linux/drivers/scsi/qla2xxx/qla_nx.c
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   1/*
   2 * QLogic Fibre Channel HBA Driver
   3 * Copyright (c)  2003-2011 QLogic Corporation
   4 *
   5 * See LICENSE.qla2xxx for copyright and licensing details.
   6 */
   7#include "qla_def.h"
   8#include <linux/delay.h>
   9#include <linux/pci.h>
  10#include <linux/ratelimit.h>
  11#include <linux/vmalloc.h>
  12#include <scsi/scsi_tcq.h>
  13
  14#define MASK(n)                 ((1ULL<<(n))-1)
  15#define MN_WIN(addr) (((addr & 0x1fc0000) >> 1) | \
  16        ((addr >> 25) & 0x3ff))
  17#define OCM_WIN(addr) (((addr & 0x1ff0000) >> 1) | \
  18        ((addr >> 25) & 0x3ff))
  19#define MS_WIN(addr) (addr & 0x0ffc0000)
  20#define QLA82XX_PCI_MN_2M   (0)
  21#define QLA82XX_PCI_MS_2M   (0x80000)
  22#define QLA82XX_PCI_OCM0_2M (0xc0000)
  23#define VALID_OCM_ADDR(addr) (((addr) & 0x3f800) != 0x3f800)
  24#define GET_MEM_OFFS_2M(addr) (addr & MASK(18))
  25#define BLOCK_PROTECT_BITS 0x0F
  26
  27/* CRB window related */
  28#define CRB_BLK(off)    ((off >> 20) & 0x3f)
  29#define CRB_SUBBLK(off) ((off >> 16) & 0xf)
  30#define CRB_WINDOW_2M   (0x130060)
  31#define QLA82XX_PCI_CAMQM_2M_END        (0x04800800UL)
  32#define CRB_HI(off)     ((qla82xx_crb_hub_agt[CRB_BLK(off)] << 20) | \
  33                        ((off) & 0xf0000))
  34#define QLA82XX_PCI_CAMQM_2M_BASE       (0x000ff800UL)
  35#define CRB_INDIRECT_2M (0x1e0000UL)
  36
  37#define MAX_CRB_XFORM 60
  38static unsigned long crb_addr_xform[MAX_CRB_XFORM];
  39int qla82xx_crb_table_initialized;
  40
  41#define qla82xx_crb_addr_transform(name) \
  42        (crb_addr_xform[QLA82XX_HW_PX_MAP_CRB_##name] = \
  43        QLA82XX_HW_CRB_HUB_AGT_ADR_##name << 20)
  44
  45static void qla82xx_crb_addr_transform_setup(void)
  46{
  47        qla82xx_crb_addr_transform(XDMA);
  48        qla82xx_crb_addr_transform(TIMR);
  49        qla82xx_crb_addr_transform(SRE);
  50        qla82xx_crb_addr_transform(SQN3);
  51        qla82xx_crb_addr_transform(SQN2);
  52        qla82xx_crb_addr_transform(SQN1);
  53        qla82xx_crb_addr_transform(SQN0);
  54        qla82xx_crb_addr_transform(SQS3);
  55        qla82xx_crb_addr_transform(SQS2);
  56        qla82xx_crb_addr_transform(SQS1);
  57        qla82xx_crb_addr_transform(SQS0);
  58        qla82xx_crb_addr_transform(RPMX7);
  59        qla82xx_crb_addr_transform(RPMX6);
  60        qla82xx_crb_addr_transform(RPMX5);
  61        qla82xx_crb_addr_transform(RPMX4);
  62        qla82xx_crb_addr_transform(RPMX3);
  63        qla82xx_crb_addr_transform(RPMX2);
  64        qla82xx_crb_addr_transform(RPMX1);
  65        qla82xx_crb_addr_transform(RPMX0);
  66        qla82xx_crb_addr_transform(ROMUSB);
  67        qla82xx_crb_addr_transform(SN);
  68        qla82xx_crb_addr_transform(QMN);
  69        qla82xx_crb_addr_transform(QMS);
  70        qla82xx_crb_addr_transform(PGNI);
  71        qla82xx_crb_addr_transform(PGND);
  72        qla82xx_crb_addr_transform(PGN3);
  73        qla82xx_crb_addr_transform(PGN2);
  74        qla82xx_crb_addr_transform(PGN1);
  75        qla82xx_crb_addr_transform(PGN0);
  76        qla82xx_crb_addr_transform(PGSI);
  77        qla82xx_crb_addr_transform(PGSD);
  78        qla82xx_crb_addr_transform(PGS3);
  79        qla82xx_crb_addr_transform(PGS2);
  80        qla82xx_crb_addr_transform(PGS1);
  81        qla82xx_crb_addr_transform(PGS0);
  82        qla82xx_crb_addr_transform(PS);
  83        qla82xx_crb_addr_transform(PH);
  84        qla82xx_crb_addr_transform(NIU);
  85        qla82xx_crb_addr_transform(I2Q);
  86        qla82xx_crb_addr_transform(EG);
  87        qla82xx_crb_addr_transform(MN);
  88        qla82xx_crb_addr_transform(MS);
  89        qla82xx_crb_addr_transform(CAS2);
  90        qla82xx_crb_addr_transform(CAS1);
  91        qla82xx_crb_addr_transform(CAS0);
  92        qla82xx_crb_addr_transform(CAM);
  93        qla82xx_crb_addr_transform(C2C1);
  94        qla82xx_crb_addr_transform(C2C0);
  95        qla82xx_crb_addr_transform(SMB);
  96        qla82xx_crb_addr_transform(OCM0);
  97        /*
  98         * Used only in P3 just define it for P2 also.
  99         */
 100        qla82xx_crb_addr_transform(I2C0);
 101
 102        qla82xx_crb_table_initialized = 1;
 103}
 104
 105struct crb_128M_2M_block_map crb_128M_2M_map[64] = {
 106        {{{0, 0,         0,         0} } },
 107        {{{1, 0x0100000, 0x0102000, 0x120000},
 108        {1, 0x0110000, 0x0120000, 0x130000},
 109        {1, 0x0120000, 0x0122000, 0x124000},
 110        {1, 0x0130000, 0x0132000, 0x126000},
 111        {1, 0x0140000, 0x0142000, 0x128000},
 112        {1, 0x0150000, 0x0152000, 0x12a000},
 113        {1, 0x0160000, 0x0170000, 0x110000},
 114        {1, 0x0170000, 0x0172000, 0x12e000},
 115        {0, 0x0000000, 0x0000000, 0x000000},
 116        {0, 0x0000000, 0x0000000, 0x000000},
 117        {0, 0x0000000, 0x0000000, 0x000000},
 118        {0, 0x0000000, 0x0000000, 0x000000},
 119        {0, 0x0000000, 0x0000000, 0x000000},
 120        {0, 0x0000000, 0x0000000, 0x000000},
 121        {1, 0x01e0000, 0x01e0800, 0x122000},
 122        {0, 0x0000000, 0x0000000, 0x000000} } } ,
 123        {{{1, 0x0200000, 0x0210000, 0x180000} } },
 124        {{{0, 0,         0,         0} } },
 125        {{{1, 0x0400000, 0x0401000, 0x169000} } },
 126        {{{1, 0x0500000, 0x0510000, 0x140000} } },
 127        {{{1, 0x0600000, 0x0610000, 0x1c0000} } },
 128        {{{1, 0x0700000, 0x0704000, 0x1b8000} } },
 129        {{{1, 0x0800000, 0x0802000, 0x170000},
 130        {0, 0x0000000, 0x0000000, 0x000000},
 131        {0, 0x0000000, 0x0000000, 0x000000},
 132        {0, 0x0000000, 0x0000000, 0x000000},
 133        {0, 0x0000000, 0x0000000, 0x000000},
 134        {0, 0x0000000, 0x0000000, 0x000000},
 135        {0, 0x0000000, 0x0000000, 0x000000},
 136        {0, 0x0000000, 0x0000000, 0x000000},
 137        {0, 0x0000000, 0x0000000, 0x000000},
 138        {0, 0x0000000, 0x0000000, 0x000000},
 139        {0, 0x0000000, 0x0000000, 0x000000},
 140        {0, 0x0000000, 0x0000000, 0x000000},
 141        {0, 0x0000000, 0x0000000, 0x000000},
 142        {0, 0x0000000, 0x0000000, 0x000000},
 143        {0, 0x0000000, 0x0000000, 0x000000},
 144        {1, 0x08f0000, 0x08f2000, 0x172000} } },
 145        {{{1, 0x0900000, 0x0902000, 0x174000},
 146        {0, 0x0000000, 0x0000000, 0x000000},
 147        {0, 0x0000000, 0x0000000, 0x000000},
 148        {0, 0x0000000, 0x0000000, 0x000000},
 149        {0, 0x0000000, 0x0000000, 0x000000},
 150        {0, 0x0000000, 0x0000000, 0x000000},
 151        {0, 0x0000000, 0x0000000, 0x000000},
 152        {0, 0x0000000, 0x0000000, 0x000000},
 153        {0, 0x0000000, 0x0000000, 0x000000},
 154        {0, 0x0000000, 0x0000000, 0x000000},
 155        {0, 0x0000000, 0x0000000, 0x000000},
 156        {0, 0x0000000, 0x0000000, 0x000000},
 157        {0, 0x0000000, 0x0000000, 0x000000},
 158        {0, 0x0000000, 0x0000000, 0x000000},
 159        {0, 0x0000000, 0x0000000, 0x000000},
 160        {1, 0x09f0000, 0x09f2000, 0x176000} } },
 161        {{{0, 0x0a00000, 0x0a02000, 0x178000},
 162        {0, 0x0000000, 0x0000000, 0x000000},
 163        {0, 0x0000000, 0x0000000, 0x000000},
 164        {0, 0x0000000, 0x0000000, 0x000000},
 165        {0, 0x0000000, 0x0000000, 0x000000},
 166        {0, 0x0000000, 0x0000000, 0x000000},
 167        {0, 0x0000000, 0x0000000, 0x000000},
 168        {0, 0x0000000, 0x0000000, 0x000000},
 169        {0, 0x0000000, 0x0000000, 0x000000},
 170        {0, 0x0000000, 0x0000000, 0x000000},
 171        {0, 0x0000000, 0x0000000, 0x000000},
 172        {0, 0x0000000, 0x0000000, 0x000000},
 173        {0, 0x0000000, 0x0000000, 0x000000},
 174        {0, 0x0000000, 0x0000000, 0x000000},
 175        {0, 0x0000000, 0x0000000, 0x000000},
 176        {1, 0x0af0000, 0x0af2000, 0x17a000} } },
 177        {{{0, 0x0b00000, 0x0b02000, 0x17c000},
 178        {0, 0x0000000, 0x0000000, 0x000000},
 179        {0, 0x0000000, 0x0000000, 0x000000},
 180        {0, 0x0000000, 0x0000000, 0x000000},
 181        {0, 0x0000000, 0x0000000, 0x000000},
 182        {0, 0x0000000, 0x0000000, 0x000000},
 183        {0, 0x0000000, 0x0000000, 0x000000},
 184        {0, 0x0000000, 0x0000000, 0x000000},
 185        {0, 0x0000000, 0x0000000, 0x000000},
 186        {0, 0x0000000, 0x0000000, 0x000000},
 187        {0, 0x0000000, 0x0000000, 0x000000},
 188        {0, 0x0000000, 0x0000000, 0x000000},
 189        {0, 0x0000000, 0x0000000, 0x000000},
 190        {0, 0x0000000, 0x0000000, 0x000000},
 191        {0, 0x0000000, 0x0000000, 0x000000},
 192        {1, 0x0bf0000, 0x0bf2000, 0x17e000} } },
 193        {{{1, 0x0c00000, 0x0c04000, 0x1d4000} } },
 194        {{{1, 0x0d00000, 0x0d04000, 0x1a4000} } },
 195        {{{1, 0x0e00000, 0x0e04000, 0x1a0000} } },
 196        {{{1, 0x0f00000, 0x0f01000, 0x164000} } },
 197        {{{0, 0x1000000, 0x1004000, 0x1a8000} } },
 198        {{{1, 0x1100000, 0x1101000, 0x160000} } },
 199        {{{1, 0x1200000, 0x1201000, 0x161000} } },
 200        {{{1, 0x1300000, 0x1301000, 0x162000} } },
 201        {{{1, 0x1400000, 0x1401000, 0x163000} } },
 202        {{{1, 0x1500000, 0x1501000, 0x165000} } },
 203        {{{1, 0x1600000, 0x1601000, 0x166000} } },
 204        {{{0, 0,         0,         0} } },
 205        {{{0, 0,         0,         0} } },
 206        {{{0, 0,         0,         0} } },
 207        {{{0, 0,         0,         0} } },
 208        {{{0, 0,         0,         0} } },
 209        {{{0, 0,         0,         0} } },
 210        {{{1, 0x1d00000, 0x1d10000, 0x190000} } },
 211        {{{1, 0x1e00000, 0x1e01000, 0x16a000} } },
 212        {{{1, 0x1f00000, 0x1f10000, 0x150000} } },
 213        {{{0} } },
 214        {{{1, 0x2100000, 0x2102000, 0x120000},
 215        {1, 0x2110000, 0x2120000, 0x130000},
 216        {1, 0x2120000, 0x2122000, 0x124000},
 217        {1, 0x2130000, 0x2132000, 0x126000},
 218        {1, 0x2140000, 0x2142000, 0x128000},
 219        {1, 0x2150000, 0x2152000, 0x12a000},
 220        {1, 0x2160000, 0x2170000, 0x110000},
 221        {1, 0x2170000, 0x2172000, 0x12e000},
 222        {0, 0x0000000, 0x0000000, 0x000000},
 223        {0, 0x0000000, 0x0000000, 0x000000},
 224        {0, 0x0000000, 0x0000000, 0x000000},
 225        {0, 0x0000000, 0x0000000, 0x000000},
 226        {0, 0x0000000, 0x0000000, 0x000000},
 227        {0, 0x0000000, 0x0000000, 0x000000},
 228        {0, 0x0000000, 0x0000000, 0x000000},
 229        {0, 0x0000000, 0x0000000, 0x000000} } },
 230        {{{1, 0x2200000, 0x2204000, 0x1b0000} } },
 231        {{{0} } },
 232        {{{0} } },
 233        {{{0} } },
 234        {{{0} } },
 235        {{{0} } },
 236        {{{1, 0x2800000, 0x2804000, 0x1a4000} } },
 237        {{{1, 0x2900000, 0x2901000, 0x16b000} } },
 238        {{{1, 0x2a00000, 0x2a00400, 0x1ac400} } },
 239        {{{1, 0x2b00000, 0x2b00400, 0x1ac800} } },
 240        {{{1, 0x2c00000, 0x2c00400, 0x1acc00} } },
 241        {{{1, 0x2d00000, 0x2d00400, 0x1ad000} } },
 242        {{{1, 0x2e00000, 0x2e00400, 0x1ad400} } },
 243        {{{1, 0x2f00000, 0x2f00400, 0x1ad800} } },
 244        {{{1, 0x3000000, 0x3000400, 0x1adc00} } },
 245        {{{0, 0x3100000, 0x3104000, 0x1a8000} } },
 246        {{{1, 0x3200000, 0x3204000, 0x1d4000} } },
 247        {{{1, 0x3300000, 0x3304000, 0x1a0000} } },
 248        {{{0} } },
 249        {{{1, 0x3500000, 0x3500400, 0x1ac000} } },
 250        {{{1, 0x3600000, 0x3600400, 0x1ae000} } },
 251        {{{1, 0x3700000, 0x3700400, 0x1ae400} } },
 252        {{{1, 0x3800000, 0x3804000, 0x1d0000} } },
 253        {{{1, 0x3900000, 0x3904000, 0x1b4000} } },
 254        {{{1, 0x3a00000, 0x3a04000, 0x1d8000} } },
 255        {{{0} } },
 256        {{{0} } },
 257        {{{1, 0x3d00000, 0x3d04000, 0x1dc000} } },
 258        {{{1, 0x3e00000, 0x3e01000, 0x167000} } },
 259        {{{1, 0x3f00000, 0x3f01000, 0x168000} } }
 260};
 261
 262/*
 263 * top 12 bits of crb internal address (hub, agent)
 264 */
 265unsigned qla82xx_crb_hub_agt[64] = {
 266        0,
 267        QLA82XX_HW_CRB_HUB_AGT_ADR_PS,
 268        QLA82XX_HW_CRB_HUB_AGT_ADR_MN,
 269        QLA82XX_HW_CRB_HUB_AGT_ADR_MS,
 270        0,
 271        QLA82XX_HW_CRB_HUB_AGT_ADR_SRE,
 272        QLA82XX_HW_CRB_HUB_AGT_ADR_NIU,
 273        QLA82XX_HW_CRB_HUB_AGT_ADR_QMN,
 274        QLA82XX_HW_CRB_HUB_AGT_ADR_SQN0,
 275        QLA82XX_HW_CRB_HUB_AGT_ADR_SQN1,
 276        QLA82XX_HW_CRB_HUB_AGT_ADR_SQN2,
 277        QLA82XX_HW_CRB_HUB_AGT_ADR_SQN3,
 278        QLA82XX_HW_CRB_HUB_AGT_ADR_I2Q,
 279        QLA82XX_HW_CRB_HUB_AGT_ADR_TIMR,
 280        QLA82XX_HW_CRB_HUB_AGT_ADR_ROMUSB,
 281        QLA82XX_HW_CRB_HUB_AGT_ADR_PGN4,
 282        QLA82XX_HW_CRB_HUB_AGT_ADR_XDMA,
 283        QLA82XX_HW_CRB_HUB_AGT_ADR_PGN0,
 284        QLA82XX_HW_CRB_HUB_AGT_ADR_PGN1,
 285        QLA82XX_HW_CRB_HUB_AGT_ADR_PGN2,
 286        QLA82XX_HW_CRB_HUB_AGT_ADR_PGN3,
 287        QLA82XX_HW_CRB_HUB_AGT_ADR_PGND,
 288        QLA82XX_HW_CRB_HUB_AGT_ADR_PGNI,
 289        QLA82XX_HW_CRB_HUB_AGT_ADR_PGS0,
 290        QLA82XX_HW_CRB_HUB_AGT_ADR_PGS1,
 291        QLA82XX_HW_CRB_HUB_AGT_ADR_PGS2,
 292        QLA82XX_HW_CRB_HUB_AGT_ADR_PGS3,
 293        0,
 294        QLA82XX_HW_CRB_HUB_AGT_ADR_PGSI,
 295        QLA82XX_HW_CRB_HUB_AGT_ADR_SN,
 296        0,
 297        QLA82XX_HW_CRB_HUB_AGT_ADR_EG,
 298        0,
 299        QLA82XX_HW_CRB_HUB_AGT_ADR_PS,
 300        QLA82XX_HW_CRB_HUB_AGT_ADR_CAM,
 301        0,
 302        0,
 303        0,
 304        0,
 305        0,
 306        QLA82XX_HW_CRB_HUB_AGT_ADR_TIMR,
 307        0,
 308        QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX1,
 309        QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX2,
 310        QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX3,
 311        QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX4,
 312        QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX5,
 313        QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX6,
 314        QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX7,
 315        QLA82XX_HW_CRB_HUB_AGT_ADR_XDMA,
 316        QLA82XX_HW_CRB_HUB_AGT_ADR_I2Q,
 317        QLA82XX_HW_CRB_HUB_AGT_ADR_ROMUSB,
 318        0,
 319        QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX0,
 320        QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX8,
 321        QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX9,
 322        QLA82XX_HW_CRB_HUB_AGT_ADR_OCM0,
 323        0,
 324        QLA82XX_HW_CRB_HUB_AGT_ADR_SMB,
 325        QLA82XX_HW_CRB_HUB_AGT_ADR_I2C0,
 326        QLA82XX_HW_CRB_HUB_AGT_ADR_I2C1,
 327        0,
 328        QLA82XX_HW_CRB_HUB_AGT_ADR_PGNC,
 329        0,
 330};
 331
 332/* Device states */
 333char *q_dev_state[] = {
 334         "Unknown",
 335        "Cold",
 336        "Initializing",
 337        "Ready",
 338        "Need Reset",
 339        "Need Quiescent",
 340        "Failed",
 341        "Quiescent",
 342};
 343
 344char *qdev_state(uint32_t dev_state)
 345{
 346        return q_dev_state[dev_state];
 347}
 348
 349/*
 350 * In: 'off' is offset from CRB space in 128M pci map
 351 * Out: 'off' is 2M pci map addr
 352 * side effect: lock crb window
 353 */
 354static void
 355qla82xx_pci_set_crbwindow_2M(struct qla_hw_data *ha, ulong *off)
 356{
 357        u32 win_read;
 358        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 359
 360        ha->crb_win = CRB_HI(*off);
 361        writel(ha->crb_win,
 362                (void *)(CRB_WINDOW_2M + ha->nx_pcibase));
 363
 364        /* Read back value to make sure write has gone through before trying
 365         * to use it.
 366         */
 367        win_read = RD_REG_DWORD((void *)(CRB_WINDOW_2M + ha->nx_pcibase));
 368        if (win_read != ha->crb_win) {
 369                ql_dbg(ql_dbg_p3p, vha, 0xb000,
 370                    "%s: Written crbwin (0x%x) "
 371                    "!= Read crbwin (0x%x), off=0x%lx.\n",
 372                    ha->crb_win, win_read, *off);
 373        }
 374        *off = (*off & MASK(16)) + CRB_INDIRECT_2M + ha->nx_pcibase;
 375}
 376
 377static inline unsigned long
 378qla82xx_pci_set_crbwindow(struct qla_hw_data *ha, u64 off)
 379{
 380        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 381        /* See if we are currently pointing to the region we want to use next */
 382        if ((off >= QLA82XX_CRB_PCIX_HOST) && (off < QLA82XX_CRB_DDR_NET)) {
 383                /* No need to change window. PCIX and PCIEregs are in both
 384                 * regs are in both windows.
 385                 */
 386                return off;
 387        }
 388
 389        if ((off >= QLA82XX_CRB_PCIX_HOST) && (off < QLA82XX_CRB_PCIX_HOST2)) {
 390                /* We are in first CRB window */
 391                if (ha->curr_window != 0)
 392                        WARN_ON(1);
 393                return off;
 394        }
 395
 396        if ((off > QLA82XX_CRB_PCIX_HOST2) && (off < QLA82XX_CRB_MAX)) {
 397                /* We are in second CRB window */
 398                off = off - QLA82XX_CRB_PCIX_HOST2 + QLA82XX_CRB_PCIX_HOST;
 399
 400                if (ha->curr_window != 1)
 401                        return off;
 402
 403                /* We are in the QM or direct access
 404                 * register region - do nothing
 405                 */
 406                if ((off >= QLA82XX_PCI_DIRECT_CRB) &&
 407                        (off < QLA82XX_PCI_CAMQM_MAX))
 408                        return off;
 409        }
 410        /* strange address given */
 411        ql_dbg(ql_dbg_p3p, vha, 0xb001,
 412            "%x: Warning: unm_nic_pci_set_crbwindow "
 413            "called with an unknown address(%llx).\n",
 414            QLA2XXX_DRIVER_NAME, off);
 415        return off;
 416}
 417
 418static int
 419qla82xx_pci_get_crb_addr_2M(struct qla_hw_data *ha, ulong *off)
 420{
 421        struct crb_128M_2M_sub_block_map *m;
 422
 423        if (*off >= QLA82XX_CRB_MAX)
 424                return -1;
 425
 426        if (*off >= QLA82XX_PCI_CAMQM && (*off < QLA82XX_PCI_CAMQM_2M_END)) {
 427                *off = (*off - QLA82XX_PCI_CAMQM) +
 428                    QLA82XX_PCI_CAMQM_2M_BASE + ha->nx_pcibase;
 429                return 0;
 430        }
 431
 432        if (*off < QLA82XX_PCI_CRBSPACE)
 433                return -1;
 434
 435        *off -= QLA82XX_PCI_CRBSPACE;
 436
 437        /* Try direct map */
 438        m = &crb_128M_2M_map[CRB_BLK(*off)].sub_block[CRB_SUBBLK(*off)];
 439
 440        if (m->valid && (m->start_128M <= *off) && (m->end_128M > *off)) {
 441                *off = *off + m->start_2M - m->start_128M + ha->nx_pcibase;
 442                return 0;
 443        }
 444        /* Not in direct map, use crb window */
 445        return 1;
 446}
 447
 448#define CRB_WIN_LOCK_TIMEOUT 100000000
 449static int qla82xx_crb_win_lock(struct qla_hw_data *ha)
 450{
 451        int done = 0, timeout = 0;
 452
 453        while (!done) {
 454                /* acquire semaphore3 from PCI HW block */
 455                done = qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_LOCK));
 456                if (done == 1)
 457                        break;
 458                if (timeout >= CRB_WIN_LOCK_TIMEOUT)
 459                        return -1;
 460                timeout++;
 461        }
 462        qla82xx_wr_32(ha, QLA82XX_CRB_WIN_LOCK_ID, ha->portnum);
 463        return 0;
 464}
 465
 466int
 467qla82xx_wr_32(struct qla_hw_data *ha, ulong off, u32 data)
 468{
 469        unsigned long flags = 0;
 470        int rv;
 471
 472        rv = qla82xx_pci_get_crb_addr_2M(ha, &off);
 473
 474        BUG_ON(rv == -1);
 475
 476        if (rv == 1) {
 477                write_lock_irqsave(&ha->hw_lock, flags);
 478                qla82xx_crb_win_lock(ha);
 479                qla82xx_pci_set_crbwindow_2M(ha, &off);
 480        }
 481
 482        writel(data, (void __iomem *)off);
 483
 484        if (rv == 1) {
 485                qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_UNLOCK));
 486                write_unlock_irqrestore(&ha->hw_lock, flags);
 487        }
 488        return 0;
 489}
 490
 491int
 492qla82xx_rd_32(struct qla_hw_data *ha, ulong off)
 493{
 494        unsigned long flags = 0;
 495        int rv;
 496        u32 data;
 497
 498        rv = qla82xx_pci_get_crb_addr_2M(ha, &off);
 499
 500        BUG_ON(rv == -1);
 501
 502        if (rv == 1) {
 503                write_lock_irqsave(&ha->hw_lock, flags);
 504                qla82xx_crb_win_lock(ha);
 505                qla82xx_pci_set_crbwindow_2M(ha, &off);
 506        }
 507        data = RD_REG_DWORD((void __iomem *)off);
 508
 509        if (rv == 1) {
 510                qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_UNLOCK));
 511                write_unlock_irqrestore(&ha->hw_lock, flags);
 512        }
 513        return data;
 514}
 515
 516#define IDC_LOCK_TIMEOUT 100000000
 517int qla82xx_idc_lock(struct qla_hw_data *ha)
 518{
 519        int i;
 520        int done = 0, timeout = 0;
 521
 522        while (!done) {
 523                /* acquire semaphore5 from PCI HW block */
 524                done = qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM5_LOCK));
 525                if (done == 1)
 526                        break;
 527                if (timeout >= IDC_LOCK_TIMEOUT)
 528                        return -1;
 529
 530                timeout++;
 531
 532                /* Yield CPU */
 533                if (!in_interrupt())
 534                        schedule();
 535                else {
 536                        for (i = 0; i < 20; i++)
 537                                cpu_relax();
 538                }
 539        }
 540
 541        return 0;
 542}
 543
 544void qla82xx_idc_unlock(struct qla_hw_data *ha)
 545{
 546        qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM5_UNLOCK));
 547}
 548
 549/*  PCI Windowing for DDR regions.  */
 550#define QLA82XX_ADDR_IN_RANGE(addr, low, high) \
 551        (((addr) <= (high)) && ((addr) >= (low)))
 552/*
 553 * check memory access boundary.
 554 * used by test agent. support ddr access only for now
 555 */
 556static unsigned long
 557qla82xx_pci_mem_bound_check(struct qla_hw_data *ha,
 558        unsigned long long addr, int size)
 559{
 560        if (!QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_DDR_NET,
 561                QLA82XX_ADDR_DDR_NET_MAX) ||
 562                !QLA82XX_ADDR_IN_RANGE(addr + size - 1, QLA82XX_ADDR_DDR_NET,
 563                QLA82XX_ADDR_DDR_NET_MAX) ||
 564                ((size != 1) && (size != 2) && (size != 4) && (size != 8)))
 565                        return 0;
 566        else
 567                return 1;
 568}
 569
 570int qla82xx_pci_set_window_warning_count;
 571
 572static unsigned long
 573qla82xx_pci_set_window(struct qla_hw_data *ha, unsigned long long addr)
 574{
 575        int window;
 576        u32 win_read;
 577        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 578
 579        if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_DDR_NET,
 580                QLA82XX_ADDR_DDR_NET_MAX)) {
 581                /* DDR network side */
 582                window = MN_WIN(addr);
 583                ha->ddr_mn_window = window;
 584                qla82xx_wr_32(ha,
 585                        ha->mn_win_crb | QLA82XX_PCI_CRBSPACE, window);
 586                win_read = qla82xx_rd_32(ha,
 587                        ha->mn_win_crb | QLA82XX_PCI_CRBSPACE);
 588                if ((win_read << 17) != window) {
 589                        ql_dbg(ql_dbg_p3p, vha, 0xb003,
 590                            "%s: Written MNwin (0x%x) != Read MNwin (0x%x).\n",
 591                            __func__, window, win_read);
 592                }
 593                addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_DDR_NET;
 594        } else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_OCM0,
 595                QLA82XX_ADDR_OCM0_MAX)) {
 596                unsigned int temp1;
 597                if ((addr & 0x00ff800) == 0xff800) {
 598                        ql_log(ql_log_warn, vha, 0xb004,
 599                            "%s: QM access not handled.\n", __func__);
 600                        addr = -1UL;
 601                }
 602                window = OCM_WIN(addr);
 603                ha->ddr_mn_window = window;
 604                qla82xx_wr_32(ha,
 605                        ha->mn_win_crb | QLA82XX_PCI_CRBSPACE, window);
 606                win_read = qla82xx_rd_32(ha,
 607                        ha->mn_win_crb | QLA82XX_PCI_CRBSPACE);
 608                temp1 = ((window & 0x1FF) << 7) |
 609                    ((window & 0x0FFFE0000) >> 17);
 610                if (win_read != temp1) {
 611                        ql_log(ql_log_warn, vha, 0xb005,
 612                            "%s: Written OCMwin (0x%x) != Read OCMwin (0x%x).\n",
 613                            __func__, temp1, win_read);
 614                }
 615                addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_OCM0_2M;
 616
 617        } else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_QDR_NET,
 618                QLA82XX_P3_ADDR_QDR_NET_MAX)) {
 619                /* QDR network side */
 620                window = MS_WIN(addr);
 621                ha->qdr_sn_window = window;
 622                qla82xx_wr_32(ha,
 623                        ha->ms_win_crb | QLA82XX_PCI_CRBSPACE, window);
 624                win_read = qla82xx_rd_32(ha,
 625                        ha->ms_win_crb | QLA82XX_PCI_CRBSPACE);
 626                if (win_read != window) {
 627                        ql_log(ql_log_warn, vha, 0xb006,
 628                            "%s: Written MSwin (0x%x) != Read MSwin (0x%x).\n",
 629                            __func__, window, win_read);
 630                }
 631                addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_QDR_NET;
 632        } else {
 633                /*
 634                 * peg gdb frequently accesses memory that doesn't exist,
 635                 * this limits the chit chat so debugging isn't slowed down.
 636                 */
 637                if ((qla82xx_pci_set_window_warning_count++ < 8) ||
 638                    (qla82xx_pci_set_window_warning_count%64 == 0)) {
 639                        ql_log(ql_log_warn, vha, 0xb007,
 640                            "%s: Warning:%s Unknown address range!.\n",
 641                            __func__, QLA2XXX_DRIVER_NAME);
 642                }
 643                addr = -1UL;
 644        }
 645        return addr;
 646}
 647
 648/* check if address is in the same windows as the previous access */
 649static int qla82xx_pci_is_same_window(struct qla_hw_data *ha,
 650        unsigned long long addr)
 651{
 652        int                     window;
 653        unsigned long long      qdr_max;
 654
 655        qdr_max = QLA82XX_P3_ADDR_QDR_NET_MAX;
 656
 657        /* DDR network side */
 658        if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_DDR_NET,
 659                QLA82XX_ADDR_DDR_NET_MAX))
 660                BUG();
 661        else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_OCM0,
 662                QLA82XX_ADDR_OCM0_MAX))
 663                return 1;
 664        else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_OCM1,
 665                QLA82XX_ADDR_OCM1_MAX))
 666                return 1;
 667        else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_QDR_NET, qdr_max)) {
 668                /* QDR network side */
 669                window = ((addr - QLA82XX_ADDR_QDR_NET) >> 22) & 0x3f;
 670                if (ha->qdr_sn_window == window)
 671                        return 1;
 672        }
 673        return 0;
 674}
 675
 676static int qla82xx_pci_mem_read_direct(struct qla_hw_data *ha,
 677        u64 off, void *data, int size)
 678{
 679        unsigned long   flags;
 680        void           *addr = NULL;
 681        int             ret = 0;
 682        u64             start;
 683        uint8_t         *mem_ptr = NULL;
 684        unsigned long   mem_base;
 685        unsigned long   mem_page;
 686        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 687
 688        write_lock_irqsave(&ha->hw_lock, flags);
 689
 690        /*
 691         * If attempting to access unknown address or straddle hw windows,
 692         * do not access.
 693         */
 694        start = qla82xx_pci_set_window(ha, off);
 695        if ((start == -1UL) ||
 696                (qla82xx_pci_is_same_window(ha, off + size - 1) == 0)) {
 697                write_unlock_irqrestore(&ha->hw_lock, flags);
 698                ql_log(ql_log_fatal, vha, 0xb008,
 699                    "%s out of bound pci memory "
 700                    "access, offset is 0x%llx.\n",
 701                    QLA2XXX_DRIVER_NAME, off);
 702                return -1;
 703        }
 704
 705        write_unlock_irqrestore(&ha->hw_lock, flags);
 706        mem_base = pci_resource_start(ha->pdev, 0);
 707        mem_page = start & PAGE_MASK;
 708        /* Map two pages whenever user tries to access addresses in two
 709        * consecutive pages.
 710        */
 711        if (mem_page != ((start + size - 1) & PAGE_MASK))
 712                mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE * 2);
 713        else
 714                mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE);
 715        if (mem_ptr == 0UL) {
 716                *(u8  *)data = 0;
 717                return -1;
 718        }
 719        addr = mem_ptr;
 720        addr += start & (PAGE_SIZE - 1);
 721        write_lock_irqsave(&ha->hw_lock, flags);
 722
 723        switch (size) {
 724        case 1:
 725                *(u8  *)data = readb(addr);
 726                break;
 727        case 2:
 728                *(u16 *)data = readw(addr);
 729                break;
 730        case 4:
 731                *(u32 *)data = readl(addr);
 732                break;
 733        case 8:
 734                *(u64 *)data = readq(addr);
 735                break;
 736        default:
 737                ret = -1;
 738                break;
 739        }
 740        write_unlock_irqrestore(&ha->hw_lock, flags);
 741
 742        if (mem_ptr)
 743                iounmap(mem_ptr);
 744        return ret;
 745}
 746
 747static int
 748qla82xx_pci_mem_write_direct(struct qla_hw_data *ha,
 749        u64 off, void *data, int size)
 750{
 751        unsigned long   flags;
 752        void           *addr = NULL;
 753        int             ret = 0;
 754        u64             start;
 755        uint8_t         *mem_ptr = NULL;
 756        unsigned long   mem_base;
 757        unsigned long   mem_page;
 758        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 759
 760        write_lock_irqsave(&ha->hw_lock, flags);
 761
 762        /*
 763         * If attempting to access unknown address or straddle hw windows,
 764         * do not access.
 765         */
 766        start = qla82xx_pci_set_window(ha, off);
 767        if ((start == -1UL) ||
 768                (qla82xx_pci_is_same_window(ha, off + size - 1) == 0)) {
 769                write_unlock_irqrestore(&ha->hw_lock, flags);
 770                ql_log(ql_log_fatal, vha, 0xb009,
 771                    "%s out of bount memory "
 772                    "access, offset is 0x%llx.\n",
 773                    QLA2XXX_DRIVER_NAME, off);
 774                return -1;
 775        }
 776
 777        write_unlock_irqrestore(&ha->hw_lock, flags);
 778        mem_base = pci_resource_start(ha->pdev, 0);
 779        mem_page = start & PAGE_MASK;
 780        /* Map two pages whenever user tries to access addresses in two
 781         * consecutive pages.
 782         */
 783        if (mem_page != ((start + size - 1) & PAGE_MASK))
 784                mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE*2);
 785        else
 786                mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE);
 787        if (mem_ptr == 0UL)
 788                return -1;
 789
 790        addr = mem_ptr;
 791        addr += start & (PAGE_SIZE - 1);
 792        write_lock_irqsave(&ha->hw_lock, flags);
 793
 794        switch (size) {
 795        case 1:
 796                writeb(*(u8  *)data, addr);
 797                break;
 798        case 2:
 799                writew(*(u16 *)data, addr);
 800                break;
 801        case 4:
 802                writel(*(u32 *)data, addr);
 803                break;
 804        case 8:
 805                writeq(*(u64 *)data, addr);
 806                break;
 807        default:
 808                ret = -1;
 809                break;
 810        }
 811        write_unlock_irqrestore(&ha->hw_lock, flags);
 812        if (mem_ptr)
 813                iounmap(mem_ptr);
 814        return ret;
 815}
 816
 817#define MTU_FUDGE_FACTOR 100
 818static unsigned long
 819qla82xx_decode_crb_addr(unsigned long addr)
 820{
 821        int i;
 822        unsigned long base_addr, offset, pci_base;
 823
 824        if (!qla82xx_crb_table_initialized)
 825                qla82xx_crb_addr_transform_setup();
 826
 827        pci_base = ADDR_ERROR;
 828        base_addr = addr & 0xfff00000;
 829        offset = addr & 0x000fffff;
 830
 831        for (i = 0; i < MAX_CRB_XFORM; i++) {
 832                if (crb_addr_xform[i] == base_addr) {
 833                        pci_base = i << 20;
 834                        break;
 835                }
 836        }
 837        if (pci_base == ADDR_ERROR)
 838                return pci_base;
 839        return pci_base + offset;
 840}
 841
 842static long rom_max_timeout = 100;
 843static long qla82xx_rom_lock_timeout = 100;
 844
 845static int
 846qla82xx_rom_lock(struct qla_hw_data *ha)
 847{
 848        int done = 0, timeout = 0;
 849
 850        while (!done) {
 851                /* acquire semaphore2 from PCI HW block */
 852                done = qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_LOCK));
 853                if (done == 1)
 854                        break;
 855                if (timeout >= qla82xx_rom_lock_timeout)
 856                        return -1;
 857                timeout++;
 858        }
 859        qla82xx_wr_32(ha, QLA82XX_ROM_LOCK_ID, ROM_LOCK_DRIVER);
 860        return 0;
 861}
 862
 863static void
 864qla82xx_rom_unlock(struct qla_hw_data *ha)
 865{
 866        qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_UNLOCK));
 867}
 868
 869static int
 870qla82xx_wait_rom_busy(struct qla_hw_data *ha)
 871{
 872        long timeout = 0;
 873        long done = 0 ;
 874        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 875
 876        while (done == 0) {
 877                done = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_STATUS);
 878                done &= 4;
 879                timeout++;
 880                if (timeout >= rom_max_timeout) {
 881                        ql_dbg(ql_dbg_p3p, vha, 0xb00a,
 882                            "%s: Timeout reached waiting for rom busy.\n",
 883                            QLA2XXX_DRIVER_NAME);
 884                        return -1;
 885                }
 886        }
 887        return 0;
 888}
 889
 890static int
 891qla82xx_wait_rom_done(struct qla_hw_data *ha)
 892{
 893        long timeout = 0;
 894        long done = 0 ;
 895        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 896
 897        while (done == 0) {
 898                done = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_STATUS);
 899                done &= 2;
 900                timeout++;
 901                if (timeout >= rom_max_timeout) {
 902                        ql_dbg(ql_dbg_p3p, vha, 0xb00b,
 903                            "%s: Timeout reached waiting for rom done.\n",
 904                            QLA2XXX_DRIVER_NAME);
 905                        return -1;
 906                }
 907        }
 908        return 0;
 909}
 910
 911static int
 912qla82xx_do_rom_fast_read(struct qla_hw_data *ha, int addr, int *valp)
 913{
 914        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 915
 916        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ADDRESS, addr);
 917        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
 918        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 3);
 919        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, 0xb);
 920        qla82xx_wait_rom_busy(ha);
 921        if (qla82xx_wait_rom_done(ha)) {
 922                ql_log(ql_log_fatal, vha, 0x00ba,
 923                    "Error waiting for rom done.\n");
 924                return -1;
 925        }
 926        /* Reset abyte_cnt and dummy_byte_cnt */
 927        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
 928        udelay(10);
 929        cond_resched();
 930        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 0);
 931        *valp = qla82xx_rd_32(ha, QLA82XX_ROMUSB_ROM_RDATA);
 932        return 0;
 933}
 934
 935static int
 936qla82xx_rom_fast_read(struct qla_hw_data *ha, int addr, int *valp)
 937{
 938        int ret, loops = 0;
 939        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 940
 941        while ((qla82xx_rom_lock(ha) != 0) && (loops < 50000)) {
 942                udelay(100);
 943                schedule();
 944                loops++;
 945        }
 946        if (loops >= 50000) {
 947                ql_log(ql_log_fatal, vha, 0x00b9,
 948                    "Failed to aquire SEM2 lock.\n");
 949                return -1;
 950        }
 951        ret = qla82xx_do_rom_fast_read(ha, addr, valp);
 952        qla82xx_rom_unlock(ha);
 953        return ret;
 954}
 955
 956static int
 957qla82xx_read_status_reg(struct qla_hw_data *ha, uint32_t *val)
 958{
 959        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 960        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_RDSR);
 961        qla82xx_wait_rom_busy(ha);
 962        if (qla82xx_wait_rom_done(ha)) {
 963                ql_log(ql_log_warn, vha, 0xb00c,
 964                    "Error waiting for rom done.\n");
 965                return -1;
 966        }
 967        *val = qla82xx_rd_32(ha, QLA82XX_ROMUSB_ROM_RDATA);
 968        return 0;
 969}
 970
 971static int
 972qla82xx_flash_wait_write_finish(struct qla_hw_data *ha)
 973{
 974        long timeout = 0;
 975        uint32_t done = 1 ;
 976        uint32_t val;
 977        int ret = 0;
 978        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 979
 980        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 0);
 981        while ((done != 0) && (ret == 0)) {
 982                ret = qla82xx_read_status_reg(ha, &val);
 983                done = val & 1;
 984                timeout++;
 985                udelay(10);
 986                cond_resched();
 987                if (timeout >= 50000) {
 988                        ql_log(ql_log_warn, vha, 0xb00d,
 989                            "Timeout reached waiting for write finish.\n");
 990                        return -1;
 991                }
 992        }
 993        return ret;
 994}
 995
 996static int
 997qla82xx_flash_set_write_enable(struct qla_hw_data *ha)
 998{
 999        uint32_t val;
1000        qla82xx_wait_rom_busy(ha);
1001        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 0);
1002        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_WREN);
1003        qla82xx_wait_rom_busy(ha);
1004        if (qla82xx_wait_rom_done(ha))
1005                return -1;
1006        if (qla82xx_read_status_reg(ha, &val) != 0)
1007                return -1;
1008        if ((val & 2) != 2)
1009                return -1;
1010        return 0;
1011}
1012
1013static int
1014qla82xx_write_status_reg(struct qla_hw_data *ha, uint32_t val)
1015{
1016        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1017        if (qla82xx_flash_set_write_enable(ha))
1018                return -1;
1019        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_WDATA, val);
1020        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, 0x1);
1021        if (qla82xx_wait_rom_done(ha)) {
1022                ql_log(ql_log_warn, vha, 0xb00e,
1023                    "Error waiting for rom done.\n");
1024                return -1;
1025        }
1026        return qla82xx_flash_wait_write_finish(ha);
1027}
1028
1029static int
1030qla82xx_write_disable_flash(struct qla_hw_data *ha)
1031{
1032        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1033        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_WRDI);
1034        if (qla82xx_wait_rom_done(ha)) {
1035                ql_log(ql_log_warn, vha, 0xb00f,
1036                    "Error waiting for rom done.\n");
1037                return -1;
1038        }
1039        return 0;
1040}
1041
1042static int
1043ql82xx_rom_lock_d(struct qla_hw_data *ha)
1044{
1045        int loops = 0;
1046        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1047
1048        while ((qla82xx_rom_lock(ha) != 0) && (loops < 50000)) {
1049                udelay(100);
1050                cond_resched();
1051                loops++;
1052        }
1053        if (loops >= 50000) {
1054                ql_log(ql_log_warn, vha, 0xb010,
1055                    "ROM lock failed.\n");
1056                return -1;
1057        }
1058        return 0;;
1059}
1060
1061static int
1062qla82xx_write_flash_dword(struct qla_hw_data *ha, uint32_t flashaddr,
1063        uint32_t data)
1064{
1065        int ret = 0;
1066        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1067
1068        ret = ql82xx_rom_lock_d(ha);
1069        if (ret < 0) {
1070                ql_log(ql_log_warn, vha, 0xb011,
1071                    "ROM lock failed.\n");
1072                return ret;
1073        }
1074
1075        if (qla82xx_flash_set_write_enable(ha))
1076                goto done_write;
1077
1078        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_WDATA, data);
1079        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ADDRESS, flashaddr);
1080        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 3);
1081        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_PP);
1082        qla82xx_wait_rom_busy(ha);
1083        if (qla82xx_wait_rom_done(ha)) {
1084                ql_log(ql_log_warn, vha, 0xb012,
1085                    "Error waiting for rom done.\n");
1086                ret = -1;
1087                goto done_write;
1088        }
1089
1090        ret = qla82xx_flash_wait_write_finish(ha);
1091
1092done_write:
1093        qla82xx_rom_unlock(ha);
1094        return ret;
1095}
1096
1097/* This routine does CRB initialize sequence
1098 *  to put the ISP into operational state
1099 */
1100static int
1101qla82xx_pinit_from_rom(scsi_qla_host_t *vha)
1102{
1103        int addr, val;
1104        int i ;
1105        struct crb_addr_pair *buf;
1106        unsigned long off;
1107        unsigned offset, n;
1108        struct qla_hw_data *ha = vha->hw;
1109
1110        struct crb_addr_pair {
1111                long addr;
1112                long data;
1113        };
1114
1115        /* Halt all the indiviual PEGs and other blocks of the ISP */
1116        qla82xx_rom_lock(ha);
1117
1118        /* disable all I2Q */
1119        qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x10, 0x0);
1120        qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x14, 0x0);
1121        qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x18, 0x0);
1122        qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x1c, 0x0);
1123        qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x20, 0x0);
1124        qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x24, 0x0);
1125
1126        /* disable all niu interrupts */
1127        qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x40, 0xff);
1128        /* disable xge rx/tx */
1129        qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x70000, 0x00);
1130        /* disable xg1 rx/tx */
1131        qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x80000, 0x00);
1132        /* disable sideband mac */
1133        qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x90000, 0x00);
1134        /* disable ap0 mac */
1135        qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0xa0000, 0x00);
1136        /* disable ap1 mac */
1137        qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0xb0000, 0x00);
1138
1139        /* halt sre */
1140        val = qla82xx_rd_32(ha, QLA82XX_CRB_SRE + 0x1000);
1141        qla82xx_wr_32(ha, QLA82XX_CRB_SRE + 0x1000, val & (~(0x1)));
1142
1143        /* halt epg */
1144        qla82xx_wr_32(ha, QLA82XX_CRB_EPG + 0x1300, 0x1);
1145
1146        /* halt timers */
1147        qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x0, 0x0);
1148        qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x8, 0x0);
1149        qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x10, 0x0);
1150        qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x18, 0x0);
1151        qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x100, 0x0);
1152        qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x200, 0x0);
1153
1154        /* halt pegs */
1155        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x3c, 1);
1156        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1 + 0x3c, 1);
1157        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2 + 0x3c, 1);
1158        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3 + 0x3c, 1);
1159        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_4 + 0x3c, 1);
1160        msleep(20);
1161
1162        /* big hammer */
1163        if (test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
1164                /* don't reset CAM block on reset */
1165                qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xfeffffff);
1166        else
1167                qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xffffffff);
1168
1169        /* reset ms */
1170        val = qla82xx_rd_32(ha, QLA82XX_CRB_QDR_NET + 0xe4);
1171        val |= (1 << 1);
1172        qla82xx_wr_32(ha, QLA82XX_CRB_QDR_NET + 0xe4, val);
1173        msleep(20);
1174
1175        /* unreset ms */
1176        val = qla82xx_rd_32(ha, QLA82XX_CRB_QDR_NET + 0xe4);
1177        val &= ~(1 << 1);
1178        qla82xx_wr_32(ha, QLA82XX_CRB_QDR_NET + 0xe4, val);
1179        msleep(20);
1180
1181        qla82xx_rom_unlock(ha);
1182
1183        /* Read the signature value from the flash.
1184         * Offset 0: Contain signature (0xcafecafe)
1185         * Offset 4: Offset and number of addr/value pairs
1186         * that present in CRB initialize sequence
1187         */
1188        if (qla82xx_rom_fast_read(ha, 0, &n) != 0 || n != 0xcafecafeUL ||
1189            qla82xx_rom_fast_read(ha, 4, &n) != 0) {
1190                ql_log(ql_log_fatal, vha, 0x006e,
1191                    "Error Reading crb_init area: n: %08x.\n", n);
1192                return -1;
1193        }
1194
1195        /* Offset in flash = lower 16 bits
1196         * Number of enteries = upper 16 bits
1197         */
1198        offset = n & 0xffffU;
1199        n = (n >> 16) & 0xffffU;
1200
1201        /* number of addr/value pair should not exceed 1024 enteries */
1202        if (n  >= 1024) {
1203                ql_log(ql_log_fatal, vha, 0x0071,
1204                    "Card flash not initialized:n=0x%x.\n", n);
1205                return -1;
1206        }
1207
1208        ql_log(ql_log_info, vha, 0x0072,
1209            "%d CRB init values found in ROM.\n", n);
1210
1211        buf = kmalloc(n * sizeof(struct crb_addr_pair), GFP_KERNEL);
1212        if (buf == NULL) {
1213                ql_log(ql_log_fatal, vha, 0x010c,
1214                    "Unable to allocate memory.\n");
1215                return -1;
1216        }
1217
1218        for (i = 0; i < n; i++) {
1219                if (qla82xx_rom_fast_read(ha, 8*i + 4*offset, &val) != 0 ||
1220                    qla82xx_rom_fast_read(ha, 8*i + 4*offset + 4, &addr) != 0) {
1221                        kfree(buf);
1222                        return -1;
1223                }
1224
1225                buf[i].addr = addr;
1226                buf[i].data = val;
1227        }
1228
1229        for (i = 0; i < n; i++) {
1230                /* Translate internal CRB initialization
1231                 * address to PCI bus address
1232                 */
1233                off = qla82xx_decode_crb_addr((unsigned long)buf[i].addr) +
1234                    QLA82XX_PCI_CRBSPACE;
1235                /* Not all CRB  addr/value pair to be written,
1236                 * some of them are skipped
1237                 */
1238
1239                /* skipping cold reboot MAGIC */
1240                if (off == QLA82XX_CAM_RAM(0x1fc))
1241                        continue;
1242
1243                /* do not reset PCI */
1244                if (off == (ROMUSB_GLB + 0xbc))
1245                        continue;
1246
1247                /* skip core clock, so that firmware can increase the clock */
1248                if (off == (ROMUSB_GLB + 0xc8))
1249                        continue;
1250
1251                /* skip the function enable register */
1252                if (off == QLA82XX_PCIE_REG(PCIE_SETUP_FUNCTION))
1253                        continue;
1254
1255                if (off == QLA82XX_PCIE_REG(PCIE_SETUP_FUNCTION2))
1256                        continue;
1257
1258                if ((off & 0x0ff00000) == QLA82XX_CRB_SMB)
1259                        continue;
1260
1261                if ((off & 0x0ff00000) == QLA82XX_CRB_DDR_NET)
1262                        continue;
1263
1264                if (off == ADDR_ERROR) {
1265                        ql_log(ql_log_fatal, vha, 0x0116,
1266                            "Unknow addr: 0x%08lx.\n", buf[i].addr);
1267                        continue;
1268                }
1269
1270                qla82xx_wr_32(ha, off, buf[i].data);
1271
1272                /* ISP requires much bigger delay to settle down,
1273                 * else crb_window returns 0xffffffff
1274                 */
1275                if (off == QLA82XX_ROMUSB_GLB_SW_RESET)
1276                        msleep(1000);
1277
1278                /* ISP requires millisec delay between
1279                 * successive CRB register updation
1280                 */
1281                msleep(1);
1282        }
1283
1284        kfree(buf);
1285
1286        /* Resetting the data and instruction cache */
1287        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0xec, 0x1e);
1288        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0x4c, 8);
1289        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_I+0x4c, 8);
1290
1291        /* Clear all protocol processing engines */
1292        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0x8, 0);
1293        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0xc, 0);
1294        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0x8, 0);
1295        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0xc, 0);
1296        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0x8, 0);
1297        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0xc, 0);
1298        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0x8, 0);
1299        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0xc, 0);
1300        return 0;
1301}
1302
1303static int
1304qla82xx_pci_mem_write_2M(struct qla_hw_data *ha,
1305                u64 off, void *data, int size)
1306{
1307        int i, j, ret = 0, loop, sz[2], off0;
1308        int scale, shift_amount, startword;
1309        uint32_t temp;
1310        uint64_t off8, mem_crb, tmpw, word[2] = {0, 0};
1311
1312        /*
1313         * If not MN, go check for MS or invalid.
1314         */
1315        if (off >= QLA82XX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX)
1316                mem_crb = QLA82XX_CRB_QDR_NET;
1317        else {
1318                mem_crb = QLA82XX_CRB_DDR_NET;
1319                if (qla82xx_pci_mem_bound_check(ha, off, size) == 0)
1320                        return qla82xx_pci_mem_write_direct(ha,
1321                            off, data, size);
1322        }
1323
1324        off0 = off & 0x7;
1325        sz[0] = (size < (8 - off0)) ? size : (8 - off0);
1326        sz[1] = size - sz[0];
1327
1328        off8 = off & 0xfffffff0;
1329        loop = (((off & 0xf) + size - 1) >> 4) + 1;
1330        shift_amount = 4;
1331        scale = 2;
1332        startword = (off & 0xf)/8;
1333
1334        for (i = 0; i < loop; i++) {
1335                if (qla82xx_pci_mem_read_2M(ha, off8 +
1336                    (i << shift_amount), &word[i * scale], 8))
1337                        return -1;
1338        }
1339
1340        switch (size) {
1341        case 1:
1342                tmpw = *((uint8_t *)data);
1343                break;
1344        case 2:
1345                tmpw = *((uint16_t *)data);
1346                break;
1347        case 4:
1348                tmpw = *((uint32_t *)data);
1349                break;
1350        case 8:
1351        default:
1352                tmpw = *((uint64_t *)data);
1353                break;
1354        }
1355
1356        if (sz[0] == 8) {
1357                word[startword] = tmpw;
1358        } else {
1359                word[startword] &=
1360                        ~((~(~0ULL << (sz[0] * 8))) << (off0 * 8));
1361                word[startword] |= tmpw << (off0 * 8);
1362        }
1363        if (sz[1] != 0) {
1364                word[startword+1] &= ~(~0ULL << (sz[1] * 8));
1365                word[startword+1] |= tmpw >> (sz[0] * 8);
1366        }
1367
1368        for (i = 0; i < loop; i++) {
1369                temp = off8 + (i << shift_amount);
1370                qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_LO, temp);
1371                temp = 0;
1372                qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_HI, temp);
1373                temp = word[i * scale] & 0xffffffff;
1374                qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_LO, temp);
1375                temp = (word[i * scale] >> 32) & 0xffffffff;
1376                qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_HI, temp);
1377                temp = word[i*scale + 1] & 0xffffffff;
1378                qla82xx_wr_32(ha, mem_crb +
1379                    MIU_TEST_AGT_WRDATA_UPPER_LO, temp);
1380                temp = (word[i*scale + 1] >> 32) & 0xffffffff;
1381                qla82xx_wr_32(ha, mem_crb +
1382                    MIU_TEST_AGT_WRDATA_UPPER_HI, temp);
1383
1384                temp = MIU_TA_CTL_ENABLE | MIU_TA_CTL_WRITE;
1385                qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1386                temp = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE | MIU_TA_CTL_WRITE;
1387                qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1388
1389                for (j = 0; j < MAX_CTL_CHECK; j++) {
1390                        temp = qla82xx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL);
1391                        if ((temp & MIU_TA_CTL_BUSY) == 0)
1392                                break;
1393                }
1394
1395                if (j >= MAX_CTL_CHECK) {
1396                        if (printk_ratelimit())
1397                                dev_err(&ha->pdev->dev,
1398                                    "failed to write through agent.\n");
1399                        ret = -1;
1400                        break;
1401                }
1402        }
1403
1404        return ret;
1405}
1406
1407static int
1408qla82xx_fw_load_from_flash(struct qla_hw_data *ha)
1409{
1410        int  i;
1411        long size = 0;
1412        long flashaddr = ha->flt_region_bootload << 2;
1413        long memaddr = BOOTLD_START;
1414        u64 data;
1415        u32 high, low;
1416        size = (IMAGE_START - BOOTLD_START) / 8;
1417
1418        for (i = 0; i < size; i++) {
1419                if ((qla82xx_rom_fast_read(ha, flashaddr, (int *)&low)) ||
1420                    (qla82xx_rom_fast_read(ha, flashaddr + 4, (int *)&high))) {
1421                        return -1;
1422                }
1423                data = ((u64)high << 32) | low ;
1424                qla82xx_pci_mem_write_2M(ha, memaddr, &data, 8);
1425                flashaddr += 8;
1426                memaddr += 8;
1427
1428                if (i % 0x1000 == 0)
1429                        msleep(1);
1430        }
1431        udelay(100);
1432        read_lock(&ha->hw_lock);
1433        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x18, 0x1020);
1434        qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0x80001e);
1435        read_unlock(&ha->hw_lock);
1436        return 0;
1437}
1438
1439int
1440qla82xx_pci_mem_read_2M(struct qla_hw_data *ha,
1441                u64 off, void *data, int size)
1442{
1443        int i, j = 0, k, start, end, loop, sz[2], off0[2];
1444        int           shift_amount;
1445        uint32_t      temp;
1446        uint64_t      off8, val, mem_crb, word[2] = {0, 0};
1447
1448        /*
1449         * If not MN, go check for MS or invalid.
1450         */
1451
1452        if (off >= QLA82XX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX)
1453                mem_crb = QLA82XX_CRB_QDR_NET;
1454        else {
1455                mem_crb = QLA82XX_CRB_DDR_NET;
1456                if (qla82xx_pci_mem_bound_check(ha, off, size) == 0)
1457                        return qla82xx_pci_mem_read_direct(ha,
1458                            off, data, size);
1459        }
1460
1461        off8 = off & 0xfffffff0;
1462        off0[0] = off & 0xf;
1463        sz[0] = (size < (16 - off0[0])) ? size : (16 - off0[0]);
1464        shift_amount = 4;
1465        loop = ((off0[0] + size - 1) >> shift_amount) + 1;
1466        off0[1] = 0;
1467        sz[1] = size - sz[0];
1468
1469        for (i = 0; i < loop; i++) {
1470                temp = off8 + (i << shift_amount);
1471                qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_LO, temp);
1472                temp = 0;
1473                qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_HI, temp);
1474                temp = MIU_TA_CTL_ENABLE;
1475                qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1476                temp = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE;
1477                qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1478
1479                for (j = 0; j < MAX_CTL_CHECK; j++) {
1480                        temp = qla82xx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL);
1481                        if ((temp & MIU_TA_CTL_BUSY) == 0)
1482                                break;
1483                }
1484
1485                if (j >= MAX_CTL_CHECK) {
1486                        if (printk_ratelimit())
1487                                dev_err(&ha->pdev->dev,
1488                                    "failed to read through agent.\n");
1489                        break;
1490                }
1491
1492                start = off0[i] >> 2;
1493                end   = (off0[i] + sz[i] - 1) >> 2;
1494                for (k = start; k <= end; k++) {
1495                        temp = qla82xx_rd_32(ha,
1496                                        mem_crb + MIU_TEST_AGT_RDDATA(k));
1497                        word[i] |= ((uint64_t)temp << (32 * (k & 1)));
1498                }
1499        }
1500
1501        if (j >= MAX_CTL_CHECK)
1502                return -1;
1503
1504        if ((off0[0] & 7) == 0) {
1505                val = word[0];
1506        } else {
1507                val = ((word[0] >> (off0[0] * 8)) & (~(~0ULL << (sz[0] * 8)))) |
1508                        ((word[1] & (~(~0ULL << (sz[1] * 8)))) << (sz[0] * 8));
1509        }
1510
1511        switch (size) {
1512        case 1:
1513                *(uint8_t  *)data = val;
1514                break;
1515        case 2:
1516                *(uint16_t *)data = val;
1517                break;
1518        case 4:
1519                *(uint32_t *)data = val;
1520                break;
1521        case 8:
1522                *(uint64_t *)data = val;
1523                break;
1524        }
1525        return 0;
1526}
1527
1528
1529static struct qla82xx_uri_table_desc *
1530qla82xx_get_table_desc(const u8 *unirom, int section)
1531{
1532        uint32_t i;
1533        struct qla82xx_uri_table_desc *directory =
1534                (struct qla82xx_uri_table_desc *)&unirom[0];
1535        __le32 offset;
1536        __le32 tab_type;
1537        __le32 entries = cpu_to_le32(directory->num_entries);
1538
1539        for (i = 0; i < entries; i++) {
1540                offset = cpu_to_le32(directory->findex) +
1541                    (i * cpu_to_le32(directory->entry_size));
1542                tab_type = cpu_to_le32(*((u32 *)&unirom[offset] + 8));
1543
1544                if (tab_type == section)
1545                        return (struct qla82xx_uri_table_desc *)&unirom[offset];
1546        }
1547
1548        return NULL;
1549}
1550
1551static struct qla82xx_uri_data_desc *
1552qla82xx_get_data_desc(struct qla_hw_data *ha,
1553        u32 section, u32 idx_offset)
1554{
1555        const u8 *unirom = ha->hablob->fw->data;
1556        int idx = cpu_to_le32(*((int *)&unirom[ha->file_prd_off] + idx_offset));
1557        struct qla82xx_uri_table_desc *tab_desc = NULL;
1558        __le32 offset;
1559
1560        tab_desc = qla82xx_get_table_desc(unirom, section);
1561        if (!tab_desc)
1562                return NULL;
1563
1564        offset = cpu_to_le32(tab_desc->findex) +
1565            (cpu_to_le32(tab_desc->entry_size) * idx);
1566
1567        return (struct qla82xx_uri_data_desc *)&unirom[offset];
1568}
1569
1570static u8 *
1571qla82xx_get_bootld_offset(struct qla_hw_data *ha)
1572{
1573        u32 offset = BOOTLD_START;
1574        struct qla82xx_uri_data_desc *uri_desc = NULL;
1575
1576        if (ha->fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
1577                uri_desc = qla82xx_get_data_desc(ha,
1578                    QLA82XX_URI_DIR_SECT_BOOTLD, QLA82XX_URI_BOOTLD_IDX_OFF);
1579                if (uri_desc)
1580                        offset = cpu_to_le32(uri_desc->findex);
1581        }
1582
1583        return (u8 *)&ha->hablob->fw->data[offset];
1584}
1585
1586static __le32
1587qla82xx_get_fw_size(struct qla_hw_data *ha)
1588{
1589        struct qla82xx_uri_data_desc *uri_desc = NULL;
1590
1591        if (ha->fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
1592                uri_desc =  qla82xx_get_data_desc(ha, QLA82XX_URI_DIR_SECT_FW,
1593                    QLA82XX_URI_FIRMWARE_IDX_OFF);
1594                if (uri_desc)
1595                        return cpu_to_le32(uri_desc->size);
1596        }
1597
1598        return cpu_to_le32(*(u32 *)&ha->hablob->fw->data[FW_SIZE_OFFSET]);
1599}
1600
1601static u8 *
1602qla82xx_get_fw_offs(struct qla_hw_data *ha)
1603{
1604        u32 offset = IMAGE_START;
1605        struct qla82xx_uri_data_desc *uri_desc = NULL;
1606
1607        if (ha->fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
1608                uri_desc = qla82xx_get_data_desc(ha, QLA82XX_URI_DIR_SECT_FW,
1609                        QLA82XX_URI_FIRMWARE_IDX_OFF);
1610                if (uri_desc)
1611                        offset = cpu_to_le32(uri_desc->findex);
1612        }
1613
1614        return (u8 *)&ha->hablob->fw->data[offset];
1615}
1616
1617/* PCI related functions */
1618char *
1619qla82xx_pci_info_str(struct scsi_qla_host *vha, char *str)
1620{
1621        int pcie_reg;
1622        struct qla_hw_data *ha = vha->hw;
1623        char lwstr[6];
1624        uint16_t lnk;
1625
1626        pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
1627        pci_read_config_word(ha->pdev, pcie_reg + PCI_EXP_LNKSTA, &lnk);
1628        ha->link_width = (lnk >> 4) & 0x3f;
1629
1630        strcpy(str, "PCIe (");
1631        strcat(str, "2.5Gb/s ");
1632        snprintf(lwstr, sizeof(lwstr), "x%d)", ha->link_width);
1633        strcat(str, lwstr);
1634        return str;
1635}
1636
1637int qla82xx_pci_region_offset(struct pci_dev *pdev, int region)
1638{
1639        unsigned long val = 0;
1640        u32 control;
1641
1642        switch (region) {
1643        case 0:
1644                val = 0;
1645                break;
1646        case 1:
1647                pci_read_config_dword(pdev, QLA82XX_PCI_REG_MSIX_TBL, &control);
1648                val = control + QLA82XX_MSIX_TBL_SPACE;
1649                break;
1650        }
1651        return val;
1652}
1653
1654
1655int
1656qla82xx_iospace_config(struct qla_hw_data *ha)
1657{
1658        uint32_t len = 0;
1659
1660        if (pci_request_regions(ha->pdev, QLA2XXX_DRIVER_NAME)) {
1661                ql_log_pci(ql_log_fatal, ha->pdev, 0x000c,
1662                    "Failed to reserver selected regions.\n");
1663                goto iospace_error_exit;
1664        }
1665
1666        /* Use MMIO operations for all accesses. */
1667        if (!(pci_resource_flags(ha->pdev, 0) & IORESOURCE_MEM)) {
1668                ql_log_pci(ql_log_fatal, ha->pdev, 0x000d,
1669                    "Region #0 not an MMIO resource, aborting.\n");
1670                goto iospace_error_exit;
1671        }
1672
1673        len = pci_resource_len(ha->pdev, 0);
1674        ha->nx_pcibase =
1675            (unsigned long)ioremap(pci_resource_start(ha->pdev, 0), len);
1676        if (!ha->nx_pcibase) {
1677                ql_log_pci(ql_log_fatal, ha->pdev, 0x000e,
1678                    "Cannot remap pcibase MMIO, aborting.\n");
1679                pci_release_regions(ha->pdev);
1680                goto iospace_error_exit;
1681        }
1682
1683        /* Mapping of IO base pointer */
1684        ha->iobase = (device_reg_t __iomem *)((uint8_t *)ha->nx_pcibase +
1685            0xbc000 + (ha->pdev->devfn << 11));
1686
1687        if (!ql2xdbwr) {
1688                ha->nxdb_wr_ptr =
1689                    (unsigned long)ioremap((pci_resource_start(ha->pdev, 4) +
1690                    (ha->pdev->devfn << 12)), 4);
1691                if (!ha->nxdb_wr_ptr) {
1692                        ql_log_pci(ql_log_fatal, ha->pdev, 0x000f,
1693                            "Cannot remap MMIO, aborting.\n");
1694                        pci_release_regions(ha->pdev);
1695                        goto iospace_error_exit;
1696                }
1697
1698                /* Mapping of IO base pointer,
1699                 * door bell read and write pointer
1700                 */
1701                ha->nxdb_rd_ptr = (uint8_t *) ha->nx_pcibase + (512 * 1024) +
1702                    (ha->pdev->devfn * 8);
1703        } else {
1704                ha->nxdb_wr_ptr = (ha->pdev->devfn == 6 ?
1705                        QLA82XX_CAMRAM_DB1 :
1706                        QLA82XX_CAMRAM_DB2);
1707        }
1708
1709        ha->max_req_queues = ha->max_rsp_queues = 1;
1710        ha->msix_count = ha->max_rsp_queues + 1;
1711        ql_dbg_pci(ql_dbg_multiq, ha->pdev, 0xc006,
1712            "nx_pci_base=%p iobase=%p "
1713            "max_req_queues=%d msix_count=%d.\n",
1714            ha->nx_pcibase, ha->iobase,
1715            ha->max_req_queues, ha->msix_count);
1716        ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0010,
1717            "nx_pci_base=%p iobase=%p "
1718            "max_req_queues=%d msix_count=%d.\n",
1719            ha->nx_pcibase, ha->iobase,
1720            ha->max_req_queues, ha->msix_count);
1721        return 0;
1722
1723iospace_error_exit:
1724        return -ENOMEM;
1725}
1726
1727/* GS related functions */
1728
1729/* Initialization related functions */
1730
1731/**
1732 * qla82xx_pci_config() - Setup ISP82xx PCI configuration registers.
1733 * @ha: HA context
1734 *
1735 * Returns 0 on success.
1736*/
1737int
1738qla82xx_pci_config(scsi_qla_host_t *vha)
1739{
1740        struct qla_hw_data *ha = vha->hw;
1741        int ret;
1742
1743        pci_set_master(ha->pdev);
1744        ret = pci_set_mwi(ha->pdev);
1745        ha->chip_revision = ha->pdev->revision;
1746        ql_dbg(ql_dbg_init, vha, 0x0043,
1747            "Chip revision:%ld.\n",
1748            ha->chip_revision);
1749        return 0;
1750}
1751
1752/**
1753 * qla82xx_reset_chip() - Setup ISP82xx PCI configuration registers.
1754 * @ha: HA context
1755 *
1756 * Returns 0 on success.
1757 */
1758void
1759qla82xx_reset_chip(scsi_qla_host_t *vha)
1760{
1761        struct qla_hw_data *ha = vha->hw;
1762        ha->isp_ops->disable_intrs(ha);
1763}
1764
1765void qla82xx_config_rings(struct scsi_qla_host *vha)
1766{
1767        struct qla_hw_data *ha = vha->hw;
1768        struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
1769        struct init_cb_81xx *icb;
1770        struct req_que *req = ha->req_q_map[0];
1771        struct rsp_que *rsp = ha->rsp_q_map[0];
1772
1773        /* Setup ring parameters in initialization control block. */
1774        icb = (struct init_cb_81xx *)ha->init_cb;
1775        icb->request_q_outpointer = __constant_cpu_to_le16(0);
1776        icb->response_q_inpointer = __constant_cpu_to_le16(0);
1777        icb->request_q_length = cpu_to_le16(req->length);
1778        icb->response_q_length = cpu_to_le16(rsp->length);
1779        icb->request_q_address[0] = cpu_to_le32(LSD(req->dma));
1780        icb->request_q_address[1] = cpu_to_le32(MSD(req->dma));
1781        icb->response_q_address[0] = cpu_to_le32(LSD(rsp->dma));
1782        icb->response_q_address[1] = cpu_to_le32(MSD(rsp->dma));
1783
1784        WRT_REG_DWORD((unsigned long  __iomem *)&reg->req_q_out[0], 0);
1785        WRT_REG_DWORD((unsigned long  __iomem *)&reg->rsp_q_in[0], 0);
1786        WRT_REG_DWORD((unsigned long  __iomem *)&reg->rsp_q_out[0], 0);
1787}
1788
1789void qla82xx_reset_adapter(struct scsi_qla_host *vha)
1790{
1791        struct qla_hw_data *ha = vha->hw;
1792        vha->flags.online = 0;
1793        qla2x00_try_to_stop_firmware(vha);
1794        ha->isp_ops->disable_intrs(ha);
1795}
1796
1797static int
1798qla82xx_fw_load_from_blob(struct qla_hw_data *ha)
1799{
1800        u64 *ptr64;
1801        u32 i, flashaddr, size;
1802        __le64 data;
1803
1804        size = (IMAGE_START - BOOTLD_START) / 8;
1805
1806        ptr64 = (u64 *)qla82xx_get_bootld_offset(ha);
1807        flashaddr = BOOTLD_START;
1808
1809        for (i = 0; i < size; i++) {
1810                data = cpu_to_le64(ptr64[i]);
1811                if (qla82xx_pci_mem_write_2M(ha, flashaddr, &data, 8))
1812                        return -EIO;
1813                flashaddr += 8;
1814        }
1815
1816        flashaddr = FLASH_ADDR_START;
1817        size = (__force u32)qla82xx_get_fw_size(ha) / 8;
1818        ptr64 = (u64 *)qla82xx_get_fw_offs(ha);
1819
1820        for (i = 0; i < size; i++) {
1821                data = cpu_to_le64(ptr64[i]);
1822
1823                if (qla82xx_pci_mem_write_2M(ha, flashaddr, &data, 8))
1824                        return -EIO;
1825                flashaddr += 8;
1826        }
1827        udelay(100);
1828
1829        /* Write a magic value to CAMRAM register
1830         * at a specified offset to indicate
1831         * that all data is written and
1832         * ready for firmware to initialize.
1833         */
1834        qla82xx_wr_32(ha, QLA82XX_CAM_RAM(0x1fc), QLA82XX_BDINFO_MAGIC);
1835
1836        read_lock(&ha->hw_lock);
1837        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x18, 0x1020);
1838        qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0x80001e);
1839        read_unlock(&ha->hw_lock);
1840        return 0;
1841}
1842
1843static int
1844qla82xx_set_product_offset(struct qla_hw_data *ha)
1845{
1846        struct qla82xx_uri_table_desc *ptab_desc = NULL;
1847        const uint8_t *unirom = ha->hablob->fw->data;
1848        uint32_t i;
1849        __le32 entries;
1850        __le32 flags, file_chiprev, offset;
1851        uint8_t chiprev = ha->chip_revision;
1852        /* Hardcoding mn_present flag for P3P */
1853        int mn_present = 0;
1854        uint32_t flagbit;
1855
1856        ptab_desc = qla82xx_get_table_desc(unirom,
1857                 QLA82XX_URI_DIR_SECT_PRODUCT_TBL);
1858       if (!ptab_desc)
1859                return -1;
1860
1861        entries = cpu_to_le32(ptab_desc->num_entries);
1862
1863        for (i = 0; i < entries; i++) {
1864                offset = cpu_to_le32(ptab_desc->findex) +
1865                        (i * cpu_to_le32(ptab_desc->entry_size));
1866                flags = cpu_to_le32(*((int *)&unirom[offset] +
1867                        QLA82XX_URI_FLAGS_OFF));
1868                file_chiprev = cpu_to_le32(*((int *)&unirom[offset] +
1869                        QLA82XX_URI_CHIP_REV_OFF));
1870
1871                flagbit = mn_present ? 1 : 2;
1872
1873                if ((chiprev == file_chiprev) && ((1ULL << flagbit) & flags)) {
1874                        ha->file_prd_off = offset;
1875                        return 0;
1876                }
1877        }
1878        return -1;
1879}
1880
1881int
1882qla82xx_validate_firmware_blob(scsi_qla_host_t *vha, uint8_t fw_type)
1883{
1884        __le32 val;
1885        uint32_t min_size;
1886        struct qla_hw_data *ha = vha->hw;
1887        const struct firmware *fw = ha->hablob->fw;
1888
1889        ha->fw_type = fw_type;
1890
1891        if (fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
1892                if (qla82xx_set_product_offset(ha))
1893                        return -EINVAL;
1894
1895                min_size = QLA82XX_URI_FW_MIN_SIZE;
1896        } else {
1897                val = cpu_to_le32(*(u32 *)&fw->data[QLA82XX_FW_MAGIC_OFFSET]);
1898                if ((__force u32)val != QLA82XX_BDINFO_MAGIC)
1899                        return -EINVAL;
1900
1901                min_size = QLA82XX_FW_MIN_SIZE;
1902        }
1903
1904        if (fw->size < min_size)
1905                return -EINVAL;
1906        return 0;
1907}
1908
1909static int
1910qla82xx_check_cmdpeg_state(struct qla_hw_data *ha)
1911{
1912        u32 val = 0;
1913        int retries = 60;
1914        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1915
1916        do {
1917                read_lock(&ha->hw_lock);
1918                val = qla82xx_rd_32(ha, CRB_CMDPEG_STATE);
1919                read_unlock(&ha->hw_lock);
1920
1921                switch (val) {
1922                case PHAN_INITIALIZE_COMPLETE:
1923                case PHAN_INITIALIZE_ACK:
1924                        return QLA_SUCCESS;
1925                case PHAN_INITIALIZE_FAILED:
1926                        break;
1927                default:
1928                        break;
1929                }
1930                ql_log(ql_log_info, vha, 0x00a8,
1931                    "CRB_CMDPEG_STATE: 0x%x and retries:0x%x.\n",
1932                    val, retries);
1933
1934                msleep(500);
1935
1936        } while (--retries);
1937
1938        ql_log(ql_log_fatal, vha, 0x00a9,
1939            "Cmd Peg initialization failed: 0x%x.\n", val);
1940
1941        val = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_PEGTUNE_DONE);
1942        read_lock(&ha->hw_lock);
1943        qla82xx_wr_32(ha, CRB_CMDPEG_STATE, PHAN_INITIALIZE_FAILED);
1944        read_unlock(&ha->hw_lock);
1945        return QLA_FUNCTION_FAILED;
1946}
1947
1948static int
1949qla82xx_check_rcvpeg_state(struct qla_hw_data *ha)
1950{
1951        u32 val = 0;
1952        int retries = 60;
1953        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1954
1955        do {
1956                read_lock(&ha->hw_lock);
1957                val = qla82xx_rd_32(ha, CRB_RCVPEG_STATE);
1958                read_unlock(&ha->hw_lock);
1959
1960                switch (val) {
1961                case PHAN_INITIALIZE_COMPLETE:
1962                case PHAN_INITIALIZE_ACK:
1963                        return QLA_SUCCESS;
1964                case PHAN_INITIALIZE_FAILED:
1965                        break;
1966                default:
1967                        break;
1968                }
1969                ql_log(ql_log_info, vha, 0x00ab,
1970                    "CRB_RCVPEG_STATE: 0x%x and retries: 0x%x.\n",
1971                    val, retries);
1972
1973                msleep(500);
1974
1975        } while (--retries);
1976
1977        ql_log(ql_log_fatal, vha, 0x00ac,
1978            "Rcv Peg initializatin failed: 0x%x.\n", val);
1979        read_lock(&ha->hw_lock);
1980        qla82xx_wr_32(ha, CRB_RCVPEG_STATE, PHAN_INITIALIZE_FAILED);
1981        read_unlock(&ha->hw_lock);
1982        return QLA_FUNCTION_FAILED;
1983}
1984
1985/* ISR related functions */
1986uint32_t qla82xx_isr_int_target_mask_enable[8] = {
1987        ISR_INT_TARGET_MASK, ISR_INT_TARGET_MASK_F1,
1988        ISR_INT_TARGET_MASK_F2, ISR_INT_TARGET_MASK_F3,
1989        ISR_INT_TARGET_MASK_F4, ISR_INT_TARGET_MASK_F5,
1990        ISR_INT_TARGET_MASK_F7, ISR_INT_TARGET_MASK_F7
1991};
1992
1993uint32_t qla82xx_isr_int_target_status[8] = {
1994        ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
1995        ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
1996        ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
1997        ISR_INT_TARGET_STATUS_F7, ISR_INT_TARGET_STATUS_F7
1998};
1999
2000static struct qla82xx_legacy_intr_set legacy_intr[] = \
2001        QLA82XX_LEGACY_INTR_CONFIG;
2002
2003/*
2004 * qla82xx_mbx_completion() - Process mailbox command completions.
2005 * @ha: SCSI driver HA context
2006 * @mb0: Mailbox0 register
2007 */
2008static void
2009qla82xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
2010{
2011        uint16_t        cnt;
2012        uint16_t __iomem *wptr;
2013        struct qla_hw_data *ha = vha->hw;
2014        struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
2015        wptr = (uint16_t __iomem *)&reg->mailbox_out[1];
2016
2017        /* Load return mailbox registers. */
2018        ha->flags.mbox_int = 1;
2019        ha->mailbox_out[0] = mb0;
2020
2021        for (cnt = 1; cnt < ha->mbx_count; cnt++) {
2022                ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
2023                wptr++;
2024        }
2025
2026        if (ha->mcp) {
2027                ql_dbg(ql_dbg_async, vha, 0x5052,
2028                    "Got mailbox completion. cmd=%x.\n", ha->mcp->mb[0]);
2029        } else {
2030                ql_dbg(ql_dbg_async, vha, 0x5053,
2031                    "MBX pointer ERROR.\n");
2032        }
2033}
2034
2035/*
2036 * qla82xx_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
2037 * @irq:
2038 * @dev_id: SCSI driver HA context
2039 * @regs:
2040 *
2041 * Called by system whenever the host adapter generates an interrupt.
2042 *
2043 * Returns handled flag.
2044 */
2045irqreturn_t
2046qla82xx_intr_handler(int irq, void *dev_id)
2047{
2048        scsi_qla_host_t *vha;
2049        struct qla_hw_data *ha;
2050        struct rsp_que *rsp;
2051        struct device_reg_82xx __iomem *reg;
2052        int status = 0, status1 = 0;
2053        unsigned long   flags;
2054        unsigned long   iter;
2055        uint32_t        stat = 0;
2056        uint16_t        mb[4];
2057
2058        rsp = (struct rsp_que *) dev_id;
2059        if (!rsp) {
2060                printk(KERN_INFO
2061                        "%s(): NULL response queue pointer.\n", __func__);
2062                return IRQ_NONE;
2063        }
2064        ha = rsp->hw;
2065
2066        if (!ha->flags.msi_enabled) {
2067                status = qla82xx_rd_32(ha, ISR_INT_VECTOR);
2068                if (!(status & ha->nx_legacy_intr.int_vec_bit))
2069                        return IRQ_NONE;
2070
2071                status1 = qla82xx_rd_32(ha, ISR_INT_STATE_REG);
2072                if (!ISR_IS_LEGACY_INTR_TRIGGERED(status1))
2073                        return IRQ_NONE;
2074        }
2075
2076        /* clear the interrupt */
2077        qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_status_reg, 0xffffffff);
2078
2079        /* read twice to ensure write is flushed */
2080        qla82xx_rd_32(ha, ISR_INT_VECTOR);
2081        qla82xx_rd_32(ha, ISR_INT_VECTOR);
2082
2083        reg = &ha->iobase->isp82;
2084
2085        spin_lock_irqsave(&ha->hardware_lock, flags);
2086        vha = pci_get_drvdata(ha->pdev);
2087        for (iter = 1; iter--; ) {
2088
2089                if (RD_REG_DWORD(&reg->host_int)) {
2090                        stat = RD_REG_DWORD(&reg->host_status);
2091
2092                        switch (stat & 0xff) {
2093                        case 0x1:
2094                        case 0x2:
2095                        case 0x10:
2096                        case 0x11:
2097                                qla82xx_mbx_completion(vha, MSW(stat));
2098                                status |= MBX_INTERRUPT;
2099                                break;
2100                        case 0x12:
2101                                mb[0] = MSW(stat);
2102                                mb[1] = RD_REG_WORD(&reg->mailbox_out[1]);
2103                                mb[2] = RD_REG_WORD(&reg->mailbox_out[2]);
2104                                mb[3] = RD_REG_WORD(&reg->mailbox_out[3]);
2105                                qla2x00_async_event(vha, rsp, mb);
2106                                break;
2107                        case 0x13:
2108                                qla24xx_process_response_queue(vha, rsp);
2109                                break;
2110                        default:
2111                                ql_dbg(ql_dbg_async, vha, 0x5054,
2112                                    "Unrecognized interrupt type (%d).\n",
2113                                    stat & 0xff);
2114                                break;
2115                        }
2116                }
2117                WRT_REG_DWORD(&reg->host_int, 0);
2118        }
2119        spin_unlock_irqrestore(&ha->hardware_lock, flags);
2120        if (!ha->flags.msi_enabled)
2121                qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0xfbff);
2122
2123#ifdef QL_DEBUG_LEVEL_17
2124        if (!irq && ha->flags.eeh_busy)
2125                ql_log(ql_log_warn, vha, 0x503d,
2126                    "isr:status %x, cmd_flags %lx, mbox_int %x, stat %x.\n",
2127                    status, ha->mbx_cmd_flags, ha->flags.mbox_int, stat);
2128#endif
2129
2130        if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
2131            (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
2132                set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
2133                complete(&ha->mbx_intr_comp);
2134        }
2135        return IRQ_HANDLED;
2136}
2137
2138irqreturn_t
2139qla82xx_msix_default(int irq, void *dev_id)
2140{
2141        scsi_qla_host_t *vha;
2142        struct qla_hw_data *ha;
2143        struct rsp_que *rsp;
2144        struct device_reg_82xx __iomem *reg;
2145        int status = 0;
2146        unsigned long flags;
2147        uint32_t stat = 0;
2148        uint16_t mb[4];
2149
2150        rsp = (struct rsp_que *) dev_id;
2151        if (!rsp) {
2152                printk(KERN_INFO
2153                        "%s(): NULL response queue pointer.\n", __func__);
2154                return IRQ_NONE;
2155        }
2156        ha = rsp->hw;
2157
2158        reg = &ha->iobase->isp82;
2159
2160        spin_lock_irqsave(&ha->hardware_lock, flags);
2161        vha = pci_get_drvdata(ha->pdev);
2162        do {
2163                if (RD_REG_DWORD(&reg->host_int)) {
2164                        stat = RD_REG_DWORD(&reg->host_status);
2165
2166                        switch (stat & 0xff) {
2167                        case 0x1:
2168                        case 0x2:
2169                        case 0x10:
2170                        case 0x11:
2171                                qla82xx_mbx_completion(vha, MSW(stat));
2172                                status |= MBX_INTERRUPT;
2173                                break;
2174                        case 0x12:
2175                                mb[0] = MSW(stat);
2176                                mb[1] = RD_REG_WORD(&reg->mailbox_out[1]);
2177                                mb[2] = RD_REG_WORD(&reg->mailbox_out[2]);
2178                                mb[3] = RD_REG_WORD(&reg->mailbox_out[3]);
2179                                qla2x00_async_event(vha, rsp, mb);
2180                                break;
2181                        case 0x13:
2182                                qla24xx_process_response_queue(vha, rsp);
2183                                break;
2184                        default:
2185                                ql_dbg(ql_dbg_async, vha, 0x5041,
2186                                    "Unrecognized interrupt type (%d).\n",
2187                                    stat & 0xff);
2188                                break;
2189                        }
2190                }
2191                WRT_REG_DWORD(&reg->host_int, 0);
2192        } while (0);
2193
2194        spin_unlock_irqrestore(&ha->hardware_lock, flags);
2195
2196#ifdef QL_DEBUG_LEVEL_17
2197        if (!irq && ha->flags.eeh_busy)
2198                ql_log(ql_log_warn, vha, 0x5044,
2199                    "isr:status %x, cmd_flags %lx, mbox_int %x, stat %x.\n",
2200                    status, ha->mbx_cmd_flags, ha->flags.mbox_int, stat);
2201#endif
2202
2203        if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
2204                (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
2205                        set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
2206                        complete(&ha->mbx_intr_comp);
2207        }
2208        return IRQ_HANDLED;
2209}
2210
2211irqreturn_t
2212qla82xx_msix_rsp_q(int irq, void *dev_id)
2213{
2214        scsi_qla_host_t *vha;
2215        struct qla_hw_data *ha;
2216        struct rsp_que *rsp;
2217        struct device_reg_82xx __iomem *reg;
2218        unsigned long flags;
2219
2220        rsp = (struct rsp_que *) dev_id;
2221        if (!rsp) {
2222                printk(KERN_INFO
2223                        "%s(): NULL response queue pointer.\n", __func__);
2224                return IRQ_NONE;
2225        }
2226
2227        ha = rsp->hw;
2228        reg = &ha->iobase->isp82;
2229        spin_lock_irqsave(&ha->hardware_lock, flags);
2230        vha = pci_get_drvdata(ha->pdev);
2231        qla24xx_process_response_queue(vha, rsp);
2232        WRT_REG_DWORD(&reg->host_int, 0);
2233        spin_unlock_irqrestore(&ha->hardware_lock, flags);
2234        return IRQ_HANDLED;
2235}
2236
2237void
2238qla82xx_poll(int irq, void *dev_id)
2239{
2240        scsi_qla_host_t *vha;
2241        struct qla_hw_data *ha;
2242        struct rsp_que *rsp;
2243        struct device_reg_82xx __iomem *reg;
2244        int status = 0;
2245        uint32_t stat;
2246        uint16_t mb[4];
2247        unsigned long flags;
2248
2249        rsp = (struct rsp_que *) dev_id;
2250        if (!rsp) {
2251                printk(KERN_INFO
2252                        "%s(): NULL response queue pointer.\n", __func__);
2253                return;
2254        }
2255        ha = rsp->hw;
2256
2257        reg = &ha->iobase->isp82;
2258        spin_lock_irqsave(&ha->hardware_lock, flags);
2259        vha = pci_get_drvdata(ha->pdev);
2260
2261        if (RD_REG_DWORD(&reg->host_int)) {
2262                stat = RD_REG_DWORD(&reg->host_status);
2263                switch (stat & 0xff) {
2264                case 0x1:
2265                case 0x2:
2266                case 0x10:
2267                case 0x11:
2268                        qla82xx_mbx_completion(vha, MSW(stat));
2269                        status |= MBX_INTERRUPT;
2270                        break;
2271                case 0x12:
2272                        mb[0] = MSW(stat);
2273                        mb[1] = RD_REG_WORD(&reg->mailbox_out[1]);
2274                        mb[2] = RD_REG_WORD(&reg->mailbox_out[2]);
2275                        mb[3] = RD_REG_WORD(&reg->mailbox_out[3]);
2276                        qla2x00_async_event(vha, rsp, mb);
2277                        break;
2278                case 0x13:
2279                        qla24xx_process_response_queue(vha, rsp);
2280                        break;
2281                default:
2282                        ql_dbg(ql_dbg_p3p, vha, 0xb013,
2283                            "Unrecognized interrupt type (%d).\n",
2284                            stat * 0xff);
2285                        break;
2286                }
2287        }
2288        WRT_REG_DWORD(&reg->host_int, 0);
2289        spin_unlock_irqrestore(&ha->hardware_lock, flags);
2290}
2291
2292void
2293qla82xx_enable_intrs(struct qla_hw_data *ha)
2294{
2295        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2296        qla82xx_mbx_intr_enable(vha);
2297        spin_lock_irq(&ha->hardware_lock);
2298        qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0xfbff);
2299        spin_unlock_irq(&ha->hardware_lock);
2300        ha->interrupts_on = 1;
2301}
2302
2303void
2304qla82xx_disable_intrs(struct qla_hw_data *ha)
2305{
2306        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2307        qla82xx_mbx_intr_disable(vha);
2308        spin_lock_irq(&ha->hardware_lock);
2309        qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0x0400);
2310        spin_unlock_irq(&ha->hardware_lock);
2311        ha->interrupts_on = 0;
2312}
2313
2314void qla82xx_init_flags(struct qla_hw_data *ha)
2315{
2316        struct qla82xx_legacy_intr_set *nx_legacy_intr;
2317
2318        /* ISP 8021 initializations */
2319        rwlock_init(&ha->hw_lock);
2320        ha->qdr_sn_window = -1;
2321        ha->ddr_mn_window = -1;
2322        ha->curr_window = 255;
2323        ha->portnum = PCI_FUNC(ha->pdev->devfn);
2324        nx_legacy_intr = &legacy_intr[ha->portnum];
2325        ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit;
2326        ha->nx_legacy_intr.tgt_status_reg = nx_legacy_intr->tgt_status_reg;
2327        ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg;
2328        ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg;
2329}
2330
2331inline void
2332qla82xx_set_drv_active(scsi_qla_host_t *vha)
2333{
2334        uint32_t drv_active;
2335        struct qla_hw_data *ha = vha->hw;
2336
2337        drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2338
2339        /* If reset value is all FF's, initialize DRV_ACTIVE */
2340        if (drv_active == 0xffffffff) {
2341                qla82xx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE,
2342                        QLA82XX_DRV_NOT_ACTIVE);
2343                drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2344        }
2345        drv_active |= (QLA82XX_DRV_ACTIVE << (ha->portnum * 4));
2346        qla82xx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE, drv_active);
2347}
2348
2349inline void
2350qla82xx_clear_drv_active(struct qla_hw_data *ha)
2351{
2352        uint32_t drv_active;
2353
2354        drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2355        drv_active &= ~(QLA82XX_DRV_ACTIVE << (ha->portnum * 4));
2356        qla82xx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE, drv_active);
2357}
2358
2359static inline int
2360qla82xx_need_reset(struct qla_hw_data *ha)
2361{
2362        uint32_t drv_state;
2363        int rval;
2364
2365        if (ha->flags.isp82xx_reset_owner)
2366                return 1;
2367        else {
2368                drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2369                rval = drv_state & (QLA82XX_DRVST_RST_RDY << (ha->portnum * 4));
2370                return rval;
2371        }
2372}
2373
2374static inline void
2375qla82xx_set_rst_ready(struct qla_hw_data *ha)
2376{
2377        uint32_t drv_state;
2378        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2379
2380        drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2381
2382        /* If reset value is all FF's, initialize DRV_STATE */
2383        if (drv_state == 0xffffffff) {
2384                qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, QLA82XX_DRVST_NOT_RDY);
2385                drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2386        }
2387        drv_state |= (QLA82XX_DRVST_RST_RDY << (ha->portnum * 4));
2388        ql_dbg(ql_dbg_init, vha, 0x00bb,
2389            "drv_state = 0x%08x.\n", drv_state);
2390        qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, drv_state);
2391}
2392
2393static inline void
2394qla82xx_clear_rst_ready(struct qla_hw_data *ha)
2395{
2396        uint32_t drv_state;
2397
2398        drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2399        drv_state &= ~(QLA82XX_DRVST_RST_RDY << (ha->portnum * 4));
2400        qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, drv_state);
2401}
2402
2403static inline void
2404qla82xx_set_qsnt_ready(struct qla_hw_data *ha)
2405{
2406        uint32_t qsnt_state;
2407
2408        qsnt_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2409        qsnt_state |= (QLA82XX_DRVST_QSNT_RDY << (ha->portnum * 4));
2410        qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, qsnt_state);
2411}
2412
2413void
2414qla82xx_clear_qsnt_ready(scsi_qla_host_t *vha)
2415{
2416        struct qla_hw_data *ha = vha->hw;
2417        uint32_t qsnt_state;
2418
2419        qsnt_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2420        qsnt_state &= ~(QLA82XX_DRVST_QSNT_RDY << (ha->portnum * 4));
2421        qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, qsnt_state);
2422}
2423
2424static int
2425qla82xx_load_fw(scsi_qla_host_t *vha)
2426{
2427        int rst;
2428        struct fw_blob *blob;
2429        struct qla_hw_data *ha = vha->hw;
2430
2431        if (qla82xx_pinit_from_rom(vha) != QLA_SUCCESS) {
2432                ql_log(ql_log_fatal, vha, 0x009f,
2433                    "Error during CRB initialization.\n");
2434                return QLA_FUNCTION_FAILED;
2435        }
2436        udelay(500);
2437
2438        /* Bring QM and CAMRAM out of reset */
2439        rst = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET);
2440        rst &= ~((1 << 28) | (1 << 24));
2441        qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, rst);
2442
2443        /*
2444         * FW Load priority:
2445         * 1) Operational firmware residing in flash.
2446         * 2) Firmware via request-firmware interface (.bin file).
2447         */
2448        if (ql2xfwloadbin == 2)
2449                goto try_blob_fw;
2450
2451        ql_log(ql_log_info, vha, 0x00a0,
2452            "Attempting to load firmware from flash.\n");
2453
2454        if (qla82xx_fw_load_from_flash(ha) == QLA_SUCCESS) {
2455                ql_log(ql_log_info, vha, 0x00a1,
2456                    "Firmware loaded successully from flash.\n");
2457                return QLA_SUCCESS;
2458        } else {
2459                ql_log(ql_log_warn, vha, 0x0108,
2460                    "Firmware load from flash failed.\n");
2461        }
2462
2463try_blob_fw:
2464        ql_log(ql_log_info, vha, 0x00a2,
2465            "Attempting to load firmware from blob.\n");
2466
2467        /* Load firmware blob. */
2468        blob = ha->hablob = qla2x00_request_firmware(vha);
2469        if (!blob) {
2470                ql_log(ql_log_fatal, vha, 0x00a3,
2471                    "Firmware image not preset.\n");
2472                goto fw_load_failed;
2473        }
2474
2475        /* Validating firmware blob */
2476        if (qla82xx_validate_firmware_blob(vha,
2477                QLA82XX_FLASH_ROMIMAGE)) {
2478                /* Fallback to URI format */
2479                if (qla82xx_validate_firmware_blob(vha,
2480                        QLA82XX_UNIFIED_ROMIMAGE)) {
2481                        ql_log(ql_log_fatal, vha, 0x00a4,
2482                            "No valid firmware image found.\n");
2483                        return QLA_FUNCTION_FAILED;
2484                }
2485        }
2486
2487        if (qla82xx_fw_load_from_blob(ha) == QLA_SUCCESS) {
2488                ql_log(ql_log_info, vha, 0x00a5,
2489                    "Firmware loaded successfully from binary blob.\n");
2490                return QLA_SUCCESS;
2491        } else {
2492                ql_log(ql_log_fatal, vha, 0x00a6,
2493                    "Firmware load failed for binary blob.\n");
2494                blob->fw = NULL;
2495                blob = NULL;
2496                goto fw_load_failed;
2497        }
2498        return QLA_SUCCESS;
2499
2500fw_load_failed:
2501        return QLA_FUNCTION_FAILED;
2502}
2503
2504int
2505qla82xx_start_firmware(scsi_qla_host_t *vha)
2506{
2507        int           pcie_cap;
2508        uint16_t      lnk;
2509        struct qla_hw_data *ha = vha->hw;
2510
2511        /* scrub dma mask expansion register */
2512        qla82xx_wr_32(ha, CRB_DMA_SHIFT, QLA82XX_DMA_SHIFT_VALUE);
2513
2514        /* Put both the PEG CMD and RCV PEG to default state
2515         * of 0 before resetting the hardware
2516         */
2517        qla82xx_wr_32(ha, CRB_CMDPEG_STATE, 0);
2518        qla82xx_wr_32(ha, CRB_RCVPEG_STATE, 0);
2519
2520        /* Overwrite stale initialization register values */
2521        qla82xx_wr_32(ha, QLA82XX_PEG_HALT_STATUS1, 0);
2522        qla82xx_wr_32(ha, QLA82XX_PEG_HALT_STATUS2, 0);
2523
2524        if (qla82xx_load_fw(vha) != QLA_SUCCESS) {
2525                ql_log(ql_log_fatal, vha, 0x00a7,
2526                    "Error trying to start fw.\n");
2527                return QLA_FUNCTION_FAILED;
2528        }
2529
2530        /* Handshake with the card before we register the devices. */
2531        if (qla82xx_check_cmdpeg_state(ha) != QLA_SUCCESS) {
2532                ql_log(ql_log_fatal, vha, 0x00aa,
2533                    "Error during card handshake.\n");
2534                return QLA_FUNCTION_FAILED;
2535        }
2536
2537        /* Negotiated Link width */
2538        pcie_cap = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
2539        pci_read_config_word(ha->pdev, pcie_cap + PCI_EXP_LNKSTA, &lnk);
2540        ha->link_width = (lnk >> 4) & 0x3f;
2541
2542        /* Synchronize with Receive peg */
2543        return qla82xx_check_rcvpeg_state(ha);
2544}
2545
2546static inline int
2547qla2xx_build_scsi_type_6_iocbs(srb_t *sp, struct cmd_type_6 *cmd_pkt,
2548        uint16_t tot_dsds)
2549{
2550        uint32_t *cur_dsd = NULL;
2551        scsi_qla_host_t *vha;
2552        struct qla_hw_data *ha;
2553        struct scsi_cmnd *cmd;
2554        struct  scatterlist *cur_seg;
2555        uint32_t *dsd_seg;
2556        void *next_dsd;
2557        uint8_t avail_dsds;
2558        uint8_t first_iocb = 1;
2559        uint32_t dsd_list_len;
2560        struct dsd_dma *dsd_ptr;
2561        struct ct6_dsd *ctx;
2562
2563        cmd = sp->cmd;
2564
2565        /* Update entry type to indicate Command Type 3 IOCB */
2566        *((uint32_t *)(&cmd_pkt->entry_type)) =
2567                __constant_cpu_to_le32(COMMAND_TYPE_6);
2568
2569        /* No data transfer */
2570        if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
2571                cmd_pkt->byte_count = __constant_cpu_to_le32(0);
2572                return 0;
2573        }
2574
2575        vha = sp->fcport->vha;
2576        ha = vha->hw;
2577
2578        /* Set transfer direction */
2579        if (cmd->sc_data_direction == DMA_TO_DEVICE) {
2580                cmd_pkt->control_flags =
2581                    __constant_cpu_to_le16(CF_WRITE_DATA);
2582                ha->qla_stats.output_bytes += scsi_bufflen(cmd);
2583        } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
2584                cmd_pkt->control_flags =
2585                    __constant_cpu_to_le16(CF_READ_DATA);
2586                ha->qla_stats.input_bytes += scsi_bufflen(cmd);
2587        }
2588
2589        cur_seg = scsi_sglist(cmd);
2590        ctx = sp->ctx;
2591
2592        while (tot_dsds) {
2593                avail_dsds = (tot_dsds > QLA_DSDS_PER_IOCB) ?
2594                    QLA_DSDS_PER_IOCB : tot_dsds;
2595                tot_dsds -= avail_dsds;
2596                dsd_list_len = (avail_dsds + 1) * QLA_DSD_SIZE;
2597
2598                dsd_ptr = list_first_entry(&ha->gbl_dsd_list,
2599                    struct dsd_dma, list);
2600                next_dsd = dsd_ptr->dsd_addr;
2601                list_del(&dsd_ptr->list);
2602                ha->gbl_dsd_avail--;
2603                list_add_tail(&dsd_ptr->list, &ctx->dsd_list);
2604                ctx->dsd_use_cnt++;
2605                ha->gbl_dsd_inuse++;
2606
2607                if (first_iocb) {
2608                        first_iocb = 0;
2609                        dsd_seg = (uint32_t *)&cmd_pkt->fcp_data_dseg_address;
2610                        *dsd_seg++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma));
2611                        *dsd_seg++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma));
2612                        cmd_pkt->fcp_data_dseg_len = cpu_to_le32(dsd_list_len);
2613                } else {
2614                        *cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma));
2615                        *cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma));
2616                        *cur_dsd++ = cpu_to_le32(dsd_list_len);
2617                }
2618                cur_dsd = (uint32_t *)next_dsd;
2619                while (avail_dsds) {
2620                        dma_addr_t      sle_dma;
2621
2622                        sle_dma = sg_dma_address(cur_seg);
2623                        *cur_dsd++ = cpu_to_le32(LSD(sle_dma));
2624                        *cur_dsd++ = cpu_to_le32(MSD(sle_dma));
2625                        *cur_dsd++ = cpu_to_le32(sg_dma_len(cur_seg));
2626                        cur_seg = sg_next(cur_seg);
2627                        avail_dsds--;
2628                }
2629        }
2630
2631        /* Null termination */
2632        *cur_dsd++ =  0;
2633        *cur_dsd++ = 0;
2634        *cur_dsd++ = 0;
2635        cmd_pkt->control_flags |= CF_DATA_SEG_DESCR_ENABLE;
2636        return 0;
2637}
2638
2639/*
2640 * qla82xx_calc_dsd_lists() - Determine number of DSD list required
2641 * for Command Type 6.
2642 *
2643 * @dsds: number of data segment decriptors needed
2644 *
2645 * Returns the number of dsd list needed to store @dsds.
2646 */
2647inline uint16_t
2648qla82xx_calc_dsd_lists(uint16_t dsds)
2649{
2650        uint16_t dsd_lists = 0;
2651
2652        dsd_lists = (dsds/QLA_DSDS_PER_IOCB);
2653        if (dsds % QLA_DSDS_PER_IOCB)
2654                dsd_lists++;
2655        return dsd_lists;
2656}
2657
2658/*
2659 * qla82xx_start_scsi() - Send a SCSI command to the ISP
2660 * @sp: command to send to the ISP
2661 *
2662 * Returns non-zero if a failure occurred, else zero.
2663 */
2664int
2665qla82xx_start_scsi(srb_t *sp)
2666{
2667        int             ret, nseg;
2668        unsigned long   flags;
2669        struct scsi_cmnd *cmd;
2670        uint32_t        *clr_ptr;
2671        uint32_t        index;
2672        uint32_t        handle;
2673        uint16_t        cnt;
2674        uint16_t        req_cnt;
2675        uint16_t        tot_dsds;
2676        struct device_reg_82xx __iomem *reg;
2677        uint32_t dbval;
2678        uint32_t *fcp_dl;
2679        uint8_t additional_cdb_len;
2680        struct ct6_dsd *ctx;
2681        struct scsi_qla_host *vha = sp->fcport->vha;
2682        struct qla_hw_data *ha = vha->hw;
2683        struct req_que *req = NULL;
2684        struct rsp_que *rsp = NULL;
2685        char            tag[2];
2686
2687        /* Setup device pointers. */
2688        ret = 0;
2689        reg = &ha->iobase->isp82;
2690        cmd = sp->cmd;
2691        req = vha->req;
2692        rsp = ha->rsp_q_map[0];
2693
2694        /* So we know we haven't pci_map'ed anything yet */
2695        tot_dsds = 0;
2696
2697        dbval = 0x04 | (ha->portnum << 5);
2698
2699        /* Send marker if required */
2700        if (vha->marker_needed != 0) {
2701                if (qla2x00_marker(vha, req,
2702                        rsp, 0, 0, MK_SYNC_ALL) != QLA_SUCCESS) {
2703                        ql_log(ql_log_warn, vha, 0x300c,
2704                            "qla2x00_marker failed for cmd=%p.\n", cmd);
2705                        return QLA_FUNCTION_FAILED;
2706                }
2707                vha->marker_needed = 0;
2708        }
2709
2710        /* Acquire ring specific lock */
2711        spin_lock_irqsave(&ha->hardware_lock, flags);
2712
2713        /* Check for room in outstanding command list. */
2714        handle = req->current_outstanding_cmd;
2715        for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) {
2716                handle++;
2717                if (handle == MAX_OUTSTANDING_COMMANDS)
2718                        handle = 1;
2719                if (!req->outstanding_cmds[handle])
2720                        break;
2721        }
2722        if (index == MAX_OUTSTANDING_COMMANDS)
2723                goto queuing_error;
2724
2725        /* Map the sg table so we have an accurate count of sg entries needed */
2726        if (scsi_sg_count(cmd)) {
2727                nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
2728                    scsi_sg_count(cmd), cmd->sc_data_direction);
2729                if (unlikely(!nseg))
2730                        goto queuing_error;
2731        } else
2732                nseg = 0;
2733
2734        tot_dsds = nseg;
2735
2736        if (tot_dsds > ql2xshiftctondsd) {
2737                struct cmd_type_6 *cmd_pkt;
2738                uint16_t more_dsd_lists = 0;
2739                struct dsd_dma *dsd_ptr;
2740                uint16_t i;
2741
2742                more_dsd_lists = qla82xx_calc_dsd_lists(tot_dsds);
2743                if ((more_dsd_lists + ha->gbl_dsd_inuse) >= NUM_DSD_CHAIN) {
2744                        ql_dbg(ql_dbg_io, vha, 0x300d,
2745                            "Num of DSD list %d is than %d for cmd=%p.\n",
2746                            more_dsd_lists + ha->gbl_dsd_inuse, NUM_DSD_CHAIN,
2747                            cmd);
2748                        goto queuing_error;
2749                }
2750
2751                if (more_dsd_lists <= ha->gbl_dsd_avail)
2752                        goto sufficient_dsds;
2753                else
2754                        more_dsd_lists -= ha->gbl_dsd_avail;
2755
2756                for (i = 0; i < more_dsd_lists; i++) {
2757                        dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC);
2758                        if (!dsd_ptr) {
2759                                ql_log(ql_log_fatal, vha, 0x300e,
2760                                    "Failed to allocate memory for dsd_dma "
2761                                    "for cmd=%p.\n", cmd);
2762                                goto queuing_error;
2763                        }
2764
2765                        dsd_ptr->dsd_addr = dma_pool_alloc(ha->dl_dma_pool,
2766                                GFP_ATOMIC, &dsd_ptr->dsd_list_dma);
2767                        if (!dsd_ptr->dsd_addr) {
2768                                kfree(dsd_ptr);
2769                                ql_log(ql_log_fatal, vha, 0x300f,
2770                                    "Failed to allocate memory for dsd_addr "
2771                                    "for cmd=%p.\n", cmd);
2772                                goto queuing_error;
2773                        }
2774                        list_add_tail(&dsd_ptr->list, &ha->gbl_dsd_list);
2775                        ha->gbl_dsd_avail++;
2776                }
2777
2778sufficient_dsds:
2779                req_cnt = 1;
2780
2781                if (req->cnt < (req_cnt + 2)) {
2782                        cnt = (uint16_t)RD_REG_DWORD_RELAXED(
2783                                &reg->req_q_out[0]);
2784                        if (req->ring_index < cnt)
2785                                req->cnt = cnt - req->ring_index;
2786                        else
2787                                req->cnt = req->length -
2788                                        (req->ring_index - cnt);
2789                }
2790
2791                if (req->cnt < (req_cnt + 2))
2792                        goto queuing_error;
2793
2794                ctx = sp->ctx = mempool_alloc(ha->ctx_mempool, GFP_ATOMIC);
2795                if (!sp->ctx) {
2796                        ql_log(ql_log_fatal, vha, 0x3010,
2797                            "Failed to allocate ctx for cmd=%p.\n", cmd);
2798                        goto queuing_error;
2799                }
2800                memset(ctx, 0, sizeof(struct ct6_dsd));
2801                ctx->fcp_cmnd = dma_pool_alloc(ha->fcp_cmnd_dma_pool,
2802                        GFP_ATOMIC, &ctx->fcp_cmnd_dma);
2803                if (!ctx->fcp_cmnd) {
2804                        ql_log(ql_log_fatal, vha, 0x3011,
2805                            "Failed to allocate fcp_cmnd for cmd=%p.\n", cmd);
2806                        goto queuing_error_fcp_cmnd;
2807                }
2808
2809                /* Initialize the DSD list and dma handle */
2810                INIT_LIST_HEAD(&ctx->dsd_list);
2811                ctx->dsd_use_cnt = 0;
2812
2813                if (cmd->cmd_len > 16) {
2814                        additional_cdb_len = cmd->cmd_len - 16;
2815                        if ((cmd->cmd_len % 4) != 0) {
2816                                /* SCSI command bigger than 16 bytes must be
2817                                 * multiple of 4
2818                                 */
2819                                ql_log(ql_log_warn, vha, 0x3012,
2820                                    "scsi cmd len %d not multiple of 4 "
2821                                    "for cmd=%p.\n", cmd->cmd_len, cmd);
2822                                goto queuing_error_fcp_cmnd;
2823                        }
2824                        ctx->fcp_cmnd_len = 12 + cmd->cmd_len + 4;
2825                } else {
2826                        additional_cdb_len = 0;
2827                        ctx->fcp_cmnd_len = 12 + 16 + 4;
2828                }
2829
2830                cmd_pkt = (struct cmd_type_6 *)req->ring_ptr;
2831                cmd_pkt->handle = MAKE_HANDLE(req->id, handle);
2832
2833                /* Zero out remaining portion of packet. */
2834                /*    tagged queuing modifier -- default is TSK_SIMPLE (0). */
2835                clr_ptr = (uint32_t *)cmd_pkt + 2;
2836                memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
2837                cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
2838
2839                /* Set NPORT-ID and LUN number*/
2840                cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
2841                cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
2842                cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
2843                cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
2844                cmd_pkt->vp_index = sp->fcport->vp_idx;
2845
2846                /* Build IOCB segments */
2847                if (qla2xx_build_scsi_type_6_iocbs(sp, cmd_pkt, tot_dsds))
2848                        goto queuing_error_fcp_cmnd;
2849
2850                int_to_scsilun(sp->cmd->device->lun, &cmd_pkt->lun);
2851                host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun));
2852
2853                /* build FCP_CMND IU */
2854                memset(ctx->fcp_cmnd, 0, sizeof(struct fcp_cmnd));
2855                int_to_scsilun(sp->cmd->device->lun, &ctx->fcp_cmnd->lun);
2856                ctx->fcp_cmnd->additional_cdb_len = additional_cdb_len;
2857
2858                if (cmd->sc_data_direction == DMA_TO_DEVICE)
2859                        ctx->fcp_cmnd->additional_cdb_len |= 1;
2860                else if (cmd->sc_data_direction == DMA_FROM_DEVICE)
2861                        ctx->fcp_cmnd->additional_cdb_len |= 2;
2862
2863                /*
2864                 * Update tagged queuing modifier -- default is TSK_SIMPLE (0).
2865                 */
2866                if (scsi_populate_tag_msg(cmd, tag)) {
2867                        switch (tag[0]) {
2868                        case HEAD_OF_QUEUE_TAG:
2869                                ctx->fcp_cmnd->task_attribute =
2870                                    TSK_HEAD_OF_QUEUE;
2871                                break;
2872                        case ORDERED_QUEUE_TAG:
2873                                ctx->fcp_cmnd->task_attribute =
2874                                    TSK_ORDERED;
2875                                break;
2876                        }
2877                }
2878
2879                memcpy(ctx->fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len);
2880
2881                fcp_dl = (uint32_t *)(ctx->fcp_cmnd->cdb + 16 +
2882                    additional_cdb_len);
2883                *fcp_dl = htonl((uint32_t)scsi_bufflen(cmd));
2884
2885                cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(ctx->fcp_cmnd_len);
2886                cmd_pkt->fcp_cmnd_dseg_address[0] =
2887                    cpu_to_le32(LSD(ctx->fcp_cmnd_dma));
2888                cmd_pkt->fcp_cmnd_dseg_address[1] =
2889                    cpu_to_le32(MSD(ctx->fcp_cmnd_dma));
2890
2891                sp->flags |= SRB_FCP_CMND_DMA_VALID;
2892                cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
2893                /* Set total data segment count. */
2894                cmd_pkt->entry_count = (uint8_t)req_cnt;
2895                /* Specify response queue number where
2896                 * completion should happen
2897                 */
2898                cmd_pkt->entry_status = (uint8_t) rsp->id;
2899        } else {
2900                struct cmd_type_7 *cmd_pkt;
2901                req_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
2902                if (req->cnt < (req_cnt + 2)) {
2903                        cnt = (uint16_t)RD_REG_DWORD_RELAXED(
2904                            &reg->req_q_out[0]);
2905                        if (req->ring_index < cnt)
2906                                req->cnt = cnt - req->ring_index;
2907                        else
2908                                req->cnt = req->length -
2909                                        (req->ring_index - cnt);
2910                }
2911                if (req->cnt < (req_cnt + 2))
2912                        goto queuing_error;
2913
2914                cmd_pkt = (struct cmd_type_7 *)req->ring_ptr;
2915                cmd_pkt->handle = MAKE_HANDLE(req->id, handle);
2916
2917                /* Zero out remaining portion of packet. */
2918                /* tagged queuing modifier -- default is TSK_SIMPLE (0).*/
2919                clr_ptr = (uint32_t *)cmd_pkt + 2;
2920                memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
2921                cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
2922
2923                /* Set NPORT-ID and LUN number*/
2924                cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
2925                cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
2926                cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
2927                cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
2928                cmd_pkt->vp_index = sp->fcport->vp_idx;
2929
2930                int_to_scsilun(sp->cmd->device->lun, &cmd_pkt->lun);
2931                host_to_fcp_swap((uint8_t *)&cmd_pkt->lun,
2932                        sizeof(cmd_pkt->lun));
2933
2934                /*
2935                 * Update tagged queuing modifier -- default is TSK_SIMPLE (0).
2936                 */
2937                if (scsi_populate_tag_msg(cmd, tag)) {
2938                        switch (tag[0]) {
2939                        case HEAD_OF_QUEUE_TAG:
2940                                cmd_pkt->task = TSK_HEAD_OF_QUEUE;
2941                                break;
2942                        case ORDERED_QUEUE_TAG:
2943                                cmd_pkt->task = TSK_ORDERED;
2944                                break;
2945                        }
2946                }
2947
2948                /* Load SCSI command packet. */
2949                memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len);
2950                host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb));
2951
2952                cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
2953
2954                /* Build IOCB segments */
2955                qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds);
2956
2957                /* Set total data segment count. */
2958                cmd_pkt->entry_count = (uint8_t)req_cnt;
2959                /* Specify response queue number where
2960                 * completion should happen.
2961                 */
2962                cmd_pkt->entry_status = (uint8_t) rsp->id;
2963
2964        }
2965        /* Build command packet. */
2966        req->current_outstanding_cmd = handle;
2967        req->outstanding_cmds[handle] = sp;
2968        sp->handle = handle;
2969        sp->cmd->host_scribble = (unsigned char *)(unsigned long)handle;
2970        req->cnt -= req_cnt;
2971        wmb();
2972
2973        /* Adjust ring index. */
2974        req->ring_index++;
2975        if (req->ring_index == req->length) {
2976                req->ring_index = 0;
2977                req->ring_ptr = req->ring;
2978        } else
2979                req->ring_ptr++;
2980
2981        sp->flags |= SRB_DMA_VALID;
2982
2983        /* Set chip new ring index. */
2984        /* write, read and verify logic */
2985        dbval = dbval | (req->id << 8) | (req->ring_index << 16);
2986        if (ql2xdbwr)
2987                qla82xx_wr_32(ha, ha->nxdb_wr_ptr, dbval);
2988        else {
2989                WRT_REG_DWORD(
2990                        (unsigned long __iomem *)ha->nxdb_wr_ptr,
2991                        dbval);
2992                wmb();
2993                while (RD_REG_DWORD(ha->nxdb_rd_ptr) != dbval) {
2994                        WRT_REG_DWORD(
2995                                (unsigned long __iomem *)ha->nxdb_wr_ptr,
2996                                dbval);
2997                        wmb();
2998                }
2999        }
3000
3001        /* Manage unprocessed RIO/ZIO commands in response queue. */
3002        if (vha->flags.process_response_queue &&
3003            rsp->ring_ptr->signature != RESPONSE_PROCESSED)
3004                qla24xx_process_response_queue(vha, rsp);
3005
3006        spin_unlock_irqrestore(&ha->hardware_lock, flags);
3007        return QLA_SUCCESS;
3008
3009queuing_error_fcp_cmnd:
3010        dma_pool_free(ha->fcp_cmnd_dma_pool, ctx->fcp_cmnd, ctx->fcp_cmnd_dma);
3011queuing_error:
3012        if (tot_dsds)
3013                scsi_dma_unmap(cmd);
3014
3015        if (sp->ctx) {
3016                mempool_free(sp->ctx, ha->ctx_mempool);
3017                sp->ctx = NULL;
3018        }
3019        spin_unlock_irqrestore(&ha->hardware_lock, flags);
3020
3021        return QLA_FUNCTION_FAILED;
3022}
3023
3024static uint32_t *
3025qla82xx_read_flash_data(scsi_qla_host_t *vha, uint32_t *dwptr, uint32_t faddr,
3026        uint32_t length)
3027{
3028        uint32_t i;
3029        uint32_t val;
3030        struct qla_hw_data *ha = vha->hw;
3031
3032        /* Dword reads to flash. */
3033        for (i = 0; i < length/4; i++, faddr += 4) {
3034                if (qla82xx_rom_fast_read(ha, faddr, &val)) {
3035                        ql_log(ql_log_warn, vha, 0x0106,
3036                            "Do ROM fast read failed.\n");
3037                        goto done_read;
3038                }
3039                dwptr[i] = __constant_cpu_to_le32(val);
3040        }
3041done_read:
3042        return dwptr;
3043}
3044
3045static int
3046qla82xx_unprotect_flash(struct qla_hw_data *ha)
3047{
3048        int ret;
3049        uint32_t val;
3050        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3051
3052        ret = ql82xx_rom_lock_d(ha);
3053        if (ret < 0) {
3054                ql_log(ql_log_warn, vha, 0xb014,
3055                    "ROM Lock failed.\n");
3056                return ret;
3057        }
3058
3059        ret = qla82xx_read_status_reg(ha, &val);
3060        if (ret < 0)
3061                goto done_unprotect;
3062
3063        val &= ~(BLOCK_PROTECT_BITS << 2);
3064        ret = qla82xx_write_status_reg(ha, val);
3065        if (ret < 0) {
3066                val |= (BLOCK_PROTECT_BITS << 2);
3067                qla82xx_write_status_reg(ha, val);
3068        }
3069
3070        if (qla82xx_write_disable_flash(ha) != 0)
3071                ql_log(ql_log_warn, vha, 0xb015,
3072                    "Write disable failed.\n");
3073
3074done_unprotect:
3075        qla82xx_rom_unlock(ha);
3076        return ret;
3077}
3078
3079static int
3080qla82xx_protect_flash(struct qla_hw_data *ha)
3081{
3082        int ret;
3083        uint32_t val;
3084        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3085
3086        ret = ql82xx_rom_lock_d(ha);
3087        if (ret < 0) {
3088                ql_log(ql_log_warn, vha, 0xb016,
3089                    "ROM Lock failed.\n");
3090                return ret;
3091        }
3092
3093        ret = qla82xx_read_status_reg(ha, &val);
3094        if (ret < 0)
3095                goto done_protect;
3096
3097        val |= (BLOCK_PROTECT_BITS << 2);
3098        /* LOCK all sectors */
3099        ret = qla82xx_write_status_reg(ha, val);
3100        if (ret < 0)
3101                ql_log(ql_log_warn, vha, 0xb017,
3102                    "Write status register failed.\n");
3103
3104        if (qla82xx_write_disable_flash(ha) != 0)
3105                ql_log(ql_log_warn, vha, 0xb018,
3106                    "Write disable failed.\n");
3107done_protect:
3108        qla82xx_rom_unlock(ha);
3109        return ret;
3110}
3111
3112static int
3113qla82xx_erase_sector(struct qla_hw_data *ha, int addr)
3114{
3115        int ret = 0;
3116        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3117
3118        ret = ql82xx_rom_lock_d(ha);
3119        if (ret < 0) {
3120                ql_log(ql_log_warn, vha, 0xb019,
3121                    "ROM Lock failed.\n");
3122                return ret;
3123        }
3124
3125        qla82xx_flash_set_write_enable(ha);
3126        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ADDRESS, addr);
3127        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 3);
3128        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_SE);
3129
3130        if (qla82xx_wait_rom_done(ha)) {
3131                ql_log(ql_log_warn, vha, 0xb01a,
3132                    "Error waiting for rom done.\n");
3133                ret = -1;
3134                goto done;
3135        }
3136        ret = qla82xx_flash_wait_write_finish(ha);
3137done:
3138        qla82xx_rom_unlock(ha);
3139        return ret;
3140}
3141
3142/*
3143 * Address and length are byte address
3144 */
3145uint8_t *
3146qla82xx_read_optrom_data(struct scsi_qla_host *vha, uint8_t *buf,
3147        uint32_t offset, uint32_t length)
3148{
3149        scsi_block_requests(vha->host);
3150        qla82xx_read_flash_data(vha, (uint32_t *)buf, offset, length);
3151        scsi_unblock_requests(vha->host);
3152        return buf;
3153}
3154
3155static int
3156qla82xx_write_flash_data(struct scsi_qla_host *vha, uint32_t *dwptr,
3157        uint32_t faddr, uint32_t dwords)
3158{
3159        int ret;
3160        uint32_t liter;
3161        uint32_t sec_mask, rest_addr;
3162        dma_addr_t optrom_dma;
3163        void *optrom = NULL;
3164        int page_mode = 0;
3165        struct qla_hw_data *ha = vha->hw;
3166
3167        ret = -1;
3168
3169        /* Prepare burst-capable write on supported ISPs. */
3170        if (page_mode && !(faddr & 0xfff) &&
3171            dwords > OPTROM_BURST_DWORDS) {
3172                optrom = dma_alloc_coherent(&ha->pdev->dev, OPTROM_BURST_SIZE,
3173                    &optrom_dma, GFP_KERNEL);
3174                if (!optrom) {
3175                        ql_log(ql_log_warn, vha, 0xb01b,
3176                            "Unable to allocate memory "
3177                            "for optron burst write (%x KB).\n",
3178                            OPTROM_BURST_SIZE / 1024);
3179                }
3180        }
3181
3182        rest_addr = ha->fdt_block_size - 1;
3183        sec_mask = ~rest_addr;
3184
3185        ret = qla82xx_unprotect_flash(ha);
3186        if (ret) {
3187                ql_log(ql_log_warn, vha, 0xb01c,
3188                    "Unable to unprotect flash for update.\n");
3189                goto write_done;
3190        }
3191
3192        for (liter = 0; liter < dwords; liter++, faddr += 4, dwptr++) {
3193                /* Are we at the beginning of a sector? */
3194                if ((faddr & rest_addr) == 0) {
3195
3196                        ret = qla82xx_erase_sector(ha, faddr);
3197                        if (ret) {
3198                                ql_log(ql_log_warn, vha, 0xb01d,
3199                                    "Unable to erase sector: address=%x.\n",
3200                                    faddr);
3201                                break;
3202                        }
3203                }
3204
3205                /* Go with burst-write. */
3206                if (optrom && (liter + OPTROM_BURST_DWORDS) <= dwords) {
3207                        /* Copy data to DMA'ble buffer. */
3208                        memcpy(optrom, dwptr, OPTROM_BURST_SIZE);
3209
3210                        ret = qla2x00_load_ram(vha, optrom_dma,
3211                            (ha->flash_data_off | faddr),
3212                            OPTROM_BURST_DWORDS);
3213                        if (ret != QLA_SUCCESS) {
3214                                ql_log(ql_log_warn, vha, 0xb01e,
3215                                    "Unable to burst-write optrom segment "
3216                                    "(%x/%x/%llx).\n", ret,
3217                                    (ha->flash_data_off | faddr),
3218                                    (unsigned long long)optrom_dma);
3219                                ql_log(ql_log_warn, vha, 0xb01f,
3220                                    "Reverting to slow-write.\n");
3221
3222                                dma_free_coherent(&ha->pdev->dev,
3223                                    OPTROM_BURST_SIZE, optrom, optrom_dma);
3224                                optrom = NULL;
3225                        } else {
3226                                liter += OPTROM_BURST_DWORDS - 1;
3227                                faddr += OPTROM_BURST_DWORDS - 1;
3228                                dwptr += OPTROM_BURST_DWORDS - 1;
3229                                continue;
3230                        }
3231                }
3232
3233                ret = qla82xx_write_flash_dword(ha, faddr,
3234                    cpu_to_le32(*dwptr));
3235                if (ret) {
3236                        ql_dbg(ql_dbg_p3p, vha, 0xb020,
3237                            "Unable to program flash address=%x data=%x.\n",
3238                            faddr, *dwptr);
3239                        break;
3240                }
3241        }
3242
3243        ret = qla82xx_protect_flash(ha);
3244        if (ret)
3245                ql_log(ql_log_warn, vha, 0xb021,
3246                    "Unable to protect flash after update.\n");
3247write_done:
3248        if (optrom)
3249                dma_free_coherent(&ha->pdev->dev,
3250                    OPTROM_BURST_SIZE, optrom, optrom_dma);
3251        return ret;
3252}
3253
3254int
3255qla82xx_write_optrom_data(struct scsi_qla_host *vha, uint8_t *buf,
3256        uint32_t offset, uint32_t length)
3257{
3258        int rval;
3259
3260        /* Suspend HBA. */
3261        scsi_block_requests(vha->host);
3262        rval = qla82xx_write_flash_data(vha, (uint32_t *)buf, offset,
3263                length >> 2);
3264        scsi_unblock_requests(vha->host);
3265
3266        /* Convert return ISP82xx to generic */
3267        if (rval)
3268                rval = QLA_FUNCTION_FAILED;
3269        else
3270                rval = QLA_SUCCESS;
3271        return rval;
3272}
3273
3274void
3275qla82xx_start_iocbs(srb_t *sp)
3276{
3277        struct qla_hw_data *ha = sp->fcport->vha->hw;
3278        struct req_que *req = ha->req_q_map[0];
3279        struct device_reg_82xx __iomem *reg;
3280        uint32_t dbval;
3281
3282        /* Adjust ring index. */
3283        req->ring_index++;
3284        if (req->ring_index == req->length) {
3285                req->ring_index = 0;
3286                req->ring_ptr = req->ring;
3287        } else
3288                req->ring_ptr++;
3289
3290        reg = &ha->iobase->isp82;
3291        dbval = 0x04 | (ha->portnum << 5);
3292
3293        dbval = dbval | (req->id << 8) | (req->ring_index << 16);
3294        if (ql2xdbwr)
3295                qla82xx_wr_32(ha, ha->nxdb_wr_ptr, dbval);
3296        else {
3297                WRT_REG_DWORD((unsigned long __iomem *)ha->nxdb_wr_ptr, dbval);
3298                wmb();
3299                while (RD_REG_DWORD(ha->nxdb_rd_ptr) != dbval) {
3300                        WRT_REG_DWORD((unsigned long  __iomem *)ha->nxdb_wr_ptr,
3301                                dbval);
3302                        wmb();
3303                }
3304        }
3305}
3306
3307void qla82xx_rom_lock_recovery(struct qla_hw_data *ha)
3308{
3309        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3310
3311        if (qla82xx_rom_lock(ha))
3312                /* Someone else is holding the lock. */
3313                ql_log(ql_log_info, vha, 0xb022,
3314                    "Resetting rom_lock.\n");
3315
3316        /*
3317         * Either we got the lock, or someone
3318         * else died while holding it.
3319         * In either case, unlock.
3320         */
3321        qla82xx_rom_unlock(ha);
3322}
3323
3324/*
3325 * qla82xx_device_bootstrap
3326 *    Initialize device, set DEV_READY, start fw
3327 *
3328 * Note:
3329 *      IDC lock must be held upon entry
3330 *
3331 * Return:
3332 *    Success : 0
3333 *    Failed  : 1
3334 */
3335static int
3336qla82xx_device_bootstrap(scsi_qla_host_t *vha)
3337{
3338        int rval = QLA_SUCCESS;
3339        int i, timeout;
3340        uint32_t old_count, count;
3341        struct qla_hw_data *ha = vha->hw;
3342        int need_reset = 0, peg_stuck = 1;
3343
3344        need_reset = qla82xx_need_reset(ha);
3345
3346        old_count = qla82xx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER);
3347
3348        for (i = 0; i < 10; i++) {
3349                timeout = msleep_interruptible(200);
3350                if (timeout) {
3351                        qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3352                                QLA82XX_DEV_FAILED);
3353                        return QLA_FUNCTION_FAILED;
3354                }
3355
3356                count = qla82xx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER);
3357                if (count != old_count)
3358                        peg_stuck = 0;
3359        }
3360
3361        if (need_reset) {
3362                /* We are trying to perform a recovery here. */
3363                if (peg_stuck)
3364                        qla82xx_rom_lock_recovery(ha);
3365                goto dev_initialize;
3366        } else  {
3367                /* Start of day for this ha context. */
3368                if (peg_stuck) {
3369                        /* Either we are the first or recovery in progress. */
3370                        qla82xx_rom_lock_recovery(ha);
3371                        goto dev_initialize;
3372                } else
3373                        /* Firmware already running. */
3374                        goto dev_ready;
3375        }
3376
3377        return rval;
3378
3379dev_initialize:
3380        /* set to DEV_INITIALIZING */
3381        ql_log(ql_log_info, vha, 0x009e,
3382            "HW State: INITIALIZING.\n");
3383        qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_INITIALIZING);
3384
3385        /* Driver that sets device state to initializating sets IDC version */
3386        qla82xx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION, QLA82XX_IDC_VERSION);
3387
3388        qla82xx_idc_unlock(ha);
3389        rval = qla82xx_start_firmware(vha);
3390        qla82xx_idc_lock(ha);
3391
3392        if (rval != QLA_SUCCESS) {
3393                ql_log(ql_log_fatal, vha, 0x00ad,
3394                    "HW State: FAILED.\n");
3395                qla82xx_clear_drv_active(ha);
3396                qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_FAILED);
3397                return rval;
3398        }
3399
3400dev_ready:
3401        ql_log(ql_log_info, vha, 0x00ae,
3402            "HW State: READY.\n");
3403        qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_READY);
3404
3405        return QLA_SUCCESS;
3406}
3407
3408/*
3409* qla82xx_need_qsnt_handler
3410*    Code to start quiescence sequence
3411*
3412* Note:
3413*      IDC lock must be held upon entry
3414*
3415* Return: void
3416*/
3417
3418static void
3419qla82xx_need_qsnt_handler(scsi_qla_host_t *vha)
3420{
3421        struct qla_hw_data *ha = vha->hw;
3422        uint32_t dev_state, drv_state, drv_active;
3423        unsigned long reset_timeout;
3424
3425        if (vha->flags.online) {
3426                /*Block any further I/O and wait for pending cmnds to complete*/
3427                qla82xx_quiescent_state_cleanup(vha);
3428        }
3429
3430        /* Set the quiescence ready bit */
3431        qla82xx_set_qsnt_ready(ha);
3432
3433        /*wait for 30 secs for other functions to ack */
3434        reset_timeout = jiffies + (30 * HZ);
3435
3436        drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
3437        drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3438        /* Its 2 that is written when qsnt is acked, moving one bit */
3439        drv_active = drv_active << 0x01;
3440
3441        while (drv_state != drv_active) {
3442
3443                if (time_after_eq(jiffies, reset_timeout)) {
3444                        /* quiescence timeout, other functions didn't ack
3445                         * changing the state to DEV_READY
3446                         */
3447                        ql_log(ql_log_info, vha, 0xb023,
3448                            "%s : QUIESCENT TIMEOUT.\n", QLA2XXX_DRIVER_NAME);
3449                        ql_log(ql_log_info, vha, 0xb024,
3450                            "DRV_ACTIVE:%d DRV_STATE:%d.\n",
3451                            drv_active, drv_state);
3452                        qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3453                            QLA82XX_DEV_READY);
3454                        ql_log(ql_log_info, vha, 0xb025,
3455                            "HW State: DEV_READY.\n");
3456                        qla82xx_idc_unlock(ha);
3457                        qla2x00_perform_loop_resync(vha);
3458                        qla82xx_idc_lock(ha);
3459
3460                        qla82xx_clear_qsnt_ready(vha);
3461                        return;
3462                }
3463
3464                qla82xx_idc_unlock(ha);
3465                msleep(1000);
3466                qla82xx_idc_lock(ha);
3467
3468                drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
3469                drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3470                drv_active = drv_active << 0x01;
3471        }
3472        dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3473        /* everyone acked so set the state to DEV_QUIESCENCE */
3474        if (dev_state == QLA82XX_DEV_NEED_QUIESCENT) {
3475                ql_log(ql_log_info, vha, 0xb026,
3476                    "HW State: DEV_QUIESCENT.\n");
3477                qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_QUIESCENT);
3478        }
3479}
3480
3481/*
3482* qla82xx_wait_for_state_change
3483*    Wait for device state to change from given current state
3484*
3485* Note:
3486*     IDC lock must not be held upon entry
3487*
3488* Return:
3489*    Changed device state.
3490*/
3491uint32_t
3492qla82xx_wait_for_state_change(scsi_qla_host_t *vha, uint32_t curr_state)
3493{
3494        struct qla_hw_data *ha = vha->hw;
3495        uint32_t dev_state;
3496
3497        do {
3498                msleep(1000);
3499                qla82xx_idc_lock(ha);
3500                dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3501                qla82xx_idc_unlock(ha);
3502        } while (dev_state == curr_state);
3503
3504        return dev_state;
3505}
3506
3507static void
3508qla82xx_dev_failed_handler(scsi_qla_host_t *vha)
3509{
3510        struct qla_hw_data *ha = vha->hw;
3511
3512        /* Disable the board */
3513        ql_log(ql_log_fatal, vha, 0x00b8,
3514            "Disabling the board.\n");
3515
3516        qla82xx_idc_lock(ha);
3517        qla82xx_clear_drv_active(ha);
3518        qla82xx_idc_unlock(ha);
3519
3520        /* Set DEV_FAILED flag to disable timer */
3521        vha->device_flags |= DFLG_DEV_FAILED;
3522        qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
3523        qla2x00_mark_all_devices_lost(vha, 0);
3524        vha->flags.online = 0;
3525        vha->flags.init_done = 0;
3526}
3527
3528/*
3529 * qla82xx_need_reset_handler
3530 *    Code to start reset sequence
3531 *
3532 * Note:
3533 *      IDC lock must be held upon entry
3534 *
3535 * Return:
3536 *    Success : 0
3537 *    Failed  : 1
3538 */
3539static void
3540qla82xx_need_reset_handler(scsi_qla_host_t *vha)
3541{
3542        uint32_t dev_state, drv_state, drv_active;
3543        uint32_t active_mask = 0;
3544        unsigned long reset_timeout;
3545        struct qla_hw_data *ha = vha->hw;
3546        struct req_que *req = ha->req_q_map[0];
3547
3548        if (vha->flags.online) {
3549                qla82xx_idc_unlock(ha);
3550                qla2x00_abort_isp_cleanup(vha);
3551                ha->isp_ops->get_flash_version(vha, req->ring);
3552                ha->isp_ops->nvram_config(vha);
3553                qla82xx_idc_lock(ha);
3554        }
3555
3556        drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3557        if (!ha->flags.isp82xx_reset_owner) {
3558                ql_dbg(ql_dbg_p3p, vha, 0xb028,
3559                    "reset_acknowledged by 0x%x\n", ha->portnum);
3560                qla82xx_set_rst_ready(ha);
3561        } else {
3562                active_mask = ~(QLA82XX_DRV_ACTIVE << (ha->portnum * 4));
3563                drv_active &= active_mask;
3564                ql_dbg(ql_dbg_p3p, vha, 0xb029,
3565                    "active_mask: 0x%08x\n", active_mask);
3566        }
3567
3568        /* wait for 10 seconds for reset ack from all functions */
3569        reset_timeout = jiffies + (ha->nx_reset_timeout * HZ);
3570
3571        drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
3572        drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3573        dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3574
3575        ql_dbg(ql_dbg_p3p, vha, 0xb02a,
3576            "drv_state: 0x%08x, drv_active: 0x%08x, "
3577            "dev_state: 0x%08x, active_mask: 0x%08x\n",
3578            drv_state, drv_active, dev_state, active_mask);
3579
3580        while (drv_state != drv_active &&
3581            dev_state != QLA82XX_DEV_INITIALIZING) {
3582                if (time_after_eq(jiffies, reset_timeout)) {
3583                        ql_log(ql_log_warn, vha, 0x00b5,
3584                            "Reset timeout.\n");
3585                        break;
3586                }
3587                qla82xx_idc_unlock(ha);
3588                msleep(1000);
3589                qla82xx_idc_lock(ha);
3590                drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
3591                drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3592                if (ha->flags.isp82xx_reset_owner)
3593                        drv_active &= active_mask;
3594                dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3595        }
3596
3597        ql_dbg(ql_dbg_p3p, vha, 0xb02b,
3598            "drv_state: 0x%08x, drv_active: 0x%08x, "
3599            "dev_state: 0x%08x, active_mask: 0x%08x\n",
3600            drv_state, drv_active, dev_state, active_mask);
3601
3602        ql_log(ql_log_info, vha, 0x00b6,
3603            "Device state is 0x%x = %s.\n",
3604            dev_state,
3605            dev_state < MAX_STATES ? qdev_state(dev_state) : "Unknown");
3606
3607        /* Force to DEV_COLD unless someone else is starting a reset */
3608        if (dev_state != QLA82XX_DEV_INITIALIZING &&
3609            dev_state != QLA82XX_DEV_COLD) {
3610                ql_log(ql_log_info, vha, 0x00b7,
3611                    "HW State: COLD/RE-INIT.\n");
3612                qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_COLD);
3613                if (ql2xmdenable) {
3614                        if (qla82xx_md_collect(vha))
3615                                ql_log(ql_log_warn, vha, 0xb02c,
3616                                    "Not able to collect minidump.\n");
3617                } else
3618                        ql_log(ql_log_warn, vha, 0xb04f,
3619                            "Minidump disabled.\n");
3620        }
3621}
3622
3623int
3624qla82xx_check_md_needed(scsi_qla_host_t *vha)
3625{
3626        struct qla_hw_data *ha = vha->hw;
3627        uint16_t fw_major_version, fw_minor_version, fw_subminor_version;
3628        int rval = QLA_SUCCESS;
3629
3630        fw_major_version = ha->fw_major_version;
3631        fw_minor_version = ha->fw_minor_version;
3632        fw_subminor_version = ha->fw_subminor_version;
3633
3634        rval = qla2x00_get_fw_version(vha, &ha->fw_major_version,
3635            &ha->fw_minor_version, &ha->fw_subminor_version,
3636            &ha->fw_attributes, &ha->fw_memory_size,
3637            ha->mpi_version, &ha->mpi_capabilities,
3638            ha->phy_version);
3639
3640        if (rval != QLA_SUCCESS)
3641                return rval;
3642
3643        if (ql2xmdenable) {
3644                if (!ha->fw_dumped) {
3645                        if (fw_major_version != ha->fw_major_version ||
3646                            fw_minor_version != ha->fw_minor_version ||
3647                            fw_subminor_version != ha->fw_subminor_version) {
3648
3649                                ql_log(ql_log_info, vha, 0xb02d,
3650                                    "Firmware version differs "
3651                                    "Previous version: %d:%d:%d - "
3652                                    "New version: %d:%d:%d\n",
3653                                    ha->fw_major_version,
3654                                    ha->fw_minor_version,
3655                                    ha->fw_subminor_version,
3656                                    fw_major_version, fw_minor_version,
3657                                    fw_subminor_version);
3658                                /* Release MiniDump resources */
3659                                qla82xx_md_free(vha);
3660                                /* ALlocate MiniDump resources */
3661                                qla82xx_md_prep(vha);
3662                        } else
3663                                ql_log(ql_log_info, vha, 0xb02e,
3664                                    "Firmware dump available to retrieve\n",
3665                                    vha->host_no);
3666                }
3667        }
3668        return rval;
3669}
3670
3671
3672int
3673qla82xx_check_fw_alive(scsi_qla_host_t *vha)
3674{
3675        uint32_t fw_heartbeat_counter;
3676        int status = 0;
3677
3678        fw_heartbeat_counter = qla82xx_rd_32(vha->hw,
3679                QLA82XX_PEG_ALIVE_COUNTER);
3680        /* all 0xff, assume AER/EEH in progress, ignore */
3681        if (fw_heartbeat_counter == 0xffffffff) {
3682                ql_dbg(ql_dbg_timer, vha, 0x6003,
3683                    "FW heartbeat counter is 0xffffffff, "
3684                    "returning status=%d.\n", status);
3685                return status;
3686        }
3687        if (vha->fw_heartbeat_counter == fw_heartbeat_counter) {
3688                vha->seconds_since_last_heartbeat++;
3689                /* FW not alive after 2 seconds */
3690                if (vha->seconds_since_last_heartbeat == 2) {
3691                        vha->seconds_since_last_heartbeat = 0;
3692                        status = 1;
3693                }
3694        } else
3695                vha->seconds_since_last_heartbeat = 0;
3696        vha->fw_heartbeat_counter = fw_heartbeat_counter;
3697        if (status)
3698                ql_dbg(ql_dbg_timer, vha, 0x6004,
3699                    "Returning status=%d.\n", status);
3700        return status;
3701}
3702
3703/*
3704 * qla82xx_device_state_handler
3705 *      Main state handler
3706 *
3707 * Note:
3708 *      IDC lock must be held upon entry
3709 *
3710 * Return:
3711 *    Success : 0
3712 *    Failed  : 1
3713 */
3714int
3715qla82xx_device_state_handler(scsi_qla_host_t *vha)
3716{
3717        uint32_t dev_state;
3718        uint32_t old_dev_state;
3719        int rval = QLA_SUCCESS;
3720        unsigned long dev_init_timeout;
3721        struct qla_hw_data *ha = vha->hw;
3722        int loopcount = 0;
3723
3724        qla82xx_idc_lock(ha);
3725        if (!vha->flags.init_done)
3726                qla82xx_set_drv_active(vha);
3727
3728        dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3729        old_dev_state = dev_state;
3730        ql_log(ql_log_info, vha, 0x009b,
3731            "Device state is 0x%x = %s.\n",
3732            dev_state,
3733            dev_state < MAX_STATES ? qdev_state(dev_state) : "Unknown");
3734
3735        /* wait for 30 seconds for device to go ready */
3736        dev_init_timeout = jiffies + (ha->nx_dev_init_timeout * HZ);
3737
3738        while (1) {
3739
3740                if (time_after_eq(jiffies, dev_init_timeout)) {
3741                        ql_log(ql_log_fatal, vha, 0x009c,
3742                            "Device init failed.\n");
3743                        rval = QLA_FUNCTION_FAILED;
3744                        break;
3745                }
3746                dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3747                if (old_dev_state != dev_state) {
3748                        loopcount = 0;
3749                        old_dev_state = dev_state;
3750                }
3751                if (loopcount < 5) {
3752                        ql_log(ql_log_info, vha, 0x009d,
3753                            "Device state is 0x%x = %s.\n",
3754                            dev_state,
3755                            dev_state < MAX_STATES ? qdev_state(dev_state) :
3756                            "Unknown");
3757                }
3758
3759                switch (dev_state) {
3760                case QLA82XX_DEV_READY:
3761                        qla82xx_check_md_needed(vha);
3762                        ha->flags.isp82xx_reset_owner = 0;
3763                        goto exit;
3764                case QLA82XX_DEV_COLD:
3765                        rval = qla82xx_device_bootstrap(vha);
3766                        break;
3767                case QLA82XX_DEV_INITIALIZING:
3768                        qla82xx_idc_unlock(ha);
3769                        msleep(1000);
3770                        qla82xx_idc_lock(ha);
3771                        break;
3772                case QLA82XX_DEV_NEED_RESET:
3773                        if (!ql2xdontresethba)
3774                                qla82xx_need_reset_handler(vha);
3775                        else {
3776                                qla82xx_idc_unlock(ha);
3777                                msleep(1000);
3778                                qla82xx_idc_lock(ha);
3779                        }
3780                        dev_init_timeout = jiffies +
3781                            (ha->nx_dev_init_timeout * HZ);
3782                        break;
3783                case QLA82XX_DEV_NEED_QUIESCENT:
3784                        qla82xx_need_qsnt_handler(vha);
3785                        /* Reset timeout value after quiescence handler */
3786                        dev_init_timeout = jiffies + (ha->nx_dev_init_timeout\
3787                                                         * HZ);
3788                        break;
3789                case QLA82XX_DEV_QUIESCENT:
3790                        /* Owner will exit and other will wait for the state
3791                         * to get changed
3792                         */
3793                        if (ha->flags.quiesce_owner)
3794                                goto exit;
3795
3796                        qla82xx_idc_unlock(ha);
3797                        msleep(1000);
3798                        qla82xx_idc_lock(ha);
3799
3800                        /* Reset timeout value after quiescence handler */
3801                        dev_init_timeout = jiffies + (ha->nx_dev_init_timeout\
3802                                                         * HZ);
3803                        break;
3804                case QLA82XX_DEV_FAILED:
3805                        qla82xx_dev_failed_handler(vha);
3806                        rval = QLA_FUNCTION_FAILED;
3807                        goto exit;
3808                default:
3809                        qla82xx_idc_unlock(ha);
3810                        msleep(1000);
3811                        qla82xx_idc_lock(ha);
3812                }
3813                loopcount++;
3814        }
3815exit:
3816        qla82xx_idc_unlock(ha);
3817        return rval;
3818}
3819
3820void qla82xx_clear_pending_mbx(scsi_qla_host_t *vha)
3821{
3822        struct qla_hw_data *ha = vha->hw;
3823
3824        if (ha->flags.mbox_busy) {
3825                ha->flags.mbox_int = 1;
3826                ha->flags.mbox_busy = 0;
3827                ql_log(ql_log_warn, vha, 0x6010,
3828                    "Doing premature completion of mbx command.\n");
3829                if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags))
3830                        complete(&ha->mbx_intr_comp);
3831        }
3832}
3833
3834void qla82xx_watchdog(scsi_qla_host_t *vha)
3835{
3836        uint32_t dev_state, halt_status;
3837        struct qla_hw_data *ha = vha->hw;
3838
3839        /* don't poll if reset is going on */
3840        if (!ha->flags.isp82xx_reset_hdlr_active) {
3841                dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3842                if (dev_state == QLA82XX_DEV_NEED_RESET &&
3843                    !test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags)) {
3844                        ql_log(ql_log_warn, vha, 0x6001,
3845                            "Adapter reset needed.\n");
3846                        set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3847                        qla2xxx_wake_dpc(vha);
3848                } else if (dev_state == QLA82XX_DEV_NEED_QUIESCENT &&
3849                        !test_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags)) {
3850                        ql_log(ql_log_warn, vha, 0x6002,
3851                            "Quiescent needed.\n");
3852                        set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
3853                        qla2xxx_wake_dpc(vha);
3854                } else {
3855                        if (qla82xx_check_fw_alive(vha)) {
3856                                ql_dbg(ql_dbg_timer, vha, 0x6011,
3857                                    "disabling pause transmit on port 0 & 1.\n");
3858                                qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
3859                                    CRB_NIU_XG_PAUSE_CTL_P0|CRB_NIU_XG_PAUSE_CTL_P1);
3860                                halt_status = qla82xx_rd_32(ha,
3861                                    QLA82XX_PEG_HALT_STATUS1);
3862                                ql_log(ql_log_info, vha, 0x6005,
3863                                    "dumping hw/fw registers:.\n "
3864                                    " PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,.\n "
3865                                    " PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,.\n "
3866                                    " PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,.\n "
3867                                    " PEG_NET_4_PC: 0x%x.\n", halt_status,
3868                                    qla82xx_rd_32(ha, QLA82XX_PEG_HALT_STATUS2),
3869                                    qla82xx_rd_32(ha,
3870                                            QLA82XX_CRB_PEG_NET_0 + 0x3c),
3871                                    qla82xx_rd_32(ha,
3872                                            QLA82XX_CRB_PEG_NET_1 + 0x3c),
3873                                    qla82xx_rd_32(ha,
3874                                            QLA82XX_CRB_PEG_NET_2 + 0x3c),
3875                                    qla82xx_rd_32(ha,
3876                                            QLA82XX_CRB_PEG_NET_3 + 0x3c),
3877                                    qla82xx_rd_32(ha,
3878                                            QLA82XX_CRB_PEG_NET_4 + 0x3c));
3879                                if (LSW(MSB(halt_status)) == 0x67)
3880                                        ql_log(ql_log_warn, vha, 0xb052,
3881                                            "Firmware aborted with "
3882                                            "error code 0x00006700. Device is "
3883                                            "being reset.\n");
3884                                if (halt_status & HALT_STATUS_UNRECOVERABLE) {
3885                                        set_bit(ISP_UNRECOVERABLE,
3886                                            &vha->dpc_flags);
3887                                } else {
3888                                        ql_log(ql_log_info, vha, 0x6006,
3889                                            "Detect abort  needed.\n");
3890                                        set_bit(ISP_ABORT_NEEDED,
3891                                            &vha->dpc_flags);
3892                                }
3893                                qla2xxx_wake_dpc(vha);
3894                                ha->flags.isp82xx_fw_hung = 1;
3895                                ql_log(ql_log_warn, vha, 0x6007, "Firmware hung.\n");
3896                                qla82xx_clear_pending_mbx(vha);
3897                        }
3898                }
3899        }
3900}
3901
3902int qla82xx_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
3903{
3904        int rval;
3905        rval = qla82xx_device_state_handler(vha);
3906        return rval;
3907}
3908
3909void
3910qla82xx_set_reset_owner(scsi_qla_host_t *vha)
3911{
3912        struct qla_hw_data *ha = vha->hw;
3913        uint32_t dev_state;
3914
3915        dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3916        if (dev_state == QLA82XX_DEV_READY) {
3917                ql_log(ql_log_info, vha, 0xb02f,
3918                    "HW State: NEED RESET\n");
3919                qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3920                        QLA82XX_DEV_NEED_RESET);
3921                ha->flags.isp82xx_reset_owner = 1;
3922                ql_dbg(ql_dbg_p3p, vha, 0xb030,
3923                    "reset_owner is 0x%x\n", ha->portnum);
3924        } else
3925                ql_log(ql_log_info, vha, 0xb031,
3926                    "Device state is 0x%x = %s.\n",
3927                    dev_state,
3928                    dev_state < MAX_STATES ? qdev_state(dev_state) : "Unknown");
3929}
3930
3931/*
3932 *  qla82xx_abort_isp
3933 *      Resets ISP and aborts all outstanding commands.
3934 *
3935 * Input:
3936 *      ha           = adapter block pointer.
3937 *
3938 * Returns:
3939 *      0 = success
3940 */
3941int
3942qla82xx_abort_isp(scsi_qla_host_t *vha)
3943{
3944        int rval;
3945        struct qla_hw_data *ha = vha->hw;
3946
3947        if (vha->device_flags & DFLG_DEV_FAILED) {
3948                ql_log(ql_log_warn, vha, 0x8024,
3949                    "Device in failed state, exiting.\n");
3950                return QLA_SUCCESS;
3951        }
3952        ha->flags.isp82xx_reset_hdlr_active = 1;
3953
3954        qla82xx_idc_lock(ha);
3955        qla82xx_set_reset_owner(vha);
3956        qla82xx_idc_unlock(ha);
3957
3958        rval = qla82xx_device_state_handler(vha);
3959
3960        qla82xx_idc_lock(ha);
3961        qla82xx_clear_rst_ready(ha);
3962        qla82xx_idc_unlock(ha);
3963
3964        if (rval == QLA_SUCCESS) {
3965                ha->flags.isp82xx_fw_hung = 0;
3966                ha->flags.isp82xx_reset_hdlr_active = 0;
3967                qla82xx_restart_isp(vha);
3968        }
3969
3970        if (rval) {
3971                vha->flags.online = 1;
3972                if (test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
3973                        if (ha->isp_abort_cnt == 0) {
3974                                ql_log(ql_log_warn, vha, 0x8027,
3975                                    "ISP error recover failed - board "
3976                                    "disabled.\n");
3977                                /*
3978                                 * The next call disables the board
3979                                 * completely.
3980                                 */
3981                                ha->isp_ops->reset_adapter(vha);
3982                                vha->flags.online = 0;
3983                                clear_bit(ISP_ABORT_RETRY,
3984                                    &vha->dpc_flags);
3985                                rval = QLA_SUCCESS;
3986                        } else { /* schedule another ISP abort */
3987                                ha->isp_abort_cnt--;
3988                                ql_log(ql_log_warn, vha, 0x8036,
3989                                    "ISP abort - retry remaining %d.\n",
3990                                    ha->isp_abort_cnt);
3991                                rval = QLA_FUNCTION_FAILED;
3992                        }
3993                } else {
3994                        ha->isp_abort_cnt = MAX_RETRIES_OF_ISP_ABORT;
3995                        ql_dbg(ql_dbg_taskm, vha, 0x8029,
3996                            "ISP error recovery - retrying (%d) more times.\n",
3997                            ha->isp_abort_cnt);
3998                        set_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
3999                        rval = QLA_FUNCTION_FAILED;
4000                }
4001        }
4002        return rval;
4003}
4004
4005/*
4006 *  qla82xx_fcoe_ctx_reset
4007 *      Perform a quick reset and aborts all outstanding commands.
4008 *      This will only perform an FCoE context reset and avoids a full blown
4009 *      chip reset.
4010 *
4011 * Input:
4012 *      ha = adapter block pointer.
4013 *      is_reset_path = flag for identifying the reset path.
4014 *
4015 * Returns:
4016 *      0 = success
4017 */
4018int qla82xx_fcoe_ctx_reset(scsi_qla_host_t *vha)
4019{
4020        int rval = QLA_FUNCTION_FAILED;
4021
4022        if (vha->flags.online) {
4023                /* Abort all outstanding commands, so as to be requeued later */
4024                qla2x00_abort_isp_cleanup(vha);
4025        }
4026
4027        /* Stop currently executing firmware.
4028         * This will destroy existing FCoE context at the F/W end.
4029         */
4030        qla2x00_try_to_stop_firmware(vha);
4031
4032        /* Restart. Creates a new FCoE context on INIT_FIRMWARE. */
4033        rval = qla82xx_restart_isp(vha);
4034
4035        return rval;
4036}
4037
4038/*
4039 * qla2x00_wait_for_fcoe_ctx_reset
4040 *    Wait till the FCoE context is reset.
4041 *
4042 * Note:
4043 *    Does context switching here.
4044 *    Release SPIN_LOCK (if any) before calling this routine.
4045 *
4046 * Return:
4047 *    Success (fcoe_ctx reset is done) : 0
4048 *    Failed  (fcoe_ctx reset not completed within max loop timout ) : 1
4049 */
4050int qla2x00_wait_for_fcoe_ctx_reset(scsi_qla_host_t *vha)
4051{
4052        int status = QLA_FUNCTION_FAILED;
4053        unsigned long wait_reset;
4054
4055        wait_reset = jiffies + (MAX_LOOP_TIMEOUT * HZ);
4056        while ((test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) ||
4057            test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
4058            && time_before(jiffies, wait_reset)) {
4059
4060                set_current_state(TASK_UNINTERRUPTIBLE);
4061                schedule_timeout(HZ);
4062
4063                if (!test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) &&
4064                    !test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) {
4065                        status = QLA_SUCCESS;
4066                        break;
4067                }
4068        }
4069        ql_dbg(ql_dbg_p3p, vha, 0xb027,
4070            "%s status=%d.\n", status);
4071
4072        return status;
4073}
4074
4075void
4076qla82xx_chip_reset_cleanup(scsi_qla_host_t *vha)
4077{
4078        int i;
4079        unsigned long flags;
4080        struct qla_hw_data *ha = vha->hw;
4081
4082        /* Check if 82XX firmware is alive or not
4083         * We may have arrived here from NEED_RESET
4084         * detection only
4085         */
4086        if (!ha->flags.isp82xx_fw_hung) {
4087                for (i = 0; i < 2; i++) {
4088                        msleep(1000);
4089                        if (qla82xx_check_fw_alive(vha)) {
4090                                ha->flags.isp82xx_fw_hung = 1;
4091                                qla82xx_clear_pending_mbx(vha);
4092                                break;
4093                        }
4094                }
4095        }
4096        ql_dbg(ql_dbg_init, vha, 0x00b0,
4097            "Entered %s fw_hung=%d.\n",
4098            __func__, ha->flags.isp82xx_fw_hung);
4099
4100        /* Abort all commands gracefully if fw NOT hung */
4101        if (!ha->flags.isp82xx_fw_hung) {
4102                int cnt, que;
4103                srb_t *sp;
4104                struct req_que *req;
4105
4106                spin_lock_irqsave(&ha->hardware_lock, flags);
4107                for (que = 0; que < ha->max_req_queues; que++) {
4108                        req = ha->req_q_map[que];
4109                        if (!req)
4110                                continue;
4111                        for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
4112                                sp = req->outstanding_cmds[cnt];
4113                                if (sp) {
4114                                        if (!sp->ctx ||
4115                                            (sp->flags & SRB_FCP_CMND_DMA_VALID)) {
4116                                                spin_unlock_irqrestore(
4117                                                    &ha->hardware_lock, flags);
4118                                                if (ha->isp_ops->abort_command(sp)) {
4119                                                        ql_log(ql_log_info, vha,
4120                                                            0x00b1,
4121                                                            "mbx abort failed.\n");
4122                                                } else {
4123                                                        ql_log(ql_log_info, vha,
4124                                                            0x00b2,
4125                                                            "mbx abort success.\n");
4126                                                }
4127                                                spin_lock_irqsave(&ha->hardware_lock, flags);
4128                                        }
4129                                }
4130                        }
4131                }
4132                spin_unlock_irqrestore(&ha->hardware_lock, flags);
4133
4134                /* Wait for pending cmds (physical and virtual) to complete */
4135                if (!qla2x00_eh_wait_for_pending_commands(vha, 0, 0,
4136                    WAIT_HOST) == QLA_SUCCESS) {
4137                        ql_dbg(ql_dbg_init, vha, 0x00b3,
4138                            "Done wait for "
4139                            "pending commands.\n");
4140                }
4141        }
4142}
4143
4144/* Minidump related functions */
4145int
4146qla82xx_md_rw_32(struct qla_hw_data *ha, uint32_t off, u32 data, uint8_t flag)
4147{
4148        uint32_t  off_value, rval = 0;
4149
4150        WRT_REG_DWORD((void *)(CRB_WINDOW_2M + ha->nx_pcibase),
4151            (off & 0xFFFF0000));
4152
4153        /* Read back value to make sure write has gone through */
4154        RD_REG_DWORD((void *)(CRB_WINDOW_2M + ha->nx_pcibase));
4155        off_value  = (off & 0x0000FFFF);
4156
4157        if (flag)
4158                WRT_REG_DWORD((void *)
4159                    (off_value + CRB_INDIRECT_2M + ha->nx_pcibase),
4160                    data);
4161        else
4162                rval = RD_REG_DWORD((void *)
4163                    (off_value + CRB_INDIRECT_2M + ha->nx_pcibase));
4164
4165        return rval;
4166}
4167
4168static int
4169qla82xx_minidump_process_control(scsi_qla_host_t *vha,
4170        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
4171{
4172        struct qla_hw_data *ha = vha->hw;
4173        struct qla82xx_md_entry_crb *crb_entry;
4174        uint32_t read_value, opcode, poll_time;
4175        uint32_t addr, index, crb_addr;
4176        unsigned long wtime;
4177        struct qla82xx_md_template_hdr *tmplt_hdr;
4178        uint32_t rval = QLA_SUCCESS;
4179        int i;
4180
4181        tmplt_hdr = (struct qla82xx_md_template_hdr *)ha->md_tmplt_hdr;
4182        crb_entry = (struct qla82xx_md_entry_crb *)entry_hdr;
4183        crb_addr = crb_entry->addr;
4184
4185        for (i = 0; i < crb_entry->op_count; i++) {
4186                opcode = crb_entry->crb_ctrl.opcode;
4187                if (opcode & QLA82XX_DBG_OPCODE_WR) {
4188                        qla82xx_md_rw_32(ha, crb_addr,
4189                            crb_entry->value_1, 1);
4190                        opcode &= ~QLA82XX_DBG_OPCODE_WR;
4191                }
4192
4193                if (opcode & QLA82XX_DBG_OPCODE_RW) {
4194                        read_value = qla82xx_md_rw_32(ha, crb_addr, 0, 0);
4195                        qla82xx_md_rw_32(ha, crb_addr, read_value, 1);
4196                        opcode &= ~QLA82XX_DBG_OPCODE_RW;
4197                }
4198
4199                if (opcode & QLA82XX_DBG_OPCODE_AND) {
4200                        read_value = qla82xx_md_rw_32(ha, crb_addr, 0, 0);
4201                        read_value &= crb_entry->value_2;
4202                        opcode &= ~QLA82XX_DBG_OPCODE_AND;
4203                        if (opcode & QLA82XX_DBG_OPCODE_OR) {
4204                                read_value |= crb_entry->value_3;
4205                                opcode &= ~QLA82XX_DBG_OPCODE_OR;
4206                        }
4207                        qla82xx_md_rw_32(ha, crb_addr, read_value, 1);
4208                }
4209
4210                if (opcode & QLA82XX_DBG_OPCODE_OR) {
4211                        read_value = qla82xx_md_rw_32(ha, crb_addr, 0, 0);
4212                        read_value |= crb_entry->value_3;
4213                        qla82xx_md_rw_32(ha, crb_addr, read_value, 1);
4214                        opcode &= ~QLA82XX_DBG_OPCODE_OR;
4215                }
4216
4217                if (opcode & QLA82XX_DBG_OPCODE_POLL) {
4218                        poll_time = crb_entry->crb_strd.poll_timeout;
4219                        wtime = jiffies + poll_time;
4220                        read_value = qla82xx_md_rw_32(ha, crb_addr, 0, 0);
4221
4222                        do {
4223                                if ((read_value & crb_entry->value_2)
4224                                    == crb_entry->value_1)
4225                                        break;
4226                                else if (time_after_eq(jiffies, wtime)) {
4227                                        /* capturing dump failed */
4228                                        rval = QLA_FUNCTION_FAILED;
4229                                        break;
4230                                } else
4231                                        read_value = qla82xx_md_rw_32(ha,
4232                                            crb_addr, 0, 0);
4233                        } while (1);
4234                        opcode &= ~QLA82XX_DBG_OPCODE_POLL;
4235                }
4236
4237                if (opcode & QLA82XX_DBG_OPCODE_RDSTATE) {
4238                        if (crb_entry->crb_strd.state_index_a) {
4239                                index = crb_entry->crb_strd.state_index_a;
4240                                addr = tmplt_hdr->saved_state_array[index];
4241                        } else
4242                                addr = crb_addr;
4243
4244                        read_value = qla82xx_md_rw_32(ha, addr, 0, 0);
4245                        index = crb_entry->crb_ctrl.state_index_v;
4246                        tmplt_hdr->saved_state_array[index] = read_value;
4247                        opcode &= ~QLA82XX_DBG_OPCODE_RDSTATE;
4248                }
4249
4250                if (opcode & QLA82XX_DBG_OPCODE_WRSTATE) {
4251                        if (crb_entry->crb_strd.state_index_a) {
4252                                index = crb_entry->crb_strd.state_index_a;
4253                                addr = tmplt_hdr->saved_state_array[index];
4254                        } else
4255                                addr = crb_addr;
4256
4257                        if (crb_entry->crb_ctrl.state_index_v) {
4258                                index = crb_entry->crb_ctrl.state_index_v;
4259                                read_value =
4260                                    tmplt_hdr->saved_state_array[index];
4261                        } else
4262                                read_value = crb_entry->value_1;
4263
4264                        qla82xx_md_rw_32(ha, addr, read_value, 1);
4265                        opcode &= ~QLA82XX_DBG_OPCODE_WRSTATE;
4266                }
4267
4268                if (opcode & QLA82XX_DBG_OPCODE_MDSTATE) {
4269                        index = crb_entry->crb_ctrl.state_index_v;
4270                        read_value = tmplt_hdr->saved_state_array[index];
4271                        read_value <<= crb_entry->crb_ctrl.shl;
4272                        read_value >>= crb_entry->crb_ctrl.shr;
4273                        if (crb_entry->value_2)
4274                                read_value &= crb_entry->value_2;
4275                        read_value |= crb_entry->value_3;
4276                        read_value += crb_entry->value_1;
4277                        tmplt_hdr->saved_state_array[index] = read_value;
4278                        opcode &= ~QLA82XX_DBG_OPCODE_MDSTATE;
4279                }
4280                crb_addr += crb_entry->crb_strd.addr_stride;
4281        }
4282        return rval;
4283}
4284
4285static void
4286qla82xx_minidump_process_rdocm(scsi_qla_host_t *vha,
4287        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
4288{
4289        struct qla_hw_data *ha = vha->hw;
4290        uint32_t r_addr, r_stride, loop_cnt, i, r_value;
4291        struct qla82xx_md_entry_rdocm *ocm_hdr;
4292        uint32_t *data_ptr = *d_ptr;
4293
4294        ocm_hdr = (struct qla82xx_md_entry_rdocm *)entry_hdr;
4295        r_addr = ocm_hdr->read_addr;
4296        r_stride = ocm_hdr->read_addr_stride;
4297        loop_cnt = ocm_hdr->op_count;
4298
4299        for (i = 0; i < loop_cnt; i++) {
4300                r_value = RD_REG_DWORD((void *)(r_addr + ha->nx_pcibase));
4301                *data_ptr++ = cpu_to_le32(r_value);
4302                r_addr += r_stride;
4303        }
4304        *d_ptr = data_ptr;
4305}
4306
4307static void
4308qla82xx_minidump_process_rdmux(scsi_qla_host_t *vha,
4309        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
4310{
4311        struct qla_hw_data *ha = vha->hw;
4312        uint32_t r_addr, s_stride, s_addr, s_value, loop_cnt, i, r_value;
4313        struct qla82xx_md_entry_mux *mux_hdr;
4314        uint32_t *data_ptr = *d_ptr;
4315
4316        mux_hdr = (struct qla82xx_md_entry_mux *)entry_hdr;
4317        r_addr = mux_hdr->read_addr;
4318        s_addr = mux_hdr->select_addr;
4319        s_stride = mux_hdr->select_value_stride;
4320        s_value = mux_hdr->select_value;
4321        loop_cnt = mux_hdr->op_count;
4322
4323        for (i = 0; i < loop_cnt; i++) {
4324                qla82xx_md_rw_32(ha, s_addr, s_value, 1);
4325                r_value = qla82xx_md_rw_32(ha, r_addr, 0, 0);
4326                *data_ptr++ = cpu_to_le32(s_value);
4327                *data_ptr++ = cpu_to_le32(r_value);
4328                s_value += s_stride;
4329        }
4330        *d_ptr = data_ptr;
4331}
4332
4333static void
4334qla82xx_minidump_process_rdcrb(scsi_qla_host_t *vha,
4335        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
4336{
4337        struct qla_hw_data *ha = vha->hw;
4338        uint32_t r_addr, r_stride, loop_cnt, i, r_value;
4339        struct qla82xx_md_entry_crb *crb_hdr;
4340        uint32_t *data_ptr = *d_ptr;
4341
4342        crb_hdr = (struct qla82xx_md_entry_crb *)entry_hdr;
4343        r_addr = crb_hdr->addr;
4344        r_stride = crb_hdr->crb_strd.addr_stride;
4345        loop_cnt = crb_hdr->op_count;
4346
4347        for (i = 0; i < loop_cnt; i++) {
4348                r_value = qla82xx_md_rw_32(ha, r_addr, 0, 0);
4349                *data_ptr++ = cpu_to_le32(r_addr);
4350                *data_ptr++ = cpu_to_le32(r_value);
4351                r_addr += r_stride;
4352        }
4353        *d_ptr = data_ptr;
4354}
4355
4356static int
4357qla82xx_minidump_process_l2tag(scsi_qla_host_t *vha,
4358        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
4359{
4360        struct qla_hw_data *ha = vha->hw;
4361        uint32_t addr, r_addr, c_addr, t_r_addr;
4362        uint32_t i, k, loop_count, t_value, r_cnt, r_value;
4363        unsigned long p_wait, w_time, p_mask;
4364        uint32_t c_value_w, c_value_r;
4365        struct qla82xx_md_entry_cache *cache_hdr;
4366        int rval = QLA_FUNCTION_FAILED;
4367        uint32_t *data_ptr = *d_ptr;
4368
4369        cache_hdr = (struct qla82xx_md_entry_cache *)entry_hdr;
4370        loop_count = cache_hdr->op_count;
4371        r_addr = cache_hdr->read_addr;
4372        c_addr = cache_hdr->control_addr;
4373        c_value_w = cache_hdr->cache_ctrl.write_value;
4374
4375        t_r_addr = cache_hdr->tag_reg_addr;
4376        t_value = cache_hdr->addr_ctrl.init_tag_value;
4377        r_cnt = cache_hdr->read_ctrl.read_addr_cnt;
4378        p_wait = cache_hdr->cache_ctrl.poll_wait;
4379        p_mask = cache_hdr->cache_ctrl.poll_mask;
4380
4381        for (i = 0; i < loop_count; i++) {
4382                qla82xx_md_rw_32(ha, t_r_addr, t_value, 1);
4383                if (c_value_w)
4384                        qla82xx_md_rw_32(ha, c_addr, c_value_w, 1);
4385
4386                if (p_mask) {
4387                        w_time = jiffies + p_wait;
4388                        do {
4389                                c_value_r = qla82xx_md_rw_32(ha, c_addr, 0, 0);
4390                                if ((c_value_r & p_mask) == 0)
4391                                        break;
4392                                else if (time_after_eq(jiffies, w_time)) {
4393                                        /* capturing dump failed */
4394                                        ql_dbg(ql_dbg_p3p, vha, 0xb032,
4395                                            "c_value_r: 0x%x, poll_mask: 0x%lx, "
4396                                            "w_time: 0x%lx\n",
4397                                            c_value_r, p_mask, w_time);
4398                                        return rval;
4399                                }
4400                        } while (1);
4401                }
4402
4403                addr = r_addr;
4404                for (k = 0; k < r_cnt; k++) {
4405                        r_value = qla82xx_md_rw_32(ha, addr, 0, 0);
4406                        *data_ptr++ = cpu_to_le32(r_value);
4407                        addr += cache_hdr->read_ctrl.read_addr_stride;
4408                }
4409                t_value += cache_hdr->addr_ctrl.tag_value_stride;
4410        }
4411        *d_ptr = data_ptr;
4412        return QLA_SUCCESS;
4413}
4414
4415static void
4416qla82xx_minidump_process_l1cache(scsi_qla_host_t *vha,
4417        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
4418{
4419        struct qla_hw_data *ha = vha->hw;
4420        uint32_t addr, r_addr, c_addr, t_r_addr;
4421        uint32_t i, k, loop_count, t_value, r_cnt, r_value;
4422        uint32_t c_value_w;
4423        struct qla82xx_md_entry_cache *cache_hdr;
4424        uint32_t *data_ptr = *d_ptr;
4425
4426        cache_hdr = (struct qla82xx_md_entry_cache *)entry_hdr;
4427        loop_count = cache_hdr->op_count;
4428        r_addr = cache_hdr->read_addr;
4429        c_addr = cache_hdr->control_addr;
4430        c_value_w = cache_hdr->cache_ctrl.write_value;
4431
4432        t_r_addr = cache_hdr->tag_reg_addr;
4433        t_value = cache_hdr->addr_ctrl.init_tag_value;
4434        r_cnt = cache_hdr->read_ctrl.read_addr_cnt;
4435
4436        for (i = 0; i < loop_count; i++) {
4437                qla82xx_md_rw_32(ha, t_r_addr, t_value, 1);
4438                qla82xx_md_rw_32(ha, c_addr, c_value_w, 1);
4439                addr = r_addr;
4440                for (k = 0; k < r_cnt; k++) {
4441                        r_value = qla82xx_md_rw_32(ha, addr, 0, 0);
4442                        *data_ptr++ = cpu_to_le32(r_value);
4443                        addr += cache_hdr->read_ctrl.read_addr_stride;
4444                }
4445                t_value += cache_hdr->addr_ctrl.tag_value_stride;
4446        }
4447        *d_ptr = data_ptr;
4448}
4449
4450static void
4451qla82xx_minidump_process_queue(scsi_qla_host_t *vha,
4452        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
4453{
4454        struct qla_hw_data *ha = vha->hw;
4455        uint32_t s_addr, r_addr;
4456        uint32_t r_stride, r_value, r_cnt, qid = 0;
4457        uint32_t i, k, loop_cnt;
4458        struct qla82xx_md_entry_queue *q_hdr;
4459        uint32_t *data_ptr = *d_ptr;
4460
4461        q_hdr = (struct qla82xx_md_entry_queue *)entry_hdr;
4462        s_addr = q_hdr->select_addr;
4463        r_cnt = q_hdr->rd_strd.read_addr_cnt;
4464        r_stride = q_hdr->rd_strd.read_addr_stride;
4465        loop_cnt = q_hdr->op_count;
4466
4467        for (i = 0; i < loop_cnt; i++) {
4468                qla82xx_md_rw_32(ha, s_addr, qid, 1);
4469                r_addr = q_hdr->read_addr;
4470                for (k = 0; k < r_cnt; k++) {
4471                        r_value = qla82xx_md_rw_32(ha, r_addr, 0, 0);
4472                        *data_ptr++ = cpu_to_le32(r_value);
4473                        r_addr += r_stride;
4474                }
4475                qid += q_hdr->q_strd.queue_id_stride;
4476        }
4477        *d_ptr = data_ptr;
4478}
4479
4480static void
4481qla82xx_minidump_process_rdrom(scsi_qla_host_t *vha,
4482        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
4483{
4484        struct qla_hw_data *ha = vha->hw;
4485        uint32_t r_addr, r_value;
4486        uint32_t i, loop_cnt;
4487        struct qla82xx_md_entry_rdrom *rom_hdr;
4488        uint32_t *data_ptr = *d_ptr;
4489
4490        rom_hdr = (struct qla82xx_md_entry_rdrom *)entry_hdr;
4491        r_addr = rom_hdr->read_addr;
4492        loop_cnt = rom_hdr->read_data_size/sizeof(uint32_t);
4493
4494        for (i = 0; i < loop_cnt; i++) {
4495                qla82xx_md_rw_32(ha, MD_DIRECT_ROM_WINDOW,
4496                    (r_addr & 0xFFFF0000), 1);
4497                r_value = qla82xx_md_rw_32(ha,
4498                    MD_DIRECT_ROM_READ_BASE +
4499                    (r_addr & 0x0000FFFF), 0, 0);
4500                *data_ptr++ = cpu_to_le32(r_value);
4501                r_addr += sizeof(uint32_t);
4502        }
4503        *d_ptr = data_ptr;
4504}
4505
4506static int
4507qla82xx_minidump_process_rdmem(scsi_qla_host_t *vha,
4508        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
4509{
4510        struct qla_hw_data *ha = vha->hw;
4511        uint32_t r_addr, r_value, r_data;
4512        uint32_t i, j, loop_cnt;
4513        struct qla82xx_md_entry_rdmem *m_hdr;
4514        unsigned long flags;
4515        int rval = QLA_FUNCTION_FAILED;
4516        uint32_t *data_ptr = *d_ptr;
4517
4518        m_hdr = (struct qla82xx_md_entry_rdmem *)entry_hdr;
4519        r_addr = m_hdr->read_addr;
4520        loop_cnt = m_hdr->read_data_size/16;
4521
4522        if (r_addr & 0xf) {
4523                ql_log(ql_log_warn, vha, 0xb033,
4524                    "Read addr 0x%x not 16 bytes alligned\n", r_addr);
4525                return rval;
4526        }
4527
4528        if (m_hdr->read_data_size % 16) {
4529                ql_log(ql_log_warn, vha, 0xb034,
4530                    "Read data[0x%x] not multiple of 16 bytes\n",
4531                    m_hdr->read_data_size);
4532                return rval;
4533        }
4534
4535        ql_dbg(ql_dbg_p3p, vha, 0xb035,
4536            "[%s]: rdmem_addr: 0x%x, read_data_size: 0x%x, loop_cnt: 0x%x\n",
4537            __func__, r_addr, m_hdr->read_data_size, loop_cnt);
4538
4539        write_lock_irqsave(&ha->hw_lock, flags);
4540        for (i = 0; i < loop_cnt; i++) {
4541                qla82xx_md_rw_32(ha, MD_MIU_TEST_AGT_ADDR_LO, r_addr, 1);
4542                r_value = 0;
4543                qla82xx_md_rw_32(ha, MD_MIU_TEST_AGT_ADDR_HI, r_value, 1);
4544                r_value = MIU_TA_CTL_ENABLE;
4545                qla82xx_md_rw_32(ha, MD_MIU_TEST_AGT_CTRL, r_value, 1);
4546                r_value = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE;
4547                qla82xx_md_rw_32(ha, MD_MIU_TEST_AGT_CTRL, r_value, 1);
4548
4549                for (j = 0; j < MAX_CTL_CHECK; j++) {
4550                        r_value = qla82xx_md_rw_32(ha,
4551                            MD_MIU_TEST_AGT_CTRL, 0, 0);
4552                        if ((r_value & MIU_TA_CTL_BUSY) == 0)
4553                                break;
4554                }
4555
4556                if (j >= MAX_CTL_CHECK) {
4557                        printk_ratelimited(KERN_ERR
4558                            "failed to read through agent\n");
4559                        write_unlock_irqrestore(&ha->hw_lock, flags);
4560                        return rval;
4561                }
4562
4563                for (j = 0; j < 4; j++) {
4564                        r_data = qla82xx_md_rw_32(ha,
4565                            MD_MIU_TEST_AGT_RDDATA[j], 0, 0);
4566                        *data_ptr++ = cpu_to_le32(r_data);
4567                }
4568                r_addr += 16;
4569        }
4570        write_unlock_irqrestore(&ha->hw_lock, flags);
4571        *d_ptr = data_ptr;
4572        return QLA_SUCCESS;
4573}
4574
4575static int
4576qla82xx_validate_template_chksum(scsi_qla_host_t *vha)
4577{
4578        struct qla_hw_data *ha = vha->hw;
4579        uint64_t chksum = 0;
4580        uint32_t *d_ptr = (uint32_t *)ha->md_tmplt_hdr;
4581        int count = ha->md_template_size/sizeof(uint32_t);
4582
4583        while (count-- > 0)
4584                chksum += *d_ptr++;
4585        while (chksum >> 32)
4586                chksum = (chksum & 0xFFFFFFFF) + (chksum >> 32);
4587        return ~chksum;
4588}
4589
4590static void
4591qla82xx_mark_entry_skipped(scsi_qla_host_t *vha,
4592        qla82xx_md_entry_hdr_t *entry_hdr, int index)
4593{
4594        entry_hdr->d_ctrl.driver_flags |= QLA82XX_DBG_SKIPPED_FLAG;
4595        ql_dbg(ql_dbg_p3p, vha, 0xb036,
4596            "Skipping entry[%d]: "
4597            "ETYPE[0x%x]-ELEVEL[0x%x]\n",
4598            index, entry_hdr->entry_type,
4599            entry_hdr->d_ctrl.entry_capture_mask);
4600}
4601
4602int
4603qla82xx_md_collect(scsi_qla_host_t *vha)
4604{
4605        struct qla_hw_data *ha = vha->hw;
4606        int no_entry_hdr = 0;
4607        qla82xx_md_entry_hdr_t *entry_hdr;
4608        struct qla82xx_md_template_hdr *tmplt_hdr;
4609        uint32_t *data_ptr;
4610        uint32_t total_data_size = 0, f_capture_mask, data_collected = 0;
4611        int i = 0, rval = QLA_FUNCTION_FAILED;
4612
4613        tmplt_hdr = (struct qla82xx_md_template_hdr *)ha->md_tmplt_hdr;
4614        data_ptr = (uint32_t *)ha->md_dump;
4615
4616        if (ha->fw_dumped) {
4617                ql_log(ql_log_info, vha, 0xb037,
4618                    "Firmware dump available to retrive\n");
4619                goto md_failed;
4620        }
4621
4622        ha->fw_dumped = 0;
4623
4624        if (!ha->md_tmplt_hdr || !ha->md_dump) {
4625                ql_log(ql_log_warn, vha, 0xb038,
4626                    "Memory not allocated for minidump capture\n");
4627                goto md_failed;
4628        }
4629
4630        if (qla82xx_validate_template_chksum(vha)) {
4631                ql_log(ql_log_info, vha, 0xb039,
4632                    "Template checksum validation error\n");
4633                goto md_failed;
4634        }
4635
4636        no_entry_hdr = tmplt_hdr->num_of_entries;
4637        ql_dbg(ql_dbg_p3p, vha, 0xb03a,
4638            "No of entry headers in Template: 0x%x\n", no_entry_hdr);
4639
4640        ql_dbg(ql_dbg_p3p, vha, 0xb03b,
4641            "Capture Mask obtained: 0x%x\n", tmplt_hdr->capture_debug_level);
4642
4643        f_capture_mask = tmplt_hdr->capture_debug_level & 0xFF;
4644
4645        /* Validate whether required debug level is set */
4646        if ((f_capture_mask & 0x3) != 0x3) {
4647                ql_log(ql_log_warn, vha, 0xb03c,
4648                    "Minimum required capture mask[0x%x] level not set\n",
4649                    f_capture_mask);
4650                goto md_failed;
4651        }
4652        tmplt_hdr->driver_capture_mask = ql2xmdcapmask;
4653
4654        tmplt_hdr->driver_info[0] = vha->host_no;
4655        tmplt_hdr->driver_info[1] = (QLA_DRIVER_MAJOR_VER << 24) |
4656            (QLA_DRIVER_MINOR_VER << 16) | (QLA_DRIVER_PATCH_VER << 8) |
4657            QLA_DRIVER_BETA_VER;
4658
4659        total_data_size = ha->md_dump_size;
4660
4661        ql_dbg(ql_log_info, vha, 0xb03d,
4662            "Total minidump data_size 0x%x to be captured\n", total_data_size);
4663
4664        /* Check whether template obtained is valid */
4665        if (tmplt_hdr->entry_type != QLA82XX_TLHDR) {
4666                ql_log(ql_log_warn, vha, 0xb04e,
4667                    "Bad template header entry type: 0x%x obtained\n",
4668                    tmplt_hdr->entry_type);
4669                goto md_failed;
4670        }
4671
4672        entry_hdr = (qla82xx_md_entry_hdr_t *) \
4673            (((uint8_t *)ha->md_tmplt_hdr) + tmplt_hdr->first_entry_offset);
4674
4675        /* Walk through the entry headers */
4676        for (i = 0; i < no_entry_hdr; i++) {
4677
4678                if (data_collected > total_data_size) {
4679                        ql_log(ql_log_warn, vha, 0xb03e,
4680                            "More MiniDump data collected: [0x%x]\n",
4681                            data_collected);
4682                        goto md_failed;
4683                }
4684
4685                if (!(entry_hdr->d_ctrl.entry_capture_mask &
4686                    ql2xmdcapmask)) {
4687                        entry_hdr->d_ctrl.driver_flags |=
4688                            QLA82XX_DBG_SKIPPED_FLAG;
4689                        ql_dbg(ql_dbg_p3p, vha, 0xb03f,
4690                            "Skipping entry[%d]: "
4691                            "ETYPE[0x%x]-ELEVEL[0x%x]\n",
4692                            i, entry_hdr->entry_type,
4693                            entry_hdr->d_ctrl.entry_capture_mask);
4694                        goto skip_nxt_entry;
4695                }
4696
4697                ql_dbg(ql_dbg_p3p, vha, 0xb040,
4698                    "[%s]: data ptr[%d]: %p, entry_hdr: %p\n"
4699                    "entry_type: 0x%x, captrue_mask: 0x%x\n",
4700                    __func__, i, data_ptr, entry_hdr,
4701                    entry_hdr->entry_type,
4702                    entry_hdr->d_ctrl.entry_capture_mask);
4703
4704                ql_dbg(ql_dbg_p3p, vha, 0xb041,
4705                    "Data collected: [0x%x], Dump size left:[0x%x]\n",
4706                    data_collected, (ha->md_dump_size - data_collected));
4707
4708                /* Decode the entry type and take
4709                 * required action to capture debug data */
4710                switch (entry_hdr->entry_type) {
4711                case QLA82XX_RDEND:
4712                        qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4713                        break;
4714                case QLA82XX_CNTRL:
4715                        rval = qla82xx_minidump_process_control(vha,
4716                            entry_hdr, &data_ptr);
4717                        if (rval != QLA_SUCCESS) {
4718                                qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4719                                goto md_failed;
4720                        }
4721                        break;
4722                case QLA82XX_RDCRB:
4723                        qla82xx_minidump_process_rdcrb(vha,
4724                            entry_hdr, &data_ptr);
4725                        break;
4726                case QLA82XX_RDMEM:
4727                        rval = qla82xx_minidump_process_rdmem(vha,
4728                            entry_hdr, &data_ptr);
4729                        if (rval != QLA_SUCCESS) {
4730                                qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4731                                goto md_failed;
4732                        }
4733                        break;
4734                case QLA82XX_BOARD:
4735                case QLA82XX_RDROM:
4736                        qla82xx_minidump_process_rdrom(vha,
4737                            entry_hdr, &data_ptr);
4738                        break;
4739                case QLA82XX_L2DTG:
4740                case QLA82XX_L2ITG:
4741                case QLA82XX_L2DAT:
4742                case QLA82XX_L2INS:
4743                        rval = qla82xx_minidump_process_l2tag(vha,
4744                            entry_hdr, &data_ptr);
4745                        if (rval != QLA_SUCCESS) {
4746                                qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4747                                goto md_failed;
4748                        }
4749                        break;
4750                case QLA82XX_L1DAT:
4751                case QLA82XX_L1INS:
4752                        qla82xx_minidump_process_l1cache(vha,
4753                            entry_hdr, &data_ptr);
4754                        break;
4755                case QLA82XX_RDOCM:
4756                        qla82xx_minidump_process_rdocm(vha,
4757                            entry_hdr, &data_ptr);
4758                        break;
4759                case QLA82XX_RDMUX:
4760                        qla82xx_minidump_process_rdmux(vha,
4761                            entry_hdr, &data_ptr);
4762                        break;
4763                case QLA82XX_QUEUE:
4764                        qla82xx_minidump_process_queue(vha,
4765                            entry_hdr, &data_ptr);
4766                        break;
4767                case QLA82XX_RDNOP:
4768                default:
4769                        qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4770                        break;
4771                }
4772
4773                ql_dbg(ql_dbg_p3p, vha, 0xb042,
4774                    "[%s]: data ptr[%d]: %p\n", __func__, i, data_ptr);
4775
4776                data_collected = (uint8_t *)data_ptr -
4777                    (uint8_t *)ha->md_dump;
4778skip_nxt_entry:
4779                entry_hdr = (qla82xx_md_entry_hdr_t *) \
4780                    (((uint8_t *)entry_hdr) + entry_hdr->entry_size);
4781        }
4782
4783        if (data_collected != total_data_size) {
4784                ql_dbg(ql_log_warn, vha, 0xb043,
4785                    "MiniDump data mismatch: Data collected: [0x%x],"
4786                    "total_data_size:[0x%x]\n",
4787                    data_collected, total_data_size);
4788                goto md_failed;
4789        }
4790
4791        ql_log(ql_log_info, vha, 0xb044,
4792            "Firmware dump saved to temp buffer (%ld/%p %ld/%p).\n",
4793            vha->host_no, ha->md_tmplt_hdr, vha->host_no, ha->md_dump);
4794        ha->fw_dumped = 1;
4795        qla2x00_post_uevent_work(vha, QLA_UEVENT_CODE_FW_DUMP);
4796
4797md_failed:
4798        return rval;
4799}
4800
4801int
4802qla82xx_md_alloc(scsi_qla_host_t *vha)
4803{
4804        struct qla_hw_data *ha = vha->hw;
4805        int i, k;
4806        struct qla82xx_md_template_hdr *tmplt_hdr;
4807
4808        tmplt_hdr = (struct qla82xx_md_template_hdr *)ha->md_tmplt_hdr;
4809
4810        if (ql2xmdcapmask < 0x3 || ql2xmdcapmask > 0x7F) {
4811                ql2xmdcapmask = tmplt_hdr->capture_debug_level & 0xFF;
4812                ql_log(ql_log_info, vha, 0xb045,
4813                    "Forcing driver capture mask to firmware default capture mask: 0x%x.\n",
4814                    ql2xmdcapmask);
4815        }
4816
4817        for (i = 0x2, k = 1; (i & QLA82XX_DEFAULT_CAP_MASK); i <<= 1, k++) {
4818                if (i & ql2xmdcapmask)
4819                        ha->md_dump_size += tmplt_hdr->capture_size_array[k];
4820        }
4821
4822        if (ha->md_dump) {
4823                ql_log(ql_log_warn, vha, 0xb046,
4824                    "Firmware dump previously allocated.\n");
4825                return 1;
4826        }
4827
4828        ha->md_dump = vmalloc(ha->md_dump_size);
4829        if (ha->md_dump == NULL) {
4830                ql_log(ql_log_warn, vha, 0xb047,
4831                    "Unable to allocate memory for Minidump size "
4832                    "(0x%x).\n", ha->md_dump_size);
4833                return 1;
4834        }
4835        return 0;
4836}
4837
4838void
4839qla82xx_md_free(scsi_qla_host_t *vha)
4840{
4841        struct qla_hw_data *ha = vha->hw;
4842
4843        /* Release the template header allocated */
4844        if (ha->md_tmplt_hdr) {
4845                ql_log(ql_log_info, vha, 0xb048,
4846                    "Free MiniDump template: %p, size (%d KB)\n",
4847                    ha->md_tmplt_hdr, ha->md_template_size / 1024);
4848                dma_free_coherent(&ha->pdev->dev, ha->md_template_size,
4849                    ha->md_tmplt_hdr, ha->md_tmplt_hdr_dma);
4850                ha->md_tmplt_hdr = 0;
4851        }
4852
4853        /* Release the template data buffer allocated */
4854        if (ha->md_dump) {
4855                ql_log(ql_log_info, vha, 0xb049,
4856                    "Free MiniDump memory: %p, size (%d KB)\n",
4857                    ha->md_dump, ha->md_dump_size / 1024);
4858                vfree(ha->md_dump);
4859                ha->md_dump_size = 0;
4860                ha->md_dump = 0;
4861        }
4862}
4863
4864void
4865qla82xx_md_prep(scsi_qla_host_t *vha)
4866{
4867        struct qla_hw_data *ha = vha->hw;
4868        int rval;
4869
4870        /* Get Minidump template size */
4871        rval = qla82xx_md_get_template_size(vha);
4872        if (rval == QLA_SUCCESS) {
4873                ql_log(ql_log_info, vha, 0xb04a,
4874                    "MiniDump Template size obtained (%d KB)\n",
4875                    ha->md_template_size / 1024);
4876
4877                /* Get Minidump template */
4878                rval = qla82xx_md_get_template(vha);
4879                if (rval == QLA_SUCCESS) {
4880                        ql_dbg(ql_dbg_p3p, vha, 0xb04b,
4881                            "MiniDump Template obtained\n");
4882
4883                        /* Allocate memory for minidump */
4884                        rval = qla82xx_md_alloc(vha);
4885                        if (rval == QLA_SUCCESS)
4886                                ql_log(ql_log_info, vha, 0xb04c,
4887                                    "MiniDump memory allocated (%d KB)\n",
4888                                    ha->md_dump_size / 1024);
4889                        else {
4890                                ql_log(ql_log_info, vha, 0xb04d,
4891                                    "Free MiniDump template: %p, size: (%d KB)\n",
4892                                    ha->md_tmplt_hdr,
4893                                    ha->md_template_size / 1024);
4894                                dma_free_coherent(&ha->pdev->dev,
4895                                    ha->md_template_size,
4896                                    ha->md_tmplt_hdr, ha->md_tmplt_hdr_dma);
4897                                ha->md_tmplt_hdr = 0;
4898                        }
4899
4900                }
4901        }
4902}
4903
4904int
4905qla82xx_beacon_on(struct scsi_qla_host *vha)
4906{
4907
4908        int rval;
4909        struct qla_hw_data *ha = vha->hw;
4910        qla82xx_idc_lock(ha);
4911        rval = qla82xx_mbx_beacon_ctl(vha, 1);
4912
4913        if (rval) {
4914                ql_log(ql_log_warn, vha, 0xb050,
4915                    "mbx set led config failed in %s\n", __func__);
4916                goto exit;
4917        }
4918        ha->beacon_blink_led = 1;
4919exit:
4920        qla82xx_idc_unlock(ha);
4921        return rval;
4922}
4923
4924int
4925qla82xx_beacon_off(struct scsi_qla_host *vha)
4926{
4927
4928        int rval;
4929        struct qla_hw_data *ha = vha->hw;
4930        qla82xx_idc_lock(ha);
4931        rval = qla82xx_mbx_beacon_ctl(vha, 0);
4932
4933        if (rval) {
4934                ql_log(ql_log_warn, vha, 0xb051,
4935                    "mbx set led config failed in %s\n", __func__);
4936                goto exit;
4937        }
4938        ha->beacon_blink_led = 0;
4939exit:
4940        qla82xx_idc_unlock(ha);
4941        return rval;
4942}
4943
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