE, drv_active);
2321}
2322
2323inline void
2324qla82xx_clear_drv_active(struct qla_hw_data *ha)
2325{
2326        uint32_t drv_active;
2327
2328        drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2329        drv_active &= ~(QLA82XX_DRV_ACTIVE << (ha->portnum * 4));
2330        qla82xx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE, drv_active);
2331}
2332
2333static inline int
2334qla82xx_need_reset(struct qla_hw_data *ha)
2335{
2336        uint32_t drv_state;
2337        int rval;
2338
2339        if (ha->flags.nic_core_reset_owner)
2340                return 1;
2341        else {
2342                drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2343                rval = drv_state & (QLA82XX_DRVST_RST_RDY << (ha->portnum * 4));
2344                return rval;
2345        }
2346}
2347
2348static inline void
2349qla82xx_set_rst_ready(struct qla_hw_data *ha)
2350{
2351        uint32_t drv_state;
2352        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2353
2354        drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2355
2356        /* If reset value is all FF's, initialize DRV_STATE */
2357        if (drv_state == 0xffffffff) {
2358                qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, QLA82XX_DRVST_NOT_RDY);
2359                drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2360        }
2361        drv_state |= (QLA82XX_DRVST_RST_RDY << (ha->portnum * 4));
2362        ql_dbg(ql_dbg_init, vha, 0x00bb,
2363            "drv_state = 0x%08x.\n", drv_state);
2364        qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, drv_state);
2365}
2366
2367static inline void
2368qla82xx_clear_rst_ready(struct qla_hw_data *ha)
2369{
2370        uint32_t drv_state;
2371
2372        drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2373        drv_state &= ~(QLA82XX_DRVST_RST_RDY << (ha->portnum * 4));
2374        qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, drv_state);
2375}
2376
2377static inline void
2378qla82xx_set_qsnt_ready(struct qla_hw_data *ha)
2379{
2380        uint32_t qsnt_state;
2381
2382        qsnt_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2383        qsnt_state |= (QLA82XX_DRVST_QSNT_RDY << (ha->portnum * 4));
2384        qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, qsnt_state);
2385}
2386
2387void
2388qla82xx_clear_qsnt_ready(scsi_qla_host_t *vha)
2389{
2390        struct qla_hw_data *ha = vha->hw;
2391        uint32_t qsnt_state;
2392
2393        qsnt_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2394        qsnt_state &= ~(QLA82XX_DRVST_QSNT_RDY << (ha->portnum * 4));
2395        qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, qsnt_state);
2396}
2397
2398static int
2399qla82xx_load_fw(scsi_qla_host_t *vha)
2400{
2401        int rst;
2402        struct fw_blob *blob;
2403        struct qla_hw_data *ha = vha->hw;
2404
2405        if (qla82xx_pinit_from_rom(vha) != QLA_SUCCESS) {
2406                ql_log(ql_log_fatal, vha, 0x009f,
2407                    "Error during CRB initialization.\n");
2408                return QLA_FUNCTION_FAILED;
2409        }
2410        udelay(500);
2411
2412        /* Bring QM and CAMRAM out of reset */
2413        rst = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET);
2414        rst &= ~((1 << 28) | (1 << 24));
2415        qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, rst);
2416
2417        /*
2418         * FW Load priority:
2419         * 1) Operational firmware residing in flash.
2420         * 2) Firmware via request-firmware interface (.bin file).
2421         */
2422        if (ql2xfwloadbin == 2)
2423                goto try_blob_fw;
2424
2425        ql_log(ql_log_info, vha, 0x00a0,
2426            "Attempting to load firmware from flash.\n");
2427
2428        if (qla82xx_fw_load_from_flash(ha) == QLA_SUCCESS) {
2429                ql_log(ql_log_info, vha, 0x00a1,
2430                    "Firmware loaded successfully from flash.\n");
2431                return QLA_SUCCESS;
2432        } else {
2433                ql_log(ql_log_warn, vha, 0x0108,
2434                    "Firmware load from flash failed.\n");
2435        }
2436
2437try_blob_fw:
2438        ql_log(ql_log_info, vha, 0x00a2,
2439            "Attempting to load firmware from blob.\n");
2440
2441        /* Load firmware blob. */
2442        blob = ha->hablob = qla2x00_request_firmware(vha);
2443        if (!blob) {
2444                ql_log(ql_log_fatal, vha, 0x00a3,
2445                    "Firmware image not present.\n");
2446                goto fw_load_failed;
2447        }
2448
2449        /* Validating firmware blob */
2450        if (qla82xx_validate_firmware_blob(vha,
2451                QLA82XX_FLASH_ROMIMAGE)) {
2452                /* Fallback to URI format */
2453                if (qla82xx_validate_firmware_blob(vha,
2454                        QLA82XX_UNIFIED_ROMIMAGE)) {
2455                        ql_log(ql_log_fatal, vha, 0x00a4,
2456                            "No valid firmware image found.\n");
2457                        return QLA_FUNCTION_FAILED;
2458                }
2459        }
2460
2461        if (qla82xx_fw_load_from_blob(ha) == QLA_SUCCESS) {
2462                ql_log(ql_log_info, vha, 0x00a5,
2463                    "Firmware loaded successfully from binary blob.\n");
2464                return QLA_SUCCESS;
2465        } else {
2466                ql_log(ql_log_fatal, vha, 0x00a6,
2467                    "Firmware load failed for binary blob.\n");
2468                blob->fw = NULL;
2469                blob = NULL;
2470                goto fw_load_failed;
2471        }
2472        return QLA_SUCCESS;
2473
2474fw_load_failed:
2475        return QLA_FUNCTION_FAILED;
2476}
2477
2478int
2479qla82xx_start_firmware(scsi_qla_host_t *vha)
2480{
2481        uint16_t      lnk;
2482        struct qla_hw_data *ha = vha->hw;
2483
2484        /* scrub dma mask expansion register */
2485        qla82xx_wr_32(ha, CRB_DMA_SHIFT, QLA82XX_DMA_SHIFT_VALUE);
2486
2487        /* Put both the PEG CMD and RCV PEG to default state
2488         * of 0 before resetting the hardware
2489         */
2490        qla82xx_wr_32(ha, CRB_CMDPEG_STATE, 0);
2491        qla82xx_wr_32(ha, CRB_RCVPEG_STATE, 0);
2492
2493        /* Overwrite stale initialization register values */
2494        qla82xx_wr_32(ha, QLA82XX_PEG_HALT_STATUS1, 0);
2495        qla82xx_wr_32(ha, QLA82XX_PEG_HALT_STATUS2, 0);
2496
2497        if (qla82xx_load_fw(vha) != QLA_SUCCESS) {
2498                ql_log(ql_log_fatal, vha, 0x00a7,
2499                    "Error trying to start fw.\n");
2500                return QLA_FUNCTION_FAILED;
2501        }
2502
2503        /* Handshake with the card before we register the devices. */
2504        if (qla82xx_check_cmdpeg_state(ha) != QLA_SUCCESS) {
2505                ql_log(ql_log_fatal, vha, 0x00aa,
2506                    "Error during card handshake.\n");
2507                return QLA_FUNCTION_FAILED;
2508        }
2509
2510        /* Negotiated Link width */
2511        pcie_capability_read_word(ha->pdev, PCI_EXP_LNKSTA, &lnk);
2512        ha->link_width = (lnk >> 4) & 0x3f;
2513
2514        /* Synchronize with Receive peg */
2515        return qla82xx_check_rcvpeg_state(ha);
2516}
2517
2518static uint32_t *
2519qla82xx_read_flash_data(scsi_qla_host_t *vha, uint32_t *dwptr, uint32_t faddr,
2520        uint32_t length)
2521{
2522        uint32_t i;
2523        uint32_t val;
2524        struct qla_hw_data *ha = vha->hw;
2525
2526        /* Dword reads to flash. */
2527        for (i = 0; i < length/4; i++, faddr += 4) {
2528                if (qla82xx_rom_fast_read(ha, faddr, &val)) {
2529                        ql_log(ql_log_warn, vha, 0x0106,
2530                            "Do ROM fast read failed.\n");
2531                        goto done_read;
2532                }
2533                dwptr[i] = __constant_cpu_to_le32(val);
2534        }
2535done_read:
2536        return dwptr;
2537}
2538
2539static int
2540qla82xx_unprotect_flash(struct qla_hw_data *ha)
2541{
2542        int ret;
2543        uint32_t val;
2544        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2545
2546        ret = ql82xx_rom_lock_d(ha);
2547        if (ret < 0) {
2548                ql_log(ql_log_warn, vha, 0xb014,
2549                    "ROM Lock failed.\n");
2550                return ret;
2551        }
2552
2553        ret = qla82xx_read_status_reg(ha, &val);
2554        if (ret < 0)
2555                goto done_unprotect;
2556
2557        val &= ~(BLOCK_PROTECT_BITS << 2);
2558        ret = qla82xx_write_status_reg(ha, val);
2559        if (ret < 0) {
2560                val |= (BLOCK_PROTECT_BITS << 2);
2561                qla82xx_write_status_reg(ha, val);
2562        }
2563
2564        if (qla82xx_write_disable_flash(ha) != 0)
2565                ql_log(ql_log_warn, vha, 0xb015,
2566                    "Write disable failed.\n");
2567
2568done_unprotect:
2569        qla82xx_rom_unlock(ha);
2570        return ret;
2571}
2572
2573static int
2574qla82xx_protect_flash(struct qla_hw_data *ha)
2575{
2576        int ret;
2577        uint32_t val;
2578        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2579
2580        ret = ql82xx_rom_lock_d(ha);
2581        if (ret < 0) {
2582                ql_log(ql_log_warn, vha, 0xb016,
2583                    "ROM Lock failed.\n");
2584                return ret;
2585        }
2586
2587        ret = qla82xx_read_status_reg(ha, &val);
2588        if (ret < 0)
2589                goto done_protect;
2590
2591        val |= (BLOCK_PROTECT_BITS << 2);
2592        /* LOCK all sectors */
2593        ret = qla82xx_write_status_reg(ha, val);
2594        if (ret < 0)
2595                ql_log(ql_log_warn, vha, 0xb017,
2596                    "Write status register failed.\n");
2597
2598        if (qla82xx_write_disable_flash(ha) != 0)
2599                ql_log(ql_log_warn, vha, 0xb018,
2600                    "Write disable failed.\n");
2601done_protect:
2602        qla82xx_rom_unlock(ha);
2603        return ret;
2604}
2605
2606static int
2607qla82xx_erase_sector(struct qla_hw_data *ha, int addr)
2608{
2609        int ret = 0;
2610        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2611
2612        ret = ql82xx_rom_lock_d(ha);
2613        if (ret < 0) {
2614                ql_log(ql_log_warn, vha, 0xb019,
2615                    "ROM Lock failed.\n");
2616                return ret;
2617        }
2618
2619        qla82xx_flash_set_write_enable(ha);
2620        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ADDRESS, addr);
2621        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 3);
2622        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_SE);
2623
2624        if (qla82xx_wait_rom_done(ha)) {
2625                ql_log(ql_log_warn, vha, 0xb01a,
2626                    "Error waiting for rom done.\n");
2627                ret = -1;
2628                goto done;
2629        }
2630        ret = qla82xx_flash_wait_write_finish(ha);
2631done:
2632        qla82xx_rom_unlock(ha);
2633        return ret;
2634}
2635
2636/*
2637 * Address and length are byte address
2638 */
2639uint8_t *
2640qla82xx_read_optrom_data(struct scsi_qla_host *vha, uint8_t *buf,
2641        uint32_t offset, uint32_t length)
2642{
2643        scsi_block_requests(vha->host);
2644        qla82xx_read_flash_data(vha, (uint32_t *)buf, offset, length);
2645        scsi_unblock_requests(vha->host);
2646        return buf;
2647}
2648
2649static int
2650qla82xx_write_flash_data(struct scsi_qla_host *vha, uint32_t *dwptr,
2651        uint32_t faddr, uint32_t dwords)
2652{
2653        int ret;
2654        uint32_t liter;
2655        uint32_t sec_mask, rest_addr;
2656        dma_addr_t optrom_dma;
2657        void *optrom = NULL;
2658        int page_mode = 0;
2659        struct qla_hw_data *ha = vha->hw;
2660
2661        ret = -1;
2662
2663        /* Prepare burst-capable write on supported ISPs. */
2664        if (page_mode && !(faddr & 0xfff) &&
2665            dwords > OPTROM_BURST_DWORDS) {
2666                optrom = dma_alloc_coherent(&ha->pdev->dev, OPTROM_BURST_SIZE,
2667                    &optrom_dma, GFP_KERNEL);
2668                if (!optrom) {
2669                        ql_log(ql_log_warn, vha, 0xb01b,
2670                            "Unable to allocate memory "
2671                            "for optrom burst write (%x KB).\n",
2672                            OPTROM_BURST_SIZE / 1024);
2673                }
2674        }
2675
2676        rest_addr = ha->fdt_block_size - 1;
2677        sec_mask = ~rest_addr;
2678
2679        ret = qla82xx_unprotect_flash(ha);
2680        if (ret) {
2681                ql_log(ql_log_warn, vha, 0xb01c,
2682                    "Unable to unprotect flash for update.\n");
2683                goto write_done;
2684        }
2685
2686        for (liter = 0; liter < dwords; liter++, faddr += 4, dwptr++) {
2687                /* Are we at the beginning of a sector? */
2688                if ((faddr & rest_addr) == 0) {
2689
2690                        ret = qla82xx_erase_sector(ha, faddr);
2691                        if (ret) {
2692                                ql_log(ql_log_warn, vha, 0xb01d,
2693                                    "Unable to erase sector: address=%x.\n",
2694                                    faddr);
2695                                break;
2696                        }
2697                }
2698
2699                /* Go with burst-write. */
2700                if (optrom && (liter + OPTROM_BURST_DWORDS) <= dwords) {
2701                        /* Copy data to DMA'ble buffer. */
2702                        memcpy(optrom, dwptr, OPTROM_BURST_SIZE);
2703
2704                        ret = qla2x00_load_ram(vha, optrom_dma,
2705                            (ha->flash_data_off | faddr),
2706                            OPTROM_BURST_DWORDS);
2707                        if (ret != QLA_SUCCESS) {
2708                                ql_log(ql_log_warn, vha, 0xb01e,
2709                                    "Unable to burst-write optrom segment "
2710                                    "(%x/%x/%llx).\n", ret,
2711                                    (ha->flash_data_off | faddr),
2712                                    (unsigned long long)optrom_dma);
2713                                ql_log(ql_log_warn, vha, 0xb01f,
2714                                    "Reverting to slow-write.\n");
2715
2716                                dma_free_coherent(&ha->pdev->dev,
2717                                    OPTROM_BURST_SIZE, optrom, optrom_dma);
2718                                optrom = NULL;
2719                        } else {
2720                                liter += OPTROM_BURST_DWORDS - 1;
2721                                faddr += OPTROM_BURST_DWORDS - 1;
2722                                dwptr += OPTROM_BURST_DWORDS - 1;
2723                                continue;
2724                        }
2725                }
2726
2727                ret = qla82xx_write_flash_dword(ha, faddr,
2728                    cpu_to_le32(*dwptr));
2729                if (ret) {
2730                        ql_dbg(ql_dbg_p3p, vha, 0xb020,
2731                            "Unable to program flash address=%x data=%x.\n",
2732                            faddr, *dwptr);
2733                        break;
2734                }
2735        }
2736
2737        ret = qla82xx_protect_flash(ha);
2738        if (ret)
2739                ql_log(ql_log_warn, vha, 0xb021,
2740                    "Unable to protect flash after update.\n");
2741write_done:
2742        if (optrom)
2743                dma_free_coherent(&ha->pdev->dev,
2744                    OPTROM_BURST_SIZE, optrom, optrom_dma);
2745        return ret;
2746}
2747
2748int
2749qla82xx_write_optrom_data(struct scsi_qla_host *vha, uint8_t *buf,
2750        uint32_t offset, uint32_t length)
2751{
2752        int rval;
2753
2754        /* Suspend HBA. */
2755        scsi_block_requests(vha->host);
2756        rval = qla82xx_write_flash_data(vha, (uint32_t *)buf, offset,
2757                length >> 2);
2758        scsi_unblock_requests(vha->host);
2759
2760        /* Convert return ISP82xx to generic */
2761        if (rval)
2762                rval = QLA_FUNCTION_FAILED;
2763        else
2764                rval = QLA_SUCCESS;
2765        return rval;
2766}
2767
2768void
2769qla82xx_start_iocbs(scsi_qla_host_t *vha)
2770{
2771        struct qla_hw_data *ha = vha->hw;
2772        struct req_que *req = ha->req_q_map[0];
2773        struct device_reg_82xx __iomem *reg;
2774        uint32_t dbval;
2775
2776        /* Adjust ring index. */
2777        req->ring_index++;
2778        if (req->ring_index == req->length) {
2779                req->ring_index = 0;
2780                req->ring_ptr = req->ring;
2781        } else
2782                req->ring_ptr++;
2783
2784        reg = &ha->iobase->isp82;
2785        dbval = 0x04 | (ha->portnum << 5);
2786
2787        dbval = dbval | (req->id << 8) | (req->ring_index << 16);
2788        if (ql2xdbwr)
2789                qla82xx_wr_32(ha, ha->nxdb_wr_ptr, dbval);
2790        else {
2791                WRT_REG_DWORD((unsigned long __iomem *)ha->nxdb_wr_ptr, dbval);
2792                wmb();
2793                while (RD_REG_DWORD((void __iomem *)ha->nxdb_rd_ptr) != dbval) {
2794                        WRT_REG_DWORD((unsigned long  __iomem *)ha->nxdb_wr_ptr,
2795                                dbval);
2796                        wmb();
2797                }
2798        }
2799}
2800
2801static void
2802qla82xx_rom_lock_recovery(struct qla_hw_data *ha)
2803{
2804        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2805
2806        if (qla82xx_rom_lock(ha))
2807                /* Someone else is holding the lock. */
2808                ql_log(ql_log_info, vha, 0xb022,
2809                    "Resetting rom_lock.\n");
2810
2811        /*
2812         * Either we got the lock, or someone
2813         * else died while holding it.
2814         * In either case, unlock.
2815         */
2816        qla82xx_rom_unlock(ha);
2817}
2818
2819/*
2820 * qla82xx_device_bootstrap
2821 *    Initialize device, set DEV_READY, start fw
2822 *
2823 * Note:
2824 *      IDC lock must be held upon entry
2825 *
2826 * Return:
2827 *    Success : 0
2828 *    Failed  : 1
2829 */
2830static int
2831qla82xx_device_bootstrap(scsi_qla_host_t *vha)
2832{
2833        int rval = QLA_SUCCESS;
2834        int i, timeout;
2835        uint32_t old_count, count;
2836        struct qla_hw_data *ha = vha->hw;
2837        int need_reset = 0, peg_stuck = 1;
2838
2839        need_reset = qla82xx_need_reset(ha);
2840
2841        old_count = qla82xx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER);
2842
2843        for (i = 0; i < 10; i++) {
2844                timeout = msleep_interruptible(200);
2845                if (timeout) {
2846                        qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
2847                                QLA8XXX_DEV_FAILED);
2848                        return QLA_FUNCTION_FAILED;
2849                }
2850
2851                count = qla82xx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER);
2852                if (count != old_count)
2853                        peg_stuck = 0;
2854        }
2855
2856        if (need_reset) {
2857                /* We are trying to perform a recovery here. */
2858                if (peg_stuck)
2859                        qla82xx_rom_lock_recovery(ha);
2860                goto dev_initialize;
2861        } else  {
2862                /* Start of day for this ha context. */
2863                if (peg_stuck) {
2864                        /* Either we are the first or recovery in progress. */
2865                        qla82xx_rom_lock_recovery(ha);
2866                        goto dev_initialize;
2867                } else
2868                        /* Firmware already running. */
2869                        goto dev_ready;
2870        }
2871
2872        return rval;
2873
2874dev_initialize:
2875        /* set to DEV_INITIALIZING */
2876        ql_log(ql_log_info, vha, 0x009e,
2877            "HW State: INITIALIZING.\n");
2878        qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_INITIALIZING);
2879
2880        qla82xx_idc_unlock(ha);
2881        rval = qla82xx_start_firmware(vha);
2882        qla82xx_idc_lock(ha);
2883
2884        if (rval != QLA_SUCCESS) {
2885                ql_log(ql_log_fatal, vha, 0x00ad,
2886                    "HW State: FAILED.\n");
2887                qla82xx_clear_drv_active(ha);
2888                qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_FAILED);
2889                return rval;
2890        }
2891
2892dev_ready:
2893        ql_log(ql_log_info, vha, 0x00ae,
2894            "HW State: READY.\n");
2895        qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_READY);
2896
2897        return QLA_SUCCESS;
2898}
2899
2900/*
2901* qla82xx_need_qsnt_handler
2902*    Code to start quiescence sequence
2903*
2904* Note:
2905*      IDC lock must be held upon entry
2906*
2907* Return: void
2908*/
2909
2910static void
2911qla82xx_need_qsnt_handler(scsi_qla_host_t *vha)
2912{
2913        struct qla_hw_data *ha = vha->hw;
2914        uint32_t dev_state, drv_state, drv_active;
2915        unsigned long reset_timeout;
2916
2917        if (vha->flags.online) {
2918                /*Block any further I/O and wait for pending cmnds to complete*/
2919                qla2x00_quiesce_io(vha);
2920        }
2921
2922        /* Set the quiescence ready bit */
2923        qla82xx_set_qsnt_ready(ha);
2924
2925        /*wait for 30 secs for other functions to ack */
2926        reset_timeout = jiffies + (30 * HZ);
2927
2928        drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2929        drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2930        /* Its 2 that is written when qsnt is acked, moving one bit */
2931        drv_active = drv_active << 0x01;
2932
2933        while (drv_state != drv_active) {
2934
2935                if (time_after_eq(jiffies, reset_timeout)) {
2936                        /* quiescence timeout, other functions didn't ack
2937                         * changing the state to DEV_READY
2938                         */
2939                        ql_log(ql_log_info, vha, 0xb023,
2940                            "%s : QUIESCENT TIMEOUT DRV_ACTIVE:%d "
2941                            "DRV_STATE:%d.\n", QLA2XXX_DRIVER_NAME,
2942                            drv_active, drv_state);
2943                        qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
2944                            QLA8XXX_DEV_READY);
2945                        ql_log(ql_log_info, vha, 0xb025,
2946                            "HW State: DEV_READY.\n");
2947                        qla82xx_idc_unlock(ha);
2948                        qla2x00_perform_loop_resync(vha);
2949                        qla82xx_idc_lock(ha);
2950
2951                        qla82xx_clear_qsnt_ready(vha);
2952                        return;
2953                }
2954
2955                qla82xx_idc_unlock(ha);
2956                msleep(1000);
2957                qla82xx_idc_lock(ha);
2958
2959                drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2960                drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2961                drv_active = drv_active << 0x01;
2962        }
2963        dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
2964        /* everyone acked so set the state to DEV_QUIESCENCE */
2965        if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT) {
2966                ql_log(ql_log_info, vha, 0xb026,
2967                    "HW State: DEV_QUIESCENT.\n");
2968                qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_QUIESCENT);
2969        }
2970}
2971
2972/*
2973* qla82xx_wait_for_state_change
2974*    Wait for device state to change from given current state
2975*
2976* Note:
2977*     IDC lock must not be held upon entry
2978*
2979* Return:
2980*    Changed device state.
2981*/
2982uint32_t
2983qla82xx_wait_for_state_change(scsi_qla_host_t *vha, uint32_t curr_state)
2984{
2985        struct qla_hw_data *ha = vha->hw;
2986        uint32_t dev_state;
2987
2988        do {
2989                msleep(1000);
2990                qla82xx_idc_lock(ha);
2991                dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
2992                qla82xx_idc_unlock(ha);
2993        } while (dev_state == curr_state);
2994
2995        return dev_state;
2996}
2997
2998void
2999qla8xxx_dev_failed_handler(scsi_qla_host_t *vha)
3000{
3001        struct qla_hw_data *ha = vha->hw;
3002
3003        /* Disable the board */
3004        ql_log(ql_log_fatal, vha, 0x00b8,
3005            "Disabling the board.\n");
3006
3007        if (IS_QLA82XX(ha)) {
3008                qla82xx_clear_drv_active(ha);
3009                qla82xx_idc_unlock(ha);
3010        }
3011
3012        /* Set DEV_FAILED flag to disable timer */
3013        vha->device_flags |= DFLG_DEV_FAILED;
3014        qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
3015        qla2x00_mark_all_devices_lost(vha, 0);
3016        vha->flags.online = 0;
3017        vha->flags.init_done = 0;
3018}
3019
3020/*
3021 * qla82xx_need_reset_handler
3022 *    Code to start reset sequence
3023 *
3024 * Note:
3025 *      IDC lock must be held upon entry
3026 *
3027 * Return:
3028 *    Success : 0
3029 *    Failed  : 1
3030 */
3031static void
3032qla82xx_need_reset_handler(scsi_qla_host_t *vha)
3033{
3034        uint32_t dev_state, drv_state, drv_active;
3035        uint32_t active_mask = 0;
3036        unsigned long reset_timeout;
3037        struct qla_hw_data *ha = vha->hw;
3038        struct req_que *req = ha->req_q_map[0];
3039
3040        if (vha->flags.online) {
3041                qla82xx_idc_unlock(ha);
3042                qla2x00_abort_isp_cleanup(vha);
3043                ha->isp_ops->get_flash_version(vha, req->ring);
3044                ha->isp_ops->nvram_config(vha);
3045                qla82xx_idc_lock(ha);
3046        }
3047
3048        drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3049        if (!ha->flags.nic_core_reset_owner) {
3050                ql_dbg(ql_dbg_p3p, vha, 0xb028,
3051                    "reset_acknowledged by 0x%x\n", ha->portnum);
3052                qla82xx_set_rst_ready(ha);
3053        } else {
3054                active_mask = ~(QLA82XX_DRV_ACTIVE << (ha->portnum * 4));
3055                drv_active &= active_mask;
3056                ql_dbg(ql_dbg_p3p, vha, 0xb029,
3057                    "active_mask: 0x%08x\n", active_mask);
3058        }
3059
3060        /* wait for 10 seconds for reset ack from all functions */
3061        reset_timeout = jiffies + (ha->fcoe_reset_timeout * HZ);
3062
3063        drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
3064        drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3065        dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3066
3067        ql_dbg(ql_dbg_p3p, vha, 0xb02a,
3068            "drv_state: 0x%08x, drv_active: 0x%08x, "
3069            "dev_state: 0x%08x, active_mask: 0x%08x\n",
3070            drv_state, drv_active, dev_state, active_mask);
3071
3072        while (drv_state != drv_active &&
3073            dev_state != QLA8XXX_DEV_INITIALIZING) {
3074                if (time_after_eq(jiffies, reset_timeout)) {
3075                        ql_log(ql_log_warn, vha, 0x00b5,
3076                            "Reset timeout.\n");
3077                        break;
3078                }
3079                qla82xx_idc_unlock(ha);
3080                msleep(1000);
3081                qla82xx_idc_lock(ha);
3082                drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
3083                drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3084                if (ha->flags.nic_core_reset_owner)
3085                        drv_active &= active_mask;
3086                dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3087        }
3088
3089        ql_dbg(ql_dbg_p3p, vha, 0xb02b,
3090            "drv_state: 0x%08x, drv_active: 0x%08x, "
3091            "dev_state: 0x%08x, active_mask: 0x%08x\n",
3092            drv_state, drv_active, dev_state, active_mask);
3093
3094        ql_log(ql_log_info, vha, 0x00b6,
3095            "Device state is 0x%x = %s.\n",
3096            dev_state,
3097            dev_state < MAX_STATES ? qdev_state(dev_state) : "Unknown");
3098
3099        /* Force to DEV_COLD unless someone else is starting a reset */
3100        if (dev_state != QLA8XXX_DEV_INITIALIZING &&
3101            dev_state != QLA8XXX_DEV_COLD) {
3102                ql_log(ql_log_info, vha, 0x00b7,
3103                    "HW State: COLD/RE-INIT.\n");
3104                qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_COLD);
3105                qla82xx_set_rst_ready(ha);
3106                if (ql2xmdenable) {
3107                        if (qla82xx_md_collect(vha))
3108                                ql_log(ql_log_warn, vha, 0xb02c,
3109                                    "Minidump not collected.\n");
3110                } else
3111                        ql_log(ql_log_warn, vha, 0xb04f,
3112                            "Minidump disabled.\n");
3113        }
3114}
3115
3116int
3117qla82xx_check_md_needed(scsi_qla_host_t *vha)
3118{
3119        struct qla_hw_data *ha = vha->hw;
3120        uint16_t fw_major_version, fw_minor_version, fw_subminor_version;
3121        int rval = QLA_SUCCESS;
3122
3123        fw_major_version = ha->fw_major_version;
3124        fw_minor_version = ha->fw_minor_version;
3125        fw_subminor_version = ha->fw_subminor_version;
3126
3127        rval = qla2x00_get_fw_version(vha);
3128        if (rval != QLA_SUCCESS)
3129                return rval;
3130
3131        if (ql2xmdenable) {
3132                if (!ha->fw_dumped) {
3133                        if (fw_major_version != ha->fw_major_version ||
3134                            fw_minor_version != ha->fw_minor_version ||
3135                            fw_subminor_version != ha->fw_subminor_version) {
3136                                ql_log(ql_log_info, vha, 0xb02d,
3137                                    "Firmware version differs "
3138                                    "Previous version: %d:%d:%d - "
3139                                    "New version: %d:%d:%d\n",
3140                                    fw_major_version, fw_minor_version,
3141                                    fw_subminor_version,
3142                                    ha->fw_major_version,
3143                                    ha->fw_minor_version,
3144                                    ha->fw_subminor_version);
3145                                /* Release MiniDump resources */
3146                                qla82xx_md_free(vha);
3147                                /* ALlocate MiniDump resources */
3148                                qla82xx_md_prep(vha);
3149                        }
3150                } else
3151                        ql_log(ql_log_info, vha, 0xb02e,
3152                            "Firmware dump available to retrieve\n");
3153        }
3154        return rval;
3155}
3156
3157
3158static int
3159qla82xx_check_fw_alive(scsi_qla_host_t *vha)
3160{
3161        uint32_t fw_heartbeat_counter;
3162        int status = 0;
3163
3164        fw_heartbeat_counter = qla82xx_rd_32(vha->hw,
3165                QLA82XX_PEG_ALIVE_COUNTER);
3166        /* all 0xff, assume AER/EEH in progress, ignore */
3167        if (fw_heartbeat_counter == 0xffffffff) {
3168                ql_dbg(ql_dbg_timer, vha, 0x6003,
3169                    "FW heartbeat counter is 0xffffffff, "
3170                    "returning status=%d.\n", status);
3171                return status;
3172        }
3173        if (vha->fw_heartbeat_counter == fw_heartbeat_counter) {
3174                vha->seconds_since_last_heartbeat++;
3175                /* FW not alive after 2 seconds */
3176                if (vha->seconds_since_last_heartbeat == 2) {
3177                        vha->seconds_since_last_heartbeat = 0;
3178                        status = 1;
3179                }
3180        } else
3181                vha->seconds_since_last_heartbeat = 0;
3182        vha->fw_heartbeat_counter = fw_heartbeat_counter;
3183        if (status)
3184                ql_dbg(ql_dbg_timer, vha, 0x6004,
3185                    "Returning status=%d.\n", status);
3186        return status;
3187}
3188
3189/*
3190 * qla82xx_device_state_handler
3191 *      Main state handler
3192 *
3193 * Note:
3194 *      IDC lock must be held upon entry
3195 *
3196 * Return:
3197 *    Success : 0
3198 *    Failed  : 1
3199 */
3200int
3201qla82xx_device_state_handler(scsi_qla_host_t *vha)
3202{
3203        uint32_t dev_state;
3204        uint32_t old_dev_state;
3205        int rval = QLA_SUCCESS;
3206        unsigned long dev_init_timeout;
3207        struct qla_hw_data *ha = vha->hw;
3208        int loopcount = 0;
3209
3210        qla82xx_idc_lock(ha);
3211        if (!vha->flags.init_done) {
3212                qla82xx_set_drv_active(vha);
3213                qla82xx_set_idc_version(vha);
3214        }
3215
3216        dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3217        old_dev_state = dev_state;
3218        ql_log(ql_log_info, vha, 0x009b,
3219            "Device state is 0x%x = %s.\n",
3220            dev_state,
3221            dev_state < MAX_STATES ? qdev_state(dev_state) : "Unknown");
3222
3223        /* wait for 30 seconds for device to go ready */
3224        dev_init_timeout = jiffies + (ha->fcoe_dev_init_timeout * HZ);
3225
3226        while (1) {
3227
3228                if (time_after_eq(jiffies, dev_init_timeout)) {
3229                        ql_log(ql_log_fatal, vha, 0x009c,
3230                            "Device init failed.\n");
3231                        rval = QLA_FUNCTION_FAILED;
3232                        break;
3233                }
3234                dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3235                if (old_dev_state != dev_state) {
3236                        loopcount = 0;
3237                        old_dev_state = dev_state;
3238                }
3239                if (loopcount < 5) {
3240                        ql_log(ql_log_info, vha, 0x009d,
3241                            "Device state is 0x%x = %s.\n",
3242                            dev_state,
3243                            dev_state < MAX_STATES ? qdev_state(dev_state) :
3244                            "Unknown");
3245                }
3246
3247                switch (dev_state) {
3248                case QLA8XXX_DEV_READY:
3249                        ha->flags.nic_core_reset_owner = 0;
3250                        goto rel_lock;
3251                case QLA8XXX_DEV_COLD:
3252                        rval = qla82xx_device_bootstrap(vha);
3253                        break;
3254                case QLA8XXX_DEV_INITIALIZING:
3255                        qla82xx_idc_unlock(ha);
3256                        msleep(1000);
3257                        qla82xx_idc_lock(ha);
3258                        break;
3259                case QLA8XXX_DEV_NEED_RESET:
3260                        if (!ql2xdontresethba)
3261                                qla82xx_need_reset_handler(vha);
3262                        else {
3263                                qla82xx_idc_unlock(ha);
3264                                msleep(1000);
3265                                qla82xx_idc_lock(ha);
3266                        }
3267                        dev_init_timeout = jiffies +
3268                            (ha->fcoe_dev_init_timeout * HZ);
3269                        break;
3270                case QLA8XXX_DEV_NEED_QUIESCENT:
3271                        qla82xx_need_qsnt_handler(vha);
3272                        /* Reset timeout value after quiescence handler */
3273                        dev_init_timeout = jiffies + (ha->fcoe_dev_init_timeout\
3274                                                         * HZ);
3275                        break;
3276                case QLA8XXX_DEV_QUIESCENT:
3277                        /* Owner will exit and other will wait for the state
3278                         * to get changed
3279                         */
3280                        if (ha->flags.quiesce_owner)
3281                                goto rel_lock;
3282
3283                        qla82xx_idc_unlock(ha);
3284                        msleep(1000);
3285                        qla82xx_idc_lock(ha);
3286
3287                        /* Reset timeout value after quiescence handler */
3288                        dev_init_timeout = jiffies + (ha->fcoe_dev_init_timeout\
3289                                                         * HZ);
3290                        break;
3291                case QLA8XXX_DEV_FAILED:
3292                        qla8xxx_dev_failed_handler(vha);
3293                        rval = QLA_FUNCTION_FAILED;
3294                        goto exit;
3295                default:
3296                        qla82xx_idc_unlock(ha);
3297                        msleep(1000);
3298                        qla82xx_idc_lock(ha);
3299                }
3300                loopcount++;
3301        }
3302rel_lock:
3303        qla82xx_idc_unlock(ha);
3304exit:
3305        return rval;
3306}
3307
3308static int qla82xx_check_temp(scsi_qla_host_t *vha)
3309{
3310        uint32_t temp, temp_state, temp_val;
3311        struct qla_hw_data *ha = vha->hw;
3312
3313        temp = qla82xx_rd_32(ha, CRB_TEMP_STATE);
3314        temp_state = qla82xx_get_temp_state(temp);
3315        temp_val = qla82xx_get_temp_val(temp);
3316
3317        if (temp_state == QLA82XX_TEMP_PANIC) {
3318                ql_log(ql_log_warn, vha, 0x600e,
3319                    "Device temperature %d degrees C exceeds "
3320                    " maximum allowed. Hardware has been shut down.\n",
3321                    temp_val);
3322                return 1;
3323        } else if (temp_state == QLA82XX_TEMP_WARN) {
3324                ql_log(ql_log_warn, vha, 0x600f,
3325                    "Device temperature %d degrees C exceeds "
3326                    "operating range. Immediate action needed.\n",
3327                    temp_val);
3328        }
3329        return 0;
3330}
3331
3332void qla82xx_clear_pending_mbx(scsi_qla_host_t *vha)
3333{
3334        struct qla_hw_data *ha = vha->hw;
3335
3336        if (ha->flags.mbox_busy) {
3337                ha->flags.mbox_int = 1;
3338                ha->flags.mbox_busy = 0;
3339                ql_log(ql_log_warn, vha, 0x6010,
3340                    "Doing premature completion of mbx command.\n");
3341                if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags))
3342                        complete(&ha->mbx_intr_comp);
3343        }
3344}
3345
3346void qla82xx_watchdog(scsi_qla_host_t *vha)
3347{
3348        uint32_t dev_state, halt_status;
3349        struct qla_hw_data *ha = vha->hw;
3350
3351        /* don't poll if reset is going on */
3352        if (!ha->flags.nic_core_reset_hdlr_active) {
3353                dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3354                if (qla82xx_check_temp(vha)) {
3355                        set_bit(ISP_UNRECOVERABLE, &vha->dpc_flags);
3356                        ha->flags.isp82xx_fw_hung = 1;
3357                        qla82xx_clear_pending_mbx(vha);
3358                } else if (dev_state == QLA8XXX_DEV_NEED_RESET &&
3359                    !test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags)) {
3360                        ql_log(ql_log_warn, vha, 0x6001,
3361                            "Adapter reset needed.\n");
3362                        set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3363                } else if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT &&
3364                        !test_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags)) {
3365                        ql_log(ql_log_warn, vha, 0x6002,
3366                            "Quiescent needed.\n");
3367                        set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
3368                } else if (dev_state == QLA8XXX_DEV_FAILED &&
3369                        !test_bit(ISP_UNRECOVERABLE, &vha->dpc_flags) &&
3370                        vha->flags.online == 1) {
3371                        ql_log(ql_log_warn, vha, 0xb055,
3372                            "Adapter state is failed. Offlining.\n");
3373                        set_bit(ISP_UNRECOVERABLE, &vha->dpc_flags);
3374                        ha->flags.isp82xx_fw_hung = 1;
3375                        qla82xx_clear_pending_mbx(vha);
3376                } else {
3377                        if (qla82xx_check_fw_alive(vha)) {
3378                                ql_dbg(ql_dbg_timer, vha, 0x6011,
3379                                    "disabling pause transmit on port 0 & 1.\n");
3380                                qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
3381                                    CRB_NIU_XG_PAUSE_CTL_P0|CRB_NIU_XG_PAUSE_CTL_P1);
3382                                halt_status = qla82xx_rd_32(ha,
3383                                    QLA82XX_PEG_HALT_STATUS1);
3384                                ql_log(ql_log_info, vha, 0x6005,
3385                                    "dumping hw/fw registers:.\n "
3386                                    " PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,.\n "
3387                                    " PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,.\n "
3388                                    " PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,.\n "
3389                                    " PEG_NET_4_PC: 0x%x.\n", halt_status,
3390                                    qla82xx_rd_32(ha, QLA82XX_PEG_HALT_STATUS2),
3391                                    qla82xx_rd_32(ha,
3392                                            QLA82XX_CRB_PEG_NET_0 + 0x3c),
3393                                    qla82xx_rd_32(ha,
3394                                            QLA82XX_CRB_PEG_NET_1 + 0x3c),
3395                                    qla82xx_rd_32(ha,
3396                                            QLA82XX_CRB_PEG_NET_2 + 0x3c),
3397                                    qla82xx_rd_32(ha,
3398                                            QLA82XX_CRB_PEG_NET_3 + 0x3c),
3399                                    qla82xx_rd_32(ha,
3400                                            QLA82XX_CRB_PEG_NET_4 + 0x3c));
3401                                if (((halt_status & 0x1fffff00) >> 8) == 0x67)
3402                                        ql_log(ql_log_warn, vha, 0xb052,
3403                                            "Firmware aborted with "
3404                                            "error code 0x00006700. Device is "
3405                                            "being reset.\n");
3406                                if (halt_status & HALT_STATUS_UNRECOVERABLE) {
3407                                        set_bit(ISP_UNRECOVERABLE,
3408                                            &vha->dpc_flags);
3409                                } else {
3410                                        ql_log(ql_log_info, vha, 0x6006,
3411                                            "Detect abort  needed.\n");
3412                                        set_bit(ISP_ABORT_NEEDED,
3413                                            &vha->dpc_flags);
3414                                }
3415                                ha->flags.isp82xx_fw_hung = 1;
3416                                ql_log(ql_log_warn, vha, 0x6007, "Firmware hung.\n");
3417                                qla82xx_clear_pending_mbx(vha);
3418                        }
3419                }
3420        }
3421}
3422
3423int qla82xx_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
3424{
3425        int rval;
3426        rval = qla82xx_device_state_handler(vha);
3427        return rval;
3428}
3429
3430void
3431qla82xx_set_reset_owner(scsi_qla_host_t *vha)
3432{
3433        struct qla_hw_data *ha = vha->hw;
3434        uint32_t dev_state;
3435
3436        dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3437        if (dev_state == QLA8XXX_DEV_READY) {
3438                ql_log(ql_log_info, vha, 0xb02f,
3439                    "HW State: NEED RESET\n");
3440                qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3441                        QLA8XXX_DEV_NEED_RESET);
3442                ha->flags.nic_core_reset_owner = 1;
3443                ql_dbg(ql_dbg_p3p, vha, 0xb030,
3444                    "reset_owner is 0x%x\n", ha->portnum);
3445        } else
3446                ql_log(ql_log_info, vha, 0xb031,
3447                    "Device state is 0x%x = %s.\n",
3448                    dev_state,
3449                    dev_state < MAX_STATES ? qdev_state(dev_state) : "Unknown");
3450}
3451
3452/*
3453 *  qla82xx_abort_isp
3454 *      Resets ISP and aborts all outstanding commands.
3455 *
3456 * Input:
3457 *      ha           = adapter block pointer.
3458 *
3459 * Returns:
3460 *      0 = success
3461 */
3462int
3463qla82xx_abort_isp(scsi_qla_host_t *vha)
3464{
3465        int rval;
3466        struct qla_hw_data *ha = vha->hw;
3467
3468        if (vha->device_flags & DFLG_DEV_FAILED) {
3469                ql_log(ql_log_warn, vha, 0x8024,
3470                    "Device in failed state, exiting.\n");
3471                return QLA_SUCCESS;
3472        }
3473        ha->flags.nic_core_reset_hdlr_active = 1;
3474
3475        qla82xx_idc_lock(ha);
3476        qla82xx_set_reset_owner(vha);
3477        qla82xx_idc_unlock(ha);
3478
3479        rval = qla82xx_device_state_handler(vha);
3480
3481        qla82xx_idc_lock(ha);
3482        qla82xx_clear_rst_ready(ha);
3483        qla82xx_idc_unlock(ha);
3484
3485        if (rval == QLA_SUCCESS) {
3486                ha->flags.isp82xx_fw_hung = 0;
3487                ha->flags.nic_core_reset_hdlr_active = 0;
3488                qla82xx_restart_isp(vha);
3489        }
3490
3491        if (rval) {
3492                vha->flags.online = 1;
3493                if (test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
3494                        if (ha->isp_abort_cnt == 0) {
3495                                ql_log(ql_log_warn, vha, 0x8027,
3496                                    "ISP error recover failed - board "
3497                                    "disabled.\n");
3498                                /*
3499                                 * The next call disables the board
3500                                 * completely.
3501                                 */
3502                                ha->isp_ops->reset_adapter(vha);
3503                                vha->flags.online = 0;
3504                                clear_bit(ISP_ABORT_RETRY,
3505                                    &vha->dpc_flags);
3506                                rval = QLA_SUCCESS;
3507                        } else { /* schedule another ISP abort */
3508                                ha->isp_abort_cnt--;
3509                                ql_log(ql_log_warn, vha, 0x8036,
3510                                    "ISP abort - retry remaining %d.\n",
3511                                    ha->isp_abort_cnt);
3512                                rval = QLA_FUNCTION_FAILED;
3513                        }
3514                } else {
3515                        ha->isp_abort_cnt = MAX_RETRIES_OF_ISP_ABORT;
3516                        ql_dbg(ql_dbg_taskm, vha, 0x8029,
3517                            "ISP error recovery - retrying (%d) more times.\n",
3518                            ha->isp_abort_cnt);
3519                        set_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
3520                        rval = QLA_FUNCTION_FAILED;
3521                }
3522        }
3523        return rval;
3524}
3525
3526/*
3527 *  qla82xx_fcoe_ctx_reset
3528 *      Perform a quick reset and aborts all outstanding commands.
3529 *      This will only perform an FCoE context reset and avoids a full blown
3530 *      chip reset.
3531 *
3532 * Input:
3533 *      ha = adapter block pointer.
3534 *      is_reset_path = flag for identifying the reset path.
3535 *
3536 * Returns:
3537 *      0 = success
3538 */
3539int qla82xx_fcoe_ctx_reset(scsi_qla_host_t *vha)
3540{
3541        int rval = QLA_FUNCTION_FAILED;
3542
3543        if (vha->flags.online) {
3544                /* Abort all outstanding commands, so as to be requeued later */
3545                qla2x00_abort_isp_cleanup(vha);
3546        }
3547
3548        /* Stop currently executing firmware.
3549         * This will destroy existing FCoE context at the F/W end.
3550         */
3551        qla2x00_try_to_stop_firmware(vha);
3552
3553        /* Restart. Creates a new FCoE context on INIT_FIRMWARE. */
3554        rval = qla82xx_restart_isp(vha);
3555
3556        return rval;
3557}
3558
3559/*
3560 * qla2x00_wait_for_fcoe_ctx_reset
3561 *    Wait till the FCoE context is reset.
3562 *
3563 * Note:
3564 *    Does context switching here.
3565 *    Release SPIN_LOCK (if any) before calling this routine.
3566 *
3567 * Return:
3568 *    Success (fcoe_ctx reset is done) : 0
3569 *    Failed  (fcoe_ctx reset not completed within max loop timout ) : 1
3570 */
3571int qla2x00_wait_for_fcoe_ctx_reset(scsi_qla_host_t *vha)
3572{
3573        int status = QLA_FUNCTION_FAILED;
3574        unsigned long wait_reset;
3575
3576        wait_reset = jiffies + (MAX_LOOP_TIMEOUT * HZ);
3577        while ((test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) ||
3578            test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
3579            && time_before(jiffies, wait_reset)) {
3580
3581                set_current_state(TASK_UNINTERRUPTIBLE);
3582                schedule_timeout(HZ);
3583
3584                if (!test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) &&
3585                    !test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) {
3586                        status = QLA_SUCCESS;
3587                        break;
3588                }
3589        }
3590        ql_dbg(ql_dbg_p3p, vha, 0xb027,
3591               "%s: status=%d.\n", __func__, status);
3592
3593        return status;
3594}
3595
3596void
3597qla82xx_chip_reset_cleanup(scsi_qla_host_t *vha)
3598{
3599        int i;
3600        unsigned long flags;
3601        struct qla_hw_data *ha = vha->hw;
3602
3603        /* Check if 82XX firmware is alive or not
3604         * We may have arrived here from NEED_RESET
3605         * detection only
3606         */
3607        if (!ha->flags.isp82xx_fw_hung) {
3608                for (i = 0; i < 2; i++) {
3609                        msleep(1000);
3610                        if (qla82xx_check_fw_alive(vha)) {
3611                                ha->flags.isp82xx_fw_hung = 1;
3612                                qla82xx_clear_pending_mbx(vha);
3613                                break;
3614                        }
3615                }
3616        }
3617        ql_dbg(ql_dbg_init, vha, 0x00b0,
3618            "Entered %s fw_hung=%d.\n",
3619            __func__, ha->flags.isp82xx_fw_hung);
3620
3621        /* Abort all commands gracefully if fw NOT hung */
3622        if (!ha->flags.isp82xx_fw_hung) {
3623                int cnt, que;
3624                srb_t *sp;
3625                struct req_que *req;
3626
3627                spin_lock_irqsave(&ha->hardware_lock, flags);
3628                for (que = 0; que < ha->max_req_queues; que++) {
3629                        req = ha->req_q_map[que];
3630                        if (!req)
3631                                continue;
3632                        for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
3633                                sp = req->outstanding_cmds[cnt];
3634                                if (sp) {
3635                                        if (!sp->u.scmd.ctx ||
3636                                            (sp->flags & SRB_FCP_CMND_DMA_VALID)) {
3637                                                spin_unlock_irqrestore(
3638                                                    &ha->hardware_lock, flags);
3639                                                if (ha->isp_ops->abort_command(sp)) {
3640                                                        ql_log(ql_log_info, vha,
3641                                                            0x00b1,
3642                                                            "mbx abort failed.\n");
3643                                                } else {
3644                                                        ql_log(ql_log_info, vha,
3645                                                            0x00b2,
3646                                                            "mbx abort success.\n");
3647                                                }
3648                                                spin_lock_irqsave(&ha->hardware_lock, flags);
3649                                        }
3650                                }
3651                        }
3652                }
3653                spin_unlock_irqrestore(&ha->hardware_lock, flags);
3654
3655                /* Wait for pending cmds (physical and virtual) to complete */
3656                if (!qla2x00_eh_wait_for_pending_commands(vha, 0, 0,
3657                    WAIT_HOST) == QLA_SUCCESS) {
3658                        ql_dbg(ql_dbg_init, vha, 0x00b3,
3659                            "Done wait for "
3660                            "pending commands.\n");
3661                }
3662        }
3663}
3664
3665/* Minidump related functions */
3666static int
3667qla82xx_minidump_process_control(scsi_qla_host_t *vha,
3668        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3669{
3670        struct qla_hw_data *ha = vha->hw;
3671        struct qla82xx_md_entry_crb *crb_entry;
3672        uint32_t read_value, opcode, poll_time;
3673        uint32_t addr, index, crb_addr;
3674        unsigned long wtime;
3675        struct qla82xx_md_template_hdr *tmplt_hdr;
3676        uint32_t rval = QLA_SUCCESS;
3677        int i;
3678
3679        tmplt_hdr = (struct qla82xx_md_template_hdr *)ha->md_tmplt_hdr;
3680        crb_entry = (struct qla82xx_md_entry_crb *)entry_hdr;
3681        crb_addr = crb_entry->addr;
3682
3683        for (i = 0; i < crb_entry->op_count; i++) {
3684                opcode = crb_entry->crb_ctrl.opcode;
3685                if (opcode & QLA82XX_DBG_OPCODE_WR) {
3686                        qla82xx_md_rw_32(ha, crb_addr,
3687                            crb_entry->value_1, 1);
3688                        opcode &= ~QLA82XX_DBG_OPCODE_WR;
3689                }
3690
3691                if (opcode & QLA82XX_DBG_OPCODE_RW) {
3692                        read_value = qla82xx_md_rw_32(ha, crb_addr, 0, 0);
3693                        qla82xx_md_rw_32(ha, crb_addr, read_value, 1);
3694                        opcode &= ~QLA82XX_DBG_OPCODE_RW;
3695                }
3696
3697                if (opcode & QLA82XX_DBG_OPCODE_AND) {
3698                        read_value = qla82xx_md_rw_32(ha, crb_addr, 0, 0);
3699                        read_value &= crb_entry->value_2;
3700                        opcode &= ~QLA82XX_DBG_OPCODE_AND;
3701                        if (opcode & QLA82XX_DBG_OPCODE_OR) {
3702                                read_value |= crb_entry->value_3;
3703                                opcode &= ~QLA82XX_DBG_OPCODE_OR;
3704                        }
3705                        qla82xx_md_rw_32(ha, crb_addr, read_value, 1);
3706                }
3707
3708                if (opcode & QLA82XX_DBG_OPCODE_OR) {
3709                        read_value = qla82xx_md_rw_32(ha, crb_addr, 0, 0);
3710                        read_value |= crb_entry->value_3;
3711                        qla82xx_md_rw_32(ha, crb_addr, read_value, 1);
3712                        opcode &= ~QLA82XX_DBG_OPCODE_OR;
3713                }
3714
3715                if (opcode & QLA82XX_DBG_OPCODE_POLL) {
3716                        poll_time = crb_entry->crb_strd.poll_timeout;
3717                        wtime = jiffies + poll_time;
3718                        read_value = qla82xx_md_rw_32(ha, crb_addr, 0, 0);
3719
3720                        do {
3721                                if ((read_value & crb_entry->value_2)
3722                                    == crb_entry->value_1)
3723                                        break;
3724                                else if (time_after_eq(jiffies, wtime)) {
3725                                        /* capturing dump failed */
3726                                        rval = QLA_FUNCTION_FAILED;
3727                                        break;
3728                                } else
3729                                        read_value = qla82xx_md_rw_32(ha,
3730                                            crb_addr, 0, 0);
3731                        } while (1);
3732                        opcode &= ~QLA82XX_DBG_OPCODE_POLL;
3733                }
3734
3735                if (opcode & QLA82XX_DBG_OPCODE_RDSTATE) {
3736                        if (crb_entry->crb_strd.state_index_a) {
3737                                index = crb_entry->crb_strd.state_index_a;
3738                                addr = tmplt_hdr->saved_state_array[index];
3739                        } else
3740                                addr = crb_addr;
3741
3742                        read_value = qla82xx_md_rw_32(ha, addr, 0, 0);
3743                        index = crb_entry->crb_ctrl.state_index_v;
3744                        tmplt_hdr->saved_state_array[index] = read_value;
3745                        opcode &= ~QLA82XX_DBG_OPCODE_RDSTATE;
3746                }
3747
3748                if (opcode & QLA82XX_DBG_OPCODE_WRSTATE) {
3749                        if (crb_entry->crb_strd.state_index_a) {
3750                                index = crb_entry->crb_strd.state_index_a;
3751                                addr = tmplt_hdr->saved_state_array[index];
3752                        } else
3753                                addr = crb_addr;
3754
3755                        if (crb_entry->crb_ctrl.state_index_v) {
3756                                index = crb_entry->crb_ctrl.state_index_v;
3757                                read_value =
3758                                    tmplt_hdr->saved_state_array[index];
3759                        } else
3760                                read_value = crb_entry->value_1;
3761
3762                        qla82xx_md_rw_32(ha, addr, read_value, 1);
3763                        opcode &= ~QLA82XX_DBG_OPCODE_WRSTATE;
3764                }
3765
3766                if (opcode & QLA82XX_DBG_OPCODE_MDSTATE) {
3767                        index = crb_entry->crb_ctrl.state_index_v;
3768                        read_value = tmplt_hdr->saved_state_array[index];
3769                        read_value <<= crb_entry->crb_ctrl.shl;
3770                        read_value >>= crb_entry->crb_ctrl.shr;
3771                        if (crb_entry->value_2)
3772                                read_value &= crb_entry->value_2;
3773                        read_value |= crb_entry->value_3;
3774                        read_value += crb_entry->value_1;
3775                        tmplt_hdr->saved_state_array[index] = read_value;
3776                        opcode &= ~QLA82XX_DBG_OPCODE_MDSTATE;
3777                }
3778                crb_addr += crb_entry->crb_strd.addr_stride;
3779        }
3780        return rval;
3781}
3782
3783static void
3784qla82xx_minidump_process_rdocm(scsi_qla_host_t *vha,
3785        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3786{
3787        struct qla_hw_data *ha = vha->hw;
3788        uint32_t r_addr, r_stride, loop_cnt, i, r_value;
3789        struct qla82xx_md_entry_rdocm *ocm_hdr;
3790        uint32_t *data_ptr = *d_ptr;
3791
3792        ocm_hdr = (struct qla82xx_md_entry_rdocm *)entry_hdr;
3793        r_addr = ocm_hdr->read_addr;
3794        r_stride = ocm_hdr->read_addr_stride;
3795        loop_cnt = ocm_hdr->op_count;
3796
3797        for (i = 0; i < loop_cnt; i++) {
3798                r_value = RD_REG_DWORD((void __iomem *)
3799                    (r_addr + ha->nx_pcibase));
3800                *data_ptr++ = cpu_to_le32(r_value);
3801                r_addr += r_stride;
3802        }
3803        *d_ptr = data_ptr;
3804}
3805
3806static void
3807qla82xx_minidump_process_rdmux(scsi_qla_host_t *vha,
3808        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3809{
3810        struct qla_hw_data *ha = vha->hw;
3811        uint32_t r_addr, s_stride, s_addr, s_value, loop_cnt, i, r_value;
3812        struct qla82xx_md_entry_mux *mux_hdr;
3813        uint32_t *data_ptr = *d_ptr;
3814
3815        mux_hdr = (struct qla82xx_md_entry_mux *)entry_hdr;
3816        r_addr = mux_hdr->read_addr;
3817        s_addr = mux_hdr->select_addr;
3818        s_stride = mux_hdr->select_value_stride;
3819        s_value = mux_hdr->select_value;
3820        loop_cnt = mux_hdr->op_count;
3821
3822        for (i = 0; i < loop_cnt; i++) {
3823                qla82xx_md_rw_32(ha, s_addr, s_value, 1);
3824                r_value = qla82xx_md_rw_32(ha, r_addr, 0, 0);
3825                *data_ptr++ = cpu_to_le32(s_value);
3826                *data_ptr++ = cpu_to_le32(r_value);
3827                s_value += s_stride;
3828        }
3829        *d_ptr = data_ptr;
3830}
3831
3832static void
3833qla82xx_minidump_process_rdcrb(scsi_qla_host_t *vha,
3834        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3835{
3836        struct qla_hw_data *ha = vha->hw;
3837        uint32_t r_addr, r_stride, loop_cnt, i, r_value;
3838        struct qla82xx_md_entry_crb *crb_hdr;
3839        uint32_t *data_ptr = *d_ptr;
3840
3841        crb_hdr = (struct qla82xx_md_entry_crb *)entry_hdr;
3842        r_addr = crb_hdr->addr;
3843        r_stride = crb_hdr->crb_strd.addr_stride;
3844        loop_cnt = crb_hdr->op_count;
3845
3846        for (i = 0; i < loop_cnt; i++) {
3847                r_value = qla82xx_md_rw_32(ha, r_addr, 0, 0);
3848                *data_ptr++ = cpu_to_le32(r_addr);
3849                *data_ptr++ = cpu_to_le32(r_value);
3850                r_addr += r_stride;
3851        }
3852        *d_ptr = data_ptr;
3853}
3854
3855static int
3856qla82xx_minidump_process_l2tag(scsi_qla_host_t *vha,
3857        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3858{
3859        struct qla_hw_data *ha = vha->hw;
3860        uint32_t addr, r_addr, c_addr, t_r_addr;
3861        uint32_t i, k, loop_count, t_value, r_cnt, r_value;
3862        unsigned long p_wait, w_time, p_mask;
3863        uint32_t c_value_w, c_value_r;
3864        struct qla82xx_md_entry_cache *cache_hdr;
3865        int rval = QLA_FUNCTION_FAILED;
3866        uint32_t *data_ptr = *d_ptr;
3867
3868        cache_hdr = (struct qla82xx_md_entry_cache *)entry_hdr;
3869        loop_count = cache_hdr->op_count;
3870        r_addr = cache_hdr->read_addr;
3871        c_addr = cache_hdr->control_addr;
3872        c_value_w = cache_hdr->cache_ctrl.write_value;
3873
3874        t_r_addr = cache_hdr->tag_reg_addr;
3875        t_value = cache_hdr->addr_ctrl.init_tag_value;
3876        r_cnt = cache_hdr->read_ctrl.read_addr_cnt;
3877        p_wait = cache_hdr->cache_ctrl.poll_wait;
3878        p_mask = cache_hdr->cache_ctrl.poll_mask;
3879
3880        for (i = 0; i < loop_count; i++) {
3881                qla82xx_md_rw_32(ha, t_r_addr, t_value, 1);
3882                if (c_value_w)
3883                        qla82xx_md_rw_32(ha, c_addr, c_value_w, 1);
3884
3885                if (p_mask) {
3886                        w_time = jiffies + p_wait;
3887                        do {
3888                                c_value_r = qla82xx_md_rw_32(ha, c_addr, 0, 0);
3889                                if ((c_value_r & p_mask) == 0)
3890                                        break;
3891                                else if (time_after_eq(jiffies, w_time)) {
3892                                        /* capturing dump failed */
3893                                        ql_dbg(ql_dbg_p3p, vha, 0xb032,
3894                                            "c_value_r: 0x%x, poll_mask: 0x%lx, "
3895                                            "w_time: 0x%lx\n",
3896                                            c_value_r, p_mask, w_time);
3897                                        return rval;
3898                                }
3899                        } while (1);
3900                }
3901
3902                addr = r_addr;
3903                for (k = 0; k < r_cnt; k++) {
3904                        r_value = qla82xx_md_rw_32(ha, addr, 0, 0);
3905                        *data_ptr++ = cpu_to_le32(r_value);
3906                        addr += cache_hdr->read_ctrl.read_addr_stride;
3907                }
3908                t_value += cache_hdr->addr_ctrl.tag_value_stride;
3909        }
3910        *d_ptr = data_ptr;
3911        return QLA_SUCCESS;
3912}
3913
3914static void
3915qla82xx_minidump_process_l1cache(scsi_qla_host_t *vha,
3916        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3917{
3918        struct qla_hw_data *ha = vha->hw;
3919        uint32_t addr, r_addr, c_addr, t_r_addr;
3920        uint32_t i, k, loop_count, t_value, r_cnt, r_value;
3921        uint32_t c_value_w;
3922        struct qla82xx_md_entry_cache *cache_hdr;
3923        uint32_t *data_ptr = *d_ptr;
3924
3925        cache_hdr = (struct qla82xx_md_entry_cache *)entry_hdr;
3926        loop_count = cache_hdr->op_count;
3927        r_addr = cache_hdr->read_addr;
3928        c_addr = cache_hdr->control_addr;
3929        c_value_w = cache_hdr->cache_ctrl.write_value;
3930
3931        t_r_addr = cache_hdr->tag_reg_addr;
3932        t_value = cache_hdr->addr_ctrl.init_tag_value;
3933        r_cnt = cache_hdr->read_ctrl.read_addr_cnt;
3934
3935        for (i = 0; i < loop_count; i++) {
3936                qla82xx_md_rw_32(ha, t_r_addr, t_value, 1);
3937                qla82xx_md_rw_32(ha, c_addr, c_value_w, 1);
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}
3948
3949static void
3950qla82xx_minidump_process_queue(scsi_qla_host_t *vha,
3951        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3952{
3953        struct qla_hw_data *ha = vha->hw;
3954        uint32_t s_addr, r_addr;
3955        uint32_t r_stride, r_value, r_cnt, qid = 0;
3956        uint32_t i, k, loop_cnt;
3957        struct qla82xx_md_entry_queue *q_hdr;
3958        uint32_t *data_ptr = *d_ptr;
3959
3960        q_hdr = (struct qla82xx_md_entry_queue *)entry_hdr;
3961        s_addr = q_hdr->select_addr;
3962        r_cnt = q_hdr->rd_strd.read_addr_cnt;
3963        r_stride = q_hdr->rd_strd.read_addr_stride;
3964        loop_cnt = q_hdr->op_count;
3965
3966        for (i = 0; i < loop_cnt; i++) {
3967                qla82xx_md_rw_32(ha, s_addr, qid, 1);
3968                r_addr = q_hdr->read_addr;
3969                for (k = 0; k < r_cnt; k++) {
3970                        r_value = qla82xx_md_rw_32(ha, r_addr, 0, 0);
3971                        *data_ptr++ = cpu_to_le32(r_value);
3972                        r_addr += r_stride;
3973                }
3974                qid += q_hdr->q_strd.queue_id_stride;
3975        }
3976        *d_ptr = data_ptr;
3977}
3978
3979static void
3980qla82xx_minidump_process_rdrom(scsi_qla_host_t *vha,
3981        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3982{
3983        struct qla_hw_data *ha = vha->hw;
3984        uint32_t r_addr, r_value;
3985        uint32_t i, loop_cnt;
3986        struct qla82xx_md_entry_rdrom *rom_hdr;
3987        uint32_t *data_ptr = *d_ptr;
3988
3989        rom_hdr = (struct qla82xx_md_entry_rdrom *)entry_hdr;
3990        r_addr = rom_hdr->read_addr;
3991        loop_cnt = rom_hdr->read_data_size/sizeof(uint32_t);
3992
3993        for (i = 0; i < loop_cnt; i++) {
3994                qla82xx_md_rw_32(ha, MD_DIRECT_ROM_WINDOW,
3995                    (r_addr & 0xFFFF0000), 1);
3996                r_value = qla82xx_md_rw_32(ha,
3997                    MD_DIRECT_ROM_READ_BASE +
3998                    (r_addr & 0x0000FFFF), 0, 0);
3999                *data_ptr++ = cpu_to_le32(r_value);
4000                r_addr += sizeof(uint32_t);
4001        }
4002        *d_ptr = data_ptr;
4003}
4004
4005static int
4006qla82xx_minidump_process_rdmem(scsi_qla_host_t *vha,
4007        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
4008{
4009        struct qla_hw_data *ha = vha->hw;
4010        uint32_t r_addr, r_value, r_data;
4011        uint32_t i, j, loop_cnt;
4012        struct qla82xx_md_entry_rdmem *m_hdr;
4013        unsigned long flags;
4014        int rval = QLA_FUNCTION_FAILED;
4015        uint32_t *data_ptr = *d_ptr;
4016
4017        m_hdr = (struct qla82xx_md_entry_rdmem *)entry_hdr;
4018        r_addr = m_hdr->read_addr;
4019        loop_cnt = m_hdr->read_data_size/16;
4020
4021        if (r_addr & 0xf) {
4022                ql_log(ql_log_warn, vha, 0xb033,
4023                    "Read addr 0x%x not 16 bytes aligned\n", r_addr);
4024                return rval;
4025        }
4026
4027        if (m_hdr->read_data_size % 16) {
4028                ql_log(ql_log_warn, vha, 0xb034,
4029                    "Read data[0x%x] not multiple of 16 bytes\n",
4030                    m_hdr->read_data_size);
4031                return rval;
4032        }
4033
4034        ql_dbg(ql_dbg_p3p, vha, 0xb035,
4035            "[%s]: rdmem_addr: 0x%x, read_data_size: 0x%x, loop_cnt: 0x%x\n",
4036            __func__, r_addr, m_hdr->read_data_size, loop_cnt);
4037
4038        write_lock_irqsave(&ha->hw_lock, flags);
4039        for (i = 0; i < loop_cnt; i++) {
4040                qla82xx_md_rw_32(ha, MD_MIU_TEST_AGT_ADDR_LO, r_addr, 1);
4041                r_value = 0;
4042                qla82xx_md_rw_32(ha, MD_MIU_TEST_AGT_ADDR_HI, r_value, 1);
4043                r_value = MIU_TA_CTL_ENABLE;
4044                qla82xx_md_rw_32(ha, MD_MIU_TEST_AGT_CTRL, r_value, 1);
4045                r_value = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE;
4046                qla82xx_md_rw_32(ha, MD_MIU_TEST_AGT_CTRL, r_value, 1);
4047
4048                for (j = 0; j < MAX_CTL_CHECK; j++) {
4049                        r_value = qla82xx_md_rw_32(ha,
4050                            MD_MIU_TEST_AGT_CTRL, 0, 0);
4051                        if ((r_value & MIU_TA_CTL_BUSY) == 0)
4052                                break;
4053                }
4054
4055                if (j >= MAX_CTL_CHECK) {
4056                        printk_ratelimited(KERN_ERR
4057                            "failed to read through agent\n");
4058                        write_unlock_irqrestore(&ha->hw_lock, flags);
4059                        return rval;
4060                }
4061
4062                for (j = 0; j < 4; j++) {
4063                        r_data = qla82xx_md_rw_32(ha,
4064                            MD_MIU_TEST_AGT_RDDATA[j], 0, 0);
4065                        *data_ptr++ = cpu_to_le32(r_data);
4066                }
4067                r_addr += 16;
4068        }
4069        write_unlock_irqrestore(&ha->hw_lock, flags);
4070        *d_ptr = data_ptr;
4071        return QLA_SUCCESS;
4072}
4073
4074static int
4075qla82xx_validate_template_chksum(scsi_qla_host_t *vha)
4076{
4077        struct qla_hw_data *ha = vha->hw;
4078        uint64_t chksum = 0;
4079        uint32_t *d_ptr = (uint32_t *)ha->md_tmplt_hdr;
4080        int count = ha->md_template_size/sizeof(uint32_t);
4081
4082        while (count-- > 0)
4083                chksum += *d_ptr++;
4084        while (chksum >> 32)
4085                chksum = (chksum & 0xFFFFFFFF) + (chksum >> 32);
4086        return ~chksum;
4087}
4088
4089static void
4090qla82xx_mark_entry_skipped(scsi_qla_host_t *vha,
4091        qla82xx_md_entry_hdr_t *entry_hdr, int index)
4092{
4093        entry_hdr->d_ctrl.driver_flags |= QLA82XX_DBG_SKIPPED_FLAG;
4094        ql_dbg(ql_dbg_p3p, vha, 0xb036,
4095            "Skipping entry[%d]: "
4096            "ETYPE[0x%x]-ELEVEL[0x%x]\n",
4097            index, entry_hdr->entry_type,
4098            entry_hdr->d_ctrl.entry_capture_mask);
4099}
4100
4101int
4102qla82xx_md_collect(scsi_qla_host_t *vha)
4103{
4104        struct qla_hw_data *ha = vha->hw;
4105        int no_entry_hdr = 0;
4106        qla82xx_md_entry_hdr_t *entry_hdr;
4107        struct qla82xx_md_template_hdr *tmplt_hdr;
4108        uint32_t *data_ptr;
4109        uint32_t total_data_size = 0, f_capture_mask, data_collected = 0;
4110        int i = 0, rval = QLA_FUNCTION_FAILED;
4111
4112        tmplt_hdr = (struct qla82xx_md_template_hdr *)ha->md_tmplt_hdr;
4113        data_ptr = (uint32_t *)ha->md_dump;
4114
4115        if (ha->fw_dumped) {
4116                ql_log(ql_log_warn, vha, 0xb037,
4117                    "Firmware has been previously dumped (%p) "
4118                    "-- ignoring request.\n", ha->fw_dump);
4119                goto md_failed;
4120        }
4121
4122        ha->fw_dumped = 0;
4123
4124        if (!ha->md_tmplt_hdr || !ha->md_dump) {
4125                ql_log(ql_log_warn, vha, 0xb038,
4126                    "Memory not allocated for minidump capture\n");
4127                goto md_failed;
4128        }
4129
4130        if (ha->flags.isp82xx_no_md_cap) {
4131                ql_log(ql_log_warn, vha, 0xb054,
4132                    "Forced reset from application, "
4133                    "ignore minidump capture\n");
4134                ha->flags.isp82xx_no_md_cap = 0;
4135                goto md_failed;
4136        }
4137
4138        if (qla82xx_validate_template_chksum(vha)) {
4139                ql_log(ql_log_info, vha, 0xb039,
4140                    "Template checksum validation error\n");
4141                goto md_failed;
4142        }
4143
4144        no_entry_hdr = tmplt_hdr->num_of_entries;
4145        ql_dbg(ql_dbg_p3p, vha, 0xb03a,
4146            "No of entry headers in Template: 0x%x\n", no_entry_hdr);
4147
4148        ql_dbg(ql_dbg_p3p, vha, 0xb03b,
4149            "Capture Mask obtained: 0x%x\n", tmplt_hdr->capture_debug_level);
4150
4151        f_capture_mask = tmplt_hdr->capture_debug_level & 0xFF;
4152
4153        /* Validate whether required debug level is set */
4154        if ((f_capture_mask & 0x3) != 0x3) {
4155                ql_log(ql_log_warn, vha, 0xb03c,
4156                    "Minimum required capture mask[0x%x] level not set\n",
4157                    f_capture_mask);
4158                goto md_failed;
4159        }
4160        tmplt_hdr->driver_capture_mask = ql2xmdcapmask;
4161
4162        tmplt_hdr->driver_info[0] = vha->host_no;
4163        tmplt_hdr->driver_info[1] = (QLA_DRIVER_MAJOR_VER << 24) |
4164            (QLA_DRIVER_MINOR_VER << 16) | (QLA_DRIVER_PATCH_VER << 8) |
4165            QLA_DRIVER_BETA_VER;
4166
4167        total_data_size = ha->md_dump_size;
4168
4169        ql_dbg(ql_dbg_p3p, vha, 0xb03d,
4170            "Total minidump data_size 0x%x to be captured\n", total_data_size);
4171
4172        /* Check whether template obtained is valid */
4173        if (tmplt_hdr->entry_type != QLA82XX_TLHDR) {
4174                ql_log(ql_log_warn, vha, 0xb04e,
4175                    "Bad template header entry type: 0x%x obtained\n",
4176                    tmplt_hdr->entry_type);
4177                goto md_failed;
4178        }
4179
4180        entry_hdr = (qla82xx_md_entry_hdr_t *) \
4181            (((uint8_t *)ha->md_tmplt_hdr) + tmplt_hdr->first_entry_offset);
4182
4183        /* Walk through the entry headers */
4184        for (i = 0; i < no_entry_hdr; i++) {
4185
4186                if (data_collected > total_data_size) {
4187                        ql_log(ql_log_warn, vha, 0xb03e,
4188                            "More MiniDump data collected: [0x%x]\n",
4189                            data_collected);
4190                        goto md_failed;
4191                }
4192
4193                if (!(entry_hdr->d_ctrl.entry_capture_mask &
4194                    ql2xmdcapmask)) {
4195                        entry_hdr->d_ctrl.driver_flags |=
4196                            QLA82XX_DBG_SKIPPED_FLAG;
4197                        ql_dbg(ql_dbg_p3p, vha, 0xb03f,
4198                            "Skipping entry[%d]: "
4199                            "ETYPE[0x%x]-ELEVEL[0x%x]\n",
4200                            i, entry_hdr->entry_type,
4201                            entry_hdr->d_ctrl.entry_capture_mask);
4202                        goto skip_nxt_entry;
4203                }
4204
4205                ql_dbg(ql_dbg_p3p, vha, 0xb040,
4206                    "[%s]: data ptr[%d]: %p, entry_hdr: %p\n"
4207                    "entry_type: 0x%x, captrue_mask: 0x%x\n",
4208                    __func__, i, data_ptr, entry_hdr,
4209                    entry_hdr->entry_type,
4210                    entry_hdr->d_ctrl.entry_capture_mask);
4211
4212                ql_dbg(ql_dbg_p3p, vha, 0xb041,
4213                    "Data collected: [0x%x], Dump size left:[0x%x]\n",
4214                    data_collected, (ha->md_dump_size - data_collected));
4215
4216                /* Decode the entry type and take
4217                 * required action to capture debug data */
4218                switch (entry_hdr->entry_type) {
4219                case QLA82XX_RDEND:
4220                        qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4221                        break;
4222                case QLA82XX_CNTRL:
4223                        rval = qla82xx_minidump_process_control(vha,
4224                            entry_hdr, &data_ptr);
4225                        if (rval != QLA_SUCCESS) {
4226                                qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4227                                goto md_failed;
4228                        }
4229                        break;
4230                case QLA82XX_RDCRB:
4231                        qla82xx_minidump_process_rdcrb(vha,
4232                            entry_hdr, &data_ptr);
4233                        break;
4234                case QLA82XX_RDMEM:
4235                        rval = qla82xx_minidump_process_rdmem(vha,
4236                            entry_hdr, &data_ptr);
4237                        if (rval != QLA_SUCCESS) {
4238                                qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4239                                goto md_failed;
4240                        }
4241                        break;
4242                case QLA82XX_BOARD:
4243                case QLA82XX_RDROM:
4244                        qla82xx_minidump_process_rdrom(vha,
4245                            entry_hdr, &data_ptr);
4246                        break;
4247                case QLA82XX_L2DTG:
4248                case QLA82XX_L2ITG:
4249                case QLA82XX_L2DAT:
4250                case QLA82XX_L2INS:
4251                        rval = qla82xx_minidump_process_l2tag(vha,
4252                            entry_hdr, &data_ptr);
4253                        if (rval != QLA_SUCCESS) {
4254                                qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4255                                goto md_failed;
4256                        }
4257                        break;
4258                case QLA82XX_L1DAT:
4259                case QLA82XX_L1INS:
4260                        qla82xx_minidump_process_l1cache(vha,
4261                            entry_hdr, &data_ptr);
4262                        break;
4263                case QLA82XX_RDOCM:
4264                        qla82xx_minidump_process_rdocm(vha,
4265                            entry_hdr, &data_ptr);
4266                        break;
4267                case QLA82XX_RDMUX:
4268                        qla82xx_minidump_process_rdmux(vha,
4269                            entry_hdr, &data_ptr);
4270                        break;
4271                case QLA82XX_QUEUE:
4272                        qla82xx_minidump_process_queue(vha,
4273                            entry_hdr, &data_ptr);
4274                        break;
4275                case QLA82XX_RDNOP:
4276                default:
4277                        qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4278                        break;
4279                }
4280
4281                ql_dbg(ql_dbg_p3p, vha, 0xb042,
4282                    "[%s]: data ptr[%d]: %p\n", __func__, i, data_ptr);
4283
4284                data_collected = (uint8_t *)data_ptr -
4285                    (uint8_t *)ha->md_dump;
4286skip_nxt_entry:
4287                entry_hdr = (qla82xx_md_entry_hdr_t *) \
4288                    (((uint8_t *)entry_hdr) + entry_hdr->entry_size);
4289        }
4290
4291        if (data_collected != total_data_size) {
4292                ql_dbg(ql_dbg_p3p, vha, 0xb043,
4293                    "MiniDump data mismatch: Data collected: [0x%x],"
4294                    "total_data_size:[0x%x]\n",
4295                    data_collected, total_data_size);
4296                goto md_failed;
4297        }
4298
4299        ql_log(ql_log_info, vha, 0xb044,
4300            "Firmware dump saved to temp buffer (%ld/%p %ld/%p).\n",
4301            vha->host_no, ha->md_tmplt_hdr, vha->host_no, ha->md_dump);
4302        ha->fw_dumped = 1;
4303        qla2x00_post_uevent_work(vha, QLA_UEVENT_CODE_FW_DUMP);
4304
4305md_failed:
4306        return rval;
4307}
4308
4309int
4310qla82xx_md_alloc(scsi_qla_host_t *vha)
4311{
4312        struct qla_hw_data *ha = vha->hw;
4313        int i, k;
4314        struct qla82xx_md_template_hdr *tmplt_hdr;
4315
4316        tmplt_hdr = (struct qla82xx_md_template_hdr *)ha->md_tmplt_hdr;
4317
4318        if (ql2xmdcapmask < 0x3 || ql2xmdcapmask > 0x7F) {
4319                ql2xmdcapmask = tmplt_hdr->capture_debug_level & 0xFF;
4320                ql_log(ql_log_info, vha, 0xb045,
4321                    "Forcing driver capture mask to firmware default capture mask: 0x%x.\n",
4322                    ql2xmdcapmask);
4323        }
4324
4325        for (i = 0x2, k = 1; (i & QLA82XX_DEFAULT_CAP_MASK); i <<= 1, k++) {
4326                if (i & ql2xmdcapmask)
4327                        ha->md_dump_size += tmplt_hdr->capture_size_array[k];
4328        }
4329
4330        if (ha->md_dump) {
4331                ql_log(ql_log_warn, vha, 0xb046,
4332                    "Firmware dump previously allocated.\n");
4333                return 1;
4334        }
4335
4336        ha->md_dump = vmalloc(ha->md_dump_size);
4337        if (ha->md_dump == NULL) {
4338                ql_log(ql_log_warn, vha, 0xb047,
4339                    "Unable to allocate memory for Minidump size "
4340                    "(0x%x).\n", ha->md_dump_size);
4341                return 1;
4342        }
4343        return 0;
4344}
4345
4346void
4347qla82xx_md_free(scsi_qla_host_t *vha)
4348{
4349        struct qla_hw_data *ha = vha->hw;
4350
4351        /* Release the template header allocated */
4352        if (ha->md_tmplt_hdr) {
4353                ql_log(ql_log_info, vha, 0xb048,
4354                    "Free MiniDump template: %p, size (%d KB)\n",
4355                    ha->md_tmplt_hdr, ha->md_template_size / 1024);
4356                dma_free_coherent(&ha->pdev->dev, ha->md_template_size,
4357                    ha->md_tmplt_hdr, ha->md_tmplt_hdr_dma);
4358                ha->md_tmplt_hdr = NULL;
4359        }
4360
4361        /* Release the template data buffer allocated */
4362        if (ha->md_dump) {
4363                ql_log(ql_log_info, vha, 0xb049,
4364                    "Free MiniDump memory: %p, size (%d KB)\n",
4365                    ha->md_dump, ha->md_dump_size / 1024);
4366                vfree(ha->md_dump);
4367                ha->md_dump_size = 0;
4368                ha->md_dump = NULL;
4369        }
4370}
4371
4372void
4373qla82xx_md_prep(scsi_qla_host_t *vha)
4374{
4375        struct qla_hw_data *ha = vha->hw;
4376        int rval;
4377
4378        /* Get Minidump template size */
4379        rval = qla82xx_md_get_template_size(vha);
4380        if (rval == QLA_SUCCESS) {
4381                ql_log(ql_log_info, vha, 0xb04a,
4382                    "MiniDump Template size obtained (%d KB)\n",
4383                    ha->md_template_size / 1024);
4384
4385                /* Get Minidump template */
4386                rval = qla82xx_md_get_template(vha);
4387                if (rval == QLA_SUCCESS) {
4388                        ql_dbg(ql_dbg_p3p, vha, 0xb04b,
4389                            "MiniDump Template obtained\n");
4390
4391                        /* Allocate memory for minidump */
4392                        rval = qla82xx_md_alloc(vha);
4393                        if (rval == QLA_SUCCESS)
4394                                ql_log(ql_log_info, vha, 0xb04c,
4395                                    "MiniDump memory allocated (%d KB)\n",
4396                                    ha->md_dump_size / 1024);
4397                        else {
4398                                ql_log(ql_log_info, vha, 0xb04d,
4399                                    "Free MiniDump template: %p, size: (%d KB)\n",
4400                                    ha->md_tmplt_hdr,
4401                                    ha->md_template_size / 1024);
4402                                dma_free_coherent(&ha->pdev->dev,
4403                                    ha->md_template_size,
4404                                    ha->md_tmplt_hdr, ha->md_tmplt_hdr_dma);
4405                                ha->md_tmplt_hdr = NULL;
4406                        }
4407
4408                }
4409        }
4410}
4411
4412int
4413qla82xx_beacon_on(struct scsi_qla_host *vha)
4414{
4415
4416        int rval;
4417        struct qla_hw_data *ha = vha->hw;
4418        qla82xx_idc_lock(ha);
4419        rval = qla82xx_mbx_beacon_ctl(vha, 1);
4420
4421        if (rval) {
4422                ql_log(ql_log_warn, vha, 0xb050,
4423                    "mbx set led config failed in %s\n", __func__);
4424                goto exit;
4425        }
4426        ha->beacon_blink_led = 1;
4427exit:
4428        qla82xx_idc_unlock(ha);
4429        return rval;
4430}
4431
4432int
4433qla82xx_beacon_off(struct scsi_qla_host *vha)
4434{
4435
4436        int rval;
4437        struct qla_hw_data *ha = vha->hw;
4438        qla82xx_idc_lock(ha);
4439        rval = qla82xx_mbx_beacon_ctl(vha, 0);
4440
4441        if (rval) {
4442                ql_log(ql_log_warn, vha, 0xb051,
4443                    "mbx set led config failed in %s\n", __func__);
4444                goto exit;
4445        }
4446        ha->beacon_blink_led = 0;
4447exit:
4448        qla82xx_idc_unlock(ha);
4449        return rval;
4450}
4451