linux/drivers/scsi/qla2xxx/qla_nx.c
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   1/*
   2 * QLogic Fibre Channel HBA Driver
   3 * Copyright (c)  2003-2014 QLogic Corporation
   4 *
   5 * See LICENSE.qla2xxx for copyright and licensing details.
   6 */
   7#include "qla_def.h"
   8#include <linux/delay.h>
   9#include <linux/io-64-nonatomic-lo-hi.h>
  10#include <linux/pci.h>
  11#include <linux/ratelimit.h>
  12#include <linux/vmalloc.h>
  13#include <scsi/scsi_tcq.h>
  14
  15#define MASK(n)                 ((1ULL<<(n))-1)
  16#define MN_WIN(addr) (((addr & 0x1fc0000) >> 1) | \
  17        ((addr >> 25) & 0x3ff))
  18#define OCM_WIN(addr) (((addr & 0x1ff0000) >> 1) | \
  19        ((addr >> 25) & 0x3ff))
  20#define MS_WIN(addr) (addr & 0x0ffc0000)
  21#define QLA82XX_PCI_MN_2M   (0)
  22#define QLA82XX_PCI_MS_2M   (0x80000)
  23#define QLA82XX_PCI_OCM0_2M (0xc0000)
  24#define VALID_OCM_ADDR(addr) (((addr) & 0x3f800) != 0x3f800)
  25#define GET_MEM_OFFS_2M(addr) (addr & MASK(18))
  26#define BLOCK_PROTECT_BITS 0x0F
  27
  28/* CRB window related */
  29#define CRB_BLK(off)    ((off >> 20) & 0x3f)
  30#define CRB_SUBBLK(off) ((off >> 16) & 0xf)
  31#define CRB_WINDOW_2M   (0x130060)
  32#define QLA82XX_PCI_CAMQM_2M_END        (0x04800800UL)
  33#define CRB_HI(off)     ((qla82xx_crb_hub_agt[CRB_BLK(off)] << 20) | \
  34                        ((off) & 0xf0000))
  35#define QLA82XX_PCI_CAMQM_2M_BASE       (0x000ff800UL)
  36#define CRB_INDIRECT_2M (0x1e0000UL)
  37
  38#define MAX_CRB_XFORM 60
  39static unsigned long crb_addr_xform[MAX_CRB_XFORM];
  40static int qla82xx_crb_table_initialized;
  41
  42#define qla82xx_crb_addr_transform(name) \
  43        (crb_addr_xform[QLA82XX_HW_PX_MAP_CRB_##name] = \
  44        QLA82XX_HW_CRB_HUB_AGT_ADR_##name << 20)
  45
  46const int MD_MIU_TEST_AGT_RDDATA[] = {
  47        0x410000A8, 0x410000AC,
  48        0x410000B8, 0x410000BC
  49};
  50
  51static void qla82xx_crb_addr_transform_setup(void)
  52{
  53        qla82xx_crb_addr_transform(XDMA);
  54        qla82xx_crb_addr_transform(TIMR);
  55        qla82xx_crb_addr_transform(SRE);
  56        qla82xx_crb_addr_transform(SQN3);
  57        qla82xx_crb_addr_transform(SQN2);
  58        qla82xx_crb_addr_transform(SQN1);
  59        qla82xx_crb_addr_transform(SQN0);
  60        qla82xx_crb_addr_transform(SQS3);
  61        qla82xx_crb_addr_transform(SQS2);
  62        qla82xx_crb_addr_transform(SQS1);
  63        qla82xx_crb_addr_transform(SQS0);
  64        qla82xx_crb_addr_transform(RPMX7);
  65        qla82xx_crb_addr_transform(RPMX6);
  66        qla82xx_crb_addr_transform(RPMX5);
  67        qla82xx_crb_addr_transform(RPMX4);
  68        qla82xx_crb_addr_transform(RPMX3);
  69        qla82xx_crb_addr_transform(RPMX2);
  70        qla82xx_crb_addr_transform(RPMX1);
  71        qla82xx_crb_addr_transform(RPMX0);
  72        qla82xx_crb_addr_transform(ROMUSB);
  73        qla82xx_crb_addr_transform(SN);
  74        qla82xx_crb_addr_transform(QMN);
  75        qla82xx_crb_addr_transform(QMS);
  76        qla82xx_crb_addr_transform(PGNI);
  77        qla82xx_crb_addr_transform(PGND);
  78        qla82xx_crb_addr_transform(PGN3);
  79        qla82xx_crb_addr_transform(PGN2);
  80        qla82xx_crb_addr_transform(PGN1);
  81        qla82xx_crb_addr_transform(PGN0);
  82        qla82xx_crb_addr_transform(PGSI);
  83        qla82xx_crb_addr_transform(PGSD);
  84        qla82xx_crb_addr_transform(PGS3);
  85        qla82xx_crb_addr_transform(PGS2);
  86        qla82xx_crb_addr_transform(PGS1);
  87        qla82xx_crb_addr_transform(PGS0);
  88        qla82xx_crb_addr_transform(PS);
  89        qla82xx_crb_addr_transform(PH);
  90        qla82xx_crb_addr_transform(NIU);
  91        qla82xx_crb_addr_transform(I2Q);
  92        qla82xx_crb_addr_transform(EG);
  93        qla82xx_crb_addr_transform(MN);
  94        qla82xx_crb_addr_transform(MS);
  95        qla82xx_crb_addr_transform(CAS2);
  96        qla82xx_crb_addr_transform(CAS1);
  97        qla82xx_crb_addr_transform(CAS0);
  98        qla82xx_crb_addr_transform(CAM);
  99        qla82xx_crb_addr_transform(C2C1);
 100        qla82xx_crb_addr_transform(C2C0);
 101        qla82xx_crb_addr_transform(SMB);
 102        qla82xx_crb_addr_transform(OCM0);
 103        /*
 104         * Used only in P3 just define it for P2 also.
 105         */
 106        qla82xx_crb_addr_transform(I2C0);
 107
 108        qla82xx_crb_table_initialized = 1;
 109}
 110
 111static struct crb_128M_2M_block_map crb_128M_2M_map[64] = {
 112        {{{0, 0,         0,         0} } },
 113        {{{1, 0x0100000, 0x0102000, 0x120000},
 114        {1, 0x0110000, 0x0120000, 0x130000},
 115        {1, 0x0120000, 0x0122000, 0x124000},
 116        {1, 0x0130000, 0x0132000, 0x126000},
 117        {1, 0x0140000, 0x0142000, 0x128000},
 118        {1, 0x0150000, 0x0152000, 0x12a000},
 119        {1, 0x0160000, 0x0170000, 0x110000},
 120        {1, 0x0170000, 0x0172000, 0x12e000},
 121        {0, 0x0000000, 0x0000000, 0x000000},
 122        {0, 0x0000000, 0x0000000, 0x000000},
 123        {0, 0x0000000, 0x0000000, 0x000000},
 124        {0, 0x0000000, 0x0000000, 0x000000},
 125        {0, 0x0000000, 0x0000000, 0x000000},
 126        {0, 0x0000000, 0x0000000, 0x000000},
 127        {1, 0x01e0000, 0x01e0800, 0x122000},
 128        {0, 0x0000000, 0x0000000, 0x000000} } } ,
 129        {{{1, 0x0200000, 0x0210000, 0x180000} } },
 130        {{{0, 0,         0,         0} } },
 131        {{{1, 0x0400000, 0x0401000, 0x169000} } },
 132        {{{1, 0x0500000, 0x0510000, 0x140000} } },
 133        {{{1, 0x0600000, 0x0610000, 0x1c0000} } },
 134        {{{1, 0x0700000, 0x0704000, 0x1b8000} } },
 135        {{{1, 0x0800000, 0x0802000, 0x170000},
 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        {0, 0x0000000, 0x0000000, 0x000000},
 145        {0, 0x0000000, 0x0000000, 0x000000},
 146        {0, 0x0000000, 0x0000000, 0x000000},
 147        {0, 0x0000000, 0x0000000, 0x000000},
 148        {0, 0x0000000, 0x0000000, 0x000000},
 149        {0, 0x0000000, 0x0000000, 0x000000},
 150        {1, 0x08f0000, 0x08f2000, 0x172000} } },
 151        {{{1, 0x0900000, 0x0902000, 0x174000},
 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        {0, 0x0000000, 0x0000000, 0x000000},
 161        {0, 0x0000000, 0x0000000, 0x000000},
 162        {0, 0x0000000, 0x0000000, 0x000000},
 163        {0, 0x0000000, 0x0000000, 0x000000},
 164        {0, 0x0000000, 0x0000000, 0x000000},
 165        {0, 0x0000000, 0x0000000, 0x000000},
 166        {1, 0x09f0000, 0x09f2000, 0x176000} } },
 167        {{{0, 0x0a00000, 0x0a02000, 0x178000},
 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        {0, 0x0000000, 0x0000000, 0x000000},
 177        {0, 0x0000000, 0x0000000, 0x000000},
 178        {0, 0x0000000, 0x0000000, 0x000000},
 179        {0, 0x0000000, 0x0000000, 0x000000},
 180        {0, 0x0000000, 0x0000000, 0x000000},
 181        {0, 0x0000000, 0x0000000, 0x000000},
 182        {1, 0x0af0000, 0x0af2000, 0x17a000} } },
 183        {{{0, 0x0b00000, 0x0b02000, 0x17c000},
 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        {0, 0x0000000, 0x0000000, 0x000000},
 193        {0, 0x0000000, 0x0000000, 0x000000},
 194        {0, 0x0000000, 0x0000000, 0x000000},
 195        {0, 0x0000000, 0x0000000, 0x000000},
 196        {0, 0x0000000, 0x0000000, 0x000000},
 197        {0, 0x0000000, 0x0000000, 0x000000},
 198        {1, 0x0bf0000, 0x0bf2000, 0x17e000} } },
 199        {{{1, 0x0c00000, 0x0c04000, 0x1d4000} } },
 200        {{{1, 0x0d00000, 0x0d04000, 0x1a4000} } },
 201        {{{1, 0x0e00000, 0x0e04000, 0x1a0000} } },
 202        {{{1, 0x0f00000, 0x0f01000, 0x164000} } },
 203        {{{0, 0x1000000, 0x1004000, 0x1a8000} } },
 204        {{{1, 0x1100000, 0x1101000, 0x160000} } },
 205        {{{1, 0x1200000, 0x1201000, 0x161000} } },
 206        {{{1, 0x1300000, 0x1301000, 0x162000} } },
 207        {{{1, 0x1400000, 0x1401000, 0x163000} } },
 208        {{{1, 0x1500000, 0x1501000, 0x165000} } },
 209        {{{1, 0x1600000, 0x1601000, 0x166000} } },
 210        {{{0, 0,         0,         0} } },
 211        {{{0, 0,         0,         0} } },
 212        {{{0, 0,         0,         0} } },
 213        {{{0, 0,         0,         0} } },
 214        {{{0, 0,         0,         0} } },
 215        {{{0, 0,         0,         0} } },
 216        {{{1, 0x1d00000, 0x1d10000, 0x190000} } },
 217        {{{1, 0x1e00000, 0x1e01000, 0x16a000} } },
 218        {{{1, 0x1f00000, 0x1f10000, 0x150000} } },
 219        {{{0} } },
 220        {{{1, 0x2100000, 0x2102000, 0x120000},
 221        {1, 0x2110000, 0x2120000, 0x130000},
 222        {1, 0x2120000, 0x2122000, 0x124000},
 223        {1, 0x2130000, 0x2132000, 0x126000},
 224        {1, 0x2140000, 0x2142000, 0x128000},
 225        {1, 0x2150000, 0x2152000, 0x12a000},
 226        {1, 0x2160000, 0x2170000, 0x110000},
 227        {1, 0x2170000, 0x2172000, 0x12e000},
 228        {0, 0x0000000, 0x0000000, 0x000000},
 229        {0, 0x0000000, 0x0000000, 0x000000},
 230        {0, 0x0000000, 0x0000000, 0x000000},
 231        {0, 0x0000000, 0x0000000, 0x000000},
 232        {0, 0x0000000, 0x0000000, 0x000000},
 233        {0, 0x0000000, 0x0000000, 0x000000},
 234        {0, 0x0000000, 0x0000000, 0x000000},
 235        {0, 0x0000000, 0x0000000, 0x000000} } },
 236        {{{1, 0x2200000, 0x2204000, 0x1b0000} } },
 237        {{{0} } },
 238        {{{0} } },
 239        {{{0} } },
 240        {{{0} } },
 241        {{{0} } },
 242        {{{1, 0x2800000, 0x2804000, 0x1a4000} } },
 243        {{{1, 0x2900000, 0x2901000, 0x16b000} } },
 244        {{{1, 0x2a00000, 0x2a00400, 0x1ac400} } },
 245        {{{1, 0x2b00000, 0x2b00400, 0x1ac800} } },
 246        {{{1, 0x2c00000, 0x2c00400, 0x1acc00} } },
 247        {{{1, 0x2d00000, 0x2d00400, 0x1ad000} } },
 248        {{{1, 0x2e00000, 0x2e00400, 0x1ad400} } },
 249        {{{1, 0x2f00000, 0x2f00400, 0x1ad800} } },
 250        {{{1, 0x3000000, 0x3000400, 0x1adc00} } },
 251        {{{0, 0x3100000, 0x3104000, 0x1a8000} } },
 252        {{{1, 0x3200000, 0x3204000, 0x1d4000} } },
 253        {{{1, 0x3300000, 0x3304000, 0x1a0000} } },
 254        {{{0} } },
 255        {{{1, 0x3500000, 0x3500400, 0x1ac000} } },
 256        {{{1, 0x3600000, 0x3600400, 0x1ae000} } },
 257        {{{1, 0x3700000, 0x3700400, 0x1ae400} } },
 258        {{{1, 0x3800000, 0x3804000, 0x1d0000} } },
 259        {{{1, 0x3900000, 0x3904000, 0x1b4000} } },
 260        {{{1, 0x3a00000, 0x3a04000, 0x1d8000} } },
 261        {{{0} } },
 262        {{{0} } },
 263        {{{1, 0x3d00000, 0x3d04000, 0x1dc000} } },
 264        {{{1, 0x3e00000, 0x3e01000, 0x167000} } },
 265        {{{1, 0x3f00000, 0x3f01000, 0x168000} } }
 266};
 267
 268/*
 269 * top 12 bits of crb internal address (hub, agent)
 270 */
 271static unsigned qla82xx_crb_hub_agt[64] = {
 272        0,
 273        QLA82XX_HW_CRB_HUB_AGT_ADR_PS,
 274        QLA82XX_HW_CRB_HUB_AGT_ADR_MN,
 275        QLA82XX_HW_CRB_HUB_AGT_ADR_MS,
 276        0,
 277        QLA82XX_HW_CRB_HUB_AGT_ADR_SRE,
 278        QLA82XX_HW_CRB_HUB_AGT_ADR_NIU,
 279        QLA82XX_HW_CRB_HUB_AGT_ADR_QMN,
 280        QLA82XX_HW_CRB_HUB_AGT_ADR_SQN0,
 281        QLA82XX_HW_CRB_HUB_AGT_ADR_SQN1,
 282        QLA82XX_HW_CRB_HUB_AGT_ADR_SQN2,
 283        QLA82XX_HW_CRB_HUB_AGT_ADR_SQN3,
 284        QLA82XX_HW_CRB_HUB_AGT_ADR_I2Q,
 285        QLA82XX_HW_CRB_HUB_AGT_ADR_TIMR,
 286        QLA82XX_HW_CRB_HUB_AGT_ADR_ROMUSB,
 287        QLA82XX_HW_CRB_HUB_AGT_ADR_PGN4,
 288        QLA82XX_HW_CRB_HUB_AGT_ADR_XDMA,
 289        QLA82XX_HW_CRB_HUB_AGT_ADR_PGN0,
 290        QLA82XX_HW_CRB_HUB_AGT_ADR_PGN1,
 291        QLA82XX_HW_CRB_HUB_AGT_ADR_PGN2,
 292        QLA82XX_HW_CRB_HUB_AGT_ADR_PGN3,
 293        QLA82XX_HW_CRB_HUB_AGT_ADR_PGND,
 294        QLA82XX_HW_CRB_HUB_AGT_ADR_PGNI,
 295        QLA82XX_HW_CRB_HUB_AGT_ADR_PGS0,
 296        QLA82XX_HW_CRB_HUB_AGT_ADR_PGS1,
 297        QLA82XX_HW_CRB_HUB_AGT_ADR_PGS2,
 298        QLA82XX_HW_CRB_HUB_AGT_ADR_PGS3,
 299        0,
 300        QLA82XX_HW_CRB_HUB_AGT_ADR_PGSI,
 301        QLA82XX_HW_CRB_HUB_AGT_ADR_SN,
 302        0,
 303        QLA82XX_HW_CRB_HUB_AGT_ADR_EG,
 304        0,
 305        QLA82XX_HW_CRB_HUB_AGT_ADR_PS,
 306        QLA82XX_HW_CRB_HUB_AGT_ADR_CAM,
 307        0,
 308        0,
 309        0,
 310        0,
 311        0,
 312        QLA82XX_HW_CRB_HUB_AGT_ADR_TIMR,
 313        0,
 314        QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX1,
 315        QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX2,
 316        QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX3,
 317        QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX4,
 318        QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX5,
 319        QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX6,
 320        QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX7,
 321        QLA82XX_HW_CRB_HUB_AGT_ADR_XDMA,
 322        QLA82XX_HW_CRB_HUB_AGT_ADR_I2Q,
 323        QLA82XX_HW_CRB_HUB_AGT_ADR_ROMUSB,
 324        0,
 325        QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX0,
 326        QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX8,
 327        QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX9,
 328        QLA82XX_HW_CRB_HUB_AGT_ADR_OCM0,
 329        0,
 330        QLA82XX_HW_CRB_HUB_AGT_ADR_SMB,
 331        QLA82XX_HW_CRB_HUB_AGT_ADR_I2C0,
 332        QLA82XX_HW_CRB_HUB_AGT_ADR_I2C1,
 333        0,
 334        QLA82XX_HW_CRB_HUB_AGT_ADR_PGNC,
 335        0,
 336};
 337
 338/* Device states */
 339static char *q_dev_state[] = {
 340         "Unknown",
 341        "Cold",
 342        "Initializing",
 343        "Ready",
 344        "Need Reset",
 345        "Need Quiescent",
 346        "Failed",
 347        "Quiescent",
 348};
 349
 350char *qdev_state(uint32_t dev_state)
 351{
 352        return q_dev_state[dev_state];
 353}
 354
 355/*
 356 * In: 'off_in' is offset from CRB space in 128M pci map
 357 * Out: 'off_out' is 2M pci map addr
 358 * side effect: lock crb window
 359 */
 360static void
 361qla82xx_pci_set_crbwindow_2M(struct qla_hw_data *ha, ulong off_in,
 362                             void __iomem **off_out)
 363{
 364        u32 win_read;
 365        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 366
 367        ha->crb_win = CRB_HI(off_in);
 368        writel(ha->crb_win, CRB_WINDOW_2M + ha->nx_pcibase);
 369
 370        /* Read back value to make sure write has gone through before trying
 371         * to use it.
 372         */
 373        win_read = RD_REG_DWORD(CRB_WINDOW_2M + ha->nx_pcibase);
 374        if (win_read != ha->crb_win) {
 375                ql_dbg(ql_dbg_p3p, vha, 0xb000,
 376                    "%s: Written crbwin (0x%x) "
 377                    "!= Read crbwin (0x%x), off=0x%lx.\n",
 378                    __func__, ha->crb_win, win_read, off_in);
 379        }
 380        *off_out = (off_in & MASK(16)) + CRB_INDIRECT_2M + ha->nx_pcibase;
 381}
 382
 383static inline unsigned long
 384qla82xx_pci_set_crbwindow(struct qla_hw_data *ha, u64 off)
 385{
 386        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 387        /* See if we are currently pointing to the region we want to use next */
 388        if ((off >= QLA82XX_CRB_PCIX_HOST) && (off < QLA82XX_CRB_DDR_NET)) {
 389                /* No need to change window. PCIX and PCIEregs are in both
 390                 * regs are in both windows.
 391                 */
 392                return off;
 393        }
 394
 395        if ((off >= QLA82XX_CRB_PCIX_HOST) && (off < QLA82XX_CRB_PCIX_HOST2)) {
 396                /* We are in first CRB window */
 397                if (ha->curr_window != 0)
 398                        WARN_ON(1);
 399                return off;
 400        }
 401
 402        if ((off > QLA82XX_CRB_PCIX_HOST2) && (off < QLA82XX_CRB_MAX)) {
 403                /* We are in second CRB window */
 404                off = off - QLA82XX_CRB_PCIX_HOST2 + QLA82XX_CRB_PCIX_HOST;
 405
 406                if (ha->curr_window != 1)
 407                        return off;
 408
 409                /* We are in the QM or direct access
 410                 * register region - do nothing
 411                 */
 412                if ((off >= QLA82XX_PCI_DIRECT_CRB) &&
 413                        (off < QLA82XX_PCI_CAMQM_MAX))
 414                        return off;
 415        }
 416        /* strange address given */
 417        ql_dbg(ql_dbg_p3p, vha, 0xb001,
 418            "%s: Warning: unm_nic_pci_set_crbwindow "
 419            "called with an unknown address(%llx).\n",
 420            QLA2XXX_DRIVER_NAME, off);
 421        return off;
 422}
 423
 424static int
 425qla82xx_pci_get_crb_addr_2M(struct qla_hw_data *ha, ulong off_in,
 426                            void __iomem **off_out)
 427{
 428        struct crb_128M_2M_sub_block_map *m;
 429
 430        if (off_in >= QLA82XX_CRB_MAX)
 431                return -1;
 432
 433        if (off_in >= QLA82XX_PCI_CAMQM && off_in < QLA82XX_PCI_CAMQM_2M_END) {
 434                *off_out = (off_in - QLA82XX_PCI_CAMQM) +
 435                    QLA82XX_PCI_CAMQM_2M_BASE + ha->nx_pcibase;
 436                return 0;
 437        }
 438
 439        if (off_in < QLA82XX_PCI_CRBSPACE)
 440                return -1;
 441
 442        off_in -= QLA82XX_PCI_CRBSPACE;
 443
 444        /* Try direct map */
 445        m = &crb_128M_2M_map[CRB_BLK(off_in)].sub_block[CRB_SUBBLK(off_in)];
 446
 447        if (m->valid && (m->start_128M <= off_in) && (m->end_128M > off_in)) {
 448                *off_out = off_in + m->start_2M - m->start_128M + ha->nx_pcibase;
 449                return 0;
 450        }
 451        /* Not in direct map, use crb window */
 452        *off_out = (void __iomem *)off_in;
 453        return 1;
 454}
 455
 456#define CRB_WIN_LOCK_TIMEOUT 100000000
 457static int qla82xx_crb_win_lock(struct qla_hw_data *ha)
 458{
 459        int done = 0, timeout = 0;
 460
 461        while (!done) {
 462                /* acquire semaphore3 from PCI HW block */
 463                done = qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_LOCK));
 464                if (done == 1)
 465                        break;
 466                if (timeout >= CRB_WIN_LOCK_TIMEOUT)
 467                        return -1;
 468                timeout++;
 469        }
 470        qla82xx_wr_32(ha, QLA82XX_CRB_WIN_LOCK_ID, ha->portnum);
 471        return 0;
 472}
 473
 474int
 475qla82xx_wr_32(struct qla_hw_data *ha, ulong off_in, u32 data)
 476{
 477        void __iomem *off;
 478        unsigned long flags = 0;
 479        int rv;
 480
 481        rv = qla82xx_pci_get_crb_addr_2M(ha, off_in, &off);
 482
 483        BUG_ON(rv == -1);
 484
 485        if (rv == 1) {
 486#ifndef __CHECKER__
 487                write_lock_irqsave(&ha->hw_lock, flags);
 488#endif
 489                qla82xx_crb_win_lock(ha);
 490                qla82xx_pci_set_crbwindow_2M(ha, off_in, &off);
 491        }
 492
 493        writel(data, (void __iomem *)off);
 494
 495        if (rv == 1) {
 496                qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_UNLOCK));
 497#ifndef __CHECKER__
 498                write_unlock_irqrestore(&ha->hw_lock, flags);
 499#endif
 500        }
 501        return 0;
 502}
 503
 504int
 505qla82xx_rd_32(struct qla_hw_data *ha, ulong off_in)
 506{
 507        void __iomem *off;
 508        unsigned long flags = 0;
 509        int rv;
 510        u32 data;
 511
 512        rv = qla82xx_pci_get_crb_addr_2M(ha, off_in, &off);
 513
 514        BUG_ON(rv == -1);
 515
 516        if (rv == 1) {
 517#ifndef __CHECKER__
 518                write_lock_irqsave(&ha->hw_lock, flags);
 519#endif
 520                qla82xx_crb_win_lock(ha);
 521                qla82xx_pci_set_crbwindow_2M(ha, off_in, &off);
 522        }
 523        data = RD_REG_DWORD(off);
 524
 525        if (rv == 1) {
 526                qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_UNLOCK));
 527#ifndef __CHECKER__
 528                write_unlock_irqrestore(&ha->hw_lock, flags);
 529#endif
 530        }
 531        return data;
 532}
 533
 534#define IDC_LOCK_TIMEOUT 100000000
 535int qla82xx_idc_lock(struct qla_hw_data *ha)
 536{
 537        int i;
 538        int done = 0, timeout = 0;
 539
 540        while (!done) {
 541                /* acquire semaphore5 from PCI HW block */
 542                done = qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM5_LOCK));
 543                if (done == 1)
 544                        break;
 545                if (timeout >= IDC_LOCK_TIMEOUT)
 546                        return -1;
 547
 548                timeout++;
 549
 550                /* Yield CPU */
 551                if (!in_interrupt())
 552                        schedule();
 553                else {
 554                        for (i = 0; i < 20; i++)
 555                                cpu_relax();
 556                }
 557        }
 558
 559        return 0;
 560}
 561
 562void qla82xx_idc_unlock(struct qla_hw_data *ha)
 563{
 564        qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM5_UNLOCK));
 565}
 566
 567/*
 568 * check memory access boundary.
 569 * used by test agent. support ddr access only for now
 570 */
 571static unsigned long
 572qla82xx_pci_mem_bound_check(struct qla_hw_data *ha,
 573        unsigned long long addr, int size)
 574{
 575        if (!addr_in_range(addr, QLA82XX_ADDR_DDR_NET,
 576                QLA82XX_ADDR_DDR_NET_MAX) ||
 577                !addr_in_range(addr + size - 1, QLA82XX_ADDR_DDR_NET,
 578                QLA82XX_ADDR_DDR_NET_MAX) ||
 579                ((size != 1) && (size != 2) && (size != 4) && (size != 8)))
 580                        return 0;
 581        else
 582                return 1;
 583}
 584
 585static int qla82xx_pci_set_window_warning_count;
 586
 587static unsigned long
 588qla82xx_pci_set_window(struct qla_hw_data *ha, unsigned long long addr)
 589{
 590        int window;
 591        u32 win_read;
 592        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 593
 594        if (addr_in_range(addr, QLA82XX_ADDR_DDR_NET,
 595                QLA82XX_ADDR_DDR_NET_MAX)) {
 596                /* DDR network side */
 597                window = MN_WIN(addr);
 598                ha->ddr_mn_window = window;
 599                qla82xx_wr_32(ha,
 600                        ha->mn_win_crb | QLA82XX_PCI_CRBSPACE, window);
 601                win_read = qla82xx_rd_32(ha,
 602                        ha->mn_win_crb | QLA82XX_PCI_CRBSPACE);
 603                if ((win_read << 17) != window) {
 604                        ql_dbg(ql_dbg_p3p, vha, 0xb003,
 605                            "%s: Written MNwin (0x%x) != Read MNwin (0x%x).\n",
 606                            __func__, window, win_read);
 607                }
 608                addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_DDR_NET;
 609        } else if (addr_in_range(addr, QLA82XX_ADDR_OCM0,
 610                QLA82XX_ADDR_OCM0_MAX)) {
 611                unsigned int temp1;
 612
 613                if ((addr & 0x00ff800) == 0xff800) {
 614                        ql_log(ql_log_warn, vha, 0xb004,
 615                            "%s: QM access not handled.\n", __func__);
 616                        addr = -1UL;
 617                }
 618                window = OCM_WIN(addr);
 619                ha->ddr_mn_window = window;
 620                qla82xx_wr_32(ha,
 621                        ha->mn_win_crb | QLA82XX_PCI_CRBSPACE, window);
 622                win_read = qla82xx_rd_32(ha,
 623                        ha->mn_win_crb | QLA82XX_PCI_CRBSPACE);
 624                temp1 = ((window & 0x1FF) << 7) |
 625                    ((window & 0x0FFFE0000) >> 17);
 626                if (win_read != temp1) {
 627                        ql_log(ql_log_warn, vha, 0xb005,
 628                            "%s: Written OCMwin (0x%x) != Read OCMwin (0x%x).\n",
 629                            __func__, temp1, win_read);
 630                }
 631                addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_OCM0_2M;
 632
 633        } else if (addr_in_range(addr, QLA82XX_ADDR_QDR_NET,
 634                QLA82XX_P3_ADDR_QDR_NET_MAX)) {
 635                /* QDR network side */
 636                window = MS_WIN(addr);
 637                ha->qdr_sn_window = window;
 638                qla82xx_wr_32(ha,
 639                        ha->ms_win_crb | QLA82XX_PCI_CRBSPACE, window);
 640                win_read = qla82xx_rd_32(ha,
 641                        ha->ms_win_crb | QLA82XX_PCI_CRBSPACE);
 642                if (win_read != window) {
 643                        ql_log(ql_log_warn, vha, 0xb006,
 644                            "%s: Written MSwin (0x%x) != Read MSwin (0x%x).\n",
 645                            __func__, window, win_read);
 646                }
 647                addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_QDR_NET;
 648        } else {
 649                /*
 650                 * peg gdb frequently accesses memory that doesn't exist,
 651                 * this limits the chit chat so debugging isn't slowed down.
 652                 */
 653                if ((qla82xx_pci_set_window_warning_count++ < 8) ||
 654                    (qla82xx_pci_set_window_warning_count%64 == 0)) {
 655                        ql_log(ql_log_warn, vha, 0xb007,
 656                            "%s: Warning:%s Unknown address range!.\n",
 657                            __func__, QLA2XXX_DRIVER_NAME);
 658                }
 659                addr = -1UL;
 660        }
 661        return addr;
 662}
 663
 664/* check if address is in the same windows as the previous access */
 665static int qla82xx_pci_is_same_window(struct qla_hw_data *ha,
 666        unsigned long long addr)
 667{
 668        int                     window;
 669        unsigned long long      qdr_max;
 670
 671        qdr_max = QLA82XX_P3_ADDR_QDR_NET_MAX;
 672
 673        /* DDR network side */
 674        if (addr_in_range(addr, QLA82XX_ADDR_DDR_NET,
 675                QLA82XX_ADDR_DDR_NET_MAX))
 676                BUG();
 677        else if (addr_in_range(addr, QLA82XX_ADDR_OCM0,
 678                QLA82XX_ADDR_OCM0_MAX))
 679                return 1;
 680        else if (addr_in_range(addr, QLA82XX_ADDR_OCM1,
 681                QLA82XX_ADDR_OCM1_MAX))
 682                return 1;
 683        else if (addr_in_range(addr, QLA82XX_ADDR_QDR_NET, qdr_max)) {
 684                /* QDR network side */
 685                window = ((addr - QLA82XX_ADDR_QDR_NET) >> 22) & 0x3f;
 686                if (ha->qdr_sn_window == window)
 687                        return 1;
 688        }
 689        return 0;
 690}
 691
 692static int qla82xx_pci_mem_read_direct(struct qla_hw_data *ha,
 693        u64 off, void *data, int size)
 694{
 695        unsigned long   flags;
 696        void __iomem *addr = NULL;
 697        int             ret = 0;
 698        u64             start;
 699        uint8_t __iomem  *mem_ptr = NULL;
 700        unsigned long   mem_base;
 701        unsigned long   mem_page;
 702        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 703
 704        write_lock_irqsave(&ha->hw_lock, flags);
 705
 706        /*
 707         * If attempting to access unknown address or straddle hw windows,
 708         * do not access.
 709         */
 710        start = qla82xx_pci_set_window(ha, off);
 711        if ((start == -1UL) ||
 712                (qla82xx_pci_is_same_window(ha, off + size - 1) == 0)) {
 713                write_unlock_irqrestore(&ha->hw_lock, flags);
 714                ql_log(ql_log_fatal, vha, 0xb008,
 715                    "%s out of bound pci memory "
 716                    "access, offset is 0x%llx.\n",
 717                    QLA2XXX_DRIVER_NAME, off);
 718                return -1;
 719        }
 720
 721        write_unlock_irqrestore(&ha->hw_lock, flags);
 722        mem_base = pci_resource_start(ha->pdev, 0);
 723        mem_page = start & PAGE_MASK;
 724        /* Map two pages whenever user tries to access addresses in two
 725        * consecutive pages.
 726        */
 727        if (mem_page != ((start + size - 1) & PAGE_MASK))
 728                mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE * 2);
 729        else
 730                mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE);
 731        if (mem_ptr == NULL) {
 732                *(u8  *)data = 0;
 733                return -1;
 734        }
 735        addr = mem_ptr;
 736        addr += start & (PAGE_SIZE - 1);
 737        write_lock_irqsave(&ha->hw_lock, flags);
 738
 739        switch (size) {
 740        case 1:
 741                *(u8  *)data = readb(addr);
 742                break;
 743        case 2:
 744                *(u16 *)data = readw(addr);
 745                break;
 746        case 4:
 747                *(u32 *)data = readl(addr);
 748                break;
 749        case 8:
 750                *(u64 *)data = readq(addr);
 751                break;
 752        default:
 753                ret = -1;
 754                break;
 755        }
 756        write_unlock_irqrestore(&ha->hw_lock, flags);
 757
 758        if (mem_ptr)
 759                iounmap(mem_ptr);
 760        return ret;
 761}
 762
 763static int
 764qla82xx_pci_mem_write_direct(struct qla_hw_data *ha,
 765        u64 off, void *data, int size)
 766{
 767        unsigned long   flags;
 768        void  __iomem *addr = NULL;
 769        int             ret = 0;
 770        u64             start;
 771        uint8_t __iomem *mem_ptr = NULL;
 772        unsigned long   mem_base;
 773        unsigned long   mem_page;
 774        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 775
 776        write_lock_irqsave(&ha->hw_lock, flags);
 777
 778        /*
 779         * If attempting to access unknown address or straddle hw windows,
 780         * do not access.
 781         */
 782        start = qla82xx_pci_set_window(ha, off);
 783        if ((start == -1UL) ||
 784                (qla82xx_pci_is_same_window(ha, off + size - 1) == 0)) {
 785                write_unlock_irqrestore(&ha->hw_lock, flags);
 786                ql_log(ql_log_fatal, vha, 0xb009,
 787                    "%s out of bound memory "
 788                    "access, offset is 0x%llx.\n",
 789                    QLA2XXX_DRIVER_NAME, off);
 790                return -1;
 791        }
 792
 793        write_unlock_irqrestore(&ha->hw_lock, flags);
 794        mem_base = pci_resource_start(ha->pdev, 0);
 795        mem_page = start & PAGE_MASK;
 796        /* Map two pages whenever user tries to access addresses in two
 797         * consecutive pages.
 798         */
 799        if (mem_page != ((start + size - 1) & PAGE_MASK))
 800                mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE*2);
 801        else
 802                mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE);
 803        if (mem_ptr == NULL)
 804                return -1;
 805
 806        addr = mem_ptr;
 807        addr += start & (PAGE_SIZE - 1);
 808        write_lock_irqsave(&ha->hw_lock, flags);
 809
 810        switch (size) {
 811        case 1:
 812                writeb(*(u8  *)data, addr);
 813                break;
 814        case 2:
 815                writew(*(u16 *)data, addr);
 816                break;
 817        case 4:
 818                writel(*(u32 *)data, addr);
 819                break;
 820        case 8:
 821                writeq(*(u64 *)data, addr);
 822                break;
 823        default:
 824                ret = -1;
 825                break;
 826        }
 827        write_unlock_irqrestore(&ha->hw_lock, flags);
 828        if (mem_ptr)
 829                iounmap(mem_ptr);
 830        return ret;
 831}
 832
 833#define MTU_FUDGE_FACTOR 100
 834static unsigned long
 835qla82xx_decode_crb_addr(unsigned long addr)
 836{
 837        int i;
 838        unsigned long base_addr, offset, pci_base;
 839
 840        if (!qla82xx_crb_table_initialized)
 841                qla82xx_crb_addr_transform_setup();
 842
 843        pci_base = ADDR_ERROR;
 844        base_addr = addr & 0xfff00000;
 845        offset = addr & 0x000fffff;
 846
 847        for (i = 0; i < MAX_CRB_XFORM; i++) {
 848                if (crb_addr_xform[i] == base_addr) {
 849                        pci_base = i << 20;
 850                        break;
 851                }
 852        }
 853        if (pci_base == ADDR_ERROR)
 854                return pci_base;
 855        return pci_base + offset;
 856}
 857
 858static long rom_max_timeout = 100;
 859static long qla82xx_rom_lock_timeout = 100;
 860
 861static int
 862qla82xx_rom_lock(struct qla_hw_data *ha)
 863{
 864        int done = 0, timeout = 0;
 865        uint32_t lock_owner = 0;
 866        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 867
 868        while (!done) {
 869                /* acquire semaphore2 from PCI HW block */
 870                done = qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_LOCK));
 871                if (done == 1)
 872                        break;
 873                if (timeout >= qla82xx_rom_lock_timeout) {
 874                        lock_owner = qla82xx_rd_32(ha, QLA82XX_ROM_LOCK_ID);
 875                        ql_dbg(ql_dbg_p3p, vha, 0xb157,
 876                            "%s: Simultaneous flash access by following ports, active port = %d: accessing port = %d",
 877                            __func__, ha->portnum, lock_owner);
 878                        return -1;
 879                }
 880                timeout++;
 881        }
 882        qla82xx_wr_32(ha, QLA82XX_ROM_LOCK_ID, ha->portnum);
 883        return 0;
 884}
 885
 886static void
 887qla82xx_rom_unlock(struct qla_hw_data *ha)
 888{
 889        qla82xx_wr_32(ha, QLA82XX_ROM_LOCK_ID, 0xffffffff);
 890        qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_UNLOCK));
 891}
 892
 893static int
 894qla82xx_wait_rom_busy(struct qla_hw_data *ha)
 895{
 896        long timeout = 0;
 897        long done = 0 ;
 898        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 899
 900        while (done == 0) {
 901                done = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_STATUS);
 902                done &= 4;
 903                timeout++;
 904                if (timeout >= rom_max_timeout) {
 905                        ql_dbg(ql_dbg_p3p, vha, 0xb00a,
 906                            "%s: Timeout reached waiting for rom busy.\n",
 907                            QLA2XXX_DRIVER_NAME);
 908                        return -1;
 909                }
 910        }
 911        return 0;
 912}
 913
 914static int
 915qla82xx_wait_rom_done(struct qla_hw_data *ha)
 916{
 917        long timeout = 0;
 918        long done = 0 ;
 919        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 920
 921        while (done == 0) {
 922                done = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_STATUS);
 923                done &= 2;
 924                timeout++;
 925                if (timeout >= rom_max_timeout) {
 926                        ql_dbg(ql_dbg_p3p, vha, 0xb00b,
 927                            "%s: Timeout reached waiting for rom done.\n",
 928                            QLA2XXX_DRIVER_NAME);
 929                        return -1;
 930                }
 931        }
 932        return 0;
 933}
 934
 935static int
 936qla82xx_md_rw_32(struct qla_hw_data *ha, uint32_t off, u32 data, uint8_t flag)
 937{
 938        uint32_t  off_value, rval = 0;
 939
 940        WRT_REG_DWORD(CRB_WINDOW_2M + ha->nx_pcibase, off & 0xFFFF0000);
 941
 942        /* Read back value to make sure write has gone through */
 943        RD_REG_DWORD(CRB_WINDOW_2M + ha->nx_pcibase);
 944        off_value  = (off & 0x0000FFFF);
 945
 946        if (flag)
 947                WRT_REG_DWORD(off_value + CRB_INDIRECT_2M + ha->nx_pcibase,
 948                              data);
 949        else
 950                rval = RD_REG_DWORD(off_value + CRB_INDIRECT_2M +
 951                                    ha->nx_pcibase);
 952
 953        return rval;
 954}
 955
 956static int
 957qla82xx_do_rom_fast_read(struct qla_hw_data *ha, int addr, int *valp)
 958{
 959        /* Dword reads to flash. */
 960        qla82xx_md_rw_32(ha, MD_DIRECT_ROM_WINDOW, (addr & 0xFFFF0000), 1);
 961        *valp = qla82xx_md_rw_32(ha, MD_DIRECT_ROM_READ_BASE +
 962            (addr & 0x0000FFFF), 0, 0);
 963
 964        return 0;
 965}
 966
 967static int
 968qla82xx_rom_fast_read(struct qla_hw_data *ha, int addr, int *valp)
 969{
 970        int ret, loops = 0;
 971        uint32_t lock_owner = 0;
 972        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 973
 974        while ((qla82xx_rom_lock(ha) != 0) && (loops < 50000)) {
 975                udelay(100);
 976                schedule();
 977                loops++;
 978        }
 979        if (loops >= 50000) {
 980                lock_owner = qla82xx_rd_32(ha, QLA82XX_ROM_LOCK_ID);
 981                ql_log(ql_log_fatal, vha, 0x00b9,
 982                    "Failed to acquire SEM2 lock, Lock Owner %u.\n",
 983                    lock_owner);
 984                return -1;
 985        }
 986        ret = qla82xx_do_rom_fast_read(ha, addr, valp);
 987        qla82xx_rom_unlock(ha);
 988        return ret;
 989}
 990
 991static int
 992qla82xx_read_status_reg(struct qla_hw_data *ha, uint32_t *val)
 993{
 994        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 995
 996        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_RDSR);
 997        qla82xx_wait_rom_busy(ha);
 998        if (qla82xx_wait_rom_done(ha)) {
 999                ql_log(ql_log_warn, vha, 0xb00c,
1000                    "Error waiting for rom done.\n");
1001                return -1;
1002        }
1003        *val = qla82xx_rd_32(ha, QLA82XX_ROMUSB_ROM_RDATA);
1004        return 0;
1005}
1006
1007static int
1008qla82xx_flash_wait_write_finish(struct qla_hw_data *ha)
1009{
1010        long timeout = 0;
1011        uint32_t done = 1 ;
1012        uint32_t val;
1013        int ret = 0;
1014        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1015
1016        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 0);
1017        while ((done != 0) && (ret == 0)) {
1018                ret = qla82xx_read_status_reg(ha, &val);
1019                done = val & 1;
1020                timeout++;
1021                udelay(10);
1022                cond_resched();
1023                if (timeout >= 50000) {
1024                        ql_log(ql_log_warn, vha, 0xb00d,
1025                            "Timeout reached waiting for write finish.\n");
1026                        return -1;
1027                }
1028        }
1029        return ret;
1030}
1031
1032static int
1033qla82xx_flash_set_write_enable(struct qla_hw_data *ha)
1034{
1035        uint32_t val;
1036
1037        qla82xx_wait_rom_busy(ha);
1038        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 0);
1039        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_WREN);
1040        qla82xx_wait_rom_busy(ha);
1041        if (qla82xx_wait_rom_done(ha))
1042                return -1;
1043        if (qla82xx_read_status_reg(ha, &val) != 0)
1044                return -1;
1045        if ((val & 2) != 2)
1046                return -1;
1047        return 0;
1048}
1049
1050static int
1051qla82xx_write_status_reg(struct qla_hw_data *ha, uint32_t val)
1052{
1053        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1054
1055        if (qla82xx_flash_set_write_enable(ha))
1056                return -1;
1057        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_WDATA, val);
1058        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, 0x1);
1059        if (qla82xx_wait_rom_done(ha)) {
1060                ql_log(ql_log_warn, vha, 0xb00e,
1061                    "Error waiting for rom done.\n");
1062                return -1;
1063        }
1064        return qla82xx_flash_wait_write_finish(ha);
1065}
1066
1067static int
1068qla82xx_write_disable_flash(struct qla_hw_data *ha)
1069{
1070        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1071
1072        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_WRDI);
1073        if (qla82xx_wait_rom_done(ha)) {
1074                ql_log(ql_log_warn, vha, 0xb00f,
1075                    "Error waiting for rom done.\n");
1076                return -1;
1077        }
1078        return 0;
1079}
1080
1081static int
1082ql82xx_rom_lock_d(struct qla_hw_data *ha)
1083{
1084        int loops = 0;
1085        uint32_t lock_owner = 0;
1086        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1087
1088        while ((qla82xx_rom_lock(ha) != 0) && (loops < 50000)) {
1089                udelay(100);
1090                cond_resched();
1091                loops++;
1092        }
1093        if (loops >= 50000) {
1094                lock_owner = qla82xx_rd_32(ha, QLA82XX_ROM_LOCK_ID);
1095                ql_log(ql_log_warn, vha, 0xb010,
1096                    "ROM lock failed, Lock Owner %u.\n", lock_owner);
1097                return -1;
1098        }
1099        return 0;
1100}
1101
1102static int
1103qla82xx_write_flash_dword(struct qla_hw_data *ha, uint32_t flashaddr,
1104        uint32_t data)
1105{
1106        int ret = 0;
1107        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1108
1109        ret = ql82xx_rom_lock_d(ha);
1110        if (ret < 0) {
1111                ql_log(ql_log_warn, vha, 0xb011,
1112                    "ROM lock failed.\n");
1113                return ret;
1114        }
1115
1116        if (qla82xx_flash_set_write_enable(ha))
1117                goto done_write;
1118
1119        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_WDATA, data);
1120        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ADDRESS, flashaddr);
1121        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 3);
1122        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_PP);
1123        qla82xx_wait_rom_busy(ha);
1124        if (qla82xx_wait_rom_done(ha)) {
1125                ql_log(ql_log_warn, vha, 0xb012,
1126                    "Error waiting for rom done.\n");
1127                ret = -1;
1128                goto done_write;
1129        }
1130
1131        ret = qla82xx_flash_wait_write_finish(ha);
1132
1133done_write:
1134        qla82xx_rom_unlock(ha);
1135        return ret;
1136}
1137
1138/* This routine does CRB initialize sequence
1139 *  to put the ISP into operational state
1140 */
1141static int
1142qla82xx_pinit_from_rom(scsi_qla_host_t *vha)
1143{
1144        int addr, val;
1145        int i ;
1146        struct crb_addr_pair *buf;
1147        unsigned long off;
1148        unsigned offset, n;
1149        struct qla_hw_data *ha = vha->hw;
1150
1151        struct crb_addr_pair {
1152                long addr;
1153                long data;
1154        };
1155
1156        /* Halt all the individual PEGs and other blocks of the ISP */
1157        qla82xx_rom_lock(ha);
1158
1159        /* disable all I2Q */
1160        qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x10, 0x0);
1161        qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x14, 0x0);
1162        qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x18, 0x0);
1163        qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x1c, 0x0);
1164        qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x20, 0x0);
1165        qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x24, 0x0);
1166
1167        /* disable all niu interrupts */
1168        qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x40, 0xff);
1169        /* disable xge rx/tx */
1170        qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x70000, 0x00);
1171        /* disable xg1 rx/tx */
1172        qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x80000, 0x00);
1173        /* disable sideband mac */
1174        qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x90000, 0x00);
1175        /* disable ap0 mac */
1176        qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0xa0000, 0x00);
1177        /* disable ap1 mac */
1178        qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0xb0000, 0x00);
1179
1180        /* halt sre */
1181        val = qla82xx_rd_32(ha, QLA82XX_CRB_SRE + 0x1000);
1182        qla82xx_wr_32(ha, QLA82XX_CRB_SRE + 0x1000, val & (~(0x1)));
1183
1184        /* halt epg */
1185        qla82xx_wr_32(ha, QLA82XX_CRB_EPG + 0x1300, 0x1);
1186
1187        /* halt timers */
1188        qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x0, 0x0);
1189        qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x8, 0x0);
1190        qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x10, 0x0);
1191        qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x18, 0x0);
1192        qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x100, 0x0);
1193        qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x200, 0x0);
1194
1195        /* halt pegs */
1196        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x3c, 1);
1197        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1 + 0x3c, 1);
1198        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2 + 0x3c, 1);
1199        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3 + 0x3c, 1);
1200        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_4 + 0x3c, 1);
1201        msleep(20);
1202
1203        /* big hammer */
1204        if (test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
1205                /* don't reset CAM block on reset */
1206                qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xfeffffff);
1207        else
1208                qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xffffffff);
1209        qla82xx_rom_unlock(ha);
1210
1211        /* Read the signature value from the flash.
1212         * Offset 0: Contain signature (0xcafecafe)
1213         * Offset 4: Offset and number of addr/value pairs
1214         * that present in CRB initialize sequence
1215         */
1216        if (qla82xx_rom_fast_read(ha, 0, &n) != 0 || n != 0xcafecafeUL ||
1217            qla82xx_rom_fast_read(ha, 4, &n) != 0) {
1218                ql_log(ql_log_fatal, vha, 0x006e,
1219                    "Error Reading crb_init area: n: %08x.\n", n);
1220                return -1;
1221        }
1222
1223        /* Offset in flash = lower 16 bits
1224         * Number of entries = upper 16 bits
1225         */
1226        offset = n & 0xffffU;
1227        n = (n >> 16) & 0xffffU;
1228
1229        /* number of addr/value pair should not exceed 1024 entries */
1230        if (n  >= 1024) {
1231                ql_log(ql_log_fatal, vha, 0x0071,
1232                    "Card flash not initialized:n=0x%x.\n", n);
1233                return -1;
1234        }
1235
1236        ql_log(ql_log_info, vha, 0x0072,
1237            "%d CRB init values found in ROM.\n", n);
1238
1239        buf = kmalloc_array(n, sizeof(struct crb_addr_pair), GFP_KERNEL);
1240        if (buf == NULL) {
1241                ql_log(ql_log_fatal, vha, 0x010c,
1242                    "Unable to allocate memory.\n");
1243                return -ENOMEM;
1244        }
1245
1246        for (i = 0; i < n; i++) {
1247                if (qla82xx_rom_fast_read(ha, 8*i + 4*offset, &val) != 0 ||
1248                    qla82xx_rom_fast_read(ha, 8*i + 4*offset + 4, &addr) != 0) {
1249                        kfree(buf);
1250                        return -1;
1251                }
1252
1253                buf[i].addr = addr;
1254                buf[i].data = val;
1255        }
1256
1257        for (i = 0; i < n; i++) {
1258                /* Translate internal CRB initialization
1259                 * address to PCI bus address
1260                 */
1261                off = qla82xx_decode_crb_addr((unsigned long)buf[i].addr) +
1262                    QLA82XX_PCI_CRBSPACE;
1263                /* Not all CRB  addr/value pair to be written,
1264                 * some of them are skipped
1265                 */
1266
1267                /* skipping cold reboot MAGIC */
1268                if (off == QLA82XX_CAM_RAM(0x1fc))
1269                        continue;
1270
1271                /* do not reset PCI */
1272                if (off == (ROMUSB_GLB + 0xbc))
1273                        continue;
1274
1275                /* skip core clock, so that firmware can increase the clock */
1276                if (off == (ROMUSB_GLB + 0xc8))
1277                        continue;
1278
1279                /* skip the function enable register */
1280                if (off == QLA82XX_PCIE_REG(PCIE_SETUP_FUNCTION))
1281                        continue;
1282
1283                if (off == QLA82XX_PCIE_REG(PCIE_SETUP_FUNCTION2))
1284                        continue;
1285
1286                if ((off & 0x0ff00000) == QLA82XX_CRB_SMB)
1287                        continue;
1288
1289                if ((off & 0x0ff00000) == QLA82XX_CRB_DDR_NET)
1290                        continue;
1291
1292                if (off == ADDR_ERROR) {
1293                        ql_log(ql_log_fatal, vha, 0x0116,
1294                            "Unknown addr: 0x%08lx.\n", buf[i].addr);
1295                        continue;
1296                }
1297
1298                qla82xx_wr_32(ha, off, buf[i].data);
1299
1300                /* ISP requires much bigger delay to settle down,
1301                 * else crb_window returns 0xffffffff
1302                 */
1303                if (off == QLA82XX_ROMUSB_GLB_SW_RESET)
1304                        msleep(1000);
1305
1306                /* ISP requires millisec delay between
1307                 * successive CRB register updation
1308                 */
1309                msleep(1);
1310        }
1311
1312        kfree(buf);
1313
1314        /* Resetting the data and instruction cache */
1315        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0xec, 0x1e);
1316        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0x4c, 8);
1317        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_I+0x4c, 8);
1318
1319        /* Clear all protocol processing engines */
1320        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0x8, 0);
1321        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0xc, 0);
1322        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0x8, 0);
1323        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0xc, 0);
1324        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0x8, 0);
1325        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0xc, 0);
1326        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0x8, 0);
1327        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0xc, 0);
1328        return 0;
1329}
1330
1331static int
1332qla82xx_pci_mem_write_2M(struct qla_hw_data *ha,
1333                u64 off, void *data, int size)
1334{
1335        int i, j, ret = 0, loop, sz[2], off0;
1336        int scale, shift_amount, startword;
1337        uint32_t temp;
1338        uint64_t off8, mem_crb, tmpw, word[2] = {0, 0};
1339
1340        /*
1341         * If not MN, go check for MS or invalid.
1342         */
1343        if (off >= QLA82XX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX)
1344                mem_crb = QLA82XX_CRB_QDR_NET;
1345        else {
1346                mem_crb = QLA82XX_CRB_DDR_NET;
1347                if (qla82xx_pci_mem_bound_check(ha, off, size) == 0)
1348                        return qla82xx_pci_mem_write_direct(ha,
1349                            off, data, size);
1350        }
1351
1352        off0 = off & 0x7;
1353        sz[0] = (size < (8 - off0)) ? size : (8 - off0);
1354        sz[1] = size - sz[0];
1355
1356        off8 = off & 0xfffffff0;
1357        loop = (((off & 0xf) + size - 1) >> 4) + 1;
1358        shift_amount = 4;
1359        scale = 2;
1360        startword = (off & 0xf)/8;
1361
1362        for (i = 0; i < loop; i++) {
1363                if (qla82xx_pci_mem_read_2M(ha, off8 +
1364                    (i << shift_amount), &word[i * scale], 8))
1365                        return -1;
1366        }
1367
1368        switch (size) {
1369        case 1:
1370                tmpw = *((uint8_t *)data);
1371                break;
1372        case 2:
1373                tmpw = *((uint16_t *)data);
1374                break;
1375        case 4:
1376                tmpw = *((uint32_t *)data);
1377                break;
1378        case 8:
1379        default:
1380                tmpw = *((uint64_t *)data);
1381                break;
1382        }
1383
1384        if (sz[0] == 8) {
1385                word[startword] = tmpw;
1386        } else {
1387                word[startword] &=
1388                        ~((~(~0ULL << (sz[0] * 8))) << (off0 * 8));
1389                word[startword] |= tmpw << (off0 * 8);
1390        }
1391        if (sz[1] != 0) {
1392                word[startword+1] &= ~(~0ULL << (sz[1] * 8));
1393                word[startword+1] |= tmpw >> (sz[0] * 8);
1394        }
1395
1396        for (i = 0; i < loop; i++) {
1397                temp = off8 + (i << shift_amount);
1398                qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_LO, temp);
1399                temp = 0;
1400                qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_HI, temp);
1401                temp = word[i * scale] & 0xffffffff;
1402                qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_LO, temp);
1403                temp = (word[i * scale] >> 32) & 0xffffffff;
1404                qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_HI, temp);
1405                temp = word[i*scale + 1] & 0xffffffff;
1406                qla82xx_wr_32(ha, mem_crb +
1407                    MIU_TEST_AGT_WRDATA_UPPER_LO, temp);
1408                temp = (word[i*scale + 1] >> 32) & 0xffffffff;
1409                qla82xx_wr_32(ha, mem_crb +
1410                    MIU_TEST_AGT_WRDATA_UPPER_HI, temp);
1411
1412                temp = MIU_TA_CTL_ENABLE | MIU_TA_CTL_WRITE;
1413                qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1414                temp = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE | MIU_TA_CTL_WRITE;
1415                qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1416
1417                for (j = 0; j < MAX_CTL_CHECK; j++) {
1418                        temp = qla82xx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL);
1419                        if ((temp & MIU_TA_CTL_BUSY) == 0)
1420                                break;
1421                }
1422
1423                if (j >= MAX_CTL_CHECK) {
1424                        if (printk_ratelimit())
1425                                dev_err(&ha->pdev->dev,
1426                                    "failed to write through agent.\n");
1427                        ret = -1;
1428                        break;
1429                }
1430        }
1431
1432        return ret;
1433}
1434
1435static int
1436qla82xx_fw_load_from_flash(struct qla_hw_data *ha)
1437{
1438        int  i;
1439        long size = 0;
1440        long flashaddr = ha->flt_region_bootload << 2;
1441        long memaddr = BOOTLD_START;
1442        u64 data;
1443        u32 high, low;
1444
1445        size = (IMAGE_START - BOOTLD_START) / 8;
1446
1447        for (i = 0; i < size; i++) {
1448                if ((qla82xx_rom_fast_read(ha, flashaddr, (int *)&low)) ||
1449                    (qla82xx_rom_fast_read(ha, flashaddr + 4, (int *)&high))) {
1450                        return -1;
1451                }
1452                data = ((u64)high << 32) | low ;
1453                qla82xx_pci_mem_write_2M(ha, memaddr, &data, 8);
1454                flashaddr += 8;
1455                memaddr += 8;
1456
1457                if (i % 0x1000 == 0)
1458                        msleep(1);
1459        }
1460        udelay(100);
1461        read_lock(&ha->hw_lock);
1462        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x18, 0x1020);
1463        qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0x80001e);
1464        read_unlock(&ha->hw_lock);
1465        return 0;
1466}
1467
1468int
1469qla82xx_pci_mem_read_2M(struct qla_hw_data *ha,
1470                u64 off, void *data, int size)
1471{
1472        int i, j = 0, k, start, end, loop, sz[2], off0[2];
1473        int           shift_amount;
1474        uint32_t      temp;
1475        uint64_t      off8, val, mem_crb, word[2] = {0, 0};
1476
1477        /*
1478         * If not MN, go check for MS or invalid.
1479         */
1480
1481        if (off >= QLA82XX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX)
1482                mem_crb = QLA82XX_CRB_QDR_NET;
1483        else {
1484                mem_crb = QLA82XX_CRB_DDR_NET;
1485                if (qla82xx_pci_mem_bound_check(ha, off, size) == 0)
1486                        return qla82xx_pci_mem_read_direct(ha,
1487                            off, data, size);
1488        }
1489
1490        off8 = off & 0xfffffff0;
1491        off0[0] = off & 0xf;
1492        sz[0] = (size < (16 - off0[0])) ? size : (16 - off0[0]);
1493        shift_amount = 4;
1494        loop = ((off0[0] + size - 1) >> shift_amount) + 1;
1495        off0[1] = 0;
1496        sz[1] = size - sz[0];
1497
1498        for (i = 0; i < loop; i++) {
1499                temp = off8 + (i << shift_amount);
1500                qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_LO, temp);
1501                temp = 0;
1502                qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_HI, temp);
1503                temp = MIU_TA_CTL_ENABLE;
1504                qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1505                temp = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE;
1506                qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1507
1508                for (j = 0; j < MAX_CTL_CHECK; j++) {
1509                        temp = qla82xx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL);
1510                        if ((temp & MIU_TA_CTL_BUSY) == 0)
1511                                break;
1512                }
1513
1514                if (j >= MAX_CTL_CHECK) {
1515                        if (printk_ratelimit())
1516                                dev_err(&ha->pdev->dev,
1517                                    "failed to read through agent.\n");
1518                        break;
1519                }
1520
1521                start = off0[i] >> 2;
1522                end   = (off0[i] + sz[i] - 1) >> 2;
1523                for (k = start; k <= end; k++) {
1524                        temp = qla82xx_rd_32(ha,
1525                                        mem_crb + MIU_TEST_AGT_RDDATA(k));
1526                        word[i] |= ((uint64_t)temp << (32 * (k & 1)));
1527                }
1528        }
1529
1530        if (j >= MAX_CTL_CHECK)
1531                return -1;
1532
1533        if ((off0[0] & 7) == 0) {
1534                val = word[0];
1535        } else {
1536                val = ((word[0] >> (off0[0] * 8)) & (~(~0ULL << (sz[0] * 8)))) |
1537                        ((word[1] & (~(~0ULL << (sz[1] * 8)))) << (sz[0] * 8));
1538        }
1539
1540        switch (size) {
1541        case 1:
1542                *(uint8_t  *)data = val;
1543                break;
1544        case 2:
1545                *(uint16_t *)data = val;
1546                break;
1547        case 4:
1548                *(uint32_t *)data = val;
1549                break;
1550        case 8:
1551                *(uint64_t *)data = val;
1552                break;
1553        }
1554        return 0;
1555}
1556
1557
1558static struct qla82xx_uri_table_desc *
1559qla82xx_get_table_desc(const u8 *unirom, int section)
1560{
1561        uint32_t i;
1562        struct qla82xx_uri_table_desc *directory =
1563                (struct qla82xx_uri_table_desc *)&unirom[0];
1564        __le32 offset;
1565        __le32 tab_type;
1566        __le32 entries = cpu_to_le32(directory->num_entries);
1567
1568        for (i = 0; i < entries; i++) {
1569                offset = cpu_to_le32(directory->findex) +
1570                    (i * cpu_to_le32(directory->entry_size));
1571                tab_type = cpu_to_le32(*((u32 *)&unirom[offset] + 8));
1572
1573                if (tab_type == section)
1574                        return (struct qla82xx_uri_table_desc *)&unirom[offset];
1575        }
1576
1577        return NULL;
1578}
1579
1580static struct qla82xx_uri_data_desc *
1581qla82xx_get_data_desc(struct qla_hw_data *ha,
1582        u32 section, u32 idx_offset)
1583{
1584        const u8 *unirom = ha->hablob->fw->data;
1585        int idx = cpu_to_le32(*((int *)&unirom[ha->file_prd_off] + idx_offset));
1586        struct qla82xx_uri_table_desc *tab_desc = NULL;
1587        __le32 offset;
1588
1589        tab_desc = qla82xx_get_table_desc(unirom, section);
1590        if (!tab_desc)
1591                return NULL;
1592
1593        offset = cpu_to_le32(tab_desc->findex) +
1594            (cpu_to_le32(tab_desc->entry_size) * idx);
1595
1596        return (struct qla82xx_uri_data_desc *)&unirom[offset];
1597}
1598
1599static u8 *
1600qla82xx_get_bootld_offset(struct qla_hw_data *ha)
1601{
1602        u32 offset = BOOTLD_START;
1603        struct qla82xx_uri_data_desc *uri_desc = NULL;
1604
1605        if (ha->fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
1606                uri_desc = qla82xx_get_data_desc(ha,
1607                    QLA82XX_URI_DIR_SECT_BOOTLD, QLA82XX_URI_BOOTLD_IDX_OFF);
1608                if (uri_desc)
1609                        offset = cpu_to_le32(uri_desc->findex);
1610        }
1611
1612        return (u8 *)&ha->hablob->fw->data[offset];
1613}
1614
1615static __le32
1616qla82xx_get_fw_size(struct qla_hw_data *ha)
1617{
1618        struct qla82xx_uri_data_desc *uri_desc = NULL;
1619
1620        if (ha->fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
1621                uri_desc =  qla82xx_get_data_desc(ha, QLA82XX_URI_DIR_SECT_FW,
1622                    QLA82XX_URI_FIRMWARE_IDX_OFF);
1623                if (uri_desc)
1624                        return cpu_to_le32(uri_desc->size);
1625        }
1626
1627        return cpu_to_le32(*(u32 *)&ha->hablob->fw->data[FW_SIZE_OFFSET]);
1628}
1629
1630static u8 *
1631qla82xx_get_fw_offs(struct qla_hw_data *ha)
1632{
1633        u32 offset = IMAGE_START;
1634        struct qla82xx_uri_data_desc *uri_desc = NULL;
1635
1636        if (ha->fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
1637                uri_desc = qla82xx_get_data_desc(ha, QLA82XX_URI_DIR_SECT_FW,
1638                        QLA82XX_URI_FIRMWARE_IDX_OFF);
1639                if (uri_desc)
1640                        offset = cpu_to_le32(uri_desc->findex);
1641        }
1642
1643        return (u8 *)&ha->hablob->fw->data[offset];
1644}
1645
1646/* PCI related functions */
1647int qla82xx_pci_region_offset(struct pci_dev *pdev, int region)
1648{
1649        unsigned long val = 0;
1650        u32 control;
1651
1652        switch (region) {
1653        case 0:
1654                val = 0;
1655                break;
1656        case 1:
1657                pci_read_config_dword(pdev, QLA82XX_PCI_REG_MSIX_TBL, &control);
1658                val = control + QLA82XX_MSIX_TBL_SPACE;
1659                break;
1660        }
1661        return val;
1662}
1663
1664
1665int
1666qla82xx_iospace_config(struct qla_hw_data *ha)
1667{
1668        uint32_t len = 0;
1669
1670        if (pci_request_regions(ha->pdev, QLA2XXX_DRIVER_NAME)) {
1671                ql_log_pci(ql_log_fatal, ha->pdev, 0x000c,
1672                    "Failed to reserver selected regions.\n");
1673                goto iospace_error_exit;
1674        }
1675
1676        /* Use MMIO operations for all accesses. */
1677        if (!(pci_resource_flags(ha->pdev, 0) & IORESOURCE_MEM)) {
1678                ql_log_pci(ql_log_fatal, ha->pdev, 0x000d,
1679                    "Region #0 not an MMIO resource, aborting.\n");
1680                goto iospace_error_exit;
1681        }
1682
1683        len = pci_resource_len(ha->pdev, 0);
1684        ha->nx_pcibase = ioremap(pci_resource_start(ha->pdev, 0), len);
1685        if (!ha->nx_pcibase) {
1686                ql_log_pci(ql_log_fatal, ha->pdev, 0x000e,
1687                    "Cannot remap pcibase MMIO, aborting.\n");
1688                goto iospace_error_exit;
1689        }
1690
1691        /* Mapping of IO base pointer */
1692        if (IS_QLA8044(ha)) {
1693                ha->iobase = ha->nx_pcibase;
1694        } else if (IS_QLA82XX(ha)) {
1695                ha->iobase = ha->nx_pcibase + 0xbc000 + (ha->pdev->devfn << 11);
1696        }
1697
1698        if (!ql2xdbwr) {
1699                ha->nxdb_wr_ptr = ioremap((pci_resource_start(ha->pdev, 4) +
1700                    (ha->pdev->devfn << 12)), 4);
1701                if (!ha->nxdb_wr_ptr) {
1702                        ql_log_pci(ql_log_fatal, ha->pdev, 0x000f,
1703                            "Cannot remap MMIO, aborting.\n");
1704                        goto iospace_error_exit;
1705                }
1706
1707                /* Mapping of IO base pointer,
1708                 * door bell read and write pointer
1709                 */
1710                ha->nxdb_rd_ptr = ha->nx_pcibase + (512 * 1024) +
1711                    (ha->pdev->devfn * 8);
1712        } else {
1713                ha->nxdb_wr_ptr = (void __iomem *)(ha->pdev->devfn == 6 ?
1714                        QLA82XX_CAMRAM_DB1 :
1715                        QLA82XX_CAMRAM_DB2);
1716        }
1717
1718        ha->max_req_queues = ha->max_rsp_queues = 1;
1719        ha->msix_count = ha->max_rsp_queues + 1;
1720        ql_dbg_pci(ql_dbg_multiq, ha->pdev, 0xc006,
1721            "nx_pci_base=%p iobase=%p "
1722            "max_req_queues=%d msix_count=%d.\n",
1723            ha->nx_pcibase, ha->iobase,
1724            ha->max_req_queues, ha->msix_count);
1725        ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0010,
1726            "nx_pci_base=%p iobase=%p "
1727            "max_req_queues=%d msix_count=%d.\n",
1728            ha->nx_pcibase, ha->iobase,
1729            ha->max_req_queues, ha->msix_count);
1730        return 0;
1731
1732iospace_error_exit:
1733        return -ENOMEM;
1734}
1735
1736/* GS related functions */
1737
1738/* Initialization related functions */
1739
1740/**
1741 * qla82xx_pci_config() - Setup ISP82xx PCI configuration registers.
1742 * @vha: HA context
1743 *
1744 * Returns 0 on success.
1745*/
1746int
1747qla82xx_pci_config(scsi_qla_host_t *vha)
1748{
1749        struct qla_hw_data *ha = vha->hw;
1750        int ret;
1751
1752        pci_set_master(ha->pdev);
1753        ret = pci_set_mwi(ha->pdev);
1754        ha->chip_revision = ha->pdev->revision;
1755        ql_dbg(ql_dbg_init, vha, 0x0043,
1756            "Chip revision:%d; pci_set_mwi() returned %d.\n",
1757            ha->chip_revision, ret);
1758        return 0;
1759}
1760
1761/**
1762 * qla82xx_reset_chip() - Setup ISP82xx PCI configuration registers.
1763 * @vha: HA context
1764 *
1765 * Returns 0 on success.
1766 */
1767int
1768qla82xx_reset_chip(scsi_qla_host_t *vha)
1769{
1770        struct qla_hw_data *ha = vha->hw;
1771
1772        ha->isp_ops->disable_intrs(ha);
1773
1774        return QLA_SUCCESS;
1775}
1776
1777void qla82xx_config_rings(struct scsi_qla_host *vha)
1778{
1779        struct qla_hw_data *ha = vha->hw;
1780        struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
1781        struct init_cb_81xx *icb;
1782        struct req_que *req = ha->req_q_map[0];
1783        struct rsp_que *rsp = ha->rsp_q_map[0];
1784
1785        /* Setup ring parameters in initialization control block. */
1786        icb = (struct init_cb_81xx *)ha->init_cb;
1787        icb->request_q_outpointer = cpu_to_le16(0);
1788        icb->response_q_inpointer = cpu_to_le16(0);
1789        icb->request_q_length = cpu_to_le16(req->length);
1790        icb->response_q_length = cpu_to_le16(rsp->length);
1791        put_unaligned_le64(req->dma, &icb->request_q_address);
1792        put_unaligned_le64(rsp->dma, &icb->response_q_address);
1793
1794        WRT_REG_DWORD(&reg->req_q_out[0], 0);
1795        WRT_REG_DWORD(&reg->rsp_q_in[0], 0);
1796        WRT_REG_DWORD(&reg->rsp_q_out[0], 0);
1797}
1798
1799static int
1800qla82xx_fw_load_from_blob(struct qla_hw_data *ha)
1801{
1802        u64 *ptr64;
1803        u32 i, flashaddr, size;
1804        __le64 data;
1805
1806        size = (IMAGE_START - BOOTLD_START) / 8;
1807
1808        ptr64 = (u64 *)qla82xx_get_bootld_offset(ha);
1809        flashaddr = BOOTLD_START;
1810
1811        for (i = 0; i < size; i++) {
1812                data = cpu_to_le64(ptr64[i]);
1813                if (qla82xx_pci_mem_write_2M(ha, flashaddr, &data, 8))
1814                        return -EIO;
1815                flashaddr += 8;
1816        }
1817
1818        flashaddr = FLASH_ADDR_START;
1819        size = (__force u32)qla82xx_get_fw_size(ha) / 8;
1820        ptr64 = (u64 *)qla82xx_get_fw_offs(ha);
1821
1822        for (i = 0; i < size; i++) {
1823                data = cpu_to_le64(ptr64[i]);
1824
1825                if (qla82xx_pci_mem_write_2M(ha, flashaddr, &data, 8))
1826                        return -EIO;
1827                flashaddr += 8;
1828        }
1829        udelay(100);
1830
1831        /* Write a magic value to CAMRAM register
1832         * at a specified offset to indicate
1833         * that all data is written and
1834         * ready for firmware to initialize.
1835         */
1836        qla82xx_wr_32(ha, QLA82XX_CAM_RAM(0x1fc), QLA82XX_BDINFO_MAGIC);
1837
1838        read_lock(&ha->hw_lock);
1839        qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x18, 0x1020);
1840        qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0x80001e);
1841        read_unlock(&ha->hw_lock);
1842        return 0;
1843}
1844
1845static int
1846qla82xx_set_product_offset(struct qla_hw_data *ha)
1847{
1848        struct qla82xx_uri_table_desc *ptab_desc = NULL;
1849        const uint8_t *unirom = ha->hablob->fw->data;
1850        uint32_t i;
1851        __le32 entries;
1852        __le32 flags, file_chiprev, offset;
1853        uint8_t chiprev = ha->chip_revision;
1854        /* Hardcoding mn_present flag for P3P */
1855        int mn_present = 0;
1856        uint32_t flagbit;
1857
1858        ptab_desc = qla82xx_get_table_desc(unirom,
1859                 QLA82XX_URI_DIR_SECT_PRODUCT_TBL);
1860        if (!ptab_desc)
1861                return -1;
1862
1863        entries = cpu_to_le32(ptab_desc->num_entries);
1864
1865        for (i = 0; i < entries; i++) {
1866                offset = cpu_to_le32(ptab_desc->findex) +
1867                        (i * cpu_to_le32(ptab_desc->entry_size));
1868                flags = cpu_to_le32(*((int *)&unirom[offset] +
1869                        QLA82XX_URI_FLAGS_OFF));
1870                file_chiprev = cpu_to_le32(*((int *)&unirom[offset] +
1871                        QLA82XX_URI_CHIP_REV_OFF));
1872
1873                flagbit = mn_present ? 1 : 2;
1874
1875                if ((chiprev == file_chiprev) && ((1ULL << flagbit) & flags)) {
1876                        ha->file_prd_off = offset;
1877                        return 0;
1878                }
1879        }
1880        return -1;
1881}
1882
1883static int
1884qla82xx_validate_firmware_blob(scsi_qla_host_t *vha, uint8_t fw_type)
1885{
1886        __le32 val;
1887        uint32_t min_size;
1888        struct qla_hw_data *ha = vha->hw;
1889        const struct firmware *fw = ha->hablob->fw;
1890
1891        ha->fw_type = fw_type;
1892
1893        if (fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
1894                if (qla82xx_set_product_offset(ha))
1895                        return -EINVAL;
1896
1897                min_size = QLA82XX_URI_FW_MIN_SIZE;
1898        } else {
1899                val = cpu_to_le32(*(u32 *)&fw->data[QLA82XX_FW_MAGIC_OFFSET]);
1900                if ((__force u32)val != QLA82XX_BDINFO_MAGIC)
1901                        return -EINVAL;
1902
1903                min_size = QLA82XX_FW_MIN_SIZE;
1904        }
1905
1906        if (fw->size < min_size)
1907                return -EINVAL;
1908        return 0;
1909}
1910
1911static int
1912qla82xx_check_cmdpeg_state(struct qla_hw_data *ha)
1913{
1914        u32 val = 0;
1915        int retries = 60;
1916        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1917
1918        do {
1919                read_lock(&ha->hw_lock);
1920                val = qla82xx_rd_32(ha, CRB_CMDPEG_STATE);
1921                read_unlock(&ha->hw_lock);
1922
1923                switch (val) {
1924                case PHAN_INITIALIZE_COMPLETE:
1925                case PHAN_INITIALIZE_ACK:
1926                        return QLA_SUCCESS;
1927                case PHAN_INITIALIZE_FAILED:
1928                        break;
1929                default:
1930                        break;
1931                }
1932                ql_log(ql_log_info, vha, 0x00a8,
1933                    "CRB_CMDPEG_STATE: 0x%x and retries:0x%x.\n",
1934                    val, retries);
1935
1936                msleep(500);
1937
1938        } while (--retries);
1939
1940        ql_log(ql_log_fatal, vha, 0x00a9,
1941            "Cmd Peg initialization failed: 0x%x.\n", val);
1942
1943        val = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_PEGTUNE_DONE);
1944        read_lock(&ha->hw_lock);
1945        qla82xx_wr_32(ha, CRB_CMDPEG_STATE, PHAN_INITIALIZE_FAILED);
1946        read_unlock(&ha->hw_lock);
1947        return QLA_FUNCTION_FAILED;
1948}
1949
1950static int
1951qla82xx_check_rcvpeg_state(struct qla_hw_data *ha)
1952{
1953        u32 val = 0;
1954        int retries = 60;
1955        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1956
1957        do {
1958                read_lock(&ha->hw_lock);
1959                val = qla82xx_rd_32(ha, CRB_RCVPEG_STATE);
1960                read_unlock(&ha->hw_lock);
1961
1962                switch (val) {
1963                case PHAN_INITIALIZE_COMPLETE:
1964                case PHAN_INITIALIZE_ACK:
1965                        return QLA_SUCCESS;
1966                case PHAN_INITIALIZE_FAILED:
1967                        break;
1968                default:
1969                        break;
1970                }
1971                ql_log(ql_log_info, vha, 0x00ab,
1972                    "CRB_RCVPEG_STATE: 0x%x and retries: 0x%x.\n",
1973                    val, retries);
1974
1975                msleep(500);
1976
1977        } while (--retries);
1978
1979        ql_log(ql_log_fatal, vha, 0x00ac,
1980            "Rcv Peg initializatin failed: 0x%x.\n", val);
1981        read_lock(&ha->hw_lock);
1982        qla82xx_wr_32(ha, CRB_RCVPEG_STATE, PHAN_INITIALIZE_FAILED);
1983        read_unlock(&ha->hw_lock);
1984        return QLA_FUNCTION_FAILED;
1985}
1986
1987/* ISR related functions */
1988static struct qla82xx_legacy_intr_set legacy_intr[] = \
1989        QLA82XX_LEGACY_INTR_CONFIG;
1990
1991/*
1992 * qla82xx_mbx_completion() - Process mailbox command completions.
1993 * @ha: SCSI driver HA context
1994 * @mb0: Mailbox0 register
1995 */
1996void
1997qla82xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
1998{
1999        uint16_t        cnt;
2000        uint16_t __iomem *wptr;
2001        struct qla_hw_data *ha = vha->hw;
2002        struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
2003
2004        wptr = (uint16_t __iomem *)&reg->mailbox_out[1];
2005
2006        /* Load return mailbox registers. */
2007        ha->flags.mbox_int = 1;
2008        ha->mailbox_out[0] = mb0;
2009
2010        for (cnt = 1; cnt < ha->mbx_count; cnt++) {
2011                ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
2012                wptr++;
2013        }
2014
2015        if (!ha->mcp)
2016                ql_dbg(ql_dbg_async, vha, 0x5053,
2017                    "MBX pointer ERROR.\n");
2018}
2019
2020/**
2021 * qla82xx_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
2022 * @irq: interrupt number
2023 * @dev_id: SCSI driver HA context
2024 *
2025 * Called by system whenever the host adapter generates an interrupt.
2026 *
2027 * Returns handled flag.
2028 */
2029irqreturn_t
2030qla82xx_intr_handler(int irq, void *dev_id)
2031{
2032        scsi_qla_host_t *vha;
2033        struct qla_hw_data *ha;
2034        struct rsp_que *rsp;
2035        struct device_reg_82xx __iomem *reg;
2036        int status = 0, status1 = 0;
2037        unsigned long   flags;
2038        unsigned long   iter;
2039        uint32_t        stat = 0;
2040        uint16_t        mb[8];
2041
2042        rsp = (struct rsp_que *) dev_id;
2043        if (!rsp) {
2044                ql_log(ql_log_info, NULL, 0xb053,
2045                    "%s: NULL response queue pointer.\n", __func__);
2046                return IRQ_NONE;
2047        }
2048        ha = rsp->hw;
2049
2050        if (!ha->flags.msi_enabled) {
2051                status = qla82xx_rd_32(ha, ISR_INT_VECTOR);
2052                if (!(status & ha->nx_legacy_intr.int_vec_bit))
2053                        return IRQ_NONE;
2054
2055                status1 = qla82xx_rd_32(ha, ISR_INT_STATE_REG);
2056                if (!ISR_IS_LEGACY_INTR_TRIGGERED(status1))
2057                        return IRQ_NONE;
2058        }
2059
2060        /* clear the interrupt */
2061        qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_status_reg, 0xffffffff);
2062
2063        /* read twice to ensure write is flushed */
2064        qla82xx_rd_32(ha, ISR_INT_VECTOR);
2065        qla82xx_rd_32(ha, ISR_INT_VECTOR);
2066
2067        reg = &ha->iobase->isp82;
2068
2069        spin_lock_irqsave(&ha->hardware_lock, flags);
2070        vha = pci_get_drvdata(ha->pdev);
2071        for (iter = 1; iter--; ) {
2072
2073                if (RD_REG_DWORD(&reg->host_int)) {
2074                        stat = RD_REG_DWORD(&reg->host_status);
2075
2076                        switch (stat & 0xff) {
2077                        case 0x1:
2078                        case 0x2:
2079                        case 0x10:
2080                        case 0x11:
2081                                qla82xx_mbx_completion(vha, MSW(stat));
2082                                status |= MBX_INTERRUPT;
2083                                break;
2084                        case 0x12:
2085                                mb[0] = MSW(stat);
2086                                mb[1] = RD_REG_WORD(&reg->mailbox_out[1]);
2087                                mb[2] = RD_REG_WORD(&reg->mailbox_out[2]);
2088                                mb[3] = RD_REG_WORD(&reg->mailbox_out[3]);
2089                                qla2x00_async_event(vha, rsp, mb);
2090                                break;
2091                        case 0x13:
2092                                qla24xx_process_response_queue(vha, rsp);
2093                                break;
2094                        default:
2095                                ql_dbg(ql_dbg_async, vha, 0x5054,
2096                                    "Unrecognized interrupt type (%d).\n",
2097                                    stat & 0xff);
2098                                break;
2099                        }
2100                }
2101                WRT_REG_DWORD(&reg->host_int, 0);
2102        }
2103
2104        qla2x00_handle_mbx_completion(ha, status);
2105        spin_unlock_irqrestore(&ha->hardware_lock, flags);
2106
2107        if (!ha->flags.msi_enabled)
2108                qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0xfbff);
2109
2110        return IRQ_HANDLED;
2111}
2112
2113irqreturn_t
2114qla82xx_msix_default(int irq, void *dev_id)
2115{
2116        scsi_qla_host_t *vha;
2117        struct qla_hw_data *ha;
2118        struct rsp_que *rsp;
2119        struct device_reg_82xx __iomem *reg;
2120        int status = 0;
2121        unsigned long flags;
2122        uint32_t stat = 0;
2123        uint32_t host_int = 0;
2124        uint16_t mb[8];
2125
2126        rsp = (struct rsp_que *) dev_id;
2127        if (!rsp) {
2128                printk(KERN_INFO
2129                        "%s(): NULL response queue pointer.\n", __func__);
2130                return IRQ_NONE;
2131        }
2132        ha = rsp->hw;
2133
2134        reg = &ha->iobase->isp82;
2135
2136        spin_lock_irqsave(&ha->hardware_lock, flags);
2137        vha = pci_get_drvdata(ha->pdev);
2138        do {
2139                host_int = RD_REG_DWORD(&reg->host_int);
2140                if (qla2x00_check_reg32_for_disconnect(vha, host_int))
2141                        break;
2142                if (host_int) {
2143                        stat = RD_REG_DWORD(&reg->host_status);
2144
2145                        switch (stat & 0xff) {
2146                        case 0x1:
2147                        case 0x2:
2148                        case 0x10:
2149                        case 0x11:
2150                                qla82xx_mbx_completion(vha, MSW(stat));
2151                                status |= MBX_INTERRUPT;
2152                                break;
2153                        case 0x12:
2154                                mb[0] = MSW(stat);
2155                                mb[1] = RD_REG_WORD(&reg->mailbox_out[1]);
2156                                mb[2] = RD_REG_WORD(&reg->mailbox_out[2]);
2157                                mb[3] = RD_REG_WORD(&reg->mailbox_out[3]);
2158                                qla2x00_async_event(vha, rsp, mb);
2159                                break;
2160                        case 0x13:
2161                                qla24xx_process_response_queue(vha, rsp);
2162                                break;
2163                        default:
2164                                ql_dbg(ql_dbg_async, vha, 0x5041,
2165                                    "Unrecognized interrupt type (%d).\n",
2166                                    stat & 0xff);
2167                                break;
2168                        }
2169                }
2170                WRT_REG_DWORD(&reg->host_int, 0);
2171        } while (0);
2172
2173        qla2x00_handle_mbx_completion(ha, status);
2174        spin_unlock_irqrestore(&ha->hardware_lock, flags);
2175
2176        return IRQ_HANDLED;
2177}
2178
2179irqreturn_t
2180qla82xx_msix_rsp_q(int irq, void *dev_id)
2181{
2182        scsi_qla_host_t *vha;
2183        struct qla_hw_data *ha;
2184        struct rsp_que *rsp;
2185        struct device_reg_82xx __iomem *reg;
2186        unsigned long flags;
2187        uint32_t host_int = 0;
2188
2189        rsp = (struct rsp_que *) dev_id;
2190        if (!rsp) {
2191                printk(KERN_INFO
2192                        "%s(): NULL response queue pointer.\n", __func__);
2193                return IRQ_NONE;
2194        }
2195
2196        ha = rsp->hw;
2197        reg = &ha->iobase->isp82;
2198        spin_lock_irqsave(&ha->hardware_lock, flags);
2199        vha = pci_get_drvdata(ha->pdev);
2200        host_int = RD_REG_DWORD(&reg->host_int);
2201        if (qla2x00_check_reg32_for_disconnect(vha, host_int))
2202                goto out;
2203        qla24xx_process_response_queue(vha, rsp);
2204        WRT_REG_DWORD(&reg->host_int, 0);
2205out:
2206        spin_unlock_irqrestore(&ha->hardware_lock, flags);
2207        return IRQ_HANDLED;
2208}
2209
2210void
2211qla82xx_poll(int irq, void *dev_id)
2212{
2213        scsi_qla_host_t *vha;
2214        struct qla_hw_data *ha;
2215        struct rsp_que *rsp;
2216        struct device_reg_82xx __iomem *reg;
2217        int status = 0;
2218        uint32_t stat;
2219        uint32_t host_int = 0;
2220        uint16_t mb[8];
2221        unsigned long flags;
2222
2223        rsp = (struct rsp_que *) dev_id;
2224        if (!rsp) {
2225                printk(KERN_INFO
2226                        "%s(): NULL response queue pointer.\n", __func__);
2227                return;
2228        }
2229        ha = rsp->hw;
2230
2231        reg = &ha->iobase->isp82;
2232        spin_lock_irqsave(&ha->hardware_lock, flags);
2233        vha = pci_get_drvdata(ha->pdev);
2234
2235        host_int = RD_REG_DWORD(&reg->host_int);
2236        if (qla2x00_check_reg32_for_disconnect(vha, host_int))
2237                goto out;
2238        if (host_int) {
2239                stat = RD_REG_DWORD(&reg->host_status);
2240                switch (stat & 0xff) {
2241                case 0x1:
2242                case 0x2:
2243                case 0x10:
2244                case 0x11:
2245                        qla82xx_mbx_completion(vha, MSW(stat));
2246                        status |= MBX_INTERRUPT;
2247                        break;
2248                case 0x12:
2249                        mb[0] = MSW(stat);
2250                        mb[1] = RD_REG_WORD(&reg->mailbox_out[1]);
2251                        mb[2] = RD_REG_WORD(&reg->mailbox_out[2]);
2252                        mb[3] = RD_REG_WORD(&reg->mailbox_out[3]);
2253                        qla2x00_async_event(vha, rsp, mb);
2254                        break;
2255                case 0x13:
2256                        qla24xx_process_response_queue(vha, rsp);
2257                        break;
2258                default:
2259                        ql_dbg(ql_dbg_p3p, vha, 0xb013,
2260                            "Unrecognized interrupt type (%d).\n",
2261                            stat * 0xff);
2262                        break;
2263                }
2264                WRT_REG_DWORD(&reg->host_int, 0);
2265        }
2266out:
2267        spin_unlock_irqrestore(&ha->hardware_lock, flags);
2268}
2269
2270void
2271qla82xx_enable_intrs(struct qla_hw_data *ha)
2272{
2273        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2274
2275        qla82xx_mbx_intr_enable(vha);
2276        spin_lock_irq(&ha->hardware_lock);
2277        if (IS_QLA8044(ha))
2278                qla8044_wr_reg(ha, LEG_INTR_MASK_OFFSET, 0);
2279        else
2280                qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0xfbff);
2281        spin_unlock_irq(&ha->hardware_lock);
2282        ha->interrupts_on = 1;
2283}
2284
2285void
2286qla82xx_disable_intrs(struct qla_hw_data *ha)
2287{
2288        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2289
2290        qla82xx_mbx_intr_disable(vha);
2291        spin_lock_irq(&ha->hardware_lock);
2292        if (IS_QLA8044(ha))
2293                qla8044_wr_reg(ha, LEG_INTR_MASK_OFFSET, 1);
2294        else
2295                qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0x0400);
2296        spin_unlock_irq(&ha->hardware_lock);
2297        ha->interrupts_on = 0;
2298}
2299
2300void qla82xx_init_flags(struct qla_hw_data *ha)
2301{
2302        struct qla82xx_legacy_intr_set *nx_legacy_intr;
2303
2304        /* ISP 8021 initializations */
2305        rwlock_init(&ha->hw_lock);
2306        ha->qdr_sn_window = -1;
2307        ha->ddr_mn_window = -1;
2308        ha->curr_window = 255;
2309        ha->portnum = PCI_FUNC(ha->pdev->devfn);
2310        nx_legacy_intr = &legacy_intr[ha->portnum];
2311        ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit;
2312        ha->nx_legacy_intr.tgt_status_reg = nx_legacy_intr->tgt_status_reg;
2313        ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg;
2314        ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg;
2315}
2316
2317static inline void
2318qla82xx_set_idc_version(scsi_qla_host_t *vha)
2319{
2320        int idc_ver;
2321        uint32_t drv_active;
2322        struct qla_hw_data *ha = vha->hw;
2323
2324        drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2325        if (drv_active == (QLA82XX_DRV_ACTIVE << (ha->portnum * 4))) {
2326                qla82xx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION,
2327                    QLA82XX_IDC_VERSION);
2328                ql_log(ql_log_info, vha, 0xb082,
2329                    "IDC version updated to %d\n", QLA82XX_IDC_VERSION);
2330        } else {
2331                idc_ver = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_IDC_VERSION);
2332                if (idc_ver != QLA82XX_IDC_VERSION)
2333                        ql_log(ql_log_info, vha, 0xb083,
2334                            "qla2xxx driver IDC version %d is not compatible "
2335                            "with IDC version %d of the other drivers\n",
2336                            QLA82XX_IDC_VERSION, idc_ver);
2337        }
2338}
2339
2340inline void
2341qla82xx_set_drv_active(scsi_qla_host_t *vha)
2342{
2343        uint32_t drv_active;
2344        struct qla_hw_data *ha = vha->hw;
2345
2346        drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2347
2348        /* If reset value is all FF's, initialize DRV_ACTIVE */
2349        if (drv_active == 0xffffffff) {
2350                qla82xx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE,
2351                        QLA82XX_DRV_NOT_ACTIVE);
2352                drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2353        }
2354        drv_active |= (QLA82XX_DRV_ACTIVE << (ha->portnum * 4));
2355        qla82xx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE, drv_active);
2356}
2357
2358inline void
2359qla82xx_clear_drv_active(struct qla_hw_data *ha)
2360{
2361        uint32_t drv_active;
2362
2363        drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2364        drv_active &= ~(QLA82XX_DRV_ACTIVE << (ha->portnum * 4));
2365        qla82xx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE, drv_active);
2366}
2367
2368static inline int
2369qla82xx_need_reset(struct qla_hw_data *ha)
2370{
2371        uint32_t drv_state;
2372        int rval;
2373
2374        if (ha->flags.nic_core_reset_owner)
2375                return 1;
2376        else {
2377                drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2378                rval = drv_state & (QLA82XX_DRVST_RST_RDY << (ha->portnum * 4));
2379                return rval;
2380        }
2381}
2382
2383static inline void
2384qla82xx_set_rst_ready(struct qla_hw_data *ha)
2385{
2386        uint32_t drv_state;
2387        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2388
2389        drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2390
2391        /* If reset value is all FF's, initialize DRV_STATE */
2392        if (drv_state == 0xffffffff) {
2393                qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, QLA82XX_DRVST_NOT_RDY);
2394                drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2395        }
2396        drv_state |= (QLA82XX_DRVST_RST_RDY << (ha->portnum * 4));
2397        ql_dbg(ql_dbg_init, vha, 0x00bb,
2398            "drv_state = 0x%08x.\n", drv_state);
2399        qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, drv_state);
2400}
2401
2402static inline void
2403qla82xx_clear_rst_ready(struct qla_hw_data *ha)
2404{
2405        uint32_t drv_state;
2406
2407        drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2408        drv_state &= ~(QLA82XX_DRVST_RST_RDY << (ha->portnum * 4));
2409        qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, drv_state);
2410}
2411
2412static inline void
2413qla82xx_set_qsnt_ready(struct qla_hw_data *ha)
2414{
2415        uint32_t qsnt_state;
2416
2417        qsnt_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2418        qsnt_state |= (QLA82XX_DRVST_QSNT_RDY << (ha->portnum * 4));
2419        qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, qsnt_state);
2420}
2421
2422void
2423qla82xx_clear_qsnt_ready(scsi_qla_host_t *vha)
2424{
2425        struct qla_hw_data *ha = vha->hw;
2426        uint32_t qsnt_state;
2427
2428        qsnt_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2429        qsnt_state &= ~(QLA82XX_DRVST_QSNT_RDY << (ha->portnum * 4));
2430        qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, qsnt_state);
2431}
2432
2433static int
2434qla82xx_load_fw(scsi_qla_host_t *vha)
2435{
2436        int rst;
2437        struct fw_blob *blob;
2438        struct qla_hw_data *ha = vha->hw;
2439
2440        if (qla82xx_pinit_from_rom(vha) != QLA_SUCCESS) {
2441                ql_log(ql_log_fatal, vha, 0x009f,
2442                    "Error during CRB initialization.\n");
2443                return QLA_FUNCTION_FAILED;
2444        }
2445        udelay(500);
2446
2447        /* Bring QM and CAMRAM out of reset */
2448        rst = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET);
2449        rst &= ~((1 << 28) | (1 << 24));
2450        qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, rst);
2451
2452        /*
2453         * FW Load priority:
2454         * 1) Operational firmware residing in flash.
2455         * 2) Firmware via request-firmware interface (.bin file).
2456         */
2457        if (ql2xfwloadbin == 2)
2458                goto try_blob_fw;
2459
2460        ql_log(ql_log_info, vha, 0x00a0,
2461            "Attempting to load firmware from flash.\n");
2462
2463        if (qla82xx_fw_load_from_flash(ha) == QLA_SUCCESS) {
2464                ql_log(ql_log_info, vha, 0x00a1,
2465                    "Firmware loaded successfully from flash.\n");
2466                return QLA_SUCCESS;
2467        } else {
2468                ql_log(ql_log_warn, vha, 0x0108,
2469                    "Firmware load from flash failed.\n");
2470        }
2471
2472try_blob_fw:
2473        ql_log(ql_log_info, vha, 0x00a2,
2474            "Attempting to load firmware from blob.\n");
2475
2476        /* Load firmware blob. */
2477        blob = ha->hablob = qla2x00_request_firmware(vha);
2478        if (!blob) {
2479                ql_log(ql_log_fatal, vha, 0x00a3,
2480                    "Firmware image not present.\n");
2481                goto fw_load_failed;
2482        }
2483
2484        /* Validating firmware blob */
2485        if (qla82xx_validate_firmware_blob(vha,
2486                QLA82XX_FLASH_ROMIMAGE)) {
2487                /* Fallback to URI format */
2488                if (qla82xx_validate_firmware_blob(vha,
2489                        QLA82XX_UNIFIED_ROMIMAGE)) {
2490                        ql_log(ql_log_fatal, vha, 0x00a4,
2491                            "No valid firmware image found.\n");
2492                        return QLA_FUNCTION_FAILED;
2493                }
2494        }
2495
2496        if (qla82xx_fw_load_from_blob(ha) == QLA_SUCCESS) {
2497                ql_log(ql_log_info, vha, 0x00a5,
2498                    "Firmware loaded successfully from binary blob.\n");
2499                return QLA_SUCCESS;
2500        }
2501
2502        ql_log(ql_log_fatal, vha, 0x00a6,
2503               "Firmware load failed for binary blob.\n");
2504        blob->fw = NULL;
2505        blob = NULL;
2506
2507fw_load_failed:
2508        return QLA_FUNCTION_FAILED;
2509}
2510
2511int
2512qla82xx_start_firmware(scsi_qla_host_t *vha)
2513{
2514        uint16_t      lnk;
2515        struct qla_hw_data *ha = vha->hw;
2516
2517        /* scrub dma mask expansion register */
2518        qla82xx_wr_32(ha, CRB_DMA_SHIFT, QLA82XX_DMA_SHIFT_VALUE);
2519
2520        /* Put both the PEG CMD and RCV PEG to default state
2521         * of 0 before resetting the hardware
2522         */
2523        qla82xx_wr_32(ha, CRB_CMDPEG_STATE, 0);
2524        qla82xx_wr_32(ha, CRB_RCVPEG_STATE, 0);
2525
2526        /* Overwrite stale initialization register values */
2527        qla82xx_wr_32(ha, QLA82XX_PEG_HALT_STATUS1, 0);
2528        qla82xx_wr_32(ha, QLA82XX_PEG_HALT_STATUS2, 0);
2529
2530        if (qla82xx_load_fw(vha) != QLA_SUCCESS) {
2531                ql_log(ql_log_fatal, vha, 0x00a7,
2532                    "Error trying to start fw.\n");
2533                return QLA_FUNCTION_FAILED;
2534        }
2535
2536        /* Handshake with the card before we register the devices. */
2537        if (qla82xx_check_cmdpeg_state(ha) != QLA_SUCCESS) {
2538                ql_log(ql_log_fatal, vha, 0x00aa,
2539                    "Error during card handshake.\n");
2540                return QLA_FUNCTION_FAILED;
2541        }
2542
2543        /* Negotiated Link width */
2544        pcie_capability_read_word(ha->pdev, PCI_EXP_LNKSTA, &lnk);
2545        ha->link_width = (lnk >> 4) & 0x3f;
2546
2547        /* Synchronize with Receive peg */
2548        return qla82xx_check_rcvpeg_state(ha);
2549}
2550
2551static uint32_t *
2552qla82xx_read_flash_data(scsi_qla_host_t *vha, uint32_t *dwptr, uint32_t faddr,
2553        uint32_t length)
2554{
2555        uint32_t i;
2556        uint32_t val;
2557        struct qla_hw_data *ha = vha->hw;
2558
2559        /* Dword reads to flash. */
2560        for (i = 0; i < length/4; i++, faddr += 4) {
2561                if (qla82xx_rom_fast_read(ha, faddr, &val)) {
2562                        ql_log(ql_log_warn, vha, 0x0106,
2563                            "Do ROM fast read failed.\n");
2564                        goto done_read;
2565                }
2566                dwptr[i] = cpu_to_le32(val);
2567        }
2568done_read:
2569        return dwptr;
2570}
2571
2572static int
2573qla82xx_unprotect_flash(struct qla_hw_data *ha)
2574{
2575        int ret;
2576        uint32_t val;
2577        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2578
2579        ret = ql82xx_rom_lock_d(ha);
2580        if (ret < 0) {
2581                ql_log(ql_log_warn, vha, 0xb014,
2582                    "ROM Lock failed.\n");
2583                return ret;
2584        }
2585
2586        ret = qla82xx_read_status_reg(ha, &val);
2587        if (ret < 0)
2588                goto done_unprotect;
2589
2590        val &= ~(BLOCK_PROTECT_BITS << 2);
2591        ret = qla82xx_write_status_reg(ha, val);
2592        if (ret < 0) {
2593                val |= (BLOCK_PROTECT_BITS << 2);
2594                qla82xx_write_status_reg(ha, val);
2595        }
2596
2597        if (qla82xx_write_disable_flash(ha) != 0)
2598                ql_log(ql_log_warn, vha, 0xb015,
2599                    "Write disable failed.\n");
2600
2601done_unprotect:
2602        qla82xx_rom_unlock(ha);
2603        return ret;
2604}
2605
2606static int
2607qla82xx_protect_flash(struct qla_hw_data *ha)
2608{
2609        int ret;
2610        uint32_t val;
2611        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2612
2613        ret = ql82xx_rom_lock_d(ha);
2614        if (ret < 0) {
2615                ql_log(ql_log_warn, vha, 0xb016,
2616                    "ROM Lock failed.\n");
2617                return ret;
2618        }
2619
2620        ret = qla82xx_read_status_reg(ha, &val);
2621        if (ret < 0)
2622                goto done_protect;
2623
2624        val |= (BLOCK_PROTECT_BITS << 2);
2625        /* LOCK all sectors */
2626        ret = qla82xx_write_status_reg(ha, val);
2627        if (ret < 0)
2628                ql_log(ql_log_warn, vha, 0xb017,
2629                    "Write status register failed.\n");
2630
2631        if (qla82xx_write_disable_flash(ha) != 0)
2632                ql_log(ql_log_warn, vha, 0xb018,
2633                    "Write disable failed.\n");
2634done_protect:
2635        qla82xx_rom_unlock(ha);
2636        return ret;
2637}
2638
2639static int
2640qla82xx_erase_sector(struct qla_hw_data *ha, int addr)
2641{
2642        int ret = 0;
2643        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2644
2645        ret = ql82xx_rom_lock_d(ha);
2646        if (ret < 0) {
2647                ql_log(ql_log_warn, vha, 0xb019,
2648                    "ROM Lock failed.\n");
2649                return ret;
2650        }
2651
2652        qla82xx_flash_set_write_enable(ha);
2653        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ADDRESS, addr);
2654        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 3);
2655        qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_SE);
2656
2657        if (qla82xx_wait_rom_done(ha)) {
2658                ql_log(ql_log_warn, vha, 0xb01a,
2659                    "Error waiting for rom done.\n");
2660                ret = -1;
2661                goto done;
2662        }
2663        ret = qla82xx_flash_wait_write_finish(ha);
2664done:
2665        qla82xx_rom_unlock(ha);
2666        return ret;
2667}
2668
2669/*
2670 * Address and length are byte address
2671 */
2672void *
2673qla82xx_read_optrom_data(struct scsi_qla_host *vha, void *buf,
2674        uint32_t offset, uint32_t length)
2675{
2676        scsi_block_requests(vha->host);
2677        qla82xx_read_flash_data(vha, (uint32_t *)buf, offset, length);
2678        scsi_unblock_requests(vha->host);
2679        return buf;
2680}
2681
2682static int
2683qla82xx_write_flash_data(struct scsi_qla_host *vha, uint32_t *dwptr,
2684        uint32_t faddr, uint32_t dwords)
2685{
2686        int ret;
2687        uint32_t liter;
2688        uint32_t rest_addr;
2689        dma_addr_t optrom_dma;
2690        void *optrom = NULL;
2691        int page_mode = 0;
2692        struct qla_hw_data *ha = vha->hw;
2693
2694        ret = -1;
2695
2696        /* Prepare burst-capable write on supported ISPs. */
2697        if (page_mode && !(faddr & 0xfff) &&
2698            dwords > OPTROM_BURST_DWORDS) {
2699                optrom = dma_alloc_coherent(&ha->pdev->dev, OPTROM_BURST_SIZE,
2700                    &optrom_dma, GFP_KERNEL);
2701                if (!optrom) {
2702                        ql_log(ql_log_warn, vha, 0xb01b,
2703                            "Unable to allocate memory "
2704                            "for optrom burst write (%x KB).\n",
2705                            OPTROM_BURST_SIZE / 1024);
2706                }
2707        }
2708
2709        rest_addr = ha->fdt_block_size - 1;
2710
2711        ret = qla82xx_unprotect_flash(ha);
2712        if (ret) {
2713                ql_log(ql_log_warn, vha, 0xb01c,
2714                    "Unable to unprotect flash for update.\n");
2715                goto write_done;
2716        }
2717
2718        for (liter = 0; liter < dwords; liter++, faddr += 4, dwptr++) {
2719                /* Are we at the beginning of a sector? */
2720                if ((faddr & rest_addr) == 0) {
2721
2722                        ret = qla82xx_erase_sector(ha, faddr);
2723                        if (ret) {
2724                                ql_log(ql_log_warn, vha, 0xb01d,
2725                                    "Unable to erase sector: address=%x.\n",
2726                                    faddr);
2727                                break;
2728                        }
2729                }
2730
2731                /* Go with burst-write. */
2732                if (optrom && (liter + OPTROM_BURST_DWORDS) <= dwords) {
2733                        /* Copy data to DMA'ble buffer. */
2734                        memcpy(optrom, dwptr, OPTROM_BURST_SIZE);
2735
2736                        ret = qla2x00_load_ram(vha, optrom_dma,
2737                            (ha->flash_data_off | faddr),
2738                            OPTROM_BURST_DWORDS);
2739                        if (ret != QLA_SUCCESS) {
2740                                ql_log(ql_log_warn, vha, 0xb01e,
2741                                    "Unable to burst-write optrom segment "
2742                                    "(%x/%x/%llx).\n", ret,
2743                                    (ha->flash_data_off | faddr),
2744                                    (unsigned long long)optrom_dma);
2745                                ql_log(ql_log_warn, vha, 0xb01f,
2746                                    "Reverting to slow-write.\n");
2747
2748                                dma_free_coherent(&ha->pdev->dev,
2749                                    OPTROM_BURST_SIZE, optrom, optrom_dma);
2750                                optrom = NULL;
2751                        } else {
2752                                liter += OPTROM_BURST_DWORDS - 1;
2753                                faddr += OPTROM_BURST_DWORDS - 1;
2754                                dwptr += OPTROM_BURST_DWORDS - 1;
2755                                continue;
2756                        }
2757                }
2758
2759                ret = qla82xx_write_flash_dword(ha, faddr,
2760                    cpu_to_le32(*dwptr));
2761                if (ret) {
2762                        ql_dbg(ql_dbg_p3p, vha, 0xb020,
2763                            "Unable to program flash address=%x data=%x.\n",
2764                            faddr, *dwptr);
2765                        break;
2766                }
2767        }
2768
2769        ret = qla82xx_protect_flash(ha);
2770        if (ret)
2771                ql_log(ql_log_warn, vha, 0xb021,
2772                    "Unable to protect flash after update.\n");
2773write_done:
2774        if (optrom)
2775                dma_free_coherent(&ha->pdev->dev,
2776                    OPTROM_BURST_SIZE, optrom, optrom_dma);
2777        return ret;
2778}
2779
2780int
2781qla82xx_write_optrom_data(struct scsi_qla_host *vha, void *buf,
2782        uint32_t offset, uint32_t length)
2783{
2784        int rval;
2785
2786        /* Suspend HBA. */
2787        scsi_block_requests(vha->host);
2788        rval = qla82xx_write_flash_data(vha, buf, offset, length >> 2);
2789        scsi_unblock_requests(vha->host);
2790
2791        /* Convert return ISP82xx to generic */
2792        if (rval)
2793                rval = QLA_FUNCTION_FAILED;
2794        else
2795                rval = QLA_SUCCESS;
2796        return rval;
2797}
2798
2799void
2800qla82xx_start_iocbs(scsi_qla_host_t *vha)
2801{
2802        struct qla_hw_data *ha = vha->hw;
2803        struct req_que *req = ha->req_q_map[0];
2804        uint32_t dbval;
2805
2806        /* Adjust ring index. */
2807        req->ring_index++;
2808        if (req->ring_index == req->length) {
2809                req->ring_index = 0;
2810                req->ring_ptr = req->ring;
2811        } else
2812                req->ring_ptr++;
2813
2814        dbval = 0x04 | (ha->portnum << 5);
2815
2816        dbval = dbval | (req->id << 8) | (req->ring_index << 16);
2817        if (ql2xdbwr)
2818                qla82xx_wr_32(ha, (unsigned long)ha->nxdb_wr_ptr, dbval);
2819        else {
2820                WRT_REG_DWORD(ha->nxdb_wr_ptr, dbval);
2821                wmb();
2822                while (RD_REG_DWORD(ha->nxdb_rd_ptr) != dbval) {
2823                        WRT_REG_DWORD(ha->nxdb_wr_ptr, dbval);
2824                        wmb();
2825                }
2826        }
2827}
2828
2829static void
2830qla82xx_rom_lock_recovery(struct qla_hw_data *ha)
2831{
2832        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2833        uint32_t lock_owner = 0;
2834
2835        if (qla82xx_rom_lock(ha)) {
2836                lock_owner = qla82xx_rd_32(ha, QLA82XX_ROM_LOCK_ID);
2837                /* Someone else is holding the lock. */
2838                ql_log(ql_log_info, vha, 0xb022,
2839                    "Resetting rom_lock, Lock Owner %u.\n", lock_owner);
2840        }
2841        /*
2842         * Either we got the lock, or someone
2843         * else died while holding it.
2844         * In either case, unlock.
2845         */
2846        qla82xx_rom_unlock(ha);
2847}
2848
2849/*
2850 * qla82xx_device_bootstrap
2851 *    Initialize device, set DEV_READY, start fw
2852 *
2853 * Note:
2854 *      IDC lock must be held upon entry
2855 *
2856 * Return:
2857 *    Success : 0
2858 *    Failed  : 1
2859 */
2860static int
2861qla82xx_device_bootstrap(scsi_qla_host_t *vha)
2862{
2863        int rval = QLA_SUCCESS;
2864        int i;
2865        uint32_t old_count, count;
2866        struct qla_hw_data *ha = vha->hw;
2867        int need_reset = 0;
2868
2869        need_reset = qla82xx_need_reset(ha);
2870
2871        if (need_reset) {
2872                /* We are trying to perform a recovery here. */
2873                if (ha->flags.isp82xx_fw_hung)
2874                        qla82xx_rom_lock_recovery(ha);
2875        } else  {
2876                old_count = qla82xx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER);
2877                for (i = 0; i < 10; i++) {
2878                        msleep(200);
2879                        count = qla82xx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER);
2880                        if (count != old_count) {
2881                                rval = QLA_SUCCESS;
2882                                goto dev_ready;
2883                        }
2884                }
2885                qla82xx_rom_lock_recovery(ha);
2886        }
2887
2888        /* set to DEV_INITIALIZING */
2889        ql_log(ql_log_info, vha, 0x009e,
2890            "HW State: INITIALIZING.\n");
2891        qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_INITIALIZING);
2892
2893        qla82xx_idc_unlock(ha);
2894        rval = qla82xx_start_firmware(vha);
2895        qla82xx_idc_lock(ha);
2896
2897        if (rval != QLA_SUCCESS) {
2898                ql_log(ql_log_fatal, vha, 0x00ad,
2899                    "HW State: FAILED.\n");
2900                qla82xx_clear_drv_active(ha);
2901                qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_FAILED);
2902                return rval;
2903        }
2904
2905dev_ready:
2906        ql_log(ql_log_info, vha, 0x00ae,
2907            "HW State: READY.\n");
2908        qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_READY);
2909
2910        return QLA_SUCCESS;
2911}
2912
2913/*
2914* qla82xx_need_qsnt_handler
2915*    Code to start quiescence sequence
2916*
2917* Note:
2918*      IDC lock must be held upon entry
2919*
2920* Return: void
2921*/
2922
2923static void
2924qla82xx_need_qsnt_handler(scsi_qla_host_t *vha)
2925{
2926        struct qla_hw_data *ha = vha->hw;
2927        uint32_t dev_state, drv_state, drv_active;
2928        unsigned long reset_timeout;
2929
2930        if (vha->flags.online) {
2931                /*Block any further I/O and wait for pending cmnds to complete*/
2932                qla2x00_quiesce_io(vha);
2933        }
2934
2935        /* Set the quiescence ready bit */
2936        qla82xx_set_qsnt_ready(ha);
2937
2938        /*wait for 30 secs for other functions to ack */
2939        reset_timeout = jiffies + (30 * HZ);
2940
2941        drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2942        drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2943        /* Its 2 that is written when qsnt is acked, moving one bit */
2944        drv_active = drv_active << 0x01;
2945
2946        while (drv_state != drv_active) {
2947
2948                if (time_after_eq(jiffies, reset_timeout)) {
2949                        /* quiescence timeout, other functions didn't ack
2950                         * changing the state to DEV_READY
2951                         */
2952                        ql_log(ql_log_info, vha, 0xb023,
2953                            "%s : QUIESCENT TIMEOUT DRV_ACTIVE:%d "
2954                            "DRV_STATE:%d.\n", QLA2XXX_DRIVER_NAME,
2955                            drv_active, drv_state);
2956                        qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
2957                            QLA8XXX_DEV_READY);
2958                        ql_log(ql_log_info, vha, 0xb025,
2959                            "HW State: DEV_READY.\n");
2960                        qla82xx_idc_unlock(ha);
2961                        qla2x00_perform_loop_resync(vha);
2962                        qla82xx_idc_lock(ha);
2963
2964                        qla82xx_clear_qsnt_ready(vha);
2965                        return;
2966                }
2967
2968                qla82xx_idc_unlock(ha);
2969                msleep(1000);
2970                qla82xx_idc_lock(ha);
2971
2972                drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2973                drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2974                drv_active = drv_active << 0x01;
2975        }
2976        dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
2977        /* everyone acked so set the state to DEV_QUIESCENCE */
2978        if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT) {
2979                ql_log(ql_log_info, vha, 0xb026,
2980                    "HW State: DEV_QUIESCENT.\n");
2981                qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_QUIESCENT);
2982        }
2983}
2984
2985/*
2986* qla82xx_wait_for_state_change
2987*    Wait for device state to change from given current state
2988*
2989* Note:
2990*     IDC lock must not be held upon entry
2991*
2992* Return:
2993*    Changed device state.
2994*/
2995uint32_t
2996qla82xx_wait_for_state_change(scsi_qla_host_t *vha, uint32_t curr_state)
2997{
2998        struct qla_hw_data *ha = vha->hw;
2999        uint32_t dev_state;
3000
3001        do {
3002                msleep(1000);
3003                qla82xx_idc_lock(ha);
3004                dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3005                qla82xx_idc_unlock(ha);
3006        } while (dev_state == curr_state);
3007
3008        return dev_state;
3009}
3010
3011void
3012qla8xxx_dev_failed_handler(scsi_qla_host_t *vha)
3013{
3014        struct qla_hw_data *ha = vha->hw;
3015
3016        /* Disable the board */
3017        ql_log(ql_log_fatal, vha, 0x00b8,
3018            "Disabling the board.\n");
3019
3020        if (IS_QLA82XX(ha)) {
3021                qla82xx_clear_drv_active(ha);
3022                qla82xx_idc_unlock(ha);
3023        } else if (IS_QLA8044(ha)) {
3024                qla8044_clear_drv_active(ha);
3025                qla8044_idc_unlock(ha);
3026        }
3027
3028        /* Set DEV_FAILED flag to disable timer */
3029        vha->device_flags |= DFLG_DEV_FAILED;
3030        qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
3031        qla2x00_mark_all_devices_lost(vha, 0);
3032        vha->flags.online = 0;
3033        vha->flags.init_done = 0;
3034}
3035
3036/*
3037 * qla82xx_need_reset_handler
3038 *    Code to start reset sequence
3039 *
3040 * Note:
3041 *      IDC lock must be held upon entry
3042 *
3043 * Return:
3044 *    Success : 0
3045 *    Failed  : 1
3046 */
3047static void
3048qla82xx_need_reset_handler(scsi_qla_host_t *vha)
3049{
3050        uint32_t dev_state, drv_state, drv_active;
3051        uint32_t active_mask = 0;
3052        unsigned long reset_timeout;
3053        struct qla_hw_data *ha = vha->hw;
3054        struct req_que *req = ha->req_q_map[0];
3055
3056        if (vha->flags.online) {
3057                qla82xx_idc_unlock(ha);
3058                qla2x00_abort_isp_cleanup(vha);
3059                ha->isp_ops->get_flash_version(vha, req->ring);
3060                ha->isp_ops->nvram_config(vha);
3061                qla82xx_idc_lock(ha);
3062        }
3063
3064        drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3065        if (!ha->flags.nic_core_reset_owner) {
3066                ql_dbg(ql_dbg_p3p, vha, 0xb028,
3067                    "reset_acknowledged by 0x%x\n", ha->portnum);
3068                qla82xx_set_rst_ready(ha);
3069        } else {
3070                active_mask = ~(QLA82XX_DRV_ACTIVE << (ha->portnum * 4));
3071                drv_active &= active_mask;
3072                ql_dbg(ql_dbg_p3p, vha, 0xb029,
3073                    "active_mask: 0x%08x\n", active_mask);
3074        }
3075
3076        /* wait for 10 seconds for reset ack from all functions */
3077        reset_timeout = jiffies + (ha->fcoe_reset_timeout * HZ);
3078
3079        drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
3080        drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3081        dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3082
3083        ql_dbg(ql_dbg_p3p, vha, 0xb02a,
3084            "drv_state: 0x%08x, drv_active: 0x%08x, "
3085            "dev_state: 0x%08x, active_mask: 0x%08x\n",
3086            drv_state, drv_active, dev_state, active_mask);
3087
3088        while (drv_state != drv_active &&
3089            dev_state != QLA8XXX_DEV_INITIALIZING) {
3090                if (time_after_eq(jiffies, reset_timeout)) {
3091                        ql_log(ql_log_warn, vha, 0x00b5,
3092                            "Reset timeout.\n");
3093                        break;
3094                }
3095                qla82xx_idc_unlock(ha);
3096                msleep(1000);
3097                qla82xx_idc_lock(ha);
3098                drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
3099                drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3100                if (ha->flags.nic_core_reset_owner)
3101                        drv_active &= active_mask;
3102                dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3103        }
3104
3105        ql_dbg(ql_dbg_p3p, vha, 0xb02b,
3106            "drv_state: 0x%08x, drv_active: 0x%08x, "
3107            "dev_state: 0x%08x, active_mask: 0x%08x\n",
3108            drv_state, drv_active, dev_state, active_mask);
3109
3110        ql_log(ql_log_info, vha, 0x00b6,
3111            "Device state is 0x%x = %s.\n",
3112            dev_state,
3113            dev_state < MAX_STATES ? qdev_state(dev_state) : "Unknown");
3114
3115        /* Force to DEV_COLD unless someone else is starting a reset */
3116        if (dev_state != QLA8XXX_DEV_INITIALIZING &&
3117            dev_state != QLA8XXX_DEV_COLD) {
3118                ql_log(ql_log_info, vha, 0x00b7,
3119                    "HW State: COLD/RE-INIT.\n");
3120                qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_COLD);
3121                qla82xx_set_rst_ready(ha);
3122                if (ql2xmdenable) {
3123                        if (qla82xx_md_collect(vha))
3124                                ql_log(ql_log_warn, vha, 0xb02c,
3125                                    "Minidump not collected.\n");
3126                } else
3127                        ql_log(ql_log_warn, vha, 0xb04f,
3128                            "Minidump disabled.\n");
3129        }
3130}
3131
3132int
3133qla82xx_check_md_needed(scsi_qla_host_t *vha)
3134{
3135        struct qla_hw_data *ha = vha->hw;
3136        uint16_t fw_major_version, fw_minor_version, fw_subminor_version;
3137        int rval = QLA_SUCCESS;
3138
3139        fw_major_version = ha->fw_major_version;
3140        fw_minor_version = ha->fw_minor_version;
3141        fw_subminor_version = ha->fw_subminor_version;
3142
3143        rval = qla2x00_get_fw_version(vha);
3144        if (rval != QLA_SUCCESS)
3145                return rval;
3146
3147        if (ql2xmdenable) {
3148                if (!ha->fw_dumped) {
3149                        if ((fw_major_version != ha->fw_major_version ||
3150                            fw_minor_version != ha->fw_minor_version ||
3151                            fw_subminor_version != ha->fw_subminor_version) ||
3152                            (ha->prev_minidump_failed)) {
3153                                ql_dbg(ql_dbg_p3p, vha, 0xb02d,
3154                                    "Firmware version differs Previous version: %d:%d:%d - New version: %d:%d:%d, prev_minidump_failed: %d.\n",
3155                                    fw_major_version, fw_minor_version,
3156                                    fw_subminor_version,
3157                                    ha->fw_major_version,
3158                                    ha->fw_minor_version,
3159                                    ha->fw_subminor_version,
3160                                    ha->prev_minidump_failed);
3161                                /* Release MiniDump resources */
3162                                qla82xx_md_free(vha);
3163                                /* ALlocate MiniDump resources */
3164                                qla82xx_md_prep(vha);
3165                        }
3166                } else
3167                        ql_log(ql_log_info, vha, 0xb02e,
3168                            "Firmware dump available to retrieve\n");
3169        }
3170        return rval;
3171}
3172
3173
3174static int
3175qla82xx_check_fw_alive(scsi_qla_host_t *vha)
3176{
3177        uint32_t fw_heartbeat_counter;
3178        int status = 0;
3179
3180        fw_heartbeat_counter = qla82xx_rd_32(vha->hw,
3181                QLA82XX_PEG_ALIVE_COUNTER);
3182        /* all 0xff, assume AER/EEH in progress, ignore */
3183        if (fw_heartbeat_counter == 0xffffffff) {
3184                ql_dbg(ql_dbg_timer, vha, 0x6003,
3185                    "FW heartbeat counter is 0xffffffff, "
3186                    "returning status=%d.\n", status);
3187                return status;
3188        }
3189        if (vha->fw_heartbeat_counter == fw_heartbeat_counter) {
3190                vha->seconds_since_last_heartbeat++;
3191                /* FW not alive after 2 seconds */
3192                if (vha->seconds_since_last_heartbeat == 2) {
3193                        vha->seconds_since_last_heartbeat = 0;
3194                        status = 1;
3195                }
3196        } else
3197                vha->seconds_since_last_heartbeat = 0;
3198        vha->fw_heartbeat_counter = fw_heartbeat_counter;
3199        if (status)
3200                ql_dbg(ql_dbg_timer, vha, 0x6004,
3201                    "Returning status=%d.\n", status);
3202        return status;
3203}
3204
3205/*
3206 * qla82xx_device_state_handler
3207 *      Main state handler
3208 *
3209 * Note:
3210 *      IDC lock must be held upon entry
3211 *
3212 * Return:
3213 *    Success : 0
3214 *    Failed  : 1
3215 */
3216int
3217qla82xx_device_state_handler(scsi_qla_host_t *vha)
3218{
3219        uint32_t dev_state;
3220        uint32_t old_dev_state;
3221        int rval = QLA_SUCCESS;
3222        unsigned long dev_init_timeout;
3223        struct qla_hw_data *ha = vha->hw;
3224        int loopcount = 0;
3225
3226        qla82xx_idc_lock(ha);
3227        if (!vha->flags.init_done) {
3228                qla82xx_set_drv_active(vha);
3229                qla82xx_set_idc_version(vha);
3230        }
3231
3232        dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3233        old_dev_state = dev_state;
3234        ql_log(ql_log_info, vha, 0x009b,
3235            "Device state is 0x%x = %s.\n",
3236            dev_state,
3237            dev_state < MAX_STATES ? qdev_state(dev_state) : "Unknown");
3238
3239        /* wait for 30 seconds for device to go ready */
3240        dev_init_timeout = jiffies + (ha->fcoe_dev_init_timeout * HZ);
3241
3242        while (1) {
3243
3244                if (time_after_eq(jiffies, dev_init_timeout)) {
3245                        ql_log(ql_log_fatal, vha, 0x009c,
3246                            "Device init failed.\n");
3247                        rval = QLA_FUNCTION_FAILED;
3248                        break;
3249                }
3250                dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3251                if (old_dev_state != dev_state) {
3252                        loopcount = 0;
3253                        old_dev_state = dev_state;
3254                }
3255                if (loopcount < 5) {
3256                        ql_log(ql_log_info, vha, 0x009d,
3257                            "Device state is 0x%x = %s.\n",
3258                            dev_state,
3259                            dev_state < MAX_STATES ? qdev_state(dev_state) :
3260                            "Unknown");
3261                }
3262
3263                switch (dev_state) {
3264                case QLA8XXX_DEV_READY:
3265                        ha->flags.nic_core_reset_owner = 0;
3266                        goto rel_lock;
3267                case QLA8XXX_DEV_COLD:
3268                        rval = qla82xx_device_bootstrap(vha);
3269                        break;
3270                case QLA8XXX_DEV_INITIALIZING:
3271                        qla82xx_idc_unlock(ha);
3272                        msleep(1000);
3273                        qla82xx_idc_lock(ha);
3274                        break;
3275                case QLA8XXX_DEV_NEED_RESET:
3276                        if (!ql2xdontresethba)
3277                                qla82xx_need_reset_handler(vha);
3278                        else {
3279                                qla82xx_idc_unlock(ha);
3280                                msleep(1000);
3281                                qla82xx_idc_lock(ha);
3282                        }
3283                        dev_init_timeout = jiffies +
3284                            (ha->fcoe_dev_init_timeout * HZ);
3285                        break;
3286                case QLA8XXX_DEV_NEED_QUIESCENT:
3287                        qla82xx_need_qsnt_handler(vha);
3288                        /* Reset timeout value after quiescence handler */
3289                        dev_init_timeout = jiffies + (ha->fcoe_dev_init_timeout\
3290                                                         * HZ);
3291                        break;
3292                case QLA8XXX_DEV_QUIESCENT:
3293                        /* Owner will exit and other will wait for the state
3294                         * to get changed
3295                         */
3296                        if (ha->flags.quiesce_owner)
3297                                goto rel_lock;
3298
3299                        qla82xx_idc_unlock(ha);
3300                        msleep(1000);
3301                        qla82xx_idc_lock(ha);
3302
3303                        /* Reset timeout value after quiescence handler */
3304                        dev_init_timeout = jiffies + (ha->fcoe_dev_init_timeout\
3305                                                         * HZ);
3306                        break;
3307                case QLA8XXX_DEV_FAILED:
3308                        qla8xxx_dev_failed_handler(vha);
3309                        rval = QLA_FUNCTION_FAILED;
3310                        goto exit;
3311                default:
3312                        qla82xx_idc_unlock(ha);
3313                        msleep(1000);
3314                        qla82xx_idc_lock(ha);
3315                }
3316                loopcount++;
3317        }
3318rel_lock:
3319        qla82xx_idc_unlock(ha);
3320exit:
3321        return rval;
3322}
3323
3324static int qla82xx_check_temp(scsi_qla_host_t *vha)
3325{
3326        uint32_t temp, temp_state, temp_val;
3327        struct qla_hw_data *ha = vha->hw;
3328
3329        temp = qla82xx_rd_32(ha, CRB_TEMP_STATE);
3330        temp_state = qla82xx_get_temp_state(temp);
3331        temp_val = qla82xx_get_temp_val(temp);
3332
3333        if (temp_state == QLA82XX_TEMP_PANIC) {
3334                ql_log(ql_log_warn, vha, 0x600e,
3335                    "Device temperature %d degrees C exceeds "
3336                    " maximum allowed. Hardware has been shut down.\n",
3337                    temp_val);
3338                return 1;
3339        } else if (temp_state == QLA82XX_TEMP_WARN) {
3340                ql_log(ql_log_warn, vha, 0x600f,
3341                    "Device temperature %d degrees C exceeds "
3342                    "operating range. Immediate action needed.\n",
3343                    temp_val);
3344        }
3345        return 0;
3346}
3347
3348int qla82xx_read_temperature(scsi_qla_host_t *vha)
3349{
3350        uint32_t temp;
3351
3352        temp = qla82xx_rd_32(vha->hw, CRB_TEMP_STATE);
3353        return qla82xx_get_temp_val(temp);
3354}
3355
3356void qla82xx_clear_pending_mbx(scsi_qla_host_t *vha)
3357{
3358        struct qla_hw_data *ha = vha->hw;
3359
3360        if (ha->flags.mbox_busy) {
3361                ha->flags.mbox_int = 1;
3362                ha->flags.mbox_busy = 0;
3363                ql_log(ql_log_warn, vha, 0x6010,
3364                    "Doing premature completion of mbx command.\n");
3365                if (test_and_clear_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags))
3366                        complete(&ha->mbx_intr_comp);
3367        }
3368}
3369
3370void qla82xx_watchdog(scsi_qla_host_t *vha)
3371{
3372        uint32_t dev_state, halt_status;
3373        struct qla_hw_data *ha = vha->hw;
3374
3375        /* don't poll if reset is going on */
3376        if (!ha->flags.nic_core_reset_hdlr_active) {
3377                dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3378                if (qla82xx_check_temp(vha)) {
3379                        set_bit(ISP_UNRECOVERABLE, &vha->dpc_flags);
3380                        ha->flags.isp82xx_fw_hung = 1;
3381                        qla82xx_clear_pending_mbx(vha);
3382                } else if (dev_state == QLA8XXX_DEV_NEED_RESET &&
3383                    !test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags)) {
3384                        ql_log(ql_log_warn, vha, 0x6001,
3385                            "Adapter reset needed.\n");
3386                        set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3387                } else if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT &&
3388                        !test_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags)) {
3389                        ql_log(ql_log_warn, vha, 0x6002,
3390                            "Quiescent needed.\n");
3391                        set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
3392                } else if (dev_state == QLA8XXX_DEV_FAILED &&
3393                        !test_bit(ISP_UNRECOVERABLE, &vha->dpc_flags) &&
3394                        vha->flags.online == 1) {
3395                        ql_log(ql_log_warn, vha, 0xb055,
3396                            "Adapter state is failed. Offlining.\n");
3397                        set_bit(ISP_UNRECOVERABLE, &vha->dpc_flags);
3398                        ha->flags.isp82xx_fw_hung = 1;
3399                        qla82xx_clear_pending_mbx(vha);
3400                } else {
3401                        if (qla82xx_check_fw_alive(vha)) {
3402                                ql_dbg(ql_dbg_timer, vha, 0x6011,
3403                                    "disabling pause transmit on port 0 & 1.\n");
3404                                qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
3405                                    CRB_NIU_XG_PAUSE_CTL_P0|CRB_NIU_XG_PAUSE_CTL_P1);
3406                                halt_status = qla82xx_rd_32(ha,
3407                                    QLA82XX_PEG_HALT_STATUS1);
3408                                ql_log(ql_log_info, vha, 0x6005,
3409                                    "dumping hw/fw registers:.\n "
3410                                    " PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,.\n "
3411                                    " PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,.\n "
3412                                    " PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,.\n "
3413                                    " PEG_NET_4_PC: 0x%x.\n", halt_status,
3414                                    qla82xx_rd_32(ha, QLA82XX_PEG_HALT_STATUS2),
3415                                    qla82xx_rd_32(ha,
3416                                            QLA82XX_CRB_PEG_NET_0 + 0x3c),
3417                                    qla82xx_rd_32(ha,
3418                                            QLA82XX_CRB_PEG_NET_1 + 0x3c),
3419                                    qla82xx_rd_32(ha,
3420                                            QLA82XX_CRB_PEG_NET_2 + 0x3c),
3421                                    qla82xx_rd_32(ha,
3422                                            QLA82XX_CRB_PEG_NET_3 + 0x3c),
3423                                    qla82xx_rd_32(ha,
3424                                            QLA82XX_CRB_PEG_NET_4 + 0x3c));
3425                                if (((halt_status & 0x1fffff00) >> 8) == 0x67)
3426                                        ql_log(ql_log_warn, vha, 0xb052,
3427                                            "Firmware aborted with "
3428                                            "error code 0x00006700. Device is "
3429                                            "being reset.\n");
3430                                if (halt_status & HALT_STATUS_UNRECOVERABLE) {
3431                                        set_bit(ISP_UNRECOVERABLE,
3432                                            &vha->dpc_flags);
3433                                } else {
3434                                        ql_log(ql_log_info, vha, 0x6006,
3435                                            "Detect abort  needed.\n");
3436                                        set_bit(ISP_ABORT_NEEDED,
3437                                            &vha->dpc_flags);
3438                                }
3439                                ha->flags.isp82xx_fw_hung = 1;
3440                                ql_log(ql_log_warn, vha, 0x6007, "Firmware hung.\n");
3441                                qla82xx_clear_pending_mbx(vha);
3442                        }
3443                }
3444        }
3445}
3446
3447int qla82xx_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
3448{
3449        int rval = -1;
3450        struct qla_hw_data *ha = vha->hw;
3451
3452        if (IS_QLA82XX(ha))
3453                rval = qla82xx_device_state_handler(vha);
3454        else if (IS_QLA8044(ha)) {
3455                qla8044_idc_lock(ha);
3456                /* Decide the reset ownership */
3457                qla83xx_reset_ownership(vha);
3458                qla8044_idc_unlock(ha);
3459                rval = qla8044_device_state_handler(vha);
3460        }
3461        return rval;
3462}
3463
3464void
3465qla82xx_set_reset_owner(scsi_qla_host_t *vha)
3466{
3467        struct qla_hw_data *ha = vha->hw;
3468        uint32_t dev_state = 0;
3469
3470        if (IS_QLA82XX(ha))
3471                dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3472        else if (IS_QLA8044(ha))
3473                dev_state = qla8044_rd_direct(vha, QLA8044_CRB_DEV_STATE_INDEX);
3474
3475        if (dev_state == QLA8XXX_DEV_READY) {
3476                ql_log(ql_log_info, vha, 0xb02f,
3477                    "HW State: NEED RESET\n");
3478                if (IS_QLA82XX(ha)) {
3479                        qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3480                            QLA8XXX_DEV_NEED_RESET);
3481                        ha->flags.nic_core_reset_owner = 1;
3482                        ql_dbg(ql_dbg_p3p, vha, 0xb030,
3483                            "reset_owner is 0x%x\n", ha->portnum);
3484                } else if (IS_QLA8044(ha))
3485                        qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX,
3486                            QLA8XXX_DEV_NEED_RESET);
3487        } else
3488                ql_log(ql_log_info, vha, 0xb031,
3489                    "Device state is 0x%x = %s.\n",
3490                    dev_state,
3491                    dev_state < MAX_STATES ? qdev_state(dev_state) : "Unknown");
3492}
3493
3494/*
3495 *  qla82xx_abort_isp
3496 *      Resets ISP and aborts all outstanding commands.
3497 *
3498 * Input:
3499 *      ha           = adapter block pointer.
3500 *
3501 * Returns:
3502 *      0 = success
3503 */
3504int
3505qla82xx_abort_isp(scsi_qla_host_t *vha)
3506{
3507        int rval = -1;
3508        struct qla_hw_data *ha = vha->hw;
3509
3510        if (vha->device_flags & DFLG_DEV_FAILED) {
3511                ql_log(ql_log_warn, vha, 0x8024,
3512                    "Device in failed state, exiting.\n");
3513                return QLA_SUCCESS;
3514        }
3515        ha->flags.nic_core_reset_hdlr_active = 1;
3516
3517        qla82xx_idc_lock(ha);
3518        qla82xx_set_reset_owner(vha);
3519        qla82xx_idc_unlock(ha);
3520
3521        if (IS_QLA82XX(ha))
3522                rval = qla82xx_device_state_handler(vha);
3523        else if (IS_QLA8044(ha)) {
3524                qla8044_idc_lock(ha);
3525                /* Decide the reset ownership */
3526                qla83xx_reset_ownership(vha);
3527                qla8044_idc_unlock(ha);
3528                rval = qla8044_device_state_handler(vha);
3529        }
3530
3531        qla82xx_idc_lock(ha);
3532        qla82xx_clear_rst_ready(ha);
3533        qla82xx_idc_unlock(ha);
3534
3535        if (rval == QLA_SUCCESS) {
3536                ha->flags.isp82xx_fw_hung = 0;
3537                ha->flags.nic_core_reset_hdlr_active = 0;
3538                qla82xx_restart_isp(vha);
3539        }
3540
3541        if (rval) {
3542                vha->flags.online = 1;
3543                if (test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
3544                        if (ha->isp_abort_cnt == 0) {
3545                                ql_log(ql_log_warn, vha, 0x8027,
3546                                    "ISP error recover failed - board "
3547                                    "disabled.\n");
3548                                /*
3549                                 * The next call disables the board
3550                                 * completely.
3551                                 */
3552                                ha->isp_ops->reset_adapter(vha);
3553                                vha->flags.online = 0;
3554                                clear_bit(ISP_ABORT_RETRY,
3555                                    &vha->dpc_flags);
3556                                rval = QLA_SUCCESS;
3557                        } else { /* schedule another ISP abort */
3558                                ha->isp_abort_cnt--;
3559                                ql_log(ql_log_warn, vha, 0x8036,
3560                                    "ISP abort - retry remaining %d.\n",
3561                                    ha->isp_abort_cnt);
3562                                rval = QLA_FUNCTION_FAILED;
3563                        }
3564                } else {
3565                        ha->isp_abort_cnt = MAX_RETRIES_OF_ISP_ABORT;
3566                        ql_dbg(ql_dbg_taskm, vha, 0x8029,
3567                            "ISP error recovery - retrying (%d) more times.\n",
3568                            ha->isp_abort_cnt);
3569                        set_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
3570                        rval = QLA_FUNCTION_FAILED;
3571                }
3572        }
3573        return rval;
3574}
3575
3576/*
3577 *  qla82xx_fcoe_ctx_reset
3578 *      Perform a quick reset and aborts all outstanding commands.
3579 *      This will only perform an FCoE context reset and avoids a full blown
3580 *      chip reset.
3581 *
3582 * Input:
3583 *      ha = adapter block pointer.
3584 *      is_reset_path = flag for identifying the reset path.
3585 *
3586 * Returns:
3587 *      0 = success
3588 */
3589int qla82xx_fcoe_ctx_reset(scsi_qla_host_t *vha)
3590{
3591        int rval = QLA_FUNCTION_FAILED;
3592
3593        if (vha->flags.online) {
3594                /* Abort all outstanding commands, so as to be requeued later */
3595                qla2x00_abort_isp_cleanup(vha);
3596        }
3597
3598        /* Stop currently executing firmware.
3599         * This will destroy existing FCoE context at the F/W end.
3600         */
3601        qla2x00_try_to_stop_firmware(vha);
3602
3603        /* Restart. Creates a new FCoE context on INIT_FIRMWARE. */
3604        rval = qla82xx_restart_isp(vha);
3605
3606        return rval;
3607}
3608
3609/*
3610 * qla2x00_wait_for_fcoe_ctx_reset
3611 *    Wait till the FCoE context is reset.
3612 *
3613 * Note:
3614 *    Does context switching here.
3615 *    Release SPIN_LOCK (if any) before calling this routine.
3616 *
3617 * Return:
3618 *    Success (fcoe_ctx reset is done) : 0
3619 *    Failed  (fcoe_ctx reset not completed within max loop timout ) : 1
3620 */
3621int qla2x00_wait_for_fcoe_ctx_reset(scsi_qla_host_t *vha)
3622{
3623        int status = QLA_FUNCTION_FAILED;
3624        unsigned long wait_reset;
3625
3626        wait_reset = jiffies + (MAX_LOOP_TIMEOUT * HZ);
3627        while ((test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) ||
3628            test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
3629            && time_before(jiffies, wait_reset)) {
3630
3631                set_current_state(TASK_UNINTERRUPTIBLE);
3632                schedule_timeout(HZ);
3633
3634                if (!test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) &&
3635                    !test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) {
3636                        status = QLA_SUCCESS;
3637                        break;
3638                }
3639        }
3640        ql_dbg(ql_dbg_p3p, vha, 0xb027,
3641               "%s: status=%d.\n", __func__, status);
3642
3643        return status;
3644}
3645
3646void
3647qla82xx_chip_reset_cleanup(scsi_qla_host_t *vha)
3648{
3649        int i, fw_state = 0;
3650        unsigned long flags;
3651        struct qla_hw_data *ha = vha->hw;
3652
3653        /* Check if 82XX firmware is alive or not
3654         * We may have arrived here from NEED_RESET
3655         * detection only
3656         */
3657        if (!ha->flags.isp82xx_fw_hung) {
3658                for (i = 0; i < 2; i++) {
3659                        msleep(1000);
3660                        if (IS_QLA82XX(ha))
3661                                fw_state = qla82xx_check_fw_alive(vha);
3662                        else if (IS_QLA8044(ha))
3663                                fw_state = qla8044_check_fw_alive(vha);
3664                        if (fw_state) {
3665                                ha->flags.isp82xx_fw_hung = 1;
3666                                qla82xx_clear_pending_mbx(vha);
3667                                break;
3668                        }
3669                }
3670        }
3671        ql_dbg(ql_dbg_init, vha, 0x00b0,
3672            "Entered %s fw_hung=%d.\n",
3673            __func__, ha->flags.isp82xx_fw_hung);
3674
3675        /* Abort all commands gracefully if fw NOT hung */
3676        if (!ha->flags.isp82xx_fw_hung) {
3677                int cnt, que;
3678                srb_t *sp;
3679                struct req_que *req;
3680
3681                spin_lock_irqsave(&ha->hardware_lock, flags);
3682                for (que = 0; que < ha->max_req_queues; que++) {
3683                        req = ha->req_q_map[que];
3684                        if (!req)
3685                                continue;
3686                        for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++) {
3687                                sp = req->outstanding_cmds[cnt];
3688                                if (sp) {
3689                                        if ((!sp->u.scmd.ctx ||
3690                                            (sp->flags &
3691                                                SRB_FCP_CMND_DMA_VALID)) &&
3692                                                !ha->flags.isp82xx_fw_hung) {
3693                                                spin_unlock_irqrestore(
3694                                                    &ha->hardware_lock, flags);
3695                                                if (ha->isp_ops->abort_command(sp)) {
3696                                                        ql_log(ql_log_info, vha,
3697                                                            0x00b1,
3698                                                            "mbx abort failed.\n");
3699                                                } else {
3700                                                        ql_log(ql_log_info, vha,
3701                                                            0x00b2,
3702                                                            "mbx abort success.\n");
3703                                                }
3704                                                spin_lock_irqsave(&ha->hardware_lock, flags);
3705                                        }
3706                                }
3707                        }
3708                }
3709                spin_unlock_irqrestore(&ha->hardware_lock, flags);
3710
3711                /* Wait for pending cmds (physical and virtual) to complete */
3712                if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0,
3713                    WAIT_HOST)) {
3714                        ql_dbg(ql_dbg_init, vha, 0x00b3,
3715                            "Done wait for "
3716                            "pending commands.\n");
3717                }
3718        }
3719}
3720
3721/* Minidump related functions */
3722static int
3723qla82xx_minidump_process_control(scsi_qla_host_t *vha,
3724        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3725{
3726        struct qla_hw_data *ha = vha->hw;
3727        struct qla82xx_md_entry_crb *crb_entry;
3728        uint32_t read_value, opcode, poll_time;
3729        uint32_t addr, index, crb_addr;
3730        unsigned long wtime;
3731        struct qla82xx_md_template_hdr *tmplt_hdr;
3732        uint32_t rval = QLA_SUCCESS;
3733        int i;
3734
3735        tmplt_hdr = (struct qla82xx_md_template_hdr *)ha->md_tmplt_hdr;
3736        crb_entry = (struct qla82xx_md_entry_crb *)entry_hdr;
3737        crb_addr = crb_entry->addr;
3738
3739        for (i = 0; i < crb_entry->op_count; i++) {
3740                opcode = crb_entry->crb_ctrl.opcode;
3741                if (opcode & QLA82XX_DBG_OPCODE_WR) {
3742                        qla82xx_md_rw_32(ha, crb_addr,
3743                            crb_entry->value_1, 1);
3744                        opcode &= ~QLA82XX_DBG_OPCODE_WR;
3745                }
3746
3747                if (opcode & QLA82XX_DBG_OPCODE_RW) {
3748                        read_value = qla82xx_md_rw_32(ha, crb_addr, 0, 0);
3749                        qla82xx_md_rw_32(ha, crb_addr, read_value, 1);
3750                        opcode &= ~QLA82XX_DBG_OPCODE_RW;
3751                }
3752
3753                if (opcode & QLA82XX_DBG_OPCODE_AND) {
3754                        read_value = qla82xx_md_rw_32(ha, crb_addr, 0, 0);
3755                        read_value &= crb_entry->value_2;
3756                        opcode &= ~QLA82XX_DBG_OPCODE_AND;
3757                        if (opcode & QLA82XX_DBG_OPCODE_OR) {
3758                                read_value |= crb_entry->value_3;
3759                                opcode &= ~QLA82XX_DBG_OPCODE_OR;
3760                        }
3761                        qla82xx_md_rw_32(ha, crb_addr, read_value, 1);
3762                }
3763
3764                if (opcode & QLA82XX_DBG_OPCODE_OR) {
3765                        read_value = qla82xx_md_rw_32(ha, crb_addr, 0, 0);
3766                        read_value |= crb_entry->value_3;
3767                        qla82xx_md_rw_32(ha, crb_addr, read_value, 1);
3768                        opcode &= ~QLA82XX_DBG_OPCODE_OR;
3769                }
3770
3771                if (opcode & QLA82XX_DBG_OPCODE_POLL) {
3772                        poll_time = crb_entry->crb_strd.poll_timeout;
3773                        wtime = jiffies + poll_time;
3774                        read_value = qla82xx_md_rw_32(ha, crb_addr, 0, 0);
3775
3776                        do {
3777                                if ((read_value & crb_entry->value_2)
3778                                    == crb_entry->value_1)
3779                                        break;
3780                                else if (time_after_eq(jiffies, wtime)) {
3781                                        /* capturing dump failed */
3782                                        rval = QLA_FUNCTION_FAILED;
3783                                        break;
3784                                } else
3785                                        read_value = qla82xx_md_rw_32(ha,
3786                                            crb_addr, 0, 0);
3787                        } while (1);
3788                        opcode &= ~QLA82XX_DBG_OPCODE_POLL;
3789                }
3790
3791                if (opcode & QLA82XX_DBG_OPCODE_RDSTATE) {
3792                        if (crb_entry->crb_strd.state_index_a) {
3793                                index = crb_entry->crb_strd.state_index_a;
3794                                addr = tmplt_hdr->saved_state_array[index];
3795                        } else
3796                                addr = crb_addr;
3797
3798                        read_value = qla82xx_md_rw_32(ha, addr, 0, 0);
3799                        index = crb_entry->crb_ctrl.state_index_v;
3800                        tmplt_hdr->saved_state_array[index] = read_value;
3801                        opcode &= ~QLA82XX_DBG_OPCODE_RDSTATE;
3802                }
3803
3804                if (opcode & QLA82XX_DBG_OPCODE_WRSTATE) {
3805                        if (crb_entry->crb_strd.state_index_a) {
3806                                index = crb_entry->crb_strd.state_index_a;
3807                                addr = tmplt_hdr->saved_state_array[index];
3808                        } else
3809                                addr = crb_addr;
3810
3811                        if (crb_entry->crb_ctrl.state_index_v) {
3812                                index = crb_entry->crb_ctrl.state_index_v;
3813                                read_value =
3814                                    tmplt_hdr->saved_state_array[index];
3815                        } else
3816                                read_value = crb_entry->value_1;
3817
3818                        qla82xx_md_rw_32(ha, addr, read_value, 1);
3819                        opcode &= ~QLA82XX_DBG_OPCODE_WRSTATE;
3820                }
3821
3822                if (opcode & QLA82XX_DBG_OPCODE_MDSTATE) {
3823                        index = crb_entry->crb_ctrl.state_index_v;
3824                        read_value = tmplt_hdr->saved_state_array[index];
3825                        read_value <<= crb_entry->crb_ctrl.shl;
3826                        read_value >>= crb_entry->crb_ctrl.shr;
3827                        if (crb_entry->value_2)
3828                                read_value &= crb_entry->value_2;
3829                        read_value |= crb_entry->value_3;
3830                        read_value += crb_entry->value_1;
3831                        tmplt_hdr->saved_state_array[index] = read_value;
3832                        opcode &= ~QLA82XX_DBG_OPCODE_MDSTATE;
3833                }
3834                crb_addr += crb_entry->crb_strd.addr_stride;
3835        }
3836        return rval;
3837}
3838
3839static void
3840qla82xx_minidump_process_rdocm(scsi_qla_host_t *vha,
3841        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3842{
3843        struct qla_hw_data *ha = vha->hw;
3844        uint32_t r_addr, r_stride, loop_cnt, i, r_value;
3845        struct qla82xx_md_entry_rdocm *ocm_hdr;
3846        uint32_t *data_ptr = *d_ptr;
3847
3848        ocm_hdr = (struct qla82xx_md_entry_rdocm *)entry_hdr;
3849        r_addr = ocm_hdr->read_addr;
3850        r_stride = ocm_hdr->read_addr_stride;
3851        loop_cnt = ocm_hdr->op_count;
3852
3853        for (i = 0; i < loop_cnt; i++) {
3854                r_value = RD_REG_DWORD(r_addr + ha->nx_pcibase);
3855                *data_ptr++ = cpu_to_le32(r_value);
3856                r_addr += r_stride;
3857        }
3858        *d_ptr = data_ptr;
3859}
3860
3861static void
3862qla82xx_minidump_process_rdmux(scsi_qla_host_t *vha,
3863        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3864{
3865        struct qla_hw_data *ha = vha->hw;
3866        uint32_t r_addr, s_stride, s_addr, s_value, loop_cnt, i, r_value;
3867        struct qla82xx_md_entry_mux *mux_hdr;
3868        uint32_t *data_ptr = *d_ptr;
3869
3870        mux_hdr = (struct qla82xx_md_entry_mux *)entry_hdr;
3871        r_addr = mux_hdr->read_addr;
3872        s_addr = mux_hdr->select_addr;
3873        s_stride = mux_hdr->select_value_stride;
3874        s_value = mux_hdr->select_value;
3875        loop_cnt = mux_hdr->op_count;
3876
3877        for (i = 0; i < loop_cnt; i++) {
3878                qla82xx_md_rw_32(ha, s_addr, s_value, 1);
3879                r_value = qla82xx_md_rw_32(ha, r_addr, 0, 0);
3880                *data_ptr++ = cpu_to_le32(s_value);
3881                *data_ptr++ = cpu_to_le32(r_value);
3882                s_value += s_stride;
3883        }
3884        *d_ptr = data_ptr;
3885}
3886
3887static void
3888qla82xx_minidump_process_rdcrb(scsi_qla_host_t *vha,
3889        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3890{
3891        struct qla_hw_data *ha = vha->hw;
3892        uint32_t r_addr, r_stride, loop_cnt, i, r_value;
3893        struct qla82xx_md_entry_crb *crb_hdr;
3894        uint32_t *data_ptr = *d_ptr;
3895
3896        crb_hdr = (struct qla82xx_md_entry_crb *)entry_hdr;
3897        r_addr = crb_hdr->addr;
3898        r_stride = crb_hdr->crb_strd.addr_stride;
3899        loop_cnt = crb_hdr->op_count;
3900
3901        for (i = 0; i < loop_cnt; i++) {
3902                r_value = qla82xx_md_rw_32(ha, r_addr, 0, 0);
3903                *data_ptr++ = cpu_to_le32(r_addr);
3904                *data_ptr++ = cpu_to_le32(r_value);
3905                r_addr += r_stride;
3906        }
3907        *d_ptr = data_ptr;
3908}
3909
3910static int
3911qla82xx_minidump_process_l2tag(scsi_qla_host_t *vha,
3912        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3913{
3914        struct qla_hw_data *ha = vha->hw;
3915        uint32_t addr, r_addr, c_addr, t_r_addr;
3916        uint32_t i, k, loop_count, t_value, r_cnt, r_value;
3917        unsigned long p_wait, w_time, p_mask;
3918        uint32_t c_value_w, c_value_r;
3919        struct qla82xx_md_entry_cache *cache_hdr;
3920        int rval = QLA_FUNCTION_FAILED;
3921        uint32_t *data_ptr = *d_ptr;
3922
3923        cache_hdr = (struct qla82xx_md_entry_cache *)entry_hdr;
3924        loop_count = cache_hdr->op_count;
3925        r_addr = cache_hdr->read_addr;
3926        c_addr = cache_hdr->control_addr;
3927        c_value_w = cache_hdr->cache_ctrl.write_value;
3928
3929        t_r_addr = cache_hdr->tag_reg_addr;
3930        t_value = cache_hdr->addr_ctrl.init_tag_value;
3931        r_cnt = cache_hdr->read_ctrl.read_addr_cnt;
3932        p_wait = cache_hdr->cache_ctrl.poll_wait;
3933        p_mask = cache_hdr->cache_ctrl.poll_mask;
3934
3935        for (i = 0; i < loop_count; i++) {
3936                qla82xx_md_rw_32(ha, t_r_addr, t_value, 1);
3937                if (c_value_w)
3938                        qla82xx_md_rw_32(ha, c_addr, c_value_w, 1);
3939
3940                if (p_mask) {
3941                        w_time = jiffies + p_wait;
3942                        do {
3943                                c_value_r = qla82xx_md_rw_32(ha, c_addr, 0, 0);
3944                                if ((c_value_r & p_mask) == 0)
3945                                        break;
3946                                else if (time_after_eq(jiffies, w_time)) {
3947                                        /* capturing dump failed */
3948                                        ql_dbg(ql_dbg_p3p, vha, 0xb032,
3949                                            "c_value_r: 0x%x, poll_mask: 0x%lx, "
3950                                            "w_time: 0x%lx\n",
3951                                            c_value_r, p_mask, w_time);
3952                                        return rval;
3953                                }
3954                        } while (1);
3955                }
3956
3957                addr = r_addr;
3958                for (k = 0; k < r_cnt; k++) {
3959                        r_value = qla82xx_md_rw_32(ha, addr, 0, 0);
3960                        *data_ptr++ = cpu_to_le32(r_value);
3961                        addr += cache_hdr->read_ctrl.read_addr_stride;
3962                }
3963                t_value += cache_hdr->addr_ctrl.tag_value_stride;
3964        }
3965        *d_ptr = data_ptr;
3966        return QLA_SUCCESS;
3967}
3968
3969static void
3970qla82xx_minidump_process_l1cache(scsi_qla_host_t *vha,
3971        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3972{
3973        struct qla_hw_data *ha = vha->hw;
3974        uint32_t addr, r_addr, c_addr, t_r_addr;
3975        uint32_t i, k, loop_count, t_value, r_cnt, r_value;
3976        uint32_t c_value_w;
3977        struct qla82xx_md_entry_cache *cache_hdr;
3978        uint32_t *data_ptr = *d_ptr;
3979
3980        cache_hdr = (struct qla82xx_md_entry_cache *)entry_hdr;
3981        loop_count = cache_hdr->op_count;
3982        r_addr = cache_hdr->read_addr;
3983        c_addr = cache_hdr->control_addr;
3984        c_value_w = cache_hdr->cache_ctrl.write_value;
3985
3986        t_r_addr = cache_hdr->tag_reg_addr;
3987        t_value = cache_hdr->addr_ctrl.init_tag_value;
3988        r_cnt = cache_hdr->read_ctrl.read_addr_cnt;
3989
3990        for (i = 0; i < loop_count; i++) {
3991                qla82xx_md_rw_32(ha, t_r_addr, t_value, 1);
3992                qla82xx_md_rw_32(ha, c_addr, c_value_w, 1);
3993                addr = r_addr;
3994                for (k = 0; k < r_cnt; k++) {
3995                        r_value = qla82xx_md_rw_32(ha, addr, 0, 0);
3996                        *data_ptr++ = cpu_to_le32(r_value);
3997                        addr += cache_hdr->read_ctrl.read_addr_stride;
3998                }
3999                t_value += cache_hdr->addr_ctrl.tag_value_stride;
4000        }
4001        *d_ptr = data_ptr;
4002}
4003
4004static void
4005qla82xx_minidump_process_queue(scsi_qla_host_t *vha,
4006        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
4007{
4008        struct qla_hw_data *ha = vha->hw;
4009        uint32_t s_addr, r_addr;
4010        uint32_t r_stride, r_value, r_cnt, qid = 0;
4011        uint32_t i, k, loop_cnt;
4012        struct qla82xx_md_entry_queue *q_hdr;
4013        uint32_t *data_ptr = *d_ptr;
4014
4015        q_hdr = (struct qla82xx_md_entry_queue *)entry_hdr;
4016        s_addr = q_hdr->select_addr;
4017        r_cnt = q_hdr->rd_strd.read_addr_cnt;
4018        r_stride = q_hdr->rd_strd.read_addr_stride;
4019        loop_cnt = q_hdr->op_count;
4020
4021        for (i = 0; i < loop_cnt; i++) {
4022                qla82xx_md_rw_32(ha, s_addr, qid, 1);
4023                r_addr = q_hdr->read_addr;
4024                for (k = 0; k < r_cnt; k++) {
4025                        r_value = qla82xx_md_rw_32(ha, r_addr, 0, 0);
4026                        *data_ptr++ = cpu_to_le32(r_value);
4027                        r_addr += r_stride;
4028                }
4029                qid += q_hdr->q_strd.queue_id_stride;
4030        }
4031        *d_ptr = data_ptr;
4032}
4033
4034static void
4035qla82xx_minidump_process_rdrom(scsi_qla_host_t *vha,
4036        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
4037{
4038        struct qla_hw_data *ha = vha->hw;
4039        uint32_t r_addr, r_value;
4040        uint32_t i, loop_cnt;
4041        struct qla82xx_md_entry_rdrom *rom_hdr;
4042        uint32_t *data_ptr = *d_ptr;
4043
4044        rom_hdr = (struct qla82xx_md_entry_rdrom *)entry_hdr;
4045        r_addr = rom_hdr->read_addr;
4046        loop_cnt = rom_hdr->read_data_size/sizeof(uint32_t);
4047
4048        for (i = 0; i < loop_cnt; i++) {
4049                qla82xx_md_rw_32(ha, MD_DIRECT_ROM_WINDOW,
4050                    (r_addr & 0xFFFF0000), 1);
4051                r_value = qla82xx_md_rw_32(ha,
4052                    MD_DIRECT_ROM_READ_BASE +
4053                    (r_addr & 0x0000FFFF), 0, 0);
4054                *data_ptr++ = cpu_to_le32(r_value);
4055                r_addr += sizeof(uint32_t);
4056        }
4057        *d_ptr = data_ptr;
4058}
4059
4060static int
4061qla82xx_minidump_process_rdmem(scsi_qla_host_t *vha,
4062        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
4063{
4064        struct qla_hw_data *ha = vha->hw;
4065        uint32_t r_addr, r_value, r_data;
4066        uint32_t i, j, loop_cnt;
4067        struct qla82xx_md_entry_rdmem *m_hdr;
4068        unsigned long flags;
4069        int rval = QLA_FUNCTION_FAILED;
4070        uint32_t *data_ptr = *d_ptr;
4071
4072        m_hdr = (struct qla82xx_md_entry_rdmem *)entry_hdr;
4073        r_addr = m_hdr->read_addr;
4074        loop_cnt = m_hdr->read_data_size/16;
4075
4076        if (r_addr & 0xf) {
4077                ql_log(ql_log_warn, vha, 0xb033,
4078                    "Read addr 0x%x not 16 bytes aligned\n", r_addr);
4079                return rval;
4080        }
4081
4082        if (m_hdr->read_data_size % 16) {
4083                ql_log(ql_log_warn, vha, 0xb034,
4084                    "Read data[0x%x] not multiple of 16 bytes\n",
4085                    m_hdr->read_data_size);
4086                return rval;
4087        }
4088
4089        ql_dbg(ql_dbg_p3p, vha, 0xb035,
4090            "[%s]: rdmem_addr: 0x%x, read_data_size: 0x%x, loop_cnt: 0x%x\n",
4091            __func__, r_addr, m_hdr->read_data_size, loop_cnt);
4092
4093        write_lock_irqsave(&ha->hw_lock, flags);
4094        for (i = 0; i < loop_cnt; i++) {
4095                qla82xx_md_rw_32(ha, MD_MIU_TEST_AGT_ADDR_LO, r_addr, 1);
4096                r_value = 0;
4097                qla82xx_md_rw_32(ha, MD_MIU_TEST_AGT_ADDR_HI, r_value, 1);
4098                r_value = MIU_TA_CTL_ENABLE;
4099                qla82xx_md_rw_32(ha, MD_MIU_TEST_AGT_CTRL, r_value, 1);
4100                r_value = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE;
4101                qla82xx_md_rw_32(ha, MD_MIU_TEST_AGT_CTRL, r_value, 1);
4102
4103                for (j = 0; j < MAX_CTL_CHECK; j++) {
4104                        r_value = qla82xx_md_rw_32(ha,
4105                            MD_MIU_TEST_AGT_CTRL, 0, 0);
4106                        if ((r_value & MIU_TA_CTL_BUSY) == 0)
4107                                break;
4108                }
4109
4110                if (j >= MAX_CTL_CHECK) {
4111                        printk_ratelimited(KERN_ERR
4112                            "failed to read through agent\n");
4113                        write_unlock_irqrestore(&ha->hw_lock, flags);
4114                        return rval;
4115                }
4116
4117                for (j = 0; j < 4; j++) {
4118                        r_data = qla82xx_md_rw_32(ha,
4119                            MD_MIU_TEST_AGT_RDDATA[j], 0, 0);
4120                        *data_ptr++ = cpu_to_le32(r_data);
4121                }
4122                r_addr += 16;
4123        }
4124        write_unlock_irqrestore(&ha->hw_lock, flags);
4125        *d_ptr = data_ptr;
4126        return QLA_SUCCESS;
4127}
4128
4129int
4130qla82xx_validate_template_chksum(scsi_qla_host_t *vha)
4131{
4132        struct qla_hw_data *ha = vha->hw;
4133        uint64_t chksum = 0;
4134        uint32_t *d_ptr = (uint32_t *)ha->md_tmplt_hdr;
4135        int count = ha->md_template_size/sizeof(uint32_t);
4136
4137        while (count-- > 0)
4138                chksum += *d_ptr++;
4139        while (chksum >> 32)
4140                chksum = (chksum & 0xFFFFFFFF) + (chksum >> 32);
4141        return ~chksum;
4142}
4143
4144static void
4145qla82xx_mark_entry_skipped(scsi_qla_host_t *vha,
4146        qla82xx_md_entry_hdr_t *entry_hdr, int index)
4147{
4148        entry_hdr->d_ctrl.driver_flags |= QLA82XX_DBG_SKIPPED_FLAG;
4149        ql_dbg(ql_dbg_p3p, vha, 0xb036,
4150            "Skipping entry[%d]: "
4151            "ETYPE[0x%x]-ELEVEL[0x%x]\n",
4152            index, entry_hdr->entry_type,
4153            entry_hdr->d_ctrl.entry_capture_mask);
4154}
4155
4156int
4157qla82xx_md_collect(scsi_qla_host_t *vha)
4158{
4159        struct qla_hw_data *ha = vha->hw;
4160        int no_entry_hdr = 0;
4161        qla82xx_md_entry_hdr_t *entry_hdr;
4162        struct qla82xx_md_template_hdr *tmplt_hdr;
4163        uint32_t *data_ptr;
4164        uint32_t total_data_size = 0, f_capture_mask, data_collected = 0;
4165        int i = 0, rval = QLA_FUNCTION_FAILED;
4166
4167        tmplt_hdr = (struct qla82xx_md_template_hdr *)ha->md_tmplt_hdr;
4168        data_ptr = (uint32_t *)ha->md_dump;
4169
4170        if (ha->fw_dumped) {
4171                ql_log(ql_log_warn, vha, 0xb037,
4172                    "Firmware has been previously dumped (%p) "
4173                    "-- ignoring request.\n", ha->fw_dump);
4174                goto md_failed;
4175        }
4176
4177        ha->fw_dumped = 0;
4178
4179        if (!ha->md_tmplt_hdr || !ha->md_dump) {
4180                ql_log(ql_log_warn, vha, 0xb038,
4181                    "Memory not allocated for minidump capture\n");
4182                goto md_failed;
4183        }
4184
4185        if (ha->flags.isp82xx_no_md_cap) {
4186                ql_log(ql_log_warn, vha, 0xb054,
4187                    "Forced reset from application, "
4188                    "ignore minidump capture\n");
4189                ha->flags.isp82xx_no_md_cap = 0;
4190                goto md_failed;
4191        }
4192
4193        if (qla82xx_validate_template_chksum(vha)) {
4194                ql_log(ql_log_info, vha, 0xb039,
4195                    "Template checksum validation error\n");
4196                goto md_failed;
4197        }
4198
4199        no_entry_hdr = tmplt_hdr->num_of_entries;
4200        ql_dbg(ql_dbg_p3p, vha, 0xb03a,
4201            "No of entry headers in Template: 0x%x\n", no_entry_hdr);
4202
4203        ql_dbg(ql_dbg_p3p, vha, 0xb03b,
4204            "Capture Mask obtained: 0x%x\n", tmplt_hdr->capture_debug_level);
4205
4206        f_capture_mask = tmplt_hdr->capture_debug_level & 0xFF;
4207
4208        /* Validate whether required debug level is set */
4209        if ((f_capture_mask & 0x3) != 0x3) {
4210                ql_log(ql_log_warn, vha, 0xb03c,
4211                    "Minimum required capture mask[0x%x] level not set\n",
4212                    f_capture_mask);
4213                goto md_failed;
4214        }
4215        tmplt_hdr->driver_capture_mask = ql2xmdcapmask;
4216
4217        tmplt_hdr->driver_info[0] = vha->host_no;
4218        tmplt_hdr->driver_info[1] = (QLA_DRIVER_MAJOR_VER << 24) |
4219            (QLA_DRIVER_MINOR_VER << 16) | (QLA_DRIVER_PATCH_VER << 8) |
4220            QLA_DRIVER_BETA_VER;
4221
4222        total_data_size = ha->md_dump_size;
4223
4224        ql_dbg(ql_dbg_p3p, vha, 0xb03d,
4225            "Total minidump data_size 0x%x to be captured\n", total_data_size);
4226
4227        /* Check whether template obtained is valid */
4228        if (tmplt_hdr->entry_type != QLA82XX_TLHDR) {
4229                ql_log(ql_log_warn, vha, 0xb04e,
4230                    "Bad template header entry type: 0x%x obtained\n",
4231                    tmplt_hdr->entry_type);
4232                goto md_failed;
4233        }
4234
4235        entry_hdr = (qla82xx_md_entry_hdr_t *) \
4236            (((uint8_t *)ha->md_tmplt_hdr) + tmplt_hdr->first_entry_offset);
4237
4238        /* Walk through the entry headers */
4239        for (i = 0; i < no_entry_hdr; i++) {
4240
4241                if (data_collected > total_data_size) {
4242                        ql_log(ql_log_warn, vha, 0xb03e,
4243                            "More MiniDump data collected: [0x%x]\n",
4244                            data_collected);
4245                        goto md_failed;
4246                }
4247
4248                if (!(entry_hdr->d_ctrl.entry_capture_mask &
4249                    ql2xmdcapmask)) {
4250                        entry_hdr->d_ctrl.driver_flags |=
4251                            QLA82XX_DBG_SKIPPED_FLAG;
4252                        ql_dbg(ql_dbg_p3p, vha, 0xb03f,
4253                            "Skipping entry[%d]: "
4254                            "ETYPE[0x%x]-ELEVEL[0x%x]\n",
4255                            i, entry_hdr->entry_type,
4256                            entry_hdr->d_ctrl.entry_capture_mask);
4257                        goto skip_nxt_entry;
4258                }
4259
4260                ql_dbg(ql_dbg_p3p, vha, 0xb040,
4261                    "[%s]: data ptr[%d]: %p, entry_hdr: %p\n"
4262                    "entry_type: 0x%x, capture_mask: 0x%x\n",
4263                    __func__, i, data_ptr, entry_hdr,
4264                    entry_hdr->entry_type,
4265                    entry_hdr->d_ctrl.entry_capture_mask);
4266
4267                ql_dbg(ql_dbg_p3p, vha, 0xb041,
4268                    "Data collected: [0x%x], Dump size left:[0x%x]\n",
4269                    data_collected, (ha->md_dump_size - data_collected));
4270
4271                /* Decode the entry type and take
4272                 * required action to capture debug data */
4273                switch (entry_hdr->entry_type) {
4274                case QLA82XX_RDEND:
4275                        qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4276                        break;
4277                case QLA82XX_CNTRL:
4278                        rval = qla82xx_minidump_process_control(vha,
4279                            entry_hdr, &data_ptr);
4280                        if (rval != QLA_SUCCESS) {
4281                                qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4282                                goto md_failed;
4283                        }
4284                        break;
4285                case QLA82XX_RDCRB:
4286                        qla82xx_minidump_process_rdcrb(vha,
4287                            entry_hdr, &data_ptr);
4288                        break;
4289                case QLA82XX_RDMEM:
4290                        rval = qla82xx_minidump_process_rdmem(vha,
4291                            entry_hdr, &data_ptr);
4292                        if (rval != QLA_SUCCESS) {
4293                                qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4294                                goto md_failed;
4295                        }
4296                        break;
4297                case QLA82XX_BOARD:
4298                case QLA82XX_RDROM:
4299                        qla82xx_minidump_process_rdrom(vha,
4300                            entry_hdr, &data_ptr);
4301                        break;
4302                case QLA82XX_L2DTG:
4303                case QLA82XX_L2ITG:
4304                case QLA82XX_L2DAT:
4305                case QLA82XX_L2INS:
4306                        rval = qla82xx_minidump_process_l2tag(vha,
4307                            entry_hdr, &data_ptr);
4308                        if (rval != QLA_SUCCESS) {
4309                                qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4310                                goto md_failed;
4311                        }
4312                        break;
4313                case QLA82XX_L1DAT:
4314                case QLA82XX_L1INS:
4315                        qla82xx_minidump_process_l1cache(vha,
4316                            entry_hdr, &data_ptr);
4317                        break;
4318                case QLA82XX_RDOCM:
4319                        qla82xx_minidump_process_rdocm(vha,
4320                            entry_hdr, &data_ptr);
4321                        break;
4322                case QLA82XX_RDMUX:
4323                        qla82xx_minidump_process_rdmux(vha,
4324                            entry_hdr, &data_ptr);
4325                        break;
4326                case QLA82XX_QUEUE:
4327                        qla82xx_minidump_process_queue(vha,
4328                            entry_hdr, &data_ptr);
4329                        break;
4330                case QLA82XX_RDNOP:
4331                default:
4332                        qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4333                        break;
4334                }
4335
4336                ql_dbg(ql_dbg_p3p, vha, 0xb042,
4337                    "[%s]: data ptr[%d]: %p\n", __func__, i, data_ptr);
4338
4339                data_collected = (uint8_t *)data_ptr -
4340                    (uint8_t *)ha->md_dump;
4341skip_nxt_entry:
4342                entry_hdr = (qla82xx_md_entry_hdr_t *) \
4343                    (((uint8_t *)entry_hdr) + entry_hdr->entry_size);
4344        }
4345
4346        if (data_collected != total_data_size) {
4347                ql_dbg(ql_dbg_p3p, vha, 0xb043,
4348                    "MiniDump data mismatch: Data collected: [0x%x],"
4349                    "total_data_size:[0x%x]\n",
4350                    data_collected, total_data_size);
4351                goto md_failed;
4352        }
4353
4354        ql_log(ql_log_info, vha, 0xb044,
4355            "Firmware dump saved to temp buffer (%ld/%p %ld/%p).\n",
4356            vha->host_no, ha->md_tmplt_hdr, vha->host_no, ha->md_dump);
4357        ha->fw_dumped = 1;
4358        qla2x00_post_uevent_work(vha, QLA_UEVENT_CODE_FW_DUMP);
4359
4360md_failed:
4361        return rval;
4362}
4363
4364int
4365qla82xx_md_alloc(scsi_qla_host_t *vha)
4366{
4367        struct qla_hw_data *ha = vha->hw;
4368        int i, k;
4369        struct qla82xx_md_template_hdr *tmplt_hdr;
4370
4371        tmplt_hdr = (struct qla82xx_md_template_hdr *)ha->md_tmplt_hdr;
4372
4373        if (ql2xmdcapmask < 0x3 || ql2xmdcapmask > 0x7F) {
4374                ql2xmdcapmask = tmplt_hdr->capture_debug_level & 0xFF;
4375                ql_log(ql_log_info, vha, 0xb045,
4376                    "Forcing driver capture mask to firmware default capture mask: 0x%x.\n",
4377                    ql2xmdcapmask);
4378        }
4379
4380        for (i = 0x2, k = 1; (i & QLA82XX_DEFAULT_CAP_MASK); i <<= 1, k++) {
4381                if (i & ql2xmdcapmask)
4382                        ha->md_dump_size += tmplt_hdr->capture_size_array[k];
4383        }
4384
4385        if (ha->md_dump) {
4386                ql_log(ql_log_warn, vha, 0xb046,
4387                    "Firmware dump previously allocated.\n");
4388                return 1;
4389        }
4390
4391        ha->md_dump = vmalloc(ha->md_dump_size);
4392        if (ha->md_dump == NULL) {
4393                ql_log(ql_log_warn, vha, 0xb047,
4394                    "Unable to allocate memory for Minidump size "
4395                    "(0x%x).\n", ha->md_dump_size);
4396                return 1;
4397        }
4398        return 0;
4399}
4400
4401void
4402qla82xx_md_free(scsi_qla_host_t *vha)
4403{
4404        struct qla_hw_data *ha = vha->hw;
4405
4406        /* Release the template header allocated */
4407        if (ha->md_tmplt_hdr) {
4408                ql_log(ql_log_info, vha, 0xb048,
4409                    "Free MiniDump template: %p, size (%d KB)\n",
4410                    ha->md_tmplt_hdr, ha->md_template_size / 1024);
4411                dma_free_coherent(&ha->pdev->dev, ha->md_template_size,
4412                    ha->md_tmplt_hdr, ha->md_tmplt_hdr_dma);
4413                ha->md_tmplt_hdr = NULL;
4414        }
4415
4416        /* Release the template data buffer allocated */
4417        if (ha->md_dump) {
4418                ql_log(ql_log_info, vha, 0xb049,
4419                    "Free MiniDump memory: %p, size (%d KB)\n",
4420                    ha->md_dump, ha->md_dump_size / 1024);
4421                vfree(ha->md_dump);
4422                ha->md_dump_size = 0;
4423                ha->md_dump = NULL;
4424        }
4425}
4426
4427void
4428qla82xx_md_prep(scsi_qla_host_t *vha)
4429{
4430        struct qla_hw_data *ha = vha->hw;
4431        int rval;
4432
4433        /* Get Minidump template size */
4434        rval = qla82xx_md_get_template_size(vha);
4435        if (rval == QLA_SUCCESS) {
4436                ql_log(ql_log_info, vha, 0xb04a,
4437                    "MiniDump Template size obtained (%d KB)\n",
4438                    ha->md_template_size / 1024);
4439
4440                /* Get Minidump template */
4441                if (IS_QLA8044(ha))
4442                        rval = qla8044_md_get_template(vha);
4443                else
4444                        rval = qla82xx_md_get_template(vha);
4445
4446                if (rval == QLA_SUCCESS) {
4447                        ql_dbg(ql_dbg_p3p, vha, 0xb04b,
4448                            "MiniDump Template obtained\n");
4449
4450                        /* Allocate memory for minidump */
4451                        rval = qla82xx_md_alloc(vha);
4452                        if (rval == QLA_SUCCESS)
4453                                ql_log(ql_log_info, vha, 0xb04c,
4454                                    "MiniDump memory allocated (%d KB)\n",
4455                                    ha->md_dump_size / 1024);
4456                        else {
4457                                ql_log(ql_log_info, vha, 0xb04d,
4458                                    "Free MiniDump template: %p, size: (%d KB)\n",
4459                                    ha->md_tmplt_hdr,
4460                                    ha->md_template_size / 1024);
4461                                dma_free_coherent(&ha->pdev->dev,
4462                                    ha->md_template_size,
4463                                    ha->md_tmplt_hdr, ha->md_tmplt_hdr_dma);
4464                                ha->md_tmplt_hdr = NULL;
4465                        }
4466
4467                }
4468        }
4469}
4470
4471int
4472qla82xx_beacon_on(struct scsi_qla_host *vha)
4473{
4474
4475        int rval;
4476        struct qla_hw_data *ha = vha->hw;
4477
4478        qla82xx_idc_lock(ha);
4479        rval = qla82xx_mbx_beacon_ctl(vha, 1);
4480
4481        if (rval) {
4482                ql_log(ql_log_warn, vha, 0xb050,
4483                    "mbx set led config failed in %s\n", __func__);
4484                goto exit;
4485        }
4486        ha->beacon_blink_led = 1;
4487exit:
4488        qla82xx_idc_unlock(ha);
4489        return rval;
4490}
4491
4492int
4493qla82xx_beacon_off(struct scsi_qla_host *vha)
4494{
4495
4496        int rval;
4497        struct qla_hw_data *ha = vha->hw;
4498
4499        qla82xx_idc_lock(ha);
4500        rval = qla82xx_mbx_beacon_ctl(vha, 0);
4501
4502        if (rval) {
4503                ql_log(ql_log_warn, vha, 0xb051,
4504                    "mbx set led config failed in %s\n", __func__);
4505                goto exit;
4506        }
4507        ha->beacon_blink_led = 0;
4508exit:
4509        qla82xx_idc_unlock(ha);
4510        return rval;
4511}
4512
4513void
4514qla82xx_fw_dump(scsi_qla_host_t *vha, int hardware_locked)
4515{
4516        struct qla_hw_data *ha = vha->hw;
4517
4518        if (!ha->allow_cna_fw_dump)
4519                return;
4520
4521        scsi_block_requests(vha->host);
4522        ha->flags.isp82xx_no_md_cap = 1;
4523        qla82xx_idc_lock(ha);
4524        qla82xx_set_reset_owner(vha);
4525        qla82xx_idc_unlock(ha);
4526        qla2x00_wait_for_chip_reset(vha);
4527        scsi_unblock_requests(vha->host);
4528}
4529