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/drivers/infiniband/hw/nes/nes.c

https://bitbucket.org/bigxie/android-omap-tuna
C | 1246 lines | 953 code | 187 blank | 106 comment | 200 complexity | 622b57300fa302bcdac7eb88460d314c MD5 | raw file
   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
  63MODULE_AUTHOR("NetEffect");
  64MODULE_DESCRIPTION("NetEffect RNIC Low-level iWARP Driver");
  65MODULE_LICENSE("Dual BSD/GPL");
  66MODULE_VERSION(DRV_VERSION);
  67
  68int max_mtu = 9000;
  69int interrupt_mod_interval = 0;
  70
  71
  72/* Interoperability */
  73int mpa_version = 1;
  74module_param(mpa_version, int, 0644);
  75MODULE_PARM_DESC(mpa_version, "MPA version to be used int MPA Req/Resp (0 or 1)");
  76
  77/* Interoperability */
  78int disable_mpa_crc = 0;
  79module_param(disable_mpa_crc, int, 0644);
  80MODULE_PARM_DESC(disable_mpa_crc, "Disable checking of MPA CRC");
  81
  82unsigned int send_first = 0;
  83module_param(send_first, int, 0644);
  84MODULE_PARM_DESC(send_first, "Send RDMA Message First on Active Connection");
  85
  86
  87unsigned int nes_drv_opt = 0;
  88module_param(nes_drv_opt, int, 0644);
  89MODULE_PARM_DESC(nes_drv_opt, "Driver option parameters");
  90
  91unsigned int nes_debug_level = 0;
  92module_param_named(debug_level, nes_debug_level, uint, 0644);
  93MODULE_PARM_DESC(debug_level, "Enable debug output level");
  94
  95unsigned int wqm_quanta = 0x10000;
  96module_param(wqm_quanta, int, 0644);
  97MODULE_PARM_DESC(wqm_quanta, "WQM quanta");
  98
  99static unsigned int limit_maxrdreqsz;
 100module_param(limit_maxrdreqsz, bool, 0644);
 101MODULE_PARM_DESC(limit_maxrdreqsz, "Limit max read request size to 256 Bytes");
 102
 103LIST_HEAD(nes_adapter_list);
 104static LIST_HEAD(nes_dev_list);
 105
 106atomic_t qps_destroyed;
 107
 108static unsigned int ee_flsh_adapter;
 109static unsigned int sysfs_nonidx_addr;
 110static unsigned int sysfs_idx_addr;
 111
 112static 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
 118MODULE_DEVICE_TABLE(pci, nes_pci_table);
 119
 120static int nes_inetaddr_event(struct notifier_block *, unsigned long, void *);
 121static int nes_net_event(struct notifier_block *, unsigned long, void *);
 122static int nes_notifiers_registered;
 123
 124
 125static struct notifier_block nes_inetaddr_notifier = {
 126	.notifier_call = nes_inetaddr_event
 127};
 128
 129static struct notifier_block nes_net_notifier = {
 130	.notifier_call = nes_net_event
 131};
 132
 133
 134
 135
 136/**
 137 * nes_inetaddr_event
 138 */
 139static int nes_inetaddr_event(struct notifier_block *notifier,
 140		unsigned long event, void *ptr)
 141{
 142	struct in_ifaddr *ifa = ptr;
 143	struct net_device *event_netdev = ifa->ifa_dev->dev;
 144	struct nes_device *nesdev;
 145	struct net_device *netdev;
 146	struct nes_vnic *nesvnic;
 147	unsigned int is_bonded;
 148
 149	nes_debug(NES_DBG_NETDEV, "nes_inetaddr_event: ip address %pI4, netmask %pI4.\n",
 150		  &ifa->ifa_address, &ifa->ifa_mask);
 151	list_for_each_entry(nesdev, &nes_dev_list, list) {
 152		nes_debug(NES_DBG_NETDEV, "Nesdev list entry = 0x%p. (%s)\n",
 153				nesdev, nesdev->netdev[0]->name);
 154		netdev = nesdev->netdev[0];
 155		nesvnic = netdev_priv(netdev);
 156		is_bonded = netif_is_bond_slave(netdev) &&
 157			    (netdev->master == event_netdev);
 158		if ((netdev == event_netdev) || is_bonded) {
 159			if (nesvnic->rdma_enabled == 0) {
 160				nes_debug(NES_DBG_NETDEV, "Returning without processing event for %s since"
 161						" RDMA is not enabled.\n",
 162						netdev->name);
 163				return NOTIFY_OK;
 164			}
 165			/* we have ifa->ifa_address/mask here if we need it */
 166			switch (event) {
 167				case NETDEV_DOWN:
 168					nes_debug(NES_DBG_NETDEV, "event:DOWN\n");
 169					nes_write_indexed(nesdev,
 170							NES_IDX_DST_IP_ADDR+(0x10*PCI_FUNC(nesdev->pcidev->devfn)), 0);
 171
 172					nes_manage_arp_cache(netdev, netdev->dev_addr,
 173							ntohl(nesvnic->local_ipaddr), NES_ARP_DELETE);
 174					nesvnic->local_ipaddr = 0;
 175					if (is_bonded)
 176						continue;
 177					else
 178						return NOTIFY_OK;
 179					break;
 180				case NETDEV_UP:
 181					nes_debug(NES_DBG_NETDEV, "event:UP\n");
 182
 183					if (nesvnic->local_ipaddr != 0) {
 184						nes_debug(NES_DBG_NETDEV, "Interface already has local_ipaddr\n");
 185						return NOTIFY_OK;
 186					}
 187					/* fall through */
 188				case NETDEV_CHANGEADDR:
 189					/* Add the address to the IP table */
 190					if (netdev->master)
 191						nesvnic->local_ipaddr =
 192							((struct in_device *)netdev->master->ip_ptr)->ifa_list->ifa_address;
 193					else
 194						nesvnic->local_ipaddr = ifa->ifa_address;
 195
 196					nes_write_indexed(nesdev,
 197							NES_IDX_DST_IP_ADDR+(0x10*PCI_FUNC(nesdev->pcidev->devfn)),
 198							ntohl(nesvnic->local_ipaddr));
 199					nes_manage_arp_cache(netdev, netdev->dev_addr,
 200							ntohl(nesvnic->local_ipaddr), NES_ARP_ADD);
 201					if (is_bonded)
 202						continue;
 203					else
 204						return NOTIFY_OK;
 205					break;
 206				default:
 207					break;
 208			}
 209		}
 210	}
 211
 212	return NOTIFY_DONE;
 213}
 214
 215
 216/**
 217 * nes_net_event
 218 */
 219static int nes_net_event(struct notifier_block *notifier,
 220		unsigned long event, void *ptr)
 221{
 222	struct neighbour *neigh = ptr;
 223	struct nes_device *nesdev;
 224	struct net_device *netdev;
 225	struct nes_vnic *nesvnic;
 226
 227	switch (event) {
 228		case NETEVENT_NEIGH_UPDATE:
 229			list_for_each_entry(nesdev, &nes_dev_list, list) {
 230				/* nes_debug(NES_DBG_NETDEV, "Nesdev list entry = 0x%p.\n", nesdev); */
 231				netdev = nesdev->netdev[0];
 232				nesvnic = netdev_priv(netdev);
 233				if (netdev == neigh->dev) {
 234					if (nesvnic->rdma_enabled == 0) {
 235						nes_debug(NES_DBG_NETDEV, "Skipping device %s since no RDMA\n",
 236								netdev->name);
 237					} else {
 238						if (neigh->nud_state & NUD_VALID) {
 239							nes_manage_arp_cache(neigh->dev, neigh->ha,
 240									ntohl(*(__be32 *)neigh->primary_key), NES_ARP_ADD);
 241						} else {
 242							nes_manage_arp_cache(neigh->dev, neigh->ha,
 243									ntohl(*(__be32 *)neigh->primary_key), NES_ARP_DELETE);
 244						}
 245					}
 246					return NOTIFY_OK;
 247				}
 248			}
 249			break;
 250		default:
 251			nes_debug(NES_DBG_NETDEV, "NETEVENT_ %lu undefined\n", event);
 252			break;
 253	}
 254
 255	return NOTIFY_DONE;
 256}
 257
 258
 259/**
 260 * nes_add_ref
 261 */
 262void nes_add_ref(struct ib_qp *ibqp)
 263{
 264	struct nes_qp *nesqp;
 265
 266	nesqp = to_nesqp(ibqp);
 267	nes_debug(NES_DBG_QP, "Bumping refcount for QP%u.  Pre-inc value = %u\n",
 268			ibqp->qp_num, atomic_read(&nesqp->refcount));
 269	atomic_inc(&nesqp->refcount);
 270}
 271
 272static void nes_cqp_rem_ref_callback(struct nes_device *nesdev, struct nes_cqp_request *cqp_request)
 273{
 274	unsigned long flags;
 275	struct nes_qp *nesqp = cqp_request->cqp_callback_pointer;
 276	struct nes_adapter *nesadapter = nesdev->nesadapter;
 277
 278	atomic_inc(&qps_destroyed);
 279
 280	/* Free the control structures */
 281
 282	if (nesqp->pbl_vbase) {
 283		pci_free_consistent(nesdev->pcidev, nesqp->qp_mem_size,
 284				nesqp->hwqp.q2_vbase, nesqp->hwqp.q2_pbase);
 285		spin_lock_irqsave(&nesadapter->pbl_lock, flags);
 286		nesadapter->free_256pbl++;
 287		spin_unlock_irqrestore(&nesadapter->pbl_lock, flags);
 288		pci_free_consistent(nesdev->pcidev, 256, nesqp->pbl_vbase, nesqp->pbl_pbase);
 289		nesqp->pbl_vbase = NULL;
 290
 291	} else {
 292		pci_free_consistent(nesdev->pcidev, nesqp->qp_mem_size,
 293				nesqp->hwqp.sq_vbase, nesqp->hwqp.sq_pbase);
 294	}
 295	nes_free_resource(nesadapter, nesadapter->allocated_qps, nesqp->hwqp.qp_id);
 296
 297	nesadapter->qp_table[nesqp->hwqp.qp_id-NES_FIRST_QPN] = NULL;
 298	kfree(nesqp->allocated_buffer);
 299
 300}
 301
 302/**
 303 * nes_rem_ref
 304 */
 305void nes_rem_ref(struct ib_qp *ibqp)
 306{
 307	u64 u64temp;
 308	struct nes_qp *nesqp;
 309	struct nes_vnic *nesvnic = to_nesvnic(ibqp->device);
 310	struct nes_device *nesdev = nesvnic->nesdev;
 311	struct nes_hw_cqp_wqe *cqp_wqe;
 312	struct nes_cqp_request *cqp_request;
 313	u32 opcode;
 314
 315	nesqp = to_nesqp(ibqp);
 316
 317	if (atomic_read(&nesqp->refcount) == 0) {
 318		printk(KERN_INFO PFX "%s: Reference count already 0 for QP%d, last aeq = 0x%04X.\n",
 319				__func__, ibqp->qp_num, nesqp->last_aeq);
 320		BUG();
 321	}
 322
 323	if (atomic_dec_and_test(&nesqp->refcount)) {
 324		/* Destroy the QP */
 325		cqp_request = nes_get_cqp_request(nesdev);
 326		if (cqp_request == NULL) {
 327			nes_debug(NES_DBG_QP, "Failed to get a cqp_request.\n");
 328			return;
 329		}
 330		cqp_request->waiting = 0;
 331		cqp_request->callback = 1;
 332		cqp_request->cqp_callback = nes_cqp_rem_ref_callback;
 333		cqp_request->cqp_callback_pointer = nesqp;
 334		cqp_wqe = &cqp_request->cqp_wqe;
 335
 336		nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
 337		opcode = NES_CQP_DESTROY_QP | NES_CQP_QP_TYPE_IWARP;
 338
 339		if (nesqp->hte_added) {
 340			opcode  |= NES_CQP_QP_DEL_HTE;
 341			nesqp->hte_added = 0;
 342		}
 343		set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, opcode);
 344		set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX, nesqp->hwqp.qp_id);
 345		u64temp = (u64)nesqp->nesqp_context_pbase;
 346		set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_QP_WQE_CONTEXT_LOW_IDX, u64temp);
 347		nes_post_cqp_request(nesdev, cqp_request);
 348	}
 349}
 350
 351
 352/**
 353 * nes_get_qp
 354 */
 355struct ib_qp *nes_get_qp(struct ib_device *device, int qpn)
 356{
 357	struct nes_vnic *nesvnic = to_nesvnic(device);
 358	struct nes_device *nesdev = nesvnic->nesdev;
 359	struct nes_adapter *nesadapter = nesdev->nesadapter;
 360
 361	if ((qpn < NES_FIRST_QPN) || (qpn >= (NES_FIRST_QPN + nesadapter->max_qp)))
 362		return NULL;
 363
 364	return &nesadapter->qp_table[qpn - NES_FIRST_QPN]->ibqp;
 365}
 366
 367
 368/**
 369 * nes_print_macaddr
 370 */
 371static void nes_print_macaddr(struct net_device *netdev)
 372{
 373	nes_debug(NES_DBG_INIT, "%s: %pM, IRQ %u\n",
 374		  netdev->name, netdev->dev_addr, netdev->irq);
 375}
 376
 377/**
 378 * nes_interrupt - handle interrupts
 379 */
 380static irqreturn_t nes_interrupt(int irq, void *dev_id)
 381{
 382	struct nes_device *nesdev = (struct nes_device *)dev_id;
 383	int handled = 0;
 384	u32 int_mask;
 385	u32 int_req;
 386	u32 int_stat;
 387	u32 intf_int_stat;
 388	u32 timer_stat;
 389
 390	if (nesdev->msi_enabled) {
 391		/* No need to read the interrupt pending register if msi is enabled */
 392		handled = 1;
 393	} else {
 394		if (unlikely(nesdev->nesadapter->hw_rev == NE020_REV)) {
 395			/* Master interrupt enable provides synchronization for kicking off bottom half
 396			  when interrupt sharing is going on */
 397			int_mask = nes_read32(nesdev->regs + NES_INT_MASK);
 398			if (int_mask & 0x80000000) {
 399				/* Check interrupt status to see if this might be ours */
 400				int_stat = nes_read32(nesdev->regs + NES_INT_STAT);
 401				int_req = nesdev->int_req;
 402				if (int_stat&int_req) {
 403					/* if interesting CEQ or AEQ is pending, claim the interrupt */
 404					if ((int_stat&int_req) & (~(NES_INT_TIMER|NES_INT_INTF))) {
 405						handled = 1;
 406					} else {
 407						if (((int_stat & int_req) & NES_INT_TIMER) == NES_INT_TIMER) {
 408							/* Timer might be running but might be for another function */
 409							timer_stat = nes_read32(nesdev->regs + NES_TIMER_STAT);
 410							if ((timer_stat & nesdev->timer_int_req) != 0) {
 411								handled = 1;
 412							}
 413						}
 414						if ((((int_stat & int_req) & NES_INT_INTF) == NES_INT_INTF) &&
 415								(handled == 0)) {
 416							intf_int_stat = nes_read32(nesdev->regs+NES_INTF_INT_STAT);
 417							if ((intf_int_stat & nesdev->intf_int_req) != 0) {
 418								handled = 1;
 419							}
 420						}
 421					}
 422					if (handled) {
 423						nes_write32(nesdev->regs+NES_INT_MASK, int_mask & (~0x80000000));
 424						int_mask = nes_read32(nesdev->regs+NES_INT_MASK);
 425						/* Save off the status to save an additional read */
 426						nesdev->int_stat = int_stat;
 427						nesdev->napi_isr_ran = 1;
 428					}
 429				}
 430			}
 431		} else {
 432			handled = nes_read32(nesdev->regs+NES_INT_PENDING);
 433		}
 434	}
 435
 436	if (handled) {
 437
 438		if (nes_napi_isr(nesdev) == 0) {
 439			tasklet_schedule(&nesdev->dpc_tasklet);
 440
 441		}
 442		return IRQ_HANDLED;
 443	} else {
 444		return IRQ_NONE;
 445	}
 446}
 447
 448
 449/**
 450 * nes_probe - Device initialization
 451 */
 452static int __devinit nes_probe(struct pci_dev *pcidev, const struct pci_device_id *ent)
 453{
 454	struct net_device *netdev = NULL;
 455	struct nes_device *nesdev = NULL;
 456	int ret = 0;
 457	void __iomem *mmio_regs = NULL;
 458	u8 hw_rev;
 459
 460	assert(pcidev != NULL);
 461	assert(ent != NULL);
 462
 463	printk(KERN_INFO PFX "NetEffect RNIC driver v%s loading. (%s)\n",
 464			DRV_VERSION, pci_name(pcidev));
 465
 466	ret = pci_enable_device(pcidev);
 467	if (ret) {
 468		printk(KERN_ERR PFX "Unable to enable PCI device. (%s)\n", pci_name(pcidev));
 469		goto bail0;
 470	}
 471
 472	nes_debug(NES_DBG_INIT, "BAR0 (@0x%08lX) size = 0x%lX bytes\n",
 473			(long unsigned int)pci_resource_start(pcidev, BAR_0),
 474			(long unsigned int)pci_resource_len(pcidev, BAR_0));
 475	nes_debug(NES_DBG_INIT, "BAR1 (@0x%08lX) size = 0x%lX bytes\n",
 476			(long unsigned int)pci_resource_start(pcidev, BAR_1),
 477			(long unsigned int)pci_resource_len(pcidev, BAR_1));
 478
 479	/* Make sure PCI base addr are MMIO */
 480	if (!(pci_resource_flags(pcidev, BAR_0) & IORESOURCE_MEM) ||
 481			!(pci_resource_flags(pcidev, BAR_1) & IORESOURCE_MEM)) {
 482		printk(KERN_ERR PFX "PCI regions not an MMIO resource\n");
 483		ret = -ENODEV;
 484		goto bail1;
 485	}
 486
 487	/* Reserve PCI I/O and memory resources */
 488	ret = pci_request_regions(pcidev, DRV_NAME);
 489	if (ret) {
 490		printk(KERN_ERR PFX "Unable to request regions. (%s)\n", pci_name(pcidev));
 491		goto bail1;
 492	}
 493
 494	if ((sizeof(dma_addr_t) > 4)) {
 495		ret = pci_set_dma_mask(pcidev, DMA_BIT_MASK(64));
 496		if (ret < 0) {
 497			printk(KERN_ERR PFX "64b DMA mask configuration failed\n");
 498			goto bail2;
 499		}
 500		ret = pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(64));
 501		if (ret) {
 502			printk(KERN_ERR PFX "64b DMA consistent mask configuration failed\n");
 503			goto bail2;
 504		}
 505	} else {
 506		ret = pci_set_dma_mask(pcidev, DMA_BIT_MASK(32));
 507		if (ret < 0) {
 508			printk(KERN_ERR PFX "32b DMA mask configuration failed\n");
 509			goto bail2;
 510		}
 511		ret = pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(32));
 512		if (ret) {
 513			printk(KERN_ERR PFX "32b DMA consistent mask configuration failed\n");
 514			goto bail2;
 515		}
 516	}
 517
 518	pci_set_master(pcidev);
 519
 520	/* Allocate hardware structure */
 521	nesdev = kzalloc(sizeof(struct nes_device), GFP_KERNEL);
 522	if (!nesdev) {
 523		printk(KERN_ERR PFX "%s: Unable to alloc hardware struct\n", pci_name(pcidev));
 524		ret = -ENOMEM;
 525		goto bail2;
 526	}
 527
 528	nes_debug(NES_DBG_INIT, "Allocated nes device at %p\n", nesdev);
 529	nesdev->pcidev = pcidev;
 530	pci_set_drvdata(pcidev, nesdev);
 531
 532	pci_read_config_byte(pcidev, 0x0008, &hw_rev);
 533	nes_debug(NES_DBG_INIT, "hw_rev=%u\n", hw_rev);
 534
 535	spin_lock_init(&nesdev->indexed_regs_lock);
 536
 537	/* Remap the PCI registers in adapter BAR0 to kernel VA space */
 538	mmio_regs = ioremap_nocache(pci_resource_start(pcidev, BAR_0),
 539				    pci_resource_len(pcidev, BAR_0));
 540	if (mmio_regs == NULL) {
 541		printk(KERN_ERR PFX "Unable to remap BAR0\n");
 542		ret = -EIO;
 543		goto bail3;
 544	}
 545	nesdev->regs = mmio_regs;
 546	nesdev->index_reg = 0x50 + (PCI_FUNC(pcidev->devfn)*8) + mmio_regs;
 547
 548	/* Ensure interrupts are disabled */
 549	nes_write32(nesdev->regs+NES_INT_MASK, 0x7fffffff);
 550
 551	if (nes_drv_opt & NES_DRV_OPT_ENABLE_MSI) {
 552		if (!pci_enable_msi(nesdev->pcidev)) {
 553			nesdev->msi_enabled = 1;
 554			nes_debug(NES_DBG_INIT, "MSI is enabled for device %s\n",
 555					pci_name(pcidev));
 556		} else {
 557			nes_debug(NES_DBG_INIT, "MSI is disabled by linux for device %s\n",
 558					pci_name(pcidev));
 559		}
 560	} else {
 561		nes_debug(NES_DBG_INIT, "MSI not requested due to driver options for device %s\n",
 562				pci_name(pcidev));
 563	}
 564
 565	nesdev->csr_start = pci_resource_start(nesdev->pcidev, BAR_0);
 566	nesdev->doorbell_region = pci_resource_start(nesdev->pcidev, BAR_1);
 567
 568	/* Init the adapter */
 569	nesdev->nesadapter = nes_init_adapter(nesdev, hw_rev);
 570	if (!nesdev->nesadapter) {
 571		printk(KERN_ERR PFX "Unable to initialize adapter.\n");
 572		ret = -ENOMEM;
 573		goto bail5;
 574	}
 575	nesdev->nesadapter->et_rx_coalesce_usecs_irq = interrupt_mod_interval;
 576	nesdev->nesadapter->wqm_quanta = wqm_quanta;
 577
 578	/* nesdev->base_doorbell_index =
 579			nesdev->nesadapter->pd_config_base[PCI_FUNC(nesdev->pcidev->devfn)]; */
 580	nesdev->base_doorbell_index = 1;
 581	nesdev->doorbell_start = nesdev->nesadapter->doorbell_start;
 582	if (nesdev->nesadapter->phy_type[0] == NES_PHY_TYPE_PUMA_1G) {
 583		switch (PCI_FUNC(nesdev->pcidev->devfn) %
 584			nesdev->nesadapter->port_count) {
 585		case 1:
 586			nesdev->mac_index = 2;
 587			break;
 588		case 2:
 589			nesdev->mac_index = 1;
 590			break;
 591		case 3:
 592			nesdev->mac_index = 3;
 593			break;
 594		case 0:
 595		default:
 596			nesdev->mac_index = 0;
 597		}
 598	} else {
 599		nesdev->mac_index = PCI_FUNC(nesdev->pcidev->devfn) %
 600						nesdev->nesadapter->port_count;
 601	}
 602
 603	if ((limit_maxrdreqsz ||
 604	     ((nesdev->nesadapter->phy_type[0] == NES_PHY_TYPE_GLADIUS) &&
 605	      (hw_rev == NE020_REV1))) &&
 606	    (pcie_get_readrq(pcidev) > 256)) {
 607		if (pcie_set_readrq(pcidev, 256))
 608			printk(KERN_ERR PFX "Unable to set max read request"
 609				" to 256 bytes\n");
 610		else
 611			nes_debug(NES_DBG_INIT, "Max read request size set"
 612				" to 256 bytes\n");
 613	}
 614
 615	tasklet_init(&nesdev->dpc_tasklet, nes_dpc, (unsigned long)nesdev);
 616
 617	/* bring up the Control QP */
 618	if (nes_init_cqp(nesdev)) {
 619		ret = -ENODEV;
 620		goto bail6;
 621	}
 622
 623	/* Arm the CCQ */
 624	nes_write32(nesdev->regs+NES_CQE_ALLOC, NES_CQE_ALLOC_NOTIFY_NEXT |
 625			PCI_FUNC(nesdev->pcidev->devfn));
 626	nes_read32(nesdev->regs+NES_CQE_ALLOC);
 627
 628	/* Enable the interrupts */
 629	nesdev->int_req = (0x101 << PCI_FUNC(nesdev->pcidev->devfn)) |
 630			(1 << (PCI_FUNC(nesdev->pcidev->devfn)+16));
 631	if (PCI_FUNC(nesdev->pcidev->devfn) < 4) {
 632		nesdev->int_req |= (1 << (PCI_FUNC(nesdev->mac_index)+24));
 633	}
 634
 635	/* TODO: This really should be the first driver to load, not function 0 */
 636	if (PCI_FUNC(nesdev->pcidev->devfn) == 0) {
 637		/* pick up PCI and critical errors if the first driver to load */
 638		nesdev->intf_int_req = NES_INTF_INT_PCIERR | NES_INTF_INT_CRITERR;
 639		nesdev->int_req |= NES_INT_INTF;
 640	} else {
 641		nesdev->intf_int_req = 0;
 642	}
 643	nesdev->intf_int_req |= (1 << (PCI_FUNC(nesdev->pcidev->devfn)+16));
 644	nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS0, 0);
 645	nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS1, 0);
 646	nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS2, 0x00001265);
 647	nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS4, 0x18021804);
 648
 649	nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS3, 0x17801790);
 650
 651	/* deal with both periodic and one_shot */
 652	nesdev->timer_int_req = 0x101 << PCI_FUNC(nesdev->pcidev->devfn);
 653	nesdev->nesadapter->timer_int_req |= nesdev->timer_int_req;
 654	nes_debug(NES_DBG_INIT, "setting int_req for function %u, nesdev = 0x%04X, adapter = 0x%04X\n",
 655			PCI_FUNC(nesdev->pcidev->devfn),
 656			nesdev->timer_int_req, nesdev->nesadapter->timer_int_req);
 657
 658	nes_write32(nesdev->regs+NES_INTF_INT_MASK, ~(nesdev->intf_int_req));
 659
 660	list_add_tail(&nesdev->list, &nes_dev_list);
 661
 662	/* Request an interrupt line for the driver */
 663	ret = request_irq(pcidev->irq, nes_interrupt, IRQF_SHARED, DRV_NAME, nesdev);
 664	if (ret) {
 665		printk(KERN_ERR PFX "%s: requested IRQ %u is busy\n",
 666				pci_name(pcidev), pcidev->irq);
 667		goto bail65;
 668	}
 669
 670	nes_write32(nesdev->regs+NES_INT_MASK, ~nesdev->int_req);
 671
 672	if (nes_notifiers_registered == 0) {
 673		register_inetaddr_notifier(&nes_inetaddr_notifier);
 674		register_netevent_notifier(&nes_net_notifier);
 675	}
 676	nes_notifiers_registered++;
 677
 678	INIT_DELAYED_WORK(&nesdev->work, nes_recheck_link_status);
 679
 680	/* Initialize network devices */
 681	if ((netdev = nes_netdev_init(nesdev, mmio_regs)) == NULL)
 682		goto bail7;
 683
 684	/* Register network device */
 685	ret = register_netdev(netdev);
 686	if (ret) {
 687		printk(KERN_ERR PFX "Unable to register netdev, ret = %d\n", ret);
 688		nes_netdev_destroy(netdev);
 689		goto bail7;
 690	}
 691
 692	nes_print_macaddr(netdev);
 693
 694	nesdev->netdev_count++;
 695	nesdev->nesadapter->netdev_count++;
 696
 697	printk(KERN_INFO PFX "%s: NetEffect RNIC driver successfully loaded.\n",
 698			pci_name(pcidev));
 699	return 0;
 700
 701	bail7:
 702	printk(KERN_ERR PFX "bail7\n");
 703	while (nesdev->netdev_count > 0) {
 704		nesdev->netdev_count--;
 705		nesdev->nesadapter->netdev_count--;
 706
 707		unregister_netdev(nesdev->netdev[nesdev->netdev_count]);
 708		nes_netdev_destroy(nesdev->netdev[nesdev->netdev_count]);
 709	}
 710
 711	nes_debug(NES_DBG_INIT, "netdev_count=%d, nesadapter->netdev_count=%d\n",
 712			nesdev->netdev_count, nesdev->nesadapter->netdev_count);
 713
 714	nes_notifiers_registered--;
 715	if (nes_notifiers_registered == 0) {
 716		unregister_netevent_notifier(&nes_net_notifier);
 717		unregister_inetaddr_notifier(&nes_inetaddr_notifier);
 718	}
 719
 720	list_del(&nesdev->list);
 721	nes_destroy_cqp(nesdev);
 722
 723	bail65:
 724	printk(KERN_ERR PFX "bail65\n");
 725	free_irq(pcidev->irq, nesdev);
 726	if (nesdev->msi_enabled) {
 727		pci_disable_msi(pcidev);
 728	}
 729	bail6:
 730	printk(KERN_ERR PFX "bail6\n");
 731	tasklet_kill(&nesdev->dpc_tasklet);
 732	/* Deallocate the Adapter Structure */
 733	nes_destroy_adapter(nesdev->nesadapter);
 734
 735	bail5:
 736	printk(KERN_ERR PFX "bail5\n");
 737	iounmap(nesdev->regs);
 738
 739	bail3:
 740	printk(KERN_ERR PFX "bail3\n");
 741	kfree(nesdev);
 742
 743	bail2:
 744	pci_release_regions(pcidev);
 745
 746	bail1:
 747	pci_disable_device(pcidev);
 748
 749	bail0:
 750	return ret;
 751}
 752
 753
 754/**
 755 * nes_remove - unload from kernel
 756 */
 757static void __devexit nes_remove(struct pci_dev *pcidev)
 758{
 759	struct nes_device *nesdev = pci_get_drvdata(pcidev);
 760	struct net_device *netdev;
 761	int netdev_index = 0;
 762	unsigned long flags;
 763
 764		if (nesdev->netdev_count) {
 765			netdev = nesdev->netdev[netdev_index];
 766			if (netdev) {
 767				netif_stop_queue(netdev);
 768				unregister_netdev(netdev);
 769				nes_netdev_destroy(netdev);
 770
 771				nesdev->netdev[netdev_index] = NULL;
 772				nesdev->netdev_count--;
 773				nesdev->nesadapter->netdev_count--;
 774			}
 775		}
 776
 777	nes_notifiers_registered--;
 778	if (nes_notifiers_registered == 0) {
 779		unregister_netevent_notifier(&nes_net_notifier);
 780		unregister_inetaddr_notifier(&nes_inetaddr_notifier);
 781	}
 782
 783	list_del(&nesdev->list);
 784	nes_destroy_cqp(nesdev);
 785
 786	free_irq(pcidev->irq, nesdev);
 787	tasklet_kill(&nesdev->dpc_tasklet);
 788
 789	spin_lock_irqsave(&nesdev->nesadapter->phy_lock, flags);
 790	if (nesdev->link_recheck) {
 791		spin_unlock_irqrestore(&nesdev->nesadapter->phy_lock, flags);
 792		cancel_delayed_work_sync(&nesdev->work);
 793	} else {
 794		spin_unlock_irqrestore(&nesdev->nesadapter->phy_lock, flags);
 795	}
 796
 797	/* Deallocate the Adapter Structure */
 798	nes_destroy_adapter(nesdev->nesadapter);
 799
 800	if (nesdev->msi_enabled) {
 801		pci_disable_msi(pcidev);
 802	}
 803
 804	iounmap(nesdev->regs);
 805	kfree(nesdev);
 806
 807	/* nes_debug(NES_DBG_SHUTDOWN, "calling pci_release_regions.\n"); */
 808	pci_release_regions(pcidev);
 809	pci_disable_device(pcidev);
 810	pci_set_drvdata(pcidev, NULL);
 811}
 812
 813
 814static struct pci_driver nes_pci_driver = {
 815	.name = DRV_NAME,
 816	.id_table = nes_pci_table,
 817	.probe = nes_probe,
 818	.remove = __devexit_p(nes_remove),
 819};
 820
 821static ssize_t nes_show_adapter(struct device_driver *ddp, char *buf)
 822{
 823	unsigned int  devfn = 0xffffffff;
 824	unsigned char bus_number = 0xff;
 825	unsigned int  i = 0;
 826	struct nes_device *nesdev;
 827
 828	list_for_each_entry(nesdev, &nes_dev_list, list) {
 829		if (i == ee_flsh_adapter) {
 830			devfn = nesdev->pcidev->devfn;
 831			bus_number = nesdev->pcidev->bus->number;
 832			break;
 833		}
 834		i++;
 835	}
 836
 837	return snprintf(buf, PAGE_SIZE, "%x:%x\n", bus_number, devfn);
 838}
 839
 840static ssize_t nes_store_adapter(struct device_driver *ddp,
 841	const char *buf, size_t count)
 842{
 843	char *p = (char *)buf;
 844
 845	ee_flsh_adapter = simple_strtoul(p, &p, 10);
 846	return strnlen(buf, count);
 847}
 848
 849static ssize_t nes_show_ee_cmd(struct device_driver *ddp, char *buf)
 850{
 851	u32 eeprom_cmd = 0xdead;
 852	u32 i = 0;
 853	struct nes_device *nesdev;
 854
 855	list_for_each_entry(nesdev, &nes_dev_list, list) {
 856		if (i == ee_flsh_adapter) {
 857			eeprom_cmd = nes_read32(nesdev->regs + NES_EEPROM_COMMAND);
 858			break;
 859		}
 860		i++;
 861	}
 862	return snprintf(buf, PAGE_SIZE, "0x%x\n", eeprom_cmd);
 863}
 864
 865static ssize_t nes_store_ee_cmd(struct device_driver *ddp,
 866	const char *buf, size_t count)
 867{
 868	char *p = (char *)buf;
 869	u32 val;
 870	u32 i = 0;
 871	struct nes_device *nesdev;
 872
 873	if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
 874		val = simple_strtoul(p, &p, 16);
 875		list_for_each_entry(nesdev, &nes_dev_list, list) {
 876			if (i == ee_flsh_adapter) {
 877				nes_write32(nesdev->regs + NES_EEPROM_COMMAND, val);
 878				break;
 879			}
 880			i++;
 881		}
 882	}
 883	return strnlen(buf, count);
 884}
 885
 886static ssize_t nes_show_ee_data(struct device_driver *ddp, char *buf)
 887{
 888	u32 eeprom_data = 0xdead;
 889	u32 i = 0;
 890	struct nes_device *nesdev;
 891
 892	list_for_each_entry(nesdev, &nes_dev_list, list) {
 893		if (i == ee_flsh_adapter) {
 894			eeprom_data = nes_read32(nesdev->regs + NES_EEPROM_DATA);
 895			break;
 896		}
 897		i++;
 898	}
 899
 900	return  snprintf(buf, PAGE_SIZE, "0x%x\n", eeprom_data);
 901}
 902
 903static ssize_t nes_store_ee_data(struct device_driver *ddp,
 904	const char *buf, size_t count)
 905{
 906	char *p = (char *)buf;
 907	u32 val;
 908	u32 i = 0;
 909	struct nes_device *nesdev;
 910
 911	if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
 912		val = simple_strtoul(p, &p, 16);
 913		list_for_each_entry(nesdev, &nes_dev_list, list) {
 914			if (i == ee_flsh_adapter) {
 915				nes_write32(nesdev->regs + NES_EEPROM_DATA, val);
 916				break;
 917			}
 918			i++;
 919		}
 920	}
 921	return strnlen(buf, count);
 922}
 923
 924static ssize_t nes_show_flash_cmd(struct device_driver *ddp, char *buf)
 925{
 926	u32 flash_cmd = 0xdead;
 927	u32 i = 0;
 928	struct nes_device *nesdev;
 929
 930	list_for_each_entry(nesdev, &nes_dev_list, list) {
 931		if (i == ee_flsh_adapter) {
 932			flash_cmd = nes_read32(nesdev->regs + NES_FLASH_COMMAND);
 933			break;
 934		}
 935		i++;
 936	}
 937
 938	return  snprintf(buf, PAGE_SIZE, "0x%x\n", flash_cmd);
 939}
 940
 941static ssize_t nes_store_flash_cmd(struct device_driver *ddp,
 942	const char *buf, size_t count)
 943{
 944	char *p = (char *)buf;
 945	u32 val;
 946	u32 i = 0;
 947	struct nes_device *nesdev;
 948
 949	if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
 950		val = simple_strtoul(p, &p, 16);
 951		list_for_each_entry(nesdev, &nes_dev_list, list) {
 952			if (i == ee_flsh_adapter) {
 953				nes_write32(nesdev->regs + NES_FLASH_COMMAND, val);
 954				break;
 955			}
 956			i++;
 957		}
 958	}
 959	return strnlen(buf, count);
 960}
 961
 962static ssize_t nes_show_flash_data(struct device_driver *ddp, char *buf)
 963{
 964	u32 flash_data = 0xdead;
 965	u32 i = 0;
 966	struct nes_device *nesdev;
 967
 968	list_for_each_entry(nesdev, &nes_dev_list, list) {
 969		if (i == ee_flsh_adapter) {
 970			flash_data = nes_read32(nesdev->regs + NES_FLASH_DATA);
 971			break;
 972		}
 973		i++;
 974	}
 975
 976	return  snprintf(buf, PAGE_SIZE, "0x%x\n", flash_data);
 977}
 978
 979static ssize_t nes_store_flash_data(struct device_driver *ddp,
 980	const char *buf, size_t count)
 981{
 982	char *p = (char *)buf;
 983	u32 val;
 984	u32 i = 0;
 985	struct nes_device *nesdev;
 986
 987	if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
 988		val = simple_strtoul(p, &p, 16);
 989		list_for_each_entry(nesdev, &nes_dev_list, list) {
 990			if (i == ee_flsh_adapter) {
 991				nes_write32(nesdev->regs + NES_FLASH_DATA, val);
 992				break;
 993			}
 994			i++;
 995		}
 996	}
 997	return strnlen(buf, count);
 998}
 999
1000static ssize_t nes_show_nonidx_addr(struct device_driver *ddp, char *buf)
1001{
1002	return  snprintf(buf, PAGE_SIZE, "0x%x\n", sysfs_nonidx_addr);
1003}
1004
1005static ssize_t nes_store_nonidx_addr(struct device_driver *ddp,
1006	const char *buf, size_t count)
1007{
1008	char *p = (char *)buf;
1009
1010	if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X')
1011		sysfs_nonidx_addr = simple_strtoul(p, &p, 16);
1012
1013	return strnlen(buf, count);
1014}
1015
1016static ssize_t nes_show_nonidx_data(struct device_driver *ddp, char *buf)
1017{
1018	u32 nonidx_data = 0xdead;
1019	u32 i = 0;
1020	struct nes_device *nesdev;
1021
1022	list_for_each_entry(nesdev, &nes_dev_list, list) {
1023		if (i == ee_flsh_adapter) {
1024			nonidx_data = nes_read32(nesdev->regs + sysfs_nonidx_addr);
1025			break;
1026		}
1027		i++;
1028	}
1029
1030	return  snprintf(buf, PAGE_SIZE, "0x%x\n", nonidx_data);
1031}
1032
1033static ssize_t nes_store_nonidx_data(struct device_driver *ddp,
1034	const char *buf, size_t count)
1035{
1036	char *p = (char *)buf;
1037	u32 val;
1038	u32 i = 0;
1039	struct nes_device *nesdev;
1040
1041	if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
1042		val = simple_strtoul(p, &p, 16);
1043		list_for_each_entry(nesdev, &nes_dev_list, list) {
1044			if (i == ee_flsh_adapter) {
1045				nes_write32(nesdev->regs + sysfs_nonidx_addr, val);
1046				break;
1047			}
1048			i++;
1049		}
1050	}
1051	return strnlen(buf, count);
1052}
1053
1054static ssize_t nes_show_idx_addr(struct device_driver *ddp, char *buf)
1055{
1056	return  snprintf(buf, PAGE_SIZE, "0x%x\n", sysfs_idx_addr);
1057}
1058
1059static ssize_t nes_store_idx_addr(struct device_driver *ddp,
1060	const char *buf, size_t count)
1061{
1062	char *p = (char *)buf;
1063
1064	if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X')
1065		sysfs_idx_addr = simple_strtoul(p, &p, 16);
1066
1067	return strnlen(buf, count);
1068}
1069
1070static ssize_t nes_show_idx_data(struct device_driver *ddp, char *buf)
1071{
1072	u32 idx_data = 0xdead;
1073	u32 i = 0;
1074	struct nes_device *nesdev;
1075
1076	list_for_each_entry(nesdev, &nes_dev_list, list) {
1077		if (i == ee_flsh_adapter) {
1078			idx_data = nes_read_indexed(nesdev, sysfs_idx_addr);
1079			break;
1080		}
1081		i++;
1082	}
1083
1084	return  snprintf(buf, PAGE_SIZE, "0x%x\n", idx_data);
1085}
1086
1087static ssize_t nes_store_idx_data(struct device_driver *ddp,
1088	const char *buf, size_t count)
1089{
1090	char *p = (char *)buf;
1091	u32 val;
1092	u32 i = 0;
1093	struct nes_device *nesdev;
1094
1095	if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
1096		val = simple_strtoul(p, &p, 16);
1097		list_for_each_entry(nesdev, &nes_dev_list, list) {
1098			if (i == ee_flsh_adapter) {
1099				nes_write_indexed(nesdev, sysfs_idx_addr, val);
1100				break;
1101			}
1102			i++;
1103		}
1104	}
1105	return strnlen(buf, count);
1106}
1107
1108
1109/**
1110 * nes_show_wqm_quanta
1111 */
1112static ssize_t nes_show_wqm_quanta(struct device_driver *ddp, char *buf)
1113{
1114	u32 wqm_quanta_value = 0xdead;
1115	u32 i = 0;
1116	struct nes_device *nesdev;
1117
1118	list_for_each_entry(nesdev, &nes_dev_list, list) {
1119		if (i == ee_flsh_adapter) {
1120			wqm_quanta_value = nesdev->nesadapter->wqm_quanta;
1121			break;
1122		}
1123		i++;
1124	}
1125
1126	return  snprintf(buf, PAGE_SIZE, "0x%X\n", wqm_quanta_value);
1127}
1128
1129
1130/**
1131 * nes_store_wqm_quanta
1132 */
1133static ssize_t nes_store_wqm_quanta(struct device_driver *ddp,
1134					const char *buf, size_t count)
1135{
1136	unsigned long wqm_quanta_value;
1137	u32 wqm_config1;
1138	u32 i = 0;
1139	struct nes_device *nesdev;
1140
1141	if (kstrtoul(buf, 0, &wqm_quanta_value) < 0)
1142		return -EINVAL;
1143
1144	list_for_each_entry(nesdev, &nes_dev_list, list) {
1145		if (i == ee_flsh_adapter) {
1146			nesdev->nesadapter->wqm_quanta = wqm_quanta_value;
1147			wqm_config1 = nes_read_indexed(nesdev,
1148						NES_IDX_WQM_CONFIG1);
1149			nes_write_indexed(nesdev, NES_IDX_WQM_CONFIG1,
1150					((wqm_quanta_value << 1) |
1151					(wqm_config1 & 0x00000001)));
1152			break;
1153		}
1154		i++;
1155	}
1156	return strnlen(buf, count);
1157}
1158
1159static DRIVER_ATTR(adapter, S_IRUSR | S_IWUSR,
1160		   nes_show_adapter, nes_store_adapter);
1161static DRIVER_ATTR(eeprom_cmd, S_IRUSR | S_IWUSR,
1162		   nes_show_ee_cmd, nes_store_ee_cmd);
1163static DRIVER_ATTR(eeprom_data, S_IRUSR | S_IWUSR,
1164		   nes_show_ee_data, nes_store_ee_data);
1165static DRIVER_ATTR(flash_cmd, S_IRUSR | S_IWUSR,
1166		   nes_show_flash_cmd, nes_store_flash_cmd);
1167static DRIVER_ATTR(flash_data, S_IRUSR | S_IWUSR,
1168		   nes_show_flash_data, nes_store_flash_data);
1169static DRIVER_ATTR(nonidx_addr, S_IRUSR | S_IWUSR,
1170		   nes_show_nonidx_addr, nes_store_nonidx_addr);
1171static DRIVER_ATTR(nonidx_data, S_IRUSR | S_IWUSR,
1172		   nes_show_nonidx_data, nes_store_nonidx_data);
1173static DRIVER_ATTR(idx_addr, S_IRUSR | S_IWUSR,
1174		   nes_show_idx_addr, nes_store_idx_addr);
1175static DRIVER_ATTR(idx_data, S_IRUSR | S_IWUSR,
1176		   nes_show_idx_data, nes_store_idx_data);
1177static DRIVER_ATTR(wqm_quanta, S_IRUSR | S_IWUSR,
1178		   nes_show_wqm_quanta, nes_store_wqm_quanta);
1179
1180static int nes_create_driver_sysfs(struct pci_driver *drv)
1181{
1182	int error;
1183	error  = driver_create_file(&drv->driver, &driver_attr_adapter);
1184	error |= driver_create_file(&drv->driver, &driver_attr_eeprom_cmd);
1185	error |= driver_create_file(&drv->driver, &driver_attr_eeprom_data);
1186	error |= driver_create_file(&drv->driver, &driver_attr_flash_cmd);
1187	error |= driver_create_file(&drv->driver, &driver_attr_flash_data);
1188	error |= driver_create_file(&drv->driver, &driver_attr_nonidx_addr);
1189	error |= driver_create_file(&drv->driver, &driver_attr_nonidx_data);
1190	error |= driver_create_file(&drv->driver, &driver_attr_idx_addr);
1191	error |= driver_create_file(&drv->driver, &driver_attr_idx_data);
1192	error |= driver_create_file(&drv->driver, &driver_attr_wqm_quanta);
1193	return error;
1194}
1195
1196static void nes_remove_driver_sysfs(struct pci_driver *drv)
1197{
1198	driver_remove_file(&drv->driver, &driver_attr_adapter);
1199	driver_remove_file(&drv->driver, &driver_attr_eeprom_cmd);
1200	driver_remove_file(&drv->driver, &driver_attr_eeprom_data);
1201	driver_remove_file(&drv->driver, &driver_attr_flash_cmd);
1202	driver_remove_file(&drv->driver, &driver_attr_flash_data);
1203	driver_remove_file(&drv->driver, &driver_attr_nonidx_addr);
1204	driver_remove_file(&drv->driver, &driver_attr_nonidx_data);
1205	driver_remove_file(&drv->driver, &driver_attr_idx_addr);
1206	driver_remove_file(&drv->driver, &driver_attr_idx_data);
1207	driver_remove_file(&drv->driver, &driver_attr_wqm_quanta);
1208}
1209
1210/**
1211 * nes_init_module - module initialization entry point
1212 */
1213static int __init nes_init_module(void)
1214{
1215	int retval;
1216	int retval1;
1217
1218	retval = nes_cm_start();
1219	if (retval) {
1220		printk(KERN_ERR PFX "Unable to start NetEffect iWARP CM.\n");
1221		return retval;
1222	}
1223	retval = pci_register_driver(&nes_pci_driver);
1224	if (retval >= 0) {
1225		retval1 = nes_create_driver_sysfs(&nes_pci_driver);
1226		if (retval1 < 0)
1227			printk(KERN_ERR PFX "Unable to create NetEffect sys files.\n");
1228	}
1229	return retval;
1230}
1231
1232
1233/**
1234 * nes_exit_module - module unload entry point
1235 */
1236static void __exit nes_exit_module(void)
1237{
1238	nes_cm_stop();
1239	nes_remove_driver_sysfs(&nes_pci_driver);
1240
1241	pci_unregister_driver(&nes_pci_driver);
1242}
1243
1244
1245module_init(nes_init_module);
1246module_exit(nes_exit_module);