drivers/scsi/qla2xxx/qla_nx.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * QLogic Fibre Channel HBA Driver
   4  * Copyright (c)  2003-2014 QLogic Corporation
   5  */
   6 #include "qla_def.h"
   7 #include <linux/delay.h>
   8 #include <linux/io-64-nonatomic-lo-hi.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 const int MD_MIU_TEST_AGT_RDDATA[] = {
  46         0x410000A8, 0x410000AC,
  47         0x410000B8, 0x410000BC
  48 };
  49
  50 static void qla82xx_crb_addr_transform_setup(void)
  51 {
  52         qla82xx_crb_addr_transform(XDMA);
  53         qla82xx_crb_addr_transform(TIMR);
  54         qla82xx_crb_addr_transform(SRE);
  55         qla82xx_crb_addr_transform(SQN3);
  56         qla82xx_crb_addr_transform(SQN2);
  57         qla82xx_crb_addr_transform(SQN1);
  58         qla82xx_crb_addr_transform(SQN0);
  59         qla82xx_crb_addr_transform(SQS3);
  60         qla82xx_crb_addr_transform(SQS2);
  61         qla82xx_crb_addr_transform(SQS1);
  62         qla82xx_crb_addr_transform(SQS0);
  63         qla82xx_crb_addr_transform(RPMX7);
  64         qla82xx_crb_addr_transform(RPMX6);
  65         qla82xx_crb_addr_transform(RPMX5);
  66         qla82xx_crb_addr_transform(RPMX4);
  67         qla82xx_crb_addr_transform(RPMX3);
  68         qla82xx_crb_addr_transform(RPMX2);
  69         qla82xx_crb_addr_transform(RPMX1);
  70         qla82xx_crb_addr_transform(RPMX0);
  71         qla82xx_crb_addr_transform(ROMUSB);
  72         qla82xx_crb_addr_transform(SN);
  73         qla82xx_crb_addr_transform(QMN);
  74         qla82xx_crb_addr_transform(QMS);
  75         qla82xx_crb_addr_transform(PGNI);
  76         qla82xx_crb_addr_transform(PGND);
  77         qla82xx_crb_addr_transform(PGN3);
  78         qla82xx_crb_addr_transform(PGN2);
  79         qla82xx_crb_addr_transform(PGN1);
  80         qla82xx_crb_addr_transform(PGN0);
  81         qla82xx_crb_addr_transform(PGSI);
  82         qla82xx_crb_addr_transform(PGSD);
  83         qla82xx_crb_addr_transform(PGS3);
  84         qla82xx_crb_addr_transform(PGS2);
  85         qla82xx_crb_addr_transform(PGS1);
  86         qla82xx_crb_addr_transform(PGS0);
  87         qla82xx_crb_addr_transform(PS);
  88         qla82xx_crb_addr_transform(PH);
  89         qla82xx_crb_addr_transform(NIU);
  90         qla82xx_crb_addr_transform(I2Q);
  91         qla82xx_crb_addr_transform(EG);
  92         qla82xx_crb_addr_transform(MN);
  93         qla82xx_crb_addr_transform(MS);
  94         qla82xx_crb_addr_transform(CAS2);
  95         qla82xx_crb_addr_transform(CAS1);
  96         qla82xx_crb_addr_transform(CAS0);
  97         qla82xx_crb_addr_transform(CAM);
  98         qla82xx_crb_addr_transform(C2C1);
  99         qla82xx_crb_addr_transform(C2C0);
 100         qla82xx_crb_addr_transform(SMB);
 101         qla82xx_crb_addr_transform(OCM0);
 102         /*
 103          * Used only in P3 just define it for P2 also.
 104          */
 105         qla82xx_crb_addr_transform(I2C0);
 106
 107         qla82xx_crb_table_initialized = 1;
 108 }
 109
 110 static struct crb_128M_2M_block_map crb_128M_2M_map[64] = {
 111         {{{0, 0,         0,         0} } },
 112         {{{1, 0x0100000, 0x0102000, 0x120000},
 113         {1, 0x0110000, 0x0120000, 0x130000},
 114         {1, 0x0120000, 0x0122000, 0x124000},
 115         {1, 0x0130000, 0x0132000, 0x126000},
 116         {1, 0x0140000, 0x0142000, 0x128000},
 117         {1, 0x0150000, 0x0152000, 0x12a000},
 118         {1, 0x0160000, 0x0170000, 0x110000},
 119         {1, 0x0170000, 0x0172000, 0x12e000},
 120         {0, 0x0000000, 0x0000000, 0x000000},
 121         {0, 0x0000000, 0x0000000, 0x000000},
 122         {0, 0x0000000, 0x0000000, 0x000000},
 123         {0, 0x0000000, 0x0000000, 0x000000},
 124         {0, 0x0000000, 0x0000000, 0x000000},
 125         {0, 0x0000000, 0x0000000, 0x000000},
 126         {1, 0x01e0000, 0x01e0800, 0x122000},
 127         {0, 0x0000000, 0x0000000, 0x000000} } } ,
 128         {{{1, 0x0200000, 0x0210000, 0x180000} } },
 129         {{{0, 0,         0,         0} } },
 130         {{{1, 0x0400000, 0x0401000, 0x169000} } },
 131         {{{1, 0x0500000, 0x0510000, 0x140000} } },
 132         {{{1, 0x0600000, 0x0610000, 0x1c0000} } },
 133         {{{1, 0x0700000, 0x0704000, 0x1b8000} } },
 134         {{{1, 0x0800000, 0x0802000, 0x170000},
 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         {0, 0x0000000, 0x0000000, 0x000000},
 145         {0, 0x0000000, 0x0000000, 0x000000},
 146         {0, 0x0000000, 0x0000000, 0x000000},
 147         {0, 0x0000000, 0x0000000, 0x000000},
 148         {0, 0x0000000, 0x0000000, 0x000000},
 149         {1, 0x08f0000, 0x08f2000, 0x172000} } },
 150         {{{1, 0x0900000, 0x0902000, 0x174000},
 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         {0, 0x0000000, 0x0000000, 0x000000},
 161         {0, 0x0000000, 0x0000000, 0x000000},
 162         {0, 0x0000000, 0x0000000, 0x000000},
 163         {0, 0x0000000, 0x0000000, 0x000000},
 164         {0, 0x0000000, 0x0000000, 0x000000},
 165         {1, 0x09f0000, 0x09f2000, 0x176000} } },
 166         {{{0, 0x0a00000, 0x0a02000, 0x178000},
 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         {0, 0x0000000, 0x0000000, 0x000000},
 177         {0, 0x0000000, 0x0000000, 0x000000},
 178         {0, 0x0000000, 0x0000000, 0x000000},
 179         {0, 0x0000000, 0x0000000, 0x000000},
 180         {0, 0x0000000, 0x0000000, 0x000000},
 181         {1, 0x0af0000, 0x0af2000, 0x17a000} } },
 182         {{{0, 0x0b00000, 0x0b02000, 0x17c000},
 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         {0, 0x0000000, 0x0000000, 0x000000},
 193         {0, 0x0000000, 0x0000000, 0x000000},
 194         {0, 0x0000000, 0x0000000, 0x000000},
 195         {0, 0x0000000, 0x0000000, 0x000000},
 196         {0, 0x0000000, 0x0000000, 0x000000},
 197         {1, 0x0bf0000, 0x0bf2000, 0x17e000} } },
 198         {{{1, 0x0c00000, 0x0c04000, 0x1d4000} } },
 199         {{{1, 0x0d00000, 0x0d04000, 0x1a4000} } },
 200         {{{1, 0x0e00000, 0x0e04000, 0x1a0000} } },
 201         {{{1, 0x0f00000, 0x0f01000, 0x164000} } },
 202         {{{0, 0x1000000, 0x1004000, 0x1a8000} } },
 203         {{{1, 0x1100000, 0x1101000, 0x160000} } },
 204         {{{1, 0x1200000, 0x1201000, 0x161000} } },
 205         {{{1, 0x1300000, 0x1301000, 0x162000} } },
 206         {{{1, 0x1400000, 0x1401000, 0x163000} } },
 207         {{{1, 0x1500000, 0x1501000, 0x165000} } },
 208         {{{1, 0x1600000, 0x1601000, 0x166000} } },
 209         {{{0, 0,         0,         0} } },
 210         {{{0, 0,         0,         0} } },
 211         {{{0, 0,         0,         0} } },
 212         {{{0, 0,         0,         0} } },
 213         {{{0, 0,         0,         0} } },
 214         {{{0, 0,         0,         0} } },
 215         {{{1, 0x1d00000, 0x1d10000, 0x190000} } },
 216         {{{1, 0x1e00000, 0x1e01000, 0x16a000} } },
 217         {{{1, 0x1f00000, 0x1f10000, 0x150000} } },
 218         {{{0} } },
 219         {{{1, 0x2100000, 0x2102000, 0x120000},
 220         {1, 0x2110000, 0x2120000, 0x130000},
 221         {1, 0x2120000, 0x2122000, 0x124000},
 222         {1, 0x2130000, 0x2132000, 0x126000},
 223         {1, 0x2140000, 0x2142000, 0x128000},
 224         {1, 0x2150000, 0x2152000, 0x12a000},
 225         {1, 0x2160000, 0x2170000, 0x110000},
 226         {1, 0x2170000, 0x2172000, 0x12e000},
 227         {0, 0x0000000, 0x0000000, 0x000000},
 228         {0, 0x0000000, 0x0000000, 0x000000},
 229         {0, 0x0000000, 0x0000000, 0x000000},
 230         {0, 0x0000000, 0x0000000, 0x000000},
 231         {0, 0x0000000, 0x0000000, 0x000000},
 232         {0, 0x0000000, 0x0000000, 0x000000},
 233         {0, 0x0000000, 0x0000000, 0x000000},
 234         {0, 0x0000000, 0x0000000, 0x000000} } },
 235         {{{1, 0x2200000, 0x2204000, 0x1b0000} } },
 236         {{{0} } },
 237         {{{0} } },
 238         {{{0} } },
 239         {{{0} } },
 240         {{{0} } },
 241         {{{1, 0x2800000, 0x2804000, 0x1a4000} } },
 242         {{{1, 0x2900000, 0x2901000, 0x16b000} } },
 243         {{{1, 0x2a00000, 0x2a00400, 0x1ac400} } },
 244         {{{1, 0x2b00000, 0x2b00400, 0x1ac800} } },
 245         {{{1, 0x2c00000, 0x2c00400, 0x1acc00} } },
 246         {{{1, 0x2d00000, 0x2d00400, 0x1ad000} } },
 247         {{{1, 0x2e00000, 0x2e00400, 0x1ad400} } },
 248         {{{1, 0x2f00000, 0x2f00400, 0x1ad800} } },
 249         {{{1, 0x3000000, 0x3000400, 0x1adc00} } },
 250         {{{0, 0x3100000, 0x3104000, 0x1a8000} } },
 251         {{{1, 0x3200000, 0x3204000, 0x1d4000} } },
 252         {{{1, 0x3300000, 0x3304000, 0x1a0000} } },
 253         {{{0} } },
 254         {{{1, 0x3500000, 0x3500400, 0x1ac000} } },
 255         {{{1, 0x3600000, 0x3600400, 0x1ae000} } },
 256         {{{1, 0x3700000, 0x3700400, 0x1ae400} } },
 257         {{{1, 0x3800000, 0x3804000, 0x1d0000} } },
 258         {{{1, 0x3900000, 0x3904000, 0x1b4000} } },
 259         {{{1, 0x3a00000, 0x3a04000, 0x1d8000} } },
 260         {{{0} } },
 261         {{{0} } },
 262         {{{1, 0x3d00000, 0x3d04000, 0x1dc000} } },
 263         {{{1, 0x3e00000, 0x3e01000, 0x167000} } },
 264         {{{1, 0x3f00000, 0x3f01000, 0x168000} } }
 265 };
 266
 267 /*
 268  * top 12 bits of crb internal address (hub, agent)
 269  */
 270 static unsigned qla82xx_crb_hub_agt[64] = {
 271         0,
 272         QLA82XX_HW_CRB_HUB_AGT_ADR_PS,
 273         QLA82XX_HW_CRB_HUB_AGT_ADR_MN,
 274         QLA82XX_HW_CRB_HUB_AGT_ADR_MS,
 275         0,
 276         QLA82XX_HW_CRB_HUB_AGT_ADR_SRE,
 277         QLA82XX_HW_CRB_HUB_AGT_ADR_NIU,
 278         QLA82XX_HW_CRB_HUB_AGT_ADR_QMN,
 279         QLA82XX_HW_CRB_HUB_AGT_ADR_SQN0,
 280         QLA82XX_HW_CRB_HUB_AGT_ADR_SQN1,
 281         QLA82XX_HW_CRB_HUB_AGT_ADR_SQN2,
 282         QLA82XX_HW_CRB_HUB_AGT_ADR_SQN3,
 283         QLA82XX_HW_CRB_HUB_AGT_ADR_I2Q,
 284         QLA82XX_HW_CRB_HUB_AGT_ADR_TIMR,
 285         QLA82XX_HW_CRB_HUB_AGT_ADR_ROMUSB,
 286         QLA82XX_HW_CRB_HUB_AGT_ADR_PGN4,
 287         QLA82XX_HW_CRB_HUB_AGT_ADR_XDMA,
 288         QLA82XX_HW_CRB_HUB_AGT_ADR_PGN0,
 289         QLA82XX_HW_CRB_HUB_AGT_ADR_PGN1,
 290         QLA82XX_HW_CRB_HUB_AGT_ADR_PGN2,
 291         QLA82XX_HW_CRB_HUB_AGT_ADR_PGN3,
 292         QLA82XX_HW_CRB_HUB_AGT_ADR_PGND,
 293         QLA82XX_HW_CRB_HUB_AGT_ADR_PGNI,
 294         QLA82XX_HW_CRB_HUB_AGT_ADR_PGS0,
 295         QLA82XX_HW_CRB_HUB_AGT_ADR_PGS1,
 296         QLA82XX_HW_CRB_HUB_AGT_ADR_PGS2,
 297         QLA82XX_HW_CRB_HUB_AGT_ADR_PGS3,
 298         0,
 299         QLA82XX_HW_CRB_HUB_AGT_ADR_PGSI,
 300         QLA82XX_HW_CRB_HUB_AGT_ADR_SN,
 301         0,
 302         QLA82XX_HW_CRB_HUB_AGT_ADR_EG,
 303         0,
 304         QLA82XX_HW_CRB_HUB_AGT_ADR_PS,
 305         QLA82XX_HW_CRB_HUB_AGT_ADR_CAM,
 306         0,
 307         0,
 308         0,
 309         0,
 310         0,
 311         QLA82XX_HW_CRB_HUB_AGT_ADR_TIMR,
 312         0,
 313         QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX1,
 314         QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX2,
 315         QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX3,
 316         QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX4,
 317         QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX5,
 318         QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX6,
 319         QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX7,
 320         QLA82XX_HW_CRB_HUB_AGT_ADR_XDMA,
 321         QLA82XX_HW_CRB_HUB_AGT_ADR_I2Q,
 322         QLA82XX_HW_CRB_HUB_AGT_ADR_ROMUSB,
 323         0,
 324         QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX0,
 325         QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX8,
 326         QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX9,
 327         QLA82XX_HW_CRB_HUB_AGT_ADR_OCM0,
 328         0,
 329         QLA82XX_HW_CRB_HUB_AGT_ADR_SMB,
 330         QLA82XX_HW_CRB_HUB_AGT_ADR_I2C0,
 331         QLA82XX_HW_CRB_HUB_AGT_ADR_I2C1,
 332         0,
 333         QLA82XX_HW_CRB_HUB_AGT_ADR_PGNC,
 334         0,
 335 };
 336
 337 /* Device states */
 338 static char *q_dev_state[] = {
 339          "Unknown",
 340         "Cold",
 341         "Initializing",
 342         "Ready",
 343         "Need Reset",
 344         "Need Quiescent",
 345         "Failed",
 346         "Quiescent",
 347 };
 348
 349 char *qdev_state(uint32_t dev_state)
 350 {
 351         return q_dev_state[dev_state];
 352 }
 353
 354 /*
 355  * In: 'off_in' is offset from CRB space in 128M pci map
 356  * Out: 'off_out' is 2M pci map addr
 357  * side effect: lock crb window
 358  */
 359 static void
 360 qla82xx_pci_set_crbwindow_2M(struct qla_hw_data *ha, ulong off_in,
 361                              void __iomem **off_out)
 362 {
 363         u32 win_read;
 364         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 365
 366         ha->crb_win = CRB_HI(off_in);
 367         writel(ha->crb_win, CRB_WINDOW_2M + ha->nx_pcibase);
 368
 369         /* Read back value to make sure write has gone through before trying
 370          * to use it.
 371          */
 372         win_read = rd_reg_dword(CRB_WINDOW_2M + ha->nx_pcibase);
 373         if (win_read != ha->crb_win) {
 374                 ql_dbg(ql_dbg_p3p, vha, 0xb000,
 375                     "%s: Written crbwin (0x%x) "
 376                     "!= Read crbwin (0x%x), off=0x%lx.\n",
 377                     __func__, ha->crb_win, win_read, off_in);
 378         }
 379         *off_out = (off_in & MASK(16)) + CRB_INDIRECT_2M + ha->nx_pcibase;
 380 }
 381
 382 static int
 383 qla82xx_pci_get_crb_addr_2M(struct qla_hw_data *ha, ulong off_in,
 384                             void __iomem **off_out)
 385 {
 386         struct crb_128M_2M_sub_block_map *m;
 387
 388         if (off_in >= QLA82XX_CRB_MAX)
 389                 return -1;
 390
 391         if (off_in >= QLA82XX_PCI_CAMQM && off_in < QLA82XX_PCI_CAMQM_2M_END) {
 392                 *off_out = (off_in - QLA82XX_PCI_CAMQM) +
 393                     QLA82XX_PCI_CAMQM_2M_BASE + ha->nx_pcibase;
 394                 return 0;
 395         }
 396
 397         if (off_in < QLA82XX_PCI_CRBSPACE)
 398                 return -1;
 399
 400         off_in -= QLA82XX_PCI_CRBSPACE;
 401
 402         /* Try direct map */
 403         m = &crb_128M_2M_map[CRB_BLK(off_in)].sub_block[CRB_SUBBLK(off_in)];
 404
 405         if (m->valid && (m->start_128M <= off_in) && (m->end_128M > off_in)) {
 406                 *off_out = off_in + m->start_2M - m->start_128M + ha->nx_pcibase;
 407                 return 0;
 408         }
 409         /* Not in direct map, use crb window */
 410         *off_out = (void __iomem *)off_in;
 411         return 1;
 412 }
 413
 414 #define CRB_WIN_LOCK_TIMEOUT 100000000
 415 static int qla82xx_crb_win_lock(struct qla_hw_data *ha)
 416 {
 417         int done = 0, timeout = 0;
 418
 419         while (!done) {
 420                 /* acquire semaphore3 from PCI HW block */
 421                 done = qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_LOCK));
 422                 if (done == 1)
 423                         break;
 424                 if (timeout >= CRB_WIN_LOCK_TIMEOUT)
 425                         return -1;
 426                 timeout++;
 427         }
 428         qla82xx_wr_32(ha, QLA82XX_CRB_WIN_LOCK_ID, ha->portnum);
 429         return 0;
 430 }
 431
 432 int
 433 qla82xx_wr_32(struct qla_hw_data *ha, ulong off_in, u32 data)
 434 {
 435         void __iomem *off;
 436         unsigned long flags = 0;
 437         int rv;
 438
 439         rv = qla82xx_pci_get_crb_addr_2M(ha, off_in, &off);
 440
 441         BUG_ON(rv == -1);
 442
 443         if (rv == 1) {
 444 #ifndef __CHECKER__
 445                 write_lock_irqsave(&ha->hw_lock, flags);
 446 #endif
 447                 qla82xx_crb_win_lock(ha);
 448                 qla82xx_pci_set_crbwindow_2M(ha, off_in, &off);
 449         }
 450
 451         writel(data, (void __iomem *)off);
 452
 453         if (rv == 1) {
 454                 qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_UNLOCK));
 455 #ifndef __CHECKER__
 456                 write_unlock_irqrestore(&ha->hw_lock, flags);
 457 #endif
 458         }
 459         return 0;
 460 }
 461
 462 int
 463 qla82xx_rd_32(struct qla_hw_data *ha, ulong off_in)
 464 {
 465         void __iomem *off;
 466         unsigned long flags = 0;
 467         int rv;
 468         u32 data;
 469
 470         rv = qla82xx_pci_get_crb_addr_2M(ha, off_in, &off);
 471
 472         BUG_ON(rv == -1);
 473
 474         if (rv == 1) {
 475 #ifndef __CHECKER__
 476                 write_lock_irqsave(&ha->hw_lock, flags);
 477 #endif
 478                 qla82xx_crb_win_lock(ha);
 479                 qla82xx_pci_set_crbwindow_2M(ha, off_in, &off);
 480         }
 481         data = rd_reg_dword(off);
 482
 483         if (rv == 1) {
 484                 qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_UNLOCK));
 485 #ifndef __CHECKER__
 486                 write_unlock_irqrestore(&ha->hw_lock, flags);
 487 #endif
 488         }
 489         return data;
 490 }
 491
 492 /*
 493  * Context: task, might sleep
 494  */
 495 int qla82xx_idc_lock(struct qla_hw_data *ha)
 496 {
 497         const int delay_ms = 100, timeout_ms = 2000;
 498         int done, total = 0;
 499
 500         might_sleep();
 501
 502         while (true) {
 503                 /* acquire semaphore5 from PCI HW block */
 504                 done = qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM5_LOCK));
 505                 if (done == 1)
 506                         break;
 507                 if (WARN_ON_ONCE(total >= timeout_ms))
 508                         return -1;
 509
 510                 total += delay_ms;
 511                 msleep(delay_ms);
 512         }
 513
 514         return 0;
 515 }
 516
 517 void qla82xx_idc_unlock(struct qla_hw_data *ha)
 518 {
 519         qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM5_UNLOCK));
 520 }
 521
 522 /*
 523  * check memory access boundary.
 524  * used by test agent. support ddr access only for now
 525  */
 526 static unsigned long
 527 qla82xx_pci_mem_bound_check(struct qla_hw_data *ha,
 528         unsigned long long addr, int size)
 529 {
 530         if (!addr_in_range(addr, QLA82XX_ADDR_DDR_NET,
 531                 QLA82XX_ADDR_DDR_NET_MAX) ||
 532                 !addr_in_range(addr + size - 1, QLA82XX_ADDR_DDR_NET,
 533                 QLA82XX_ADDR_DDR_NET_MAX) ||
 534                 ((size != 1) && (size != 2) && (size != 4) && (size != 8)))
 535                         return 0;
 536         else
 537                 return 1;
 538 }
 539
 540 static int qla82xx_pci_set_window_warning_count;
 541
 542 static unsigned long
 543 qla82xx_pci_set_window(struct qla_hw_data *ha, unsigned long long addr)
 544 {
 545         int window;
 546         u32 win_read;
 547         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 548
 549         if (addr_in_range(addr, QLA82XX_ADDR_DDR_NET,
 550                 QLA82XX_ADDR_DDR_NET_MAX)) {
 551                 /* DDR network side */
 552                 window = MN_WIN(addr);
 553                 ha->ddr_mn_window = window;
 554                 qla82xx_wr_32(ha,
 555                         ha->mn_win_crb | QLA82XX_PCI_CRBSPACE, window);
 556                 win_read = qla82xx_rd_32(ha,
 557                         ha->mn_win_crb | QLA82XX_PCI_CRBSPACE);
 558                 if ((win_read << 17) != window) {
 559                         ql_dbg(ql_dbg_p3p, vha, 0xb003,
 560                             "%s: Written MNwin (0x%x) != Read MNwin (0x%x).\n",
 561                             __func__, window, win_read);
 562                 }
 563                 addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_DDR_NET;
 564         } else if (addr_in_range(addr, QLA82XX_ADDR_OCM0,
 565                 QLA82XX_ADDR_OCM0_MAX)) {
 566                 unsigned int temp1;
 567
 568                 if ((addr & 0x00ff800) == 0xff800) {
 569                         ql_log(ql_log_warn, vha, 0xb004,
 570                             "%s: QM access not handled.\n", __func__);
 571                         addr = -1UL;
 572                 }
 573                 window = OCM_WIN(addr);
 574                 ha->ddr_mn_window = window;
 575                 qla82xx_wr_32(ha,
 576                         ha->mn_win_crb | QLA82XX_PCI_CRBSPACE, window);
 577                 win_read = qla82xx_rd_32(ha,
 578                         ha->mn_win_crb | QLA82XX_PCI_CRBSPACE);
 579                 temp1 = ((window & 0x1FF) << 7) |
 580                     ((window & 0x0FFFE0000) >> 17);
 581                 if (win_read != temp1) {
 582                         ql_log(ql_log_warn, vha, 0xb005,
 583                             "%s: Written OCMwin (0x%x) != Read OCMwin (0x%x).\n",
 584                             __func__, temp1, win_read);
 585                 }
 586                 addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_OCM0_2M;
 587
 588         } else if (addr_in_range(addr, QLA82XX_ADDR_QDR_NET,
 589                 QLA82XX_P3_ADDR_QDR_NET_MAX)) {
 590                 /* QDR network side */
 591                 window = MS_WIN(addr);
 592                 ha->qdr_sn_window = window;
 593                 qla82xx_wr_32(ha,
 594                         ha->ms_win_crb | QLA82XX_PCI_CRBSPACE, window);
 595                 win_read = qla82xx_rd_32(ha,
 596                         ha->ms_win_crb | QLA82XX_PCI_CRBSPACE);
 597                 if (win_read != window) {
 598                         ql_log(ql_log_warn, vha, 0xb006,
 599                             "%s: Written MSwin (0x%x) != Read MSwin (0x%x).\n",
 600                             __func__, window, win_read);
 601                 }
 602                 addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_QDR_NET;
 603         } else {
 604                 /*
 605                  * peg gdb frequently accesses memory that doesn't exist,
 606                  * this limits the chit chat so debugging isn't slowed down.
 607                  */
 608                 if ((qla82xx_pci_set_window_warning_count++ < 8) ||
 609                     (qla82xx_pci_set_window_warning_count%64 == 0)) {
 610                         ql_log(ql_log_warn, vha, 0xb007,
 611                             "%s: Warning:%s Unknown address range!.\n",
 612                             __func__, QLA2XXX_DRIVER_NAME);
 613                 }
 614                 addr = -1UL;
 615         }
 616         return addr;
 617 }
 618
 619 /* check if address is in the same windows as the previous access */
 620 static int qla82xx_pci_is_same_window(struct qla_hw_data *ha,
 621         unsigned long long addr)
 622 {
 623         int                     window;
 624         unsigned long long      qdr_max;
 625
 626         qdr_max = QLA82XX_P3_ADDR_QDR_NET_MAX;
 627
 628         /* DDR network side */
 629         if (addr_in_range(addr, QLA82XX_ADDR_DDR_NET,
 630                 QLA82XX_ADDR_DDR_NET_MAX))
 631                 BUG();
 632         else if (addr_in_range(addr, QLA82XX_ADDR_OCM0,
 633                 QLA82XX_ADDR_OCM0_MAX))
 634                 return 1;
 635         else if (addr_in_range(addr, QLA82XX_ADDR_OCM1,
 636                 QLA82XX_ADDR_OCM1_MAX))
 637                 return 1;
 638         else if (addr_in_range(addr, QLA82XX_ADDR_QDR_NET, qdr_max)) {
 639                 /* QDR network side */
 640                 window = ((addr - QLA82XX_ADDR_QDR_NET) >> 22) & 0x3f;
 641                 if (ha->qdr_sn_window == window)
 642                         return 1;
 643         }
 644         return 0;
 645 }
 646
 647 static int qla82xx_pci_mem_read_direct(struct qla_hw_data *ha,
 648         u64 off, void *data, int size)
 649 {
 650         unsigned long   flags;
 651         void __iomem *addr = NULL;
 652         int             ret = 0;
 653         u64             start;
 654         uint8_t __iomem  *mem_ptr = NULL;
 655         unsigned long   mem_base;
 656         unsigned long   mem_page;
 657         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 658
 659         write_lock_irqsave(&ha->hw_lock, flags);
 660
 661         /*
 662          * If attempting to access unknown address or straddle hw windows,
 663          * do not access.
 664          */
 665         start = qla82xx_pci_set_window(ha, off);
 666         if ((start == -1UL) ||
 667                 (qla82xx_pci_is_same_window(ha, off + size - 1) == 0)) {
 668                 write_unlock_irqrestore(&ha->hw_lock, flags);
 669                 ql_log(ql_log_fatal, vha, 0xb008,
 670                     "%s out of bound pci memory "
 671                     "access, offset is 0x%llx.\n",
 672                     QLA2XXX_DRIVER_NAME, off);
 673                 return -1;
 674         }
 675
 676         write_unlock_irqrestore(&ha->hw_lock, flags);
 677         mem_base = pci_resource_start(ha->pdev, 0);
 678         mem_page = start & PAGE_MASK;
 679         /* Map two pages whenever user tries to access addresses in two
 680         * consecutive pages.
 681         */
 682         if (mem_page != ((start + size - 1) & PAGE_MASK))
 683                 mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE * 2);
 684         else
 685                 mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE);
 686         if (mem_ptr == NULL) {
 687                 *(u8  *)data = 0;
 688                 return -1;
 689         }
 690         addr = mem_ptr;
 691         addr += start & (PAGE_SIZE - 1);
 692         write_lock_irqsave(&ha->hw_lock, flags);
 693
 694         switch (size) {
 695         case 1:
 696                 *(u8  *)data = readb(addr);
 697                 break;
 698         case 2:
 699                 *(u16 *)data = readw(addr);
 700                 break;
 701         case 4:
 702                 *(u32 *)data = readl(addr);
 703                 break;
 704         case 8:
 705                 *(u64 *)data = readq(addr);
 706                 break;
 707         default:
 708                 ret = -1;
 709                 break;
 710         }
 711         write_unlock_irqrestore(&ha->hw_lock, flags);
 712
 713         if (mem_ptr)
 714                 iounmap(mem_ptr);
 715         return ret;
 716 }
 717
 718 static int
 719 qla82xx_pci_mem_write_direct(struct qla_hw_data *ha,
 720         u64 off, void *data, int size)
 721 {
 722         unsigned long   flags;
 723         void  __iomem *addr = NULL;
 724         int             ret = 0;
 725         u64             start;
 726         uint8_t __iomem *mem_ptr = NULL;
 727         unsigned long   mem_base;
 728         unsigned long   mem_page;
 729         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 730
 731         write_lock_irqsave(&ha->hw_lock, flags);
 732
 733         /*
 734          * If attempting to access unknown address or straddle hw windows,
 735          * do not access.
 736          */
 737         start = qla82xx_pci_set_window(ha, off);
 738         if ((start == -1UL) ||
 739                 (qla82xx_pci_is_same_window(ha, off + size - 1) == 0)) {
 740                 write_unlock_irqrestore(&ha->hw_lock, flags);
 741                 ql_log(ql_log_fatal, vha, 0xb009,
 742                     "%s out of bound memory "
 743                     "access, offset is 0x%llx.\n",
 744                     QLA2XXX_DRIVER_NAME, off);
 745                 return -1;
 746         }
 747
 748         write_unlock_irqrestore(&ha->hw_lock, flags);
 749         mem_base = pci_resource_start(ha->pdev, 0);
 750         mem_page = start & PAGE_MASK;
 751         /* Map two pages whenever user tries to access addresses in two
 752          * consecutive pages.
 753          */
 754         if (mem_page != ((start + size - 1) & PAGE_MASK))
 755                 mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE*2);
 756         else
 757                 mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE);
 758         if (mem_ptr == NULL)
 759                 return -1;
 760
 761         addr = mem_ptr;
 762         addr += start & (PAGE_SIZE - 1);
 763         write_lock_irqsave(&ha->hw_lock, flags);
 764
 765         switch (size) {
 766         case 1:
 767                 writeb(*(u8  *)data, addr);
 768                 break;
 769         case 2:
 770                 writew(*(u16 *)data, addr);
 771                 break;
 772         case 4:
 773                 writel(*(u32 *)data, addr);
 774                 break;
 775         case 8:
 776                 writeq(*(u64 *)data, addr);
 777                 break;
 778         default:
 779                 ret = -1;
 780                 break;
 781         }
 782         write_unlock_irqrestore(&ha->hw_lock, flags);
 783         if (mem_ptr)
 784                 iounmap(mem_ptr);
 785         return ret;
 786 }
 787
 788 #define MTU_FUDGE_FACTOR 100
 789 static unsigned long
 790 qla82xx_decode_crb_addr(unsigned long addr)
 791 {
 792         int i;
 793         unsigned long base_addr, offset, pci_base;
 794
 795         if (!qla82xx_crb_table_initialized)
 796                 qla82xx_crb_addr_transform_setup();
 797
 798         pci_base = ADDR_ERROR;
 799         base_addr = addr & 0xfff00000;
 800         offset = addr & 0x000fffff;
 801
 802         for (i = 0; i < MAX_CRB_XFORM; i++) {
 803                 if (crb_addr_xform[i] == base_addr) {
 804                         pci_base = i << 20;
 805                         break;
 806                 }
 807         }
 808         if (pci_base == ADDR_ERROR)
 809                 return pci_base;
 810         return pci_base + offset;
 811 }
 812
 813 static long rom_max_timeout = 100;
 814 static long qla82xx_rom_lock_timeout = 100;
 815
 816 static int
 817 qla82xx_rom_lock(struct qla_hw_data *ha)
 818 {
 819         int done = 0, timeout = 0;
 820         uint32_t lock_owner = 0;
 821         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 822
 823         while (!done) {
 824                 /* acquire semaphore2 from PCI HW block */
 825                 done = qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_LOCK));
 826                 if (done == 1)
 827                         break;
 828                 if (timeout >= qla82xx_rom_lock_timeout) {
 829                         lock_owner = qla82xx_rd_32(ha, QLA82XX_ROM_LOCK_ID);
 830                         ql_dbg(ql_dbg_p3p, vha, 0xb157,
 831                             "%s: Simultaneous flash access by following ports, active port = %d: accessing port = %d",
 832                             __func__, ha->portnum, lock_owner);
 833                         return -1;
 834                 }
 835                 timeout++;
 836         }
 837         qla82xx_wr_32(ha, QLA82XX_ROM_LOCK_ID, ha->portnum);
 838         return 0;
 839 }
 840
 841 static void
 842 qla82xx_rom_unlock(struct qla_hw_data *ha)
 843 {
 844         qla82xx_wr_32(ha, QLA82XX_ROM_LOCK_ID, 0xffffffff);
 845         qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_UNLOCK));
 846 }
 847
 848 static int
 849 qla82xx_wait_rom_busy(struct qla_hw_data *ha)
 850 {
 851         long timeout = 0;
 852         long done = 0 ;
 853         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 854
 855         while (done == 0) {
 856                 done = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_STATUS);
 857                 done &= 4;
 858                 timeout++;
 859                 if (timeout >= rom_max_timeout) {
 860                         ql_dbg(ql_dbg_p3p, vha, 0xb00a,
 861                             "%s: Timeout reached waiting for rom busy.\n",
 862                             QLA2XXX_DRIVER_NAME);
 863                         return -1;
 864                 }
 865         }
 866         return 0;
 867 }
 868
 869 static int
 870 qla82xx_wait_rom_done(struct qla_hw_data *ha)
 871 {
 872         long timeout = 0;
 873         long done = 0 ;
 874         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 875
 876         while (done == 0) {
 877                 done = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_STATUS);
 878                 done &= 2;
 879                 timeout++;
 880                 if (timeout >= rom_max_timeout) {
 881                         ql_dbg(ql_dbg_p3p, vha, 0xb00b,
 882                             "%s: Timeout reached waiting for rom done.\n",
 883                             QLA2XXX_DRIVER_NAME);
 884                         return -1;
 885                 }
 886         }
 887         return 0;
 888 }
 889
 890 static int
 891 qla82xx_md_rw_32(struct qla_hw_data *ha, uint32_t off, u32 data, uint8_t flag)
 892 {
 893         uint32_t  off_value, rval = 0;
 894
 895         wrt_reg_dword(CRB_WINDOW_2M + ha->nx_pcibase, off & 0xFFFF0000);
 896
 897         /* Read back value to make sure write has gone through */
 898         rd_reg_dword(CRB_WINDOW_2M + ha->nx_pcibase);
 899         off_value  = (off & 0x0000FFFF);
 900
 901         if (flag)
 902                 wrt_reg_dword(off_value + CRB_INDIRECT_2M + ha->nx_pcibase,
 903                               data);
 904         else
 905                 rval = rd_reg_dword(off_value + CRB_INDIRECT_2M +
 906                                     ha->nx_pcibase);
 907
 908         return rval;
 909 }
 910
 911 static int
 912 qla82xx_do_rom_fast_read(struct qla_hw_data *ha, int addr, int *valp)
 913 {
 914         /* Dword reads to flash. */
 915         qla82xx_md_rw_32(ha, MD_DIRECT_ROM_WINDOW, (addr & 0xFFFF0000), 1);
 916         *valp = qla82xx_md_rw_32(ha, MD_DIRECT_ROM_READ_BASE +
 917             (addr & 0x0000FFFF), 0, 0);
 918
 919         return 0;
 920 }
 921
 922 static int
 923 qla82xx_rom_fast_read(struct qla_hw_data *ha, int addr, int *valp)
 924 {
 925         int ret, loops = 0;
 926         uint32_t lock_owner = 0;
 927         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 928
 929         while ((qla82xx_rom_lock(ha) != 0) && (loops < 50000)) {
 930                 udelay(100);
 931                 schedule();
 932                 loops++;
 933         }
 934         if (loops >= 50000) {
 935                 lock_owner = qla82xx_rd_32(ha, QLA82XX_ROM_LOCK_ID);
 936                 ql_log(ql_log_fatal, vha, 0x00b9,
 937                     "Failed to acquire SEM2 lock, Lock Owner %u.\n",
 938                     lock_owner);
 939                 return -1;
 940         }
 941         ret = qla82xx_do_rom_fast_read(ha, addr, valp);
 942         qla82xx_rom_unlock(ha);
 943         return ret;
 944 }
 945
 946 static int
 947 qla82xx_read_status_reg(struct qla_hw_data *ha, uint32_t *val)
 948 {
 949         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 950
 951         qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_RDSR);
 952         qla82xx_wait_rom_busy(ha);
 953         if (qla82xx_wait_rom_done(ha)) {
 954                 ql_log(ql_log_warn, vha, 0xb00c,
 955                     "Error waiting for rom done.\n");
 956                 return -1;
 957         }
 958         *val = qla82xx_rd_32(ha, QLA82XX_ROMUSB_ROM_RDATA);
 959         return 0;
 960 }
 961
 962 static int
 963 qla82xx_flash_wait_write_finish(struct qla_hw_data *ha)
 964 {
 965         uint32_t val = 0;
 966         int i, ret;
 967         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
 968
 969         qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 0);
 970         for (i = 0; i < 50000; i++) {
 971                 ret = qla82xx_read_status_reg(ha, &val);
 972                 if (ret < 0 || (val & 1) == 0)
 973                         return ret;
 974                 udelay(10);
 975                 cond_resched();
 976         }
 977         ql_log(ql_log_warn, vha, 0xb00d,
 978                "Timeout reached waiting for write finish.\n");
 979         return -1;
 980 }
 981
 982 static int
 983 qla82xx_flash_set_write_enable(struct qla_hw_data *ha)
 984 {
 985         uint32_t val;
 986
 987         qla82xx_wait_rom_busy(ha);
 988         qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 0);
 989         qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_WREN);
 990         qla82xx_wait_rom_busy(ha);
 991         if (qla82xx_wait_rom_done(ha))
 992                 return -1;
 993         if (qla82xx_read_status_reg(ha, &val) != 0)
 994                 return -1;
 995         if ((val & 2) != 2)
 996                 return -1;
 997         return 0;
 998 }
 999
1000 static int
1001 qla82xx_write_status_reg(struct qla_hw_data *ha, uint32_t val)
1002 {
1003         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1004
1005         if (qla82xx_flash_set_write_enable(ha))
1006                 return -1;
1007         qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_WDATA, val);
1008         qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, 0x1);
1009         if (qla82xx_wait_rom_done(ha)) {
1010                 ql_log(ql_log_warn, vha, 0xb00e,
1011                     "Error waiting for rom done.\n");
1012                 return -1;
1013         }
1014         return qla82xx_flash_wait_write_finish(ha);
1015 }
1016
1017 static int
1018 qla82xx_write_disable_flash(struct qla_hw_data *ha)
1019 {
1020         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1021
1022         qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_WRDI);
1023         if (qla82xx_wait_rom_done(ha)) {
1024                 ql_log(ql_log_warn, vha, 0xb00f,
1025                     "Error waiting for rom done.\n");
1026                 return -1;
1027         }
1028         return 0;
1029 }
1030
1031 static int
1032 ql82xx_rom_lock_d(struct qla_hw_data *ha)
1033 {
1034         int loops = 0;
1035         uint32_t lock_owner = 0;
1036         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1037
1038         while ((qla82xx_rom_lock(ha) != 0) && (loops < 50000)) {
1039                 udelay(100);
1040                 cond_resched();
1041                 loops++;
1042         }
1043         if (loops >= 50000) {
1044                 lock_owner = qla82xx_rd_32(ha, QLA82XX_ROM_LOCK_ID);
1045                 ql_log(ql_log_warn, vha, 0xb010,
1046                     "ROM lock failed, Lock Owner %u.\n", lock_owner);
1047                 return -1;
1048         }
1049         return 0;
1050 }
1051
1052 static int
1053 qla82xx_write_flash_dword(struct qla_hw_data *ha, uint32_t flashaddr,
1054         uint32_t data)
1055 {
1056         int ret = 0;
1057         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1058
1059         ret = ql82xx_rom_lock_d(ha);
1060         if (ret < 0) {
1061                 ql_log(ql_log_warn, vha, 0xb011,
1062                     "ROM lock failed.\n");
1063                 return ret;
1064         }
1065
1066         ret = qla82xx_flash_set_write_enable(ha);
1067         if (ret < 0)
1068                 goto done_write;
1069
1070         qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_WDATA, data);
1071         qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ADDRESS, flashaddr);
1072         qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 3);
1073         qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_PP);
1074         qla82xx_wait_rom_busy(ha);
1075         if (qla82xx_wait_rom_done(ha)) {
1076                 ql_log(ql_log_warn, vha, 0xb012,
1077                     "Error waiting for rom done.\n");
1078                 ret = -1;
1079                 goto done_write;
1080         }
1081
1082         ret = qla82xx_flash_wait_write_finish(ha);
1083
1084 done_write:
1085         qla82xx_rom_unlock(ha);
1086         return ret;
1087 }
1088
1089 /* This routine does CRB initialize sequence
1090  *  to put the ISP into operational state
1091  */
1092 static int
1093 qla82xx_pinit_from_rom(scsi_qla_host_t *vha)
1094 {
1095         int addr, val;
1096         int i ;
1097         struct crb_addr_pair *buf;
1098         unsigned long off;
1099         unsigned offset, n;
1100         struct qla_hw_data *ha = vha->hw;
1101
1102         struct crb_addr_pair {
1103                 long addr;
1104                 long data;
1105         };
1106
1107         /* Halt all the individual PEGs and other blocks of the ISP */
1108         qla82xx_rom_lock(ha);
1109
1110         /* disable all I2Q */
1111         qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x10, 0x0);
1112         qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x14, 0x0);
1113         qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x18, 0x0);
1114         qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x1c, 0x0);
1115         qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x20, 0x0);
1116         qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x24, 0x0);
1117
1118         /* disable all niu interrupts */
1119         qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x40, 0xff);
1120         /* disable xge rx/tx */
1121         qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x70000, 0x00);
1122         /* disable xg1 rx/tx */
1123         qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x80000, 0x00);
1124         /* disable sideband mac */
1125         qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x90000, 0x00);
1126         /* disable ap0 mac */
1127         qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0xa0000, 0x00);
1128         /* disable ap1 mac */
1129         qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0xb0000, 0x00);
1130
1131         /* halt sre */
1132         val = qla82xx_rd_32(ha, QLA82XX_CRB_SRE + 0x1000);
1133         qla82xx_wr_32(ha, QLA82XX_CRB_SRE + 0x1000, val & (~(0x1)));
1134
1135         /* halt epg */
1136         qla82xx_wr_32(ha, QLA82XX_CRB_EPG + 0x1300, 0x1);
1137
1138         /* halt timers */
1139         qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x0, 0x0);
1140         qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x8, 0x0);
1141         qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x10, 0x0);
1142         qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x18, 0x0);
1143         qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x100, 0x0);
1144         qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x200, 0x0);
1145
1146         /* halt pegs */
1147         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x3c, 1);
1148         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1 + 0x3c, 1);
1149         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2 + 0x3c, 1);
1150         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3 + 0x3c, 1);
1151         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_4 + 0x3c, 1);
1152         msleep(20);
1153
1154         /* big hammer */
1155         if (test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
1156                 /* don't reset CAM block on reset */
1157                 qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xfeffffff);
1158         else
1159                 qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xffffffff);
1160         qla82xx_rom_unlock(ha);
1161
1162         /* Read the signature value from the flash.
1163          * Offset 0: Contain signature (0xcafecafe)
1164          * Offset 4: Offset and number of addr/value pairs
1165          * that present in CRB initialize sequence
1166          */
1167         n = 0;
1168         if (qla82xx_rom_fast_read(ha, 0, &n) != 0 || n != 0xcafecafeUL ||
1169             qla82xx_rom_fast_read(ha, 4, &n) != 0) {
1170                 ql_log(ql_log_fatal, vha, 0x006e,
1171                     "Error Reading crb_init area: n: %08x.\n", n);
1172                 return -1;
1173         }
1174
1175         /* Offset in flash = lower 16 bits
1176          * Number of entries = upper 16 bits
1177          */
1178         offset = n & 0xffffU;
1179         n = (n >> 16) & 0xffffU;
1180
1181         /* number of addr/value pair should not exceed 1024 entries */
1182         if (n  >= 1024) {
1183                 ql_log(ql_log_fatal, vha, 0x0071,
1184                     "Card flash not initialized:n=0x%x.\n", n);
1185                 return -1;
1186         }
1187
1188         ql_log(ql_log_info, vha, 0x0072,
1189             "%d CRB init values found in ROM.\n", n);
1190
1191         buf = kmalloc_array(n, sizeof(struct crb_addr_pair), GFP_KERNEL);
1192         if (buf == NULL) {
1193                 ql_log(ql_log_fatal, vha, 0x010c,
1194                     "Unable to allocate memory.\n");
1195                 return -ENOMEM;
1196         }
1197
1198         for (i = 0; i < n; i++) {
1199                 if (qla82xx_rom_fast_read(ha, 8*i + 4*offset, &val) != 0 ||
1200                     qla82xx_rom_fast_read(ha, 8*i + 4*offset + 4, &addr) != 0) {
1201                         kfree(buf);
1202                         return -1;
1203                 }
1204
1205                 buf[i].addr = addr;
1206                 buf[i].data = val;
1207         }
1208
1209         for (i = 0; i < n; i++) {
1210                 /* Translate internal CRB initialization
1211                  * address to PCI bus address
1212                  */
1213                 off = qla82xx_decode_crb_addr((unsigned long)buf[i].addr) +
1214                     QLA82XX_PCI_CRBSPACE;
1215                 /* Not all CRB  addr/value pair to be written,
1216                  * some of them are skipped
1217                  */
1218
1219                 /* skipping cold reboot MAGIC */
1220                 if (off == QLA82XX_CAM_RAM(0x1fc))
1221                         continue;
1222
1223                 /* do not reset PCI */
1224                 if (off == (ROMUSB_GLB + 0xbc))
1225                         continue;
1226
1227                 /* skip core clock, so that firmware can increase the clock */
1228                 if (off == (ROMUSB_GLB + 0xc8))
1229                         continue;
1230
1231                 /* skip the function enable register */
1232                 if (off == QLA82XX_PCIE_REG(PCIE_SETUP_FUNCTION))
1233                         continue;
1234
1235                 if (off == QLA82XX_PCIE_REG(PCIE_SETUP_FUNCTION2))
1236                         continue;
1237
1238                 if ((off & 0x0ff00000) == QLA82XX_CRB_SMB)
1239                         continue;
1240
1241                 if ((off & 0x0ff00000) == QLA82XX_CRB_DDR_NET)
1242                         continue;
1243
1244                 if (off == ADDR_ERROR) {
1245                         ql_log(ql_log_fatal, vha, 0x0116,
1246                             "Unknown addr: 0x%08lx.\n", buf[i].addr);
1247                         continue;
1248                 }
1249
1250                 qla82xx_wr_32(ha, off, buf[i].data);
1251
1252                 /* ISP requires much bigger delay to settle down,
1253                  * else crb_window returns 0xffffffff
1254                  */
1255                 if (off == QLA82XX_ROMUSB_GLB_SW_RESET)
1256                         msleep(1000);
1257
1258                 /* ISP requires millisec delay between
1259                  * successive CRB register updation
1260                  */
1261                 msleep(1);
1262         }
1263
1264         kfree(buf);
1265
1266         /* Resetting the data and instruction cache */
1267         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0xec, 0x1e);
1268         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0x4c, 8);
1269         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_I+0x4c, 8);
1270
1271         /* Clear all protocol processing engines */
1272         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0x8, 0);
1273         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0xc, 0);
1274         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0x8, 0);
1275         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0xc, 0);
1276         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0x8, 0);
1277         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0xc, 0);
1278         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0x8, 0);
1279         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0xc, 0);
1280         return 0;
1281 }
1282
1283 static int
1284 qla82xx_pci_mem_write_2M(struct qla_hw_data *ha,
1285                 u64 off, void *data, int size)
1286 {
1287         int i, j, ret = 0, loop, sz[2], off0;
1288         int scale, shift_amount, startword;
1289         uint32_t temp;
1290         uint64_t off8, mem_crb, tmpw, word[2] = {0, 0};
1291
1292         /*
1293          * If not MN, go check for MS or invalid.
1294          */
1295         if (off >= QLA82XX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX)
1296                 mem_crb = QLA82XX_CRB_QDR_NET;
1297         else {
1298                 mem_crb = QLA82XX_CRB_DDR_NET;
1299                 if (qla82xx_pci_mem_bound_check(ha, off, size) == 0)
1300                         return qla82xx_pci_mem_write_direct(ha,
1301                             off, data, size);
1302         }
1303
1304         off0 = off & 0x7;
1305         sz[0] = (size < (8 - off0)) ? size : (8 - off0);
1306         sz[1] = size - sz[0];
1307
1308         off8 = off & 0xfffffff0;
1309         loop = (((off & 0xf) + size - 1) >> 4) + 1;
1310         shift_amount = 4;
1311         scale = 2;
1312         startword = (off & 0xf)/8;
1313
1314         for (i = 0; i < loop; i++) {
1315                 if (qla82xx_pci_mem_read_2M(ha, off8 +
1316                     (i << shift_amount), &word[i * scale], 8))
1317                         return -1;
1318         }
1319
1320         switch (size) {
1321         case 1:
1322                 tmpw = *((uint8_t *)data);
1323                 break;
1324         case 2:
1325                 tmpw = *((uint16_t *)data);
1326                 break;
1327         case 4:
1328                 tmpw = *((uint32_t *)data);
1329                 break;
1330         case 8:
1331         default:
1332                 tmpw = *((uint64_t *)data);
1333                 break;
1334         }
1335
1336         if (sz[0] == 8) {
1337                 word[startword] = tmpw;
1338         } else {
1339                 word[startword] &=
1340                         ~((~(~0ULL << (sz[0] * 8))) << (off0 * 8));
1341                 word[startword] |= tmpw << (off0 * 8);
1342         }
1343         if (sz[1] != 0) {
1344                 word[startword+1] &= ~(~0ULL << (sz[1] * 8));
1345                 word[startword+1] |= tmpw >> (sz[0] * 8);
1346         }
1347
1348         for (i = 0; i < loop; i++) {
1349                 temp = off8 + (i << shift_amount);
1350                 qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_LO, temp);
1351                 temp = 0;
1352                 qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_HI, temp);
1353                 temp = word[i * scale] & 0xffffffff;
1354                 qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_LO, temp);
1355                 temp = (word[i * scale] >> 32) & 0xffffffff;
1356                 qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_HI, temp);
1357                 temp = word[i*scale + 1] & 0xffffffff;
1358                 qla82xx_wr_32(ha, mem_crb +
1359                     MIU_TEST_AGT_WRDATA_UPPER_LO, temp);
1360                 temp = (word[i*scale + 1] >> 32) & 0xffffffff;
1361                 qla82xx_wr_32(ha, mem_crb +
1362                     MIU_TEST_AGT_WRDATA_UPPER_HI, temp);
1363
1364                 temp = MIU_TA_CTL_ENABLE | MIU_TA_CTL_WRITE;
1365                 qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1366                 temp = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE | MIU_TA_CTL_WRITE;
1367                 qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1368
1369                 for (j = 0; j < MAX_CTL_CHECK; j++) {
1370                         temp = qla82xx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL);
1371                         if ((temp & MIU_TA_CTL_BUSY) == 0)
1372                                 break;
1373                 }
1374
1375                 if (j >= MAX_CTL_CHECK) {
1376                         if (printk_ratelimit())
1377                                 dev_err(&ha->pdev->dev,
1378                                     "failed to write through agent.\n");
1379                         ret = -1;
1380                         break;
1381                 }
1382         }
1383
1384         return ret;
1385 }
1386
1387 static int
1388 qla82xx_fw_load_from_flash(struct qla_hw_data *ha)
1389 {
1390         int  i;
1391         long size = 0;
1392         long flashaddr = ha->flt_region_bootload << 2;
1393         long memaddr = BOOTLD_START;
1394         u64 data;
1395         u32 high, low;
1396
1397         size = (IMAGE_START - BOOTLD_START) / 8;
1398
1399         for (i = 0; i < size; i++) {
1400                 if ((qla82xx_rom_fast_read(ha, flashaddr, (int *)&low)) ||
1401                     (qla82xx_rom_fast_read(ha, flashaddr + 4, (int *)&high))) {
1402                         return -1;
1403                 }
1404                 data = ((u64)high << 32) | low ;
1405                 qla82xx_pci_mem_write_2M(ha, memaddr, &data, 8);
1406                 flashaddr += 8;
1407                 memaddr += 8;
1408
1409                 if (i % 0x1000 == 0)
1410                         msleep(1);
1411         }
1412         udelay(100);
1413         read_lock(&ha->hw_lock);
1414         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x18, 0x1020);
1415         qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0x80001e);
1416         read_unlock(&ha->hw_lock);
1417         return 0;
1418 }
1419
1420 int
1421 qla82xx_pci_mem_read_2M(struct qla_hw_data *ha,
1422                 u64 off, void *data, int size)
1423 {
1424         int i, j = 0, k, start, end, loop, sz[2], off0[2];
1425         int           shift_amount;
1426         uint32_t      temp;
1427         uint64_t      off8, val, mem_crb, word[2] = {0, 0};
1428
1429         /*
1430          * If not MN, go check for MS or invalid.
1431          */
1432
1433         if (off >= QLA82XX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX)
1434                 mem_crb = QLA82XX_CRB_QDR_NET;
1435         else {
1436                 mem_crb = QLA82XX_CRB_DDR_NET;
1437                 if (qla82xx_pci_mem_bound_check(ha, off, size) == 0)
1438                         return qla82xx_pci_mem_read_direct(ha,
1439                             off, data, size);
1440         }
1441
1442         off8 = off & 0xfffffff0;
1443         off0[0] = off & 0xf;
1444         sz[0] = (size < (16 - off0[0])) ? size : (16 - off0[0]);
1445         shift_amount = 4;
1446         loop = ((off0[0] + size - 1) >> shift_amount) + 1;
1447         off0[1] = 0;
1448         sz[1] = size - sz[0];
1449
1450         for (i = 0; i < loop; i++) {
1451                 temp = off8 + (i << shift_amount);
1452                 qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_LO, temp);
1453                 temp = 0;
1454                 qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_HI, temp);
1455                 temp = MIU_TA_CTL_ENABLE;
1456                 qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1457                 temp = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE;
1458                 qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1459
1460                 for (j = 0; j < MAX_CTL_CHECK; j++) {
1461                         temp = qla82xx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL);
1462                         if ((temp & MIU_TA_CTL_BUSY) == 0)
1463                                 break;
1464                 }
1465
1466                 if (j >= MAX_CTL_CHECK) {
1467                         if (printk_ratelimit())
1468                                 dev_err(&ha->pdev->dev,
1469                                     "failed to read through agent.\n");
1470                         break;
1471                 }
1472
1473                 start = off0[i] >> 2;
1474                 end   = (off0[i] + sz[i] - 1) >> 2;
1475                 for (k = start; k <= end; k++) {
1476                         temp = qla82xx_rd_32(ha,
1477                                         mem_crb + MIU_TEST_AGT_RDDATA(k));
1478                         word[i] |= ((uint64_t)temp << (32 * (k & 1)));
1479                 }
1480         }
1481
1482         if (j >= MAX_CTL_CHECK)
1483                 return -1;
1484
1485         if ((off0[0] & 7) == 0) {
1486                 val = word[0];
1487         } else {
1488                 val = ((word[0] >> (off0[0] * 8)) & (~(~0ULL << (sz[0] * 8)))) |
1489                         ((word[1] & (~(~0ULL << (sz[1] * 8)))) << (sz[0] * 8));
1490         }
1491
1492         switch (size) {
1493         case 1:
1494                 *(uint8_t  *)data = val;
1495                 break;
1496         case 2:
1497                 *(uint16_t *)data = val;
1498                 break;
1499         case 4:
1500                 *(uint32_t *)data = val;
1501                 break;
1502         case 8:
1503                 *(uint64_t *)data = val;
1504                 break;
1505         }
1506         return 0;
1507 }
1508
1509
1510 static struct qla82xx_uri_table_desc *
1511 qla82xx_get_table_desc(const u8 *unirom, int section)
1512 {
1513         uint32_t i;
1514         struct qla82xx_uri_table_desc *directory =
1515                 (struct qla82xx_uri_table_desc *)&unirom[0];
1516         uint32_t offset;
1517         uint32_t tab_type;
1518         uint32_t entries = le32_to_cpu(directory->num_entries);
1519
1520         for (i = 0; i < entries; i++) {
1521                 offset = le32_to_cpu(directory->findex) +
1522                     (i * le32_to_cpu(directory->entry_size));
1523                 tab_type = get_unaligned_le32((u32 *)&unirom[offset] + 8);
1524
1525                 if (tab_type == section)
1526                         return (struct qla82xx_uri_table_desc *)&unirom[offset];
1527         }
1528
1529         return NULL;
1530 }
1531
1532 static struct qla82xx_uri_data_desc *
1533 qla82xx_get_data_desc(struct qla_hw_data *ha,
1534         u32 section, u32 idx_offset)
1535 {
1536         const u8 *unirom = ha->hablob->fw->data;
1537         int idx = get_unaligned_le32((u32 *)&unirom[ha->file_prd_off] +
1538                                      idx_offset);
1539         struct qla82xx_uri_table_desc *tab_desc = NULL;
1540         uint32_t offset;
1541
1542         tab_desc = qla82xx_get_table_desc(unirom, section);
1543         if (!tab_desc)
1544                 return NULL;
1545
1546         offset = le32_to_cpu(tab_desc->findex) +
1547             (le32_to_cpu(tab_desc->entry_size) * idx);
1548
1549         return (struct qla82xx_uri_data_desc *)&unirom[offset];
1550 }
1551
1552 static u8 *
1553 qla82xx_get_bootld_offset(struct qla_hw_data *ha)
1554 {
1555         u32 offset = BOOTLD_START;
1556         struct qla82xx_uri_data_desc *uri_desc = NULL;
1557
1558         if (ha->fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
1559                 uri_desc = qla82xx_get_data_desc(ha,
1560                     QLA82XX_URI_DIR_SECT_BOOTLD, QLA82XX_URI_BOOTLD_IDX_OFF);
1561                 if (uri_desc)
1562                         offset = le32_to_cpu(uri_desc->findex);
1563         }
1564
1565         return (u8 *)&ha->hablob->fw->data[offset];
1566 }
1567
1568 static u32 qla82xx_get_fw_size(struct qla_hw_data *ha)
1569 {
1570         struct qla82xx_uri_data_desc *uri_desc = NULL;
1571
1572         if (ha->fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
1573                 uri_desc =  qla82xx_get_data_desc(ha, QLA82XX_URI_DIR_SECT_FW,
1574                     QLA82XX_URI_FIRMWARE_IDX_OFF);
1575                 if (uri_desc)
1576                         return le32_to_cpu(uri_desc->size);
1577         }
1578
1579         return get_unaligned_le32(&ha->hablob->fw->data[FW_SIZE_OFFSET]);
1580 }
1581
1582 static u8 *
1583 qla82xx_get_fw_offs(struct qla_hw_data *ha)
1584 {
1585         u32 offset = IMAGE_START;
1586         struct qla82xx_uri_data_desc *uri_desc = NULL;
1587
1588         if (ha->fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
1589                 uri_desc = qla82xx_get_data_desc(ha, QLA82XX_URI_DIR_SECT_FW,
1590                         QLA82XX_URI_FIRMWARE_IDX_OFF);
1591                 if (uri_desc)
1592                         offset = le32_to_cpu(uri_desc->findex);
1593         }
1594
1595         return (u8 *)&ha->hablob->fw->data[offset];
1596 }
1597
1598 /* PCI related functions */
1599 int qla82xx_pci_region_offset(struct pci_dev *pdev, int region)
1600 {
1601         unsigned long val = 0;
1602         u32 control;
1603
1604         switch (region) {
1605         case 0:
1606                 val = 0;
1607                 break;
1608         case 1:
1609                 pci_read_config_dword(pdev, QLA82XX_PCI_REG_MSIX_TBL, &control);
1610                 val = control + QLA82XX_MSIX_TBL_SPACE;
1611                 break;
1612         }
1613         return val;
1614 }
1615
1616
1617 int
1618 qla82xx_iospace_config(struct qla_hw_data *ha)
1619 {
1620         uint32_t len = 0;
1621
1622         if (pci_request_regions(ha->pdev, QLA2XXX_DRIVER_NAME)) {
1623                 ql_log_pci(ql_log_fatal, ha->pdev, 0x000c,
1624                     "Failed to reserver selected regions.\n");
1625                 goto iospace_error_exit;
1626         }
1627
1628         /* Use MMIO operations for all accesses. */
1629         if (!(pci_resource_flags(ha->pdev, 0) & IORESOURCE_MEM)) {
1630                 ql_log_pci(ql_log_fatal, ha->pdev, 0x000d,
1631                     "Region #0 not an MMIO resource, aborting.\n");
1632                 goto iospace_error_exit;
1633         }
1634
1635         len = pci_resource_len(ha->pdev, 0);
1636         ha->nx_pcibase = ioremap(pci_resource_start(ha->pdev, 0), len);
1637         if (!ha->nx_pcibase) {
1638                 ql_log_pci(ql_log_fatal, ha->pdev, 0x000e,
1639                     "Cannot remap pcibase MMIO, aborting.\n");
1640                 goto iospace_error_exit;
1641         }
1642
1643         /* Mapping of IO base pointer */
1644         if (IS_QLA8044(ha)) {
1645                 ha->iobase = ha->nx_pcibase;
1646         } else if (IS_QLA82XX(ha)) {
1647                 ha->iobase = ha->nx_pcibase + 0xbc000 + (ha->pdev->devfn << 11);
1648         }
1649
1650         if (!ql2xdbwr) {
1651                 ha->nxdb_wr_ptr = ioremap((pci_resource_start(ha->pdev, 4) +
1652                     (ha->pdev->devfn << 12)), 4);
1653                 if (!ha->nxdb_wr_ptr) {
1654                         ql_log_pci(ql_log_fatal, ha->pdev, 0x000f,
1655                             "Cannot remap MMIO, aborting.\n");
1656                         goto iospace_error_exit;
1657                 }
1658
1659                 /* Mapping of IO base pointer,
1660                  * door bell read and write pointer
1661                  */
1662                 ha->nxdb_rd_ptr = ha->nx_pcibase + (512 * 1024) +
1663                     (ha->pdev->devfn * 8);
1664         } else {
1665                 ha->nxdb_wr_ptr = (void __iomem *)(ha->pdev->devfn == 6 ?
1666                         QLA82XX_CAMRAM_DB1 :
1667                         QLA82XX_CAMRAM_DB2);
1668         }
1669
1670         ha->max_req_queues = ha->max_rsp_queues = 1;
1671         ha->msix_count = ha->max_rsp_queues + 1;
1672         ql_dbg_pci(ql_dbg_multiq, ha->pdev, 0xc006,
1673             "nx_pci_base=%p iobase=%p "
1674             "max_req_queues=%d msix_count=%d.\n",
1675             ha->nx_pcibase, ha->iobase,
1676             ha->max_req_queues, ha->msix_count);
1677         ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0010,
1678             "nx_pci_base=%p iobase=%p "
1679             "max_req_queues=%d msix_count=%d.\n",
1680             ha->nx_pcibase, ha->iobase,
1681             ha->max_req_queues, ha->msix_count);
1682         return 0;
1683
1684 iospace_error_exit:
1685         return -ENOMEM;
1686 }
1687
1688 /* GS related functions */
1689
1690 /* Initialization related functions */
1691
1692 /**
1693  * qla82xx_pci_config() - Setup ISP82xx PCI configuration registers.
1694  * @vha: HA context
1695  *
1696  * Returns 0 on success.
1697 */
1698 int
1699 qla82xx_pci_config(scsi_qla_host_t *vha)
1700 {
1701         struct qla_hw_data *ha = vha->hw;
1702         int ret;
1703
1704         pci_set_master(ha->pdev);
1705         ret = pci_set_mwi(ha->pdev);
1706         ha->chip_revision = ha->pdev->revision;
1707         ql_dbg(ql_dbg_init, vha, 0x0043,
1708             "Chip revision:%d; pci_set_mwi() returned %d.\n",
1709             ha->chip_revision, ret);
1710         return 0;
1711 }
1712
1713 /**
1714  * qla82xx_reset_chip() - Setup ISP82xx PCI configuration registers.
1715  * @vha: HA context
1716  *
1717  * Returns 0 on success.
1718  */
1719 int
1720 qla82xx_reset_chip(scsi_qla_host_t *vha)
1721 {
1722         struct qla_hw_data *ha = vha->hw;
1723
1724         ha->isp_ops->disable_intrs(ha);
1725
1726         return QLA_SUCCESS;
1727 }
1728
1729 void qla82xx_config_rings(struct scsi_qla_host *vha)
1730 {
1731         struct qla_hw_data *ha = vha->hw;
1732         struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
1733         struct init_cb_81xx *icb;
1734         struct req_que *req = ha->req_q_map[0];
1735         struct rsp_que *rsp = ha->rsp_q_map[0];
1736
1737         /* Setup ring parameters in initialization control block. */
1738         icb = (struct init_cb_81xx *)ha->init_cb;
1739         icb->request_q_outpointer = cpu_to_le16(0);
1740         icb->response_q_inpointer = cpu_to_le16(0);
1741         icb->request_q_length = cpu_to_le16(req->length);
1742         icb->response_q_length = cpu_to_le16(rsp->length);
1743         put_unaligned_le64(req->dma, &icb->request_q_address);
1744         put_unaligned_le64(rsp->dma, &icb->response_q_address);
1745
1746         wrt_reg_dword(&reg->req_q_out[0], 0);
1747         wrt_reg_dword(&reg->rsp_q_in[0], 0);
1748         wrt_reg_dword(&reg->rsp_q_out[0], 0);
1749 }
1750
1751 static int
1752 qla82xx_fw_load_from_blob(struct qla_hw_data *ha)
1753 {
1754         u64 *ptr64;
1755         u32 i, flashaddr, size;
1756         __le64 data;
1757
1758         size = (IMAGE_START - BOOTLD_START) / 8;
1759
1760         ptr64 = (u64 *)qla82xx_get_bootld_offset(ha);
1761         flashaddr = BOOTLD_START;
1762
1763         for (i = 0; i < size; i++) {
1764                 data = cpu_to_le64(ptr64[i]);
1765                 if (qla82xx_pci_mem_write_2M(ha, flashaddr, &data, 8))
1766                         return -EIO;
1767                 flashaddr += 8;
1768         }
1769
1770         flashaddr = FLASH_ADDR_START;
1771         size = qla82xx_get_fw_size(ha) / 8;
1772         ptr64 = (u64 *)qla82xx_get_fw_offs(ha);
1773
1774         for (i = 0; i < size; i++) {
1775                 data = cpu_to_le64(ptr64[i]);
1776
1777                 if (qla82xx_pci_mem_write_2M(ha, flashaddr, &data, 8))
1778                         return -EIO;
1779                 flashaddr += 8;
1780         }
1781         udelay(100);
1782
1783         /* Write a magic value to CAMRAM register
1784          * at a specified offset to indicate
1785          * that all data is written and
1786          * ready for firmware to initialize.
1787          */
1788         qla82xx_wr_32(ha, QLA82XX_CAM_RAM(0x1fc), QLA82XX_BDINFO_MAGIC);
1789
1790         read_lock(&ha->hw_lock);
1791         qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x18, 0x1020);
1792         qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0x80001e);
1793         read_unlock(&ha->hw_lock);
1794         return 0;
1795 }
1796
1797 static int
1798 qla82xx_set_product_offset(struct qla_hw_data *ha)
1799 {
1800         struct qla82xx_uri_table_desc *ptab_desc = NULL;
1801         const uint8_t *unirom = ha->hablob->fw->data;
1802         uint32_t i;
1803         uint32_t entries;
1804         uint32_t flags, file_chiprev, offset;
1805         uint8_t chiprev = ha->chip_revision;
1806         /* Hardcoding mn_present flag for P3P */
1807         int mn_present = 0;
1808         uint32_t flagbit;
1809
1810         ptab_desc = qla82xx_get_table_desc(unirom,
1811                  QLA82XX_URI_DIR_SECT_PRODUCT_TBL);
1812         if (!ptab_desc)
1813                 return -1;
1814
1815         entries = le32_to_cpu(ptab_desc->num_entries);
1816
1817         for (i = 0; i < entries; i++) {
1818                 offset = le32_to_cpu(ptab_desc->findex) +
1819                         (i * le32_to_cpu(ptab_desc->entry_size));
1820                 flags = le32_to_cpu(*((__le32 *)&unirom[offset] +
1821                         QLA82XX_URI_FLAGS_OFF));
1822                 file_chiprev = le32_to_cpu(*((__le32 *)&unirom[offset] +
1823                         QLA82XX_URI_CHIP_REV_OFF));
1824
1825                 flagbit = mn_present ? 1 : 2;
1826
1827                 if ((chiprev == file_chiprev) && ((1ULL << flagbit) & flags)) {
1828                         ha->file_prd_off = offset;
1829                         return 0;
1830                 }
1831         }
1832         return -1;
1833 }
1834
1835 static int
1836 qla82xx_validate_firmware_blob(scsi_qla_host_t *vha, uint8_t fw_type)
1837 {
1838         uint32_t val;
1839         uint32_t min_size;
1840         struct qla_hw_data *ha = vha->hw;
1841         const struct firmware *fw = ha->hablob->fw;
1842
1843         ha->fw_type = fw_type;
1844
1845         if (fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
1846                 if (qla82xx_set_product_offset(ha))
1847                         return -EINVAL;
1848
1849                 min_size = QLA82XX_URI_FW_MIN_SIZE;
1850         } else {
1851                 val = get_unaligned_le32(&fw->data[QLA82XX_FW_MAGIC_OFFSET]);
1852                 if (val != QLA82XX_BDINFO_MAGIC)
1853                         return -EINVAL;
1854
1855                 min_size = QLA82XX_FW_MIN_SIZE;
1856         }
1857
1858         if (fw->size < min_size)
1859                 return -EINVAL;
1860         return 0;
1861 }
1862
1863 static int
1864 qla82xx_check_cmdpeg_state(struct qla_hw_data *ha)
1865 {
1866         u32 val = 0;
1867         int retries = 60;
1868         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1869
1870         do {
1871                 read_lock(&ha->hw_lock);
1872                 val = qla82xx_rd_32(ha, CRB_CMDPEG_STATE);
1873                 read_unlock(&ha->hw_lock);
1874
1875                 switch (val) {
1876                 case PHAN_INITIALIZE_COMPLETE:
1877                 case PHAN_INITIALIZE_ACK:
1878                         return QLA_SUCCESS;
1879                 case PHAN_INITIALIZE_FAILED:
1880                         break;
1881                 default:
1882                         break;
1883                 }
1884                 ql_log(ql_log_info, vha, 0x00a8,
1885                     "CRB_CMDPEG_STATE: 0x%x and retries:0x%x.\n",
1886                     val, retries);
1887
1888                 msleep(500);
1889
1890         } while (--retries);
1891
1892         ql_log(ql_log_fatal, vha, 0x00a9,
1893             "Cmd Peg initialization failed: 0x%x.\n", val);
1894
1895         val = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_PEGTUNE_DONE);
1896         read_lock(&ha->hw_lock);
1897         qla82xx_wr_32(ha, CRB_CMDPEG_STATE, PHAN_INITIALIZE_FAILED);
1898         read_unlock(&ha->hw_lock);
1899         return QLA_FUNCTION_FAILED;
1900 }
1901
1902 static int
1903 qla82xx_check_rcvpeg_state(struct qla_hw_data *ha)
1904 {
1905         u32 val = 0;
1906         int retries = 60;
1907         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1908
1909         do {
1910                 read_lock(&ha->hw_lock);
1911                 val = qla82xx_rd_32(ha, CRB_RCVPEG_STATE);
1912                 read_unlock(&ha->hw_lock);
1913
1914                 switch (val) {
1915                 case PHAN_INITIALIZE_COMPLETE:
1916                 case PHAN_INITIALIZE_ACK:
1917                         return QLA_SUCCESS;
1918                 case PHAN_INITIALIZE_FAILED:
1919                         break;
1920                 default:
1921                         break;
1922                 }
1923                 ql_log(ql_log_info, vha, 0x00ab,
1924                     "CRB_RCVPEG_STATE: 0x%x and retries: 0x%x.\n",
1925                     val, retries);
1926
1927                 msleep(500);
1928
1929         } while (--retries);
1930
1931         ql_log(ql_log_fatal, vha, 0x00ac,
1932             "Rcv Peg initialization failed: 0x%x.\n", val);
1933         read_lock(&ha->hw_lock);
1934         qla82xx_wr_32(ha, CRB_RCVPEG_STATE, PHAN_INITIALIZE_FAILED);
1935         read_unlock(&ha->hw_lock);
1936         return QLA_FUNCTION_FAILED;
1937 }
1938
1939 /* ISR related functions */
1940 static struct qla82xx_legacy_intr_set legacy_intr[] =
1941         QLA82XX_LEGACY_INTR_CONFIG;
1942
1943 /*
1944  * qla82xx_mbx_completion() - Process mailbox command completions.
1945  * @ha: SCSI driver HA context
1946  * @mb0: Mailbox0 register
1947  */
1948 void
1949 qla82xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
1950 {
1951         uint16_t        cnt;
1952         __le16 __iomem *wptr;
1953         struct qla_hw_data *ha = vha->hw;
1954         struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
1955
1956         wptr = &reg->mailbox_out[1];
1957
1958         /* Load return mailbox registers. */
1959         ha->flags.mbox_int = 1;
1960         ha->mailbox_out[0] = mb0;
1961
1962         for (cnt = 1; cnt < ha->mbx_count; cnt++) {
1963                 ha->mailbox_out[cnt] = rd_reg_word(wptr);
1964                 wptr++;
1965         }
1966
1967         if (!ha->mcp)
1968                 ql_dbg(ql_dbg_async, vha, 0x5053,
1969                     "MBX pointer ERROR.\n");
1970 }
1971
1972 /**
1973  * qla82xx_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
1974  * @irq: interrupt number
1975  * @dev_id: SCSI driver HA context
1976  *
1977  * Called by system whenever the host adapter generates an interrupt.
1978  *
1979  * Returns handled flag.
1980  */
1981 irqreturn_t
1982 qla82xx_intr_handler(int irq, void *dev_id)
1983 {
1984         scsi_qla_host_t *vha;
1985         struct qla_hw_data *ha;
1986         struct rsp_que *rsp;
1987         struct device_reg_82xx __iomem *reg;
1988         int status = 0, status1 = 0;
1989         unsigned long   flags;
1990         unsigned long   iter;
1991         uint32_t        stat = 0;
1992         uint16_t        mb[8];
1993
1994         rsp = (struct rsp_que *) dev_id;
1995         if (!rsp) {
1996                 ql_log(ql_log_info, NULL, 0xb053,
1997                     "%s: NULL response queue pointer.\n", __func__);
1998                 return IRQ_NONE;
1999         }
2000         ha = rsp->hw;
2001
2002         if (!ha->flags.msi_enabled) {
2003                 status = qla82xx_rd_32(ha, ISR_INT_VECTOR);
2004                 if (!(status & ha->nx_legacy_intr.int_vec_bit))
2005                         return IRQ_NONE;
2006
2007                 status1 = qla82xx_rd_32(ha, ISR_INT_STATE_REG);
2008                 if (!ISR_IS_LEGACY_INTR_TRIGGERED(status1))
2009                         return IRQ_NONE;
2010         }
2011
2012         /* clear the interrupt */
2013         qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_status_reg, 0xffffffff);
2014
2015         /* read twice to ensure write is flushed */
2016         qla82xx_rd_32(ha, ISR_INT_VECTOR);
2017         qla82xx_rd_32(ha, ISR_INT_VECTOR);
2018
2019         reg = &ha->iobase->isp82;
2020
2021         spin_lock_irqsave(&ha->hardware_lock, flags);
2022         vha = pci_get_drvdata(ha->pdev);
2023         for (iter = 1; iter--; ) {
2024
2025                 if (rd_reg_dword(&reg->host_int)) {
2026                         stat = rd_reg_dword(&reg->host_status);
2027
2028                         switch (stat & 0xff) {
2029                         case 0x1:
2030                         case 0x2:
2031                         case 0x10:
2032                         case 0x11:
2033                                 qla82xx_mbx_completion(vha, MSW(stat));
2034                                 status |= MBX_INTERRUPT;
2035                                 break;
2036                         case 0x12:
2037                                 mb[0] = MSW(stat);
2038                                 mb[1] = rd_reg_word(&reg->mailbox_out[1]);
2039                                 mb[2] = rd_reg_word(&reg->mailbox_out[2]);
2040                                 mb[3] = rd_reg_word(&reg->mailbox_out[3]);
2041                                 qla2x00_async_event(vha, rsp, mb);
2042                                 break;
2043                         case 0x13:
2044                                 qla24xx_process_response_queue(vha, rsp);
2045                                 break;
2046                         default:
2047                                 ql_dbg(ql_dbg_async, vha, 0x5054,
2048                                     "Unrecognized interrupt type (%d).\n",
2049                                     stat & 0xff);
2050                                 break;
2051                         }
2052                 }
2053                 wrt_reg_dword(&reg->host_int, 0);
2054         }
2055
2056         qla2x00_handle_mbx_completion(ha, status);
2057         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2058
2059         if (!ha->flags.msi_enabled)
2060                 qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0xfbff);
2061
2062         return IRQ_HANDLED;
2063 }
2064
2065 irqreturn_t
2066 qla82xx_msix_default(int irq, void *dev_id)
2067 {
2068         scsi_qla_host_t *vha;
2069         struct qla_hw_data *ha;
2070         struct rsp_que *rsp;
2071         struct device_reg_82xx __iomem *reg;
2072         int status = 0;
2073         unsigned long flags;
2074         uint32_t stat = 0;
2075         uint32_t host_int = 0;
2076         uint16_t mb[8];
2077
2078         rsp = (struct rsp_que *) dev_id;
2079         if (!rsp) {
2080                 printk(KERN_INFO
2081                         "%s(): NULL response queue pointer.\n", __func__);
2082                 return IRQ_NONE;
2083         }
2084         ha = rsp->hw;
2085
2086         reg = &ha->iobase->isp82;
2087
2088         spin_lock_irqsave(&ha->hardware_lock, flags);
2089         vha = pci_get_drvdata(ha->pdev);
2090         do {
2091                 host_int = rd_reg_dword(&reg->host_int);
2092                 if (qla2x00_check_reg32_for_disconnect(vha, host_int))
2093                         break;
2094                 if (host_int) {
2095                         stat = rd_reg_dword(&reg->host_status);
2096
2097                         switch (stat & 0xff) {
2098                         case 0x1:
2099                         case 0x2:
2100                         case 0x10:
2101                         case 0x11:
2102                                 qla82xx_mbx_completion(vha, MSW(stat));
2103                                 status |= MBX_INTERRUPT;
2104                                 break;
2105                         case 0x12:
2106                                 mb[0] = MSW(stat);
2107                                 mb[1] = rd_reg_word(&reg->mailbox_out[1]);
2108                                 mb[2] = rd_reg_word(&reg->mailbox_out[2]);
2109                                 mb[3] = rd_reg_word(&reg->mailbox_out[3]);
2110                                 qla2x00_async_event(vha, rsp, mb);
2111                                 break;
2112                         case 0x13:
2113                                 qla24xx_process_response_queue(vha, rsp);
2114                                 break;
2115                         default:
2116                                 ql_dbg(ql_dbg_async, vha, 0x5041,
2117                                     "Unrecognized interrupt type (%d).\n",
2118                                     stat & 0xff);
2119                                 break;
2120                         }
2121                 }
2122                 wrt_reg_dword(&reg->host_int, 0);
2123         } while (0);
2124
2125         qla2x00_handle_mbx_completion(ha, status);
2126         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2127
2128         return IRQ_HANDLED;
2129 }
2130
2131 irqreturn_t
2132 qla82xx_msix_rsp_q(int irq, void *dev_id)
2133 {
2134         scsi_qla_host_t *vha;
2135         struct qla_hw_data *ha;
2136         struct rsp_que *rsp;
2137         struct device_reg_82xx __iomem *reg;
2138         unsigned long flags;
2139         uint32_t host_int = 0;
2140
2141         rsp = (struct rsp_que *) dev_id;
2142         if (!rsp) {
2143                 printk(KERN_INFO
2144                         "%s(): NULL response queue pointer.\n", __func__);
2145                 return IRQ_NONE;
2146         }
2147
2148         ha = rsp->hw;
2149         reg = &ha->iobase->isp82;
2150         spin_lock_irqsave(&ha->hardware_lock, flags);
2151         vha = pci_get_drvdata(ha->pdev);
2152         host_int = rd_reg_dword(&reg->host_int);
2153         if (qla2x00_check_reg32_for_disconnect(vha, host_int))
2154                 goto out;
2155         qla24xx_process_response_queue(vha, rsp);
2156         wrt_reg_dword(&reg->host_int, 0);
2157 out:
2158         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2159         return IRQ_HANDLED;
2160 }
2161
2162 void
2163 qla82xx_poll(int irq, void *dev_id)
2164 {
2165         scsi_qla_host_t *vha;
2166         struct qla_hw_data *ha;
2167         struct rsp_que *rsp;
2168         struct device_reg_82xx __iomem *reg;
2169         int status = 0;
2170         uint32_t stat;
2171         uint32_t host_int = 0;
2172         uint16_t mb[8];
2173         unsigned long flags;
2174
2175         rsp = (struct rsp_que *) dev_id;
2176         if (!rsp) {
2177                 printk(KERN_INFO
2178                         "%s(): NULL response queue pointer.\n", __func__);
2179                 return;
2180         }
2181         ha = rsp->hw;
2182
2183         reg = &ha->iobase->isp82;
2184         spin_lock_irqsave(&ha->hardware_lock, flags);
2185         vha = pci_get_drvdata(ha->pdev);
2186
2187         host_int = rd_reg_dword(&reg->host_int);
2188         if (qla2x00_check_reg32_for_disconnect(vha, host_int))
2189                 goto out;
2190         if (host_int) {
2191                 stat = rd_reg_dword(&reg->host_status);
2192                 switch (stat & 0xff) {
2193                 case 0x1:
2194                 case 0x2:
2195                 case 0x10:
2196                 case 0x11:
2197                         qla82xx_mbx_completion(vha, MSW(stat));
2198                         status |= MBX_INTERRUPT;
2199                         break;
2200                 case 0x12:
2201                         mb[0] = MSW(stat);
2202                         mb[1] = rd_reg_word(&reg->mailbox_out[1]);
2203                         mb[2] = rd_reg_word(&reg->mailbox_out[2]);
2204                         mb[3] = rd_reg_word(&reg->mailbox_out[3]);
2205                         qla2x00_async_event(vha, rsp, mb);
2206                         break;
2207                 case 0x13:
2208                         qla24xx_process_response_queue(vha, rsp);
2209                         break;
2210                 default:
2211                         ql_dbg(ql_dbg_p3p, vha, 0xb013,
2212                             "Unrecognized interrupt type (%d).\n",
2213                             stat * 0xff);
2214                         break;
2215                 }
2216                 wrt_reg_dword(&reg->host_int, 0);
2217         }
2218 out:
2219         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2220 }
2221
2222 void
2223 qla82xx_enable_intrs(struct qla_hw_data *ha)
2224 {
2225         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2226
2227         qla82xx_mbx_intr_enable(vha);
2228         spin_lock_irq(&ha->hardware_lock);
2229         if (IS_QLA8044(ha))
2230                 qla8044_wr_reg(ha, LEG_INTR_MASK_OFFSET, 0);
2231         else
2232                 qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0xfbff);
2233         spin_unlock_irq(&ha->hardware_lock);
2234         ha->interrupts_on = 1;
2235 }
2236
2237 void
2238 qla82xx_disable_intrs(struct qla_hw_data *ha)
2239 {
2240         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2241
2242         if (ha->interrupts_on)
2243                 qla82xx_mbx_intr_disable(vha);
2244
2245         spin_lock_irq(&ha->hardware_lock);
2246         if (IS_QLA8044(ha))
2247                 qla8044_wr_reg(ha, LEG_INTR_MASK_OFFSET, 1);
2248         else
2249                 qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0x0400);
2250         spin_unlock_irq(&ha->hardware_lock);
2251         ha->interrupts_on = 0;
2252 }
2253
2254 void qla82xx_init_flags(struct qla_hw_data *ha)
2255 {
2256         struct qla82xx_legacy_intr_set *nx_legacy_intr;
2257
2258         /* ISP 8021 initializations */
2259         rwlock_init(&ha->hw_lock);
2260         ha->qdr_sn_window = -1;
2261         ha->ddr_mn_window = -1;
2262         ha->curr_window = 255;
2263         ha->portnum = PCI_FUNC(ha->pdev->devfn);
2264         nx_legacy_intr = &legacy_intr[ha->portnum];
2265         ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit;
2266         ha->nx_legacy_intr.tgt_status_reg = nx_legacy_intr->tgt_status_reg;
2267         ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg;
2268         ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg;
2269 }
2270
2271 static inline void
2272 qla82xx_set_idc_version(scsi_qla_host_t *vha)
2273 {
2274         int idc_ver;
2275         uint32_t drv_active;
2276         struct qla_hw_data *ha = vha->hw;
2277
2278         drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2279         if (drv_active == (QLA82XX_DRV_ACTIVE << (ha->portnum * 4))) {
2280                 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION,
2281                     QLA82XX_IDC_VERSION);
2282                 ql_log(ql_log_info, vha, 0xb082,
2283                     "IDC version updated to %d\n", QLA82XX_IDC_VERSION);
2284         } else {
2285                 idc_ver = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_IDC_VERSION);
2286                 if (idc_ver != QLA82XX_IDC_VERSION)
2287                         ql_log(ql_log_info, vha, 0xb083,
2288                             "qla2xxx driver IDC version %d is not compatible "
2289                             "with IDC version %d of the other drivers\n",
2290                             QLA82XX_IDC_VERSION, idc_ver);
2291         }
2292 }
2293
2294 inline void
2295 qla82xx_set_drv_active(scsi_qla_host_t *vha)
2296 {
2297         uint32_t drv_active;
2298         struct qla_hw_data *ha = vha->hw;
2299
2300         drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2301
2302         /* If reset value is all FF's, initialize DRV_ACTIVE */
2303         if (drv_active == 0xffffffff) {
2304                 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE,
2305                         QLA82XX_DRV_NOT_ACTIVE);
2306                 drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2307         }
2308         drv_active |= (QLA82XX_DRV_ACTIVE << (ha->portnum * 4));
2309         qla82xx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE, drv_active);
2310 }
2311
2312 inline void
2313 qla82xx_clear_drv_active(struct qla_hw_data *ha)
2314 {
2315         uint32_t drv_active;
2316
2317         drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2318         drv_active &= ~(QLA82XX_DRV_ACTIVE << (ha->portnum * 4));
2319         qla82xx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE, drv_active);
2320 }
2321
2322 static inline int
2323 qla82xx_need_reset(struct qla_hw_data *ha)
2324 {
2325         uint32_t drv_state;
2326         int rval;
2327
2328         if (ha->flags.nic_core_reset_owner)
2329                 return 1;
2330         else {
2331                 drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2332                 rval = drv_state & (QLA82XX_DRVST_RST_RDY << (ha->portnum * 4));
2333                 return rval;
2334         }
2335 }
2336
2337 static inline void
2338 qla82xx_set_rst_ready(struct qla_hw_data *ha)
2339 {
2340         uint32_t drv_state;
2341         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2342
2343         drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2344
2345         /* If reset value is all FF's, initialize DRV_STATE */
2346         if (drv_state == 0xffffffff) {
2347                 qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, QLA82XX_DRVST_NOT_RDY);
2348                 drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2349         }
2350         drv_state |= (QLA82XX_DRVST_RST_RDY << (ha->portnum * 4));
2351         ql_dbg(ql_dbg_init, vha, 0x00bb,
2352             "drv_state = 0x%08x.\n", drv_state);
2353         qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, drv_state);
2354 }
2355
2356 static inline void
2357 qla82xx_clear_rst_ready(struct qla_hw_data *ha)
2358 {
2359         uint32_t drv_state;
2360
2361         drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2362         drv_state &= ~(QLA82XX_DRVST_RST_RDY << (ha->portnum * 4));
2363         qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, drv_state);
2364 }
2365
2366 static inline void
2367 qla82xx_set_qsnt_ready(struct qla_hw_data *ha)
2368 {
2369         uint32_t qsnt_state;
2370
2371         qsnt_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2372         qsnt_state |= (QLA82XX_DRVST_QSNT_RDY << (ha->portnum * 4));
2373         qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, qsnt_state);
2374 }
2375
2376 void
2377 qla82xx_clear_qsnt_ready(scsi_qla_host_t *vha)
2378 {
2379         struct qla_hw_data *ha = vha->hw;
2380         uint32_t qsnt_state;
2381
2382         qsnt_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2383         qsnt_state &= ~(QLA82XX_DRVST_QSNT_RDY << (ha->portnum * 4));
2384         qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, qsnt_state);
2385 }
2386
2387 static int
2388 qla82xx_load_fw(scsi_qla_host_t *vha)
2389 {
2390         int rst;
2391         struct fw_blob *blob;
2392         struct qla_hw_data *ha = vha->hw;
2393
2394         if (qla82xx_pinit_from_rom(vha) != QLA_SUCCESS) {
2395                 ql_log(ql_log_fatal, vha, 0x009f,
2396                     "Error during CRB initialization.\n");
2397                 return QLA_FUNCTION_FAILED;
2398         }
2399         udelay(500);
2400
2401         /* Bring QM and CAMRAM out of reset */
2402         rst = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET);
2403         rst &= ~((1 << 28) | (1 << 24));
2404         qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, rst);
2405
2406         /*
2407          * FW Load priority:
2408          * 1) Operational firmware residing in flash.
2409          * 2) Firmware via request-firmware interface (.bin file).
2410          */
2411         if (ql2xfwloadbin == 2)
2412                 goto try_blob_fw;
2413
2414         ql_log(ql_log_info, vha, 0x00a0,
2415             "Attempting to load firmware from flash.\n");
2416
2417         if (qla82xx_fw_load_from_flash(ha) == QLA_SUCCESS) {
2418                 ql_log(ql_log_info, vha, 0x00a1,
2419                     "Firmware loaded successfully from flash.\n");
2420                 return QLA_SUCCESS;
2421         } else {
2422                 ql_log(ql_log_warn, vha, 0x0108,
2423                     "Firmware load from flash failed.\n");
2424         }
2425
2426 try_blob_fw:
2427         ql_log(ql_log_info, vha, 0x00a2,
2428             "Attempting to load firmware from blob.\n");
2429
2430         /* Load firmware blob. */
2431         blob = ha->hablob = qla2x00_request_firmware(vha);
2432         if (!blob) {
2433                 ql_log(ql_log_fatal, vha, 0x00a3,
2434                     "Firmware image not present.\n");
2435                 goto fw_load_failed;
2436         }
2437
2438         /* Validating firmware blob */
2439         if (qla82xx_validate_firmware_blob(vha,
2440                 QLA82XX_FLASH_ROMIMAGE)) {
2441                 /* Fallback to URI format */
2442                 if (qla82xx_validate_firmware_blob(vha,
2443                         QLA82XX_UNIFIED_ROMIMAGE)) {
2444                         ql_log(ql_log_fatal, vha, 0x00a4,
2445                             "No valid firmware image found.\n");
2446                         return QLA_FUNCTION_FAILED;
2447                 }
2448         }
2449
2450         if (qla82xx_fw_load_from_blob(ha) == QLA_SUCCESS) {
2451                 ql_log(ql_log_info, vha, 0x00a5,
2452                     "Firmware loaded successfully from binary blob.\n");
2453                 return QLA_SUCCESS;
2454         }
2455
2456         ql_log(ql_log_fatal, vha, 0x00a6,
2457                "Firmware load failed for binary blob.\n");
2458         blob->fw = NULL;
2459         blob = NULL;
2460
2461 fw_load_failed:
2462         return QLA_FUNCTION_FAILED;
2463 }
2464
2465 int
2466 qla82xx_start_firmware(scsi_qla_host_t *vha)
2467 {
2468         uint16_t      lnk;
2469         struct qla_hw_data *ha = vha->hw;
2470
2471         /* scrub dma mask expansion register */
2472         qla82xx_wr_32(ha, CRB_DMA_SHIFT, QLA82XX_DMA_SHIFT_VALUE);
2473
2474         /* Put both the PEG CMD and RCV PEG to default state
2475          * of 0 before resetting the hardware
2476          */
2477         qla82xx_wr_32(ha, CRB_CMDPEG_STATE, 0);
2478         qla82xx_wr_32(ha, CRB_RCVPEG_STATE, 0);
2479
2480         /* Overwrite stale initialization register values */
2481         qla82xx_wr_32(ha, QLA82XX_PEG_HALT_STATUS1, 0);
2482         qla82xx_wr_32(ha, QLA82XX_PEG_HALT_STATUS2, 0);
2483
2484         if (qla82xx_load_fw(vha) != QLA_SUCCESS) {
2485                 ql_log(ql_log_fatal, vha, 0x00a7,
2486                     "Error trying to start fw.\n");
2487                 return QLA_FUNCTION_FAILED;
2488         }
2489
2490         /* Handshake with the card before we register the devices. */
2491         if (qla82xx_check_cmdpeg_state(ha) != QLA_SUCCESS) {
2492                 ql_log(ql_log_fatal, vha, 0x00aa,
2493                     "Error during card handshake.\n");
2494                 return QLA_FUNCTION_FAILED;
2495         }
2496
2497         /* Negotiated Link width */
2498         pcie_capability_read_word(ha->pdev, PCI_EXP_LNKSTA, &lnk);
2499         ha->link_width = (lnk >> 4) & 0x3f;
2500
2501         /* Synchronize with Receive peg */
2502         return qla82xx_check_rcvpeg_state(ha);
2503 }
2504
2505 static __le32 *
2506 qla82xx_read_flash_data(scsi_qla_host_t *vha, __le32 *dwptr, uint32_t faddr,
2507         uint32_t length)
2508 {
2509         uint32_t i;
2510         uint32_t val;
2511         struct qla_hw_data *ha = vha->hw;
2512
2513         /* Dword reads to flash. */
2514         for (i = 0; i < length/4; i++, faddr += 4) {
2515                 if (qla82xx_rom_fast_read(ha, faddr, &val)) {
2516                         ql_log(ql_log_warn, vha, 0x0106,
2517                             "Do ROM fast read failed.\n");
2518                         goto done_read;
2519                 }
2520                 dwptr[i] = cpu_to_le32(val);
2521         }
2522 done_read:
2523         return dwptr;
2524 }
2525
2526 static int
2527 qla82xx_unprotect_flash(struct qla_hw_data *ha)
2528 {
2529         int ret;
2530         uint32_t val;
2531         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2532
2533         ret = ql82xx_rom_lock_d(ha);
2534         if (ret < 0) {
2535                 ql_log(ql_log_warn, vha, 0xb014,
2536                     "ROM Lock failed.\n");
2537                 return ret;
2538         }
2539
2540         ret = qla82xx_read_status_reg(ha, &val);
2541         if (ret < 0)
2542                 goto done_unprotect;
2543
2544         val &= ~(BLOCK_PROTECT_BITS << 2);
2545         ret = qla82xx_write_status_reg(ha, val);
2546         if (ret < 0) {
2547                 val |= (BLOCK_PROTECT_BITS << 2);
2548                 qla82xx_write_status_reg(ha, val);
2549         }
2550
2551         if (qla82xx_write_disable_flash(ha) != 0)
2552                 ql_log(ql_log_warn, vha, 0xb015,
2553                     "Write disable failed.\n");
2554
2555 done_unprotect:
2556         qla82xx_rom_unlock(ha);
2557         return ret;
2558 }
2559
2560 static int
2561 qla82xx_protect_flash(struct qla_hw_data *ha)
2562 {
2563         int ret;
2564         uint32_t val;
2565         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2566
2567         ret = ql82xx_rom_lock_d(ha);
2568         if (ret < 0) {
2569                 ql_log(ql_log_warn, vha, 0xb016,
2570                     "ROM Lock failed.\n");
2571                 return ret;
2572         }
2573
2574         ret = qla82xx_read_status_reg(ha, &val);
2575         if (ret < 0)
2576                 goto done_protect;
2577
2578         val |= (BLOCK_PROTECT_BITS << 2);
2579         /* LOCK all sectors */
2580         ret = qla82xx_write_status_reg(ha, val);
2581         if (ret < 0)
2582                 ql_log(ql_log_warn, vha, 0xb017,
2583                     "Write status register failed.\n");
2584
2585         if (qla82xx_write_disable_flash(ha) != 0)
2586                 ql_log(ql_log_warn, vha, 0xb018,
2587                     "Write disable failed.\n");
2588 done_protect:
2589         qla82xx_rom_unlock(ha);
2590         return ret;
2591 }
2592
2593 static int
2594 qla82xx_erase_sector(struct qla_hw_data *ha, int addr)
2595 {
2596         int ret = 0;
2597         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2598
2599         ret = ql82xx_rom_lock_d(ha);
2600         if (ret < 0) {
2601                 ql_log(ql_log_warn, vha, 0xb019,
2602                     "ROM Lock failed.\n");
2603                 return ret;
2604         }
2605
2606         qla82xx_flash_set_write_enable(ha);
2607         qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ADDRESS, addr);
2608         qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 3);
2609         qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_SE);
2610
2611         if (qla82xx_wait_rom_done(ha)) {
2612                 ql_log(ql_log_warn, vha, 0xb01a,
2613                     "Error waiting for rom done.\n");
2614                 ret = -1;
2615                 goto done;
2616         }
2617         ret = qla82xx_flash_wait_write_finish(ha);
2618 done:
2619         qla82xx_rom_unlock(ha);
2620         return ret;
2621 }
2622
2623 /*
2624  * Address and length are byte address
2625  */
2626 void *
2627 qla82xx_read_optrom_data(struct scsi_qla_host *vha, void *buf,
2628         uint32_t offset, uint32_t length)
2629 {
2630         scsi_block_requests(vha->host);
2631         qla82xx_read_flash_data(vha, buf, offset, length);
2632         scsi_unblock_requests(vha->host);
2633         return buf;
2634 }
2635
2636 static int
2637 qla82xx_write_flash_data(struct scsi_qla_host *vha, __le32 *dwptr,
2638         uint32_t faddr, uint32_t dwords)
2639 {
2640         int ret;
2641         uint32_t liter;
2642         uint32_t rest_addr;
2643         dma_addr_t optrom_dma;
2644         void *optrom = NULL;
2645         int page_mode = 0;
2646         struct qla_hw_data *ha = vha->hw;
2647
2648         ret = -1;
2649
2650         /* Prepare burst-capable write on supported ISPs. */
2651         if (page_mode && !(faddr & 0xfff) &&
2652             dwords > OPTROM_BURST_DWORDS) {
2653                 optrom = dma_alloc_coherent(&ha->pdev->dev, OPTROM_BURST_SIZE,
2654                     &optrom_dma, GFP_KERNEL);
2655                 if (!optrom) {
2656                         ql_log(ql_log_warn, vha, 0xb01b,
2657                             "Unable to allocate memory "
2658                             "for optrom burst write (%x KB).\n",
2659                             OPTROM_BURST_SIZE / 1024);
2660                 }
2661         }
2662
2663         rest_addr = ha->fdt_block_size - 1;
2664
2665         ret = qla82xx_unprotect_flash(ha);
2666         if (ret) {
2667                 ql_log(ql_log_warn, vha, 0xb01c,
2668                     "Unable to unprotect flash for update.\n");
2669                 goto write_done;
2670         }
2671
2672         for (liter = 0; liter < dwords; liter++, faddr += 4, dwptr++) {
2673                 /* Are we at the beginning of a sector? */
2674                 if ((faddr & rest_addr) == 0) {
2675
2676                         ret = qla82xx_erase_sector(ha, faddr);
2677                         if (ret) {
2678                                 ql_log(ql_log_warn, vha, 0xb01d,
2679                                     "Unable to erase sector: address=%x.\n",
2680                                     faddr);
2681                                 break;
2682                         }
2683                 }
2684
2685                 /* Go with burst-write. */
2686                 if (optrom && (liter + OPTROM_BURST_DWORDS) <= dwords) {
2687                         /* Copy data to DMA'ble buffer. */
2688                         memcpy(optrom, dwptr, OPTROM_BURST_SIZE);
2689
2690                         ret = qla2x00_load_ram(vha, optrom_dma,
2691                             (ha->flash_data_off | faddr),
2692                             OPTROM_BURST_DWORDS);
2693                         if (ret != QLA_SUCCESS) {
2694                                 ql_log(ql_log_warn, vha, 0xb01e,
2695                                     "Unable to burst-write optrom segment "
2696                                     "(%x/%x/%llx).\n", ret,
2697                                     (ha->flash_data_off | faddr),
2698                                     (unsigned long long)optrom_dma);
2699                                 ql_log(ql_log_warn, vha, 0xb01f,
2700                                     "Reverting to slow-write.\n");
2701
2702                                 dma_free_coherent(&ha->pdev->dev,
2703                                     OPTROM_BURST_SIZE, optrom, optrom_dma);
2704                                 optrom = NULL;
2705                         } else {
2706                                 liter += OPTROM_BURST_DWORDS - 1;
2707                                 faddr += OPTROM_BURST_DWORDS - 1;
2708                                 dwptr += OPTROM_BURST_DWORDS - 1;
2709                                 continue;
2710                         }
2711                 }
2712
2713                 ret = qla82xx_write_flash_dword(ha, faddr,
2714                                                 le32_to_cpu(*dwptr));
2715                 if (ret) {
2716                         ql_dbg(ql_dbg_p3p, vha, 0xb020,
2717                             "Unable to program flash address=%x data=%x.\n",
2718                             faddr, *dwptr);
2719                         break;
2720                 }
2721         }
2722
2723         ret = qla82xx_protect_flash(ha);
2724         if (ret)
2725                 ql_log(ql_log_warn, vha, 0xb021,
2726                     "Unable to protect flash after update.\n");
2727 write_done:
2728         if (optrom)
2729                 dma_free_coherent(&ha->pdev->dev,
2730                     OPTROM_BURST_SIZE, optrom, optrom_dma);
2731         return ret;
2732 }
2733
2734 int
2735 qla82xx_write_optrom_data(struct scsi_qla_host *vha, void *buf,
2736         uint32_t offset, uint32_t length)
2737 {
2738         int rval;
2739
2740         /* Suspend HBA. */
2741         scsi_block_requests(vha->host);
2742         rval = qla82xx_write_flash_data(vha, buf, offset, length >> 2);
2743         scsi_unblock_requests(vha->host);
2744
2745         /* Convert return ISP82xx to generic */
2746         if (rval)
2747                 rval = QLA_FUNCTION_FAILED;
2748         else
2749                 rval = QLA_SUCCESS;
2750         return rval;
2751 }
2752
2753 void
2754 qla82xx_start_iocbs(scsi_qla_host_t *vha)
2755 {
2756         struct qla_hw_data *ha = vha->hw;
2757         struct req_que *req = ha->req_q_map[0];
2758         uint32_t dbval;
2759
2760         /* Adjust ring index. */
2761         req->ring_index++;
2762         if (req->ring_index == req->length) {
2763                 req->ring_index = 0;
2764                 req->ring_ptr = req->ring;
2765         } else
2766                 req->ring_ptr++;
2767
2768         dbval = 0x04 | (ha->portnum << 5);
2769
2770         dbval = dbval | (req->id << 8) | (req->ring_index << 16);
2771         if (ql2xdbwr)
2772                 qla82xx_wr_32(ha, (unsigned long)ha->nxdb_wr_ptr, dbval);
2773         else {
2774                 wrt_reg_dword(ha->nxdb_wr_ptr, dbval);
2775                 wmb();
2776                 while (rd_reg_dword(ha->nxdb_rd_ptr) != dbval) {
2777                         wrt_reg_dword(ha->nxdb_wr_ptr, dbval);
2778                         wmb();
2779                 }
2780         }
2781 }
2782
2783 static void
2784 qla82xx_rom_lock_recovery(struct qla_hw_data *ha)
2785 {
2786         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2787         uint32_t lock_owner = 0;
2788
2789         if (qla82xx_rom_lock(ha)) {
2790                 lock_owner = qla82xx_rd_32(ha, QLA82XX_ROM_LOCK_ID);
2791                 /* Someone else is holding the lock. */
2792                 ql_log(ql_log_info, vha, 0xb022,
2793                     "Resetting rom_lock, Lock Owner %u.\n", lock_owner);
2794         }
2795         /*
2796          * Either we got the lock, or someone
2797          * else died while holding it.
2798          * In either case, unlock.
2799          */
2800         qla82xx_rom_unlock(ha);
2801 }
2802
2803 /*
2804  * qla82xx_device_bootstrap
2805  *    Initialize device, set DEV_READY, start fw
2806  *
2807  * Note:
2808  *      IDC lock must be held upon entry
2809  *
2810  * Return:
2811  *    Success : 0
2812  *    Failed  : 1
2813  */
2814 static int
2815 qla82xx_device_bootstrap(scsi_qla_host_t *vha)
2816 {
2817         int rval = QLA_SUCCESS;
2818         int i;
2819         uint32_t old_count, count;
2820         struct qla_hw_data *ha = vha->hw;
2821         int need_reset = 0;
2822
2823         need_reset = qla82xx_need_reset(ha);
2824
2825         if (need_reset) {
2826                 /* We are trying to perform a recovery here. */
2827                 if (ha->flags.isp82xx_fw_hung)
2828                         qla82xx_rom_lock_recovery(ha);
2829         } else  {
2830                 old_count = qla82xx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER);
2831                 for (i = 0; i < 10; i++) {
2832                         msleep(200);
2833                         count = qla82xx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER);
2834                         if (count != old_count) {
2835                                 rval = QLA_SUCCESS;
2836                                 goto dev_ready;
2837                         }
2838                 }
2839                 qla82xx_rom_lock_recovery(ha);
2840         }
2841
2842         /* set to DEV_INITIALIZING */
2843         ql_log(ql_log_info, vha, 0x009e,
2844             "HW State: INITIALIZING.\n");
2845         qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_INITIALIZING);
2846
2847         qla82xx_idc_unlock(ha);
2848         rval = qla82xx_start_firmware(vha);
2849         qla82xx_idc_lock(ha);
2850
2851         if (rval != QLA_SUCCESS) {
2852                 ql_log(ql_log_fatal, vha, 0x00ad,
2853                     "HW State: FAILED.\n");
2854                 qla82xx_clear_drv_active(ha);
2855                 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_FAILED);
2856                 return rval;
2857         }
2858
2859 dev_ready:
2860         ql_log(ql_log_info, vha, 0x00ae,
2861             "HW State: READY.\n");
2862         qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_READY);
2863
2864         return QLA_SUCCESS;
2865 }
2866
2867 /*
2868 * qla82xx_need_qsnt_handler
2869 *    Code to start quiescence sequence
2870 *
2871 * Note:
2872 *      IDC lock must be held upon entry
2873 *
2874 * Return: void
2875 */
2876
2877 static void
2878 qla82xx_need_qsnt_handler(scsi_qla_host_t *vha)
2879 {
2880         struct qla_hw_data *ha = vha->hw;
2881         uint32_t dev_state, drv_state, drv_active;
2882         unsigned long reset_timeout;
2883
2884         if (vha->flags.online) {
2885                 /*Block any further I/O and wait for pending cmnds to complete*/
2886                 qla2x00_quiesce_io(vha);
2887         }
2888
2889         /* Set the quiescence ready bit */
2890         qla82xx_set_qsnt_ready(ha);
2891
2892         /*wait for 30 secs for other functions to ack */
2893         reset_timeout = jiffies + (30 * HZ);
2894
2895         drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2896         drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2897         /* Its 2 that is written when qsnt is acked, moving one bit */
2898         drv_active = drv_active << 0x01;
2899
2900         while (drv_state != drv_active) {
2901
2902                 if (time_after_eq(jiffies, reset_timeout)) {
2903                         /* quiescence timeout, other functions didn't ack
2904                          * changing the state to DEV_READY
2905                          */
2906                         ql_log(ql_log_info, vha, 0xb023,
2907                             "%s : QUIESCENT TIMEOUT DRV_ACTIVE:%d "
2908                             "DRV_STATE:%d.\n", QLA2XXX_DRIVER_NAME,
2909                             drv_active, drv_state);
2910                         qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
2911                             QLA8XXX_DEV_READY);
2912                         ql_log(ql_log_info, vha, 0xb025,
2913                             "HW State: DEV_READY.\n");
2914                         qla82xx_idc_unlock(ha);
2915                         qla2x00_perform_loop_resync(vha);
2916                         qla82xx_idc_lock(ha);
2917
2918                         qla82xx_clear_qsnt_ready(vha);
2919                         return;
2920                 }
2921
2922                 qla82xx_idc_unlock(ha);
2923                 msleep(1000);
2924                 qla82xx_idc_lock(ha);
2925
2926                 drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
2927                 drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
2928                 drv_active = drv_active << 0x01;
2929         }
2930         dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
2931         /* everyone acked so set the state to DEV_QUIESCENCE */
2932         if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT) {
2933                 ql_log(ql_log_info, vha, 0xb026,
2934                     "HW State: DEV_QUIESCENT.\n");
2935                 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_QUIESCENT);
2936         }
2937 }
2938
2939 /*
2940 * qla82xx_wait_for_state_change
2941 *    Wait for device state to change from given current state
2942 *
2943 * Note:
2944 *     IDC lock must not be held upon entry
2945 *
2946 * Return:
2947 *    Changed device state.
2948 */
2949 uint32_t
2950 qla82xx_wait_for_state_change(scsi_qla_host_t *vha, uint32_t curr_state)
2951 {
2952         struct qla_hw_data *ha = vha->hw;
2953         uint32_t dev_state;
2954
2955         do {
2956                 msleep(1000);
2957                 qla82xx_idc_lock(ha);
2958                 dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
2959                 qla82xx_idc_unlock(ha);
2960         } while (dev_state == curr_state);
2961
2962         return dev_state;
2963 }
2964
2965 void
2966 qla8xxx_dev_failed_handler(scsi_qla_host_t *vha)
2967 {
2968         struct qla_hw_data *ha = vha->hw;
2969
2970         /* Disable the board */
2971         ql_log(ql_log_fatal, vha, 0x00b8,
2972             "Disabling the board.\n");
2973
2974         if (IS_QLA82XX(ha)) {
2975                 qla82xx_clear_drv_active(ha);
2976                 qla82xx_idc_unlock(ha);
2977         } else if (IS_QLA8044(ha)) {
2978                 qla8044_clear_drv_active(ha);
2979                 qla8044_idc_unlock(ha);
2980         }
2981
2982         /* Set DEV_FAILED flag to disable timer */
2983         vha->device_flags |= DFLG_DEV_FAILED;
2984         qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
2985         qla2x00_mark_all_devices_lost(vha);
2986         vha->flags.online = 0;
2987         vha->flags.init_done = 0;
2988 }
2989
2990 /*
2991  * qla82xx_need_reset_handler
2992  *    Code to start reset sequence
2993  *
2994  * Note:
2995  *      IDC lock must be held upon entry
2996  *
2997  * Return:
2998  *    Success : 0
2999  *    Failed  : 1
3000  */
3001 static void
3002 qla82xx_need_reset_handler(scsi_qla_host_t *vha)
3003 {
3004         uint32_t dev_state, drv_state, drv_active;
3005         uint32_t active_mask = 0;
3006         unsigned long reset_timeout;
3007         struct qla_hw_data *ha = vha->hw;
3008         struct req_que *req = ha->req_q_map[0];
3009
3010         if (vha->flags.online) {
3011                 qla82xx_idc_unlock(ha);
3012                 qla2x00_abort_isp_cleanup(vha);
3013                 ha->isp_ops->get_flash_version(vha, req->ring);
3014                 ha->isp_ops->nvram_config(vha);
3015                 qla82xx_idc_lock(ha);
3016         }
3017
3018         drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3019         if (!ha->flags.nic_core_reset_owner) {
3020                 ql_dbg(ql_dbg_p3p, vha, 0xb028,
3021                     "reset_acknowledged by 0x%x\n", ha->portnum);
3022                 qla82xx_set_rst_ready(ha);
3023         } else {
3024                 active_mask = ~(QLA82XX_DRV_ACTIVE << (ha->portnum * 4));
3025                 drv_active &= active_mask;
3026                 ql_dbg(ql_dbg_p3p, vha, 0xb029,
3027                     "active_mask: 0x%08x\n", active_mask);
3028         }
3029
3030         /* wait for 10 seconds for reset ack from all functions */
3031         reset_timeout = jiffies + (ha->fcoe_reset_timeout * HZ);
3032
3033         drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
3034         drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3035         dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3036
3037         ql_dbg(ql_dbg_p3p, vha, 0xb02a,
3038             "drv_state: 0x%08x, drv_active: 0x%08x, "
3039             "dev_state: 0x%08x, active_mask: 0x%08x\n",
3040             drv_state, drv_active, dev_state, active_mask);
3041
3042         while (drv_state != drv_active &&
3043             dev_state != QLA8XXX_DEV_INITIALIZING) {
3044                 if (time_after_eq(jiffies, reset_timeout)) {
3045                         ql_log(ql_log_warn, vha, 0x00b5,
3046                             "Reset timeout.\n");
3047                         break;
3048                 }
3049                 qla82xx_idc_unlock(ha);
3050                 msleep(1000);
3051                 qla82xx_idc_lock(ha);
3052                 drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
3053                 drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3054                 if (ha->flags.nic_core_reset_owner)
3055                         drv_active &= active_mask;
3056                 dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3057         }
3058
3059         ql_dbg(ql_dbg_p3p, vha, 0xb02b,
3060             "drv_state: 0x%08x, drv_active: 0x%08x, "
3061             "dev_state: 0x%08x, active_mask: 0x%08x\n",
3062             drv_state, drv_active, dev_state, active_mask);
3063
3064         ql_log(ql_log_info, vha, 0x00b6,
3065             "Device state is 0x%x = %s.\n",
3066             dev_state,
3067             dev_state < MAX_STATES ? qdev_state(dev_state) : "Unknown");
3068
3069         /* Force to DEV_COLD unless someone else is starting a reset */
3070         if (dev_state != QLA8XXX_DEV_INITIALIZING &&
3071             dev_state != QLA8XXX_DEV_COLD) {
3072                 ql_log(ql_log_info, vha, 0x00b7,
3073                     "HW State: COLD/RE-INIT.\n");
3074                 qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_COLD);
3075                 qla82xx_set_rst_ready(ha);
3076                 if (ql2xmdenable) {
3077                         if (qla82xx_md_collect(vha))
3078                                 ql_log(ql_log_warn, vha, 0xb02c,
3079                                     "Minidump not collected.\n");
3080                 } else
3081                         ql_log(ql_log_warn, vha, 0xb04f,
3082                             "Minidump disabled.\n");
3083         }
3084 }
3085
3086 int
3087 qla82xx_check_md_needed(scsi_qla_host_t *vha)
3088 {
3089         struct qla_hw_data *ha = vha->hw;
3090         uint16_t fw_major_version, fw_minor_version, fw_subminor_version;
3091         int rval = QLA_SUCCESS;
3092
3093         fw_major_version = ha->fw_major_version;
3094         fw_minor_version = ha->fw_minor_version;
3095         fw_subminor_version = ha->fw_subminor_version;
3096
3097         rval = qla2x00_get_fw_version(vha);
3098         if (rval != QLA_SUCCESS)
3099                 return rval;
3100
3101         if (ql2xmdenable) {
3102                 if (!ha->fw_dumped) {
3103                         if ((fw_major_version != ha->fw_major_version ||
3104                             fw_minor_version != ha->fw_minor_version ||
3105                             fw_subminor_version != ha->fw_subminor_version) ||
3106                             (ha->prev_minidump_failed)) {
3107                                 ql_dbg(ql_dbg_p3p, vha, 0xb02d,
3108                                     "Firmware version differs Previous version: %d:%d:%d - New version: %d:%d:%d, prev_minidump_failed: %d.\n",
3109                                     fw_major_version, fw_minor_version,
3110                                     fw_subminor_version,
3111                                     ha->fw_major_version,
3112                                     ha->fw_minor_version,
3113                                     ha->fw_subminor_version,
3114                                     ha->prev_minidump_failed);
3115                                 /* Release MiniDump resources */
3116                                 qla82xx_md_free(vha);
3117                                 /* ALlocate MiniDump resources */
3118                                 qla82xx_md_prep(vha);
3119                         }
3120                 } else
3121                         ql_log(ql_log_info, vha, 0xb02e,
3122                             "Firmware dump available to retrieve\n");
3123         }
3124         return rval;
3125 }
3126
3127
3128 static int
3129 qla82xx_check_fw_alive(scsi_qla_host_t *vha)
3130 {
3131         uint32_t fw_heartbeat_counter;
3132         int status = 0;
3133
3134         fw_heartbeat_counter = qla82xx_rd_32(vha->hw,
3135                 QLA82XX_PEG_ALIVE_COUNTER);
3136         /* all 0xff, assume AER/EEH in progress, ignore */
3137         if (fw_heartbeat_counter == 0xffffffff) {
3138                 ql_dbg(ql_dbg_timer, vha, 0x6003,
3139                     "FW heartbeat counter is 0xffffffff, "
3140                     "returning status=%d.\n", status);
3141                 return status;
3142         }
3143         if (vha->fw_heartbeat_counter == fw_heartbeat_counter) {
3144                 vha->seconds_since_last_heartbeat++;
3145                 /* FW not alive after 2 seconds */
3146                 if (vha->seconds_since_last_heartbeat == 2) {
3147                         vha->seconds_since_last_heartbeat = 0;
3148                         status = 1;
3149                 }
3150         } else
3151                 vha->seconds_since_last_heartbeat = 0;
3152         vha->fw_heartbeat_counter = fw_heartbeat_counter;
3153         if (status)
3154                 ql_dbg(ql_dbg_timer, vha, 0x6004,
3155                     "Returning status=%d.\n", status);
3156         return status;
3157 }
3158
3159 /*
3160  * qla82xx_device_state_handler
3161  *      Main state handler
3162  *
3163  * Note:
3164  *      IDC lock must be held upon entry
3165  *
3166  * Return:
3167  *    Success : 0
3168  *    Failed  : 1
3169  */
3170 int
3171 qla82xx_device_state_handler(scsi_qla_host_t *vha)
3172 {
3173         uint32_t dev_state;
3174         uint32_t old_dev_state;
3175         int rval = QLA_SUCCESS;
3176         unsigned long dev_init_timeout;
3177         struct qla_hw_data *ha = vha->hw;
3178         int loopcount = 0;
3179
3180         qla82xx_idc_lock(ha);
3181         if (!vha->flags.init_done) {
3182                 qla82xx_set_drv_active(vha);
3183                 qla82xx_set_idc_version(vha);
3184         }
3185
3186         dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3187         old_dev_state = dev_state;
3188         ql_log(ql_log_info, vha, 0x009b,
3189             "Device state is 0x%x = %s.\n",
3190             dev_state,
3191             dev_state < MAX_STATES ? qdev_state(dev_state) : "Unknown");
3192
3193         /* wait for 30 seconds for device to go ready */
3194         dev_init_timeout = jiffies + (ha->fcoe_dev_init_timeout * HZ);
3195
3196         while (1) {
3197
3198                 if (time_after_eq(jiffies, dev_init_timeout)) {
3199                         ql_log(ql_log_fatal, vha, 0x009c,
3200                             "Device init failed.\n");
3201                         rval = QLA_FUNCTION_FAILED;
3202                         break;
3203                 }
3204                 dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3205                 if (old_dev_state != dev_state) {
3206                         loopcount = 0;
3207                         old_dev_state = dev_state;
3208                 }
3209                 if (loopcount < 5) {
3210                         ql_log(ql_log_info, vha, 0x009d,
3211                             "Device state is 0x%x = %s.\n",
3212                             dev_state,
3213                             dev_state < MAX_STATES ? qdev_state(dev_state) :
3214                             "Unknown");
3215                 }
3216
3217                 switch (dev_state) {
3218                 case QLA8XXX_DEV_READY:
3219                         ha->flags.nic_core_reset_owner = 0;
3220                         goto rel_lock;
3221                 case QLA8XXX_DEV_COLD:
3222                         rval = qla82xx_device_bootstrap(vha);
3223                         break;
3224                 case QLA8XXX_DEV_INITIALIZING:
3225                         qla82xx_idc_unlock(ha);
3226                         msleep(1000);
3227                         qla82xx_idc_lock(ha);
3228                         break;
3229                 case QLA8XXX_DEV_NEED_RESET:
3230                         if (!ql2xdontresethba)
3231                                 qla82xx_need_reset_handler(vha);
3232                         else {
3233                                 qla82xx_idc_unlock(ha);
3234                                 msleep(1000);
3235                                 qla82xx_idc_lock(ha);
3236                         }
3237                         dev_init_timeout = jiffies +
3238                             (ha->fcoe_dev_init_timeout * HZ);
3239                         break;
3240                 case QLA8XXX_DEV_NEED_QUIESCENT:
3241                         qla82xx_need_qsnt_handler(vha);
3242                         /* Reset timeout value after quiescence handler */
3243                         dev_init_timeout = jiffies + (ha->fcoe_dev_init_timeout
3244                                                          * HZ);
3245                         break;
3246                 case QLA8XXX_DEV_QUIESCENT:
3247                         /* Owner will exit and other will wait for the state
3248                          * to get changed
3249                          */
3250                         if (ha->flags.quiesce_owner)
3251                                 goto rel_lock;
3252
3253                         qla82xx_idc_unlock(ha);
3254                         msleep(1000);
3255                         qla82xx_idc_lock(ha);
3256
3257                         /* Reset timeout value after quiescence handler */
3258                         dev_init_timeout = jiffies + (ha->fcoe_dev_init_timeout
3259                                                          * HZ);
3260                         break;
3261                 case QLA8XXX_DEV_FAILED:
3262                         qla8xxx_dev_failed_handler(vha);
3263                         rval = QLA_FUNCTION_FAILED;
3264                         goto exit;
3265                 default:
3266                         qla82xx_idc_unlock(ha);
3267                         msleep(1000);
3268                         qla82xx_idc_lock(ha);
3269                 }
3270                 loopcount++;
3271         }
3272 rel_lock:
3273         qla82xx_idc_unlock(ha);
3274 exit:
3275         return rval;
3276 }
3277
3278 static int qla82xx_check_temp(scsi_qla_host_t *vha)
3279 {
3280         uint32_t temp, temp_state, temp_val;
3281         struct qla_hw_data *ha = vha->hw;
3282
3283         temp = qla82xx_rd_32(ha, CRB_TEMP_STATE);
3284         temp_state = qla82xx_get_temp_state(temp);
3285         temp_val = qla82xx_get_temp_val(temp);
3286
3287         if (temp_state == QLA82XX_TEMP_PANIC) {
3288                 ql_log(ql_log_warn, vha, 0x600e,
3289                     "Device temperature %d degrees C exceeds "
3290                     " maximum allowed. Hardware has been shut down.\n",
3291                     temp_val);
3292                 return 1;
3293         } else if (temp_state == QLA82XX_TEMP_WARN) {
3294                 ql_log(ql_log_warn, vha, 0x600f,
3295                     "Device temperature %d degrees C exceeds "
3296                     "operating range. Immediate action needed.\n",
3297                     temp_val);
3298         }
3299         return 0;
3300 }
3301
3302 int qla82xx_read_temperature(scsi_qla_host_t *vha)
3303 {
3304         uint32_t temp;
3305
3306         temp = qla82xx_rd_32(vha->hw, CRB_TEMP_STATE);
3307         return qla82xx_get_temp_val(temp);
3308 }
3309
3310 void qla82xx_clear_pending_mbx(scsi_qla_host_t *vha)
3311 {
3312         struct qla_hw_data *ha = vha->hw;
3313
3314         if (ha->flags.mbox_busy) {
3315                 ha->flags.mbox_int = 1;
3316                 ha->flags.mbox_busy = 0;
3317                 ql_log(ql_log_warn, vha, 0x6010,
3318                     "Doing premature completion of mbx command.\n");
3319                 if (test_and_clear_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags))
3320                         complete(&ha->mbx_intr_comp);
3321         }
3322 }
3323
3324 void qla82xx_watchdog(scsi_qla_host_t *vha)
3325 {
3326         uint32_t dev_state, halt_status;
3327         struct qla_hw_data *ha = vha->hw;
3328
3329         /* don't poll if reset is going on */
3330         if (!ha->flags.nic_core_reset_hdlr_active) {
3331                 dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3332                 if (qla82xx_check_temp(vha)) {
3333                         set_bit(ISP_UNRECOVERABLE, &vha->dpc_flags);
3334                         ha->flags.isp82xx_fw_hung = 1;
3335                         qla82xx_clear_pending_mbx(vha);
3336                 } else if (dev_state == QLA8XXX_DEV_NEED_RESET &&
3337                     !test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags)) {
3338                         ql_log(ql_log_warn, vha, 0x6001,
3339                             "Adapter reset needed.\n");
3340                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3341                 } else if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT &&
3342                         !test_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags)) {
3343                         ql_log(ql_log_warn, vha, 0x6002,
3344                             "Quiescent needed.\n");
3345                         set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
3346                 } else if (dev_state == QLA8XXX_DEV_FAILED &&
3347                         !test_bit(ISP_UNRECOVERABLE, &vha->dpc_flags) &&
3348                         vha->flags.online == 1) {
3349                         ql_log(ql_log_warn, vha, 0xb055,
3350                             "Adapter state is failed. Offlining.\n");
3351                         set_bit(ISP_UNRECOVERABLE, &vha->dpc_flags);
3352                         ha->flags.isp82xx_fw_hung = 1;
3353                         qla82xx_clear_pending_mbx(vha);
3354                 } else {
3355                         if (qla82xx_check_fw_alive(vha)) {
3356                                 ql_dbg(ql_dbg_timer, vha, 0x6011,
3357                                     "disabling pause transmit on port 0 & 1.\n");
3358                                 qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
3359                                     CRB_NIU_XG_PAUSE_CTL_P0|CRB_NIU_XG_PAUSE_CTL_P1);
3360                                 halt_status = qla82xx_rd_32(ha,
3361                                     QLA82XX_PEG_HALT_STATUS1);
3362                                 ql_log(ql_log_info, vha, 0x6005,
3363                                     "dumping hw/fw registers:.\n "
3364                                     " PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,.\n "
3365                                     " PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,.\n "
3366                                     " PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,.\n "
3367                                     " PEG_NET_4_PC: 0x%x.\n", halt_status,
3368                                     qla82xx_rd_32(ha, QLA82XX_PEG_HALT_STATUS2),
3369                                     qla82xx_rd_32(ha,
3370                                             QLA82XX_CRB_PEG_NET_0 + 0x3c),
3371                                     qla82xx_rd_32(ha,
3372                                             QLA82XX_CRB_PEG_NET_1 + 0x3c),
3373                                     qla82xx_rd_32(ha,
3374                                             QLA82XX_CRB_PEG_NET_2 + 0x3c),
3375                                     qla82xx_rd_32(ha,
3376                                             QLA82XX_CRB_PEG_NET_3 + 0x3c),
3377                                     qla82xx_rd_32(ha,
3378                                             QLA82XX_CRB_PEG_NET_4 + 0x3c));
3379                                 if (((halt_status & 0x1fffff00) >> 8) == 0x67)
3380                                         ql_log(ql_log_warn, vha, 0xb052,
3381                                             "Firmware aborted with "
3382                                             "error code 0x00006700. Device is "
3383                                             "being reset.\n");
3384                                 if (halt_status & HALT_STATUS_UNRECOVERABLE) {
3385                                         set_bit(ISP_UNRECOVERABLE,
3386                                             &vha->dpc_flags);
3387                                 } else {
3388                                         ql_log(ql_log_info, vha, 0x6006,
3389                                             "Detect abort  needed.\n");
3390                                         set_bit(ISP_ABORT_NEEDED,
3391                                             &vha->dpc_flags);
3392                                 }
3393                                 ha->flags.isp82xx_fw_hung = 1;
3394                                 ql_log(ql_log_warn, vha, 0x6007, "Firmware hung.\n");
3395                                 qla82xx_clear_pending_mbx(vha);
3396                         }
3397                 }
3398         }
3399 }
3400
3401 int qla82xx_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
3402 {
3403         int rval = -1;
3404         struct qla_hw_data *ha = vha->hw;
3405
3406         if (IS_QLA82XX(ha))
3407                 rval = qla82xx_device_state_handler(vha);
3408         else if (IS_QLA8044(ha)) {
3409                 qla8044_idc_lock(ha);
3410                 /* Decide the reset ownership */
3411                 qla83xx_reset_ownership(vha);
3412                 qla8044_idc_unlock(ha);
3413                 rval = qla8044_device_state_handler(vha);
3414         }
3415         return rval;
3416 }
3417
3418 void
3419 qla82xx_set_reset_owner(scsi_qla_host_t *vha)
3420 {
3421         struct qla_hw_data *ha = vha->hw;
3422         uint32_t dev_state = 0;
3423
3424         if (IS_QLA82XX(ha))
3425                 dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3426         else if (IS_QLA8044(ha))
3427                 dev_state = qla8044_rd_direct(vha, QLA8044_CRB_DEV_STATE_INDEX);
3428
3429         if (dev_state == QLA8XXX_DEV_READY) {
3430                 ql_log(ql_log_info, vha, 0xb02f,
3431                     "HW State: NEED RESET\n");
3432                 if (IS_QLA82XX(ha)) {
3433                         qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3434                             QLA8XXX_DEV_NEED_RESET);
3435                         ha->flags.nic_core_reset_owner = 1;
3436                         ql_dbg(ql_dbg_p3p, vha, 0xb030,
3437                             "reset_owner is 0x%x\n", ha->portnum);
3438                 } else if (IS_QLA8044(ha))
3439                         qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX,
3440                             QLA8XXX_DEV_NEED_RESET);
3441         } else
3442                 ql_log(ql_log_info, vha, 0xb031,
3443                     "Device state is 0x%x = %s.\n",
3444                     dev_state,
3445                     dev_state < MAX_STATES ? qdev_state(dev_state) : "Unknown");
3446 }
3447
3448 /*
3449  *  qla82xx_abort_isp
3450  *      Resets ISP and aborts all outstanding commands.
3451  *
3452  * Input:
3453  *      ha           = adapter block pointer.
3454  *
3455  * Returns:
3456  *      0 = success
3457  */
3458 int
3459 qla82xx_abort_isp(scsi_qla_host_t *vha)
3460 {
3461         int rval = -1;
3462         struct qla_hw_data *ha = vha->hw;
3463
3464         if (vha->device_flags & DFLG_DEV_FAILED) {
3465                 ql_log(ql_log_warn, vha, 0x8024,
3466                     "Device in failed state, exiting.\n");
3467                 return QLA_SUCCESS;
3468         }
3469         ha->flags.nic_core_reset_hdlr_active = 1;
3470
3471         qla82xx_idc_lock(ha);
3472         qla82xx_set_reset_owner(vha);
3473         qla82xx_idc_unlock(ha);
3474
3475         if (IS_QLA82XX(ha))
3476                 rval = qla82xx_device_state_handler(vha);
3477         else if (IS_QLA8044(ha)) {
3478                 qla8044_idc_lock(ha);
3479                 /* Decide the reset ownership */
3480                 qla83xx_reset_ownership(vha);
3481                 qla8044_idc_unlock(ha);
3482                 rval = qla8044_device_state_handler(vha);
3483         }
3484
3485         qla82xx_idc_lock(ha);
3486         qla82xx_clear_rst_ready(ha);
3487         qla82xx_idc_unlock(ha);
3488
3489         if (rval == QLA_SUCCESS) {
3490                 ha->flags.isp82xx_fw_hung = 0;
3491                 ha->flags.nic_core_reset_hdlr_active = 0;
3492                 qla82xx_restart_isp(vha);
3493         }
3494
3495         if (rval) {
3496                 vha->flags.online = 1;
3497                 if (test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
3498                         if (ha->isp_abort_cnt == 0) {
3499                                 ql_log(ql_log_warn, vha, 0x8027,
3500                                     "ISP error recover failed - board "
3501                                     "disabled.\n");
3502                                 /*
3503                                  * The next call disables the board
3504                                  * completely.
3505                                  */
3506                                 ha->isp_ops->reset_adapter(vha);
3507                                 vha->flags.online = 0;
3508                                 clear_bit(ISP_ABORT_RETRY,
3509                                     &vha->dpc_flags);
3510                                 rval = QLA_SUCCESS;
3511                         } else { /* schedule another ISP abort */
3512                                 ha->isp_abort_cnt--;
3513                                 ql_log(ql_log_warn, vha, 0x8036,
3514                                     "ISP abort - retry remaining %d.\n",
3515                                     ha->isp_abort_cnt);
3516                                 rval = QLA_FUNCTION_FAILED;
3517                         }
3518                 } else {
3519                         ha->isp_abort_cnt = MAX_RETRIES_OF_ISP_ABORT;
3520                         ql_dbg(ql_dbg_taskm, vha, 0x8029,
3521                             "ISP error recovery - retrying (%d) more times.\n",
3522                             ha->isp_abort_cnt);
3523                         set_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
3524                         rval = QLA_FUNCTION_FAILED;
3525                 }
3526         }
3527         return rval;
3528 }
3529
3530 /*
3531  *  qla82xx_fcoe_ctx_reset
3532  *      Perform a quick reset and aborts all outstanding commands.
3533  *      This will only perform an FCoE context reset and avoids a full blown
3534  *      chip reset.
3535  *
3536  * Input:
3537  *      ha = adapter block pointer.
3538  *      is_reset_path = flag for identifying the reset path.
3539  *
3540  * Returns:
3541  *      0 = success
3542  */
3543 int qla82xx_fcoe_ctx_reset(scsi_qla_host_t *vha)
3544 {
3545         int rval = QLA_FUNCTION_FAILED;
3546
3547         if (vha->flags.online) {
3548                 /* Abort all outstanding commands, so as to be requeued later */
3549                 qla2x00_abort_isp_cleanup(vha);
3550         }
3551
3552         /* Stop currently executing firmware.
3553          * This will destroy existing FCoE context at the F/W end.
3554          */
3555         qla2x00_try_to_stop_firmware(vha);
3556
3557         /* Restart. Creates a new FCoE context on INIT_FIRMWARE. */
3558         rval = qla82xx_restart_isp(vha);
3559
3560         return rval;
3561 }
3562
3563 /*
3564  * qla2x00_wait_for_fcoe_ctx_reset
3565  *    Wait till the FCoE context is reset.
3566  *
3567  * Note:
3568  *    Does context switching here.
3569  *    Release SPIN_LOCK (if any) before calling this routine.
3570  *
3571  * Return:
3572  *    Success (fcoe_ctx reset is done) : 0
3573  *    Failed  (fcoe_ctx reset not completed within max loop timout ) : 1
3574  */
3575 int qla2x00_wait_for_fcoe_ctx_reset(scsi_qla_host_t *vha)
3576 {
3577         int status = QLA_FUNCTION_FAILED;
3578         unsigned long wait_reset;
3579
3580         wait_reset = jiffies + (MAX_LOOP_TIMEOUT * HZ);
3581         while ((test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) ||
3582             test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
3583             && time_before(jiffies, wait_reset)) {
3584
3585                 set_current_state(TASK_UNINTERRUPTIBLE);
3586                 schedule_timeout(HZ);
3587
3588                 if (!test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) &&
3589                     !test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) {
3590                         status = QLA_SUCCESS;
3591                         break;
3592                 }
3593         }
3594         ql_dbg(ql_dbg_p3p, vha, 0xb027,
3595                "%s: status=%d.\n", __func__, status);
3596
3597         return status;
3598 }
3599
3600 void
3601 qla82xx_chip_reset_cleanup(scsi_qla_host_t *vha)
3602 {
3603         int i, fw_state = 0;
3604         unsigned long flags;
3605         struct qla_hw_data *ha = vha->hw;
3606
3607         /* Check if 82XX firmware is alive or not
3608          * We may have arrived here from NEED_RESET
3609          * detection only
3610          */
3611         if (!ha->flags.isp82xx_fw_hung) {
3612                 for (i = 0; i < 2; i++) {
3613                         msleep(1000);
3614                         if (IS_QLA82XX(ha))
3615                                 fw_state = qla82xx_check_fw_alive(vha);
3616                         else if (IS_QLA8044(ha))
3617                                 fw_state = qla8044_check_fw_alive(vha);
3618                         if (fw_state) {
3619                                 ha->flags.isp82xx_fw_hung = 1;
3620                                 qla82xx_clear_pending_mbx(vha);
3621                                 break;
3622                         }
3623                 }
3624         }
3625         ql_dbg(ql_dbg_init, vha, 0x00b0,
3626             "Entered %s fw_hung=%d.\n",
3627             __func__, ha->flags.isp82xx_fw_hung);
3628
3629         /* Abort all commands gracefully if fw NOT hung */
3630         if (!ha->flags.isp82xx_fw_hung) {
3631                 int cnt, que;
3632                 srb_t *sp;
3633                 struct req_que *req;
3634
3635                 spin_lock_irqsave(&ha->hardware_lock, flags);
3636                 for (que = 0; que < ha->max_req_queues; que++) {
3637                         req = ha->req_q_map[que];
3638                         if (!req)
3639                                 continue;
3640                         for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++) {
3641                                 sp = req->outstanding_cmds[cnt];
3642                                 if (sp) {
3643                                         if ((!sp->u.scmd.crc_ctx ||
3644                                             (sp->flags &
3645                                                 SRB_FCP_CMND_DMA_VALID)) &&
3646                                                 !ha->flags.isp82xx_fw_hung) {
3647                                                 spin_unlock_irqrestore(
3648                                                     &ha->hardware_lock, flags);
3649                                                 if (ha->isp_ops->abort_command(sp)) {
3650                                                         ql_log(ql_log_info, vha,
3651                                                             0x00b1,
3652                                                             "mbx abort failed.\n");
3653                                                 } else {
3654                                                         ql_log(ql_log_info, vha,
3655                                                             0x00b2,
3656                                                             "mbx abort success.\n");
3657                                                 }
3658                                                 spin_lock_irqsave(&ha->hardware_lock, flags);
3659                                         }
3660                                 }
3661                         }
3662                 }
3663                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3664
3665                 /* Wait for pending cmds (physical and virtual) to complete */
3666                 if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0,
3667                     WAIT_HOST) == QLA_SUCCESS) {
3668                         ql_dbg(ql_dbg_init, vha, 0x00b3,
3669                             "Done wait for "
3670                             "pending commands.\n");
3671                 } else {
3672                         WARN_ON_ONCE(true);
3673                 }
3674         }
3675 }
3676
3677 /* Minidump related functions */
3678 static int
3679 qla82xx_minidump_process_control(scsi_qla_host_t *vha,
3680         qla82xx_md_entry_hdr_t *entry_hdr, __le32 **d_ptr)
3681 {
3682         struct qla_hw_data *ha = vha->hw;
3683         struct qla82xx_md_entry_crb *crb_entry;
3684         uint32_t read_value, opcode, poll_time;
3685         uint32_t addr, index, crb_addr;
3686         unsigned long wtime;
3687         struct qla82xx_md_template_hdr *tmplt_hdr;
3688         uint32_t rval = QLA_SUCCESS;
3689         int i;
3690
3691         tmplt_hdr = (struct qla82xx_md_template_hdr *)ha->md_tmplt_hdr;
3692         crb_entry = (struct qla82xx_md_entry_crb *)entry_hdr;
3693         crb_addr = crb_entry->addr;
3694
3695         for (i = 0; i < crb_entry->op_count; i++) {
3696                 opcode = crb_entry->crb_ctrl.opcode;
3697                 if (opcode & QLA82XX_DBG_OPCODE_WR) {
3698                         qla82xx_md_rw_32(ha, crb_addr,
3699                             crb_entry->value_1, 1);
3700                         opcode &= ~QLA82XX_DBG_OPCODE_WR;
3701                 }
3702
3703                 if (opcode & QLA82XX_DBG_OPCODE_RW) {
3704                         read_value = qla82xx_md_rw_32(ha, crb_addr, 0, 0);
3705                         qla82xx_md_rw_32(ha, crb_addr, read_value, 1);
3706                         opcode &= ~QLA82XX_DBG_OPCODE_RW;
3707                 }
3708
3709                 if (opcode & QLA82XX_DBG_OPCODE_AND) {
3710                         read_value = qla82xx_md_rw_32(ha, crb_addr, 0, 0);
3711                         read_value &= crb_entry->value_2;
3712                         opcode &= ~QLA82XX_DBG_OPCODE_AND;
3713                         if (opcode & QLA82XX_DBG_OPCODE_OR) {
3714                                 read_value |= crb_entry->value_3;
3715                                 opcode &= ~QLA82XX_DBG_OPCODE_OR;
3716                         }
3717                         qla82xx_md_rw_32(ha, crb_addr, read_value, 1);
3718                 }
3719
3720                 if (opcode & QLA82XX_DBG_OPCODE_OR) {
3721                         read_value = qla82xx_md_rw_32(ha, crb_addr, 0, 0);
3722                         read_value |= crb_entry->value_3;
3723                         qla82xx_md_rw_32(ha, crb_addr, read_value, 1);
3724                         opcode &= ~QLA82XX_DBG_OPCODE_OR;
3725                 }
3726
3727                 if (opcode & QLA82XX_DBG_OPCODE_POLL) {
3728                         poll_time = crb_entry->crb_strd.poll_timeout;
3729                         wtime = jiffies + poll_time;
3730                         read_value = qla82xx_md_rw_32(ha, crb_addr, 0, 0);
3731
3732                         do {
3733                                 if ((read_value & crb_entry->value_2)
3734                                     == crb_entry->value_1)
3735                                         break;
3736                                 else if (time_after_eq(jiffies, wtime)) {
3737                                         /* capturing dump failed */
3738                                         rval = QLA_FUNCTION_FAILED;
3739                                         break;
3740                                 } else
3741                                         read_value = qla82xx_md_rw_32(ha,
3742                                             crb_addr, 0, 0);
3743                         } while (1);
3744                         opcode &= ~QLA82XX_DBG_OPCODE_POLL;
3745                 }
3746
3747                 if (opcode & QLA82XX_DBG_OPCODE_RDSTATE) {
3748                         if (crb_entry->crb_strd.state_index_a) {
3749                                 index = crb_entry->crb_strd.state_index_a;
3750                                 addr = tmplt_hdr->saved_state_array[index];
3751                         } else
3752                                 addr = crb_addr;
3753
3754                         read_value = qla82xx_md_rw_32(ha, addr, 0, 0);
3755                         index = crb_entry->crb_ctrl.state_index_v;
3756                         tmplt_hdr->saved_state_array[index] = read_value;
3757                         opcode &= ~QLA82XX_DBG_OPCODE_RDSTATE;
3758                 }
3759
3760                 if (opcode & QLA82XX_DBG_OPCODE_WRSTATE) {
3761                         if (crb_entry->crb_strd.state_index_a) {
3762                                 index = crb_entry->crb_strd.state_index_a;
3763                                 addr = tmplt_hdr->saved_state_array[index];
3764                         } else
3765                                 addr = crb_addr;
3766
3767                         if (crb_entry->crb_ctrl.state_index_v) {
3768                                 index = crb_entry->crb_ctrl.state_index_v;
3769                                 read_value =
3770                                     tmplt_hdr->saved_state_array[index];
3771                         } else
3772                                 read_value = crb_entry->value_1;
3773
3774                         qla82xx_md_rw_32(ha, addr, read_value, 1);
3775                         opcode &= ~QLA82XX_DBG_OPCODE_WRSTATE;
3776                 }
3777
3778                 if (opcode & QLA82XX_DBG_OPCODE_MDSTATE) {
3779                         index = crb_entry->crb_ctrl.state_index_v;
3780                         read_value = tmplt_hdr->saved_state_array[index];
3781                         read_value <<= crb_entry->crb_ctrl.shl;
3782                         read_value >>= crb_entry->crb_ctrl.shr;
3783                         if (crb_entry->value_2)
3784                                 read_value &= crb_entry->value_2;
3785                         read_value |= crb_entry->value_3;
3786                         read_value += crb_entry->value_1;
3787                         tmplt_hdr->saved_state_array[index] = read_value;
3788                         opcode &= ~QLA82XX_DBG_OPCODE_MDSTATE;
3789                 }
3790                 crb_addr += crb_entry->crb_strd.addr_stride;
3791         }
3792         return rval;
3793 }
3794
3795 static void
3796 qla82xx_minidump_process_rdocm(scsi_qla_host_t *vha,
3797         qla82xx_md_entry_hdr_t *entry_hdr, __le32 **d_ptr)
3798 {
3799         struct qla_hw_data *ha = vha->hw;
3800         uint32_t r_addr, r_stride, loop_cnt, i, r_value;
3801         struct qla82xx_md_entry_rdocm *ocm_hdr;
3802         __le32 *data_ptr = *d_ptr;
3803
3804         ocm_hdr = (struct qla82xx_md_entry_rdocm *)entry_hdr;
3805         r_addr = ocm_hdr->read_addr;
3806         r_stride = ocm_hdr->read_addr_stride;
3807         loop_cnt = ocm_hdr->op_count;
3808
3809         for (i = 0; i < loop_cnt; i++) {
3810                 r_value = rd_reg_dword(r_addr + ha->nx_pcibase);
3811                 *data_ptr++ = cpu_to_le32(r_value);
3812                 r_addr += r_stride;
3813         }
3814         *d_ptr = data_ptr;
3815 }
3816
3817 static void
3818 qla82xx_minidump_process_rdmux(scsi_qla_host_t *vha,
3819         qla82xx_md_entry_hdr_t *entry_hdr, __le32 **d_ptr)
3820 {
3821         struct qla_hw_data *ha = vha->hw;
3822         uint32_t r_addr, s_stride, s_addr, s_value, loop_cnt, i, r_value;
3823         struct qla82xx_md_entry_mux *mux_hdr;
3824         __le32 *data_ptr = *d_ptr;
3825
3826         mux_hdr = (struct qla82xx_md_entry_mux *)entry_hdr;
3827         r_addr = mux_hdr->read_addr;
3828         s_addr = mux_hdr->select_addr;
3829         s_stride = mux_hdr->select_value_stride;
3830         s_value = mux_hdr->select_value;
3831         loop_cnt = mux_hdr->op_count;
3832
3833         for (i = 0; i < loop_cnt; i++) {
3834                 qla82xx_md_rw_32(ha, s_addr, s_value, 1);
3835                 r_value = qla82xx_md_rw_32(ha, r_addr, 0, 0);
3836                 *data_ptr++ = cpu_to_le32(s_value);
3837                 *data_ptr++ = cpu_to_le32(r_value);
3838                 s_value += s_stride;
3839         }
3840         *d_ptr = data_ptr;
3841 }
3842
3843 static void
3844 qla82xx_minidump_process_rdcrb(scsi_qla_host_t *vha,
3845         qla82xx_md_entry_hdr_t *entry_hdr, __le32 **d_ptr)
3846 {
3847         struct qla_hw_data *ha = vha->hw;
3848         uint32_t r_addr, r_stride, loop_cnt, i, r_value;
3849         struct qla82xx_md_entry_crb *crb_hdr;
3850         __le32 *data_ptr = *d_ptr;
3851
3852         crb_hdr = (struct qla82xx_md_entry_crb *)entry_hdr;
3853         r_addr = crb_hdr->addr;
3854         r_stride = crb_hdr->crb_strd.addr_stride;
3855         loop_cnt = crb_hdr->op_count;
3856
3857         for (i = 0; i < loop_cnt; i++) {
3858                 r_value = qla82xx_md_rw_32(ha, r_addr, 0, 0);
3859                 *data_ptr++ = cpu_to_le32(r_addr);
3860                 *data_ptr++ = cpu_to_le32(r_value);
3861                 r_addr += r_stride;
3862         }
3863         *d_ptr = data_ptr;
3864 }
3865
3866 static int
3867 qla82xx_minidump_process_l2tag(scsi_qla_host_t *vha,
3868         qla82xx_md_entry_hdr_t *entry_hdr, __le32 **d_ptr)
3869 {
3870         struct qla_hw_data *ha = vha->hw;
3871         uint32_t addr, r_addr, c_addr, t_r_addr;
3872         uint32_t i, k, loop_count, t_value, r_cnt, r_value;
3873         unsigned long p_wait, w_time, p_mask;
3874         uint32_t c_value_w, c_value_r;
3875         struct qla82xx_md_entry_cache *cache_hdr;
3876         int rval = QLA_FUNCTION_FAILED;
3877         __le32 *data_ptr = *d_ptr;
3878
3879         cache_hdr = (struct qla82xx_md_entry_cache *)entry_hdr;
3880         loop_count = cache_hdr->op_count;
3881         r_addr = cache_hdr->read_addr;
3882         c_addr = cache_hdr->control_addr;
3883         c_value_w = cache_hdr->cache_ctrl.write_value;
3884
3885         t_r_addr = cache_hdr->tag_reg_addr;
3886         t_value = cache_hdr->addr_ctrl.init_tag_value;
3887         r_cnt = cache_hdr->read_ctrl.read_addr_cnt;
3888         p_wait = cache_hdr->cache_ctrl.poll_wait;
3889         p_mask = cache_hdr->cache_ctrl.poll_mask;
3890
3891         for (i = 0; i < loop_count; i++) {
3892                 qla82xx_md_rw_32(ha, t_r_addr, t_value, 1);
3893                 if (c_value_w)
3894                         qla82xx_md_rw_32(ha, c_addr, c_value_w, 1);
3895
3896                 if (p_mask) {
3897                         w_time = jiffies + p_wait;
3898                         do {
3899                                 c_value_r = qla82xx_md_rw_32(ha, c_addr, 0, 0);
3900                                 if ((c_value_r & p_mask) == 0)
3901                                         break;
3902                                 else if (time_after_eq(jiffies, w_time)) {
3903                                         /* capturing dump failed */
3904                                         ql_dbg(ql_dbg_p3p, vha, 0xb032,
3905                                             "c_value_r: 0x%x, poll_mask: 0x%lx, "
3906                                             "w_time: 0x%lx\n",
3907                                             c_value_r, p_mask, w_time);
3908                                         return rval;
3909                                 }
3910                         } while (1);
3911                 }
3912
3913                 addr = r_addr;
3914                 for (k = 0; k < r_cnt; k++) {
3915                         r_value = qla82xx_md_rw_32(ha, addr, 0, 0);
3916                         *data_ptr++ = cpu_to_le32(r_value);
3917                         addr += cache_hdr->read_ctrl.read_addr_stride;
3918                 }
3919                 t_value += cache_hdr->addr_ctrl.tag_value_stride;
3920         }
3921         *d_ptr = data_ptr;
3922         return QLA_SUCCESS;
3923 }
3924
3925 static void
3926 qla82xx_minidump_process_l1cache(scsi_qla_host_t *vha,
3927         qla82xx_md_entry_hdr_t *entry_hdr, __le32 **d_ptr)
3928 {
3929         struct qla_hw_data *ha = vha->hw;
3930         uint32_t addr, r_addr, c_addr, t_r_addr;
3931         uint32_t i, k, loop_count, t_value, r_cnt, r_value;
3932         uint32_t c_value_w;
3933         struct qla82xx_md_entry_cache *cache_hdr;
3934         __le32 *data_ptr = *d_ptr;
3935
3936         cache_hdr = (struct qla82xx_md_entry_cache *)entry_hdr;
3937         loop_count = cache_hdr->op_count;
3938         r_addr = cache_hdr->read_addr;
3939         c_addr = cache_hdr->control_addr;
3940         c_value_w = cache_hdr->cache_ctrl.write_value;
3941
3942         t_r_addr = cache_hdr->tag_reg_addr;
3943         t_value = cache_hdr->addr_ctrl.init_tag_value;
3944         r_cnt = cache_hdr->read_ctrl.read_addr_cnt;
3945
3946         for (i = 0; i < loop_count; i++) {
3947                 qla82xx_md_rw_32(ha, t_r_addr, t_value, 1);
3948                 qla82xx_md_rw_32(ha, c_addr, c_value_w, 1);
3949                 addr = r_addr;
3950                 for (k = 0; k < r_cnt; k++) {
3951                         r_value = qla82xx_md_rw_32(ha, addr, 0, 0);
3952                         *data_ptr++ = cpu_to_le32(r_value);
3953                         addr += cache_hdr->read_ctrl.read_addr_stride;
3954                 }
3955                 t_value += cache_hdr->addr_ctrl.tag_value_stride;
3956         }
3957         *d_ptr = data_ptr;
3958 }
3959
3960 static void
3961 qla82xx_minidump_process_queue(scsi_qla_host_t *vha,
3962         qla82xx_md_entry_hdr_t *entry_hdr, __le32 **d_ptr)
3963 {
3964         struct qla_hw_data *ha = vha->hw;
3965         uint32_t s_addr, r_addr;
3966         uint32_t r_stride, r_value, r_cnt, qid = 0;
3967         uint32_t i, k, loop_cnt;
3968         struct qla82xx_md_entry_queue *q_hdr;
3969         __le32 *data_ptr = *d_ptr;
3970
3971         q_hdr = (struct qla82xx_md_entry_queue *)entry_hdr;
3972         s_addr = q_hdr->select_addr;
3973         r_cnt = q_hdr->rd_strd.read_addr_cnt;
3974         r_stride = q_hdr->rd_strd.read_addr_stride;
3975         loop_cnt = q_hdr->op_count;
3976
3977         for (i = 0; i < loop_cnt; i++) {
3978                 qla82xx_md_rw_32(ha, s_addr, qid, 1);
3979                 r_addr = q_hdr->read_addr;
3980                 for (k = 0; k < r_cnt; k++) {
3981                         r_value = qla82xx_md_rw_32(ha, r_addr, 0, 0);
3982                         *data_ptr++ = cpu_to_le32(r_value);
3983                         r_addr += r_stride;
3984                 }
3985                 qid += q_hdr->q_strd.queue_id_stride;
3986         }
3987         *d_ptr = data_ptr;
3988 }
3989
3990 static void
3991 qla82xx_minidump_process_rdrom(scsi_qla_host_t *vha,
3992         qla82xx_md_entry_hdr_t *entry_hdr, __le32 **d_ptr)
3993 {
3994         struct qla_hw_data *ha = vha->hw;
3995         uint32_t r_addr, r_value;
3996         uint32_t i, loop_cnt;
3997         struct qla82xx_md_entry_rdrom *rom_hdr;
3998         __le32 *data_ptr = *d_ptr;
3999
4000         rom_hdr = (struct qla82xx_md_entry_rdrom *)entry_hdr;
4001         r_addr = rom_hdr->read_addr;
4002         loop_cnt = rom_hdr->read_data_size/sizeof(uint32_t);
4003
4004         for (i = 0; i < loop_cnt; i++) {
4005                 qla82xx_md_rw_32(ha, MD_DIRECT_ROM_WINDOW,
4006                     (r_addr & 0xFFFF0000), 1);
4007                 r_value = qla82xx_md_rw_32(ha,
4008                     MD_DIRECT_ROM_READ_BASE +
4009                     (r_addr & 0x0000FFFF), 0, 0);
4010                 *data_ptr++ = cpu_to_le32(r_value);
4011                 r_addr += sizeof(uint32_t);
4012         }
4013         *d_ptr = data_ptr;
4014 }
4015
4016 static int
4017 qla82xx_minidump_process_rdmem(scsi_qla_host_t *vha,
4018         qla82xx_md_entry_hdr_t *entry_hdr, __le32 **d_ptr)
4019 {
4020         struct qla_hw_data *ha = vha->hw;
4021         uint32_t r_addr, r_value, r_data;
4022         uint32_t i, j, loop_cnt;
4023         struct qla82xx_md_entry_rdmem *m_hdr;
4024         unsigned long flags;
4025         int rval = QLA_FUNCTION_FAILED;
4026         __le32 *data_ptr = *d_ptr;
4027
4028         m_hdr = (struct qla82xx_md_entry_rdmem *)entry_hdr;
4029         r_addr = m_hdr->read_addr;
4030         loop_cnt = m_hdr->read_data_size/16;
4031
4032         if (r_addr & 0xf) {
4033                 ql_log(ql_log_warn, vha, 0xb033,
4034                     "Read addr 0x%x not 16 bytes aligned\n", r_addr);
4035                 return rval;
4036         }
4037
4038         if (m_hdr->read_data_size % 16) {
4039                 ql_log(ql_log_warn, vha, 0xb034,
4040                     "Read data[0x%x] not multiple of 16 bytes\n",
4041                     m_hdr->read_data_size);
4042                 return rval;
4043         }
4044
4045         ql_dbg(ql_dbg_p3p, vha, 0xb035,
4046             "[%s]: rdmem_addr: 0x%x, read_data_size: 0x%x, loop_cnt: 0x%x\n",
4047             __func__, r_addr, m_hdr->read_data_size, loop_cnt);
4048
4049         write_lock_irqsave(&ha->hw_lock, flags);
4050         for (i = 0; i < loop_cnt; i++) {
4051                 qla82xx_md_rw_32(ha, MD_MIU_TEST_AGT_ADDR_LO, r_addr, 1);
4052                 r_value = 0;
4053                 qla82xx_md_rw_32(ha, MD_MIU_TEST_AGT_ADDR_HI, r_value, 1);
4054                 r_value = MIU_TA_CTL_ENABLE;
4055                 qla82xx_md_rw_32(ha, MD_MIU_TEST_AGT_CTRL, r_value, 1);
4056                 r_value = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE;
4057                 qla82xx_md_rw_32(ha, MD_MIU_TEST_AGT_CTRL, r_value, 1);
4058
4059                 for (j = 0; j < MAX_CTL_CHECK; j++) {
4060                         r_value = qla82xx_md_rw_32(ha,
4061                             MD_MIU_TEST_AGT_CTRL, 0, 0);
4062                         if ((r_value & MIU_TA_CTL_BUSY) == 0)
4063                                 break;
4064                 }
4065
4066                 if (j >= MAX_CTL_CHECK) {
4067                         printk_ratelimited(KERN_ERR
4068                             "failed to read through agent\n");
4069                         write_unlock_irqrestore(&ha->hw_lock, flags);
4070                         return rval;
4071                 }
4072
4073                 for (j = 0; j < 4; j++) {
4074                         r_data = qla82xx_md_rw_32(ha,
4075                             MD_MIU_TEST_AGT_RDDATA[j], 0, 0);
4076                         *data_ptr++ = cpu_to_le32(r_data);
4077                 }
4078                 r_addr += 16;
4079         }
4080         write_unlock_irqrestore(&ha->hw_lock, flags);
4081         *d_ptr = data_ptr;
4082         return QLA_SUCCESS;
4083 }
4084
4085 int
4086 qla82xx_validate_template_chksum(scsi_qla_host_t *vha)
4087 {
4088         struct qla_hw_data *ha = vha->hw;
4089         uint64_t chksum = 0;
4090         uint32_t *d_ptr = (uint32_t *)ha->md_tmplt_hdr;
4091         int count = ha->md_template_size/sizeof(uint32_t);
4092
4093         while (count-- > 0)
4094                 chksum += *d_ptr++;
4095         while (chksum >> 32)
4096                 chksum = (chksum & 0xFFFFFFFF) + (chksum >> 32);
4097         return ~chksum;
4098 }
4099
4100 static void
4101 qla82xx_mark_entry_skipped(scsi_qla_host_t *vha,
4102         qla82xx_md_entry_hdr_t *entry_hdr, int index)
4103 {
4104         entry_hdr->d_ctrl.driver_flags |= QLA82XX_DBG_SKIPPED_FLAG;
4105         ql_dbg(ql_dbg_p3p, vha, 0xb036,
4106             "Skipping entry[%d]: "
4107             "ETYPE[0x%x]-ELEVEL[0x%x]\n",
4108             index, entry_hdr->entry_type,
4109             entry_hdr->d_ctrl.entry_capture_mask);
4110 }
4111
4112 int
4113 qla82xx_md_collect(scsi_qla_host_t *vha)
4114 {
4115         struct qla_hw_data *ha = vha->hw;
4116         int no_entry_hdr = 0;
4117         qla82xx_md_entry_hdr_t *entry_hdr;
4118         struct qla82xx_md_template_hdr *tmplt_hdr;
4119         __le32 *data_ptr;
4120         uint32_t total_data_size = 0, f_capture_mask, data_collected = 0;
4121         int i = 0, rval = QLA_FUNCTION_FAILED;
4122
4123         tmplt_hdr = (struct qla82xx_md_template_hdr *)ha->md_tmplt_hdr;
4124         data_ptr = ha->md_dump;
4125
4126         if (ha->fw_dumped) {
4127                 ql_log(ql_log_warn, vha, 0xb037,
4128                     "Firmware has been previously dumped (%p) "
4129                     "-- ignoring request.\n", ha->fw_dump);
4130                 goto md_failed;
4131         }
4132
4133         ha->fw_dumped = false;
4134
4135         if (!ha->md_tmplt_hdr || !ha->md_dump) {
4136                 ql_log(ql_log_warn, vha, 0xb038,
4137                     "Memory not allocated for minidump capture\n");
4138                 goto md_failed;
4139         }
4140
4141         if (ha->flags.isp82xx_no_md_cap) {
4142                 ql_log(ql_log_warn, vha, 0xb054,
4143                     "Forced reset from application, "
4144                     "ignore minidump capture\n");
4145                 ha->flags.isp82xx_no_md_cap = 0;
4146                 goto md_failed;
4147         }
4148
4149         if (qla82xx_validate_template_chksum(vha)) {
4150                 ql_log(ql_log_info, vha, 0xb039,
4151                     "Template checksum validation error\n");
4152                 goto md_failed;
4153         }
4154
4155         no_entry_hdr = tmplt_hdr->num_of_entries;
4156         ql_dbg(ql_dbg_p3p, vha, 0xb03a,
4157             "No of entry headers in Template: 0x%x\n", no_entry_hdr);
4158
4159         ql_dbg(ql_dbg_p3p, vha, 0xb03b,
4160             "Capture Mask obtained: 0x%x\n", tmplt_hdr->capture_debug_level);
4161
4162         f_capture_mask = tmplt_hdr->capture_debug_level & 0xFF;
4163
4164         /* Validate whether required debug level is set */
4165         if ((f_capture_mask & 0x3) != 0x3) {
4166                 ql_log(ql_log_warn, vha, 0xb03c,
4167                     "Minimum required capture mask[0x%x] level not set\n",
4168                     f_capture_mask);
4169                 goto md_failed;
4170         }
4171         tmplt_hdr->driver_capture_mask = ql2xmdcapmask;
4172
4173         tmplt_hdr->driver_info[0] = vha->host_no;
4174         tmplt_hdr->driver_info[1] = (QLA_DRIVER_MAJOR_VER << 24) |
4175             (QLA_DRIVER_MINOR_VER << 16) | (QLA_DRIVER_PATCH_VER << 8) |
4176             QLA_DRIVER_BETA_VER;
4177
4178         total_data_size = ha->md_dump_size;
4179
4180         ql_dbg(ql_dbg_p3p, vha, 0xb03d,
4181             "Total minidump data_size 0x%x to be captured\n", total_data_size);
4182
4183         /* Check whether template obtained is valid */
4184         if (tmplt_hdr->entry_type != QLA82XX_TLHDR) {
4185                 ql_log(ql_log_warn, vha, 0xb04e,
4186                     "Bad template header entry type: 0x%x obtained\n",
4187                     tmplt_hdr->entry_type);
4188                 goto md_failed;
4189         }
4190
4191         entry_hdr = (qla82xx_md_entry_hdr_t *)
4192             (((uint8_t *)ha->md_tmplt_hdr) + tmplt_hdr->first_entry_offset);
4193
4194         /* Walk through the entry headers */
4195         for (i = 0; i < no_entry_hdr; i++) {
4196
4197                 if (data_collected > total_data_size) {
4198                         ql_log(ql_log_warn, vha, 0xb03e,
4199                             "More MiniDump data collected: [0x%x]\n",
4200                             data_collected);
4201                         goto md_failed;
4202                 }
4203
4204                 if (!(entry_hdr->d_ctrl.entry_capture_mask &
4205                     ql2xmdcapmask)) {
4206                         entry_hdr->d_ctrl.driver_flags |=
4207                             QLA82XX_DBG_SKIPPED_FLAG;
4208                         ql_dbg(ql_dbg_p3p, vha, 0xb03f,
4209                             "Skipping entry[%d]: "
4210                             "ETYPE[0x%x]-ELEVEL[0x%x]\n",
4211                             i, entry_hdr->entry_type,
4212                             entry_hdr->d_ctrl.entry_capture_mask);
4213                         goto skip_nxt_entry;
4214                 }
4215
4216                 ql_dbg(ql_dbg_p3p, vha, 0xb040,
4217                     "[%s]: data ptr[%d]: %p, entry_hdr: %p\n"
4218                     "entry_type: 0x%x, capture_mask: 0x%x\n",
4219                     __func__, i, data_ptr, entry_hdr,
4220                     entry_hdr->entry_type,
4221                     entry_hdr->d_ctrl.entry_capture_mask);
4222
4223                 ql_dbg(ql_dbg_p3p, vha, 0xb041,
4224                     "Data collected: [0x%x], Dump size left:[0x%x]\n",
4225                     data_collected, (ha->md_dump_size - data_collected));
4226
4227                 /* Decode the entry type and take
4228                  * required action to capture debug data */
4229                 switch (entry_hdr->entry_type) {
4230                 case QLA82XX_RDEND:
4231                         qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4232                         break;
4233                 case QLA82XX_CNTRL:
4234                         rval = qla82xx_minidump_process_control(vha,
4235                             entry_hdr, &data_ptr);
4236                         if (rval != QLA_SUCCESS) {
4237                                 qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4238                                 goto md_failed;
4239                         }
4240                         break;
4241                 case QLA82XX_RDCRB:
4242                         qla82xx_minidump_process_rdcrb(vha,
4243                             entry_hdr, &data_ptr);
4244                         break;
4245                 case QLA82XX_RDMEM:
4246                         rval = qla82xx_minidump_process_rdmem(vha,
4247                             entry_hdr, &data_ptr);
4248                         if (rval != QLA_SUCCESS) {
4249                                 qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4250                                 goto md_failed;
4251                         }
4252                         break;
4253                 case QLA82XX_BOARD:
4254                 case QLA82XX_RDROM:
4255                         qla82xx_minidump_process_rdrom(vha,
4256                             entry_hdr, &data_ptr);
4257                         break;
4258                 case QLA82XX_L2DTG:
4259                 case QLA82XX_L2ITG:
4260                 case QLA82XX_L2DAT:
4261                 case QLA82XX_L2INS:
4262                         rval = qla82xx_minidump_process_l2tag(vha,
4263                             entry_hdr, &data_ptr);
4264                         if (rval != QLA_SUCCESS) {
4265                                 qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4266                                 goto md_failed;
4267                         }
4268                         break;
4269                 case QLA82XX_L1DAT:
4270                 case QLA82XX_L1INS:
4271                         qla82xx_minidump_process_l1cache(vha,
4272                             entry_hdr, &data_ptr);
4273                         break;
4274                 case QLA82XX_RDOCM:
4275                         qla82xx_minidump_process_rdocm(vha,
4276                             entry_hdr, &data_ptr);
4277                         break;
4278                 case QLA82XX_RDMUX:
4279                         qla82xx_minidump_process_rdmux(vha,
4280                             entry_hdr, &data_ptr);
4281                         break;
4282                 case QLA82XX_QUEUE:
4283                         qla82xx_minidump_process_queue(vha,
4284                             entry_hdr, &data_ptr);
4285                         break;
4286                 case QLA82XX_RDNOP:
4287                 default:
4288                         qla82xx_mark_entry_skipped(vha, entry_hdr, i);
4289                         break;
4290                 }
4291
4292                 ql_dbg(ql_dbg_p3p, vha, 0xb042,
4293                     "[%s]: data ptr[%d]: %p\n", __func__, i, data_ptr);
4294
4295                 data_collected = (uint8_t *)data_ptr -
4296                     (uint8_t *)ha->md_dump;
4297 skip_nxt_entry:
4298                 entry_hdr = (qla82xx_md_entry_hdr_t *)
4299                     (((uint8_t *)entry_hdr) + entry_hdr->entry_size);
4300         }
4301
4302         if (data_collected != total_data_size) {
4303                 ql_dbg(ql_dbg_p3p, vha, 0xb043,
4304                     "MiniDump data mismatch: Data collected: [0x%x],"
4305                     "total_data_size:[0x%x]\n",
4306                     data_collected, total_data_size);
4307                 goto md_failed;
4308         }
4309
4310         ql_log(ql_log_info, vha, 0xb044,
4311             "Firmware dump saved to temp buffer (%ld/%p %ld/%p).\n",
4312             vha->host_no, ha->md_tmplt_hdr, vha->host_no, ha->md_dump);
4313         ha->fw_dumped = true;
4314         qla2x00_post_uevent_work(vha, QLA_UEVENT_CODE_FW_DUMP);
4315
4316 md_failed:
4317         return rval;
4318 }
4319
4320 int
4321 qla82xx_md_alloc(scsi_qla_host_t *vha)
4322 {
4323         struct qla_hw_data *ha = vha->hw;
4324         int i, k;
4325         struct qla82xx_md_template_hdr *tmplt_hdr;
4326
4327         tmplt_hdr = (struct qla82xx_md_template_hdr *)ha->md_tmplt_hdr;
4328
4329         if (ql2xmdcapmask < 0x3 || ql2xmdcapmask > 0x7F) {
4330                 ql2xmdcapmask = tmplt_hdr->capture_debug_level & 0xFF;
4331                 ql_log(ql_log_info, vha, 0xb045,
4332                     "Forcing driver capture mask to firmware default capture mask: 0x%x.\n",
4333                     ql2xmdcapmask);
4334         }
4335
4336         for (i = 0x2, k = 1; (i & QLA82XX_DEFAULT_CAP_MASK); i <<= 1, k++) {
4337                 if (i & ql2xmdcapmask)
4338                         ha->md_dump_size += tmplt_hdr->capture_size_array[k];
4339         }
4340
4341         if (ha->md_dump) {
4342                 ql_log(ql_log_warn, vha, 0xb046,
4343                     "Firmware dump previously allocated.\n");
4344                 return 1;
4345         }
4346
4347         ha->md_dump = vmalloc(ha->md_dump_size);
4348         if (ha->md_dump == NULL) {
4349                 ql_log(ql_log_warn, vha, 0xb047,
4350                     "Unable to allocate memory for Minidump size "
4351                     "(0x%x).\n", ha->md_dump_size);
4352                 return 1;
4353         }
4354         return 0;
4355 }
4356
4357 void
4358 qla82xx_md_free(scsi_qla_host_t *vha)
4359 {
4360         struct qla_hw_data *ha = vha->hw;
4361
4362         /* Release the template header allocated */
4363         if (ha->md_tmplt_hdr) {
4364                 ql_log(ql_log_info, vha, 0xb048,
4365                     "Free MiniDump template: %p, size (%d KB)\n",
4366                     ha->md_tmplt_hdr, ha->md_template_size / 1024);
4367                 dma_free_coherent(&ha->pdev->dev, ha->md_template_size,
4368                     ha->md_tmplt_hdr, ha->md_tmplt_hdr_dma);
4369                 ha->md_tmplt_hdr = NULL;
4370         }
4371
4372         /* Release the template data buffer allocated */
4373         if (ha->md_dump) {
4374                 ql_log(ql_log_info, vha, 0xb049,
4375                     "Free MiniDump memory: %p, size (%d KB)\n",
4376                     ha->md_dump, ha->md_dump_size / 1024);
4377                 vfree(ha->md_dump);
4378                 ha->md_dump_size = 0;
4379                 ha->md_dump = NULL;
4380         }
4381 }
4382
4383 void
4384 qla82xx_md_prep(scsi_qla_host_t *vha)
4385 {
4386         struct qla_hw_data *ha = vha->hw;
4387         int rval;
4388
4389         /* Get Minidump template size */
4390         rval = qla82xx_md_get_template_size(vha);
4391         if (rval == QLA_SUCCESS) {
4392                 ql_log(ql_log_info, vha, 0xb04a,
4393                     "MiniDump Template size obtained (%d KB)\n",
4394                     ha->md_template_size / 1024);
4395
4396                 /* Get Minidump template */
4397                 if (IS_QLA8044(ha))
4398                         rval = qla8044_md_get_template(vha);
4399                 else
4400                         rval = qla82xx_md_get_template(vha);
4401
4402                 if (rval == QLA_SUCCESS) {
4403                         ql_dbg(ql_dbg_p3p, vha, 0xb04b,
4404                             "MiniDump Template obtained\n");
4405
4406                         /* Allocate memory for minidump */
4407                         rval = qla82xx_md_alloc(vha);
4408                         if (rval == QLA_SUCCESS)
4409                                 ql_log(ql_log_info, vha, 0xb04c,
4410                                     "MiniDump memory allocated (%d KB)\n",
4411                                     ha->md_dump_size / 1024);
4412                         else {
4413                                 ql_log(ql_log_info, vha, 0xb04d,
4414                                     "Free MiniDump template: %p, size: (%d KB)\n",
4415                                     ha->md_tmplt_hdr,
4416                                     ha->md_template_size / 1024);
4417                                 dma_free_coherent(&ha->pdev->dev,
4418                                     ha->md_template_size,
4419                                     ha->md_tmplt_hdr, ha->md_tmplt_hdr_dma);
4420                                 ha->md_tmplt_hdr = NULL;
4421                         }
4422
4423                 }
4424         }
4425 }
4426
4427 int
4428 qla82xx_beacon_on(struct scsi_qla_host *vha)
4429 {
4430
4431         int rval;
4432         struct qla_hw_data *ha = vha->hw;
4433
4434         qla82xx_idc_lock(ha);
4435         rval = qla82xx_mbx_beacon_ctl(vha, 1);
4436
4437         if (rval) {
4438                 ql_log(ql_log_warn, vha, 0xb050,
4439                     "mbx set led config failed in %s\n", __func__);
4440                 goto exit;
4441         }
4442         ha->beacon_blink_led = 1;
4443 exit:
4444         qla82xx_idc_unlock(ha);
4445         return rval;
4446 }
4447
4448 int
4449 qla82xx_beacon_off(struct scsi_qla_host *vha)
4450 {
4451
4452         int rval;
4453         struct qla_hw_data *ha = vha->hw;
4454
4455         qla82xx_idc_lock(ha);
4456         rval = qla82xx_mbx_beacon_ctl(vha, 0);
4457
4458         if (rval) {
4459                 ql_log(ql_log_warn, vha, 0xb051,
4460                     "mbx set led config failed in %s\n", __func__);
4461                 goto exit;
4462         }
4463         ha->beacon_blink_led = 0;
4464 exit:
4465         qla82xx_idc_unlock(ha);
4466         return rval;
4467 }
4468
4469 void
4470 qla82xx_fw_dump(scsi_qla_host_t *vha)
4471 {
4472         struct qla_hw_data *ha = vha->hw;
4473
4474         if (!ha->allow_cna_fw_dump)
4475                 return;
4476
4477         scsi_block_requests(vha->host);
4478         ha->flags.isp82xx_no_md_cap = 1;
4479         qla82xx_idc_lock(ha);
4480         qla82xx_set_reset_owner(vha);
4481         qla82xx_idc_unlock(ha);
4482         qla2x00_wait_for_chip_reset(vha);
4483         scsi_unblock_requests(vha->host);
4484 }