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