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/slab.h>
  25#include "netxen_nic.h"
  26#include "netxen_nic_hw.h"
  27
  28#include <net/ip.h>
  29
  30#define MASK(n) ((1ULL<<(n))-1)
  31#define MN_WIN(addr) (((addr & 0x1fc0000) >> 1) | ((addr >> 25) & 0x3ff))
  32#define OCM_WIN(addr) (((addr & 0x1ff0000) >> 1) | ((addr >> 25) & 0x3ff))
  33#define MS_WIN(addr) (addr & 0x0ffc0000)
  34
  35#define GET_MEM_OFFS_2M(addr) (addr & MASK(18))
  36
  37#define CRB_BLK(off)    ((off >> 20) & 0x3f)
  38#define CRB_SUBBLK(off) ((off >> 16) & 0xf)
  39#define CRB_WINDOW_2M   (0x130060)
  40#define CRB_HI(off)     ((crb_hub_agt[CRB_BLK(off)] << 20) | ((off) & 0xf0000))
  41#define CRB_INDIRECT_2M (0x1e0000UL)
  42
  43static void netxen_nic_io_write_128M(struct netxen_adapter *adapter,
  44                void __iomem *addr, u32 data);
  45static u32 netxen_nic_io_read_128M(struct netxen_adapter *adapter,
  46                void __iomem *addr);
  47#ifndef readq
  48static inline u64 readq(void __iomem *addr)
  49{
  50        return readl(addr) | (((u64) readl(addr + 4)) << 32LL);
  51}
  52#endif
  53
  54#ifndef writeq
  55static inline void writeq(u64 val, void __iomem *addr)
  56{
  57        writel(((u32) (val)), (addr));
  58        writel(((u32) (val >> 32)), (addr + 4));
  59}
  60#endif
  61
  62#define PCI_OFFSET_FIRST_RANGE(adapter, off)    \
  63        ((adapter)->ahw.pci_base0 + (off))
  64#define PCI_OFFSET_SECOND_RANGE(adapter, off)   \
  65        ((adapter)->ahw.pci_base1 + (off) - SECOND_PAGE_GROUP_START)
  66#define PCI_OFFSET_THIRD_RANGE(adapter, off)    \
  67        ((adapter)->ahw.pci_base2 + (off) - THIRD_PAGE_GROUP_START)
  68
  69static void __iomem *pci_base_offset(struct netxen_adapter *adapter,
  70                                            unsigned long off)
  71{
  72        if (ADDR_IN_RANGE(off, FIRST_PAGE_GROUP_START, FIRST_PAGE_GROUP_END))
  73                return PCI_OFFSET_FIRST_RANGE(adapter, off);
  74
  75        if (ADDR_IN_RANGE(off, SECOND_PAGE_GROUP_START, SECOND_PAGE_GROUP_END))
  76                return PCI_OFFSET_SECOND_RANGE(adapter, off);
  77
  78        if (ADDR_IN_RANGE(off, THIRD_PAGE_GROUP_START, THIRD_PAGE_GROUP_END))
  79                return PCI_OFFSET_THIRD_RANGE(adapter, off);
  80
  81        return NULL;
  82}
  83
  84static crb_128M_2M_block_map_t
  85crb_128M_2M_map[64] __cacheline_aligned_in_smp = {
  86    {{{0, 0,         0,         0} } },         /* 0: PCI */
  87    {{{1, 0x0100000, 0x0102000, 0x120000},      /* 1: PCIE */
  88          {1, 0x0110000, 0x0120000, 0x130000},
  89          {1, 0x0120000, 0x0122000, 0x124000},
  90          {1, 0x0130000, 0x0132000, 0x126000},
  91          {1, 0x0140000, 0x0142000, 0x128000},
  92          {1, 0x0150000, 0x0152000, 0x12a000},
  93          {1, 0x0160000, 0x0170000, 0x110000},
  94          {1, 0x0170000, 0x0172000, 0x12e000},
  95          {0, 0x0000000, 0x0000000, 0x000000},
  96          {0, 0x0000000, 0x0000000, 0x000000},
  97          {0, 0x0000000, 0x0000000, 0x000000},
  98          {0, 0x0000000, 0x0000000, 0x000000},
  99          {0, 0x0000000, 0x0000000, 0x000000},
 100          {0, 0x0000000, 0x0000000, 0x000000},
 101          {1, 0x01e0000, 0x01e0800, 0x122000},
 102          {0, 0x0000000, 0x0000000, 0x000000} } },
 103        {{{1, 0x0200000, 0x0210000, 0x180000} } },/* 2: MN */
 104    {{{0, 0,         0,         0} } },     /* 3: */
 105    {{{1, 0x0400000, 0x0401000, 0x169000} } },/* 4: P2NR1 */
 106    {{{1, 0x0500000, 0x0510000, 0x140000} } },/* 5: SRE   */
 107    {{{1, 0x0600000, 0x0610000, 0x1c0000} } },/* 6: NIU   */
 108    {{{1, 0x0700000, 0x0704000, 0x1b8000} } },/* 7: QM    */
 109    {{{1, 0x0800000, 0x0802000, 0x170000},  /* 8: SQM0  */
 110      {0, 0x0000000, 0x0000000, 0x000000},
 111      {0, 0x0000000, 0x0000000, 0x000000},
 112      {0, 0x0000000, 0x0000000, 0x000000},
 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      {1, 0x08f0000, 0x08f2000, 0x172000} } },
 125    {{{1, 0x0900000, 0x0902000, 0x174000},      /* 9: SQM1*/
 126      {0, 0x0000000, 0x0000000, 0x000000},
 127      {0, 0x0000000, 0x0000000, 0x000000},
 128      {0, 0x0000000, 0x0000000, 0x000000},
 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      {1, 0x09f0000, 0x09f2000, 0x176000} } },
 141    {{{0, 0x0a00000, 0x0a02000, 0x178000},      /* 10: SQM2*/
 142      {0, 0x0000000, 0x0000000, 0x000000},
 143      {0, 0x0000000, 0x0000000, 0x000000},
 144      {0, 0x0000000, 0x0000000, 0x000000},
 145      {0, 0x0000000, 0x0000000, 0x000000},
 146      {0, 0x0000000, 0x0000000, 0x000000},
 147      {0, 0x0000000, 0x0000000, 0x000000},
 148      {0, 0x0000000, 0x0000000, 0x000000},
 149      {0, 0x0000000, 0x0000000, 0x000000},
 150      {0, 0x0000000, 0x0000000, 0x000000},
 151      {0, 0x0000000, 0x0000000, 0x000000},
 152      {0, 0x0000000, 0x0000000, 0x000000},
 153      {0, 0x0000000, 0x0000000, 0x000000},
 154      {0, 0x0000000, 0x0000000, 0x000000},
 155      {0, 0x0000000, 0x0000000, 0x000000},
 156      {1, 0x0af0000, 0x0af2000, 0x17a000} } },
 157    {{{0, 0x0b00000, 0x0b02000, 0x17c000},      /* 11: SQM3*/
 158      {0, 0x0000000, 0x0000000, 0x000000},
 159      {0, 0x0000000, 0x0000000, 0x000000},
 160      {0, 0x0000000, 0x0000000, 0x000000},
 161      {0, 0x0000000, 0x0000000, 0x000000},
 162      {0, 0x0000000, 0x0000000, 0x000000},
 163      {0, 0x0000000, 0x0000000, 0x000000},
 164      {0, 0x0000000, 0x0000000, 0x000000},
 165      {0, 0x0000000, 0x0000000, 0x000000},
 166      {0, 0x0000000, 0x0000000, 0x000000},
 167      {0, 0x0000000, 0x0000000, 0x000000},
 168      {0, 0x0000000, 0x0000000, 0x000000},
 169      {0, 0x0000000, 0x0000000, 0x000000},
 170      {0, 0x0000000, 0x0000000, 0x000000},
 171      {0, 0x0000000, 0x0000000, 0x000000},
 172      {1, 0x0bf0000, 0x0bf2000, 0x17e000} } },
 173        {{{1, 0x0c00000, 0x0c04000, 0x1d4000} } },/* 12: I2Q */
 174        {{{1, 0x0d00000, 0x0d04000, 0x1a4000} } },/* 13: TMR */
 175        {{{1, 0x0e00000, 0x0e04000, 0x1a0000} } },/* 14: ROMUSB */
 176        {{{1, 0x0f00000, 0x0f01000, 0x164000} } },/* 15: PEG4 */
 177        {{{0, 0x1000000, 0x1004000, 0x1a8000} } },/* 16: XDMA */
 178        {{{1, 0x1100000, 0x1101000, 0x160000} } },/* 17: PEG0 */
 179        {{{1, 0x1200000, 0x1201000, 0x161000} } },/* 18: PEG1 */
 180        {{{1, 0x1300000, 0x1301000, 0x162000} } },/* 19: PEG2 */
 181        {{{1, 0x1400000, 0x1401000, 0x163000} } },/* 20: PEG3 */
 182        {{{1, 0x1500000, 0x1501000, 0x165000} } },/* 21: P2ND */
 183        {{{1, 0x1600000, 0x1601000, 0x166000} } },/* 22: P2NI */
 184        {{{0, 0,         0,         0} } },     /* 23: */
 185        {{{0, 0,         0,         0} } },     /* 24: */
 186        {{{0, 0,         0,         0} } },     /* 25: */
 187        {{{0, 0,         0,         0} } },     /* 26: */
 188        {{{0, 0,         0,         0} } },     /* 27: */
 189        {{{0, 0,         0,         0} } },     /* 28: */
 190        {{{1, 0x1d00000, 0x1d10000, 0x190000} } },/* 29: MS */
 191    {{{1, 0x1e00000, 0x1e01000, 0x16a000} } },/* 30: P2NR2 */
 192    {{{1, 0x1f00000, 0x1f10000, 0x150000} } },/* 31: EPG */
 193        {{{0} } },                              /* 32: PCI */
 194        {{{1, 0x2100000, 0x2102000, 0x120000},  /* 33: PCIE */
 195          {1, 0x2110000, 0x2120000, 0x130000},
 196          {1, 0x2120000, 0x2122000, 0x124000},
 197          {1, 0x2130000, 0x2132000, 0x126000},
 198          {1, 0x2140000, 0x2142000, 0x128000},
 199          {1, 0x2150000, 0x2152000, 0x12a000},
 200          {1, 0x2160000, 0x2170000, 0x110000},
 201          {1, 0x2170000, 0x2172000, 0x12e000},
 202          {0, 0x0000000, 0x0000000, 0x000000},
 203          {0, 0x0000000, 0x0000000, 0x000000},
 204          {0, 0x0000000, 0x0000000, 0x000000},
 205          {0, 0x0000000, 0x0000000, 0x000000},
 206          {0, 0x0000000, 0x0000000, 0x000000},
 207          {0, 0x0000000, 0x0000000, 0x000000},
 208          {0, 0x0000000, 0x0000000, 0x000000},
 209          {0, 0x0000000, 0x0000000, 0x000000} } },
 210        {{{1, 0x2200000, 0x2204000, 0x1b0000} } },/* 34: CAM */
 211        {{{0} } },                              /* 35: */
 212        {{{0} } },                              /* 36: */
 213        {{{0} } },                              /* 37: */
 214        {{{0} } },                              /* 38: */
 215        {{{0} } },                              /* 39: */
 216        {{{1, 0x2800000, 0x2804000, 0x1a4000} } },/* 40: TMR */
 217        {{{1, 0x2900000, 0x2901000, 0x16b000} } },/* 41: P2NR3 */
 218        {{{1, 0x2a00000, 0x2a00400, 0x1ac400} } },/* 42: RPMX1 */
 219        {{{1, 0x2b00000, 0x2b00400, 0x1ac800} } },/* 43: RPMX2 */
 220        {{{1, 0x2c00000, 0x2c00400, 0x1acc00} } },/* 44: RPMX3 */
 221        {{{1, 0x2d00000, 0x2d00400, 0x1ad000} } },/* 45: RPMX4 */
 222        {{{1, 0x2e00000, 0x2e00400, 0x1ad400} } },/* 46: RPMX5 */
 223        {{{1, 0x2f00000, 0x2f00400, 0x1ad800} } },/* 47: RPMX6 */
 224        {{{1, 0x3000000, 0x3000400, 0x1adc00} } },/* 48: RPMX7 */
 225        {{{0, 0x3100000, 0x3104000, 0x1a8000} } },/* 49: XDMA */
 226        {{{1, 0x3200000, 0x3204000, 0x1d4000} } },/* 50: I2Q */
 227        {{{1, 0x3300000, 0x3304000, 0x1a0000} } },/* 51: ROMUSB */
 228        {{{0} } },                              /* 52: */
 229        {{{1, 0x3500000, 0x3500400, 0x1ac000} } },/* 53: RPMX0 */
 230        {{{1, 0x3600000, 0x3600400, 0x1ae000} } },/* 54: RPMX8 */
 231        {{{1, 0x3700000, 0x3700400, 0x1ae400} } },/* 55: RPMX9 */
 232        {{{1, 0x3800000, 0x3804000, 0x1d0000} } },/* 56: OCM0 */
 233        {{{1, 0x3900000, 0x3904000, 0x1b4000} } },/* 57: CRYPTO */
 234        {{{1, 0x3a00000, 0x3a04000, 0x1d8000} } },/* 58: SMB */
 235        {{{0} } },                              /* 59: I2C0 */
 236        {{{0} } },                              /* 60: I2C1 */
 237        {{{1, 0x3d00000, 0x3d04000, 0x1d8000} } },/* 61: LPC */
 238        {{{1, 0x3e00000, 0x3e01000, 0x167000} } },/* 62: P2NC */
 239        {{{1, 0x3f00000, 0x3f01000, 0x168000} } }       /* 63: P2NR0 */
 240};
 241
 242/*
 243 * top 12 bits of crb internal address (hub, agent)
 244 */
 245static unsigned crb_hub_agt[64] =
 246{
 247        0,
 248        NETXEN_HW_CRB_HUB_AGT_ADR_PS,
 249        NETXEN_HW_CRB_HUB_AGT_ADR_MN,
 250        NETXEN_HW_CRB_HUB_AGT_ADR_MS,
 251        0,
 252        NETXEN_HW_CRB_HUB_AGT_ADR_SRE,
 253        NETXEN_HW_CRB_HUB_AGT_ADR_NIU,
 254        NETXEN_HW_CRB_HUB_AGT_ADR_QMN,
 255        NETXEN_HW_CRB_HUB_AGT_ADR_SQN0,
 256        NETXEN_HW_CRB_HUB_AGT_ADR_SQN1,
 257        NETXEN_HW_CRB_HUB_AGT_ADR_SQN2,
 258        NETXEN_HW_CRB_HUB_AGT_ADR_SQN3,
 259        NETXEN_HW_CRB_HUB_AGT_ADR_I2Q,
 260        NETXEN_HW_CRB_HUB_AGT_ADR_TIMR,
 261        NETXEN_HW_CRB_HUB_AGT_ADR_ROMUSB,
 262        NETXEN_HW_CRB_HUB_AGT_ADR_PGN4,
 263        NETXEN_HW_CRB_HUB_AGT_ADR_XDMA,
 264        NETXEN_HW_CRB_HUB_AGT_ADR_PGN0,
 265        NETXEN_HW_CRB_HUB_AGT_ADR_PGN1,
 266        NETXEN_HW_CRB_HUB_AGT_ADR_PGN2,
 267        NETXEN_HW_CRB_HUB_AGT_ADR_PGN3,
 268        NETXEN_HW_CRB_HUB_AGT_ADR_PGND,
 269        NETXEN_HW_CRB_HUB_AGT_ADR_PGNI,
 270        NETXEN_HW_CRB_HUB_AGT_ADR_PGS0,
 271        NETXEN_HW_CRB_HUB_AGT_ADR_PGS1,
 272        NETXEN_HW_CRB_HUB_AGT_ADR_PGS2,
 273        NETXEN_HW_CRB_HUB_AGT_ADR_PGS3,
 274        0,
 275        NETXEN_HW_CRB_HUB_AGT_ADR_PGSI,
 276        NETXEN_HW_CRB_HUB_AGT_ADR_SN,
 277        0,
 278        NETXEN_HW_CRB_HUB_AGT_ADR_EG,
 279        0,
 280        NETXEN_HW_CRB_HUB_AGT_ADR_PS,
 281        NETXEN_HW_CRB_HUB_AGT_ADR_CAM,
 282        0,
 283        0,
 284        0,
 285        0,
 286        0,
 287        NETXEN_HW_CRB_HUB_AGT_ADR_TIMR,
 288        0,
 289        NETXEN_HW_CRB_HUB_AGT_ADR_RPMX1,
 290        NETXEN_HW_CRB_HUB_AGT_ADR_RPMX2,
 291        NETXEN_HW_CRB_HUB_AGT_ADR_RPMX3,
 292        NETXEN_HW_CRB_HUB_AGT_ADR_RPMX4,
 293        NETXEN_HW_CRB_HUB_AGT_ADR_RPMX5,
 294        NETXEN_HW_CRB_HUB_AGT_ADR_RPMX6,
 295        NETXEN_HW_CRB_HUB_AGT_ADR_RPMX7,
 296        NETXEN_HW_CRB_HUB_AGT_ADR_XDMA,
 297        NETXEN_HW_CRB_HUB_AGT_ADR_I2Q,
 298        NETXEN_HW_CRB_HUB_AGT_ADR_ROMUSB,
 299        0,
 300        NETXEN_HW_CRB_HUB_AGT_ADR_RPMX0,
 301        NETXEN_HW_CRB_HUB_AGT_ADR_RPMX8,
 302        NETXEN_HW_CRB_HUB_AGT_ADR_RPMX9,
 303        NETXEN_HW_CRB_HUB_AGT_ADR_OCM0,
 304        0,
 305        NETXEN_HW_CRB_HUB_AGT_ADR_SMB,
 306        NETXEN_HW_CRB_HUB_AGT_ADR_I2C0,
 307        NETXEN_HW_CRB_HUB_AGT_ADR_I2C1,
 308        0,
 309        NETXEN_HW_CRB_HUB_AGT_ADR_PGNC,
 310        0,
 311};
 312
 313/*  PCI Windowing for DDR regions.  */
 314
 315#define NETXEN_WINDOW_ONE       0x2000000 /*CRB Window: bit 25 of CRB address */
 316
 317#define NETXEN_PCIE_SEM_TIMEOUT 10000
 318
 319static int netxen_nic_set_mtu_xgb(struct netxen_adapter *adapter, int new_mtu);
 320
 321int
 322netxen_pcie_sem_lock(struct netxen_adapter *adapter, int sem, u32 id_reg)
 323{
 324        int done = 0, timeout = 0;
 325
 326        while (!done) {
 327                done = NXRD32(adapter, NETXEN_PCIE_REG(PCIE_SEM_LOCK(sem)));
 328                if (done == 1)
 329                        break;
 330                if (++timeout >= NETXEN_PCIE_SEM_TIMEOUT)
 331                        return -EIO;
 332                msleep(1);
 333        }
 334
 335        if (id_reg)
 336                NXWR32(adapter, id_reg, adapter->portnum);
 337
 338        return 0;
 339}
 340
 341void
 342netxen_pcie_sem_unlock(struct netxen_adapter *adapter, int sem)
 343{
 344        NXRD32(adapter, NETXEN_PCIE_REG(PCIE_SEM_UNLOCK(sem)));
 345}
 346
 347static int netxen_niu_xg_init_port(struct netxen_adapter *adapter, int port)
 348{
 349        if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
 350                NXWR32(adapter, NETXEN_NIU_XGE_CONFIG_1+(0x10000*port), 0x1447);
 351                NXWR32(adapter, NETXEN_NIU_XGE_CONFIG_0+(0x10000*port), 0x5);
 352        }
 353
 354        return 0;
 355}
 356
 357/* Disable an XG interface */
 358static int netxen_niu_disable_xg_port(struct netxen_adapter *adapter)
 359{
 360        __u32 mac_cfg;
 361        u32 port = adapter->physical_port;
 362
 363        if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
 364                return 0;
 365
 366        if (port >= NETXEN_NIU_MAX_XG_PORTS)
 367                return -EINVAL;
 368
 369        mac_cfg = 0;
 370        if (NXWR32(adapter,
 371                        NETXEN_NIU_XGE_CONFIG_0 + (0x10000 * port), mac_cfg))
 372                return -EIO;
 373        return 0;
 374}
 375
 376#define NETXEN_UNICAST_ADDR(port, index) \
 377        (NETXEN_UNICAST_ADDR_BASE+(port*32)+(index*8))
 378#define NETXEN_MCAST_ADDR(port, index) \
 379        (NETXEN_MULTICAST_ADDR_BASE+(port*0x80)+(index*8))
 380#define MAC_HI(addr) \
 381        ((addr[2] << 16) | (addr[1] << 8) | (addr[0]))
 382#define MAC_LO(addr) \
 383        ((addr[5] << 16) | (addr[4] << 8) | (addr[3]))
 384
 385static int netxen_p2_nic_set_promisc(struct netxen_adapter *adapter, u32 mode)
 386{
 387        u32 mac_cfg;
 388        u32 cnt = 0;
 389        __u32 reg = 0x0200;
 390        u32 port = adapter->physical_port;
 391        u16 board_type = adapter->ahw.board_type;
 392
 393        if (port >= NETXEN_NIU_MAX_XG_PORTS)
 394                return -EINVAL;
 395
 396        mac_cfg = NXRD32(adapter, NETXEN_NIU_XGE_CONFIG_0 + (0x10000 * port));
 397        mac_cfg &= ~0x4;
 398        NXWR32(adapter, NETXEN_NIU_XGE_CONFIG_0 + (0x10000 * port), mac_cfg);
 399
 400        if ((board_type == NETXEN_BRDTYPE_P2_SB31_10G_IMEZ) ||
 401                        (board_type == NETXEN_BRDTYPE_P2_SB31_10G_HMEZ))
 402                reg = (0x20 << port);
 403
 404        NXWR32(adapter, NETXEN_NIU_FRAME_COUNT_SELECT, reg);
 405
 406        mdelay(10);
 407
 408        while (NXRD32(adapter, NETXEN_NIU_FRAME_COUNT) && ++cnt < 20)
 409                mdelay(10);
 410
 411        if (cnt < 20) {
 412
 413                reg = NXRD32(adapter,
 414                        NETXEN_NIU_XGE_CONFIG_1 + (0x10000 * port));
 415
 416                if (mode == NETXEN_NIU_PROMISC_MODE)
 417                        reg = (reg | 0x2000UL);
 418                else
 419                        reg = (reg & ~0x2000UL);
 420
 421                if (mode == NETXEN_NIU_ALLMULTI_MODE)
 422                        reg = (reg | 0x1000UL);
 423                else
 424                        reg = (reg & ~0x1000UL);
 425
 426                NXWR32(adapter,
 427                        NETXEN_NIU_XGE_CONFIG_1 + (0x10000 * port), reg);
 428        }
 429
 430        mac_cfg |= 0x4;
 431        NXWR32(adapter, NETXEN_NIU_XGE_CONFIG_0 + (0x10000 * port), mac_cfg);
 432
 433        return 0;
 434}
 435
 436static int netxen_p2_nic_set_mac_addr(struct netxen_adapter *adapter, u8 *addr)
 437{
 438        u32 mac_hi, mac_lo;
 439        u32 reg_hi, reg_lo;
 440
 441        u8 phy = adapter->physical_port;
 442
 443        if (phy >= NETXEN_NIU_MAX_XG_PORTS)
 444                return -EINVAL;
 445
 446        mac_lo = ((u32)addr[0] << 16) | ((u32)addr[1] << 24);
 447        mac_hi = addr[2] | ((u32)addr[3] << 8) |
 448                ((u32)addr[4] << 16) | ((u32)addr[5] << 24);
 449
 450        reg_lo = NETXEN_NIU_XGE_STATION_ADDR_0_1 + (0x10000 * phy);
 451        reg_hi = NETXEN_NIU_XGE_STATION_ADDR_0_HI + (0x10000 * phy);
 452
 453        /* write twice to flush */
 454        if (NXWR32(adapter, reg_lo, mac_lo) || NXWR32(adapter, reg_hi, mac_hi))
 455                return -EIO;
 456        if (NXWR32(adapter, reg_lo, mac_lo) || NXWR32(adapter, reg_hi, mac_hi))
 457                return -EIO;
 458
 459        return 0;
 460}
 461
 462static int
 463netxen_nic_enable_mcast_filter(struct netxen_adapter *adapter)
 464{
 465        u32     val = 0;
 466        u16 port = adapter->physical_port;
 467        u8 *addr = adapter->mac_addr;
 468
 469        if (adapter->mc_enabled)
 470                return 0;
 471
 472        val = NXRD32(adapter, NETXEN_MAC_ADDR_CNTL_REG);
 473        val |= (1UL << (28+port));
 474        NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
 475
 476        /* add broadcast addr to filter */
 477        val = 0xffffff;
 478        NXWR32(adapter, NETXEN_UNICAST_ADDR(port, 0), val);
 479        NXWR32(adapter, NETXEN_UNICAST_ADDR(port, 0)+4, val);
 480
 481        /* add station addr to filter */
 482        val = MAC_HI(addr);
 483        NXWR32(adapter, NETXEN_UNICAST_ADDR(port, 1), val);
 484        val = MAC_LO(addr);
 485        NXWR32(adapter, NETXEN_UNICAST_ADDR(port, 1)+4, val);
 486
 487        adapter->mc_enabled = 1;
 488        return 0;
 489}
 490
 491static int
 492netxen_nic_disable_mcast_filter(struct netxen_adapter *adapter)
 493{
 494        u32     val = 0;
 495        u16 port = adapter->physical_port;
 496        u8 *addr = adapter->mac_addr;
 497
 498        if (!adapter->mc_enabled)
 499                return 0;
 500
 501        val = NXRD32(adapter, NETXEN_MAC_ADDR_CNTL_REG);
 502        val &= ~(1UL << (28+port));
 503        NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
 504
 505        val = MAC_HI(addr);
 506        NXWR32(adapter, NETXEN_UNICAST_ADDR(port, 0), val);
 507        val = MAC_LO(addr);
 508        NXWR32(adapter, NETXEN_UNICAST_ADDR(port, 0)+4, val);
 509
 510        NXWR32(adapter, NETXEN_UNICAST_ADDR(port, 1), 0);
 511        NXWR32(adapter, NETXEN_UNICAST_ADDR(port, 1)+4, 0);
 512
 513        adapter->mc_enabled = 0;
 514        return 0;
 515}
 516
 517static int
 518netxen_nic_set_mcast_addr(struct netxen_adapter *adapter,
 519                int index, u8 *addr)
 520{
 521        u32 hi = 0, lo = 0;
 522        u16 port = adapter->physical_port;
 523
 524        lo = MAC_LO(addr);
 525        hi = MAC_HI(addr);
 526
 527        NXWR32(adapter, NETXEN_MCAST_ADDR(port, index), hi);
 528        NXWR32(adapter, NETXEN_MCAST_ADDR(port, index)+4, lo);
 529
 530        return 0;
 531}
 532
 533static void netxen_p2_nic_set_multi(struct net_device *netdev)
 534{
 535        struct netxen_adapter *adapter = netdev_priv(netdev);
 536        struct netdev_hw_addr *ha;
 537        u8 null_addr[ETH_ALEN];
 538        int i;
 539
 540        eth_zero_addr(null_addr);
 541
 542        if (netdev->flags & IFF_PROMISC) {
 543
 544                adapter->set_promisc(adapter,
 545                                NETXEN_NIU_PROMISC_MODE);
 546
 547                /* Full promiscuous mode */
 548                netxen_nic_disable_mcast_filter(adapter);
 549
 550                return;
 551        }
 552
 553        if (netdev_mc_empty(netdev)) {
 554                adapter->set_promisc(adapter,
 555                                NETXEN_NIU_NON_PROMISC_MODE);
 556                netxen_nic_disable_mcast_filter(adapter);
 557                return;
 558        }
 559
 560        adapter->set_promisc(adapter, NETXEN_NIU_ALLMULTI_MODE);
 561        if (netdev->flags & IFF_ALLMULTI ||
 562                        netdev_mc_count(netdev) > adapter->max_mc_count) {
 563                netxen_nic_disable_mcast_filter(adapter);
 564                return;
 565        }
 566
 567        netxen_nic_enable_mcast_filter(adapter);
 568
 569        i = 0;
 570        netdev_for_each_mc_addr(ha, netdev)
 571                netxen_nic_set_mcast_addr(adapter, i++, ha->addr);
 572
 573        /* Clear out remaining addresses */
 574        while (i < adapter->max_mc_count)
 575                netxen_nic_set_mcast_addr(adapter, i++, null_addr);
 576}
 577
 578static int
 579netxen_send_cmd_descs(struct netxen_adapter *adapter,
 580                struct cmd_desc_type0 *cmd_desc_arr, int nr_desc)
 581{
 582        u32 i, producer, consumer;
 583        struct netxen_cmd_buffer *pbuf;
 584        struct cmd_desc_type0 *cmd_desc;
 585        struct nx_host_tx_ring *tx_ring;
 586
 587        i = 0;
 588
 589        if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
 590                return -EIO;
 591
 592        tx_ring = adapter->tx_ring;
 593        __netif_tx_lock_bh(tx_ring->txq);
 594
 595        producer = tx_ring->producer;
 596        consumer = tx_ring->sw_consumer;
 597
 598        if (nr_desc >= netxen_tx_avail(tx_ring)) {
 599                netif_tx_stop_queue(tx_ring->txq);
 600                smp_mb();
 601                if (netxen_tx_avail(tx_ring) > nr_desc) {
 602                        if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH)
 603                                netif_tx_wake_queue(tx_ring->txq);
 604                } else {
 605                        __netif_tx_unlock_bh(tx_ring->txq);
 606                        return -EBUSY;
 607                }
 608        }
 609
 610        do {
 611                cmd_desc = &cmd_desc_arr[i];
 612
 613                pbuf = &tx_ring->cmd_buf_arr[producer];
 614                pbuf->skb = NULL;
 615                pbuf->frag_count = 0;
 616
 617                memcpy(&tx_ring->desc_head[producer],
 618                        &cmd_desc_arr[i], sizeof(struct cmd_desc_type0));
 619
 620                producer = get_next_index(producer, tx_ring->num_desc);
 621                i++;
 622
 623        } while (i != nr_desc);
 624
 625        tx_ring->producer = producer;
 626
 627        netxen_nic_update_cmd_producer(adapter, tx_ring);
 628
 629        __netif_tx_unlock_bh(tx_ring->txq);
 630
 631        return 0;
 632}
 633
 634static int
 635nx_p3_sre_macaddr_change(struct netxen_adapter *adapter, u8 *addr, unsigned op)
 636{
 637        nx_nic_req_t req;
 638        nx_mac_req_t *mac_req;
 639        u64 word;
 640
 641        memset(&req, 0, sizeof(nx_nic_req_t));
 642        req.qhdr = cpu_to_le64(NX_NIC_REQUEST << 23);
 643
 644        word = NX_MAC_EVENT | ((u64)adapter->portnum << 16);
 645        req.req_hdr = cpu_to_le64(word);
 646
 647        mac_req = (nx_mac_req_t *)&req.words[0];
 648        mac_req->op = op;
 649        memcpy(mac_req->mac_addr, addr, ETH_ALEN);
 650
 651        return netxen_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 652}
 653
 654static int nx_p3_nic_add_mac(struct netxen_adapter *adapter,
 655                const u8 *addr, struct list_head *del_list)
 656{
 657        struct list_head *head;
 658        nx_mac_list_t *cur;
 659
 660        /* look up if already exists */
 661        list_for_each(head, del_list) {
 662                cur = list_entry(head, nx_mac_list_t, list);
 663
 664                if (ether_addr_equal(addr, cur->mac_addr)) {
 665                        list_move_tail(head, &adapter->mac_list);
 666                        return 0;
 667                }
 668        }
 669
 670        cur = kzalloc(sizeof(nx_mac_list_t), GFP_ATOMIC);
 671        if (cur == NULL)
 672                return -ENOMEM;
 673
 674        memcpy(cur->mac_addr, addr, ETH_ALEN);
 675        list_add_tail(&cur->list, &adapter->mac_list);
 676        return nx_p3_sre_macaddr_change(adapter,
 677                                cur->mac_addr, NETXEN_MAC_ADD);
 678}
 679
 680static void netxen_p3_nic_set_multi(struct net_device *netdev)
 681{
 682        struct netxen_adapter *adapter = netdev_priv(netdev);
 683        struct netdev_hw_addr *ha;
 684        static const u8 bcast_addr[ETH_ALEN] = {
 685                0xff, 0xff, 0xff, 0xff, 0xff, 0xff
 686        };
 687        u32 mode = VPORT_MISS_MODE_DROP;
 688        LIST_HEAD(del_list);
 689        struct list_head *head;
 690        nx_mac_list_t *cur;
 691
 692        if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
 693                return;
 694
 695        list_splice_tail_init(&adapter->mac_list, &del_list);
 696
 697        nx_p3_nic_add_mac(adapter, adapter->mac_addr, &del_list);
 698        nx_p3_nic_add_mac(adapter, bcast_addr, &del_list);
 699
 700        if (netdev->flags & IFF_PROMISC) {
 701                mode = VPORT_MISS_MODE_ACCEPT_ALL;
 702                goto send_fw_cmd;
 703        }
 704
 705        if ((netdev->flags & IFF_ALLMULTI) ||
 706                        (netdev_mc_count(netdev) > adapter->max_mc_count)) {
 707                mode = VPORT_MISS_MODE_ACCEPT_MULTI;
 708                goto send_fw_cmd;
 709        }
 710
 711        if (!netdev_mc_empty(netdev)) {
 712                netdev_for_each_mc_addr(ha, netdev)
 713                        nx_p3_nic_add_mac(adapter, ha->addr, &del_list);
 714        }
 715
 716send_fw_cmd:
 717        adapter->set_promisc(adapter, mode);
 718        head = &del_list;
 719        while (!list_empty(head)) {
 720                cur = list_entry(head->next, nx_mac_list_t, list);
 721
 722                nx_p3_sre_macaddr_change(adapter,
 723                                cur->mac_addr, NETXEN_MAC_DEL);
 724                list_del(&cur->list);
 725                kfree(cur);
 726        }
 727}
 728
 729static int netxen_p3_nic_set_promisc(struct netxen_adapter *adapter, u32 mode)
 730{
 731        nx_nic_req_t req;
 732        u64 word;
 733
 734        memset(&req, 0, sizeof(nx_nic_req_t));
 735
 736        req.qhdr = cpu_to_le64(NX_HOST_REQUEST << 23);
 737
 738        word = NX_NIC_H2C_OPCODE_PROXY_SET_VPORT_MISS_MODE |
 739                        ((u64)adapter->portnum << 16);
 740        req.req_hdr = cpu_to_le64(word);
 741
 742        req.words[0] = cpu_to_le64(mode);
 743
 744        return netxen_send_cmd_descs(adapter,
 745                                (struct cmd_desc_type0 *)&req, 1);
 746}
 747
 748void netxen_p3_free_mac_list(struct netxen_adapter *adapter)
 749{
 750        nx_mac_list_t *cur;
 751        struct list_head *head = &adapter->mac_list;
 752
 753        while (!list_empty(head)) {
 754                cur = list_entry(head->next, nx_mac_list_t, list);
 755                nx_p3_sre_macaddr_change(adapter,
 756                                cur->mac_addr, NETXEN_MAC_DEL);
 757                list_del(&cur->list);
 758                kfree(cur);
 759        }
 760}
 761
 762static int netxen_p3_nic_set_mac_addr(struct netxen_adapter *adapter, u8 *addr)
 763{
 764        /* assuming caller has already copied new addr to netdev */
 765        netxen_p3_nic_set_multi(adapter->netdev);
 766        return 0;
 767}
 768
 769#define NETXEN_CONFIG_INTR_COALESCE     3
 770
 771/*
 772 * Send the interrupt coalescing parameter set by ethtool to the card.
 773 */
 774int netxen_config_intr_coalesce(struct netxen_adapter *adapter)
 775{
 776        nx_nic_req_t req;
 777        u64 word[6];
 778        int rv, i;
 779
 780        memset(&req, 0, sizeof(nx_nic_req_t));
 781        memset(word, 0, sizeof(word));
 782
 783        req.qhdr = cpu_to_le64(NX_HOST_REQUEST << 23);
 784
 785        word[0] = NETXEN_CONFIG_INTR_COALESCE | ((u64)adapter->portnum << 16);
 786        req.req_hdr = cpu_to_le64(word[0]);
 787
 788        memcpy(&word[0], &adapter->coal, sizeof(adapter->coal));
 789        for (i = 0; i < 6; i++)
 790                req.words[i] = cpu_to_le64(word[i]);
 791
 792        rv = netxen_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 793        if (rv != 0) {
 794                printk(KERN_ERR "ERROR. Could not send "
 795                        "interrupt coalescing parameters\n");
 796        }
 797
 798        return rv;
 799}
 800
 801int netxen_config_hw_lro(struct netxen_adapter *adapter, int enable)
 802{
 803        nx_nic_req_t req;
 804        u64 word;
 805        int rv = 0;
 806
 807        if (!test_bit(__NX_FW_ATTACHED, &adapter->state))
 808                return 0;
 809
 810        memset(&req, 0, sizeof(nx_nic_req_t));
 811
 812        req.qhdr = cpu_to_le64(NX_HOST_REQUEST << 23);
 813
 814        word = NX_NIC_H2C_OPCODE_CONFIG_HW_LRO | ((u64)adapter->portnum << 16);
 815        req.req_hdr = cpu_to_le64(word);
 816
 817        req.words[0] = cpu_to_le64(enable);
 818
 819        rv = netxen_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 820        if (rv != 0) {
 821                printk(KERN_ERR "ERROR. Could not send "
 822                        "configure hw lro request\n");
 823        }
 824
 825        return rv;
 826}
 827
 828int netxen_config_bridged_mode(struct netxen_adapter *adapter, int enable)
 829{
 830        nx_nic_req_t req;
 831        u64 word;
 832        int rv = 0;
 833
 834        if (!!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED) == enable)
 835                return rv;
 836
 837        memset(&req, 0, sizeof(nx_nic_req_t));
 838
 839        req.qhdr = cpu_to_le64(NX_HOST_REQUEST << 23);
 840
 841        word = NX_NIC_H2C_OPCODE_CONFIG_BRIDGING |
 842                ((u64)adapter->portnum << 16);
 843        req.req_hdr = cpu_to_le64(word);
 844
 845        req.words[0] = cpu_to_le64(enable);
 846
 847        rv = netxen_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 848        if (rv != 0) {
 849                printk(KERN_ERR "ERROR. Could not send "
 850                                "configure bridge mode request\n");
 851        }
 852
 853        adapter->flags ^= NETXEN_NIC_BRIDGE_ENABLED;
 854
 855        return rv;
 856}
 857
 858
 859#define RSS_HASHTYPE_IP_TCP     0x3
 860
 861int netxen_config_rss(struct netxen_adapter *adapter, int enable)
 862{
 863        nx_nic_req_t req;
 864        u64 word;
 865        int i, rv;
 866
 867        static const u64 key[] = {
 868                0xbeac01fa6a42b73bULL, 0x8030f20c77cb2da3ULL,
 869                0xae7b30b4d0ca2bcbULL, 0x43a38fb04167253dULL,
 870                0x255b0ec26d5a56daULL
 871        };
 872
 873
 874        memset(&req, 0, sizeof(nx_nic_req_t));
 875        req.qhdr = cpu_to_le64(NX_HOST_REQUEST << 23);
 876
 877        word = NX_NIC_H2C_OPCODE_CONFIG_RSS | ((u64)adapter->portnum << 16);
 878        req.req_hdr = cpu_to_le64(word);
 879
 880        /*
 881         * RSS request:
 882         * bits 3-0: hash_method
 883         *      5-4: hash_type_ipv4
 884         *      7-6: hash_type_ipv6
 885         *        8: enable
 886         *        9: use indirection table
 887         *    47-10: reserved
 888         *    63-48: indirection table mask
 889         */
 890        word =  ((u64)(RSS_HASHTYPE_IP_TCP & 0x3) << 4) |
 891                ((u64)(RSS_HASHTYPE_IP_TCP & 0x3) << 6) |
 892                ((u64)(enable & 0x1) << 8) |
 893                ((0x7ULL) << 48);
 894        req.words[0] = cpu_to_le64(word);
 895        for (i = 0; i < ARRAY_SIZE(key); i++)
 896                req.words[i+1] = cpu_to_le64(key[i]);
 897
 898
 899        rv = netxen_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 900        if (rv != 0) {
 901                printk(KERN_ERR "%s: could not configure RSS\n",
 902                                adapter->netdev->name);
 903        }
 904
 905        return rv;
 906}
 907
 908int netxen_config_ipaddr(struct netxen_adapter *adapter, __be32 ip, int cmd)
 909{
 910        nx_nic_req_t req;
 911        u64 word;
 912        int rv;
 913
 914        memset(&req, 0, sizeof(nx_nic_req_t));
 915        req.qhdr = cpu_to_le64(NX_HOST_REQUEST << 23);
 916
 917        word = NX_NIC_H2C_OPCODE_CONFIG_IPADDR | ((u64)adapter->portnum << 16);
 918        req.req_hdr = cpu_to_le64(word);
 919
 920        req.words[0] = cpu_to_le64(cmd);
 921        memcpy(&req.words[1], &ip, sizeof(u32));
 922
 923        rv = netxen_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 924        if (rv != 0) {
 925                printk(KERN_ERR "%s: could not notify %s IP 0x%x request\n",
 926                                adapter->netdev->name,
 927                                (cmd == NX_IP_UP) ? "Add" : "Remove", ip);
 928        }
 929        return rv;
 930}
 931
 932int netxen_linkevent_request(struct netxen_adapter *adapter, int enable)
 933{
 934        nx_nic_req_t req;
 935        u64 word;
 936        int rv;
 937
 938        memset(&req, 0, sizeof(nx_nic_req_t));
 939        req.qhdr = cpu_to_le64(NX_HOST_REQUEST << 23);
 940
 941        word = NX_NIC_H2C_OPCODE_GET_LINKEVENT | ((u64)adapter->portnum << 16);
 942        req.req_hdr = cpu_to_le64(word);
 943        req.words[0] = cpu_to_le64(enable | (enable << 8));
 944
 945        rv = netxen_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 946        if (rv != 0) {
 947                printk(KERN_ERR "%s: could not configure link notification\n",
 948                                adapter->netdev->name);
 949        }
 950
 951        return rv;
 952}
 953
 954int netxen_send_lro_cleanup(struct netxen_adapter *adapter)
 955{
 956        nx_nic_req_t req;
 957        u64 word;
 958        int rv;
 959
 960        if (!test_bit(__NX_FW_ATTACHED, &adapter->state))
 961                return 0;
 962
 963        memset(&req, 0, sizeof(nx_nic_req_t));
 964        req.qhdr = cpu_to_le64(NX_HOST_REQUEST << 23);
 965
 966        word = NX_NIC_H2C_OPCODE_LRO_REQUEST |
 967                ((u64)adapter->portnum << 16) |
 968                ((u64)NX_NIC_LRO_REQUEST_CLEANUP << 56) ;
 969
 970        req.req_hdr = cpu_to_le64(word);
 971
 972        rv = netxen_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 973        if (rv != 0) {
 974                printk(KERN_ERR "%s: could not cleanup lro flows\n",
 975                                adapter->netdev->name);
 976        }
 977        return rv;
 978}
 979
 980/*
 981 * netxen_nic_change_mtu - Change the Maximum Transfer Unit
 982 * @returns 0 on success, negative on failure
 983 */
 984
 985#define MTU_FUDGE_FACTOR        100
 986
 987int netxen_nic_change_mtu(struct net_device *netdev, int mtu)
 988{
 989        struct netxen_adapter *adapter = netdev_priv(netdev);
 990        int rc = 0;
 991
 992        if (adapter->set_mtu)
 993                rc = adapter->set_mtu(adapter, mtu);
 994
 995        if (!rc)
 996                netdev->mtu = mtu;
 997
 998        return rc;
 999}
1000
1001static int netxen_get_flash_block(struct netxen_adapter *adapter, int base,
1002                                  int size, __le32 * buf)
1003{
1004        int i, v, addr;
1005        __le32 *ptr32;
1006        int ret;
1007
1008        addr = base;
1009        ptr32 = buf;
1010        for (i = 0; i < size / sizeof(u32); i++) {
1011                ret = netxen_rom_fast_read(adapter, addr, &v);
1012                if (ret)
1013                        return ret;
1014
1015                *ptr32 = cpu_to_le32(v);
1016                ptr32++;
1017                addr += sizeof(u32);
1018        }
1019        if ((char *)buf + size > (char *)ptr32) {
1020                __le32 local;
1021                ret = netxen_rom_fast_read(adapter, addr, &v);
1022                if (ret)
1023                        return ret;
1024                local = cpu_to_le32(v);
1025                memcpy(ptr32, &local, (char *)buf + size - (char *)ptr32);
1026        }
1027
1028        return 0;
1029}
1030
1031int netxen_get_flash_mac_addr(struct netxen_adapter *adapter, u64 *mac)
1032{
1033        __le32 *pmac = (__le32 *) mac;
1034        u32 offset;
1035
1036        offset = NX_FW_MAC_ADDR_OFFSET + (adapter->portnum * sizeof(u64));
1037
1038        if (netxen_get_flash_block(adapter, offset, sizeof(u64), pmac) == -1)
1039                return -1;
1040
1041        if (*mac == ~0ULL) {
1042
1043                offset = NX_OLD_MAC_ADDR_OFFSET +
1044                        (adapter->portnum * sizeof(u64));
1045
1046                if (netxen_get_flash_block(adapter,
1047                                        offset, sizeof(u64), pmac) == -1)
1048                        return -1;
1049
1050                if (*mac == ~0ULL)
1051                        return -1;
1052        }
1053        return 0;
1054}
1055
1056int netxen_p3_get_mac_addr(struct netxen_adapter *adapter, u64 *mac)
1057{
1058        uint32_t crbaddr, mac_hi, mac_lo;
1059        int pci_func = adapter->ahw.pci_func;
1060
1061        crbaddr = CRB_MAC_BLOCK_START +
1062                (4 * ((pci_func/2) * 3)) + (4 * (pci_func & 1));
1063
1064        mac_lo = NXRD32(adapter, crbaddr);
1065        mac_hi = NXRD32(adapter, crbaddr+4);
1066
1067        if (pci_func & 1)
1068                *mac = le64_to_cpu((mac_lo >> 16) | ((u64)mac_hi << 16));
1069        else
1070                *mac = le64_to_cpu((u64)mac_lo | ((u64)mac_hi << 32));
1071
1072        return 0;
1073}
1074
1075/*
1076 * Changes the CRB window to the specified window.
1077 */
1078static void
1079netxen_nic_pci_set_crbwindow_128M(struct netxen_adapter *adapter,
1080                u32 window)
1081{
1082        void __iomem *offset;
1083        int count = 10;
1084        u8 func = adapter->ahw.pci_func;
1085
1086        if (adapter->ahw.crb_win == window)
1087                return;
1088
1089        offset = PCI_OFFSET_SECOND_RANGE(adapter,
1090                        NETXEN_PCIX_PH_REG(PCIE_CRB_WINDOW_REG(func)));
1091
1092        writel(window, offset);
1093        do {
1094                if (window == readl(offset))
1095                        break;
1096
1097                if (printk_ratelimit())
1098                        dev_warn(&adapter->pdev->dev,
1099                                        "failed to set CRB window to %d\n",
1100                                        (window == NETXEN_WINDOW_ONE));
1101                udelay(1);
1102
1103        } while (--count > 0);
1104
1105        if (count > 0)
1106                adapter->ahw.crb_win = window;
1107}
1108
1109/*
1110 * Returns < 0 if off is not valid,
1111 *       1 if window access is needed. 'off' is set to offset from
1112 *         CRB space in 128M pci map
1113 *       0 if no window access is needed. 'off' is set to 2M addr
1114 * In: 'off' is offset from base in 128M pci map
1115 */
1116static int
1117netxen_nic_pci_get_crb_addr_2M(struct netxen_adapter *adapter,
1118                ulong off, void __iomem **addr)
1119{
1120        crb_128M_2M_sub_block_map_t *m;
1121
1122
1123        if ((off >= NETXEN_CRB_MAX) || (off < NETXEN_PCI_CRBSPACE))
1124                return -EINVAL;
1125
1126        off -= NETXEN_PCI_CRBSPACE;
1127
1128        /*
1129         * Try direct map
1130         */
1131        m = &crb_128M_2M_map[CRB_BLK(off)].sub_block[CRB_SUBBLK(off)];
1132
1133        if (m->valid && (m->start_128M <= off) && (m->end_128M > off)) {
1134                *addr = adapter->ahw.pci_base0 + m->start_2M +
1135                        (off - m->start_128M);
1136                return 0;
1137        }
1138
1139        /*
1140         * Not in direct map, use crb window
1141         */
1142        *addr = adapter->ahw.pci_base0 + CRB_INDIRECT_2M +
1143                (off & MASK(16));
1144        return 1;
1145}
1146
1147/*
1148 * In: 'off' is offset from CRB space in 128M pci map
1149 * Out: 'off' is 2M pci map addr
1150 * side effect: lock crb window
1151 */
1152static void
1153netxen_nic_pci_set_crbwindow_2M(struct netxen_adapter *adapter, ulong off)
1154{
1155        u32 window;
1156        void __iomem *addr = adapter->ahw.pci_base0 + CRB_WINDOW_2M;
1157
1158        off -= NETXEN_PCI_CRBSPACE;
1159
1160        window = CRB_HI(off);
1161
1162        writel(window, addr);
1163        if (readl(addr) != window) {
1164                if (printk_ratelimit())
1165                        dev_warn(&adapter->pdev->dev,
1166                                "failed to set CRB window to %d off 0x%lx\n",
1167                                window, off);
1168        }
1169}
1170
1171static void __iomem *
1172netxen_nic_map_indirect_address_128M(struct netxen_adapter *adapter,
1173                ulong win_off, void __iomem **mem_ptr)
1174{
1175        ulong off = win_off;
1176        void __iomem *addr;
1177        resource_size_t mem_base;
1178
1179        if (ADDR_IN_WINDOW1(win_off))
1180                off = NETXEN_CRB_NORMAL(win_off);
1181
1182        addr = pci_base_offset(adapter, off);
1183        if (addr)
1184                return addr;
1185
1186        if (adapter->ahw.pci_len0 == 0)
1187                off -= NETXEN_PCI_CRBSPACE;
1188
1189        mem_base = pci_resource_start(adapter->pdev, 0);
1190        *mem_ptr = ioremap(mem_base + (off & PAGE_MASK), PAGE_SIZE);
1191        if (*mem_ptr)
1192                addr = *mem_ptr + (off & (PAGE_SIZE - 1));
1193
1194        return addr;
1195}
1196
1197static int
1198netxen_nic_hw_write_wx_128M(struct netxen_adapter *adapter, ulong off, u32 data)
1199{
1200        unsigned long flags;
1201        void __iomem *addr, *mem_ptr = NULL;
1202
1203        addr = netxen_nic_map_indirect_address_128M(adapter, off, &mem_ptr);
1204        if (!addr)
1205                return -EIO;
1206
1207        if (ADDR_IN_WINDOW1(off)) { /* Window 1 */
1208                netxen_nic_io_write_128M(adapter, addr, data);
1209        } else {        /* Window 0 */
1210                write_lock_irqsave(&adapter->ahw.crb_lock, flags);
1211                netxen_nic_pci_set_crbwindow_128M(adapter, 0);
1212                writel(data, addr);
1213                netxen_nic_pci_set_crbwindow_128M(adapter,
1214                                NETXEN_WINDOW_ONE);
1215                write_unlock_irqrestore(&adapter->ahw.crb_lock, flags);
1216        }
1217
1218        if (mem_ptr)
1219                iounmap(mem_ptr);
1220
1221        return 0;
1222}
1223
1224static u32
1225netxen_nic_hw_read_wx_128M(struct netxen_adapter *adapter, ulong off)
1226{
1227        unsigned long flags;
1228        void __iomem *addr, *mem_ptr = NULL;
1229        u32 data;
1230
1231        addr = netxen_nic_map_indirect_address_128M(adapter, off, &mem_ptr);
1232        if (!addr)
1233                return -EIO;
1234
1235        if (ADDR_IN_WINDOW1(off)) { /* Window 1 */
1236                data = netxen_nic_io_read_128M(adapter, addr);
1237        } else {        /* Window 0 */
1238                write_lock_irqsave(&adapter->ahw.crb_lock, flags);
1239                netxen_nic_pci_set_crbwindow_128M(adapter, 0);
1240                data = readl(addr);
1241                netxen_nic_pci_set_crbwindow_128M(adapter,
1242                                NETXEN_WINDOW_ONE);
1243                write_unlock_irqrestore(&adapter->ahw.crb_lock, flags);
1244        }
1245
1246        if (mem_ptr)
1247                iounmap(mem_ptr);
1248
1249        return data;
1250}
1251
1252static int
1253netxen_nic_hw_write_wx_2M(struct netxen_adapter *adapter, ulong off, u32 data)
1254{
1255        unsigned long flags;
1256        int rv;
1257        void __iomem *addr = NULL;
1258
1259        rv = netxen_nic_pci_get_crb_addr_2M(adapter, off, &addr);
1260
1261        if (rv == 0) {
1262                writel(data, addr);
1263                return 0;
1264        }
1265
1266        if (rv > 0) {
1267                /* indirect access */
1268                write_lock_irqsave(&adapter->ahw.crb_lock, flags);
1269                crb_win_lock(adapter);
1270                netxen_nic_pci_set_crbwindow_2M(adapter, off);
1271                writel(data, addr);
1272                crb_win_unlock(adapter);
1273                write_unlock_irqrestore(&adapter->ahw.crb_lock, flags);
1274                return 0;
1275        }
1276
1277        dev_err(&adapter->pdev->dev,
1278                        "%s: invalid offset: 0x%016lx\n", __func__, off);
1279        dump_stack();
1280        return -EIO;
1281}
1282
1283static u32
1284netxen_nic_hw_read_wx_2M(struct netxen_adapter *adapter, ulong off)
1285{
1286        unsigned long flags;
1287        int rv;
1288        u32 data;
1289        void __iomem *addr = NULL;
1290
1291        rv = netxen_nic_pci_get_crb_addr_2M(adapter, off, &addr);
1292
1293        if (rv == 0)
1294                return readl(addr);
1295
1296        if (rv > 0) {
1297                /* indirect access */
1298                write_lock_irqsave(&adapter->ahw.crb_lock, flags);
1299                crb_win_lock(adapter);
1300                netxen_nic_pci_set_crbwindow_2M(adapter, off);
1301                data = readl(addr);
1302                crb_win_unlock(adapter);
1303                write_unlock_irqrestore(&adapter->ahw.crb_lock, flags);
1304                return data;
1305        }
1306
1307        dev_err(&adapter->pdev->dev,
1308                        "%s: invalid offset: 0x%016lx\n", __func__, off);
1309        dump_stack();
1310        return -1;
1311}
1312
1313/* window 1 registers only */
1314static void netxen_nic_io_write_128M(struct netxen_adapter *adapter,
1315                void __iomem *addr, u32 data)
1316{
1317        read_lock(&adapter->ahw.crb_lock);
1318        writel(data, addr);
1319        read_unlock(&adapter->ahw.crb_lock);
1320}
1321
1322static u32 netxen_nic_io_read_128M(struct netxen_adapter *adapter,
1323                void __iomem *addr)
1324{
1325        u32 val;
1326
1327        read_lock(&adapter->ahw.crb_lock);
1328        val = readl(addr);
1329        read_unlock(&adapter->ahw.crb_lock);
1330
1331        return val;
1332}
1333
1334static void netxen_nic_io_write_2M(struct netxen_adapter *adapter,
1335                void __iomem *addr, u32 data)
1336{
1337        writel(data, addr);
1338}
1339
1340static u32 netxen_nic_io_read_2M(struct netxen_adapter *adapter,
1341                void __iomem *addr)
1342{
1343        return readl(addr);
1344}
1345
1346void __iomem *
1347netxen_get_ioaddr(struct netxen_adapter *adapter, u32 offset)
1348{
1349        void __iomem *addr = NULL;
1350
1351        if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1352                if ((offset < NETXEN_CRB_PCIX_HOST2) &&
1353                                (offset > NETXEN_CRB_PCIX_HOST))
1354                        addr = PCI_OFFSET_SECOND_RANGE(adapter, offset);
1355                else
1356                        addr = NETXEN_CRB_NORMALIZE(adapter, offset);
1357        } else {
1358                WARN_ON(netxen_nic_pci_get_crb_addr_2M(adapter,
1359                                        offset, &addr));
1360        }
1361
1362        return addr;
1363}
1364
1365static int
1366netxen_nic_pci_set_window_128M(struct netxen_adapter *adapter,
1367                u64 addr, u32 *start)
1368{
1369        if (ADDR_IN_RANGE(addr, NETXEN_ADDR_OCM0, NETXEN_ADDR_OCM0_MAX)) {
1370                *start = (addr - NETXEN_ADDR_OCM0  + NETXEN_PCI_OCM0);
1371                return 0;
1372        } else if (ADDR_IN_RANGE(addr,
1373                                NETXEN_ADDR_OCM1, NETXEN_ADDR_OCM1_MAX)) {
1374                *start = (addr - NETXEN_ADDR_OCM1 + NETXEN_PCI_OCM1);
1375                return 0;
1376        }
1377
1378        return -EIO;
1379}
1380
1381static int
1382netxen_nic_pci_set_window_2M(struct netxen_adapter *adapter,
1383                u64 addr, u32 *start)
1384{
1385        u32 window;
1386
1387        window = OCM_WIN(addr);
1388
1389        writel(window, adapter->ahw.ocm_win_crb);
1390        /* read back to flush */
1391        readl(adapter->ahw.ocm_win_crb);
1392
1393        adapter->ahw.ocm_win = window;
1394        *start = NETXEN_PCI_OCM0_2M + GET_MEM_OFFS_2M(addr);
1395        return 0;
1396}
1397
1398static int
1399netxen_nic_pci_mem_access_direct(struct netxen_adapter *adapter, u64 off,
1400                u64 *data, int op)
1401{
1402        void __iomem *addr, *mem_ptr = NULL;
1403        resource_size_t mem_base;
1404        int ret;
1405        u32 start;
1406
1407        spin_lock(&adapter->ahw.mem_lock);
1408
1409        ret = adapter->pci_set_window(adapter, off, &start);
1410        if (ret != 0)
1411                goto unlock;
1412
1413        if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1414                addr = adapter->ahw.pci_base0 + start;
1415        } else {
1416                addr = pci_base_offset(adapter, start);
1417                if (addr)
1418                        goto noremap;
1419
1420                mem_base = pci_resource_start(adapter->pdev, 0) +
1421                                        (start & PAGE_MASK);
1422                mem_ptr = ioremap(mem_base, PAGE_SIZE);
1423                if (mem_ptr == NULL) {
1424                        ret = -EIO;
1425                        goto unlock;
1426                }
1427
1428                addr = mem_ptr + (start & (PAGE_SIZE-1));
1429        }
1430noremap:
1431        if (op == 0)    /* read */
1432                *data = readq(addr);
1433        else            /* write */
1434                writeq(*data, addr);
1435
1436unlock:
1437        spin_unlock(&adapter->ahw.mem_lock);
1438
1439        if (mem_ptr)
1440                iounmap(mem_ptr);
1441        return ret;
1442}
1443
1444void
1445netxen_pci_camqm_read_2M(struct netxen_adapter *adapter, u64 off, u64 *data)
1446{
1447        void __iomem *addr = adapter->ahw.pci_base0 +
1448                NETXEN_PCI_CAMQM_2M_BASE + (off - NETXEN_PCI_CAMQM);
1449
1450        spin_lock(&adapter->ahw.mem_lock);
1451        *data = readq(addr);
1452        spin_unlock(&adapter->ahw.mem_lock);
1453}
1454
1455void
1456netxen_pci_camqm_write_2M(struct netxen_adapter *adapter, u64 off, u64 data)
1457{
1458        void __iomem *addr = adapter->ahw.pci_base0 +
1459                NETXEN_PCI_CAMQM_2M_BASE + (off - NETXEN_PCI_CAMQM);
1460
1461        spin_lock(&adapter->ahw.mem_lock);
1462        writeq(data, addr);
1463        spin_unlock(&adapter->ahw.mem_lock);
1464}
1465
1466#define MAX_CTL_CHECK   1000
1467
1468static int
1469netxen_nic_pci_mem_write_128M(struct netxen_adapter *adapter,
1470                u64 off, u64 data)
1471{
1472        int j, ret;
1473        u32 temp, off_lo, off_hi, addr_hi, data_hi, data_lo;
1474        void __iomem *mem_crb;
1475
1476        /* Only 64-bit aligned access */
1477        if (off & 7)
1478                return -EIO;
1479
1480        /* P2 has different SIU and MIU test agent base addr */
1481        if (ADDR_IN_RANGE(off, NETXEN_ADDR_QDR_NET,
1482                                NETXEN_ADDR_QDR_NET_MAX_P2)) {
1483                mem_crb = pci_base_offset(adapter,
1484                                NETXEN_CRB_QDR_NET+SIU_TEST_AGT_BASE);
1485                addr_hi = SIU_TEST_AGT_ADDR_HI;
1486                data_lo = SIU_TEST_AGT_WRDATA_LO;
1487                data_hi = SIU_TEST_AGT_WRDATA_HI;
1488                off_lo = off & SIU_TEST_AGT_ADDR_MASK;
1489                off_hi = SIU_TEST_AGT_UPPER_ADDR(off);
1490                goto correct;
1491        }
1492
1493        if (ADDR_IN_RANGE(off, NETXEN_ADDR_DDR_NET, NETXEN_ADDR_DDR_NET_MAX)) {
1494                mem_crb = pci_base_offset(adapter,
1495                                NETXEN_CRB_DDR_NET+MIU_TEST_AGT_BASE);
1496                addr_hi = MIU_TEST_AGT_ADDR_HI;
1497                data_lo = MIU_TEST_AGT_WRDATA_LO;
1498                data_hi = MIU_TEST_AGT_WRDATA_HI;
1499                off_lo = off & MIU_TEST_AGT_ADDR_MASK;
1500                off_hi = 0;
1501                goto correct;
1502        }
1503
1504        if (ADDR_IN_RANGE(off, NETXEN_ADDR_OCM0, NETXEN_ADDR_OCM0_MAX) ||
1505                ADDR_IN_RANGE(off, NETXEN_ADDR_OCM1, NETXEN_ADDR_OCM1_MAX)) {
1506                if (adapter->ahw.pci_len0 != 0) {
1507                        return netxen_nic_pci_mem_access_direct(adapter,
1508                                        off, &data, 1);
1509                }
1510        }
1511
1512        return -EIO;
1513
1514correct:
1515        spin_lock(&adapter->ahw.mem_lock);
1516        netxen_nic_pci_set_crbwindow_128M(adapter, 0);
1517
1518        writel(off_lo, (mem_crb + MIU_TEST_AGT_ADDR_LO));
1519        writel(off_hi, (mem_crb + addr_hi));
1520        writel(data & 0xffffffff, (mem_crb + data_lo));
1521        writel((data >> 32) & 0xffffffff, (mem_crb + data_hi));
1522        writel((TA_CTL_ENABLE | TA_CTL_WRITE), (mem_crb + TEST_AGT_CTRL));
1523        writel((TA_CTL_START | TA_CTL_ENABLE | TA_CTL_WRITE),
1524                        (mem_crb + TEST_AGT_CTRL));
1525
1526        for (j = 0; j < MAX_CTL_CHECK; j++) {
1527                temp = readl((mem_crb + TEST_AGT_CTRL));
1528                if ((temp & TA_CTL_BUSY) == 0)
1529                        break;
1530        }
1531
1532        if (j >= MAX_CTL_CHECK) {
1533                if (printk_ratelimit())
1534                        dev_err(&adapter->pdev->dev,
1535                                        "failed to write through agent\n");
1536                ret = -EIO;
1537        } else
1538                ret = 0;
1539
1540        netxen_nic_pci_set_crbwindow_128M(adapter, NETXEN_WINDOW_ONE);
1541        spin_unlock(&adapter->ahw.mem_lock);
1542        return ret;
1543}
1544
1545static int
1546netxen_nic_pci_mem_read_128M(struct netxen_adapter *adapter,
1547                u64 off, u64 *data)
1548{
1549        int j, ret;
1550        u32 temp, off_lo, off_hi, addr_hi, data_hi, data_lo;
1551        u64 val;
1552        void __iomem *mem_crb;
1553
1554        /* Only 64-bit aligned access */
1555        if (off & 7)
1556                return -EIO;
1557
1558        /* P2 has different SIU and MIU test agent base addr */
1559        if (ADDR_IN_RANGE(off, NETXEN_ADDR_QDR_NET,
1560                                NETXEN_ADDR_QDR_NET_MAX_P2)) {
1561                mem_crb = pci_base_offset(adapter,
1562                                NETXEN_CRB_QDR_NET+SIU_TEST_AGT_BASE);
1563                addr_hi = SIU_TEST_AGT_ADDR_HI;
1564                data_lo = SIU_TEST_AGT_RDDATA_LO;
1565                data_hi = SIU_TEST_AGT_RDDATA_HI;
1566                off_lo = off & SIU_TEST_AGT_ADDR_MASK;
1567                off_hi = SIU_TEST_AGT_UPPER_ADDR(off);
1568                goto correct;
1569        }
1570
1571        if (ADDR_IN_RANGE(off, NETXEN_ADDR_DDR_NET, NETXEN_ADDR_DDR_NET_MAX)) {
1572                mem_crb = pci_base_offset(adapter,
1573                                NETXEN_CRB_DDR_NET+MIU_TEST_AGT_BASE);
1574                addr_hi = MIU_TEST_AGT_ADDR_HI;
1575                data_lo = MIU_TEST_AGT_RDDATA_LO;
1576                data_hi = MIU_TEST_AGT_RDDATA_HI;
1577                off_lo = off & MIU_TEST_AGT_ADDR_MASK;
1578                off_hi = 0;
1579                goto correct;
1580        }
1581
1582        if (ADDR_IN_RANGE(off, NETXEN_ADDR_OCM0, NETXEN_ADDR_OCM0_MAX) ||
1583                ADDR_IN_RANGE(off, NETXEN_ADDR_OCM1, NETXEN_ADDR_OCM1_MAX)) {
1584                if (adapter->ahw.pci_len0 != 0) {
1585                        return netxen_nic_pci_mem_access_direct(adapter,
1586                                        off, data, 0);
1587                }
1588        }
1589
1590        return -EIO;
1591
1592correct:
1593        spin_lock(&adapter->ahw.mem_lock);
1594        netxen_nic_pci_set_crbwindow_128M(adapter, 0);
1595
1596        writel(off_lo, (mem_crb + MIU_TEST_AGT_ADDR_LO));
1597        writel(off_hi, (mem_crb + addr_hi));
1598        writel(TA_CTL_ENABLE, (mem_crb + TEST_AGT_CTRL));
1599        writel((TA_CTL_START|TA_CTL_ENABLE), (mem_crb + TEST_AGT_CTRL));
1600
1601        for (j = 0; j < MAX_CTL_CHECK; j++) {
1602                temp = readl(mem_crb + TEST_AGT_CTRL);
1603                if ((temp & TA_CTL_BUSY) == 0)
1604                        break;
1605        }
1606
1607        if (j >= MAX_CTL_CHECK) {
1608                if (printk_ratelimit())
1609                        dev_err(&adapter->pdev->dev,
1610                                        "failed to read through agent\n");
1611                ret = -EIO;
1612        } else {
1613
1614                temp = readl(mem_crb + data_hi);
1615                val = ((u64)temp << 32);
1616                val |= readl(mem_crb + data_lo);
1617                *data = val;
1618                ret = 0;
1619        }
1620
1621        netxen_nic_pci_set_crbwindow_128M(adapter, NETXEN_WINDOW_ONE);
1622        spin_unlock(&adapter->ahw.mem_lock);
1623
1624        return ret;
1625}
1626
1627static int
1628netxen_nic_pci_mem_write_2M(struct netxen_adapter *adapter,
1629                u64 off, u64 data)
1630{
1631        int j, ret;
1632        u32 temp, off8;
1633        void __iomem *mem_crb;
1634
1635        /* Only 64-bit aligned access */
1636        if (off & 7)
1637                return -EIO;
1638
1639        /* P3 onward, test agent base for MIU and SIU is same */
1640        if (ADDR_IN_RANGE(off, NETXEN_ADDR_QDR_NET,
1641                                NETXEN_ADDR_QDR_NET_MAX_P3)) {
1642                mem_crb = netxen_get_ioaddr(adapter,
1643                                NETXEN_CRB_QDR_NET+MIU_TEST_AGT_BASE);
1644                goto correct;
1645        }
1646
1647        if (ADDR_IN_RANGE(off, NETXEN_ADDR_DDR_NET, NETXEN_ADDR_DDR_NET_MAX)) {
1648                mem_crb = netxen_get_ioaddr(adapter,
1649                                NETXEN_CRB_DDR_NET+MIU_TEST_AGT_BASE);
1650                goto correct;
1651        }
1652
1653        if (ADDR_IN_RANGE(off, NETXEN_ADDR_OCM0, NETXEN_ADDR_OCM0_MAX))
1654                return netxen_nic_pci_mem_access_direct(adapter, off, &data, 1);
1655
1656        return -EIO;
1657
1658correct:
1659        off8 = off & 0xfffffff8;
1660
1661        spin_lock(&adapter->ahw.mem_lock);
1662
1663        writel(off8, (mem_crb + MIU_TEST_AGT_ADDR_LO));
1664        writel(0, (mem_crb + MIU_TEST_AGT_ADDR_HI));
1665
1666        writel(data & 0xffffffff,
1667                        mem_crb + MIU_TEST_AGT_WRDATA_LO);
1668        writel((data >> 32) & 0xffffffff,
1669                        mem_crb + MIU_TEST_AGT_WRDATA_HI);
1670
1671        writel((TA_CTL_ENABLE | TA_CTL_WRITE), (mem_crb + TEST_AGT_CTRL));
1672        writel((TA_CTL_START | TA_CTL_ENABLE | TA_CTL_WRITE),
1673                        (mem_crb + TEST_AGT_CTRL));
1674
1675        for (j = 0; j < MAX_CTL_CHECK; j++) {
1676                temp = readl(mem_crb + TEST_AGT_CTRL);
1677                if ((temp & TA_CTL_BUSY) == 0)
1678                        break;
1679        }
1680
1681        if (j >= MAX_CTL_CHECK) {
1682                if (printk_ratelimit())
1683                        dev_err(&adapter->pdev->dev,
1684                                        "failed to write through agent\n");
1685                ret = -EIO;
1686        } else
1687                ret = 0;
1688
1689        spin_unlock(&adapter->ahw.mem_lock);
1690
1691        return ret;
1692}
1693
1694static int
1695netxen_nic_pci_mem_read_2M(struct netxen_adapter *adapter,
1696                u64 off, u64 *data)
1697{
1698        int j, ret;
1699        u32 temp, off8;
1700        u64 val;
1701        void __iomem *mem_crb;
1702
1703        /* Only 64-bit aligned access */
1704        if (off & 7)
1705                return -EIO;
1706
1707        /* P3 onward, test agent base for MIU and SIU is same */
1708        if (ADDR_IN_RANGE(off, NETXEN_ADDR_QDR_NET,
1709                                NETXEN_ADDR_QDR_NET_MAX_P3)) {
1710                mem_crb = netxen_get_ioaddr(adapter,
1711                                NETXEN_CRB_QDR_NET+MIU_TEST_AGT_BASE);
1712                goto correct;
1713        }
1714
1715        if (ADDR_IN_RANGE(off, NETXEN_ADDR_DDR_NET, NETXEN_ADDR_DDR_NET_MAX)) {
1716                mem_crb = netxen_get_ioaddr(adapter,
1717                                NETXEN_CRB_DDR_NET+MIU_TEST_AGT_BASE);
1718                goto correct;
1719        }
1720
1721        if (ADDR_IN_RANGE(off, NETXEN_ADDR_OCM0, NETXEN_ADDR_OCM0_MAX)) {
1722                return netxen_nic_pci_mem_access_direct(adapter,
1723                                off, data, 0);
1724        }
1725
1726        return -EIO;
1727
1728correct:
1729        off8 = off & 0xfffffff8;
1730
1731        spin_lock(&adapter->ahw.mem_lock);
1732
1733        writel(off8, (mem_crb + MIU_TEST_AGT_ADDR_LO));
1734        writel(0, (mem_crb + MIU_TEST_AGT_ADDR_HI));
1735        writel(TA_CTL_ENABLE, (mem_crb + TEST_AGT_CTRL));
1736        writel((TA_CTL_START | TA_CTL_ENABLE), (mem_crb + TEST_AGT_CTRL));
1737
1738        for (j = 0; j < MAX_CTL_CHECK; j++) {
1739                temp = readl(mem_crb + TEST_AGT_CTRL);
1740                if ((temp & TA_CTL_BUSY) == 0)
1741                        break;
1742        }
1743
1744        if (j >= MAX_CTL_CHECK) {
1745                if (printk_ratelimit())
1746                        dev_err(&adapter->pdev->dev,
1747                                        "failed to read through agent\n");
1748                ret = -EIO;
1749        } else {
1750                val = (u64)(readl(mem_crb + MIU_TEST_AGT_RDDATA_HI)) << 32;
1751                val |= readl(mem_crb + MIU_TEST_AGT_RDDATA_LO);
1752                *data = val;
1753                ret = 0;
1754        }
1755
1756        spin_unlock(&adapter->ahw.mem_lock);
1757
1758        return ret;
1759}
1760
1761void
1762netxen_setup_hwops(struct netxen_adapter *adapter)
1763{
1764        adapter->init_port = netxen_niu_xg_init_port;
1765        adapter->stop_port = netxen_niu_disable_xg_port;
1766
1767        if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1768                adapter->crb_read = netxen_nic_hw_read_wx_128M,
1769                adapter->crb_write = netxen_nic_hw_write_wx_128M,
1770                adapter->pci_set_window = netxen_nic_pci_set_window_128M,
1771                adapter->pci_mem_read = netxen_nic_pci_mem_read_128M,
1772                adapter->pci_mem_write = netxen_nic_pci_mem_write_128M,
1773                adapter->io_read = netxen_nic_io_read_128M,
1774                adapter->io_write = netxen_nic_io_write_128M,
1775
1776                adapter->macaddr_set = netxen_p2_nic_set_mac_addr;
1777                adapter->set_multi = netxen_p2_nic_set_multi;
1778                adapter->set_mtu = netxen_nic_set_mtu_xgb;
1779                adapter->set_promisc = netxen_p2_nic_set_promisc;
1780
1781        } else {
1782                adapter->crb_read = netxen_nic_hw_read_wx_2M,
1783                adapter->crb_write = netxen_nic_hw_write_wx_2M,
1784                adapter->pci_set_window = netxen_nic_pci_set_window_2M,
1785                adapter->pci_mem_read = netxen_nic_pci_mem_read_2M,
1786                adapter->pci_mem_write = netxen_nic_pci_mem_write_2M,
1787                adapter->io_read = netxen_nic_io_read_2M,
1788                adapter->io_write = netxen_nic_io_write_2M,
1789
1790                adapter->set_mtu = nx_fw_cmd_set_mtu;
1791                adapter->set_promisc = netxen_p3_nic_set_promisc;
1792                adapter->macaddr_set = netxen_p3_nic_set_mac_addr;
1793                adapter->set_multi = netxen_p3_nic_set_multi;
1794
1795                adapter->phy_read = nx_fw_cmd_query_phy;
1796                adapter->phy_write = nx_fw_cmd_set_phy;
1797        }
1798}
1799
1800int netxen_nic_get_board_info(struct netxen_adapter *adapter)
1801{
1802        int offset, board_type, magic;
1803        struct pci_dev *pdev = adapter->pdev;
1804
1805        offset = NX_FW_MAGIC_OFFSET;
1806        if (netxen_rom_fast_read(adapter, offset, &magic))
1807                return -EIO;
1808
1809        if (magic != NETXEN_BDINFO_MAGIC) {
1810                dev_err(&pdev->dev, "invalid board config, magic=%08x\n",
1811                        magic);
1812                return -EIO;
1813        }
1814
1815        offset = NX_BRDTYPE_OFFSET;
1816        if (netxen_rom_fast_read(adapter, offset, &board_type))
1817                return -EIO;
1818
1819        if (board_type == NETXEN_BRDTYPE_P3_4_GB_MM) {
1820                u32 gpio = NXRD32(adapter, NETXEN_ROMUSB_GLB_PAD_GPIO_I);
1821                if ((gpio & 0x8000) == 0)
1822                        board_type = NETXEN_BRDTYPE_P3_10G_TP;
1823        }
1824
1825        adapter->ahw.board_type = board_type;
1826
1827        switch (board_type) {
1828        case NETXEN_BRDTYPE_P2_SB35_4G:
1829                adapter->ahw.port_type = NETXEN_NIC_GBE;
1830                break;
1831        case NETXEN_BRDTYPE_P2_SB31_10G:
1832        case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
1833        case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
1834        case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
1835        case NETXEN_BRDTYPE_P3_HMEZ:
1836        case NETXEN_BRDTYPE_P3_XG_LOM:
1837        case NETXEN_BRDTYPE_P3_10G_CX4:
1838        case NETXEN_BRDTYPE_P3_10G_CX4_LP:
1839        case NETXEN_BRDTYPE_P3_IMEZ:
1840        case NETXEN_BRDTYPE_P3_10G_SFP_PLUS:
1841        case NETXEN_BRDTYPE_P3_10G_SFP_CT:
1842        case NETXEN_BRDTYPE_P3_10G_SFP_QT:
1843        case NETXEN_BRDTYPE_P3_10G_XFP:
1844        case NETXEN_BRDTYPE_P3_10000_BASE_T:
1845                adapter->ahw.port_type = NETXEN_NIC_XGBE;
1846                break;
1847        case NETXEN_BRDTYPE_P1_BD:
1848        case NETXEN_BRDTYPE_P1_SB:
1849        case NETXEN_BRDTYPE_P1_SMAX:
1850        case NETXEN_BRDTYPE_P1_SOCK:
1851        case NETXEN_BRDTYPE_P3_REF_QG:
1852        case NETXEN_BRDTYPE_P3_4_GB:
1853        case NETXEN_BRDTYPE_P3_4_GB_MM:
1854                adapter->ahw.port_type = NETXEN_NIC_GBE;
1855                break;
1856        case NETXEN_BRDTYPE_P3_10G_TP:
1857                adapter->ahw.port_type = (adapter->portnum < 2) ?
1858                        NETXEN_NIC_XGBE : NETXEN_NIC_GBE;
1859                break;
1860        default:
1861                dev_err(&pdev->dev, "unknown board type %x\n", board_type);
1862                adapter->ahw.port_type = NETXEN_NIC_XGBE;
1863                break;
1864        }
1865
1866        return 0;
1867}
1868
1869/* NIU access sections */
1870static int netxen_nic_set_mtu_xgb(struct netxen_adapter *adapter, int new_mtu)
1871{
1872        new_mtu += MTU_FUDGE_FACTOR;
1873        if (adapter->physical_port == 0)
1874                NXWR32(adapter, NETXEN_NIU_XGE_MAX_FRAME_SIZE, new_mtu);
1875        else
1876                NXWR32(adapter, NETXEN_NIU_XG1_MAX_FRAME_SIZE, new_mtu);
1877        return 0;
1878}
1879
1880void netxen_nic_set_link_parameters(struct netxen_adapter *adapter)
1881{
1882        __u32 status;
1883        __u32 autoneg;
1884        __u32 port_mode;
1885
1886        if (!netif_carrier_ok(adapter->netdev)) {
1887                adapter->link_speed   = 0;
1888                adapter->link_duplex  = -1;
1889                adapter->link_autoneg = AUTONEG_ENABLE;
1890                return;
1891        }
1892
1893        if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
1894                port_mode = NXRD32(adapter, NETXEN_PORT_MODE_ADDR);
1895                if (port_mode == NETXEN_PORT_MODE_802_3_AP) {
1896                        adapter->link_speed   = SPEED_1000;
1897                        adapter->link_duplex  = DUPLEX_FULL;
1898                        adapter->link_autoneg = AUTONEG_DISABLE;
1899                        return;
1900                }
1901
1902                if (adapter->phy_read &&
1903                    adapter->phy_read(adapter,
1904                                      NETXEN_NIU_GB_MII_MGMT_ADDR_PHY_STATUS,
1905                                      &status) == 0) {
1906                        if (netxen_get_phy_link(status)) {
1907                                switch (netxen_get_phy_speed(status)) {
1908                                case 0:
1909                                        adapter->link_speed = SPEED_10;
1910                                        break;
1911                                case 1:
1912                                        adapter->link_speed = SPEED_100;
1913                                        break;
1914                                case 2:
1915                                        adapter->link_speed = SPEED_1000;
1916                                        break;
1917                                default:
1918                                        adapter->link_speed = 0;
1919                                        break;
1920                                }
1921                                switch (netxen_get_phy_duplex(status)) {
1922                                case 0:
1923                                        adapter->link_duplex = DUPLEX_HALF;
1924                                        break;
1925                                case 1:
1926                                        adapter->link_duplex = DUPLEX_FULL;
1927                                        break;
1928                                default:
1929                                        adapter->link_duplex = -1;
1930                                        break;
1931                                }
1932                                if (adapter->phy_read &&
1933                                    adapter->phy_read(adapter,
1934                                                      NETXEN_NIU_GB_MII_MGMT_ADDR_AUTONEG,
1935                                                      &autoneg) == 0)
1936                                        adapter->link_autoneg = autoneg;
1937                        } else
1938                                goto link_down;
1939                } else {
1940                      link_down:
1941                        adapter->link_speed = 0;
1942                        adapter->link_duplex = -1;
1943                }
1944        }
1945}
1946
1947int
1948netxen_nic_wol_supported(struct netxen_adapter *adapter)
1949{
1950        u32 wol_cfg;
1951
1952        if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
1953                return 0;
1954
1955        wol_cfg = NXRD32(adapter, NETXEN_WOL_CONFIG_NV);
1956        if (wol_cfg & (1UL << adapter->portnum)) {
1957                wol_cfg = NXRD32(adapter, NETXEN_WOL_CONFIG);
1958                if (wol_cfg & (1 << adapter->portnum))
1959                        return 1;
1960        }
1961
1962        return 0;
1963}
1964
1965static u32 netxen_md_cntrl(struct netxen_adapter *adapter,
1966                        struct netxen_minidump_template_hdr *template_hdr,
1967                        struct netxen_minidump_entry_crb *crtEntry)
1968{
1969        int loop_cnt, i, rv = 0, timeout_flag;
1970        u32 op_count, stride;
1971        u32 opcode, read_value, addr;
1972        unsigned long timeout, timeout_jiffies;
1973        addr = crtEntry->addr;
1974        op_count = crtEntry->op_count;
1975        stride = crtEntry->addr_stride;
1976
1977        for (loop_cnt = 0; loop_cnt < op_count; loop_cnt++) {
1978                for (i = 0; i < sizeof(crtEntry->opcode) * 8; i++) {
1979                        opcode = (crtEntry->opcode & (0x1 << i));
1980                        if (opcode) {
1981                                switch (opcode) {
1982                                case NX_DUMP_WCRB:
1983                                        NX_WR_DUMP_REG(addr,
1984                                                adapter->ahw.pci_base0,
1985                                                        crtEntry->value_1);
1986                                        break;
1987                                case NX_DUMP_RWCRB:
1988                                        NX_RD_DUMP_REG(addr,
1989                                                adapter->ahw.pci_base0,
1990                                                                &read_value);
1991                                        NX_WR_DUMP_REG(addr,
1992                                                adapter->ahw.pci_base0,
1993                                                                read_value);
1994                                        break;
1995                                case NX_DUMP_ANDCRB:
1996                                        NX_RD_DUMP_REG(addr,
1997                                                adapter->ahw.pci_base0,
1998                                                                &read_value);
1999                                        read_value &= crtEntry->value_2;
2000                                        NX_WR_DUMP_REG(addr,
2001                                                adapter->ahw.pci_base0,
2002                                                                read_value);
2003                                        break;
2004                                case NX_DUMP_ORCRB:
2005                                        NX_RD_DUMP_REG(addr,
2006                                                adapter->ahw.pci_base0,
2007                                                                &read_value);
2008                                        read_value |= crtEntry->value_3;
2009                                        NX_WR_DUMP_REG(addr,
2010                                                adapter->ahw.pci_base0,
2011                                                                read_value);
2012                                        break;
2013                                case NX_DUMP_POLLCRB:
2014                                        timeout = crtEntry->poll_timeout;
2015                                        NX_RD_DUMP_REG(addr,
2016                                                adapter->ahw.pci_base0,
2017                                                                &read_value);
2018                                        timeout_jiffies =
2019                                        msecs_to_jiffies(timeout) + jiffies;
2020                                        for (timeout_flag = 0;
2021                                                !timeout_flag
2022                                        && ((read_value & crtEntry->value_2)
2023                                        != crtEntry->value_1);) {
2024                                                if (time_after(jiffies,
2025                                                        timeout_jiffies))
2026                                                        timeout_flag = 1;
2027                                        NX_RD_DUMP_REG(addr,
2028                                                        adapter->ahw.pci_base0,
2029                                                                &read_value);
2030                                        }
2031
2032                                        if (timeout_flag) {
2033                                                dev_err(&adapter->pdev->dev, "%s : "
2034                                                        "Timeout in poll_crb control operation.\n"
2035                                                                , __func__);
2036                                                return -1;
2037                                        }
2038                                        break;
2039                                case NX_DUMP_RD_SAVE:
2040                                        /* Decide which address to use */
2041                                        if (crtEntry->state_index_a)
2042                                                addr =
2043                                                template_hdr->saved_state_array
2044                                                [crtEntry->state_index_a];
2045                                        NX_RD_DUMP_REG(addr,
2046                                                adapter->ahw.pci_base0,
2047                                                                &read_value);
2048                                        template_hdr->saved_state_array
2049                                        [crtEntry->state_index_v]
2050                                                = read_value;
2051                                        break;
2052                                case NX_DUMP_WRT_SAVED:
2053                                        /* Decide which value to use */
2054                                        if (crtEntry->state_index_v)
2055                                                read_value =
2056                                                template_hdr->saved_state_array
2057                                                [crtEntry->state_index_v];
2058                                        else
2059                                                read_value = crtEntry->value_1;
2060
2061                                        /* Decide which address to use */
2062                                        if (crtEntry->state_index_a)
2063                                                addr =
2064                                                template_hdr->saved_state_array
2065                                                [crtEntry->state_index_a];
2066
2067                                        NX_WR_DUMP_REG(addr,
2068                                                adapter->ahw.pci_base0,
2069                                                                read_value);
2070                                        break;
2071                                case NX_DUMP_MOD_SAVE_ST:
2072                                        read_value =
2073                                        template_hdr->saved_state_array
2074                                                [crtEntry->state_index_v];
2075                                        read_value <<= crtEntry->shl;
2076                                        read_value >>= crtEntry->shr;
2077                                        if (crtEntry->value_2)
2078                                                read_value &=
2079                                                crtEntry->value_2;
2080                                        read_value |= crtEntry->value_3;
2081                                        read_value += crtEntry->value_1;
2082                                        /* Write value back to state area.*/
2083                                        template_hdr->saved_state_array
2084                                                [crtEntry->state_index_v]
2085                                                        = read_value;
2086                                        break;
2087                                default:
2088                                        rv = 1;
2089                                        break;
2090                                }
2091                        }
2092                }
2093                addr = addr + stride;
2094        }
2095        return rv;
2096}
2097
2098/* Read memory or MN */
2099static u32
2100netxen_md_rdmem(struct netxen_adapter *adapter,
2101                struct netxen_minidump_entry_rdmem
2102                        *memEntry, u64 *data_buff)
2103{
2104        u64 addr, value = 0;
2105        int i = 0, loop_cnt;
2106
2107        addr = (u64)memEntry->read_addr;
2108        loop_cnt = memEntry->read_data_size;    /* This is size in bytes */
2109        loop_cnt /= sizeof(value);
2110
2111        for (i = 0; i < loop_cnt; i++) {
2112                if (netxen_nic_pci_mem_read_2M(adapter, addr, &value))
2113                        goto out;
2114                *data_buff++ = value;
2115                addr += sizeof(value);
2116        }
2117out:
2118        return i * sizeof(value);
2119}
2120
2121/* Read CRB operation */
2122static u32 netxen_md_rd_crb(struct netxen_adapter *adapter,
2123                        struct netxen_minidump_entry_crb
2124                                *crbEntry, u32 *data_buff)
2125{
2126        int loop_cnt;
2127        u32 op_count, addr, stride, value;
2128
2129        addr = crbEntry->addr;
2130        op_count = crbEntry->op_count;
2131        stride = crbEntry->addr_stride;
2132
2133        for (loop_cnt = 0; loop_cnt < op_count; loop_cnt++) {
2134                NX_RD_DUMP_REG(addr, adapter->ahw.pci_base0, &value);
2135                *data_buff++ = addr;
2136                *data_buff++ = value;
2137                addr = addr + stride;
2138        }
2139        return loop_cnt * (2 * sizeof(u32));
2140}
2141
2142/* Read ROM */
2143static u32
2144netxen_md_rdrom(struct netxen_adapter *adapter,
2145                        struct netxen_minidump_entry_rdrom
2146                                *romEntry, __le32 *data_buff)
2147{
2148        int i, count = 0;
2149        u32 size, lck_val;
2150        u32 val;
2151        u32 fl_addr, waddr, raddr;
2152        fl_addr = romEntry->read_addr;
2153        size = romEntry->read_data_size/4;
2154lock_try:
2155        lck_val = readl((void __iomem *)(adapter->ahw.pci_base0 +
2156                                                        NX_FLASH_SEM2_LK));
2157        if (!lck_val && count < MAX_CTL_CHECK) {
2158                msleep(20);
2159                count++;
2160                goto lock_try;
2161        }
2162        writel(adapter->ahw.pci_func, (void __iomem *)(adapter->ahw.pci_base0 +
2163                                                        NX_FLASH_LOCK_ID));
2164        for (i = 0; i < size; i++) {
2165                waddr = fl_addr & 0xFFFF0000;
2166                NX_WR_DUMP_REG(FLASH_ROM_WINDOW, adapter->ahw.pci_base0, waddr);
2167                raddr = FLASH_ROM_DATA + (fl_addr & 0x0000FFFF);
2168                NX_RD_DUMP_REG(raddr, adapter->ahw.pci_base0, &val);
2169                *data_buff++ = cpu_to_le32(val);
2170                fl_addr += sizeof(val);
2171        }
2172        readl((void __iomem *)(adapter->ahw.pci_base0 + NX_FLASH_SEM2_ULK));
2173        return romEntry->read_data_size;
2174}
2175
2176/* Handle L2 Cache */
2177static u32
2178netxen_md_L2Cache(struct netxen_adapter *adapter,
2179                                struct netxen_minidump_entry_cache
2180                                        *cacheEntry, u32 *data_buff)
2181{
2182        int loop_cnt, i, k, timeout_flag = 0;
2183        u32 addr, read_addr, read_value, cntrl_addr, tag_reg_addr;
2184        u32 tag_value, read_cnt;
2185        u8 cntl_value_w, cntl_value_r;
2186        unsigned long timeout, timeout_jiffies;
2187
2188        loop_cnt = cacheEntry->op_count;
2189        read_addr = cacheEntry->read_addr;
2190        cntrl_addr = cacheEntry->control_addr;
2191        cntl_value_w = (u32) cacheEntry->write_value;
2192        tag_reg_addr = cacheEntry->tag_reg_addr;
2193        tag_value = cacheEntry->init_tag_value;
2194        read_cnt = cacheEntry->read_addr_cnt;
2195
2196        for (i = 0; i < loop_cnt; i++) {
2197                NX_WR_DUMP_REG(tag_reg_addr, adapter->ahw.pci_base0, tag_value);
2198                if (cntl_value_w)
2199                        NX_WR_DUMP_REG(cntrl_addr, adapter->ahw.pci_base0,
2200                                        (u32)cntl_value_w);
2201                if (cacheEntry->poll_mask) {
2202                        timeout = cacheEntry->poll_wait;
2203                        NX_RD_DUMP_REG(cntrl_addr, adapter->ahw.pci_base0,
2204                                                        &cntl_value_r);
2205                        timeout_jiffies = msecs_to_jiffies(timeout) + jiffies;
2206                        for (timeout_flag = 0; !timeout_flag &&
2207                        ((cntl_value_r & cacheEntry->poll_mask) != 0);) {
2208                                if (time_after(jiffies, timeout_jiffies))
2209                                        timeout_flag = 1;
2210                                NX_RD_DUMP_REG(cntrl_addr,
2211                                        adapter->ahw.pci_base0,
2212                                                        &cntl_value_r);
2213                        }
2214                        if (timeout_flag) {
2215                                dev_err(&adapter->pdev->dev,
2216                                                "Timeout in processing L2 Tag poll.\n");
2217                                return -1;
2218                        }
2219                }
2220                addr = read_addr;
2221                for (k = 0; k < read_cnt; k++) {
2222                        NX_RD_DUMP_REG(addr, adapter->ahw.pci_base0,
2223                                        &read_value);
2224                        *data_buff++ = read_value;
2225                        addr += cacheEntry->read_addr_stride;
2226                }
2227                tag_value += cacheEntry->tag_value_stride;
2228        }
2229        return read_cnt * loop_cnt * sizeof(read_value);
2230}
2231
2232
2233/* Handle L1 Cache */
2234static u32 netxen_md_L1Cache(struct netxen_adapter *adapter,
2235                                struct netxen_minidump_entry_cache
2236                                        *cacheEntry, u32 *data_buff)
2237{
2238        int i, k, loop_cnt;
2239        u32 addr, read_addr, read_value, cntrl_addr, tag_reg_addr;
2240        u32 tag_value, read_cnt;
2241        u8 cntl_value_w;
2242
2243        loop_cnt = cacheEntry->op_count;
2244        read_addr = cacheEntry->read_addr;
2245        cntrl_addr = cacheEntry->control_addr;
2246        cntl_value_w = (u32) cacheEntry->write_value;
2247        tag_reg_addr = cacheEntry->tag_reg_addr;
2248        tag_value = cacheEntry->init_tag_value;
2249        read_cnt = cacheEntry->read_addr_cnt;
2250
2251        for (i = 0; i < loop_cnt; i++) {
2252                NX_WR_DUMP_REG(tag_reg_addr, adapter->ahw.pci_base0, tag_value);
2253                NX_WR_DUMP_REG(cntrl_addr, adapter->ahw.pci_base0,
2254                                                (u32) cntl_value_w);
2255                addr = read_addr;
2256                for (k = 0; k < read_cnt; k++) {
2257                        NX_RD_DUMP_REG(addr,
2258                                adapter->ahw.pci_base0,
2259                                                &read_value);
2260                        *data_buff++ = read_value;
2261                        addr += cacheEntry->read_addr_stride;
2262                }
2263                tag_value += cacheEntry->tag_value_stride;
2264        }
2265        return read_cnt * loop_cnt * sizeof(read_value);
2266}
2267
2268/* Reading OCM memory */
2269static u32
2270netxen_md_rdocm(struct netxen_adapter *adapter,
2271                                struct netxen_minidump_entry_rdocm
2272                                        *ocmEntry, u32 *data_buff)
2273{
2274        int i, loop_cnt;
2275        u32 value;
2276        void __iomem *addr;
2277        addr = (ocmEntry->read_addr + adapter->ahw.pci_base0);
2278        loop_cnt = ocmEntry->op_count;
2279
2280        for (i = 0; i < loop_cnt; i++) {
2281                value = readl(addr);
2282                *data_buff++ = value;
2283                addr += ocmEntry->read_addr_stride;
2284        }
2285        return i * sizeof(u32);
2286}
2287
2288/* Read MUX data */
2289static u32
2290netxen_md_rdmux(struct netxen_adapter *adapter, struct netxen_minidump_entry_mux
2291                                        *muxEntry, u32 *data_buff)
2292{
2293        int loop_cnt = 0;
2294        u32 read_addr, read_value, select_addr, sel_value;
2295
2296        read_addr = muxEntry->read_addr;
2297        sel_value = muxEntry->select_value;
2298        select_addr = muxEntry->select_addr;
2299
2300        for (loop_cnt = 0; loop_cnt < muxEntry->op_count; loop_cnt++) {
2301                NX_WR_DUMP_REG(select_addr, adapter->ahw.pci_base0, sel_value);
2302                NX_RD_DUMP_REG(read_addr, adapter->ahw.pci_base0, &read_value);
2303                *data_buff++ = sel_value;
2304                *data_buff++ = read_value;
2305                sel_value += muxEntry->select_value_stride;
2306        }
2307        return loop_cnt * (2 * sizeof(u32));
2308}
2309
2310/* Handling Queue State Reads */
2311static u32
2312netxen_md_rdqueue(struct netxen_adapter *adapter,
2313                                struct netxen_minidump_entry_queue
2314                                        *queueEntry, u32 *data_buff)
2315{
2316        int loop_cnt, k;
2317        u32 queue_id, read_addr, read_value, read_stride, select_addr, read_cnt;
2318
2319        read_cnt = queueEntry->read_addr_cnt;
2320        read_stride = queueEntry->read_addr_stride;
2321        select_addr = queueEntry->select_addr;
2322
2323        for (loop_cnt = 0, queue_id = 0; loop_cnt < queueEntry->op_count;
2324                                 loop_cnt++) {
2325                NX_WR_DUMP_REG(select_addr, adapter->ahw.pci_base0, queue_id);
2326                read_addr = queueEntry->read_addr;
2327                for (k = 0; k < read_cnt; k--) {
2328                        NX_RD_DUMP_REG(read_addr, adapter->ahw.pci_base0,
2329                                                        &read_value);
2330                        *data_buff++ = read_value;
2331                        read_addr += read_stride;
2332                }
2333                queue_id += queueEntry->queue_id_stride;
2334        }
2335        return loop_cnt * (read_cnt * sizeof(read_value));
2336}
2337
2338
2339/*
2340* We catch an error where driver does not read
2341* as much data as we expect from the entry.
2342*/
2343
2344static int netxen_md_entry_err_chk(struct netxen_adapter *adapter,
2345                                struct netxen_minidump_entry *entry, int esize)
2346{
2347        if (esize < 0) {
2348                entry->hdr.driver_flags |= NX_DUMP_SKIP;
2349                return esize;
2350        }
2351        if (esize != entry->hdr.entry_capture_size) {
2352                entry->hdr.entry_capture_size = esize;
2353                entry->hdr.driver_flags |= NX_DUMP_SIZE_ERR;
2354                dev_info(&adapter->pdev->dev,
2355                        "Invalidate dump, Type:%d\tMask:%d\tSize:%dCap_size:%d\n",
2356                        entry->hdr.entry_type, entry->hdr.entry_capture_mask,
2357                        esize, entry->hdr.entry_capture_size);
2358                dev_info(&adapter->pdev->dev, "Aborting further dump capture\n");
2359        }
2360        return 0;
2361}
2362
2363static int netxen_parse_md_template(struct netxen_adapter *adapter)
2364{
2365        int num_of_entries, buff_level, e_cnt, esize;
2366        int end_cnt = 0, rv = 0, sane_start = 0, sane_end = 0;
2367        char *dbuff;
2368        void *template_buff = adapter->mdump.md_template;
2369        char *dump_buff = adapter->mdump.md_capture_buff;
2370        int capture_mask = adapter->mdump.md_capture_mask;
2371        struct netxen_minidump_template_hdr *template_hdr;
2372        struct netxen_minidump_entry *entry;
2373
2374        if ((capture_mask & 0x3) != 0x3) {
2375                dev_err(&adapter->pdev->dev, "Capture mask %02x below minimum needed "
2376                        "for valid firmware dump\n", capture_mask);
2377                return -EINVAL;
2378        }
2379        template_hdr = (struct netxen_minidump_template_hdr *) template_buff;
2380        num_of_entries = template_hdr->num_of_entries;
2381        entry = (struct netxen_minidump_entry *) ((char *) template_buff +
2382                                template_hdr->first_entry_offset);
2383        memcpy(dump_buff, template_buff, adapter->mdump.md_template_size);
2384        dump_buff = dump_buff + adapter->mdump.md_template_size;
2385
2386        if (template_hdr->entry_type == TLHDR)
2387                sane_start = 1;
2388
2389        for (e_cnt = 0, buff_level = 0; e_cnt < num_of_entries; e_cnt++) {
2390                if (!(entry->hdr.entry_capture_mask & capture_mask)) {
2391                        entry->hdr.driver_flags |= NX_DUMP_SKIP;
2392                        entry = (struct netxen_minidump_entry *)
2393                                ((char *) entry + entry->hdr.entry_size);
2394                        continue;
2395                }
2396                switch (entry->hdr.entry_type) {
2397                case RDNOP:
2398                        entry->hdr.driver_flags |= NX_DUMP_SKIP;
2399                        break;
2400                case RDEND:
2401                        entry->hdr.driver_flags |= NX_DUMP_SKIP;
2402                        if (!sane_end)
2403                                end_cnt = e_cnt;
2404                        sane_end += 1;
2405                        break;
2406                case CNTRL:
2407                        rv = netxen_md_cntrl(adapter,
2408                                template_hdr, (void *)entry);
2409                        if (rv)
2410                                entry->hdr.driver_flags |= NX_DUMP_SKIP;
2411                        break;
2412                case RDCRB:
2413                        dbuff = dump_buff + buff_level;
2414                        esize = netxen_md_rd_crb(adapter,
2415                                        (void *) entry, (void *) dbuff);
2416                        rv = netxen_md_entry_err_chk
2417                                (adapter, entry, esize);
2418                        if (rv < 0)
2419                                break;
2420                        buff_level += esize;
2421                        break;
2422                case RDMN:
2423                case RDMEM:
2424                        dbuff = dump_buff + buff_level;
2425                        esize = netxen_md_rdmem(adapter,
2426                                (void *) entry, (void *) dbuff);
2427                        rv = netxen_md_entry_err_chk
2428                                (adapter, entry, esize);
2429                        if (rv < 0)
2430                                break;
2431                        buff_level += esize;
2432                        break;
2433                case BOARD:
2434                case RDROM:
2435                        dbuff = dump_buff + buff_level;
2436                        esize = netxen_md_rdrom(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 L2ITG:
2445                case L2DTG:
2446                case L2DAT:
2447                case L2INS:
2448                        dbuff = dump_buff + buff_level;
2449                        esize = netxen_md_L2Cache(adapter,
2450                                (void *) entry, (void *) dbuff);
2451                        rv = netxen_md_entry_err_chk
2452                                (adapter, entry, esize);
2453                        if (rv < 0)
2454                                break;
2455                        buff_level += esize;
2456                        break;
2457                case L1DAT:
2458                case L1INS:
2459                        dbuff = dump_buff + buff_level;
2460                        esize = netxen_md_L1Cache(adapter,
2461                                (void *) entry, (void *) dbuff);
2462                        rv = netxen_md_entry_err_chk
2463                                (adapter, entry, esize);
2464                        if (rv < 0)
2465                                break;
2466                        buff_level += esize;
2467                        break;
2468                case RDOCM:
2469                        dbuff = dump_buff + buff_level;
2470                        esize = netxen_md_rdocm(adapter,
2471                                (void *) entry, (void *) dbuff);
2472                        rv = netxen_md_entry_err_chk
2473                                (adapter, entry, esize);
2474                        if (rv < 0)
2475                                break;
2476                        buff_level += esize;
2477                        break;
2478                case RDMUX:
2479                        dbuff = dump_buff + buff_level;
2480                        esize = netxen_md_rdmux(adapter,
2481                                (void *) entry, (void *) dbuff);
2482                        rv = netxen_md_entry_err_chk
2483                                (adapter, entry, esize);
2484                        if (rv < 0)
2485                                break;
2486                        buff_level += esize;
2487                        break;
2488                case QUEUE:
2489                        dbuff = dump_buff + buff_level;
2490                        esize = netxen_md_rdqueue(adapter,
2491                                (void *) entry, (void *) dbuff);
2492                        rv = netxen_md_entry_err_chk
2493                                (adapter, entry, esize);
2494                        if (rv  < 0)
2495                                break;
2496                        buff_level += esize;
2497                        break;
2498                default:
2499                        entry->hdr.driver_flags |= NX_DUMP_SKIP;
2500                        break;
2501                }
2502                /* Next entry in the template */
2503                entry = (struct netxen_minidump_entry *)
2504                        ((char *) entry + entry->hdr.entry_size);
2505        }
2506        if (!sane_start || sane_end > 1) {
2507                dev_err(&adapter->pdev->dev,
2508                                "Firmware minidump template configuration error.\n");
2509        }
2510        return 0;
2511}
2512
2513static int
2514netxen_collect_minidump(struct netxen_adapter *adapter)
2515{
2516        int ret = 0;
2517        struct netxen_minidump_template_hdr *hdr;
2518        struct timespec val;
2519        hdr = (struct netxen_minidump_template_hdr *)
2520                                adapter->mdump.md_template;
2521        hdr->driver_capture_mask = adapter->mdump.md_capture_mask;
2522        jiffies_to_timespec(jiffies, &val);
2523        hdr->driver_timestamp = (u32) val.tv_sec;
2524        hdr->driver_info_word2 = adapter->fw_version;
2525        hdr->driver_info_word3 = NXRD32(adapter, CRB_DRIVER_VERSION);
2526        ret = netxen_parse_md_template(adapter);
2527        if (ret)
2528                return ret;
2529
2530        return ret;
2531}
2532
2533
2534void
2535netxen_dump_fw(struct netxen_adapter *adapter)
2536{
2537        struct netxen_minidump_template_hdr *hdr;
2538        int i, k, data_size = 0;
2539        u32 capture_mask;
2540        hdr = (struct netxen_minidump_template_hdr *)
2541                                adapter->mdump.md_template;
2542        capture_mask = adapter->mdump.md_capture_mask;
2543
2544        for (i = 0x2, k = 1; (i & NX_DUMP_MASK_MAX); i <<= 1, k++) {
2545                if (i & capture_mask)
2546                        data_size += hdr->capture_size_array[k];
2547        }
2548        if (!data_size) {
2549                dev_err(&adapter->pdev->dev,
2550                                "Invalid cap sizes for capture_mask=0x%x\n",
2551                        adapter->mdump.md_capture_mask);
2552                return;
2553        }
2554        adapter->mdump.md_capture_size = data_size;
2555        adapter->mdump.md_dump_size = adapter->mdump.md_template_size +
2556                                        adapter->mdump.md_capture_size;
2557        if (!adapter->mdump.md_capture_buff) {
2558                adapter->mdump.md_capture_buff =
2559                                vzalloc(adapter->mdump.md_dump_size);
2560                if (!adapter->mdump.md_capture_buff)
2561                        return;
2562
2563                if (netxen_collect_minidump(adapter)) {
2564                        adapter->mdump.has_valid_dump = 0;
2565                        adapter->mdump.md_dump_size = 0;
2566                        vfree(adapter->mdump.md_capture_buff);
2567                        adapter->mdump.md_capture_buff = NULL;
2568                        dev_err(&adapter->pdev->dev,
2569                                "Error in collecting firmware minidump.\n");
2570                } else {
2571                        adapter->mdump.md_timestamp = jiffies;
2572                        adapter->mdump.has_valid_dump = 1;
2573                        adapter->fw_mdump_rdy = 1;
2574                        dev_info(&adapter->pdev->dev, "%s Successfully "
2575                                "collected fw dump.\n", adapter->netdev->name);
2576                }
2577
2578        } else {
2579                dev_info(&adapter->pdev->dev,
2580                                        "Cannot overwrite previously collected "
2581                                                        "firmware minidump.\n");
2582                adapter->fw_mdump_rdy = 1;
2583                return;
2584        }
2585}
2586