summaryrefslogtreecommitdiffstats
path: root/drivers/infiniband/hw/nes/nes.c
blob: fb7d243b1a238cf6b3f4233f72b6ab8c45b699b3 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
/*
 * Copyright (c) 2006 - 2008 NetEffect, Inc. All rights reserved.
 * Copyright (c) 2005 Open Grid Computing, Inc. All rights reserved.
 *
 * This software is available to you under a choice of one of two
 * licenses.  You may choose to be licensed under the terms of the GNU
 * General Public License (GPL) Version 2, available from the file
 * COPYING in the main directory of this source tree, or the
 * OpenIB.org BSD license below:
 *
 *     Redistribution and use in source and binary forms, with or
 *     without modification, are permitted provided that the following
 *     conditions are met:
 *
 *      - Redistributions of source code must retain the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer.
 *
 *      - Redistributions in binary form must reproduce the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer in the documentation and/or other materials
 *        provided with the distribution.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/ethtool.h>
#include <linux/mii.h>
#include <linux/if_vlan.h>
#include <linux/crc32.h>
#include <linux/in.h>
#include <linux/fs.h>
#include <linux/init.h>
#include <linux/if_arp.h>
#include <linux/highmem.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/byteorder.h>
#include <rdma/ib_smi.h>
#include <rdma/ib_verbs.h>
#include <rdma/ib_pack.h>
#include <rdma/iw_cm.h>

#include "nes.h"

#include <net/netevent.h>
#include <net/neighbour.h>
#include <linux/route.h>
#include <net/ip_fib.h>

MODULE_AUTHOR("NetEffect");
MODULE_DESCRIPTION("NetEffect RNIC Low-level iWARP Driver");
MODULE_LICENSE("Dual BSD/GPL");
MODULE_VERSION(DRV_VERSION);

int max_mtu = 9000;
int interrupt_mod_interval = 0;


/* Interoperability */
int mpa_version = 1;
module_param(mpa_version, int, 0644);
MODULE_PARM_DESC(mpa_version, "MPA version to be used int MPA Req/Resp (0 or 1)");

/* Interoperability */
int disable_mpa_crc = 0;
module_param(disable_mpa_crc, int, 0644);
MODULE_PARM_DESC(disable_mpa_crc, "Disable checking of MPA CRC");

unsigned int send_first = 0;
module_param(send_first, int, 0644);
MODULE_PARM_DESC(send_first, "Send RDMA Message First on Active Connection");


unsigned int nes_drv_opt = 0;
module_param(nes_drv_opt, int, 0644);
MODULE_PARM_DESC(nes_drv_opt, "Driver option parameters");

unsigned int nes_debug_level = 0;
module_param_named(debug_level, nes_debug_level, uint, 0644);
MODULE_PARM_DESC(debug_level, "Enable debug output level");

unsigned int wqm_quanta = 0x10000;
module_param(wqm_quanta, int, 0644);
MODULE_PARM_DESC(wqm_quanta, "WQM quanta");

LIST_HEAD(nes_adapter_list);
static LIST_HEAD(nes_dev_list);

atomic_t qps_destroyed;

static unsigned int ee_flsh_adapter;
static unsigned int sysfs_nonidx_addr;
static unsigned int sysfs_idx_addr;

static struct pci_device_id nes_pci_table[] = {
	{PCI_VENDOR_ID_NETEFFECT, PCI_DEVICE_ID_NETEFFECT_NE020, PCI_ANY_ID, PCI_ANY_ID},
	{0}
};

MODULE_DEVICE_TABLE(pci, nes_pci_table);

static int nes_inetaddr_event(struct notifier_block *, unsigned long, void *);
static int nes_net_event(struct notifier_block *, unsigned long, void *);
static int nes_notifiers_registered;


static struct notifier_block nes_inetaddr_notifier = {
	.notifier_call = nes_inetaddr_event
};

static struct notifier_block nes_net_notifier = {
	.notifier_call = nes_net_event
};




/**
 * nes_inetaddr_event
 */
static int nes_inetaddr_event(struct notifier_block *notifier,
		unsigned long event, void *ptr)
{
	struct in_ifaddr *ifa = ptr;
	struct net_device *event_netdev = ifa->ifa_dev->dev;
	struct nes_device *nesdev;
	struct net_device *netdev;
	struct nes_vnic *nesvnic;

	nes_debug(NES_DBG_NETDEV, "nes_inetaddr_event: ip address %pI4, netmask %pI4.\n",
		  &ifa->ifa_address, &ifa->ifa_mask);
	list_for_each_entry(nesdev, &nes_dev_list, list) {
		nes_debug(NES_DBG_NETDEV, "Nesdev list entry = 0x%p. (%s)\n",
				nesdev, nesdev->netdev[0]->name);
		netdev = nesdev->netdev[0];
		nesvnic = netdev_priv(netdev);
		if (netdev == event_netdev) {
			if (nesvnic->rdma_enabled == 0) {
				nes_debug(NES_DBG_NETDEV, "Returning without processing event for %s since"
						" RDMA is not enabled.\n",
						netdev->name);
				return NOTIFY_OK;
			}
			/* we have ifa->ifa_address/mask here if we need it */
			switch (event) {
				case NETDEV_DOWN:
					nes_debug(NES_DBG_NETDEV, "event:DOWN\n");
					nes_write_indexed(nesdev,
							NES_IDX_DST_IP_ADDR+(0x10*PCI_FUNC(nesdev->pcidev->devfn)), 0);

					nes_manage_arp_cache(netdev, netdev->dev_addr,
							ntohl(nesvnic->local_ipaddr), NES_ARP_DELETE);
					nesvnic->local_ipaddr = 0;
					return NOTIFY_OK;
					break;
				case NETDEV_UP:
					nes_debug(NES_DBG_NETDEV, "event:UP\n");

					if (nesvnic->local_ipaddr != 0) {
						nes_debug(NES_DBG_NETDEV, "Interface already has local_ipaddr\n");
						return NOTIFY_OK;
					}
					/* Add the address to the IP table */
					nesvnic->local_ipaddr = ifa->ifa_address;

					nes_write_indexed(nesdev,
							NES_IDX_DST_IP_ADDR+(0x10*PCI_FUNC(nesdev->pcidev->devfn)),
							ntohl(ifa->ifa_address));
					nes_manage_arp_cache(netdev, netdev->dev_addr,
							ntohl(nesvnic->local_ipaddr), NES_ARP_ADD);
					return NOTIFY_OK;
					break;
				default:
					break;
			}
		}
	}

	return NOTIFY_DONE;
}


/**
 * nes_net_event
 */
static int nes_net_event(struct notifier_block *notifier,
		unsigned long event, void *ptr)
{
	struct neighbour *neigh = ptr;
	struct nes_device *nesdev;
	struct net_device *netdev;
	struct nes_vnic *nesvnic;

	switch (event) {
		case NETEVENT_NEIGH_UPDATE:
			list_for_each_entry(nesdev, &nes_dev_list, list) {
				/* nes_debug(NES_DBG_NETDEV, "Nesdev list entry = 0x%p.\n", nesdev); */
				netdev = nesdev->netdev[0];
				nesvnic = netdev_priv(netdev);
				if (netdev == neigh->dev) {
					if (nesvnic->rdma_enabled == 0) {
						nes_debug(NES_DBG_NETDEV, "Skipping device %s since no RDMA\n",
								netdev->name);
					} else {
						if (neigh->nud_state & NUD_VALID) {
							nes_manage_arp_cache(neigh->dev, neigh->ha,
									ntohl(*(__be32 *)neigh->primary_key), NES_ARP_ADD);
						} else {
							nes_manage_arp_cache(neigh->dev, neigh->ha,
									ntohl(*(__be32 *)neigh->primary_key), NES_ARP_DELETE);
						}
					}
					return NOTIFY_OK;
				}
			}
			break;
		default:
			nes_debug(NES_DBG_NETDEV, "NETEVENT_ %lu undefined\n", event);
			break;
	}

	return NOTIFY_DONE;
}


/**
 * nes_add_ref
 */
void nes_add_ref(struct ib_qp *ibqp)
{
	struct nes_qp *nesqp;

	nesqp = to_nesqp(ibqp);
	nes_debug(NES_DBG_QP, "Bumping refcount for QP%u.  Pre-inc value = %u\n",
			ibqp->qp_num, atomic_read(&nesqp->refcount));
	atomic_inc(&nesqp->refcount);
}

static void nes_cqp_rem_ref_callback(struct nes_device *nesdev, struct nes_cqp_request *cqp_request)
{
	unsigned long flags;
	struct nes_qp *nesqp = cqp_request->cqp_callback_pointer;
	struct nes_adapter *nesadapter = nesdev->nesadapter;
	u32 qp_id;

	atomic_inc(&qps_destroyed);

	/* Free the control structures */

	qp_id = nesqp->hwqp.qp_id;
	if (nesqp->pbl_vbase) {
		pci_free_consistent(nesdev->pcidev, nesqp->qp_mem_size,
				nesqp->hwqp.q2_vbase, nesqp->hwqp.q2_pbase);
		spin_lock_irqsave(&nesadapter->pbl_lock, flags);
		nesadapter->free_256pbl++;
		spin_unlock_irqrestore(&nesadapter->pbl_lock, flags);
		pci_free_consistent(nesdev->pcidev, 256, nesqp->pbl_vbase, nesqp->pbl_pbase);
		nesqp->pbl_vbase = NULL;

	} else {
		pci_free_consistent(nesdev->pcidev, nesqp->qp_mem_size,
				nesqp->hwqp.sq_vbase, nesqp->hwqp.sq_pbase);
	}
	nes_free_resource(nesadapter, nesadapter->allocated_qps, nesqp->hwqp.qp_id);

	nesadapter->qp_table[nesqp->hwqp.qp_id-NES_FIRST_QPN] = NULL;
	kfree(nesqp->allocated_buffer);

}

/**
 * nes_rem_ref
 */
void nes_rem_ref(struct ib_qp *ibqp)
{
	u64 u64temp;
	struct nes_qp *nesqp;
	struct nes_vnic *nesvnic = to_nesvnic(ibqp->device);
	struct nes_device *nesdev = nesvnic->nesdev;
	struct nes_hw_cqp_wqe *cqp_wqe;
	struct nes_cqp_request *cqp_request;
	u32 opcode;

	nesqp = to_nesqp(ibqp);

	if (atomic_read(&nesqp->refcount) == 0) {
		printk(KERN_INFO PFX "%s: Reference count already 0 for QP%d, last aeq = 0x%04X.\n",
				__func__, ibqp->qp_num, nesqp->last_aeq);
		BUG();
	}

	if (atomic_dec_and_test(&nesqp->refcount)) {
		/* Destroy the QP */
		cqp_request = nes_get_cqp_request(nesdev);
		if (cqp_request == NULL) {
			nes_debug(NES_DBG_QP, "Failed to get a cqp_request.\n");
			return;
		}
		cqp_request->waiting = 0;
		cqp_request->callback = 1;
		cqp_request->cqp_callback = nes_cqp_rem_ref_callback;
		cqp_request->cqp_callback_pointer = nesqp;
		cqp_wqe = &cqp_request->cqp_wqe;

		nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
		opcode = NES_CQP_DESTROY_QP | NES_CQP_QP_TYPE_IWARP;

		if (nesqp->hte_added) {
			opcode  |= NES_CQP_QP_DEL_HTE;
			nesqp->hte_added = 0;
		}
		set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, opcode);
		set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX, nesqp->hwqp.qp_id);
		u64temp = (u64)nesqp->nesqp_context_pbase;
		set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_QP_WQE_CONTEXT_LOW_IDX, u64temp);
		nes_post_cqp_request(nesdev, cqp_request);
	}
}


/**
 * nes_get_qp
 */
struct ib_qp *nes_get_qp(struct ib_device *device, int qpn)
{
	struct nes_vnic *nesvnic = to_nesvnic(device);
	struct nes_device *nesdev = nesvnic->nesdev;
	struct nes_adapter *nesadapter = nesdev->nesadapter;

	if ((qpn < NES_FIRST_QPN) || (qpn >= (NES_FIRST_QPN + nesadapter->max_qp)))
		return NULL;

	return &nesadapter->qp_table[qpn - NES_FIRST_QPN]->ibqp;
}


/**
 * nes_print_macaddr
 */
static void nes_print_macaddr(struct net_device *netdev)
{
	nes_debug(NES_DBG_INIT, "%s: %pM, IRQ %u\n",
		  netdev->name, netdev->dev_addr, netdev->irq);
}

/**
 * nes_interrupt - handle interrupts
 */
static irqreturn_t nes_interrupt(int irq, void *dev_id)
{
	struct nes_device *nesdev = (struct nes_device *)dev_id;
	int handled = 0;
	u32 int_mask;
	u32 int_req;
	u32 int_stat;
	u32 intf_int_stat;
	u32 timer_stat;

	if (nesdev->msi_enabled) {
		/* No need to read the interrupt pending register if msi is enabled */
		handled = 1;
	} else {
		if (unlikely(nesdev->nesadapter->hw_rev == NE020_REV)) {
			/* Master interrupt enable provides synchronization for kicking off bottom half
			  when interrupt sharing is going on */
			int_mask = nes_read32(nesdev->regs + NES_INT_MASK);
			if (int_mask & 0x80000000) {
				/* Check interrupt status to see if this might be ours */
				int_stat = nes_read32(nesdev->regs + NES_INT_STAT);
				int_req = nesdev->int_req;
				if (int_stat&int_req) {
					/* if interesting CEQ or AEQ is pending, claim the interrupt */
					if ((int_stat&int_req) & (~(NES_INT_TIMER|NES_INT_INTF))) {
						handled = 1;
					} else {
						if (((int_stat & int_req) & NES_INT_TIMER) == NES_INT_TIMER) {
							/* Timer might be running but might be for another function */
							timer_stat = nes_read32(nesdev->regs + NES_TIMER_STAT);
							if ((timer_stat & nesdev->timer_int_req) != 0) {
								handled = 1;
							}
						}
						if ((((int_stat & int_req) & NES_INT_INTF) == NES_INT_INTF) &&
								(handled == 0)) {
							intf_int_stat = nes_read32(nesdev->regs+NES_INTF_INT_STAT);
							if ((intf_int_stat & nesdev->intf_int_req) != 0) {
								handled = 1;
							}
						}
					}
					if (handled) {
						nes_write32(nesdev->regs+NES_INT_MASK, int_mask & (~0x80000000));
						int_mask = nes_read32(nesdev->regs+NES_INT_MASK);
						/* Save off the status to save an additional read */
						nesdev->int_stat = int_stat;
						nesdev->napi_isr_ran = 1;
					}
				}
			}
		} else {
			handled = nes_read32(nesdev->regs+NES_INT_PENDING);
		}
	}

	if (handled) {

		if (nes_napi_isr(nesdev) == 0) {
			tasklet_schedule(&nesdev->dpc_tasklet);

		}
		return IRQ_HANDLED;
	} else {
		return IRQ_NONE;
	}
}


/**
 * nes_probe - Device initialization
 */
static int __devinit nes_probe(struct pci_dev *pcidev, const struct pci_device_id *ent)
{
	struct net_device *netdev = NULL;
	struct nes_device *nesdev = NULL;
	int ret = 0;
	struct nes_vnic *nesvnic = NULL;
	void __iomem *mmio_regs = NULL;
	u8 hw_rev;

	assert(pcidev != NULL);
	assert(ent != NULL);

	printk(KERN_INFO PFX "NetEffect RNIC driver v%s loading. (%s)\n",
			DRV_VERSION, pci_name(pcidev));

	ret = pci_enable_device(pcidev);
	if (ret) {
		printk(KERN_ERR PFX "Unable to enable PCI device. (%s)\n", pci_name(pcidev));
		goto bail0;
	}

	nes_debug(NES_DBG_INIT, "BAR0 (@0x%08lX) size = 0x%lX bytes\n",
			(long unsigned int)pci_resource_start(pcidev, BAR_0),
			(long unsigned int)pci_resource_len(pcidev, BAR_0));
	nes_debug(NES_DBG_INIT, "BAR1 (@0x%08lX) size = 0x%lX bytes\n",
			(long unsigned int)pci_resource_start(pcidev, BAR_1),
			(long unsigned int)pci_resource_len(pcidev, BAR_1));

	/* Make sure PCI base addr are MMIO */
	if (!(pci_resource_flags(pcidev, BAR_0) & IORESOURCE_MEM) ||
			!(pci_resource_flags(pcidev, BAR_1) & IORESOURCE_MEM)) {
		printk(KERN_ERR PFX "PCI regions not an MMIO resource\n");
		ret = -ENODEV;
		goto bail1;
	}

	/* Reserve PCI I/O and memory resources */
	ret = pci_request_regions(pcidev, DRV_NAME);
	if (ret) {
		printk(KERN_ERR PFX "Unable to request regions. (%s)\n", pci_name(pcidev));
		goto bail1;
	}

	if ((sizeof(dma_addr_t) > 4)) {
		ret = pci_set_dma_mask(pcidev, DMA_64BIT_MASK);
		if (ret < 0) {
			printk(KERN_ERR PFX "64b DMA mask configuration failed\n");
			goto bail2;
		}
		ret = pci_set_consistent_dma_mask(pcidev, DMA_64BIT_MASK);
		if (ret) {
			printk(KERN_ERR PFX "64b DMA consistent mask configuration failed\n");
			goto bail2;
		}
	} else {
		ret = pci_set_dma_mask(pcidev, DMA_32BIT_MASK);
		if (ret < 0) {
			printk(KERN_ERR PFX "32b DMA mask configuration failed\n");
			goto bail2;
		}
		ret = pci_set_consistent_dma_mask(pcidev, DMA_32BIT_MASK);
		if (ret) {
			printk(KERN_ERR PFX "32b DMA consistent mask configuration failed\n");
			goto bail2;
		}
	}

	pci_set_master(pcidev);

	/* Allocate hardware structure */
	nesdev = kzalloc(sizeof(struct nes_device), GFP_KERNEL);
	if (!nesdev) {
		printk(KERN_ERR PFX "%s: Unable to alloc hardware struct\n", pci_name(pcidev));
		ret = -ENOMEM;
		goto bail2;
	}

	nes_debug(NES_DBG_INIT, "Allocated nes device at %p\n", nesdev);
	nesdev->pcidev = pcidev;
	pci_set_drvdata(pcidev, nesdev);

	pci_read_config_byte(pcidev, 0x0008, &hw_rev);
	nes_debug(NES_DBG_INIT, "hw_rev=%u\n", hw_rev);

	spin_lock_init(&nesdev->indexed_regs_lock);

	/* Remap the PCI registers in adapter BAR0 to kernel VA space */
	mmio_regs = ioremap_nocache(pci_resource_start(pcidev, BAR_0), sizeof(mmio_regs));
	if (mmio_regs == NULL) {
		printk(KERN_ERR PFX "Unable to remap BAR0\n");
		ret = -EIO;
		goto bail3;
	}
	nesdev->regs = mmio_regs;
	nesdev->index_reg = 0x50 + (PCI_FUNC(pcidev->devfn)*8) + mmio_regs;

	/* Ensure interrupts are disabled */
	nes_write32(nesdev->regs+NES_INT_MASK, 0x7fffffff);

	if (nes_drv_opt & NES_DRV_OPT_ENABLE_MSI) {
		if (!pci_enable_msi(nesdev->pcidev)) {
			nesdev->msi_enabled = 1;
			nes_debug(NES_DBG_INIT, "MSI is enabled for device %s\n",
					pci_name(pcidev));
		} else {
			nes_debug(NES_DBG_INIT, "MSI is disabled by linux for device %s\n",
					pci_name(pcidev));
		}
	} else {
		nes_debug(NES_DBG_INIT, "MSI not requested due to driver options for device %s\n",
				pci_name(pcidev));
	}

	nesdev->csr_start = pci_resource_start(nesdev->pcidev, BAR_0);
	nesdev->doorbell_region = pci_resource_start(nesdev->pcidev, BAR_1);

	/* Init the adapter */
	nesdev->nesadapter = nes_init_adapter(nesdev, hw_rev);
	if (!nesdev->nesadapter) {
		printk(KERN_ERR PFX "Unable to initialize adapter.\n");
		ret = -ENOMEM;
		goto bail5;
	}
	nesdev->nesadapter->et_rx_coalesce_usecs_irq = interrupt_mod_interval;
	nesdev->nesadapter->wqm_quanta = wqm_quanta;

	/* nesdev->base_doorbell_index =
			nesdev->nesadapter->pd_config_base[PCI_FUNC(nesdev->pcidev->devfn)]; */
	nesdev->base_doorbell_index = 1;
	nesdev->doorbell_start = nesdev->nesadapter->doorbell_start;
	if (nesdev->nesadapter->phy_type[0] == NES_PHY_TYPE_PUMA_1G) {
		switch (PCI_FUNC(nesdev->pcidev->devfn) %
			nesdev->nesadapter->port_count) {
		case 1:
			nesdev->mac_index = 2;
			break;
		case 2:
			nesdev->mac_index = 1;
			break;
		case 3:
			nesdev->mac_index = 3;
			break;
		case 0:
		default:
			nesdev->mac_index = 0;
		}
	} else {
		nesdev->mac_index = PCI_FUNC(nesdev->pcidev->devfn) %
						nesdev->nesadapter->port_count;
	}

	tasklet_init(&nesdev->dpc_tasklet, nes_dpc, (unsigned long)nesdev);

	/* bring up the Control QP */
	if (nes_init_cqp(nesdev)) {
		ret = -ENODEV;
		goto bail6;
	}

	/* Arm the CCQ */
	nes_write32(nesdev->regs+NES_CQE_ALLOC, NES_CQE_ALLOC_NOTIFY_NEXT |
			PCI_FUNC(nesdev->pcidev->devfn));
	nes_read32(nesdev->regs+NES_CQE_ALLOC);

	/* Enable the interrupts */
	nesdev->int_req = (0x101 << PCI_FUNC(nesdev->pcidev->devfn)) |
			(1 << (PCI_FUNC(nesdev->pcidev->devfn)+16));
	if (PCI_FUNC(nesdev->pcidev->devfn) < 4) {
		nesdev->int_req |= (1 << (PCI_FUNC(nesdev->mac_index)+24));
	}

	/* TODO: This really should be the first driver to load, not function 0 */
	if (PCI_FUNC(nesdev->pcidev->devfn) == 0) {
		/* pick up PCI and critical errors if the first driver to load */
		nesdev->intf_int_req = NES_INTF_INT_PCIERR | NES_INTF_INT_CRITERR;
		nesdev->int_req |= NES_INT_INTF;
	} else {
		nesdev->intf_int_req = 0;
	}
	nesdev->intf_int_req |= (1 << (PCI_FUNC(nesdev->pcidev->devfn)+16));
	nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS0, 0);
	nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS1, 0);
	nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS2, 0x00001265);
	nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS4, 0x18021804);

	nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS3, 0x17801790);

	/* deal with both periodic and one_shot */
	nesdev->timer_int_req = 0x101 << PCI_FUNC(nesdev->pcidev->devfn);
	nesdev->nesadapter->timer_int_req |= nesdev->timer_int_req;
	nes_debug(NES_DBG_INIT, "setting int_req for function %u, nesdev = 0x%04X, adapter = 0x%04X\n",
			PCI_FUNC(nesdev->pcidev->devfn),
			nesdev->timer_int_req, nesdev->nesadapter->timer_int_req);

	nes_write32(nesdev->regs+NES_INTF_INT_MASK, ~(nesdev->intf_int_req));

	list_add_tail(&nesdev->list, &nes_dev_list);

	/* Request an interrupt line for the driver */
	ret = request_irq(pcidev->irq, nes_interrupt, IRQF_SHARED, DRV_NAME, nesdev);
	if (ret) {
		printk(KERN_ERR PFX "%s: requested IRQ %u is busy\n",
				pci_name(pcidev), pcidev->irq);
		goto bail65;
	}

	nes_write32(nesdev->regs+NES_INT_MASK, ~nesdev->int_req);

	if (nes_notifiers_registered == 0) {
		register_inetaddr_notifier(&nes_inetaddr_notifier);
		register_netevent_notifier(&nes_net_notifier);
	}
	nes_notifiers_registered++;

	/* Initialize network devices */
		if ((netdev = nes_netdev_init(nesdev, mmio_regs)) == NULL) {
			goto bail7;
		}

		/* Register network device */
		ret = register_netdev(netdev);
		if (ret) {
			printk(KERN_ERR PFX "Unable to register netdev, ret = %d\n", ret);
			nes_netdev_destroy(netdev);
			goto bail7;
		}

		nes_print_macaddr(netdev);
		/* create a CM core for this netdev */
		nesvnic = netdev_priv(netdev);

		nesdev->netdev_count++;
		nesdev->nesadapter->netdev_count++;


	printk(KERN_ERR PFX "%s: NetEffect RNIC driver successfully loaded.\n",
			pci_name(pcidev));
	return 0;

	bail7:
	printk(KERN_ERR PFX "bail7\n");
	while (nesdev->netdev_count > 0) {
		nesdev->netdev_count--;
		nesdev->nesadapter->netdev_count--;

		unregister_netdev(nesdev->netdev[nesdev->netdev_count]);
		nes_netdev_destroy(nesdev->netdev[nesdev->netdev_count]);
	}

	nes_debug(NES_DBG_INIT, "netdev_count=%d, nesadapter->netdev_count=%d\n",
			nesdev->netdev_count, nesdev->nesadapter->netdev_count);

	nes_notifiers_registered--;
	if (nes_notifiers_registered == 0) {
		unregister_netevent_notifier(&nes_net_notifier);
		unregister_inetaddr_notifier(&nes_inetaddr_notifier);
	}

	list_del(&nesdev->list);
	nes_destroy_cqp(nesdev);

	bail65:
	printk(KERN_ERR PFX "bail65\n");
	free_irq(pcidev->irq, nesdev);
	if (nesdev->msi_enabled) {
		pci_disable_msi(pcidev);
	}
	bail6:
	printk(KERN_ERR PFX "bail6\n");
	tasklet_kill(&nesdev->dpc_tasklet);
	/* Deallocate the Adapter Structure */
	nes_destroy_adapter(nesdev->nesadapter);

	bail5:
	printk(KERN_ERR PFX "bail5\n");
	iounmap(nesdev->regs);

	bail3:
	printk(KERN_ERR PFX "bail3\n");
	kfree(nesdev);

	bail2:
	pci_release_regions(pcidev);

	bail1:
	pci_disable_device(pcidev);

	bail0:
	return ret;
}


/**
 * nes_remove - unload from kernel
 */
static void __devexit nes_remove(struct pci_dev *pcidev)
{
	struct nes_device *nesdev = pci_get_drvdata(pcidev);
	struct net_device *netdev;
	int netdev_index = 0;

		if (nesdev->netdev_count) {
			netdev = nesdev->netdev[netdev_index];
			if (netdev) {
				netif_stop_queue(netdev);
				unregister_netdev(netdev);
				nes_netdev_destroy(netdev);

				nesdev->netdev[netdev_index] = NULL;
				nesdev->netdev_count--;
				nesdev->nesadapter->netdev_count--;
			}
		}

	nes_notifiers_registered--;
	if (nes_notifiers_registered == 0) {
		unregister_netevent_notifier(&nes_net_notifier);
		unregister_inetaddr_notifier(&nes_inetaddr_notifier);
	}

	list_del(&nesdev->list);
	nes_destroy_cqp(nesdev);

	free_irq(pcidev->irq, nesdev);
	tasklet_kill(&nesdev->dpc_tasklet);

	/* Deallocate the Adapter Structure */
	nes_destroy_adapter(nesdev->nesadapter);

	if (nesdev->msi_enabled) {
		pci_disable_msi(pcidev);
	}

	iounmap(nesdev->regs);
	kfree(nesdev);

	/* nes_debug(NES_DBG_SHUTDOWN, "calling pci_release_regions.\n"); */
	pci_release_regions(pcidev);
	pci_disable_device(pcidev);
	pci_set_drvdata(pcidev, NULL);
}


static struct pci_driver nes_pci_driver = {
	.name = DRV_NAME,
	.id_table = nes_pci_table,
	.probe = nes_probe,
	.remove = __devexit_p(nes_remove),
};

static ssize_t nes_show_adapter(struct device_driver *ddp, char *buf)
{
	unsigned int  devfn = 0xffffffff;
	unsigned char bus_number = 0xff;
	unsigned int  i = 0;
	struct nes_device *nesdev;

	list_for_each_entry(nesdev, &nes_dev_list, list) {
		if (i == ee_flsh_adapter) {
			devfn = nesdev->pcidev->devfn;
			bus_number = nesdev->pcidev->bus->number;
			break;
		}
		i++;
	}

	return snprintf(buf, PAGE_SIZE, "%x:%x\n", bus_number, devfn);
}

static ssize_t nes_store_adapter(struct device_driver *ddp,
	const char *buf, size_t count)
{
	char *p = (char *)buf;

	ee_flsh_adapter = simple_strtoul(p, &p, 10);
	return strnlen(buf, count);
}

static ssize_t nes_show_ee_cmd(struct device_driver *ddp, char *buf)
{
	u32 eeprom_cmd = 0xdead;
	u32 i = 0;
	struct nes_device *nesdev;

	list_for_each_entry(nesdev, &nes_dev_list, list) {
		if (i == ee_flsh_adapter) {
			eeprom_cmd = nes_read32(nesdev->regs + NES_EEPROM_COMMAND);
			break;
		}
		i++;
	}
	return snprintf(buf, PAGE_SIZE, "0x%x\n", eeprom_cmd);
}

static ssize_t nes_store_ee_cmd(struct device_driver *ddp,
	const char *buf, size_t count)
{
	char *p = (char *)buf;
	u32 val;
	u32 i = 0;
	struct nes_device *nesdev;

	if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
		val = simple_strtoul(p, &p, 16);
		list_for_each_entry(nesdev, &nes_dev_list, list) {
			if (i == ee_flsh_adapter) {
				nes_write32(nesdev->regs + NES_EEPROM_COMMAND, val);
				break;
			}
			i++;
		}
	}
	return strnlen(buf, count);
}

static ssize_t nes_show_ee_data(struct device_driver *ddp, char *buf)
{
	u32 eeprom_data = 0xdead;
	u32 i = 0;
	struct nes_device *nesdev;

	list_for_each_entry(nesdev, &nes_dev_list, list) {
		if (i == ee_flsh_adapter) {
			eeprom_data = nes_read32(nesdev->regs + NES_EEPROM_DATA);
			break;
		}
		i++;
	}

	return  snprintf(buf, PAGE_SIZE, "0x%x\n", eeprom_data);
}

static ssize_t nes_store_ee_data(struct device_driver *ddp,
	const char *buf, size_t count)
{
	char *p = (char *)buf;
	u32 val;
	u32 i = 0;
	struct nes_device *nesdev;

	if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
		val = simple_strtoul(p, &p, 16);
		list_for_each_entry(nesdev, &nes_dev_list, list) {
			if (i == ee_flsh_adapter) {
				nes_write32(nesdev->regs + NES_EEPROM_DATA, val);
				break;
			}
			i++;
		}
	}
	return strnlen(buf, count);
}

static ssize_t nes_show_flash_cmd(struct device_driver *ddp, char *buf)
{
	u32 flash_cmd = 0xdead;
	u32 i = 0;
	struct nes_device *nesdev;

	list_for_each_entry(nesdev, &nes_dev_list, list) {
		if (i == ee_flsh_adapter) {
			flash_cmd = nes_read32(nesdev->regs + NES_FLASH_COMMAND);
			break;
		}
		i++;
	}

	return  snprintf(buf, PAGE_SIZE, "0x%x\n", flash_cmd);
}

static ssize_t nes_store_flash_cmd(struct device_driver *ddp,
	const char *buf, size_t count)
{
	char *p = (char *)buf;
	u32 val;
	u32 i = 0;
	struct nes_device *nesdev;

	if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
		val = simple_strtoul(p, &p, 16);
		list_for_each_entry(nesdev, &nes_dev_list, list) {
			if (i == ee_flsh_adapter) {
				nes_write32(nesdev->regs + NES_FLASH_COMMAND, val);
				break;
			}
			i++;
		}
	}
	return strnlen(buf, count);
}

static ssize_t nes_show_flash_data(struct device_driver *ddp, char *buf)
{
	u32 flash_data = 0xdead;
	u32 i = 0;
	struct nes_device *nesdev;

	list_for_each_entry(nesdev, &nes_dev_list, list) {
		if (i == ee_flsh_adapter) {
			flash_data = nes_read32(nesdev->regs + NES_FLASH_DATA);
			break;
		}
		i++;
	}

	return  snprintf(buf, PAGE_SIZE, "0x%x\n", flash_data);
}

static ssize_t nes_store_flash_data(struct device_driver *ddp,
	const char *buf, size_t count)
{
	char *p = (char *)buf;
	u32 val;
	u32 i = 0;
	struct nes_device *nesdev;

	if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
		val = simple_strtoul(p, &p, 16);
		list_for_each_entry(nesdev, &nes_dev_list, list) {
			if (i == ee_flsh_adapter) {
				nes_write32(nesdev->regs + NES_FLASH_DATA, val);
				break;
			}
			i++;
		}
	}
	return strnlen(buf, count);
}

static ssize_t nes_show_nonidx_addr(struct device_driver *ddp, char *buf)
{
	return  snprintf(buf, PAGE_SIZE, "0x%x\n", sysfs_nonidx_addr);
}

static ssize_t nes_store_nonidx_addr(struct device_driver *ddp,
	const char *buf, size_t count)
{
	char *p = (char *)buf;

	if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X')
		sysfs_nonidx_addr = simple_strtoul(p, &p, 16);

	return strnlen(buf, count);
}

static ssize_t nes_show_nonidx_data(struct device_driver *ddp, char *buf)
{
	u32 nonidx_data = 0xdead;
	u32 i = 0;
	struct nes_device *nesdev;

	list_for_each_entry(nesdev, &nes_dev_list, list) {
		if (i == ee_flsh_adapter) {
			nonidx_data = nes_read32(nesdev->regs + sysfs_nonidx_addr);
			break;
		}
		i++;
	}

	return  snprintf(buf, PAGE_SIZE, "0x%x\n", nonidx_data);
}

static ssize_t nes_store_nonidx_data(struct device_driver *ddp,
	const char *buf, size_t count)
{
	char *p = (char *)buf;
	u32 val;
	u32 i = 0;
	struct nes_device *nesdev;

	if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
		val = simple_strtoul(p, &p, 16);
		list_for_each_entry(nesdev, &nes_dev_list, list) {
			if (i == ee_flsh_adapter) {
				nes_write32(nesdev->regs + sysfs_nonidx_addr, val);
				break;
			}
			i++;
		}
	}
	return strnlen(buf, count);
}

static ssize_t nes_show_idx_addr(struct device_driver *ddp, char *buf)
{
	return  snprintf(buf, PAGE_SIZE, "0x%x\n", sysfs_idx_addr);
}

static ssize_t nes_store_idx_addr(struct device_driver *ddp,
	const char *buf, size_t count)
{
	char *p = (char *)buf;

	if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X')
		sysfs_idx_addr = simple_strtoul(p, &p, 16);

	return strnlen(buf, count);
}

static ssize_t nes_show_idx_data(struct device_driver *ddp, char *buf)
{
	u32 idx_data = 0xdead;
	u32 i = 0;
	struct nes_device *nesdev;

	list_for_each_entry(nesdev, &nes_dev_list, list) {
		if (i == ee_flsh_adapter) {
			idx_data = nes_read_indexed(nesdev, sysfs_idx_addr);
			break;
		}
		i++;
	}

	return  snprintf(buf, PAGE_SIZE, "0x%x\n", idx_data);
}

static ssize_t nes_store_idx_data(struct device_driver *ddp,
	const char *buf, size_t count)
{
	char *p = (char *)buf;
	u32 val;
	u32 i = 0;
	struct nes_device *nesdev;

	if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
		val = simple_strtoul(p, &p, 16);
		list_for_each_entry(nesdev, &nes_dev_list, list) {
			if (i == ee_flsh_adapter) {
				nes_write_indexed(nesdev, sysfs_idx_addr, val);
				break;
			}
			i++;
		}
	}
	return strnlen(buf, count);
}


/**
 * nes_show_wqm_quanta
 */
static ssize_t nes_show_wqm_quanta(struct device_driver *ddp, char *buf)
{
	u32 wqm_quanta_value = 0xdead;
	u32 i = 0;
	struct nes_device *nesdev;

	list_for_each_entry(nesdev, &nes_dev_list, list) {
		if (i == ee_flsh_adapter) {
			wqm_quanta_value = nesdev->nesadapter->wqm_quanta;
			break;
		}
		i++;
	}

	return  snprintf(buf, PAGE_SIZE, "0x%X\n", wqm_quanta);
}


/**
 * nes_store_wqm_quanta
 */
static ssize_t nes_store_wqm_quanta(struct device_driver *ddp,
					const char *buf, size_t count)
{
	unsigned long wqm_quanta_value;
	u32 wqm_config1;
	u32 i = 0;
	struct nes_device *nesdev;

	strict_strtoul(buf, 0, &wqm_quanta_value);
	list_for_each_entry(nesdev, &nes_dev_list, list) {
		if (i == ee_flsh_adapter) {
			nesdev->nesadapter->wqm_quanta = wqm_quanta_value;
			wqm_config1 = nes_read_indexed(nesdev,
						NES_IDX_WQM_CONFIG1);
			nes_write_indexed(nesdev, NES_IDX_WQM_CONFIG1,
					((wqm_quanta_value << 1) |
					(wqm_config1 & 0x00000001)));
			break;
		}
		i++;
	}
	return strnlen(buf, count);
}

static DRIVER_ATTR(adapter, S_IRUSR | S_IWUSR,
		   nes_show_adapter, nes_store_adapter);
static DRIVER_ATTR(eeprom_cmd, S_IRUSR | S_IWUSR,
		   nes_show_ee_cmd, nes_store_ee_cmd);
static DRIVER_ATTR(eeprom_data, S_IRUSR | S_IWUSR,
		   nes_show_ee_data, nes_store_ee_data);
static DRIVER_ATTR(flash_cmd, S_IRUSR | S_IWUSR,
		   nes_show_flash_cmd, nes_store_flash_cmd);
static DRIVER_ATTR(flash_data, S_IRUSR | S_IWUSR,
		   nes_show_flash_data, nes_store_flash_data);
static DRIVER_ATTR(nonidx_addr, S_IRUSR | S_IWUSR,
		   nes_show_nonidx_addr, nes_store_nonidx_addr);
static DRIVER_ATTR(nonidx_data, S_IRUSR | S_IWUSR,
		   nes_show_nonidx_data, nes_store_nonidx_data);
static DRIVER_ATTR(idx_addr, S_IRUSR | S_IWUSR,
		   nes_show_idx_addr, nes_store_idx_addr);
static DRIVER_ATTR(idx_data, S_IRUSR | S_IWUSR,
		   nes_show_idx_data, nes_store_idx_data);
static DRIVER_ATTR(wqm_quanta, S_IRUSR | S_IWUSR,
		   nes_show_wqm_quanta, nes_store_wqm_quanta);

static int nes_create_driver_sysfs(struct pci_driver *drv)
{
	int error;
	error  = driver_create_file(&drv->driver, &driver_attr_adapter);
	error |= driver_create_file(&drv->driver, &driver_attr_eeprom_cmd);
	error |= driver_create_file(&drv->driver, &driver_attr_eeprom_data);
	error |= driver_create_file(&drv->driver, &driver_attr_flash_cmd);
	error |= driver_create_file(&drv->driver, &driver_attr_flash_data);
	error |= driver_create_file(&drv->driver, &driver_attr_nonidx_addr);
	error |= driver_create_file(&drv->driver, &driver_attr_nonidx_data);
	error |= driver_create_file(&drv->driver, &driver_attr_idx_addr);
	error |= driver_create_file(&drv->driver, &driver_attr_idx_data);
	error |= driver_create_file(&drv->driver, &driver_attr_wqm_quanta);
	return error;
}

static void nes_remove_driver_sysfs(struct pci_driver *drv)
{
	driver_remove_file(&drv->driver, &driver_attr_adapter);
	driver_remove_file(&drv->driver, &driver_attr_eeprom_cmd);
	driver_remove_file(&drv->driver, &driver_attr_eeprom_data);
	driver_remove_file(&drv->driver, &driver_attr_flash_cmd);
	driver_remove_file(&drv->driver, &driver_attr_flash_data);
	driver_remove_file(&drv->driver, &driver_attr_nonidx_addr);
	driver_remove_file(&drv->driver, &driver_attr_nonidx_data);
	driver_remove_file(&drv->driver, &driver_attr_idx_addr);
	driver_remove_file(&drv->driver, &driver_attr_idx_data);
	driver_remove_file(&drv->driver, &driver_attr_wqm_quanta);
}

/**
 * nes_init_module - module initialization entry point
 */
static int __init nes_init_module(void)
{
	int retval;
	int retval1;

	retval = nes_cm_start();
	if (retval) {
		printk(KERN_ERR PFX "Unable to start NetEffect iWARP CM.\n");
		return retval;
	}
	retval = pci_register_driver(&nes_pci_driver);
	if (retval >= 0) {
		retval1 = nes_create_driver_sysfs(&nes_pci_driver);
		if (retval1 < 0)
			printk(KERN_ERR PFX "Unable to create NetEffect sys files.\n");
	}
	return retval;
}


/**
 * nes_exit_module - module unload entry point
 */
static void __exit nes_exit_module(void)
{
	nes_cm_stop();
	nes_remove_driver_sysfs(&nes_pci_driver);

	pci_unregister_driver(&nes_pci_driver);
}


module_init(nes_init_module);
module_exit(nes_exit_module);