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, write to the Free Software
  18 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
  19 * MA  02111-1307, USA.
  20 *
  21 * The full GNU General Public License is included in this distribution
  22 * in the file called "COPYING".
  23 *
  24 */
  25
  26#include <linux/slab.h>
  27#include "netxen_nic.h"
  28#include "netxen_nic_hw.h"
  29
  30#include <net/ip.h>
  31
  32#define MASK(n) ((1ULL<<(n))-1)
  33#define MN_WIN(addr) (((addr & 0x1fc0000) >> 1) | ((addr >> 25) & 0x3ff))
  34#define OCM_WIN(addr) (((addr & 0x1ff0000) >> 1) | ((addr >> 25) & 0x3ff))
  35#define MS_WIN(addr) (addr & 0x0ffc0000)
  36
  37#define GET_MEM_OFFS_2M(addr) (addr & MASK(18))
  38
  39#define CRB_BLK(off)    ((off >> 20) & 0x3f)
  40#define CRB_SUBBLK(off) ((off >> 16) & 0xf)
  41#define CRB_WINDOW_2M   (0x130060)
  42#define CRB_HI(off)     ((crb_hub_agt[CRB_BLK(off)] << 20) | ((off) & 0xf0000))
  43#define CRB_INDIRECT_2M (0x1e0000UL)
  44
  45static void netxen_nic_io_write_128M(struct netxen_adapter *adapter,
  46                void __iomem *addr, u32 data);
  47static u32 netxen_nic_io_read_128M(struct netxen_adapter *adapter,
  48                void __iomem *addr);
  49#ifndef readq
  50static inline u64 readq(void __iomem *addr)
  51{
  52        return readl(addr) | (((u64) readl(addr + 4)) << 32LL);
  53}
  54#endif
  55
  56#ifndef writeq
  57static inline void writeq(u64 val, void __iomem *addr)
  58{
  59        writel(((u32) (val)), (addr));
  60        writel(((u32) (val >> 32)), (addr + 4));
  61}
  62#endif
  63
  64#define PCI_OFFSET_FIRST_RANGE(adapter, off)    \
  65        ((adapter)->ahw.pci_base0 + (off))
  66#define PCI_OFFSET_SECOND_RANGE(adapter, off)   \
  67        ((adapter)->ahw.pci_base1 + (off) - SECOND_PAGE_GROUP_START)
  68#define PCI_OFFSET_THIRD_RANGE(adapter, off)    \
  69        ((adapter)->ahw.pci_base2 + (off) - THIRD_PAGE_GROUP_START)
  70
  71static void __iomem *pci_base_offset(struct netxen_adapter *adapter,
  72                                            unsigned long off)
  73{
  74        if (ADDR_IN_RANGE(off, FIRST_PAGE_GROUP_START, FIRST_PAGE_GROUP_END))
  75                return PCI_OFFSET_FIRST_RANGE(adapter, off);
  76
  77        if (ADDR_IN_RANGE(off, SECOND_PAGE_GROUP_START, SECOND_PAGE_GROUP_END))
  78                return PCI_OFFSET_SECOND_RANGE(adapter, off);
  79
  80        if (ADDR_IN_RANGE(off, THIRD_PAGE_GROUP_START, THIRD_PAGE_GROUP_END))
  81                return PCI_OFFSET_THIRD_RANGE(adapter, off);
  82
  83        return NULL;
  84}
  85
  86static crb_128M_2M_block_map_t
  87crb_128M_2M_map[64] __cacheline_aligned_in_smp = {
  88    {{{0, 0,         0,         0} } },         /* 0: PCI */
  89    {{{1, 0x0100000, 0x0102000, 0x120000},      /* 1: PCIE */
  90          {1, 0x0110000, 0x0120000, 0x130000},
  91          {1, 0x0120000, 0x0122000, 0x124000},
  92          {1, 0x0130000, 0x0132000, 0x126000},
  93          {1, 0x0140000, 0x0142000, 0x128000},
  94          {1, 0x0150000, 0x0152000, 0x12a000},
  95          {1, 0x0160000, 0x0170000, 0x110000},
  96          {1, 0x0170000, 0x0172000, 0x12e000},
  97          {0, 0x0000000, 0x0000000, 0x000000},
  98          {0, 0x0000000, 0x0000000, 0x000000},
  99          {0, 0x0000000, 0x0000000, 0x000000},
 100          {0, 0x0000000, 0x0000000, 0x000000},
 101          {0, 0x0000000, 0x0000000, 0x000000},
 102          {0, 0x0000000, 0x0000000, 0x000000},
 103          {1, 0x01e0000, 0x01e0800, 0x122000},
 104          {0, 0x0000000, 0x0000000, 0x000000} } },
 105        {{{1, 0x0200000, 0x0210000, 0x180000} } },/* 2: MN */
 106    {{{0, 0,         0,         0} } },     /* 3: */
 107    {{{1, 0x0400000, 0x0401000, 0x169000} } },/* 4: P2NR1 */
 108    {{{1, 0x0500000, 0x0510000, 0x140000} } },/* 5: SRE   */
 109    {{{1, 0x0600000, 0x0610000, 0x1c0000} } },/* 6: NIU   */
 110    {{{1, 0x0700000, 0x0704000, 0x1b8000} } },/* 7: QM    */
 111    {{{1, 0x0800000, 0x0802000, 0x170000},  /* 8: SQM0  */
 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      {0, 0x0000000, 0x0000000, 0x000000},
 125      {0, 0x0000000, 0x0000000, 0x000000},
 126      {1, 0x08f0000, 0x08f2000, 0x172000} } },
 127    {{{1, 0x0900000, 0x0902000, 0x174000},      /* 9: SQM1*/
 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      {0, 0x0000000, 0x0000000, 0x000000},
 141      {0, 0x0000000, 0x0000000, 0x000000},
 142      {1, 0x09f0000, 0x09f2000, 0x176000} } },
 143    {{{0, 0x0a00000, 0x0a02000, 0x178000},      /* 10: SQM2*/
 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      {0, 0x0000000, 0x0000000, 0x000000},
 157      {0, 0x0000000, 0x0000000, 0x000000},
 158      {1, 0x0af0000, 0x0af2000, 0x17a000} } },
 159    {{{0, 0x0b00000, 0x0b02000, 0x17c000},      /* 11: SQM3*/
 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      {0, 0x0000000, 0x0000000, 0x000000},
 173      {0, 0x0000000, 0x0000000, 0x000000},
 174      {1, 0x0bf0000, 0x0bf2000, 0x17e000} } },
 175        {{{1, 0x0c00000, 0x0c04000, 0x1d4000} } },/* 12: I2Q */
 176        {{{1, 0x0d00000, 0x0d04000, 0x1a4000} } },/* 13: TMR */
 177        {{{1, 0x0e00000, 0x0e04000, 0x1a0000} } },/* 14: ROMUSB */
 178        {{{1, 0x0f00000, 0x0f01000, 0x164000} } },/* 15: PEG4 */
 179        {{{0, 0x1000000, 0x1004000, 0x1a8000} } },/* 16: XDMA */
 180        {{{1, 0x1100000, 0x1101000, 0x160000} } },/* 17: PEG0 */
 181        {{{1, 0x1200000, 0x1201000, 0x161000} } },/* 18: PEG1 */
 182        {{{1, 0x1300000, 0x1301000, 0x162000} } },/* 19: PEG2 */
 183        {{{1, 0x1400000, 0x1401000, 0x163000} } },/* 20: PEG3 */
 184        {{{1, 0x1500000, 0x1501000, 0x165000} } },/* 21: P2ND */
 185        {{{1, 0x1600000, 0x1601000, 0x166000} } },/* 22: P2NI */
 186        {{{0, 0,         0,         0} } },     /* 23: */
 187        {{{0, 0,         0,         0} } },     /* 24: */
 188        {{{0, 0,         0,         0} } },     /* 25: */
 189        {{{0, 0,         0,         0} } },     /* 26: */
 190        {{{0, 0,         0,         0} } },     /* 27: */
 191        {{{0, 0,         0,         0} } },     /* 28: */
 192        {{{1, 0x1d00000, 0x1d10000, 0x190000} } },/* 29: MS */
 193    {{{1, 0x1e00000, 0x1e01000, 0x16a000} } },/* 30: P2NR2 */
 194    {{{1, 0x1f00000, 0x1f10000, 0x150000} } },/* 31: EPG */
 195        {{{0} } },                              /* 32: PCI */
 196        {{{1, 0x2100000, 0x2102000, 0x120000},  /* 33: PCIE */
 197          {1, 0x2110000, 0x2120000, 0x130000},
 198          {1, 0x2120000, 0x2122000, 0x124000},
 199          {1, 0x2130000, 0x2132000, 0x126000},
 200          {1, 0x2140000, 0x2142000, 0x128000},
 201          {1, 0x2150000, 0x2152000, 0x12a000},
 202          {1, 0x2160000, 0x2170000, 0x110000},
 203          {1, 0x2170000, 0x2172000, 0x12e000},
 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          {0, 0x0000000, 0x0000000, 0x000000},
 211          {0, 0x0000000, 0x0000000, 0x000000} } },
 212        {{{1, 0x2200000, 0x2204000, 0x1b0000} } },/* 34: CAM */
 213        {{{0} } },                              /* 35: */
 214        {{{0} } },                              /* 36: */
 215        {{{0} } },                              /* 37: */
 216        {{{0} } },                              /* 38: */
 217        {{{0} } },                              /* 39: */
 218        {{{1, 0x2800000, 0x2804000, 0x1a4000} } },/* 40: TMR */
 219        {{{1, 0x2900000, 0x2901000, 0x16b000} } },/* 41: P2NR3 */
 220        {{{1, 0x2a00000, 0x2a00400, 0x1ac400} } },/* 42: RPMX1 */
 221        {{{1, 0x2b00000, 0x2b00400, 0x1ac800} } },/* 43: RPMX2 */
 222        {{{1, 0x2c00000, 0x2c00400, 0x1acc00} } },/* 44: RPMX3 */
 223        {{{1, 0x2d00000, 0x2d00400, 0x1ad000} } },/* 45: RPMX4 */
 224        {{{1, 0x2e00000, 0x2e00400, 0x1ad400} } },/* 46: RPMX5 */
 225        {{{1, 0x2f00000, 0x2f00400, 0x1ad800} } },/* 47: RPMX6 */
 226        {{{1, 0x3000000, 0x3000400, 0x1adc00} } },/* 48: RPMX7 */
 227        {{{0, 0x3100000, 0x3104000, 0x1a8000} } },/* 49: XDMA */
 228        {{{1, 0x3200000, 0x3204000, 0x1d4000} } },/* 50: I2Q */
 229        {{{1, 0x3300000, 0x3304000, 0x1a0000} } },/* 51: ROMUSB */
 230        {{{0} } },                              /* 52: */
 231        {{{1, 0x3500000, 0x3500400, 0x1ac000} } },/* 53: RPMX0 */
 232        {{{1, 0x3600000, 0x3600400, 0x1ae000} } },/* 54: RPMX8 */
 233        {{{1, 0x3700000, 0x3700400, 0x1ae400} } },/* 55: RPMX9 */
 234        {{{1, 0x3800000, 0x3804000, 0x1d0000} } },/* 56: OCM0 */
 235        {{{1, 0x3900000, 0x3904000, 0x1b4000} } },/* 57: CRYPTO */
 236        {{{1, 0x3a00000, 0x3a04000, 0x1d8000} } },/* 58: SMB */
 237        {{{0} } },                              /* 59: I2C0 */
 238        {{{0} } },                              /* 60: I2C1 */
 239        {{{1, 0x3d00000, 0x3d04000, 0x1d8000} } },/* 61: LPC */
 240        {{{1, 0x3e00000, 0x3e01000, 0x167000} } },/* 62: P2NC */
 241        {{{1, 0x3f00000, 0x3f01000, 0x168000} } }       /* 63: P2NR0 */
 242};
 243
 244/*
 245 * top 12 bits of crb internal address (hub, agent)
 246 */
 247static unsigned crb_hub_agt[64] =
 248{
 249        0,
 250        NETXEN_HW_CRB_HUB_AGT_ADR_PS,
 251        NETXEN_HW_CRB_HUB_AGT_ADR_MN,
 252        NETXEN_HW_CRB_HUB_AGT_ADR_MS,
 253        0,
 254        NETXEN_HW_CRB_HUB_AGT_ADR_SRE,
 255        NETXEN_HW_CRB_HUB_AGT_ADR_NIU,
 256        NETXEN_HW_CRB_HUB_AGT_ADR_QMN,
 257        NETXEN_HW_CRB_HUB_AGT_ADR_SQN0,
 258        NETXEN_HW_CRB_HUB_AGT_ADR_SQN1,
 259        NETXEN_HW_CRB_HUB_AGT_ADR_SQN2,
 260        NETXEN_HW_CRB_HUB_AGT_ADR_SQN3,
 261        NETXEN_HW_CRB_HUB_AGT_ADR_I2Q,
 262        NETXEN_HW_CRB_HUB_AGT_ADR_TIMR,
 263        NETXEN_HW_CRB_HUB_AGT_ADR_ROMUSB,
 264        NETXEN_HW_CRB_HUB_AGT_ADR_PGN4,
 265        NETXEN_HW_CRB_HUB_AGT_ADR_XDMA,
 266        NETXEN_HW_CRB_HUB_AGT_ADR_PGN0,
 267        NETXEN_HW_CRB_HUB_AGT_ADR_PGN1,
 268        NETXEN_HW_CRB_HUB_AGT_ADR_PGN2,
 269        NETXEN_HW_CRB_HUB_AGT_ADR_PGN3,
 270        NETXEN_HW_CRB_HUB_AGT_ADR_PGND,
 271        NETXEN_HW_CRB_HUB_AGT_ADR_PGNI,
 272        NETXEN_HW_CRB_HUB_AGT_ADR_PGS0,
 273        NETXEN_HW_CRB_HUB_AGT_ADR_PGS1,
 274        NETXEN_HW_CRB_HUB_AGT_ADR_PGS2,
 275        NETXEN_HW_CRB_HUB_AGT_ADR_PGS3,
 276        0,
 277        NETXEN_HW_CRB_HUB_AGT_ADR_PGSI,
 278        NETXEN_HW_CRB_HUB_AGT_ADR_SN,
 279        0,
 280        NETXEN_HW_CRB_HUB_AGT_ADR_EG,
 281        0,
 282        NETXEN_HW_CRB_HUB_AGT_ADR_PS,
 283        NETXEN_HW_CRB_HUB_AGT_ADR_CAM,
 284        0,
 285        0,
 286        0,
 287        0,
 288        0,
 289        NETXEN_HW_CRB_HUB_AGT_ADR_TIMR,
 290        0,
 291        NETXEN_HW_CRB_HUB_AGT_ADR_RPMX1,
 292        NETXEN_HW_CRB_HUB_AGT_ADR_RPMX2,
 293        NETXEN_HW_CRB_HUB_AGT_ADR_RPMX3,
 294        NETXEN_HW_CRB_HUB_AGT_ADR_RPMX4,
 295        NETXEN_HW_CRB_HUB_AGT_ADR_RPMX5,
 296        NETXEN_HW_CRB_HUB_AGT_ADR_RPMX6,
 297        NETXEN_HW_CRB_HUB_AGT_ADR_RPMX7,
 298        NETXEN_HW_CRB_HUB_AGT_ADR_XDMA,
 299        NETXEN_HW_CRB_HUB_AGT_ADR_I2Q,
 300        NETXEN_HW_CRB_HUB_AGT_ADR_ROMUSB,
 301        0,
 302        NETXEN_HW_CRB_HUB_AGT_ADR_RPMX0,
 303        NETXEN_HW_CRB_HUB_AGT_ADR_RPMX8,
 304        NETXEN_HW_CRB_HUB_AGT_ADR_RPMX9,
 305        NETXEN_HW_CRB_HUB_AGT_ADR_OCM0,
 306        0,
 307        NETXEN_HW_CRB_HUB_AGT_ADR_SMB,
 308        NETXEN_HW_CRB_HUB_AGT_ADR_I2C0,
 309        NETXEN_HW_CRB_HUB_AGT_ADR_I2C1,
 310        0,
 311        NETXEN_HW_CRB_HUB_AGT_ADR_PGNC,
 312        0,
 313};
 314
 315/*  PCI Windowing for DDR regions.  */
 316
 317#define NETXEN_WINDOW_ONE       0x2000000 /*CRB Window: bit 25 of CRB address */
 318
 319#define NETXEN_PCIE_SEM_TIMEOUT 10000
 320
 321static int netxen_nic_set_mtu_xgb(struct netxen_adapter *adapter, int new_mtu);
 322
 323int
 324netxen_pcie_sem_lock(struct netxen_adapter *adapter, int sem, u32 id_reg)
 325{
 326        int done = 0, timeout = 0;
 327
 328        while (!done) {
 329                done = NXRD32(adapter, NETXEN_PCIE_REG(PCIE_SEM_LOCK(sem)));
 330                if (done == 1)
 331                        break;
 332                if (++timeout >= NETXEN_PCIE_SEM_TIMEOUT)
 333                        return -EIO;
 334                msleep(1);
 335        }
 336
 337        if (id_reg)
 338                NXWR32(adapter, id_reg, adapter->portnum);
 339
 340        return 0;
 341}
 342
 343void
 344netxen_pcie_sem_unlock(struct netxen_adapter *adapter, int sem)
 345{
 346        NXRD32(adapter, NETXEN_PCIE_REG(PCIE_SEM_UNLOCK(sem)));
 347}
 348
 349static int netxen_niu_xg_init_port(struct netxen_adapter *adapter, int port)
 350{
 351        if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
 352                NXWR32(adapter, NETXEN_NIU_XGE_CONFIG_1+(0x10000*port), 0x1447);
 353                NXWR32(adapter, NETXEN_NIU_XGE_CONFIG_0+(0x10000*port), 0x5);
 354        }
 355
 356        return 0;
 357}
 358
 359/* Disable an XG interface */
 360static int netxen_niu_disable_xg_port(struct netxen_adapter *adapter)
 361{
 362        __u32 mac_cfg;
 363        u32 port = adapter->physical_port;
 364
 365        if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
 366                return 0;
 367
 368        if (port >= NETXEN_NIU_MAX_XG_PORTS)
 369                return -EINVAL;
 370
 371        mac_cfg = 0;
 372        if (NXWR32(adapter,
 373                        NETXEN_NIU_XGE_CONFIG_0 + (0x10000 * port), mac_cfg))
 374                return -EIO;
 375        return 0;
 376}
 377
 378#define NETXEN_UNICAST_ADDR(port, index) \
 379        (NETXEN_UNICAST_ADDR_BASE+(port*32)+(index*8))
 380#define NETXEN_MCAST_ADDR(port, index) \
 381        (NETXEN_MULTICAST_ADDR_BASE+(port*0x80)+(index*8))
 382#define MAC_HI(addr) \
 383        ((addr[2] << 16) | (addr[1] << 8) | (addr[0]))
 384#define MAC_LO(addr) \
 385        ((addr[5] << 16) | (addr[4] << 8) | (addr[3]))
 386
 387static int netxen_p2_nic_set_promisc(struct netxen_adapter *adapter, u32 mode)
 388{
 389        u32 mac_cfg;
 390        u32 cnt = 0;
 391        __u32 reg = 0x0200;
 392        u32 port = adapter->physical_port;
 393        u16 board_type = adapter->ahw.board_type;
 394
 395        if (port >= NETXEN_NIU_MAX_XG_PORTS)
 396                return -EINVAL;
 397
 398        mac_cfg = NXRD32(adapter, NETXEN_NIU_XGE_CONFIG_0 + (0x10000 * port));
 399        mac_cfg &= ~0x4;
 400        NXWR32(adapter, NETXEN_NIU_XGE_CONFIG_0 + (0x10000 * port), mac_cfg);
 401
 402        if ((board_type == NETXEN_BRDTYPE_P2_SB31_10G_IMEZ) ||
 403                        (board_type == NETXEN_BRDTYPE_P2_SB31_10G_HMEZ))
 404                reg = (0x20 << port);
 405
 406        NXWR32(adapter, NETXEN_NIU_FRAME_COUNT_SELECT, reg);
 407
 408        mdelay(10);
 409
 410        while (NXRD32(adapter, NETXEN_NIU_FRAME_COUNT) && ++cnt < 20)
 411                mdelay(10);
 412
 413        if (cnt < 20) {
 414
 415                reg = NXRD32(adapter,
 416                        NETXEN_NIU_XGE_CONFIG_1 + (0x10000 * port));
 417
 418                if (mode == NETXEN_NIU_PROMISC_MODE)
 419                        reg = (reg | 0x2000UL);
 420                else
 421                        reg = (reg & ~0x2000UL);
 422
 423                if (mode == NETXEN_NIU_ALLMULTI_MODE)
 424                        reg = (reg | 0x1000UL);
 425                else
 426                        reg = (reg & ~0x1000UL);
 427
 428                NXWR32(adapter,
 429                        NETXEN_NIU_XGE_CONFIG_1 + (0x10000 * port), reg);
 430        }
 431
 432        mac_cfg |= 0x4;
 433        NXWR32(adapter, NETXEN_NIU_XGE_CONFIG_0 + (0x10000 * port), mac_cfg);
 434
 435        return 0;
 436}
 437
 438static int netxen_p2_nic_set_mac_addr(struct netxen_adapter *adapter, u8 *addr)
 439{
 440        u32 mac_hi, mac_lo;
 441        u32 reg_hi, reg_lo;
 442
 443        u8 phy = adapter->physical_port;
 444
 445        if (phy >= NETXEN_NIU_MAX_XG_PORTS)
 446                return -EINVAL;
 447
 448        mac_lo = ((u32)addr[0] << 16) | ((u32)addr[1] << 24);
 449        mac_hi = addr[2] | ((u32)addr[3] << 8) |
 450                ((u32)addr[4] << 16) | ((u32)addr[5] << 24);
 451
 452        reg_lo = NETXEN_NIU_XGE_STATION_ADDR_0_1 + (0x10000 * phy);
 453        reg_hi = NETXEN_NIU_XGE_STATION_ADDR_0_HI + (0x10000 * phy);
 454
 455        /* write twice to flush */
 456        if (NXWR32(adapter, reg_lo, mac_lo) || NXWR32(adapter, reg_hi, mac_hi))
 457                return -EIO;
 458        if (NXWR32(adapter, reg_lo, mac_lo) || NXWR32(adapter, reg_hi, mac_hi))
 459                return -EIO;
 460
 461        return 0;
 462}
 463
 464static int
 465netxen_nic_enable_mcast_filter(struct netxen_adapter *adapter)
 466{
 467        u32     val = 0;
 468        u16 port = adapter->physical_port;
 469        u8 *addr = adapter->mac_addr;
 470
 471        if (adapter->mc_enabled)
 472                return 0;
 473
 474        val = NXRD32(adapter, NETXEN_MAC_ADDR_CNTL_REG);
 475        val |= (1UL << (28+port));
 476        NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
 477
 478        /* add broadcast addr to filter */
 479        val = 0xffffff;
 480        NXWR32(adapter, NETXEN_UNICAST_ADDR(port, 0), val);
 481        NXWR32(adapter, NETXEN_UNICAST_ADDR(port, 0)+4, val);
 482
 483        /* add station addr to filter */
 484        val = MAC_HI(addr);
 485        NXWR32(adapter, NETXEN_UNICAST_ADDR(port, 1), val);
 486        val = MAC_LO(addr);
 487        NXWR32(adapter, NETXEN_UNICAST_ADDR(port, 1)+4, val);
 488
 489        adapter->mc_enabled = 1;
 490        return 0;
 491}
 492
 493static int
 494netxen_nic_disable_mcast_filter(struct netxen_adapter *adapter)
 495{
 496        u32     val = 0;
 497        u16 port = adapter->physical_port;
 498        u8 *addr = adapter->mac_addr;
 499
 500        if (!adapter->mc_enabled)
 501                return 0;
 502
 503        val = NXRD32(adapter, NETXEN_MAC_ADDR_CNTL_REG);
 504        val &= ~(1UL << (28+port));
 505        NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
 506
 507        val = MAC_HI(addr);
 508        NXWR32(adapter, NETXEN_UNICAST_ADDR(port, 0), val);
 509        val = MAC_LO(addr);
 510        NXWR32(adapter, NETXEN_UNICAST_ADDR(port, 0)+4, val);
 511
 512        NXWR32(adapter, NETXEN_UNICAST_ADDR(port, 1), 0);
 513        NXWR32(adapter, NETXEN_UNICAST_ADDR(port, 1)+4, 0);
 514
 515        adapter->mc_enabled = 0;
 516        return 0;
 517}
 518
 519static int
 520netxen_nic_set_mcast_addr(struct netxen_adapter *adapter,
 521                int index, u8 *addr)
 522{
 523        u32 hi = 0, lo = 0;
 524        u16 port = adapter->physical_port;
 525
 526        lo = MAC_LO(addr);
 527        hi = MAC_HI(addr);
 528
 529        NXWR32(adapter, NETXEN_MCAST_ADDR(port, index), hi);
 530        NXWR32(adapter, NETXEN_MCAST_ADDR(port, index)+4, lo);
 531
 532        return 0;
 533}
 534
 535static void netxen_p2_nic_set_multi(struct net_device *netdev)
 536{
 537        struct netxen_adapter *adapter = netdev_priv(netdev);
 538        struct netdev_hw_addr *ha;
 539        u8 null_addr[6];
 540        int i;
 541
 542        memset(null_addr, 0, 6);
 543
 544        if (netdev->flags & IFF_PROMISC) {
 545
 546                adapter->set_promisc(adapter,
 547                                NETXEN_NIU_PROMISC_MODE);
 548
 549                /* Full promiscuous mode */
 550                netxen_nic_disable_mcast_filter(adapter);
 551
 552                return;
 553        }
 554
 555        if (netdev_mc_empty(netdev)) {
 556                adapter->set_promisc(adapter,
 557                                NETXEN_NIU_NON_PROMISC_MODE);
 558                netxen_nic_disable_mcast_filter(adapter);
 559                return;
 560        }
 561
 562        adapter->set_promisc(adapter, NETXEN_NIU_ALLMULTI_MODE);
 563        if (netdev->flags & IFF_ALLMULTI ||
 564                        netdev_mc_count(netdev) > adapter->max_mc_count) {
 565                netxen_nic_disable_mcast_filter(adapter);
 566                return;
 567        }
 568
 569        netxen_nic_enable_mcast_filter(adapter);
 570
 571        i = 0;
 572        netdev_for_each_mc_addr(ha, netdev)
 573                netxen_nic_set_mcast_addr(adapter, i++, ha->addr);
 574
 575        /* Clear out remaining addresses */
 576        while (i < adapter->max_mc_count)
 577                netxen_nic_set_mcast_addr(adapter, i++, null_addr);
 578}
 579
 580static int
 581netxen_send_cmd_descs(struct netxen_adapter *adapter,
 582                struct cmd_desc_type0 *cmd_desc_arr, int nr_desc)
 583{
 584        u32 i, producer, consumer;
 585        struct netxen_cmd_buffer *pbuf;
 586        struct cmd_desc_type0 *cmd_desc;
 587        struct nx_host_tx_ring *tx_ring;
 588
 589        i = 0;
 590
 591        if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
 592                return -EIO;
 593
 594        tx_ring = adapter->tx_ring;
 595        __netif_tx_lock_bh(tx_ring->txq);
 596
 597        producer = tx_ring->producer;
 598        consumer = tx_ring->sw_consumer;
 599
 600        if (nr_desc >= netxen_tx_avail(tx_ring)) {
 601                netif_tx_stop_queue(tx_ring->txq);
 602                smp_mb();
 603                if (netxen_tx_avail(tx_ring) > nr_desc) {
 604                        if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH)
 605                                netif_tx_wake_queue(tx_ring->txq);
 606                } else {
 607                        __netif_tx_unlock_bh(tx_ring->txq);
 608                        return -EBUSY;
 609                }
 610        }
 611
 612        do {
 613                cmd_desc = &cmd_desc_arr[i];
 614
 615                pbuf = &tx_ring->cmd_buf_arr[producer];
 616                pbuf->skb = NULL;
 617                pbuf->frag_count = 0;
 618
 619                memcpy(&tx_ring->desc_head[producer],
 620                        &cmd_desc_arr[i], sizeof(struct cmd_desc_type0));
 621
 622                producer = get_next_index(producer, tx_ring->num_desc);
 623                i++;
 624
 625        } while (i != nr_desc);
 626
 627        tx_ring->producer = producer;
 628
 629        netxen_nic_update_cmd_producer(adapter, tx_ring);
 630
 631        __netif_tx_unlock_bh(tx_ring->txq);
 632
 633        return 0;
 634}
 635
 636static int
 637nx_p3_sre_macaddr_change(struct netxen_adapter *adapter, u8 *addr, unsigned op)
 638{
 639        nx_nic_req_t req;
 640        nx_mac_req_t *mac_req;
 641        u64 word;
 642
 643        memset(&req, 0, sizeof(nx_nic_req_t));
 644        req.qhdr = cpu_to_le64(NX_NIC_REQUEST << 23);
 645
 646        word = NX_MAC_EVENT | ((u64)adapter->portnum << 16);
 647        req.req_hdr = cpu_to_le64(word);
 648
 649        mac_req = (nx_mac_req_t *)&req.words[0];
 650        mac_req->op = op;
 651        memcpy(mac_req->mac_addr, addr, 6);
 652
 653        return netxen_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 654}
 655
 656static int nx_p3_nic_add_mac(struct netxen_adapter *adapter,
 657                const u8 *addr, struct list_head *del_list)
 658{
 659        struct list_head *head;
 660        nx_mac_list_t *cur;
 661
 662        /* look up if already exists */
 663        list_for_each(head, del_list) {
 664                cur = list_entry(head, nx_mac_list_t, list);
 665
 666                if (memcmp(addr, cur->mac_addr, ETH_ALEN) == 0) {
 667                        list_move_tail(head, &adapter->mac_list);
 668                        return 0;
 669                }
 670        }
 671
 672        cur = kzalloc(sizeof(nx_mac_list_t), GFP_ATOMIC);
 673        if (cur == NULL)
 674                return -ENOMEM;
 675
 676        memcpy(cur->mac_addr, addr, ETH_ALEN);
 677        list_add_tail(&cur->list, &adapter->mac_list);
 678        return nx_p3_sre_macaddr_change(adapter,
 679                                cur->mac_addr, NETXEN_MAC_ADD);
 680}
 681
 682static void netxen_p3_nic_set_multi(struct net_device *netdev)
 683{
 684        struct netxen_adapter *adapter = netdev_priv(netdev);
 685        struct netdev_hw_addr *ha;
 686        static const u8 bcast_addr[ETH_ALEN] = {
 687                0xff, 0xff, 0xff, 0xff, 0xff, 0xff
 688        };
 689        u32 mode = VPORT_MISS_MODE_DROP;
 690        LIST_HEAD(del_list);
 691        struct list_head *head;
 692        nx_mac_list_t *cur;
 693
 694        if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
 695                return;
 696
 697        list_splice_tail_init(&adapter->mac_list, &del_list);
 698
 699        nx_p3_nic_add_mac(adapter, adapter->mac_addr, &del_list);
 700        nx_p3_nic_add_mac(adapter, bcast_addr, &del_list);
 701
 702        if (netdev->flags & IFF_PROMISC) {
 703                mode = VPORT_MISS_MODE_ACCEPT_ALL;
 704                goto send_fw_cmd;
 705        }
 706
 707        if ((netdev->flags & IFF_ALLMULTI) ||
 708                        (netdev_mc_count(netdev) > adapter->max_mc_count)) {
 709                mode = VPORT_MISS_MODE_ACCEPT_MULTI;
 710                goto send_fw_cmd;
 711        }
 712
 713        if (!netdev_mc_empty(netdev)) {
 714                netdev_for_each_mc_addr(ha, netdev)
 715                        nx_p3_nic_add_mac(adapter, ha->addr, &del_list);
 716        }
 717
 718send_fw_cmd:
 719        adapter->set_promisc(adapter, mode);
 720        head = &del_list;
 721        while (!list_empty(head)) {
 722                cur = list_entry(head->next, nx_mac_list_t, list);
 723
 724                nx_p3_sre_macaddr_change(adapter,
 725                                cur->mac_addr, NETXEN_MAC_DEL);
 726                list_del(&cur->list);
 727                kfree(cur);
 728        }
 729}
 730
 731static int netxen_p3_nic_set_promisc(struct netxen_adapter *adapter, u32 mode)
 732{
 733        nx_nic_req_t req;
 734        u64 word;
 735
 736        memset(&req, 0, sizeof(nx_nic_req_t));
 737
 738        req.qhdr = cpu_to_le64(NX_HOST_REQUEST << 23);
 739
 740        word = NX_NIC_H2C_OPCODE_PROXY_SET_VPORT_MISS_MODE |
 741                        ((u64)adapter->portnum << 16);
 742        req.req_hdr = cpu_to_le64(word);
 743
 744        req.words[0] = cpu_to_le64(mode);
 745
 746        return netxen_send_cmd_descs(adapter,
 747                                (struct cmd_desc_type0 *)&req, 1);
 748}
 749
 750void netxen_p3_free_mac_list(struct netxen_adapter *adapter)
 751{
 752        nx_mac_list_t *cur;
 753        struct list_head *head = &adapter->mac_list;
 754
 755        while (!list_empty(head)) {
 756                cur = list_entry(head->next, nx_mac_list_t, list);
 757                nx_p3_sre_macaddr_change(adapter,
 758                                cur->mac_addr, NETXEN_MAC_DEL);
 759                list_del(&cur->list);
 760                kfree(cur);
 761        }
 762}
 763
 764static int netxen_p3_nic_set_mac_addr(struct netxen_adapter *adapter, u8 *addr)
 765{
 766        /* assuming caller has already copied new addr to netdev */
 767        netxen_p3_nic_set_multi(adapter->netdev);
 768        return 0;
 769}
 770
 771#define NETXEN_CONFIG_INTR_COALESCE     3
 772
 773/*
 774 * Send the interrupt coalescing parameter set by ethtool to the card.
 775 */
 776int netxen_config_intr_coalesce(struct netxen_adapter *adapter)
 777{
 778        nx_nic_req_t req;
 779        u64 word[6];
 780        int rv, i;
 781
 782        memset(&req, 0, sizeof(nx_nic_req_t));
 783        memset(word, 0, sizeof(word));
 784
 785        req.qhdr = cpu_to_le64(NX_HOST_REQUEST << 23);
 786
 787        word[0] = NETXEN_CONFIG_INTR_COALESCE | ((u64)adapter->portnum << 16);
 788        req.req_hdr = cpu_to_le64(word[0]);
 789
 790        memcpy(&word[0], &adapter->coal, sizeof(adapter->coal));
 791        for (i = 0; i < 6; i++)
 792                req.words[i] = cpu_to_le64(word[i]);
 793
 794        rv = netxen_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 795        if (rv != 0) {
 796                printk(KERN_ERR "ERROR. Could not send "
 797                        "interrupt coalescing parameters\n");
 798        }
 799
 800        return rv;
 801}
 802
 803int netxen_config_hw_lro(struct netxen_adapter *adapter, int enable)
 804{
 805        nx_nic_req_t req;
 806        u64 word;
 807        int rv = 0;
 808
 809        if (!test_bit(__NX_FW_ATTACHED, &adapter->state))
 810                return 0;
 811
 812        memset(&req, 0, sizeof(nx_nic_req_t));
 813
 814        req.qhdr = cpu_to_le64(NX_HOST_REQUEST << 23);
 815
 816        word = NX_NIC_H2C_OPCODE_CONFIG_HW_LRO | ((u64)adapter->portnum << 16);
 817        req.req_hdr = cpu_to_le64(word);
 818
 819        req.words[0] = cpu_to_le64(enable);
 820
 821        rv = netxen_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 822        if (rv != 0) {
 823                printk(KERN_ERR "ERROR. Could not send "
 824                        "configure hw lro request\n");
 825        }
 826
 827        return rv;
 828}
 829
 830int netxen_config_bridged_mode(struct netxen_adapter *adapter, int enable)
 831{
 832        nx_nic_req_t req;
 833        u64 word;
 834        int rv = 0;
 835
 836        if (!!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED) == enable)
 837                return rv;
 838
 839        memset(&req, 0, sizeof(nx_nic_req_t));
 840
 841        req.qhdr = cpu_to_le64(NX_HOST_REQUEST << 23);
 842
 843        word = NX_NIC_H2C_OPCODE_CONFIG_BRIDGING |
 844                ((u64)adapter->portnum << 16);
 845        req.req_hdr = cpu_to_le64(word);
 846
 847        req.words[0] = cpu_to_le64(enable);
 848
 849        rv = netxen_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 850        if (rv != 0) {
 851                printk(KERN_ERR "ERROR. Could not send "
 852                                "configure bridge mode request\n");
 853        }
 854
 855        adapter->flags ^= NETXEN_NIC_BRIDGE_ENABLED;
 856
 857        return rv;
 858}
 859
 860
 861#define RSS_HASHTYPE_IP_TCP     0x3
 862
 863int netxen_config_rss(struct netxen_adapter *adapter, int enable)
 864{
 865        nx_nic_req_t req;
 866        u64 word;
 867        int i, rv;
 868
 869        static const u64 key[] = {
 870                0xbeac01fa6a42b73bULL, 0x8030f20c77cb2da3ULL,
 871                0xae7b30b4d0ca2bcbULL, 0x43a38fb04167253dULL,
 872                0x255b0ec26d5a56daULL
 873        };
 874
 875
 876        memset(&req, 0, sizeof(nx_nic_req_t));
 877        req.qhdr = cpu_to_le64(NX_HOST_REQUEST << 23);
 878
 879        word = NX_NIC_H2C_OPCODE_CONFIG_RSS | ((u64)adapter->portnum << 16);
 880        req.req_hdr = cpu_to_le64(word);
 881
 882        /*
 883         * RSS request:
 884         * bits 3-0: hash_method
 885         *      5-4: hash_type_ipv4
 886         *      7-6: hash_type_ipv6
 887         *        8: enable
 888         *        9: use indirection table
 889         *    47-10: reserved
 890         *    63-48: indirection table mask
 891         */
 892        word =  ((u64)(RSS_HASHTYPE_IP_TCP & 0x3) << 4) |
 893                ((u64)(RSS_HASHTYPE_IP_TCP & 0x3) << 6) |
 894                ((u64)(enable & 0x1) << 8) |
 895                ((0x7ULL) << 48);
 896        req.words[0] = cpu_to_le64(word);
 897        for (i = 0; i < ARRAY_SIZE(key); i++)
 898                req.words[i+1] = cpu_to_le64(key[i]);
 899
 900
 901        rv = netxen_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 902        if (rv != 0) {
 903                printk(KERN_ERR "%s: could not configure RSS\n",
 904                                adapter->netdev->name);
 905        }
 906
 907        return rv;
 908}
 909
 910int netxen_config_ipaddr(struct netxen_adapter *adapter, __be32 ip, int cmd)
 911{
 912        nx_nic_req_t req;
 913        u64 word;
 914        int rv;
 915
 916        memset(&req, 0, sizeof(nx_nic_req_t));
 917        req.qhdr = cpu_to_le64(NX_HOST_REQUEST << 23);
 918
 919        word = NX_NIC_H2C_OPCODE_CONFIG_IPADDR | ((u64)adapter->portnum << 16);
 920        req.req_hdr = cpu_to_le64(word);
 921
 922        req.words[0] = cpu_to_le64(cmd);
 923        memcpy(&req.words[1], &ip, sizeof(u32));
 924
 925        rv = netxen_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 926        if (rv != 0) {
 927                printk(KERN_ERR "%s: could not notify %s IP 0x%x reuqest\n",
 928                                adapter->netdev->name,
 929                                (cmd == NX_IP_UP) ? "Add" : "Remove", ip);
 930        }
 931        return rv;
 932}
 933
 934int netxen_linkevent_request(struct netxen_adapter *adapter, int enable)
 935{
 936        nx_nic_req_t req;
 937        u64 word;
 938        int rv;
 939
 940        memset(&req, 0, sizeof(nx_nic_req_t));
 941        req.qhdr = cpu_to_le64(NX_HOST_REQUEST << 23);
 942
 943        word = NX_NIC_H2C_OPCODE_GET_LINKEVENT | ((u64)adapter->portnum << 16);
 944        req.req_hdr = cpu_to_le64(word);
 945        req.words[0] = cpu_to_le64(enable | (enable << 8));
 946
 947        rv = netxen_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 948        if (rv != 0) {
 949                printk(KERN_ERR "%s: could not configure link notification\n",
 950                                adapter->netdev->name);
 951        }
 952
 953        return rv;
 954}
 955
 956int netxen_send_lro_cleanup(struct netxen_adapter *adapter)
 957{
 958        nx_nic_req_t req;
 959        u64 word;
 960        int rv;
 961
 962        if (!test_bit(__NX_FW_ATTACHED, &adapter->state))
 963                return 0;
 964
 965        memset(&req, 0, sizeof(nx_nic_req_t));
 966        req.qhdr = cpu_to_le64(NX_HOST_REQUEST << 23);
 967
 968        word = NX_NIC_H2C_OPCODE_LRO_REQUEST |
 969                ((u64)adapter->portnum << 16) |
 970                ((u64)NX_NIC_LRO_REQUEST_CLEANUP << 56) ;
 971
 972        req.req_hdr = cpu_to_le64(word);
 973
 974        rv = netxen_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 975        if (rv != 0) {
 976                printk(KERN_ERR "%s: could not cleanup lro flows\n",
 977                                adapter->netdev->name);
 978        }
 979        return rv;
 980}
 981
 982/*
 983 * netxen_nic_change_mtu - Change the Maximum Transfer Unit
 984 * @returns 0 on success, negative on failure
 985 */
 986
 987#define MTU_FUDGE_FACTOR        100
 988
 989int netxen_nic_change_mtu(struct net_device *netdev, int mtu)
 990{
 991        struct netxen_adapter *adapter = netdev_priv(netdev);
 992        int max_mtu;
 993        int rc = 0;
 994
 995        if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
 996                max_mtu = P3_MAX_MTU;
 997        else
 998                max_mtu = P2_MAX_MTU;
 999
1000        if (mtu > max_mtu) {
1001                printk(KERN_ERR "%s: mtu > %d bytes unsupported\n",
1002                                netdev->name, max_mtu);
1003                return -EINVAL;
1004        }
1005
1006        if (adapter->set_mtu)
1007                rc = adapter->set_mtu(adapter, mtu);
1008
1009        if (!rc)
1010                netdev->mtu = mtu;
1011
1012        return rc;
1013}
1014
1015static int netxen_get_flash_block(struct netxen_adapter *adapter, int base,
1016                                  int size, __le32 * buf)
1017{
1018        int i, v, addr;
1019        __le32 *ptr32;
1020
1021        addr = base;
1022        ptr32 = buf;
1023        for (i = 0; i < size / sizeof(u32); i++) {
1024                if (netxen_rom_fast_read(adapter, addr, &v) == -1)
1025                        return -1;
1026                *ptr32 = cpu_to_le32(v);
1027                ptr32++;
1028                addr += sizeof(u32);
1029        }
1030        if ((char *)buf + size > (char *)ptr32) {
1031                __le32 local;
1032                if (netxen_rom_fast_read(adapter, addr, &v) == -1)
1033                        return -1;
1034                local = cpu_to_le32(v);
1035                memcpy(ptr32, &local, (char *)buf + size - (char *)ptr32);
1036        }
1037
1038        return 0;
1039}
1040
1041int netxen_get_flash_mac_addr(struct netxen_adapter *adapter, u64 *mac)
1042{
1043        __le32 *pmac = (__le32 *) mac;
1044        u32 offset;
1045
1046        offset = NX_FW_MAC_ADDR_OFFSET + (adapter->portnum * sizeof(u64));
1047
1048        if (netxen_get_flash_block(adapter, offset, sizeof(u64), pmac) == -1)
1049                return -1;
1050
1051        if (*mac == ~0ULL) {
1052
1053                offset = NX_OLD_MAC_ADDR_OFFSET +
1054                        (adapter->portnum * sizeof(u64));
1055
1056                if (netxen_get_flash_block(adapter,
1057                                        offset, sizeof(u64), pmac) == -1)
1058                        return -1;
1059
1060                if (*mac == ~0ULL)
1061                        return -1;
1062        }
1063        return 0;
1064}
1065
1066int netxen_p3_get_mac_addr(struct netxen_adapter *adapter, u64 *mac)
1067{
1068        uint32_t crbaddr, mac_hi, mac_lo;
1069        int pci_func = adapter->ahw.pci_func;
1070
1071        crbaddr = CRB_MAC_BLOCK_START +
1072                (4 * ((pci_func/2) * 3)) + (4 * (pci_func & 1));
1073
1074        mac_lo = NXRD32(adapter, crbaddr);
1075        mac_hi = NXRD32(adapter, crbaddr+4);
1076
1077        if (pci_func & 1)
1078                *mac = le64_to_cpu((mac_lo >> 16) | ((u64)mac_hi << 16));
1079        else
1080                *mac = le64_to_cpu((u64)mac_lo | ((u64)mac_hi << 32));
1081
1082        return 0;
1083}
1084
1085/*
1086 * Changes the CRB window to the specified window.
1087 */
1088static void
1089netxen_nic_pci_set_crbwindow_128M(struct netxen_adapter *adapter,
1090                u32 window)
1091{
1092        void __iomem *offset;
1093        int count = 10;
1094        u8 func = adapter->ahw.pci_func;
1095
1096        if (adapter->ahw.crb_win == window)
1097                return;
1098
1099        offset = PCI_OFFSET_SECOND_RANGE(adapter,
1100                        NETXEN_PCIX_PH_REG(PCIE_CRB_WINDOW_REG(func)));
1101
1102        writel(window, offset);
1103        do {
1104                if (window == readl(offset))
1105                        break;
1106
1107                if (printk_ratelimit())
1108                        dev_warn(&adapter->pdev->dev,
1109                                        "failed to set CRB window to %d\n",
1110                                        (window == NETXEN_WINDOW_ONE));
1111                udelay(1);
1112
1113        } while (--count > 0);
1114
1115        if (count > 0)
1116                adapter->ahw.crb_win = window;
1117}
1118
1119/*
1120 * Returns < 0 if off is not valid,
1121 *       1 if window access is needed. 'off' is set to offset from
1122 *         CRB space in 128M pci map
1123 *       0 if no window access is needed. 'off' is set to 2M addr
1124 * In: 'off' is offset from base in 128M pci map
1125 */
1126static int
1127netxen_nic_pci_get_crb_addr_2M(struct netxen_adapter *adapter,
1128                ulong off, void __iomem **addr)
1129{
1130        crb_128M_2M_sub_block_map_t *m;
1131
1132
1133        if ((off >= NETXEN_CRB_MAX) || (off < NETXEN_PCI_CRBSPACE))
1134                return -EINVAL;
1135
1136        off -= NETXEN_PCI_CRBSPACE;
1137
1138        /*
1139         * Try direct map
1140         */
1141        m = &crb_128M_2M_map[CRB_BLK(off)].sub_block[CRB_SUBBLK(off)];
1142
1143        if (m->valid && (m->start_128M <= off) && (m->end_128M > off)) {
1144                *addr = adapter->ahw.pci_base0 + m->start_2M +
1145                        (off - m->start_128M);
1146                return 0;
1147        }
1148
1149        /*
1150         * Not in direct map, use crb window
1151         */
1152        *addr = adapter->ahw.pci_base0 + CRB_INDIRECT_2M +
1153                (off & MASK(16));
1154        return 1;
1155}
1156
1157/*
1158 * In: 'off' is offset from CRB space in 128M pci map
1159 * Out: 'off' is 2M pci map addr
1160 * side effect: lock crb window
1161 */
1162static void
1163netxen_nic_pci_set_crbwindow_2M(struct netxen_adapter *adapter, ulong off)
1164{
1165        u32 window;
1166        void __iomem *addr = adapter->ahw.pci_base0 + CRB_WINDOW_2M;
1167
1168        off -= NETXEN_PCI_CRBSPACE;
1169
1170        window = CRB_HI(off);
1171
1172        writel(window, addr);
1173        if (readl(addr) != window) {
1174                if (printk_ratelimit())
1175                        dev_warn(&adapter->pdev->dev,
1176                                "failed to set CRB window to %d off 0x%lx\n",
1177                                window, off);
1178        }
1179}
1180
1181static void __iomem *
1182netxen_nic_map_indirect_address_128M(struct netxen_adapter *adapter,
1183                ulong win_off, void __iomem **mem_ptr)
1184{
1185        ulong off = win_off;
1186        void __iomem *addr;
1187        resource_size_t mem_base;
1188
1189        if (ADDR_IN_WINDOW1(win_off))
1190                off = NETXEN_CRB_NORMAL(win_off);
1191
1192        addr = pci_base_offset(adapter, off);
1193        if (addr)
1194                return addr;
1195
1196        if (adapter->ahw.pci_len0 == 0)
1197                off -= NETXEN_PCI_CRBSPACE;
1198
1199        mem_base = pci_resource_start(adapter->pdev, 0);
1200        *mem_ptr = ioremap(mem_base + (off & PAGE_MASK), PAGE_SIZE);
1201        if (*mem_ptr)
1202                addr = *mem_ptr + (off & (PAGE_SIZE - 1));
1203
1204        return addr;
1205}
1206
1207static int
1208netxen_nic_hw_write_wx_128M(struct netxen_adapter *adapter, ulong off, u32 data)
1209{
1210        unsigned long flags;
1211        void __iomem *addr, *mem_ptr = NULL;
1212
1213        addr = netxen_nic_map_indirect_address_128M(adapter, off, &mem_ptr);
1214        if (!addr)
1215                return -EIO;
1216
1217        if (ADDR_IN_WINDOW1(off)) { /* Window 1 */
1218                netxen_nic_io_write_128M(adapter, addr, data);
1219        } else {        /* Window 0 */
1220                write_lock_irqsave(&adapter->ahw.crb_lock, flags);
1221                netxen_nic_pci_set_crbwindow_128M(adapter, 0);
1222                writel(data, addr);
1223                netxen_nic_pci_set_crbwindow_128M(adapter,
1224                                NETXEN_WINDOW_ONE);
1225                write_unlock_irqrestore(&adapter->ahw.crb_lock, flags);
1226        }
1227
1228        if (mem_ptr)
1229                iounmap(mem_ptr);
1230
1231        return 0;
1232}
1233
1234static u32
1235netxen_nic_hw_read_wx_128M(struct netxen_adapter *adapter, ulong off)
1236{
1237        unsigned long flags;
1238        void __iomem *addr, *mem_ptr = NULL;
1239        u32 data;
1240
1241        addr = netxen_nic_map_indirect_address_128M(adapter, off, &mem_ptr);
1242        if (!addr)
1243                return -EIO;
1244
1245        if (ADDR_IN_WINDOW1(off)) { /* Window 1 */
1246                data = netxen_nic_io_read_128M(adapter, addr);
1247        } else {        /* Window 0 */
1248                write_lock_irqsave(&adapter->ahw.crb_lock, flags);
1249                netxen_nic_pci_set_crbwindow_128M(adapter, 0);
1250                data = readl(addr);
1251                netxen_nic_pci_set_crbwindow_128M(adapter,
1252                                NETXEN_WINDOW_ONE);
1253                write_unlock_irqrestore(&adapter->ahw.crb_lock, flags);
1254        }
1255
1256        if (mem_ptr)
1257                iounmap(mem_ptr);
1258
1259        return data;
1260}
1261
1262static int
1263netxen_nic_hw_write_wx_2M(struct netxen_adapter *adapter, ulong off, u32 data)
1264{
1265        unsigned long flags;
1266        int rv;
1267        void __iomem *addr = NULL;
1268
1269        rv = netxen_nic_pci_get_crb_addr_2M(adapter, off, &addr);
1270
1271        if (rv == 0) {
1272                writel(data, addr);
1273                return 0;
1274        }
1275
1276        if (rv > 0) {
1277                /* indirect access */
1278                write_lock_irqsave(&adapter->ahw.crb_lock, flags);
1279                crb_win_lock(adapter);
1280                netxen_nic_pci_set_crbwindow_2M(adapter, off);
1281                writel(data, addr);
1282                crb_win_unlock(adapter);
1283                write_unlock_irqrestore(&adapter->ahw.crb_lock, flags);
1284                return 0;
1285        }
1286
1287        dev_err(&adapter->pdev->dev,
1288                        "%s: invalid offset: 0x%016lx\n", __func__, off);
1289        dump_stack();
1290        return -EIO;
1291}
1292
1293static u32
1294netxen_nic_hw_read_wx_2M(struct netxen_adapter *adapter, ulong off)
1295{
1296        unsigned long flags;
1297        int rv;
1298        u32 data;
1299        void __iomem *addr = NULL;
1300
1301        rv = netxen_nic_pci_get_crb_addr_2M(adapter, off, &addr);
1302
1303        if (rv == 0)
1304                return readl(addr);
1305
1306        if (rv > 0) {
1307                /* indirect access */
1308                write_lock_irqsave(&adapter->ahw.crb_lock, flags);
1309                crb_win_lock(adapter);
1310                netxen_nic_pci_set_crbwindow_2M(adapter, off);
1311                data = readl(addr);
1312                crb_win_unlock(adapter);
1313                write_unlock_irqrestore(&adapter->ahw.crb_lock, flags);
1314                return data;
1315        }
1316
1317        dev_err(&adapter->pdev->dev,
1318                        "%s: invalid offset: 0x%016lx\n", __func__, off);
1319        dump_stack();
1320        return -1;
1321}
1322
1323/* window 1 registers only */
1324static void netxen_nic_io_write_128M(struct netxen_adapter *adapter,
1325                void __iomem *addr, u32 data)
1326{
1327        read_lock(&adapter->ahw.crb_lock);
1328        writel(data, addr);
1329        read_unlock(&adapter->ahw.crb_lock);
1330}
1331
1332static u32 netxen_nic_io_read_128M(struct netxen_adapter *adapter,
1333                void __iomem *addr)
1334{
1335        u32 val;
1336
1337        read_lock(&adapter->ahw.crb_lock);
1338        val = readl(addr);
1339        read_unlock(&adapter->ahw.crb_lock);
1340
1341        return val;
1342}
1343
1344static void netxen_nic_io_write_2M(struct netxen_adapter *adapter,
1345                void __iomem *addr, u32 data)
1346{
1347        writel(data, addr);
1348}
1349
1350static u32 netxen_nic_io_read_2M(struct netxen_adapter *adapter,
1351                void __iomem *addr)
1352{
1353        return readl(addr);
1354}
1355
1356void __iomem *
1357netxen_get_ioaddr(struct netxen_adapter *adapter, u32 offset)
1358{
1359        void __iomem *addr = NULL;
1360
1361        if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1362                if ((offset < NETXEN_CRB_PCIX_HOST2) &&
1363                                (offset > NETXEN_CRB_PCIX_HOST))
1364                        addr = PCI_OFFSET_SECOND_RANGE(adapter, offset);
1365                else
1366                        addr = NETXEN_CRB_NORMALIZE(adapter, offset);
1367        } else {
1368                WARN_ON(netxen_nic_pci_get_crb_addr_2M(adapter,
1369                                        offset, &addr));
1370        }
1371
1372        return addr;
1373}
1374
1375static int
1376netxen_nic_pci_set_window_128M(struct netxen_adapter *adapter,
1377                u64 addr, u32 *start)
1378{
1379        if (ADDR_IN_RANGE(addr, NETXEN_ADDR_OCM0, NETXEN_ADDR_OCM0_MAX)) {
1380                *start = (addr - NETXEN_ADDR_OCM0  + NETXEN_PCI_OCM0);
1381                return 0;
1382        } else if (ADDR_IN_RANGE(addr,
1383                                NETXEN_ADDR_OCM1, NETXEN_ADDR_OCM1_MAX)) {
1384                *start = (addr - NETXEN_ADDR_OCM1 + NETXEN_PCI_OCM1);
1385                return 0;
1386        }
1387
1388        return -EIO;
1389}
1390
1391static int
1392netxen_nic_pci_set_window_2M(struct netxen_adapter *adapter,
1393                u64 addr, u32 *start)
1394{
1395        u32 window;
1396
1397        window = OCM_WIN(addr);
1398
1399        writel(window, adapter->ahw.ocm_win_crb);
1400        /* read back to flush */
1401        readl(adapter->ahw.ocm_win_crb);
1402
1403        adapter->ahw.ocm_win = window;
1404        *start = NETXEN_PCI_OCM0_2M + GET_MEM_OFFS_2M(addr);
1405        return 0;
1406}
1407
1408static int
1409netxen_nic_pci_mem_access_direct(struct netxen_adapter *adapter, u64 off,
1410                u64 *data, int op)
1411{
1412        void __iomem *addr, *mem_ptr = NULL;
1413        resource_size_t mem_base;
1414        int ret;
1415        u32 start;
1416
1417        spin_lock(&adapter->ahw.mem_lock);
1418
1419        ret = adapter->pci_set_window(adapter, off, &start);
1420        if (ret != 0)
1421                goto unlock;
1422
1423        if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1424                addr = adapter->ahw.pci_base0 + start;
1425        } else {
1426                addr = pci_base_offset(adapter, start);
1427                if (addr)
1428                        goto noremap;
1429
1430                mem_base = pci_resource_start(adapter->pdev, 0) +
1431                                        (start & PAGE_MASK);
1432                mem_ptr = ioremap(mem_base, PAGE_SIZE);
1433                if (mem_ptr == NULL) {
1434                        ret = -EIO;
1435                        goto unlock;
1436                }
1437
1438                addr = mem_ptr + (start & (PAGE_SIZE-1));
1439        }
1440noremap:
1441        if (op == 0)    /* read */
1442                *data = readq(addr);
1443        else            /* write */
1444                writeq(*data, addr);
1445
1446unlock:
1447        spin_unlock(&adapter->ahw.mem_lock);
1448
1449        if (mem_ptr)
1450                iounmap(mem_ptr);
1451        return ret;
1452}
1453
1454void
1455netxen_pci_camqm_read_2M(struct netxen_adapter *adapter, u64 off, u64 *data)
1456{
1457        void __iomem *addr = adapter->ahw.pci_base0 +
1458                NETXEN_PCI_CAMQM_2M_BASE + (off - NETXEN_PCI_CAMQM);
1459
1460        spin_lock(&adapter->ahw.mem_lock);
1461        *data = readq(addr);
1462        spin_unlock(&adapter->ahw.mem_lock);
1463}
1464
1465void
1466netxen_pci_camqm_write_2M(struct netxen_adapter *adapter, u64 off, u64 data)
1467{
1468        void __iomem *addr = adapter->ahw.pci_base0 +
1469                NETXEN_PCI_CAMQM_2M_BASE + (off - NETXEN_PCI_CAMQM);
1470
1471        spin_lock(&adapter->ahw.mem_lock);
1472        writeq(data, addr);
1473        spin_unlock(&adapter->ahw.mem_lock);
1474}
1475
1476#define MAX_CTL_CHECK   1000
1477
1478static int
1479netxen_nic_pci_mem_write_128M(struct netxen_adapter *adapter,
1480                u64 off, u64 data)
1481{
1482        int j, ret;
1483        u32 temp, off_lo, off_hi, addr_hi, data_hi, data_lo;
1484        void __iomem *mem_crb;
1485
1486        /* Only 64-bit aligned access */
1487        if (off & 7)
1488                return -EIO;
1489
1490        /* P2 has different SIU and MIU test agent base addr */
1491        if (ADDR_IN_RANGE(off, NETXEN_ADDR_QDR_NET,
1492                                NETXEN_ADDR_QDR_NET_MAX_P2)) {
1493                mem_crb = pci_base_offset(adapter,
1494                                NETXEN_CRB_QDR_NET+SIU_TEST_AGT_BASE);
1495                addr_hi = SIU_TEST_AGT_ADDR_HI;
1496                data_lo = SIU_TEST_AGT_WRDATA_LO;
1497                data_hi = SIU_TEST_AGT_WRDATA_HI;
1498                off_lo = off & SIU_TEST_AGT_ADDR_MASK;
1499                off_hi = SIU_TEST_AGT_UPPER_ADDR(off);
1500                goto correct;
1501        }
1502
1503        if (ADDR_IN_RANGE(off, NETXEN_ADDR_DDR_NET, NETXEN_ADDR_DDR_NET_MAX)) {
1504                mem_crb = pci_base_offset(adapter,
1505                                NETXEN_CRB_DDR_NET+MIU_TEST_AGT_BASE);
1506                addr_hi = MIU_TEST_AGT_ADDR_HI;
1507                data_lo = MIU_TEST_AGT_WRDATA_LO;
1508                data_hi = MIU_TEST_AGT_WRDATA_HI;
1509                off_lo = off & MIU_TEST_AGT_ADDR_MASK;
1510                off_hi = 0;
1511                goto correct;
1512        }
1513
1514        if (ADDR_IN_RANGE(off, NETXEN_ADDR_OCM0, NETXEN_ADDR_OCM0_MAX) ||
1515                ADDR_IN_RANGE(off, NETXEN_ADDR_OCM1, NETXEN_ADDR_OCM1_MAX)) {
1516                if (adapter->ahw.pci_len0 != 0) {
1517                        return netxen_nic_pci_mem_access_direct(adapter,
1518                                        off, &data, 1);
1519                }
1520        }
1521
1522        return -EIO;
1523
1524correct:
1525        spin_lock(&adapter->ahw.mem_lock);
1526        netxen_nic_pci_set_crbwindow_128M(adapter, 0);
1527
1528        writel(off_lo, (mem_crb + MIU_TEST_AGT_ADDR_LO));
1529        writel(off_hi, (mem_crb + addr_hi));
1530        writel(data & 0xffffffff, (mem_crb + data_lo));
1531        writel((data >> 32) & 0xffffffff, (mem_crb + data_hi));
1532        writel((TA_CTL_ENABLE | TA_CTL_WRITE), (mem_crb + TEST_AGT_CTRL));
1533        writel((TA_CTL_START | TA_CTL_ENABLE | TA_CTL_WRITE),
1534                        (mem_crb + TEST_AGT_CTRL));
1535
1536        for (j = 0; j < MAX_CTL_CHECK; j++) {
1537                temp = readl((mem_crb + TEST_AGT_CTRL));
1538                if ((temp & TA_CTL_BUSY) == 0)
1539                        break;
1540        }
1541
1542        if (j >= MAX_CTL_CHECK) {
1543                if (printk_ratelimit())
1544                        dev_err(&adapter->pdev->dev,
1545                                        "failed to write through agent\n");
1546                ret = -EIO;
1547        } else
1548                ret = 0;
1549
1550        netxen_nic_pci_set_crbwindow_128M(adapter, NETXEN_WINDOW_ONE);
1551        spin_unlock(&adapter->ahw.mem_lock);
1552        return ret;
1553}
1554
1555static int
1556netxen_nic_pci_mem_read_128M(struct netxen_adapter *adapter,
1557                u64 off, u64 *data)
1558{
1559        int j, ret;
1560        u32 temp, off_lo, off_hi, addr_hi, data_hi, data_lo;
1561        u64 val;
1562        void __iomem *mem_crb;
1563
1564        /* Only 64-bit aligned access */
1565        if (off & 7)
1566                return -EIO;
1567
1568        /* P2 has different SIU and MIU test agent base addr */
1569        if (ADDR_IN_RANGE(off, NETXEN_ADDR_QDR_NET,
1570                                NETXEN_ADDR_QDR_NET_MAX_P2)) {
1571                mem_crb = pci_base_offset(adapter,
1572                                NETXEN_CRB_QDR_NET+SIU_TEST_AGT_BASE);
1573                addr_hi = SIU_TEST_AGT_ADDR_HI;
1574                data_lo = SIU_TEST_AGT_RDDATA_LO;
1575                data_hi = SIU_TEST_AGT_RDDATA_HI;
1576                off_lo = off & SIU_TEST_AGT_ADDR_MASK;
1577                off_hi = SIU_TEST_AGT_UPPER_ADDR(off);
1578                goto correct;
1579        }
1580
1581        if (ADDR_IN_RANGE(off, NETXEN_ADDR_DDR_NET, NETXEN_ADDR_DDR_NET_MAX)) {
1582                mem_crb = pci_base_offset(adapter,
1583                                NETXEN_CRB_DDR_NET+MIU_TEST_AGT_BASE);
1584                addr_hi = MIU_TEST_AGT_ADDR_HI;
1585                data_lo = MIU_TEST_AGT_RDDATA_LO;
1586                data_hi = MIU_TEST_AGT_RDDATA_HI;
1587                off_lo = off & MIU_TEST_AGT_ADDR_MASK;
1588                off_hi = 0;
1589                goto correct;
1590        }
1591
1592        if (ADDR_IN_RANGE(off, NETXEN_ADDR_OCM0, NETXEN_ADDR_OCM0_MAX) ||
1593                ADDR_IN_RANGE(off, NETXEN_ADDR_OCM1, NETXEN_ADDR_OCM1_MAX)) {
1594                if (adapter->ahw.pci_len0 != 0) {
1595                        return netxen_nic_pci_mem_access_direct(adapter,
1596                                        off, data, 0);
1597                }
1598        }
1599
1600        return -EIO;
1601
1602correct:
1603        spin_lock(&adapter->ahw.mem_lock);
1604        netxen_nic_pci_set_crbwindow_128M(adapter, 0);
1605
1606        writel(off_lo, (mem_crb + MIU_TEST_AGT_ADDR_LO));
1607        writel(off_hi, (mem_crb + addr_hi));
1608        writel(TA_CTL_ENABLE, (mem_crb + TEST_AGT_CTRL));
1609        writel((TA_CTL_START|TA_CTL_ENABLE), (mem_crb + TEST_AGT_CTRL));
1610
1611        for (j = 0; j < MAX_CTL_CHECK; j++) {
1612                temp = readl(mem_crb + TEST_AGT_CTRL);
1613                if ((temp & TA_CTL_BUSY) == 0)
1614                        break;
1615        }
1616
1617        if (j >= MAX_CTL_CHECK) {
1618                if (printk_ratelimit())
1619                        dev_err(&adapter->pdev->dev,
1620                                        "failed to read through agent\n");
1621                ret = -EIO;
1622        } else {
1623
1624                temp = readl(mem_crb + data_hi);
1625                val = ((u64)temp << 32);
1626                val |= readl(mem_crb + data_lo);
1627                *data = val;
1628                ret = 0;
1629        }
1630
1631        netxen_nic_pci_set_crbwindow_128M(adapter, NETXEN_WINDOW_ONE);
1632        spin_unlock(&adapter->ahw.mem_lock);
1633
1634        return ret;
1635}
1636
1637static int
1638netxen_nic_pci_mem_write_2M(struct netxen_adapter *adapter,
1639                u64 off, u64 data)
1640{
1641        int j, ret;
1642        u32 temp, off8;
1643        void __iomem *mem_crb;
1644
1645        /* Only 64-bit aligned access */
1646        if (off & 7)
1647                return -EIO;
1648
1649        /* P3 onward, test agent base for MIU and SIU is same */
1650        if (ADDR_IN_RANGE(off, NETXEN_ADDR_QDR_NET,
1651                                NETXEN_ADDR_QDR_NET_MAX_P3)) {
1652                mem_crb = netxen_get_ioaddr(adapter,
1653                                NETXEN_CRB_QDR_NET+MIU_TEST_AGT_BASE);
1654                goto correct;
1655        }
1656
1657        if (ADDR_IN_RANGE(off, NETXEN_ADDR_DDR_NET, NETXEN_ADDR_DDR_NET_MAX)) {
1658                mem_crb = netxen_get_ioaddr(adapter,
1659                                NETXEN_CRB_DDR_NET+MIU_TEST_AGT_BASE);
1660                goto correct;
1661        }
1662
1663        if (ADDR_IN_RANGE(off, NETXEN_ADDR_OCM0, NETXEN_ADDR_OCM0_MAX))
1664                return netxen_nic_pci_mem_access_direct(adapter, off, &data, 1);
1665
1666        return -EIO;
1667
1668correct:
1669        off8 = off & 0xfffffff8;
1670
1671        spin_lock(&adapter->ahw.mem_lock);
1672
1673        writel(off8, (mem_crb + MIU_TEST_AGT_ADDR_LO));
1674        writel(0, (mem_crb + MIU_TEST_AGT_ADDR_HI));
1675
1676        writel(data & 0xffffffff,
1677                        mem_crb + MIU_TEST_AGT_WRDATA_LO);
1678        writel((data >> 32) & 0xffffffff,
1679                        mem_crb + MIU_TEST_AGT_WRDATA_HI);
1680
1681        writel((TA_CTL_ENABLE | TA_CTL_WRITE), (mem_crb + TEST_AGT_CTRL));
1682        writel((TA_CTL_START | TA_CTL_ENABLE | TA_CTL_WRITE),
1683                        (mem_crb + TEST_AGT_CTRL));
1684
1685        for (j = 0; j < MAX_CTL_CHECK; j++) {
1686                temp = readl(mem_crb + TEST_AGT_CTRL);
1687                if ((temp & TA_CTL_BUSY) == 0)
1688                        break;
1689        }
1690
1691        if (j >= MAX_CTL_CHECK) {
1692                if (printk_ratelimit())
1693                        dev_err(&adapter->pdev->dev,
1694                                        "failed to write through agent\n");
1695                ret = -EIO;
1696        } else
1697                ret = 0;
1698
1699        spin_unlock(&adapter->ahw.mem_lock);
1700
1701        return ret;
1702}
1703
1704static int
1705netxen_nic_pci_mem_read_2M(struct netxen_adapter *adapter,
1706                u64 off, u64 *data)
1707{
1708        int j, ret;
1709        u32 temp, off8;
1710        u64 val;
1711        void __iomem *mem_crb;
1712
1713        /* Only 64-bit aligned access */
1714        if (off & 7)
1715                return -EIO;
1716
1717        /* P3 onward, test agent base for MIU and SIU is same */
1718        if (ADDR_IN_RANGE(off, NETXEN_ADDR_QDR_NET,
1719                                NETXEN_ADDR_QDR_NET_MAX_P3)) {
1720                mem_crb = netxen_get_ioaddr(adapter,
1721                                NETXEN_CRB_QDR_NET+MIU_TEST_AGT_BASE);
1722                goto correct;
1723        }
1724
1725        if (ADDR_IN_RANGE(off, NETXEN_ADDR_DDR_NET, NETXEN_ADDR_DDR_NET_MAX)) {
1726                mem_crb = netxen_get_ioaddr(adapter,
1727                                NETXEN_CRB_DDR_NET+MIU_TEST_AGT_BASE);
1728                goto correct;
1729        }
1730
1731        if (ADDR_IN_RANGE(off, NETXEN_ADDR_OCM0, NETXEN_ADDR_OCM0_MAX)) {
1732                return netxen_nic_pci_mem_access_direct(adapter,
1733                                off, data, 0);
1734        }
1735
1736        return -EIO;
1737
1738correct:
1739        off8 = off & 0xfffffff8;
1740
1741        spin_lock(&adapter->ahw.mem_lock);
1742
1743        writel(off8, (mem_crb + MIU_TEST_AGT_ADDR_LO));
1744        writel(0, (mem_crb + MIU_TEST_AGT_ADDR_HI));
1745        writel(TA_CTL_ENABLE, (mem_crb + TEST_AGT_CTRL));
1746        writel((TA_CTL_START | TA_CTL_ENABLE), (mem_crb + TEST_AGT_CTRL));
1747
1748        for (j = 0; j < MAX_CTL_CHECK; j++) {
1749                temp = readl(mem_crb + TEST_AGT_CTRL);
1750                if ((temp & TA_CTL_BUSY) == 0)
1751                        break;
1752        }
1753
1754        if (j >= MAX_CTL_CHECK) {
1755                if (printk_ratelimit())
1756                        dev_err(&adapter->pdev->dev,
1757                                        "failed to read through agent\n");
1758                ret = -EIO;
1759        } else {
1760                val = (u64)(readl(mem_crb + MIU_TEST_AGT_RDDATA_HI)) << 32;
1761                val |= readl(mem_crb + MIU_TEST_AGT_RDDATA_LO);
1762                *data = val;
1763                ret = 0;
1764        }
1765
1766        spin_unlock(&adapter->ahw.mem_lock);
1767
1768        return ret;
1769}
1770
1771void
1772netxen_setup_hwops(struct netxen_adapter *adapter)
1773{
1774        adapter->init_port = netxen_niu_xg_init_port;
1775        adapter->stop_port = netxen_niu_disable_xg_port;
1776
1777        if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1778                adapter->crb_read = netxen_nic_hw_read_wx_128M,
1779                adapter->crb_write = netxen_nic_hw_write_wx_128M,
1780                adapter->pci_set_window = netxen_nic_pci_set_window_128M,
1781                adapter->pci_mem_read = netxen_nic_pci_mem_read_128M,
1782                adapter->pci_mem_write = netxen_nic_pci_mem_write_128M,
1783                adapter->io_read = netxen_nic_io_read_128M,
1784                adapter->io_write = netxen_nic_io_write_128M,
1785
1786                adapter->macaddr_set = netxen_p2_nic_set_mac_addr;
1787                adapter->set_multi = netxen_p2_nic_set_multi;
1788                adapter->set_mtu = netxen_nic_set_mtu_xgb;
1789                adapter->set_promisc = netxen_p2_nic_set_promisc;
1790
1791        } else {
1792                adapter->crb_read = netxen_nic_hw_read_wx_2M,
1793                adapter->crb_write = netxen_nic_hw_write_wx_2M,
1794                adapter->pci_set_window = netxen_nic_pci_set_window_2M,
1795                adapter->pci_mem_read = netxen_nic_pci_mem_read_2M,
1796                adapter->pci_mem_write = netxen_nic_pci_mem_write_2M,
1797                adapter->io_read = netxen_nic_io_read_2M,
1798                adapter->io_write = netxen_nic_io_write_2M,
1799
1800                adapter->set_mtu = nx_fw_cmd_set_mtu;
1801                adapter->set_promisc = netxen_p3_nic_set_promisc;
1802                adapter->macaddr_set = netxen_p3_nic_set_mac_addr;
1803                adapter->set_multi = netxen_p3_nic_set_multi;
1804
1805                adapter->phy_read = nx_fw_cmd_query_phy;
1806                adapter->phy_write = nx_fw_cmd_set_phy;
1807        }
1808}
1809
1810int netxen_nic_get_board_info(struct netxen_adapter *adapter)
1811{
1812        int offset, board_type, magic;
1813        struct pci_dev *pdev = adapter->pdev;
1814
1815        offset = NX_FW_MAGIC_OFFSET;
1816        if (netxen_rom_fast_read(adapter, offset, &magic))
1817                return -EIO;
1818
1819        if (magic != NETXEN_BDINFO_MAGIC) {
1820                dev_err(&pdev->dev, "invalid board config, magic=%08x\n",
1821                        magic);
1822                return -EIO;
1823        }
1824
1825        offset = NX_BRDTYPE_OFFSET;
1826        if (netxen_rom_fast_read(adapter, offset, &board_type))
1827                return -EIO;
1828
1829        if (board_type == NETXEN_BRDTYPE_P3_4_GB_MM) {
1830                u32 gpio = NXRD32(adapter, NETXEN_ROMUSB_GLB_PAD_GPIO_I);
1831                if ((gpio & 0x8000) == 0)
1832                        board_type = NETXEN_BRDTYPE_P3_10G_TP;
1833        }
1834
1835        adapter->ahw.board_type = board_type;
1836
1837        switch (board_type) {
1838        case NETXEN_BRDTYPE_P2_SB35_4G:
1839                adapter->ahw.port_type = NETXEN_NIC_GBE;
1840                break;
1841        case NETXEN_BRDTYPE_P2_SB31_10G:
1842        case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
1843        case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
1844        case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
1845        case NETXEN_BRDTYPE_P3_HMEZ:
1846        case NETXEN_BRDTYPE_P3_XG_LOM:
1847        case NETXEN_BRDTYPE_P3_10G_CX4:
1848        case NETXEN_BRDTYPE_P3_10G_CX4_LP:
1849        case NETXEN_BRDTYPE_P3_IMEZ:
1850        case NETXEN_BRDTYPE_P3_10G_SFP_PLUS:
1851        case NETXEN_BRDTYPE_P3_10G_SFP_CT:
1852        case NETXEN_BRDTYPE_P3_10G_SFP_QT:
1853        case NETXEN_BRDTYPE_P3_10G_XFP:
1854        case NETXEN_BRDTYPE_P3_10000_BASE_T:
1855                adapter->ahw.port_type = NETXEN_NIC_XGBE;
1856                break;
1857        case NETXEN_BRDTYPE_P1_BD:
1858        case NETXEN_BRDTYPE_P1_SB:
1859        case NETXEN_BRDTYPE_P1_SMAX:
1860        case NETXEN_BRDTYPE_P1_SOCK:
1861        case NETXEN_BRDTYPE_P3_REF_QG:
1862        case NETXEN_BRDTYPE_P3_4_GB:
1863        case NETXEN_BRDTYPE_P3_4_GB_MM:
1864                adapter->ahw.port_type = NETXEN_NIC_GBE;
1865                break;
1866        case NETXEN_BRDTYPE_P3_10G_TP:
1867                adapter->ahw.port_type = (adapter->portnum < 2) ?
1868                        NETXEN_NIC_XGBE : NETXEN_NIC_GBE;
1869                break;
1870        default:
1871                dev_err(&pdev->dev, "unknown board type %x\n", board_type);
1872                adapter->ahw.port_type = NETXEN_NIC_XGBE;
1873                break;
1874        }
1875
1876        return 0;
1877}
1878
1879/* NIU access sections */
1880static int netxen_nic_set_mtu_xgb(struct netxen_adapter *adapter, int new_mtu)
1881{
1882        new_mtu += MTU_FUDGE_FACTOR;
1883        if (adapter->physical_port == 0)
1884                NXWR32(adapter, NETXEN_NIU_XGE_MAX_FRAME_SIZE, new_mtu);
1885        else
1886                NXWR32(adapter, NETXEN_NIU_XG1_MAX_FRAME_SIZE, new_mtu);
1887        return 0;
1888}
1889
1890void netxen_nic_set_link_parameters(struct netxen_adapter *adapter)
1891{
1892        __u32 status;
1893        __u32 autoneg;
1894        __u32 port_mode;
1895
1896        if (!netif_carrier_ok(adapter->netdev)) {
1897                adapter->link_speed   = 0;
1898                adapter->link_duplex  = -1;
1899                adapter->link_autoneg = AUTONEG_ENABLE;
1900                return;
1901        }
1902
1903        if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
1904                port_mode = NXRD32(adapter, NETXEN_PORT_MODE_ADDR);
1905                if (port_mode == NETXEN_PORT_MODE_802_3_AP) {
1906                        adapter->link_speed   = SPEED_1000;
1907                        adapter->link_duplex  = DUPLEX_FULL;
1908                        adapter->link_autoneg = AUTONEG_DISABLE;
1909                        return;
1910                }
1911
1912                if (adapter->phy_read &&
1913                    adapter->phy_read(adapter,
1914                                      NETXEN_NIU_GB_MII_MGMT_ADDR_PHY_STATUS,
1915                                      &status) == 0) {
1916                        if (netxen_get_phy_link(status)) {
1917                                switch (netxen_get_phy_speed(status)) {
1918                                case 0:
1919                                        adapter->link_speed = SPEED_10;
1920                                        break;
1921                                case 1:
1922                                        adapter->link_speed = SPEED_100;
1923                                        break;
1924                                case 2:
1925                                        adapter->link_speed = SPEED_1000;
1926                                        break;
1927                                default:
1928                                        adapter->link_speed = 0;
1929                                        break;
1930                                }
1931                                switch (netxen_get_phy_duplex(status)) {
1932                                case 0:
1933                                        adapter->link_duplex = DUPLEX_HALF;
1934                                        break;
1935                                case 1:
1936                                        adapter->link_duplex = DUPLEX_FULL;
1937                                        break;
1938                                default:
1939                                        adapter->link_duplex = -1;
1940                                        break;
1941                                }
1942                                if (adapter->phy_read &&
1943                                    adapter->phy_read(adapter,
1944                                                      NETXEN_NIU_GB_MII_MGMT_ADDR_AUTONEG,
1945                                                      &autoneg) != 0)
1946                                        adapter->link_autoneg = autoneg;
1947                        } else
1948                                goto link_down;
1949                } else {
1950                      link_down:
1951                        adapter->link_speed = 0;
1952                        adapter->link_duplex = -1;
1953                }
1954        }
1955}
1956
1957int
1958netxen_nic_wol_supported(struct netxen_adapter *adapter)
1959{
1960        u32 wol_cfg;
1961
1962        if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
1963                return 0;
1964
1965        wol_cfg = NXRD32(adapter, NETXEN_WOL_CONFIG_NV);
1966        if (wol_cfg & (1UL << adapter->portnum)) {
1967                wol_cfg = NXRD32(adapter, NETXEN_WOL_CONFIG);
1968                if (wol_cfg & (1 << adapter->portnum))
1969                        return 1;
1970        }
1971
1972        return 0;
1973}
1974
1975static u32 netxen_md_cntrl(struct netxen_adapter *adapter,
1976                        struct netxen_minidump_template_hdr *template_hdr,
1977                        struct netxen_minidump_entry_crb *crtEntry)
1978{
1979        int loop_cnt, i, rv = 0, timeout_flag;
1980        u32 op_count, stride;
1981        u32 opcode, read_value, addr;
1982        unsigned long timeout, timeout_jiffies;
1983        addr = crtEntry->addr;
1984        op_count = crtEntry->op_count;
1985        stride = crtEntry->addr_stride;
1986
1987        for (loop_cnt = 0; loop_cnt < op_count; loop_cnt++) {
1988                for (i = 0; i < sizeof(crtEntry->opcode) * 8; i++) {
1989                        opcode = (crtEntry->opcode & (0x1 << i));
1990                        if (opcode) {
1991                                switch (opcode) {
1992                                case NX_DUMP_WCRB:
1993                                        NX_WR_DUMP_REG(addr,
1994                                                adapter->ahw.pci_base0,
1995                                                        crtEntry->value_1);
1996                                        break;
1997                                case NX_DUMP_RWCRB:
1998                                        NX_RD_DUMP_REG(addr,
1999                                                adapter->ahw.pci_base0,
2000                                                                &read_value);
2001                                        NX_WR_DUMP_REG(addr,
2002                                                adapter->ahw.pci_base0,
2003                                                                read_value);
2004                                        break;
2005                                case NX_DUMP_ANDCRB:
2006                                        NX_RD_DUMP_REG(addr,
2007                                                adapter->ahw.pci_base0,
2008                                                                &read_value);
2009                                        read_value &= crtEntry->value_2;
2010                                        NX_WR_DUMP_REG(addr,
2011                                                adapter->ahw.pci_base0,
2012                                                                read_value);
2013                                        break;
2014                                case NX_DUMP_ORCRB:
2015                                        NX_RD_DUMP_REG(addr,
2016                                                adapter->ahw.pci_base0,
2017                                                                &read_value);
2018                                        read_value |= crtEntry->value_3;
2019                                        NX_WR_DUMP_REG(addr,
2020                                                adapter->ahw.pci_base0,
2021                                                                read_value);
2022                                        break;
2023                                case NX_DUMP_POLLCRB:
2024                                        timeout = crtEntry->poll_timeout;
2025                                        NX_RD_DUMP_REG(addr,
2026                                                adapter->ahw.pci_base0,
2027                                                                &read_value);
2028                                        timeout_jiffies =
2029                                        msecs_to_jiffies(timeout) + jiffies;
2030                                        for (timeout_flag = 0;
2031                                                !timeout_flag
2032                                        && ((read_value & crtEntry->value_2)
2033                                        != crtEntry->value_1);) {
2034                                                if (time_after(jiffies,
2035                                                        timeout_jiffies))
2036                                                        timeout_flag = 1;
2037                                        NX_RD_DUMP_REG(addr,
2038                                                        adapter->ahw.pci_base0,
2039                                                                &read_value);
2040                                        }
2041
2042                                        if (timeout_flag) {
2043                                                dev_err(&adapter->pdev->dev, "%s : "
2044                                                        "Timeout in poll_crb control operation.\n"
2045                                                                , __func__);
2046                                                return -1;
2047                                        }
2048                                        break;
2049                                case NX_DUMP_RD_SAVE:
2050                                        /* Decide which address to use */
2051                                        if (crtEntry->state_index_a)
2052                                                addr =
2053                                                template_hdr->saved_state_array
2054                                                [crtEntry->state_index_a];
2055                                        NX_RD_DUMP_REG(addr,
2056                                                adapter->ahw.pci_base0,
2057                                                                &read_value);
2058                                        template_hdr->saved_state_array
2059                                        [crtEntry->state_index_v]
2060                                                = read_value;
2061                                        break;
2062                                case NX_DUMP_WRT_SAVED:
2063                                        /* Decide which value to use */
2064                                        if (crtEntry->state_index_v)
2065                                                read_value =
2066                                                template_hdr->saved_state_array
2067                                                [crtEntry->state_index_v];
2068                                        else
2069                                                read_value = crtEntry->value_1;
2070
2071                                        /* Decide which address to use */
2072                                        if (crtEntry->state_index_a)
2073                                                addr =
2074                                                template_hdr->saved_state_array
2075                                                [crtEntry->state_index_a];
2076
2077                                        NX_WR_DUMP_REG(addr,
2078                                                adapter->ahw.pci_base0,
2079                                                                read_value);
2080                                        break;
2081                                case NX_DUMP_MOD_SAVE_ST:
2082                                        read_value =
2083                                        template_hdr->saved_state_array
2084                                                [crtEntry->state_index_v];
2085                                        read_value <<= crtEntry->shl;
2086                                        read_value >>= crtEntry->shr;
2087                                        if (crtEntry->value_2)
2088                                                read_value &=
2089                                                crtEntry->value_2;
2090                                        read_value |= crtEntry->value_3;
2091                                        read_value += crtEntry->value_1;
2092                                        /* Write value back to state area.*/
2093                                        template_hdr->saved_state_array
2094                                                [crtEntry->state_index_v]
2095                                                        = read_value;
2096                                        break;
2097                                default:
2098                                        rv = 1;
2099                                        break;
2100                                }
2101                        }
2102                }
2103                addr = addr + stride;
2104        }
2105        return rv;
2106}
2107
2108/* Read memory or MN */
2109static u32
2110netxen_md_rdmem(struct netxen_adapter *adapter,
2111                struct netxen_minidump_entry_rdmem
2112                        *memEntry, u64 *data_buff)
2113{
2114        u64 addr, value = 0;
2115        int i = 0, loop_cnt;
2116
2117        addr = (u64)memEntry->read_addr;
2118        loop_cnt = memEntry->read_data_size;    /* This is size in bytes */
2119        loop_cnt /= sizeof(value);
2120
2121        for (i = 0; i < loop_cnt; i++) {
2122                if (netxen_nic_pci_mem_read_2M(adapter, addr, &value))
2123                        goto out;
2124                *data_buff++ = value;
2125                addr += sizeof(value);
2126        }
2127out:
2128        return i * sizeof(value);
2129}
2130
2131/* Read CRB operation */
2132static u32 netxen_md_rd_crb(struct netxen_adapter *adapter,
2133                        struct netxen_minidump_entry_crb
2134                                *crbEntry, u32 *data_buff)
2135{
2136        int loop_cnt;
2137        u32 op_count, addr, stride, value;
2138
2139        addr = crbEntry->addr;
2140        op_count = crbEntry->op_count;
2141        stride = crbEntry->addr_stride;
2142
2143        for (loop_cnt = 0; loop_cnt < op_count; loop_cnt++) {
2144                NX_RD_DUMP_REG(addr, adapter->ahw.pci_base0, &value);
2145                *data_buff++ = addr;
2146                *data_buff++ = value;
2147                addr = addr + stride;
2148        }
2149        return loop_cnt * (2 * sizeof(u32));
2150}
2151
2152/* Read ROM */
2153static u32
2154netxen_md_rdrom(struct netxen_adapter *adapter,
2155                        struct netxen_minidump_entry_rdrom
2156                                *romEntry, __le32 *data_buff)
2157{
2158        int i, count = 0;
2159        u32 size, lck_val;
2160        u32 val;
2161        u32 fl_addr, waddr, raddr;
2162        fl_addr = romEntry->read_addr;
2163        size = romEntry->read_data_size/4;
2164lock_try:
2165        lck_val = readl((void __iomem *)(adapter->ahw.pci_base0 +
2166                                                        NX_FLASH_SEM2_LK));
2167        if (!lck_val && count < MAX_CTL_CHECK) {
2168                msleep(20);
2169                count++;
2170                goto lock_try;
2171        }
2172        writel(adapter->ahw.pci_func, (void __iomem *)(adapter->ahw.pci_base0 +
2173                                                        NX_FLASH_LOCK_ID));
2174        for (i = 0; i < size; i++) {
2175                waddr = fl_addr & 0xFFFF0000;
2176                NX_WR_DUMP_REG(FLASH_ROM_WINDOW, adapter->ahw.pci_base0, waddr);
2177                raddr = FLASH_ROM_DATA + (fl_addr & 0x0000FFFF);
2178                NX_RD_DUMP_REG(raddr, adapter->ahw.pci_base0, &val);
2179                *data_buff++ = cpu_to_le32(val);
2180                fl_addr += sizeof(val);
2181        }
2182        readl((void __iomem *)(adapter->ahw.pci_base0 + NX_FLASH_SEM2_ULK));
2183        return romEntry->read_data_size;
2184}
2185
2186/* Handle L2 Cache */
2187static u32
2188netxen_md_L2Cache(struct netxen_adapter *adapter,
2189                                struct netxen_minidump_entry_cache
2190                                        *cacheEntry, u32 *data_buff)
2191{
2192        int loop_cnt, i, k, timeout_flag = 0;
2193        u32 addr, read_addr, read_value, cntrl_addr, tag_reg_addr;
2194        u32 tag_value, read_cnt;
2195        u8 cntl_value_w, cntl_value_r;
2196        unsigned long timeout, timeout_jiffies;
2197
2198        loop_cnt = cacheEntry->op_count;
2199        read_addr = cacheEntry->read_addr;
2200        cntrl_addr = cacheEntry->control_addr;
2201        cntl_value_w = (u32) cacheEntry->write_value;
2202        tag_reg_addr = cacheEntry->tag_reg_addr;
2203        tag_value = cacheEntry->init_tag_value;
2204        read_cnt = cacheEntry->read_addr_cnt;
2205
2206        for (i = 0; i < loop_cnt; i++) {
2207                NX_WR_DUMP_REG(tag_reg_addr, adapter->ahw.pci_base0, tag_value);
2208                if (cntl_value_w)
2209                        NX_WR_DUMP_REG(cntrl_addr, adapter->ahw.pci_base0,
2210                                        (u32)cntl_value_w);
2211                if (cacheEntry->poll_mask) {
2212                        timeout = cacheEntry->poll_wait;
2213                        NX_RD_DUMP_REG(cntrl_addr, adapter->ahw.pci_base0,
2214                                                        &cntl_value_r);
2215                        timeout_jiffies = msecs_to_jiffies(timeout) + jiffies;
2216                        for (timeout_flag = 0; !timeout_flag &&
2217                        ((cntl_value_r & cacheEntry->poll_mask) != 0);) {
2218                                if (time_after(jiffies, timeout_jiffies))
2219                                        timeout_flag = 1;
2220                                NX_RD_DUMP_REG(cntrl_addr,
2221                                        adapter->ahw.pci_base0,
2222                                                        &cntl_value_r);
2223                        }
2224                        if (timeout_flag) {
2225                                dev_err(&adapter->pdev->dev,
2226                                                "Timeout in processing L2 Tag poll.\n");
2227                                return -1;
2228                        }
2229                }
2230                addr = read_addr;
2231                for (k = 0; k < read_cnt; k++) {
2232                        NX_RD_DUMP_REG(addr, adapter->ahw.pci_base0,
2233                                        &read_value);
2234                        *data_buff++ = read_value;
2235                        addr += cacheEntry->read_addr_stride;
2236                }
2237                tag_value += cacheEntry->tag_value_stride;
2238        }
2239        return read_cnt * loop_cnt * sizeof(read_value);
2240}
2241
2242
2243/* Handle L1 Cache */
2244static u32 netxen_md_L1Cache(struct netxen_adapter *adapter,
2245                                struct netxen_minidump_entry_cache
2246                                        *cacheEntry, u32 *data_buff)
2247{
2248        int i, k, loop_cnt;
2249        u32 addr, read_addr, read_value, cntrl_addr, tag_reg_addr;
2250        u32 tag_value, read_cnt;
2251        u8 cntl_value_w;
2252
2253        loop_cnt = cacheEntry->op_count;
2254        read_addr = cacheEntry->read_addr;
2255        cntrl_addr = cacheEntry->control_addr;
2256        cntl_value_w = (u32) cacheEntry->write_value;
2257        tag_reg_addr = cacheEntry->tag_reg_addr;
2258        tag_value = cacheEntry->init_tag_value;
2259        read_cnt = cacheEntry->read_addr_cnt;
2260
2261        for (i = 0; i < loop_cnt; i++) {
2262                NX_WR_DUMP_REG(tag_reg_addr, adapter->ahw.pci_base0, tag_value);
2263                NX_WR_DUMP_REG(cntrl_addr, adapter->ahw.pci_base0,
2264                                                (u32) cntl_value_w);
2265                addr = read_addr;
2266                for (k = 0; k < read_cnt; k++) {
2267                        NX_RD_DUMP_REG(addr,
2268                                adapter->ahw.pci_base0,
2269                                                &read_value);
2270                        *data_buff++ = read_value;
2271                        addr += cacheEntry->read_addr_stride;
2272                }
2273                tag_value += cacheEntry->tag_value_stride;
2274        }
2275        return read_cnt * loop_cnt * sizeof(read_value);
2276}
2277
2278/* Reading OCM memory */
2279static u32
2280netxen_md_rdocm(struct netxen_adapter *adapter,
2281                                struct netxen_minidump_entry_rdocm
2282                                        *ocmEntry, u32 *data_buff)
2283{
2284        int i, loop_cnt;
2285        u32 value;
2286        void __iomem *addr;
2287        addr = (ocmEntry->read_addr + adapter->ahw.pci_base0);
2288        loop_cnt = ocmEntry->op_count;
2289
2290        for (i = 0; i < loop_cnt; i++) {
2291                value = readl(addr);
2292                *data_buff++ = value;
2293                addr += ocmEntry->read_addr_stride;
2294        }
2295        return i * sizeof(u32);
2296}
2297
2298/* Read MUX data */
2299static u32
2300netxen_md_rdmux(struct netxen_adapter *adapter, struct netxen_minidump_entry_mux
2301                                        *muxEntry, u32 *data_buff)
2302{
2303        int loop_cnt = 0;
2304        u32 read_addr, read_value, select_addr, sel_value;
2305
2306        read_addr = muxEntry->read_addr;
2307        sel_value = muxEntry->select_value;
2308        select_addr = muxEntry->select_addr;
2309
2310        for (loop_cnt = 0; loop_cnt < muxEntry->op_count; loop_cnt++) {
2311                NX_WR_DUMP_REG(select_addr, adapter->ahw.pci_base0, sel_value);
2312                NX_RD_DUMP_REG(read_addr, adapter->ahw.pci_base0, &read_value);
2313                *data_buff++ = sel_value;
2314                *data_buff++ = read_value;
2315                sel_value += muxEntry->select_value_stride;
2316        }
2317        return loop_cnt * (2 * sizeof(u32));
2318}
2319
2320/* Handling Queue State Reads */
2321static u32
2322netxen_md_rdqueue(struct netxen_adapter *adapter,
2323                                struct netxen_minidump_entry_queue
2324                                        *queueEntry, u32 *data_buff)
2325{
2326        int loop_cnt, k;
2327        u32 queue_id, read_addr, read_value, read_stride, select_addr, read_cnt;
2328
2329        read_cnt = queueEntry->read_addr_cnt;
2330        read_stride = queueEntry->read_addr_stride;
2331        select_addr = queueEntry->select_addr;
2332
2333        for (loop_cnt = 0, queue_id = 0; loop_cnt < queueEntry->op_count;
2334                                 loop_cnt++) {
2335                NX_WR_DUMP_REG(select_addr, adapter->ahw.pci_base0, queue_id);
2336                read_addr = queueEntry->read_addr;
2337                for (k = 0; k < read_cnt; k--) {
2338                        NX_RD_DUMP_REG(read_addr, adapter->ahw.pci_base0,
2339                                                        &read_value);
2340                        *data_buff++ = read_value;
2341                        read_addr += read_stride;
2342                }
2343                queue_id += queueEntry->queue_id_stride;
2344        }
2345        return loop_cnt * (read_cnt * sizeof(read_value));
2346}
2347
2348
2349/*
2350* We catch an error where driver does not read
2351* as much data as we expect from the entry.
2352*/
2353
2354static int netxen_md_entry_err_chk(struct netxen_adapter *adapter,
2355                                struct netxen_minidump_entry *entry, int esize)
2356{
2357        if (esize < 0) {
2358                entry->hdr.driver_flags |= NX_DUMP_SKIP;
2359                return esize;
2360        }
2361        if (esize != entry->hdr.entry_capture_size) {
2362                entry->hdr.entry_capture_size = esize;
2363                entry->hdr.driver_flags |= NX_DUMP_SIZE_ERR;
2364                dev_info(&adapter->pdev->dev,
2365                        "Invalidate dump, Type:%d\tMask:%d\tSize:%dCap_size:%d\n",
2366                        entry->hdr.entry_type, entry->hdr.entry_capture_mask,
2367                        esize, entry->hdr.entry_capture_size);
2368                dev_info(&adapter->pdev->dev, "Aborting further dump capture\n");
2369        }
2370        return 0;
2371}
2372
2373static int netxen_parse_md_template(struct netxen_adapter *adapter)
2374{
2375        int num_of_entries, buff_level, e_cnt, esize;
2376        int end_cnt = 0, rv = 0, sane_start = 0, sane_end = 0;
2377        char *dbuff;
2378        void *template_buff = adapter->mdump.md_template;
2379        char *dump_buff = adapter->mdump.md_capture_buff;
2380        int capture_mask = adapter->mdump.md_capture_mask;
2381        struct netxen_minidump_template_hdr *template_hdr;
2382        struct netxen_minidump_entry *entry;
2383
2384        if ((capture_mask & 0x3) != 0x3) {
2385                dev_err(&adapter->pdev->dev, "Capture mask %02x below minimum needed "
2386                        "for valid firmware dump\n", capture_mask);
2387                return -EINVAL;
2388        }
2389        template_hdr = (struct netxen_minidump_template_hdr *) template_buff;
2390        num_of_entries = template_hdr->num_of_entries;
2391        entry = (struct netxen_minidump_entry *) ((char *) template_buff +
2392                                template_hdr->first_entry_offset);
2393        memcpy(dump_buff, template_buff, adapter->mdump.md_template_size);
2394        dump_buff = dump_buff + adapter->mdump.md_template_size;
2395
2396        if (template_hdr->entry_type == TLHDR)
2397                sane_start = 1;
2398
2399        for (e_cnt = 0, buff_level = 0; e_cnt < num_of_entries; e_cnt++) {
2400                if (!(entry->hdr.entry_capture_mask & capture_mask)) {
2401                        entry->hdr.driver_flags |= NX_DUMP_SKIP;
2402                        entry = (struct netxen_minidump_entry *)
2403                                ((char *) entry + entry->hdr.entry_size);
2404                        continue;
2405                }
2406                switch (entry->hdr.entry_type) {
2407                case RDNOP:
2408                        entry->hdr.driver_flags |= NX_DUMP_SKIP;
2409                        break;
2410                case RDEND:
2411                        entry->hdr.driver_flags |= NX_DUMP_SKIP;
2412                        if (!sane_end)
2413                                end_cnt = e_cnt;
2414                        sane_end += 1;
2415                        break;
2416                case CNTRL:
2417                        rv = netxen_md_cntrl(adapter,
2418                                template_hdr, (void *)entry);
2419                        if (rv)
2420                                entry->hdr.driver_flags |= NX_DUMP_SKIP;
2421                        break;
2422                case RDCRB:
2423                        dbuff = dump_buff + buff_level;
2424                        esize = netxen_md_rd_crb(adapter,
2425                                        (void *) entry, (void *) dbuff);
2426                        rv = netxen_md_entry_err_chk
2427                                (adapter, entry, esize);
2428                        if (rv < 0)
2429                                break;
2430                        buff_level += esize;
2431                        break;
2432                case RDMN:
2433                case RDMEM:
2434                        dbuff = dump_buff + buff_level;
2435                        esize = netxen_md_rdmem(adapter,
2436                                (void *) entry, (void *) dbuff);
2437                        rv = netxen_md_entry_err_chk
2438                                (adapter, entry, esize);
2439                        if (rv < 0)
2440                                break;
2441                        buff_level += esize;
2442                        break;
2443                case BOARD:
2444                case RDROM:
2445                        dbuff = dump_buff + buff_level;
2446                        esize = netxen_md_rdrom(adapter,
2447                                (void *) entry, (void *) dbuff);
2448                        rv = netxen_md_entry_err_chk
2449                                (adapter, entry, esize);
2450                        if (rv < 0)
2451                                break;
2452                        buff_level += esize;
2453                        break;
2454                case L2ITG:
2455                case L2DTG:
2456                case L2DAT:
2457                case L2INS:
2458                        dbuff = dump_buff + buff_level;
2459                        esize = netxen_md_L2Cache(adapter,
2460                                (void *) entry, (void *) dbuff);
2461                        rv = netxen_md_entry_err_chk
2462                                (adapter, entry, esize);
2463                        if (rv < 0)
2464                                break;
2465                        buff_level += esize;
2466                        break;
2467                case L1DAT:
2468                case L1INS:
2469                        dbuff = dump_buff + buff_level;
2470                        esize = netxen_md_L1Cache(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 RDOCM:
2479                        dbuff = dump_buff + buff_level;
2480                        esize = netxen_md_rdocm(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 RDMUX:
2489                        dbuff = dump_buff + buff_level;
2490                        esize = netxen_md_rdmux(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                case QUEUE:
2499                        dbuff = dump_buff + buff_level;
2500                        esize = netxen_md_rdqueue(adapter,
2501                                (void *) entry, (void *) dbuff);
2502                        rv = netxen_md_entry_err_chk
2503                                (adapter, entry, esize);
2504                        if (rv  < 0)
2505                                break;
2506                        buff_level += esize;
2507                        break;
2508                default:
2509                        entry->hdr.driver_flags |= NX_DUMP_SKIP;
2510                        break;
2511                }
2512                /* Next entry in the template */
2513                entry = (struct netxen_minidump_entry *)
2514                        ((char *) entry + entry->hdr.entry_size);
2515        }
2516        if (!sane_start || sane_end > 1) {
2517                dev_err(&adapter->pdev->dev,
2518                                "Firmware minidump template configuration error.\n");
2519        }
2520        return 0;
2521}
2522
2523static int
2524netxen_collect_minidump(struct netxen_adapter *adapter)
2525{
2526        int ret = 0;
2527        struct netxen_minidump_template_hdr *hdr;
2528        struct timespec val;
2529        hdr = (struct netxen_minidump_template_hdr *)
2530                                adapter->mdump.md_template;
2531        hdr->driver_capture_mask = adapter->mdump.md_capture_mask;
2532        jiffies_to_timespec(jiffies, &val);
2533        hdr->driver_timestamp = (u32) val.tv_sec;
2534        hdr->driver_info_word2 = adapter->fw_version;
2535        hdr->driver_info_word3 = NXRD32(adapter, CRB_DRIVER_VERSION);
2536        ret = netxen_parse_md_template(adapter);
2537        if (ret)
2538                return ret;
2539
2540        return ret;
2541}
2542
2543
2544void
2545netxen_dump_fw(struct netxen_adapter *adapter)
2546{
2547        struct netxen_minidump_template_hdr *hdr;
2548        int i, k, data_size = 0;
2549        u32 capture_mask;
2550        hdr = (struct netxen_minidump_template_hdr *)
2551                                adapter->mdump.md_template;
2552        capture_mask = adapter->mdump.md_capture_mask;
2553
2554        for (i = 0x2, k = 1; (i & NX_DUMP_MASK_MAX); i <<= 1, k++) {
2555                if (i & capture_mask)
2556                        data_size += hdr->capture_size_array[k];
2557        }
2558        if (!data_size) {
2559                dev_err(&adapter->pdev->dev,
2560                                "Invalid cap sizes for capture_mask=0x%x\n",
2561                        adapter->mdump.md_capture_mask);
2562                return;
2563        }
2564        adapter->mdump.md_capture_size = data_size;
2565        adapter->mdump.md_dump_size = adapter->mdump.md_template_size +
2566                                        adapter->mdump.md_capture_size;
2567        if (!adapter->mdump.md_capture_buff) {
2568                adapter->mdump.md_capture_buff =
2569                                vzalloc(adapter->mdump.md_dump_size);
2570                if (!adapter->mdump.md_capture_buff)
2571                        return;
2572
2573                if (netxen_collect_minidump(adapter)) {
2574                        adapter->mdump.has_valid_dump = 0;
2575                        adapter->mdump.md_dump_size = 0;
2576                        vfree(adapter->mdump.md_capture_buff);
2577                        adapter->mdump.md_capture_buff = NULL;
2578                        dev_err(&adapter->pdev->dev,
2579                                "Error in collecting firmware minidump.\n");
2580                } else {
2581                        adapter->mdump.md_timestamp = jiffies;
2582                        adapter->mdump.has_valid_dump = 1;
2583                        adapter->fw_mdump_rdy = 1;
2584                        dev_info(&adapter->pdev->dev, "%s Successfully "
2585                                "collected fw dump.\n", adapter->netdev->name);
2586                }
2587
2588        } else {
2589                dev_info(&adapter->pdev->dev,
2590                                        "Cannot overwrite previously collected "
2591                                                        "firmware minidump.\n");
2592                adapter->fw_mdump_rdy = 1;
2593                return;
2594        }
2595}
2596