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   1 /*
   2  * Copyright (c) 2006 - 2008 NetEffect, Inc. 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 LIST_HEAD(nes_adapter_list);
  99 static LIST_HEAD(nes_dev_list);
 100
 101 atomic_t qps_destroyed;
 102
 103 static unsigned int ee_flsh_adapter;
 104 static unsigned int sysfs_nonidx_addr;
 105 static unsigned int sysfs_idx_addr;
 106
 107 static struct pci_device_id nes_pci_table[] = {
 108         {PCI_VENDOR_ID_NETEFFECT, PCI_DEVICE_ID_NETEFFECT_NE020, PCI_ANY_ID, PCI_ANY_ID},
 109         {0}
 110 };
 111
 112 MODULE_DEVICE_TABLE(pci, nes_pci_table);
 113
 114 static int nes_inetaddr_event(struct notifier_block *, unsigned long, void *);
 115 static int nes_net_event(struct notifier_block *, unsigned long, void *);
 116 static int nes_notifiers_registered;
 117
 118
 119 static struct notifier_block nes_inetaddr_notifier = {
 120         .notifier_call = nes_inetaddr_event
 121 };
 122
 123 static struct notifier_block nes_net_notifier = {
 124         .notifier_call = nes_net_event
 125 };
 126
 127
 128
 129
 130 /**
 131  * nes_inetaddr_event
 132  */
 133 static int nes_inetaddr_event(struct notifier_block *notifier,
 134                 unsigned long event, void *ptr)
 135 {
 136         struct in_ifaddr *ifa = ptr;
 137         struct net_device *event_netdev = ifa->ifa_dev->dev;
 138         struct nes_device *nesdev;
 139         struct net_device *netdev;
 140         struct nes_vnic *nesvnic;
 141
 142         nes_debug(NES_DBG_NETDEV, "nes_inetaddr_event: ip address %pI4, netmask %pI4.\n",
 143                   &ifa->ifa_address, &ifa->ifa_mask);
 144         list_for_each_entry(nesdev, &nes_dev_list, list) {
 145                 nes_debug(NES_DBG_NETDEV, "Nesdev list entry = 0x%p. (%s)\n",
 146                                 nesdev, nesdev->netdev[0]->name);
 147                 netdev = nesdev->netdev[0];
 148                 nesvnic = netdev_priv(netdev);
 149                 if (netdev == event_netdev) {
 150                         if (nesvnic->rdma_enabled == 0) {
 151                                 nes_debug(NES_DBG_NETDEV, "Returning without processing event for %s since"
 152                                                 " RDMA is not enabled.\n",
 153                                                 netdev->name);
 154                                 return NOTIFY_OK;
 155                         }
 156                         /* we have ifa->ifa_address/mask here if we need it */
 157                         switch (event) {
 158                                 case NETDEV_DOWN:
 159                                         nes_debug(NES_DBG_NETDEV, "event:DOWN\n");
 160                                         nes_write_indexed(nesdev,
 161                                                         NES_IDX_DST_IP_ADDR+(0x10*PCI_FUNC(nesdev->pcidev->devfn)), 0);
 162
 163                                         nes_manage_arp_cache(netdev, netdev->dev_addr,
 164                                                         ntohl(nesvnic->local_ipaddr), NES_ARP_DELETE);
 165                                         nesvnic->local_ipaddr = 0;
 166                                         return NOTIFY_OK;
 167                                         break;
 168                                 case NETDEV_UP:
 169                                         nes_debug(NES_DBG_NETDEV, "event:UP\n");
 170
 171                                         if (nesvnic->local_ipaddr != 0) {
 172                                                 nes_debug(NES_DBG_NETDEV, "Interface already has local_ipaddr\n");
 173                                                 return NOTIFY_OK;
 174                                         }
 175                                         /* Add the address to the IP table */
 176                                         nesvnic->local_ipaddr = ifa->ifa_address;
 177
 178                                         nes_write_indexed(nesdev,
 179                                                         NES_IDX_DST_IP_ADDR+(0x10*PCI_FUNC(nesdev->pcidev->devfn)),
 180                                                         ntohl(ifa->ifa_address));
 181                                         nes_manage_arp_cache(netdev, netdev->dev_addr,
 182                                                         ntohl(nesvnic->local_ipaddr), NES_ARP_ADD);
 183                                         return NOTIFY_OK;
 184                                         break;
 185                                 default:
 186                                         break;
 187                         }
 188                 }
 189         }
 190
 191         return NOTIFY_DONE;
 192 }
 193
 194
 195 /**
 196  * nes_net_event
 197  */
 198 static int nes_net_event(struct notifier_block *notifier,
 199                 unsigned long event, void *ptr)
 200 {
 201         struct neighbour *neigh = ptr;
 202         struct nes_device *nesdev;
 203         struct net_device *netdev;
 204         struct nes_vnic *nesvnic;
 205
 206         switch (event) {
 207                 case NETEVENT_NEIGH_UPDATE:
 208                         list_for_each_entry(nesdev, &nes_dev_list, list) {
 209                                 /* nes_debug(NES_DBG_NETDEV, "Nesdev list entry = 0x%p.\n", nesdev); */
 210                                 netdev = nesdev->netdev[0];
 211                                 nesvnic = netdev_priv(netdev);
 212                                 if (netdev == neigh->dev) {
 213                                         if (nesvnic->rdma_enabled == 0) {
 214                                                 nes_debug(NES_DBG_NETDEV, "Skipping device %s since no RDMA\n",
 215                                                                 netdev->name);
 216                                         } else {
 217                                                 if (neigh->nud_state & NUD_VALID) {
 218                                                         nes_manage_arp_cache(neigh->dev, neigh->ha,
 219                                                                         ntohl(*(__be32 *)neigh->primary_key), NES_ARP_ADD);
 220                                                 } else {
 221                                                         nes_manage_arp_cache(neigh->dev, neigh->ha,
 222                                                                         ntohl(*(__be32 *)neigh->primary_key), NES_ARP_DELETE);
 223                                                 }
 224                                         }
 225                                         return NOTIFY_OK;
 226                                 }
 227                         }
 228                         break;
 229                 default:
 230                         nes_debug(NES_DBG_NETDEV, "NETEVENT_ %lu undefined\n", event);
 231                         break;
 232         }
 233
 234         return NOTIFY_DONE;
 235 }
 236
 237
 238 /**
 239  * nes_add_ref
 240  */
 241 void nes_add_ref(struct ib_qp *ibqp)
 242 {
 243         struct nes_qp *nesqp;
 244
 245         nesqp = to_nesqp(ibqp);
 246         nes_debug(NES_DBG_QP, "Bumping refcount for QP%u.  Pre-inc value = %u\n",
 247                         ibqp->qp_num, atomic_read(&nesqp->refcount));
 248         atomic_inc(&nesqp->refcount);
 249 }
 250
 251 static void nes_cqp_rem_ref_callback(struct nes_device *nesdev, struct nes_cqp_request *cqp_request)
 252 {
 253         unsigned long flags;
 254         struct nes_qp *nesqp = cqp_request->cqp_callback_pointer;
 255         struct nes_adapter *nesadapter = nesdev->nesadapter;
 256         u32 qp_id;
 257
 258         atomic_inc(&qps_destroyed);
 259
 260         /* Free the control structures */
 261
 262         qp_id = nesqp->hwqp.qp_id;
 263         if (nesqp->pbl_vbase) {
 264                 pci_free_consistent(nesdev->pcidev, nesqp->qp_mem_size,
 265                                 nesqp->hwqp.q2_vbase, nesqp->hwqp.q2_pbase);
 266                 spin_lock_irqsave(&nesadapter->pbl_lock, flags);
 267                 nesadapter->free_256pbl++;
 268                 spin_unlock_irqrestore(&nesadapter->pbl_lock, flags);
 269                 pci_free_consistent(nesdev->pcidev, 256, nesqp->pbl_vbase, nesqp->pbl_pbase);
 270                 nesqp->pbl_vbase = NULL;
 271
 272         } else {
 273                 pci_free_consistent(nesdev->pcidev, nesqp->qp_mem_size,
 274                                 nesqp->hwqp.sq_vbase, nesqp->hwqp.sq_pbase);
 275         }
 276         nes_free_resource(nesadapter, nesadapter->allocated_qps, nesqp->hwqp.qp_id);
 277
 278         nesadapter->qp_table[nesqp->hwqp.qp_id-NES_FIRST_QPN] = NULL;
 279         kfree(nesqp->allocated_buffer);
 280
 281 }
 282
 283 /**
 284  * nes_rem_ref
 285  */
 286 void nes_rem_ref(struct ib_qp *ibqp)
 287 {
 288         u64 u64temp;
 289         struct nes_qp *nesqp;
 290         struct nes_vnic *nesvnic = to_nesvnic(ibqp->device);
 291         struct nes_device *nesdev = nesvnic->nesdev;
 292         struct nes_hw_cqp_wqe *cqp_wqe;
 293         struct nes_cqp_request *cqp_request;
 294         u32 opcode;
 295
 296         nesqp = to_nesqp(ibqp);
 297
 298         if (atomic_read(&nesqp->refcount) == 0) {
 299                 printk(KERN_INFO PFX "%s: Reference count already 0 for QP%d, last aeq = 0x%04X.\n",
 300                                 __func__, ibqp->qp_num, nesqp->last_aeq);
 301                 BUG();
 302         }
 303
 304         if (atomic_dec_and_test(&nesqp->refcount)) {
 305                 /* Destroy the QP */
 306                 cqp_request = nes_get_cqp_request(nesdev);
 307                 if (cqp_request == NULL) {
 308                         nes_debug(NES_DBG_QP, "Failed to get a cqp_request.\n");
 309                         return;
 310                 }
 311                 cqp_request->waiting = 0;
 312                 cqp_request->callback = 1;
 313                 cqp_request->cqp_callback = nes_cqp_rem_ref_callback;
 314                 cqp_request->cqp_callback_pointer = nesqp;
 315                 cqp_wqe = &cqp_request->cqp_wqe;
 316
 317                 nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
 318                 opcode = NES_CQP_DESTROY_QP | NES_CQP_QP_TYPE_IWARP;
 319
 320                 if (nesqp->hte_added) {
 321                         opcode  |= NES_CQP_QP_DEL_HTE;
 322                         nesqp->hte_added = 0;
 323                 }
 324                 set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, opcode);
 325                 set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX, nesqp->hwqp.qp_id);
 326                 u64temp = (u64)nesqp->nesqp_context_pbase;
 327                 set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_QP_WQE_CONTEXT_LOW_IDX, u64temp);
 328                 nes_post_cqp_request(nesdev, cqp_request);
 329         }
 330 }
 331
 332
 333 /**
 334  * nes_get_qp
 335  */
 336 struct ib_qp *nes_get_qp(struct ib_device *device, int qpn)
 337 {
 338         struct nes_vnic *nesvnic = to_nesvnic(device);
 339         struct nes_device *nesdev = nesvnic->nesdev;
 340         struct nes_adapter *nesadapter = nesdev->nesadapter;
 341
 342         if ((qpn < NES_FIRST_QPN) || (qpn >= (NES_FIRST_QPN + nesadapter->max_qp)))
 343                 return NULL;
 344
 345         return &nesadapter->qp_table[qpn - NES_FIRST_QPN]->ibqp;
 346 }
 347
 348
 349 /**
 350  * nes_print_macaddr
 351  */
 352 static void nes_print_macaddr(struct net_device *netdev)
 353 {
 354         nes_debug(NES_DBG_INIT, "%s: %pM, IRQ %u\n",
 355                   netdev->name, netdev->dev_addr, netdev->irq);
 356 }
 357
 358 /**
 359  * nes_interrupt - handle interrupts
 360  */
 361 static irqreturn_t nes_interrupt(int irq, void *dev_id)
 362 {
 363         struct nes_device *nesdev = (struct nes_device *)dev_id;
 364         int handled = 0;
 365         u32 int_mask;
 366         u32 int_req;
 367         u32 int_stat;
 368         u32 intf_int_stat;
 369         u32 timer_stat;
 370
 371         if (nesdev->msi_enabled) {
 372                 /* No need to read the interrupt pending register if msi is enabled */
 373                 handled = 1;
 374         } else {
 375                 if (unlikely(nesdev->nesadapter->hw_rev == NE020_REV)) {
 376                         /* Master interrupt enable provides synchronization for kicking off bottom half
 377                           when interrupt sharing is going on */
 378                         int_mask = nes_read32(nesdev->regs + NES_INT_MASK);
 379                         if (int_mask & 0x80000000) {
 380                                 /* Check interrupt status to see if this might be ours */
 381                                 int_stat = nes_read32(nesdev->regs + NES_INT_STAT);
 382                                 int_req = nesdev->int_req;
 383                                 if (int_stat&int_req) {
 384                                         /* if interesting CEQ or AEQ is pending, claim the interrupt */
 385                                         if ((int_stat&int_req) & (~(NES_INT_TIMER|NES_INT_INTF))) {
 386                                                 handled = 1;
 387                                         } else {
 388                                                 if (((int_stat & int_req) & NES_INT_TIMER) == NES_INT_TIMER) {
 389                                                         /* Timer might be running but might be for another function */
 390                                                         timer_stat = nes_read32(nesdev->regs + NES_TIMER_STAT);
 391                                                         if ((timer_stat & nesdev->timer_int_req) != 0) {
 392                                                                 handled = 1;
 393                                                         }
 394                                                 }
 395                                                 if ((((int_stat & int_req) & NES_INT_INTF) == NES_INT_INTF) &&
 396                                                                 (handled == 0)) {
 397                                                         intf_int_stat = nes_read32(nesdev->regs+NES_INTF_INT_STAT);
 398                                                         if ((intf_int_stat & nesdev->intf_int_req) != 0) {
 399                                                                 handled = 1;
 400                                                         }
 401                                                 }
 402                                         }
 403                                         if (handled) {
 404                                                 nes_write32(nesdev->regs+NES_INT_MASK, int_mask & (~0x80000000));
 405                                                 int_mask = nes_read32(nesdev->regs+NES_INT_MASK);
 406                                                 /* Save off the status to save an additional read */
 407                                                 nesdev->int_stat = int_stat;
 408                                                 nesdev->napi_isr_ran = 1;
 409                                         }
 410                                 }
 411                         }
 412                 } else {
 413                         handled = nes_read32(nesdev->regs+NES_INT_PENDING);
 414                 }
 415         }
 416
 417         if (handled) {
 418
 419                 if (nes_napi_isr(nesdev) == 0) {
 420                         tasklet_schedule(&nesdev->dpc_tasklet);
 421
 422                 }
 423                 return IRQ_HANDLED;
 424         } else {
 425                 return IRQ_NONE;
 426         }
 427 }
 428
 429
 430 /**
 431  * nes_probe - Device initialization
 432  */
 433 static int __devinit nes_probe(struct pci_dev *pcidev, const struct pci_device_id *ent)
 434 {
 435         struct net_device *netdev = NULL;
 436         struct nes_device *nesdev = NULL;
 437         int ret = 0;
 438         struct nes_vnic *nesvnic = NULL;
 439         void __iomem *mmio_regs = NULL;
 440         u8 hw_rev;
 441
 442         assert(pcidev != NULL);
 443         assert(ent != NULL);
 444
 445         printk(KERN_INFO PFX "NetEffect RNIC driver v%s loading. (%s)\n",
 446                         DRV_VERSION, pci_name(pcidev));
 447
 448         ret = pci_enable_device(pcidev);
 449         if (ret) {
 450                 printk(KERN_ERR PFX "Unable to enable PCI device. (%s)\n", pci_name(pcidev));
 451                 goto bail0;
 452         }
 453
 454         nes_debug(NES_DBG_INIT, "BAR0 (@0x%08lX) size = 0x%lX bytes\n",
 455                         (long unsigned int)pci_resource_start(pcidev, BAR_0),
 456                         (long unsigned int)pci_resource_len(pcidev, BAR_0));
 457         nes_debug(NES_DBG_INIT, "BAR1 (@0x%08lX) size = 0x%lX bytes\n",
 458                         (long unsigned int)pci_resource_start(pcidev, BAR_1),
 459                         (long unsigned int)pci_resource_len(pcidev, BAR_1));
 460
 461         /* Make sure PCI base addr are MMIO */
 462         if (!(pci_resource_flags(pcidev, BAR_0) & IORESOURCE_MEM) ||
 463                         !(pci_resource_flags(pcidev, BAR_1) & IORESOURCE_MEM)) {
 464                 printk(KERN_ERR PFX "PCI regions not an MMIO resource\n");
 465                 ret = -ENODEV;
 466                 goto bail1;
 467         }
 468
 469         /* Reserve PCI I/O and memory resources */
 470         ret = pci_request_regions(pcidev, DRV_NAME);
 471         if (ret) {
 472                 printk(KERN_ERR PFX "Unable to request regions. (%s)\n", pci_name(pcidev));
 473                 goto bail1;
 474         }
 475
 476         if ((sizeof(dma_addr_t) > 4)) {
 477                 ret = pci_set_dma_mask(pcidev, DMA_64BIT_MASK);
 478                 if (ret < 0) {
 479                         printk(KERN_ERR PFX "64b DMA mask configuration failed\n");
 480                         goto bail2;
 481                 }
 482                 ret = pci_set_consistent_dma_mask(pcidev, DMA_64BIT_MASK);
 483                 if (ret) {
 484                         printk(KERN_ERR PFX "64b DMA consistent mask configuration failed\n");
 485                         goto bail2;
 486                 }
 487         } else {
 488                 ret = pci_set_dma_mask(pcidev, DMA_32BIT_MASK);
 489                 if (ret < 0) {
 490                         printk(KERN_ERR PFX "32b DMA mask configuration failed\n");
 491                         goto bail2;
 492                 }
 493                 ret = pci_set_consistent_dma_mask(pcidev, DMA_32BIT_MASK);
 494                 if (ret) {
 495                         printk(KERN_ERR PFX "32b DMA consistent mask configuration failed\n");
 496                         goto bail2;
 497                 }
 498         }
 499
 500         pci_set_master(pcidev);
 501
 502         /* Allocate hardware structure */
 503         nesdev = kzalloc(sizeof(struct nes_device), GFP_KERNEL);
 504         if (!nesdev) {
 505                 printk(KERN_ERR PFX "%s: Unable to alloc hardware struct\n", pci_name(pcidev));
 506                 ret = -ENOMEM;
 507                 goto bail2;
 508         }
 509
 510         nes_debug(NES_DBG_INIT, "Allocated nes device at %p\n", nesdev);
 511         nesdev->pcidev = pcidev;
 512         pci_set_drvdata(pcidev, nesdev);
 513
 514         pci_read_config_byte(pcidev, 0x0008, &hw_rev);
 515         nes_debug(NES_DBG_INIT, "hw_rev=%u\n", hw_rev);
 516
 517         spin_lock_init(&nesdev->indexed_regs_lock);
 518
 519         /* Remap the PCI registers in adapter BAR0 to kernel VA space */
 520         mmio_regs = ioremap_nocache(pci_resource_start(pcidev, BAR_0), sizeof(mmio_regs));
 521         if (mmio_regs == NULL) {
 522                 printk(KERN_ERR PFX "Unable to remap BAR0\n");
 523                 ret = -EIO;
 524                 goto bail3;
 525         }
 526         nesdev->regs = mmio_regs;
 527         nesdev->index_reg = 0x50 + (PCI_FUNC(pcidev->devfn)*8) + mmio_regs;
 528
 529         /* Ensure interrupts are disabled */
 530         nes_write32(nesdev->regs+NES_INT_MASK, 0x7fffffff);
 531
 532         if (nes_drv_opt & NES_DRV_OPT_ENABLE_MSI) {
 533                 if (!pci_enable_msi(nesdev->pcidev)) {
 534                         nesdev->msi_enabled = 1;
 535                         nes_debug(NES_DBG_INIT, "MSI is enabled for device %s\n",
 536                                         pci_name(pcidev));
 537                 } else {
 538                         nes_debug(NES_DBG_INIT, "MSI is disabled by linux for device %s\n",
 539                                         pci_name(pcidev));
 540                 }
 541         } else {
 542                 nes_debug(NES_DBG_INIT, "MSI not requested due to driver options for device %s\n",
 543                                 pci_name(pcidev));
 544         }
 545
 546         nesdev->csr_start = pci_resource_start(nesdev->pcidev, BAR_0);
 547         nesdev->doorbell_region = pci_resource_start(nesdev->pcidev, BAR_1);
 548
 549         /* Init the adapter */
 550         nesdev->nesadapter = nes_init_adapter(nesdev, hw_rev);
 551         if (!nesdev->nesadapter) {
 552                 printk(KERN_ERR PFX "Unable to initialize adapter.\n");
 553                 ret = -ENOMEM;
 554                 goto bail5;
 555         }
 556         nesdev->nesadapter->et_rx_coalesce_usecs_irq = interrupt_mod_interval;
 557         nesdev->nesadapter->wqm_quanta = wqm_quanta;
 558
 559         /* nesdev->base_doorbell_index =
 560                         nesdev->nesadapter->pd_config_base[PCI_FUNC(nesdev->pcidev->devfn)]; */
 561         nesdev->base_doorbell_index = 1;
 562         nesdev->doorbell_start = nesdev->nesadapter->doorbell_start;
 563         if (nesdev->nesadapter->phy_type[0] == NES_PHY_TYPE_PUMA_1G) {
 564                 switch (PCI_FUNC(nesdev->pcidev->devfn) %
 565                         nesdev->nesadapter->port_count) {
 566                 case 1:
 567                         nesdev->mac_index = 2;
 568                         break;
 569                 case 2:
 570                         nesdev->mac_index = 1;
 571                         break;
 572                 case 3:
 573                         nesdev->mac_index = 3;
 574                         break;
 575                 case 0:
 576                 default:
 577                         nesdev->mac_index = 0;
 578                 }
 579         } else {
 580                 nesdev->mac_index = PCI_FUNC(nesdev->pcidev->devfn) %
 581                                                 nesdev->nesadapter->port_count;
 582         }
 583
 584         tasklet_init(&nesdev->dpc_tasklet, nes_dpc, (unsigned long)nesdev);
 585
 586         /* bring up the Control QP */
 587         if (nes_init_cqp(nesdev)) {
 588                 ret = -ENODEV;
 589                 goto bail6;
 590         }
 591
 592         /* Arm the CCQ */
 593         nes_write32(nesdev->regs+NES_CQE_ALLOC, NES_CQE_ALLOC_NOTIFY_NEXT |
 594                         PCI_FUNC(nesdev->pcidev->devfn));
 595         nes_read32(nesdev->regs+NES_CQE_ALLOC);
 596
 597         /* Enable the interrupts */
 598         nesdev->int_req = (0x101 << PCI_FUNC(nesdev->pcidev->devfn)) |
 599                         (1 << (PCI_FUNC(nesdev->pcidev->devfn)+16));
 600         if (PCI_FUNC(nesdev->pcidev->devfn) < 4) {
 601                 nesdev->int_req |= (1 << (PCI_FUNC(nesdev->mac_index)+24));
 602         }
 603
 604         /* TODO: This really should be the first driver to load, not function 0 */
 605         if (PCI_FUNC(nesdev->pcidev->devfn) == 0) {
 606                 /* pick up PCI and critical errors if the first driver to load */
 607                 nesdev->intf_int_req = NES_INTF_INT_PCIERR | NES_INTF_INT_CRITERR;
 608                 nesdev->int_req |= NES_INT_INTF;
 609         } else {
 610                 nesdev->intf_int_req = 0;
 611         }
 612         nesdev->intf_int_req |= (1 << (PCI_FUNC(nesdev->pcidev->devfn)+16));
 613         nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS0, 0);
 614         nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS1, 0);
 615         nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS2, 0x00001265);
 616         nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS4, 0x18021804);
 617
 618         nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS3, 0x17801790);
 619
 620         /* deal with both periodic and one_shot */
 621         nesdev->timer_int_req = 0x101 << PCI_FUNC(nesdev->pcidev->devfn);
 622         nesdev->nesadapter->timer_int_req |= nesdev->timer_int_req;
 623         nes_debug(NES_DBG_INIT, "setting int_req for function %u, nesdev = 0x%04X, adapter = 0x%04X\n",
 624                         PCI_FUNC(nesdev->pcidev->devfn),
 625                         nesdev->timer_int_req, nesdev->nesadapter->timer_int_req);
 626
 627         nes_write32(nesdev->regs+NES_INTF_INT_MASK, ~(nesdev->intf_int_req));
 628
 629         list_add_tail(&nesdev->list, &nes_dev_list);
 630
 631         /* Request an interrupt line for the driver */
 632         ret = request_irq(pcidev->irq, nes_interrupt, IRQF_SHARED, DRV_NAME, nesdev);
 633         if (ret) {
 634                 printk(KERN_ERR PFX "%s: requested IRQ %u is busy\n",
 635                                 pci_name(pcidev), pcidev->irq);
 636                 goto bail65;
 637         }
 638
 639         nes_write32(nesdev->regs+NES_INT_MASK, ~nesdev->int_req);
 640
 641         if (nes_notifiers_registered == 0) {
 642                 register_inetaddr_notifier(&nes_inetaddr_notifier);
 643                 register_netevent_notifier(&nes_net_notifier);
 644         }
 645         nes_notifiers_registered++;
 646
 647         /* Initialize network devices */
 648                 if ((netdev = nes_netdev_init(nesdev, mmio_regs)) == NULL) {
 649                         goto bail7;
 650                 }
 651
 652                 /* Register network device */
 653                 ret = register_netdev(netdev);
 654                 if (ret) {
 655                         printk(KERN_ERR PFX "Unable to register netdev, ret = %d\n", ret);
 656                         nes_netdev_destroy(netdev);
 657                         goto bail7;
 658                 }
 659
 660                 nes_print_macaddr(netdev);
 661                 /* create a CM core for this netdev */
 662                 nesvnic = netdev_priv(netdev);
 663
 664                 nesdev->netdev_count++;
 665                 nesdev->nesadapter->netdev_count++;
 666
 667
 668         printk(KERN_ERR PFX "%s: NetEffect RNIC driver successfully loaded.\n",
 669                         pci_name(pcidev));
 670         return 0;
 671
 672         bail7:
 673         printk(KERN_ERR PFX "bail7\n");
 674         while (nesdev->netdev_count > 0) {
 675                 nesdev->netdev_count--;
 676                 nesdev->nesadapter->netdev_count--;
 677
 678                 unregister_netdev(nesdev->netdev[nesdev->netdev_count]);
 679                 nes_netdev_destroy(nesdev->netdev[nesdev->netdev_count]);
 680         }
 681
 682         nes_debug(NES_DBG_INIT, "netdev_count=%d, nesadapter->netdev_count=%d\n",
 683                         nesdev->netdev_count, nesdev->nesadapter->netdev_count);
 684
 685         nes_notifiers_registered--;
 686         if (nes_notifiers_registered == 0) {
 687                 unregister_netevent_notifier(&nes_net_notifier);
 688                 unregister_inetaddr_notifier(&nes_inetaddr_notifier);
 689         }
 690
 691         list_del(&nesdev->list);
 692         nes_destroy_cqp(nesdev);
 693
 694         bail65:
 695         printk(KERN_ERR PFX "bail65\n");
 696         free_irq(pcidev->irq, nesdev);
 697         if (nesdev->msi_enabled) {
 698                 pci_disable_msi(pcidev);
 699         }
 700         bail6:
 701         printk(KERN_ERR PFX "bail6\n");
 702         tasklet_kill(&nesdev->dpc_tasklet);
 703         /* Deallocate the Adapter Structure */
 704         nes_destroy_adapter(nesdev->nesadapter);
 705
 706         bail5:
 707         printk(KERN_ERR PFX "bail5\n");
 708         iounmap(nesdev->regs);
 709
 710         bail3:
 711         printk(KERN_ERR PFX "bail3\n");
 712         kfree(nesdev);
 713
 714         bail2:
 715         pci_release_regions(pcidev);
 716
 717         bail1:
 718         pci_disable_device(pcidev);
 719
 720         bail0:
 721         return ret;
 722 }
 723
 724
 725 /**
 726  * nes_remove - unload from kernel
 727  */
 728 static void __devexit nes_remove(struct pci_dev *pcidev)
 729 {
 730         struct nes_device *nesdev = pci_get_drvdata(pcidev);
 731         struct net_device *netdev;
 732         int netdev_index = 0;
 733
 734                 if (nesdev->netdev_count) {
 735                         netdev = nesdev->netdev[netdev_index];
 736                         if (netdev) {
 737                                 netif_stop_queue(netdev);
 738                                 unregister_netdev(netdev);
 739                                 nes_netdev_destroy(netdev);
 740
 741                                 nesdev->netdev[netdev_index] = NULL;
 742                                 nesdev->netdev_count--;
 743                                 nesdev->nesadapter->netdev_count--;
 744                         }
 745                 }
 746
 747         nes_notifiers_registered--;
 748         if (nes_notifiers_registered == 0) {
 749                 unregister_netevent_notifier(&nes_net_notifier);
 750                 unregister_inetaddr_notifier(&nes_inetaddr_notifier);
 751         }
 752
 753         list_del(&nesdev->list);
 754         nes_destroy_cqp(nesdev);
 755
 756         free_irq(pcidev->irq, nesdev);
 757         tasklet_kill(&nesdev->dpc_tasklet);
 758
 759         /* Deallocate the Adapter Structure */
 760         nes_destroy_adapter(nesdev->nesadapter);
 761
 762         if (nesdev->msi_enabled) {
 763                 pci_disable_msi(pcidev);
 764         }
 765
 766         iounmap(nesdev->regs);
 767         kfree(nesdev);
 768
 769         /* nes_debug(NES_DBG_SHUTDOWN, "calling pci_release_regions.\n"); */
 770         pci_release_regions(pcidev);
 771         pci_disable_device(pcidev);
 772         pci_set_drvdata(pcidev, NULL);
 773 }
 774
 775
 776 static struct pci_driver nes_pci_driver = {
 777         .name = DRV_NAME,
 778         .id_table = nes_pci_table,
 779         .probe = nes_probe,
 780         .remove = __devexit_p(nes_remove),
 781 };
 782
 783 static ssize_t nes_show_adapter(struct device_driver *ddp, char *buf)
 784 {
 785         unsigned int  devfn = 0xffffffff;
 786         unsigned char bus_number = 0xff;
 787         unsigned int  i = 0;
 788         struct nes_device *nesdev;
 789
 790         list_for_each_entry(nesdev, &nes_dev_list, list) {
 791                 if (i == ee_flsh_adapter) {
 792                         devfn = nesdev->pcidev->devfn;
 793                         bus_number = nesdev->pcidev->bus->number;
 794                         break;
 795                 }
 796                 i++;
 797         }
 798
 799         return snprintf(buf, PAGE_SIZE, "%x:%x\n", bus_number, devfn);
 800 }
 801
 802 static ssize_t nes_store_adapter(struct device_driver *ddp,
 803         const char *buf, size_t count)
 804 {
 805         char *p = (char *)buf;
 806
 807         ee_flsh_adapter = simple_strtoul(p, &p, 10);
 808         return strnlen(buf, count);
 809 }
 810
 811 static ssize_t nes_show_ee_cmd(struct device_driver *ddp, char *buf)
 812 {
 813         u32 eeprom_cmd = 0xdead;
 814         u32 i = 0;
 815         struct nes_device *nesdev;
 816
 817         list_for_each_entry(nesdev, &nes_dev_list, list) {
 818                 if (i == ee_flsh_adapter) {
 819                         eeprom_cmd = nes_read32(nesdev->regs + NES_EEPROM_COMMAND);
 820                         break;
 821                 }
 822                 i++;
 823         }
 824         return snprintf(buf, PAGE_SIZE, "0x%x\n", eeprom_cmd);
 825 }
 826
 827 static ssize_t nes_store_ee_cmd(struct device_driver *ddp,
 828         const char *buf, size_t count)
 829 {
 830         char *p = (char *)buf;
 831         u32 val;
 832         u32 i = 0;
 833         struct nes_device *nesdev;
 834
 835         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
 836                 val = simple_strtoul(p, &p, 16);
 837                 list_for_each_entry(nesdev, &nes_dev_list, list) {
 838                         if (i == ee_flsh_adapter) {
 839                                 nes_write32(nesdev->regs + NES_EEPROM_COMMAND, val);
 840                                 break;
 841                         }
 842                         i++;
 843                 }
 844         }
 845         return strnlen(buf, count);
 846 }
 847
 848 static ssize_t nes_show_ee_data(struct device_driver *ddp, char *buf)
 849 {
 850         u32 eeprom_data = 0xdead;
 851         u32 i = 0;
 852         struct nes_device *nesdev;
 853
 854         list_for_each_entry(nesdev, &nes_dev_list, list) {
 855                 if (i == ee_flsh_adapter) {
 856                         eeprom_data = nes_read32(nesdev->regs + NES_EEPROM_DATA);
 857                         break;
 858                 }
 859                 i++;
 860         }
 861
 862         return  snprintf(buf, PAGE_SIZE, "0x%x\n", eeprom_data);
 863 }
 864
 865 static ssize_t nes_store_ee_data(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_DATA, val);
 878                                 break;
 879                         }
 880                         i++;
 881                 }
 882         }
 883         return strnlen(buf, count);
 884 }
 885
 886 static ssize_t nes_show_flash_cmd(struct device_driver *ddp, char *buf)
 887 {
 888         u32 flash_cmd = 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                         flash_cmd = nes_read32(nesdev->regs + NES_FLASH_COMMAND);
 895                         break;
 896                 }
 897                 i++;
 898         }
 899
 900         return  snprintf(buf, PAGE_SIZE, "0x%x\n", flash_cmd);
 901 }
 902
 903 static ssize_t nes_store_flash_cmd(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_FLASH_COMMAND, val);
 916                                 break;
 917                         }
 918                         i++;
 919                 }
 920         }
 921         return strnlen(buf, count);
 922 }
 923
 924 static ssize_t nes_show_flash_data(struct device_driver *ddp, char *buf)
 925 {
 926         u32 flash_data = 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_data = nes_read32(nesdev->regs + NES_FLASH_DATA);
 933                         break;
 934                 }
 935                 i++;
 936         }
 937
 938         return  snprintf(buf, PAGE_SIZE, "0x%x\n", flash_data);
 939 }
 940
 941 static ssize_t nes_store_flash_data(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_DATA, val);
 954                                 break;
 955                         }
 956                         i++;
 957                 }
 958         }
 959         return strnlen(buf, count);
 960 }
 961
 962 static ssize_t nes_show_nonidx_addr(struct device_driver *ddp, char *buf)
 963 {
 964         return  snprintf(buf, PAGE_SIZE, "0x%x\n", sysfs_nonidx_addr);
 965 }
 966
 967 static ssize_t nes_store_nonidx_addr(struct device_driver *ddp,
 968         const char *buf, size_t count)
 969 {
 970         char *p = (char *)buf;
 971
 972         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X')
 973                 sysfs_nonidx_addr = simple_strtoul(p, &p, 16);
 974
 975         return strnlen(buf, count);
 976 }
 977
 978 static ssize_t nes_show_nonidx_data(struct device_driver *ddp, char *buf)
 979 {
 980         u32 nonidx_data = 0xdead;
 981         u32 i = 0;
 982         struct nes_device *nesdev;
 983
 984         list_for_each_entry(nesdev, &nes_dev_list, list) {
 985                 if (i == ee_flsh_adapter) {
 986                         nonidx_data = nes_read32(nesdev->regs + sysfs_nonidx_addr);
 987                         break;
 988                 }
 989                 i++;
 990         }
 991
 992         return  snprintf(buf, PAGE_SIZE, "0x%x\n", nonidx_data);
 993 }
 994
 995 static ssize_t nes_store_nonidx_data(struct device_driver *ddp,
 996         const char *buf, size_t count)
 997 {
 998         char *p = (char *)buf;
 999         u32 val;
1000         u32 i = 0;
1001         struct nes_device *nesdev;
1002
1003         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
1004                 val = simple_strtoul(p, &p, 16);
1005                 list_for_each_entry(nesdev, &nes_dev_list, list) {
1006                         if (i == ee_flsh_adapter) {
1007                                 nes_write32(nesdev->regs + sysfs_nonidx_addr, val);
1008                                 break;
1009                         }
1010                         i++;
1011                 }
1012         }
1013         return strnlen(buf, count);
1014 }
1015
1016 static ssize_t nes_show_idx_addr(struct device_driver *ddp, char *buf)
1017 {
1018         return  snprintf(buf, PAGE_SIZE, "0x%x\n", sysfs_idx_addr);
1019 }
1020
1021 static ssize_t nes_store_idx_addr(struct device_driver *ddp,
1022         const char *buf, size_t count)
1023 {
1024         char *p = (char *)buf;
1025
1026         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X')
1027                 sysfs_idx_addr = simple_strtoul(p, &p, 16);
1028
1029         return strnlen(buf, count);
1030 }
1031
1032 static ssize_t nes_show_idx_data(struct device_driver *ddp, char *buf)
1033 {
1034         u32 idx_data = 0xdead;
1035         u32 i = 0;
1036         struct nes_device *nesdev;
1037
1038         list_for_each_entry(nesdev, &nes_dev_list, list) {
1039                 if (i == ee_flsh_adapter) {
1040                         idx_data = nes_read_indexed(nesdev, sysfs_idx_addr);
1041                         break;
1042                 }
1043                 i++;
1044         }
1045
1046         return  snprintf(buf, PAGE_SIZE, "0x%x\n", idx_data);
1047 }
1048
1049 static ssize_t nes_store_idx_data(struct device_driver *ddp,
1050         const char *buf, size_t count)
1051 {
1052         char *p = (char *)buf;
1053         u32 val;
1054         u32 i = 0;
1055         struct nes_device *nesdev;
1056
1057         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
1058                 val = simple_strtoul(p, &p, 16);
1059                 list_for_each_entry(nesdev, &nes_dev_list, list) {
1060                         if (i == ee_flsh_adapter) {
1061                                 nes_write_indexed(nesdev, sysfs_idx_addr, val);
1062                                 break;
1063                         }
1064                         i++;
1065                 }
1066         }
1067         return strnlen(buf, count);
1068 }
1069
1070
1071 /**
1072  * nes_show_wqm_quanta
1073  */
1074 static ssize_t nes_show_wqm_quanta(struct device_driver *ddp, char *buf)
1075 {
1076         u32 wqm_quanta_value = 0xdead;
1077         u32 i = 0;
1078         struct nes_device *nesdev;
1079
1080         list_for_each_entry(nesdev, &nes_dev_list, list) {
1081                 if (i == ee_flsh_adapter) {
1082                         wqm_quanta_value = nesdev->nesadapter->wqm_quanta;
1083                         break;
1084                 }
1085                 i++;
1086         }
1087
1088         return  snprintf(buf, PAGE_SIZE, "0x%X\n", wqm_quanta);
1089 }
1090
1091
1092 /**
1093  * nes_store_wqm_quanta
1094  */
1095 static ssize_t nes_store_wqm_quanta(struct device_driver *ddp,
1096                                         const char *buf, size_t count)
1097 {
1098         unsigned long wqm_quanta_value;
1099         u32 wqm_config1;
1100         u32 i = 0;
1101         struct nes_device *nesdev;
1102
1103         strict_strtoul(buf, 0, &wqm_quanta_value);
1104         list_for_each_entry(nesdev, &nes_dev_list, list) {
1105                 if (i == ee_flsh_adapter) {
1106                         nesdev->nesadapter->wqm_quanta = wqm_quanta_value;
1107                         wqm_config1 = nes_read_indexed(nesdev,
1108                                                 NES_IDX_WQM_CONFIG1);
1109                         nes_write_indexed(nesdev, NES_IDX_WQM_CONFIG1,
1110                                         ((wqm_quanta_value << 1) |
1111                                         (wqm_config1 & 0x00000001)));
1112                         break;
1113                 }
1114                 i++;
1115         }
1116         return strnlen(buf, count);
1117 }
1118
1119 static DRIVER_ATTR(adapter, S_IRUSR | S_IWUSR,
1120                    nes_show_adapter, nes_store_adapter);
1121 static DRIVER_ATTR(eeprom_cmd, S_IRUSR | S_IWUSR,
1122                    nes_show_ee_cmd, nes_store_ee_cmd);
1123 static DRIVER_ATTR(eeprom_data, S_IRUSR | S_IWUSR,
1124                    nes_show_ee_data, nes_store_ee_data);
1125 static DRIVER_ATTR(flash_cmd, S_IRUSR | S_IWUSR,
1126                    nes_show_flash_cmd, nes_store_flash_cmd);
1127 static DRIVER_ATTR(flash_data, S_IRUSR | S_IWUSR,
1128                    nes_show_flash_data, nes_store_flash_data);
1129 static DRIVER_ATTR(nonidx_addr, S_IRUSR | S_IWUSR,
1130                    nes_show_nonidx_addr, nes_store_nonidx_addr);
1131 static DRIVER_ATTR(nonidx_data, S_IRUSR | S_IWUSR,
1132                    nes_show_nonidx_data, nes_store_nonidx_data);
1133 static DRIVER_ATTR(idx_addr, S_IRUSR | S_IWUSR,
1134                    nes_show_idx_addr, nes_store_idx_addr);
1135 static DRIVER_ATTR(idx_data, S_IRUSR | S_IWUSR,
1136                    nes_show_idx_data, nes_store_idx_data);
1137 static DRIVER_ATTR(wqm_quanta, S_IRUSR | S_IWUSR,
1138                    nes_show_wqm_quanta, nes_store_wqm_quanta);
1139
1140 static int nes_create_driver_sysfs(struct pci_driver *drv)
1141 {
1142         int error;
1143         error  = driver_create_file(&drv->driver, &driver_attr_adapter);
1144         error |= driver_create_file(&drv->driver, &driver_attr_eeprom_cmd);
1145         error |= driver_create_file(&drv->driver, &driver_attr_eeprom_data);
1146         error |= driver_create_file(&drv->driver, &driver_attr_flash_cmd);
1147         error |= driver_create_file(&drv->driver, &driver_attr_flash_data);
1148         error |= driver_create_file(&drv->driver, &driver_attr_nonidx_addr);
1149         error |= driver_create_file(&drv->driver, &driver_attr_nonidx_data);
1150         error |= driver_create_file(&drv->driver, &driver_attr_idx_addr);
1151         error |= driver_create_file(&drv->driver, &driver_attr_idx_data);
1152         error |= driver_create_file(&drv->driver, &driver_attr_wqm_quanta);
1153         return error;
1154 }
1155
1156 static void nes_remove_driver_sysfs(struct pci_driver *drv)
1157 {
1158         driver_remove_file(&drv->driver, &driver_attr_adapter);
1159         driver_remove_file(&drv->driver, &driver_attr_eeprom_cmd);
1160         driver_remove_file(&drv->driver, &driver_attr_eeprom_data);
1161         driver_remove_file(&drv->driver, &driver_attr_flash_cmd);
1162         driver_remove_file(&drv->driver, &driver_attr_flash_data);
1163         driver_remove_file(&drv->driver, &driver_attr_nonidx_addr);
1164         driver_remove_file(&drv->driver, &driver_attr_nonidx_data);
1165         driver_remove_file(&drv->driver, &driver_attr_idx_addr);
1166         driver_remove_file(&drv->driver, &driver_attr_idx_data);
1167         driver_remove_file(&drv->driver, &driver_attr_wqm_quanta);
1168 }
1169
1170 /**
1171  * nes_init_module - module initialization entry point
1172  */
1173 static int __init nes_init_module(void)
1174 {
1175         int retval;
1176         int retval1;
1177
1178         retval = nes_cm_start();
1179         if (retval) {
1180                 printk(KERN_ERR PFX "Unable to start NetEffect iWARP CM.\n");
1181                 return retval;
1182         }
1183         retval = pci_register_driver(&nes_pci_driver);
1184         if (retval >= 0) {
1185                 retval1 = nes_create_driver_sysfs(&nes_pci_driver);
1186                 if (retval1 < 0)
1187                         printk(KERN_ERR PFX "Unable to create NetEffect sys files.\n");
1188         }
1189         return retval;
1190 }
1191
1192
1193 /**
1194  * nes_exit_module - module unload entry point
1195  */
1196 static void __exit nes_exit_module(void)
1197 {
1198         nes_cm_stop();
1199         nes_remove_driver_sysfs(&nes_pci_driver);
1200
1201         pci_unregister_driver(&nes_pci_driver);
1202 }
1203
1204
1205 module_init(nes_init_module);
1206 module_exit(nes_exit_module);