Linux Audio

Check our new training course

Embedded Linux Audio

Check our new training course
with Creative Commons CC-BY-SA
lecture materials

Bootlin logo

Elixir Cross Referencer

Loading...
   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
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
/*  linux/drivers/scsi/esas2r/atvda.h
 *       ATTO VDA interface definitions
 *
 *  Copyright (c) 2001-2013 ATTO Technology, Inc.
 *  (mailto:linuxdrivers@attotech.com)
 */
/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/*
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; version 2 of the License.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  NO WARRANTY
 *  THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
 *  CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
 *  LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
 *  MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
 *  solely responsible for determining the appropriateness of using and
 *  distributing the Program and assumes all risks associated with its
 *  exercise of rights under this Agreement, including but not limited to
 *  the risks and costs of program errors, damage to or loss of data,
 *  programs or equipment, and unavailability or interruption of operations.
 *
 *  DISCLAIMER OF LIABILITY
 *  NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
 *  DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 *  DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
 *  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
 *  TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
 *  USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
 *  HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/


#ifndef ATVDA_H
#define ATVDA_H

struct __packed atto_dev_addr {
	u64 dev_port;
	u64 hba_port;
	u8 lun;
	u8 flags;
	   #define VDA_DEVADDRF_SATA   0x01
	   #define VDA_DEVADDRF_SSD    0x02
	u8 link_speed; /* VDALINKSPEED_xxx */
	u8 pad[1];
};

/* dev_addr2 was added for 64-bit alignment */

struct __packed atto_dev_addr2 {
	u64 dev_port;
	u64 hba_port;
	u8 lun;
	u8 flags;
	u8 link_speed;
	u8 pad[5];
};

struct __packed atto_vda_sge {
	u32 length;
	u64 address;
};


/* VDA request function codes */

#define VDA_FUNC_SCSI     0x00
#define VDA_FUNC_FLASH    0x01
#define VDA_FUNC_DIAG     0x02
#define VDA_FUNC_AE       0x03
#define VDA_FUNC_CLI      0x04
#define VDA_FUNC_IOCTL    0x05
#define VDA_FUNC_CFG      0x06
#define VDA_FUNC_MGT      0x07
#define VDA_FUNC_GSV      0x08


/* VDA request status values.  for host driver considerations, values for
 * SCSI requests start at zero.  other requests may use these values as well. */

#define RS_SUCCESS          0x00        /*! successful completion            */
#define RS_INV_FUNC         0x01        /*! invalid command function         */
#define RS_BUSY             0x02        /*! insufficient resources           */
#define RS_SEL              0x03        /*! no target at target_id           */
#define RS_NO_LUN           0x04        /*! invalid LUN                      */
#define RS_TIMEOUT          0x05        /*! request timeout                  */
#define RS_OVERRUN          0x06        /*! data overrun                     */
#define RS_UNDERRUN         0x07        /*! data underrun                    */
#define RS_SCSI_ERROR       0x08        /*! SCSI error occurred              */
#define RS_ABORTED          0x0A        /*! command aborted                  */
#define RS_RESID_MISM       0x0B        /*! residual length incorrect        */
#define RS_TM_FAILED        0x0C        /*! task management failed           */
#define RS_RESET            0x0D        /*! aborted due to bus reset         */
#define RS_ERR_DMA_SG       0x0E        /*! error reading SG list            */
#define RS_ERR_DMA_DATA     0x0F        /*! error transferring data          */
#define RS_UNSUPPORTED      0x10        /*! unsupported request              */
#define RS_SEL2             0x70        /*! internal generated RS_SEL        */
#define RS_VDA_BASE         0x80        /*! base of VDA-specific errors      */
#define RS_MGT_BASE         0x80        /*! base of VDA management errors    */
#define RS_SCAN_FAIL        (RS_MGT_BASE + 0x00)
#define RS_DEV_INVALID      (RS_MGT_BASE + 0x01)
#define RS_DEV_ASSIGNED     (RS_MGT_BASE + 0x02)
#define RS_DEV_REMOVE       (RS_MGT_BASE + 0x03)
#define RS_DEV_LOST         (RS_MGT_BASE + 0x04)
#define RS_SCAN_GEN         (RS_MGT_BASE + 0x05)
#define RS_GRP_INVALID      (RS_MGT_BASE + 0x08)
#define RS_GRP_EXISTS       (RS_MGT_BASE + 0x09)
#define RS_GRP_LIMIT        (RS_MGT_BASE + 0x0A)
#define RS_GRP_INTLV        (RS_MGT_BASE + 0x0B)
#define RS_GRP_SPAN         (RS_MGT_BASE + 0x0C)
#define RS_GRP_TYPE         (RS_MGT_BASE + 0x0D)
#define RS_GRP_MEMBERS      (RS_MGT_BASE + 0x0E)
#define RS_GRP_COMMIT       (RS_MGT_BASE + 0x0F)
#define RS_GRP_REBUILD      (RS_MGT_BASE + 0x10)
#define RS_GRP_REBUILD_TYPE (RS_MGT_BASE + 0x11)
#define RS_GRP_BLOCK_SIZE   (RS_MGT_BASE + 0x12)
#define RS_CFG_SAVE         (RS_MGT_BASE + 0x14)
#define RS_PART_LAST        (RS_MGT_BASE + 0x18)
#define RS_ELEM_INVALID     (RS_MGT_BASE + 0x19)
#define RS_PART_MAPPED      (RS_MGT_BASE + 0x1A)
#define RS_PART_TARGET      (RS_MGT_BASE + 0x1B)
#define RS_PART_LUN         (RS_MGT_BASE + 0x1C)
#define RS_PART_DUP         (RS_MGT_BASE + 0x1D)
#define RS_PART_NOMAP       (RS_MGT_BASE + 0x1E)
#define RS_PART_MAX         (RS_MGT_BASE + 0x1F)
#define RS_PART_CAP         (RS_MGT_BASE + 0x20)
#define RS_PART_STATE       (RS_MGT_BASE + 0x21)
#define RS_TEST_IN_PROG     (RS_MGT_BASE + 0x22)
#define RS_METRICS_ERROR    (RS_MGT_BASE + 0x23)
#define RS_HS_ERROR         (RS_MGT_BASE + 0x24)
#define RS_NO_METRICS_TEST  (RS_MGT_BASE + 0x25)
#define RS_BAD_PARAM        (RS_MGT_BASE + 0x26)
#define RS_GRP_MEMBER_SIZE  (RS_MGT_BASE + 0x27)
#define RS_FLS_BASE         0xB0        /*! base of VDA errors               */
#define RS_FLS_ERR_AREA     (RS_FLS_BASE + 0x00)
#define RS_FLS_ERR_BUSY     (RS_FLS_BASE + 0x01)
#define RS_FLS_ERR_RANGE    (RS_FLS_BASE + 0x02)
#define RS_FLS_ERR_BEGIN    (RS_FLS_BASE + 0x03)
#define RS_FLS_ERR_CHECK    (RS_FLS_BASE + 0x04)
#define RS_FLS_ERR_FAIL     (RS_FLS_BASE + 0x05)
#define RS_FLS_ERR_RSRC     (RS_FLS_BASE + 0x06)
#define RS_FLS_ERR_NOFILE   (RS_FLS_BASE + 0x07)
#define RS_FLS_ERR_FSIZE    (RS_FLS_BASE + 0x08)
#define RS_CFG_BASE         0xC0        /*! base of VDA configuration errors */
#define RS_CFG_ERR_BUSY     (RS_CFG_BASE + 0)
#define RS_CFG_ERR_SGE      (RS_CFG_BASE + 1)
#define RS_CFG_ERR_DATE     (RS_CFG_BASE + 2)
#define RS_CFG_ERR_TIME     (RS_CFG_BASE + 3)
#define RS_DEGRADED         0xFB        /*! degraded mode                    */
#define RS_CLI_INTERNAL     0xFC        /*! VDA CLI internal error           */
#define RS_VDA_INTERNAL     0xFD        /*! catch-all                        */
#define RS_PENDING          0xFE        /*! pending, not started             */
#define RS_STARTED          0xFF        /*! started                          */


/* flash request subfunctions.  these are used in both the IOCTL and the
 * driver-firmware interface (VDA_FUNC_FLASH). */

#define VDA_FLASH_BEGINW  0x00
#define VDA_FLASH_READ    0x01
#define VDA_FLASH_WRITE   0x02
#define VDA_FLASH_COMMIT  0x03
#define VDA_FLASH_CANCEL  0x04
#define VDA_FLASH_INFO    0x05
#define VDA_FLASH_FREAD   0x06
#define VDA_FLASH_FWRITE  0x07
#define VDA_FLASH_FINFO   0x08


/* IOCTL request subfunctions.  these identify the payload type for
 * VDA_FUNC_IOCTL.
 */

#define VDA_IOCTL_HBA     0x00
#define VDA_IOCTL_CSMI    0x01
#define VDA_IOCTL_SMP     0x02

struct __packed atto_vda_devinfo {
	struct atto_dev_addr dev_addr;
	u8 vendor_id[8];
	u8 product_id[16];
	u8 revision[4];
	u64 capacity;
	u32 block_size;
	u8 dev_type;

	union {
		u8 dev_status;
	    #define VDADEVSTAT_INVALID   0x00
	    #define VDADEVSTAT_CORRUPT   VDADEVSTAT_INVALID
	    #define VDADEVSTAT_ASSIGNED  0x01
	    #define VDADEVSTAT_SPARE     0x02
	    #define VDADEVSTAT_UNAVAIL   0x03
	    #define VDADEVSTAT_PT_MAINT  0x04
	    #define VDADEVSTAT_LCLSPARE  0x05
	    #define VDADEVSTAT_UNUSEABLE 0x06
	    #define VDADEVSTAT_AVAIL     0xFF

		u8 op_ctrl;
	    #define VDA_DEV_OP_CTRL_START   0x01
	    #define VDA_DEV_OP_CTRL_HALT    0x02
	    #define VDA_DEV_OP_CTRL_RESUME  0x03
	    #define VDA_DEV_OP_CTRL_CANCEL  0x04
	};

	u8 member_state;
	#define VDAMBRSTATE_ONLINE   0x00
	#define VDAMBRSTATE_DEGRADED 0x01
	#define VDAMBRSTATE_UNAVAIL  0x02
	#define VDAMBRSTATE_FAULTED  0x03
	#define VDAMBRSTATE_MISREAD  0x04
	#define VDAMBRSTATE_INCOMPAT 0x05

	u8 operation;
	#define VDAOP_NONE           0x00
	#define VDAOP_REBUILD        0x01
	#define VDAOP_ERASE          0x02
	#define VDAOP_PATTERN        0x03
	#define VDAOP_CONVERSION     0x04
	#define VDAOP_FULL_INIT      0x05
	#define VDAOP_QUICK_INIT     0x06
	#define VDAOP_SECT_SCAN      0x07
	#define VDAOP_SECT_SCAN_PARITY      0x08
	#define VDAOP_SECT_SCAN_PARITY_FIX  0x09
	#define VDAOP_RECOV_REBUILD  0x0A

	u8 op_status;
	#define VDAOPSTAT_OK         0x00
	#define VDAOPSTAT_FAULTED    0x01
	#define VDAOPSTAT_HALTED     0x02
	#define VDAOPSTAT_INT        0x03

	u8 progress; /* 0 - 100% */
	u16 ses_dev_index;
	#define VDASESDI_INVALID     0xFFFF

	u8 serial_no[32];

	union {
		u16 target_id;
	#define VDATGTID_INVALID     0xFFFF

		u16 features_mask;
	};

	u16 lun;
	u16 features;
	#define VDADEVFEAT_ENC_SERV  0x0001
	#define VDADEVFEAT_IDENT     0x0002
	#define VDADEVFEAT_DH_SUPP   0x0004
	#define VDADEVFEAT_PHYS_ID   0x0008

	u8 ses_element_id;
	u8 link_speed;
	#define VDALINKSPEED_UNKNOWN 0x00
	#define VDALINKSPEED_1GB     0x01
	#define VDALINKSPEED_1_5GB   0x02
	#define VDALINKSPEED_2GB     0x03
	#define VDALINKSPEED_3GB     0x04
	#define VDALINKSPEED_4GB     0x05
	#define VDALINKSPEED_6GB     0x06
	#define VDALINKSPEED_8GB     0x07

	u16 phys_target_id;
	u8 reserved[2];
};


/*! struct atto_vda_devinfo2 is a replacement for atto_vda_devinfo.  it
 * extends beyond the 0x70 bytes allowed in atto_vda_mgmt_req; therefore,
 * the entire structure is DMaed between the firmware and host buffer and
 * the data will always be in little endian format.
 */

struct __packed atto_vda_devinfo2 {
	struct atto_dev_addr dev_addr;
	u8 vendor_id[8];
	u8 product_id[16];
	u8 revision[4];
	u64 capacity;
	u32 block_size;
	u8 dev_type;
	u8 dev_status;
	u8 member_state;
	u8 operation;
	u8 op_status;
	u8 progress;
	u16 ses_dev_index;
	u8 serial_no[32];
	union {
		u16 target_id;
		u16 features_mask;
	};

	u16 lun;
	u16 features;
	u8 ses_element_id;
	u8 link_speed;
	u16 phys_target_id;
	u8 reserved[2];

/* This is where fields specific to struct atto_vda_devinfo2 begin.  Note
 * that the structure version started at one so applications that unionize this
 * structure with atto_vda_dev_info can differentiate them if desired.
 */

	u8 version;
	#define VDADEVINFO_VERSION0         0x00
	#define VDADEVINFO_VERSION1         0x01
	#define VDADEVINFO_VERSION2         0x02
	#define VDADEVINFO_VERSION3         0x03
	#define VDADEVINFO_VERSION          VDADEVINFO_VERSION3

	u8 reserved2[3];

	/* sector scanning fields */

	u32 ss_curr_errors;
	u64 ss_curr_scanned;
	u32 ss_curr_recvrd;
	u32 ss_scan_length;
	u32 ss_total_errors;
	u32 ss_total_recvrd;
	u32 ss_num_scans;

	/* grp_name was added in version 2 of this structure. */

	char grp_name[15];
	u8 reserved3[4];

	/* dev_addr_list was added in version 3 of this structure. */

	u8 num_dev_addr;
	struct atto_dev_addr2 dev_addr_list[8];
};


struct __packed atto_vda_grp_info {
	u8 grp_index;
	#define VDA_MAX_RAID_GROUPS         32

	char grp_name[15];
	u64 capacity;
	u32 block_size;
	u32 interleave;
	u8 type;
	#define VDA_GRP_TYPE_RAID0          0
	#define VDA_GRP_TYPE_RAID1          1
	#define VDA_GRP_TYPE_RAID4          4
	#define VDA_GRP_TYPE_RAID5          5
	#define VDA_GRP_TYPE_RAID6          6
	#define VDA_GRP_TYPE_RAID10         10
	#define VDA_GRP_TYPE_RAID40         40
	#define VDA_GRP_TYPE_RAID50         50
	#define VDA_GRP_TYPE_RAID60         60
	#define VDA_GRP_TYPE_DVRAID_HS      252
	#define VDA_GRP_TYPE_DVRAID_NOHS    253
	#define VDA_GRP_TYPE_JBOD           254
	#define VDA_GRP_TYPE_SPARE          255

	union {
		u8 status;
	    #define VDA_GRP_STAT_INVALID  0x00
	    #define VDA_GRP_STAT_NEW      0x01
	    #define VDA_GRP_STAT_WAITING  0x02
	    #define VDA_GRP_STAT_ONLINE   0x03
	    #define VDA_GRP_STAT_DEGRADED 0x04
	    #define VDA_GRP_STAT_OFFLINE  0x05
	    #define VDA_GRP_STAT_DELETED  0x06
	    #define VDA_GRP_STAT_RECOV_BASIC    0x07
	    #define VDA_GRP_STAT_RECOV_EXTREME  0x08

		u8 op_ctrl;
	    #define VDA_GRP_OP_CTRL_START   0x01
	    #define VDA_GRP_OP_CTRL_HALT    0x02
	    #define VDA_GRP_OP_CTRL_RESUME  0x03
	    #define VDA_GRP_OP_CTRL_CANCEL  0x04
	};

	u8 rebuild_state;
	#define VDA_RBLD_NONE      0x00
	#define VDA_RBLD_REBUILD   0x01
	#define VDA_RBLD_ERASE     0x02
	#define VDA_RBLD_PATTERN   0x03
	#define VDA_RBLD_CONV      0x04
	#define VDA_RBLD_FULL_INIT 0x05
	#define VDA_RBLD_QUICK_INIT 0x06
	#define VDA_RBLD_SECT_SCAN 0x07
	#define VDA_RBLD_SECT_SCAN_PARITY     0x08
	#define VDA_RBLD_SECT_SCAN_PARITY_FIX 0x09
	#define VDA_RBLD_RECOV_REBUILD 0x0A
	#define VDA_RBLD_RECOV_BASIC   0x0B
	#define VDA_RBLD_RECOV_EXTREME 0x0C

	u8 span_depth;
	u8 progress;
	u8 mirror_width;
	u8 stripe_width;
	u8 member_cnt;

	union {
		u16 members[32];
	#define VDA_MEMBER_MISSING  0xFFFF
	#define VDA_MEMBER_NEW      0xFFFE
		u16 features_mask;
	};

	u16 features;
	#define VDA_GRP_FEAT_HOTSWAP    0x0001
	#define VDA_GRP_FEAT_SPDRD_MASK 0x0006
	#define VDA_GRP_FEAT_SPDRD_DIS  0x0000
	#define VDA_GRP_FEAT_SPDRD_ENB  0x0002
	#define VDA_GRP_FEAT_SPDRD_AUTO 0x0004
	#define VDA_GRP_FEAT_IDENT      0x0008
	#define VDA_GRP_FEAT_RBLDPRI_MASK 0x0030
	#define VDA_GRP_FEAT_RBLDPRI_LOW  0x0010
	#define VDA_GRP_FEAT_RBLDPRI_SAME 0x0020
	#define VDA_GRP_FEAT_RBLDPRI_HIGH 0x0030
	#define VDA_GRP_FEAT_WRITE_CACHE  0x0040
	#define VDA_GRP_FEAT_RBLD_RESUME  0x0080
	#define VDA_GRP_FEAT_SECT_RESUME  0x0100
	#define VDA_GRP_FEAT_INIT_RESUME  0x0200
	#define VDA_GRP_FEAT_SSD          0x0400
	#define VDA_GRP_FEAT_BOOT_DEV     0x0800

	/*
	 * for backward compatibility, a prefetch value of zero means the
	 * setting is ignored/unsupported.  therefore, the firmware supported
	 * 0-6 values are incremented to 1-7.
	 */

	u8 prefetch;
	u8 op_status;
	#define VDAGRPOPSTAT_MASK       0x0F
	#define VDAGRPOPSTAT_INVALID    0x00
	#define VDAGRPOPSTAT_OK         0x01
	#define VDAGRPOPSTAT_FAULTED    0x02
	#define VDAGRPOPSTAT_HALTED     0x03
	#define VDAGRPOPSTAT_INT        0x04
	#define VDAGRPOPPROC_MASK       0xF0
	#define VDAGRPOPPROC_STARTABLE  0x10
	#define VDAGRPOPPROC_CANCELABLE 0x20
	#define VDAGRPOPPROC_RESUMABLE  0x40
	#define VDAGRPOPPROC_HALTABLE   0x80
	u8 over_provision;
	u8 reserved[3];

};


struct __packed atto_vdapart_info {
	u8 part_no;
	#define VDA_MAX_PARTITIONS   128

	char grp_name[15];
	u64 part_size;
	u64 start_lba;
	u32 block_size;
	u16 target_id;
	u8 LUN;
	char serial_no[41];
	u8 features;
	#define VDAPI_FEAT_WRITE_CACHE   0x01

	u8 reserved[7];
};


struct __packed atto_vda_dh_info {
	u8 req_type;
	#define VDADH_RQTYPE_CACHE      0x01
	#define VDADH_RQTYPE_FETCH      0x02
	#define VDADH_RQTYPE_SET_STAT   0x03
	#define VDADH_RQTYPE_GET_STAT   0x04

	u8 req_qual;
	#define VDADH_RQQUAL_SMART      0x01
	#define VDADH_RQQUAL_MEDDEF     0x02
	#define VDADH_RQQUAL_INFOEXC    0x04

	u8 num_smart_attribs;
	u8 status;
	#define VDADH_STAT_DISABLE      0x00
	#define VDADH_STAT_ENABLE       0x01

	u32 med_defect_cnt;
	u32 info_exc_cnt;
	u8 smart_status;
	#define VDADH_SMARTSTAT_OK      0x00
	#define VDADH_SMARTSTAT_ERR     0x01

	u8 reserved[35];
	struct atto_vda_sge sge[1];
};


struct __packed atto_vda_dh_smart {
	u8 attrib_id;
	u8 current_val;
	u8 worst;
	u8 threshold;
	u8 raw_data[6];
	u8 raw_attrib_status;
	#define VDADHSM_RAWSTAT_PREFAIL_WARRANTY        0x01
	#define VDADHSM_RAWSTAT_ONLINE_COLLECTION       0x02
	#define VDADHSM_RAWSTAT_PERFORMANCE_ATTR        0x04
	#define VDADHSM_RAWSTAT_ERROR_RATE_ATTR         0x08
	#define VDADHSM_RAWSTAT_EVENT_COUNT_ATTR        0x10
	#define VDADHSM_RAWSTAT_SELF_PRESERVING_ATTR    0x20

	u8 calc_attrib_status;
	#define VDADHSM_CALCSTAT_UNKNOWN                0x00
	#define VDADHSM_CALCSTAT_GOOD                   0x01
	#define VDADHSM_CALCSTAT_PREFAIL                0x02
	#define VDADHSM_CALCSTAT_OLDAGE                 0x03

	u8 reserved[4];
};


struct __packed atto_vda_metrics_info {
	u8 data_version;
	#define VDAMET_VERSION0         0x00
	#define VDAMET_VERSION          VDAMET_VERSION0

	u8 metrics_action;
	#define VDAMET_METACT_NONE      0x00
	#define VDAMET_METACT_START     0x01
	#define VDAMET_METACT_STOP      0x02
	#define VDAMET_METACT_RETRIEVE  0x03
	#define VDAMET_METACT_CLEAR     0x04

	u8 test_action;
	#define VDAMET_TSTACT_NONE              0x00
	#define VDAMET_TSTACT_STRT_INIT         0x01
	#define VDAMET_TSTACT_STRT_READ         0x02
	#define VDAMET_TSTACT_STRT_VERIFY       0x03
	#define VDAMET_TSTACT_STRT_INIT_VERIFY  0x04
	#define VDAMET_TSTACT_STOP              0x05

	u8 num_dev_indexes;
	#define VDAMET_ALL_DEVICES      0xFF

	u16 dev_indexes[32];
	u8 reserved[12];
	struct atto_vda_sge sge[1];
};


struct __packed atto_vda_metrics_data {
	u16 dev_index;
	u16 length;
	#define VDAMD_LEN_LAST          0x8000
	#define VDAMD_LEN_MASK          0x0FFF

	u32 flags;
	#define VDAMDF_RUN          0x00000007
	#define VDAMDF_RUN_READ     0x00000001
	#define VDAMDF_RUN_WRITE    0x00000002
	#define VDAMDF_RUN_ALL      0x00000004
	#define VDAMDF_READ         0x00000010
	#define VDAMDF_WRITE        0x00000020
	#define VDAMDF_ALL          0x00000040
	#define VDAMDF_DRIVETEST    0x40000000
	#define VDAMDF_NEW          0x80000000

	u64 total_read_data;
	u64 total_write_data;
	u64 total_read_io;
	u64 total_write_io;
	u64 read_start_time;
	u64 read_stop_time;
	u64 write_start_time;
	u64 write_stop_time;
	u64 read_maxio_time;
	u64 wpvdadmetricsdatarite_maxio_time;
	u64 read_totalio_time;
	u64 write_totalio_time;
	u64 read_total_errs;
	u64 write_total_errs;
	u64 read_recvrd_errs;
	u64 write_recvrd_errs;
	u64 miscompares;
};


struct __packed atto_vda_schedule_info {
	u8 schedule_type;
	#define VDASI_SCHTYPE_ONETIME   0x01
	#define VDASI_SCHTYPE_DAILY     0x02
	#define VDASI_SCHTYPE_WEEKLY    0x03

	u8 operation;
	#define VDASI_OP_NONE           0x00
	#define VDASI_OP_CREATE         0x01
	#define VDASI_OP_CANCEL         0x02

	u8 hour;
	u8 minute;
	u8 day;
	#define VDASI_DAY_NONE          0x00

	u8 progress;
	#define VDASI_PROG_NONE         0xFF

	u8 event_type;
	#define VDASI_EVTTYPE_SECT_SCAN             0x01
	#define VDASI_EVTTYPE_SECT_SCAN_PARITY      0x02
	#define VDASI_EVTTYPE_SECT_SCAN_PARITY_FIX  0x03

	u8 recurrences;
	#define VDASI_RECUR_FOREVER     0x00

	u32 id;
	#define VDASI_ID_NONE           0x00

	char grp_name[15];
	u8 reserved[85];
};


struct __packed atto_vda_n_vcache_info {
	u8 super_cap_status;
	#define VDANVCI_SUPERCAP_NOT_PRESENT       0x00
	#define VDANVCI_SUPERCAP_FULLY_CHARGED     0x01
	#define VDANVCI_SUPERCAP_NOT_CHARGED       0x02

	u8 nvcache_module_status;
	#define VDANVCI_NVCACHEMODULE_NOT_PRESENT  0x00
	#define VDANVCI_NVCACHEMODULE_PRESENT      0x01

	u8 protection_mode;
	#define VDANVCI_PROTMODE_HI_PROTECT        0x00
	#define VDANVCI_PROTMODE_HI_PERFORM        0x01

	u8 reserved[109];
};


struct __packed atto_vda_buzzer_info {
	u8 status;
	#define VDABUZZI_BUZZER_OFF           0x00
	#define VDABUZZI_BUZZER_ON            0x01
	#define VDABUZZI_BUZZER_LAST          0x02

	u8 reserved[3];
	u32 duration;
	#define VDABUZZI_DURATION_INDEFINITE  0xffffffff

	u8 reserved2[104];
};


struct  __packed atto_vda_adapter_info {
	u8 version;
	#define VDAADAPINFO_VERSION0         0x00
	#define VDAADAPINFO_VERSION          VDAADAPINFO_VERSION0

	u8 reserved;
	signed short utc_offset;
	u32 utc_time;
	u32 features;
	#define VDA_ADAP_FEAT_IDENT     0x0001
	#define VDA_ADAP_FEAT_BUZZ_ERR  0x0002
	#define VDA_ADAP_FEAT_UTC_TIME  0x0004

	u32 valid_features;
	char active_config[33];
	u8 temp_count;
	u8 fan_count;
	u8 reserved3[61];
};


struct __packed atto_vda_temp_info {
	u8 temp_index;
	u8 max_op_temp;
	u8 min_op_temp;
	u8 op_temp_warn;
	u8 temperature;
	u8 type;
	#define VDA_TEMP_TYPE_CPU  1

	u8 reserved[106];
};


struct __packed atto_vda_fan_info {
	u8 fan_index;
	u8 status;
	#define VDA_FAN_STAT_UNKNOWN 0
	#define VDA_FAN_STAT_NORMAL  1
	#define VDA_FAN_STAT_FAIL    2

	u16 crit_pvdafaninfothreshold;
	u16 warn_threshold;
	u16 speed;
	u8 reserved[104];
};


/* VDA management commands */

#define VDAMGT_DEV_SCAN         0x00
#define VDAMGT_DEV_INFO         0x01
#define VDAMGT_DEV_CLEAN        0x02
#define VDAMGT_DEV_IDENTIFY     0x03
#define VDAMGT_DEV_IDENTSTOP    0x04
#define VDAMGT_DEV_PT_INFO      0x05
#define VDAMGT_DEV_FEATURES     0x06
#define VDAMGT_DEV_PT_FEATURES  0x07
#define VDAMGT_DEV_HEALTH_REQ   0x08
#define VDAMGT_DEV_METRICS      0x09
#define VDAMGT_DEV_INFO2        0x0A
#define VDAMGT_DEV_OPERATION    0x0B
#define VDAMGT_DEV_INFO2_BYADDR 0x0C
#define VDAMGT_GRP_INFO         0x10
#define VDAMGT_GRP_CREATE       0x11
#define VDAMGT_GRP_DELETE       0x12
#define VDAMGT_ADD_STORAGE      0x13
#define VDAMGT_MEMBER_ADD       0x14
#define VDAMGT_GRP_COMMIT       0x15
#define VDAMGT_GRP_REBUILD      0x16
#define VDAMGT_GRP_COMMIT_INIT  0x17
#define VDAMGT_QUICK_RAID       0x18
#define VDAMGT_GRP_FEATURES     0x19
#define VDAMGT_GRP_COMMIT_INIT_AUTOMAP  0x1A
#define VDAMGT_QUICK_RAID_INIT_AUTOMAP  0x1B
#define VDAMGT_GRP_OPERATION    0x1C
#define VDAMGT_CFG_SAVE         0x20
#define VDAMGT_LAST_ERROR       0x21
#define VDAMGT_ADAP_INFO        0x22
#define VDAMGT_ADAP_FEATURES    0x23
#define VDAMGT_TEMP_INFO        0x24
#define VDAMGT_FAN_INFO         0x25
#define VDAMGT_PART_INFO        0x30
#define VDAMGT_PART_MAP         0x31
#define VDAMGT_PART_UNMAP       0x32
#define VDAMGT_PART_AUTOMAP     0x33
#define VDAMGT_PART_SPLIT       0x34
#define VDAMGT_PART_MERGE       0x35
#define VDAMGT_SPARE_LIST       0x40
#define VDAMGT_SPARE_ADD        0x41
#define VDAMGT_SPARE_REMOVE     0x42
#define VDAMGT_LOCAL_SPARE_ADD  0x43
#define VDAMGT_SCHEDULE_EVENT   0x50
#define VDAMGT_SCHEDULE_INFO    0x51
#define VDAMGT_NVCACHE_INFO     0x60
#define VDAMGT_NVCACHE_SET      0x61
#define VDAMGT_BUZZER_INFO      0x70
#define VDAMGT_BUZZER_SET       0x71


struct __packed atto_vda_ae_hdr {
	u8 bylength;
	u8 byflags;
	#define VDAAE_HDRF_EVENT_ACK    0x01

	u8 byversion;
	#define VDAAE_HDR_VER_0         0

	u8 bytype;
	#define VDAAE_HDR_TYPE_RAID     1
	#define VDAAE_HDR_TYPE_LU       2
	#define VDAAE_HDR_TYPE_DISK     3
	#define VDAAE_HDR_TYPE_RESET    4
	#define VDAAE_HDR_TYPE_LOG_INFO 5
	#define VDAAE_HDR_TYPE_LOG_WARN 6
	#define VDAAE_HDR_TYPE_LOG_CRIT 7
	#define VDAAE_HDR_TYPE_LOG_FAIL 8
	#define VDAAE_HDR_TYPE_NVC      9
	#define VDAAE_HDR_TYPE_TLG_INFO 10
	#define VDAAE_HDR_TYPE_TLG_WARN 11
	#define VDAAE_HDR_TYPE_TLG_CRIT 12
	#define VDAAE_HDR_TYPE_PWRMGT   13
	#define VDAAE_HDR_TYPE_MUTE     14
	#define VDAAE_HDR_TYPE_DEV      15
};


struct  __packed atto_vda_ae_raid {
	struct atto_vda_ae_hdr hdr;
	u32 dwflags;
	#define VDAAE_GROUP_STATE   0x00000001
	#define VDAAE_RBLD_STATE    0x00000002
	#define VDAAE_RBLD_PROG     0x00000004
	#define VDAAE_MEMBER_CHG    0x00000008
	#define VDAAE_PART_CHG      0x00000010
	#define VDAAE_MEM_STATE_CHG 0x00000020

	u8 bygroup_state;
	#define VDAAE_RAID_INVALID  0
	#define VDAAE_RAID_NEW      1
	#define VDAAE_RAID_WAITING  2
	#define VDAAE_RAID_ONLINE   3
	#define VDAAE_RAID_DEGRADED 4
	#define VDAAE_RAID_OFFLINE  5
	#define VDAAE_RAID_DELETED  6
	#define VDAAE_RAID_BASIC    7
	#define VDAAE_RAID_EXTREME  8
	#define VDAAE_RAID_UNKNOWN  9

	u8 byrebuild_state;
	#define VDAAE_RBLD_NONE       0
	#define VDAAE_RBLD_REBUILD    1
	#define VDAAE_RBLD_ERASE      2
	#define VDAAE_RBLD_PATTERN    3
	#define VDAAE_RBLD_CONV       4
	#define VDAAE_RBLD_FULL_INIT  5
	#define VDAAE_RBLD_QUICK_INIT 6
	#define VDAAE_RBLD_SECT_SCAN  7
	#define VDAAE_RBLD_SECT_SCAN_PARITY     8
	#define VDAAE_RBLD_SECT_SCAN_PARITY_FIX 9
	#define VDAAE_RBLD_RECOV_REBUILD 10
	#define VDAAE_RBLD_UNKNOWN    11

	u8 byrebuild_progress;
	u8 op_status;
	#define VDAAE_GRPOPSTAT_MASK       0x0F
	#define VDAAE_GRPOPSTAT_INVALID    0x00
	#define VDAAE_GRPOPSTAT_OK         0x01
	#define VDAAE_GRPOPSTAT_FAULTED    0x02
	#define VDAAE_GRPOPSTAT_HALTED     0x03
	#define VDAAE_GRPOPSTAT_INT        0x04
	#define VDAAE_GRPOPPROC_MASK       0xF0
	#define VDAAE_GRPOPPROC_STARTABLE  0x10
	#define VDAAE_GRPOPPROC_CANCELABLE 0x20
	#define VDAAE_GRPOPPROC_RESUMABLE  0x40
	#define VDAAE_GRPOPPROC_HALTABLE   0x80
	char acname[15];
	u8 byreserved;
	u8 byreserved2[0x80 - 0x1C];
};


struct __packed atto_vda_ae_lu_tgt_lun {
	u16 wtarget_id;
	u8 bylun;
	u8 byreserved;
};


struct __packed atto_vda_ae_lu_tgt_lun_raid {
	u16 wtarget_id;
	u8 bylun;
	u8 byreserved;
	u32 dwinterleave;
	u32 dwblock_size;
};


struct __packed atto_vda_ae_lu {
	struct atto_vda_ae_hdr hdr;
	u32 dwevent;
	#define VDAAE_LU_DISC        0x00000001
	#define VDAAE_LU_LOST        0x00000002
	#define VDAAE_LU_STATE       0x00000004
	#define VDAAE_LU_PASSTHROUGH 0x10000000
	#define VDAAE_LU_PHYS_ID     0x20000000

	u8 bystate;
	#define VDAAE_LU_UNDEFINED        0
	#define VDAAE_LU_NOT_PRESENT      1
	#define VDAAE_LU_OFFLINE          2
	#define VDAAE_LU_ONLINE           3
	#define VDAAE_LU_DEGRADED         4
	#define VDAAE_LU_FACTORY_DISABLED 5
	#define VDAAE_LU_DELETED          6
	#define VDAAE_LU_BUSSCAN          7
	#define VDAAE_LU_UNKNOWN          8

	u8 byreserved;
	u16 wphys_target_id;

	union {
		struct atto_vda_ae_lu_tgt_lun tgtlun;
		struct atto_vda_ae_lu_tgt_lun_raid tgtlun_raid;
	} id;
};


struct __packed atto_vda_ae_disk {
	struct atto_vda_ae_hdr hdr;
};


#define VDAAE_LOG_STRSZ 64

struct __packed atto_vda_ae_log {
	struct atto_vda_ae_hdr hdr;
	char aclog_ascii[VDAAE_LOG_STRSZ];
};


#define VDAAE_TLG_STRSZ 56

struct __packed atto_vda_ae_timestamp_log {
	struct atto_vda_ae_hdr hdr;
	u32 dwtimestamp;
	char aclog_ascii[VDAAE_TLG_STRSZ];
};


struct __packed atto_vda_ae_nvc {
	struct atto_vda_ae_hdr hdr;
};


struct __packed atto_vda_ae_dev {
	struct atto_vda_ae_hdr hdr;
	struct atto_dev_addr devaddr;
};


union atto_vda_ae {
	struct atto_vda_ae_hdr hdr;
	struct atto_vda_ae_disk disk;
	struct atto_vda_ae_lu lu;
	struct atto_vda_ae_raid raid;
	struct atto_vda_ae_log log;
	struct atto_vda_ae_timestamp_log tslog;
	struct atto_vda_ae_nvc nvcache;
	struct atto_vda_ae_dev dev;
};


struct __packed atto_vda_date_and_time {
	u8 flags;
	#define VDA_DT_DAY_MASK   0x07
	#define VDA_DT_DAY_NONE   0x00
	#define VDA_DT_DAY_SUN    0x01
	#define VDA_DT_DAY_MON    0x02
	#define VDA_DT_DAY_TUE    0x03
	#define VDA_DT_DAY_WED    0x04
	#define VDA_DT_DAY_THU    0x05
	#define VDA_DT_DAY_FRI    0x06
	#define VDA_DT_DAY_SAT    0x07
	#define VDA_DT_PM         0x40
	#define VDA_DT_MILITARY   0x80

	u8 seconds;
	u8 minutes;
	u8 hours;
	u8 day;
	u8 month;
	u16 year;
};

#define SGE_LEN_LIMIT   0x003FFFFF      /*! mask of segment length            */
#define SGE_LEN_MAX     0x003FF000      /*! maximum segment length            */
#define SGE_LAST        0x01000000      /*! last entry                        */
#define SGE_ADDR_64     0x04000000      /*! 64-bit addressing flag            */
#define SGE_CHAIN       0x80000000      /*! chain descriptor flag             */
#define SGE_CHAIN_LEN   0x0000FFFF      /*! mask of length in chain entries   */
#define SGE_CHAIN_SZ    0x00FF0000      /*! mask of size of chained buffer    */


struct __packed atto_vda_cfg_init {
	struct atto_vda_date_and_time date_time;
	u32 sgl_page_size;
	u32 vda_version;
	u32 fw_version;
	u32 fw_build;
	u32 fw_release;
	u32 epoch_time;
	u32 ioctl_tunnel;
	#define VDA_ITF_MEM_RW           0x00000001
	#define VDA_ITF_TRACE            0x00000002
	#define VDA_ITF_SCSI_PASS_THRU   0x00000004
	#define VDA_ITF_GET_DEV_ADDR     0x00000008
	#define VDA_ITF_PHY_CTRL         0x00000010
	#define VDA_ITF_CONN_CTRL        0x00000020
	#define VDA_ITF_GET_DEV_INFO     0x00000040

	u32 num_targets_backend;
	u8 reserved[0x48];
};


/* configuration commands */

#define VDA_CFG_INIT          0x00
#define VDA_CFG_GET_INIT      0x01
#define VDA_CFG_GET_INIT2     0x02


/*! physical region descriptor (PRD) aka scatter/gather entry */

struct __packed atto_physical_region_description {
	u64 address;
	u32 ctl_len;
	#define PRD_LEN_LIMIT       0x003FFFFF
	#define PRD_LEN_MAX         0x003FF000
	#define PRD_NXT_PRD_CNT     0x0000007F
	#define PRD_CHAIN           0x01000000
	#define PRD_DATA            0x00000000
	#define PRD_INT_SEL         0xF0000000
	  #define PRD_INT_SEL_F0    0x00000000
	  #define PRD_INT_SEL_F1    0x40000000
	  #define PRD_INT_SEL_F2    0x80000000
	  #define PRD_INT_SEL_F3    0xc0000000
	  #define PRD_INT_SEL_SRAM  0x10000000
	  #define PRD_INT_SEL_PBSR  0x20000000

};

/* Request types. NOTE that ALL requests have the same layout for the first
 * few bytes.
 */
struct __packed atto_vda_req_header {
	u32 length;
	u8 function;
	u8 variable1;
	u8 chain_offset;
	u8 sg_list_offset;
	u32 handle;
};


#define FCP_CDB_SIZE    16

struct __packed atto_vda_scsi_req {
	u32 length;
	u8 function;  /* VDA_FUNC_SCSI */
	u8 sense_len;
	u8 chain_offset;
	u8 sg_list_offset;
	u32 handle;
	u32 flags;
     #define FCP_CMND_LUN_MASK    0x000000FF
     #define FCP_CMND_TA_MASK     0x00000700
      #define FCP_CMND_TA_SIMPL_Q 0x00000000
      #define FCP_CMND_TA_HEAD_Q  0x00000100
      #define FCP_CMND_TA_ORDRD_Q 0x00000200
      #define FCP_CMND_TA_ACA     0x00000400
     #define FCP_CMND_PRI_MASK    0x00007800
     #define FCP_CMND_TM_MASK     0x00FF0000
      #define FCP_CMND_ATS        0x00020000
      #define FCP_CMND_CTS        0x00040000
      #define FCP_CMND_LRS        0x00100000
      #define FCP_CMND_TRS        0x00200000
      #define FCP_CMND_CLA        0x00400000
      #define FCP_CMND_TRM        0x00800000
     #define FCP_CMND_DATA_DIR    0x03000000
      #define FCP_CMND_WRD        0x01000000
      #define FCP_CMND_RDD        0x02000000

	u8 cdb[FCP_CDB_SIZE];
	union {
		struct __packed {
			u64 ppsense_buf;
			u16 target_id;
			u8 iblk_cnt_prd;
			u8 reserved;
		};

		struct atto_physical_region_description sense_buff_prd;
	};

	union {
		struct atto_vda_sge sge[1];

		u32 abort_handle;
		u32 dwords[245];
		struct atto_physical_region_description prd[1];
	} u;
};


struct __packed atto_vda_flash_req {
	u32 length;
	u8 function; /* VDA_FUNC_FLASH */
	u8 sub_func;
	u8 chain_offset;
	u8 sg_list_offset;
	u32 handle;
	u32 flash_addr;
	u8 checksum;
	u8 rsvd[3];

	union {
		struct {
			char file_name[16]; /* 8.3 fname, NULL term, wc=* */
			struct atto_vda_sge sge[1];
		} file;

		struct atto_vda_sge sge[1];
		struct atto_physical_region_description prde[2];
	} data;
};


struct __packed atto_vda_diag_req {
	u32 length;
	u8 function; /* VDA_FUNC_DIAG */
	u8 sub_func;
	#define VDA_DIAG_STATUS   0x00
	#define VDA_DIAG_RESET    0x01
	#define VDA_DIAG_PAUSE    0x02
	#define VDA_DIAG_RESUME   0x03
	#define VDA_DIAG_READ     0x04
	#define VDA_DIAG_WRITE    0x05

	u8 chain_offset;
	u8 sg_list_offset;
	u32 handle;
	u32 rsvd;
	u64 local_addr;
	struct atto_vda_sge sge[1];
};


struct __packed atto_vda_ae_req {
	u32 length;
	u8 function; /* VDA_FUNC_AE */
	u8 reserved1;
	u8 chain_offset;
	u8 sg_list_offset;
	u32 handle;

	union {
		struct atto_vda_sge sge[1];
		struct atto_physical_region_description prde[1];
	};
};


struct __packed atto_vda_cli_req {
	u32 length;
	u8 function; /* VDA_FUNC_CLI */
	u8 reserved1;
	u8 chain_offset;
	u8 sg_list_offset;
	u32 handle;
	u32 cmd_rsp_len;
	struct atto_vda_sge sge[1];
};


struct __packed atto_vda_ioctl_req {
	u32 length;
	u8 function; /* VDA_FUNC_IOCTL */
	u8 sub_func;
	u8 chain_offset;
	u8 sg_list_offset;
	u32 handle;

	union {
		struct atto_vda_sge reserved_sge;
		struct atto_physical_region_description reserved_prde;
	};

	union {
		struct {
			u32 ctrl_code;
			u16 target_id;
			u8 lun;
			u8 reserved;
		} csmi;
	};

	union {
		struct atto_vda_sge sge[1];
		struct atto_physical_region_description prde[1];
	};
};


struct __packed atto_vda_cfg_req {
	u32 length;
	u8 function; /* VDA_FUNC_CFG */
	u8 sub_func;
	u8 rsvd1;
	u8 sg_list_offset;
	u32 handle;

	union {
		u8 bytes[116];
		struct atto_vda_cfg_init init;
		struct atto_vda_sge sge;
		struct atto_physical_region_description prde;
	} data;
};


struct __packed atto_vda_mgmt_req {
	u32 length;
	u8 function; /* VDA_FUNC_MGT */
	u8 mgt_func;
	u8 chain_offset;
	u8 sg_list_offset;
	u32 handle;
	u8 scan_generation;
	u8 payld_sglst_offset;
	u16 dev_index;
	u32 payld_length;
	u32 pad;
	union {
		struct atto_vda_sge sge[2];
		struct atto_physical_region_description prde[2];
	};
	struct atto_vda_sge payld_sge[1];
};


union atto_vda_req {
	struct atto_vda_scsi_req scsi;
	struct atto_vda_flash_req flash;
	struct atto_vda_diag_req diag;
	struct atto_vda_ae_req ae;
	struct atto_vda_cli_req cli;
	struct atto_vda_ioctl_req ioctl;
	struct atto_vda_cfg_req cfg;
	struct atto_vda_mgmt_req mgt;
	u8 bytes[1024];
};

/* Outbound response structures */

struct __packed atto_vda_scsi_rsp {
	u8 scsi_stat;
	u8 sense_len;
	u8 rsvd[2];
	u32 residual_length;
};

struct __packed atto_vda_flash_rsp {
	u32 file_size;
};

struct __packed atto_vda_ae_rsp {
	u32 length;
};

struct __packed atto_vda_cli_rsp {
	u32 cmd_rsp_len;
};

struct __packed atto_vda_ioctl_rsp {
	union {
		struct {
			u32 csmi_status;
			u16 target_id;
			u8 lun;
			u8 reserved;
		} csmi;
	};
};

struct __packed atto_vda_cfg_rsp {
	u16 vda_version;
	u16 fw_release;
	u32 fw_build;
};

struct __packed atto_vda_mgmt_rsp {
	u32 length;
	u16 dev_index;
	u8 scan_generation;
};

union atto_vda_func_rsp {
	struct atto_vda_scsi_rsp scsi_rsp;
	struct atto_vda_flash_rsp flash_rsp;
	struct atto_vda_ae_rsp ae_rsp;
	struct atto_vda_cli_rsp cli_rsp;
	struct atto_vda_ioctl_rsp ioctl_rsp;
	struct atto_vda_cfg_rsp cfg_rsp;
	struct atto_vda_mgmt_rsp mgt_rsp;
	u32 dwords[2];
};

struct __packed atto_vda_ob_rsp {
	u32 handle;
	u8 req_stat;
	u8 rsvd[3];

	union atto_vda_func_rsp
		func_rsp;
};

struct __packed atto_vda_ae_data {
	u8 event_data[256];
};

struct __packed atto_vda_mgmt_data {
	union {
		u8 bytes[112];
		struct atto_vda_devinfo dev_info;
		struct atto_vda_grp_info grp_info;
		struct atto_vdapart_info part_info;
		struct atto_vda_dh_info dev_health_info;
		struct atto_vda_metrics_info metrics_info;
		struct atto_vda_schedule_info sched_info;
		struct atto_vda_n_vcache_info nvcache_info;
		struct atto_vda_buzzer_info buzzer_info;
	} data;
};

union atto_vda_rsp_data {
	struct atto_vda_ae_data ae_data;
	struct atto_vda_mgmt_data mgt_data;
	u8 sense_data[252];
	#define SENSE_DATA_SZ   252;
	u8 bytes[256];
};

#endif