Pileus Git - ~andy/linux/blob - 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
 148         nes_debug(NES_DBG_NETDEV, "nes_inetaddr_event: ip address %pI4, netmask %pI4.\n",
 149                   &ifa->ifa_address, &ifa->ifa_mask);
 150         list_for_each_entry(nesdev, &nes_dev_list, list) {
 151                 nes_debug(NES_DBG_NETDEV, "Nesdev list entry = 0x%p. (%s)\n",
 152                                 nesdev, nesdev->netdev[0]->name);
 153                 netdev = nesdev->netdev[0];
 154                 nesvnic = netdev_priv(netdev);
 155                 if (netdev == event_netdev) {
 156                         if (nesvnic->rdma_enabled == 0) {
 157                                 nes_debug(NES_DBG_NETDEV, "Returning without processing event for %s since"
 158                                                 " RDMA is not enabled.\n",
 159                                                 netdev->name);
 160                                 return NOTIFY_OK;
 161                         }
 162                         /* we have ifa->ifa_address/mask here if we need it */
 163                         switch (event) {
 164                                 case NETDEV_DOWN:
 165                                         nes_debug(NES_DBG_NETDEV, "event:DOWN\n");
 166                                         nes_write_indexed(nesdev,
 167                                                         NES_IDX_DST_IP_ADDR+(0x10*PCI_FUNC(nesdev->pcidev->devfn)), 0);
 168
 169                                         nes_manage_arp_cache(netdev, netdev->dev_addr,
 170                                                         ntohl(nesvnic->local_ipaddr), NES_ARP_DELETE);
 171                                         nesvnic->local_ipaddr = 0;
 172                                         return NOTIFY_OK;
 173                                         break;
 174                                 case NETDEV_UP:
 175                                         nes_debug(NES_DBG_NETDEV, "event:UP\n");
 176
 177                                         if (nesvnic->local_ipaddr != 0) {
 178                                                 nes_debug(NES_DBG_NETDEV, "Interface already has local_ipaddr\n");
 179                                                 return NOTIFY_OK;
 180                                         }
 181                                         /* Add the address to the IP table */
 182                                         nesvnic->local_ipaddr = ifa->ifa_address;
 183
 184                                         nes_write_indexed(nesdev,
 185                                                         NES_IDX_DST_IP_ADDR+(0x10*PCI_FUNC(nesdev->pcidev->devfn)),
 186                                                         ntohl(ifa->ifa_address));
 187                                         nes_manage_arp_cache(netdev, netdev->dev_addr,
 188                                                         ntohl(nesvnic->local_ipaddr), NES_ARP_ADD);
 189                                         return NOTIFY_OK;
 190                                         break;
 191                                 default:
 192                                         break;
 193                         }
 194                 }
 195         }
 196
 197         return NOTIFY_DONE;
 198 }
 199
 200
 201 /**
 202  * nes_net_event
 203  */
 204 static int nes_net_event(struct notifier_block *notifier,
 205                 unsigned long event, void *ptr)
 206 {
 207         struct neighbour *neigh = ptr;
 208         struct nes_device *nesdev;
 209         struct net_device *netdev;
 210         struct nes_vnic *nesvnic;
 211
 212         switch (event) {
 213                 case NETEVENT_NEIGH_UPDATE:
 214                         list_for_each_entry(nesdev, &nes_dev_list, list) {
 215                                 /* nes_debug(NES_DBG_NETDEV, "Nesdev list entry = 0x%p.\n", nesdev); */
 216                                 netdev = nesdev->netdev[0];
 217                                 nesvnic = netdev_priv(netdev);
 218                                 if (netdev == neigh->dev) {
 219                                         if (nesvnic->rdma_enabled == 0) {
 220                                                 nes_debug(NES_DBG_NETDEV, "Skipping device %s since no RDMA\n",
 221                                                                 netdev->name);
 222                                         } else {
 223                                                 if (neigh->nud_state & NUD_VALID) {
 224                                                         nes_manage_arp_cache(neigh->dev, neigh->ha,
 225                                                                         ntohl(*(__be32 *)neigh->primary_key), NES_ARP_ADD);
 226                                                 } else {
 227                                                         nes_manage_arp_cache(neigh->dev, neigh->ha,
 228                                                                         ntohl(*(__be32 *)neigh->primary_key), NES_ARP_DELETE);
 229                                                 }
 230                                         }
 231                                         return NOTIFY_OK;
 232                                 }
 233                         }
 234                         break;
 235                 default:
 236                         nes_debug(NES_DBG_NETDEV, "NETEVENT_ %lu undefined\n", event);
 237                         break;
 238         }
 239
 240         return NOTIFY_DONE;
 241 }
 242
 243
 244 /**
 245  * nes_add_ref
 246  */
 247 void nes_add_ref(struct ib_qp *ibqp)
 248 {
 249         struct nes_qp *nesqp;
 250
 251         nesqp = to_nesqp(ibqp);
 252         nes_debug(NES_DBG_QP, "Bumping refcount for QP%u.  Pre-inc value = %u\n",
 253                         ibqp->qp_num, atomic_read(&nesqp->refcount));
 254         atomic_inc(&nesqp->refcount);
 255 }
 256
 257 static void nes_cqp_rem_ref_callback(struct nes_device *nesdev, struct nes_cqp_request *cqp_request)
 258 {
 259         unsigned long flags;
 260         struct nes_qp *nesqp = cqp_request->cqp_callback_pointer;
 261         struct nes_adapter *nesadapter = nesdev->nesadapter;
 262
 263         atomic_inc(&qps_destroyed);
 264
 265         /* Free the control structures */
 266
 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         void __iomem *mmio_regs = NULL;
 443         u8 hw_rev;
 444
 445         assert(pcidev != NULL);
 446         assert(ent != NULL);
 447
 448         printk(KERN_INFO PFX "NetEffect RNIC driver v%s loading. (%s)\n",
 449                         DRV_VERSION, pci_name(pcidev));
 450
 451         ret = pci_enable_device(pcidev);
 452         if (ret) {
 453                 printk(KERN_ERR PFX "Unable to enable PCI device. (%s)\n", pci_name(pcidev));
 454                 goto bail0;
 455         }
 456
 457         nes_debug(NES_DBG_INIT, "BAR0 (@0x%08lX) size = 0x%lX bytes\n",
 458                         (long unsigned int)pci_resource_start(pcidev, BAR_0),
 459                         (long unsigned int)pci_resource_len(pcidev, BAR_0));
 460         nes_debug(NES_DBG_INIT, "BAR1 (@0x%08lX) size = 0x%lX bytes\n",
 461                         (long unsigned int)pci_resource_start(pcidev, BAR_1),
 462                         (long unsigned int)pci_resource_len(pcidev, BAR_1));
 463
 464         /* Make sure PCI base addr are MMIO */
 465         if (!(pci_resource_flags(pcidev, BAR_0) & IORESOURCE_MEM) ||
 466                         !(pci_resource_flags(pcidev, BAR_1) & IORESOURCE_MEM)) {
 467                 printk(KERN_ERR PFX "PCI regions not an MMIO resource\n");
 468                 ret = -ENODEV;
 469                 goto bail1;
 470         }
 471
 472         /* Reserve PCI I/O and memory resources */
 473         ret = pci_request_regions(pcidev, DRV_NAME);
 474         if (ret) {
 475                 printk(KERN_ERR PFX "Unable to request regions. (%s)\n", pci_name(pcidev));
 476                 goto bail1;
 477         }
 478
 479         if ((sizeof(dma_addr_t) > 4)) {
 480                 ret = pci_set_dma_mask(pcidev, DMA_BIT_MASK(64));
 481                 if (ret < 0) {
 482                         printk(KERN_ERR PFX "64b DMA mask configuration failed\n");
 483                         goto bail2;
 484                 }
 485                 ret = pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(64));
 486                 if (ret) {
 487                         printk(KERN_ERR PFX "64b DMA consistent mask configuration failed\n");
 488                         goto bail2;
 489                 }
 490         } else {
 491                 ret = pci_set_dma_mask(pcidev, DMA_BIT_MASK(32));
 492                 if (ret < 0) {
 493                         printk(KERN_ERR PFX "32b DMA mask configuration failed\n");
 494                         goto bail2;
 495                 }
 496                 ret = pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(32));
 497                 if (ret) {
 498                         printk(KERN_ERR PFX "32b DMA consistent mask configuration failed\n");
 499                         goto bail2;
 500                 }
 501         }
 502
 503         pci_set_master(pcidev);
 504
 505         /* Allocate hardware structure */
 506         nesdev = kzalloc(sizeof(struct nes_device), GFP_KERNEL);
 507         if (!nesdev) {
 508                 printk(KERN_ERR PFX "%s: Unable to alloc hardware struct\n", pci_name(pcidev));
 509                 ret = -ENOMEM;
 510                 goto bail2;
 511         }
 512
 513         nes_debug(NES_DBG_INIT, "Allocated nes device at %p\n", nesdev);
 514         nesdev->pcidev = pcidev;
 515         pci_set_drvdata(pcidev, nesdev);
 516
 517         pci_read_config_byte(pcidev, 0x0008, &hw_rev);
 518         nes_debug(NES_DBG_INIT, "hw_rev=%u\n", hw_rev);
 519
 520         spin_lock_init(&nesdev->indexed_regs_lock);
 521
 522         /* Remap the PCI registers in adapter BAR0 to kernel VA space */
 523         mmio_regs = ioremap_nocache(pci_resource_start(pcidev, BAR_0),
 524                                     pci_resource_len(pcidev, BAR_0));
 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
 678                 nesdev->netdev_count++;
 679                 nesdev->nesadapter->netdev_count++;
 680
 681
 682         printk(KERN_ERR PFX "%s: NetEffect RNIC driver successfully loaded.\n",
 683                         pci_name(pcidev));
 684         return 0;
 685
 686         bail7:
 687         printk(KERN_ERR PFX "bail7\n");
 688         while (nesdev->netdev_count > 0) {
 689                 nesdev->netdev_count--;
 690                 nesdev->nesadapter->netdev_count--;
 691
 692                 unregister_netdev(nesdev->netdev[nesdev->netdev_count]);
 693                 nes_netdev_destroy(nesdev->netdev[nesdev->netdev_count]);
 694         }
 695
 696         nes_debug(NES_DBG_INIT, "netdev_count=%d, nesadapter->netdev_count=%d\n",
 697                         nesdev->netdev_count, nesdev->nesadapter->netdev_count);
 698
 699         nes_notifiers_registered--;
 700         if (nes_notifiers_registered == 0) {
 701                 unregister_netevent_notifier(&nes_net_notifier);
 702                 unregister_inetaddr_notifier(&nes_inetaddr_notifier);
 703         }
 704
 705         list_del(&nesdev->list);
 706         nes_destroy_cqp(nesdev);
 707
 708         bail65:
 709         printk(KERN_ERR PFX "bail65\n");
 710         free_irq(pcidev->irq, nesdev);
 711         if (nesdev->msi_enabled) {
 712                 pci_disable_msi(pcidev);
 713         }
 714         bail6:
 715         printk(KERN_ERR PFX "bail6\n");
 716         tasklet_kill(&nesdev->dpc_tasklet);
 717         /* Deallocate the Adapter Structure */
 718         nes_destroy_adapter(nesdev->nesadapter);
 719
 720         bail5:
 721         printk(KERN_ERR PFX "bail5\n");
 722         iounmap(nesdev->regs);
 723
 724         bail3:
 725         printk(KERN_ERR PFX "bail3\n");
 726         kfree(nesdev);
 727
 728         bail2:
 729         pci_release_regions(pcidev);
 730
 731         bail1:
 732         pci_disable_device(pcidev);
 733
 734         bail0:
 735         return ret;
 736 }
 737
 738
 739 /**
 740  * nes_remove - unload from kernel
 741  */
 742 static void __devexit nes_remove(struct pci_dev *pcidev)
 743 {
 744         struct nes_device *nesdev = pci_get_drvdata(pcidev);
 745         struct net_device *netdev;
 746         int netdev_index = 0;
 747
 748                 if (nesdev->netdev_count) {
 749                         netdev = nesdev->netdev[netdev_index];
 750                         if (netdev) {
 751                                 netif_stop_queue(netdev);
 752                                 unregister_netdev(netdev);
 753                                 nes_netdev_destroy(netdev);
 754
 755                                 nesdev->netdev[netdev_index] = NULL;
 756                                 nesdev->netdev_count--;
 757                                 nesdev->nesadapter->netdev_count--;
 758                         }
 759                 }
 760
 761         nes_notifiers_registered--;
 762         if (nes_notifiers_registered == 0) {
 763                 unregister_netevent_notifier(&nes_net_notifier);
 764                 unregister_inetaddr_notifier(&nes_inetaddr_notifier);
 765         }
 766
 767         list_del(&nesdev->list);
 768         nes_destroy_cqp(nesdev);
 769
 770         free_irq(pcidev->irq, nesdev);
 771         tasklet_kill(&nesdev->dpc_tasklet);
 772
 773         /* Deallocate the Adapter Structure */
 774         nes_destroy_adapter(nesdev->nesadapter);
 775
 776         if (nesdev->msi_enabled) {
 777                 pci_disable_msi(pcidev);
 778         }
 779
 780         iounmap(nesdev->regs);
 781         kfree(nesdev);
 782
 783         /* nes_debug(NES_DBG_SHUTDOWN, "calling pci_release_regions.\n"); */
 784         pci_release_regions(pcidev);
 785         pci_disable_device(pcidev);
 786         pci_set_drvdata(pcidev, NULL);
 787 }
 788
 789
 790 static struct pci_driver nes_pci_driver = {
 791         .name = DRV_NAME,
 792         .id_table = nes_pci_table,
 793         .probe = nes_probe,
 794         .remove = __devexit_p(nes_remove),
 795 };
 796
 797 static ssize_t nes_show_adapter(struct device_driver *ddp, char *buf)
 798 {
 799         unsigned int  devfn = 0xffffffff;
 800         unsigned char bus_number = 0xff;
 801         unsigned int  i = 0;
 802         struct nes_device *nesdev;
 803
 804         list_for_each_entry(nesdev, &nes_dev_list, list) {
 805                 if (i == ee_flsh_adapter) {
 806                         devfn = nesdev->pcidev->devfn;
 807                         bus_number = nesdev->pcidev->bus->number;
 808                         break;
 809                 }
 810                 i++;
 811         }
 812
 813         return snprintf(buf, PAGE_SIZE, "%x:%x\n", bus_number, devfn);
 814 }
 815
 816 static ssize_t nes_store_adapter(struct device_driver *ddp,
 817         const char *buf, size_t count)
 818 {
 819         char *p = (char *)buf;
 820
 821         ee_flsh_adapter = simple_strtoul(p, &p, 10);
 822         return strnlen(buf, count);
 823 }
 824
 825 static ssize_t nes_show_ee_cmd(struct device_driver *ddp, char *buf)
 826 {
 827         u32 eeprom_cmd = 0xdead;
 828         u32 i = 0;
 829         struct nes_device *nesdev;
 830
 831         list_for_each_entry(nesdev, &nes_dev_list, list) {
 832                 if (i == ee_flsh_adapter) {
 833                         eeprom_cmd = nes_read32(nesdev->regs + NES_EEPROM_COMMAND);
 834                         break;
 835                 }
 836                 i++;
 837         }
 838         return snprintf(buf, PAGE_SIZE, "0x%x\n", eeprom_cmd);
 839 }
 840
 841 static ssize_t nes_store_ee_cmd(struct device_driver *ddp,
 842         const char *buf, size_t count)
 843 {
 844         char *p = (char *)buf;
 845         u32 val;
 846         u32 i = 0;
 847         struct nes_device *nesdev;
 848
 849         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
 850                 val = simple_strtoul(p, &p, 16);
 851                 list_for_each_entry(nesdev, &nes_dev_list, list) {
 852                         if (i == ee_flsh_adapter) {
 853                                 nes_write32(nesdev->regs + NES_EEPROM_COMMAND, val);
 854                                 break;
 855                         }
 856                         i++;
 857                 }
 858         }
 859         return strnlen(buf, count);
 860 }
 861
 862 static ssize_t nes_show_ee_data(struct device_driver *ddp, char *buf)
 863 {
 864         u32 eeprom_data = 0xdead;
 865         u32 i = 0;
 866         struct nes_device *nesdev;
 867
 868         list_for_each_entry(nesdev, &nes_dev_list, list) {
 869                 if (i == ee_flsh_adapter) {
 870                         eeprom_data = nes_read32(nesdev->regs + NES_EEPROM_DATA);
 871                         break;
 872                 }
 873                 i++;
 874         }
 875
 876         return  snprintf(buf, PAGE_SIZE, "0x%x\n", eeprom_data);
 877 }
 878
 879 static ssize_t nes_store_ee_data(struct device_driver *ddp,
 880         const char *buf, size_t count)
 881 {
 882         char *p = (char *)buf;
 883         u32 val;
 884         u32 i = 0;
 885         struct nes_device *nesdev;
 886
 887         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
 888                 val = simple_strtoul(p, &p, 16);
 889                 list_for_each_entry(nesdev, &nes_dev_list, list) {
 890                         if (i == ee_flsh_adapter) {
 891                                 nes_write32(nesdev->regs + NES_EEPROM_DATA, val);
 892                                 break;
 893                         }
 894                         i++;
 895                 }
 896         }
 897         return strnlen(buf, count);
 898 }
 899
 900 static ssize_t nes_show_flash_cmd(struct device_driver *ddp, char *buf)
 901 {
 902         u32 flash_cmd = 0xdead;
 903         u32 i = 0;
 904         struct nes_device *nesdev;
 905
 906         list_for_each_entry(nesdev, &nes_dev_list, list) {
 907                 if (i == ee_flsh_adapter) {
 908                         flash_cmd = nes_read32(nesdev->regs + NES_FLASH_COMMAND);
 909                         break;
 910                 }
 911                 i++;
 912         }
 913
 914         return  snprintf(buf, PAGE_SIZE, "0x%x\n", flash_cmd);
 915 }
 916
 917 static ssize_t nes_store_flash_cmd(struct device_driver *ddp,
 918         const char *buf, size_t count)
 919 {
 920         char *p = (char *)buf;
 921         u32 val;
 922         u32 i = 0;
 923         struct nes_device *nesdev;
 924
 925         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
 926                 val = simple_strtoul(p, &p, 16);
 927                 list_for_each_entry(nesdev, &nes_dev_list, list) {
 928                         if (i == ee_flsh_adapter) {
 929                                 nes_write32(nesdev->regs + NES_FLASH_COMMAND, val);
 930                                 break;
 931                         }
 932                         i++;
 933                 }
 934         }
 935         return strnlen(buf, count);
 936 }
 937
 938 static ssize_t nes_show_flash_data(struct device_driver *ddp, char *buf)
 939 {
 940         u32 flash_data = 0xdead;
 941         u32 i = 0;
 942         struct nes_device *nesdev;
 943
 944         list_for_each_entry(nesdev, &nes_dev_list, list) {
 945                 if (i == ee_flsh_adapter) {
 946                         flash_data = nes_read32(nesdev->regs + NES_FLASH_DATA);
 947                         break;
 948                 }
 949                 i++;
 950         }
 951
 952         return  snprintf(buf, PAGE_SIZE, "0x%x\n", flash_data);
 953 }
 954
 955 static ssize_t nes_store_flash_data(struct device_driver *ddp,
 956         const char *buf, size_t count)
 957 {
 958         char *p = (char *)buf;
 959         u32 val;
 960         u32 i = 0;
 961         struct nes_device *nesdev;
 962
 963         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
 964                 val = simple_strtoul(p, &p, 16);
 965                 list_for_each_entry(nesdev, &nes_dev_list, list) {
 966                         if (i == ee_flsh_adapter) {
 967                                 nes_write32(nesdev->regs + NES_FLASH_DATA, val);
 968                                 break;
 969                         }
 970                         i++;
 971                 }
 972         }
 973         return strnlen(buf, count);
 974 }
 975
 976 static ssize_t nes_show_nonidx_addr(struct device_driver *ddp, char *buf)
 977 {
 978         return  snprintf(buf, PAGE_SIZE, "0x%x\n", sysfs_nonidx_addr);
 979 }
 980
 981 static ssize_t nes_store_nonidx_addr(struct device_driver *ddp,
 982         const char *buf, size_t count)
 983 {
 984         char *p = (char *)buf;
 985
 986         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X')
 987                 sysfs_nonidx_addr = simple_strtoul(p, &p, 16);
 988
 989         return strnlen(buf, count);
 990 }
 991
 992 static ssize_t nes_show_nonidx_data(struct device_driver *ddp, char *buf)
 993 {
 994         u32 nonidx_data = 0xdead;
 995         u32 i = 0;
 996         struct nes_device *nesdev;
 997
 998         list_for_each_entry(nesdev, &nes_dev_list, list) {
 999                 if (i == ee_flsh_adapter) {
1000                         nonidx_data = nes_read32(nesdev->regs + sysfs_nonidx_addr);
1001                         break;
1002                 }
1003                 i++;
1004         }
1005
1006         return  snprintf(buf, PAGE_SIZE, "0x%x\n", nonidx_data);
1007 }
1008
1009 static ssize_t nes_store_nonidx_data(struct device_driver *ddp,
1010         const char *buf, size_t count)
1011 {
1012         char *p = (char *)buf;
1013         u32 val;
1014         u32 i = 0;
1015         struct nes_device *nesdev;
1016
1017         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
1018                 val = simple_strtoul(p, &p, 16);
1019                 list_for_each_entry(nesdev, &nes_dev_list, list) {
1020                         if (i == ee_flsh_adapter) {
1021                                 nes_write32(nesdev->regs + sysfs_nonidx_addr, val);
1022                                 break;
1023                         }
1024                         i++;
1025                 }
1026         }
1027         return strnlen(buf, count);
1028 }
1029
1030 static ssize_t nes_show_idx_addr(struct device_driver *ddp, char *buf)
1031 {
1032         return  snprintf(buf, PAGE_SIZE, "0x%x\n", sysfs_idx_addr);
1033 }
1034
1035 static ssize_t nes_store_idx_addr(struct device_driver *ddp,
1036         const char *buf, size_t count)
1037 {
1038         char *p = (char *)buf;
1039
1040         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X')
1041                 sysfs_idx_addr = simple_strtoul(p, &p, 16);
1042
1043         return strnlen(buf, count);
1044 }
1045
1046 static ssize_t nes_show_idx_data(struct device_driver *ddp, char *buf)
1047 {
1048         u32 idx_data = 0xdead;
1049         u32 i = 0;
1050         struct nes_device *nesdev;
1051
1052         list_for_each_entry(nesdev, &nes_dev_list, list) {
1053                 if (i == ee_flsh_adapter) {
1054                         idx_data = nes_read_indexed(nesdev, sysfs_idx_addr);
1055                         break;
1056                 }
1057                 i++;
1058         }
1059
1060         return  snprintf(buf, PAGE_SIZE, "0x%x\n", idx_data);
1061 }
1062
1063 static ssize_t nes_store_idx_data(struct device_driver *ddp,
1064         const char *buf, size_t count)
1065 {
1066         char *p = (char *)buf;
1067         u32 val;
1068         u32 i = 0;
1069         struct nes_device *nesdev;
1070
1071         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
1072                 val = simple_strtoul(p, &p, 16);
1073                 list_for_each_entry(nesdev, &nes_dev_list, list) {
1074                         if (i == ee_flsh_adapter) {
1075                                 nes_write_indexed(nesdev, sysfs_idx_addr, val);
1076                                 break;
1077                         }
1078                         i++;
1079                 }
1080         }
1081         return strnlen(buf, count);
1082 }
1083
1084
1085 /**
1086  * nes_show_wqm_quanta
1087  */
1088 static ssize_t nes_show_wqm_quanta(struct device_driver *ddp, char *buf)
1089 {
1090         u32 wqm_quanta_value = 0xdead;
1091         u32 i = 0;
1092         struct nes_device *nesdev;
1093
1094         list_for_each_entry(nesdev, &nes_dev_list, list) {
1095                 if (i == ee_flsh_adapter) {
1096                         wqm_quanta_value = nesdev->nesadapter->wqm_quanta;
1097                         break;
1098                 }
1099                 i++;
1100         }
1101
1102         return  snprintf(buf, PAGE_SIZE, "0x%X\n", wqm_quanta);
1103 }
1104
1105
1106 /**
1107  * nes_store_wqm_quanta
1108  */
1109 static ssize_t nes_store_wqm_quanta(struct device_driver *ddp,
1110                                         const char *buf, size_t count)
1111 {
1112         unsigned long wqm_quanta_value;
1113         u32 wqm_config1;
1114         u32 i = 0;
1115         struct nes_device *nesdev;
1116
1117         strict_strtoul(buf, 0, &wqm_quanta_value);
1118         list_for_each_entry(nesdev, &nes_dev_list, list) {
1119                 if (i == ee_flsh_adapter) {
1120                         nesdev->nesadapter->wqm_quanta = wqm_quanta_value;
1121                         wqm_config1 = nes_read_indexed(nesdev,
1122                                                 NES_IDX_WQM_CONFIG1);
1123                         nes_write_indexed(nesdev, NES_IDX_WQM_CONFIG1,
1124                                         ((wqm_quanta_value << 1) |
1125                                         (wqm_config1 & 0x00000001)));
1126                         break;
1127                 }
1128                 i++;
1129         }
1130         return strnlen(buf, count);
1131 }
1132
1133 static DRIVER_ATTR(adapter, S_IRUSR | S_IWUSR,
1134                    nes_show_adapter, nes_store_adapter);
1135 static DRIVER_ATTR(eeprom_cmd, S_IRUSR | S_IWUSR,
1136                    nes_show_ee_cmd, nes_store_ee_cmd);
1137 static DRIVER_ATTR(eeprom_data, S_IRUSR | S_IWUSR,
1138                    nes_show_ee_data, nes_store_ee_data);
1139 static DRIVER_ATTR(flash_cmd, S_IRUSR | S_IWUSR,
1140                    nes_show_flash_cmd, nes_store_flash_cmd);
1141 static DRIVER_ATTR(flash_data, S_IRUSR | S_IWUSR,
1142                    nes_show_flash_data, nes_store_flash_data);
1143 static DRIVER_ATTR(nonidx_addr, S_IRUSR | S_IWUSR,
1144                    nes_show_nonidx_addr, nes_store_nonidx_addr);
1145 static DRIVER_ATTR(nonidx_data, S_IRUSR | S_IWUSR,
1146                    nes_show_nonidx_data, nes_store_nonidx_data);
1147 static DRIVER_ATTR(idx_addr, S_IRUSR | S_IWUSR,
1148                    nes_show_idx_addr, nes_store_idx_addr);
1149 static DRIVER_ATTR(idx_data, S_IRUSR | S_IWUSR,
1150                    nes_show_idx_data, nes_store_idx_data);
1151 static DRIVER_ATTR(wqm_quanta, S_IRUSR | S_IWUSR,
1152                    nes_show_wqm_quanta, nes_store_wqm_quanta);
1153
1154 static int nes_create_driver_sysfs(struct pci_driver *drv)
1155 {
1156         int error;
1157         error  = driver_create_file(&drv->driver, &driver_attr_adapter);
1158         error |= driver_create_file(&drv->driver, &driver_attr_eeprom_cmd);
1159         error |= driver_create_file(&drv->driver, &driver_attr_eeprom_data);
1160         error |= driver_create_file(&drv->driver, &driver_attr_flash_cmd);
1161         error |= driver_create_file(&drv->driver, &driver_attr_flash_data);
1162         error |= driver_create_file(&drv->driver, &driver_attr_nonidx_addr);
1163         error |= driver_create_file(&drv->driver, &driver_attr_nonidx_data);
1164         error |= driver_create_file(&drv->driver, &driver_attr_idx_addr);
1165         error |= driver_create_file(&drv->driver, &driver_attr_idx_data);
1166         error |= driver_create_file(&drv->driver, &driver_attr_wqm_quanta);
1167         return error;
1168 }
1169
1170 static void nes_remove_driver_sysfs(struct pci_driver *drv)
1171 {
1172         driver_remove_file(&drv->driver, &driver_attr_adapter);
1173         driver_remove_file(&drv->driver, &driver_attr_eeprom_cmd);
1174         driver_remove_file(&drv->driver, &driver_attr_eeprom_data);
1175         driver_remove_file(&drv->driver, &driver_attr_flash_cmd);
1176         driver_remove_file(&drv->driver, &driver_attr_flash_data);
1177         driver_remove_file(&drv->driver, &driver_attr_nonidx_addr);
1178         driver_remove_file(&drv->driver, &driver_attr_nonidx_data);
1179         driver_remove_file(&drv->driver, &driver_attr_idx_addr);
1180         driver_remove_file(&drv->driver, &driver_attr_idx_data);
1181         driver_remove_file(&drv->driver, &driver_attr_wqm_quanta);
1182 }
1183
1184 /**
1185  * nes_init_module - module initialization entry point
1186  */
1187 static int __init nes_init_module(void)
1188 {
1189         int retval;
1190         int retval1;
1191
1192         retval = nes_cm_start();
1193         if (retval) {
1194                 printk(KERN_ERR PFX "Unable to start NetEffect iWARP CM.\n");
1195                 return retval;
1196         }
1197         retval = pci_register_driver(&nes_pci_driver);
1198         if (retval >= 0) {
1199                 retval1 = nes_create_driver_sysfs(&nes_pci_driver);
1200                 if (retval1 < 0)
1201                         printk(KERN_ERR PFX "Unable to create NetEffect sys files.\n");
1202         }
1203         return retval;
1204 }
1205
1206
1207 /**
1208  * nes_exit_module - module unload entry point
1209  */
1210 static void __exit nes_exit_module(void)
1211 {
1212         nes_cm_stop();
1213         nes_remove_driver_sysfs(&nes_pci_driver);
1214
1215         pci_unregister_driver(&nes_pci_driver);
1216 }
1217
1218
1219 module_init(nes_init_module);
1220 module_exit(nes_exit_module);