linux/drivers/net/netxen/netxen_nic_niu.c
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   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 * Provides access to the Network Interface Unit h/w block.
  31 *
  32 */
  33
  34#include "netxen_nic.h"
  35
  36#define NETXEN_GB_MAC_SOFT_RESET        0x80000000
  37#define NETXEN_GB_MAC_RESET_PROT_BLK   0x000F0000
  38#define NETXEN_GB_MAC_ENABLE_TX_RX     0x00000005
  39#define NETXEN_GB_MAC_PAUSED_FRMS      0x00000020
  40
  41static long phy_lock_timeout = 100000000;
  42
  43static inline int phy_lock(struct netxen_adapter *adapter)
  44{
  45        int i;
  46        int done = 0, timeout = 0;
  47
  48        while (!done) {
  49                done =
  50                    readl(pci_base_offset
  51                          (adapter, NETXEN_PCIE_REG(PCIE_SEM3_LOCK)));
  52                if (done == 1)
  53                        break;
  54                if (timeout >= phy_lock_timeout) {
  55                        return -1;
  56                }
  57                timeout++;
  58                if (!in_atomic())
  59                        schedule();
  60                else {
  61                        for (i = 0; i < 20; i++)
  62                                cpu_relax();
  63                }
  64        }
  65
  66        writel(PHY_LOCK_DRIVER,
  67               NETXEN_CRB_NORMALIZE(adapter, NETXEN_PHY_LOCK_ID));
  68        return 0;
  69}
  70
  71static inline int phy_unlock(struct netxen_adapter *adapter)
  72{
  73        readl(pci_base_offset(adapter, NETXEN_PCIE_REG(PCIE_SEM3_UNLOCK)));
  74
  75        return 0;
  76}
  77
  78/* 
  79 * netxen_niu_gbe_phy_read - read a register from the GbE PHY via
  80 * mii management interface.
  81 *
  82 * Note: The MII management interface goes through port 0.
  83 *      Individual phys are addressed as follows:
  84 * @param phy  [15:8]  phy id
  85 * @param reg  [7:0]   register number
  86 *
  87 * @returns  0 on success
  88 *        -1 on error
  89 *
  90 */
  91int netxen_niu_gbe_phy_read(struct netxen_adapter *adapter, long reg, 
  92                                __u32 * readval)
  93{
  94        long timeout = 0;
  95        long result = 0;
  96        long restore = 0;
  97        long phy = physical_port[adapter->portnum];
  98        __u32 address;
  99        __u32 command;
 100        __u32 status;
 101        __u32 mac_cfg0;
 102
 103        if (phy_lock(adapter) != 0) {
 104                return -1;
 105        }
 106
 107        /*
 108         * MII mgmt all goes through port 0 MAC interface,
 109         * so it cannot be in reset
 110         */
 111
 112        if (netxen_nic_hw_read_wx(adapter, NETXEN_NIU_GB_MAC_CONFIG_0(0),
 113                                  &mac_cfg0, 4))
 114                return -EIO;
 115        if (netxen_gb_get_soft_reset(mac_cfg0)) {
 116                __u32 temp;
 117                temp = 0;
 118                netxen_gb_tx_reset_pb(temp);
 119                netxen_gb_rx_reset_pb(temp);
 120                netxen_gb_tx_reset_mac(temp);
 121                netxen_gb_rx_reset_mac(temp);
 122                if (netxen_nic_hw_write_wx(adapter,
 123                                           NETXEN_NIU_GB_MAC_CONFIG_0(0),
 124                                           &temp, 4))
 125                        return -EIO;
 126                restore = 1;
 127        }
 128
 129        address = 0;
 130        netxen_gb_mii_mgmt_reg_addr(address, reg);
 131        netxen_gb_mii_mgmt_phy_addr(address, phy);
 132        if (netxen_nic_hw_write_wx(adapter, NETXEN_NIU_GB_MII_MGMT_ADDR(0),
 133                                   &address, 4))
 134                return -EIO;
 135        command = 0;            /* turn off any prior activity */
 136        if (netxen_nic_hw_write_wx(adapter, NETXEN_NIU_GB_MII_MGMT_COMMAND(0),
 137                                   &command, 4))
 138                return -EIO;
 139        /* send read command */
 140        netxen_gb_mii_mgmt_set_read_cycle(command);
 141        if (netxen_nic_hw_write_wx(adapter, NETXEN_NIU_GB_MII_MGMT_COMMAND(0),
 142                                   &command, 4))
 143                return -EIO;
 144
 145        status = 0;
 146        do {
 147                if (netxen_nic_hw_read_wx(adapter,
 148                                          NETXEN_NIU_GB_MII_MGMT_INDICATE(0),
 149                                          &status, 4))
 150                        return -EIO;
 151                timeout++;
 152        } while ((netxen_get_gb_mii_mgmt_busy(status)
 153                  || netxen_get_gb_mii_mgmt_notvalid(status))
 154                 && (timeout++ < NETXEN_NIU_PHY_WAITMAX));
 155
 156        if (timeout < NETXEN_NIU_PHY_WAITMAX) {
 157                if (netxen_nic_hw_read_wx(adapter,
 158                                          NETXEN_NIU_GB_MII_MGMT_STATUS(0),
 159                                          readval, 4))
 160                        return -EIO;
 161                result = 0;
 162        } else
 163                result = -1;
 164
 165        if (restore)
 166                if (netxen_nic_hw_write_wx(adapter,
 167                                           NETXEN_NIU_GB_MAC_CONFIG_0(0),
 168                                           &mac_cfg0, 4))
 169                        return -EIO;
 170        phy_unlock(adapter);
 171        return result;
 172}
 173
 174/* 
 175 * netxen_niu_gbe_phy_write - write a register to the GbE PHY via
 176 * mii management interface.
 177 *
 178 * Note: The MII management interface goes through port 0.
 179 *      Individual phys are addressed as follows:
 180 * @param phy      [15:8]  phy id
 181 * @param reg      [7:0]   register number
 182 *
 183 * @returns  0 on success
 184 *        -1 on error
 185 *
 186 */
 187int netxen_niu_gbe_phy_write(struct netxen_adapter *adapter, long reg, 
 188                                __u32 val)
 189{
 190        long timeout = 0;
 191        long result = 0;
 192        long restore = 0;
 193        long phy = physical_port[adapter->portnum];
 194        __u32 address;
 195        __u32 command;
 196        __u32 status;
 197        __u32 mac_cfg0;
 198
 199        /*
 200         * MII mgmt all goes through port 0 MAC interface, so it
 201         * cannot be in reset
 202         */
 203
 204        if (netxen_nic_hw_read_wx(adapter, NETXEN_NIU_GB_MAC_CONFIG_0(0),
 205                                  &mac_cfg0, 4))
 206                return -EIO;
 207        if (netxen_gb_get_soft_reset(mac_cfg0)) {
 208                __u32 temp;
 209                temp = 0;
 210                netxen_gb_tx_reset_pb(temp);
 211                netxen_gb_rx_reset_pb(temp);
 212                netxen_gb_tx_reset_mac(temp);
 213                netxen_gb_rx_reset_mac(temp);
 214
 215                if (netxen_nic_hw_write_wx(adapter,
 216                                           NETXEN_NIU_GB_MAC_CONFIG_0(0),
 217                                           &temp, 4))
 218                        return -EIO;
 219                restore = 1;
 220        }
 221
 222        command = 0;            /* turn off any prior activity */
 223        if (netxen_nic_hw_write_wx(adapter, NETXEN_NIU_GB_MII_MGMT_COMMAND(0),
 224                                   &command, 4))
 225                return -EIO;
 226
 227        address = 0;
 228        netxen_gb_mii_mgmt_reg_addr(address, reg);
 229        netxen_gb_mii_mgmt_phy_addr(address, phy);
 230        if (netxen_nic_hw_write_wx(adapter, NETXEN_NIU_GB_MII_MGMT_ADDR(0),
 231                                   &address, 4))
 232                return -EIO;
 233
 234        if (netxen_nic_hw_write_wx(adapter, NETXEN_NIU_GB_MII_MGMT_CTRL(0),
 235                                   &val, 4))
 236                return -EIO;
 237
 238        status = 0;
 239        do {
 240                if (netxen_nic_hw_read_wx(adapter,
 241                                          NETXEN_NIU_GB_MII_MGMT_INDICATE(0),
 242                                          &status, 4))
 243                        return -EIO;
 244                timeout++;
 245        } while ((netxen_get_gb_mii_mgmt_busy(status))
 246                 && (timeout++ < NETXEN_NIU_PHY_WAITMAX));
 247
 248        if (timeout < NETXEN_NIU_PHY_WAITMAX)
 249                result = 0;
 250        else
 251                result = -EIO;
 252
 253        /* restore the state of port 0 MAC in case we tampered with it */
 254        if (restore)
 255                if (netxen_nic_hw_write_wx(adapter,
 256                                           NETXEN_NIU_GB_MAC_CONFIG_0(0),
 257                                           &mac_cfg0, 4))
 258                        return -EIO;
 259
 260        return result;
 261}
 262
 263int netxen_niu_xgbe_enable_phy_interrupts(struct netxen_adapter *adapter)
 264{
 265        netxen_crb_writelit_adapter(adapter, NETXEN_NIU_INT_MASK, 0x3f);
 266        return 0;
 267}
 268
 269int netxen_niu_gbe_enable_phy_interrupts(struct netxen_adapter *adapter)
 270{
 271        int result = 0;
 272        __u32 enable = 0;
 273        netxen_set_phy_int_link_status_changed(enable);
 274        netxen_set_phy_int_autoneg_completed(enable);
 275        netxen_set_phy_int_speed_changed(enable);
 276
 277        if (0 !=
 278            netxen_niu_gbe_phy_write(adapter, 
 279                                     NETXEN_NIU_GB_MII_MGMT_ADDR_INT_ENABLE,
 280                                     enable))
 281                result = -EIO;
 282
 283        return result;
 284}
 285
 286int netxen_niu_xgbe_disable_phy_interrupts(struct netxen_adapter *adapter)
 287{
 288        netxen_crb_writelit_adapter(adapter, NETXEN_NIU_INT_MASK, 0x7f);
 289        return 0;
 290}
 291
 292int netxen_niu_gbe_disable_phy_interrupts(struct netxen_adapter *adapter)
 293{
 294        int result = 0;
 295        if (0 !=
 296            netxen_niu_gbe_phy_write(adapter,
 297                                     NETXEN_NIU_GB_MII_MGMT_ADDR_INT_ENABLE, 0))
 298                result = -EIO;
 299
 300        return result;
 301}
 302
 303int netxen_niu_xgbe_clear_phy_interrupts(struct netxen_adapter *adapter)
 304{
 305        netxen_crb_writelit_adapter(adapter, NETXEN_NIU_ACTIVE_INT, -1);
 306        return 0;
 307}
 308
 309int netxen_niu_gbe_clear_phy_interrupts(struct netxen_adapter *adapter)
 310{
 311        int result = 0;
 312        if (0 !=
 313            netxen_niu_gbe_phy_write(adapter, 
 314                                     NETXEN_NIU_GB_MII_MGMT_ADDR_INT_STATUS,
 315                                     -EIO))
 316                result = -EIO;
 317
 318        return result;
 319}
 320
 321/* 
 322 * netxen_niu_gbe_set_mii_mode- Set 10/100 Mbit Mode for GbE MAC
 323 *
 324 */
 325void netxen_niu_gbe_set_mii_mode(struct netxen_adapter *adapter,
 326                                 int port, long enable)
 327{
 328        netxen_crb_writelit_adapter(adapter, NETXEN_NIU_MODE, 0x2);
 329        netxen_crb_writelit_adapter(adapter, NETXEN_NIU_GB_MAC_CONFIG_0(port),
 330                                    0x80000000);
 331        netxen_crb_writelit_adapter(adapter, NETXEN_NIU_GB_MAC_CONFIG_0(port),
 332                                    0x0000f0025);
 333        netxen_crb_writelit_adapter(adapter, NETXEN_NIU_GB_MAC_CONFIG_1(port),
 334                                    0xf1ff);
 335        netxen_crb_writelit_adapter(adapter,
 336                                    NETXEN_NIU_GB0_GMII_MODE + (port << 3), 0);
 337        netxen_crb_writelit_adapter(adapter,
 338                                    NETXEN_NIU_GB0_MII_MODE + (port << 3), 1);
 339        netxen_crb_writelit_adapter(adapter,
 340                                    (NETXEN_NIU_GB0_HALF_DUPLEX + port * 4), 0);
 341        netxen_crb_writelit_adapter(adapter,
 342                                    NETXEN_NIU_GB_MII_MGMT_CONFIG(port), 0x7);
 343
 344        if (enable) {
 345                /* 
 346                 * Do NOT enable flow control until a suitable solution for 
 347                 *  shutting down pause frames is found. 
 348                 */
 349                netxen_crb_writelit_adapter(adapter,
 350                                            NETXEN_NIU_GB_MAC_CONFIG_0(port),
 351                                            0x5);
 352        }
 353
 354        if (netxen_niu_gbe_enable_phy_interrupts(adapter))
 355                printk(KERN_ERR PFX "ERROR enabling PHY interrupts\n");
 356        if (netxen_niu_gbe_clear_phy_interrupts(adapter))
 357                printk(KERN_ERR PFX "ERROR clearing PHY interrupts\n");
 358}
 359
 360/* 
 361 * netxen_niu_gbe_set_gmii_mode- Set GbE Mode for GbE MAC
 362 */
 363void netxen_niu_gbe_set_gmii_mode(struct netxen_adapter *adapter,
 364                                  int port, long enable)
 365{
 366        netxen_crb_writelit_adapter(adapter, NETXEN_NIU_MODE, 0x2);
 367        netxen_crb_writelit_adapter(adapter, NETXEN_NIU_GB_MAC_CONFIG_0(port),
 368                                    0x80000000);
 369        netxen_crb_writelit_adapter(adapter, NETXEN_NIU_GB_MAC_CONFIG_0(port),
 370                                    0x0000f0025);
 371        netxen_crb_writelit_adapter(adapter, NETXEN_NIU_GB_MAC_CONFIG_1(port),
 372                                    0xf2ff);
 373        netxen_crb_writelit_adapter(adapter,
 374                                    NETXEN_NIU_GB0_MII_MODE + (port << 3), 0);
 375        netxen_crb_writelit_adapter(adapter,
 376                                    NETXEN_NIU_GB0_GMII_MODE + (port << 3), 1);
 377        netxen_crb_writelit_adapter(adapter,
 378                                    (NETXEN_NIU_GB0_HALF_DUPLEX + port * 4), 0);
 379        netxen_crb_writelit_adapter(adapter,
 380                                    NETXEN_NIU_GB_MII_MGMT_CONFIG(port), 0x7);
 381
 382        if (enable) {
 383                /* 
 384                 * Do NOT enable flow control until a suitable solution for 
 385                 *  shutting down pause frames is found. 
 386                 */
 387                netxen_crb_writelit_adapter(adapter,
 388                                            NETXEN_NIU_GB_MAC_CONFIG_0(port),
 389                                            0x5);
 390        }
 391
 392        if (netxen_niu_gbe_enable_phy_interrupts(adapter))
 393                printk(KERN_ERR PFX "ERROR enabling PHY interrupts\n");
 394        if (netxen_niu_gbe_clear_phy_interrupts(adapter))
 395                printk(KERN_ERR PFX "ERROR clearing PHY interrupts\n");
 396}
 397
 398int netxen_niu_gbe_init_port(struct netxen_adapter *adapter, int port)
 399{
 400        int result = 0;
 401        __u32 status;
 402        if (adapter->disable_phy_interrupts)
 403                adapter->disable_phy_interrupts(adapter);
 404        mdelay(2);
 405
 406        if (0 ==
 407            netxen_niu_gbe_phy_read(adapter,
 408                                    NETXEN_NIU_GB_MII_MGMT_ADDR_PHY_STATUS,
 409                                    &status)) {
 410                if (netxen_get_phy_link(status)) {
 411                        if (netxen_get_phy_speed(status) == 2) {
 412                                netxen_niu_gbe_set_gmii_mode(adapter, port, 1);
 413                        } else if ((netxen_get_phy_speed(status) == 1)
 414                                   || (netxen_get_phy_speed(status) == 0)) {
 415                                netxen_niu_gbe_set_mii_mode(adapter, port, 1);
 416                        } else {
 417                                result = -1;
 418                        }
 419
 420                } else {
 421                        /*
 422                         * We don't have link. Cable  must be unconnected.
 423                         * Enable phy interrupts so we take action when
 424                         * plugged in.
 425                         */
 426
 427                        netxen_crb_writelit_adapter(adapter,
 428                                                    NETXEN_NIU_GB_MAC_CONFIG_0
 429                                                    (port),
 430                                                    NETXEN_GB_MAC_SOFT_RESET);
 431                        netxen_crb_writelit_adapter(adapter,
 432                                                    NETXEN_NIU_GB_MAC_CONFIG_0
 433                                                    (port),
 434                                                    NETXEN_GB_MAC_RESET_PROT_BLK
 435                                                    | NETXEN_GB_MAC_ENABLE_TX_RX
 436                                                    |
 437                                                    NETXEN_GB_MAC_PAUSED_FRMS);
 438                        if (netxen_niu_gbe_clear_phy_interrupts(adapter))
 439                                printk(KERN_ERR PFX
 440                                       "ERROR clearing PHY interrupts\n");
 441                        if (netxen_niu_gbe_enable_phy_interrupts(adapter))
 442                                printk(KERN_ERR PFX
 443                                       "ERROR enabling PHY interrupts\n");
 444                        if (netxen_niu_gbe_clear_phy_interrupts(adapter))
 445                                printk(KERN_ERR PFX
 446                                       "ERROR clearing PHY interrupts\n");
 447                        result = -1;
 448                }
 449        } else {
 450                result = -EIO;
 451        }
 452        return result;
 453}
 454
 455int netxen_niu_xg_init_port(struct netxen_adapter *adapter, int port)
 456{
 457        u32 portnum = physical_port[adapter->portnum];
 458
 459        netxen_crb_writelit_adapter(adapter,
 460                NETXEN_NIU_XGE_CONFIG_1+(0x10000*portnum), 0x1447);
 461        netxen_crb_writelit_adapter(adapter,
 462                NETXEN_NIU_XGE_CONFIG_0+(0x10000*portnum), 0x5);
 463
 464        return 0;
 465}
 466
 467/* 
 468 * netxen_niu_gbe_handle_phy_interrupt - Handles GbE PHY interrupts
 469 * @param enable 0 means don't enable the port
 470 *               1 means enable (or re-enable) the port
 471 */
 472int netxen_niu_gbe_handle_phy_interrupt(struct netxen_adapter *adapter,
 473                                        int port, long enable)
 474{
 475        int result = 0;
 476        __u32 int_src;
 477
 478        printk(KERN_INFO PFX "NETXEN: Handling PHY interrupt on port %d"
 479               " (device enable = %d)\n", (int)port, (int)enable);
 480
 481        /*
 482         * The read of the PHY INT status will clear the pending
 483         * interrupt status
 484         */
 485        if (netxen_niu_gbe_phy_read(adapter,
 486                                    NETXEN_NIU_GB_MII_MGMT_ADDR_INT_STATUS,
 487                                    &int_src) != 0)
 488                result = -EINVAL;
 489        else {
 490                printk(KERN_INFO PFX "PHY Interrupt source = 0x%x \n", int_src);
 491                if (netxen_get_phy_int_jabber(int_src))
 492                        printk(KERN_INFO PFX "jabber Interrupt ");
 493                if (netxen_get_phy_int_polarity_changed(int_src))
 494                        printk(KERN_INFO PFX "polarity changed ");
 495                if (netxen_get_phy_int_energy_detect(int_src))
 496                        printk(KERN_INFO PFX "energy detect \n");
 497                if (netxen_get_phy_int_downshift(int_src))
 498                        printk(KERN_INFO PFX "downshift \n");
 499                if (netxen_get_phy_int_mdi_xover_changed(int_src))
 500                        printk(KERN_INFO PFX "mdi_xover_changed ");
 501                if (netxen_get_phy_int_fifo_over_underflow(int_src))
 502                        printk(KERN_INFO PFX "fifo_over_underflow ");
 503                if (netxen_get_phy_int_false_carrier(int_src))
 504                        printk(KERN_INFO PFX "false_carrier ");
 505                if (netxen_get_phy_int_symbol_error(int_src))
 506                        printk(KERN_INFO PFX "symbol_error ");
 507                if (netxen_get_phy_int_autoneg_completed(int_src))
 508                        printk(KERN_INFO PFX "autoneg_completed ");
 509                if (netxen_get_phy_int_page_received(int_src))
 510                        printk(KERN_INFO PFX "page_received ");
 511                if (netxen_get_phy_int_duplex_changed(int_src))
 512                        printk(KERN_INFO PFX "duplex_changed ");
 513                if (netxen_get_phy_int_autoneg_error(int_src))
 514                        printk(KERN_INFO PFX "autoneg_error ");
 515                if ((netxen_get_phy_int_speed_changed(int_src))
 516                    || (netxen_get_phy_int_link_status_changed(int_src))) {
 517                        __u32 status;
 518
 519                        printk(KERN_INFO PFX
 520                               "speed_changed or link status changed");
 521                        if (netxen_niu_gbe_phy_read
 522                            (adapter,
 523                             NETXEN_NIU_GB_MII_MGMT_ADDR_PHY_STATUS,
 524                             &status) == 0) {
 525                                if (netxen_get_phy_speed(status) == 2) {
 526                                        printk
 527                                            (KERN_INFO PFX "Link speed changed"
 528                                             " to 1000 Mbps\n");
 529                                        netxen_niu_gbe_set_gmii_mode(adapter,
 530                                                                     port,
 531                                                                     enable);
 532                                } else if (netxen_get_phy_speed(status) == 1) {
 533                                        printk
 534                                            (KERN_INFO PFX "Link speed changed"
 535                                             " to 100 Mbps\n");
 536                                        netxen_niu_gbe_set_mii_mode(adapter,
 537                                                                    port,
 538                                                                    enable);
 539                                } else if (netxen_get_phy_speed(status) == 0) {
 540                                        printk
 541                                            (KERN_INFO PFX "Link speed changed"
 542                                             " to 10 Mbps\n");
 543                                        netxen_niu_gbe_set_mii_mode(adapter,
 544                                                                    port,
 545                                                                    enable);
 546                                } else {
 547                                        printk(KERN_ERR PFX "ERROR reading"
 548                                               "PHY status. Illegal speed.\n");
 549                                        result = -1;
 550                                }
 551                        } else {
 552                                printk(KERN_ERR PFX
 553                                       "ERROR reading PHY status.\n");
 554                                result = -1;
 555                        }
 556
 557                }
 558                printk(KERN_INFO "\n");
 559        }
 560        return result;
 561}
 562
 563/*
 564 * Return the current station MAC address.
 565 * Note that the passed-in value must already be in network byte order.
 566 */
 567int netxen_niu_macaddr_get(struct netxen_adapter *adapter,
 568                           netxen_ethernet_macaddr_t * addr)
 569{
 570        u32 stationhigh;
 571        u32 stationlow;
 572        int phy = physical_port[adapter->portnum];
 573        u8 val[8];
 574
 575        if (addr == NULL)
 576                return -EINVAL;
 577        if ((phy < 0) || (phy > 3))
 578                return -EINVAL;
 579
 580        if (netxen_nic_hw_read_wx(adapter, NETXEN_NIU_GB_STATION_ADDR_0(phy),
 581                                  &stationhigh, 4))
 582                return -EIO;
 583        if (netxen_nic_hw_read_wx(adapter, NETXEN_NIU_GB_STATION_ADDR_1(phy),
 584                                  &stationlow, 4))
 585                return -EIO;
 586        ((__le32 *)val)[1] = cpu_to_le32(stationhigh);
 587        ((__le32 *)val)[0] = cpu_to_le32(stationlow);
 588
 589        memcpy(addr, val + 2, 6);
 590
 591        return 0;
 592}
 593
 594/*
 595 * Set the station MAC address.
 596 * Note that the passed-in value must already be in network byte order.
 597 */
 598int netxen_niu_macaddr_set(struct netxen_adapter *adapter,
 599                           netxen_ethernet_macaddr_t addr)
 600{
 601        u8 temp[4];
 602        u32 val;
 603        int phy = physical_port[adapter->portnum];
 604        unsigned char mac_addr[6];
 605        int i;
 606        DECLARE_MAC_BUF(mac);
 607
 608        for (i = 0; i < 10; i++) {
 609                temp[0] = temp[1] = 0;
 610                memcpy(temp + 2, addr, 2);
 611                val = le32_to_cpu(*(__le32 *)temp);
 612                if (netxen_nic_hw_write_wx
 613                    (adapter, NETXEN_NIU_GB_STATION_ADDR_1(phy), &val, 4))
 614                        return -EIO;
 615
 616                memcpy(temp, ((u8 *) addr) + 2, sizeof(__le32));
 617                val = le32_to_cpu(*(__le32 *)temp);
 618                if (netxen_nic_hw_write_wx
 619                    (adapter, NETXEN_NIU_GB_STATION_ADDR_0(phy), &val, 4))
 620                        return -2;
 621
 622                netxen_niu_macaddr_get(adapter, 
 623                                       (netxen_ethernet_macaddr_t *) mac_addr);
 624                if (memcmp(mac_addr, addr, 6) == 0)
 625                        break;
 626        }
 627
 628        if (i == 10) {
 629                printk(KERN_ERR "%s: cannot set Mac addr for %s\n",
 630                       netxen_nic_driver_name, adapter->netdev->name);
 631                printk(KERN_ERR "MAC address set: %s.\n",
 632                       print_mac(mac, addr));
 633                printk(KERN_ERR "MAC address get: %s.\n",
 634                       print_mac(mac, mac_addr));
 635        }
 636        return 0;
 637}
 638
 639/* Enable a GbE interface */
 640int netxen_niu_enable_gbe_port(struct netxen_adapter *adapter,
 641                               int port, netxen_niu_gbe_ifmode_t mode)
 642{
 643        __u32 mac_cfg0;
 644        __u32 mac_cfg1;
 645        __u32 mii_cfg;
 646
 647        if ((port < 0) || (port > NETXEN_NIU_MAX_GBE_PORTS))
 648                return -EINVAL;
 649
 650        mac_cfg0 = 0;
 651        netxen_gb_soft_reset(mac_cfg0);
 652        if (netxen_nic_hw_write_wx(adapter, NETXEN_NIU_GB_MAC_CONFIG_0(port),
 653                                   &mac_cfg0, 4))
 654                return -EIO;
 655        mac_cfg0 = 0;
 656        netxen_gb_enable_tx(mac_cfg0);
 657        netxen_gb_enable_rx(mac_cfg0);
 658        netxen_gb_unset_rx_flowctl(mac_cfg0);
 659        netxen_gb_tx_reset_pb(mac_cfg0);
 660        netxen_gb_rx_reset_pb(mac_cfg0);
 661        netxen_gb_tx_reset_mac(mac_cfg0);
 662        netxen_gb_rx_reset_mac(mac_cfg0);
 663
 664        if (netxen_nic_hw_write_wx(adapter, NETXEN_NIU_GB_MAC_CONFIG_0(port),
 665                                   &mac_cfg0, 4))
 666                return -EIO;
 667        mac_cfg1 = 0;
 668        netxen_gb_set_preamblelen(mac_cfg1, 0xf);
 669        netxen_gb_set_duplex(mac_cfg1);
 670        netxen_gb_set_crc_enable(mac_cfg1);
 671        netxen_gb_set_padshort(mac_cfg1);
 672        netxen_gb_set_checklength(mac_cfg1);
 673        netxen_gb_set_hugeframes(mac_cfg1);
 674
 675        if (mode == NETXEN_NIU_10_100_MB) {
 676                netxen_gb_set_intfmode(mac_cfg1, 1);
 677                if (netxen_nic_hw_write_wx(adapter,
 678                                           NETXEN_NIU_GB_MAC_CONFIG_1(port),
 679                                           &mac_cfg1, 4))
 680                        return -EIO;
 681
 682                /* set mii mode */
 683                netxen_crb_writelit_adapter(adapter, NETXEN_NIU_GB0_GMII_MODE +
 684                                            (port << 3), 0);
 685                netxen_crb_writelit_adapter(adapter, NETXEN_NIU_GB0_MII_MODE +
 686                                            (port << 3), 1);
 687
 688        } else if (mode == NETXEN_NIU_1000_MB) {
 689                netxen_gb_set_intfmode(mac_cfg1, 2);
 690                if (netxen_nic_hw_write_wx(adapter,
 691                                           NETXEN_NIU_GB_MAC_CONFIG_1(port),
 692                                           &mac_cfg1, 4))
 693                        return -EIO;
 694                /* set gmii mode */
 695                netxen_crb_writelit_adapter(adapter, NETXEN_NIU_GB0_MII_MODE +
 696                                            (port << 3), 0);
 697                netxen_crb_writelit_adapter(adapter, NETXEN_NIU_GB0_GMII_MODE +
 698                                            (port << 3), 1);
 699        }
 700        mii_cfg = 0;
 701        netxen_gb_set_mii_mgmt_clockselect(mii_cfg, 7);
 702        if (netxen_nic_hw_write_wx(adapter, NETXEN_NIU_GB_MII_MGMT_CONFIG(port),
 703                                   &mii_cfg, 4))
 704                return -EIO;
 705        mac_cfg0 = 0;
 706        netxen_gb_enable_tx(mac_cfg0);
 707        netxen_gb_enable_rx(mac_cfg0);
 708        netxen_gb_unset_rx_flowctl(mac_cfg0);
 709        netxen_gb_unset_tx_flowctl(mac_cfg0);
 710
 711        if (netxen_nic_hw_write_wx(adapter, NETXEN_NIU_GB_MAC_CONFIG_0(port),
 712                                   &mac_cfg0, 4))
 713                return -EIO;
 714        return 0;
 715}
 716
 717/* Disable a GbE interface */
 718int netxen_niu_disable_gbe_port(struct netxen_adapter *adapter)
 719{
 720        __u32 mac_cfg0;
 721        u32 port = physical_port[adapter->portnum];
 722
 723        if (port > NETXEN_NIU_MAX_GBE_PORTS)
 724                return -EINVAL;
 725        mac_cfg0 = 0;
 726        netxen_gb_soft_reset(mac_cfg0);
 727        if (netxen_nic_hw_write_wx(adapter, NETXEN_NIU_GB_MAC_CONFIG_0(port),
 728                                   &mac_cfg0, 4))
 729                return -EIO;
 730        return 0;
 731}
 732
 733/* Disable an XG interface */
 734int netxen_niu_disable_xg_port(struct netxen_adapter *adapter)
 735{
 736        __u32 mac_cfg;
 737        u32 port = physical_port[adapter->portnum];
 738
 739        if (port > NETXEN_NIU_MAX_XG_PORTS)
 740                return -EINVAL;
 741
 742        mac_cfg = 0;
 743        if (netxen_nic_hw_write_wx(adapter,
 744                NETXEN_NIU_XGE_CONFIG_0 + (0x10000 * port), &mac_cfg, 4))
 745                return -EIO;
 746        return 0;
 747}
 748
 749/* Set promiscuous mode for a GbE interface */
 750int netxen_niu_set_promiscuous_mode(struct netxen_adapter *adapter, 
 751                                    netxen_niu_prom_mode_t mode)
 752{
 753        __u32 reg;
 754        u32 port = physical_port[adapter->portnum];
 755
 756        if (port > NETXEN_NIU_MAX_GBE_PORTS)
 757                return -EINVAL;
 758
 759        /* save previous contents */
 760        if (netxen_nic_hw_read_wx(adapter, NETXEN_NIU_GB_DROP_WRONGADDR,
 761                                  &reg, 4))
 762                return -EIO;
 763        if (mode == NETXEN_NIU_PROMISC_MODE) {
 764                switch (port) {
 765                case 0:
 766                        netxen_clear_gb_drop_gb0(reg);
 767                        break;
 768                case 1:
 769                        netxen_clear_gb_drop_gb1(reg);
 770                        break;
 771                case 2:
 772                        netxen_clear_gb_drop_gb2(reg);
 773                        break;
 774                case 3:
 775                        netxen_clear_gb_drop_gb3(reg);
 776                        break;
 777                default:
 778                        return -EIO;
 779                }
 780        } else {
 781                switch (port) {
 782                case 0:
 783                        netxen_set_gb_drop_gb0(reg);
 784                        break;
 785                case 1:
 786                        netxen_set_gb_drop_gb1(reg);
 787                        break;
 788                case 2:
 789                        netxen_set_gb_drop_gb2(reg);
 790                        break;
 791                case 3:
 792                        netxen_set_gb_drop_gb3(reg);
 793                        break;
 794                default:
 795                        return -EIO;
 796                }
 797        }
 798        if (netxen_nic_hw_write_wx(adapter, NETXEN_NIU_GB_DROP_WRONGADDR,
 799                                   &reg, 4))
 800                return -EIO;
 801        return 0;
 802}
 803
 804/*
 805 * Set the MAC address for an XG port
 806 * Note that the passed-in value must already be in network byte order.
 807 */
 808int netxen_niu_xg_macaddr_set(struct netxen_adapter *adapter,
 809                              netxen_ethernet_macaddr_t addr)
 810{
 811        int phy = physical_port[adapter->portnum];
 812        u8 temp[4];
 813        u32 val;
 814
 815        if ((phy < 0) || (phy > NETXEN_NIU_MAX_XG_PORTS))
 816                return -EIO;
 817
 818        temp[0] = temp[1] = 0;
 819        switch (phy) {
 820        case 0:
 821            memcpy(temp + 2, addr, 2);
 822            val = le32_to_cpu(*(__le32 *)temp);
 823            if (netxen_nic_hw_write_wx(adapter, NETXEN_NIU_XGE_STATION_ADDR_0_1,
 824                                &val, 4))
 825                return -EIO;
 826
 827            memcpy(&temp, ((u8 *) addr) + 2, sizeof(__le32));
 828            val = le32_to_cpu(*(__le32 *)temp);
 829            if (netxen_nic_hw_write_wx(adapter, NETXEN_NIU_XGE_STATION_ADDR_0_HI,
 830                                &val, 4))
 831                return -EIO;
 832            break;
 833
 834        case 1:
 835            memcpy(temp + 2, addr, 2);
 836            val = le32_to_cpu(*(__le32 *)temp);
 837            if (netxen_nic_hw_write_wx(adapter, NETXEN_NIU_XG1_STATION_ADDR_0_1,
 838                                &val, 4))
 839                return -EIO;
 840
 841            memcpy(&temp, ((u8 *) addr) + 2, sizeof(__le32));
 842            val = le32_to_cpu(*(__le32 *)temp);
 843            if (netxen_nic_hw_write_wx(adapter, NETXEN_NIU_XG1_STATION_ADDR_0_HI,
 844                                &val, 4))
 845                return -EIO;
 846            break;
 847
 848        default:
 849            printk(KERN_ERR "Unknown port %d\n", phy);
 850            break;
 851        }
 852
 853        return 0;
 854}
 855
 856/*
 857 * Return the current station MAC address.
 858 * Note that the passed-in value must already be in network byte order.
 859 */
 860int netxen_niu_xg_macaddr_get(struct netxen_adapter *adapter,
 861                              netxen_ethernet_macaddr_t * addr)
 862{
 863        int phy = physical_port[adapter->portnum];
 864        u32 stationhigh;
 865        u32 stationlow;
 866        u8 val[8];
 867
 868        if (addr == NULL)
 869                return -EINVAL;
 870        if (phy != 0)
 871                return -EINVAL;
 872
 873        if (netxen_nic_hw_read_wx(adapter, NETXEN_NIU_XGE_STATION_ADDR_0_HI,
 874                                  &stationhigh, 4))
 875                return -EIO;
 876        if (netxen_nic_hw_read_wx(adapter, NETXEN_NIU_XGE_STATION_ADDR_0_1,
 877                                  &stationlow, 4))
 878                return -EIO;
 879        ((__le32 *)val)[1] = cpu_to_le32(stationhigh);
 880        ((__le32 *)val)[0] = cpu_to_le32(stationlow);
 881
 882        memcpy(addr, val + 2, 6);
 883
 884        return 0;
 885}
 886
 887int netxen_niu_xg_set_promiscuous_mode(struct netxen_adapter *adapter,
 888                                       netxen_niu_prom_mode_t mode)
 889{
 890        __u32 reg;
 891        u32 port = physical_port[adapter->portnum];
 892
 893        if (port > NETXEN_NIU_MAX_XG_PORTS)
 894                return -EINVAL;
 895
 896        if (netxen_nic_hw_read_wx(adapter,
 897                NETXEN_NIU_XGE_CONFIG_1 + (0x10000 * port), &reg, 4))
 898                        return -EIO;
 899        if (mode == NETXEN_NIU_PROMISC_MODE)
 900                reg = (reg | 0x2000UL);
 901        else
 902                reg = (reg & ~0x2000UL);
 903
 904        netxen_crb_writelit_adapter(adapter,
 905                NETXEN_NIU_XGE_CONFIG_1 + (0x10000 * port), reg);
 906
 907        return 0;
 908}
 909