git.oblomov.eu Git - linux-2.6/blob - drivers/net/chelsio/cxgb2.c

   1 /*****************************************************************************
   2  *                                                                           *
   3  * File: cxgb2.c                                                             *
   4  * $Revision: 1.25 $                                                         *
   5  * $Date: 2005/06/22 00:43:25 $                                              *
   6  * Description:                                                              *
   7  *  Chelsio 10Gb Ethernet Driver.                                            *
   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, version 2, as       *
  11  * published by the Free Software Foundation.                                *
  12  *                                                                           *
  13  * You should have received a copy of the GNU General Public License along   *
  14  * with this program; if not, write to the Free Software Foundation, Inc.,   *
  15  * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.                 *
  16  *                                                                           *
  17  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED    *
  18  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF      *
  19  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.                     *
  20  *                                                                           *
  21  * http://www.chelsio.com                                                    *
  22  *                                                                           *
  23  * Copyright (c) 2003 - 2005 Chelsio Communications, Inc.                    *
  24  * All rights reserved.                                                      *
  25  *                                                                           *
  26  * Maintainers: maintainers@chelsio.com                                      *
  27  *                                                                           *
  28  * Authors: Dimitrios Michailidis   <dm@chelsio.com>                         *
  29  *          Tina Yang               <tainay@chelsio.com>                     *
  30  *          Felix Marti             <felix@chelsio.com>                      *
  31  *          Scott Bardone           <sbardone@chelsio.com>                   *
  32  *          Kurt Ottaway            <kottaway@chelsio.com>                   *
  33  *          Frank DiMambro          <frank@chelsio.com>                      *
  34  *                                                                           *
  35  * History:                                                                  *
  36  *                                                                           *
  37  ****************************************************************************/
  38
  39 #include "common.h"
  40 #include <linux/module.h>
  41 #include <linux/init.h>
  42 #include <linux/pci.h>
  43 #include <linux/netdevice.h>
  44 #include <linux/etherdevice.h>
  45 #include <linux/if_vlan.h>
  46 #include <linux/mii.h>
  47 #include <linux/sockios.h>
  48 #include <linux/dma-mapping.h>
  49 #include <asm/uaccess.h>
  50
  51 #include "cpl5_cmd.h"
  52 #include "regs.h"
  53 #include "gmac.h"
  54 #include "cphy.h"
  55 #include "sge.h"
  56 #include "tp.h"
  57 #include "espi.h"
  58 #include "elmer0.h"
  59
  60 #include <linux/workqueue.h>
  61
  62 static inline void schedule_mac_stats_update(struct adapter *ap, int secs)
  63 {
  64         schedule_delayed_work(&ap->stats_update_task, secs * HZ);
  65 }
  66
  67 static inline void cancel_mac_stats_update(struct adapter *ap)
  68 {
  69         cancel_delayed_work(&ap->stats_update_task);
  70 }
  71
  72 #define MAX_CMDQ_ENTRIES        16384
  73 #define MAX_CMDQ1_ENTRIES       1024
  74 #define MAX_RX_BUFFERS          16384
  75 #define MAX_RX_JUMBO_BUFFERS    16384
  76 #define MAX_TX_BUFFERS_HIGH     16384U
  77 #define MAX_TX_BUFFERS_LOW      1536U
  78 #define MAX_TX_BUFFERS          1460U
  79 #define MIN_FL_ENTRIES          32
  80
  81 #define DFLT_MSG_ENABLE (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK | \
  82                          NETIF_MSG_TIMER | NETIF_MSG_IFDOWN | NETIF_MSG_IFUP |\
  83                          NETIF_MSG_RX_ERR | NETIF_MSG_TX_ERR)
  84
  85 /*
  86  * The EEPROM is actually bigger but only the first few bytes are used so we
  87  * only report those.
  88  */
  89 #define EEPROM_SIZE 32
  90
  91 MODULE_DESCRIPTION(DRV_DESCRIPTION);
  92 MODULE_AUTHOR("Chelsio Communications");
  93 MODULE_LICENSE("GPL");
  94
  95 static int dflt_msg_enable = DFLT_MSG_ENABLE;
  96
  97 module_param(dflt_msg_enable, int, 0);
  98 MODULE_PARM_DESC(dflt_msg_enable, "Chelsio T1 default message enable bitmap");
  99
 100 #define HCLOCK 0x0
 101 #define LCLOCK 0x1
 102
 103 /* T1 cards powersave mode */
 104 static int t1_clock(struct adapter *adapter, int mode);
 105 static int t1powersave = 1;     /* HW default is powersave mode. */
 106
 107 module_param(t1powersave, int, 0);
 108 MODULE_PARM_DESC(t1powersave, "Enable/Disable T1 powersaving mode");
 109
 110 static int disable_msi = 0;
 111 module_param(disable_msi, int, 0);
 112 MODULE_PARM_DESC(disable_msi, "Disable Message Signaled Interrupt (MSI)");
 113
 114 static const char pci_speed[][4] = {
 115         "33", "66", "100", "133"
 116 };
 117
 118 /*
 119  * Setup MAC to receive the types of packets we want.
 120  */
 121 static void t1_set_rxmode(struct net_device *dev)
 122 {
 123         struct adapter *adapter = dev->ml_priv;
 124         struct cmac *mac = adapter->port[dev->if_port].mac;
 125         struct t1_rx_mode rm;
 126
 127         rm.dev = dev;
 128         rm.idx = 0;
 129         rm.list = dev->mc_list;
 130         mac->ops->set_rx_mode(mac, &rm);
 131 }
 132
 133 static void link_report(struct port_info *p)
 134 {
 135         if (!netif_carrier_ok(p->dev))
 136                 printk(KERN_INFO "%s: link down\n", p->dev->name);
 137         else {
 138                 const char *s = "10Mbps";
 139
 140                 switch (p->link_config.speed) {
 141                         case SPEED_10000: s = "10Gbps"; break;
 142                         case SPEED_1000:  s = "1000Mbps"; break;
 143                         case SPEED_100:   s = "100Mbps"; break;
 144                 }
 145
 146                 printk(KERN_INFO "%s: link up, %s, %s-duplex\n",
 147                        p->dev->name, s,
 148                        p->link_config.duplex == DUPLEX_FULL ? "full" : "half");
 149         }
 150 }
 151
 152 void t1_link_negotiated(struct adapter *adapter, int port_id, int link_stat,
 153                         int speed, int duplex, int pause)
 154 {
 155         struct port_info *p = &adapter->port[port_id];
 156
 157         if (link_stat != netif_carrier_ok(p->dev)) {
 158                 if (link_stat)
 159                         netif_carrier_on(p->dev);
 160                 else
 161                         netif_carrier_off(p->dev);
 162                 link_report(p);
 163
 164                 /* multi-ports: inform toe */
 165                 if ((speed > 0) && (adapter->params.nports > 1)) {
 166                         unsigned int sched_speed = 10;
 167                         switch (speed) {
 168                         case SPEED_1000:
 169                                 sched_speed = 1000;
 170                                 break;
 171                         case SPEED_100:
 172                                 sched_speed = 100;
 173                                 break;
 174                         case SPEED_10:
 175                                 sched_speed = 10;
 176                                 break;
 177                         }
 178                         t1_sched_update_parms(adapter->sge, port_id, 0, sched_speed);
 179                 }
 180         }
 181 }
 182
 183 static void link_start(struct port_info *p)
 184 {
 185         struct cmac *mac = p->mac;
 186
 187         mac->ops->reset(mac);
 188         if (mac->ops->macaddress_set)
 189                 mac->ops->macaddress_set(mac, p->dev->dev_addr);
 190         t1_set_rxmode(p->dev);
 191         t1_link_start(p->phy, mac, &p->link_config);
 192         mac->ops->enable(mac, MAC_DIRECTION_RX | MAC_DIRECTION_TX);
 193 }
 194
 195 static void enable_hw_csum(struct adapter *adapter)
 196 {
 197         if (adapter->flags & TSO_CAPABLE)
 198                 t1_tp_set_ip_checksum_offload(adapter->tp, 1);  /* for TSO only */
 199         if (adapter->flags & UDP_CSUM_CAPABLE)
 200                 t1_tp_set_udp_checksum_offload(adapter->tp, 1);
 201         t1_tp_set_tcp_checksum_offload(adapter->tp, 1);
 202 }
 203
 204 /*
 205  * Things to do upon first use of a card.
 206  * This must run with the rtnl lock held.
 207  */
 208 static int cxgb_up(struct adapter *adapter)
 209 {
 210         int err = 0;
 211
 212         if (!(adapter->flags & FULL_INIT_DONE)) {
 213                 err = t1_init_hw_modules(adapter);
 214                 if (err)
 215                         goto out_err;
 216
 217                 enable_hw_csum(adapter);
 218                 adapter->flags |= FULL_INIT_DONE;
 219         }
 220
 221         t1_interrupts_clear(adapter);
 222
 223         adapter->params.has_msi = !disable_msi && !pci_enable_msi(adapter->pdev);
 224         err = request_irq(adapter->pdev->irq, t1_interrupt,
 225                           adapter->params.has_msi ? 0 : IRQF_SHARED,
 226                           adapter->name, adapter);
 227         if (err) {
 228                 if (adapter->params.has_msi)
 229                         pci_disable_msi(adapter->pdev);
 230
 231                 goto out_err;
 232         }
 233
 234         t1_sge_start(adapter->sge);
 235         t1_interrupts_enable(adapter);
 236 out_err:
 237         return err;
 238 }
 239
 240 /*
 241  * Release resources when all the ports have been stopped.
 242  */
 243 static void cxgb_down(struct adapter *adapter)
 244 {
 245         t1_sge_stop(adapter->sge);
 246         t1_interrupts_disable(adapter);
 247         free_irq(adapter->pdev->irq, adapter);
 248         if (adapter->params.has_msi)
 249                 pci_disable_msi(adapter->pdev);
 250 }
 251
 252 static int cxgb_open(struct net_device *dev)
 253 {
 254         int err;
 255         struct adapter *adapter = dev->ml_priv;
 256         int other_ports = adapter->open_device_map & PORT_MASK;
 257
 258         napi_enable(&adapter->napi);
 259         if (!adapter->open_device_map && (err = cxgb_up(adapter)) < 0) {
 260                 napi_disable(&adapter->napi);
 261                 return err;
 262         }
 263
 264         __set_bit(dev->if_port, &adapter->open_device_map);
 265         link_start(&adapter->port[dev->if_port]);
 266         netif_start_queue(dev);
 267         if (!other_ports && adapter->params.stats_update_period)
 268                 schedule_mac_stats_update(adapter,
 269                                           adapter->params.stats_update_period);
 270         return 0;
 271 }
 272
 273 static int cxgb_close(struct net_device *dev)
 274 {
 275         struct adapter *adapter = dev->ml_priv;
 276         struct port_info *p = &adapter->port[dev->if_port];
 277         struct cmac *mac = p->mac;
 278
 279         netif_stop_queue(dev);
 280         napi_disable(&adapter->napi);
 281         mac->ops->disable(mac, MAC_DIRECTION_TX | MAC_DIRECTION_RX);
 282         netif_carrier_off(dev);
 283
 284         clear_bit(dev->if_port, &adapter->open_device_map);
 285         if (adapter->params.stats_update_period &&
 286             !(adapter->open_device_map & PORT_MASK)) {
 287                 /* Stop statistics accumulation. */
 288                 smp_mb__after_clear_bit();
 289                 spin_lock(&adapter->work_lock);   /* sync with update task */
 290                 spin_unlock(&adapter->work_lock);
 291                 cancel_mac_stats_update(adapter);
 292         }
 293
 294         if (!adapter->open_device_map)
 295                 cxgb_down(adapter);
 296         return 0;
 297 }
 298
 299 static struct net_device_stats *t1_get_stats(struct net_device *dev)
 300 {
 301         struct adapter *adapter = dev->ml_priv;
 302         struct port_info *p = &adapter->port[dev->if_port];
 303         struct net_device_stats *ns = &p->netstats;
 304         const struct cmac_statistics *pstats;
 305
 306         /* Do a full update of the MAC stats */
 307         pstats = p->mac->ops->statistics_update(p->mac,
 308                                                 MAC_STATS_UPDATE_FULL);
 309
 310         ns->tx_packets = pstats->TxUnicastFramesOK +
 311                 pstats->TxMulticastFramesOK + pstats->TxBroadcastFramesOK;
 312
 313         ns->rx_packets = pstats->RxUnicastFramesOK +
 314                 pstats->RxMulticastFramesOK + pstats->RxBroadcastFramesOK;
 315
 316         ns->tx_bytes = pstats->TxOctetsOK;
 317         ns->rx_bytes = pstats->RxOctetsOK;
 318
 319         ns->tx_errors = pstats->TxLateCollisions + pstats->TxLengthErrors +
 320                 pstats->TxUnderrun + pstats->TxFramesAbortedDueToXSCollisions;
 321         ns->rx_errors = pstats->RxDataErrors + pstats->RxJabberErrors +
 322                 pstats->RxFCSErrors + pstats->RxAlignErrors +
 323                 pstats->RxSequenceErrors + pstats->RxFrameTooLongErrors +
 324                 pstats->RxSymbolErrors + pstats->RxRuntErrors;
 325
 326         ns->multicast  = pstats->RxMulticastFramesOK;
 327         ns->collisions = pstats->TxTotalCollisions;
 328
 329         /* detailed rx_errors */
 330         ns->rx_length_errors = pstats->RxFrameTooLongErrors +
 331                 pstats->RxJabberErrors;
 332         ns->rx_over_errors   = 0;
 333         ns->rx_crc_errors    = pstats->RxFCSErrors;
 334         ns->rx_frame_errors  = pstats->RxAlignErrors;
 335         ns->rx_fifo_errors   = 0;
 336         ns->rx_missed_errors = 0;
 337
 338         /* detailed tx_errors */
 339         ns->tx_aborted_errors   = pstats->TxFramesAbortedDueToXSCollisions;
 340         ns->tx_carrier_errors   = 0;
 341         ns->tx_fifo_errors      = pstats->TxUnderrun;
 342         ns->tx_heartbeat_errors = 0;
 343         ns->tx_window_errors    = pstats->TxLateCollisions;
 344         return ns;
 345 }
 346
 347 static u32 get_msglevel(struct net_device *dev)
 348 {
 349         struct adapter *adapter = dev->ml_priv;
 350
 351         return adapter->msg_enable;
 352 }
 353
 354 static void set_msglevel(struct net_device *dev, u32 val)
 355 {
 356         struct adapter *adapter = dev->ml_priv;
 357
 358         adapter->msg_enable = val;
 359 }
 360
 361 static char stats_strings[][ETH_GSTRING_LEN] = {
 362         "TxOctetsOK",
 363         "TxOctetsBad",
 364         "TxUnicastFramesOK",
 365         "TxMulticastFramesOK",
 366         "TxBroadcastFramesOK",
 367         "TxPauseFrames",
 368         "TxFramesWithDeferredXmissions",
 369         "TxLateCollisions",
 370         "TxTotalCollisions",
 371         "TxFramesAbortedDueToXSCollisions",
 372         "TxUnderrun",
 373         "TxLengthErrors",
 374         "TxInternalMACXmitError",
 375         "TxFramesWithExcessiveDeferral",
 376         "TxFCSErrors",
 377         "TxJumboFramesOk",
 378         "TxJumboOctetsOk",
 379
 380         "RxOctetsOK",
 381         "RxOctetsBad",
 382         "RxUnicastFramesOK",
 383         "RxMulticastFramesOK",
 384         "RxBroadcastFramesOK",
 385         "RxPauseFrames",
 386         "RxFCSErrors",
 387         "RxAlignErrors",
 388         "RxSymbolErrors",
 389         "RxDataErrors",
 390         "RxSequenceErrors",
 391         "RxRuntErrors",
 392         "RxJabberErrors",
 393         "RxInternalMACRcvError",
 394         "RxInRangeLengthErrors",
 395         "RxOutOfRangeLengthField",
 396         "RxFrameTooLongErrors",
 397         "RxJumboFramesOk",
 398         "RxJumboOctetsOk",
 399
 400         /* Port stats */
 401         "RxCsumGood",
 402         "TxCsumOffload",
 403         "TxTso",
 404         "RxVlan",
 405         "TxVlan",
 406         "TxNeedHeadroom",
 407
 408         /* Interrupt stats */
 409         "rx drops",
 410         "pure_rsps",
 411         "unhandled irqs",
 412         "respQ_empty",
 413         "respQ_overflow",
 414         "freelistQ_empty",
 415         "pkt_too_big",
 416         "pkt_mismatch",
 417         "cmdQ_full0",
 418         "cmdQ_full1",
 419
 420         "espi_DIP2ParityErr",
 421         "espi_DIP4Err",
 422         "espi_RxDrops",
 423         "espi_TxDrops",
 424         "espi_RxOvfl",
 425         "espi_ParityErr"
 426 };
 427
 428 #define T2_REGMAP_SIZE (3 * 1024)
 429
 430 static int get_regs_len(struct net_device *dev)
 431 {
 432         return T2_REGMAP_SIZE;
 433 }
 434
 435 static void get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
 436 {
 437         struct adapter *adapter = dev->ml_priv;
 438
 439         strcpy(info->driver, DRV_NAME);
 440         strcpy(info->version, DRV_VERSION);
 441         strcpy(info->fw_version, "N/A");
 442         strcpy(info->bus_info, pci_name(adapter->pdev));
 443 }
 444
 445 static int get_sset_count(struct net_device *dev, int sset)
 446 {
 447         switch (sset) {
 448         case ETH_SS_STATS:
 449                 return ARRAY_SIZE(stats_strings);
 450         default:
 451                 return -EOPNOTSUPP;
 452         }
 453 }
 454
 455 static void get_strings(struct net_device *dev, u32 stringset, u8 *data)
 456 {
 457         if (stringset == ETH_SS_STATS)
 458                 memcpy(data, stats_strings, sizeof(stats_strings));
 459 }
 460
 461 static void get_stats(struct net_device *dev, struct ethtool_stats *stats,
 462                       u64 *data)
 463 {
 464         struct adapter *adapter = dev->ml_priv;
 465         struct cmac *mac = adapter->port[dev->if_port].mac;
 466         const struct cmac_statistics *s;
 467         const struct sge_intr_counts *t;
 468         struct sge_port_stats ss;
 469
 470         s = mac->ops->statistics_update(mac, MAC_STATS_UPDATE_FULL);
 471         t = t1_sge_get_intr_counts(adapter->sge);
 472         t1_sge_get_port_stats(adapter->sge, dev->if_port, &ss);
 473
 474         *data++ = s->TxOctetsOK;
 475         *data++ = s->TxOctetsBad;
 476         *data++ = s->TxUnicastFramesOK;
 477         *data++ = s->TxMulticastFramesOK;
 478         *data++ = s->TxBroadcastFramesOK;
 479         *data++ = s->TxPauseFrames;
 480         *data++ = s->TxFramesWithDeferredXmissions;
 481         *data++ = s->TxLateCollisions;
 482         *data++ = s->TxTotalCollisions;
 483         *data++ = s->TxFramesAbortedDueToXSCollisions;
 484         *data++ = s->TxUnderrun;
 485         *data++ = s->TxLengthErrors;
 486         *data++ = s->TxInternalMACXmitError;
 487         *data++ = s->TxFramesWithExcessiveDeferral;
 488         *data++ = s->TxFCSErrors;
 489         *data++ = s->TxJumboFramesOK;
 490         *data++ = s->TxJumboOctetsOK;
 491
 492         *data++ = s->RxOctetsOK;
 493         *data++ = s->RxOctetsBad;
 494         *data++ = s->RxUnicastFramesOK;
 495         *data++ = s->RxMulticastFramesOK;
 496         *data++ = s->RxBroadcastFramesOK;
 497         *data++ = s->RxPauseFrames;
 498         *data++ = s->RxFCSErrors;
 499         *data++ = s->RxAlignErrors;
 500         *data++ = s->RxSymbolErrors;
 501         *data++ = s->RxDataErrors;
 502         *data++ = s->RxSequenceErrors;
 503         *data++ = s->RxRuntErrors;
 504         *data++ = s->RxJabberErrors;
 505         *data++ = s->RxInternalMACRcvError;
 506         *data++ = s->RxInRangeLengthErrors;
 507         *data++ = s->RxOutOfRangeLengthField;
 508         *data++ = s->RxFrameTooLongErrors;
 509         *data++ = s->RxJumboFramesOK;
 510         *data++ = s->RxJumboOctetsOK;
 511
 512         *data++ = ss.rx_cso_good;
 513         *data++ = ss.tx_cso;
 514         *data++ = ss.tx_tso;
 515         *data++ = ss.vlan_xtract;
 516         *data++ = ss.vlan_insert;
 517         *data++ = ss.tx_need_hdrroom;
 518
 519         *data++ = t->rx_drops;
 520         *data++ = t->pure_rsps;
 521         *data++ = t->unhandled_irqs;
 522         *data++ = t->respQ_empty;
 523         *data++ = t->respQ_overflow;
 524         *data++ = t->freelistQ_empty;
 525         *data++ = t->pkt_too_big;
 526         *data++ = t->pkt_mismatch;
 527         *data++ = t->cmdQ_full[0];
 528         *data++ = t->cmdQ_full[1];
 529
 530         if (adapter->espi) {
 531                 const struct espi_intr_counts *e;
 532
 533                 e = t1_espi_get_intr_counts(adapter->espi);
 534                 *data++ = e->DIP2_parity_err;
 535                 *data++ = e->DIP4_err;
 536                 *data++ = e->rx_drops;
 537                 *data++ = e->tx_drops;
 538                 *data++ = e->rx_ovflw;
 539                 *data++ = e->parity_err;
 540         }
 541 }
 542
 543 static inline void reg_block_dump(struct adapter *ap, void *buf,
 544                                   unsigned int start, unsigned int end)
 545 {
 546         u32 *p = buf + start;
 547
 548         for ( ; start <= end; start += sizeof(u32))
 549                 *p++ = readl(ap->regs + start);
 550 }
 551
 552 static void get_regs(struct net_device *dev, struct ethtool_regs *regs,
 553                      void *buf)
 554 {
 555         struct adapter *ap = dev->ml_priv;
 556
 557         /*
 558          * Version scheme: bits 0..9: chip version, bits 10..15: chip revision
 559          */
 560         regs->version = 2;
 561
 562         memset(buf, 0, T2_REGMAP_SIZE);
 563         reg_block_dump(ap, buf, 0, A_SG_RESPACCUTIMER);
 564         reg_block_dump(ap, buf, A_MC3_CFG, A_MC4_INT_CAUSE);
 565         reg_block_dump(ap, buf, A_TPI_ADDR, A_TPI_PAR);
 566         reg_block_dump(ap, buf, A_TP_IN_CONFIG, A_TP_TX_DROP_COUNT);
 567         reg_block_dump(ap, buf, A_RAT_ROUTE_CONTROL, A_RAT_INTR_CAUSE);
 568         reg_block_dump(ap, buf, A_CSPI_RX_AE_WM, A_CSPI_INTR_ENABLE);
 569         reg_block_dump(ap, buf, A_ESPI_SCH_TOKEN0, A_ESPI_GOSTAT);
 570         reg_block_dump(ap, buf, A_ULP_ULIMIT, A_ULP_PIO_CTRL);
 571         reg_block_dump(ap, buf, A_PL_ENABLE, A_PL_CAUSE);
 572         reg_block_dump(ap, buf, A_MC5_CONFIG, A_MC5_MASK_WRITE_CMD);
 573 }
 574
 575 static int get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
 576 {
 577         struct adapter *adapter = dev->ml_priv;
 578         struct port_info *p = &adapter->port[dev->if_port];
 579
 580         cmd->supported = p->link_config.supported;
 581         cmd->advertising = p->link_config.advertising;
 582
 583         if (netif_carrier_ok(dev)) {
 584                 cmd->speed = p->link_config.speed;
 585                 cmd->duplex = p->link_config.duplex;
 586         } else {
 587                 cmd->speed = -1;
 588                 cmd->duplex = -1;
 589         }
 590
 591         cmd->port = (cmd->supported & SUPPORTED_TP) ? PORT_TP : PORT_FIBRE;
 592         cmd->phy_address = p->phy->mdio.prtad;
 593         cmd->transceiver = XCVR_EXTERNAL;
 594         cmd->autoneg = p->link_config.autoneg;
 595         cmd->maxtxpkt = 0;
 596         cmd->maxrxpkt = 0;
 597         return 0;
 598 }
 599
 600 static int speed_duplex_to_caps(int speed, int duplex)
 601 {
 602         int cap = 0;
 603
 604         switch (speed) {
 605         case SPEED_10:
 606                 if (duplex == DUPLEX_FULL)
 607                         cap = SUPPORTED_10baseT_Full;
 608                 else
 609                         cap = SUPPORTED_10baseT_Half;
 610                 break;
 611         case SPEED_100:
 612                 if (duplex == DUPLEX_FULL)
 613                         cap = SUPPORTED_100baseT_Full;
 614                 else
 615                         cap = SUPPORTED_100baseT_Half;
 616                 break;
 617         case SPEED_1000:
 618                 if (duplex == DUPLEX_FULL)
 619                         cap = SUPPORTED_1000baseT_Full;
 620                 else
 621                         cap = SUPPORTED_1000baseT_Half;
 622                 break;
 623         case SPEED_10000:
 624                 if (duplex == DUPLEX_FULL)
 625                         cap = SUPPORTED_10000baseT_Full;
 626         }
 627         return cap;
 628 }
 629
 630 #define ADVERTISED_MASK (ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full | \
 631                       ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full | \
 632                       ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full | \
 633                       ADVERTISED_10000baseT_Full)
 634
 635 static int set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
 636 {
 637         struct adapter *adapter = dev->ml_priv;
 638         struct port_info *p = &adapter->port[dev->if_port];
 639         struct link_config *lc = &p->link_config;
 640
 641         if (!(lc->supported & SUPPORTED_Autoneg))
 642                 return -EOPNOTSUPP;             /* can't change speed/duplex */
 643
 644         if (cmd->autoneg == AUTONEG_DISABLE) {
 645                 int cap = speed_duplex_to_caps(cmd->speed, cmd->duplex);
 646
 647                 if (!(lc->supported & cap) || cmd->speed == SPEED_1000)
 648                         return -EINVAL;
 649                 lc->requested_speed = cmd->speed;
 650                 lc->requested_duplex = cmd->duplex;
 651                 lc->advertising = 0;
 652         } else {
 653                 cmd->advertising &= ADVERTISED_MASK;
 654                 if (cmd->advertising & (cmd->advertising - 1))
 655                         cmd->advertising = lc->supported;
 656                 cmd->advertising &= lc->supported;
 657                 if (!cmd->advertising)
 658                         return -EINVAL;
 659                 lc->requested_speed = SPEED_INVALID;
 660                 lc->requested_duplex = DUPLEX_INVALID;
 661                 lc->advertising = cmd->advertising | ADVERTISED_Autoneg;
 662         }
 663         lc->autoneg = cmd->autoneg;
 664         if (netif_running(dev))
 665                 t1_link_start(p->phy, p->mac, lc);
 666         return 0;
 667 }
 668
 669 static void get_pauseparam(struct net_device *dev,
 670                            struct ethtool_pauseparam *epause)
 671 {
 672         struct adapter *adapter = dev->ml_priv;
 673         struct port_info *p = &adapter->port[dev->if_port];
 674
 675         epause->autoneg = (p->link_config.requested_fc & PAUSE_AUTONEG) != 0;
 676         epause->rx_pause = (p->link_config.fc & PAUSE_RX) != 0;
 677         epause->tx_pause = (p->link_config.fc & PAUSE_TX) != 0;
 678 }
 679
 680 static int set_pauseparam(struct net_device *dev,
 681                           struct ethtool_pauseparam *epause)
 682 {
 683         struct adapter *adapter = dev->ml_priv;
 684         struct port_info *p = &adapter->port[dev->if_port];
 685         struct link_config *lc = &p->link_config;
 686
 687         if (epause->autoneg == AUTONEG_DISABLE)
 688                 lc->requested_fc = 0;
 689         else if (lc->supported & SUPPORTED_Autoneg)
 690                 lc->requested_fc = PAUSE_AUTONEG;
 691         else
 692                 return -EINVAL;
 693
 694         if (epause->rx_pause)
 695                 lc->requested_fc |= PAUSE_RX;
 696         if (epause->tx_pause)
 697                 lc->requested_fc |= PAUSE_TX;
 698         if (lc->autoneg == AUTONEG_ENABLE) {
 699                 if (netif_running(dev))
 700                         t1_link_start(p->phy, p->mac, lc);
 701         } else {
 702                 lc->fc = lc->requested_fc & (PAUSE_RX | PAUSE_TX);
 703                 if (netif_running(dev))
 704                         p->mac->ops->set_speed_duplex_fc(p->mac, -1, -1,
 705                                                          lc->fc);
 706         }
 707         return 0;
 708 }
 709
 710 static u32 get_rx_csum(struct net_device *dev)
 711 {
 712         struct adapter *adapter = dev->ml_priv;
 713
 714         return (adapter->flags & RX_CSUM_ENABLED) != 0;
 715 }
 716
 717 static int set_rx_csum(struct net_device *dev, u32 data)
 718 {
 719         struct adapter *adapter = dev->ml_priv;
 720
 721         if (data)
 722                 adapter->flags |= RX_CSUM_ENABLED;
 723         else
 724                 adapter->flags &= ~RX_CSUM_ENABLED;
 725         return 0;
 726 }
 727
 728 static int set_tso(struct net_device *dev, u32 value)
 729 {
 730         struct adapter *adapter = dev->ml_priv;
 731
 732         if (!(adapter->flags & TSO_CAPABLE))
 733                 return value ? -EOPNOTSUPP : 0;
 734         return ethtool_op_set_tso(dev, value);
 735 }
 736
 737 static void get_sge_param(struct net_device *dev, struct ethtool_ringparam *e)
 738 {
 739         struct adapter *adapter = dev->ml_priv;
 740         int jumbo_fl = t1_is_T1B(adapter) ? 1 : 0;
 741
 742         e->rx_max_pending = MAX_RX_BUFFERS;
 743         e->rx_mini_max_pending = 0;
 744         e->rx_jumbo_max_pending = MAX_RX_JUMBO_BUFFERS;
 745         e->tx_max_pending = MAX_CMDQ_ENTRIES;
 746
 747         e->rx_pending = adapter->params.sge.freelQ_size[!jumbo_fl];
 748         e->rx_mini_pending = 0;
 749         e->rx_jumbo_pending = adapter->params.sge.freelQ_size[jumbo_fl];
 750         e->tx_pending = adapter->params.sge.cmdQ_size[0];
 751 }
 752
 753 static int set_sge_param(struct net_device *dev, struct ethtool_ringparam *e)
 754 {
 755         struct adapter *adapter = dev->ml_priv;
 756         int jumbo_fl = t1_is_T1B(adapter) ? 1 : 0;
 757
 758         if (e->rx_pending > MAX_RX_BUFFERS || e->rx_mini_pending ||
 759             e->rx_jumbo_pending > MAX_RX_JUMBO_BUFFERS ||
 760             e->tx_pending > MAX_CMDQ_ENTRIES ||
 761             e->rx_pending < MIN_FL_ENTRIES ||
 762             e->rx_jumbo_pending < MIN_FL_ENTRIES ||
 763             e->tx_pending < (adapter->params.nports + 1) * (MAX_SKB_FRAGS + 1))
 764                 return -EINVAL;
 765
 766         if (adapter->flags & FULL_INIT_DONE)
 767                 return -EBUSY;
 768
 769         adapter->params.sge.freelQ_size[!jumbo_fl] = e->rx_pending;
 770         adapter->params.sge.freelQ_size[jumbo_fl] = e->rx_jumbo_pending;
 771         adapter->params.sge.cmdQ_size[0] = e->tx_pending;
 772         adapter->params.sge.cmdQ_size[1] = e->tx_pending > MAX_CMDQ1_ENTRIES ?
 773                 MAX_CMDQ1_ENTRIES : e->tx_pending;
 774         return 0;
 775 }
 776
 777 static int set_coalesce(struct net_device *dev, struct ethtool_coalesce *c)
 778 {
 779         struct adapter *adapter = dev->ml_priv;
 780
 781         adapter->params.sge.rx_coalesce_usecs = c->rx_coalesce_usecs;
 782         adapter->params.sge.coalesce_enable = c->use_adaptive_rx_coalesce;
 783         adapter->params.sge.sample_interval_usecs = c->rate_sample_interval;
 784         t1_sge_set_coalesce_params(adapter->sge, &adapter->params.sge);
 785         return 0;
 786 }
 787
 788 static int get_coalesce(struct net_device *dev, struct ethtool_coalesce *c)
 789 {
 790         struct adapter *adapter = dev->ml_priv;
 791
 792         c->rx_coalesce_usecs = adapter->params.sge.rx_coalesce_usecs;
 793         c->rate_sample_interval = adapter->params.sge.sample_interval_usecs;
 794         c->use_adaptive_rx_coalesce = adapter->params.sge.coalesce_enable;
 795         return 0;
 796 }
 797
 798 static int get_eeprom_len(struct net_device *dev)
 799 {
 800         struct adapter *adapter = dev->ml_priv;
 801
 802         return t1_is_asic(adapter) ? EEPROM_SIZE : 0;
 803 }
 804
 805 #define EEPROM_MAGIC(ap) \
 806         (PCI_VENDOR_ID_CHELSIO | ((ap)->params.chip_version << 16))
 807
 808 static int get_eeprom(struct net_device *dev, struct ethtool_eeprom *e,
 809                       u8 *data)
 810 {
 811         int i;
 812         u8 buf[EEPROM_SIZE] __attribute__((aligned(4)));
 813         struct adapter *adapter = dev->ml_priv;
 814
 815         e->magic = EEPROM_MAGIC(adapter);
 816         for (i = e->offset & ~3; i < e->offset + e->len; i += sizeof(u32))
 817                 t1_seeprom_read(adapter, i, (__le32 *)&buf[i]);
 818         memcpy(data, buf + e->offset, e->len);
 819         return 0;
 820 }
 821
 822 static const struct ethtool_ops t1_ethtool_ops = {
 823         .get_settings      = get_settings,
 824         .set_settings      = set_settings,
 825         .get_drvinfo       = get_drvinfo,
 826         .get_msglevel      = get_msglevel,
 827         .set_msglevel      = set_msglevel,
 828         .get_ringparam     = get_sge_param,
 829         .set_ringparam     = set_sge_param,
 830         .get_coalesce      = get_coalesce,
 831         .set_coalesce      = set_coalesce,
 832         .get_eeprom_len    = get_eeprom_len,
 833         .get_eeprom        = get_eeprom,
 834         .get_pauseparam    = get_pauseparam,
 835         .set_pauseparam    = set_pauseparam,
 836         .get_rx_csum       = get_rx_csum,
 837         .set_rx_csum       = set_rx_csum,
 838         .set_tx_csum       = ethtool_op_set_tx_csum,
 839         .set_sg            = ethtool_op_set_sg,
 840         .get_link          = ethtool_op_get_link,
 841         .get_strings       = get_strings,
 842         .get_sset_count    = get_sset_count,
 843         .get_ethtool_stats = get_stats,
 844         .get_regs_len      = get_regs_len,
 845         .get_regs          = get_regs,
 846         .set_tso           = set_tso,
 847 };
 848
 849 static int t1_ioctl(struct net_device *dev, struct ifreq *req, int cmd)
 850 {
 851         struct adapter *adapter = dev->ml_priv;
 852         struct mdio_if_info *mdio = &adapter->port[dev->if_port].phy->mdio;
 853
 854         return mdio_mii_ioctl(mdio, if_mii(req), cmd);
 855 }
 856
 857 static int t1_change_mtu(struct net_device *dev, int new_mtu)
 858 {
 859         int ret;
 860         struct adapter *adapter = dev->ml_priv;
 861         struct cmac *mac = adapter->port[dev->if_port].mac;
 862
 863         if (!mac->ops->set_mtu)
 864                 return -EOPNOTSUPP;
 865         if (new_mtu < 68)
 866                 return -EINVAL;
 867         if ((ret = mac->ops->set_mtu(mac, new_mtu)))
 868                 return ret;
 869         dev->mtu = new_mtu;
 870         return 0;
 871 }
 872
 873 static int t1_set_mac_addr(struct net_device *dev, void *p)
 874 {
 875         struct adapter *adapter = dev->ml_priv;
 876         struct cmac *mac = adapter->port[dev->if_port].mac;
 877         struct sockaddr *addr = p;
 878
 879         if (!mac->ops->macaddress_set)
 880                 return -EOPNOTSUPP;
 881
 882         memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
 883         mac->ops->macaddress_set(mac, dev->dev_addr);
 884         return 0;
 885 }
 886
 887 #if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
 888 static void t1_vlan_rx_register(struct net_device *dev,
 889                                    struct vlan_group *grp)
 890 {
 891         struct adapter *adapter = dev->ml_priv;
 892
 893         spin_lock_irq(&adapter->async_lock);
 894         adapter->vlan_grp = grp;
 895         t1_set_vlan_accel(adapter, grp != NULL);
 896         spin_unlock_irq(&adapter->async_lock);
 897 }
 898 #endif
 899
 900 #ifdef CONFIG_NET_POLL_CONTROLLER
 901 static void t1_netpoll(struct net_device *dev)
 902 {
 903         unsigned long flags;
 904         struct adapter *adapter = dev->ml_priv;
 905
 906         local_irq_save(flags);
 907         t1_interrupt(adapter->pdev->irq, adapter);
 908         local_irq_restore(flags);
 909 }
 910 #endif
 911
 912 /*
 913  * Periodic accumulation of MAC statistics.  This is used only if the MAC
 914  * does not have any other way to prevent stats counter overflow.
 915  */
 916 static void mac_stats_task(struct work_struct *work)
 917 {
 918         int i;
 919         struct adapter *adapter =
 920                 container_of(work, struct adapter, stats_update_task.work);
 921
 922         for_each_port(adapter, i) {
 923                 struct port_info *p = &adapter->port[i];
 924
 925                 if (netif_running(p->dev))
 926                         p->mac->ops->statistics_update(p->mac,
 927                                                        MAC_STATS_UPDATE_FAST);
 928         }
 929
 930         /* Schedule the next statistics update if any port is active. */
 931         spin_lock(&adapter->work_lock);
 932         if (adapter->open_device_map & PORT_MASK)
 933                 schedule_mac_stats_update(adapter,
 934                                           adapter->params.stats_update_period);
 935         spin_unlock(&adapter->work_lock);
 936 }
 937
 938 /*
 939  * Processes elmer0 external interrupts in process context.
 940  */
 941 static void ext_intr_task(struct work_struct *work)
 942 {
 943         struct adapter *adapter =
 944                 container_of(work, struct adapter, ext_intr_handler_task);
 945
 946         t1_elmer0_ext_intr_handler(adapter);
 947
 948         /* Now reenable external interrupts */
 949         spin_lock_irq(&adapter->async_lock);
 950         adapter->slow_intr_mask |= F_PL_INTR_EXT;
 951         writel(F_PL_INTR_EXT, adapter->regs + A_PL_CAUSE);
 952         writel(adapter->slow_intr_mask | F_PL_INTR_SGE_DATA,
 953                    adapter->regs + A_PL_ENABLE);
 954         spin_unlock_irq(&adapter->async_lock);
 955 }
 956
 957 /*
 958  * Interrupt-context handler for elmer0 external interrupts.
 959  */
 960 void t1_elmer0_ext_intr(struct adapter *adapter)
 961 {
 962         /*
 963          * Schedule a task to handle external interrupts as we require
 964          * a process context.  We disable EXT interrupts in the interim
 965          * and let the task reenable them when it's done.
 966          */
 967         adapter->slow_intr_mask &= ~F_PL_INTR_EXT;
 968         writel(adapter->slow_intr_mask | F_PL_INTR_SGE_DATA,
 969                    adapter->regs + A_PL_ENABLE);
 970         schedule_work(&adapter->ext_intr_handler_task);
 971 }
 972
 973 void t1_fatal_err(struct adapter *adapter)
 974 {
 975         if (adapter->flags & FULL_INIT_DONE) {
 976                 t1_sge_stop(adapter->sge);
 977                 t1_interrupts_disable(adapter);
 978         }
 979         CH_ALERT("%s: encountered fatal error, operation suspended\n",
 980                  adapter->name);
 981 }
 982
 983 static const struct net_device_ops cxgb_netdev_ops = {
 984         .ndo_open               = cxgb_open,
 985         .ndo_stop               = cxgb_close,
 986         .ndo_start_xmit         = t1_start_xmit,
 987         .ndo_get_stats          = t1_get_stats,
 988         .ndo_validate_addr      = eth_validate_addr,
 989         .ndo_set_multicast_list = t1_set_rxmode,
 990         .ndo_do_ioctl           = t1_ioctl,
 991         .ndo_change_mtu         = t1_change_mtu,
 992         .ndo_set_mac_address    = t1_set_mac_addr,
 993 #if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
 994         .ndo_vlan_rx_register   = t1_vlan_rx_register,
 995 #endif
 996 #ifdef CONFIG_NET_POLL_CONTROLLER
 997         .ndo_poll_controller    = t1_netpoll,
 998 #endif
 999 };
1000
1001 static int __devinit init_one(struct pci_dev *pdev,
1002                               const struct pci_device_id *ent)
1003 {
1004         static int version_printed;
1005
1006         int i, err, pci_using_dac = 0;
1007         unsigned long mmio_start, mmio_len;
1008         const struct board_info *bi;
1009         struct adapter *adapter = NULL;
1010         struct port_info *pi;
1011
1012         if (!version_printed) {
1013                 printk(KERN_INFO "%s - version %s\n", DRV_DESCRIPTION,
1014                        DRV_VERSION);
1015                 ++version_printed;
1016         }
1017
1018         err = pci_enable_device(pdev);
1019         if (err)
1020                 return err;
1021
1022         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1023                 CH_ERR("%s: cannot find PCI device memory base address\n",
1024                        pci_name(pdev));
1025                 err = -ENODEV;
1026                 goto out_disable_pdev;
1027         }
1028
1029         if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
1030                 pci_using_dac = 1;
1031
1032                 if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64))) {
1033                         CH_ERR("%s: unable to obtain 64-bit DMA for "
1034                                "consistent allocations\n", pci_name(pdev));
1035                         err = -ENODEV;
1036                         goto out_disable_pdev;
1037                 }
1038
1039         } else if ((err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) != 0) {
1040                 CH_ERR("%s: no usable DMA configuration\n", pci_name(pdev));
1041                 goto out_disable_pdev;
1042         }
1043
1044         err = pci_request_regions(pdev, DRV_NAME);
1045         if (err) {
1046                 CH_ERR("%s: cannot obtain PCI resources\n", pci_name(pdev));
1047                 goto out_disable_pdev;
1048         }
1049
1050         pci_set_master(pdev);
1051
1052         mmio_start = pci_resource_start(pdev, 0);
1053         mmio_len = pci_resource_len(pdev, 0);
1054         bi = t1_get_board_info(ent->driver_data);
1055
1056         for (i = 0; i < bi->port_number; ++i) {
1057                 struct net_device *netdev;
1058
1059                 netdev = alloc_etherdev(adapter ? 0 : sizeof(*adapter));
1060                 if (!netdev) {
1061                         err = -ENOMEM;
1062                         goto out_free_dev;
1063                 }
1064
1065                 SET_NETDEV_DEV(netdev, &pdev->dev);
1066
1067                 if (!adapter) {
1068                         adapter = netdev_priv(netdev);
1069                         adapter->pdev = pdev;
1070                         adapter->port[0].dev = netdev;  /* so we don't leak it */
1071
1072                         adapter->regs = ioremap(mmio_start, mmio_len);
1073                         if (!adapter->regs) {
1074                                 CH_ERR("%s: cannot map device registers\n",
1075                                        pci_name(pdev));
1076                                 err = -ENOMEM;
1077                                 goto out_free_dev;
1078                         }
1079
1080                         if (t1_get_board_rev(adapter, bi, &adapter->params)) {
1081                                 err = -ENODEV;    /* Can't handle this chip rev */
1082                                 goto out_free_dev;
1083                         }
1084
1085                         adapter->name = pci_name(pdev);
1086                         adapter->msg_enable = dflt_msg_enable;
1087                         adapter->mmio_len = mmio_len;
1088
1089                         spin_lock_init(&adapter->tpi_lock);
1090                         spin_lock_init(&adapter->work_lock);
1091                         spin_lock_init(&adapter->async_lock);
1092                         spin_lock_init(&adapter->mac_lock);
1093
1094                         INIT_WORK(&adapter->ext_intr_handler_task,
1095                                   ext_intr_task);
1096                         INIT_DELAYED_WORK(&adapter->stats_update_task,
1097                                           mac_stats_task);
1098
1099                         pci_set_drvdata(pdev, netdev);
1100                 }
1101
1102                 pi = &adapter->port[i];
1103                 pi->dev = netdev;
1104                 netif_carrier_off(netdev);
1105                 netdev->irq = pdev->irq;
1106                 netdev->if_port = i;
1107                 netdev->mem_start = mmio_start;
1108                 netdev->mem_end = mmio_start + mmio_len - 1;
1109                 netdev->ml_priv = adapter;
1110                 netdev->features |= NETIF_F_SG | NETIF_F_IP_CSUM;
1111                 netdev->features |= NETIF_F_LLTX;
1112
1113                 adapter->flags |= RX_CSUM_ENABLED | TCP_CSUM_CAPABLE;
1114                 if (pci_using_dac)
1115                         netdev->features |= NETIF_F_HIGHDMA;
1116                 if (vlan_tso_capable(adapter)) {
1117 #if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
1118                         adapter->flags |= VLAN_ACCEL_CAPABLE;
1119                         netdev->features |=
1120                                 NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
1121 #endif
1122
1123                         /* T204: disable TSO */
1124                         if (!(is_T2(adapter)) || bi->port_number != 4) {
1125                                 adapter->flags |= TSO_CAPABLE;
1126                                 netdev->features |= NETIF_F_TSO;
1127                         }
1128                 }
1129
1130                 netdev->netdev_ops = &cxgb_netdev_ops;
1131                 netdev->hard_header_len += (adapter->flags & TSO_CAPABLE) ?
1132                         sizeof(struct cpl_tx_pkt_lso) : sizeof(struct cpl_tx_pkt);
1133
1134                 netif_napi_add(netdev, &adapter->napi, t1_poll, 64);
1135
1136                 SET_ETHTOOL_OPS(netdev, &t1_ethtool_ops);
1137         }
1138
1139         if (t1_init_sw_modules(adapter, bi) < 0) {
1140                 err = -ENODEV;
1141                 goto out_free_dev;
1142         }
1143
1144         /*
1145          * The card is now ready to go.  If any errors occur during device
1146          * registration we do not fail the whole card but rather proceed only
1147          * with the ports we manage to register successfully.  However we must
1148          * register at least one net device.
1149          */
1150         for (i = 0; i < bi->port_number; ++i) {
1151                 err = register_netdev(adapter->port[i].dev);
1152                 if (err)
1153                         CH_WARN("%s: cannot register net device %s, skipping\n",
1154                                 pci_name(pdev), adapter->port[i].dev->name);
1155                 else {
1156                         /*
1157                          * Change the name we use for messages to the name of
1158                          * the first successfully registered interface.
1159                          */
1160                         if (!adapter->registered_device_map)
1161                                 adapter->name = adapter->port[i].dev->name;
1162
1163                         __set_bit(i, &adapter->registered_device_map);
1164                 }
1165         }
1166         if (!adapter->registered_device_map) {
1167                 CH_ERR("%s: could not register any net devices\n",
1168                        pci_name(pdev));
1169                 goto out_release_adapter_res;
1170         }
1171
1172         printk(KERN_INFO "%s: %s (rev %d), %s %dMHz/%d-bit\n", adapter->name,
1173                bi->desc, adapter->params.chip_revision,
1174                adapter->params.pci.is_pcix ? "PCIX" : "PCI",
1175                adapter->params.pci.speed, adapter->params.pci.width);
1176
1177         /*
1178          * Set the T1B ASIC and memory clocks.
1179          */
1180         if (t1powersave)
1181                 adapter->t1powersave = LCLOCK;  /* HW default is powersave mode. */
1182         else
1183                 adapter->t1powersave = HCLOCK;
1184         if (t1_is_T1B(adapter))
1185                 t1_clock(adapter, t1powersave);
1186
1187         return 0;
1188
1189 out_release_adapter_res:
1190         t1_free_sw_modules(adapter);
1191 out_free_dev:
1192         if (adapter) {
1193                 if (adapter->regs)
1194                         iounmap(adapter->regs);
1195                 for (i = bi->port_number - 1; i >= 0; --i)
1196                         if (adapter->port[i].dev)
1197                                 free_netdev(adapter->port[i].dev);
1198         }
1199         pci_release_regions(pdev);
1200 out_disable_pdev:
1201         pci_disable_device(pdev);
1202         pci_set_drvdata(pdev, NULL);
1203         return err;
1204 }
1205
1206 static void bit_bang(struct adapter *adapter, int bitdata, int nbits)
1207 {
1208         int data;
1209         int i;
1210         u32 val;
1211
1212         enum {
1213                 S_CLOCK = 1 << 3,
1214                 S_DATA = 1 << 4
1215         };
1216
1217         for (i = (nbits - 1); i > -1; i--) {
1218
1219                 udelay(50);
1220
1221                 data = ((bitdata >> i) & 0x1);
1222                 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1223
1224                 if (data)
1225                         val |= S_DATA;
1226                 else
1227                         val &= ~S_DATA;
1228
1229                 udelay(50);
1230
1231                 /* Set SCLOCK low */
1232                 val &= ~S_CLOCK;
1233                 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1234
1235                 udelay(50);
1236
1237                 /* Write SCLOCK high */
1238                 val |= S_CLOCK;
1239                 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1240
1241         }
1242 }
1243
1244 static int t1_clock(struct adapter *adapter, int mode)
1245 {
1246         u32 val;
1247         int M_CORE_VAL;
1248         int M_MEM_VAL;
1249
1250         enum {
1251                 M_CORE_BITS     = 9,
1252                 T_CORE_VAL      = 0,
1253                 T_CORE_BITS     = 2,
1254                 N_CORE_VAL      = 0,
1255                 N_CORE_BITS     = 2,
1256                 M_MEM_BITS      = 9,
1257                 T_MEM_VAL       = 0,
1258                 T_MEM_BITS      = 2,
1259                 N_MEM_VAL       = 0,
1260                 N_MEM_BITS      = 2,
1261                 NP_LOAD         = 1 << 17,
1262                 S_LOAD_MEM      = 1 << 5,
1263                 S_LOAD_CORE     = 1 << 6,
1264                 S_CLOCK         = 1 << 3
1265         };
1266
1267         if (!t1_is_T1B(adapter))
1268                 return -ENODEV; /* Can't re-clock this chip. */
1269
1270         if (mode & 2)
1271                 return 0;       /* show current mode. */
1272
1273         if ((adapter->t1powersave & 1) == (mode & 1))
1274                 return -EALREADY;       /* ASIC already running in mode. */
1275
1276         if ((mode & 1) == HCLOCK) {
1277                 M_CORE_VAL = 0x14;
1278                 M_MEM_VAL = 0x18;
1279                 adapter->t1powersave = HCLOCK;  /* overclock */
1280         } else {
1281                 M_CORE_VAL = 0xe;
1282                 M_MEM_VAL = 0x10;
1283                 adapter->t1powersave = LCLOCK;  /* underclock */
1284         }
1285
1286         /* Don't interrupt this serial stream! */
1287         spin_lock(&adapter->tpi_lock);
1288
1289         /* Initialize for ASIC core */
1290         __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1291         val |= NP_LOAD;
1292         udelay(50);
1293         __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1294         udelay(50);
1295         __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1296         val &= ~S_LOAD_CORE;
1297         val &= ~S_CLOCK;
1298         __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1299         udelay(50);
1300
1301         /* Serial program the ASIC clock synthesizer */
1302         bit_bang(adapter, T_CORE_VAL, T_CORE_BITS);
1303         bit_bang(adapter, N_CORE_VAL, N_CORE_BITS);
1304         bit_bang(adapter, M_CORE_VAL, M_CORE_BITS);
1305         udelay(50);
1306
1307         /* Finish ASIC core */
1308         __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1309         val |= S_LOAD_CORE;
1310         udelay(50);
1311         __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1312         udelay(50);
1313         __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1314         val &= ~S_LOAD_CORE;
1315         udelay(50);
1316         __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1317         udelay(50);
1318
1319         /* Initialize for memory */
1320         __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1321         val |= NP_LOAD;
1322         udelay(50);
1323         __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1324         udelay(50);
1325         __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1326         val &= ~S_LOAD_MEM;
1327         val &= ~S_CLOCK;
1328         udelay(50);
1329         __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1330         udelay(50);
1331
1332         /* Serial program the memory clock synthesizer */
1333         bit_bang(adapter, T_MEM_VAL, T_MEM_BITS);
1334         bit_bang(adapter, N_MEM_VAL, N_MEM_BITS);
1335         bit_bang(adapter, M_MEM_VAL, M_MEM_BITS);
1336         udelay(50);
1337
1338         /* Finish memory */
1339         __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1340         val |= S_LOAD_MEM;
1341         udelay(50);
1342         __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1343         udelay(50);
1344         __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1345         val &= ~S_LOAD_MEM;
1346         udelay(50);
1347         __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1348
1349         spin_unlock(&adapter->tpi_lock);
1350
1351         return 0;
1352 }
1353
1354 static inline void t1_sw_reset(struct pci_dev *pdev)
1355 {
1356         pci_write_config_dword(pdev, A_PCICFG_PM_CSR, 3);
1357         pci_write_config_dword(pdev, A_PCICFG_PM_CSR, 0);
1358 }
1359
1360 static void __devexit remove_one(struct pci_dev *pdev)
1361 {
1362         struct net_device *dev = pci_get_drvdata(pdev);
1363         struct adapter *adapter = dev->ml_priv;
1364         int i;
1365
1366         for_each_port(adapter, i) {
1367                 if (test_bit(i, &adapter->registered_device_map))
1368                         unregister_netdev(adapter->port[i].dev);
1369         }
1370
1371         t1_free_sw_modules(adapter);
1372         iounmap(adapter->regs);
1373
1374         while (--i >= 0) {
1375                 if (adapter->port[i].dev)
1376                         free_netdev(adapter->port[i].dev);
1377         }
1378
1379         pci_release_regions(pdev);
1380         pci_disable_device(pdev);
1381         pci_set_drvdata(pdev, NULL);
1382         t1_sw_reset(pdev);
1383 }
1384
1385 static struct pci_driver driver = {
1386         .name     = DRV_NAME,
1387         .id_table = t1_pci_tbl,
1388         .probe    = init_one,
1389         .remove   = __devexit_p(remove_one),
1390 };
1391
1392 static int __init t1_init_module(void)
1393 {
1394         return pci_register_driver(&driver);
1395 }
1396
1397 static void __exit t1_cleanup_module(void)
1398 {
1399         pci_unregister_driver(&driver);
1400 }
1401
1402 module_init(t1_init_module);
1403 module_exit(t1_cleanup_module);