linux/drivers/net/ethernet/qlogic/netxen/netxen_nic_hw.c
<<
>>
Prefs
   1// SPDX-License-Identifier: GPL-2.0-or-later
   2/*
   3 * Copyright (C) 2003 - 2009 NetXen, Inc.
   4 * Copyright (C) 2009 - QLogic Corporation.
   5 * All rights reserved.
   6 */
   7
   8#include <linux/io-64-nonatomic-lo-hi.h>
   9#include <linux/slab.h>
  10#include "netxen_nic.h"
  11#include "netxen_nic_hw.h"
  12
  13#include <net/ip.h>
  14
  15#define MASK(n) ((1ULL<<(n))-1)
  16#define MN_WIN(addr) (((addr & 0x1fc0000) >> 1) | ((addr >> 25) & 0x3ff))
  17#define OCM_WIN(addr) (((addr & 0x1ff0000) >> 1) | ((addr >> 25) & 0x3ff))
  18#define MS_WIN(addr) (addr & 0x0ffc0000)
  19
  20#define GET_MEM_OFFS_2M(addr) (addr & MASK(18))
  21
  22#define CRB_BLK(off)    ((off >> 20) & 0x3f)
  23#define CRB_SUBBLK(off) ((off >> 16) & 0xf)
  24#define CRB_WINDOW_2M   (0x130060)
  25#define CRB_HI(off)     ((crb_hub_agt[CRB_BLK(off)] << 20) | ((off) & 0xf0000))
  26#define CRB_INDIRECT_2M (0x1e0000UL)
  27
  28static void netxen_nic_io_write_128M(struct netxen_adapter *adapter,
  29                void __iomem *addr, u32 data);
  30static u32 netxen_nic_io_read_128M(struct netxen_adapter *adapter,
  31                void __iomem *addr);
  32
  33#define PCI_OFFSET_FIRST_RANGE(adapter, off)    \
  34        ((adapter)->ahw.pci_base0 + (off))
  35#define PCI_OFFSET_SECOND_RANGE(adapter, off)   \
  36        ((adapter)->ahw.pci_base1 + (off) - SECOND_PAGE_GROUP_START)
  37#define PCI_OFFSET_THIRD_RANGE(adapter, off)    \
  38        ((adapter)->ahw.pci_base2 + (off) - THIRD_PAGE_GROUP_START)
  39
  40static void __iomem *pci_base_offset(struct netxen_adapter *adapter,
  41                                            unsigned long off)
  42{
  43        if (ADDR_IN_RANGE(off, FIRST_PAGE_GROUP_START, FIRST_PAGE_GROUP_END))
  44                return PCI_OFFSET_FIRST_RANGE(adapter, off);
  45
  46        if (ADDR_IN_RANGE(off, SECOND_PAGE_GROUP_START, SECOND_PAGE_GROUP_END))
  47                return PCI_OFFSET_SECOND_RANGE(adapter, off);
  48
  49        if (ADDR_IN_RANGE(off, THIRD_PAGE_GROUP_START, THIRD_PAGE_GROUP_END))
  50                return PCI_OFFSET_THIRD_RANGE(adapter, off);
  51
  52        return NULL;
  53}
  54
  55static crb_128M_2M_block_map_t
  56crb_128M_2M_map[64] __cacheline_aligned_in_smp = {
  57    {{{0, 0,         0,         0} } },         /* 0: PCI */
  58    {{{1, 0x0100000, 0x0102000, 0x120000},      /* 1: PCIE */
  59          {1, 0x0110000, 0x0120000, 0x130000},
  60          {1, 0x0120000, 0x0122000, 0x124000},
  61          {1, 0x0130000, 0x0132000, 0x126000},
  62          {1, 0x0140000, 0x0142000, 0x128000},
  63          {1, 0x0150000, 0x0152000, 0x12a000},
  64          {1, 0x0160000, 0x0170000, 0x110000},
  65          {1, 0x0170000, 0x0172000, 0x12e000},
  66          {0, 0x0000000, 0x0000000, 0x000000},
  67          {0, 0x0000000, 0x0000000, 0x000000},
  68          {0, 0x0000000, 0x0000000, 0x000000},
  69          {0, 0x0000000, 0x0000000, 0x000000},
  70          {0, 0x0000000, 0x0000000, 0x000000},
  71          {0, 0x0000000, 0x0000000, 0x000000},
  72          {1, 0x01e0000, 0x01e0800, 0x122000},
  73          {0, 0x0000000, 0x0000000, 0x000000} } },
  74        {{{1, 0x0200000, 0x0210000, 0x180000} } },/* 2: MN */
  75    {{{0, 0,         0,         0} } },     /* 3: */
  76    {{{1, 0x0400000, 0x0401000, 0x169000} } },/* 4: P2NR1 */
  77    {{{1, 0x0500000, 0x0510000, 0x140000} } },/* 5: SRE   */
  78    {{{1, 0x0600000, 0x0610000, 0x1c0000} } },/* 6: NIU   */
  79    {{{1, 0x0700000, 0x0704000, 0x1b8000} } },/* 7: QM    */
  80    {{{1, 0x0800000, 0x0802000, 0x170000},  /* 8: SQM0  */
  81      {0, 0x0000000, 0x0000000, 0x000000},
  82      {0, 0x0000000, 0x0000000, 0x000000},
  83      {0, 0x0000000, 0x0000000, 0x000000},
  84      {0, 0x0000000, 0x0000000, 0x000000},
  85      {0, 0x0000000, 0x0000000, 0x000000},
  86      {0, 0x0000000, 0x0000000, 0x000000},
  87      {0, 0x0000000, 0x0000000, 0x000000},
  88      {0, 0x0000000, 0x0000000, 0x000000},
  89      {0, 0x0000000, 0x0000000, 0x000000},
  90      {0, 0x0000000, 0x0000000, 0x000000},
  91      {0, 0x0000000, 0x0000000, 0x000000},
  92      {0, 0x0000000, 0x0000000, 0x000000},
  93      {0, 0x0000000, 0x0000000, 0x000000},
  94      {0, 0x0000000, 0x0000000, 0x000000},
  95      {1, 0x08f0000, 0x08f2000, 0x172000} } },
  96    {{{1, 0x0900000, 0x0902000, 0x174000},      /* 9: SQM1*/
  97      {0, 0x0000000, 0x0000000, 0x000000},
  98      {0, 0x0000000, 0x0000000, 0x000000},
  99      {0, 0x0000000, 0x0000000, 0x000000},
 100      {0, 0x0000000, 0x0000000, 0x000000},
 101      {0, 0x0000000, 0x0000000, 0x000000},
 102      {0, 0x0000000, 0x0000000, 0x000000},
 103      {0, 0x0000000, 0x0000000, 0x000000},
 104      {0, 0x0000000, 0x0000000, 0x000000},
 105      {0, 0x0000000, 0x0000000, 0x000000},
 106      {0, 0x0000000, 0x0000000, 0x000000},
 107      {0, 0x0000000, 0x0000000, 0x000000},
 108      {0, 0x0000000, 0x0000000, 0x000000},
 109      {0, 0x0000000, 0x0000000, 0x000000},
 110      {0, 0x0000000, 0x0000000, 0x000000},
 111      {1, 0x09f0000, 0x09f2000, 0x176000} } },
 112    {{{0, 0x0a00000, 0x0a02000, 0x178000},      /* 10: SQM2*/
 113      {0, 0x0000000, 0x0000000, 0x000000},
 114      {0, 0x0000000, 0x0000000, 0x000000},
 115      {0, 0x0000000, 0x0000000, 0x000000},
 116      {0, 0x0000000, 0x0000000, 0x000000},
 117      {0, 0x0000000, 0x0000000, 0x000000},
 118      {0, 0x0000000, 0x0000000, 0x000000},
 119      {0, 0x0000000, 0x0000000, 0x000000},
 120      {0, 0x0000000, 0x0000000, 0x000000},
 121      {0, 0x0000000, 0x0000000, 0x000000},
 122      {0, 0x0000000, 0x0000000, 0x000000},
 123      {0, 0x0000000, 0x0000000, 0x000000},
 124      {0, 0x0000000, 0x0000000, 0x000000},
 125      {0, 0x0000000, 0x0000000, 0x000000},
 126      {0, 0x0000000, 0x0000000, 0x000000},
 127      {1, 0x0af0000, 0x0af2000, 0x17a000} } },
 128    {{{0, 0x0b00000, 0x0b02000, 0x17c000},      /* 11: SQM3*/
 129      {0, 0x0000000, 0x0000000, 0x000000},
 130      {0, 0x0000000, 0x0000000, 0x000000},
 131      {0, 0x0000000, 0x0000000, 0x000000},
 132      {0, 0x0000000, 0x0000000, 0x000000},
 133      {0, 0x0000000, 0x0000000, 0x000000},
 134      {0, 0x0000000, 0x0000000, 0x000000},
 135      {0, 0x0000000, 0x0000000, 0x000000},
 136      {0, 0x0000000, 0x0000000, 0x000000},
 137      {0, 0x0000000, 0x0000000, 0x000000},
 138      {0, 0x0000000, 0x0000000, 0x000000},
 139      {0, 0x0000000, 0x0000000, 0x000000},
 140      {0, 0x0000000, 0x0000000, 0x000000},
 141      {0, 0x0000000, 0x0000000, 0x000000},
 142      {0, 0x0000000, 0x0000000, 0x000000},
 143      {1, 0x0bf0000, 0x0bf2000, 0x17e000} } },
 144        {{{1, 0x0c00000, 0x0c04000, 0x1d4000} } },/* 12: I2Q */
 145        {{{1, 0x0d00000, 0x0d04000, 0x1a4000} } },/* 13: TMR */
 146        {{{1, 0x0e00000, 0x0e04000, 0x1a0000} } },/* 14: ROMUSB */
 147        {{{1, 0x0f00000, 0x0f01000, 0x164000} } },/* 15: PEG4 */
 148        {{{0, 0x1000000, 0x1004000, 0x1a8000} } },/* 16: XDMA */
 149        {{{1, 0x1100000, 0x1101000, 0x160000} } },/* 17: PEG0 */
 150        {{{1, 0x1200000, 0x1201000, 0x161000} } },/* 18: PEG1 */
 151        {{{1, 0x1300000, 0x1301000, 0x162000} } },/* 19: PEG2 */
 152        {{{1, 0x1400000, 0x1401000, 0x163000} } },/* 20: PEG3 */
 153        {{{1, 0x1500000, 0x1501000, 0x165000} } },/* 21: P2ND */
 154        {{{1, 0x1600000, 0x1601000, 0x166000} } },/* 22: P2NI */
 155        {{{0, 0,         0,         0} } },     /* 23: */
 156        {{{0, 0,         0,         0} } },     /* 24: */
 157        {{{0, 0,         0,         0} } },     /* 25: */
 158        {{{0, 0,         0,         0} } },     /* 26: */
 159        {{{0, 0,         0,         0} } },     /* 27: */
 160        {{{0, 0,         0,         0} } },     /* 28: */
 161        {{{1, 0x1d00000, 0x1d10000, 0x190000} } },/* 29: MS */
 162    {{{1, 0x1e00000, 0x1e01000, 0x16a000} } },/* 30: P2NR2 */
 163    {{{1, 0x1f00000, 0x1f10000, 0x150000} } },/* 31: EPG */
 164        {{{0} } },                              /* 32: PCI */
 165        {{{1, 0x2100000, 0x2102000, 0x120000},  /* 33: PCIE */
 166          {1, 0x2110000, 0x2120000, 0x130000},
 167          {1, 0x2120000, 0x2122000, 0x124000},
 168          {1, 0x2130000, 0x2132000, 0x126000},
 169          {1, 0x2140000, 0x2142000, 0x128000},
 170          {1, 0x2150000, 0x2152000, 0x12a000},
 171          {1, 0x2160000, 0x2170000, 0x110000},
 172          {1, 0x2170000, 0x2172000, 0x12e000},
 173          {0, 0x0000000, 0x0000000, 0x000000},
 174          {0, 0x0000000, 0x0000000, 0x000000},
 175          {0, 0x0000000, 0x0000000, 0x000000},
 176          {0, 0x0000000, 0x0000000, 0x000000},
 177          {0, 0x0000000, 0x0000000, 0x000000},
 178          {0, 0x0000000, 0x0000000, 0x000000},
 179          {0, 0x0000000, 0x0000000, 0x000000},
 180          {0, 0x0000000, 0x0000000, 0x000000} } },
 181        {{{1, 0x2200000, 0x2204000, 0x1b0000} } },/* 34: CAM */
 182        {{{0} } },                              /* 35: */
 183        {{{0} } },                              /* 36: */
 184        {{{0} } },                              /* 37: */
 185        {{{0} } },                              /* 38: */
 186        {{{0} } },                              /* 39: */
 187        {{{1, 0x2800000, 0x2804000, 0x1a4000} } },/* 40: TMR */
 188        {{{1, 0x2900000, 0x2901000, 0x16b000} } },/* 41: P2NR3 */
 189        {{{1, 0x2a00000, 0x2a00400, 0x1ac400} } },/* 42: RPMX1 */
 190        {{{1, 0x2b00000, 0x2b00400, 0x1ac800} } },/* 43: RPMX2 */
 191        {{{1, 0x2c00000, 0x2c00400, 0x1acc00} } },/* 44: RPMX3 */
 192        {{{1, 0x2d00000, 0x2d00400, 0x1ad000} } },/* 45: RPMX4 */
 193        {{{1, 0x2e00000, 0x2e00400, 0x1ad400} } },/* 46: RPMX5 */
 194        {{{1, 0x2f00000, 0x2f00400, 0x1ad800} } },/* 47: RPMX6 */
 195        {{{1, 0x3000000, 0x3000400, 0x1adc00} } },/* 48: RPMX7 */
 196        {{{0, 0x3100000, 0x3104000, 0x1a8000} } },/* 49: XDMA */
 197        {{{1, 0x3200000, 0x3204000, 0x1d4000} } },/* 50: I2Q */
 198        {{{1, 0x3300000, 0x3304000, 0x1a0000} } },/* 51: ROMUSB */
 199        {{{0} } },                              /* 52: */
 200        {{{1, 0x3500000, 0x3500400, 0x1ac000} } },/* 53: RPMX0 */
 201        {{{1, 0x3600000, 0x3600400, 0x1ae000} } },/* 54: RPMX8 */
 202        {{{1, 0x3700000, 0x3700400, 0x1ae400} } },/* 55: RPMX9 */
 203        {{{1, 0x3800000, 0x3804000, 0x1d0000} } },/* 56: OCM0 */
 204        {{{1, 0x3900000, 0x3904000, 0x1b4000} } },/* 57: CRYPTO */
 205        {{{1, 0x3a00000, 0x3a04000, 0x1d8000} } },/* 58: SMB */
 206        {{{0} } },                              /* 59: I2C0 */
 207        {{{0} } },                              /* 60: I2C1 */
 208        {{{1, 0x3d00000, 0x3d04000, 0x1d8000} } },/* 61: LPC */
 209        {{{1, 0x3e00000, 0x3e01000, 0x167000} } },/* 62: P2NC */
 210        {{{1, 0x3f00000, 0x3f01000, 0x168000} } }       /* 63: P2NR0 */
 211};
 212
 213/*
 214 * top 12 bits of crb internal address (hub, agent)
 215 */
 216static unsigned crb_hub_agt[64] =
 217{
 218        0,
 219        NETXEN_HW_CRB_HUB_AGT_ADR_PS,
 220        NETXEN_HW_CRB_HUB_AGT_ADR_MN,
 221        NETXEN_HW_CRB_HUB_AGT_ADR_MS,
 222        0,
 223        NETXEN_HW_CRB_HUB_AGT_ADR_SRE,
 224        NETXEN_HW_CRB_HUB_AGT_ADR_NIU,
 225        NETXEN_HW_CRB_HUB_AGT_ADR_QMN,
 226        NETXEN_HW_CRB_HUB_AGT_ADR_SQN0,
 227        NETXEN_HW_CRB_HUB_AGT_ADR_SQN1,
 228        NETXEN_HW_CRB_HUB_AGT_ADR_SQN2,
 229        NETXEN_HW_CRB_HUB_AGT_ADR_SQN3,
 230        NETXEN_HW_CRB_HUB_AGT_ADR_I2Q,
 231        NETXEN_HW_CRB_HUB_AGT_ADR_TIMR,
 232        NETXEN_HW_CRB_HUB_AGT_ADR_ROMUSB,
 233        NETXEN_HW_CRB_HUB_AGT_ADR_PGN4,
 234        NETXEN_HW_CRB_HUB_AGT_ADR_XDMA,
 235        NETXEN_HW_CRB_HUB_AGT_ADR_PGN0,
 236        NETXEN_HW_CRB_HUB_AGT_ADR_PGN1,
 237        NETXEN_HW_CRB_HUB_AGT_ADR_PGN2,
 238        NETXEN_HW_CRB_HUB_AGT_ADR_PGN3,
 239        NETXEN_HW_CRB_HUB_AGT_ADR_PGND,
 240        NETXEN_HW_CRB_HUB_AGT_ADR_PGNI,
 241        NETXEN_HW_CRB_HUB_AGT_ADR_PGS0,
 242        NETXEN_HW_CRB_HUB_AGT_ADR_PGS1,
 243        NETXEN_HW_CRB_HUB_AGT_ADR_PGS2,
 244        NETXEN_HW_CRB_HUB_AGT_ADR_PGS3,
 245        0,
 246        NETXEN_HW_CRB_HUB_AGT_ADR_PGSI,
 247        NETXEN_HW_CRB_HUB_AGT_ADR_SN,
 248        0,
 249        NETXEN_HW_CRB_HUB_AGT_ADR_EG,
 250        0,
 251        NETXEN_HW_CRB_HUB_AGT_ADR_PS,
 252        NETXEN_HW_CRB_HUB_AGT_ADR_CAM,
 253        0,
 254        0,
 255        0,
 256        0,
 257        0,
 258        NETXEN_HW_CRB_HUB_AGT_ADR_TIMR,
 259        0,
 260        NETXEN_HW_CRB_HUB_AGT_ADR_RPMX1,
 261        NETXEN_HW_CRB_HUB_AGT_ADR_RPMX2,
 262        NETXEN_HW_CRB_HUB_AGT_ADR_RPMX3,
 263        NETXEN_HW_CRB_HUB_AGT_ADR_RPMX4,
 264        NETXEN_HW_CRB_HUB_AGT_ADR_RPMX5,
 265        NETXEN_HW_CRB_HUB_AGT_ADR_RPMX6,
 266        NETXEN_HW_CRB_HUB_AGT_ADR_RPMX7,
 267        NETXEN_HW_CRB_HUB_AGT_ADR_XDMA,
 268        NETXEN_HW_CRB_HUB_AGT_ADR_I2Q,
 269        NETXEN_HW_CRB_HUB_AGT_ADR_ROMUSB,
 270        0,
 271        NETXEN_HW_CRB_HUB_AGT_ADR_RPMX0,
 272        NETXEN_HW_CRB_HUB_AGT_ADR_RPMX8,
 273        NETXEN_HW_CRB_HUB_AGT_ADR_RPMX9,
 274        NETXEN_HW_CRB_HUB_AGT_ADR_OCM0,
 275        0,
 276        NETXEN_HW_CRB_HUB_AGT_ADR_SMB,
 277        NETXEN_HW_CRB_HUB_AGT_ADR_I2C0,
 278        NETXEN_HW_CRB_HUB_AGT_ADR_I2C1,
 279        0,
 280        NETXEN_HW_CRB_HUB_AGT_ADR_PGNC,
 281        0,
 282};
 283
 284/*  PCI Windowing for DDR regions.  */
 285
 286#define NETXEN_WINDOW_ONE       0x2000000 /*CRB Window: bit 25 of CRB address */
 287
 288#define NETXEN_PCIE_SEM_TIMEOUT 10000
 289
 290static int netxen_nic_set_mtu_xgb(struct netxen_adapter *adapter, int new_mtu);
 291
 292int
 293netxen_pcie_sem_lock(struct netxen_adapter *adapter, int sem, u32 id_reg)
 294{
 295        int done = 0, timeout = 0;
 296
 297        while (!done) {
 298                done = NXRD32(adapter, NETXEN_PCIE_REG(PCIE_SEM_LOCK(sem)));
 299                if (done == 1)
 300                        break;
 301                if (++timeout >= NETXEN_PCIE_SEM_TIMEOUT)
 302                        return -EIO;
 303                msleep(1);
 304        }
 305
 306        if (id_reg)
 307                NXWR32(adapter, id_reg, adapter->portnum);
 308
 309        return 0;
 310}
 311
 312void
 313netxen_pcie_sem_unlock(struct netxen_adapter *adapter, int sem)
 314{
 315        NXRD32(adapter, NETXEN_PCIE_REG(PCIE_SEM_UNLOCK(sem)));
 316}
 317
 318static int netxen_niu_xg_init_port(struct netxen_adapter *adapter, int port)
 319{
 320        if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
 321                NXWR32(adapter, NETXEN_NIU_XGE_CONFIG_1+(0x10000*port), 0x1447);
 322                NXWR32(adapter, NETXEN_NIU_XGE_CONFIG_0+(0x10000*port), 0x5);
 323        }
 324
 325        return 0;
 326}
 327
 328/* Disable an XG interface */
 329static int netxen_niu_disable_xg_port(struct netxen_adapter *adapter)
 330{
 331        __u32 mac_cfg;
 332        u32 port = adapter->physical_port;
 333
 334        if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
 335                return 0;
 336
 337        if (port >= NETXEN_NIU_MAX_XG_PORTS)
 338                return -EINVAL;
 339
 340        mac_cfg = 0;
 341        if (NXWR32(adapter,
 342                        NETXEN_NIU_XGE_CONFIG_0 + (0x10000 * port), mac_cfg))
 343                return -EIO;
 344        return 0;
 345}
 346
 347#define NETXEN_UNICAST_ADDR(port, index) \
 348        (NETXEN_UNICAST_ADDR_BASE+(port*32)+(index*8))
 349#define NETXEN_MCAST_ADDR(port, index) \
 350        (NETXEN_MULTICAST_ADDR_BASE+(port*0x80)+(index*8))
 351#define MAC_HI(addr) \
 352        ((addr[2] << 16) | (addr[1] << 8) | (addr[0]))
 353#define MAC_LO(addr) \
 354        ((addr[5] << 16) | (addr[4] << 8) | (addr[3]))
 355
 356static int netxen_p2_nic_set_promisc(struct netxen_adapter *adapter, u32 mode)
 357{
 358        u32 mac_cfg;
 359        u32 cnt = 0;
 360        __u32 reg = 0x0200;
 361        u32 port = adapter->physical_port;
 362        u16 board_type = adapter->ahw.board_type;
 363
 364        if (port >= NETXEN_NIU_MAX_XG_PORTS)
 365                return -EINVAL;
 366
 367        mac_cfg = NXRD32(adapter, NETXEN_NIU_XGE_CONFIG_0 + (0x10000 * port));
 368        mac_cfg &= ~0x4;
 369        NXWR32(adapter, NETXEN_NIU_XGE_CONFIG_0 + (0x10000 * port), mac_cfg);
 370
 371        if ((board_type == NETXEN_BRDTYPE_P2_SB31_10G_IMEZ) ||
 372                        (board_type == NETXEN_BRDTYPE_P2_SB31_10G_HMEZ))
 373                reg = (0x20 << port);
 374
 375        NXWR32(adapter, NETXEN_NIU_FRAME_COUNT_SELECT, reg);
 376
 377        mdelay(10);
 378
 379        while (NXRD32(adapter, NETXEN_NIU_FRAME_COUNT) && ++cnt < 20)
 380                mdelay(10);
 381
 382        if (cnt < 20) {
 383
 384                reg = NXRD32(adapter,
 385                        NETXEN_NIU_XGE_CONFIG_1 + (0x10000 * port));
 386
 387                if (mode == NETXEN_NIU_PROMISC_MODE)
 388                        reg = (reg | 0x2000UL);
 389                else
 390                        reg = (reg & ~0x2000UL);
 391
 392                if (mode == NETXEN_NIU_ALLMULTI_MODE)
 393                        reg = (reg | 0x1000UL);
 394                else
 395                        reg = (reg & ~0x1000UL);
 396
 397                NXWR32(adapter,
 398                        NETXEN_NIU_XGE_CONFIG_1 + (0x10000 * port), reg);
 399        }
 400
 401        mac_cfg |= 0x4;
 402        NXWR32(adapter, NETXEN_NIU_XGE_CONFIG_0 + (0x10000 * port), mac_cfg);
 403
 404        return 0;
 405}
 406
 407static int netxen_p2_nic_set_mac_addr(struct netxen_adapter *adapter, u8 *addr)
 408{
 409        u32 mac_hi, mac_lo;
 410        u32 reg_hi, reg_lo;
 411
 412        u8 phy = adapter->physical_port;
 413
 414        if (phy >= NETXEN_NIU_MAX_XG_PORTS)
 415                return -EINVAL;
 416
 417        mac_lo = ((u32)addr[0] << 16) | ((u32)addr[1] << 24);
 418        mac_hi = addr[2] | ((u32)addr[3] << 8) |
 419                ((u32)addr[4] << 16) | ((u32)addr[5] << 24);
 420
 421        reg_lo = NETXEN_NIU_XGE_STATION_ADDR_0_1 + (0x10000 * phy);
 422        reg_hi = NETXEN_NIU_XGE_STATION_ADDR_0_HI + (0x10000 * phy);
 423
 424        /* write twice to flush */
 425        if (NXWR32(adapter, reg_lo, mac_lo) || NXWR32(adapter, reg_hi, mac_hi))
 426                return -EIO;
 427        if (NXWR32(adapter, reg_lo, mac_lo) || NXWR32(adapter, reg_hi, mac_hi))
 428                return -EIO;
 429
 430        return 0;
 431}
 432
 433static int
 434netxen_nic_enable_mcast_filter(struct netxen_adapter *adapter)
 435{
 436        u32     val = 0;
 437        u16 port = adapter->physical_port;
 438        u8 *addr = adapter->mac_addr;
 439
 440        if (adapter->mc_enabled)
 441                return 0;
 442
 443        val = NXRD32(adapter, NETXEN_MAC_ADDR_CNTL_REG);
 444        val |= (1UL << (28+port));
 445        NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
 446
 447        /* add broadcast addr to filter */
 448        val = 0xffffff;
 449        NXWR32(adapter, NETXEN_UNICAST_ADDR(port, 0), val);
 450        NXWR32(adapter, NETXEN_UNICAST_ADDR(port, 0)+4, val);
 451
 452        /* add station addr to filter */
 453        val = MAC_HI(addr);
 454        NXWR32(adapter, NETXEN_UNICAST_ADDR(port, 1), val);
 455        val = MAC_LO(addr);
 456        NXWR32(adapter, NETXEN_UNICAST_ADDR(port, 1)+4, val);
 457
 458        adapter->mc_enabled = 1;
 459        return 0;
 460}
 461
 462static int
 463netxen_nic_disable_mcast_filter(struct netxen_adapter *adapter)
 464{
 465        u32     val = 0;
 466        u16 port = adapter->physical_port;
 467        u8 *addr = adapter->mac_addr;
 468
 469        if (!adapter->mc_enabled)
 470                return 0;
 471
 472        val = NXRD32(adapter, NETXEN_MAC_ADDR_CNTL_REG);
 473        val &= ~(1UL << (28+port));
 474        NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
 475
 476        val = MAC_HI(addr);
 477        NXWR32(adapter, NETXEN_UNICAST_ADDR(port, 0), val);
 478        val = MAC_LO(addr);
 479        NXWR32(adapter, NETXEN_UNICAST_ADDR(port, 0)+4, val);
 480
 481        NXWR32(adapter, NETXEN_UNICAST_ADDR(port, 1), 0);
 482        NXWR32(adapter, NETXEN_UNICAST_ADDR(port, 1)+4, 0);
 483
 484        adapter->mc_enabled = 0;
 485        return 0;
 486}
 487
 488static int
 489netxen_nic_set_mcast_addr(struct netxen_adapter *adapter,
 490                int index, u8 *addr)
 491{
 492        u32 hi = 0, lo = 0;
 493        u16 port = adapter->physical_port;
 494
 495        lo = MAC_LO(addr);
 496        hi = MAC_HI(addr);
 497
 498        NXWR32(adapter, NETXEN_MCAST_ADDR(port, index), hi);
 499        NXWR32(adapter, NETXEN_MCAST_ADDR(port, index)+4, lo);
 500
 501        return 0;
 502}
 503
 504static void netxen_p2_nic_set_multi(struct net_device *netdev)
 505{
 506        struct netxen_adapter *adapter = netdev_priv(netdev);
 507        struct netdev_hw_addr *ha;
 508        u8 null_addr[ETH_ALEN];
 509        int i;
 510
 511        eth_zero_addr(null_addr);
 512
 513        if (netdev->flags & IFF_PROMISC) {
 514
 515                adapter->set_promisc(adapter,
 516                                NETXEN_NIU_PROMISC_MODE);
 517
 518                /* Full promiscuous mode */
 519                netxen_nic_disable_mcast_filter(adapter);
 520
 521                return;
 522        }
 523
 524        if (netdev_mc_empty(netdev)) {
 525                adapter->set_promisc(adapter,
 526                                NETXEN_NIU_NON_PROMISC_MODE);
 527                netxen_nic_disable_mcast_filter(adapter);
 528                return;
 529        }
 530
 531        adapter->set_promisc(adapter, NETXEN_NIU_ALLMULTI_MODE);
 532        if (netdev->flags & IFF_ALLMULTI ||
 533                        netdev_mc_count(netdev) > adapter->max_mc_count) {
 534                netxen_nic_disable_mcast_filter(adapter);
 535                return;
 536        }
 537
 538        netxen_nic_enable_mcast_filter(adapter);
 539
 540        i = 0;
 541        netdev_for_each_mc_addr(ha, netdev)
 542                netxen_nic_set_mcast_addr(adapter, i++, ha->addr);
 543
 544        /* Clear out remaining addresses */
 545        while (i < adapter->max_mc_count)
 546                netxen_nic_set_mcast_addr(adapter, i++, null_addr);
 547}
 548
 549static int
 550netxen_send_cmd_descs(struct netxen_adapter *adapter,
 551                struct cmd_desc_type0 *cmd_desc_arr, int nr_desc)
 552{
 553        u32 i, producer;
 554        struct netxen_cmd_buffer *pbuf;
 555        struct nx_host_tx_ring *tx_ring;
 556
 557        i = 0;
 558
 559        if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
 560                return -EIO;
 561
 562        tx_ring = adapter->tx_ring;
 563        __netif_tx_lock_bh(tx_ring->txq);
 564
 565        producer = tx_ring->producer;
 566
 567        if (nr_desc >= netxen_tx_avail(tx_ring)) {
 568                netif_tx_stop_queue(tx_ring->txq);
 569                smp_mb();
 570                if (netxen_tx_avail(tx_ring) > nr_desc) {
 571                        if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH)
 572                                netif_tx_wake_queue(tx_ring->txq);
 573                } else {
 574                        __netif_tx_unlock_bh(tx_ring->txq);
 575                        return -EBUSY;
 576                }
 577        }
 578
 579        do {
 580                pbuf = &tx_ring->cmd_buf_arr[producer];
 581                pbuf->skb = NULL;
 582                pbuf->frag_count = 0;
 583
 584                memcpy(&tx_ring->desc_head[producer],
 585                        &cmd_desc_arr[i], sizeof(struct cmd_desc_type0));
 586
 587                producer = get_next_index(producer, tx_ring->num_desc);
 588                i++;
 589
 590        } while (i != nr_desc);
 591
 592        tx_ring->producer = producer;
 593
 594        netxen_nic_update_cmd_producer(adapter, tx_ring);
 595
 596        __netif_tx_unlock_bh(tx_ring->txq);
 597
 598        return 0;
 599}
 600
 601static int
 602nx_p3_sre_macaddr_change(struct netxen_adapter *adapter, u8 *addr, unsigned op)
 603{
 604        nx_nic_req_t req;
 605        nx_mac_req_t *mac_req;
 606        u64 word;
 607
 608        memset(&req, 0, sizeof(nx_nic_req_t));
 609        req.qhdr = cpu_to_le64(NX_NIC_REQUEST << 23);
 610
 611        word = NX_MAC_EVENT | ((u64)adapter->portnum << 16);
 612        req.req_hdr = cpu_to_le64(word);
 613
 614        mac_req = (nx_mac_req_t *)&req.words[0];
 615        mac_req->op = op;
 616        memcpy(mac_req->mac_addr, addr, ETH_ALEN);
 617
 618        return netxen_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 619}
 620
 621static int nx_p3_nic_add_mac(struct netxen_adapter *adapter,
 622                const u8 *addr, struct list_head *del_list)
 623{
 624        struct list_head *head;
 625        nx_mac_list_t *cur;
 626
 627        /* look up if already exists */
 628        list_for_each(head, del_list) {
 629                cur = list_entry(head, nx_mac_list_t, list);
 630
 631                if (ether_addr_equal(addr, cur->mac_addr)) {
 632                        list_move_tail(head, &adapter->mac_list);
 633                        return 0;
 634                }
 635        }
 636
 637        cur = kzalloc(sizeof(nx_mac_list_t), GFP_ATOMIC);
 638        if (cur == NULL)
 639                return -ENOMEM;
 640
 641        memcpy(cur->mac_addr, addr, ETH_ALEN);
 642        list_add_tail(&cur->list, &adapter->mac_list);
 643        return nx_p3_sre_macaddr_change(adapter,
 644                                cur->mac_addr, NETXEN_MAC_ADD);
 645}
 646
 647static void netxen_p3_nic_set_multi(struct net_device *netdev)
 648{
 649        struct netxen_adapter *adapter = netdev_priv(netdev);
 650        struct netdev_hw_addr *ha;
 651        static const u8 bcast_addr[ETH_ALEN] = {
 652                0xff, 0xff, 0xff, 0xff, 0xff, 0xff
 653        };
 654        u32 mode = VPORT_MISS_MODE_DROP;
 655        LIST_HEAD(del_list);
 656        struct list_head *head;
 657        nx_mac_list_t *cur;
 658
 659        if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
 660                return;
 661
 662        list_splice_tail_init(&adapter->mac_list, &del_list);
 663
 664        nx_p3_nic_add_mac(adapter, adapter->mac_addr, &del_list);
 665        nx_p3_nic_add_mac(adapter, bcast_addr, &del_list);
 666
 667        if (netdev->flags & IFF_PROMISC) {
 668                mode = VPORT_MISS_MODE_ACCEPT_ALL;
 669                goto send_fw_cmd;
 670        }
 671
 672        if ((netdev->flags & IFF_ALLMULTI) ||
 673                        (netdev_mc_count(netdev) > adapter->max_mc_count)) {
 674                mode = VPORT_MISS_MODE_ACCEPT_MULTI;
 675                goto send_fw_cmd;
 676        }
 677
 678        if (!netdev_mc_empty(netdev)) {
 679                netdev_for_each_mc_addr(ha, netdev)
 680                        nx_p3_nic_add_mac(adapter, ha->addr, &del_list);
 681        }
 682
 683send_fw_cmd:
 684        adapter->set_promisc(adapter, mode);
 685        head = &del_list;
 686        while (!list_empty(head)) {
 687                cur = list_entry(head->next, nx_mac_list_t, list);
 688
 689                nx_p3_sre_macaddr_change(adapter,
 690                                cur->mac_addr, NETXEN_MAC_DEL);
 691                list_del(&cur->list);
 692                kfree(cur);
 693        }
 694}
 695
 696static int netxen_p3_nic_set_promisc(struct netxen_adapter *adapter, u32 mode)
 697{
 698        nx_nic_req_t req;
 699        u64 word;
 700
 701        memset(&req, 0, sizeof(nx_nic_req_t));
 702
 703        req.qhdr = cpu_to_le64(NX_HOST_REQUEST << 23);
 704
 705        word = NX_NIC_H2C_OPCODE_PROXY_SET_VPORT_MISS_MODE |
 706                        ((u64)adapter->portnum << 16);
 707        req.req_hdr = cpu_to_le64(word);
 708
 709        req.words[0] = cpu_to_le64(mode);
 710
 711        return netxen_send_cmd_descs(adapter,
 712                                (struct cmd_desc_type0 *)&req, 1);
 713}
 714
 715void netxen_p3_free_mac_list(struct netxen_adapter *adapter)
 716{
 717        nx_mac_list_t *cur;
 718        struct list_head *head = &adapter->mac_list;
 719
 720        while (!list_empty(head)) {
 721                cur = list_entry(head->next, nx_mac_list_t, list);
 722                nx_p3_sre_macaddr_change(adapter,
 723                                cur->mac_addr, NETXEN_MAC_DEL);
 724                list_del(&cur->list);
 725                kfree(cur);
 726        }
 727}
 728
 729static int netxen_p3_nic_set_mac_addr(struct netxen_adapter *adapter, u8 *addr)
 730{
 731        /* assuming caller has already copied new addr to netdev */
 732        netxen_p3_nic_set_multi(adapter->netdev);
 733        return 0;
 734}
 735
 736#define NETXEN_CONFIG_INTR_COALESCE     3
 737
 738/*
 739 * Send the interrupt coalescing parameter set by ethtool to the card.
 740 */
 741int netxen_config_intr_coalesce(struct netxen_adapter *adapter)
 742{
 743        nx_nic_req_t req;
 744        u64 word[6];
 745        int rv, i;
 746
 747        memset(&req, 0, sizeof(nx_nic_req_t));
 748        memset(word, 0, sizeof(word));
 749
 750        req.qhdr = cpu_to_le64(NX_HOST_REQUEST << 23);
 751
 752        word[0] = NETXEN_CONFIG_INTR_COALESCE | ((u64)adapter->portnum << 16);
 753        req.req_hdr = cpu_to_le64(word[0]);
 754
 755        memcpy(&word[0], &adapter->coal, sizeof(adapter->coal));
 756        for (i = 0; i < 6; i++)
 757                req.words[i] = cpu_to_le64(word[i]);
 758
 759        rv = netxen_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 760        if (rv != 0) {
 761                printk(KERN_ERR "ERROR. Could not send "
 762                        "interrupt coalescing parameters\n");
 763        }
 764
 765        return rv;
 766}
 767
 768int netxen_config_hw_lro(struct netxen_adapter *adapter, int enable)
 769{
 770        nx_nic_req_t req;
 771        u64 word;
 772        int rv = 0;
 773
 774        if (!test_bit(__NX_FW_ATTACHED, &adapter->state))
 775                return 0;
 776
 777        memset(&req, 0, sizeof(nx_nic_req_t));
 778
 779        req.qhdr = cpu_to_le64(NX_HOST_REQUEST << 23);
 780
 781        word = NX_NIC_H2C_OPCODE_CONFIG_HW_LRO | ((u64)adapter->portnum << 16);
 782        req.req_hdr = cpu_to_le64(word);
 783
 784        req.words[0] = cpu_to_le64(enable);
 785
 786        rv = netxen_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 787        if (rv != 0) {
 788                printk(KERN_ERR "ERROR. Could not send "
 789                        "configure hw lro request\n");
 790        }
 791
 792        return rv;
 793}
 794
 795int netxen_config_bridged_mode(struct netxen_adapter *adapter, int enable)
 796{
 797        nx_nic_req_t req;
 798        u64 word;
 799        int rv = 0;
 800
 801        if (!!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED) == enable)
 802                return rv;
 803
 804        memset(&req, 0, sizeof(nx_nic_req_t));
 805
 806        req.qhdr = cpu_to_le64(NX_HOST_REQUEST << 23);
 807
 808        word = NX_NIC_H2C_OPCODE_CONFIG_BRIDGING |
 809                ((u64)adapter->portnum << 16);
 810        req.req_hdr = cpu_to_le64(word);
 811
 812        req.words[0] = cpu_to_le64(enable);
 813
 814        rv = netxen_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 815        if (rv != 0) {
 816                printk(KERN_ERR "ERROR. Could not send "
 817                                "configure bridge mode request\n");
 818        }
 819
 820        adapter->flags ^= NETXEN_NIC_BRIDGE_ENABLED;
 821
 822        return rv;
 823}
 824
 825
 826#define RSS_HASHTYPE_IP_TCP     0x3
 827
 828int netxen_config_rss(struct netxen_adapter *adapter, int enable)
 829{
 830        nx_nic_req_t req;
 831        u64 word;
 832        int i, rv;
 833
 834        static const u64 key[] = {
 835                0xbeac01fa6a42b73bULL, 0x8030f20c77cb2da3ULL,
 836                0xae7b30b4d0ca2bcbULL, 0x43a38fb04167253dULL,
 837                0x255b0ec26d5a56daULL
 838        };
 839
 840
 841        memset(&req, 0, sizeof(nx_nic_req_t));
 842        req.qhdr = cpu_to_le64(NX_HOST_REQUEST << 23);
 843
 844        word = NX_NIC_H2C_OPCODE_CONFIG_RSS | ((u64)adapter->portnum << 16);
 845        req.req_hdr = cpu_to_le64(word);
 846
 847        /*
 848         * RSS request:
 849         * bits 3-0: hash_method
 850         *      5-4: hash_type_ipv4
 851         *      7-6: hash_type_ipv6
 852         *        8: enable
 853         *        9: use indirection table
 854         *    47-10: reserved
 855         *    63-48: indirection table mask
 856         */
 857        word =  ((u64)(RSS_HASHTYPE_IP_TCP & 0x3) << 4) |
 858                ((u64)(RSS_HASHTYPE_IP_TCP & 0x3) << 6) |
 859                ((u64)(enable & 0x1) << 8) |
 860                ((0x7ULL) << 48);
 861        req.words[0] = cpu_to_le64(word);
 862        for (i = 0; i < ARRAY_SIZE(key); i++)
 863                req.words[i+1] = cpu_to_le64(key[i]);
 864
 865
 866        rv = netxen_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 867        if (rv != 0) {
 868                printk(KERN_ERR "%s: could not configure RSS\n",
 869                                adapter->netdev->name);
 870        }
 871
 872        return rv;
 873}
 874
 875int netxen_config_ipaddr(struct netxen_adapter *adapter, __be32 ip, int cmd)
 876{
 877        nx_nic_req_t req;
 878        u64 word;
 879        int rv;
 880
 881        memset(&req, 0, sizeof(nx_nic_req_t));
 882        req.qhdr = cpu_to_le64(NX_HOST_REQUEST << 23);
 883
 884        word = NX_NIC_H2C_OPCODE_CONFIG_IPADDR | ((u64)adapter->portnum << 16);
 885        req.req_hdr = cpu_to_le64(word);
 886
 887        req.words[0] = cpu_to_le64(cmd);
 888        memcpy(&req.words[1], &ip, sizeof(u32));
 889
 890        rv = netxen_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 891        if (rv != 0) {
 892                printk(KERN_ERR "%s: could not notify %s IP 0x%x request\n",
 893                                adapter->netdev->name,
 894                                (cmd == NX_IP_UP) ? "Add" : "Remove", ip);
 895        }
 896        return rv;
 897}
 898
 899int netxen_linkevent_request(struct netxen_adapter *adapter, int enable)
 900{
 901        nx_nic_req_t req;
 902        u64 word;
 903        int rv;
 904
 905        memset(&req, 0, sizeof(nx_nic_req_t));
 906        req.qhdr = cpu_to_le64(NX_HOST_REQUEST << 23);
 907
 908        word = NX_NIC_H2C_OPCODE_GET_LINKEVENT | ((u64)adapter->portnum << 16);
 909        req.req_hdr = cpu_to_le64(word);
 910        req.words[0] = cpu_to_le64(enable | (enable << 8));
 911
 912        rv = netxen_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 913        if (rv != 0) {
 914                printk(KERN_ERR "%s: could not configure link notification\n",
 915                                adapter->netdev->name);
 916        }
 917
 918        return rv;
 919}
 920
 921int netxen_send_lro_cleanup(struct netxen_adapter *adapter)
 922{
 923        nx_nic_req_t req;
 924        u64 word;
 925        int rv;
 926
 927        if (!test_bit(__NX_FW_ATTACHED, &adapter->state))
 928                return 0;
 929
 930        memset(&req, 0, sizeof(nx_nic_req_t));
 931        req.qhdr = cpu_to_le64(NX_HOST_REQUEST << 23);
 932
 933        word = NX_NIC_H2C_OPCODE_LRO_REQUEST |
 934                ((u64)adapter->portnum << 16) |
 935                ((u64)NX_NIC_LRO_REQUEST_CLEANUP << 56) ;
 936
 937        req.req_hdr = cpu_to_le64(word);
 938
 939        rv = netxen_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 940        if (rv != 0) {
 941                printk(KERN_ERR "%s: could not cleanup lro flows\n",
 942                                adapter->netdev->name);
 943        }
 944        return rv;
 945}
 946
 947/*
 948 * netxen_nic_change_mtu - Change the Maximum Transfer Unit
 949 * @returns 0 on success, negative on failure
 950 */
 951
 952#define MTU_FUDGE_FACTOR        100
 953
 954int netxen_nic_change_mtu(struct net_device *netdev, int mtu)
 955{
 956        struct netxen_adapter *adapter = netdev_priv(netdev);
 957        int rc = 0;
 958
 959        if (adapter->set_mtu)
 960                rc = adapter->set_mtu(adapter, mtu);
 961
 962        if (!rc)
 963                netdev->mtu = mtu;
 964
 965        return rc;
 966}
 967
 968static int netxen_get_flash_block(struct netxen_adapter *adapter, int base,
 969                                  int size, __le32 * buf)
 970{
 971        int i, v, addr;
 972        __le32 *ptr32;
 973        int ret;
 974
 975        addr = base;
 976        ptr32 = buf;
 977        for (i = 0; i < size / sizeof(u32); i++) {
 978                ret = netxen_rom_fast_read(adapter, addr, &v);
 979                if (ret)
 980                        return ret;
 981
 982                *ptr32 = cpu_to_le32(v);
 983                ptr32++;
 984                addr += sizeof(u32);
 985        }
 986        if ((char *)buf + size > (char *)ptr32) {
 987                __le32 local;
 988                ret = netxen_rom_fast_read(adapter, addr, &v);
 989                if (ret)
 990                        return ret;
 991                local = cpu_to_le32(v);
 992                memcpy(ptr32, &local, (char *)buf + size - (char *)ptr32);
 993        }
 994
 995        return 0;
 996}
 997
 998int netxen_get_flash_mac_addr(struct netxen_adapter *adapter, u64 *mac)
 999{
1000        __le32 *pmac = (__le32 *) mac;
1001        u32 offset;
1002
1003        offset = NX_FW_MAC_ADDR_OFFSET + (adapter->portnum * sizeof(u64));
1004
1005        if (netxen_get_flash_block(adapter, offset, sizeof(u64), pmac) == -1)
1006                return -1;
1007
1008        if (*mac == ~0ULL) {
1009
1010                offset = NX_OLD_MAC_ADDR_OFFSET +
1011                        (adapter->portnum * sizeof(u64));
1012
1013                if (netxen_get_flash_block(adapter,
1014                                        offset, sizeof(u64), pmac) == -1)
1015                        return -1;
1016
1017                if (*mac == ~0ULL)
1018                        return -1;
1019        }
1020        return 0;
1021}
1022
1023int netxen_p3_get_mac_addr(struct netxen_adapter *adapter, u64 *mac)
1024{
1025        uint32_t crbaddr, mac_hi, mac_lo;
1026        int pci_func = adapter->ahw.pci_func;
1027
1028        crbaddr = CRB_MAC_BLOCK_START +
1029                (4 * ((pci_func/2) * 3)) + (4 * (pci_func & 1));
1030
1031        mac_lo = NXRD32(adapter, crbaddr);
1032        mac_hi = NXRD32(adapter, crbaddr+4);
1033
1034        if (pci_func & 1)
1035                *mac = le64_to_cpu((mac_lo >> 16) | ((u64)mac_hi << 16));
1036        else
1037                *mac = le64_to_cpu((u64)mac_lo | ((u64)mac_hi << 32));
1038
1039        return 0;
1040}
1041
1042/*
1043 * Changes the CRB window to the specified window.
1044 */
1045static void
1046netxen_nic_pci_set_crbwindow_128M(struct netxen_adapter *adapter,
1047                u32 window)
1048{
1049        void __iomem *offset;
1050        int count = 10;
1051        u8 func = adapter->ahw.pci_func;
1052
1053        if (adapter->ahw.crb_win == window)
1054                return;
1055
1056        offset = PCI_OFFSET_SECOND_RANGE(adapter,
1057                        NETXEN_PCIX_PH_REG(PCIE_CRB_WINDOW_REG(func)));
1058
1059        writel(window, offset);
1060        do {
1061                if (window == readl(offset))
1062                        break;
1063
1064                if (printk_ratelimit())
1065                        dev_warn(&adapter->pdev->dev,
1066                                        "failed to set CRB window to %d\n",
1067                                        (window == NETXEN_WINDOW_ONE));
1068                udelay(1);
1069
1070        } while (--count > 0);
1071
1072        if (count > 0)
1073                adapter->ahw.crb_win = window;
1074}
1075
1076/*
1077 * Returns < 0 if off is not valid,
1078 *       1 if window access is needed. 'off' is set to offset from
1079 *         CRB space in 128M pci map
1080 *       0 if no window access is needed. 'off' is set to 2M addr
1081 * In: 'off' is offset from base in 128M pci map
1082 */
1083static int
1084netxen_nic_pci_get_crb_addr_2M(struct netxen_adapter *adapter,
1085                ulong off, void __iomem **addr)
1086{
1087        crb_128M_2M_sub_block_map_t *m;
1088
1089
1090        if ((off >= NETXEN_CRB_MAX) || (off < NETXEN_PCI_CRBSPACE))
1091                return -EINVAL;
1092
1093        off -= NETXEN_PCI_CRBSPACE;
1094
1095        /*
1096         * Try direct map
1097         */
1098        m = &crb_128M_2M_map[CRB_BLK(off)].sub_block[CRB_SUBBLK(off)];
1099
1100        if (m->valid && (m->start_128M <= off) && (m->end_128M > off)) {
1101                *addr = adapter->ahw.pci_base0 + m->start_2M +
1102                        (off - m->start_128M);
1103                return 0;
1104        }
1105
1106        /*
1107         * Not in direct map, use crb window
1108         */
1109        *addr = adapter->ahw.pci_base0 + CRB_INDIRECT_2M +
1110                (off & MASK(16));
1111        return 1;
1112}
1113
1114/*
1115 * In: 'off' is offset from CRB space in 128M pci map
1116 * Out: 'off' is 2M pci map addr
1117 * side effect: lock crb window
1118 */
1119static void
1120netxen_nic_pci_set_crbwindow_2M(struct netxen_adapter *adapter, ulong off)
1121{
1122        u32 window;
1123        void __iomem *addr = adapter->ahw.pci_base0 + CRB_WINDOW_2M;
1124
1125        off -= NETXEN_PCI_CRBSPACE;
1126
1127        window = CRB_HI(off);
1128
1129        writel(window, addr);
1130        if (readl(addr) != window) {
1131                if (printk_ratelimit())
1132                        dev_warn(&adapter->pdev->dev,
1133                                "failed to set CRB window to %d off 0x%lx\n",
1134                                window, off);
1135        }
1136}
1137
1138static void __iomem *
1139netxen_nic_map_indirect_address_128M(struct netxen_adapter *adapter,
1140                ulong win_off, void __iomem **mem_ptr)
1141{
1142        ulong off = win_off;
1143        void __iomem *addr;
1144        resource_size_t mem_base;
1145
1146        if (ADDR_IN_WINDOW1(win_off))
1147                off = NETXEN_CRB_NORMAL(win_off);
1148
1149        addr = pci_base_offset(adapter, off);
1150        if (addr)
1151                return addr;
1152
1153        if (adapter->ahw.pci_len0 == 0)
1154                off -= NETXEN_PCI_CRBSPACE;
1155
1156        mem_base = pci_resource_start(adapter->pdev, 0);
1157        *mem_ptr = ioremap(mem_base + (off & PAGE_MASK), PAGE_SIZE);
1158        if (*mem_ptr)
1159                addr = *mem_ptr + (off & (PAGE_SIZE - 1));
1160
1161        return addr;
1162}
1163
1164static int
1165netxen_nic_hw_write_wx_128M(struct netxen_adapter *adapter, ulong off, u32 data)
1166{
1167        unsigned long flags;
1168        void __iomem *addr, *mem_ptr = NULL;
1169
1170        addr = netxen_nic_map_indirect_address_128M(adapter, off, &mem_ptr);
1171        if (!addr)
1172                return -EIO;
1173
1174        if (ADDR_IN_WINDOW1(off)) { /* Window 1 */
1175                netxen_nic_io_write_128M(adapter, addr, data);
1176        } else {        /* Window 0 */
1177                write_lock_irqsave(&adapter->ahw.crb_lock, flags);
1178                netxen_nic_pci_set_crbwindow_128M(adapter, 0);
1179                writel(data, addr);
1180                netxen_nic_pci_set_crbwindow_128M(adapter,
1181                                NETXEN_WINDOW_ONE);
1182                write_unlock_irqrestore(&adapter->ahw.crb_lock, flags);
1183        }
1184
1185        if (mem_ptr)
1186                iounmap(mem_ptr);
1187
1188        return 0;
1189}
1190
1191static u32
1192netxen_nic_hw_read_wx_128M(struct netxen_adapter *adapter, ulong off)
1193{
1194        unsigned long flags;
1195        void __iomem *addr, *mem_ptr = NULL;
1196        u32 data;
1197
1198        addr = netxen_nic_map_indirect_address_128M(adapter, off, &mem_ptr);
1199        if (!addr)
1200                return -EIO;
1201
1202        if (ADDR_IN_WINDOW1(off)) { /* Window 1 */
1203                data = netxen_nic_io_read_128M(adapter, addr);
1204        } else {        /* Window 0 */
1205                write_lock_irqsave(&adapter->ahw.crb_lock, flags);
1206                netxen_nic_pci_set_crbwindow_128M(adapter, 0);
1207                data = readl(addr);
1208                netxen_nic_pci_set_crbwindow_128M(adapter,
1209                                NETXEN_WINDOW_ONE);
1210                write_unlock_irqrestore(&adapter->ahw.crb_lock, flags);
1211        }
1212
1213        if (mem_ptr)
1214                iounmap(mem_ptr);
1215
1216        return data;
1217}
1218
1219static int
1220netxen_nic_hw_write_wx_2M(struct netxen_adapter *adapter, ulong off, u32 data)
1221{
1222        unsigned long flags;
1223        int rv;
1224        void __iomem *addr = NULL;
1225
1226        rv = netxen_nic_pci_get_crb_addr_2M(adapter, off, &addr);
1227
1228        if (rv == 0) {
1229                writel(data, addr);
1230                return 0;
1231        }
1232
1233        if (rv > 0) {
1234                /* indirect access */
1235                write_lock_irqsave(&adapter->ahw.crb_lock, flags);
1236                crb_win_lock(adapter);
1237                netxen_nic_pci_set_crbwindow_2M(adapter, off);
1238                writel(data, addr);
1239                crb_win_unlock(adapter);
1240                write_unlock_irqrestore(&adapter->ahw.crb_lock, flags);
1241                return 0;
1242        }
1243
1244        dev_err(&adapter->pdev->dev,
1245                        "%s: invalid offset: 0x%016lx\n", __func__, off);
1246        dump_stack();
1247        return -EIO;
1248}
1249
1250static u32
1251netxen_nic_hw_read_wx_2M(struct netxen_adapter *adapter, ulong off)
1252{
1253        unsigned long flags;
1254        int rv;
1255        u32 data;
1256        void __iomem *addr = NULL;
1257
1258        rv = netxen_nic_pci_get_crb_addr_2M(adapter, off, &addr);
1259
1260        if (rv == 0)
1261                return readl(addr);
1262
1263        if (rv > 0) {
1264                /* indirect access */
1265                write_lock_irqsave(&adapter->ahw.crb_lock, flags);
1266                crb_win_lock(adapter);
1267                netxen_nic_pci_set_crbwindow_2M(adapter, off);
1268                data = readl(addr);
1269                crb_win_unlock(adapter);
1270                write_unlock_irqrestore(&adapter->ahw.crb_lock, flags);
1271                return data;
1272        }
1273
1274        dev_err(&adapter->pdev->dev,
1275                        "%s: invalid offset: 0x%016lx\n", __func__, off);
1276        dump_stack();
1277        return -1;
1278}
1279
1280/* window 1 registers only */
1281static void netxen_nic_io_write_128M(struct netxen_adapter *adapter,
1282                void __iomem *addr, u32 data)
1283{
1284        read_lock(&adapter->ahw.crb_lock);
1285        writel(data, addr);
1286        read_unlock(&adapter->ahw.crb_lock);
1287}
1288
1289static u32 netxen_nic_io_read_128M(struct netxen_adapter *adapter,
1290                void __iomem *addr)
1291{
1292        u32 val;
1293
1294        read_lock(&adapter->ahw.crb_lock);
1295        val = readl(addr);
1296        read_unlock(&adapter->ahw.crb_lock);
1297
1298        return val;
1299}
1300
1301static void netxen_nic_io_write_2M(struct netxen_adapter *adapter,
1302                void __iomem *addr, u32 data)
1303{
1304        writel(data, addr);
1305}
1306
1307static u32 netxen_nic_io_read_2M(struct netxen_adapter *adapter,
1308                void __iomem *addr)
1309{
1310        return readl(addr);
1311}
1312
1313void __iomem *
1314netxen_get_ioaddr(struct netxen_adapter *adapter, u32 offset)
1315{
1316        void __iomem *addr = NULL;
1317
1318        if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1319                if ((offset < NETXEN_CRB_PCIX_HOST2) &&
1320                                (offset > NETXEN_CRB_PCIX_HOST))
1321                        addr = PCI_OFFSET_SECOND_RANGE(adapter, offset);
1322                else
1323                        addr = NETXEN_CRB_NORMALIZE(adapter, offset);
1324        } else {
1325                WARN_ON(netxen_nic_pci_get_crb_addr_2M(adapter,
1326                                        offset, &addr));
1327        }
1328
1329        return addr;
1330}
1331
1332static int
1333netxen_nic_pci_set_window_128M(struct netxen_adapter *adapter,
1334                u64 addr, u32 *start)
1335{
1336        if (ADDR_IN_RANGE(addr, NETXEN_ADDR_OCM0, NETXEN_ADDR_OCM0_MAX)) {
1337                *start = (addr - NETXEN_ADDR_OCM0  + NETXEN_PCI_OCM0);
1338                return 0;
1339        } else if (ADDR_IN_RANGE(addr,
1340                                NETXEN_ADDR_OCM1, NETXEN_ADDR_OCM1_MAX)) {
1341                *start = (addr - NETXEN_ADDR_OCM1 + NETXEN_PCI_OCM1);
1342                return 0;
1343        }
1344
1345        return -EIO;
1346}
1347
1348static int
1349netxen_nic_pci_set_window_2M(struct netxen_adapter *adapter,
1350                u64 addr, u32 *start)
1351{
1352        u32 window;
1353
1354        window = OCM_WIN(addr);
1355
1356        writel(window, adapter->ahw.ocm_win_crb);
1357        /* read back to flush */
1358        readl(adapter->ahw.ocm_win_crb);
1359
1360        adapter->ahw.ocm_win = window;
1361        *start = NETXEN_PCI_OCM0_2M + GET_MEM_OFFS_2M(addr);
1362        return 0;
1363}
1364
1365static int
1366netxen_nic_pci_mem_access_direct(struct netxen_adapter *adapter, u64 off,
1367                u64 *data, int op)
1368{
1369        void __iomem *addr, *mem_ptr = NULL;
1370        resource_size_t mem_base;
1371        int ret;
1372        u32 start;
1373
1374        spin_lock(&adapter->ahw.mem_lock);
1375
1376        ret = adapter->pci_set_window(adapter, off, &start);
1377        if (ret != 0)
1378                goto unlock;
1379
1380        if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1381                addr = adapter->ahw.pci_base0 + start;
1382        } else {
1383                addr = pci_base_offset(adapter, start);
1384                if (addr)
1385                        goto noremap;
1386
1387                mem_base = pci_resource_start(adapter->pdev, 0) +
1388                                        (start & PAGE_MASK);
1389                mem_ptr = ioremap(mem_base, PAGE_SIZE);
1390                if (mem_ptr == NULL) {
1391                        ret = -EIO;
1392                        goto unlock;
1393                }
1394
1395                addr = mem_ptr + (start & (PAGE_SIZE-1));
1396        }
1397noremap:
1398        if (op == 0)    /* read */
1399                *data = readq(addr);
1400        else            /* write */
1401                writeq(*data, addr);
1402
1403unlock:
1404        spin_unlock(&adapter->ahw.mem_lock);
1405
1406        if (mem_ptr)
1407                iounmap(mem_ptr);
1408        return ret;
1409}
1410
1411void
1412netxen_pci_camqm_read_2M(struct netxen_adapter *adapter, u64 off, u64 *data)
1413{
1414        void __iomem *addr = adapter->ahw.pci_base0 +
1415                NETXEN_PCI_CAMQM_2M_BASE + (off - NETXEN_PCI_CAMQM);
1416
1417        spin_lock(&adapter->ahw.mem_lock);
1418        *data = readq(addr);
1419        spin_unlock(&adapter->ahw.mem_lock);
1420}
1421
1422void
1423netxen_pci_camqm_write_2M(struct netxen_adapter *adapter, u64 off, u64 data)
1424{
1425        void __iomem *addr = adapter->ahw.pci_base0 +
1426                NETXEN_PCI_CAMQM_2M_BASE + (off - NETXEN_PCI_CAMQM);
1427
1428        spin_lock(&adapter->ahw.mem_lock);
1429        writeq(data, addr);
1430        spin_unlock(&adapter->ahw.mem_lock);
1431}
1432
1433#define MAX_CTL_CHECK   1000
1434
1435static int
1436netxen_nic_pci_mem_write_128M(struct netxen_adapter *adapter,
1437                u64 off, u64 data)
1438{
1439        int j, ret;
1440        u32 temp, off_lo, off_hi, addr_hi, data_hi, data_lo;
1441        void __iomem *mem_crb;
1442
1443        /* Only 64-bit aligned access */
1444        if (off & 7)
1445                return -EIO;
1446
1447        /* P2 has different SIU and MIU test agent base addr */
1448        if (ADDR_IN_RANGE(off, NETXEN_ADDR_QDR_NET,
1449                                NETXEN_ADDR_QDR_NET_MAX_P2)) {
1450                mem_crb = pci_base_offset(adapter,
1451                                NETXEN_CRB_QDR_NET+SIU_TEST_AGT_BASE);
1452                addr_hi = SIU_TEST_AGT_ADDR_HI;
1453                data_lo = SIU_TEST_AGT_WRDATA_LO;
1454                data_hi = SIU_TEST_AGT_WRDATA_HI;
1455                off_lo = off & SIU_TEST_AGT_ADDR_MASK;
1456                off_hi = SIU_TEST_AGT_UPPER_ADDR(off);
1457                goto correct;
1458        }
1459
1460        if (ADDR_IN_RANGE(off, NETXEN_ADDR_DDR_NET, NETXEN_ADDR_DDR_NET_MAX)) {
1461                mem_crb = pci_base_offset(adapter,
1462                                NETXEN_CRB_DDR_NET+MIU_TEST_AGT_BASE);
1463                addr_hi = MIU_TEST_AGT_ADDR_HI;
1464                data_lo = MIU_TEST_AGT_WRDATA_LO;
1465                data_hi = MIU_TEST_AGT_WRDATA_HI;
1466                off_lo = off & MIU_TEST_AGT_ADDR_MASK;
1467                off_hi = 0;
1468                goto correct;
1469        }
1470
1471        if (ADDR_IN_RANGE(off, NETXEN_ADDR_OCM0, NETXEN_ADDR_OCM0_MAX) ||
1472                ADDR_IN_RANGE(off, NETXEN_ADDR_OCM1, NETXEN_ADDR_OCM1_MAX)) {
1473                if (adapter->ahw.pci_len0 != 0) {
1474                        return netxen_nic_pci_mem_access_direct(adapter,
1475                                        off, &data, 1);
1476                }
1477        }
1478
1479        return -EIO;
1480
1481correct:
1482        spin_lock(&adapter->ahw.mem_lock);
1483        netxen_nic_pci_set_crbwindow_128M(adapter, 0);
1484
1485        writel(off_lo, (mem_crb + MIU_TEST_AGT_ADDR_LO));
1486        writel(off_hi, (mem_crb + addr_hi));
1487        writel(data & 0xffffffff, (mem_crb + data_lo));
1488        writel((data >> 32) & 0xffffffff, (mem_crb + data_hi));
1489        writel((TA_CTL_ENABLE | TA_CTL_WRITE), (mem_crb + TEST_AGT_CTRL));
1490        writel((TA_CTL_START | TA_CTL_ENABLE | TA_CTL_WRITE),
1491                        (mem_crb + TEST_AGT_CTRL));
1492
1493        for (j = 0; j < MAX_CTL_CHECK; j++) {
1494                temp = readl((mem_crb + TEST_AGT_CTRL));
1495                if ((temp & TA_CTL_BUSY) == 0)
1496                        break;
1497        }
1498
1499        if (j >= MAX_CTL_CHECK) {
1500                if (printk_ratelimit())
1501                        dev_err(&adapter->pdev->dev,
1502                                        "failed to write through agent\n");
1503                ret = -EIO;
1504        } else
1505                ret = 0;
1506
1507        netxen_nic_pci_set_crbwindow_128M(adapter, NETXEN_WINDOW_ONE);
1508        spin_unlock(&adapter->ahw.mem_lock);
1509        return ret;
1510}
1511
1512static int
1513netxen_nic_pci_mem_read_128M(struct netxen_adapter *adapter,
1514                u64 off, u64 *data)
1515{
1516        int j, ret;
1517        u32 temp, off_lo, off_hi, addr_hi, data_hi, data_lo;
1518        u64 val;
1519        void __iomem *mem_crb;
1520
1521        /* Only 64-bit aligned access */
1522        if (off & 7)
1523                return -EIO;
1524
1525        /* P2 has different SIU and MIU test agent base addr */
1526        if (ADDR_IN_RANGE(off, NETXEN_ADDR_QDR_NET,
1527                                NETXEN_ADDR_QDR_NET_MAX_P2)) {
1528                mem_crb = pci_base_offset(adapter,
1529                                NETXEN_CRB_QDR_NET+SIU_TEST_AGT_BASE);
1530                addr_hi = SIU_TEST_AGT_ADDR_HI;
1531                data_lo = SIU_TEST_AGT_RDDATA_LO;
1532                data_hi = SIU_TEST_AGT_RDDATA_HI;
1533                off_lo = off & SIU_TEST_AGT_ADDR_MASK;
1534                off_hi = SIU_TEST_AGT_UPPER_ADDR(off);
1535                goto correct;
1536        }
1537
1538        if (ADDR_IN_RANGE(off, NETXEN_ADDR_DDR_NET, NETXEN_ADDR_DDR_NET_MAX)) {
1539                mem_crb = pci_base_offset(adapter,
1540                                NETXEN_CRB_DDR_NET+MIU_TEST_AGT_BASE);
1541                addr_hi = MIU_TEST_AGT_ADDR_HI;
1542                data_lo = MIU_TEST_AGT_RDDATA_LO;
1543                data_hi = MIU_TEST_AGT_RDDATA_HI;
1544                off_lo = off & MIU_TEST_AGT_ADDR_MASK;
1545                off_hi = 0;
1546                goto correct;
1547        }
1548
1549        if (ADDR_IN_RANGE(off, NETXEN_ADDR_OCM0, NETXEN_ADDR_OCM0_MAX) ||
1550                ADDR_IN_RANGE(off, NETXEN_ADDR_OCM1, NETXEN_ADDR_OCM1_MAX)) {
1551                if (adapter->ahw.pci_len0 != 0) {
1552                        return netxen_nic_pci_mem_access_direct(adapter,
1553                                        off, data, 0);
1554                }
1555        }
1556
1557        return -EIO;
1558
1559correct:
1560        spin_lock(&adapter->ahw.mem_lock);
1561        netxen_nic_pci_set_crbwindow_128M(adapter, 0);
1562
1563        writel(off_lo, (mem_crb + MIU_TEST_AGT_ADDR_LO));
1564        writel(off_hi, (mem_crb + addr_hi));
1565        writel(TA_CTL_ENABLE, (mem_crb + TEST_AGT_CTRL));
1566        writel((TA_CTL_START|TA_CTL_ENABLE), (mem_crb + TEST_AGT_CTRL));
1567
1568        for (j = 0; j < MAX_CTL_CHECK; j++) {
1569                temp = readl(mem_crb + TEST_AGT_CTRL);
1570                if ((temp & TA_CTL_BUSY) == 0)
1571                        break;
1572        }
1573
1574        if (j >= MAX_CTL_CHECK) {
1575                if (printk_ratelimit())
1576                        dev_err(&adapter->pdev->dev,
1577                                        "failed to read through agent\n");
1578                ret = -EIO;
1579        } else {
1580
1581                temp = readl(mem_crb + data_hi);
1582                val = ((u64)temp << 32);
1583                val |= readl(mem_crb + data_lo);
1584                *data = val;
1585                ret = 0;
1586        }
1587
1588        netxen_nic_pci_set_crbwindow_128M(adapter, NETXEN_WINDOW_ONE);
1589        spin_unlock(&adapter->ahw.mem_lock);
1590
1591        return ret;
1592}
1593
1594static int
1595netxen_nic_pci_mem_write_2M(struct netxen_adapter *adapter,
1596                u64 off, u64 data)
1597{
1598        int j, ret;
1599        u32 temp, off8;
1600        void __iomem *mem_crb;
1601
1602        /* Only 64-bit aligned access */
1603        if (off & 7)
1604                return -EIO;
1605
1606        /* P3 onward, test agent base for MIU and SIU is same */
1607        if (ADDR_IN_RANGE(off, NETXEN_ADDR_QDR_NET,
1608                                NETXEN_ADDR_QDR_NET_MAX_P3)) {
1609                mem_crb = netxen_get_ioaddr(adapter,
1610                                NETXEN_CRB_QDR_NET+MIU_TEST_AGT_BASE);
1611                goto correct;
1612        }
1613
1614        if (ADDR_IN_RANGE(off, NETXEN_ADDR_DDR_NET, NETXEN_ADDR_DDR_NET_MAX)) {
1615                mem_crb = netxen_get_ioaddr(adapter,
1616                                NETXEN_CRB_DDR_NET+MIU_TEST_AGT_BASE);
1617                goto correct;
1618        }
1619
1620        if (ADDR_IN_RANGE(off, NETXEN_ADDR_OCM0, NETXEN_ADDR_OCM0_MAX))
1621                return netxen_nic_pci_mem_access_direct(adapter, off, &data, 1);
1622
1623        return -EIO;
1624
1625correct:
1626        off8 = off & 0xfffffff8;
1627
1628        spin_lock(&adapter->ahw.mem_lock);
1629
1630        writel(off8, (mem_crb + MIU_TEST_AGT_ADDR_LO));
1631        writel(0, (mem_crb + MIU_TEST_AGT_ADDR_HI));
1632
1633        writel(data & 0xffffffff,
1634                        mem_crb + MIU_TEST_AGT_WRDATA_LO);
1635        writel((data >> 32) & 0xffffffff,
1636                        mem_crb + MIU_TEST_AGT_WRDATA_HI);
1637
1638        writel((TA_CTL_ENABLE | TA_CTL_WRITE), (mem_crb + TEST_AGT_CTRL));
1639        writel((TA_CTL_START | TA_CTL_ENABLE | TA_CTL_WRITE),
1640                        (mem_crb + TEST_AGT_CTRL));
1641
1642        for (j = 0; j < MAX_CTL_CHECK; j++) {
1643                temp = readl(mem_crb + TEST_AGT_CTRL);
1644                if ((temp & TA_CTL_BUSY) == 0)
1645                        break;
1646        }
1647
1648        if (j >= MAX_CTL_CHECK) {
1649                if (printk_ratelimit())
1650                        dev_err(&adapter->pdev->dev,
1651                                        "failed to write through agent\n");
1652                ret = -EIO;
1653        } else
1654                ret = 0;
1655
1656        spin_unlock(&adapter->ahw.mem_lock);
1657
1658        return ret;
1659}
1660
1661static int
1662netxen_nic_pci_mem_read_2M(struct netxen_adapter *adapter,
1663                u64 off, u64 *data)
1664{
1665        int j, ret;
1666        u32 temp, off8;
1667        u64 val;
1668        void __iomem *mem_crb;
1669
1670        /* Only 64-bit aligned access */
1671        if (off & 7)
1672                return -EIO;
1673
1674        /* P3 onward, test agent base for MIU and SIU is same */
1675        if (ADDR_IN_RANGE(off, NETXEN_ADDR_QDR_NET,
1676                                NETXEN_ADDR_QDR_NET_MAX_P3)) {
1677                mem_crb = netxen_get_ioaddr(adapter,
1678                                NETXEN_CRB_QDR_NET+MIU_TEST_AGT_BASE);
1679                goto correct;
1680        }
1681
1682        if (ADDR_IN_RANGE(off, NETXEN_ADDR_DDR_NET, NETXEN_ADDR_DDR_NET_MAX)) {
1683                mem_crb = netxen_get_ioaddr(adapter,
1684                                NETXEN_CRB_DDR_NET+MIU_TEST_AGT_BASE);
1685                goto correct;
1686        }
1687
1688        if (ADDR_IN_RANGE(off, NETXEN_ADDR_OCM0, NETXEN_ADDR_OCM0_MAX)) {
1689                return netxen_nic_pci_mem_access_direct(adapter,
1690                                off, data, 0);
1691        }
1692
1693        return -EIO;
1694
1695correct:
1696        off8 = off & 0xfffffff8;
1697
1698        spin_lock(&adapter->ahw.mem_lock);
1699
1700        writel(off8, (mem_crb + MIU_TEST_AGT_ADDR_LO));
1701        writel(0, (mem_crb + MIU_TEST_AGT_ADDR_HI));
1702        writel(TA_CTL_ENABLE, (mem_crb + TEST_AGT_CTRL));
1703        writel((TA_CTL_START | TA_CTL_ENABLE), (mem_crb + TEST_AGT_CTRL));
1704
1705        for (j = 0; j < MAX_CTL_CHECK; j++) {
1706                temp = readl(mem_crb + TEST_AGT_CTRL);
1707                if ((temp & TA_CTL_BUSY) == 0)
1708                        break;
1709        }
1710
1711        if (j >= MAX_CTL_CHECK) {
1712                if (printk_ratelimit())
1713                        dev_err(&adapter->pdev->dev,
1714                                        "failed to read through agent\n");
1715                ret = -EIO;
1716        } else {
1717                val = (u64)(readl(mem_crb + MIU_TEST_AGT_RDDATA_HI)) << 32;
1718                val |= readl(mem_crb + MIU_TEST_AGT_RDDATA_LO);
1719                *data = val;
1720                ret = 0;
1721        }
1722
1723        spin_unlock(&adapter->ahw.mem_lock);
1724
1725        return ret;
1726}
1727
1728void
1729netxen_setup_hwops(struct netxen_adapter *adapter)
1730{
1731        adapter->init_port = netxen_niu_xg_init_port;
1732        adapter->stop_port = netxen_niu_disable_xg_port;
1733
1734        if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1735                adapter->crb_read = netxen_nic_hw_read_wx_128M,
1736                adapter->crb_write = netxen_nic_hw_write_wx_128M,
1737                adapter->pci_set_window = netxen_nic_pci_set_window_128M,
1738                adapter->pci_mem_read = netxen_nic_pci_mem_read_128M,
1739                adapter->pci_mem_write = netxen_nic_pci_mem_write_128M,
1740                adapter->io_read = netxen_nic_io_read_128M,
1741                adapter->io_write = netxen_nic_io_write_128M,
1742
1743                adapter->macaddr_set = netxen_p2_nic_set_mac_addr;
1744                adapter->set_multi = netxen_p2_nic_set_multi;
1745                adapter->set_mtu = netxen_nic_set_mtu_xgb;
1746                adapter->set_promisc = netxen_p2_nic_set_promisc;
1747
1748        } else {
1749                adapter->crb_read = netxen_nic_hw_read_wx_2M,
1750                adapter->crb_write = netxen_nic_hw_write_wx_2M,
1751                adapter->pci_set_window = netxen_nic_pci_set_window_2M,
1752                adapter->pci_mem_read = netxen_nic_pci_mem_read_2M,
1753                adapter->pci_mem_write = netxen_nic_pci_mem_write_2M,
1754                adapter->io_read = netxen_nic_io_read_2M,
1755                adapter->io_write = netxen_nic_io_write_2M,
1756
1757                adapter->set_mtu = nx_fw_cmd_set_mtu;
1758                adapter->set_promisc = netxen_p3_nic_set_promisc;
1759                adapter->macaddr_set = netxen_p3_nic_set_mac_addr;
1760                adapter->set_multi = netxen_p3_nic_set_multi;
1761
1762                adapter->phy_read = nx_fw_cmd_query_phy;
1763                adapter->phy_write = nx_fw_cmd_set_phy;
1764        }
1765}
1766
1767int netxen_nic_get_board_info(struct netxen_adapter *adapter)
1768{
1769        int offset, board_type, magic;
1770        struct pci_dev *pdev = adapter->pdev;
1771
1772        offset = NX_FW_MAGIC_OFFSET;
1773        if (netxen_rom_fast_read(adapter, offset, &magic))
1774                return -EIO;
1775
1776        if (magic != NETXEN_BDINFO_MAGIC) {
1777                dev_err(&pdev->dev, "invalid board config, magic=%08x\n",
1778                        magic);
1779                return -EIO;
1780        }
1781
1782        offset = NX_BRDTYPE_OFFSET;
1783        if (netxen_rom_fast_read(adapter, offset, &board_type))
1784                return -EIO;
1785
1786        if (board_type == NETXEN_BRDTYPE_P3_4_GB_MM) {
1787                u32 gpio = NXRD32(adapter, NETXEN_ROMUSB_GLB_PAD_GPIO_I);
1788                if ((gpio & 0x8000) == 0)
1789                        board_type = NETXEN_BRDTYPE_P3_10G_TP;
1790        }
1791
1792        adapter->ahw.board_type = board_type;
1793
1794        switch (board_type) {
1795        case NETXEN_BRDTYPE_P2_SB35_4G:
1796                adapter->ahw.port_type = NETXEN_NIC_GBE;
1797                break;
1798        case NETXEN_BRDTYPE_P2_SB31_10G:
1799        case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
1800        case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
1801        case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
1802        case NETXEN_BRDTYPE_P3_HMEZ:
1803        case NETXEN_BRDTYPE_P3_XG_LOM:
1804        case NETXEN_BRDTYPE_P3_10G_CX4:
1805        case NETXEN_BRDTYPE_P3_10G_CX4_LP:
1806        case NETXEN_BRDTYPE_P3_IMEZ:
1807        case NETXEN_BRDTYPE_P3_10G_SFP_PLUS:
1808        case NETXEN_BRDTYPE_P3_10G_SFP_CT:
1809        case NETXEN_BRDTYPE_P3_10G_SFP_QT:
1810        case NETXEN_BRDTYPE_P3_10G_XFP:
1811        case NETXEN_BRDTYPE_P3_10000_BASE_T:
1812                adapter->ahw.port_type = NETXEN_NIC_XGBE;
1813                break;
1814        case NETXEN_BRDTYPE_P1_BD:
1815        case NETXEN_BRDTYPE_P1_SB:
1816        case NETXEN_BRDTYPE_P1_SMAX:
1817        case NETXEN_BRDTYPE_P1_SOCK:
1818        case NETXEN_BRDTYPE_P3_REF_QG:
1819        case NETXEN_BRDTYPE_P3_4_GB:
1820        case NETXEN_BRDTYPE_P3_4_GB_MM:
1821                adapter->ahw.port_type = NETXEN_NIC_GBE;
1822                break;
1823        case NETXEN_BRDTYPE_P3_10G_TP:
1824                adapter->ahw.port_type = (adapter->portnum < 2) ?
1825                        NETXEN_NIC_XGBE : NETXEN_NIC_GBE;
1826                break;
1827        default:
1828                dev_err(&pdev->dev, "unknown board type %x\n", board_type);
1829                adapter->ahw.port_type = NETXEN_NIC_XGBE;
1830                break;
1831        }
1832
1833        return 0;
1834}
1835
1836/* NIU access sections */
1837static int netxen_nic_set_mtu_xgb(struct netxen_adapter *adapter, int new_mtu)
1838{
1839        new_mtu += MTU_FUDGE_FACTOR;
1840        if (adapter->physical_port == 0)
1841                NXWR32(adapter, NETXEN_NIU_XGE_MAX_FRAME_SIZE, new_mtu);
1842        else
1843                NXWR32(adapter, NETXEN_NIU_XG1_MAX_FRAME_SIZE, new_mtu);
1844        return 0;
1845}
1846
1847void netxen_nic_set_link_parameters(struct netxen_adapter *adapter)
1848{
1849        __u32 status;
1850        __u32 autoneg;
1851        __u32 port_mode;
1852
1853        if (!netif_carrier_ok(adapter->netdev)) {
1854                adapter->link_speed   = 0;
1855                adapter->link_duplex  = -1;
1856                adapter->link_autoneg = AUTONEG_ENABLE;
1857                return;
1858        }
1859
1860        if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
1861                port_mode = NXRD32(adapter, NETXEN_PORT_MODE_ADDR);
1862                if (port_mode == NETXEN_PORT_MODE_802_3_AP) {
1863                        adapter->link_speed   = SPEED_1000;
1864                        adapter->link_duplex  = DUPLEX_FULL;
1865                        adapter->link_autoneg = AUTONEG_DISABLE;
1866                        return;
1867                }
1868
1869                if (adapter->phy_read &&
1870                    adapter->phy_read(adapter,
1871                                      NETXEN_NIU_GB_MII_MGMT_ADDR_PHY_STATUS,
1872                                      &status) == 0) {
1873                        if (netxen_get_phy_link(status)) {
1874                                switch (netxen_get_phy_speed(status)) {
1875                                case 0:
1876                                        adapter->link_speed = SPEED_10;
1877                                        break;
1878                                case 1:
1879                                        adapter->link_speed = SPEED_100;
1880                                        break;
1881                                case 2:
1882                                        adapter->link_speed = SPEED_1000;
1883                                        break;
1884                                default:
1885                                        adapter->link_speed = 0;
1886                                        break;
1887                                }
1888                                switch (netxen_get_phy_duplex(status)) {
1889                                case 0:
1890                                        adapter->link_duplex = DUPLEX_HALF;
1891                                        break;
1892                                case 1:
1893                                        adapter->link_duplex = DUPLEX_FULL;
1894                                        break;
1895                                default:
1896                                        adapter->link_duplex = -1;
1897                                        break;
1898                                }
1899                                if (adapter->phy_read &&
1900                                    adapter->phy_read(adapter,
1901                                                      NETXEN_NIU_GB_MII_MGMT_ADDR_AUTONEG,
1902                                                      &autoneg) == 0)
1903                                        adapter->link_autoneg = autoneg;
1904                        } else
1905                                goto link_down;
1906                } else {
1907                      link_down:
1908                        adapter->link_speed = 0;
1909                        adapter->link_duplex = -1;
1910                }
1911        }
1912}
1913
1914int
1915netxen_nic_wol_supported(struct netxen_adapter *adapter)
1916{
1917        u32 wol_cfg;
1918
1919        if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
1920                return 0;
1921
1922        wol_cfg = NXRD32(adapter, NETXEN_WOL_CONFIG_NV);
1923        if (wol_cfg & (1UL << adapter->portnum)) {
1924                wol_cfg = NXRD32(adapter, NETXEN_WOL_CONFIG);
1925                if (wol_cfg & (1 << adapter->portnum))
1926                        return 1;
1927        }
1928
1929        return 0;
1930}
1931
1932static u32 netxen_md_cntrl(struct netxen_adapter *adapter,
1933                        struct netxen_minidump_template_hdr *template_hdr,
1934                        struct netxen_minidump_entry_crb *crtEntry)
1935{
1936        int loop_cnt, i, rv = 0, timeout_flag;
1937        u32 op_count, stride;
1938        u32 opcode, read_value, addr;
1939        unsigned long timeout, timeout_jiffies;
1940        addr = crtEntry->addr;
1941        op_count = crtEntry->op_count;
1942        stride = crtEntry->addr_stride;
1943
1944        for (loop_cnt = 0; loop_cnt < op_count; loop_cnt++) {
1945                for (i = 0; i < sizeof(crtEntry->opcode) * 8; i++) {
1946                        opcode = (crtEntry->opcode & (0x1 << i));
1947                        if (opcode) {
1948                                switch (opcode) {
1949                                case NX_DUMP_WCRB:
1950                                        NX_WR_DUMP_REG(addr,
1951                                                adapter->ahw.pci_base0,
1952                                                        crtEntry->value_1);
1953                                        break;
1954                                case NX_DUMP_RWCRB:
1955                                        NX_RD_DUMP_REG(addr,
1956                                                adapter->ahw.pci_base0,
1957                                                                &read_value);
1958                                        NX_WR_DUMP_REG(addr,
1959                                                adapter->ahw.pci_base0,
1960                                                                read_value);
1961                                        break;
1962                                case NX_DUMP_ANDCRB:
1963                                        NX_RD_DUMP_REG(addr,
1964                                                adapter->ahw.pci_base0,
1965                                                                &read_value);
1966                                        read_value &= crtEntry->value_2;
1967                                        NX_WR_DUMP_REG(addr,
1968                                                adapter->ahw.pci_base0,
1969                                                                read_value);
1970                                        break;
1971                                case NX_DUMP_ORCRB:
1972                                        NX_RD_DUMP_REG(addr,
1973                                                adapter->ahw.pci_base0,
1974                                                                &read_value);
1975                                        read_value |= crtEntry->value_3;
1976                                        NX_WR_DUMP_REG(addr,
1977                                                adapter->ahw.pci_base0,
1978                                                                read_value);
1979                                        break;
1980                                case NX_DUMP_POLLCRB:
1981                                        timeout = crtEntry->poll_timeout;
1982                                        NX_RD_DUMP_REG(addr,
1983                                                adapter->ahw.pci_base0,
1984                                                                &read_value);
1985                                        timeout_jiffies =
1986                                        msecs_to_jiffies(timeout) + jiffies;
1987                                        for (timeout_flag = 0;
1988                                                !timeout_flag
1989                                        && ((read_value & crtEntry->value_2)
1990                                        != crtEntry->value_1);) {
1991                                                if (time_after(jiffies,
1992                                                        timeout_jiffies))
1993                                                        timeout_flag = 1;
1994                                        NX_RD_DUMP_REG(addr,
1995                                                        adapter->ahw.pci_base0,
1996                                                                &read_value);
1997                                        }
1998
1999                                        if (timeout_flag) {
2000                                                dev_err(&adapter->pdev->dev, "%s : "
2001                                                        "Timeout in poll_crb control operation.\n"
2002                                                                , __func__);
2003                                                return -1;
2004                                        }
2005                                        break;
2006                                case NX_DUMP_RD_SAVE:
2007                                        /* Decide which address to use */
2008                                        if (crtEntry->state_index_a)
2009                                                addr =
2010                                                template_hdr->saved_state_array
2011                                                [crtEntry->state_index_a];
2012                                        NX_RD_DUMP_REG(addr,
2013                                                adapter->ahw.pci_base0,
2014                                                                &read_value);
2015                                        template_hdr->saved_state_array
2016                                        [crtEntry->state_index_v]
2017                                                = read_value;
2018                                        break;
2019                                case NX_DUMP_WRT_SAVED:
2020                                        /* Decide which value to use */
2021                                        if (crtEntry->state_index_v)
2022                                                read_value =
2023                                                template_hdr->saved_state_array
2024                                                [crtEntry->state_index_v];
2025                                        else
2026                                                read_value = crtEntry->value_1;
2027
2028                                        /* Decide which address to use */
2029                                        if (crtEntry->state_index_a)
2030                                                addr =
2031                                                template_hdr->saved_state_array
2032                                                [crtEntry->state_index_a];
2033
2034                                        NX_WR_DUMP_REG(addr,
2035                                                adapter->ahw.pci_base0,
2036                                                                read_value);
2037                                        break;
2038                                case NX_DUMP_MOD_SAVE_ST:
2039                                        read_value =
2040                                        template_hdr->saved_state_array
2041                                                [crtEntry->state_index_v];
2042                                        read_value <<= crtEntry->shl;
2043                                        read_value >>= crtEntry->shr;
2044                                        if (crtEntry->value_2)
2045                                                read_value &=
2046                                                crtEntry->value_2;
2047                                        read_value |= crtEntry->value_3;
2048                                        read_value += crtEntry->value_1;
2049                                        /* Write value back to state area.*/
2050                                        template_hdr->saved_state_array
2051                                                [crtEntry->state_index_v]
2052                                                        = read_value;
2053                                        break;
2054                                default:
2055                                        rv = 1;
2056                                        break;
2057                                }
2058                        }
2059                }
2060                addr = addr + stride;
2061        }
2062        return rv;
2063}
2064
2065/* Read memory or MN */
2066static u32
2067netxen_md_rdmem(struct netxen_adapter *adapter,
2068                struct netxen_minidump_entry_rdmem
2069                        *memEntry, u64 *data_buff)
2070{
2071        u64 addr, value = 0;
2072        int i = 0, loop_cnt;
2073
2074        addr = (u64)memEntry->read_addr;
2075        loop_cnt = memEntry->read_data_size;    /* This is size in bytes */
2076        loop_cnt /= sizeof(value);
2077
2078        for (i = 0; i < loop_cnt; i++) {
2079                if (netxen_nic_pci_mem_read_2M(adapter, addr, &value))
2080                        goto out;
2081                *data_buff++ = value;
2082                addr += sizeof(value);
2083        }
2084out:
2085        return i * sizeof(value);
2086}
2087
2088/* Read CRB operation */
2089static u32 netxen_md_rd_crb(struct netxen_adapter *adapter,
2090                        struct netxen_minidump_entry_crb
2091                                *crbEntry, u32 *data_buff)
2092{
2093        int loop_cnt;
2094        u32 op_count, addr, stride, value;
2095
2096        addr = crbEntry->addr;
2097        op_count = crbEntry->op_count;
2098        stride = crbEntry->addr_stride;
2099
2100        for (loop_cnt = 0; loop_cnt < op_count; loop_cnt++) {
2101                NX_RD_DUMP_REG(addr, adapter->ahw.pci_base0, &value);
2102                *data_buff++ = addr;
2103                *data_buff++ = value;
2104                addr = addr + stride;
2105        }
2106        return loop_cnt * (2 * sizeof(u32));
2107}
2108
2109/* Read ROM */
2110static u32
2111netxen_md_rdrom(struct netxen_adapter *adapter,
2112                        struct netxen_minidump_entry_rdrom
2113                                *romEntry, __le32 *data_buff)
2114{
2115        int i, count = 0;
2116        u32 size, lck_val;
2117        u32 val;
2118        u32 fl_addr, waddr, raddr;
2119        fl_addr = romEntry->read_addr;
2120        size = romEntry->read_data_size/4;
2121lock_try:
2122        lck_val = readl((void __iomem *)(adapter->ahw.pci_base0 +
2123                                                        NX_FLASH_SEM2_LK));
2124        if (!lck_val && count < MAX_CTL_CHECK) {
2125                msleep(20);
2126                count++;
2127                goto lock_try;
2128        }
2129        writel(adapter->ahw.pci_func, (void __iomem *)(adapter->ahw.pci_base0 +
2130                                                        NX_FLASH_LOCK_ID));
2131        for (i = 0; i < size; i++) {
2132                waddr = fl_addr & 0xFFFF0000;
2133                NX_WR_DUMP_REG(FLASH_ROM_WINDOW, adapter->ahw.pci_base0, waddr);
2134                raddr = FLASH_ROM_DATA + (fl_addr & 0x0000FFFF);
2135                NX_RD_DUMP_REG(raddr, adapter->ahw.pci_base0, &val);
2136                *data_buff++ = cpu_to_le32(val);
2137                fl_addr += sizeof(val);
2138        }
2139        readl((void __iomem *)(adapter->ahw.pci_base0 + NX_FLASH_SEM2_ULK));
2140        return romEntry->read_data_size;
2141}
2142
2143/* Handle L2 Cache */
2144static u32
2145netxen_md_L2Cache(struct netxen_adapter *adapter,
2146                                struct netxen_minidump_entry_cache
2147                                        *cacheEntry, u32 *data_buff)
2148{
2149        int loop_cnt, i, k, timeout_flag = 0;
2150        u32 addr, read_addr, read_value, cntrl_addr, tag_reg_addr;
2151        u32 tag_value, read_cnt;
2152        u8 cntl_value_w, cntl_value_r;
2153        unsigned long timeout, timeout_jiffies;
2154
2155        loop_cnt = cacheEntry->op_count;
2156        read_addr = cacheEntry->read_addr;
2157        cntrl_addr = cacheEntry->control_addr;
2158        cntl_value_w = (u32) cacheEntry->write_value;
2159        tag_reg_addr = cacheEntry->tag_reg_addr;
2160        tag_value = cacheEntry->init_tag_value;
2161        read_cnt = cacheEntry->read_addr_cnt;
2162
2163        for (i = 0; i < loop_cnt; i++) {
2164                NX_WR_DUMP_REG(tag_reg_addr, adapter->ahw.pci_base0, tag_value);
2165                if (cntl_value_w)
2166                        NX_WR_DUMP_REG(cntrl_addr, adapter->ahw.pci_base0,
2167                                        (u32)cntl_value_w);
2168                if (cacheEntry->poll_mask) {
2169                        timeout = cacheEntry->poll_wait;
2170                        NX_RD_DUMP_REG(cntrl_addr, adapter->ahw.pci_base0,
2171                                                        &cntl_value_r);
2172                        timeout_jiffies = msecs_to_jiffies(timeout) + jiffies;
2173                        for (timeout_flag = 0; !timeout_flag &&
2174                        ((cntl_value_r & cacheEntry->poll_mask) != 0);) {
2175                                if (time_after(jiffies, timeout_jiffies))
2176                                        timeout_flag = 1;
2177                                NX_RD_DUMP_REG(cntrl_addr,
2178                                        adapter->ahw.pci_base0,
2179                                                        &cntl_value_r);
2180                        }
2181                        if (timeout_flag) {
2182                                dev_err(&adapter->pdev->dev,
2183                                                "Timeout in processing L2 Tag poll.\n");
2184                                return -1;
2185                        }
2186                }
2187                addr = read_addr;
2188                for (k = 0; k < read_cnt; k++) {
2189                        NX_RD_DUMP_REG(addr, adapter->ahw.pci_base0,
2190                                        &read_value);
2191                        *data_buff++ = read_value;
2192                        addr += cacheEntry->read_addr_stride;
2193                }
2194                tag_value += cacheEntry->tag_value_stride;
2195        }
2196        return read_cnt * loop_cnt * sizeof(read_value);
2197}
2198
2199
2200/* Handle L1 Cache */
2201static u32 netxen_md_L1Cache(struct netxen_adapter *adapter,
2202                                struct netxen_minidump_entry_cache
2203                                        *cacheEntry, u32 *data_buff)
2204{
2205        int i, k, loop_cnt;
2206        u32 addr, read_addr, read_value, cntrl_addr, tag_reg_addr;
2207        u32 tag_value, read_cnt;
2208        u8 cntl_value_w;
2209
2210        loop_cnt = cacheEntry->op_count;
2211        read_addr = cacheEntry->read_addr;
2212        cntrl_addr = cacheEntry->control_addr;
2213        cntl_value_w = (u32) cacheEntry->write_value;
2214        tag_reg_addr = cacheEntry->tag_reg_addr;
2215        tag_value = cacheEntry->init_tag_value;
2216        read_cnt = cacheEntry->read_addr_cnt;
2217
2218        for (i = 0; i < loop_cnt; i++) {
2219                NX_WR_DUMP_REG(tag_reg_addr, adapter->ahw.pci_base0, tag_value);
2220                NX_WR_DUMP_REG(cntrl_addr, adapter->ahw.pci_base0,
2221                                                (u32) cntl_value_w);
2222                addr = read_addr;
2223                for (k = 0; k < read_cnt; k++) {
2224                        NX_RD_DUMP_REG(addr,
2225                                adapter->ahw.pci_base0,
2226                                                &read_value);
2227                        *data_buff++ = read_value;
2228                        addr += cacheEntry->read_addr_stride;
2229                }
2230                tag_value += cacheEntry->tag_value_stride;
2231        }
2232        return read_cnt * loop_cnt * sizeof(read_value);
2233}
2234
2235/* Reading OCM memory */
2236static u32
2237netxen_md_rdocm(struct netxen_adapter *adapter,
2238                                struct netxen_minidump_entry_rdocm
2239                                        *ocmEntry, u32 *data_buff)
2240{
2241        int i, loop_cnt;
2242        u32 value;
2243        void __iomem *addr;
2244        addr = (ocmEntry->read_addr + adapter->ahw.pci_base0);
2245        loop_cnt = ocmEntry->op_count;
2246
2247        for (i = 0; i < loop_cnt; i++) {
2248                value = readl(addr);
2249                *data_buff++ = value;
2250                addr += ocmEntry->read_addr_stride;
2251        }
2252        return i * sizeof(u32);
2253}
2254
2255/* Read MUX data */
2256static u32
2257netxen_md_rdmux(struct netxen_adapter *adapter, struct netxen_minidump_entry_mux
2258                                        *muxEntry, u32 *data_buff)
2259{
2260        int loop_cnt = 0;
2261        u32 read_addr, read_value, select_addr, sel_value;
2262
2263        read_addr = muxEntry->read_addr;
2264        sel_value = muxEntry->select_value;
2265        select_addr = muxEntry->select_addr;
2266
2267        for (loop_cnt = 0; loop_cnt < muxEntry->op_count; loop_cnt++) {
2268                NX_WR_DUMP_REG(select_addr, adapter->ahw.pci_base0, sel_value);
2269                NX_RD_DUMP_REG(read_addr, adapter->ahw.pci_base0, &read_value);
2270                *data_buff++ = sel_value;
2271                *data_buff++ = read_value;
2272                sel_value += muxEntry->select_value_stride;
2273        }
2274        return loop_cnt * (2 * sizeof(u32));
2275}
2276
2277/* Handling Queue State Reads */
2278static u32
2279netxen_md_rdqueue(struct netxen_adapter *adapter,
2280                                struct netxen_minidump_entry_queue
2281                                        *queueEntry, u32 *data_buff)
2282{
2283        int loop_cnt, k;
2284        u32 queue_id, read_addr, read_value, read_stride, select_addr, read_cnt;
2285
2286        read_cnt = queueEntry->read_addr_cnt;
2287        read_stride = queueEntry->read_addr_stride;
2288        select_addr = queueEntry->select_addr;
2289
2290        for (loop_cnt = 0, queue_id = 0; loop_cnt < queueEntry->op_count;
2291                                 loop_cnt++) {
2292                NX_WR_DUMP_REG(select_addr, adapter->ahw.pci_base0, queue_id);
2293                read_addr = queueEntry->read_addr;
2294                for (k = 0; k < read_cnt; k++) {
2295                        NX_RD_DUMP_REG(read_addr, adapter->ahw.pci_base0,
2296                                                        &read_value);
2297                        *data_buff++ = read_value;
2298                        read_addr += read_stride;
2299                }
2300                queue_id += queueEntry->queue_id_stride;
2301        }
2302        return loop_cnt * (read_cnt * sizeof(read_value));
2303}
2304
2305
2306/*
2307* We catch an error where driver does not read
2308* as much data as we expect from the entry.
2309*/
2310
2311static int netxen_md_entry_err_chk(struct netxen_adapter *adapter,
2312                                struct netxen_minidump_entry *entry, int esize)
2313{
2314        if (esize < 0) {
2315                entry->hdr.driver_flags |= NX_DUMP_SKIP;
2316                return esize;
2317        }
2318        if (esize != entry->hdr.entry_capture_size) {
2319                entry->hdr.entry_capture_size = esize;
2320                entry->hdr.driver_flags |= NX_DUMP_SIZE_ERR;
2321                dev_info(&adapter->pdev->dev,
2322                        "Invalidate dump, Type:%d\tMask:%d\tSize:%dCap_size:%d\n",
2323                        entry->hdr.entry_type, entry->hdr.entry_capture_mask,
2324                        esize, entry->hdr.entry_capture_size);
2325                dev_info(&adapter->pdev->dev, "Aborting further dump capture\n");
2326        }
2327        return 0;
2328}
2329
2330static int netxen_parse_md_template(struct netxen_adapter *adapter)
2331{
2332        int num_of_entries, buff_level, e_cnt, esize;
2333        int rv = 0, sane_start = 0, sane_end = 0;
2334        char *dbuff;
2335        void *template_buff = adapter->mdump.md_template;
2336        char *dump_buff = adapter->mdump.md_capture_buff;
2337        int capture_mask = adapter->mdump.md_capture_mask;
2338        struct netxen_minidump_template_hdr *template_hdr;
2339        struct netxen_minidump_entry *entry;
2340
2341        if ((capture_mask & 0x3) != 0x3) {
2342                dev_err(&adapter->pdev->dev, "Capture mask %02x below minimum needed "
2343                        "for valid firmware dump\n", capture_mask);
2344                return -EINVAL;
2345        }
2346        template_hdr = (struct netxen_minidump_template_hdr *) template_buff;
2347        num_of_entries = template_hdr->num_of_entries;
2348        entry = (struct netxen_minidump_entry *) ((char *) template_buff +
2349                                template_hdr->first_entry_offset);
2350        memcpy(dump_buff, template_buff, adapter->mdump.md_template_size);
2351        dump_buff = dump_buff + adapter->mdump.md_template_size;
2352
2353        if (template_hdr->entry_type == TLHDR)
2354                sane_start = 1;
2355
2356        for (e_cnt = 0, buff_level = 0; e_cnt < num_of_entries; e_cnt++) {
2357                if (!(entry->hdr.entry_capture_mask & capture_mask)) {
2358                        entry->hdr.driver_flags |= NX_DUMP_SKIP;
2359                        entry = (struct netxen_minidump_entry *)
2360                                ((char *) entry + entry->hdr.entry_size);
2361                        continue;
2362                }
2363                switch (entry->hdr.entry_type) {
2364                case RDNOP:
2365                        entry->hdr.driver_flags |= NX_DUMP_SKIP;
2366                        break;
2367                case RDEND:
2368                        entry->hdr.driver_flags |= NX_DUMP_SKIP;
2369                        sane_end += 1;
2370                        break;
2371                case CNTRL:
2372                        rv = netxen_md_cntrl(adapter,
2373                                template_hdr, (void *)entry);
2374                        if (rv)
2375                                entry->hdr.driver_flags |= NX_DUMP_SKIP;
2376                        break;
2377                case RDCRB:
2378                        dbuff = dump_buff + buff_level;
2379                        esize = netxen_md_rd_crb(adapter,
2380                                        (void *) entry, (void *) dbuff);
2381                        rv = netxen_md_entry_err_chk
2382                                (adapter, entry, esize);
2383                        if (rv < 0)
2384                                break;
2385                        buff_level += esize;
2386                        break;
2387                case RDMN:
2388                case RDMEM:
2389                        dbuff = dump_buff + buff_level;
2390                        esize = netxen_md_rdmem(adapter,
2391                                (void *) entry, (void *) dbuff);
2392                        rv = netxen_md_entry_err_chk
2393                                (adapter, entry, esize);
2394                        if (rv < 0)
2395                                break;
2396                        buff_level += esize;
2397                        break;
2398                case BOARD:
2399                case RDROM:
2400                        dbuff = dump_buff + buff_level;
2401                        esize = netxen_md_rdrom(adapter,
2402                                (void *) entry, (void *) dbuff);
2403                        rv = netxen_md_entry_err_chk
2404                                (adapter, entry, esize);
2405                        if (rv < 0)
2406                                break;
2407                        buff_level += esize;
2408                        break;
2409                case L2ITG:
2410                case L2DTG:
2411                case L2DAT:
2412                case L2INS:
2413                        dbuff = dump_buff + buff_level;
2414                        esize = netxen_md_L2Cache(adapter,
2415                                (void *) entry, (void *) dbuff);
2416                        rv = netxen_md_entry_err_chk
2417                                (adapter, entry, esize);
2418                        if (rv < 0)
2419                                break;
2420                        buff_level += esize;
2421                        break;
2422                case L1DAT:
2423                case L1INS:
2424                        dbuff = dump_buff + buff_level;
2425                        esize = netxen_md_L1Cache(adapter,
2426                                (void *) entry, (void *) dbuff);
2427                        rv = netxen_md_entry_err_chk
2428                                (adapter, entry, esize);
2429                        if (rv < 0)
2430                                break;
2431                        buff_level += esize;
2432                        break;
2433                case RDOCM:
2434                        dbuff = dump_buff + buff_level;
2435                        esize = netxen_md_rdocm(adapter,
2436                                (void *) entry, (void *) dbuff);
2437                        rv = netxen_md_entry_err_chk
2438                                (adapter, entry, esize);
2439                        if (rv < 0)
2440                                break;
2441                        buff_level += esize;
2442                        break;
2443                case RDMUX:
2444                        dbuff = dump_buff + buff_level;
2445                        esize = netxen_md_rdmux(adapter,
2446                                (void *) entry, (void *) dbuff);
2447                        rv = netxen_md_entry_err_chk
2448                                (adapter, entry, esize);
2449                        if (rv < 0)
2450                                break;
2451                        buff_level += esize;
2452                        break;
2453                case QUEUE:
2454                        dbuff = dump_buff + buff_level;
2455                        esize = netxen_md_rdqueue(adapter,
2456                                (void *) entry, (void *) dbuff);
2457                        rv = netxen_md_entry_err_chk
2458                                (adapter, entry, esize);
2459                        if (rv  < 0)
2460                                break;
2461                        buff_level += esize;
2462                        break;
2463                default:
2464                        entry->hdr.driver_flags |= NX_DUMP_SKIP;
2465                        break;
2466                }
2467                /* Next entry in the template */
2468                entry = (struct netxen_minidump_entry *)
2469                        ((char *) entry + entry->hdr.entry_size);
2470        }
2471        if (!sane_start || sane_end > 1) {
2472                dev_err(&adapter->pdev->dev,
2473                                "Firmware minidump template configuration error.\n");
2474        }
2475        return 0;
2476}
2477
2478static int
2479netxen_collect_minidump(struct netxen_adapter *adapter)
2480{
2481        int ret = 0;
2482        struct netxen_minidump_template_hdr *hdr;
2483        hdr = (struct netxen_minidump_template_hdr *)
2484                                adapter->mdump.md_template;
2485        hdr->driver_capture_mask = adapter->mdump.md_capture_mask;
2486        hdr->driver_timestamp = ktime_get_seconds();
2487        hdr->driver_info_word2 = adapter->fw_version;
2488        hdr->driver_info_word3 = NXRD32(adapter, CRB_DRIVER_VERSION);
2489        ret = netxen_parse_md_template(adapter);
2490        if (ret)
2491                return ret;
2492
2493        return ret;
2494}
2495
2496
2497void
2498netxen_dump_fw(struct netxen_adapter *adapter)
2499{
2500        struct netxen_minidump_template_hdr *hdr;
2501        int i, k, data_size = 0;
2502        u32 capture_mask;
2503        hdr = (struct netxen_minidump_template_hdr *)
2504                                adapter->mdump.md_template;
2505        capture_mask = adapter->mdump.md_capture_mask;
2506
2507        for (i = 0x2, k = 1; (i & NX_DUMP_MASK_MAX); i <<= 1, k++) {
2508                if (i & capture_mask)
2509                        data_size += hdr->capture_size_array[k];
2510        }
2511        if (!data_size) {
2512                dev_err(&adapter->pdev->dev,
2513                                "Invalid cap sizes for capture_mask=0x%x\n",
2514                        adapter->mdump.md_capture_mask);
2515                return;
2516        }
2517        adapter->mdump.md_capture_size = data_size;
2518        adapter->mdump.md_dump_size = adapter->mdump.md_template_size +
2519                                        adapter->mdump.md_capture_size;
2520        if (!adapter->mdump.md_capture_buff) {
2521                adapter->mdump.md_capture_buff =
2522                                vzalloc(adapter->mdump.md_dump_size);
2523                if (!adapter->mdump.md_capture_buff)
2524                        return;
2525
2526                if (netxen_collect_minidump(adapter)) {
2527                        adapter->mdump.has_valid_dump = 0;
2528                        adapter->mdump.md_dump_size = 0;
2529                        vfree(adapter->mdump.md_capture_buff);
2530                        adapter->mdump.md_capture_buff = NULL;
2531                        dev_err(&adapter->pdev->dev,
2532                                "Error in collecting firmware minidump.\n");
2533                } else {
2534                        adapter->mdump.md_timestamp = jiffies;
2535                        adapter->mdump.has_valid_dump = 1;
2536                        adapter->fw_mdump_rdy = 1;
2537                        dev_info(&adapter->pdev->dev, "%s Successfully "
2538                                "collected fw dump.\n", adapter->netdev->name);
2539                }
2540
2541        } else {
2542                dev_info(&adapter->pdev->dev,
2543                                        "Cannot overwrite previously collected "
2544                                                        "firmware minidump.\n");
2545                adapter->fw_mdump_rdy = 1;
2546                return;
2547        }
2548}
2549