jme.c

   1 /*
   2  * JMicron JMC2x0 series PCIe Ethernet Linux Device Driver
   3  *
   4  * Copyright 2008 JMicron Technology Corporation
   5  * http://www.jmicron.com/
   6  *
   7  * Author: Guo-Fu Tseng <cooldavid@cooldavid.org>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21  *
  22  */
  23
  24 #include <linux/module.h>
  25 #include <linux/kernel.h>
  26 #include <linux/pci.h>
  27 #include <linux/netdevice.h>
  28 #include <linux/etherdevice.h>
  29 #include <linux/ethtool.h>
  30 #include <linux/mii.h>
  31 #include <linux/crc32.h>
  32 #include <linux/delay.h>
  33 #include <linux/spinlock.h>
  34 #include <linux/in.h>
  35 #include <linux/ip.h>
  36 #include <linux/ipv6.h>
  37 #include <linux/tcp.h>
  38 #include <linux/udp.h>
  39 #include <linux/if_vlan.h>
  40 #include <net/ip6_checksum.h>
  41 #include "jme.h"
  42
  43 static int force_pseudohp = -1;
  44 static int no_pseudohp = -1;
  45 static int no_extplug = -1;
  46 module_param(force_pseudohp, int, 0);
  47 MODULE_PARM_DESC(force_pseudohp,
  48         "Enable pseudo hot-plug feature manually by driver instead of BIOS.");
  49 module_param(no_pseudohp, int, 0);
  50 MODULE_PARM_DESC(no_pseudohp, "Disable pseudo hot-plug feature.");
  51 module_param(no_extplug, int, 0);
  52 MODULE_PARM_DESC(no_extplug,
  53         "Do not use external plug signal for pseudo hot-plug.");
  54
  55 static int
  56 jme_mdio_read(struct net_device *netdev, int phy, int reg)
  57 {
  58         struct jme_adapter *jme = netdev_priv(netdev);
  59         int i, val, again = (reg == MII_BMSR) ? 1 : 0;
  60
  61 read_again:
  62         jwrite32(jme, JME_SMI, SMI_OP_REQ |
  63                                 smi_phy_addr(phy) |
  64                                 smi_reg_addr(reg));
  65
  66         wmb();
  67         for (i = JME_PHY_TIMEOUT * 50 ; i > 0 ; --i) {
  68                 udelay(20);
  69                 val = jread32(jme, JME_SMI);
  70                 if ((val & SMI_OP_REQ) == 0)
  71                         break;
  72         }
  73
  74         if (i == 0) {
  75                 jeprintk(jme->pdev, "phy(%d) read timeout : %d\n", phy, reg);
  76                 return 0;
  77         }
  78
  79         if (again--)
  80                 goto read_again;
  81
  82         return (val & SMI_DATA_MASK) >> SMI_DATA_SHIFT;
  83 }
  84
  85 static void
  86 jme_mdio_write(struct net_device *netdev,
  87                                 int phy, int reg, int val)
  88 {
  89         struct jme_adapter *jme = netdev_priv(netdev);
  90         int i;
  91
  92         jwrite32(jme, JME_SMI, SMI_OP_WRITE | SMI_OP_REQ |
  93                 ((val << SMI_DATA_SHIFT) & SMI_DATA_MASK) |
  94                 smi_phy_addr(phy) | smi_reg_addr(reg));
  95
  96         wmb();
  97         for (i = JME_PHY_TIMEOUT * 50 ; i > 0 ; --i) {
  98                 udelay(20);
  99                 if ((jread32(jme, JME_SMI) & SMI_OP_REQ) == 0)
 100                         break;
 101         }
 102
 103         if (i == 0)
 104                 jeprintk(jme->pdev, "phy(%d) write timeout : %d\n", phy, reg);
 105
 106         return;
 107 }
 108
 109 static inline void
 110 jme_reset_phy_processor(struct jme_adapter *jme)
 111 {
 112         u32 val;
 113
 114         jme_mdio_write(jme->dev,
 115                         jme->mii_if.phy_id,
 116                         MII_ADVERTISE, ADVERTISE_ALL |
 117                         ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM);
 118
 119         if (jme->pdev->device == PCI_DEVICE_ID_JMICRON_JMC250)
 120                 jme_mdio_write(jme->dev,
 121                                 jme->mii_if.phy_id,
 122                                 MII_CTRL1000,
 123                                 ADVERTISE_1000FULL | ADVERTISE_1000HALF);
 124
 125         val = jme_mdio_read(jme->dev,
 126                                 jme->mii_if.phy_id,
 127                                 MII_BMCR);
 128
 129         jme_mdio_write(jme->dev,
 130                         jme->mii_if.phy_id,
 131                         MII_BMCR, val | BMCR_RESET);
 132
 133         return;
 134 }
 135
 136 static void
 137 jme_setup_wakeup_frame(struct jme_adapter *jme,
 138                 u32 *mask, u32 crc, int fnr)
 139 {
 140         int i;
 141
 142         /*
 143          * Setup CRC pattern
 144          */
 145         jwrite32(jme, JME_WFOI, WFOI_CRC_SEL | (fnr & WFOI_FRAME_SEL));
 146         wmb();
 147         jwrite32(jme, JME_WFODP, crc);
 148         wmb();
 149
 150         /*
 151          * Setup Mask
 152          */
 153         for (i = 0 ; i < WAKEUP_FRAME_MASK_DWNR ; ++i) {
 154                 jwrite32(jme, JME_WFOI,
 155                                 ((i << WFOI_MASK_SHIFT) & WFOI_MASK_SEL) |
 156                                 (fnr & WFOI_FRAME_SEL));
 157                 wmb();
 158                 jwrite32(jme, JME_WFODP, mask[i]);
 159                 wmb();
 160         }
 161 }
 162
 163 static inline void
 164 jme_reset_mac_processor(struct jme_adapter *jme)
 165 {
 166         u32 mask[WAKEUP_FRAME_MASK_DWNR] = {0, 0, 0, 0};
 167         u32 crc = 0xCDCDCDCD;
 168         u32 gpreg0;
 169         int i;
 170
 171         jwrite32(jme, JME_GHC, jme->reg_ghc | GHC_SWRST);
 172         udelay(2);
 173         jwrite32(jme, JME_GHC, jme->reg_ghc);
 174
 175         jwrite32(jme, JME_RXDBA_LO, 0x00000000);
 176         jwrite32(jme, JME_RXDBA_HI, 0x00000000);
 177         jwrite32(jme, JME_RXQDC, 0x00000000);
 178         jwrite32(jme, JME_RXNDA, 0x00000000);
 179         jwrite32(jme, JME_TXDBA_LO, 0x00000000);
 180         jwrite32(jme, JME_TXDBA_HI, 0x00000000);
 181         jwrite32(jme, JME_TXQDC, 0x00000000);
 182         jwrite32(jme, JME_TXNDA, 0x00000000);
 183
 184         jwrite32(jme, JME_RXMCHT_LO, 0x00000000);
 185         jwrite32(jme, JME_RXMCHT_HI, 0x00000000);
 186         for (i = 0 ; i < WAKEUP_FRAME_NR ; ++i)
 187                 jme_setup_wakeup_frame(jme, mask, crc, i);
 188         if (jme->fpgaver)
 189                 gpreg0 = GPREG0_DEFAULT | GPREG0_LNKINTPOLL;
 190         else
 191                 gpreg0 = GPREG0_DEFAULT;
 192         jwrite32(jme, JME_GPREG0, gpreg0);
 193         jwrite32(jme, JME_GPREG1, GPREG1_DEFAULT);
 194 }
 195
 196 static inline void
 197 jme_reset_ghc_speed(struct jme_adapter *jme)
 198 {
 199         jme->reg_ghc &= ~(GHC_SPEED_1000M | GHC_DPX);
 200         jwrite32(jme, JME_GHC, jme->reg_ghc);
 201 }
 202
 203 static inline void
 204 jme_clear_pm(struct jme_adapter *jme)
 205 {
 206         jwrite32(jme, JME_PMCS, 0xFFFF0000 | jme->reg_pmcs);
 207         pci_set_power_state(jme->pdev, PCI_D0);
 208         pci_enable_wake(jme->pdev, PCI_D0, false);
 209 }
 210
 211 static int
 212 jme_reload_eeprom(struct jme_adapter *jme)
 213 {
 214         u32 val;
 215         int i;
 216
 217         val = jread32(jme, JME_SMBCSR);
 218
 219         if (val & SMBCSR_EEPROMD) {
 220                 val |= SMBCSR_CNACK;
 221                 jwrite32(jme, JME_SMBCSR, val);
 222                 val |= SMBCSR_RELOAD;
 223                 jwrite32(jme, JME_SMBCSR, val);
 224                 mdelay(12);
 225
 226                 for (i = JME_EEPROM_RELOAD_TIMEOUT; i > 0; --i) {
 227                         mdelay(1);
 228                         if ((jread32(jme, JME_SMBCSR) & SMBCSR_RELOAD) == 0)
 229                                 break;
 230                 }
 231
 232                 if (i == 0) {
 233                         jeprintk(jme->pdev, "eeprom reload timeout\n");
 234                         return -EIO;
 235                 }
 236         }
 237
 238         return 0;
 239 }
 240
 241 static void
 242 jme_load_macaddr(struct net_device *netdev)
 243 {
 244         struct jme_adapter *jme = netdev_priv(netdev);
 245         unsigned char macaddr[6];
 246         u32 val;
 247
 248         spin_lock_bh(&jme->macaddr_lock);
 249         val = jread32(jme, JME_RXUMA_LO);
 250         macaddr[0] = (val >>  0) & 0xFF;
 251         macaddr[1] = (val >>  8) & 0xFF;
 252         macaddr[2] = (val >> 16) & 0xFF;
 253         macaddr[3] = (val >> 24) & 0xFF;
 254         val = jread32(jme, JME_RXUMA_HI);
 255         macaddr[4] = (val >>  0) & 0xFF;
 256         macaddr[5] = (val >>  8) & 0xFF;
 257         memcpy(netdev->dev_addr, macaddr, 6);
 258         spin_unlock_bh(&jme->macaddr_lock);
 259 }
 260
 261 static inline void
 262 jme_set_rx_pcc(struct jme_adapter *jme, int p)
 263 {
 264         switch (p) {
 265         case PCC_OFF:
 266                 jwrite32(jme, JME_PCCRX0,
 267                         ((PCC_OFF_TO << PCCRXTO_SHIFT) & PCCRXTO_MASK) |
 268                         ((PCC_OFF_CNT << PCCRX_SHIFT) & PCCRX_MASK));
 269                 break;
 270         case PCC_P1:
 271                 jwrite32(jme, JME_PCCRX0,
 272                         ((PCC_P1_TO << PCCRXTO_SHIFT) & PCCRXTO_MASK) |
 273                         ((PCC_P1_CNT << PCCRX_SHIFT) & PCCRX_MASK));
 274                 break;
 275         case PCC_P2:
 276                 jwrite32(jme, JME_PCCRX0,
 277                         ((PCC_P2_TO << PCCRXTO_SHIFT) & PCCRXTO_MASK) |
 278                         ((PCC_P2_CNT << PCCRX_SHIFT) & PCCRX_MASK));
 279                 break;
 280         case PCC_P3:
 281                 jwrite32(jme, JME_PCCRX0,
 282                         ((PCC_P3_TO << PCCRXTO_SHIFT) & PCCRXTO_MASK) |
 283                         ((PCC_P3_CNT << PCCRX_SHIFT) & PCCRX_MASK));
 284                 break;
 285         default:
 286                 break;
 287         }
 288         wmb();
 289
 290         if (!(test_bit(JME_FLAG_POLL, &jme->flags)))
 291 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,33)
 292                 msg_rx_status(jme, "Switched to PCC_P%d\n", p);
 293 #else
 294                 netif_info(jme, rx_status, jme->dev, "Switched to PCC_P%d\n", p);
 295 #endif
 296 }
 297
 298 static void
 299 jme_start_irq(struct jme_adapter *jme)
 300 {
 301         register struct dynpcc_info *dpi = &(jme->dpi);
 302
 303         jme_set_rx_pcc(jme, PCC_P1);
 304         dpi->cur                = PCC_P1;
 305         dpi->attempt            = PCC_P1;
 306         dpi->cnt                = 0;
 307
 308         jwrite32(jme, JME_PCCTX,
 309                         ((PCC_TX_TO << PCCTXTO_SHIFT) & PCCTXTO_MASK) |
 310                         ((PCC_TX_CNT << PCCTX_SHIFT) & PCCTX_MASK) |
 311                         PCCTXQ0_EN
 312                 );
 313
 314         /*
 315          * Enable Interrupts
 316          */
 317         jwrite32(jme, JME_IENS, INTR_ENABLE);
 318 }
 319
 320 static inline void
 321 jme_stop_irq(struct jme_adapter *jme)
 322 {
 323         /*
 324          * Disable Interrupts
 325          */
 326         jwrite32f(jme, JME_IENC, INTR_ENABLE);
 327 }
 328
 329 static u32
 330 jme_linkstat_from_phy(struct jme_adapter *jme)
 331 {
 332         u32 phylink, bmsr;
 333
 334         phylink = jme_mdio_read(jme->dev, jme->mii_if.phy_id, 17);
 335         bmsr = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_BMSR);
 336         if (bmsr & BMSR_ANCOMP)
 337                 phylink |= PHY_LINK_AUTONEG_COMPLETE;
 338
 339         return phylink;
 340 }
 341
 342 static inline void
 343 jme_set_phyfifoa(struct jme_adapter *jme)
 344 {
 345         jme_mdio_write(jme->dev, jme->mii_if.phy_id, 27, 0x0004);
 346 }
 347
 348 static inline void
 349 jme_set_phyfifob(struct jme_adapter *jme)
 350 {
 351         jme_mdio_write(jme->dev, jme->mii_if.phy_id, 27, 0x0000);
 352 }
 353
 354 static int
 355 jme_check_link(struct net_device *netdev, int testonly)
 356 {
 357         struct jme_adapter *jme = netdev_priv(netdev);
 358         u32 phylink, ghc, cnt = JME_SPDRSV_TIMEOUT, bmcr, gpreg1;
 359         char linkmsg[64];
 360         int rc = 0;
 361
 362         linkmsg[0] = '\0';
 363
 364         if (jme->fpgaver)
 365                 phylink = jme_linkstat_from_phy(jme);
 366         else
 367                 phylink = jread32(jme, JME_PHY_LINK);
 368
 369         if (phylink & PHY_LINK_UP) {
 370                 if (!(phylink & PHY_LINK_AUTONEG_COMPLETE)) {
 371                         /*
 372                          * If we did not enable AN
 373                          * Speed/Duplex Info should be obtained from SMI
 374                          */
 375                         phylink = PHY_LINK_UP;
 376
 377                         bmcr = jme_mdio_read(jme->dev,
 378                                                 jme->mii_if.phy_id,
 379                                                 MII_BMCR);
 380
 381                         phylink |= ((bmcr & BMCR_SPEED1000) &&
 382                                         (bmcr & BMCR_SPEED100) == 0) ?
 383                                         PHY_LINK_SPEED_1000M :
 384                                         (bmcr & BMCR_SPEED100) ?
 385                                         PHY_LINK_SPEED_100M :
 386                                         PHY_LINK_SPEED_10M;
 387
 388                         phylink |= (bmcr & BMCR_FULLDPLX) ?
 389                                          PHY_LINK_DUPLEX : 0;
 390
 391                         strcat(linkmsg, "Forced: ");
 392                 } else {
 393                         /*
 394                          * Keep polling for speed/duplex resolve complete
 395                          */
 396                         while (!(phylink & PHY_LINK_SPEEDDPU_RESOLVED) &&
 397                                 --cnt) {
 398
 399                                 udelay(1);
 400
 401                                 if (jme->fpgaver)
 402                                         phylink = jme_linkstat_from_phy(jme);
 403                                 else
 404                                         phylink = jread32(jme, JME_PHY_LINK);
 405                         }
 406                         if (!cnt)
 407                                 jeprintk(jme->pdev,
 408                                         "Waiting speed resolve timeout.\n");
 409
 410                         strcat(linkmsg, "ANed: ");
 411                 }
 412
 413                 if (jme->phylink == phylink) {
 414                         rc = 1;
 415                         goto out;
 416                 }
 417                 if (testonly)
 418                         goto out;
 419
 420                 jme->phylink = phylink;
 421
 422                 ghc = jme->reg_ghc & ~(GHC_SPEED | GHC_DPX |
 423                                 GHC_TO_CLK_PCIE | GHC_TXMAC_CLK_PCIE |
 424                                 GHC_TO_CLK_GPHY | GHC_TXMAC_CLK_GPHY);
 425                 switch (phylink & PHY_LINK_SPEED_MASK) {
 426                 case PHY_LINK_SPEED_10M:
 427                         ghc |= GHC_SPEED_10M |
 428                                 GHC_TO_CLK_PCIE | GHC_TXMAC_CLK_PCIE;
 429                         strcat(linkmsg, "10 Mbps, ");
 430                         break;
 431                 case PHY_LINK_SPEED_100M:
 432                         ghc |= GHC_SPEED_100M |
 433                                 GHC_TO_CLK_PCIE | GHC_TXMAC_CLK_PCIE;
 434                         strcat(linkmsg, "100 Mbps, ");
 435                         break;
 436                 case PHY_LINK_SPEED_1000M:
 437                         ghc |= GHC_SPEED_1000M |
 438                                 GHC_TO_CLK_GPHY | GHC_TXMAC_CLK_GPHY;
 439                         strcat(linkmsg, "1000 Mbps, ");
 440                         break;
 441                 default:
 442                         break;
 443                 }
 444
 445                 if (phylink & PHY_LINK_DUPLEX) {
 446                         jwrite32(jme, JME_TXMCS, TXMCS_DEFAULT);
 447                         ghc |= GHC_DPX;
 448                 } else {
 449                         jwrite32(jme, JME_TXMCS, TXMCS_DEFAULT |
 450                                                 TXMCS_BACKOFF |
 451                                                 TXMCS_CARRIERSENSE |
 452                                                 TXMCS_COLLISION);
 453                         jwrite32(jme, JME_TXTRHD, TXTRHD_TXPEN |
 454                                 ((0x2000 << TXTRHD_TXP_SHIFT) & TXTRHD_TXP) |
 455                                 TXTRHD_TXREN |
 456                                 ((8 << TXTRHD_TXRL_SHIFT) & TXTRHD_TXRL));
 457                 }
 458
 459                 gpreg1 = GPREG1_DEFAULT;
 460                 if (is_buggy250(jme->pdev->device, jme->chiprev)) {
 461                         if (!(phylink & PHY_LINK_DUPLEX))
 462                                 gpreg1 |= GPREG1_HALFMODEPATCH;
 463                         switch (phylink & PHY_LINK_SPEED_MASK) {
 464                         case PHY_LINK_SPEED_10M:
 465                                 jme_set_phyfifoa(jme);
 466                                 gpreg1 |= GPREG1_RSSPATCH;
 467                                 break;
 468                         case PHY_LINK_SPEED_100M:
 469                                 jme_set_phyfifob(jme);
 470                                 gpreg1 |= GPREG1_RSSPATCH;
 471                                 break;
 472                         case PHY_LINK_SPEED_1000M:
 473                                 jme_set_phyfifoa(jme);
 474                                 break;
 475                         default:
 476                                 break;
 477                         }
 478                 }
 479
 480                 jwrite32(jme, JME_GPREG1, gpreg1);
 481                 jwrite32(jme, JME_GHC, ghc);
 482                 jme->reg_ghc = ghc;
 483
 484                 strcat(linkmsg, (phylink & PHY_LINK_DUPLEX) ?
 485                                         "Full-Duplex, " :
 486                                         "Half-Duplex, ");
 487                 strcat(linkmsg, (phylink & PHY_LINK_MDI_STAT) ?
 488                                         "MDI-X" :
 489                                         "MDI");
 490 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,33)
 491                 msg_link(jme, "Link is up at %s.\n", linkmsg);
 492 #else
 493                 netif_info(jme, link, jme->dev, "Link is up at %s.\n", linkmsg);
 494 #endif
 495                 netif_carrier_on(netdev);
 496         } else {
 497                 if (testonly)
 498                         goto out;
 499
 500 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,33)
 501                 msg_link(jme, "Link is down.\n");
 502 #else
 503                 netif_info(jme, link, jme->dev, "Link is down.\n");
 504 #endif
 505                 jme->phylink = 0;
 506                 netif_carrier_off(netdev);
 507         }
 508
 509 out:
 510         return rc;
 511 }
 512
 513 static int
 514 jme_setup_tx_resources(struct jme_adapter *jme)
 515 {
 516         struct jme_ring *txring = &(jme->txring[0]);
 517
 518         txring->alloc = dma_alloc_coherent(&(jme->pdev->dev),
 519                                    TX_RING_ALLOC_SIZE(jme->tx_ring_size),
 520                                    &(txring->dmaalloc),
 521                                    GFP_ATOMIC);
 522
 523         if (!txring->alloc)
 524                 goto err_set_null;
 525
 526         /*
 527          * 16 Bytes align
 528          */
 529         txring->desc            = (void *)ALIGN((unsigned long)(txring->alloc),
 530                                                 RING_DESC_ALIGN);
 531         txring->dma             = ALIGN(txring->dmaalloc, RING_DESC_ALIGN);
 532         txring->next_to_use     = 0;
 533         atomic_set(&txring->next_to_clean, 0);
 534         atomic_set(&txring->nr_free, jme->tx_ring_size);
 535
 536         txring->bufinf          = kmalloc(sizeof(struct jme_buffer_info) *
 537                                         jme->tx_ring_size, GFP_ATOMIC);
 538         if (unlikely(!(txring->bufinf)))
 539                 goto err_free_txring;
 540
 541         /*
 542          * Initialize Transmit Descriptors
 543          */
 544         memset(txring->alloc, 0, TX_RING_ALLOC_SIZE(jme->tx_ring_size));
 545         memset(txring->bufinf, 0,
 546                 sizeof(struct jme_buffer_info) * jme->tx_ring_size);
 547
 548         return 0;
 549
 550 err_free_txring:
 551         dma_free_coherent(&(jme->pdev->dev),
 552                           TX_RING_ALLOC_SIZE(jme->tx_ring_size),
 553                           txring->alloc,
 554                           txring->dmaalloc);
 555
 556 err_set_null:
 557         txring->desc = NULL;
 558         txring->dmaalloc = 0;
 559         txring->dma = 0;
 560         txring->bufinf = NULL;
 561
 562         return -ENOMEM;
 563 }
 564
 565 static void
 566 jme_free_tx_resources(struct jme_adapter *jme)
 567 {
 568         int i;
 569         struct jme_ring *txring = &(jme->txring[0]);
 570         struct jme_buffer_info *txbi;
 571
 572         if (txring->alloc) {
 573                 if (txring->bufinf) {
 574                         for (i = 0 ; i < jme->tx_ring_size ; ++i) {
 575                                 txbi = txring->bufinf + i;
 576                                 if (txbi->skb) {
 577                                         dev_kfree_skb(txbi->skb);
 578                                         txbi->skb = NULL;
 579                                 }
 580                                 txbi->mapping           = 0;
 581                                 txbi->len               = 0;
 582                                 txbi->nr_desc           = 0;
 583                                 txbi->start_xmit        = 0;
 584                         }
 585                         kfree(txring->bufinf);
 586                 }
 587
 588                 dma_free_coherent(&(jme->pdev->dev),
 589                                   TX_RING_ALLOC_SIZE(jme->tx_ring_size),
 590                                   txring->alloc,
 591                                   txring->dmaalloc);
 592
 593                 txring->alloc           = NULL;
 594                 txring->desc            = NULL;
 595                 txring->dmaalloc        = 0;
 596                 txring->dma             = 0;
 597                 txring->bufinf          = NULL;
 598         }
 599         txring->next_to_use     = 0;
 600         atomic_set(&txring->next_to_clean, 0);
 601         atomic_set(&txring->nr_free, 0);
 602 }
 603
 604 static inline void
 605 jme_enable_tx_engine(struct jme_adapter *jme)
 606 {
 607         /*
 608          * Select Queue 0
 609          */
 610         jwrite32(jme, JME_TXCS, TXCS_DEFAULT | TXCS_SELECT_QUEUE0);
 611         wmb();
 612
 613         /*
 614          * Setup TX Queue 0 DMA Bass Address
 615          */
 616         jwrite32(jme, JME_TXDBA_LO, (__u64)jme->txring[0].dma & 0xFFFFFFFFUL);
 617         jwrite32(jme, JME_TXDBA_HI, (__u64)(jme->txring[0].dma) >> 32);
 618         jwrite32(jme, JME_TXNDA, (__u64)jme->txring[0].dma & 0xFFFFFFFFUL);
 619
 620         /*
 621          * Setup TX Descptor Count
 622          */
 623         jwrite32(jme, JME_TXQDC, jme->tx_ring_size);
 624
 625         /*
 626          * Enable TX Engine
 627          */
 628         wmb();
 629         jwrite32(jme, JME_TXCS, jme->reg_txcs |
 630                                 TXCS_SELECT_QUEUE0 |
 631                                 TXCS_ENABLE);
 632
 633 }
 634
 635 static inline void
 636 jme_restart_tx_engine(struct jme_adapter *jme)
 637 {
 638         /*
 639          * Restart TX Engine
 640          */
 641         jwrite32(jme, JME_TXCS, jme->reg_txcs |
 642                                 TXCS_SELECT_QUEUE0 |
 643                                 TXCS_ENABLE);
 644 }
 645
 646 static inline void
 647 jme_disable_tx_engine(struct jme_adapter *jme)
 648 {
 649         int i;
 650         u32 val;
 651
 652         /*
 653          * Disable TX Engine
 654          */
 655         jwrite32(jme, JME_TXCS, jme->reg_txcs | TXCS_SELECT_QUEUE0);
 656         wmb();
 657
 658         val = jread32(jme, JME_TXCS);
 659         for (i = JME_TX_DISABLE_TIMEOUT ; (val & TXCS_ENABLE) && i > 0 ; --i) {
 660                 mdelay(1);
 661                 val = jread32(jme, JME_TXCS);
 662                 rmb();
 663         }
 664
 665         if (!i)
 666                 jeprintk(jme->pdev, "Disable TX engine timeout.\n");
 667 }
 668
 669 static void
 670 jme_set_clean_rxdesc(struct jme_adapter *jme, int i)
 671 {
 672         struct jme_ring *rxring = &(jme->rxring[0]);
 673         register struct rxdesc *rxdesc = rxring->desc;
 674         struct jme_buffer_info *rxbi = rxring->bufinf;
 675         rxdesc += i;
 676         rxbi += i;
 677
 678         rxdesc->dw[0] = 0;
 679         rxdesc->dw[1] = 0;
 680         rxdesc->desc1.bufaddrh  = cpu_to_le32((__u64)rxbi->mapping >> 32);
 681         rxdesc->desc1.bufaddrl  = cpu_to_le32(
 682                                         (__u64)rxbi->mapping & 0xFFFFFFFFUL);
 683         rxdesc->desc1.datalen   = cpu_to_le16(rxbi->len);
 684         if (jme->dev->features & NETIF_F_HIGHDMA)
 685                 rxdesc->desc1.flags = RXFLAG_64BIT;
 686         wmb();
 687         rxdesc->desc1.flags     |= RXFLAG_OWN | RXFLAG_INT;
 688 }
 689
 690 static int
 691 jme_make_new_rx_buf(struct jme_adapter *jme, int i)
 692 {
 693         struct jme_ring *rxring = &(jme->rxring[0]);
 694         struct jme_buffer_info *rxbi = rxring->bufinf + i;
 695         struct sk_buff *skb;
 696
 697         skb = netdev_alloc_skb(jme->dev,
 698                 jme->dev->mtu + RX_EXTRA_LEN);
 699         if (unlikely(!skb))
 700                 return -ENOMEM;
 701 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19)
 702         skb->dev = jme->dev;
 703 #endif
 704
 705         rxbi->skb = skb;
 706         rxbi->len = skb_tailroom(skb);
 707         rxbi->mapping = pci_map_page(jme->pdev,
 708                                         virt_to_page(skb->data),
 709                                         offset_in_page(skb->data),
 710                                         rxbi->len,
 711                                         PCI_DMA_FROMDEVICE);
 712
 713         return 0;
 714 }
 715
 716 static void
 717 jme_free_rx_buf(struct jme_adapter *jme, int i)
 718 {
 719         struct jme_ring *rxring = &(jme->rxring[0]);
 720         struct jme_buffer_info *rxbi = rxring->bufinf;
 721         rxbi += i;
 722
 723         if (rxbi->skb) {
 724                 pci_unmap_page(jme->pdev,
 725                                  rxbi->mapping,
 726                                  rxbi->len,
 727                                  PCI_DMA_FROMDEVICE);
 728                 dev_kfree_skb(rxbi->skb);
 729                 rxbi->skb = NULL;
 730                 rxbi->mapping = 0;
 731                 rxbi->len = 0;
 732         }
 733 }
 734
 735 static void
 736 jme_free_rx_resources(struct jme_adapter *jme)
 737 {
 738         int i;
 739         struct jme_ring *rxring = &(jme->rxring[0]);
 740
 741         if (rxring->alloc) {
 742                 if (rxring->bufinf) {
 743                         for (i = 0 ; i < jme->rx_ring_size ; ++i)
 744                                 jme_free_rx_buf(jme, i);
 745                         kfree(rxring->bufinf);
 746                 }
 747
 748                 dma_free_coherent(&(jme->pdev->dev),
 749                                   RX_RING_ALLOC_SIZE(jme->rx_ring_size),
 750                                   rxring->alloc,
 751                                   rxring->dmaalloc);
 752                 rxring->alloc    = NULL;
 753                 rxring->desc     = NULL;
 754                 rxring->dmaalloc = 0;
 755                 rxring->dma      = 0;
 756                 rxring->bufinf   = NULL;
 757         }
 758         rxring->next_to_use   = 0;
 759         atomic_set(&rxring->next_to_clean, 0);
 760 }
 761
 762 static int
 763 jme_setup_rx_resources(struct jme_adapter *jme)
 764 {
 765         int i;
 766         struct jme_ring *rxring = &(jme->rxring[0]);
 767
 768         rxring->alloc = dma_alloc_coherent(&(jme->pdev->dev),
 769                                    RX_RING_ALLOC_SIZE(jme->rx_ring_size),
 770                                    &(rxring->dmaalloc),
 771                                    GFP_ATOMIC);
 772         if (!rxring->alloc)
 773                 goto err_set_null;
 774
 775         /*
 776          * 16 Bytes align
 777          */
 778         rxring->desc            = (void *)ALIGN((unsigned long)(rxring->alloc),
 779                                                 RING_DESC_ALIGN);
 780         rxring->dma             = ALIGN(rxring->dmaalloc, RING_DESC_ALIGN);
 781         rxring->next_to_use     = 0;
 782         atomic_set(&rxring->next_to_clean, 0);
 783
 784         rxring->bufinf          = kmalloc(sizeof(struct jme_buffer_info) *
 785                                         jme->rx_ring_size, GFP_ATOMIC);
 786         if (unlikely(!(rxring->bufinf)))
 787                 goto err_free_rxring;
 788
 789         /*
 790          * Initiallize Receive Descriptors
 791          */
 792         memset(rxring->bufinf, 0,
 793                 sizeof(struct jme_buffer_info) * jme->rx_ring_size);
 794         for (i = 0 ; i < jme->rx_ring_size ; ++i) {
 795                 if (unlikely(jme_make_new_rx_buf(jme, i))) {
 796                         jme_free_rx_resources(jme);
 797                         return -ENOMEM;
 798                 }
 799
 800                 jme_set_clean_rxdesc(jme, i);
 801         }
 802
 803         return 0;
 804
 805 err_free_rxring:
 806         dma_free_coherent(&(jme->pdev->dev),
 807                           RX_RING_ALLOC_SIZE(jme->rx_ring_size),
 808                           rxring->alloc,
 809                           rxring->dmaalloc);
 810 err_set_null:
 811         rxring->desc = NULL;
 812         rxring->dmaalloc = 0;
 813         rxring->dma = 0;
 814         rxring->bufinf = NULL;
 815
 816         return -ENOMEM;
 817 }
 818
 819 static inline void
 820 jme_enable_rx_engine(struct jme_adapter *jme)
 821 {
 822         /*
 823          * Select Queue 0
 824          */
 825         jwrite32(jme, JME_RXCS, jme->reg_rxcs |
 826                                 RXCS_QUEUESEL_Q0);
 827         wmb();
 828
 829         /*
 830          * Setup RX DMA Bass Address
 831          */
 832         jwrite32(jme, JME_RXDBA_LO, (__u64)(jme->rxring[0].dma) & 0xFFFFFFFFUL);
 833         jwrite32(jme, JME_RXDBA_HI, (__u64)(jme->rxring[0].dma) >> 32);
 834         jwrite32(jme, JME_RXNDA, (__u64)(jme->rxring[0].dma) & 0xFFFFFFFFUL);
 835
 836         /*
 837          * Setup RX Descriptor Count
 838          */
 839         jwrite32(jme, JME_RXQDC, jme->rx_ring_size);
 840
 841         /*
 842          * Setup Unicast Filter
 843          */
 844         jme_set_multi(jme->dev);
 845
 846         /*
 847          * Enable RX Engine
 848          */
 849         wmb();
 850         jwrite32(jme, JME_RXCS, jme->reg_rxcs |
 851                                 RXCS_QUEUESEL_Q0 |
 852                                 RXCS_ENABLE |
 853                                 RXCS_QST);
 854 }
 855
 856 static inline void
 857 jme_restart_rx_engine(struct jme_adapter *jme)
 858 {
 859         /*
 860          * Start RX Engine
 861          */
 862         jwrite32(jme, JME_RXCS, jme->reg_rxcs |
 863                                 RXCS_QUEUESEL_Q0 |
 864                                 RXCS_ENABLE |
 865                                 RXCS_QST);
 866 }
 867
 868 static inline void
 869 jme_disable_rx_engine(struct jme_adapter *jme)
 870 {
 871         int i;
 872         u32 val;
 873
 874         /*
 875          * Disable RX Engine
 876          */
 877         jwrite32(jme, JME_RXCS, jme->reg_rxcs);
 878         wmb();
 879
 880         val = jread32(jme, JME_RXCS);
 881         for (i = JME_RX_DISABLE_TIMEOUT ; (val & RXCS_ENABLE) && i > 0 ; --i) {
 882                 mdelay(1);
 883                 val = jread32(jme, JME_RXCS);
 884                 rmb();
 885         }
 886
 887         if (!i)
 888                 jeprintk(jme->pdev, "Disable RX engine timeout.\n");
 889
 890 }
 891
 892 static int
 893 jme_rxsum_ok(struct jme_adapter *jme, u16 flags)
 894 {
 895         if (!(flags & (RXWBFLAG_TCPON | RXWBFLAG_UDPON | RXWBFLAG_IPV4)))
 896                 return false;
 897
 898         if (unlikely((flags & (RXWBFLAG_MF | RXWBFLAG_TCPON | RXWBFLAG_TCPCS))
 899                         == RXWBFLAG_TCPON)) {
 900                 if (flags & RXWBFLAG_IPV4)
 901 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,33)
 902                         msg_rx_err(jme, "TCP Checksum error\n");
 903 #else
 904                         netif_err(jme, rx_err, jme->dev, "TCP Checksum error\n");
 905 #endif
 906                 return false;
 907         }
 908
 909         if (unlikely((flags & (RXWBFLAG_MF | RXWBFLAG_UDPON | RXWBFLAG_UDPCS))
 910                         == RXWBFLAG_UDPON)) {
 911                 if (flags & RXWBFLAG_IPV4)
 912 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,33)
 913                         msg_rx_err(jme, "UDP Checksum error.\n");
 914 #else
 915                         netif_err(jme, rx_err, jme->dev, "UDP Checksum error.\n");
 916 #endif
 917                 return false;
 918         }
 919
 920         if (unlikely((flags & (RXWBFLAG_IPV4 | RXWBFLAG_IPCS))
 921                         == RXWBFLAG_IPV4)) {
 922 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,33)
 923                 msg_rx_err(jme, "IPv4 Checksum error.\n");
 924 #else
 925                 netif_err(jme, rx_err, jme->dev, "IPv4 Checksum error.\n");
 926 #endif
 927                 return false;
 928         }
 929
 930         return true;
 931 }
 932
 933 static void
 934 jme_alloc_and_feed_skb(struct jme_adapter *jme, int idx)
 935 {
 936         struct jme_ring *rxring = &(jme->rxring[0]);
 937         struct rxdesc *rxdesc = rxring->desc;
 938         struct jme_buffer_info *rxbi = rxring->bufinf;
 939         struct sk_buff *skb;
 940         int framesize;
 941
 942         rxdesc += idx;
 943         rxbi += idx;
 944
 945         skb = rxbi->skb;
 946         pci_dma_sync_single_for_cpu(jme->pdev,
 947                                         rxbi->mapping,
 948                                         rxbi->len,
 949                                         PCI_DMA_FROMDEVICE);
 950
 951         if (unlikely(jme_make_new_rx_buf(jme, idx))) {
 952                 pci_dma_sync_single_for_device(jme->pdev,
 953                                                 rxbi->mapping,
 954                                                 rxbi->len,
 955                                                 PCI_DMA_FROMDEVICE);
 956
 957                 ++(NET_STAT(jme).rx_dropped);
 958         } else {
 959                 framesize = le16_to_cpu(rxdesc->descwb.framesize)
 960                                 - RX_PREPAD_SIZE;
 961
 962                 skb_reserve(skb, RX_PREPAD_SIZE);
 963                 skb_put(skb, framesize);
 964                 skb->protocol = eth_type_trans(skb, jme->dev);
 965
 966                 if (jme_rxsum_ok(jme, le16_to_cpu(rxdesc->descwb.flags)))
 967                         skb->ip_summed = CHECKSUM_UNNECESSARY;
 968                 else
 969                         skb->ip_summed = CHECKSUM_NONE;
 970
 971                 if (rxdesc->descwb.flags & cpu_to_le16(RXWBFLAG_TAGON)) {
 972                         if (jme->vlgrp) {
 973                                 jme->jme_vlan_rx(skb, jme->vlgrp,
 974                                         le16_to_cpu(rxdesc->descwb.vlan));
 975                                 NET_STAT(jme).rx_bytes += 4;
 976                         } else {
 977                                 dev_kfree_skb(skb);
 978                         }
 979                 } else {
 980                         jme->jme_rx(skb);
 981                 }
 982
 983                 if ((rxdesc->descwb.flags & cpu_to_le16(RXWBFLAG_DEST)) ==
 984                     cpu_to_le16(RXWBFLAG_DEST_MUL))
 985                         ++(NET_STAT(jme).multicast);
 986
 987                 NET_STAT(jme).rx_bytes += framesize;
 988                 ++(NET_STAT(jme).rx_packets);
 989         }
 990
 991         jme_set_clean_rxdesc(jme, idx);
 992
 993 }
 994
 995 static int
 996 jme_process_receive(struct jme_adapter *jme, int limit)
 997 {
 998         struct jme_ring *rxring = &(jme->rxring[0]);
 999         struct rxdesc *rxdesc = rxring->desc;
1000         int i, j, ccnt, desccnt, mask = jme->rx_ring_mask;
1001
1002         if (unlikely(!atomic_dec_and_test(&jme->rx_cleaning)))
1003                 goto out_inc;
1004
1005         if (unlikely(atomic_read(&jme->link_changing) != 1))
1006                 goto out_inc;
1007
1008         if (unlikely(!netif_carrier_ok(jme->dev)))
1009                 goto out_inc;
1010
1011         i = atomic_read(&rxring->next_to_clean);
1012         while (limit > 0) {
1013                 rxdesc = rxring->desc;
1014                 rxdesc += i;
1015
1016                 if ((rxdesc->descwb.flags & cpu_to_le16(RXWBFLAG_OWN)) ||
1017                 !(rxdesc->descwb.desccnt & RXWBDCNT_WBCPL))
1018                         goto out;
1019                 --limit;
1020
1021                 desccnt = rxdesc->descwb.desccnt & RXWBDCNT_DCNT;
1022
1023                 if (unlikely(desccnt > 1 ||
1024                 rxdesc->descwb.errstat & RXWBERR_ALLERR)) {
1025
1026                         if (rxdesc->descwb.errstat & RXWBERR_CRCERR)
1027                                 ++(NET_STAT(jme).rx_crc_errors);
1028                         else if (rxdesc->descwb.errstat & RXWBERR_OVERUN)
1029                                 ++(NET_STAT(jme).rx_fifo_errors);
1030                         else
1031                                 ++(NET_STAT(jme).rx_errors);
1032
1033                         if (desccnt > 1)
1034                                 limit -= desccnt - 1;
1035
1036                         for (j = i, ccnt = desccnt ; ccnt-- ; ) {
1037                                 jme_set_clean_rxdesc(jme, j);
1038                                 j = (j + 1) & (mask);
1039                         }
1040
1041                 } else {
1042                         jme_alloc_and_feed_skb(jme, i);
1043                 }
1044
1045                 i = (i + desccnt) & (mask);
1046         }
1047
1048 out:
1049         atomic_set(&rxring->next_to_clean, i);
1050
1051 out_inc:
1052         atomic_inc(&jme->rx_cleaning);
1053
1054         return limit > 0 ? limit : 0;
1055
1056 }
1057
1058 static void
1059 jme_attempt_pcc(struct dynpcc_info *dpi, int atmp)
1060 {
1061         if (likely(atmp == dpi->cur)) {
1062                 dpi->cnt = 0;
1063                 return;
1064         }
1065
1066         if (dpi->attempt == atmp) {
1067                 ++(dpi->cnt);
1068         } else {
1069                 dpi->attempt = atmp;
1070                 dpi->cnt = 0;
1071         }
1072
1073 }
1074
1075 static void
1076 jme_dynamic_pcc(struct jme_adapter *jme)
1077 {
1078         register struct dynpcc_info *dpi = &(jme->dpi);
1079
1080         if ((NET_STAT(jme).rx_bytes - dpi->last_bytes) > PCC_P3_THRESHOLD)
1081                 jme_attempt_pcc(dpi, PCC_P3);
1082         else if ((NET_STAT(jme).rx_packets - dpi->last_pkts) > PCC_P2_THRESHOLD ||
1083                  dpi->intr_cnt > PCC_INTR_THRESHOLD)
1084                 jme_attempt_pcc(dpi, PCC_P2);
1085         else
1086                 jme_attempt_pcc(dpi, PCC_P1);
1087
1088         if (unlikely(dpi->attempt != dpi->cur && dpi->cnt > 5)) {
1089                 if (dpi->attempt < dpi->cur)
1090                         tasklet_schedule(&jme->rxclean_task);
1091                 jme_set_rx_pcc(jme, dpi->attempt);
1092                 dpi->cur = dpi->attempt;
1093                 dpi->cnt = 0;
1094         }
1095 }
1096
1097 static void
1098 jme_start_pcc_timer(struct jme_adapter *jme)
1099 {
1100         struct dynpcc_info *dpi = &(jme->dpi);
1101         dpi->last_bytes         = NET_STAT(jme).rx_bytes;
1102         dpi->last_pkts          = NET_STAT(jme).rx_packets;
1103         dpi->intr_cnt           = 0;
1104         jwrite32(jme, JME_TMCSR,
1105                 TMCSR_EN | ((0xFFFFFF - PCC_INTERVAL_US) & TMCSR_CNT));
1106 }
1107
1108 static inline void
1109 jme_stop_pcc_timer(struct jme_adapter *jme)
1110 {
1111         jwrite32(jme, JME_TMCSR, 0);
1112 }
1113
1114 static void
1115 jme_shutdown_nic(struct jme_adapter *jme)
1116 {
1117         u32 phylink;
1118
1119         phylink = jme_linkstat_from_phy(jme);
1120
1121         if (!(phylink & PHY_LINK_UP)) {
1122                 /*
1123                  * Disable all interrupt before issue timer
1124                  */
1125                 jme_stop_irq(jme);
1126                 jwrite32(jme, JME_TIMER2, TMCSR_EN | 0xFFFFFE);
1127         }
1128 }
1129
1130 static void
1131 jme_pcc_tasklet(unsigned long arg)
1132 {
1133         struct jme_adapter *jme = (struct jme_adapter *)arg;
1134         struct net_device *netdev = jme->dev;
1135
1136         if (unlikely(test_bit(JME_FLAG_SHUTDOWN, &jme->flags))) {
1137                 jme_shutdown_nic(jme);
1138                 return;
1139         }
1140
1141         if (unlikely(!netif_carrier_ok(netdev) ||
1142                 (atomic_read(&jme->link_changing) != 1)
1143         )) {
1144                 jme_stop_pcc_timer(jme);
1145                 return;
1146         }
1147
1148         if (!(test_bit(JME_FLAG_POLL, &jme->flags)))
1149                 jme_dynamic_pcc(jme);
1150
1151         jme_start_pcc_timer(jme);
1152 }
1153
1154 static inline void
1155 jme_polling_mode(struct jme_adapter *jme)
1156 {
1157         jme_set_rx_pcc(jme, PCC_OFF);
1158 }
1159
1160 static inline void
1161 jme_interrupt_mode(struct jme_adapter *jme)
1162 {
1163         jme_set_rx_pcc(jme, PCC_P1);
1164 }
1165
1166 static inline int
1167 jme_pseudo_hotplug_enabled(struct jme_adapter *jme)
1168 {
1169         u32 apmc;
1170         apmc = jread32(jme, JME_APMC);
1171         return apmc & JME_APMC_PSEUDO_HP_EN;
1172 }
1173
1174 static void
1175 jme_start_shutdown_timer(struct jme_adapter *jme)
1176 {
1177         u32 apmc;
1178
1179         apmc = jread32(jme, JME_APMC) | JME_APMC_PCIE_SD_EN;
1180         apmc &= ~JME_APMC_EPIEN_CTRL;
1181         if (!no_extplug) {
1182                 jwrite32f(jme, JME_APMC, apmc | JME_APMC_EPIEN_CTRL_EN);
1183                 wmb();
1184         }
1185         jwrite32f(jme, JME_APMC, apmc);
1186
1187         jwrite32f(jme, JME_TIMER2, 0);
1188         set_bit(JME_FLAG_SHUTDOWN, &jme->flags);
1189         jwrite32(jme, JME_TMCSR,
1190                 TMCSR_EN | ((0xFFFFFF - APMC_PHP_SHUTDOWN_DELAY) & TMCSR_CNT));
1191 }
1192
1193 static void
1194 jme_stop_shutdown_timer(struct jme_adapter *jme)
1195 {
1196         u32 apmc;
1197
1198         jwrite32f(jme, JME_TMCSR, 0);
1199         jwrite32f(jme, JME_TIMER2, 0);
1200         clear_bit(JME_FLAG_SHUTDOWN, &jme->flags);
1201
1202         apmc = jread32(jme, JME_APMC);
1203         apmc &= ~(JME_APMC_PCIE_SD_EN | JME_APMC_EPIEN_CTRL);
1204         jwrite32f(jme, JME_APMC, apmc | JME_APMC_EPIEN_CTRL_DIS);
1205         wmb();
1206         jwrite32f(jme, JME_APMC, apmc);
1207 }
1208
1209 static void
1210 jme_link_change_tasklet(unsigned long arg)
1211 {
1212         struct jme_adapter *jme = (struct jme_adapter *)arg;
1213         struct net_device *netdev = jme->dev;
1214         int rc;
1215
1216         while (!atomic_dec_and_test(&jme->link_changing)) {
1217                 atomic_inc(&jme->link_changing);
1218 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,33)
1219                 msg_intr(jme, "Get link change lock failed.\n");
1220 #else
1221                 netif_info(jme, intr, jme->dev, "Get link change lock failed.\n");
1222 #endif
1223                 while (atomic_read(&jme->link_changing) != 1)
1224 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,33)
1225                         msg_intr(jme, "Waiting link change lock.\n");
1226 #else
1227                         netif_info(jme, intr, jme->dev, "Waiting link change lock.\n");
1228 #endif
1229         }
1230
1231         if (jme_check_link(netdev, 1) && jme->old_mtu == netdev->mtu)
1232                 goto out;
1233
1234         jme->old_mtu = netdev->mtu;
1235         netif_stop_queue(netdev);
1236         if (jme_pseudo_hotplug_enabled(jme))
1237                 jme_stop_shutdown_timer(jme);
1238
1239         jme_stop_pcc_timer(jme);
1240         tasklet_disable(&jme->txclean_task);
1241         tasklet_disable(&jme->rxclean_task);
1242         tasklet_disable(&jme->rxempty_task);
1243
1244         if (netif_carrier_ok(netdev)) {
1245                 jme_reset_ghc_speed(jme);
1246                 jme_disable_rx_engine(jme);
1247                 jme_disable_tx_engine(jme);
1248                 jme_reset_mac_processor(jme);
1249                 jme_free_rx_resources(jme);
1250                 jme_free_tx_resources(jme);
1251
1252                 if (test_bit(JME_FLAG_POLL, &jme->flags))
1253                         jme_polling_mode(jme);
1254
1255                 netif_carrier_off(netdev);
1256         }
1257
1258         jme_check_link(netdev, 0);
1259         if (netif_carrier_ok(netdev)) {
1260                 rc = jme_setup_rx_resources(jme);
1261                 if (rc) {
1262                         jeprintk(jme->pdev, "Allocating resources for RX error"
1263                                 ", Device STOPPED!\n");
1264                         goto out_enable_tasklet;
1265                 }
1266
1267                 rc = jme_setup_tx_resources(jme);
1268                 if (rc) {
1269                         jeprintk(jme->pdev, "Allocating resources for TX error"
1270                                 ", Device STOPPED!\n");
1271                         goto err_out_free_rx_resources;
1272                 }
1273
1274                 jme_enable_rx_engine(jme);
1275                 jme_enable_tx_engine(jme);
1276
1277                 netif_start_queue(netdev);
1278
1279                 if (test_bit(JME_FLAG_POLL, &jme->flags))
1280                         jme_interrupt_mode(jme);
1281
1282                 jme_start_pcc_timer(jme);
1283         } else if (jme_pseudo_hotplug_enabled(jme)) {
1284                 jme_start_shutdown_timer(jme);
1285         }
1286
1287         goto out_enable_tasklet;
1288
1289 err_out_free_rx_resources:
1290         jme_free_rx_resources(jme);
1291 out_enable_tasklet:
1292         tasklet_enable(&jme->txclean_task);
1293         tasklet_hi_enable(&jme->rxclean_task);
1294         tasklet_hi_enable(&jme->rxempty_task);
1295 out:
1296         atomic_inc(&jme->link_changing);
1297 }
1298
1299 static void
1300 jme_rx_clean_tasklet(unsigned long arg)
1301 {
1302         struct jme_adapter *jme = (struct jme_adapter *)arg;
1303         struct dynpcc_info *dpi = &(jme->dpi);
1304
1305         jme_process_receive(jme, jme->rx_ring_size);
1306         ++(dpi->intr_cnt);
1307
1308 }
1309
1310 static int
1311 jme_poll(JME_NAPI_HOLDER(holder), JME_NAPI_WEIGHT(budget))
1312 {
1313         struct jme_adapter *jme = jme_napi_priv(holder);
1314         DECLARE_NETDEV
1315         int rest;
1316
1317         rest = jme_process_receive(jme, JME_NAPI_WEIGHT_VAL(budget));
1318
1319         while (atomic_read(&jme->rx_empty) > 0) {
1320                 atomic_dec(&jme->rx_empty);
1321                 ++(NET_STAT(jme).rx_dropped);
1322                 jme_restart_rx_engine(jme);
1323         }
1324         atomic_inc(&jme->rx_empty);
1325
1326         if (rest) {
1327                 JME_RX_COMPLETE(netdev, holder);
1328                 jme_interrupt_mode(jme);
1329         }
1330
1331         JME_NAPI_WEIGHT_SET(budget, rest);
1332         return JME_NAPI_WEIGHT_VAL(budget) - rest;
1333 }
1334
1335 static void
1336 jme_rx_empty_tasklet(unsigned long arg)
1337 {
1338         struct jme_adapter *jme = (struct jme_adapter *)arg;
1339
1340         if (unlikely(atomic_read(&jme->link_changing) != 1))
1341                 return;
1342
1343         if (unlikely(!netif_carrier_ok(jme->dev)))
1344                 return;
1345
1346 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,33)
1347         msg_rx_status(jme, "RX Queue Full!\n");
1348 #else
1349         netif_info(jme, rx_status, jme->dev, "RX Queue Full!\n");
1350 #endif
1351
1352         jme_rx_clean_tasklet(arg);
1353
1354         while (atomic_read(&jme->rx_empty) > 0) {
1355                 atomic_dec(&jme->rx_empty);
1356                 ++(NET_STAT(jme).rx_dropped);
1357                 jme_restart_rx_engine(jme);
1358         }
1359         atomic_inc(&jme->rx_empty);
1360 }
1361
1362 static void
1363 jme_wake_queue_if_stopped(struct jme_adapter *jme)
1364 {
1365         struct jme_ring *txring = &(jme->txring[0]);
1366
1367         smp_wmb();
1368         if (unlikely(netif_queue_stopped(jme->dev) &&
1369         atomic_read(&txring->nr_free) >= (jme->tx_wake_threshold))) {
1370 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,33)
1371                 msg_tx_done(jme, "TX Queue Waked.\n");
1372 #else
1373                 netif_info(jme, tx_done, jme->dev, "TX Queue Waked.\n");
1374 #endif
1375                 netif_wake_queue(jme->dev);
1376         }
1377
1378 }
1379
1380 static void
1381 jme_tx_clean_tasklet(unsigned long arg)
1382 {
1383         struct jme_adapter *jme = (struct jme_adapter *)arg;
1384         struct jme_ring *txring = &(jme->txring[0]);
1385         struct txdesc *txdesc = txring->desc;
1386         struct jme_buffer_info *txbi = txring->bufinf, *ctxbi, *ttxbi;
1387         int i, j, cnt = 0, max, err, mask;
1388
1389         tx_dbg(jme, "Into txclean.\n");
1390
1391         if (unlikely(!atomic_dec_and_test(&jme->tx_cleaning)))
1392                 goto out;
1393
1394         if (unlikely(atomic_read(&jme->link_changing) != 1))
1395                 goto out;
1396
1397         if (unlikely(!netif_carrier_ok(jme->dev)))
1398                 goto out;
1399
1400         max = jme->tx_ring_size - atomic_read(&txring->nr_free);
1401         mask = jme->tx_ring_mask;
1402
1403         for (i = atomic_read(&txring->next_to_clean) ; cnt < max ; ) {
1404
1405                 ctxbi = txbi + i;
1406
1407                 if (likely(ctxbi->skb &&
1408                 !(txdesc[i].descwb.flags & TXWBFLAG_OWN))) {
1409
1410                         tx_dbg(jme, "txclean: %d+%d@%lu\n",
1411                                         i, ctxbi->nr_desc, jiffies);
1412
1413                         err = txdesc[i].descwb.flags & TXWBFLAG_ALLERR;
1414
1415                         for (j = 1 ; j < ctxbi->nr_desc ; ++j) {
1416                                 ttxbi = txbi + ((i + j) & (mask));
1417                                 txdesc[(i + j) & (mask)].dw[0] = 0;
1418
1419                                 pci_unmap_page(jme->pdev,
1420                                                  ttxbi->mapping,
1421                                                  ttxbi->len,
1422                                                  PCI_DMA_TODEVICE);
1423
1424                                 ttxbi->mapping = 0;
1425                                 ttxbi->len = 0;
1426                         }
1427
1428                         dev_kfree_skb(ctxbi->skb);
1429
1430                         cnt += ctxbi->nr_desc;
1431
1432                         if (unlikely(err)) {
1433                                 ++(NET_STAT(jme).tx_carrier_errors);
1434                         } else {
1435                                 ++(NET_STAT(jme).tx_packets);
1436                                 NET_STAT(jme).tx_bytes += ctxbi->len;
1437                         }
1438
1439                         ctxbi->skb = NULL;
1440                         ctxbi->len = 0;
1441                         ctxbi->start_xmit = 0;
1442
1443                 } else {
1444                         break;
1445                 }
1446
1447                 i = (i + ctxbi->nr_desc) & mask;
1448
1449                 ctxbi->nr_desc = 0;
1450         }
1451
1452         tx_dbg(jme, "txclean: done %d@%lu.\n", i, jiffies);
1453         atomic_set(&txring->next_to_clean, i);
1454         atomic_add(cnt, &txring->nr_free);
1455
1456         jme_wake_queue_if_stopped(jme);
1457
1458 out:
1459         atomic_inc(&jme->tx_cleaning);
1460 }
1461
1462 static void
1463 jme_intr_msi(struct jme_adapter *jme, u32 intrstat)
1464 {
1465         /*
1466          * Disable interrupt
1467          */
1468         jwrite32f(jme, JME_IENC, INTR_ENABLE);
1469
1470         if (intrstat & (INTR_LINKCH | INTR_SWINTR)) {
1471                 /*
1472                  * Link change event is critical
1473                  * all other events are ignored
1474                  */
1475                 jwrite32(jme, JME_IEVE, intrstat);
1476                 tasklet_schedule(&jme->linkch_task);
1477                 goto out_reenable;
1478         }
1479
1480         if (intrstat & INTR_TMINTR) {
1481                 jwrite32(jme, JME_IEVE, INTR_TMINTR);
1482                 tasklet_schedule(&jme->pcc_task);
1483         }
1484
1485         if (intrstat & (INTR_PCCTXTO | INTR_PCCTX)) {
1486                 jwrite32(jme, JME_IEVE, INTR_PCCTXTO | INTR_PCCTX | INTR_TX0);
1487                 tasklet_schedule(&jme->txclean_task);
1488         }
1489
1490         if ((intrstat & (INTR_PCCRX0TO | INTR_PCCRX0 | INTR_RX0EMP))) {
1491                 jwrite32(jme, JME_IEVE, (intrstat & (INTR_PCCRX0TO |
1492                                                      INTR_PCCRX0 |
1493                                                      INTR_RX0EMP)) |
1494                                         INTR_RX0);
1495         }
1496
1497         if (test_bit(JME_FLAG_POLL, &jme->flags)) {
1498                 if (intrstat & INTR_RX0EMP)
1499                         atomic_inc(&jme->rx_empty);
1500
1501                 if ((intrstat & (INTR_PCCRX0TO | INTR_PCCRX0 | INTR_RX0EMP))) {
1502                         if (likely(JME_RX_SCHEDULE_PREP(jme))) {
1503                                 jme_polling_mode(jme);
1504                                 JME_RX_SCHEDULE(jme);
1505                         }
1506                 }
1507         } else {
1508                 if (intrstat & INTR_RX0EMP) {
1509                         atomic_inc(&jme->rx_empty);
1510                         tasklet_hi_schedule(&jme->rxempty_task);
1511                 } else if (intrstat & (INTR_PCCRX0TO | INTR_PCCRX0)) {
1512                         tasklet_hi_schedule(&jme->rxclean_task);
1513                 }
1514         }
1515
1516 out_reenable:
1517         /*
1518          * Re-enable interrupt
1519          */
1520         jwrite32f(jme, JME_IENS, INTR_ENABLE);
1521 }
1522
1523 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,18)
1524 static irqreturn_t
1525 jme_intr(int irq, void *dev_id, struct pt_regs *regs)
1526 #else
1527 static irqreturn_t
1528 jme_intr(int irq, void *dev_id)
1529 #endif
1530 {
1531         struct net_device *netdev = dev_id;
1532         struct jme_adapter *jme = netdev_priv(netdev);
1533         u32 intrstat;
1534
1535         intrstat = jread32(jme, JME_IEVE);
1536
1537         /*
1538          * Check if it's really an interrupt for us
1539          */
1540         if (unlikely((intrstat & INTR_ENABLE) == 0))
1541                 return IRQ_NONE;
1542
1543         /*
1544          * Check if the device still exist
1545          */
1546         if (unlikely(intrstat == ~((typeof(intrstat))0)))
1547                 return IRQ_NONE;
1548
1549         jme_intr_msi(jme, intrstat);
1550
1551         return IRQ_HANDLED;
1552 }
1553
1554 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,18)
1555 static irqreturn_t
1556 jme_msi(int irq, void *dev_id, struct pt_regs *regs)
1557 #else
1558 static irqreturn_t
1559 jme_msi(int irq, void *dev_id)
1560 #endif
1561 {
1562         struct net_device *netdev = dev_id;
1563         struct jme_adapter *jme = netdev_priv(netdev);
1564         u32 intrstat;
1565
1566         intrstat = jread32(jme, JME_IEVE);
1567
1568         jme_intr_msi(jme, intrstat);
1569
1570         return IRQ_HANDLED;
1571 }
1572
1573 static void
1574 jme_reset_link(struct jme_adapter *jme)
1575 {
1576         jwrite32(jme, JME_TMCSR, TMCSR_SWIT);
1577 }
1578
1579 static void
1580 jme_restart_an(struct jme_adapter *jme)
1581 {
1582         u32 bmcr;
1583
1584         spin_lock_bh(&jme->phy_lock);
1585         bmcr = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_BMCR);
1586         bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART);
1587         jme_mdio_write(jme->dev, jme->mii_if.phy_id, MII_BMCR, bmcr);
1588         spin_unlock_bh(&jme->phy_lock);
1589 }
1590
1591 static int
1592 jme_request_irq(struct jme_adapter *jme)
1593 {
1594         int rc;
1595         struct net_device *netdev = jme->dev;
1596 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,18)
1597         irqreturn_t (*handler)(int, void *, struct pt_regs *) = jme_intr;
1598         int irq_flags = SA_SHIRQ;
1599 #else
1600         irq_handler_t handler = jme_intr;
1601         int irq_flags = IRQF_SHARED;
1602 #endif
1603
1604         if (!pci_enable_msi(jme->pdev)) {
1605                 set_bit(JME_FLAG_MSI, &jme->flags);
1606                 handler = jme_msi;
1607                 irq_flags = 0;
1608         }
1609
1610         rc = request_irq(jme->pdev->irq, handler, irq_flags, netdev->name,
1611                           netdev);
1612         if (rc) {
1613                 jeprintk(jme->pdev,
1614                         "Unable to request %s interrupt (return: %d)\n",
1615                         test_bit(JME_FLAG_MSI, &jme->flags) ? "MSI" : "INTx",
1616                         rc);
1617
1618                 if (test_bit(JME_FLAG_MSI, &jme->flags)) {
1619                         pci_disable_msi(jme->pdev);
1620                         clear_bit(JME_FLAG_MSI, &jme->flags);
1621                 }
1622         } else {
1623                 netdev->irq = jme->pdev->irq;
1624         }
1625
1626         return rc;
1627 }
1628
1629 static void
1630 jme_free_irq(struct jme_adapter *jme)
1631 {
1632         free_irq(jme->pdev->irq, jme->dev);
1633         if (test_bit(JME_FLAG_MSI, &jme->flags)) {
1634                 pci_disable_msi(jme->pdev);
1635                 clear_bit(JME_FLAG_MSI, &jme->flags);
1636                 jme->dev->irq = jme->pdev->irq;
1637         }
1638 }
1639
1640 static int
1641 jme_open(struct net_device *netdev)
1642 {
1643         struct jme_adapter *jme = netdev_priv(netdev);
1644         int rc;
1645
1646         jme_clear_pm(jme);
1647         JME_NAPI_ENABLE(jme);
1648
1649         tasklet_enable(&jme->linkch_task);
1650         tasklet_enable(&jme->txclean_task);
1651         tasklet_hi_enable(&jme->rxclean_task);
1652         tasklet_hi_enable(&jme->rxempty_task);
1653
1654         rc = jme_request_irq(jme);
1655         if (rc)
1656                 goto err_out;
1657
1658         jme_start_irq(jme);
1659
1660         if (test_bit(JME_FLAG_SSET, &jme->flags))
1661                 jme_set_settings(netdev, &jme->old_ecmd);
1662         else
1663                 jme_reset_phy_processor(jme);
1664
1665         jme_reset_link(jme);
1666
1667         return 0;
1668
1669 err_out:
1670         netif_stop_queue(netdev);
1671         netif_carrier_off(netdev);
1672         return rc;
1673 }
1674
1675 #ifdef CONFIG_PM
1676 static void
1677 jme_set_100m_half(struct jme_adapter *jme)
1678 {
1679         u32 bmcr, tmp;
1680
1681         bmcr = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_BMCR);
1682         tmp = bmcr & ~(BMCR_ANENABLE | BMCR_SPEED100 |
1683                        BMCR_SPEED1000 | BMCR_FULLDPLX);
1684         tmp |= BMCR_SPEED100;
1685
1686         if (bmcr != tmp)
1687                 jme_mdio_write(jme->dev, jme->mii_if.phy_id, MII_BMCR, tmp);
1688
1689         if (jme->fpgaver)
1690                 jwrite32(jme, JME_GHC, GHC_SPEED_100M | GHC_LINK_POLL);
1691         else
1692                 jwrite32(jme, JME_GHC, GHC_SPEED_100M);
1693 }
1694
1695 #define JME_WAIT_LINK_TIME 2000 /* 2000ms */
1696 static void
1697 jme_wait_link(struct jme_adapter *jme)
1698 {
1699         u32 phylink, to = JME_WAIT_LINK_TIME;
1700
1701         mdelay(1000);
1702         phylink = jme_linkstat_from_phy(jme);
1703         while (!(phylink & PHY_LINK_UP) && (to -= 10) > 0) {
1704                 mdelay(10);
1705                 phylink = jme_linkstat_from_phy(jme);
1706         }
1707 }
1708 #endif
1709
1710 static inline void
1711 jme_phy_off(struct jme_adapter *jme)
1712 {
1713         jme_mdio_write(jme->dev, jme->mii_if.phy_id, MII_BMCR, BMCR_PDOWN);
1714 }
1715
1716 static int
1717 jme_close(struct net_device *netdev)
1718 {
1719         struct jme_adapter *jme = netdev_priv(netdev);
1720
1721         netif_stop_queue(netdev);
1722         netif_carrier_off(netdev);
1723
1724         jme_stop_irq(jme);
1725         jme_free_irq(jme);
1726
1727         JME_NAPI_DISABLE(jme);
1728
1729         tasklet_disable(&jme->linkch_task);
1730         tasklet_disable(&jme->txclean_task);
1731         tasklet_disable(&jme->rxclean_task);
1732         tasklet_disable(&jme->rxempty_task);
1733
1734         jme_reset_ghc_speed(jme);
1735         jme_disable_rx_engine(jme);
1736         jme_disable_tx_engine(jme);
1737         jme_reset_mac_processor(jme);
1738         jme_free_rx_resources(jme);
1739         jme_free_tx_resources(jme);
1740         jme->phylink = 0;
1741         jme_phy_off(jme);
1742
1743         return 0;
1744 }
1745
1746 static int
1747 jme_alloc_txdesc(struct jme_adapter *jme,
1748                         struct sk_buff *skb)
1749 {
1750         struct jme_ring *txring = &(jme->txring[0]);
1751         int idx, nr_alloc, mask = jme->tx_ring_mask;
1752
1753         idx = txring->next_to_use;
1754         nr_alloc = skb_shinfo(skb)->nr_frags + 2;
1755
1756         if (unlikely(atomic_read(&txring->nr_free) < nr_alloc))
1757                 return -1;
1758
1759         atomic_sub(nr_alloc, &txring->nr_free);
1760
1761         txring->next_to_use = (txring->next_to_use + nr_alloc) & mask;
1762
1763         return idx;
1764 }
1765
1766 static void
1767 jme_fill_tx_map(struct pci_dev *pdev,
1768                 struct txdesc *txdesc,
1769                 struct jme_buffer_info *txbi,
1770                 struct page *page,
1771                 u32 page_offset,
1772                 u32 len,
1773                 u8 hidma)
1774 {
1775         dma_addr_t dmaaddr;
1776
1777         dmaaddr = pci_map_page(pdev,
1778                                 page,
1779                                 page_offset,
1780                                 len,
1781                                 PCI_DMA_TODEVICE);
1782
1783         pci_dma_sync_single_for_device(pdev,
1784                                        dmaaddr,
1785                                        len,
1786                                        PCI_DMA_TODEVICE);
1787
1788         txdesc->dw[0] = 0;
1789         txdesc->dw[1] = 0;
1790         txdesc->desc2.flags     = TXFLAG_OWN;
1791         txdesc->desc2.flags     |= (hidma) ? TXFLAG_64BIT : 0;
1792         txdesc->desc2.datalen   = cpu_to_le16(len);
1793         txdesc->desc2.bufaddrh  = cpu_to_le32((__u64)dmaaddr >> 32);
1794         txdesc->desc2.bufaddrl  = cpu_to_le32(
1795                                         (__u64)dmaaddr & 0xFFFFFFFFUL);
1796
1797         txbi->mapping = dmaaddr;
1798         txbi->len = len;
1799 }
1800
1801 static void
1802 jme_map_tx_skb(struct jme_adapter *jme, struct sk_buff *skb, int idx)
1803 {
1804         struct jme_ring *txring = &(jme->txring[0]);
1805         struct txdesc *txdesc = txring->desc, *ctxdesc;
1806         struct jme_buffer_info *txbi = txring->bufinf, *ctxbi;
1807         u8 hidma = jme->dev->features & NETIF_F_HIGHDMA;
1808         int i, nr_frags = skb_shinfo(skb)->nr_frags;
1809         int mask = jme->tx_ring_mask;
1810         struct skb_frag_struct *frag;
1811         u32 len;
1812
1813         for (i = 0 ; i < nr_frags ; ++i) {
1814                 frag = &skb_shinfo(skb)->frags[i];
1815                 ctxdesc = txdesc + ((idx + i + 2) & (mask));
1816                 ctxbi = txbi + ((idx + i + 2) & (mask));
1817
1818                 jme_fill_tx_map(jme->pdev, ctxdesc, ctxbi, frag->page,
1819                                  frag->page_offset, frag->size, hidma);
1820         }
1821
1822         len = skb_is_nonlinear(skb) ? skb_headlen(skb) : skb->len;
1823         ctxdesc = txdesc + ((idx + 1) & (mask));
1824         ctxbi = txbi + ((idx + 1) & (mask));
1825         jme_fill_tx_map(jme->pdev, ctxdesc, ctxbi, virt_to_page(skb->data),
1826                         offset_in_page(skb->data), len, hidma);
1827
1828 }
1829
1830 static int
1831 jme_expand_header(struct jme_adapter *jme, struct sk_buff *skb)
1832 {
1833         if (unlikely(
1834 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,17)
1835         skb_shinfo(skb)->tso_size
1836 #else
1837         skb_shinfo(skb)->gso_size
1838 #endif
1839                         && skb_header_cloned(skb) &&
1840                         pskb_expand_head(skb, 0, 0, GFP_ATOMIC))) {
1841                 dev_kfree_skb(skb);
1842                 return -1;
1843         }
1844
1845         return 0;
1846 }
1847
1848 static int
1849 jme_tx_tso(struct sk_buff *skb, __le16 *mss, u8 *flags)
1850 {
1851 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,17)
1852         *mss = cpu_to_le16(skb_shinfo(skb)->tso_size << TXDESC_MSS_SHIFT);
1853 #else
1854         *mss = cpu_to_le16(skb_shinfo(skb)->gso_size << TXDESC_MSS_SHIFT);
1855 #endif
1856         if (*mss) {
1857                 *flags |= TXFLAG_LSEN;
1858
1859                 if (skb->protocol == htons(ETH_P_IP)) {
1860                         struct iphdr *iph = ip_hdr(skb);
1861
1862                         iph->check = 0;
1863                         tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr,
1864                                                                 iph->daddr, 0,
1865                                                                 IPPROTO_TCP,
1866                                                                 0);
1867                 } else {
1868                         struct ipv6hdr *ip6h = ipv6_hdr(skb);
1869
1870                         tcp_hdr(skb)->check = ~csum_ipv6_magic(&ip6h->saddr,
1871                                                                 &ip6h->daddr, 0,
1872                                                                 IPPROTO_TCP,
1873                                                                 0);
1874                 }
1875
1876                 return 0;
1877         }
1878
1879         return 1;
1880 }
1881
1882 static void
1883 jme_tx_csum(struct jme_adapter *jme, struct sk_buff *skb, u8 *flags)
1884 {
1885 #ifdef CHECKSUM_PARTIAL
1886         if (skb->ip_summed == CHECKSUM_PARTIAL)
1887 #else
1888         if (skb->ip_summed == CHECKSUM_HW)
1889 #endif
1890         {
1891                 u8 ip_proto;
1892
1893 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,21)
1894                 if (skb->protocol == htons(ETH_P_IP))
1895                         ip_proto = ip_hdr(skb)->protocol;
1896                 else if (skb->protocol == htons(ETH_P_IPV6))
1897                         ip_proto = ipv6_hdr(skb)->nexthdr;
1898                 else
1899                         ip_proto = 0;
1900 #else
1901                 switch (skb->protocol) {
1902                 case htons(ETH_P_IP):
1903                         ip_proto = ip_hdr(skb)->protocol;
1904                         break;
1905                 case htons(ETH_P_IPV6):
1906                         ip_proto = ipv6_hdr(skb)->nexthdr;
1907                         break;
1908                 default:
1909                         ip_proto = 0;
1910                         break;
1911                 }
1912 #endif
1913
1914                 switch (ip_proto) {
1915                 case IPPROTO_TCP:
1916                         *flags |= TXFLAG_TCPCS;
1917                         break;
1918                 case IPPROTO_UDP:
1919                         *flags |= TXFLAG_UDPCS;
1920                         break;
1921                 default:
1922 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,33)
1923                         msg_tx_err(jme, "Error upper layer protocol.\n");
1924 #else
1925                         netif_err(jme, tx_err, jme->dev, "Error upper layer protocol.\n");
1926 #endif
1927                         break;
1928                 }
1929         }
1930 }
1931
1932 static inline void
1933 jme_tx_vlan(struct sk_buff *skb, __le16 *vlan, u8 *flags)
1934 {
1935         if (vlan_tx_tag_present(skb)) {
1936                 *flags |= TXFLAG_TAGON;
1937                 *vlan = cpu_to_le16(vlan_tx_tag_get(skb));
1938         }
1939 }
1940
1941 static int
1942 jme_fill_tx_desc(struct jme_adapter *jme, struct sk_buff *skb, int idx)
1943 {
1944         struct jme_ring *txring = &(jme->txring[0]);
1945         struct txdesc *txdesc;
1946         struct jme_buffer_info *txbi;
1947         u8 flags;
1948
1949         txdesc = (struct txdesc *)txring->desc + idx;
1950         txbi = txring->bufinf + idx;
1951
1952         txdesc->dw[0] = 0;
1953         txdesc->dw[1] = 0;
1954         txdesc->dw[2] = 0;
1955         txdesc->dw[3] = 0;
1956         txdesc->desc1.pktsize = cpu_to_le16(skb->len);
1957         /*
1958          * Set OWN bit at final.
1959          * When kernel transmit faster than NIC.
1960          * And NIC trying to send this descriptor before we tell
1961          * it to start sending this TX queue.
1962          * Other fields are already filled correctly.
1963          */
1964         wmb();
1965         flags = TXFLAG_OWN | TXFLAG_INT;
1966         /*
1967          * Set checksum flags while not tso
1968          */
1969         if (jme_tx_tso(skb, &txdesc->desc1.mss, &flags))
1970                 jme_tx_csum(jme, skb, &flags);
1971         jme_tx_vlan(skb, &txdesc->desc1.vlan, &flags);
1972         jme_map_tx_skb(jme, skb, idx);
1973         txdesc->desc1.flags = flags;
1974         /*
1975          * Set tx buffer info after telling NIC to send
1976          * For better tx_clean timing
1977          */
1978         wmb();
1979         txbi->nr_desc = skb_shinfo(skb)->nr_frags + 2;
1980         txbi->skb = skb;
1981         txbi->len = skb->len;
1982         txbi->start_xmit = jiffies;
1983         if (!txbi->start_xmit)
1984                 txbi->start_xmit = (0UL-1);
1985
1986         return 0;
1987 }
1988
1989 static void
1990 jme_stop_queue_if_full(struct jme_adapter *jme)
1991 {
1992         struct jme_ring *txring = &(jme->txring[0]);
1993         struct jme_buffer_info *txbi = txring->bufinf;
1994         int idx = atomic_read(&txring->next_to_clean);
1995
1996         txbi += idx;
1997
1998         smp_wmb();
1999         if (unlikely(atomic_read(&txring->nr_free) < (MAX_SKB_FRAGS+2))) {
2000                 netif_stop_queue(jme->dev);
2001 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,33)
2002                 msg_tx_queued(jme, "TX Queue Paused.\n");
2003 #else
2004                 netif_info(jme, tx_queued, jme->dev, "TX Queue Paused.\n");
2005 #endif
2006                 smp_wmb();
2007                 if (atomic_read(&txring->nr_free)
2008                         >= (jme->tx_wake_threshold)) {
2009                         netif_wake_queue(jme->dev);
2010 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,33)
2011                         msg_tx_queued(jme, "TX Queue Fast Waked.\n");
2012 #else
2013                         netif_info(jme, tx_queued, jme->dev, "TX Queue Fast Waked.\n");
2014 #endif
2015                 }
2016         }
2017
2018         if (unlikely(txbi->start_xmit &&
2019                         (jiffies - txbi->start_xmit) >= TX_TIMEOUT &&
2020                         txbi->skb)) {
2021                 netif_stop_queue(jme->dev);
2022 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,33)
2023                 msg_tx_queued(jme, "TX Queue Stopped %d@%lu.\n", idx, jiffies);
2024 #else
2025                 netif_info(jme, tx_queued, jme->dev, "TX Queue Stopped %d@%lu.\n", idx, jiffies);
2026 #endif
2027         }
2028 }
2029
2030 /*
2031  * This function is already protected by netif_tx_lock()
2032  */
2033
2034 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,31)
2035 static int
2036 #else
2037 static netdev_tx_t
2038 #endif
2039 jme_start_xmit(struct sk_buff *skb, struct net_device *netdev)
2040 {
2041         struct jme_adapter *jme = netdev_priv(netdev);
2042         int idx;
2043
2044         if (unlikely(jme_expand_header(jme, skb))) {
2045                 ++(NET_STAT(jme).tx_dropped);
2046                 return NETDEV_TX_OK;
2047         }
2048
2049         idx = jme_alloc_txdesc(jme, skb);
2050
2051         if (unlikely(idx < 0)) {
2052                 netif_stop_queue(netdev);
2053 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,33)
2054                 msg_tx_err(jme, "BUG! Tx ring full when queue awake!\n");
2055 #else
2056                 netif_err(jme, tx_err, jme->dev, "BUG! Tx ring full when queue awake!\n");
2057 #endif
2058
2059                 return NETDEV_TX_BUSY;
2060         }
2061
2062         jme_fill_tx_desc(jme, skb, idx);
2063
2064         jwrite32(jme, JME_TXCS, jme->reg_txcs |
2065                                 TXCS_SELECT_QUEUE0 |
2066                                 TXCS_QUEUE0S |
2067                                 TXCS_ENABLE);
2068 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,29)
2069         netdev->trans_start = jiffies;
2070 #endif
2071
2072         tx_dbg(jme, "xmit: %d+%d@%lu\n", idx,
2073                         skb_shinfo(skb)->nr_frags + 2,
2074                         jiffies);
2075         jme_stop_queue_if_full(jme);
2076
2077         return NETDEV_TX_OK;
2078 }
2079
2080 static int
2081 jme_set_macaddr(struct net_device *netdev, void *p)
2082 {
2083         struct jme_adapter *jme = netdev_priv(netdev);
2084         struct sockaddr *addr = p;
2085         u32 val;
2086
2087         if (netif_running(netdev))
2088                 return -EBUSY;
2089
2090         spin_lock_bh(&jme->macaddr_lock);
2091         memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
2092
2093         val = (addr->sa_data[3] & 0xff) << 24 |
2094               (addr->sa_data[2] & 0xff) << 16 |
2095               (addr->sa_data[1] & 0xff) <<  8 |
2096               (addr->sa_data[0] & 0xff);
2097         jwrite32(jme, JME_RXUMA_LO, val);
2098         val = (addr->sa_data[5] & 0xff) << 8 |
2099               (addr->sa_data[4] & 0xff);
2100         jwrite32(jme, JME_RXUMA_HI, val);
2101         spin_unlock_bh(&jme->macaddr_lock);
2102
2103         return 0;
2104 }
2105
2106 static void
2107 jme_set_multi(struct net_device *netdev)
2108 {
2109         struct jme_adapter *jme = netdev_priv(netdev);
2110         u32 mc_hash[2] = {};
2111 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,33)
2112         int i;
2113 #endif
2114
2115         spin_lock_bh(&jme->rxmcs_lock);
2116
2117         jme->reg_rxmcs |= RXMCS_BRDFRAME | RXMCS_UNIFRAME;
2118
2119         if (netdev->flags & IFF_PROMISC) {
2120                 jme->reg_rxmcs |= RXMCS_ALLFRAME;
2121         } else if (netdev->flags & IFF_ALLMULTI) {
2122                 jme->reg_rxmcs |= RXMCS_ALLMULFRAME;
2123         } else if (netdev->flags & IFF_MULTICAST) {
2124                 struct dev_mc_list *mclist;
2125                 int bit_nr;
2126
2127                 jme->reg_rxmcs |= RXMCS_MULFRAME | RXMCS_MULFILTERED;
2128 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,33)
2129                 for (i = 0, mclist = netdev->mc_list;
2130                         mclist && i < netdev->mc_count;
2131                         ++i, mclist = mclist->next) {
2132 #else
2133                 netdev_for_each_mc_addr(mclist, netdev) {
2134 #endif
2135                         bit_nr = ether_crc(ETH_ALEN, mclist->dmi_addr) & 0x3F;
2136                         mc_hash[bit_nr >> 5] |= 1 << (bit_nr & 0x1F);
2137                 }
2138
2139                 jwrite32(jme, JME_RXMCHT_LO, mc_hash[0]);
2140                 jwrite32(jme, JME_RXMCHT_HI, mc_hash[1]);
2141         }
2142
2143         wmb();
2144         jwrite32(jme, JME_RXMCS, jme->reg_rxmcs);
2145
2146         spin_unlock_bh(&jme->rxmcs_lock);
2147 }
2148
2149 static int
2150 jme_change_mtu(struct net_device *netdev, int new_mtu)
2151 {
2152         struct jme_adapter *jme = netdev_priv(netdev);
2153
2154         if (new_mtu == jme->old_mtu)
2155                 return 0;
2156
2157         if (((new_mtu + ETH_HLEN) > MAX_ETHERNET_JUMBO_PACKET_SIZE) ||
2158                 ((new_mtu) < IPV6_MIN_MTU))
2159                 return -EINVAL;
2160
2161         if (new_mtu > 4000) {
2162                 jme->reg_rxcs &= ~RXCS_FIFOTHNP;
2163                 jme->reg_rxcs |= RXCS_FIFOTHNP_64QW;
2164                 jme_restart_rx_engine(jme);
2165         } else {
2166                 jme->reg_rxcs &= ~RXCS_FIFOTHNP;
2167                 jme->reg_rxcs |= RXCS_FIFOTHNP_128QW;
2168                 jme_restart_rx_engine(jme);
2169         }
2170
2171         if (new_mtu > 1900) {
2172                 netdev->features &= ~(NETIF_F_HW_CSUM |
2173                                 NETIF_F_TSO
2174 #ifdef NETIF_F_TSO6
2175                                 | NETIF_F_TSO6
2176 #endif
2177                                 );
2178         } else {
2179                 if (test_bit(JME_FLAG_TXCSUM, &jme->flags))
2180                         netdev->features |= NETIF_F_HW_CSUM;
2181                 if (test_bit(JME_FLAG_TSO, &jme->flags))
2182                         netdev->features |= NETIF_F_TSO
2183 #ifdef NETIF_F_TSO6
2184                                 | NETIF_F_TSO6
2185 #endif
2186                                 ;
2187         }
2188
2189         netdev->mtu = new_mtu;
2190         jme_reset_link(jme);
2191
2192         return 0;
2193 }
2194
2195 static void
2196 jme_tx_timeout(struct net_device *netdev)
2197 {
2198         struct jme_adapter *jme = netdev_priv(netdev);
2199
2200         jme->phylink = 0;
2201         jme_reset_phy_processor(jme);
2202         if (test_bit(JME_FLAG_SSET, &jme->flags))
2203                 jme_set_settings(netdev, &jme->old_ecmd);
2204
2205         /*
2206          * Force to Reset the link again
2207          */
2208         jme_reset_link(jme);
2209 }
2210
2211 static inline void jme_pause_rx(struct jme_adapter *jme)
2212 {
2213         atomic_dec(&jme->link_changing);
2214
2215         jme_set_rx_pcc(jme, PCC_OFF);
2216         if (test_bit(JME_FLAG_POLL, &jme->flags)) {
2217                 JME_NAPI_DISABLE(jme);
2218         } else {
2219                 tasklet_disable(&jme->rxclean_task);
2220                 tasklet_disable(&jme->rxempty_task);
2221         }
2222 }
2223
2224 static inline void jme_resume_rx(struct jme_adapter *jme)
2225 {
2226         struct dynpcc_info *dpi = &(jme->dpi);
2227
2228         if (test_bit(JME_FLAG_POLL, &jme->flags)) {
2229                 JME_NAPI_ENABLE(jme);
2230         } else {
2231                 tasklet_hi_enable(&jme->rxclean_task);
2232                 tasklet_hi_enable(&jme->rxempty_task);
2233         }
2234         dpi->cur                = PCC_P1;
2235         dpi->attempt            = PCC_P1;
2236         dpi->cnt                = 0;
2237         jme_set_rx_pcc(jme, PCC_P1);
2238
2239         atomic_inc(&jme->link_changing);
2240 }
2241
2242 static void
2243 jme_vlan_rx_register(struct net_device *netdev, struct vlan_group *grp)
2244 {
2245         struct jme_adapter *jme = netdev_priv(netdev);
2246
2247         jme_pause_rx(jme);
2248         jme->vlgrp = grp;
2249         jme_resume_rx(jme);
2250 }
2251
2252 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,21)
2253 static void
2254 jme_vlan_rx_kill_vid(struct net_device *netdev, unsigned short vid)
2255 {
2256         struct jme_adapter *jme = netdev_priv(netdev);
2257
2258         if(jme->vlgrp) {
2259                 jme_pause_rx(jme);
2260 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,20)
2261                 jme->vlgrp->vlan_devices[vid] = NULL;
2262 #else
2263                 vlan_group_set_device(jme->vlgrp, vid, NULL);
2264 #endif
2265                 jme_resume_rx(jme);
2266         }
2267 }
2268 #endif
2269
2270 static void
2271 jme_get_drvinfo(struct net_device *netdev,
2272                      struct ethtool_drvinfo *info)
2273 {
2274         struct jme_adapter *jme = netdev_priv(netdev);
2275
2276         strcpy(info->driver, DRV_NAME);
2277         strcpy(info->version, DRV_VERSION);
2278         strcpy(info->bus_info, pci_name(jme->pdev));
2279 }
2280
2281 static int
2282 jme_get_regs_len(struct net_device *netdev)
2283 {
2284         return JME_REG_LEN;
2285 }
2286
2287 static void
2288 mmapio_memcpy(struct jme_adapter *jme, u32 *p, u32 reg, int len)
2289 {
2290         int i;
2291
2292         for (i = 0 ; i < len ; i += 4)
2293                 p[i >> 2] = jread32(jme, reg + i);
2294 }
2295
2296 static void
2297 mdio_memcpy(struct jme_adapter *jme, u32 *p, int reg_nr)
2298 {
2299         int i;
2300         u16 *p16 = (u16 *)p;
2301
2302         for (i = 0 ; i < reg_nr ; ++i)
2303                 p16[i] = jme_mdio_read(jme->dev, jme->mii_if.phy_id, i);
2304 }
2305
2306 static void
2307 jme_get_regs(struct net_device *netdev, struct ethtool_regs *regs, void *p)
2308 {
2309         struct jme_adapter *jme = netdev_priv(netdev);
2310         u32 *p32 = (u32 *)p;
2311
2312         memset(p, 0xFF, JME_REG_LEN);
2313
2314         regs->version = 1;
2315         mmapio_memcpy(jme, p32, JME_MAC, JME_MAC_LEN);
2316
2317         p32 += 0x100 >> 2;
2318         mmapio_memcpy(jme, p32, JME_PHY, JME_PHY_LEN);
2319
2320         p32 += 0x100 >> 2;
2321         mmapio_memcpy(jme, p32, JME_MISC, JME_MISC_LEN);
2322
2323         p32 += 0x100 >> 2;
2324         mmapio_memcpy(jme, p32, JME_RSS, JME_RSS_LEN);
2325
2326         p32 += 0x100 >> 2;
2327         mdio_memcpy(jme, p32, JME_PHY_REG_NR);
2328 }
2329
2330 static int
2331 jme_get_coalesce(struct net_device *netdev, struct ethtool_coalesce *ecmd)
2332 {
2333         struct jme_adapter *jme = netdev_priv(netdev);
2334
2335         ecmd->tx_coalesce_usecs = PCC_TX_TO;
2336         ecmd->tx_max_coalesced_frames = PCC_TX_CNT;
2337
2338         if (test_bit(JME_FLAG_POLL, &jme->flags)) {
2339                 ecmd->use_adaptive_rx_coalesce = false;
2340                 ecmd->rx_coalesce_usecs = 0;
2341                 ecmd->rx_max_coalesced_frames = 0;
2342                 return 0;
2343         }
2344
2345         ecmd->use_adaptive_rx_coalesce = true;
2346
2347         switch (jme->dpi.cur) {
2348         case PCC_P1:
2349                 ecmd->rx_coalesce_usecs = PCC_P1_TO;
2350                 ecmd->rx_max_coalesced_frames = PCC_P1_CNT;
2351                 break;
2352         case PCC_P2:
2353                 ecmd->rx_coalesce_usecs = PCC_P2_TO;
2354                 ecmd->rx_max_coalesced_frames = PCC_P2_CNT;
2355                 break;
2356         case PCC_P3:
2357                 ecmd->rx_coalesce_usecs = PCC_P3_TO;
2358                 ecmd->rx_max_coalesced_frames = PCC_P3_CNT;
2359                 break;
2360         default:
2361                 break;
2362         }
2363
2364         return 0;
2365 }
2366
2367 static int
2368 jme_set_coalesce(struct net_device *netdev, struct ethtool_coalesce *ecmd)
2369 {
2370         struct jme_adapter *jme = netdev_priv(netdev);
2371         struct dynpcc_info *dpi = &(jme->dpi);
2372
2373         if (netif_running(netdev))
2374                 return -EBUSY;
2375
2376         if (ecmd->use_adaptive_rx_coalesce &&
2377             test_bit(JME_FLAG_POLL, &jme->flags)) {
2378                 clear_bit(JME_FLAG_POLL, &jme->flags);
2379                 jme->jme_rx = netif_rx;
2380                 jme->jme_vlan_rx = vlan_hwaccel_rx;
2381                 dpi->cur                = PCC_P1;
2382                 dpi->attempt            = PCC_P1;
2383                 dpi->cnt                = 0;
2384                 jme_set_rx_pcc(jme, PCC_P1);
2385                 jme_interrupt_mode(jme);
2386         } else if (!(ecmd->use_adaptive_rx_coalesce) &&
2387                    !(test_bit(JME_FLAG_POLL, &jme->flags))) {
2388                 set_bit(JME_FLAG_POLL, &jme->flags);
2389                 jme->jme_rx = netif_receive_skb;
2390                 jme->jme_vlan_rx = vlan_hwaccel_receive_skb;
2391                 jme_interrupt_mode(jme);
2392         }
2393
2394         return 0;
2395 }
2396
2397 static void
2398 jme_get_pauseparam(struct net_device *netdev,
2399                         struct ethtool_pauseparam *ecmd)
2400 {
2401         struct jme_adapter *jme = netdev_priv(netdev);
2402         u32 val;
2403
2404         ecmd->tx_pause = (jme->reg_txpfc & TXPFC_PF_EN) != 0;
2405         ecmd->rx_pause = (jme->reg_rxmcs & RXMCS_FLOWCTRL) != 0;
2406
2407         spin_lock_bh(&jme->phy_lock);
2408         val = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_ADVERTISE);
2409         spin_unlock_bh(&jme->phy_lock);
2410
2411         ecmd->autoneg =
2412                 (val & (ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM)) != 0;
2413 }
2414
2415 static int
2416 jme_set_pauseparam(struct net_device *netdev,
2417                         struct ethtool_pauseparam *ecmd)
2418 {
2419         struct jme_adapter *jme = netdev_priv(netdev);
2420         u32 val;
2421
2422         if (((jme->reg_txpfc & TXPFC_PF_EN) != 0) ^
2423                 (ecmd->tx_pause != 0)) {
2424
2425                 if (ecmd->tx_pause)
2426                         jme->reg_txpfc |= TXPFC_PF_EN;
2427                 else
2428                         jme->reg_txpfc &= ~TXPFC_PF_EN;
2429
2430                 jwrite32(jme, JME_TXPFC, jme->reg_txpfc);
2431         }
2432
2433         spin_lock_bh(&jme->rxmcs_lock);
2434         if (((jme->reg_rxmcs & RXMCS_FLOWCTRL) != 0) ^
2435                 (ecmd->rx_pause != 0)) {
2436
2437                 if (ecmd->rx_pause)
2438                         jme->reg_rxmcs |= RXMCS_FLOWCTRL;
2439                 else
2440                         jme->reg_rxmcs &= ~RXMCS_FLOWCTRL;
2441
2442                 jwrite32(jme, JME_RXMCS, jme->reg_rxmcs);
2443         }
2444         spin_unlock_bh(&jme->rxmcs_lock);
2445
2446         spin_lock_bh(&jme->phy_lock);
2447         val = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_ADVERTISE);
2448         if (((val & (ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM)) != 0) ^
2449                 (ecmd->autoneg != 0)) {
2450
2451                 if (ecmd->autoneg)
2452                         val |= (ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM);
2453                 else
2454                         val &= ~(ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM);
2455
2456                 jme_mdio_write(jme->dev, jme->mii_if.phy_id,
2457                                 MII_ADVERTISE, val);
2458         }
2459         spin_unlock_bh(&jme->phy_lock);
2460
2461         return 0;
2462 }
2463
2464 static void
2465 jme_get_wol(struct net_device *netdev,
2466                 struct ethtool_wolinfo *wol)
2467 {
2468         struct jme_adapter *jme = netdev_priv(netdev);
2469
2470         wol->supported = WAKE_MAGIC | WAKE_PHY;
2471
2472         wol->wolopts = 0;
2473
2474         if (jme->reg_pmcs & (PMCS_LFEN | PMCS_LREN))
2475                 wol->wolopts |= WAKE_PHY;
2476
2477         if (jme->reg_pmcs & PMCS_MFEN)
2478                 wol->wolopts |= WAKE_MAGIC;
2479
2480 }
2481
2482 static int
2483 jme_set_wol(struct net_device *netdev,
2484                 struct ethtool_wolinfo *wol)
2485 {
2486         struct jme_adapter *jme = netdev_priv(netdev);
2487
2488         if (wol->wolopts & (WAKE_MAGICSECURE |
2489                                 WAKE_UCAST |
2490                                 WAKE_MCAST |
2491                                 WAKE_BCAST |
2492                                 WAKE_ARP))
2493                 return -EOPNOTSUPP;
2494
2495         jme->reg_pmcs = 0;
2496
2497         if (wol->wolopts & WAKE_PHY)
2498                 jme->reg_pmcs |= PMCS_LFEN | PMCS_LREN;
2499
2500         if (wol->wolopts & WAKE_MAGIC)
2501                 jme->reg_pmcs |= PMCS_MFEN;
2502
2503         jwrite32(jme, JME_PMCS, jme->reg_pmcs);
2504
2505         return 0;
2506 }
2507
2508 static int
2509 jme_get_settings(struct net_device *netdev,
2510                      struct ethtool_cmd *ecmd)
2511 {
2512         struct jme_adapter *jme = netdev_priv(netdev);
2513         int rc;
2514
2515         spin_lock_bh(&jme->phy_lock);
2516         rc = mii_ethtool_gset(&(jme->mii_if), ecmd);
2517         spin_unlock_bh(&jme->phy_lock);
2518         return rc;
2519 }
2520
2521 static int
2522 jme_set_settings(struct net_device *netdev,
2523                      struct ethtool_cmd *ecmd)
2524 {
2525         struct jme_adapter *jme = netdev_priv(netdev);
2526         int rc, fdc = 0;
2527
2528         if (ecmd->speed == SPEED_1000 && ecmd->autoneg != AUTONEG_ENABLE)
2529                 return -EINVAL;
2530
2531         if (jme->mii_if.force_media &&
2532         ecmd->autoneg != AUTONEG_ENABLE &&
2533         (jme->mii_if.full_duplex != ecmd->duplex))
2534                 fdc = 1;
2535
2536         spin_lock_bh(&jme->phy_lock);
2537         rc = mii_ethtool_sset(&(jme->mii_if), ecmd);
2538         spin_unlock_bh(&jme->phy_lock);
2539
2540         if (!rc && fdc)
2541                 jme_reset_link(jme);
2542
2543         if (!rc) {
2544                 set_bit(JME_FLAG_SSET, &jme->flags);
2545                 jme->old_ecmd = *ecmd;
2546         }
2547
2548         return rc;
2549 }
2550
2551 static u32
2552 jme_get_link(struct net_device *netdev)
2553 {
2554         struct jme_adapter *jme = netdev_priv(netdev);
2555         return jread32(jme, JME_PHY_LINK) & PHY_LINK_UP;
2556 }
2557
2558 static u32
2559 jme_get_msglevel(struct net_device *netdev)
2560 {
2561         struct jme_adapter *jme = netdev_priv(netdev);
2562         return jme->msg_enable;
2563 }
2564
2565 static void
2566 jme_set_msglevel(struct net_device *netdev, u32 value)
2567 {
2568         struct jme_adapter *jme = netdev_priv(netdev);
2569         jme->msg_enable = value;
2570 }
2571
2572 static u32
2573 jme_get_rx_csum(struct net_device *netdev)
2574 {
2575         struct jme_adapter *jme = netdev_priv(netdev);
2576         return jme->reg_rxmcs & RXMCS_CHECKSUM;
2577 }
2578
2579 static int
2580 jme_set_rx_csum(struct net_device *netdev, u32 on)
2581 {
2582         struct jme_adapter *jme = netdev_priv(netdev);
2583
2584         spin_lock_bh(&jme->rxmcs_lock);
2585         if (on)
2586                 jme->reg_rxmcs |= RXMCS_CHECKSUM;
2587         else
2588                 jme->reg_rxmcs &= ~RXMCS_CHECKSUM;
2589         jwrite32(jme, JME_RXMCS, jme->reg_rxmcs);
2590         spin_unlock_bh(&jme->rxmcs_lock);
2591
2592         return 0;
2593 }
2594
2595 static int
2596 jme_set_tx_csum(struct net_device *netdev, u32 on)
2597 {
2598         struct jme_adapter *jme = netdev_priv(netdev);
2599
2600         if (on) {
2601                 set_bit(JME_FLAG_TXCSUM, &jme->flags);
2602                 if (netdev->mtu <= 1900)
2603                         netdev->features |= NETIF_F_HW_CSUM;
2604         } else {
2605                 clear_bit(JME_FLAG_TXCSUM, &jme->flags);
2606                 netdev->features &= ~NETIF_F_HW_CSUM;
2607         }
2608
2609         return 0;
2610 }
2611
2612 static int
2613 jme_set_tso(struct net_device *netdev, u32 on)
2614 {
2615         struct jme_adapter *jme = netdev_priv(netdev);
2616
2617         if (on) {
2618                 set_bit(JME_FLAG_TSO, &jme->flags);
2619                 if (netdev->mtu <= 1900)
2620                         netdev->features |= NETIF_F_TSO
2621 #ifdef NETIF_F_TSO6
2622                                 | NETIF_F_TSO6
2623 #endif
2624                                 ;
2625         } else {
2626                 clear_bit(JME_FLAG_TSO, &jme->flags);
2627                 netdev->features &= ~(NETIF_F_TSO
2628 #ifdef NETIF_F_TSO6
2629                                 | NETIF_F_TSO6
2630 #endif
2631                                 );
2632         }
2633
2634         return 0;
2635 }
2636
2637 static int
2638 jme_nway_reset(struct net_device *netdev)
2639 {
2640         struct jme_adapter *jme = netdev_priv(netdev);
2641         jme_restart_an(jme);
2642         return 0;
2643 }
2644
2645 static u8
2646 jme_smb_read(struct jme_adapter *jme, unsigned int addr)
2647 {
2648         u32 val;
2649         int to;
2650
2651         val = jread32(jme, JME_SMBCSR);
2652         to = JME_SMB_BUSY_TIMEOUT;
2653         while ((val & SMBCSR_BUSY) && --to) {
2654                 msleep(1);
2655                 val = jread32(jme, JME_SMBCSR);
2656         }
2657         if (!to) {
2658 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,33)
2659                 msg_hw(jme, "SMB Bus Busy.\n");
2660 #else
2661                 netif_err(jme, hw, jme->dev, "SMB Bus Busy.\n");
2662 #endif
2663                 return 0xFF;
2664         }
2665
2666         jwrite32(jme, JME_SMBINTF,
2667                 ((addr << SMBINTF_HWADDR_SHIFT) & SMBINTF_HWADDR) |
2668                 SMBINTF_HWRWN_READ |
2669                 SMBINTF_HWCMD);
2670
2671         val = jread32(jme, JME_SMBINTF);
2672         to = JME_SMB_BUSY_TIMEOUT;
2673         while ((val & SMBINTF_HWCMD) && --to) {
2674                 msleep(1);
2675                 val = jread32(jme, JME_SMBINTF);
2676         }
2677         if (!to) {
2678 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,33)
2679                 msg_hw(jme, "SMB Bus Busy.\n");
2680 #else
2681                 netif_err(jme, hw, jme->dev, "SMB Bus Busy.\n");
2682 #endif
2683                 return 0xFF;
2684         }
2685
2686         return (val & SMBINTF_HWDATR) >> SMBINTF_HWDATR_SHIFT;
2687 }
2688
2689 static void
2690 jme_smb_write(struct jme_adapter *jme, unsigned int addr, u8 data)
2691 {
2692         u32 val;
2693         int to;
2694
2695         val = jread32(jme, JME_SMBCSR);
2696         to = JME_SMB_BUSY_TIMEOUT;
2697         while ((val & SMBCSR_BUSY) && --to) {
2698                 msleep(1);
2699                 val = jread32(jme, JME_SMBCSR);
2700         }
2701         if (!to) {
2702 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,33)
2703                 msg_hw(jme, "SMB Bus Busy.\n");
2704 #else
2705                 netif_err(jme, hw, jme->dev, "SMB Bus Busy.\n");
2706 #endif
2707                 return;
2708         }
2709
2710         jwrite32(jme, JME_SMBINTF,
2711                 ((data << SMBINTF_HWDATW_SHIFT) & SMBINTF_HWDATW) |
2712                 ((addr << SMBINTF_HWADDR_SHIFT) & SMBINTF_HWADDR) |
2713                 SMBINTF_HWRWN_WRITE |
2714                 SMBINTF_HWCMD);
2715
2716         val = jread32(jme, JME_SMBINTF);
2717         to = JME_SMB_BUSY_TIMEOUT;
2718         while ((val & SMBINTF_HWCMD) && --to) {
2719                 msleep(1);
2720                 val = jread32(jme, JME_SMBINTF);
2721         }
2722         if (!to) {
2723 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,33)
2724                 msg_hw(jme, "SMB Bus Busy.\n");
2725 #else
2726                 netif_err(jme, hw, jme->dev, "SMB Bus Busy.\n");
2727 #endif
2728                 return;
2729         }
2730
2731         mdelay(2);
2732 }
2733
2734 static int
2735 jme_get_eeprom_len(struct net_device *netdev)
2736 {
2737         struct jme_adapter *jme = netdev_priv(netdev);
2738         u32 val;
2739         val = jread32(jme, JME_SMBCSR);
2740         return (val & SMBCSR_EEPROMD) ? JME_SMB_LEN : 0;
2741 }
2742
2743 static int
2744 jme_get_eeprom(struct net_device *netdev,
2745                 struct ethtool_eeprom *eeprom, u8 *data)
2746 {
2747         struct jme_adapter *jme = netdev_priv(netdev);
2748         int i, offset = eeprom->offset, len = eeprom->len;
2749
2750         /*
2751          * ethtool will check the boundary for us
2752          */
2753         eeprom->magic = JME_EEPROM_MAGIC;
2754         for (i = 0 ; i < len ; ++i)
2755                 data[i] = jme_smb_read(jme, i + offset);
2756
2757         return 0;
2758 }
2759
2760 static int
2761 jme_set_eeprom(struct net_device *netdev,
2762                 struct ethtool_eeprom *eeprom, u8 *data)
2763 {
2764         struct jme_adapter *jme = netdev_priv(netdev);
2765         int i, offset = eeprom->offset, len = eeprom->len;
2766
2767         if (eeprom->magic != JME_EEPROM_MAGIC)
2768                 return -EINVAL;
2769
2770         /*
2771          * ethtool will check the boundary for us
2772          */
2773         for (i = 0 ; i < len ; ++i)
2774                 jme_smb_write(jme, i + offset, data[i]);
2775
2776         return 0;
2777 }
2778
2779 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,18)
2780 static struct ethtool_ops jme_ethtool_ops = {
2781 #else
2782 static const struct ethtool_ops jme_ethtool_ops = {
2783 #endif
2784         .get_drvinfo            = jme_get_drvinfo,
2785         .get_regs_len           = jme_get_regs_len,
2786         .get_regs               = jme_get_regs,
2787         .get_coalesce           = jme_get_coalesce,
2788         .set_coalesce           = jme_set_coalesce,
2789         .get_pauseparam         = jme_get_pauseparam,
2790         .set_pauseparam         = jme_set_pauseparam,
2791         .get_wol                = jme_get_wol,
2792         .set_wol                = jme_set_wol,
2793         .get_settings           = jme_get_settings,
2794         .set_settings           = jme_set_settings,
2795         .get_link               = jme_get_link,
2796         .get_msglevel           = jme_get_msglevel,
2797         .set_msglevel           = jme_set_msglevel,
2798         .get_rx_csum            = jme_get_rx_csum,
2799         .set_rx_csum            = jme_set_rx_csum,
2800         .set_tx_csum            = jme_set_tx_csum,
2801         .set_tso                = jme_set_tso,
2802         .set_sg                 = ethtool_op_set_sg,
2803         .nway_reset             = jme_nway_reset,
2804         .get_eeprom_len         = jme_get_eeprom_len,
2805         .get_eeprom             = jme_get_eeprom,
2806         .set_eeprom             = jme_set_eeprom,
2807 };
2808
2809 static int
2810 jme_pci_dma64(struct pci_dev *pdev)
2811 {
2812         if (pdev->device == PCI_DEVICE_ID_JMICRON_JMC250 &&
2813 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,29)
2814             !pci_set_dma_mask(pdev, DMA_BIT_MASK(64))
2815 #else
2816             !pci_set_dma_mask(pdev, DMA_64BIT_MASK)
2817 #endif
2818            )
2819 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,29)
2820                 if (!pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
2821 #else
2822                 if (!pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK))
2823 #endif
2824                         return 1;
2825
2826         if (pdev->device == PCI_DEVICE_ID_JMICRON_JMC250 &&
2827 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,29)
2828             !pci_set_dma_mask(pdev, DMA_BIT_MASK(40))
2829 #else
2830             !pci_set_dma_mask(pdev, DMA_40BIT_MASK)
2831 #endif
2832            )
2833 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,29)
2834                 if (!pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(40)))
2835 #else
2836                 if (!pci_set_consistent_dma_mask(pdev, DMA_40BIT_MASK))
2837 #endif
2838                         return 1;
2839
2840 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,29)
2841         if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)))
2842                 if (!pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
2843 #else
2844         if (!pci_set_dma_mask(pdev, DMA_32BIT_MASK))
2845                 if (!pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK))
2846 #endif
2847                         return 0;
2848
2849         return -1;
2850 }
2851
2852 static inline void
2853 jme_phy_init(struct jme_adapter *jme)
2854 {
2855         u16 reg26;
2856
2857         reg26 = jme_mdio_read(jme->dev, jme->mii_if.phy_id, 26);
2858         jme_mdio_write(jme->dev, jme->mii_if.phy_id, 26, reg26 | 0x1000);
2859 }
2860
2861 static inline void
2862 jme_check_hw_ver(struct jme_adapter *jme)
2863 {
2864         u32 chipmode;
2865
2866         chipmode = jread32(jme, JME_CHIPMODE);
2867
2868         jme->fpgaver = (chipmode & CM_FPGAVER_MASK) >> CM_FPGAVER_SHIFT;
2869         jme->chiprev = (chipmode & CM_CHIPREV_MASK) >> CM_CHIPREV_SHIFT;
2870 }
2871
2872 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,29)
2873 static const struct net_device_ops jme_netdev_ops = {
2874         .ndo_open               = jme_open,
2875         .ndo_stop               = jme_close,
2876         .ndo_validate_addr      = eth_validate_addr,
2877         .ndo_start_xmit         = jme_start_xmit,
2878         .ndo_set_mac_address    = jme_set_macaddr,
2879         .ndo_set_multicast_list = jme_set_multi,
2880         .ndo_change_mtu         = jme_change_mtu,
2881         .ndo_tx_timeout         = jme_tx_timeout,
2882         .ndo_vlan_rx_register   = jme_vlan_rx_register,
2883 };
2884 #endif
2885
2886 static int __devinit
2887 jme_init_one(struct pci_dev *pdev,
2888              const struct pci_device_id *ent)
2889 {
2890         int rc = 0, using_dac, i;
2891         struct net_device *netdev;
2892         struct jme_adapter *jme;
2893         u16 bmcr, bmsr;
2894         u32 apmc;
2895
2896         /*
2897          * set up PCI device basics
2898          */
2899         rc = pci_enable_device(pdev);
2900         if (rc) {
2901                 jeprintk(pdev, "Cannot enable PCI device.\n");
2902                 goto err_out;
2903         }
2904
2905         using_dac = jme_pci_dma64(pdev);
2906         if (using_dac < 0) {
2907                 jeprintk(pdev, "Cannot set PCI DMA Mask.\n");
2908                 rc = -EIO;
2909                 goto err_out_disable_pdev;
2910         }
2911
2912         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
2913                 jeprintk(pdev, "No PCI resource region found.\n");
2914                 rc = -ENOMEM;
2915                 goto err_out_disable_pdev;
2916         }
2917
2918         rc = pci_request_regions(pdev, DRV_NAME);
2919         if (rc) {
2920                 jeprintk(pdev, "Cannot obtain PCI resource region.\n");
2921                 goto err_out_disable_pdev;
2922         }
2923
2924         pci_set_master(pdev);
2925
2926         /*
2927          * alloc and init net device
2928          */
2929         netdev = alloc_etherdev(sizeof(*jme));
2930         if (!netdev) {
2931                 jeprintk(pdev, "Cannot allocate netdev structure.\n");
2932                 rc = -ENOMEM;
2933                 goto err_out_release_regions;
2934         }
2935 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,29)
2936         netdev->netdev_ops = &jme_netdev_ops;
2937 #else
2938         netdev->open                    = jme_open;
2939         netdev->stop                    = jme_close;
2940         netdev->hard_start_xmit         = jme_start_xmit;
2941         netdev->set_mac_address         = jme_set_macaddr;
2942         netdev->set_multicast_list      = jme_set_multi;
2943         netdev->change_mtu              = jme_change_mtu;
2944         netdev->tx_timeout              = jme_tx_timeout;
2945         netdev->vlan_rx_register        = jme_vlan_rx_register;
2946 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,21)
2947         netdev->vlan_rx_kill_vid        = jme_vlan_rx_kill_vid;
2948 #endif
2949         NETDEV_GET_STATS(netdev, &jme_get_stats);
2950 #endif
2951         netdev->ethtool_ops             = &jme_ethtool_ops;
2952         netdev->watchdog_timeo          = TX_TIMEOUT;
2953         netdev->features                =       NETIF_F_HW_CSUM |
2954                                                 NETIF_F_SG |
2955                                                 NETIF_F_TSO |
2956 #ifdef NETIF_F_TSO6
2957                                                 NETIF_F_TSO6 |
2958 #endif
2959                                                 NETIF_F_HW_VLAN_TX |
2960                                                 NETIF_F_HW_VLAN_RX;
2961         if (using_dac)
2962                 netdev->features        |=      NETIF_F_HIGHDMA;
2963
2964         SET_NETDEV_DEV(netdev, &pdev->dev);
2965         pci_set_drvdata(pdev, netdev);
2966
2967         /*
2968          * init adapter info
2969          */
2970         jme = netdev_priv(netdev);
2971         jme->pdev = pdev;
2972         jme->dev = netdev;
2973         jme->jme_rx = netif_rx;
2974         jme->jme_vlan_rx = vlan_hwaccel_rx;
2975         jme->old_mtu = netdev->mtu = 1500;
2976         jme->phylink = 0;
2977         jme->tx_ring_size = 1 << 10;
2978         jme->tx_ring_mask = jme->tx_ring_size - 1;
2979         jme->tx_wake_threshold = 1 << 9;
2980         jme->rx_ring_size = 1 << 9;
2981         jme->rx_ring_mask = jme->rx_ring_size - 1;
2982         jme->msg_enable = JME_DEF_MSG_ENABLE;
2983         jme->regs = ioremap(pci_resource_start(pdev, 0),
2984                              pci_resource_len(pdev, 0));
2985         if (!(jme->regs)) {
2986                 jeprintk(pdev, "Mapping PCI resource region error.\n");
2987                 rc = -ENOMEM;
2988                 goto err_out_free_netdev;
2989         }
2990
2991         if (no_pseudohp) {
2992                 apmc = jread32(jme, JME_APMC) & ~JME_APMC_PSEUDO_HP_EN;
2993                 jwrite32(jme, JME_APMC, apmc);
2994         } else if (force_pseudohp) {
2995                 apmc = jread32(jme, JME_APMC) | JME_APMC_PSEUDO_HP_EN;
2996                 jwrite32(jme, JME_APMC, apmc);
2997         }
2998
2999         NETIF_NAPI_SET(netdev, &jme->napi, jme_poll, jme->rx_ring_size >> 2)
3000
3001         spin_lock_init(&jme->phy_lock);
3002         spin_lock_init(&jme->macaddr_lock);
3003         spin_lock_init(&jme->rxmcs_lock);
3004
3005         atomic_set(&jme->link_changing, 1);
3006         atomic_set(&jme->rx_cleaning, 1);
3007         atomic_set(&jme->tx_cleaning, 1);
3008         atomic_set(&jme->rx_empty, 1);
3009
3010         tasklet_init(&jme->pcc_task,
3011                      jme_pcc_tasklet,
3012                      (unsigned long) jme);
3013         tasklet_init(&jme->linkch_task,
3014                      jme_link_change_tasklet,
3015                      (unsigned long) jme);
3016         tasklet_init(&jme->txclean_task,
3017                      jme_tx_clean_tasklet,
3018                      (unsigned long) jme);
3019         tasklet_init(&jme->rxclean_task,
3020                      jme_rx_clean_tasklet,
3021                      (unsigned long) jme);
3022         tasklet_init(&jme->rxempty_task,
3023                      jme_rx_empty_tasklet,
3024                      (unsigned long) jme);
3025         tasklet_disable_nosync(&jme->linkch_task);
3026         tasklet_disable_nosync(&jme->txclean_task);
3027         tasklet_disable_nosync(&jme->rxclean_task);
3028         tasklet_disable_nosync(&jme->rxempty_task);
3029         jme->dpi.cur = PCC_P1;
3030
3031         jme->reg_ghc = 0;
3032         jme->reg_rxcs = RXCS_DEFAULT;
3033         jme->reg_rxmcs = RXMCS_DEFAULT;
3034         jme->reg_txpfc = 0;
3035         jme->reg_pmcs = PMCS_MFEN;
3036         set_bit(JME_FLAG_TXCSUM, &jme->flags);
3037         set_bit(JME_FLAG_TSO, &jme->flags);
3038
3039         /*
3040          * Get Max Read Req Size from PCI Config Space
3041          */
3042         pci_read_config_byte(pdev, PCI_DCSR_MRRS, &jme->mrrs);
3043         jme->mrrs &= PCI_DCSR_MRRS_MASK;
3044         switch (jme->mrrs) {
3045         case MRRS_128B:
3046                 jme->reg_txcs = TXCS_DEFAULT | TXCS_DMASIZE_128B;
3047                 break;
3048         case MRRS_256B:
3049                 jme->reg_txcs = TXCS_DEFAULT | TXCS_DMASIZE_256B;
3050                 break;
3051         default:
3052                 jme->reg_txcs = TXCS_DEFAULT | TXCS_DMASIZE_512B;
3053                 break;
3054         };
3055
3056         /*
3057          * Must check before reset_mac_processor
3058          */
3059         jme_check_hw_ver(jme);
3060         jme->mii_if.dev = netdev;
3061         if (jme->fpgaver) {
3062                 jme->mii_if.phy_id = 0;
3063                 for (i = 1 ; i < 32 ; ++i) {
3064                         bmcr = jme_mdio_read(netdev, i, MII_BMCR);
3065                         bmsr = jme_mdio_read(netdev, i, MII_BMSR);
3066                         if (bmcr != 0xFFFFU && (bmcr != 0 || bmsr != 0)) {
3067                                 jme->mii_if.phy_id = i;
3068                                 break;
3069                         }
3070                 }
3071
3072                 if (!jme->mii_if.phy_id) {
3073                         rc = -EIO;
3074                         jeprintk(pdev, "Can not find phy_id.\n");
3075                          goto err_out_unmap;
3076                 }
3077
3078                 jme->reg_ghc |= GHC_LINK_POLL;
3079         } else {
3080                 jme->mii_if.phy_id = 1;
3081         }
3082         if (pdev->device == PCI_DEVICE_ID_JMICRON_JMC250)
3083                 jme->mii_if.supports_gmii = true;
3084         else
3085                 jme->mii_if.supports_gmii = false;
3086         jme->mii_if.mdio_read = jme_mdio_read;
3087         jme->mii_if.mdio_write = jme_mdio_write;
3088
3089         jme_clear_pm(jme);
3090         jme_set_phyfifoa(jme);
3091         pci_read_config_byte(pdev, PCI_REVISION_ID, &jme->rev);
3092         if (!jme->fpgaver)
3093                 jme_phy_init(jme);
3094         jme_phy_off(jme);
3095
3096         /*
3097          * Reset MAC processor and reload EEPROM for MAC Address
3098          */
3099         jme_reset_mac_processor(jme);
3100         rc = jme_reload_eeprom(jme);
3101         if (rc) {
3102                 jeprintk(pdev,
3103                         "Reload eeprom for reading MAC Address error.\n");
3104                 goto err_out_unmap;
3105         }
3106         jme_load_macaddr(netdev);
3107
3108         /*
3109          * Tell stack that we are not ready to work until open()
3110          */
3111         netif_carrier_off(netdev);
3112         netif_stop_queue(netdev);
3113
3114         /*
3115          * Register netdev
3116          */
3117         rc = register_netdev(netdev);
3118         if (rc) {
3119                 jeprintk(pdev, "Cannot register net device.\n");
3120                 goto err_out_unmap;
3121         }
3122
3123 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,33)
3124         msg_probe(jme, "%s%s ver:%x rev:%x "
3125                         "macaddr: %02x:%02x:%02x:%02x:%02x:%02x\n",
3126                 (jme->pdev->device == PCI_DEVICE_ID_JMICRON_JMC250) ?
3127                         "JMC250 Gigabit Ethernet" :
3128                         (jme->pdev->device == PCI_DEVICE_ID_JMICRON_JMC260) ?
3129                                 "JMC260 Fast Ethernet" : "Unknown",
3130                 (jme->fpgaver != 0) ? " (FPGA)" : "",
3131                 (jme->fpgaver != 0) ? jme->fpgaver : jme->chiprev,
3132                 jme->rev,
3133                 netdev->dev_addr[0],
3134                 netdev->dev_addr[1],
3135                 netdev->dev_addr[2],
3136                 netdev->dev_addr[3],
3137                 netdev->dev_addr[4],
3138                 netdev->dev_addr[5]);
3139 #else
3140         netif_info(jme, probe, jme->dev, "%s%s ver:%x rev:%x macaddr:%pM\n",
3141                    (jme->pdev->device == PCI_DEVICE_ID_JMICRON_JMC250) ?
3142                    "JMC250 Gigabit Ethernet" :
3143                    (jme->pdev->device == PCI_DEVICE_ID_JMICRON_JMC260) ?
3144                    "JMC260 Fast Ethernet" : "Unknown",
3145                    (jme->fpgaver != 0) ? " (FPGA)" : "",
3146                    (jme->fpgaver != 0) ? jme->fpgaver : jme->chiprev,
3147                    jme->rev, netdev->dev_addr);
3148 #endif
3149
3150         return 0;
3151
3152 err_out_unmap:
3153         iounmap(jme->regs);
3154 err_out_free_netdev:
3155         pci_set_drvdata(pdev, NULL);
3156         free_netdev(netdev);
3157 err_out_release_regions:
3158         pci_release_regions(pdev);
3159 err_out_disable_pdev:
3160         pci_disable_device(pdev);
3161 err_out:
3162         return rc;
3163 }
3164
3165 static void __devexit
3166 jme_remove_one(struct pci_dev *pdev)
3167 {
3168         struct net_device *netdev = pci_get_drvdata(pdev);
3169         struct jme_adapter *jme = netdev_priv(netdev);
3170
3171         unregister_netdev(netdev);
3172         iounmap(jme->regs);
3173         pci_set_drvdata(pdev, NULL);
3174         free_netdev(netdev);
3175         pci_release_regions(pdev);
3176         pci_disable_device(pdev);
3177
3178 }
3179
3180 #ifdef CONFIG_PM
3181 static int
3182 jme_suspend(struct pci_dev *pdev, pm_message_t state)
3183 {
3184         struct net_device *netdev = pci_get_drvdata(pdev);
3185         struct jme_adapter *jme = netdev_priv(netdev);
3186
3187         atomic_dec(&jme->link_changing);
3188
3189         netif_device_detach(netdev);
3190         netif_stop_queue(netdev);
3191         jme_stop_irq(jme);
3192
3193         tasklet_disable(&jme->txclean_task);
3194         tasklet_disable(&jme->rxclean_task);
3195         tasklet_disable(&jme->rxempty_task);
3196
3197         if (netif_carrier_ok(netdev)) {
3198                 if (test_bit(JME_FLAG_POLL, &jme->flags))
3199                         jme_polling_mode(jme);
3200
3201                 jme_stop_pcc_timer(jme);
3202                 jme_reset_ghc_speed(jme);
3203                 jme_disable_rx_engine(jme);
3204                 jme_disable_tx_engine(jme);
3205                 jme_reset_mac_processor(jme);
3206                 jme_free_rx_resources(jme);
3207                 jme_free_tx_resources(jme);
3208                 netif_carrier_off(netdev);
3209                 jme->phylink = 0;
3210         }
3211
3212         tasklet_enable(&jme->txclean_task);
3213         tasklet_hi_enable(&jme->rxclean_task);
3214         tasklet_hi_enable(&jme->rxempty_task);
3215
3216         pci_save_state(pdev);
3217         if (jme->reg_pmcs) {
3218                 jme_set_100m_half(jme);
3219
3220                 if (jme->reg_pmcs & (PMCS_LFEN | PMCS_LREN))
3221                         jme_wait_link(jme);
3222
3223                 jwrite32(jme, JME_PMCS, jme->reg_pmcs);
3224
3225                 pci_enable_wake(pdev, PCI_D3cold, true);
3226         } else {
3227                 jme_phy_off(jme);
3228         }
3229         pci_set_power_state(pdev, PCI_D3cold);
3230
3231         return 0;
3232 }
3233
3234 static int
3235 jme_resume(struct pci_dev *pdev)
3236 {
3237         struct net_device *netdev = pci_get_drvdata(pdev);
3238         struct jme_adapter *jme = netdev_priv(netdev);
3239
3240         jme_clear_pm(jme);
3241         pci_restore_state(pdev);
3242
3243         if (test_bit(JME_FLAG_SSET, &jme->flags))
3244                 jme_set_settings(netdev, &jme->old_ecmd);
3245         else
3246                 jme_reset_phy_processor(jme);
3247
3248         jme_start_irq(jme);
3249         netif_device_attach(netdev);
3250
3251         atomic_inc(&jme->link_changing);
3252
3253         jme_reset_link(jme);
3254
3255         return 0;
3256 }
3257 #endif
3258
3259 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,24)
3260 static struct pci_device_id jme_pci_tbl[] = {
3261 #else
3262 static DEFINE_PCI_DEVICE_TABLE(jme_pci_tbl) = {
3263 #endif
3264         { PCI_VDEVICE(JMICRON, PCI_DEVICE_ID_JMICRON_JMC250) },
3265         { PCI_VDEVICE(JMICRON, PCI_DEVICE_ID_JMICRON_JMC260) },
3266         { }
3267 };
3268
3269 static struct pci_driver jme_driver = {
3270         .name           = DRV_NAME,
3271         .id_table       = jme_pci_tbl,
3272         .probe          = jme_init_one,
3273         .remove         = __devexit_p(jme_remove_one),
3274 #ifdef CONFIG_PM
3275         .suspend        = jme_suspend,
3276         .resume         = jme_resume,
3277 #endif /* CONFIG_PM */
3278 };
3279
3280 static int __init
3281 jme_init_module(void)
3282 {
3283         printk(KERN_INFO PFX "JMicron JMC2XX ethernet "
3284                "driver version %s\n", DRV_VERSION);
3285         return pci_register_driver(&jme_driver);
3286 }
3287
3288 static void __exit
3289 jme_cleanup_module(void)
3290 {
3291         pci_unregister_driver(&jme_driver);
3292 }
3293
3294 module_init(jme_init_module);
3295 module_exit(jme_cleanup_module);
3296
3297 MODULE_AUTHOR("Guo-Fu Tseng <cooldavid@cooldavid.org>");
3298 MODULE_DESCRIPTION("JMicron JMC2x0 PCI Express Ethernet driver");
3299 MODULE_LICENSE("GPL");
3300 MODULE_VERSION(DRV_VERSION);
3301 MODULE_DEVICE_TABLE(pci, jme_pci_tbl);
3302