linux/drivers/net/ethernet/qlogic/netxen/netxen_nic_hw.c
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   1/*
   2 * Copyright (C) 2003 - 2009 NetXen, Inc.
   3 * Copyright (C) 2009 - QLogic Corporation.
   4 * All rights reserved.
   5 *
   6 * This program is free software; you can redistribute it and/or
   7 * modify it under the terms of the GNU General Public License
   8 * as published by the Free Software Foundation; either version 2
   9 * of the License, or (at your option) any later version.
  10 *
  11 * This program is distributed in the hope that it will be useful, but
  12 * WITHOUT ANY WARRANTY; without even the implied warranty of
  13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 * GNU General Public License for more details.
  15 *
  16 * You should have received a copy of the GNU General Public License
  17 * along with this program; if not, see <http://www.gnu.org/licenses/>.
  18 *
  19 * The full GNU General Public License is included in this distribution
  20 * in the file called "COPYING".
  21 *
  22 */
  23
  24#include <linux/io-64-nonatomic-lo-hi.h>
  25#include <linux/slab.h>
  26#include "netxen_nic.h"
  27#include "netxen_nic_hw.h"
  28
  29#include <net/ip.h>
  30
  31#define MASK(n) ((1ULL<<(n))-1)
  32#define MN_WIN(addr) (((addr & 0x1fc0000) >> 1) | ((addr >> 25) & 0x3ff))
  33#define OCM_WIN(addr) (((addr & 0x1ff0000) >> 1) | ((addr >> 25) & 0x3ff))
  34#define MS_WIN(addr) (addr & 0x0ffc0000)
  35
  36#define GET_MEM_OFFS_2M(addr) (addr & MASK(18))
  37
  38#define CRB_BLK(off)    ((off >> 20) & 0x3f)
  39#define CRB_SUBBLK(off) ((off >> 16) & 0xf)
  40#define CRB_WINDOW_2M   (0x130060)
  41#define CRB_HI(off)     ((crb_hub_agt[CRB_BLK(off)] << 20) | ((off) & 0xf0000))
  42#define CRB_INDIRECT_2M (0x1e0000UL)
  43
  44static void netxen_nic_io_write_128M(struct netxen_adapter *adapter,
  45                void __iomem *addr, u32 data);
  46static u32 netxen_nic_io_read_128M(struct netxen_adapter *adapter,
  47                void __iomem *addr);
  48
  49#define PCI_OFFSET_FIRST_RANGE(adapter, off)    \
  50        ((adapter)->ahw.pci_base0 + (off))
  51#define PCI_OFFSET_SECOND_RANGE(adapter, off)   \
  52        ((adapter)->ahw.pci_base1 + (off) - SECOND_PAGE_GROUP_START)
  53#define PCI_OFFSET_THIRD_RANGE(adapter, off)    \
  54        ((adapter)->ahw.pci_base2 + (off) - THIRD_PAGE_GROUP_START)
  55
  56static void __iomem *pci_base_offset(struct netxen_adapter *adapter,
  57                                            unsigned long off)
  58{
  59        if (ADDR_IN_RANGE(off, FIRST_PAGE_GROUP_START, FIRST_PAGE_GROUP_END))
  60                return PCI_OFFSET_FIRST_RANGE(adapter, off);
  61
  62        if (ADDR_IN_RANGE(off, SECOND_PAGE_GROUP_START, SECOND_PAGE_GROUP_END))
  63                return PCI_OFFSET_SECOND_RANGE(adapter, off);
  64
  65        if (ADDR_IN_RANGE(off, THIRD_PAGE_GROUP_START, THIRD_PAGE_GROUP_END))
  66                return PCI_OFFSET_THIRD_RANGE(adapter, off);
  67
  68        return NULL;
  69}
  70
  71static crb_128M_2M_block_map_t
  72crb_128M_2M_map[64] __cacheline_aligned_in_smp = {
  73    {{{0, 0,         0,         0} } },         /* 0: PCI */
  74    {{{1, 0x0100000, 0x0102000, 0x120000},      /* 1: PCIE */
  75          {1, 0x0110000, 0x0120000, 0x130000},
  76          {1, 0x0120000, 0x0122000, 0x124000},
  77          {1, 0x0130000, 0x0132000, 0x126000},
  78          {1, 0x0140000, 0x0142000, 0x128000},
  79          {1, 0x0150000, 0x0152000, 0x12a000},
  80          {1, 0x0160000, 0x0170000, 0x110000},
  81          {1, 0x0170000, 0x0172000, 0x12e000},
  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          {1, 0x01e0000, 0x01e0800, 0x122000},
  89          {0, 0x0000000, 0x0000000, 0x000000} } },
  90        {{{1, 0x0200000, 0x0210000, 0x180000} } },/* 2: MN */
  91    {{{0, 0,         0,         0} } },     /* 3: */
  92    {{{1, 0x0400000, 0x0401000, 0x169000} } },/* 4: P2NR1 */
  93    {{{1, 0x0500000, 0x0510000, 0x140000} } },/* 5: SRE   */
  94    {{{1, 0x0600000, 0x0610000, 0x1c0000} } },/* 6: NIU   */
  95    {{{1, 0x0700000, 0x0704000, 0x1b8000} } },/* 7: QM    */
  96    {{{1, 0x0800000, 0x0802000, 0x170000},  /* 8: SQM0  */
  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, 0x08f0000, 0x08f2000, 0x172000} } },
 112    {{{1, 0x0900000, 0x0902000, 0x174000},      /* 9: SQM1*/
 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, 0x09f0000, 0x09f2000, 0x176000} } },
 128    {{{0, 0x0a00000, 0x0a02000, 0x178000},      /* 10: SQM2*/
 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, 0x0af0000, 0x0af2000, 0x17a000} } },
 144    {{{0, 0x0b00000, 0x0b02000, 0x17c000},      /* 11: SQM3*/
 145      {0, 0x0000000, 0x0000000, 0x000000},
 146      {0, 0x0000000, 0x0000000, 0x000000},
 147      {0, 0x0000000, 0x0000000, 0x000000},
 148      {0, 0x0000000, 0x0000000, 0x000000},
 149      {0, 0x0000000, 0x0000000, 0x000000},
 150      {0, 0x0000000, 0x0000000, 0x000000},
 151      {0, 0x0000000, 0x0000000, 0x000000},
 152      {0, 0x0000000, 0x0000000, 0x000000},
 153      {0, 0x0000000, 0x0000000, 0x000000},
 154      {0, 0x0000000, 0x0000000, 0x000000},
 155      {0, 0x0000000, 0x0000000, 0x000000},
 156      {0, 0x0000000, 0x0000000, 0x000000},
 157      {0, 0x0000000, 0x0000000, 0x000000},
 158      {0, 0x0000000, 0x0000000, 0x000000},
 159      {1, 0x0bf0000, 0x0bf2000, 0x17e000} } },
 160        {{{1, 0x0c00000, 0x0c04000, 0x1d4000} } },/* 12: I2Q */
 161        {{{1, 0x0d00000, 0x0d04000, 0x1a4000} } },/* 13: TMR */
 162        {{{1, 0x0e00000, 0x0e04000, 0x1a0000} } },/* 14: ROMUSB */
 163        {{{1, 0x0f00000, 0x0f01000, 0x164000} } },/* 15: PEG4 */
 164        {{{0, 0x1000000, 0x1004000, 0x1a8000} } },/* 16: XDMA */
 165        {{{1, 0x1100000, 0x1101000, 0x160000} } },/* 17: PEG0 */
 166        {{{1, 0x1200000, 0x1201000, 0x161000} } },/* 18: PEG1 */
 167        {{{1, 0x1300000, 0x1301000, 0x162000} } },/* 19: PEG2 */
 168        {{{1, 0x1400000, 0x1401000, 0x163000} } },/* 20: PEG3 */
 169        {{{1, 0x1500000, 0x1501000, 0x165000} } },/* 21: P2ND */
 170        {{{1, 0x1600000, 0x1601000, 0x166000} } },/* 22: P2NI */
 171        {{{0, 0,         0,         0} } },     /* 23: */
 172        {{{0, 0,         0,         0} } },     /* 24: */
 173        {{{0, 0,         0,         0} } },     /* 25: */
 174        {{{0, 0,         0,         0} } },     /* 26: */
 175        {{{0, 0,         0,         0} } },     /* 27: */
 176        {{{0, 0,         0,         0} } },     /* 28: */
 177        {{{1, 0x1d00000, 0x1d10000, 0x190000} } },/* 29: MS */
 178    {{{1, 0x1e00000, 0x1e01000, 0x16a000} } },/* 30: P2NR2 */
 179    {{{1, 0x1f00000, 0x1f10000, 0x150000} } },/* 31: EPG */
 180        {{{0} } },                              /* 32: PCI */
 181        {{{1, 0x2100000, 0x2102000, 0x120000},  /* 33: PCIE */
 182          {1, 0x2110000, 0x2120000, 0x130000},
 183          {1, 0x2120000, 0x2122000, 0x124000},
 184          {1, 0x2130000, 0x2132000, 0x126000},
 185          {1, 0x2140000, 0x2142000, 0x128000},
 186          {1, 0x2150000, 0x2152000, 0x12a000},
 187          {1, 0x2160000, 0x2170000, 0x110000},
 188          {1, 0x2170000, 0x2172000, 0x12e000},
 189          {0, 0x0000000, 0x0000000, 0x000000},
 190          {0, 0x0000000, 0x0000000, 0x000000},
 191          {0, 0x0000000, 0x0000000, 0x000000},
 192          {0, 0x0000000, 0x0000000, 0x000000},
 193          {0, 0x0000000, 0x0000000, 0x000000},
 194          {0, 0x0000000, 0x0000000, 0x000000},
 195          {0, 0x0000000, 0x0000000, 0x000000},
 196          {0, 0x0000000, 0x0000000, 0x000000} } },
 197        {{{1, 0x2200000, 0x2204000, 0x1b0000} } },/* 34: CAM */
 198        {{{0} } },                              /* 35: */
 199        {{{0} } },                              /* 36: */
 200        {{{0} } },                              /* 37: */
 201        {{{0} } },                              /* 38: */
 202        {{{0} } },                              /* 39: */
 203        {{{1, 0x2800000, 0x2804000, 0x1a4000} } },/* 40: TMR */
 204        {{{1, 0x2900000, 0x2901000, 0x16b000} } },/* 41: P2NR3 */
 205        {{{1, 0x2a00000, 0x2a00400, 0x1ac400} } },/* 42: RPMX1 */
 206        {{{1, 0x2b00000, 0x2b00400, 0x1ac800} } },/* 43: RPMX2 */
 207        {{{1, 0x2c00000, 0x2c00400, 0x1acc00} } },/* 44: RPMX3 */
 208        {{{1, 0x2d00000, 0x2d00400, 0x1ad000} } },/* 45: RPMX4 */
 209        {{{1, 0x2e00000, 0x2e00400, 0x1ad400} } },/* 46: RPMX5 */
 210        {{{1, 0x2f00000, 0x2f00400, 0x1ad800} } },/* 47: RPMX6 */
 211        {{{1, 0x3000000, 0x3000400, 0x1adc00} } },/* 48: RPMX7 */
 212        {{{0, 0x3100000, 0x3104000, 0x1a8000} } },/* 49: XDMA */
 213        {{{1, 0x3200000, 0x3204000, 0x1d4000} } },/* 50: I2Q */
 214        {{{1, 0x3300000, 0x3304000, 0x1a0000} } },/* 51: ROMUSB */
 215        {{{0} } },                              /* 52: */
 216        {{{1, 0x3500000, 0x3500400, 0x1ac000} } },/* 53: RPMX0 */
 217        {{{1, 0x3600000, 0x3600400, 0x1ae000} } },/* 54: RPMX8 */
 218        {{{1, 0x3700000, 0x3700400, 0x1ae400} } },/* 55: RPMX9 */
 219        {{{1, 0x3800000, 0x3804000, 0x1d0000} } },/* 56: OCM0 */
 220        {{{1, 0x3900000, 0x3904000, 0x1b4000} } },/* 57: CRYPTO */
 221        {{{1, 0x3a00000, 0x3a04000, 0x1d8000} } },/* 58: SMB */
 222        {{{0} } },                              /* 59: I2C0 */
 223        {{{0} } },                              /* 60: I2C1 */
 224        {{{1, 0x3d00000, 0x3d04000, 0x1d8000} } },/* 61: LPC */
 225        {{{1, 0x3e00000, 0x3e01000, 0x167000} } },/* 62: P2NC */
 226        {{{1, 0x3f00000, 0x3f01000, 0x168000} } }       /* 63: P2NR0 */
 227};
 228
 229/*
 230 * top 12 bits of crb internal address (hub, agent)
 231 */
 232static unsigned crb_hub_agt[64] =
 233{
 234        0,
 235        NETXEN_HW_CRB_HUB_AGT_ADR_PS,
 236        NETXEN_HW_CRB_HUB_AGT_ADR_MN,
 237        NETXEN_HW_CRB_HUB_AGT_ADR_MS,
 238        0,
 239        NETXEN_HW_CRB_HUB_AGT_ADR_SRE,
 240        NETXEN_HW_CRB_HUB_AGT_ADR_NIU,
 241        NETXEN_HW_CRB_HUB_AGT_ADR_QMN,
 242        NETXEN_HW_CRB_HUB_AGT_ADR_SQN0,
 243        NETXEN_HW_CRB_HUB_AGT_ADR_SQN1,
 244        NETXEN_HW_CRB_HUB_AGT_ADR_SQN2,
 245        NETXEN_HW_CRB_HUB_AGT_ADR_SQN3,
 246        NETXEN_HW_CRB_HUB_AGT_ADR_I2Q,
 247        NETXEN_HW_CRB_HUB_AGT_ADR_TIMR,
 248        NETXEN_HW_CRB_HUB_AGT_ADR_ROMUSB,
 249        NETXEN_HW_CRB_HUB_AGT_ADR_PGN4,
 250        NETXEN_HW_CRB_HUB_AGT_ADR_XDMA,
 251        NETXEN_HW_CRB_HUB_AGT_ADR_PGN0,
 252        NETXEN_HW_CRB_HUB_AGT_ADR_PGN1,
 253        NETXEN_HW_CRB_HUB_AGT_ADR_PGN2,
 254        NETXEN_HW_CRB_HUB_AGT_ADR_PGN3,
 255        NETXEN_HW_CRB_HUB_AGT_ADR_PGND,
 256        NETXEN_HW_CRB_HUB_AGT_ADR_PGNI,
 257        NETXEN_HW_CRB_HUB_AGT_ADR_PGS0,
 258        NETXEN_HW_CRB_HUB_AGT_ADR_PGS1,
 259        NETXEN_HW_CRB_HUB_AGT_ADR_PGS2,
 260        NETXEN_HW_CRB_HUB_AGT_ADR_PGS3,
 261        0,
 262        NETXEN_HW_CRB_HUB_AGT_ADR_PGSI,
 263        NETXEN_HW_CRB_HUB_AGT_ADR_SN,
 264        0,
 265        NETXEN_HW_CRB_HUB_AGT_ADR_EG,
 266        0,
 267        NETXEN_HW_CRB_HUB_AGT_ADR_PS,
 268        NETXEN_HW_CRB_HUB_AGT_ADR_CAM,
 269        0,
 270        0,
 271        0,
 272        0,
 273        0,
 274        NETXEN_HW_CRB_HUB_AGT_ADR_TIMR,
 275        0,
 276        NETXEN_HW_CRB_HUB_AGT_ADR_RPMX1,
 277        NETXEN_HW_CRB_HUB_AGT_ADR_RPMX2,
 278        NETXEN_HW_CRB_HUB_AGT_ADR_RPMX3,
 279        NETXEN_HW_CRB_HUB_AGT_ADR_RPMX4,
 280        NETXEN_HW_CRB_HUB_AGT_ADR_RPMX5,
 281        NETXEN_HW_CRB_HUB_AGT_ADR_RPMX6,
 282        NETXEN_HW_CRB_HUB_AGT_ADR_RPMX7,
 283        NETXEN_HW_CRB_HUB_AGT_ADR_XDMA,
 284        NETXEN_HW_CRB_HUB_AGT_ADR_I2Q,
 285        NETXEN_HW_CRB_HUB_AGT_ADR_ROMUSB,
 286        0,
 287        NETXEN_HW_CRB_HUB_AGT_ADR_RPMX0,
 288        NETXEN_HW_CRB_HUB_AGT_ADR_RPMX8,
 289        NETXEN_HW_CRB_HUB_AGT_ADR_RPMX9,
 290        NETXEN_HW_CRB_HUB_AGT_ADR_OCM0,
 291        0,
 292        NETXEN_HW_CRB_HUB_AGT_ADR_SMB,
 293        NETXEN_HW_CRB_HUB_AGT_ADR_I2C0,
 294        NETXEN_HW_CRB_HUB_AGT_ADR_I2C1,
 295        0,
 296        NETXEN_HW_CRB_HUB_AGT_ADR_PGNC,
 297        0,
 298};
 299
 300/*  PCI Windowing for DDR regions.  */
 301
 302#define NETXEN_WINDOW_ONE       0x2000000 /*CRB Window: bit 25 of CRB address */
 303
 304#define NETXEN_PCIE_SEM_TIMEOUT 10000
 305
 306static int netxen_nic_set_mtu_xgb(struct netxen_adapter *adapter, int new_mtu);
 307
 308int
 309netxen_pcie_sem_lock(struct netxen_adapter *adapter, int sem, u32 id_reg)
 310{
 311        int done = 0, timeout = 0;
 312
 313        while (!done) {
 314                done = NXRD32(adapter, NETXEN_PCIE_REG(PCIE_SEM_LOCK(sem)));
 315                if (done == 1)
 316                        break;
 317                if (++timeout >= NETXEN_PCIE_SEM_TIMEOUT)
 318                        return -EIO;
 319                msleep(1);
 320        }
 321
 322        if (id_reg)
 323                NXWR32(adapter, id_reg, adapter->portnum);
 324
 325        return 0;
 326}
 327
 328void
 329netxen_pcie_sem_unlock(struct netxen_adapter *adapter, int sem)
 330{
 331        NXRD32(adapter, NETXEN_PCIE_REG(PCIE_SEM_UNLOCK(sem)));
 332}
 333
 334static int netxen_niu_xg_init_port(struct netxen_adapter *adapter, int port)
 335{
 336        if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
 337                NXWR32(adapter, NETXEN_NIU_XGE_CONFIG_1+(0x10000*port), 0x1447);
 338                NXWR32(adapter, NETXEN_NIU_XGE_CONFIG_0+(0x10000*port), 0x5);
 339        }
 340
 341        return 0;
 342}
 343
 344/* Disable an XG interface */
 345static int netxen_niu_disable_xg_port(struct netxen_adapter *adapter)
 346{
 347        __u32 mac_cfg;
 348        u32 port = adapter->physical_port;
 349
 350        if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
 351                return 0;
 352
 353        if (port >= NETXEN_NIU_MAX_XG_PORTS)
 354                return -EINVAL;
 355
 356        mac_cfg = 0;
 357        if (NXWR32(adapter,
 358                        NETXEN_NIU_XGE_CONFIG_0 + (0x10000 * port), mac_cfg))
 359                return -EIO;
 360        return 0;
 361}
 362
 363#define NETXEN_UNICAST_ADDR(port, index) \
 364        (NETXEN_UNICAST_ADDR_BASE+(port*32)+(index*8))
 365#define NETXEN_MCAST_ADDR(port, index) \
 366        (NETXEN_MULTICAST_ADDR_BASE+(port*0x80)+(index*8))
 367#define MAC_HI(addr) \
 368        ((addr[2] << 16) | (addr[1] << 8) | (addr[0]))
 369#define MAC_LO(addr) \
 370        ((addr[5] << 16) | (addr[4] << 8) | (addr[3]))
 371
 372static int netxen_p2_nic_set_promisc(struct netxen_adapter *adapter, u32 mode)
 373{
 374        u32 mac_cfg;
 375        u32 cnt = 0;
 376        __u32 reg = 0x0200;
 377        u32 port = adapter->physical_port;
 378        u16 board_type = adapter->ahw.board_type;
 379
 380        if (port >= NETXEN_NIU_MAX_XG_PORTS)
 381                return -EINVAL;
 382
 383        mac_cfg = NXRD32(adapter, NETXEN_NIU_XGE_CONFIG_0 + (0x10000 * port));
 384        mac_cfg &= ~0x4;
 385        NXWR32(adapter, NETXEN_NIU_XGE_CONFIG_0 + (0x10000 * port), mac_cfg);
 386
 387        if ((board_type == NETXEN_BRDTYPE_P2_SB31_10G_IMEZ) ||
 388                        (board_type == NETXEN_BRDTYPE_P2_SB31_10G_HMEZ))
 389                reg = (0x20 << port);
 390
 391        NXWR32(adapter, NETXEN_NIU_FRAME_COUNT_SELECT, reg);
 392
 393        mdelay(10);
 394
 395        while (NXRD32(adapter, NETXEN_NIU_FRAME_COUNT) && ++cnt < 20)
 396                mdelay(10);
 397
 398        if (cnt < 20) {
 399
 400                reg = NXRD32(adapter,
 401                        NETXEN_NIU_XGE_CONFIG_1 + (0x10000 * port));
 402
 403                if (mode == NETXEN_NIU_PROMISC_MODE)
 404                        reg = (reg | 0x2000UL);
 405                else
 406                        reg = (reg & ~0x2000UL);
 407
 408                if (mode == NETXEN_NIU_ALLMULTI_MODE)
 409                        reg = (reg | 0x1000UL);
 410                else
 411                        reg = (reg & ~0x1000UL);
 412
 413                NXWR32(adapter,
 414                        NETXEN_NIU_XGE_CONFIG_1 + (0x10000 * port), reg);
 415        }
 416
 417        mac_cfg |= 0x4;
 418        NXWR32(adapter, NETXEN_NIU_XGE_CONFIG_0 + (0x10000 * port), mac_cfg);
 419
 420        return 0;
 421}
 422
 423static int netxen_p2_nic_set_mac_addr(struct netxen_adapter *adapter, u8 *addr)
 424{
 425        u32 mac_hi, mac_lo;
 426        u32 reg_hi, reg_lo;
 427
 428        u8 phy = adapter->physical_port;
 429
 430        if (phy >= NETXEN_NIU_MAX_XG_PORTS)
 431                return -EINVAL;
 432
 433        mac_lo = ((u32)addr[0] << 16) | ((u32)addr[1] << 24);
 434        mac_hi = addr[2] | ((u32)addr[3] << 8) |
 435                ((u32)addr[4] << 16) | ((u32)addr[5] << 24);
 436
 437        reg_lo = NETXEN_NIU_XGE_STATION_ADDR_0_1 + (0x10000 * phy);
 438        reg_hi = NETXEN_NIU_XGE_STATION_ADDR_0_HI + (0x10000 * phy);
 439
 440        /* write twice to flush */
 441        if (NXWR32(adapter, reg_lo, mac_lo) || NXWR32(adapter, reg_hi, mac_hi))
 442                return -EIO;
 443        if (NXWR32(adapter, reg_lo, mac_lo) || NXWR32(adapter, reg_hi, mac_hi))
 444                return -EIO;
 445
 446        return 0;
 447}
 448
 449static int
 450netxen_nic_enable_mcast_filter(struct netxen_adapter *adapter)
 451{
 452        u32     val = 0;
 453        u16 port = adapter->physical_port;
 454        u8 *addr = adapter->mac_addr;
 455
 456        if (adapter->mc_enabled)
 457                return 0;
 458
 459        val = NXRD32(adapter, NETXEN_MAC_ADDR_CNTL_REG);
 460        val |= (1UL << (28+port));
 461        NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
 462
 463        /* add broadcast addr to filter */
 464        val = 0xffffff;
 465        NXWR32(adapter, NETXEN_UNICAST_ADDR(port, 0), val);
 466        NXWR32(adapter, NETXEN_UNICAST_ADDR(port, 0)+4, val);
 467
 468        /* add station addr to filter */
 469        val = MAC_HI(addr);
 470        NXWR32(adapter, NETXEN_UNICAST_ADDR(port, 1), val);
 471        val = MAC_LO(addr);
 472        NXWR32(adapter, NETXEN_UNICAST_ADDR(port, 1)+4, val);
 473
 474        adapter->mc_enabled = 1;
 475        return 0;
 476}
 477
 478static int
 479netxen_nic_disable_mcast_filter(struct netxen_adapter *adapter)
 480{
 481        u32     val = 0;
 482        u16 port = adapter->physical_port;
 483        u8 *addr = adapter->mac_addr;
 484
 485        if (!adapter->mc_enabled)
 486                return 0;
 487
 488        val = NXRD32(adapter, NETXEN_MAC_ADDR_CNTL_REG);
 489        val &= ~(1UL << (28+port));
 490        NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
 491
 492        val = MAC_HI(addr);
 493        NXWR32(adapter, NETXEN_UNICAST_ADDR(port, 0), val);
 494        val = MAC_LO(addr);
 495        NXWR32(adapter, NETXEN_UNICAST_ADDR(port, 0)+4, val);
 496
 497        NXWR32(adapter, NETXEN_UNICAST_ADDR(port, 1), 0);
 498        NXWR32(adapter, NETXEN_UNICAST_ADDR(port, 1)+4, 0);
 499
 500        adapter->mc_enabled = 0;
 501        return 0;
 502}
 503
 504static int
 505netxen_nic_set_mcast_addr(struct netxen_adapter *adapter,
 506                int index, u8 *addr)
 507{
 508        u32 hi = 0, lo = 0;
 509        u16 port = adapter->physical_port;
 510
 511        lo = MAC_LO(addr);
 512        hi = MAC_HI(addr);
 513
 514        NXWR32(adapter, NETXEN_MCAST_ADDR(port, index), hi);
 515        NXWR32(adapter, NETXEN_MCAST_ADDR(port, index)+4, lo);
 516
 517        return 0;
 518}
 519
 520static void netxen_p2_nic_set_multi(struct net_device *netdev)
 521{
 522        struct netxen_adapter *adapter = netdev_priv(netdev);
 523        struct netdev_hw_addr *ha;
 524        u8 null_addr[ETH_ALEN];
 525        int i;
 526
 527        eth_zero_addr(null_addr);
 528
 529        if (netdev->flags & IFF_PROMISC) {
 530
 531                adapter->set_promisc(adapter,
 532                                NETXEN_NIU_PROMISC_MODE);
 533
 534                /* Full promiscuous mode */
 535                netxen_nic_disable_mcast_filter(adapter);
 536
 537                return;
 538        }
 539
 540        if (netdev_mc_empty(netdev)) {
 541                adapter->set_promisc(adapter,
 542                                NETXEN_NIU_NON_PROMISC_MODE);
 543                netxen_nic_disable_mcast_filter(adapter);
 544                return;
 545        }
 546
 547        adapter->set_promisc(adapter, NETXEN_NIU_ALLMULTI_MODE);
 548        if (netdev->flags & IFF_ALLMULTI ||
 549                        netdev_mc_count(netdev) > adapter->max_mc_count) {
 550                netxen_nic_disable_mcast_filter(adapter);
 551                return;
 552        }
 553
 554        netxen_nic_enable_mcast_filter(adapter);
 555
 556        i = 0;
 557        netdev_for_each_mc_addr(ha, netdev)
 558                netxen_nic_set_mcast_addr(adapter, i++, ha->addr);
 559
 560        /* Clear out remaining addresses */
 561        while (i < adapter->max_mc_count)
 562                netxen_nic_set_mcast_addr(adapter, i++, null_addr);
 563}
 564
 565static int
 566netxen_send_cmd_descs(struct netxen_adapter *adapter,
 567                struct cmd_desc_type0 *cmd_desc_arr, int nr_desc)
 568{
 569        u32 i, producer, consumer;
 570        struct netxen_cmd_buffer *pbuf;
 571        struct cmd_desc_type0 *cmd_desc;
 572        struct nx_host_tx_ring *tx_ring;
 573
 574        i = 0;
 575
 576        if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
 577                return -EIO;
 578
 579        tx_ring = adapter->tx_ring;
 580        __netif_tx_lock_bh(tx_ring->txq);
 581
 582        producer = tx_ring->producer;
 583        consumer = tx_ring->sw_consumer;
 584
 585        if (nr_desc >= netxen_tx_avail(tx_ring)) {
 586                netif_tx_stop_queue(tx_ring->txq);
 587                smp_mb();
 588                if (netxen_tx_avail(tx_ring) > nr_desc) {
 589                        if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH)
 590                                netif_tx_wake_queue(tx_ring->txq);
 591                } else {
 592                        __netif_tx_unlock_bh(tx_ring->txq);
 593                        return -EBUSY;
 594                }
 595        }
 596
 597        do {
 598                cmd_desc = &cmd_desc_arr[i];
 599
 600                pbuf = &tx_ring->cmd_buf_arr[producer];
 601                pbuf->skb = NULL;
 602                pbuf->frag_count = 0;
 603
 604                memcpy(&tx_ring->desc_head[producer],
 605                        &cmd_desc_arr[i], sizeof(struct cmd_desc_type0));
 606
 607                producer = get_next_index(producer, tx_ring->num_desc);
 608                i++;
 609
 610        } while (i != nr_desc);
 611
 612        tx_ring->producer = producer;
 613
 614        netxen_nic_update_cmd_producer(adapter, tx_ring);
 615
 616        __netif_tx_unlock_bh(tx_ring->txq);
 617
 618        return 0;
 619}
 620
 621static int
 622nx_p3_sre_macaddr_change(struct netxen_adapter *adapter, u8 *addr, unsigned op)
 623{
 624        nx_nic_req_t req;
 625        nx_mac_req_t *mac_req;
 626        u64 word;
 627
 628        memset(&req, 0, sizeof(nx_nic_req_t));
 629        req.qhdr = cpu_to_le64(NX_NIC_REQUEST << 23);
 630
 631        word = NX_MAC_EVENT | ((u64)adapter->portnum << 16);
 632        req.req_hdr = cpu_to_le64(word);
 633
 634        mac_req = (nx_mac_req_t *)&req.words[0];
 635        mac_req->op = op;
 636        memcpy(mac_req->mac_addr, addr, ETH_ALEN);
 637
 638        return netxen_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 639}
 640
 641static int nx_p3_nic_add_mac(struct netxen_adapter *adapter,
 642                const u8 *addr, struct list_head *del_list)
 643{
 644        struct list_head *head;
 645        nx_mac_list_t *cur;
 646
 647        /* look up if already exists */
 648        list_for_each(head, del_list) {
 649                cur = list_entry(head, nx_mac_list_t, list);
 650
 651                if (ether_addr_equal(addr, cur->mac_addr)) {
 652                        list_move_tail(head, &adapter->mac_list);
 653                        return 0;
 654                }
 655        }
 656
 657        cur = kzalloc(sizeof(nx_mac_list_t), GFP_ATOMIC);
 658        if (cur == NULL)
 659                return -ENOMEM;
 660
 661        memcpy(cur->mac_addr, addr, ETH_ALEN);
 662        list_add_tail(&cur->list, &adapter->mac_list);
 663        return nx_p3_sre_macaddr_change(adapter,
 664                                cur->mac_addr, NETXEN_MAC_ADD);
 665}
 666
 667static void netxen_p3_nic_set_multi(struct net_device *netdev)
 668{
 669        struct netxen_adapter *adapter = netdev_priv(netdev);
 670        struct netdev_hw_addr *ha;
 671        static const u8 bcast_addr[ETH_ALEN] = {
 672                0xff, 0xff, 0xff, 0xff, 0xff, 0xff
 673        };
 674        u32 mode = VPORT_MISS_MODE_DROP;
 675        LIST_HEAD(del_list);
 676        struct list_head *head;
 677        nx_mac_list_t *cur;
 678
 679        if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
 680                return;
 681
 682        list_splice_tail_init(&adapter->mac_list, &del_list);
 683
 684        nx_p3_nic_add_mac(adapter, adapter->mac_addr, &del_list);
 685        nx_p3_nic_add_mac(adapter, bcast_addr, &del_list);
 686
 687        if (netdev->flags & IFF_PROMISC) {
 688                mode = VPORT_MISS_MODE_ACCEPT_ALL;
 689                goto send_fw_cmd;
 690        }
 691
 692        if ((netdev->flags & IFF_ALLMULTI) ||
 693                        (netdev_mc_count(netdev) > adapter->max_mc_count)) {
 694                mode = VPORT_MISS_MODE_ACCEPT_MULTI;
 695                goto send_fw_cmd;
 696        }
 697
 698        if (!netdev_mc_empty(netdev)) {
 699                netdev_for_each_mc_addr(ha, netdev)
 700                        nx_p3_nic_add_mac(adapter, ha->addr, &del_list);
 701        }
 702
 703send_fw_cmd:
 704        adapter->set_promisc(adapter, mode);
 705        head = &del_list;
 706        while (!list_empty(head)) {
 707                cur = list_entry(head->next, nx_mac_list_t, list);
 708
 709                nx_p3_sre_macaddr_change(adapter,
 710                                cur->mac_addr, NETXEN_MAC_DEL);
 711                list_del(&cur->list);
 712                kfree(cur);
 713        }
 714}
 715
 716static int netxen_p3_nic_set_promisc(struct netxen_adapter *adapter, u32 mode)
 717{
 718        nx_nic_req_t req;
 719        u64 word;
 720
 721        memset(&req, 0, sizeof(nx_nic_req_t));
 722
 723        req.qhdr = cpu_to_le64(NX_HOST_REQUEST << 23);
 724
 725        word = NX_NIC_H2C_OPCODE_PROXY_SET_VPORT_MISS_MODE |
 726                        ((u64)adapter->portnum << 16);
 727        req.req_hdr = cpu_to_le64(word);
 728
 729        req.words[0] = cpu_to_le64(mode);
 730
 731        return netxen_send_cmd_descs(adapter,
 732                                (struct cmd_desc_type0 *)&req, 1);
 733}
 734
 735void netxen_p3_free_mac_list(struct netxen_adapter *adapter)
 736{
 737        nx_mac_list_t *cur;
 738        struct list_head *head = &adapter->mac_list;
 739
 740        while (!list_empty(head)) {
 741                cur = list_entry(head->next, nx_mac_list_t, list);
 742                nx_p3_sre_macaddr_change(adapter,
 743                                cur->mac_addr, NETXEN_MAC_DEL);
 744                list_del(&cur->list);
 745                kfree(cur);
 746        }
 747}
 748
 749static int netxen_p3_nic_set_mac_addr(struct netxen_adapter *adapter, u8 *addr)
 750{
 751        /* assuming caller has already copied new addr to netdev */
 752        netxen_p3_nic_set_multi(adapter->netdev);
 753        return 0;
 754}
 755
 756#define NETXEN_CONFIG_INTR_COALESCE     3
 757
 758/*
 759 * Send the interrupt coalescing parameter set by ethtool to the card.
 760 */
 761int netxen_config_intr_coalesce(struct netxen_adapter *adapter)
 762{
 763        nx_nic_req_t req;
 764        u64 word[6];
 765        int rv, i;
 766
 767        memset(&req, 0, sizeof(nx_nic_req_t));
 768        memset(word, 0, sizeof(word));
 769
 770        req.qhdr = cpu_to_le64(NX_HOST_REQUEST << 23);
 771
 772        word[0] = NETXEN_CONFIG_INTR_COALESCE | ((u64)adapter->portnum << 16);
 773        req.req_hdr = cpu_to_le64(word[0]);
 774
 775        memcpy(&word[0], &adapter->coal, sizeof(adapter->coal));
 776        for (i = 0; i < 6; i++)
 777                req.words[i] = cpu_to_le64(word[i]);
 778
 779        rv = netxen_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 780        if (rv != 0) {
 781                printk(KERN_ERR "ERROR. Could not send "
 782                        "interrupt coalescing parameters\n");
 783        }
 784
 785        return rv;
 786}
 787
 788int netxen_config_hw_lro(struct netxen_adapter *adapter, int enable)
 789{
 790        nx_nic_req_t req;
 791        u64 word;
 792        int rv = 0;
 793
 794        if (!test_bit(__NX_FW_ATTACHED, &adapter->state))
 795                return 0;
 796
 797        memset(&req, 0, sizeof(nx_nic_req_t));
 798
 799        req.qhdr = cpu_to_le64(NX_HOST_REQUEST << 23);
 800
 801        word = NX_NIC_H2C_OPCODE_CONFIG_HW_LRO | ((u64)adapter->portnum << 16);
 802        req.req_hdr = cpu_to_le64(word);
 803
 804        req.words[0] = cpu_to_le64(enable);
 805
 806        rv = netxen_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 807        if (rv != 0) {
 808                printk(KERN_ERR "ERROR. Could not send "
 809                        "configure hw lro request\n");
 810        }
 811
 812        return rv;
 813}
 814
 815int netxen_config_bridged_mode(struct netxen_adapter *adapter, int enable)
 816{
 817        nx_nic_req_t req;
 818        u64 word;
 819        int rv = 0;
 820
 821        if (!!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED) == enable)
 822                return rv;
 823
 824        memset(&req, 0, sizeof(nx_nic_req_t));
 825
 826        req.qhdr = cpu_to_le64(NX_HOST_REQUEST << 23);
 827
 828        word = NX_NIC_H2C_OPCODE_CONFIG_BRIDGING |
 829                ((u64)adapter->portnum << 16);
 830        req.req_hdr = cpu_to_le64(word);
 831
 832        req.words[0] = cpu_to_le64(enable);
 833
 834        rv = netxen_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 835        if (rv != 0) {
 836                printk(KERN_ERR "ERROR. Could not send "
 837                                "configure bridge mode request\n");
 838        }
 839
 840        adapter->flags ^= NETXEN_NIC_BRIDGE_ENABLED;
 841
 842        return rv;
 843}
 844
 845
 846#define RSS_HASHTYPE_IP_TCP     0x3
 847
 848int netxen_config_rss(struct netxen_adapter *adapter, int enable)
 849{
 850        nx_nic_req_t req;
 851        u64 word;
 852        int i, rv;
 853
 854        static const u64 key[] = {
 855                0xbeac01fa6a42b73bULL, 0x8030f20c77cb2da3ULL,
 856                0xae7b30b4d0ca2bcbULL, 0x43a38fb04167253dULL,
 857                0x255b0ec26d5a56daULL
 858        };
 859
 860
 861        memset(&req, 0, sizeof(nx_nic_req_t));
 862        req.qhdr = cpu_to_le64(NX_HOST_REQUEST << 23);
 863
 864        word = NX_NIC_H2C_OPCODE_CONFIG_RSS | ((u64)adapter->portnum << 16);
 865        req.req_hdr = cpu_to_le64(word);
 866
 867        /*
 868         * RSS request:
 869         * bits 3-0: hash_method
 870         *      5-4: hash_type_ipv4
 871         *      7-6: hash_type_ipv6
 872         *        8: enable
 873         *        9: use indirection table
 874         *    47-10: reserved
 875         *    63-48: indirection table mask
 876         */
 877        word =  ((u64)(RSS_HASHTYPE_IP_TCP & 0x3) << 4) |
 878                ((u64)(RSS_HASHTYPE_IP_TCP & 0x3) << 6) |
 879                ((u64)(enable & 0x1) << 8) |
 880                ((0x7ULL) << 48);
 881        req.words[0] = cpu_to_le64(word);
 882        for (i = 0; i < ARRAY_SIZE(key); i++)
 883                req.words[i+1] = cpu_to_le64(key[i]);
 884
 885
 886        rv = netxen_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 887        if (rv != 0) {
 888                printk(KERN_ERR "%s: could not configure RSS\n",
 889                                adapter->netdev->name);
 890        }
 891
 892        return rv;
 893}
 894
 895int netxen_config_ipaddr(struct netxen_adapter *adapter, __be32 ip, int cmd)
 896{
 897        nx_nic_req_t req;
 898        u64 word;
 899        int rv;
 900
 901        memset(&req, 0, sizeof(nx_nic_req_t));
 902        req.qhdr = cpu_to_le64(NX_HOST_REQUEST << 23);
 903
 904        word = NX_NIC_H2C_OPCODE_CONFIG_IPADDR | ((u64)adapter->portnum << 16);
 905        req.req_hdr = cpu_to_le64(word);
 906
 907        req.words[0] = cpu_to_le64(cmd);
 908        memcpy(&req.words[1], &ip, sizeof(u32));
 909
 910        rv = netxen_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 911        if (rv != 0) {
 912                printk(KERN_ERR "%s: could not notify %s IP 0x%x request\n",
 913                                adapter->netdev->name,
 914                                (cmd == NX_IP_UP) ? "Add" : "Remove", ip);
 915        }
 916        return rv;
 917}
 918
 919int netxen_linkevent_request(struct netxen_adapter *adapter, int enable)
 920{
 921        nx_nic_req_t req;
 922        u64 word;
 923        int rv;
 924
 925        memset(&req, 0, sizeof(nx_nic_req_t));
 926        req.qhdr = cpu_to_le64(NX_HOST_REQUEST << 23);
 927
 928        word = NX_NIC_H2C_OPCODE_GET_LINKEVENT | ((u64)adapter->portnum << 16);
 929        req.req_hdr = cpu_to_le64(word);
 930        req.words[0] = cpu_to_le64(enable | (enable << 8));
 931
 932        rv = netxen_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 933        if (rv != 0) {
 934                printk(KERN_ERR "%s: could not configure link notification\n",
 935                                adapter->netdev->name);
 936        }
 937
 938        return rv;
 939}
 940
 941int netxen_send_lro_cleanup(struct netxen_adapter *adapter)
 942{
 943        nx_nic_req_t req;
 944        u64 word;
 945        int rv;
 946
 947        if (!test_bit(__NX_FW_ATTACHED, &adapter->state))
 948                return 0;
 949
 950        memset(&req, 0, sizeof(nx_nic_req_t));
 951        req.qhdr = cpu_to_le64(NX_HOST_REQUEST << 23);
 952
 953        word = NX_NIC_H2C_OPCODE_LRO_REQUEST |
 954                ((u64)adapter->portnum << 16) |
 955                ((u64)NX_NIC_LRO_REQUEST_CLEANUP << 56) ;
 956
 957        req.req_hdr = cpu_to_le64(word);
 958
 959        rv = netxen_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 960        if (rv != 0) {
 961                printk(KERN_ERR "%s: could not cleanup lro flows\n",
 962                                adapter->netdev->name);
 963        }
 964        return rv;
 965}
 966
 967/*
 968 * netxen_nic_change_mtu - Change the Maximum Transfer Unit
 969 * @returns 0 on success, negative on failure
 970 */
 971
 972#define MTU_FUDGE_FACTOR        100
 973
 974int netxen_nic_change_mtu(struct net_device *netdev, int mtu)
 975{
 976        struct netxen_adapter *adapter = netdev_priv(netdev);
 977        int rc = 0;
 978
 979        if (adapter->set_mtu)
 980                rc = adapter->set_mtu(adapter, mtu);
 981
 982        if (!rc)
 983                netdev->mtu = mtu;
 984
 985        return rc;
 986}
 987
 988static int netxen_get_flash_block(struct netxen_adapter *adapter, int base,
 989                                  int size, __le32 * buf)
 990{
 991        int i, v, addr;
 992        __le32 *ptr32;
 993        int ret;
 994
 995        addr = base;
 996        ptr32 = buf;
 997        for (i = 0; i < size / sizeof(u32); i++) {
 998                ret = netxen_rom_fast_read(adapter, addr, &v);
 999                if (ret)
1000                        return ret;
1001
1002                *ptr32 = cpu_to_le32(v);
1003                ptr32++;
1004                addr += sizeof(u32);
1005        }
1006        if ((char *)buf + size > (char *)ptr32) {
1007                __le32 local;
1008                ret = netxen_rom_fast_read(adapter, addr, &v);
1009                if (ret)
1010                        return ret;
1011                local = cpu_to_le32(v);
1012                memcpy(ptr32, &local, (char *)buf + size - (char *)ptr32);
1013        }
1014
1015        return 0;
1016}
1017
1018int netxen_get_flash_mac_addr(struct netxen_adapter *adapter, u64 *mac)
1019{
1020        __le32 *pmac = (__le32 *) mac;
1021        u32 offset;
1022
1023        offset = NX_FW_MAC_ADDR_OFFSET + (adapter->portnum * sizeof(u64));
1024
1025        if (netxen_get_flash_block(adapter, offset, sizeof(u64), pmac) == -1)
1026                return -1;
1027
1028        if (*mac == ~0ULL) {
1029
1030                offset = NX_OLD_MAC_ADDR_OFFSET +
1031                        (adapter->portnum * sizeof(u64));
1032
1033                if (netxen_get_flash_block(adapter,
1034                                        offset, sizeof(u64), pmac) == -1)
1035                        return -1;
1036
1037                if (*mac == ~0ULL)
1038                        return -1;
1039        }
1040        return 0;
1041}
1042
1043int netxen_p3_get_mac_addr(struct netxen_adapter *adapter, u64 *mac)
1044{
1045        uint32_t crbaddr, mac_hi, mac_lo;
1046        int pci_func = adapter->ahw.pci_func;
1047
1048        crbaddr = CRB_MAC_BLOCK_START +
1049                (4 * ((pci_func/2) * 3)) + (4 * (pci_func & 1));
1050
1051        mac_lo = NXRD32(adapter, crbaddr);
1052        mac_hi = NXRD32(adapter, crbaddr+4);
1053
1054        if (pci_func & 1)
1055                *mac = le64_to_cpu((mac_lo >> 16) | ((u64)mac_hi << 16));
1056        else
1057                *mac = le64_to_cpu((u64)mac_lo | ((u64)mac_hi << 32));
1058
1059        return 0;
1060}
1061
1062/*
1063 * Changes the CRB window to the specified window.
1064 */
1065static void
1066netxen_nic_pci_set_crbwindow_128M(struct netxen_adapter *adapter,
1067                u32 window)
1068{
1069        void __iomem *offset;
1070        int count = 10;
1071        u8 func = adapter->ahw.pci_func;
1072
1073        if (adapter->ahw.crb_win == window)
1074                return;
1075
1076        offset = PCI_OFFSET_SECOND_RANGE(adapter,
1077                        NETXEN_PCIX_PH_REG(PCIE_CRB_WINDOW_REG(func)));
1078
1079        writel(window, offset);
1080        do {
1081                if (window == readl(offset))
1082                        break;
1083
1084                if (printk_ratelimit())
1085                        dev_warn(&adapter->pdev->dev,
1086                                        "failed to set CRB window to %d\n",
1087                                        (window == NETXEN_WINDOW_ONE));
1088                udelay(1);
1089
1090        } while (--count > 0);
1091
1092        if (count > 0)
1093                adapter->ahw.crb_win = window;
1094}
1095
1096/*
1097 * Returns < 0 if off is not valid,
1098 *       1 if window access is needed. 'off' is set to offset from
1099 *         CRB space in 128M pci map
1100 *       0 if no window access is needed. 'off' is set to 2M addr
1101 * In: 'off' is offset from base in 128M pci map
1102 */
1103static int
1104netxen_nic_pci_get_crb_addr_2M(struct netxen_adapter *adapter,
1105                ulong off, void __iomem **addr)
1106{
1107        crb_128M_2M_sub_block_map_t *m;
1108
1109
1110        if ((off >= NETXEN_CRB_MAX) || (off < NETXEN_PCI_CRBSPACE))
1111                return -EINVAL;
1112
1113        off -= NETXEN_PCI_CRBSPACE;
1114
1115        /*
1116         * Try direct map
1117         */
1118        m = &crb_128M_2M_map[CRB_BLK(off)].sub_block[CRB_SUBBLK(off)];
1119
1120        if (m->valid && (m->start_128M <= off) && (m->end_128M > off)) {
1121                *addr = adapter->ahw.pci_base0 + m->start_2M +
1122                        (off - m->start_128M);
1123                return 0;
1124        }
1125
1126        /*
1127         * Not in direct map, use crb window
1128         */
1129        *addr = adapter->ahw.pci_base0 + CRB_INDIRECT_2M +
1130                (off & MASK(16));
1131        return 1;
1132}
1133
1134/*
1135 * In: 'off' is offset from CRB space in 128M pci map
1136 * Out: 'off' is 2M pci map addr
1137 * side effect: lock crb window
1138 */
1139static void
1140netxen_nic_pci_set_crbwindow_2M(struct netxen_adapter *adapter, ulong off)
1141{
1142        u32 window;
1143        void __iomem *addr = adapter->ahw.pci_base0 + CRB_WINDOW_2M;
1144
1145        off -= NETXEN_PCI_CRBSPACE;
1146
1147        window = CRB_HI(off);
1148
1149        writel(window, addr);
1150        if (readl(addr) != window) {
1151                if (printk_ratelimit())
1152                        dev_warn(&adapter->pdev->dev,
1153                                "failed to set CRB window to %d off 0x%lx\n",
1154                                window, off);
1155        }
1156}
1157
1158static void __iomem *
1159netxen_nic_map_indirect_address_128M(struct netxen_adapter *adapter,
1160                ulong win_off, void __iomem **mem_ptr)
1161{
1162        ulong off = win_off;
1163        void __iomem *addr;
1164        resource_size_t mem_base;
1165
1166        if (ADDR_IN_WINDOW1(win_off))
1167                off = NETXEN_CRB_NORMAL(win_off);
1168
1169        addr = pci_base_offset(adapter, off);
1170        if (addr)
1171                return addr;
1172
1173        if (adapter->ahw.pci_len0 == 0)
1174                off -= NETXEN_PCI_CRBSPACE;
1175
1176        mem_base = pci_resource_start(adapter->pdev, 0);
1177        *mem_ptr = ioremap(mem_base + (off & PAGE_MASK), PAGE_SIZE);
1178        if (*mem_ptr)
1179                addr = *mem_ptr + (off & (PAGE_SIZE - 1));
1180
1181        return addr;
1182}
1183
1184static int
1185netxen_nic_hw_write_wx_128M(struct netxen_adapter *adapter, ulong off, u32 data)
1186{
1187        unsigned long flags;
1188        void __iomem *addr, *mem_ptr = NULL;
1189
1190        addr = netxen_nic_map_indirect_address_128M(adapter, off, &mem_ptr);
1191        if (!addr)
1192                return -EIO;
1193
1194        if (ADDR_IN_WINDOW1(off)) { /* Window 1 */
1195                netxen_nic_io_write_128M(adapter, addr, data);
1196        } else {        /* Window 0 */
1197                write_lock_irqsave(&adapter->ahw.crb_lock, flags);
1198                netxen_nic_pci_set_crbwindow_128M(adapter, 0);
1199                writel(data, addr);
1200                netxen_nic_pci_set_crbwindow_128M(adapter,
1201                                NETXEN_WINDOW_ONE);
1202                write_unlock_irqrestore(&adapter->ahw.crb_lock, flags);
1203        }
1204
1205        if (mem_ptr)
1206                iounmap(mem_ptr);
1207
1208        return 0;
1209}
1210
1211static u32
1212netxen_nic_hw_read_wx_128M(struct netxen_adapter *adapter, ulong off)
1213{
1214        unsigned long flags;
1215        void __iomem *addr, *mem_ptr = NULL;
1216        u32 data;
1217
1218        addr = netxen_nic_map_indirect_address_128M(adapter, off, &mem_ptr);
1219        if (!addr)
1220                return -EIO;
1221
1222        if (ADDR_IN_WINDOW1(off)) { /* Window 1 */
1223                data = netxen_nic_io_read_128M(adapter, addr);
1224        } else {        /* Window 0 */
1225                write_lock_irqsave(&adapter->ahw.crb_lock, flags);
1226                netxen_nic_pci_set_crbwindow_128M(adapter, 0);
1227                data = readl(addr);
1228                netxen_nic_pci_set_crbwindow_128M(adapter,
1229                                NETXEN_WINDOW_ONE);
1230                write_unlock_irqrestore(&adapter->ahw.crb_lock, flags);
1231        }
1232
1233        if (mem_ptr)
1234                iounmap(mem_ptr);
1235
1236        return data;
1237}
1238
1239static int
1240netxen_nic_hw_write_wx_2M(struct netxen_adapter *adapter, ulong off, u32 data)
1241{
1242        unsigned long flags;
1243        int rv;
1244        void __iomem *addr = NULL;
1245
1246        rv = netxen_nic_pci_get_crb_addr_2M(adapter, off, &addr);
1247
1248        if (rv == 0) {
1249                writel(data, addr);
1250                return 0;
1251        }
1252
1253        if (rv > 0) {
1254                /* indirect access */
1255                write_lock_irqsave(&adapter->ahw.crb_lock, flags);
1256                crb_win_lock(adapter);
1257                netxen_nic_pci_set_crbwindow_2M(adapter, off);
1258                writel(data, addr);
1259                crb_win_unlock(adapter);
1260                write_unlock_irqrestore(&adapter->ahw.crb_lock, flags);
1261                return 0;
1262        }
1263
1264        dev_err(&adapter->pdev->dev,
1265                        "%s: invalid offset: 0x%016lx\n", __func__, off);
1266        dump_stack();
1267        return -EIO;
1268}
1269
1270static u32
1271netxen_nic_hw_read_wx_2M(struct netxen_adapter *adapter, ulong off)
1272{
1273        unsigned long flags;
1274        int rv;
1275        u32 data;
1276        void __iomem *addr = NULL;
1277
1278        rv = netxen_nic_pci_get_crb_addr_2M(adapter, off, &addr);
1279
1280        if (rv == 0)
1281                return readl(addr);
1282
1283        if (rv > 0) {
1284                /* indirect access */
1285                write_lock_irqsave(&adapter->ahw.crb_lock, flags);
1286                crb_win_lock(adapter);
1287                netxen_nic_pci_set_crbwindow_2M(adapter, off);
1288                data = readl(addr);
1289                crb_win_unlock(adapter);
1290                write_unlock_irqrestore(&adapter->ahw.crb_lock, flags);
1291                return data;
1292        }
1293
1294        dev_err(&adapter->pdev->dev,
1295                        "%s: invalid offset: 0x%016lx\n", __func__, off);
1296        dump_stack();
1297        return -1;
1298}
1299
1300/* window 1 registers only */
1301static void netxen_nic_io_write_128M(struct netxen_adapter *adapter,
1302                void __iomem *addr, u32 data)
1303{
1304        read_lock(&adapter->ahw.crb_lock);
1305        writel(data, addr);
1306        read_unlock(&adapter->ahw.crb_lock);
1307}
1308
1309static u32 netxen_nic_io_read_128M(struct netxen_adapter *adapter,
1310                void __iomem *addr)
1311{
1312        u32 val;
1313
1314        read_lock(&adapter->ahw.crb_lock);
1315        val = readl(addr);
1316        read_unlock(&adapter->ahw.crb_lock);
1317
1318        return val;
1319}
1320
1321static void netxen_nic_io_write_2M(struct netxen_adapter *adapter,
1322                void __iomem *addr, u32 data)
1323{
1324        writel(data, addr);
1325}
1326
1327static u32 netxen_nic_io_read_2M(struct netxen_adapter *adapter,
1328                void __iomem *addr)
1329{
1330        return readl(addr);
1331}
1332
1333void __iomem *
1334netxen_get_ioaddr(struct netxen_adapter *adapter, u32 offset)
1335{
1336        void __iomem *addr = NULL;
1337
1338        if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1339                if ((offset < NETXEN_CRB_PCIX_HOST2) &&
1340                                (offset > NETXEN_CRB_PCIX_HOST))
1341                        addr = PCI_OFFSET_SECOND_RANGE(adapter, offset);
1342                else
1343                        addr = NETXEN_CRB_NORMALIZE(adapter, offset);
1344        } else {
1345                WARN_ON(netxen_nic_pci_get_crb_addr_2M(adapter,
1346                                        offset, &addr));
1347        }
1348
1349        return addr;
1350}
1351
1352static int
1353netxen_nic_pci_set_window_128M(struct netxen_adapter *adapter,
1354                u64 addr, u32 *start)
1355{
1356        if (ADDR_IN_RANGE(addr, NETXEN_ADDR_OCM0, NETXEN_ADDR_OCM0_MAX)) {
1357                *start = (addr - NETXEN_ADDR_OCM0  + NETXEN_PCI_OCM0);
1358                return 0;
1359        } else if (ADDR_IN_RANGE(addr,
1360                                NETXEN_ADDR_OCM1, NETXEN_ADDR_OCM1_MAX)) {
1361                *start = (addr - NETXEN_ADDR_OCM1 + NETXEN_PCI_OCM1);
1362                return 0;
1363        }
1364
1365        return -EIO;
1366}
1367
1368static int
1369netxen_nic_pci_set_window_2M(struct netxen_adapter *adapter,
1370                u64 addr, u32 *start)
1371{
1372        u32 window;
1373
1374        window = OCM_WIN(addr);
1375
1376        writel(window, adapter->ahw.ocm_win_crb);
1377        /* read back to flush */
1378        readl(adapter->ahw.ocm_win_crb);
1379
1380        adapter->ahw.ocm_win = window;
1381        *start = NETXEN_PCI_OCM0_2M + GET_MEM_OFFS_2M(addr);
1382        return 0;
1383}
1384
1385static int
1386netxen_nic_pci_mem_access_direct(struct netxen_adapter *adapter, u64 off,
1387                u64 *data, int op)
1388{
1389        void __iomem *addr, *mem_ptr = NULL;
1390        resource_size_t mem_base;
1391        int ret;
1392        u32 start;
1393
1394        spin_lock(&adapter->ahw.mem_lock);
1395
1396        ret = adapter->pci_set_window(adapter, off, &start);
1397        if (ret != 0)
1398                goto unlock;
1399
1400        if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1401                addr = adapter->ahw.pci_base0 + start;
1402        } else {
1403                addr = pci_base_offset(adapter, start);
1404                if (addr)
1405                        goto noremap;
1406
1407                mem_base = pci_resource_start(adapter->pdev, 0) +
1408                                        (start & PAGE_MASK);
1409                mem_ptr = ioremap(mem_base, PAGE_SIZE);
1410                if (mem_ptr == NULL) {
1411                        ret = -EIO;
1412                        goto unlock;
1413                }
1414
1415                addr = mem_ptr + (start & (PAGE_SIZE-1));
1416        }
1417noremap:
1418        if (op == 0)    /* read */
1419                *data = readq(addr);
1420        else            /* write */
1421                writeq(*data, addr);
1422
1423unlock:
1424        spin_unlock(&adapter->ahw.mem_lock);
1425
1426        if (mem_ptr)
1427                iounmap(mem_ptr);
1428        return ret;
1429}
1430
1431void
1432netxen_pci_camqm_read_2M(struct netxen_adapter *adapter, u64 off, u64 *data)
1433{
1434        void __iomem *addr = adapter->ahw.pci_base0 +
1435                NETXEN_PCI_CAMQM_2M_BASE + (off - NETXEN_PCI_CAMQM);
1436
1437        spin_lock(&adapter->ahw.mem_lock);
1438        *data = readq(addr);
1439        spin_unlock(&adapter->ahw.mem_lock);
1440}
1441
1442void
1443netxen_pci_camqm_write_2M(struct netxen_adapter *adapter, u64 off, u64 data)
1444{
1445        void __iomem *addr = adapter->ahw.pci_base0 +
1446                NETXEN_PCI_CAMQM_2M_BASE + (off - NETXEN_PCI_CAMQM);
1447
1448        spin_lock(&adapter->ahw.mem_lock);
1449        writeq(data, addr);
1450        spin_unlock(&adapter->ahw.mem_lock);
1451}
1452
1453#define MAX_CTL_CHECK   1000
1454
1455static int
1456netxen_nic_pci_mem_write_128M(struct netxen_adapter *adapter,
1457                u64 off, u64 data)
1458{
1459        int j, ret;
1460        u32 temp, off_lo, off_hi, addr_hi, data_hi, data_lo;
1461        void __iomem *mem_crb;
1462
1463        /* Only 64-bit aligned access */
1464        if (off & 7)
1465                return -EIO;
1466
1467        /* P2 has different SIU and MIU test agent base addr */
1468        if (ADDR_IN_RANGE(off, NETXEN_ADDR_QDR_NET,
1469                                NETXEN_ADDR_QDR_NET_MAX_P2)) {
1470                mem_crb = pci_base_offset(adapter,
1471                                NETXEN_CRB_QDR_NET+SIU_TEST_AGT_BASE);
1472                addr_hi = SIU_TEST_AGT_ADDR_HI;
1473                data_lo = SIU_TEST_AGT_WRDATA_LO;
1474                data_hi = SIU_TEST_AGT_WRDATA_HI;
1475                off_lo = off & SIU_TEST_AGT_ADDR_MASK;
1476                off_hi = SIU_TEST_AGT_UPPER_ADDR(off);
1477                goto correct;
1478        }
1479
1480        if (ADDR_IN_RANGE(off, NETXEN_ADDR_DDR_NET, NETXEN_ADDR_DDR_NET_MAX)) {
1481                mem_crb = pci_base_offset(adapter,
1482                                NETXEN_CRB_DDR_NET+MIU_TEST_AGT_BASE);
1483                addr_hi = MIU_TEST_AGT_ADDR_HI;
1484                data_lo = MIU_TEST_AGT_WRDATA_LO;
1485                data_hi = MIU_TEST_AGT_WRDATA_HI;
1486                off_lo = off & MIU_TEST_AGT_ADDR_MASK;
1487                off_hi = 0;
1488                goto correct;
1489        }
1490
1491        if (ADDR_IN_RANGE(off, NETXEN_ADDR_OCM0, NETXEN_ADDR_OCM0_MAX) ||
1492                ADDR_IN_RANGE(off, NETXEN_ADDR_OCM1, NETXEN_ADDR_OCM1_MAX)) {
1493                if (adapter->ahw.pci_len0 != 0) {
1494                        return netxen_nic_pci_mem_access_direct(adapter,
1495                                        off, &data, 1);
1496                }
1497        }
1498
1499        return -EIO;
1500
1501correct:
1502        spin_lock(&adapter->ahw.mem_lock);
1503        netxen_nic_pci_set_crbwindow_128M(adapter, 0);
1504
1505        writel(off_lo, (mem_crb + MIU_TEST_AGT_ADDR_LO));
1506        writel(off_hi, (mem_crb + addr_hi));
1507        writel(data & 0xffffffff, (mem_crb + data_lo));
1508        writel((data >> 32) & 0xffffffff, (mem_crb + data_hi));
1509        writel((TA_CTL_ENABLE | TA_CTL_WRITE), (mem_crb + TEST_AGT_CTRL));
1510        writel((TA_CTL_START | TA_CTL_ENABLE | TA_CTL_WRITE),
1511                        (mem_crb + TEST_AGT_CTRL));
1512
1513        for (j = 0; j < MAX_CTL_CHECK; j++) {
1514                temp = readl((mem_crb + TEST_AGT_CTRL));
1515                if ((temp & TA_CTL_BUSY) == 0)
1516                        break;
1517        }
1518
1519        if (j >= MAX_CTL_CHECK) {
1520                if (printk_ratelimit())
1521                        dev_err(&adapter->pdev->dev,
1522                                        "failed to write through agent\n");
1523                ret = -EIO;
1524        } else
1525                ret = 0;
1526
1527        netxen_nic_pci_set_crbwindow_128M(adapter, NETXEN_WINDOW_ONE);
1528        spin_unlock(&adapter->ahw.mem_lock);
1529        return ret;
1530}
1531
1532static int
1533netxen_nic_pci_mem_read_128M(struct netxen_adapter *adapter,
1534                u64 off, u64 *data)
1535{
1536        int j, ret;
1537        u32 temp, off_lo, off_hi, addr_hi, data_hi, data_lo;
1538        u64 val;
1539        void __iomem *mem_crb;
1540
1541        /* Only 64-bit aligned access */
1542        if (off & 7)
1543                return -EIO;
1544
1545        /* P2 has different SIU and MIU test agent base addr */
1546        if (ADDR_IN_RANGE(off, NETXEN_ADDR_QDR_NET,
1547                                NETXEN_ADDR_QDR_NET_MAX_P2)) {
1548                mem_crb = pci_base_offset(adapter,
1549                                NETXEN_CRB_QDR_NET+SIU_TEST_AGT_BASE);
1550                addr_hi = SIU_TEST_AGT_ADDR_HI;
1551                data_lo = SIU_TEST_AGT_RDDATA_LO;
1552                data_hi = SIU_TEST_AGT_RDDATA_HI;
1553                off_lo = off & SIU_TEST_AGT_ADDR_MASK;
1554                off_hi = SIU_TEST_AGT_UPPER_ADDR(off);
1555                goto correct;
1556        }
1557
1558        if (ADDR_IN_RANGE(off, NETXEN_ADDR_DDR_NET, NETXEN_ADDR_DDR_NET_MAX)) {
1559                mem_crb = pci_base_offset(adapter,
1560                                NETXEN_CRB_DDR_NET+MIU_TEST_AGT_BASE);
1561                addr_hi = MIU_TEST_AGT_ADDR_HI;
1562                data_lo = MIU_TEST_AGT_RDDATA_LO;
1563                data_hi = MIU_TEST_AGT_RDDATA_HI;
1564                off_lo = off & MIU_TEST_AGT_ADDR_MASK;
1565                off_hi = 0;
1566                goto correct;
1567        }
1568
1569        if (ADDR_IN_RANGE(off, NETXEN_ADDR_OCM0, NETXEN_ADDR_OCM0_MAX) ||
1570                ADDR_IN_RANGE(off, NETXEN_ADDR_OCM1, NETXEN_ADDR_OCM1_MAX)) {
1571                if (adapter->ahw.pci_len0 != 0) {
1572                        return netxen_nic_pci_mem_access_direct(adapter,
1573                                        off, data, 0);
1574                }
1575        }
1576
1577        return -EIO;
1578
1579correct:
1580        spin_lock(&adapter->ahw.mem_lock);
1581        netxen_nic_pci_set_crbwindow_128M(adapter, 0);
1582
1583        writel(off_lo, (mem_crb + MIU_TEST_AGT_ADDR_LO));
1584        writel(off_hi, (mem_crb + addr_hi));
1585        writel(TA_CTL_ENABLE, (mem_crb + TEST_AGT_CTRL));
1586        writel((TA_CTL_START|TA_CTL_ENABLE), (mem_crb + TEST_AGT_CTRL));
1587
1588        for (j = 0; j < MAX_CTL_CHECK; j++) {
1589                temp = readl(mem_crb + TEST_AGT_CTRL);
1590                if ((temp & TA_CTL_BUSY) == 0)
1591                        break;
1592        }
1593
1594        if (j >= MAX_CTL_CHECK) {
1595                if (printk_ratelimit())
1596                        dev_err(&adapter->pdev->dev,
1597                                        "failed to read through agent\n");
1598                ret = -EIO;
1599        } else {
1600
1601                temp = readl(mem_crb + data_hi);
1602                val = ((u64)temp << 32);
1603                val |= readl(mem_crb + data_lo);
1604                *data = val;
1605                ret = 0;
1606        }
1607
1608        netxen_nic_pci_set_crbwindow_128M(adapter, NETXEN_WINDOW_ONE);
1609        spin_unlock(&adapter->ahw.mem_lock);
1610
1611        return ret;
1612}
1613
1614static int
1615netxen_nic_pci_mem_write_2M(struct netxen_adapter *adapter,
1616                u64 off, u64 data)
1617{
1618        int j, ret;
1619        u32 temp, off8;
1620        void __iomem *mem_crb;
1621
1622        /* Only 64-bit aligned access */
1623        if (off & 7)
1624                return -EIO;
1625
1626        /* P3 onward, test agent base for MIU and SIU is same */
1627        if (ADDR_IN_RANGE(off, NETXEN_ADDR_QDR_NET,
1628                                NETXEN_ADDR_QDR_NET_MAX_P3)) {
1629                mem_crb = netxen_get_ioaddr(adapter,
1630                                NETXEN_CRB_QDR_NET+MIU_TEST_AGT_BASE);
1631                goto correct;
1632        }
1633
1634        if (ADDR_IN_RANGE(off, NETXEN_ADDR_DDR_NET, NETXEN_ADDR_DDR_NET_MAX)) {
1635                mem_crb = netxen_get_ioaddr(adapter,
1636                                NETXEN_CRB_DDR_NET+MIU_TEST_AGT_BASE);
1637                goto correct;
1638        }
1639
1640        if (ADDR_IN_RANGE(off, NETXEN_ADDR_OCM0, NETXEN_ADDR_OCM0_MAX))
1641                return netxen_nic_pci_mem_access_direct(adapter, off, &data, 1);
1642
1643        return -EIO;
1644
1645correct:
1646        off8 = off & 0xfffffff8;
1647
1648        spin_lock(&adapter->ahw.mem_lock);
1649
1650        writel(off8, (mem_crb + MIU_TEST_AGT_ADDR_LO));
1651        writel(0, (mem_crb + MIU_TEST_AGT_ADDR_HI));
1652
1653        writel(data & 0xffffffff,
1654                        mem_crb + MIU_TEST_AGT_WRDATA_LO);
1655        writel((data >> 32) & 0xffffffff,
1656                        mem_crb + MIU_TEST_AGT_WRDATA_HI);
1657
1658        writel((TA_CTL_ENABLE | TA_CTL_WRITE), (mem_crb + TEST_AGT_CTRL));
1659        writel((TA_CTL_START | TA_CTL_ENABLE | TA_CTL_WRITE),
1660                        (mem_crb + TEST_AGT_CTRL));
1661
1662        for (j = 0; j < MAX_CTL_CHECK; j++) {
1663                temp = readl(mem_crb + TEST_AGT_CTRL);
1664                if ((temp & TA_CTL_BUSY) == 0)
1665                        break;
1666        }
1667
1668        if (j >= MAX_CTL_CHECK) {
1669                if (printk_ratelimit())
1670                        dev_err(&adapter->pdev->dev,
1671                                        "failed to write through agent\n");
1672                ret = -EIO;
1673        } else
1674                ret = 0;
1675
1676        spin_unlock(&adapter->ahw.mem_lock);
1677
1678        return ret;
1679}
1680
1681static int
1682netxen_nic_pci_mem_read_2M(struct netxen_adapter *adapter,
1683                u64 off, u64 *data)
1684{
1685        int j, ret;
1686        u32 temp, off8;
1687        u64 val;
1688        void __iomem *mem_crb;
1689
1690        /* Only 64-bit aligned access */
1691        if (off & 7)
1692                return -EIO;
1693
1694        /* P3 onward, test agent base for MIU and SIU is same */
1695        if (ADDR_IN_RANGE(off, NETXEN_ADDR_QDR_NET,
1696                                NETXEN_ADDR_QDR_NET_MAX_P3)) {
1697                mem_crb = netxen_get_ioaddr(adapter,
1698                                NETXEN_CRB_QDR_NET+MIU_TEST_AGT_BASE);
1699                goto correct;
1700        }
1701
1702        if (ADDR_IN_RANGE(off, NETXEN_ADDR_DDR_NET, NETXEN_ADDR_DDR_NET_MAX)) {
1703                mem_crb = netxen_get_ioaddr(adapter,
1704                                NETXEN_CRB_DDR_NET+MIU_TEST_AGT_BASE);
1705                goto correct;
1706        }
1707
1708        if (ADDR_IN_RANGE(off, NETXEN_ADDR_OCM0, NETXEN_ADDR_OCM0_MAX)) {
1709                return netxen_nic_pci_mem_access_direct(adapter,
1710                                off, data, 0);
1711        }
1712
1713        return -EIO;
1714
1715correct:
1716        off8 = off & 0xfffffff8;
1717
1718        spin_lock(&adapter->ahw.mem_lock);
1719
1720        writel(off8, (mem_crb + MIU_TEST_AGT_ADDR_LO));
1721        writel(0, (mem_crb + MIU_TEST_AGT_ADDR_HI));
1722        writel(TA_CTL_ENABLE, (mem_crb + TEST_AGT_CTRL));
1723        writel((TA_CTL_START | TA_CTL_ENABLE), (mem_crb + TEST_AGT_CTRL));
1724
1725        for (j = 0; j < MAX_CTL_CHECK; j++) {
1726                temp = readl(mem_crb + TEST_AGT_CTRL);
1727                if ((temp & TA_CTL_BUSY) == 0)
1728                        break;
1729        }
1730
1731        if (j >= MAX_CTL_CHECK) {
1732                if (printk_ratelimit())
1733                        dev_err(&adapter->pdev->dev,
1734                                        "failed to read through agent\n");
1735                ret = -EIO;
1736        } else {
1737                val = (u64)(readl(mem_crb + MIU_TEST_AGT_RDDATA_HI)) << 32;
1738                val |= readl(mem_crb + MIU_TEST_AGT_RDDATA_LO);
1739                *data = val;
1740                ret = 0;
1741        }
1742
1743        spin_unlock(&adapter->ahw.mem_lock);
1744
1745        return ret;
1746}
1747
1748void
1749netxen_setup_hwops(struct netxen_adapter *adapter)
1750{
1751        adapter->init_port = netxen_niu_xg_init_port;
1752        adapter->stop_port = netxen_niu_disable_xg_port;
1753
1754        if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1755                adapter->crb_read = netxen_nic_hw_read_wx_128M,
1756                adapter->crb_write = netxen_nic_hw_write_wx_128M,
1757                adapter->pci_set_window = netxen_nic_pci_set_window_128M,
1758                adapter->pci_mem_read = netxen_nic_pci_mem_read_128M,
1759                adapter->pci_mem_write = netxen_nic_pci_mem_write_128M,
1760                adapter->io_read = netxen_nic_io_read_128M,
1761                adapter->io_write = netxen_nic_io_write_128M,
1762
1763                adapter->macaddr_set = netxen_p2_nic_set_mac_addr;
1764                adapter->set_multi = netxen_p2_nic_set_multi;
1765                adapter->set_mtu = netxen_nic_set_mtu_xgb;
1766                adapter->set_promisc = netxen_p2_nic_set_promisc;
1767
1768        } else {
1769                adapter->crb_read = netxen_nic_hw_read_wx_2M,
1770                adapter->crb_write = netxen_nic_hw_write_wx_2M,
1771                adapter->pci_set_window = netxen_nic_pci_set_window_2M,
1772                adapter->pci_mem_read = netxen_nic_pci_mem_read_2M,
1773                adapter->pci_mem_write = netxen_nic_pci_mem_write_2M,
1774                adapter->io_read = netxen_nic_io_read_2M,
1775                adapter->io_write = netxen_nic_io_write_2M,
1776
1777                adapter->set_mtu = nx_fw_cmd_set_mtu;
1778                adapter->set_promisc = netxen_p3_nic_set_promisc;
1779                adapter->macaddr_set = netxen_p3_nic_set_mac_addr;
1780                adapter->set_multi = netxen_p3_nic_set_multi;
1781
1782                adapter->phy_read = nx_fw_cmd_query_phy;
1783                adapter->phy_write = nx_fw_cmd_set_phy;
1784        }
1785}
1786
1787int netxen_nic_get_board_info(struct netxen_adapter *adapter)
1788{
1789        int offset, board_type, magic;
1790        struct pci_dev *pdev = adapter->pdev;
1791
1792        offset = NX_FW_MAGIC_OFFSET;
1793        if (netxen_rom_fast_read(adapter, offset, &magic))
1794                return -EIO;
1795
1796        if (magic != NETXEN_BDINFO_MAGIC) {
1797                dev_err(&pdev->dev, "invalid board config, magic=%08x\n",
1798                        magic);
1799                return -EIO;
1800        }
1801
1802        offset = NX_BRDTYPE_OFFSET;
1803        if (netxen_rom_fast_read(adapter, offset, &board_type))
1804                return -EIO;
1805
1806        if (board_type == NETXEN_BRDTYPE_P3_4_GB_MM) {
1807                u32 gpio = NXRD32(adapter, NETXEN_ROMUSB_GLB_PAD_GPIO_I);
1808                if ((gpio & 0x8000) == 0)
1809                        board_type = NETXEN_BRDTYPE_P3_10G_TP;
1810        }
1811
1812        adapter->ahw.board_type = board_type;
1813
1814        switch (board_type) {
1815        case NETXEN_BRDTYPE_P2_SB35_4G:
1816                adapter->ahw.port_type = NETXEN_NIC_GBE;
1817                break;
1818        case NETXEN_BRDTYPE_P2_SB31_10G:
1819        case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
1820        case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
1821        case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
1822        case NETXEN_BRDTYPE_P3_HMEZ:
1823        case NETXEN_BRDTYPE_P3_XG_LOM:
1824        case NETXEN_BRDTYPE_P3_10G_CX4:
1825        case NETXEN_BRDTYPE_P3_10G_CX4_LP:
1826        case NETXEN_BRDTYPE_P3_IMEZ:
1827        case NETXEN_BRDTYPE_P3_10G_SFP_PLUS:
1828        case NETXEN_BRDTYPE_P3_10G_SFP_CT:
1829        case NETXEN_BRDTYPE_P3_10G_SFP_QT:
1830        case NETXEN_BRDTYPE_P3_10G_XFP:
1831        case NETXEN_BRDTYPE_P3_10000_BASE_T:
1832                adapter->ahw.port_type = NETXEN_NIC_XGBE;
1833                break;
1834        case NETXEN_BRDTYPE_P1_BD:
1835        case NETXEN_BRDTYPE_P1_SB:
1836        case NETXEN_BRDTYPE_P1_SMAX:
1837        case NETXEN_BRDTYPE_P1_SOCK:
1838        case NETXEN_BRDTYPE_P3_REF_QG:
1839        case NETXEN_BRDTYPE_P3_4_GB:
1840        case NETXEN_BRDTYPE_P3_4_GB_MM:
1841                adapter->ahw.port_type = NETXEN_NIC_GBE;
1842                break;
1843        case NETXEN_BRDTYPE_P3_10G_TP:
1844                adapter->ahw.port_type = (adapter->portnum < 2) ?
1845                        NETXEN_NIC_XGBE : NETXEN_NIC_GBE;
1846                break;
1847        default:
1848                dev_err(&pdev->dev, "unknown board type %x\n", board_type);
1849                adapter->ahw.port_type = NETXEN_NIC_XGBE;
1850                break;
1851        }
1852
1853        return 0;
1854}
1855
1856/* NIU access sections */
1857static int netxen_nic_set_mtu_xgb(struct netxen_adapter *adapter, int new_mtu)
1858{
1859        new_mtu += MTU_FUDGE_FACTOR;
1860        if (adapter->physical_port == 0)
1861                NXWR32(adapter, NETXEN_NIU_XGE_MAX_FRAME_SIZE, new_mtu);
1862        else
1863                NXWR32(adapter, NETXEN_NIU_XG1_MAX_FRAME_SIZE, new_mtu);
1864        return 0;
1865}
1866
1867void netxen_nic_set_link_parameters(struct netxen_adapter *adapter)
1868{
1869        __u32 status;
1870        __u32 autoneg;
1871        __u32 port_mode;
1872
1873        if (!netif_carrier_ok(adapter->netdev)) {
1874                adapter->link_speed   = 0;
1875                adapter->link_duplex  = -1;
1876                adapter->link_autoneg = AUTONEG_ENABLE;
1877                return;
1878        }
1879
1880        if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
1881                port_mode = NXRD32(adapter, NETXEN_PORT_MODE_ADDR);
1882                if (port_mode == NETXEN_PORT_MODE_802_3_AP) {
1883                        adapter->link_speed   = SPEED_1000;
1884                        adapter->link_duplex  = DUPLEX_FULL;
1885                        adapter->link_autoneg = AUTONEG_DISABLE;
1886                        return;
1887                }
1888
1889                if (adapter->phy_read &&
1890                    adapter->phy_read(adapter,
1891                                      NETXEN_NIU_GB_MII_MGMT_ADDR_PHY_STATUS,
1892                                      &status) == 0) {
1893                        if (netxen_get_phy_link(status)) {
1894                                switch (netxen_get_phy_speed(status)) {
1895                                case 0:
1896                                        adapter->link_speed = SPEED_10;
1897                                        break;
1898                                case 1:
1899                                        adapter->link_speed = SPEED_100;
1900                                        break;
1901                                case 2:
1902                                        adapter->link_speed = SPEED_1000;
1903                                        break;
1904                                default:
1905                                        adapter->link_speed = 0;
1906                                        break;
1907                                }
1908                                switch (netxen_get_phy_duplex(status)) {
1909                                case 0:
1910                                        adapter->link_duplex = DUPLEX_HALF;
1911                                        break;
1912                                case 1:
1913                                        adapter->link_duplex = DUPLEX_FULL;
1914                                        break;
1915                                default:
1916                                        adapter->link_duplex = -1;
1917                                        break;
1918                                }
1919                                if (adapter->phy_read &&
1920                                    adapter->phy_read(adapter,
1921                                                      NETXEN_NIU_GB_MII_MGMT_ADDR_AUTONEG,
1922                                                      &autoneg) == 0)
1923                                        adapter->link_autoneg = autoneg;
1924                        } else
1925                                goto link_down;
1926                } else {
1927                      link_down:
1928                        adapter->link_speed = 0;
1929                        adapter->link_duplex = -1;
1930                }
1931        }
1932}
1933
1934int
1935netxen_nic_wol_supported(struct netxen_adapter *adapter)
1936{
1937        u32 wol_cfg;
1938
1939        if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
1940                return 0;
1941
1942        wol_cfg = NXRD32(adapter, NETXEN_WOL_CONFIG_NV);
1943        if (wol_cfg & (1UL << adapter->portnum)) {
1944                wol_cfg = NXRD32(adapter, NETXEN_WOL_CONFIG);
1945                if (wol_cfg & (1 << adapter->portnum))
1946                        return 1;
1947        }
1948
1949        return 0;
1950}
1951
1952static u32 netxen_md_cntrl(struct netxen_adapter *adapter,
1953                        struct netxen_minidump_template_hdr *template_hdr,
1954                        struct netxen_minidump_entry_crb *crtEntry)
1955{
1956        int loop_cnt, i, rv = 0, timeout_flag;
1957        u32 op_count, stride;
1958        u32 opcode, read_value, addr;
1959        unsigned long timeout, timeout_jiffies;
1960        addr = crtEntry->addr;
1961        op_count = crtEntry->op_count;
1962        stride = crtEntry->addr_stride;
1963
1964        for (loop_cnt = 0; loop_cnt < op_count; loop_cnt++) {
1965                for (i = 0; i < sizeof(crtEntry->opcode) * 8; i++) {
1966                        opcode = (crtEntry->opcode & (0x1 << i));
1967                        if (opcode) {
1968                                switch (opcode) {
1969                                case NX_DUMP_WCRB:
1970                                        NX_WR_DUMP_REG(addr,
1971                                                adapter->ahw.pci_base0,
1972                                                        crtEntry->value_1);
1973                                        break;
1974                                case NX_DUMP_RWCRB:
1975                                        NX_RD_DUMP_REG(addr,
1976                                                adapter->ahw.pci_base0,
1977                                                                &read_value);
1978                                        NX_WR_DUMP_REG(addr,
1979                                                adapter->ahw.pci_base0,
1980                                                                read_value);
1981                                        break;
1982                                case NX_DUMP_ANDCRB:
1983                                        NX_RD_DUMP_REG(addr,
1984                                                adapter->ahw.pci_base0,
1985                                                                &read_value);
1986                                        read_value &= crtEntry->value_2;
1987                                        NX_WR_DUMP_REG(addr,
1988                                                adapter->ahw.pci_base0,
1989                                                                read_value);
1990                                        break;
1991                                case NX_DUMP_ORCRB:
1992                                        NX_RD_DUMP_REG(addr,
1993                                                adapter->ahw.pci_base0,
1994                                                                &read_value);
1995                                        read_value |= crtEntry->value_3;
1996                                        NX_WR_DUMP_REG(addr,
1997                                                adapter->ahw.pci_base0,
1998                                                                read_value);
1999                                        break;
2000                                case NX_DUMP_POLLCRB:
2001                                        timeout = crtEntry->poll_timeout;
2002                                        NX_RD_DUMP_REG(addr,
2003                                                adapter->ahw.pci_base0,
2004                                                                &read_value);
2005                                        timeout_jiffies =
2006                                        msecs_to_jiffies(timeout) + jiffies;
2007                                        for (timeout_flag = 0;
2008                                                !timeout_flag
2009                                        && ((read_value & crtEntry->value_2)
2010                                        != crtEntry->value_1);) {
2011                                                if (time_after(jiffies,
2012                                                        timeout_jiffies))
2013                                                        timeout_flag = 1;
2014                                        NX_RD_DUMP_REG(addr,
2015                                                        adapter->ahw.pci_base0,
2016                                                                &read_value);
2017                                        }
2018
2019                                        if (timeout_flag) {
2020                                                dev_err(&adapter->pdev->dev, "%s : "
2021                                                        "Timeout in poll_crb control operation.\n"
2022                                                                , __func__);
2023                                                return -1;
2024                                        }
2025                                        break;
2026                                case NX_DUMP_RD_SAVE:
2027                                        /* Decide which address to use */
2028                                        if (crtEntry->state_index_a)
2029                                                addr =
2030                                                template_hdr->saved_state_array
2031                                                [crtEntry->state_index_a];
2032                                        NX_RD_DUMP_REG(addr,
2033                                                adapter->ahw.pci_base0,
2034                                                                &read_value);
2035                                        template_hdr->saved_state_array
2036                                        [crtEntry->state_index_v]
2037                                                = read_value;
2038                                        break;
2039                                case NX_DUMP_WRT_SAVED:
2040                                        /* Decide which value to use */
2041                                        if (crtEntry->state_index_v)
2042                                                read_value =
2043                                                template_hdr->saved_state_array
2044                                                [crtEntry->state_index_v];
2045                                        else
2046                                                read_value = crtEntry->value_1;
2047
2048                                        /* Decide which address to use */
2049                                        if (crtEntry->state_index_a)
2050                                                addr =
2051                                                template_hdr->saved_state_array
2052                                                [crtEntry->state_index_a];
2053
2054                                        NX_WR_DUMP_REG(addr,
2055                                                adapter->ahw.pci_base0,
2056                                                                read_value);
2057                                        break;
2058                                case NX_DUMP_MOD_SAVE_ST:
2059                                        read_value =
2060                                        template_hdr->saved_state_array
2061                                                [crtEntry->state_index_v];
2062                                        read_value <<= crtEntry->shl;
2063                                        read_value >>= crtEntry->shr;
2064                                        if (crtEntry->value_2)
2065                                                read_value &=
2066                                                crtEntry->value_2;
2067                                        read_value |= crtEntry->value_3;
2068                                        read_value += crtEntry->value_1;
2069                                        /* Write value back to state area.*/
2070                                        template_hdr->saved_state_array
2071                                                [crtEntry->state_index_v]
2072                                                        = read_value;
2073                                        break;
2074                                default:
2075                                        rv = 1;
2076                                        break;
2077                                }
2078                        }
2079                }
2080                addr = addr + stride;
2081        }
2082        return rv;
2083}
2084
2085/* Read memory or MN */
2086static u32
2087netxen_md_rdmem(struct netxen_adapter *adapter,
2088                struct netxen_minidump_entry_rdmem
2089                        *memEntry, u64 *data_buff)
2090{
2091        u64 addr, value = 0;
2092        int i = 0, loop_cnt;
2093
2094        addr = (u64)memEntry->read_addr;
2095        loop_cnt = memEntry->read_data_size;    /* This is size in bytes */
2096        loop_cnt /= sizeof(value);
2097
2098        for (i = 0; i < loop_cnt; i++) {
2099                if (netxen_nic_pci_mem_read_2M(adapter, addr, &value))
2100                        goto out;
2101                *data_buff++ = value;
2102                addr += sizeof(value);
2103        }
2104out:
2105        return i * sizeof(value);
2106}
2107
2108/* Read CRB operation */
2109static u32 netxen_md_rd_crb(struct netxen_adapter *adapter,
2110                        struct netxen_minidump_entry_crb
2111                                *crbEntry, u32 *data_buff)
2112{
2113        int loop_cnt;
2114        u32 op_count, addr, stride, value;
2115
2116        addr = crbEntry->addr;
2117        op_count = crbEntry->op_count;
2118        stride = crbEntry->addr_stride;
2119
2120        for (loop_cnt = 0; loop_cnt < op_count; loop_cnt++) {
2121                NX_RD_DUMP_REG(addr, adapter->ahw.pci_base0, &value);
2122                *data_buff++ = addr;
2123                *data_buff++ = value;
2124                addr = addr + stride;
2125        }
2126        return loop_cnt * (2 * sizeof(u32));
2127}
2128
2129/* Read ROM */
2130static u32
2131netxen_md_rdrom(struct netxen_adapter *adapter,
2132                        struct netxen_minidump_entry_rdrom
2133                                *romEntry, __le32 *data_buff)
2134{
2135        int i, count = 0;
2136        u32 size, lck_val;
2137        u32 val;
2138        u32 fl_addr, waddr, raddr;
2139        fl_addr = romEntry->read_addr;
2140        size = romEntry->read_data_size/4;
2141lock_try:
2142        lck_val = readl((void __iomem *)(adapter->ahw.pci_base0 +
2143                                                        NX_FLASH_SEM2_LK));
2144        if (!lck_val && count < MAX_CTL_CHECK) {
2145                msleep(20);
2146                count++;
2147                goto lock_try;
2148        }
2149        writel(adapter->ahw.pci_func, (void __iomem *)(adapter->ahw.pci_base0 +
2150                                                        NX_FLASH_LOCK_ID));
2151        for (i = 0; i < size; i++) {
2152                waddr = fl_addr & 0xFFFF0000;
2153                NX_WR_DUMP_REG(FLASH_ROM_WINDOW, adapter->ahw.pci_base0, waddr);
2154                raddr = FLASH_ROM_DATA + (fl_addr & 0x0000FFFF);
2155                NX_RD_DUMP_REG(raddr, adapter->ahw.pci_base0, &val);
2156                *data_buff++ = cpu_to_le32(val);
2157                fl_addr += sizeof(val);
2158        }
2159        readl((void __iomem *)(adapter->ahw.pci_base0 + NX_FLASH_SEM2_ULK));
2160        return romEntry->read_data_size;
2161}
2162
2163/* Handle L2 Cache */
2164static u32
2165netxen_md_L2Cache(struct netxen_adapter *adapter,
2166                                struct netxen_minidump_entry_cache
2167                                        *cacheEntry, u32 *data_buff)
2168{
2169        int loop_cnt, i, k, timeout_flag = 0;
2170        u32 addr, read_addr, read_value, cntrl_addr, tag_reg_addr;
2171        u32 tag_value, read_cnt;
2172        u8 cntl_value_w, cntl_value_r;
2173        unsigned long timeout, timeout_jiffies;
2174
2175        loop_cnt = cacheEntry->op_count;
2176        read_addr = cacheEntry->read_addr;
2177        cntrl_addr = cacheEntry->control_addr;
2178        cntl_value_w = (u32) cacheEntry->write_value;
2179        tag_reg_addr = cacheEntry->tag_reg_addr;
2180        tag_value = cacheEntry->init_tag_value;
2181        read_cnt = cacheEntry->read_addr_cnt;
2182
2183        for (i = 0; i < loop_cnt; i++) {
2184                NX_WR_DUMP_REG(tag_reg_addr, adapter->ahw.pci_base0, tag_value);
2185                if (cntl_value_w)
2186                        NX_WR_DUMP_REG(cntrl_addr, adapter->ahw.pci_base0,
2187                                        (u32)cntl_value_w);
2188                if (cacheEntry->poll_mask) {
2189                        timeout = cacheEntry->poll_wait;
2190                        NX_RD_DUMP_REG(cntrl_addr, adapter->ahw.pci_base0,
2191                                                        &cntl_value_r);
2192                        timeout_jiffies = msecs_to_jiffies(timeout) + jiffies;
2193                        for (timeout_flag = 0; !timeout_flag &&
2194                        ((cntl_value_r & cacheEntry->poll_mask) != 0);) {
2195                                if (time_after(jiffies, timeout_jiffies))
2196                                        timeout_flag = 1;
2197                                NX_RD_DUMP_REG(cntrl_addr,
2198                                        adapter->ahw.pci_base0,
2199                                                        &cntl_value_r);
2200                        }
2201                        if (timeout_flag) {
2202                                dev_err(&adapter->pdev->dev,
2203                                                "Timeout in processing L2 Tag poll.\n");
2204                                return -1;
2205                        }
2206                }
2207                addr = read_addr;
2208                for (k = 0; k < read_cnt; k++) {
2209                        NX_RD_DUMP_REG(addr, adapter->ahw.pci_base0,
2210                                        &read_value);
2211                        *data_buff++ = read_value;
2212                        addr += cacheEntry->read_addr_stride;
2213                }
2214                tag_value += cacheEntry->tag_value_stride;
2215        }
2216        return read_cnt * loop_cnt * sizeof(read_value);
2217}
2218
2219
2220/* Handle L1 Cache */
2221static u32 netxen_md_L1Cache(struct netxen_adapter *adapter,
2222                                struct netxen_minidump_entry_cache
2223                                        *cacheEntry, u32 *data_buff)
2224{
2225        int i, k, loop_cnt;
2226        u32 addr, read_addr, read_value, cntrl_addr, tag_reg_addr;
2227        u32 tag_value, read_cnt;
2228        u8 cntl_value_w;
2229
2230        loop_cnt = cacheEntry->op_count;
2231        read_addr = cacheEntry->read_addr;
2232        cntrl_addr = cacheEntry->control_addr;
2233        cntl_value_w = (u32) cacheEntry->write_value;
2234        tag_reg_addr = cacheEntry->tag_reg_addr;
2235        tag_value = cacheEntry->init_tag_value;
2236        read_cnt = cacheEntry->read_addr_cnt;
2237
2238        for (i = 0; i < loop_cnt; i++) {
2239                NX_WR_DUMP_REG(tag_reg_addr, adapter->ahw.pci_base0, tag_value);
2240                NX_WR_DUMP_REG(cntrl_addr, adapter->ahw.pci_base0,
2241                                                (u32) cntl_value_w);
2242                addr = read_addr;
2243                for (k = 0; k < read_cnt; k++) {
2244                        NX_RD_DUMP_REG(addr,
2245                                adapter->ahw.pci_base0,
2246                                                &read_value);
2247                        *data_buff++ = read_value;
2248                        addr += cacheEntry->read_addr_stride;
2249                }
2250                tag_value += cacheEntry->tag_value_stride;
2251        }
2252        return read_cnt * loop_cnt * sizeof(read_value);
2253}
2254
2255/* Reading OCM memory */
2256static u32
2257netxen_md_rdocm(struct netxen_adapter *adapter,
2258                                struct netxen_minidump_entry_rdocm
2259                                        *ocmEntry, u32 *data_buff)
2260{
2261        int i, loop_cnt;
2262        u32 value;
2263        void __iomem *addr;
2264        addr = (ocmEntry->read_addr + adapter->ahw.pci_base0);
2265        loop_cnt = ocmEntry->op_count;
2266
2267        for (i = 0; i < loop_cnt; i++) {
2268                value = readl(addr);
2269                *data_buff++ = value;
2270                addr += ocmEntry->read_addr_stride;
2271        }
2272        return i * sizeof(u32);
2273}
2274
2275/* Read MUX data */
2276static u32
2277netxen_md_rdmux(struct netxen_adapter *adapter, struct netxen_minidump_entry_mux
2278                                        *muxEntry, u32 *data_buff)
2279{
2280        int loop_cnt = 0;
2281        u32 read_addr, read_value, select_addr, sel_value;
2282
2283        read_addr = muxEntry->read_addr;
2284        sel_value = muxEntry->select_value;
2285        select_addr = muxEntry->select_addr;
2286
2287        for (loop_cnt = 0; loop_cnt < muxEntry->op_count; loop_cnt++) {
2288                NX_WR_DUMP_REG(select_addr, adapter->ahw.pci_base0, sel_value);
2289                NX_RD_DUMP_REG(read_addr, adapter->ahw.pci_base0, &read_value);
2290                *data_buff++ = sel_value;
2291                *data_buff++ = read_value;
2292                sel_value += muxEntry->select_value_stride;
2293        }
2294        return loop_cnt * (2 * sizeof(u32));
2295}
2296
2297/* Handling Queue State Reads */
2298static u32
2299netxen_md_rdqueue(struct netxen_adapter *adapter,
2300                                struct netxen_minidump_entry_queue
2301                                        *queueEntry, u32 *data_buff)
2302{
2303        int loop_cnt, k;
2304        u32 queue_id, read_addr, read_value, read_stride, select_addr, read_cnt;
2305
2306        read_cnt = queueEntry->read_addr_cnt;
2307        read_stride = queueEntry->read_addr_stride;
2308        select_addr = queueEntry->select_addr;
2309
2310        for (loop_cnt = 0, queue_id = 0; loop_cnt < queueEntry->op_count;
2311                                 loop_cnt++) {
2312                NX_WR_DUMP_REG(select_addr, adapter->ahw.pci_base0, queue_id);
2313                read_addr = queueEntry->read_addr;
2314                for (k = 0; k < read_cnt; k++) {
2315                        NX_RD_DUMP_REG(read_addr, adapter->ahw.pci_base0,
2316                                                        &read_value);
2317                        *data_buff++ = read_value;
2318                        read_addr += read_stride;
2319                }
2320                queue_id += queueEntry->queue_id_stride;
2321        }
2322        return loop_cnt * (read_cnt * sizeof(read_value));
2323}
2324
2325
2326/*
2327* We catch an error where driver does not read
2328* as much data as we expect from the entry.
2329*/
2330
2331static int netxen_md_entry_err_chk(struct netxen_adapter *adapter,
2332                                struct netxen_minidump_entry *entry, int esize)
2333{
2334        if (esize < 0) {
2335                entry->hdr.driver_flags |= NX_DUMP_SKIP;
2336                return esize;
2337        }
2338        if (esize != entry->hdr.entry_capture_size) {
2339                entry->hdr.entry_capture_size = esize;
2340                entry->hdr.driver_flags |= NX_DUMP_SIZE_ERR;
2341                dev_info(&adapter->pdev->dev,
2342                        "Invalidate dump, Type:%d\tMask:%d\tSize:%dCap_size:%d\n",
2343                        entry->hdr.entry_type, entry->hdr.entry_capture_mask,
2344                        esize, entry->hdr.entry_capture_size);
2345                dev_info(&adapter->pdev->dev, "Aborting further dump capture\n");
2346        }
2347        return 0;
2348}
2349
2350static int netxen_parse_md_template(struct netxen_adapter *adapter)
2351{
2352        int num_of_entries, buff_level, e_cnt, esize;
2353        int end_cnt = 0, rv = 0, sane_start = 0, sane_end = 0;
2354        char *dbuff;
2355        void *template_buff = adapter->mdump.md_template;
2356        char *dump_buff = adapter->mdump.md_capture_buff;
2357        int capture_mask = adapter->mdump.md_capture_mask;
2358        struct netxen_minidump_template_hdr *template_hdr;
2359        struct netxen_minidump_entry *entry;
2360
2361        if ((capture_mask & 0x3) != 0x3) {
2362                dev_err(&adapter->pdev->dev, "Capture mask %02x below minimum needed "
2363                        "for valid firmware dump\n", capture_mask);
2364                return -EINVAL;
2365        }
2366        template_hdr = (struct netxen_minidump_template_hdr *) template_buff;
2367        num_of_entries = template_hdr->num_of_entries;
2368        entry = (struct netxen_minidump_entry *) ((char *) template_buff +
2369                                template_hdr->first_entry_offset);
2370        memcpy(dump_buff, template_buff, adapter->mdump.md_template_size);
2371        dump_buff = dump_buff + adapter->mdump.md_template_size;
2372
2373        if (template_hdr->entry_type == TLHDR)
2374                sane_start = 1;
2375
2376        for (e_cnt = 0, buff_level = 0; e_cnt < num_of_entries; e_cnt++) {
2377                if (!(entry->hdr.entry_capture_mask & capture_mask)) {
2378                        entry->hdr.driver_flags |= NX_DUMP_SKIP;
2379                        entry = (struct netxen_minidump_entry *)
2380                                ((char *) entry + entry->hdr.entry_size);
2381                        continue;
2382                }
2383                switch (entry->hdr.entry_type) {
2384                case RDNOP:
2385                        entry->hdr.driver_flags |= NX_DUMP_SKIP;
2386                        break;
2387                case RDEND:
2388                        entry->hdr.driver_flags |= NX_DUMP_SKIP;
2389                        if (!sane_end)
2390                                end_cnt = e_cnt;
2391                        sane_end += 1;
2392                        break;
2393                case CNTRL:
2394                        rv = netxen_md_cntrl(adapter,
2395                                template_hdr, (void *)entry);
2396                        if (rv)
2397                                entry->hdr.driver_flags |= NX_DUMP_SKIP;
2398                        break;
2399                case RDCRB:
2400                        dbuff = dump_buff + buff_level;
2401                        esize = netxen_md_rd_crb(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 RDMN:
2410                case RDMEM:
2411                        dbuff = dump_buff + buff_level;
2412                        esize = netxen_md_rdmem(adapter,
2413                                (void *) entry, (void *) dbuff);
2414                        rv = netxen_md_entry_err_chk
2415                                (adapter, entry, esize);
2416                        if (rv < 0)
2417                                break;
2418                        buff_level += esize;
2419                        break;
2420                case BOARD:
2421                case RDROM:
2422                        dbuff = dump_buff + buff_level;
2423                        esize = netxen_md_rdrom(adapter,
2424                                (void *) entry, (void *) dbuff);
2425                        rv = netxen_md_entry_err_chk
2426                                (adapter, entry, esize);
2427                        if (rv < 0)
2428                                break;
2429                        buff_level += esize;
2430                        break;
2431                case L2ITG:
2432                case L2DTG:
2433                case L2DAT:
2434                case L2INS:
2435                        dbuff = dump_buff + buff_level;
2436                        esize = netxen_md_L2Cache(adapter,
2437                                (void *) entry, (void *) dbuff);
2438                        rv = netxen_md_entry_err_chk
2439                                (adapter, entry, esize);
2440                        if (rv < 0)
2441                                break;
2442                        buff_level += esize;
2443                        break;
2444                case L1DAT:
2445                case L1INS:
2446                        dbuff = dump_buff + buff_level;
2447                        esize = netxen_md_L1Cache(adapter,
2448                                (void *) entry, (void *) dbuff);
2449                        rv = netxen_md_entry_err_chk
2450                                (adapter, entry, esize);
2451                        if (rv < 0)
2452                                break;
2453                        buff_level += esize;
2454                        break;
2455                case RDOCM:
2456                        dbuff = dump_buff + buff_level;
2457                        esize = netxen_md_rdocm(adapter,
2458                                (void *) entry, (void *) dbuff);
2459                        rv = netxen_md_entry_err_chk
2460                                (adapter, entry, esize);
2461                        if (rv < 0)
2462                                break;
2463                        buff_level += esize;
2464                        break;
2465                case RDMUX:
2466                        dbuff = dump_buff + buff_level;
2467                        esize = netxen_md_rdmux(adapter,
2468                                (void *) entry, (void *) dbuff);
2469                        rv = netxen_md_entry_err_chk
2470                                (adapter, entry, esize);
2471                        if (rv < 0)
2472                                break;
2473                        buff_level += esize;
2474                        break;
2475                case QUEUE:
2476                        dbuff = dump_buff + buff_level;
2477                        esize = netxen_md_rdqueue(adapter,
2478                                (void *) entry, (void *) dbuff);
2479                        rv = netxen_md_entry_err_chk
2480                                (adapter, entry, esize);
2481                        if (rv  < 0)
2482                                break;
2483                        buff_level += esize;
2484                        break;
2485                default:
2486                        entry->hdr.driver_flags |= NX_DUMP_SKIP;
2487                        break;
2488                }
2489                /* Next entry in the template */
2490                entry = (struct netxen_minidump_entry *)
2491                        ((char *) entry + entry->hdr.entry_size);
2492        }
2493        if (!sane_start || sane_end > 1) {
2494                dev_err(&adapter->pdev->dev,
2495                                "Firmware minidump template configuration error.\n");
2496        }
2497        return 0;
2498}
2499
2500static int
2501netxen_collect_minidump(struct netxen_adapter *adapter)
2502{
2503        int ret = 0;
2504        struct netxen_minidump_template_hdr *hdr;
2505        hdr = (struct netxen_minidump_template_hdr *)
2506                                adapter->mdump.md_template;
2507        hdr->driver_capture_mask = adapter->mdump.md_capture_mask;
2508        hdr->driver_timestamp = ktime_get_seconds();
2509        hdr->driver_info_word2 = adapter->fw_version;
2510        hdr->driver_info_word3 = NXRD32(adapter, CRB_DRIVER_VERSION);
2511        ret = netxen_parse_md_template(adapter);
2512        if (ret)
2513                return ret;
2514
2515        return ret;
2516}
2517
2518
2519void
2520netxen_dump_fw(struct netxen_adapter *adapter)
2521{
2522        struct netxen_minidump_template_hdr *hdr;
2523        int i, k, data_size = 0;
2524        u32 capture_mask;
2525        hdr = (struct netxen_minidump_template_hdr *)
2526                                adapter->mdump.md_template;
2527        capture_mask = adapter->mdump.md_capture_mask;
2528
2529        for (i = 0x2, k = 1; (i & NX_DUMP_MASK_MAX); i <<= 1, k++) {
2530                if (i & capture_mask)
2531                        data_size += hdr->capture_size_array[k];
2532        }
2533        if (!data_size) {
2534                dev_err(&adapter->pdev->dev,
2535                                "Invalid cap sizes for capture_mask=0x%x\n",
2536                        adapter->mdump.md_capture_mask);
2537                return;
2538        }
2539        adapter->mdump.md_capture_size = data_size;
2540        adapter->mdump.md_dump_size = adapter->mdump.md_template_size +
2541                                        adapter->mdump.md_capture_size;
2542        if (!adapter->mdump.md_capture_buff) {
2543                adapter->mdump.md_capture_buff =
2544                                vzalloc(adapter->mdump.md_dump_size);
2545                if (!adapter->mdump.md_capture_buff)
2546                        return;
2547
2548                if (netxen_collect_minidump(adapter)) {
2549                        adapter->mdump.has_valid_dump = 0;
2550                        adapter->mdump.md_dump_size = 0;
2551                        vfree(adapter->mdump.md_capture_buff);
2552                        adapter->mdump.md_capture_buff = NULL;
2553                        dev_err(&adapter->pdev->dev,
2554                                "Error in collecting firmware minidump.\n");
2555                } else {
2556                        adapter->mdump.md_timestamp = jiffies;
2557                        adapter->mdump.has_valid_dump = 1;
2558                        adapter->fw_mdump_rdy = 1;
2559                        dev_info(&adapter->pdev->dev, "%s Successfully "
2560                                "collected fw dump.\n", adapter->netdev->name);
2561                }
2562
2563        } else {
2564                dev_info(&adapter->pdev->dev,
2565                                        "Cannot overwrite previously collected "
2566                                                        "firmware minidump.\n");
2567                adapter->fw_mdump_rdy = 1;
2568                return;
2569        }
2570}
2571