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7#ifndef __ISCSI_COMMON__
8#define __ISCSI_COMMON__
9
10
11
12
13
14
15#define ISCSI_DEFAULT_MTU (1500)
16
17
18#define ISCSI_SLOW_PATH_LAYER_CODE (6)
19
20
21#define ISCSI_DEFAULT_HEADER_DIGEST (0)
22#define ISCSI_DEFAULT_DATA_DIGEST (0)
23#define ISCSI_DEFAULT_INITIAL_R2T (1)
24#define ISCSI_DEFAULT_IMMEDIATE_DATA (1)
25#define ISCSI_DEFAULT_MAX_PDU_LENGTH (0x2000)
26#define ISCSI_DEFAULT_FIRST_BURST_LENGTH (0x10000)
27#define ISCSI_DEFAULT_MAX_BURST_LENGTH (0x40000)
28#define ISCSI_DEFAULT_MAX_OUTSTANDING_R2T (1)
29
30
31#define ISCSI_MIN_VAL_MAX_PDU_LENGTH (0x200)
32#define ISCSI_MAX_VAL_MAX_PDU_LENGTH (0xffffff)
33#define ISCSI_MIN_VAL_BURST_LENGTH (0x200)
34#define ISCSI_MAX_VAL_BURST_LENGTH (0xffffff)
35#define ISCSI_MIN_VAL_MAX_OUTSTANDING_R2T (1)
36#define ISCSI_MAX_VAL_MAX_OUTSTANDING_R2T (0xff)
37
38#define ISCSI_AHS_CNTL_SIZE 4
39
40#define ISCSI_WQE_NUM_SGES_SLOWIO (0xf)
41
42
43#define ISCSI_ITT_ALL_ONES (0xffffffff)
44#define ISCSI_TTT_ALL_ONES (0xffffffff)
45
46#define ISCSI_OPTION_1_OFF_CHIP_TCP 1
47#define ISCSI_OPTION_2_ON_CHIP_TCP 2
48
49#define ISCSI_INITIATOR_MODE 0
50#define ISCSI_TARGET_MODE 1
51
52
53#define ISCSI_OPCODE_NOP_OUT (0)
54#define ISCSI_OPCODE_SCSI_CMD (1)
55#define ISCSI_OPCODE_TMF_REQUEST (2)
56#define ISCSI_OPCODE_LOGIN_REQUEST (3)
57#define ISCSI_OPCODE_TEXT_REQUEST (4)
58#define ISCSI_OPCODE_DATA_OUT (5)
59#define ISCSI_OPCODE_LOGOUT_REQUEST (6)
60
61
62#define ISCSI_OPCODE_NOP_IN (0x20)
63#define ISCSI_OPCODE_SCSI_RESPONSE (0x21)
64#define ISCSI_OPCODE_TMF_RESPONSE (0x22)
65#define ISCSI_OPCODE_LOGIN_RESPONSE (0x23)
66#define ISCSI_OPCODE_TEXT_RESPONSE (0x24)
67#define ISCSI_OPCODE_DATA_IN (0x25)
68#define ISCSI_OPCODE_LOGOUT_RESPONSE (0x26)
69#define ISCSI_OPCODE_R2T (0x31)
70#define ISCSI_OPCODE_ASYNC_MSG (0x32)
71#define ISCSI_OPCODE_REJECT (0x3f)
72
73
74#define ISCSI_STAGE_SECURITY_NEGOTIATION (0)
75#define ISCSI_STAGE_LOGIN_OPERATIONAL_NEGOTIATION (1)
76#define ISCSI_STAGE_FULL_FEATURE_PHASE (3)
77
78
79#define CQE_ERROR_BITMAP_DATA_DIGEST (0x08)
80#define CQE_ERROR_BITMAP_RCV_ON_INVALID_CONN (0x10)
81#define CQE_ERROR_BITMAP_DATA_TRUNCATED (0x20)
82
83
84union bd_opaque_tq_union {
85 __le16 bd_opaque;
86 __le16 tq_tid;
87};
88
89
90struct cqe_error_bitmap {
91 u8 cqe_error_status_bits;
92#define CQE_ERROR_BITMAP_DIF_ERR_BITS_MASK 0x7
93#define CQE_ERROR_BITMAP_DIF_ERR_BITS_SHIFT 0
94#define CQE_ERROR_BITMAP_DATA_DIGEST_ERR_MASK 0x1
95#define CQE_ERROR_BITMAP_DATA_DIGEST_ERR_SHIFT 3
96#define CQE_ERROR_BITMAP_RCV_ON_INVALID_CONN_MASK 0x1
97#define CQE_ERROR_BITMAP_RCV_ON_INVALID_CONN_SHIFT 4
98#define CQE_ERROR_BITMAP_DATA_TRUNCATED_ERR_MASK 0x1
99#define CQE_ERROR_BITMAP_DATA_TRUNCATED_ERR_SHIFT 5
100#define CQE_ERROR_BITMAP_UNDER_RUN_ERR_MASK 0x1
101#define CQE_ERROR_BITMAP_UNDER_RUN_ERR_SHIFT 6
102#define CQE_ERROR_BITMAP_RESERVED2_MASK 0x1
103#define CQE_ERROR_BITMAP_RESERVED2_SHIFT 7
104};
105
106union cqe_error_status {
107 u8 error_status;
108 struct cqe_error_bitmap error_bits;
109};
110
111
112struct data_hdr {
113 __le32 data[12];
114};
115
116struct lun_mapper_addr_reserved {
117 struct regpair lun_mapper_addr;
118 u8 reserved0[8];
119};
120
121
122struct dif_on_immediate_params {
123 __le32 initial_ref_tag;
124 __le16 application_tag;
125 __le16 application_tag_mask;
126 __le16 flags1;
127#define DIF_ON_IMMEDIATE_PARAMS_VALIDATE_GUARD_MASK 0x1
128#define DIF_ON_IMMEDIATE_PARAMS_VALIDATE_GUARD_SHIFT 0
129#define DIF_ON_IMMEDIATE_PARAMS_VALIDATE_APP_TAG_MASK 0x1
130#define DIF_ON_IMMEDIATE_PARAMS_VALIDATE_APP_TAG_SHIFT 1
131#define DIF_ON_IMMEDIATE_PARAMS_VALIDATE_REF_TAG_MASK 0x1
132#define DIF_ON_IMMEDIATE_PARAMS_VALIDATE_REF_TAG_SHIFT 2
133#define DIF_ON_IMMEDIATE_PARAMS_FORWARD_GUARD_MASK 0x1
134#define DIF_ON_IMMEDIATE_PARAMS_FORWARD_GUARD_SHIFT 3
135#define DIF_ON_IMMEDIATE_PARAMS_FORWARD_APP_TAG_MASK 0x1
136#define DIF_ON_IMMEDIATE_PARAMS_FORWARD_APP_TAG_SHIFT 4
137#define DIF_ON_IMMEDIATE_PARAMS_FORWARD_REF_TAG_MASK 0x1
138#define DIF_ON_IMMEDIATE_PARAMS_FORWARD_REF_TAG_SHIFT 5
139#define DIF_ON_IMMEDIATE_PARAMS_INTERVAL_SIZE_MASK 0x1
140#define DIF_ON_IMMEDIATE_PARAMS_INTERVAL_SIZE_SHIFT 6
141#define DIF_ON_IMMEDIATE_PARAMS_NETWORK_INTERFACE_MASK 0x1
142#define DIF_ON_IMMEDIATE_PARAMS_NETWORK_INTERFACE_SHIFT 7
143#define DIF_ON_IMMEDIATE_PARAMS_HOST_INTERFACE_MASK 0x3
144#define DIF_ON_IMMEDIATE_PARAMS_HOST_INTERFACE_SHIFT 8
145#define DIF_ON_IMMEDIATE_PARAMS_REF_TAG_MASK_MASK 0xF
146#define DIF_ON_IMMEDIATE_PARAMS_REF_TAG_MASK_SHIFT 10
147#define DIF_ON_IMMEDIATE_PARAMS_FORWARD_APP_TAG_WITH_MASK_MASK 0x1
148#define DIF_ON_IMMEDIATE_PARAMS_FORWARD_APP_TAG_WITH_MASK_SHIFT 14
149#define DIF_ON_IMMEDIATE_PARAMS_FORWARD_REF_TAG_WITH_MASK_MASK 0x1
150#define DIF_ON_IMMEDIATE_PARAMS_FORWARD_REF_TAG_WITH_MASK_SHIFT 15
151 u8 flags0;
152#define DIF_ON_IMMEDIATE_PARAMS_RESERVED_MASK 0x1
153#define DIF_ON_IMMEDIATE_PARAMS_RESERVED_SHIFT 0
154#define DIF_ON_IMMEDIATE_PARAMS_IGNORE_APP_TAG_MASK 0x1
155#define DIF_ON_IMMEDIATE_PARAMS_IGNORE_APP_TAG_SHIFT 1
156#define DIF_ON_IMMEDIATE_PARAMS_INITIAL_REF_TAG_IS_VALID_MASK 0x1
157#define DIF_ON_IMMEDIATE_PARAMS_INITIAL_REF_TAG_IS_VALID_SHIFT 2
158#define DIF_ON_IMMEDIATE_PARAMS_HOST_GUARD_TYPE_MASK 0x1
159#define DIF_ON_IMMEDIATE_PARAMS_HOST_GUARD_TYPE_SHIFT 3
160#define DIF_ON_IMMEDIATE_PARAMS_PROTECTION_TYPE_MASK 0x3
161#define DIF_ON_IMMEDIATE_PARAMS_PROTECTION_TYPE_SHIFT 4
162#define DIF_ON_IMMEDIATE_PARAMS_CRC_SEED_MASK 0x1
163#define DIF_ON_IMMEDIATE_PARAMS_CRC_SEED_SHIFT 6
164#define DIF_ON_IMMEDIATE_PARAMS_KEEP_REF_TAG_CONST_MASK 0x1
165#define DIF_ON_IMMEDIATE_PARAMS_KEEP_REF_TAG_CONST_SHIFT 7
166 u8 reserved_zero[5];
167};
168
169
170union dif_configuration_params {
171 struct lun_mapper_addr_reserved lun_mapper_address;
172 struct dif_on_immediate_params def_dif_conf;
173};
174
175
176union iscsi_seq_num {
177 __le16 data_sn;
178 __le16 r2t_sn;
179};
180
181
182struct iscsi_dif_flags {
183 u8 flags;
184#define ISCSI_DIF_FLAGS_PROT_INTERVAL_SIZE_LOG_MASK 0xF
185#define ISCSI_DIF_FLAGS_PROT_INTERVAL_SIZE_LOG_SHIFT 0
186#define ISCSI_DIF_FLAGS_DIF_TO_PEER_MASK 0x1
187#define ISCSI_DIF_FLAGS_DIF_TO_PEER_SHIFT 4
188#define ISCSI_DIF_FLAGS_HOST_INTERFACE_MASK 0x7
189#define ISCSI_DIF_FLAGS_HOST_INTERFACE_SHIFT 5
190};
191
192
193struct ystorm_iscsi_task_state {
194 struct scsi_cached_sges data_desc;
195 struct scsi_sgl_params sgl_params;
196 __le32 exp_r2t_sn;
197 __le32 buffer_offset;
198 union iscsi_seq_num seq_num;
199 struct iscsi_dif_flags dif_flags;
200 u8 flags;
201#define YSTORM_ISCSI_TASK_STATE_LOCAL_COMP_MASK 0x1
202#define YSTORM_ISCSI_TASK_STATE_LOCAL_COMP_SHIFT 0
203#define YSTORM_ISCSI_TASK_STATE_SLOW_IO_MASK 0x1
204#define YSTORM_ISCSI_TASK_STATE_SLOW_IO_SHIFT 1
205#define YSTORM_ISCSI_TASK_STATE_SET_DIF_OFFSET_MASK 0x1
206#define YSTORM_ISCSI_TASK_STATE_SET_DIF_OFFSET_SHIFT 2
207#define YSTORM_ISCSI_TASK_STATE_RESERVED0_MASK 0x1F
208#define YSTORM_ISCSI_TASK_STATE_RESERVED0_SHIFT 3
209};
210
211
212struct ystorm_iscsi_task_rxmit_opt {
213 __le32 fast_rxmit_sge_offset;
214 __le32 scan_start_buffer_offset;
215 __le32 fast_rxmit_buffer_offset;
216 u8 scan_start_sgl_index;
217 u8 fast_rxmit_sgl_index;
218 __le16 reserved;
219};
220
221
222struct iscsi_common_hdr {
223 u8 hdr_status;
224 u8 hdr_response;
225 u8 hdr_flags;
226 u8 hdr_first_byte;
227#define ISCSI_COMMON_HDR_OPCODE_MASK 0x3F
228#define ISCSI_COMMON_HDR_OPCODE_SHIFT 0
229#define ISCSI_COMMON_HDR_IMM_MASK 0x1
230#define ISCSI_COMMON_HDR_IMM_SHIFT 6
231#define ISCSI_COMMON_HDR_RSRV_MASK 0x1
232#define ISCSI_COMMON_HDR_RSRV_SHIFT 7
233 __le32 hdr_second_dword;
234#define ISCSI_COMMON_HDR_DATA_SEG_LEN_MASK 0xFFFFFF
235#define ISCSI_COMMON_HDR_DATA_SEG_LEN_SHIFT 0
236#define ISCSI_COMMON_HDR_TOTAL_AHS_LEN_MASK 0xFF
237#define ISCSI_COMMON_HDR_TOTAL_AHS_LEN_SHIFT 24
238 struct regpair lun_reserved;
239 __le32 itt;
240 __le32 ttt;
241 __le32 cmdstat_sn;
242 __le32 exp_statcmd_sn;
243 __le32 max_cmd_sn;
244 __le32 data[3];
245};
246
247
248struct iscsi_cmd_hdr {
249 __le16 reserved1;
250 u8 flags_attr;
251#define ISCSI_CMD_HDR_ATTR_MASK 0x7
252#define ISCSI_CMD_HDR_ATTR_SHIFT 0
253#define ISCSI_CMD_HDR_RSRV_MASK 0x3
254#define ISCSI_CMD_HDR_RSRV_SHIFT 3
255#define ISCSI_CMD_HDR_WRITE_MASK 0x1
256#define ISCSI_CMD_HDR_WRITE_SHIFT 5
257#define ISCSI_CMD_HDR_READ_MASK 0x1
258#define ISCSI_CMD_HDR_READ_SHIFT 6
259#define ISCSI_CMD_HDR_FINAL_MASK 0x1
260#define ISCSI_CMD_HDR_FINAL_SHIFT 7
261 u8 hdr_first_byte;
262#define ISCSI_CMD_HDR_OPCODE_MASK 0x3F
263#define ISCSI_CMD_HDR_OPCODE_SHIFT 0
264#define ISCSI_CMD_HDR_IMM_MASK 0x1
265#define ISCSI_CMD_HDR_IMM_SHIFT 6
266#define ISCSI_CMD_HDR_RSRV1_MASK 0x1
267#define ISCSI_CMD_HDR_RSRV1_SHIFT 7
268 __le32 hdr_second_dword;
269#define ISCSI_CMD_HDR_DATA_SEG_LEN_MASK 0xFFFFFF
270#define ISCSI_CMD_HDR_DATA_SEG_LEN_SHIFT 0
271#define ISCSI_CMD_HDR_TOTAL_AHS_LEN_MASK 0xFF
272#define ISCSI_CMD_HDR_TOTAL_AHS_LEN_SHIFT 24
273 struct regpair lun;
274 __le32 itt;
275 __le32 expected_transfer_length;
276 __le32 cmd_sn;
277 __le32 exp_stat_sn;
278 __le32 cdb[4];
279};
280
281
282struct iscsi_ext_cdb_cmd_hdr {
283 __le16 reserved1;
284 u8 flags_attr;
285#define ISCSI_EXT_CDB_CMD_HDR_ATTR_MASK 0x7
286#define ISCSI_EXT_CDB_CMD_HDR_ATTR_SHIFT 0
287#define ISCSI_EXT_CDB_CMD_HDR_RSRV_MASK 0x3
288#define ISCSI_EXT_CDB_CMD_HDR_RSRV_SHIFT 3
289#define ISCSI_EXT_CDB_CMD_HDR_WRITE_MASK 0x1
290#define ISCSI_EXT_CDB_CMD_HDR_WRITE_SHIFT 5
291#define ISCSI_EXT_CDB_CMD_HDR_READ_MASK 0x1
292#define ISCSI_EXT_CDB_CMD_HDR_READ_SHIFT 6
293#define ISCSI_EXT_CDB_CMD_HDR_FINAL_MASK 0x1
294#define ISCSI_EXT_CDB_CMD_HDR_FINAL_SHIFT 7
295 u8 opcode;
296 __le32 hdr_second_dword;
297#define ISCSI_EXT_CDB_CMD_HDR_DATA_SEG_LEN_MASK 0xFFFFFF
298#define ISCSI_EXT_CDB_CMD_HDR_DATA_SEG_LEN_SHIFT 0
299#define ISCSI_EXT_CDB_CMD_HDR_CDB_SIZE_MASK 0xFF
300#define ISCSI_EXT_CDB_CMD_HDR_CDB_SIZE_SHIFT 24
301 struct regpair lun;
302 __le32 itt;
303 __le32 expected_transfer_length;
304 __le32 cmd_sn;
305 __le32 exp_stat_sn;
306 struct scsi_sge cdb_sge;
307};
308
309
310struct iscsi_login_req_hdr {
311 u8 version_min;
312 u8 version_max;
313 u8 flags_attr;
314#define ISCSI_LOGIN_REQ_HDR_NSG_MASK 0x3
315#define ISCSI_LOGIN_REQ_HDR_NSG_SHIFT 0
316#define ISCSI_LOGIN_REQ_HDR_CSG_MASK 0x3
317#define ISCSI_LOGIN_REQ_HDR_CSG_SHIFT 2
318#define ISCSI_LOGIN_REQ_HDR_RSRV_MASK 0x3
319#define ISCSI_LOGIN_REQ_HDR_RSRV_SHIFT 4
320#define ISCSI_LOGIN_REQ_HDR_C_MASK 0x1
321#define ISCSI_LOGIN_REQ_HDR_C_SHIFT 6
322#define ISCSI_LOGIN_REQ_HDR_T_MASK 0x1
323#define ISCSI_LOGIN_REQ_HDR_T_SHIFT 7
324 u8 opcode;
325 __le32 hdr_second_dword;
326#define ISCSI_LOGIN_REQ_HDR_DATA_SEG_LEN_MASK 0xFFFFFF
327#define ISCSI_LOGIN_REQ_HDR_DATA_SEG_LEN_SHIFT 0
328#define ISCSI_LOGIN_REQ_HDR_TOTAL_AHS_LEN_MASK 0xFF
329#define ISCSI_LOGIN_REQ_HDR_TOTAL_AHS_LEN_SHIFT 24
330 __le32 isid_tabc;
331 __le16 tsih;
332 __le16 isid_d;
333 __le32 itt;
334 __le16 reserved1;
335 __le16 cid;
336 __le32 cmd_sn;
337 __le32 exp_stat_sn;
338 __le32 reserved2[4];
339};
340
341
342struct iscsi_logout_req_hdr {
343 __le16 reserved0;
344 u8 reason_code;
345 u8 opcode;
346 __le32 reserved1;
347 __le32 reserved2[2];
348 __le32 itt;
349 __le16 reserved3;
350 __le16 cid;
351 __le32 cmd_sn;
352 __le32 exp_stat_sn;
353 __le32 reserved4[4];
354};
355
356
357struct iscsi_data_out_hdr {
358 __le16 reserved1;
359 u8 flags_attr;
360#define ISCSI_DATA_OUT_HDR_RSRV_MASK 0x7F
361#define ISCSI_DATA_OUT_HDR_RSRV_SHIFT 0
362#define ISCSI_DATA_OUT_HDR_FINAL_MASK 0x1
363#define ISCSI_DATA_OUT_HDR_FINAL_SHIFT 7
364 u8 opcode;
365 __le32 reserved2;
366 struct regpair lun;
367 __le32 itt;
368 __le32 ttt;
369 __le32 reserved3;
370 __le32 exp_stat_sn;
371 __le32 reserved4;
372 __le32 data_sn;
373 __le32 buffer_offset;
374 __le32 reserved5;
375};
376
377
378struct iscsi_data_in_hdr {
379 u8 status_rsvd;
380 u8 reserved1;
381 u8 flags;
382#define ISCSI_DATA_IN_HDR_STATUS_MASK 0x1
383#define ISCSI_DATA_IN_HDR_STATUS_SHIFT 0
384#define ISCSI_DATA_IN_HDR_UNDERFLOW_MASK 0x1
385#define ISCSI_DATA_IN_HDR_UNDERFLOW_SHIFT 1
386#define ISCSI_DATA_IN_HDR_OVERFLOW_MASK 0x1
387#define ISCSI_DATA_IN_HDR_OVERFLOW_SHIFT 2
388#define ISCSI_DATA_IN_HDR_RSRV_MASK 0x7
389#define ISCSI_DATA_IN_HDR_RSRV_SHIFT 3
390#define ISCSI_DATA_IN_HDR_ACK_MASK 0x1
391#define ISCSI_DATA_IN_HDR_ACK_SHIFT 6
392#define ISCSI_DATA_IN_HDR_FINAL_MASK 0x1
393#define ISCSI_DATA_IN_HDR_FINAL_SHIFT 7
394 u8 opcode;
395 __le32 reserved2;
396 struct regpair lun;
397 __le32 itt;
398 __le32 ttt;
399 __le32 stat_sn;
400 __le32 exp_cmd_sn;
401 __le32 max_cmd_sn;
402 __le32 data_sn;
403 __le32 buffer_offset;
404 __le32 residual_count;
405};
406
407
408struct iscsi_r2t_hdr {
409 u8 reserved0[3];
410 u8 opcode;
411 __le32 reserved2;
412 struct regpair lun;
413 __le32 itt;
414 __le32 ttt;
415 __le32 stat_sn;
416 __le32 exp_cmd_sn;
417 __le32 max_cmd_sn;
418 __le32 r2t_sn;
419 __le32 buffer_offset;
420 __le32 desired_data_trns_len;
421};
422
423
424struct iscsi_nop_out_hdr {
425 __le16 reserved1;
426 u8 flags_attr;
427#define ISCSI_NOP_OUT_HDR_RSRV_MASK 0x7F
428#define ISCSI_NOP_OUT_HDR_RSRV_SHIFT 0
429#define ISCSI_NOP_OUT_HDR_CONST1_MASK 0x1
430#define ISCSI_NOP_OUT_HDR_CONST1_SHIFT 7
431 u8 opcode;
432 __le32 reserved2;
433 struct regpair lun;
434 __le32 itt;
435 __le32 ttt;
436 __le32 cmd_sn;
437 __le32 exp_stat_sn;
438 __le32 reserved3;
439 __le32 reserved4;
440 __le32 reserved5;
441 __le32 reserved6;
442};
443
444
445struct iscsi_nop_in_hdr {
446 __le16 reserved0;
447 u8 flags_attr;
448#define ISCSI_NOP_IN_HDR_RSRV_MASK 0x7F
449#define ISCSI_NOP_IN_HDR_RSRV_SHIFT 0
450#define ISCSI_NOP_IN_HDR_CONST1_MASK 0x1
451#define ISCSI_NOP_IN_HDR_CONST1_SHIFT 7
452 u8 opcode;
453 __le32 hdr_second_dword;
454#define ISCSI_NOP_IN_HDR_DATA_SEG_LEN_MASK 0xFFFFFF
455#define ISCSI_NOP_IN_HDR_DATA_SEG_LEN_SHIFT 0
456#define ISCSI_NOP_IN_HDR_TOTAL_AHS_LEN_MASK 0xFF
457#define ISCSI_NOP_IN_HDR_TOTAL_AHS_LEN_SHIFT 24
458 struct regpair lun;
459 __le32 itt;
460 __le32 ttt;
461 __le32 stat_sn;
462 __le32 exp_cmd_sn;
463 __le32 max_cmd_sn;
464 __le32 reserved5;
465 __le32 reserved6;
466 __le32 reserved7;
467};
468
469
470struct iscsi_login_response_hdr {
471 u8 version_active;
472 u8 version_max;
473 u8 flags_attr;
474#define ISCSI_LOGIN_RESPONSE_HDR_NSG_MASK 0x3
475#define ISCSI_LOGIN_RESPONSE_HDR_NSG_SHIFT 0
476#define ISCSI_LOGIN_RESPONSE_HDR_CSG_MASK 0x3
477#define ISCSI_LOGIN_RESPONSE_HDR_CSG_SHIFT 2
478#define ISCSI_LOGIN_RESPONSE_HDR_RSRV_MASK 0x3
479#define ISCSI_LOGIN_RESPONSE_HDR_RSRV_SHIFT 4
480#define ISCSI_LOGIN_RESPONSE_HDR_C_MASK 0x1
481#define ISCSI_LOGIN_RESPONSE_HDR_C_SHIFT 6
482#define ISCSI_LOGIN_RESPONSE_HDR_T_MASK 0x1
483#define ISCSI_LOGIN_RESPONSE_HDR_T_SHIFT 7
484 u8 opcode;
485 __le32 hdr_second_dword;
486#define ISCSI_LOGIN_RESPONSE_HDR_DATA_SEG_LEN_MASK 0xFFFFFF
487#define ISCSI_LOGIN_RESPONSE_HDR_DATA_SEG_LEN_SHIFT 0
488#define ISCSI_LOGIN_RESPONSE_HDR_TOTAL_AHS_LEN_MASK 0xFF
489#define ISCSI_LOGIN_RESPONSE_HDR_TOTAL_AHS_LEN_SHIFT 24
490 __le32 isid_tabc;
491 __le16 tsih;
492 __le16 isid_d;
493 __le32 itt;
494 __le32 reserved1;
495 __le32 stat_sn;
496 __le32 exp_cmd_sn;
497 __le32 max_cmd_sn;
498 __le16 reserved2;
499 u8 status_detail;
500 u8 status_class;
501 __le32 reserved4[2];
502};
503
504
505struct iscsi_logout_response_hdr {
506 u8 reserved1;
507 u8 response;
508 u8 flags;
509 u8 opcode;
510 __le32 hdr_second_dword;
511#define ISCSI_LOGOUT_RESPONSE_HDR_DATA_SEG_LEN_MASK 0xFFFFFF
512#define ISCSI_LOGOUT_RESPONSE_HDR_DATA_SEG_LEN_SHIFT 0
513#define ISCSI_LOGOUT_RESPONSE_HDR_TOTAL_AHS_LEN_MASK 0xFF
514#define ISCSI_LOGOUT_RESPONSE_HDR_TOTAL_AHS_LEN_SHIFT 24
515 __le32 reserved2[2];
516 __le32 itt;
517 __le32 reserved3;
518 __le32 stat_sn;
519 __le32 exp_cmd_sn;
520 __le32 max_cmd_sn;
521 __le32 reserved4;
522 __le16 time_2_retain;
523 __le16 time_2_wait;
524 __le32 reserved5[1];
525};
526
527
528struct iscsi_text_request_hdr {
529 __le16 reserved0;
530 u8 flags_attr;
531#define ISCSI_TEXT_REQUEST_HDR_RSRV_MASK 0x3F
532#define ISCSI_TEXT_REQUEST_HDR_RSRV_SHIFT 0
533#define ISCSI_TEXT_REQUEST_HDR_C_MASK 0x1
534#define ISCSI_TEXT_REQUEST_HDR_C_SHIFT 6
535#define ISCSI_TEXT_REQUEST_HDR_F_MASK 0x1
536#define ISCSI_TEXT_REQUEST_HDR_F_SHIFT 7
537 u8 opcode;
538 __le32 hdr_second_dword;
539#define ISCSI_TEXT_REQUEST_HDR_DATA_SEG_LEN_MASK 0xFFFFFF
540#define ISCSI_TEXT_REQUEST_HDR_DATA_SEG_LEN_SHIFT 0
541#define ISCSI_TEXT_REQUEST_HDR_TOTAL_AHS_LEN_MASK 0xFF
542#define ISCSI_TEXT_REQUEST_HDR_TOTAL_AHS_LEN_SHIFT 24
543 struct regpair lun;
544 __le32 itt;
545 __le32 ttt;
546 __le32 cmd_sn;
547 __le32 exp_stat_sn;
548 __le32 reserved4[4];
549};
550
551
552struct iscsi_text_response_hdr {
553 __le16 reserved1;
554 u8 flags;
555#define ISCSI_TEXT_RESPONSE_HDR_RSRV_MASK 0x3F
556#define ISCSI_TEXT_RESPONSE_HDR_RSRV_SHIFT 0
557#define ISCSI_TEXT_RESPONSE_HDR_C_MASK 0x1
558#define ISCSI_TEXT_RESPONSE_HDR_C_SHIFT 6
559#define ISCSI_TEXT_RESPONSE_HDR_F_MASK 0x1
560#define ISCSI_TEXT_RESPONSE_HDR_F_SHIFT 7
561 u8 opcode;
562 __le32 hdr_second_dword;
563#define ISCSI_TEXT_RESPONSE_HDR_DATA_SEG_LEN_MASK 0xFFFFFF
564#define ISCSI_TEXT_RESPONSE_HDR_DATA_SEG_LEN_SHIFT 0
565#define ISCSI_TEXT_RESPONSE_HDR_TOTAL_AHS_LEN_MASK 0xFF
566#define ISCSI_TEXT_RESPONSE_HDR_TOTAL_AHS_LEN_SHIFT 24
567 struct regpair lun;
568 __le32 itt;
569 __le32 ttt;
570 __le32 stat_sn;
571 __le32 exp_cmd_sn;
572 __le32 max_cmd_sn;
573 __le32 reserved4[3];
574};
575
576
577struct iscsi_tmf_request_hdr {
578 __le16 reserved0;
579 u8 function;
580 u8 opcode;
581 __le32 hdr_second_dword;
582#define ISCSI_TMF_REQUEST_HDR_DATA_SEG_LEN_MASK 0xFFFFFF
583#define ISCSI_TMF_REQUEST_HDR_DATA_SEG_LEN_SHIFT 0
584#define ISCSI_TMF_REQUEST_HDR_TOTAL_AHS_LEN_MASK 0xFF
585#define ISCSI_TMF_REQUEST_HDR_TOTAL_AHS_LEN_SHIFT 24
586 struct regpair lun;
587 __le32 itt;
588 __le32 rtt;
589 __le32 cmd_sn;
590 __le32 exp_stat_sn;
591 __le32 ref_cmd_sn;
592 __le32 exp_data_sn;
593 __le32 reserved4[2];
594};
595
596struct iscsi_tmf_response_hdr {
597 u8 reserved2;
598 u8 hdr_response;
599 u8 hdr_flags;
600 u8 opcode;
601 __le32 hdr_second_dword;
602#define ISCSI_TMF_RESPONSE_HDR_DATA_SEG_LEN_MASK 0xFFFFFF
603#define ISCSI_TMF_RESPONSE_HDR_DATA_SEG_LEN_SHIFT 0
604#define ISCSI_TMF_RESPONSE_HDR_TOTAL_AHS_LEN_MASK 0xFF
605#define ISCSI_TMF_RESPONSE_HDR_TOTAL_AHS_LEN_SHIFT 24
606 struct regpair reserved0;
607 __le32 itt;
608 __le32 reserved1;
609 __le32 stat_sn;
610 __le32 exp_cmd_sn;
611 __le32 max_cmd_sn;
612 __le32 reserved4[3];
613};
614
615
616struct iscsi_response_hdr {
617 u8 hdr_status;
618 u8 hdr_response;
619 u8 hdr_flags;
620 u8 opcode;
621 __le32 hdr_second_dword;
622#define ISCSI_RESPONSE_HDR_DATA_SEG_LEN_MASK 0xFFFFFF
623#define ISCSI_RESPONSE_HDR_DATA_SEG_LEN_SHIFT 0
624#define ISCSI_RESPONSE_HDR_TOTAL_AHS_LEN_MASK 0xFF
625#define ISCSI_RESPONSE_HDR_TOTAL_AHS_LEN_SHIFT 24
626 struct regpair lun;
627 __le32 itt;
628 __le32 snack_tag;
629 __le32 stat_sn;
630 __le32 exp_cmd_sn;
631 __le32 max_cmd_sn;
632 __le32 exp_data_sn;
633 __le32 bi_residual_count;
634 __le32 residual_count;
635};
636
637
638struct iscsi_reject_hdr {
639 u8 reserved4;
640 u8 hdr_reason;
641 u8 hdr_flags;
642 u8 opcode;
643 __le32 hdr_second_dword;
644#define ISCSI_REJECT_HDR_DATA_SEG_LEN_MASK 0xFFFFFF
645#define ISCSI_REJECT_HDR_DATA_SEG_LEN_SHIFT 0
646#define ISCSI_REJECT_HDR_TOTAL_AHS_LEN_MASK 0xFF
647#define ISCSI_REJECT_HDR_TOTAL_AHS_LEN_SHIFT 24
648 struct regpair reserved0;
649 __le32 all_ones;
650 __le32 reserved2;
651 __le32 stat_sn;
652 __le32 exp_cmd_sn;
653 __le32 max_cmd_sn;
654 __le32 data_sn;
655 __le32 reserved3[2];
656};
657
658
659struct iscsi_async_msg_hdr {
660 __le16 reserved0;
661 u8 flags_attr;
662#define ISCSI_ASYNC_MSG_HDR_RSRV_MASK 0x7F
663#define ISCSI_ASYNC_MSG_HDR_RSRV_SHIFT 0
664#define ISCSI_ASYNC_MSG_HDR_CONST1_MASK 0x1
665#define ISCSI_ASYNC_MSG_HDR_CONST1_SHIFT 7
666 u8 opcode;
667 __le32 hdr_second_dword;
668#define ISCSI_ASYNC_MSG_HDR_DATA_SEG_LEN_MASK 0xFFFFFF
669#define ISCSI_ASYNC_MSG_HDR_DATA_SEG_LEN_SHIFT 0
670#define ISCSI_ASYNC_MSG_HDR_TOTAL_AHS_LEN_MASK 0xFF
671#define ISCSI_ASYNC_MSG_HDR_TOTAL_AHS_LEN_SHIFT 24
672 struct regpair lun;
673 __le32 all_ones;
674 __le32 reserved1;
675 __le32 stat_sn;
676 __le32 exp_cmd_sn;
677 __le32 max_cmd_sn;
678 __le16 param1_rsrv;
679 u8 async_vcode;
680 u8 async_event;
681 __le16 param3_rsrv;
682 __le16 param2_rsrv;
683 __le32 reserved7;
684};
685
686
687union iscsi_task_hdr {
688 struct iscsi_common_hdr common;
689 struct data_hdr data;
690 struct iscsi_cmd_hdr cmd;
691 struct iscsi_ext_cdb_cmd_hdr ext_cdb_cmd;
692 struct iscsi_login_req_hdr login_req;
693 struct iscsi_logout_req_hdr logout_req;
694 struct iscsi_data_out_hdr data_out;
695 struct iscsi_data_in_hdr data_in;
696 struct iscsi_r2t_hdr r2t;
697 struct iscsi_nop_out_hdr nop_out;
698 struct iscsi_nop_in_hdr nop_in;
699 struct iscsi_login_response_hdr login_response;
700 struct iscsi_logout_response_hdr logout_response;
701 struct iscsi_text_request_hdr text_request;
702 struct iscsi_text_response_hdr text_response;
703 struct iscsi_tmf_request_hdr tmf_request;
704 struct iscsi_tmf_response_hdr tmf_response;
705 struct iscsi_response_hdr response;
706 struct iscsi_reject_hdr reject;
707 struct iscsi_async_msg_hdr async_msg;
708};
709
710
711struct ystorm_iscsi_task_st_ctx {
712 struct ystorm_iscsi_task_state state;
713 struct ystorm_iscsi_task_rxmit_opt rxmit_opt;
714 union iscsi_task_hdr pdu_hdr;
715};
716
717struct e4_ystorm_iscsi_task_ag_ctx {
718 u8 reserved;
719 u8 byte1;
720 __le16 word0;
721 u8 flags0;
722#define E4_YSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_MASK 0xF
723#define E4_YSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_SHIFT 0
724#define E4_YSTORM_ISCSI_TASK_AG_CTX_BIT0_MASK 0x1
725#define E4_YSTORM_ISCSI_TASK_AG_CTX_BIT0_SHIFT 4
726#define E4_YSTORM_ISCSI_TASK_AG_CTX_BIT1_MASK 0x1
727#define E4_YSTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT 5
728#define E4_YSTORM_ISCSI_TASK_AG_CTX_VALID_MASK 0x1
729#define E4_YSTORM_ISCSI_TASK_AG_CTX_VALID_SHIFT 6
730#define E4_YSTORM_ISCSI_TASK_AG_CTX_TTT_VALID_MASK 0x1
731#define E4_YSTORM_ISCSI_TASK_AG_CTX_TTT_VALID_SHIFT 7
732 u8 flags1;
733#define E4_YSTORM_ISCSI_TASK_AG_CTX_CF0_MASK 0x3
734#define E4_YSTORM_ISCSI_TASK_AG_CTX_CF0_SHIFT 0
735#define E4_YSTORM_ISCSI_TASK_AG_CTX_CF1_MASK 0x3
736#define E4_YSTORM_ISCSI_TASK_AG_CTX_CF1_SHIFT 2
737#define E4_YSTORM_ISCSI_TASK_AG_CTX_CF2SPECIAL_MASK 0x3
738#define E4_YSTORM_ISCSI_TASK_AG_CTX_CF2SPECIAL_SHIFT 4
739#define E4_YSTORM_ISCSI_TASK_AG_CTX_CF0EN_MASK 0x1
740#define E4_YSTORM_ISCSI_TASK_AG_CTX_CF0EN_SHIFT 6
741#define E4_YSTORM_ISCSI_TASK_AG_CTX_CF1EN_MASK 0x1
742#define E4_YSTORM_ISCSI_TASK_AG_CTX_CF1EN_SHIFT 7
743 u8 flags2;
744#define E4_YSTORM_ISCSI_TASK_AG_CTX_BIT4_MASK 0x1
745#define E4_YSTORM_ISCSI_TASK_AG_CTX_BIT4_SHIFT 0
746#define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE0EN_MASK 0x1
747#define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE0EN_SHIFT 1
748#define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1
749#define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 2
750#define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE2EN_MASK 0x1
751#define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE2EN_SHIFT 3
752#define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1
753#define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 4
754#define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1
755#define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 5
756#define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1
757#define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 6
758#define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE6EN_MASK 0x1
759#define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE6EN_SHIFT 7
760 u8 byte2;
761 __le32 TTT;
762 u8 byte3;
763 u8 byte4;
764 __le16 word1;
765};
766
767struct e4_mstorm_iscsi_task_ag_ctx {
768 u8 cdu_validation;
769 u8 byte1;
770 __le16 task_cid;
771 u8 flags0;
772#define E4_MSTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_MASK 0xF
773#define E4_MSTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_SHIFT 0
774#define E4_MSTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_MASK 0x1
775#define E4_MSTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_SHIFT 4
776#define E4_MSTORM_ISCSI_TASK_AG_CTX_CONN_CLEAR_SQ_FLAG_MASK 0x1
777#define E4_MSTORM_ISCSI_TASK_AG_CTX_CONN_CLEAR_SQ_FLAG_SHIFT 5
778#define E4_MSTORM_ISCSI_TASK_AG_CTX_VALID_MASK 0x1
779#define E4_MSTORM_ISCSI_TASK_AG_CTX_VALID_SHIFT 6
780#define E4_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_FLAG_MASK 0x1
781#define E4_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_FLAG_SHIFT 7
782 u8 flags1;
783#define E4_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_MASK 0x3
784#define E4_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_SHIFT 0
785#define E4_MSTORM_ISCSI_TASK_AG_CTX_CF1_MASK 0x3
786#define E4_MSTORM_ISCSI_TASK_AG_CTX_CF1_SHIFT 2
787#define E4_MSTORM_ISCSI_TASK_AG_CTX_CF2_MASK 0x3
788#define E4_MSTORM_ISCSI_TASK_AG_CTX_CF2_SHIFT 4
789#define E4_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_EN_MASK 0x1
790#define E4_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_EN_SHIFT 6
791#define E4_MSTORM_ISCSI_TASK_AG_CTX_CF1EN_MASK 0x1
792#define E4_MSTORM_ISCSI_TASK_AG_CTX_CF1EN_SHIFT 7
793 u8 flags2;
794#define E4_MSTORM_ISCSI_TASK_AG_CTX_CF2EN_MASK 0x1
795#define E4_MSTORM_ISCSI_TASK_AG_CTX_CF2EN_SHIFT 0
796#define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE0EN_MASK 0x1
797#define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE0EN_SHIFT 1
798#define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1
799#define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 2
800#define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE2EN_MASK 0x1
801#define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE2EN_SHIFT 3
802#define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1
803#define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 4
804#define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1
805#define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 5
806#define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1
807#define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 6
808#define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE6EN_MASK 0x1
809#define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE6EN_SHIFT 7
810 u8 byte2;
811 __le32 reg0;
812 u8 byte3;
813 u8 byte4;
814 __le16 word1;
815};
816
817struct e4_ustorm_iscsi_task_ag_ctx {
818 u8 reserved;
819 u8 state;
820 __le16 icid;
821 u8 flags0;
822#define E4_USTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_MASK 0xF
823#define E4_USTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_SHIFT 0
824#define E4_USTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_MASK 0x1
825#define E4_USTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_SHIFT 4
826#define E4_USTORM_ISCSI_TASK_AG_CTX_CONN_CLEAR_SQ_FLAG_MASK 0x1
827#define E4_USTORM_ISCSI_TASK_AG_CTX_CONN_CLEAR_SQ_FLAG_SHIFT 5
828#define E4_USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_MASK 0x3
829#define E4_USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_SHIFT 6
830 u8 flags1;
831#define E4_USTORM_ISCSI_TASK_AG_CTX_RESERVED1_MASK 0x3
832#define E4_USTORM_ISCSI_TASK_AG_CTX_RESERVED1_SHIFT 0
833#define E4_USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_MASK 0x3
834#define E4_USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_SHIFT 2
835#define E4_USTORM_ISCSI_TASK_AG_CTX_CF3_MASK 0x3
836#define E4_USTORM_ISCSI_TASK_AG_CTX_CF3_SHIFT 4
837#define E4_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_MASK 0x3
838#define E4_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_SHIFT 6
839 u8 flags2;
840#define E4_USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_EN_MASK 0x1
841#define E4_USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_EN_SHIFT 0
842#define E4_USTORM_ISCSI_TASK_AG_CTX_DISABLE_DATA_ACKED_MASK 0x1
843#define E4_USTORM_ISCSI_TASK_AG_CTX_DISABLE_DATA_ACKED_SHIFT 1
844#define E4_USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_EN_MASK 0x1
845#define E4_USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_EN_SHIFT 2
846#define E4_USTORM_ISCSI_TASK_AG_CTX_CF3EN_MASK 0x1
847#define E4_USTORM_ISCSI_TASK_AG_CTX_CF3EN_SHIFT 3
848#define E4_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_EN_MASK 0x1
849#define E4_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_EN_SHIFT 4
850#define E4_USTORM_ISCSI_TASK_AG_CTX_CMP_DATA_TOTAL_EXP_EN_MASK 0x1
851#define E4_USTORM_ISCSI_TASK_AG_CTX_CMP_DATA_TOTAL_EXP_EN_SHIFT 5
852#define E4_USTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1
853#define E4_USTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 6
854#define E4_USTORM_ISCSI_TASK_AG_CTX_CMP_CONT_RCV_EXP_EN_MASK 0x1
855#define E4_USTORM_ISCSI_TASK_AG_CTX_CMP_CONT_RCV_EXP_EN_SHIFT 7
856 u8 flags3;
857#define E4_USTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1
858#define E4_USTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 0
859#define E4_USTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1
860#define E4_USTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 1
861#define E4_USTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1
862#define E4_USTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 2
863#define E4_USTORM_ISCSI_TASK_AG_CTX_RULE6EN_MASK 0x1
864#define E4_USTORM_ISCSI_TASK_AG_CTX_RULE6EN_SHIFT 3
865#define E4_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_TYPE_MASK 0xF
866#define E4_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_TYPE_SHIFT 4
867 __le32 dif_err_intervals;
868 __le32 dif_error_1st_interval;
869 __le32 rcv_cont_len;
870 __le32 exp_cont_len;
871 __le32 total_data_acked;
872 __le32 exp_data_acked;
873 u8 byte2;
874 u8 byte3;
875 __le16 word1;
876 __le16 next_tid;
877 __le16 word3;
878 __le32 hdr_residual_count;
879 __le32 exp_r2t_sn;
880};
881
882
883struct mstorm_iscsi_task_st_ctx {
884 struct scsi_cached_sges data_desc;
885 struct scsi_sgl_params sgl_params;
886 __le32 rem_task_size;
887 __le32 data_buffer_offset;
888 u8 task_type;
889 struct iscsi_dif_flags dif_flags;
890 __le16 dif_task_icid;
891 struct regpair sense_db;
892 __le32 expected_itt;
893 __le32 reserved1;
894};
895
896struct iscsi_reg1 {
897 __le32 reg1_map;
898#define ISCSI_REG1_NUM_SGES_MASK 0xF
899#define ISCSI_REG1_NUM_SGES_SHIFT 0
900#define ISCSI_REG1_RESERVED1_MASK 0xFFFFFFF
901#define ISCSI_REG1_RESERVED1_SHIFT 4
902};
903
904struct tqe_opaque {
905 __le16 opaque[2];
906};
907
908
909struct ustorm_iscsi_task_st_ctx {
910 __le32 rem_rcv_len;
911 __le32 exp_data_transfer_len;
912 __le32 exp_data_sn;
913 struct regpair lun;
914 struct iscsi_reg1 reg1;
915 u8 flags2;
916#define USTORM_ISCSI_TASK_ST_CTX_AHS_EXIST_MASK 0x1
917#define USTORM_ISCSI_TASK_ST_CTX_AHS_EXIST_SHIFT 0
918#define USTORM_ISCSI_TASK_ST_CTX_RESERVED1_MASK 0x7F
919#define USTORM_ISCSI_TASK_ST_CTX_RESERVED1_SHIFT 1
920 struct iscsi_dif_flags dif_flags;
921 __le16 reserved3;
922 struct tqe_opaque tqe_opaque_list;
923 __le32 reserved5;
924 __le32 reserved6;
925 __le32 reserved7;
926 u8 task_type;
927 u8 error_flags;
928#define USTORM_ISCSI_TASK_ST_CTX_DATA_DIGEST_ERROR_MASK 0x1
929#define USTORM_ISCSI_TASK_ST_CTX_DATA_DIGEST_ERROR_SHIFT 0
930#define USTORM_ISCSI_TASK_ST_CTX_DATA_TRUNCATED_ERROR_MASK 0x1
931#define USTORM_ISCSI_TASK_ST_CTX_DATA_TRUNCATED_ERROR_SHIFT 1
932#define USTORM_ISCSI_TASK_ST_CTX_UNDER_RUN_ERROR_MASK 0x1
933#define USTORM_ISCSI_TASK_ST_CTX_UNDER_RUN_ERROR_SHIFT 2
934#define USTORM_ISCSI_TASK_ST_CTX_RESERVED8_MASK 0x1F
935#define USTORM_ISCSI_TASK_ST_CTX_RESERVED8_SHIFT 3
936 u8 flags;
937#define USTORM_ISCSI_TASK_ST_CTX_CQE_WRITE_MASK 0x3
938#define USTORM_ISCSI_TASK_ST_CTX_CQE_WRITE_SHIFT 0
939#define USTORM_ISCSI_TASK_ST_CTX_LOCAL_COMP_MASK 0x1
940#define USTORM_ISCSI_TASK_ST_CTX_LOCAL_COMP_SHIFT 2
941#define USTORM_ISCSI_TASK_ST_CTX_Q0_R2TQE_WRITE_MASK 0x1
942#define USTORM_ISCSI_TASK_ST_CTX_Q0_R2TQE_WRITE_SHIFT 3
943#define USTORM_ISCSI_TASK_ST_CTX_TOTAL_DATA_ACKED_DONE_MASK 0x1
944#define USTORM_ISCSI_TASK_ST_CTX_TOTAL_DATA_ACKED_DONE_SHIFT 4
945#define USTORM_ISCSI_TASK_ST_CTX_HQ_SCANNED_DONE_MASK 0x1
946#define USTORM_ISCSI_TASK_ST_CTX_HQ_SCANNED_DONE_SHIFT 5
947#define USTORM_ISCSI_TASK_ST_CTX_R2T2RECV_DONE_MASK 0x1
948#define USTORM_ISCSI_TASK_ST_CTX_R2T2RECV_DONE_SHIFT 6
949#define USTORM_ISCSI_TASK_ST_CTX_RESERVED0_MASK 0x1
950#define USTORM_ISCSI_TASK_ST_CTX_RESERVED0_SHIFT 7
951 u8 cq_rss_number;
952};
953
954
955struct e4_iscsi_task_context {
956 struct ystorm_iscsi_task_st_ctx ystorm_st_context;
957 struct e4_ystorm_iscsi_task_ag_ctx ystorm_ag_context;
958 struct regpair ystorm_ag_padding[2];
959 struct tdif_task_context tdif_context;
960 struct e4_mstorm_iscsi_task_ag_ctx mstorm_ag_context;
961 struct regpair mstorm_ag_padding[2];
962 struct e4_ustorm_iscsi_task_ag_ctx ustorm_ag_context;
963 struct mstorm_iscsi_task_st_ctx mstorm_st_context;
964 struct ustorm_iscsi_task_st_ctx ustorm_st_context;
965 struct rdif_task_context rdif_context;
966};
967
968
969
970
971struct iscsi_conn_offload_params {
972 struct regpair sq_pbl_addr;
973 struct regpair r2tq_pbl_addr;
974 struct regpair xhq_pbl_addr;
975 struct regpair uhq_pbl_addr;
976 __le16 physical_q0;
977 __le16 physical_q1;
978 u8 flags;
979#define ISCSI_CONN_OFFLOAD_PARAMS_TCP_ON_CHIP_1B_MASK 0x1
980#define ISCSI_CONN_OFFLOAD_PARAMS_TCP_ON_CHIP_1B_SHIFT 0
981#define ISCSI_CONN_OFFLOAD_PARAMS_TARGET_MODE_MASK 0x1
982#define ISCSI_CONN_OFFLOAD_PARAMS_TARGET_MODE_SHIFT 1
983#define ISCSI_CONN_OFFLOAD_PARAMS_RESTRICTED_MODE_MASK 0x1
984#define ISCSI_CONN_OFFLOAD_PARAMS_RESTRICTED_MODE_SHIFT 2
985#define ISCSI_CONN_OFFLOAD_PARAMS_RESERVED1_MASK 0x1F
986#define ISCSI_CONN_OFFLOAD_PARAMS_RESERVED1_SHIFT 3
987 u8 default_cq;
988 __le16 reserved0;
989 __le32 stat_sn;
990 __le32 initial_ack;
991};
992
993
994struct iscsi_conn_stats_params {
995 struct regpair iscsi_tcp_tx_packets_cnt;
996 struct regpair iscsi_tcp_tx_bytes_cnt;
997 struct regpair iscsi_tcp_tx_rxmit_cnt;
998 struct regpair iscsi_tcp_rx_packets_cnt;
999 struct regpair iscsi_tcp_rx_bytes_cnt;
1000 struct regpair iscsi_tcp_rx_dup_ack_cnt;
1001 __le32 iscsi_tcp_rx_chksum_err_cnt;
1002 __le32 reserved;
1003};
1004
1005
1006
1007
1008
1009struct iscsi_conn_update_ramrod_params {
1010 __le16 reserved0;
1011 __le16 conn_id;
1012 __le32 reserved1;
1013 u8 flags;
1014#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_HD_EN_MASK 0x1
1015#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_HD_EN_SHIFT 0
1016#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DD_EN_MASK 0x1
1017#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DD_EN_SHIFT 1
1018#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_INITIAL_R2T_MASK 0x1
1019#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_INITIAL_R2T_SHIFT 2
1020#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_IMMEDIATE_DATA_MASK 0x1
1021#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_IMMEDIATE_DATA_SHIFT 3
1022#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DIF_BLOCK_SIZE_MASK 0x1
1023#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DIF_BLOCK_SIZE_SHIFT 4
1024#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DIF_ON_HOST_EN_MASK 0x1
1025#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DIF_ON_HOST_EN_SHIFT 5
1026#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DIF_ON_IMM_EN_MASK 0x1
1027#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DIF_ON_IMM_EN_SHIFT 6
1028#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_LUN_MAPPER_EN_MASK 0x1
1029#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_LUN_MAPPER_EN_SHIFT 7
1030 u8 reserved3[3];
1031 __le32 max_seq_size;
1032 __le32 max_send_pdu_length;
1033 __le32 max_recv_pdu_length;
1034 __le32 first_seq_length;
1035 __le32 exp_stat_sn;
1036 union dif_configuration_params dif_on_imme_params;
1037};
1038
1039
1040struct iscsi_cqe_common {
1041 __le16 conn_id;
1042 u8 cqe_type;
1043 union cqe_error_status error_bitmap;
1044 __le32 reserved[3];
1045 union iscsi_task_hdr iscsi_hdr;
1046};
1047
1048
1049struct iscsi_cqe_solicited {
1050 __le16 conn_id;
1051 u8 cqe_type;
1052 union cqe_error_status error_bitmap;
1053 __le16 itid;
1054 u8 task_type;
1055 u8 fw_dbg_field;
1056 u8 caused_conn_err;
1057 u8 reserved0[3];
1058 __le32 data_truncated_bytes;
1059 union iscsi_task_hdr iscsi_hdr;
1060};
1061
1062
1063struct iscsi_cqe_unsolicited {
1064 __le16 conn_id;
1065 u8 cqe_type;
1066 union cqe_error_status error_bitmap;
1067 __le16 reserved0;
1068 u8 reserved1;
1069 u8 unsol_cqe_type;
1070 __le16 rqe_opaque;
1071 __le16 reserved2[3];
1072 union iscsi_task_hdr iscsi_hdr;
1073};
1074
1075
1076union iscsi_cqe {
1077 struct iscsi_cqe_common cqe_common;
1078 struct iscsi_cqe_solicited cqe_solicited;
1079 struct iscsi_cqe_unsolicited cqe_unsolicited;
1080};
1081
1082
1083enum iscsi_cqes_type {
1084 ISCSI_CQE_TYPE_SOLICITED = 1,
1085 ISCSI_CQE_TYPE_UNSOLICITED,
1086 ISCSI_CQE_TYPE_SOLICITED_WITH_SENSE,
1087 ISCSI_CQE_TYPE_TASK_CLEANUP,
1088 ISCSI_CQE_TYPE_DUMMY,
1089 MAX_ISCSI_CQES_TYPE
1090};
1091
1092
1093enum iscsi_cqe_unsolicited_type {
1094 ISCSI_CQE_UNSOLICITED_NONE,
1095 ISCSI_CQE_UNSOLICITED_SINGLE,
1096 ISCSI_CQE_UNSOLICITED_FIRST,
1097 ISCSI_CQE_UNSOLICITED_MIDDLE,
1098 ISCSI_CQE_UNSOLICITED_LAST,
1099 MAX_ISCSI_CQE_UNSOLICITED_TYPE
1100};
1101
1102
1103struct iscsi_debug_modes {
1104 u8 flags;
1105#define ISCSI_DEBUG_MODES_ASSERT_IF_RX_CONN_ERROR_MASK 0x1
1106#define ISCSI_DEBUG_MODES_ASSERT_IF_RX_CONN_ERROR_SHIFT 0
1107#define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_RESET_MASK 0x1
1108#define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_RESET_SHIFT 1
1109#define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_FIN_MASK 0x1
1110#define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_FIN_SHIFT 2
1111#define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_CLEANUP_MASK 0x1
1112#define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_CLEANUP_SHIFT 3
1113#define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_REJECT_OR_ASYNC_MASK 0x1
1114#define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_REJECT_OR_ASYNC_SHIFT 4
1115#define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_NOP_MASK 0x1
1116#define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_NOP_SHIFT 5
1117#define ISCSI_DEBUG_MODES_ASSERT_IF_DIF_OR_DATA_DIGEST_ERROR_MASK 0x1
1118#define ISCSI_DEBUG_MODES_ASSERT_IF_DIF_OR_DATA_DIGEST_ERROR_SHIFT 6
1119#define ISCSI_DEBUG_MODES_ASSERT_IF_HQ_CORRUPT_MASK 0x1
1120#define ISCSI_DEBUG_MODES_ASSERT_IF_HQ_CORRUPT_SHIFT 7
1121};
1122
1123
1124enum iscsi_eqe_opcode {
1125 ISCSI_EVENT_TYPE_INIT_FUNC = 0,
1126 ISCSI_EVENT_TYPE_DESTROY_FUNC,
1127 ISCSI_EVENT_TYPE_OFFLOAD_CONN,
1128 ISCSI_EVENT_TYPE_UPDATE_CONN,
1129 ISCSI_EVENT_TYPE_CLEAR_SQ,
1130 ISCSI_EVENT_TYPE_TERMINATE_CONN,
1131 ISCSI_EVENT_TYPE_MAC_UPDATE_CONN,
1132 ISCSI_EVENT_TYPE_COLLECT_STATS_CONN,
1133 ISCSI_EVENT_TYPE_ASYN_CONNECT_COMPLETE,
1134 ISCSI_EVENT_TYPE_ASYN_TERMINATE_DONE,
1135 ISCSI_EVENT_TYPE_START_OF_ERROR_TYPES = 10,
1136 ISCSI_EVENT_TYPE_ASYN_ABORT_RCVD,
1137 ISCSI_EVENT_TYPE_ASYN_CLOSE_RCVD,
1138 ISCSI_EVENT_TYPE_ASYN_SYN_RCVD,
1139 ISCSI_EVENT_TYPE_ASYN_MAX_RT_TIME,
1140 ISCSI_EVENT_TYPE_ASYN_MAX_RT_CNT,
1141 ISCSI_EVENT_TYPE_ASYN_MAX_KA_PROBES_CNT,
1142 ISCSI_EVENT_TYPE_ASYN_FIN_WAIT2,
1143 ISCSI_EVENT_TYPE_ISCSI_CONN_ERROR,
1144 ISCSI_EVENT_TYPE_TCP_CONN_ERROR,
1145 MAX_ISCSI_EQE_OPCODE
1146};
1147
1148
1149enum iscsi_error_types {
1150 ISCSI_STATUS_NONE = 0,
1151 ISCSI_CQE_ERROR_UNSOLICITED_RCV_ON_INVALID_CONN = 1,
1152 ISCSI_CONN_ERROR_TASK_CID_MISMATCH,
1153 ISCSI_CONN_ERROR_TASK_NOT_VALID,
1154 ISCSI_CONN_ERROR_RQ_RING_IS_FULL,
1155 ISCSI_CONN_ERROR_CMDQ_RING_IS_FULL,
1156 ISCSI_CONN_ERROR_HQE_CACHING_FAILED,
1157 ISCSI_CONN_ERROR_HEADER_DIGEST_ERROR,
1158 ISCSI_CONN_ERROR_LOCAL_COMPLETION_ERROR,
1159 ISCSI_CONN_ERROR_DATA_OVERRUN,
1160 ISCSI_CONN_ERROR_OUT_OF_SGES_ERROR,
1161 ISCSI_CONN_ERROR_IP_OPTIONS_ERROR,
1162 ISCSI_CONN_ERROR_PRS_ERRORS,
1163 ISCSI_CONN_ERROR_CONNECT_INVALID_TCP_OPTION,
1164 ISCSI_CONN_ERROR_TCP_IP_FRAGMENT_ERROR,
1165 ISCSI_CONN_ERROR_PROTOCOL_ERR_AHS_LEN,
1166 ISCSI_CONN_ERROR_PROTOCOL_ERR_AHS_TYPE,
1167 ISCSI_CONN_ERROR_PROTOCOL_ERR_ITT_OUT_OF_RANGE,
1168 ISCSI_CONN_ERROR_PROTOCOL_ERR_TTT_OUT_OF_RANGE,
1169 ISCSI_CONN_ERROR_PROTOCOL_ERR_DATA_SEG_LEN_EXCEEDS_PDU_SIZE,
1170 ISCSI_CONN_ERROR_PROTOCOL_ERR_INVALID_OPCODE,
1171 ISCSI_CONN_ERROR_PROTOCOL_ERR_INVALID_OPCODE_BEFORE_UPDATE,
1172 ISCSI_CONN_ERROR_UNVALID_NOPIN_DSL,
1173 ISCSI_CONN_ERROR_PROTOCOL_ERR_R2T_CARRIES_NO_DATA,
1174 ISCSI_CONN_ERROR_PROTOCOL_ERR_DATA_SN,
1175 ISCSI_CONN_ERROR_PROTOCOL_ERR_DATA_IN_TTT,
1176 ISCSI_CONN_ERROR_PROTOCOL_ERR_DATA_OUT_ITT,
1177 ISCSI_CONN_ERROR_PROTOCOL_ERR_R2T_TTT,
1178 ISCSI_CONN_ERROR_PROTOCOL_ERR_R2T_BUFFER_OFFSET,
1179 ISCSI_CONN_ERROR_PROTOCOL_ERR_BUFFER_OFFSET_OOO,
1180 ISCSI_CONN_ERROR_PROTOCOL_ERR_R2T_SN,
1181 ISCSI_CONN_ERROR_PROTOCOL_ERR_DESIRED_DATA_TRNS_LEN_0,
1182 ISCSI_CONN_ERROR_PROTOCOL_ERR_DESIRED_DATA_TRNS_LEN_1,
1183 ISCSI_CONN_ERROR_PROTOCOL_ERR_DESIRED_DATA_TRNS_LEN_2,
1184 ISCSI_CONN_ERROR_PROTOCOL_ERR_LUN,
1185 ISCSI_CONN_ERROR_PROTOCOL_ERR_F_BIT_ZERO,
1186 ISCSI_CONN_ERROR_PROTOCOL_ERR_F_BIT_ZERO_S_BIT_ONE,
1187 ISCSI_CONN_ERROR_PROTOCOL_ERR_EXP_STAT_SN,
1188 ISCSI_CONN_ERROR_PROTOCOL_ERR_DSL_NOT_ZERO,
1189 ISCSI_CONN_ERROR_PROTOCOL_ERR_INVALID_DSL,
1190 ISCSI_CONN_ERROR_PROTOCOL_ERR_DATA_SEG_LEN_TOO_BIG,
1191 ISCSI_CONN_ERROR_PROTOCOL_ERR_OUTSTANDING_R2T_COUNT,
1192 ISCSI_CONN_ERROR_PROTOCOL_ERR_DIF_TX,
1193 ISCSI_CONN_ERROR_SENSE_DATA_LENGTH,
1194 ISCSI_CONN_ERROR_DATA_PLACEMENT_ERROR,
1195 ISCSI_CONN_ERROR_INVALID_ITT,
1196 ISCSI_ERROR_UNKNOWN,
1197 MAX_ISCSI_ERROR_TYPES
1198};
1199
1200
1201enum iscsi_ramrod_cmd_id {
1202 ISCSI_RAMROD_CMD_ID_UNUSED = 0,
1203 ISCSI_RAMROD_CMD_ID_INIT_FUNC = 1,
1204 ISCSI_RAMROD_CMD_ID_DESTROY_FUNC = 2,
1205 ISCSI_RAMROD_CMD_ID_OFFLOAD_CONN = 3,
1206 ISCSI_RAMROD_CMD_ID_UPDATE_CONN = 4,
1207 ISCSI_RAMROD_CMD_ID_TERMINATION_CONN = 5,
1208 ISCSI_RAMROD_CMD_ID_CLEAR_SQ = 6,
1209 ISCSI_RAMROD_CMD_ID_MAC_UPDATE = 7,
1210 ISCSI_RAMROD_CMD_ID_CONN_STATS = 8,
1211 MAX_ISCSI_RAMROD_CMD_ID
1212};
1213
1214
1215struct iscsi_spe_conn_mac_update {
1216 __le16 reserved0;
1217 __le16 conn_id;
1218 __le32 reserved1;
1219 __le16 remote_mac_addr_lo;
1220 __le16 remote_mac_addr_mid;
1221 __le16 remote_mac_addr_hi;
1222 u8 reserved2[2];
1223};
1224
1225
1226
1227
1228struct iscsi_spe_conn_offload {
1229 __le16 reserved0;
1230 __le16 conn_id;
1231 __le32 reserved1;
1232 struct iscsi_conn_offload_params iscsi;
1233 struct tcp_offload_params tcp;
1234};
1235
1236
1237
1238
1239struct iscsi_spe_conn_offload_option2 {
1240 __le16 reserved0;
1241 __le16 conn_id;
1242 __le32 reserved1;
1243 struct iscsi_conn_offload_params iscsi;
1244 struct tcp_offload_params_opt2 tcp;
1245};
1246
1247
1248struct iscsi_spe_conn_statistics {
1249 __le16 reserved0;
1250 __le16 conn_id;
1251 __le32 reserved1;
1252 u8 reset_stats;
1253 u8 reserved2[7];
1254 struct regpair stats_cnts_addr;
1255};
1256
1257
1258struct iscsi_spe_conn_termination {
1259 __le16 reserved0;
1260 __le16 conn_id;
1261 __le32 reserved1;
1262 u8 abortive;
1263 u8 reserved2[7];
1264 struct regpair queue_cnts_addr;
1265 struct regpair query_params_addr;
1266};
1267
1268
1269struct iscsi_spe_func_init {
1270 __le16 half_way_close_timeout;
1271 u8 num_sq_pages_in_ring;
1272 u8 num_r2tq_pages_in_ring;
1273 u8 num_uhq_pages_in_ring;
1274 u8 ll2_rx_queue_id;
1275 u8 flags;
1276#define ISCSI_SPE_FUNC_INIT_COUNTERS_EN_MASK 0x1
1277#define ISCSI_SPE_FUNC_INIT_COUNTERS_EN_SHIFT 0
1278#define ISCSI_SPE_FUNC_INIT_RESERVED0_MASK 0x7F
1279#define ISCSI_SPE_FUNC_INIT_RESERVED0_SHIFT 1
1280 struct iscsi_debug_modes debug_mode;
1281 u8 params;
1282#define ISCSI_SPE_FUNC_INIT_MAX_SYN_RT_MASK 0xF
1283#define ISCSI_SPE_FUNC_INIT_MAX_SYN_RT_SHIFT 0
1284#define ISCSI_SPE_FUNC_INIT_RESERVED1_MASK 0xF
1285#define ISCSI_SPE_FUNC_INIT_RESERVED1_SHIFT 4
1286 u8 reserved2[7];
1287 struct scsi_init_func_params func_params;
1288 struct scsi_init_func_queues q_params;
1289};
1290
1291
1292enum iscsi_task_type {
1293 ISCSI_TASK_TYPE_INITIATOR_WRITE,
1294 ISCSI_TASK_TYPE_INITIATOR_READ,
1295 ISCSI_TASK_TYPE_MIDPATH,
1296 ISCSI_TASK_TYPE_UNSOLIC,
1297 ISCSI_TASK_TYPE_EXCHCLEANUP,
1298 ISCSI_TASK_TYPE_IRRELEVANT,
1299 ISCSI_TASK_TYPE_TARGET_WRITE,
1300 ISCSI_TASK_TYPE_TARGET_READ,
1301 ISCSI_TASK_TYPE_TARGET_RESPONSE,
1302 ISCSI_TASK_TYPE_LOGIN_RESPONSE,
1303 ISCSI_TASK_TYPE_TARGET_IMM_W_DIF,
1304 MAX_ISCSI_TASK_TYPE
1305};
1306
1307
1308union iscsi_ttt_txlen_union {
1309 __le32 desired_tx_len;
1310 __le32 ttt;
1311};
1312
1313
1314struct iscsi_uhqe {
1315 __le32 reg1;
1316#define ISCSI_UHQE_PDU_PAYLOAD_LEN_MASK 0xFFFFF
1317#define ISCSI_UHQE_PDU_PAYLOAD_LEN_SHIFT 0
1318#define ISCSI_UHQE_LOCAL_COMP_MASK 0x1
1319#define ISCSI_UHQE_LOCAL_COMP_SHIFT 20
1320#define ISCSI_UHQE_TOGGLE_BIT_MASK 0x1
1321#define ISCSI_UHQE_TOGGLE_BIT_SHIFT 21
1322#define ISCSI_UHQE_PURE_PAYLOAD_MASK 0x1
1323#define ISCSI_UHQE_PURE_PAYLOAD_SHIFT 22
1324#define ISCSI_UHQE_LOGIN_RESPONSE_PDU_MASK 0x1
1325#define ISCSI_UHQE_LOGIN_RESPONSE_PDU_SHIFT 23
1326#define ISCSI_UHQE_TASK_ID_HI_MASK 0xFF
1327#define ISCSI_UHQE_TASK_ID_HI_SHIFT 24
1328 __le32 reg2;
1329#define ISCSI_UHQE_BUFFER_OFFSET_MASK 0xFFFFFF
1330#define ISCSI_UHQE_BUFFER_OFFSET_SHIFT 0
1331#define ISCSI_UHQE_TASK_ID_LO_MASK 0xFF
1332#define ISCSI_UHQE_TASK_ID_LO_SHIFT 24
1333};
1334
1335
1336struct iscsi_wqe {
1337 __le16 task_id;
1338 u8 flags;
1339#define ISCSI_WQE_WQE_TYPE_MASK 0x7
1340#define ISCSI_WQE_WQE_TYPE_SHIFT 0
1341#define ISCSI_WQE_NUM_SGES_MASK 0xF
1342#define ISCSI_WQE_NUM_SGES_SHIFT 3
1343#define ISCSI_WQE_RESPONSE_MASK 0x1
1344#define ISCSI_WQE_RESPONSE_SHIFT 7
1345 struct iscsi_dif_flags prot_flags;
1346 __le32 contlen_cdbsize;
1347#define ISCSI_WQE_CONT_LEN_MASK 0xFFFFFF
1348#define ISCSI_WQE_CONT_LEN_SHIFT 0
1349#define ISCSI_WQE_CDB_SIZE_MASK 0xFF
1350#define ISCSI_WQE_CDB_SIZE_SHIFT 24
1351};
1352
1353
1354enum iscsi_wqe_type {
1355 ISCSI_WQE_TYPE_NORMAL,
1356 ISCSI_WQE_TYPE_TASK_CLEANUP,
1357 ISCSI_WQE_TYPE_MIDDLE_PATH,
1358 ISCSI_WQE_TYPE_LOGIN,
1359 ISCSI_WQE_TYPE_FIRST_R2T_CONT,
1360 ISCSI_WQE_TYPE_NONFIRST_R2T_CONT,
1361 ISCSI_WQE_TYPE_RESPONSE,
1362 MAX_ISCSI_WQE_TYPE
1363};
1364
1365
1366struct iscsi_xhqe {
1367 union iscsi_ttt_txlen_union ttt_or_txlen;
1368 __le32 exp_stat_sn;
1369 struct iscsi_dif_flags prot_flags;
1370 u8 total_ahs_length;
1371 u8 opcode;
1372 u8 flags;
1373#define ISCSI_XHQE_FINAL_MASK 0x1
1374#define ISCSI_XHQE_FINAL_SHIFT 0
1375#define ISCSI_XHQE_STATUS_BIT_MASK 0x1
1376#define ISCSI_XHQE_STATUS_BIT_SHIFT 1
1377#define ISCSI_XHQE_NUM_SGES_MASK 0xF
1378#define ISCSI_XHQE_NUM_SGES_SHIFT 2
1379#define ISCSI_XHQE_RESERVED0_MASK 0x3
1380#define ISCSI_XHQE_RESERVED0_SHIFT 6
1381 union iscsi_seq_num seq_num;
1382 __le16 reserved1;
1383};
1384
1385
1386struct mstorm_iscsi_stats_drv {
1387 struct regpair iscsi_rx_dropped_pdus_task_not_valid;
1388 struct regpair iscsi_rx_dup_ack_cnt;
1389};
1390
1391
1392struct pstorm_iscsi_stats_drv {
1393 struct regpair iscsi_tx_bytes_cnt;
1394 struct regpair iscsi_tx_packet_cnt;
1395};
1396
1397
1398struct tstorm_iscsi_stats_drv {
1399 struct regpair iscsi_rx_bytes_cnt;
1400 struct regpair iscsi_rx_packet_cnt;
1401 struct regpair iscsi_rx_new_ooo_isle_events_cnt;
1402 struct regpair iscsi_rx_tcp_payload_bytes_cnt;
1403 struct regpair iscsi_rx_tcp_pkt_cnt;
1404 struct regpair iscsi_rx_pure_ack_cnt;
1405 __le32 iscsi_cmdq_threshold_cnt;
1406 __le32 iscsi_rq_threshold_cnt;
1407 __le32 iscsi_immq_threshold_cnt;
1408};
1409
1410
1411struct ustorm_iscsi_stats_drv {
1412 struct regpair iscsi_rx_data_pdu_cnt;
1413 struct regpair iscsi_rx_r2t_pdu_cnt;
1414 struct regpair iscsi_rx_total_pdu_cnt;
1415};
1416
1417
1418struct xstorm_iscsi_stats_drv {
1419 struct regpair iscsi_tx_go_to_slow_start_event_cnt;
1420 struct regpair iscsi_tx_fast_retransmit_event_cnt;
1421 struct regpair iscsi_tx_pure_ack_cnt;
1422 struct regpair iscsi_tx_delayed_ack_cnt;
1423};
1424
1425
1426struct ystorm_iscsi_stats_drv {
1427 struct regpair iscsi_tx_data_pdu_cnt;
1428 struct regpair iscsi_tx_r2t_pdu_cnt;
1429 struct regpair iscsi_tx_total_pdu_cnt;
1430 struct regpair iscsi_tx_tcp_payload_bytes_cnt;
1431 struct regpair iscsi_tx_tcp_pkt_cnt;
1432};
1433
1434struct e4_tstorm_iscsi_task_ag_ctx {
1435 u8 byte0;
1436 u8 byte1;
1437 __le16 word0;
1438 u8 flags0;
1439#define E4_TSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_MASK 0xF
1440#define E4_TSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_SHIFT 0
1441#define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT0_MASK 0x1
1442#define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT0_SHIFT 4
1443#define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT1_MASK 0x1
1444#define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT 5
1445#define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT2_MASK 0x1
1446#define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT2_SHIFT 6
1447#define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT3_MASK 0x1
1448#define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT3_SHIFT 7
1449 u8 flags1;
1450#define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT4_MASK 0x1
1451#define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT4_SHIFT 0
1452#define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT5_MASK 0x1
1453#define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT5_SHIFT 1
1454#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF0_MASK 0x3
1455#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF0_SHIFT 2
1456#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF1_MASK 0x3
1457#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF1_SHIFT 4
1458#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF2_MASK 0x3
1459#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF2_SHIFT 6
1460 u8 flags2;
1461#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF3_MASK 0x3
1462#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF3_SHIFT 0
1463#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF4_MASK 0x3
1464#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF4_SHIFT 2
1465#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF5_MASK 0x3
1466#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF5_SHIFT 4
1467#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF6_MASK 0x3
1468#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF6_SHIFT 6
1469 u8 flags3;
1470#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF7_MASK 0x3
1471#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF7_SHIFT 0
1472#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF0EN_MASK 0x1
1473#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF0EN_SHIFT 2
1474#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF1EN_MASK 0x1
1475#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF1EN_SHIFT 3
1476#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF2EN_MASK 0x1
1477#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF2EN_SHIFT 4
1478#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF3EN_MASK 0x1
1479#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF3EN_SHIFT 5
1480#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF4EN_MASK 0x1
1481#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF4EN_SHIFT 6
1482#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF5EN_MASK 0x1
1483#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF5EN_SHIFT 7
1484 u8 flags4;
1485#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF6EN_MASK 0x1
1486#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF6EN_SHIFT 0
1487#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF7EN_MASK 0x1
1488#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF7EN_SHIFT 1
1489#define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE0EN_MASK 0x1
1490#define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE0EN_SHIFT 2
1491#define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1
1492#define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 3
1493#define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE2EN_MASK 0x1
1494#define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE2EN_SHIFT 4
1495#define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1
1496#define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 5
1497#define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1
1498#define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 6
1499#define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1
1500#define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 7
1501 u8 byte2;
1502 __le16 word1;
1503 __le32 reg0;
1504 u8 byte3;
1505 u8 byte4;
1506 __le16 word2;
1507 __le16 word3;
1508 __le16 word4;
1509 __le32 reg1;
1510 __le32 reg2;
1511};
1512
1513
1514struct iscsi_db_data {
1515 u8 params;
1516#define ISCSI_DB_DATA_DEST_MASK 0x3
1517#define ISCSI_DB_DATA_DEST_SHIFT 0
1518#define ISCSI_DB_DATA_AGG_CMD_MASK 0x3
1519#define ISCSI_DB_DATA_AGG_CMD_SHIFT 2
1520#define ISCSI_DB_DATA_BYPASS_EN_MASK 0x1
1521#define ISCSI_DB_DATA_BYPASS_EN_SHIFT 4
1522#define ISCSI_DB_DATA_RESERVED_MASK 0x1
1523#define ISCSI_DB_DATA_RESERVED_SHIFT 5
1524#define ISCSI_DB_DATA_AGG_VAL_SEL_MASK 0x3
1525#define ISCSI_DB_DATA_AGG_VAL_SEL_SHIFT 6
1526 u8 agg_flags;
1527 __le16 sq_prod;
1528};
1529
1530#endif
1531
