treewide: remove redundant IS_ERR() before error code check
[linux/fpc-iii.git] / drivers / scsi / bnx2fc / bnx2fc_constants.h
blob9ed150307a39af70a104c76498cde602e25bdcc5
1 /* bnx2fc_constants.h: QLogic Linux FCoE offload driver.
2 * Handles operations such as session offload/upload etc, and manages
3 * session resources such as connection id and qp resources.
5 * Copyright (c) 2008-2013 Broadcom Corporation
6 * Copyright (c) 2014-2016 QLogic Corporation
7 * Copyright (c) 2016-2017 Cavium Inc.
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation.
15 #ifndef __BNX2FC_CONSTANTS_H_
16 #define __BNX2FC_CONSTANTS_H_
18 /**
19 * This file defines HSI constants for the FCoE flows
22 /* Current FCoE HSI version number composed of two fields (16 bit) */
23 /* Implies on a change broken previous HSI */
24 #define FCOE_HSI_MAJOR_VERSION (2)
25 /* Implies on a change which does not broken previous HSI */
26 #define FCOE_HSI_MINOR_VERSION (1)
28 /* KWQ/KCQ FCoE layer code */
29 #define FCOE_KWQE_LAYER_CODE (7)
31 /* KWQ (kernel work queue) request op codes */
32 #define FCOE_KWQE_OPCODE_INIT1 (0)
33 #define FCOE_KWQE_OPCODE_INIT2 (1)
34 #define FCOE_KWQE_OPCODE_INIT3 (2)
35 #define FCOE_KWQE_OPCODE_OFFLOAD_CONN1 (3)
36 #define FCOE_KWQE_OPCODE_OFFLOAD_CONN2 (4)
37 #define FCOE_KWQE_OPCODE_OFFLOAD_CONN3 (5)
38 #define FCOE_KWQE_OPCODE_OFFLOAD_CONN4 (6)
39 #define FCOE_KWQE_OPCODE_ENABLE_CONN (7)
40 #define FCOE_KWQE_OPCODE_DISABLE_CONN (8)
41 #define FCOE_KWQE_OPCODE_DESTROY_CONN (9)
42 #define FCOE_KWQE_OPCODE_DESTROY (10)
43 #define FCOE_KWQE_OPCODE_STAT (11)
45 /* KCQ (kernel completion queue) response op codes */
46 #define FCOE_KCQE_OPCODE_INIT_FUNC (0x10)
47 #define FCOE_KCQE_OPCODE_DESTROY_FUNC (0x11)
48 #define FCOE_KCQE_OPCODE_STAT_FUNC (0x12)
49 #define FCOE_KCQE_OPCODE_OFFLOAD_CONN (0x15)
50 #define FCOE_KCQE_OPCODE_ENABLE_CONN (0x16)
51 #define FCOE_KCQE_OPCODE_DISABLE_CONN (0x17)
52 #define FCOE_KCQE_OPCODE_DESTROY_CONN (0x18)
53 #define FCOE_KCQE_OPCODE_CQ_EVENT_NOTIFICATION (0x20)
54 #define FCOE_KCQE_OPCODE_FCOE_ERROR (0x21)
56 /* KCQ (kernel completion queue) completion status */
57 #define FCOE_KCQE_COMPLETION_STATUS_SUCCESS (0x0)
58 #define FCOE_KCQE_COMPLETION_STATUS_ERROR (0x1)
59 #define FCOE_KCQE_COMPLETION_STATUS_INVALID_OPCODE (0x2)
60 #define FCOE_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAILURE (0x3)
61 #define FCOE_KCQE_COMPLETION_STATUS_CTX_FREE_FAILURE (0x4)
62 #define FCOE_KCQE_COMPLETION_STATUS_NIC_ERROR (0x5)
63 #define FCOE_KCQE_COMPLETION_STATUS_WRONG_HSI_VERSION (0x6)
64 #define FCOE_KCQE_COMPLETION_STATUS_PARITY_ERROR (0x81)
66 /* CQE type */
67 #define FCOE_PENDING_CQE_TYPE 0
68 #define FCOE_UNSOLIC_CQE_TYPE 1
70 /* Unsolicited CQE type */
71 #define FCOE_UNSOLICITED_FRAME_CQE_TYPE 0
72 #define FCOE_ERROR_DETECTION_CQE_TYPE 1
73 #define FCOE_WARNING_DETECTION_CQE_TYPE 2
75 /* E_D_TOV timer resolution in ms */
76 #define FCOE_E_D_TOV_TIMER_RESOLUTION_MS (20)
78 /* E_D_TOV timer resolution for SDM (4 micro) */
79 #define FCOE_E_D_TOV_SDM_TIMER_RESOLUTION \
80 (FCOE_E_D_TOV_TIMER_RESOLUTION_MS * 1000 / 4)
82 /* REC timer resolution in ms */
83 #define FCOE_REC_TIMER_RESOLUTION_MS (20)
85 /* REC timer resolution for SDM (4 micro) */
86 #define FCOE_REC_SDM_TIMER_RESOLUTION (FCOE_REC_TIMER_RESOLUTION_MS * 1000 / 4)
88 /* E_D_TOV timer default wraparound value (2 sec) in 20 ms resolution */
89 #define FCOE_E_D_TOV_DEFAULT_WRAPAROUND_VAL \
90 (2000 / FCOE_E_D_TOV_TIMER_RESOLUTION_MS)
92 /* REC_TOV timer default wraparound value (3 sec) in 20 ms resolution */
93 #define FCOE_REC_TOV_DEFAULT_WRAPAROUND_VAL \
94 (3000 / FCOE_REC_TIMER_RESOLUTION_MS)
96 #define FCOE_NUM_OF_TIMER_TASKS (8 * 1024)
98 #define FCOE_NUM_OF_CACHED_TASKS_TIMER (8)
100 /* Task context constants */
101 /******** Remove FCP_CMD write tce sleep ***********************/
102 /* In case timer services are required then shall be updated by Xstorm after
103 * start processing the task. In case no timer facilities are required then the
104 * driver would initialize the state to this value
106 #define FCOE_TASK_TX_STATE_NORMAL 0
107 * After driver has initialize the task in case timer services required *
108 #define FCOE_TASK_TX_STATE_INIT 1
109 ******** Remove FCP_CMD write tce sleep ***********************/
110 /* After driver has initialize the task in case timer services required */
111 #define FCOE_TASK_TX_STATE_INIT 0
112 /* In case timer services are required then shall be updated by Xstorm after
113 * start processing the task. In case no timer facilities are required then the
114 * driver would initialize the state to this value
116 #define FCOE_TASK_TX_STATE_NORMAL 1
117 /* Task is under abort procedure. Updated in order to stop processing of
118 * pending WQEs on this task
120 #define FCOE_TASK_TX_STATE_ABORT 2
121 /* For E_D_T_TOV timer expiration in Xstorm (Class 2 only) */
122 #define FCOE_TASK_TX_STATE_ERROR 3
123 /* For REC_TOV timer expiration indication received from Xstorm */
124 #define FCOE_TASK_TX_STATE_WARNING 4
125 /* For completed unsolicited task */
126 #define FCOE_TASK_TX_STATE_UNSOLICITED_COMPLETED 5
127 /* For exchange cleanup request task */
128 #define FCOE_TASK_TX_STATE_EXCHANGE_CLEANUP 6
129 /* For sequence cleanup request task */
130 #define FCOE_TASK_TX_STATE_SEQUENCE_CLEANUP 7
131 /* For completion the ABTS task. */
132 #define FCOE_TASK_TX_STATE_ABTS_TX 8
134 #define FCOE_TASK_RX_STATE_NORMAL 0
135 #define FCOE_TASK_RX_STATE_COMPLETED 1
136 /* Obsolete: Intermediate completion (middle path with local completion) */
137 #define FCOE_TASK_RX_STATE_INTER_COMP 2
138 /* For REC_TOV timer expiration indication received from Xstorm */
139 #define FCOE_TASK_RX_STATE_WARNING 3
140 /* For E_D_T_TOV timer expiration in Ustorm */
141 #define FCOE_TASK_RX_STATE_ERROR 4
142 /* FW only: First visit at rx-path, part of the abts round trip */
143 #define FCOE_TASK_RX_STATE_ABTS_IN_PROCESS 5
144 /* FW only: Second visit at rx-path, after ABTS frame transmitted */
145 #define FCOE_TASK_RX_STATE_ABTS_TRANSMITTED 6
146 /* Special completion indication in case of task was aborted. */
147 #define FCOE_TASK_RX_STATE_ABTS_COMPLETED 7
148 /* FW only: First visit at rx-path, part of the cleanup round trip */
149 #define FCOE_TASK_RX_STATE_EXCHANGE_CLEANUP_IN_PROCESS 8
150 /* FW only: Special completion indication in case of task was cleaned. */
151 #define FCOE_TASK_RX_STATE_EXCHANGE_CLEANUP_COMPLETED 9
152 /* Not in used: Special completion indication (in task requested the exchange
153 * cleanup) in case cleaned task is in non-valid.
155 #define FCOE_TASK_RX_STATE_ABORT_CLEANUP_COMPLETED 10
156 /* Special completion indication (in task requested the sequence cleanup) in
157 * case cleaned task was already returned to normal.
159 #define FCOE_TASK_RX_STATE_IGNORED_SEQUENCE_CLEANUP 11
162 #define FCOE_TASK_TYPE_WRITE 0
163 #define FCOE_TASK_TYPE_READ 1
164 #define FCOE_TASK_TYPE_MIDPATH 2
165 #define FCOE_TASK_TYPE_UNSOLICITED 3
166 #define FCOE_TASK_TYPE_ABTS 4
167 #define FCOE_TASK_TYPE_EXCHANGE_CLEANUP 5
168 #define FCOE_TASK_TYPE_SEQUENCE_CLEANUP 6
170 #define FCOE_TASK_DEV_TYPE_DISK 0
171 #define FCOE_TASK_DEV_TYPE_TAPE 1
173 #define FCOE_TASK_CLASS_TYPE_3 0
174 #define FCOE_TASK_CLASS_TYPE_2 1
176 /* FCoE/FC packet fields */
177 #define FCOE_ETH_TYPE 0x8906
179 /* FCoE maximum elements in hash table */
180 #define FCOE_MAX_ELEMENTS_IN_HASH_TABLE_ROW 8
182 /* FCoE half of the elements in hash table */
183 #define FCOE_HALF_ELEMENTS_IN_HASH_TABLE_ROW \
184 (FCOE_MAX_ELEMENTS_IN_HASH_TABLE_ROW / 2)
186 /* FcoE number of cached T2 entries */
187 #define T_FCOE_NUMBER_OF_CACHED_T2_ENTRIES (4)
189 /* FCoE maximum elements in hash table */
190 #define FCOE_HASH_TBL_CHUNK_SIZE 16384
192 /* Everest FCoE connection type */
193 #define B577XX_FCOE_CONNECTION_TYPE 4
195 /* FCoE number of rows (in log). This number derives
196 * from the maximum connections supported which is 2048.
197 * TBA: Need a different constant for E2
199 #define FCOE_MAX_NUM_SESSIONS_LOG 11
201 #define FC_ABTS_REPLY_MAX_PAYLOAD_LEN 12
203 /* Error codes for Error Reporting in slow path flows */
204 #define FCOE_SLOW_PATH_ERROR_CODE_TOO_MANY_FUNCS 0
205 #define FCOE_SLOW_PATH_ERROR_CODE_NO_LICENSE 1
207 /* Error codes for Error Reporting in fast path flows
208 * XFER error codes
210 #define FCOE_ERROR_CODE_XFER_OOO_RO 0
211 #define FCOE_ERROR_CODE_XFER_RO_NOT_ALIGNED 1
212 #define FCOE_ERROR_CODE_XFER_NULL_BURST_LEN 2
213 #define FCOE_ERROR_CODE_XFER_RO_GREATER_THAN_DATA2TRNS 3
214 #define FCOE_ERROR_CODE_XFER_INVALID_PAYLOAD_SIZE 4
215 #define FCOE_ERROR_CODE_XFER_TASK_TYPE_NOT_WRITE 5
216 #define FCOE_ERROR_CODE_XFER_PEND_XFER_SET 6
217 #define FCOE_ERROR_CODE_XFER_OPENED_SEQ 7
218 #define FCOE_ERROR_CODE_XFER_FCTL 8
220 /* FCP RSP error codes */
221 #define FCOE_ERROR_CODE_FCP_RSP_BIDI_FLAGS_SET 9
222 #define FCOE_ERROR_CODE_FCP_RSP_UNDERFLOW 10
223 #define FCOE_ERROR_CODE_FCP_RSP_OVERFLOW 11
224 #define FCOE_ERROR_CODE_FCP_RSP_INVALID_LENGTH_FIELD 12
225 #define FCOE_ERROR_CODE_FCP_RSP_INVALID_SNS_FIELD 13
226 #define FCOE_ERROR_CODE_FCP_RSP_INVALID_PAYLOAD_SIZE 14
227 #define FCOE_ERROR_CODE_FCP_RSP_PEND_XFER_SET 15
228 #define FCOE_ERROR_CODE_FCP_RSP_OPENED_SEQ 16
229 #define FCOE_ERROR_CODE_FCP_RSP_FCTL 17
230 #define FCOE_ERROR_CODE_FCP_RSP_LAST_SEQ_RESET 18
231 #define FCOE_ERROR_CODE_FCP_RSP_CONF_REQ_NOT_SUPPORTED_YET 19
233 /* FCP DATA error codes */
234 #define FCOE_ERROR_CODE_DATA_OOO_RO 20
235 #define FCOE_ERROR_CODE_DATA_EXCEEDS_DEFINED_MAX_FRAME_SIZE 21
236 #define FCOE_ERROR_CODE_DATA_EXCEEDS_DATA2TRNS 22
237 #define FCOE_ERROR_CODE_DATA_SOFI3_SEQ_ACTIVE_SET 23
238 #define FCOE_ERROR_CODE_DATA_SOFN_SEQ_ACTIVE_RESET 24
239 #define FCOE_ERROR_CODE_DATA_EOFN_END_SEQ_SET 25
240 #define FCOE_ERROR_CODE_DATA_EOFT_END_SEQ_RESET 26
241 #define FCOE_ERROR_CODE_DATA_TASK_TYPE_NOT_READ 27
242 #define FCOE_ERROR_CODE_DATA_FCTL 28
244 /* Middle path error codes */
245 #define FCOE_ERROR_CODE_MIDPATH_INVALID_TYPE 29
246 #define FCOE_ERROR_CODE_MIDPATH_SOFI3_SEQ_ACTIVE_SET 30
247 #define FCOE_ERROR_CODE_MIDPATH_SOFN_SEQ_ACTIVE_RESET 31
248 #define FCOE_ERROR_CODE_MIDPATH_EOFN_END_SEQ_SET 32
249 #define FCOE_ERROR_CODE_MIDPATH_EOFT_END_SEQ_RESET 33
250 #define FCOE_ERROR_CODE_MIDPATH_REPLY_FCTL 34
251 #define FCOE_ERROR_CODE_MIDPATH_INVALID_REPLY 35
252 #define FCOE_ERROR_CODE_MIDPATH_ELS_REPLY_RCTL 36
254 /* ABTS error codes */
255 #define FCOE_ERROR_CODE_ABTS_REPLY_F_CTL 37
256 #define FCOE_ERROR_CODE_ABTS_REPLY_DDF_RCTL_FIELD 38
257 #define FCOE_ERROR_CODE_ABTS_REPLY_INVALID_BLS_RCTL 39
258 #define FCOE_ERROR_CODE_ABTS_REPLY_INVALID_RCTL 40
259 #define FCOE_ERROR_CODE_ABTS_REPLY_RCTL_GENERAL_MISMATCH 41
261 /* Common error codes */
262 #define FCOE_ERROR_CODE_COMMON_MIDDLE_FRAME_WITH_PAD 42
263 #define FCOE_ERROR_CODE_COMMON_SEQ_INIT_IN_TCE 43
264 #define FCOE_ERROR_CODE_COMMON_FC_HDR_RX_ID_MISMATCH 44
265 #define FCOE_ERROR_CODE_COMMON_INCORRECT_SEQ_CNT 45
266 #define FCOE_ERROR_CODE_COMMON_DATA_FC_HDR_FCP_TYPE_MISMATCH 46
267 #define FCOE_ERROR_CODE_COMMON_DATA_NO_MORE_SGES 47
268 #define FCOE_ERROR_CODE_COMMON_OPTIONAL_FC_HDR 48
269 #define FCOE_ERROR_CODE_COMMON_READ_TCE_OX_ID_TOO_BIG 49
270 #define FCOE_ERROR_CODE_COMMON_DATA_WAS_NOT_TRANSMITTED 50
272 /* Unsolicited Rx error codes */
273 #define FCOE_ERROR_CODE_UNSOLICITED_TYPE_NOT_ELS 51
274 #define FCOE_ERROR_CODE_UNSOLICITED_TYPE_NOT_BLS 52
275 #define FCOE_ERROR_CODE_UNSOLICITED_FCTL_ELS 53
276 #define FCOE_ERROR_CODE_UNSOLICITED_FCTL_BLS 54
277 #define FCOE_ERROR_CODE_UNSOLICITED_R_CTL 55
279 #define FCOE_ERROR_CODE_RW_TASK_DDF_RCTL_INFO_FIELD 56
280 #define FCOE_ERROR_CODE_RW_TASK_INVALID_RCTL 57
281 #define FCOE_ERROR_CODE_RW_TASK_RCTL_GENERAL_MISMATCH 58
283 /* Timer error codes */
284 #define FCOE_ERROR_CODE_E_D_TOV_TIMER_EXPIRATION 60
285 #define FCOE_ERROR_CODE_REC_TOV_TIMER_EXPIRATION 61
288 #endif /* BNX2FC_CONSTANTS_H_ */