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 <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 MODULE_VERSION(DRV_VERSION);
  67
  68 int max_mtu = 9000;
  69 int interrupt_mod_interval = 0;
  70
  71
  72 /* Interoperability */
  73 int mpa_version = 1;
  74 module_param(mpa_version, int, 0644);
  75 MODULE_PARM_DESC(mpa_version, "MPA version to be used int MPA Req/Resp (0 or 1)");
  76
  77 /* Interoperability */
  78 int disable_mpa_crc = 0;
  79 module_param(disable_mpa_crc, int, 0644);
  80 MODULE_PARM_DESC(disable_mpa_crc, "Disable checking of MPA CRC");
  81
  82 unsigned int send_first = 0;
  83 module_param(send_first, int, 0644);
  84 MODULE_PARM_DESC(send_first, "Send RDMA Message First on Active Connection");
  85
  86
  87 unsigned int nes_drv_opt = 0;
  88 module_param(nes_drv_opt, int, 0644);
  89 MODULE_PARM_DESC(nes_drv_opt, "Driver option parameters");
  90
  91 unsigned int nes_debug_level = 0;
  92 module_param_named(debug_level, nes_debug_level, uint, 0644);
  93 MODULE_PARM_DESC(debug_level, "Enable debug output level");
  94
  95 unsigned int wqm_quanta = 0x10000;
  96 module_param(wqm_quanta, int, 0644);
  97 MODULE_PARM_DESC(wqm_quanta, "WQM quanta");
  98
  99 static unsigned int limit_maxrdreqsz;
 100 module_param(limit_maxrdreqsz, bool, 0644);
 101 MODULE_PARM_DESC(limit_maxrdreqsz, "Limit max read request size to 256 Bytes");
 102
 103 LIST_HEAD(nes_adapter_list);
 104 static LIST_HEAD(nes_dev_list);
 105
 106 atomic_t qps_destroyed;
 107
 108 static unsigned int ee_flsh_adapter;
 109 static unsigned int sysfs_nonidx_addr;
 110 static unsigned int sysfs_idx_addr;
 111
 112 static struct pci_device_id nes_pci_table[] = {
 113         { PCI_VDEVICE(NETEFFECT, PCI_DEVICE_ID_NETEFFECT_NE020), },
 114         { PCI_VDEVICE(NETEFFECT, PCI_DEVICE_ID_NETEFFECT_NE020_KR), },
 115         {0}
 116 };
 117
 118 MODULE_DEVICE_TABLE(pci, nes_pci_table);
 119
 120 static int nes_inetaddr_event(struct notifier_block *, unsigned long, void *);
 121 static int nes_net_event(struct notifier_block *, unsigned long, void *);
 122 static int nes_notifiers_registered;
 123
 124
 125 static struct notifier_block nes_inetaddr_notifier = {
 126         .notifier_call = nes_inetaddr_event
 127 };
 128
 129 static struct notifier_block nes_net_notifier = {
 130         .notifier_call = nes_net_event
 131 };
 132
 133
 134
 135
 136 /**
 137  * nes_inetaddr_event
 138  */
 139 static int nes_inetaddr_event(struct notifier_block *notifier,
 140                 unsigned long event, void *ptr)
 141 {
 142         struct in_ifaddr *ifa = ptr;
 143         struct net_device *event_netdev = ifa->ifa_dev->dev;
 144         struct nes_device *nesdev;
 145         struct net_device *netdev;
 146         struct nes_vnic *nesvnic;
 147         unsigned int is_bonded;
 148
 149         nes_debug(NES_DBG_NETDEV, "nes_inetaddr_event: ip address %pI4, netmask %pI4.\n",
 150                   &ifa->ifa_address, &ifa->ifa_mask);
 151         list_for_each_entry(nesdev, &nes_dev_list, list) {
 152                 nes_debug(NES_DBG_NETDEV, "Nesdev list entry = 0x%p. (%s)\n",
 153                                 nesdev, nesdev->netdev[0]->name);
 154                 netdev = nesdev->netdev[0];
 155                 nesvnic = netdev_priv(netdev);
 156                 is_bonded = netif_is_bond_slave(netdev) &&
 157                             (netdev->master == event_netdev);
 158                 if ((netdev == event_netdev) || is_bonded) {
 159                         if (nesvnic->rdma_enabled == 0) {
 160                                 nes_debug(NES_DBG_NETDEV, "Returning without processing event for %s since"
 161                                                 " RDMA is not enabled.\n",
 162                                                 netdev->name);
 163                                 return NOTIFY_OK;
 164                         }
 165                         /* we have ifa->ifa_address/mask here if we need it */
 166                         switch (event) {
 167                                 case NETDEV_DOWN:
 168                                         nes_debug(NES_DBG_NETDEV, "event:DOWN\n");
 169                                         nes_write_indexed(nesdev,
 170                                                         NES_IDX_DST_IP_ADDR+(0x10*PCI_FUNC(nesdev->pcidev->devfn)), 0);
 171
 172                                         nes_manage_arp_cache(netdev, netdev->dev_addr,
 173                                                         ntohl(nesvnic->local_ipaddr), NES_ARP_DELETE);
 174                                         nesvnic->local_ipaddr = 0;
 175                                         if (is_bonded)
 176                                                 continue;
 177                                         else
 178                                                 return NOTIFY_OK;
 179                                         break;
 180                                 case NETDEV_UP:
 181                                         nes_debug(NES_DBG_NETDEV, "event:UP\n");
 182
 183                                         if (nesvnic->local_ipaddr != 0) {
 184                                                 nes_debug(NES_DBG_NETDEV, "Interface already has local_ipaddr\n");
 185                                                 return NOTIFY_OK;
 186                                         }
 187                                         /* fall through */
 188                                 case NETDEV_CHANGEADDR:
 189                                         /* Add the address to the IP table */
 190                                         if (netdev->master)
 191                                                 nesvnic->local_ipaddr =
 192                                                         ((struct in_device *)netdev->master->ip_ptr)->ifa_list->ifa_address;
 193                                         else
 194                                                 nesvnic->local_ipaddr = ifa->ifa_address;
 195
 196                                         nes_write_indexed(nesdev,
 197                                                         NES_IDX_DST_IP_ADDR+(0x10*PCI_FUNC(nesdev->pcidev->devfn)),
 198                                                         ntohl(nesvnic->local_ipaddr));
 199                                         nes_manage_arp_cache(netdev, netdev->dev_addr,
 200                                                         ntohl(nesvnic->local_ipaddr), NES_ARP_ADD);
 201                                         if (is_bonded)
 202                                                 continue;
 203                                         else
 204                                                 return NOTIFY_OK;
 205                                         break;
 206                                 default:
 207                                         break;
 208                         }
 209                 }
 210         }
 211
 212         return NOTIFY_DONE;
 213 }
 214
 215
 216 /**
 217  * nes_net_event
 218  */
 219 static int nes_net_event(struct notifier_block *notifier,
 220                 unsigned long event, void *ptr)
 221 {
 222         struct neighbour *neigh = ptr;
 223         struct nes_device *nesdev;
 224         struct net_device *netdev;
 225         struct nes_vnic *nesvnic;
 226
 227         switch (event) {
 228                 case NETEVENT_NEIGH_UPDATE:
 229                         list_for_each_entry(nesdev, &nes_dev_list, list) {
 230                                 /* nes_debug(NES_DBG_NETDEV, "Nesdev list entry = 0x%p.\n", nesdev); */
 231                                 netdev = nesdev->netdev[0];
 232                                 nesvnic = netdev_priv(netdev);
 233                                 if (netdev == neigh->dev) {
 234                                         if (nesvnic->rdma_enabled == 0) {
 235                                                 nes_debug(NES_DBG_NETDEV, "Skipping device %s since no RDMA\n",
 236                                                                 netdev->name);
 237                                         } else {
 238                                                 if (neigh->nud_state & NUD_VALID) {
 239                                                         nes_manage_arp_cache(neigh->dev, neigh->ha,
 240                                                                         ntohl(*(__be32 *)neigh->primary_key), NES_ARP_ADD);
 241                                                 } else {
 242                                                         nes_manage_arp_cache(neigh->dev, neigh->ha,
 243                                                                         ntohl(*(__be32 *)neigh->primary_key), NES_ARP_DELETE);
 244                                                 }
 245                                         }
 246                                         return NOTIFY_OK;
 247                                 }
 248                         }
 249                         break;
 250                 default:
 251                         nes_debug(NES_DBG_NETDEV, "NETEVENT_ %lu undefined\n", event);
 252                         break;
 253         }
 254
 255         return NOTIFY_DONE;
 256 }
 257
 258
 259 /**
 260  * nes_add_ref
 261  */
 262 void nes_add_ref(struct ib_qp *ibqp)
 263 {
 264         struct nes_qp *nesqp;
 265
 266         nesqp = to_nesqp(ibqp);
 267         nes_debug(NES_DBG_QP, "Bumping refcount for QP%u.  Pre-inc value = %u\n",
 268                         ibqp->qp_num, atomic_read(&nesqp->refcount));
 269         atomic_inc(&nesqp->refcount);
 270 }
 271
 272 static void nes_cqp_rem_ref_callback(struct nes_device *nesdev, struct nes_cqp_request *cqp_request)
 273 {
 274         unsigned long flags;
 275         struct nes_qp *nesqp = cqp_request->cqp_callback_pointer;
 276         struct nes_adapter *nesadapter = nesdev->nesadapter;
 277
 278         atomic_inc(&qps_destroyed);
 279
 280         /* Free the control structures */
 281
 282         if (nesqp->pbl_vbase) {
 283                 pci_free_consistent(nesdev->pcidev, nesqp->qp_mem_size,
 284                                 nesqp->hwqp.q2_vbase, nesqp->hwqp.q2_pbase);
 285                 spin_lock_irqsave(&nesadapter->pbl_lock, flags);
 286                 nesadapter->free_256pbl++;
 287                 spin_unlock_irqrestore(&nesadapter->pbl_lock, flags);
 288                 pci_free_consistent(nesdev->pcidev, 256, nesqp->pbl_vbase, nesqp->pbl_pbase);
 289                 nesqp->pbl_vbase = NULL;
 290
 291         } else {
 292                 pci_free_consistent(nesdev->pcidev, nesqp->qp_mem_size,
 293                                 nesqp->hwqp.sq_vbase, nesqp->hwqp.sq_pbase);
 294         }
 295         nes_free_resource(nesadapter, nesadapter->allocated_qps, nesqp->hwqp.qp_id);
 296
 297         nesadapter->qp_table[nesqp->hwqp.qp_id-NES_FIRST_QPN] = NULL;
 298         kfree(nesqp->allocated_buffer);
 299
 300 }
 301
 302 /**
 303  * nes_rem_ref
 304  */
 305 void nes_rem_ref(struct ib_qp *ibqp)
 306 {
 307         u64 u64temp;
 308         struct nes_qp *nesqp;
 309         struct nes_vnic *nesvnic = to_nesvnic(ibqp->device);
 310         struct nes_device *nesdev = nesvnic->nesdev;
 311         struct nes_hw_cqp_wqe *cqp_wqe;
 312         struct nes_cqp_request *cqp_request;
 313         u32 opcode;
 314
 315         nesqp = to_nesqp(ibqp);
 316
 317         if (atomic_read(&nesqp->refcount) == 0) {
 318                 printk(KERN_INFO PFX "%s: Reference count already 0 for QP%d, last aeq = 0x%04X.\n",
 319                                 __func__, ibqp->qp_num, nesqp->last_aeq);
 320                 BUG();
 321         }
 322
 323         if (atomic_dec_and_test(&nesqp->refcount)) {
 324                 /* Destroy the QP */
 325                 cqp_request = nes_get_cqp_request(nesdev);
 326                 if (cqp_request == NULL) {
 327                         nes_debug(NES_DBG_QP, "Failed to get a cqp_request.\n");
 328                         return;
 329                 }
 330                 cqp_request->waiting = 0;
 331                 cqp_request->callback = 1;
 332                 cqp_request->cqp_callback = nes_cqp_rem_ref_callback;
 333                 cqp_request->cqp_callback_pointer = nesqp;
 334                 cqp_wqe = &cqp_request->cqp_wqe;
 335
 336                 nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
 337                 opcode = NES_CQP_DESTROY_QP | NES_CQP_QP_TYPE_IWARP;
 338
 339                 if (nesqp->hte_added) {
 340                         opcode  |= NES_CQP_QP_DEL_HTE;
 341                         nesqp->hte_added = 0;
 342                 }
 343                 set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, opcode);
 344                 set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX, nesqp->hwqp.qp_id);
 345                 u64temp = (u64)nesqp->nesqp_context_pbase;
 346                 set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_QP_WQE_CONTEXT_LOW_IDX, u64temp);
 347                 nes_post_cqp_request(nesdev, cqp_request);
 348         }
 349 }
 350
 351
 352 /**
 353  * nes_get_qp
 354  */
 355 struct ib_qp *nes_get_qp(struct ib_device *device, int qpn)
 356 {
 357         struct nes_vnic *nesvnic = to_nesvnic(device);
 358         struct nes_device *nesdev = nesvnic->nesdev;
 359         struct nes_adapter *nesadapter = nesdev->nesadapter;
 360
 361         if ((qpn < NES_FIRST_QPN) || (qpn >= (NES_FIRST_QPN + nesadapter->max_qp)))
 362                 return NULL;
 363
 364         return &nesadapter->qp_table[qpn - NES_FIRST_QPN]->ibqp;
 365 }
 366
 367
 368 /**
 369  * nes_print_macaddr
 370  */
 371 static void nes_print_macaddr(struct net_device *netdev)
 372 {
 373         nes_debug(NES_DBG_INIT, "%s: %pM, IRQ %u\n",
 374                   netdev->name, netdev->dev_addr, netdev->irq);
 375 }
 376
 377 /**
 378  * nes_interrupt - handle interrupts
 379  */
 380 static irqreturn_t nes_interrupt(int irq, void *dev_id)
 381 {
 382         struct nes_device *nesdev = (struct nes_device *)dev_id;
 383         int handled = 0;
 384         u32 int_mask;
 385         u32 int_req;
 386         u32 int_stat;
 387         u32 intf_int_stat;
 388         u32 timer_stat;
 389
 390         if (nesdev->msi_enabled) {
 391                 /* No need to read the interrupt pending register if msi is enabled */
 392                 handled = 1;
 393         } else {
 394                 if (unlikely(nesdev->nesadapter->hw_rev == NE020_REV)) {
 395                         /* Master interrupt enable provides synchronization for kicking off bottom half
 396                           when interrupt sharing is going on */
 397                         int_mask = nes_read32(nesdev->regs + NES_INT_MASK);
 398                         if (int_mask & 0x80000000) {
 399                                 /* Check interrupt status to see if this might be ours */
 400                                 int_stat = nes_read32(nesdev->regs + NES_INT_STAT);
 401                                 int_req = nesdev->int_req;
 402                                 if (int_stat&int_req) {
 403                                         /* if interesting CEQ or AEQ is pending, claim the interrupt */
 404                                         if ((int_stat&int_req) & (~(NES_INT_TIMER|NES_INT_INTF))) {
 405                                                 handled = 1;
 406                                         } else {
 407                                                 if (((int_stat & int_req) & NES_INT_TIMER) == NES_INT_TIMER) {
 408                                                         /* Timer might be running but might be for another function */
 409                                                         timer_stat = nes_read32(nesdev->regs + NES_TIMER_STAT);
 410                                                         if ((timer_stat & nesdev->timer_int_req) != 0) {
 411                                                                 handled = 1;
 412                                                         }
 413                                                 }
 414                                                 if ((((int_stat & int_req) & NES_INT_INTF) == NES_INT_INTF) &&
 415                                                                 (handled == 0)) {
 416                                                         intf_int_stat = nes_read32(nesdev->regs+NES_INTF_INT_STAT);
 417                                                         if ((intf_int_stat & nesdev->intf_int_req) != 0) {
 418                                                                 handled = 1;
 419                                                         }
 420                                                 }
 421                                         }
 422                                         if (handled) {
 423                                                 nes_write32(nesdev->regs+NES_INT_MASK, int_mask & (~0x80000000));
 424                                                 int_mask = nes_read32(nesdev->regs+NES_INT_MASK);
 425                                                 /* Save off the status to save an additional read */
 426                                                 nesdev->int_stat = int_stat;
 427                                                 nesdev->napi_isr_ran = 1;
 428                                         }
 429                                 }
 430                         }
 431                 } else {
 432                         handled = nes_read32(nesdev->regs+NES_INT_PENDING);
 433                 }
 434         }
 435
 436         if (handled) {
 437
 438                 if (nes_napi_isr(nesdev) == 0) {
 439                         tasklet_schedule(&nesdev->dpc_tasklet);
 440
 441                 }
 442                 return IRQ_HANDLED;
 443         } else {
 444                 return IRQ_NONE;
 445         }
 446 }
 447
 448
 449 /**
 450  * nes_probe - Device initialization
 451  */
 452 static int __devinit nes_probe(struct pci_dev *pcidev, const struct pci_device_id *ent)
 453 {
 454         struct net_device *netdev = NULL;
 455         struct nes_device *nesdev = NULL;
 456         int ret = 0;
 457         void __iomem *mmio_regs = NULL;
 458         u8 hw_rev;
 459
 460         assert(pcidev != NULL);
 461         assert(ent != NULL);
 462
 463         printk(KERN_INFO PFX "NetEffect RNIC driver v%s loading. (%s)\n",
 464                         DRV_VERSION, pci_name(pcidev));
 465
 466         ret = pci_enable_device(pcidev);
 467         if (ret) {
 468                 printk(KERN_ERR PFX "Unable to enable PCI device. (%s)\n", pci_name(pcidev));
 469                 goto bail0;
 470         }
 471
 472         nes_debug(NES_DBG_INIT, "BAR0 (@0x%08lX) size = 0x%lX bytes\n",
 473                         (long unsigned int)pci_resource_start(pcidev, BAR_0),
 474                         (long unsigned int)pci_resource_len(pcidev, BAR_0));
 475         nes_debug(NES_DBG_INIT, "BAR1 (@0x%08lX) size = 0x%lX bytes\n",
 476                         (long unsigned int)pci_resource_start(pcidev, BAR_1),
 477                         (long unsigned int)pci_resource_len(pcidev, BAR_1));
 478
 479         /* Make sure PCI base addr are MMIO */
 480         if (!(pci_resource_flags(pcidev, BAR_0) & IORESOURCE_MEM) ||
 481                         !(pci_resource_flags(pcidev, BAR_1) & IORESOURCE_MEM)) {
 482                 printk(KERN_ERR PFX "PCI regions not an MMIO resource\n");
 483                 ret = -ENODEV;
 484                 goto bail1;
 485         }
 486
 487         /* Reserve PCI I/O and memory resources */
 488         ret = pci_request_regions(pcidev, DRV_NAME);
 489         if (ret) {
 490                 printk(KERN_ERR PFX "Unable to request regions. (%s)\n", pci_name(pcidev));
 491                 goto bail1;
 492         }
 493
 494         if ((sizeof(dma_addr_t) > 4)) {
 495                 ret = pci_set_dma_mask(pcidev, DMA_BIT_MASK(64));
 496                 if (ret < 0) {
 497                         printk(KERN_ERR PFX "64b DMA mask configuration failed\n");
 498                         goto bail2;
 499                 }
 500                 ret = pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(64));
 501                 if (ret) {
 502                         printk(KERN_ERR PFX "64b DMA consistent mask configuration failed\n");
 503                         goto bail2;
 504                 }
 505         } else {
 506                 ret = pci_set_dma_mask(pcidev, DMA_BIT_MASK(32));
 507                 if (ret < 0) {
 508                         printk(KERN_ERR PFX "32b DMA mask configuration failed\n");
 509                         goto bail2;
 510                 }
 511                 ret = pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(32));
 512                 if (ret) {
 513                         printk(KERN_ERR PFX "32b DMA consistent mask configuration failed\n");
 514                         goto bail2;
 515                 }
 516         }
 517
 518         pci_set_master(pcidev);
 519
 520         /* Allocate hardware structure */
 521         nesdev = kzalloc(sizeof(struct nes_device), GFP_KERNEL);
 522         if (!nesdev) {
 523                 printk(KERN_ERR PFX "%s: Unable to alloc hardware struct\n", pci_name(pcidev));
 524                 ret = -ENOMEM;
 525                 goto bail2;
 526         }
 527
 528         nes_debug(NES_DBG_INIT, "Allocated nes device at %p\n", nesdev);
 529         nesdev->pcidev = pcidev;
 530         pci_set_drvdata(pcidev, nesdev);
 531
 532         pci_read_config_byte(pcidev, 0x0008, &hw_rev);
 533         nes_debug(NES_DBG_INIT, "hw_rev=%u\n", hw_rev);
 534
 535         spin_lock_init(&nesdev->indexed_regs_lock);
 536
 537         /* Remap the PCI registers in adapter BAR0 to kernel VA space */
 538         mmio_regs = ioremap_nocache(pci_resource_start(pcidev, BAR_0),
 539                                     pci_resource_len(pcidev, BAR_0));
 540         if (mmio_regs == NULL) {
 541                 printk(KERN_ERR PFX "Unable to remap BAR0\n");
 542                 ret = -EIO;
 543                 goto bail3;
 544         }
 545         nesdev->regs = mmio_regs;
 546         nesdev->index_reg = 0x50 + (PCI_FUNC(pcidev->devfn)*8) + mmio_regs;
 547
 548         /* Ensure interrupts are disabled */
 549         nes_write32(nesdev->regs+NES_INT_MASK, 0x7fffffff);
 550
 551         if (nes_drv_opt & NES_DRV_OPT_ENABLE_MSI) {
 552                 if (!pci_enable_msi(nesdev->pcidev)) {
 553                         nesdev->msi_enabled = 1;
 554                         nes_debug(NES_DBG_INIT, "MSI is enabled for device %s\n",
 555                                         pci_name(pcidev));
 556                 } else {
 557                         nes_debug(NES_DBG_INIT, "MSI is disabled by linux for device %s\n",
 558                                         pci_name(pcidev));
 559                 }
 560         } else {
 561                 nes_debug(NES_DBG_INIT, "MSI not requested due to driver options for device %s\n",
 562                                 pci_name(pcidev));
 563         }
 564
 565         nesdev->csr_start = pci_resource_start(nesdev->pcidev, BAR_0);
 566         nesdev->doorbell_region = pci_resource_start(nesdev->pcidev, BAR_1);
 567
 568         /* Init the adapter */
 569         nesdev->nesadapter = nes_init_adapter(nesdev, hw_rev);
 570         if (!nesdev->nesadapter) {
 571                 printk(KERN_ERR PFX "Unable to initialize adapter.\n");
 572                 ret = -ENOMEM;
 573                 goto bail5;
 574         }
 575         nesdev->nesadapter->et_rx_coalesce_usecs_irq = interrupt_mod_interval;
 576         nesdev->nesadapter->wqm_quanta = wqm_quanta;
 577
 578         /* nesdev->base_doorbell_index =
 579                         nesdev->nesadapter->pd_config_base[PCI_FUNC(nesdev->pcidev->devfn)]; */
 580         nesdev->base_doorbell_index = 1;
 581         nesdev->doorbell_start = nesdev->nesadapter->doorbell_start;
 582         if (nesdev->nesadapter->phy_type[0] == NES_PHY_TYPE_PUMA_1G) {
 583                 switch (PCI_FUNC(nesdev->pcidev->devfn) %
 584                         nesdev->nesadapter->port_count) {
 585                 case 1:
 586                         nesdev->mac_index = 2;
 587                         break;
 588                 case 2:
 589                         nesdev->mac_index = 1;
 590                         break;
 591                 case 3:
 592                         nesdev->mac_index = 3;
 593                         break;
 594                 case 0:
 595                 default:
 596                         nesdev->mac_index = 0;
 597                 }
 598         } else {
 599                 nesdev->mac_index = PCI_FUNC(nesdev->pcidev->devfn) %
 600                                                 nesdev->nesadapter->port_count;
 601         }
 602
 603         if ((limit_maxrdreqsz ||
 604              ((nesdev->nesadapter->phy_type[0] == NES_PHY_TYPE_GLADIUS) &&
 605               (hw_rev == NE020_REV1))) &&
 606             (pcie_get_readrq(pcidev) > 256)) {
 607                 if (pcie_set_readrq(pcidev, 256))
 608                         printk(KERN_ERR PFX "Unable to set max read request"
 609                                 " to 256 bytes\n");
 610                 else
 611                         nes_debug(NES_DBG_INIT, "Max read request size set"
 612                                 " to 256 bytes\n");
 613         }
 614
 615         tasklet_init(&nesdev->dpc_tasklet, nes_dpc, (unsigned long)nesdev);
 616
 617         /* bring up the Control QP */
 618         if (nes_init_cqp(nesdev)) {
 619                 ret = -ENODEV;
 620                 goto bail6;
 621         }
 622
 623         /* Arm the CCQ */
 624         nes_write32(nesdev->regs+NES_CQE_ALLOC, NES_CQE_ALLOC_NOTIFY_NEXT |
 625                         PCI_FUNC(nesdev->pcidev->devfn));
 626         nes_read32(nesdev->regs+NES_CQE_ALLOC);
 627
 628         /* Enable the interrupts */
 629         nesdev->int_req = (0x101 << PCI_FUNC(nesdev->pcidev->devfn)) |
 630                         (1 << (PCI_FUNC(nesdev->pcidev->devfn)+16));
 631         if (PCI_FUNC(nesdev->pcidev->devfn) < 4) {
 632                 nesdev->int_req |= (1 << (PCI_FUNC(nesdev->mac_index)+24));
 633         }
 634
 635         /* TODO: This really should be the first driver to load, not function 0 */
 636         if (PCI_FUNC(nesdev->pcidev->devfn) == 0) {
 637                 /* pick up PCI and critical errors if the first driver to load */
 638                 nesdev->intf_int_req = NES_INTF_INT_PCIERR | NES_INTF_INT_CRITERR;
 639                 nesdev->int_req |= NES_INT_INTF;
 640         } else {
 641                 nesdev->intf_int_req = 0;
 642         }
 643         nesdev->intf_int_req |= (1 << (PCI_FUNC(nesdev->pcidev->devfn)+16));
 644         nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS0, 0);
 645         nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS1, 0);
 646         nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS2, 0x00001265);
 647         nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS4, 0x18021804);
 648
 649         nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS3, 0x17801790);
 650
 651         /* deal with both periodic and one_shot */
 652         nesdev->timer_int_req = 0x101 << PCI_FUNC(nesdev->pcidev->devfn);
 653         nesdev->nesadapter->timer_int_req |= nesdev->timer_int_req;
 654         nes_debug(NES_DBG_INIT, "setting int_req for function %u, nesdev = 0x%04X, adapter = 0x%04X\n",
 655                         PCI_FUNC(nesdev->pcidev->devfn),
 656                         nesdev->timer_int_req, nesdev->nesadapter->timer_int_req);
 657
 658         nes_write32(nesdev->regs+NES_INTF_INT_MASK, ~(nesdev->intf_int_req));
 659
 660         list_add_tail(&nesdev->list, &nes_dev_list);
 661
 662         /* Request an interrupt line for the driver */
 663         ret = request_irq(pcidev->irq, nes_interrupt, IRQF_SHARED, DRV_NAME, nesdev);
 664         if (ret) {
 665                 printk(KERN_ERR PFX "%s: requested IRQ %u is busy\n",
 666                                 pci_name(pcidev), pcidev->irq);
 667                 goto bail65;
 668         }
 669
 670         nes_write32(nesdev->regs+NES_INT_MASK, ~nesdev->int_req);
 671
 672         if (nes_notifiers_registered == 0) {
 673                 register_inetaddr_notifier(&nes_inetaddr_notifier);
 674                 register_netevent_notifier(&nes_net_notifier);
 675         }
 676         nes_notifiers_registered++;
 677
 678         INIT_DELAYED_WORK(&nesdev->work, nes_recheck_link_status);
 679
 680         /* Initialize network devices */
 681         if ((netdev = nes_netdev_init(nesdev, mmio_regs)) == NULL)
 682                 goto bail7;
 683
 684         /* Register network device */
 685         ret = register_netdev(netdev);
 686         if (ret) {
 687                 printk(KERN_ERR PFX "Unable to register netdev, ret = %d\n", ret);
 688                 nes_netdev_destroy(netdev);
 689                 goto bail7;
 690         }
 691
 692         nes_print_macaddr(netdev);
 693
 694         nesdev->netdev_count++;
 695         nesdev->nesadapter->netdev_count++;
 696
 697         printk(KERN_INFO PFX "%s: NetEffect RNIC driver successfully loaded.\n",
 698                         pci_name(pcidev));
 699         return 0;
 700
 701         bail7:
 702         printk(KERN_ERR PFX "bail7\n");
 703         while (nesdev->netdev_count > 0) {
 704                 nesdev->netdev_count--;
 705                 nesdev->nesadapter->netdev_count--;
 706
 707                 unregister_netdev(nesdev->netdev[nesdev->netdev_count]);
 708                 nes_netdev_destroy(nesdev->netdev[nesdev->netdev_count]);
 709         }
 710
 711         nes_debug(NES_DBG_INIT, "netdev_count=%d, nesadapter->netdev_count=%d\n",
 712                         nesdev->netdev_count, nesdev->nesadapter->netdev_count);
 713
 714         nes_notifiers_registered--;
 715         if (nes_notifiers_registered == 0) {
 716                 unregister_netevent_notifier(&nes_net_notifier);
 717                 unregister_inetaddr_notifier(&nes_inetaddr_notifier);
 718         }
 719
 720         list_del(&nesdev->list);
 721         nes_destroy_cqp(nesdev);
 722
 723         bail65:
 724         printk(KERN_ERR PFX "bail65\n");
 725         free_irq(pcidev->irq, nesdev);
 726         if (nesdev->msi_enabled) {
 727                 pci_disable_msi(pcidev);
 728         }
 729         bail6:
 730         printk(KERN_ERR PFX "bail6\n");
 731         tasklet_kill(&nesdev->dpc_tasklet);
 732         /* Deallocate the Adapter Structure */
 733         nes_destroy_adapter(nesdev->nesadapter);
 734
 735         bail5:
 736         printk(KERN_ERR PFX "bail5\n");
 737         iounmap(nesdev->regs);
 738
 739         bail3:
 740         printk(KERN_ERR PFX "bail3\n");
 741         kfree(nesdev);
 742
 743         bail2:
 744         pci_release_regions(pcidev);
 745
 746         bail1:
 747         pci_disable_device(pcidev);
 748
 749         bail0:
 750         return ret;
 751 }
 752
 753
 754 /**
 755  * nes_remove - unload from kernel
 756  */
 757 static void __devexit nes_remove(struct pci_dev *pcidev)
 758 {
 759         struct nes_device *nesdev = pci_get_drvdata(pcidev);
 760         struct net_device *netdev;
 761         int netdev_index = 0;
 762         unsigned long flags;
 763
 764                 if (nesdev->netdev_count) {
 765                         netdev = nesdev->netdev[netdev_index];
 766                         if (netdev) {
 767                                 netif_stop_queue(netdev);
 768                                 unregister_netdev(netdev);
 769                                 nes_netdev_destroy(netdev);
 770
 771                                 nesdev->netdev[netdev_index] = NULL;
 772                                 nesdev->netdev_count--;
 773                                 nesdev->nesadapter->netdev_count--;
 774                         }
 775                 }
 776
 777         nes_notifiers_registered--;
 778         if (nes_notifiers_registered == 0) {
 779                 unregister_netevent_notifier(&nes_net_notifier);
 780                 unregister_inetaddr_notifier(&nes_inetaddr_notifier);
 781         }
 782
 783         list_del(&nesdev->list);
 784         nes_destroy_cqp(nesdev);
 785
 786         free_irq(pcidev->irq, nesdev);
 787         tasklet_kill(&nesdev->dpc_tasklet);
 788
 789         spin_lock_irqsave(&nesdev->nesadapter->phy_lock, flags);
 790         if (nesdev->link_recheck) {
 791                 spin_unlock_irqrestore(&nesdev->nesadapter->phy_lock, flags);
 792                 cancel_delayed_work_sync(&nesdev->work);
 793         } else {
 794                 spin_unlock_irqrestore(&nesdev->nesadapter->phy_lock, flags);
 795         }
 796
 797         /* Deallocate the Adapter Structure */
 798         nes_destroy_adapter(nesdev->nesadapter);
 799
 800         if (nesdev->msi_enabled) {
 801                 pci_disable_msi(pcidev);
 802         }
 803
 804         iounmap(nesdev->regs);
 805         kfree(nesdev);
 806
 807         /* nes_debug(NES_DBG_SHUTDOWN, "calling pci_release_regions.\n"); */
 808         pci_release_regions(pcidev);
 809         pci_disable_device(pcidev);
 810         pci_set_drvdata(pcidev, NULL);
 811 }
 812
 813
 814 static struct pci_driver nes_pci_driver = {
 815         .name = DRV_NAME,
 816         .id_table = nes_pci_table,
 817         .probe = nes_probe,
 818         .remove = __devexit_p(nes_remove),
 819 };
 820
 821 static ssize_t nes_show_adapter(struct device_driver *ddp, char *buf)
 822 {
 823         unsigned int  devfn = 0xffffffff;
 824         unsigned char bus_number = 0xff;
 825         unsigned int  i = 0;
 826         struct nes_device *nesdev;
 827
 828         list_for_each_entry(nesdev, &nes_dev_list, list) {
 829                 if (i == ee_flsh_adapter) {
 830                         devfn = nesdev->pcidev->devfn;
 831                         bus_number = nesdev->pcidev->bus->number;
 832                         break;
 833                 }
 834                 i++;
 835         }
 836
 837         return snprintf(buf, PAGE_SIZE, "%x:%x\n", bus_number, devfn);
 838 }
 839
 840 static ssize_t nes_store_adapter(struct device_driver *ddp,
 841         const char *buf, size_t count)
 842 {
 843         char *p = (char *)buf;
 844
 845         ee_flsh_adapter = simple_strtoul(p, &p, 10);
 846         return strnlen(buf, count);
 847 }
 848
 849 static ssize_t nes_show_ee_cmd(struct device_driver *ddp, char *buf)
 850 {
 851         u32 eeprom_cmd = 0xdead;
 852         u32 i = 0;
 853         struct nes_device *nesdev;
 854
 855         list_for_each_entry(nesdev, &nes_dev_list, list) {
 856                 if (i == ee_flsh_adapter) {
 857                         eeprom_cmd = nes_read32(nesdev->regs + NES_EEPROM_COMMAND);
 858                         break;
 859                 }
 860                 i++;
 861         }
 862         return snprintf(buf, PAGE_SIZE, "0x%x\n", eeprom_cmd);
 863 }
 864
 865 static ssize_t nes_store_ee_cmd(struct device_driver *ddp,
 866         const char *buf, size_t count)
 867 {
 868         char *p = (char *)buf;
 869         u32 val;
 870         u32 i = 0;
 871         struct nes_device *nesdev;
 872
 873         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
 874                 val = simple_strtoul(p, &p, 16);
 875                 list_for_each_entry(nesdev, &nes_dev_list, list) {
 876                         if (i == ee_flsh_adapter) {
 877                                 nes_write32(nesdev->regs + NES_EEPROM_COMMAND, val);
 878                                 break;
 879                         }
 880                         i++;
 881                 }
 882         }
 883         return strnlen(buf, count);
 884 }
 885
 886 static ssize_t nes_show_ee_data(struct device_driver *ddp, char *buf)
 887 {
 888         u32 eeprom_data = 0xdead;
 889         u32 i = 0;
 890         struct nes_device *nesdev;
 891
 892         list_for_each_entry(nesdev, &nes_dev_list, list) {
 893                 if (i == ee_flsh_adapter) {
 894                         eeprom_data = nes_read32(nesdev->regs + NES_EEPROM_DATA);
 895                         break;
 896                 }
 897                 i++;
 898         }
 899
 900         return  snprintf(buf, PAGE_SIZE, "0x%x\n", eeprom_data);
 901 }
 902
 903 static ssize_t nes_store_ee_data(struct device_driver *ddp,
 904         const char *buf, size_t count)
 905 {
 906         char *p = (char *)buf;
 907         u32 val;
 908         u32 i = 0;
 909         struct nes_device *nesdev;
 910
 911         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
 912                 val = simple_strtoul(p, &p, 16);
 913                 list_for_each_entry(nesdev, &nes_dev_list, list) {
 914                         if (i == ee_flsh_adapter) {
 915                                 nes_write32(nesdev->regs + NES_EEPROM_DATA, val);
 916                                 break;
 917                         }
 918                         i++;
 919                 }
 920         }
 921         return strnlen(buf, count);
 922 }
 923
 924 static ssize_t nes_show_flash_cmd(struct device_driver *ddp, char *buf)
 925 {
 926         u32 flash_cmd = 0xdead;
 927         u32 i = 0;
 928         struct nes_device *nesdev;
 929
 930         list_for_each_entry(nesdev, &nes_dev_list, list) {
 931                 if (i == ee_flsh_adapter) {
 932                         flash_cmd = nes_read32(nesdev->regs + NES_FLASH_COMMAND);
 933                         break;
 934                 }
 935                 i++;
 936         }
 937
 938         return  snprintf(buf, PAGE_SIZE, "0x%x\n", flash_cmd);
 939 }
 940
 941 static ssize_t nes_store_flash_cmd(struct device_driver *ddp,
 942         const char *buf, size_t count)
 943 {
 944         char *p = (char *)buf;
 945         u32 val;
 946         u32 i = 0;
 947         struct nes_device *nesdev;
 948
 949         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
 950                 val = simple_strtoul(p, &p, 16);
 951                 list_for_each_entry(nesdev, &nes_dev_list, list) {
 952                         if (i == ee_flsh_adapter) {
 953                                 nes_write32(nesdev->regs + NES_FLASH_COMMAND, val);
 954                                 break;
 955                         }
 956                         i++;
 957                 }
 958         }
 959         return strnlen(buf, count);
 960 }
 961
 962 static ssize_t nes_show_flash_data(struct device_driver *ddp, char *buf)
 963 {
 964         u32 flash_data = 0xdead;
 965         u32 i = 0;
 966         struct nes_device *nesdev;
 967
 968         list_for_each_entry(nesdev, &nes_dev_list, list) {
 969                 if (i == ee_flsh_adapter) {
 970                         flash_data = nes_read32(nesdev->regs + NES_FLASH_DATA);
 971                         break;
 972                 }
 973                 i++;
 974         }
 975
 976         return  snprintf(buf, PAGE_SIZE, "0x%x\n", flash_data);
 977 }
 978
 979 static ssize_t nes_store_flash_data(struct device_driver *ddp,
 980         const char *buf, size_t count)
 981 {
 982         char *p = (char *)buf;
 983         u32 val;
 984         u32 i = 0;
 985         struct nes_device *nesdev;
 986
 987         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
 988                 val = simple_strtoul(p, &p, 16);
 989                 list_for_each_entry(nesdev, &nes_dev_list, list) {
 990                         if (i == ee_flsh_adapter) {
 991                                 nes_write32(nesdev->regs + NES_FLASH_DATA, val);
 992                                 break;
 993                         }
 994                         i++;
 995                 }
 996         }
 997         return strnlen(buf, count);
 998 }
 999
1000 static ssize_t nes_show_nonidx_addr(struct device_driver *ddp, char *buf)
1001 {
1002         return  snprintf(buf, PAGE_SIZE, "0x%x\n", sysfs_nonidx_addr);
1003 }
1004
1005 static ssize_t nes_store_nonidx_addr(struct device_driver *ddp,
1006         const char *buf, size_t count)
1007 {
1008         char *p = (char *)buf;
1009
1010         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X')
1011                 sysfs_nonidx_addr = simple_strtoul(p, &p, 16);
1012
1013         return strnlen(buf, count);
1014 }
1015
1016 static ssize_t nes_show_nonidx_data(struct device_driver *ddp, char *buf)
1017 {
1018         u32 nonidx_data = 0xdead;
1019         u32 i = 0;
1020         struct nes_device *nesdev;
1021
1022         list_for_each_entry(nesdev, &nes_dev_list, list) {
1023                 if (i == ee_flsh_adapter) {
1024                         nonidx_data = nes_read32(nesdev->regs + sysfs_nonidx_addr);
1025                         break;
1026                 }
1027                 i++;
1028         }
1029
1030         return  snprintf(buf, PAGE_SIZE, "0x%x\n", nonidx_data);
1031 }
1032
1033 static ssize_t nes_store_nonidx_data(struct device_driver *ddp,
1034         const char *buf, size_t count)
1035 {
1036         char *p = (char *)buf;
1037         u32 val;
1038         u32 i = 0;
1039         struct nes_device *nesdev;
1040
1041         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
1042                 val = simple_strtoul(p, &p, 16);
1043                 list_for_each_entry(nesdev, &nes_dev_list, list) {
1044                         if (i == ee_flsh_adapter) {
1045                                 nes_write32(nesdev->regs + sysfs_nonidx_addr, val);
1046                                 break;
1047                         }
1048                         i++;
1049                 }
1050         }
1051         return strnlen(buf, count);
1052 }
1053
1054 static ssize_t nes_show_idx_addr(struct device_driver *ddp, char *buf)
1055 {
1056         return  snprintf(buf, PAGE_SIZE, "0x%x\n", sysfs_idx_addr);
1057 }
1058
1059 static ssize_t nes_store_idx_addr(struct device_driver *ddp,
1060         const char *buf, size_t count)
1061 {
1062         char *p = (char *)buf;
1063
1064         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X')
1065                 sysfs_idx_addr = simple_strtoul(p, &p, 16);
1066
1067         return strnlen(buf, count);
1068 }
1069
1070 static ssize_t nes_show_idx_data(struct device_driver *ddp, char *buf)
1071 {
1072         u32 idx_data = 0xdead;
1073         u32 i = 0;
1074         struct nes_device *nesdev;
1075
1076         list_for_each_entry(nesdev, &nes_dev_list, list) {
1077                 if (i == ee_flsh_adapter) {
1078                         idx_data = nes_read_indexed(nesdev, sysfs_idx_addr);
1079                         break;
1080                 }
1081                 i++;
1082         }
1083
1084         return  snprintf(buf, PAGE_SIZE, "0x%x\n", idx_data);
1085 }
1086
1087 static ssize_t nes_store_idx_data(struct device_driver *ddp,
1088         const char *buf, size_t count)
1089 {
1090         char *p = (char *)buf;
1091         u32 val;
1092         u32 i = 0;
1093         struct nes_device *nesdev;
1094
1095         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
1096                 val = simple_strtoul(p, &p, 16);
1097                 list_for_each_entry(nesdev, &nes_dev_list, list) {
1098                         if (i == ee_flsh_adapter) {
1099                                 nes_write_indexed(nesdev, sysfs_idx_addr, val);
1100                                 break;
1101                         }
1102                         i++;
1103                 }
1104         }
1105         return strnlen(buf, count);
1106 }
1107
1108
1109 /**
1110  * nes_show_wqm_quanta
1111  */
1112 static ssize_t nes_show_wqm_quanta(struct device_driver *ddp, char *buf)
1113 {
1114         u32 wqm_quanta_value = 0xdead;
1115         u32 i = 0;
1116         struct nes_device *nesdev;
1117
1118         list_for_each_entry(nesdev, &nes_dev_list, list) {
1119                 if (i == ee_flsh_adapter) {
1120                         wqm_quanta_value = nesdev->nesadapter->wqm_quanta;
1121                         break;
1122                 }
1123                 i++;
1124         }
1125
1126         return  snprintf(buf, PAGE_SIZE, "0x%X\n", wqm_quanta_value);
1127 }
1128
1129
1130 /**
1131  * nes_store_wqm_quanta
1132  */
1133 static ssize_t nes_store_wqm_quanta(struct device_driver *ddp,
1134                                         const char *buf, size_t count)
1135 {
1136         unsigned long wqm_quanta_value;
1137         u32 wqm_config1;
1138         u32 i = 0;
1139         struct nes_device *nesdev;
1140
1141         strict_strtoul(buf, 0, &wqm_quanta_value);
1142         list_for_each_entry(nesdev, &nes_dev_list, list) {
1143                 if (i == ee_flsh_adapter) {
1144                         nesdev->nesadapter->wqm_quanta = wqm_quanta_value;
1145                         wqm_config1 = nes_read_indexed(nesdev,
1146                                                 NES_IDX_WQM_CONFIG1);
1147                         nes_write_indexed(nesdev, NES_IDX_WQM_CONFIG1,
1148                                         ((wqm_quanta_value << 1) |
1149                                         (wqm_config1 & 0x00000001)));
1150                         break;
1151                 }
1152                 i++;
1153         }
1154         return strnlen(buf, count);
1155 }
1156
1157 static DRIVER_ATTR(adapter, S_IRUSR | S_IWUSR,
1158                    nes_show_adapter, nes_store_adapter);
1159 static DRIVER_ATTR(eeprom_cmd, S_IRUSR | S_IWUSR,
1160                    nes_show_ee_cmd, nes_store_ee_cmd);
1161 static DRIVER_ATTR(eeprom_data, S_IRUSR | S_IWUSR,
1162                    nes_show_ee_data, nes_store_ee_data);
1163 static DRIVER_ATTR(flash_cmd, S_IRUSR | S_IWUSR,
1164                    nes_show_flash_cmd, nes_store_flash_cmd);
1165 static DRIVER_ATTR(flash_data, S_IRUSR | S_IWUSR,
1166                    nes_show_flash_data, nes_store_flash_data);
1167 static DRIVER_ATTR(nonidx_addr, S_IRUSR | S_IWUSR,
1168                    nes_show_nonidx_addr, nes_store_nonidx_addr);
1169 static DRIVER_ATTR(nonidx_data, S_IRUSR | S_IWUSR,
1170                    nes_show_nonidx_data, nes_store_nonidx_data);
1171 static DRIVER_ATTR(idx_addr, S_IRUSR | S_IWUSR,
1172                    nes_show_idx_addr, nes_store_idx_addr);
1173 static DRIVER_ATTR(idx_data, S_IRUSR | S_IWUSR,
1174                    nes_show_idx_data, nes_store_idx_data);
1175 static DRIVER_ATTR(wqm_quanta, S_IRUSR | S_IWUSR,
1176                    nes_show_wqm_quanta, nes_store_wqm_quanta);
1177
1178 static int nes_create_driver_sysfs(struct pci_driver *drv)
1179 {
1180         int error;
1181         error  = driver_create_file(&drv->driver, &driver_attr_adapter);
1182         error |= driver_create_file(&drv->driver, &driver_attr_eeprom_cmd);
1183         error |= driver_create_file(&drv->driver, &driver_attr_eeprom_data);
1184         error |= driver_create_file(&drv->driver, &driver_attr_flash_cmd);
1185         error |= driver_create_file(&drv->driver, &driver_attr_flash_data);
1186         error |= driver_create_file(&drv->driver, &driver_attr_nonidx_addr);
1187         error |= driver_create_file(&drv->driver, &driver_attr_nonidx_data);
1188         error |= driver_create_file(&drv->driver, &driver_attr_idx_addr);
1189         error |= driver_create_file(&drv->driver, &driver_attr_idx_data);
1190         error |= driver_create_file(&drv->driver, &driver_attr_wqm_quanta);
1191         return error;
1192 }
1193
1194 static void nes_remove_driver_sysfs(struct pci_driver *drv)
1195 {
1196         driver_remove_file(&drv->driver, &driver_attr_adapter);
1197         driver_remove_file(&drv->driver, &driver_attr_eeprom_cmd);
1198         driver_remove_file(&drv->driver, &driver_attr_eeprom_data);
1199         driver_remove_file(&drv->driver, &driver_attr_flash_cmd);
1200         driver_remove_file(&drv->driver, &driver_attr_flash_data);
1201         driver_remove_file(&drv->driver, &driver_attr_nonidx_addr);
1202         driver_remove_file(&drv->driver, &driver_attr_nonidx_data);
1203         driver_remove_file(&drv->driver, &driver_attr_idx_addr);
1204         driver_remove_file(&drv->driver, &driver_attr_idx_data);
1205         driver_remove_file(&drv->driver, &driver_attr_wqm_quanta);
1206 }
1207
1208 /**
1209  * nes_init_module - module initialization entry point
1210  */
1211 static int __init nes_init_module(void)
1212 {
1213         int retval;
1214         int retval1;
1215
1216         retval = nes_cm_start();
1217         if (retval) {
1218                 printk(KERN_ERR PFX "Unable to start NetEffect iWARP CM.\n");
1219                 return retval;
1220         }
1221         retval = pci_register_driver(&nes_pci_driver);
1222         if (retval >= 0) {
1223                 retval1 = nes_create_driver_sysfs(&nes_pci_driver);
1224                 if (retval1 < 0)
1225                         printk(KERN_ERR PFX "Unable to create NetEffect sys files.\n");
1226         }
1227         return retval;
1228 }
1229
1230
1231 /**
1232  * nes_exit_module - module unload entry point
1233  */
1234 static void __exit nes_exit_module(void)
1235 {
1236         nes_cm_stop();
1237         nes_remove_driver_sysfs(&nes_pci_driver);
1238
1239         pci_unregister_driver(&nes_pci_driver);
1240 }
1241
1242
1243 module_init(nes_init_module);
1244 module_exit(nes_exit_module);