drivers/infiniband/hw/nes/nes.c

   1 /*
   2  * Copyright (c) 2006 - 2011 Intel Corporation.  All rights reserved.
   3  * Copyright (c) 2005 Open Grid Computing, Inc. All rights reserved.
   4  *
   5  * This software is available to you under a choice of one of two
   6  * licenses.  You may choose to be licensed under the terms of the GNU
   7  * General Public License (GPL) Version 2, available from the file
   8  * COPYING in the main directory of this source tree, or the
   9  * OpenIB.org BSD license below:
  10  *
  11  *     Redistribution and use in source and binary forms, with or
  12  *     without modification, are permitted provided that the following
  13  *     conditions are met:
  14  *
  15  *      - Redistributions of source code must retain the above
  16  *        copyright notice, this list of conditions and the following
  17  *        disclaimer.
  18  *
  19  *      - Redistributions in binary form must reproduce the above
  20  *        copyright notice, this list of conditions and the following
  21  *        disclaimer in the documentation and/or other materials
  22  *        provided with the distribution.
  23  *
  24  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  25  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  26  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  27  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  28  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  29  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  30  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  31  * SOFTWARE.
  32  */
  33
  34 #include <linux/module.h>
  35 #include <linux/moduleparam.h>
  36 #include <linux/netdevice.h>
  37 #include <linux/etherdevice.h>
  38 #include <linux/ethtool.h>
  39 #include <linux/mii.h>
  40 #include <linux/if_vlan.h>
  41 #include <linux/crc32.h>
  42 #include <linux/in.h>
  43 #include <linux/fs.h>
  44 #include <linux/init.h>
  45 #include <linux/if_arp.h>
  46 #include <linux/highmem.h>
  47 #include <linux/slab.h>
  48 #include <asm/io.h>
  49 #include <asm/irq.h>
  50 #include <asm/byteorder.h>
  51 #include <rdma/ib_smi.h>
  52 #include <rdma/ib_verbs.h>
  53 #include <rdma/ib_pack.h>
  54 #include <rdma/iw_cm.h>
  55
  56 #include "nes.h"
  57
  58 #include <net/netevent.h>
  59 #include <net/neighbour.h>
  60 #include <linux/route.h>
  61 #include <net/ip_fib.h>
  62
  63 MODULE_AUTHOR("NetEffect");
  64 MODULE_DESCRIPTION("NetEffect RNIC Low-level iWARP Driver");
  65 MODULE_LICENSE("Dual BSD/GPL");
  66
  67 int interrupt_mod_interval = 0;
  68
  69 /* Interoperability */
  70 int mpa_version = 1;
  71 module_param(mpa_version, int, 0644);
  72 MODULE_PARM_DESC(mpa_version, "MPA version to be used int MPA Req/Resp (0 or 1)");
  73
  74 /* Interoperability */
  75 int disable_mpa_crc = 0;
  76 module_param(disable_mpa_crc, int, 0644);
  77 MODULE_PARM_DESC(disable_mpa_crc, "Disable checking of MPA CRC");
  78
  79 unsigned int nes_drv_opt = NES_DRV_OPT_DISABLE_INT_MOD | NES_DRV_OPT_ENABLE_PAU;
  80 module_param(nes_drv_opt, int, 0644);
  81 MODULE_PARM_DESC(nes_drv_opt, "Driver option parameters");
  82
  83 unsigned int nes_debug_level = 0;
  84 module_param_named(debug_level, nes_debug_level, uint, 0644);
  85 MODULE_PARM_DESC(debug_level, "Enable debug output level");
  86
  87 unsigned int wqm_quanta = 0x10000;
  88 module_param(wqm_quanta, int, 0644);
  89 MODULE_PARM_DESC(wqm_quanta, "WQM quanta");
  90
  91 static bool limit_maxrdreqsz;
  92 module_param(limit_maxrdreqsz, bool, 0644);
  93 MODULE_PARM_DESC(limit_maxrdreqsz, "Limit max read request size to 256 Bytes");
  94
  95 LIST_HEAD(nes_adapter_list);
  96 static LIST_HEAD(nes_dev_list);
  97
  98 atomic_t qps_destroyed;
  99
 100 static unsigned int ee_flsh_adapter;
 101 static unsigned int sysfs_nonidx_addr;
 102 static unsigned int sysfs_idx_addr;
 103
 104 static const struct pci_device_id nes_pci_table[] = {
 105         { PCI_VDEVICE(NETEFFECT, PCI_DEVICE_ID_NETEFFECT_NE020), },
 106         { PCI_VDEVICE(NETEFFECT, PCI_DEVICE_ID_NETEFFECT_NE020_KR), },
 107         {0}
 108 };
 109
 110 MODULE_DEVICE_TABLE(pci, nes_pci_table);
 111
 112 static int nes_inetaddr_event(struct notifier_block *, unsigned long, void *);
 113 static int nes_net_event(struct notifier_block *, unsigned long, void *);
 114 static int nes_notifiers_registered;
 115
 116
 117 static struct notifier_block nes_inetaddr_notifier = {
 118         .notifier_call = nes_inetaddr_event
 119 };
 120
 121 static struct notifier_block nes_net_notifier = {
 122         .notifier_call = nes_net_event
 123 };
 124
 125 /**
 126  * nes_inetaddr_event
 127  */
 128 static int nes_inetaddr_event(struct notifier_block *notifier,
 129                 unsigned long event, void *ptr)
 130 {
 131         struct in_ifaddr *ifa = ptr;
 132         struct net_device *event_netdev = ifa->ifa_dev->dev;
 133         struct nes_device *nesdev;
 134         struct net_device *netdev;
 135         struct net_device *upper_dev;
 136         struct nes_vnic *nesvnic;
 137         unsigned int is_bonded;
 138
 139         nes_debug(NES_DBG_NETDEV, "nes_inetaddr_event: ip address %pI4, netmask %pI4.\n",
 140                   &ifa->ifa_address, &ifa->ifa_mask);
 141         list_for_each_entry(nesdev, &nes_dev_list, list) {
 142                 nes_debug(NES_DBG_NETDEV, "Nesdev list entry = 0x%p. (%s)\n",
 143                                 nesdev, nesdev->netdev[0]->name);
 144                 netdev = nesdev->netdev[0];
 145                 nesvnic = netdev_priv(netdev);
 146                 upper_dev = netdev_master_upper_dev_get(netdev);
 147                 is_bonded = netif_is_bond_slave(netdev) &&
 148                             (upper_dev == event_netdev);
 149                 if ((netdev == event_netdev) || is_bonded) {
 150                         if (nesvnic->rdma_enabled == 0) {
 151                                 nes_debug(NES_DBG_NETDEV, "Returning without processing event for %s since"
 152                                                 " RDMA is not enabled.\n",
 153                                                 netdev->name);
 154                                 return NOTIFY_OK;
 155                         }
 156                         /* we have ifa->ifa_address/mask here if we need it */
 157                         switch (event) {
 158                                 case NETDEV_DOWN:
 159                                         nes_debug(NES_DBG_NETDEV, "event:DOWN\n");
 160                                         nes_write_indexed(nesdev,
 161                                                         NES_IDX_DST_IP_ADDR+(0x10*PCI_FUNC(nesdev->pcidev->devfn)), 0);
 162
 163                                         nes_manage_arp_cache(netdev, netdev->dev_addr,
 164                                                         ntohl(nesvnic->local_ipaddr), NES_ARP_DELETE);
 165                                         nesvnic->local_ipaddr = 0;
 166                                         if (is_bonded)
 167                                                 continue;
 168                                         else
 169                                                 return NOTIFY_OK;
 170                                         break;
 171                                 case NETDEV_UP:
 172                                         nes_debug(NES_DBG_NETDEV, "event:UP\n");
 173
 174                                         if (nesvnic->local_ipaddr != 0) {
 175                                                 nes_debug(NES_DBG_NETDEV, "Interface already has local_ipaddr\n");
 176                                                 return NOTIFY_OK;
 177                                         }
 178                                         /* fall through */
 179                                 case NETDEV_CHANGEADDR:
 180                                         /* Add the address to the IP table */
 181                                         if (upper_dev) {
 182                                                 struct in_device *in;
 183
 184                                                 rcu_read_lock();
 185                                                 in = __in_dev_get_rcu(upper_dev);
 186                                                 nesvnic->local_ipaddr = in->ifa_list->ifa_address;
 187                                                 rcu_read_unlock();
 188                                         } else {
 189                                                 nesvnic->local_ipaddr = ifa->ifa_address;
 190                                         }
 191
 192                                         nes_write_indexed(nesdev,
 193                                                         NES_IDX_DST_IP_ADDR+(0x10*PCI_FUNC(nesdev->pcidev->devfn)),
 194                                                         ntohl(nesvnic->local_ipaddr));
 195                                         nes_manage_arp_cache(netdev, netdev->dev_addr,
 196                                                         ntohl(nesvnic->local_ipaddr), NES_ARP_ADD);
 197                                         if (is_bonded)
 198                                                 continue;
 199                                         else
 200                                                 return NOTIFY_OK;
 201                                         break;
 202                                 default:
 203                                         break;
 204                         }
 205                 }
 206         }
 207
 208         return NOTIFY_DONE;
 209 }
 210
 211
 212 /**
 213  * nes_net_event
 214  */
 215 static int nes_net_event(struct notifier_block *notifier,
 216                 unsigned long event, void *ptr)
 217 {
 218         struct neighbour *neigh = ptr;
 219         struct nes_device *nesdev;
 220         struct net_device *netdev;
 221         struct nes_vnic *nesvnic;
 222
 223         switch (event) {
 224                 case NETEVENT_NEIGH_UPDATE:
 225                         list_for_each_entry(nesdev, &nes_dev_list, list) {
 226                                 /* nes_debug(NES_DBG_NETDEV, "Nesdev list entry = 0x%p.\n", nesdev); */
 227                                 netdev = nesdev->netdev[0];
 228                                 nesvnic = netdev_priv(netdev);
 229                                 if (netdev == neigh->dev) {
 230                                         if (nesvnic->rdma_enabled == 0) {
 231                                                 nes_debug(NES_DBG_NETDEV, "Skipping device %s since no RDMA\n",
 232                                                                 netdev->name);
 233                                         } else {
 234                                                 if (neigh->nud_state & NUD_VALID) {
 235                                                         nes_manage_arp_cache(neigh->dev, neigh->ha,
 236                                                                         ntohl(*(__be32 *)neigh->primary_key), NES_ARP_ADD);
 237                                                 } else {
 238                                                         nes_manage_arp_cache(neigh->dev, neigh->ha,
 239                                                                         ntohl(*(__be32 *)neigh->primary_key), NES_ARP_DELETE);
 240                                                 }
 241                                         }
 242                                         return NOTIFY_OK;
 243                                 }
 244                         }
 245                         break;
 246                 default:
 247                         nes_debug(NES_DBG_NETDEV, "NETEVENT_ %lu undefined\n", event);
 248                         break;
 249         }
 250
 251         return NOTIFY_DONE;
 252 }
 253
 254
 255 /**
 256  * nes_add_ref
 257  */
 258 void nes_add_ref(struct ib_qp *ibqp)
 259 {
 260         struct nes_qp *nesqp;
 261
 262         nesqp = to_nesqp(ibqp);
 263         nes_debug(NES_DBG_QP, "Bumping refcount for QP%u.  Pre-inc value = %u\n",
 264                         ibqp->qp_num, atomic_read(&nesqp->refcount));
 265         atomic_inc(&nesqp->refcount);
 266 }
 267
 268 static void nes_cqp_rem_ref_callback(struct nes_device *nesdev, struct nes_cqp_request *cqp_request)
 269 {
 270         unsigned long flags;
 271         struct nes_qp *nesqp = cqp_request->cqp_callback_pointer;
 272         struct nes_adapter *nesadapter = nesdev->nesadapter;
 273
 274         atomic_inc(&qps_destroyed);
 275
 276         /* Free the control structures */
 277
 278         if (nesqp->pbl_vbase) {
 279                 pci_free_consistent(nesdev->pcidev, nesqp->qp_mem_size,
 280                                 nesqp->hwqp.q2_vbase, nesqp->hwqp.q2_pbase);
 281                 spin_lock_irqsave(&nesadapter->pbl_lock, flags);
 282                 nesadapter->free_256pbl++;
 283                 spin_unlock_irqrestore(&nesadapter->pbl_lock, flags);
 284                 pci_free_consistent(nesdev->pcidev, 256, nesqp->pbl_vbase, nesqp->pbl_pbase);
 285                 nesqp->pbl_vbase = NULL;
 286
 287         } else {
 288                 pci_free_consistent(nesdev->pcidev, nesqp->qp_mem_size,
 289                                 nesqp->hwqp.sq_vbase, nesqp->hwqp.sq_pbase);
 290         }
 291         nes_free_resource(nesadapter, nesadapter->allocated_qps, nesqp->hwqp.qp_id);
 292
 293         nesadapter->qp_table[nesqp->hwqp.qp_id-NES_FIRST_QPN] = NULL;
 294         kfree(nesqp->allocated_buffer);
 295
 296 }
 297
 298 /**
 299  * nes_rem_ref
 300  */
 301 void nes_rem_ref(struct ib_qp *ibqp)
 302 {
 303         u64 u64temp;
 304         struct nes_qp *nesqp;
 305         struct nes_vnic *nesvnic = to_nesvnic(ibqp->device);
 306         struct nes_device *nesdev = nesvnic->nesdev;
 307         struct nes_hw_cqp_wqe *cqp_wqe;
 308         struct nes_cqp_request *cqp_request;
 309         u32 opcode;
 310
 311         nesqp = to_nesqp(ibqp);
 312
 313         if (atomic_read(&nesqp->refcount) == 0) {
 314                 printk(KERN_INFO PFX "%s: Reference count already 0 for QP%d, last aeq = 0x%04X.\n",
 315                                 __func__, ibqp->qp_num, nesqp->last_aeq);
 316                 BUG();
 317         }
 318
 319         if (atomic_dec_and_test(&nesqp->refcount)) {
 320                 if (nesqp->pau_mode)
 321                         nes_destroy_pau_qp(nesdev, nesqp);
 322
 323                 /* Destroy the QP */
 324                 cqp_request = nes_get_cqp_request(nesdev);
 325                 if (cqp_request == NULL) {
 326                         nes_debug(NES_DBG_QP, "Failed to get a cqp_request.\n");
 327                         return;
 328                 }
 329                 cqp_request->waiting = 0;
 330                 cqp_request->callback = 1;
 331                 cqp_request->cqp_callback = nes_cqp_rem_ref_callback;
 332                 cqp_request->cqp_callback_pointer = nesqp;
 333                 cqp_wqe = &cqp_request->cqp_wqe;
 334
 335                 nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
 336                 opcode = NES_CQP_DESTROY_QP | NES_CQP_QP_TYPE_IWARP;
 337
 338                 if (nesqp->hte_added) {
 339                         opcode  |= NES_CQP_QP_DEL_HTE;
 340                         nesqp->hte_added = 0;
 341                 }
 342                 set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, opcode);
 343                 set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX, nesqp->hwqp.qp_id);
 344                 u64temp = (u64)nesqp->nesqp_context_pbase;
 345                 set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_QP_WQE_CONTEXT_LOW_IDX, u64temp);
 346                 nes_post_cqp_request(nesdev, cqp_request);
 347         }
 348 }
 349
 350
 351 /**
 352  * nes_get_qp
 353  */
 354 struct ib_qp *nes_get_qp(struct ib_device *device, int qpn)
 355 {
 356         struct nes_vnic *nesvnic = to_nesvnic(device);
 357         struct nes_device *nesdev = nesvnic->nesdev;
 358         struct nes_adapter *nesadapter = nesdev->nesadapter;
 359
 360         if ((qpn < NES_FIRST_QPN) || (qpn >= (NES_FIRST_QPN + nesadapter->max_qp)))
 361                 return NULL;
 362
 363         return &nesadapter->qp_table[qpn - NES_FIRST_QPN]->ibqp;
 364 }
 365
 366
 367 /**
 368  * nes_print_macaddr
 369  */
 370 static void nes_print_macaddr(struct net_device *netdev)
 371 {
 372         nes_debug(NES_DBG_INIT, "%s: %pM, IRQ %u\n",
 373                   netdev->name, netdev->dev_addr, netdev->irq);
 374 }
 375
 376 /**
 377  * nes_interrupt - handle interrupts
 378  */
 379 static irqreturn_t nes_interrupt(int irq, void *dev_id)
 380 {
 381         struct nes_device *nesdev = (struct nes_device *)dev_id;
 382         int handled = 0;
 383         u32 int_mask;
 384         u32 int_req;
 385         u32 int_stat;
 386         u32 intf_int_stat;
 387         u32 timer_stat;
 388
 389         if (nesdev->msi_enabled) {
 390                 /* No need to read the interrupt pending register if msi is enabled */
 391                 handled = 1;
 392         } else {
 393                 if (unlikely(nesdev->nesadapter->hw_rev == NE020_REV)) {
 394                         /* Master interrupt enable provides synchronization for kicking off bottom half
 395                           when interrupt sharing is going on */
 396                         int_mask = nes_read32(nesdev->regs + NES_INT_MASK);
 397                         if (int_mask & 0x80000000) {
 398                                 /* Check interrupt status to see if this might be ours */
 399                                 int_stat = nes_read32(nesdev->regs + NES_INT_STAT);
 400                                 int_req = nesdev->int_req;
 401                                 if (int_stat&int_req) {
 402                                         /* if interesting CEQ or AEQ is pending, claim the interrupt */
 403                                         if ((int_stat&int_req) & (~(NES_INT_TIMER|NES_INT_INTF))) {
 404                                                 handled = 1;
 405                                         } else {
 406                                                 if (((int_stat & int_req) & NES_INT_TIMER) == NES_INT_TIMER) {
 407                                                         /* Timer might be running but might be for another function */
 408                                                         timer_stat = nes_read32(nesdev->regs + NES_TIMER_STAT);
 409                                                         if ((timer_stat & nesdev->timer_int_req) != 0) {
 410                                                                 handled = 1;
 411                                                         }
 412                                                 }
 413                                                 if ((((int_stat & int_req) & NES_INT_INTF) == NES_INT_INTF) &&
 414                                                                 (handled == 0)) {
 415                                                         intf_int_stat = nes_read32(nesdev->regs+NES_INTF_INT_STAT);
 416                                                         if ((intf_int_stat & nesdev->intf_int_req) != 0) {
 417                                                                 handled = 1;
 418                                                         }
 419                                                 }
 420                                         }
 421                                         if (handled) {
 422                                                 nes_write32(nesdev->regs+NES_INT_MASK, int_mask & (~0x80000000));
 423                                                 int_mask = nes_read32(nesdev->regs+NES_INT_MASK);
 424                                                 /* Save off the status to save an additional read */
 425                                                 nesdev->int_stat = int_stat;
 426                                                 nesdev->napi_isr_ran = 1;
 427                                         }
 428                                 }
 429                         }
 430                 } else {
 431                         handled = nes_read32(nesdev->regs+NES_INT_PENDING);
 432                 }
 433         }
 434
 435         if (handled) {
 436
 437                 if (nes_napi_isr(nesdev) == 0) {
 438                         tasklet_schedule(&nesdev->dpc_tasklet);
 439
 440                 }
 441                 return IRQ_HANDLED;
 442         } else {
 443                 return IRQ_NONE;
 444         }
 445 }
 446
 447
 448 /**
 449  * nes_probe - Device initialization
 450  */
 451 static int nes_probe(struct pci_dev *pcidev, const struct pci_device_id *ent)
 452 {
 453         struct net_device *netdev = NULL;
 454         struct nes_device *nesdev = NULL;
 455         int ret = 0;
 456         void __iomem *mmio_regs = NULL;
 457         u8 hw_rev;
 458
 459         printk(KERN_INFO PFX "NetEffect RNIC driver v%s loading. (%s)\n",
 460                         DRV_VERSION, pci_name(pcidev));
 461
 462         ret = pci_enable_device(pcidev);
 463         if (ret) {
 464                 printk(KERN_ERR PFX "Unable to enable PCI device. (%s)\n", pci_name(pcidev));
 465                 goto bail0;
 466         }
 467
 468         nes_debug(NES_DBG_INIT, "BAR0 (@0x%08lX) size = 0x%lX bytes\n",
 469                         (long unsigned int)pci_resource_start(pcidev, BAR_0),
 470                         (long unsigned int)pci_resource_len(pcidev, BAR_0));
 471         nes_debug(NES_DBG_INIT, "BAR1 (@0x%08lX) size = 0x%lX bytes\n",
 472                         (long unsigned int)pci_resource_start(pcidev, BAR_1),
 473                         (long unsigned int)pci_resource_len(pcidev, BAR_1));
 474
 475         /* Make sure PCI base addr are MMIO */
 476         if (!(pci_resource_flags(pcidev, BAR_0) & IORESOURCE_MEM) ||
 477                         !(pci_resource_flags(pcidev, BAR_1) & IORESOURCE_MEM)) {
 478                 printk(KERN_ERR PFX "PCI regions not an MMIO resource\n");
 479                 ret = -ENODEV;
 480                 goto bail1;
 481         }
 482
 483         /* Reserve PCI I/O and memory resources */
 484         ret = pci_request_regions(pcidev, DRV_NAME);
 485         if (ret) {
 486                 printk(KERN_ERR PFX "Unable to request regions. (%s)\n", pci_name(pcidev));
 487                 goto bail1;
 488         }
 489
 490         if ((sizeof(dma_addr_t) > 4)) {
 491                 ret = pci_set_dma_mask(pcidev, DMA_BIT_MASK(64));
 492                 if (ret < 0) {
 493                         printk(KERN_ERR PFX "64b DMA mask configuration failed\n");
 494                         goto bail2;
 495                 }
 496                 ret = pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(64));
 497                 if (ret) {
 498                         printk(KERN_ERR PFX "64b DMA consistent mask configuration failed\n");
 499                         goto bail2;
 500                 }
 501         } else {
 502                 ret = pci_set_dma_mask(pcidev, DMA_BIT_MASK(32));
 503                 if (ret < 0) {
 504                         printk(KERN_ERR PFX "32b DMA mask configuration failed\n");
 505                         goto bail2;
 506                 }
 507                 ret = pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(32));
 508                 if (ret) {
 509                         printk(KERN_ERR PFX "32b DMA consistent mask configuration failed\n");
 510                         goto bail2;
 511                 }
 512         }
 513
 514         pci_set_master(pcidev);
 515
 516         /* Allocate hardware structure */
 517         nesdev = kzalloc(sizeof(struct nes_device), GFP_KERNEL);
 518         if (!nesdev) {
 519                 ret = -ENOMEM;
 520                 goto bail2;
 521         }
 522
 523         nes_debug(NES_DBG_INIT, "Allocated nes device at %p\n", nesdev);
 524         nesdev->pcidev = pcidev;
 525         pci_set_drvdata(pcidev, nesdev);
 526
 527         pci_read_config_byte(pcidev, 0x0008, &hw_rev);
 528         nes_debug(NES_DBG_INIT, "hw_rev=%u\n", hw_rev);
 529
 530         spin_lock_init(&nesdev->indexed_regs_lock);
 531
 532         /* Remap the PCI registers in adapter BAR0 to kernel VA space */
 533         mmio_regs = ioremap_nocache(pci_resource_start(pcidev, BAR_0),
 534                                     pci_resource_len(pcidev, BAR_0));
 535         if (mmio_regs == NULL) {
 536                 printk(KERN_ERR PFX "Unable to remap BAR0\n");
 537                 ret = -EIO;
 538                 goto bail3;
 539         }
 540         nesdev->regs = mmio_regs;
 541         nesdev->index_reg = 0x50 + (PCI_FUNC(pcidev->devfn)*8) + mmio_regs;
 542
 543         /* Ensure interrupts are disabled */
 544         nes_write32(nesdev->regs+NES_INT_MASK, 0x7fffffff);
 545
 546         if (nes_drv_opt & NES_DRV_OPT_ENABLE_MSI) {
 547                 if (!pci_enable_msi(nesdev->pcidev)) {
 548                         nesdev->msi_enabled = 1;
 549                         nes_debug(NES_DBG_INIT, "MSI is enabled for device %s\n",
 550                                         pci_name(pcidev));
 551                 } else {
 552                         nes_debug(NES_DBG_INIT, "MSI is disabled by linux for device %s\n",
 553                                         pci_name(pcidev));
 554                 }
 555         } else {
 556                 nes_debug(NES_DBG_INIT, "MSI not requested due to driver options for device %s\n",
 557                                 pci_name(pcidev));
 558         }
 559
 560         nesdev->csr_start = pci_resource_start(nesdev->pcidev, BAR_0);
 561         nesdev->doorbell_region = pci_resource_start(nesdev->pcidev, BAR_1);
 562
 563         /* Init the adapter */
 564         nesdev->nesadapter = nes_init_adapter(nesdev, hw_rev);
 565         if (!nesdev->nesadapter) {
 566                 printk(KERN_ERR PFX "Unable to initialize adapter.\n");
 567                 ret = -ENOMEM;
 568                 goto bail5;
 569         }
 570         nesdev->nesadapter->et_rx_coalesce_usecs_irq = interrupt_mod_interval;
 571         nesdev->nesadapter->wqm_quanta = wqm_quanta;
 572
 573         /* nesdev->base_doorbell_index =
 574                         nesdev->nesadapter->pd_config_base[PCI_FUNC(nesdev->pcidev->devfn)]; */
 575         nesdev->base_doorbell_index = 1;
 576         nesdev->doorbell_start = nesdev->nesadapter->doorbell_start;
 577         if (nesdev->nesadapter->phy_type[0] == NES_PHY_TYPE_PUMA_1G) {
 578                 switch (PCI_FUNC(nesdev->pcidev->devfn) %
 579                         nesdev->nesadapter->port_count) {
 580                 case 1:
 581                         nesdev->mac_index = 2;
 582                         break;
 583                 case 2:
 584                         nesdev->mac_index = 1;
 585                         break;
 586                 case 3:
 587                         nesdev->mac_index = 3;
 588                         break;
 589                 case 0:
 590                 default:
 591                         nesdev->mac_index = 0;
 592                 }
 593         } else {
 594                 nesdev->mac_index = PCI_FUNC(nesdev->pcidev->devfn) %
 595                                                 nesdev->nesadapter->port_count;
 596         }
 597
 598         if ((limit_maxrdreqsz ||
 599              ((nesdev->nesadapter->phy_type[0] == NES_PHY_TYPE_GLADIUS) &&
 600               (hw_rev == NE020_REV1))) &&
 601             (pcie_get_readrq(pcidev) > 256)) {
 602                 if (pcie_set_readrq(pcidev, 256))
 603                         printk(KERN_ERR PFX "Unable to set max read request"
 604                                 " to 256 bytes\n");
 605                 else
 606                         nes_debug(NES_DBG_INIT, "Max read request size set"
 607                                 " to 256 bytes\n");
 608         }
 609
 610         tasklet_init(&nesdev->dpc_tasklet, nes_dpc, (unsigned long)nesdev);
 611
 612         /* bring up the Control QP */
 613         if (nes_init_cqp(nesdev)) {
 614                 ret = -ENODEV;
 615                 goto bail6;
 616         }
 617
 618         /* Arm the CCQ */
 619         nes_write32(nesdev->regs+NES_CQE_ALLOC, NES_CQE_ALLOC_NOTIFY_NEXT |
 620                         PCI_FUNC(nesdev->pcidev->devfn));
 621         nes_read32(nesdev->regs+NES_CQE_ALLOC);
 622
 623         /* Enable the interrupts */
 624         nesdev->int_req = (0x101 << PCI_FUNC(nesdev->pcidev->devfn)) |
 625                         (1 << (PCI_FUNC(nesdev->pcidev->devfn)+16));
 626         if (PCI_FUNC(nesdev->pcidev->devfn) < 4) {
 627                 nesdev->int_req |= (1 << (PCI_FUNC(nesdev->mac_index)+24));
 628         }
 629
 630         /* TODO: This really should be the first driver to load, not function 0 */
 631         if (PCI_FUNC(nesdev->pcidev->devfn) == 0) {
 632                 /* pick up PCI and critical errors if the first driver to load */
 633                 nesdev->intf_int_req = NES_INTF_INT_PCIERR | NES_INTF_INT_CRITERR;
 634                 nesdev->int_req |= NES_INT_INTF;
 635         } else {
 636                 nesdev->intf_int_req = 0;
 637         }
 638         nesdev->intf_int_req |= (1 << (PCI_FUNC(nesdev->pcidev->devfn)+16));
 639         nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS0, 0);
 640         nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS1, 0);
 641         nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS2, 0x00001265);
 642         nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS4, 0x18021804);
 643
 644         nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS3, 0x17801790);
 645
 646         /* deal with both periodic and one_shot */
 647         nesdev->timer_int_req = 0x101 << PCI_FUNC(nesdev->pcidev->devfn);
 648         nesdev->nesadapter->timer_int_req |= nesdev->timer_int_req;
 649         nes_debug(NES_DBG_INIT, "setting int_req for function %u, nesdev = 0x%04X, adapter = 0x%04X\n",
 650                         PCI_FUNC(nesdev->pcidev->devfn),
 651                         nesdev->timer_int_req, nesdev->nesadapter->timer_int_req);
 652
 653         nes_write32(nesdev->regs+NES_INTF_INT_MASK, ~(nesdev->intf_int_req));
 654
 655         list_add_tail(&nesdev->list, &nes_dev_list);
 656
 657         /* Request an interrupt line for the driver */
 658         ret = request_irq(pcidev->irq, nes_interrupt, IRQF_SHARED, DRV_NAME, nesdev);
 659         if (ret) {
 660                 printk(KERN_ERR PFX "%s: requested IRQ %u is busy\n",
 661                                 pci_name(pcidev), pcidev->irq);
 662                 goto bail65;
 663         }
 664
 665         nes_write32(nesdev->regs+NES_INT_MASK, ~nesdev->int_req);
 666
 667         if (nes_notifiers_registered == 0) {
 668                 register_inetaddr_notifier(&nes_inetaddr_notifier);
 669                 register_netevent_notifier(&nes_net_notifier);
 670         }
 671         nes_notifiers_registered++;
 672
 673         INIT_DELAYED_WORK(&nesdev->work, nes_recheck_link_status);
 674
 675         /* Initialize network devices */
 676         netdev = nes_netdev_init(nesdev, mmio_regs);
 677         if (netdev == NULL) {
 678                 ret = -ENOMEM;
 679                 goto bail7;
 680         }
 681
 682         /* Register network device */
 683         ret = register_netdev(netdev);
 684         if (ret) {
 685                 printk(KERN_ERR PFX "Unable to register netdev, ret = %d\n", ret);
 686                 nes_netdev_destroy(netdev);
 687                 goto bail7;
 688         }
 689
 690         nes_print_macaddr(netdev);
 691
 692         nesdev->netdev_count++;
 693         nesdev->nesadapter->netdev_count++;
 694
 695         printk(KERN_INFO PFX "%s: NetEffect RNIC driver successfully loaded.\n",
 696                         pci_name(pcidev));
 697         return 0;
 698
 699         bail7:
 700         printk(KERN_ERR PFX "bail7\n");
 701         while (nesdev->netdev_count > 0) {
 702                 nesdev->netdev_count--;
 703                 nesdev->nesadapter->netdev_count--;
 704
 705                 unregister_netdev(nesdev->netdev[nesdev->netdev_count]);
 706                 nes_netdev_destroy(nesdev->netdev[nesdev->netdev_count]);
 707         }
 708
 709         nes_debug(NES_DBG_INIT, "netdev_count=%d, nesadapter->netdev_count=%d\n",
 710                         nesdev->netdev_count, nesdev->nesadapter->netdev_count);
 711
 712         nes_notifiers_registered--;
 713         if (nes_notifiers_registered == 0) {
 714                 unregister_netevent_notifier(&nes_net_notifier);
 715                 unregister_inetaddr_notifier(&nes_inetaddr_notifier);
 716         }
 717
 718         list_del(&nesdev->list);
 719         nes_destroy_cqp(nesdev);
 720
 721         bail65:
 722         printk(KERN_ERR PFX "bail65\n");
 723         free_irq(pcidev->irq, nesdev);
 724         if (nesdev->msi_enabled) {
 725                 pci_disable_msi(pcidev);
 726         }
 727         bail6:
 728         printk(KERN_ERR PFX "bail6\n");
 729         tasklet_kill(&nesdev->dpc_tasklet);
 730         /* Deallocate the Adapter Structure */
 731         nes_destroy_adapter(nesdev->nesadapter);
 732
 733         bail5:
 734         printk(KERN_ERR PFX "bail5\n");
 735         iounmap(nesdev->regs);
 736
 737         bail3:
 738         printk(KERN_ERR PFX "bail3\n");
 739         kfree(nesdev);
 740
 741         bail2:
 742         pci_release_regions(pcidev);
 743
 744         bail1:
 745         pci_disable_device(pcidev);
 746
 747         bail0:
 748         return ret;
 749 }
 750
 751
 752 /**
 753  * nes_remove - unload from kernel
 754  */
 755 static void nes_remove(struct pci_dev *pcidev)
 756 {
 757         struct nes_device *nesdev = pci_get_drvdata(pcidev);
 758         struct net_device *netdev;
 759         int netdev_index = 0;
 760         unsigned long flags;
 761
 762         if (nesdev->netdev_count) {
 763                 netdev = nesdev->netdev[netdev_index];
 764                 if (netdev) {
 765                         netif_stop_queue(netdev);
 766                         unregister_netdev(netdev);
 767                         nes_netdev_destroy(netdev);
 768
 769                         nesdev->netdev[netdev_index] = NULL;
 770                         nesdev->netdev_count--;
 771                         nesdev->nesadapter->netdev_count--;
 772                 }
 773         }
 774
 775         nes_notifiers_registered--;
 776         if (nes_notifiers_registered == 0) {
 777                 unregister_netevent_notifier(&nes_net_notifier);
 778                 unregister_inetaddr_notifier(&nes_inetaddr_notifier);
 779         }
 780
 781         list_del(&nesdev->list);
 782         nes_destroy_cqp(nesdev);
 783
 784         free_irq(pcidev->irq, nesdev);
 785         tasklet_kill(&nesdev->dpc_tasklet);
 786
 787         spin_lock_irqsave(&nesdev->nesadapter->phy_lock, flags);
 788         if (nesdev->link_recheck) {
 789                 spin_unlock_irqrestore(&nesdev->nesadapter->phy_lock, flags);
 790                 cancel_delayed_work_sync(&nesdev->work);
 791         } else {
 792                 spin_unlock_irqrestore(&nesdev->nesadapter->phy_lock, flags);
 793         }
 794
 795         /* Deallocate the Adapter Structure */
 796         nes_destroy_adapter(nesdev->nesadapter);
 797
 798         if (nesdev->msi_enabled) {
 799                 pci_disable_msi(pcidev);
 800         }
 801
 802         iounmap(nesdev->regs);
 803         kfree(nesdev);
 804
 805         /* nes_debug(NES_DBG_SHUTDOWN, "calling pci_release_regions.\n"); */
 806         pci_release_regions(pcidev);
 807         pci_disable_device(pcidev);
 808         pci_set_drvdata(pcidev, NULL);
 809 }
 810
 811
 812 static ssize_t adapter_show(struct device_driver *ddp, char *buf)
 813 {
 814         unsigned int  devfn = 0xffffffff;
 815         unsigned char bus_number = 0xff;
 816         unsigned int  i = 0;
 817         struct nes_device *nesdev;
 818
 819         list_for_each_entry(nesdev, &nes_dev_list, list) {
 820                 if (i == ee_flsh_adapter) {
 821                         devfn = nesdev->pcidev->devfn;
 822                         bus_number = nesdev->pcidev->bus->number;
 823                         break;
 824                 }
 825                 i++;
 826         }
 827
 828         return snprintf(buf, PAGE_SIZE, "%x:%x\n", bus_number, devfn);
 829 }
 830
 831 static ssize_t adapter_store(struct device_driver *ddp,
 832         const char *buf, size_t count)
 833 {
 834         char *p = (char *)buf;
 835
 836         ee_flsh_adapter = simple_strtoul(p, &p, 10);
 837         return strnlen(buf, count);
 838 }
 839
 840 static ssize_t eeprom_cmd_show(struct device_driver *ddp, char *buf)
 841 {
 842         u32 eeprom_cmd = 0xdead;
 843         u32 i = 0;
 844         struct nes_device *nesdev;
 845
 846         list_for_each_entry(nesdev, &nes_dev_list, list) {
 847                 if (i == ee_flsh_adapter) {
 848                         eeprom_cmd = nes_read32(nesdev->regs + NES_EEPROM_COMMAND);
 849                         break;
 850                 }
 851                 i++;
 852         }
 853         return snprintf(buf, PAGE_SIZE, "0x%x\n", eeprom_cmd);
 854 }
 855
 856 static ssize_t eeprom_cmd_store(struct device_driver *ddp,
 857         const char *buf, size_t count)
 858 {
 859         char *p = (char *)buf;
 860         u32 val;
 861         u32 i = 0;
 862         struct nes_device *nesdev;
 863
 864         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
 865                 val = simple_strtoul(p, &p, 16);
 866                 list_for_each_entry(nesdev, &nes_dev_list, list) {
 867                         if (i == ee_flsh_adapter) {
 868                                 nes_write32(nesdev->regs + NES_EEPROM_COMMAND, val);
 869                                 break;
 870                         }
 871                         i++;
 872                 }
 873         }
 874         return strnlen(buf, count);
 875 }
 876
 877 static ssize_t eeprom_data_show(struct device_driver *ddp, char *buf)
 878 {
 879         u32 eeprom_data = 0xdead;
 880         u32 i = 0;
 881         struct nes_device *nesdev;
 882
 883         list_for_each_entry(nesdev, &nes_dev_list, list) {
 884                 if (i == ee_flsh_adapter) {
 885                         eeprom_data = nes_read32(nesdev->regs + NES_EEPROM_DATA);
 886                         break;
 887                 }
 888                 i++;
 889         }
 890
 891         return  snprintf(buf, PAGE_SIZE, "0x%x\n", eeprom_data);
 892 }
 893
 894 static ssize_t eeprom_data_store(struct device_driver *ddp,
 895         const char *buf, size_t count)
 896 {
 897         char *p = (char *)buf;
 898         u32 val;
 899         u32 i = 0;
 900         struct nes_device *nesdev;
 901
 902         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
 903                 val = simple_strtoul(p, &p, 16);
 904                 list_for_each_entry(nesdev, &nes_dev_list, list) {
 905                         if (i == ee_flsh_adapter) {
 906                                 nes_write32(nesdev->regs + NES_EEPROM_DATA, val);
 907                                 break;
 908                         }
 909                         i++;
 910                 }
 911         }
 912         return strnlen(buf, count);
 913 }
 914
 915 static ssize_t flash_cmd_show(struct device_driver *ddp, char *buf)
 916 {
 917         u32 flash_cmd = 0xdead;
 918         u32 i = 0;
 919         struct nes_device *nesdev;
 920
 921         list_for_each_entry(nesdev, &nes_dev_list, list) {
 922                 if (i == ee_flsh_adapter) {
 923                         flash_cmd = nes_read32(nesdev->regs + NES_FLASH_COMMAND);
 924                         break;
 925                 }
 926                 i++;
 927         }
 928
 929         return  snprintf(buf, PAGE_SIZE, "0x%x\n", flash_cmd);
 930 }
 931
 932 static ssize_t flash_cmd_store(struct device_driver *ddp,
 933         const char *buf, size_t count)
 934 {
 935         char *p = (char *)buf;
 936         u32 val;
 937         u32 i = 0;
 938         struct nes_device *nesdev;
 939
 940         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
 941                 val = simple_strtoul(p, &p, 16);
 942                 list_for_each_entry(nesdev, &nes_dev_list, list) {
 943                         if (i == ee_flsh_adapter) {
 944                                 nes_write32(nesdev->regs + NES_FLASH_COMMAND, val);
 945                                 break;
 946                         }
 947                         i++;
 948                 }
 949         }
 950         return strnlen(buf, count);
 951 }
 952
 953 static ssize_t flash_data_show(struct device_driver *ddp, char *buf)
 954 {
 955         u32 flash_data = 0xdead;
 956         u32 i = 0;
 957         struct nes_device *nesdev;
 958
 959         list_for_each_entry(nesdev, &nes_dev_list, list) {
 960                 if (i == ee_flsh_adapter) {
 961                         flash_data = nes_read32(nesdev->regs + NES_FLASH_DATA);
 962                         break;
 963                 }
 964                 i++;
 965         }
 966
 967         return  snprintf(buf, PAGE_SIZE, "0x%x\n", flash_data);
 968 }
 969
 970 static ssize_t flash_data_store(struct device_driver *ddp,
 971         const char *buf, size_t count)
 972 {
 973         char *p = (char *)buf;
 974         u32 val;
 975         u32 i = 0;
 976         struct nes_device *nesdev;
 977
 978         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
 979                 val = simple_strtoul(p, &p, 16);
 980                 list_for_each_entry(nesdev, &nes_dev_list, list) {
 981                         if (i == ee_flsh_adapter) {
 982                                 nes_write32(nesdev->regs + NES_FLASH_DATA, val);
 983                                 break;
 984                         }
 985                         i++;
 986                 }
 987         }
 988         return strnlen(buf, count);
 989 }
 990
 991 static ssize_t nonidx_addr_show(struct device_driver *ddp, char *buf)
 992 {
 993         return  snprintf(buf, PAGE_SIZE, "0x%x\n", sysfs_nonidx_addr);
 994 }
 995
 996 static ssize_t nonidx_addr_store(struct device_driver *ddp,
 997         const char *buf, size_t count)
 998 {
 999         char *p = (char *)buf;
1000
1001         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X')
1002                 sysfs_nonidx_addr = simple_strtoul(p, &p, 16);
1003
1004         return strnlen(buf, count);
1005 }
1006
1007 static ssize_t nonidx_data_show(struct device_driver *ddp, char *buf)
1008 {
1009         u32 nonidx_data = 0xdead;
1010         u32 i = 0;
1011         struct nes_device *nesdev;
1012
1013         list_for_each_entry(nesdev, &nes_dev_list, list) {
1014                 if (i == ee_flsh_adapter) {
1015                         nonidx_data = nes_read32(nesdev->regs + sysfs_nonidx_addr);
1016                         break;
1017                 }
1018                 i++;
1019         }
1020
1021         return  snprintf(buf, PAGE_SIZE, "0x%x\n", nonidx_data);
1022 }
1023
1024 static ssize_t nonidx_data_store(struct device_driver *ddp,
1025         const char *buf, size_t count)
1026 {
1027         char *p = (char *)buf;
1028         u32 val;
1029         u32 i = 0;
1030         struct nes_device *nesdev;
1031
1032         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
1033                 val = simple_strtoul(p, &p, 16);
1034                 list_for_each_entry(nesdev, &nes_dev_list, list) {
1035                         if (i == ee_flsh_adapter) {
1036                                 nes_write32(nesdev->regs + sysfs_nonidx_addr, val);
1037                                 break;
1038                         }
1039                         i++;
1040                 }
1041         }
1042         return strnlen(buf, count);
1043 }
1044
1045 static ssize_t idx_addr_show(struct device_driver *ddp, char *buf)
1046 {
1047         return  snprintf(buf, PAGE_SIZE, "0x%x\n", sysfs_idx_addr);
1048 }
1049
1050 static ssize_t idx_addr_store(struct device_driver *ddp,
1051         const char *buf, size_t count)
1052 {
1053         char *p = (char *)buf;
1054
1055         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X')
1056                 sysfs_idx_addr = simple_strtoul(p, &p, 16);
1057
1058         return strnlen(buf, count);
1059 }
1060
1061 static ssize_t idx_data_show(struct device_driver *ddp, char *buf)
1062 {
1063         u32 idx_data = 0xdead;
1064         u32 i = 0;
1065         struct nes_device *nesdev;
1066
1067         list_for_each_entry(nesdev, &nes_dev_list, list) {
1068                 if (i == ee_flsh_adapter) {
1069                         idx_data = nes_read_indexed(nesdev, sysfs_idx_addr);
1070                         break;
1071                 }
1072                 i++;
1073         }
1074
1075         return  snprintf(buf, PAGE_SIZE, "0x%x\n", idx_data);
1076 }
1077
1078 static ssize_t idx_data_store(struct device_driver *ddp,
1079         const char *buf, size_t count)
1080 {
1081         char *p = (char *)buf;
1082         u32 val;
1083         u32 i = 0;
1084         struct nes_device *nesdev;
1085
1086         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
1087                 val = simple_strtoul(p, &p, 16);
1088                 list_for_each_entry(nesdev, &nes_dev_list, list) {
1089                         if (i == ee_flsh_adapter) {
1090                                 nes_write_indexed(nesdev, sysfs_idx_addr, val);
1091                                 break;
1092                         }
1093                         i++;
1094                 }
1095         }
1096         return strnlen(buf, count);
1097 }
1098
1099 static ssize_t wqm_quanta_show(struct device_driver *ddp, char *buf)
1100 {
1101         u32 wqm_quanta_value = 0xdead;
1102         u32 i = 0;
1103         struct nes_device *nesdev;
1104
1105         list_for_each_entry(nesdev, &nes_dev_list, list) {
1106                 if (i == ee_flsh_adapter) {
1107                         wqm_quanta_value = nesdev->nesadapter->wqm_quanta;
1108                         break;
1109                 }
1110                 i++;
1111         }
1112
1113         return  snprintf(buf, PAGE_SIZE, "0x%X\n", wqm_quanta_value);
1114 }
1115
1116 static ssize_t wqm_quanta_store(struct device_driver *ddp, const char *buf,
1117                                 size_t count)
1118 {
1119         unsigned long wqm_quanta_value;
1120         u32 wqm_config1;
1121         u32 i = 0;
1122         struct nes_device *nesdev;
1123
1124         if (kstrtoul(buf, 0, &wqm_quanta_value) < 0)
1125                 return -EINVAL;
1126
1127         list_for_each_entry(nesdev, &nes_dev_list, list) {
1128                 if (i == ee_flsh_adapter) {
1129                         nesdev->nesadapter->wqm_quanta = wqm_quanta_value;
1130                         wqm_config1 = nes_read_indexed(nesdev,
1131                                                 NES_IDX_WQM_CONFIG1);
1132                         nes_write_indexed(nesdev, NES_IDX_WQM_CONFIG1,
1133                                         ((wqm_quanta_value << 1) |
1134                                         (wqm_config1 & 0x00000001)));
1135                         break;
1136                 }
1137                 i++;
1138         }
1139         return strnlen(buf, count);
1140 }
1141
1142 static DRIVER_ATTR_RW(adapter);
1143 static DRIVER_ATTR_RW(eeprom_cmd);
1144 static DRIVER_ATTR_RW(eeprom_data);
1145 static DRIVER_ATTR_RW(flash_cmd);
1146 static DRIVER_ATTR_RW(flash_data);
1147 static DRIVER_ATTR_RW(nonidx_addr);
1148 static DRIVER_ATTR_RW(nonidx_data);
1149 static DRIVER_ATTR_RW(idx_addr);
1150 static DRIVER_ATTR_RW(idx_data);
1151 static DRIVER_ATTR_RW(wqm_quanta);
1152
1153 static struct attribute *nes_attrs[] = {
1154         &driver_attr_adapter.attr,
1155         &driver_attr_eeprom_cmd.attr,
1156         &driver_attr_eeprom_data.attr,
1157         &driver_attr_flash_cmd.attr,
1158         &driver_attr_flash_data.attr,
1159         &driver_attr_nonidx_addr.attr,
1160         &driver_attr_nonidx_data.attr,
1161         &driver_attr_idx_addr.attr,
1162         &driver_attr_idx_data.attr,
1163         &driver_attr_wqm_quanta.attr,
1164         NULL,
1165 };
1166 ATTRIBUTE_GROUPS(nes);
1167
1168 static struct pci_driver nes_pci_driver = {
1169         .name = DRV_NAME,
1170         .id_table = nes_pci_table,
1171         .probe = nes_probe,
1172         .remove = nes_remove,
1173         .groups = nes_groups,
1174 };
1175
1176
1177 /**
1178  * nes_init_module - module initialization entry point
1179  */
1180 static int __init nes_init_module(void)
1181 {
1182         int retval;
1183
1184         retval = nes_cm_start();
1185         if (retval) {
1186                 printk(KERN_ERR PFX "Unable to start NetEffect iWARP CM.\n");
1187                 return retval;
1188         }
1189         return pci_register_driver(&nes_pci_driver);
1190 }
1191
1192
1193 /**
1194  * nes_exit_module - module unload entry point
1195  */
1196 static void __exit nes_exit_module(void)
1197 {
1198         nes_cm_stop();
1199
1200         pci_unregister_driver(&nes_pci_driver);
1201 }
1202
1203
1204 module_init(nes_init_module);
1205 module_exit(nes_exit_module);