2 * Copyright (c) 2017-2018 Cavium, Inc.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
25 * POSSIBILITY OF SUCH DAMAGE.
31 #ifndef __ISCSI_COMMON__
32 #define __ISCSI_COMMON__
33 /**********************/
34 /* ISCSI FW CONSTANTS */
35 /**********************/
37 /* iSCSI HSI constants */
38 #define ISCSI_DEFAULT_MTU (1500)
40 /* KWQ (kernel work queue) layer codes */
41 #define ISCSI_SLOW_PATH_LAYER_CODE (6)
43 /* iSCSI parameter defaults */
44 #define ISCSI_DEFAULT_HEADER_DIGEST (0)
45 #define ISCSI_DEFAULT_DATA_DIGEST (0)
46 #define ISCSI_DEFAULT_INITIAL_R2T (1)
47 #define ISCSI_DEFAULT_IMMEDIATE_DATA (1)
48 #define ISCSI_DEFAULT_MAX_PDU_LENGTH (0x2000)
49 #define ISCSI_DEFAULT_FIRST_BURST_LENGTH (0x10000)
50 #define ISCSI_DEFAULT_MAX_BURST_LENGTH (0x40000)
51 #define ISCSI_DEFAULT_MAX_OUTSTANDING_R2T (1)
53 /* iSCSI parameter limits */
54 #define ISCSI_MIN_VAL_MAX_PDU_LENGTH (0x200)
55 #define ISCSI_MAX_VAL_MAX_PDU_LENGTH (0xffffff)
56 #define ISCSI_MIN_VAL_BURST_LENGTH (0x200)
57 #define ISCSI_MAX_VAL_BURST_LENGTH (0xffffff)
58 #define ISCSI_MIN_VAL_MAX_OUTSTANDING_R2T (1)
59 #define ISCSI_MAX_VAL_MAX_OUTSTANDING_R2T (0xff) // 0x10000 according to RFC
61 #define ISCSI_AHS_CNTL_SIZE 4
63 #define ISCSI_WQE_NUM_SGES_SLOWIO (0xf)
65 /* iSCSI reserved params */
66 #define ISCSI_ITT_ALL_ONES (0xffffffff)
67 #define ISCSI_TTT_ALL_ONES (0xffffffff)
69 #define ISCSI_OPTION_1_OFF_CHIP_TCP 1
70 #define ISCSI_OPTION_2_ON_CHIP_TCP 2
72 #define ISCSI_INITIATOR_MODE 0
73 #define ISCSI_TARGET_MODE 1
75 /* iSCSI request op codes */
76 #define ISCSI_OPCODE_NOP_OUT (0)
77 #define ISCSI_OPCODE_SCSI_CMD (1)
78 #define ISCSI_OPCODE_TMF_REQUEST (2)
79 #define ISCSI_OPCODE_LOGIN_REQUEST (3)
80 #define ISCSI_OPCODE_TEXT_REQUEST (4)
81 #define ISCSI_OPCODE_DATA_OUT (5)
82 #define ISCSI_OPCODE_LOGOUT_REQUEST (6)
84 /* iSCSI response/messages op codes */
85 #define ISCSI_OPCODE_NOP_IN (0x20)
86 #define ISCSI_OPCODE_SCSI_RESPONSE (0x21)
87 #define ISCSI_OPCODE_TMF_RESPONSE (0x22)
88 #define ISCSI_OPCODE_LOGIN_RESPONSE (0x23)
89 #define ISCSI_OPCODE_TEXT_RESPONSE (0x24)
90 #define ISCSI_OPCODE_DATA_IN (0x25)
91 #define ISCSI_OPCODE_LOGOUT_RESPONSE (0x26)
92 #define ISCSI_OPCODE_R2T (0x31)
93 #define ISCSI_OPCODE_ASYNC_MSG (0x32)
94 #define ISCSI_OPCODE_REJECT (0x3f)
97 #define ISCSI_STAGE_SECURITY_NEGOTIATION (0)
98 #define ISCSI_STAGE_LOGIN_OPERATIONAL_NEGOTIATION (1)
99 #define ISCSI_STAGE_FULL_FEATURE_PHASE (3)
101 /* iSCSI CQE errors */
102 #define CQE_ERROR_BITMAP_DATA_DIGEST (0x08)
103 #define CQE_ERROR_BITMAP_RCV_ON_INVALID_CONN (0x10)
104 #define CQE_ERROR_BITMAP_DATA_TRUNCATED (0x20)
107 * Union of data bd_opaque/ tq_tid
109 union bd_opaque_tq_union
111 __le16 bd_opaque /* BDs opaque data */;
112 __le16 tq_tid /* Immediate Data with DIF TQe TID */;
118 struct cqe_error_bitmap
120 u8 cqe_error_status_bits;
121 #define CQE_ERROR_BITMAP_DIF_ERR_BITS_MASK 0x7 /* Mark task with DIF error (3 bit): [0]-CRC/checksum, [1]-app tag, [2]-reference tag */
122 #define CQE_ERROR_BITMAP_DIF_ERR_BITS_SHIFT 0
123 #define CQE_ERROR_BITMAP_DATA_DIGEST_ERR_MASK 0x1 /* Mark task with data digest error (1 bit) */
124 #define CQE_ERROR_BITMAP_DATA_DIGEST_ERR_SHIFT 3
125 #define CQE_ERROR_BITMAP_RCV_ON_INVALID_CONN_MASK 0x1 /* Mark receive on invalid connection */
126 #define CQE_ERROR_BITMAP_RCV_ON_INVALID_CONN_SHIFT 4
127 #define CQE_ERROR_BITMAP_DATA_TRUNCATED_ERR_MASK 0x1 /* Target Mode - Mark middle task error, data truncated */
128 #define CQE_ERROR_BITMAP_DATA_TRUNCATED_ERR_SHIFT 5
129 #define CQE_ERROR_BITMAP_UNDER_RUN_ERR_MASK 0x1
130 #define CQE_ERROR_BITMAP_UNDER_RUN_ERR_SHIFT 6
131 #define CQE_ERROR_BITMAP_RESERVED2_MASK 0x1
132 #define CQE_ERROR_BITMAP_RESERVED2_SHIFT 7
135 union cqe_error_status
137 u8 error_status /* all error bits as uint8 */;
138 struct cqe_error_bitmap error_bits /* cqe errors bitmap */;
142 * iSCSI Login Response PDU header
146 __le32 data[12] /* iscsi header data */;
149 struct lun_mapper_addr_reserved
151 struct regpair lun_mapper_addr /* Lun mapper address */;
156 * rdif conetxt for dif on immediate
158 struct dif_on_immediate_params
160 __le32 initial_ref_tag;
161 __le16 application_tag;
162 __le16 application_tag_mask;
164 #define DIF_ON_IMMEDIATE_PARAMS_VALIDATE_GUARD_MASK 0x1
165 #define DIF_ON_IMMEDIATE_PARAMS_VALIDATE_GUARD_SHIFT 0
166 #define DIF_ON_IMMEDIATE_PARAMS_VALIDATE_APP_TAG_MASK 0x1
167 #define DIF_ON_IMMEDIATE_PARAMS_VALIDATE_APP_TAG_SHIFT 1
168 #define DIF_ON_IMMEDIATE_PARAMS_VALIDATE_REF_TAG_MASK 0x1
169 #define DIF_ON_IMMEDIATE_PARAMS_VALIDATE_REF_TAG_SHIFT 2
170 #define DIF_ON_IMMEDIATE_PARAMS_FORWARD_GUARD_MASK 0x1
171 #define DIF_ON_IMMEDIATE_PARAMS_FORWARD_GUARD_SHIFT 3
172 #define DIF_ON_IMMEDIATE_PARAMS_FORWARD_APP_TAG_MASK 0x1
173 #define DIF_ON_IMMEDIATE_PARAMS_FORWARD_APP_TAG_SHIFT 4
174 #define DIF_ON_IMMEDIATE_PARAMS_FORWARD_REF_TAG_MASK 0x1
175 #define DIF_ON_IMMEDIATE_PARAMS_FORWARD_REF_TAG_SHIFT 5
176 #define DIF_ON_IMMEDIATE_PARAMS_INTERVAL_SIZE_MASK 0x1 /* 0=512B, 1=4KB */
177 #define DIF_ON_IMMEDIATE_PARAMS_INTERVAL_SIZE_SHIFT 6
178 #define DIF_ON_IMMEDIATE_PARAMS_NETWORK_INTERFACE_MASK 0x1 /* 0=None, 1=DIF */
179 #define DIF_ON_IMMEDIATE_PARAMS_NETWORK_INTERFACE_SHIFT 7
180 #define DIF_ON_IMMEDIATE_PARAMS_HOST_INTERFACE_MASK 0x3 /* 0=None, 1=DIF, 2=DIX */
181 #define DIF_ON_IMMEDIATE_PARAMS_HOST_INTERFACE_SHIFT 8
182 #define DIF_ON_IMMEDIATE_PARAMS_REF_TAG_MASK_MASK 0xF /* mask for refernce tag handling */
183 #define DIF_ON_IMMEDIATE_PARAMS_REF_TAG_MASK_SHIFT 10
184 #define DIF_ON_IMMEDIATE_PARAMS_FORWARD_APP_TAG_WITH_MASK_MASK 0x1 /* Forward application tag with mask */
185 #define DIF_ON_IMMEDIATE_PARAMS_FORWARD_APP_TAG_WITH_MASK_SHIFT 14
186 #define DIF_ON_IMMEDIATE_PARAMS_FORWARD_REF_TAG_WITH_MASK_MASK 0x1 /* Forward reference tag with mask */
187 #define DIF_ON_IMMEDIATE_PARAMS_FORWARD_REF_TAG_WITH_MASK_SHIFT 15
189 #define DIF_ON_IMMEDIATE_PARAMS_RESERVED_MASK 0x1
190 #define DIF_ON_IMMEDIATE_PARAMS_RESERVED_SHIFT 0
191 #define DIF_ON_IMMEDIATE_PARAMS_IGNORE_APP_TAG_MASK 0x1
192 #define DIF_ON_IMMEDIATE_PARAMS_IGNORE_APP_TAG_SHIFT 1
193 #define DIF_ON_IMMEDIATE_PARAMS_INITIAL_REF_TAG_IS_VALID_MASK 0x1
194 #define DIF_ON_IMMEDIATE_PARAMS_INITIAL_REF_TAG_IS_VALID_SHIFT 2
195 #define DIF_ON_IMMEDIATE_PARAMS_HOST_GUARD_TYPE_MASK 0x1 /* 0 = IP checksum, 1 = CRC */
196 #define DIF_ON_IMMEDIATE_PARAMS_HOST_GUARD_TYPE_SHIFT 3
197 #define DIF_ON_IMMEDIATE_PARAMS_PROTECTION_TYPE_MASK 0x3 /* 1/2/3 - Protection Type */
198 #define DIF_ON_IMMEDIATE_PARAMS_PROTECTION_TYPE_SHIFT 4
199 #define DIF_ON_IMMEDIATE_PARAMS_CRC_SEED_MASK 0x1 /* 0=0x0000, 1=0xffff */
200 #define DIF_ON_IMMEDIATE_PARAMS_CRC_SEED_SHIFT 6
201 #define DIF_ON_IMMEDIATE_PARAMS_KEEP_REF_TAG_CONST_MASK 0x1 /* Keep reference tag constant */
202 #define DIF_ON_IMMEDIATE_PARAMS_KEEP_REF_TAG_CONST_SHIFT 7
207 * iSCSI dif on immediate mode attributes union
209 union dif_configuration_params
211 struct lun_mapper_addr_reserved lun_mapper_address /* lun mapper address */;
212 struct dif_on_immediate_params def_dif_conf /* default dif on immediate rdif configuration */;
216 * Union of data/r2t sequence number
220 __le16 data_sn /* data-in sequence number */;
221 __le16 r2t_sn /* r2t pdu sequence number */;
227 struct iscsi_dif_flags
230 #define ISCSI_DIF_FLAGS_PROT_INTERVAL_SIZE_LOG_MASK 0xF /* Protection log interval (9=512 10=1024 11=2048 12=4096 13=8192) */
231 #define ISCSI_DIF_FLAGS_PROT_INTERVAL_SIZE_LOG_SHIFT 0
232 #define ISCSI_DIF_FLAGS_DIF_TO_PEER_MASK 0x1 /* If DIF protection is configured against target (0=no, 1=yes) */
233 #define ISCSI_DIF_FLAGS_DIF_TO_PEER_SHIFT 4
234 #define ISCSI_DIF_FLAGS_HOST_INTERFACE_MASK 0x7 /* If DIF/DIX protection is configured against the host (0=none, 1=DIF, 2=DIX 2 bytes, 3=DIX 4 bytes, 4=DIX 8 bytes) */
235 #define ISCSI_DIF_FLAGS_HOST_INTERFACE_SHIFT 5
239 * The iscsi storm task context of Ystorm
241 struct ystorm_iscsi_task_state
243 struct scsi_cached_sges data_desc;
244 struct scsi_sgl_params sgl_params;
245 __le32 exp_r2t_sn /* Initiator mode - Expected R2T PDU index in sequence. [variable, initialized 0] */;
246 __le32 buffer_offset /* Payload data offset */;
247 union iscsi_seq_num seq_num /* PDU index in sequence */;
248 struct iscsi_dif_flags dif_flags /* Dif flags */;
250 #define YSTORM_ISCSI_TASK_STATE_LOCAL_COMP_MASK 0x1 /* local_completion */
251 #define YSTORM_ISCSI_TASK_STATE_LOCAL_COMP_SHIFT 0
252 #define YSTORM_ISCSI_TASK_STATE_SLOW_IO_MASK 0x1 /* Equals 1 if SGL is predicted and 0 otherwise. */
253 #define YSTORM_ISCSI_TASK_STATE_SLOW_IO_SHIFT 1
254 #define YSTORM_ISCSI_TASK_STATE_SET_DIF_OFFSET_MASK 0x1 /* Indication for Ystorm that TDIFs offsetInIo is not synced with buffer_offset */
255 #define YSTORM_ISCSI_TASK_STATE_SET_DIF_OFFSET_SHIFT 2
256 #define YSTORM_ISCSI_TASK_STATE_RESERVED0_MASK 0x1F
257 #define YSTORM_ISCSI_TASK_STATE_RESERVED0_SHIFT 3
261 * The iscsi storm task context of Ystorm
263 struct ystorm_iscsi_task_rxmit_opt
265 __le32 fast_rxmit_sge_offset /* SGE offset from which to continue dummy-read or start fast retransmit */;
266 __le32 scan_start_buffer_offset /* Starting buffer offset of next retransmit SGL scan */;
267 __le32 fast_rxmit_buffer_offset /* Buffer offset from which to continue dummy-read or start fast retransmit */;
268 u8 scan_start_sgl_index /* Starting SGL index of next retransmit SGL scan */;
269 u8 fast_rxmit_sgl_index /* SGL index from which to continue dummy-read or start fast retransmit */;
270 __le16 reserved /* reserved */;
274 * iSCSI Common PDU header
276 struct iscsi_common_hdr
278 u8 hdr_status /* Status field of ISCSI header */;
279 u8 hdr_response /* Response field of ISCSI header for Responses / Reserved for Data-In */;
280 u8 hdr_flags /* Flags field of ISCSI header */;
282 #define ISCSI_COMMON_HDR_OPCODE_MASK 0x3F /* Opcode */
283 #define ISCSI_COMMON_HDR_OPCODE_SHIFT 0
284 #define ISCSI_COMMON_HDR_IMM_MASK 0x1 /* Immediate */
285 #define ISCSI_COMMON_HDR_IMM_SHIFT 6
286 #define ISCSI_COMMON_HDR_RSRV_MASK 0x1 /* first bit of iSCSI PDU header */
287 #define ISCSI_COMMON_HDR_RSRV_SHIFT 7
288 __le32 hdr_second_dword;
289 #define ISCSI_COMMON_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */
290 #define ISCSI_COMMON_HDR_DATA_SEG_LEN_SHIFT 0
291 #define ISCSI_COMMON_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */
292 #define ISCSI_COMMON_HDR_TOTAL_AHS_LEN_SHIFT 24
293 struct regpair lun_reserved /* Bytes 8..15 : LUN (if PDU contains a LUN field) or reserved */;
294 __le32 itt /* ITT - common to all headers */;
295 __le32 ttt /* bytes 20 to 23 - common ttt to various PDU headers */;
296 __le32 cmdstat_sn /* bytes 24 to 27 - common cmd_sn (initiator) or stat_sn (target) to various PDU headers */;
297 __le32 exp_statcmd_sn /* bytes 28 to 31 - common expected stat_sn (initiator) or cmd_sn (target) to various PDU headers */;
298 __le32 max_cmd_sn /* bytes 32 to 35 - common max cmd_sn to various PDU headers */;
299 __le32 data[3] /* bytes 36 to 47 */;
303 * iSCSI Command PDU header
307 __le16 reserved1 /* reserved */;
309 #define ISCSI_CMD_HDR_ATTR_MASK 0x7 /* attributes */
310 #define ISCSI_CMD_HDR_ATTR_SHIFT 0
311 #define ISCSI_CMD_HDR_RSRV_MASK 0x3 /* reserved */
312 #define ISCSI_CMD_HDR_RSRV_SHIFT 3
313 #define ISCSI_CMD_HDR_WRITE_MASK 0x1 /* write */
314 #define ISCSI_CMD_HDR_WRITE_SHIFT 5
315 #define ISCSI_CMD_HDR_READ_MASK 0x1 /* read */
316 #define ISCSI_CMD_HDR_READ_SHIFT 6
317 #define ISCSI_CMD_HDR_FINAL_MASK 0x1 /* final */
318 #define ISCSI_CMD_HDR_FINAL_SHIFT 7
320 #define ISCSI_CMD_HDR_OPCODE_MASK 0x3F /* Opcode */
321 #define ISCSI_CMD_HDR_OPCODE_SHIFT 0
322 #define ISCSI_CMD_HDR_IMM_MASK 0x1 /* Immediate delivery */
323 #define ISCSI_CMD_HDR_IMM_SHIFT 6
324 #define ISCSI_CMD_HDR_RSRV1_MASK 0x1 /* first bit of iSCSI PDU header */
325 #define ISCSI_CMD_HDR_RSRV1_SHIFT 7
326 __le32 hdr_second_dword;
327 #define ISCSI_CMD_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */
328 #define ISCSI_CMD_HDR_DATA_SEG_LEN_SHIFT 0
329 #define ISCSI_CMD_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */
330 #define ISCSI_CMD_HDR_TOTAL_AHS_LEN_SHIFT 24
331 struct regpair lun /* Logical Unit Number. [constant, initialized] */;
332 __le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */;
333 __le32 expected_transfer_length /* Expected Data Transfer Length (only 3 bytes are significant) */;
334 __le32 cmd_sn /* CmdSn. [constant, initialized] */;
335 __le32 exp_stat_sn /* various fields for middle-path PDU. [constant, initialized] */;
336 __le32 cdb[4] /* CDB. [constant, initialized] */;
340 * iSCSI Command PDU header with Extended CDB (Initiator Mode)
342 struct iscsi_ext_cdb_cmd_hdr
344 __le16 reserved1 /* reserved */;
346 #define ISCSI_EXT_CDB_CMD_HDR_ATTR_MASK 0x7 /* attributes */
347 #define ISCSI_EXT_CDB_CMD_HDR_ATTR_SHIFT 0
348 #define ISCSI_EXT_CDB_CMD_HDR_RSRV_MASK 0x3 /* reserved */
349 #define ISCSI_EXT_CDB_CMD_HDR_RSRV_SHIFT 3
350 #define ISCSI_EXT_CDB_CMD_HDR_WRITE_MASK 0x1 /* write */
351 #define ISCSI_EXT_CDB_CMD_HDR_WRITE_SHIFT 5
352 #define ISCSI_EXT_CDB_CMD_HDR_READ_MASK 0x1 /* read */
353 #define ISCSI_EXT_CDB_CMD_HDR_READ_SHIFT 6
354 #define ISCSI_EXT_CDB_CMD_HDR_FINAL_MASK 0x1 /* final */
355 #define ISCSI_EXT_CDB_CMD_HDR_FINAL_SHIFT 7
356 u8 opcode /* opcode. [constant, initialized] */;
357 __le32 hdr_second_dword;
358 #define ISCSI_EXT_CDB_CMD_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */
359 #define ISCSI_EXT_CDB_CMD_HDR_DATA_SEG_LEN_SHIFT 0
360 #define ISCSI_EXT_CDB_CMD_HDR_CDB_SIZE_MASK 0xFF /* The Extended CDB size in bytes. Maximum Extended CDB size supported is CDB 64B. */
361 #define ISCSI_EXT_CDB_CMD_HDR_CDB_SIZE_SHIFT 24
362 struct regpair lun /* Logical Unit Number. [constant, initialized] */;
363 __le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */;
364 __le32 expected_transfer_length /* Expected Data Transfer Length (only 3 bytes are significant) */;
365 __le32 cmd_sn /* CmdSn. [constant, initialized] */;
366 __le32 exp_stat_sn /* various fields for middle-path PDU. [constant, initialized] */;
367 struct scsi_sge cdb_sge /* Extended CDBs dedicated SGE */;
371 * iSCSI login request PDU header
373 struct iscsi_login_req_hdr
375 u8 version_min /* Version-min */;
376 u8 version_max /* Version-max */;
378 #define ISCSI_LOGIN_REQ_HDR_NSG_MASK 0x3 /* Next Stage (NSG) */
379 #define ISCSI_LOGIN_REQ_HDR_NSG_SHIFT 0
380 #define ISCSI_LOGIN_REQ_HDR_CSG_MASK 0x3 /* Current stage (CSG) */
381 #define ISCSI_LOGIN_REQ_HDR_CSG_SHIFT 2
382 #define ISCSI_LOGIN_REQ_HDR_RSRV_MASK 0x3 /* reserved */
383 #define ISCSI_LOGIN_REQ_HDR_RSRV_SHIFT 4
384 #define ISCSI_LOGIN_REQ_HDR_C_MASK 0x1 /* C (Continue) bit */
385 #define ISCSI_LOGIN_REQ_HDR_C_SHIFT 6
386 #define ISCSI_LOGIN_REQ_HDR_T_MASK 0x1 /* T (Transit) bit */
387 #define ISCSI_LOGIN_REQ_HDR_T_SHIFT 7
388 u8 opcode /* opcode. [constant, initialized] */;
389 __le32 hdr_second_dword;
390 #define ISCSI_LOGIN_REQ_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */
391 #define ISCSI_LOGIN_REQ_HDR_DATA_SEG_LEN_SHIFT 0
392 #define ISCSI_LOGIN_REQ_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */
393 #define ISCSI_LOGIN_REQ_HDR_TOTAL_AHS_LEN_SHIFT 24
394 __le32 isid_tabc /* Session identifier high double word [constant, initialized] */;
395 __le16 tsih /* TSIH */;
396 __le16 isid_d /* Session identifier low word [constant, initialized] */;
397 __le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */;
399 __le16 cid /* Unique Connection ID within the session [constant, initialized] */;
400 __le32 cmd_sn /* CmdSn. [constant, initialized] */;
401 __le32 exp_stat_sn /* various fields for middle-path PDU. [constant, initialized] */;
406 * iSCSI logout request PDU header
408 struct iscsi_logout_req_hdr
410 __le16 reserved0 /* reserved */;
411 u8 reason_code /* Reason Code */;
412 u8 opcode /* opcode. [constant, initialized] */;
414 __le32 reserved2[2] /* Reserved */;
415 __le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */;
416 __le16 reserved3 /* Reserved */;
417 __le16 cid /* Unique Connection ID within the session [constant, initialized] */;
418 __le32 cmd_sn /* CmdSn. [constant, initialized] */;
419 __le32 exp_stat_sn /* various fields for middle-path PDU. [constant, initialized] */;
420 __le32 reserved4[4] /* Reserved */;
424 * iSCSI Data-out PDU header
426 struct iscsi_data_out_hdr
428 __le16 reserved1 /* reserved */;
430 #define ISCSI_DATA_OUT_HDR_RSRV_MASK 0x7F /* reserved */
431 #define ISCSI_DATA_OUT_HDR_RSRV_SHIFT 0
432 #define ISCSI_DATA_OUT_HDR_FINAL_MASK 0x1 /* final */
433 #define ISCSI_DATA_OUT_HDR_FINAL_SHIFT 7
434 u8 opcode /* opcode */;
435 __le32 reserved2 /* reserved */;
436 struct regpair lun /* Logical Unit Number */;
437 __le32 itt /* Initiator Task Tag (only 2 bytes are significant) */;
438 __le32 ttt /* Target Transfer Tag (from R2T) */;
439 __le32 reserved3 /* resrved */;
440 __le32 exp_stat_sn /* Expected StatSn */;
441 __le32 reserved4 /* resrved */;
442 __le32 data_sn /* DataSN - PDU index in sequnece */;
443 __le32 buffer_offset /* Buffer Offset - offset in task */;
444 __le32 reserved5 /* resrved */;
448 * iSCSI Data-in PDU header
450 struct iscsi_data_in_hdr
452 u8 status_rsvd /* Status or reserved */;
453 u8 reserved1 /* reserved */;
455 #define ISCSI_DATA_IN_HDR_STATUS_MASK 0x1 /* Status */
456 #define ISCSI_DATA_IN_HDR_STATUS_SHIFT 0
457 #define ISCSI_DATA_IN_HDR_UNDERFLOW_MASK 0x1 /* Residual Underflow */
458 #define ISCSI_DATA_IN_HDR_UNDERFLOW_SHIFT 1
459 #define ISCSI_DATA_IN_HDR_OVERFLOW_MASK 0x1 /* Residual Overflow */
460 #define ISCSI_DATA_IN_HDR_OVERFLOW_SHIFT 2
461 #define ISCSI_DATA_IN_HDR_RSRV_MASK 0x7 /* reserved - 0 */
462 #define ISCSI_DATA_IN_HDR_RSRV_SHIFT 3
463 #define ISCSI_DATA_IN_HDR_ACK_MASK 0x1 /* Acknowledge */
464 #define ISCSI_DATA_IN_HDR_ACK_SHIFT 6
465 #define ISCSI_DATA_IN_HDR_FINAL_MASK 0x1 /* final */
466 #define ISCSI_DATA_IN_HDR_FINAL_SHIFT 7
467 u8 opcode /* opcode */;
468 __le32 reserved2 /* reserved */;
469 struct regpair lun /* Logical Unit Number */;
470 __le32 itt /* Initiator Task Tag (only 2 bytes are significant) */;
471 __le32 ttt /* Target Transfer Tag (from R2T) */;
472 __le32 stat_sn /* StatSN or reserved */;
473 __le32 exp_cmd_sn /* Expected CmdSn */;
474 __le32 max_cmd_sn /* MaxCmdSn */;
475 __le32 data_sn /* DataSN - PDU index in sequnece */;
476 __le32 buffer_offset /* Buffer Offset - offset in task */;
477 __le32 residual_count /* Residual Count */;
481 * iSCSI R2T PDU header
485 u8 reserved0[3] /* reserved */;
486 u8 opcode /* opcode */;
487 __le32 reserved2 /* reserved */;
488 struct regpair lun /* Logical Unit Number */;
489 __le32 itt /* Initiator Task Tag */;
490 __le32 ttt /* Target Transfer Tag */;
491 __le32 stat_sn /* stat sn */;
492 __le32 exp_cmd_sn /* Expected CmdSn */;
493 __le32 max_cmd_sn /* Max CmdSn */;
494 __le32 r2t_sn /* DataSN - PDU index in sequnece */;
495 __le32 buffer_offset /* Buffer Offset - offset in task */;
496 __le32 desired_data_trns_len /* Desired data trnsfer len */;
500 * iSCSI NOP-out PDU header
502 struct iscsi_nop_out_hdr
504 __le16 reserved1 /* reserved */;
506 #define ISCSI_NOP_OUT_HDR_RSRV_MASK 0x7F /* reserved */
507 #define ISCSI_NOP_OUT_HDR_RSRV_SHIFT 0
508 #define ISCSI_NOP_OUT_HDR_CONST1_MASK 0x1 /* const1 */
509 #define ISCSI_NOP_OUT_HDR_CONST1_SHIFT 7
510 u8 opcode /* opcode */;
511 __le32 reserved2 /* reserved */;
512 struct regpair lun /* Logical Unit Number */;
513 __le32 itt /* Initiator Task Tag (only 2 bytes are significant) */;
514 __le32 ttt /* Target Transfer Tag (from R2T) */;
515 __le32 cmd_sn /* CmdSN */;
516 __le32 exp_stat_sn /* Expected StatSn */;
517 __le32 reserved3 /* reserved */;
518 __le32 reserved4 /* reserved */;
519 __le32 reserved5 /* reserved */;
520 __le32 reserved6 /* reserved */;
524 * iSCSI NOP-in PDU header
526 struct iscsi_nop_in_hdr
528 __le16 reserved0 /* reserved */;
530 #define ISCSI_NOP_IN_HDR_RSRV_MASK 0x7F /* reserved */
531 #define ISCSI_NOP_IN_HDR_RSRV_SHIFT 0
532 #define ISCSI_NOP_IN_HDR_CONST1_MASK 0x1 /* const1 */
533 #define ISCSI_NOP_IN_HDR_CONST1_SHIFT 7
534 u8 opcode /* opcode */;
535 __le32 hdr_second_dword;
536 #define ISCSI_NOP_IN_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */
537 #define ISCSI_NOP_IN_HDR_DATA_SEG_LEN_SHIFT 0
538 #define ISCSI_NOP_IN_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */
539 #define ISCSI_NOP_IN_HDR_TOTAL_AHS_LEN_SHIFT 24
540 struct regpair lun /* Logical Unit Number */;
541 __le32 itt /* Initiator Task Tag (only 2 bytes are significant) */;
542 __le32 ttt /* Target Transfer Tag */;
543 __le32 stat_sn /* stat_sn */;
544 __le32 exp_cmd_sn /* exp_cmd_sn */;
545 __le32 max_cmd_sn /* max_cmd_sn */;
546 __le32 reserved5 /* reserved */;
547 __le32 reserved6 /* reserved */;
548 __le32 reserved7 /* reserved */;
552 * iSCSI Login Response PDU header
554 struct iscsi_login_response_hdr
556 u8 version_active /* Version-active */;
557 u8 version_max /* Version-max */;
559 #define ISCSI_LOGIN_RESPONSE_HDR_NSG_MASK 0x3 /* Next Stage (NSG) */
560 #define ISCSI_LOGIN_RESPONSE_HDR_NSG_SHIFT 0
561 #define ISCSI_LOGIN_RESPONSE_HDR_CSG_MASK 0x3 /* Current stage (CSG) */
562 #define ISCSI_LOGIN_RESPONSE_HDR_CSG_SHIFT 2
563 #define ISCSI_LOGIN_RESPONSE_HDR_RSRV_MASK 0x3 /* reserved */
564 #define ISCSI_LOGIN_RESPONSE_HDR_RSRV_SHIFT 4
565 #define ISCSI_LOGIN_RESPONSE_HDR_C_MASK 0x1 /* C (Continue) bit */
566 #define ISCSI_LOGIN_RESPONSE_HDR_C_SHIFT 6
567 #define ISCSI_LOGIN_RESPONSE_HDR_T_MASK 0x1 /* T (Transit) bit */
568 #define ISCSI_LOGIN_RESPONSE_HDR_T_SHIFT 7
569 u8 opcode /* opcode. [constant, initialized] */;
570 __le32 hdr_second_dword;
571 #define ISCSI_LOGIN_RESPONSE_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */
572 #define ISCSI_LOGIN_RESPONSE_HDR_DATA_SEG_LEN_SHIFT 0
573 #define ISCSI_LOGIN_RESPONSE_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */
574 #define ISCSI_LOGIN_RESPONSE_HDR_TOTAL_AHS_LEN_SHIFT 24
575 __le32 isid_tabc /* Session identifier high double word [constant, initialized] */;
576 __le16 tsih /* TSIH */;
577 __le16 isid_d /* Session identifier low word [constant, initialized] */;
578 __le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */;
580 __le32 stat_sn /* CmdSn. [constant, initialized] */;
581 __le32 exp_cmd_sn /* various fields for middle-path PDU. [constant, initialized] */;
582 __le32 max_cmd_sn /* max_cmd_sn */;
584 u8 status_detail /* status_detail */;
585 u8 status_class /* status_class */;
590 * iSCSI Logout Response PDU header
592 struct iscsi_logout_response_hdr
594 u8 reserved1 /* reserved */;
595 u8 response /* response */;
596 u8 flags /* flags and attributes */;
597 u8 opcode /* opcode. [constant, initialized] */;
598 __le32 hdr_second_dword;
599 #define ISCSI_LOGOUT_RESPONSE_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */
600 #define ISCSI_LOGOUT_RESPONSE_HDR_DATA_SEG_LEN_SHIFT 0
601 #define ISCSI_LOGOUT_RESPONSE_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */
602 #define ISCSI_LOGOUT_RESPONSE_HDR_TOTAL_AHS_LEN_SHIFT 24
603 __le32 reserved2[2] /* Reserved */;
604 __le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */;
605 __le32 reserved3 /* Reserved */;
606 __le32 stat_sn /* CmdSN */;
607 __le32 exp_cmd_sn /* Expected StatSn */;
608 __le32 max_cmd_sn /* CmdSN */;
609 __le32 reserved4 /* Reserved */;
610 __le16 time_2_retain /* Time to Retain */;
611 __le16 time_2_wait /* Time to wait */;
612 __le32 reserved5[1] /* Reserved */;
616 * iSCSI Text Request PDU header
618 struct iscsi_text_request_hdr
620 __le16 reserved0 /* reserved */;
622 #define ISCSI_TEXT_REQUEST_HDR_RSRV_MASK 0x3F /* reserved */
623 #define ISCSI_TEXT_REQUEST_HDR_RSRV_SHIFT 0
624 #define ISCSI_TEXT_REQUEST_HDR_C_MASK 0x1 /* C (Continue) bit */
625 #define ISCSI_TEXT_REQUEST_HDR_C_SHIFT 6
626 #define ISCSI_TEXT_REQUEST_HDR_F_MASK 0x1 /* F (Final) bit */
627 #define ISCSI_TEXT_REQUEST_HDR_F_SHIFT 7
628 u8 opcode /* opcode. [constant, initialized] */;
629 __le32 hdr_second_dword;
630 #define ISCSI_TEXT_REQUEST_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */
631 #define ISCSI_TEXT_REQUEST_HDR_DATA_SEG_LEN_SHIFT 0
632 #define ISCSI_TEXT_REQUEST_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */
633 #define ISCSI_TEXT_REQUEST_HDR_TOTAL_AHS_LEN_SHIFT 24
634 struct regpair lun /* Logical Unit Number */;
635 __le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */;
636 __le32 ttt /* Referenced Task Tag or 0xffffffff */;
637 __le32 cmd_sn /* cmd_sn */;
638 __le32 exp_stat_sn /* exp_stat_sn */;
639 __le32 reserved4[4] /* Reserved */;
643 * iSCSI Text Response PDU header
645 struct iscsi_text_response_hdr
647 __le16 reserved1 /* reserved */;
649 #define ISCSI_TEXT_RESPONSE_HDR_RSRV_MASK 0x3F /* reserved */
650 #define ISCSI_TEXT_RESPONSE_HDR_RSRV_SHIFT 0
651 #define ISCSI_TEXT_RESPONSE_HDR_C_MASK 0x1 /* C (Continue) bit */
652 #define ISCSI_TEXT_RESPONSE_HDR_C_SHIFT 6
653 #define ISCSI_TEXT_RESPONSE_HDR_F_MASK 0x1 /* F (Final) bit */
654 #define ISCSI_TEXT_RESPONSE_HDR_F_SHIFT 7
655 u8 opcode /* opcode. [constant, initialized] */;
656 __le32 hdr_second_dword;
657 #define ISCSI_TEXT_RESPONSE_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */
658 #define ISCSI_TEXT_RESPONSE_HDR_DATA_SEG_LEN_SHIFT 0
659 #define ISCSI_TEXT_RESPONSE_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */
660 #define ISCSI_TEXT_RESPONSE_HDR_TOTAL_AHS_LEN_SHIFT 24
661 struct regpair lun /* Logical Unit Number */;
662 __le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */;
663 __le32 ttt /* Target Task Tag */;
664 __le32 stat_sn /* CmdSN */;
665 __le32 exp_cmd_sn /* Expected StatSn */;
666 __le32 max_cmd_sn /* CmdSN */;
667 __le32 reserved4[3] /* Reserved */;
671 * iSCSI TMF Request PDU header
673 struct iscsi_tmf_request_hdr
675 __le16 reserved0 /* reserved */;
676 u8 function /* function */;
677 u8 opcode /* opcode. [constant, initialized] */;
678 __le32 hdr_second_dword;
679 #define ISCSI_TMF_REQUEST_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */
680 #define ISCSI_TMF_REQUEST_HDR_DATA_SEG_LEN_SHIFT 0
681 #define ISCSI_TMF_REQUEST_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */
682 #define ISCSI_TMF_REQUEST_HDR_TOTAL_AHS_LEN_SHIFT 24
683 struct regpair lun /* Logical Unit Number */;
684 __le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */;
685 __le32 rtt /* Referenced Task Tag or 0xffffffff */;
686 __le32 cmd_sn /* cmd_sn */;
687 __le32 exp_stat_sn /* exp_stat_sn */;
688 __le32 ref_cmd_sn /* ref_cmd_sn */;
689 __le32 exp_data_sn /* exp_data_sn */;
690 __le32 reserved4[2] /* Reserved */;
693 struct iscsi_tmf_response_hdr
695 u8 reserved2 /* reserved2 */;
696 u8 hdr_response /* Response field of ISCSI header for Responses / Reserved for Data-In */;
697 u8 hdr_flags /* Flags field of ISCSI header */;
698 u8 opcode /* opcode. [constant, initialized] */;
699 __le32 hdr_second_dword;
700 #define ISCSI_TMF_RESPONSE_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */
701 #define ISCSI_TMF_RESPONSE_HDR_DATA_SEG_LEN_SHIFT 0
702 #define ISCSI_TMF_RESPONSE_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */
703 #define ISCSI_TMF_RESPONSE_HDR_TOTAL_AHS_LEN_SHIFT 24
704 struct regpair reserved0;
705 __le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */;
706 __le32 reserved1 /* Reserved */;
707 __le32 stat_sn /* stat_sn */;
708 __le32 exp_cmd_sn /* exp_cmd_sn */;
709 __le32 max_cmd_sn /* max_cmd_sn */;
710 __le32 reserved4[3] /* Reserved */;
714 * iSCSI Response PDU header
716 struct iscsi_response_hdr
718 u8 hdr_status /* Status field of ISCSI header */;
719 u8 hdr_response /* Response field of ISCSI header for Responses / Reserved for Data-In */;
720 u8 hdr_flags /* Flags field of ISCSI header */;
721 u8 opcode /* opcode. [constant, initialized] */;
722 __le32 hdr_second_dword;
723 #define ISCSI_RESPONSE_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */
724 #define ISCSI_RESPONSE_HDR_DATA_SEG_LEN_SHIFT 0
725 #define ISCSI_RESPONSE_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */
726 #define ISCSI_RESPONSE_HDR_TOTAL_AHS_LEN_SHIFT 24
727 struct regpair lun /* Logical Unit Number */;
728 __le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */;
729 __le32 snack_tag /* Currently ERL>0 is not supported */;
730 __le32 stat_sn /* CmdSN */;
731 __le32 exp_cmd_sn /* Expected StatSn */;
732 __le32 max_cmd_sn /* CmdSN */;
733 __le32 exp_data_sn /* exp_data_sn */;
734 __le32 bi_residual_count /* bi residual count */;
735 __le32 residual_count /* residual count */;
739 * iSCSI Reject PDU header
741 struct iscsi_reject_hdr
743 u8 reserved4 /* Reserved */;
744 u8 hdr_reason /* The reject reason */;
745 u8 hdr_flags /* Flags field of ISCSI header */;
746 u8 opcode /* opcode. [constant, initialized] */;
747 __le32 hdr_second_dword;
748 #define ISCSI_REJECT_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */
749 #define ISCSI_REJECT_HDR_DATA_SEG_LEN_SHIFT 0
750 #define ISCSI_REJECT_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */
751 #define ISCSI_REJECT_HDR_TOTAL_AHS_LEN_SHIFT 24
752 struct regpair reserved0;
755 __le32 stat_sn /* stat_sn */;
756 __le32 exp_cmd_sn /* exp_cmd_sn */;
757 __le32 max_cmd_sn /* max_cmd_sn */;
758 __le32 data_sn /* data_sn */;
759 __le32 reserved3[2] /* reserved3 */;
763 * iSCSI Asynchronous Message PDU header
765 struct iscsi_async_msg_hdr
767 __le16 reserved0 /* reserved */;
769 #define ISCSI_ASYNC_MSG_HDR_RSRV_MASK 0x7F /* reserved */
770 #define ISCSI_ASYNC_MSG_HDR_RSRV_SHIFT 0
771 #define ISCSI_ASYNC_MSG_HDR_CONST1_MASK 0x1 /* const1 */
772 #define ISCSI_ASYNC_MSG_HDR_CONST1_SHIFT 7
773 u8 opcode /* opcode */;
774 __le32 hdr_second_dword;
775 #define ISCSI_ASYNC_MSG_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */
776 #define ISCSI_ASYNC_MSG_HDR_DATA_SEG_LEN_SHIFT 0
777 #define ISCSI_ASYNC_MSG_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */
778 #define ISCSI_ASYNC_MSG_HDR_TOTAL_AHS_LEN_SHIFT 24
779 struct regpair lun /* Logical Unit Number */;
780 __le32 all_ones /* should be 0xffffffff */;
781 __le32 reserved1 /* reserved */;
782 __le32 stat_sn /* stat_sn */;
783 __le32 exp_cmd_sn /* exp_cmd_sn */;
784 __le32 max_cmd_sn /* max_cmd_sn */;
785 __le16 param1_rsrv /* Parameter1 or Reserved */;
786 u8 async_vcode /* AsuncVCode */;
787 u8 async_event /* AsyncEvent */;
788 __le16 param3_rsrv /* Parameter3 or Reserved */;
789 __le16 param2_rsrv /* Parameter2 or Reserved */;
790 __le32 reserved7 /* reserved */;
794 * PDU header part of Ystorm task context
798 struct iscsi_common_hdr common /* Command PDU header */;
799 struct data_hdr data /* Command PDU header */;
800 struct iscsi_cmd_hdr cmd /* Command PDU header */;
801 struct iscsi_ext_cdb_cmd_hdr ext_cdb_cmd /* Command PDU header with extended CDB - Initiator Mode */;
802 struct iscsi_login_req_hdr login_req /* Login request PDU header */;
803 struct iscsi_logout_req_hdr logout_req /* Logout request PDU header */;
804 struct iscsi_data_out_hdr data_out /* Data-out PDU header */;
805 struct iscsi_data_in_hdr data_in /* Data-in PDU header */;
806 struct iscsi_r2t_hdr r2t /* R2T PDU header */;
807 struct iscsi_nop_out_hdr nop_out /* NOP-out PDU header */;
808 struct iscsi_nop_in_hdr nop_in /* NOP-in PDU header */;
809 struct iscsi_login_response_hdr login_response /* Login response PDU header */;
810 struct iscsi_logout_response_hdr logout_response /* Logout response PDU header */;
811 struct iscsi_text_request_hdr text_request /* Text request PDU header */;
812 struct iscsi_text_response_hdr text_response /* Text response PDU header */;
813 struct iscsi_tmf_request_hdr tmf_request /* TMF request PDU header */;
814 struct iscsi_tmf_response_hdr tmf_response /* TMF response PDU header */;
815 struct iscsi_response_hdr response /* Text response PDU header */;
816 struct iscsi_reject_hdr reject /* Reject PDU header */;
817 struct iscsi_async_msg_hdr async_msg /* Asynchronous Message PDU header */;
821 * The iscsi storm task context of Ystorm
823 struct ystorm_iscsi_task_st_ctx
825 struct ystorm_iscsi_task_state state /* iSCSI task parameters and state */;
826 struct ystorm_iscsi_task_rxmit_opt rxmit_opt /* iSCSI retransmit optimizations parameters */;
827 union iscsi_task_hdr pdu_hdr /* PDU header - [constant initialized] */;
830 struct e4_ystorm_iscsi_task_ag_ctx
832 u8 reserved /* cdu_validation */;
833 u8 byte1 /* state */;
834 __le16 word0 /* icid */;
836 #define E4_YSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_MASK 0xF /* connection_type */
837 #define E4_YSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_SHIFT 0
838 #define E4_YSTORM_ISCSI_TASK_AG_CTX_BIT0_MASK 0x1 /* exist_in_qm0 */
839 #define E4_YSTORM_ISCSI_TASK_AG_CTX_BIT0_SHIFT 4
840 #define E4_YSTORM_ISCSI_TASK_AG_CTX_BIT1_MASK 0x1 /* exist_in_qm1 */
841 #define E4_YSTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT 5
842 #define E4_YSTORM_ISCSI_TASK_AG_CTX_VALID_MASK 0x1 /* bit2 */
843 #define E4_YSTORM_ISCSI_TASK_AG_CTX_VALID_SHIFT 6
844 #define E4_YSTORM_ISCSI_TASK_AG_CTX_TTT_VALID_MASK 0x1 /* bit3 */
845 #define E4_YSTORM_ISCSI_TASK_AG_CTX_TTT_VALID_SHIFT 7
847 #define E4_YSTORM_ISCSI_TASK_AG_CTX_CF0_MASK 0x3 /* cf0 */
848 #define E4_YSTORM_ISCSI_TASK_AG_CTX_CF0_SHIFT 0
849 #define E4_YSTORM_ISCSI_TASK_AG_CTX_CF1_MASK 0x3 /* cf1 */
850 #define E4_YSTORM_ISCSI_TASK_AG_CTX_CF1_SHIFT 2
851 #define E4_YSTORM_ISCSI_TASK_AG_CTX_CF2SPECIAL_MASK 0x3 /* cf2special */
852 #define E4_YSTORM_ISCSI_TASK_AG_CTX_CF2SPECIAL_SHIFT 4
853 #define E4_YSTORM_ISCSI_TASK_AG_CTX_CF0EN_MASK 0x1 /* cf0en */
854 #define E4_YSTORM_ISCSI_TASK_AG_CTX_CF0EN_SHIFT 6
855 #define E4_YSTORM_ISCSI_TASK_AG_CTX_CF1EN_MASK 0x1 /* cf1en */
856 #define E4_YSTORM_ISCSI_TASK_AG_CTX_CF1EN_SHIFT 7
858 #define E4_YSTORM_ISCSI_TASK_AG_CTX_BIT4_MASK 0x1 /* bit4 */
859 #define E4_YSTORM_ISCSI_TASK_AG_CTX_BIT4_SHIFT 0
860 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE0EN_MASK 0x1 /* rule0en */
861 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE0EN_SHIFT 1
862 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1 /* rule1en */
863 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 2
864 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE2EN_MASK 0x1 /* rule2en */
865 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE2EN_SHIFT 3
866 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1 /* rule3en */
867 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 4
868 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1 /* rule4en */
869 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 5
870 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1 /* rule5en */
871 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 6
872 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE6EN_MASK 0x1 /* rule6en */
873 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE6EN_SHIFT 7
874 u8 byte2 /* byte2 */;
875 __le32 TTT /* reg0 */;
876 u8 byte3 /* byte3 */;
877 u8 byte4 /* byte4 */;
878 __le16 word1 /* word1 */;
881 struct e4_mstorm_iscsi_task_ag_ctx
883 u8 cdu_validation /* cdu_validation */;
884 u8 byte1 /* state */;
885 __le16 task_cid /* icid */;
887 #define E4_MSTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_MASK 0xF /* connection_type */
888 #define E4_MSTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_SHIFT 0
889 #define E4_MSTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_MASK 0x1 /* exist_in_qm0 */
890 #define E4_MSTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_SHIFT 4
891 #define E4_MSTORM_ISCSI_TASK_AG_CTX_BIT1_MASK 0x1 /* exist_in_qm1 */
892 #define E4_MSTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT 5
893 #define E4_MSTORM_ISCSI_TASK_AG_CTX_VALID_MASK 0x1 /* bit2 */
894 #define E4_MSTORM_ISCSI_TASK_AG_CTX_VALID_SHIFT 6
895 #define E4_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_FLAG_MASK 0x1 /* bit3 */
896 #define E4_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_FLAG_SHIFT 7
898 #define E4_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_MASK 0x3 /* cf0 */
899 #define E4_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_SHIFT 0
900 #define E4_MSTORM_ISCSI_TASK_AG_CTX_CF1_MASK 0x3 /* cf1 */
901 #define E4_MSTORM_ISCSI_TASK_AG_CTX_CF1_SHIFT 2
902 #define E4_MSTORM_ISCSI_TASK_AG_CTX_CF2_MASK 0x3 /* cf2 */
903 #define E4_MSTORM_ISCSI_TASK_AG_CTX_CF2_SHIFT 4
904 #define E4_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_EN_MASK 0x1 /* cf0en */
905 #define E4_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_EN_SHIFT 6
906 #define E4_MSTORM_ISCSI_TASK_AG_CTX_CF1EN_MASK 0x1 /* cf1en */
907 #define E4_MSTORM_ISCSI_TASK_AG_CTX_CF1EN_SHIFT 7
909 #define E4_MSTORM_ISCSI_TASK_AG_CTX_CF2EN_MASK 0x1 /* cf2en */
910 #define E4_MSTORM_ISCSI_TASK_AG_CTX_CF2EN_SHIFT 0
911 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE0EN_MASK 0x1 /* rule0en */
912 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE0EN_SHIFT 1
913 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1 /* rule1en */
914 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 2
915 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE2EN_MASK 0x1 /* rule2en */
916 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE2EN_SHIFT 3
917 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1 /* rule3en */
918 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 4
919 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1 /* rule4en */
920 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 5
921 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1 /* rule5en */
922 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 6
923 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE6EN_MASK 0x1 /* rule6en */
924 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE6EN_SHIFT 7
925 u8 byte2 /* byte2 */;
926 __le32 reg0 /* reg0 */;
927 u8 byte3 /* byte3 */;
928 u8 byte4 /* byte4 */;
929 __le16 word1 /* word1 */;
932 struct e4_ustorm_iscsi_task_ag_ctx
934 u8 reserved /* cdu_validation */;
935 u8 state /* state */;
936 __le16 icid /* icid */;
938 #define E4_USTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_MASK 0xF /* connection_type */
939 #define E4_USTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_SHIFT 0
940 #define E4_USTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_MASK 0x1 /* exist_in_qm0 */
941 #define E4_USTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_SHIFT 4
942 #define E4_USTORM_ISCSI_TASK_AG_CTX_BIT1_MASK 0x1 /* exist_in_qm1 */
943 #define E4_USTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT 5
944 #define E4_USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_MASK 0x3 /* timer0cf */
945 #define E4_USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_SHIFT 6
947 #define E4_USTORM_ISCSI_TASK_AG_CTX_RESERVED1_MASK 0x3 /* timer1cf */
948 #define E4_USTORM_ISCSI_TASK_AG_CTX_RESERVED1_SHIFT 0
949 #define E4_USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_MASK 0x3 /* timer2cf */
950 #define E4_USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_SHIFT 2
951 #define E4_USTORM_ISCSI_TASK_AG_CTX_CF3_MASK 0x3 /* timer_stop_all */
952 #define E4_USTORM_ISCSI_TASK_AG_CTX_CF3_SHIFT 4
953 #define E4_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_MASK 0x3 /* cf4 */
954 #define E4_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_SHIFT 6
956 #define E4_USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_EN_MASK 0x1 /* cf0en */
957 #define E4_USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_EN_SHIFT 0
958 #define E4_USTORM_ISCSI_TASK_AG_CTX_DISABLE_DATA_ACKED_MASK 0x1 /* cf1en */
959 #define E4_USTORM_ISCSI_TASK_AG_CTX_DISABLE_DATA_ACKED_SHIFT 1
960 #define E4_USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_EN_MASK 0x1 /* cf2en */
961 #define E4_USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_EN_SHIFT 2
962 #define E4_USTORM_ISCSI_TASK_AG_CTX_CF3EN_MASK 0x1 /* cf3en */
963 #define E4_USTORM_ISCSI_TASK_AG_CTX_CF3EN_SHIFT 3
964 #define E4_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_EN_MASK 0x1 /* cf4en */
965 #define E4_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_EN_SHIFT 4
966 #define E4_USTORM_ISCSI_TASK_AG_CTX_CMP_DATA_TOTAL_EXP_EN_MASK 0x1 /* rule0en */
967 #define E4_USTORM_ISCSI_TASK_AG_CTX_CMP_DATA_TOTAL_EXP_EN_SHIFT 5
968 #define E4_USTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1 /* rule1en */
969 #define E4_USTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 6
970 #define E4_USTORM_ISCSI_TASK_AG_CTX_CMP_CONT_RCV_EXP_EN_MASK 0x1 /* rule2en */
971 #define E4_USTORM_ISCSI_TASK_AG_CTX_CMP_CONT_RCV_EXP_EN_SHIFT 7
973 #define E4_USTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1 /* rule3en */
974 #define E4_USTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 0
975 #define E4_USTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1 /* rule4en */
976 #define E4_USTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 1
977 #define E4_USTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1 /* rule5en */
978 #define E4_USTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 2
979 #define E4_USTORM_ISCSI_TASK_AG_CTX_RULE6EN_MASK 0x1 /* rule6en */
980 #define E4_USTORM_ISCSI_TASK_AG_CTX_RULE6EN_SHIFT 3
981 #define E4_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_TYPE_MASK 0xF /* nibble1 */
982 #define E4_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_TYPE_SHIFT 4
983 __le32 dif_err_intervals /* reg0 */;
984 __le32 dif_error_1st_interval /* reg1 */;
985 __le32 rcv_cont_len /* reg2 */;
986 __le32 exp_cont_len /* reg3 */;
987 __le32 total_data_acked /* reg4 */;
988 __le32 exp_data_acked /* reg5 */;
989 u8 next_tid_valid /* byte2 */;
990 u8 byte3 /* byte3 */;
991 __le16 word1 /* word1 */;
992 __le16 next_tid /* word2 */;
993 __le16 word3 /* word3 */;
994 __le32 hdr_residual_count /* reg6 */;
995 __le32 exp_r2t_sn /* reg7 */;
999 * The iscsi storm task context of Mstorm
1001 struct mstorm_iscsi_task_st_ctx
1003 struct scsi_cached_sges data_desc /* Union of Data SGL / cached sge */;
1004 struct scsi_sgl_params sgl_params;
1005 __le32 rem_task_size /* Remaining task size, used for placement verification */;
1006 __le32 data_buffer_offset /* Buffer offset */;
1007 u8 task_type /* Task type, (use: iscsi_task_type enum) */;
1008 struct iscsi_dif_flags dif_flags /* sizes of host/peer protection intervals + protection log interval */;
1009 __le16 dif_task_icid /* save tasks CID for validation - dif on immediate flow */;
1010 struct regpair sense_db /* Pointer to sense data buffer */;
1011 __le32 expected_itt /* ITT - for target mode validations */;
1012 __le32 reserved1 /* reserved1 */;
1018 #define ISCSI_REG1_NUM_SGES_MASK 0xF /* Written to R2tQE */
1019 #define ISCSI_REG1_NUM_SGES_SHIFT 0
1020 #define ISCSI_REG1_RESERVED1_MASK 0xFFFFFFF /* reserved */
1021 #define ISCSI_REG1_RESERVED1_SHIFT 4
1026 __le16 opaque[2] /* TQe opaque */;
1030 * The iscsi storm task context of Ustorm
1032 struct ustorm_iscsi_task_st_ctx
1034 __le32 rem_rcv_len /* Remaining data to be received in bytes. Used in validations */;
1035 __le32 exp_data_transfer_len /* iSCSI Initiator - The size of the transmitted task, iSCSI Target - the size of the Rx continuation */;
1036 __le32 exp_data_sn /* Expected data SN */;
1037 struct regpair lun /* LUN */;
1038 struct iscsi_reg1 reg1;
1040 #define USTORM_ISCSI_TASK_ST_CTX_AHS_EXIST_MASK 0x1 /* Initiator Mode - Mark AHS exist */
1041 #define USTORM_ISCSI_TASK_ST_CTX_AHS_EXIST_SHIFT 0
1042 #define USTORM_ISCSI_TASK_ST_CTX_RESERVED1_MASK 0x7F
1043 #define USTORM_ISCSI_TASK_ST_CTX_RESERVED1_SHIFT 1
1044 struct iscsi_dif_flags dif_flags /* Dif flags (written to R2T WQE) */;
1046 struct tqe_opaque tqe_opaque_list;
1050 u8 task_type /* Task Type */;
1052 #define USTORM_ISCSI_TASK_ST_CTX_DATA_DIGEST_ERROR_MASK 0x1 /* Mark task with data digest error (1 bit) */
1053 #define USTORM_ISCSI_TASK_ST_CTX_DATA_DIGEST_ERROR_SHIFT 0
1054 #define USTORM_ISCSI_TASK_ST_CTX_DATA_TRUNCATED_ERROR_MASK 0x1 /* Target Mode - Mark middle task error, data truncated */
1055 #define USTORM_ISCSI_TASK_ST_CTX_DATA_TRUNCATED_ERROR_SHIFT 1
1056 #define USTORM_ISCSI_TASK_ST_CTX_UNDER_RUN_ERROR_MASK 0x1
1057 #define USTORM_ISCSI_TASK_ST_CTX_UNDER_RUN_ERROR_SHIFT 2
1058 #define USTORM_ISCSI_TASK_ST_CTX_RESERVED8_MASK 0x1F
1059 #define USTORM_ISCSI_TASK_ST_CTX_RESERVED8_SHIFT 3
1061 #define USTORM_ISCSI_TASK_ST_CTX_CQE_WRITE_MASK 0x3 /* mark task cqe write (for cleanup flow) */
1062 #define USTORM_ISCSI_TASK_ST_CTX_CQE_WRITE_SHIFT 0
1063 #define USTORM_ISCSI_TASK_ST_CTX_LOCAL_COMP_MASK 0x1 /* local completion bit */
1064 #define USTORM_ISCSI_TASK_ST_CTX_LOCAL_COMP_SHIFT 2
1065 #define USTORM_ISCSI_TASK_ST_CTX_Q0_R2TQE_WRITE_MASK 0x1 /* write R2TQE from Q0 flow */
1066 #define USTORM_ISCSI_TASK_ST_CTX_Q0_R2TQE_WRITE_SHIFT 3
1067 #define USTORM_ISCSI_TASK_ST_CTX_TOTAL_DATA_ACKED_DONE_MASK 0x1 /* Mark total data acked or disabled */
1068 #define USTORM_ISCSI_TASK_ST_CTX_TOTAL_DATA_ACKED_DONE_SHIFT 4
1069 #define USTORM_ISCSI_TASK_ST_CTX_HQ_SCANNED_DONE_MASK 0x1 /* Mark HQ scanned or disabled */
1070 #define USTORM_ISCSI_TASK_ST_CTX_HQ_SCANNED_DONE_SHIFT 5
1071 #define USTORM_ISCSI_TASK_ST_CTX_R2T2RECV_DONE_MASK 0x1 /* Mark HQ scanned or disabled */
1072 #define USTORM_ISCSI_TASK_ST_CTX_R2T2RECV_DONE_SHIFT 6
1073 #define USTORM_ISCSI_TASK_ST_CTX_RESERVED0_MASK 0x1
1074 #define USTORM_ISCSI_TASK_ST_CTX_RESERVED0_SHIFT 7
1075 u8 cq_rss_number /* Task CQ_RSS number 0.63 */;
1079 * iscsi task context
1081 struct e4_iscsi_task_context
1083 struct ystorm_iscsi_task_st_ctx ystorm_st_context /* ystorm storm context */;
1084 struct e4_ystorm_iscsi_task_ag_ctx ystorm_ag_context /* ystorm aggregative context */;
1085 struct regpair ystorm_ag_padding[2] /* padding */;
1086 struct tdif_task_context tdif_context /* tdif context */;
1087 struct e4_mstorm_iscsi_task_ag_ctx mstorm_ag_context /* mstorm aggregative context */;
1088 struct regpair mstorm_ag_padding[2] /* padding */;
1089 struct e4_ustorm_iscsi_task_ag_ctx ustorm_ag_context /* ustorm aggregative context */;
1090 struct mstorm_iscsi_task_st_ctx mstorm_st_context /* mstorm storm context */;
1091 struct ustorm_iscsi_task_st_ctx ustorm_st_context /* ustorm storm context */;
1092 struct rdif_task_context rdif_context /* rdif context */;
1095 struct e5_ystorm_iscsi_task_ag_ctx
1097 u8 reserved /* cdu_validation */;
1098 u8 byte1 /* state_and_core_id */;
1099 __le16 word0 /* icid */;
1101 #define E5_YSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_MASK 0xF /* connection_type */
1102 #define E5_YSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_SHIFT 0
1103 #define E5_YSTORM_ISCSI_TASK_AG_CTX_BIT0_MASK 0x1 /* exist_in_qm0 */
1104 #define E5_YSTORM_ISCSI_TASK_AG_CTX_BIT0_SHIFT 4
1105 #define E5_YSTORM_ISCSI_TASK_AG_CTX_BIT1_MASK 0x1 /* exist_in_qm1 */
1106 #define E5_YSTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT 5
1107 #define E5_YSTORM_ISCSI_TASK_AG_CTX_VALID_MASK 0x1 /* bit2 */
1108 #define E5_YSTORM_ISCSI_TASK_AG_CTX_VALID_SHIFT 6
1109 #define E5_YSTORM_ISCSI_TASK_AG_CTX_BIT3_MASK 0x1 /* bit3 */
1110 #define E5_YSTORM_ISCSI_TASK_AG_CTX_BIT3_SHIFT 7
1112 #define E5_YSTORM_ISCSI_TASK_AG_CTX_CF0_MASK 0x3 /* cf0 */
1113 #define E5_YSTORM_ISCSI_TASK_AG_CTX_CF0_SHIFT 0
1114 #define E5_YSTORM_ISCSI_TASK_AG_CTX_CF1_MASK 0x3 /* cf1 */
1115 #define E5_YSTORM_ISCSI_TASK_AG_CTX_CF1_SHIFT 2
1116 #define E5_YSTORM_ISCSI_TASK_AG_CTX_CF2SPECIAL_MASK 0x3 /* cf2special */
1117 #define E5_YSTORM_ISCSI_TASK_AG_CTX_CF2SPECIAL_SHIFT 4
1118 #define E5_YSTORM_ISCSI_TASK_AG_CTX_CF0EN_MASK 0x1 /* cf0en */
1119 #define E5_YSTORM_ISCSI_TASK_AG_CTX_CF0EN_SHIFT 6
1120 #define E5_YSTORM_ISCSI_TASK_AG_CTX_CF1EN_MASK 0x1 /* cf1en */
1121 #define E5_YSTORM_ISCSI_TASK_AG_CTX_CF1EN_SHIFT 7
1123 #define E5_YSTORM_ISCSI_TASK_AG_CTX_BIT4_MASK 0x1 /* bit4 */
1124 #define E5_YSTORM_ISCSI_TASK_AG_CTX_BIT4_SHIFT 0
1125 #define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE0EN_MASK 0x1 /* rule0en */
1126 #define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE0EN_SHIFT 1
1127 #define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1 /* rule1en */
1128 #define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 2
1129 #define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE2EN_MASK 0x1 /* rule2en */
1130 #define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE2EN_SHIFT 3
1131 #define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1 /* rule3en */
1132 #define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 4
1133 #define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1 /* rule4en */
1134 #define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 5
1135 #define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1 /* rule5en */
1136 #define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 6
1137 #define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE6EN_MASK 0x1 /* rule6en */
1138 #define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE6EN_SHIFT 7
1140 #define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED1_MASK 0x1 /* bit5 */
1141 #define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED1_SHIFT 0
1142 #define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED2_MASK 0x3 /* cf3 */
1143 #define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED2_SHIFT 1
1144 #define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED3_MASK 0x3 /* cf4 */
1145 #define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED3_SHIFT 3
1146 #define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED4_MASK 0x1 /* cf3en */
1147 #define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED4_SHIFT 5
1148 #define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED5_MASK 0x1 /* cf4en */
1149 #define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED5_SHIFT 6
1150 #define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED6_MASK 0x1 /* rule7en */
1151 #define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED6_SHIFT 7
1152 __le32 TTT /* reg0 */;
1153 u8 byte2 /* byte2 */;
1154 u8 byte3 /* byte3 */;
1155 u8 byte4 /* byte4 */;
1156 u8 e4_reserved7 /* byte5 */;
1159 struct e5_mstorm_iscsi_task_ag_ctx
1161 u8 cdu_validation /* cdu_validation */;
1162 u8 byte1 /* state_and_core_id */;
1163 __le16 task_cid /* icid */;
1165 #define E5_MSTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_MASK 0xF /* connection_type */
1166 #define E5_MSTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_SHIFT 0
1167 #define E5_MSTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_MASK 0x1 /* exist_in_qm0 */
1168 #define E5_MSTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_SHIFT 4
1169 #define E5_MSTORM_ISCSI_TASK_AG_CTX_BIT1_MASK 0x1 /* exist_in_qm1 */
1170 #define E5_MSTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT 5
1171 #define E5_MSTORM_ISCSI_TASK_AG_CTX_VALID_MASK 0x1 /* bit2 */
1172 #define E5_MSTORM_ISCSI_TASK_AG_CTX_VALID_SHIFT 6
1173 #define E5_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_FLAG_MASK 0x1 /* bit3 */
1174 #define E5_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_FLAG_SHIFT 7
1176 #define E5_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_MASK 0x3 /* cf0 */
1177 #define E5_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_SHIFT 0
1178 #define E5_MSTORM_ISCSI_TASK_AG_CTX_CF1_MASK 0x3 /* cf1 */
1179 #define E5_MSTORM_ISCSI_TASK_AG_CTX_CF1_SHIFT 2
1180 #define E5_MSTORM_ISCSI_TASK_AG_CTX_CF2_MASK 0x3 /* cf2 */
1181 #define E5_MSTORM_ISCSI_TASK_AG_CTX_CF2_SHIFT 4
1182 #define E5_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_EN_MASK 0x1 /* cf0en */
1183 #define E5_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_EN_SHIFT 6
1184 #define E5_MSTORM_ISCSI_TASK_AG_CTX_CF1EN_MASK 0x1 /* cf1en */
1185 #define E5_MSTORM_ISCSI_TASK_AG_CTX_CF1EN_SHIFT 7
1187 #define E5_MSTORM_ISCSI_TASK_AG_CTX_CF2EN_MASK 0x1 /* cf2en */
1188 #define E5_MSTORM_ISCSI_TASK_AG_CTX_CF2EN_SHIFT 0
1189 #define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE0EN_MASK 0x1 /* rule0en */
1190 #define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE0EN_SHIFT 1
1191 #define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1 /* rule1en */
1192 #define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 2
1193 #define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE2EN_MASK 0x1 /* rule2en */
1194 #define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE2EN_SHIFT 3
1195 #define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1 /* rule3en */
1196 #define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 4
1197 #define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1 /* rule4en */
1198 #define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 5
1199 #define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1 /* rule5en */
1200 #define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 6
1201 #define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE6EN_MASK 0x1 /* rule6en */
1202 #define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE6EN_SHIFT 7
1204 #define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED1_MASK 0x1 /* bit4 */
1205 #define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED1_SHIFT 0
1206 #define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED2_MASK 0x3 /* cf3 */
1207 #define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED2_SHIFT 1
1208 #define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED3_MASK 0x3 /* cf4 */
1209 #define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED3_SHIFT 3
1210 #define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED4_MASK 0x1 /* cf3en */
1211 #define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED4_SHIFT 5
1212 #define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED5_MASK 0x1 /* cf4en */
1213 #define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED5_SHIFT 6
1214 #define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED6_MASK 0x1 /* rule7en */
1215 #define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED6_SHIFT 7
1216 __le32 reg0 /* reg0 */;
1217 u8 byte2 /* byte2 */;
1218 u8 byte3 /* byte3 */;
1219 u8 byte4 /* byte4 */;
1220 u8 e4_reserved7 /* byte5 */;
1223 struct e5_ustorm_iscsi_task_ag_ctx
1225 u8 reserved /* cdu_validation */;
1226 u8 state_and_core_id /* state_and_core_id */;
1227 __le16 icid /* icid */;
1229 #define E5_USTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_MASK 0xF /* connection_type */
1230 #define E5_USTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_SHIFT 0
1231 #define E5_USTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_MASK 0x1 /* exist_in_qm0 */
1232 #define E5_USTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_SHIFT 4
1233 #define E5_USTORM_ISCSI_TASK_AG_CTX_BIT1_MASK 0x1 /* exist_in_qm1 */
1234 #define E5_USTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT 5
1235 #define E5_USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_MASK 0x3 /* timer0cf */
1236 #define E5_USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_SHIFT 6
1238 #define E5_USTORM_ISCSI_TASK_AG_CTX_RESERVED1_MASK 0x3 /* timer1cf */
1239 #define E5_USTORM_ISCSI_TASK_AG_CTX_RESERVED1_SHIFT 0
1240 #define E5_USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_MASK 0x3 /* timer2cf */
1241 #define E5_USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_SHIFT 2
1242 #define E5_USTORM_ISCSI_TASK_AG_CTX_CF3_MASK 0x3 /* timer_stop_all */
1243 #define E5_USTORM_ISCSI_TASK_AG_CTX_CF3_SHIFT 4
1244 #define E5_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_MASK 0x3 /* dif_error_cf */
1245 #define E5_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_SHIFT 6
1247 #define E5_USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_EN_MASK 0x1 /* cf0en */
1248 #define E5_USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_EN_SHIFT 0
1249 #define E5_USTORM_ISCSI_TASK_AG_CTX_DISABLE_DATA_ACKED_MASK 0x1 /* cf1en */
1250 #define E5_USTORM_ISCSI_TASK_AG_CTX_DISABLE_DATA_ACKED_SHIFT 1
1251 #define E5_USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_EN_MASK 0x1 /* cf2en */
1252 #define E5_USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_EN_SHIFT 2
1253 #define E5_USTORM_ISCSI_TASK_AG_CTX_CF3EN_MASK 0x1 /* cf3en */
1254 #define E5_USTORM_ISCSI_TASK_AG_CTX_CF3EN_SHIFT 3
1255 #define E5_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_EN_MASK 0x1 /* cf4en */
1256 #define E5_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_EN_SHIFT 4
1257 #define E5_USTORM_ISCSI_TASK_AG_CTX_CMP_DATA_TOTAL_EXP_EN_MASK 0x1 /* rule0en */
1258 #define E5_USTORM_ISCSI_TASK_AG_CTX_CMP_DATA_TOTAL_EXP_EN_SHIFT 5
1259 #define E5_USTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1 /* rule1en */
1260 #define E5_USTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 6
1261 #define E5_USTORM_ISCSI_TASK_AG_CTX_CMP_CONT_RCV_EXP_EN_MASK 0x1 /* rule2en */
1262 #define E5_USTORM_ISCSI_TASK_AG_CTX_CMP_CONT_RCV_EXP_EN_SHIFT 7
1264 #define E5_USTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1 /* rule3en */
1265 #define E5_USTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 0
1266 #define E5_USTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1 /* rule4en */
1267 #define E5_USTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 1
1268 #define E5_USTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1 /* rule5en */
1269 #define E5_USTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 2
1270 #define E5_USTORM_ISCSI_TASK_AG_CTX_RULE6EN_MASK 0x1 /* rule6en */
1271 #define E5_USTORM_ISCSI_TASK_AG_CTX_RULE6EN_SHIFT 3
1272 #define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED1_MASK 0x1 /* bit2 */
1273 #define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED1_SHIFT 4
1274 #define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED2_MASK 0x1 /* bit3 */
1275 #define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED2_SHIFT 5
1276 #define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED3_MASK 0x1 /* bit4 */
1277 #define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED3_SHIFT 6
1278 #define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED4_MASK 0x1 /* rule7en */
1279 #define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED4_SHIFT 7
1281 #define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED5_MASK 0x3 /* cf5 */
1282 #define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED5_SHIFT 0
1283 #define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED6_MASK 0x1 /* cf5en */
1284 #define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED6_SHIFT 2
1285 #define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED7_MASK 0x1 /* rule8en */
1286 #define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED7_SHIFT 3
1287 #define E5_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_TYPE_MASK 0xF /* dif_error_type */
1288 #define E5_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_TYPE_SHIFT 4
1289 u8 next_tid_valid /* byte2 */;
1290 u8 byte3 /* byte3 */;
1291 u8 e4_reserved8 /* byte4 */;
1292 __le32 dif_err_intervals /* dif_err_intervals */;
1293 __le32 dif_error_1st_interval /* dif_error_1st_interval */;
1294 __le32 rcv_cont_len /* reg2 */;
1295 __le32 exp_cont_len /* reg3 */;
1296 __le32 total_data_acked /* reg4 */;
1297 __le32 exp_data_acked /* reg5 */;
1298 __le16 word1 /* word1 */;
1299 __le16 next_tid /* word2 */;
1300 __le32 hdr_residual_count /* reg6 */;
1301 __le32 exp_r2t_sn /* reg7 */;
1305 * iscsi task context
1307 struct e5_iscsi_task_context
1309 struct ystorm_iscsi_task_st_ctx ystorm_st_context /* ystorm storm context */;
1310 struct e5_ystorm_iscsi_task_ag_ctx ystorm_ag_context /* ystorm aggregative context */;
1311 struct regpair ystorm_ag_padding[2] /* padding */;
1312 struct tdif_task_context tdif_context /* tdif context */;
1313 struct e5_mstorm_iscsi_task_ag_ctx mstorm_ag_context /* mstorm aggregative context */;
1314 struct regpair mstorm_ag_padding[2] /* padding */;
1315 struct e5_ustorm_iscsi_task_ag_ctx ustorm_ag_context /* ustorm aggregative context */;
1316 struct mstorm_iscsi_task_st_ctx mstorm_st_context /* mstorm storm context */;
1317 struct ustorm_iscsi_task_st_ctx ustorm_st_context /* ustorm storm context */;
1318 struct rdif_task_context rdif_context /* rdif context */;
1322 * ISCSI connection offload params passed by driver to FW in ISCSI offload ramrod
1324 struct iscsi_conn_offload_params
1326 struct regpair sq_pbl_addr /* PBL SQ pointer */;
1327 struct regpair r2tq_pbl_addr /* PBL R2TQ pointer */;
1328 struct regpair xhq_pbl_addr /* PBL XHQ pointer */;
1329 struct regpair uhq_pbl_addr /* PBL UHQ pointer */;
1330 __le32 initial_ack /* Initial ack, received from TCP */;
1331 __le16 physical_q0 /* Physical QM queue to be tied to logical Q0 */;
1332 __le16 physical_q1 /* Physical QM queue to be tied to logical Q1 */;
1334 #define ISCSI_CONN_OFFLOAD_PARAMS_TCP_ON_CHIP_1B_MASK 0x1 /* TCP connect/terminate option. 0 - TCP on host (option-1); 1 - TCP on chip (option-2). */
1335 #define ISCSI_CONN_OFFLOAD_PARAMS_TCP_ON_CHIP_1B_SHIFT 0
1336 #define ISCSI_CONN_OFFLOAD_PARAMS_TARGET_MODE_MASK 0x1 /* iSCSI connect mode: 0-iSCSI Initiator, 1-iSCSI Target */
1337 #define ISCSI_CONN_OFFLOAD_PARAMS_TARGET_MODE_SHIFT 1
1338 #define ISCSI_CONN_OFFLOAD_PARAMS_RESTRICTED_MODE_MASK 0x1 /* Restricted mode: 0 - un-restricted (deviating from the RFC), 1 - restricted (according to the RFC) */
1339 #define ISCSI_CONN_OFFLOAD_PARAMS_RESTRICTED_MODE_SHIFT 2
1340 #define ISCSI_CONN_OFFLOAD_PARAMS_RESERVED1_MASK 0x1F /* reserved */
1341 #define ISCSI_CONN_OFFLOAD_PARAMS_RESERVED1_SHIFT 3
1342 u8 pbl_page_size_log /* Page size with PBEs log; Page Size = 2^(page_size_log+12) */;
1343 u8 pbe_page_size_log /* PBE page size with log; Page Size = 2^(page_size_log+12) */;
1344 u8 default_cq /* Default CQ used to write unsolicited data */;
1345 __le32 stat_sn /* StatSn for Target Mode only: the first Login Response StatSn value for Target mode */;
1349 * iSCSI connection statistics
1351 struct iscsi_conn_stats_params
1353 struct regpair iscsi_tcp_tx_packets_cnt /* Counts number of transmitted TCP packets for this iSCSI connection */;
1354 struct regpair iscsi_tcp_tx_bytes_cnt /* Counts number of transmitted TCP bytes for this iSCSI connection */;
1355 struct regpair iscsi_tcp_tx_rxmit_cnt /* Counts number of TCP retransmission events for this iSCSI connection */;
1356 struct regpair iscsi_tcp_rx_packets_cnt /* Counts number of received TCP packets for this iSCSI connection */;
1357 struct regpair iscsi_tcp_rx_bytes_cnt /* Counts number of received TCP bytes for this iSCSI connection */;
1358 struct regpair iscsi_tcp_rx_dup_ack_cnt /* Counts number of received TCP duplicate acks for this iSCSI connection */;
1359 __le32 iscsi_tcp_rx_chksum_err_cnt /* Counts number of received TCP packets with checksum err for this iSCSI connection */;
1364 * spe message header
1366 struct iscsi_slow_path_hdr
1368 u8 op_code /* iscsi bus-drv message opcode */;
1370 #define ISCSI_SLOW_PATH_HDR_RESERVED0_MASK 0xF
1371 #define ISCSI_SLOW_PATH_HDR_RESERVED0_SHIFT 0
1372 #define ISCSI_SLOW_PATH_HDR_LAYER_CODE_MASK 0x7 /* protocol layer (L2,L3,L4,L5) */
1373 #define ISCSI_SLOW_PATH_HDR_LAYER_CODE_SHIFT 4
1374 #define ISCSI_SLOW_PATH_HDR_RESERVED1_MASK 0x1
1375 #define ISCSI_SLOW_PATH_HDR_RESERVED1_SHIFT 7
1379 * ISCSI connection update params passed by driver to FW in ISCSI update ramrod
1381 struct iscsi_conn_update_ramrod_params
1383 struct iscsi_slow_path_hdr hdr /* spe message header. */;
1384 __le16 conn_id /* ISCSI Connection ID. (MOTI_COHEN : draft for DrvSim sake) */;
1385 __le32 fw_cid /* Context ID (cid) of the connection. (MOTI_COHEN : draft for DrvSim sake) */;
1387 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_HD_EN_MASK 0x1 /* Is header digest enabled */
1388 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_HD_EN_SHIFT 0
1389 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DD_EN_MASK 0x1 /* Is data digest enabled */
1390 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DD_EN_SHIFT 1
1391 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_INITIAL_R2T_MASK 0x1 /* Initial R2T */
1392 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_INITIAL_R2T_SHIFT 2
1393 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_IMMEDIATE_DATA_MASK 0x1 /* Immediate data */
1394 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_IMMEDIATE_DATA_SHIFT 3
1395 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DIF_BLOCK_SIZE_MASK 0x1 /* 0 - 512B, 1 - 4K */
1396 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DIF_BLOCK_SIZE_SHIFT 4
1397 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DIF_ON_HOST_EN_MASK 0x1 /* 0 - no DIF, 1 - could be enabled per task */
1398 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DIF_ON_HOST_EN_SHIFT 5
1399 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DIF_ON_IMM_EN_MASK 0x1 /* Support DIF on immediate, 1-Yes, 0-No */
1400 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DIF_ON_IMM_EN_SHIFT 6
1401 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_LUN_MAPPER_EN_MASK 0x1 /* valid only if dif_on_imm_en=1 Does this connection has dif configuration per Lun or Default dif configuration */
1402 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_LUN_MAPPER_EN_SHIFT 7
1404 __le32 max_seq_size /* Maximum sequence size. Valid for TX and RX */;
1405 __le32 max_send_pdu_length /* Maximum PDU size. Valid for the TX */;
1406 __le32 max_recv_pdu_length /* Maximum PDU size. Valid for the RX */;
1407 __le32 first_seq_length /* Initial sequence length */;
1408 __le32 exp_stat_sn /* ExpStatSn - Option1 Only */;
1409 union dif_configuration_params dif_on_imme_params /* dif on immmediate params - Target mode Only */;
1415 struct iscsi_cqe_common
1417 __le16 conn_id /* Drivers connection Id */;
1418 u8 cqe_type /* Indicates CQE type (use enum iscsi_cqes_type) */;
1419 union cqe_error_status error_bitmap /* CQE error status */;
1421 union iscsi_task_hdr iscsi_hdr /* iscsi header union */;
1427 struct iscsi_cqe_solicited
1429 __le16 conn_id /* Drivers connection Id */;
1430 u8 cqe_type /* Indicates CQE type (use enum iscsi_cqes_type) */;
1431 union cqe_error_status error_bitmap /* CQE error status */;
1432 __le16 itid /* initiator itt (Initiator mode) or target ttt (Target mode) */;
1433 u8 task_type /* Task type */;
1434 u8 fw_dbg_field /* FW debug params */;
1435 u8 caused_conn_err /* Equals 1 if this TID caused the connection error, otherwise equals 0. */;
1437 __le32 data_truncated_bytes /* Target Mode only: Valid only if data_truncated_err equals 1: The remaining bytes till the end of the IO. */;
1438 union iscsi_task_hdr iscsi_hdr /* iscsi header union */;
1444 struct iscsi_cqe_unsolicited
1446 __le16 conn_id /* Drivers connection Id */;
1447 u8 cqe_type /* Indicates CQE type (use enum iscsi_cqes_type) */;
1448 union cqe_error_status error_bitmap /* CQE error status */;
1449 __le16 reserved0 /* Reserved */;
1450 u8 reserved1 /* Reserved */;
1451 u8 unsol_cqe_type /* Represent this unsolicited CQE position in a sequence of packets belonging to the same unsolicited PDU (use enum iscsi_cqe_unsolicited_type) */;
1452 __le16 rqe_opaque /* Relevant for Unsolicited CQE only: The opaque data of RQ BDQ */;
1453 __le16 reserved2[3] /* Reserved */;
1454 union iscsi_task_hdr iscsi_hdr /* iscsi header union */;
1462 struct iscsi_cqe_common cqe_common /* Common CQE */;
1463 struct iscsi_cqe_solicited cqe_solicited /* Solicited CQE */;
1464 struct iscsi_cqe_unsolicited cqe_unsolicited /* Unsolicited CQE. relevant only when cqe_opcode == ISCSI_CQE_TYPE_UNSOLICITED */;
1470 enum iscsi_cqes_type
1472 ISCSI_CQE_TYPE_SOLICITED=1 /* iSCSI CQE with solicited data */,
1473 ISCSI_CQE_TYPE_UNSOLICITED /* iSCSI CQE with unsolicited data */,
1474 ISCSI_CQE_TYPE_SOLICITED_WITH_SENSE /* iSCSI CQE with solicited with sense data */,
1475 ISCSI_CQE_TYPE_TASK_CLEANUP /* iSCSI CQE task cleanup */,
1476 ISCSI_CQE_TYPE_DUMMY /* iSCSI Dummy CQE */,
1483 enum iscsi_cqe_unsolicited_type
1485 ISCSI_CQE_UNSOLICITED_NONE /* iSCSI CQE with unsolicited data */,
1486 ISCSI_CQE_UNSOLICITED_SINGLE /* iSCSI CQE with unsolicited data */,
1487 ISCSI_CQE_UNSOLICITED_FIRST /* iSCSI CQE with unsolicited data */,
1488 ISCSI_CQE_UNSOLICITED_MIDDLE /* iSCSI CQE with unsolicited data */,
1489 ISCSI_CQE_UNSOLICITED_LAST /* iSCSI CQE with unsolicited data */,
1490 MAX_ISCSI_CQE_UNSOLICITED_TYPE
1496 struct iscsi_debug_modes
1499 #define ISCSI_DEBUG_MODES_ASSERT_IF_RX_CONN_ERROR_MASK 0x1 /* Assert on Rx connection error */
1500 #define ISCSI_DEBUG_MODES_ASSERT_IF_RX_CONN_ERROR_SHIFT 0
1501 #define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_RESET_MASK 0x1 /* Assert if TCP RESET arrived */
1502 #define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_RESET_SHIFT 1
1503 #define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_FIN_MASK 0x1 /* Assert if TCP FIN arrived */
1504 #define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_FIN_SHIFT 2
1505 #define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_CLEANUP_MASK 0x1 /* Assert if cleanup flow */
1506 #define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_CLEANUP_SHIFT 3
1507 #define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_REJECT_OR_ASYNC_MASK 0x1 /* Assert if REJECT PDU or ASYNC PDU arrived */
1508 #define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_REJECT_OR_ASYNC_SHIFT 4
1509 #define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_NOP_MASK 0x1 /* Assert if NOP IN PDU or NOP OUT PDU arrived */
1510 #define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_NOP_SHIFT 5
1511 #define ISCSI_DEBUG_MODES_ASSERT_IF_DIF_OR_DATA_DIGEST_ERROR_MASK 0x1 /* Assert if DIF or data digest error */
1512 #define ISCSI_DEBUG_MODES_ASSERT_IF_DIF_OR_DATA_DIGEST_ERROR_SHIFT 6
1513 #define ISCSI_DEBUG_MODES_ASSERT_IF_HQ_CORRUPT_MASK 0x1 /* Assert if HQ corruption detected */
1514 #define ISCSI_DEBUG_MODES_ASSERT_IF_HQ_CORRUPT_SHIFT 7
1518 * iSCSI kernel completion queue IDs
1520 enum iscsi_eqe_opcode
1522 ISCSI_EVENT_TYPE_INIT_FUNC=0 /* iSCSI response after init Ramrod */,
1523 ISCSI_EVENT_TYPE_DESTROY_FUNC /* iSCSI response after destroy Ramrod */,
1524 ISCSI_EVENT_TYPE_OFFLOAD_CONN /* iSCSI response after option 2 offload Ramrod */,
1525 ISCSI_EVENT_TYPE_UPDATE_CONN /* iSCSI response after update Ramrod */,
1526 ISCSI_EVENT_TYPE_CLEAR_SQ /* iSCSI response after clear sq Ramrod */,
1527 ISCSI_EVENT_TYPE_TERMINATE_CONN /* iSCSI response after termination Ramrod */,
1528 ISCSI_EVENT_TYPE_MAC_UPDATE_CONN /* iSCSI response after MAC address update Ramrod */,
1529 ISCSI_EVENT_TYPE_COLLECT_STATS_CONN /* iSCSI response after collecting connection statistics Ramrod */,
1530 ISCSI_EVENT_TYPE_ASYN_CONNECT_COMPLETE /* iSCSI response after option 2 connect completed (A-syn EQE) */,
1531 ISCSI_EVENT_TYPE_ASYN_TERMINATE_DONE /* iSCSI response after option 2 termination completed (A-syn EQE) */,
1532 ISCSI_EVENT_TYPE_START_OF_ERROR_TYPES=10 /* Never returned in EQE, used to separate Regular event types from Error event types */,
1533 ISCSI_EVENT_TYPE_ASYN_ABORT_RCVD /* iSCSI abort response after TCP RST packet recieve (A-syn EQE) */,
1534 ISCSI_EVENT_TYPE_ASYN_CLOSE_RCVD /* iSCSI response after close receive (A-syn EQE) */,
1535 ISCSI_EVENT_TYPE_ASYN_SYN_RCVD /* iSCSI response after TCP SYN+ACK packet receive (A-syn EQE) */,
1536 ISCSI_EVENT_TYPE_ASYN_MAX_RT_TIME /* iSCSI error - tcp max retransmit time (A-syn EQE) */,
1537 ISCSI_EVENT_TYPE_ASYN_MAX_RT_CNT /* iSCSI error - tcp max retransmit count (A-syn EQE) */,
1538 ISCSI_EVENT_TYPE_ASYN_MAX_KA_PROBES_CNT /* iSCSI error - tcp ka probes count (A-syn EQE) */,
1539 ISCSI_EVENT_TYPE_ASYN_FIN_WAIT2 /* iSCSI error - tcp fin wait 2 (A-syn EQE) */,
1540 ISCSI_EVENT_TYPE_ISCSI_CONN_ERROR /* iSCSI error response (A-syn EQE) */,
1541 ISCSI_EVENT_TYPE_TCP_CONN_ERROR /* iSCSI error - tcp error (A-syn EQE) */,
1542 MAX_ISCSI_EQE_OPCODE
1546 * iSCSI EQE and CQE completion status
1548 enum iscsi_error_types
1550 ISCSI_STATUS_NONE=0,
1551 ISCSI_CQE_ERROR_UNSOLICITED_RCV_ON_INVALID_CONN=1,
1552 ISCSI_CONN_ERROR_TASK_CID_MISMATCH /* iSCSI connection error - Corrupted Task context */,
1553 ISCSI_CONN_ERROR_TASK_NOT_VALID /* iSCSI connection error - The task is not valid */,
1554 ISCSI_CONN_ERROR_RQ_RING_IS_FULL /* iSCSI connection error - RQ full */,
1555 ISCSI_CONN_ERROR_CMDQ_RING_IS_FULL /* iSCSI connection error - CMDQ full (Target only) */,
1556 ISCSI_CONN_ERROR_HQE_CACHING_FAILED /* iSCSI connection error - HQ error */,
1557 ISCSI_CONN_ERROR_HEADER_DIGEST_ERROR /* iSCSI connection error - Header digest error */,
1558 ISCSI_CONN_ERROR_LOCAL_COMPLETION_ERROR /* iSCSI connection error - Local completion bit is not correct (A-syn EQE) */,
1559 ISCSI_CONN_ERROR_DATA_OVERRUN /* iSCSI connection error - data overrun */,
1560 ISCSI_CONN_ERROR_OUT_OF_SGES_ERROR /* iSCSI connection error - out of sges in task context */,
1561 ISCSI_CONN_ERROR_IP_OPTIONS_ERROR /* TCP connection error - IP option error */,
1562 ISCSI_CONN_ERROR_PRS_ERRORS /* TCP connection error - error indication form parser */,
1563 ISCSI_CONN_ERROR_CONNECT_INVALID_TCP_OPTION /* TCP connection error - tcp options error(option 2 only) */,
1564 ISCSI_CONN_ERROR_TCP_IP_FRAGMENT_ERROR /* TCP connection error - IP fragmentation error */,
1565 ISCSI_CONN_ERROR_PROTOCOL_ERR_AHS_LEN /* iSCSI connection error - invalid AHS length (Target only) */,
1566 ISCSI_CONN_ERROR_PROTOCOL_ERR_AHS_TYPE /* iSCSI connection error - invalid AHS type (Target only) */,
1567 ISCSI_CONN_ERROR_PROTOCOL_ERR_ITT_OUT_OF_RANGE /* iSCSI connection error - invalid ITT */,
1568 ISCSI_CONN_ERROR_PROTOCOL_ERR_TTT_OUT_OF_RANGE /* iSCSI connection error - invalid TTT (Target only) */,
1569 ISCSI_CONN_ERROR_PROTOCOL_ERR_DATA_SEG_LEN_EXCEEDS_PDU_SIZE /* iSCSI connection error - PDU data_seg_len > max receive pdu size */,
1570 ISCSI_CONN_ERROR_PROTOCOL_ERR_INVALID_OPCODE /* iSCSI connection error - invalid PDU opcode */,
1571 ISCSI_CONN_ERROR_PROTOCOL_ERR_INVALID_OPCODE_BEFORE_UPDATE /* iSCSI connection error - invalid PDU opcode before update ramrod (Option 2 only) */,
1572 ISCSI_CONN_ERROR_UNVALID_NOPIN_DSL /* iSCSI connection error - NOPIN dsl > 0 and ITT = 0xffffffff (Initiator only) */,
1573 ISCSI_CONN_ERROR_PROTOCOL_ERR_R2T_CARRIES_NO_DATA /* iSCSI connection error - R2T dsl > 0 (Initiator only) */,
1574 ISCSI_CONN_ERROR_PROTOCOL_ERR_DATA_SN /* iSCSI connection error - DATA-SN error */,
1575 ISCSI_CONN_ERROR_PROTOCOL_ERR_DATA_IN_TTT /* iSCSI connection error - DATA-IN TTT error (Initiator only) */,
1576 ISCSI_CONN_ERROR_PROTOCOL_ERR_DATA_OUT_ITT /* iSCSI connection error - DATA-OUT ITT error (Target only) */,
1577 ISCSI_CONN_ERROR_PROTOCOL_ERR_R2T_TTT /* iSCSI connection error - R2T TTT error (Initiator only) */,
1578 ISCSI_CONN_ERROR_PROTOCOL_ERR_R2T_BUFFER_OFFSET /* iSCSI connection error - R2T buffer offset error (Initiator only) */,
1579 ISCSI_CONN_ERROR_PROTOCOL_ERR_BUFFER_OFFSET_OOO /* iSCSI connection error - DATA PDU buffer offset error */,
1580 ISCSI_CONN_ERROR_PROTOCOL_ERR_R2T_SN /* iSCSI connection error - R2T SN error (Initiator only) */,
1581 ISCSI_CONN_ERROR_PROTOCOL_ERR_DESIRED_DATA_TRNS_LEN_0 /* iSCSI connection error - R2T desired data transfer length = 0 (Initiator only) */,
1582 ISCSI_CONN_ERROR_PROTOCOL_ERR_DESIRED_DATA_TRNS_LEN_1 /* iSCSI connection error - R2T desired data transfer length less then max burst size (Initiator only) */,
1583 ISCSI_CONN_ERROR_PROTOCOL_ERR_DESIRED_DATA_TRNS_LEN_2 /* iSCSI connection error - R2T desired data transfer length + buffer offset > task size (Initiator only) */,
1584 ISCSI_CONN_ERROR_PROTOCOL_ERR_LUN /* iSCSI connection error - R2T unvalid LUN (Initiator only) */,
1585 ISCSI_CONN_ERROR_PROTOCOL_ERR_F_BIT_ZERO /* iSCSI connection error - All data has been already received, however it is not the end of sequence (Initiator only) */,
1586 ISCSI_CONN_ERROR_PROTOCOL_ERR_F_BIT_ZERO_S_BIT_ONE /* iSCSI connection error - S-bit and final bit = 1 (Initiator only) */,
1587 ISCSI_CONN_ERROR_PROTOCOL_ERR_EXP_STAT_SN /* iSCSI connection error - STAT SN error (Initiator only) */,
1588 ISCSI_CONN_ERROR_PROTOCOL_ERR_DSL_NOT_ZERO /* iSCSI connection error - TMF or LOGOUT PDUs dsl > 0 (Initiator only) */,
1589 ISCSI_CONN_ERROR_PROTOCOL_ERR_INVALID_DSL /* iSCSI connection error - CMD PDU dsl>0 while immediate data is disabled (Target only) */,
1590 ISCSI_CONN_ERROR_PROTOCOL_ERR_DATA_SEG_LEN_TOO_BIG /* iSCSI connection error - Data In overrun (Initiator only) */,
1591 ISCSI_CONN_ERROR_PROTOCOL_ERR_OUTSTANDING_R2T_COUNT /* iSCSI connection error - >1 outstanding R2T (Initiator only) */,
1592 ISCSI_CONN_ERROR_PROTOCOL_ERR_DIF_TX /* iSCSI connection error - DIF Tx error + DIF error drop is enabled (Target only) */,
1593 ISCSI_CONN_ERROR_SENSE_DATA_LENGTH /* iSCSI connection error - Sense data length > 256 (Initiator only) */,
1594 ISCSI_CONN_ERROR_DATA_PLACEMENT_ERROR /* iSCSI connection error - Data placement error */,
1595 ISCSI_CONN_ERROR_INVALID_ITT /* iSCSI connection error - Invalid ITT (Target Only) */,
1596 ISCSI_ERROR_UNKNOWN /* iSCSI connection error */,
1597 MAX_ISCSI_ERROR_TYPES
1601 * iSCSI Ramrod Command IDs
1603 enum iscsi_ramrod_cmd_id
1605 ISCSI_RAMROD_CMD_ID_UNUSED=0,
1606 ISCSI_RAMROD_CMD_ID_INIT_FUNC=1 /* iSCSI function init Ramrod */,
1607 ISCSI_RAMROD_CMD_ID_DESTROY_FUNC=2 /* iSCSI function destroy Ramrod */,
1608 ISCSI_RAMROD_CMD_ID_OFFLOAD_CONN=3 /* iSCSI connection offload Ramrod */,
1609 ISCSI_RAMROD_CMD_ID_UPDATE_CONN=4 /* iSCSI connection update Ramrod */,
1610 ISCSI_RAMROD_CMD_ID_TERMINATION_CONN=5 /* iSCSI connection offload Ramrod. Command ID known only to FW and VBD */,
1611 ISCSI_RAMROD_CMD_ID_CLEAR_SQ=6 /* iSCSI connection clear-sq ramrod. */,
1612 ISCSI_RAMROD_CMD_ID_MAC_UPDATE=7 /* iSCSI connection update MAC address ramrod. */,
1613 ISCSI_RAMROD_CMD_ID_CONN_STATS=8 /* iSCSI collect connection statistics ramrod. */,
1614 MAX_ISCSI_RAMROD_CMD_ID
1618 * ISCSI connection termination request
1620 struct iscsi_spe_conn_mac_update
1622 struct iscsi_slow_path_hdr hdr /* spe message header. */;
1623 __le16 conn_id /* ISCSI Connection ID. */;
1624 __le32 fw_cid /* Context ID (cid) of the connection. */;
1625 __le16 remote_mac_addr_lo /* new remote mac address lo */;
1626 __le16 remote_mac_addr_mid /* new remote mac address mid */;
1627 __le16 remote_mac_addr_hi /* new remote mac address hi */;
1632 * ISCSI and TCP connection(Option 1) offload params passed by driver to FW in ISCSI offload ramrod
1634 struct iscsi_spe_conn_offload
1636 struct iscsi_slow_path_hdr hdr /* spe message header. */;
1637 __le16 conn_id /* ISCSI Connection ID. */;
1639 struct iscsi_conn_offload_params iscsi /* iSCSI session offload params */;
1640 struct tcp_offload_params tcp /* iSCSI session offload params */;
1644 * ISCSI and TCP connection(Option 2) offload params passed by driver to FW in ISCSI offload ramrod
1646 struct iscsi_spe_conn_offload_option2
1648 struct iscsi_slow_path_hdr hdr /* spe message header. */;
1649 __le16 conn_id /* ISCSI Connection ID. */;
1651 struct iscsi_conn_offload_params iscsi /* iSCSI session offload params */;
1652 struct tcp_offload_params_opt2 tcp /* iSCSI session offload params */;
1656 * ISCSI collect connection statistics request
1658 struct iscsi_spe_conn_statistics
1660 struct iscsi_slow_path_hdr hdr /* spe message header. */;
1661 __le16 conn_id /* ISCSI Connection ID. */;
1662 __le32 fw_cid /* Context ID (cid) of the connection. */;
1663 u8 reset_stats /* Indicates whether to reset the connection statistics. */;
1665 struct regpair stats_cnts_addr /* cmdq and unsolicited counters termination params */;
1669 * ISCSI connection termination request
1671 struct iscsi_spe_conn_termination
1673 struct iscsi_slow_path_hdr hdr /* spe message header. */;
1674 __le16 conn_id /* ISCSI Connection ID. */;
1675 __le32 fw_cid /* Context ID (cid) of the connection. */;
1676 u8 abortive /* Mark termination as abort(reset) flow */;
1678 struct regpair queue_cnts_addr /* cmdq and unsolicited counters termination params */;
1679 struct regpair query_params_addr /* query_params_ptr */;
1683 * iSCSI firmware function destroy parameters
1685 struct iscsi_spe_func_dstry
1687 struct iscsi_slow_path_hdr hdr /* spe message header. */;
1693 * iSCSI firmware function init parameters
1695 struct iscsi_spe_func_init
1697 struct iscsi_slow_path_hdr hdr /* spe message header. */;
1698 __le16 half_way_close_timeout /* Half Way Close Timeout in Option 2 Close */;
1699 u8 num_sq_pages_in_ring /* Number of entries in the SQ PBL. Provided by driver at function init spe */;
1700 u8 num_r2tq_pages_in_ring /* Number of entries in the R2TQ PBL. Provided by driver at function init spe */;
1701 u8 num_uhq_pages_in_ring /* Number of entries in the uHQ PBL (xHQ entries is X2). Provided by driver at function init spe */;
1702 u8 ll2_rx_queue_id /* Queue ID of the Light-L2 Rx Queue */;
1704 #define ISCSI_SPE_FUNC_INIT_COUNTERS_EN_MASK 0x1 /* Enable counters - function and connection counters */
1705 #define ISCSI_SPE_FUNC_INIT_COUNTERS_EN_SHIFT 0
1706 #define ISCSI_SPE_FUNC_INIT_RESERVED0_MASK 0x7F /* reserved */
1707 #define ISCSI_SPE_FUNC_INIT_RESERVED0_SHIFT 1
1708 struct iscsi_debug_modes debug_mode /* Use iscsi_debug_mode flags */;
1711 struct scsi_init_func_params func_params /* Common SCSI init params passed by driver to FW in function init ramrod */;
1712 struct scsi_init_func_queues q_params /* SCSI RQ/CQ firmware function init parameters */;
1718 enum iscsi_task_type
1720 ISCSI_TASK_TYPE_INITIATOR_WRITE,
1721 ISCSI_TASK_TYPE_INITIATOR_READ,
1722 ISCSI_TASK_TYPE_MIDPATH,
1723 ISCSI_TASK_TYPE_UNSOLIC,
1724 ISCSI_TASK_TYPE_EXCHCLEANUP,
1725 ISCSI_TASK_TYPE_IRRELEVANT,
1726 ISCSI_TASK_TYPE_TARGET_WRITE,
1727 ISCSI_TASK_TYPE_TARGET_READ,
1728 ISCSI_TASK_TYPE_TARGET_RESPONSE,
1729 ISCSI_TASK_TYPE_LOGIN_RESPONSE,
1730 ISCSI_TASK_TYPE_TARGET_IMM_W_DIF,
1735 * iSCSI DesiredDataTransferLength/ttt union
1737 union iscsi_ttt_txlen_union
1739 __le32 desired_tx_len /* desired data transfer length */;
1740 __le32 ttt /* target transfer tag */;
1749 #define ISCSI_UHQE_PDU_PAYLOAD_LEN_MASK 0xFFFFF /* iSCSI payload (doesnt include padding or digest) or AHS length */
1750 #define ISCSI_UHQE_PDU_PAYLOAD_LEN_SHIFT 0
1751 #define ISCSI_UHQE_LOCAL_COMP_MASK 0x1 /* local compleiton flag */
1752 #define ISCSI_UHQE_LOCAL_COMP_SHIFT 20
1753 #define ISCSI_UHQE_TOGGLE_BIT_MASK 0x1 /* toggle bit to protect from uHQ full */
1754 #define ISCSI_UHQE_TOGGLE_BIT_SHIFT 21
1755 #define ISCSI_UHQE_PURE_PAYLOAD_MASK 0x1 /* indicates whether pdu_payload_len contains pure payload length. if not, pdu_payload_len is AHS length */
1756 #define ISCSI_UHQE_PURE_PAYLOAD_SHIFT 22
1757 #define ISCSI_UHQE_LOGIN_RESPONSE_PDU_MASK 0x1 /* indicates login pdu */
1758 #define ISCSI_UHQE_LOGIN_RESPONSE_PDU_SHIFT 23
1759 #define ISCSI_UHQE_TASK_ID_HI_MASK 0xFF /* most significant byte of task_id */
1760 #define ISCSI_UHQE_TASK_ID_HI_SHIFT 24
1762 #define ISCSI_UHQE_BUFFER_OFFSET_MASK 0xFFFFFF /* absolute offset in task */
1763 #define ISCSI_UHQE_BUFFER_OFFSET_SHIFT 0
1764 #define ISCSI_UHQE_TASK_ID_LO_MASK 0xFF /* least significant byte of task_id */
1765 #define ISCSI_UHQE_TASK_ID_LO_SHIFT 24
1773 __le16 task_id /* The task identifier (itt) includes all the relevant information required for the task processing */;
1775 #define ISCSI_WQE_WQE_TYPE_MASK 0x7 /* Wqe type [use iscsi_wqe_type] */
1776 #define ISCSI_WQE_WQE_TYPE_SHIFT 0
1777 #define ISCSI_WQE_NUM_SGES_MASK 0xF /* The driver will give a hint about sizes of SGEs for better credits evaluation at Xstorm */
1778 #define ISCSI_WQE_NUM_SGES_SHIFT 3
1779 #define ISCSI_WQE_RESPONSE_MASK 0x1 /* 1 if this Wqe triggers a response and advances stat_sn, 0 otherwise */
1780 #define ISCSI_WQE_RESPONSE_SHIFT 7
1781 struct iscsi_dif_flags prot_flags /* Task data-integrity flags (protection) */;
1782 __le32 contlen_cdbsize;
1783 #define ISCSI_WQE_CONT_LEN_MASK 0xFFFFFF /* expected/desired data transfer length */
1784 #define ISCSI_WQE_CONT_LEN_SHIFT 0
1785 #define ISCSI_WQE_CDB_SIZE_MASK 0xFF /* Initiator mode only: equals SCSI command CDB size if extended CDB is used, otherwise equals zero. */
1786 #define ISCSI_WQE_CDB_SIZE_SHIFT 24
1794 ISCSI_WQE_TYPE_NORMAL /* iSCSI WQE type normal. excluding status bit in target mode. */,
1795 ISCSI_WQE_TYPE_TASK_CLEANUP /* iSCSI WQE type task cleanup */,
1796 ISCSI_WQE_TYPE_MIDDLE_PATH /* iSCSI WQE type middle path */,
1797 ISCSI_WQE_TYPE_LOGIN /* iSCSI WQE type login */,
1798 ISCSI_WQE_TYPE_FIRST_R2T_CONT /* iSCSI WQE type First Write Continuation (Target) */,
1799 ISCSI_WQE_TYPE_NONFIRST_R2T_CONT /* iSCSI WQE type Non-First Write Continuation (Target) */,
1800 ISCSI_WQE_TYPE_RESPONSE /* iSCSI WQE type SCSI response */,
1809 union iscsi_ttt_txlen_union ttt_or_txlen /* iSCSI DesiredDataTransferLength/ttt union */;
1810 __le32 exp_stat_sn /* expected StatSn */;
1811 struct iscsi_dif_flags prot_flags /* Task data-integrity flags (protection) */;
1812 u8 total_ahs_length /* Initiator mode only: Total AHS Length. greater than zero if and only if PDU is SCSI command and CDB > 16 */;
1813 u8 opcode /* Type opcode for command PDU */;
1815 #define ISCSI_XHQE_FINAL_MASK 0x1 /* The Final(F) for this PDU */
1816 #define ISCSI_XHQE_FINAL_SHIFT 0
1817 #define ISCSI_XHQE_STATUS_BIT_MASK 0x1 /* Whether this PDU is Data-In PDU with status_bit = 1 */
1818 #define ISCSI_XHQE_STATUS_BIT_SHIFT 1
1819 #define ISCSI_XHQE_NUM_SGES_MASK 0xF /* If Predicted IO equals Min(8, number of SGEs in SGL), otherwise equals 0 */
1820 #define ISCSI_XHQE_NUM_SGES_SHIFT 2
1821 #define ISCSI_XHQE_RESERVED0_MASK 0x3 /* reserved */
1822 #define ISCSI_XHQE_RESERVED0_SHIFT 6
1823 union iscsi_seq_num seq_num /* R2T/DataSN sequence number */;
1828 * Per PF iSCSI receive path statistics - mStorm RAM structure
1830 struct mstorm_iscsi_stats_drv
1832 struct regpair iscsi_rx_dropped_PDUs_task_not_valid /* Number of Rx silently dropped PDUs due to task not valid */;
1833 struct regpair iscsi_rx_dup_ack_cnt /* Received Dup-ACKs - after 3 dup ack, the counter doesnt count the same dup ack */;
1837 * Per PF iSCSI transmit path statistics - pStorm RAM structure
1839 struct pstorm_iscsi_stats_drv
1841 struct regpair iscsi_tx_bytes_cnt /* Counts the number of tx bytes that were transmitted */;
1842 struct regpair iscsi_tx_packet_cnt /* Counts the number of tx packets that were transmitted */;
1846 * Per PF iSCSI receive path statistics - tStorm RAM structure
1848 struct tstorm_iscsi_stats_drv
1850 struct regpair iscsi_rx_bytes_cnt /* Counts the number of rx bytes that were received */;
1851 struct regpair iscsi_rx_packet_cnt /* Counts the number of rx packets that were received */;
1852 struct regpair iscsi_rx_new_ooo_isle_events_cnt /* Counts the number of new out-of-order isle event */;
1853 struct regpair iscsi_rx_tcp_payload_bytes_cnt /* Received In-Order TCP Payload Bytes */;
1854 struct regpair iscsi_rx_tcp_pkt_cnt /* Received In-Order TCP Packets */;
1855 struct regpair iscsi_rx_pure_ack_cnt /* Received Pure-ACKs */;
1856 __le32 iscsi_cmdq_threshold_cnt /* Counts the number of times elements in cmdQ reached threshold */;
1857 __le32 iscsi_rq_threshold_cnt /* Counts the number of times elements in RQQ reached threshold */;
1858 __le32 iscsi_immq_threshold_cnt /* Counts the number of times elements in immQ reached threshold */;
1862 * Per PF iSCSI receive path statistics - uStorm RAM structure
1864 struct ustorm_iscsi_stats_drv
1866 struct regpair iscsi_rx_data_pdu_cnt /* Number of data PDUs that were received */;
1867 struct regpair iscsi_rx_r2t_pdu_cnt /* Number of R2T PDUs that were received */;
1868 struct regpair iscsi_rx_total_pdu_cnt /* Number of total PDUs that were received */;
1872 * Per PF iSCSI transmit path statistics - xStorm RAM structure
1874 struct xstorm_iscsi_stats_drv
1876 struct regpair iscsi_tx_go_to_slow_start_event_cnt /* Number of times slow start event occurred */;
1877 struct regpair iscsi_tx_fast_retransmit_event_cnt /* Number of times fast retransmit event occurred */;
1878 struct regpair iscsi_tx_pure_ack_cnt /* Transmitted Pure-ACKs */;
1879 struct regpair iscsi_tx_delayed_ack_cnt /* Transmitted Delayed ACKs */;
1883 * Per PF iSCSI transmit path statistics - yStorm RAM structure
1885 struct ystorm_iscsi_stats_drv
1887 struct regpair iscsi_tx_data_pdu_cnt /* Number of data PDUs that were transmitted */;
1888 struct regpair iscsi_tx_r2t_pdu_cnt /* Number of R2T PDUs that were transmitted */;
1889 struct regpair iscsi_tx_total_pdu_cnt /* Number of total PDUs that were transmitted */;
1890 struct regpair iscsi_tx_tcp_payload_bytes_cnt /* Transmitted In-Order TCP Payload Bytes */;
1891 struct regpair iscsi_tx_tcp_pkt_cnt /* Transmitted In-Order TCP Packets */;
1894 struct e4_tstorm_iscsi_task_ag_ctx
1896 u8 byte0 /* cdu_validation */;
1897 u8 byte1 /* state */;
1898 __le16 word0 /* icid */;
1900 #define E4_TSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_MASK 0xF /* connection_type */
1901 #define E4_TSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_SHIFT 0
1902 #define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT0_MASK 0x1 /* exist_in_qm0 */
1903 #define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT0_SHIFT 4
1904 #define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT1_MASK 0x1 /* exist_in_qm1 */
1905 #define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT 5
1906 #define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT2_MASK 0x1 /* bit2 */
1907 #define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT2_SHIFT 6
1908 #define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT3_MASK 0x1 /* bit3 */
1909 #define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT3_SHIFT 7
1911 #define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT4_MASK 0x1 /* bit4 */
1912 #define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT4_SHIFT 0
1913 #define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT5_MASK 0x1 /* bit5 */
1914 #define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT5_SHIFT 1
1915 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF0_MASK 0x3 /* timer0cf */
1916 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF0_SHIFT 2
1917 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF1_MASK 0x3 /* timer1cf */
1918 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF1_SHIFT 4
1919 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF2_MASK 0x3 /* timer2cf */
1920 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF2_SHIFT 6
1922 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF3_MASK 0x3 /* timer_stop_all */
1923 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF3_SHIFT 0
1924 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF4_MASK 0x3 /* cf4 */
1925 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF4_SHIFT 2
1926 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF5_MASK 0x3 /* cf5 */
1927 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF5_SHIFT 4
1928 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF6_MASK 0x3 /* cf6 */
1929 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF6_SHIFT 6
1931 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF7_MASK 0x3 /* cf7 */
1932 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF7_SHIFT 0
1933 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF0EN_MASK 0x1 /* cf0en */
1934 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF0EN_SHIFT 2
1935 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF1EN_MASK 0x1 /* cf1en */
1936 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF1EN_SHIFT 3
1937 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF2EN_MASK 0x1 /* cf2en */
1938 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF2EN_SHIFT 4
1939 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF3EN_MASK 0x1 /* cf3en */
1940 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF3EN_SHIFT 5
1941 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF4EN_MASK 0x1 /* cf4en */
1942 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF4EN_SHIFT 6
1943 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF5EN_MASK 0x1 /* cf5en */
1944 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF5EN_SHIFT 7
1946 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF6EN_MASK 0x1 /* cf6en */
1947 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF6EN_SHIFT 0
1948 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF7EN_MASK 0x1 /* cf7en */
1949 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF7EN_SHIFT 1
1950 #define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE0EN_MASK 0x1 /* rule0en */
1951 #define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE0EN_SHIFT 2
1952 #define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1 /* rule1en */
1953 #define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 3
1954 #define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE2EN_MASK 0x1 /* rule2en */
1955 #define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE2EN_SHIFT 4
1956 #define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1 /* rule3en */
1957 #define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 5
1958 #define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1 /* rule4en */
1959 #define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 6
1960 #define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1 /* rule5en */
1961 #define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 7
1962 u8 byte2 /* byte2 */;
1963 __le16 word1 /* word1 */;
1964 __le32 reg0 /* reg0 */;
1965 u8 byte3 /* byte3 */;
1966 u8 byte4 /* byte4 */;
1967 __le16 word2 /* word2 */;
1968 __le16 word3 /* word3 */;
1969 __le16 word4 /* word4 */;
1970 __le32 reg1 /* reg1 */;
1971 __le32 reg2 /* reg2 */;
1974 struct e5_tstorm_iscsi_task_ag_ctx
1976 u8 byte0 /* cdu_validation */;
1977 u8 byte1 /* state_and_core_id */;
1978 __le16 word0 /* icid */;
1980 #define E5_TSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_MASK 0xF /* connection_type */
1981 #define E5_TSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_SHIFT 0
1982 #define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT0_MASK 0x1 /* exist_in_qm0 */
1983 #define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT0_SHIFT 4
1984 #define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT1_MASK 0x1 /* exist_in_qm1 */
1985 #define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT 5
1986 #define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT2_MASK 0x1 /* bit2 */
1987 #define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT2_SHIFT 6
1988 #define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT3_MASK 0x1 /* bit3 */
1989 #define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT3_SHIFT 7
1991 #define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT4_MASK 0x1 /* bit4 */
1992 #define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT4_SHIFT 0
1993 #define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT5_MASK 0x1 /* bit5 */
1994 #define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT5_SHIFT 1
1995 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF0_MASK 0x3 /* timer0cf */
1996 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF0_SHIFT 2
1997 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF1_MASK 0x3 /* timer1cf */
1998 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF1_SHIFT 4
1999 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF2_MASK 0x3 /* timer2cf */
2000 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF2_SHIFT 6
2002 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF3_MASK 0x3 /* timer_stop_all */
2003 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF3_SHIFT 0
2004 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF4_MASK 0x3 /* cf4 */
2005 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF4_SHIFT 2
2006 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF5_MASK 0x3 /* cf5 */
2007 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF5_SHIFT 4
2008 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF6_MASK 0x3 /* cf6 */
2009 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF6_SHIFT 6
2011 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF7_MASK 0x3 /* cf7 */
2012 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF7_SHIFT 0
2013 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF0EN_MASK 0x1 /* cf0en */
2014 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF0EN_SHIFT 2
2015 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF1EN_MASK 0x1 /* cf1en */
2016 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF1EN_SHIFT 3
2017 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF2EN_MASK 0x1 /* cf2en */
2018 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF2EN_SHIFT 4
2019 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF3EN_MASK 0x1 /* cf3en */
2020 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF3EN_SHIFT 5
2021 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF4EN_MASK 0x1 /* cf4en */
2022 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF4EN_SHIFT 6
2023 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF5EN_MASK 0x1 /* cf5en */
2024 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF5EN_SHIFT 7
2026 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF6EN_MASK 0x1 /* cf6en */
2027 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF6EN_SHIFT 0
2028 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF7EN_MASK 0x1 /* cf7en */
2029 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF7EN_SHIFT 1
2030 #define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE0EN_MASK 0x1 /* rule0en */
2031 #define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE0EN_SHIFT 2
2032 #define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1 /* rule1en */
2033 #define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 3
2034 #define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE2EN_MASK 0x1 /* rule2en */
2035 #define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE2EN_SHIFT 4
2036 #define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1 /* rule3en */
2037 #define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 5
2038 #define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1 /* rule4en */
2039 #define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 6
2040 #define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1 /* rule5en */
2041 #define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 7
2042 u8 byte2 /* byte2 */;
2043 __le16 word1 /* word1 */;
2044 __le32 reg0 /* reg0 */;
2045 u8 byte3 /* regpair0 */;
2046 u8 byte4 /* byte4 */;
2047 __le16 word2 /* word2 */;
2048 __le16 word3 /* word3 */;
2049 __le16 word4 /* word4 */;
2050 __le32 reg1 /* regpair1 */;
2051 __le32 reg2 /* reg2 */;
2055 * iSCSI doorbell data
2057 struct iscsi_db_data
2060 #define ISCSI_DB_DATA_DEST_MASK 0x3 /* destination of doorbell (use enum db_dest) */
2061 #define ISCSI_DB_DATA_DEST_SHIFT 0
2062 #define ISCSI_DB_DATA_AGG_CMD_MASK 0x3 /* aggregative command to CM (use enum db_agg_cmd_sel) */
2063 #define ISCSI_DB_DATA_AGG_CMD_SHIFT 2
2064 #define ISCSI_DB_DATA_BYPASS_EN_MASK 0x1 /* enable QM bypass */
2065 #define ISCSI_DB_DATA_BYPASS_EN_SHIFT 4
2066 #define ISCSI_DB_DATA_RESERVED_MASK 0x1
2067 #define ISCSI_DB_DATA_RESERVED_SHIFT 5
2068 #define ISCSI_DB_DATA_AGG_VAL_SEL_MASK 0x3 /* aggregative value selection */
2069 #define ISCSI_DB_DATA_AGG_VAL_SEL_SHIFT 6
2070 u8 agg_flags /* bit for every DQ counter flags in CM context that DQ can increment */;
2074 #endif /* __ISCSI_COMMON__ */