summaryrefslogtreecommitdiffstats
path: root/drivers/scsi/be2iscsi/be_cmds.h
blob: 497eb29e5c9e1634a388c6be4902fbdc4c177471 (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
/**
 * Copyright (C) 2005 - 2011 Emulex
 * All rights reserved.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License version 2
 * as published by the Free Software Foundation.  The full GNU General
 * Public License is included in this distribution in the file called COPYING.
 *
 * Contact Information:
 * linux-drivers@emulex.com
 *
 * Emulex
 * 3333 Susan Street
 * Costa Mesa, CA 92626
 */

#ifndef BEISCSI_CMDS_H
#define BEISCSI_CMDS_H

/**
 * The driver sends configuration and managements command requests to the
 * firmware in the BE. These requests are communicated to the processor
 * using Work Request Blocks (WRBs) submitted to the MCC-WRB ring or via one
 * WRB inside a MAILBOX.
 * The commands are serviced by the ARM processor in the BladeEngine's MPU.
 */
struct be_sge {
	u32 pa_lo;
	u32 pa_hi;
	u32 len;
};

#define MCC_WRB_SGE_CNT_SHIFT 3	/* bits 3 - 7 of dword 0 */
#define MCC_WRB_SGE_CNT_MASK 0x1F	/* bits 3 - 7 of dword 0 */
struct be_mcc_wrb {
	u32 embedded;		/* dword 0 */
	u32 payload_length;	/* dword 1 */
	u32 tag0;		/* dword 2 */
	u32 tag1;		/* dword 3 */
	u32 rsvd;		/* dword 4 */
	union {
		u8 embedded_payload[236];	/* used by embedded cmds */
		struct be_sge sgl[19];	/* used by non-embedded cmds */
	} payload;
};

#define CQE_FLAGS_VALID_MASK (1 << 31)
#define CQE_FLAGS_ASYNC_MASK (1 << 30)
#define CQE_FLAGS_COMPLETED_MASK	(1 << 28)
#define CQE_FLAGS_CONSUMED_MASK		(1 << 27)

/* Completion Status */
#define MCC_STATUS_SUCCESS 0x0

#define CQE_STATUS_COMPL_MASK 0xFFFF
#define CQE_STATUS_COMPL_SHIFT 0	/* bits 0 - 15 */
#define CQE_STATUS_EXTD_MASK 0xFFFF
#define CQE_STATUS_EXTD_SHIFT 16		/* bits 0 - 15 */

struct be_mcc_compl {
	u32 status;		/* dword 0 */
	u32 tag0;		/* dword 1 */
	u32 tag1;		/* dword 2 */
	u32 flags;		/* dword 3 */
};

/********* Mailbox door bell *************/
/**
 * Used for driver communication with the FW.
 * The software must write this register twice to post any command. First,
 * it writes the register with hi=1 and the upper bits of the physical address
 * for the MAILBOX structure. Software must poll the ready bit until this
 * is acknowledged. Then, sotware writes the register with hi=0 with the lower
 * bits in the address. It must poll the ready bit until the command is
 * complete. Upon completion, the MAILBOX will contain a valid completion
 * queue entry.
 */
#define MPU_MAILBOX_DB_OFFSET	0x160
#define MPU_MAILBOX_DB_RDY_MASK	0x1	/* bit 0 */
#define MPU_MAILBOX_DB_HI_MASK	0x2	/* bit 1 */

/********** MPU semphore ******************/
#define MPU_EP_SEMAPHORE_OFFSET 0xac
#define EP_SEMAPHORE_POST_STAGE_MASK 0x0000FFFF
#define EP_SEMAPHORE_POST_ERR_MASK 0x1
#define EP_SEMAPHORE_POST_ERR_SHIFT 31

/********** MCC door bell ************/
#define DB_MCCQ_OFFSET 0x140
#define DB_MCCQ_RING_ID_MASK 0x7FF		/* bits 0 - 10 */
/* Number of entries posted */
#define DB_MCCQ_NUM_POSTED_SHIFT 16		/* bits 16 - 29 */

/* MPU semphore POST stage values */
#define POST_STAGE_ARMFW_RDY		0xc000	/* FW is done with POST */

/**
 * When the async bit of mcc_compl is set, the last 4 bytes of
 * mcc_compl is interpreted as follows:
 */
#define ASYNC_TRAILER_EVENT_CODE_SHIFT	8	/* bits 8 - 15 */
#define ASYNC_TRAILER_EVENT_CODE_MASK	0xFF
#define ASYNC_EVENT_CODE_LINK_STATE	0x1
struct be_async_event_trailer {
	u32 code;
};

enum {
	ASYNC_EVENT_LINK_DOWN = 0x0,
	ASYNC_EVENT_LINK_UP = 0x1
};

/**
 * When the event code of an async trailer is link-state, the mcc_compl
 * must be interpreted as follows
 */
struct be_async_event_link_state {
	u8 physical_port;
	u8 port_link_status;
	u8 port_duplex;
	u8 port_speed;
	u8 port_fault;
	u8 rsvd0[7];
	struct be_async_event_trailer trailer;
} __packed;

struct be_mcc_mailbox {
	struct be_mcc_wrb wrb;
	struct be_mcc_compl compl;
};

/* Type of subsystems supported by FW */
#define CMD_SUBSYSTEM_COMMON    0x1
#define CMD_SUBSYSTEM_ISCSI     0x2
#define CMD_SUBSYSTEM_ETH       0x3
#define CMD_SUBSYSTEM_ISCSI_INI 0x6
#define CMD_COMMON_TCP_UPLOAD   0x1

/**
 * List of common opcodes subsystem  CMD_SUBSYSTEM_COMMON
 * These opcodes are unique for each subsystem defined above
 */
#define OPCODE_COMMON_CQ_CREATE				12
#define OPCODE_COMMON_EQ_CREATE				13
#define OPCODE_COMMON_MCC_CREATE			21
#define OPCODE_COMMON_GET_CNTL_ATTRIBUTES		32
#define OPCODE_COMMON_GET_FW_VERSION			35
#define OPCODE_COMMON_MODIFY_EQ_DELAY			41
#define OPCODE_COMMON_FIRMWARE_CONFIG			42
#define OPCODE_COMMON_MCC_DESTROY			53
#define OPCODE_COMMON_CQ_DESTROY			54
#define OPCODE_COMMON_EQ_DESTROY			55
#define OPCODE_COMMON_QUERY_FIRMWARE_CONFIG		58
#define OPCODE_COMMON_FUNCTION_RESET			61

/**
 * LIST of opcodes that are common between Initiator and Target
 * used by CMD_SUBSYSTEM_ISCSI
 * These opcodes are unique for each subsystem defined above
 */
#define OPCODE_COMMON_ISCSI_CFG_POST_SGL_PAGES		2
#define OPCODE_COMMON_ISCSI_CFG_REMOVE_SGL_PAGES        3
#define OPCODE_COMMON_ISCSI_NTWK_GET_NIC_CONFIG		7
#define OPCODE_COMMON_ISCSI_NTWK_SET_VLAN		14
#define OPCODE_COMMON_ISCSI_NTWK_CONFIGURE_STATELESS_IP_ADDR	17
#define OPCODE_COMMON_ISCSI_NTWK_MODIFY_IP_ADDR		21
#define OPCODE_COMMON_ISCSI_NTWK_GET_DEFAULT_GATEWAY	22
#define OPCODE_COMMON_ISCSI_NTWK_MODIFY_DEFAULT_GATEWAY 23
#define OPCODE_COMMON_ISCSI_NTWK_GET_ALL_IF_ID		24
#define OPCODE_COMMON_ISCSI_NTWK_GET_IF_INFO		25
#define OPCODE_COMMON_ISCSI_SET_FRAGNUM_BITS_FOR_SGL_CRA 61
#define OPCODE_COMMON_ISCSI_DEFQ_CREATE                 64
#define OPCODE_COMMON_ISCSI_DEFQ_DESTROY		65
#define OPCODE_COMMON_ISCSI_WRBQ_CREATE			66
#define OPCODE_COMMON_ISCSI_WRBQ_DESTROY		67

struct be_cmd_req_hdr {
	u8 opcode;		/* dword 0 */
	u8 subsystem;		/* dword 0 */
	u8 port_number;		/* dword 0 */
	u8 domain;		/* dword 0 */
	u32 timeout;		/* dword 1 */
	u32 request_length;	/* dword 2 */
	u32 rsvd0;		/* dword 3 */
};

struct be_cmd_resp_hdr {
	u32 info;		/* dword 0 */
	u32 status;		/* dword 1 */
	u32 response_length;	/* dword 2 */
	u32 actual_resp_len;	/* dword 3 */
};

struct phys_addr {
	u32 lo;
	u32 hi;
};

/**************************
 * BE Command definitions *
 **************************/

/**
 * Pseudo amap definition in which each bit of the actual structure is defined
 * as a byte - used to calculate offset/shift/mask of each field
 */
struct amap_eq_context {
	u8 cidx[13];		/* dword 0 */
	u8 rsvd0[3];		/* dword 0 */
	u8 epidx[13];		/* dword 0 */
	u8 valid;		/* dword 0 */
	u8 rsvd1;		/* dword 0 */
	u8 size;		/* dword 0 */
	u8 pidx[13];		/* dword 1 */
	u8 rsvd2[3];		/* dword 1 */
	u8 pd[10];		/* dword 1 */
	u8 count[3];		/* dword 1 */
	u8 solevent;		/* dword 1 */
	u8 stalled;		/* dword 1 */
	u8 armed;		/* dword 1 */
	u8 rsvd3[4];		/* dword 2 */
	u8 func[8];		/* dword 2 */
	u8 rsvd4;		/* dword 2 */
	u8 delaymult[10];	/* dword 2 */
	u8 rsvd5[2];		/* dword 2 */
	u8 phase[2];		/* dword 2 */
	u8 nodelay;		/* dword 2 */
	u8 rsvd6[4];		/* dword 2 */
	u8 rsvd7[32];		/* dword 3 */
} __packed;

struct be_cmd_req_eq_create {
	struct be_cmd_req_hdr hdr;	/* dw[4] */
	u16 num_pages;		/* sword */
	u16 rsvd0;		/* sword */
	u8 context[sizeof(struct amap_eq_context) / 8];	/* dw[4] */
	struct phys_addr pages[8];
} __packed;

struct be_cmd_resp_eq_create {
	struct be_cmd_resp_hdr resp_hdr;
	u16 eq_id;		/* sword */
	u16 rsvd0;		/* sword */
} __packed;

struct mgmt_chap_format {
	u32 flags;
	u8  intr_chap_name[256];
	u8  intr_secret[16];
	u8  target_chap_name[256];
	u8  target_secret[16];
	u16 intr_chap_name_length;
	u16 intr_secret_length;
	u16 target_chap_name_length;
	u16 target_secret_length;
} __packed;

struct mgmt_auth_method_format {
	u8	auth_method_type;
	u8	padding[3];
	struct	mgmt_chap_format chap;
} __packed;

struct mgmt_conn_login_options {
	u8 flags;
	u8 header_digest;
	u8 data_digest;
	u8 rsvd0;
	u32 max_recv_datasegment_len_ini;
	u32 max_recv_datasegment_len_tgt;
	u32 tcp_mss;
	u32 tcp_window_size;
	struct	mgmt_auth_method_format auth_data;
} __packed;

struct ip_address_format {
	u16 size_of_structure;
	u8 reserved;
	u8 ip_type;
	u8 ip_address[16];
	u32 rsvd0;
} __packed;

struct	mgmt_conn_info {
	u32	connection_handle;
	u32	connection_status;
	u16	src_port;
	u16	dest_port;
	u16	dest_port_redirected;
	u16	cid;
	u32	estimated_throughput;
	struct	ip_address_format	src_ipaddr;
	struct	ip_address_format	dest_ipaddr;
	struct	ip_address_format	dest_ipaddr_redirected;
	struct	mgmt_conn_login_options	negotiated_login_options;
} __packed;

struct mgmt_session_login_options {
	u8	flags;
	u8	error_recovery_level;
	u16	rsvd0;
	u32	first_burst_length;
	u32	max_burst_length;
	u16	max_connections;
	u16	max_outstanding_r2t;
	u16	default_time2wait;
	u16	default_time2retain;
} __packed;

struct mgmt_session_info {
	u32	session_handle;
	u32	status;
	u8	isid[6];
	u16	tsih;
	u32	session_flags;
	u16	conn_count;
	u16	pad;
	u8	target_name[224];
	u8	initiator_iscsiname[224];
	struct	mgmt_session_login_options negotiated_login_options;
	struct	mgmt_conn_info	conn_list[1];
} __packed;

struct  be_cmd_req_get_session {
	struct be_cmd_req_hdr hdr;
	u32 session_handle;
} __packed;

struct  be_cmd_resp_get_session {
	struct be_cmd_resp_hdr hdr;
	struct mgmt_session_info session_info;
} __packed;

struct mac_addr {
	u16 size_of_struct;
	u8 addr[ETH_ALEN];
} __packed;

struct be_cmd_req_get_boot_target {
	struct be_cmd_req_hdr hdr;
} __packed;

struct be_cmd_resp_get_boot_target {
	struct be_cmd_resp_hdr hdr;
	u32  boot_session_count;
	int  boot_session_handle;
};

struct be_cmd_req_mac_query {
	struct be_cmd_req_hdr hdr;
	u8 type;
	u8 permanent;
	u16 if_id;
} __packed;

struct be_cmd_resp_mac_query {
	struct be_cmd_resp_hdr hdr;
	struct mac_addr mac;
};

/******************** Create CQ ***************************/
/**
 * Pseudo amap definition in which each bit of the actual structure is defined
 * as a byte - used to calculate offset/shift/mask of each field
 */
struct amap_cq_context {
	u8 cidx[11];		/* dword 0 */
	u8 rsvd0;		/* dword 0 */
	u8 coalescwm[2];	/* dword 0 */
	u8 nodelay;		/* dword 0 */
	u8 epidx[11];		/* dword 0 */
	u8 rsvd1;		/* dword 0 */
	u8 count[2];		/* dword 0 */
	u8 valid;		/* dword 0 */
	u8 solevent;		/* dword 0 */
	u8 eventable;		/* dword 0 */
	u8 pidx[11];		/* dword 1 */
	u8 rsvd2;		/* dword 1 */
	u8 pd[10];		/* dword 1 */
	u8 eqid[8];		/* dword 1 */
	u8 stalled;		/* dword 1 */
	u8 armed;		/* dword 1 */
	u8 rsvd3[4];		/* dword 2 */
	u8 func[8];		/* dword 2 */
	u8 rsvd4[20];		/* dword 2 */
	u8 rsvd5[32];		/* dword 3 */
} __packed;

struct be_cmd_req_cq_create {
	struct be_cmd_req_hdr hdr;
	u16 num_pages;
	u16 rsvd0;
	u8 context[sizeof(struct amap_cq_context) / 8];
	struct phys_addr pages[4];
} __packed;

struct be_cmd_resp_cq_create {
	struct be_cmd_resp_hdr hdr;
	u16 cq_id;
	u16 rsvd0;
} __packed;

/******************** Create MCCQ ***************************/
/**
 * Pseudo amap definition in which each bit of the actual structure is defined
 * as a byte - used to calculate offset/shift/mask of each field
 */
struct amap_mcc_context {
	u8 con_index[14];
	u8 rsvd0[2];
	u8 ring_size[4];
	u8 fetch_wrb;
	u8 fetch_r2t;
	u8 cq_id[10];
	u8 prod_index[14];
	u8 fid[8];
	u8 pdid[9];
	u8 valid;
	u8 rsvd1[32];
	u8 rsvd2[32];
} __packed;

struct be_cmd_req_mcc_create {
	struct be_cmd_req_hdr hdr;
	u16 num_pages;
	u16 rsvd0;
	u8 context[sizeof(struct amap_mcc_context) / 8];
	struct phys_addr pages[8];
} __packed;

struct be_cmd_resp_mcc_create {
	struct be_cmd_resp_hdr hdr;
	u16 id;
	u16 rsvd0;
} __packed;

/******************** Q Destroy  ***************************/
/* Type of Queue to be destroyed */
enum {
	QTYPE_EQ = 1,
	QTYPE_CQ,
	QTYPE_MCCQ,
	QTYPE_WRBQ,
	QTYPE_DPDUQ,
	QTYPE_SGL
};

struct be_cmd_req_q_destroy {
	struct be_cmd_req_hdr hdr;
	u16 id;
	u16 bypass_flush;	/* valid only for rx q destroy */
} __packed;

struct macaddr {
	u8 byte[ETH_ALEN];
};

struct be_cmd_req_mcast_mac_config {
	struct be_cmd_req_hdr hdr;
	u16 num_mac;
	u8 promiscuous;
	u8 interface_id;
	struct macaddr mac[32];
} __packed;

static inline void *embedded_payload(struct be_mcc_wrb *wrb)
{
	return wrb->payload.embedded_payload;
}

static inline struct be_sge *nonembedded_sgl(struct be_mcc_wrb *wrb)
{
	return &wrb->payload.sgl[0];
}

/******************** Modify EQ Delay *******************/
struct be_cmd_req_modify_eq_delay {
	struct be_cmd_req_hdr hdr;
	u32 num_eq;
	struct {
		u32 eq_id;
		u32 phase;
		u32 delay_multiplier;
	} delay[8];
} __packed;

/******************** Get MAC ADDR *******************/

#define ETH_ALEN	6

struct be_cmd_req_get_mac_addr {
	struct be_cmd_req_hdr hdr;
	u32 nic_port_count;
	u32 speed;
	u32 max_speed;
	u32 link_state;
	u32 max_frame_size;
	u16 size_of_structure;
	u8 mac_address[ETH_ALEN];
	u32 rsvd[23];
};

struct be_cmd_resp_get_mac_addr {
	struct be_cmd_resp_hdr hdr;
	u32 nic_port_count;
	u32 speed;
	u32 max_speed;
	u32 link_state;
	u32 max_frame_size;
	u16 size_of_structure;
	u8 mac_address[6];
	u32 rsvd[23];
};

int beiscsi_cmd_eq_create(struct be_ctrl_info *ctrl,
			  struct be_queue_info *eq, int eq_delay);

int beiscsi_cmd_cq_create(struct be_ctrl_info *ctrl,
			  struct be_queue_info *cq, struct be_queue_info *eq,
			  bool sol_evts, bool no_delay,
			  int num_cqe_dma_coalesce);

int beiscsi_cmd_q_destroy(struct be_ctrl_info *ctrl, struct be_queue_info *q,
			  int type);
int beiscsi_cmd_mccq_create(struct beiscsi_hba *phba,
			struct be_queue_info *mccq,
			struct be_queue_info *cq);

int be_poll_mcc(struct be_ctrl_info *ctrl);
int mgmt_check_supported_fw(struct be_ctrl_info *ctrl,
				      struct beiscsi_hba *phba);
unsigned int be_cmd_get_mac_addr(struct beiscsi_hba *phba);
unsigned int beiscsi_get_boot_target(struct beiscsi_hba *phba);
unsigned int beiscsi_get_session_info(struct beiscsi_hba *phba,
				  u32 boot_session_handle,
				  struct be_dma_mem *nonemb_cmd);

void free_mcc_tag(struct be_ctrl_info *ctrl, unsigned int tag);
/*ISCSI Functuions */
int be_cmd_fw_initialize(struct be_ctrl_info *ctrl);

struct be_mcc_wrb *wrb_from_mbox(struct be_dma_mem *mbox_mem);
struct be_mcc_wrb *wrb_from_mccq(struct beiscsi_hba *phba);
int be_mcc_notify_wait(struct beiscsi_hba *phba);
void be_mcc_notify(struct beiscsi_hba *phba);
unsigned int alloc_mcc_tag(struct beiscsi_hba *phba);
void beiscsi_async_link_state_process(struct beiscsi_hba *phba,
		struct be_async_event_link_state *evt);
int be_mcc_compl_process_isr(struct be_ctrl_info *ctrl,
				    struct be_mcc_compl *compl);

int be_mbox_notify(struct be_ctrl_info *ctrl);

int be_cmd_create_default_pdu_queue(struct be_ctrl_info *ctrl,
				    struct be_queue_info *cq,
				    struct be_queue_info *dq, int length,
				    int entry_size);

int be_cmd_iscsi_post_sgl_pages(struct be_ctrl_info *ctrl,
				struct be_dma_mem *q_mem, u32 page_offset,
				u32 num_pages);

int be_cmd_wrbq_create(struct be_ctrl_info *ctrl, struct be_dma_mem *q_mem,
		       struct be_queue_info *wrbq);

bool is_link_state_evt(u32 trailer);

struct be_default_pdu_context {
	u32 dw[4];
} __packed;

struct amap_be_default_pdu_context {
	u8 dbuf_cindex[13];	/* dword 0 */
	u8 rsvd0[3];		/* dword 0 */
	u8 ring_size[4];	/* dword 0 */
	u8 ring_state[4];	/* dword 0 */
	u8 rsvd1[8];		/* dword 0 */
	u8 dbuf_pindex[13];	/* dword 1 */
	u8 rsvd2;		/* dword 1 */
	u8 pci_func_id[8];	/* dword 1 */
	u8 rx_pdid[9];		/* dword 1 */
	u8 rx_pdid_valid;	/* dword 1 */
	u8 default_buffer_size[16];	/* dword 2 */
	u8 cq_id_recv[10];	/* dword 2 */
	u8 rx_pdid_not_valid;	/* dword 2 */
	u8 rsvd3[5];		/* dword 2 */
	u8 rsvd4[32];		/* dword 3 */
} __packed;

struct be_defq_create_req {
	struct be_cmd_req_hdr hdr;
	u16 num_pages;
	u8 ulp_num;
	u8 rsvd0;
	struct be_default_pdu_context context;
	struct phys_addr pages[8];
} __packed;

struct be_defq_create_resp {
	struct be_cmd_req_hdr hdr;
	u16 id;
	u16 rsvd0;
} __packed;

struct be_post_sgl_pages_req {
	struct be_cmd_req_hdr hdr;
	u16 num_pages;
	u16 page_offset;
	u32 rsvd0;
	struct phys_addr pages[26];
	u32 rsvd1;
} __packed;

struct be_wrbq_create_req {
	struct be_cmd_req_hdr hdr;
	u16 num_pages;
	u8 ulp_num;
	u8 rsvd0;
	struct phys_addr pages[8];
} __packed;

struct be_wrbq_create_resp {
	struct be_cmd_resp_hdr resp_hdr;
	u16 cid;
	u16 rsvd0;
} __packed;

#define SOL_CID_MASK		0x0000FFC0
#define SOL_CODE_MASK		0x0000003F
#define SOL_WRB_INDEX_MASK	0x00FF0000
#define SOL_CMD_WND_MASK	0xFF000000
#define SOL_RES_CNT_MASK	0x7FFFFFFF
#define SOL_EXP_CMD_SN_MASK	0xFFFFFFFF
#define SOL_HW_STS_MASK		0x000000FF
#define SOL_STS_MASK		0x0000FF00
#define SOL_RESP_MASK		0x00FF0000
#define SOL_FLAGS_MASK		0x7F000000
#define SOL_S_MASK		0x80000000

struct sol_cqe {
	u32 dw[4];
};

struct amap_sol_cqe {
	u8 hw_sts[8];		/* dword 0 */
	u8 i_sts[8];		/* dword 0 */
	u8 i_resp[8];		/* dword 0 */
	u8 i_flags[7];		/* dword 0 */
	u8 s;			/* dword 0 */
	u8 i_exp_cmd_sn[32];	/* dword 1 */
	u8 code[6];		/* dword 2 */
	u8 cid[10];		/* dword 2 */
	u8 wrb_index[8];	/* dword 2 */
	u8 i_cmd_wnd[8];	/* dword 2 */
	u8 i_res_cnt[31];	/* dword 3 */
	u8 valid;		/* dword 3 */
} __packed;

#define SOL_ICD_INDEX_MASK	0x0003FFC0
struct amap_sol_cqe_ring {
	u8 hw_sts[8];		/* dword 0 */
	u8 i_sts[8];		/* dword 0 */
	u8 i_resp[8];		/* dword 0 */
	u8 i_flags[7];		/* dword 0 */
	u8 s;			/* dword 0 */
	u8 i_exp_cmd_sn[32];	/* dword 1 */
	u8 code[6];		/* dword 2 */
	u8 icd_index[12];	/* dword 2 */
	u8 rsvd[6];		/* dword 2 */
	u8 i_cmd_wnd[8];	/* dword 2 */
	u8 i_res_cnt[31];	/* dword 3 */
	u8 valid;		/* dword 3 */
} __packed;



/**
 * Post WRB Queue Doorbell Register used by the host Storage
 * stack to notify the
 * controller of a posted Work Request Block
 */
#define DB_WRB_POST_CID_MASK		0x3FF	/* bits 0 - 9 */
#define DB_DEF_PDU_WRB_INDEX_MASK	0xFF	/* bits 0 - 9 */

#define DB_DEF_PDU_WRB_INDEX_SHIFT	16
#define DB_DEF_PDU_NUM_POSTED_SHIFT	24

struct fragnum_bits_for_sgl_cra_in {
	struct be_cmd_req_hdr hdr;
	u32 num_bits;
} __packed;

struct iscsi_cleanup_req {
	struct be_cmd_req_hdr hdr;
	u16 chute;
	u8 hdr_ring_id;
	u8 data_ring_id;

} __packed;

struct eq_delay {
	u32 eq_id;
	u32 phase;
	u32 delay_multiplier;
} __packed;

struct be_eq_delay_params_in {
	struct be_cmd_req_hdr hdr;
	u32 num_eq;
	struct eq_delay delay[8];
} __packed;

struct tcp_connect_and_offload_in {
	struct be_cmd_req_hdr hdr;
	struct ip_address_format ip_address;
	u16 tcp_port;
	u16 cid;
	u16 cq_id;
	u16 defq_id;
	struct phys_addr dataout_template_pa;
	u16 hdr_ring_id;
	u16 data_ring_id;
	u8 do_offload;
	u8 rsvd0[3];
} __packed;

struct tcp_connect_and_offload_out {
	struct be_cmd_resp_hdr hdr;
	u32 connection_handle;
	u16 cid;
	u16 rsvd0;

} __packed;

struct be_mcc_wrb_context {
	struct MCC_WRB *wrb;
	int *users_final_status;
} __packed;

#define DB_DEF_PDU_RING_ID_MASK		0x3FF	/* bits 0 - 9 */
#define DB_DEF_PDU_CQPROC_MASK		0x3FFF	/* bits 0 - 9 */
#define DB_DEF_PDU_REARM_SHIFT		14
#define DB_DEF_PDU_EVENT_SHIFT		15
#define DB_DEF_PDU_CQPROC_SHIFT		16

struct dmsg_cqe {
	u32 dw[4];
} __packed;

struct tcp_upload_params_in {
	struct be_cmd_req_hdr hdr;
	u16 id;
	u16 upload_type;
	u32 reset_seq;
} __packed;

struct tcp_upload_params_out {
	u32 dw[32];
} __packed;

union tcp_upload_params {
	struct tcp_upload_params_in request;
	struct tcp_upload_params_out response;
} __packed;

struct be_ulp_fw_cfg {
	u32 ulp_mode;
	u32 etx_base;
	u32 etx_count;
	u32 sq_base;
	u32 sq_count;
	u32 rq_base;
	u32 rq_count;
	u32 dq_base;
	u32 dq_count;
	u32 lro_base;
	u32 lro_count;
	u32 icd_base;
	u32 icd_count;
};

struct be_fw_cfg {
	struct be_cmd_req_hdr hdr;
	u32 be_config_number;
	u32 asic_revision;
	u32 phys_port;
	u32 function_mode;
	struct be_ulp_fw_cfg ulp[2];
	u32 function_caps;
} __packed;

struct be_all_if_id {
	struct be_cmd_req_hdr hdr;
	u32 if_count;
	u32 if_hndl_list[1];
} __packed;

#define ISCSI_OPCODE_SCSI_DATA_OUT		5
#define OPCODE_COMMON_MODIFY_EQ_DELAY		41
#define OPCODE_COMMON_ISCSI_CLEANUP		59
#define	OPCODE_COMMON_TCP_UPLOAD		56
#define OPCODE_COMMON_ISCSI_TCP_CONNECT_AND_OFFLOAD 70
#define OPCODE_COMMON_ISCSI_ERROR_RECOVERY_INVALIDATE_COMMANDS 1
#define OPCODE_ISCSI_INI_CFG_GET_HBA_NAME	6
#define OPCODE_ISCSI_INI_CFG_SET_HBA_NAME	7
#define OPCODE_ISCSI_INI_SESSION_GET_A_SESSION  14
#define OPCODE_ISCSI_INI_DRIVER_OFFLOAD_SESSION 41
#define OPCODE_ISCSI_INI_DRIVER_INVALIDATE_CONNECTION 42
#define OPCODE_ISCSI_INI_BOOT_GET_BOOT_TARGET	52

/* --- CMD_ISCSI_INVALIDATE_CONNECTION_TYPE --- */
#define CMD_ISCSI_COMMAND_INVALIDATE		1
#define CMD_ISCSI_CONNECTION_INVALIDATE		0x8001
#define CMD_ISCSI_CONNECTION_ISSUE_TCP_RST	0x8002

#define INI_WR_CMD			1	/* Initiator write command */
#define INI_TMF_CMD			2	/* Initiator TMF command */
#define INI_NOPOUT_CMD			3	/* Initiator; Send a NOP-OUT */
#define INI_RD_CMD			5	/* Initiator requesting to send
						 * a read command
						 */
#define TGT_CTX_UPDT_CMD		7	/* Target context update */
#define TGT_STS_CMD			8	/* Target R2T and other BHS
						 * where only the status number
						 * need to be updated
						 */
#define TGT_DATAIN_CMD			9	/* Target Data-Ins in response
						 * to read command
						 */
#define TGT_SOS_PDU			10	/* Target:standalone status
						 * response
						 */
#define TGT_DM_CMD			11	/* Indicates that the bhs
						 *  preparedby
						 * driver should not be touched
						 */
/* --- CMD_CHUTE_TYPE --- */
#define CMD_CONNECTION_CHUTE_0		1
#define CMD_CONNECTION_CHUTE_1		2
#define CMD_CONNECTION_CHUTE_2		3

#define EQ_MAJOR_CODE_COMPLETION	0

#define CMD_ISCSI_SESSION_DEL_CFG_FROM_FLASH 0
#define CMD_ISCSI_SESSION_SAVE_CFG_ON_FLASH 1

/* --- CONNECTION_UPLOAD_PARAMS --- */
/* These parameters are used to define the type of upload desired.  */
#define CONNECTION_UPLOAD_GRACEFUL      1	/* Graceful upload  */
#define CONNECTION_UPLOAD_ABORT_RESET   2	/* Abortive upload with
						 * reset
						 */
#define CONNECTION_UPLOAD_ABORT		3	/* Abortive upload without
						 * reset
						 */
#define CONNECTION_UPLOAD_ABORT_WITH_SEQ 4	/* Abortive upload with reset,
						 * sequence number by driver  */

/* Returns byte size of given field with a structure. */

/* Returns the number of items in the field array. */
#define BE_NUMBER_OF_FIELD(_type_, _field_)	\
	(FIELD_SIZEOF(_type_, _field_)/sizeof((((_type_ *)0)->_field_[0])))\

/**
 * Different types of iSCSI completions to host driver for both initiator
 * and taget mode
 * of operation.
 */
#define SOL_CMD_COMPLETE		1	/* Solicited command completed
						 * normally
						 */
#define SOL_CMD_KILLED_DATA_DIGEST_ERR  2	/* Solicited command got
						 * invalidated internally due
						 * to Data Digest error
						 */
#define CXN_KILLED_PDU_SIZE_EXCEEDS_DSL 3	/* Connection got invalidated
						 * internally
						 * due to a received PDU
						 * size > DSL
						 */
#define CXN_KILLED_BURST_LEN_MISMATCH   4	/* Connection got invalidated
						 * internally due ti received
						 * PDU sequence size >
						 * FBL/MBL.
						 */
#define CXN_KILLED_AHS_RCVD		5	/* Connection got invalidated
						 * internally due to a received
						 * PDU Hdr that has
						 * AHS */
#define CXN_KILLED_HDR_DIGEST_ERR	6	/* Connection got invalidated
						 * internally due to Hdr Digest
						 * error
						 */
#define CXN_KILLED_UNKNOWN_HDR		7	/* Connection got invalidated
						 *  internally
						 * due to a bad opcode in the
						 * pdu hdr
						 */
#define CXN_KILLED_STALE_ITT_TTT_RCVD	8	/* Connection got invalidated
						 * internally due to a received
						 * ITT/TTT that does not belong
						 * to this Connection
						 */
#define CXN_KILLED_INVALID_ITT_TTT_RCVD 9	/* Connection got invalidated
						 * internally due to received
						 * ITT/TTT value > Max
						 * Supported ITTs/TTTs
						 */
#define CXN_KILLED_RST_RCVD		10	/* Connection got invalidated
						 * internally due to an
						 * incoming TCP RST
						 */
#define CXN_KILLED_TIMED_OUT		11	/* Connection got invalidated
						 * internally due to timeout on
						 * tcp segment 12 retransmit
						 * attempts failed
						 */
#define CXN_KILLED_RST_SENT		12	/* Connection got invalidated
						 * internally due to TCP RST
						 * sent by the Tx side
						 */
#define CXN_KILLED_FIN_RCVD		13	/* Connection got invalidated
						 * internally due to an
						 * incoming TCP FIN.
						 */
#define CXN_KILLED_BAD_UNSOL_PDU_RCVD	14	/* Connection got invalidated
						 * internally due to bad
						 * unsolicited PDU Unsolicited
						 * PDUs are PDUs with
						 * ITT=0xffffffff
						 */
#define CXN_KILLED_BAD_WRB_INDEX_ERROR	15	/* Connection got invalidated
						 * internally due to bad WRB
						 * index.
						 */
#define CXN_KILLED_OVER_RUN_RESIDUAL	16	/* Command got invalidated
						 * internally due to received
						 * command has residual
						 * over run bytes.
						 */
#define CXN_KILLED_UNDER_RUN_RESIDUAL	17	/* Command got invalidated
						 * internally due to received
						 * command has residual under
						 * run bytes.
						 */
#define CMD_KILLED_INVALID_STATSN_RCVD	18	/* Command got invalidated
						 * internally due to a received
						 * PDU has an invalid StatusSN
						 */
#define CMD_KILLED_INVALID_R2T_RCVD	19	/* Command got invalidated
						 * internally due to a received
						 * an R2T with some invalid
						 * fields in it
						 */
#define CMD_CXN_KILLED_LUN_INVALID	20	/* Command got invalidated
						 * internally due to received
						 * PDU has an invalid LUN.
						 */
#define CMD_CXN_KILLED_ICD_INVALID	21	/* Command got invalidated
						 * internally due to the
						 * corresponding ICD not in a
						 * valid state
						 */
#define CMD_CXN_KILLED_ITT_INVALID	22	/* Command got invalidated due
						 *  to received PDU has an
						 *  invalid ITT.
						 */
#define CMD_CXN_KILLED_SEQ_OUTOFORDER	23	/* Command got invalidated due
						 * to received sequence buffer
						 * offset is out of order.
						 */
#define CMD_CXN_KILLED_INVALID_DATASN_RCVD 24	/* Command got invalidated
						 * internally due to a
						 * received PDU has an invalid
						 * DataSN
						 */
#define CXN_INVALIDATE_NOTIFY		25	/* Connection invalidation
						 * completion notify.
						 */
#define CXN_INVALIDATE_INDEX_NOTIFY	26	/* Connection invalidation
						 * completion
						 * with data PDU index.
						 */
#define CMD_INVALIDATED_NOTIFY		27	/* Command invalidation
						 * completionnotifify.
						 */
#define UNSOL_HDR_NOTIFY		28	/* Unsolicited header notify.*/
#define UNSOL_DATA_NOTIFY		29	/* Unsolicited data notify.*/
#define UNSOL_DATA_DIGEST_ERROR_NOTIFY	30	/* Unsolicited data digest
						 * error notify.
						 */
#define DRIVERMSG_NOTIFY		31	/* TCP acknowledge based
						 * notification.
						 */
#define CXN_KILLED_CMND_DATA_NOT_ON_SAME_CONN 32 /* Connection got invalidated
						  * internally due to command
						  * and data are not on same
						  * connection.
						  */
#define SOL_CMD_KILLED_DIF_ERR		33	/* Solicited command got
						 *  invalidated internally due
						 *  to DIF error
						 */
#define CXN_KILLED_SYN_RCVD		34	/* Connection got invalidated
						 * internally due to incoming
						 * TCP SYN
						 */
#define CXN_KILLED_IMM_DATA_RCVD	35	/* Connection got invalidated
						 * internally due to an
						 * incoming Unsolicited PDU
						 * that has immediate data on
						 * the cxn
						 */

int beiscsi_pci_soft_reset(struct beiscsi_hba *phba);
int be_chk_reset_complete(struct beiscsi_hba *phba);

void be_wrb_hdr_prepare(struct be_mcc_wrb *wrb, int payload_len,
			bool embedded, u8 sge_cnt);

void be_cmd_hdr_prepare(struct be_cmd_req_hdr *req_hdr,
			u8 subsystem, u8 opcode, int cmd_len);

#endif /* !BEISCSI_CMDS_H */
OpenPOWER on IntegriCloud