drivers/infiniband/hw/nes/nes.c

   1 /*
   2  * Copyright (c) 2006 - 2009 Intel Corporation.  All rights reserved.
   3  * Copyright (c) 2005 Open Grid Computing, Inc. All rights reserved.
   4  *
   5  * This software is available to you under a choice of one of two
   6  * licenses.  You may choose to be licensed under the terms of the GNU
   7  * General Public License (GPL) Version 2, available from the file
   8  * COPYING in the main directory of this source tree, or the
   9  * OpenIB.org BSD license below:
  10  *
  11  *     Redistribution and use in source and binary forms, with or
  12  *     without modification, are permitted provided that the following
  13  *     conditions are met:
  14  *
  15  *      - Redistributions of source code must retain the above
  16  *        copyright notice, this list of conditions and the following
  17  *        disclaimer.
  18  *
  19  *      - Redistributions in binary form must reproduce the above
  20  *        copyright notice, this list of conditions and the following
  21  *        disclaimer in the documentation and/or other materials
  22  *        provided with the distribution.
  23  *
  24  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  25  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  26  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  27  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  28  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  29  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  30  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  31  * SOFTWARE.
  32  */
  33
  34 #include <linux/module.h>
  35 #include <linux/moduleparam.h>
  36 #include <linux/netdevice.h>
  37 #include <linux/etherdevice.h>
  38 #include <linux/ethtool.h>
  39 #include <linux/mii.h>
  40 #include <linux/if_vlan.h>
  41 #include <linux/crc32.h>
  42 #include <linux/in.h>
  43 #include <linux/fs.h>
  44 #include <linux/init.h>
  45 #include <linux/if_arp.h>
  46 #include <linux/highmem.h>
  47 #include <linux/slab.h>
  48 #include <asm/io.h>
  49 #include <asm/irq.h>
  50 #include <asm/byteorder.h>
  51 #include <rdma/ib_smi.h>
  52 #include <rdma/ib_verbs.h>
  53 #include <rdma/ib_pack.h>
  54 #include <rdma/iw_cm.h>
  55
  56 #include "nes.h"
  57
  58 #include <net/netevent.h>
  59 #include <net/neighbour.h>
  60 #include <linux/route.h>
  61 #include <net/ip_fib.h>
  62
  63 MODULE_AUTHOR("NetEffect");
  64 MODULE_DESCRIPTION("NetEffect RNIC Low-level iWARP Driver");
  65 MODULE_LICENSE("Dual BSD/GPL");
  66 MODULE_VERSION(DRV_VERSION);
  67
  68 int max_mtu = 9000;
  69 int interrupt_mod_interval = 0;
  70
  71
  72 /* Interoperability */
  73 int mpa_version = 1;
  74 module_param(mpa_version, int, 0644);
  75 MODULE_PARM_DESC(mpa_version, "MPA version to be used int MPA Req/Resp (0 or 1)");
  76
  77 /* Interoperability */
  78 int disable_mpa_crc = 0;
  79 module_param(disable_mpa_crc, int, 0644);
  80 MODULE_PARM_DESC(disable_mpa_crc, "Disable checking of MPA CRC");
  81
  82 unsigned int send_first = 0;
  83 module_param(send_first, int, 0644);
  84 MODULE_PARM_DESC(send_first, "Send RDMA Message First on Active Connection");
  85
  86
  87 unsigned int nes_drv_opt = 0;
  88 module_param(nes_drv_opt, int, 0644);
  89 MODULE_PARM_DESC(nes_drv_opt, "Driver option parameters");
  90
  91 unsigned int nes_debug_level = 0;
  92 module_param_named(debug_level, nes_debug_level, uint, 0644);
  93 MODULE_PARM_DESC(debug_level, "Enable debug output level");
  94
  95 unsigned int wqm_quanta = 0x10000;
  96 module_param(wqm_quanta, int, 0644);
  97 MODULE_PARM_DESC(wqm_quanta, "WQM quanta");
  98
  99 static unsigned int limit_maxrdreqsz;
 100 module_param(limit_maxrdreqsz, bool, 0644);
 101 MODULE_PARM_DESC(limit_maxrdreqsz, "Limit max read request size to 256 Bytes");
 102
 103 LIST_HEAD(nes_adapter_list);
 104 static LIST_HEAD(nes_dev_list);
 105
 106 atomic_t qps_destroyed;
 107
 108 static unsigned int ee_flsh_adapter;
 109 static unsigned int sysfs_nonidx_addr;
 110 static unsigned int sysfs_idx_addr;
 111
 112 static struct pci_device_id nes_pci_table[] = {
 113         { PCI_VDEVICE(NETEFFECT, PCI_DEVICE_ID_NETEFFECT_NE020), },
 114         { PCI_VDEVICE(NETEFFECT, PCI_DEVICE_ID_NETEFFECT_NE020_KR), },
 115         {0}
 116 };
 117
 118 MODULE_DEVICE_TABLE(pci, nes_pci_table);
 119
 120 static int nes_inetaddr_event(struct notifier_block *, unsigned long, void *);
 121 static int nes_net_event(struct notifier_block *, unsigned long, void *);
 122 static int nes_notifiers_registered;
 123
 124
 125 static struct notifier_block nes_inetaddr_notifier = {
 126         .notifier_call = nes_inetaddr_event
 127 };
 128
 129 static struct notifier_block nes_net_notifier = {
 130         .notifier_call = nes_net_event
 131 };
 132
 133
 134
 135
 136 /**
 137  * nes_inetaddr_event
 138  */
 139 static int nes_inetaddr_event(struct notifier_block *notifier,
 140                 unsigned long event, void *ptr)
 141 {
 142         struct in_ifaddr *ifa = ptr;
 143         struct net_device *event_netdev = ifa->ifa_dev->dev;
 144         struct nes_device *nesdev;
 145         struct net_device *netdev;
 146         struct nes_vnic *nesvnic;
 147         unsigned int is_bonded;
 148
 149         nes_debug(NES_DBG_NETDEV, "nes_inetaddr_event: ip address %pI4, netmask %pI4.\n",
 150                   &ifa->ifa_address, &ifa->ifa_mask);
 151         list_for_each_entry(nesdev, &nes_dev_list, list) {
 152                 nes_debug(NES_DBG_NETDEV, "Nesdev list entry = 0x%p. (%s)\n",
 153                                 nesdev, nesdev->netdev[0]->name);
 154                 netdev = nesdev->netdev[0];
 155                 nesvnic = netdev_priv(netdev);
 156                 is_bonded = (netdev->master == event_netdev);
 157                 if ((netdev == event_netdev) || is_bonded) {
 158                         if (nesvnic->rdma_enabled == 0) {
 159                                 nes_debug(NES_DBG_NETDEV, "Returning without processing event for %s since"
 160                                                 " RDMA is not enabled.\n",
 161                                                 netdev->name);
 162                                 return NOTIFY_OK;
 163                         }
 164                         /* we have ifa->ifa_address/mask here if we need it */
 165                         switch (event) {
 166                                 case NETDEV_DOWN:
 167                                         nes_debug(NES_DBG_NETDEV, "event:DOWN\n");
 168                                         nes_write_indexed(nesdev,
 169                                                         NES_IDX_DST_IP_ADDR+(0x10*PCI_FUNC(nesdev->pcidev->devfn)), 0);
 170
 171                                         nes_manage_arp_cache(netdev, netdev->dev_addr,
 172                                                         ntohl(nesvnic->local_ipaddr), NES_ARP_DELETE);
 173                                         nesvnic->local_ipaddr = 0;
 174                                         if (is_bonded)
 175                                                 continue;
 176                                         else
 177                                                 return NOTIFY_OK;
 178                                         break;
 179                                 case NETDEV_UP:
 180                                         nes_debug(NES_DBG_NETDEV, "event:UP\n");
 181
 182                                         if (nesvnic->local_ipaddr != 0) {
 183                                                 nes_debug(NES_DBG_NETDEV, "Interface already has local_ipaddr\n");
 184                                                 return NOTIFY_OK;
 185                                         }
 186                                         /* fall through */
 187                                 case NETDEV_CHANGEADDR:
 188                                         /* Add the address to the IP table */
 189                                         if (netdev->master)
 190                                                 nesvnic->local_ipaddr =
 191                                                         ((struct in_device *)netdev->master->ip_ptr)->ifa_list->ifa_address;
 192                                         else
 193                                                 nesvnic->local_ipaddr = ifa->ifa_address;
 194
 195                                         nes_write_indexed(nesdev,
 196                                                         NES_IDX_DST_IP_ADDR+(0x10*PCI_FUNC(nesdev->pcidev->devfn)),
 197                                                         ntohl(nesvnic->local_ipaddr));
 198                                         nes_manage_arp_cache(netdev, netdev->dev_addr,
 199                                                         ntohl(nesvnic->local_ipaddr), NES_ARP_ADD);
 200                                         if (is_bonded)
 201                                                 continue;
 202                                         else
 203                                                 return NOTIFY_OK;
 204                                         break;
 205                                 default:
 206                                         break;
 207                         }
 208                 }
 209         }
 210
 211         return NOTIFY_DONE;
 212 }
 213
 214
 215 /**
 216  * nes_net_event
 217  */
 218 static int nes_net_event(struct notifier_block *notifier,
 219                 unsigned long event, void *ptr)
 220 {
 221         struct neighbour *neigh = ptr;
 222         struct nes_device *nesdev;
 223         struct net_device *netdev;
 224         struct nes_vnic *nesvnic;
 225
 226         switch (event) {
 227                 case NETEVENT_NEIGH_UPDATE:
 228                         list_for_each_entry(nesdev, &nes_dev_list, list) {
 229                                 /* nes_debug(NES_DBG_NETDEV, "Nesdev list entry = 0x%p.\n", nesdev); */
 230                                 netdev = nesdev->netdev[0];
 231                                 nesvnic = netdev_priv(netdev);
 232                                 if (netdev == neigh->dev) {
 233                                         if (nesvnic->rdma_enabled == 0) {
 234                                                 nes_debug(NES_DBG_NETDEV, "Skipping device %s since no RDMA\n",
 235                                                                 netdev->name);
 236                                         } else {
 237                                                 if (neigh->nud_state & NUD_VALID) {
 238                                                         nes_manage_arp_cache(neigh->dev, neigh->ha,
 239                                                                         ntohl(*(__be32 *)neigh->primary_key), NES_ARP_ADD);
 240                                                 } else {
 241                                                         nes_manage_arp_cache(neigh->dev, neigh->ha,
 242                                                                         ntohl(*(__be32 *)neigh->primary_key), NES_ARP_DELETE);
 243                                                 }
 244                                         }
 245                                         return NOTIFY_OK;
 246                                 }
 247                         }
 248                         break;
 249                 default:
 250                         nes_debug(NES_DBG_NETDEV, "NETEVENT_ %lu undefined\n", event);
 251                         break;
 252         }
 253
 254         return NOTIFY_DONE;
 255 }
 256
 257
 258 /**
 259  * nes_add_ref
 260  */
 261 void nes_add_ref(struct ib_qp *ibqp)
 262 {
 263         struct nes_qp *nesqp;
 264
 265         nesqp = to_nesqp(ibqp);
 266         nes_debug(NES_DBG_QP, "Bumping refcount for QP%u.  Pre-inc value = %u\n",
 267                         ibqp->qp_num, atomic_read(&nesqp->refcount));
 268         atomic_inc(&nesqp->refcount);
 269 }
 270
 271 static void nes_cqp_rem_ref_callback(struct nes_device *nesdev, struct nes_cqp_request *cqp_request)
 272 {
 273         unsigned long flags;
 274         struct nes_qp *nesqp = cqp_request->cqp_callback_pointer;
 275         struct nes_adapter *nesadapter = nesdev->nesadapter;
 276
 277         atomic_inc(&qps_destroyed);
 278
 279         /* Free the control structures */
 280
 281         if (nesqp->pbl_vbase) {
 282                 pci_free_consistent(nesdev->pcidev, nesqp->qp_mem_size,
 283                                 nesqp->hwqp.q2_vbase, nesqp->hwqp.q2_pbase);
 284                 spin_lock_irqsave(&nesadapter->pbl_lock, flags);
 285                 nesadapter->free_256pbl++;
 286                 spin_unlock_irqrestore(&nesadapter->pbl_lock, flags);
 287                 pci_free_consistent(nesdev->pcidev, 256, nesqp->pbl_vbase, nesqp->pbl_pbase);
 288                 nesqp->pbl_vbase = NULL;
 289
 290         } else {
 291                 pci_free_consistent(nesdev->pcidev, nesqp->qp_mem_size,
 292                                 nesqp->hwqp.sq_vbase, nesqp->hwqp.sq_pbase);
 293         }
 294         nes_free_resource(nesadapter, nesadapter->allocated_qps, nesqp->hwqp.qp_id);
 295
 296         nesadapter->qp_table[nesqp->hwqp.qp_id-NES_FIRST_QPN] = NULL;
 297         kfree(nesqp->allocated_buffer);
 298
 299 }
 300
 301 /**
 302  * nes_rem_ref
 303  */
 304 void nes_rem_ref(struct ib_qp *ibqp)
 305 {
 306         u64 u64temp;
 307         struct nes_qp *nesqp;
 308         struct nes_vnic *nesvnic = to_nesvnic(ibqp->device);
 309         struct nes_device *nesdev = nesvnic->nesdev;
 310         struct nes_hw_cqp_wqe *cqp_wqe;
 311         struct nes_cqp_request *cqp_request;
 312         u32 opcode;
 313
 314         nesqp = to_nesqp(ibqp);
 315
 316         if (atomic_read(&nesqp->refcount) == 0) {
 317                 printk(KERN_INFO PFX "%s: Reference count already 0 for QP%d, last aeq = 0x%04X.\n",
 318                                 __func__, ibqp->qp_num, nesqp->last_aeq);
 319                 BUG();
 320         }
 321
 322         if (atomic_dec_and_test(&nesqp->refcount)) {
 323                 /* Destroy the QP */
 324                 cqp_request = nes_get_cqp_request(nesdev);
 325                 if (cqp_request == NULL) {
 326                         nes_debug(NES_DBG_QP, "Failed to get a cqp_request.\n");
 327                         return;
 328                 }
 329                 cqp_request->waiting = 0;
 330                 cqp_request->callback = 1;
 331                 cqp_request->cqp_callback = nes_cqp_rem_ref_callback;
 332                 cqp_request->cqp_callback_pointer = nesqp;
 333                 cqp_wqe = &cqp_request->cqp_wqe;
 334
 335                 nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
 336                 opcode = NES_CQP_DESTROY_QP | NES_CQP_QP_TYPE_IWARP;
 337
 338                 if (nesqp->hte_added) {
 339                         opcode  |= NES_CQP_QP_DEL_HTE;
 340                         nesqp->hte_added = 0;
 341                 }
 342                 set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, opcode);
 343                 set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX, nesqp->hwqp.qp_id);
 344                 u64temp = (u64)nesqp->nesqp_context_pbase;
 345                 set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_QP_WQE_CONTEXT_LOW_IDX, u64temp);
 346                 nes_post_cqp_request(nesdev, cqp_request);
 347         }
 348 }
 349
 350
 351 /**
 352  * nes_get_qp
 353  */
 354 struct ib_qp *nes_get_qp(struct ib_device *device, int qpn)
 355 {
 356         struct nes_vnic *nesvnic = to_nesvnic(device);
 357         struct nes_device *nesdev = nesvnic->nesdev;
 358         struct nes_adapter *nesadapter = nesdev->nesadapter;
 359
 360         if ((qpn < NES_FIRST_QPN) || (qpn >= (NES_FIRST_QPN + nesadapter->max_qp)))
 361                 return NULL;
 362
 363         return &nesadapter->qp_table[qpn - NES_FIRST_QPN]->ibqp;
 364 }
 365
 366
 367 /**
 368  * nes_print_macaddr
 369  */
 370 static void nes_print_macaddr(struct net_device *netdev)
 371 {
 372         nes_debug(NES_DBG_INIT, "%s: %pM, IRQ %u\n",
 373                   netdev->name, netdev->dev_addr, netdev->irq);
 374 }
 375
 376 /**
 377  * nes_interrupt - handle interrupts
 378  */
 379 static irqreturn_t nes_interrupt(int irq, void *dev_id)
 380 {
 381         struct nes_device *nesdev = (struct nes_device *)dev_id;
 382         int handled = 0;
 383         u32 int_mask;
 384         u32 int_req;
 385         u32 int_stat;
 386         u32 intf_int_stat;
 387         u32 timer_stat;
 388
 389         if (nesdev->msi_enabled) {
 390                 /* No need to read the interrupt pending register if msi is enabled */
 391                 handled = 1;
 392         } else {
 393                 if (unlikely(nesdev->nesadapter->hw_rev == NE020_REV)) {
 394                         /* Master interrupt enable provides synchronization for kicking off bottom half
 395                           when interrupt sharing is going on */
 396                         int_mask = nes_read32(nesdev->regs + NES_INT_MASK);
 397                         if (int_mask & 0x80000000) {
 398                                 /* Check interrupt status to see if this might be ours */
 399                                 int_stat = nes_read32(nesdev->regs + NES_INT_STAT);
 400                                 int_req = nesdev->int_req;
 401                                 if (int_stat&int_req) {
 402                                         /* if interesting CEQ or AEQ is pending, claim the interrupt */
 403                                         if ((int_stat&int_req) & (~(NES_INT_TIMER|NES_INT_INTF))) {
 404                                                 handled = 1;
 405                                         } else {
 406                                                 if (((int_stat & int_req) & NES_INT_TIMER) == NES_INT_TIMER) {
 407                                                         /* Timer might be running but might be for another function */
 408                                                         timer_stat = nes_read32(nesdev->regs + NES_TIMER_STAT);
 409                                                         if ((timer_stat & nesdev->timer_int_req) != 0) {
 410                                                                 handled = 1;
 411                                                         }
 412                                                 }
 413                                                 if ((((int_stat & int_req) & NES_INT_INTF) == NES_INT_INTF) &&
 414                                                                 (handled == 0)) {
 415                                                         intf_int_stat = nes_read32(nesdev->regs+NES_INTF_INT_STAT);
 416                                                         if ((intf_int_stat & nesdev->intf_int_req) != 0) {
 417                                                                 handled = 1;
 418                                                         }
 419                                                 }
 420                                         }
 421                                         if (handled) {
 422                                                 nes_write32(nesdev->regs+NES_INT_MASK, int_mask & (~0x80000000));
 423                                                 int_mask = nes_read32(nesdev->regs+NES_INT_MASK);
 424                                                 /* Save off the status to save an additional read */
 425                                                 nesdev->int_stat = int_stat;
 426                                                 nesdev->napi_isr_ran = 1;
 427                                         }
 428                                 }
 429                         }
 430                 } else {
 431                         handled = nes_read32(nesdev->regs+NES_INT_PENDING);
 432                 }
 433         }
 434
 435         if (handled) {
 436
 437                 if (nes_napi_isr(nesdev) == 0) {
 438                         tasklet_schedule(&nesdev->dpc_tasklet);
 439
 440                 }
 441                 return IRQ_HANDLED;
 442         } else {
 443                 return IRQ_NONE;
 444         }
 445 }
 446
 447
 448 /**
 449  * nes_probe - Device initialization
 450  */
 451 static int __devinit nes_probe(struct pci_dev *pcidev, const struct pci_device_id *ent)
 452 {
 453         struct net_device *netdev = NULL;
 454         struct nes_device *nesdev = NULL;
 455         int ret = 0;
 456         void __iomem *mmio_regs = NULL;
 457         u8 hw_rev;
 458
 459         assert(pcidev != NULL);
 460         assert(ent != NULL);
 461
 462         printk(KERN_INFO PFX "NetEffect RNIC driver v%s loading. (%s)\n",
 463                         DRV_VERSION, pci_name(pcidev));
 464
 465         ret = pci_enable_device(pcidev);
 466         if (ret) {
 467                 printk(KERN_ERR PFX "Unable to enable PCI device. (%s)\n", pci_name(pcidev));
 468                 goto bail0;
 469         }
 470
 471         nes_debug(NES_DBG_INIT, "BAR0 (@0x%08lX) size = 0x%lX bytes\n",
 472                         (long unsigned int)pci_resource_start(pcidev, BAR_0),
 473                         (long unsigned int)pci_resource_len(pcidev, BAR_0));
 474         nes_debug(NES_DBG_INIT, "BAR1 (@0x%08lX) size = 0x%lX bytes\n",
 475                         (long unsigned int)pci_resource_start(pcidev, BAR_1),
 476                         (long unsigned int)pci_resource_len(pcidev, BAR_1));
 477
 478         /* Make sure PCI base addr are MMIO */
 479         if (!(pci_resource_flags(pcidev, BAR_0) & IORESOURCE_MEM) ||
 480                         !(pci_resource_flags(pcidev, BAR_1) & IORESOURCE_MEM)) {
 481                 printk(KERN_ERR PFX "PCI regions not an MMIO resource\n");
 482                 ret = -ENODEV;
 483                 goto bail1;
 484         }
 485
 486         /* Reserve PCI I/O and memory resources */
 487         ret = pci_request_regions(pcidev, DRV_NAME);
 488         if (ret) {
 489                 printk(KERN_ERR PFX "Unable to request regions. (%s)\n", pci_name(pcidev));
 490                 goto bail1;
 491         }
 492
 493         if ((sizeof(dma_addr_t) > 4)) {
 494                 ret = pci_set_dma_mask(pcidev, DMA_BIT_MASK(64));
 495                 if (ret < 0) {
 496                         printk(KERN_ERR PFX "64b DMA mask configuration failed\n");
 497                         goto bail2;
 498                 }
 499                 ret = pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(64));
 500                 if (ret) {
 501                         printk(KERN_ERR PFX "64b DMA consistent mask configuration failed\n");
 502                         goto bail2;
 503                 }
 504         } else {
 505                 ret = pci_set_dma_mask(pcidev, DMA_BIT_MASK(32));
 506                 if (ret < 0) {
 507                         printk(KERN_ERR PFX "32b DMA mask configuration failed\n");
 508                         goto bail2;
 509                 }
 510                 ret = pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(32));
 511                 if (ret) {
 512                         printk(KERN_ERR PFX "32b DMA consistent mask configuration failed\n");
 513                         goto bail2;
 514                 }
 515         }
 516
 517         pci_set_master(pcidev);
 518
 519         /* Allocate hardware structure */
 520         nesdev = kzalloc(sizeof(struct nes_device), GFP_KERNEL);
 521         if (!nesdev) {
 522                 printk(KERN_ERR PFX "%s: Unable to alloc hardware struct\n", pci_name(pcidev));
 523                 ret = -ENOMEM;
 524                 goto bail2;
 525         }
 526
 527         nes_debug(NES_DBG_INIT, "Allocated nes device at %p\n", nesdev);
 528         nesdev->pcidev = pcidev;
 529         pci_set_drvdata(pcidev, nesdev);
 530
 531         pci_read_config_byte(pcidev, 0x0008, &hw_rev);
 532         nes_debug(NES_DBG_INIT, "hw_rev=%u\n", hw_rev);
 533
 534         spin_lock_init(&nesdev->indexed_regs_lock);
 535
 536         /* Remap the PCI registers in adapter BAR0 to kernel VA space */
 537         mmio_regs = ioremap_nocache(pci_resource_start(pcidev, BAR_0),
 538                                     pci_resource_len(pcidev, BAR_0));
 539         if (mmio_regs == NULL) {
 540                 printk(KERN_ERR PFX "Unable to remap BAR0\n");
 541                 ret = -EIO;
 542                 goto bail3;
 543         }
 544         nesdev->regs = mmio_regs;
 545         nesdev->index_reg = 0x50 + (PCI_FUNC(pcidev->devfn)*8) + mmio_regs;
 546
 547         /* Ensure interrupts are disabled */
 548         nes_write32(nesdev->regs+NES_INT_MASK, 0x7fffffff);
 549
 550         if (nes_drv_opt & NES_DRV_OPT_ENABLE_MSI) {
 551                 if (!pci_enable_msi(nesdev->pcidev)) {
 552                         nesdev->msi_enabled = 1;
 553                         nes_debug(NES_DBG_INIT, "MSI is enabled for device %s\n",
 554                                         pci_name(pcidev));
 555                 } else {
 556                         nes_debug(NES_DBG_INIT, "MSI is disabled by linux for device %s\n",
 557                                         pci_name(pcidev));
 558                 }
 559         } else {
 560                 nes_debug(NES_DBG_INIT, "MSI not requested due to driver options for device %s\n",
 561                                 pci_name(pcidev));
 562         }
 563
 564         nesdev->csr_start = pci_resource_start(nesdev->pcidev, BAR_0);
 565         nesdev->doorbell_region = pci_resource_start(nesdev->pcidev, BAR_1);
 566
 567         /* Init the adapter */
 568         nesdev->nesadapter = nes_init_adapter(nesdev, hw_rev);
 569         if (!nesdev->nesadapter) {
 570                 printk(KERN_ERR PFX "Unable to initialize adapter.\n");
 571                 ret = -ENOMEM;
 572                 goto bail5;
 573         }
 574         nesdev->nesadapter->et_rx_coalesce_usecs_irq = interrupt_mod_interval;
 575         nesdev->nesadapter->wqm_quanta = wqm_quanta;
 576
 577         /* nesdev->base_doorbell_index =
 578                         nesdev->nesadapter->pd_config_base[PCI_FUNC(nesdev->pcidev->devfn)]; */
 579         nesdev->base_doorbell_index = 1;
 580         nesdev->doorbell_start = nesdev->nesadapter->doorbell_start;
 581         if (nesdev->nesadapter->phy_type[0] == NES_PHY_TYPE_PUMA_1G) {
 582                 switch (PCI_FUNC(nesdev->pcidev->devfn) %
 583                         nesdev->nesadapter->port_count) {
 584                 case 1:
 585                         nesdev->mac_index = 2;
 586                         break;
 587                 case 2:
 588                         nesdev->mac_index = 1;
 589                         break;
 590                 case 3:
 591                         nesdev->mac_index = 3;
 592                         break;
 593                 case 0:
 594                 default:
 595                         nesdev->mac_index = 0;
 596                 }
 597         } else {
 598                 nesdev->mac_index = PCI_FUNC(nesdev->pcidev->devfn) %
 599                                                 nesdev->nesadapter->port_count;
 600         }
 601
 602         if ((limit_maxrdreqsz ||
 603              ((nesdev->nesadapter->phy_type[0] == NES_PHY_TYPE_GLADIUS) &&
 604               (hw_rev == NE020_REV1))) &&
 605             (pcie_get_readrq(pcidev) > 256)) {
 606                 if (pcie_set_readrq(pcidev, 256))
 607                         printk(KERN_ERR PFX "Unable to set max read request"
 608                                 " to 256 bytes\n");
 609                 else
 610                         nes_debug(NES_DBG_INIT, "Max read request size set"
 611                                 " to 256 bytes\n");
 612         }
 613
 614         tasklet_init(&nesdev->dpc_tasklet, nes_dpc, (unsigned long)nesdev);
 615
 616         /* bring up the Control QP */
 617         if (nes_init_cqp(nesdev)) {
 618                 ret = -ENODEV;
 619                 goto bail6;
 620         }
 621
 622         /* Arm the CCQ */
 623         nes_write32(nesdev->regs+NES_CQE_ALLOC, NES_CQE_ALLOC_NOTIFY_NEXT |
 624                         PCI_FUNC(nesdev->pcidev->devfn));
 625         nes_read32(nesdev->regs+NES_CQE_ALLOC);
 626
 627         /* Enable the interrupts */
 628         nesdev->int_req = (0x101 << PCI_FUNC(nesdev->pcidev->devfn)) |
 629                         (1 << (PCI_FUNC(nesdev->pcidev->devfn)+16));
 630         if (PCI_FUNC(nesdev->pcidev->devfn) < 4) {
 631                 nesdev->int_req |= (1 << (PCI_FUNC(nesdev->mac_index)+24));
 632         }
 633
 634         /* TODO: This really should be the first driver to load, not function 0 */
 635         if (PCI_FUNC(nesdev->pcidev->devfn) == 0) {
 636                 /* pick up PCI and critical errors if the first driver to load */
 637                 nesdev->intf_int_req = NES_INTF_INT_PCIERR | NES_INTF_INT_CRITERR;
 638                 nesdev->int_req |= NES_INT_INTF;
 639         } else {
 640                 nesdev->intf_int_req = 0;
 641         }
 642         nesdev->intf_int_req |= (1 << (PCI_FUNC(nesdev->pcidev->devfn)+16));
 643         nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS0, 0);
 644         nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS1, 0);
 645         nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS2, 0x00001265);
 646         nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS4, 0x18021804);
 647
 648         nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS3, 0x17801790);
 649
 650         /* deal with both periodic and one_shot */
 651         nesdev->timer_int_req = 0x101 << PCI_FUNC(nesdev->pcidev->devfn);
 652         nesdev->nesadapter->timer_int_req |= nesdev->timer_int_req;
 653         nes_debug(NES_DBG_INIT, "setting int_req for function %u, nesdev = 0x%04X, adapter = 0x%04X\n",
 654                         PCI_FUNC(nesdev->pcidev->devfn),
 655                         nesdev->timer_int_req, nesdev->nesadapter->timer_int_req);
 656
 657         nes_write32(nesdev->regs+NES_INTF_INT_MASK, ~(nesdev->intf_int_req));
 658
 659         list_add_tail(&nesdev->list, &nes_dev_list);
 660
 661         /* Request an interrupt line for the driver */
 662         ret = request_irq(pcidev->irq, nes_interrupt, IRQF_SHARED, DRV_NAME, nesdev);
 663         if (ret) {
 664                 printk(KERN_ERR PFX "%s: requested IRQ %u is busy\n",
 665                                 pci_name(pcidev), pcidev->irq);
 666                 goto bail65;
 667         }
 668
 669         nes_write32(nesdev->regs+NES_INT_MASK, ~nesdev->int_req);
 670
 671         if (nes_notifiers_registered == 0) {
 672                 register_inetaddr_notifier(&nes_inetaddr_notifier);
 673                 register_netevent_notifier(&nes_net_notifier);
 674         }
 675         nes_notifiers_registered++;
 676
 677         /* Initialize network devices */
 678         if ((netdev = nes_netdev_init(nesdev, mmio_regs)) == NULL)
 679                 goto bail7;
 680
 681         /* Register network device */
 682         ret = register_netdev(netdev);
 683         if (ret) {
 684                 printk(KERN_ERR PFX "Unable to register netdev, ret = %d\n", ret);
 685                 nes_netdev_destroy(netdev);
 686                 goto bail7;
 687         }
 688
 689         nes_print_macaddr(netdev);
 690
 691         nesdev->netdev_count++;
 692         nesdev->nesadapter->netdev_count++;
 693
 694         printk(KERN_ERR PFX "%s: NetEffect RNIC driver successfully loaded.\n",
 695                         pci_name(pcidev));
 696         return 0;
 697
 698         bail7:
 699         printk(KERN_ERR PFX "bail7\n");
 700         while (nesdev->netdev_count > 0) {
 701                 nesdev->netdev_count--;
 702                 nesdev->nesadapter->netdev_count--;
 703
 704                 unregister_netdev(nesdev->netdev[nesdev->netdev_count]);
 705                 nes_netdev_destroy(nesdev->netdev[nesdev->netdev_count]);
 706         }
 707
 708         nes_debug(NES_DBG_INIT, "netdev_count=%d, nesadapter->netdev_count=%d\n",
 709                         nesdev->netdev_count, nesdev->nesadapter->netdev_count);
 710
 711         nes_notifiers_registered--;
 712         if (nes_notifiers_registered == 0) {
 713                 unregister_netevent_notifier(&nes_net_notifier);
 714                 unregister_inetaddr_notifier(&nes_inetaddr_notifier);
 715         }
 716
 717         list_del(&nesdev->list);
 718         nes_destroy_cqp(nesdev);
 719
 720         bail65:
 721         printk(KERN_ERR PFX "bail65\n");
 722         free_irq(pcidev->irq, nesdev);
 723         if (nesdev->msi_enabled) {
 724                 pci_disable_msi(pcidev);
 725         }
 726         bail6:
 727         printk(KERN_ERR PFX "bail6\n");
 728         tasklet_kill(&nesdev->dpc_tasklet);
 729         /* Deallocate the Adapter Structure */
 730         nes_destroy_adapter(nesdev->nesadapter);
 731
 732         bail5:
 733         printk(KERN_ERR PFX "bail5\n");
 734         iounmap(nesdev->regs);
 735
 736         bail3:
 737         printk(KERN_ERR PFX "bail3\n");
 738         kfree(nesdev);
 739
 740         bail2:
 741         pci_release_regions(pcidev);
 742
 743         bail1:
 744         pci_disable_device(pcidev);
 745
 746         bail0:
 747         return ret;
 748 }
 749
 750
 751 /**
 752  * nes_remove - unload from kernel
 753  */
 754 static void __devexit nes_remove(struct pci_dev *pcidev)
 755 {
 756         struct nes_device *nesdev = pci_get_drvdata(pcidev);
 757         struct net_device *netdev;
 758         int netdev_index = 0;
 759
 760                 if (nesdev->netdev_count) {
 761                         netdev = nesdev->netdev[netdev_index];
 762                         if (netdev) {
 763                                 netif_stop_queue(netdev);
 764                                 unregister_netdev(netdev);
 765                                 nes_netdev_destroy(netdev);
 766
 767                                 nesdev->netdev[netdev_index] = NULL;
 768                                 nesdev->netdev_count--;
 769                                 nesdev->nesadapter->netdev_count--;
 770                         }
 771                 }
 772
 773         nes_notifiers_registered--;
 774         if (nes_notifiers_registered == 0) {
 775                 unregister_netevent_notifier(&nes_net_notifier);
 776                 unregister_inetaddr_notifier(&nes_inetaddr_notifier);
 777         }
 778
 779         list_del(&nesdev->list);
 780         nes_destroy_cqp(nesdev);
 781
 782         free_irq(pcidev->irq, nesdev);
 783         tasklet_kill(&nesdev->dpc_tasklet);
 784
 785         /* Deallocate the Adapter Structure */
 786         nes_destroy_adapter(nesdev->nesadapter);
 787
 788         if (nesdev->msi_enabled) {
 789                 pci_disable_msi(pcidev);
 790         }
 791
 792         iounmap(nesdev->regs);
 793         kfree(nesdev);
 794
 795         /* nes_debug(NES_DBG_SHUTDOWN, "calling pci_release_regions.\n"); */
 796         pci_release_regions(pcidev);
 797         pci_disable_device(pcidev);
 798         pci_set_drvdata(pcidev, NULL);
 799 }
 800
 801
 802 static struct pci_driver nes_pci_driver = {
 803         .name = DRV_NAME,
 804         .id_table = nes_pci_table,
 805         .probe = nes_probe,
 806         .remove = __devexit_p(nes_remove),
 807 };
 808
 809 static ssize_t nes_show_adapter(struct device_driver *ddp, char *buf)
 810 {
 811         unsigned int  devfn = 0xffffffff;
 812         unsigned char bus_number = 0xff;
 813         unsigned int  i = 0;
 814         struct nes_device *nesdev;
 815
 816         list_for_each_entry(nesdev, &nes_dev_list, list) {
 817                 if (i == ee_flsh_adapter) {
 818                         devfn = nesdev->pcidev->devfn;
 819                         bus_number = nesdev->pcidev->bus->number;
 820                         break;
 821                 }
 822                 i++;
 823         }
 824
 825         return snprintf(buf, PAGE_SIZE, "%x:%x\n", bus_number, devfn);
 826 }
 827
 828 static ssize_t nes_store_adapter(struct device_driver *ddp,
 829         const char *buf, size_t count)
 830 {
 831         char *p = (char *)buf;
 832
 833         ee_flsh_adapter = simple_strtoul(p, &p, 10);
 834         return strnlen(buf, count);
 835 }
 836
 837 static ssize_t nes_show_ee_cmd(struct device_driver *ddp, char *buf)
 838 {
 839         u32 eeprom_cmd = 0xdead;
 840         u32 i = 0;
 841         struct nes_device *nesdev;
 842
 843         list_for_each_entry(nesdev, &nes_dev_list, list) {
 844                 if (i == ee_flsh_adapter) {
 845                         eeprom_cmd = nes_read32(nesdev->regs + NES_EEPROM_COMMAND);
 846                         break;
 847                 }
 848                 i++;
 849         }
 850         return snprintf(buf, PAGE_SIZE, "0x%x\n", eeprom_cmd);
 851 }
 852
 853 static ssize_t nes_store_ee_cmd(struct device_driver *ddp,
 854         const char *buf, size_t count)
 855 {
 856         char *p = (char *)buf;
 857         u32 val;
 858         u32 i = 0;
 859         struct nes_device *nesdev;
 860
 861         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
 862                 val = simple_strtoul(p, &p, 16);
 863                 list_for_each_entry(nesdev, &nes_dev_list, list) {
 864                         if (i == ee_flsh_adapter) {
 865                                 nes_write32(nesdev->regs + NES_EEPROM_COMMAND, val);
 866                                 break;
 867                         }
 868                         i++;
 869                 }
 870         }
 871         return strnlen(buf, count);
 872 }
 873
 874 static ssize_t nes_show_ee_data(struct device_driver *ddp, char *buf)
 875 {
 876         u32 eeprom_data = 0xdead;
 877         u32 i = 0;
 878         struct nes_device *nesdev;
 879
 880         list_for_each_entry(nesdev, &nes_dev_list, list) {
 881                 if (i == ee_flsh_adapter) {
 882                         eeprom_data = nes_read32(nesdev->regs + NES_EEPROM_DATA);
 883                         break;
 884                 }
 885                 i++;
 886         }
 887
 888         return  snprintf(buf, PAGE_SIZE, "0x%x\n", eeprom_data);
 889 }
 890
 891 static ssize_t nes_store_ee_data(struct device_driver *ddp,
 892         const char *buf, size_t count)
 893 {
 894         char *p = (char *)buf;
 895         u32 val;
 896         u32 i = 0;
 897         struct nes_device *nesdev;
 898
 899         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
 900                 val = simple_strtoul(p, &p, 16);
 901                 list_for_each_entry(nesdev, &nes_dev_list, list) {
 902                         if (i == ee_flsh_adapter) {
 903                                 nes_write32(nesdev->regs + NES_EEPROM_DATA, val);
 904                                 break;
 905                         }
 906                         i++;
 907                 }
 908         }
 909         return strnlen(buf, count);
 910 }
 911
 912 static ssize_t nes_show_flash_cmd(struct device_driver *ddp, char *buf)
 913 {
 914         u32 flash_cmd = 0xdead;
 915         u32 i = 0;
 916         struct nes_device *nesdev;
 917
 918         list_for_each_entry(nesdev, &nes_dev_list, list) {
 919                 if (i == ee_flsh_adapter) {
 920                         flash_cmd = nes_read32(nesdev->regs + NES_FLASH_COMMAND);
 921                         break;
 922                 }
 923                 i++;
 924         }
 925
 926         return  snprintf(buf, PAGE_SIZE, "0x%x\n", flash_cmd);
 927 }
 928
 929 static ssize_t nes_store_flash_cmd(struct device_driver *ddp,
 930         const char *buf, size_t count)
 931 {
 932         char *p = (char *)buf;
 933         u32 val;
 934         u32 i = 0;
 935         struct nes_device *nesdev;
 936
 937         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
 938                 val = simple_strtoul(p, &p, 16);
 939                 list_for_each_entry(nesdev, &nes_dev_list, list) {
 940                         if (i == ee_flsh_adapter) {
 941                                 nes_write32(nesdev->regs + NES_FLASH_COMMAND, val);
 942                                 break;
 943                         }
 944                         i++;
 945                 }
 946         }
 947         return strnlen(buf, count);
 948 }
 949
 950 static ssize_t nes_show_flash_data(struct device_driver *ddp, char *buf)
 951 {
 952         u32 flash_data = 0xdead;
 953         u32 i = 0;
 954         struct nes_device *nesdev;
 955
 956         list_for_each_entry(nesdev, &nes_dev_list, list) {
 957                 if (i == ee_flsh_adapter) {
 958                         flash_data = nes_read32(nesdev->regs + NES_FLASH_DATA);
 959                         break;
 960                 }
 961                 i++;
 962         }
 963
 964         return  snprintf(buf, PAGE_SIZE, "0x%x\n", flash_data);
 965 }
 966
 967 static ssize_t nes_store_flash_data(struct device_driver *ddp,
 968         const char *buf, size_t count)
 969 {
 970         char *p = (char *)buf;
 971         u32 val;
 972         u32 i = 0;
 973         struct nes_device *nesdev;
 974
 975         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
 976                 val = simple_strtoul(p, &p, 16);
 977                 list_for_each_entry(nesdev, &nes_dev_list, list) {
 978                         if (i == ee_flsh_adapter) {
 979                                 nes_write32(nesdev->regs + NES_FLASH_DATA, val);
 980                                 break;
 981                         }
 982                         i++;
 983                 }
 984         }
 985         return strnlen(buf, count);
 986 }
 987
 988 static ssize_t nes_show_nonidx_addr(struct device_driver *ddp, char *buf)
 989 {
 990         return  snprintf(buf, PAGE_SIZE, "0x%x\n", sysfs_nonidx_addr);
 991 }
 992
 993 static ssize_t nes_store_nonidx_addr(struct device_driver *ddp,
 994         const char *buf, size_t count)
 995 {
 996         char *p = (char *)buf;
 997
 998         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X')
 999                 sysfs_nonidx_addr = simple_strtoul(p, &p, 16);
1000
1001         return strnlen(buf, count);
1002 }
1003
1004 static ssize_t nes_show_nonidx_data(struct device_driver *ddp, char *buf)
1005 {
1006         u32 nonidx_data = 0xdead;
1007         u32 i = 0;
1008         struct nes_device *nesdev;
1009
1010         list_for_each_entry(nesdev, &nes_dev_list, list) {
1011                 if (i == ee_flsh_adapter) {
1012                         nonidx_data = nes_read32(nesdev->regs + sysfs_nonidx_addr);
1013                         break;
1014                 }
1015                 i++;
1016         }
1017
1018         return  snprintf(buf, PAGE_SIZE, "0x%x\n", nonidx_data);
1019 }
1020
1021 static ssize_t nes_store_nonidx_data(struct device_driver *ddp,
1022         const char *buf, size_t count)
1023 {
1024         char *p = (char *)buf;
1025         u32 val;
1026         u32 i = 0;
1027         struct nes_device *nesdev;
1028
1029         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
1030                 val = simple_strtoul(p, &p, 16);
1031                 list_for_each_entry(nesdev, &nes_dev_list, list) {
1032                         if (i == ee_flsh_adapter) {
1033                                 nes_write32(nesdev->regs + sysfs_nonidx_addr, val);
1034                                 break;
1035                         }
1036                         i++;
1037                 }
1038         }
1039         return strnlen(buf, count);
1040 }
1041
1042 static ssize_t nes_show_idx_addr(struct device_driver *ddp, char *buf)
1043 {
1044         return  snprintf(buf, PAGE_SIZE, "0x%x\n", sysfs_idx_addr);
1045 }
1046
1047 static ssize_t nes_store_idx_addr(struct device_driver *ddp,
1048         const char *buf, size_t count)
1049 {
1050         char *p = (char *)buf;
1051
1052         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X')
1053                 sysfs_idx_addr = simple_strtoul(p, &p, 16);
1054
1055         return strnlen(buf, count);
1056 }
1057
1058 static ssize_t nes_show_idx_data(struct device_driver *ddp, char *buf)
1059 {
1060         u32 idx_data = 0xdead;
1061         u32 i = 0;
1062         struct nes_device *nesdev;
1063
1064         list_for_each_entry(nesdev, &nes_dev_list, list) {
1065                 if (i == ee_flsh_adapter) {
1066                         idx_data = nes_read_indexed(nesdev, sysfs_idx_addr);
1067                         break;
1068                 }
1069                 i++;
1070         }
1071
1072         return  snprintf(buf, PAGE_SIZE, "0x%x\n", idx_data);
1073 }
1074
1075 static ssize_t nes_store_idx_data(struct device_driver *ddp,
1076         const char *buf, size_t count)
1077 {
1078         char *p = (char *)buf;
1079         u32 val;
1080         u32 i = 0;
1081         struct nes_device *nesdev;
1082
1083         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
1084                 val = simple_strtoul(p, &p, 16);
1085                 list_for_each_entry(nesdev, &nes_dev_list, list) {
1086                         if (i == ee_flsh_adapter) {
1087                                 nes_write_indexed(nesdev, sysfs_idx_addr, val);
1088                                 break;
1089                         }
1090                         i++;
1091                 }
1092         }
1093         return strnlen(buf, count);
1094 }
1095
1096
1097 /**
1098  * nes_show_wqm_quanta
1099  */
1100 static ssize_t nes_show_wqm_quanta(struct device_driver *ddp, char *buf)
1101 {
1102         u32 wqm_quanta_value = 0xdead;
1103         u32 i = 0;
1104         struct nes_device *nesdev;
1105
1106         list_for_each_entry(nesdev, &nes_dev_list, list) {
1107                 if (i == ee_flsh_adapter) {
1108                         wqm_quanta_value = nesdev->nesadapter->wqm_quanta;
1109                         break;
1110                 }
1111                 i++;
1112         }
1113
1114         return  snprintf(buf, PAGE_SIZE, "0x%X\n", wqm_quanta_value);
1115 }
1116
1117
1118 /**
1119  * nes_store_wqm_quanta
1120  */
1121 static ssize_t nes_store_wqm_quanta(struct device_driver *ddp,
1122                                         const char *buf, size_t count)
1123 {
1124         unsigned long wqm_quanta_value;
1125         u32 wqm_config1;
1126         u32 i = 0;
1127         struct nes_device *nesdev;
1128
1129         strict_strtoul(buf, 0, &wqm_quanta_value);
1130         list_for_each_entry(nesdev, &nes_dev_list, list) {
1131                 if (i == ee_flsh_adapter) {
1132                         nesdev->nesadapter->wqm_quanta = wqm_quanta_value;
1133                         wqm_config1 = nes_read_indexed(nesdev,
1134                                                 NES_IDX_WQM_CONFIG1);
1135                         nes_write_indexed(nesdev, NES_IDX_WQM_CONFIG1,
1136                                         ((wqm_quanta_value << 1) |
1137                                         (wqm_config1 & 0x00000001)));
1138                         break;
1139                 }
1140                 i++;
1141         }
1142         return strnlen(buf, count);
1143 }
1144
1145 static DRIVER_ATTR(adapter, S_IRUSR | S_IWUSR,
1146                    nes_show_adapter, nes_store_adapter);
1147 static DRIVER_ATTR(eeprom_cmd, S_IRUSR | S_IWUSR,
1148                    nes_show_ee_cmd, nes_store_ee_cmd);
1149 static DRIVER_ATTR(eeprom_data, S_IRUSR | S_IWUSR,
1150                    nes_show_ee_data, nes_store_ee_data);
1151 static DRIVER_ATTR(flash_cmd, S_IRUSR | S_IWUSR,
1152                    nes_show_flash_cmd, nes_store_flash_cmd);
1153 static DRIVER_ATTR(flash_data, S_IRUSR | S_IWUSR,
1154                    nes_show_flash_data, nes_store_flash_data);
1155 static DRIVER_ATTR(nonidx_addr, S_IRUSR | S_IWUSR,
1156                    nes_show_nonidx_addr, nes_store_nonidx_addr);
1157 static DRIVER_ATTR(nonidx_data, S_IRUSR | S_IWUSR,
1158                    nes_show_nonidx_data, nes_store_nonidx_data);
1159 static DRIVER_ATTR(idx_addr, S_IRUSR | S_IWUSR,
1160                    nes_show_idx_addr, nes_store_idx_addr);
1161 static DRIVER_ATTR(idx_data, S_IRUSR | S_IWUSR,
1162                    nes_show_idx_data, nes_store_idx_data);
1163 static DRIVER_ATTR(wqm_quanta, S_IRUSR | S_IWUSR,
1164                    nes_show_wqm_quanta, nes_store_wqm_quanta);
1165
1166 static int nes_create_driver_sysfs(struct pci_driver *drv)
1167 {
1168         int error;
1169         error  = driver_create_file(&drv->driver, &driver_attr_adapter);
1170         error |= driver_create_file(&drv->driver, &driver_attr_eeprom_cmd);
1171         error |= driver_create_file(&drv->driver, &driver_attr_eeprom_data);
1172         error |= driver_create_file(&drv->driver, &driver_attr_flash_cmd);
1173         error |= driver_create_file(&drv->driver, &driver_attr_flash_data);
1174         error |= driver_create_file(&drv->driver, &driver_attr_nonidx_addr);
1175         error |= driver_create_file(&drv->driver, &driver_attr_nonidx_data);
1176         error |= driver_create_file(&drv->driver, &driver_attr_idx_addr);
1177         error |= driver_create_file(&drv->driver, &driver_attr_idx_data);
1178         error |= driver_create_file(&drv->driver, &driver_attr_wqm_quanta);
1179         return error;
1180 }
1181
1182 static void nes_remove_driver_sysfs(struct pci_driver *drv)
1183 {
1184         driver_remove_file(&drv->driver, &driver_attr_adapter);
1185         driver_remove_file(&drv->driver, &driver_attr_eeprom_cmd);
1186         driver_remove_file(&drv->driver, &driver_attr_eeprom_data);
1187         driver_remove_file(&drv->driver, &driver_attr_flash_cmd);
1188         driver_remove_file(&drv->driver, &driver_attr_flash_data);
1189         driver_remove_file(&drv->driver, &driver_attr_nonidx_addr);
1190         driver_remove_file(&drv->driver, &driver_attr_nonidx_data);
1191         driver_remove_file(&drv->driver, &driver_attr_idx_addr);
1192         driver_remove_file(&drv->driver, &driver_attr_idx_data);
1193         driver_remove_file(&drv->driver, &driver_attr_wqm_quanta);
1194 }
1195
1196 /**
1197  * nes_init_module - module initialization entry point
1198  */
1199 static int __init nes_init_module(void)
1200 {
1201         int retval;
1202         int retval1;
1203
1204         retval = nes_cm_start();
1205         if (retval) {
1206                 printk(KERN_ERR PFX "Unable to start NetEffect iWARP CM.\n");
1207                 return retval;
1208         }
1209         retval = pci_register_driver(&nes_pci_driver);
1210         if (retval >= 0) {
1211                 retval1 = nes_create_driver_sysfs(&nes_pci_driver);
1212                 if (retval1 < 0)
1213                         printk(KERN_ERR PFX "Unable to create NetEffect sys files.\n");
1214         }
1215         return retval;
1216 }
1217
1218
1219 /**
1220  * nes_exit_module - module unload entry point
1221  */
1222 static void __exit nes_exit_module(void)
1223 {
1224         nes_cm_stop();
1225         nes_remove_driver_sysfs(&nes_pci_driver);
1226
1227         pci_unregister_driver(&nes_pci_driver);
1228 }
1229
1230
1231 module_init(nes_init_module);
1232 module_exit(nes_exit_module);