drivers/infiniband/hw/nes/nes.c

   1 /*
   2  * Copyright (c) 2006 - 2011 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 /* 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 nes_drv_opt = NES_DRV_OPT_DISABLE_INT_MOD | NES_DRV_OPT_ENABLE_PAU;
  82 module_param(nes_drv_opt, int, 0644);
  83 MODULE_PARM_DESC(nes_drv_opt, "Driver option parameters");
  84
  85 unsigned int nes_debug_level = 0;
  86 module_param_named(debug_level, nes_debug_level, uint, 0644);
  87 MODULE_PARM_DESC(debug_level, "Enable debug output level");
  88
  89 unsigned int wqm_quanta = 0x10000;
  90 module_param(wqm_quanta, int, 0644);
  91 MODULE_PARM_DESC(wqm_quanta, "WQM quanta");
  92
  93 static bool limit_maxrdreqsz;
  94 module_param(limit_maxrdreqsz, bool, 0644);
  95 MODULE_PARM_DESC(limit_maxrdreqsz, "Limit max read request size to 256 Bytes");
  96
  97 LIST_HEAD(nes_adapter_list);
  98 static LIST_HEAD(nes_dev_list);
  99
 100 atomic_t qps_destroyed;
 101
 102 static unsigned int ee_flsh_adapter;
 103 static unsigned int sysfs_nonidx_addr;
 104 static unsigned int sysfs_idx_addr;
 105
 106 static struct pci_device_id nes_pci_table[] = {
 107         { PCI_VDEVICE(NETEFFECT, PCI_DEVICE_ID_NETEFFECT_NE020), },
 108         { PCI_VDEVICE(NETEFFECT, PCI_DEVICE_ID_NETEFFECT_NE020_KR), },
 109         {0}
 110 };
 111
 112 MODULE_DEVICE_TABLE(pci, nes_pci_table);
 113
 114 static int nes_inetaddr_event(struct notifier_block *, unsigned long, void *);
 115 static int nes_net_event(struct notifier_block *, unsigned long, void *);
 116 static int nes_notifiers_registered;
 117
 118
 119 static struct notifier_block nes_inetaddr_notifier = {
 120         .notifier_call = nes_inetaddr_event
 121 };
 122
 123 static struct notifier_block nes_net_notifier = {
 124         .notifier_call = nes_net_event
 125 };
 126
 127 /**
 128  * nes_inetaddr_event
 129  */
 130 static int nes_inetaddr_event(struct notifier_block *notifier,
 131                 unsigned long event, void *ptr)
 132 {
 133         struct in_ifaddr *ifa = ptr;
 134         struct net_device *event_netdev = ifa->ifa_dev->dev;
 135         struct nes_device *nesdev;
 136         struct net_device *netdev;
 137         struct net_device *upper_dev;
 138         struct nes_vnic *nesvnic;
 139         unsigned int is_bonded;
 140
 141         nes_debug(NES_DBG_NETDEV, "nes_inetaddr_event: ip address %pI4, netmask %pI4.\n",
 142                   &ifa->ifa_address, &ifa->ifa_mask);
 143         list_for_each_entry(nesdev, &nes_dev_list, list) {
 144                 nes_debug(NES_DBG_NETDEV, "Nesdev list entry = 0x%p. (%s)\n",
 145                                 nesdev, nesdev->netdev[0]->name);
 146                 netdev = nesdev->netdev[0];
 147                 nesvnic = netdev_priv(netdev);
 148                 upper_dev = netdev_master_upper_dev_get(netdev);
 149                 is_bonded = netif_is_bond_slave(netdev) &&
 150                             (upper_dev == event_netdev);
 151                 if ((netdev == event_netdev) || is_bonded) {
 152                         if (nesvnic->rdma_enabled == 0) {
 153                                 nes_debug(NES_DBG_NETDEV, "Returning without processing event for %s since"
 154                                                 " RDMA is not enabled.\n",
 155                                                 netdev->name);
 156                                 return NOTIFY_OK;
 157                         }
 158                         /* we have ifa->ifa_address/mask here if we need it */
 159                         switch (event) {
 160                                 case NETDEV_DOWN:
 161                                         nes_debug(NES_DBG_NETDEV, "event:DOWN\n");
 162                                         nes_write_indexed(nesdev,
 163                                                         NES_IDX_DST_IP_ADDR+(0x10*PCI_FUNC(nesdev->pcidev->devfn)), 0);
 164
 165                                         nes_manage_arp_cache(netdev, netdev->dev_addr,
 166                                                         ntohl(nesvnic->local_ipaddr), NES_ARP_DELETE);
 167                                         nesvnic->local_ipaddr = 0;
 168                                         if (is_bonded)
 169                                                 continue;
 170                                         else
 171                                                 return NOTIFY_OK;
 172                                         break;
 173                                 case NETDEV_UP:
 174                                         nes_debug(NES_DBG_NETDEV, "event:UP\n");
 175
 176                                         if (nesvnic->local_ipaddr != 0) {
 177                                                 nes_debug(NES_DBG_NETDEV, "Interface already has local_ipaddr\n");
 178                                                 return NOTIFY_OK;
 179                                         }
 180                                         /* fall through */
 181                                 case NETDEV_CHANGEADDR:
 182                                         /* Add the address to the IP table */
 183                                         if (upper_dev)
 184                                                 nesvnic->local_ipaddr =
 185                                                         ((struct in_device *)upper_dev->ip_ptr)->ifa_list->ifa_address;
 186                                         else
 187                                                 nesvnic->local_ipaddr = ifa->ifa_address;
 188
 189                                         nes_write_indexed(nesdev,
 190                                                         NES_IDX_DST_IP_ADDR+(0x10*PCI_FUNC(nesdev->pcidev->devfn)),
 191                                                         ntohl(nesvnic->local_ipaddr));
 192                                         nes_manage_arp_cache(netdev, netdev->dev_addr,
 193                                                         ntohl(nesvnic->local_ipaddr), NES_ARP_ADD);
 194                                         if (is_bonded)
 195                                                 continue;
 196                                         else
 197                                                 return NOTIFY_OK;
 198                                         break;
 199                                 default:
 200                                         break;
 201                         }
 202                 }
 203         }
 204
 205         return NOTIFY_DONE;
 206 }
 207
 208
 209 /**
 210  * nes_net_event
 211  */
 212 static int nes_net_event(struct notifier_block *notifier,
 213                 unsigned long event, void *ptr)
 214 {
 215         struct neighbour *neigh = ptr;
 216         struct nes_device *nesdev;
 217         struct net_device *netdev;
 218         struct nes_vnic *nesvnic;
 219
 220         switch (event) {
 221                 case NETEVENT_NEIGH_UPDATE:
 222                         list_for_each_entry(nesdev, &nes_dev_list, list) {
 223                                 /* nes_debug(NES_DBG_NETDEV, "Nesdev list entry = 0x%p.\n", nesdev); */
 224                                 netdev = nesdev->netdev[0];
 225                                 nesvnic = netdev_priv(netdev);
 226                                 if (netdev == neigh->dev) {
 227                                         if (nesvnic->rdma_enabled == 0) {
 228                                                 nes_debug(NES_DBG_NETDEV, "Skipping device %s since no RDMA\n",
 229                                                                 netdev->name);
 230                                         } else {
 231                                                 if (neigh->nud_state & NUD_VALID) {
 232                                                         nes_manage_arp_cache(neigh->dev, neigh->ha,
 233                                                                         ntohl(*(__be32 *)neigh->primary_key), NES_ARP_ADD);
 234                                                 } else {
 235                                                         nes_manage_arp_cache(neigh->dev, neigh->ha,
 236                                                                         ntohl(*(__be32 *)neigh->primary_key), NES_ARP_DELETE);
 237                                                 }
 238                                         }
 239                                         return NOTIFY_OK;
 240                                 }
 241                         }
 242                         break;
 243                 default:
 244                         nes_debug(NES_DBG_NETDEV, "NETEVENT_ %lu undefined\n", event);
 245                         break;
 246         }
 247
 248         return NOTIFY_DONE;
 249 }
 250
 251
 252 /**
 253  * nes_add_ref
 254  */
 255 void nes_add_ref(struct ib_qp *ibqp)
 256 {
 257         struct nes_qp *nesqp;
 258
 259         nesqp = to_nesqp(ibqp);
 260         nes_debug(NES_DBG_QP, "Bumping refcount for QP%u.  Pre-inc value = %u\n",
 261                         ibqp->qp_num, atomic_read(&nesqp->refcount));
 262         atomic_inc(&nesqp->refcount);
 263 }
 264
 265 static void nes_cqp_rem_ref_callback(struct nes_device *nesdev, struct nes_cqp_request *cqp_request)
 266 {
 267         unsigned long flags;
 268         struct nes_qp *nesqp = cqp_request->cqp_callback_pointer;
 269         struct nes_adapter *nesadapter = nesdev->nesadapter;
 270
 271         atomic_inc(&qps_destroyed);
 272
 273         /* Free the control structures */
 274
 275         if (nesqp->pbl_vbase) {
 276                 pci_free_consistent(nesdev->pcidev, nesqp->qp_mem_size,
 277                                 nesqp->hwqp.q2_vbase, nesqp->hwqp.q2_pbase);
 278                 spin_lock_irqsave(&nesadapter->pbl_lock, flags);
 279                 nesadapter->free_256pbl++;
 280                 spin_unlock_irqrestore(&nesadapter->pbl_lock, flags);
 281                 pci_free_consistent(nesdev->pcidev, 256, nesqp->pbl_vbase, nesqp->pbl_pbase);
 282                 nesqp->pbl_vbase = NULL;
 283
 284         } else {
 285                 pci_free_consistent(nesdev->pcidev, nesqp->qp_mem_size,
 286                                 nesqp->hwqp.sq_vbase, nesqp->hwqp.sq_pbase);
 287         }
 288         nes_free_resource(nesadapter, nesadapter->allocated_qps, nesqp->hwqp.qp_id);
 289
 290         nesadapter->qp_table[nesqp->hwqp.qp_id-NES_FIRST_QPN] = NULL;
 291         kfree(nesqp->allocated_buffer);
 292
 293 }
 294
 295 /**
 296  * nes_rem_ref
 297  */
 298 void nes_rem_ref(struct ib_qp *ibqp)
 299 {
 300         u64 u64temp;
 301         struct nes_qp *nesqp;
 302         struct nes_vnic *nesvnic = to_nesvnic(ibqp->device);
 303         struct nes_device *nesdev = nesvnic->nesdev;
 304         struct nes_hw_cqp_wqe *cqp_wqe;
 305         struct nes_cqp_request *cqp_request;
 306         u32 opcode;
 307
 308         nesqp = to_nesqp(ibqp);
 309
 310         if (atomic_read(&nesqp->refcount) == 0) {
 311                 printk(KERN_INFO PFX "%s: Reference count already 0 for QP%d, last aeq = 0x%04X.\n",
 312                                 __func__, ibqp->qp_num, nesqp->last_aeq);
 313                 BUG();
 314         }
 315
 316         if (atomic_dec_and_test(&nesqp->refcount)) {
 317                 if (nesqp->pau_mode)
 318                         nes_destroy_pau_qp(nesdev, nesqp);
 319
 320                 /* Destroy the QP */
 321                 cqp_request = nes_get_cqp_request(nesdev);
 322                 if (cqp_request == NULL) {
 323                         nes_debug(NES_DBG_QP, "Failed to get a cqp_request.\n");
 324                         return;
 325                 }
 326                 cqp_request->waiting = 0;
 327                 cqp_request->callback = 1;
 328                 cqp_request->cqp_callback = nes_cqp_rem_ref_callback;
 329                 cqp_request->cqp_callback_pointer = nesqp;
 330                 cqp_wqe = &cqp_request->cqp_wqe;
 331
 332                 nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
 333                 opcode = NES_CQP_DESTROY_QP | NES_CQP_QP_TYPE_IWARP;
 334
 335                 if (nesqp->hte_added) {
 336                         opcode  |= NES_CQP_QP_DEL_HTE;
 337                         nesqp->hte_added = 0;
 338                 }
 339                 set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, opcode);
 340                 set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX, nesqp->hwqp.qp_id);
 341                 u64temp = (u64)nesqp->nesqp_context_pbase;
 342                 set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_QP_WQE_CONTEXT_LOW_IDX, u64temp);
 343                 nes_post_cqp_request(nesdev, cqp_request);
 344         }
 345 }
 346
 347
 348 /**
 349  * nes_get_qp
 350  */
 351 struct ib_qp *nes_get_qp(struct ib_device *device, int qpn)
 352 {
 353         struct nes_vnic *nesvnic = to_nesvnic(device);
 354         struct nes_device *nesdev = nesvnic->nesdev;
 355         struct nes_adapter *nesadapter = nesdev->nesadapter;
 356
 357         if ((qpn < NES_FIRST_QPN) || (qpn >= (NES_FIRST_QPN + nesadapter->max_qp)))
 358                 return NULL;
 359
 360         return &nesadapter->qp_table[qpn - NES_FIRST_QPN]->ibqp;
 361 }
 362
 363
 364 /**
 365  * nes_print_macaddr
 366  */
 367 static void nes_print_macaddr(struct net_device *netdev)
 368 {
 369         nes_debug(NES_DBG_INIT, "%s: %pM, IRQ %u\n",
 370                   netdev->name, netdev->dev_addr, netdev->irq);
 371 }
 372
 373 /**
 374  * nes_interrupt - handle interrupts
 375  */
 376 static irqreturn_t nes_interrupt(int irq, void *dev_id)
 377 {
 378         struct nes_device *nesdev = (struct nes_device *)dev_id;
 379         int handled = 0;
 380         u32 int_mask;
 381         u32 int_req;
 382         u32 int_stat;
 383         u32 intf_int_stat;
 384         u32 timer_stat;
 385
 386         if (nesdev->msi_enabled) {
 387                 /* No need to read the interrupt pending register if msi is enabled */
 388                 handled = 1;
 389         } else {
 390                 if (unlikely(nesdev->nesadapter->hw_rev == NE020_REV)) {
 391                         /* Master interrupt enable provides synchronization for kicking off bottom half
 392                           when interrupt sharing is going on */
 393                         int_mask = nes_read32(nesdev->regs + NES_INT_MASK);
 394                         if (int_mask & 0x80000000) {
 395                                 /* Check interrupt status to see if this might be ours */
 396                                 int_stat = nes_read32(nesdev->regs + NES_INT_STAT);
 397                                 int_req = nesdev->int_req;
 398                                 if (int_stat&int_req) {
 399                                         /* if interesting CEQ or AEQ is pending, claim the interrupt */
 400                                         if ((int_stat&int_req) & (~(NES_INT_TIMER|NES_INT_INTF))) {
 401                                                 handled = 1;
 402                                         } else {
 403                                                 if (((int_stat & int_req) & NES_INT_TIMER) == NES_INT_TIMER) {
 404                                                         /* Timer might be running but might be for another function */
 405                                                         timer_stat = nes_read32(nesdev->regs + NES_TIMER_STAT);
 406                                                         if ((timer_stat & nesdev->timer_int_req) != 0) {
 407                                                                 handled = 1;
 408                                                         }
 409                                                 }
 410                                                 if ((((int_stat & int_req) & NES_INT_INTF) == NES_INT_INTF) &&
 411                                                                 (handled == 0)) {
 412                                                         intf_int_stat = nes_read32(nesdev->regs+NES_INTF_INT_STAT);
 413                                                         if ((intf_int_stat & nesdev->intf_int_req) != 0) {
 414                                                                 handled = 1;
 415                                                         }
 416                                                 }
 417                                         }
 418                                         if (handled) {
 419                                                 nes_write32(nesdev->regs+NES_INT_MASK, int_mask & (~0x80000000));
 420                                                 int_mask = nes_read32(nesdev->regs+NES_INT_MASK);
 421                                                 /* Save off the status to save an additional read */
 422                                                 nesdev->int_stat = int_stat;
 423                                                 nesdev->napi_isr_ran = 1;
 424                                         }
 425                                 }
 426                         }
 427                 } else {
 428                         handled = nes_read32(nesdev->regs+NES_INT_PENDING);
 429                 }
 430         }
 431
 432         if (handled) {
 433
 434                 if (nes_napi_isr(nesdev) == 0) {
 435                         tasklet_schedule(&nesdev->dpc_tasklet);
 436
 437                 }
 438                 return IRQ_HANDLED;
 439         } else {
 440                 return IRQ_NONE;
 441         }
 442 }
 443
 444
 445 /**
 446  * nes_probe - Device initialization
 447  */
 448 static int nes_probe(struct pci_dev *pcidev, const struct pci_device_id *ent)
 449 {
 450         struct net_device *netdev = NULL;
 451         struct nes_device *nesdev = NULL;
 452         int ret = 0;
 453         void __iomem *mmio_regs = NULL;
 454         u8 hw_rev;
 455
 456         assert(pcidev != NULL);
 457         assert(ent != NULL);
 458
 459         printk(KERN_INFO PFX "NetEffect RNIC driver v%s loading. (%s)\n",
 460                         DRV_VERSION, pci_name(pcidev));
 461
 462         ret = pci_enable_device(pcidev);
 463         if (ret) {
 464                 printk(KERN_ERR PFX "Unable to enable PCI device. (%s)\n", pci_name(pcidev));
 465                 goto bail0;
 466         }
 467
 468         nes_debug(NES_DBG_INIT, "BAR0 (@0x%08lX) size = 0x%lX bytes\n",
 469                         (long unsigned int)pci_resource_start(pcidev, BAR_0),
 470                         (long unsigned int)pci_resource_len(pcidev, BAR_0));
 471         nes_debug(NES_DBG_INIT, "BAR1 (@0x%08lX) size = 0x%lX bytes\n",
 472                         (long unsigned int)pci_resource_start(pcidev, BAR_1),
 473                         (long unsigned int)pci_resource_len(pcidev, BAR_1));
 474
 475         /* Make sure PCI base addr are MMIO */
 476         if (!(pci_resource_flags(pcidev, BAR_0) & IORESOURCE_MEM) ||
 477                         !(pci_resource_flags(pcidev, BAR_1) & IORESOURCE_MEM)) {
 478                 printk(KERN_ERR PFX "PCI regions not an MMIO resource\n");
 479                 ret = -ENODEV;
 480                 goto bail1;
 481         }
 482
 483         /* Reserve PCI I/O and memory resources */
 484         ret = pci_request_regions(pcidev, DRV_NAME);
 485         if (ret) {
 486                 printk(KERN_ERR PFX "Unable to request regions. (%s)\n", pci_name(pcidev));
 487                 goto bail1;
 488         }
 489
 490         if ((sizeof(dma_addr_t) > 4)) {
 491                 ret = pci_set_dma_mask(pcidev, DMA_BIT_MASK(64));
 492                 if (ret < 0) {
 493                         printk(KERN_ERR PFX "64b DMA mask configuration failed\n");
 494                         goto bail2;
 495                 }
 496                 ret = pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(64));
 497                 if (ret) {
 498                         printk(KERN_ERR PFX "64b DMA consistent mask configuration failed\n");
 499                         goto bail2;
 500                 }
 501         } else {
 502                 ret = pci_set_dma_mask(pcidev, DMA_BIT_MASK(32));
 503                 if (ret < 0) {
 504                         printk(KERN_ERR PFX "32b DMA mask configuration failed\n");
 505                         goto bail2;
 506                 }
 507                 ret = pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(32));
 508                 if (ret) {
 509                         printk(KERN_ERR PFX "32b DMA consistent mask configuration failed\n");
 510                         goto bail2;
 511                 }
 512         }
 513
 514         pci_set_master(pcidev);
 515
 516         /* Allocate hardware structure */
 517         nesdev = kzalloc(sizeof(struct nes_device), GFP_KERNEL);
 518         if (!nesdev) {
 519                 printk(KERN_ERR PFX "%s: Unable to alloc hardware struct\n", pci_name(pcidev));
 520                 ret = -ENOMEM;
 521                 goto bail2;
 522         }
 523
 524         nes_debug(NES_DBG_INIT, "Allocated nes device at %p\n", nesdev);
 525         nesdev->pcidev = pcidev;
 526         pci_set_drvdata(pcidev, nesdev);
 527
 528         pci_read_config_byte(pcidev, 0x0008, &hw_rev);
 529         nes_debug(NES_DBG_INIT, "hw_rev=%u\n", hw_rev);
 530
 531         spin_lock_init(&nesdev->indexed_regs_lock);
 532
 533         /* Remap the PCI registers in adapter BAR0 to kernel VA space */
 534         mmio_regs = ioremap_nocache(pci_resource_start(pcidev, BAR_0),
 535                                     pci_resource_len(pcidev, BAR_0));
 536         if (mmio_regs == NULL) {
 537                 printk(KERN_ERR PFX "Unable to remap BAR0\n");
 538                 ret = -EIO;
 539                 goto bail3;
 540         }
 541         nesdev->regs = mmio_regs;
 542         nesdev->index_reg = 0x50 + (PCI_FUNC(pcidev->devfn)*8) + mmio_regs;
 543
 544         /* Ensure interrupts are disabled */
 545         nes_write32(nesdev->regs+NES_INT_MASK, 0x7fffffff);
 546
 547         if (nes_drv_opt & NES_DRV_OPT_ENABLE_MSI) {
 548                 if (!pci_enable_msi(nesdev->pcidev)) {
 549                         nesdev->msi_enabled = 1;
 550                         nes_debug(NES_DBG_INIT, "MSI is enabled for device %s\n",
 551                                         pci_name(pcidev));
 552                 } else {
 553                         nes_debug(NES_DBG_INIT, "MSI is disabled by linux for device %s\n",
 554                                         pci_name(pcidev));
 555                 }
 556         } else {
 557                 nes_debug(NES_DBG_INIT, "MSI not requested due to driver options for device %s\n",
 558                                 pci_name(pcidev));
 559         }
 560
 561         nesdev->csr_start = pci_resource_start(nesdev->pcidev, BAR_0);
 562         nesdev->doorbell_region = pci_resource_start(nesdev->pcidev, BAR_1);
 563
 564         /* Init the adapter */
 565         nesdev->nesadapter = nes_init_adapter(nesdev, hw_rev);
 566         if (!nesdev->nesadapter) {
 567                 printk(KERN_ERR PFX "Unable to initialize adapter.\n");
 568                 ret = -ENOMEM;
 569                 goto bail5;
 570         }
 571         nesdev->nesadapter->et_rx_coalesce_usecs_irq = interrupt_mod_interval;
 572         nesdev->nesadapter->wqm_quanta = wqm_quanta;
 573
 574         /* nesdev->base_doorbell_index =
 575                         nesdev->nesadapter->pd_config_base[PCI_FUNC(nesdev->pcidev->devfn)]; */
 576         nesdev->base_doorbell_index = 1;
 577         nesdev->doorbell_start = nesdev->nesadapter->doorbell_start;
 578         if (nesdev->nesadapter->phy_type[0] == NES_PHY_TYPE_PUMA_1G) {
 579                 switch (PCI_FUNC(nesdev->pcidev->devfn) %
 580                         nesdev->nesadapter->port_count) {
 581                 case 1:
 582                         nesdev->mac_index = 2;
 583                         break;
 584                 case 2:
 585                         nesdev->mac_index = 1;
 586                         break;
 587                 case 3:
 588                         nesdev->mac_index = 3;
 589                         break;
 590                 case 0:
 591                 default:
 592                         nesdev->mac_index = 0;
 593                 }
 594         } else {
 595                 nesdev->mac_index = PCI_FUNC(nesdev->pcidev->devfn) %
 596                                                 nesdev->nesadapter->port_count;
 597         }
 598
 599         if ((limit_maxrdreqsz ||
 600              ((nesdev->nesadapter->phy_type[0] == NES_PHY_TYPE_GLADIUS) &&
 601               (hw_rev == NE020_REV1))) &&
 602             (pcie_get_readrq(pcidev) > 256)) {
 603                 if (pcie_set_readrq(pcidev, 256))
 604                         printk(KERN_ERR PFX "Unable to set max read request"
 605                                 " to 256 bytes\n");
 606                 else
 607                         nes_debug(NES_DBG_INIT, "Max read request size set"
 608                                 " to 256 bytes\n");
 609         }
 610
 611         tasklet_init(&nesdev->dpc_tasklet, nes_dpc, (unsigned long)nesdev);
 612
 613         /* bring up the Control QP */
 614         if (nes_init_cqp(nesdev)) {
 615                 ret = -ENODEV;
 616                 goto bail6;
 617         }
 618
 619         /* Arm the CCQ */
 620         nes_write32(nesdev->regs+NES_CQE_ALLOC, NES_CQE_ALLOC_NOTIFY_NEXT |
 621                         PCI_FUNC(nesdev->pcidev->devfn));
 622         nes_read32(nesdev->regs+NES_CQE_ALLOC);
 623
 624         /* Enable the interrupts */
 625         nesdev->int_req = (0x101 << PCI_FUNC(nesdev->pcidev->devfn)) |
 626                         (1 << (PCI_FUNC(nesdev->pcidev->devfn)+16));
 627         if (PCI_FUNC(nesdev->pcidev->devfn) < 4) {
 628                 nesdev->int_req |= (1 << (PCI_FUNC(nesdev->mac_index)+24));
 629         }
 630
 631         /* TODO: This really should be the first driver to load, not function 0 */
 632         if (PCI_FUNC(nesdev->pcidev->devfn) == 0) {
 633                 /* pick up PCI and critical errors if the first driver to load */
 634                 nesdev->intf_int_req = NES_INTF_INT_PCIERR | NES_INTF_INT_CRITERR;
 635                 nesdev->int_req |= NES_INT_INTF;
 636         } else {
 637                 nesdev->intf_int_req = 0;
 638         }
 639         nesdev->intf_int_req |= (1 << (PCI_FUNC(nesdev->pcidev->devfn)+16));
 640         nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS0, 0);
 641         nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS1, 0);
 642         nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS2, 0x00001265);
 643         nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS4, 0x18021804);
 644
 645         nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS3, 0x17801790);
 646
 647         /* deal with both periodic and one_shot */
 648         nesdev->timer_int_req = 0x101 << PCI_FUNC(nesdev->pcidev->devfn);
 649         nesdev->nesadapter->timer_int_req |= nesdev->timer_int_req;
 650         nes_debug(NES_DBG_INIT, "setting int_req for function %u, nesdev = 0x%04X, adapter = 0x%04X\n",
 651                         PCI_FUNC(nesdev->pcidev->devfn),
 652                         nesdev->timer_int_req, nesdev->nesadapter->timer_int_req);
 653
 654         nes_write32(nesdev->regs+NES_INTF_INT_MASK, ~(nesdev->intf_int_req));
 655
 656         list_add_tail(&nesdev->list, &nes_dev_list);
 657
 658         /* Request an interrupt line for the driver */
 659         ret = request_irq(pcidev->irq, nes_interrupt, IRQF_SHARED, DRV_NAME, nesdev);
 660         if (ret) {
 661                 printk(KERN_ERR PFX "%s: requested IRQ %u is busy\n",
 662                                 pci_name(pcidev), pcidev->irq);
 663                 goto bail65;
 664         }
 665
 666         nes_write32(nesdev->regs+NES_INT_MASK, ~nesdev->int_req);
 667
 668         if (nes_notifiers_registered == 0) {
 669                 register_inetaddr_notifier(&nes_inetaddr_notifier);
 670                 register_netevent_notifier(&nes_net_notifier);
 671         }
 672         nes_notifiers_registered++;
 673
 674         INIT_DELAYED_WORK(&nesdev->work, nes_recheck_link_status);
 675
 676         /* Initialize network devices */
 677         netdev = nes_netdev_init(nesdev, mmio_regs);
 678         if (netdev == NULL) {
 679                 ret = -ENOMEM;
 680                 goto bail7;
 681         }
 682
 683         /* Register network device */
 684         ret = register_netdev(netdev);
 685         if (ret) {
 686                 printk(KERN_ERR PFX "Unable to register netdev, ret = %d\n", ret);
 687                 nes_netdev_destroy(netdev);
 688                 goto bail7;
 689         }
 690
 691         nes_print_macaddr(netdev);
 692
 693         nesdev->netdev_count++;
 694         nesdev->nesadapter->netdev_count++;
 695
 696         printk(KERN_INFO PFX "%s: NetEffect RNIC driver successfully loaded.\n",
 697                         pci_name(pcidev));
 698         return 0;
 699
 700         bail7:
 701         printk(KERN_ERR PFX "bail7\n");
 702         while (nesdev->netdev_count > 0) {
 703                 nesdev->netdev_count--;
 704                 nesdev->nesadapter->netdev_count--;
 705
 706                 unregister_netdev(nesdev->netdev[nesdev->netdev_count]);
 707                 nes_netdev_destroy(nesdev->netdev[nesdev->netdev_count]);
 708         }
 709
 710         nes_debug(NES_DBG_INIT, "netdev_count=%d, nesadapter->netdev_count=%d\n",
 711                         nesdev->netdev_count, nesdev->nesadapter->netdev_count);
 712
 713         nes_notifiers_registered--;
 714         if (nes_notifiers_registered == 0) {
 715                 unregister_netevent_notifier(&nes_net_notifier);
 716                 unregister_inetaddr_notifier(&nes_inetaddr_notifier);
 717         }
 718
 719         list_del(&nesdev->list);
 720         nes_destroy_cqp(nesdev);
 721
 722         bail65:
 723         printk(KERN_ERR PFX "bail65\n");
 724         free_irq(pcidev->irq, nesdev);
 725         if (nesdev->msi_enabled) {
 726                 pci_disable_msi(pcidev);
 727         }
 728         bail6:
 729         printk(KERN_ERR PFX "bail6\n");
 730         tasklet_kill(&nesdev->dpc_tasklet);
 731         /* Deallocate the Adapter Structure */
 732         nes_destroy_adapter(nesdev->nesadapter);
 733
 734         bail5:
 735         printk(KERN_ERR PFX "bail5\n");
 736         iounmap(nesdev->regs);
 737
 738         bail3:
 739         printk(KERN_ERR PFX "bail3\n");
 740         kfree(nesdev);
 741
 742         bail2:
 743         pci_release_regions(pcidev);
 744
 745         bail1:
 746         pci_disable_device(pcidev);
 747
 748         bail0:
 749         return ret;
 750 }
 751
 752
 753 /**
 754  * nes_remove - unload from kernel
 755  */
 756 static void nes_remove(struct pci_dev *pcidev)
 757 {
 758         struct nes_device *nesdev = pci_get_drvdata(pcidev);
 759         struct net_device *netdev;
 760         int netdev_index = 0;
 761         unsigned long flags;
 762
 763                 if (nesdev->netdev_count) {
 764                         netdev = nesdev->netdev[netdev_index];
 765                         if (netdev) {
 766                                 netif_stop_queue(netdev);
 767                                 unregister_netdev(netdev);
 768                                 nes_netdev_destroy(netdev);
 769
 770                                 nesdev->netdev[netdev_index] = NULL;
 771                                 nesdev->netdev_count--;
 772                                 nesdev->nesadapter->netdev_count--;
 773                         }
 774                 }
 775
 776         nes_notifiers_registered--;
 777         if (nes_notifiers_registered == 0) {
 778                 unregister_netevent_notifier(&nes_net_notifier);
 779                 unregister_inetaddr_notifier(&nes_inetaddr_notifier);
 780         }
 781
 782         list_del(&nesdev->list);
 783         nes_destroy_cqp(nesdev);
 784
 785         free_irq(pcidev->irq, nesdev);
 786         tasklet_kill(&nesdev->dpc_tasklet);
 787
 788         spin_lock_irqsave(&nesdev->nesadapter->phy_lock, flags);
 789         if (nesdev->link_recheck) {
 790                 spin_unlock_irqrestore(&nesdev->nesadapter->phy_lock, flags);
 791                 cancel_delayed_work_sync(&nesdev->work);
 792         } else {
 793                 spin_unlock_irqrestore(&nesdev->nesadapter->phy_lock, flags);
 794         }
 795
 796         /* Deallocate the Adapter Structure */
 797         nes_destroy_adapter(nesdev->nesadapter);
 798
 799         if (nesdev->msi_enabled) {
 800                 pci_disable_msi(pcidev);
 801         }
 802
 803         iounmap(nesdev->regs);
 804         kfree(nesdev);
 805
 806         /* nes_debug(NES_DBG_SHUTDOWN, "calling pci_release_regions.\n"); */
 807         pci_release_regions(pcidev);
 808         pci_disable_device(pcidev);
 809         pci_set_drvdata(pcidev, NULL);
 810 }
 811
 812
 813 static struct pci_driver nes_pci_driver = {
 814         .name = DRV_NAME,
 815         .id_table = nes_pci_table,
 816         .probe = nes_probe,
 817         .remove = nes_remove,
 818 };
 819
 820 static ssize_t nes_show_adapter(struct device_driver *ddp, char *buf)
 821 {
 822         unsigned int  devfn = 0xffffffff;
 823         unsigned char bus_number = 0xff;
 824         unsigned int  i = 0;
 825         struct nes_device *nesdev;
 826
 827         list_for_each_entry(nesdev, &nes_dev_list, list) {
 828                 if (i == ee_flsh_adapter) {
 829                         devfn = nesdev->pcidev->devfn;
 830                         bus_number = nesdev->pcidev->bus->number;
 831                         break;
 832                 }
 833                 i++;
 834         }
 835
 836         return snprintf(buf, PAGE_SIZE, "%x:%x\n", bus_number, devfn);
 837 }
 838
 839 static ssize_t nes_store_adapter(struct device_driver *ddp,
 840         const char *buf, size_t count)
 841 {
 842         char *p = (char *)buf;
 843
 844         ee_flsh_adapter = simple_strtoul(p, &p, 10);
 845         return strnlen(buf, count);
 846 }
 847
 848 static ssize_t nes_show_ee_cmd(struct device_driver *ddp, char *buf)
 849 {
 850         u32 eeprom_cmd = 0xdead;
 851         u32 i = 0;
 852         struct nes_device *nesdev;
 853
 854         list_for_each_entry(nesdev, &nes_dev_list, list) {
 855                 if (i == ee_flsh_adapter) {
 856                         eeprom_cmd = nes_read32(nesdev->regs + NES_EEPROM_COMMAND);
 857                         break;
 858                 }
 859                 i++;
 860         }
 861         return snprintf(buf, PAGE_SIZE, "0x%x\n", eeprom_cmd);
 862 }
 863
 864 static ssize_t nes_store_ee_cmd(struct device_driver *ddp,
 865         const char *buf, size_t count)
 866 {
 867         char *p = (char *)buf;
 868         u32 val;
 869         u32 i = 0;
 870         struct nes_device *nesdev;
 871
 872         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
 873                 val = simple_strtoul(p, &p, 16);
 874                 list_for_each_entry(nesdev, &nes_dev_list, list) {
 875                         if (i == ee_flsh_adapter) {
 876                                 nes_write32(nesdev->regs + NES_EEPROM_COMMAND, val);
 877                                 break;
 878                         }
 879                         i++;
 880                 }
 881         }
 882         return strnlen(buf, count);
 883 }
 884
 885 static ssize_t nes_show_ee_data(struct device_driver *ddp, char *buf)
 886 {
 887         u32 eeprom_data = 0xdead;
 888         u32 i = 0;
 889         struct nes_device *nesdev;
 890
 891         list_for_each_entry(nesdev, &nes_dev_list, list) {
 892                 if (i == ee_flsh_adapter) {
 893                         eeprom_data = nes_read32(nesdev->regs + NES_EEPROM_DATA);
 894                         break;
 895                 }
 896                 i++;
 897         }
 898
 899         return  snprintf(buf, PAGE_SIZE, "0x%x\n", eeprom_data);
 900 }
 901
 902 static ssize_t nes_store_ee_data(struct device_driver *ddp,
 903         const char *buf, size_t count)
 904 {
 905         char *p = (char *)buf;
 906         u32 val;
 907         u32 i = 0;
 908         struct nes_device *nesdev;
 909
 910         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
 911                 val = simple_strtoul(p, &p, 16);
 912                 list_for_each_entry(nesdev, &nes_dev_list, list) {
 913                         if (i == ee_flsh_adapter) {
 914                                 nes_write32(nesdev->regs + NES_EEPROM_DATA, val);
 915                                 break;
 916                         }
 917                         i++;
 918                 }
 919         }
 920         return strnlen(buf, count);
 921 }
 922
 923 static ssize_t nes_show_flash_cmd(struct device_driver *ddp, char *buf)
 924 {
 925         u32 flash_cmd = 0xdead;
 926         u32 i = 0;
 927         struct nes_device *nesdev;
 928
 929         list_for_each_entry(nesdev, &nes_dev_list, list) {
 930                 if (i == ee_flsh_adapter) {
 931                         flash_cmd = nes_read32(nesdev->regs + NES_FLASH_COMMAND);
 932                         break;
 933                 }
 934                 i++;
 935         }
 936
 937         return  snprintf(buf, PAGE_SIZE, "0x%x\n", flash_cmd);
 938 }
 939
 940 static ssize_t nes_store_flash_cmd(struct device_driver *ddp,
 941         const char *buf, size_t count)
 942 {
 943         char *p = (char *)buf;
 944         u32 val;
 945         u32 i = 0;
 946         struct nes_device *nesdev;
 947
 948         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
 949                 val = simple_strtoul(p, &p, 16);
 950                 list_for_each_entry(nesdev, &nes_dev_list, list) {
 951                         if (i == ee_flsh_adapter) {
 952                                 nes_write32(nesdev->regs + NES_FLASH_COMMAND, val);
 953                                 break;
 954                         }
 955                         i++;
 956                 }
 957         }
 958         return strnlen(buf, count);
 959 }
 960
 961 static ssize_t nes_show_flash_data(struct device_driver *ddp, char *buf)
 962 {
 963         u32 flash_data = 0xdead;
 964         u32 i = 0;
 965         struct nes_device *nesdev;
 966
 967         list_for_each_entry(nesdev, &nes_dev_list, list) {
 968                 if (i == ee_flsh_adapter) {
 969                         flash_data = nes_read32(nesdev->regs + NES_FLASH_DATA);
 970                         break;
 971                 }
 972                 i++;
 973         }
 974
 975         return  snprintf(buf, PAGE_SIZE, "0x%x\n", flash_data);
 976 }
 977
 978 static ssize_t nes_store_flash_data(struct device_driver *ddp,
 979         const char *buf, size_t count)
 980 {
 981         char *p = (char *)buf;
 982         u32 val;
 983         u32 i = 0;
 984         struct nes_device *nesdev;
 985
 986         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
 987                 val = simple_strtoul(p, &p, 16);
 988                 list_for_each_entry(nesdev, &nes_dev_list, list) {
 989                         if (i == ee_flsh_adapter) {
 990                                 nes_write32(nesdev->regs + NES_FLASH_DATA, val);
 991                                 break;
 992                         }
 993                         i++;
 994                 }
 995         }
 996         return strnlen(buf, count);
 997 }
 998
 999 static ssize_t nes_show_nonidx_addr(struct device_driver *ddp, char *buf)
1000 {
1001         return  snprintf(buf, PAGE_SIZE, "0x%x\n", sysfs_nonidx_addr);
1002 }
1003
1004 static ssize_t nes_store_nonidx_addr(struct device_driver *ddp,
1005         const char *buf, size_t count)
1006 {
1007         char *p = (char *)buf;
1008
1009         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X')
1010                 sysfs_nonidx_addr = simple_strtoul(p, &p, 16);
1011
1012         return strnlen(buf, count);
1013 }
1014
1015 static ssize_t nes_show_nonidx_data(struct device_driver *ddp, char *buf)
1016 {
1017         u32 nonidx_data = 0xdead;
1018         u32 i = 0;
1019         struct nes_device *nesdev;
1020
1021         list_for_each_entry(nesdev, &nes_dev_list, list) {
1022                 if (i == ee_flsh_adapter) {
1023                         nonidx_data = nes_read32(nesdev->regs + sysfs_nonidx_addr);
1024                         break;
1025                 }
1026                 i++;
1027         }
1028
1029         return  snprintf(buf, PAGE_SIZE, "0x%x\n", nonidx_data);
1030 }
1031
1032 static ssize_t nes_store_nonidx_data(struct device_driver *ddp,
1033         const char *buf, size_t count)
1034 {
1035         char *p = (char *)buf;
1036         u32 val;
1037         u32 i = 0;
1038         struct nes_device *nesdev;
1039
1040         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
1041                 val = simple_strtoul(p, &p, 16);
1042                 list_for_each_entry(nesdev, &nes_dev_list, list) {
1043                         if (i == ee_flsh_adapter) {
1044                                 nes_write32(nesdev->regs + sysfs_nonidx_addr, val);
1045                                 break;
1046                         }
1047                         i++;
1048                 }
1049         }
1050         return strnlen(buf, count);
1051 }
1052
1053 static ssize_t nes_show_idx_addr(struct device_driver *ddp, char *buf)
1054 {
1055         return  snprintf(buf, PAGE_SIZE, "0x%x\n", sysfs_idx_addr);
1056 }
1057
1058 static ssize_t nes_store_idx_addr(struct device_driver *ddp,
1059         const char *buf, size_t count)
1060 {
1061         char *p = (char *)buf;
1062
1063         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X')
1064                 sysfs_idx_addr = simple_strtoul(p, &p, 16);
1065
1066         return strnlen(buf, count);
1067 }
1068
1069 static ssize_t nes_show_idx_data(struct device_driver *ddp, char *buf)
1070 {
1071         u32 idx_data = 0xdead;
1072         u32 i = 0;
1073         struct nes_device *nesdev;
1074
1075         list_for_each_entry(nesdev, &nes_dev_list, list) {
1076                 if (i == ee_flsh_adapter) {
1077                         idx_data = nes_read_indexed(nesdev, sysfs_idx_addr);
1078                         break;
1079                 }
1080                 i++;
1081         }
1082
1083         return  snprintf(buf, PAGE_SIZE, "0x%x\n", idx_data);
1084 }
1085
1086 static ssize_t nes_store_idx_data(struct device_driver *ddp,
1087         const char *buf, size_t count)
1088 {
1089         char *p = (char *)buf;
1090         u32 val;
1091         u32 i = 0;
1092         struct nes_device *nesdev;
1093
1094         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
1095                 val = simple_strtoul(p, &p, 16);
1096                 list_for_each_entry(nesdev, &nes_dev_list, list) {
1097                         if (i == ee_flsh_adapter) {
1098                                 nes_write_indexed(nesdev, sysfs_idx_addr, val);
1099                                 break;
1100                         }
1101                         i++;
1102                 }
1103         }
1104         return strnlen(buf, count);
1105 }
1106
1107
1108 /**
1109  * nes_show_wqm_quanta
1110  */
1111 static ssize_t nes_show_wqm_quanta(struct device_driver *ddp, char *buf)
1112 {
1113         u32 wqm_quanta_value = 0xdead;
1114         u32 i = 0;
1115         struct nes_device *nesdev;
1116
1117         list_for_each_entry(nesdev, &nes_dev_list, list) {
1118                 if (i == ee_flsh_adapter) {
1119                         wqm_quanta_value = nesdev->nesadapter->wqm_quanta;
1120                         break;
1121                 }
1122                 i++;
1123         }
1124
1125         return  snprintf(buf, PAGE_SIZE, "0x%X\n", wqm_quanta_value);
1126 }
1127
1128
1129 /**
1130  * nes_store_wqm_quanta
1131  */
1132 static ssize_t nes_store_wqm_quanta(struct device_driver *ddp,
1133                                         const char *buf, size_t count)
1134 {
1135         unsigned long wqm_quanta_value;
1136         u32 wqm_config1;
1137         u32 i = 0;
1138         struct nes_device *nesdev;
1139
1140         if (kstrtoul(buf, 0, &wqm_quanta_value) < 0)
1141                 return -EINVAL;
1142
1143         list_for_each_entry(nesdev, &nes_dev_list, list) {
1144                 if (i == ee_flsh_adapter) {
1145                         nesdev->nesadapter->wqm_quanta = wqm_quanta_value;
1146                         wqm_config1 = nes_read_indexed(nesdev,
1147                                                 NES_IDX_WQM_CONFIG1);
1148                         nes_write_indexed(nesdev, NES_IDX_WQM_CONFIG1,
1149                                         ((wqm_quanta_value << 1) |
1150                                         (wqm_config1 & 0x00000001)));
1151                         break;
1152                 }
1153                 i++;
1154         }
1155         return strnlen(buf, count);
1156 }
1157
1158 static DRIVER_ATTR(adapter, S_IRUSR | S_IWUSR,
1159                    nes_show_adapter, nes_store_adapter);
1160 static DRIVER_ATTR(eeprom_cmd, S_IRUSR | S_IWUSR,
1161                    nes_show_ee_cmd, nes_store_ee_cmd);
1162 static DRIVER_ATTR(eeprom_data, S_IRUSR | S_IWUSR,
1163                    nes_show_ee_data, nes_store_ee_data);
1164 static DRIVER_ATTR(flash_cmd, S_IRUSR | S_IWUSR,
1165                    nes_show_flash_cmd, nes_store_flash_cmd);
1166 static DRIVER_ATTR(flash_data, S_IRUSR | S_IWUSR,
1167                    nes_show_flash_data, nes_store_flash_data);
1168 static DRIVER_ATTR(nonidx_addr, S_IRUSR | S_IWUSR,
1169                    nes_show_nonidx_addr, nes_store_nonidx_addr);
1170 static DRIVER_ATTR(nonidx_data, S_IRUSR | S_IWUSR,
1171                    nes_show_nonidx_data, nes_store_nonidx_data);
1172 static DRIVER_ATTR(idx_addr, S_IRUSR | S_IWUSR,
1173                    nes_show_idx_addr, nes_store_idx_addr);
1174 static DRIVER_ATTR(idx_data, S_IRUSR | S_IWUSR,
1175                    nes_show_idx_data, nes_store_idx_data);
1176 static DRIVER_ATTR(wqm_quanta, S_IRUSR | S_IWUSR,
1177                    nes_show_wqm_quanta, nes_store_wqm_quanta);
1178
1179 static int nes_create_driver_sysfs(struct pci_driver *drv)
1180 {
1181         int error;
1182         error  = driver_create_file(&drv->driver, &driver_attr_adapter);
1183         error |= driver_create_file(&drv->driver, &driver_attr_eeprom_cmd);
1184         error |= driver_create_file(&drv->driver, &driver_attr_eeprom_data);
1185         error |= driver_create_file(&drv->driver, &driver_attr_flash_cmd);
1186         error |= driver_create_file(&drv->driver, &driver_attr_flash_data);
1187         error |= driver_create_file(&drv->driver, &driver_attr_nonidx_addr);
1188         error |= driver_create_file(&drv->driver, &driver_attr_nonidx_data);
1189         error |= driver_create_file(&drv->driver, &driver_attr_idx_addr);
1190         error |= driver_create_file(&drv->driver, &driver_attr_idx_data);
1191         error |= driver_create_file(&drv->driver, &driver_attr_wqm_quanta);
1192         return error;
1193 }
1194
1195 static void nes_remove_driver_sysfs(struct pci_driver *drv)
1196 {
1197         driver_remove_file(&drv->driver, &driver_attr_adapter);
1198         driver_remove_file(&drv->driver, &driver_attr_eeprom_cmd);
1199         driver_remove_file(&drv->driver, &driver_attr_eeprom_data);
1200         driver_remove_file(&drv->driver, &driver_attr_flash_cmd);
1201         driver_remove_file(&drv->driver, &driver_attr_flash_data);
1202         driver_remove_file(&drv->driver, &driver_attr_nonidx_addr);
1203         driver_remove_file(&drv->driver, &driver_attr_nonidx_data);
1204         driver_remove_file(&drv->driver, &driver_attr_idx_addr);
1205         driver_remove_file(&drv->driver, &driver_attr_idx_data);
1206         driver_remove_file(&drv->driver, &driver_attr_wqm_quanta);
1207 }
1208
1209 /**
1210  * nes_init_module - module initialization entry point
1211  */
1212 static int __init nes_init_module(void)
1213 {
1214         int retval;
1215         int retval1;
1216
1217         retval = nes_cm_start();
1218         if (retval) {
1219                 printk(KERN_ERR PFX "Unable to start NetEffect iWARP CM.\n");
1220                 return retval;
1221         }
1222         retval = pci_register_driver(&nes_pci_driver);
1223         if (retval >= 0) {
1224                 retval1 = nes_create_driver_sysfs(&nes_pci_driver);
1225                 if (retval1 < 0)
1226                         printk(KERN_ERR PFX "Unable to create NetEffect sys files.\n");
1227         }
1228         return retval;
1229 }
1230
1231
1232 /**
1233  * nes_exit_module - module unload entry point
1234  */
1235 static void __exit nes_exit_module(void)
1236 {
1237         nes_cm_stop();
1238         nes_remove_driver_sysfs(&nes_pci_driver);
1239
1240         pci_unregister_driver(&nes_pci_driver);
1241 }
1242
1243
1244 module_init(nes_init_module);
1245 module_exit(nes_exit_module);