drivers/net/cxgb3/cxgb3_main.c

   1 /*
   2  * Copyright (c) 2003-2007 Chelsio, Inc. All rights reserved.
   3  *
   4  * This software is available to you under a choice of one of two
   5  * licenses.  You may choose to be licensed under the terms of the GNU
   6  * General Public License (GPL) Version 2, available from the file
   7  * COPYING in the main directory of this source tree, or the
   8  * OpenIB.org BSD license below:
   9  *
  10  *     Redistribution and use in source and binary forms, with or
  11  *     without modification, are permitted provided that the following
  12  *     conditions are met:
  13  *
  14  *      - Redistributions of source code must retain the above
  15  *        copyright notice, this list of conditions and the following
  16  *        disclaimer.
  17  *
  18  *      - Redistributions in binary form must reproduce the above
  19  *        copyright notice, this list of conditions and the following
  20  *        disclaimer in the documentation and/or other materials
  21  *        provided with the distribution.
  22  *
  23  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  27  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  28  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  29  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  30  * SOFTWARE.
  31  */
  32 #include <linux/module.h>
  33 #include <linux/moduleparam.h>
  34 #include <linux/init.h>
  35 #include <linux/pci.h>
  36 #include <linux/dma-mapping.h>
  37 #include <linux/netdevice.h>
  38 #include <linux/etherdevice.h>
  39 #include <linux/if_vlan.h>
  40 #include <linux/mii.h>
  41 #include <linux/sockios.h>
  42 #include <linux/workqueue.h>
  43 #include <linux/proc_fs.h>
  44 #include <linux/rtnetlink.h>
  45 #include <linux/firmware.h>
  46 #include <linux/log2.h>
  47 #include <asm/uaccess.h>
  48
  49 #include "common.h"
  50 #include "cxgb3_ioctl.h"
  51 #include "regs.h"
  52 #include "cxgb3_offload.h"
  53 #include "version.h"
  54
  55 #include "cxgb3_ctl_defs.h"
  56 #include "t3_cpl.h"
  57 #include "firmware_exports.h"
  58
  59 enum {
  60         MAX_TXQ_ENTRIES = 16384,
  61         MAX_CTRL_TXQ_ENTRIES = 1024,
  62         MAX_RSPQ_ENTRIES = 16384,
  63         MAX_RX_BUFFERS = 16384,
  64         MAX_RX_JUMBO_BUFFERS = 16384,
  65         MIN_TXQ_ENTRIES = 4,
  66         MIN_CTRL_TXQ_ENTRIES = 4,
  67         MIN_RSPQ_ENTRIES = 32,
  68         MIN_FL_ENTRIES = 32
  69 };
  70
  71 #define PORT_MASK ((1 << MAX_NPORTS) - 1)
  72
  73 #define DFLT_MSG_ENABLE (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK | \
  74                          NETIF_MSG_TIMER | NETIF_MSG_IFDOWN | NETIF_MSG_IFUP |\
  75                          NETIF_MSG_RX_ERR | NETIF_MSG_TX_ERR)
  76
  77 #define EEPROM_MAGIC 0x38E2F10C
  78
  79 #define CH_DEVICE(devid, ssid, idx) \
  80         { PCI_VENDOR_ID_CHELSIO, devid, PCI_ANY_ID, ssid, 0, 0, idx }
  81
  82 static const struct pci_device_id cxgb3_pci_tbl[] = {
  83         CH_DEVICE(0x20, 1, 0),  /* PE9000 */
  84         CH_DEVICE(0x21, 1, 1),  /* T302E */
  85         CH_DEVICE(0x22, 1, 2),  /* T310E */
  86         CH_DEVICE(0x23, 1, 3),  /* T320X */
  87         CH_DEVICE(0x24, 1, 1),  /* T302X */
  88         CH_DEVICE(0x25, 1, 3),  /* T320E */
  89         CH_DEVICE(0x26, 1, 2),  /* T310X */
  90         CH_DEVICE(0x30, 1, 2),  /* T3B10 */
  91         CH_DEVICE(0x31, 1, 3),  /* T3B20 */
  92         CH_DEVICE(0x32, 1, 1),  /* T3B02 */
  93         {0,}
  94 };
  95
  96 MODULE_DESCRIPTION(DRV_DESC);
  97 MODULE_AUTHOR("Chelsio Communications");
  98 MODULE_LICENSE("Dual BSD/GPL");
  99 MODULE_VERSION(DRV_VERSION);
 100 MODULE_DEVICE_TABLE(pci, cxgb3_pci_tbl);
 101
 102 static int dflt_msg_enable = DFLT_MSG_ENABLE;
 103
 104 module_param(dflt_msg_enable, int, 0644);
 105 MODULE_PARM_DESC(dflt_msg_enable, "Chelsio T3 default message enable bitmap");
 106
 107 /*
 108  * The driver uses the best interrupt scheme available on a platform in the
 109  * order MSI-X, MSI, legacy pin interrupts.  This parameter determines which
 110  * of these schemes the driver may consider as follows:
 111  *
 112  * msi = 2: choose from among all three options
 113  * msi = 1: only consider MSI and pin interrupts
 114  * msi = 0: force pin interrupts
 115  */
 116 static int msi = 2;
 117
 118 module_param(msi, int, 0644);
 119 MODULE_PARM_DESC(msi, "whether to use MSI or MSI-X");
 120
 121 /*
 122  * The driver enables offload as a default.
 123  * To disable it, use ofld_disable = 1.
 124  */
 125
 126 static int ofld_disable = 0;
 127
 128 module_param(ofld_disable, int, 0644);
 129 MODULE_PARM_DESC(ofld_disable, "whether to enable offload at init time or not");
 130
 131 /*
 132  * We have work elements that we need to cancel when an interface is taken
 133  * down.  Normally the work elements would be executed by keventd but that
 134  * can deadlock because of linkwatch.  If our close method takes the rtnl
 135  * lock and linkwatch is ahead of our work elements in keventd, linkwatch
 136  * will block keventd as it needs the rtnl lock, and we'll deadlock waiting
 137  * for our work to complete.  Get our own work queue to solve this.
 138  */
 139 static struct workqueue_struct *cxgb3_wq;
 140
 141 /**
 142  *      link_report - show link status and link speed/duplex
 143  *      @p: the port whose settings are to be reported
 144  *
 145  *      Shows the link status, speed, and duplex of a port.
 146  */
 147 static void link_report(struct net_device *dev)
 148 {
 149         if (!netif_carrier_ok(dev))
 150                 printk(KERN_INFO "%s: link down\n", dev->name);
 151         else {
 152                 const char *s = "10Mbps";
 153                 const struct port_info *p = netdev_priv(dev);
 154
 155                 switch (p->link_config.speed) {
 156                 case SPEED_10000:
 157                         s = "10Gbps";
 158                         break;
 159                 case SPEED_1000:
 160                         s = "1000Mbps";
 161                         break;
 162                 case SPEED_100:
 163                         s = "100Mbps";
 164                         break;
 165                 }
 166
 167                 printk(KERN_INFO "%s: link up, %s, %s-duplex\n", dev->name, s,
 168                        p->link_config.duplex == DUPLEX_FULL ? "full" : "half");
 169         }
 170 }
 171
 172 /**
 173  *      t3_os_link_changed - handle link status changes
 174  *      @adapter: the adapter associated with the link change
 175  *      @port_id: the port index whose limk status has changed
 176  *      @link_stat: the new status of the link
 177  *      @speed: the new speed setting
 178  *      @duplex: the new duplex setting
 179  *      @pause: the new flow-control setting
 180  *
 181  *      This is the OS-dependent handler for link status changes.  The OS
 182  *      neutral handler takes care of most of the processing for these events,
 183  *      then calls this handler for any OS-specific processing.
 184  */
 185 void t3_os_link_changed(struct adapter *adapter, int port_id, int link_stat,
 186                         int speed, int duplex, int pause)
 187 {
 188         struct net_device *dev = adapter->port[port_id];
 189         struct port_info *pi = netdev_priv(dev);
 190         struct cmac *mac = &pi->mac;
 191
 192         /* Skip changes from disabled ports. */
 193         if (!netif_running(dev))
 194                 return;
 195
 196         if (link_stat != netif_carrier_ok(dev)) {
 197                 if (link_stat) {
 198                         t3_mac_enable(mac, MAC_DIRECTION_RX);
 199                         netif_carrier_on(dev);
 200                 } else {
 201                         netif_carrier_off(dev);
 202                         pi->phy.ops->power_down(&pi->phy, 1);
 203                         t3_mac_disable(mac, MAC_DIRECTION_RX);
 204                         t3_link_start(&pi->phy, mac, &pi->link_config);
 205                 }
 206
 207                 link_report(dev);
 208         }
 209 }
 210
 211 static void cxgb_set_rxmode(struct net_device *dev)
 212 {
 213         struct t3_rx_mode rm;
 214         struct port_info *pi = netdev_priv(dev);
 215
 216         init_rx_mode(&rm, dev, dev->mc_list);
 217         t3_mac_set_rx_mode(&pi->mac, &rm);
 218 }
 219
 220 /**
 221  *      link_start - enable a port
 222  *      @dev: the device to enable
 223  *
 224  *      Performs the MAC and PHY actions needed to enable a port.
 225  */
 226 static void link_start(struct net_device *dev)
 227 {
 228         struct t3_rx_mode rm;
 229         struct port_info *pi = netdev_priv(dev);
 230         struct cmac *mac = &pi->mac;
 231
 232         init_rx_mode(&rm, dev, dev->mc_list);
 233         t3_mac_reset(mac);
 234         t3_mac_set_mtu(mac, dev->mtu);
 235         t3_mac_set_address(mac, 0, dev->dev_addr);
 236         t3_mac_set_rx_mode(mac, &rm);
 237         t3_link_start(&pi->phy, mac, &pi->link_config);
 238         t3_mac_enable(mac, MAC_DIRECTION_RX | MAC_DIRECTION_TX);
 239 }
 240
 241 static inline void cxgb_disable_msi(struct adapter *adapter)
 242 {
 243         if (adapter->flags & USING_MSIX) {
 244                 pci_disable_msix(adapter->pdev);
 245                 adapter->flags &= ~USING_MSIX;
 246         } else if (adapter->flags & USING_MSI) {
 247                 pci_disable_msi(adapter->pdev);
 248                 adapter->flags &= ~USING_MSI;
 249         }
 250 }
 251
 252 /*
 253  * Interrupt handler for asynchronous events used with MSI-X.
 254  */
 255 static irqreturn_t t3_async_intr_handler(int irq, void *cookie)
 256 {
 257         t3_slow_intr_handler(cookie);
 258         return IRQ_HANDLED;
 259 }
 260
 261 /*
 262  * Name the MSI-X interrupts.
 263  */
 264 static void name_msix_vecs(struct adapter *adap)
 265 {
 266         int i, j, msi_idx = 1, n = sizeof(adap->msix_info[0].desc) - 1;
 267
 268         snprintf(adap->msix_info[0].desc, n, "%s", adap->name);
 269         adap->msix_info[0].desc[n] = 0;
 270
 271         for_each_port(adap, j) {
 272                 struct net_device *d = adap->port[j];
 273                 const struct port_info *pi = netdev_priv(d);
 274
 275                 for (i = 0; i < pi->nqsets; i++, msi_idx++) {
 276                         snprintf(adap->msix_info[msi_idx].desc, n,
 277                                  "%s (queue %d)", d->name, i);
 278                         adap->msix_info[msi_idx].desc[n] = 0;
 279                 }
 280         }
 281 }
 282
 283 static int request_msix_data_irqs(struct adapter *adap)
 284 {
 285         int i, j, err, qidx = 0;
 286
 287         for_each_port(adap, i) {
 288                 int nqsets = adap2pinfo(adap, i)->nqsets;
 289
 290                 for (j = 0; j < nqsets; ++j) {
 291                         err = request_irq(adap->msix_info[qidx + 1].vec,
 292                                           t3_intr_handler(adap,
 293                                                           adap->sge.qs[qidx].
 294                                                           rspq.polling), 0,
 295                                           adap->msix_info[qidx + 1].desc,
 296                                           &adap->sge.qs[qidx]);
 297                         if (err) {
 298                                 while (--qidx >= 0)
 299                                         free_irq(adap->msix_info[qidx + 1].vec,
 300                                                  &adap->sge.qs[qidx]);
 301                                 return err;
 302                         }
 303                         qidx++;
 304                 }
 305         }
 306         return 0;
 307 }
 308
 309 /**
 310  *      setup_rss - configure RSS
 311  *      @adap: the adapter
 312  *
 313  *      Sets up RSS to distribute packets to multiple receive queues.  We
 314  *      configure the RSS CPU lookup table to distribute to the number of HW
 315  *      receive queues, and the response queue lookup table to narrow that
 316  *      down to the response queues actually configured for each port.
 317  *      We always configure the RSS mapping for two ports since the mapping
 318  *      table has plenty of entries.
 319  */
 320 static void setup_rss(struct adapter *adap)
 321 {
 322         int i;
 323         unsigned int nq0 = adap2pinfo(adap, 0)->nqsets;
 324         unsigned int nq1 = adap->port[1] ? adap2pinfo(adap, 1)->nqsets : 1;
 325         u8 cpus[SGE_QSETS + 1];
 326         u16 rspq_map[RSS_TABLE_SIZE];
 327
 328         for (i = 0; i < SGE_QSETS; ++i)
 329                 cpus[i] = i;
 330         cpus[SGE_QSETS] = 0xff; /* terminator */
 331
 332         for (i = 0; i < RSS_TABLE_SIZE / 2; ++i) {
 333                 rspq_map[i] = i % nq0;
 334                 rspq_map[i + RSS_TABLE_SIZE / 2] = (i % nq1) + nq0;
 335         }
 336
 337         t3_config_rss(adap, F_RQFEEDBACKENABLE | F_TNLLKPEN | F_TNLMAPEN |
 338                       F_TNLPRTEN | F_TNL2TUPEN | F_TNL4TUPEN |
 339                       V_RRCPLCPUSIZE(6), cpus, rspq_map);
 340 }
 341
 342 /*
 343  * If we have multiple receive queues per port serviced by NAPI we need one
 344  * netdevice per queue as NAPI operates on netdevices.  We already have one
 345  * netdevice, namely the one associated with the interface, so we use dummy
 346  * ones for any additional queues.  Note that these netdevices exist purely
 347  * so that NAPI has something to work with, they do not represent network
 348  * ports and are not registered.
 349  */
 350 static int init_dummy_netdevs(struct adapter *adap)
 351 {
 352         int i, j, dummy_idx = 0;
 353         struct net_device *nd;
 354
 355         for_each_port(adap, i) {
 356                 struct net_device *dev = adap->port[i];
 357                 const struct port_info *pi = netdev_priv(dev);
 358
 359                 for (j = 0; j < pi->nqsets - 1; j++) {
 360                         if (!adap->dummy_netdev[dummy_idx]) {
 361                                 nd = alloc_netdev(0, "", ether_setup);
 362                                 if (!nd)
 363                                         goto free_all;
 364
 365                                 nd->priv = adap;
 366                                 nd->weight = 64;
 367                                 set_bit(__LINK_STATE_START, &nd->state);
 368                                 adap->dummy_netdev[dummy_idx] = nd;
 369                         }
 370                         strcpy(adap->dummy_netdev[dummy_idx]->name, dev->name);
 371                         dummy_idx++;
 372                 }
 373         }
 374         return 0;
 375
 376 free_all:
 377         while (--dummy_idx >= 0) {
 378                 free_netdev(adap->dummy_netdev[dummy_idx]);
 379                 adap->dummy_netdev[dummy_idx] = NULL;
 380         }
 381         return -ENOMEM;
 382 }
 383
 384 /*
 385  * Wait until all NAPI handlers are descheduled.  This includes the handlers of
 386  * both netdevices representing interfaces and the dummy ones for the extra
 387  * queues.
 388  */
 389 static void quiesce_rx(struct adapter *adap)
 390 {
 391         int i;
 392         struct net_device *dev;
 393
 394         for_each_port(adap, i) {
 395                 dev = adap->port[i];
 396                 while (test_bit(__LINK_STATE_RX_SCHED, &dev->state))
 397                         msleep(1);
 398         }
 399
 400         for (i = 0; i < ARRAY_SIZE(adap->dummy_netdev); i++) {
 401                 dev = adap->dummy_netdev[i];
 402                 if (dev)
 403                         while (test_bit(__LINK_STATE_RX_SCHED, &dev->state))
 404                                 msleep(1);
 405         }
 406 }
 407
 408 /**
 409  *      setup_sge_qsets - configure SGE Tx/Rx/response queues
 410  *      @adap: the adapter
 411  *
 412  *      Determines how many sets of SGE queues to use and initializes them.
 413  *      We support multiple queue sets per port if we have MSI-X, otherwise
 414  *      just one queue set per port.
 415  */
 416 static int setup_sge_qsets(struct adapter *adap)
 417 {
 418         int i, j, err, irq_idx = 0, qset_idx = 0, dummy_dev_idx = 0;
 419         unsigned int ntxq = SGE_TXQ_PER_SET;
 420
 421         if (adap->params.rev > 0 && !(adap->flags & USING_MSI))
 422                 irq_idx = -1;
 423
 424         for_each_port(adap, i) {
 425                 struct net_device *dev = adap->port[i];
 426                 const struct port_info *pi = netdev_priv(dev);
 427
 428                 for (j = 0; j < pi->nqsets; ++j, ++qset_idx) {
 429                         err = t3_sge_alloc_qset(adap, qset_idx, 1,
 430                                 (adap->flags & USING_MSIX) ? qset_idx + 1 :
 431                                                              irq_idx,
 432                                 &adap->params.sge.qset[qset_idx], ntxq,
 433                                 j == 0 ? dev :
 434                                          adap-> dummy_netdev[dummy_dev_idx++]);
 435                         if (err) {
 436                                 t3_free_sge_resources(adap);
 437                                 return err;
 438                         }
 439                 }
 440         }
 441
 442         return 0;
 443 }
 444
 445 static ssize_t attr_show(struct device *d, struct device_attribute *attr,
 446                          char *buf,
 447                          ssize_t(*format) (struct net_device *, char *))
 448 {
 449         ssize_t len;
 450
 451         /* Synchronize with ioctls that may shut down the device */
 452         rtnl_lock();
 453         len = (*format) (to_net_dev(d), buf);
 454         rtnl_unlock();
 455         return len;
 456 }
 457
 458 static ssize_t attr_store(struct device *d, struct device_attribute *attr,
 459                           const char *buf, size_t len,
 460                           ssize_t(*set) (struct net_device *, unsigned int),
 461                           unsigned int min_val, unsigned int max_val)
 462 {
 463         char *endp;
 464         ssize_t ret;
 465         unsigned int val;
 466
 467         if (!capable(CAP_NET_ADMIN))
 468                 return -EPERM;
 469
 470         val = simple_strtoul(buf, &endp, 0);
 471         if (endp == buf || val < min_val || val > max_val)
 472                 return -EINVAL;
 473
 474         rtnl_lock();
 475         ret = (*set) (to_net_dev(d), val);
 476         if (!ret)
 477                 ret = len;
 478         rtnl_unlock();
 479         return ret;
 480 }
 481
 482 #define CXGB3_SHOW(name, val_expr) \
 483 static ssize_t format_##name(struct net_device *dev, char *buf) \
 484 { \
 485         struct adapter *adap = dev->priv; \
 486         return sprintf(buf, "%u\n", val_expr); \
 487 } \
 488 static ssize_t show_##name(struct device *d, struct device_attribute *attr, \
 489                            char *buf) \
 490 { \
 491         return attr_show(d, attr, buf, format_##name); \
 492 }
 493
 494 static ssize_t set_nfilters(struct net_device *dev, unsigned int val)
 495 {
 496         struct adapter *adap = dev->priv;
 497         int min_tids = is_offload(adap) ? MC5_MIN_TIDS : 0;
 498
 499         if (adap->flags & FULL_INIT_DONE)
 500                 return -EBUSY;
 501         if (val && adap->params.rev == 0)
 502                 return -EINVAL;
 503         if (val > t3_mc5_size(&adap->mc5) - adap->params.mc5.nservers -
 504             min_tids)
 505                 return -EINVAL;
 506         adap->params.mc5.nfilters = val;
 507         return 0;
 508 }
 509
 510 static ssize_t store_nfilters(struct device *d, struct device_attribute *attr,
 511                               const char *buf, size_t len)
 512 {
 513         return attr_store(d, attr, buf, len, set_nfilters, 0, ~0);
 514 }
 515
 516 static ssize_t set_nservers(struct net_device *dev, unsigned int val)
 517 {
 518         struct adapter *adap = dev->priv;
 519
 520         if (adap->flags & FULL_INIT_DONE)
 521                 return -EBUSY;
 522         if (val > t3_mc5_size(&adap->mc5) - adap->params.mc5.nfilters -
 523             MC5_MIN_TIDS)
 524                 return -EINVAL;
 525         adap->params.mc5.nservers = val;
 526         return 0;
 527 }
 528
 529 static ssize_t store_nservers(struct device *d, struct device_attribute *attr,
 530                               const char *buf, size_t len)
 531 {
 532         return attr_store(d, attr, buf, len, set_nservers, 0, ~0);
 533 }
 534
 535 #define CXGB3_ATTR_R(name, val_expr) \
 536 CXGB3_SHOW(name, val_expr) \
 537 static DEVICE_ATTR(name, S_IRUGO, show_##name, NULL)
 538
 539 #define CXGB3_ATTR_RW(name, val_expr, store_method) \
 540 CXGB3_SHOW(name, val_expr) \
 541 static DEVICE_ATTR(name, S_IRUGO | S_IWUSR, show_##name, store_method)
 542
 543 CXGB3_ATTR_R(cam_size, t3_mc5_size(&adap->mc5));
 544 CXGB3_ATTR_RW(nfilters, adap->params.mc5.nfilters, store_nfilters);
 545 CXGB3_ATTR_RW(nservers, adap->params.mc5.nservers, store_nservers);
 546
 547 static struct attribute *cxgb3_attrs[] = {
 548         &dev_attr_cam_size.attr,
 549         &dev_attr_nfilters.attr,
 550         &dev_attr_nservers.attr,
 551         NULL
 552 };
 553
 554 static struct attribute_group cxgb3_attr_group = {.attrs = cxgb3_attrs };
 555
 556 static ssize_t tm_attr_show(struct device *d, struct device_attribute *attr,
 557                             char *buf, int sched)
 558 {
 559         ssize_t len;
 560         unsigned int v, addr, bpt, cpt;
 561         struct adapter *adap = to_net_dev(d)->priv;
 562
 563         addr = A_TP_TX_MOD_Q1_Q0_RATE_LIMIT - sched / 2;
 564         rtnl_lock();
 565         t3_write_reg(adap, A_TP_TM_PIO_ADDR, addr);
 566         v = t3_read_reg(adap, A_TP_TM_PIO_DATA);
 567         if (sched & 1)
 568                 v >>= 16;
 569         bpt = (v >> 8) & 0xff;
 570         cpt = v & 0xff;
 571         if (!cpt)
 572                 len = sprintf(buf, "disabled\n");
 573         else {
 574                 v = (adap->params.vpd.cclk * 1000) / cpt;
 575                 len = sprintf(buf, "%u Kbps\n", (v * bpt) / 125);
 576         }
 577         rtnl_unlock();
 578         return len;
 579 }
 580
 581 static ssize_t tm_attr_store(struct device *d, struct device_attribute *attr,
 582                              const char *buf, size_t len, int sched)
 583 {
 584         char *endp;
 585         ssize_t ret;
 586         unsigned int val;
 587         struct adapter *adap = to_net_dev(d)->priv;
 588
 589         if (!capable(CAP_NET_ADMIN))
 590                 return -EPERM;
 591
 592         val = simple_strtoul(buf, &endp, 0);
 593         if (endp == buf || val > 10000000)
 594                 return -EINVAL;
 595
 596         rtnl_lock();
 597         ret = t3_config_sched(adap, val, sched);
 598         if (!ret)
 599                 ret = len;
 600         rtnl_unlock();
 601         return ret;
 602 }
 603
 604 #define TM_ATTR(name, sched) \
 605 static ssize_t show_##name(struct device *d, struct device_attribute *attr, \
 606                            char *buf) \
 607 { \
 608         return tm_attr_show(d, attr, buf, sched); \
 609 } \
 610 static ssize_t store_##name(struct device *d, struct device_attribute *attr, \
 611                             const char *buf, size_t len) \
 612 { \
 613         return tm_attr_store(d, attr, buf, len, sched); \
 614 } \
 615 static DEVICE_ATTR(name, S_IRUGO | S_IWUSR, show_##name, store_##name)
 616
 617 TM_ATTR(sched0, 0);
 618 TM_ATTR(sched1, 1);
 619 TM_ATTR(sched2, 2);
 620 TM_ATTR(sched3, 3);
 621 TM_ATTR(sched4, 4);
 622 TM_ATTR(sched5, 5);
 623 TM_ATTR(sched6, 6);
 624 TM_ATTR(sched7, 7);
 625
 626 static struct attribute *offload_attrs[] = {
 627         &dev_attr_sched0.attr,
 628         &dev_attr_sched1.attr,
 629         &dev_attr_sched2.attr,
 630         &dev_attr_sched3.attr,
 631         &dev_attr_sched4.attr,
 632         &dev_attr_sched5.attr,
 633         &dev_attr_sched6.attr,
 634         &dev_attr_sched7.attr,
 635         NULL
 636 };
 637
 638 static struct attribute_group offload_attr_group = {.attrs = offload_attrs };
 639
 640 /*
 641  * Sends an sk_buff to an offload queue driver
 642  * after dealing with any active network taps.
 643  */
 644 static inline int offload_tx(struct t3cdev *tdev, struct sk_buff *skb)
 645 {
 646         int ret;
 647
 648         local_bh_disable();
 649         ret = t3_offload_tx(tdev, skb);
 650         local_bh_enable();
 651         return ret;
 652 }
 653
 654 static int write_smt_entry(struct adapter *adapter, int idx)
 655 {
 656         struct cpl_smt_write_req *req;
 657         struct sk_buff *skb = alloc_skb(sizeof(*req), GFP_KERNEL);
 658
 659         if (!skb)
 660                 return -ENOMEM;
 661
 662         req = (struct cpl_smt_write_req *)__skb_put(skb, sizeof(*req));
 663         req->wr.wr_hi = htonl(V_WR_OP(FW_WROPCODE_FORWARD));
 664         OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_SMT_WRITE_REQ, idx));
 665         req->mtu_idx = NMTUS - 1;       /* should be 0 but there's a T3 bug */
 666         req->iff = idx;
 667         memset(req->src_mac1, 0, sizeof(req->src_mac1));
 668         memcpy(req->src_mac0, adapter->port[idx]->dev_addr, ETH_ALEN);
 669         skb->priority = 1;
 670         offload_tx(&adapter->tdev, skb);
 671         return 0;
 672 }
 673
 674 static int init_smt(struct adapter *adapter)
 675 {
 676         int i;
 677
 678         for_each_port(adapter, i)
 679             write_smt_entry(adapter, i);
 680         return 0;
 681 }
 682
 683 static void init_port_mtus(struct adapter *adapter)
 684 {
 685         unsigned int mtus = adapter->port[0]->mtu;
 686
 687         if (adapter->port[1])
 688                 mtus |= adapter->port[1]->mtu << 16;
 689         t3_write_reg(adapter, A_TP_MTU_PORT_TABLE, mtus);
 690 }
 691
 692 static void send_pktsched_cmd(struct adapter *adap, int sched, int qidx, int lo,
 693                               int hi, int port)
 694 {
 695         struct sk_buff *skb;
 696         struct mngt_pktsched_wr *req;
 697
 698         skb = alloc_skb(sizeof(*req), GFP_KERNEL | __GFP_NOFAIL);
 699         req = (struct mngt_pktsched_wr *)skb_put(skb, sizeof(*req));
 700         req->wr_hi = htonl(V_WR_OP(FW_WROPCODE_MNGT));
 701         req->mngt_opcode = FW_MNGTOPCODE_PKTSCHED_SET;
 702         req->sched = sched;
 703         req->idx = qidx;
 704         req->min = lo;
 705         req->max = hi;
 706         req->binding = port;
 707         t3_mgmt_tx(adap, skb);
 708 }
 709
 710 static void bind_qsets(struct adapter *adap)
 711 {
 712         int i, j;
 713
 714         for_each_port(adap, i) {
 715                 const struct port_info *pi = adap2pinfo(adap, i);
 716
 717                 for (j = 0; j < pi->nqsets; ++j)
 718                         send_pktsched_cmd(adap, 1, pi->first_qset + j, -1,
 719                                           -1, i);
 720         }
 721 }
 722
 723 #define FW_FNAME "t3fw-%d.%d.%d.bin"
 724
 725 static int upgrade_fw(struct adapter *adap)
 726 {
 727         int ret;
 728         char buf[64];
 729         const struct firmware *fw;
 730         struct device *dev = &adap->pdev->dev;
 731
 732         snprintf(buf, sizeof(buf), FW_FNAME, FW_VERSION_MAJOR,
 733                  FW_VERSION_MINOR, FW_VERSION_MICRO);
 734         ret = request_firmware(&fw, buf, dev);
 735         if (ret < 0) {
 736                 dev_err(dev, "could not upgrade firmware: unable to load %s\n",
 737                         buf);
 738                 return ret;
 739         }
 740         ret = t3_load_fw(adap, fw->data, fw->size);
 741         release_firmware(fw);
 742         return ret;
 743 }
 744
 745 /**
 746  *      cxgb_up - enable the adapter
 747  *      @adapter: adapter being enabled
 748  *
 749  *      Called when the first port is enabled, this function performs the
 750  *      actions necessary to make an adapter operational, such as completing
 751  *      the initialization of HW modules, and enabling interrupts.
 752  *
 753  *      Must be called with the rtnl lock held.
 754  */
 755 static int cxgb_up(struct adapter *adap)
 756 {
 757         int err = 0;
 758
 759         if (!(adap->flags & FULL_INIT_DONE)) {
 760                 err = t3_check_fw_version(adap);
 761                 if (err == -EINVAL)
 762                         err = upgrade_fw(adap);
 763                 if (err)
 764                         goto out;
 765
 766                 err = init_dummy_netdevs(adap);
 767                 if (err)
 768                         goto out;
 769
 770                 err = t3_init_hw(adap, 0);
 771                 if (err)
 772                         goto out;
 773
 774                 t3_write_reg(adap, A_ULPRX_TDDP_PSZ, V_HPZ0(PAGE_SHIFT - 12));
 775
 776                 err = setup_sge_qsets(adap);
 777                 if (err)
 778                         goto out;
 779
 780                 setup_rss(adap);
 781                 adap->flags |= FULL_INIT_DONE;
 782         }
 783
 784         t3_intr_clear(adap);
 785
 786         if (adap->flags & USING_MSIX) {
 787                 name_msix_vecs(adap);
 788                 err = request_irq(adap->msix_info[0].vec,
 789                                   t3_async_intr_handler, 0,
 790                                   adap->msix_info[0].desc, adap);
 791                 if (err)
 792                         goto irq_err;
 793
 794                 if (request_msix_data_irqs(adap)) {
 795                         free_irq(adap->msix_info[0].vec, adap);
 796                         goto irq_err;
 797                 }
 798         } else if ((err = request_irq(adap->pdev->irq,
 799                                       t3_intr_handler(adap,
 800                                                       adap->sge.qs[0].rspq.
 801                                                       polling),
 802                                       (adap->flags & USING_MSI) ?
 803                                        0 : IRQF_SHARED,
 804                                       adap->name, adap)))
 805                 goto irq_err;
 806
 807         t3_sge_start(adap);
 808         t3_intr_enable(adap);
 809
 810         if ((adap->flags & (USING_MSIX | QUEUES_BOUND)) == USING_MSIX)
 811                 bind_qsets(adap);
 812         adap->flags |= QUEUES_BOUND;
 813
 814 out:
 815         return err;
 816 irq_err:
 817         CH_ERR(adap, "request_irq failed, err %d\n", err);
 818         goto out;
 819 }
 820
 821 /*
 822  * Release resources when all the ports and offloading have been stopped.
 823  */
 824 static void cxgb_down(struct adapter *adapter)
 825 {
 826         t3_sge_stop(adapter);
 827         spin_lock_irq(&adapter->work_lock);     /* sync with PHY intr task */
 828         t3_intr_disable(adapter);
 829         spin_unlock_irq(&adapter->work_lock);
 830
 831         if (adapter->flags & USING_MSIX) {
 832                 int i, n = 0;
 833
 834                 free_irq(adapter->msix_info[0].vec, adapter);
 835                 for_each_port(adapter, i)
 836                     n += adap2pinfo(adapter, i)->nqsets;
 837
 838                 for (i = 0; i < n; ++i)
 839                         free_irq(adapter->msix_info[i + 1].vec,
 840                                  &adapter->sge.qs[i]);
 841         } else
 842                 free_irq(adapter->pdev->irq, adapter);
 843
 844         flush_workqueue(cxgb3_wq);      /* wait for external IRQ handler */
 845         quiesce_rx(adapter);
 846 }
 847
 848 static void schedule_chk_task(struct adapter *adap)
 849 {
 850         unsigned int timeo;
 851
 852         timeo = adap->params.linkpoll_period ?
 853             (HZ * adap->params.linkpoll_period) / 10 :
 854             adap->params.stats_update_period * HZ;
 855         if (timeo)
 856                 queue_delayed_work(cxgb3_wq, &adap->adap_check_task, timeo);
 857 }
 858
 859 static int offload_open(struct net_device *dev)
 860 {
 861         struct adapter *adapter = dev->priv;
 862         struct t3cdev *tdev = T3CDEV(dev);
 863         int adap_up = adapter->open_device_map & PORT_MASK;
 864         int err = 0;
 865
 866         if (test_and_set_bit(OFFLOAD_DEVMAP_BIT, &adapter->open_device_map))
 867                 return 0;
 868
 869         if (!adap_up && (err = cxgb_up(adapter)) < 0)
 870                 return err;
 871
 872         t3_tp_set_offload_mode(adapter, 1);
 873         tdev->lldev = adapter->port[0];
 874         err = cxgb3_offload_activate(adapter);
 875         if (err)
 876                 goto out;
 877
 878         init_port_mtus(adapter);
 879         t3_load_mtus(adapter, adapter->params.mtus, adapter->params.a_wnd,
 880                      adapter->params.b_wnd,
 881                      adapter->params.rev == 0 ?
 882                      adapter->port[0]->mtu : 0xffff);
 883         init_smt(adapter);
 884
 885         /* Never mind if the next step fails */
 886         sysfs_create_group(&tdev->lldev->dev.kobj, &offload_attr_group);
 887
 888         /* Call back all registered clients */
 889         cxgb3_add_clients(tdev);
 890
 891 out:
 892         /* restore them in case the offload module has changed them */
 893         if (err) {
 894                 t3_tp_set_offload_mode(adapter, 0);
 895                 clear_bit(OFFLOAD_DEVMAP_BIT, &adapter->open_device_map);
 896                 cxgb3_set_dummy_ops(tdev);
 897         }
 898         return err;
 899 }
 900
 901 static int offload_close(struct t3cdev *tdev)
 902 {
 903         struct adapter *adapter = tdev2adap(tdev);
 904
 905         if (!test_bit(OFFLOAD_DEVMAP_BIT, &adapter->open_device_map))
 906                 return 0;
 907
 908         /* Call back all registered clients */
 909         cxgb3_remove_clients(tdev);
 910
 911         sysfs_remove_group(&tdev->lldev->dev.kobj, &offload_attr_group);
 912
 913         tdev->lldev = NULL;
 914         cxgb3_set_dummy_ops(tdev);
 915         t3_tp_set_offload_mode(adapter, 0);
 916         clear_bit(OFFLOAD_DEVMAP_BIT, &adapter->open_device_map);
 917
 918         if (!adapter->open_device_map)
 919                 cxgb_down(adapter);
 920
 921         cxgb3_offload_deactivate(adapter);
 922         return 0;
 923 }
 924
 925 static int cxgb_open(struct net_device *dev)
 926 {
 927         int err;
 928         struct adapter *adapter = dev->priv;
 929         struct port_info *pi = netdev_priv(dev);
 930         int other_ports = adapter->open_device_map & PORT_MASK;
 931
 932         if (!adapter->open_device_map && (err = cxgb_up(adapter)) < 0)
 933                 return err;
 934
 935         set_bit(pi->port_id, &adapter->open_device_map);
 936         if (is_offload(adapter) && !ofld_disable) {
 937                 err = offload_open(dev);
 938                 if (err)
 939                         printk(KERN_WARNING
 940                                "Could not initialize offload capabilities\n");
 941         }
 942
 943         link_start(dev);
 944         t3_port_intr_enable(adapter, pi->port_id);
 945         netif_start_queue(dev);
 946         if (!other_ports)
 947                 schedule_chk_task(adapter);
 948
 949         return 0;
 950 }
 951
 952 static int cxgb_close(struct net_device *dev)
 953 {
 954         struct adapter *adapter = dev->priv;
 955         struct port_info *p = netdev_priv(dev);
 956
 957         t3_port_intr_disable(adapter, p->port_id);
 958         netif_stop_queue(dev);
 959         p->phy.ops->power_down(&p->phy, 1);
 960         netif_carrier_off(dev);
 961         t3_mac_disable(&p->mac, MAC_DIRECTION_TX | MAC_DIRECTION_RX);
 962
 963         spin_lock(&adapter->work_lock); /* sync with update task */
 964         clear_bit(p->port_id, &adapter->open_device_map);
 965         spin_unlock(&adapter->work_lock);
 966
 967         if (!(adapter->open_device_map & PORT_MASK))
 968                 cancel_rearming_delayed_workqueue(cxgb3_wq,
 969                                                   &adapter->adap_check_task);
 970
 971         if (!adapter->open_device_map)
 972                 cxgb_down(adapter);
 973
 974         return 0;
 975 }
 976
 977 static struct net_device_stats *cxgb_get_stats(struct net_device *dev)
 978 {
 979         struct adapter *adapter = dev->priv;
 980         struct port_info *p = netdev_priv(dev);
 981         struct net_device_stats *ns = &p->netstats;
 982         const struct mac_stats *pstats;
 983
 984         spin_lock(&adapter->stats_lock);
 985         pstats = t3_mac_update_stats(&p->mac);
 986         spin_unlock(&adapter->stats_lock);
 987
 988         ns->tx_bytes = pstats->tx_octets;
 989         ns->tx_packets = pstats->tx_frames;
 990         ns->rx_bytes = pstats->rx_octets;
 991         ns->rx_packets = pstats->rx_frames;
 992         ns->multicast = pstats->rx_mcast_frames;
 993
 994         ns->tx_errors = pstats->tx_underrun;
 995         ns->rx_errors = pstats->rx_symbol_errs + pstats->rx_fcs_errs +
 996             pstats->rx_too_long + pstats->rx_jabber + pstats->rx_short +
 997             pstats->rx_fifo_ovfl;
 998
 999         /* detailed rx_errors */
1000         ns->rx_length_errors = pstats->rx_jabber + pstats->rx_too_long;
1001         ns->rx_over_errors = 0;
1002         ns->rx_crc_errors = pstats->rx_fcs_errs;
1003         ns->rx_frame_errors = pstats->rx_symbol_errs;
1004         ns->rx_fifo_errors = pstats->rx_fifo_ovfl;
1005         ns->rx_missed_errors = pstats->rx_cong_drops;
1006
1007         /* detailed tx_errors */
1008         ns->tx_aborted_errors = 0;
1009         ns->tx_carrier_errors = 0;
1010         ns->tx_fifo_errors = pstats->tx_underrun;
1011         ns->tx_heartbeat_errors = 0;
1012         ns->tx_window_errors = 0;
1013         return ns;
1014 }
1015
1016 static u32 get_msglevel(struct net_device *dev)
1017 {
1018         struct adapter *adapter = dev->priv;
1019
1020         return adapter->msg_enable;
1021 }
1022
1023 static void set_msglevel(struct net_device *dev, u32 val)
1024 {
1025         struct adapter *adapter = dev->priv;
1026
1027         adapter->msg_enable = val;
1028 }
1029
1030 static char stats_strings[][ETH_GSTRING_LEN] = {
1031         "TxOctetsOK         ",
1032         "TxFramesOK         ",
1033         "TxMulticastFramesOK",
1034         "TxBroadcastFramesOK",
1035         "TxPauseFrames      ",
1036         "TxUnderrun         ",
1037         "TxExtUnderrun      ",
1038
1039         "TxFrames64         ",
1040         "TxFrames65To127    ",
1041         "TxFrames128To255   ",
1042         "TxFrames256To511   ",
1043         "TxFrames512To1023  ",
1044         "TxFrames1024To1518 ",
1045         "TxFrames1519ToMax  ",
1046
1047         "RxOctetsOK         ",
1048         "RxFramesOK         ",
1049         "RxMulticastFramesOK",
1050         "RxBroadcastFramesOK",
1051         "RxPauseFrames      ",
1052         "RxFCSErrors        ",
1053         "RxSymbolErrors     ",
1054         "RxShortErrors      ",
1055         "RxJabberErrors     ",
1056         "RxLengthErrors     ",
1057         "RxFIFOoverflow     ",
1058
1059         "RxFrames64         ",
1060         "RxFrames65To127    ",
1061         "RxFrames128To255   ",
1062         "RxFrames256To511   ",
1063         "RxFrames512To1023  ",
1064         "RxFrames1024To1518 ",
1065         "RxFrames1519ToMax  ",
1066
1067         "PhyFIFOErrors      ",
1068         "TSO                ",
1069         "VLANextractions    ",
1070         "VLANinsertions     ",
1071         "TxCsumOffload      ",
1072         "RxCsumGood         ",
1073         "RxDrops            ",
1074
1075         "CheckTXEnToggled   ",
1076         "CheckResets        ",
1077
1078 };
1079
1080 static int get_stats_count(struct net_device *dev)
1081 {
1082         return ARRAY_SIZE(stats_strings);
1083 }
1084
1085 #define T3_REGMAP_SIZE (3 * 1024)
1086
1087 static int get_regs_len(struct net_device *dev)
1088 {
1089         return T3_REGMAP_SIZE;
1090 }
1091
1092 static int get_eeprom_len(struct net_device *dev)
1093 {
1094         return EEPROMSIZE;
1095 }
1096
1097 static void get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
1098 {
1099         u32 fw_vers = 0;
1100         struct adapter *adapter = dev->priv;
1101
1102         t3_get_fw_version(adapter, &fw_vers);
1103
1104         strcpy(info->driver, DRV_NAME);
1105         strcpy(info->version, DRV_VERSION);
1106         strcpy(info->bus_info, pci_name(adapter->pdev));
1107         if (!fw_vers)
1108                 strcpy(info->fw_version, "N/A");
1109         else {
1110                 snprintf(info->fw_version, sizeof(info->fw_version),
1111                          "%s %u.%u.%u",
1112                          G_FW_VERSION_TYPE(fw_vers) ? "T" : "N",
1113                          G_FW_VERSION_MAJOR(fw_vers),
1114                          G_FW_VERSION_MINOR(fw_vers),
1115                          G_FW_VERSION_MICRO(fw_vers));
1116         }
1117 }
1118
1119 static void get_strings(struct net_device *dev, u32 stringset, u8 * data)
1120 {
1121         if (stringset == ETH_SS_STATS)
1122                 memcpy(data, stats_strings, sizeof(stats_strings));
1123 }
1124
1125 static unsigned long collect_sge_port_stats(struct adapter *adapter,
1126                                             struct port_info *p, int idx)
1127 {
1128         int i;
1129         unsigned long tot = 0;
1130
1131         for (i = 0; i < p->nqsets; ++i)
1132                 tot += adapter->sge.qs[i + p->first_qset].port_stats[idx];
1133         return tot;
1134 }
1135
1136 static void get_stats(struct net_device *dev, struct ethtool_stats *stats,
1137                       u64 *data)
1138 {
1139         struct adapter *adapter = dev->priv;
1140         struct port_info *pi = netdev_priv(dev);
1141         const struct mac_stats *s;
1142
1143         spin_lock(&adapter->stats_lock);
1144         s = t3_mac_update_stats(&pi->mac);
1145         spin_unlock(&adapter->stats_lock);
1146
1147         *data++ = s->tx_octets;
1148         *data++ = s->tx_frames;
1149         *data++ = s->tx_mcast_frames;
1150         *data++ = s->tx_bcast_frames;
1151         *data++ = s->tx_pause;
1152         *data++ = s->tx_underrun;
1153         *data++ = s->tx_fifo_urun;
1154
1155         *data++ = s->tx_frames_64;
1156         *data++ = s->tx_frames_65_127;
1157         *data++ = s->tx_frames_128_255;
1158         *data++ = s->tx_frames_256_511;
1159         *data++ = s->tx_frames_512_1023;
1160         *data++ = s->tx_frames_1024_1518;
1161         *data++ = s->tx_frames_1519_max;
1162
1163         *data++ = s->rx_octets;
1164         *data++ = s->rx_frames;
1165         *data++ = s->rx_mcast_frames;
1166         *data++ = s->rx_bcast_frames;
1167         *data++ = s->rx_pause;
1168         *data++ = s->rx_fcs_errs;
1169         *data++ = s->rx_symbol_errs;
1170         *data++ = s->rx_short;
1171         *data++ = s->rx_jabber;
1172         *data++ = s->rx_too_long;
1173         *data++ = s->rx_fifo_ovfl;
1174
1175         *data++ = s->rx_frames_64;
1176         *data++ = s->rx_frames_65_127;
1177         *data++ = s->rx_frames_128_255;
1178         *data++ = s->rx_frames_256_511;
1179         *data++ = s->rx_frames_512_1023;
1180         *data++ = s->rx_frames_1024_1518;
1181         *data++ = s->rx_frames_1519_max;
1182
1183         *data++ = pi->phy.fifo_errors;
1184
1185         *data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_TSO);
1186         *data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_VLANEX);
1187         *data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_VLANINS);
1188         *data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_TX_CSUM);
1189         *data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_RX_CSUM_GOOD);
1190         *data++ = s->rx_cong_drops;
1191
1192         *data++ = s->num_toggled;
1193         *data++ = s->num_resets;
1194 }
1195
1196 static inline void reg_block_dump(struct adapter *ap, void *buf,
1197                                   unsigned int start, unsigned int end)
1198 {
1199         u32 *p = buf + start;
1200
1201         for (; start <= end; start += sizeof(u32))
1202                 *p++ = t3_read_reg(ap, start);
1203 }
1204
1205 static void get_regs(struct net_device *dev, struct ethtool_regs *regs,
1206                      void *buf)
1207 {
1208         struct adapter *ap = dev->priv;
1209
1210         /*
1211          * Version scheme:
1212          * bits 0..9: chip version
1213          * bits 10..15: chip revision
1214          * bit 31: set for PCIe cards
1215          */
1216         regs->version = 3 | (ap->params.rev << 10) | (is_pcie(ap) << 31);
1217
1218         /*
1219          * We skip the MAC statistics registers because they are clear-on-read.
1220          * Also reading multi-register stats would need to synchronize with the
1221          * periodic mac stats accumulation.  Hard to justify the complexity.
1222          */
1223         memset(buf, 0, T3_REGMAP_SIZE);
1224         reg_block_dump(ap, buf, 0, A_SG_RSPQ_CREDIT_RETURN);
1225         reg_block_dump(ap, buf, A_SG_HI_DRB_HI_THRSH, A_ULPRX_PBL_ULIMIT);
1226         reg_block_dump(ap, buf, A_ULPTX_CONFIG, A_MPS_INT_CAUSE);
1227         reg_block_dump(ap, buf, A_CPL_SWITCH_CNTRL, A_CPL_MAP_TBL_DATA);
1228         reg_block_dump(ap, buf, A_SMB_GLOBAL_TIME_CFG, A_XGM_SERDES_STAT3);
1229         reg_block_dump(ap, buf, A_XGM_SERDES_STATUS0,
1230                        XGM_REG(A_XGM_SERDES_STAT3, 1));
1231         reg_block_dump(ap, buf, XGM_REG(A_XGM_SERDES_STATUS0, 1),
1232                        XGM_REG(A_XGM_RX_SPI4_SOP_EOP_CNT, 1));
1233 }
1234
1235 static int restart_autoneg(struct net_device *dev)
1236 {
1237         struct port_info *p = netdev_priv(dev);
1238
1239         if (!netif_running(dev))
1240                 return -EAGAIN;
1241         if (p->link_config.autoneg != AUTONEG_ENABLE)
1242                 return -EINVAL;
1243         p->phy.ops->autoneg_restart(&p->phy);
1244         return 0;
1245 }
1246
1247 static int cxgb3_phys_id(struct net_device *dev, u32 data)
1248 {
1249         int i;
1250         struct adapter *adapter = dev->priv;
1251
1252         if (data == 0)
1253                 data = 2;
1254
1255         for (i = 0; i < data * 2; i++) {
1256                 t3_set_reg_field(adapter, A_T3DBG_GPIO_EN, F_GPIO0_OUT_VAL,
1257                                  (i & 1) ? F_GPIO0_OUT_VAL : 0);
1258                 if (msleep_interruptible(500))
1259                         break;
1260         }
1261         t3_set_reg_field(adapter, A_T3DBG_GPIO_EN, F_GPIO0_OUT_VAL,
1262                          F_GPIO0_OUT_VAL);
1263         return 0;
1264 }
1265
1266 static int get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
1267 {
1268         struct port_info *p = netdev_priv(dev);
1269
1270         cmd->supported = p->link_config.supported;
1271         cmd->advertising = p->link_config.advertising;
1272
1273         if (netif_carrier_ok(dev)) {
1274                 cmd->speed = p->link_config.speed;
1275                 cmd->duplex = p->link_config.duplex;
1276         } else {
1277                 cmd->speed = -1;
1278                 cmd->duplex = -1;
1279         }
1280
1281         cmd->port = (cmd->supported & SUPPORTED_TP) ? PORT_TP : PORT_FIBRE;
1282         cmd->phy_address = p->phy.addr;
1283         cmd->transceiver = XCVR_EXTERNAL;
1284         cmd->autoneg = p->link_config.autoneg;
1285         cmd->maxtxpkt = 0;
1286         cmd->maxrxpkt = 0;
1287         return 0;
1288 }
1289
1290 static int speed_duplex_to_caps(int speed, int duplex)
1291 {
1292         int cap = 0;
1293
1294         switch (speed) {
1295         case SPEED_10:
1296                 if (duplex == DUPLEX_FULL)
1297                         cap = SUPPORTED_10baseT_Full;
1298                 else
1299                         cap = SUPPORTED_10baseT_Half;
1300                 break;
1301         case SPEED_100:
1302                 if (duplex == DUPLEX_FULL)
1303                         cap = SUPPORTED_100baseT_Full;
1304                 else
1305                         cap = SUPPORTED_100baseT_Half;
1306                 break;
1307         case SPEED_1000:
1308                 if (duplex == DUPLEX_FULL)
1309                         cap = SUPPORTED_1000baseT_Full;
1310                 else
1311                         cap = SUPPORTED_1000baseT_Half;
1312                 break;
1313         case SPEED_10000:
1314                 if (duplex == DUPLEX_FULL)
1315                         cap = SUPPORTED_10000baseT_Full;
1316         }
1317         return cap;
1318 }
1319
1320 #define ADVERTISED_MASK (ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full | \
1321                       ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full | \
1322                       ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full | \
1323                       ADVERTISED_10000baseT_Full)
1324
1325 static int set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
1326 {
1327         struct port_info *p = netdev_priv(dev);
1328         struct link_config *lc = &p->link_config;
1329
1330         if (!(lc->supported & SUPPORTED_Autoneg))
1331                 return -EOPNOTSUPP;     /* can't change speed/duplex */
1332
1333         if (cmd->autoneg == AUTONEG_DISABLE) {
1334                 int cap = speed_duplex_to_caps(cmd->speed, cmd->duplex);
1335
1336                 if (!(lc->supported & cap) || cmd->speed == SPEED_1000)
1337                         return -EINVAL;
1338                 lc->requested_speed = cmd->speed;
1339                 lc->requested_duplex = cmd->duplex;
1340                 lc->advertising = 0;
1341         } else {
1342                 cmd->advertising &= ADVERTISED_MASK;
1343                 cmd->advertising &= lc->supported;
1344                 if (!cmd->advertising)
1345                         return -EINVAL;
1346                 lc->requested_speed = SPEED_INVALID;
1347                 lc->requested_duplex = DUPLEX_INVALID;
1348                 lc->advertising = cmd->advertising | ADVERTISED_Autoneg;
1349         }
1350         lc->autoneg = cmd->autoneg;
1351         if (netif_running(dev))
1352                 t3_link_start(&p->phy, &p->mac, lc);
1353         return 0;
1354 }
1355
1356 static void get_pauseparam(struct net_device *dev,
1357                            struct ethtool_pauseparam *epause)
1358 {
1359         struct port_info *p = netdev_priv(dev);
1360
1361         epause->autoneg = (p->link_config.requested_fc & PAUSE_AUTONEG) != 0;
1362         epause->rx_pause = (p->link_config.fc & PAUSE_RX) != 0;
1363         epause->tx_pause = (p->link_config.fc & PAUSE_TX) != 0;
1364 }
1365
1366 static int set_pauseparam(struct net_device *dev,
1367                           struct ethtool_pauseparam *epause)
1368 {
1369         struct port_info *p = netdev_priv(dev);
1370         struct link_config *lc = &p->link_config;
1371
1372         if (epause->autoneg == AUTONEG_DISABLE)
1373                 lc->requested_fc = 0;
1374         else if (lc->supported & SUPPORTED_Autoneg)
1375                 lc->requested_fc = PAUSE_AUTONEG;
1376         else
1377                 return -EINVAL;
1378
1379         if (epause->rx_pause)
1380                 lc->requested_fc |= PAUSE_RX;
1381         if (epause->tx_pause)
1382                 lc->requested_fc |= PAUSE_TX;
1383         if (lc->autoneg == AUTONEG_ENABLE) {
1384                 if (netif_running(dev))
1385                         t3_link_start(&p->phy, &p->mac, lc);
1386         } else {
1387                 lc->fc = lc->requested_fc & (PAUSE_RX | PAUSE_TX);
1388                 if (netif_running(dev))
1389                         t3_mac_set_speed_duplex_fc(&p->mac, -1, -1, lc->fc);
1390         }
1391         return 0;
1392 }
1393
1394 static u32 get_rx_csum(struct net_device *dev)
1395 {
1396         struct port_info *p = netdev_priv(dev);
1397
1398         return p->rx_csum_offload;
1399 }
1400
1401 static int set_rx_csum(struct net_device *dev, u32 data)
1402 {
1403         struct port_info *p = netdev_priv(dev);
1404
1405         p->rx_csum_offload = data;
1406         return 0;
1407 }
1408
1409 static void get_sge_param(struct net_device *dev, struct ethtool_ringparam *e)
1410 {
1411         const struct adapter *adapter = dev->priv;
1412         const struct port_info *pi = netdev_priv(dev);
1413         const struct qset_params *q = &adapter->params.sge.qset[pi->first_qset];
1414
1415         e->rx_max_pending = MAX_RX_BUFFERS;
1416         e->rx_mini_max_pending = 0;
1417         e->rx_jumbo_max_pending = MAX_RX_JUMBO_BUFFERS;
1418         e->tx_max_pending = MAX_TXQ_ENTRIES;
1419
1420         e->rx_pending = q->fl_size;
1421         e->rx_mini_pending = q->rspq_size;
1422         e->rx_jumbo_pending = q->jumbo_size;
1423         e->tx_pending = q->txq_size[0];
1424 }
1425
1426 static int set_sge_param(struct net_device *dev, struct ethtool_ringparam *e)
1427 {
1428         int i;
1429         struct qset_params *q;
1430         struct adapter *adapter = dev->priv;
1431         const struct port_info *pi = netdev_priv(dev);
1432
1433         if (e->rx_pending > MAX_RX_BUFFERS ||
1434             e->rx_jumbo_pending > MAX_RX_JUMBO_BUFFERS ||
1435             e->tx_pending > MAX_TXQ_ENTRIES ||
1436             e->rx_mini_pending > MAX_RSPQ_ENTRIES ||
1437             e->rx_mini_pending < MIN_RSPQ_ENTRIES ||
1438             e->rx_pending < MIN_FL_ENTRIES ||
1439             e->rx_jumbo_pending < MIN_FL_ENTRIES ||
1440             e->tx_pending < adapter->params.nports * MIN_TXQ_ENTRIES)
1441                 return -EINVAL;
1442
1443         if (adapter->flags & FULL_INIT_DONE)
1444                 return -EBUSY;
1445
1446         q = &adapter->params.sge.qset[pi->first_qset];
1447         for (i = 0; i < pi->nqsets; ++i, ++q) {
1448                 q->rspq_size = e->rx_mini_pending;
1449                 q->fl_size = e->rx_pending;
1450                 q->jumbo_size = e->rx_jumbo_pending;
1451                 q->txq_size[0] = e->tx_pending;
1452                 q->txq_size[1] = e->tx_pending;
1453                 q->txq_size[2] = e->tx_pending;
1454         }
1455         return 0;
1456 }
1457
1458 static int set_coalesce(struct net_device *dev, struct ethtool_coalesce *c)
1459 {
1460         struct adapter *adapter = dev->priv;
1461         struct qset_params *qsp = &adapter->params.sge.qset[0];
1462         struct sge_qset *qs = &adapter->sge.qs[0];
1463
1464         if (c->rx_coalesce_usecs * 10 > M_NEWTIMER)
1465                 return -EINVAL;
1466
1467         qsp->coalesce_usecs = c->rx_coalesce_usecs;
1468         t3_update_qset_coalesce(qs, qsp);
1469         return 0;
1470 }
1471
1472 static int get_coalesce(struct net_device *dev, struct ethtool_coalesce *c)
1473 {
1474         struct adapter *adapter = dev->priv;
1475         struct qset_params *q = adapter->params.sge.qset;
1476
1477         c->rx_coalesce_usecs = q->coalesce_usecs;
1478         return 0;
1479 }
1480
1481 static int get_eeprom(struct net_device *dev, struct ethtool_eeprom *e,
1482                       u8 * data)
1483 {
1484         int i, err = 0;
1485         struct adapter *adapter = dev->priv;
1486
1487         u8 *buf = kmalloc(EEPROMSIZE, GFP_KERNEL);
1488         if (!buf)
1489                 return -ENOMEM;
1490
1491         e->magic = EEPROM_MAGIC;
1492         for (i = e->offset & ~3; !err && i < e->offset + e->len; i += 4)
1493                 err = t3_seeprom_read(adapter, i, (u32 *) & buf[i]);
1494
1495         if (!err)
1496                 memcpy(data, buf + e->offset, e->len);
1497         kfree(buf);
1498         return err;
1499 }
1500
1501 static int set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom,
1502                       u8 * data)
1503 {
1504         u8 *buf;
1505         int err = 0;
1506         u32 aligned_offset, aligned_len, *p;
1507         struct adapter *adapter = dev->priv;
1508
1509         if (eeprom->magic != EEPROM_MAGIC)
1510                 return -EINVAL;
1511
1512         aligned_offset = eeprom->offset & ~3;
1513         aligned_len = (eeprom->len + (eeprom->offset & 3) + 3) & ~3;
1514
1515         if (aligned_offset != eeprom->offset || aligned_len != eeprom->len) {
1516                 buf = kmalloc(aligned_len, GFP_KERNEL);
1517                 if (!buf)
1518                         return -ENOMEM;
1519                 err = t3_seeprom_read(adapter, aligned_offset, (u32 *) buf);
1520                 if (!err && aligned_len > 4)
1521                         err = t3_seeprom_read(adapter,
1522                                               aligned_offset + aligned_len - 4,
1523                                               (u32 *) & buf[aligned_len - 4]);
1524                 if (err)
1525                         goto out;
1526                 memcpy(buf + (eeprom->offset & 3), data, eeprom->len);
1527         } else
1528                 buf = data;
1529
1530         err = t3_seeprom_wp(adapter, 0);
1531         if (err)
1532                 goto out;
1533
1534         for (p = (u32 *) buf; !err && aligned_len; aligned_len -= 4, p++) {
1535                 err = t3_seeprom_write(adapter, aligned_offset, *p);
1536                 aligned_offset += 4;
1537         }
1538
1539         if (!err)
1540                 err = t3_seeprom_wp(adapter, 1);
1541 out:
1542         if (buf != data)
1543                 kfree(buf);
1544         return err;
1545 }
1546
1547 static void get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
1548 {
1549         wol->supported = 0;
1550         wol->wolopts = 0;
1551         memset(&wol->sopass, 0, sizeof(wol->sopass));
1552 }
1553
1554 static const struct ethtool_ops cxgb_ethtool_ops = {
1555         .get_settings = get_settings,
1556         .set_settings = set_settings,
1557         .get_drvinfo = get_drvinfo,
1558         .get_msglevel = get_msglevel,
1559         .set_msglevel = set_msglevel,
1560         .get_ringparam = get_sge_param,
1561         .set_ringparam = set_sge_param,
1562         .get_coalesce = get_coalesce,
1563         .set_coalesce = set_coalesce,
1564         .get_eeprom_len = get_eeprom_len,
1565         .get_eeprom = get_eeprom,
1566         .set_eeprom = set_eeprom,
1567         .get_pauseparam = get_pauseparam,
1568         .set_pauseparam = set_pauseparam,
1569         .get_rx_csum = get_rx_csum,
1570         .set_rx_csum = set_rx_csum,
1571         .get_tx_csum = ethtool_op_get_tx_csum,
1572         .set_tx_csum = ethtool_op_set_tx_csum,
1573         .get_sg = ethtool_op_get_sg,
1574         .set_sg = ethtool_op_set_sg,
1575         .get_link = ethtool_op_get_link,
1576         .get_strings = get_strings,
1577         .phys_id = cxgb3_phys_id,
1578         .nway_reset = restart_autoneg,
1579         .get_stats_count = get_stats_count,
1580         .get_ethtool_stats = get_stats,
1581         .get_regs_len = get_regs_len,
1582         .get_regs = get_regs,
1583         .get_wol = get_wol,
1584         .get_tso = ethtool_op_get_tso,
1585         .set_tso = ethtool_op_set_tso,
1586 };
1587
1588 static int in_range(int val, int lo, int hi)
1589 {
1590         return val < 0 || (val <= hi && val >= lo);
1591 }
1592
1593 static int cxgb_extension_ioctl(struct net_device *dev, void __user *useraddr)
1594 {
1595         int ret;
1596         u32 cmd;
1597         struct adapter *adapter = dev->priv;
1598
1599         if (copy_from_user(&cmd, useraddr, sizeof(cmd)))
1600                 return -EFAULT;
1601
1602         switch (cmd) {
1603         case CHELSIO_SET_QSET_PARAMS:{
1604                 int i;
1605                 struct qset_params *q;
1606                 struct ch_qset_params t;
1607
1608                 if (!capable(CAP_NET_ADMIN))
1609                         return -EPERM;
1610                 if (copy_from_user(&t, useraddr, sizeof(t)))
1611                         return -EFAULT;
1612                 if (t.qset_idx >= SGE_QSETS)
1613                         return -EINVAL;
1614                 if (!in_range(t.intr_lat, 0, M_NEWTIMER) ||
1615                         !in_range(t.cong_thres, 0, 255) ||
1616                         !in_range(t.txq_size[0], MIN_TXQ_ENTRIES,
1617                                 MAX_TXQ_ENTRIES) ||
1618                         !in_range(t.txq_size[1], MIN_TXQ_ENTRIES,
1619                                 MAX_TXQ_ENTRIES) ||
1620                         !in_range(t.txq_size[2], MIN_CTRL_TXQ_ENTRIES,
1621                                 MAX_CTRL_TXQ_ENTRIES) ||
1622                         !in_range(t.fl_size[0], MIN_FL_ENTRIES,
1623                                 MAX_RX_BUFFERS)
1624                         || !in_range(t.fl_size[1], MIN_FL_ENTRIES,
1625                                         MAX_RX_JUMBO_BUFFERS)
1626                         || !in_range(t.rspq_size, MIN_RSPQ_ENTRIES,
1627                                         MAX_RSPQ_ENTRIES))
1628                         return -EINVAL;
1629                 if ((adapter->flags & FULL_INIT_DONE) &&
1630                         (t.rspq_size >= 0 || t.fl_size[0] >= 0 ||
1631                         t.fl_size[1] >= 0 || t.txq_size[0] >= 0 ||
1632                         t.txq_size[1] >= 0 || t.txq_size[2] >= 0 ||
1633                         t.polling >= 0 || t.cong_thres >= 0))
1634                         return -EBUSY;
1635
1636                 q = &adapter->params.sge.qset[t.qset_idx];
1637
1638                 if (t.rspq_size >= 0)
1639                         q->rspq_size = t.rspq_size;
1640                 if (t.fl_size[0] >= 0)
1641                         q->fl_size = t.fl_size[0];
1642                 if (t.fl_size[1] >= 0)
1643                         q->jumbo_size = t.fl_size[1];
1644                 if (t.txq_size[0] >= 0)
1645                         q->txq_size[0] = t.txq_size[0];
1646                 if (t.txq_size[1] >= 0)
1647                         q->txq_size[1] = t.txq_size[1];
1648                 if (t.txq_size[2] >= 0)
1649                         q->txq_size[2] = t.txq_size[2];
1650                 if (t.cong_thres >= 0)
1651                         q->cong_thres = t.cong_thres;
1652                 if (t.intr_lat >= 0) {
1653                         struct sge_qset *qs =
1654                                 &adapter->sge.qs[t.qset_idx];
1655
1656                         q->coalesce_usecs = t.intr_lat;
1657                         t3_update_qset_coalesce(qs, q);
1658                 }
1659                 if (t.polling >= 0) {
1660                         if (adapter->flags & USING_MSIX)
1661                                 q->polling = t.polling;
1662                         else {
1663                                 /* No polling with INTx for T3A */
1664                                 if (adapter->params.rev == 0 &&
1665                                         !(adapter->flags & USING_MSI))
1666                                         t.polling = 0;
1667
1668                                 for (i = 0; i < SGE_QSETS; i++) {
1669                                         q = &adapter->params.sge.
1670                                                 qset[i];
1671                                         q->polling = t.polling;
1672                                 }
1673                         }
1674                 }
1675                 break;
1676         }
1677         case CHELSIO_GET_QSET_PARAMS:{
1678                 struct qset_params *q;
1679                 struct ch_qset_params t;
1680
1681                 if (copy_from_user(&t, useraddr, sizeof(t)))
1682                         return -EFAULT;
1683                 if (t.qset_idx >= SGE_QSETS)
1684                         return -EINVAL;
1685
1686                 q = &adapter->params.sge.qset[t.qset_idx];
1687                 t.rspq_size = q->rspq_size;
1688                 t.txq_size[0] = q->txq_size[0];
1689                 t.txq_size[1] = q->txq_size[1];
1690                 t.txq_size[2] = q->txq_size[2];
1691                 t.fl_size[0] = q->fl_size;
1692                 t.fl_size[1] = q->jumbo_size;
1693                 t.polling = q->polling;
1694                 t.intr_lat = q->coalesce_usecs;
1695                 t.cong_thres = q->cong_thres;
1696
1697                 if (copy_to_user(useraddr, &t, sizeof(t)))
1698                         return -EFAULT;
1699                 break;
1700         }
1701         case CHELSIO_SET_QSET_NUM:{
1702                 struct ch_reg edata;
1703                 struct port_info *pi = netdev_priv(dev);
1704                 unsigned int i, first_qset = 0, other_qsets = 0;
1705
1706                 if (!capable(CAP_NET_ADMIN))
1707                         return -EPERM;
1708                 if (adapter->flags & FULL_INIT_DONE)
1709                         return -EBUSY;
1710                 if (copy_from_user(&edata, useraddr, sizeof(edata)))
1711                         return -EFAULT;
1712                 if (edata.val < 1 ||
1713                         (edata.val > 1 && !(adapter->flags & USING_MSIX)))
1714                         return -EINVAL;
1715
1716                 for_each_port(adapter, i)
1717                         if (adapter->port[i] && adapter->port[i] != dev)
1718                                 other_qsets += adap2pinfo(adapter, i)->nqsets;
1719
1720                 if (edata.val + other_qsets > SGE_QSETS)
1721                         return -EINVAL;
1722
1723                 pi->nqsets = edata.val;
1724
1725                 for_each_port(adapter, i)
1726                         if (adapter->port[i]) {
1727                                 pi = adap2pinfo(adapter, i);
1728                                 pi->first_qset = first_qset;
1729                                 first_qset += pi->nqsets;
1730                         }
1731                 break;
1732         }
1733         case CHELSIO_GET_QSET_NUM:{
1734                 struct ch_reg edata;
1735                 struct port_info *pi = netdev_priv(dev);
1736
1737                 edata.cmd = CHELSIO_GET_QSET_NUM;
1738                 edata.val = pi->nqsets;
1739                 if (copy_to_user(useraddr, &edata, sizeof(edata)))
1740                         return -EFAULT;
1741                 break;
1742         }
1743         case CHELSIO_LOAD_FW:{
1744                 u8 *fw_data;
1745                 struct ch_mem_range t;
1746
1747                 if (!capable(CAP_NET_ADMIN))
1748                         return -EPERM;
1749                 if (copy_from_user(&t, useraddr, sizeof(t)))
1750                         return -EFAULT;
1751
1752                 fw_data = kmalloc(t.len, GFP_KERNEL);
1753                 if (!fw_data)
1754                         return -ENOMEM;
1755
1756                 if (copy_from_user
1757                         (fw_data, useraddr + sizeof(t), t.len)) {
1758                         kfree(fw_data);
1759                         return -EFAULT;
1760                 }
1761
1762                 ret = t3_load_fw(adapter, fw_data, t.len);
1763                 kfree(fw_data);
1764                 if (ret)
1765                         return ret;
1766                 break;
1767         }
1768         case CHELSIO_SETMTUTAB:{
1769                 struct ch_mtus m;
1770                 int i;
1771
1772                 if (!is_offload(adapter))
1773                         return -EOPNOTSUPP;
1774                 if (!capable(CAP_NET_ADMIN))
1775                         return -EPERM;
1776                 if (offload_running(adapter))
1777                         return -EBUSY;
1778                 if (copy_from_user(&m, useraddr, sizeof(m)))
1779                         return -EFAULT;
1780                 if (m.nmtus != NMTUS)
1781                         return -EINVAL;
1782                 if (m.mtus[0] < 81)     /* accommodate SACK */
1783                         return -EINVAL;
1784
1785                 /* MTUs must be in ascending order */
1786                 for (i = 1; i < NMTUS; ++i)
1787                         if (m.mtus[i] < m.mtus[i - 1])
1788                                 return -EINVAL;
1789
1790                 memcpy(adapter->params.mtus, m.mtus,
1791                         sizeof(adapter->params.mtus));
1792                 break;
1793         }
1794         case CHELSIO_GET_PM:{
1795                 struct tp_params *p = &adapter->params.tp;
1796                 struct ch_pm m = {.cmd = CHELSIO_GET_PM };
1797
1798                 if (!is_offload(adapter))
1799                         return -EOPNOTSUPP;
1800                 m.tx_pg_sz = p->tx_pg_size;
1801                 m.tx_num_pg = p->tx_num_pgs;
1802                 m.rx_pg_sz = p->rx_pg_size;
1803                 m.rx_num_pg = p->rx_num_pgs;
1804                 m.pm_total = p->pmtx_size + p->chan_rx_size * p->nchan;
1805                 if (copy_to_user(useraddr, &m, sizeof(m)))
1806                         return -EFAULT;
1807                 break;
1808         }
1809         case CHELSIO_SET_PM:{
1810                 struct ch_pm m;
1811                 struct tp_params *p = &adapter->params.tp;
1812
1813                 if (!is_offload(adapter))
1814                         return -EOPNOTSUPP;
1815                 if (!capable(CAP_NET_ADMIN))
1816                         return -EPERM;
1817                 if (adapter->flags & FULL_INIT_DONE)
1818                         return -EBUSY;
1819                 if (copy_from_user(&m, useraddr, sizeof(m)))
1820                         return -EFAULT;
1821                 if (!is_power_of_2(m.rx_pg_sz) ||
1822                         !is_power_of_2(m.tx_pg_sz))
1823                         return -EINVAL; /* not power of 2 */
1824                 if (!(m.rx_pg_sz & 0x14000))
1825                         return -EINVAL; /* not 16KB or 64KB */
1826                 if (!(m.tx_pg_sz & 0x1554000))
1827                         return -EINVAL;
1828                 if (m.tx_num_pg == -1)
1829                         m.tx_num_pg = p->tx_num_pgs;
1830                 if (m.rx_num_pg == -1)
1831                         m.rx_num_pg = p->rx_num_pgs;
1832                 if (m.tx_num_pg % 24 || m.rx_num_pg % 24)
1833                         return -EINVAL;
1834                 if (m.rx_num_pg * m.rx_pg_sz > p->chan_rx_size ||
1835                         m.tx_num_pg * m.tx_pg_sz > p->chan_tx_size)
1836                         return -EINVAL;
1837                 p->rx_pg_size = m.rx_pg_sz;
1838                 p->tx_pg_size = m.tx_pg_sz;
1839                 p->rx_num_pgs = m.rx_num_pg;
1840                 p->tx_num_pgs = m.tx_num_pg;
1841                 break;
1842         }
1843         case CHELSIO_GET_MEM:{
1844                 struct ch_mem_range t;
1845                 struct mc7 *mem;
1846                 u64 buf[32];
1847
1848                 if (!is_offload(adapter))
1849                         return -EOPNOTSUPP;
1850                 if (!(adapter->flags & FULL_INIT_DONE))
1851                         return -EIO;    /* need the memory controllers */
1852                 if (copy_from_user(&t, useraddr, sizeof(t)))
1853                         return -EFAULT;
1854                 if ((t.addr & 7) || (t.len & 7))
1855                         return -EINVAL;
1856                 if (t.mem_id == MEM_CM)
1857                         mem = &adapter->cm;
1858                 else if (t.mem_id == MEM_PMRX)
1859                         mem = &adapter->pmrx;
1860                 else if (t.mem_id == MEM_PMTX)
1861                         mem = &adapter->pmtx;
1862                 else
1863                         return -EINVAL;
1864
1865                 /*
1866                  * Version scheme:
1867                  * bits 0..9: chip version
1868                  * bits 10..15: chip revision
1869                  */
1870                 t.version = 3 | (adapter->params.rev << 10);
1871                 if (copy_to_user(useraddr, &t, sizeof(t)))
1872                         return -EFAULT;
1873
1874                 /*
1875                  * Read 256 bytes at a time as len can be large and we don't
1876                  * want to use huge intermediate buffers.
1877                  */
1878                 useraddr += sizeof(t);  /* advance to start of buffer */
1879                 while (t.len) {
1880                         unsigned int chunk =
1881                                 min_t(unsigned int, t.len, sizeof(buf));
1882
1883                         ret =
1884                                 t3_mc7_bd_read(mem, t.addr / 8, chunk / 8,
1885                                                 buf);
1886                         if (ret)
1887                                 return ret;
1888                         if (copy_to_user(useraddr, buf, chunk))
1889                                 return -EFAULT;
1890                         useraddr += chunk;
1891                         t.addr += chunk;
1892                         t.len -= chunk;
1893                 }
1894                 break;
1895         }
1896         case CHELSIO_SET_TRACE_FILTER:{
1897                 struct ch_trace t;
1898                 const struct trace_params *tp;
1899
1900                 if (!capable(CAP_NET_ADMIN))
1901                         return -EPERM;
1902                 if (!offload_running(adapter))
1903                         return -EAGAIN;
1904                 if (copy_from_user(&t, useraddr, sizeof(t)))
1905                         return -EFAULT;
1906
1907                 tp = (const struct trace_params *)&t.sip;
1908                 if (t.config_tx)
1909                         t3_config_trace_filter(adapter, tp, 0,
1910                                                 t.invert_match,
1911                                                 t.trace_tx);
1912                 if (t.config_rx)
1913                         t3_config_trace_filter(adapter, tp, 1,
1914                                                 t.invert_match,
1915                                                 t.trace_rx);
1916                 break;
1917         }
1918         default:
1919                 return -EOPNOTSUPP;
1920         }
1921         return 0;
1922 }
1923
1924 static int cxgb_ioctl(struct net_device *dev, struct ifreq *req, int cmd)
1925 {
1926         int ret, mmd;
1927         struct adapter *adapter = dev->priv;
1928         struct port_info *pi = netdev_priv(dev);
1929         struct mii_ioctl_data *data = if_mii(req);
1930
1931         switch (cmd) {
1932         case SIOCGMIIPHY:
1933                 data->phy_id = pi->phy.addr;
1934                 /* FALLTHRU */
1935         case SIOCGMIIREG:{
1936                 u32 val;
1937                 struct cphy *phy = &pi->phy;
1938
1939                 if (!phy->mdio_read)
1940                         return -EOPNOTSUPP;
1941                 if (is_10G(adapter)) {
1942                         mmd = data->phy_id >> 8;
1943                         if (!mmd)
1944                                 mmd = MDIO_DEV_PCS;
1945                         else if (mmd > MDIO_DEV_XGXS)
1946                                 return -EINVAL;
1947
1948                         ret =
1949                                 phy->mdio_read(adapter, data->phy_id & 0x1f,
1950                                                 mmd, data->reg_num, &val);
1951                 } else
1952                         ret =
1953                                 phy->mdio_read(adapter, data->phy_id & 0x1f,
1954                                                 0, data->reg_num & 0x1f,
1955                                                 &val);
1956                 if (!ret)
1957                         data->val_out = val;
1958                 break;
1959         }
1960         case SIOCSMIIREG:{
1961                 struct cphy *phy = &pi->phy;
1962
1963                 if (!capable(CAP_NET_ADMIN))
1964                         return -EPERM;
1965                 if (!phy->mdio_write)
1966                         return -EOPNOTSUPP;
1967                 if (is_10G(adapter)) {
1968                         mmd = data->phy_id >> 8;
1969                         if (!mmd)
1970                                 mmd = MDIO_DEV_PCS;
1971                         else if (mmd > MDIO_DEV_XGXS)
1972                                 return -EINVAL;
1973
1974                         ret =
1975                                 phy->mdio_write(adapter,
1976                                                 data->phy_id & 0x1f, mmd,
1977                                                 data->reg_num,
1978                                                 data->val_in);
1979                 } else
1980                         ret =
1981                                 phy->mdio_write(adapter,
1982                                                 data->phy_id & 0x1f, 0,
1983                                                 data->reg_num & 0x1f,
1984                                                 data->val_in);
1985                 break;
1986         }
1987         case SIOCCHIOCTL:
1988                 return cxgb_extension_ioctl(dev, req->ifr_data);
1989         default:
1990                 return -EOPNOTSUPP;
1991         }
1992         return ret;
1993 }
1994
1995 static int cxgb_change_mtu(struct net_device *dev, int new_mtu)
1996 {
1997         int ret;
1998         struct adapter *adapter = dev->priv;
1999         struct port_info *pi = netdev_priv(dev);
2000
2001         if (new_mtu < 81)       /* accommodate SACK */
2002                 return -EINVAL;
2003         if ((ret = t3_mac_set_mtu(&pi->mac, new_mtu)))
2004                 return ret;
2005         dev->mtu = new_mtu;
2006         init_port_mtus(adapter);
2007         if (adapter->params.rev == 0 && offload_running(adapter))
2008                 t3_load_mtus(adapter, adapter->params.mtus,
2009                              adapter->params.a_wnd, adapter->params.b_wnd,
2010                              adapter->port[0]->mtu);
2011         return 0;
2012 }
2013
2014 static int cxgb_set_mac_addr(struct net_device *dev, void *p)
2015 {
2016         struct adapter *adapter = dev->priv;
2017         struct port_info *pi = netdev_priv(dev);
2018         struct sockaddr *addr = p;
2019
2020         if (!is_valid_ether_addr(addr->sa_data))
2021                 return -EINVAL;
2022
2023         memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
2024         t3_mac_set_address(&pi->mac, 0, dev->dev_addr);
2025         if (offload_running(adapter))
2026                 write_smt_entry(adapter, pi->port_id);
2027         return 0;
2028 }
2029
2030 /**
2031  * t3_synchronize_rx - wait for current Rx processing on a port to complete
2032  * @adap: the adapter
2033  * @p: the port
2034  *
2035  * Ensures that current Rx processing on any of the queues associated with
2036  * the given port completes before returning.  We do this by acquiring and
2037  * releasing the locks of the response queues associated with the port.
2038  */
2039 static void t3_synchronize_rx(struct adapter *adap, const struct port_info *p)
2040 {
2041         int i;
2042
2043         for (i = 0; i < p->nqsets; i++) {
2044                 struct sge_rspq *q = &adap->sge.qs[i + p->first_qset].rspq;
2045
2046                 spin_lock_irq(&q->lock);
2047                 spin_unlock_irq(&q->lock);
2048         }
2049 }
2050
2051 static void vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
2052 {
2053         struct adapter *adapter = dev->priv;
2054         struct port_info *pi = netdev_priv(dev);
2055
2056         pi->vlan_grp = grp;
2057         if (adapter->params.rev > 0)
2058                 t3_set_vlan_accel(adapter, 1 << pi->port_id, grp != NULL);
2059         else {
2060                 /* single control for all ports */
2061                 unsigned int i, have_vlans = 0;
2062                 for_each_port(adapter, i)
2063                     have_vlans |= adap2pinfo(adapter, i)->vlan_grp != NULL;
2064
2065                 t3_set_vlan_accel(adapter, 1, have_vlans);
2066         }
2067         t3_synchronize_rx(adapter, pi);
2068 }
2069
2070 #ifdef CONFIG_NET_POLL_CONTROLLER
2071 static void cxgb_netpoll(struct net_device *dev)
2072 {
2073         struct adapter *adapter = dev->priv;
2074         struct port_info *pi = netdev_priv(dev);
2075         int qidx;
2076
2077         for (qidx = pi->first_qset; qidx < pi->first_qset + pi->nqsets; qidx++) {
2078                 struct sge_qset *qs = &adapter->sge.qs[qidx];
2079                 void *source;
2080
2081                 if (adapter->flags & USING_MSIX)
2082                         source = qs;
2083                 else
2084                         source = adapter;
2085
2086                 t3_intr_handler(adapter, qs->rspq.polling) (0, source);
2087         }
2088 }
2089 #endif
2090
2091 #define TPSRAM_NAME "t3%c_protocol_sram-%d.%d.%d.bin"
2092 int update_tpsram(struct adapter *adap)
2093 {
2094         const struct firmware *tpsram;
2095         char buf[64];
2096         struct device *dev = &adap->pdev->dev;
2097         int ret;
2098         char rev;
2099
2100         rev = adap->params.rev == T3_REV_B2 ? 'b' : 'a';
2101
2102         snprintf(buf, sizeof(buf), TPSRAM_NAME, rev,
2103                  TP_VERSION_MAJOR, TP_VERSION_MINOR, TP_VERSION_MICRO);
2104
2105         ret = request_firmware(&tpsram, buf, dev);
2106         if (ret < 0) {
2107                 dev_err(dev, "could not load TP SRAM: unable to load %s\n",
2108                         buf);
2109                 return ret;
2110         }
2111
2112         ret = t3_check_tpsram(adap, tpsram->data, tpsram->size);
2113         if (ret)
2114                 goto release_tpsram;
2115
2116         ret = t3_set_proto_sram(adap, tpsram->data);
2117         if (ret)
2118                 dev_err(dev, "loading protocol SRAM failed\n");
2119
2120 release_tpsram:
2121         release_firmware(tpsram);
2122
2123         return ret;
2124 }
2125
2126
2127 /*
2128  * Periodic accumulation of MAC statistics.
2129  */
2130 static void mac_stats_update(struct adapter *adapter)
2131 {
2132         int i;
2133
2134         for_each_port(adapter, i) {
2135                 struct net_device *dev = adapter->port[i];
2136                 struct port_info *p = netdev_priv(dev);
2137
2138                 if (netif_running(dev)) {
2139                         spin_lock(&adapter->stats_lock);
2140                         t3_mac_update_stats(&p->mac);
2141                         spin_unlock(&adapter->stats_lock);
2142                 }
2143         }
2144 }
2145
2146 static void check_link_status(struct adapter *adapter)
2147 {
2148         int i;
2149
2150         for_each_port(adapter, i) {
2151                 struct net_device *dev = adapter->port[i];
2152                 struct port_info *p = netdev_priv(dev);
2153
2154                 if (!(p->port_type->caps & SUPPORTED_IRQ) && netif_running(dev))
2155                         t3_link_changed(adapter, i);
2156         }
2157 }
2158
2159 static void check_t3b2_mac(struct adapter *adapter)
2160 {
2161         int i;
2162
2163         if (!rtnl_trylock())    /* synchronize with ifdown */
2164                 return;
2165
2166         for_each_port(adapter, i) {
2167                 struct net_device *dev = adapter->port[i];
2168                 struct port_info *p = netdev_priv(dev);
2169                 int status;
2170
2171                 if (!netif_running(dev))
2172                         continue;
2173
2174                 status = 0;
2175                 if (netif_running(dev) && netif_carrier_ok(dev))
2176                         status = t3b2_mac_watchdog_task(&p->mac);
2177                 if (status == 1)
2178                         p->mac.stats.num_toggled++;
2179                 else if (status == 2) {
2180                         struct cmac *mac = &p->mac;
2181
2182                         t3_mac_set_mtu(mac, dev->mtu);
2183                         t3_mac_set_address(mac, 0, dev->dev_addr);
2184                         cxgb_set_rxmode(dev);
2185                         t3_link_start(&p->phy, mac, &p->link_config);
2186                         t3_mac_enable(mac, MAC_DIRECTION_RX | MAC_DIRECTION_TX);
2187                         t3_port_intr_enable(adapter, p->port_id);
2188                         p->mac.stats.num_resets++;
2189                 }
2190         }
2191         rtnl_unlock();
2192 }
2193
2194
2195 static void t3_adap_check_task(struct work_struct *work)
2196 {
2197         struct adapter *adapter = container_of(work, struct adapter,
2198                                                adap_check_task.work);
2199         const struct adapter_params *p = &adapter->params;
2200
2201         adapter->check_task_cnt++;
2202
2203         /* Check link status for PHYs without interrupts */
2204         if (p->linkpoll_period)
2205                 check_link_status(adapter);
2206
2207         /* Accumulate MAC stats if needed */
2208         if (!p->linkpoll_period ||
2209             (adapter->check_task_cnt * p->linkpoll_period) / 10 >=
2210             p->stats_update_period) {
2211                 mac_stats_update(adapter);
2212                 adapter->check_task_cnt = 0;
2213         }
2214
2215         if (p->rev == T3_REV_B2)
2216                 check_t3b2_mac(adapter);
2217
2218         /* Schedule the next check update if any port is active. */
2219         spin_lock(&adapter->work_lock);
2220         if (adapter->open_device_map & PORT_MASK)
2221                 schedule_chk_task(adapter);
2222         spin_unlock(&adapter->work_lock);
2223 }
2224
2225 /*
2226  * Processes external (PHY) interrupts in process context.
2227  */
2228 static void ext_intr_task(struct work_struct *work)
2229 {
2230         struct adapter *adapter = container_of(work, struct adapter,
2231                                                ext_intr_handler_task);
2232
2233         t3_phy_intr_handler(adapter);
2234
2235         /* Now reenable external interrupts */
2236         spin_lock_irq(&adapter->work_lock);
2237         if (adapter->slow_intr_mask) {
2238                 adapter->slow_intr_mask |= F_T3DBG;
2239                 t3_write_reg(adapter, A_PL_INT_CAUSE0, F_T3DBG);
2240                 t3_write_reg(adapter, A_PL_INT_ENABLE0,
2241                              adapter->slow_intr_mask);
2242         }
2243         spin_unlock_irq(&adapter->work_lock);
2244 }
2245
2246 /*
2247  * Interrupt-context handler for external (PHY) interrupts.
2248  */
2249 void t3_os_ext_intr_handler(struct adapter *adapter)
2250 {
2251         /*
2252          * Schedule a task to handle external interrupts as they may be slow
2253          * and we use a mutex to protect MDIO registers.  We disable PHY
2254          * interrupts in the meantime and let the task reenable them when
2255          * it's done.
2256          */
2257         spin_lock(&adapter->work_lock);
2258         if (adapter->slow_intr_mask) {
2259                 adapter->slow_intr_mask &= ~F_T3DBG;
2260                 t3_write_reg(adapter, A_PL_INT_ENABLE0,
2261                              adapter->slow_intr_mask);
2262                 queue_work(cxgb3_wq, &adapter->ext_intr_handler_task);
2263         }
2264         spin_unlock(&adapter->work_lock);
2265 }
2266
2267 void t3_fatal_err(struct adapter *adapter)
2268 {
2269         unsigned int fw_status[4];
2270
2271         if (adapter->flags & FULL_INIT_DONE) {
2272                 t3_sge_stop(adapter);
2273                 t3_intr_disable(adapter);
2274         }
2275         CH_ALERT(adapter, "encountered fatal error, operation suspended\n");
2276         if (!t3_cim_ctl_blk_read(adapter, 0xa0, 4, fw_status))
2277                 CH_ALERT(adapter, "FW status: 0x%x, 0x%x, 0x%x, 0x%x\n",
2278                          fw_status[0], fw_status[1],
2279                          fw_status[2], fw_status[3]);
2280
2281 }
2282
2283 static int __devinit cxgb_enable_msix(struct adapter *adap)
2284 {
2285         struct msix_entry entries[SGE_QSETS + 1];
2286         int i, err;
2287
2288         for (i = 0; i < ARRAY_SIZE(entries); ++i)
2289                 entries[i].entry = i;
2290
2291         err = pci_enable_msix(adap->pdev, entries, ARRAY_SIZE(entries));
2292         if (!err) {
2293                 for (i = 0; i < ARRAY_SIZE(entries); ++i)
2294                         adap->msix_info[i].vec = entries[i].vector;
2295         } else if (err > 0)
2296                 dev_info(&adap->pdev->dev,
2297                        "only %d MSI-X vectors left, not using MSI-X\n", err);
2298         return err;
2299 }
2300
2301 static void __devinit print_port_info(struct adapter *adap,
2302                                       const struct adapter_info *ai)
2303 {
2304         static const char *pci_variant[] = {
2305                 "PCI", "PCI-X", "PCI-X ECC", "PCI-X 266", "PCI Express"
2306         };
2307
2308         int i;
2309         char buf[80];
2310
2311         if (is_pcie(adap))
2312                 snprintf(buf, sizeof(buf), "%s x%d",
2313                          pci_variant[adap->params.pci.variant],
2314                          adap->params.pci.width);
2315         else
2316                 snprintf(buf, sizeof(buf), "%s %dMHz/%d-bit",
2317                          pci_variant[adap->params.pci.variant],
2318                          adap->params.pci.speed, adap->params.pci.width);
2319
2320         for_each_port(adap, i) {
2321                 struct net_device *dev = adap->port[i];
2322                 const struct port_info *pi = netdev_priv(dev);
2323
2324                 if (!test_bit(i, &adap->registered_device_map))
2325                         continue;
2326                 printk(KERN_INFO "%s: %s %s %sNIC (rev %d) %s%s\n",
2327                        dev->name, ai->desc, pi->port_type->desc,
2328                        is_offload(adap) ? "R" : "", adap->params.rev, buf,
2329                        (adap->flags & USING_MSIX) ? " MSI-X" :
2330                        (adap->flags & USING_MSI) ? " MSI" : "");
2331                 if (adap->name == dev->name && adap->params.vpd.mclk)
2332                         printk(KERN_INFO "%s: %uMB CM, %uMB PMTX, %uMB PMRX\n",
2333                                adap->name, t3_mc7_size(&adap->cm) >> 20,
2334                                t3_mc7_size(&adap->pmtx) >> 20,
2335                                t3_mc7_size(&adap->pmrx) >> 20);
2336         }
2337 }
2338
2339 static int __devinit init_one(struct pci_dev *pdev,
2340                               const struct pci_device_id *ent)
2341 {
2342         static int version_printed;
2343
2344         int i, err, pci_using_dac = 0;
2345         unsigned long mmio_start, mmio_len;
2346         const struct adapter_info *ai;
2347         struct adapter *adapter = NULL;
2348         struct port_info *pi;
2349
2350         if (!version_printed) {
2351                 printk(KERN_INFO "%s - version %s\n", DRV_DESC, DRV_VERSION);
2352                 ++version_printed;
2353         }
2354
2355         if (!cxgb3_wq) {
2356                 cxgb3_wq = create_singlethread_workqueue(DRV_NAME);
2357                 if (!cxgb3_wq) {
2358                         printk(KERN_ERR DRV_NAME
2359                                ": cannot initialize work queue\n");
2360                         return -ENOMEM;
2361                 }
2362         }
2363
2364         err = pci_request_regions(pdev, DRV_NAME);
2365         if (err) {
2366                 /* Just info, some other driver may have claimed the device. */
2367                 dev_info(&pdev->dev, "cannot obtain PCI resources\n");
2368                 return err;
2369         }
2370
2371         err = pci_enable_device(pdev);
2372         if (err) {
2373                 dev_err(&pdev->dev, "cannot enable PCI device\n");
2374                 goto out_release_regions;
2375         }
2376
2377         if (!pci_set_dma_mask(pdev, DMA_64BIT_MASK)) {
2378                 pci_using_dac = 1;
2379                 err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
2380                 if (err) {
2381                         dev_err(&pdev->dev, "unable to obtain 64-bit DMA for "
2382                                "coherent allocations\n");
2383                         goto out_disable_device;
2384                 }
2385         } else if ((err = pci_set_dma_mask(pdev, DMA_32BIT_MASK)) != 0) {
2386                 dev_err(&pdev->dev, "no usable DMA configuration\n");
2387                 goto out_disable_device;
2388         }
2389
2390         pci_set_master(pdev);
2391
2392         mmio_start = pci_resource_start(pdev, 0);
2393         mmio_len = pci_resource_len(pdev, 0);
2394         ai = t3_get_adapter_info(ent->driver_data);
2395
2396         adapter = kzalloc(sizeof(*adapter), GFP_KERNEL);
2397         if (!adapter) {
2398                 err = -ENOMEM;
2399                 goto out_disable_device;
2400         }
2401
2402         adapter->regs = ioremap_nocache(mmio_start, mmio_len);
2403         if (!adapter->regs) {
2404                 dev_err(&pdev->dev, "cannot map device registers\n");
2405                 err = -ENOMEM;
2406                 goto out_free_adapter;
2407         }
2408
2409         adapter->pdev = pdev;
2410         adapter->name = pci_name(pdev);
2411         adapter->msg_enable = dflt_msg_enable;
2412         adapter->mmio_len = mmio_len;
2413
2414         mutex_init(&adapter->mdio_lock);
2415         spin_lock_init(&adapter->work_lock);
2416         spin_lock_init(&adapter->stats_lock);
2417
2418         INIT_LIST_HEAD(&adapter->adapter_list);
2419         INIT_WORK(&adapter->ext_intr_handler_task, ext_intr_task);
2420         INIT_DELAYED_WORK(&adapter->adap_check_task, t3_adap_check_task);
2421
2422         for (i = 0; i < ai->nports; ++i) {
2423                 struct net_device *netdev;
2424
2425                 netdev = alloc_etherdev(sizeof(struct port_info));
2426                 if (!netdev) {
2427                         err = -ENOMEM;
2428                         goto out_free_dev;
2429                 }
2430
2431                 SET_MODULE_OWNER(netdev);
2432                 SET_NETDEV_DEV(netdev, &pdev->dev);
2433
2434                 adapter->port[i] = netdev;
2435                 pi = netdev_priv(netdev);
2436                 pi->rx_csum_offload = 1;
2437                 pi->nqsets = 1;
2438                 pi->first_qset = i;
2439                 pi->activity = 0;
2440                 pi->port_id = i;
2441                 netif_carrier_off(netdev);
2442                 netdev->irq = pdev->irq;
2443                 netdev->mem_start = mmio_start;
2444                 netdev->mem_end = mmio_start + mmio_len - 1;
2445                 netdev->priv = adapter;
2446                 netdev->features |= NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO;
2447                 netdev->features |= NETIF_F_LLTX;
2448                 if (pci_using_dac)
2449                         netdev->features |= NETIF_F_HIGHDMA;
2450
2451                 netdev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
2452                 netdev->vlan_rx_register = vlan_rx_register;
2453
2454                 netdev->open = cxgb_open;
2455                 netdev->stop = cxgb_close;
2456                 netdev->hard_start_xmit = t3_eth_xmit;
2457                 netdev->get_stats = cxgb_get_stats;
2458                 netdev->set_multicast_list = cxgb_set_rxmode;
2459                 netdev->do_ioctl = cxgb_ioctl;
2460                 netdev->change_mtu = cxgb_change_mtu;
2461                 netdev->set_mac_address = cxgb_set_mac_addr;
2462 #ifdef CONFIG_NET_POLL_CONTROLLER
2463                 netdev->poll_controller = cxgb_netpoll;
2464 #endif
2465                 netdev->weight = 64;
2466
2467                 SET_ETHTOOL_OPS(netdev, &cxgb_ethtool_ops);
2468         }
2469
2470         pci_set_drvdata(pdev, adapter->port[0]);
2471         if (t3_prep_adapter(adapter, ai, 1) < 0) {
2472                 err = -ENODEV;
2473                 goto out_free_dev;
2474         }
2475
2476         err = t3_check_tpsram_version(adapter);
2477         if (err == -EINVAL)
2478                 err = update_tpsram(adapter);
2479
2480         if (err)
2481                 goto out_free_dev;
2482
2483         /*
2484          * The card is now ready to go.  If any errors occur during device
2485          * registration we do not fail the whole card but rather proceed only
2486          * with the ports we manage to register successfully.  However we must
2487          * register at least one net device.
2488          */
2489         for_each_port(adapter, i) {
2490                 err = register_netdev(adapter->port[i]);
2491                 if (err)
2492                         dev_warn(&pdev->dev,
2493                                  "cannot register net device %s, skipping\n",
2494                                  adapter->port[i]->name);
2495                 else {
2496                         /*
2497                          * Change the name we use for messages to the name of
2498                          * the first successfully registered interface.
2499                          */
2500                         if (!adapter->registered_device_map)
2501                                 adapter->name = adapter->port[i]->name;
2502
2503                         __set_bit(i, &adapter->registered_device_map);
2504                 }
2505         }
2506         if (!adapter->registered_device_map) {
2507                 dev_err(&pdev->dev, "could not register any net devices\n");
2508                 goto out_free_dev;
2509         }
2510
2511         /* Driver's ready. Reflect it on LEDs */
2512         t3_led_ready(adapter);
2513
2514         if (is_offload(adapter)) {
2515                 __set_bit(OFFLOAD_DEVMAP_BIT, &adapter->registered_device_map);
2516                 cxgb3_adapter_ofld(adapter);
2517         }
2518
2519         /* See what interrupts we'll be using */
2520         if (msi > 1 && cxgb_enable_msix(adapter) == 0)
2521                 adapter->flags |= USING_MSIX;
2522         else if (msi > 0 && pci_enable_msi(pdev) == 0)
2523                 adapter->flags |= USING_MSI;
2524
2525         err = sysfs_create_group(&adapter->port[0]->dev.kobj,
2526                                  &cxgb3_attr_group);
2527
2528         print_port_info(adapter, ai);
2529         return 0;
2530
2531 out_free_dev:
2532         iounmap(adapter->regs);
2533         for (i = ai->nports - 1; i >= 0; --i)
2534                 if (adapter->port[i])
2535                         free_netdev(adapter->port[i]);
2536
2537 out_free_adapter:
2538         kfree(adapter);
2539
2540 out_disable_device:
2541         pci_disable_device(pdev);
2542 out_release_regions:
2543         pci_release_regions(pdev);
2544         pci_set_drvdata(pdev, NULL);
2545         return err;
2546 }
2547
2548 static void __devexit remove_one(struct pci_dev *pdev)
2549 {
2550         struct net_device *dev = pci_get_drvdata(pdev);
2551
2552         if (dev) {
2553                 int i;
2554                 struct adapter *adapter = dev->priv;
2555
2556                 t3_sge_stop(adapter);
2557                 sysfs_remove_group(&adapter->port[0]->dev.kobj,
2558                                    &cxgb3_attr_group);
2559
2560                 for_each_port(adapter, i)
2561                     if (test_bit(i, &adapter->registered_device_map))
2562                         unregister_netdev(adapter->port[i]);
2563
2564                 if (is_offload(adapter)) {
2565                         cxgb3_adapter_unofld(adapter);
2566                         if (test_bit(OFFLOAD_DEVMAP_BIT,
2567                                      &adapter->open_device_map))
2568                                 offload_close(&adapter->tdev);
2569                 }
2570
2571                 t3_free_sge_resources(adapter);
2572                 cxgb_disable_msi(adapter);
2573
2574                 for (i = 0; i < ARRAY_SIZE(adapter->dummy_netdev); i++)
2575                         if (adapter->dummy_netdev[i]) {
2576                                 free_netdev(adapter->dummy_netdev[i]);
2577                                 adapter->dummy_netdev[i] = NULL;
2578                         }
2579
2580                 for_each_port(adapter, i)
2581                         if (adapter->port[i])
2582                                 free_netdev(adapter->port[i]);
2583
2584                 iounmap(adapter->regs);
2585                 kfree(adapter);
2586                 pci_release_regions(pdev);
2587                 pci_disable_device(pdev);
2588                 pci_set_drvdata(pdev, NULL);
2589         }
2590 }
2591
2592 static struct pci_driver driver = {
2593         .name = DRV_NAME,
2594         .id_table = cxgb3_pci_tbl,
2595         .probe = init_one,
2596         .remove = __devexit_p(remove_one),
2597 };
2598
2599 static int __init cxgb3_init_module(void)
2600 {
2601         int ret;
2602
2603         cxgb3_offload_init();
2604
2605         ret = pci_register_driver(&driver);
2606         return ret;
2607 }
2608
2609 static void __exit cxgb3_cleanup_module(void)
2610 {
2611         pci_unregister_driver(&driver);
2612         if (cxgb3_wq)
2613                 destroy_workqueue(cxgb3_wq);
2614 }
2615
2616 module_init(cxgb3_init_module);
2617 module_exit(cxgb3_cleanup_module);