drivers/infiniband/hw/nes/nes.c

   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         unsigned int addr;
 142         unsigned int mask;
 143
 144         addr = ntohl(ifa->ifa_address);
 145         mask = ntohl(ifa->ifa_mask);
 146         nes_debug(NES_DBG_NETDEV, "nes_inetaddr_event: ip address " NIPQUAD_FMT
 147                   ", netmask " NIPQUAD_FMT ".\n",
 148                   HIPQUAD(addr), HIPQUAD(mask));
 149         list_for_each_entry(nesdev, &nes_dev_list, list) {
 150                 nes_debug(NES_DBG_NETDEV, "Nesdev list entry = 0x%p. (%s)\n",
 151                                 nesdev, nesdev->netdev[0]->name);
 152                 netdev = nesdev->netdev[0];
 153                 nesvnic = netdev_priv(netdev);
 154                 if (netdev == event_netdev) {
 155                         if (nesvnic->rdma_enabled == 0) {
 156                                 nes_debug(NES_DBG_NETDEV, "Returning without processing event for %s since"
 157                                                 " RDMA is not enabled.\n",
 158                                                 netdev->name);
 159                                 return NOTIFY_OK;
 160                         }
 161                         /* we have ifa->ifa_address/mask here if we need it */
 162                         switch (event) {
 163                                 case NETDEV_DOWN:
 164                                         nes_debug(NES_DBG_NETDEV, "event:DOWN\n");
 165                                         nes_write_indexed(nesdev,
 166                                                         NES_IDX_DST_IP_ADDR+(0x10*PCI_FUNC(nesdev->pcidev->devfn)), 0);
 167
 168                                         nes_manage_arp_cache(netdev, netdev->dev_addr,
 169                                                         ntohl(nesvnic->local_ipaddr), NES_ARP_DELETE);
 170                                         nesvnic->local_ipaddr = 0;
 171                                         return NOTIFY_OK;
 172                                         break;
 173                                 case NETDEV_UP:
 174                                         nes_debug(NES_DBG_NETDEV, "event:UP\n");
 175
 176                                         if (nesvnic->local_ipaddr != 0) {
 177                                                 nes_debug(NES_DBG_NETDEV, "Interface already has local_ipaddr\n");
 178                                                 return NOTIFY_OK;
 179                                         }
 180                                         /* Add the address to the IP table */
 181                                         nesvnic->local_ipaddr = ifa->ifa_address;
 182
 183                                         nes_write_indexed(nesdev,
 184                                                         NES_IDX_DST_IP_ADDR+(0x10*PCI_FUNC(nesdev->pcidev->devfn)),
 185                                                         ntohl(ifa->ifa_address));
 186                                         nes_manage_arp_cache(netdev, netdev->dev_addr,
 187                                                         ntohl(nesvnic->local_ipaddr), NES_ARP_ADD);
 188                                         return NOTIFY_OK;
 189                                         break;
 190                                 default:
 191                                         break;
 192                         }
 193                 }
 194         }
 195
 196         return NOTIFY_DONE;
 197 }
 198
 199
 200 /**
 201  * nes_net_event
 202  */
 203 static int nes_net_event(struct notifier_block *notifier,
 204                 unsigned long event, void *ptr)
 205 {
 206         struct neighbour *neigh = ptr;
 207         struct nes_device *nesdev;
 208         struct net_device *netdev;
 209         struct nes_vnic *nesvnic;
 210
 211         switch (event) {
 212                 case NETEVENT_NEIGH_UPDATE:
 213                         list_for_each_entry(nesdev, &nes_dev_list, list) {
 214                                 /* nes_debug(NES_DBG_NETDEV, "Nesdev list entry = 0x%p.\n", nesdev); */
 215                                 netdev = nesdev->netdev[0];
 216                                 nesvnic = netdev_priv(netdev);
 217                                 if (netdev == neigh->dev) {
 218                                         if (nesvnic->rdma_enabled == 0) {
 219                                                 nes_debug(NES_DBG_NETDEV, "Skipping device %s since no RDMA\n",
 220                                                                 netdev->name);
 221                                         } else {
 222                                                 if (neigh->nud_state & NUD_VALID) {
 223                                                         nes_manage_arp_cache(neigh->dev, neigh->ha,
 224                                                                         ntohl(*(__be32 *)neigh->primary_key), NES_ARP_ADD);
 225                                                 } else {
 226                                                         nes_manage_arp_cache(neigh->dev, neigh->ha,
 227                                                                         ntohl(*(__be32 *)neigh->primary_key), NES_ARP_DELETE);
 228                                                 }
 229                                         }
 230                                         return NOTIFY_OK;
 231                                 }
 232                         }
 233                         break;
 234                 default:
 235                         nes_debug(NES_DBG_NETDEV, "NETEVENT_ %lu undefined\n", event);
 236                         break;
 237         }
 238
 239         return NOTIFY_DONE;
 240 }
 241
 242
 243 /**
 244  * nes_add_ref
 245  */
 246 void nes_add_ref(struct ib_qp *ibqp)
 247 {
 248         struct nes_qp *nesqp;
 249
 250         nesqp = to_nesqp(ibqp);
 251         nes_debug(NES_DBG_QP, "Bumping refcount for QP%u.  Pre-inc value = %u\n",
 252                         ibqp->qp_num, atomic_read(&nesqp->refcount));
 253         atomic_inc(&nesqp->refcount);
 254 }
 255
 256 static void nes_cqp_rem_ref_callback(struct nes_device *nesdev, struct nes_cqp_request *cqp_request)
 257 {
 258         unsigned long flags;
 259         struct nes_qp *nesqp = cqp_request->cqp_callback_pointer;
 260         struct nes_adapter *nesadapter = nesdev->nesadapter;
 261         u32 qp_id;
 262
 263         atomic_inc(&qps_destroyed);
 264
 265         /* Free the control structures */
 266
 267         qp_id = nesqp->hwqp.qp_id;
 268         if (nesqp->pbl_vbase) {
 269                 pci_free_consistent(nesdev->pcidev, nesqp->qp_mem_size,
 270                                 nesqp->hwqp.q2_vbase, nesqp->hwqp.q2_pbase);
 271                 spin_lock_irqsave(&nesadapter->pbl_lock, flags);
 272                 nesadapter->free_256pbl++;
 273                 spin_unlock_irqrestore(&nesadapter->pbl_lock, flags);
 274                 pci_free_consistent(nesdev->pcidev, 256, nesqp->pbl_vbase, nesqp->pbl_pbase);
 275                 nesqp->pbl_vbase = NULL;
 276
 277         } else {
 278                 pci_free_consistent(nesdev->pcidev, nesqp->qp_mem_size,
 279                                 nesqp->hwqp.sq_vbase, nesqp->hwqp.sq_pbase);
 280         }
 281         nes_free_resource(nesadapter, nesadapter->allocated_qps, nesqp->hwqp.qp_id);
 282
 283         nesadapter->qp_table[nesqp->hwqp.qp_id-NES_FIRST_QPN] = NULL;
 284         kfree(nesqp->allocated_buffer);
 285
 286 }
 287
 288 /**
 289  * nes_rem_ref
 290  */
 291 void nes_rem_ref(struct ib_qp *ibqp)
 292 {
 293         u64 u64temp;
 294         struct nes_qp *nesqp;
 295         struct nes_vnic *nesvnic = to_nesvnic(ibqp->device);
 296         struct nes_device *nesdev = nesvnic->nesdev;
 297         struct nes_hw_cqp_wqe *cqp_wqe;
 298         struct nes_cqp_request *cqp_request;
 299         u32 opcode;
 300
 301         nesqp = to_nesqp(ibqp);
 302
 303         if (atomic_read(&nesqp->refcount) == 0) {
 304                 printk(KERN_INFO PFX "%s: Reference count already 0 for QP%d, last aeq = 0x%04X.\n",
 305                                 __func__, ibqp->qp_num, nesqp->last_aeq);
 306                 BUG();
 307         }
 308
 309         if (atomic_dec_and_test(&nesqp->refcount)) {
 310                 /* Destroy the QP */
 311                 cqp_request = nes_get_cqp_request(nesdev);
 312                 if (cqp_request == NULL) {
 313                         nes_debug(NES_DBG_QP, "Failed to get a cqp_request.\n");
 314                         return;
 315                 }
 316                 cqp_request->waiting = 0;
 317                 cqp_request->callback = 1;
 318                 cqp_request->cqp_callback = nes_cqp_rem_ref_callback;
 319                 cqp_request->cqp_callback_pointer = nesqp;
 320                 cqp_wqe = &cqp_request->cqp_wqe;
 321
 322                 nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
 323                 opcode = NES_CQP_DESTROY_QP | NES_CQP_QP_TYPE_IWARP;
 324
 325                 if (nesqp->hte_added) {
 326                         opcode  |= NES_CQP_QP_DEL_HTE;
 327                         nesqp->hte_added = 0;
 328                 }
 329                 set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, opcode);
 330                 set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX, nesqp->hwqp.qp_id);
 331                 u64temp = (u64)nesqp->nesqp_context_pbase;
 332                 set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_QP_WQE_CONTEXT_LOW_IDX, u64temp);
 333                 nes_post_cqp_request(nesdev, cqp_request);
 334         }
 335 }
 336
 337
 338 /**
 339  * nes_get_qp
 340  */
 341 struct ib_qp *nes_get_qp(struct ib_device *device, int qpn)
 342 {
 343         struct nes_vnic *nesvnic = to_nesvnic(device);
 344         struct nes_device *nesdev = nesvnic->nesdev;
 345         struct nes_adapter *nesadapter = nesdev->nesadapter;
 346
 347         if ((qpn < NES_FIRST_QPN) || (qpn >= (NES_FIRST_QPN + nesadapter->max_qp)))
 348                 return NULL;
 349
 350         return &nesadapter->qp_table[qpn - NES_FIRST_QPN]->ibqp;
 351 }
 352
 353
 354 /**
 355  * nes_print_macaddr
 356  */
 357 static void nes_print_macaddr(struct net_device *netdev)
 358 {
 359         DECLARE_MAC_BUF(mac);
 360
 361         nes_debug(NES_DBG_INIT, "%s: %s, IRQ %u\n",
 362                   netdev->name, print_mac(mac, netdev->dev_addr), netdev->irq);
 363 }
 364
 365 /**
 366  * nes_interrupt - handle interrupts
 367  */
 368 static irqreturn_t nes_interrupt(int irq, void *dev_id)
 369 {
 370         struct nes_device *nesdev = (struct nes_device *)dev_id;
 371         int handled = 0;
 372         u32 int_mask;
 373         u32 int_req;
 374         u32 int_stat;
 375         u32 intf_int_stat;
 376         u32 timer_stat;
 377
 378         if (nesdev->msi_enabled) {
 379                 /* No need to read the interrupt pending register if msi is enabled */
 380                 handled = 1;
 381         } else {
 382                 if (unlikely(nesdev->nesadapter->hw_rev == NE020_REV)) {
 383                         /* Master interrupt enable provides synchronization for kicking off bottom half
 384                           when interrupt sharing is going on */
 385                         int_mask = nes_read32(nesdev->regs + NES_INT_MASK);
 386                         if (int_mask & 0x80000000) {
 387                                 /* Check interrupt status to see if this might be ours */
 388                                 int_stat = nes_read32(nesdev->regs + NES_INT_STAT);
 389                                 int_req = nesdev->int_req;
 390                                 if (int_stat&int_req) {
 391                                         /* if interesting CEQ or AEQ is pending, claim the interrupt */
 392                                         if ((int_stat&int_req) & (~(NES_INT_TIMER|NES_INT_INTF))) {
 393                                                 handled = 1;
 394                                         } else {
 395                                                 if (((int_stat & int_req) & NES_INT_TIMER) == NES_INT_TIMER) {
 396                                                         /* Timer might be running but might be for another function */
 397                                                         timer_stat = nes_read32(nesdev->regs + NES_TIMER_STAT);
 398                                                         if ((timer_stat & nesdev->timer_int_req) != 0) {
 399                                                                 handled = 1;
 400                                                         }
 401                                                 }
 402                                                 if ((((int_stat & int_req) & NES_INT_INTF) == NES_INT_INTF) &&
 403                                                                 (handled == 0)) {
 404                                                         intf_int_stat = nes_read32(nesdev->regs+NES_INTF_INT_STAT);
 405                                                         if ((intf_int_stat & nesdev->intf_int_req) != 0) {
 406                                                                 handled = 1;
 407                                                         }
 408                                                 }
 409                                         }
 410                                         if (handled) {
 411                                                 nes_write32(nesdev->regs+NES_INT_MASK, int_mask & (~0x80000000));
 412                                                 int_mask = nes_read32(nesdev->regs+NES_INT_MASK);
 413                                                 /* Save off the status to save an additional read */
 414                                                 nesdev->int_stat = int_stat;
 415                                                 nesdev->napi_isr_ran = 1;
 416                                         }
 417                                 }
 418                         }
 419                 } else {
 420                         handled = nes_read32(nesdev->regs+NES_INT_PENDING);
 421                 }
 422         }
 423
 424         if (handled) {
 425
 426                 if (nes_napi_isr(nesdev) == 0) {
 427                         tasklet_schedule(&nesdev->dpc_tasklet);
 428
 429                 }
 430                 return IRQ_HANDLED;
 431         } else {
 432                 return IRQ_NONE;
 433         }
 434 }
 435
 436
 437 /**
 438  * nes_probe - Device initialization
 439  */
 440 static int __devinit nes_probe(struct pci_dev *pcidev, const struct pci_device_id *ent)
 441 {
 442         struct net_device *netdev = NULL;
 443         struct nes_device *nesdev = NULL;
 444         int ret = 0;
 445         struct nes_vnic *nesvnic = NULL;
 446         void __iomem *mmio_regs = NULL;
 447         u8 hw_rev;
 448
 449         assert(pcidev != NULL);
 450         assert(ent != NULL);
 451
 452         printk(KERN_INFO PFX "NetEffect RNIC driver v%s loading. (%s)\n",
 453                         DRV_VERSION, pci_name(pcidev));
 454
 455         ret = pci_enable_device(pcidev);
 456         if (ret) {
 457                 printk(KERN_ERR PFX "Unable to enable PCI device. (%s)\n", pci_name(pcidev));
 458                 goto bail0;
 459         }
 460
 461         nes_debug(NES_DBG_INIT, "BAR0 (@0x%08lX) size = 0x%lX bytes\n",
 462                         (long unsigned int)pci_resource_start(pcidev, BAR_0),
 463                         (long unsigned int)pci_resource_len(pcidev, BAR_0));
 464         nes_debug(NES_DBG_INIT, "BAR1 (@0x%08lX) size = 0x%lX bytes\n",
 465                         (long unsigned int)pci_resource_start(pcidev, BAR_1),
 466                         (long unsigned int)pci_resource_len(pcidev, BAR_1));
 467
 468         /* Make sure PCI base addr are MMIO */
 469         if (!(pci_resource_flags(pcidev, BAR_0) & IORESOURCE_MEM) ||
 470                         !(pci_resource_flags(pcidev, BAR_1) & IORESOURCE_MEM)) {
 471                 printk(KERN_ERR PFX "PCI regions not an MMIO resource\n");
 472                 ret = -ENODEV;
 473                 goto bail1;
 474         }
 475
 476         /* Reserve PCI I/O and memory resources */
 477         ret = pci_request_regions(pcidev, DRV_NAME);
 478         if (ret) {
 479                 printk(KERN_ERR PFX "Unable to request regions. (%s)\n", pci_name(pcidev));
 480                 goto bail1;
 481         }
 482
 483         if ((sizeof(dma_addr_t) > 4)) {
 484                 ret = pci_set_dma_mask(pcidev, DMA_64BIT_MASK);
 485                 if (ret < 0) {
 486                         printk(KERN_ERR PFX "64b DMA mask configuration failed\n");
 487                         goto bail2;
 488                 }
 489                 ret = pci_set_consistent_dma_mask(pcidev, DMA_64BIT_MASK);
 490                 if (ret) {
 491                         printk(KERN_ERR PFX "64b DMA consistent mask configuration failed\n");
 492                         goto bail2;
 493                 }
 494         } else {
 495                 ret = pci_set_dma_mask(pcidev, DMA_32BIT_MASK);
 496                 if (ret < 0) {
 497                         printk(KERN_ERR PFX "32b DMA mask configuration failed\n");
 498                         goto bail2;
 499                 }
 500                 ret = pci_set_consistent_dma_mask(pcidev, DMA_32BIT_MASK);
 501                 if (ret) {
 502                         printk(KERN_ERR PFX "32b DMA consistent mask configuration failed\n");
 503                         goto bail2;
 504                 }
 505         }
 506
 507         pci_set_master(pcidev);
 508
 509         /* Allocate hardware structure */
 510         nesdev = kzalloc(sizeof(struct nes_device), GFP_KERNEL);
 511         if (!nesdev) {
 512                 printk(KERN_ERR PFX "%s: Unable to alloc hardware struct\n", pci_name(pcidev));
 513                 ret = -ENOMEM;
 514                 goto bail2;
 515         }
 516
 517         nes_debug(NES_DBG_INIT, "Allocated nes device at %p\n", nesdev);
 518         nesdev->pcidev = pcidev;
 519         pci_set_drvdata(pcidev, nesdev);
 520
 521         pci_read_config_byte(pcidev, 0x0008, &hw_rev);
 522         nes_debug(NES_DBG_INIT, "hw_rev=%u\n", hw_rev);
 523
 524         spin_lock_init(&nesdev->indexed_regs_lock);
 525
 526         /* Remap the PCI registers in adapter BAR0 to kernel VA space */
 527         mmio_regs = ioremap_nocache(pci_resource_start(pcidev, BAR_0), sizeof(mmio_regs));
 528         if (mmio_regs == NULL) {
 529                 printk(KERN_ERR PFX "Unable to remap BAR0\n");
 530                 ret = -EIO;
 531                 goto bail3;
 532         }
 533         nesdev->regs = mmio_regs;
 534         nesdev->index_reg = 0x50 + (PCI_FUNC(pcidev->devfn)*8) + mmio_regs;
 535
 536         /* Ensure interrupts are disabled */
 537         nes_write32(nesdev->regs+NES_INT_MASK, 0x7fffffff);
 538
 539         if (nes_drv_opt & NES_DRV_OPT_ENABLE_MSI) {
 540                 if (!pci_enable_msi(nesdev->pcidev)) {
 541                         nesdev->msi_enabled = 1;
 542                         nes_debug(NES_DBG_INIT, "MSI is enabled for device %s\n",
 543                                         pci_name(pcidev));
 544                 } else {
 545                         nes_debug(NES_DBG_INIT, "MSI is disabled by linux for device %s\n",
 546                                         pci_name(pcidev));
 547                 }
 548         } else {
 549                 nes_debug(NES_DBG_INIT, "MSI not requested due to driver options for device %s\n",
 550                                 pci_name(pcidev));
 551         }
 552
 553         nesdev->csr_start = pci_resource_start(nesdev->pcidev, BAR_0);
 554         nesdev->doorbell_region = pci_resource_start(nesdev->pcidev, BAR_1);
 555
 556         /* Init the adapter */
 557         nesdev->nesadapter = nes_init_adapter(nesdev, hw_rev);
 558         if (!nesdev->nesadapter) {
 559                 printk(KERN_ERR PFX "Unable to initialize adapter.\n");
 560                 ret = -ENOMEM;
 561                 goto bail5;
 562         }
 563         nesdev->nesadapter->et_rx_coalesce_usecs_irq = interrupt_mod_interval;
 564         nesdev->nesadapter->wqm_quanta = wqm_quanta;
 565
 566         /* nesdev->base_doorbell_index =
 567                         nesdev->nesadapter->pd_config_base[PCI_FUNC(nesdev->pcidev->devfn)]; */
 568         nesdev->base_doorbell_index = 1;
 569         nesdev->doorbell_start = nesdev->nesadapter->doorbell_start;
 570         if (nesdev->nesadapter->phy_type[0] == NES_PHY_TYPE_PUMA_1G) {
 571                 switch (PCI_FUNC(nesdev->pcidev->devfn) %
 572                         nesdev->nesadapter->port_count) {
 573                 case 1:
 574                         nesdev->mac_index = 2;
 575                         break;
 576                 case 2:
 577                         nesdev->mac_index = 1;
 578                         break;
 579                 case 3:
 580                         nesdev->mac_index = 3;
 581                         break;
 582                 case 0:
 583                 default:
 584                         nesdev->mac_index = 0;
 585                 }
 586         } else {
 587                 nesdev->mac_index = PCI_FUNC(nesdev->pcidev->devfn) %
 588                                                 nesdev->nesadapter->port_count;
 589         }
 590
 591         tasklet_init(&nesdev->dpc_tasklet, nes_dpc, (unsigned long)nesdev);
 592
 593         /* bring up the Control QP */
 594         if (nes_init_cqp(nesdev)) {
 595                 ret = -ENODEV;
 596                 goto bail6;
 597         }
 598
 599         /* Arm the CCQ */
 600         nes_write32(nesdev->regs+NES_CQE_ALLOC, NES_CQE_ALLOC_NOTIFY_NEXT |
 601                         PCI_FUNC(nesdev->pcidev->devfn));
 602         nes_read32(nesdev->regs+NES_CQE_ALLOC);
 603
 604         /* Enable the interrupts */
 605         nesdev->int_req = (0x101 << PCI_FUNC(nesdev->pcidev->devfn)) |
 606                         (1 << (PCI_FUNC(nesdev->pcidev->devfn)+16));
 607         if (PCI_FUNC(nesdev->pcidev->devfn) < 4) {
 608                 nesdev->int_req |= (1 << (PCI_FUNC(nesdev->mac_index)+24));
 609         }
 610
 611         /* TODO: This really should be the first driver to load, not function 0 */
 612         if (PCI_FUNC(nesdev->pcidev->devfn) == 0) {
 613                 /* pick up PCI and critical errors if the first driver to load */
 614                 nesdev->intf_int_req = NES_INTF_INT_PCIERR | NES_INTF_INT_CRITERR;
 615                 nesdev->int_req |= NES_INT_INTF;
 616         } else {
 617                 nesdev->intf_int_req = 0;
 618         }
 619         nesdev->intf_int_req |= (1 << (PCI_FUNC(nesdev->pcidev->devfn)+16));
 620         nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS0, 0);
 621         nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS1, 0);
 622         nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS2, 0x00001265);
 623         nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS4, 0x18021804);
 624
 625         nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS3, 0x17801790);
 626
 627         /* deal with both periodic and one_shot */
 628         nesdev->timer_int_req = 0x101 << PCI_FUNC(nesdev->pcidev->devfn);
 629         nesdev->nesadapter->timer_int_req |= nesdev->timer_int_req;
 630         nes_debug(NES_DBG_INIT, "setting int_req for function %u, nesdev = 0x%04X, adapter = 0x%04X\n",
 631                         PCI_FUNC(nesdev->pcidev->devfn),
 632                         nesdev->timer_int_req, nesdev->nesadapter->timer_int_req);
 633
 634         nes_write32(nesdev->regs+NES_INTF_INT_MASK, ~(nesdev->intf_int_req));
 635
 636         list_add_tail(&nesdev->list, &nes_dev_list);
 637
 638         /* Request an interrupt line for the driver */
 639         ret = request_irq(pcidev->irq, nes_interrupt, IRQF_SHARED, DRV_NAME, nesdev);
 640         if (ret) {
 641                 printk(KERN_ERR PFX "%s: requested IRQ %u is busy\n",
 642                                 pci_name(pcidev), pcidev->irq);
 643                 goto bail65;
 644         }
 645
 646         nes_write32(nesdev->regs+NES_INT_MASK, ~nesdev->int_req);
 647
 648         if (nes_notifiers_registered == 0) {
 649                 register_inetaddr_notifier(&nes_inetaddr_notifier);
 650                 register_netevent_notifier(&nes_net_notifier);
 651         }
 652         nes_notifiers_registered++;
 653
 654         /* Initialize network devices */
 655                 if ((netdev = nes_netdev_init(nesdev, mmio_regs)) == NULL) {
 656                         goto bail7;
 657                 }
 658
 659                 /* Register network device */
 660                 ret = register_netdev(netdev);
 661                 if (ret) {
 662                         printk(KERN_ERR PFX "Unable to register netdev, ret = %d\n", ret);
 663                         nes_netdev_destroy(netdev);
 664                         goto bail7;
 665                 }
 666
 667                 nes_print_macaddr(netdev);
 668                 /* create a CM core for this netdev */
 669                 nesvnic = netdev_priv(netdev);
 670
 671                 nesdev->netdev_count++;
 672                 nesdev->nesadapter->netdev_count++;
 673
 674
 675         printk(KERN_ERR PFX "%s: NetEffect RNIC driver successfully loaded.\n",
 676                         pci_name(pcidev));
 677         return 0;
 678
 679         bail7:
 680         printk(KERN_ERR PFX "bail7\n");
 681         while (nesdev->netdev_count > 0) {
 682                 nesdev->netdev_count--;
 683                 nesdev->nesadapter->netdev_count--;
 684
 685                 unregister_netdev(nesdev->netdev[nesdev->netdev_count]);
 686                 nes_netdev_destroy(nesdev->netdev[nesdev->netdev_count]);
 687         }
 688
 689         nes_debug(NES_DBG_INIT, "netdev_count=%d, nesadapter->netdev_count=%d\n",
 690                         nesdev->netdev_count, nesdev->nesadapter->netdev_count);
 691
 692         nes_notifiers_registered--;
 693         if (nes_notifiers_registered == 0) {
 694                 unregister_netevent_notifier(&nes_net_notifier);
 695                 unregister_inetaddr_notifier(&nes_inetaddr_notifier);
 696         }
 697
 698         list_del(&nesdev->list);
 699         nes_destroy_cqp(nesdev);
 700
 701         bail65:
 702         printk(KERN_ERR PFX "bail65\n");
 703         free_irq(pcidev->irq, nesdev);
 704         if (nesdev->msi_enabled) {
 705                 pci_disable_msi(pcidev);
 706         }
 707         bail6:
 708         printk(KERN_ERR PFX "bail6\n");
 709         tasklet_kill(&nesdev->dpc_tasklet);
 710         /* Deallocate the Adapter Structure */
 711         nes_destroy_adapter(nesdev->nesadapter);
 712
 713         bail5:
 714         printk(KERN_ERR PFX "bail5\n");
 715         iounmap(nesdev->regs);
 716
 717         bail3:
 718         printk(KERN_ERR PFX "bail3\n");
 719         kfree(nesdev);
 720
 721         bail2:
 722         pci_release_regions(pcidev);
 723
 724         bail1:
 725         pci_disable_device(pcidev);
 726
 727         bail0:
 728         return ret;
 729 }
 730
 731
 732 /**
 733  * nes_remove - unload from kernel
 734  */
 735 static void __devexit nes_remove(struct pci_dev *pcidev)
 736 {
 737         struct nes_device *nesdev = pci_get_drvdata(pcidev);
 738         struct net_device *netdev;
 739         int netdev_index = 0;
 740
 741                 if (nesdev->netdev_count) {
 742                         netdev = nesdev->netdev[netdev_index];
 743                         if (netdev) {
 744                                 netif_stop_queue(netdev);
 745                                 unregister_netdev(netdev);
 746                                 nes_netdev_destroy(netdev);
 747
 748                                 nesdev->netdev[netdev_index] = NULL;
 749                                 nesdev->netdev_count--;
 750                                 nesdev->nesadapter->netdev_count--;
 751                         }
 752                 }
 753
 754         nes_notifiers_registered--;
 755         if (nes_notifiers_registered == 0) {
 756                 unregister_netevent_notifier(&nes_net_notifier);
 757                 unregister_inetaddr_notifier(&nes_inetaddr_notifier);
 758         }
 759
 760         list_del(&nesdev->list);
 761         nes_destroy_cqp(nesdev);
 762
 763         free_irq(pcidev->irq, nesdev);
 764         tasklet_kill(&nesdev->dpc_tasklet);
 765
 766         /* Deallocate the Adapter Structure */
 767         nes_destroy_adapter(nesdev->nesadapter);
 768
 769         if (nesdev->msi_enabled) {
 770                 pci_disable_msi(pcidev);
 771         }
 772
 773         iounmap(nesdev->regs);
 774         kfree(nesdev);
 775
 776         /* nes_debug(NES_DBG_SHUTDOWN, "calling pci_release_regions.\n"); */
 777         pci_release_regions(pcidev);
 778         pci_disable_device(pcidev);
 779         pci_set_drvdata(pcidev, NULL);
 780 }
 781
 782
 783 static struct pci_driver nes_pci_driver = {
 784         .name = DRV_NAME,
 785         .id_table = nes_pci_table,
 786         .probe = nes_probe,
 787         .remove = __devexit_p(nes_remove),
 788 };
 789
 790 static ssize_t nes_show_adapter(struct device_driver *ddp, char *buf)
 791 {
 792         unsigned int  devfn = 0xffffffff;
 793         unsigned char bus_number = 0xff;
 794         unsigned int  i = 0;
 795         struct nes_device *nesdev;
 796
 797         list_for_each_entry(nesdev, &nes_dev_list, list) {
 798                 if (i == ee_flsh_adapter) {
 799                         devfn = nesdev->pcidev->devfn;
 800                         bus_number = nesdev->pcidev->bus->number;
 801                         break;
 802                 }
 803                 i++;
 804         }
 805
 806         return snprintf(buf, PAGE_SIZE, "%x:%x\n", bus_number, devfn);
 807 }
 808
 809 static ssize_t nes_store_adapter(struct device_driver *ddp,
 810         const char *buf, size_t count)
 811 {
 812         char *p = (char *)buf;
 813
 814         ee_flsh_adapter = simple_strtoul(p, &p, 10);
 815         return strnlen(buf, count);
 816 }
 817
 818 static ssize_t nes_show_ee_cmd(struct device_driver *ddp, char *buf)
 819 {
 820         u32 eeprom_cmd = 0xdead;
 821         u32 i = 0;
 822         struct nes_device *nesdev;
 823
 824         list_for_each_entry(nesdev, &nes_dev_list, list) {
 825                 if (i == ee_flsh_adapter) {
 826                         eeprom_cmd = nes_read32(nesdev->regs + NES_EEPROM_COMMAND);
 827                         break;
 828                 }
 829                 i++;
 830         }
 831         return snprintf(buf, PAGE_SIZE, "0x%x\n", eeprom_cmd);
 832 }
 833
 834 static ssize_t nes_store_ee_cmd(struct device_driver *ddp,
 835         const char *buf, size_t count)
 836 {
 837         char *p = (char *)buf;
 838         u32 val;
 839         u32 i = 0;
 840         struct nes_device *nesdev;
 841
 842         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
 843                 val = simple_strtoul(p, &p, 16);
 844                 list_for_each_entry(nesdev, &nes_dev_list, list) {
 845                         if (i == ee_flsh_adapter) {
 846                                 nes_write32(nesdev->regs + NES_EEPROM_COMMAND, val);
 847                                 break;
 848                         }
 849                         i++;
 850                 }
 851         }
 852         return strnlen(buf, count);
 853 }
 854
 855 static ssize_t nes_show_ee_data(struct device_driver *ddp, char *buf)
 856 {
 857         u32 eeprom_data = 0xdead;
 858         u32 i = 0;
 859         struct nes_device *nesdev;
 860
 861         list_for_each_entry(nesdev, &nes_dev_list, list) {
 862                 if (i == ee_flsh_adapter) {
 863                         eeprom_data = nes_read32(nesdev->regs + NES_EEPROM_DATA);
 864                         break;
 865                 }
 866                 i++;
 867         }
 868
 869         return  snprintf(buf, PAGE_SIZE, "0x%x\n", eeprom_data);
 870 }
 871
 872 static ssize_t nes_store_ee_data(struct device_driver *ddp,
 873         const char *buf, size_t count)
 874 {
 875         char *p = (char *)buf;
 876         u32 val;
 877         u32 i = 0;
 878         struct nes_device *nesdev;
 879
 880         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
 881                 val = simple_strtoul(p, &p, 16);
 882                 list_for_each_entry(nesdev, &nes_dev_list, list) {
 883                         if (i == ee_flsh_adapter) {
 884                                 nes_write32(nesdev->regs + NES_EEPROM_DATA, val);
 885                                 break;
 886                         }
 887                         i++;
 888                 }
 889         }
 890         return strnlen(buf, count);
 891 }
 892
 893 static ssize_t nes_show_flash_cmd(struct device_driver *ddp, char *buf)
 894 {
 895         u32 flash_cmd = 0xdead;
 896         u32 i = 0;
 897         struct nes_device *nesdev;
 898
 899         list_for_each_entry(nesdev, &nes_dev_list, list) {
 900                 if (i == ee_flsh_adapter) {
 901                         flash_cmd = nes_read32(nesdev->regs + NES_FLASH_COMMAND);
 902                         break;
 903                 }
 904                 i++;
 905         }
 906
 907         return  snprintf(buf, PAGE_SIZE, "0x%x\n", flash_cmd);
 908 }
 909
 910 static ssize_t nes_store_flash_cmd(struct device_driver *ddp,
 911         const char *buf, size_t count)
 912 {
 913         char *p = (char *)buf;
 914         u32 val;
 915         u32 i = 0;
 916         struct nes_device *nesdev;
 917
 918         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
 919                 val = simple_strtoul(p, &p, 16);
 920                 list_for_each_entry(nesdev, &nes_dev_list, list) {
 921                         if (i == ee_flsh_adapter) {
 922                                 nes_write32(nesdev->regs + NES_FLASH_COMMAND, val);
 923                                 break;
 924                         }
 925                         i++;
 926                 }
 927         }
 928         return strnlen(buf, count);
 929 }
 930
 931 static ssize_t nes_show_flash_data(struct device_driver *ddp, char *buf)
 932 {
 933         u32 flash_data = 0xdead;
 934         u32 i = 0;
 935         struct nes_device *nesdev;
 936
 937         list_for_each_entry(nesdev, &nes_dev_list, list) {
 938                 if (i == ee_flsh_adapter) {
 939                         flash_data = nes_read32(nesdev->regs + NES_FLASH_DATA);
 940                         break;
 941                 }
 942                 i++;
 943         }
 944
 945         return  snprintf(buf, PAGE_SIZE, "0x%x\n", flash_data);
 946 }
 947
 948 static ssize_t nes_store_flash_data(struct device_driver *ddp,
 949         const char *buf, size_t count)
 950 {
 951         char *p = (char *)buf;
 952         u32 val;
 953         u32 i = 0;
 954         struct nes_device *nesdev;
 955
 956         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
 957                 val = simple_strtoul(p, &p, 16);
 958                 list_for_each_entry(nesdev, &nes_dev_list, list) {
 959                         if (i == ee_flsh_adapter) {
 960                                 nes_write32(nesdev->regs + NES_FLASH_DATA, val);
 961                                 break;
 962                         }
 963                         i++;
 964                 }
 965         }
 966         return strnlen(buf, count);
 967 }
 968
 969 static ssize_t nes_show_nonidx_addr(struct device_driver *ddp, char *buf)
 970 {
 971         return  snprintf(buf, PAGE_SIZE, "0x%x\n", sysfs_nonidx_addr);
 972 }
 973
 974 static ssize_t nes_store_nonidx_addr(struct device_driver *ddp,
 975         const char *buf, size_t count)
 976 {
 977         char *p = (char *)buf;
 978
 979         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X')
 980                 sysfs_nonidx_addr = simple_strtoul(p, &p, 16);
 981
 982         return strnlen(buf, count);
 983 }
 984
 985 static ssize_t nes_show_nonidx_data(struct device_driver *ddp, char *buf)
 986 {
 987         u32 nonidx_data = 0xdead;
 988         u32 i = 0;
 989         struct nes_device *nesdev;
 990
 991         list_for_each_entry(nesdev, &nes_dev_list, list) {
 992                 if (i == ee_flsh_adapter) {
 993                         nonidx_data = nes_read32(nesdev->regs + sysfs_nonidx_addr);
 994                         break;
 995                 }
 996                 i++;
 997         }
 998
 999         return  snprintf(buf, PAGE_SIZE, "0x%x\n", nonidx_data);
1000 }
1001
1002 static ssize_t nes_store_nonidx_data(struct device_driver *ddp,
1003         const char *buf, size_t count)
1004 {
1005         char *p = (char *)buf;
1006         u32 val;
1007         u32 i = 0;
1008         struct nes_device *nesdev;
1009
1010         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
1011                 val = simple_strtoul(p, &p, 16);
1012                 list_for_each_entry(nesdev, &nes_dev_list, list) {
1013                         if (i == ee_flsh_adapter) {
1014                                 nes_write32(nesdev->regs + sysfs_nonidx_addr, val);
1015                                 break;
1016                         }
1017                         i++;
1018                 }
1019         }
1020         return strnlen(buf, count);
1021 }
1022
1023 static ssize_t nes_show_idx_addr(struct device_driver *ddp, char *buf)
1024 {
1025         return  snprintf(buf, PAGE_SIZE, "0x%x\n", sysfs_idx_addr);
1026 }
1027
1028 static ssize_t nes_store_idx_addr(struct device_driver *ddp,
1029         const char *buf, size_t count)
1030 {
1031         char *p = (char *)buf;
1032
1033         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X')
1034                 sysfs_idx_addr = simple_strtoul(p, &p, 16);
1035
1036         return strnlen(buf, count);
1037 }
1038
1039 static ssize_t nes_show_idx_data(struct device_driver *ddp, char *buf)
1040 {
1041         u32 idx_data = 0xdead;
1042         u32 i = 0;
1043         struct nes_device *nesdev;
1044
1045         list_for_each_entry(nesdev, &nes_dev_list, list) {
1046                 if (i == ee_flsh_adapter) {
1047                         idx_data = nes_read_indexed(nesdev, sysfs_idx_addr);
1048                         break;
1049                 }
1050                 i++;
1051         }
1052
1053         return  snprintf(buf, PAGE_SIZE, "0x%x\n", idx_data);
1054 }
1055
1056 static ssize_t nes_store_idx_data(struct device_driver *ddp,
1057         const char *buf, size_t count)
1058 {
1059         char *p = (char *)buf;
1060         u32 val;
1061         u32 i = 0;
1062         struct nes_device *nesdev;
1063
1064         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
1065                 val = simple_strtoul(p, &p, 16);
1066                 list_for_each_entry(nesdev, &nes_dev_list, list) {
1067                         if (i == ee_flsh_adapter) {
1068                                 nes_write_indexed(nesdev, sysfs_idx_addr, val);
1069                                 break;
1070                         }
1071                         i++;
1072                 }
1073         }
1074         return strnlen(buf, count);
1075 }
1076
1077
1078 /**
1079  * nes_show_wqm_quanta
1080  */
1081 static ssize_t nes_show_wqm_quanta(struct device_driver *ddp, char *buf)
1082 {
1083         u32 wqm_quanta_value = 0xdead;
1084         u32 i = 0;
1085         struct nes_device *nesdev;
1086
1087         list_for_each_entry(nesdev, &nes_dev_list, list) {
1088                 if (i == ee_flsh_adapter) {
1089                         wqm_quanta_value = nesdev->nesadapter->wqm_quanta;
1090                         break;
1091                 }
1092                 i++;
1093         }
1094
1095         return  snprintf(buf, PAGE_SIZE, "0x%X\n", wqm_quanta);
1096 }
1097
1098
1099 /**
1100  * nes_store_wqm_quanta
1101  */
1102 static ssize_t nes_store_wqm_quanta(struct device_driver *ddp,
1103                                         const char *buf, size_t count)
1104 {
1105         unsigned long wqm_quanta_value;
1106         u32 wqm_config1;
1107         u32 i = 0;
1108         struct nes_device *nesdev;
1109
1110         strict_strtoul(buf, 0, &wqm_quanta_value);
1111         list_for_each_entry(nesdev, &nes_dev_list, list) {
1112                 if (i == ee_flsh_adapter) {
1113                         nesdev->nesadapter->wqm_quanta = wqm_quanta_value;
1114                         wqm_config1 = nes_read_indexed(nesdev,
1115                                                 NES_IDX_WQM_CONFIG1);
1116                         nes_write_indexed(nesdev, NES_IDX_WQM_CONFIG1,
1117                                         ((wqm_quanta_value << 1) |
1118                                         (wqm_config1 & 0x00000001)));
1119                         break;
1120                 }
1121                 i++;
1122         }
1123         return strnlen(buf, count);
1124 }
1125
1126 static DRIVER_ATTR(adapter, S_IRUSR | S_IWUSR,
1127                    nes_show_adapter, nes_store_adapter);
1128 static DRIVER_ATTR(eeprom_cmd, S_IRUSR | S_IWUSR,
1129                    nes_show_ee_cmd, nes_store_ee_cmd);
1130 static DRIVER_ATTR(eeprom_data, S_IRUSR | S_IWUSR,
1131                    nes_show_ee_data, nes_store_ee_data);
1132 static DRIVER_ATTR(flash_cmd, S_IRUSR | S_IWUSR,
1133                    nes_show_flash_cmd, nes_store_flash_cmd);
1134 static DRIVER_ATTR(flash_data, S_IRUSR | S_IWUSR,
1135                    nes_show_flash_data, nes_store_flash_data);
1136 static DRIVER_ATTR(nonidx_addr, S_IRUSR | S_IWUSR,
1137                    nes_show_nonidx_addr, nes_store_nonidx_addr);
1138 static DRIVER_ATTR(nonidx_data, S_IRUSR | S_IWUSR,
1139                    nes_show_nonidx_data, nes_store_nonidx_data);
1140 static DRIVER_ATTR(idx_addr, S_IRUSR | S_IWUSR,
1141                    nes_show_idx_addr, nes_store_idx_addr);
1142 static DRIVER_ATTR(idx_data, S_IRUSR | S_IWUSR,
1143                    nes_show_idx_data, nes_store_idx_data);
1144 static DRIVER_ATTR(wqm_quanta, S_IRUSR | S_IWUSR,
1145                    nes_show_wqm_quanta, nes_store_wqm_quanta);
1146
1147 static int nes_create_driver_sysfs(struct pci_driver *drv)
1148 {
1149         int error;
1150         error  = driver_create_file(&drv->driver, &driver_attr_adapter);
1151         error |= driver_create_file(&drv->driver, &driver_attr_eeprom_cmd);
1152         error |= driver_create_file(&drv->driver, &driver_attr_eeprom_data);
1153         error |= driver_create_file(&drv->driver, &driver_attr_flash_cmd);
1154         error |= driver_create_file(&drv->driver, &driver_attr_flash_data);
1155         error |= driver_create_file(&drv->driver, &driver_attr_nonidx_addr);
1156         error |= driver_create_file(&drv->driver, &driver_attr_nonidx_data);
1157         error |= driver_create_file(&drv->driver, &driver_attr_idx_addr);
1158         error |= driver_create_file(&drv->driver, &driver_attr_idx_data);
1159         error |= driver_create_file(&drv->driver, &driver_attr_wqm_quanta);
1160         return error;
1161 }
1162
1163 static void nes_remove_driver_sysfs(struct pci_driver *drv)
1164 {
1165         driver_remove_file(&drv->driver, &driver_attr_adapter);
1166         driver_remove_file(&drv->driver, &driver_attr_eeprom_cmd);
1167         driver_remove_file(&drv->driver, &driver_attr_eeprom_data);
1168         driver_remove_file(&drv->driver, &driver_attr_flash_cmd);
1169         driver_remove_file(&drv->driver, &driver_attr_flash_data);
1170         driver_remove_file(&drv->driver, &driver_attr_nonidx_addr);
1171         driver_remove_file(&drv->driver, &driver_attr_nonidx_data);
1172         driver_remove_file(&drv->driver, &driver_attr_idx_addr);
1173         driver_remove_file(&drv->driver, &driver_attr_idx_data);
1174         driver_remove_file(&drv->driver, &driver_attr_wqm_quanta);
1175 }
1176
1177 /**
1178  * nes_init_module - module initialization entry point
1179  */
1180 static int __init nes_init_module(void)
1181 {
1182         int retval;
1183         int retval1;
1184
1185         retval = nes_cm_start();
1186         if (retval) {
1187                 printk(KERN_ERR PFX "Unable to start NetEffect iWARP CM.\n");
1188                 return retval;
1189         }
1190         retval = pci_register_driver(&nes_pci_driver);
1191         if (retval >= 0) {
1192                 retval1 = nes_create_driver_sysfs(&nes_pci_driver);
1193                 if (retval1 < 0)
1194                         printk(KERN_ERR PFX "Unable to create NetEffect sys files.\n");
1195         }
1196         return retval;
1197 }
1198
1199
1200 /**
1201  * nes_exit_module - module unload entry point
1202  */
1203 static void __exit nes_exit_module(void)
1204 {
1205         nes_cm_stop();
1206         nes_remove_driver_sysfs(&nes_pci_driver);
1207
1208         pci_unregister_driver(&nes_pci_driver);
1209 }
1210
1211
1212 module_init(nes_init_module);
1213 module_exit(nes_exit_module);