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Linux kernel mirror (for testing)
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1/* QLogic qed NIC Driver
2 * Copyright (c) 2015-2017 QLogic Corporation
3 *
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
9 *
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
12 * conditions are met:
13 *
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
16 * disclaimer.
17 *
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and /or other materials
21 * provided with the distribution.
22 *
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30 * SOFTWARE.
31 */
32
33#ifndef __ISCSI_COMMON__
34#define __ISCSI_COMMON__
35/**********************/
36/* ISCSI FW CONSTANTS */
37/**********************/
38
39/* iSCSI HSI constants */
40#define ISCSI_DEFAULT_MTU (1500)
41
42/* KWQ (kernel work queue) layer codes */
43#define ISCSI_SLOW_PATH_LAYER_CODE (6)
44
45/* iSCSI parameter defaults */
46#define ISCSI_DEFAULT_HEADER_DIGEST (0)
47#define ISCSI_DEFAULT_DATA_DIGEST (0)
48#define ISCSI_DEFAULT_INITIAL_R2T (1)
49#define ISCSI_DEFAULT_IMMEDIATE_DATA (1)
50#define ISCSI_DEFAULT_MAX_PDU_LENGTH (0x2000)
51#define ISCSI_DEFAULT_FIRST_BURST_LENGTH (0x10000)
52#define ISCSI_DEFAULT_MAX_BURST_LENGTH (0x40000)
53#define ISCSI_DEFAULT_MAX_OUTSTANDING_R2T (1)
54
55/* iSCSI parameter limits */
56#define ISCSI_MIN_VAL_MAX_PDU_LENGTH (0x200)
57#define ISCSI_MAX_VAL_MAX_PDU_LENGTH (0xffffff)
58#define ISCSI_MIN_VAL_BURST_LENGTH (0x200)
59#define ISCSI_MAX_VAL_BURST_LENGTH (0xffffff)
60#define ISCSI_MIN_VAL_MAX_OUTSTANDING_R2T (1)
61#define ISCSI_MAX_VAL_MAX_OUTSTANDING_R2T (0xff)
62
63#define ISCSI_AHS_CNTL_SIZE 4
64
65#define ISCSI_WQE_NUM_SGES_SLOWIO (0xf)
66
67/* iSCSI reserved params */
68#define ISCSI_ITT_ALL_ONES (0xffffffff)
69#define ISCSI_TTT_ALL_ONES (0xffffffff)
70
71#define ISCSI_OPTION_1_OFF_CHIP_TCP 1
72#define ISCSI_OPTION_2_ON_CHIP_TCP 2
73
74#define ISCSI_INITIATOR_MODE 0
75#define ISCSI_TARGET_MODE 1
76
77/* iSCSI request op codes */
78#define ISCSI_OPCODE_NOP_OUT_NO_IMM (0)
79#define ISCSI_OPCODE_NOP_OUT ( \
80 ISCSI_OPCODE_NOP_OUT_NO_IMM | 0x40)
81#define ISCSI_OPCODE_SCSI_CMD_NO_IMM (1)
82#define ISCSI_OPCODE_SCSI_CMD ( \
83 ISCSI_OPCODE_SCSI_CMD_NO_IMM | 0x40)
84#define ISCSI_OPCODE_TMF_REQUEST_NO_IMM (2)
85#define ISCSI_OPCODE_TMF_REQUEST ( \
86 ISCSI_OPCODE_TMF_REQUEST_NO_IMM | 0x40)
87#define ISCSI_OPCODE_LOGIN_REQUEST_NO_IMM (3)
88#define ISCSI_OPCODE_LOGIN_REQUEST ( \
89 ISCSI_OPCODE_LOGIN_REQUEST_NO_IMM | 0x40)
90#define ISCSI_OPCODE_TEXT_REQUEST_NO_IMM (4)
91#define ISCSI_OPCODE_TEXT_REQUEST ( \
92 ISCSI_OPCODE_TEXT_REQUEST_NO_IMM | 0x40)
93#define ISCSI_OPCODE_DATA_OUT (5)
94#define ISCSI_OPCODE_LOGOUT_REQUEST_NO_IMM (6)
95#define ISCSI_OPCODE_LOGOUT_REQUEST ( \
96 ISCSI_OPCODE_LOGOUT_REQUEST_NO_IMM | 0x40)
97
98/* iSCSI response/messages op codes */
99#define ISCSI_OPCODE_NOP_IN (0x20)
100#define ISCSI_OPCODE_SCSI_RESPONSE (0x21)
101#define ISCSI_OPCODE_TMF_RESPONSE (0x22)
102#define ISCSI_OPCODE_LOGIN_RESPONSE (0x23)
103#define ISCSI_OPCODE_TEXT_RESPONSE (0x24)
104#define ISCSI_OPCODE_DATA_IN (0x25)
105#define ISCSI_OPCODE_LOGOUT_RESPONSE (0x26)
106#define ISCSI_OPCODE_R2T (0x31)
107#define ISCSI_OPCODE_ASYNC_MSG (0x32)
108#define ISCSI_OPCODE_REJECT (0x3f)
109
110/* iSCSI stages */
111#define ISCSI_STAGE_SECURITY_NEGOTIATION (0)
112#define ISCSI_STAGE_LOGIN_OPERATIONAL_NEGOTIATION (1)
113#define ISCSI_STAGE_FULL_FEATURE_PHASE (3)
114
115/* iSCSI CQE errors */
116#define CQE_ERROR_BITMAP_DATA_DIGEST (0x08)
117#define CQE_ERROR_BITMAP_RCV_ON_INVALID_CONN (0x10)
118#define CQE_ERROR_BITMAP_DATA_TRUNCATED (0x20)
119
120struct cqe_error_bitmap {
121 u8 cqe_error_status_bits;
122#define CQE_ERROR_BITMAP_DIF_ERR_BITS_MASK 0x7
123#define CQE_ERROR_BITMAP_DIF_ERR_BITS_SHIFT 0
124#define CQE_ERROR_BITMAP_DATA_DIGEST_ERR_MASK 0x1
125#define CQE_ERROR_BITMAP_DATA_DIGEST_ERR_SHIFT 3
126#define CQE_ERROR_BITMAP_RCV_ON_INVALID_CONN_MASK 0x1
127#define CQE_ERROR_BITMAP_RCV_ON_INVALID_CONN_SHIFT 4
128#define CQE_ERROR_BITMAP_DATA_TRUNCATED_ERR_MASK 0x1
129#define CQE_ERROR_BITMAP_DATA_TRUNCATED_ERR_SHIFT 5
130#define CQE_ERROR_BITMAP_UNDER_RUN_ERR_MASK 0x1
131#define CQE_ERROR_BITMAP_UNDER_RUN_ERR_SHIFT 6
132#define CQE_ERROR_BITMAP_RESERVED2_MASK 0x1
133#define CQE_ERROR_BITMAP_RESERVED2_SHIFT 7
134};
135
136union cqe_error_status {
137 u8 error_status;
138 struct cqe_error_bitmap error_bits;
139};
140
141struct data_hdr {
142 __le32 data[12];
143};
144
145struct iscsi_async_msg_hdr {
146 __le16 reserved0;
147 u8 flags_attr;
148#define ISCSI_ASYNC_MSG_HDR_RSRV_MASK 0x7F
149#define ISCSI_ASYNC_MSG_HDR_RSRV_SHIFT 0
150#define ISCSI_ASYNC_MSG_HDR_CONST1_MASK 0x1
151#define ISCSI_ASYNC_MSG_HDR_CONST1_SHIFT 7
152 u8 opcode;
153 __le32 hdr_second_dword;
154#define ISCSI_ASYNC_MSG_HDR_DATA_SEG_LEN_MASK 0xFFFFFF
155#define ISCSI_ASYNC_MSG_HDR_DATA_SEG_LEN_SHIFT 0
156#define ISCSI_ASYNC_MSG_HDR_TOTAL_AHS_LEN_MASK 0xFF
157#define ISCSI_ASYNC_MSG_HDR_TOTAL_AHS_LEN_SHIFT 24
158 struct regpair lun;
159 __le32 all_ones;
160 __le32 reserved1;
161 __le32 stat_sn;
162 __le32 exp_cmd_sn;
163 __le32 max_cmd_sn;
164 __le16 param1_rsrv;
165 u8 async_vcode;
166 u8 async_event;
167 __le16 param3_rsrv;
168 __le16 param2_rsrv;
169 __le32 reserved7;
170};
171
172struct iscsi_cmd_hdr {
173 __le16 reserved1;
174 u8 flags_attr;
175#define ISCSI_CMD_HDR_ATTR_MASK 0x7
176#define ISCSI_CMD_HDR_ATTR_SHIFT 0
177#define ISCSI_CMD_HDR_RSRV_MASK 0x3
178#define ISCSI_CMD_HDR_RSRV_SHIFT 3
179#define ISCSI_CMD_HDR_WRITE_MASK 0x1
180#define ISCSI_CMD_HDR_WRITE_SHIFT 5
181#define ISCSI_CMD_HDR_READ_MASK 0x1
182#define ISCSI_CMD_HDR_READ_SHIFT 6
183#define ISCSI_CMD_HDR_FINAL_MASK 0x1
184#define ISCSI_CMD_HDR_FINAL_SHIFT 7
185 u8 opcode;
186 __le32 hdr_second_dword;
187#define ISCSI_CMD_HDR_DATA_SEG_LEN_MASK 0xFFFFFF
188#define ISCSI_CMD_HDR_DATA_SEG_LEN_SHIFT 0
189#define ISCSI_CMD_HDR_TOTAL_AHS_LEN_MASK 0xFF
190#define ISCSI_CMD_HDR_TOTAL_AHS_LEN_SHIFT 24
191 struct regpair lun;
192 __le32 itt;
193 __le32 expected_transfer_length;
194 __le32 cmd_sn;
195 __le32 exp_stat_sn;
196 __le32 cdb[4];
197};
198
199struct iscsi_common_hdr {
200 u8 hdr_status;
201 u8 hdr_response;
202 u8 hdr_flags;
203 u8 hdr_first_byte;
204#define ISCSI_COMMON_HDR_OPCODE_MASK 0x3F
205#define ISCSI_COMMON_HDR_OPCODE_SHIFT 0
206#define ISCSI_COMMON_HDR_IMM_MASK 0x1
207#define ISCSI_COMMON_HDR_IMM_SHIFT 6
208#define ISCSI_COMMON_HDR_RSRV_MASK 0x1
209#define ISCSI_COMMON_HDR_RSRV_SHIFT 7
210 __le32 hdr_second_dword;
211#define ISCSI_COMMON_HDR_DATA_SEG_LEN_MASK 0xFFFFFF
212#define ISCSI_COMMON_HDR_DATA_SEG_LEN_SHIFT 0
213#define ISCSI_COMMON_HDR_TOTAL_AHS_LEN_MASK 0xFF
214#define ISCSI_COMMON_HDR_TOTAL_AHS_LEN_SHIFT 24
215 struct regpair lun_reserved;
216 __le32 itt;
217 __le32 ttt;
218 __le32 cmdstat_sn;
219 __le32 exp_statcmd_sn;
220 __le32 max_cmd_sn;
221 __le32 data[3];
222};
223
224struct iscsi_conn_offload_params {
225 struct regpair sq_pbl_addr;
226 struct regpair r2tq_pbl_addr;
227 struct regpair xhq_pbl_addr;
228 struct regpair uhq_pbl_addr;
229 __le32 initial_ack;
230 __le16 physical_q0;
231 __le16 physical_q1;
232 u8 flags;
233#define ISCSI_CONN_OFFLOAD_PARAMS_TCP_ON_CHIP_1B_MASK 0x1
234#define ISCSI_CONN_OFFLOAD_PARAMS_TCP_ON_CHIP_1B_SHIFT 0
235#define ISCSI_CONN_OFFLOAD_PARAMS_TARGET_MODE_MASK 0x1
236#define ISCSI_CONN_OFFLOAD_PARAMS_TARGET_MODE_SHIFT 1
237#define ISCSI_CONN_OFFLOAD_PARAMS_RESTRICTED_MODE_MASK 0x1
238#define ISCSI_CONN_OFFLOAD_PARAMS_RESTRICTED_MODE_SHIFT 2
239#define ISCSI_CONN_OFFLOAD_PARAMS_RESERVED1_MASK 0x1F
240#define ISCSI_CONN_OFFLOAD_PARAMS_RESERVED1_SHIFT 3
241 u8 pbl_page_size_log;
242 u8 pbe_page_size_log;
243 u8 default_cq;
244 __le32 stat_sn;
245};
246
247struct iscsi_slow_path_hdr {
248 u8 op_code;
249 u8 flags;
250#define ISCSI_SLOW_PATH_HDR_RESERVED0_MASK 0xF
251#define ISCSI_SLOW_PATH_HDR_RESERVED0_SHIFT 0
252#define ISCSI_SLOW_PATH_HDR_LAYER_CODE_MASK 0x7
253#define ISCSI_SLOW_PATH_HDR_LAYER_CODE_SHIFT 4
254#define ISCSI_SLOW_PATH_HDR_RESERVED1_MASK 0x1
255#define ISCSI_SLOW_PATH_HDR_RESERVED1_SHIFT 7
256};
257
258struct iscsi_conn_update_ramrod_params {
259 struct iscsi_slow_path_hdr hdr;
260 __le16 conn_id;
261 __le32 fw_cid;
262 u8 flags;
263#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_HD_EN_MASK 0x1
264#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_HD_EN_SHIFT 0
265#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DD_EN_MASK 0x1
266#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DD_EN_SHIFT 1
267#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_INITIAL_R2T_MASK 0x1
268#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_INITIAL_R2T_SHIFT 2
269#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_IMMEDIATE_DATA_MASK 0x1
270#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_IMMEDIATE_DATA_SHIFT 3
271#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DIF_BLOCK_SIZE_MASK 0x1
272#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DIF_BLOCK_SIZE_SHIFT 4
273#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DIF_ON_HOST_EN_MASK 0x1
274#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DIF_ON_HOST_EN_SHIFT 5
275#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_RESERVED1_MASK 0x3
276#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_RESERVED1_SHIFT 6
277 u8 reserved0[3];
278 __le32 max_seq_size;
279 __le32 max_send_pdu_length;
280 __le32 max_recv_pdu_length;
281 __le32 first_seq_length;
282 __le32 exp_stat_sn;
283};
284
285struct iscsi_ext_cdb_cmd_hdr {
286 __le16 reserved1;
287 u8 flags_attr;
288#define ISCSI_EXT_CDB_CMD_HDR_ATTR_MASK 0x7
289#define ISCSI_EXT_CDB_CMD_HDR_ATTR_SHIFT 0
290#define ISCSI_EXT_CDB_CMD_HDR_RSRV_MASK 0x3
291#define ISCSI_EXT_CDB_CMD_HDR_RSRV_SHIFT 3
292#define ISCSI_EXT_CDB_CMD_HDR_WRITE_MASK 0x1
293#define ISCSI_EXT_CDB_CMD_HDR_WRITE_SHIFT 5
294#define ISCSI_EXT_CDB_CMD_HDR_READ_MASK 0x1
295#define ISCSI_EXT_CDB_CMD_HDR_READ_SHIFT 6
296#define ISCSI_EXT_CDB_CMD_HDR_FINAL_MASK 0x1
297#define ISCSI_EXT_CDB_CMD_HDR_FINAL_SHIFT 7
298 u8 opcode;
299 __le32 hdr_second_dword;
300#define ISCSI_EXT_CDB_CMD_HDR_DATA_SEG_LEN_MASK 0xFFFFFF
301#define ISCSI_EXT_CDB_CMD_HDR_DATA_SEG_LEN_SHIFT 0
302#define ISCSI_EXT_CDB_CMD_HDR_CDB_SIZE_MASK 0xFF
303#define ISCSI_EXT_CDB_CMD_HDR_CDB_SIZE_SHIFT 24
304 struct regpair lun;
305 __le32 itt;
306 __le32 expected_transfer_length;
307 __le32 cmd_sn;
308 __le32 exp_stat_sn;
309 struct scsi_sge cdb_sge;
310};
311
312struct iscsi_login_req_hdr {
313 u8 version_min;
314 u8 version_max;
315 u8 flags_attr;
316#define ISCSI_LOGIN_REQ_HDR_NSG_MASK 0x3
317#define ISCSI_LOGIN_REQ_HDR_NSG_SHIFT 0
318#define ISCSI_LOGIN_REQ_HDR_CSG_MASK 0x3
319#define ISCSI_LOGIN_REQ_HDR_CSG_SHIFT 2
320#define ISCSI_LOGIN_REQ_HDR_RSRV_MASK 0x3
321#define ISCSI_LOGIN_REQ_HDR_RSRV_SHIFT 4
322#define ISCSI_LOGIN_REQ_HDR_C_MASK 0x1
323#define ISCSI_LOGIN_REQ_HDR_C_SHIFT 6
324#define ISCSI_LOGIN_REQ_HDR_T_MASK 0x1
325#define ISCSI_LOGIN_REQ_HDR_T_SHIFT 7
326 u8 opcode;
327 __le32 hdr_second_dword;
328#define ISCSI_LOGIN_REQ_HDR_DATA_SEG_LEN_MASK 0xFFFFFF
329#define ISCSI_LOGIN_REQ_HDR_DATA_SEG_LEN_SHIFT 0
330#define ISCSI_LOGIN_REQ_HDR_TOTAL_AHS_LEN_MASK 0xFF
331#define ISCSI_LOGIN_REQ_HDR_TOTAL_AHS_LEN_SHIFT 24
332 __le32 isid_tabc;
333 __le16 tsih;
334 __le16 isid_d;
335 __le32 itt;
336 __le16 reserved1;
337 __le16 cid;
338 __le32 cmd_sn;
339 __le32 exp_stat_sn;
340 __le32 reserved2[4];
341};
342
343struct iscsi_logout_req_hdr {
344 __le16 reserved0;
345 u8 reason_code;
346 u8 opcode;
347 __le32 reserved1;
348 __le32 reserved2[2];
349 __le32 itt;
350 __le16 reserved3;
351 __le16 cid;
352 __le32 cmd_sn;
353 __le32 exp_stat_sn;
354 __le32 reserved4[4];
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
377struct iscsi_data_in_hdr {
378 u8 status_rsvd;
379 u8 reserved1;
380 u8 flags;
381#define ISCSI_DATA_IN_HDR_STATUS_MASK 0x1
382#define ISCSI_DATA_IN_HDR_STATUS_SHIFT 0
383#define ISCSI_DATA_IN_HDR_UNDERFLOW_MASK 0x1
384#define ISCSI_DATA_IN_HDR_UNDERFLOW_SHIFT 1
385#define ISCSI_DATA_IN_HDR_OVERFLOW_MASK 0x1
386#define ISCSI_DATA_IN_HDR_OVERFLOW_SHIFT 2
387#define ISCSI_DATA_IN_HDR_RSRV_MASK 0x7
388#define ISCSI_DATA_IN_HDR_RSRV_SHIFT 3
389#define ISCSI_DATA_IN_HDR_ACK_MASK 0x1
390#define ISCSI_DATA_IN_HDR_ACK_SHIFT 6
391#define ISCSI_DATA_IN_HDR_FINAL_MASK 0x1
392#define ISCSI_DATA_IN_HDR_FINAL_SHIFT 7
393 u8 opcode;
394 __le32 reserved2;
395 struct regpair lun;
396 __le32 itt;
397 __le32 ttt;
398 __le32 stat_sn;
399 __le32 exp_cmd_sn;
400 __le32 max_cmd_sn;
401 __le32 data_sn;
402 __le32 buffer_offset;
403 __le32 residual_count;
404};
405
406struct iscsi_r2t_hdr {
407 u8 reserved0[3];
408 u8 opcode;
409 __le32 reserved2;
410 struct regpair lun;
411 __le32 itt;
412 __le32 ttt;
413 __le32 stat_sn;
414 __le32 exp_cmd_sn;
415 __le32 max_cmd_sn;
416 __le32 r2t_sn;
417 __le32 buffer_offset;
418 __le32 desired_data_trns_len;
419};
420
421struct iscsi_nop_out_hdr {
422 __le16 reserved1;
423 u8 flags_attr;
424#define ISCSI_NOP_OUT_HDR_RSRV_MASK 0x7F
425#define ISCSI_NOP_OUT_HDR_RSRV_SHIFT 0
426#define ISCSI_NOP_OUT_HDR_CONST1_MASK 0x1
427#define ISCSI_NOP_OUT_HDR_CONST1_SHIFT 7
428 u8 opcode;
429 __le32 reserved2;
430 struct regpair lun;
431 __le32 itt;
432 __le32 ttt;
433 __le32 cmd_sn;
434 __le32 exp_stat_sn;
435 __le32 reserved3;
436 __le32 reserved4;
437 __le32 reserved5;
438 __le32 reserved6;
439};
440
441struct iscsi_nop_in_hdr {
442 __le16 reserved0;
443 u8 flags_attr;
444#define ISCSI_NOP_IN_HDR_RSRV_MASK 0x7F
445#define ISCSI_NOP_IN_HDR_RSRV_SHIFT 0
446#define ISCSI_NOP_IN_HDR_CONST1_MASK 0x1
447#define ISCSI_NOP_IN_HDR_CONST1_SHIFT 7
448 u8 opcode;
449 __le32 hdr_second_dword;
450#define ISCSI_NOP_IN_HDR_DATA_SEG_LEN_MASK 0xFFFFFF
451#define ISCSI_NOP_IN_HDR_DATA_SEG_LEN_SHIFT 0
452#define ISCSI_NOP_IN_HDR_TOTAL_AHS_LEN_MASK 0xFF
453#define ISCSI_NOP_IN_HDR_TOTAL_AHS_LEN_SHIFT 24
454 struct regpair lun;
455 __le32 itt;
456 __le32 ttt;
457 __le32 stat_sn;
458 __le32 exp_cmd_sn;
459 __le32 max_cmd_sn;
460 __le32 reserved5;
461 __le32 reserved6;
462 __le32 reserved7;
463};
464
465struct iscsi_login_response_hdr {
466 u8 version_active;
467 u8 version_max;
468 u8 flags_attr;
469#define ISCSI_LOGIN_RESPONSE_HDR_NSG_MASK 0x3
470#define ISCSI_LOGIN_RESPONSE_HDR_NSG_SHIFT 0
471#define ISCSI_LOGIN_RESPONSE_HDR_CSG_MASK 0x3
472#define ISCSI_LOGIN_RESPONSE_HDR_CSG_SHIFT 2
473#define ISCSI_LOGIN_RESPONSE_HDR_RSRV_MASK 0x3
474#define ISCSI_LOGIN_RESPONSE_HDR_RSRV_SHIFT 4
475#define ISCSI_LOGIN_RESPONSE_HDR_C_MASK 0x1
476#define ISCSI_LOGIN_RESPONSE_HDR_C_SHIFT 6
477#define ISCSI_LOGIN_RESPONSE_HDR_T_MASK 0x1
478#define ISCSI_LOGIN_RESPONSE_HDR_T_SHIFT 7
479 u8 opcode;
480 __le32 hdr_second_dword;
481#define ISCSI_LOGIN_RESPONSE_HDR_DATA_SEG_LEN_MASK 0xFFFFFF
482#define ISCSI_LOGIN_RESPONSE_HDR_DATA_SEG_LEN_SHIFT 0
483#define ISCSI_LOGIN_RESPONSE_HDR_TOTAL_AHS_LEN_MASK 0xFF
484#define ISCSI_LOGIN_RESPONSE_HDR_TOTAL_AHS_LEN_SHIFT 24
485 __le32 isid_tabc;
486 __le16 tsih;
487 __le16 isid_d;
488 __le32 itt;
489 __le32 reserved1;
490 __le32 stat_sn;
491 __le32 exp_cmd_sn;
492 __le32 max_cmd_sn;
493 __le16 reserved2;
494 u8 status_detail;
495 u8 status_class;
496 __le32 reserved4[2];
497};
498
499struct iscsi_logout_response_hdr {
500 u8 reserved1;
501 u8 response;
502 u8 flags;
503 u8 opcode;
504 __le32 hdr_second_dword;
505#define ISCSI_LOGOUT_RESPONSE_HDR_DATA_SEG_LEN_MASK 0xFFFFFF
506#define ISCSI_LOGOUT_RESPONSE_HDR_DATA_SEG_LEN_SHIFT 0
507#define ISCSI_LOGOUT_RESPONSE_HDR_TOTAL_AHS_LEN_MASK 0xFF
508#define ISCSI_LOGOUT_RESPONSE_HDR_TOTAL_AHS_LEN_SHIFT 24
509 __le32 reserved2[2];
510 __le32 itt;
511 __le32 reserved3;
512 __le32 stat_sn;
513 __le32 exp_cmd_sn;
514 __le32 max_cmd_sn;
515 __le32 reserved4;
516 __le16 time_2_retain;
517 __le16 time_2_wait;
518 __le32 reserved5[1];
519};
520
521struct iscsi_text_request_hdr {
522 __le16 reserved0;
523 u8 flags_attr;
524#define ISCSI_TEXT_REQUEST_HDR_RSRV_MASK 0x3F
525#define ISCSI_TEXT_REQUEST_HDR_RSRV_SHIFT 0
526#define ISCSI_TEXT_REQUEST_HDR_C_MASK 0x1
527#define ISCSI_TEXT_REQUEST_HDR_C_SHIFT 6
528#define ISCSI_TEXT_REQUEST_HDR_F_MASK 0x1
529#define ISCSI_TEXT_REQUEST_HDR_F_SHIFT 7
530 u8 opcode;
531 __le32 hdr_second_dword;
532#define ISCSI_TEXT_REQUEST_HDR_DATA_SEG_LEN_MASK 0xFFFFFF
533#define ISCSI_TEXT_REQUEST_HDR_DATA_SEG_LEN_SHIFT 0
534#define ISCSI_TEXT_REQUEST_HDR_TOTAL_AHS_LEN_MASK 0xFF
535#define ISCSI_TEXT_REQUEST_HDR_TOTAL_AHS_LEN_SHIFT 24
536 struct regpair lun;
537 __le32 itt;
538 __le32 ttt;
539 __le32 cmd_sn;
540 __le32 exp_stat_sn;
541 __le32 reserved4[4];
542};
543
544struct iscsi_text_response_hdr {
545 __le16 reserved1;
546 u8 flags;
547#define ISCSI_TEXT_RESPONSE_HDR_RSRV_MASK 0x3F
548#define ISCSI_TEXT_RESPONSE_HDR_RSRV_SHIFT 0
549#define ISCSI_TEXT_RESPONSE_HDR_C_MASK 0x1
550#define ISCSI_TEXT_RESPONSE_HDR_C_SHIFT 6
551#define ISCSI_TEXT_RESPONSE_HDR_F_MASK 0x1
552#define ISCSI_TEXT_RESPONSE_HDR_F_SHIFT 7
553 u8 opcode;
554 __le32 hdr_second_dword;
555#define ISCSI_TEXT_RESPONSE_HDR_DATA_SEG_LEN_MASK 0xFFFFFF
556#define ISCSI_TEXT_RESPONSE_HDR_DATA_SEG_LEN_SHIFT 0
557#define ISCSI_TEXT_RESPONSE_HDR_TOTAL_AHS_LEN_MASK 0xFF
558#define ISCSI_TEXT_RESPONSE_HDR_TOTAL_AHS_LEN_SHIFT 24
559 struct regpair lun;
560 __le32 itt;
561 __le32 ttt;
562 __le32 stat_sn;
563 __le32 exp_cmd_sn;
564 __le32 max_cmd_sn;
565 __le32 reserved4[3];
566};
567
568struct iscsi_tmf_request_hdr {
569 __le16 reserved0;
570 u8 function;
571 u8 opcode;
572 __le32 hdr_second_dword;
573#define ISCSI_TMF_REQUEST_HDR_DATA_SEG_LEN_MASK 0xFFFFFF
574#define ISCSI_TMF_REQUEST_HDR_DATA_SEG_LEN_SHIFT 0
575#define ISCSI_TMF_REQUEST_HDR_TOTAL_AHS_LEN_MASK 0xFF
576#define ISCSI_TMF_REQUEST_HDR_TOTAL_AHS_LEN_SHIFT 24
577 struct regpair lun;
578 __le32 itt;
579 __le32 rtt;
580 __le32 cmd_sn;
581 __le32 exp_stat_sn;
582 __le32 ref_cmd_sn;
583 __le32 exp_data_sn;
584 __le32 reserved4[2];
585};
586
587struct iscsi_tmf_response_hdr {
588 u8 reserved2;
589 u8 hdr_response;
590 u8 hdr_flags;
591 u8 opcode;
592 __le32 hdr_second_dword;
593#define ISCSI_TMF_RESPONSE_HDR_DATA_SEG_LEN_MASK 0xFFFFFF
594#define ISCSI_TMF_RESPONSE_HDR_DATA_SEG_LEN_SHIFT 0
595#define ISCSI_TMF_RESPONSE_HDR_TOTAL_AHS_LEN_MASK 0xFF
596#define ISCSI_TMF_RESPONSE_HDR_TOTAL_AHS_LEN_SHIFT 24
597 struct regpair reserved0;
598 __le32 itt;
599 __le32 reserved1;
600 __le32 stat_sn;
601 __le32 exp_cmd_sn;
602 __le32 max_cmd_sn;
603 __le32 reserved4[3];
604};
605
606struct iscsi_response_hdr {
607 u8 hdr_status;
608 u8 hdr_response;
609 u8 hdr_flags;
610 u8 opcode;
611 __le32 hdr_second_dword;
612#define ISCSI_RESPONSE_HDR_DATA_SEG_LEN_MASK 0xFFFFFF
613#define ISCSI_RESPONSE_HDR_DATA_SEG_LEN_SHIFT 0
614#define ISCSI_RESPONSE_HDR_TOTAL_AHS_LEN_MASK 0xFF
615#define ISCSI_RESPONSE_HDR_TOTAL_AHS_LEN_SHIFT 24
616 struct regpair lun;
617 __le32 itt;
618 __le32 snack_tag;
619 __le32 stat_sn;
620 __le32 exp_cmd_sn;
621 __le32 max_cmd_sn;
622 __le32 exp_data_sn;
623 __le32 bi_residual_count;
624 __le32 residual_count;
625};
626
627struct iscsi_reject_hdr {
628 u8 reserved4;
629 u8 hdr_reason;
630 u8 hdr_flags;
631 u8 opcode;
632 __le32 hdr_second_dword;
633#define ISCSI_REJECT_HDR_DATA_SEG_LEN_MASK 0xFFFFFF
634#define ISCSI_REJECT_HDR_DATA_SEG_LEN_SHIFT 0
635#define ISCSI_REJECT_HDR_TOTAL_AHS_LEN_MASK 0xFF
636#define ISCSI_REJECT_HDR_TOTAL_AHS_LEN_SHIFT 24
637 struct regpair reserved0;
638 __le32 all_ones;
639 __le32 reserved2;
640 __le32 stat_sn;
641 __le32 exp_cmd_sn;
642 __le32 max_cmd_sn;
643 __le32 data_sn;
644 __le32 reserved3[2];
645};
646
647union iscsi_task_hdr {
648 struct iscsi_common_hdr common;
649 struct data_hdr data;
650 struct iscsi_cmd_hdr cmd;
651 struct iscsi_ext_cdb_cmd_hdr ext_cdb_cmd;
652 struct iscsi_login_req_hdr login_req;
653 struct iscsi_logout_req_hdr logout_req;
654 struct iscsi_data_out_hdr data_out;
655 struct iscsi_data_in_hdr data_in;
656 struct iscsi_r2t_hdr r2t;
657 struct iscsi_nop_out_hdr nop_out;
658 struct iscsi_nop_in_hdr nop_in;
659 struct iscsi_login_response_hdr login_response;
660 struct iscsi_logout_response_hdr logout_response;
661 struct iscsi_text_request_hdr text_request;
662 struct iscsi_text_response_hdr text_response;
663 struct iscsi_tmf_request_hdr tmf_request;
664 struct iscsi_tmf_response_hdr tmf_response;
665 struct iscsi_response_hdr response;
666 struct iscsi_reject_hdr reject;
667 struct iscsi_async_msg_hdr async_msg;
668};
669
670struct iscsi_cqe_common {
671 __le16 conn_id;
672 u8 cqe_type;
673 union cqe_error_status error_bitmap;
674 __le32 reserved[3];
675 union iscsi_task_hdr iscsi_hdr;
676};
677
678struct iscsi_cqe_solicited {
679 __le16 conn_id;
680 u8 cqe_type;
681 union cqe_error_status error_bitmap;
682 __le16 itid;
683 u8 task_type;
684 u8 fw_dbg_field;
685 u8 caused_conn_err;
686 u8 reserved0[3];
687 __le32 reserved1[1];
688 union iscsi_task_hdr iscsi_hdr;
689};
690
691struct iscsi_cqe_unsolicited {
692 __le16 conn_id;
693 u8 cqe_type;
694 union cqe_error_status error_bitmap;
695 __le16 reserved0;
696 u8 reserved1;
697 u8 unsol_cqe_type;
698 struct regpair rqe_opaque;
699 union iscsi_task_hdr iscsi_hdr;
700};
701
702union iscsi_cqe {
703 struct iscsi_cqe_common cqe_common;
704 struct iscsi_cqe_solicited cqe_solicited;
705 struct iscsi_cqe_unsolicited cqe_unsolicited;
706};
707
708enum iscsi_cqes_type {
709 ISCSI_CQE_TYPE_SOLICITED = 1,
710 ISCSI_CQE_TYPE_UNSOLICITED,
711 ISCSI_CQE_TYPE_SOLICITED_WITH_SENSE,
712 ISCSI_CQE_TYPE_TASK_CLEANUP,
713 ISCSI_CQE_TYPE_DUMMY,
714 MAX_ISCSI_CQES_TYPE
715};
716
717enum iscsi_cqe_unsolicited_type {
718 ISCSI_CQE_UNSOLICITED_NONE,
719 ISCSI_CQE_UNSOLICITED_SINGLE,
720 ISCSI_CQE_UNSOLICITED_FIRST,
721 ISCSI_CQE_UNSOLICITED_MIDDLE,
722 ISCSI_CQE_UNSOLICITED_LAST,
723 MAX_ISCSI_CQE_UNSOLICITED_TYPE
724};
725
726
727struct iscsi_debug_modes {
728 u8 flags;
729#define ISCSI_DEBUG_MODES_ASSERT_IF_RX_CONN_ERROR_MASK 0x1
730#define ISCSI_DEBUG_MODES_ASSERT_IF_RX_CONN_ERROR_SHIFT 0
731#define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_RESET_MASK 0x1
732#define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_RESET_SHIFT 1
733#define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_FIN_MASK 0x1
734#define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_FIN_SHIFT 2
735#define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_CLEANUP_MASK 0x1
736#define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_CLEANUP_SHIFT 3
737#define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_REJECT_OR_ASYNC_MASK 0x1
738#define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_REJECT_OR_ASYNC_SHIFT 4
739#define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_NOP_MASK 0x1
740#define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_NOP_SHIFT 5
741#define ISCSI_DEBUG_MODES_ASSERT_IF_DATA_DIGEST_ERROR_MASK 0x1
742#define ISCSI_DEBUG_MODES_ASSERT_IF_DATA_DIGEST_ERROR_SHIFT 6
743#define ISCSI_DEBUG_MODES_ASSERT_IF_DIF_ERROR_MASK 0x1
744#define ISCSI_DEBUG_MODES_ASSERT_IF_DIF_ERROR_SHIFT 7
745};
746
747struct iscsi_dif_flags {
748 u8 flags;
749#define ISCSI_DIF_FLAGS_PROT_INTERVAL_SIZE_LOG_MASK 0xF
750#define ISCSI_DIF_FLAGS_PROT_INTERVAL_SIZE_LOG_SHIFT 0
751#define ISCSI_DIF_FLAGS_DIF_TO_PEER_MASK 0x1
752#define ISCSI_DIF_FLAGS_DIF_TO_PEER_SHIFT 4
753#define ISCSI_DIF_FLAGS_HOST_INTERFACE_MASK 0x7
754#define ISCSI_DIF_FLAGS_HOST_INTERFACE_SHIFT 5
755};
756
757enum iscsi_eqe_opcode {
758 ISCSI_EVENT_TYPE_INIT_FUNC = 0,
759 ISCSI_EVENT_TYPE_DESTROY_FUNC,
760 ISCSI_EVENT_TYPE_OFFLOAD_CONN,
761 ISCSI_EVENT_TYPE_UPDATE_CONN,
762 ISCSI_EVENT_TYPE_CLEAR_SQ,
763 ISCSI_EVENT_TYPE_TERMINATE_CONN,
764 ISCSI_EVENT_TYPE_MAC_UPDATE_CONN,
765 ISCSI_EVENT_TYPE_ASYN_CONNECT_COMPLETE,
766 ISCSI_EVENT_TYPE_ASYN_TERMINATE_DONE,
767 RESERVED9,
768 ISCSI_EVENT_TYPE_START_OF_ERROR_TYPES = 10,
769 ISCSI_EVENT_TYPE_ASYN_ABORT_RCVD,
770 ISCSI_EVENT_TYPE_ASYN_CLOSE_RCVD,
771 ISCSI_EVENT_TYPE_ASYN_SYN_RCVD,
772 ISCSI_EVENT_TYPE_ASYN_MAX_RT_TIME,
773 ISCSI_EVENT_TYPE_ASYN_MAX_RT_CNT,
774 ISCSI_EVENT_TYPE_ASYN_MAX_KA_PROBES_CNT,
775 ISCSI_EVENT_TYPE_ASYN_FIN_WAIT2,
776 ISCSI_EVENT_TYPE_ISCSI_CONN_ERROR,
777 ISCSI_EVENT_TYPE_TCP_CONN_ERROR,
778 MAX_ISCSI_EQE_OPCODE
779};
780
781enum iscsi_error_types {
782 ISCSI_STATUS_NONE = 0,
783 ISCSI_CQE_ERROR_UNSOLICITED_RCV_ON_INVALID_CONN = 1,
784 ISCSI_CONN_ERROR_TASK_CID_MISMATCH,
785 ISCSI_CONN_ERROR_TASK_NOT_VALID,
786 ISCSI_CONN_ERROR_RQ_RING_IS_FULL,
787 ISCSI_CONN_ERROR_CMDQ_RING_IS_FULL,
788 ISCSI_CONN_ERROR_HQE_CACHING_FAILED,
789 ISCSI_CONN_ERROR_HEADER_DIGEST_ERROR,
790 ISCSI_CONN_ERROR_LOCAL_COMPLETION_ERROR,
791 ISCSI_CONN_ERROR_DATA_OVERRUN,
792 ISCSI_CONN_ERROR_OUT_OF_SGES_ERROR,
793 ISCSI_CONN_ERROR_TCP_SEG_PROC_URG_ERROR,
794 ISCSI_CONN_ERROR_TCP_SEG_PROC_IP_OPTIONS_ERROR,
795 ISCSI_CONN_ERROR_TCP_SEG_PROC_CONNECT_INVALID_WS_OPTION,
796 ISCSI_CONN_ERROR_TCP_IP_FRAGMENT_ERROR,
797 ISCSI_CONN_ERROR_PROTOCOL_ERR_AHS_LEN,
798 ISCSI_CONN_ERROR_PROTOCOL_ERR_AHS_TYPE,
799 ISCSI_CONN_ERROR_PROTOCOL_ERR_ITT_OUT_OF_RANGE,
800 ISCSI_CONN_ERROR_PROTOCOL_ERR_TTT_OUT_OF_RANGE,
801 ISCSI_CONN_ERROR_PROTOCOL_ERR_DATA_SEG_LEN_EXCEEDS_PDU_SIZE,
802 ISCSI_CONN_ERROR_PROTOCOL_ERR_INVALID_OPCODE,
803 ISCSI_CONN_ERROR_PROTOCOL_ERR_INVALID_OPCODE_BEFORE_UPDATE,
804 ISCSI_CONN_ERROR_UNVALID_NOPIN_DSL,
805 ISCSI_CONN_ERROR_PROTOCOL_ERR_R2T_CARRIES_NO_DATA,
806 ISCSI_CONN_ERROR_PROTOCOL_ERR_DATA_SN,
807 ISCSI_CONN_ERROR_PROTOCOL_ERR_DATA_IN_TTT,
808 ISCSI_CONN_ERROR_PROTOCOL_ERR_DATA_OUT_ITT,
809 ISCSI_CONN_ERROR_PROTOCOL_ERR_R2T_TTT,
810 ISCSI_CONN_ERROR_PROTOCOL_ERR_R2T_BUFFER_OFFSET,
811 ISCSI_CONN_ERROR_PROTOCOL_ERR_BUFFER_OFFSET_OOO,
812 ISCSI_CONN_ERROR_PROTOCOL_ERR_R2T_SN,
813 ISCSI_CONN_ERROR_PROTOCOL_ERR_DESIRED_DATA_TRNS_LEN_0,
814 ISCSI_CONN_ERROR_PROTOCOL_ERR_DESIRED_DATA_TRNS_LEN_1,
815 ISCSI_CONN_ERROR_PROTOCOL_ERR_DESIRED_DATA_TRNS_LEN_2,
816 ISCSI_CONN_ERROR_PROTOCOL_ERR_LUN,
817 ISCSI_CONN_ERROR_PROTOCOL_ERR_F_BIT_ZERO,
818 ISCSI_CONN_ERROR_PROTOCOL_ERR_F_BIT_ZERO_S_BIT_ONE,
819 ISCSI_CONN_ERROR_PROTOCOL_ERR_EXP_STAT_SN,
820 ISCSI_CONN_ERROR_PROTOCOL_ERR_DSL_NOT_ZERO,
821 ISCSI_CONN_ERROR_PROTOCOL_ERR_INVALID_DSL,
822 ISCSI_CONN_ERROR_PROTOCOL_ERR_DATA_SEG_LEN_TOO_BIG,
823 ISCSI_CONN_ERROR_PROTOCOL_ERR_OUTSTANDING_R2T_COUNT,
824 ISCSI_CONN_ERROR_PROTOCOL_ERR_DIF_TX,
825 ISCSI_CONN_ERROR_SENSE_DATA_LENGTH,
826 ISCSI_CONN_ERROR_DATA_PLACEMENT_ERROR,
827 ISCSI_CONN_ERROR_INVALID_ITT,
828 ISCSI_ERROR_UNKNOWN,
829 MAX_ISCSI_ERROR_TYPES
830};
831
832
833enum iscsi_ramrod_cmd_id {
834 ISCSI_RAMROD_CMD_ID_UNUSED = 0,
835 ISCSI_RAMROD_CMD_ID_INIT_FUNC = 1,
836 ISCSI_RAMROD_CMD_ID_DESTROY_FUNC = 2,
837 ISCSI_RAMROD_CMD_ID_OFFLOAD_CONN = 3,
838 ISCSI_RAMROD_CMD_ID_UPDATE_CONN = 4,
839 ISCSI_RAMROD_CMD_ID_TERMINATION_CONN = 5,
840 ISCSI_RAMROD_CMD_ID_CLEAR_SQ = 6,
841 ISCSI_RAMROD_CMD_ID_MAC_UPDATE = 7,
842 MAX_ISCSI_RAMROD_CMD_ID
843};
844
845struct iscsi_reg1 {
846 __le32 reg1_map;
847#define ISCSI_REG1_NUM_SGES_MASK 0xF
848#define ISCSI_REG1_NUM_SGES_SHIFT 0
849#define ISCSI_REG1_RESERVED1_MASK 0xFFFFFFF
850#define ISCSI_REG1_RESERVED1_SHIFT 4
851};
852
853union iscsi_seq_num {
854 __le16 data_sn;
855 __le16 r2t_sn;
856};
857
858struct iscsi_spe_conn_mac_update {
859 struct iscsi_slow_path_hdr hdr;
860 __le16 conn_id;
861 __le32 fw_cid;
862 __le16 remote_mac_addr_lo;
863 __le16 remote_mac_addr_mid;
864 __le16 remote_mac_addr_hi;
865 u8 reserved0[2];
866};
867
868struct iscsi_spe_conn_offload {
869 struct iscsi_slow_path_hdr hdr;
870 __le16 conn_id;
871 __le32 fw_cid;
872 struct iscsi_conn_offload_params iscsi;
873 struct tcp_offload_params tcp;
874};
875
876struct iscsi_spe_conn_offload_option2 {
877 struct iscsi_slow_path_hdr hdr;
878 __le16 conn_id;
879 __le32 fw_cid;
880 struct iscsi_conn_offload_params iscsi;
881 struct tcp_offload_params_opt2 tcp;
882};
883
884struct iscsi_spe_conn_termination {
885 struct iscsi_slow_path_hdr hdr;
886 __le16 conn_id;
887 __le32 fw_cid;
888 u8 abortive;
889 u8 reserved0[7];
890 struct regpair queue_cnts_addr;
891 struct regpair query_params_addr;
892};
893
894struct iscsi_spe_func_dstry {
895 struct iscsi_slow_path_hdr hdr;
896 __le16 reserved0;
897 __le32 reserved1;
898};
899
900struct iscsi_spe_func_init {
901 struct iscsi_slow_path_hdr hdr;
902 __le16 half_way_close_timeout;
903 u8 num_sq_pages_in_ring;
904 u8 num_r2tq_pages_in_ring;
905 u8 num_uhq_pages_in_ring;
906 u8 ll2_rx_queue_id;
907 u8 ooo_enable;
908 struct iscsi_debug_modes debug_mode;
909 __le16 reserved1;
910 __le32 reserved2;
911 __le32 reserved3;
912 __le32 reserved4;
913 struct scsi_init_func_params func_params;
914 struct scsi_init_func_queues q_params;
915};
916
917struct ystorm_iscsi_task_state {
918 struct scsi_cached_sges data_desc;
919 struct scsi_sgl_params sgl_params;
920 __le32 exp_r2t_sn;
921 __le32 buffer_offset;
922 union iscsi_seq_num seq_num;
923 struct iscsi_dif_flags dif_flags;
924 u8 flags;
925#define YSTORM_ISCSI_TASK_STATE_LOCAL_COMP_MASK 0x1
926#define YSTORM_ISCSI_TASK_STATE_LOCAL_COMP_SHIFT 0
927#define YSTORM_ISCSI_TASK_STATE_SLOW_IO_MASK 0x1
928#define YSTORM_ISCSI_TASK_STATE_SLOW_IO_SHIFT 1
929#define YSTORM_ISCSI_TASK_STATE_RESERVED0_MASK 0x3F
930#define YSTORM_ISCSI_TASK_STATE_RESERVED0_SHIFT 2
931};
932
933struct ystorm_iscsi_task_rxmit_opt {
934 __le32 fast_rxmit_sge_offset;
935 __le32 scan_start_buffer_offset;
936 __le32 fast_rxmit_buffer_offset;
937 u8 scan_start_sgl_index;
938 u8 fast_rxmit_sgl_index;
939 __le16 reserved;
940};
941
942struct ystorm_iscsi_task_st_ctx {
943 struct ystorm_iscsi_task_state state;
944 struct ystorm_iscsi_task_rxmit_opt rxmit_opt;
945 union iscsi_task_hdr pdu_hdr;
946};
947
948struct ystorm_iscsi_task_ag_ctx {
949 u8 reserved;
950 u8 byte1;
951 __le16 word0;
952 u8 flags0;
953#define YSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_MASK 0xF
954#define YSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_SHIFT 0
955#define YSTORM_ISCSI_TASK_AG_CTX_BIT0_MASK 0x1
956#define YSTORM_ISCSI_TASK_AG_CTX_BIT0_SHIFT 4
957#define YSTORM_ISCSI_TASK_AG_CTX_BIT1_MASK 0x1
958#define YSTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT 5
959#define YSTORM_ISCSI_TASK_AG_CTX_VALID_MASK 0x1
960#define YSTORM_ISCSI_TASK_AG_CTX_VALID_SHIFT 6
961#define YSTORM_ISCSI_TASK_AG_CTX_BIT3_MASK 0x1
962#define YSTORM_ISCSI_TASK_AG_CTX_BIT3_SHIFT 7
963 u8 flags1;
964#define YSTORM_ISCSI_TASK_AG_CTX_CF0_MASK 0x3
965#define YSTORM_ISCSI_TASK_AG_CTX_CF0_SHIFT 0
966#define YSTORM_ISCSI_TASK_AG_CTX_CF1_MASK 0x3
967#define YSTORM_ISCSI_TASK_AG_CTX_CF1_SHIFT 2
968#define YSTORM_ISCSI_TASK_AG_CTX_CF2SPECIAL_MASK 0x3
969#define YSTORM_ISCSI_TASK_AG_CTX_CF2SPECIAL_SHIFT 4
970#define YSTORM_ISCSI_TASK_AG_CTX_CF0EN_MASK 0x1
971#define YSTORM_ISCSI_TASK_AG_CTX_CF0EN_SHIFT 6
972#define YSTORM_ISCSI_TASK_AG_CTX_CF1EN_MASK 0x1
973#define YSTORM_ISCSI_TASK_AG_CTX_CF1EN_SHIFT 7
974 u8 flags2;
975#define YSTORM_ISCSI_TASK_AG_CTX_BIT4_MASK 0x1
976#define YSTORM_ISCSI_TASK_AG_CTX_BIT4_SHIFT 0
977#define YSTORM_ISCSI_TASK_AG_CTX_RULE0EN_MASK 0x1
978#define YSTORM_ISCSI_TASK_AG_CTX_RULE0EN_SHIFT 1
979#define YSTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1
980#define YSTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 2
981#define YSTORM_ISCSI_TASK_AG_CTX_RULE2EN_MASK 0x1
982#define YSTORM_ISCSI_TASK_AG_CTX_RULE2EN_SHIFT 3
983#define YSTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1
984#define YSTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 4
985#define YSTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1
986#define YSTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 5
987#define YSTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1
988#define YSTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 6
989#define YSTORM_ISCSI_TASK_AG_CTX_RULE6EN_MASK 0x1
990#define YSTORM_ISCSI_TASK_AG_CTX_RULE6EN_SHIFT 7
991 u8 byte2;
992 __le32 TTT;
993 u8 byte3;
994 u8 byte4;
995 __le16 word1;
996};
997
998struct mstorm_iscsi_task_ag_ctx {
999 u8 cdu_validation;
1000 u8 byte1;
1001 __le16 task_cid;
1002 u8 flags0;
1003#define MSTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_MASK 0xF
1004#define MSTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_SHIFT 0
1005#define MSTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_MASK 0x1
1006#define MSTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_SHIFT 4
1007#define MSTORM_ISCSI_TASK_AG_CTX_BIT1_MASK 0x1
1008#define MSTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT 5
1009#define MSTORM_ISCSI_TASK_AG_CTX_VALID_MASK 0x1
1010#define MSTORM_ISCSI_TASK_AG_CTX_VALID_SHIFT 6
1011#define MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_FLAG_MASK 0x1
1012#define MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_FLAG_SHIFT 7
1013 u8 flags1;
1014#define MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_MASK 0x3
1015#define MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_SHIFT 0
1016#define MSTORM_ISCSI_TASK_AG_CTX_CF1_MASK 0x3
1017#define MSTORM_ISCSI_TASK_AG_CTX_CF1_SHIFT 2
1018#define MSTORM_ISCSI_TASK_AG_CTX_CF2_MASK 0x3
1019#define MSTORM_ISCSI_TASK_AG_CTX_CF2_SHIFT 4
1020#define MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_EN_MASK 0x1
1021#define MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_EN_SHIFT 6
1022#define MSTORM_ISCSI_TASK_AG_CTX_CF1EN_MASK 0x1
1023#define MSTORM_ISCSI_TASK_AG_CTX_CF1EN_SHIFT 7
1024 u8 flags2;
1025#define MSTORM_ISCSI_TASK_AG_CTX_CF2EN_MASK 0x1
1026#define MSTORM_ISCSI_TASK_AG_CTX_CF2EN_SHIFT 0
1027#define MSTORM_ISCSI_TASK_AG_CTX_RULE0EN_MASK 0x1
1028#define MSTORM_ISCSI_TASK_AG_CTX_RULE0EN_SHIFT 1
1029#define MSTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1
1030#define MSTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 2
1031#define MSTORM_ISCSI_TASK_AG_CTX_RULE2EN_MASK 0x1
1032#define MSTORM_ISCSI_TASK_AG_CTX_RULE2EN_SHIFT 3
1033#define MSTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1
1034#define MSTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 4
1035#define MSTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1
1036#define MSTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 5
1037#define MSTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1
1038#define MSTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 6
1039#define MSTORM_ISCSI_TASK_AG_CTX_RULE6EN_MASK 0x1
1040#define MSTORM_ISCSI_TASK_AG_CTX_RULE6EN_SHIFT 7
1041 u8 byte2;
1042 __le32 reg0;
1043 u8 byte3;
1044 u8 byte4;
1045 __le16 word1;
1046};
1047
1048struct ustorm_iscsi_task_ag_ctx {
1049 u8 reserved;
1050 u8 state;
1051 __le16 icid;
1052 u8 flags0;
1053#define USTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_MASK 0xF
1054#define USTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_SHIFT 0
1055#define USTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_MASK 0x1
1056#define USTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_SHIFT 4
1057#define USTORM_ISCSI_TASK_AG_CTX_BIT1_MASK 0x1
1058#define USTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT 5
1059#define USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_MASK 0x3
1060#define USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_SHIFT 6
1061 u8 flags1;
1062#define USTORM_ISCSI_TASK_AG_CTX_RESERVED1_MASK 0x3
1063#define USTORM_ISCSI_TASK_AG_CTX_RESERVED1_SHIFT 0
1064#define USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_MASK 0x3
1065#define USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_SHIFT 2
1066#define USTORM_ISCSI_TASK_AG_CTX_CF3_MASK 0x3
1067#define USTORM_ISCSI_TASK_AG_CTX_CF3_SHIFT 4
1068#define USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_MASK 0x3
1069#define USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_SHIFT 6
1070 u8 flags2;
1071#define USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_EN_MASK 0x1
1072#define USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_EN_SHIFT 0
1073#define USTORM_ISCSI_TASK_AG_CTX_DISABLE_DATA_ACKED_MASK 0x1
1074#define USTORM_ISCSI_TASK_AG_CTX_DISABLE_DATA_ACKED_SHIFT 1
1075#define USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_EN_MASK 0x1
1076#define USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_EN_SHIFT 2
1077#define USTORM_ISCSI_TASK_AG_CTX_CF3EN_MASK 0x1
1078#define USTORM_ISCSI_TASK_AG_CTX_CF3EN_SHIFT 3
1079#define USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_EN_MASK 0x1
1080#define USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_EN_SHIFT 4
1081#define USTORM_ISCSI_TASK_AG_CTX_CMP_DATA_TOTAL_EXP_EN_MASK 0x1
1082#define USTORM_ISCSI_TASK_AG_CTX_CMP_DATA_TOTAL_EXP_EN_SHIFT 5
1083#define USTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1
1084#define USTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 6
1085#define USTORM_ISCSI_TASK_AG_CTX_CMP_CONT_RCV_EXP_EN_MASK 0x1
1086#define USTORM_ISCSI_TASK_AG_CTX_CMP_CONT_RCV_EXP_EN_SHIFT 7
1087 u8 flags3;
1088#define USTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1
1089#define USTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 0
1090#define USTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1
1091#define USTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 1
1092#define USTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1
1093#define USTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 2
1094#define USTORM_ISCSI_TASK_AG_CTX_RULE6EN_MASK 0x1
1095#define USTORM_ISCSI_TASK_AG_CTX_RULE6EN_SHIFT 3
1096#define USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_TYPE_MASK 0xF
1097#define USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_TYPE_SHIFT 4
1098 __le32 dif_err_intervals;
1099 __le32 dif_error_1st_interval;
1100 __le32 rcv_cont_len;
1101 __le32 exp_cont_len;
1102 __le32 total_data_acked;
1103 __le32 exp_data_acked;
1104 u8 next_tid_valid;
1105 u8 byte3;
1106 __le16 word1;
1107 __le16 next_tid;
1108 __le16 word3;
1109 __le32 hdr_residual_count;
1110 __le32 exp_r2t_sn;
1111};
1112
1113struct mstorm_iscsi_task_st_ctx {
1114 struct scsi_cached_sges data_desc;
1115 struct scsi_sgl_params sgl_params;
1116 __le32 rem_task_size;
1117 __le32 data_buffer_offset;
1118 u8 task_type;
1119 struct iscsi_dif_flags dif_flags;
1120 u8 reserved0[2];
1121 struct regpair sense_db;
1122 __le32 expected_itt;
1123 __le32 reserved1;
1124};
1125
1126struct ustorm_iscsi_task_st_ctx {
1127 __le32 rem_rcv_len;
1128 __le32 exp_data_transfer_len;
1129 __le32 exp_data_sn;
1130 struct regpair lun;
1131 struct iscsi_reg1 reg1;
1132 u8 flags2;
1133#define USTORM_ISCSI_TASK_ST_CTX_AHS_EXIST_MASK 0x1
1134#define USTORM_ISCSI_TASK_ST_CTX_AHS_EXIST_SHIFT 0
1135#define USTORM_ISCSI_TASK_ST_CTX_RESERVED1_MASK 0x7F
1136#define USTORM_ISCSI_TASK_ST_CTX_RESERVED1_SHIFT 1
1137 struct iscsi_dif_flags dif_flags;
1138 __le16 reserved3;
1139 __le32 reserved4;
1140 __le32 reserved5;
1141 __le32 reserved6;
1142 __le32 reserved7;
1143 u8 task_type;
1144 u8 error_flags;
1145#define USTORM_ISCSI_TASK_ST_CTX_DATA_DIGEST_ERROR_MASK 0x1
1146#define USTORM_ISCSI_TASK_ST_CTX_DATA_DIGEST_ERROR_SHIFT 0
1147#define USTORM_ISCSI_TASK_ST_CTX_DATA_TRUNCATED_ERROR_MASK 0x1
1148#define USTORM_ISCSI_TASK_ST_CTX_DATA_TRUNCATED_ERROR_SHIFT 1
1149#define USTORM_ISCSI_TASK_ST_CTX_UNDER_RUN_ERROR_MASK 0x1
1150#define USTORM_ISCSI_TASK_ST_CTX_UNDER_RUN_ERROR_SHIFT 2
1151#define USTORM_ISCSI_TASK_ST_CTX_RESERVED8_MASK 0x1F
1152#define USTORM_ISCSI_TASK_ST_CTX_RESERVED8_SHIFT 3
1153 u8 flags;
1154#define USTORM_ISCSI_TASK_ST_CTX_CQE_WRITE_MASK 0x3
1155#define USTORM_ISCSI_TASK_ST_CTX_CQE_WRITE_SHIFT 0
1156#define USTORM_ISCSI_TASK_ST_CTX_LOCAL_COMP_MASK 0x1
1157#define USTORM_ISCSI_TASK_ST_CTX_LOCAL_COMP_SHIFT 2
1158#define USTORM_ISCSI_TASK_ST_CTX_Q0_R2TQE_WRITE_MASK 0x1
1159#define USTORM_ISCSI_TASK_ST_CTX_Q0_R2TQE_WRITE_SHIFT 3
1160#define USTORM_ISCSI_TASK_ST_CTX_TOTAL_DATA_ACKED_DONE_MASK 0x1
1161#define USTORM_ISCSI_TASK_ST_CTX_TOTAL_DATA_ACKED_DONE_SHIFT 4
1162#define USTORM_ISCSI_TASK_ST_CTX_HQ_SCANNED_DONE_MASK 0x1
1163#define USTORM_ISCSI_TASK_ST_CTX_HQ_SCANNED_DONE_SHIFT 5
1164#define USTORM_ISCSI_TASK_ST_CTX_R2T2RECV_DONE_MASK 0x1
1165#define USTORM_ISCSI_TASK_ST_CTX_R2T2RECV_DONE_SHIFT 6
1166#define USTORM_ISCSI_TASK_ST_CTX_RESERVED0_MASK 0x1
1167#define USTORM_ISCSI_TASK_ST_CTX_RESERVED0_SHIFT 7
1168 u8 cq_rss_number;
1169};
1170
1171struct iscsi_task_context {
1172 struct ystorm_iscsi_task_st_ctx ystorm_st_context;
1173 struct ystorm_iscsi_task_ag_ctx ystorm_ag_context;
1174 struct regpair ystorm_ag_padding[2];
1175 struct tdif_task_context tdif_context;
1176 struct mstorm_iscsi_task_ag_ctx mstorm_ag_context;
1177 struct regpair mstorm_ag_padding[2];
1178 struct ustorm_iscsi_task_ag_ctx ustorm_ag_context;
1179 struct mstorm_iscsi_task_st_ctx mstorm_st_context;
1180 struct ustorm_iscsi_task_st_ctx ustorm_st_context;
1181 struct rdif_task_context rdif_context;
1182};
1183
1184enum iscsi_task_type {
1185 ISCSI_TASK_TYPE_INITIATOR_WRITE,
1186 ISCSI_TASK_TYPE_INITIATOR_READ,
1187 ISCSI_TASK_TYPE_MIDPATH,
1188 ISCSI_TASK_TYPE_UNSOLIC,
1189 ISCSI_TASK_TYPE_EXCHCLEANUP,
1190 ISCSI_TASK_TYPE_IRRELEVANT,
1191 ISCSI_TASK_TYPE_TARGET_WRITE,
1192 ISCSI_TASK_TYPE_TARGET_READ,
1193 ISCSI_TASK_TYPE_TARGET_RESPONSE,
1194 ISCSI_TASK_TYPE_LOGIN_RESPONSE,
1195 MAX_ISCSI_TASK_TYPE
1196};
1197
1198union iscsi_ttt_txlen_union {
1199 __le32 desired_tx_len;
1200 __le32 ttt;
1201};
1202
1203struct iscsi_uhqe {
1204 __le32 reg1;
1205#define ISCSI_UHQE_PDU_PAYLOAD_LEN_MASK 0xFFFFF
1206#define ISCSI_UHQE_PDU_PAYLOAD_LEN_SHIFT 0
1207#define ISCSI_UHQE_LOCAL_COMP_MASK 0x1
1208#define ISCSI_UHQE_LOCAL_COMP_SHIFT 20
1209#define ISCSI_UHQE_TOGGLE_BIT_MASK 0x1
1210#define ISCSI_UHQE_TOGGLE_BIT_SHIFT 21
1211#define ISCSI_UHQE_PURE_PAYLOAD_MASK 0x1
1212#define ISCSI_UHQE_PURE_PAYLOAD_SHIFT 22
1213#define ISCSI_UHQE_LOGIN_RESPONSE_PDU_MASK 0x1
1214#define ISCSI_UHQE_LOGIN_RESPONSE_PDU_SHIFT 23
1215#define ISCSI_UHQE_TASK_ID_HI_MASK 0xFF
1216#define ISCSI_UHQE_TASK_ID_HI_SHIFT 24
1217 __le32 reg2;
1218#define ISCSI_UHQE_BUFFER_OFFSET_MASK 0xFFFFFF
1219#define ISCSI_UHQE_BUFFER_OFFSET_SHIFT 0
1220#define ISCSI_UHQE_TASK_ID_LO_MASK 0xFF
1221#define ISCSI_UHQE_TASK_ID_LO_SHIFT 24
1222};
1223
1224
1225struct iscsi_wqe {
1226 __le16 task_id;
1227 u8 flags;
1228#define ISCSI_WQE_WQE_TYPE_MASK 0x7
1229#define ISCSI_WQE_WQE_TYPE_SHIFT 0
1230#define ISCSI_WQE_NUM_SGES_MASK 0xF
1231#define ISCSI_WQE_NUM_SGES_SHIFT 3
1232#define ISCSI_WQE_RESPONSE_MASK 0x1
1233#define ISCSI_WQE_RESPONSE_SHIFT 7
1234 struct iscsi_dif_flags prot_flags;
1235 __le32 contlen_cdbsize;
1236#define ISCSI_WQE_CONT_LEN_MASK 0xFFFFFF
1237#define ISCSI_WQE_CONT_LEN_SHIFT 0
1238#define ISCSI_WQE_CDB_SIZE_MASK 0xFF
1239#define ISCSI_WQE_CDB_SIZE_SHIFT 24
1240};
1241
1242enum iscsi_wqe_type {
1243 ISCSI_WQE_TYPE_NORMAL,
1244 ISCSI_WQE_TYPE_TASK_CLEANUP,
1245 ISCSI_WQE_TYPE_MIDDLE_PATH,
1246 ISCSI_WQE_TYPE_LOGIN,
1247 ISCSI_WQE_TYPE_FIRST_R2T_CONT,
1248 ISCSI_WQE_TYPE_NONFIRST_R2T_CONT,
1249 ISCSI_WQE_TYPE_RESPONSE,
1250 MAX_ISCSI_WQE_TYPE
1251};
1252
1253struct iscsi_xhqe {
1254 union iscsi_ttt_txlen_union ttt_or_txlen;
1255 __le32 exp_stat_sn;
1256 struct iscsi_dif_flags prot_flags;
1257 u8 total_ahs_length;
1258 u8 opcode;
1259 u8 flags;
1260#define ISCSI_XHQE_FINAL_MASK 0x1
1261#define ISCSI_XHQE_FINAL_SHIFT 0
1262#define ISCSI_XHQE_STATUS_BIT_MASK 0x1
1263#define ISCSI_XHQE_STATUS_BIT_SHIFT 1
1264#define ISCSI_XHQE_NUM_SGES_MASK 0xF
1265#define ISCSI_XHQE_NUM_SGES_SHIFT 2
1266#define ISCSI_XHQE_RESERVED0_MASK 0x3
1267#define ISCSI_XHQE_RESERVED0_SHIFT 6
1268 union iscsi_seq_num seq_num;
1269 __le16 reserved1;
1270};
1271
1272struct mstorm_iscsi_stats_drv {
1273 struct regpair iscsi_rx_dropped_pdus_task_not_valid;
1274};
1275
1276struct pstorm_iscsi_stats_drv {
1277 struct regpair iscsi_tx_bytes_cnt;
1278 struct regpair iscsi_tx_packet_cnt;
1279};
1280
1281struct tstorm_iscsi_stats_drv {
1282 struct regpair iscsi_rx_bytes_cnt;
1283 struct regpair iscsi_rx_packet_cnt;
1284 struct regpair iscsi_rx_new_ooo_isle_events_cnt;
1285 __le32 iscsi_cmdq_threshold_cnt;
1286 __le32 iscsi_rq_threshold_cnt;
1287 __le32 iscsi_immq_threshold_cnt;
1288};
1289
1290struct ustorm_iscsi_stats_drv {
1291 struct regpair iscsi_rx_data_pdu_cnt;
1292 struct regpair iscsi_rx_r2t_pdu_cnt;
1293 struct regpair iscsi_rx_total_pdu_cnt;
1294};
1295
1296struct xstorm_iscsi_stats_drv {
1297 struct regpair iscsi_tx_go_to_slow_start_event_cnt;
1298 struct regpair iscsi_tx_fast_retransmit_event_cnt;
1299};
1300
1301struct ystorm_iscsi_stats_drv {
1302 struct regpair iscsi_tx_data_pdu_cnt;
1303 struct regpair iscsi_tx_r2t_pdu_cnt;
1304 struct regpair iscsi_tx_total_pdu_cnt;
1305};
1306
1307struct iscsi_db_data {
1308 u8 params;
1309#define ISCSI_DB_DATA_DEST_MASK 0x3
1310#define ISCSI_DB_DATA_DEST_SHIFT 0
1311#define ISCSI_DB_DATA_AGG_CMD_MASK 0x3
1312#define ISCSI_DB_DATA_AGG_CMD_SHIFT 2
1313#define ISCSI_DB_DATA_BYPASS_EN_MASK 0x1
1314#define ISCSI_DB_DATA_BYPASS_EN_SHIFT 4
1315#define ISCSI_DB_DATA_RESERVED_MASK 0x1
1316#define ISCSI_DB_DATA_RESERVED_SHIFT 5
1317#define ISCSI_DB_DATA_AGG_VAL_SEL_MASK 0x3
1318#define ISCSI_DB_DATA_AGG_VAL_SEL_SHIFT 6
1319 u8 agg_flags;
1320 __le16 sq_prod;
1321};
1322
1323struct tstorm_iscsi_task_ag_ctx {
1324 u8 byte0;
1325 u8 byte1;
1326 __le16 word0;
1327 u8 flags0;
1328#define TSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_MASK 0xF
1329#define TSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_SHIFT 0
1330#define TSTORM_ISCSI_TASK_AG_CTX_BIT0_MASK 0x1
1331#define TSTORM_ISCSI_TASK_AG_CTX_BIT0_SHIFT 4
1332#define TSTORM_ISCSI_TASK_AG_CTX_BIT1_MASK 0x1
1333#define TSTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT 5
1334#define TSTORM_ISCSI_TASK_AG_CTX_BIT2_MASK 0x1
1335#define TSTORM_ISCSI_TASK_AG_CTX_BIT2_SHIFT 6
1336#define TSTORM_ISCSI_TASK_AG_CTX_BIT3_MASK 0x1
1337#define TSTORM_ISCSI_TASK_AG_CTX_BIT3_SHIFT 7
1338 u8 flags1;
1339#define TSTORM_ISCSI_TASK_AG_CTX_BIT4_MASK 0x1
1340#define TSTORM_ISCSI_TASK_AG_CTX_BIT4_SHIFT 0
1341#define TSTORM_ISCSI_TASK_AG_CTX_BIT5_MASK 0x1
1342#define TSTORM_ISCSI_TASK_AG_CTX_BIT5_SHIFT 1
1343#define TSTORM_ISCSI_TASK_AG_CTX_CF0_MASK 0x3
1344#define TSTORM_ISCSI_TASK_AG_CTX_CF0_SHIFT 2
1345#define TSTORM_ISCSI_TASK_AG_CTX_CF1_MASK 0x3
1346#define TSTORM_ISCSI_TASK_AG_CTX_CF1_SHIFT 4
1347#define TSTORM_ISCSI_TASK_AG_CTX_CF2_MASK 0x3
1348#define TSTORM_ISCSI_TASK_AG_CTX_CF2_SHIFT 6
1349 u8 flags2;
1350#define TSTORM_ISCSI_TASK_AG_CTX_CF3_MASK 0x3
1351#define TSTORM_ISCSI_TASK_AG_CTX_CF3_SHIFT 0
1352#define TSTORM_ISCSI_TASK_AG_CTX_CF4_MASK 0x3
1353#define TSTORM_ISCSI_TASK_AG_CTX_CF4_SHIFT 2
1354#define TSTORM_ISCSI_TASK_AG_CTX_CF5_MASK 0x3
1355#define TSTORM_ISCSI_TASK_AG_CTX_CF5_SHIFT 4
1356#define TSTORM_ISCSI_TASK_AG_CTX_CF6_MASK 0x3
1357#define TSTORM_ISCSI_TASK_AG_CTX_CF6_SHIFT 6
1358 u8 flags3;
1359#define TSTORM_ISCSI_TASK_AG_CTX_CF7_MASK 0x3
1360#define TSTORM_ISCSI_TASK_AG_CTX_CF7_SHIFT 0
1361#define TSTORM_ISCSI_TASK_AG_CTX_CF0EN_MASK 0x1
1362#define TSTORM_ISCSI_TASK_AG_CTX_CF0EN_SHIFT 2
1363#define TSTORM_ISCSI_TASK_AG_CTX_CF1EN_MASK 0x1
1364#define TSTORM_ISCSI_TASK_AG_CTX_CF1EN_SHIFT 3
1365#define TSTORM_ISCSI_TASK_AG_CTX_CF2EN_MASK 0x1
1366#define TSTORM_ISCSI_TASK_AG_CTX_CF2EN_SHIFT 4
1367#define TSTORM_ISCSI_TASK_AG_CTX_CF3EN_MASK 0x1
1368#define TSTORM_ISCSI_TASK_AG_CTX_CF3EN_SHIFT 5
1369#define TSTORM_ISCSI_TASK_AG_CTX_CF4EN_MASK 0x1
1370#define TSTORM_ISCSI_TASK_AG_CTX_CF4EN_SHIFT 6
1371#define TSTORM_ISCSI_TASK_AG_CTX_CF5EN_MASK 0x1
1372#define TSTORM_ISCSI_TASK_AG_CTX_CF5EN_SHIFT 7
1373 u8 flags4;
1374#define TSTORM_ISCSI_TASK_AG_CTX_CF6EN_MASK 0x1
1375#define TSTORM_ISCSI_TASK_AG_CTX_CF6EN_SHIFT 0
1376#define TSTORM_ISCSI_TASK_AG_CTX_CF7EN_MASK 0x1
1377#define TSTORM_ISCSI_TASK_AG_CTX_CF7EN_SHIFT 1
1378#define TSTORM_ISCSI_TASK_AG_CTX_RULE0EN_MASK 0x1
1379#define TSTORM_ISCSI_TASK_AG_CTX_RULE0EN_SHIFT 2
1380#define TSTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1
1381#define TSTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 3
1382#define TSTORM_ISCSI_TASK_AG_CTX_RULE2EN_MASK 0x1
1383#define TSTORM_ISCSI_TASK_AG_CTX_RULE2EN_SHIFT 4
1384#define TSTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1
1385#define TSTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 5
1386#define TSTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1
1387#define TSTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 6
1388#define TSTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1
1389#define TSTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 7
1390 u8 byte2;
1391 __le16 word1;
1392 __le32 reg0;
1393 u8 byte3;
1394 u8 byte4;
1395 __le16 word2;
1396 __le16 word3;
1397 __le16 word4;
1398 __le32 reg1;
1399 __le32 reg2;
1400};
1401
1402#endif /* __ISCSI_COMMON__ */