drivers/net/netxen/netxen_nic_niu.c

   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
  41 static long phy_lock_timeout = 100000000;
  42
  43 static int phy_lock(struct netxen_adapter *adapter)
  44 {
  45         int i;
  46         int done = 0, timeout = 0;
  47
  48         while (!done) {
  49                 done = netxen_nic_reg_read(adapter,
  50                                 NETXEN_PCIE_REG(PCIE_SEM3_LOCK));
  51                 if (done == 1)
  52                         break;
  53                 if (timeout >= phy_lock_timeout) {
  54                         return -1;
  55                 }
  56                 timeout++;
  57                 if (!in_atomic())
  58                         schedule();
  59                 else {
  60                         for (i = 0; i < 20; i++)
  61                                 cpu_relax();
  62                 }
  63         }
  64
  65         netxen_crb_writelit_adapter(adapter,
  66                         NETXEN_PHY_LOCK_ID, PHY_LOCK_DRIVER);
  67         return 0;
  68 }
  69
  70 static int phy_unlock(struct netxen_adapter *adapter)
  71 {
  72         adapter->pci_read_immediate(adapter, NETXEN_PCIE_REG(PCIE_SEM3_UNLOCK));
  73
  74         return 0;
  75 }
  76
  77 /*
  78  * netxen_niu_gbe_phy_read - read a register from the GbE PHY via
  79  * mii management interface.
  80  *
  81  * Note: The MII management interface goes through port 0.
  82  *      Individual phys are addressed as follows:
  83  * @param phy  [15:8]  phy id
  84  * @param reg  [7:0]   register number
  85  *
  86  * @returns  0 on success
  87  *        -1 on error
  88  *
  89  */
  90 int netxen_niu_gbe_phy_read(struct netxen_adapter *adapter, long reg,
  91                                 __u32 * readval)
  92 {
  93         long timeout = 0;
  94         long result = 0;
  95         long restore = 0;
  96         long phy = adapter->physical_port;
  97         __u32 address;
  98         __u32 command;
  99         __u32 status;
 100         __u32 mac_cfg0;
 101
 102         if (phy_lock(adapter) != 0) {
 103                 return -1;
 104         }
 105
 106         /*
 107          * MII mgmt all goes through port 0 MAC interface,
 108          * so it cannot be in reset
 109          */
 110
 111         if (adapter->hw_read_wx(adapter, NETXEN_NIU_GB_MAC_CONFIG_0(0),
 112                                   &mac_cfg0, 4))
 113                 return -EIO;
 114         if (netxen_gb_get_soft_reset(mac_cfg0)) {
 115                 __u32 temp;
 116                 temp = 0;
 117                 netxen_gb_tx_reset_pb(temp);
 118                 netxen_gb_rx_reset_pb(temp);
 119                 netxen_gb_tx_reset_mac(temp);
 120                 netxen_gb_rx_reset_mac(temp);
 121                 if (adapter->hw_write_wx(adapter,
 122                                            NETXEN_NIU_GB_MAC_CONFIG_0(0),
 123                                            &temp, 4))
 124                         return -EIO;
 125                 restore = 1;
 126         }
 127
 128         address = 0;
 129         netxen_gb_mii_mgmt_reg_addr(address, reg);
 130         netxen_gb_mii_mgmt_phy_addr(address, phy);
 131         if (adapter->hw_write_wx(adapter, NETXEN_NIU_GB_MII_MGMT_ADDR(0),
 132                                    &address, 4))
 133                 return -EIO;
 134         command = 0;            /* turn off any prior activity */
 135         if (adapter->hw_write_wx(adapter, NETXEN_NIU_GB_MII_MGMT_COMMAND(0),
 136                                    &command, 4))
 137                 return -EIO;
 138         /* send read command */
 139         netxen_gb_mii_mgmt_set_read_cycle(command);
 140         if (adapter->hw_write_wx(adapter, NETXEN_NIU_GB_MII_MGMT_COMMAND(0),
 141                                    &command, 4))
 142                 return -EIO;
 143
 144         status = 0;
 145         do {
 146                 if (adapter->hw_read_wx(adapter,
 147                                           NETXEN_NIU_GB_MII_MGMT_INDICATE(0),
 148                                           &status, 4))
 149                         return -EIO;
 150                 timeout++;
 151         } while ((netxen_get_gb_mii_mgmt_busy(status)
 152                   || netxen_get_gb_mii_mgmt_notvalid(status))
 153                  && (timeout++ < NETXEN_NIU_PHY_WAITMAX));
 154
 155         if (timeout < NETXEN_NIU_PHY_WAITMAX) {
 156                 if (adapter->hw_read_wx(adapter,
 157                                           NETXEN_NIU_GB_MII_MGMT_STATUS(0),
 158                                           readval, 4))
 159                         return -EIO;
 160                 result = 0;
 161         } else
 162                 result = -1;
 163
 164         if (restore)
 165                 if (adapter->hw_write_wx(adapter,
 166                                            NETXEN_NIU_GB_MAC_CONFIG_0(0),
 167                                            &mac_cfg0, 4))
 168                         return -EIO;
 169         phy_unlock(adapter);
 170         return result;
 171 }
 172
 173 /*
 174  * netxen_niu_gbe_phy_write - write a register to the GbE PHY via
 175  * mii management interface.
 176  *
 177  * Note: The MII management interface goes through port 0.
 178  *      Individual phys are addressed as follows:
 179  * @param phy      [15:8]  phy id
 180  * @param reg      [7:0]   register number
 181  *
 182  * @returns  0 on success
 183  *        -1 on error
 184  *
 185  */
 186 int netxen_niu_gbe_phy_write(struct netxen_adapter *adapter, long reg,
 187                                 __u32 val)
 188 {
 189         long timeout = 0;
 190         long result = 0;
 191         long restore = 0;
 192         long phy = adapter->physical_port;
 193         __u32 address;
 194         __u32 command;
 195         __u32 status;
 196         __u32 mac_cfg0;
 197
 198         /*
 199          * MII mgmt all goes through port 0 MAC interface, so it
 200          * cannot be in reset
 201          */
 202
 203         if (adapter->hw_read_wx(adapter, NETXEN_NIU_GB_MAC_CONFIG_0(0),
 204                                   &mac_cfg0, 4))
 205                 return -EIO;
 206         if (netxen_gb_get_soft_reset(mac_cfg0)) {
 207                 __u32 temp;
 208                 temp = 0;
 209                 netxen_gb_tx_reset_pb(temp);
 210                 netxen_gb_rx_reset_pb(temp);
 211                 netxen_gb_tx_reset_mac(temp);
 212                 netxen_gb_rx_reset_mac(temp);
 213
 214                 if (adapter->hw_write_wx(adapter,
 215                                            NETXEN_NIU_GB_MAC_CONFIG_0(0),
 216                                            &temp, 4))
 217                         return -EIO;
 218                 restore = 1;
 219         }
 220
 221         command = 0;            /* turn off any prior activity */
 222         if (adapter->hw_write_wx(adapter, NETXEN_NIU_GB_MII_MGMT_COMMAND(0),
 223                                    &command, 4))
 224                 return -EIO;
 225
 226         address = 0;
 227         netxen_gb_mii_mgmt_reg_addr(address, reg);
 228         netxen_gb_mii_mgmt_phy_addr(address, phy);
 229         if (adapter->hw_write_wx(adapter, NETXEN_NIU_GB_MII_MGMT_ADDR(0),
 230                                    &address, 4))
 231                 return -EIO;
 232
 233         if (adapter->hw_write_wx(adapter, NETXEN_NIU_GB_MII_MGMT_CTRL(0),
 234                                    &val, 4))
 235                 return -EIO;
 236
 237         status = 0;
 238         do {
 239                 if (adapter->hw_read_wx(adapter,
 240                                           NETXEN_NIU_GB_MII_MGMT_INDICATE(0),
 241                                           &status, 4))
 242                         return -EIO;
 243                 timeout++;
 244         } while ((netxen_get_gb_mii_mgmt_busy(status))
 245                  && (timeout++ < NETXEN_NIU_PHY_WAITMAX));
 246
 247         if (timeout < NETXEN_NIU_PHY_WAITMAX)
 248                 result = 0;
 249         else
 250                 result = -EIO;
 251
 252         /* restore the state of port 0 MAC in case we tampered with it */
 253         if (restore)
 254                 if (adapter->hw_write_wx(adapter,
 255                                            NETXEN_NIU_GB_MAC_CONFIG_0(0),
 256                                            &mac_cfg0, 4))
 257                         return -EIO;
 258
 259         return result;
 260 }
 261
 262 int netxen_niu_xgbe_enable_phy_interrupts(struct netxen_adapter *adapter)
 263 {
 264         netxen_crb_writelit_adapter(adapter, NETXEN_NIU_INT_MASK, 0x3f);
 265         return 0;
 266 }
 267
 268 int netxen_niu_gbe_enable_phy_interrupts(struct netxen_adapter *adapter)
 269 {
 270         int result = 0;
 271         __u32 enable = 0;
 272         netxen_set_phy_int_link_status_changed(enable);
 273         netxen_set_phy_int_autoneg_completed(enable);
 274         netxen_set_phy_int_speed_changed(enable);
 275
 276         if (0 !=
 277             netxen_niu_gbe_phy_write(adapter,
 278                                      NETXEN_NIU_GB_MII_MGMT_ADDR_INT_ENABLE,
 279                                      enable))
 280                 result = -EIO;
 281
 282         return result;
 283 }
 284
 285 int netxen_niu_xgbe_disable_phy_interrupts(struct netxen_adapter *adapter)
 286 {
 287         netxen_crb_writelit_adapter(adapter, NETXEN_NIU_INT_MASK, 0x7f);
 288         return 0;
 289 }
 290
 291 int netxen_niu_gbe_disable_phy_interrupts(struct netxen_adapter *adapter)
 292 {
 293         int result = 0;
 294         if (0 !=
 295             netxen_niu_gbe_phy_write(adapter,
 296                                      NETXEN_NIU_GB_MII_MGMT_ADDR_INT_ENABLE, 0))
 297                 result = -EIO;
 298
 299         return result;
 300 }
 301
 302 #if 0
 303 int 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 #endif  /*  0  */
 309
 310 static int netxen_niu_gbe_clear_phy_interrupts(struct netxen_adapter *adapter)
 311 {
 312         int result = 0;
 313         if (0 !=
 314             netxen_niu_gbe_phy_write(adapter,
 315                                      NETXEN_NIU_GB_MII_MGMT_ADDR_INT_STATUS,
 316                                      -EIO))
 317                 result = -EIO;
 318
 319         return result;
 320 }
 321
 322 /*
 323  * netxen_niu_gbe_set_mii_mode- Set 10/100 Mbit Mode for GbE MAC
 324  *
 325  */
 326 static void netxen_niu_gbe_set_mii_mode(struct netxen_adapter *adapter,
 327                                         int port, long enable)
 328 {
 329         netxen_crb_writelit_adapter(adapter, NETXEN_NIU_MODE, 0x2);
 330         netxen_crb_writelit_adapter(adapter, NETXEN_NIU_GB_MAC_CONFIG_0(port),
 331                                     0x80000000);
 332         netxen_crb_writelit_adapter(adapter, NETXEN_NIU_GB_MAC_CONFIG_0(port),
 333                                     0x0000f0025);
 334         netxen_crb_writelit_adapter(adapter, NETXEN_NIU_GB_MAC_CONFIG_1(port),
 335                                     0xf1ff);
 336         netxen_crb_writelit_adapter(adapter,
 337                                     NETXEN_NIU_GB0_GMII_MODE + (port << 3), 0);
 338         netxen_crb_writelit_adapter(adapter,
 339                                     NETXEN_NIU_GB0_MII_MODE + (port << 3), 1);
 340         netxen_crb_writelit_adapter(adapter,
 341                                     (NETXEN_NIU_GB0_HALF_DUPLEX + port * 4), 0);
 342         netxen_crb_writelit_adapter(adapter,
 343                                     NETXEN_NIU_GB_MII_MGMT_CONFIG(port), 0x7);
 344
 345         if (enable) {
 346                 /*
 347                  * Do NOT enable flow control until a suitable solution for
 348                  *  shutting down pause frames is found.
 349                  */
 350                 netxen_crb_writelit_adapter(adapter,
 351                                             NETXEN_NIU_GB_MAC_CONFIG_0(port),
 352                                             0x5);
 353         }
 354
 355         if (netxen_niu_gbe_enable_phy_interrupts(adapter))
 356                 printk(KERN_ERR PFX "ERROR enabling PHY interrupts\n");
 357         if (netxen_niu_gbe_clear_phy_interrupts(adapter))
 358                 printk(KERN_ERR PFX "ERROR clearing PHY interrupts\n");
 359 }
 360
 361 /*
 362  * netxen_niu_gbe_set_gmii_mode- Set GbE Mode for GbE MAC
 363  */
 364 static void netxen_niu_gbe_set_gmii_mode(struct netxen_adapter *adapter,
 365                                          int port, long enable)
 366 {
 367         netxen_crb_writelit_adapter(adapter, NETXEN_NIU_MODE, 0x2);
 368         netxen_crb_writelit_adapter(adapter, NETXEN_NIU_GB_MAC_CONFIG_0(port),
 369                                     0x80000000);
 370         netxen_crb_writelit_adapter(adapter, NETXEN_NIU_GB_MAC_CONFIG_0(port),
 371                                     0x0000f0025);
 372         netxen_crb_writelit_adapter(adapter, NETXEN_NIU_GB_MAC_CONFIG_1(port),
 373                                     0xf2ff);
 374         netxen_crb_writelit_adapter(adapter,
 375                                     NETXEN_NIU_GB0_MII_MODE + (port << 3), 0);
 376         netxen_crb_writelit_adapter(adapter,
 377                                     NETXEN_NIU_GB0_GMII_MODE + (port << 3), 1);
 378         netxen_crb_writelit_adapter(adapter,
 379                                     (NETXEN_NIU_GB0_HALF_DUPLEX + port * 4), 0);
 380         netxen_crb_writelit_adapter(adapter,
 381                                     NETXEN_NIU_GB_MII_MGMT_CONFIG(port), 0x7);
 382
 383         if (enable) {
 384                 /*
 385                  * Do NOT enable flow control until a suitable solution for
 386                  *  shutting down pause frames is found.
 387                  */
 388                 netxen_crb_writelit_adapter(adapter,
 389                                             NETXEN_NIU_GB_MAC_CONFIG_0(port),
 390                                             0x5);
 391         }
 392
 393         if (netxen_niu_gbe_enable_phy_interrupts(adapter))
 394                 printk(KERN_ERR PFX "ERROR enabling PHY interrupts\n");
 395         if (netxen_niu_gbe_clear_phy_interrupts(adapter))
 396                 printk(KERN_ERR PFX "ERROR clearing PHY interrupts\n");
 397 }
 398
 399 int netxen_niu_gbe_init_port(struct netxen_adapter *adapter, int port)
 400 {
 401         int result = 0;
 402         __u32 status;
 403
 404         if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
 405                 return 0;
 406
 407         if (adapter->disable_phy_interrupts)
 408                 adapter->disable_phy_interrupts(adapter);
 409         mdelay(2);
 410
 411         if (0 == netxen_niu_gbe_phy_read(adapter,
 412                         NETXEN_NIU_GB_MII_MGMT_ADDR_PHY_STATUS, &status)) {
 413                 if (netxen_get_phy_link(status)) {
 414                         if (netxen_get_phy_speed(status) == 2) {
 415                                 netxen_niu_gbe_set_gmii_mode(adapter, port, 1);
 416                         } else if ((netxen_get_phy_speed(status) == 1)
 417                                    || (netxen_get_phy_speed(status) == 0)) {
 418                                 netxen_niu_gbe_set_mii_mode(adapter, port, 1);
 419                         } else {
 420                                 result = -1;
 421                         }
 422
 423                 } else {
 424                         /*
 425                          * We don't have link. Cable  must be unconnected.
 426                          * Enable phy interrupts so we take action when
 427                          * plugged in.
 428                          */
 429
 430                         netxen_crb_writelit_adapter(adapter,
 431                                                     NETXEN_NIU_GB_MAC_CONFIG_0
 432                                                     (port),
 433                                                     NETXEN_GB_MAC_SOFT_RESET);
 434                         netxen_crb_writelit_adapter(adapter,
 435                                                     NETXEN_NIU_GB_MAC_CONFIG_0
 436                                                     (port),
 437                                                     NETXEN_GB_MAC_RESET_PROT_BLK
 438                                                     | NETXEN_GB_MAC_ENABLE_TX_RX
 439                                                     |
 440                                                     NETXEN_GB_MAC_PAUSED_FRMS);
 441                         if (netxen_niu_gbe_clear_phy_interrupts(adapter))
 442                                 printk(KERN_ERR PFX
 443                                        "ERROR clearing PHY interrupts\n");
 444                         if (netxen_niu_gbe_enable_phy_interrupts(adapter))
 445                                 printk(KERN_ERR PFX
 446                                        "ERROR enabling PHY interrupts\n");
 447                         if (netxen_niu_gbe_clear_phy_interrupts(adapter))
 448                                 printk(KERN_ERR PFX
 449                                        "ERROR clearing PHY interrupts\n");
 450                         result = -1;
 451                 }
 452         } else {
 453                 result = -EIO;
 454         }
 455         return result;
 456 }
 457
 458 int netxen_niu_xg_init_port(struct netxen_adapter *adapter, int port)
 459 {
 460         if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
 461                 netxen_crb_writelit_adapter(adapter,
 462                         NETXEN_NIU_XGE_CONFIG_1+(0x10000*port), 0x1447);
 463                 netxen_crb_writelit_adapter(adapter,
 464                         NETXEN_NIU_XGE_CONFIG_0+(0x10000*port), 0x5);
 465         }
 466
 467         return 0;
 468 }
 469
 470 #if 0
 471 /*
 472  * netxen_niu_gbe_handle_phy_interrupt - Handles GbE PHY interrupts
 473  * @param enable 0 means don't enable the port
 474  *               1 means enable (or re-enable) the port
 475  */
 476 int netxen_niu_gbe_handle_phy_interrupt(struct netxen_adapter *adapter,
 477                                         int port, long enable)
 478 {
 479         int result = 0;
 480         __u32 int_src;
 481
 482         printk(KERN_INFO PFX "NETXEN: Handling PHY interrupt on port %d"
 483                " (device enable = %d)\n", (int)port, (int)enable);
 484
 485         /*
 486          * The read of the PHY INT status will clear the pending
 487          * interrupt status
 488          */
 489         if (netxen_niu_gbe_phy_read(adapter,
 490                                     NETXEN_NIU_GB_MII_MGMT_ADDR_INT_STATUS,
 491                                     &int_src) != 0)
 492                 result = -EINVAL;
 493         else {
 494                 printk(KERN_INFO PFX "PHY Interrupt source = 0x%x \n", int_src);
 495                 if (netxen_get_phy_int_jabber(int_src))
 496                         printk(KERN_INFO PFX "jabber Interrupt ");
 497                 if (netxen_get_phy_int_polarity_changed(int_src))
 498                         printk(KERN_INFO PFX "polarity changed ");
 499                 if (netxen_get_phy_int_energy_detect(int_src))
 500                         printk(KERN_INFO PFX "energy detect \n");
 501                 if (netxen_get_phy_int_downshift(int_src))
 502                         printk(KERN_INFO PFX "downshift \n");
 503                 if (netxen_get_phy_int_mdi_xover_changed(int_src))
 504                         printk(KERN_INFO PFX "mdi_xover_changed ");
 505                 if (netxen_get_phy_int_fifo_over_underflow(int_src))
 506                         printk(KERN_INFO PFX "fifo_over_underflow ");
 507                 if (netxen_get_phy_int_false_carrier(int_src))
 508                         printk(KERN_INFO PFX "false_carrier ");
 509                 if (netxen_get_phy_int_symbol_error(int_src))
 510                         printk(KERN_INFO PFX "symbol_error ");
 511                 if (netxen_get_phy_int_autoneg_completed(int_src))
 512                         printk(KERN_INFO PFX "autoneg_completed ");
 513                 if (netxen_get_phy_int_page_received(int_src))
 514                         printk(KERN_INFO PFX "page_received ");
 515                 if (netxen_get_phy_int_duplex_changed(int_src))
 516                         printk(KERN_INFO PFX "duplex_changed ");
 517                 if (netxen_get_phy_int_autoneg_error(int_src))
 518                         printk(KERN_INFO PFX "autoneg_error ");
 519                 if ((netxen_get_phy_int_speed_changed(int_src))
 520                     || (netxen_get_phy_int_link_status_changed(int_src))) {
 521                         __u32 status;
 522
 523                         printk(KERN_INFO PFX
 524                                "speed_changed or link status changed");
 525                         if (netxen_niu_gbe_phy_read
 526                             (adapter,
 527                              NETXEN_NIU_GB_MII_MGMT_ADDR_PHY_STATUS,
 528                              &status) == 0) {
 529                                 if (netxen_get_phy_speed(status) == 2) {
 530                                         printk
 531                                             (KERN_INFO PFX "Link speed changed"
 532                                              " to 1000 Mbps\n");
 533                                         netxen_niu_gbe_set_gmii_mode(adapter,
 534                                                                      port,
 535                                                                      enable);
 536                                 } else if (netxen_get_phy_speed(status) == 1) {
 537                                         printk
 538                                             (KERN_INFO PFX "Link speed changed"
 539                                              " to 100 Mbps\n");
 540                                         netxen_niu_gbe_set_mii_mode(adapter,
 541                                                                     port,
 542                                                                     enable);
 543                                 } else if (netxen_get_phy_speed(status) == 0) {
 544                                         printk
 545                                             (KERN_INFO PFX "Link speed changed"
 546                                              " to 10 Mbps\n");
 547                                         netxen_niu_gbe_set_mii_mode(adapter,
 548                                                                     port,
 549                                                                     enable);
 550                                 } else {
 551                                         printk(KERN_ERR PFX "ERROR reading "
 552                                                "PHY status. Invalid speed.\n");
 553                                         result = -1;
 554                                 }
 555                         } else {
 556                                 printk(KERN_ERR PFX
 557                                        "ERROR reading PHY status.\n");
 558                                 result = -1;
 559                         }
 560
 561                 }
 562                 printk(KERN_INFO "\n");
 563         }
 564         return result;
 565 }
 566 #endif  /*  0  */
 567
 568 /*
 569  * Return the current station MAC address.
 570  * Note that the passed-in value must already be in network byte order.
 571  */
 572 static int netxen_niu_macaddr_get(struct netxen_adapter *adapter,
 573                                   netxen_ethernet_macaddr_t * addr)
 574 {
 575         u32 stationhigh;
 576         u32 stationlow;
 577         int phy = adapter->physical_port;
 578         u8 val[8];
 579
 580         if (addr == NULL)
 581                 return -EINVAL;
 582         if ((phy < 0) || (phy > 3))
 583                 return -EINVAL;
 584
 585         if (adapter->hw_read_wx(adapter, NETXEN_NIU_GB_STATION_ADDR_0(phy),
 586                                   &stationhigh, 4))
 587                 return -EIO;
 588         if (adapter->hw_read_wx(adapter, NETXEN_NIU_GB_STATION_ADDR_1(phy),
 589                                   &stationlow, 4))
 590                 return -EIO;
 591         ((__le32 *)val)[1] = cpu_to_le32(stationhigh);
 592         ((__le32 *)val)[0] = cpu_to_le32(stationlow);
 593
 594         memcpy(addr, val + 2, 6);
 595
 596         return 0;
 597 }
 598
 599 /*
 600  * Set the station MAC address.
 601  * Note that the passed-in value must already be in network byte order.
 602  */
 603 int netxen_niu_macaddr_set(struct netxen_adapter *adapter,
 604                            netxen_ethernet_macaddr_t addr)
 605 {
 606         u8 temp[4];
 607         u32 val;
 608         int phy = adapter->physical_port;
 609         unsigned char mac_addr[6];
 610         int i;
 611
 612         if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
 613                 return 0;
 614
 615         for (i = 0; i < 10; i++) {
 616                 temp[0] = temp[1] = 0;
 617                 memcpy(temp + 2, addr, 2);
 618                 val = le32_to_cpu(*(__le32 *)temp);
 619                 if (adapter->hw_write_wx(adapter,
 620                                 NETXEN_NIU_GB_STATION_ADDR_1(phy), &val, 4))
 621                         return -EIO;
 622
 623                 memcpy(temp, ((u8 *) addr) + 2, sizeof(__le32));
 624                 val = le32_to_cpu(*(__le32 *)temp);
 625                 if (adapter->hw_write_wx(adapter,
 626                                 NETXEN_NIU_GB_STATION_ADDR_0(phy), &val, 4))
 627                         return -2;
 628
 629                 netxen_niu_macaddr_get(adapter,
 630                                        (netxen_ethernet_macaddr_t *) mac_addr);
 631                 if (memcmp(mac_addr, addr, 6) == 0)
 632                         break;
 633         }
 634
 635         if (i == 10) {
 636                 printk(KERN_ERR "%s: cannot set Mac addr for %s\n",
 637                        netxen_nic_driver_name, adapter->netdev->name);
 638                 printk(KERN_ERR "MAC address set: %pM.\n", addr);
 639                 printk(KERN_ERR "MAC address get: %pM.\n", mac_addr);
 640         }
 641         return 0;
 642 }
 643
 644 #if 0
 645 /* Enable a GbE interface */
 646 int netxen_niu_enable_gbe_port(struct netxen_adapter *adapter,
 647                                int port, netxen_niu_gbe_ifmode_t mode)
 648 {
 649         __u32 mac_cfg0;
 650         __u32 mac_cfg1;
 651         __u32 mii_cfg;
 652
 653         if ((port < 0) || (port > NETXEN_NIU_MAX_GBE_PORTS))
 654                 return -EINVAL;
 655
 656         mac_cfg0 = 0;
 657         netxen_gb_soft_reset(mac_cfg0);
 658         if (adapter->hw_write_wx(adapter, NETXEN_NIU_GB_MAC_CONFIG_0(port),
 659                                    &mac_cfg0, 4))
 660                 return -EIO;
 661         mac_cfg0 = 0;
 662         netxen_gb_enable_tx(mac_cfg0);
 663         netxen_gb_enable_rx(mac_cfg0);
 664         netxen_gb_unset_rx_flowctl(mac_cfg0);
 665         netxen_gb_tx_reset_pb(mac_cfg0);
 666         netxen_gb_rx_reset_pb(mac_cfg0);
 667         netxen_gb_tx_reset_mac(mac_cfg0);
 668         netxen_gb_rx_reset_mac(mac_cfg0);
 669
 670         if (adapter->hw_write_wx(adapter, NETXEN_NIU_GB_MAC_CONFIG_0(port),
 671                                    &mac_cfg0, 4))
 672                 return -EIO;
 673         mac_cfg1 = 0;
 674         netxen_gb_set_preamblelen(mac_cfg1, 0xf);
 675         netxen_gb_set_duplex(mac_cfg1);
 676         netxen_gb_set_crc_enable(mac_cfg1);
 677         netxen_gb_set_padshort(mac_cfg1);
 678         netxen_gb_set_checklength(mac_cfg1);
 679         netxen_gb_set_hugeframes(mac_cfg1);
 680
 681         if (mode == NETXEN_NIU_10_100_MB) {
 682                 netxen_gb_set_intfmode(mac_cfg1, 1);
 683                 if (adapter->hw_write_wx(adapter,
 684                                            NETXEN_NIU_GB_MAC_CONFIG_1(port),
 685                                            &mac_cfg1, 4))
 686                         return -EIO;
 687
 688                 /* set mii mode */
 689                 netxen_crb_writelit_adapter(adapter, NETXEN_NIU_GB0_GMII_MODE +
 690                                             (port << 3), 0);
 691                 netxen_crb_writelit_adapter(adapter, NETXEN_NIU_GB0_MII_MODE +
 692                                             (port << 3), 1);
 693
 694         } else if (mode == NETXEN_NIU_1000_MB) {
 695                 netxen_gb_set_intfmode(mac_cfg1, 2);
 696                 if (adapter->hw_write_wx(adapter,
 697                                            NETXEN_NIU_GB_MAC_CONFIG_1(port),
 698                                            &mac_cfg1, 4))
 699                         return -EIO;
 700                 /* set gmii mode */
 701                 netxen_crb_writelit_adapter(adapter, NETXEN_NIU_GB0_MII_MODE +
 702                                             (port << 3), 0);
 703                 netxen_crb_writelit_adapter(adapter, NETXEN_NIU_GB0_GMII_MODE +
 704                                             (port << 3), 1);
 705         }
 706         mii_cfg = 0;
 707         netxen_gb_set_mii_mgmt_clockselect(mii_cfg, 7);
 708         if (adapter->hw_write_wx(adapter, NETXEN_NIU_GB_MII_MGMT_CONFIG(port),
 709                                    &mii_cfg, 4))
 710                 return -EIO;
 711         mac_cfg0 = 0;
 712         netxen_gb_enable_tx(mac_cfg0);
 713         netxen_gb_enable_rx(mac_cfg0);
 714         netxen_gb_unset_rx_flowctl(mac_cfg0);
 715         netxen_gb_unset_tx_flowctl(mac_cfg0);
 716
 717         if (adapter->hw_write_wx(adapter, NETXEN_NIU_GB_MAC_CONFIG_0(port),
 718                                    &mac_cfg0, 4))
 719                 return -EIO;
 720         return 0;
 721 }
 722 #endif  /*  0  */
 723
 724 /* Disable a GbE interface */
 725 int netxen_niu_disable_gbe_port(struct netxen_adapter *adapter)
 726 {
 727         __u32 mac_cfg0;
 728         u32 port = adapter->physical_port;
 729
 730         if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
 731                 return 0;
 732
 733         if (port > NETXEN_NIU_MAX_GBE_PORTS)
 734                 return -EINVAL;
 735         mac_cfg0 = 0;
 736         netxen_gb_soft_reset(mac_cfg0);
 737         if (adapter->hw_write_wx(adapter, NETXEN_NIU_GB_MAC_CONFIG_0(port),
 738                                    &mac_cfg0, 4))
 739                 return -EIO;
 740         return 0;
 741 }
 742
 743 /* Disable an XG interface */
 744 int netxen_niu_disable_xg_port(struct netxen_adapter *adapter)
 745 {
 746         __u32 mac_cfg;
 747         u32 port = adapter->physical_port;
 748
 749         if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
 750                 return 0;
 751
 752         if (port > NETXEN_NIU_MAX_XG_PORTS)
 753                 return -EINVAL;
 754
 755         mac_cfg = 0;
 756         if (adapter->hw_write_wx(adapter,
 757                 NETXEN_NIU_XGE_CONFIG_0 + (0x10000 * port), &mac_cfg, 4))
 758                 return -EIO;
 759         return 0;
 760 }
 761
 762 /* Set promiscuous mode for a GbE interface */
 763 int netxen_niu_set_promiscuous_mode(struct netxen_adapter *adapter,
 764                 u32 mode)
 765 {
 766         __u32 reg;
 767         u32 port = adapter->physical_port;
 768
 769         if (port > NETXEN_NIU_MAX_GBE_PORTS)
 770                 return -EINVAL;
 771
 772         /* save previous contents */
 773         if (adapter->hw_read_wx(adapter, NETXEN_NIU_GB_DROP_WRONGADDR,
 774                                   &reg, 4))
 775                 return -EIO;
 776         if (mode == NETXEN_NIU_PROMISC_MODE) {
 777                 switch (port) {
 778                 case 0:
 779                         netxen_clear_gb_drop_gb0(reg);
 780                         break;
 781                 case 1:
 782                         netxen_clear_gb_drop_gb1(reg);
 783                         break;
 784                 case 2:
 785                         netxen_clear_gb_drop_gb2(reg);
 786                         break;
 787                 case 3:
 788                         netxen_clear_gb_drop_gb3(reg);
 789                         break;
 790                 default:
 791                         return -EIO;
 792                 }
 793         } else {
 794                 switch (port) {
 795                 case 0:
 796                         netxen_set_gb_drop_gb0(reg);
 797                         break;
 798                 case 1:
 799                         netxen_set_gb_drop_gb1(reg);
 800                         break;
 801                 case 2:
 802                         netxen_set_gb_drop_gb2(reg);
 803                         break;
 804                 case 3:
 805                         netxen_set_gb_drop_gb3(reg);
 806                         break;
 807                 default:
 808                         return -EIO;
 809                 }
 810         }
 811         if (adapter->hw_write_wx(adapter, NETXEN_NIU_GB_DROP_WRONGADDR,
 812                                    &reg, 4))
 813                 return -EIO;
 814         return 0;
 815 }
 816
 817 /*
 818  * Set the MAC address for an XG port
 819  * Note that the passed-in value must already be in network byte order.
 820  */
 821 int netxen_niu_xg_macaddr_set(struct netxen_adapter *adapter,
 822                               netxen_ethernet_macaddr_t addr)
 823 {
 824         int phy = adapter->physical_port;
 825         u8 temp[4];
 826         u32 val;
 827
 828         if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
 829                 return 0;
 830
 831         if ((phy < 0) || (phy > NETXEN_NIU_MAX_XG_PORTS))
 832                 return -EIO;
 833
 834         temp[0] = temp[1] = 0;
 835         switch (phy) {
 836         case 0:
 837             memcpy(temp + 2, addr, 2);
 838             val = le32_to_cpu(*(__le32 *)temp);
 839             if (adapter->hw_write_wx(adapter, NETXEN_NIU_XGE_STATION_ADDR_0_1,
 840                                 &val, 4))
 841                 return -EIO;
 842
 843             memcpy(&temp, ((u8 *) addr) + 2, sizeof(__le32));
 844             val = le32_to_cpu(*(__le32 *)temp);
 845             if (adapter->hw_write_wx(adapter, NETXEN_NIU_XGE_STATION_ADDR_0_HI,
 846                                 &val, 4))
 847                 return -EIO;
 848             break;
 849
 850         case 1:
 851             memcpy(temp + 2, addr, 2);
 852             val = le32_to_cpu(*(__le32 *)temp);
 853             if (adapter->hw_write_wx(adapter, NETXEN_NIU_XG1_STATION_ADDR_0_1,
 854                                 &val, 4))
 855                 return -EIO;
 856
 857             memcpy(&temp, ((u8 *) addr) + 2, sizeof(__le32));
 858             val = le32_to_cpu(*(__le32 *)temp);
 859             if (adapter->hw_write_wx(adapter, NETXEN_NIU_XG1_STATION_ADDR_0_HI,
 860                                 &val, 4))
 861                 return -EIO;
 862             break;
 863
 864         default:
 865             printk(KERN_ERR "Unknown port %d\n", phy);
 866             break;
 867         }
 868
 869         return 0;
 870 }
 871
 872 #if 0
 873 /*
 874  * Return the current station MAC address.
 875  * Note that the passed-in value must already be in network byte order.
 876  */
 877 int netxen_niu_xg_macaddr_get(struct netxen_adapter *adapter,
 878                               netxen_ethernet_macaddr_t * addr)
 879 {
 880         int phy = adapter->physical_port;
 881         u32 stationhigh;
 882         u32 stationlow;
 883         u8 val[8];
 884
 885         if (addr == NULL)
 886                 return -EINVAL;
 887         if (phy != 0)
 888                 return -EINVAL;
 889
 890         if (adapter->hw_read_wx(adapter, NETXEN_NIU_XGE_STATION_ADDR_0_HI,
 891                                   &stationhigh, 4))
 892                 return -EIO;
 893         if (adapter->hw_read_wx(adapter, NETXEN_NIU_XGE_STATION_ADDR_0_1,
 894                                   &stationlow, 4))
 895                 return -EIO;
 896         ((__le32 *)val)[1] = cpu_to_le32(stationhigh);
 897         ((__le32 *)val)[0] = cpu_to_le32(stationlow);
 898
 899         memcpy(addr, val + 2, 6);
 900
 901         return 0;
 902 }
 903 #endif  /*  0  */
 904
 905 int netxen_niu_xg_set_promiscuous_mode(struct netxen_adapter *adapter,
 906                 u32 mode)
 907 {
 908         __u32 reg;
 909         u32 port = adapter->physical_port;
 910
 911         if (port > NETXEN_NIU_MAX_XG_PORTS)
 912                 return -EINVAL;
 913
 914         if (adapter->hw_read_wx(adapter,
 915                 NETXEN_NIU_XGE_CONFIG_1 + (0x10000 * port), &reg, 4))
 916                         return -EIO;
 917         if (mode == NETXEN_NIU_PROMISC_MODE)
 918                 reg = (reg | 0x2000UL);
 919         else
 920                 reg = (reg & ~0x2000UL);
 921
 922         if (mode == NETXEN_NIU_ALLMULTI_MODE)
 923                 reg = (reg | 0x1000UL);
 924         else
 925                 reg = (reg & ~0x1000UL);
 926
 927         netxen_crb_writelit_adapter(adapter,
 928                 NETXEN_NIU_XGE_CONFIG_1 + (0x10000 * port), reg);
 929
 930         return 0;
 931 }