drivers/infiniband/hw/nes/nes.c

   1 /*
   2  * Copyright (c) 2006 - 2009 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 <asm/io.h>
  48 #include <asm/irq.h>
  49 #include <asm/byteorder.h>
  50 #include <rdma/ib_smi.h>
  51 #include <rdma/ib_verbs.h>
  52 #include <rdma/ib_pack.h>
  53 #include <rdma/iw_cm.h>
  54
  55 #include "nes.h"
  56
  57 #include <net/netevent.h>
  58 #include <net/neighbour.h>
  59 #include <linux/route.h>
  60 #include <net/ip_fib.h>
  61
  62 MODULE_AUTHOR("NetEffect");
  63 MODULE_DESCRIPTION("NetEffect RNIC Low-level iWARP Driver");
  64 MODULE_LICENSE("Dual BSD/GPL");
  65 MODULE_VERSION(DRV_VERSION);
  66
  67 int max_mtu = 9000;
  68 int interrupt_mod_interval = 0;
  69
  70
  71 /* Interoperability */
  72 int mpa_version = 1;
  73 module_param(mpa_version, int, 0644);
  74 MODULE_PARM_DESC(mpa_version, "MPA version to be used int MPA Req/Resp (0 or 1)");
  75
  76 /* Interoperability */
  77 int disable_mpa_crc = 0;
  78 module_param(disable_mpa_crc, int, 0644);
  79 MODULE_PARM_DESC(disable_mpa_crc, "Disable checking of MPA CRC");
  80
  81 unsigned int send_first = 0;
  82 module_param(send_first, int, 0644);
  83 MODULE_PARM_DESC(send_first, "Send RDMA Message First on Active Connection");
  84
  85
  86 unsigned int nes_drv_opt = 0;
  87 module_param(nes_drv_opt, int, 0644);
  88 MODULE_PARM_DESC(nes_drv_opt, "Driver option parameters");
  89
  90 unsigned int nes_debug_level = 0;
  91 module_param_named(debug_level, nes_debug_level, uint, 0644);
  92 MODULE_PARM_DESC(debug_level, "Enable debug output level");
  93
  94 unsigned int wqm_quanta = 0x10000;
  95 module_param(wqm_quanta, int, 0644);
  96 MODULE_PARM_DESC(wqm_quanta, "WQM quanta");
  97
  98 static unsigned int limit_maxrdreqsz;
  99 module_param(limit_maxrdreqsz, bool, 0644);
 100 MODULE_PARM_DESC(limit_maxrdreqsz, "Limit max read request size to 256 Bytes");
 101
 102 LIST_HEAD(nes_adapter_list);
 103 static LIST_HEAD(nes_dev_list);
 104
 105 atomic_t qps_destroyed;
 106
 107 static unsigned int ee_flsh_adapter;
 108 static unsigned int sysfs_nonidx_addr;
 109 static unsigned int sysfs_idx_addr;
 110
 111 static struct pci_device_id nes_pci_table[] = {
 112         {PCI_VENDOR_ID_NETEFFECT, PCI_DEVICE_ID_NETEFFECT_NE020, PCI_ANY_ID, PCI_ANY_ID},
 113         {PCI_VENDOR_ID_NETEFFECT, PCI_DEVICE_ID_NETEFFECT_NE020_KR, PCI_ANY_ID, PCI_ANY_ID},
 114         {0}
 115 };
 116
 117 MODULE_DEVICE_TABLE(pci, nes_pci_table);
 118
 119 static int nes_inetaddr_event(struct notifier_block *, unsigned long, void *);
 120 static int nes_net_event(struct notifier_block *, unsigned long, void *);
 121 static int nes_notifiers_registered;
 122
 123
 124 static struct notifier_block nes_inetaddr_notifier = {
 125         .notifier_call = nes_inetaddr_event
 126 };
 127
 128 static struct notifier_block nes_net_notifier = {
 129         .notifier_call = nes_net_event
 130 };
 131
 132
 133
 134
 135 /**
 136  * nes_inetaddr_event
 137  */
 138 static int nes_inetaddr_event(struct notifier_block *notifier,
 139                 unsigned long event, void *ptr)
 140 {
 141         struct in_ifaddr *ifa = ptr;
 142         struct net_device *event_netdev = ifa->ifa_dev->dev;
 143         struct nes_device *nesdev;
 144         struct net_device *netdev;
 145         struct nes_vnic *nesvnic;
 146
 147         nes_debug(NES_DBG_NETDEV, "nes_inetaddr_event: ip address %pI4, netmask %pI4.\n",
 148                   &ifa->ifa_address, &ifa->ifa_mask);
 149         list_for_each_entry(nesdev, &nes_dev_list, list) {
 150                 nes_debug(NES_DBG_NETDEV, "Nesdev list entry = 0x%p. (%s)\n",
 151                                 nesdev, nesdev->netdev[0]->name);
 152                 netdev = nesdev->netdev[0];
 153                 nesvnic = netdev_priv(netdev);
 154                 if (netdev == event_netdev) {
 155                         if (nesvnic->rdma_enabled == 0) {
 156                                 nes_debug(NES_DBG_NETDEV, "Returning without processing event for %s since"
 157                                                 " RDMA is not enabled.\n",
 158                                                 netdev->name);
 159                                 return NOTIFY_OK;
 160                         }
 161                         /* we have ifa->ifa_address/mask here if we need it */
 162                         switch (event) {
 163                                 case NETDEV_DOWN:
 164                                         nes_debug(NES_DBG_NETDEV, "event:DOWN\n");
 165                                         nes_write_indexed(nesdev,
 166                                                         NES_IDX_DST_IP_ADDR+(0x10*PCI_FUNC(nesdev->pcidev->devfn)), 0);
 167
 168                                         nes_manage_arp_cache(netdev, netdev->dev_addr,
 169                                                         ntohl(nesvnic->local_ipaddr), NES_ARP_DELETE);
 170                                         nesvnic->local_ipaddr = 0;
 171                                         return NOTIFY_OK;
 172                                         break;
 173                                 case NETDEV_UP:
 174                                         nes_debug(NES_DBG_NETDEV, "event:UP\n");
 175
 176                                         if (nesvnic->local_ipaddr != 0) {
 177                                                 nes_debug(NES_DBG_NETDEV, "Interface already has local_ipaddr\n");
 178                                                 return NOTIFY_OK;
 179                                         }
 180                                         /* Add the address to the IP table */
 181                                         nesvnic->local_ipaddr = ifa->ifa_address;
 182
 183                                         nes_write_indexed(nesdev,
 184                                                         NES_IDX_DST_IP_ADDR+(0x10*PCI_FUNC(nesdev->pcidev->devfn)),
 185                                                         ntohl(ifa->ifa_address));
 186                                         nes_manage_arp_cache(netdev, netdev->dev_addr,
 187                                                         ntohl(nesvnic->local_ipaddr), NES_ARP_ADD);
 188                                         return NOTIFY_OK;
 189                                         break;
 190                                 default:
 191                                         break;
 192                         }
 193                 }
 194         }
 195
 196         return NOTIFY_DONE;
 197 }
 198
 199
 200 /**
 201  * nes_net_event
 202  */
 203 static int nes_net_event(struct notifier_block *notifier,
 204                 unsigned long event, void *ptr)
 205 {
 206         struct neighbour *neigh = ptr;
 207         struct nes_device *nesdev;
 208         struct net_device *netdev;
 209         struct nes_vnic *nesvnic;
 210
 211         switch (event) {
 212                 case NETEVENT_NEIGH_UPDATE:
 213                         list_for_each_entry(nesdev, &nes_dev_list, list) {
 214                                 /* nes_debug(NES_DBG_NETDEV, "Nesdev list entry = 0x%p.\n", nesdev); */
 215                                 netdev = nesdev->netdev[0];
 216                                 nesvnic = netdev_priv(netdev);
 217                                 if (netdev == neigh->dev) {
 218                                         if (nesvnic->rdma_enabled == 0) {
 219                                                 nes_debug(NES_DBG_NETDEV, "Skipping device %s since no RDMA\n",
 220                                                                 netdev->name);
 221                                         } else {
 222                                                 if (neigh->nud_state & NUD_VALID) {
 223                                                         nes_manage_arp_cache(neigh->dev, neigh->ha,
 224                                                                         ntohl(*(__be32 *)neigh->primary_key), NES_ARP_ADD);
 225                                                 } else {
 226                                                         nes_manage_arp_cache(neigh->dev, neigh->ha,
 227                                                                         ntohl(*(__be32 *)neigh->primary_key), NES_ARP_DELETE);
 228                                                 }
 229                                         }
 230                                         return NOTIFY_OK;
 231                                 }
 232                         }
 233                         break;
 234                 default:
 235                         nes_debug(NES_DBG_NETDEV, "NETEVENT_ %lu undefined\n", event);
 236                         break;
 237         }
 238
 239         return NOTIFY_DONE;
 240 }
 241
 242
 243 /**
 244  * nes_add_ref
 245  */
 246 void nes_add_ref(struct ib_qp *ibqp)
 247 {
 248         struct nes_qp *nesqp;
 249
 250         nesqp = to_nesqp(ibqp);
 251         nes_debug(NES_DBG_QP, "Bumping refcount for QP%u.  Pre-inc value = %u\n",
 252                         ibqp->qp_num, atomic_read(&nesqp->refcount));
 253         atomic_inc(&nesqp->refcount);
 254 }
 255
 256 static void nes_cqp_rem_ref_callback(struct nes_device *nesdev, struct nes_cqp_request *cqp_request)
 257 {
 258         unsigned long flags;
 259         struct nes_qp *nesqp = cqp_request->cqp_callback_pointer;
 260         struct nes_adapter *nesadapter = nesdev->nesadapter;
 261         u32 qp_id;
 262
 263         atomic_inc(&qps_destroyed);
 264
 265         /* Free the control structures */
 266
 267         qp_id = nesqp->hwqp.qp_id;
 268         if (nesqp->pbl_vbase) {
 269                 pci_free_consistent(nesdev->pcidev, nesqp->qp_mem_size,
 270                                 nesqp->hwqp.q2_vbase, nesqp->hwqp.q2_pbase);
 271                 spin_lock_irqsave(&nesadapter->pbl_lock, flags);
 272                 nesadapter->free_256pbl++;
 273                 spin_unlock_irqrestore(&nesadapter->pbl_lock, flags);
 274                 pci_free_consistent(nesdev->pcidev, 256, nesqp->pbl_vbase, nesqp->pbl_pbase);
 275                 nesqp->pbl_vbase = NULL;
 276
 277         } else {
 278                 pci_free_consistent(nesdev->pcidev, nesqp->qp_mem_size,
 279                                 nesqp->hwqp.sq_vbase, nesqp->hwqp.sq_pbase);
 280         }
 281         nes_free_resource(nesadapter, nesadapter->allocated_qps, nesqp->hwqp.qp_id);
 282
 283         nesadapter->qp_table[nesqp->hwqp.qp_id-NES_FIRST_QPN] = NULL;
 284         kfree(nesqp->allocated_buffer);
 285
 286 }
 287
 288 /**
 289  * nes_rem_ref
 290  */
 291 void nes_rem_ref(struct ib_qp *ibqp)
 292 {
 293         u64 u64temp;
 294         struct nes_qp *nesqp;
 295         struct nes_vnic *nesvnic = to_nesvnic(ibqp->device);
 296         struct nes_device *nesdev = nesvnic->nesdev;
 297         struct nes_hw_cqp_wqe *cqp_wqe;
 298         struct nes_cqp_request *cqp_request;
 299         u32 opcode;
 300
 301         nesqp = to_nesqp(ibqp);
 302
 303         if (atomic_read(&nesqp->refcount) == 0) {
 304                 printk(KERN_INFO PFX "%s: Reference count already 0 for QP%d, last aeq = 0x%04X.\n",
 305                                 __func__, ibqp->qp_num, nesqp->last_aeq);
 306                 BUG();
 307         }
 308
 309         if (atomic_dec_and_test(&nesqp->refcount)) {
 310                 /* Destroy the QP */
 311                 cqp_request = nes_get_cqp_request(nesdev);
 312                 if (cqp_request == NULL) {
 313                         nes_debug(NES_DBG_QP, "Failed to get a cqp_request.\n");
 314                         return;
 315                 }
 316                 cqp_request->waiting = 0;
 317                 cqp_request->callback = 1;
 318                 cqp_request->cqp_callback = nes_cqp_rem_ref_callback;
 319                 cqp_request->cqp_callback_pointer = nesqp;
 320                 cqp_wqe = &cqp_request->cqp_wqe;
 321
 322                 nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
 323                 opcode = NES_CQP_DESTROY_QP | NES_CQP_QP_TYPE_IWARP;
 324
 325                 if (nesqp->hte_added) {
 326                         opcode  |= NES_CQP_QP_DEL_HTE;
 327                         nesqp->hte_added = 0;
 328                 }
 329                 set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, opcode);
 330                 set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX, nesqp->hwqp.qp_id);
 331                 u64temp = (u64)nesqp->nesqp_context_pbase;
 332                 set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_QP_WQE_CONTEXT_LOW_IDX, u64temp);
 333                 nes_post_cqp_request(nesdev, cqp_request);
 334         }
 335 }
 336
 337
 338 /**
 339  * nes_get_qp
 340  */
 341 struct ib_qp *nes_get_qp(struct ib_device *device, int qpn)
 342 {
 343         struct nes_vnic *nesvnic = to_nesvnic(device);
 344         struct nes_device *nesdev = nesvnic->nesdev;
 345         struct nes_adapter *nesadapter = nesdev->nesadapter;
 346
 347         if ((qpn < NES_FIRST_QPN) || (qpn >= (NES_FIRST_QPN + nesadapter->max_qp)))
 348                 return NULL;
 349
 350         return &nesadapter->qp_table[qpn - NES_FIRST_QPN]->ibqp;
 351 }
 352
 353
 354 /**
 355  * nes_print_macaddr
 356  */
 357 static void nes_print_macaddr(struct net_device *netdev)
 358 {
 359         nes_debug(NES_DBG_INIT, "%s: %pM, IRQ %u\n",
 360                   netdev->name, netdev->dev_addr, netdev->irq);
 361 }
 362
 363 /**
 364  * nes_interrupt - handle interrupts
 365  */
 366 static irqreturn_t nes_interrupt(int irq, void *dev_id)
 367 {
 368         struct nes_device *nesdev = (struct nes_device *)dev_id;
 369         int handled = 0;
 370         u32 int_mask;
 371         u32 int_req;
 372         u32 int_stat;
 373         u32 intf_int_stat;
 374         u32 timer_stat;
 375
 376         if (nesdev->msi_enabled) {
 377                 /* No need to read the interrupt pending register if msi is enabled */
 378                 handled = 1;
 379         } else {
 380                 if (unlikely(nesdev->nesadapter->hw_rev == NE020_REV)) {
 381                         /* Master interrupt enable provides synchronization for kicking off bottom half
 382                           when interrupt sharing is going on */
 383                         int_mask = nes_read32(nesdev->regs + NES_INT_MASK);
 384                         if (int_mask & 0x80000000) {
 385                                 /* Check interrupt status to see if this might be ours */
 386                                 int_stat = nes_read32(nesdev->regs + NES_INT_STAT);
 387                                 int_req = nesdev->int_req;
 388                                 if (int_stat&int_req) {
 389                                         /* if interesting CEQ or AEQ is pending, claim the interrupt */
 390                                         if ((int_stat&int_req) & (~(NES_INT_TIMER|NES_INT_INTF))) {
 391                                                 handled = 1;
 392                                         } else {
 393                                                 if (((int_stat & int_req) & NES_INT_TIMER) == NES_INT_TIMER) {
 394                                                         /* Timer might be running but might be for another function */
 395                                                         timer_stat = nes_read32(nesdev->regs + NES_TIMER_STAT);
 396                                                         if ((timer_stat & nesdev->timer_int_req) != 0) {
 397                                                                 handled = 1;
 398                                                         }
 399                                                 }
 400                                                 if ((((int_stat & int_req) & NES_INT_INTF) == NES_INT_INTF) &&
 401                                                                 (handled == 0)) {
 402                                                         intf_int_stat = nes_read32(nesdev->regs+NES_INTF_INT_STAT);
 403                                                         if ((intf_int_stat & nesdev->intf_int_req) != 0) {
 404                                                                 handled = 1;
 405                                                         }
 406                                                 }
 407                                         }
 408                                         if (handled) {
 409                                                 nes_write32(nesdev->regs+NES_INT_MASK, int_mask & (~0x80000000));
 410                                                 int_mask = nes_read32(nesdev->regs+NES_INT_MASK);
 411                                                 /* Save off the status to save an additional read */
 412                                                 nesdev->int_stat = int_stat;
 413                                                 nesdev->napi_isr_ran = 1;
 414                                         }
 415                                 }
 416                         }
 417                 } else {
 418                         handled = nes_read32(nesdev->regs+NES_INT_PENDING);
 419                 }
 420         }
 421
 422         if (handled) {
 423
 424                 if (nes_napi_isr(nesdev) == 0) {
 425                         tasklet_schedule(&nesdev->dpc_tasklet);
 426
 427                 }
 428                 return IRQ_HANDLED;
 429         } else {
 430                 return IRQ_NONE;
 431         }
 432 }
 433
 434
 435 /**
 436  * nes_probe - Device initialization
 437  */
 438 static int __devinit nes_probe(struct pci_dev *pcidev, const struct pci_device_id *ent)
 439 {
 440         struct net_device *netdev = NULL;
 441         struct nes_device *nesdev = NULL;
 442         int ret = 0;
 443         struct nes_vnic *nesvnic = NULL;
 444         void __iomem *mmio_regs = NULL;
 445         u8 hw_rev;
 446
 447         assert(pcidev != NULL);
 448         assert(ent != NULL);
 449
 450         printk(KERN_INFO PFX "NetEffect RNIC driver v%s loading. (%s)\n",
 451                         DRV_VERSION, pci_name(pcidev));
 452
 453         ret = pci_enable_device(pcidev);
 454         if (ret) {
 455                 printk(KERN_ERR PFX "Unable to enable PCI device. (%s)\n", pci_name(pcidev));
 456                 goto bail0;
 457         }
 458
 459         nes_debug(NES_DBG_INIT, "BAR0 (@0x%08lX) size = 0x%lX bytes\n",
 460                         (long unsigned int)pci_resource_start(pcidev, BAR_0),
 461                         (long unsigned int)pci_resource_len(pcidev, BAR_0));
 462         nes_debug(NES_DBG_INIT, "BAR1 (@0x%08lX) size = 0x%lX bytes\n",
 463                         (long unsigned int)pci_resource_start(pcidev, BAR_1),
 464                         (long unsigned int)pci_resource_len(pcidev, BAR_1));
 465
 466         /* Make sure PCI base addr are MMIO */
 467         if (!(pci_resource_flags(pcidev, BAR_0) & IORESOURCE_MEM) ||
 468                         !(pci_resource_flags(pcidev, BAR_1) & IORESOURCE_MEM)) {
 469                 printk(KERN_ERR PFX "PCI regions not an MMIO resource\n");
 470                 ret = -ENODEV;
 471                 goto bail1;
 472         }
 473
 474         /* Reserve PCI I/O and memory resources */
 475         ret = pci_request_regions(pcidev, DRV_NAME);
 476         if (ret) {
 477                 printk(KERN_ERR PFX "Unable to request regions. (%s)\n", pci_name(pcidev));
 478                 goto bail1;
 479         }
 480
 481         if ((sizeof(dma_addr_t) > 4)) {
 482                 ret = pci_set_dma_mask(pcidev, DMA_BIT_MASK(64));
 483                 if (ret < 0) {
 484                         printk(KERN_ERR PFX "64b DMA mask configuration failed\n");
 485                         goto bail2;
 486                 }
 487                 ret = pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(64));
 488                 if (ret) {
 489                         printk(KERN_ERR PFX "64b DMA consistent mask configuration failed\n");
 490                         goto bail2;
 491                 }
 492         } else {
 493                 ret = pci_set_dma_mask(pcidev, DMA_BIT_MASK(32));
 494                 if (ret < 0) {
 495                         printk(KERN_ERR PFX "32b DMA mask configuration failed\n");
 496                         goto bail2;
 497                 }
 498                 ret = pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(32));
 499                 if (ret) {
 500                         printk(KERN_ERR PFX "32b DMA consistent mask configuration failed\n");
 501                         goto bail2;
 502                 }
 503         }
 504
 505         pci_set_master(pcidev);
 506
 507         /* Allocate hardware structure */
 508         nesdev = kzalloc(sizeof(struct nes_device), GFP_KERNEL);
 509         if (!nesdev) {
 510                 printk(KERN_ERR PFX "%s: Unable to alloc hardware struct\n", pci_name(pcidev));
 511                 ret = -ENOMEM;
 512                 goto bail2;
 513         }
 514
 515         nes_debug(NES_DBG_INIT, "Allocated nes device at %p\n", nesdev);
 516         nesdev->pcidev = pcidev;
 517         pci_set_drvdata(pcidev, nesdev);
 518
 519         pci_read_config_byte(pcidev, 0x0008, &hw_rev);
 520         nes_debug(NES_DBG_INIT, "hw_rev=%u\n", hw_rev);
 521
 522         spin_lock_init(&nesdev->indexed_regs_lock);
 523
 524         /* Remap the PCI registers in adapter BAR0 to kernel VA space */
 525         mmio_regs = ioremap_nocache(pci_resource_start(pcidev, BAR_0),
 526                                     pci_resource_len(pcidev, BAR_0));
 527         if (mmio_regs == NULL) {
 528                 printk(KERN_ERR PFX "Unable to remap BAR0\n");
 529                 ret = -EIO;
 530                 goto bail3;
 531         }
 532         nesdev->regs = mmio_regs;
 533         nesdev->index_reg = 0x50 + (PCI_FUNC(pcidev->devfn)*8) + mmio_regs;
 534
 535         /* Ensure interrupts are disabled */
 536         nes_write32(nesdev->regs+NES_INT_MASK, 0x7fffffff);
 537
 538         if (nes_drv_opt & NES_DRV_OPT_ENABLE_MSI) {
 539                 if (!pci_enable_msi(nesdev->pcidev)) {
 540                         nesdev->msi_enabled = 1;
 541                         nes_debug(NES_DBG_INIT, "MSI is enabled for device %s\n",
 542                                         pci_name(pcidev));
 543                 } else {
 544                         nes_debug(NES_DBG_INIT, "MSI is disabled by linux for device %s\n",
 545                                         pci_name(pcidev));
 546                 }
 547         } else {
 548                 nes_debug(NES_DBG_INIT, "MSI not requested due to driver options for device %s\n",
 549                                 pci_name(pcidev));
 550         }
 551
 552         nesdev->csr_start = pci_resource_start(nesdev->pcidev, BAR_0);
 553         nesdev->doorbell_region = pci_resource_start(nesdev->pcidev, BAR_1);
 554
 555         /* Init the adapter */
 556         nesdev->nesadapter = nes_init_adapter(nesdev, hw_rev);
 557         if (!nesdev->nesadapter) {
 558                 printk(KERN_ERR PFX "Unable to initialize adapter.\n");
 559                 ret = -ENOMEM;
 560                 goto bail5;
 561         }
 562         nesdev->nesadapter->et_rx_coalesce_usecs_irq = interrupt_mod_interval;
 563         nesdev->nesadapter->wqm_quanta = wqm_quanta;
 564
 565         /* nesdev->base_doorbell_index =
 566                         nesdev->nesadapter->pd_config_base[PCI_FUNC(nesdev->pcidev->devfn)]; */
 567         nesdev->base_doorbell_index = 1;
 568         nesdev->doorbell_start = nesdev->nesadapter->doorbell_start;
 569         if (nesdev->nesadapter->phy_type[0] == NES_PHY_TYPE_PUMA_1G) {
 570                 switch (PCI_FUNC(nesdev->pcidev->devfn) %
 571                         nesdev->nesadapter->port_count) {
 572                 case 1:
 573                         nesdev->mac_index = 2;
 574                         break;
 575                 case 2:
 576                         nesdev->mac_index = 1;
 577                         break;
 578                 case 3:
 579                         nesdev->mac_index = 3;
 580                         break;
 581                 case 0:
 582                 default:
 583                         nesdev->mac_index = 0;
 584                 }
 585         } else {
 586                 nesdev->mac_index = PCI_FUNC(nesdev->pcidev->devfn) %
 587                                                 nesdev->nesadapter->port_count;
 588         }
 589
 590         if ((limit_maxrdreqsz ||
 591              ((nesdev->nesadapter->phy_type[0] == NES_PHY_TYPE_GLADIUS) &&
 592               (hw_rev == NE020_REV1))) &&
 593             (pcie_get_readrq(pcidev) > 256)) {
 594                 if (pcie_set_readrq(pcidev, 256))
 595                         printk(KERN_ERR PFX "Unable to set max read request"
 596                                 " to 256 bytes\n");
 597                 else
 598                         nes_debug(NES_DBG_INIT, "Max read request size set"
 599                                 " to 256 bytes\n");
 600         }
 601
 602         tasklet_init(&nesdev->dpc_tasklet, nes_dpc, (unsigned long)nesdev);
 603
 604         /* bring up the Control QP */
 605         if (nes_init_cqp(nesdev)) {
 606                 ret = -ENODEV;
 607                 goto bail6;
 608         }
 609
 610         /* Arm the CCQ */
 611         nes_write32(nesdev->regs+NES_CQE_ALLOC, NES_CQE_ALLOC_NOTIFY_NEXT |
 612                         PCI_FUNC(nesdev->pcidev->devfn));
 613         nes_read32(nesdev->regs+NES_CQE_ALLOC);
 614
 615         /* Enable the interrupts */
 616         nesdev->int_req = (0x101 << PCI_FUNC(nesdev->pcidev->devfn)) |
 617                         (1 << (PCI_FUNC(nesdev->pcidev->devfn)+16));
 618         if (PCI_FUNC(nesdev->pcidev->devfn) < 4) {
 619                 nesdev->int_req |= (1 << (PCI_FUNC(nesdev->mac_index)+24));
 620         }
 621
 622         /* TODO: This really should be the first driver to load, not function 0 */
 623         if (PCI_FUNC(nesdev->pcidev->devfn) == 0) {
 624                 /* pick up PCI and critical errors if the first driver to load */
 625                 nesdev->intf_int_req = NES_INTF_INT_PCIERR | NES_INTF_INT_CRITERR;
 626                 nesdev->int_req |= NES_INT_INTF;
 627         } else {
 628                 nesdev->intf_int_req = 0;
 629         }
 630         nesdev->intf_int_req |= (1 << (PCI_FUNC(nesdev->pcidev->devfn)+16));
 631         nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS0, 0);
 632         nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS1, 0);
 633         nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS2, 0x00001265);
 634         nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS4, 0x18021804);
 635
 636         nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS3, 0x17801790);
 637
 638         /* deal with both periodic and one_shot */
 639         nesdev->timer_int_req = 0x101 << PCI_FUNC(nesdev->pcidev->devfn);
 640         nesdev->nesadapter->timer_int_req |= nesdev->timer_int_req;
 641         nes_debug(NES_DBG_INIT, "setting int_req for function %u, nesdev = 0x%04X, adapter = 0x%04X\n",
 642                         PCI_FUNC(nesdev->pcidev->devfn),
 643                         nesdev->timer_int_req, nesdev->nesadapter->timer_int_req);
 644
 645         nes_write32(nesdev->regs+NES_INTF_INT_MASK, ~(nesdev->intf_int_req));
 646
 647         list_add_tail(&nesdev->list, &nes_dev_list);
 648
 649         /* Request an interrupt line for the driver */
 650         ret = request_irq(pcidev->irq, nes_interrupt, IRQF_SHARED, DRV_NAME, nesdev);
 651         if (ret) {
 652                 printk(KERN_ERR PFX "%s: requested IRQ %u is busy\n",
 653                                 pci_name(pcidev), pcidev->irq);
 654                 goto bail65;
 655         }
 656
 657         nes_write32(nesdev->regs+NES_INT_MASK, ~nesdev->int_req);
 658
 659         if (nes_notifiers_registered == 0) {
 660                 register_inetaddr_notifier(&nes_inetaddr_notifier);
 661                 register_netevent_notifier(&nes_net_notifier);
 662         }
 663         nes_notifiers_registered++;
 664
 665         /* Initialize network devices */
 666                 if ((netdev = nes_netdev_init(nesdev, mmio_regs)) == NULL) {
 667                         goto bail7;
 668                 }
 669
 670                 /* Register network device */
 671                 ret = register_netdev(netdev);
 672                 if (ret) {
 673                         printk(KERN_ERR PFX "Unable to register netdev, ret = %d\n", ret);
 674                         nes_netdev_destroy(netdev);
 675                         goto bail7;
 676                 }
 677
 678                 nes_print_macaddr(netdev);
 679                 /* create a CM core for this netdev */
 680                 nesvnic = netdev_priv(netdev);
 681
 682                 nesdev->netdev_count++;
 683                 nesdev->nesadapter->netdev_count++;
 684
 685
 686         printk(KERN_ERR PFX "%s: NetEffect RNIC driver successfully loaded.\n",
 687                         pci_name(pcidev));
 688         return 0;
 689
 690         bail7:
 691         printk(KERN_ERR PFX "bail7\n");
 692         while (nesdev->netdev_count > 0) {
 693                 nesdev->netdev_count--;
 694                 nesdev->nesadapter->netdev_count--;
 695
 696                 unregister_netdev(nesdev->netdev[nesdev->netdev_count]);
 697                 nes_netdev_destroy(nesdev->netdev[nesdev->netdev_count]);
 698         }
 699
 700         nes_debug(NES_DBG_INIT, "netdev_count=%d, nesadapter->netdev_count=%d\n",
 701                         nesdev->netdev_count, nesdev->nesadapter->netdev_count);
 702
 703         nes_notifiers_registered--;
 704         if (nes_notifiers_registered == 0) {
 705                 unregister_netevent_notifier(&nes_net_notifier);
 706                 unregister_inetaddr_notifier(&nes_inetaddr_notifier);
 707         }
 708
 709         list_del(&nesdev->list);
 710         nes_destroy_cqp(nesdev);
 711
 712         bail65:
 713         printk(KERN_ERR PFX "bail65\n");
 714         free_irq(pcidev->irq, nesdev);
 715         if (nesdev->msi_enabled) {
 716                 pci_disable_msi(pcidev);
 717         }
 718         bail6:
 719         printk(KERN_ERR PFX "bail6\n");
 720         tasklet_kill(&nesdev->dpc_tasklet);
 721         /* Deallocate the Adapter Structure */
 722         nes_destroy_adapter(nesdev->nesadapter);
 723
 724         bail5:
 725         printk(KERN_ERR PFX "bail5\n");
 726         iounmap(nesdev->regs);
 727
 728         bail3:
 729         printk(KERN_ERR PFX "bail3\n");
 730         kfree(nesdev);
 731
 732         bail2:
 733         pci_release_regions(pcidev);
 734
 735         bail1:
 736         pci_disable_device(pcidev);
 737
 738         bail0:
 739         return ret;
 740 }
 741
 742
 743 /**
 744  * nes_remove - unload from kernel
 745  */
 746 static void __devexit nes_remove(struct pci_dev *pcidev)
 747 {
 748         struct nes_device *nesdev = pci_get_drvdata(pcidev);
 749         struct net_device *netdev;
 750         int netdev_index = 0;
 751
 752                 if (nesdev->netdev_count) {
 753                         netdev = nesdev->netdev[netdev_index];
 754                         if (netdev) {
 755                                 netif_stop_queue(netdev);
 756                                 unregister_netdev(netdev);
 757                                 nes_netdev_destroy(netdev);
 758
 759                                 nesdev->netdev[netdev_index] = NULL;
 760                                 nesdev->netdev_count--;
 761                                 nesdev->nesadapter->netdev_count--;
 762                         }
 763                 }
 764
 765         nes_notifiers_registered--;
 766         if (nes_notifiers_registered == 0) {
 767                 unregister_netevent_notifier(&nes_net_notifier);
 768                 unregister_inetaddr_notifier(&nes_inetaddr_notifier);
 769         }
 770
 771         list_del(&nesdev->list);
 772         nes_destroy_cqp(nesdev);
 773
 774         free_irq(pcidev->irq, nesdev);
 775         tasklet_kill(&nesdev->dpc_tasklet);
 776
 777         /* Deallocate the Adapter Structure */
 778         nes_destroy_adapter(nesdev->nesadapter);
 779
 780         if (nesdev->msi_enabled) {
 781                 pci_disable_msi(pcidev);
 782         }
 783
 784         iounmap(nesdev->regs);
 785         kfree(nesdev);
 786
 787         /* nes_debug(NES_DBG_SHUTDOWN, "calling pci_release_regions.\n"); */
 788         pci_release_regions(pcidev);
 789         pci_disable_device(pcidev);
 790         pci_set_drvdata(pcidev, NULL);
 791 }
 792
 793
 794 static struct pci_driver nes_pci_driver = {
 795         .name = DRV_NAME,
 796         .id_table = nes_pci_table,
 797         .probe = nes_probe,
 798         .remove = __devexit_p(nes_remove),
 799 };
 800
 801 static ssize_t nes_show_adapter(struct device_driver *ddp, char *buf)
 802 {
 803         unsigned int  devfn = 0xffffffff;
 804         unsigned char bus_number = 0xff;
 805         unsigned int  i = 0;
 806         struct nes_device *nesdev;
 807
 808         list_for_each_entry(nesdev, &nes_dev_list, list) {
 809                 if (i == ee_flsh_adapter) {
 810                         devfn = nesdev->pcidev->devfn;
 811                         bus_number = nesdev->pcidev->bus->number;
 812                         break;
 813                 }
 814                 i++;
 815         }
 816
 817         return snprintf(buf, PAGE_SIZE, "%x:%x\n", bus_number, devfn);
 818 }
 819
 820 static ssize_t nes_store_adapter(struct device_driver *ddp,
 821         const char *buf, size_t count)
 822 {
 823         char *p = (char *)buf;
 824
 825         ee_flsh_adapter = simple_strtoul(p, &p, 10);
 826         return strnlen(buf, count);
 827 }
 828
 829 static ssize_t nes_show_ee_cmd(struct device_driver *ddp, char *buf)
 830 {
 831         u32 eeprom_cmd = 0xdead;
 832         u32 i = 0;
 833         struct nes_device *nesdev;
 834
 835         list_for_each_entry(nesdev, &nes_dev_list, list) {
 836                 if (i == ee_flsh_adapter) {
 837                         eeprom_cmd = nes_read32(nesdev->regs + NES_EEPROM_COMMAND);
 838                         break;
 839                 }
 840                 i++;
 841         }
 842         return snprintf(buf, PAGE_SIZE, "0x%x\n", eeprom_cmd);
 843 }
 844
 845 static ssize_t nes_store_ee_cmd(struct device_driver *ddp,
 846         const char *buf, size_t count)
 847 {
 848         char *p = (char *)buf;
 849         u32 val;
 850         u32 i = 0;
 851         struct nes_device *nesdev;
 852
 853         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
 854                 val = simple_strtoul(p, &p, 16);
 855                 list_for_each_entry(nesdev, &nes_dev_list, list) {
 856                         if (i == ee_flsh_adapter) {
 857                                 nes_write32(nesdev->regs + NES_EEPROM_COMMAND, val);
 858                                 break;
 859                         }
 860                         i++;
 861                 }
 862         }
 863         return strnlen(buf, count);
 864 }
 865
 866 static ssize_t nes_show_ee_data(struct device_driver *ddp, char *buf)
 867 {
 868         u32 eeprom_data = 0xdead;
 869         u32 i = 0;
 870         struct nes_device *nesdev;
 871
 872         list_for_each_entry(nesdev, &nes_dev_list, list) {
 873                 if (i == ee_flsh_adapter) {
 874                         eeprom_data = nes_read32(nesdev->regs + NES_EEPROM_DATA);
 875                         break;
 876                 }
 877                 i++;
 878         }
 879
 880         return  snprintf(buf, PAGE_SIZE, "0x%x\n", eeprom_data);
 881 }
 882
 883 static ssize_t nes_store_ee_data(struct device_driver *ddp,
 884         const char *buf, size_t count)
 885 {
 886         char *p = (char *)buf;
 887         u32 val;
 888         u32 i = 0;
 889         struct nes_device *nesdev;
 890
 891         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
 892                 val = simple_strtoul(p, &p, 16);
 893                 list_for_each_entry(nesdev, &nes_dev_list, list) {
 894                         if (i == ee_flsh_adapter) {
 895                                 nes_write32(nesdev->regs + NES_EEPROM_DATA, val);
 896                                 break;
 897                         }
 898                         i++;
 899                 }
 900         }
 901         return strnlen(buf, count);
 902 }
 903
 904 static ssize_t nes_show_flash_cmd(struct device_driver *ddp, char *buf)
 905 {
 906         u32 flash_cmd = 0xdead;
 907         u32 i = 0;
 908         struct nes_device *nesdev;
 909
 910         list_for_each_entry(nesdev, &nes_dev_list, list) {
 911                 if (i == ee_flsh_adapter) {
 912                         flash_cmd = nes_read32(nesdev->regs + NES_FLASH_COMMAND);
 913                         break;
 914                 }
 915                 i++;
 916         }
 917
 918         return  snprintf(buf, PAGE_SIZE, "0x%x\n", flash_cmd);
 919 }
 920
 921 static ssize_t nes_store_flash_cmd(struct device_driver *ddp,
 922         const char *buf, size_t count)
 923 {
 924         char *p = (char *)buf;
 925         u32 val;
 926         u32 i = 0;
 927         struct nes_device *nesdev;
 928
 929         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
 930                 val = simple_strtoul(p, &p, 16);
 931                 list_for_each_entry(nesdev, &nes_dev_list, list) {
 932                         if (i == ee_flsh_adapter) {
 933                                 nes_write32(nesdev->regs + NES_FLASH_COMMAND, val);
 934                                 break;
 935                         }
 936                         i++;
 937                 }
 938         }
 939         return strnlen(buf, count);
 940 }
 941
 942 static ssize_t nes_show_flash_data(struct device_driver *ddp, char *buf)
 943 {
 944         u32 flash_data = 0xdead;
 945         u32 i = 0;
 946         struct nes_device *nesdev;
 947
 948         list_for_each_entry(nesdev, &nes_dev_list, list) {
 949                 if (i == ee_flsh_adapter) {
 950                         flash_data = nes_read32(nesdev->regs + NES_FLASH_DATA);
 951                         break;
 952                 }
 953                 i++;
 954         }
 955
 956         return  snprintf(buf, PAGE_SIZE, "0x%x\n", flash_data);
 957 }
 958
 959 static ssize_t nes_store_flash_data(struct device_driver *ddp,
 960         const char *buf, size_t count)
 961 {
 962         char *p = (char *)buf;
 963         u32 val;
 964         u32 i = 0;
 965         struct nes_device *nesdev;
 966
 967         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
 968                 val = simple_strtoul(p, &p, 16);
 969                 list_for_each_entry(nesdev, &nes_dev_list, list) {
 970                         if (i == ee_flsh_adapter) {
 971                                 nes_write32(nesdev->regs + NES_FLASH_DATA, val);
 972                                 break;
 973                         }
 974                         i++;
 975                 }
 976         }
 977         return strnlen(buf, count);
 978 }
 979
 980 static ssize_t nes_show_nonidx_addr(struct device_driver *ddp, char *buf)
 981 {
 982         return  snprintf(buf, PAGE_SIZE, "0x%x\n", sysfs_nonidx_addr);
 983 }
 984
 985 static ssize_t nes_store_nonidx_addr(struct device_driver *ddp,
 986         const char *buf, size_t count)
 987 {
 988         char *p = (char *)buf;
 989
 990         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X')
 991                 sysfs_nonidx_addr = simple_strtoul(p, &p, 16);
 992
 993         return strnlen(buf, count);
 994 }
 995
 996 static ssize_t nes_show_nonidx_data(struct device_driver *ddp, char *buf)
 997 {
 998         u32 nonidx_data = 0xdead;
 999         u32 i = 0;
1000         struct nes_device *nesdev;
1001
1002         list_for_each_entry(nesdev, &nes_dev_list, list) {
1003                 if (i == ee_flsh_adapter) {
1004                         nonidx_data = nes_read32(nesdev->regs + sysfs_nonidx_addr);
1005                         break;
1006                 }
1007                 i++;
1008         }
1009
1010         return  snprintf(buf, PAGE_SIZE, "0x%x\n", nonidx_data);
1011 }
1012
1013 static ssize_t nes_store_nonidx_data(struct device_driver *ddp,
1014         const char *buf, size_t count)
1015 {
1016         char *p = (char *)buf;
1017         u32 val;
1018         u32 i = 0;
1019         struct nes_device *nesdev;
1020
1021         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
1022                 val = simple_strtoul(p, &p, 16);
1023                 list_for_each_entry(nesdev, &nes_dev_list, list) {
1024                         if (i == ee_flsh_adapter) {
1025                                 nes_write32(nesdev->regs + sysfs_nonidx_addr, val);
1026                                 break;
1027                         }
1028                         i++;
1029                 }
1030         }
1031         return strnlen(buf, count);
1032 }
1033
1034 static ssize_t nes_show_idx_addr(struct device_driver *ddp, char *buf)
1035 {
1036         return  snprintf(buf, PAGE_SIZE, "0x%x\n", sysfs_idx_addr);
1037 }
1038
1039 static ssize_t nes_store_idx_addr(struct device_driver *ddp,
1040         const char *buf, size_t count)
1041 {
1042         char *p = (char *)buf;
1043
1044         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X')
1045                 sysfs_idx_addr = simple_strtoul(p, &p, 16);
1046
1047         return strnlen(buf, count);
1048 }
1049
1050 static ssize_t nes_show_idx_data(struct device_driver *ddp, char *buf)
1051 {
1052         u32 idx_data = 0xdead;
1053         u32 i = 0;
1054         struct nes_device *nesdev;
1055
1056         list_for_each_entry(nesdev, &nes_dev_list, list) {
1057                 if (i == ee_flsh_adapter) {
1058                         idx_data = nes_read_indexed(nesdev, sysfs_idx_addr);
1059                         break;
1060                 }
1061                 i++;
1062         }
1063
1064         return  snprintf(buf, PAGE_SIZE, "0x%x\n", idx_data);
1065 }
1066
1067 static ssize_t nes_store_idx_data(struct device_driver *ddp,
1068         const char *buf, size_t count)
1069 {
1070         char *p = (char *)buf;
1071         u32 val;
1072         u32 i = 0;
1073         struct nes_device *nesdev;
1074
1075         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
1076                 val = simple_strtoul(p, &p, 16);
1077                 list_for_each_entry(nesdev, &nes_dev_list, list) {
1078                         if (i == ee_flsh_adapter) {
1079                                 nes_write_indexed(nesdev, sysfs_idx_addr, val);
1080                                 break;
1081                         }
1082                         i++;
1083                 }
1084         }
1085         return strnlen(buf, count);
1086 }
1087
1088
1089 /**
1090  * nes_show_wqm_quanta
1091  */
1092 static ssize_t nes_show_wqm_quanta(struct device_driver *ddp, char *buf)
1093 {
1094         u32 wqm_quanta_value = 0xdead;
1095         u32 i = 0;
1096         struct nes_device *nesdev;
1097
1098         list_for_each_entry(nesdev, &nes_dev_list, list) {
1099                 if (i == ee_flsh_adapter) {
1100                         wqm_quanta_value = nesdev->nesadapter->wqm_quanta;
1101                         break;
1102                 }
1103                 i++;
1104         }
1105
1106         return  snprintf(buf, PAGE_SIZE, "0x%X\n", wqm_quanta);
1107 }
1108
1109
1110 /**
1111  * nes_store_wqm_quanta
1112  */
1113 static ssize_t nes_store_wqm_quanta(struct device_driver *ddp,
1114                                         const char *buf, size_t count)
1115 {
1116         unsigned long wqm_quanta_value;
1117         u32 wqm_config1;
1118         u32 i = 0;
1119         struct nes_device *nesdev;
1120
1121         strict_strtoul(buf, 0, &wqm_quanta_value);
1122         list_for_each_entry(nesdev, &nes_dev_list, list) {
1123                 if (i == ee_flsh_adapter) {
1124                         nesdev->nesadapter->wqm_quanta = wqm_quanta_value;
1125                         wqm_config1 = nes_read_indexed(nesdev,
1126                                                 NES_IDX_WQM_CONFIG1);
1127                         nes_write_indexed(nesdev, NES_IDX_WQM_CONFIG1,
1128                                         ((wqm_quanta_value << 1) |
1129                                         (wqm_config1 & 0x00000001)));
1130                         break;
1131                 }
1132                 i++;
1133         }
1134         return strnlen(buf, count);
1135 }
1136
1137 static DRIVER_ATTR(adapter, S_IRUSR | S_IWUSR,
1138                    nes_show_adapter, nes_store_adapter);
1139 static DRIVER_ATTR(eeprom_cmd, S_IRUSR | S_IWUSR,
1140                    nes_show_ee_cmd, nes_store_ee_cmd);
1141 static DRIVER_ATTR(eeprom_data, S_IRUSR | S_IWUSR,
1142                    nes_show_ee_data, nes_store_ee_data);
1143 static DRIVER_ATTR(flash_cmd, S_IRUSR | S_IWUSR,
1144                    nes_show_flash_cmd, nes_store_flash_cmd);
1145 static DRIVER_ATTR(flash_data, S_IRUSR | S_IWUSR,
1146                    nes_show_flash_data, nes_store_flash_data);
1147 static DRIVER_ATTR(nonidx_addr, S_IRUSR | S_IWUSR,
1148                    nes_show_nonidx_addr, nes_store_nonidx_addr);
1149 static DRIVER_ATTR(nonidx_data, S_IRUSR | S_IWUSR,
1150                    nes_show_nonidx_data, nes_store_nonidx_data);
1151 static DRIVER_ATTR(idx_addr, S_IRUSR | S_IWUSR,
1152                    nes_show_idx_addr, nes_store_idx_addr);
1153 static DRIVER_ATTR(idx_data, S_IRUSR | S_IWUSR,
1154                    nes_show_idx_data, nes_store_idx_data);
1155 static DRIVER_ATTR(wqm_quanta, S_IRUSR | S_IWUSR,
1156                    nes_show_wqm_quanta, nes_store_wqm_quanta);
1157
1158 static int nes_create_driver_sysfs(struct pci_driver *drv)
1159 {
1160         int error;
1161         error  = driver_create_file(&drv->driver, &driver_attr_adapter);
1162         error |= driver_create_file(&drv->driver, &driver_attr_eeprom_cmd);
1163         error |= driver_create_file(&drv->driver, &driver_attr_eeprom_data);
1164         error |= driver_create_file(&drv->driver, &driver_attr_flash_cmd);
1165         error |= driver_create_file(&drv->driver, &driver_attr_flash_data);
1166         error |= driver_create_file(&drv->driver, &driver_attr_nonidx_addr);
1167         error |= driver_create_file(&drv->driver, &driver_attr_nonidx_data);
1168         error |= driver_create_file(&drv->driver, &driver_attr_idx_addr);
1169         error |= driver_create_file(&drv->driver, &driver_attr_idx_data);
1170         error |= driver_create_file(&drv->driver, &driver_attr_wqm_quanta);
1171         return error;
1172 }
1173
1174 static void nes_remove_driver_sysfs(struct pci_driver *drv)
1175 {
1176         driver_remove_file(&drv->driver, &driver_attr_adapter);
1177         driver_remove_file(&drv->driver, &driver_attr_eeprom_cmd);
1178         driver_remove_file(&drv->driver, &driver_attr_eeprom_data);
1179         driver_remove_file(&drv->driver, &driver_attr_flash_cmd);
1180         driver_remove_file(&drv->driver, &driver_attr_flash_data);
1181         driver_remove_file(&drv->driver, &driver_attr_nonidx_addr);
1182         driver_remove_file(&drv->driver, &driver_attr_nonidx_data);
1183         driver_remove_file(&drv->driver, &driver_attr_idx_addr);
1184         driver_remove_file(&drv->driver, &driver_attr_idx_data);
1185         driver_remove_file(&drv->driver, &driver_attr_wqm_quanta);
1186 }
1187
1188 /**
1189  * nes_init_module - module initialization entry point
1190  */
1191 static int __init nes_init_module(void)
1192 {
1193         int retval;
1194         int retval1;
1195
1196         retval = nes_cm_start();
1197         if (retval) {
1198                 printk(KERN_ERR PFX "Unable to start NetEffect iWARP CM.\n");
1199                 return retval;
1200         }
1201         retval = pci_register_driver(&nes_pci_driver);
1202         if (retval >= 0) {
1203                 retval1 = nes_create_driver_sysfs(&nes_pci_driver);
1204                 if (retval1 < 0)
1205                         printk(KERN_ERR PFX "Unable to create NetEffect sys files.\n");
1206         }
1207         return retval;
1208 }
1209
1210
1211 /**
1212  * nes_exit_module - module unload entry point
1213  */
1214 static void __exit nes_exit_module(void)
1215 {
1216         nes_cm_stop();
1217         nes_remove_driver_sysfs(&nes_pci_driver);
1218
1219         pci_unregister_driver(&nes_pci_driver);
1220 }
1221
1222
1223 module_init(nes_init_module);
1224 module_exit(nes_exit_module);