Showing error 1577

User: Jiri Slaby
Error type: Leaving function in locked state
Error type description: Some lock is not unlocked on all paths of a function, so it is leaked
File location: drivers/net/netxen/netxen_nic_hw.c
Line in file: 1167
Project: Linux Kernel
Project version: 2.6.28
Tools: Stanse (1.2)
Entered: 2012-05-29 20:11:37 UTC


Source:

   1/*
   2 * Copyright (C) 2003 - 2006 NetXen, Inc.
   3 * All rights reserved.
   4 *
   5 * This program is free software; you can redistribute it and/or
   6 * modify it under the terms of the GNU General Public License
   7 * as published by the Free Software Foundation; either version 2
   8 * of the License, or (at your option) any later version.
   9 *
  10 * This program is distributed in the hope that it will be useful, but
  11 * WITHOUT ANY WARRANTY; without even the implied warranty of
  12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 * GNU General Public License for more details.
  14 *
  15 * You should have received a copy of the GNU General Public License
  16 * along with this program; if not, write to the Free Software
  17 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
  18 * MA  02111-1307, USA.
  19 *
  20 * The full GNU General Public License is included in this distribution
  21 * in the file called LICENSE.
  22 *
  23 * Contact Information:
  24 *    info@netxen.com
  25 * NetXen,
  26 * 3965 Freedom Circle, Fourth floor,
  27 * Santa Clara, CA 95054
  28 *
  29 *
  30 * Source file for NIC routines to access the Phantom hardware
  31 *
  32 */
  33
  34#include "netxen_nic.h"
  35#include "netxen_nic_hw.h"
  36#include "netxen_nic_phan_reg.h"
  37
  38
  39#include <net/ip.h>
  40
  41#define MASK(n) ((1ULL<<(n))-1)
  42#define MN_WIN(addr) (((addr & 0x1fc0000) >> 1) | ((addr >> 25) & 0x3ff))
  43#define OCM_WIN(addr) (((addr & 0x1ff0000) >> 1) | ((addr >> 25) & 0x3ff))
  44#define MS_WIN(addr) (addr & 0x0ffc0000)
  45
  46#define GET_MEM_OFFS_2M(addr) (addr & MASK(18))
  47
  48#define CRB_BLK(off)        ((off >> 20) & 0x3f)
  49#define CRB_SUBBLK(off)        ((off >> 16) & 0xf)
  50#define CRB_WINDOW_2M        (0x130060)
  51#define CRB_HI(off)        ((crb_hub_agt[CRB_BLK(off)] << 20) | ((off) & 0xf0000))
  52#define CRB_INDIRECT_2M        (0x1e0000UL)
  53
  54#define CRB_WIN_LOCK_TIMEOUT 100000000
  55static crb_128M_2M_block_map_t crb_128M_2M_map[64] = {
  56    {{{0, 0,         0,         0} } },                /* 0: PCI */
  57    {{{1, 0x0100000, 0x0102000, 0x120000},        /* 1: PCIE */
  58          {1, 0x0110000, 0x0120000, 0x130000},
  59          {1, 0x0120000, 0x0122000, 0x124000},
  60          {1, 0x0130000, 0x0132000, 0x126000},
  61          {1, 0x0140000, 0x0142000, 0x128000},
  62          {1, 0x0150000, 0x0152000, 0x12a000},
  63          {1, 0x0160000, 0x0170000, 0x110000},
  64          {1, 0x0170000, 0x0172000, 0x12e000},
  65          {0, 0x0000000, 0x0000000, 0x000000},
  66          {0, 0x0000000, 0x0000000, 0x000000},
  67          {0, 0x0000000, 0x0000000, 0x000000},
  68          {0, 0x0000000, 0x0000000, 0x000000},
  69          {0, 0x0000000, 0x0000000, 0x000000},
  70          {0, 0x0000000, 0x0000000, 0x000000},
  71          {1, 0x01e0000, 0x01e0800, 0x122000},
  72          {0, 0x0000000, 0x0000000, 0x000000} } },
  73        {{{1, 0x0200000, 0x0210000, 0x180000} } },/* 2: MN */
  74    {{{0, 0,         0,         0} } },            /* 3: */
  75    {{{1, 0x0400000, 0x0401000, 0x169000} } },/* 4: P2NR1 */
  76    {{{1, 0x0500000, 0x0510000, 0x140000} } },/* 5: SRE   */
  77    {{{1, 0x0600000, 0x0610000, 0x1c0000} } },/* 6: NIU   */
  78    {{{1, 0x0700000, 0x0704000, 0x1b8000} } },/* 7: QM    */
  79    {{{1, 0x0800000, 0x0802000, 0x170000},  /* 8: SQM0  */
  80      {0, 0x0000000, 0x0000000, 0x000000},
  81      {0, 0x0000000, 0x0000000, 0x000000},
  82      {0, 0x0000000, 0x0000000, 0x000000},
  83      {0, 0x0000000, 0x0000000, 0x000000},
  84      {0, 0x0000000, 0x0000000, 0x000000},
  85      {0, 0x0000000, 0x0000000, 0x000000},
  86      {0, 0x0000000, 0x0000000, 0x000000},
  87      {0, 0x0000000, 0x0000000, 0x000000},
  88      {0, 0x0000000, 0x0000000, 0x000000},
  89      {0, 0x0000000, 0x0000000, 0x000000},
  90      {0, 0x0000000, 0x0000000, 0x000000},
  91      {0, 0x0000000, 0x0000000, 0x000000},
  92      {0, 0x0000000, 0x0000000, 0x000000},
  93      {0, 0x0000000, 0x0000000, 0x000000},
  94      {1, 0x08f0000, 0x08f2000, 0x172000} } },
  95    {{{1, 0x0900000, 0x0902000, 0x174000},        /* 9: SQM1*/
  96      {0, 0x0000000, 0x0000000, 0x000000},
  97      {0, 0x0000000, 0x0000000, 0x000000},
  98      {0, 0x0000000, 0x0000000, 0x000000},
  99      {0, 0x0000000, 0x0000000, 0x000000},
 100      {0, 0x0000000, 0x0000000, 0x000000},
 101      {0, 0x0000000, 0x0000000, 0x000000},
 102      {0, 0x0000000, 0x0000000, 0x000000},
 103      {0, 0x0000000, 0x0000000, 0x000000},
 104      {0, 0x0000000, 0x0000000, 0x000000},
 105      {0, 0x0000000, 0x0000000, 0x000000},
 106      {0, 0x0000000, 0x0000000, 0x000000},
 107      {0, 0x0000000, 0x0000000, 0x000000},
 108      {0, 0x0000000, 0x0000000, 0x000000},
 109      {0, 0x0000000, 0x0000000, 0x000000},
 110      {1, 0x09f0000, 0x09f2000, 0x176000} } },
 111    {{{0, 0x0a00000, 0x0a02000, 0x178000},        /* 10: SQM2*/
 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, 0x0af0000, 0x0af2000, 0x17a000} } },
 127    {{{0, 0x0b00000, 0x0b02000, 0x17c000},        /* 11: SQM3*/
 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, 0x0bf0000, 0x0bf2000, 0x17e000} } },
 143        {{{1, 0x0c00000, 0x0c04000, 0x1d4000} } },/* 12: I2Q */
 144        {{{1, 0x0d00000, 0x0d04000, 0x1a4000} } },/* 13: TMR */
 145        {{{1, 0x0e00000, 0x0e04000, 0x1a0000} } },/* 14: ROMUSB */
 146        {{{1, 0x0f00000, 0x0f01000, 0x164000} } },/* 15: PEG4 */
 147        {{{0, 0x1000000, 0x1004000, 0x1a8000} } },/* 16: XDMA */
 148        {{{1, 0x1100000, 0x1101000, 0x160000} } },/* 17: PEG0 */
 149        {{{1, 0x1200000, 0x1201000, 0x161000} } },/* 18: PEG1 */
 150        {{{1, 0x1300000, 0x1301000, 0x162000} } },/* 19: PEG2 */
 151        {{{1, 0x1400000, 0x1401000, 0x163000} } },/* 20: PEG3 */
 152        {{{1, 0x1500000, 0x1501000, 0x165000} } },/* 21: P2ND */
 153        {{{1, 0x1600000, 0x1601000, 0x166000} } },/* 22: P2NI */
 154        {{{0, 0,         0,         0} } },        /* 23: */
 155        {{{0, 0,         0,         0} } },        /* 24: */
 156        {{{0, 0,         0,         0} } },        /* 25: */
 157        {{{0, 0,         0,         0} } },        /* 26: */
 158        {{{0, 0,         0,         0} } },        /* 27: */
 159        {{{0, 0,         0,         0} } },        /* 28: */
 160        {{{1, 0x1d00000, 0x1d10000, 0x190000} } },/* 29: MS */
 161    {{{1, 0x1e00000, 0x1e01000, 0x16a000} } },/* 30: P2NR2 */
 162    {{{1, 0x1f00000, 0x1f10000, 0x150000} } },/* 31: EPG */
 163        {{{0} } },                                /* 32: PCI */
 164        {{{1, 0x2100000, 0x2102000, 0x120000},        /* 33: PCIE */
 165          {1, 0x2110000, 0x2120000, 0x130000},
 166          {1, 0x2120000, 0x2122000, 0x124000},
 167          {1, 0x2130000, 0x2132000, 0x126000},
 168          {1, 0x2140000, 0x2142000, 0x128000},
 169          {1, 0x2150000, 0x2152000, 0x12a000},
 170          {1, 0x2160000, 0x2170000, 0x110000},
 171          {1, 0x2170000, 0x2172000, 0x12e000},
 172          {0, 0x0000000, 0x0000000, 0x000000},
 173          {0, 0x0000000, 0x0000000, 0x000000},
 174          {0, 0x0000000, 0x0000000, 0x000000},
 175          {0, 0x0000000, 0x0000000, 0x000000},
 176          {0, 0x0000000, 0x0000000, 0x000000},
 177          {0, 0x0000000, 0x0000000, 0x000000},
 178          {0, 0x0000000, 0x0000000, 0x000000},
 179          {0, 0x0000000, 0x0000000, 0x000000} } },
 180        {{{1, 0x2200000, 0x2204000, 0x1b0000} } },/* 34: CAM */
 181        {{{0} } },                                /* 35: */
 182        {{{0} } },                                /* 36: */
 183        {{{0} } },                                /* 37: */
 184        {{{0} } },                                /* 38: */
 185        {{{0} } },                                /* 39: */
 186        {{{1, 0x2800000, 0x2804000, 0x1a4000} } },/* 40: TMR */
 187        {{{1, 0x2900000, 0x2901000, 0x16b000} } },/* 41: P2NR3 */
 188        {{{1, 0x2a00000, 0x2a00400, 0x1ac400} } },/* 42: RPMX1 */
 189        {{{1, 0x2b00000, 0x2b00400, 0x1ac800} } },/* 43: RPMX2 */
 190        {{{1, 0x2c00000, 0x2c00400, 0x1acc00} } },/* 44: RPMX3 */
 191        {{{1, 0x2d00000, 0x2d00400, 0x1ad000} } },/* 45: RPMX4 */
 192        {{{1, 0x2e00000, 0x2e00400, 0x1ad400} } },/* 46: RPMX5 */
 193        {{{1, 0x2f00000, 0x2f00400, 0x1ad800} } },/* 47: RPMX6 */
 194        {{{1, 0x3000000, 0x3000400, 0x1adc00} } },/* 48: RPMX7 */
 195        {{{0, 0x3100000, 0x3104000, 0x1a8000} } },/* 49: XDMA */
 196        {{{1, 0x3200000, 0x3204000, 0x1d4000} } },/* 50: I2Q */
 197        {{{1, 0x3300000, 0x3304000, 0x1a0000} } },/* 51: ROMUSB */
 198        {{{0} } },                                /* 52: */
 199        {{{1, 0x3500000, 0x3500400, 0x1ac000} } },/* 53: RPMX0 */
 200        {{{1, 0x3600000, 0x3600400, 0x1ae000} } },/* 54: RPMX8 */
 201        {{{1, 0x3700000, 0x3700400, 0x1ae400} } },/* 55: RPMX9 */
 202        {{{1, 0x3800000, 0x3804000, 0x1d0000} } },/* 56: OCM0 */
 203        {{{1, 0x3900000, 0x3904000, 0x1b4000} } },/* 57: CRYPTO */
 204        {{{1, 0x3a00000, 0x3a04000, 0x1d8000} } },/* 58: SMB */
 205        {{{0} } },                                /* 59: I2C0 */
 206        {{{0} } },                                /* 60: I2C1 */
 207        {{{1, 0x3d00000, 0x3d04000, 0x1d8000} } },/* 61: LPC */
 208        {{{1, 0x3e00000, 0x3e01000, 0x167000} } },/* 62: P2NC */
 209        {{{1, 0x3f00000, 0x3f01000, 0x168000} } }        /* 63: P2NR0 */
 210};
 211
 212/*
 213 * top 12 bits of crb internal address (hub, agent)
 214 */
 215static unsigned crb_hub_agt[64] =
 216{
 217        0,
 218        NETXEN_HW_CRB_HUB_AGT_ADR_PS,
 219        NETXEN_HW_CRB_HUB_AGT_ADR_MN,
 220        NETXEN_HW_CRB_HUB_AGT_ADR_MS,
 221        0,
 222        NETXEN_HW_CRB_HUB_AGT_ADR_SRE,
 223        NETXEN_HW_CRB_HUB_AGT_ADR_NIU,
 224        NETXEN_HW_CRB_HUB_AGT_ADR_QMN,
 225        NETXEN_HW_CRB_HUB_AGT_ADR_SQN0,
 226        NETXEN_HW_CRB_HUB_AGT_ADR_SQN1,
 227        NETXEN_HW_CRB_HUB_AGT_ADR_SQN2,
 228        NETXEN_HW_CRB_HUB_AGT_ADR_SQN3,
 229        NETXEN_HW_CRB_HUB_AGT_ADR_I2Q,
 230        NETXEN_HW_CRB_HUB_AGT_ADR_TIMR,
 231        NETXEN_HW_CRB_HUB_AGT_ADR_ROMUSB,
 232        NETXEN_HW_CRB_HUB_AGT_ADR_PGN4,
 233        NETXEN_HW_CRB_HUB_AGT_ADR_XDMA,
 234        NETXEN_HW_CRB_HUB_AGT_ADR_PGN0,
 235        NETXEN_HW_CRB_HUB_AGT_ADR_PGN1,
 236        NETXEN_HW_CRB_HUB_AGT_ADR_PGN2,
 237        NETXEN_HW_CRB_HUB_AGT_ADR_PGN3,
 238        NETXEN_HW_CRB_HUB_AGT_ADR_PGND,
 239        NETXEN_HW_CRB_HUB_AGT_ADR_PGNI,
 240        NETXEN_HW_CRB_HUB_AGT_ADR_PGS0,
 241        NETXEN_HW_CRB_HUB_AGT_ADR_PGS1,
 242        NETXEN_HW_CRB_HUB_AGT_ADR_PGS2,
 243        NETXEN_HW_CRB_HUB_AGT_ADR_PGS3,
 244        0,
 245        NETXEN_HW_CRB_HUB_AGT_ADR_PGSI,
 246        NETXEN_HW_CRB_HUB_AGT_ADR_SN,
 247        0,
 248        NETXEN_HW_CRB_HUB_AGT_ADR_EG,
 249        0,
 250        NETXEN_HW_CRB_HUB_AGT_ADR_PS,
 251        NETXEN_HW_CRB_HUB_AGT_ADR_CAM,
 252        0,
 253        0,
 254        0,
 255        0,
 256        0,
 257        NETXEN_HW_CRB_HUB_AGT_ADR_TIMR,
 258        0,
 259        NETXEN_HW_CRB_HUB_AGT_ADR_RPMX1,
 260        NETXEN_HW_CRB_HUB_AGT_ADR_RPMX2,
 261        NETXEN_HW_CRB_HUB_AGT_ADR_RPMX3,
 262        NETXEN_HW_CRB_HUB_AGT_ADR_RPMX4,
 263        NETXEN_HW_CRB_HUB_AGT_ADR_RPMX5,
 264        NETXEN_HW_CRB_HUB_AGT_ADR_RPMX6,
 265        NETXEN_HW_CRB_HUB_AGT_ADR_RPMX7,
 266        NETXEN_HW_CRB_HUB_AGT_ADR_XDMA,
 267        NETXEN_HW_CRB_HUB_AGT_ADR_I2Q,
 268        NETXEN_HW_CRB_HUB_AGT_ADR_ROMUSB,
 269        0,
 270        NETXEN_HW_CRB_HUB_AGT_ADR_RPMX0,
 271        NETXEN_HW_CRB_HUB_AGT_ADR_RPMX8,
 272        NETXEN_HW_CRB_HUB_AGT_ADR_RPMX9,
 273        NETXEN_HW_CRB_HUB_AGT_ADR_OCM0,
 274        0,
 275        NETXEN_HW_CRB_HUB_AGT_ADR_SMB,
 276        NETXEN_HW_CRB_HUB_AGT_ADR_I2C0,
 277        NETXEN_HW_CRB_HUB_AGT_ADR_I2C1,
 278        0,
 279        NETXEN_HW_CRB_HUB_AGT_ADR_PGNC,
 280        0,
 281};
 282
 283/*  PCI Windowing for DDR regions.  */
 284
 285#define ADDR_IN_RANGE(addr, low, high)        \
 286        (((addr) <= (high)) && ((addr) >= (low)))
 287
 288#define NETXEN_WINDOW_ONE         0x2000000 /*CRB Window: bit 25 of CRB address */
 289
 290#define NETXEN_NIC_ZERO_PAUSE_ADDR     0ULL
 291#define NETXEN_NIC_UNIT_PAUSE_ADDR     0x200ULL
 292#define NETXEN_NIC_EPG_PAUSE_ADDR1     0x2200010000c28001ULL
 293#define NETXEN_NIC_EPG_PAUSE_ADDR2     0x0100088866554433ULL
 294
 295#define NETXEN_NIC_WINDOW_MARGIN 0x100000
 296
 297int netxen_nic_set_mac(struct net_device *netdev, void *p)
 298{
 299        struct netxen_adapter *adapter = netdev_priv(netdev);
 300        struct sockaddr *addr = p;
 301
 302        if (netif_running(netdev))
 303                return -EBUSY;
 304
 305        if (!is_valid_ether_addr(addr->sa_data))
 306                return -EADDRNOTAVAIL;
 307
 308        memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
 309
 310        /* For P3, MAC addr is not set in NIU */
 311        if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
 312                if (adapter->macaddr_set)
 313                        adapter->macaddr_set(adapter, addr->sa_data);
 314
 315        return 0;
 316}
 317
 318#define NETXEN_UNICAST_ADDR(port, index) \
 319        (NETXEN_UNICAST_ADDR_BASE+(port*32)+(index*8))
 320#define NETXEN_MCAST_ADDR(port, index) \
 321        (NETXEN_MULTICAST_ADDR_BASE+(port*0x80)+(index*8))
 322#define MAC_HI(addr) \
 323        ((addr[2] << 16) | (addr[1] << 8) | (addr[0]))
 324#define MAC_LO(addr) \
 325        ((addr[5] << 16) | (addr[4] << 8) | (addr[3]))
 326
 327static int
 328netxen_nic_enable_mcast_filter(struct netxen_adapter *adapter)
 329{
 330        u32        val = 0;
 331        u16 port = adapter->physical_port;
 332        u8 *addr = adapter->netdev->dev_addr;
 333
 334        if (adapter->mc_enabled)
 335                return 0;
 336
 337        adapter->hw_read_wx(adapter, NETXEN_MAC_ADDR_CNTL_REG, &val, 4);
 338        val |= (1UL << (28+port));
 339        adapter->hw_write_wx(adapter, NETXEN_MAC_ADDR_CNTL_REG, &val, 4);
 340
 341        /* add broadcast addr to filter */
 342        val = 0xffffff;
 343        netxen_crb_writelit_adapter(adapter, NETXEN_UNICAST_ADDR(port, 0), val);
 344        netxen_crb_writelit_adapter(adapter,
 345                        NETXEN_UNICAST_ADDR(port, 0)+4, val);
 346
 347        /* add station addr to filter */
 348        val = MAC_HI(addr);
 349        netxen_crb_writelit_adapter(adapter, NETXEN_UNICAST_ADDR(port, 1), val);
 350        val = MAC_LO(addr);
 351        netxen_crb_writelit_adapter(adapter,
 352                        NETXEN_UNICAST_ADDR(port, 1)+4, val);
 353
 354        adapter->mc_enabled = 1;
 355        return 0;
 356}
 357
 358static int
 359netxen_nic_disable_mcast_filter(struct netxen_adapter *adapter)
 360{
 361        u32        val = 0;
 362        u16 port = adapter->physical_port;
 363        u8 *addr = adapter->netdev->dev_addr;
 364
 365        if (!adapter->mc_enabled)
 366                return 0;
 367
 368        adapter->hw_read_wx(adapter, NETXEN_MAC_ADDR_CNTL_REG, &val, 4);
 369        val &= ~(1UL << (28+port));
 370        adapter->hw_write_wx(adapter, NETXEN_MAC_ADDR_CNTL_REG, &val, 4);
 371
 372        val = MAC_HI(addr);
 373        netxen_crb_writelit_adapter(adapter, NETXEN_UNICAST_ADDR(port, 0), val);
 374        val = MAC_LO(addr);
 375        netxen_crb_writelit_adapter(adapter,
 376                        NETXEN_UNICAST_ADDR(port, 0)+4, val);
 377
 378        netxen_crb_writelit_adapter(adapter, NETXEN_UNICAST_ADDR(port, 1), 0);
 379        netxen_crb_writelit_adapter(adapter, NETXEN_UNICAST_ADDR(port, 1)+4, 0);
 380
 381        adapter->mc_enabled = 0;
 382        return 0;
 383}
 384
 385static int
 386netxen_nic_set_mcast_addr(struct netxen_adapter *adapter,
 387                int index, u8 *addr)
 388{
 389        u32 hi = 0, lo = 0;
 390        u16 port = adapter->physical_port;
 391
 392        lo = MAC_LO(addr);
 393        hi = MAC_HI(addr);
 394
 395        netxen_crb_writelit_adapter(adapter,
 396                        NETXEN_MCAST_ADDR(port, index), hi);
 397        netxen_crb_writelit_adapter(adapter,
 398                        NETXEN_MCAST_ADDR(port, index)+4, lo);
 399
 400        return 0;
 401}
 402
 403void netxen_p2_nic_set_multi(struct net_device *netdev)
 404{
 405        struct netxen_adapter *adapter = netdev_priv(netdev);
 406        struct dev_mc_list *mc_ptr;
 407        u8 null_addr[6];
 408        int index = 0;
 409
 410        memset(null_addr, 0, 6);
 411
 412        if (netdev->flags & IFF_PROMISC) {
 413
 414                adapter->set_promisc(adapter,
 415                                NETXEN_NIU_PROMISC_MODE);
 416
 417                /* Full promiscuous mode */
 418                netxen_nic_disable_mcast_filter(adapter);
 419
 420                return;
 421        }
 422
 423        if (netdev->mc_count == 0) {
 424                adapter->set_promisc(adapter,
 425                                NETXEN_NIU_NON_PROMISC_MODE);
 426                netxen_nic_disable_mcast_filter(adapter);
 427                return;
 428        }
 429
 430        adapter->set_promisc(adapter, NETXEN_NIU_ALLMULTI_MODE);
 431        if (netdev->flags & IFF_ALLMULTI ||
 432                        netdev->mc_count > adapter->max_mc_count) {
 433                netxen_nic_disable_mcast_filter(adapter);
 434                return;
 435        }
 436
 437        netxen_nic_enable_mcast_filter(adapter);
 438
 439        for (mc_ptr = netdev->mc_list; mc_ptr; mc_ptr = mc_ptr->next, index++)
 440                netxen_nic_set_mcast_addr(adapter, index, mc_ptr->dmi_addr);
 441
 442        if (index != netdev->mc_count)
 443                printk(KERN_WARNING "%s: %s multicast address count mismatch\n",
 444                        netxen_nic_driver_name, netdev->name);
 445
 446        /* Clear out remaining addresses */
 447        for (; index < adapter->max_mc_count; index++)
 448                netxen_nic_set_mcast_addr(adapter, index, null_addr);
 449}
 450
 451static int nx_p3_nic_add_mac(struct netxen_adapter *adapter,
 452                u8 *addr, nx_mac_list_t **add_list, nx_mac_list_t **del_list)
 453{
 454        nx_mac_list_t *cur, *prev;
 455
 456        /* if in del_list, move it to adapter->mac_list */
 457        for (cur = *del_list, prev = NULL; cur;) {
 458                if (memcmp(addr, cur->mac_addr, ETH_ALEN) == 0) {
 459                        if (prev == NULL)
 460                                *del_list = cur->next;
 461                        else
 462                                prev->next = cur->next;
 463                        cur->next = adapter->mac_list;
 464                        adapter->mac_list = cur;
 465                        return 0;
 466                }
 467                prev = cur;
 468                cur = cur->next;
 469        }
 470
 471        /* make sure to add each mac address only once */
 472        for (cur = adapter->mac_list; cur; cur = cur->next) {
 473                if (memcmp(addr, cur->mac_addr, ETH_ALEN) == 0)
 474                        return 0;
 475        }
 476        /* not in del_list, create new entry and add to add_list */
 477        cur = kmalloc(sizeof(*cur), in_atomic()? GFP_ATOMIC : GFP_KERNEL);
 478        if (cur == NULL) {
 479                printk(KERN_ERR "%s: cannot allocate memory. MAC filtering may"
 480                                "not work properly from now.\n", __func__);
 481                return -1;
 482        }
 483
 484        memcpy(cur->mac_addr, addr, ETH_ALEN);
 485        cur->next = *add_list;
 486        *add_list = cur;
 487        return 0;
 488}
 489
 490static int
 491netxen_send_cmd_descs(struct netxen_adapter *adapter,
 492                struct cmd_desc_type0 *cmd_desc_arr, int nr_elements)
 493{
 494        uint32_t i, producer;
 495        struct netxen_cmd_buffer *pbuf;
 496        struct cmd_desc_type0 *cmd_desc;
 497
 498        if (nr_elements > MAX_PENDING_DESC_BLOCK_SIZE || nr_elements == 0) {
 499                printk(KERN_WARNING "%s: Too many command descriptors in a "
 500                              "request\n", __func__);
 501                return -EINVAL;
 502        }
 503
 504        i = 0;
 505
 506        producer = adapter->cmd_producer;
 507        do {
 508                cmd_desc = &cmd_desc_arr[i];
 509
 510                pbuf = &adapter->cmd_buf_arr[producer];
 511                pbuf->mss = 0;
 512                pbuf->total_length = 0;
 513                pbuf->skb = NULL;
 514                pbuf->cmd = 0;
 515                pbuf->frag_count = 0;
 516                pbuf->port = 0;
 517
 518                /* adapter->ahw.cmd_desc_head[producer] = *cmd_desc; */
 519                memcpy(&adapter->ahw.cmd_desc_head[producer],
 520                        &cmd_desc_arr[i], sizeof(struct cmd_desc_type0));
 521
 522                producer = get_next_index(producer,
 523                                adapter->max_tx_desc_count);
 524                i++;
 525
 526        } while (i != nr_elements);
 527
 528        adapter->cmd_producer = producer;
 529
 530        /* write producer index to start the xmit */
 531
 532        netxen_nic_update_cmd_producer(adapter, adapter->cmd_producer);
 533
 534        return 0;
 535}
 536
 537static int nx_p3_sre_macaddr_change(struct net_device *dev,
 538                u8 *addr, unsigned op)
 539{
 540        struct netxen_adapter *adapter = (struct netxen_adapter *)dev->priv;
 541        nx_nic_req_t req;
 542        nx_mac_req_t mac_req;
 543        int rv;
 544
 545        memset(&req, 0, sizeof(nx_nic_req_t));
 546        req.qhdr |= (NX_NIC_REQUEST << 23);
 547        req.req_hdr |= NX_MAC_EVENT;
 548        req.req_hdr |= ((u64)adapter->portnum << 16);
 549        mac_req.op = op;
 550        memcpy(&mac_req.mac_addr, addr, 6);
 551        req.words[0] = cpu_to_le64(*(u64 *)&mac_req);
 552
 553        rv = netxen_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 554        if (rv != 0) {
 555                printk(KERN_ERR "ERROR. Could not send mac update\n");
 556                return rv;
 557        }
 558
 559        return 0;
 560}
 561
 562void netxen_p3_nic_set_multi(struct net_device *netdev)
 563{
 564        struct netxen_adapter *adapter = netdev_priv(netdev);
 565        nx_mac_list_t *cur, *next, *del_list, *add_list = NULL;
 566        struct dev_mc_list *mc_ptr;
 567        u8 bcast_addr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
 568        u32 mode = VPORT_MISS_MODE_DROP;
 569
 570        del_list = adapter->mac_list;
 571        adapter->mac_list = NULL;
 572
 573        nx_p3_nic_add_mac(adapter, netdev->dev_addr, &add_list, &del_list);
 574        nx_p3_nic_add_mac(adapter, bcast_addr, &add_list, &del_list);
 575
 576        if (netdev->flags & IFF_PROMISC) {
 577                mode = VPORT_MISS_MODE_ACCEPT_ALL;
 578                goto send_fw_cmd;
 579        }
 580
 581        if ((netdev->flags & IFF_ALLMULTI) ||
 582                        (netdev->mc_count > adapter->max_mc_count)) {
 583                mode = VPORT_MISS_MODE_ACCEPT_MULTI;
 584                goto send_fw_cmd;
 585        }
 586
 587        if (netdev->mc_count > 0) {
 588                for (mc_ptr = netdev->mc_list; mc_ptr;
 589                     mc_ptr = mc_ptr->next) {
 590                        nx_p3_nic_add_mac(adapter, mc_ptr->dmi_addr,
 591                                          &add_list, &del_list);
 592                }
 593        }
 594
 595send_fw_cmd:
 596        adapter->set_promisc(adapter, mode);
 597        for (cur = del_list; cur;) {
 598                nx_p3_sre_macaddr_change(netdev, cur->mac_addr, NETXEN_MAC_DEL);
 599                next = cur->next;
 600                kfree(cur);
 601                cur = next;
 602        }
 603        for (cur = add_list; cur;) {
 604                nx_p3_sre_macaddr_change(netdev, cur->mac_addr, NETXEN_MAC_ADD);
 605                next = cur->next;
 606                cur->next = adapter->mac_list;
 607                adapter->mac_list = cur;
 608                cur = next;
 609        }
 610}
 611
 612int netxen_p3_nic_set_promisc(struct netxen_adapter *adapter, u32 mode)
 613{
 614        nx_nic_req_t req;
 615
 616        memset(&req, 0, sizeof(nx_nic_req_t));
 617
 618        req.qhdr |= (NX_HOST_REQUEST << 23);
 619        req.req_hdr |= NX_NIC_H2C_OPCODE_PROXY_SET_VPORT_MISS_MODE;
 620        req.req_hdr |= ((u64)adapter->portnum << 16);
 621        req.words[0] = cpu_to_le64(mode);
 622
 623        return netxen_send_cmd_descs(adapter,
 624                                (struct cmd_desc_type0 *)&req, 1);
 625}
 626
 627#define        NETXEN_CONFIG_INTR_COALESCE        3
 628
 629/*
 630 * Send the interrupt coalescing parameter set by ethtool to the card.
 631 */
 632int netxen_config_intr_coalesce(struct netxen_adapter *adapter)
 633{
 634        nx_nic_req_t req;
 635        int rv;
 636
 637        memset(&req, 0, sizeof(nx_nic_req_t));
 638
 639        req.qhdr |= (NX_NIC_REQUEST << 23);
 640        req.req_hdr |= NETXEN_CONFIG_INTR_COALESCE;
 641        req.req_hdr |= ((u64)adapter->portnum << 16);
 642
 643        memcpy(&req.words[0], &adapter->coal, sizeof(adapter->coal));
 644
 645        rv = netxen_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 646        if (rv != 0) {
 647                printk(KERN_ERR "ERROR. Could not send "
 648                        "interrupt coalescing parameters\n");
 649        }
 650
 651        return rv;
 652}
 653
 654/*
 655 * netxen_nic_change_mtu - Change the Maximum Transfer Unit
 656 * @returns 0 on success, negative on failure
 657 */
 658
 659#define MTU_FUDGE_FACTOR        100
 660
 661int netxen_nic_change_mtu(struct net_device *netdev, int mtu)
 662{
 663        struct netxen_adapter *adapter = netdev_priv(netdev);
 664        int max_mtu;
 665        int rc = 0;
 666
 667        if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
 668                max_mtu = P3_MAX_MTU;
 669        else
 670                max_mtu = P2_MAX_MTU;
 671
 672        if (mtu > max_mtu) {
 673                printk(KERN_ERR "%s: mtu > %d bytes unsupported\n",
 674                                netdev->name, max_mtu);
 675                return -EINVAL;
 676        }
 677
 678        if (adapter->set_mtu)
 679                rc = adapter->set_mtu(adapter, mtu);
 680
 681        if (!rc)
 682                netdev->mtu = mtu;
 683
 684        return rc;
 685}
 686
 687int netxen_is_flash_supported(struct netxen_adapter *adapter)
 688{
 689        const int locs[] = { 0, 0x4, 0x100, 0x4000, 0x4128 };
 690        int addr, val01, val02, i, j;
 691
 692        /* if the flash size less than 4Mb, make huge war cry and die */
 693        for (j = 1; j < 4; j++) {
 694                addr = j * NETXEN_NIC_WINDOW_MARGIN;
 695                for (i = 0; i < ARRAY_SIZE(locs); i++) {
 696                        if (netxen_rom_fast_read(adapter, locs[i], &val01) == 0
 697                            && netxen_rom_fast_read(adapter, (addr + locs[i]),
 698                                                    &val02) == 0) {
 699                                if (val01 == val02)
 700                                        return -1;
 701                        } else
 702                                return -1;
 703                }
 704        }
 705
 706        return 0;
 707}
 708
 709static int netxen_get_flash_block(struct netxen_adapter *adapter, int base,
 710                                  int size, __le32 * buf)
 711{
 712        int i, addr;
 713        __le32 *ptr32;
 714        u32 v;
 715
 716        addr = base;
 717        ptr32 = buf;
 718        for (i = 0; i < size / sizeof(u32); i++) {
 719                if (netxen_rom_fast_read(adapter, addr, &v) == -1)
 720                        return -1;
 721                *ptr32 = cpu_to_le32(v);
 722                ptr32++;
 723                addr += sizeof(u32);
 724        }
 725        if ((char *)buf + size > (char *)ptr32) {
 726                __le32 local;
 727                if (netxen_rom_fast_read(adapter, addr, &v) == -1)
 728                        return -1;
 729                local = cpu_to_le32(v);
 730                memcpy(ptr32, &local, (char *)buf + size - (char *)ptr32);
 731        }
 732
 733        return 0;
 734}
 735
 736int netxen_get_flash_mac_addr(struct netxen_adapter *adapter, __le64 *mac)
 737{
 738        __le32 *pmac = (__le32 *) mac;
 739        u32 offset;
 740
 741        offset = NETXEN_USER_START +
 742                offsetof(struct netxen_new_user_info, mac_addr) +
 743                adapter->portnum * sizeof(u64);
 744
 745        if (netxen_get_flash_block(adapter, offset, sizeof(u64), pmac) == -1)
 746                return -1;
 747
 748        if (*mac == cpu_to_le64(~0ULL)) {
 749
 750                offset = NETXEN_USER_START_OLD +
 751                        offsetof(struct netxen_user_old_info, mac_addr) +
 752                        adapter->portnum * sizeof(u64);
 753
 754                if (netxen_get_flash_block(adapter,
 755                                        offset, sizeof(u64), pmac) == -1)
 756                        return -1;
 757
 758                if (*mac == cpu_to_le64(~0ULL))
 759                        return -1;
 760        }
 761        return 0;
 762}
 763
 764int netxen_p3_get_mac_addr(struct netxen_adapter *adapter, __le64 *mac)
 765{
 766        uint32_t crbaddr, mac_hi, mac_lo;
 767        int pci_func = adapter->ahw.pci_func;
 768
 769        crbaddr = CRB_MAC_BLOCK_START +
 770                (4 * ((pci_func/2) * 3)) + (4 * (pci_func & 1));
 771
 772        adapter->hw_read_wx(adapter, crbaddr, &mac_lo, 4);
 773        adapter->hw_read_wx(adapter, crbaddr+4, &mac_hi, 4);
 774
 775        mac_hi = cpu_to_le32(mac_hi);
 776        mac_lo = cpu_to_le32(mac_lo);
 777
 778        if (pci_func & 1)
 779                *mac = ((mac_lo >> 16) | ((u64)mac_hi << 16));
 780        else
 781                *mac = ((mac_lo) | ((u64)mac_hi << 32));
 782
 783        return 0;
 784}
 785
 786#define CRB_WIN_LOCK_TIMEOUT 100000000
 787
 788static int crb_win_lock(struct netxen_adapter *adapter)
 789{
 790        int done = 0, timeout = 0;
 791
 792        while (!done) {
 793                /* acquire semaphore3 from PCI HW block */
 794                adapter->hw_read_wx(adapter,
 795                                NETXEN_PCIE_REG(PCIE_SEM7_LOCK), &done, 4);
 796                if (done == 1)
 797                        break;
 798                if (timeout >= CRB_WIN_LOCK_TIMEOUT)
 799                        return -1;
 800                timeout++;
 801                udelay(1);
 802        }
 803        netxen_crb_writelit_adapter(adapter,
 804                        NETXEN_CRB_WIN_LOCK_ID, adapter->portnum);
 805        return 0;
 806}
 807
 808static void crb_win_unlock(struct netxen_adapter *adapter)
 809{
 810        int val;
 811
 812        adapter->hw_read_wx(adapter,
 813                        NETXEN_PCIE_REG(PCIE_SEM7_UNLOCK), &val, 4);
 814}
 815
 816/*
 817 * Changes the CRB window to the specified window.
 818 */
 819void
 820netxen_nic_pci_change_crbwindow_128M(struct netxen_adapter *adapter, u32 wndw)
 821{
 822        void __iomem *offset;
 823        u32 tmp;
 824        int count = 0;
 825        uint8_t func = adapter->ahw.pci_func;
 826
 827        if (adapter->curr_window == wndw)
 828                return;
 829        /*
 830         * Move the CRB window.
 831         * We need to write to the "direct access" region of PCI
 832         * to avoid a race condition where the window register has
 833         * not been successfully written across CRB before the target
 834         * register address is received by PCI. The direct region bypasses
 835         * the CRB bus.
 836         */
 837        offset = PCI_OFFSET_SECOND_RANGE(adapter,
 838                        NETXEN_PCIX_PH_REG(PCIE_CRB_WINDOW_REG(func)));
 839
 840        if (wndw & 0x1)
 841                wndw = NETXEN_WINDOW_ONE;
 842
 843        writel(wndw, offset);
 844
 845        /* MUST make sure window is set before we forge on... */
 846        while ((tmp = readl(offset)) != wndw) {
 847                printk(KERN_WARNING "%s: %s WARNING: CRB window value not "
 848                       "registered properly: 0x%08x.\n",
 849                       netxen_nic_driver_name, __func__, tmp);
 850                mdelay(1);
 851                if (count >= 10)
 852                        break;
 853                count++;
 854        }
 855
 856        if (wndw == NETXEN_WINDOW_ONE)
 857                adapter->curr_window = 1;
 858        else
 859                adapter->curr_window = 0;
 860}
 861
 862/*
 863 * Return -1 if off is not valid,
 864 *         1 if window access is needed. 'off' is set to offset from
 865 *           CRB space in 128M pci map
 866 *         0 if no window access is needed. 'off' is set to 2M addr
 867 * In: 'off' is offset from base in 128M pci map
 868 */
 869static int
 870netxen_nic_pci_get_crb_addr_2M(struct netxen_adapter *adapter,
 871                ulong *off, int len)
 872{
 873        unsigned long end = *off + len;
 874        crb_128M_2M_sub_block_map_t *m;
 875
 876
 877        if (*off >= NETXEN_CRB_MAX)
 878                return -1;
 879
 880        if (*off >= NETXEN_PCI_CAMQM && (end <= NETXEN_PCI_CAMQM_2M_END)) {
 881                *off = (*off - NETXEN_PCI_CAMQM) + NETXEN_PCI_CAMQM_2M_BASE +
 882                        (ulong)adapter->ahw.pci_base0;
 883                return 0;
 884        }
 885
 886        if (*off < NETXEN_PCI_CRBSPACE)
 887                return -1;
 888
 889        *off -= NETXEN_PCI_CRBSPACE;
 890        end = *off + len;
 891
 892        /*
 893         * Try direct map
 894         */
 895        m = &crb_128M_2M_map[CRB_BLK(*off)].sub_block[CRB_SUBBLK(*off)];
 896
 897        if (m->valid && (m->start_128M <= *off) && (m->end_128M >= end)) {
 898                *off = *off + m->start_2M - m->start_128M +
 899                        (ulong)adapter->ahw.pci_base0;
 900                return 0;
 901        }
 902
 903        /*
 904         * Not in direct map, use crb window
 905         */
 906        return 1;
 907}
 908
 909/*
 910 * In: 'off' is offset from CRB space in 128M pci map
 911 * Out: 'off' is 2M pci map addr
 912 * side effect: lock crb window
 913 */
 914static void
 915netxen_nic_pci_set_crbwindow_2M(struct netxen_adapter *adapter, ulong *off)
 916{
 917        u32 win_read;
 918
 919        adapter->crb_win = CRB_HI(*off);
 920        writel(adapter->crb_win, (void *)(CRB_WINDOW_2M +
 921                adapter->ahw.pci_base0));
 922        /*
 923         * Read back value to make sure write has gone through before trying
 924         * to use it.
 925         */
 926        win_read = readl((void *)(CRB_WINDOW_2M + adapter->ahw.pci_base0));
 927        if (win_read != adapter->crb_win) {
 928                printk(KERN_ERR "%s: Written crbwin (0x%x) != "
 929                                "Read crbwin (0x%x), off=0x%lx\n",
 930                                __func__, adapter->crb_win, win_read, *off);
 931        }
 932        *off = (*off & MASK(16)) + CRB_INDIRECT_2M +
 933                (ulong)adapter->ahw.pci_base0;
 934}
 935
 936int netxen_load_firmware(struct netxen_adapter *adapter)
 937{
 938        int i;
 939        u32 data, size = 0;
 940        u32 flashaddr = NETXEN_BOOTLD_START, memaddr = NETXEN_BOOTLD_START;
 941
 942        size = (NETXEN_IMAGE_START - NETXEN_BOOTLD_START)/4;
 943
 944        if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
 945                adapter->pci_write_normalize(adapter,
 946                                NETXEN_ROMUSB_GLB_CAS_RST, 1);
 947
 948        for (i = 0; i < size; i++) {
 949                if (netxen_rom_fast_read(adapter, flashaddr, (int *)&data) != 0)
 950                        return -EIO;
 951
 952                adapter->pci_mem_write(adapter, memaddr, &data, 4);
 953                flashaddr += 4;
 954                memaddr += 4;
 955                cond_resched();
 956        }
 957        msleep(1);
 958
 959        if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
 960                adapter->pci_write_normalize(adapter,
 961                                NETXEN_ROMUSB_GLB_SW_RESET, 0x80001d);
 962        else {
 963                adapter->pci_write_normalize(adapter,
 964                                NETXEN_ROMUSB_GLB_CHIP_CLK_CTRL, 0x3fff);
 965                adapter->pci_write_normalize(adapter,
 966                                NETXEN_ROMUSB_GLB_CAS_RST, 0);
 967        }
 968
 969        return 0;
 970}
 971
 972int
 973netxen_nic_hw_write_wx_128M(struct netxen_adapter *adapter,
 974                ulong off, void *data, int len)
 975{
 976        void __iomem *addr;
 977
 978        if (ADDR_IN_WINDOW1(off)) {
 979                addr = NETXEN_CRB_NORMALIZE(adapter, off);
 980        } else {                /* Window 0 */
 981                addr = pci_base_offset(adapter, off);
 982                netxen_nic_pci_change_crbwindow_128M(adapter, 0);
 983        }
 984
 985        DPRINTK(INFO, "writing to base %lx offset %llx addr %p"
 986                " data %llx len %d\n",
 987                pci_base(adapter, off), off, addr,
 988                *(unsigned long long *)data, len);
 989        if (!addr) {
 990                netxen_nic_pci_change_crbwindow_128M(adapter, 1);
 991                return 1;
 992        }
 993
 994        switch (len) {
 995        case 1:
 996                writeb(*(u8 *) data, addr);
 997                break;
 998        case 2:
 999                writew(*(u16 *) data, addr);
1000                break;
1001        case 4:
1002                writel(*(u32 *) data, addr);
1003                break;
1004        case 8:
1005                writeq(*(u64 *) data, addr);
1006                break;
1007        default:
1008                DPRINTK(INFO,
1009                        "writing data %lx to offset %llx, num words=%d\n",
1010                        *(unsigned long *)data, off, (len >> 3));
1011
1012                netxen_nic_hw_block_write64((u64 __iomem *) data, addr,
1013                                            (len >> 3));
1014                break;
1015        }
1016        if (!ADDR_IN_WINDOW1(off))
1017                netxen_nic_pci_change_crbwindow_128M(adapter, 1);
1018
1019        return 0;
1020}
1021
1022int
1023netxen_nic_hw_read_wx_128M(struct netxen_adapter *adapter,
1024                ulong off, void *data, int len)
1025{
1026        void __iomem *addr;
1027
1028        if (ADDR_IN_WINDOW1(off)) {        /* Window 1 */
1029                addr = NETXEN_CRB_NORMALIZE(adapter, off);
1030        } else {                /* Window 0 */
1031                addr = pci_base_offset(adapter, off);
1032                netxen_nic_pci_change_crbwindow_128M(adapter, 0);
1033        }
1034
1035        DPRINTK(INFO, "reading from base %lx offset %llx addr %p\n",
1036                pci_base(adapter, off), off, addr);
1037        if (!addr) {
1038                netxen_nic_pci_change_crbwindow_128M(adapter, 1);
1039                return 1;
1040        }
1041        switch (len) {
1042        case 1:
1043                *(u8 *) data = readb(addr);
1044                break;
1045        case 2:
1046                *(u16 *) data = readw(addr);
1047                break;
1048        case 4:
1049                *(u32 *) data = readl(addr);
1050                break;
1051        case 8:
1052                *(u64 *) data = readq(addr);
1053                break;
1054        default:
1055                netxen_nic_hw_block_read64((u64 __iomem *) data, addr,
1056                                           (len >> 3));
1057                break;
1058        }
1059        DPRINTK(INFO, "read %lx\n", *(unsigned long *)data);
1060
1061        if (!ADDR_IN_WINDOW1(off))
1062                netxen_nic_pci_change_crbwindow_128M(adapter, 1);
1063
1064        return 0;
1065}
1066
1067int
1068netxen_nic_hw_write_wx_2M(struct netxen_adapter *adapter,
1069                ulong off, void *data, int len)
1070{
1071        unsigned long flags = 0;
1072        int rv;
1073
1074        rv = netxen_nic_pci_get_crb_addr_2M(adapter, &off, len);
1075
1076        if (rv == -1) {
1077                printk(KERN_ERR "%s: invalid offset: 0x%016lx\n",
1078                                __func__, off);
1079                dump_stack();
1080                return -1;
1081        }
1082
1083        if (rv == 1) {
1084                write_lock_irqsave(&adapter->adapter_lock, flags);
1085                crb_win_lock(adapter);
1086                netxen_nic_pci_set_crbwindow_2M(adapter, &off);
1087        }
1088
1089        DPRINTK(1, INFO, "write data %lx to offset %llx, len=%d\n",
1090                        *(unsigned long *)data, off, len);
1091
1092        switch (len) {
1093        case 1:
1094                writeb(*(uint8_t *)data, (void *)off);
1095                break;
1096        case 2:
1097                writew(*(uint16_t *)data, (void *)off);
1098                break;
1099        case 4:
1100                writel(*(uint32_t *)data, (void *)off);
1101                break;
1102        case 8:
1103                writeq(*(uint64_t *)data, (void *)off);
1104                break;
1105        default:
1106                DPRINTK(1, INFO,
1107                        "writing data %lx to offset %llx, num words=%d\n",
1108                        *(unsigned long *)data, off, (len>>3));
1109                break;
1110        }
1111        if (rv == 1) {
1112                crb_win_unlock(adapter);
1113                write_unlock_irqrestore(&adapter->adapter_lock, flags);
1114        }
1115
1116        return 0;
1117}
1118
1119int
1120netxen_nic_hw_read_wx_2M(struct netxen_adapter *adapter,
1121                ulong off, void *data, int len)
1122{
1123        unsigned long flags = 0;
1124        int rv;
1125
1126        rv = netxen_nic_pci_get_crb_addr_2M(adapter, &off, len);
1127
1128        if (rv == -1) {
1129                printk(KERN_ERR "%s: invalid offset: 0x%016lx\n",
1130                                __func__, off);
1131                dump_stack();
1132                return -1;
1133        }
1134
1135        if (rv == 1) {
1136                write_lock_irqsave(&adapter->adapter_lock, flags);
1137                crb_win_lock(adapter);
1138                netxen_nic_pci_set_crbwindow_2M(adapter, &off);
1139        }
1140
1141        DPRINTK(1, INFO, "read from offset %lx, len=%d\n", off, len);
1142
1143        switch (len) {
1144        case 1:
1145                *(uint8_t *)data = readb((void *)off);
1146                break;
1147        case 2:
1148                *(uint16_t *)data = readw((void *)off);
1149                break;
1150        case 4:
1151                *(uint32_t *)data = readl((void *)off);
1152                break;
1153        case 8:
1154                *(uint64_t *)data = readq((void *)off);
1155                break;
1156        default:
1157                break;
1158        }
1159
1160        DPRINTK(1, INFO, "read %lx\n", *(unsigned long *)data);
1161
1162        if (rv == 1) {
1163                crb_win_unlock(adapter);
1164                write_unlock_irqrestore(&adapter->adapter_lock, flags);
1165        }
1166
1167        return 0;
1168}
1169
1170void netxen_nic_reg_write(struct netxen_adapter *adapter, u64 off, u32 val)
1171{
1172        adapter->hw_write_wx(adapter, off, &val, 4);
1173}
1174
1175int netxen_nic_reg_read(struct netxen_adapter *adapter, u64 off)
1176{
1177        int val;
1178        adapter->hw_read_wx(adapter, off, &val, 4);
1179        return val;
1180}
1181
1182/* Change the window to 0, write and change back to window 1. */
1183void netxen_nic_write_w0(struct netxen_adapter *adapter, u32 index, u32 value)
1184{
1185        adapter->hw_write_wx(adapter, index, &value, 4);
1186}
1187
1188/* Change the window to 0, read and change back to window 1. */
1189void netxen_nic_read_w0(struct netxen_adapter *adapter, u32 index, u32 *value)
1190{
1191        adapter->hw_read_wx(adapter, index, value, 4);
1192}
1193
1194void netxen_nic_write_w1(struct netxen_adapter *adapter, u32 index, u32 value)
1195{
1196        adapter->hw_write_wx(adapter, index, &value, 4);
1197}
1198
1199void netxen_nic_read_w1(struct netxen_adapter *adapter, u32 index, u32 *value)
1200{
1201        adapter->hw_read_wx(adapter, index, value, 4);
1202}
1203
1204/*
1205 * check memory access boundary.
1206 * used by test agent. support ddr access only for now
1207 */
1208static unsigned long
1209netxen_nic_pci_mem_bound_check(struct netxen_adapter *adapter,
1210                unsigned long long addr, int size)
1211{
1212        if (!ADDR_IN_RANGE(addr,
1213                        NETXEN_ADDR_DDR_NET, NETXEN_ADDR_DDR_NET_MAX) ||
1214                !ADDR_IN_RANGE(addr+size-1,
1215                        NETXEN_ADDR_DDR_NET, NETXEN_ADDR_DDR_NET_MAX) ||
1216                ((size != 1) && (size != 2) && (size != 4) && (size != 8))) {
1217                return 0;
1218        }
1219
1220        return 1;
1221}
1222
1223static int netxen_pci_set_window_warning_count;
1224
1225unsigned long
1226netxen_nic_pci_set_window_128M(struct netxen_adapter *adapter,
1227                unsigned long long addr)
1228{
1229        void __iomem *offset;
1230        int window;
1231        unsigned long long        qdr_max;
1232        uint8_t func = adapter->ahw.pci_func;
1233
1234        if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1235                qdr_max = NETXEN_ADDR_QDR_NET_MAX_P2;
1236        } else {
1237                qdr_max = NETXEN_ADDR_QDR_NET_MAX_P3;
1238        }
1239
1240        if (ADDR_IN_RANGE(addr, NETXEN_ADDR_DDR_NET, NETXEN_ADDR_DDR_NET_MAX)) {
1241                /* DDR network side */
1242                addr -= NETXEN_ADDR_DDR_NET;
1243                window = (addr >> 25) & 0x3ff;
1244                if (adapter->ahw.ddr_mn_window != window) {
1245                        adapter->ahw.ddr_mn_window = window;
1246                        offset = PCI_OFFSET_SECOND_RANGE(adapter,
1247                                NETXEN_PCIX_PH_REG(PCIE_MN_WINDOW_REG(func)));
1248                        writel(window, offset);
1249                        /* MUST make sure window is set before we forge on... */
1250                        readl(offset);
1251                }
1252                addr -= (window * NETXEN_WINDOW_ONE);
1253                addr += NETXEN_PCI_DDR_NET;
1254        } else if (ADDR_IN_RANGE(addr, NETXEN_ADDR_OCM0, NETXEN_ADDR_OCM0_MAX)) {
1255                addr -= NETXEN_ADDR_OCM0;
1256                addr += NETXEN_PCI_OCM0;
1257        } else if (ADDR_IN_RANGE(addr, NETXEN_ADDR_OCM1, NETXEN_ADDR_OCM1_MAX)) {
1258                addr -= NETXEN_ADDR_OCM1;
1259                addr += NETXEN_PCI_OCM1;
1260        } else if (ADDR_IN_RANGE(addr, NETXEN_ADDR_QDR_NET, qdr_max)) {
1261                /* QDR network side */
1262                addr -= NETXEN_ADDR_QDR_NET;
1263                window = (addr >> 22) & 0x3f;
1264                if (adapter->ahw.qdr_sn_window != window) {
1265                        adapter->ahw.qdr_sn_window = window;
1266                        offset = PCI_OFFSET_SECOND_RANGE(adapter,
1267                                NETXEN_PCIX_PH_REG(PCIE_SN_WINDOW_REG(func)));
1268                        writel((window << 22), offset);
1269                        /* MUST make sure window is set before we forge on... */
1270                        readl(offset);
1271                }
1272                addr -= (window * 0x400000);
1273                addr += NETXEN_PCI_QDR_NET;
1274        } else {
1275                /*
1276                 * peg gdb frequently accesses memory that doesn't exist,
1277                 * this limits the chit chat so debugging isn't slowed down.
1278                 */
1279                if ((netxen_pci_set_window_warning_count++ < 8)
1280                    || (netxen_pci_set_window_warning_count % 64 == 0))
1281                        printk("%s: Warning:netxen_nic_pci_set_window()"
1282                               " Unknown address range!\n",
1283                               netxen_nic_driver_name);
1284                addr = -1UL;
1285        }
1286        return addr;
1287}
1288
1289/*
1290 * Note : only 32-bit writes!
1291 */
1292int netxen_nic_pci_write_immediate_128M(struct netxen_adapter *adapter,
1293                u64 off, u32 data)
1294{
1295        writel(data, (void __iomem *)(PCI_OFFSET_SECOND_RANGE(adapter, off)));
1296        return 0;
1297}
1298
1299u32 netxen_nic_pci_read_immediate_128M(struct netxen_adapter *adapter, u64 off)
1300{
1301        return readl((void __iomem *)(pci_base_offset(adapter, off)));
1302}
1303
1304void netxen_nic_pci_write_normalize_128M(struct netxen_adapter *adapter,
1305                u64 off, u32 data)
1306{
1307        writel(data, NETXEN_CRB_NORMALIZE(adapter, off));
1308}
1309
1310u32 netxen_nic_pci_read_normalize_128M(struct netxen_adapter *adapter, u64 off)
1311{
1312        return readl(NETXEN_CRB_NORMALIZE(adapter, off));
1313}
1314
1315unsigned long
1316netxen_nic_pci_set_window_2M(struct netxen_adapter *adapter,
1317                unsigned long long addr)
1318{
1319        int window;
1320        u32 win_read;
1321
1322        if (ADDR_IN_RANGE(addr, NETXEN_ADDR_DDR_NET, NETXEN_ADDR_DDR_NET_MAX)) {
1323                /* DDR network side */
1324                window = MN_WIN(addr);
1325                adapter->ahw.ddr_mn_window = window;
1326                adapter->hw_write_wx(adapter,
1327                                adapter->ahw.mn_win_crb | NETXEN_PCI_CRBSPACE,
1328                                &window, 4);
1329                adapter->hw_read_wx(adapter,
1330                                adapter->ahw.mn_win_crb | NETXEN_PCI_CRBSPACE,
1331                                &win_read, 4);
1332                if ((win_read << 17) != window) {
1333                        printk(KERN_INFO "Written MNwin (0x%x) != "
1334                                "Read MNwin (0x%x)\n", window, win_read);
1335                }
1336                addr = GET_MEM_OFFS_2M(addr) + NETXEN_PCI_DDR_NET;
1337        } else if (ADDR_IN_RANGE(addr,
1338                                NETXEN_ADDR_OCM0, NETXEN_ADDR_OCM0_MAX)) {
1339                if ((addr & 0x00ff800) == 0xff800) {
1340                        printk("%s: QM access not handled.\n", __func__);
1341                        addr = -1UL;
1342                }
1343
1344                window = OCM_WIN(addr);
1345                adapter->ahw.ddr_mn_window = window;
1346                adapter->hw_write_wx(adapter,
1347                                adapter->ahw.mn_win_crb | NETXEN_PCI_CRBSPACE,
1348                                &window, 4);
1349                adapter->hw_read_wx(adapter,
1350                                adapter->ahw.mn_win_crb | NETXEN_PCI_CRBSPACE,
1351                                &win_read, 4);
1352                if ((win_read >> 7) != window) {
1353                        printk(KERN_INFO "%s: Written OCMwin (0x%x) != "
1354                                        "Read OCMwin (0x%x)\n",
1355                                        __func__, window, win_read);
1356                }
1357                addr = GET_MEM_OFFS_2M(addr) + NETXEN_PCI_OCM0_2M;
1358
1359        } else if (ADDR_IN_RANGE(addr,
1360                        NETXEN_ADDR_QDR_NET, NETXEN_ADDR_QDR_NET_MAX_P3)) {
1361                /* QDR network side */
1362                window = MS_WIN(addr);
1363                adapter->ahw.qdr_sn_window = window;
1364                adapter->hw_write_wx(adapter,
1365                                adapter->ahw.ms_win_crb | NETXEN_PCI_CRBSPACE,
1366                                &window, 4);
1367                adapter->hw_read_wx(adapter,
1368                                adapter->ahw.ms_win_crb | NETXEN_PCI_CRBSPACE,
1369                                &win_read, 4);
1370                if (win_read != window) {
1371                        printk(KERN_INFO "%s: Written MSwin (0x%x) != "
1372                                        "Read MSwin (0x%x)\n",
1373                                        __func__, window, win_read);
1374                }
1375                addr = GET_MEM_OFFS_2M(addr) + NETXEN_PCI_QDR_NET;
1376
1377        } else {
1378                /*
1379                 * peg gdb frequently accesses memory that doesn't exist,
1380                 * this limits the chit chat so debugging isn't slowed down.
1381                 */
1382                if ((netxen_pci_set_window_warning_count++ < 8)
1383                        || (netxen_pci_set_window_warning_count%64 == 0)) {
1384                        printk("%s: Warning:%s Unknown address range!\n",
1385                                        __func__, netxen_nic_driver_name);
1386}
1387                addr = -1UL;
1388        }
1389        return addr;
1390}
1391
1392static int netxen_nic_pci_is_same_window(struct netxen_adapter *adapter,
1393                                      unsigned long long addr)
1394{
1395        int window;
1396        unsigned long long qdr_max;
1397
1398        if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
1399                qdr_max = NETXEN_ADDR_QDR_NET_MAX_P2;
1400        else
1401                qdr_max = NETXEN_ADDR_QDR_NET_MAX_P3;
1402
1403        if (ADDR_IN_RANGE(addr,
1404                        NETXEN_ADDR_DDR_NET, NETXEN_ADDR_DDR_NET_MAX)) {
1405                /* DDR network side */
1406                BUG();        /* MN access can not come here */
1407        } else if (ADDR_IN_RANGE(addr,
1408                        NETXEN_ADDR_OCM0, NETXEN_ADDR_OCM0_MAX)) {
1409                return 1;
1410        } else if (ADDR_IN_RANGE(addr,
1411                                NETXEN_ADDR_OCM1, NETXEN_ADDR_OCM1_MAX)) {
1412                return 1;
1413        } else if (ADDR_IN_RANGE(addr, NETXEN_ADDR_QDR_NET, qdr_max)) {
1414                /* QDR network side */
1415                window = ((addr - NETXEN_ADDR_QDR_NET) >> 22) & 0x3f;
1416                if (adapter->ahw.qdr_sn_window == window)
1417                        return 1;
1418        }
1419
1420        return 0;
1421}
1422
1423static int netxen_nic_pci_mem_read_direct(struct netxen_adapter *adapter,
1424                        u64 off, void *data, int size)
1425{
1426        unsigned long flags;
1427        void *addr;
1428        int ret = 0;
1429        u64 start;
1430        uint8_t *mem_ptr = NULL;
1431        unsigned long mem_base;
1432        unsigned long mem_page;
1433
1434        write_lock_irqsave(&adapter->adapter_lock, flags);
1435
1436        /*
1437         * If attempting to access unknown address or straddle hw windows,
1438         * do not access.
1439         */
1440        start = adapter->pci_set_window(adapter, off);
1441        if ((start == -1UL) ||
1442                (netxen_nic_pci_is_same_window(adapter, off+size-1) == 0)) {
1443                write_unlock_irqrestore(&adapter->adapter_lock, flags);
1444                printk(KERN_ERR "%s out of bound pci memory access. "
1445                        "offset is 0x%llx\n", netxen_nic_driver_name,
1446                        (unsigned long long)off);
1447                return -1;
1448        }
1449
1450        addr = (void *)(pci_base_offset(adapter, start));
1451        if (!addr) {
1452                write_unlock_irqrestore(&adapter->adapter_lock, flags);
1453                mem_base = pci_resource_start(adapter->pdev, 0);
1454                mem_page = start & PAGE_MASK;
1455                /* Map two pages whenever user tries to access addresses in two
1456                consecutive pages.
1457                */
1458                if (mem_page != ((start + size - 1) & PAGE_MASK))
1459                        mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE * 2);
1460                else
1461                        mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE);
1462                if (mem_ptr == 0UL) {
1463                        *(uint8_t  *)data = 0;
1464                        return -1;
1465                }
1466                addr = mem_ptr;
1467                addr += start & (PAGE_SIZE - 1);
1468                write_lock_irqsave(&adapter->adapter_lock, flags);
1469        }
1470
1471        switch (size) {
1472        case 1:
1473                *(uint8_t  *)data = readb(addr);
1474                break;
1475        case 2:
1476                *(uint16_t *)data = readw(addr);
1477                break;
1478        case 4:
1479                *(uint32_t *)data = readl(addr);
1480                break;
1481        case 8:
1482                *(uint64_t *)data = readq(addr);
1483                break;
1484        default:
1485                ret = -1;
1486                break;
1487        }
1488        write_unlock_irqrestore(&adapter->adapter_lock, flags);
1489        DPRINTK(1, INFO, "read %llx\n", *(unsigned long long *)data);
1490
1491        if (mem_ptr)
1492                iounmap(mem_ptr);
1493        return ret;
1494}
1495
1496static int
1497netxen_nic_pci_mem_write_direct(struct netxen_adapter *adapter, u64 off,
1498                void *data, int size)
1499{
1500        unsigned long flags;
1501        void *addr;
1502        int ret = 0;
1503        u64 start;
1504        uint8_t *mem_ptr = NULL;
1505        unsigned long mem_base;
1506        unsigned long mem_page;
1507
1508        write_lock_irqsave(&adapter->adapter_lock, flags);
1509
1510        /*
1511         * If attempting to access unknown address or straddle hw windows,
1512         * do not access.
1513         */
1514        start = adapter->pci_set_window(adapter, off);
1515        if ((start == -1UL) ||
1516                (netxen_nic_pci_is_same_window(adapter, off+size-1) == 0)) {
1517                write_unlock_irqrestore(&adapter->adapter_lock, flags);
1518                printk(KERN_ERR "%s out of bound pci memory access. "
1519                        "offset is 0x%llx\n", netxen_nic_driver_name,
1520                        (unsigned long long)off);
1521                return -1;
1522        }
1523
1524        addr = (void *)(pci_base_offset(adapter, start));
1525        if (!addr) {
1526                write_unlock_irqrestore(&adapter->adapter_lock, flags);
1527                mem_base = pci_resource_start(adapter->pdev, 0);
1528                mem_page = start & PAGE_MASK;
1529                /* Map two pages whenever user tries to access addresses in two
1530                 * consecutive pages.
1531                 */
1532                if (mem_page != ((start + size - 1) & PAGE_MASK))
1533                        mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE*2);
1534                else
1535                        mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE);
1536                if (mem_ptr == 0UL)
1537                        return -1;
1538                addr = mem_ptr;
1539                addr += start & (PAGE_SIZE - 1);
1540                write_lock_irqsave(&adapter->adapter_lock, flags);
1541        }
1542
1543        switch (size) {
1544        case 1:
1545                writeb(*(uint8_t *)data, addr);
1546                break;
1547        case 2:
1548                writew(*(uint16_t *)data, addr);
1549                break;
1550        case 4:
1551                writel(*(uint32_t *)data, addr);
1552                break;
1553        case 8:
1554                writeq(*(uint64_t *)data, addr);
1555                break;
1556        default:
1557                ret = -1;
1558                break;
1559        }
1560        write_unlock_irqrestore(&adapter->adapter_lock, flags);
1561        DPRINTK(1, INFO, "writing data %llx to offset %llx\n",
1562                        *(unsigned long long *)data, start);
1563        if (mem_ptr)
1564                iounmap(mem_ptr);
1565        return ret;
1566}
1567
1568#define MAX_CTL_CHECK   1000
1569
1570int
1571netxen_nic_pci_mem_write_128M(struct netxen_adapter *adapter,
1572                u64 off, void *data, int size)
1573{
1574        unsigned long   flags, mem_crb;
1575        int             i, j, ret = 0, loop, sz[2], off0;
1576        uint32_t      temp;
1577        uint64_t      off8, tmpw, word[2] = {0, 0};
1578
1579        /*
1580         * If not MN, go check for MS or invalid.
1581         */
1582        if (netxen_nic_pci_mem_bound_check(adapter, off, size) == 0)
1583                return netxen_nic_pci_mem_write_direct(adapter,
1584                                off, data, size);
1585
1586        off8 = off & 0xfffffff8;
1587        off0 = off & 0x7;
1588        sz[0] = (size < (8 - off0)) ? size : (8 - off0);
1589        sz[1] = size - sz[0];
1590        loop = ((off0 + size - 1) >> 3) + 1;
1591        mem_crb = (unsigned long)pci_base_offset(adapter, NETXEN_CRB_DDR_NET);
1592
1593        if ((size != 8) || (off0 != 0))  {
1594                for (i = 0; i < loop; i++) {
1595                        if (adapter->pci_mem_read(adapter,
1596                                off8 + (i << 3), &word[i], 8))
1597                                return -1;
1598                }
1599        }
1600
1601        switch (size) {
1602        case 1:
1603                tmpw = *((uint8_t *)data);
1604                break;
1605        case 2:
1606                tmpw = *((uint16_t *)data);
1607                break;
1608        case 4:
1609                tmpw = *((uint32_t *)data);
1610                break;
1611        case 8:
1612        default:
1613                tmpw = *((uint64_t *)data);
1614                break;
1615        }
1616        word[0] &= ~((~(~0ULL << (sz[0] * 8))) << (off0 * 8));
1617        word[0] |= tmpw << (off0 * 8);
1618
1619        if (loop == 2) {
1620                word[1] &= ~(~0ULL << (sz[1] * 8));
1621                word[1] |= tmpw >> (sz[0] * 8);
1622        }
1623
1624        write_lock_irqsave(&adapter->adapter_lock, flags);
1625        netxen_nic_pci_change_crbwindow_128M(adapter, 0);
1626
1627        for (i = 0; i < loop; i++) {
1628                writel((uint32_t)(off8 + (i << 3)),
1629                        (void *)(mem_crb+MIU_TEST_AGT_ADDR_LO));
1630                writel(0,
1631                        (void *)(mem_crb+MIU_TEST_AGT_ADDR_HI));
1632                writel(word[i] & 0xffffffff,
1633                        (void *)(mem_crb+MIU_TEST_AGT_WRDATA_LO));
1634                writel((word[i] >> 32) & 0xffffffff,
1635                        (void *)(mem_crb+MIU_TEST_AGT_WRDATA_HI));
1636                writel(MIU_TA_CTL_ENABLE|MIU_TA_CTL_WRITE,
1637                        (void *)(mem_crb+MIU_TEST_AGT_CTRL));
1638                writel(MIU_TA_CTL_START|MIU_TA_CTL_ENABLE|MIU_TA_CTL_WRITE,
1639                        (void *)(mem_crb+MIU_TEST_AGT_CTRL));
1640
1641                for (j = 0; j < MAX_CTL_CHECK; j++) {
1642                        temp = readl(
1643                             (void *)(mem_crb+MIU_TEST_AGT_CTRL));
1644                        if ((temp & MIU_TA_CTL_BUSY) == 0)
1645                                break;
1646                }
1647
1648                if (j >= MAX_CTL_CHECK) {
1649                        printk("%s: %s Fail to write through agent\n",
1650                                        __func__, netxen_nic_driver_name);
1651                        ret = -1;
1652                        break;
1653                }
1654        }
1655
1656        netxen_nic_pci_change_crbwindow_128M(adapter, 1);
1657        write_unlock_irqrestore(&adapter->adapter_lock, flags);
1658        return ret;
1659}
1660
1661int
1662netxen_nic_pci_mem_read_128M(struct netxen_adapter *adapter,
1663                u64 off, void *data, int size)
1664{
1665        unsigned long   flags, mem_crb;
1666        int             i, j = 0, k, start, end, loop, sz[2], off0[2];
1667        uint32_t      temp;
1668        uint64_t      off8, val, word[2] = {0, 0};
1669
1670
1671        /*
1672         * If not MN, go check for MS or invalid.
1673         */
1674        if (netxen_nic_pci_mem_bound_check(adapter, off, size) == 0)
1675                return netxen_nic_pci_mem_read_direct(adapter, off, data, size);
1676
1677        off8 = off & 0xfffffff8;
1678        off0[0] = off & 0x7;
1679        off0[1] = 0;
1680        sz[0] = (size < (8 - off0[0])) ? size : (8 - off0[0]);
1681        sz[1] = size - sz[0];
1682        loop = ((off0[0] + size - 1) >> 3) + 1;
1683        mem_crb = (unsigned long)pci_base_offset(adapter, NETXEN_CRB_DDR_NET);
1684
1685        write_lock_irqsave(&adapter->adapter_lock, flags);
1686        netxen_nic_pci_change_crbwindow_128M(adapter, 0);
1687
1688        for (i = 0; i < loop; i++) {
1689                writel((uint32_t)(off8 + (i << 3)),
1690                        (void *)(mem_crb+MIU_TEST_AGT_ADDR_LO));
1691                writel(0,
1692                        (void *)(mem_crb+MIU_TEST_AGT_ADDR_HI));
1693                writel(MIU_TA_CTL_ENABLE,
1694                        (void *)(mem_crb+MIU_TEST_AGT_CTRL));
1695                writel(MIU_TA_CTL_START|MIU_TA_CTL_ENABLE,
1696                        (void *)(mem_crb+MIU_TEST_AGT_CTRL));
1697
1698                for (j = 0; j < MAX_CTL_CHECK; j++) {
1699                        temp = readl(
1700                              (void *)(mem_crb+MIU_TEST_AGT_CTRL));
1701                        if ((temp & MIU_TA_CTL_BUSY) == 0)
1702                                break;
1703                }
1704
1705                if (j >= MAX_CTL_CHECK) {
1706                        printk(KERN_ERR "%s: %s Fail to read through agent\n",
1707                                        __func__, netxen_nic_driver_name);
1708                        break;
1709                }
1710
1711                start = off0[i] >> 2;
1712                end   = (off0[i] + sz[i] - 1) >> 2;
1713                for (k = start; k <= end; k++) {
1714                        word[i] |= ((uint64_t) readl(
1715                                    (void *)(mem_crb +
1716                                    MIU_TEST_AGT_RDDATA(k))) << (32*k));
1717                }
1718        }
1719
1720        netxen_nic_pci_change_crbwindow_128M(adapter, 1);
1721        write_unlock_irqrestore(&adapter->adapter_lock, flags);
1722
1723        if (j >= MAX_CTL_CHECK)
1724                return -1;
1725
1726        if (sz[0] == 8) {
1727                val = word[0];
1728        } else {
1729                val = ((word[0] >> (off0[0] * 8)) & (~(~0ULL << (sz[0] * 8)))) |
1730                        ((word[1] & (~(~0ULL << (sz[1] * 8)))) << (sz[0] * 8));
1731        }
1732
1733        switch (size) {
1734        case 1:
1735                *(uint8_t  *)data = val;
1736                break;
1737        case 2:
1738                *(uint16_t *)data = val;
1739                break;
1740        case 4:
1741                *(uint32_t *)data = val;
1742                break;
1743        case 8:
1744                *(uint64_t *)data = val;
1745                break;
1746        }
1747        DPRINTK(1, INFO, "read %llx\n", *(unsigned long long *)data);
1748        return 0;
1749}
1750
1751int
1752netxen_nic_pci_mem_write_2M(struct netxen_adapter *adapter,
1753                u64 off, void *data, int size)
1754{
1755        int i, j, ret = 0, loop, sz[2], off0;
1756        uint32_t temp;
1757        uint64_t off8, mem_crb, tmpw, word[2] = {0, 0};
1758
1759        /*
1760         * If not MN, go check for MS or invalid.
1761         */
1762        if (off >= NETXEN_ADDR_QDR_NET && off <= NETXEN_ADDR_QDR_NET_MAX_P3)
1763                mem_crb = NETXEN_CRB_QDR_NET;
1764        else {
1765                mem_crb = NETXEN_CRB_DDR_NET;
1766                if (netxen_nic_pci_mem_bound_check(adapter, off, size) == 0)
1767                        return netxen_nic_pci_mem_write_direct(adapter,
1768                                        off, data, size);
1769        }
1770
1771        off8 = off & 0xfffffff8;
1772        off0 = off & 0x7;
1773        sz[0] = (size < (8 - off0)) ? size : (8 - off0);
1774        sz[1] = size - sz[0];
1775        loop = ((off0 + size - 1) >> 3) + 1;
1776
1777        if ((size != 8) || (off0 != 0)) {
1778                for (i = 0; i < loop; i++) {
1779                        if (adapter->pci_mem_read(adapter, off8 + (i << 3),
1780                                                &word[i], 8))
1781                                return -1;
1782                }
1783        }
1784
1785        switch (size) {
1786        case 1:
1787                tmpw = *((uint8_t *)data);
1788                break;
1789        case 2:
1790                tmpw = *((uint16_t *)data);
1791                break;
1792        case 4:
1793                tmpw = *((uint32_t *)data);
1794                break;
1795        case 8:
1796        default:
1797                tmpw = *((uint64_t *)data);
1798        break;
1799        }
1800
1801        word[0] &= ~((~(~0ULL << (sz[0] * 8))) << (off0 * 8));
1802        word[0] |= tmpw << (off0 * 8);
1803
1804        if (loop == 2) {
1805                word[1] &= ~(~0ULL << (sz[1] * 8));
1806                word[1] |= tmpw >> (sz[0] * 8);
1807        }
1808
1809        /*
1810         * don't lock here - write_wx gets the lock if each time
1811         * write_lock_irqsave(&adapter->adapter_lock, flags);
1812         * netxen_nic_pci_change_crbwindow_128M(adapter, 0);
1813         */
1814
1815        for (i = 0; i < loop; i++) {
1816                temp = off8 + (i << 3);
1817                adapter->hw_write_wx(adapter,
1818                                mem_crb+MIU_TEST_AGT_ADDR_LO, &temp, 4);
1819                temp = 0;
1820                adapter->hw_write_wx(adapter,
1821                                mem_crb+MIU_TEST_AGT_ADDR_HI, &temp, 4);
1822                temp = word[i] & 0xffffffff;
1823                adapter->hw_write_wx(adapter,
1824                                mem_crb+MIU_TEST_AGT_WRDATA_LO, &temp, 4);
1825                temp = (word[i] >> 32) & 0xffffffff;
1826                adapter->hw_write_wx(adapter,
1827                                mem_crb+MIU_TEST_AGT_WRDATA_HI, &temp, 4);
1828                temp = MIU_TA_CTL_ENABLE | MIU_TA_CTL_WRITE;
1829                adapter->hw_write_wx(adapter,
1830                                mem_crb+MIU_TEST_AGT_CTRL, &temp, 4);
1831                temp = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE | MIU_TA_CTL_WRITE;
1832                adapter->hw_write_wx(adapter,
1833                                mem_crb+MIU_TEST_AGT_CTRL, &temp, 4);
1834
1835                for (j = 0; j < MAX_CTL_CHECK; j++) {
1836                        adapter->hw_read_wx(adapter,
1837                                        mem_crb + MIU_TEST_AGT_CTRL, &temp, 4);
1838                        if ((temp & MIU_TA_CTL_BUSY) == 0)
1839                                break;
1840                }
1841
1842                if (j >= MAX_CTL_CHECK) {
1843                        printk(KERN_ERR "%s: Fail to write through agent\n",
1844                                        netxen_nic_driver_name);
1845                        ret = -1;
1846                        break;
1847                }
1848        }
1849
1850        /*
1851         * netxen_nic_pci_change_crbwindow_128M(adapter, 1);
1852         * write_unlock_irqrestore(&adapter->adapter_lock, flags);
1853         */
1854        return ret;
1855}
1856
1857int
1858netxen_nic_pci_mem_read_2M(struct netxen_adapter *adapter,
1859                u64 off, void *data, int size)
1860{
1861        int i, j = 0, k, start, end, loop, sz[2], off0[2];
1862        uint32_t      temp;
1863        uint64_t      off8, val, mem_crb, word[2] = {0, 0};
1864
1865        /*
1866         * If not MN, go check for MS or invalid.
1867         */
1868
1869        if (off >= NETXEN_ADDR_QDR_NET && off <= NETXEN_ADDR_QDR_NET_MAX_P3)
1870                mem_crb = NETXEN_CRB_QDR_NET;
1871        else {
1872                mem_crb = NETXEN_CRB_DDR_NET;
1873                if (netxen_nic_pci_mem_bound_check(adapter, off, size) == 0)
1874                        return netxen_nic_pci_mem_read_direct(adapter,
1875                                        off, data, size);
1876        }
1877
1878        off8 = off & 0xfffffff8;
1879        off0[0] = off & 0x7;
1880        off0[1] = 0;
1881        sz[0] = (size < (8 - off0[0])) ? size : (8 - off0[0]);
1882        sz[1] = size - sz[0];
1883        loop = ((off0[0] + size - 1) >> 3) + 1;
1884
1885        /*
1886         * don't lock here - write_wx gets the lock if each time
1887         * write_lock_irqsave(&adapter->adapter_lock, flags);
1888         * netxen_nic_pci_change_crbwindow_128M(adapter, 0);
1889         */
1890
1891        for (i = 0; i < loop; i++) {
1892                temp = off8 + (i << 3);
1893                adapter->hw_write_wx(adapter,
1894                                mem_crb + MIU_TEST_AGT_ADDR_LO, &temp, 4);
1895                temp = 0;
1896                adapter->hw_write_wx(adapter,
1897                                mem_crb + MIU_TEST_AGT_ADDR_HI, &temp, 4);
1898                temp = MIU_TA_CTL_ENABLE;
1899                adapter->hw_write_wx(adapter,
1900                                mem_crb + MIU_TEST_AGT_CTRL, &temp, 4);
1901                temp = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE;
1902                adapter->hw_write_wx(adapter,
1903                                mem_crb + MIU_TEST_AGT_CTRL, &temp, 4);
1904
1905                for (j = 0; j < MAX_CTL_CHECK; j++) {
1906                        adapter->hw_read_wx(adapter,
1907                                        mem_crb + MIU_TEST_AGT_CTRL, &temp, 4);
1908                        if ((temp & MIU_TA_CTL_BUSY) == 0)
1909                                break;
1910                }
1911
1912                if (j >= MAX_CTL_CHECK) {
1913                        printk(KERN_ERR "%s: Fail to read through agent\n",
1914                                        netxen_nic_driver_name);
1915                        break;
1916                }
1917
1918                start = off0[i] >> 2;
1919                end   = (off0[i] + sz[i] - 1) >> 2;
1920                for (k = start; k <= end; k++) {
1921                        adapter->hw_read_wx(adapter,
1922                                mem_crb + MIU_TEST_AGT_RDDATA(k), &temp, 4);
1923                        word[i] |= ((uint64_t)temp << (32 * k));
1924                }
1925        }
1926
1927        /*
1928         * netxen_nic_pci_change_crbwindow_128M(adapter, 1);
1929         * write_unlock_irqrestore(&adapter->adapter_lock, flags);
1930         */
1931
1932        if (j >= MAX_CTL_CHECK)
1933                return -1;
1934
1935        if (sz[0] == 8) {
1936                val = word[0];
1937        } else {
1938                val = ((word[0] >> (off0[0] * 8)) & (~(~0ULL << (sz[0] * 8)))) |
1939                ((word[1] & (~(~0ULL << (sz[1] * 8)))) << (sz[0] * 8));
1940        }
1941
1942        switch (size) {
1943        case 1:
1944                *(uint8_t  *)data = val;
1945                break;
1946        case 2:
1947                *(uint16_t *)data = val;
1948                break;
1949        case 4:
1950                *(uint32_t *)data = val;
1951                break;
1952        case 8:
1953                *(uint64_t *)data = val;
1954                break;
1955        }
1956        DPRINTK(1, INFO, "read %llx\n", *(unsigned long long *)data);
1957        return 0;
1958}
1959
1960/*
1961 * Note : only 32-bit writes!
1962 */
1963int netxen_nic_pci_write_immediate_2M(struct netxen_adapter *adapter,
1964                u64 off, u32 data)
1965{
1966        adapter->hw_write_wx(adapter, off, &data, 4);
1967
1968        return 0;
1969}
1970
1971u32 netxen_nic_pci_read_immediate_2M(struct netxen_adapter *adapter, u64 off)
1972{
1973        u32 temp;
1974        adapter->hw_read_wx(adapter, off, &temp, 4);
1975        return temp;
1976}
1977
1978void netxen_nic_pci_write_normalize_2M(struct netxen_adapter *adapter,
1979                u64 off, u32 data)
1980{
1981        adapter->hw_write_wx(adapter, off, &data, 4);
1982}
1983
1984u32 netxen_nic_pci_read_normalize_2M(struct netxen_adapter *adapter, u64 off)
1985{
1986        u32 temp;
1987        adapter->hw_read_wx(adapter, off, &temp, 4);
1988        return temp;
1989}
1990
1991#if 0
1992int
1993netxen_nic_erase_pxe(struct netxen_adapter *adapter)
1994{
1995        if (netxen_rom_fast_write(adapter, NETXEN_PXE_START, 0) == -1) {
1996                printk(KERN_ERR "%s: erase pxe failed\n",
1997                        netxen_nic_driver_name);
1998                return -1;
1999        }
2000        return 0;
2001}
2002#endif  /*  0  */
2003
2004int netxen_nic_get_board_info(struct netxen_adapter *adapter)
2005{
2006        int rv = 0;
2007        int addr = NETXEN_BRDCFG_START;
2008        struct netxen_board_info *boardinfo;
2009        int index;
2010        u32 *ptr32;
2011
2012        boardinfo = &adapter->ahw.boardcfg;
2013        ptr32 = (u32 *) boardinfo;
2014
2015        for (index = 0; index < sizeof(struct netxen_board_info) / sizeof(u32);
2016             index++) {
2017                if (netxen_rom_fast_read(adapter, addr, ptr32) == -1) {
2018                        return -EIO;
2019                }
2020                ptr32++;
2021                addr += sizeof(u32);
2022        }
2023        if (boardinfo->magic != NETXEN_BDINFO_MAGIC) {
2024                printk("%s: ERROR reading %s board config."
2025                       " Read %x, expected %x\n", netxen_nic_driver_name,
2026                       netxen_nic_driver_name,
2027                       boardinfo->magic, NETXEN_BDINFO_MAGIC);
2028                rv = -1;
2029        }
2030        if (boardinfo->header_version != NETXEN_BDINFO_VERSION) {
2031                printk("%s: Unknown board config version."
2032                       " Read %x, expected %x\n", netxen_nic_driver_name,
2033                       boardinfo->header_version, NETXEN_BDINFO_VERSION);
2034                rv = -1;
2035        }
2036
2037        DPRINTK(INFO, "Discovered board type:0x%x  ", boardinfo->board_type);
2038        switch ((netxen_brdtype_t) boardinfo->board_type) {
2039        case NETXEN_BRDTYPE_P2_SB35_4G:
2040                adapter->ahw.board_type = NETXEN_NIC_GBE;
2041                break;
2042        case NETXEN_BRDTYPE_P2_SB31_10G:
2043        case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
2044        case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
2045        case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
2046        case NETXEN_BRDTYPE_P3_HMEZ:
2047        case NETXEN_BRDTYPE_P3_XG_LOM:
2048        case NETXEN_BRDTYPE_P3_10G_CX4:
2049        case NETXEN_BRDTYPE_P3_10G_CX4_LP:
2050        case NETXEN_BRDTYPE_P3_IMEZ:
2051        case NETXEN_BRDTYPE_P3_10G_SFP_PLUS:
2052        case NETXEN_BRDTYPE_P3_10G_SFP_CT:
2053        case NETXEN_BRDTYPE_P3_10G_SFP_QT:
2054        case NETXEN_BRDTYPE_P3_10G_XFP:
2055        case NETXEN_BRDTYPE_P3_10000_BASE_T:
2056
2057                adapter->ahw.board_type = NETXEN_NIC_XGBE;
2058                break;
2059        case NETXEN_BRDTYPE_P1_BD:
2060        case NETXEN_BRDTYPE_P1_SB:
2061        case NETXEN_BRDTYPE_P1_SMAX:
2062        case NETXEN_BRDTYPE_P1_SOCK:
2063        case NETXEN_BRDTYPE_P3_REF_QG:
2064        case NETXEN_BRDTYPE_P3_4_GB:
2065        case NETXEN_BRDTYPE_P3_4_GB_MM:
2066
2067                adapter->ahw.board_type = NETXEN_NIC_GBE;
2068                break;
2069        default:
2070                printk("%s: Unknown(%x)\n", netxen_nic_driver_name,
2071                       boardinfo->board_type);
2072                rv = -ENODEV;
2073                break;
2074        }
2075
2076        return rv;
2077}
2078
2079/* NIU access sections */
2080
2081int netxen_nic_set_mtu_gb(struct netxen_adapter *adapter, int new_mtu)
2082{
2083        new_mtu += MTU_FUDGE_FACTOR;
2084        netxen_nic_write_w0(adapter,
2085                NETXEN_NIU_GB_MAX_FRAME_SIZE(adapter->physical_port),
2086                new_mtu);
2087        return 0;
2088}
2089
2090int netxen_nic_set_mtu_xgb(struct netxen_adapter *adapter, int new_mtu)
2091{
2092        new_mtu += MTU_FUDGE_FACTOR;
2093        if (adapter->physical_port == 0)
2094                netxen_nic_write_w0(adapter, NETXEN_NIU_XGE_MAX_FRAME_SIZE,
2095                                new_mtu);
2096        else
2097                netxen_nic_write_w0(adapter, NETXEN_NIU_XG1_MAX_FRAME_SIZE,
2098                                new_mtu);
2099        return 0;
2100}
2101
2102void
2103netxen_crb_writelit_adapter(struct netxen_adapter *adapter,
2104                unsigned long off, int data)
2105{
2106        adapter->hw_write_wx(adapter, off, &data, 4);
2107}
2108
2109void netxen_nic_set_link_parameters(struct netxen_adapter *adapter)
2110{
2111        __u32 status;
2112        __u32 autoneg;
2113        __u32 mode;
2114        __u32 port_mode;
2115
2116        netxen_nic_read_w0(adapter, NETXEN_NIU_MODE, &mode);
2117        if (netxen_get_niu_enable_ge(mode)) {        /* Gb 10/100/1000 Mbps mode */
2118
2119                adapter->hw_read_wx(adapter,
2120                                NETXEN_PORT_MODE_ADDR, &port_mode, 4);
2121                if (port_mode == NETXEN_PORT_MODE_802_3_AP) {
2122                        adapter->link_speed   = SPEED_1000;
2123                        adapter->link_duplex  = DUPLEX_FULL;
2124                        adapter->link_autoneg = AUTONEG_DISABLE;
2125                        return;
2126                }
2127
2128                if (adapter->phy_read
2129                    && adapter->phy_read(adapter,
2130                             NETXEN_NIU_GB_MII_MGMT_ADDR_PHY_STATUS,
2131                             &status) == 0) {
2132                        if (netxen_get_phy_link(status)) {
2133                                switch (netxen_get_phy_speed(status)) {
2134                                case 0:
2135                                        adapter->link_speed = SPEED_10;
2136                                        break;
2137                                case 1:
2138                                        adapter->link_speed = SPEED_100;
2139                                        break;
2140                                case 2:
2141                                        adapter->link_speed = SPEED_1000;
2142                                        break;
2143                                default:
2144                                        adapter->link_speed = -1;
2145                                        break;
2146                                }
2147                                switch (netxen_get_phy_duplex(status)) {
2148                                case 0:
2149                                        adapter->link_duplex = DUPLEX_HALF;
2150                                        break;
2151                                case 1:
2152                                        adapter->link_duplex = DUPLEX_FULL;
2153                                        break;
2154                                default:
2155                                        adapter->link_duplex = -1;
2156                                        break;
2157                                }
2158                                if (adapter->phy_read
2159                                    && adapter->phy_read(adapter,
2160                                             NETXEN_NIU_GB_MII_MGMT_ADDR_AUTONEG,
2161                                             &autoneg) != 0)
2162                                        adapter->link_autoneg = autoneg;
2163                        } else
2164                                goto link_down;
2165                } else {
2166                      link_down:
2167                        adapter->link_speed = -1;
2168                        adapter->link_duplex = -1;
2169                }
2170        }
2171}
2172
2173void netxen_nic_flash_print(struct netxen_adapter *adapter)
2174{
2175        u32 fw_major = 0;
2176        u32 fw_minor = 0;
2177        u32 fw_build = 0;
2178        char brd_name[NETXEN_MAX_SHORT_NAME];
2179        char serial_num[32];
2180        int i, addr;
2181        __le32 *ptr32;
2182
2183        struct netxen_board_info *board_info = &(adapter->ahw.boardcfg);
2184
2185        adapter->driver_mismatch = 0;
2186
2187        ptr32 = (u32 *)&serial_num;
2188        addr = NETXEN_USER_START +
2189               offsetof(struct netxen_new_user_info, serial_num);
2190        for (i = 0; i < 8; i++) {
2191                if (netxen_rom_fast_read(adapter, addr, ptr32) == -1) {
2192                        printk("%s: ERROR reading %s board userarea.\n",
2193                               netxen_nic_driver_name,
2194                               netxen_nic_driver_name);
2195                        adapter->driver_mismatch = 1;
2196                        return;
2197                }
2198                ptr32++;
2199                addr += sizeof(u32);
2200        }
2201
2202        adapter->hw_read_wx(adapter, NETXEN_FW_VERSION_MAJOR, &fw_major, 4);
2203        adapter->hw_read_wx(adapter, NETXEN_FW_VERSION_MINOR, &fw_minor, 4);
2204        adapter->hw_read_wx(adapter, NETXEN_FW_VERSION_SUB, &fw_build, 4);
2205
2206        adapter->fw_major = fw_major;
2207
2208        if (adapter->portnum == 0) {
2209                get_brd_name_by_type(board_info->board_type, brd_name);
2210
2211                printk(KERN_INFO "NetXen %s Board S/N %s  Chip rev 0x%x\n",
2212                                brd_name, serial_num, adapter->ahw.revision_id);
2213                printk(KERN_INFO "NetXen Firmware version %d.%d.%d\n",
2214                                fw_major, fw_minor, fw_build);
2215        }
2216
2217        if (NETXEN_VERSION_CODE(fw_major, fw_minor, fw_build) <
2218                        NETXEN_VERSION_CODE(3, 4, 216)) {
2219                adapter->driver_mismatch = 1;
2220                printk(KERN_ERR "%s: firmware version %d.%d.%d unsupported\n",
2221                                netxen_nic_driver_name,
2222                                fw_major, fw_minor, fw_build);
2223                return;
2224        }
2225}
2226