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   1 /*
   2  * Copyright (c) 2006 - 2008 NetEffect, Inc. All rights reserved.
   3  * Copyright (c) 2005 Open Grid Computing, Inc. All rights reserved.
   4  *
   5  * This software is available to you under a choice of one of two
   6  * licenses.  You may choose to be licensed under the terms of the GNU
   7  * General Public License (GPL) Version 2, available from the file
   8  * COPYING in the main directory of this source tree, or the
   9  * OpenIB.org BSD license below:
  10  *
  11  *     Redistribution and use in source and binary forms, with or
  12  *     without modification, are permitted provided that the following
  13  *     conditions are met:
  14  *
  15  *      - Redistributions of source code must retain the above
  16  *        copyright notice, this list of conditions and the following
  17  *        disclaimer.
  18  *
  19  *      - Redistributions in binary form must reproduce the above
  20  *        copyright notice, this list of conditions and the following
  21  *        disclaimer in the documentation and/or other materials
  22  *        provided with the distribution.
  23  *
  24  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  25  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  26  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  27  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  28  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  29  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  30  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  31  * SOFTWARE.
  32  */
  33
  34 #include <linux/module.h>
  35 #include <linux/moduleparam.h>
  36 #include <linux/netdevice.h>
  37 #include <linux/etherdevice.h>
  38 #include <linux/ethtool.h>
  39 #include <linux/mii.h>
  40 #include <linux/if_vlan.h>
  41 #include <linux/crc32.h>
  42 #include <linux/in.h>
  43 #include <linux/fs.h>
  44 #include <linux/init.h>
  45 #include <linux/if_arp.h>
  46 #include <linux/highmem.h>
  47 #include <asm/io.h>
  48 #include <asm/irq.h>
  49 #include <asm/byteorder.h>
  50 #include <rdma/ib_smi.h>
  51 #include <rdma/ib_verbs.h>
  52 #include <rdma/ib_pack.h>
  53 #include <rdma/iw_cm.h>
  54
  55 #include "nes.h"
  56
  57 #include <net/netevent.h>
  58 #include <net/neighbour.h>
  59 #include <linux/route.h>
  60 #include <net/ip_fib.h>
  61
  62 MODULE_AUTHOR("NetEffect");
  63 MODULE_DESCRIPTION("NetEffect RNIC Low-level iWARP Driver");
  64 MODULE_LICENSE("Dual BSD/GPL");
  65 MODULE_VERSION(DRV_VERSION);
  66
  67 int max_mtu = 9000;
  68 int interrupt_mod_interval = 0;
  69
  70
  71 /* Interoperability */
  72 int mpa_version = 1;
  73 module_param(mpa_version, int, 0644);
  74 MODULE_PARM_DESC(mpa_version, "MPA version to be used int MPA Req/Resp (0 or 1)");
  75
  76 /* Interoperability */
  77 int disable_mpa_crc = 0;
  78 module_param(disable_mpa_crc, int, 0644);
  79 MODULE_PARM_DESC(disable_mpa_crc, "Disable checking of MPA CRC");
  80
  81 unsigned int send_first = 0;
  82 module_param(send_first, int, 0644);
  83 MODULE_PARM_DESC(send_first, "Send RDMA Message First on Active Connection");
  84
  85
  86 unsigned int nes_drv_opt = 0;
  87 module_param(nes_drv_opt, int, 0644);
  88 MODULE_PARM_DESC(nes_drv_opt, "Driver option parameters");
  89
  90 unsigned int nes_debug_level = 0;
  91 module_param_named(debug_level, nes_debug_level, uint, 0644);
  92 MODULE_PARM_DESC(debug_level, "Enable debug output level");
  93
  94 unsigned int wqm_quanta = 0x10000;
  95 module_param(wqm_quanta, int, 0644);
  96 MODULE_PARM_DESC(wqm_quanta, "WQM quanta");
  97
  98 static unsigned int limit_maxrdreqsz;
  99 module_param(limit_maxrdreqsz, bool, 0644);
 100 MODULE_PARM_DESC(limit_maxrdreqsz, "Limit max read request size to 256 Bytes");
 101
 102 LIST_HEAD(nes_adapter_list);
 103 static LIST_HEAD(nes_dev_list);
 104
 105 atomic_t qps_destroyed;
 106
 107 static unsigned int ee_flsh_adapter;
 108 static unsigned int sysfs_nonidx_addr;
 109 static unsigned int sysfs_idx_addr;
 110
 111 static struct pci_device_id nes_pci_table[] = {
 112         {PCI_VENDOR_ID_NETEFFECT, PCI_DEVICE_ID_NETEFFECT_NE020, PCI_ANY_ID, PCI_ANY_ID},
 113         {0}
 114 };
 115
 116 MODULE_DEVICE_TABLE(pci, nes_pci_table);
 117
 118 static int nes_inetaddr_event(struct notifier_block *, unsigned long, void *);
 119 static int nes_net_event(struct notifier_block *, unsigned long, void *);
 120 static int nes_notifiers_registered;
 121
 122
 123 static struct notifier_block nes_inetaddr_notifier = {
 124         .notifier_call = nes_inetaddr_event
 125 };
 126
 127 static struct notifier_block nes_net_notifier = {
 128         .notifier_call = nes_net_event
 129 };
 130
 131
 132
 133
 134 /**
 135  * nes_inetaddr_event
 136  */
 137 static int nes_inetaddr_event(struct notifier_block *notifier,
 138                 unsigned long event, void *ptr)
 139 {
 140         struct in_ifaddr *ifa = ptr;
 141         struct net_device *event_netdev = ifa->ifa_dev->dev;
 142         struct nes_device *nesdev;
 143         struct net_device *netdev;
 144         struct nes_vnic *nesvnic;
 145
 146         nes_debug(NES_DBG_NETDEV, "nes_inetaddr_event: ip address %pI4, netmask %pI4.\n",
 147                   &ifa->ifa_address, &ifa->ifa_mask);
 148         list_for_each_entry(nesdev, &nes_dev_list, list) {
 149                 nes_debug(NES_DBG_NETDEV, "Nesdev list entry = 0x%p. (%s)\n",
 150                                 nesdev, nesdev->netdev[0]->name);
 151                 netdev = nesdev->netdev[0];
 152                 nesvnic = netdev_priv(netdev);
 153                 if (netdev == event_netdev) {
 154                         if (nesvnic->rdma_enabled == 0) {
 155                                 nes_debug(NES_DBG_NETDEV, "Returning without processing event for %s since"
 156                                                 " RDMA is not enabled.\n",
 157                                                 netdev->name);
 158                                 return NOTIFY_OK;
 159                         }
 160                         /* we have ifa->ifa_address/mask here if we need it */
 161                         switch (event) {
 162                                 case NETDEV_DOWN:
 163                                         nes_debug(NES_DBG_NETDEV, "event:DOWN\n");
 164                                         nes_write_indexed(nesdev,
 165                                                         NES_IDX_DST_IP_ADDR+(0x10*PCI_FUNC(nesdev->pcidev->devfn)), 0);
 166
 167                                         nes_manage_arp_cache(netdev, netdev->dev_addr,
 168                                                         ntohl(nesvnic->local_ipaddr), NES_ARP_DELETE);
 169                                         nesvnic->local_ipaddr = 0;
 170                                         return NOTIFY_OK;
 171                                         break;
 172                                 case NETDEV_UP:
 173                                         nes_debug(NES_DBG_NETDEV, "event:UP\n");
 174
 175                                         if (nesvnic->local_ipaddr != 0) {
 176                                                 nes_debug(NES_DBG_NETDEV, "Interface already has local_ipaddr\n");
 177                                                 return NOTIFY_OK;
 178                                         }
 179                                         /* Add the address to the IP table */
 180                                         nesvnic->local_ipaddr = ifa->ifa_address;
 181
 182                                         nes_write_indexed(nesdev,
 183                                                         NES_IDX_DST_IP_ADDR+(0x10*PCI_FUNC(nesdev->pcidev->devfn)),
 184                                                         ntohl(ifa->ifa_address));
 185                                         nes_manage_arp_cache(netdev, netdev->dev_addr,
 186                                                         ntohl(nesvnic->local_ipaddr), NES_ARP_ADD);
 187                                         return NOTIFY_OK;
 188                                         break;
 189                                 default:
 190                                         break;
 191                         }
 192                 }
 193         }
 194
 195         return NOTIFY_DONE;
 196 }
 197
 198
 199 /**
 200  * nes_net_event
 201  */
 202 static int nes_net_event(struct notifier_block *notifier,
 203                 unsigned long event, void *ptr)
 204 {
 205         struct neighbour *neigh = ptr;
 206         struct nes_device *nesdev;
 207         struct net_device *netdev;
 208         struct nes_vnic *nesvnic;
 209
 210         switch (event) {
 211                 case NETEVENT_NEIGH_UPDATE:
 212                         list_for_each_entry(nesdev, &nes_dev_list, list) {
 213                                 /* nes_debug(NES_DBG_NETDEV, "Nesdev list entry = 0x%p.\n", nesdev); */
 214                                 netdev = nesdev->netdev[0];
 215                                 nesvnic = netdev_priv(netdev);
 216                                 if (netdev == neigh->dev) {
 217                                         if (nesvnic->rdma_enabled == 0) {
 218                                                 nes_debug(NES_DBG_NETDEV, "Skipping device %s since no RDMA\n",
 219                                                                 netdev->name);
 220                                         } else {
 221                                                 if (neigh->nud_state & NUD_VALID) {
 222                                                         nes_manage_arp_cache(neigh->dev, neigh->ha,
 223                                                                         ntohl(*(__be32 *)neigh->primary_key), NES_ARP_ADD);
 224                                                 } else {
 225                                                         nes_manage_arp_cache(neigh->dev, neigh->ha,
 226                                                                         ntohl(*(__be32 *)neigh->primary_key), NES_ARP_DELETE);
 227                                                 }
 228                                         }
 229                                         return NOTIFY_OK;
 230                                 }
 231                         }
 232                         break;
 233                 default:
 234                         nes_debug(NES_DBG_NETDEV, "NETEVENT_ %lu undefined\n", event);
 235                         break;
 236         }
 237
 238         return NOTIFY_DONE;
 239 }
 240
 241
 242 /**
 243  * nes_add_ref
 244  */
 245 void nes_add_ref(struct ib_qp *ibqp)
 246 {
 247         struct nes_qp *nesqp;
 248
 249         nesqp = to_nesqp(ibqp);
 250         nes_debug(NES_DBG_QP, "Bumping refcount for QP%u.  Pre-inc value = %u\n",
 251                         ibqp->qp_num, atomic_read(&nesqp->refcount));
 252         atomic_inc(&nesqp->refcount);
 253 }
 254
 255 static void nes_cqp_rem_ref_callback(struct nes_device *nesdev, struct nes_cqp_request *cqp_request)
 256 {
 257         unsigned long flags;
 258         struct nes_qp *nesqp = cqp_request->cqp_callback_pointer;
 259         struct nes_adapter *nesadapter = nesdev->nesadapter;
 260         u32 qp_id;
 261
 262         atomic_inc(&qps_destroyed);
 263
 264         /* Free the control structures */
 265
 266         qp_id = nesqp->hwqp.qp_id;
 267         if (nesqp->pbl_vbase) {
 268                 pci_free_consistent(nesdev->pcidev, nesqp->qp_mem_size,
 269                                 nesqp->hwqp.q2_vbase, nesqp->hwqp.q2_pbase);
 270                 spin_lock_irqsave(&nesadapter->pbl_lock, flags);
 271                 nesadapter->free_256pbl++;
 272                 spin_unlock_irqrestore(&nesadapter->pbl_lock, flags);
 273                 pci_free_consistent(nesdev->pcidev, 256, nesqp->pbl_vbase, nesqp->pbl_pbase);
 274                 nesqp->pbl_vbase = NULL;
 275
 276         } else {
 277                 pci_free_consistent(nesdev->pcidev, nesqp->qp_mem_size,
 278                                 nesqp->hwqp.sq_vbase, nesqp->hwqp.sq_pbase);
 279         }
 280         nes_free_resource(nesadapter, nesadapter->allocated_qps, nesqp->hwqp.qp_id);
 281
 282         nesadapter->qp_table[nesqp->hwqp.qp_id-NES_FIRST_QPN] = NULL;
 283         kfree(nesqp->allocated_buffer);
 284
 285 }
 286
 287 /**
 288  * nes_rem_ref
 289  */
 290 void nes_rem_ref(struct ib_qp *ibqp)
 291 {
 292         u64 u64temp;
 293         struct nes_qp *nesqp;
 294         struct nes_vnic *nesvnic = to_nesvnic(ibqp->device);
 295         struct nes_device *nesdev = nesvnic->nesdev;
 296         struct nes_hw_cqp_wqe *cqp_wqe;
 297         struct nes_cqp_request *cqp_request;
 298         u32 opcode;
 299
 300         nesqp = to_nesqp(ibqp);
 301
 302         if (atomic_read(&nesqp->refcount) == 0) {
 303                 printk(KERN_INFO PFX "%s: Reference count already 0 for QP%d, last aeq = 0x%04X.\n",
 304                                 __func__, ibqp->qp_num, nesqp->last_aeq);
 305                 BUG();
 306         }
 307
 308         if (atomic_dec_and_test(&nesqp->refcount)) {
 309                 /* Destroy the QP */
 310                 cqp_request = nes_get_cqp_request(nesdev);
 311                 if (cqp_request == NULL) {
 312                         nes_debug(NES_DBG_QP, "Failed to get a cqp_request.\n");
 313                         return;
 314                 }
 315                 cqp_request->waiting = 0;
 316                 cqp_request->callback = 1;
 317                 cqp_request->cqp_callback = nes_cqp_rem_ref_callback;
 318                 cqp_request->cqp_callback_pointer = nesqp;
 319                 cqp_wqe = &cqp_request->cqp_wqe;
 320
 321                 nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
 322                 opcode = NES_CQP_DESTROY_QP | NES_CQP_QP_TYPE_IWARP;
 323
 324                 if (nesqp->hte_added) {
 325                         opcode  |= NES_CQP_QP_DEL_HTE;
 326                         nesqp->hte_added = 0;
 327                 }
 328                 set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, opcode);
 329                 set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX, nesqp->hwqp.qp_id);
 330                 u64temp = (u64)nesqp->nesqp_context_pbase;
 331                 set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_QP_WQE_CONTEXT_LOW_IDX, u64temp);
 332                 nes_post_cqp_request(nesdev, cqp_request);
 333         }
 334 }
 335
 336
 337 /**
 338  * nes_get_qp
 339  */
 340 struct ib_qp *nes_get_qp(struct ib_device *device, int qpn)
 341 {
 342         struct nes_vnic *nesvnic = to_nesvnic(device);
 343         struct nes_device *nesdev = nesvnic->nesdev;
 344         struct nes_adapter *nesadapter = nesdev->nesadapter;
 345
 346         if ((qpn < NES_FIRST_QPN) || (qpn >= (NES_FIRST_QPN + nesadapter->max_qp)))
 347                 return NULL;
 348
 349         return &nesadapter->qp_table[qpn - NES_FIRST_QPN]->ibqp;
 350 }
 351
 352
 353 /**
 354  * nes_print_macaddr
 355  */
 356 static void nes_print_macaddr(struct net_device *netdev)
 357 {
 358         nes_debug(NES_DBG_INIT, "%s: %pM, IRQ %u\n",
 359                   netdev->name, netdev->dev_addr, netdev->irq);
 360 }
 361
 362 /**
 363  * nes_interrupt - handle interrupts
 364  */
 365 static irqreturn_t nes_interrupt(int irq, void *dev_id)
 366 {
 367         struct nes_device *nesdev = (struct nes_device *)dev_id;
 368         int handled = 0;
 369         u32 int_mask;
 370         u32 int_req;
 371         u32 int_stat;
 372         u32 intf_int_stat;
 373         u32 timer_stat;
 374
 375         if (nesdev->msi_enabled) {
 376                 /* No need to read the interrupt pending register if msi is enabled */
 377                 handled = 1;
 378         } else {
 379                 if (unlikely(nesdev->nesadapter->hw_rev == NE020_REV)) {
 380                         /* Master interrupt enable provides synchronization for kicking off bottom half
 381                           when interrupt sharing is going on */
 382                         int_mask = nes_read32(nesdev->regs + NES_INT_MASK);
 383                         if (int_mask & 0x80000000) {
 384                                 /* Check interrupt status to see if this might be ours */
 385                                 int_stat = nes_read32(nesdev->regs + NES_INT_STAT);
 386                                 int_req = nesdev->int_req;
 387                                 if (int_stat&int_req) {
 388                                         /* if interesting CEQ or AEQ is pending, claim the interrupt */
 389                                         if ((int_stat&int_req) & (~(NES_INT_TIMER|NES_INT_INTF))) {
 390                                                 handled = 1;
 391                                         } else {
 392                                                 if (((int_stat & int_req) & NES_INT_TIMER) == NES_INT_TIMER) {
 393                                                         /* Timer might be running but might be for another function */
 394                                                         timer_stat = nes_read32(nesdev->regs + NES_TIMER_STAT);
 395                                                         if ((timer_stat & nesdev->timer_int_req) != 0) {
 396                                                                 handled = 1;
 397                                                         }
 398                                                 }
 399                                                 if ((((int_stat & int_req) & NES_INT_INTF) == NES_INT_INTF) &&
 400                                                                 (handled == 0)) {
 401                                                         intf_int_stat = nes_read32(nesdev->regs+NES_INTF_INT_STAT);
 402                                                         if ((intf_int_stat & nesdev->intf_int_req) != 0) {
 403                                                                 handled = 1;
 404                                                         }
 405                                                 }
 406                                         }
 407                                         if (handled) {
 408                                                 nes_write32(nesdev->regs+NES_INT_MASK, int_mask & (~0x80000000));
 409                                                 int_mask = nes_read32(nesdev->regs+NES_INT_MASK);
 410                                                 /* Save off the status to save an additional read */
 411                                                 nesdev->int_stat = int_stat;
 412                                                 nesdev->napi_isr_ran = 1;
 413                                         }
 414                                 }
 415                         }
 416                 } else {
 417                         handled = nes_read32(nesdev->regs+NES_INT_PENDING);
 418                 }
 419         }
 420
 421         if (handled) {
 422
 423                 if (nes_napi_isr(nesdev) == 0) {
 424                         tasklet_schedule(&nesdev->dpc_tasklet);
 425
 426                 }
 427                 return IRQ_HANDLED;
 428         } else {
 429                 return IRQ_NONE;
 430         }
 431 }
 432
 433
 434 /**
 435  * nes_probe - Device initialization
 436  */
 437 static int __devinit nes_probe(struct pci_dev *pcidev, const struct pci_device_id *ent)
 438 {
 439         struct net_device *netdev = NULL;
 440         struct nes_device *nesdev = NULL;
 441         int ret = 0;
 442         struct nes_vnic *nesvnic = NULL;
 443         void __iomem *mmio_regs = NULL;
 444         u8 hw_rev;
 445
 446         assert(pcidev != NULL);
 447         assert(ent != NULL);
 448
 449         printk(KERN_INFO PFX "NetEffect RNIC driver v%s loading. (%s)\n",
 450                         DRV_VERSION, pci_name(pcidev));
 451
 452         ret = pci_enable_device(pcidev);
 453         if (ret) {
 454                 printk(KERN_ERR PFX "Unable to enable PCI device. (%s)\n", pci_name(pcidev));
 455                 goto bail0;
 456         }
 457
 458         nes_debug(NES_DBG_INIT, "BAR0 (@0x%08lX) size = 0x%lX bytes\n",
 459                         (long unsigned int)pci_resource_start(pcidev, BAR_0),
 460                         (long unsigned int)pci_resource_len(pcidev, BAR_0));
 461         nes_debug(NES_DBG_INIT, "BAR1 (@0x%08lX) size = 0x%lX bytes\n",
 462                         (long unsigned int)pci_resource_start(pcidev, BAR_1),
 463                         (long unsigned int)pci_resource_len(pcidev, BAR_1));
 464
 465         /* Make sure PCI base addr are MMIO */
 466         if (!(pci_resource_flags(pcidev, BAR_0) & IORESOURCE_MEM) ||
 467                         !(pci_resource_flags(pcidev, BAR_1) & IORESOURCE_MEM)) {
 468                 printk(KERN_ERR PFX "PCI regions not an MMIO resource\n");
 469                 ret = -ENODEV;
 470                 goto bail1;
 471         }
 472
 473         /* Reserve PCI I/O and memory resources */
 474         ret = pci_request_regions(pcidev, DRV_NAME);
 475         if (ret) {
 476                 printk(KERN_ERR PFX "Unable to request regions. (%s)\n", pci_name(pcidev));
 477                 goto bail1;
 478         }
 479
 480         if ((sizeof(dma_addr_t) > 4)) {
 481                 ret = pci_set_dma_mask(pcidev, DMA_64BIT_MASK);
 482                 if (ret < 0) {
 483                         printk(KERN_ERR PFX "64b DMA mask configuration failed\n");
 484                         goto bail2;
 485                 }
 486                 ret = pci_set_consistent_dma_mask(pcidev, DMA_64BIT_MASK);
 487                 if (ret) {
 488                         printk(KERN_ERR PFX "64b DMA consistent mask configuration failed\n");
 489                         goto bail2;
 490                 }
 491         } else {
 492                 ret = pci_set_dma_mask(pcidev, DMA_32BIT_MASK);
 493                 if (ret < 0) {
 494                         printk(KERN_ERR PFX "32b DMA mask configuration failed\n");
 495                         goto bail2;
 496                 }
 497                 ret = pci_set_consistent_dma_mask(pcidev, DMA_32BIT_MASK);
 498                 if (ret) {
 499                         printk(KERN_ERR PFX "32b DMA consistent mask configuration failed\n");
 500                         goto bail2;
 501                 }
 502         }
 503
 504         pci_set_master(pcidev);
 505
 506         /* Allocate hardware structure */
 507         nesdev = kzalloc(sizeof(struct nes_device), GFP_KERNEL);
 508         if (!nesdev) {
 509                 printk(KERN_ERR PFX "%s: Unable to alloc hardware struct\n", pci_name(pcidev));
 510                 ret = -ENOMEM;
 511                 goto bail2;
 512         }
 513
 514         nes_debug(NES_DBG_INIT, "Allocated nes device at %p\n", nesdev);
 515         nesdev->pcidev = pcidev;
 516         pci_set_drvdata(pcidev, nesdev);
 517
 518         pci_read_config_byte(pcidev, 0x0008, &hw_rev);
 519         nes_debug(NES_DBG_INIT, "hw_rev=%u\n", hw_rev);
 520
 521         spin_lock_init(&nesdev->indexed_regs_lock);
 522
 523         /* Remap the PCI registers in adapter BAR0 to kernel VA space */
 524         mmio_regs = ioremap_nocache(pci_resource_start(pcidev, BAR_0), sizeof(mmio_regs));
 525         if (mmio_regs == NULL) {
 526                 printk(KERN_ERR PFX "Unable to remap BAR0\n");
 527                 ret = -EIO;
 528                 goto bail3;
 529         }
 530         nesdev->regs = mmio_regs;
 531         nesdev->index_reg = 0x50 + (PCI_FUNC(pcidev->devfn)*8) + mmio_regs;
 532
 533         /* Ensure interrupts are disabled */
 534         nes_write32(nesdev->regs+NES_INT_MASK, 0x7fffffff);
 535
 536         if (nes_drv_opt & NES_DRV_OPT_ENABLE_MSI) {
 537                 if (!pci_enable_msi(nesdev->pcidev)) {
 538                         nesdev->msi_enabled = 1;
 539                         nes_debug(NES_DBG_INIT, "MSI is enabled for device %s\n",
 540                                         pci_name(pcidev));
 541                 } else {
 542                         nes_debug(NES_DBG_INIT, "MSI is disabled by linux for device %s\n",
 543                                         pci_name(pcidev));
 544                 }
 545         } else {
 546                 nes_debug(NES_DBG_INIT, "MSI not requested due to driver options for device %s\n",
 547                                 pci_name(pcidev));
 548         }
 549
 550         nesdev->csr_start = pci_resource_start(nesdev->pcidev, BAR_0);
 551         nesdev->doorbell_region = pci_resource_start(nesdev->pcidev, BAR_1);
 552
 553         /* Init the adapter */
 554         nesdev->nesadapter = nes_init_adapter(nesdev, hw_rev);
 555         if (!nesdev->nesadapter) {
 556                 printk(KERN_ERR PFX "Unable to initialize adapter.\n");
 557                 ret = -ENOMEM;
 558                 goto bail5;
 559         }
 560         nesdev->nesadapter->et_rx_coalesce_usecs_irq = interrupt_mod_interval;
 561         nesdev->nesadapter->wqm_quanta = wqm_quanta;
 562
 563         /* nesdev->base_doorbell_index =
 564                         nesdev->nesadapter->pd_config_base[PCI_FUNC(nesdev->pcidev->devfn)]; */
 565         nesdev->base_doorbell_index = 1;
 566         nesdev->doorbell_start = nesdev->nesadapter->doorbell_start;
 567         if (nesdev->nesadapter->phy_type[0] == NES_PHY_TYPE_PUMA_1G) {
 568                 switch (PCI_FUNC(nesdev->pcidev->devfn) %
 569                         nesdev->nesadapter->port_count) {
 570                 case 1:
 571                         nesdev->mac_index = 2;
 572                         break;
 573                 case 2:
 574                         nesdev->mac_index = 1;
 575                         break;
 576                 case 3:
 577                         nesdev->mac_index = 3;
 578                         break;
 579                 case 0:
 580                 default:
 581                         nesdev->mac_index = 0;
 582                 }
 583         } else {
 584                 nesdev->mac_index = PCI_FUNC(nesdev->pcidev->devfn) %
 585                                                 nesdev->nesadapter->port_count;
 586         }
 587
 588         if ((limit_maxrdreqsz ||
 589              ((nesdev->nesadapter->phy_type[0] == NES_PHY_TYPE_GLADIUS) &&
 590               (hw_rev == NE020_REV1))) &&
 591             (pcie_get_readrq(pcidev) > 256)) {
 592                 if (pcie_set_readrq(pcidev, 256))
 593                         printk(KERN_ERR PFX "Unable to set max read request"
 594                                 " to 256 bytes\n");
 595                 else
 596                         nes_debug(NES_DBG_INIT, "Max read request size set"
 597                                 " to 256 bytes\n");
 598         }
 599
 600         tasklet_init(&nesdev->dpc_tasklet, nes_dpc, (unsigned long)nesdev);
 601
 602         /* bring up the Control QP */
 603         if (nes_init_cqp(nesdev)) {
 604                 ret = -ENODEV;
 605                 goto bail6;
 606         }
 607
 608         /* Arm the CCQ */
 609         nes_write32(nesdev->regs+NES_CQE_ALLOC, NES_CQE_ALLOC_NOTIFY_NEXT |
 610                         PCI_FUNC(nesdev->pcidev->devfn));
 611         nes_read32(nesdev->regs+NES_CQE_ALLOC);
 612
 613         /* Enable the interrupts */
 614         nesdev->int_req = (0x101 << PCI_FUNC(nesdev->pcidev->devfn)) |
 615                         (1 << (PCI_FUNC(nesdev->pcidev->devfn)+16));
 616         if (PCI_FUNC(nesdev->pcidev->devfn) < 4) {
 617                 nesdev->int_req |= (1 << (PCI_FUNC(nesdev->mac_index)+24));
 618         }
 619
 620         /* TODO: This really should be the first driver to load, not function 0 */
 621         if (PCI_FUNC(nesdev->pcidev->devfn) == 0) {
 622                 /* pick up PCI and critical errors if the first driver to load */
 623                 nesdev->intf_int_req = NES_INTF_INT_PCIERR | NES_INTF_INT_CRITERR;
 624                 nesdev->int_req |= NES_INT_INTF;
 625         } else {
 626                 nesdev->intf_int_req = 0;
 627         }
 628         nesdev->intf_int_req |= (1 << (PCI_FUNC(nesdev->pcidev->devfn)+16));
 629         nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS0, 0);
 630         nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS1, 0);
 631         nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS2, 0x00001265);
 632         nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS4, 0x18021804);
 633
 634         nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS3, 0x17801790);
 635
 636         /* deal with both periodic and one_shot */
 637         nesdev->timer_int_req = 0x101 << PCI_FUNC(nesdev->pcidev->devfn);
 638         nesdev->nesadapter->timer_int_req |= nesdev->timer_int_req;
 639         nes_debug(NES_DBG_INIT, "setting int_req for function %u, nesdev = 0x%04X, adapter = 0x%04X\n",
 640                         PCI_FUNC(nesdev->pcidev->devfn),
 641                         nesdev->timer_int_req, nesdev->nesadapter->timer_int_req);
 642
 643         nes_write32(nesdev->regs+NES_INTF_INT_MASK, ~(nesdev->intf_int_req));
 644
 645         list_add_tail(&nesdev->list, &nes_dev_list);
 646
 647         /* Request an interrupt line for the driver */
 648         ret = request_irq(pcidev->irq, nes_interrupt, IRQF_SHARED, DRV_NAME, nesdev);
 649         if (ret) {
 650                 printk(KERN_ERR PFX "%s: requested IRQ %u is busy\n",
 651                                 pci_name(pcidev), pcidev->irq);
 652                 goto bail65;
 653         }
 654
 655         nes_write32(nesdev->regs+NES_INT_MASK, ~nesdev->int_req);
 656
 657         if (nes_notifiers_registered == 0) {
 658                 register_inetaddr_notifier(&nes_inetaddr_notifier);
 659                 register_netevent_notifier(&nes_net_notifier);
 660         }
 661         nes_notifiers_registered++;
 662
 663         /* Initialize network devices */
 664                 if ((netdev = nes_netdev_init(nesdev, mmio_regs)) == NULL) {
 665                         goto bail7;
 666                 }
 667
 668                 /* Register network device */
 669                 ret = register_netdev(netdev);
 670                 if (ret) {
 671                         printk(KERN_ERR PFX "Unable to register netdev, ret = %d\n", ret);
 672                         nes_netdev_destroy(netdev);
 673                         goto bail7;
 674                 }
 675
 676                 nes_print_macaddr(netdev);
 677                 /* create a CM core for this netdev */
 678                 nesvnic = netdev_priv(netdev);
 679
 680                 nesdev->netdev_count++;
 681                 nesdev->nesadapter->netdev_count++;
 682
 683
 684         printk(KERN_ERR PFX "%s: NetEffect RNIC driver successfully loaded.\n",
 685                         pci_name(pcidev));
 686         return 0;
 687
 688         bail7:
 689         printk(KERN_ERR PFX "bail7\n");
 690         while (nesdev->netdev_count > 0) {
 691                 nesdev->netdev_count--;
 692                 nesdev->nesadapter->netdev_count--;
 693
 694                 unregister_netdev(nesdev->netdev[nesdev->netdev_count]);
 695                 nes_netdev_destroy(nesdev->netdev[nesdev->netdev_count]);
 696         }
 697
 698         nes_debug(NES_DBG_INIT, "netdev_count=%d, nesadapter->netdev_count=%d\n",
 699                         nesdev->netdev_count, nesdev->nesadapter->netdev_count);
 700
 701         nes_notifiers_registered--;
 702         if (nes_notifiers_registered == 0) {
 703                 unregister_netevent_notifier(&nes_net_notifier);
 704                 unregister_inetaddr_notifier(&nes_inetaddr_notifier);
 705         }
 706
 707         list_del(&nesdev->list);
 708         nes_destroy_cqp(nesdev);
 709
 710         bail65:
 711         printk(KERN_ERR PFX "bail65\n");
 712         free_irq(pcidev->irq, nesdev);
 713         if (nesdev->msi_enabled) {
 714                 pci_disable_msi(pcidev);
 715         }
 716         bail6:
 717         printk(KERN_ERR PFX "bail6\n");
 718         tasklet_kill(&nesdev->dpc_tasklet);
 719         /* Deallocate the Adapter Structure */
 720         nes_destroy_adapter(nesdev->nesadapter);
 721
 722         bail5:
 723         printk(KERN_ERR PFX "bail5\n");
 724         iounmap(nesdev->regs);
 725
 726         bail3:
 727         printk(KERN_ERR PFX "bail3\n");
 728         kfree(nesdev);
 729
 730         bail2:
 731         pci_release_regions(pcidev);
 732
 733         bail1:
 734         pci_disable_device(pcidev);
 735
 736         bail0:
 737         return ret;
 738 }
 739
 740
 741 /**
 742  * nes_remove - unload from kernel
 743  */
 744 static void __devexit nes_remove(struct pci_dev *pcidev)
 745 {
 746         struct nes_device *nesdev = pci_get_drvdata(pcidev);
 747         struct net_device *netdev;
 748         int netdev_index = 0;
 749
 750                 if (nesdev->netdev_count) {
 751                         netdev = nesdev->netdev[netdev_index];
 752                         if (netdev) {
 753                                 netif_stop_queue(netdev);
 754                                 unregister_netdev(netdev);
 755                                 nes_netdev_destroy(netdev);
 756
 757                                 nesdev->netdev[netdev_index] = NULL;
 758                                 nesdev->netdev_count--;
 759                                 nesdev->nesadapter->netdev_count--;
 760                         }
 761                 }
 762
 763         nes_notifiers_registered--;
 764         if (nes_notifiers_registered == 0) {
 765                 unregister_netevent_notifier(&nes_net_notifier);
 766                 unregister_inetaddr_notifier(&nes_inetaddr_notifier);
 767         }
 768
 769         list_del(&nesdev->list);
 770         nes_destroy_cqp(nesdev);
 771
 772         free_irq(pcidev->irq, nesdev);
 773         tasklet_kill(&nesdev->dpc_tasklet);
 774
 775         /* Deallocate the Adapter Structure */
 776         nes_destroy_adapter(nesdev->nesadapter);
 777
 778         if (nesdev->msi_enabled) {
 779                 pci_disable_msi(pcidev);
 780         }
 781
 782         iounmap(nesdev->regs);
 783         kfree(nesdev);
 784
 785         /* nes_debug(NES_DBG_SHUTDOWN, "calling pci_release_regions.\n"); */
 786         pci_release_regions(pcidev);
 787         pci_disable_device(pcidev);
 788         pci_set_drvdata(pcidev, NULL);
 789 }
 790
 791
 792 static struct pci_driver nes_pci_driver = {
 793         .name = DRV_NAME,
 794         .id_table = nes_pci_table,
 795         .probe = nes_probe,
 796         .remove = __devexit_p(nes_remove),
 797 };
 798
 799 static ssize_t nes_show_adapter(struct device_driver *ddp, char *buf)
 800 {
 801         unsigned int  devfn = 0xffffffff;
 802         unsigned char bus_number = 0xff;
 803         unsigned int  i = 0;
 804         struct nes_device *nesdev;
 805
 806         list_for_each_entry(nesdev, &nes_dev_list, list) {
 807                 if (i == ee_flsh_adapter) {
 808                         devfn = nesdev->pcidev->devfn;
 809                         bus_number = nesdev->pcidev->bus->number;
 810                         break;
 811                 }
 812                 i++;
 813         }
 814
 815         return snprintf(buf, PAGE_SIZE, "%x:%x\n", bus_number, devfn);
 816 }
 817
 818 static ssize_t nes_store_adapter(struct device_driver *ddp,
 819         const char *buf, size_t count)
 820 {
 821         char *p = (char *)buf;
 822
 823         ee_flsh_adapter = simple_strtoul(p, &p, 10);
 824         return strnlen(buf, count);
 825 }
 826
 827 static ssize_t nes_show_ee_cmd(struct device_driver *ddp, char *buf)
 828 {
 829         u32 eeprom_cmd = 0xdead;
 830         u32 i = 0;
 831         struct nes_device *nesdev;
 832
 833         list_for_each_entry(nesdev, &nes_dev_list, list) {
 834                 if (i == ee_flsh_adapter) {
 835                         eeprom_cmd = nes_read32(nesdev->regs + NES_EEPROM_COMMAND);
 836                         break;
 837                 }
 838                 i++;
 839         }
 840         return snprintf(buf, PAGE_SIZE, "0x%x\n", eeprom_cmd);
 841 }
 842
 843 static ssize_t nes_store_ee_cmd(struct device_driver *ddp,
 844         const char *buf, size_t count)
 845 {
 846         char *p = (char *)buf;
 847         u32 val;
 848         u32 i = 0;
 849         struct nes_device *nesdev;
 850
 851         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
 852                 val = simple_strtoul(p, &p, 16);
 853                 list_for_each_entry(nesdev, &nes_dev_list, list) {
 854                         if (i == ee_flsh_adapter) {
 855                                 nes_write32(nesdev->regs + NES_EEPROM_COMMAND, val);
 856                                 break;
 857                         }
 858                         i++;
 859                 }
 860         }
 861         return strnlen(buf, count);
 862 }
 863
 864 static ssize_t nes_show_ee_data(struct device_driver *ddp, char *buf)
 865 {
 866         u32 eeprom_data = 0xdead;
 867         u32 i = 0;
 868         struct nes_device *nesdev;
 869
 870         list_for_each_entry(nesdev, &nes_dev_list, list) {
 871                 if (i == ee_flsh_adapter) {
 872                         eeprom_data = nes_read32(nesdev->regs + NES_EEPROM_DATA);
 873                         break;
 874                 }
 875                 i++;
 876         }
 877
 878         return  snprintf(buf, PAGE_SIZE, "0x%x\n", eeprom_data);
 879 }
 880
 881 static ssize_t nes_store_ee_data(struct device_driver *ddp,
 882         const char *buf, size_t count)
 883 {
 884         char *p = (char *)buf;
 885         u32 val;
 886         u32 i = 0;
 887         struct nes_device *nesdev;
 888
 889         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
 890                 val = simple_strtoul(p, &p, 16);
 891                 list_for_each_entry(nesdev, &nes_dev_list, list) {
 892                         if (i == ee_flsh_adapter) {
 893                                 nes_write32(nesdev->regs + NES_EEPROM_DATA, val);
 894                                 break;
 895                         }
 896                         i++;
 897                 }
 898         }
 899         return strnlen(buf, count);
 900 }
 901
 902 static ssize_t nes_show_flash_cmd(struct device_driver *ddp, char *buf)
 903 {
 904         u32 flash_cmd = 0xdead;
 905         u32 i = 0;
 906         struct nes_device *nesdev;
 907
 908         list_for_each_entry(nesdev, &nes_dev_list, list) {
 909                 if (i == ee_flsh_adapter) {
 910                         flash_cmd = nes_read32(nesdev->regs + NES_FLASH_COMMAND);
 911                         break;
 912                 }
 913                 i++;
 914         }
 915
 916         return  snprintf(buf, PAGE_SIZE, "0x%x\n", flash_cmd);
 917 }
 918
 919 static ssize_t nes_store_flash_cmd(struct device_driver *ddp,
 920         const char *buf, size_t count)
 921 {
 922         char *p = (char *)buf;
 923         u32 val;
 924         u32 i = 0;
 925         struct nes_device *nesdev;
 926
 927         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
 928                 val = simple_strtoul(p, &p, 16);
 929                 list_for_each_entry(nesdev, &nes_dev_list, list) {
 930                         if (i == ee_flsh_adapter) {
 931                                 nes_write32(nesdev->regs + NES_FLASH_COMMAND, val);
 932                                 break;
 933                         }
 934                         i++;
 935                 }
 936         }
 937         return strnlen(buf, count);
 938 }
 939
 940 static ssize_t nes_show_flash_data(struct device_driver *ddp, char *buf)
 941 {
 942         u32 flash_data = 0xdead;
 943         u32 i = 0;
 944         struct nes_device *nesdev;
 945
 946         list_for_each_entry(nesdev, &nes_dev_list, list) {
 947                 if (i == ee_flsh_adapter) {
 948                         flash_data = nes_read32(nesdev->regs + NES_FLASH_DATA);
 949                         break;
 950                 }
 951                 i++;
 952         }
 953
 954         return  snprintf(buf, PAGE_SIZE, "0x%x\n", flash_data);
 955 }
 956
 957 static ssize_t nes_store_flash_data(struct device_driver *ddp,
 958         const char *buf, size_t count)
 959 {
 960         char *p = (char *)buf;
 961         u32 val;
 962         u32 i = 0;
 963         struct nes_device *nesdev;
 964
 965         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
 966                 val = simple_strtoul(p, &p, 16);
 967                 list_for_each_entry(nesdev, &nes_dev_list, list) {
 968                         if (i == ee_flsh_adapter) {
 969                                 nes_write32(nesdev->regs + NES_FLASH_DATA, val);
 970                                 break;
 971                         }
 972                         i++;
 973                 }
 974         }
 975         return strnlen(buf, count);
 976 }
 977
 978 static ssize_t nes_show_nonidx_addr(struct device_driver *ddp, char *buf)
 979 {
 980         return  snprintf(buf, PAGE_SIZE, "0x%x\n", sysfs_nonidx_addr);
 981 }
 982
 983 static ssize_t nes_store_nonidx_addr(struct device_driver *ddp,
 984         const char *buf, size_t count)
 985 {
 986         char *p = (char *)buf;
 987
 988         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X')
 989                 sysfs_nonidx_addr = simple_strtoul(p, &p, 16);
 990
 991         return strnlen(buf, count);
 992 }
 993
 994 static ssize_t nes_show_nonidx_data(struct device_driver *ddp, char *buf)
 995 {
 996         u32 nonidx_data = 0xdead;
 997         u32 i = 0;
 998         struct nes_device *nesdev;
 999
1000         list_for_each_entry(nesdev, &nes_dev_list, list) {
1001                 if (i == ee_flsh_adapter) {
1002                         nonidx_data = nes_read32(nesdev->regs + sysfs_nonidx_addr);
1003                         break;
1004                 }
1005                 i++;
1006         }
1007
1008         return  snprintf(buf, PAGE_SIZE, "0x%x\n", nonidx_data);
1009 }
1010
1011 static ssize_t nes_store_nonidx_data(struct device_driver *ddp,
1012         const char *buf, size_t count)
1013 {
1014         char *p = (char *)buf;
1015         u32 val;
1016         u32 i = 0;
1017         struct nes_device *nesdev;
1018
1019         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
1020                 val = simple_strtoul(p, &p, 16);
1021                 list_for_each_entry(nesdev, &nes_dev_list, list) {
1022                         if (i == ee_flsh_adapter) {
1023                                 nes_write32(nesdev->regs + sysfs_nonidx_addr, val);
1024                                 break;
1025                         }
1026                         i++;
1027                 }
1028         }
1029         return strnlen(buf, count);
1030 }
1031
1032 static ssize_t nes_show_idx_addr(struct device_driver *ddp, char *buf)
1033 {
1034         return  snprintf(buf, PAGE_SIZE, "0x%x\n", sysfs_idx_addr);
1035 }
1036
1037 static ssize_t nes_store_idx_addr(struct device_driver *ddp,
1038         const char *buf, size_t count)
1039 {
1040         char *p = (char *)buf;
1041
1042         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X')
1043                 sysfs_idx_addr = simple_strtoul(p, &p, 16);
1044
1045         return strnlen(buf, count);
1046 }
1047
1048 static ssize_t nes_show_idx_data(struct device_driver *ddp, char *buf)
1049 {
1050         u32 idx_data = 0xdead;
1051         u32 i = 0;
1052         struct nes_device *nesdev;
1053
1054         list_for_each_entry(nesdev, &nes_dev_list, list) {
1055                 if (i == ee_flsh_adapter) {
1056                         idx_data = nes_read_indexed(nesdev, sysfs_idx_addr);
1057                         break;
1058                 }
1059                 i++;
1060         }
1061
1062         return  snprintf(buf, PAGE_SIZE, "0x%x\n", idx_data);
1063 }
1064
1065 static ssize_t nes_store_idx_data(struct device_driver *ddp,
1066         const char *buf, size_t count)
1067 {
1068         char *p = (char *)buf;
1069         u32 val;
1070         u32 i = 0;
1071         struct nes_device *nesdev;
1072
1073         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
1074                 val = simple_strtoul(p, &p, 16);
1075                 list_for_each_entry(nesdev, &nes_dev_list, list) {
1076                         if (i == ee_flsh_adapter) {
1077                                 nes_write_indexed(nesdev, sysfs_idx_addr, val);
1078                                 break;
1079                         }
1080                         i++;
1081                 }
1082         }
1083         return strnlen(buf, count);
1084 }
1085
1086
1087 /**
1088  * nes_show_wqm_quanta
1089  */
1090 static ssize_t nes_show_wqm_quanta(struct device_driver *ddp, char *buf)
1091 {
1092         u32 wqm_quanta_value = 0xdead;
1093         u32 i = 0;
1094         struct nes_device *nesdev;
1095
1096         list_for_each_entry(nesdev, &nes_dev_list, list) {
1097                 if (i == ee_flsh_adapter) {
1098                         wqm_quanta_value = nesdev->nesadapter->wqm_quanta;
1099                         break;
1100                 }
1101                 i++;
1102         }
1103
1104         return  snprintf(buf, PAGE_SIZE, "0x%X\n", wqm_quanta);
1105 }
1106
1107
1108 /**
1109  * nes_store_wqm_quanta
1110  */
1111 static ssize_t nes_store_wqm_quanta(struct device_driver *ddp,
1112                                         const char *buf, size_t count)
1113 {
1114         unsigned long wqm_quanta_value;
1115         u32 wqm_config1;
1116         u32 i = 0;
1117         struct nes_device *nesdev;
1118
1119         strict_strtoul(buf, 0, &wqm_quanta_value);
1120         list_for_each_entry(nesdev, &nes_dev_list, list) {
1121                 if (i == ee_flsh_adapter) {
1122                         nesdev->nesadapter->wqm_quanta = wqm_quanta_value;
1123                         wqm_config1 = nes_read_indexed(nesdev,
1124                                                 NES_IDX_WQM_CONFIG1);
1125                         nes_write_indexed(nesdev, NES_IDX_WQM_CONFIG1,
1126                                         ((wqm_quanta_value << 1) |
1127                                         (wqm_config1 & 0x00000001)));
1128                         break;
1129                 }
1130                 i++;
1131         }
1132         return strnlen(buf, count);
1133 }
1134
1135 static DRIVER_ATTR(adapter, S_IRUSR | S_IWUSR,
1136                    nes_show_adapter, nes_store_adapter);
1137 static DRIVER_ATTR(eeprom_cmd, S_IRUSR | S_IWUSR,
1138                    nes_show_ee_cmd, nes_store_ee_cmd);
1139 static DRIVER_ATTR(eeprom_data, S_IRUSR | S_IWUSR,
1140                    nes_show_ee_data, nes_store_ee_data);
1141 static DRIVER_ATTR(flash_cmd, S_IRUSR | S_IWUSR,
1142                    nes_show_flash_cmd, nes_store_flash_cmd);
1143 static DRIVER_ATTR(flash_data, S_IRUSR | S_IWUSR,
1144                    nes_show_flash_data, nes_store_flash_data);
1145 static DRIVER_ATTR(nonidx_addr, S_IRUSR | S_IWUSR,
1146                    nes_show_nonidx_addr, nes_store_nonidx_addr);
1147 static DRIVER_ATTR(nonidx_data, S_IRUSR | S_IWUSR,
1148                    nes_show_nonidx_data, nes_store_nonidx_data);
1149 static DRIVER_ATTR(idx_addr, S_IRUSR | S_IWUSR,
1150                    nes_show_idx_addr, nes_store_idx_addr);
1151 static DRIVER_ATTR(idx_data, S_IRUSR | S_IWUSR,
1152                    nes_show_idx_data, nes_store_idx_data);
1153 static DRIVER_ATTR(wqm_quanta, S_IRUSR | S_IWUSR,
1154                    nes_show_wqm_quanta, nes_store_wqm_quanta);
1155
1156 static int nes_create_driver_sysfs(struct pci_driver *drv)
1157 {
1158         int error;
1159         error  = driver_create_file(&drv->driver, &driver_attr_adapter);
1160         error |= driver_create_file(&drv->driver, &driver_attr_eeprom_cmd);
1161         error |= driver_create_file(&drv->driver, &driver_attr_eeprom_data);
1162         error |= driver_create_file(&drv->driver, &driver_attr_flash_cmd);
1163         error |= driver_create_file(&drv->driver, &driver_attr_flash_data);
1164         error |= driver_create_file(&drv->driver, &driver_attr_nonidx_addr);
1165         error |= driver_create_file(&drv->driver, &driver_attr_nonidx_data);
1166         error |= driver_create_file(&drv->driver, &driver_attr_idx_addr);
1167         error |= driver_create_file(&drv->driver, &driver_attr_idx_data);
1168         error |= driver_create_file(&drv->driver, &driver_attr_wqm_quanta);
1169         return error;
1170 }
1171
1172 static void nes_remove_driver_sysfs(struct pci_driver *drv)
1173 {
1174         driver_remove_file(&drv->driver, &driver_attr_adapter);
1175         driver_remove_file(&drv->driver, &driver_attr_eeprom_cmd);
1176         driver_remove_file(&drv->driver, &driver_attr_eeprom_data);
1177         driver_remove_file(&drv->driver, &driver_attr_flash_cmd);
1178         driver_remove_file(&drv->driver, &driver_attr_flash_data);
1179         driver_remove_file(&drv->driver, &driver_attr_nonidx_addr);
1180         driver_remove_file(&drv->driver, &driver_attr_nonidx_data);
1181         driver_remove_file(&drv->driver, &driver_attr_idx_addr);
1182         driver_remove_file(&drv->driver, &driver_attr_idx_data);
1183         driver_remove_file(&drv->driver, &driver_attr_wqm_quanta);
1184 }
1185
1186 /**
1187  * nes_init_module - module initialization entry point
1188  */
1189 static int __init nes_init_module(void)
1190 {
1191         int retval;
1192         int retval1;
1193
1194         retval = nes_cm_start();
1195         if (retval) {
1196                 printk(KERN_ERR PFX "Unable to start NetEffect iWARP CM.\n");
1197                 return retval;
1198         }
1199         retval = pci_register_driver(&nes_pci_driver);
1200         if (retval >= 0) {
1201                 retval1 = nes_create_driver_sysfs(&nes_pci_driver);
1202                 if (retval1 < 0)
1203                         printk(KERN_ERR PFX "Unable to create NetEffect sys files.\n");
1204         }
1205         return retval;
1206 }
1207
1208
1209 /**
1210  * nes_exit_module - module unload entry point
1211  */
1212 static void __exit nes_exit_module(void)
1213 {
1214         nes_cm_stop();
1215         nes_remove_driver_sysfs(&nes_pci_driver);
1216
1217         pci_unregister_driver(&nes_pci_driver);
1218 }
1219
1220
1221 module_init(nes_init_module);
1222 module_exit(nes_exit_module);