drivers/scsi/qla2xxx/qla_nx.c

   1 /*
   2  * QLogic Fibre Channel HBA Driver
   3  * Copyright (c)  2003-2013 QLogic Corporation
   4  *
   5  * See LICENSE.qla2xxx for copyright and licensing details.
   6  */
   7 #include "qla_def.h"
   8 #include <linux/delay.h>
   9 #include <linux/pci.h>
  10 #include <linux/ratelimit.h>
  11 #include <linux/vmalloc.h>
  12 #include <scsi/scsi_tcq.h>
  13
  14 #define MASK(n)                 ((1ULL<<(n))-1)
  15 #define MN_WIN(addr) (((addr & 0x1fc0000) >> 1) | \
  16         ((addr >> 25) & 0x3ff))
  17 #define OCM_WIN(addr) (((addr & 0x1ff0000) >> 1) | \
  18         ((addr >> 25) & 0x3ff))
  19 #define MS_WIN(addr) (addr & 0x0ffc0000)
  20 #define QLA82XX_PCI_MN_2M   (0)
  21 #define QLA82XX_PCI_MS_2M   (0x80000)
  22 #define QLA82XX_PCI_OCM0_2M (0xc0000)
  23 #define VALID_OCM_ADDR(addr) (((addr) & 0x3f800) != 0x3f800)
  24 #define GET_MEM_OFFS_2M(addr) (addr & MASK(18))
  25 #define BLOCK_PROTECT_BITS 0x0F
  26
  27 /* CRB window related */
  28 #define CRB_BLK(off)    ((off >> 20) & 0x3f)
  29 #define CRB_SUBBLK(off) ((off >> 16) & 0xf)
  30 #define CRB_WINDOW_2M   (0x130060)
  31 #define QLA82XX_PCI_CAMQM_2M_END        (0x04800800UL)
  32 #define CRB_HI(off)     ((qla82xx_crb_hub_agt[CRB_BLK(off)] << 20) | \
  33                         ((off) & 0xf0000))
  34 #define QLA82XX_PCI_CAMQM_2M_BASE       (0x000ff800UL)
  35 #define CRB_INDIRECT_2M (0x1e0000UL)
  36
  37 #define MAX_CRB_XFORM 60
  38 static unsigned long crb_addr_xform[MAX_CRB_XFORM];
  39 static int qla82xx_crb_table_initialized;
  40
  41 #define qla82xx_crb_addr_transform(name) \
  42         (crb_addr_xform[QLA82XX_HW_PX_MAP_CRB_##name] = \
  43         QLA82XX_HW_CRB_HUB_AGT_ADR_##name << 20)
  44
  45 static void qla82xx_crb_addr_transform_setup(void)
  46 {
  47         qla82xx_crb_addr_transform(XDMA);
  48         qla82xx_crb_addr_transform(TIMR);
  49         qla82xx_crb_addr_transform(SRE);
  50         qla82xx_crb_addr_transform(SQN3);
  51         qla82xx_crb_addr_transform(SQN2);
  52         qla82xx_crb_addr_transform(SQN1);
  53         qla82xx_crb_addr_transform(SQN0);
  54         qla82xx_crb_addr_transform(SQS3);
  55         qla82xx_crb_addr_transform(SQS2);
  56         qla82xx_crb_addr_transform(SQS1);
  57         qla82xx_crb_addr_transform(SQS0);
  58         qla82xx_crb_addr_transform(RPMX7);
  59         qla82xx_crb_addr_transform(RPMX6);
  60         qla82xx_crb_addr_transform(RPMX5);
  61         qla82xx_crb_addr_transform(RPMX4);
  62         qla82xx_crb_addr_transform(RPMX3);
  63         qla82xx_crb_addr_transform(RPMX2);
  64         qla82xx_crb_addr_transform(RPMX1);
  65         qla82xx_crb_addr_transform(RPMX0);
  66         qla82xx_crb_addr_transform(ROMUSB);
  67         qla82xx_crb_addr_transform(SN);
  68         qla82xx_crb_addr_transform(QMN);
  69         qla82xx_crb_addr_transform(QMS);
  70         qla82xx_crb_addr_transform(PGNI);
  71         qla82xx_crb_addr_transform(PGND);
  72         qla82xx_crb_addr_transform(PGN3);
  73         qla82xx_crb_addr_transform(PGN2);
  74         qla82xx_crb_addr_transform(PGN1);
  75         qla82xx_crb_addr_transform(PGN0);
  76         qla82xx_crb_addr_transform(PGSI);
  77         qla82xx_crb_addr_transform(PGSD);
  78         qla82xx_crb_addr_transform(PGS3);
  79         qla82xx_crb_addr_transform(PGS2);
  80         qla82xx_crb_addr_transform(PGS1);
  81         qla82xx_crb_addr_transform(PGS0);
  82         qla82xx_crb_addr_transform(PS);
  83         qla82xx_crb_addr_transform(PH);
  84         qla82xx_crb_addr_transform(NIU);
  85         qla82xx_crb_addr_transform(I2Q);
  86         qla82xx_crb_addr_transform(EG);
  87         qla82xx_crb_addr_transform(MN);
  88         qla82xx_crb_addr_transform(MS);
  89         qla82xx_crb_addr_transform(CAS2);
  90         qla82xx_crb_addr_transform(CAS1);
  91         qla82xx_crb_addr_transform(CAS0);
  92         qla82xx_crb_addr_transform(CAM);
  93         qla82xx_crb_addr_transform(C2C1);
  94         qla82xx_crb_addr_transform(C2C0);
  95         qla82xx_crb_addr_transform(SMB);
  96         qla82xx_crb_addr_transform(OCM0);
  97         /*
  98          * Used only in P3 just define it for P2 also.
  99          */
 100         qla82xx_crb_addr_transform(I2C0);
 101
 102         qla82xx_crb_table_initialized = 1;
 103 }
 104
 105 static struct crb_128M_2M_block_map crb_128M_2M_map[64] = {
 106         {{{0, 0,         0,         0} } },
 107         {{{1, 0x0100000, 0x0102000, 0x120000},
 108         {1, 0x0110000, 0x0120000, 0x130000},
 109         {1, 0x0120000, 0x0122000, 0x124000},
 110         {1, 0x0130000, 0x0132000, 0x126000},
 111         {1, 0x0140000, 0x0142000, 0x128000},
 112         {1, 0x0150000, 0x0152000, 0x12a000},
 113         {1, 0x0160000, 0x0170000, 0x110000},
 114         {1, 0x0170000, 0x0172000, 0x12e000},
 115         {0, 0x0000000, 0x0000000, 0x000000},
 116         {0, 0x0000000, 0x0000000, 0x000000},
 117         {0, 0x0000000, 0x0000000, 0x000000},
 118         {0, 0x0000000, 0x0000000, 0x000000},
 119         {0, 0x0000000, 0x0000000, 0x000000},
 120         {0, 0x0000000, 0x0000000, 0x000000},
 121         {1, 0x01e0000, 0x01e0800, 0x122000},
 122         {0, 0x0000000, 0x0000000, 0x000000} } } ,
 123         {{{1, 0x0200000, 0x0210000, 0x180000} } },
 124         {{{0, 0,         0,         0} } },
 125         {{{1, 0x0400000, 0x0401000, 0x169000} } },
 126         {{{1, 0x0500000, 0x0510000, 0x140000} } },
 127         {{{1, 0x0600000, 0x0610000, 0x1c0000} } },
 128         {{{1, 0x0700000, 0x0704000, 0x1b8000} } },
 129         {{{1, 0x0800000, 0x0802000, 0x170000},
 130         {0, 0x0000000, 0x0000000, 0x000000},
 131         {0, 0x0000000, 0x0000000, 0x000000},
 132         {0, 0x0000000, 0x0000000, 0x000000},
 133         {0, 0x0000000, 0x0000000, 0x000000},
 134         {0, 0x0000000, 0x0000000, 0x000000},
 135         {0, 0x0000000, 0x0000000, 0x000000},
 136         {0, 0x0000000, 0x0000000, 0x000000},
 137         {0, 0x0000000, 0x0000000, 0x000000},
 138         {0, 0x0000000, 0x0000000, 0x000000},
 139         {0, 0x0000000, 0x0000000, 0x000000},
 140         {0, 0x0000000, 0x0000000, 0x000000},
 141         {0, 0x0000000, 0x0000000, 0x000000},
 142         {0, 0x0000000, 0x0000000, 0x000000},
 143         {0, 0x0000000, 0x0000000, 0x000000},
 144         {1, 0x08f0000, 0x08f2000, 0x172000} } },
 145         {{{1, 0x0900000, 0x0902000, 0x174000},
 146         {0, 0x0000000, 0x0000000, 0x000000},
 147         {0, 0x0000000, 0x0000000, 0x000000},
 148         {0, 0x0000000, 0x0000000, 0x000000},
 149         {0, 0x0000000, 0x0000000, 0x000000},
 150         {0, 0x0000000, 0x0000000, 0x000000},
 151         {0, 0x0000000, 0x0000000, 0x000000},
 152         {0, 0x0000000, 0x0000000, 0x000000},
 153         {0, 0x0000000, 0x0000000, 0x000000},
 154         {0, 0x0000000, 0x0000000, 0x000000},
 155         {0, 0x0000000, 0x0000000, 0x000000},
 156         {0, 0x0000000, 0x0000000, 0x000000},
 157         {0, 0x0000000, 0x0000000, 0x000000},
 158         {0, 0x0000000, 0x0000000, 0x000000},
 159         {0, 0x0000000, 0x0000000, 0x000000},
 160         {1, 0x09f0000, 0x09f2000, 0x176000} } },
 161         {{{0, 0x0a00000, 0x0a02000, 0x178000},
 162         {0, 0x0000000, 0x0000000, 0x000000},
 163         {0, 0x0000000, 0x0000000, 0x000000},
 164         {0, 0x0000000, 0x0000000, 0x000000},
 165         {0, 0x0000000, 0x0000000, 0x000000},
 166         {0, 0x0000000, 0x0000000, 0x000000},
 167         {0, 0x0000000, 0x0000000, 0x000000},
 168         {0, 0x0000000, 0x0000000, 0x000000},
 169         {0, 0x0000000, 0x0000000, 0x000000},
 170         {0, 0x0000000, 0x0000000, 0x000000},
 171         {0, 0x0000000, 0x0000000, 0x000000},
 172         {0, 0x0000000, 0x0000000, 0x000000},
 173         {0, 0x0000000, 0x0000000, 0x000000},
 174         {0, 0x0000000, 0x0000000, 0x000000},
 175         {0, 0x0000000, 0x0000000, 0x000000},
 176         {1, 0x0af0000, 0x0af2000, 0x17a000} } },
 177         {{{0, 0x0b00000, 0x0b02000, 0x17c000},
 178         {0, 0x0000000, 0x0000000, 0x000000},
 179         {0, 0x0000000, 0x0000000, 0x000000},
 180         {0, 0x0000000, 0x0000000, 0x000000},
 181         {0, 0x0000000, 0x0000000, 0x000000},
 182         {0, 0x0000000, 0x0000000, 0x000000},
 183         {0, 0x0000000, 0x0000000, 0x000000},
 184         {0, 0x0000000, 0x0000000, 0x000000},
 185         {0, 0x0000000, 0x0000000, 0x000000},
 186         {0, 0x0000000, 0x0000000, 0x000000},
 187         {0, 0x0000000, 0x0000000, 0x000000},
 188         {0, 0x0000000, 0x0000000, 0x000000},
 189         {0, 0x0000000, 0x0000000, 0x000000},
 190         {0, 0x0000000, 0x0000000, 0x000000},
 191         {0, 0x0000000, 0x0000000, 0x000000},
 192         {1, 0x0bf0000, 0x0bf2000, 0x17e000} } },
 193         {{{1, 0x0c00000, 0x0c04000, 0x1d4000} } },
 194         {{{1, 0x0d00000, 0x0d04000, 0x1a4000} } },
 195         {{{1, 0x0e00000, 0x0e04000, 0x1a0000} } },
 196         {{{1, 0x0f00000, 0x0f01000, 0x164000} } },
 197         {{{0, 0x1000000, 0x1004000, 0x1a8000} } },
 198         {{{1, 0x1100000, 0x1101000, 0x160000} } },
 199         {{{1, 0x1200000, 0x1201000, 0x161000} } },
 200         {{{1, 0x1300000, 0x1301000, 0x162000} } },
 201         {{{1, 0x1400000, 0x1401000, 0x163000} } },
 202         {{{1, 0x1500000, 0x1501000, 0x165000} } },
 203         {{{1, 0x1600000, 0x1601000, 0x166000} } },
 204         {{{0, 0,         0,         0} } },
 205         {{{0, 0,         0,         0} } },
 206         {{{0, 0,         0,         0} } },
 207         {{{0, 0,         0,         0} } },
 208         {{{0, 0,         0,         0} } },
 209         {{{0, 0,         0,         0} } },
 210         {{{1, 0x1d00000, 0x1d10000, 0x190000} } },
 211         {{{1, 0x1e00000, 0x1e01000, 0x16a000} } },
 212         {{{1, 0x1f00000, 0x1f10000, 0x150000} } },
 213         {{{0} } },
 214         {{{1, 0x2100000, 0x2102000, 0x120000},
 215         {1, 0x2110000, 0x2120000, 0x130000},
 216         {1, 0x2120000, 0x2122000, 0x124000},
 217         {1, 0x2130000, 0x2132000, 0x126000},
 218         {1, 0x2140000, 0x2142000, 0x128000},
 219         {1, 0x2150000, 0x2152000, 0x12a000},
 220         {1, 0x2160000, 0x2170000, 0x110000},
 221         {1, 0x2170000, 0x2172000, 0x12e000},
 222         {0, 0x0000000, 0x0000000, 0x000000},
 223         {0, 0x0000000, 0x0000000, 0x000000},
 224         {0, 0x0000000, 0x0000000, 0x000000},
 225         {0, 0x0000000, 0x0000000, 0x000000},
 226         {0, 0x0000000, 0x0000000, 0x000000},
 227         {0, 0x0000000, 0x0000000, 0x000000},
 228         {0, 0x0000000, 0x0000000, 0x000000},
 229         {0, 0x0000000, 0x0000000, 0x000000} } },
 230         {{{1, 0x2200000, 0x2204000, 0x1b0000} } },
 231         {{{0} } },
 232         {{{0} } },
 233         {{{0} } },
 234         {{{0} } },
 235         {{{0} } },
 236         {{{1, 0x2800000, 0x2804000, 0x1a4000} } },
 237         {{{1, 0x2900000, 0x2901000, 0x16b000} } },
 238         {{{1, 0x2a00000, 0x2a00400, 0x1ac400} } },
 239         {{{1, 0x2b00000, 0x2b00400, 0x1ac800} } },
 240         {{{1, 0x2c00000, 0x2c00400, 0x1acc00} } },
 241         {{{1, 0x2d00000, 0x2d00400, 0x1ad000} } },
 242         {{{1, 0x2e00000, 0x2e00400, 0x1ad400} } },
 243         {{{1, 0x2f00000, 0x2f00400, 0x1ad800} } },
 244         {{{1, 0x3000000, 0x3000400, 0x1adc00} } },
 245         {{{0, 0x3100000, 0x3104000, 0x1a8000} } },
 246         {{{1, 0x3200000, 0x3204000, 0x1d4000} } },
 247         {{{1, 0x3300000, 0x3304000, 0x1a0000} } },
 248         {{{0} } },
 249         {{{1, 0x3500000, 0x3500400, 0x1ac000} } },
 250         {{{1, 0x3600000, 0x3600400, 0x1ae000} } },
 251         {{{1, 0x3700000, 0x3700400, 0x1ae400} } },
 252         {{{1, 0x3800000, 0x3804000, 0x1d0000} } },
 253         {{{1, 0x3900000, 0x3904000, 0x1b4000} } },
 254         {{{1, 0x3a00000, 0x3a04000, 0x1d8000} } },
 255         {{{0} } },
 256         {{{0} } },
 257         {{{1, 0x3d00000, 0x3d04000, 0x1dc000} } },
 258         {{{1, 0x3e00000, 0x3e01000, 0x167000} } },
 259         {{{1, 0x3f00000, 0x3f01000, 0x168000} } }
 260 };
 261
 262 /*
 263  * top 12 bits of crb internal address (hub, agent)
 264  */
 265 static unsigned qla82xx_crb_hub_agt[64] = {
 266         0,
 267         QLA82XX_HW_CRB_HUB_AGT_ADR_PS,
 268         QLA82XX_HW_CRB_HUB_AGT_ADR_MN,
 269         QLA82XX_HW_CRB_HUB_AGT_ADR_MS,
 270         0,
 271         QLA82XX_HW_CRB_HUB_AGT_ADR_SRE,
 272         QLA82XX_HW_CRB_HUB_AGT_ADR_NIU,
 273         QLA82XX_HW_CRB_HUB_AGT_ADR_QMN,
 274         QLA82XX_HW_CRB_HUB_AGT_ADR_SQN0,
 275         QLA82XX_HW_CRB_HUB_AGT_ADR_SQN1,
 276         QLA82XX_HW_CRB_HUB_AGT_ADR_SQN2,
 277         QLA82XX_HW_CRB_HUB_AGT_ADR_SQN3,
 278         QLA82XX_HW_CRB_HUB_AGT_ADR_I2Q,
 279         QLA82XX_HW_CRB_HUB_AGT_ADR_TIMR,
 280         QLA82XX_HW_CRB_HUB_AGT_ADR_ROMUSB,
 281         QLA82XX_HW_CRB_HUB_AGT_ADR_PGN4,
 282         QLA82XX_HW_CRB_HUB_AGT_ADR_XDMA,
 283         QLA82XX_HW_CRB_HUB_AGT_ADR_PGN0,
 284         QLA82XX_HW_CRB_HUB_AGT_ADR_PGN1,
 285         QLA82XX_HW_CRB_HUB_AGT_ADR_PGN2,
 286         QLA82XX_HW_CRB_HUB_AGT_ADR_PGN3,
 287         QLA82XX_HW_CRB_HUB_AGT_ADR_PGND,
 288         QLA82XX_HW_CRB_HUB_AGT_ADR_PGNI,
 289         QLA82XX_HW_CRB_HUB_AGT_ADR_PGS0,
 290         QLA82XX_HW_CRB_HUB_AGT_ADR_PGS1,
 291         QLA82XX_HW_CRB_HUB_AGT_ADR_PGS2,
 292         QLA82XX_HW_CRB_HUB_AGT_ADR_PGS3,
 293         0,
 294         QLA82XX_HW_CRB_HUB_AGT_ADR_PGSI,
 295         QLA82XX_HW_CRB_HUB_AGT_ADR_SN,
 296         0,
 297         QLA82XX_HW_CRB_HUB_AGT_ADR_EG,
 298         0,
 299         QLA82XX_HW_CRB_HUB_AGT_ADR_PS,
 300         QLA82XX_HW_CRB_HUB_AGT_ADR_CAM,
 301         0,
 302         0,
 303         0,
 304         0,
 305         0,
 306         QLA82XX_HW_CRB_HUB_AGT_ADR_TIMR,
 307         0,
 308         QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX1,
 309         QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX2,
 310         QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX3,
 311         QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX4,
 312         QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX5,
 313         QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX6,
 314         QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX7,
 315         QLA82XX_HW_CRB_HUB_AGT_ADR_XDMA,
 316         QLA82XX_HW_CRB_HUB_AGT_ADR_I2Q,
 317         QLA82XX_HW_CRB_HUB_AGT_ADR_ROMUSB,
 318         0,
 319         QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX0,
 320         QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX8,
 321         QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX9,
 322         QLA82XX_HW_CRB_HUB_AGT_ADR_OCM0,
 323         0,
 324         QLA82XX_HW_CRB_HUB_AGT_ADR_SMB,
 325         QLA82XX_HW_CRB_HUB_AGT_ADR_I2C0,
 326         QLA82XX_HW_CRB_HUB_AGT_ADR_I2C1,
 327         0,
 328         QLA82XX_HW_CRB_HUB_AGT_ADR_PGNC,
 329         0,
 330 };
 331
 332 /* Device states */
 333 static char *q_dev_state[] = {
 334          "Unknown",
 335         "Cold",
 336         "Initializing",
 337         "Ready",
 338         "Need Reset",
 339         "Need Quiescent",
 340         "Failed",
 341         "Quiescent",
 342 };
 343
 344 char *qdev_state(uint32_t dev_state)
 345 {
 346         return q_dev_state[dev_state];
 347 }
 348
 349 /*
 350  * In: 'off' is offset from CRB space in 128M pci map
 351  * Out: 'off' is 2M pci map addr
 352  * side effect: lock crb window
 353  */
 354 static void
 355 qla82xx_pci_set_crbwindow_2M(struct qla_hw_data *ha, ulong *off)
 356 {
 357         u32 win_read;
 358         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 359
 360         ha->crb_win = CRB_HI(*off);
 361         writel(ha->crb_win,
 362                 (void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase));
 363
 364         /* Read back value to make sure write has gone through before trying
 365          * to use it.
 366          */
 367         win_read = RD_REG_DWORD((void __iomem *)
 368             (CRB_WINDOW_2M + ha->nx_pcibase));
 369         if (win_read != ha->crb_win) {
 370                 ql_dbg(ql_dbg_p3p, vha, 0xb000,
 371                     "%s: Written crbwin (0x%x) "
 372                     "!= Read crbwin (0x%x), off=0x%lx.\n",
 373                     __func__, ha->crb_win, win_read, *off);
 374         }
 375         *off = (*off & MASK(16)) + CRB_INDIRECT_2M + ha->nx_pcibase;
 376 }
 377
 378 static inline unsigned long
 379 qla82xx_pci_set_crbwindow(struct qla_hw_data *ha, u64 off)
 380 {
 381         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 382         /* See if we are currently pointing to the region we want to use next */
 383         if ((off >= QLA82XX_CRB_PCIX_HOST) && (off < QLA82XX_CRB_DDR_NET)) {
 384                 /* No need to change window. PCIX and PCIEregs are in both
 385                  * regs are in both windows.
 386                  */
 387                 return off;
 388         }
 389
 390         if ((off >= QLA82XX_CRB_PCIX_HOST) && (off < QLA82XX_CRB_PCIX_HOST2)) {
 391                 /* We are in first CRB window */
 392                 if (ha->curr_window != 0)
 393                         WARN_ON(1);
 394                 return off;
 395         }
 396
 397         if ((off > QLA82XX_CRB_PCIX_HOST2) && (off < QLA82XX_CRB_MAX)) {
 398                 /* We are in second CRB window */
 399                 off = off - QLA82XX_CRB_PCIX_HOST2 + QLA82XX_CRB_PCIX_HOST;
 400
 401                 if (ha->curr_window != 1)
 402                         return off;
 403
 404                 /* We are in the QM or direct access
 405                  * register region - do nothing
 406                  */
 407                 if ((off >= QLA82XX_PCI_DIRECT_CRB) &&
 408                         (off < QLA82XX_PCI_CAMQM_MAX))
 409                         return off;
 410         }
 411         /* strange address given */
 412         ql_dbg(ql_dbg_p3p, vha, 0xb001,
 413             "%s: Warning: unm_nic_pci_set_crbwindow "
 414             "called with an unknown address(%llx).\n",
 415             QLA2XXX_DRIVER_NAME, off);
 416         return off;
 417 }
 418
 419 static int
 420 qla82xx_pci_get_crb_addr_2M(struct qla_hw_data *ha, ulong *off)
 421 {
 422         struct crb_128M_2M_sub_block_map *m;
 423
 424         if (*off >= QLA82XX_CRB_MAX)
 425                 return -1;
 426
 427         if (*off >= QLA82XX_PCI_CAMQM && (*off < QLA82XX_PCI_CAMQM_2M_END)) {
 428                 *off = (*off - QLA82XX_PCI_CAMQM) +
 429                     QLA82XX_PCI_CAMQM_2M_BASE + ha->nx_pcibase;
 430                 return 0;
 431         }
 432
 433         if (*off < QLA82XX_PCI_CRBSPACE)
 434                 return -1;
 435
 436         *off -= QLA82XX_PCI_CRBSPACE;
 437
 438         /* Try direct map */
 439         m = &crb_128M_2M_map[CRB_BLK(*off)].sub_block[CRB_SUBBLK(*off)];
 440
 441         if (m->valid && (m->start_128M <= *off) && (m->end_128M > *off)) {
 442                 *off = *off + m->start_2M - m->start_128M + ha->nx_pcibase;
 443                 return 0;
 444         }
 445         /* Not in direct map, use crb window */
 446         return 1;
 447 }
 448
 449 #define CRB_WIN_LOCK_TIMEOUT 100000000
 450 static int qla82xx_crb_win_lock(struct qla_hw_data *ha)
 451 {
 452         int done = 0, timeout = 0;
 453
 454         while (!done) {
 455                 /* acquire semaphore3 from PCI HW block */
 456                 done = qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_LOCK));
 457                 if (done == 1)
 458                         break;
 459                 if (timeout >= CRB_WIN_LOCK_TIMEOUT)
 460                         return -1;
 461                 timeout++;
 462         }
 463         qla82xx_wr_32(ha, QLA82XX_CRB_WIN_LOCK_ID, ha->portnum);
 464         return 0;
 465 }
 466
 467 int
 468 qla82xx_wr_32(struct qla_hw_data *ha, ulong off, u32 data)
 469 {
 470         unsigned long flags = 0;
 471         int rv;
 472
 473         rv = qla82xx_pci_get_crb_addr_2M(ha, &off);
 474
 475         BUG_ON(rv == -1);
 476
 477         if (rv == 1) {
 478                 write_lock_irqsave(&ha->hw_lock, flags);
 479                 qla82xx_crb_win_lock(ha);
 480                 qla82xx_pci_set_crbwindow_2M(ha, &off);
 481         }
 482
 483         writel(data, (void __iomem *)off);
 484
 485         if (rv == 1) {
 486                 qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_UNLOCK));
 487                 write_unlock_irqrestore(&ha->hw_lock, flags);
 488         }
 489         return 0;
 490 }
 491
 492 int
 493 qla82xx_rd_32(struct qla_hw_data *ha, ulong off)
 494 {
 495         unsigned long flags = 0;
 496         int rv;
 497         u32 data;
 498
 499         rv = qla82xx_pci_get_crb_addr_2M(ha, &off);
 500
 501         BUG_ON(rv == -1);
 502
 503         if (rv == 1) {
 504                 write_lock_irqsave(&ha->hw_lock, flags);
 505                 qla82xx_crb_win_lock(ha);
 506                 qla82xx_pci_set_crbwindow_2M(ha, &off);
 507         }
 508         data = RD_REG_DWORD((void __iomem *)off);
 509
 510         if (rv == 1) {
 511                 qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_UNLOCK));
 512                 write_unlock_irqrestore(&ha->hw_lock, flags);
 513         }
 514         return data;
 515 }
 516
 517 #define IDC_LOCK_TIMEOUT 100000000
 518 int qla82xx_idc_lock(struct qla_hw_data *ha)
 519 {
 520         int i;
 521         int done = 0, timeout = 0;
 522
 523         while (!done) {
 524                 /* acquire semaphore5 from PCI HW block */
 525                 done = qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM5_LOCK));
 526                 if (done == 1)
 527                         break;
 528                 if (timeout >= IDC_LOCK_TIMEOUT)
 529                         return -1;
 530
 531                 timeout++;
 532
 533                 /* Yield CPU */
 534                 if (!in_interrupt())
 535                         schedule();
 536                 else {
 537                         for (i = 0; i < 20; i++)
 538                                 cpu_relax();
 539                 }
 540         }
 541
 542         return 0;
 543 }
 544
 545 void qla82xx_idc_unlock(struct qla_hw_data *ha)
 546 {
 547         qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM5_UNLOCK));
 548 }
 549
 550 /*  PCI Windowing for DDR regions.  */
 551 #define QLA82XX_ADDR_IN_RANGE(addr, low, high) \
 552         (((addr) <= (high)) && ((addr) >= (low)))
 553 /*
 554  * check memory access boundary.
 555  * used by test agent. support ddr access only for now
 556  */
 557 static unsigned long
 558 qla82xx_pci_mem_bound_check(struct qla_hw_data *ha,
 559         unsigned long long addr, int size)
 560 {
 561         if (!QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_DDR_NET,
 562                 QLA82XX_ADDR_DDR_NET_MAX) ||
 563                 !QLA82XX_ADDR_IN_RANGE(addr + size - 1, QLA82XX_ADDR_DDR_NET,
 564                 QLA82XX_ADDR_DDR_NET_MAX) ||
 565                 ((size != 1) && (size != 2) && (size != 4) && (size != 8)))
 566                         return 0;
 567         else
 568                 return 1;
 569 }
 570
 571 static int qla82xx_pci_set_window_warning_count;
 572
 573 static unsigned long
 574 qla82xx_pci_set_window(struct qla_hw_data *ha, unsigned long long addr)
 575 {
 576         int window;
 577         u32 win_read;
 578         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 579
 580         if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_DDR_NET,
 581                 QLA82XX_ADDR_DDR_NET_MAX)) {
 582                 /* DDR network side */
 583                 window = MN_WIN(addr);
 584                 ha->ddr_mn_window = window;
 585                 qla82xx_wr_32(ha,
 586                         ha->mn_win_crb | QLA82XX_PCI_CRBSPACE, window);
 587                 win_read = qla82xx_rd_32(ha,
 588                         ha->mn_win_crb | QLA82XX_PCI_CRBSPACE);
 589                 if ((win_read << 17) != window) {
 590                         ql_dbg(ql_dbg_p3p, vha, 0xb003,
 591                             "%s: Written MNwin (0x%x) != Read MNwin (0x%x).\n",
 592                             __func__, window, win_read);
 593                 }
 594                 addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_DDR_NET;
 595         } else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_OCM0,
 596                 QLA82XX_ADDR_OCM0_MAX)) {
 597                 unsigned int temp1;
 598                 if ((addr & 0x00ff800) == 0xff800) {
 599                         ql_log(ql_log_warn, vha, 0xb004,
 600                             "%s: QM access not handled.\n", __func__);
 601                         addr = -1UL;
 602                 }
 603                 window = OCM_WIN(addr);
 604                 ha->ddr_mn_window = window;
 605                 qla82xx_wr_32(ha,
 606                         ha->mn_win_crb | QLA82XX_PCI_CRBSPACE, window);
 607                 win_read = qla82xx_rd_32(ha,
 608                         ha->mn_win_crb | QLA82XX_PCI_CRBSPACE);
 609                 temp1 = ((window & 0x1FF) << 7) |
 610                     ((window & 0x0FFFE0000) >> 17);
 611                 if (win_read != temp1) {
 612                         ql_log(ql_log_warn, vha, 0xb005,
 613                             "%s: Written OCMwin (0x%x) != Read OCMwin (0x%x).\n",
 614                             __func__, temp1, win_read);
 615                 }
 616                 addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_OCM0_2M;
 617
 618         } else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_QDR_NET,
 619                 QLA82XX_P3_ADDR_QDR_NET_MAX)) {
 620                 /* QDR network side */
 621                 window = MS_WIN(addr);
 622                 ha->qdr_sn_window = window;
 623                 qla82xx_wr_32(ha,
 624                         ha->ms_win_crb | QLA82XX_PCI_CRBSPACE, window);
 625                 win_read = qla82xx_rd_32(ha,
 626                         ha->ms_win_crb | QLA82XX_PCI_CRBSPACE);
 627                 if (win_read != window) {
 628                         ql_log(ql_log_warn, vha, 0xb006,
 629                             "%s: Written MSwin (0x%x) != Read MSwin (0x%x).\n",
 630                             __func__, window, win_read);
 631                 }
 632                 addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_QDR_NET;
 633         } else {
 634                 /*
 635                  * peg gdb frequently accesses memory that doesn't exist,
 636                  * this limits the chit chat so debugging isn't slowed down.
 637                  */
 638                 if ((qla82xx_pci_set_window_warning_count++ < 8) ||
 639                     (qla82xx_pci_set_window_warning_count%64 == 0)) {
 640                         ql_log(ql_log_warn, vha, 0xb007,
 641                             "%s: Warning:%s Unknown address range!.\n",
 642                             __func__, QLA2XXX_DRIVER_NAME);
 643                 }
 644                 addr = -1UL;
 645         }
 646         return addr;
 647 }
 648
 649 /* check if address is in the same windows as the previous access */
 650 static int qla82xx_pci_is_same_window(struct qla_hw_data *ha,
 651         unsigned long long addr)
 652 {
 653         int                     window;
 654         unsigned long long      qdr_max;
 655
 656         qdr_max = QLA82XX_P3_ADDR_QDR_NET_MAX;
 657
 658         /* DDR network side */
 659         if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_DDR_NET,
 660                 QLA82XX_ADDR_DDR_NET_MAX))
 661                 BUG();
 662         else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_OCM0,
 663                 QLA82XX_ADDR_OCM0_MAX))
 664                 return 1;
 665         else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_OCM1,
 666                 QLA82XX_ADDR_OCM1_MAX))
 667                 return 1;
 668         else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_QDR_NET, qdr_max)) {
 669                 /* QDR network side */
 670                 window = ((addr - QLA82XX_ADDR_QDR_NET) >> 22) & 0x3f;
 671                 if (ha->qdr_sn_window == window)
 672                         return 1;
 673         }
 674         return 0;
 675 }
 676
 677 static int qla82xx_pci_mem_read_direct(struct qla_hw_data *ha,
 678         u64 off, void *data, int size)
 679 {
 680         unsigned long   flags;
 681         void __iomem *addr = NULL;
 682         int             ret = 0;
 683         u64             start;
 684         uint8_t __iomem  *mem_ptr = NULL;
 685         unsigned long   mem_base;
 686         unsigned long   mem_page;
 687         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 688
 689         write_lock_irqsave(&ha->hw_lock, flags);
 690
 691         /*
 692          * If attempting to access unknown address or straddle hw windows,
 693          * do not access.
 694          */
 695         start = qla82xx_pci_set_window(ha, off);
 696         if ((start == -1UL) ||
 697                 (qla82xx_pci_is_same_window(ha, off + size - 1) == 0)) {
 698                 write_unlock_irqrestore(&ha->hw_lock, flags);
 699                 ql_log(ql_log_fatal, vha, 0xb008,
 700                     "%s out of bound pci memory "
 701                     "access, offset is 0x%llx.\n",
 702                     QLA2XXX_DRIVER_NAME, off);
 703                 return -1;
 704         }
 705
 706         write_unlock_irqrestore(&ha->hw_lock, flags);
 707         mem_base = pci_resource_start(ha->pdev, 0);
 708         mem_page = start & PAGE_MASK;
 709         /* Map two pages whenever user tries to access addresses in two
 710         * consecutive pages.
 711         */
 712         if (mem_page != ((start + size - 1) & PAGE_MASK))
 713                 mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE * 2);
 714         else
 715                 mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE);
 716         if (mem_ptr == NULL) {
 717                 *(u8  *)data = 0;
 718                 return -1;
 719         }
 720         addr = mem_ptr;
 721         addr += start & (PAGE_SIZE - 1);
 722         write_lock_irqsave(&ha->hw_lock, flags);
 723
 724         switch (size) {
 725         case 1:
 726                 *(u8  *)data = readb(addr);
 727                 break;
 728         case 2:
 729                 *(u16 *)data = readw(addr);
 730                 break;
 731         case 4:
 732                 *(u32 *)data = readl(addr);
 733                 break;
 734         case 8:
 735                 *(u64 *)data = readq(addr);
 736                 break;
 737         default:
 738                 ret = -1;
 739                 break;
 740         }
 741         write_unlock_irqrestore(&ha->hw_lock, flags);
 742
 743         if (mem_ptr)
 744                 iounmap(mem_ptr);
 745         return ret;
 746 }
 747
 748 static int
 749 qla82xx_pci_mem_write_direct(struct qla_hw_data *ha,
 750         u64 off, void *data, int size)
 751 {
 752         unsigned long   flags;
 753         void  __iomem *addr = NULL;
 754         int             ret = 0;
 755         u64             start;
 756         uint8_t __iomem *mem_ptr = NULL;
 757         unsigned long   mem_base;
 758         unsigned long   mem_page;
 759         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 760
 761         write_lock_irqsave(&ha->hw_lock, flags);
 762
 763         /*
 764          * If attempting to access unknown address or straddle hw windows,
 765          * do not access.
 766          */
 767         start = qla82xx_pci_set_window(ha, off);
 768         if ((start == -1UL) ||
 769                 (qla82xx_pci_is_same_window(ha, off + size - 1) == 0)) {
 770                 write_unlock_irqrestore(&ha->hw_lock, flags);
 771                 ql_log(ql_log_fatal, vha, 0xb009,
 772                     "%s out of bount memory "
 773                     "access, offset is 0x%llx.\n",
 774                     QLA2XXX_DRIVER_NAME, off);
 775                 return -1;
 776         }
 777
 778         write_unlock_irqrestore(&ha->hw_lock, flags);
 779         mem_base = pci_resource_start(ha->pdev, 0);
 780         mem_page = start & PAGE_MASK;
 781         /* Map two pages whenever user tries to access addresses in two
 782          * consecutive pages.
 783          */
 784         if (mem_page != ((start + size - 1) & PAGE_MASK))
 785                 mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE*2);
 786         else
 787                 mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE);
 788         if (mem_ptr == NULL)
 789                 return -1;
 790
 791         addr = mem_ptr;
 792         addr += start & (PAGE_SIZE - 1);
 793         write_lock_irqsave(&ha->hw_lock, flags);
 794
 795         switch (size) {
 796         case 1:
 797                 writeb(*(u8  *)data, addr);
 798                 break;
 799         case 2:
 800                 writew(*(u16 *)data, addr);
 801                 break;
 802         case 4:
 803                 writel(*(u32 *)data, addr);
 804                 break;
 805         case 8:
 806                 writeq(*(u64 *)data, addr);
 807                 break;
 808         default:
 809                 ret = -1;
 810                 break;
 811         }
 812         write_unlock_irqrestore(&ha->hw_lock, flags);
 813         if (mem_ptr)
 814                 iounmap(mem_ptr);
 815         return ret;
 816 }
 817
 818 #define MTU_FUDGE_FACTOR 100
 819 static unsigned long
 820 qla82xx_decode_crb_addr(unsigned long addr)
 821 {
 822         int i;
 823         unsigned long base_addr, offset, pci_base;
 824
 825         if (!qla82xx_crb_table_initialized)
 826                 qla82xx_crb_addr_transform_setup();
 827
 828         pci_base = ADDR_ERROR;
 829         base_addr = addr & 0xfff00000;
 830         offset = addr & 0x000fffff;
 831
 832         for (i = 0; i < MAX_CRB_XFORM; i++) {
 833                 if (crb_addr_xform[i] == base_addr) {
 834                         pci_base = i << 20;
 835                         break;
 836                 }
 837         }
 838         if (pci_base == ADDR_ERROR)
 839                 return pci_base;
 840         return pci_base + offset;
 841 }
 842
 843 static long rom_max_timeout = 100;
 844 static long qla82xx_rom_lock_timeout = 100;
 845
 846 static int
 847 qla82xx_rom_lock(struct qla_hw_data *ha)
 848 {
 849         int done = 0, timeout = 0;
 850         uint32_t lock_owner = 0;
 851
 852         while (!done) {
 853                 /* acquire semaphore2 from PCI HW block */
 854                 done = qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_LOCK));
 855                 if (done == 1)
 856                         break;
 857                 if (timeout >= qla82xx_rom_lock_timeout) {
 858                         lock_owner = qla82xx_rd_32(ha, QLA82XX_ROM_LOCK_ID);
 859                         return -1;
 860                 }
 861                 timeout++;
 862         }
 863         qla82xx_wr_32(ha, QLA82XX_ROM_LOCK_ID, ROM_LOCK_DRIVER);
 864         return 0;
 865 }
 866
 867 static void
 868 qla82xx_rom_unlock(struct qla_hw_data *ha)
 869 {
 870         qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_UNLOCK));
 871 }
 872
 873 static int
 874 qla82xx_wait_rom_busy(struct qla_hw_data *ha)
 875 {
 876         long timeout = 0;
 877         long done = 0 ;
 878         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 879
 880         while (done == 0) {
 881                 done = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_STATUS);
 882                 done &= 4;
 883                 timeout++;
 884                 if (timeout >= rom_max_timeout) {
 885                         ql_dbg(ql_dbg_p3p, vha, 0xb00a,
 886                             "%s: Timeout reached waiting for rom busy.\n",
 887                             QLA2XXX_DRIVER_NAME);
 888                         return -1;
 889                 }
 890         }
 891         return 0;
 892 }
 893
 894 static int
 895 qla82xx_wait_rom_done(struct qla_hw_data *ha)
 896 {
 897         long timeout = 0;
 898         long done = 0 ;
 899         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 900
 901         while (done == 0) {
 902                 done = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_STATUS);
 903                 done &= 2;
 904                 timeout++;
 905                 if (timeout >= rom_max_timeout) {
 906                         ql_dbg(ql_dbg_p3p, vha, 0xb00b,
 907                             "%s: Timeout reached waiting for rom done.\n",
 908                             QLA2XXX_DRIVER_NAME);
 909                         return -1;
 910                 }
 911         }
 912         return 0;
 913 }
 914
 915 static int
 916 qla82xx_md_rw_32(struct qla_hw_data *ha, uint32_t off, u32 data, uint8_t flag)
 917 {
 918         uint32_t  off_value, rval = 0;
 919
 920         WRT_REG_DWORD((void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase),
 921             (off & 0xFFFF0000));
 922
 923         /* Read back value to make sure write has gone through */
 924         RD_REG_DWORD((void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase));
 925         off_value  = (off & 0x0000FFFF);
 926
 927         if (flag)
 928                 WRT_REG_DWORD((void __iomem *)
 929                     (off_value + CRB_INDIRECT_2M + ha->nx_pcibase),
 930                     data);
 931         else
 932                 rval = RD_REG_DWORD((void __iomem *)
 933                     (off_value + CRB_INDIRECT_2M + ha->nx_pcibase));
 934
 935         return rval;
 936 }
 937
 938 static int
 939 qla82xx_do_rom_fast_read(struct qla_hw_data *ha, int addr, int *valp)
 940 {
 941         /* Dword reads to flash. */
 942         qla82xx_md_rw_32(ha, MD_DIRECT_ROM_WINDOW, (addr & 0xFFFF0000), 1);
 943         *valp = qla82xx_md_rw_32(ha, MD_DIRECT_ROM_READ_BASE +
 944             (addr & 0x0000FFFF), 0, 0);
 945
 946         return 0;
 947 }
 948
 949 static int
 950 qla82xx_rom_fast_read(struct qla_hw_data *ha, int addr, int *valp)
 951 {
 952         int ret, loops = 0;
 953         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 954
 955         while ((qla82xx_rom_lock(ha) != 0) && (loops < 50000)) {
 956                 udelay(100);
 957                 schedule();
 958                 loops++;
 959         }
 960         if (loops >= 50000) {
 961                 ql_log(ql_log_fatal, vha, 0x00b9,
 962                     "Failed to acquire SEM2 lock.\n");
 963                 return -1;
 964         }
 965         ret = qla82xx_do_rom_fast_read(ha, addr, valp);
 966         qla82xx_rom_unlock(ha);
 967         return ret;
 968 }
 969
 970 static int
 971 qla82xx_read_status_reg(struct qla_hw_data *ha, uint32_t *val)
 972 {
 973         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 974         qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_RDSR);
 975         qla82xx_wait_rom_busy(ha);
 976         if (qla82xx_wait_rom_done(ha)) {
 977                 ql_log(ql_log_warn, vha, 0xb00c,
 978                     "Error waiting for rom done.\n");
 979                 return -1;
 980         }
 981         *val = qla82xx_rd_32(ha, QLA82XX_ROMUSB_ROM_RDATA);
 982         return 0;
 983 }
 984
 985 static int
 986 qla82xx_flash_wait_write_finish(struct qla_hw_data *ha)
 987 {
 988         long timeout = 0;
 989         uint32_t done = 1 ;
 990         uint32_t val;
 991         int ret = 0;
 992         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 993
 994         qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 0);
 995         while ((done != 0) && (ret == 0)) {
 996                 ret = qla82xx_read_status_reg(ha, &val);
 997                 done = val & 1;
 998                 timeout++;
 999                 udelay(10);
1000                 cond_resched();
1001                 if (timeout >= 50000) {
1002                         ql_log(ql_log_warn, vha, 0xb00d,
1003                             "Timeout reached waiting for write finish.\n");
1004                         return -1;
1005                 }
1006         }
1007         return ret;
1008 }
1009
1010 static int
1011 qla82xx_flash_set_write_enable(struct qla_hw_data *ha)
1012 {
1013         uint32_t val;
1014         qla82xx_wait_rom_busy(ha);
1015         qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 0);
1016         qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_WREN);
1017         qla82xx_wait_rom_busy(ha);
1018         if (qla82xx_wait_rom_done(ha))
1019                 return -1;
1020         if (qla82xx_read_status_reg(ha, &val) != 0)
1021                 return -1;
1022         if ((val & 2) != 2)
1023                 return -1;
1024         return 0;
1025 }
1026
1027 static int
1028 qla82xx_write_status_reg(struct qla_hw_data *ha, uint32_t val)
1029 {
1030         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1031         if (qla82xx_flash_set_write_enable(ha))
1032                 return -1;
1033         qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_WDATA, val);
1034         qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, 0x1);
1035         if (qla82xx_wait_rom_done(ha)) {
1036                 ql_log(ql_log_warn, vha, 0xb00e,
1037                     "Error waiting for rom done.\n");
1038                 return -1;
1039         }
1040         return qla82xx_flash_wait_write_finish(ha);
1041 }
1042
1043 static int
1044 qla82xx_write_disable_flash(struct qla_hw_data *ha)
1045 {
1046         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1047         qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_WRDI);
1048         if (qla82xx_wait_rom_done(ha)) {
1049                 ql_log(ql_log_warn, vha, 0xb00f,
1050                     "Error waiting for rom done.\n");
1051                 return -1;
1052         }
1053         return 0;
1054 }
1055
1056 static int
1057 ql82xx_rom_lock_d(struct qla_hw_data *ha)
1058 {
1059         int loops = 0;
1060         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1061
1062         while ((qla82xx_rom_lock(ha) != 0) && (loops < 50000)) {
1063                 udelay(100);
1064                 cond_resched();
1065                 loops++;
1066         }
1067         if (loops >= 50000) {
1068                 ql_log(ql_log_warn, vha, 0xb010,
1069                     "ROM lock failed.\n");
1070                 return -1;
1071         }
1072         return 0;
1073 }
1074
1075 static int
1076 qla82xx_write_flash_dword(struct qla_hw_data *ha, uint32_t flashaddr,
1077         uint32_t data)
1078 {
1079         int ret = 0;
1080         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1081
1082         ret = ql82xx_rom_lock_d(ha);
1083         if (ret < 0) {
1084                 ql_log(ql_log_warn, vha, 0xb011,
1085                     "ROM lock failed.\n");
1086                 return ret;
1087         }
1088
1089         if (qla82xx_flash_set_write_enable(ha))
1090                 goto done_write;
1091
1092         qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_WDATA, data);
1093         qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ADDRESS, flashaddr);
1094         qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 3);
1095         qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_PP);
1096         qla82xx_wait_rom_busy(ha);
1097         if (qla82xx_wait_rom_done(ha)) {
1098                 ql_log(ql_log_warn, vha, 0xb012,
1099                     "Error waiting for rom done.\n");
1100                 ret = -1;
1101                 goto done_write;
1102         }
1103
1104         ret = qla82xx_flash_wait_write_finish(ha);
1105
1106 done_write:
1107         qla82xx_rom_unlock(ha);
1108         return ret;
1109 }
1110
1111 /* This routine does CRB initialize sequence
1112  *  to put the ISP into operational state
1113  */
1114 static int
1115 qla82xx_pinit_from_rom(scsi_qla_host_t *vha)
1116 {
1117         int addr, val;
1118         int i ;
1119         struct crb_addr_pair *buf;
1120         unsigned long off;
1121         unsigned offset, n;
1122         struct qla_hw_data *ha = vha->hw;
1123
1124         struct crb_addr_pair {
1125                 long addr;
1126                 long data;
1127         };
1128
1129         /* Halt all the individual PEGs and other blocks of the ISP */
1130         qla82xx_rom_lock(ha);
1131
1132         /* disable all I2Q */
1133         qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x10, 0x0);
1134         qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x14, 0x0);
1135         qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x18, 0x0);
1136         qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x1c, 0x0);
1137         qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x20, 0x0);
1138         qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x24, 0x0);
1139
1140         /* disable all niu interrupts */
1141         qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x40, 0xff);
1142         /* disable xge rx/tx */
1143         qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x70000, 0x00);
1144         /* disable xg1 rx/tx */
1145         qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x80000, 0x00);
1146         /* disable sideband mac */
1147         qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x90000, 0x00);
1148         /* disable ap0 mac */
1149         qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0xa0000, 0x00);
1150         /* disable ap1 mac */
1151         qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0xb0000, 0x00);
1152
1153         /* halt sre */
1154         val = qla82xx_rd_32(ha, QLA82XX_CRB_SRE + 0x1000);
1155         qla82xx_wr_32(ha, QLA82XX_CRB_SRE + 0x1000, val & (~(0x1)));
1156
1157         /* halt epg */
1158         qla82xx_wr_32(ha, QLA82XX_CRB_EPG + 0x1300, 0x1);
1159
1160         /* halt timers */
1161         qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x0, 0x0);
1162         qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x8, 0x0);
1163         qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x10, 0x0);
1164         qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x18, 0x0);
1165         qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x100, 0x0);
1166         qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x200, 0x0);
1167
1168         /* halt pegs */
1169         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x3c, 1);
1170         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1 + 0x3c, 1);
1171         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2 + 0x3c, 1);
1172         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3 + 0x3c, 1);
1173         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_4 + 0x3c, 1);
1174         msleep(20);
1175
1176         /* big hammer */
1177         if (test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
1178                 /* don't reset CAM block on reset */
1179                 qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xfeffffff);
1180         else
1181                 qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xffffffff);
1182         qla82xx_rom_unlock(ha);
1183
1184         /* Read the signature value from the flash.
1185          * Offset 0: Contain signature (0xcafecafe)
1186          * Offset 4: Offset and number of addr/value pairs
1187          * that present in CRB initialize sequence
1188          */
1189         if (qla82xx_rom_fast_read(ha, 0, &n) != 0 || n != 0xcafecafeUL ||
1190             qla82xx_rom_fast_read(ha, 4, &n) != 0) {
1191                 ql_log(ql_log_fatal, vha, 0x006e,
1192                     "Error Reading crb_init area: n: %08x.\n", n);
1193                 return -1;
1194         }
1195
1196         /* Offset in flash = lower 16 bits
1197          * Number of entries = upper 16 bits
1198          */
1199         offset = n & 0xffffU;
1200         n = (n >> 16) & 0xffffU;
1201
1202         /* number of addr/value pair should not exceed 1024 entries */
1203         if (n  >= 1024) {
1204                 ql_log(ql_log_fatal, vha, 0x0071,
1205                     "Card flash not initialized:n=0x%x.\n", n);
1206                 return -1;
1207         }
1208
1209         ql_log(ql_log_info, vha, 0x0072,
1210             "%d CRB init values found in ROM.\n", n);
1211
1212         buf = kmalloc(n * sizeof(struct crb_addr_pair), GFP_KERNEL);
1213         if (buf == NULL) {
1214                 ql_log(ql_log_fatal, vha, 0x010c,
1215                     "Unable to allocate memory.\n");
1216                 return -1;
1217         }
1218
1219         for (i = 0; i < n; i++) {
1220                 if (qla82xx_rom_fast_read(ha, 8*i + 4*offset, &val) != 0 ||
1221                     qla82xx_rom_fast_read(ha, 8*i + 4*offset + 4, &addr) != 0) {
1222                         kfree(buf);
1223                         return -1;
1224                 }
1225
1226                 buf[i].addr = addr;
1227                 buf[i].data = val;
1228         }
1229
1230         for (i = 0; i < n; i++) {
1231                 /* Translate internal CRB initialization
1232                  * address to PCI bus address
1233                  */
1234                 off = qla82xx_decode_crb_addr((unsigned long)buf[i].addr) +
1235                     QLA82XX_PCI_CRBSPACE;
1236                 /* Not all CRB  addr/value pair to be written,
1237                  * some of them are skipped
1238                  */
1239
1240                 /* skipping cold reboot MAGIC */
1241                 if (off == QLA82XX_CAM_RAM(0x1fc))
1242                         continue;
1243
1244                 /* do not reset PCI */
1245                 if (off == (ROMUSB_GLB + 0xbc))
1246                         continue;
1247
1248                 /* skip core clock, so that firmware can increase the clock */
1249                 if (off == (ROMUSB_GLB + 0xc8))
1250                         continue;
1251
1252                 /* skip the function enable register */
1253                 if (off == QLA82XX_PCIE_REG(PCIE_SETUP_FUNCTION))
1254                         continue;
1255
1256                 if (off == QLA82XX_PCIE_REG(PCIE_SETUP_FUNCTION2))
1257                         continue;
1258
1259                 if ((off & 0x0ff00000) == QLA82XX_CRB_SMB)
1260                         continue;
1261
1262                 if ((off & 0x0ff00000) == QLA82XX_CRB_DDR_NET)
1263                         continue;
1264
1265                 if (off == ADDR_ERROR) {
1266                         ql_log(ql_log_fatal, vha, 0x0116,
1267                             "Unknow addr: 0x%08lx.\n", buf[i].addr);
1268                         continue;
1269                 }
1270
1271                 qla82xx_wr_32(ha, off, buf[i].data);
1272
1273                 /* ISP requires much bigger delay to settle down,
1274                  * else crb_window returns 0xffffffff
1275                  */
1276                 if (off == QLA82XX_ROMUSB_GLB_SW_RESET)
1277                         msleep(1000);
1278
1279                 /* ISP requires millisec delay between
1280                  * successive CRB register updation
1281                  */
1282                 msleep(1);
1283         }
1284
1285         kfree(buf);
1286
1287         /* Resetting the data and instruction cache */
1288         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0xec, 0x1e);
1289         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0x4c, 8);
1290         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_I+0x4c, 8);
1291
1292         /* Clear all protocol processing engines */
1293         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0x8, 0);
1294         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0xc, 0);
1295         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0x8, 0);
1296         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0xc, 0);
1297         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0x8, 0);
1298         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0xc, 0);
1299         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0x8, 0);
1300         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0xc, 0);
1301         return 0;
1302 }
1303
1304 static int
1305 qla82xx_pci_mem_write_2M(struct qla_hw_data *ha,
1306                 u64 off, void *data, int size)
1307 {
1308         int i, j, ret = 0, loop, sz[2], off0;
1309         int scale, shift_amount, startword;
1310         uint32_t temp;
1311         uint64_t off8, mem_crb, tmpw, word[2] = {0, 0};
1312
1313         /*
1314          * If not MN, go check for MS or invalid.
1315          */
1316         if (off >= QLA82XX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX)
1317                 mem_crb = QLA82XX_CRB_QDR_NET;
1318         else {
1319                 mem_crb = QLA82XX_CRB_DDR_NET;
1320                 if (qla82xx_pci_mem_bound_check(ha, off, size) == 0)
1321                         return qla82xx_pci_mem_write_direct(ha,
1322                             off, data, size);
1323         }
1324
1325         off0 = off & 0x7;
1326         sz[0] = (size < (8 - off0)) ? size : (8 - off0);
1327         sz[1] = size - sz[0];
1328
1329         off8 = off & 0xfffffff0;
1330         loop = (((off & 0xf) + size - 1) >> 4) + 1;
1331         shift_amount = 4;
1332         scale = 2;
1333         startword = (off & 0xf)/8;
1334
1335         for (i = 0; i < loop; i++) {
1336                 if (qla82xx_pci_mem_read_2M(ha, off8 +
1337                     (i << shift_amount), &word[i * scale], 8))
1338                         return -1;
1339         }
1340
1341         switch (size) {
1342         case 1:
1343                 tmpw = *((uint8_t *)data);
1344                 break;
1345         case 2:
1346                 tmpw = *((uint16_t *)data);
1347                 break;
1348         case 4:
1349                 tmpw = *((uint32_t *)data);
1350                 break;
1351         case 8:
1352         default:
1353                 tmpw = *((uint64_t *)data);
1354                 break;
1355         }
1356
1357         if (sz[0] == 8) {
1358                 word[startword] = tmpw;
1359         } else {
1360                 word[startword] &=
1361                         ~((~(~0ULL << (sz[0] * 8))) << (off0 * 8));
1362                 word[startword] |= tmpw << (off0 * 8);
1363         }
1364         if (sz[1] != 0) {
1365                 word[startword+1] &= ~(~0ULL << (sz[1] * 8));
1366                 word[startword+1] |= tmpw >> (sz[0] * 8);
1367         }
1368
1369         for (i = 0; i < loop; i++) {
1370                 temp = off8 + (i << shift_amount);
1371                 qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_LO, temp);
1372                 temp = 0;
1373                 qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_HI, temp);
1374                 temp = word[i * scale] & 0xffffffff;
1375                 qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_LO, temp);
1376                 temp = (word[i * scale] >> 32) & 0xffffffff;
1377                 qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_HI, temp);
1378                 temp = word[i*scale + 1] & 0xffffffff;
1379                 qla82xx_wr_32(ha, mem_crb +
1380                     MIU_TEST_AGT_WRDATA_UPPER_LO, temp);
1381                 temp = (word[i*scale + 1] >> 32) & 0xffffffff;
1382                 qla82xx_wr_32(ha, mem_crb +
1383                     MIU_TEST_AGT_WRDATA_UPPER_HI, temp);
1384
1385                 temp = MIU_TA_CTL_ENABLE | MIU_TA_CTL_WRITE;
1386                 qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1387                 temp = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE | MIU_TA_CTL_WRITE;
1388                 qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1389
1390                 for (j = 0; j < MAX_CTL_CHECK; j++) {
1391                         temp = qla82xx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL);
1392                         if ((temp & MIU_TA_CTL_BUSY) == 0)
1393                                 break;
1394                 }
1395
1396                 if (j >= MAX_CTL_CHECK) {
1397                         if (printk_ratelimit())
1398                                 dev_err(&ha->pdev->dev,
1399                                     "failed to write through agent.\n");
1400                         ret = -1;
1401                         break;
1402                 }
1403         }
1404
1405         return ret;
1406 }
1407
1408 static int
1409 qla82xx_fw_load_from_flash(struct qla_hw_data *ha)
1410 {
1411         int  i;
1412         long size = 0;
1413         long flashaddr = ha->flt_region_bootload << 2;
1414         long memaddr = BOOTLD_START;
1415         u64 data;
1416         u32 high, low;
1417         size = (IMAGE_START - BOOTLD_START) / 8;
1418
1419         for (i = 0; i < size; i++) {
1420                 if ((qla82xx_rom_fast_read(ha, flashaddr, (int *)&low)) ||
1421                     (qla82xx_rom_fast_read(ha, flashaddr + 4, (int *)&high))) {
1422                         return -1;
1423                 }
1424                 data = ((u64)high << 32) | low ;
1425                 qla82xx_pci_mem_write_2M(ha, memaddr, &data, 8);
1426                 flashaddr += 8;
1427                 memaddr += 8;
1428
1429                 if (i % 0x1000 == 0)
1430                         msleep(1);
1431         }
1432         udelay(100);
1433         read_lock(&ha->hw_lock);
1434         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x18, 0x1020);
1435         qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0x80001e);
1436         read_unlock(&ha->hw_lock);
1437         return 0;
1438 }
1439
1440 int
1441 qla82xx_pci_mem_read_2M(struct qla_hw_data *ha,
1442                 u64 off, void *data, int size)
1443 {
1444         int i, j = 0, k, start, end, loop, sz[2], off0[2];
1445         int           shift_amount;
1446         uint32_t      temp;
1447         uint64_t      off8, val, mem_crb, word[2] = {0, 0};
1448
1449         /*
1450          * If not MN, go check for MS or invalid.
1451          */
1452
1453         if (off >= QLA82XX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX)
1454                 mem_crb = QLA82XX_CRB_QDR_NET;
1455         else {
1456                 mem_crb = QLA82XX_CRB_DDR_NET;
1457                 if (qla82xx_pci_mem_bound_check(ha, off, size) == 0)
1458                         return qla82xx_pci_mem_read_direct(ha,
1459                             off, data, size);
1460         }
1461
1462         off8 = off & 0xfffffff0;
1463         off0[0] = off & 0xf;
1464         sz[0] = (size < (16 - off0[0])) ? size : (16 - off0[0]);
1465         shift_amount = 4;
1466         loop = ((off0[0] + size - 1) >> shift_amount) + 1;
1467         off0[1] = 0;
1468         sz[1] = size - sz[0];
1469
1470         for (i = 0; i < loop; i++) {
1471                 temp = off8 + (i << shift_amount);
1472                 qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_LO, temp);
1473                 temp = 0;
1474                 qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_HI, temp);
1475                 temp = MIU_TA_CTL_ENABLE;
1476                 qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1477                 temp = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE;
1478                 qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1479
1480                 for (j = 0; j < MAX_CTL_CHECK; j++) {
1481                         temp = qla82xx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL);
1482                         if ((temp & MIU_TA_CTL_BUSY) == 0)
1483                                 break;
1484                 }
1485
1486                 if (j >= MAX_CTL_CHECK) {
1487                         if (printk_ratelimit())
1488                                 dev_err(&ha->pdev->dev,
1489                                     "failed to read through agent.\n");
1490                         break;
1491                 }
1492
1493                 start = off0[i] >> 2;
1494                 end   = (off0[i] + sz[i] - 1) >> 2;
1495                 for (k = start; k <= end; k++) {
1496                         temp = qla82xx_rd_32(ha,
1497                                         mem_crb + MIU_TEST_AGT_RDDATA(k));
1498                         word[i] |= ((uint64_t)temp << (32 * (k & 1)));
1499                 }
1500         }
1501
1502         if (j >= MAX_CTL_CHECK)
1503                 return -1;
1504
1505         if ((off0[0] & 7) == 0) {
1506                 val = word[0];
1507         } else {
1508                 val = ((word[0] >> (off0[0] * 8)) & (~(~0ULL << (sz[0] * 8)))) |
1509                         ((word[1] & (~(~0ULL << (sz[1] * 8)))) << (sz[0] * 8));
1510         }
1511
1512         switch (size) {
1513         case 1:
1514                 *(uint8_t  *)data = val;
1515                 break;
1516         case 2:
1517                 *(uint16_t *)data = val;
1518                 break;
1519         case 4:
1520                 *(uint32_t *)data = val;
1521                 break;
1522         case 8:
1523                 *(uint64_t *)data = val;
1524                 break;
1525         }
1526         return 0;
1527 }
1528
1529
1530 static struct qla82xx_uri_table_desc *
1531 qla82xx_get_table_desc(const u8 *unirom, int section)
1532 {
1533         uint32_t i;
1534         struct qla82xx_uri_table_desc *directory =
1535                 (struct qla82xx_uri_table_desc *)&unirom[0];
1536         __le32 offset;
1537         __le32 tab_type;
1538         __le32 entries = cpu_to_le32(directory->num_entries);
1539
1540         for (i = 0; i < entries; i++) {
1541                 offset = cpu_to_le32(directory->findex) +
1542                     (i * cpu_to_le32(directory->entry_size));
1543                 tab_type = cpu_to_le32(*((u32 *)&unirom[offset] + 8));
1544
1545                 if (tab_type == section)
1546                         return (struct qla82xx_uri_table_desc *)&unirom[offset];
1547         }
1548
1549         return NULL;
1550 }
1551
1552 static struct qla82xx_uri_data_desc *
1553 qla82xx_get_data_desc(struct qla_hw_data *ha,
1554         u32 section, u32 idx_offset)
1555 {
1556         const u8 *unirom = ha->hablob->fw->data;
1557         int idx = cpu_to_le32(*((int *)&unirom[ha->file_prd_off] + idx_offset));
1558         struct qla82xx_uri_table_desc *tab_desc = NULL;
1559         __le32 offset;
1560
1561         tab_desc = qla82xx_get_table_desc(unirom, section);
1562         if (!tab_desc)
1563                 return NULL;
1564
1565         offset = cpu_to_le32(tab_desc->findex) +
1566             (cpu_to_le32(tab_desc->entry_size) * idx);
1567
1568         return (struct qla82xx_uri_data_desc *)&unirom[offset];
1569 }
1570
1571 static u8 *
1572 qla82xx_get_bootld_offset(struct qla_hw_data *ha)
1573 {
1574         u32 offset = BOOTLD_START;
1575         struct qla82xx_uri_data_desc *uri_desc = NULL;
1576
1577         if (ha->fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
1578                 uri_desc = qla82xx_get_data_desc(ha,
1579                     QLA82XX_URI_DIR_SECT_BOOTLD, QLA82XX_URI_BOOTLD_IDX_OFF);
1580                 if (uri_desc)
1581                         offset = cpu_to_le32(uri_desc->findex);
1582         }
1583
1584         return (u8 *)&ha->hablob->fw->data[offset];
1585 }
1586
1587 static __le32
1588 qla82xx_get_fw_size(struct qla_hw_data *ha)
1589 {
1590         struct qla82xx_uri_data_desc *uri_desc = NULL;
1591
1592         if (ha->fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
1593                 uri_desc =  qla82xx_get_data_desc(ha, QLA82XX_URI_DIR_SECT_FW,
1594                     QLA82XX_URI_FIRMWARE_IDX_OFF);
1595                 if (uri_desc)
1596                         return cpu_to_le32(uri_desc->size);
1597         }
1598
1599         return cpu_to_le32(*(u32 *)&ha->hablob->fw->data[FW_SIZE_OFFSET]);
1600 }
1601
1602 static u8 *
1603 qla82xx_get_fw_offs(struct qla_hw_data *ha)
1604 {
1605         u32 offset = IMAGE_START;
1606         struct qla82xx_uri_data_desc *uri_desc = NULL;
1607
1608         if (ha->fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
1609                 uri_desc = qla82xx_get_data_desc(ha, QLA82XX_URI_DIR_SECT_FW,
1610                         QLA82XX_URI_FIRMWARE_IDX_OFF);
1611                 if (uri_desc)
1612                         offset = cpu_to_le32(uri_desc->findex);
1613         }
1614
1615         return (u8 *)&ha->hablob->fw->data[offset];
1616 }
1617
1618 /* PCI related functions */
1619 int qla82xx_pci_region_offset(struct pci_dev *pdev, int region)
1620 {
1621         unsigned long val = 0;
1622         u32 control;
1623
1624         switch (region) {
1625         case 0:
1626                 val = 0;
1627                 break;
1628         case 1:
1629                 pci_read_config_dword(pdev, QLA82XX_PCI_REG_MSIX_TBL, &control);
1630                 val = control + QLA82XX_MSIX_TBL_SPACE;
1631                 break;
1632         }
1633         return val;
1634 }
1635
1636
1637 int
1638 qla82xx_iospace_config(struct qla_hw_data *ha)
1639 {
1640         uint32_t len = 0;
1641
1642         if (pci_request_regions(ha->pdev, QLA2XXX_DRIVER_NAME)) {
1643                 ql_log_pci(ql_log_fatal, ha->pdev, 0x000c,
1644                     "Failed to reserver selected regions.\n");
1645                 goto iospace_error_exit;
1646         }
1647
1648         /* Use MMIO operations for all accesses. */
1649         if (!(pci_resource_flags(ha->pdev, 0) & IORESOURCE_MEM)) {
1650                 ql_log_pci(ql_log_fatal, ha->pdev, 0x000d,
1651                     "Region #0 not an MMIO resource, aborting.\n");
1652                 goto iospace_error_exit;
1653         }
1654
1655         len = pci_resource_len(ha->pdev, 0);
1656         ha->nx_pcibase =
1657             (unsigned long)ioremap(pci_resource_start(ha->pdev, 0), len);
1658         if (!ha->nx_pcibase) {
1659                 ql_log_pci(ql_log_fatal, ha->pdev, 0x000e,
1660                     "Cannot remap pcibase MMIO, aborting.\n");
1661                 goto iospace_error_exit;
1662         }
1663
1664         /* Mapping of IO base pointer */
1665         if (IS_QLA8044(ha)) {
1666                 ha->iobase =
1667                     (device_reg_t __iomem *)((uint8_t *)ha->nx_pcibase);
1668         } else if (IS_QLA82XX(ha)) {
1669                 ha->iobase =
1670                     (device_reg_t __iomem *)((uint8_t *)ha->nx_pcibase +
1671                         0xbc000 + (ha->pdev->devfn << 11));
1672         }
1673
1674         if (!ql2xdbwr) {
1675                 ha->nxdb_wr_ptr =
1676                     (unsigned long)ioremap((pci_resource_start(ha->pdev, 4) +
1677                     (ha->pdev->devfn << 12)), 4);
1678                 if (!ha->nxdb_wr_ptr) {
1679                         ql_log_pci(ql_log_fatal, ha->pdev, 0x000f,
1680                             "Cannot remap MMIO, aborting.\n");
1681                         goto iospace_error_exit;
1682                 }
1683
1684                 /* Mapping of IO base pointer,
1685                  * door bell read and write pointer
1686                  */
1687                 ha->nxdb_rd_ptr = (uint8_t *) ha->nx_pcibase + (512 * 1024) +
1688                     (ha->pdev->devfn * 8);
1689         } else {
1690                 ha->nxdb_wr_ptr = (ha->pdev->devfn == 6 ?
1691                         QLA82XX_CAMRAM_DB1 :
1692                         QLA82XX_CAMRAM_DB2);
1693         }
1694
1695         ha->max_req_queues = ha->max_rsp_queues = 1;
1696         ha->msix_count = ha->max_rsp_queues + 1;
1697         ql_dbg_pci(ql_dbg_multiq, ha->pdev, 0xc006,
1698             "nx_pci_base=%p iobase=%p "
1699             "max_req_queues=%d msix_count=%d.\n",
1700             (void *)ha->nx_pcibase, ha->iobase,
1701             ha->max_req_queues, ha->msix_count);
1702         ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0010,
1703             "nx_pci_base=%p iobase=%p "
1704             "max_req_queues=%d msix_count=%d.\n",
1705             (void *)ha->nx_pcibase, ha->iobase,
1706             ha->max_req_queues, ha->msix_count);
1707         return 0;
1708
1709 iospace_error_exit:
1710         return -ENOMEM;
1711 }
1712
1713 /* GS related functions */
1714
1715 /* Initialization related functions */
1716
1717 /**
1718  * qla82xx_pci_config() - Setup ISP82xx PCI configuration registers.
1719  * @ha: HA context
1720  *
1721  * Returns 0 on success.
1722 */
1723 int
1724 qla82xx_pci_config(scsi_qla_host_t *vha)
1725 {
1726         struct qla_hw_data *ha = vha->hw;
1727         int ret;
1728
1729         pci_set_master(ha->pdev);
1730         ret = pci_set_mwi(ha->pdev);
1731         ha->chip_revision = ha->pdev->revision;
1732         ql_dbg(ql_dbg_init, vha, 0x0043,
1733             "Chip revision:%d.\n",
1734             ha->chip_revision);
1735         return 0;
1736 }
1737
1738 /**
1739  * qla82xx_reset_chip() - Setup ISP82xx PCI configuration registers.
1740  * @ha: HA context
1741  *
1742  * Returns 0 on success.
1743  */
1744 void
1745 qla82xx_reset_chip(scsi_qla_host_t *vha)
1746 {
1747         struct qla_hw_data *ha = vha->hw;
1748         ha->isp_ops->disable_intrs(ha);
1749 }
1750
1751 void qla82xx_config_rings(struct scsi_qla_host *vha)
1752 {
1753         struct qla_hw_data *ha = vha->hw;
1754         struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
1755         struct init_cb_81xx *icb;
1756         struct req_que *req = ha->req_q_map[0];
1757         struct rsp_que *rsp = ha->rsp_q_map[0];
1758
1759         /* Setup ring parameters in initialization control block. */
1760         icb = (struct init_cb_81xx *)ha->init_cb;
1761         icb->request_q_outpointer = __constant_cpu_to_le16(0);
1762         icb->response_q_inpointer = __constant_cpu_to_le16(0);
1763         icb->request_q_length = cpu_to_le16(req->length);
1764         icb->response_q_length = cpu_to_le16(rsp->length);
1765         icb->request_q_address[0] = cpu_to_le32(LSD(req->dma));
1766         icb->request_q_address[1] = cpu_to_le32(MSD(req->dma));
1767         icb->response_q_address[0] = cpu_to_le32(LSD(rsp->dma));
1768         icb->response_q_address[1] = cpu_to_le32(MSD(rsp->dma));
1769
1770         WRT_REG_DWORD((unsigned long  __iomem *)&reg->req_q_out[0], 0);
1771         WRT_REG_DWORD((unsigned long  __iomem *)&reg->rsp_q_in[0], 0);
1772         WRT_REG_DWORD((unsigned long  __iomem *)&reg->rsp_q_out[0], 0);
1773 }
1774
1775 static int
1776 qla82xx_fw_load_from_blob(struct qla_hw_data *ha)
1777 {
1778         u64 *ptr64;
1779         u32 i, flashaddr, size;
1780         __le64 data;
1781
1782         size = (IMAGE_START - BOOTLD_START) / 8;
1783
1784         ptr64 = (u64 *)qla82xx_get_bootld_offset(ha);
1785         flashaddr = BOOTLD_START;
1786
1787         for (i = 0; i < size; i++) {
1788                 data = cpu_to_le64(ptr64[i]);
1789                 if (qla82xx_pci_mem_write_2M(ha, flashaddr, &data, 8))
1790                         return -EIO;
1791                 flashaddr += 8;
1792         }
1793
1794         flashaddr = FLASH_ADDR_START;
1795         size = (__force u32)qla82xx_get_fw_size(ha) / 8;
1796         ptr64 = (u64 *)qla82xx_get_fw_offs(ha);
1797
1798         for (i = 0; i < size; i++) {
1799                 data = cpu_to_le64(ptr64[i]);
1800
1801                 if (qla82xx_pci_mem_write_2M(ha, flashaddr, &data, 8))
1802                         return -EIO;
1803                 flashaddr += 8;
1804         }
1805         udelay(100);
1806
1807         /* Write a magic value to CAMRAM register
1808          * at a specified offset to indicate
1809          * that all data is written and
1810          * ready for firmware to initialize.
1811          */
1812         qla82xx_wr_32(ha, QLA82XX_CAM_RAM(0x1fc), QLA82XX_BDINFO_MAGIC);
1813
1814         read_lock(&ha->hw_lock);
1815         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x18, 0x1020);
1816         qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0x80001e);
1817         read_unlock(&ha->hw_lock);
1818         return 0;
1819 }
1820
1821 static int
1822 qla82xx_set_product_offset(struct qla_hw_data *ha)
1823 {
1824         struct qla82xx_uri_table_desc *ptab_desc = NULL;
1825         const uint8_t *unirom = ha->hablob->fw->data;
1826         uint32_t i;
1827         __le32 entries;
1828         __le32 flags, file_chiprev, offset;
1829         uint8_t chiprev = ha->chip_revision;
1830         /* Hardcoding mn_present flag for P3P */
1831         int mn_present = 0;
1832         uint32_t flagbit;
1833
1834         ptab_desc = qla82xx_get_table_desc(unirom,
1835                  QLA82XX_URI_DIR_SECT_PRODUCT_TBL);
1836        if (!ptab_desc)
1837                 return -1;
1838
1839         entries = cpu_to_le32(ptab_desc->num_entries);
1840
1841         for (i = 0; i < entries; i++) {
1842                 offset = cpu_to_le32(ptab_desc->findex) +
1843                         (i * cpu_to_le32(ptab_desc->entry_size));
1844                 flags = cpu_to_le32(*((int *)&unirom[offset] +
1845                         QLA82XX_URI_FLAGS_OFF));
1846                 file_chiprev = cpu_to_le32(*((int *)&unirom[offset] +
1847                         QLA82XX_URI_CHIP_REV_OFF));
1848
1849                 flagbit = mn_present ? 1 : 2;
1850
1851                 if ((chiprev == file_chiprev) && ((1ULL << flagbit) & flags)) {
1852                         ha->file_prd_off = offset;
1853                         return 0;
1854                 }
1855         }
1856         return -1;
1857 }
1858
1859 static int
1860 qla82xx_validate_firmware_blob(scsi_qla_host_t *vha, uint8_t fw_type)
1861 {
1862         __le32 val;
1863         uint32_t min_size;
1864         struct qla_hw_data *ha = vha->hw;
1865         const struct firmware *fw = ha->hablob->fw;
1866
1867         ha->fw_type = fw_type;
1868
1869         if (fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
1870                 if (qla82xx_set_product_offset(ha))
1871                         return -EINVAL;
1872
1873                 min_size = QLA82XX_URI_FW_MIN_SIZE;
1874         } else {
1875                 val = cpu_to_le32(*(u32 *)&fw->data[QLA82XX_FW_MAGIC_OFFSET]);
1876                 if ((__force u32)val != QLA82XX_BDINFO_MAGIC)
1877                         return -EINVAL;
1878
1879                 min_size = QLA82XX_FW_MIN_SIZE;
1880         }
1881
1882         if (fw->size < min_size)
1883                 return -EINVAL;
1884         return 0;
1885 }
1886
1887 static int
1888 qla82xx_check_cmdpeg_state(struct qla_hw_data *ha)
1889 {
1890         u32 val = 0;
1891         int retries = 60;
1892         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1893
1894         do {
1895                 read_lock(&ha->hw_lock);
1896                 val = qla82xx_rd_32(ha, CRB_CMDPEG_STATE);
1897                 read_unlock(&ha->hw_lock);
1898
1899                 switch (val) {
1900                 case PHAN_INITIALIZE_COMPLETE:
1901                 case PHAN_INITIALIZE_ACK:
1902                         return QLA_SUCCESS;
1903                 case PHAN_INITIALIZE_FAILED:
1904                         break;
1905                 default:
1906                         break;
1907                 }
1908                 ql_log(ql_log_info, vha, 0x00a8,
1909                     "CRB_CMDPEG_STATE: 0x%x and retries:0x%x.\n",
1910                     val, retries);
1911
1912                 msleep(500);
1913
1914         } while (--retries);
1915
1916         ql_log(ql_log_fatal, vha, 0x00a9,
1917             "Cmd Peg initialization failed: 0x%x.\n", val);
1918
1919         val = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_PEGTUNE_DONE);
1920         read_lock(&ha->hw_lock);
1921         qla82xx_wr_32(ha, CRB_CMDPEG_STATE, PHAN_INITIALIZE_FAILED);
1922         read_unlock(&ha->hw_lock);
1923         return QLA_FUNCTION_FAILED;
1924 }
1925
1926 static int
1927 qla82xx_check_rcvpeg_state(struct qla_hw_data *ha)
1928 {
1929         u32 val = 0;
1930         int retries = 60;
1931         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1932
1933         do {
1934                 read_lock(&ha->hw_lock);
1935                 val = qla82xx_rd_32(ha, CRB_RCVPEG_STATE);
1936                 read_unlock(&ha->hw_lock);
1937
1938                 switch (val) {
1939                 case PHAN_INITIALIZE_COMPLETE:
1940                 case PHAN_INITIALIZE_ACK:
1941                         return QLA_SUCCESS;
1942                 case PHAN_INITIALIZE_FAILED:
1943                         break;
1944                 default:
1945                         break;
1946                 }
1947                 ql_log(ql_log_info, vha, 0x00ab,
1948                     "CRB_RCVPEG_STATE: 0x%x and retries: 0x%x.\n",
1949                     val, retries);
1950
1951                 msleep(500);
1952
1953         } while (--retries);
1954
1955         ql_log(ql_log_fatal, vha, 0x00ac,
1956             "Rcv Peg initializatin failed: 0x%x.\n", val);
1957         read_lock(&ha->hw_lock);
1958         qla82xx_wr_32(ha, CRB_RCVPEG_STATE, PHAN_INITIALIZE_FAILED);
1959         read_unlock(&ha->hw_lock);
1960         return QLA_FUNCTION_FAILED;
1961 }
1962
1963 /* ISR related functions */
1964 static struct qla82xx_legacy_intr_set legacy_intr[] = \
1965         QLA82XX_LEGACY_INTR_CONFIG;
1966
1967 /*
1968  * qla82xx_mbx_completion() - Process mailbox command completions.
1969  * @ha: SCSI driver HA context
1970  * @mb0: Mailbox0 register
1971  */
1972 void
1973 qla82xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
1974 {
1975         uint16_t        cnt;
1976         uint16_t __iomem *wptr;
1977         struct qla_hw_data *ha = vha->hw;
1978         struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
1979         wptr = (uint16_t __iomem *)&reg->mailbox_out[1];
1980
1981         /* Load return mailbox registers. */
1982         ha->flags.mbox_int = 1;
1983         ha->mailbox_out[0] = mb0;
1984
1985         for (cnt = 1; cnt < ha->mbx_count; cnt++) {
1986                 ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
1987                 wptr++;
1988         }
1989
1990         if (!ha->mcp)
1991                 ql_dbg(ql_dbg_async, vha, 0x5053,
1992                     "MBX pointer ERROR.\n");
1993 }
1994
1995 /*
1996  * qla82xx_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
1997  * @irq:
1998  * @dev_id: SCSI driver HA context
1999  * @regs:
2000  *
2001  * Called by system whenever the host adapter generates an interrupt.
2002  *
2003  * Returns handled flag.
2004  */
2005 irqreturn_t
2006 qla82xx_intr_handler(int irq, void *dev_id)
2007 {
2008         scsi_qla_host_t *vha;
2009         struct qla_hw_data *ha;
2010         struct rsp_que *rsp;
2011         struct device_reg_82xx __iomem *reg;
2012         int status = 0, status1 = 0;
2013         unsigned long   flags;
2014         unsigned long   iter;
2015         uint32_t        stat = 0;
2016         uint16_t        mb[4];
2017
2018         rsp = (struct rsp_que *) dev_id;
2019         if (!rsp) {
2020                 ql_log(ql_log_info, NULL, 0xb053,
2021                     "%s: NULL response queue pointer.\n", __func__);
2022                 return IRQ_NONE;
2023         }
2024         ha = rsp->hw;
2025
2026         if (!ha->flags.msi_enabled) {
2027                 status = qla82xx_rd_32(ha, ISR_INT_VECTOR);
2028                 if (!(status & ha->nx_legacy_intr.int_vec_bit))
2029                         return IRQ_NONE;
2030
2031                 status1 = qla82xx_rd_32(ha, ISR_INT_STATE_REG);
2032                 if (!ISR_IS_LEGACY_INTR_TRIGGERED(status1))
2033                         return IRQ_NONE;
2034         }
2035
2036         /* clear the interrupt */
2037         qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_status_reg, 0xffffffff);
2038
2039         /* read twice to ensure write is flushed */
2040         qla82xx_rd_32(ha, ISR_INT_VECTOR);
2041         qla82xx_rd_32(ha, ISR_INT_VECTOR);
2042
2043         reg = &ha->iobase->isp82;
2044
2045         spin_lock_irqsave(&ha->hardware_lock, flags);
2046         vha = pci_get_drvdata(ha->pdev);
2047         for (iter = 1; iter--; ) {
2048
2049                 if (RD_REG_DWORD(&reg->host_int)) {
2050                         stat = RD_REG_DWORD(&reg->host_status);
2051
2052                         switch (stat & 0xff) {
2053                         case 0x1:
2054                         case 0x2:
2055                         case 0x10:
2056                         case 0x11:
2057                                 qla82xx_mbx_completion(vha, MSW(stat));
2058                                 status |= MBX_INTERRUPT;
2059                                 break;
2060                         case 0x12:
2061                                 mb[0] = MSW(stat);
2062                                 mb[1] = RD_REG_WORD(&reg->mailbox_out[1]);
2063                                 mb[2] = RD_REG_WORD(&reg->mailbox_out[2]);
2064                                 mb[3] = RD_REG_WORD(&reg->mailbox_out[3]);
2065                                 qla2x00_async_event(vha, rsp, mb);
2066                                 break;
2067                         case 0x13:
2068                                 qla24xx_process_response_queue(vha, rsp);
2069                                 break;
2070                         default:
2071                                 ql_dbg(ql_dbg_async, vha, 0x5054,
2072                                     "Unrecognized interrupt type (%d).\n",
2073                                     stat & 0xff);
2074                                 break;
2075                         }
2076                 }
2077                 WRT_REG_DWORD(&reg->host_int, 0);
2078         }
2079
2080         qla2x00_handle_mbx_completion(ha, status);
2081         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2082
2083         if (!ha->flags.msi_enabled)
2084                 qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0xfbff);
2085
2086         return IRQ_HANDLED;
2087 }
2088
2089 irqreturn_t
2090 qla82xx_msix_default(int irq, void *dev_id)
2091 {
2092         scsi_qla_host_t *vha;
2093         struct qla_hw_data *ha;
2094         struct rsp_que *rsp;
2095         struct device_reg_82xx __iomem *reg;
2096         int status = 0;
2097         unsigned long flags;
2098         uint32_t stat = 0;
2099         uint16_t mb[4];
2100
2101         rsp = (struct rsp_que *) dev_id;
2102         if (!rsp) {
2103                 printk(KERN_INFO
2104                         "%s(): NULL response queue pointer.\n", __func__);
2105                 return IRQ_NONE;
2106         }
2107         ha = rsp->hw;
2108
2109         reg = &ha->iobase->isp82;
2110
2111         spin_lock_irqsave(&ha->hardware_lock, flags);
2112         vha = pci_get_drvdata(ha->pdev);
2113         do {
2114                 if (RD_REG_DWORD(&reg->host_int)) {
2115                         stat = RD_REG_DWORD(&reg->host_status);
2116
2117                         switch (stat & 0xff) {
2118                         case 0x1:
2119                         case 0x2:
2120                         case 0x10:
2121                         case 0x11:
2122                                 qla82xx_mbx_completion(vha, MSW(stat));
2123                                 status |= MBX_INTERRUPT;
2124                                 break;
2125                         case 0x12:
2126                                 mb[0] = MSW(stat);
2127                                 mb[1] = RD_REG_WORD(&reg->mailbox_out[1]);
2128                                 mb[2] = RD_REG_WORD(&reg->mailbox_out[2]);
2129                                 mb[3] = RD_REG_WORD(&reg->mailbox_out[3]);
2130                                 qla2x00_async_event(vha, rsp, mb);
2131                                 break;
2132                         case 0x13:
2133                                 qla24xx_process_response_queue(vha, rsp);
2134                                 break;
2135                         default:
2136                                 ql_dbg(ql_dbg_async, vha, 0x5041,
2137                                     "Unrecognized interrupt type (%d).\n",
2138                                     stat & 0xff);
2139                                 break;
2140                         }
2141                 }
2142                 WRT_REG_DWORD(&reg->host_int, 0);
2143         } while (0);
2144
2145         qla2x00_handle_mbx_completion(ha, status);
2146         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2147
2148         return IRQ_HANDLED;
2149 }
2150
2151 irqreturn_t
2152 qla82xx_msix_rsp_q(int irq, void *dev_id)
2153 {
2154         scsi_qla_host_t *vha;
2155         struct qla_hw_data *ha;
2156         struct rsp_que *rsp;
2157         struct device_reg_82xx __iomem *reg;
2158         unsigned long flags;
2159
2160         rsp = (struct rsp_que *) dev_id;
2161         if (!rsp) {
2162                 printk(KERN_INFO
2163                         "%s(): NULL response queue pointer.\n", __func__);
2164                 return IRQ_NONE;
2165         }
2166
2167         ha = rsp->hw;
2168         reg = &ha->iobase->isp82;
2169         spin_lock_irqsave(&ha->hardware_lock, flags);
2170         vha = pci_get_drvdata(ha->pdev);
2171         qla24xx_process_response_queue(vha, rsp);
2172         WRT_REG_DWORD(&reg->host_int, 0);
2173         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2174         return IRQ_HANDLED;
2175 }
2176
2177 void
2178 qla82xx_poll(int irq, void *dev_id)
2179 {
2180         scsi_qla_host_t *vha;
2181         struct qla_hw_data *ha;
2182         struct rsp_que *rsp;
2183         struct device_reg_82xx __iomem *reg;
2184         int status = 0;
2185         uint32_t stat;
2186         uint16_t mb[4];
2187         unsigned long flags;
2188
2189         rsp = (struct rsp_que *) dev_id;
2190         if (!rsp) {
2191                 printk(KERN_INFO
2192                         "%s(): NULL response queue pointer.\n", __func__);
2193                 return;
2194         }
2195         ha = rsp->hw;
2196
2197         reg = &ha->iobase->isp82;
2198         spin_lock_irqsave(&ha->hardware_lock, flags);
2199         vha = pci_get_drvdata(ha->pdev);
2200
2201         if (RD_REG_DWORD(&reg->host_int)) {
2202                 stat = RD_REG_DWORD(&reg->host_status);
2203                 switch (stat & 0xff) {
2204                 case 0x1:
2205                 case 0x2:
2206                 case 0x10:
2207                 case 0x11:
2208                         qla82xx_mbx_completion(vha, MSW(stat));
2209                         status |= MBX_INTERRUPT;
2210                         break;
2211                 case 0x12:
2212                         mb[0] = MSW(stat);
2213                         mb[1] = RD_REG_WORD(&reg->mailbox_out[1]);
2214                         mb[2] = RD_REG_WORD(&reg->mailbox_out[2]);
2215                         mb[3] = RD_REG_WORD(&reg->mailbox_out[3]);
2216                         qla2x00_async_event(vha, rsp, mb);
2217                         break;
2218                 case 0x13:
2219                         qla24xx_process_response_queue(vha, rsp);
2220                         break;
2221                 default:
2222                         ql_dbg(ql_dbg_p3p, vha, 0xb013,
2223                             "Unrecognized interrupt type (%d).\n",
2224                             stat * 0xff);
2225                         break;
2226                 }
2227         }
2228         WRT_REG_DWORD(&reg->host_int, 0);
2229         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2230 }
2231
2232 void
2233 qla82xx_enable_intrs(struct qla_hw_data *ha)
2234 {
2235         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2236         qla82xx_mbx_intr_enable(vha);
2237         spin_lock_irq(&ha->hardware_lock);
2238         if (IS_QLA8044(ha))
2239                 qla8044_wr_reg(ha, LEG_INTR_MASK_OFFSET, 0);
2240         else
2241                 qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0xfbff);
2242         spin_unlock_irq(&ha->hardware_lock);
2243         ha->interrupts_on = 1;
2244 }
2245
2246 void
2247 qla82xx_disable_intrs(struct qla_hw_data *ha)
2248 {
2249         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2250         qla82xx_mbx_intr_disable(vha);
2251         spin_lock_irq(&ha->hardware_lock);
2252         if (IS_QLA8044(ha))
2253                 qla8044_wr_reg(ha, LEG_INTR_MASK_OFFSET, 1);
2254         else
2255                 qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0x0400);
2256         spin_unlock_irq(&ha->hardware_lock);
2257         ha->interrupts_on = 0;
2258 }
2259
2260 void qla82xx_init_flags(struct qla_hw_data *ha)
2261 {
2262         struct qla82xx_legacy_intr_set *nx_legacy_intr;
2263
2264         /* ISP 8021 initializations */
2265         rwlock_init(&ha->hw_lock);
2266         ha->qdr_sn_window = -1;
2267         ha->ddr_mn_window = -1;
2268         ha->curr_window = 255;
2269         ha->portnum = PCI_FUNC(ha->pdev->devfn);
2270         nx_legacy_intr = &legacy_intr[ha->portnum];
2271         ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit;
2272         ha->nx_legacy_intr.tgt_status_reg = nx_legacy_intr->tgt_status_reg;
2273         ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg;
2274         ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg;
2275 }
2276
2277 inline void
2278 qla82xx_set_idc_version(scsi_qla_host_t *vha)
2279 {
2280         int idc_ver;
2281         uint32_t drv_active;
2282         struct qla_hw_data *ha = vha->hw;
2283
2284         drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2285         if (drv_active == (QLA82XX_DRV_ACTIVE << (ha->portnum * 4))) {
2286                 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION,
2287                     QLA82XX_IDC_VERSION);
2288                 ql_log(ql_log_info, vha, 0xb082,
2289                     "IDC version updated to %d\n", QLA82XX_IDC_VERSION);
2290         } else {
2291                 idc_ver = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_IDC_VERSION);
2292                 if (idc_ver != QLA82XX_IDC_VERSION)
2293                         ql_log(ql_log_info, vha, 0xb083,
2294                             "qla2xxx driver IDC version %d is not compatible "
2295                             "with IDC version %d of the other drivers\n",
2296                             QLA82XX_IDC_VERSION, idc_ver);
2297         }
2298 }
2299
2300 inline void
2301 qla82xx_set_drv_active(scsi_qla_host_t *vha)
2302 {
2303         uint32_t drv_active;
2304         struct qla_hw_data *ha = vha->hw;
2305
2306         drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2307
2308         /* If reset value is all FF's, initialize DRV_ACTIVE */
2309         if (drv_active == 0xffffffff) {
2310                 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE,
2311                         QLA82XX_DRV_NOT_ACTIVE);
2312                 drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2313         }
2314         drv_active |= (QLA82XX_DRV_ACTIVE << (ha->portnum * 4));
2315         qla82xx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE, drv_active);
2316 }
2317
2318 inline void
2319 qla82xx_clear_drv_active(struct qla_hw_data *ha)
2320 {
2321         uint32_t drv_active;
2322
2323         drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2324         drv_active &= ~(QLA82XX_DRV_ACTIVE << (ha->portnum * 4));
2325         qla82xx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE, drv_active);
2326 }
2327
2328 static inline int
2329 qla82xx_need_reset(struct qla_hw_data *ha)
2330 {
2331         uint32_t drv_state;
2332         int rval;
2333
2334         if (ha->flags.nic_core_reset_owner)
2335                 return 1;
2336         else {
2337                 drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2338                 rval = drv_state & (QLA82XX_DRVST_RST_RDY << (ha->portnum * 4));
2339                 return rval;
2340         }
2341 }
2342
2343 static inline void
2344 qla82xx_set_rst_ready(struct qla_hw_data *ha)
2345 {
2346         uint32_t drv_state;
2347         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2348
2349         drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2350
2351         /* If reset value is all FF's, initialize DRV_STATE */
2352         if (drv_state == 0xffffffff) {
2353                 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, QLA82XX_DRVST_NOT_RDY);
2354                 drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2355         }
2356         drv_state |= (QLA82XX_DRVST_RST_RDY << (ha->portnum * 4));
2357         ql_dbg(ql_dbg_init, vha, 0x00bb,
2358             "drv_state = 0x%08x.\n", drv_state);
2359         qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, drv_state);
2360 }
2361
2362 static inline void
2363 qla82xx_clear_rst_ready(struct qla_hw_data *ha)
2364 {
2365         uint32_t drv_state;
2366
2367         drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2368         drv_state &= ~(QLA82XX_DRVST_RST_RDY << (ha->portnum * 4));
2369         qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, drv_state);
2370 }
2371
2372 static inline void
2373 qla82xx_set_qsnt_ready(struct qla_hw_data *ha)
2374 {
2375         uint32_t qsnt_state;
2376
2377         qsnt_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2378         qsnt_state |= (QLA82XX_DRVST_QSNT_RDY << (ha->portnum * 4));
2379         qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, qsnt_state);
2380 }
2381
2382 void
2383 qla82xx_clear_qsnt_ready(scsi_qla_host_t *vha)
2384 {
2385         struct qla_hw_data *ha = vha->hw;
2386         uint32_t qsnt_state;
2387
2388         qsnt_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2389         qsnt_state &= ~(QLA82XX_DRVST_QSNT_RDY << (ha->portnum * 4));
2390         qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, qsnt_state);
2391 }
2392
2393 static int
2394 qla82xx_load_fw(scsi_qla_host_t *vha)
2395 {
2396         int rst;
2397         struct fw_blob *blob;
2398         struct qla_hw_data *ha = vha->hw;
2399
2400         if (qla82xx_pinit_from_rom(vha) != QLA_SUCCESS) {
2401                 ql_log(ql_log_fatal, vha, 0x009f,
2402                     "Error during CRB initialization.\n");
2403                 return QLA_FUNCTION_FAILED;
2404         }
2405         udelay(500);
2406
2407         /* Bring QM and CAMRAM out of reset */
2408         rst = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET);
2409         rst &= ~((1 << 28) | (1 << 24));
2410         qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, rst);
2411
2412         /*
2413          * FW Load priority:
2414          * 1) Operational firmware residing in flash.
2415          * 2) Firmware via request-firmware interface (.bin file).
2416          */
2417         if (ql2xfwloadbin == 2)
2418                 goto try_blob_fw;
2419
2420         ql_log(ql_log_info, vha, 0x00a0,
2421             "Attempting to load firmware from flash.\n");
2422
2423         if (qla82xx_fw_load_from_flash(ha) == QLA_SUCCESS) {
2424                 ql_log(ql_log_info, vha, 0x00a1,
2425                     "Firmware loaded successfully from flash.\n");
2426                 return QLA_SUCCESS;
2427         } else {
2428                 ql_log(ql_log_warn, vha, 0x0108,
2429                     "Firmware load from flash failed.\n");
2430         }
2431
2432 try_blob_fw:
2433         ql_log(ql_log_info, vha, 0x00a2,
2434             "Attempting to load firmware from blob.\n");
2435
2436         /* Load firmware blob. */
2437         blob = ha->hablob = qla2x00_request_firmware(vha);
2438         if (!blob) {
2439                 ql_log(ql_log_fatal, vha, 0x00a3,
2440                     "Firmware image not present.\n");
2441                 goto fw_load_failed;
2442         }
2443
2444         /* Validating firmware blob */
2445         if (qla82xx_validate_firmware_blob(vha,
2446                 QLA82XX_FLASH_ROMIMAGE)) {
2447                 /* Fallback to URI format */
2448                 if (qla82xx_validate_firmware_blob(vha,
2449                         QLA82XX_UNIFIED_ROMIMAGE)) {
2450                         ql_log(ql_log_fatal, vha, 0x00a4,
2451                             "No valid firmware image found.\n");
2452                         return QLA_FUNCTION_FAILED;
2453                 }
2454         }
2455
2456         if (qla82xx_fw_load_from_blob(ha) == QLA_SUCCESS) {
2457                 ql_log(ql_log_info, vha, 0x00a5,
2458                     "Firmware loaded successfully from binary blob.\n");
2459                 return QLA_SUCCESS;
2460         } else {
2461                 ql_log(ql_log_fatal, vha, 0x00a6,
2462                     "Firmware load failed for binary blob.\n");
2463                 blob->fw = NULL;
2464                 blob = NULL;
2465                 goto fw_load_failed;
2466         }
2467         return QLA_SUCCESS;
2468
2469 fw_load_failed:
2470         return QLA_FUNCTION_FAILED;
2471 }
2472
2473 int
2474 qla82xx_start_firmware(scsi_qla_host_t *vha)
2475 {
2476         uint16_t      lnk;
2477         struct qla_hw_data *ha = vha->hw;
2478
2479         /* scrub dma mask expansion register */
2480         qla82xx_wr_32(ha, CRB_DMA_SHIFT, QLA82XX_DMA_SHIFT_VALUE);
2481
2482         /* Put both the PEG CMD and RCV PEG to default state
2483          * of 0 before resetting the hardware
2484          */
2485         qla82xx_wr_32(ha, CRB_CMDPEG_STATE, 0);
2486         qla82xx_wr_32(ha, CRB_RCVPEG_STATE, 0);
2487
2488         /* Overwrite stale initialization register values */
2489         qla82xx_wr_32(ha, QLA82XX_PEG_HALT_STATUS1, 0);
2490         qla82xx_wr_32(ha, QLA82XX_PEG_HALT_STATUS2, 0);
2491
2492         if (qla82xx_load_fw(vha) != QLA_SUCCESS) {
2493                 ql_log(ql_log_fatal, vha, 0x00a7,
2494                     "Error trying to start fw.\n");
2495                 return QLA_FUNCTION_FAILED;
2496         }
2497
2498         /* Handshake with the card before we register the devices. */
2499         if (qla82xx_check_cmdpeg_state(ha) != QLA_SUCCESS) {
2500                 ql_log(ql_log_fatal, vha, 0x00aa,
2501                     "Error during card handshake.\n");
2502                 return QLA_FUNCTION_FAILED;
2503         }
2504
2505         /* Negotiated Link width */
2506         pcie_capability_read_word(ha->pdev, PCI_EXP_LNKSTA, &lnk);
2507         ha->link_width = (lnk >> 4) & 0x3f;
2508
2509         /* Synchronize with Receive peg */
2510         return qla82xx_check_rcvpeg_state(ha);
2511 }
2512
2513 static uint32_t *
2514 qla82xx_read_flash_data(scsi_qla_host_t *vha, uint32_t *dwptr, uint32_t faddr,
2515         uint32_t length)
2516 {
2517         uint32_t i;
2518         uint32_t val;
2519         struct qla_hw_data *ha = vha->hw;
2520
2521         /* Dword reads to flash. */
2522         for (i = 0; i < length/4; i++, faddr += 4) {
2523                 if (qla82xx_rom_fast_read(ha, faddr, &val)) {
2524                         ql_log(ql_log_warn, vha, 0x0106,
2525                             "Do ROM fast read failed.\n");
2526                         goto done_read;
2527                 }
2528                 dwptr[i] = __constant_cpu_to_le32(val);
2529         }
2530 done_read:
2531         return dwptr;
2532 }
2533
2534 static int
2535 qla82xx_unprotect_flash(struct qla_hw_data *ha)
2536 {
2537         int ret;
2538         uint32_t val;
2539         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2540
2541         ret = ql82xx_rom_lock_d(ha);
2542         if (ret < 0) {
2543                 ql_log(ql_log_warn, vha, 0xb014,
2544                     "ROM Lock failed.\n");
2545                 return ret;
2546         }
2547
2548         ret = qla82xx_read_status_reg(ha, &val);
2549         if (ret < 0)
2550                 goto done_unprotect;
2551
2552         val &= ~(BLOCK_PROTECT_BITS << 2);
2553         ret = qla82xx_write_status_reg(ha, val);
2554         if (ret < 0) {
2555                 val |= (BLOCK_PROTECT_BITS << 2);
2556                 qla82xx_write_status_reg(ha, val);
2557         }
2558
2559         if (qla82xx_write_disable_flash(ha) != 0)
2560                 ql_log(ql_log_warn, vha, 0xb015,
2561                     "Write disable failed.\n");
2562
2563 done_unprotect:
2564         qla82xx_rom_unlock(ha);
2565         return ret;
2566 }
2567
2568 static int
2569 qla82xx_protect_flash(struct qla_hw_data *ha)
2570 {
2571         int ret;
2572         uint32_t val;
2573         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2574
2575         ret = ql82xx_rom_lock_d(ha);
2576         if (ret < 0) {
2577                 ql_log(ql_log_warn, vha, 0xb016,
2578                     "ROM Lock failed.\n");
2579                 return ret;
2580         }
2581
2582         ret = qla82xx_read_status_reg(ha, &val);
2583         if (ret < 0)
2584                 goto done_protect;
2585
2586         val |= (BLOCK_PROTECT_BITS << 2);
2587         /* LOCK all sectors */
2588         ret = qla82xx_write_status_reg(ha, val);
2589         if (ret < 0)
2590                 ql_log(ql_log_warn, vha, 0xb017,
2591                     "Write status register failed.\n");
2592
2593         if (qla82xx_write_disable_flash(ha) != 0)
2594                 ql_log(ql_log_warn, vha, 0xb018,
2595                     "Write disable failed.\n");
2596 done_protect:
2597         qla82xx_rom_unlock(ha);
2598         return ret;
2599 }
2600
2601 static int
2602 qla82xx_erase_sector(struct qla_hw_data *ha, int addr)
2603 {
2604         int ret = 0;
2605         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2606
2607         ret = ql82xx_rom_lock_d(ha);
2608         if (ret < 0) {
2609                 ql_log(ql_log_warn, vha, 0xb019,
2610                     "ROM Lock failed.\n");
2611                 return ret;
2612         }
2613
2614         qla82xx_flash_set_write_enable(ha);
2615         qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ADDRESS, addr);
2616         qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 3);
2617         qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_SE);
2618
2619         if (qla82xx_wait_rom_done(ha)) {
2620                 ql_log(ql_log_warn, vha, 0xb01a,
2621                     "Error waiting for rom done.\n");
2622                 ret = -1;
2623                 goto done;
2624         }
2625         ret = qla82xx_flash_wait_write_finish(ha);
2626 done:
2627         qla82xx_rom_unlock(ha);
2628         return ret;
2629 }
2630
2631 /*
2632  * Address and length are byte address
2633  */
2634 uint8_t *
2635 qla82xx_read_optrom_data(struct scsi_qla_host *vha, uint8_t *buf,
2636         uint32_t offset, uint32_t length)
2637 {
2638         scsi_block_requests(vha->host);
2639         qla82xx_read_flash_data(vha, (uint32_t *)buf, offset, length);
2640         scsi_unblock_requests(vha->host);
2641         return buf;
2642 }
2643
2644 static int
2645 qla82xx_write_flash_data(struct scsi_qla_host *vha, uint32_t *dwptr,
2646         uint32_t faddr, uint32_t dwords)
2647 {
2648         int ret;
2649         uint32_t liter;
2650         uint32_t sec_mask, rest_addr;
2651         dma_addr_t optrom_dma;
2652         void *optrom = NULL;
2653         int page_mode = 0;
2654         struct qla_hw_data *ha = vha->hw;
2655
2656         ret = -1;
2657
2658         /* Prepare burst-capable write on supported ISPs. */
2659         if (page_mode && !(faddr & 0xfff) &&
2660             dwords > OPTROM_BURST_DWORDS) {
2661                 optrom = dma_alloc_coherent(&ha->pdev->dev, OPTROM_BURST_SIZE,
2662                     &optrom_dma, GFP_KERNEL);
2663                 if (!optrom) {
2664                         ql_log(ql_log_warn, vha, 0xb01b,
2665                             "Unable to allocate memory "
2666                             "for optrom burst write (%x KB).\n",
2667                             OPTROM_BURST_SIZE / 1024);
2668                 }
2669         }
2670
2671         rest_addr = ha->fdt_block_size - 1;
2672         sec_mask = ~rest_addr;
2673
2674         ret = qla82xx_unprotect_flash(ha);
2675         if (ret) {
2676                 ql_log(ql_log_warn, vha, 0xb01c,
2677                     "Unable to unprotect flash for update.\n");
2678                 goto write_done;
2679         }
2680
2681         for (liter = 0; liter < dwords; liter++, faddr += 4, dwptr++) {
2682                 /* Are we at the beginning of a sector? */
2683                 if ((faddr & rest_addr) == 0) {
2684
2685                         ret = qla82xx_erase_sector(ha, faddr);
2686                         if (ret) {
2687                                 ql_log(ql_log_warn, vha, 0xb01d,
2688                                     "Unable to erase sector: address=%x.\n",
2689                                     faddr);
2690                                 break;
2691                         }
2692                 }
2693
2694                 /* Go with burst-write. */
2695                 if (optrom && (liter + OPTROM_BURST_DWORDS) <= dwords) {
2696                         /* Copy data to DMA'ble buffer. */
2697                         memcpy(optrom, dwptr, OPTROM_BURST_SIZE);
2698
2699                         ret = qla2x00_load_ram(vha, optrom_dma,
2700                             (ha->flash_data_off | faddr),
2701                             OPTROM_BURST_DWORDS);
2702                         if (ret != QLA_SUCCESS) {
2703                                 ql_log(ql_log_warn, vha, 0xb01e,
2704                                     "Unable to burst-write optrom segment "
2705                                     "(%x/%x/%llx).\n", ret,
2706                                     (ha->flash_data_off | faddr),
2707                                     (unsigned long long)optrom_dma);
2708                                 ql_log(ql_log_warn, vha, 0xb01f,
2709                                     "Reverting to slow-write.\n");
2710
2711                                 dma_free_coherent(&ha->pdev->dev,
2712                                     OPTROM_BURST_SIZE, optrom, optrom_dma);
2713                                 optrom = NULL;
2714                         } else {
2715                                 liter += OPTROM_BURST_DWORDS - 1;
2716                                 faddr += OPTROM_BURST_DWORDS - 1;
2717                                 dwptr += OPTROM_BURST_DWORDS - 1;
2718                                 continue;
2719                         }
2720                 }
2721
2722                 ret = qla82xx_write_flash_dword(ha, faddr,
2723                     cpu_to_le32(*dwptr));
2724                 if (ret) {
2725                         ql_dbg(ql_dbg_p3p, vha, 0xb020,
2726                             "Unable to program flash address=%x data=%x.\n",
2727                             faddr, *dwptr);
2728                         break;
2729                 }
2730         }
2731
2732         ret = qla82xx_protect_flash(ha);
2733         if (ret)
2734                 ql_log(ql_log_warn, vha, 0xb021,
2735                     "Unable to protect flash after update.\n");
2736 write_done:
2737         if (optrom)
2738                 dma_free_coherent(&ha->pdev->dev,
2739                     OPTROM_BURST_SIZE, optrom, optrom_dma);
2740         return ret;
2741 }
2742
2743 int
2744 qla82xx_write_optrom_data(struct scsi_qla_host *vha, uint8_t *buf,
2745         uint32_t offset, uint32_t length)
2746 {
2747         int rval;
2748
2749         /* Suspend HBA. */
2750         scsi_block_requests(vha->host);
2751         rval = qla82xx_write_flash_data(vha, (uint32_t *)buf, offset,
2752                 length >> 2);
2753         scsi_unblock_requests(vha->host);
2754
2755         /* Convert return ISP82xx to generic */
2756         if (rval)
2757                 rval = QLA_FUNCTION_FAILED;
2758         else
2759                 rval = QLA_SUCCESS;
2760         return rval;
2761 }
2762
2763 void
2764 qla82xx_start_iocbs(scsi_qla_host_t *vha)
2765 {
2766         struct qla_hw_data *ha = vha->hw;
2767         struct req_que *req = ha->req_q_map[0];
2768         struct device_reg_82xx __iomem *reg;
2769         uint32_t dbval;
2770
2771         /* Adjust ring index. */
2772         req->ring_index++;
2773         if (req->ring_index == req->length) {
2774                 req->ring_index = 0;
2775                 req->ring_ptr = req->ring;
2776         } else
2777                 req->ring_ptr++;
2778
2779         reg = &ha->iobase->isp82;
2780         dbval = 0x04 | (ha->portnum << 5);
2781
2782         dbval = dbval | (req->id << 8) | (req->ring_index << 16);
2783         if (ql2xdbwr)
2784                 qla82xx_wr_32(ha, ha->nxdb_wr_ptr, dbval);
2785         else {
2786                 WRT_REG_DWORD((unsigned long __iomem *)ha->nxdb_wr_ptr, dbval);
2787                 wmb();
2788                 while (RD_REG_DWORD((void __iomem *)ha->nxdb_rd_ptr) != dbval) {
2789                         WRT_REG_DWORD((unsigned long  __iomem *)ha->nxdb_wr_ptr,
2790                                 dbval);
2791                         wmb();
2792                 }
2793         }
2794 }
2795
2796 static void
2797 qla82xx_rom_lock_recovery(struct qla_hw_data *ha)
2798 {
2799         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2800
2801         if (qla82xx_rom_lock(ha))
2802                 /* Someone else is holding the lock. */
2803                 ql_log(ql_log_info, vha, 0xb022,
2804                     "Resetting rom_lock.\n");
2805
2806         /*
2807          * Either we got the lock, or someone
2808          * else died while holding it.
2809          * In either case, unlock.
2810          */
2811         qla82xx_rom_unlock(ha);
2812 }
2813
2814 /*
2815  * qla82xx_device_bootstrap
2816  *    Initialize device, set DEV_READY, start fw
2817  *
2818  * Note:
2819  *      IDC lock must be held upon entry
2820  *
2821  * Return:
2822  *    Success : 0
2823  *    Failed  : 1
2824  */
2825 static int
2826 qla82xx_device_bootstrap(scsi_qla_host_t *vha)
2827 {
2828         int rval = QLA_SUCCESS;
2829         int i, timeout;
2830         uint32_t old_count, count;
2831         struct qla_hw_data *ha = vha->hw;
2832         int need_reset = 0, peg_stuck = 1;
2833
2834         need_reset = qla82xx_need_reset(ha);
2835
2836         old_count = qla82xx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER);
2837
2838         for (i = 0; i < 10; i++) {
2839                 timeout = msleep_interruptible(200);
2840                 if (timeout) {
2841                         qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
2842                                 QLA8XXX_DEV_FAILED);
2843                         return QLA_FUNCTION_FAILED;
2844                 }
2845
2846                 count = qla82xx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER);
2847                 if (count != old_count)
2848                         peg_stuck = 0;
2849         }
2850
2851         if (need_reset) {
2852                 /* We are trying to perform a recovery here. */
2853                 if (peg_stuck)
2854                         qla82xx_rom_lock_recovery(ha);
2855                 goto dev_initialize;
2856         } else  {
2857                 /* Start of day for this ha context. */
2858                 if (peg_stuck) {
2859                         /* Either we are the first or recovery in progress. */
2860                         qla82xx_rom_lock_recovery(ha);
2861                         goto dev_initialize;
2862                 } else
2863                         /* Firmware already running. */
2864                         goto dev_ready;
2865         }
2866
2867         return rval;
2868
2869 dev_initialize:
2870         /* set to DEV_INITIALIZING */
2871         ql_log(ql_log_info, vha, 0x009e,
2872             "HW State: INITIALIZING.\n");
2873         qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_INITIALIZING);
2874
2875         qla82xx_idc_unlock(ha);
2876         rval = qla82xx_start_firmware(vha);
2877         qla82xx_idc_lock(ha);
2878
2879         if (rval != QLA_SUCCESS) {
2880                 ql_log(ql_log_fatal, vha, 0x00ad,
2881                     "HW State: FAILED.\n");
2882                 qla82xx_clear_drv_active(ha);
2883                 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_FAILED);
2884                 return rval;
2885         }
2886
2887 dev_ready:
2888         ql_log(ql_log_info, vha, 0x00ae,
2889             "HW State: READY.\n");
2890         qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_READY);
2891
2892         return QLA_SUCCESS;
2893 }
2894
2895 /*
2896 * qla82xx_need_qsnt_handler
2897 *    Code to start quiescence sequence
2898 *
2899 * Note:
2900 *      IDC lock must be held upon entry
2901 *
2902 * Return: void
2903 */
2904
2905 static void
2906 qla82xx_need_qsnt_handler(scsi_qla_host_t *vha)
2907 {
2908         struct qla_hw_data *ha = vha->hw;
2909         uint32_t dev_state, drv_state, drv_active;
2910         unsigned long reset_timeout;
2911
2912         if (vha->flags.online) {
2913                 /*Block any further I/O and wait for pending cmnds to complete*/
2914                 qla2x00_quiesce_io(vha);
2915         }
2916
2917         /* Set the quiescence ready bit */
2918         qla82xx_set_qsnt_ready(ha);
2919
2920         /*wait for 30 secs for other functions to ack */
2921         reset_timeout = jiffies + (30 * HZ);
2922
2923         drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2924         drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2925         /* Its 2 that is written when qsnt is acked, moving one bit */
2926         drv_active = drv_active << 0x01;
2927
2928         while (drv_state != drv_active) {
2929
2930                 if (time_after_eq(jiffies, reset_timeout)) {
2931                         /* quiescence timeout, other functions didn't ack
2932                          * changing the state to DEV_READY
2933                          */
2934                         ql_log(ql_log_info, vha, 0xb023,
2935                             "%s : QUIESCENT TIMEOUT DRV_ACTIVE:%d "
2936                             "DRV_STATE:%d.\n", QLA2XXX_DRIVER_NAME,
2937                             drv_active, drv_state);
2938                         qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
2939                             QLA8XXX_DEV_READY);
2940                         ql_log(ql_log_info, vha, 0xb025,
2941                             "HW State: DEV_READY.\n");
2942                         qla82xx_idc_unlock(ha);
2943                         qla2x00_perform_loop_resync(vha);
2944                         qla82xx_idc_lock(ha);
2945
2946                         qla82xx_clear_qsnt_ready(vha);
2947                         return;
2948                 }
2949
2950                 qla82xx_idc_unlock(ha);
2951                 msleep(1000);
2952                 qla82xx_idc_lock(ha);
2953
2954                 drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2955                 drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2956                 drv_active = drv_active << 0x01;
2957         }
2958         dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
2959         /* everyone acked so set the state to DEV_QUIESCENCE */
2960         if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT) {
2961                 ql_log(ql_log_info, vha, 0xb026,
2962                     "HW State: DEV_QUIESCENT.\n");
2963                 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_QUIESCENT);
2964         }
2965 }
2966
2967 /*
2968 * qla82xx_wait_for_state_change
2969 *    Wait for device state to change from given current state
2970 *
2971 * Note:
2972 *     IDC lock must not be held upon entry
2973 *
2974 * Return:
2975 *    Changed device state.
2976 */
2977 uint32_t
2978 qla82xx_wait_for_state_change(scsi_qla_host_t *vha, uint32_t curr_state)
2979 {
2980         struct qla_hw_data *ha = vha->hw;
2981         uint32_t dev_state;
2982
2983         do {
2984                 msleep(1000);
2985                 qla82xx_idc_lock(ha);
2986                 dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
2987                 qla82xx_idc_unlock(ha);
2988         } while (dev_state == curr_state);
2989
2990         return dev_state;
2991 }
2992
2993 void
2994 qla8xxx_dev_failed_handler(scsi_qla_host_t *vha)
2995 {
2996         struct qla_hw_data *ha = vha->hw;
2997
2998         /* Disable the board */
2999         ql_log(ql_log_fatal, vha, 0x00b8,
3000             "Disabling the board.\n");
3001
3002         if (IS_QLA82XX(ha)) {
3003                 qla82xx_clear_drv_active(ha);
3004                 qla82xx_idc_unlock(ha);
3005         } else if (IS_QLA8044(ha)) {
3006                 qla8044_clear_drv_active(vha);
3007                 qla8044_idc_unlock(ha);
3008         }
3009
3010         /* Set DEV_FAILED flag to disable timer */
3011         vha->device_flags |= DFLG_DEV_FAILED;
3012         qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
3013         qla2x00_mark_all_devices_lost(vha, 0);
3014         vha->flags.online = 0;
3015         vha->flags.init_done = 0;
3016 }
3017
3018 /*
3019  * qla82xx_need_reset_handler
3020  *    Code to start reset sequence
3021  *
3022  * Note:
3023  *      IDC lock must be held upon entry
3024  *
3025  * Return:
3026  *    Success : 0
3027  *    Failed  : 1
3028  */
3029 static void
3030 qla82xx_need_reset_handler(scsi_qla_host_t *vha)
3031 {
3032         uint32_t dev_state, drv_state, drv_active;
3033         uint32_t active_mask = 0;
3034         unsigned long reset_timeout;
3035         struct qla_hw_data *ha = vha->hw;
3036         struct req_que *req = ha->req_q_map[0];
3037
3038         if (vha->flags.online) {
3039                 qla82xx_idc_unlock(ha);
3040                 qla2x00_abort_isp_cleanup(vha);
3041                 ha->isp_ops->get_flash_version(vha, req->ring);
3042                 ha->isp_ops->nvram_config(vha);
3043                 qla82xx_idc_lock(ha);
3044         }
3045
3046         drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3047         if (!ha->flags.nic_core_reset_owner) {
3048                 ql_dbg(ql_dbg_p3p, vha, 0xb028,
3049                     "reset_acknowledged by 0x%x\n", ha->portnum);
3050                 qla82xx_set_rst_ready(ha);
3051         } else {
3052                 active_mask = ~(QLA82XX_DRV_ACTIVE << (ha->portnum * 4));
3053                 drv_active &= active_mask;
3054                 ql_dbg(ql_dbg_p3p, vha, 0xb029,
3055                     "active_mask: 0x%08x\n", active_mask);
3056         }
3057
3058         /* wait for 10 seconds for reset ack from all functions */
3059         reset_timeout = jiffies + (ha->fcoe_reset_timeout * HZ);
3060
3061         drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
3062         drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3063         dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3064
3065         ql_dbg(ql_dbg_p3p, vha, 0xb02a,
3066             "drv_state: 0x%08x, drv_active: 0x%08x, "
3067             "dev_state: 0x%08x, active_mask: 0x%08x\n",
3068             drv_state, drv_active, dev_state, active_mask);
3069
3070         while (drv_state != drv_active &&
3071             dev_state != QLA8XXX_DEV_INITIALIZING) {
3072                 if (time_after_eq(jiffies, reset_timeout)) {
3073                         ql_log(ql_log_warn, vha, 0x00b5,
3074                             "Reset timeout.\n");
3075                         break;
3076                 }
3077                 qla82xx_idc_unlock(ha);
3078                 msleep(1000);
3079                 qla82xx_idc_lock(ha);
3080                 drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
3081                 drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3082                 if (ha->flags.nic_core_reset_owner)
3083                         drv_active &= active_mask;
3084                 dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3085         }
3086
3087         ql_dbg(ql_dbg_p3p, vha, 0xb02b,
3088             "drv_state: 0x%08x, drv_active: 0x%08x, "
3089             "dev_state: 0x%08x, active_mask: 0x%08x\n",
3090             drv_state, drv_active, dev_state, active_mask);
3091
3092         ql_log(ql_log_info, vha, 0x00b6,
3093             "Device state is 0x%x = %s.\n",
3094             dev_state,
3095             dev_state < MAX_STATES ? qdev_state(dev_state) : "Unknown");
3096
3097         /* Force to DEV_COLD unless someone else is starting a reset */
3098         if (dev_state != QLA8XXX_DEV_INITIALIZING &&
3099             dev_state != QLA8XXX_DEV_COLD) {
3100                 ql_log(ql_log_info, vha, 0x00b7,
3101                     "HW State: COLD/RE-INIT.\n");
3102                 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_COLD);
3103                 qla82xx_set_rst_ready(ha);
3104                 if (ql2xmdenable) {
3105                         if (qla82xx_md_collect(vha))
3106                                 ql_log(ql_log_warn, vha, 0xb02c,
3107                                     "Minidump not collected.\n");
3108                 } else
3109                         ql_log(ql_log_warn, vha, 0xb04f,
3110                             "Minidump disabled.\n");
3111         }
3112 }
3113
3114 int
3115 qla82xx_check_md_needed(scsi_qla_host_t *vha)
3116 {
3117         struct qla_hw_data *ha = vha->hw;
3118         uint16_t fw_major_version, fw_minor_version, fw_subminor_version;
3119         int rval = QLA_SUCCESS;
3120
3121         fw_major_version = ha->fw_major_version;
3122         fw_minor_version = ha->fw_minor_version;
3123         fw_subminor_version = ha->fw_subminor_version;
3124
3125         rval = qla2x00_get_fw_version(vha);
3126         if (rval != QLA_SUCCESS)
3127                 return rval;
3128
3129         if (ql2xmdenable) {
3130                 if (!ha->fw_dumped) {
3131                         if (fw_major_version != ha->fw_major_version ||
3132                             fw_minor_version != ha->fw_minor_version ||
3133                             fw_subminor_version != ha->fw_subminor_version) {
3134                                 ql_dbg(ql_dbg_p3p, vha, 0xb02d,
3135                                     "Firmware version differs "
3136                                     "Previous version: %d:%d:%d - "
3137                                     "New version: %d:%d:%d\n",
3138                                     fw_major_version, fw_minor_version,
3139                                     fw_subminor_version,
3140                                     ha->fw_major_version,
3141                                     ha->fw_minor_version,
3142                                     ha->fw_subminor_version);
3143                                 /* Release MiniDump resources */
3144                                 qla82xx_md_free(vha);
3145                                 /* ALlocate MiniDump resources */
3146                                 qla82xx_md_prep(vha);
3147                         }
3148                 } else
3149                         ql_log(ql_log_info, vha, 0xb02e,
3150                             "Firmware dump available to retrieve\n");
3151         }
3152         return rval;
3153 }
3154
3155
3156 static int
3157 qla82xx_check_fw_alive(scsi_qla_host_t *vha)
3158 {
3159         uint32_t fw_heartbeat_counter;
3160         int status = 0;
3161
3162         fw_heartbeat_counter = qla82xx_rd_32(vha->hw,
3163                 QLA82XX_PEG_ALIVE_COUNTER);
3164         /* all 0xff, assume AER/EEH in progress, ignore */
3165         if (fw_heartbeat_counter == 0xffffffff) {
3166                 ql_dbg(ql_dbg_timer, vha, 0x6003,
3167                     "FW heartbeat counter is 0xffffffff, "
3168                     "returning status=%d.\n", status);
3169                 return status;
3170         }
3171         if (vha->fw_heartbeat_counter == fw_heartbeat_counter) {
3172                 vha->seconds_since_last_heartbeat++;
3173                 /* FW not alive after 2 seconds */
3174                 if (vha->seconds_since_last_heartbeat == 2) {
3175                         vha->seconds_since_last_heartbeat = 0;
3176                         status = 1;
3177                 }
3178         } else
3179                 vha->seconds_since_last_heartbeat = 0;
3180         vha->fw_heartbeat_counter = fw_heartbeat_counter;
3181         if (status)
3182                 ql_dbg(ql_dbg_timer, vha, 0x6004,
3183                     "Returning status=%d.\n", status);
3184         return status;
3185 }
3186
3187 /*
3188  * qla82xx_device_state_handler
3189  *      Main state handler
3190  *
3191  * Note:
3192  *      IDC lock must be held upon entry
3193  *
3194  * Return:
3195  *    Success : 0
3196  *    Failed  : 1
3197  */
3198 int
3199 qla82xx_device_state_handler(scsi_qla_host_t *vha)
3200 {
3201         uint32_t dev_state;
3202         uint32_t old_dev_state;
3203         int rval = QLA_SUCCESS;
3204         unsigned long dev_init_timeout;
3205         struct qla_hw_data *ha = vha->hw;
3206         int loopcount = 0;
3207
3208         qla82xx_idc_lock(ha);
3209         if (!vha->flags.init_done) {
3210                 qla82xx_set_drv_active(vha);
3211                 qla82xx_set_idc_version(vha);
3212         }
3213
3214         dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3215         old_dev_state = dev_state;
3216         ql_log(ql_log_info, vha, 0x009b,
3217             "Device state is 0x%x = %s.\n",
3218             dev_state,
3219             dev_state < MAX_STATES ? qdev_state(dev_state) : "Unknown");
3220
3221         /* wait for 30 seconds for device to go ready */
3222         dev_init_timeout = jiffies + (ha->fcoe_dev_init_timeout * HZ);
3223
3224         while (1) {
3225
3226                 if (time_after_eq(jiffies, dev_init_timeout)) {
3227                         ql_log(ql_log_fatal, vha, 0x009c,
3228                             "Device init failed.\n");
3229                         rval = QLA_FUNCTION_FAILED;
3230                         break;
3231                 }
3232                 dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3233                 if (old_dev_state != dev_state) {
3234                         loopcount = 0;
3235                         old_dev_state = dev_state;
3236                 }
3237                 if (loopcount < 5) {
3238                         ql_log(ql_log_info, vha, 0x009d,
3239                             "Device state is 0x%x = %s.\n",
3240                             dev_state,
3241                             dev_state < MAX_STATES ? qdev_state(dev_state) :
3242                             "Unknown");
3243                 }
3244
3245                 switch (dev_state) {
3246                 case QLA8XXX_DEV_READY:
3247                         ha->flags.nic_core_reset_owner = 0;
3248                         goto rel_lock;
3249                 case QLA8XXX_DEV_COLD:
3250                         rval = qla82xx_device_bootstrap(vha);
3251                         break;
3252                 case QLA8XXX_DEV_INITIALIZING:
3253                         qla82xx_idc_unlock(ha);
3254                         msleep(1000);
3255                         qla82xx_idc_lock(ha);
3256                         break;
3257                 case QLA8XXX_DEV_NEED_RESET:
3258                         if (!ql2xdontresethba)
3259                                 qla82xx_need_reset_handler(vha);
3260                         else {
3261                                 qla82xx_idc_unlock(ha);
3262                                 msleep(1000);
3263                                 qla82xx_idc_lock(ha);
3264                         }
3265                         dev_init_timeout = jiffies +
3266                             (ha->fcoe_dev_init_timeout * HZ);
3267                         break;
3268                 case QLA8XXX_DEV_NEED_QUIESCENT:
3269                         qla82xx_need_qsnt_handler(vha);
3270                         /* Reset timeout value after quiescence handler */
3271                         dev_init_timeout = jiffies + (ha->fcoe_dev_init_timeout\
3272                                                          * HZ);
3273                         break;
3274                 case QLA8XXX_DEV_QUIESCENT:
3275                         /* Owner will exit and other will wait for the state
3276                          * to get changed
3277                          */
3278                         if (ha->flags.quiesce_owner)
3279                                 goto rel_lock;
3280
3281                         qla82xx_idc_unlock(ha);
3282                         msleep(1000);
3283                         qla82xx_idc_lock(ha);
3284
3285                         /* Reset timeout value after quiescence handler */
3286                         dev_init_timeout = jiffies + (ha->fcoe_dev_init_timeout\
3287                                                          * HZ);
3288                         break;
3289                 case QLA8XXX_DEV_FAILED:
3290                         qla8xxx_dev_failed_handler(vha);
3291                         rval = QLA_FUNCTION_FAILED;
3292                         goto exit;
3293                 default:
3294                         qla82xx_idc_unlock(ha);
3295                         msleep(1000);
3296                         qla82xx_idc_lock(ha);
3297                 }
3298                 loopcount++;
3299         }
3300 rel_lock:
3301         qla82xx_idc_unlock(ha);
3302 exit:
3303         return rval;
3304 }
3305
3306 static int qla82xx_check_temp(scsi_qla_host_t *vha)
3307 {
3308         uint32_t temp, temp_state, temp_val;
3309         struct qla_hw_data *ha = vha->hw;
3310
3311         temp = qla82xx_rd_32(ha, CRB_TEMP_STATE);
3312         temp_state = qla82xx_get_temp_state(temp);
3313         temp_val = qla82xx_get_temp_val(temp);
3314
3315         if (temp_state == QLA82XX_TEMP_PANIC) {
3316                 ql_log(ql_log_warn, vha, 0x600e,
3317                     "Device temperature %d degrees C exceeds "
3318                     " maximum allowed. Hardware has been shut down.\n",
3319                     temp_val);
3320                 return 1;
3321         } else if (temp_state == QLA82XX_TEMP_WARN) {
3322                 ql_log(ql_log_warn, vha, 0x600f,
3323                     "Device temperature %d degrees C exceeds "
3324                     "operating range. Immediate action needed.\n",
3325                     temp_val);
3326         }
3327         return 0;
3328 }
3329
3330 int qla82xx_read_temperature(scsi_qla_host_t *vha)
3331 {
3332         uint32_t temp;
3333
3334         temp = qla82xx_rd_32(vha->hw, CRB_TEMP_STATE);
3335         return qla82xx_get_temp_val(temp);
3336 }
3337
3338 void qla82xx_clear_pending_mbx(scsi_qla_host_t *vha)
3339 {
3340         struct qla_hw_data *ha = vha->hw;
3341
3342         if (ha->flags.mbox_busy) {
3343                 ha->flags.mbox_int = 1;
3344                 ha->flags.mbox_busy = 0;
3345                 ql_log(ql_log_warn, vha, 0x6010,
3346                     "Doing premature completion of mbx command.\n");
3347                 if (test_and_clear_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags))
3348                         complete(&ha->mbx_intr_comp);
3349         }
3350 }
3351
3352 void qla82xx_watchdog(scsi_qla_host_t *vha)
3353 {
3354         uint32_t dev_state, halt_status;
3355         struct qla_hw_data *ha = vha->hw;
3356
3357         /* don't poll if reset is going on */
3358         if (!ha->flags.nic_core_reset_hdlr_active) {
3359                 dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3360                 if (qla82xx_check_temp(vha)) {
3361                         set_bit(ISP_UNRECOVERABLE, &vha->dpc_flags);
3362                         ha->flags.isp82xx_fw_hung = 1;
3363                         qla82xx_clear_pending_mbx(vha);
3364                 } else if (dev_state == QLA8XXX_DEV_NEED_RESET &&
3365                     !test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags)) {
3366                         ql_log(ql_log_warn, vha, 0x6001,
3367                             "Adapter reset needed.\n");
3368                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3369                 } else if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT &&
3370                         !test_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags)) {
3371                         ql_log(ql_log_warn, vha, 0x6002,
3372                             "Quiescent needed.\n");
3373                         set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
3374                 } else if (dev_state == QLA8XXX_DEV_FAILED &&
3375                         !test_bit(ISP_UNRECOVERABLE, &vha->dpc_flags) &&
3376                         vha->flags.online == 1) {
3377                         ql_log(ql_log_warn, vha, 0xb055,
3378                             "Adapter state is failed. Offlining.\n");
3379                         set_bit(ISP_UNRECOVERABLE, &vha->dpc_flags);
3380                         ha->flags.isp82xx_fw_hung = 1;
3381                         qla82xx_clear_pending_mbx(vha);
3382                 } else {
3383                         if (qla82xx_check_fw_alive(vha)) {
3384                                 ql_dbg(ql_dbg_timer, vha, 0x6011,
3385                                     "disabling pause transmit on port 0 & 1.\n");
3386                                 qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
3387                                     CRB_NIU_XG_PAUSE_CTL_P0|CRB_NIU_XG_PAUSE_CTL_P1);
3388                                 halt_status = qla82xx_rd_32(ha,
3389                                     QLA82XX_PEG_HALT_STATUS1);
3390                                 ql_log(ql_log_info, vha, 0x6005,
3391                                     "dumping hw/fw registers:.\n "
3392                                     " PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,.\n "
3393                                     " PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,.\n "
3394                                     " PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,.\n "
3395                                     " PEG_NET_4_PC: 0x%x.\n", halt_status,
3396                                     qla82xx_rd_32(ha, QLA82XX_PEG_HALT_STATUS2),
3397                                     qla82xx_rd_32(ha,
3398                                             QLA82XX_CRB_PEG_NET_0 + 0x3c),
3399                                     qla82xx_rd_32(ha,
3400                                             QLA82XX_CRB_PEG_NET_1 + 0x3c),
3401                                     qla82xx_rd_32(ha,
3402                                             QLA82XX_CRB_PEG_NET_2 + 0x3c),
3403                                     qla82xx_rd_32(ha,
3404                                             QLA82XX_CRB_PEG_NET_3 + 0x3c),
3405                                     qla82xx_rd_32(ha,
3406                                             QLA82XX_CRB_PEG_NET_4 + 0x3c));
3407                                 if (((halt_status & 0x1fffff00) >> 8) == 0x67)
3408                                         ql_log(ql_log_warn, vha, 0xb052,
3409                                             "Firmware aborted with "
3410                                             "error code 0x00006700. Device is "
3411                                             "being reset.\n");
3412                                 if (halt_status & HALT_STATUS_UNRECOVERABLE) {
3413                                         set_bit(ISP_UNRECOVERABLE,
3414                                             &vha->dpc_flags);
3415                                 } else {
3416                                         ql_log(ql_log_info, vha, 0x6006,
3417                                             "Detect abort  needed.\n");
3418                                         set_bit(ISP_ABORT_NEEDED,
3419                                             &vha->dpc_flags);
3420                                 }
3421                                 ha->flags.isp82xx_fw_hung = 1;
3422                                 ql_log(ql_log_warn, vha, 0x6007, "Firmware hung.\n");
3423                                 qla82xx_clear_pending_mbx(vha);
3424                         }
3425                 }
3426         }
3427 }
3428
3429 int qla82xx_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
3430 {
3431         int rval = -1;
3432         struct qla_hw_data *ha = vha->hw;
3433
3434         if (IS_QLA82XX(ha))
3435                 rval = qla82xx_device_state_handler(vha);
3436         else if (IS_QLA8044(ha)) {
3437                 qla8044_idc_lock(ha);
3438                 /* Decide the reset ownership */
3439                 qla83xx_reset_ownership(vha);
3440                 qla8044_idc_unlock(ha);
3441                 rval = qla8044_device_state_handler(vha);
3442         }
3443         return rval;
3444 }
3445
3446 void
3447 qla82xx_set_reset_owner(scsi_qla_host_t *vha)
3448 {
3449         struct qla_hw_data *ha = vha->hw;
3450         uint32_t dev_state = 0;
3451
3452         if (IS_QLA82XX(ha))
3453                 dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3454         else if (IS_QLA8044(ha))
3455                 dev_state = qla8044_rd_direct(vha, QLA8044_CRB_DEV_STATE_INDEX);
3456
3457         if (dev_state == QLA8XXX_DEV_READY) {
3458                 ql_log(ql_log_info, vha, 0xb02f,
3459                     "HW State: NEED RESET\n");
3460                 if (IS_QLA82XX(ha)) {
3461                         qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3462                             QLA8XXX_DEV_NEED_RESET);
3463                         ha->flags.nic_core_reset_owner = 1;
3464                         ql_dbg(ql_dbg_p3p, vha, 0xb030,
3465                             "reset_owner is 0x%x\n", ha->portnum);
3466                 } else if (IS_QLA8044(ha))
3467                         qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX,
3468                             QLA8XXX_DEV_NEED_RESET);
3469         } else
3470                 ql_log(ql_log_info, vha, 0xb031,
3471                     "Device state is 0x%x = %s.\n",
3472                     dev_state,
3473                     dev_state < MAX_STATES ? qdev_state(dev_state) : "Unknown");
3474 }
3475
3476 /*
3477  *  qla82xx_abort_isp
3478  *      Resets ISP and aborts all outstanding commands.
3479  *
3480  * Input:
3481  *      ha           = adapter block pointer.
3482  *
3483  * Returns:
3484  *      0 = success
3485  */
3486 int
3487 qla82xx_abort_isp(scsi_qla_host_t *vha)
3488 {
3489         int rval = -1;
3490         struct qla_hw_data *ha = vha->hw;
3491
3492         if (vha->device_flags & DFLG_DEV_FAILED) {
3493                 ql_log(ql_log_warn, vha, 0x8024,
3494                     "Device in failed state, exiting.\n");
3495                 return QLA_SUCCESS;
3496         }
3497         ha->flags.nic_core_reset_hdlr_active = 1;
3498
3499         qla82xx_idc_lock(ha);
3500         qla82xx_set_reset_owner(vha);
3501         qla82xx_idc_unlock(ha);
3502
3503         if (IS_QLA82XX(ha))
3504                 rval = qla82xx_device_state_handler(vha);
3505         else if (IS_QLA8044(ha)) {
3506                 qla8044_idc_lock(ha);
3507                 /* Decide the reset ownership */
3508                 qla83xx_reset_ownership(vha);
3509                 qla8044_idc_unlock(ha);
3510                 rval = qla8044_device_state_handler(vha);
3511         }
3512
3513         qla82xx_idc_lock(ha);
3514         qla82xx_clear_rst_ready(ha);
3515         qla82xx_idc_unlock(ha);
3516
3517         if (rval == QLA_SUCCESS) {
3518                 ha->flags.isp82xx_fw_hung = 0;
3519                 ha->flags.nic_core_reset_hdlr_active = 0;
3520                 qla82xx_restart_isp(vha);
3521         }
3522
3523         if (rval) {
3524                 vha->flags.online = 1;
3525                 if (test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
3526                         if (ha->isp_abort_cnt == 0) {
3527                                 ql_log(ql_log_warn, vha, 0x8027,
3528                                     "ISP error recover failed - board "
3529                                     "disabled.\n");
3530                                 /*
3531                                  * The next call disables the board
3532                                  * completely.
3533                                  */
3534                                 ha->isp_ops->reset_adapter(vha);
3535                                 vha->flags.online = 0;
3536                                 clear_bit(ISP_ABORT_RETRY,
3537                                     &vha->dpc_flags);
3538                                 rval = QLA_SUCCESS;
3539                         } else { /* schedule another ISP abort */
3540                                 ha->isp_abort_cnt--;
3541                                 ql_log(ql_log_warn, vha, 0x8036,
3542                                     "ISP abort - retry remaining %d.\n",
3543                                     ha->isp_abort_cnt);
3544                                 rval = QLA_FUNCTION_FAILED;
3545                         }
3546                 } else {
3547                         ha->isp_abort_cnt = MAX_RETRIES_OF_ISP_ABORT;
3548                         ql_dbg(ql_dbg_taskm, vha, 0x8029,
3549                             "ISP error recovery - retrying (%d) more times.\n",
3550                             ha->isp_abort_cnt);
3551                         set_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
3552                         rval = QLA_FUNCTION_FAILED;
3553                 }
3554         }
3555         return rval;
3556 }
3557
3558 /*
3559  *  qla82xx_fcoe_ctx_reset
3560  *      Perform a quick reset and aborts all outstanding commands.
3561  *      This will only perform an FCoE context reset and avoids a full blown
3562  *      chip reset.
3563  *
3564  * Input:
3565  *      ha = adapter block pointer.
3566  *      is_reset_path = flag for identifying the reset path.
3567  *
3568  * Returns:
3569  *      0 = success
3570  */
3571 int qla82xx_fcoe_ctx_reset(scsi_qla_host_t *vha)
3572 {
3573         int rval = QLA_FUNCTION_FAILED;
3574
3575         if (vha->flags.online) {
3576                 /* Abort all outstanding commands, so as to be requeued later */
3577                 qla2x00_abort_isp_cleanup(vha);
3578         }
3579
3580         /* Stop currently executing firmware.
3581          * This will destroy existing FCoE context at the F/W end.
3582          */
3583         qla2x00_try_to_stop_firmware(vha);
3584
3585         /* Restart. Creates a new FCoE context on INIT_FIRMWARE. */
3586         rval = qla82xx_restart_isp(vha);
3587
3588         return rval;
3589 }
3590
3591 /*
3592  * qla2x00_wait_for_fcoe_ctx_reset
3593  *    Wait till the FCoE context is reset.
3594  *
3595  * Note:
3596  *    Does context switching here.
3597  *    Release SPIN_LOCK (if any) before calling this routine.
3598  *
3599  * Return:
3600  *    Success (fcoe_ctx reset is done) : 0
3601  *    Failed  (fcoe_ctx reset not completed within max loop timout ) : 1
3602  */
3603 int qla2x00_wait_for_fcoe_ctx_reset(scsi_qla_host_t *vha)
3604 {
3605         int status = QLA_FUNCTION_FAILED;
3606         unsigned long wait_reset;
3607
3608         wait_reset = jiffies + (MAX_LOOP_TIMEOUT * HZ);
3609         while ((test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) ||
3610             test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
3611             && time_before(jiffies, wait_reset)) {
3612
3613                 set_current_state(TASK_UNINTERRUPTIBLE);
3614                 schedule_timeout(HZ);
3615
3616                 if (!test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) &&
3617                     !test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) {
3618                         status = QLA_SUCCESS;
3619                         break;
3620                 }
3621         }
3622         ql_dbg(ql_dbg_p3p, vha, 0xb027,
3623                "%s: status=%d.\n", __func__, status);
3624
3625         return status;
3626 }
3627
3628 void
3629 qla82xx_chip_reset_cleanup(scsi_qla_host_t *vha)
3630 {
3631         int i, fw_state = 0;
3632         unsigned long flags;
3633         struct qla_hw_data *ha = vha->hw;
3634
3635         /* Check if 82XX firmware is alive or not
3636          * We may have arrived here from NEED_RESET
3637          * detection only
3638          */
3639         if (!ha->flags.isp82xx_fw_hung) {
3640                 for (i = 0; i < 2; i++) {
3641                         msleep(1000);
3642                         if (IS_QLA82XX(ha))
3643                                 fw_state = qla82xx_check_fw_alive(vha);
3644                         else if (IS_QLA8044(ha))
3645                                 fw_state = qla8044_check_fw_alive(vha);
3646                         if (fw_state) {
3647                                 ha->flags.isp82xx_fw_hung = 1;
3648                                 qla82xx_clear_pending_mbx(vha);
3649                                 break;
3650                         }
3651                 }
3652         }
3653         ql_dbg(ql_dbg_init, vha, 0x00b0,
3654             "Entered %s fw_hung=%d.\n",
3655             __func__, ha->flags.isp82xx_fw_hung);
3656
3657         /* Abort all commands gracefully if fw NOT hung */
3658         if (!ha->flags.isp82xx_fw_hung) {
3659                 int cnt, que;
3660                 srb_t *sp;
3661                 struct req_que *req;
3662
3663                 spin_lock_irqsave(&ha->hardware_lock, flags);
3664                 for (que = 0; que < ha->max_req_queues; que++) {
3665                         req = ha->req_q_map[que];
3666                         if (!req)
3667                                 continue;
3668                         for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++) {
3669                                 sp = req->outstanding_cmds[cnt];
3670                                 if (sp) {
3671                                         if (!sp->u.scmd.ctx ||
3672                                             (sp->flags & SRB_FCP_CMND_DMA_VALID)) {
3673                                                 spin_unlock_irqrestore(
3674                                                     &ha->hardware_lock, flags);
3675                                                 if (ha->isp_ops->abort_command(sp)) {
3676                                                         ql_log(ql_log_info, vha,
3677                                                             0x00b1,
3678                                                             "mbx abort failed.\n");
3679                                                 } else {
3680                                                         ql_log(ql_log_info, vha,
3681                                                             0x00b2,
3682                                                             "mbx abort success.\n");
3683                                                 }
3684                                                 spin_lock_irqsave(&ha->hardware_lock, flags);
3685                                         }
3686                                 }
3687                         }
3688                 }
3689                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3690
3691                 /* Wait for pending cmds (physical and virtual) to complete */
3692                 if (!qla2x00_eh_wait_for_pending_commands(vha, 0, 0,
3693                     WAIT_HOST) == QLA_SUCCESS) {
3694                         ql_dbg(ql_dbg_init, vha, 0x00b3,
3695                             "Done wait for "
3696                             "pending commands.\n");
3697                 }
3698         }
3699 }
3700
3701 /* Minidump related functions */
3702 static int
3703 qla82xx_minidump_process_control(scsi_qla_host_t *vha,
3704         qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3705 {
3706         struct qla_hw_data *ha = vha->hw;
3707         struct qla82xx_md_entry_crb *crb_entry;
3708         uint32_t read_value, opcode, poll_time;
3709         uint32_t addr, index, crb_addr;
3710         unsigned long wtime;
3711         struct qla82xx_md_template_hdr *tmplt_hdr;
3712         uint32_t rval = QLA_SUCCESS;
3713         int i;
3714
3715         tmplt_hdr = (struct qla82xx_md_template_hdr *)ha->md_tmplt_hdr;
3716         crb_entry = (struct qla82xx_md_entry_crb *)entry_hdr;
3717         crb_addr = crb_entry->addr;
3718
3719         for (i = 0; i < crb_entry->op_count; i++) {
3720                 opcode = crb_entry->crb_ctrl.opcode;
3721                 if (opcode & QLA82XX_DBG_OPCODE_WR) {
3722                         qla82xx_md_rw_32(ha, crb_addr,
3723                             crb_entry->value_1, 1);
3724                         opcode &= ~QLA82XX_DBG_OPCODE_WR;
3725                 }
3726
3727                 if (opcode & QLA82XX_DBG_OPCODE_RW) {
3728                         read_value = qla82xx_md_rw_32(ha, crb_addr, 0, 0);
3729                         qla82xx_md_rw_32(ha, crb_addr, read_value, 1);
3730                         opcode &= ~QLA82XX_DBG_OPCODE_RW;
3731                 }
3732
3733                 if (opcode & QLA82XX_DBG_OPCODE_AND) {
3734                         read_value = qla82xx_md_rw_32(ha, crb_addr, 0, 0);
3735                         read_value &= crb_entry->value_2;
3736                         opcode &= ~QLA82XX_DBG_OPCODE_AND;
3737                         if (opcode & QLA82XX_DBG_OPCODE_OR) {
3738                                 read_value |= crb_entry->value_3;
3739                                 opcode &= ~QLA82XX_DBG_OPCODE_OR;
3740                         }
3741                         qla82xx_md_rw_32(ha, crb_addr, read_value, 1);
3742                 }
3743
3744                 if (opcode & QLA82XX_DBG_OPCODE_OR) {
3745                         read_value = qla82xx_md_rw_32(ha, crb_addr, 0, 0);
3746                         read_value |= crb_entry->value_3;
3747                         qla82xx_md_rw_32(ha, crb_addr, read_value, 1);
3748                         opcode &= ~QLA82XX_DBG_OPCODE_OR;
3749                 }
3750
3751                 if (opcode & QLA82XX_DBG_OPCODE_POLL) {
3752                         poll_time = crb_entry->crb_strd.poll_timeout;
3753                         wtime = jiffies + poll_time;
3754                         read_value = qla82xx_md_rw_32(ha, crb_addr, 0, 0);
3755
3756                         do {
3757                                 if ((read_value & crb_entry->value_2)
3758                                     == crb_entry->value_1)
3759                                         break;
3760                                 else if (time_after_eq(jiffies, wtime)) {
3761                                         /* capturing dump failed */
3762                                         rval = QLA_FUNCTION_FAILED;
3763                                         break;
3764                                 } else
3765                                         read_value = qla82xx_md_rw_32(ha,
3766                                             crb_addr, 0, 0);
3767                         } while (1);
3768                         opcode &= ~QLA82XX_DBG_OPCODE_POLL;
3769                 }
3770
3771                 if (opcode & QLA82XX_DBG_OPCODE_RDSTATE) {
3772                         if (crb_entry->crb_strd.state_index_a) {
3773                                 index = crb_entry->crb_strd.state_index_a;
3774                                 addr = tmplt_hdr->saved_state_array[index];
3775                         } else
3776                                 addr = crb_addr;
3777
3778                         read_value = qla82xx_md_rw_32(ha, addr, 0, 0);
3779                         index = crb_entry->crb_ctrl.state_index_v;
3780                         tmplt_hdr->saved_state_array[index] = read_value;
3781                         opcode &= ~QLA82XX_DBG_OPCODE_RDSTATE;
3782                 }
3783
3784                 if (opcode & QLA82XX_DBG_OPCODE_WRSTATE) {
3785                         if (crb_entry->crb_strd.state_index_a) {
3786                                 index = crb_entry->crb_strd.state_index_a;
3787                                 addr = tmplt_hdr->saved_state_array[index];
3788                         } else
3789                                 addr = crb_addr;
3790
3791                         if (crb_entry->crb_ctrl.state_index_v) {
3792                                 index = crb_entry->crb_ctrl.state_index_v;
3793                                 read_value =
3794                                     tmplt_hdr->saved_state_array[index];
3795                         } else
3796                                 read_value = crb_entry->value_1;
3797
3798                         qla82xx_md_rw_32(ha, addr, read_value, 1);
3799                         opcode &= ~QLA82XX_DBG_OPCODE_WRSTATE;
3800                 }
3801
3802                 if (opcode & QLA82XX_DBG_OPCODE_MDSTATE) {
3803                         index = crb_entry->crb_ctrl.state_index_v;
3804                         read_value = tmplt_hdr->saved_state_array[index];
3805                         read_value <<= crb_entry->crb_ctrl.shl;
3806                         read_value >>= crb_entry->crb_ctrl.shr;
3807                         if (crb_entry->value_2)
3808                                 read_value &= crb_entry->value_2;
3809                         read_value |= crb_entry->value_3;
3810                         read_value += crb_entry->value_1;
3811                         tmplt_hdr->saved_state_array[index] = read_value;
3812                         opcode &= ~QLA82XX_DBG_OPCODE_MDSTATE;
3813                 }
3814                 crb_addr += crb_entry->crb_strd.addr_stride;
3815         }
3816         return rval;
3817 }
3818
3819 static void
3820 qla82xx_minidump_process_rdocm(scsi_qla_host_t *vha,
3821         qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3822 {
3823         struct qla_hw_data *ha = vha->hw;
3824         uint32_t r_addr, r_stride, loop_cnt, i, r_value;
3825         struct qla82xx_md_entry_rdocm *ocm_hdr;
3826         uint32_t *data_ptr = *d_ptr;
3827
3828         ocm_hdr = (struct qla82xx_md_entry_rdocm *)entry_hdr;
3829         r_addr = ocm_hdr->read_addr;
3830         r_stride = ocm_hdr->read_addr_stride;
3831         loop_cnt = ocm_hdr->op_count;
3832
3833         for (i = 0; i < loop_cnt; i++) {
3834                 r_value = RD_REG_DWORD((void __iomem *)
3835                     (r_addr + ha->nx_pcibase));
3836                 *data_ptr++ = cpu_to_le32(r_value);
3837                 r_addr += r_stride;
3838         }
3839         *d_ptr = data_ptr;
3840 }
3841
3842 static void
3843 qla82xx_minidump_process_rdmux(scsi_qla_host_t *vha,
3844         qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3845 {
3846         struct qla_hw_data *ha = vha->hw;
3847         uint32_t r_addr, s_stride, s_addr, s_value, loop_cnt, i, r_value;
3848         struct qla82xx_md_entry_mux *mux_hdr;
3849         uint32_t *data_ptr = *d_ptr;
3850
3851         mux_hdr = (struct qla82xx_md_entry_mux *)entry_hdr;
3852         r_addr = mux_hdr->read_addr;
3853         s_addr = mux_hdr->select_addr;
3854         s_stride = mux_hdr->select_value_stride;
3855         s_value = mux_hdr->select_value;
3856         loop_cnt = mux_hdr->op_count;
3857
3858         for (i = 0; i < loop_cnt; i++) {
3859                 qla82xx_md_rw_32(ha, s_addr, s_value, 1);
3860                 r_value = qla82xx_md_rw_32(ha, r_addr, 0, 0);
3861                 *data_ptr++ = cpu_to_le32(s_value);
3862                 *data_ptr++ = cpu_to_le32(r_value);
3863                 s_value += s_stride;
3864         }
3865         *d_ptr = data_ptr;
3866 }
3867
3868 static void
3869 qla82xx_minidump_process_rdcrb(scsi_qla_host_t *vha,
3870         qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3871 {
3872         struct qla_hw_data *ha = vha->hw;
3873         uint32_t r_addr, r_stride, loop_cnt, i, r_value;
3874         struct qla82xx_md_entry_crb *crb_hdr;
3875         uint32_t *data_ptr = *d_ptr;
3876
3877         crb_hdr = (struct qla82xx_md_entry_crb *)entry_hdr;
3878         r_addr = crb_hdr->addr;
3879         r_stride = crb_hdr->crb_strd.addr_stride;
3880         loop_cnt = crb_hdr->op_count;
3881
3882         for (i = 0; i < loop_cnt; i++) {
3883                 r_value = qla82xx_md_rw_32(ha, r_addr, 0, 0);
3884                 *data_ptr++ = cpu_to_le32(r_addr);
3885                 *data_ptr++ = cpu_to_le32(r_value);
3886                 r_addr += r_stride;
3887         }
3888         *d_ptr = data_ptr;
3889 }
3890
3891 static int
3892 qla82xx_minidump_process_l2tag(scsi_qla_host_t *vha,
3893         qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3894 {
3895         struct qla_hw_data *ha = vha->hw;
3896         uint32_t addr, r_addr, c_addr, t_r_addr;
3897         uint32_t i, k, loop_count, t_value, r_cnt, r_value;
3898         unsigned long p_wait, w_time, p_mask;
3899         uint32_t c_value_w, c_value_r;
3900         struct qla82xx_md_entry_cache *cache_hdr;
3901         int rval = QLA_FUNCTION_FAILED;
3902         uint32_t *data_ptr = *d_ptr;
3903
3904         cache_hdr = (struct qla82xx_md_entry_cache *)entry_hdr;
3905         loop_count = cache_hdr->op_count;
3906         r_addr = cache_hdr->read_addr;
3907         c_addr = cache_hdr->control_addr;
3908         c_value_w = cache_hdr->cache_ctrl.write_value;
3909
3910         t_r_addr = cache_hdr->tag_reg_addr;
3911         t_value = cache_hdr->addr_ctrl.init_tag_value;
3912         r_cnt = cache_hdr->read_ctrl.read_addr_cnt;
3913         p_wait = cache_hdr->cache_ctrl.poll_wait;
3914         p_mask = cache_hdr->cache_ctrl.poll_mask;
3915
3916         for (i = 0; i < loop_count; i++) {
3917                 qla82xx_md_rw_32(ha, t_r_addr, t_value, 1);
3918                 if (c_value_w)
3919                         qla82xx_md_rw_32(ha, c_addr, c_value_w, 1);
3920
3921                 if (p_mask) {
3922                         w_time = jiffies + p_wait;
3923                         do {
3924                                 c_value_r = qla82xx_md_rw_32(ha, c_addr, 0, 0);
3925                                 if ((c_value_r & p_mask) == 0)
3926                                         break;
3927                                 else if (time_after_eq(jiffies, w_time)) {
3928                                         /* capturing dump failed */
3929                                         ql_dbg(ql_dbg_p3p, vha, 0xb032,
3930                                             "c_value_r: 0x%x, poll_mask: 0x%lx, "
3931                                             "w_time: 0x%lx\n",
3932                                             c_value_r, p_mask, w_time);
3933                                         return rval;
3934                                 }
3935                         } while (1);
3936                 }
3937
3938                 addr = r_addr;
3939                 for (k = 0; k < r_cnt; k++) {
3940                         r_value = qla82xx_md_rw_32(ha, addr, 0, 0);
3941                         *data_ptr++ = cpu_to_le32(r_value);
3942                         addr += cache_hdr->read_ctrl.read_addr_stride;
3943                 }
3944                 t_value += cache_hdr->addr_ctrl.tag_value_stride;
3945         }
3946         *d_ptr = data_ptr;
3947         return QLA_SUCCESS;
3948 }
3949
3950 static void
3951 qla82xx_minidump_process_l1cache(scsi_qla_host_t *vha,
3952         qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3953 {
3954         struct qla_hw_data *ha = vha->hw;
3955         uint32_t addr, r_addr, c_addr, t_r_addr;
3956         uint32_t i, k, loop_count, t_value, r_cnt, r_value;
3957         uint32_t c_value_w;
3958         struct qla82xx_md_entry_cache *cache_hdr;
3959         uint32_t *data_ptr = *d_ptr;
3960
3961         cache_hdr = (struct qla82xx_md_entry_cache *)entry_hdr;
3962         loop_count = cache_hdr->op_count;
3963         r_addr = cache_hdr->read_addr;
3964         c_addr = cache_hdr->control_addr;
3965         c_value_w = cache_hdr->cache_ctrl.write_value;
3966
3967         t_r_addr = cache_hdr->tag_reg_addr;
3968         t_value = cache_hdr->addr_ctrl.init_tag_value;
3969         r_cnt = cache_hdr->read_ctrl.read_addr_cnt;
3970
3971         for (i = 0; i < loop_count; i++) {
3972                 qla82xx_md_rw_32(ha, t_r_addr, t_value, 1);
3973                 qla82xx_md_rw_32(ha, c_addr, c_value_w, 1);
3974                 addr = r_addr;
3975                 for (k = 0; k < r_cnt; k++) {
3976                         r_value = qla82xx_md_rw_32(ha, addr, 0, 0);
3977                         *data_ptr++ = cpu_to_le32(r_value);
3978                         addr += cache_hdr->read_ctrl.read_addr_stride;
3979                 }
3980                 t_value += cache_hdr->addr_ctrl.tag_value_stride;
3981         }
3982         *d_ptr = data_ptr;
3983 }
3984
3985 static void
3986 qla82xx_minidump_process_queue(scsi_qla_host_t *vha,
3987         qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
3988 {
3989         struct qla_hw_data *ha = vha->hw;
3990         uint32_t s_addr, r_addr;
3991         uint32_t r_stride, r_value, r_cnt, qid = 0;
3992         uint32_t i, k, loop_cnt;
3993         struct qla82xx_md_entry_queue *q_hdr;
3994         uint32_t *data_ptr = *d_ptr;
3995
3996         q_hdr = (struct qla82xx_md_entry_queue *)entry_hdr;
3997         s_addr = q_hdr->select_addr;
3998         r_cnt = q_hdr->rd_strd.read_addr_cnt;
3999         r_stride = q_hdr->rd_strd.read_addr_stride;
4000         loop_cnt = q_hdr->op_count;
4001
4002         for (i = 0; i < loop_cnt; i++) {
4003                 qla82xx_md_rw_32(ha, s_addr, qid, 1);
4004                 r_addr = q_hdr->read_addr;
4005                 for (k = 0; k < r_cnt; k++) {
4006                         r_value = qla82xx_md_rw_32(ha, r_addr, 0, 0);
4007                         *data_ptr++ = cpu_to_le32(r_value);
4008                         r_addr += r_stride;
4009                 }
4010                 qid += q_hdr->q_strd.queue_id_stride;
4011         }
4012         *d_ptr = data_ptr;
4013 }
4014
4015 static void
4016 qla82xx_minidump_process_rdrom(scsi_qla_host_t *vha,
4017         qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
4018 {
4019         struct qla_hw_data *ha = vha->hw;
4020         uint32_t r_addr, r_value;
4021         uint32_t i, loop_cnt;
4022         struct qla82xx_md_entry_rdrom *rom_hdr;
4023         uint32_t *data_ptr = *d_ptr;
4024
4025         rom_hdr = (struct qla82xx_md_entry_rdrom *)entry_hdr;
4026         r_addr = rom_hdr->read_addr;
4027         loop_cnt = rom_hdr->read_data_size/sizeof(uint32_t);
4028
4029         for (i = 0; i < loop_cnt; i++) {
4030                 qla82xx_md_rw_32(ha, MD_DIRECT_ROM_WINDOW,
4031                     (r_addr & 0xFFFF0000), 1);
4032                 r_value = qla82xx_md_rw_32(ha,
4033                     MD_DIRECT_ROM_READ_BASE +
4034                     (r_addr & 0x0000FFFF), 0, 0);
4035                 *data_ptr++ = cpu_to_le32(r_value);
4036                 r_addr += sizeof(uint32_t);
4037         }
4038         *d_ptr = data_ptr;
4039 }
4040
4041 static int
4042 qla82xx_minidump_process_rdmem(scsi_qla_host_t *vha,
4043         qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)
4044 {
4045         struct qla_hw_data *ha = vha->hw;
4046         uint32_t r_addr, r_value, r_data;
4047         uint32_t i, j, loop_cnt;
4048         struct qla82xx_md_entry_rdmem *m_hdr;
4049         unsigned long flags;
4050         int rval = QLA_FUNCTION_FAILED;
4051         uint32_t *data_ptr = *d_ptr;
4052
4053         m_hdr = (struct qla82xx_md_entry_rdmem *)entry_hdr;
4054         r_addr = m_hdr->read_addr;
4055         loop_cnt = m_hdr->read_data_size/16;
4056
4057         if (r_addr & 0xf) {
4058                 ql_log(ql_log_warn, vha, 0xb033,
4059                     "Read addr 0x%x not 16 bytes aligned\n", r_addr);
4060                 return rval;
4061         }
4062
4063         if (m_hdr->read_data_size % 16) {
4064                 ql_log(ql_log_warn, vha, 0xb034,
4065                     "Read data[0x%x] not multiple of 16 bytes\n",
4066                     m_hdr->read_data_size);
4067                 return rval;
4068         }
4069
4070         ql_dbg(ql_dbg_p3p, vha, 0xb035,
4071             "[%s]: rdmem_addr: 0x%x, read_data_size: 0x%x, loop_cnt: 0x%x\n",
4072             __func__, r_addr, m_hdr->read_data_size, loop_cnt);
4073
4074         write_lock_irqsave(&ha->hw_lock, flags);
4075         for (i = 0; i < loop_cnt; i++) {
4076                 qla82xx_md_rw_32(ha, MD_MIU_TEST_AGT_ADDR_LO, r_addr, 1);
4077                 r_value = 0;
4078                 qla82xx_md_rw_32(ha, MD_MIU_TEST_AGT_ADDR_HI, r_value, 1);
4079                 r_value = MIU_TA_CTL_ENABLE;
4080                 qla82xx_md_rw_32(ha, MD_MIU_TEST_AGT_CTRL, r_value, 1);
4081                 r_value = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE;
4082                 qla82xx_md_rw_32(ha, MD_MIU_TEST_AGT_CTRL, r_value, 1);
4083
4084                 for (j = 0; j < MAX_CTL_CHECK; j++) {
4085                         r_value = qla82xx_md_rw_32(ha,
4086                             MD_MIU_TEST_AGT_CTRL, 0, 0);
4087                         if ((r_value & MIU_TA_CTL_BUSY) == 0)
4088                                 break;
4089                 }
4090
4091                 if (j >= MAX_CTL_CHECK) {
4092                         printk_ratelimited(KERN_ERR
4093                             "failed to read through agent\n");
4094                         write_unlock_irqrestore(&ha->hw_lock, flags);
4095                         return rval;
4096                 }
4097
4098                 for (j = 0; j < 4; j++) {
4099                         r_data = qla82xx_md_rw_32(ha,
4100                             MD_MIU_TEST_AGT_RDDATA[j], 0, 0);
4101                         *data_ptr++ = cpu_to_le32(r_data);
4102                 }
4103                 r_addr += 16;
4104         }
4105         write_unlock_irqrestore(&ha->hw_lock, flags);
4106         *d_ptr = data_ptr;
4107         return QLA_SUCCESS;
4108 }
4109
4110 int
4111 qla82xx_validate_template_chksum(scsi_qla_host_t *vha)
4112 {
4113         struct qla_hw_data *ha = vha->hw;
4114         uint64_t chksum = 0;
4115         uint32_t *d_ptr = (uint32_t *)ha->md_tmplt_hdr;
4116         int count = ha->md_template_size/sizeof(uint32_t);
4117
4118         while (count-- > 0)
4119                 chksum += *d_ptr++;
4120         while (chksum >> 32)
4121                 chksum = (chksum & 0xFFFFFFFF) + (chksum >> 32);
4122         return ~chksum;
4123 }
4124
4125 static void
4126 qla82xx_mark_entry_skipped(scsi_qla_host_t *vha,
4127         qla82xx_md_entry_hdr_t *entry_hdr, int index)
4128 {
4129         entry_hdr->d_ctrl.driver_flags |= QLA82XX_DBG_SKIPPED_FLAG;
4130         ql_dbg(ql_dbg_p3p, vha, 0xb036,
4131             "Skipping entry[%d]: "
4132             "ETYPE[0x%x]-ELEVEL[0x%x]\n",
4133             index, entry_hdr->entry_type,
4134             entry_hdr->d_ctrl.entry_capture_mask);
4135 }
4136
4137 int
4138 qla82xx_md_collect(scsi_qla_host_t *vha)
4139 {
4140         struct qla_hw_data *ha = vha->hw;
4141         int no_entry_hdr = 0;
4142         qla82xx_md_entry_hdr_t *entry_hdr;
4143         struct qla82xx_md_template_hdr *tmplt_hdr;
4144         uint32_t *data_ptr;
4145         uint32_t total_data_size = 0, f_capture_mask, data_collected = 0;
4146         int i = 0, rval = QLA_FUNCTION_FAILED;
4147
4148         tmplt_hdr = (struct qla82xx_md_template_hdr *)ha->md_tmplt_hdr;
4149         data_ptr = (uint32_t *)ha->md_dump;
4150
4151         if (ha->fw_dumped) {
4152                 ql_log(ql_log_warn, vha, 0xb037,
4153                     "Firmware has been previously dumped (%p) "
4154                     "-- ignoring request.\n", ha->fw_dump);
4155                 goto md_failed;
4156         }
4157
4158         ha->fw_dumped = 0;
4159
4160         if (!ha->md_tmplt_hdr || !ha->md_dump) {
4161                 ql_log(ql_log_warn, vha, 0xb038,
4162                     "Memory not allocated for minidump capture\n");
4163                 goto md_failed;
4164         }
4165
4166         if (ha->flags.isp82xx_no_md_cap) {
4167                 ql_log(ql_log_warn, vha, 0xb054,
4168                     "Forced reset from application, "
4169                     "ignore minidump capture\n");
4170                 ha->flags.isp82xx_no_md_cap = 0;
4171                 goto md_failed;
4172         }
4173
4174         if (qla82xx_validate_template_chksum(vha)) {
4175                 ql_log(ql_log_info, vha, 0xb039,
4176                     "Template checksum validation error\n");
4177                 goto md_failed;
4178         }
4179
4180         no_entry_hdr = tmplt_hdr->num_of_entries;
4181         ql_dbg(ql_dbg_p3p, vha, 0xb03a,
4182             "No of entry headers in Template: 0x%x\n", no_entry_hdr);
4183
4184         ql_dbg(ql_dbg_p3p, vha, 0xb03b,
4185             "Capture Mask obtained: 0x%x\n", tmplt_hdr->capture_debug_level);
4186
4187         f_capture_mask = tmplt_hdr->capture_debug_level & 0xFF;
4188
4189         /* Validate whether required debug level is set */
4190         if ((f_capture_mask & 0x3) != 0x3) {
4191                 ql_log(ql_log_warn, vha, 0xb03c,
4192                     "Minimum required capture mask[0x%x] level not set\n",
4193                     f_capture_mask);
4194                 goto md_failed;
4195         }
4196         tmplt_hdr->driver_capture_mask = ql2xmdcapmask;
4197
4198         tmplt_hdr->driver_info[0] = vha->host_no;
4199         tmplt_hdr->driver_info[1] = (QLA_DRIVER_MAJOR_VER << 24) |
4200             (QLA_DRIVER_MINOR_VER << 16) | (QLA_DRIVER_PATCH_VER << 8) |
4201             QLA_DRIVER_BETA_VER;
4202
4203         total_data_size = ha->md_dump_size;
4204
4205         ql_dbg(ql_dbg_p3p, vha, 0xb03d,
4206             "Total minidump data_size 0x%x to be captured\n", total_data_size);
4207
4208         /* Check whether template obtained is valid */
4209         if (tmplt_hdr->entry_type != QLA82XX_TLHDR) {
4210                 ql_log(ql_log_warn, vha, 0xb04e,
4211                     "Bad template header entry type: 0x%x obtained\n",
4212                     tmplt_hdr->entry_type);
4213                 goto md_failed;
4214         }
4215
4216         entry_hdr = (qla82xx_md_entry_hdr_t *) \
4217             (((uint8_t *)ha->md_tmplt_hdr) + tmplt_hdr->first_entry_offset);
4218
4219         /* Walk through the entry headers */
4220         for (i = 0; i < no_entry_hdr; i++) {
4221
4222                 if (data_collected > total_data_size) {
4223                         ql_log(ql_log_warn, vha, 0xb03e,
4224                             "More MiniDump data collected: [0x%x]\n",
4225                             data_collected);
4226                         goto md_failed;
4227                 }
4228
4229                 if (!(entry_hdr->d_ctrl.entry_capture_mask &
4230                     ql2xmdcapmask)) {
4231                         entry_hdr->d_ctrl.driver_flags |=
4232                             QLA82XX_DBG_SKIPPED_FLAG;
4233                         ql_dbg(ql_dbg_p3p, vha, 0xb03f,
4234                             "Skipping entry[%d]: "
4235                             "ETYPE[0x%x]-ELEVEL[0x%x]\n",
4236                             i, entry_hdr->entry_type,
4237                             entry_hdr->d_ctrl.entry_capture_mask);
4238                         goto skip_nxt_entry;
4239                 }
4240
4241                 ql_dbg(ql_dbg_p3p, vha, 0xb040,
4242                     "[%s]: data ptr[%d]: %p, entry_hdr: %p\n"
4243                     "entry_type: 0x%x, captrue_mask: 0x%x\n",
4244                     __func__, i, data_ptr, entry_hdr,
4245                     entry_hdr->entry_type,
4246                     entry_hdr->d_ctrl.entry_capture_mask);
4247
4248                 ql_dbg(ql_dbg_p3p, vha, 0xb041,
4249                     "Data collected: [0x%x], Dump size left:[0x%x]\n",
4250                     data_collected, (ha->md_dump_size - data_collected));
4251
4252                 /* Decode the entry type and take
4253                  * required action to capture debug data */
4254                 switch (entry_hdr->entry_type) {
4255                 case QLA82XX_RDEND:
4256                         qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4257                         break;
4258                 case QLA82XX_CNTRL:
4259                         rval = qla82xx_minidump_process_control(vha,
4260                             entry_hdr, &data_ptr);
4261                         if (rval != QLA_SUCCESS) {
4262                                 qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4263                                 goto md_failed;
4264                         }
4265                         break;
4266                 case QLA82XX_RDCRB:
4267                         qla82xx_minidump_process_rdcrb(vha,
4268                             entry_hdr, &data_ptr);
4269                         break;
4270                 case QLA82XX_RDMEM:
4271                         rval = qla82xx_minidump_process_rdmem(vha,
4272                             entry_hdr, &data_ptr);
4273                         if (rval != QLA_SUCCESS) {
4274                                 qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4275                                 goto md_failed;
4276                         }
4277                         break;
4278                 case QLA82XX_BOARD:
4279                 case QLA82XX_RDROM:
4280                         qla82xx_minidump_process_rdrom(vha,
4281                             entry_hdr, &data_ptr);
4282                         break;
4283                 case QLA82XX_L2DTG:
4284                 case QLA82XX_L2ITG:
4285                 case QLA82XX_L2DAT:
4286                 case QLA82XX_L2INS:
4287                         rval = qla82xx_minidump_process_l2tag(vha,
4288                             entry_hdr, &data_ptr);
4289                         if (rval != QLA_SUCCESS) {
4290                                 qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4291                                 goto md_failed;
4292                         }
4293                         break;
4294                 case QLA82XX_L1DAT:
4295                 case QLA82XX_L1INS:
4296                         qla82xx_minidump_process_l1cache(vha,
4297                             entry_hdr, &data_ptr);
4298                         break;
4299                 case QLA82XX_RDOCM:
4300                         qla82xx_minidump_process_rdocm(vha,
4301                             entry_hdr, &data_ptr);
4302                         break;
4303                 case QLA82XX_RDMUX:
4304                         qla82xx_minidump_process_rdmux(vha,
4305                             entry_hdr, &data_ptr);
4306                         break;
4307                 case QLA82XX_QUEUE:
4308                         qla82xx_minidump_process_queue(vha,
4309                             entry_hdr, &data_ptr);
4310                         break;
4311                 case QLA82XX_RDNOP:
4312                 default:
4313                         qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4314                         break;
4315                 }
4316
4317                 ql_dbg(ql_dbg_p3p, vha, 0xb042,
4318                     "[%s]: data ptr[%d]: %p\n", __func__, i, data_ptr);
4319
4320                 data_collected = (uint8_t *)data_ptr -
4321                     (uint8_t *)ha->md_dump;
4322 skip_nxt_entry:
4323                 entry_hdr = (qla82xx_md_entry_hdr_t *) \
4324                     (((uint8_t *)entry_hdr) + entry_hdr->entry_size);
4325         }
4326
4327         if (data_collected != total_data_size) {
4328                 ql_dbg(ql_dbg_p3p, vha, 0xb043,
4329                     "MiniDump data mismatch: Data collected: [0x%x],"
4330                     "total_data_size:[0x%x]\n",
4331                     data_collected, total_data_size);
4332                 goto md_failed;
4333         }
4334
4335         ql_log(ql_log_info, vha, 0xb044,
4336             "Firmware dump saved to temp buffer (%ld/%p %ld/%p).\n",
4337             vha->host_no, ha->md_tmplt_hdr, vha->host_no, ha->md_dump);
4338         ha->fw_dumped = 1;
4339         qla2x00_post_uevent_work(vha, QLA_UEVENT_CODE_FW_DUMP);
4340
4341 md_failed:
4342         return rval;
4343 }
4344
4345 int
4346 qla82xx_md_alloc(scsi_qla_host_t *vha)
4347 {
4348         struct qla_hw_data *ha = vha->hw;
4349         int i, k;
4350         struct qla82xx_md_template_hdr *tmplt_hdr;
4351
4352         tmplt_hdr = (struct qla82xx_md_template_hdr *)ha->md_tmplt_hdr;
4353
4354         if (ql2xmdcapmask < 0x3 || ql2xmdcapmask > 0x7F) {
4355                 ql2xmdcapmask = tmplt_hdr->capture_debug_level & 0xFF;
4356                 ql_log(ql_log_info, vha, 0xb045,
4357                     "Forcing driver capture mask to firmware default capture mask: 0x%x.\n",
4358                     ql2xmdcapmask);
4359         }
4360
4361         for (i = 0x2, k = 1; (i & QLA82XX_DEFAULT_CAP_MASK); i <<= 1, k++) {
4362                 if (i & ql2xmdcapmask)
4363                         ha->md_dump_size += tmplt_hdr->capture_size_array[k];
4364         }
4365
4366         if (ha->md_dump) {
4367                 ql_log(ql_log_warn, vha, 0xb046,
4368                     "Firmware dump previously allocated.\n");
4369                 return 1;
4370         }
4371
4372         ha->md_dump = vmalloc(ha->md_dump_size);
4373         if (ha->md_dump == NULL) {
4374                 ql_log(ql_log_warn, vha, 0xb047,
4375                     "Unable to allocate memory for Minidump size "
4376                     "(0x%x).\n", ha->md_dump_size);
4377                 return 1;
4378         }
4379         return 0;
4380 }
4381
4382 void
4383 qla82xx_md_free(scsi_qla_host_t *vha)
4384 {
4385         struct qla_hw_data *ha = vha->hw;
4386
4387         /* Release the template header allocated */
4388         if (ha->md_tmplt_hdr) {
4389                 ql_log(ql_log_info, vha, 0xb048,
4390                     "Free MiniDump template: %p, size (%d KB)\n",
4391                     ha->md_tmplt_hdr, ha->md_template_size / 1024);
4392                 dma_free_coherent(&ha->pdev->dev, ha->md_template_size,
4393                     ha->md_tmplt_hdr, ha->md_tmplt_hdr_dma);
4394                 ha->md_tmplt_hdr = NULL;
4395         }
4396
4397         /* Release the template data buffer allocated */
4398         if (ha->md_dump) {
4399                 ql_log(ql_log_info, vha, 0xb049,
4400                     "Free MiniDump memory: %p, size (%d KB)\n",
4401                     ha->md_dump, ha->md_dump_size / 1024);
4402                 vfree(ha->md_dump);
4403                 ha->md_dump_size = 0;
4404                 ha->md_dump = NULL;
4405         }
4406 }
4407
4408 void
4409 qla82xx_md_prep(scsi_qla_host_t *vha)
4410 {
4411         struct qla_hw_data *ha = vha->hw;
4412         int rval;
4413
4414         /* Get Minidump template size */
4415         rval = qla82xx_md_get_template_size(vha);
4416         if (rval == QLA_SUCCESS) {
4417                 ql_log(ql_log_info, vha, 0xb04a,
4418                     "MiniDump Template size obtained (%d KB)\n",
4419                     ha->md_template_size / 1024);
4420
4421                 /* Get Minidump template */
4422                 if (IS_QLA8044(ha))
4423                         rval = qla8044_md_get_template(vha);
4424                 else
4425                         rval = qla82xx_md_get_template(vha);
4426
4427                 if (rval == QLA_SUCCESS) {
4428                         ql_dbg(ql_dbg_p3p, vha, 0xb04b,
4429                             "MiniDump Template obtained\n");
4430
4431                         /* Allocate memory for minidump */
4432                         rval = qla82xx_md_alloc(vha);
4433                         if (rval == QLA_SUCCESS)
4434                                 ql_log(ql_log_info, vha, 0xb04c,
4435                                     "MiniDump memory allocated (%d KB)\n",
4436                                     ha->md_dump_size / 1024);
4437                         else {
4438                                 ql_log(ql_log_info, vha, 0xb04d,
4439                                     "Free MiniDump template: %p, size: (%d KB)\n",
4440                                     ha->md_tmplt_hdr,
4441                                     ha->md_template_size / 1024);
4442                                 dma_free_coherent(&ha->pdev->dev,
4443                                     ha->md_template_size,
4444                                     ha->md_tmplt_hdr, ha->md_tmplt_hdr_dma);
4445                                 ha->md_tmplt_hdr = NULL;
4446                         }
4447
4448                 }
4449         }
4450 }
4451
4452 int
4453 qla82xx_beacon_on(struct scsi_qla_host *vha)
4454 {
4455
4456         int rval;
4457         struct qla_hw_data *ha = vha->hw;
4458         qla82xx_idc_lock(ha);
4459         rval = qla82xx_mbx_beacon_ctl(vha, 1);
4460
4461         if (rval) {
4462                 ql_log(ql_log_warn, vha, 0xb050,
4463                     "mbx set led config failed in %s\n", __func__);
4464                 goto exit;
4465         }
4466         ha->beacon_blink_led = 1;
4467 exit:
4468         qla82xx_idc_unlock(ha);
4469         return rval;
4470 }
4471
4472 int
4473 qla82xx_beacon_off(struct scsi_qla_host *vha)
4474 {
4475
4476         int rval;
4477         struct qla_hw_data *ha = vha->hw;
4478         qla82xx_idc_lock(ha);
4479         rval = qla82xx_mbx_beacon_ctl(vha, 0);
4480
4481         if (rval) {
4482                 ql_log(ql_log_warn, vha, 0xb051,
4483                     "mbx set led config failed in %s\n", __func__);
4484                 goto exit;
4485         }
4486         ha->beacon_blink_led = 0;
4487 exit:
4488         qla82xx_idc_unlock(ha);
4489         return rval;
4490 }