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
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25 * POSSIBILITY OF SUCH DAMAGE.
32 #ifndef __ISCSI_COMMON__
33 #define __ISCSI_COMMON__
34 /**********************/
35 /* ISCSI FW CONSTANTS */
36 /**********************/
38 /* iSCSI HSI constants */
39 #define ISCSI_DEFAULT_MTU (1500)
41 /* KWQ (kernel work queue) layer codes */
42 #define ISCSI_SLOW_PATH_LAYER_CODE (6)
44 /* iSCSI parameter defaults */
45 #define ISCSI_DEFAULT_HEADER_DIGEST (0)
46 #define ISCSI_DEFAULT_DATA_DIGEST (0)
47 #define ISCSI_DEFAULT_INITIAL_R2T (1)
48 #define ISCSI_DEFAULT_IMMEDIATE_DATA (1)
49 #define ISCSI_DEFAULT_MAX_PDU_LENGTH (0x2000)
50 #define ISCSI_DEFAULT_FIRST_BURST_LENGTH (0x10000)
51 #define ISCSI_DEFAULT_MAX_BURST_LENGTH (0x40000)
52 #define ISCSI_DEFAULT_MAX_OUTSTANDING_R2T (1)
54 /* iSCSI parameter limits */
55 #define ISCSI_MIN_VAL_MAX_PDU_LENGTH (0x200)
56 #define ISCSI_MAX_VAL_MAX_PDU_LENGTH (0xffffff)
57 #define ISCSI_MIN_VAL_BURST_LENGTH (0x200)
58 #define ISCSI_MAX_VAL_BURST_LENGTH (0xffffff)
59 #define ISCSI_MIN_VAL_MAX_OUTSTANDING_R2T (1)
60 #define ISCSI_MAX_VAL_MAX_OUTSTANDING_R2T (0xff) // 0x10000 according to RFC
62 #define ISCSI_AHS_CNTL_SIZE 4
64 #define ISCSI_WQE_NUM_SGES_SLOWIO (0xf)
66 /* iSCSI reserved params */
67 #define ISCSI_ITT_ALL_ONES (0xffffffff)
68 #define ISCSI_TTT_ALL_ONES (0xffffffff)
70 #define ISCSI_OPTION_1_OFF_CHIP_TCP 1
71 #define ISCSI_OPTION_2_ON_CHIP_TCP 2
73 #define ISCSI_INITIATOR_MODE 0
74 #define ISCSI_TARGET_MODE 1
77 /* iSCSI request op codes */
78 #define ISCSI_OPCODE_NOP_OUT (0)
79 #define ISCSI_OPCODE_SCSI_CMD (1)
80 #define ISCSI_OPCODE_TMF_REQUEST (2)
81 #define ISCSI_OPCODE_LOGIN_REQUEST (3)
82 #define ISCSI_OPCODE_TEXT_REQUEST (4)
83 #define ISCSI_OPCODE_DATA_OUT (5)
84 #define ISCSI_OPCODE_LOGOUT_REQUEST (6)
86 /* iSCSI response/messages op codes */
87 #define ISCSI_OPCODE_NOP_IN (0x20)
88 #define ISCSI_OPCODE_SCSI_RESPONSE (0x21)
89 #define ISCSI_OPCODE_TMF_RESPONSE (0x22)
90 #define ISCSI_OPCODE_LOGIN_RESPONSE (0x23)
91 #define ISCSI_OPCODE_TEXT_RESPONSE (0x24)
92 #define ISCSI_OPCODE_DATA_IN (0x25)
93 #define ISCSI_OPCODE_LOGOUT_RESPONSE (0x26)
94 #define ISCSI_OPCODE_R2T (0x31)
95 #define ISCSI_OPCODE_ASYNC_MSG (0x32)
96 #define ISCSI_OPCODE_REJECT (0x3f)
99 #define ISCSI_STAGE_SECURITY_NEGOTIATION (0)
100 #define ISCSI_STAGE_LOGIN_OPERATIONAL_NEGOTIATION (1)
101 #define ISCSI_STAGE_FULL_FEATURE_PHASE (3)
103 /* iSCSI CQE errors */
104 #define CQE_ERROR_BITMAP_DATA_DIGEST (0x08)
105 #define CQE_ERROR_BITMAP_RCV_ON_INVALID_CONN (0x10)
106 #define CQE_ERROR_BITMAP_DATA_TRUNCATED (0x20)
112 struct cqe_error_bitmap
114 u8 cqe_error_status_bits;
115 #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 */
116 #define CQE_ERROR_BITMAP_DIF_ERR_BITS_SHIFT 0
117 #define CQE_ERROR_BITMAP_DATA_DIGEST_ERR_MASK 0x1 /* Mark task with data digest error (1 bit) */
118 #define CQE_ERROR_BITMAP_DATA_DIGEST_ERR_SHIFT 3
119 #define CQE_ERROR_BITMAP_RCV_ON_INVALID_CONN_MASK 0x1 /* Mark receive on invalid connection */
120 #define CQE_ERROR_BITMAP_RCV_ON_INVALID_CONN_SHIFT 4
121 #define CQE_ERROR_BITMAP_DATA_TRUNCATED_ERR_MASK 0x1 /* Target Mode - Mark middle task error, data truncated */
122 #define CQE_ERROR_BITMAP_DATA_TRUNCATED_ERR_SHIFT 5
123 #define CQE_ERROR_BITMAP_UNDER_RUN_ERR_MASK 0x1
124 #define CQE_ERROR_BITMAP_UNDER_RUN_ERR_SHIFT 6
125 #define CQE_ERROR_BITMAP_RESERVED2_MASK 0x1
126 #define CQE_ERROR_BITMAP_RESERVED2_SHIFT 7
130 union cqe_error_status
132 u8 error_status /* all error bits as uint8 */;
133 struct cqe_error_bitmap error_bits /* cqe errors bitmap */;
138 * iSCSI Login Response PDU header
142 __le32 data[12] /* iscsi header data */;
147 * iSCSI Asynchronous Message PDU header
149 struct iscsi_async_msg_hdr
151 __le16 reserved0 /* reserved */;
153 #define ISCSI_ASYNC_MSG_HDR_RSRV_MASK 0x7F /* reserved */
154 #define ISCSI_ASYNC_MSG_HDR_RSRV_SHIFT 0
155 #define ISCSI_ASYNC_MSG_HDR_CONST1_MASK 0x1 /* const1 */
156 #define ISCSI_ASYNC_MSG_HDR_CONST1_SHIFT 7
157 u8 opcode /* opcode */;
158 __le32 hdr_second_dword;
159 #define ISCSI_ASYNC_MSG_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */
160 #define ISCSI_ASYNC_MSG_HDR_DATA_SEG_LEN_SHIFT 0
161 #define ISCSI_ASYNC_MSG_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */
162 #define ISCSI_ASYNC_MSG_HDR_TOTAL_AHS_LEN_SHIFT 24
163 struct regpair lun /* Logical Unit Number */;
164 __le32 all_ones /* should be 0xffffffff */;
165 __le32 reserved1 /* reserved */;
166 __le32 stat_sn /* stat_sn */;
167 __le32 exp_cmd_sn /* exp_cmd_sn */;
168 __le32 max_cmd_sn /* max_cmd_sn */;
169 __le16 param1_rsrv /* Parameter1 or Reserved */;
170 u8 async_vcode /* AsuncVCode */;
171 u8 async_event /* AsyncEvent */;
172 __le16 param3_rsrv /* Parameter3 or Reserved */;
173 __le16 param2_rsrv /* Parameter2 or Reserved */;
174 __le32 reserved7 /* reserved */;
179 * iSCSI Command PDU header
183 __le16 reserved1 /* reserved */;
185 #define ISCSI_CMD_HDR_ATTR_MASK 0x7 /* attributes */
186 #define ISCSI_CMD_HDR_ATTR_SHIFT 0
187 #define ISCSI_CMD_HDR_RSRV_MASK 0x3 /* reserved */
188 #define ISCSI_CMD_HDR_RSRV_SHIFT 3
189 #define ISCSI_CMD_HDR_WRITE_MASK 0x1 /* write */
190 #define ISCSI_CMD_HDR_WRITE_SHIFT 5
191 #define ISCSI_CMD_HDR_READ_MASK 0x1 /* read */
192 #define ISCSI_CMD_HDR_READ_SHIFT 6
193 #define ISCSI_CMD_HDR_FINAL_MASK 0x1 /* final */
194 #define ISCSI_CMD_HDR_FINAL_SHIFT 7
196 #define ISCSI_CMD_HDR_OPCODE_MASK 0x3F /* Opcode */
197 #define ISCSI_CMD_HDR_OPCODE_SHIFT 0
198 #define ISCSI_CMD_HDR_IMM_MASK 0x1 /* Immediate delivery */
199 #define ISCSI_CMD_HDR_IMM_SHIFT 6
200 #define ISCSI_CMD_HDR_RSRV1_MASK 0x1 /* first bit of iSCSI PDU header */
201 #define ISCSI_CMD_HDR_RSRV1_SHIFT 7
202 __le32 hdr_second_dword;
203 #define ISCSI_CMD_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */
204 #define ISCSI_CMD_HDR_DATA_SEG_LEN_SHIFT 0
205 #define ISCSI_CMD_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */
206 #define ISCSI_CMD_HDR_TOTAL_AHS_LEN_SHIFT 24
207 struct regpair lun /* Logical Unit Number. [constant, initialized] */;
208 __le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */;
209 __le32 expected_transfer_length /* Expected Data Transfer Length (only 3 bytes are significant) */;
210 __le32 cmd_sn /* CmdSn. [constant, initialized] */;
211 __le32 exp_stat_sn /* various fields for middle-path PDU. [constant, initialized] */;
212 __le32 cdb[4] /* CDB. [constant, initialized] */;
217 * iSCSI Common PDU header
219 struct iscsi_common_hdr
221 u8 hdr_status /* Status field of ISCSI header */;
222 u8 hdr_response /* Response field of ISCSI header for Responses / Reserved for Data-In */;
223 u8 hdr_flags /* Flags field of ISCSI header */;
225 #define ISCSI_COMMON_HDR_OPCODE_MASK 0x3F /* Opcode */
226 #define ISCSI_COMMON_HDR_OPCODE_SHIFT 0
227 #define ISCSI_COMMON_HDR_IMM_MASK 0x1 /* Immediate */
228 #define ISCSI_COMMON_HDR_IMM_SHIFT 6
229 #define ISCSI_COMMON_HDR_RSRV_MASK 0x1 /* first bit of iSCSI PDU header */
230 #define ISCSI_COMMON_HDR_RSRV_SHIFT 7
231 __le32 hdr_second_dword;
232 #define ISCSI_COMMON_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */
233 #define ISCSI_COMMON_HDR_DATA_SEG_LEN_SHIFT 0
234 #define ISCSI_COMMON_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */
235 #define ISCSI_COMMON_HDR_TOTAL_AHS_LEN_SHIFT 24
236 struct regpair lun_reserved /* Bytes 8..15 : LUN (if PDU contains a LUN field) or reserved */;
237 __le32 itt /* ITT - common to all headers */;
238 __le32 ttt /* bytes 20 to 23 - common ttt to various PDU headers */;
239 __le32 cmdstat_sn /* bytes 24 to 27 - common cmd_sn (initiator) or stat_sn (target) to various PDU headers */;
240 __le32 exp_statcmd_sn /* bytes 28 to 31 - common expected stat_sn (initiator) or cmd_sn (target) to various PDU headers */;
241 __le32 max_cmd_sn /* bytes 32 to 35 - common max cmd_sn to various PDU headers */;
242 __le32 data[3] /* bytes 36 to 47 */;
247 * ISCSI connection offload params passed by driver to FW in ISCSI offload ramrod
249 struct iscsi_conn_offload_params
251 struct regpair sq_pbl_addr /* PBL SQ pointer */;
252 struct regpair r2tq_pbl_addr /* PBL R2TQ pointer */;
253 struct regpair xhq_pbl_addr /* PBL XHQ pointer */;
254 struct regpair uhq_pbl_addr /* PBL UHQ pointer */;
255 __le32 initial_ack /* Initial ack, received from TCP */;
256 __le16 physical_q0 /* Physical QM queue to be tied to logical Q0 */;
257 __le16 physical_q1 /* Physical QM queue to be tied to logical Q1 */;
259 #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). */
260 #define ISCSI_CONN_OFFLOAD_PARAMS_TCP_ON_CHIP_1B_SHIFT 0
261 #define ISCSI_CONN_OFFLOAD_PARAMS_TARGET_MODE_MASK 0x1 /* iSCSI connect mode: 0-iSCSI Initiator, 1-iSCSI Target */
262 #define ISCSI_CONN_OFFLOAD_PARAMS_TARGET_MODE_SHIFT 1
263 #define ISCSI_CONN_OFFLOAD_PARAMS_RESTRICTED_MODE_MASK 0x1 /* Restricted mode: 0 - un-restricted (deviating from the RFC), 1 - restricted (according to the RFC) */
264 #define ISCSI_CONN_OFFLOAD_PARAMS_RESTRICTED_MODE_SHIFT 2
265 #define ISCSI_CONN_OFFLOAD_PARAMS_RESERVED1_MASK 0x1F /* reserved */
266 #define ISCSI_CONN_OFFLOAD_PARAMS_RESERVED1_SHIFT 3
267 u8 pbl_page_size_log /* Page size with PBEs log; Page Size = 2^(page_size_log+12) */;
268 u8 pbe_page_size_log /* PBE page size with log; Page Size = 2^(page_size_log+12) */;
269 u8 default_cq /* Default CQ used to write unsolicited data */;
270 __le32 stat_sn /* StatSn for Target Mode only: the first Login Response StatSn value for Target mode */;
277 struct iscsi_slow_path_hdr
279 u8 op_code /* iscsi bus-drv message opcode */;
281 #define ISCSI_SLOW_PATH_HDR_RESERVED0_MASK 0xF
282 #define ISCSI_SLOW_PATH_HDR_RESERVED0_SHIFT 0
283 #define ISCSI_SLOW_PATH_HDR_LAYER_CODE_MASK 0x7 /* protocol layer (L2,L3,L4,L5) */
284 #define ISCSI_SLOW_PATH_HDR_LAYER_CODE_SHIFT 4
285 #define ISCSI_SLOW_PATH_HDR_RESERVED1_MASK 0x1
286 #define ISCSI_SLOW_PATH_HDR_RESERVED1_SHIFT 7
290 * ISCSI connection update params passed by driver to FW in ISCSI update ramrod
292 struct iscsi_conn_update_ramrod_params
294 struct iscsi_slow_path_hdr hdr /* spe message header. */;
295 __le16 conn_id /* ISCSI Connection ID. (MOTI_COHEN : draft for DrvSim sake) */;
296 __le32 fw_cid /* Context ID (cid) of the connection. (MOTI_COHEN : draft for DrvSim sake) */;
298 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_HD_EN_MASK 0x1 /* Is header digest enabled */
299 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_HD_EN_SHIFT 0
300 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DD_EN_MASK 0x1 /* Is data digest enabled */
301 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DD_EN_SHIFT 1
302 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_INITIAL_R2T_MASK 0x1 /* Initial R2T */
303 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_INITIAL_R2T_SHIFT 2
304 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_IMMEDIATE_DATA_MASK 0x1 /* Immediate data */
305 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_IMMEDIATE_DATA_SHIFT 3
306 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DIF_BLOCK_SIZE_MASK 0x1 /* 0 - 512B, 1 - 4K */
307 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DIF_BLOCK_SIZE_SHIFT 4
308 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DIF_ON_HOST_EN_MASK 0x1 /* 0 - no DIF, 1 - could be enabled per task */
309 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DIF_ON_HOST_EN_SHIFT 5
310 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_RESERVED1_MASK 0x3
311 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_RESERVED1_SHIFT 6
313 __le32 max_seq_size /* Maximum sequence size. Valid for TX and RX */;
314 __le32 max_send_pdu_length /* Maximum PDU size. Valid for the TX */;
315 __le32 max_recv_pdu_length /* Maximum PDU size. Valid for the RX */;
316 __le32 first_seq_length /* Initial sequence length */;
317 __le32 exp_stat_sn /* ExpStatSn - Option1 Only */;
322 * iSCSI Command PDU header with Extended CDB (Initiator Mode)
324 struct iscsi_ext_cdb_cmd_hdr
326 __le16 reserved1 /* reserved */;
328 #define ISCSI_EXT_CDB_CMD_HDR_ATTR_MASK 0x7 /* attributes */
329 #define ISCSI_EXT_CDB_CMD_HDR_ATTR_SHIFT 0
330 #define ISCSI_EXT_CDB_CMD_HDR_RSRV_MASK 0x3 /* reserved */
331 #define ISCSI_EXT_CDB_CMD_HDR_RSRV_SHIFT 3
332 #define ISCSI_EXT_CDB_CMD_HDR_WRITE_MASK 0x1 /* write */
333 #define ISCSI_EXT_CDB_CMD_HDR_WRITE_SHIFT 5
334 #define ISCSI_EXT_CDB_CMD_HDR_READ_MASK 0x1 /* read */
335 #define ISCSI_EXT_CDB_CMD_HDR_READ_SHIFT 6
336 #define ISCSI_EXT_CDB_CMD_HDR_FINAL_MASK 0x1 /* final */
337 #define ISCSI_EXT_CDB_CMD_HDR_FINAL_SHIFT 7
338 u8 opcode /* opcode. [constant, initialized] */;
339 __le32 hdr_second_dword;
340 #define ISCSI_EXT_CDB_CMD_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */
341 #define ISCSI_EXT_CDB_CMD_HDR_DATA_SEG_LEN_SHIFT 0
342 #define ISCSI_EXT_CDB_CMD_HDR_CDB_SIZE_MASK 0xFF /* The Extended CDB size in bytes. Maximum Extended CDB size supported is CDB 64B. */
343 #define ISCSI_EXT_CDB_CMD_HDR_CDB_SIZE_SHIFT 24
344 struct regpair lun /* Logical Unit Number. [constant, initialized] */;
345 __le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */;
346 __le32 expected_transfer_length /* Expected Data Transfer Length (only 3 bytes are significant) */;
347 __le32 cmd_sn /* CmdSn. [constant, initialized] */;
348 __le32 exp_stat_sn /* various fields for middle-path PDU. [constant, initialized] */;
349 struct scsi_sge cdb_sge /* Extended CDBs dedicated SGE */;
353 * iSCSI login request PDU header
355 struct iscsi_login_req_hdr
357 u8 version_min /* Version-min */;
358 u8 version_max /* Version-max */;
360 #define ISCSI_LOGIN_REQ_HDR_NSG_MASK 0x3 /* Next Stage (NSG) */
361 #define ISCSI_LOGIN_REQ_HDR_NSG_SHIFT 0
362 #define ISCSI_LOGIN_REQ_HDR_CSG_MASK 0x3 /* Current stage (CSG) */
363 #define ISCSI_LOGIN_REQ_HDR_CSG_SHIFT 2
364 #define ISCSI_LOGIN_REQ_HDR_RSRV_MASK 0x3 /* reserved */
365 #define ISCSI_LOGIN_REQ_HDR_RSRV_SHIFT 4
366 #define ISCSI_LOGIN_REQ_HDR_C_MASK 0x1 /* C (Continue) bit */
367 #define ISCSI_LOGIN_REQ_HDR_C_SHIFT 6
368 #define ISCSI_LOGIN_REQ_HDR_T_MASK 0x1 /* T (Transit) bit */
369 #define ISCSI_LOGIN_REQ_HDR_T_SHIFT 7
370 u8 opcode /* opcode. [constant, initialized] */;
371 __le32 hdr_second_dword;
372 #define ISCSI_LOGIN_REQ_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */
373 #define ISCSI_LOGIN_REQ_HDR_DATA_SEG_LEN_SHIFT 0
374 #define ISCSI_LOGIN_REQ_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */
375 #define ISCSI_LOGIN_REQ_HDR_TOTAL_AHS_LEN_SHIFT 24
376 __le32 isid_tabc /* Session identifier high double word [constant, initialized] */;
377 __le16 tsih /* TSIH */;
378 __le16 isid_d /* Session identifier low word [constant, initialized] */;
379 __le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */;
381 __le16 cid /* Unique Connection ID within the session [constant, initialized] */;
382 __le32 cmd_sn /* CmdSn. [constant, initialized] */;
383 __le32 exp_stat_sn /* various fields for middle-path PDU. [constant, initialized] */;
388 * iSCSI logout request PDU header
390 struct iscsi_logout_req_hdr
392 __le16 reserved0 /* reserved */;
393 u8 reason_code /* Reason Code */;
394 u8 opcode /* opcode. [constant, initialized] */;
396 __le32 reserved2[2] /* Reserved */;
397 __le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */;
398 __le16 reserved3 /* Reserved */;
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] */;
402 __le32 reserved4[4] /* Reserved */;
406 * iSCSI Data-out PDU header
408 struct iscsi_data_out_hdr
410 __le16 reserved1 /* reserved */;
412 #define ISCSI_DATA_OUT_HDR_RSRV_MASK 0x7F /* reserved */
413 #define ISCSI_DATA_OUT_HDR_RSRV_SHIFT 0
414 #define ISCSI_DATA_OUT_HDR_FINAL_MASK 0x1 /* final */
415 #define ISCSI_DATA_OUT_HDR_FINAL_SHIFT 7
416 u8 opcode /* opcode */;
417 __le32 reserved2 /* reserved */;
418 struct regpair lun /* Logical Unit Number */;
419 __le32 itt /* Initiator Task Tag (only 2 bytes are significant) */;
420 __le32 ttt /* Target Transfer Tag (from R2T) */;
421 __le32 reserved3 /* resrved */;
422 __le32 exp_stat_sn /* Expected StatSn */;
423 __le32 reserved4 /* resrved */;
424 __le32 data_sn /* DataSN - PDU index in sequnece */;
425 __le32 buffer_offset /* Buffer Offset - offset in task */;
426 __le32 reserved5 /* resrved */;
430 * iSCSI Data-in PDU header
432 struct iscsi_data_in_hdr
434 u8 status_rsvd /* Status or reserved */;
435 u8 reserved1 /* reserved */;
437 #define ISCSI_DATA_IN_HDR_STATUS_MASK 0x1 /* Status */
438 #define ISCSI_DATA_IN_HDR_STATUS_SHIFT 0
439 #define ISCSI_DATA_IN_HDR_UNDERFLOW_MASK 0x1 /* Residual Underflow */
440 #define ISCSI_DATA_IN_HDR_UNDERFLOW_SHIFT 1
441 #define ISCSI_DATA_IN_HDR_OVERFLOW_MASK 0x1 /* Residual Overflow */
442 #define ISCSI_DATA_IN_HDR_OVERFLOW_SHIFT 2
443 #define ISCSI_DATA_IN_HDR_RSRV_MASK 0x7 /* reserved - 0 */
444 #define ISCSI_DATA_IN_HDR_RSRV_SHIFT 3
445 #define ISCSI_DATA_IN_HDR_ACK_MASK 0x1 /* Acknowledge */
446 #define ISCSI_DATA_IN_HDR_ACK_SHIFT 6
447 #define ISCSI_DATA_IN_HDR_FINAL_MASK 0x1 /* final */
448 #define ISCSI_DATA_IN_HDR_FINAL_SHIFT 7
449 u8 opcode /* opcode */;
450 __le32 reserved2 /* reserved */;
451 struct regpair lun /* Logical Unit Number */;
452 __le32 itt /* Initiator Task Tag (only 2 bytes are significant) */;
453 __le32 ttt /* Target Transfer Tag (from R2T) */;
454 __le32 stat_sn /* StatSN or reserved */;
455 __le32 exp_cmd_sn /* Expected CmdSn */;
456 __le32 max_cmd_sn /* MaxCmdSn */;
457 __le32 data_sn /* DataSN - PDU index in sequnece */;
458 __le32 buffer_offset /* Buffer Offset - offset in task */;
459 __le32 residual_count /* Residual Count */;
463 * iSCSI R2T PDU header
467 u8 reserved0[3] /* reserved */;
468 u8 opcode /* opcode */;
469 __le32 reserved2 /* reserved */;
470 struct regpair lun /* Logical Unit Number */;
471 __le32 itt /* Initiator Task Tag */;
472 __le32 ttt /* Target Transfer Tag */;
473 __le32 stat_sn /* stat sn */;
474 __le32 exp_cmd_sn /* Expected CmdSn */;
475 __le32 max_cmd_sn /* Max CmdSn */;
476 __le32 r2t_sn /* DataSN - PDU index in sequnece */;
477 __le32 buffer_offset /* Buffer Offset - offset in task */;
478 __le32 desired_data_trns_len /* Desired data trnsfer len */;
482 * iSCSI NOP-out PDU header
484 struct iscsi_nop_out_hdr
486 __le16 reserved1 /* reserved */;
488 #define ISCSI_NOP_OUT_HDR_RSRV_MASK 0x7F /* reserved */
489 #define ISCSI_NOP_OUT_HDR_RSRV_SHIFT 0
490 #define ISCSI_NOP_OUT_HDR_CONST1_MASK 0x1 /* const1 */
491 #define ISCSI_NOP_OUT_HDR_CONST1_SHIFT 7
492 u8 opcode /* opcode */;
493 __le32 reserved2 /* reserved */;
494 struct regpair lun /* Logical Unit Number */;
495 __le32 itt /* Initiator Task Tag (only 2 bytes are significant) */;
496 __le32 ttt /* Target Transfer Tag (from R2T) */;
497 __le32 cmd_sn /* CmdSN */;
498 __le32 exp_stat_sn /* Expected StatSn */;
499 __le32 reserved3 /* reserved */;
500 __le32 reserved4 /* reserved */;
501 __le32 reserved5 /* reserved */;
502 __le32 reserved6 /* reserved */;
506 * iSCSI NOP-in PDU header
508 struct iscsi_nop_in_hdr
510 __le16 reserved0 /* reserved */;
512 #define ISCSI_NOP_IN_HDR_RSRV_MASK 0x7F /* reserved */
513 #define ISCSI_NOP_IN_HDR_RSRV_SHIFT 0
514 #define ISCSI_NOP_IN_HDR_CONST1_MASK 0x1 /* const1 */
515 #define ISCSI_NOP_IN_HDR_CONST1_SHIFT 7
516 u8 opcode /* opcode */;
517 __le32 hdr_second_dword;
518 #define ISCSI_NOP_IN_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */
519 #define ISCSI_NOP_IN_HDR_DATA_SEG_LEN_SHIFT 0
520 #define ISCSI_NOP_IN_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */
521 #define ISCSI_NOP_IN_HDR_TOTAL_AHS_LEN_SHIFT 24
522 struct regpair lun /* Logical Unit Number */;
523 __le32 itt /* Initiator Task Tag (only 2 bytes are significant) */;
524 __le32 ttt /* Target Transfer Tag */;
525 __le32 stat_sn /* stat_sn */;
526 __le32 exp_cmd_sn /* exp_cmd_sn */;
527 __le32 max_cmd_sn /* max_cmd_sn */;
528 __le32 reserved5 /* reserved */;
529 __le32 reserved6 /* reserved */;
530 __le32 reserved7 /* reserved */;
534 * iSCSI Login Response PDU header
536 struct iscsi_login_response_hdr
538 u8 version_active /* Version-active */;
539 u8 version_max /* Version-max */;
541 #define ISCSI_LOGIN_RESPONSE_HDR_NSG_MASK 0x3 /* Next Stage (NSG) */
542 #define ISCSI_LOGIN_RESPONSE_HDR_NSG_SHIFT 0
543 #define ISCSI_LOGIN_RESPONSE_HDR_CSG_MASK 0x3 /* Current stage (CSG) */
544 #define ISCSI_LOGIN_RESPONSE_HDR_CSG_SHIFT 2
545 #define ISCSI_LOGIN_RESPONSE_HDR_RSRV_MASK 0x3 /* reserved */
546 #define ISCSI_LOGIN_RESPONSE_HDR_RSRV_SHIFT 4
547 #define ISCSI_LOGIN_RESPONSE_HDR_C_MASK 0x1 /* C (Continue) bit */
548 #define ISCSI_LOGIN_RESPONSE_HDR_C_SHIFT 6
549 #define ISCSI_LOGIN_RESPONSE_HDR_T_MASK 0x1 /* T (Transit) bit */
550 #define ISCSI_LOGIN_RESPONSE_HDR_T_SHIFT 7
551 u8 opcode /* opcode. [constant, initialized] */;
552 __le32 hdr_second_dword;
553 #define ISCSI_LOGIN_RESPONSE_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */
554 #define ISCSI_LOGIN_RESPONSE_HDR_DATA_SEG_LEN_SHIFT 0
555 #define ISCSI_LOGIN_RESPONSE_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */
556 #define ISCSI_LOGIN_RESPONSE_HDR_TOTAL_AHS_LEN_SHIFT 24
557 __le32 isid_tabc /* Session identifier high double word [constant, initialized] */;
558 __le16 tsih /* TSIH */;
559 __le16 isid_d /* Session identifier low word [constant, initialized] */;
560 __le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */;
562 __le32 stat_sn /* CmdSn. [constant, initialized] */;
563 __le32 exp_cmd_sn /* various fields for middle-path PDU. [constant, initialized] */;
564 __le32 max_cmd_sn /* max_cmd_sn */;
566 u8 status_detail /* status_detail */;
567 u8 status_class /* status_class */;
572 * iSCSI Logout Response PDU header
574 struct iscsi_logout_response_hdr
576 u8 reserved1 /* reserved */;
577 u8 response /* response */;
578 u8 flags /* flags and attributes */;
579 u8 opcode /* opcode. [constant, initialized] */;
580 __le32 hdr_second_dword;
581 #define ISCSI_LOGOUT_RESPONSE_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */
582 #define ISCSI_LOGOUT_RESPONSE_HDR_DATA_SEG_LEN_SHIFT 0
583 #define ISCSI_LOGOUT_RESPONSE_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */
584 #define ISCSI_LOGOUT_RESPONSE_HDR_TOTAL_AHS_LEN_SHIFT 24
585 __le32 reserved2[2] /* Reserved */;
586 __le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */;
587 __le32 reserved3 /* Reserved */;
588 __le32 stat_sn /* CmdSN */;
589 __le32 exp_cmd_sn /* Expected StatSn */;
590 __le32 max_cmd_sn /* CmdSN */;
591 __le32 reserved4 /* Reserved */;
592 __le16 time_2_retain /* Time to Retain */;
593 __le16 time_2_wait /* Time to wait */;
594 __le32 reserved5[1] /* Reserved */;
598 * iSCSI Text Request PDU header
600 struct iscsi_text_request_hdr
602 __le16 reserved0 /* reserved */;
604 #define ISCSI_TEXT_REQUEST_HDR_RSRV_MASK 0x3F /* reserved */
605 #define ISCSI_TEXT_REQUEST_HDR_RSRV_SHIFT 0
606 #define ISCSI_TEXT_REQUEST_HDR_C_MASK 0x1 /* C (Continue) bit */
607 #define ISCSI_TEXT_REQUEST_HDR_C_SHIFT 6
608 #define ISCSI_TEXT_REQUEST_HDR_F_MASK 0x1 /* F (Final) bit */
609 #define ISCSI_TEXT_REQUEST_HDR_F_SHIFT 7
610 u8 opcode /* opcode. [constant, initialized] */;
611 __le32 hdr_second_dword;
612 #define ISCSI_TEXT_REQUEST_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */
613 #define ISCSI_TEXT_REQUEST_HDR_DATA_SEG_LEN_SHIFT 0
614 #define ISCSI_TEXT_REQUEST_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */
615 #define ISCSI_TEXT_REQUEST_HDR_TOTAL_AHS_LEN_SHIFT 24
616 struct regpair lun /* Logical Unit Number */;
617 __le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */;
618 __le32 ttt /* Referenced Task Tag or 0xffffffff */;
619 __le32 cmd_sn /* cmd_sn */;
620 __le32 exp_stat_sn /* exp_stat_sn */;
621 __le32 reserved4[4] /* Reserved */;
625 * iSCSI Text Response PDU header
627 struct iscsi_text_response_hdr
629 __le16 reserved1 /* reserved */;
631 #define ISCSI_TEXT_RESPONSE_HDR_RSRV_MASK 0x3F /* reserved */
632 #define ISCSI_TEXT_RESPONSE_HDR_RSRV_SHIFT 0
633 #define ISCSI_TEXT_RESPONSE_HDR_C_MASK 0x1 /* C (Continue) bit */
634 #define ISCSI_TEXT_RESPONSE_HDR_C_SHIFT 6
635 #define ISCSI_TEXT_RESPONSE_HDR_F_MASK 0x1 /* F (Final) bit */
636 #define ISCSI_TEXT_RESPONSE_HDR_F_SHIFT 7
637 u8 opcode /* opcode. [constant, initialized] */;
638 __le32 hdr_second_dword;
639 #define ISCSI_TEXT_RESPONSE_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */
640 #define ISCSI_TEXT_RESPONSE_HDR_DATA_SEG_LEN_SHIFT 0
641 #define ISCSI_TEXT_RESPONSE_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */
642 #define ISCSI_TEXT_RESPONSE_HDR_TOTAL_AHS_LEN_SHIFT 24
643 struct regpair lun /* Logical Unit Number */;
644 __le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */;
645 __le32 ttt /* Target Task Tag */;
646 __le32 stat_sn /* CmdSN */;
647 __le32 exp_cmd_sn /* Expected StatSn */;
648 __le32 max_cmd_sn /* CmdSN */;
649 __le32 reserved4[3] /* Reserved */;
653 * iSCSI TMF Request PDU header
655 struct iscsi_tmf_request_hdr
657 __le16 reserved0 /* reserved */;
658 u8 function /* function */;
659 u8 opcode /* opcode. [constant, initialized] */;
660 __le32 hdr_second_dword;
661 #define ISCSI_TMF_REQUEST_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */
662 #define ISCSI_TMF_REQUEST_HDR_DATA_SEG_LEN_SHIFT 0
663 #define ISCSI_TMF_REQUEST_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */
664 #define ISCSI_TMF_REQUEST_HDR_TOTAL_AHS_LEN_SHIFT 24
665 struct regpair lun /* Logical Unit Number */;
666 __le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */;
667 __le32 rtt /* Referenced Task Tag or 0xffffffff */;
668 __le32 cmd_sn /* cmd_sn */;
669 __le32 exp_stat_sn /* exp_stat_sn */;
670 __le32 ref_cmd_sn /* ref_cmd_sn */;
671 __le32 exp_data_sn /* exp_data_sn */;
672 __le32 reserved4[2] /* Reserved */;
675 struct iscsi_tmf_response_hdr
677 u8 reserved2 /* reserved2 */;
678 u8 hdr_response /* Response field of ISCSI header for Responses / Reserved for Data-In */;
679 u8 hdr_flags /* Flags field of ISCSI header */;
680 u8 opcode /* opcode. [constant, initialized] */;
681 __le32 hdr_second_dword;
682 #define ISCSI_TMF_RESPONSE_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */
683 #define ISCSI_TMF_RESPONSE_HDR_DATA_SEG_LEN_SHIFT 0
684 #define ISCSI_TMF_RESPONSE_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */
685 #define ISCSI_TMF_RESPONSE_HDR_TOTAL_AHS_LEN_SHIFT 24
686 struct regpair reserved0;
687 __le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */;
688 __le32 reserved1 /* Reserved */;
689 __le32 stat_sn /* stat_sn */;
690 __le32 exp_cmd_sn /* exp_cmd_sn */;
691 __le32 max_cmd_sn /* max_cmd_sn */;
692 __le32 reserved4[3] /* Reserved */;
696 * iSCSI Response PDU header
698 struct iscsi_response_hdr
700 u8 hdr_status /* Status field of ISCSI header */;
701 u8 hdr_response /* Response field of ISCSI header for Responses / Reserved for Data-In */;
702 u8 hdr_flags /* Flags field of ISCSI header */;
703 u8 opcode /* opcode. [constant, initialized] */;
704 __le32 hdr_second_dword;
705 #define ISCSI_RESPONSE_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */
706 #define ISCSI_RESPONSE_HDR_DATA_SEG_LEN_SHIFT 0
707 #define ISCSI_RESPONSE_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */
708 #define ISCSI_RESPONSE_HDR_TOTAL_AHS_LEN_SHIFT 24
709 struct regpair lun /* Logical Unit Number */;
710 __le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */;
711 __le32 snack_tag /* Currently ERL>0 is not supported */;
712 __le32 stat_sn /* CmdSN */;
713 __le32 exp_cmd_sn /* Expected StatSn */;
714 __le32 max_cmd_sn /* CmdSN */;
715 __le32 exp_data_sn /* exp_data_sn */;
716 __le32 bi_residual_count /* bi residual count */;
717 __le32 residual_count /* residual count */;
721 * iSCSI Reject PDU header
723 struct iscsi_reject_hdr
725 u8 reserved4 /* Reserved */;
726 u8 hdr_reason /* The reject reason */;
727 u8 hdr_flags /* Flags field of ISCSI header */;
728 u8 opcode /* opcode. [constant, initialized] */;
729 __le32 hdr_second_dword;
730 #define ISCSI_REJECT_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */
731 #define ISCSI_REJECT_HDR_DATA_SEG_LEN_SHIFT 0
732 #define ISCSI_REJECT_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */
733 #define ISCSI_REJECT_HDR_TOTAL_AHS_LEN_SHIFT 24
734 struct regpair reserved0;
737 __le32 stat_sn /* stat_sn */;
738 __le32 exp_cmd_sn /* exp_cmd_sn */;
739 __le32 max_cmd_sn /* max_cmd_sn */;
740 __le32 data_sn /* data_sn */;
741 __le32 reserved3[2] /* reserved3 */;
745 * PDU header part of Ystorm task context
749 struct iscsi_common_hdr common /* Command PDU header */;
750 struct data_hdr data /* Command PDU header */;
751 struct iscsi_cmd_hdr cmd /* Command PDU header */;
752 struct iscsi_ext_cdb_cmd_hdr ext_cdb_cmd /* Command PDU header with extended CDB - Initiator Mode */;
753 struct iscsi_login_req_hdr login_req /* Login request PDU header */;
754 struct iscsi_logout_req_hdr logout_req /* Logout request PDU header */;
755 struct iscsi_data_out_hdr data_out /* Data-out PDU header */;
756 struct iscsi_data_in_hdr data_in /* Data-in PDU header */;
757 struct iscsi_r2t_hdr r2t /* R2T PDU header */;
758 struct iscsi_nop_out_hdr nop_out /* NOP-out PDU header */;
759 struct iscsi_nop_in_hdr nop_in /* NOP-in PDU header */;
760 struct iscsi_login_response_hdr login_response /* Login response PDU header */;
761 struct iscsi_logout_response_hdr logout_response /* Logout response PDU header */;
762 struct iscsi_text_request_hdr text_request /* Text request PDU header */;
763 struct iscsi_text_response_hdr text_response /* Text response PDU header */;
764 struct iscsi_tmf_request_hdr tmf_request /* TMF request PDU header */;
765 struct iscsi_tmf_response_hdr tmf_response /* TMF response PDU header */;
766 struct iscsi_response_hdr response /* Text response PDU header */;
767 struct iscsi_reject_hdr reject /* Reject PDU header */;
768 struct iscsi_async_msg_hdr async_msg /* Asynchronous Message PDU header */;
774 struct iscsi_cqe_common
776 __le16 conn_id /* Drivers connection Id */;
777 u8 cqe_type /* Indicates CQE type */;
778 union cqe_error_status error_bitmap /* CQE error status */;
780 union iscsi_task_hdr iscsi_hdr /* iscsi header union */;
786 struct iscsi_cqe_solicited
788 __le16 conn_id /* Drivers connection Id */;
789 u8 cqe_type /* Indicates CQE type */;
790 union cqe_error_status error_bitmap /* CQE error status */;
791 __le16 itid /* initiator itt (Initiator mode) or target ttt (Target mode) */;
792 u8 task_type /* Task type */;
793 u8 fw_dbg_field /* FW debug params */;
794 u8 caused_conn_err /* Equals 1 if this TID caused the connection error, otherwise equals 0. */;
797 union iscsi_task_hdr iscsi_hdr /* iscsi header union */;
803 struct iscsi_cqe_unsolicited
805 __le16 conn_id /* Drivers connection Id */;
806 u8 cqe_type /* Indicates CQE type */;
807 union cqe_error_status error_bitmap /* CQE error status */;
808 __le16 reserved0 /* Reserved */;
809 u8 reserved1 /* Reserved */;
810 u8 unsol_cqe_type /* Represent this unsolicited CQE position in a sequence of packets belonging to the same unsolicited PDU */;
811 struct regpair rqe_opaque /* Relevant for Unsolicited CQE only: The opaque data of RQ BDQ */;
812 union iscsi_task_hdr iscsi_hdr /* iscsi header union */;
820 struct iscsi_cqe_common cqe_common /* Common CQE */;
821 struct iscsi_cqe_solicited cqe_solicited /* Solicited CQE */;
822 struct iscsi_cqe_unsolicited cqe_unsolicited /* Unsolicited CQE. relevant only when cqe_opcode == ISCSI_CQE_TYPE_UNSOLICITED */;
831 ISCSI_CQE_TYPE_SOLICITED=1 /* iSCSI CQE with solicited data */,
832 ISCSI_CQE_TYPE_UNSOLICITED /* iSCSI CQE with unsolicited data */,
833 ISCSI_CQE_TYPE_SOLICITED_WITH_SENSE /* iSCSI CQE with solicited with sense data */,
834 ISCSI_CQE_TYPE_TASK_CLEANUP /* iSCSI CQE task cleanup */,
835 ISCSI_CQE_TYPE_DUMMY /* iSCSI Dummy CQE */,
846 enum iscsi_cqe_unsolicited_type
848 ISCSI_CQE_UNSOLICITED_NONE /* iSCSI CQE with unsolicited data */,
849 ISCSI_CQE_UNSOLICITED_SINGLE /* iSCSI CQE with unsolicited data */,
850 ISCSI_CQE_UNSOLICITED_FIRST /* iSCSI CQE with unsolicited data */,
851 ISCSI_CQE_UNSOLICITED_MIDDLE /* iSCSI CQE with unsolicited data */,
852 ISCSI_CQE_UNSOLICITED_LAST /* iSCSI CQE with unsolicited data */,
853 MAX_ISCSI_CQE_UNSOLICITED_TYPE
862 struct iscsi_debug_modes
865 #define ISCSI_DEBUG_MODES_ASSERT_IF_RX_CONN_ERROR_MASK 0x1 /* Assert on Rx connection error */
866 #define ISCSI_DEBUG_MODES_ASSERT_IF_RX_CONN_ERROR_SHIFT 0
867 #define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_RESET_MASK 0x1 /* Assert if TCP RESET arrived */
868 #define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_RESET_SHIFT 1
869 #define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_FIN_MASK 0x1 /* Assert if TCP FIN arrived */
870 #define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_FIN_SHIFT 2
871 #define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_CLEANUP_MASK 0x1 /* Assert if cleanup flow */
872 #define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_CLEANUP_SHIFT 3
873 #define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_REJECT_OR_ASYNC_MASK 0x1 /* Assert if REJECT PDU or ASYNC PDU arrived */
874 #define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_REJECT_OR_ASYNC_SHIFT 4
875 #define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_NOP_MASK 0x1 /* Assert if NOP IN PDU or NOP OUT PDU arrived */
876 #define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_NOP_SHIFT 5
877 #define ISCSI_DEBUG_MODES_ASSERT_IF_DATA_DIGEST_ERROR_MASK 0x1 /* Assert if data digest error */
878 #define ISCSI_DEBUG_MODES_ASSERT_IF_DATA_DIGEST_ERROR_SHIFT 6
879 #define ISCSI_DEBUG_MODES_ASSERT_IF_DIF_ERROR_MASK 0x1 /* Assert if DIF error */
880 #define ISCSI_DEBUG_MODES_ASSERT_IF_DIF_ERROR_SHIFT 7
887 struct iscsi_dif_flags
890 #define ISCSI_DIF_FLAGS_PROT_INTERVAL_SIZE_LOG_MASK 0xF /* Protection log interval (9=512 10=1024 11=2048 12=4096 13=8192) */
891 #define ISCSI_DIF_FLAGS_PROT_INTERVAL_SIZE_LOG_SHIFT 0
892 #define ISCSI_DIF_FLAGS_DIF_TO_PEER_MASK 0x1 /* If DIF protection is configured against target (0=no, 1=yes) */
893 #define ISCSI_DIF_FLAGS_DIF_TO_PEER_SHIFT 4
894 #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) */
895 #define ISCSI_DIF_FLAGS_HOST_INTERFACE_SHIFT 5
900 * iSCSI kernel completion queue IDs
902 enum iscsi_eqe_opcode
904 ISCSI_EVENT_TYPE_INIT_FUNC=0 /* iSCSI response after init Ramrod */,
905 ISCSI_EVENT_TYPE_DESTROY_FUNC /* iSCSI response after destroy Ramrod */,
906 ISCSI_EVENT_TYPE_OFFLOAD_CONN /* iSCSI response after option 2 offload Ramrod */,
907 ISCSI_EVENT_TYPE_UPDATE_CONN /* iSCSI response after update Ramrod */,
908 ISCSI_EVENT_TYPE_CLEAR_SQ /* iSCSI response after clear sq Ramrod */,
909 ISCSI_EVENT_TYPE_TERMINATE_CONN /* iSCSI response after termination Ramrod */,
910 ISCSI_EVENT_TYPE_MAC_UPDATE_CONN /* iSCSI response after MAC address update Ramrod */,
911 ISCSI_EVENT_TYPE_ASYN_CONNECT_COMPLETE /* iSCSI response after option 2 connect completed (A-syn EQE) */,
912 ISCSI_EVENT_TYPE_ASYN_TERMINATE_DONE /* iSCSI response after option 2 termination completed (A-syn EQE) */,
913 RESERVED9 /* reserved9 */,
914 ISCSI_EVENT_TYPE_START_OF_ERROR_TYPES=10 /* Never returned in EQE, used to separate Regular event types from Error event types */,
915 ISCSI_EVENT_TYPE_ASYN_ABORT_RCVD /* iSCSI abort response after TCP RST packet receive (A-syn EQE) */,
916 ISCSI_EVENT_TYPE_ASYN_CLOSE_RCVD /* iSCSI response after close receive (A-syn EQE) */,
917 ISCSI_EVENT_TYPE_ASYN_SYN_RCVD /* iSCSI response after TCP SYN+ACK packet receive (A-syn EQE) */,
918 ISCSI_EVENT_TYPE_ASYN_MAX_RT_TIME /* iSCSI error - tcp max retransmit time (A-syn EQE) */,
919 ISCSI_EVENT_TYPE_ASYN_MAX_RT_CNT /* iSCSI error - tcp max retransmit count (A-syn EQE) */,
920 ISCSI_EVENT_TYPE_ASYN_MAX_KA_PROBES_CNT /* iSCSI error - tcp ka probes count (A-syn EQE) */,
921 ISCSI_EVENT_TYPE_ASYN_FIN_WAIT2 /* iSCSI error - tcp fin wait 2 (A-syn EQE) */,
922 ISCSI_EVENT_TYPE_ISCSI_CONN_ERROR /* iSCSI error response (A-syn EQE) */,
923 ISCSI_EVENT_TYPE_TCP_CONN_ERROR /* iSCSI error - tcp error (A-syn EQE) */,
929 * iSCSI EQE and CQE completion status
931 enum iscsi_error_types
934 ISCSI_CQE_ERROR_UNSOLICITED_RCV_ON_INVALID_CONN=1,
935 ISCSI_CONN_ERROR_TASK_CID_MISMATCH /* iSCSI connection error - Corrupted Task context */,
936 ISCSI_CONN_ERROR_TASK_NOT_VALID /* iSCSI connection error - The task is not valid */,
937 ISCSI_CONN_ERROR_RQ_RING_IS_FULL /* iSCSI connection error - RQ full */,
938 ISCSI_CONN_ERROR_CMDQ_RING_IS_FULL /* iSCSI connection error - CMDQ full (Target only) */,
939 ISCSI_CONN_ERROR_HQE_CACHING_FAILED /* iSCSI connection error - HQ error */,
940 ISCSI_CONN_ERROR_HEADER_DIGEST_ERROR /* iSCSI connection error - Header digest error */,
941 ISCSI_CONN_ERROR_LOCAL_COMPLETION_ERROR /* iSCSI connection error - Local completion bit is not correct (A-syn EQE) */,
942 ISCSI_CONN_ERROR_DATA_OVERRUN /* iSCSI connection error - data overrun */,
943 ISCSI_CONN_ERROR_OUT_OF_SGES_ERROR /* iSCSI connection error - out of sges in task context */,
944 ISCSI_CONN_ERROR_IP_OPTIONS_ERROR /* TCP connection error - IP option error */,
945 ISCSI_CONN_ERROR_PRS_ERRORS /* TCP connection error - error indication form parser */,
946 ISCSI_CONN_ERROR_CONNECT_INVALID_TCP_OPTION /* TCP connection error - tcp options error(option 2 only) */,
947 ISCSI_CONN_ERROR_TCP_IP_FRAGMENT_ERROR /* TCP connection error - IP fragmentation error */,
948 ISCSI_CONN_ERROR_PROTOCOL_ERR_AHS_LEN /* iSCSI connection error - invalid AHS length (Target only) */,
949 ISCSI_CONN_ERROR_PROTOCOL_ERR_AHS_TYPE /* iSCSI connection error - invalid AHS type (Target only) */,
950 ISCSI_CONN_ERROR_PROTOCOL_ERR_ITT_OUT_OF_RANGE /* iSCSI connection error - invalid ITT */,
951 ISCSI_CONN_ERROR_PROTOCOL_ERR_TTT_OUT_OF_RANGE /* iSCSI connection error - invalid TTT (Target only) */,
952 ISCSI_CONN_ERROR_PROTOCOL_ERR_DATA_SEG_LEN_EXCEEDS_PDU_SIZE /* iSCSI connection error - PDU data_seg_len > max receive pdu size */,
953 ISCSI_CONN_ERROR_PROTOCOL_ERR_INVALID_OPCODE /* iSCSI connection error - invalid PDU opcode */,
954 ISCSI_CONN_ERROR_PROTOCOL_ERR_INVALID_OPCODE_BEFORE_UPDATE /* iSCSI connection error - invalid PDU opcode before update ramrod (Option 2 only) */,
955 ISCSI_CONN_ERROR_UNVALID_NOPIN_DSL /* iSCSI connection error - NOPIN dsl > 0 and ITT = 0xffffffff (Initiator only) */,
956 ISCSI_CONN_ERROR_PROTOCOL_ERR_R2T_CARRIES_NO_DATA /* iSCSI connection error - R2T dsl > 0 (Initiator only) */,
957 ISCSI_CONN_ERROR_PROTOCOL_ERR_DATA_SN /* iSCSI connection error - DATA-SN error */,
958 ISCSI_CONN_ERROR_PROTOCOL_ERR_DATA_IN_TTT /* iSCSI connection error - DATA-IN TTT error (Initiator only) */,
959 ISCSI_CONN_ERROR_PROTOCOL_ERR_DATA_OUT_ITT /* iSCSI connection error - DATA-OUT ITT error (Target only) */,
960 ISCSI_CONN_ERROR_PROTOCOL_ERR_R2T_TTT /* iSCSI connection error - R2T TTT error (Initiator only) */,
961 ISCSI_CONN_ERROR_PROTOCOL_ERR_R2T_BUFFER_OFFSET /* iSCSI connection error - R2T buffer offset error (Initiator only) */,
962 ISCSI_CONN_ERROR_PROTOCOL_ERR_BUFFER_OFFSET_OOO /* iSCSI connection error - DATA PDU buffer offset error */,
963 ISCSI_CONN_ERROR_PROTOCOL_ERR_R2T_SN /* iSCSI connection error - R2T SN error (Initiator only) */,
964 ISCSI_CONN_ERROR_PROTOCOL_ERR_DESIRED_DATA_TRNS_LEN_0 /* iSCSI connection error - R2T desired data transfer length = 0 (Initiator only) */,
965 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) */,
966 ISCSI_CONN_ERROR_PROTOCOL_ERR_DESIRED_DATA_TRNS_LEN_2 /* iSCSI connection error - R2T desired data transfer length + buffer offset > task size (Initiator only) */,
967 ISCSI_CONN_ERROR_PROTOCOL_ERR_LUN /* iSCSI connection error - R2T unvalid LUN (Initiator only) */,
968 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) */,
969 ISCSI_CONN_ERROR_PROTOCOL_ERR_F_BIT_ZERO_S_BIT_ONE /* iSCSI connection error - S-bit and final bit = 1 (Initiator only) */,
970 ISCSI_CONN_ERROR_PROTOCOL_ERR_EXP_STAT_SN /* iSCSI connection error - STAT SN error (Initiator only) */,
971 ISCSI_CONN_ERROR_PROTOCOL_ERR_DSL_NOT_ZERO /* iSCSI connection error - TMF or LOGOUT PDUs dsl > 0 (Initiator only) */,
972 ISCSI_CONN_ERROR_PROTOCOL_ERR_INVALID_DSL /* iSCSI connection error - CMD PDU dsl>0 while immediate data is disabled (Target only) */,
973 ISCSI_CONN_ERROR_PROTOCOL_ERR_DATA_SEG_LEN_TOO_BIG /* iSCSI connection error - Data In overrun (Initiator only) */,
974 ISCSI_CONN_ERROR_PROTOCOL_ERR_OUTSTANDING_R2T_COUNT /* iSCSI connection error - >1 outstanding R2T (Initiator only) */,
975 ISCSI_CONN_ERROR_PROTOCOL_ERR_DIF_TX /* iSCSI connection error - DIF Tx error + DIF error drop is enabled (Target only) */,
976 ISCSI_CONN_ERROR_SENSE_DATA_LENGTH /* iSCSI connection error - Sense data length > 256 (Initiator only) */,
977 ISCSI_CONN_ERROR_DATA_PLACEMENT_ERROR /* iSCSI connection error - Data placement error */,
978 ISCSI_CONN_ERROR_INVALID_ITT /* iSCSI connection error - Invalid ITT (Target Only) */,
979 ISCSI_ERROR_UNKNOWN /* iSCSI connection error */,
980 MAX_ISCSI_ERROR_TYPES
993 * iSCSI Ramrod Command IDs
995 enum iscsi_ramrod_cmd_id
997 ISCSI_RAMROD_CMD_ID_UNUSED=0,
998 ISCSI_RAMROD_CMD_ID_INIT_FUNC=1 /* iSCSI function init Ramrod */,
999 ISCSI_RAMROD_CMD_ID_DESTROY_FUNC=2 /* iSCSI function destroy Ramrod */,
1000 ISCSI_RAMROD_CMD_ID_OFFLOAD_CONN=3 /* iSCSI connection offload Ramrod */,
1001 ISCSI_RAMROD_CMD_ID_UPDATE_CONN=4 /* iSCSI connection update Ramrod */,
1002 ISCSI_RAMROD_CMD_ID_TERMINATION_CONN=5 /* iSCSI connection offload Ramrod. Command ID known only to FW and VBD */,
1003 ISCSI_RAMROD_CMD_ID_CLEAR_SQ=6 /* iSCSI connection clear-sq ramrod. */,
1004 ISCSI_RAMROD_CMD_ID_MAC_UPDATE=7 /* iSCSI connection update MAC address ramrod. */,
1005 MAX_ISCSI_RAMROD_CMD_ID
1012 #define ISCSI_REG1_NUM_SGES_MASK 0xF /* Written to R2tQE */
1013 #define ISCSI_REG1_NUM_SGES_SHIFT 0
1014 #define ISCSI_REG1_RESERVED1_MASK 0xFFFFFFF /* reserved */
1015 #define ISCSI_REG1_RESERVED1_SHIFT 4
1022 * Union of data/r2t sequence number
1026 __le16 data_sn /* data-in sequence number */;
1027 __le16 r2t_sn /* r2t pdu sequence number */;
1033 * ISCSI connection termination request
1035 struct iscsi_spe_conn_mac_update
1037 struct iscsi_slow_path_hdr hdr /* spe message header. */;
1038 __le16 conn_id /* ISCSI Connection ID. */;
1039 __le32 fw_cid /* Context ID (cid) of the connection. */;
1040 __le16 remote_mac_addr_lo /* new remote mac address lo */;
1041 __le16 remote_mac_addr_mid /* new remote mac address mid */;
1042 __le16 remote_mac_addr_hi /* new remote mac address hi */;
1048 * ISCSI and TCP connection(Option 1) offload params passed by driver to FW in ISCSI offload ramrod
1050 struct iscsi_spe_conn_offload
1052 struct iscsi_slow_path_hdr hdr /* spe message header. */;
1053 __le16 conn_id /* ISCSI Connection ID. */;
1055 struct iscsi_conn_offload_params iscsi /* iSCSI session offload params */;
1056 struct tcp_offload_params tcp /* iSCSI session offload params */;
1061 * ISCSI and TCP connection(Option 2) offload params passed by driver to FW in ISCSI offload ramrod
1063 struct iscsi_spe_conn_offload_option2
1065 struct iscsi_slow_path_hdr hdr /* spe message header. */;
1066 __le16 conn_id /* ISCSI Connection ID. */;
1068 struct iscsi_conn_offload_params iscsi /* iSCSI session offload params */;
1069 struct tcp_offload_params_opt2 tcp /* iSCSI session offload params */;
1074 * ISCSI connection termination request
1076 struct iscsi_spe_conn_termination
1078 struct iscsi_slow_path_hdr hdr /* spe message header. */;
1079 __le16 conn_id /* ISCSI Connection ID. */;
1080 __le32 fw_cid /* Context ID (cid) of the connection. */;
1081 u8 abortive /* Mark termination as abort(reset) flow */;
1083 struct regpair queue_cnts_addr /* cmdq and unsolicited counters termination params */;
1084 struct regpair query_params_addr /* query_params_ptr */;
1089 * iSCSI firmware function destroy parameters
1091 struct iscsi_spe_func_dstry
1093 struct iscsi_slow_path_hdr hdr /* spe message header. */;
1100 * iSCSI firmware function init parameters
1102 struct iscsi_spe_func_init
1104 struct iscsi_slow_path_hdr hdr /* spe message header. */;
1105 __le16 half_way_close_timeout /* Half Way Close Timeout in Option 2 Close */;
1106 u8 num_sq_pages_in_ring /* Number of entries in the SQ PBL. Provided by driver at function init spe */;
1107 u8 num_r2tq_pages_in_ring /* Number of entries in the R2TQ PBL. Provided by driver at function init spe */;
1108 u8 num_uhq_pages_in_ring /* Number of entries in the uHQ PBL (xHQ entries is X2). Provided by driver at function init spe */;
1109 u8 ll2_rx_queue_id /* Queue ID of the Light-L2 Rx Queue */;
1110 u8 ooo_enable /* Enable Out Of Order mode (enable = 1) */;
1111 struct iscsi_debug_modes debug_mode /* Use iscsi_debug_mode flags */;
1116 struct scsi_init_func_params func_params /* Common SCSI init params passed by driver to FW in function init ramrod */;
1117 struct scsi_init_func_queues q_params /* SCSI RQ/CQ firmware function init parameters */;
1122 * The iscsi storm task context of Ystorm
1124 struct ystorm_iscsi_task_state
1126 struct scsi_cached_sges data_desc;
1127 struct scsi_sgl_params sgl_params;
1128 __le32 exp_r2t_sn /* Initiator mode - Expected R2T PDU index in sequence. [variable, initialized 0] */;
1129 __le32 buffer_offset /* Payload data offset */;
1130 union iscsi_seq_num seq_num /* PDU index in sequence */;
1131 struct iscsi_dif_flags dif_flags /* Dif flags */;
1133 #define YSTORM_ISCSI_TASK_STATE_LOCAL_COMP_MASK 0x1 /* local_completion */
1134 #define YSTORM_ISCSI_TASK_STATE_LOCAL_COMP_SHIFT 0
1135 #define YSTORM_ISCSI_TASK_STATE_SLOW_IO_MASK 0x1 /* Equals 1 if SGL is predicted and 0 otherwise. */
1136 #define YSTORM_ISCSI_TASK_STATE_SLOW_IO_SHIFT 1
1137 #define YSTORM_ISCSI_TASK_STATE_RESERVED0_MASK 0x3F
1138 #define YSTORM_ISCSI_TASK_STATE_RESERVED0_SHIFT 2
1142 * The iscsi storm task context of Ystorm
1144 struct ystorm_iscsi_task_rxmit_opt
1146 __le32 fast_rxmit_sge_offset /* SGE offset from which to continue dummy-read or start fast retransmit */;
1147 __le32 scan_start_buffer_offset /* Starting buffer offset of next retransmit SGL scan */;
1148 __le32 fast_rxmit_buffer_offset /* Buffer offset from which to continue dummy-read or start fast retransmit */;
1149 u8 scan_start_sgl_index /* Starting SGL index of next retransmit SGL scan */;
1150 u8 fast_rxmit_sgl_index /* SGL index from which to continue dummy-read or start fast retransmit */;
1151 __le16 reserved /* reserved */;
1155 * The iscsi storm task context of Ystorm
1157 struct ystorm_iscsi_task_st_ctx
1159 struct ystorm_iscsi_task_state state /* iSCSI task parameters and state */;
1160 struct ystorm_iscsi_task_rxmit_opt rxmit_opt /* iSCSI retransmit optimizations parameters */;
1161 union iscsi_task_hdr pdu_hdr /* PDU header - [constant initialized] */;
1164 struct e4_ystorm_iscsi_task_ag_ctx
1166 u8 reserved /* cdu_validation */;
1167 u8 byte1 /* state */;
1168 __le16 word0 /* icid */;
1170 #define E4_YSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_MASK 0xF /* connection_type */
1171 #define E4_YSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_SHIFT 0
1172 #define E4_YSTORM_ISCSI_TASK_AG_CTX_BIT0_MASK 0x1 /* exist_in_qm0 */
1173 #define E4_YSTORM_ISCSI_TASK_AG_CTX_BIT0_SHIFT 4
1174 #define E4_YSTORM_ISCSI_TASK_AG_CTX_BIT1_MASK 0x1 /* exist_in_qm1 */
1175 #define E4_YSTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT 5
1176 #define E4_YSTORM_ISCSI_TASK_AG_CTX_VALID_MASK 0x1 /* bit2 */
1177 #define E4_YSTORM_ISCSI_TASK_AG_CTX_VALID_SHIFT 6
1178 #define E4_YSTORM_ISCSI_TASK_AG_CTX_BIT3_MASK 0x1 /* bit3 */
1179 #define E4_YSTORM_ISCSI_TASK_AG_CTX_BIT3_SHIFT 7
1181 #define E4_YSTORM_ISCSI_TASK_AG_CTX_CF0_MASK 0x3 /* cf0 */
1182 #define E4_YSTORM_ISCSI_TASK_AG_CTX_CF0_SHIFT 0
1183 #define E4_YSTORM_ISCSI_TASK_AG_CTX_CF1_MASK 0x3 /* cf1 */
1184 #define E4_YSTORM_ISCSI_TASK_AG_CTX_CF1_SHIFT 2
1185 #define E4_YSTORM_ISCSI_TASK_AG_CTX_CF2SPECIAL_MASK 0x3 /* cf2special */
1186 #define E4_YSTORM_ISCSI_TASK_AG_CTX_CF2SPECIAL_SHIFT 4
1187 #define E4_YSTORM_ISCSI_TASK_AG_CTX_CF0EN_MASK 0x1 /* cf0en */
1188 #define E4_YSTORM_ISCSI_TASK_AG_CTX_CF0EN_SHIFT 6
1189 #define E4_YSTORM_ISCSI_TASK_AG_CTX_CF1EN_MASK 0x1 /* cf1en */
1190 #define E4_YSTORM_ISCSI_TASK_AG_CTX_CF1EN_SHIFT 7
1192 #define E4_YSTORM_ISCSI_TASK_AG_CTX_BIT4_MASK 0x1 /* bit4 */
1193 #define E4_YSTORM_ISCSI_TASK_AG_CTX_BIT4_SHIFT 0
1194 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE0EN_MASK 0x1 /* rule0en */
1195 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE0EN_SHIFT 1
1196 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1 /* rule1en */
1197 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 2
1198 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE2EN_MASK 0x1 /* rule2en */
1199 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE2EN_SHIFT 3
1200 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1 /* rule3en */
1201 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 4
1202 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1 /* rule4en */
1203 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 5
1204 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1 /* rule5en */
1205 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 6
1206 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE6EN_MASK 0x1 /* rule6en */
1207 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE6EN_SHIFT 7
1208 u8 byte2 /* byte2 */;
1209 __le32 TTT /* reg0 */;
1210 u8 byte3 /* byte3 */;
1211 u8 byte4 /* byte4 */;
1212 __le16 word1 /* word1 */;
1215 struct e4_mstorm_iscsi_task_ag_ctx
1217 u8 cdu_validation /* cdu_validation */;
1218 u8 byte1 /* state */;
1219 __le16 task_cid /* icid */;
1221 #define E4_MSTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_MASK 0xF /* connection_type */
1222 #define E4_MSTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_SHIFT 0
1223 #define E4_MSTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_MASK 0x1 /* exist_in_qm0 */
1224 #define E4_MSTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_SHIFT 4
1225 #define E4_MSTORM_ISCSI_TASK_AG_CTX_BIT1_MASK 0x1 /* exist_in_qm1 */
1226 #define E4_MSTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT 5
1227 #define E4_MSTORM_ISCSI_TASK_AG_CTX_VALID_MASK 0x1 /* bit2 */
1228 #define E4_MSTORM_ISCSI_TASK_AG_CTX_VALID_SHIFT 6
1229 #define E4_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_FLAG_MASK 0x1 /* bit3 */
1230 #define E4_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_FLAG_SHIFT 7
1232 #define E4_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_MASK 0x3 /* cf0 */
1233 #define E4_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_SHIFT 0
1234 #define E4_MSTORM_ISCSI_TASK_AG_CTX_CF1_MASK 0x3 /* cf1 */
1235 #define E4_MSTORM_ISCSI_TASK_AG_CTX_CF1_SHIFT 2
1236 #define E4_MSTORM_ISCSI_TASK_AG_CTX_CF2_MASK 0x3 /* cf2 */
1237 #define E4_MSTORM_ISCSI_TASK_AG_CTX_CF2_SHIFT 4
1238 #define E4_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_EN_MASK 0x1 /* cf0en */
1239 #define E4_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_EN_SHIFT 6
1240 #define E4_MSTORM_ISCSI_TASK_AG_CTX_CF1EN_MASK 0x1 /* cf1en */
1241 #define E4_MSTORM_ISCSI_TASK_AG_CTX_CF1EN_SHIFT 7
1243 #define E4_MSTORM_ISCSI_TASK_AG_CTX_CF2EN_MASK 0x1 /* cf2en */
1244 #define E4_MSTORM_ISCSI_TASK_AG_CTX_CF2EN_SHIFT 0
1245 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE0EN_MASK 0x1 /* rule0en */
1246 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE0EN_SHIFT 1
1247 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1 /* rule1en */
1248 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 2
1249 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE2EN_MASK 0x1 /* rule2en */
1250 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE2EN_SHIFT 3
1251 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1 /* rule3en */
1252 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 4
1253 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1 /* rule4en */
1254 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 5
1255 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1 /* rule5en */
1256 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 6
1257 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE6EN_MASK 0x1 /* rule6en */
1258 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE6EN_SHIFT 7
1259 u8 byte2 /* byte2 */;
1260 __le32 reg0 /* reg0 */;
1261 u8 byte3 /* byte3 */;
1262 u8 byte4 /* byte4 */;
1263 __le16 word1 /* word1 */;
1266 struct e4_ustorm_iscsi_task_ag_ctx
1268 u8 reserved /* cdu_validation */;
1269 u8 state /* state */;
1270 __le16 icid /* icid */;
1272 #define E4_USTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_MASK 0xF /* connection_type */
1273 #define E4_USTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_SHIFT 0
1274 #define E4_USTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_MASK 0x1 /* exist_in_qm0 */
1275 #define E4_USTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_SHIFT 4
1276 #define E4_USTORM_ISCSI_TASK_AG_CTX_BIT1_MASK 0x1 /* exist_in_qm1 */
1277 #define E4_USTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT 5
1278 #define E4_USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_MASK 0x3 /* timer0cf */
1279 #define E4_USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_SHIFT 6
1281 #define E4_USTORM_ISCSI_TASK_AG_CTX_RESERVED1_MASK 0x3 /* timer1cf */
1282 #define E4_USTORM_ISCSI_TASK_AG_CTX_RESERVED1_SHIFT 0
1283 #define E4_USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_MASK 0x3 /* timer2cf */
1284 #define E4_USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_SHIFT 2
1285 #define E4_USTORM_ISCSI_TASK_AG_CTX_CF3_MASK 0x3 /* timer_stop_all */
1286 #define E4_USTORM_ISCSI_TASK_AG_CTX_CF3_SHIFT 4
1287 #define E4_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_MASK 0x3 /* cf4 */
1288 #define E4_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_SHIFT 6
1290 #define E4_USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_EN_MASK 0x1 /* cf0en */
1291 #define E4_USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_EN_SHIFT 0
1292 #define E4_USTORM_ISCSI_TASK_AG_CTX_DISABLE_DATA_ACKED_MASK 0x1 /* cf1en */
1293 #define E4_USTORM_ISCSI_TASK_AG_CTX_DISABLE_DATA_ACKED_SHIFT 1
1294 #define E4_USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_EN_MASK 0x1 /* cf2en */
1295 #define E4_USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_EN_SHIFT 2
1296 #define E4_USTORM_ISCSI_TASK_AG_CTX_CF3EN_MASK 0x1 /* cf3en */
1297 #define E4_USTORM_ISCSI_TASK_AG_CTX_CF3EN_SHIFT 3
1298 #define E4_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_EN_MASK 0x1 /* cf4en */
1299 #define E4_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_EN_SHIFT 4
1300 #define E4_USTORM_ISCSI_TASK_AG_CTX_CMP_DATA_TOTAL_EXP_EN_MASK 0x1 /* rule0en */
1301 #define E4_USTORM_ISCSI_TASK_AG_CTX_CMP_DATA_TOTAL_EXP_EN_SHIFT 5
1302 #define E4_USTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1 /* rule1en */
1303 #define E4_USTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 6
1304 #define E4_USTORM_ISCSI_TASK_AG_CTX_CMP_CONT_RCV_EXP_EN_MASK 0x1 /* rule2en */
1305 #define E4_USTORM_ISCSI_TASK_AG_CTX_CMP_CONT_RCV_EXP_EN_SHIFT 7
1307 #define E4_USTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1 /* rule3en */
1308 #define E4_USTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 0
1309 #define E4_USTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1 /* rule4en */
1310 #define E4_USTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 1
1311 #define E4_USTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1 /* rule5en */
1312 #define E4_USTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 2
1313 #define E4_USTORM_ISCSI_TASK_AG_CTX_RULE6EN_MASK 0x1 /* rule6en */
1314 #define E4_USTORM_ISCSI_TASK_AG_CTX_RULE6EN_SHIFT 3
1315 #define E4_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_TYPE_MASK 0xF /* nibble1 */
1316 #define E4_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_TYPE_SHIFT 4
1317 __le32 dif_err_intervals /* reg0 */;
1318 __le32 dif_error_1st_interval /* reg1 */;
1319 __le32 rcv_cont_len /* reg2 */;
1320 __le32 exp_cont_len /* reg3 */;
1321 __le32 total_data_acked /* reg4 */;
1322 __le32 exp_data_acked /* reg5 */;
1323 u8 next_tid_valid /* byte2 */;
1324 u8 byte3 /* byte3 */;
1325 __le16 word1 /* word1 */;
1326 __le16 next_tid /* word2 */;
1327 __le16 word3 /* word3 */;
1328 __le32 hdr_residual_count /* reg6 */;
1329 __le32 exp_r2t_sn /* reg7 */;
1333 * The iscsi storm task context of Mstorm
1335 struct mstorm_iscsi_task_st_ctx
1337 struct scsi_cached_sges data_desc /* Union of Data SGL / cached sge */;
1338 struct scsi_sgl_params sgl_params;
1339 __le32 rem_task_size /* Remaining task size, used for placement verification */;
1340 __le32 data_buffer_offset /* Buffer offset */;
1341 u8 task_type /* Task type, (use: iscsi_task_type enum) */;
1342 struct iscsi_dif_flags dif_flags /* sizes of host/peer protection intervals + protection log interval */;
1343 u8 reserved0[2] /* reserved0 */;
1344 struct regpair sense_db /* Pointer to sense data buffer */;
1345 __le32 expected_itt /* ITT - for target mode validations */;
1346 __le32 reserved1 /* reserved1 */;
1350 * The iscsi storm task context of Ustorm
1352 struct ustorm_iscsi_task_st_ctx
1354 __le32 rem_rcv_len /* Remaining data to be received in bytes. Used in validations */;
1355 __le32 exp_data_transfer_len /* iSCSI Initiator - The size of the transmitted task, iSCSI Target - the size of the Rx continuation */;
1356 __le32 exp_data_sn /* Expected data SN */;
1357 struct regpair lun /* LUN */;
1358 struct iscsi_reg1 reg1;
1360 #define USTORM_ISCSI_TASK_ST_CTX_AHS_EXIST_MASK 0x1 /* Initiator Mode - Mark AHS exist */
1361 #define USTORM_ISCSI_TASK_ST_CTX_AHS_EXIST_SHIFT 0
1362 #define USTORM_ISCSI_TASK_ST_CTX_RESERVED1_MASK 0x7F
1363 #define USTORM_ISCSI_TASK_ST_CTX_RESERVED1_SHIFT 1
1364 struct iscsi_dif_flags dif_flags /* Dif flags (written to R2T WQE) */;
1370 u8 task_type /* Task Type */;
1372 #define USTORM_ISCSI_TASK_ST_CTX_DATA_DIGEST_ERROR_MASK 0x1 /* Mark task with data digest error (1 bit) */
1373 #define USTORM_ISCSI_TASK_ST_CTX_DATA_DIGEST_ERROR_SHIFT 0
1374 #define USTORM_ISCSI_TASK_ST_CTX_DATA_TRUNCATED_ERROR_MASK 0x1 /* Target Mode - Mark middle task error, data truncated */
1375 #define USTORM_ISCSI_TASK_ST_CTX_DATA_TRUNCATED_ERROR_SHIFT 1
1376 #define USTORM_ISCSI_TASK_ST_CTX_UNDER_RUN_ERROR_MASK 0x1
1377 #define USTORM_ISCSI_TASK_ST_CTX_UNDER_RUN_ERROR_SHIFT 2
1378 #define USTORM_ISCSI_TASK_ST_CTX_RESERVED8_MASK 0x1F
1379 #define USTORM_ISCSI_TASK_ST_CTX_RESERVED8_SHIFT 3
1381 #define USTORM_ISCSI_TASK_ST_CTX_CQE_WRITE_MASK 0x3 /* mark task cqe write (for cleanup flow) */
1382 #define USTORM_ISCSI_TASK_ST_CTX_CQE_WRITE_SHIFT 0
1383 #define USTORM_ISCSI_TASK_ST_CTX_LOCAL_COMP_MASK 0x1 /* local completion bit */
1384 #define USTORM_ISCSI_TASK_ST_CTX_LOCAL_COMP_SHIFT 2
1385 #define USTORM_ISCSI_TASK_ST_CTX_Q0_R2TQE_WRITE_MASK 0x1 /* write R2TQE from Q0 flow */
1386 #define USTORM_ISCSI_TASK_ST_CTX_Q0_R2TQE_WRITE_SHIFT 3
1387 #define USTORM_ISCSI_TASK_ST_CTX_TOTAL_DATA_ACKED_DONE_MASK 0x1 /* Mark total data acked or disabled */
1388 #define USTORM_ISCSI_TASK_ST_CTX_TOTAL_DATA_ACKED_DONE_SHIFT 4
1389 #define USTORM_ISCSI_TASK_ST_CTX_HQ_SCANNED_DONE_MASK 0x1 /* Mark HQ scanned or disabled */
1390 #define USTORM_ISCSI_TASK_ST_CTX_HQ_SCANNED_DONE_SHIFT 5
1391 #define USTORM_ISCSI_TASK_ST_CTX_R2T2RECV_DONE_MASK 0x1 /* Mark HQ scanned or disabled */
1392 #define USTORM_ISCSI_TASK_ST_CTX_R2T2RECV_DONE_SHIFT 6
1393 #define USTORM_ISCSI_TASK_ST_CTX_RESERVED0_MASK 0x1
1394 #define USTORM_ISCSI_TASK_ST_CTX_RESERVED0_SHIFT 7
1395 u8 cq_rss_number /* Task CQ_RSS number 0.63 */;
1399 * iscsi task context
1401 struct iscsi_task_context
1403 struct ystorm_iscsi_task_st_ctx ystorm_st_context /* ystorm storm context */;
1404 struct e4_ystorm_iscsi_task_ag_ctx ystorm_ag_context /* ystorm aggregative context */;
1405 struct regpair ystorm_ag_padding[2] /* padding */;
1406 struct tdif_task_context tdif_context /* tdif context */;
1407 struct e4_mstorm_iscsi_task_ag_ctx mstorm_ag_context /* mstorm aggregative context */;
1408 struct regpair mstorm_ag_padding[2] /* padding */;
1409 struct e4_ustorm_iscsi_task_ag_ctx ustorm_ag_context /* ustorm aggregative context */;
1410 struct mstorm_iscsi_task_st_ctx mstorm_st_context /* mstorm storm context */;
1411 struct ustorm_iscsi_task_st_ctx ustorm_st_context /* ustorm storm context */;
1412 struct rdif_task_context rdif_context /* rdif context */;
1420 enum iscsi_task_type
1422 ISCSI_TASK_TYPE_INITIATOR_WRITE,
1423 ISCSI_TASK_TYPE_INITIATOR_READ,
1424 ISCSI_TASK_TYPE_MIDPATH,
1425 ISCSI_TASK_TYPE_UNSOLIC,
1426 ISCSI_TASK_TYPE_EXCHCLEANUP,
1427 ISCSI_TASK_TYPE_IRRELEVANT,
1428 ISCSI_TASK_TYPE_TARGET_WRITE,
1429 ISCSI_TASK_TYPE_TARGET_READ,
1430 ISCSI_TASK_TYPE_TARGET_RESPONSE,
1431 ISCSI_TASK_TYPE_LOGIN_RESPONSE,
1441 * iSCSI DesiredDataTransferLength/ttt union
1443 union iscsi_ttt_txlen_union
1445 __le32 desired_tx_len /* desired data transfer length */;
1446 __le32 ttt /* target transfer tag */;
1456 #define ISCSI_UHQE_PDU_PAYLOAD_LEN_MASK 0xFFFFF /* iSCSI payload (doesnt include padding or digest) or AHS length */
1457 #define ISCSI_UHQE_PDU_PAYLOAD_LEN_SHIFT 0
1458 #define ISCSI_UHQE_LOCAL_COMP_MASK 0x1 /* local compleiton flag */
1459 #define ISCSI_UHQE_LOCAL_COMP_SHIFT 20
1460 #define ISCSI_UHQE_TOGGLE_BIT_MASK 0x1 /* toggle bit to protect from uHQ full */
1461 #define ISCSI_UHQE_TOGGLE_BIT_SHIFT 21
1462 #define ISCSI_UHQE_PURE_PAYLOAD_MASK 0x1 /* indicates whether pdu_payload_len contains pure payload length. if not, pdu_payload_len is AHS length */
1463 #define ISCSI_UHQE_PURE_PAYLOAD_SHIFT 22
1464 #define ISCSI_UHQE_LOGIN_RESPONSE_PDU_MASK 0x1 /* indicates login pdu */
1465 #define ISCSI_UHQE_LOGIN_RESPONSE_PDU_SHIFT 23
1466 #define ISCSI_UHQE_TASK_ID_HI_MASK 0xFF /* most significant byte of task_id */
1467 #define ISCSI_UHQE_TASK_ID_HI_SHIFT 24
1469 #define ISCSI_UHQE_BUFFER_OFFSET_MASK 0xFFFFFF /* absolute offset in task */
1470 #define ISCSI_UHQE_BUFFER_OFFSET_SHIFT 0
1471 #define ISCSI_UHQE_TASK_ID_LO_MASK 0xFF /* least significant byte of task_id */
1472 #define ISCSI_UHQE_TASK_ID_LO_SHIFT 24
1481 __le16 task_id /* The task identifier (itt) includes all the relevant information required for the task processing */;
1483 #define ISCSI_WQE_WQE_TYPE_MASK 0x7 /* Wqe type [use iscsi_wqe_type] */
1484 #define ISCSI_WQE_WQE_TYPE_SHIFT 0
1485 #define ISCSI_WQE_NUM_SGES_MASK 0xF /* The driver will give a hint about sizes of SGEs for better credits evaluation at Xstorm */
1486 #define ISCSI_WQE_NUM_SGES_SHIFT 3
1487 #define ISCSI_WQE_RESPONSE_MASK 0x1 /* 1 if this Wqe triggers a response and advances stat_sn, 0 otherwise */
1488 #define ISCSI_WQE_RESPONSE_SHIFT 7
1489 struct iscsi_dif_flags prot_flags /* Task data-integrity flags (protection) */;
1490 __le32 contlen_cdbsize;
1491 #define ISCSI_WQE_CONT_LEN_MASK 0xFFFFFF /* expected/desired data transfer length */
1492 #define ISCSI_WQE_CONT_LEN_SHIFT 0
1493 #define ISCSI_WQE_CDB_SIZE_MASK 0xFF /* Initiator mode only: equals SCSI command CDB size if extended CDB is used, otherwise equals zero. */
1494 #define ISCSI_WQE_CDB_SIZE_SHIFT 24
1503 ISCSI_WQE_TYPE_NORMAL /* iSCSI WQE type normal. excluding status bit in target mode. */,
1504 ISCSI_WQE_TYPE_TASK_CLEANUP /* iSCSI WQE type task cleanup */,
1505 ISCSI_WQE_TYPE_MIDDLE_PATH /* iSCSI WQE type middle path */,
1506 ISCSI_WQE_TYPE_LOGIN /* iSCSI WQE type login */,
1507 ISCSI_WQE_TYPE_FIRST_R2T_CONT /* iSCSI WQE type First Write Continuation (Target) */,
1508 ISCSI_WQE_TYPE_NONFIRST_R2T_CONT /* iSCSI WQE type Non-First Write Continuation (Target) */,
1509 ISCSI_WQE_TYPE_RESPONSE /* iSCSI WQE type SCSI response */,
1519 union iscsi_ttt_txlen_union ttt_or_txlen /* iSCSI DesiredDataTransferLength/ttt union */;
1520 __le32 exp_stat_sn /* expected StatSn */;
1521 struct iscsi_dif_flags prot_flags /* Task data-integrity flags (protection) */;
1522 u8 total_ahs_length /* Initiator mode only: Total AHS Length. greater than zero if and only if PDU is SCSI command and CDB > 16 */;
1523 u8 opcode /* Type opcode for command PDU */;
1525 #define ISCSI_XHQE_FINAL_MASK 0x1 /* The Final(F) for this PDU */
1526 #define ISCSI_XHQE_FINAL_SHIFT 0
1527 #define ISCSI_XHQE_STATUS_BIT_MASK 0x1 /* Whether this PDU is Data-In PDU with status_bit = 1 */
1528 #define ISCSI_XHQE_STATUS_BIT_SHIFT 1
1529 #define ISCSI_XHQE_NUM_SGES_MASK 0xF /* If Predicted IO equals Min(8, number of SGEs in SGL), otherwise equals 0 */
1530 #define ISCSI_XHQE_NUM_SGES_SHIFT 2
1531 #define ISCSI_XHQE_RESERVED0_MASK 0x3 /* reserved */
1532 #define ISCSI_XHQE_RESERVED0_SHIFT 6
1533 union iscsi_seq_num seq_num /* R2T/DataSN sequence number */;
1539 * Per PF iSCSI receive path statistics - mStorm RAM structure
1541 struct mstorm_iscsi_stats_drv
1543 struct regpair iscsi_rx_dropped_PDUs_task_not_valid /* Number of Rx silently dropped PDUs due to task not valid */;
1549 * Per PF iSCSI transmit path statistics - pStorm RAM structure
1551 struct pstorm_iscsi_stats_drv
1553 struct regpair iscsi_tx_bytes_cnt /* Counts the number of tx bytes that were transmitted */;
1554 struct regpair iscsi_tx_packet_cnt /* Counts the number of tx packets that were transmitted */;
1559 * Per PF iSCSI receive path statistics - tStorm RAM structure
1561 struct tstorm_iscsi_stats_drv
1563 struct regpair iscsi_rx_bytes_cnt /* Counts the number of rx bytes that were received */;
1564 struct regpair iscsi_rx_packet_cnt /* Counts the number of rx packets that were received */;
1565 struct regpair iscsi_rx_new_ooo_isle_events_cnt /* Counts the number of new out-of-order isle event */;
1566 __le32 iscsi_cmdq_threshold_cnt /* Counts the number of times elements in cmdQ reached threshold */;
1567 __le32 iscsi_rq_threshold_cnt /* Counts the number of times elements in RQQ reached threshold */;
1568 __le32 iscsi_immq_threshold_cnt /* Counts the number of times elements in immQ reached threshold */;
1573 * Per PF iSCSI receive path statistics - uStorm RAM structure
1575 struct ustorm_iscsi_stats_drv
1577 struct regpair iscsi_rx_data_pdu_cnt /* Number of data PDUs that were received */;
1578 struct regpair iscsi_rx_r2t_pdu_cnt /* Number of R2T PDUs that were received */;
1579 struct regpair iscsi_rx_total_pdu_cnt /* Number of total PDUs that were received */;
1585 * Per PF iSCSI transmit path statistics - xStorm RAM structure
1587 struct xstorm_iscsi_stats_drv
1589 struct regpair iscsi_tx_go_to_slow_start_event_cnt /* Number of times slow start event occurred */;
1590 struct regpair iscsi_tx_fast_retransmit_event_cnt /* Number of times fast retransmit event occurred */;
1595 * Per PF iSCSI transmit path statistics - yStorm RAM structure
1597 struct ystorm_iscsi_stats_drv
1599 struct regpair iscsi_tx_data_pdu_cnt /* Number of data PDUs that were transmitted */;
1600 struct regpair iscsi_tx_r2t_pdu_cnt /* Number of R2T PDUs that were transmitted */;
1601 struct regpair iscsi_tx_total_pdu_cnt /* Number of total PDUs that were transmitted */;
1609 struct e4_tstorm_iscsi_task_ag_ctx
1611 u8 byte0 /* cdu_validation */;
1612 u8 byte1 /* state */;
1613 __le16 word0 /* icid */;
1615 #define E4_TSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_MASK 0xF /* connection_type */
1616 #define E4_TSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_SHIFT 0
1617 #define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT0_MASK 0x1 /* exist_in_qm0 */
1618 #define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT0_SHIFT 4
1619 #define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT1_MASK 0x1 /* exist_in_qm1 */
1620 #define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT 5
1621 #define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT2_MASK 0x1 /* bit2 */
1622 #define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT2_SHIFT 6
1623 #define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT3_MASK 0x1 /* bit3 */
1624 #define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT3_SHIFT 7
1626 #define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT4_MASK 0x1 /* bit4 */
1627 #define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT4_SHIFT 0
1628 #define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT5_MASK 0x1 /* bit5 */
1629 #define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT5_SHIFT 1
1630 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF0_MASK 0x3 /* timer0cf */
1631 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF0_SHIFT 2
1632 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF1_MASK 0x3 /* timer1cf */
1633 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF1_SHIFT 4
1634 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF2_MASK 0x3 /* timer2cf */
1635 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF2_SHIFT 6
1637 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF3_MASK 0x3 /* timer_stop_all */
1638 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF3_SHIFT 0
1639 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF4_MASK 0x3 /* cf4 */
1640 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF4_SHIFT 2
1641 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF5_MASK 0x3 /* cf5 */
1642 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF5_SHIFT 4
1643 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF6_MASK 0x3 /* cf6 */
1644 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF6_SHIFT 6
1646 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF7_MASK 0x3 /* cf7 */
1647 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF7_SHIFT 0
1648 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF0EN_MASK 0x1 /* cf0en */
1649 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF0EN_SHIFT 2
1650 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF1EN_MASK 0x1 /* cf1en */
1651 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF1EN_SHIFT 3
1652 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF2EN_MASK 0x1 /* cf2en */
1653 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF2EN_SHIFT 4
1654 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF3EN_MASK 0x1 /* cf3en */
1655 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF3EN_SHIFT 5
1656 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF4EN_MASK 0x1 /* cf4en */
1657 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF4EN_SHIFT 6
1658 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF5EN_MASK 0x1 /* cf5en */
1659 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF5EN_SHIFT 7
1661 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF6EN_MASK 0x1 /* cf6en */
1662 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF6EN_SHIFT 0
1663 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF7EN_MASK 0x1 /* cf7en */
1664 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF7EN_SHIFT 1
1665 #define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE0EN_MASK 0x1 /* rule0en */
1666 #define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE0EN_SHIFT 2
1667 #define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1 /* rule1en */
1668 #define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 3
1669 #define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE2EN_MASK 0x1 /* rule2en */
1670 #define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE2EN_SHIFT 4
1671 #define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1 /* rule3en */
1672 #define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 5
1673 #define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1 /* rule4en */
1674 #define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 6
1675 #define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1 /* rule5en */
1676 #define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 7
1677 u8 byte2 /* byte2 */;
1678 __le16 word1 /* word1 */;
1679 __le32 reg0 /* reg0 */;
1680 u8 byte3 /* byte3 */;
1681 u8 byte4 /* byte4 */;
1682 __le16 word2 /* word2 */;
1683 __le16 word3 /* word3 */;
1684 __le16 word4 /* word4 */;
1685 __le32 reg1 /* reg1 */;
1686 __le32 reg2 /* reg2 */;
1692 struct e5_mstorm_iscsi_task_ag_ctx
1694 u8 cdu_validation /* cdu_validation */;
1695 u8 byte1 /* state_and_core_id */;
1696 __le16 task_cid /* icid */;
1698 #define E5_MSTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_MASK 0xF /* connection_type */
1699 #define E5_MSTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_SHIFT 0
1700 #define E5_MSTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_MASK 0x1 /* exist_in_qm0 */
1701 #define E5_MSTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_SHIFT 4
1702 #define E5_MSTORM_ISCSI_TASK_AG_CTX_BIT1_MASK 0x1 /* exist_in_qm1 */
1703 #define E5_MSTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT 5
1704 #define E5_MSTORM_ISCSI_TASK_AG_CTX_VALID_MASK 0x1 /* bit2 */
1705 #define E5_MSTORM_ISCSI_TASK_AG_CTX_VALID_SHIFT 6
1706 #define E5_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_FLAG_MASK 0x1 /* bit3 */
1707 #define E5_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_FLAG_SHIFT 7
1709 #define E5_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_MASK 0x3 /* cf0 */
1710 #define E5_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_SHIFT 0
1711 #define E5_MSTORM_ISCSI_TASK_AG_CTX_CF1_MASK 0x3 /* cf1 */
1712 #define E5_MSTORM_ISCSI_TASK_AG_CTX_CF1_SHIFT 2
1713 #define E5_MSTORM_ISCSI_TASK_AG_CTX_CF2_MASK 0x3 /* cf2 */
1714 #define E5_MSTORM_ISCSI_TASK_AG_CTX_CF2_SHIFT 4
1715 #define E5_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_EN_MASK 0x1 /* cf0en */
1716 #define E5_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_EN_SHIFT 6
1717 #define E5_MSTORM_ISCSI_TASK_AG_CTX_CF1EN_MASK 0x1 /* cf1en */
1718 #define E5_MSTORM_ISCSI_TASK_AG_CTX_CF1EN_SHIFT 7
1720 #define E5_MSTORM_ISCSI_TASK_AG_CTX_CF2EN_MASK 0x1 /* cf2en */
1721 #define E5_MSTORM_ISCSI_TASK_AG_CTX_CF2EN_SHIFT 0
1722 #define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE0EN_MASK 0x1 /* rule0en */
1723 #define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE0EN_SHIFT 1
1724 #define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1 /* rule1en */
1725 #define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 2
1726 #define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE2EN_MASK 0x1 /* rule2en */
1727 #define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE2EN_SHIFT 3
1728 #define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1 /* rule3en */
1729 #define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 4
1730 #define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1 /* rule4en */
1731 #define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 5
1732 #define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1 /* rule5en */
1733 #define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 6
1734 #define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE6EN_MASK 0x1 /* rule6en */
1735 #define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE6EN_SHIFT 7
1737 #define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED1_MASK 0x1 /* bit4 */
1738 #define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED1_SHIFT 0
1739 #define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED2_MASK 0x3 /* cf3 */
1740 #define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED2_SHIFT 1
1741 #define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED3_MASK 0x3 /* cf4 */
1742 #define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED3_SHIFT 3
1743 #define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED4_MASK 0x1 /* cf3en */
1744 #define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED4_SHIFT 5
1745 #define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED5_MASK 0x1 /* cf4en */
1746 #define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED5_SHIFT 6
1747 #define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED6_MASK 0x1 /* rule7en */
1748 #define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED6_SHIFT 7
1749 __le32 reg0 /* reg0 */;
1750 u8 byte2 /* byte2 */;
1751 u8 byte3 /* byte3 */;
1752 u8 byte4 /* byte4 */;
1753 u8 e4_reserved7 /* byte5 */;
1757 struct e5_tstorm_iscsi_task_ag_ctx
1759 u8 byte0 /* cdu_validation */;
1760 u8 byte1 /* state_and_core_id */;
1761 __le16 word0 /* icid */;
1763 #define E5_TSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_MASK 0xF /* connection_type */
1764 #define E5_TSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_SHIFT 0
1765 #define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT0_MASK 0x1 /* exist_in_qm0 */
1766 #define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT0_SHIFT 4
1767 #define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT1_MASK 0x1 /* exist_in_qm1 */
1768 #define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT 5
1769 #define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT2_MASK 0x1 /* bit2 */
1770 #define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT2_SHIFT 6
1771 #define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT3_MASK 0x1 /* bit3 */
1772 #define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT3_SHIFT 7
1774 #define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT4_MASK 0x1 /* bit4 */
1775 #define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT4_SHIFT 0
1776 #define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT5_MASK 0x1 /* bit5 */
1777 #define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT5_SHIFT 1
1778 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF0_MASK 0x3 /* timer0cf */
1779 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF0_SHIFT 2
1780 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF1_MASK 0x3 /* timer1cf */
1781 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF1_SHIFT 4
1782 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF2_MASK 0x3 /* timer2cf */
1783 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF2_SHIFT 6
1785 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF3_MASK 0x3 /* timer_stop_all */
1786 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF3_SHIFT 0
1787 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF4_MASK 0x3 /* cf4 */
1788 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF4_SHIFT 2
1789 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF5_MASK 0x3 /* cf5 */
1790 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF5_SHIFT 4
1791 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF6_MASK 0x3 /* cf6 */
1792 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF6_SHIFT 6
1794 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF7_MASK 0x3 /* cf7 */
1795 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF7_SHIFT 0
1796 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF0EN_MASK 0x1 /* cf0en */
1797 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF0EN_SHIFT 2
1798 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF1EN_MASK 0x1 /* cf1en */
1799 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF1EN_SHIFT 3
1800 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF2EN_MASK 0x1 /* cf2en */
1801 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF2EN_SHIFT 4
1802 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF3EN_MASK 0x1 /* cf3en */
1803 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF3EN_SHIFT 5
1804 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF4EN_MASK 0x1 /* cf4en */
1805 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF4EN_SHIFT 6
1806 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF5EN_MASK 0x1 /* cf5en */
1807 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF5EN_SHIFT 7
1809 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF6EN_MASK 0x1 /* cf6en */
1810 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF6EN_SHIFT 0
1811 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF7EN_MASK 0x1 /* cf7en */
1812 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF7EN_SHIFT 1
1813 #define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE0EN_MASK 0x1 /* rule0en */
1814 #define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE0EN_SHIFT 2
1815 #define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1 /* rule1en */
1816 #define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 3
1817 #define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE2EN_MASK 0x1 /* rule2en */
1818 #define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE2EN_SHIFT 4
1819 #define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1 /* rule3en */
1820 #define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 5
1821 #define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1 /* rule4en */
1822 #define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 6
1823 #define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1 /* rule5en */
1824 #define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 7
1825 u8 byte2 /* byte2 */;
1826 __le16 word1 /* word1 */;
1827 __le32 reg0 /* reg0 */;
1828 u8 byte3 /* regpair0 */;
1829 u8 byte4 /* byte4 */;
1830 __le16 word2 /* word2 */;
1831 __le16 word3 /* word3 */;
1832 __le16 word4 /* word4 */;
1833 __le32 reg1 /* regpair1 */;
1834 __le32 reg2 /* reg2 */;
1838 struct e5_ustorm_iscsi_task_ag_ctx
1840 u8 reserved /* cdu_validation */;
1841 u8 state_and_core_id /* state_and_core_id */;
1842 __le16 icid /* icid */;
1844 #define E5_USTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_MASK 0xF /* connection_type */
1845 #define E5_USTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_SHIFT 0
1846 #define E5_USTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_MASK 0x1 /* exist_in_qm0 */
1847 #define E5_USTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_SHIFT 4
1848 #define E5_USTORM_ISCSI_TASK_AG_CTX_BIT1_MASK 0x1 /* exist_in_qm1 */
1849 #define E5_USTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT 5
1850 #define E5_USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_MASK 0x3 /* timer0cf */
1851 #define E5_USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_SHIFT 6
1853 #define E5_USTORM_ISCSI_TASK_AG_CTX_RESERVED1_MASK 0x3 /* timer1cf */
1854 #define E5_USTORM_ISCSI_TASK_AG_CTX_RESERVED1_SHIFT 0
1855 #define E5_USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_MASK 0x3 /* timer2cf */
1856 #define E5_USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_SHIFT 2
1857 #define E5_USTORM_ISCSI_TASK_AG_CTX_CF3_MASK 0x3 /* timer_stop_all */
1858 #define E5_USTORM_ISCSI_TASK_AG_CTX_CF3_SHIFT 4
1859 #define E5_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_MASK 0x3 /* dif_error_cf */
1860 #define E5_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_SHIFT 6
1862 #define E5_USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_EN_MASK 0x1 /* cf0en */
1863 #define E5_USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_EN_SHIFT 0
1864 #define E5_USTORM_ISCSI_TASK_AG_CTX_DISABLE_DATA_ACKED_MASK 0x1 /* cf1en */
1865 #define E5_USTORM_ISCSI_TASK_AG_CTX_DISABLE_DATA_ACKED_SHIFT 1
1866 #define E5_USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_EN_MASK 0x1 /* cf2en */
1867 #define E5_USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_EN_SHIFT 2
1868 #define E5_USTORM_ISCSI_TASK_AG_CTX_CF3EN_MASK 0x1 /* cf3en */
1869 #define E5_USTORM_ISCSI_TASK_AG_CTX_CF3EN_SHIFT 3
1870 #define E5_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_EN_MASK 0x1 /* cf4en */
1871 #define E5_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_EN_SHIFT 4
1872 #define E5_USTORM_ISCSI_TASK_AG_CTX_CMP_DATA_TOTAL_EXP_EN_MASK 0x1 /* rule0en */
1873 #define E5_USTORM_ISCSI_TASK_AG_CTX_CMP_DATA_TOTAL_EXP_EN_SHIFT 5
1874 #define E5_USTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1 /* rule1en */
1875 #define E5_USTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 6
1876 #define E5_USTORM_ISCSI_TASK_AG_CTX_CMP_CONT_RCV_EXP_EN_MASK 0x1 /* rule2en */
1877 #define E5_USTORM_ISCSI_TASK_AG_CTX_CMP_CONT_RCV_EXP_EN_SHIFT 7
1879 #define E5_USTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1 /* rule3en */
1880 #define E5_USTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 0
1881 #define E5_USTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1 /* rule4en */
1882 #define E5_USTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 1
1883 #define E5_USTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1 /* rule5en */
1884 #define E5_USTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 2
1885 #define E5_USTORM_ISCSI_TASK_AG_CTX_RULE6EN_MASK 0x1 /* rule6en */
1886 #define E5_USTORM_ISCSI_TASK_AG_CTX_RULE6EN_SHIFT 3
1887 #define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED1_MASK 0x1 /* bit2 */
1888 #define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED1_SHIFT 4
1889 #define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED2_MASK 0x1 /* bit3 */
1890 #define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED2_SHIFT 5
1891 #define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED3_MASK 0x1 /* bit4 */
1892 #define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED3_SHIFT 6
1893 #define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED4_MASK 0x1 /* rule7en */
1894 #define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED4_SHIFT 7
1896 #define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED5_MASK 0x3 /* cf5 */
1897 #define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED5_SHIFT 0
1898 #define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED6_MASK 0x1 /* cf5en */
1899 #define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED6_SHIFT 2
1900 #define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED7_MASK 0x1 /* rule8en */
1901 #define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED7_SHIFT 3
1902 #define E5_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_TYPE_MASK 0xF /* dif_error_type */
1903 #define E5_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_TYPE_SHIFT 4
1904 u8 next_tid_valid /* byte2 */;
1905 u8 byte3 /* byte3 */;
1906 u8 e4_reserved8 /* byte4 */;
1907 __le32 dif_err_intervals /* dif_err_intervals */;
1908 __le32 dif_error_1st_interval /* dif_error_1st_interval */;
1909 __le32 rcv_cont_len /* reg2 */;
1910 __le32 exp_cont_len /* reg3 */;
1911 __le32 total_data_acked /* reg4 */;
1912 __le32 exp_data_acked /* reg5 */;
1913 __le16 word1 /* word1 */;
1914 __le16 next_tid /* word2 */;
1915 __le32 hdr_residual_count /* reg6 */;
1916 __le32 exp_r2t_sn /* reg7 */;
1920 struct e5_ystorm_iscsi_task_ag_ctx
1922 u8 reserved /* cdu_validation */;
1923 u8 byte1 /* state_and_core_id */;
1924 __le16 word0 /* icid */;
1926 #define E5_YSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_MASK 0xF /* connection_type */
1927 #define E5_YSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_SHIFT 0
1928 #define E5_YSTORM_ISCSI_TASK_AG_CTX_BIT0_MASK 0x1 /* exist_in_qm0 */
1929 #define E5_YSTORM_ISCSI_TASK_AG_CTX_BIT0_SHIFT 4
1930 #define E5_YSTORM_ISCSI_TASK_AG_CTX_BIT1_MASK 0x1 /* exist_in_qm1 */
1931 #define E5_YSTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT 5
1932 #define E5_YSTORM_ISCSI_TASK_AG_CTX_VALID_MASK 0x1 /* bit2 */
1933 #define E5_YSTORM_ISCSI_TASK_AG_CTX_VALID_SHIFT 6
1934 #define E5_YSTORM_ISCSI_TASK_AG_CTX_BIT3_MASK 0x1 /* bit3 */
1935 #define E5_YSTORM_ISCSI_TASK_AG_CTX_BIT3_SHIFT 7
1937 #define E5_YSTORM_ISCSI_TASK_AG_CTX_CF0_MASK 0x3 /* cf0 */
1938 #define E5_YSTORM_ISCSI_TASK_AG_CTX_CF0_SHIFT 0
1939 #define E5_YSTORM_ISCSI_TASK_AG_CTX_CF1_MASK 0x3 /* cf1 */
1940 #define E5_YSTORM_ISCSI_TASK_AG_CTX_CF1_SHIFT 2
1941 #define E5_YSTORM_ISCSI_TASK_AG_CTX_CF2SPECIAL_MASK 0x3 /* cf2special */
1942 #define E5_YSTORM_ISCSI_TASK_AG_CTX_CF2SPECIAL_SHIFT 4
1943 #define E5_YSTORM_ISCSI_TASK_AG_CTX_CF0EN_MASK 0x1 /* cf0en */
1944 #define E5_YSTORM_ISCSI_TASK_AG_CTX_CF0EN_SHIFT 6
1945 #define E5_YSTORM_ISCSI_TASK_AG_CTX_CF1EN_MASK 0x1 /* cf1en */
1946 #define E5_YSTORM_ISCSI_TASK_AG_CTX_CF1EN_SHIFT 7
1948 #define E5_YSTORM_ISCSI_TASK_AG_CTX_BIT4_MASK 0x1 /* bit4 */
1949 #define E5_YSTORM_ISCSI_TASK_AG_CTX_BIT4_SHIFT 0
1950 #define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE0EN_MASK 0x1 /* rule0en */
1951 #define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE0EN_SHIFT 1
1952 #define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1 /* rule1en */
1953 #define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 2
1954 #define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE2EN_MASK 0x1 /* rule2en */
1955 #define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE2EN_SHIFT 3
1956 #define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1 /* rule3en */
1957 #define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 4
1958 #define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1 /* rule4en */
1959 #define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 5
1960 #define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1 /* rule5en */
1961 #define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 6
1962 #define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE6EN_MASK 0x1 /* rule6en */
1963 #define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE6EN_SHIFT 7
1965 #define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED1_MASK 0x1 /* bit5 */
1966 #define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED1_SHIFT 0
1967 #define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED2_MASK 0x3 /* cf3 */
1968 #define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED2_SHIFT 1
1969 #define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED3_MASK 0x3 /* cf4 */
1970 #define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED3_SHIFT 3
1971 #define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED4_MASK 0x1 /* cf3en */
1972 #define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED4_SHIFT 5
1973 #define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED5_MASK 0x1 /* cf4en */
1974 #define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED5_SHIFT 6
1975 #define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED6_MASK 0x1 /* rule7en */
1976 #define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED6_SHIFT 7
1977 __le32 TTT /* reg0 */;
1978 u8 byte2 /* byte2 */;
1979 u8 byte3 /* byte3 */;
1980 u8 byte4 /* byte4 */;
1981 u8 e4_reserved7 /* byte5 */;
1986 * iSCSI doorbell data
1988 struct iscsi_db_data
1991 #define ISCSI_DB_DATA_DEST_MASK 0x3 /* destination of doorbell (use enum db_dest) */
1992 #define ISCSI_DB_DATA_DEST_SHIFT 0
1993 #define ISCSI_DB_DATA_AGG_CMD_MASK 0x3 /* aggregative command to CM (use enum db_agg_cmd_sel) */
1994 #define ISCSI_DB_DATA_AGG_CMD_SHIFT 2
1995 #define ISCSI_DB_DATA_BYPASS_EN_MASK 0x1 /* enable QM bypass */
1996 #define ISCSI_DB_DATA_BYPASS_EN_SHIFT 4
1997 #define ISCSI_DB_DATA_RESERVED_MASK 0x1
1998 #define ISCSI_DB_DATA_RESERVED_SHIFT 5
1999 #define ISCSI_DB_DATA_AGG_VAL_SEL_MASK 0x3 /* aggregative value selection */
2000 #define ISCSI_DB_DATA_AGG_VAL_SEL_SHIFT 6
2001 u8 agg_flags /* bit for every DQ counter flags in CM context that DQ can increment */;
2005 #endif /* __ISCSI_COMMON__ */