linux/drivers/scsi/qla4xxx/ql4_nx.c
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   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * QLogic iSCSI HBA Driver
   4 * Copyright (c)  2003-2013 QLogic Corporation
   5 */
   6#include <linux/delay.h>
   7#include <linux/io.h>
   8#include <linux/pci.h>
   9#include <linux/ratelimit.h>
  10#include "ql4_def.h"
  11#include "ql4_glbl.h"
  12#include "ql4_inline.h"
  13
  14#include <linux/io-64-nonatomic-lo-hi.h>
  15
  16#define TIMEOUT_100_MS  100
  17#define MASK(n)         DMA_BIT_MASK(n)
  18#define MN_WIN(addr)    (((addr & 0x1fc0000) >> 1) | ((addr >> 25) & 0x3ff))
  19#define OCM_WIN(addr)   (((addr & 0x1ff0000) >> 1) | ((addr >> 25) & 0x3ff))
  20#define MS_WIN(addr)    (addr & 0x0ffc0000)
  21#define QLA82XX_PCI_MN_2M       (0)
  22#define QLA82XX_PCI_MS_2M       (0x80000)
  23#define QLA82XX_PCI_OCM0_2M     (0xc0000)
  24#define VALID_OCM_ADDR(addr)    (((addr) & 0x3f800) != 0x3f800)
  25#define GET_MEM_OFFS_2M(addr)   (addr & MASK(18))
  26
  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 CRB_HI(off)     ((qla4_82xx_crb_hub_agt[CRB_BLK(off)] << 20) | \
  32                        ((off) & 0xf0000))
  33#define QLA82XX_PCI_CAMQM_2M_END        (0x04800800UL)
  34#define QLA82XX_PCI_CAMQM_2M_BASE       (0x000ff800UL)
  35#define CRB_INDIRECT_2M                 (0x1e0000UL)
  36
  37static inline void __iomem *
  38qla4_8xxx_pci_base_offsetfset(struct scsi_qla_host *ha, unsigned long off)
  39{
  40        if ((off < ha->first_page_group_end) &&
  41            (off >= ha->first_page_group_start))
  42                return (void __iomem *)(ha->nx_pcibase + off);
  43
  44        return NULL;
  45}
  46
  47static const int MD_MIU_TEST_AGT_RDDATA[] = { 0x410000A8,
  48                                0x410000AC, 0x410000B8, 0x410000BC };
  49#define MAX_CRB_XFORM 60
  50static unsigned long crb_addr_xform[MAX_CRB_XFORM];
  51static int qla4_8xxx_crb_table_initialized;
  52
  53#define qla4_8xxx_crb_addr_transform(name) \
  54        (crb_addr_xform[QLA82XX_HW_PX_MAP_CRB_##name] = \
  55         QLA82XX_HW_CRB_HUB_AGT_ADR_##name << 20)
  56static void
  57qla4_82xx_crb_addr_transform_setup(void)
  58{
  59        qla4_8xxx_crb_addr_transform(XDMA);
  60        qla4_8xxx_crb_addr_transform(TIMR);
  61        qla4_8xxx_crb_addr_transform(SRE);
  62        qla4_8xxx_crb_addr_transform(SQN3);
  63        qla4_8xxx_crb_addr_transform(SQN2);
  64        qla4_8xxx_crb_addr_transform(SQN1);
  65        qla4_8xxx_crb_addr_transform(SQN0);
  66        qla4_8xxx_crb_addr_transform(SQS3);
  67        qla4_8xxx_crb_addr_transform(SQS2);
  68        qla4_8xxx_crb_addr_transform(SQS1);
  69        qla4_8xxx_crb_addr_transform(SQS0);
  70        qla4_8xxx_crb_addr_transform(RPMX7);
  71        qla4_8xxx_crb_addr_transform(RPMX6);
  72        qla4_8xxx_crb_addr_transform(RPMX5);
  73        qla4_8xxx_crb_addr_transform(RPMX4);
  74        qla4_8xxx_crb_addr_transform(RPMX3);
  75        qla4_8xxx_crb_addr_transform(RPMX2);
  76        qla4_8xxx_crb_addr_transform(RPMX1);
  77        qla4_8xxx_crb_addr_transform(RPMX0);
  78        qla4_8xxx_crb_addr_transform(ROMUSB);
  79        qla4_8xxx_crb_addr_transform(SN);
  80        qla4_8xxx_crb_addr_transform(QMN);
  81        qla4_8xxx_crb_addr_transform(QMS);
  82        qla4_8xxx_crb_addr_transform(PGNI);
  83        qla4_8xxx_crb_addr_transform(PGND);
  84        qla4_8xxx_crb_addr_transform(PGN3);
  85        qla4_8xxx_crb_addr_transform(PGN2);
  86        qla4_8xxx_crb_addr_transform(PGN1);
  87        qla4_8xxx_crb_addr_transform(PGN0);
  88        qla4_8xxx_crb_addr_transform(PGSI);
  89        qla4_8xxx_crb_addr_transform(PGSD);
  90        qla4_8xxx_crb_addr_transform(PGS3);
  91        qla4_8xxx_crb_addr_transform(PGS2);
  92        qla4_8xxx_crb_addr_transform(PGS1);
  93        qla4_8xxx_crb_addr_transform(PGS0);
  94        qla4_8xxx_crb_addr_transform(PS);
  95        qla4_8xxx_crb_addr_transform(PH);
  96        qla4_8xxx_crb_addr_transform(NIU);
  97        qla4_8xxx_crb_addr_transform(I2Q);
  98        qla4_8xxx_crb_addr_transform(EG);
  99        qla4_8xxx_crb_addr_transform(MN);
 100        qla4_8xxx_crb_addr_transform(MS);
 101        qla4_8xxx_crb_addr_transform(CAS2);
 102        qla4_8xxx_crb_addr_transform(CAS1);
 103        qla4_8xxx_crb_addr_transform(CAS0);
 104        qla4_8xxx_crb_addr_transform(CAM);
 105        qla4_8xxx_crb_addr_transform(C2C1);
 106        qla4_8xxx_crb_addr_transform(C2C0);
 107        qla4_8xxx_crb_addr_transform(SMB);
 108        qla4_8xxx_crb_addr_transform(OCM0);
 109        qla4_8xxx_crb_addr_transform(I2C0);
 110
 111        qla4_8xxx_crb_table_initialized = 1;
 112}
 113
 114static struct crb_128M_2M_block_map crb_128M_2M_map[64] = {
 115        {{{0, 0,         0,         0} } },             /* 0: PCI */
 116        {{{1, 0x0100000, 0x0102000, 0x120000},  /* 1: PCIE */
 117                {1, 0x0110000, 0x0120000, 0x130000},
 118                {1, 0x0120000, 0x0122000, 0x124000},
 119                {1, 0x0130000, 0x0132000, 0x126000},
 120                {1, 0x0140000, 0x0142000, 0x128000},
 121                {1, 0x0150000, 0x0152000, 0x12a000},
 122                {1, 0x0160000, 0x0170000, 0x110000},
 123                {1, 0x0170000, 0x0172000, 0x12e000},
 124                {0, 0x0000000, 0x0000000, 0x000000},
 125                {0, 0x0000000, 0x0000000, 0x000000},
 126                {0, 0x0000000, 0x0000000, 0x000000},
 127                {0, 0x0000000, 0x0000000, 0x000000},
 128                {0, 0x0000000, 0x0000000, 0x000000},
 129                {0, 0x0000000, 0x0000000, 0x000000},
 130                {1, 0x01e0000, 0x01e0800, 0x122000},
 131                {0, 0x0000000, 0x0000000, 0x000000} } },
 132        {{{1, 0x0200000, 0x0210000, 0x180000} } },/* 2: MN */
 133        {{{0, 0,         0,         0} } },         /* 3: */
 134        {{{1, 0x0400000, 0x0401000, 0x169000} } },/* 4: P2NR1 */
 135        {{{1, 0x0500000, 0x0510000, 0x140000} } },/* 5: SRE   */
 136        {{{1, 0x0600000, 0x0610000, 0x1c0000} } },/* 6: NIU   */
 137        {{{1, 0x0700000, 0x0704000, 0x1b8000} } },/* 7: QM    */
 138        {{{1, 0x0800000, 0x0802000, 0x170000},  /* 8: SQM0  */
 139                {0, 0x0000000, 0x0000000, 0x000000},
 140                {0, 0x0000000, 0x0000000, 0x000000},
 141                {0, 0x0000000, 0x0000000, 0x000000},
 142                {0, 0x0000000, 0x0000000, 0x000000},
 143                {0, 0x0000000, 0x0000000, 0x000000},
 144                {0, 0x0000000, 0x0000000, 0x000000},
 145                {0, 0x0000000, 0x0000000, 0x000000},
 146                {0, 0x0000000, 0x0000000, 0x000000},
 147                {0, 0x0000000, 0x0000000, 0x000000},
 148                {0, 0x0000000, 0x0000000, 0x000000},
 149                {0, 0x0000000, 0x0000000, 0x000000},
 150                {0, 0x0000000, 0x0000000, 0x000000},
 151                {0, 0x0000000, 0x0000000, 0x000000},
 152                {0, 0x0000000, 0x0000000, 0x000000},
 153                {1, 0x08f0000, 0x08f2000, 0x172000} } },
 154        {{{1, 0x0900000, 0x0902000, 0x174000},  /* 9: SQM1*/
 155                {0, 0x0000000, 0x0000000, 0x000000},
 156                {0, 0x0000000, 0x0000000, 0x000000},
 157                {0, 0x0000000, 0x0000000, 0x000000},
 158                {0, 0x0000000, 0x0000000, 0x000000},
 159                {0, 0x0000000, 0x0000000, 0x000000},
 160                {0, 0x0000000, 0x0000000, 0x000000},
 161                {0, 0x0000000, 0x0000000, 0x000000},
 162                {0, 0x0000000, 0x0000000, 0x000000},
 163                {0, 0x0000000, 0x0000000, 0x000000},
 164                {0, 0x0000000, 0x0000000, 0x000000},
 165                {0, 0x0000000, 0x0000000, 0x000000},
 166                {0, 0x0000000, 0x0000000, 0x000000},
 167                {0, 0x0000000, 0x0000000, 0x000000},
 168                {0, 0x0000000, 0x0000000, 0x000000},
 169                {1, 0x09f0000, 0x09f2000, 0x176000} } },
 170        {{{0, 0x0a00000, 0x0a02000, 0x178000},  /* 10: SQM2*/
 171                {0, 0x0000000, 0x0000000, 0x000000},
 172                {0, 0x0000000, 0x0000000, 0x000000},
 173                {0, 0x0000000, 0x0000000, 0x000000},
 174                {0, 0x0000000, 0x0000000, 0x000000},
 175                {0, 0x0000000, 0x0000000, 0x000000},
 176                {0, 0x0000000, 0x0000000, 0x000000},
 177                {0, 0x0000000, 0x0000000, 0x000000},
 178                {0, 0x0000000, 0x0000000, 0x000000},
 179                {0, 0x0000000, 0x0000000, 0x000000},
 180                {0, 0x0000000, 0x0000000, 0x000000},
 181                {0, 0x0000000, 0x0000000, 0x000000},
 182                {0, 0x0000000, 0x0000000, 0x000000},
 183                {0, 0x0000000, 0x0000000, 0x000000},
 184                {0, 0x0000000, 0x0000000, 0x000000},
 185                {1, 0x0af0000, 0x0af2000, 0x17a000} } },
 186        {{{0, 0x0b00000, 0x0b02000, 0x17c000},  /* 11: SQM3*/
 187                {0, 0x0000000, 0x0000000, 0x000000},
 188                {0, 0x0000000, 0x0000000, 0x000000},
 189                {0, 0x0000000, 0x0000000, 0x000000},
 190                {0, 0x0000000, 0x0000000, 0x000000},
 191                {0, 0x0000000, 0x0000000, 0x000000},
 192                {0, 0x0000000, 0x0000000, 0x000000},
 193                {0, 0x0000000, 0x0000000, 0x000000},
 194                {0, 0x0000000, 0x0000000, 0x000000},
 195                {0, 0x0000000, 0x0000000, 0x000000},
 196                {0, 0x0000000, 0x0000000, 0x000000},
 197                {0, 0x0000000, 0x0000000, 0x000000},
 198                {0, 0x0000000, 0x0000000, 0x000000},
 199                {0, 0x0000000, 0x0000000, 0x000000},
 200                {0, 0x0000000, 0x0000000, 0x000000},
 201                {1, 0x0bf0000, 0x0bf2000, 0x17e000} } },
 202        {{{1, 0x0c00000, 0x0c04000, 0x1d4000} } },/* 12: I2Q */
 203        {{{1, 0x0d00000, 0x0d04000, 0x1a4000} } },/* 13: TMR */
 204        {{{1, 0x0e00000, 0x0e04000, 0x1a0000} } },/* 14: ROMUSB */
 205        {{{1, 0x0f00000, 0x0f01000, 0x164000} } },/* 15: PEG4 */
 206        {{{0, 0x1000000, 0x1004000, 0x1a8000} } },/* 16: XDMA */
 207        {{{1, 0x1100000, 0x1101000, 0x160000} } },/* 17: PEG0 */
 208        {{{1, 0x1200000, 0x1201000, 0x161000} } },/* 18: PEG1 */
 209        {{{1, 0x1300000, 0x1301000, 0x162000} } },/* 19: PEG2 */
 210        {{{1, 0x1400000, 0x1401000, 0x163000} } },/* 20: PEG3 */
 211        {{{1, 0x1500000, 0x1501000, 0x165000} } },/* 21: P2ND */
 212        {{{1, 0x1600000, 0x1601000, 0x166000} } },/* 22: P2NI */
 213        {{{0, 0,         0,         0} } },     /* 23: */
 214        {{{0, 0,         0,         0} } },     /* 24: */
 215        {{{0, 0,         0,         0} } },     /* 25: */
 216        {{{0, 0,         0,         0} } },     /* 26: */
 217        {{{0, 0,         0,         0} } },     /* 27: */
 218        {{{0, 0,         0,         0} } },     /* 28: */
 219        {{{1, 0x1d00000, 0x1d10000, 0x190000} } },/* 29: MS */
 220        {{{1, 0x1e00000, 0x1e01000, 0x16a000} } },/* 30: P2NR2 */
 221        {{{1, 0x1f00000, 0x1f10000, 0x150000} } },/* 31: EPG */
 222        {{{0} } },                              /* 32: PCI */
 223        {{{1, 0x2100000, 0x2102000, 0x120000},  /* 33: PCIE */
 224                {1, 0x2110000, 0x2120000, 0x130000},
 225                {1, 0x2120000, 0x2122000, 0x124000},
 226                {1, 0x2130000, 0x2132000, 0x126000},
 227                {1, 0x2140000, 0x2142000, 0x128000},
 228                {1, 0x2150000, 0x2152000, 0x12a000},
 229                {1, 0x2160000, 0x2170000, 0x110000},
 230                {1, 0x2170000, 0x2172000, 0x12e000},
 231                {0, 0x0000000, 0x0000000, 0x000000},
 232                {0, 0x0000000, 0x0000000, 0x000000},
 233                {0, 0x0000000, 0x0000000, 0x000000},
 234                {0, 0x0000000, 0x0000000, 0x000000},
 235                {0, 0x0000000, 0x0000000, 0x000000},
 236                {0, 0x0000000, 0x0000000, 0x000000},
 237                {0, 0x0000000, 0x0000000, 0x000000},
 238                {0, 0x0000000, 0x0000000, 0x000000} } },
 239        {{{1, 0x2200000, 0x2204000, 0x1b0000} } },/* 34: CAM */
 240        {{{0} } },                              /* 35: */
 241        {{{0} } },                              /* 36: */
 242        {{{0} } },                              /* 37: */
 243        {{{0} } },                              /* 38: */
 244        {{{0} } },                              /* 39: */
 245        {{{1, 0x2800000, 0x2804000, 0x1a4000} } },/* 40: TMR */
 246        {{{1, 0x2900000, 0x2901000, 0x16b000} } },/* 41: P2NR3 */
 247        {{{1, 0x2a00000, 0x2a00400, 0x1ac400} } },/* 42: RPMX1 */
 248        {{{1, 0x2b00000, 0x2b00400, 0x1ac800} } },/* 43: RPMX2 */
 249        {{{1, 0x2c00000, 0x2c00400, 0x1acc00} } },/* 44: RPMX3 */
 250        {{{1, 0x2d00000, 0x2d00400, 0x1ad000} } },/* 45: RPMX4 */
 251        {{{1, 0x2e00000, 0x2e00400, 0x1ad400} } },/* 46: RPMX5 */
 252        {{{1, 0x2f00000, 0x2f00400, 0x1ad800} } },/* 47: RPMX6 */
 253        {{{1, 0x3000000, 0x3000400, 0x1adc00} } },/* 48: RPMX7 */
 254        {{{0, 0x3100000, 0x3104000, 0x1a8000} } },/* 49: XDMA */
 255        {{{1, 0x3200000, 0x3204000, 0x1d4000} } },/* 50: I2Q */
 256        {{{1, 0x3300000, 0x3304000, 0x1a0000} } },/* 51: ROMUSB */
 257        {{{0} } },                              /* 52: */
 258        {{{1, 0x3500000, 0x3500400, 0x1ac000} } },/* 53: RPMX0 */
 259        {{{1, 0x3600000, 0x3600400, 0x1ae000} } },/* 54: RPMX8 */
 260        {{{1, 0x3700000, 0x3700400, 0x1ae400} } },/* 55: RPMX9 */
 261        {{{1, 0x3800000, 0x3804000, 0x1d0000} } },/* 56: OCM0 */
 262        {{{1, 0x3900000, 0x3904000, 0x1b4000} } },/* 57: CRYPTO */
 263        {{{1, 0x3a00000, 0x3a04000, 0x1d8000} } },/* 58: SMB */
 264        {{{0} } },                              /* 59: I2C0 */
 265        {{{0} } },                              /* 60: I2C1 */
 266        {{{1, 0x3d00000, 0x3d04000, 0x1dc000} } },/* 61: LPC */
 267        {{{1, 0x3e00000, 0x3e01000, 0x167000} } },/* 62: P2NC */
 268        {{{1, 0x3f00000, 0x3f01000, 0x168000} } }       /* 63: P2NR0 */
 269};
 270
 271/*
 272 * top 12 bits of crb internal address (hub, agent)
 273 */
 274static unsigned qla4_82xx_crb_hub_agt[64] = {
 275        0,
 276        QLA82XX_HW_CRB_HUB_AGT_ADR_PS,
 277        QLA82XX_HW_CRB_HUB_AGT_ADR_MN,
 278        QLA82XX_HW_CRB_HUB_AGT_ADR_MS,
 279        0,
 280        QLA82XX_HW_CRB_HUB_AGT_ADR_SRE,
 281        QLA82XX_HW_CRB_HUB_AGT_ADR_NIU,
 282        QLA82XX_HW_CRB_HUB_AGT_ADR_QMN,
 283        QLA82XX_HW_CRB_HUB_AGT_ADR_SQN0,
 284        QLA82XX_HW_CRB_HUB_AGT_ADR_SQN1,
 285        QLA82XX_HW_CRB_HUB_AGT_ADR_SQN2,
 286        QLA82XX_HW_CRB_HUB_AGT_ADR_SQN3,
 287        QLA82XX_HW_CRB_HUB_AGT_ADR_I2Q,
 288        QLA82XX_HW_CRB_HUB_AGT_ADR_TIMR,
 289        QLA82XX_HW_CRB_HUB_AGT_ADR_ROMUSB,
 290        QLA82XX_HW_CRB_HUB_AGT_ADR_PGN4,
 291        QLA82XX_HW_CRB_HUB_AGT_ADR_XDMA,
 292        QLA82XX_HW_CRB_HUB_AGT_ADR_PGN0,
 293        QLA82XX_HW_CRB_HUB_AGT_ADR_PGN1,
 294        QLA82XX_HW_CRB_HUB_AGT_ADR_PGN2,
 295        QLA82XX_HW_CRB_HUB_AGT_ADR_PGN3,
 296        QLA82XX_HW_CRB_HUB_AGT_ADR_PGND,
 297        QLA82XX_HW_CRB_HUB_AGT_ADR_PGNI,
 298        QLA82XX_HW_CRB_HUB_AGT_ADR_PGS0,
 299        QLA82XX_HW_CRB_HUB_AGT_ADR_PGS1,
 300        QLA82XX_HW_CRB_HUB_AGT_ADR_PGS2,
 301        QLA82XX_HW_CRB_HUB_AGT_ADR_PGS3,
 302        0,
 303        QLA82XX_HW_CRB_HUB_AGT_ADR_PGSI,
 304        QLA82XX_HW_CRB_HUB_AGT_ADR_SN,
 305        0,
 306        QLA82XX_HW_CRB_HUB_AGT_ADR_EG,
 307        0,
 308        QLA82XX_HW_CRB_HUB_AGT_ADR_PS,
 309        QLA82XX_HW_CRB_HUB_AGT_ADR_CAM,
 310        0,
 311        0,
 312        0,
 313        0,
 314        0,
 315        QLA82XX_HW_CRB_HUB_AGT_ADR_TIMR,
 316        0,
 317        QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX1,
 318        QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX2,
 319        QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX3,
 320        QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX4,
 321        QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX5,
 322        QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX6,
 323        QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX7,
 324        QLA82XX_HW_CRB_HUB_AGT_ADR_XDMA,
 325        QLA82XX_HW_CRB_HUB_AGT_ADR_I2Q,
 326        QLA82XX_HW_CRB_HUB_AGT_ADR_ROMUSB,
 327        0,
 328        QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX0,
 329        QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX8,
 330        QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX9,
 331        QLA82XX_HW_CRB_HUB_AGT_ADR_OCM0,
 332        0,
 333        QLA82XX_HW_CRB_HUB_AGT_ADR_SMB,
 334        QLA82XX_HW_CRB_HUB_AGT_ADR_I2C0,
 335        QLA82XX_HW_CRB_HUB_AGT_ADR_I2C1,
 336        0,
 337        QLA82XX_HW_CRB_HUB_AGT_ADR_PGNC,
 338        0,
 339};
 340
 341/* Device states */
 342static char *qdev_state[] = {
 343        "Unknown",
 344        "Cold",
 345        "Initializing",
 346        "Ready",
 347        "Need Reset",
 348        "Need Quiescent",
 349        "Failed",
 350        "Quiescent",
 351};
 352
 353/*
 354 * In: 'off' is offset from CRB space in 128M pci map
 355 * Out: 'off' is 2M pci map addr
 356 * side effect: lock crb window
 357 */
 358static void
 359qla4_82xx_pci_set_crbwindow_2M(struct scsi_qla_host *ha, ulong *off)
 360{
 361        u32 win_read;
 362
 363        ha->crb_win = CRB_HI(*off);
 364        writel(ha->crb_win,
 365                (void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase));
 366
 367        /* Read back value to make sure write has gone through before trying
 368        * to use it. */
 369        win_read = readl((void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase));
 370        if (win_read != ha->crb_win) {
 371                DEBUG2(ql4_printk(KERN_INFO, ha,
 372                    "%s: Written crbwin (0x%x) != Read crbwin (0x%x),"
 373                    " off=0x%lx\n", __func__, ha->crb_win, win_read, *off));
 374        }
 375        *off = (*off & MASK(16)) + CRB_INDIRECT_2M + ha->nx_pcibase;
 376}
 377
 378#define CRB_WIN_LOCK_TIMEOUT 100000000
 379
 380/*
 381 * Context: atomic
 382 */
 383static int qla4_82xx_crb_win_lock(struct scsi_qla_host *ha)
 384{
 385        int done = 0, timeout = 0;
 386
 387        while (!done) {
 388                /* acquire semaphore3 from PCI HW block */
 389                done = qla4_82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_LOCK));
 390                if (done == 1)
 391                        break;
 392                if (timeout >= CRB_WIN_LOCK_TIMEOUT)
 393                        return -1;
 394
 395                timeout++;
 396                udelay(10);
 397        }
 398        qla4_82xx_wr_32(ha, QLA82XX_CRB_WIN_LOCK_ID, ha->func_num);
 399        return 0;
 400}
 401
 402void qla4_82xx_crb_win_unlock(struct scsi_qla_host *ha)
 403{
 404        qla4_82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_UNLOCK));
 405}
 406
 407void
 408qla4_82xx_wr_32(struct scsi_qla_host *ha, ulong off, u32 data)
 409{
 410        unsigned long flags = 0;
 411        int rv;
 412
 413        rv = qla4_82xx_pci_get_crb_addr_2M(ha, &off);
 414
 415        BUG_ON(rv == -1);
 416
 417        if (rv == 1) {
 418                write_lock_irqsave(&ha->hw_lock, flags);
 419                qla4_82xx_crb_win_lock(ha);
 420                qla4_82xx_pci_set_crbwindow_2M(ha, &off);
 421        }
 422
 423        writel(data, (void __iomem *)off);
 424
 425        if (rv == 1) {
 426                qla4_82xx_crb_win_unlock(ha);
 427                write_unlock_irqrestore(&ha->hw_lock, flags);
 428        }
 429}
 430
 431uint32_t qla4_82xx_rd_32(struct scsi_qla_host *ha, ulong off)
 432{
 433        unsigned long flags = 0;
 434        int rv;
 435        u32 data;
 436
 437        rv = qla4_82xx_pci_get_crb_addr_2M(ha, &off);
 438
 439        BUG_ON(rv == -1);
 440
 441        if (rv == 1) {
 442                write_lock_irqsave(&ha->hw_lock, flags);
 443                qla4_82xx_crb_win_lock(ha);
 444                qla4_82xx_pci_set_crbwindow_2M(ha, &off);
 445        }
 446        data = readl((void __iomem *)off);
 447
 448        if (rv == 1) {
 449                qla4_82xx_crb_win_unlock(ha);
 450                write_unlock_irqrestore(&ha->hw_lock, flags);
 451        }
 452        return data;
 453}
 454
 455/* Minidump related functions */
 456int qla4_82xx_md_rd_32(struct scsi_qla_host *ha, uint32_t off, uint32_t *data)
 457{
 458        uint32_t win_read, off_value;
 459        int rval = QLA_SUCCESS;
 460
 461        off_value  = off & 0xFFFF0000;
 462        writel(off_value, (void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase));
 463
 464        /*
 465         * Read back value to make sure write has gone through before trying
 466         * to use it.
 467         */
 468        win_read = readl((void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase));
 469        if (win_read != off_value) {
 470                DEBUG2(ql4_printk(KERN_INFO, ha,
 471                                  "%s: Written (0x%x) != Read (0x%x), off=0x%x\n",
 472                                  __func__, off_value, win_read, off));
 473                rval = QLA_ERROR;
 474        } else {
 475                off_value  = off & 0x0000FFFF;
 476                *data = readl((void __iomem *)(off_value + CRB_INDIRECT_2M +
 477                                               ha->nx_pcibase));
 478        }
 479        return rval;
 480}
 481
 482int qla4_82xx_md_wr_32(struct scsi_qla_host *ha, uint32_t off, uint32_t data)
 483{
 484        uint32_t win_read, off_value;
 485        int rval = QLA_SUCCESS;
 486
 487        off_value  = off & 0xFFFF0000;
 488        writel(off_value, (void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase));
 489
 490        /* Read back value to make sure write has gone through before trying
 491         * to use it.
 492         */
 493        win_read = readl((void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase));
 494        if (win_read != off_value) {
 495                DEBUG2(ql4_printk(KERN_INFO, ha,
 496                                  "%s: Written (0x%x) != Read (0x%x), off=0x%x\n",
 497                                  __func__, off_value, win_read, off));
 498                rval = QLA_ERROR;
 499        } else {
 500                off_value  = off & 0x0000FFFF;
 501                writel(data, (void __iomem *)(off_value + CRB_INDIRECT_2M +
 502                                              ha->nx_pcibase));
 503        }
 504        return rval;
 505}
 506
 507#define IDC_LOCK_TIMEOUT 100000000
 508
 509/**
 510 * qla4_82xx_idc_lock - hw_lock
 511 * @ha: pointer to adapter structure
 512 *
 513 * General purpose lock used to synchronize access to
 514 * CRB_DEV_STATE, CRB_DEV_REF_COUNT, etc.
 515 *
 516 * Context: task, can sleep
 517 **/
 518int qla4_82xx_idc_lock(struct scsi_qla_host *ha)
 519{
 520        int done = 0, timeout = 0;
 521
 522        might_sleep();
 523
 524        while (!done) {
 525                /* acquire semaphore5 from PCI HW block */
 526                done = qla4_82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM5_LOCK));
 527                if (done == 1)
 528                        break;
 529                if (timeout >= IDC_LOCK_TIMEOUT)
 530                        return -1;
 531
 532                timeout++;
 533                msleep(100);
 534        }
 535        return 0;
 536}
 537
 538void qla4_82xx_idc_unlock(struct scsi_qla_host *ha)
 539{
 540        qla4_82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM5_UNLOCK));
 541}
 542
 543int
 544qla4_82xx_pci_get_crb_addr_2M(struct scsi_qla_host *ha, ulong *off)
 545{
 546        struct crb_128M_2M_sub_block_map *m;
 547
 548        if (*off >= QLA82XX_CRB_MAX)
 549                return -1;
 550
 551        if (*off >= QLA82XX_PCI_CAMQM && (*off < QLA82XX_PCI_CAMQM_2M_END)) {
 552                *off = (*off - QLA82XX_PCI_CAMQM) +
 553                    QLA82XX_PCI_CAMQM_2M_BASE + ha->nx_pcibase;
 554                return 0;
 555        }
 556
 557        if (*off < QLA82XX_PCI_CRBSPACE)
 558                return -1;
 559
 560        *off -= QLA82XX_PCI_CRBSPACE;
 561        /*
 562         * Try direct map
 563         */
 564
 565        m = &crb_128M_2M_map[CRB_BLK(*off)].sub_block[CRB_SUBBLK(*off)];
 566
 567        if (m->valid && (m->start_128M <= *off) && (m->end_128M > *off)) {
 568                *off = *off + m->start_2M - m->start_128M + ha->nx_pcibase;
 569                return 0;
 570        }
 571
 572        /*
 573         * Not in direct map, use crb window
 574         */
 575        return 1;
 576}
 577
 578/*
 579* check memory access boundary.
 580* used by test agent. support ddr access only for now
 581*/
 582static unsigned long
 583qla4_82xx_pci_mem_bound_check(struct scsi_qla_host *ha,
 584                unsigned long long addr, int size)
 585{
 586        if (!QLA8XXX_ADDR_IN_RANGE(addr, QLA8XXX_ADDR_DDR_NET,
 587            QLA8XXX_ADDR_DDR_NET_MAX) ||
 588            !QLA8XXX_ADDR_IN_RANGE(addr + size - 1,
 589            QLA8XXX_ADDR_DDR_NET, QLA8XXX_ADDR_DDR_NET_MAX) ||
 590            ((size != 1) && (size != 2) && (size != 4) && (size != 8))) {
 591                return 0;
 592        }
 593        return 1;
 594}
 595
 596static int qla4_82xx_pci_set_window_warning_count;
 597
 598static unsigned long
 599qla4_82xx_pci_set_window(struct scsi_qla_host *ha, unsigned long long addr)
 600{
 601        int window;
 602        u32 win_read;
 603
 604        if (QLA8XXX_ADDR_IN_RANGE(addr, QLA8XXX_ADDR_DDR_NET,
 605            QLA8XXX_ADDR_DDR_NET_MAX)) {
 606                /* DDR network side */
 607                window = MN_WIN(addr);
 608                ha->ddr_mn_window = window;
 609                qla4_82xx_wr_32(ha, ha->mn_win_crb |
 610                    QLA82XX_PCI_CRBSPACE, window);
 611                win_read = qla4_82xx_rd_32(ha, ha->mn_win_crb |
 612                    QLA82XX_PCI_CRBSPACE);
 613                if ((win_read << 17) != window) {
 614                        ql4_printk(KERN_WARNING, ha,
 615                        "%s: Written MNwin (0x%x) != Read MNwin (0x%x)\n",
 616                        __func__, window, win_read);
 617                }
 618                addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_DDR_NET;
 619        } else if (QLA8XXX_ADDR_IN_RANGE(addr, QLA8XXX_ADDR_OCM0,
 620                                QLA8XXX_ADDR_OCM0_MAX)) {
 621                unsigned int temp1;
 622                /* if bits 19:18&17:11 are on */
 623                if ((addr & 0x00ff800) == 0xff800) {
 624                        printk("%s: QM access not handled.\n", __func__);
 625                        addr = -1UL;
 626                }
 627
 628                window = OCM_WIN(addr);
 629                ha->ddr_mn_window = window;
 630                qla4_82xx_wr_32(ha, ha->mn_win_crb |
 631                    QLA82XX_PCI_CRBSPACE, window);
 632                win_read = qla4_82xx_rd_32(ha, ha->mn_win_crb |
 633                    QLA82XX_PCI_CRBSPACE);
 634                temp1 = ((window & 0x1FF) << 7) |
 635                    ((window & 0x0FFFE0000) >> 17);
 636                if (win_read != temp1) {
 637                        printk("%s: Written OCMwin (0x%x) != Read"
 638                            " OCMwin (0x%x)\n", __func__, temp1, win_read);
 639                }
 640                addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_OCM0_2M;
 641
 642        } else if (QLA8XXX_ADDR_IN_RANGE(addr, QLA8XXX_ADDR_QDR_NET,
 643                                QLA82XX_P3_ADDR_QDR_NET_MAX)) {
 644                /* QDR network side */
 645                window = MS_WIN(addr);
 646                ha->qdr_sn_window = window;
 647                qla4_82xx_wr_32(ha, ha->ms_win_crb |
 648                    QLA82XX_PCI_CRBSPACE, window);
 649                win_read = qla4_82xx_rd_32(ha,
 650                     ha->ms_win_crb | QLA82XX_PCI_CRBSPACE);
 651                if (win_read != window) {
 652                        printk("%s: Written MSwin (0x%x) != Read "
 653                            "MSwin (0x%x)\n", __func__, window, win_read);
 654                }
 655                addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_QDR_NET;
 656
 657        } else {
 658                /*
 659                 * peg gdb frequently accesses memory that doesn't exist,
 660                 * this limits the chit chat so debugging isn't slowed down.
 661                 */
 662                if ((qla4_82xx_pci_set_window_warning_count++ < 8) ||
 663                    (qla4_82xx_pci_set_window_warning_count%64 == 0)) {
 664                        printk("%s: Warning:%s Unknown address range!\n",
 665                            __func__, DRIVER_NAME);
 666                }
 667                addr = -1UL;
 668        }
 669        return addr;
 670}
 671
 672/* check if address is in the same windows as the previous access */
 673static int qla4_82xx_pci_is_same_window(struct scsi_qla_host *ha,
 674                unsigned long long addr)
 675{
 676        int window;
 677        unsigned long long qdr_max;
 678
 679        qdr_max = QLA82XX_P3_ADDR_QDR_NET_MAX;
 680
 681        if (QLA8XXX_ADDR_IN_RANGE(addr, QLA8XXX_ADDR_DDR_NET,
 682            QLA8XXX_ADDR_DDR_NET_MAX)) {
 683                /* DDR network side */
 684                BUG();  /* MN access can not come here */
 685        } else if (QLA8XXX_ADDR_IN_RANGE(addr, QLA8XXX_ADDR_OCM0,
 686             QLA8XXX_ADDR_OCM0_MAX)) {
 687                return 1;
 688        } else if (QLA8XXX_ADDR_IN_RANGE(addr, QLA8XXX_ADDR_OCM1,
 689             QLA8XXX_ADDR_OCM1_MAX)) {
 690                return 1;
 691        } else if (QLA8XXX_ADDR_IN_RANGE(addr, QLA8XXX_ADDR_QDR_NET,
 692            qdr_max)) {
 693                /* QDR network side */
 694                window = ((addr - QLA8XXX_ADDR_QDR_NET) >> 22) & 0x3f;
 695                if (ha->qdr_sn_window == window)
 696                        return 1;
 697        }
 698
 699        return 0;
 700}
 701
 702static int qla4_82xx_pci_mem_read_direct(struct scsi_qla_host *ha,
 703                u64 off, void *data, int size)
 704{
 705        unsigned long flags;
 706        void __iomem *addr;
 707        int ret = 0;
 708        u64 start;
 709        void __iomem *mem_ptr = NULL;
 710        unsigned long mem_base;
 711        unsigned long mem_page;
 712
 713        write_lock_irqsave(&ha->hw_lock, flags);
 714
 715        /*
 716         * If attempting to access unknown address or straddle hw windows,
 717         * do not access.
 718         */
 719        start = qla4_82xx_pci_set_window(ha, off);
 720        if ((start == -1UL) ||
 721            (qla4_82xx_pci_is_same_window(ha, off + size - 1) == 0)) {
 722                write_unlock_irqrestore(&ha->hw_lock, flags);
 723                printk(KERN_ERR"%s out of bound pci memory access. "
 724                                "offset is 0x%llx\n", DRIVER_NAME, off);
 725                return -1;
 726        }
 727
 728        addr = qla4_8xxx_pci_base_offsetfset(ha, start);
 729        if (!addr) {
 730                write_unlock_irqrestore(&ha->hw_lock, flags);
 731                mem_base = pci_resource_start(ha->pdev, 0);
 732                mem_page = start & PAGE_MASK;
 733                /* Map two pages whenever user tries to access addresses in two
 734                   consecutive pages.
 735                 */
 736                if (mem_page != ((start + size - 1) & PAGE_MASK))
 737                        mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE * 2);
 738                else
 739                        mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE);
 740
 741                if (mem_ptr == NULL) {
 742                        *(u8 *)data = 0;
 743                        return -1;
 744                }
 745                addr = mem_ptr;
 746                addr += start & (PAGE_SIZE - 1);
 747                write_lock_irqsave(&ha->hw_lock, flags);
 748        }
 749
 750        switch (size) {
 751        case 1:
 752                *(u8  *)data = readb(addr);
 753                break;
 754        case 2:
 755                *(u16 *)data = readw(addr);
 756                break;
 757        case 4:
 758                *(u32 *)data = readl(addr);
 759                break;
 760        case 8:
 761                *(u64 *)data = readq(addr);
 762                break;
 763        default:
 764                ret = -1;
 765                break;
 766        }
 767        write_unlock_irqrestore(&ha->hw_lock, flags);
 768
 769        if (mem_ptr)
 770                iounmap(mem_ptr);
 771        return ret;
 772}
 773
 774static int
 775qla4_82xx_pci_mem_write_direct(struct scsi_qla_host *ha, u64 off,
 776                void *data, int size)
 777{
 778        unsigned long flags;
 779        void __iomem *addr;
 780        int ret = 0;
 781        u64 start;
 782        void __iomem *mem_ptr = NULL;
 783        unsigned long mem_base;
 784        unsigned long mem_page;
 785
 786        write_lock_irqsave(&ha->hw_lock, flags);
 787
 788        /*
 789         * If attempting to access unknown address or straddle hw windows,
 790         * do not access.
 791         */
 792        start = qla4_82xx_pci_set_window(ha, off);
 793        if ((start == -1UL) ||
 794            (qla4_82xx_pci_is_same_window(ha, off + size - 1) == 0)) {
 795                write_unlock_irqrestore(&ha->hw_lock, flags);
 796                printk(KERN_ERR"%s out of bound pci memory access. "
 797                                "offset is 0x%llx\n", DRIVER_NAME, off);
 798                return -1;
 799        }
 800
 801        addr = qla4_8xxx_pci_base_offsetfset(ha, start);
 802        if (!addr) {
 803                write_unlock_irqrestore(&ha->hw_lock, flags);
 804                mem_base = pci_resource_start(ha->pdev, 0);
 805                mem_page = start & PAGE_MASK;
 806                /* Map two pages whenever user tries to access addresses in two
 807                   consecutive pages.
 808                 */
 809                if (mem_page != ((start + size - 1) & PAGE_MASK))
 810                        mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE*2);
 811                else
 812                        mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE);
 813                if (mem_ptr == NULL)
 814                        return -1;
 815
 816                addr = mem_ptr;
 817                addr += start & (PAGE_SIZE - 1);
 818                write_lock_irqsave(&ha->hw_lock, flags);
 819        }
 820
 821        switch (size) {
 822        case 1:
 823                writeb(*(u8 *)data, addr);
 824                break;
 825        case 2:
 826                writew(*(u16 *)data, addr);
 827                break;
 828        case 4:
 829                writel(*(u32 *)data, addr);
 830                break;
 831        case 8:
 832                writeq(*(u64 *)data, addr);
 833                break;
 834        default:
 835                ret = -1;
 836                break;
 837        }
 838        write_unlock_irqrestore(&ha->hw_lock, flags);
 839        if (mem_ptr)
 840                iounmap(mem_ptr);
 841        return ret;
 842}
 843
 844#define MTU_FUDGE_FACTOR 100
 845
 846static unsigned long
 847qla4_82xx_decode_crb_addr(unsigned long addr)
 848{
 849        int i;
 850        unsigned long base_addr, offset, pci_base;
 851
 852        if (!qla4_8xxx_crb_table_initialized)
 853                qla4_82xx_crb_addr_transform_setup();
 854
 855        pci_base = ADDR_ERROR;
 856        base_addr = addr & 0xfff00000;
 857        offset = addr & 0x000fffff;
 858
 859        for (i = 0; i < MAX_CRB_XFORM; i++) {
 860                if (crb_addr_xform[i] == base_addr) {
 861                        pci_base = i << 20;
 862                        break;
 863                }
 864        }
 865        if (pci_base == ADDR_ERROR)
 866                return pci_base;
 867        else
 868                return pci_base + offset;
 869}
 870
 871static long rom_max_timeout = 100;
 872static long qla4_82xx_rom_lock_timeout = 100;
 873
 874/*
 875 * Context: task, can_sleep
 876 */
 877static int
 878qla4_82xx_rom_lock(struct scsi_qla_host *ha)
 879{
 880        int done = 0, timeout = 0;
 881
 882        might_sleep();
 883
 884        while (!done) {
 885                /* acquire semaphore2 from PCI HW block */
 886                done = qla4_82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_LOCK));
 887                if (done == 1)
 888                        break;
 889                if (timeout >= qla4_82xx_rom_lock_timeout)
 890                        return -1;
 891
 892                timeout++;
 893                msleep(20);
 894        }
 895        qla4_82xx_wr_32(ha, QLA82XX_ROM_LOCK_ID, ROM_LOCK_DRIVER);
 896        return 0;
 897}
 898
 899static void
 900qla4_82xx_rom_unlock(struct scsi_qla_host *ha)
 901{
 902        qla4_82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_UNLOCK));
 903}
 904
 905static int
 906qla4_82xx_wait_rom_done(struct scsi_qla_host *ha)
 907{
 908        long timeout = 0;
 909        long done = 0 ;
 910
 911        while (done == 0) {
 912                done = qla4_82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_STATUS);
 913                done &= 2;
 914                timeout++;
 915                if (timeout >= rom_max_timeout) {
 916                        printk("%s: Timeout reached  waiting for rom done",
 917                                        DRIVER_NAME);
 918                        return -1;
 919                }
 920        }
 921        return 0;
 922}
 923
 924static int
 925qla4_82xx_do_rom_fast_read(struct scsi_qla_host *ha, int addr, int *valp)
 926{
 927        qla4_82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ADDRESS, addr);
 928        qla4_82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
 929        qla4_82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 3);
 930        qla4_82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, 0xb);
 931        if (qla4_82xx_wait_rom_done(ha)) {
 932                printk("%s: Error waiting for rom done\n", DRIVER_NAME);
 933                return -1;
 934        }
 935        /* reset abyte_cnt and dummy_byte_cnt */
 936        qla4_82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
 937        udelay(10);
 938        qla4_82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 0);
 939
 940        *valp = qla4_82xx_rd_32(ha, QLA82XX_ROMUSB_ROM_RDATA);
 941        return 0;
 942}
 943
 944static int
 945qla4_82xx_rom_fast_read(struct scsi_qla_host *ha, int addr, int *valp)
 946{
 947        int ret, loops = 0;
 948
 949        while ((qla4_82xx_rom_lock(ha) != 0) && (loops < 50000)) {
 950                udelay(100);
 951                loops++;
 952        }
 953        if (loops >= 50000) {
 954                ql4_printk(KERN_WARNING, ha, "%s: qla4_82xx_rom_lock failed\n",
 955                           DRIVER_NAME);
 956                return -1;
 957        }
 958        ret = qla4_82xx_do_rom_fast_read(ha, addr, valp);
 959        qla4_82xx_rom_unlock(ha);
 960        return ret;
 961}
 962
 963/*
 964 * This routine does CRB initialize sequence
 965 * to put the ISP into operational state
 966 */
 967static int
 968qla4_82xx_pinit_from_rom(struct scsi_qla_host *ha, int verbose)
 969{
 970        int addr, val;
 971        int i ;
 972        struct crb_addr_pair *buf;
 973        unsigned long off;
 974        unsigned offset, n;
 975
 976        struct crb_addr_pair {
 977                long addr;
 978                long data;
 979        };
 980
 981        /* Halt all the indiviual PEGs and other blocks of the ISP */
 982        qla4_82xx_rom_lock(ha);
 983
 984        /* disable all I2Q */
 985        qla4_82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x10, 0x0);
 986        qla4_82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x14, 0x0);
 987        qla4_82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x18, 0x0);
 988        qla4_82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x1c, 0x0);
 989        qla4_82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x20, 0x0);
 990        qla4_82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x24, 0x0);
 991
 992        /* disable all niu interrupts */
 993        qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x40, 0xff);
 994        /* disable xge rx/tx */
 995        qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x70000, 0x00);
 996        /* disable xg1 rx/tx */
 997        qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x80000, 0x00);
 998        /* disable sideband mac */
 999        qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x90000, 0x00);
1000        /* disable ap0 mac */
1001        qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0xa0000, 0x00);
1002        /* disable ap1 mac */
1003        qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0xb0000, 0x00);
1004
1005        /* halt sre */
1006        val = qla4_82xx_rd_32(ha, QLA82XX_CRB_SRE + 0x1000);
1007        qla4_82xx_wr_32(ha, QLA82XX_CRB_SRE + 0x1000, val & (~(0x1)));
1008
1009        /* halt epg */
1010        qla4_82xx_wr_32(ha, QLA82XX_CRB_EPG + 0x1300, 0x1);
1011
1012        /* halt timers */
1013        qla4_82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x0, 0x0);
1014        qla4_82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x8, 0x0);
1015        qla4_82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x10, 0x0);
1016        qla4_82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x18, 0x0);
1017        qla4_82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x100, 0x0);
1018        qla4_82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x200, 0x0);
1019
1020        /* halt pegs */
1021        qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x3c, 1);
1022        qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1 + 0x3c, 1);
1023        qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2 + 0x3c, 1);
1024        qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3 + 0x3c, 1);
1025        qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_4 + 0x3c, 1);
1026        msleep(5);
1027
1028        /* big hammer */
1029        if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
1030                /* don't reset CAM block on reset */
1031                qla4_82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xfeffffff);
1032        else
1033                qla4_82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xffffffff);
1034
1035        qla4_82xx_rom_unlock(ha);
1036
1037        /* Read the signature value from the flash.
1038         * Offset 0: Contain signature (0xcafecafe)
1039         * Offset 4: Offset and number of addr/value pairs
1040         * that present in CRB initialize sequence
1041         */
1042        if (qla4_82xx_rom_fast_read(ha, 0, &n) != 0 || n != 0xcafecafeUL ||
1043            qla4_82xx_rom_fast_read(ha, 4, &n) != 0) {
1044                ql4_printk(KERN_WARNING, ha,
1045                        "[ERROR] Reading crb_init area: n: %08x\n", n);
1046                return -1;
1047        }
1048
1049        /* Offset in flash = lower 16 bits
1050         * Number of enteries = upper 16 bits
1051         */
1052        offset = n & 0xffffU;
1053        n = (n >> 16) & 0xffffU;
1054
1055        /* number of addr/value pair should not exceed 1024 enteries */
1056        if (n  >= 1024) {
1057                ql4_printk(KERN_WARNING, ha,
1058                    "%s: %s:n=0x%x [ERROR] Card flash not initialized.\n",
1059                    DRIVER_NAME, __func__, n);
1060                return -1;
1061        }
1062
1063        ql4_printk(KERN_INFO, ha,
1064                "%s: %d CRB init values found in ROM.\n", DRIVER_NAME, n);
1065
1066        buf = kmalloc_array(n, sizeof(struct crb_addr_pair), GFP_KERNEL);
1067        if (buf == NULL) {
1068                ql4_printk(KERN_WARNING, ha,
1069                    "%s: [ERROR] Unable to malloc memory.\n", DRIVER_NAME);
1070                return -1;
1071        }
1072
1073        for (i = 0; i < n; i++) {
1074                if (qla4_82xx_rom_fast_read(ha, 8*i + 4*offset, &val) != 0 ||
1075                    qla4_82xx_rom_fast_read(ha, 8*i + 4*offset + 4, &addr) !=
1076                    0) {
1077                        kfree(buf);
1078                        return -1;
1079                }
1080
1081                buf[i].addr = addr;
1082                buf[i].data = val;
1083        }
1084
1085        for (i = 0; i < n; i++) {
1086                /* Translate internal CRB initialization
1087                 * address to PCI bus address
1088                 */
1089                off = qla4_82xx_decode_crb_addr((unsigned long)buf[i].addr) +
1090                    QLA82XX_PCI_CRBSPACE;
1091                /* Not all CRB  addr/value pair to be written,
1092                 * some of them are skipped
1093                 */
1094
1095                /* skip if LS bit is set*/
1096                if (off & 0x1) {
1097                        DEBUG2(ql4_printk(KERN_WARNING, ha,
1098                            "Skip CRB init replay for offset = 0x%lx\n", off));
1099                        continue;
1100                }
1101
1102                /* skipping cold reboot MAGIC */
1103                if (off == QLA82XX_CAM_RAM(0x1fc))
1104                        continue;
1105
1106                /* do not reset PCI */
1107                if (off == (ROMUSB_GLB + 0xbc))
1108                        continue;
1109
1110                /* skip core clock, so that firmware can increase the clock */
1111                if (off == (ROMUSB_GLB + 0xc8))
1112                        continue;
1113
1114                /* skip the function enable register */
1115                if (off == QLA82XX_PCIE_REG(PCIE_SETUP_FUNCTION))
1116                        continue;
1117
1118                if (off == QLA82XX_PCIE_REG(PCIE_SETUP_FUNCTION2))
1119                        continue;
1120
1121                if ((off & 0x0ff00000) == QLA82XX_CRB_SMB)
1122                        continue;
1123
1124                if ((off & 0x0ff00000) == QLA82XX_CRB_DDR_NET)
1125                        continue;
1126
1127                if (off == ADDR_ERROR) {
1128                        ql4_printk(KERN_WARNING, ha,
1129                            "%s: [ERROR] Unknown addr: 0x%08lx\n",
1130                            DRIVER_NAME, buf[i].addr);
1131                        continue;
1132                }
1133
1134                qla4_82xx_wr_32(ha, off, buf[i].data);
1135
1136                /* ISP requires much bigger delay to settle down,
1137                 * else crb_window returns 0xffffffff
1138                 */
1139                if (off == QLA82XX_ROMUSB_GLB_SW_RESET)
1140                        msleep(1000);
1141
1142                /* ISP requires millisec delay between
1143                 * successive CRB register updation
1144                 */
1145                msleep(1);
1146        }
1147
1148        kfree(buf);
1149
1150        /* Resetting the data and instruction cache */
1151        qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0xec, 0x1e);
1152        qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0x4c, 8);
1153        qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_I+0x4c, 8);
1154
1155        /* Clear all protocol processing engines */
1156        qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0x8, 0);
1157        qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0xc, 0);
1158        qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0x8, 0);
1159        qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0xc, 0);
1160        qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0x8, 0);
1161        qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0xc, 0);
1162        qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0x8, 0);
1163        qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0xc, 0);
1164
1165        return 0;
1166}
1167
1168/**
1169 * qla4_8xxx_ms_mem_write_128b - Writes data to MS/off-chip memory
1170 * @ha: Pointer to adapter structure
1171 * @addr: Flash address to write to
1172 * @data: Data to be written
1173 * @count: word_count to be written
1174 *
1175 * Return: On success return QLA_SUCCESS
1176 *         On error return QLA_ERROR
1177 **/
1178int qla4_8xxx_ms_mem_write_128b(struct scsi_qla_host *ha, uint64_t addr,
1179                                uint32_t *data, uint32_t count)
1180{
1181        int i, j;
1182        uint32_t agt_ctrl;
1183        unsigned long flags;
1184        int ret_val = QLA_SUCCESS;
1185
1186        /* Only 128-bit aligned access */
1187        if (addr & 0xF) {
1188                ret_val = QLA_ERROR;
1189                goto exit_ms_mem_write;
1190        }
1191
1192        write_lock_irqsave(&ha->hw_lock, flags);
1193
1194        /* Write address */
1195        ret_val = ha->isp_ops->wr_reg_indirect(ha, MD_MIU_TEST_AGT_ADDR_HI, 0);
1196        if (ret_val == QLA_ERROR) {
1197                ql4_printk(KERN_ERR, ha, "%s: write to AGT_ADDR_HI failed\n",
1198                           __func__);
1199                goto exit_ms_mem_write_unlock;
1200        }
1201
1202        for (i = 0; i < count; i++, addr += 16) {
1203                if (!((QLA8XXX_ADDR_IN_RANGE(addr, QLA8XXX_ADDR_QDR_NET,
1204                                             QLA8XXX_ADDR_QDR_NET_MAX)) ||
1205                      (QLA8XXX_ADDR_IN_RANGE(addr, QLA8XXX_ADDR_DDR_NET,
1206                                             QLA8XXX_ADDR_DDR_NET_MAX)))) {
1207                        ret_val = QLA_ERROR;
1208                        goto exit_ms_mem_write_unlock;
1209                }
1210
1211                ret_val = ha->isp_ops->wr_reg_indirect(ha,
1212                                                       MD_MIU_TEST_AGT_ADDR_LO,
1213                                                       addr);
1214                /* Write data */
1215                ret_val |= ha->isp_ops->wr_reg_indirect(ha,
1216                                                MD_MIU_TEST_AGT_WRDATA_LO,
1217                                                *data++);
1218                ret_val |= ha->isp_ops->wr_reg_indirect(ha,
1219                                                MD_MIU_TEST_AGT_WRDATA_HI,
1220                                                *data++);
1221                ret_val |= ha->isp_ops->wr_reg_indirect(ha,
1222                                                MD_MIU_TEST_AGT_WRDATA_ULO,
1223                                                *data++);
1224                ret_val |= ha->isp_ops->wr_reg_indirect(ha,
1225                                                MD_MIU_TEST_AGT_WRDATA_UHI,
1226                                                *data++);
1227                if (ret_val == QLA_ERROR) {
1228                        ql4_printk(KERN_ERR, ha, "%s: write to AGT_WRDATA failed\n",
1229                                   __func__);
1230                        goto exit_ms_mem_write_unlock;
1231                }
1232
1233                /* Check write status */
1234                ret_val = ha->isp_ops->wr_reg_indirect(ha, MD_MIU_TEST_AGT_CTRL,
1235                                                       MIU_TA_CTL_WRITE_ENABLE);
1236                ret_val |= ha->isp_ops->wr_reg_indirect(ha,
1237                                                        MD_MIU_TEST_AGT_CTRL,
1238                                                        MIU_TA_CTL_WRITE_START);
1239                if (ret_val == QLA_ERROR) {
1240                        ql4_printk(KERN_ERR, ha, "%s: write to AGT_CTRL failed\n",
1241                                   __func__);
1242                        goto exit_ms_mem_write_unlock;
1243                }
1244
1245                for (j = 0; j < MAX_CTL_CHECK; j++) {
1246                        ret_val = ha->isp_ops->rd_reg_indirect(ha,
1247                                                        MD_MIU_TEST_AGT_CTRL,
1248                                                        &agt_ctrl);
1249                        if (ret_val == QLA_ERROR) {
1250                                ql4_printk(KERN_ERR, ha, "%s: failed to read MD_MIU_TEST_AGT_CTRL\n",
1251                                           __func__);
1252                                goto exit_ms_mem_write_unlock;
1253                        }
1254                        if ((agt_ctrl & MIU_TA_CTL_BUSY) == 0)
1255                                break;
1256                }
1257
1258                /* Status check failed */
1259                if (j >= MAX_CTL_CHECK) {
1260                        printk_ratelimited(KERN_ERR "%s: MS memory write failed!\n",
1261                                           __func__);
1262                        ret_val = QLA_ERROR;
1263                        goto exit_ms_mem_write_unlock;
1264                }
1265        }
1266
1267exit_ms_mem_write_unlock:
1268        write_unlock_irqrestore(&ha->hw_lock, flags);
1269
1270exit_ms_mem_write:
1271        return ret_val;
1272}
1273
1274static int
1275qla4_82xx_load_from_flash(struct scsi_qla_host *ha, uint32_t image_start)
1276{
1277        int  i, rval = 0;
1278        long size = 0;
1279        long flashaddr, memaddr;
1280        u64 data;
1281        u32 high, low;
1282
1283        flashaddr = memaddr = ha->hw.flt_region_bootload;
1284        size = (image_start - flashaddr) / 8;
1285
1286        DEBUG2(printk("scsi%ld: %s: bootldr=0x%lx, fw_image=0x%x\n",
1287            ha->host_no, __func__, flashaddr, image_start));
1288
1289        for (i = 0; i < size; i++) {
1290                if ((qla4_82xx_rom_fast_read(ha, flashaddr, (int *)&low)) ||
1291                    (qla4_82xx_rom_fast_read(ha, flashaddr + 4,
1292                    (int *)&high))) {
1293                        rval = -1;
1294                        goto exit_load_from_flash;
1295                }
1296                data = ((u64)high << 32) | low ;
1297                rval = qla4_82xx_pci_mem_write_2M(ha, memaddr, &data, 8);
1298                if (rval)
1299                        goto exit_load_from_flash;
1300
1301                flashaddr += 8;
1302                memaddr   += 8;
1303
1304                if (i % 0x1000 == 0)
1305                        msleep(1);
1306
1307        }
1308
1309        udelay(100);
1310
1311        read_lock(&ha->hw_lock);
1312        qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x18, 0x1020);
1313        qla4_82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0x80001e);
1314        read_unlock(&ha->hw_lock);
1315
1316exit_load_from_flash:
1317        return rval;
1318}
1319
1320static int qla4_82xx_load_fw(struct scsi_qla_host *ha, uint32_t image_start)
1321{
1322        u32 rst;
1323
1324        qla4_82xx_wr_32(ha, CRB_CMDPEG_STATE, 0);
1325        if (qla4_82xx_pinit_from_rom(ha, 0) != QLA_SUCCESS) {
1326                printk(KERN_WARNING "%s: Error during CRB Initialization\n",
1327                    __func__);
1328                return QLA_ERROR;
1329        }
1330
1331        udelay(500);
1332
1333        /* at this point, QM is in reset. This could be a problem if there are
1334         * incoming d* transition queue messages. QM/PCIE could wedge.
1335         * To get around this, QM is brought out of reset.
1336         */
1337
1338        rst = qla4_82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET);
1339        /* unreset qm */
1340        rst &= ~(1 << 28);
1341        qla4_82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, rst);
1342
1343        if (qla4_82xx_load_from_flash(ha, image_start)) {
1344                printk("%s: Error trying to load fw from flash!\n", __func__);
1345                return QLA_ERROR;
1346        }
1347
1348        return QLA_SUCCESS;
1349}
1350
1351int
1352qla4_82xx_pci_mem_read_2M(struct scsi_qla_host *ha,
1353                u64 off, void *data, int size)
1354{
1355        int i, j = 0, k, start, end, loop, sz[2], off0[2];
1356        int shift_amount;
1357        uint32_t temp;
1358        uint64_t off8, val, mem_crb, word[2] = {0, 0};
1359
1360        /*
1361         * If not MN, go check for MS or invalid.
1362         */
1363
1364        if (off >= QLA8XXX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX)
1365                mem_crb = QLA82XX_CRB_QDR_NET;
1366        else {
1367                mem_crb = QLA82XX_CRB_DDR_NET;
1368                if (qla4_82xx_pci_mem_bound_check(ha, off, size) == 0)
1369                        return qla4_82xx_pci_mem_read_direct(ha,
1370                                        off, data, size);
1371        }
1372
1373
1374        off8 = off & 0xfffffff0;
1375        off0[0] = off & 0xf;
1376        sz[0] = (size < (16 - off0[0])) ? size : (16 - off0[0]);
1377        shift_amount = 4;
1378
1379        loop = ((off0[0] + size - 1) >> shift_amount) + 1;
1380        off0[1] = 0;
1381        sz[1] = size - sz[0];
1382
1383        for (i = 0; i < loop; i++) {
1384                temp = off8 + (i << shift_amount);
1385                qla4_82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_LO, temp);
1386                temp = 0;
1387                qla4_82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_HI, temp);
1388                temp = MIU_TA_CTL_ENABLE;
1389                qla4_82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1390                temp = MIU_TA_CTL_START_ENABLE;
1391                qla4_82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
1392
1393                for (j = 0; j < MAX_CTL_CHECK; j++) {
1394                        temp = qla4_82xx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL);
1395                        if ((temp & MIU_TA_CTL_BUSY) == 0)
1396                                break;
1397                }
1398
1399                if (j >= MAX_CTL_CHECK) {
1400                        printk_ratelimited(KERN_ERR
1401                                           "%s: failed to read through agent\n",
1402                                           __func__);
1403                        break;
1404                }
1405
1406                start = off0[i] >> 2;
1407                end   = (off0[i] + sz[i] - 1) >> 2;
1408                for (k = start; k <= end; k++) {
1409                        temp = qla4_82xx_rd_32(ha,
1410                                mem_crb + MIU_TEST_AGT_RDDATA(k));
1411                        word[i] |= ((uint64_t)temp << (32 * (k & 1)));
1412                }
1413        }
1414
1415        if (j >= MAX_CTL_CHECK)
1416                return -1;
1417
1418        if ((off0[0] & 7) == 0) {
1419                val = word[0];
1420        } else {
1421                val = ((word[0] >> (off0[0] * 8)) & (~(~0ULL << (sz[0] * 8)))) |
1422                ((word[1] & (~(~0ULL << (sz[1] * 8)))) << (sz[0] * 8));
1423        }
1424
1425        switch (size) {
1426        case 1:
1427                *(uint8_t  *)data = val;
1428                break;
1429        case 2:
1430                *(uint16_t *)data = val;
1431                break;
1432        case 4:
1433                *(uint32_t *)data = val;
1434                break;
1435        case 8:
1436                *(uint64_t *)data = val;
1437                break;
1438        }
1439        return 0;
1440}
1441
1442int
1443qla4_82xx_pci_mem_write_2M(struct scsi_qla_host *ha,
1444                u64 off, void *data, int size)
1445{
1446        int i, j, ret = 0, loop, sz[2], off0;
1447        int scale, shift_amount, startword;
1448        uint32_t temp;
1449        uint64_t off8, mem_crb, tmpw, word[2] = {0, 0};
1450
1451        /*
1452         * If not MN, go check for MS or invalid.
1453         */
1454        if (off >= QLA8XXX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX)
1455                mem_crb = QLA82XX_CRB_QDR_NET;
1456        else {
1457                mem_crb = QLA82XX_CRB_DDR_NET;
1458                if (qla4_82xx_pci_mem_bound_check(ha, off, size) == 0)
1459                        return qla4_82xx_pci_mem_write_direct(ha,
1460                                        off, data, size);
1461        }
1462
1463        off0 = off & 0x7;
1464        sz[0] = (size < (8 - off0)) ? size : (8 - off0);
1465        sz[1] = size - sz[0];
1466
1467        off8 = off & 0xfffffff0;
1468        loop = (((off & 0xf) + size - 1) >> 4) + 1;
1469        shift_amount = 4;
1470        scale = 2;
1471        startword = (off & 0xf)/8;
1472
1473        for (i = 0; i < loop; i++) {
1474                if (qla4_82xx_pci_mem_read_2M(ha, off8 +
1475                    (i << shift_amount), &word[i * scale], 8))
1476                        return -1;
1477        }
1478
1479        switch (size) {
1480        case 1:
1481                tmpw = *((uint8_t *)data);
1482                break;
1483        case 2:
1484                tmpw = *((uint16_t *)data);
1485                break;
1486        case 4:
1487                tmpw = *((uint32_t *)data);
1488                break;
1489        case 8:
1490        default:
1491                tmpw = *((uint64_t *)data);
1492                break;
1493        }
1494
1495        if (sz[0] == 8)
1496                word[startword] = tmpw;
1497        else {
1498                word[startword] &=
1499                    ~((~(~0ULL << (sz[0] * 8))) << (off0 * 8));
1500                word[startword] |= tmpw << (off0 * 8);
1501        }
1502
1503        if (sz[1] != 0) {
1504                word[startword+1] &= ~(~0ULL << (sz[1] * 8));
1505                word[startword+1] |= tmpw >> (sz[0] * 8);
1506        }
1507
1508        for (i = 0; i < loop; i++) {
1509                temp = off8 + (i << shift_amount);
1510                qla4_82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_LO, temp);
1511                temp = 0;
1512                qla4_82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_HI, temp);
1513                temp = word[i * scale] & 0xffffffff;
1514                qla4_82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_LO, temp);
1515                temp = (word[i * scale] >> 32) & 0xffffffff;
1516                qla4_82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_HI, temp);
1517                temp = word[i*scale + 1] & 0xffffffff;
1518                qla4_82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_WRDATA_UPPER_LO,
1519                    temp);
1520                temp = (word[i*scale + 1] >> 32) & 0xffffffff;
1521                qla4_82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_WRDATA_UPPER_HI,
1522                    temp);
1523
1524                temp = MIU_TA_CTL_WRITE_ENABLE;
1525                qla4_82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_CTRL, temp);
1526                temp = MIU_TA_CTL_WRITE_START;
1527                qla4_82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_CTRL, temp);
1528
1529                for (j = 0; j < MAX_CTL_CHECK; j++) {
1530                        temp = qla4_82xx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL);
1531                        if ((temp & MIU_TA_CTL_BUSY) == 0)
1532                                break;
1533                }
1534
1535                if (j >= MAX_CTL_CHECK) {
1536                        if (printk_ratelimit())
1537                                ql4_printk(KERN_ERR, ha,
1538                                           "%s: failed to read through agent\n",
1539                                           __func__);
1540                        ret = -1;
1541                        break;
1542                }
1543        }
1544
1545        return ret;
1546}
1547
1548static int qla4_82xx_cmdpeg_ready(struct scsi_qla_host *ha, int pegtune_val)
1549{
1550        u32 val = 0;
1551        int retries = 60;
1552
1553        if (!pegtune_val) {
1554                do {
1555                        val = qla4_82xx_rd_32(ha, CRB_CMDPEG_STATE);
1556                        if ((val == PHAN_INITIALIZE_COMPLETE) ||
1557                            (val == PHAN_INITIALIZE_ACK))
1558                                return 0;
1559                        set_current_state(TASK_UNINTERRUPTIBLE);
1560                        schedule_timeout(500);
1561
1562                } while (--retries);
1563
1564                if (!retries) {
1565                        pegtune_val = qla4_82xx_rd_32(ha,
1566                                QLA82XX_ROMUSB_GLB_PEGTUNE_DONE);
1567                        printk(KERN_WARNING "%s: init failed, "
1568                                "pegtune_val = %x\n", __func__, pegtune_val);
1569                        return -1;
1570                }
1571        }
1572        return 0;
1573}
1574
1575static int qla4_82xx_rcvpeg_ready(struct scsi_qla_host *ha)
1576{
1577        uint32_t state = 0;
1578        int loops = 0;
1579
1580        /* Window 1 call */
1581        read_lock(&ha->hw_lock);
1582        state = qla4_82xx_rd_32(ha, CRB_RCVPEG_STATE);
1583        read_unlock(&ha->hw_lock);
1584
1585        while ((state != PHAN_PEG_RCV_INITIALIZED) && (loops < 30000)) {
1586                udelay(100);
1587                /* Window 1 call */
1588                read_lock(&ha->hw_lock);
1589                state = qla4_82xx_rd_32(ha, CRB_RCVPEG_STATE);
1590                read_unlock(&ha->hw_lock);
1591
1592                loops++;
1593        }
1594
1595        if (loops >= 30000) {
1596                DEBUG2(ql4_printk(KERN_INFO, ha,
1597                    "Receive Peg initialization not complete: 0x%x.\n", state));
1598                return QLA_ERROR;
1599        }
1600
1601        return QLA_SUCCESS;
1602}
1603
1604void
1605qla4_8xxx_set_drv_active(struct scsi_qla_host *ha)
1606{
1607        uint32_t drv_active;
1608
1609        drv_active = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_ACTIVE);
1610
1611        /*
1612         * For ISP8324 and ISP8042, drv_active register has 1 bit per function,
1613         * shift 1 by func_num to set a bit for the function.
1614         * For ISP8022, drv_active has 4 bits per function
1615         */
1616        if (is_qla8032(ha) || is_qla8042(ha))
1617                drv_active |= (1 << ha->func_num);
1618        else
1619                drv_active |= (1 << (ha->func_num * 4));
1620
1621        ql4_printk(KERN_INFO, ha, "%s(%ld): drv_active: 0x%08x\n",
1622                   __func__, ha->host_no, drv_active);
1623        qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_ACTIVE, drv_active);
1624}
1625
1626void
1627qla4_8xxx_clear_drv_active(struct scsi_qla_host *ha)
1628{
1629        uint32_t drv_active;
1630
1631        drv_active = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_ACTIVE);
1632
1633        /*
1634         * For ISP8324 and ISP8042, drv_active register has 1 bit per function,
1635         * shift 1 by func_num to set a bit for the function.
1636         * For ISP8022, drv_active has 4 bits per function
1637         */
1638        if (is_qla8032(ha) || is_qla8042(ha))
1639                drv_active &= ~(1 << (ha->func_num));
1640        else
1641                drv_active &= ~(1 << (ha->func_num * 4));
1642
1643        ql4_printk(KERN_INFO, ha, "%s(%ld): drv_active: 0x%08x\n",
1644                   __func__, ha->host_no, drv_active);
1645        qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_ACTIVE, drv_active);
1646}
1647
1648inline int qla4_8xxx_need_reset(struct scsi_qla_host *ha)
1649{
1650        uint32_t drv_state, drv_active;
1651        int rval;
1652
1653        drv_active = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_ACTIVE);
1654        drv_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_STATE);
1655
1656        /*
1657         * For ISP8324 and ISP8042, drv_active register has 1 bit per function,
1658         * shift 1 by func_num to set a bit for the function.
1659         * For ISP8022, drv_active has 4 bits per function
1660         */
1661        if (is_qla8032(ha) || is_qla8042(ha))
1662                rval = drv_state & (1 << ha->func_num);
1663        else
1664                rval = drv_state & (1 << (ha->func_num * 4));
1665
1666        if ((test_bit(AF_EEH_BUSY, &ha->flags)) && drv_active)
1667                rval = 1;
1668
1669        return rval;
1670}
1671
1672void qla4_8xxx_set_rst_ready(struct scsi_qla_host *ha)
1673{
1674        uint32_t drv_state;
1675
1676        drv_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_STATE);
1677
1678        /*
1679         * For ISP8324 and ISP8042, drv_active register has 1 bit per function,
1680         * shift 1 by func_num to set a bit for the function.
1681         * For ISP8022, drv_active has 4 bits per function
1682         */
1683        if (is_qla8032(ha) || is_qla8042(ha))
1684                drv_state |= (1 << ha->func_num);
1685        else
1686                drv_state |= (1 << (ha->func_num * 4));
1687
1688        ql4_printk(KERN_INFO, ha, "%s(%ld): drv_state: 0x%08x\n",
1689                   __func__, ha->host_no, drv_state);
1690        qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_STATE, drv_state);
1691}
1692
1693void qla4_8xxx_clear_rst_ready(struct scsi_qla_host *ha)
1694{
1695        uint32_t drv_state;
1696
1697        drv_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_STATE);
1698
1699        /*
1700         * For ISP8324 and ISP8042, drv_active register has 1 bit per function,
1701         * shift 1 by func_num to set a bit for the function.
1702         * For ISP8022, drv_active has 4 bits per function
1703         */
1704        if (is_qla8032(ha) || is_qla8042(ha))
1705                drv_state &= ~(1 << ha->func_num);
1706        else
1707                drv_state &= ~(1 << (ha->func_num * 4));
1708
1709        ql4_printk(KERN_INFO, ha, "%s(%ld): drv_state: 0x%08x\n",
1710                   __func__, ha->host_no, drv_state);
1711        qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_STATE, drv_state);
1712}
1713
1714static inline void
1715qla4_8xxx_set_qsnt_ready(struct scsi_qla_host *ha)
1716{
1717        uint32_t qsnt_state;
1718
1719        qsnt_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_STATE);
1720
1721        /*
1722         * For ISP8324 and ISP8042, drv_active register has 1 bit per function,
1723         * shift 1 by func_num to set a bit for the function.
1724         * For ISP8022, drv_active has 4 bits per function.
1725         */
1726        if (is_qla8032(ha) || is_qla8042(ha))
1727                qsnt_state |= (1 << ha->func_num);
1728        else
1729                qsnt_state |= (2 << (ha->func_num * 4));
1730
1731        qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_STATE, qsnt_state);
1732}
1733
1734
1735static int
1736qla4_82xx_start_firmware(struct scsi_qla_host *ha, uint32_t image_start)
1737{
1738        uint16_t lnk;
1739
1740        /* scrub dma mask expansion register */
1741        qla4_82xx_wr_32(ha, CRB_DMA_SHIFT, 0x55555555);
1742
1743        /* Overwrite stale initialization register values */
1744        qla4_82xx_wr_32(ha, CRB_CMDPEG_STATE, 0);
1745        qla4_82xx_wr_32(ha, CRB_RCVPEG_STATE, 0);
1746        qla4_82xx_wr_32(ha, QLA82XX_PEG_HALT_STATUS1, 0);
1747        qla4_82xx_wr_32(ha, QLA82XX_PEG_HALT_STATUS2, 0);
1748
1749        if (qla4_82xx_load_fw(ha, image_start) != QLA_SUCCESS) {
1750                printk("%s: Error trying to start fw!\n", __func__);
1751                return QLA_ERROR;
1752        }
1753
1754        /* Handshake with the card before we register the devices. */
1755        if (qla4_82xx_cmdpeg_ready(ha, 0) != QLA_SUCCESS) {
1756                printk("%s: Error during card handshake!\n", __func__);
1757                return QLA_ERROR;
1758        }
1759
1760        /* Negotiated Link width */
1761        pcie_capability_read_word(ha->pdev, PCI_EXP_LNKSTA, &lnk);
1762        ha->link_width = (lnk >> 4) & 0x3f;
1763
1764        /* Synchronize with Receive peg */
1765        return qla4_82xx_rcvpeg_ready(ha);
1766}
1767
1768int qla4_82xx_try_start_fw(struct scsi_qla_host *ha)
1769{
1770        int rval;
1771
1772        /*
1773         * FW Load priority:
1774         * 1) Operational firmware residing in flash.
1775         * 2) Fail
1776         */
1777
1778        ql4_printk(KERN_INFO, ha,
1779            "FW: Retrieving flash offsets from FLT/FDT ...\n");
1780        rval = qla4_8xxx_get_flash_info(ha);
1781        if (rval != QLA_SUCCESS)
1782                return rval;
1783
1784        ql4_printk(KERN_INFO, ha,
1785            "FW: Attempting to load firmware from flash...\n");
1786        rval = qla4_82xx_start_firmware(ha, ha->hw.flt_region_fw);
1787
1788        if (rval != QLA_SUCCESS) {
1789                ql4_printk(KERN_ERR, ha, "FW: Load firmware from flash"
1790                    " FAILED...\n");
1791                return rval;
1792        }
1793
1794        return rval;
1795}
1796
1797void qla4_82xx_rom_lock_recovery(struct scsi_qla_host *ha)
1798{
1799        if (qla4_82xx_rom_lock(ha)) {
1800                /* Someone else is holding the lock. */
1801                dev_info(&ha->pdev->dev, "Resetting rom_lock\n");
1802        }
1803
1804        /*
1805         * Either we got the lock, or someone
1806         * else died while holding it.
1807         * In either case, unlock.
1808         */
1809        qla4_82xx_rom_unlock(ha);
1810}
1811
1812static uint32_t ql4_84xx_poll_wait_for_ready(struct scsi_qla_host *ha,
1813                                             uint32_t addr1, uint32_t mask)
1814{
1815        unsigned long timeout;
1816        uint32_t rval = QLA_SUCCESS;
1817        uint32_t temp;
1818
1819        timeout = jiffies + msecs_to_jiffies(TIMEOUT_100_MS);
1820        do {
1821                ha->isp_ops->rd_reg_indirect(ha, addr1, &temp);
1822                if ((temp & mask) != 0)
1823                        break;
1824
1825                if (time_after_eq(jiffies, timeout)) {
1826                        ql4_printk(KERN_INFO, ha, "Error in processing rdmdio entry\n");
1827                        return QLA_ERROR;
1828                }
1829        } while (1);
1830
1831        return rval;
1832}
1833
1834static uint32_t ql4_84xx_ipmdio_rd_reg(struct scsi_qla_host *ha, uint32_t addr1,
1835                                uint32_t addr3, uint32_t mask, uint32_t addr,
1836                                uint32_t *data_ptr)
1837{
1838        int rval = QLA_SUCCESS;
1839        uint32_t temp;
1840        uint32_t data;
1841
1842        rval = ql4_84xx_poll_wait_for_ready(ha, addr1, mask);
1843        if (rval)
1844                goto exit_ipmdio_rd_reg;
1845
1846        temp = (0x40000000 | addr);
1847        ha->isp_ops->wr_reg_indirect(ha, addr1, temp);
1848
1849        rval = ql4_84xx_poll_wait_for_ready(ha, addr1, mask);
1850        if (rval)
1851                goto exit_ipmdio_rd_reg;
1852
1853        ha->isp_ops->rd_reg_indirect(ha, addr3, &data);
1854        *data_ptr = data;
1855
1856exit_ipmdio_rd_reg:
1857        return rval;
1858}
1859
1860
1861static uint32_t ql4_84xx_poll_wait_ipmdio_bus_idle(struct scsi_qla_host *ha,
1862                                                    uint32_t addr1,
1863                                                    uint32_t addr2,
1864                                                    uint32_t addr3,
1865                                                    uint32_t mask)
1866{
1867        unsigned long timeout;
1868        uint32_t temp;
1869        uint32_t rval = QLA_SUCCESS;
1870
1871        timeout = jiffies + msecs_to_jiffies(TIMEOUT_100_MS);
1872        do {
1873                ql4_84xx_ipmdio_rd_reg(ha, addr1, addr3, mask, addr2, &temp);
1874                if ((temp & 0x1) != 1)
1875                        break;
1876                if (time_after_eq(jiffies, timeout)) {
1877                        ql4_printk(KERN_INFO, ha, "Error in processing mdiobus idle\n");
1878                        return QLA_ERROR;
1879                }
1880        } while (1);
1881
1882        return rval;
1883}
1884
1885static int ql4_84xx_ipmdio_wr_reg(struct scsi_qla_host *ha,
1886                                  uint32_t addr1, uint32_t addr3,
1887                                  uint32_t mask, uint32_t addr,
1888                                  uint32_t value)
1889{
1890        int rval = QLA_SUCCESS;
1891
1892        rval = ql4_84xx_poll_wait_for_ready(ha, addr1, mask);
1893        if (rval)
1894                goto exit_ipmdio_wr_reg;
1895
1896        ha->isp_ops->wr_reg_indirect(ha, addr3, value);
1897        ha->isp_ops->wr_reg_indirect(ha, addr1, addr);
1898
1899        rval = ql4_84xx_poll_wait_for_ready(ha, addr1, mask);
1900        if (rval)
1901                goto exit_ipmdio_wr_reg;
1902
1903exit_ipmdio_wr_reg:
1904        return rval;
1905}
1906
1907static void qla4_8xxx_minidump_process_rdcrb(struct scsi_qla_host *ha,
1908                                struct qla8xxx_minidump_entry_hdr *entry_hdr,
1909                                uint32_t **d_ptr)
1910{
1911        uint32_t r_addr, r_stride, loop_cnt, i, r_value;
1912        struct qla8xxx_minidump_entry_crb *crb_hdr;
1913        uint32_t *data_ptr = *d_ptr;
1914
1915        DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
1916        crb_hdr = (struct qla8xxx_minidump_entry_crb *)entry_hdr;
1917        r_addr = crb_hdr->addr;
1918        r_stride = crb_hdr->crb_strd.addr_stride;
1919        loop_cnt = crb_hdr->op_count;
1920
1921        for (i = 0; i < loop_cnt; i++) {
1922                ha->isp_ops->rd_reg_indirect(ha, r_addr, &r_value);
1923                *data_ptr++ = cpu_to_le32(r_addr);
1924                *data_ptr++ = cpu_to_le32(r_value);
1925                r_addr += r_stride;
1926        }
1927        *d_ptr = data_ptr;
1928}
1929
1930static int qla4_83xx_check_dma_engine_state(struct scsi_qla_host *ha)
1931{
1932        int rval = QLA_SUCCESS;
1933        uint32_t dma_eng_num = 0, cmd_sts_and_cntrl = 0;
1934        uint64_t dma_base_addr = 0;
1935        struct qla4_8xxx_minidump_template_hdr *tmplt_hdr = NULL;
1936
1937        tmplt_hdr = (struct qla4_8xxx_minidump_template_hdr *)
1938                                                        ha->fw_dump_tmplt_hdr;
1939        dma_eng_num =
1940                tmplt_hdr->saved_state_array[QLA83XX_PEX_DMA_ENGINE_INDEX];
1941        dma_base_addr = QLA83XX_PEX_DMA_BASE_ADDRESS +
1942                                (dma_eng_num * QLA83XX_PEX_DMA_NUM_OFFSET);
1943
1944        /* Read the pex-dma's command-status-and-control register. */
1945        rval = ha->isp_ops->rd_reg_indirect(ha,
1946                        (dma_base_addr + QLA83XX_PEX_DMA_CMD_STS_AND_CNTRL),
1947                        &cmd_sts_and_cntrl);
1948
1949        if (rval)
1950                return QLA_ERROR;
1951
1952        /* Check if requested pex-dma engine is available. */
1953        if (cmd_sts_and_cntrl & BIT_31)
1954                return QLA_SUCCESS;
1955        else
1956                return QLA_ERROR;
1957}
1958
1959static int qla4_83xx_start_pex_dma(struct scsi_qla_host *ha,
1960                           struct qla4_83xx_minidump_entry_rdmem_pex_dma *m_hdr)
1961{
1962        int rval = QLA_SUCCESS, wait = 0;
1963        uint32_t dma_eng_num = 0, cmd_sts_and_cntrl = 0;
1964        uint64_t dma_base_addr = 0;
1965        struct qla4_8xxx_minidump_template_hdr *tmplt_hdr = NULL;
1966
1967        tmplt_hdr = (struct qla4_8xxx_minidump_template_hdr *)
1968                                                        ha->fw_dump_tmplt_hdr;
1969        dma_eng_num =
1970                tmplt_hdr->saved_state_array[QLA83XX_PEX_DMA_ENGINE_INDEX];
1971        dma_base_addr = QLA83XX_PEX_DMA_BASE_ADDRESS +
1972                                (dma_eng_num * QLA83XX_PEX_DMA_NUM_OFFSET);
1973
1974        rval = ha->isp_ops->wr_reg_indirect(ha,
1975                                dma_base_addr + QLA83XX_PEX_DMA_CMD_ADDR_LOW,
1976                                m_hdr->desc_card_addr);
1977        if (rval)
1978                goto error_exit;
1979
1980        rval = ha->isp_ops->wr_reg_indirect(ha,
1981                              dma_base_addr + QLA83XX_PEX_DMA_CMD_ADDR_HIGH, 0);
1982        if (rval)
1983                goto error_exit;
1984
1985        rval = ha->isp_ops->wr_reg_indirect(ha,
1986                              dma_base_addr + QLA83XX_PEX_DMA_CMD_STS_AND_CNTRL,
1987                              m_hdr->start_dma_cmd);
1988        if (rval)
1989                goto error_exit;
1990
1991        /* Wait for dma operation to complete. */
1992        for (wait = 0; wait < QLA83XX_PEX_DMA_MAX_WAIT; wait++) {
1993                rval = ha->isp_ops->rd_reg_indirect(ha,
1994                            (dma_base_addr + QLA83XX_PEX_DMA_CMD_STS_AND_CNTRL),
1995                            &cmd_sts_and_cntrl);
1996                if (rval)
1997                        goto error_exit;
1998
1999                if ((cmd_sts_and_cntrl & BIT_1) == 0)
2000                        break;
2001                else
2002                        udelay(10);
2003        }
2004
2005        /* Wait a max of 100 ms, otherwise fallback to rdmem entry read */
2006        if (wait >= QLA83XX_PEX_DMA_MAX_WAIT) {
2007                rval = QLA_ERROR;
2008                goto error_exit;
2009        }
2010
2011error_exit:
2012        return rval;
2013}
2014
2015static int qla4_8xxx_minidump_pex_dma_read(struct scsi_qla_host *ha,
2016                                struct qla8xxx_minidump_entry_hdr *entry_hdr,
2017                                uint32_t **d_ptr)
2018{
2019        int rval = QLA_SUCCESS;
2020        struct qla4_83xx_minidump_entry_rdmem_pex_dma *m_hdr = NULL;
2021        uint32_t size, read_size;
2022        uint8_t *data_ptr = (uint8_t *)*d_ptr;
2023        void *rdmem_buffer = NULL;
2024        dma_addr_t rdmem_dma;
2025        struct qla4_83xx_pex_dma_descriptor dma_desc;
2026
2027        DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
2028
2029        rval = qla4_83xx_check_dma_engine_state(ha);
2030        if (rval != QLA_SUCCESS) {
2031                DEBUG2(ql4_printk(KERN_INFO, ha,
2032                                  "%s: DMA engine not available. Fallback to rdmem-read.\n",
2033                                  __func__));
2034                return QLA_ERROR;
2035        }
2036
2037        m_hdr = (struct qla4_83xx_minidump_entry_rdmem_pex_dma *)entry_hdr;
2038        rdmem_buffer = dma_alloc_coherent(&ha->pdev->dev,
2039                                          QLA83XX_PEX_DMA_READ_SIZE,
2040                                          &rdmem_dma, GFP_KERNEL);
2041        if (!rdmem_buffer) {
2042                DEBUG2(ql4_printk(KERN_INFO, ha,
2043                                  "%s: Unable to allocate rdmem dma buffer\n",
2044                                  __func__));
2045                return QLA_ERROR;
2046        }
2047
2048        /* Prepare pex-dma descriptor to be written to MS memory. */
2049        /* dma-desc-cmd layout:
2050         *              0-3: dma-desc-cmd 0-3
2051         *              4-7: pcid function number
2052         *              8-15: dma-desc-cmd 8-15
2053         */
2054        dma_desc.cmd.dma_desc_cmd = (m_hdr->dma_desc_cmd & 0xff0f);
2055        dma_desc.cmd.dma_desc_cmd |= ((PCI_FUNC(ha->pdev->devfn) & 0xf) << 0x4);
2056        dma_desc.dma_bus_addr = rdmem_dma;
2057
2058        size = 0;
2059        read_size = 0;
2060        /*
2061         * Perform rdmem operation using pex-dma.
2062         * Prepare dma in chunks of QLA83XX_PEX_DMA_READ_SIZE.
2063         */
2064        while (read_size < m_hdr->read_data_size) {
2065                if (m_hdr->read_data_size - read_size >=
2066                    QLA83XX_PEX_DMA_READ_SIZE)
2067                        size = QLA83XX_PEX_DMA_READ_SIZE;
2068                else {
2069                        size = (m_hdr->read_data_size - read_size);
2070
2071                        if (rdmem_buffer)
2072                                dma_free_coherent(&ha->pdev->dev,
2073                                                  QLA83XX_PEX_DMA_READ_SIZE,
2074                                                  rdmem_buffer, rdmem_dma);
2075
2076                        rdmem_buffer = dma_alloc_coherent(&ha->pdev->dev, size,
2077                                                          &rdmem_dma,
2078                                                          GFP_KERNEL);
2079                        if (!rdmem_buffer) {
2080                                DEBUG2(ql4_printk(KERN_INFO, ha,
2081                                                  "%s: Unable to allocate rdmem dma buffer\n",
2082                                                  __func__));
2083                                return QLA_ERROR;
2084                        }
2085                        dma_desc.dma_bus_addr = rdmem_dma;
2086                }
2087
2088                dma_desc.src_addr = m_hdr->read_addr + read_size;
2089                dma_desc.cmd.read_data_size = size;
2090
2091                /* Prepare: Write pex-dma descriptor to MS memory. */
2092                rval = qla4_8xxx_ms_mem_write_128b(ha,
2093                              (uint64_t)m_hdr->desc_card_addr,
2094                              (uint32_t *)&dma_desc,
2095                              (sizeof(struct qla4_83xx_pex_dma_descriptor)/16));
2096                if (rval != QLA_SUCCESS) {
2097                        ql4_printk(KERN_INFO, ha,
2098                                   "%s: Error writing rdmem-dma-init to MS !!!\n",
2099                                   __func__);
2100                        goto error_exit;
2101                }
2102
2103                DEBUG2(ql4_printk(KERN_INFO, ha,
2104                                  "%s: Dma-desc: Instruct for rdmem dma (size 0x%x).\n",
2105                                  __func__, size));
2106                /* Execute: Start pex-dma operation. */
2107                rval = qla4_83xx_start_pex_dma(ha, m_hdr);
2108                if (rval != QLA_SUCCESS) {
2109                        DEBUG2(ql4_printk(KERN_INFO, ha,
2110                                          "scsi(%ld): start-pex-dma failed rval=0x%x\n",
2111                                          ha->host_no, rval));
2112                        goto error_exit;
2113                }
2114
2115                memcpy(data_ptr, rdmem_buffer, size);
2116                data_ptr += size;
2117                read_size += size;
2118        }
2119
2120        DEBUG2(ql4_printk(KERN_INFO, ha, "Leaving fn: %s\n", __func__));
2121
2122        *d_ptr = (uint32_t *)data_ptr;
2123
2124error_exit:
2125        if (rdmem_buffer)
2126                dma_free_coherent(&ha->pdev->dev, size, rdmem_buffer,
2127                                  rdmem_dma);
2128
2129        return rval;
2130}
2131
2132static int qla4_8xxx_minidump_process_l2tag(struct scsi_qla_host *ha,
2133                                 struct qla8xxx_minidump_entry_hdr *entry_hdr,
2134                                 uint32_t **d_ptr)
2135{
2136        uint32_t addr, r_addr, c_addr, t_r_addr;
2137        uint32_t i, k, loop_count, t_value, r_cnt, r_value;
2138        unsigned long p_wait, w_time, p_mask;
2139        uint32_t c_value_w, c_value_r;
2140        struct qla8xxx_minidump_entry_cache *cache_hdr;
2141        int rval = QLA_ERROR;
2142        uint32_t *data_ptr = *d_ptr;
2143
2144        DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
2145        cache_hdr = (struct qla8xxx_minidump_entry_cache *)entry_hdr;
2146
2147        loop_count = cache_hdr->op_count;
2148        r_addr = cache_hdr->read_addr;
2149        c_addr = cache_hdr->control_addr;
2150        c_value_w = cache_hdr->cache_ctrl.write_value;
2151
2152        t_r_addr = cache_hdr->tag_reg_addr;
2153        t_value = cache_hdr->addr_ctrl.init_tag_value;
2154        r_cnt = cache_hdr->read_ctrl.read_addr_cnt;
2155        p_wait = cache_hdr->cache_ctrl.poll_wait;
2156        p_mask = cache_hdr->cache_ctrl.poll_mask;
2157
2158        for (i = 0; i < loop_count; i++) {
2159                ha->isp_ops->wr_reg_indirect(ha, t_r_addr, t_value);
2160
2161                if (c_value_w)
2162                        ha->isp_ops->wr_reg_indirect(ha, c_addr, c_value_w);
2163
2164                if (p_mask) {
2165                        w_time = jiffies + p_wait;
2166                        do {
2167                                ha->isp_ops->rd_reg_indirect(ha, c_addr,
2168                                                             &c_value_r);
2169                                if ((c_value_r & p_mask) == 0) {
2170                                        break;
2171                                } else if (time_after_eq(jiffies, w_time)) {
2172                                        /* capturing dump failed */
2173                                        return rval;
2174                                }
2175                        } while (1);
2176                }
2177
2178                addr = r_addr;
2179                for (k = 0; k < r_cnt; k++) {
2180                        ha->isp_ops->rd_reg_indirect(ha, addr, &r_value);
2181                        *data_ptr++ = cpu_to_le32(r_value);
2182                        addr += cache_hdr->read_ctrl.read_addr_stride;
2183                }
2184
2185                t_value += cache_hdr->addr_ctrl.tag_value_stride;
2186        }
2187        *d_ptr = data_ptr;
2188        return QLA_SUCCESS;
2189}
2190
2191static int qla4_8xxx_minidump_process_control(struct scsi_qla_host *ha,
2192                                struct qla8xxx_minidump_entry_hdr *entry_hdr)
2193{
2194        struct qla8xxx_minidump_entry_crb *crb_entry;
2195        uint32_t read_value, opcode, poll_time, addr, index, rval = QLA_SUCCESS;
2196        uint32_t crb_addr;
2197        unsigned long wtime;
2198        struct qla4_8xxx_minidump_template_hdr *tmplt_hdr;
2199        int i;
2200
2201        DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
2202        tmplt_hdr = (struct qla4_8xxx_minidump_template_hdr *)
2203                                                ha->fw_dump_tmplt_hdr;
2204        crb_entry = (struct qla8xxx_minidump_entry_crb *)entry_hdr;
2205
2206        crb_addr = crb_entry->addr;
2207        for (i = 0; i < crb_entry->op_count; i++) {
2208                opcode = crb_entry->crb_ctrl.opcode;
2209                if (opcode & QLA8XXX_DBG_OPCODE_WR) {
2210                        ha->isp_ops->wr_reg_indirect(ha, crb_addr,
2211                                                     crb_entry->value_1);
2212                        opcode &= ~QLA8XXX_DBG_OPCODE_WR;
2213                }
2214                if (opcode & QLA8XXX_DBG_OPCODE_RW) {
2215                        ha->isp_ops->rd_reg_indirect(ha, crb_addr, &read_value);
2216                        ha->isp_ops->wr_reg_indirect(ha, crb_addr, read_value);
2217                        opcode &= ~QLA8XXX_DBG_OPCODE_RW;
2218                }
2219                if (opcode & QLA8XXX_DBG_OPCODE_AND) {
2220                        ha->isp_ops->rd_reg_indirect(ha, crb_addr, &read_value);
2221                        read_value &= crb_entry->value_2;
2222                        opcode &= ~QLA8XXX_DBG_OPCODE_AND;
2223                        if (opcode & QLA8XXX_DBG_OPCODE_OR) {
2224                                read_value |= crb_entry->value_3;
2225                                opcode &= ~QLA8XXX_DBG_OPCODE_OR;
2226                        }
2227                        ha->isp_ops->wr_reg_indirect(ha, crb_addr, read_value);
2228                }
2229                if (opcode & QLA8XXX_DBG_OPCODE_OR) {
2230                        ha->isp_ops->rd_reg_indirect(ha, crb_addr, &read_value);
2231                        read_value |= crb_entry->value_3;
2232                        ha->isp_ops->wr_reg_indirect(ha, crb_addr, read_value);
2233                        opcode &= ~QLA8XXX_DBG_OPCODE_OR;
2234                }
2235                if (opcode & QLA8XXX_DBG_OPCODE_POLL) {
2236                        poll_time = crb_entry->crb_strd.poll_timeout;
2237                        wtime = jiffies + poll_time;
2238                        ha->isp_ops->rd_reg_indirect(ha, crb_addr, &read_value);
2239
2240                        do {
2241                                if ((read_value & crb_entry->value_2) ==
2242                                    crb_entry->value_1) {
2243                                        break;
2244                                } else if (time_after_eq(jiffies, wtime)) {
2245                                        /* capturing dump failed */
2246                                        rval = QLA_ERROR;
2247                                        break;
2248                                } else {
2249                                        ha->isp_ops->rd_reg_indirect(ha,
2250                                                        crb_addr, &read_value);
2251                                }
2252                        } while (1);
2253                        opcode &= ~QLA8XXX_DBG_OPCODE_POLL;
2254                }
2255
2256                if (opcode & QLA8XXX_DBG_OPCODE_RDSTATE) {
2257                        if (crb_entry->crb_strd.state_index_a) {
2258                                index = crb_entry->crb_strd.state_index_a;
2259                                addr = tmplt_hdr->saved_state_array[index];
2260                        } else {
2261                                addr = crb_addr;
2262                        }
2263
2264                        ha->isp_ops->rd_reg_indirect(ha, addr, &read_value);
2265                        index = crb_entry->crb_ctrl.state_index_v;
2266                        tmplt_hdr->saved_state_array[index] = read_value;
2267                        opcode &= ~QLA8XXX_DBG_OPCODE_RDSTATE;
2268                }
2269
2270                if (opcode & QLA8XXX_DBG_OPCODE_WRSTATE) {
2271                        if (crb_entry->crb_strd.state_index_a) {
2272                                index = crb_entry->crb_strd.state_index_a;
2273                                addr = tmplt_hdr->saved_state_array[index];
2274                        } else {
2275                                addr = crb_addr;
2276                        }
2277
2278                        if (crb_entry->crb_ctrl.state_index_v) {
2279                                index = crb_entry->crb_ctrl.state_index_v;
2280                                read_value =
2281                                        tmplt_hdr->saved_state_array[index];
2282                        } else {
2283                                read_value = crb_entry->value_1;
2284                        }
2285
2286                        ha->isp_ops->wr_reg_indirect(ha, addr, read_value);
2287                        opcode &= ~QLA8XXX_DBG_OPCODE_WRSTATE;
2288                }
2289
2290                if (opcode & QLA8XXX_DBG_OPCODE_MDSTATE) {
2291                        index = crb_entry->crb_ctrl.state_index_v;
2292                        read_value = tmplt_hdr->saved_state_array[index];
2293                        read_value <<= crb_entry->crb_ctrl.shl;
2294                        read_value >>= crb_entry->crb_ctrl.shr;
2295                        if (crb_entry->value_2)
2296                                read_value &= crb_entry->value_2;
2297                        read_value |= crb_entry->value_3;
2298                        read_value += crb_entry->value_1;
2299                        tmplt_hdr->saved_state_array[index] = read_value;
2300                        opcode &= ~QLA8XXX_DBG_OPCODE_MDSTATE;
2301                }
2302                crb_addr += crb_entry->crb_strd.addr_stride;
2303        }
2304        DEBUG2(ql4_printk(KERN_INFO, ha, "Leaving fn: %s\n", __func__));
2305        return rval;
2306}
2307
2308static void qla4_8xxx_minidump_process_rdocm(struct scsi_qla_host *ha,
2309                                struct qla8xxx_minidump_entry_hdr *entry_hdr,
2310                                uint32_t **d_ptr)
2311{
2312        uint32_t r_addr, r_stride, loop_cnt, i, r_value;
2313        struct qla8xxx_minidump_entry_rdocm *ocm_hdr;
2314        uint32_t *data_ptr = *d_ptr;
2315
2316        DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
2317        ocm_hdr = (struct qla8xxx_minidump_entry_rdocm *)entry_hdr;
2318        r_addr = ocm_hdr->read_addr;
2319        r_stride = ocm_hdr->read_addr_stride;
2320        loop_cnt = ocm_hdr->op_count;
2321
2322        DEBUG2(ql4_printk(KERN_INFO, ha,
2323                          "[%s]: r_addr: 0x%x, r_stride: 0x%x, loop_cnt: 0x%x\n",
2324                          __func__, r_addr, r_stride, loop_cnt));
2325
2326        for (i = 0; i < loop_cnt; i++) {
2327                r_value = readl((void __iomem *)(r_addr + ha->nx_pcibase));
2328                *data_ptr++ = cpu_to_le32(r_value);
2329                r_addr += r_stride;
2330        }
2331        DEBUG2(ql4_printk(KERN_INFO, ha, "Leaving fn: %s datacount: 0x%lx\n",
2332                __func__, (long unsigned int) (loop_cnt * sizeof(uint32_t))));
2333        *d_ptr = data_ptr;
2334}
2335
2336static void qla4_8xxx_minidump_process_rdmux(struct scsi_qla_host *ha,
2337                                struct qla8xxx_minidump_entry_hdr *entry_hdr,
2338                                uint32_t **d_ptr)
2339{
2340        uint32_t r_addr, s_stride, s_addr, s_value, loop_cnt, i, r_value;
2341        struct qla8xxx_minidump_entry_mux *mux_hdr;
2342        uint32_t *data_ptr = *d_ptr;
2343
2344        DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
2345        mux_hdr = (struct qla8xxx_minidump_entry_mux *)entry_hdr;
2346        r_addr = mux_hdr->read_addr;
2347        s_addr = mux_hdr->select_addr;
2348        s_stride = mux_hdr->select_value_stride;
2349        s_value = mux_hdr->select_value;
2350        loop_cnt = mux_hdr->op_count;
2351
2352        for (i = 0; i < loop_cnt; i++) {
2353                ha->isp_ops->wr_reg_indirect(ha, s_addr, s_value);
2354                ha->isp_ops->rd_reg_indirect(ha, r_addr, &r_value);
2355                *data_ptr++ = cpu_to_le32(s_value);
2356                *data_ptr++ = cpu_to_le32(r_value);
2357                s_value += s_stride;
2358        }
2359        *d_ptr = data_ptr;
2360}
2361
2362static void qla4_8xxx_minidump_process_l1cache(struct scsi_qla_host *ha,
2363                                struct qla8xxx_minidump_entry_hdr *entry_hdr,
2364                                uint32_t **d_ptr)
2365{
2366        uint32_t addr, r_addr, c_addr, t_r_addr;
2367        uint32_t i, k, loop_count, t_value, r_cnt, r_value;
2368        uint32_t c_value_w;
2369        struct qla8xxx_minidump_entry_cache *cache_hdr;
2370        uint32_t *data_ptr = *d_ptr;
2371
2372        cache_hdr = (struct qla8xxx_minidump_entry_cache *)entry_hdr;
2373        loop_count = cache_hdr->op_count;
2374        r_addr = cache_hdr->read_addr;
2375        c_addr = cache_hdr->control_addr;
2376        c_value_w = cache_hdr->cache_ctrl.write_value;
2377
2378        t_r_addr = cache_hdr->tag_reg_addr;
2379        t_value = cache_hdr->addr_ctrl.init_tag_value;
2380        r_cnt = cache_hdr->read_ctrl.read_addr_cnt;
2381
2382        for (i = 0; i < loop_count; i++) {
2383                ha->isp_ops->wr_reg_indirect(ha, t_r_addr, t_value);
2384                ha->isp_ops->wr_reg_indirect(ha, c_addr, c_value_w);
2385                addr = r_addr;
2386                for (k = 0; k < r_cnt; k++) {
2387                        ha->isp_ops->rd_reg_indirect(ha, addr, &r_value);
2388                        *data_ptr++ = cpu_to_le32(r_value);
2389                        addr += cache_hdr->read_ctrl.read_addr_stride;
2390                }
2391                t_value += cache_hdr->addr_ctrl.tag_value_stride;
2392        }
2393        *d_ptr = data_ptr;
2394}
2395
2396static void qla4_8xxx_minidump_process_queue(struct scsi_qla_host *ha,
2397                                struct qla8xxx_minidump_entry_hdr *entry_hdr,
2398                                uint32_t **d_ptr)
2399{
2400        uint32_t s_addr, r_addr;
2401        uint32_t r_stride, r_value, r_cnt, qid = 0;
2402        uint32_t i, k, loop_cnt;
2403        struct qla8xxx_minidump_entry_queue *q_hdr;
2404        uint32_t *data_ptr = *d_ptr;
2405
2406        DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
2407        q_hdr = (struct qla8xxx_minidump_entry_queue *)entry_hdr;
2408        s_addr = q_hdr->select_addr;
2409        r_cnt = q_hdr->rd_strd.read_addr_cnt;
2410        r_stride = q_hdr->rd_strd.read_addr_stride;
2411        loop_cnt = q_hdr->op_count;
2412
2413        for (i = 0; i < loop_cnt; i++) {
2414                ha->isp_ops->wr_reg_indirect(ha, s_addr, qid);
2415                r_addr = q_hdr->read_addr;
2416                for (k = 0; k < r_cnt; k++) {
2417                        ha->isp_ops->rd_reg_indirect(ha, r_addr, &r_value);
2418                        *data_ptr++ = cpu_to_le32(r_value);
2419                        r_addr += r_stride;
2420                }
2421                qid += q_hdr->q_strd.queue_id_stride;
2422        }
2423        *d_ptr = data_ptr;
2424}
2425
2426#define MD_DIRECT_ROM_WINDOW            0x42110030
2427#define MD_DIRECT_ROM_READ_BASE         0x42150000
2428
2429static void qla4_82xx_minidump_process_rdrom(struct scsi_qla_host *ha,
2430                                struct qla8xxx_minidump_entry_hdr *entry_hdr,
2431                                uint32_t **d_ptr)
2432{
2433        uint32_t r_addr, r_value;
2434        uint32_t i, loop_cnt;
2435        struct qla8xxx_minidump_entry_rdrom *rom_hdr;
2436        uint32_t *data_ptr = *d_ptr;
2437
2438        DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
2439        rom_hdr = (struct qla8xxx_minidump_entry_rdrom *)entry_hdr;
2440        r_addr = rom_hdr->read_addr;
2441        loop_cnt = rom_hdr->read_data_size/sizeof(uint32_t);
2442
2443        DEBUG2(ql4_printk(KERN_INFO, ha,
2444                          "[%s]: flash_addr: 0x%x, read_data_size: 0x%x\n",
2445                           __func__, r_addr, loop_cnt));
2446
2447        for (i = 0; i < loop_cnt; i++) {
2448                ha->isp_ops->wr_reg_indirect(ha, MD_DIRECT_ROM_WINDOW,
2449                                             (r_addr & 0xFFFF0000));
2450                ha->isp_ops->rd_reg_indirect(ha,
2451                                MD_DIRECT_ROM_READ_BASE + (r_addr & 0x0000FFFF),
2452                                &r_value);
2453                *data_ptr++ = cpu_to_le32(r_value);
2454                r_addr += sizeof(uint32_t);
2455        }
2456        *d_ptr = data_ptr;
2457}
2458
2459#define MD_MIU_TEST_AGT_CTRL            0x41000090
2460#define MD_MIU_TEST_AGT_ADDR_LO         0x41000094
2461#define MD_MIU_TEST_AGT_ADDR_HI         0x41000098
2462
2463static int __qla4_8xxx_minidump_process_rdmem(struct scsi_qla_host *ha,
2464                                struct qla8xxx_minidump_entry_hdr *entry_hdr,
2465                                uint32_t **d_ptr)
2466{
2467        uint32_t r_addr, r_value, r_data;
2468        uint32_t i, j, loop_cnt;
2469        struct qla8xxx_minidump_entry_rdmem *m_hdr;
2470        unsigned long flags;
2471        uint32_t *data_ptr = *d_ptr;
2472
2473        DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
2474        m_hdr = (struct qla8xxx_minidump_entry_rdmem *)entry_hdr;
2475        r_addr = m_hdr->read_addr;
2476        loop_cnt = m_hdr->read_data_size/16;
2477
2478        DEBUG2(ql4_printk(KERN_INFO, ha,
2479                          "[%s]: Read addr: 0x%x, read_data_size: 0x%x\n",
2480                          __func__, r_addr, m_hdr->read_data_size));
2481
2482        if (r_addr & 0xf) {
2483                DEBUG2(ql4_printk(KERN_INFO, ha,
2484                                  "[%s]: Read addr 0x%x not 16 bytes aligned\n",
2485                                  __func__, r_addr));
2486                return QLA_ERROR;
2487        }
2488
2489        if (m_hdr->read_data_size % 16) {
2490                DEBUG2(ql4_printk(KERN_INFO, ha,
2491                                  "[%s]: Read data[0x%x] not multiple of 16 bytes\n",
2492                                  __func__, m_hdr->read_data_size));
2493                return QLA_ERROR;
2494        }
2495
2496        DEBUG2(ql4_printk(KERN_INFO, ha,
2497                          "[%s]: rdmem_addr: 0x%x, read_data_size: 0x%x, loop_cnt: 0x%x\n",
2498                          __func__, r_addr, m_hdr->read_data_size, loop_cnt));
2499
2500        write_lock_irqsave(&ha->hw_lock, flags);
2501        for (i = 0; i < loop_cnt; i++) {
2502                ha->isp_ops->wr_reg_indirect(ha, MD_MIU_TEST_AGT_ADDR_LO,
2503                                             r_addr);
2504                r_value = 0;
2505                ha->isp_ops->wr_reg_indirect(ha, MD_MIU_TEST_AGT_ADDR_HI,
2506                                             r_value);
2507                r_value = MIU_TA_CTL_ENABLE;
2508                ha->isp_ops->wr_reg_indirect(ha, MD_MIU_TEST_AGT_CTRL, r_value);
2509                r_value = MIU_TA_CTL_START_ENABLE;
2510                ha->isp_ops->wr_reg_indirect(ha, MD_MIU_TEST_AGT_CTRL, r_value);
2511
2512                for (j = 0; j < MAX_CTL_CHECK; j++) {
2513                        ha->isp_ops->rd_reg_indirect(ha, MD_MIU_TEST_AGT_CTRL,
2514                                                     &r_value);
2515                        if ((r_value & MIU_TA_CTL_BUSY) == 0)
2516                                break;
2517                }
2518
2519                if (j >= MAX_CTL_CHECK) {
2520                        printk_ratelimited(KERN_ERR
2521                                           "%s: failed to read through agent\n",
2522                                            __func__);
2523                        write_unlock_irqrestore(&ha->hw_lock, flags);
2524                        return QLA_SUCCESS;
2525                }
2526
2527                for (j = 0; j < 4; j++) {
2528                        ha->isp_ops->rd_reg_indirect(ha,
2529                                                     MD_MIU_TEST_AGT_RDDATA[j],
2530                                                     &r_data);
2531                        *data_ptr++ = cpu_to_le32(r_data);
2532                }
2533
2534                r_addr += 16;
2535        }
2536        write_unlock_irqrestore(&ha->hw_lock, flags);
2537
2538        DEBUG2(ql4_printk(KERN_INFO, ha, "Leaving fn: %s datacount: 0x%x\n",
2539                          __func__, (loop_cnt * 16)));
2540
2541        *d_ptr = data_ptr;
2542        return QLA_SUCCESS;
2543}
2544
2545static int qla4_8xxx_minidump_process_rdmem(struct scsi_qla_host *ha,
2546                                struct qla8xxx_minidump_entry_hdr *entry_hdr,
2547                                uint32_t **d_ptr)
2548{
2549        uint32_t *data_ptr = *d_ptr;
2550        int rval = QLA_SUCCESS;
2551
2552        rval = qla4_8xxx_minidump_pex_dma_read(ha, entry_hdr, &data_ptr);
2553        if (rval != QLA_SUCCESS)
2554                rval = __qla4_8xxx_minidump_process_rdmem(ha, entry_hdr,
2555                                                          &data_ptr);
2556        *d_ptr = data_ptr;
2557        return rval;
2558}
2559
2560static void qla4_8xxx_mark_entry_skipped(struct scsi_qla_host *ha,
2561                                struct qla8xxx_minidump_entry_hdr *entry_hdr,
2562                                int index)
2563{
2564        entry_hdr->d_ctrl.driver_flags |= QLA8XXX_DBG_SKIPPED_FLAG;
2565        DEBUG2(ql4_printk(KERN_INFO, ha,
2566                          "scsi(%ld): Skipping entry[%d]: ETYPE[0x%x]-ELEVEL[0x%x]\n",
2567                          ha->host_no, index, entry_hdr->entry_type,
2568                          entry_hdr->d_ctrl.entry_capture_mask));
2569        /* If driver encounters a new entry type that it cannot process,
2570         * it should just skip the entry and adjust the total buffer size by
2571         * from subtracting the skipped bytes from it
2572         */
2573        ha->fw_dump_skip_size += entry_hdr->entry_capture_size;
2574}
2575
2576/* ISP83xx functions to process new minidump entries... */
2577static uint32_t qla83xx_minidump_process_pollrd(struct scsi_qla_host *ha,
2578                                struct qla8xxx_minidump_entry_hdr *entry_hdr,
2579                                uint32_t **d_ptr)
2580{
2581        uint32_t r_addr, s_addr, s_value, r_value, poll_wait, poll_mask;
2582        uint16_t s_stride, i;
2583        uint32_t *data_ptr = *d_ptr;
2584        uint32_t rval = QLA_SUCCESS;
2585        struct qla83xx_minidump_entry_pollrd *pollrd_hdr;
2586
2587        pollrd_hdr = (struct qla83xx_minidump_entry_pollrd *)entry_hdr;
2588        s_addr = le32_to_cpu(pollrd_hdr->select_addr);
2589        r_addr = le32_to_cpu(pollrd_hdr->read_addr);
2590        s_value = le32_to_cpu(pollrd_hdr->select_value);
2591        s_stride = le32_to_cpu(pollrd_hdr->select_value_stride);
2592
2593        poll_wait = le32_to_cpu(pollrd_hdr->poll_wait);
2594        poll_mask = le32_to_cpu(pollrd_hdr->poll_mask);
2595
2596        for (i = 0; i < le32_to_cpu(pollrd_hdr->op_count); i++) {
2597                ha->isp_ops->wr_reg_indirect(ha, s_addr, s_value);
2598                poll_wait = le32_to_cpu(pollrd_hdr->poll_wait);
2599                while (1) {
2600                        ha->isp_ops->rd_reg_indirect(ha, s_addr, &r_value);
2601
2602                        if ((r_value & poll_mask) != 0) {
2603                                break;
2604                        } else {
2605                                msleep(1);
2606                                if (--poll_wait == 0) {
2607                                        ql4_printk(KERN_ERR, ha, "%s: TIMEOUT\n",
2608                                                   __func__);
2609                                        rval = QLA_ERROR;
2610                                        goto exit_process_pollrd;
2611                                }
2612                        }
2613                }
2614                ha->isp_ops->rd_reg_indirect(ha, r_addr, &r_value);
2615                *data_ptr++ = cpu_to_le32(s_value);
2616                *data_ptr++ = cpu_to_le32(r_value);
2617                s_value += s_stride;
2618        }
2619
2620        *d_ptr = data_ptr;
2621
2622exit_process_pollrd:
2623        return rval;
2624}
2625
2626static uint32_t qla4_84xx_minidump_process_rddfe(struct scsi_qla_host *ha,
2627                                struct qla8xxx_minidump_entry_hdr *entry_hdr,
2628                                uint32_t **d_ptr)
2629{
2630        int loop_cnt;
2631        uint32_t addr1, addr2, value, data, temp, wrval;
2632        uint8_t stride, stride2;
2633        uint16_t count;
2634        uint32_t poll, mask, modify_mask;
2635        uint32_t wait_count = 0;
2636        uint32_t *data_ptr = *d_ptr;
2637        struct qla8044_minidump_entry_rddfe *rddfe;
2638        uint32_t rval = QLA_SUCCESS;
2639
2640        rddfe = (struct qla8044_minidump_entry_rddfe *)entry_hdr;
2641        addr1 = le32_to_cpu(rddfe->addr_1);
2642        value = le32_to_cpu(rddfe->value);
2643        stride = le32_to_cpu(rddfe->stride);
2644        stride2 = le32_to_cpu(rddfe->stride2);
2645        count = le32_to_cpu(rddfe->count);
2646
2647        poll = le32_to_cpu(rddfe->poll);
2648        mask = le32_to_cpu(rddfe->mask);
2649        modify_mask = le32_to_cpu(rddfe->modify_mask);
2650
2651        addr2 = addr1 + stride;
2652
2653        for (loop_cnt = 0x0; loop_cnt < count; loop_cnt++) {
2654                ha->isp_ops->wr_reg_indirect(ha, addr1, (0x40000000 | value));
2655
2656                wait_count = 0;
2657                while (wait_count < poll) {
2658                        ha->isp_ops->rd_reg_indirect(ha, addr1, &temp);
2659                        if ((temp & mask) != 0)
2660                                break;
2661                        wait_count++;
2662                }
2663
2664                if (wait_count == poll) {
2665                        ql4_printk(KERN_ERR, ha, "%s: TIMEOUT\n", __func__);
2666                        rval = QLA_ERROR;
2667                        goto exit_process_rddfe;
2668                } else {
2669                        ha->isp_ops->rd_reg_indirect(ha, addr2, &temp);
2670                        temp = temp & modify_mask;
2671                        temp = (temp | ((loop_cnt << 16) | loop_cnt));
2672                        wrval = ((temp << 16) | temp);
2673
2674                        ha->isp_ops->wr_reg_indirect(ha, addr2, wrval);
2675                        ha->isp_ops->wr_reg_indirect(ha, addr1, value);
2676
2677                        wait_count = 0;
2678                        while (wait_count < poll) {
2679                                ha->isp_ops->rd_reg_indirect(ha, addr1, &temp);
2680                                if ((temp & mask) != 0)
2681                                        break;
2682                                wait_count++;
2683                        }
2684                        if (wait_count == poll) {
2685                                ql4_printk(KERN_ERR, ha, "%s: TIMEOUT\n",
2686                                           __func__);
2687                                rval = QLA_ERROR;
2688                                goto exit_process_rddfe;
2689                        }
2690
2691                        ha->isp_ops->wr_reg_indirect(ha, addr1,
2692                                                     ((0x40000000 | value) +
2693                                                     stride2));
2694                        wait_count = 0;
2695                        while (wait_count < poll) {
2696                                ha->isp_ops->rd_reg_indirect(ha, addr1, &temp);
2697                                if ((temp & mask) != 0)
2698                                        break;
2699                                wait_count++;
2700                        }
2701
2702                        if (wait_count == poll) {
2703                                ql4_printk(KERN_ERR, ha, "%s: TIMEOUT\n",
2704                                           __func__);
2705                                rval = QLA_ERROR;
2706                                goto exit_process_rddfe;
2707                        }
2708
2709                        ha->isp_ops->rd_reg_indirect(ha, addr2, &data);
2710
2711                        *data_ptr++ = cpu_to_le32(wrval);
2712                        *data_ptr++ = cpu_to_le32(data);
2713                }
2714        }
2715
2716        *d_ptr = data_ptr;
2717exit_process_rddfe:
2718        return rval;
2719}
2720
2721static uint32_t qla4_84xx_minidump_process_rdmdio(struct scsi_qla_host *ha,
2722                                struct qla8xxx_minidump_entry_hdr *entry_hdr,
2723                                uint32_t **d_ptr)
2724{
2725        int rval = QLA_SUCCESS;
2726        uint32_t addr1, addr2, value1, value2, data, selval;
2727        uint8_t stride1, stride2;
2728        uint32_t addr3, addr4, addr5, addr6, addr7;
2729        uint16_t count, loop_cnt;
2730        uint32_t mask;
2731        uint32_t *data_ptr = *d_ptr;
2732        struct qla8044_minidump_entry_rdmdio *rdmdio;
2733
2734        rdmdio = (struct qla8044_minidump_entry_rdmdio *)entry_hdr;
2735        addr1 = le32_to_cpu(rdmdio->addr_1);
2736        addr2 = le32_to_cpu(rdmdio->addr_2);
2737        value1 = le32_to_cpu(rdmdio->value_1);
2738        stride1 = le32_to_cpu(rdmdio->stride_1);
2739        stride2 = le32_to_cpu(rdmdio->stride_2);
2740        count = le32_to_cpu(rdmdio->count);
2741
2742        mask = le32_to_cpu(rdmdio->mask);
2743        value2 = le32_to_cpu(rdmdio->value_2);
2744
2745        addr3 = addr1 + stride1;
2746
2747        for (loop_cnt = 0; loop_cnt < count; loop_cnt++) {
2748                rval = ql4_84xx_poll_wait_ipmdio_bus_idle(ha, addr1, addr2,
2749                                                         addr3, mask);
2750                if (rval)
2751                        goto exit_process_rdmdio;
2752
2753                addr4 = addr2 - stride1;
2754                rval = ql4_84xx_ipmdio_wr_reg(ha, addr1, addr3, mask, addr4,
2755                                             value2);
2756                if (rval)
2757                        goto exit_process_rdmdio;
2758
2759                addr5 = addr2 - (2 * stride1);
2760                rval = ql4_84xx_ipmdio_wr_reg(ha, addr1, addr3, mask, addr5,
2761                                             value1);
2762                if (rval)
2763                        goto exit_process_rdmdio;
2764
2765                addr6 = addr2 - (3 * stride1);
2766                rval = ql4_84xx_ipmdio_wr_reg(ha, addr1, addr3, mask,
2767                                             addr6, 0x2);
2768                if (rval)
2769                        goto exit_process_rdmdio;
2770
2771                rval = ql4_84xx_poll_wait_ipmdio_bus_idle(ha, addr1, addr2,
2772                                                         addr3, mask);
2773                if (rval)
2774                        goto exit_process_rdmdio;
2775
2776                addr7 = addr2 - (4 * stride1);
2777                rval = ql4_84xx_ipmdio_rd_reg(ha, addr1, addr3,
2778                                                      mask, addr7, &data);
2779                if (rval)
2780                        goto exit_process_rdmdio;
2781
2782                selval = (value2 << 18) | (value1 << 2) | 2;
2783
2784                stride2 = le32_to_cpu(rdmdio->stride_2);
2785                *data_ptr++ = cpu_to_le32(selval);
2786                *data_ptr++ = cpu_to_le32(data);
2787
2788                value1 = value1 + stride2;
2789                *d_ptr = data_ptr;
2790        }
2791
2792exit_process_rdmdio:
2793        return rval;
2794}
2795
2796static uint32_t qla4_84xx_minidump_process_pollwr(struct scsi_qla_host *ha,
2797                                struct qla8xxx_minidump_entry_hdr *entry_hdr,
2798                                uint32_t **d_ptr)
2799{
2800        uint32_t addr1, addr2, value1, value2, poll, r_value;
2801        struct qla8044_minidump_entry_pollwr *pollwr_hdr;
2802        uint32_t wait_count = 0;
2803        uint32_t rval = QLA_SUCCESS;
2804
2805        pollwr_hdr = (struct qla8044_minidump_entry_pollwr *)entry_hdr;
2806        addr1 = le32_to_cpu(pollwr_hdr->addr_1);
2807        addr2 = le32_to_cpu(pollwr_hdr->addr_2);
2808        value1 = le32_to_cpu(pollwr_hdr->value_1);
2809        value2 = le32_to_cpu(pollwr_hdr->value_2);
2810
2811        poll = le32_to_cpu(pollwr_hdr->poll);
2812
2813        while (wait_count < poll) {
2814                ha->isp_ops->rd_reg_indirect(ha, addr1, &r_value);
2815
2816                if ((r_value & poll) != 0)
2817                        break;
2818
2819                wait_count++;
2820        }
2821
2822        if (wait_count == poll) {
2823                ql4_printk(KERN_ERR, ha, "%s: TIMEOUT\n", __func__);
2824                rval = QLA_ERROR;
2825                goto exit_process_pollwr;
2826        }
2827
2828        ha->isp_ops->wr_reg_indirect(ha, addr2, value2);
2829        ha->isp_ops->wr_reg_indirect(ha, addr1, value1);
2830
2831        wait_count = 0;
2832        while (wait_count < poll) {
2833                ha->isp_ops->rd_reg_indirect(ha, addr1, &r_value);
2834
2835                if ((r_value & poll) != 0)
2836                        break;
2837                wait_count++;
2838        }
2839
2840exit_process_pollwr:
2841        return rval;
2842}
2843
2844static void qla83xx_minidump_process_rdmux2(struct scsi_qla_host *ha,
2845                                struct qla8xxx_minidump_entry_hdr *entry_hdr,
2846                                uint32_t **d_ptr)
2847{
2848        uint32_t sel_val1, sel_val2, t_sel_val, data, i;
2849        uint32_t sel_addr1, sel_addr2, sel_val_mask, read_addr;
2850        struct qla83xx_minidump_entry_rdmux2 *rdmux2_hdr;
2851        uint32_t *data_ptr = *d_ptr;
2852
2853        rdmux2_hdr = (struct qla83xx_minidump_entry_rdmux2 *)entry_hdr;
2854        sel_val1 = le32_to_cpu(rdmux2_hdr->select_value_1);
2855        sel_val2 = le32_to_cpu(rdmux2_hdr->select_value_2);
2856        sel_addr1 = le32_to_cpu(rdmux2_hdr->select_addr_1);
2857        sel_addr2 = le32_to_cpu(rdmux2_hdr->select_addr_2);
2858        sel_val_mask = le32_to_cpu(rdmux2_hdr->select_value_mask);
2859        read_addr = le32_to_cpu(rdmux2_hdr->read_addr);
2860
2861        for (i = 0; i < rdmux2_hdr->op_count; i++) {
2862                ha->isp_ops->wr_reg_indirect(ha, sel_addr1, sel_val1);
2863                t_sel_val = sel_val1 & sel_val_mask;
2864                *data_ptr++ = cpu_to_le32(t_sel_val);
2865
2866                ha->isp_ops->wr_reg_indirect(ha, sel_addr2, t_sel_val);
2867                ha->isp_ops->rd_reg_indirect(ha, read_addr, &data);
2868
2869                *data_ptr++ = cpu_to_le32(data);
2870
2871                ha->isp_ops->wr_reg_indirect(ha, sel_addr1, sel_val2);
2872                t_sel_val = sel_val2 & sel_val_mask;
2873                *data_ptr++ = cpu_to_le32(t_sel_val);
2874
2875                ha->isp_ops->wr_reg_indirect(ha, sel_addr2, t_sel_val);
2876                ha->isp_ops->rd_reg_indirect(ha, read_addr, &data);
2877
2878                *data_ptr++ = cpu_to_le32(data);
2879
2880                sel_val1 += rdmux2_hdr->select_value_stride;
2881                sel_val2 += rdmux2_hdr->select_value_stride;
2882        }
2883
2884        *d_ptr = data_ptr;
2885}
2886
2887static uint32_t qla83xx_minidump_process_pollrdmwr(struct scsi_qla_host *ha,
2888                                struct qla8xxx_minidump_entry_hdr *entry_hdr,
2889                                uint32_t **d_ptr)
2890{
2891        uint32_t poll_wait, poll_mask, r_value, data;
2892        uint32_t addr_1, addr_2, value_1, value_2;
2893        uint32_t *data_ptr = *d_ptr;
2894        uint32_t rval = QLA_SUCCESS;
2895        struct qla83xx_minidump_entry_pollrdmwr *poll_hdr;
2896
2897        poll_hdr = (struct qla83xx_minidump_entry_pollrdmwr *)entry_hdr;
2898        addr_1 = le32_to_cpu(poll_hdr->addr_1);
2899        addr_2 = le32_to_cpu(poll_hdr->addr_2);
2900        value_1 = le32_to_cpu(poll_hdr->value_1);
2901        value_2 = le32_to_cpu(poll_hdr->value_2);
2902        poll_mask = le32_to_cpu(poll_hdr->poll_mask);
2903
2904        ha->isp_ops->wr_reg_indirect(ha, addr_1, value_1);
2905
2906        poll_wait = le32_to_cpu(poll_hdr->poll_wait);
2907        while (1) {
2908                ha->isp_ops->rd_reg_indirect(ha, addr_1, &r_value);
2909
2910                if ((r_value & poll_mask) != 0) {
2911                        break;
2912                } else {
2913                        msleep(1);
2914                        if (--poll_wait == 0) {
2915                                ql4_printk(KERN_ERR, ha, "%s: TIMEOUT_1\n",
2916                                           __func__);
2917                                rval = QLA_ERROR;
2918                                goto exit_process_pollrdmwr;
2919                        }
2920                }
2921        }
2922
2923        ha->isp_ops->rd_reg_indirect(ha, addr_2, &data);
2924        data &= le32_to_cpu(poll_hdr->modify_mask);
2925        ha->isp_ops->wr_reg_indirect(ha, addr_2, data);
2926        ha->isp_ops->wr_reg_indirect(ha, addr_1, value_2);
2927
2928        poll_wait = le32_to_cpu(poll_hdr->poll_wait);
2929        while (1) {
2930                ha->isp_ops->rd_reg_indirect(ha, addr_1, &r_value);
2931
2932                if ((r_value & poll_mask) != 0) {
2933                        break;
2934                } else {
2935                        msleep(1);
2936                        if (--poll_wait == 0) {
2937                                ql4_printk(KERN_ERR, ha, "%s: TIMEOUT_2\n",
2938                                           __func__);
2939                                rval = QLA_ERROR;
2940                                goto exit_process_pollrdmwr;
2941                        }
2942                }
2943        }
2944
2945        *data_ptr++ = cpu_to_le32(addr_2);
2946        *data_ptr++ = cpu_to_le32(data);
2947        *d_ptr = data_ptr;
2948
2949exit_process_pollrdmwr:
2950        return rval;
2951}
2952
2953static uint32_t qla4_83xx_minidump_process_rdrom(struct scsi_qla_host *ha,
2954                                struct qla8xxx_minidump_entry_hdr *entry_hdr,
2955                                uint32_t **d_ptr)
2956{
2957        uint32_t fl_addr, u32_count, rval;
2958        struct qla8xxx_minidump_entry_rdrom *rom_hdr;
2959        uint32_t *data_ptr = *d_ptr;
2960
2961        rom_hdr = (struct qla8xxx_minidump_entry_rdrom *)entry_hdr;
2962        fl_addr = le32_to_cpu(rom_hdr->read_addr);
2963        u32_count = le32_to_cpu(rom_hdr->read_data_size)/sizeof(uint32_t);
2964
2965        DEBUG2(ql4_printk(KERN_INFO, ha, "[%s]: fl_addr: 0x%x, count: 0x%x\n",
2966                          __func__, fl_addr, u32_count));
2967
2968        rval = qla4_83xx_lockless_flash_read_u32(ha, fl_addr,
2969                                                 (u8 *)(data_ptr), u32_count);
2970
2971        if (rval == QLA_ERROR) {
2972                ql4_printk(KERN_ERR, ha, "%s: Flash Read Error,Count=%d\n",
2973                           __func__, u32_count);
2974                goto exit_process_rdrom;
2975        }
2976
2977        data_ptr += u32_count;
2978        *d_ptr = data_ptr;
2979
2980exit_process_rdrom:
2981        return rval;
2982}
2983
2984/**
2985 * qla4_8xxx_collect_md_data - Retrieve firmware minidump data.
2986 * @ha: pointer to adapter structure
2987 **/
2988static int qla4_8xxx_collect_md_data(struct scsi_qla_host *ha)
2989{
2990        int num_entry_hdr = 0;
2991        struct qla8xxx_minidump_entry_hdr *entry_hdr;
2992        struct qla4_8xxx_minidump_template_hdr *tmplt_hdr;
2993        uint32_t *data_ptr;
2994        uint32_t data_collected = 0;
2995        int i, rval = QLA_ERROR;
2996        uint64_t now;
2997        uint32_t timestamp;
2998
2999        ha->fw_dump_skip_size = 0;
3000        if (!ha->fw_dump) {
3001                ql4_printk(KERN_INFO, ha, "%s(%ld) No buffer to dump\n",
3002                           __func__, ha->host_no);
3003                return rval;
3004        }
3005
3006        tmplt_hdr = (struct qla4_8xxx_minidump_template_hdr *)
3007                                                ha->fw_dump_tmplt_hdr;
3008        data_ptr = (uint32_t *)((uint8_t *)ha->fw_dump +
3009                                                ha->fw_dump_tmplt_size);
3010        data_collected += ha->fw_dump_tmplt_size;
3011
3012        num_entry_hdr = tmplt_hdr->num_of_entries;
3013        ql4_printk(KERN_INFO, ha, "[%s]: starting data ptr: %p\n",
3014                   __func__, data_ptr);
3015        ql4_printk(KERN_INFO, ha,
3016                   "[%s]: no of entry headers in Template: 0x%x\n",
3017                   __func__, num_entry_hdr);
3018        ql4_printk(KERN_INFO, ha, "[%s]: Capture Mask obtained: 0x%x\n",
3019                   __func__, ha->fw_dump_capture_mask);
3020        ql4_printk(KERN_INFO, ha, "[%s]: Total_data_size 0x%x, %d obtained\n",
3021                   __func__, ha->fw_dump_size, ha->fw_dump_size);
3022
3023        /* Update current timestamp before taking dump */
3024        now = get_jiffies_64();
3025        timestamp = (u32)(jiffies_to_msecs(now) / 1000);
3026        tmplt_hdr->driver_timestamp = timestamp;
3027
3028        entry_hdr = (struct qla8xxx_minidump_entry_hdr *)
3029                                        (((uint8_t *)ha->fw_dump_tmplt_hdr) +
3030                                         tmplt_hdr->first_entry_offset);
3031
3032        if (is_qla8032(ha) || is_qla8042(ha))
3033                tmplt_hdr->saved_state_array[QLA83XX_SS_OCM_WNDREG_INDEX] =
3034                                        tmplt_hdr->ocm_window_reg[ha->func_num];
3035
3036        /* Walk through the entry headers - validate/perform required action */
3037        for (i = 0; i < num_entry_hdr; i++) {
3038                if (data_collected > ha->fw_dump_size) {
3039                        ql4_printk(KERN_INFO, ha,
3040                                   "Data collected: [0x%x], Total Dump size: [0x%x]\n",
3041                                   data_collected, ha->fw_dump_size);
3042                        return rval;
3043                }
3044
3045                if (!(entry_hdr->d_ctrl.entry_capture_mask &
3046                      ha->fw_dump_capture_mask)) {
3047                        entry_hdr->d_ctrl.driver_flags |=
3048                                                QLA8XXX_DBG_SKIPPED_FLAG;
3049                        goto skip_nxt_entry;
3050                }
3051
3052                DEBUG2(ql4_printk(KERN_INFO, ha,
3053                                  "Data collected: [0x%x], Dump size left:[0x%x]\n",
3054                                  data_collected,
3055                                  (ha->fw_dump_size - data_collected)));
3056
3057                /* Decode the entry type and take required action to capture
3058                 * debug data
3059                 */
3060                switch (entry_hdr->entry_type) {
3061                case QLA8XXX_RDEND:
3062                        qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3063                        break;
3064                case QLA8XXX_CNTRL:
3065                        rval = qla4_8xxx_minidump_process_control(ha,
3066                                                                  entry_hdr);
3067                        if (rval != QLA_SUCCESS) {
3068                                qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3069                                goto md_failed;
3070                        }
3071                        break;
3072                case QLA8XXX_RDCRB:
3073                        qla4_8xxx_minidump_process_rdcrb(ha, entry_hdr,
3074                                                         &data_ptr);
3075                        break;
3076                case QLA8XXX_RDMEM:
3077                        rval = qla4_8xxx_minidump_process_rdmem(ha, entry_hdr,
3078                                                                &data_ptr);
3079                        if (rval != QLA_SUCCESS) {
3080                                qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3081                                goto md_failed;
3082                        }
3083                        break;
3084                case QLA8XXX_BOARD:
3085                case QLA8XXX_RDROM:
3086                        if (is_qla8022(ha)) {
3087                                qla4_82xx_minidump_process_rdrom(ha, entry_hdr,
3088                                                                 &data_ptr);
3089                        } else if (is_qla8032(ha) || is_qla8042(ha)) {
3090                                rval = qla4_83xx_minidump_process_rdrom(ha,
3091                                                                    entry_hdr,
3092                                                                    &data_ptr);
3093                                if (rval != QLA_SUCCESS)
3094                                        qla4_8xxx_mark_entry_skipped(ha,
3095                                                                     entry_hdr,
3096                                                                     i);
3097                        }
3098                        break;
3099                case QLA8XXX_L2DTG:
3100                case QLA8XXX_L2ITG:
3101                case QLA8XXX_L2DAT:
3102                case QLA8XXX_L2INS:
3103                        rval = qla4_8xxx_minidump_process_l2tag(ha, entry_hdr,
3104                                                                &data_ptr);
3105                        if (rval != QLA_SUCCESS) {
3106                                qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3107                                goto md_failed;
3108                        }
3109                        break;
3110                case QLA8XXX_L1DTG:
3111                case QLA8XXX_L1ITG:
3112                case QLA8XXX_L1DAT:
3113                case QLA8XXX_L1INS:
3114                        qla4_8xxx_minidump_process_l1cache(ha, entry_hdr,
3115                                                           &data_ptr);
3116                        break;
3117                case QLA8XXX_RDOCM:
3118                        qla4_8xxx_minidump_process_rdocm(ha, entry_hdr,
3119                                                         &data_ptr);
3120                        break;
3121                case QLA8XXX_RDMUX:
3122                        qla4_8xxx_minidump_process_rdmux(ha, entry_hdr,
3123                                                         &data_ptr);
3124                        break;
3125                case QLA8XXX_QUEUE:
3126                        qla4_8xxx_minidump_process_queue(ha, entry_hdr,
3127                                                         &data_ptr);
3128                        break;
3129                case QLA83XX_POLLRD:
3130                        if (is_qla8022(ha)) {
3131                                qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3132                                break;
3133                        }
3134                        rval = qla83xx_minidump_process_pollrd(ha, entry_hdr,
3135                                                               &data_ptr);
3136                        if (rval != QLA_SUCCESS)
3137                                qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3138                        break;
3139                case QLA83XX_RDMUX2:
3140                        if (is_qla8022(ha)) {
3141                                qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3142                                break;
3143                        }
3144                        qla83xx_minidump_process_rdmux2(ha, entry_hdr,
3145                                                        &data_ptr);
3146                        break;
3147                case QLA83XX_POLLRDMWR:
3148                        if (is_qla8022(ha)) {
3149                                qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3150                                break;
3151                        }
3152                        rval = qla83xx_minidump_process_pollrdmwr(ha, entry_hdr,
3153                                                                  &data_ptr);
3154                        if (rval != QLA_SUCCESS)
3155                                qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3156                        break;
3157                case QLA8044_RDDFE:
3158                        rval = qla4_84xx_minidump_process_rddfe(ha, entry_hdr,
3159                                                                &data_ptr);
3160                        if (rval != QLA_SUCCESS)
3161                                qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3162                        break;
3163                case QLA8044_RDMDIO:
3164                        rval = qla4_84xx_minidump_process_rdmdio(ha, entry_hdr,
3165                                                                 &data_ptr);
3166                        if (rval != QLA_SUCCESS)
3167                                qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3168                        break;
3169                case QLA8044_POLLWR:
3170                        rval = qla4_84xx_minidump_process_pollwr(ha, entry_hdr,
3171                                                                 &data_ptr);
3172                        if (rval != QLA_SUCCESS)
3173                                qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3174                        break;
3175                case QLA8XXX_RDNOP:
3176                default:
3177                        qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
3178                        break;
3179                }
3180
3181                data_collected = (uint8_t *)data_ptr - (uint8_t *)ha->fw_dump;
3182skip_nxt_entry:
3183                /*  next entry in the template */
3184                entry_hdr = (struct qla8xxx_minidump_entry_hdr *)
3185                                (((uint8_t *)entry_hdr) +
3186                                 entry_hdr->entry_size);
3187        }
3188
3189        if ((data_collected + ha->fw_dump_skip_size) != ha->fw_dump_size) {
3190                ql4_printk(KERN_INFO, ha,
3191                           "Dump data mismatch: Data collected: [0x%x], total_data_size:[0x%x]\n",
3192                           data_collected, ha->fw_dump_size);
3193                rval = QLA_ERROR;
3194                goto md_failed;
3195        }
3196
3197        DEBUG2(ql4_printk(KERN_INFO, ha, "Leaving fn: %s Last entry: 0x%x\n",
3198                          __func__, i));
3199md_failed:
3200        return rval;
3201}
3202
3203/**
3204 * qla4_8xxx_uevent_emit - Send uevent when the firmware dump is ready.
3205 * @ha: pointer to adapter structure
3206 * @code: uevent code to act upon
3207 **/
3208static void qla4_8xxx_uevent_emit(struct scsi_qla_host *ha, u32 code)
3209{
3210        char event_string[40];
3211        char *envp[] = { event_string, NULL };
3212
3213        switch (code) {
3214        case QL4_UEVENT_CODE_FW_DUMP:
3215                snprintf(event_string, sizeof(event_string), "FW_DUMP=%lu",
3216                         ha->host_no);
3217                break;
3218        default:
3219                /*do nothing*/
3220                break;
3221        }
3222
3223        kobject_uevent_env(&(&ha->pdev->dev)->kobj, KOBJ_CHANGE, envp);
3224}
3225
3226void qla4_8xxx_get_minidump(struct scsi_qla_host *ha)
3227{
3228        if (ql4xenablemd && test_bit(AF_FW_RECOVERY, &ha->flags) &&
3229            !test_bit(AF_82XX_FW_DUMPED, &ha->flags)) {
3230                if (!qla4_8xxx_collect_md_data(ha)) {
3231                        qla4_8xxx_uevent_emit(ha, QL4_UEVENT_CODE_FW_DUMP);
3232                        set_bit(AF_82XX_FW_DUMPED, &ha->flags);
3233                } else {
3234                        ql4_printk(KERN_INFO, ha, "%s: Unable to collect minidump\n",
3235                                   __func__);
3236                }
3237        }
3238}
3239
3240/**
3241 * qla4_8xxx_device_bootstrap - Initialize device, set DEV_READY, start fw
3242 * @ha: pointer to adapter structure
3243 *
3244 * Note: IDC lock must be held upon entry
3245 **/
3246int qla4_8xxx_device_bootstrap(struct scsi_qla_host *ha)
3247{
3248        int rval = QLA_ERROR;
3249        int i;
3250        uint32_t old_count, count;
3251        int need_reset = 0;
3252
3253        need_reset = ha->isp_ops->need_reset(ha);
3254
3255        if (need_reset) {
3256                /* We are trying to perform a recovery here. */
3257                if (test_bit(AF_FW_RECOVERY, &ha->flags))
3258                        ha->isp_ops->rom_lock_recovery(ha);
3259        } else  {
3260                old_count = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_ALIVE_COUNTER);
3261                for (i = 0; i < 10; i++) {
3262                        msleep(200);
3263                        count = qla4_8xxx_rd_direct(ha,
3264                                                    QLA8XXX_PEG_ALIVE_COUNTER);
3265                        if (count != old_count) {
3266                                rval = QLA_SUCCESS;
3267                                goto dev_ready;
3268                        }
3269                }
3270                ha->isp_ops->rom_lock_recovery(ha);
3271        }
3272
3273        /* set to DEV_INITIALIZING */
3274        ql4_printk(KERN_INFO, ha, "HW State: INITIALIZING\n");
3275        qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
3276                            QLA8XXX_DEV_INITIALIZING);
3277
3278        ha->isp_ops->idc_unlock(ha);
3279
3280        if (is_qla8022(ha))
3281                qla4_8xxx_get_minidump(ha);
3282
3283        rval = ha->isp_ops->restart_firmware(ha);
3284        ha->isp_ops->idc_lock(ha);
3285
3286        if (rval != QLA_SUCCESS) {
3287                ql4_printk(KERN_INFO, ha, "HW State: FAILED\n");
3288                qla4_8xxx_clear_drv_active(ha);
3289                qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
3290                                    QLA8XXX_DEV_FAILED);
3291                return rval;
3292        }
3293
3294dev_ready:
3295        ql4_printk(KERN_INFO, ha, "HW State: READY\n");
3296        qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, QLA8XXX_DEV_READY);
3297
3298        return rval;
3299}
3300
3301/**
3302 * qla4_82xx_need_reset_handler - Code to start reset sequence
3303 * @ha: pointer to adapter structure
3304 *
3305 * Note: IDC lock must be held upon entry
3306 **/
3307static void
3308qla4_82xx_need_reset_handler(struct scsi_qla_host *ha)
3309{
3310        uint32_t dev_state, drv_state, drv_active;
3311        uint32_t active_mask = 0xFFFFFFFF;
3312        unsigned long reset_timeout;
3313
3314        ql4_printk(KERN_INFO, ha,
3315                "Performing ISP error recovery\n");
3316
3317        if (test_and_clear_bit(AF_ONLINE, &ha->flags)) {
3318                qla4_82xx_idc_unlock(ha);
3319                ha->isp_ops->disable_intrs(ha);
3320                qla4_82xx_idc_lock(ha);
3321        }
3322
3323        if (!test_bit(AF_8XXX_RST_OWNER, &ha->flags)) {
3324                DEBUG2(ql4_printk(KERN_INFO, ha,
3325                                  "%s(%ld): reset acknowledged\n",
3326                                  __func__, ha->host_no));
3327                qla4_8xxx_set_rst_ready(ha);
3328        } else {
3329                active_mask = (~(1 << (ha->func_num * 4)));
3330        }
3331
3332        /* wait for 10 seconds for reset ack from all functions */
3333        reset_timeout = jiffies + (ha->nx_reset_timeout * HZ);
3334
3335        drv_state = qla4_82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
3336        drv_active = qla4_82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3337
3338        ql4_printk(KERN_INFO, ha,
3339                "%s(%ld): drv_state = 0x%x, drv_active = 0x%x\n",
3340                __func__, ha->host_no, drv_state, drv_active);
3341
3342        while (drv_state != (drv_active & active_mask)) {
3343                if (time_after_eq(jiffies, reset_timeout)) {
3344                        ql4_printk(KERN_INFO, ha,
3345                                   "%s: RESET TIMEOUT! drv_state: 0x%08x, drv_active: 0x%08x\n",
3346                                   DRIVER_NAME, drv_state, drv_active);
3347                        break;
3348                }
3349
3350                /*
3351                 * When reset_owner times out, check which functions
3352                 * acked/did not ack
3353                 */
3354                if (test_bit(AF_8XXX_RST_OWNER, &ha->flags)) {
3355                        ql4_printk(KERN_INFO, ha,
3356                                   "%s(%ld): drv_state = 0x%x, drv_active = 0x%x\n",
3357                                   __func__, ha->host_no, drv_state,
3358                                   drv_active);
3359                }
3360                qla4_82xx_idc_unlock(ha);
3361                msleep(1000);
3362                qla4_82xx_idc_lock(ha);
3363
3364                drv_state = qla4_82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
3365                drv_active = qla4_82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
3366        }
3367
3368        /* Clear RESET OWNER as we are not going to use it any further */
3369        clear_bit(AF_8XXX_RST_OWNER, &ha->flags);
3370
3371        dev_state = qla4_82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3372        ql4_printk(KERN_INFO, ha, "Device state is 0x%x = %s\n", dev_state,
3373                   dev_state < MAX_STATES ? qdev_state[dev_state] : "Unknown");
3374
3375        /* Force to DEV_COLD unless someone else is starting a reset */
3376        if (dev_state != QLA8XXX_DEV_INITIALIZING) {
3377                ql4_printk(KERN_INFO, ha, "HW State: COLD/RE-INIT\n");
3378                qla4_82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_COLD);
3379                qla4_8xxx_set_rst_ready(ha);
3380        }
3381}
3382
3383/**
3384 * qla4_8xxx_need_qsnt_handler - Code to start qsnt
3385 * @ha: pointer to adapter structure
3386 **/
3387void
3388qla4_8xxx_need_qsnt_handler(struct scsi_qla_host *ha)
3389{
3390        ha->isp_ops->idc_lock(ha);
3391        qla4_8xxx_set_qsnt_ready(ha);
3392        ha->isp_ops->idc_unlock(ha);
3393}
3394
3395static void qla4_82xx_set_idc_ver(struct scsi_qla_host *ha)
3396{
3397        int idc_ver;
3398        uint32_t drv_active;
3399
3400        drv_active = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_ACTIVE);
3401        if (drv_active == (1 << (ha->func_num * 4))) {
3402                qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_IDC_VERSION,
3403                                    QLA82XX_IDC_VERSION);
3404                ql4_printk(KERN_INFO, ha,
3405                           "%s: IDC version updated to %d\n", __func__,
3406                           QLA82XX_IDC_VERSION);
3407        } else {
3408                idc_ver = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_IDC_VERSION);
3409                if (QLA82XX_IDC_VERSION != idc_ver) {
3410                        ql4_printk(KERN_INFO, ha,
3411                                   "%s: qla4xxx driver IDC version %d is not compatible with IDC version %d of other drivers!\n",
3412                                   __func__, QLA82XX_IDC_VERSION, idc_ver);
3413                }
3414        }
3415}
3416
3417static int qla4_83xx_set_idc_ver(struct scsi_qla_host *ha)
3418{
3419        int idc_ver;
3420        uint32_t drv_active;
3421        int rval = QLA_SUCCESS;
3422
3423        drv_active = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_ACTIVE);
3424        if (drv_active == (1 << ha->func_num)) {
3425                idc_ver = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_IDC_VERSION);
3426                idc_ver &= (~0xFF);
3427                idc_ver |= QLA83XX_IDC_VER_MAJ_VALUE;
3428                qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_IDC_VERSION, idc_ver);
3429                ql4_printk(KERN_INFO, ha,
3430                           "%s: IDC version updated to %d\n", __func__,
3431                           idc_ver);
3432        } else {
3433                idc_ver = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_IDC_VERSION);
3434                idc_ver &= 0xFF;
3435                if (QLA83XX_IDC_VER_MAJ_VALUE != idc_ver) {
3436                        ql4_printk(KERN_INFO, ha,
3437                                   "%s: qla4xxx driver IDC version %d is not compatible with IDC version %d of other drivers!\n",
3438                                   __func__, QLA83XX_IDC_VER_MAJ_VALUE,
3439                                   idc_ver);
3440                        rval = QLA_ERROR;
3441                        goto exit_set_idc_ver;
3442                }
3443        }
3444
3445        /* Update IDC_MINOR_VERSION */
3446        idc_ver = qla4_83xx_rd_reg(ha, QLA83XX_CRB_IDC_VER_MINOR);
3447        idc_ver &= ~(0x03 << (ha->func_num * 2));
3448        idc_ver |= (QLA83XX_IDC_VER_MIN_VALUE << (ha->func_num * 2));
3449        qla4_83xx_wr_reg(ha, QLA83XX_CRB_IDC_VER_MINOR, idc_ver);
3450
3451exit_set_idc_ver:
3452        return rval;
3453}
3454
3455int qla4_8xxx_update_idc_reg(struct scsi_qla_host *ha)
3456{
3457        uint32_t drv_active;
3458        int rval = QLA_SUCCESS;
3459
3460        if (test_bit(AF_INIT_DONE, &ha->flags))
3461                goto exit_update_idc_reg;
3462
3463        ha->isp_ops->idc_lock(ha);
3464        qla4_8xxx_set_drv_active(ha);
3465
3466        /*
3467         * If we are the first driver to load and
3468         * ql4xdontresethba is not set, clear IDC_CTRL BIT0.
3469         */
3470        if (is_qla8032(ha) || is_qla8042(ha)) {
3471                drv_active = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_ACTIVE);
3472                if ((drv_active == (1 << ha->func_num)) && !ql4xdontresethba)
3473                        qla4_83xx_clear_idc_dontreset(ha);
3474        }
3475
3476        if (is_qla8022(ha)) {
3477                qla4_82xx_set_idc_ver(ha);
3478        } else if (is_qla8032(ha) || is_qla8042(ha)) {
3479                rval = qla4_83xx_set_idc_ver(ha);
3480                if (rval == QLA_ERROR)
3481                        qla4_8xxx_clear_drv_active(ha);
3482        }
3483
3484        ha->isp_ops->idc_unlock(ha);
3485
3486exit_update_idc_reg:
3487        return rval;
3488}
3489
3490/**
3491 * qla4_8xxx_device_state_handler - Adapter state machine
3492 * @ha: pointer to host adapter structure.
3493 *
3494 * Note: IDC lock must be UNLOCKED upon entry
3495 **/
3496int qla4_8xxx_device_state_handler(struct scsi_qla_host *ha)
3497{
3498        uint32_t dev_state;
3499        int rval = QLA_SUCCESS;
3500        unsigned long dev_init_timeout;
3501
3502        rval = qla4_8xxx_update_idc_reg(ha);
3503        if (rval == QLA_ERROR)
3504                goto exit_state_handler;
3505
3506        dev_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE);
3507        DEBUG2(ql4_printk(KERN_INFO, ha, "Device state is 0x%x = %s\n",
3508                          dev_state, dev_state < MAX_STATES ?
3509                          qdev_state[dev_state] : "Unknown"));
3510
3511        /* wait for 30 seconds for device to go ready */
3512        dev_init_timeout = jiffies + (ha->nx_dev_init_timeout * HZ);
3513
3514        ha->isp_ops->idc_lock(ha);
3515        while (1) {
3516
3517                if (time_after_eq(jiffies, dev_init_timeout)) {
3518                        ql4_printk(KERN_WARNING, ha,
3519                                   "%s: Device Init Failed 0x%x = %s\n",
3520                                   DRIVER_NAME,
3521                                   dev_state, dev_state < MAX_STATES ?
3522                                   qdev_state[dev_state] : "Unknown");
3523                        qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
3524                                            QLA8XXX_DEV_FAILED);
3525                }
3526
3527                dev_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE);
3528                ql4_printk(KERN_INFO, ha, "Device state is 0x%x = %s\n",
3529                           dev_state, dev_state < MAX_STATES ?
3530                           qdev_state[dev_state] : "Unknown");
3531
3532                /* NOTE: Make sure idc unlocked upon exit of switch statement */
3533                switch (dev_state) {
3534                case QLA8XXX_DEV_READY:
3535                        goto exit;
3536                case QLA8XXX_DEV_COLD:
3537                        rval = qla4_8xxx_device_bootstrap(ha);
3538                        goto exit;
3539                case QLA8XXX_DEV_INITIALIZING:
3540                        ha->isp_ops->idc_unlock(ha);
3541                        msleep(1000);
3542                        ha->isp_ops->idc_lock(ha);
3543                        break;
3544                case QLA8XXX_DEV_NEED_RESET:
3545                        /*
3546                         * For ISP8324 and ISP8042, if NEED_RESET is set by any
3547                         * driver, it should be honored, irrespective of
3548                         * IDC_CTRL DONTRESET_BIT0
3549                         */
3550                        if (is_qla8032(ha) || is_qla8042(ha)) {
3551                                qla4_83xx_need_reset_handler(ha);
3552                        } else if (is_qla8022(ha)) {
3553                                if (!ql4xdontresethba) {
3554                                        qla4_82xx_need_reset_handler(ha);
3555                                        /* Update timeout value after need
3556                                         * reset handler */
3557                                        dev_init_timeout = jiffies +
3558                                                (ha->nx_dev_init_timeout * HZ);
3559                                } else {
3560                                        ha->isp_ops->idc_unlock(ha);
3561                                        msleep(1000);
3562                                        ha->isp_ops->idc_lock(ha);
3563                                }
3564                        }
3565                        break;
3566                case QLA8XXX_DEV_NEED_QUIESCENT:
3567                        /* idc locked/unlocked in handler */
3568                        qla4_8xxx_need_qsnt_handler(ha);
3569                        break;
3570                case QLA8XXX_DEV_QUIESCENT:
3571                        ha->isp_ops->idc_unlock(ha);
3572                        msleep(1000);
3573                        ha->isp_ops->idc_lock(ha);
3574                        break;
3575                case QLA8XXX_DEV_FAILED:
3576                        ha->isp_ops->idc_unlock(ha);
3577                        qla4xxx_dead_adapter_cleanup(ha);
3578                        rval = QLA_ERROR;
3579                        ha->isp_ops->idc_lock(ha);
3580                        goto exit;
3581                default:
3582                        ha->isp_ops->idc_unlock(ha);
3583                        qla4xxx_dead_adapter_cleanup(ha);
3584                        rval = QLA_ERROR;
3585                        ha->isp_ops->idc_lock(ha);
3586                        goto exit;
3587                }
3588        }
3589exit:
3590        ha->isp_ops->idc_unlock(ha);
3591exit_state_handler:
3592        return rval;
3593}
3594
3595int qla4_8xxx_load_risc(struct scsi_qla_host *ha)
3596{
3597        int retval;
3598
3599        /* clear the interrupt */
3600        if (is_qla8032(ha) || is_qla8042(ha)) {
3601                writel(0, &ha->qla4_83xx_reg->risc_intr);
3602                readl(&ha->qla4_83xx_reg->risc_intr);
3603        } else if (is_qla8022(ha)) {
3604                writel(0, &ha->qla4_82xx_reg->host_int);
3605                readl(&ha->qla4_82xx_reg->host_int);
3606        }
3607
3608        retval = qla4_8xxx_device_state_handler(ha);
3609
3610        /* Initialize request and response queues. */
3611        if (retval == QLA_SUCCESS)
3612                qla4xxx_init_rings(ha);
3613
3614        if (retval == QLA_SUCCESS && !test_bit(AF_IRQ_ATTACHED, &ha->flags))
3615                retval = qla4xxx_request_irqs(ha);
3616
3617        return retval;
3618}
3619
3620/*****************************************************************************/
3621/* Flash Manipulation Routines                                               */
3622/*****************************************************************************/
3623
3624#define OPTROM_BURST_SIZE       0x1000
3625#define OPTROM_BURST_DWORDS     (OPTROM_BURST_SIZE / 4)
3626
3627#define FARX_DATA_FLAG  BIT_31
3628#define FARX_ACCESS_FLASH_CONF  0x7FFD0000
3629#define FARX_ACCESS_FLASH_DATA  0x7FF00000
3630
3631static inline uint32_t
3632flash_conf_addr(struct ql82xx_hw_data *hw, uint32_t faddr)
3633{
3634        return hw->flash_conf_off | faddr;
3635}
3636
3637static uint32_t *
3638qla4_82xx_read_flash_data(struct scsi_qla_host *ha, uint32_t *dwptr,
3639    uint32_t faddr, uint32_t length)
3640{
3641        uint32_t i;
3642        uint32_t val;
3643        int loops = 0;
3644        while ((qla4_82xx_rom_lock(ha) != 0) && (loops < 50000)) {
3645                udelay(100);
3646                cond_resched();
3647                loops++;
3648        }
3649        if (loops >= 50000) {
3650                ql4_printk(KERN_WARNING, ha, "ROM lock failed\n");
3651                return dwptr;
3652        }
3653
3654        /* Dword reads to flash. */
3655        for (i = 0; i < length/4; i++, faddr += 4) {
3656                if (qla4_82xx_do_rom_fast_read(ha, faddr, &val)) {
3657                        ql4_printk(KERN_WARNING, ha,
3658                            "Do ROM fast read failed\n");
3659                        goto done_read;
3660                }
3661                dwptr[i] = cpu_to_le32(val);
3662        }
3663
3664done_read:
3665        qla4_82xx_rom_unlock(ha);
3666        return dwptr;
3667}
3668
3669/*
3670 * Address and length are byte address
3671 */
3672static uint8_t *
3673qla4_82xx_read_optrom_data(struct scsi_qla_host *ha, uint8_t *buf,
3674                uint32_t offset, uint32_t length)
3675{
3676        qla4_82xx_read_flash_data(ha, (uint32_t *)buf, offset, length);
3677        return buf;
3678}
3679
3680static int
3681qla4_8xxx_find_flt_start(struct scsi_qla_host *ha, uint32_t *start)
3682{
3683        const char *loc, *locations[] = { "DEF", "PCI" };
3684
3685        /*
3686         * FLT-location structure resides after the last PCI region.
3687         */
3688
3689        /* Begin with sane defaults. */
3690        loc = locations[0];
3691        *start = FA_FLASH_LAYOUT_ADDR_82;
3692
3693        DEBUG2(ql4_printk(KERN_INFO, ha, "FLTL[%s] = 0x%x.\n", loc, *start));
3694        return QLA_SUCCESS;
3695}
3696
3697static void
3698qla4_8xxx_get_flt_info(struct scsi_qla_host *ha, uint32_t flt_addr)
3699{
3700        const char *loc, *locations[] = { "DEF", "FLT" };
3701        uint16_t *wptr;
3702        uint16_t cnt, chksum;
3703        uint32_t start, status;
3704        struct qla_flt_header *flt;
3705        struct qla_flt_region *region;
3706        struct ql82xx_hw_data *hw = &ha->hw;
3707
3708        hw->flt_region_flt = flt_addr;
3709        wptr = (uint16_t *)ha->request_ring;
3710        flt = (struct qla_flt_header *)ha->request_ring;
3711        region = (struct qla_flt_region *)&flt[1];
3712
3713        if (is_qla8022(ha)) {
3714                qla4_82xx_read_optrom_data(ha, (uint8_t *)ha->request_ring,
3715                                           flt_addr << 2, OPTROM_BURST_SIZE);
3716        } else if (is_qla8032(ha) || is_qla8042(ha)) {
3717                status = qla4_83xx_flash_read_u32(ha, flt_addr << 2,
3718                                                  (uint8_t *)ha->request_ring,
3719                                                  0x400);
3720                if (status != QLA_SUCCESS)
3721                        goto no_flash_data;
3722        }
3723
3724        if (*wptr == cpu_to_le16(0xffff))
3725                goto no_flash_data;
3726        if (flt->version != cpu_to_le16(1)) {
3727                DEBUG2(ql4_printk(KERN_INFO, ha, "Unsupported FLT detected: "
3728                        "version=0x%x length=0x%x checksum=0x%x.\n",
3729                        le16_to_cpu(flt->version), le16_to_cpu(flt->length),
3730                        le16_to_cpu(flt->checksum)));
3731                goto no_flash_data;
3732        }
3733
3734        cnt = (sizeof(struct qla_flt_header) + le16_to_cpu(flt->length)) >> 1;
3735        for (chksum = 0; cnt; cnt--)
3736                chksum += le16_to_cpu(*wptr++);
3737        if (chksum) {
3738                DEBUG2(ql4_printk(KERN_INFO, ha, "Inconsistent FLT detected: "
3739                        "version=0x%x length=0x%x checksum=0x%x.\n",
3740                        le16_to_cpu(flt->version), le16_to_cpu(flt->length),
3741                        chksum));
3742                goto no_flash_data;
3743        }
3744
3745        loc = locations[1];
3746        cnt = le16_to_cpu(flt->length) / sizeof(struct qla_flt_region);
3747        for ( ; cnt; cnt--, region++) {
3748                /* Store addresses as DWORD offsets. */
3749                start = le32_to_cpu(region->start) >> 2;
3750
3751                DEBUG3(ql4_printk(KERN_DEBUG, ha, "FLT[%02x]: start=0x%x "
3752                    "end=0x%x size=0x%x.\n", le32_to_cpu(region->code), start,
3753                    le32_to_cpu(region->end) >> 2, le32_to_cpu(region->size)));
3754
3755                switch (le32_to_cpu(region->code) & 0xff) {
3756                case FLT_REG_FDT:
3757                        hw->flt_region_fdt = start;
3758                        break;
3759                case FLT_REG_BOOT_CODE_82:
3760                        hw->flt_region_boot = start;
3761                        break;
3762                case FLT_REG_FW_82:
3763                case FLT_REG_FW_82_1:
3764                        hw->flt_region_fw = start;
3765                        break;
3766                case FLT_REG_BOOTLOAD_82:
3767                        hw->flt_region_bootload = start;
3768                        break;
3769                case FLT_REG_ISCSI_PARAM:
3770                        hw->flt_iscsi_param =  start;
3771                        break;
3772                case FLT_REG_ISCSI_CHAP:
3773                        hw->flt_region_chap =  start;
3774                        hw->flt_chap_size =  le32_to_cpu(region->size);
3775                        break;
3776                case FLT_REG_ISCSI_DDB:
3777                        hw->flt_region_ddb =  start;
3778                        hw->flt_ddb_size =  le32_to_cpu(region->size);
3779                        break;
3780                }
3781        }
3782        goto done;
3783
3784no_flash_data:
3785        /* Use hardcoded defaults. */
3786        loc = locations[0];
3787
3788        hw->flt_region_fdt      = FA_FLASH_DESCR_ADDR_82;
3789        hw->flt_region_boot     = FA_BOOT_CODE_ADDR_82;
3790        hw->flt_region_bootload = FA_BOOT_LOAD_ADDR_82;
3791        hw->flt_region_fw       = FA_RISC_CODE_ADDR_82;
3792        hw->flt_region_chap     = FA_FLASH_ISCSI_CHAP >> 2;
3793        hw->flt_chap_size       = FA_FLASH_CHAP_SIZE;
3794        hw->flt_region_ddb      = FA_FLASH_ISCSI_DDB >> 2;
3795        hw->flt_ddb_size        = FA_FLASH_DDB_SIZE;
3796
3797done:
3798        DEBUG2(ql4_printk(KERN_INFO, ha,
3799                          "FLT[%s]: flt=0x%x fdt=0x%x boot=0x%x bootload=0x%x fw=0x%x chap=0x%x chap_size=0x%x ddb=0x%x  ddb_size=0x%x\n",
3800                          loc, hw->flt_region_flt, hw->flt_region_fdt,
3801                          hw->flt_region_boot, hw->flt_region_bootload,
3802                          hw->flt_region_fw, hw->flt_region_chap,
3803                          hw->flt_chap_size, hw->flt_region_ddb,
3804                          hw->flt_ddb_size));
3805}
3806
3807static void
3808qla4_82xx_get_fdt_info(struct scsi_qla_host *ha)
3809{
3810#define FLASH_BLK_SIZE_4K       0x1000
3811#define FLASH_BLK_SIZE_32K      0x8000
3812#define FLASH_BLK_SIZE_64K      0x10000
3813        const char *loc, *locations[] = { "MID", "FDT" };
3814        uint16_t cnt, chksum;
3815        uint16_t *wptr;
3816        struct qla_fdt_layout *fdt;
3817        uint16_t mid = 0;
3818        uint16_t fid = 0;
3819        struct ql82xx_hw_data *hw = &ha->hw;
3820
3821        hw->flash_conf_off = FARX_ACCESS_FLASH_CONF;
3822        hw->flash_data_off = FARX_ACCESS_FLASH_DATA;
3823
3824        wptr = (uint16_t *)ha->request_ring;
3825        fdt = (struct qla_fdt_layout *)ha->request_ring;
3826        qla4_82xx_read_optrom_data(ha, (uint8_t *)ha->request_ring,
3827            hw->flt_region_fdt << 2, OPTROM_BURST_SIZE);
3828
3829        if (*wptr == cpu_to_le16(0xffff))
3830                goto no_flash_data;
3831
3832        if (fdt->sig[0] != 'Q' || fdt->sig[1] != 'L' || fdt->sig[2] != 'I' ||
3833            fdt->sig[3] != 'D')
3834                goto no_flash_data;
3835
3836        for (cnt = 0, chksum = 0; cnt < sizeof(struct qla_fdt_layout) >> 1;
3837            cnt++)
3838                chksum += le16_to_cpu(*wptr++);
3839
3840        if (chksum) {
3841                DEBUG2(ql4_printk(KERN_INFO, ha, "Inconsistent FDT detected: "
3842                    "checksum=0x%x id=%c version=0x%x.\n", chksum, fdt->sig[0],
3843                    le16_to_cpu(fdt->version)));
3844                goto no_flash_data;
3845        }
3846
3847        loc = locations[1];
3848        mid = le16_to_cpu(fdt->man_id);
3849        fid = le16_to_cpu(fdt->id);
3850        hw->fdt_wrt_disable = fdt->wrt_disable_bits;
3851        hw->fdt_erase_cmd = flash_conf_addr(hw, 0x0300 | fdt->erase_cmd);
3852        hw->fdt_block_size = le32_to_cpu(fdt->block_size);
3853
3854        if (fdt->unprotect_sec_cmd) {
3855                hw->fdt_unprotect_sec_cmd = flash_conf_addr(hw, 0x0300 |
3856                    fdt->unprotect_sec_cmd);
3857                hw->fdt_protect_sec_cmd = fdt->protect_sec_cmd ?
3858                    flash_conf_addr(hw, 0x0300 | fdt->protect_sec_cmd) :
3859                    flash_conf_addr(hw, 0x0336);
3860        }
3861        goto done;
3862
3863no_flash_data:
3864        loc = locations[0];
3865        hw->fdt_block_size = FLASH_BLK_SIZE_64K;
3866done:
3867        DEBUG2(ql4_printk(KERN_INFO, ha, "FDT[%s]: (0x%x/0x%x) erase=0x%x "
3868                "pro=%x upro=%x wrtd=0x%x blk=0x%x.\n", loc, mid, fid,
3869                hw->fdt_erase_cmd, hw->fdt_protect_sec_cmd,
3870                hw->fdt_unprotect_sec_cmd, hw->fdt_wrt_disable,
3871                hw->fdt_block_size));
3872}
3873
3874static void
3875qla4_82xx_get_idc_param(struct scsi_qla_host *ha)
3876{
3877#define QLA82XX_IDC_PARAM_ADDR      0x003e885c
3878        uint32_t *wptr;
3879
3880        if (!is_qla8022(ha))
3881                return;
3882        wptr = (uint32_t *)ha->request_ring;
3883        qla4_82xx_read_optrom_data(ha, (uint8_t *)ha->request_ring,
3884                        QLA82XX_IDC_PARAM_ADDR , 8);
3885
3886        if (*wptr == cpu_to_le32(0xffffffff)) {
3887                ha->nx_dev_init_timeout = ROM_DEV_INIT_TIMEOUT;
3888                ha->nx_reset_timeout = ROM_DRV_RESET_ACK_TIMEOUT;
3889        } else {
3890                ha->nx_dev_init_timeout = le32_to_cpu(*wptr++);
3891                ha->nx_reset_timeout = le32_to_cpu(*wptr);
3892        }
3893
3894        DEBUG2(ql4_printk(KERN_DEBUG, ha,
3895                "ha->nx_dev_init_timeout = %d\n", ha->nx_dev_init_timeout));
3896        DEBUG2(ql4_printk(KERN_DEBUG, ha,
3897                "ha->nx_reset_timeout = %d\n", ha->nx_reset_timeout));
3898        return;
3899}
3900
3901void qla4_82xx_queue_mbox_cmd(struct scsi_qla_host *ha, uint32_t *mbx_cmd,
3902                              int in_count)
3903{
3904        int i;
3905
3906        /* Load all mailbox registers, except mailbox 0. */
3907        for (i = 1; i < in_count; i++)
3908                writel(mbx_cmd[i], &ha->qla4_82xx_reg->mailbox_in[i]);
3909
3910        /* Wakeup firmware  */
3911        writel(mbx_cmd[0], &ha->qla4_82xx_reg->mailbox_in[0]);
3912        readl(&ha->qla4_82xx_reg->mailbox_in[0]);
3913        writel(HINT_MBX_INT_PENDING, &ha->qla4_82xx_reg->hint);
3914        readl(&ha->qla4_82xx_reg->hint);
3915}
3916
3917void qla4_82xx_process_mbox_intr(struct scsi_qla_host *ha, int out_count)
3918{
3919        int intr_status;
3920
3921        intr_status = readl(&ha->qla4_82xx_reg->host_int);
3922        if (intr_status & ISRX_82XX_RISC_INT) {
3923                ha->mbox_status_count = out_count;
3924                intr_status = readl(&ha->qla4_82xx_reg->host_status);
3925                ha->isp_ops->interrupt_service_routine(ha, intr_status);
3926
3927                if (test_bit(AF_INTERRUPTS_ON, &ha->flags) &&
3928                    (!ha->pdev->msi_enabled && !ha->pdev->msix_enabled))
3929                        qla4_82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg,
3930                                        0xfbff);
3931        }
3932}
3933
3934int
3935qla4_8xxx_get_flash_info(struct scsi_qla_host *ha)
3936{
3937        int ret;
3938        uint32_t flt_addr;
3939
3940        ret = qla4_8xxx_find_flt_start(ha, &flt_addr);
3941        if (ret != QLA_SUCCESS)
3942                return ret;
3943
3944        qla4_8xxx_get_flt_info(ha, flt_addr);
3945        if (is_qla8022(ha)) {
3946                qla4_82xx_get_fdt_info(ha);
3947                qla4_82xx_get_idc_param(ha);
3948        } else if (is_qla8032(ha) || is_qla8042(ha)) {
3949                qla4_83xx_get_idc_param(ha);
3950        }
3951
3952        return QLA_SUCCESS;
3953}
3954
3955/**
3956 * qla4_8xxx_stop_firmware - stops firmware on specified adapter instance
3957 * @ha: pointer to host adapter structure.
3958 *
3959 * Remarks:
3960 * For iSCSI, throws away all I/O and AENs into bit bucket, so they will
3961 * not be available after successful return.  Driver must cleanup potential
3962 * outstanding I/O's after calling this funcion.
3963 **/
3964int
3965qla4_8xxx_stop_firmware(struct scsi_qla_host *ha)
3966{
3967        int status;
3968        uint32_t mbox_cmd[MBOX_REG_COUNT];
3969        uint32_t mbox_sts[MBOX_REG_COUNT];
3970
3971        memset(&mbox_cmd, 0, sizeof(mbox_cmd));
3972        memset(&mbox_sts, 0, sizeof(mbox_sts));
3973
3974        mbox_cmd[0] = MBOX_CMD_STOP_FW;
3975        status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1,
3976            &mbox_cmd[0], &mbox_sts[0]);
3977
3978        DEBUG2(printk("scsi%ld: %s: status = %d\n", ha->host_no,
3979            __func__, status));
3980        return status;
3981}
3982
3983/**
3984 * qla4_82xx_isp_reset - Resets ISP and aborts all outstanding commands.
3985 * @ha: pointer to host adapter structure.
3986 **/
3987int
3988qla4_82xx_isp_reset(struct scsi_qla_host *ha)
3989{
3990        int rval;
3991        uint32_t dev_state;
3992
3993        qla4_82xx_idc_lock(ha);
3994        dev_state = qla4_82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
3995
3996        if (dev_state == QLA8XXX_DEV_READY) {
3997                ql4_printk(KERN_INFO, ha, "HW State: NEED RESET\n");
3998                qla4_82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3999                    QLA8XXX_DEV_NEED_RESET);
4000                set_bit(AF_8XXX_RST_OWNER, &ha->flags);
4001        } else
4002                ql4_printk(KERN_INFO, ha, "HW State: DEVICE INITIALIZING\n");
4003
4004        qla4_82xx_idc_unlock(ha);
4005
4006        rval = qla4_8xxx_device_state_handler(ha);
4007
4008        qla4_82xx_idc_lock(ha);
4009        qla4_8xxx_clear_rst_ready(ha);
4010        qla4_82xx_idc_unlock(ha);
4011
4012        if (rval == QLA_SUCCESS) {
4013                ql4_printk(KERN_INFO, ha, "Clearing AF_RECOVERY in qla4_82xx_isp_reset\n");
4014                clear_bit(AF_FW_RECOVERY, &ha->flags);
4015        }
4016
4017        return rval;
4018}
4019
4020/**
4021 * qla4_8xxx_get_sys_info - get adapter MAC address(es) and serial number
4022 * @ha: pointer to host adapter structure.
4023 *
4024 **/
4025int qla4_8xxx_get_sys_info(struct scsi_qla_host *ha)
4026{
4027        uint32_t mbox_cmd[MBOX_REG_COUNT];
4028        uint32_t mbox_sts[MBOX_REG_COUNT];
4029        struct mbx_sys_info *sys_info;
4030        dma_addr_t sys_info_dma;
4031        int status = QLA_ERROR;
4032
4033        sys_info = dma_alloc_coherent(&ha->pdev->dev, sizeof(*sys_info),
4034                                      &sys_info_dma, GFP_KERNEL);
4035        if (sys_info == NULL) {
4036                DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n",
4037                    ha->host_no, __func__));
4038                return status;
4039        }
4040
4041        memset(&mbox_cmd, 0, sizeof(mbox_cmd));
4042        memset(&mbox_sts, 0, sizeof(mbox_sts));
4043
4044        mbox_cmd[0] = MBOX_CMD_GET_SYS_INFO;
4045        mbox_cmd[1] = LSDW(sys_info_dma);
4046        mbox_cmd[2] = MSDW(sys_info_dma);
4047        mbox_cmd[4] = sizeof(*sys_info);
4048
4049        if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 6, &mbox_cmd[0],
4050            &mbox_sts[0]) != QLA_SUCCESS) {
4051                DEBUG2(printk("scsi%ld: %s: GET_SYS_INFO failed\n",
4052                    ha->host_no, __func__));
4053                goto exit_validate_mac82;
4054        }
4055
4056        /* Make sure we receive the minimum required data to cache internally */
4057        if (((is_qla8032(ha) || is_qla8042(ha)) ? mbox_sts[3] : mbox_sts[4]) <
4058            offsetof(struct mbx_sys_info, reserved)) {
4059                DEBUG2(printk("scsi%ld: %s: GET_SYS_INFO data receive"
4060                    " error (%x)\n", ha->host_no, __func__, mbox_sts[4]));
4061                goto exit_validate_mac82;
4062        }
4063
4064        /* Save M.A.C. address & serial_number */
4065        ha->port_num = sys_info->port_num;
4066        memcpy(ha->my_mac, &sys_info->mac_addr[0],
4067            min(sizeof(ha->my_mac), sizeof(sys_info->mac_addr)));
4068        memcpy(ha->serial_number, &sys_info->serial_number,
4069            min(sizeof(ha->serial_number), sizeof(sys_info->serial_number)));
4070        memcpy(ha->model_name, &sys_info->board_id_str,
4071               min(sizeof(ha->model_name), sizeof(sys_info->board_id_str)));
4072        ha->phy_port_cnt = sys_info->phys_port_cnt;
4073        ha->phy_port_num = sys_info->port_num;
4074        ha->iscsi_pci_func_cnt = sys_info->iscsi_pci_func_cnt;
4075
4076        DEBUG2(printk("scsi%ld: %s: mac %pM serial %s\n",
4077            ha->host_no, __func__, ha->my_mac, ha->serial_number));
4078
4079        status = QLA_SUCCESS;
4080
4081exit_validate_mac82:
4082        dma_free_coherent(&ha->pdev->dev, sizeof(*sys_info), sys_info,
4083                          sys_info_dma);
4084        return status;
4085}
4086
4087/* Interrupt handling helpers. */
4088
4089int qla4_8xxx_intr_enable(struct scsi_qla_host *ha)
4090{
4091        uint32_t mbox_cmd[MBOX_REG_COUNT];
4092        uint32_t mbox_sts[MBOX_REG_COUNT];
4093
4094        DEBUG2(ql4_printk(KERN_INFO, ha, "%s\n", __func__));
4095
4096        memset(&mbox_cmd, 0, sizeof(mbox_cmd));
4097        memset(&mbox_sts, 0, sizeof(mbox_sts));
4098        mbox_cmd[0] = MBOX_CMD_ENABLE_INTRS;
4099        mbox_cmd[1] = INTR_ENABLE;
4100        if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0],
4101                &mbox_sts[0]) != QLA_SUCCESS) {
4102                DEBUG2(ql4_printk(KERN_INFO, ha,
4103                    "%s: MBOX_CMD_ENABLE_INTRS failed (0x%04x)\n",
4104                    __func__, mbox_sts[0]));
4105                return QLA_ERROR;
4106        }
4107        return QLA_SUCCESS;
4108}
4109
4110int qla4_8xxx_intr_disable(struct scsi_qla_host *ha)
4111{
4112        uint32_t mbox_cmd[MBOX_REG_COUNT];
4113        uint32_t mbox_sts[MBOX_REG_COUNT];
4114
4115        DEBUG2(ql4_printk(KERN_INFO, ha, "%s\n", __func__));
4116
4117        memset(&mbox_cmd, 0, sizeof(mbox_cmd));
4118        memset(&mbox_sts, 0, sizeof(mbox_sts));
4119        mbox_cmd[0] = MBOX_CMD_ENABLE_INTRS;
4120        mbox_cmd[1] = INTR_DISABLE;
4121        if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0],
4122            &mbox_sts[0]) != QLA_SUCCESS) {
4123                DEBUG2(ql4_printk(KERN_INFO, ha,
4124                        "%s: MBOX_CMD_ENABLE_INTRS failed (0x%04x)\n",
4125                        __func__, mbox_sts[0]));
4126                return QLA_ERROR;
4127        }
4128
4129        return QLA_SUCCESS;
4130}
4131
4132void
4133qla4_82xx_enable_intrs(struct scsi_qla_host *ha)
4134{
4135        qla4_8xxx_intr_enable(ha);
4136
4137        spin_lock_irq(&ha->hardware_lock);
4138        /* BIT 10 - reset */
4139        qla4_82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0xfbff);
4140        spin_unlock_irq(&ha->hardware_lock);
4141        set_bit(AF_INTERRUPTS_ON, &ha->flags);
4142}
4143
4144void
4145qla4_82xx_disable_intrs(struct scsi_qla_host *ha)
4146{
4147        if (test_and_clear_bit(AF_INTERRUPTS_ON, &ha->flags))
4148                qla4_8xxx_intr_disable(ha);
4149
4150        spin_lock_irq(&ha->hardware_lock);
4151        /* BIT 10 - set */
4152        qla4_82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0x0400);
4153        spin_unlock_irq(&ha->hardware_lock);
4154}
4155
4156int
4157qla4_8xxx_enable_msix(struct scsi_qla_host *ha)
4158{
4159        int ret;
4160
4161        ret = pci_alloc_irq_vectors(ha->pdev, QLA_MSIX_ENTRIES,
4162                        QLA_MSIX_ENTRIES, PCI_IRQ_MSIX);
4163        if (ret < 0) {
4164                ql4_printk(KERN_WARNING, ha,
4165                    "MSI-X: Failed to enable support -- %d/%d\n",
4166                    QLA_MSIX_ENTRIES, ret);
4167                return ret;
4168        }
4169
4170        ret = request_irq(pci_irq_vector(ha->pdev, 0),
4171                        qla4_8xxx_default_intr_handler, 0, "qla4xxx (default)",
4172                        ha);
4173        if (ret)
4174                goto out_free_vectors;
4175
4176        ret = request_irq(pci_irq_vector(ha->pdev, 1),
4177                        qla4_8xxx_msix_rsp_q, 0, "qla4xxx (rsp_q)", ha);
4178        if (ret)
4179                goto out_free_default_irq;
4180
4181        return 0;
4182
4183out_free_default_irq:
4184        free_irq(pci_irq_vector(ha->pdev, 0), ha);
4185out_free_vectors:
4186        pci_free_irq_vectors(ha->pdev);
4187        return ret;
4188}
4189
4190int qla4_8xxx_check_init_adapter_retry(struct scsi_qla_host *ha)
4191{
4192        int status = QLA_SUCCESS;
4193
4194        /* Dont retry adapter initialization if IRQ allocation failed */
4195        if (!test_bit(AF_IRQ_ATTACHED, &ha->flags)) {
4196                ql4_printk(KERN_WARNING, ha, "%s: Skipping retry of adapter initialization as IRQs are not attached\n",
4197                           __func__);
4198                status = QLA_ERROR;
4199                goto exit_init_adapter_failure;
4200        }
4201
4202        /* Since interrupts are registered in start_firmware for
4203         * 8xxx, release them here if initialize_adapter fails
4204         * and retry adapter initialization */
4205        qla4xxx_free_irqs(ha);
4206
4207exit_init_adapter_failure:
4208        return status;
4209}
4210