summaryrefslogtreecommitdiff
path: root/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
blob: c067b7888ac4fac6c174d3063406d087dcd530bb (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
/*
 * This file is part of the Chelsio T4 Ethernet driver for Linux.
 *
 * Copyright (c) 2003-2014 Chelsio Communications, 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.
 */

#ifndef __CXGB4_H__
#define __CXGB4_H__

#include "t4_hw.h"

#include <linux/bitops.h>
#include <linux/cache.h>
#include <linux/interrupt.h>
#include <linux/list.h>
#include <linux/netdevice.h>
#include <linux/pci.h>
#include <linux/spinlock.h>
#include <linux/timer.h>
#include <linux/vmalloc.h>
#include <asm/io.h>
#include "cxgb4_uld.h"

#define T4FW_VERSION_MAJOR 0x01
#define T4FW_VERSION_MINOR 0x0B
#define T4FW_VERSION_MICRO 0x1B
#define T4FW_VERSION_BUILD 0x00

#define T5FW_VERSION_MAJOR 0x01
#define T5FW_VERSION_MINOR 0x0B
#define T5FW_VERSION_MICRO 0x1B
#define T5FW_VERSION_BUILD 0x00

#define CH_WARN(adap, fmt, ...) dev_warn(adap->pdev_dev, fmt, ## __VA_ARGS__)

enum {
	MAX_NPORTS = 4,     /* max # of ports */
	SERNUM_LEN = 24,    /* Serial # length */
	EC_LEN     = 16,    /* E/C length */
	ID_LEN     = 16,    /* ID length */
	PN_LEN     = 16,    /* Part Number length */
};

enum {
	MEM_EDC0,
	MEM_EDC1,
	MEM_MC,
	MEM_MC0 = MEM_MC,
	MEM_MC1
};

enum {
	MEMWIN0_APERTURE = 2048,
	MEMWIN0_BASE     = 0x1b800,
	MEMWIN1_APERTURE = 32768,
	MEMWIN1_BASE     = 0x28000,
	MEMWIN1_BASE_T5  = 0x52000,
	MEMWIN2_APERTURE = 65536,
	MEMWIN2_BASE     = 0x30000,
	MEMWIN2_APERTURE_T5 = 131072,
	MEMWIN2_BASE_T5  = 0x60000,
};

enum dev_master {
	MASTER_CANT,
	MASTER_MAY,
	MASTER_MUST
};

enum dev_state {
	DEV_STATE_UNINIT,
	DEV_STATE_INIT,
	DEV_STATE_ERR
};

enum {
	PAUSE_RX      = 1 << 0,
	PAUSE_TX      = 1 << 1,
	PAUSE_AUTONEG = 1 << 2
};

struct port_stats {
	u64 tx_octets;            /* total # of octets in good frames */
	u64 tx_frames;            /* all good frames */
	u64 tx_bcast_frames;      /* all broadcast frames */
	u64 tx_mcast_frames;      /* all multicast frames */
	u64 tx_ucast_frames;      /* all unicast frames */
	u64 tx_error_frames;      /* all error frames */

	u64 tx_frames_64;         /* # of Tx frames in a particular range */
	u64 tx_frames_65_127;
	u64 tx_frames_128_255;
	u64 tx_frames_256_511;
	u64 tx_frames_512_1023;
	u64 tx_frames_1024_1518;
	u64 tx_frames_1519_max;

	u64 tx_drop;              /* # of dropped Tx frames */
	u64 tx_pause;             /* # of transmitted pause frames */
	u64 tx_ppp0;              /* # of transmitted PPP prio 0 frames */
	u64 tx_ppp1;              /* # of transmitted PPP prio 1 frames */
	u64 tx_ppp2;              /* # of transmitted PPP prio 2 frames */
	u64 tx_ppp3;              /* # of transmitted PPP prio 3 frames */
	u64 tx_ppp4;              /* # of transmitted PPP prio 4 frames */
	u64 tx_ppp5;              /* # of transmitted PPP prio 5 frames */
	u64 tx_ppp6;              /* # of transmitted PPP prio 6 frames */
	u64 tx_ppp7;              /* # of transmitted PPP prio 7 frames */

	u64 rx_octets;            /* total # of octets in good frames */
	u64 rx_frames;            /* all good frames */
	u64 rx_bcast_frames;      /* all broadcast frames */
	u64 rx_mcast_frames;      /* all multicast frames */
	u64 rx_ucast_frames;      /* all unicast frames */
	u64 rx_too_long;          /* # of frames exceeding MTU */
	u64 rx_jabber;            /* # of jabber frames */
	u64 rx_fcs_err;           /* # of received frames with bad FCS */
	u64 rx_len_err;           /* # of received frames with length error */
	u64 rx_symbol_err;        /* symbol errors */
	u64 rx_runt;              /* # of short frames */

	u64 rx_frames_64;         /* # of Rx frames in a particular range */
	u64 rx_frames_65_127;
	u64 rx_frames_128_255;
	u64 rx_frames_256_511;
	u64 rx_frames_512_1023;
	u64 rx_frames_1024_1518;
	u64 rx_frames_1519_max;

	u64 rx_pause;             /* # of received pause frames */
	u64 rx_ppp0;              /* # of received PPP prio 0 frames */
	u64 rx_ppp1;              /* # of received PPP prio 1 frames */
	u64 rx_ppp2;              /* # of received PPP prio 2 frames */
	u64 rx_ppp3;              /* # of received PPP prio 3 frames */
	u64 rx_ppp4;              /* # of received PPP prio 4 frames */
	u64 rx_ppp5;              /* # of received PPP prio 5 frames */
	u64 rx_ppp6;              /* # of received PPP prio 6 frames */
	u64 rx_ppp7;              /* # of received PPP prio 7 frames */

	u64 rx_ovflow0;           /* drops due to buffer-group 0 overflows */
	u64 rx_ovflow1;           /* drops due to buffer-group 1 overflows */
	u64 rx_ovflow2;           /* drops due to buffer-group 2 overflows */
	u64 rx_ovflow3;           /* drops due to buffer-group 3 overflows */
	u64 rx_trunc0;            /* buffer-group 0 truncated packets */
	u64 rx_trunc1;            /* buffer-group 1 truncated packets */
	u64 rx_trunc2;            /* buffer-group 2 truncated packets */
	u64 rx_trunc3;            /* buffer-group 3 truncated packets */
};

struct lb_port_stats {
	u64 octets;
	u64 frames;
	u64 bcast_frames;
	u64 mcast_frames;
	u64 ucast_frames;
	u64 error_frames;

	u64 frames_64;
	u64 frames_65_127;
	u64 frames_128_255;
	u64 frames_256_511;
	u64 frames_512_1023;
	u64 frames_1024_1518;
	u64 frames_1519_max;

	u64 drop;

	u64 ovflow0;
	u64 ovflow1;
	u64 ovflow2;
	u64 ovflow3;
	u64 trunc0;
	u64 trunc1;
	u64 trunc2;
	u64 trunc3;
};

struct tp_tcp_stats {
	u32 tcpOutRsts;
	u64 tcpInSegs;
	u64 tcpOutSegs;
	u64 tcpRetransSegs;
};

struct tp_err_stats {
	u32 macInErrs[4];
	u32 hdrInErrs[4];
	u32 tcpInErrs[4];
	u32 tnlCongDrops[4];
	u32 ofldChanDrops[4];
	u32 tnlTxDrops[4];
	u32 ofldVlanDrops[4];
	u32 tcp6InErrs[4];
	u32 ofldNoNeigh;
	u32 ofldCongDefer;
};

struct tp_params {
	unsigned int ntxchan;        /* # of Tx channels */
	unsigned int tre;            /* log2 of core clocks per TP tick */
	unsigned short tx_modq_map;  /* TX modulation scheduler queue to */
				     /* channel map */

	uint32_t dack_re;            /* DACK timer resolution */
	unsigned short tx_modq[NCHAN];	/* channel to modulation queue map */

	u32 vlan_pri_map;               /* cached TP_VLAN_PRI_MAP */
	u32 ingress_config;             /* cached TP_INGRESS_CONFIG */

	/* TP_VLAN_PRI_MAP Compressed Filter Tuple field offsets.  This is a
	 * subset of the set of fields which may be present in the Compressed
	 * Filter Tuple portion of filters and TCP TCB connections.  The
	 * fields which are present are controlled by the TP_VLAN_PRI_MAP.
	 * Since a variable number of fields may or may not be present, their
	 * shifted field positions within the Compressed Filter Tuple may
	 * vary, or not even be present if the field isn't selected in
	 * TP_VLAN_PRI_MAP.  Since some of these fields are needed in various
	 * places we store their offsets here, or a -1 if the field isn't
	 * present.
	 */
	int vlan_shift;
	int vnic_shift;
	int port_shift;
	int protocol_shift;
};

struct vpd_params {
	unsigned int cclk;
	u8 ec[EC_LEN + 1];
	u8 sn[SERNUM_LEN + 1];
	u8 id[ID_LEN + 1];
	u8 pn[PN_LEN + 1];
};

struct pci_params {
	unsigned char speed;
	unsigned char width;
};

#define CHELSIO_CHIP_CODE(version, revision) (((version) << 4) | (revision))
#define CHELSIO_CHIP_FPGA          0x100
#define CHELSIO_CHIP_VERSION(code) (((code) >> 4) & 0xf)
#define CHELSIO_CHIP_RELEASE(code) ((code) & 0xf)

#define CHELSIO_T4		0x4
#define CHELSIO_T5		0x5

enum chip_type {
	T4_A1 = CHELSIO_CHIP_CODE(CHELSIO_T4, 1),
	T4_A2 = CHELSIO_CHIP_CODE(CHELSIO_T4, 2),
	T4_FIRST_REV	= T4_A1,
	T4_LAST_REV	= T4_A2,

	T5_A0 = CHELSIO_CHIP_CODE(CHELSIO_T5, 0),
	T5_A1 = CHELSIO_CHIP_CODE(CHELSIO_T5, 1),
	T5_FIRST_REV	= T5_A0,
	T5_LAST_REV	= T5_A1,
};

struct adapter_params {
	struct tp_params  tp;
	struct vpd_params vpd;
	struct pci_params pci;

	unsigned int sf_size;             /* serial flash size in bytes */
	unsigned int sf_nsec;             /* # of flash sectors */
	unsigned int sf_fw_start;         /* start of FW image in flash */

	unsigned int fw_vers;
	unsigned int tp_vers;
	u8 api_vers[7];

	unsigned short mtus[NMTUS];
	unsigned short a_wnd[NCCTRL_WIN];
	unsigned short b_wnd[NCCTRL_WIN];

	unsigned char nports;             /* # of ethernet ports */
	unsigned char portvec;
	enum chip_type chip;               /* chip code */
	unsigned char offload;

	unsigned char bypass;

	unsigned int ofldq_wr_cred;
	bool ulptx_memwrite_dsgl;          /* use of T5 DSGL allowed */

	unsigned int max_ordird_qp;       /* Max read depth per RDMA QP */
	unsigned int max_ird_adapter;     /* Max read depth per adapter */
};

#include "t4fw_api.h"

#define FW_VERSION(chip) ( \
		FW_HDR_FW_VER_MAJOR_GET(chip##FW_VERSION_MAJOR) | \
		FW_HDR_FW_VER_MINOR_GET(chip##FW_VERSION_MINOR) | \
		FW_HDR_FW_VER_MICRO_GET(chip##FW_VERSION_MICRO) | \
		FW_HDR_FW_VER_BUILD_GET(chip##FW_VERSION_BUILD))
#define FW_INTFVER(chip, intf) (FW_HDR_INTFVER_##intf)

struct fw_info {
	u8 chip;
	char *fs_name;
	char *fw_mod_name;
	struct fw_hdr fw_hdr;
};


struct trace_params {
	u32 data[TRACE_LEN / 4];
	u32 mask[TRACE_LEN / 4];
	unsigned short snap_len;
	unsigned short min_len;
	unsigned char skip_ofst;
	unsigned char skip_len;
	unsigned char invert;
	unsigned char port;
};

struct link_config {
	unsigned short supported;        /* link capabilities */
	unsigned short advertising;      /* advertised capabilities */
	unsigned short requested_speed;  /* speed user has requested */
	unsigned short speed;            /* actual link speed */
	unsigned char  requested_fc;     /* flow control user has requested */
	unsigned char  fc;               /* actual link flow control */
	unsigned char  autoneg;          /* autonegotiating? */
	unsigned char  link_ok;          /* link up? */
};

#define FW_LEN16(fw_struct) FW_CMD_LEN16(sizeof(fw_struct) / 16)

enum {
	MAX_ETH_QSETS = 32,           /* # of Ethernet Tx/Rx queue sets */
	MAX_OFLD_QSETS = 16,          /* # of offload Tx/Rx queue sets */
	MAX_CTRL_QUEUES = NCHAN,      /* # of control Tx queues */
	MAX_RDMA_QUEUES = NCHAN,      /* # of streaming RDMA Rx queues */
	MAX_RDMA_CIQS = NCHAN,        /* # of  RDMA concentrator IQs */
	MAX_ISCSI_QUEUES = NCHAN,     /* # of streaming iSCSI Rx queues */
};

enum {
	INGQ_EXTRAS = 2,        /* firmware event queue and */
				/*   forwarded interrupts */
	MAX_EGRQ = MAX_ETH_QSETS*2 + MAX_OFLD_QSETS*2
		   + MAX_CTRL_QUEUES + MAX_RDMA_QUEUES + MAX_ISCSI_QUEUES,
	MAX_INGQ = MAX_ETH_QSETS + MAX_OFLD_QSETS + MAX_RDMA_QUEUES
		   + MAX_RDMA_CIQS + MAX_ISCSI_QUEUES + INGQ_EXTRAS,
};

struct adapter;
struct sge_rspq;

#include "cxgb4_dcb.h"

struct port_info {
	struct adapter *adapter;
	u16    viid;
	s16    xact_addr_filt;        /* index of exact MAC address filter */
	u16    rss_size;              /* size of VI's RSS table slice */
	s8     mdio_addr;
	u8     port_type;
	u8     mod_type;
	u8     port_id;
	u8     tx_chan;
	u8     lport;                 /* associated offload logical port */
	u8     nqsets;                /* # of qsets */
	u8     first_qset;            /* index of first qset */
	u8     rss_mode;
	struct link_config link_cfg;
	u16   *rss;
#ifdef CONFIG_CHELSIO_T4_DCB
	struct port_dcb_info dcb;     /* Data Center Bridging support */
#endif
};

struct dentry;
struct work_struct;

enum {                                 /* adapter flags */
	FULL_INIT_DONE     = (1 << 0),
	DEV_ENABLED        = (1 << 1),
	USING_MSI          = (1 << 2),
	USING_MSIX         = (1 << 3),
	FW_OK              = (1 << 4),
	RSS_TNLALLLOOKUP   = (1 << 5),
	USING_SOFT_PARAMS  = (1 << 6),
	MASTER_PF          = (1 << 7),
	FW_OFLD_CONN       = (1 << 9),
};

struct rx_sw_desc;

struct sge_fl {                     /* SGE free-buffer queue state */
	unsigned int avail;         /* # of available Rx buffers */
	unsigned int pend_cred;     /* new buffers since last FL DB ring */
	unsigned int cidx;          /* consumer index */
	unsigned int pidx;          /* producer index */
	unsigned long alloc_failed; /* # of times buffer allocation failed */
	unsigned long large_alloc_failed;
	unsigned long starving;
	/* RO fields */
	unsigned int cntxt_id;      /* SGE context id for the free list */
	unsigned int size;          /* capacity of free list */
	struct rx_sw_desc *sdesc;   /* address of SW Rx descriptor ring */
	__be64 *desc;               /* address of HW Rx descriptor ring */
	dma_addr_t addr;            /* bus address of HW ring start */
};

/* A packet gather list */
struct pkt_gl {
	struct page_frag frags[MAX_SKB_FRAGS];
	void *va;                         /* virtual address of first byte */
	unsigned int nfrags;              /* # of fragments */
	unsigned int tot_len;             /* total length of fragments */
};

typedef int (*rspq_handler_t)(struct sge_rspq *q, const __be64 *rsp,
			      const struct pkt_gl *gl);

struct sge_rspq {                   /* state for an SGE response queue */
	struct napi_struct napi;
	const __be64 *cur_desc;     /* current descriptor in queue */
	unsigned int cidx;          /* consumer index */
	u8 gen;                     /* current generation bit */
	u8 intr_params;             /* interrupt holdoff parameters */
	u8 next_intr_params;        /* holdoff params for next interrupt */
	u8 pktcnt_idx;              /* interrupt packet threshold */
	u8 uld;                     /* ULD handling this queue */
	u8 idx;                     /* queue index within its group */
	int offset;                 /* offset into current Rx buffer */
	u16 cntxt_id;               /* SGE context id for the response q */
	u16 abs_id;                 /* absolute SGE id for the response q */
	__be64 *desc;               /* address of HW response ring */
	dma_addr_t phys_addr;       /* physical address of the ring */
	unsigned int iqe_len;       /* entry size */
	unsigned int size;          /* capacity of response queue */
	struct adapter *adap;
	struct net_device *netdev;  /* associated net device */
	rspq_handler_t handler;
};

struct sge_eth_stats {              /* Ethernet queue statistics */
	unsigned long pkts;         /* # of ethernet packets */
	unsigned long lro_pkts;     /* # of LRO super packets */
	unsigned long lro_merged;   /* # of wire packets merged by LRO */
	unsigned long rx_cso;       /* # of Rx checksum offloads */
	unsigned long vlan_ex;      /* # of Rx VLAN extractions */
	unsigned long rx_drops;     /* # of packets dropped due to no mem */
};

struct sge_eth_rxq {                /* SW Ethernet Rx queue */
	struct sge_rspq rspq;
	struct sge_fl fl;
	struct sge_eth_stats stats;
} ____cacheline_aligned_in_smp;

struct sge_ofld_stats {             /* offload queue statistics */
	unsigned long pkts;         /* # of packets */
	unsigned long imm;          /* # of immediate-data packets */
	unsigned long an;           /* # of asynchronous notifications */
	unsigned long nomem;        /* # of responses deferred due to no mem */
};

struct sge_ofld_rxq {               /* SW offload Rx queue */
	struct sge_rspq rspq;
	struct sge_fl fl;
	struct sge_ofld_stats stats;
} ____cacheline_aligned_in_smp;

struct tx_desc {
	__be64 flit[8];
};

struct tx_sw_desc;

struct sge_txq {
	unsigned int  in_use;       /* # of in-use Tx descriptors */
	unsigned int  size;         /* # of descriptors */
	unsigned int  cidx;         /* SW consumer index */
	unsigned int  pidx;         /* producer index */
	unsigned long stops;        /* # of times q has been stopped */
	unsigned long restarts;     /* # of queue restarts */
	unsigned int  cntxt_id;     /* SGE context id for the Tx q */
	struct tx_desc *desc;       /* address of HW Tx descriptor ring */
	struct tx_sw_desc *sdesc;   /* address of SW Tx descriptor ring */
	struct sge_qstat *stat;     /* queue status entry */
	dma_addr_t    phys_addr;    /* physical address of the ring */
	spinlock_t db_lock;
	int db_disabled;
	unsigned short db_pidx;
	unsigned short db_pidx_inc;
	u64 udb;
};

struct sge_eth_txq {                /* state for an SGE Ethernet Tx queue */
	struct sge_txq q;
	struct netdev_queue *txq;   /* associated netdev TX queue */
#ifdef CONFIG_CHELSIO_T4_DCB
	u8 dcb_prio;		    /* DCB Priority bound to queue */
#endif
	unsigned long tso;          /* # of TSO requests */
	unsigned long tx_cso;       /* # of Tx checksum offloads */
	unsigned long vlan_ins;     /* # of Tx VLAN insertions */
	unsigned long mapping_err;  /* # of I/O MMU packet mapping errors */
} ____cacheline_aligned_in_smp;

struct sge_ofld_txq {               /* state for an SGE offload Tx queue */
	struct sge_txq q;
	struct adapter *adap;
	struct sk_buff_head sendq;  /* list of backpressured packets */
	struct tasklet_struct qresume_tsk; /* restarts the queue */
	u8 full;                    /* the Tx ring is full */
	unsigned long mapping_err;  /* # of I/O MMU packet mapping errors */
} ____cacheline_aligned_in_smp;

struct sge_ctrl_txq {               /* state for an SGE control Tx queue */
	struct sge_txq q;
	struct adapter *adap;
	struct sk_buff_head sendq;  /* list of backpressured packets */
	struct tasklet_struct qresume_tsk; /* restarts the queue */
	u8 full;                    /* the Tx ring is full */
} ____cacheline_aligned_in_smp;

struct sge {
	struct sge_eth_txq ethtxq[MAX_ETH_QSETS];
	struct sge_ofld_txq ofldtxq[MAX_OFLD_QSETS];
	struct sge_ctrl_txq ctrlq[MAX_CTRL_QUEUES];

	struct sge_eth_rxq ethrxq[MAX_ETH_QSETS];
	struct sge_ofld_rxq ofldrxq[MAX_OFLD_QSETS];
	struct sge_ofld_rxq rdmarxq[MAX_RDMA_QUEUES];
	struct sge_ofld_rxq rdmaciq[MAX_RDMA_CIQS];
	struct sge_rspq fw_evtq ____cacheline_aligned_in_smp;

	struct sge_rspq intrq ____cacheline_aligned_in_smp;
	spinlock_t intrq_lock;

	u16 max_ethqsets;           /* # of available Ethernet queue sets */
	u16 ethqsets;               /* # of active Ethernet queue sets */
	u16 ethtxq_rover;           /* Tx queue to clean up next */
	u16 ofldqsets;              /* # of active offload queue sets */
	u16 rdmaqs;                 /* # of available RDMA Rx queues */
	u16 rdmaciqs;               /* # of available RDMA concentrator IQs */
	u16 ofld_rxq[MAX_OFLD_QSETS];
	u16 rdma_rxq[NCHAN];
	u16 rdma_ciq[NCHAN];
	u16 timer_val[SGE_NTIMERS];
	u8 counter_val[SGE_NCOUNTERS];
	u32 fl_pg_order;            /* large page allocation size */
	u32 stat_len;               /* length of status page at ring end */
	u32 pktshift;               /* padding between CPL & packet data */
	u32 fl_align;               /* response queue message alignment */
	u32 fl_starve_thres;        /* Free List starvation threshold */

	/* State variables for detecting an SGE Ingress DMA hang */
	unsigned int idma_1s_thresh;/* SGE same State Counter 1s threshold */
	unsigned int idma_stalled[2];/* SGE synthesized stalled timers in HZ */
	unsigned int idma_state[2]; /* SGE IDMA Hang detect state */
	unsigned int idma_qid[2];   /* SGE IDMA Hung Ingress Queue ID */

	unsigned int egr_start;
	unsigned int ingr_start;
	void *egr_map[MAX_EGRQ];    /* qid->queue egress queue map */
	struct sge_rspq *ingr_map[MAX_INGQ]; /* qid->queue ingress queue map */
	DECLARE_BITMAP(starving_fl, MAX_EGRQ);
	DECLARE_BITMAP(txq_maperr, MAX_EGRQ);
	struct timer_list rx_timer; /* refills starving FLs */
	struct timer_list tx_timer; /* checks Tx queues */
};

#define for_each_ethrxq(sge, i) for (i = 0; i < (sge)->ethqsets; i++)
#define for_each_ofldrxq(sge, i) for (i = 0; i < (sge)->ofldqsets; i++)
#define for_each_rdmarxq(sge, i) for (i = 0; i < (sge)->rdmaqs; i++)
#define for_each_rdmaciq(sge, i) for (i = 0; i < (sge)->rdmaciqs; i++)

struct l2t_data;

#ifdef CONFIG_PCI_IOV

/* T4 supports SRIOV on PF0-3 and T5 on PF0-7.  However, the Serial
 * Configuration initialization for T5 only has SR-IOV functionality enabled
 * on PF0-3 in order to simplify everything.
 */
#define NUM_OF_PF_WITH_SRIOV 4

#endif

struct adapter {
	void __iomem *regs;
	void __iomem *bar2;
	u32 t4_bar0;
	struct pci_dev *pdev;
	struct device *pdev_dev;
	unsigned int mbox;
	unsigned int fn;
	unsigned int flags;
	enum chip_type chip;

	int msg_enable;

	struct adapter_params params;
	struct cxgb4_virt_res vres;
	unsigned int swintr;

	unsigned int wol;

	struct {
		unsigned short vec;
		char desc[IFNAMSIZ + 10];
	} msix_info[MAX_INGQ + 1];

	struct sge sge;

	struct net_device *port[MAX_NPORTS];
	u8 chan_map[NCHAN];                   /* channel -> port map */

	u32 filter_mode;
	unsigned int l2t_start;
	unsigned int l2t_end;
	struct l2t_data *l2t;
	void *uld_handle[CXGB4_ULD_MAX];
	struct list_head list_node;
	struct list_head rcu_node;

	struct tid_info tids;
	void **tid_release_head;
	spinlock_t tid_release_lock;
	struct workqueue_struct *workq;
	struct work_struct tid_release_task;
	struct work_struct db_full_task;
	struct work_struct db_drop_task;
	bool tid_release_task_busy;

	struct dentry *debugfs_root;

	spinlock_t stats_lock;
	spinlock_t win0_lock ____cacheline_aligned_in_smp;
};

/* Defined bit width of user definable filter tuples
 */
#define ETHTYPE_BITWIDTH 16
#define FRAG_BITWIDTH 1
#define MACIDX_BITWIDTH 9
#define FCOE_BITWIDTH 1
#define IPORT_BITWIDTH 3
#define MATCHTYPE_BITWIDTH 3
#define PROTO_BITWIDTH 8
#define TOS_BITWIDTH 8
#define PF_BITWIDTH 8
#define VF_BITWIDTH 8
#define IVLAN_BITWIDTH 16
#define OVLAN_BITWIDTH 16

/* Filter matching rules.  These consist of a set of ingress packet field
 * (value, mask) tuples.  The associated ingress packet field matches the
 * tuple when ((field & mask) == value).  (Thus a wildcard "don't care" field
 * rule can be constructed by specifying a tuple of (0, 0).)  A filter rule
 * matches an ingress packet when all of the individual individual field
 * matching rules are true.
 *
 * Partial field masks are always valid, however, while it may be easy to
 * understand their meanings for some fields (e.g. IP address to match a
 * subnet), for others making sensible partial masks is less intuitive (e.g.
 * MPS match type) ...
 *
 * Most of the following data structures are modeled on T4 capabilities.
 * Drivers for earlier chips use the subsets which make sense for those chips.
 * We really need to come up with a hardware-independent mechanism to
 * represent hardware filter capabilities ...
 */
struct ch_filter_tuple {
	/* Compressed header matching field rules.  The TP_VLAN_PRI_MAP
	 * register selects which of these fields will participate in the
	 * filter match rules -- up to a maximum of 36 bits.  Because
	 * TP_VLAN_PRI_MAP is a global register, all filters must use the same
	 * set of fields.
	 */
	uint32_t ethtype:ETHTYPE_BITWIDTH;      /* Ethernet type */
	uint32_t frag:FRAG_BITWIDTH;            /* IP fragmentation header */
	uint32_t ivlan_vld:1;                   /* inner VLAN valid */
	uint32_t ovlan_vld:1;                   /* outer VLAN valid */
	uint32_t pfvf_vld:1;                    /* PF/VF valid */
	uint32_t macidx:MACIDX_BITWIDTH;        /* exact match MAC index */
	uint32_t fcoe:FCOE_BITWIDTH;            /* FCoE packet */
	uint32_t iport:IPORT_BITWIDTH;          /* ingress port */
	uint32_t matchtype:MATCHTYPE_BITWIDTH;  /* MPS match type */
	uint32_t proto:PROTO_BITWIDTH;          /* protocol type */
	uint32_t tos:TOS_BITWIDTH;              /* TOS/Traffic Type */
	uint32_t pf:PF_BITWIDTH;                /* PCI-E PF ID */
	uint32_t vf:VF_BITWIDTH;                /* PCI-E VF ID */
	uint32_t ivlan:IVLAN_BITWIDTH;          /* inner VLAN */
	uint32_t ovlan:OVLAN_BITWIDTH;          /* outer VLAN */

	/* Uncompressed header matching field rules.  These are always
	 * available for field rules.
	 */
	uint8_t lip[16];        /* local IP address (IPv4 in [3:0]) */
	uint8_t fip[16];        /* foreign IP address (IPv4 in [3:0]) */
	uint16_t lport;         /* local port */
	uint16_t fport;         /* foreign port */
};

/* A filter ioctl command.
 */
struct ch_filter_specification {
	/* Administrative fields for filter.
	 */
	uint32_t hitcnts:1;     /* count filter hits in TCB */
	uint32_t prio:1;        /* filter has priority over active/server */

	/* Fundamental filter typing.  This is the one element of filter
	 * matching that doesn't exist as a (value, mask) tuple.
	 */
	uint32_t type:1;        /* 0 => IPv4, 1 => IPv6 */

	/* Packet dispatch information.  Ingress packets which match the
	 * filter rules will be dropped, passed to the host or switched back
	 * out as egress packets.
	 */
	uint32_t action:2;      /* drop, pass, switch */

	uint32_t rpttid:1;      /* report TID in RSS hash field */

	uint32_t dirsteer:1;    /* 0 => RSS, 1 => steer to iq */
	uint32_t iq:10;         /* ingress queue */

	uint32_t maskhash:1;    /* dirsteer=0: store RSS hash in TCB */
	uint32_t dirsteerhash:1;/* dirsteer=1: 0 => TCB contains RSS hash */
				/*             1 => TCB contains IQ ID */

	/* Switch proxy/rewrite fields.  An ingress packet which matches a
	 * filter with "switch" set will be looped back out as an egress
	 * packet -- potentially with some Ethernet header rewriting.
	 */
	uint32_t eport:2;       /* egress port to switch packet out */
	uint32_t newdmac:1;     /* rewrite destination MAC address */
	uint32_t newsmac:1;     /* rewrite source MAC address */
	uint32_t newvlan:2;     /* rewrite VLAN Tag */
	uint8_t dmac[ETH_ALEN]; /* new destination MAC address */
	uint8_t smac[ETH_ALEN]; /* new source MAC address */
	uint16_t vlan;          /* VLAN Tag to insert */

	/* Filter rule value/mask pairs.
	 */
	struct ch_filter_tuple val;
	struct ch_filter_tuple mask;
};

enum {
	FILTER_PASS = 0,        /* default */
	FILTER_DROP,
	FILTER_SWITCH
};

enum {
	VLAN_NOCHANGE = 0,      /* default */
	VLAN_REMOVE,
	VLAN_INSERT,
	VLAN_REWRITE
};

static inline int is_t5(enum chip_type chip)
{
	return CHELSIO_CHIP_VERSION(chip) == CHELSIO_T5;
}

static inline int is_t4(enum chip_type chip)
{
	return CHELSIO_CHIP_VERSION(chip) == CHELSIO_T4;
}

static inline u32 t4_read_reg(struct adapter *adap, u32 reg_addr)
{
	return readl(adap->regs + reg_addr);
}

static inline void t4_write_reg(struct adapter *adap, u32 reg_addr, u32 val)
{
	writel(val, adap->regs + reg_addr);
}

#ifndef readq
static inline u64 readq(const volatile void __iomem *addr)
{
	return readl(addr) + ((u64)readl(addr + 4) << 32);
}

static inline void writeq(u64 val, volatile void __iomem *addr)
{
	writel(val, addr);
	writel(val >> 32, addr + 4);
}
#endif

static inline u64 t4_read_reg64(struct adapter *adap, u32 reg_addr)
{
	return readq(adap->regs + reg_addr);
}

static inline void t4_write_reg64(struct adapter *adap, u32 reg_addr, u64 val)
{
	writeq(val, adap->regs + reg_addr);
}

/**
 * netdev2pinfo - return the port_info structure associated with a net_device
 * @dev: the netdev
 *
 * Return the struct port_info associated with a net_device
 */
static inline struct port_info *netdev2pinfo(const struct net_device *dev)
{
	return netdev_priv(dev);
}

/**
 * adap2pinfo - return the port_info of a port
 * @adap: the adapter
 * @idx: the port index
 *
 * Return the port_info structure for the port of the given index.
 */
static inline struct port_info *adap2pinfo(struct adapter *adap, int idx)
{
	return netdev_priv(adap->port[idx]);
}

/**
 * netdev2adap - return the adapter structure associated with a net_device
 * @dev: the netdev
 *
 * Return the struct adapter associated with a net_device
 */
static inline struct adapter *netdev2adap(const struct net_device *dev)
{
	return netdev2pinfo(dev)->adapter;
}

void t4_os_portmod_changed(const struct adapter *adap, int port_id);
void t4_os_link_changed(struct adapter *adap, int port_id, int link_stat);

void *t4_alloc_mem(size_t size);

void t4_free_sge_resources(struct adapter *adap);
void t4_free_ofld_rxqs(struct adapter *adap, int n, struct sge_ofld_rxq *q);
irq_handler_t t4_intr_handler(struct adapter *adap);
netdev_tx_t t4_eth_xmit(struct sk_buff *skb, struct net_device *dev);
int t4_ethrx_handler(struct sge_rspq *q, const __be64 *rsp,
		     const struct pkt_gl *gl);
int t4_mgmt_tx(struct adapter *adap, struct sk_buff *skb);
int t4_ofld_send(struct adapter *adap, struct sk_buff *skb);
int t4_sge_alloc_rxq(struct adapter *adap, struct sge_rspq *iq, bool fwevtq,
		     struct net_device *dev, int intr_idx,
		     struct sge_fl *fl, rspq_handler_t hnd);
int t4_sge_alloc_eth_txq(struct adapter *adap, struct sge_eth_txq *txq,
			 struct net_device *dev, struct netdev_queue *netdevq,
			 unsigned int iqid);
int t4_sge_alloc_ctrl_txq(struct adapter *adap, struct sge_ctrl_txq *txq,
			  struct net_device *dev, unsigned int iqid,
			  unsigned int cmplqid);
int t4_sge_alloc_ofld_txq(struct adapter *adap, struct sge_ofld_txq *txq,
			  struct net_device *dev, unsigned int iqid);
irqreturn_t t4_sge_intr_msix(int irq, void *cookie);
int t4_sge_init(struct adapter *adap);
void t4_sge_start(struct adapter *adap);
void t4_sge_stop(struct adapter *adap);
extern int dbfifo_int_thresh;

#define for_each_port(adapter, iter) \
	for (iter = 0; iter < (adapter)->params.nports; ++iter)

static inline int is_bypass(struct adapter *adap)
{
	return adap->params.bypass;
}

static inline int is_bypass_device(int device)
{
	/* this should be set based upon device capabilities */
	switch (device) {
	case 0x440b:
	case 0x440c:
		return 1;
	default:
		return 0;
	}
}

static inline unsigned int core_ticks_per_usec(const struct adapter *adap)
{
	return adap->params.vpd.cclk / 1000;
}

static inline unsigned int us_to_core_ticks(const struct adapter *adap,
					    unsigned int us)
{
	return (us * adap->params.vpd.cclk) / 1000;
}

static inline unsigned int core_ticks_to_us(const struct adapter *adapter,
					    unsigned int ticks)
{
	/* add Core Clock / 2 to round ticks to nearest uS */
	return ((ticks * 1000 + adapter->params.vpd.cclk/2) /
		adapter->params.vpd.cclk);
}

void t4_set_reg_field(struct adapter *adap, unsigned int addr, u32 mask,
		      u32 val);

int t4_wr_mbox_meat(struct adapter *adap, int mbox, const void *cmd, int size,
		    void *rpl, bool sleep_ok);

static inline int t4_wr_mbox(struct adapter *adap, int mbox, const void *cmd,
			     int size, void *rpl)
{
	return t4_wr_mbox_meat(adap, mbox, cmd, size, rpl, true);
}

static inline int t4_wr_mbox_ns(struct adapter *adap, int mbox, const void *cmd,
				int size, void *rpl)
{
	return t4_wr_mbox_meat(adap, mbox, cmd, size, rpl, false);
}

void t4_write_indirect(struct adapter *adap, unsigned int addr_reg,
		       unsigned int data_reg, const u32 *vals,
		       unsigned int nregs, unsigned int start_idx);
void t4_read_indirect(struct adapter *adap, unsigned int addr_reg,
		      unsigned int data_reg, u32 *vals, unsigned int nregs,
		      unsigned int start_idx);
void t4_hw_pci_read_cfg4(struct adapter *adapter, int reg, u32 *val);

struct fw_filter_wr;

void t4_intr_enable(struct adapter *adapter);
void t4_intr_disable(struct adapter *adapter);
int t4_slow_intr_handler(struct adapter *adapter);

int t4_wait_dev_ready(struct adapter *adap);
int t4_link_start(struct adapter *adap, unsigned int mbox, unsigned int port,
		  struct link_config *lc);
int t4_restart_aneg(struct adapter *adap, unsigned int mbox, unsigned int port);

#define T4_MEMORY_WRITE	0
#define T4_MEMORY_READ	1
int t4_memory_rw(struct adapter *adap, int win, int mtype, u32 addr, u32 len,
		 __be32 *buf, int dir);
static inline int t4_memory_write(struct adapter *adap, int mtype, u32 addr,
				  u32 len, __be32 *buf)
{
	return t4_memory_rw(adap, 0, mtype, addr, len, buf, 0);
}

int t4_seeprom_wp(struct adapter *adapter, bool enable);
int get_vpd_params(struct adapter *adapter, struct vpd_params *p);
int t4_load_fw(struct adapter *adapter, const u8 *fw_data, unsigned int size);
unsigned int t4_flash_cfg_addr(struct adapter *adapter);
int t4_get_fw_version(struct adapter *adapter, u32 *vers);
int t4_get_tp_version(struct adapter *adapter, u32 *vers);
int t4_prep_fw(struct adapter *adap, struct fw_info *fw_info,
	       const u8 *fw_data, unsigned int fw_size,
	       struct fw_hdr *card_fw, enum dev_state state, int *reset);
int t4_prep_adapter(struct adapter *adapter);
int t4_init_tp_params(struct adapter *adap);
int t4_filter_field_shift(const struct adapter *adap, int filter_sel);
int t4_port_init(struct adapter *adap, int mbox, int pf, int vf);
void t4_fatal_err(struct adapter *adapter);
int t4_config_rss_range(struct adapter *adapter, int mbox, unsigned int viid,
			int start, int n, const u16 *rspq, unsigned int nrspq);
int t4_config_glbl_rss(struct adapter *adapter, int mbox, unsigned int mode,
		       unsigned int flags);
int t4_mc_read(struct adapter *adap, int idx, u32 addr, __be32 *data,
	       u64 *parity);
int t4_edc_read(struct adapter *adap, int idx, u32 addr, __be32 *data,
		u64 *parity);
const char *t4_get_port_type_description(enum fw_port_type port_type);
void t4_get_port_stats(struct adapter *adap, int idx, struct port_stats *p);
void t4_read_mtu_tbl(struct adapter *adap, u16 *mtus, u8 *mtu_log);
void t4_tp_wr_bits_indirect(struct adapter *adap, unsigned int addr,
			    unsigned int mask, unsigned int val);
void t4_tp_get_tcp_stats(struct adapter *adap, struct tp_tcp_stats *v4,
			 struct tp_tcp_stats *v6);
void t4_load_mtus(struct adapter *adap, const unsigned short *mtus,
		  const unsigned short *alpha, const unsigned short *beta);

void t4_mk_filtdelwr(unsigned int ftid, struct fw_filter_wr *wr, int qid);

void t4_wol_magic_enable(struct adapter *adap, unsigned int port,
			 const u8 *addr);
int t4_wol_pat_enable(struct adapter *adap, unsigned int port, unsigned int map,
		      u64 mask0, u64 mask1, unsigned int crc, bool enable);

int t4_fw_hello(struct adapter *adap, unsigned int mbox, unsigned int evt_mbox,
		enum dev_master master, enum dev_state *state);
int t4_fw_bye(struct adapter *adap, unsigned int mbox);
int t4_early_init(struct adapter *adap, unsigned int mbox);
int t4_fw_reset(struct adapter *adap, unsigned int mbox, int reset);
int t4_fixup_host_params(struct adapter *adap, unsigned int page_size,
			  unsigned int cache_line_size);
int t4_fw_initialize(struct adapter *adap, unsigned int mbox);
int t4_query_params(struct adapter *adap, unsigned int mbox, unsigned int pf,
		    unsigned int vf, unsigned int nparams, const u32 *params,
		    u32 *val);
int t4_set_params(struct adapter *adap, unsigned int mbox, unsigned int pf,
		  unsigned int vf, unsigned int nparams, const u32 *params,
		  const u32 *val);
int t4_set_params_nosleep(struct adapter *adap, unsigned int mbox,
			  unsigned int pf, unsigned int vf,
			  unsigned int nparams, const u32 *params,
			  const u32 *val);
int t4_cfg_pfvf(struct adapter *adap, unsigned int mbox, unsigned int pf,
		unsigned int vf, unsigned int txq, unsigned int txq_eth_ctrl,
		unsigned int rxqi, unsigned int rxq, unsigned int tc,
		unsigned int vi, unsigned int cmask, unsigned int pmask,
		unsigned int nexact, unsigned int rcaps, unsigned int wxcaps);
int t4_alloc_vi(struct adapter *adap, unsigned int mbox, unsigned int port,
		unsigned int pf, unsigned int vf, unsigned int nmac, u8 *mac,
		unsigned int *rss_size);
int t4_set_rxmode(struct adapter *adap, unsigned int mbox, unsigned int viid,
		int mtu, int promisc, int all_multi, int bcast, int vlanex,
		bool sleep_ok);
int t4_alloc_mac_filt(struct adapter *adap, unsigned int mbox,
		      unsigned int viid, bool free, unsigned int naddr,
		      const u8 **addr, u16 *idx, u64 *hash, bool sleep_ok);
int t4_change_mac(struct adapter *adap, unsigned int mbox, unsigned int viid,
		  int idx, const u8 *addr, bool persist, bool add_smt);
int t4_set_addr_hash(struct adapter *adap, unsigned int mbox, unsigned int viid,
		     bool ucast, u64 vec, bool sleep_ok);
int t4_enable_vi_params(struct adapter *adap, unsigned int mbox,
			unsigned int viid, bool rx_en, bool tx_en, bool dcb_en);
int t4_enable_vi(struct adapter *adap, unsigned int mbox, unsigned int viid,
		 bool rx_en, bool tx_en);
int t4_identify_port(struct adapter *adap, unsigned int mbox, unsigned int viid,
		     unsigned int nblinks);
int t4_mdio_rd(struct adapter *adap, unsigned int mbox, unsigned int phy_addr,
	       unsigned int mmd, unsigned int reg, u16 *valp);
int t4_mdio_wr(struct adapter *adap, unsigned int mbox, unsigned int phy_addr,
	       unsigned int mmd, unsigned int reg, u16 val);
int t4_iq_free(struct adapter *adap, unsigned int mbox, unsigned int pf,
	       unsigned int vf, unsigned int iqtype, unsigned int iqid,
	       unsigned int fl0id, unsigned int fl1id);
int t4_eth_eq_free(struct adapter *adap, unsigned int mbox, unsigned int pf,
		   unsigned int vf, unsigned int eqid);
int t4_ctrl_eq_free(struct adapter *adap, unsigned int mbox, unsigned int pf,
		    unsigned int vf, unsigned int eqid);
int t4_ofld_eq_free(struct adapter *adap, unsigned int mbox, unsigned int pf,
		    unsigned int vf, unsigned int eqid);
int t4_handle_fw_rpl(struct adapter *adap, const __be64 *rpl);
void t4_db_full(struct adapter *adapter);
void t4_db_dropped(struct adapter *adapter);
int t4_fwaddrspace_write(struct adapter *adap, unsigned int mbox,
			 u32 addr, u32 val);
void t4_sge_decode_idma_state(struct adapter *adapter, int state);
#endif /* __CXGB4_H__ */