Commit | Line | Data |
---|---|---|
41fa2ada | 1 | /* |
553448f6 | 2 | * zfcp device driver |
1da177e4 | 3 | * |
553448f6 | 4 | * Interface to the FSF support functions. |
41fa2ada | 5 | * |
a53c8fab | 6 | * Copyright IBM Corp. 2002, 2010 |
1da177e4 LT |
7 | */ |
8 | ||
9 | #ifndef FSF_H | |
10 | #define FSF_H | |
11 | ||
45633fdc | 12 | #include <linux/pfn.h> |
d46f384a | 13 | #include <linux/scatterlist.h> |
800c0cad | 14 | #include <scsi/libfc.h> |
45633fdc | 15 | |
06506d00 | 16 | #define FSF_QTCB_CURRENT_VERSION 0x00000001 |
1da177e4 LT |
17 | |
18 | /* FSF commands */ | |
19 | #define FSF_QTCB_FCP_CMND 0x00000001 | |
20 | #define FSF_QTCB_ABORT_FCP_CMND 0x00000002 | |
21 | #define FSF_QTCB_OPEN_PORT_WITH_DID 0x00000005 | |
22 | #define FSF_QTCB_OPEN_LUN 0x00000006 | |
23 | #define FSF_QTCB_CLOSE_LUN 0x00000007 | |
24 | #define FSF_QTCB_CLOSE_PORT 0x00000008 | |
25 | #define FSF_QTCB_CLOSE_PHYSICAL_PORT 0x00000009 | |
26 | #define FSF_QTCB_SEND_ELS 0x0000000B | |
27 | #define FSF_QTCB_SEND_GENERIC 0x0000000C | |
28 | #define FSF_QTCB_EXCHANGE_CONFIG_DATA 0x0000000D | |
29 | #define FSF_QTCB_EXCHANGE_PORT_DATA 0x0000000E | |
30 | #define FSF_QTCB_DOWNLOAD_CONTROL_FILE 0x00000012 | |
31 | #define FSF_QTCB_UPLOAD_CONTROL_FILE 0x00000013 | |
32 | ||
33 | /* FSF QTCB types */ | |
34 | #define FSF_IO_COMMAND 0x00000001 | |
35 | #define FSF_SUPPORT_COMMAND 0x00000002 | |
36 | #define FSF_CONFIG_COMMAND 0x00000003 | |
37 | #define FSF_PORT_COMMAND 0x00000004 | |
38 | ||
06506d00 | 39 | /* FSF protocol states */ |
1da177e4 LT |
40 | #define FSF_PROT_GOOD 0x00000001 |
41 | #define FSF_PROT_QTCB_VERSION_ERROR 0x00000010 | |
42 | #define FSF_PROT_SEQ_NUMB_ERROR 0x00000020 | |
43 | #define FSF_PROT_UNSUPP_QTCB_TYPE 0x00000040 | |
44 | #define FSF_PROT_HOST_CONNECTION_INITIALIZING 0x00000080 | |
45 | #define FSF_PROT_FSF_STATUS_PRESENTED 0x00000100 | |
46 | #define FSF_PROT_DUPLICATE_REQUEST_ID 0x00000200 | |
47 | #define FSF_PROT_LINK_DOWN 0x00000400 | |
48 | #define FSF_PROT_REEST_QUEUE 0x00000800 | |
49 | #define FSF_PROT_ERROR_STATE 0x01000000 | |
50 | ||
06506d00 | 51 | /* FSF states */ |
1da177e4 LT |
52 | #define FSF_GOOD 0x00000000 |
53 | #define FSF_PORT_ALREADY_OPEN 0x00000001 | |
54 | #define FSF_LUN_ALREADY_OPEN 0x00000002 | |
55 | #define FSF_PORT_HANDLE_NOT_VALID 0x00000003 | |
56 | #define FSF_LUN_HANDLE_NOT_VALID 0x00000004 | |
57 | #define FSF_HANDLE_MISMATCH 0x00000005 | |
58 | #define FSF_SERVICE_CLASS_NOT_SUPPORTED 0x00000006 | |
59 | #define FSF_FCPLUN_NOT_VALID 0x00000009 | |
1da177e4 LT |
60 | #define FSF_LUN_SHARING_VIOLATION 0x00000012 |
61 | #define FSF_FCP_COMMAND_DOES_NOT_EXIST 0x00000022 | |
62 | #define FSF_DIRECTION_INDICATOR_NOT_VALID 0x00000030 | |
63 | #define FSF_CMND_LENGTH_NOT_VALID 0x00000033 | |
64 | #define FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED 0x00000040 | |
65 | #define FSF_MAXIMUM_NUMBER_OF_LUNS_EXCEEDED 0x00000041 | |
66 | #define FSF_ELS_COMMAND_REJECTED 0x00000050 | |
67 | #define FSF_GENERIC_COMMAND_REJECTED 0x00000051 | |
1da177e4 LT |
68 | #define FSF_PORT_BOXED 0x00000059 |
69 | #define FSF_LUN_BOXED 0x0000005A | |
70 | #define FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE 0x0000005B | |
71 | #define FSF_PAYLOAD_SIZE_MISMATCH 0x00000060 | |
72 | #define FSF_REQUEST_SIZE_TOO_LARGE 0x00000061 | |
73 | #define FSF_RESPONSE_SIZE_TOO_LARGE 0x00000062 | |
74 | #define FSF_SBAL_MISMATCH 0x00000063 | |
ef3eb71d FB |
75 | #define FSF_INCONSISTENT_PROT_DATA 0x00000070 |
76 | #define FSF_INVALID_PROT_PARM 0x00000071 | |
77 | #define FSF_BLOCK_GUARD_CHECK_FAILURE 0x00000081 | |
78 | #define FSF_APP_TAG_CHECK_FAILURE 0x00000082 | |
79 | #define FSF_REF_TAG_CHECK_FAILURE 0x00000083 | |
1da177e4 | 80 | #define FSF_ADAPTER_STATUS_AVAILABLE 0x000000AD |
1da177e4 LT |
81 | #define FSF_UNKNOWN_COMMAND 0x000000E2 |
82 | #define FSF_UNKNOWN_OP_SUBTYPE 0x000000E3 | |
83 | #define FSF_INVALID_COMMAND_OPTION 0x000000E5 | |
1da177e4 | 84 | |
8a36e453 | 85 | #define FSF_PROT_STATUS_QUAL_SIZE 16 |
1da177e4 LT |
86 | #define FSF_STATUS_QUALIFIER_SIZE 16 |
87 | ||
88 | /* FSF status qualifier, recommendations */ | |
89 | #define FSF_SQ_NO_RECOM 0x00 | |
90 | #define FSF_SQ_FCP_RSP_AVAILABLE 0x01 | |
91 | #define FSF_SQ_RETRY_IF_POSSIBLE 0x02 | |
92 | #define FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED 0x03 | |
93 | #define FSF_SQ_INVOKE_LINK_TEST_PROCEDURE 0x04 | |
1da177e4 LT |
94 | #define FSF_SQ_COMMAND_ABORTED 0x06 |
95 | #define FSF_SQ_NO_RETRY_POSSIBLE 0x07 | |
96 | ||
1da177e4 | 97 | /* FSF status qualifier (most significant 4 bytes), local link down */ |
aef4a983 MS |
98 | #define FSF_PSQ_LINK_NO_LIGHT 0x00000004 |
99 | #define FSF_PSQ_LINK_WRAP_PLUG 0x00000008 | |
100 | #define FSF_PSQ_LINK_NO_FCP 0x00000010 | |
101 | #define FSF_PSQ_LINK_FIRMWARE_UPDATE 0x00000020 | |
102 | #define FSF_PSQ_LINK_INVALID_WWPN 0x00000100 | |
103 | #define FSF_PSQ_LINK_NO_NPIV_SUPPORT 0x00000200 | |
104 | #define FSF_PSQ_LINK_NO_FCP_RESOURCES 0x00000400 | |
105 | #define FSF_PSQ_LINK_NO_FABRIC_RESOURCES 0x00000800 | |
106 | #define FSF_PSQ_LINK_FABRIC_LOGIN_UNABLE 0x00001000 | |
107 | #define FSF_PSQ_LINK_WWPN_ASSIGNMENT_CORRUPTED 0x00002000 | |
108 | #define FSF_PSQ_LINK_MODE_TABLE_CURRUPTED 0x00004000 | |
109 | #define FSF_PSQ_LINK_NO_WWPN_ASSIGNMENT 0x00008000 | |
1da177e4 LT |
110 | |
111 | /* payload size in status read buffer */ | |
112 | #define FSF_STATUS_READ_PAYLOAD_SIZE 4032 | |
113 | ||
114 | /* number of status read buffers that should be sent by ULP */ | |
115 | #define FSF_STATUS_READS_RECOM 16 | |
116 | ||
117 | /* status types in status read buffer */ | |
118 | #define FSF_STATUS_READ_PORT_CLOSED 0x00000001 | |
119 | #define FSF_STATUS_READ_INCOMING_ELS 0x00000002 | |
120 | #define FSF_STATUS_READ_SENSE_DATA_AVAIL 0x00000003 | |
121 | #define FSF_STATUS_READ_BIT_ERROR_THRESHOLD 0x00000004 | |
aef4a983 | 122 | #define FSF_STATUS_READ_LINK_DOWN 0x00000005 |
1da177e4 | 123 | #define FSF_STATUS_READ_LINK_UP 0x00000006 |
9eb69aff | 124 | #define FSF_STATUS_READ_NOTIFICATION_LOST 0x00000009 |
aef4a983 | 125 | #define FSF_STATUS_READ_FEATURE_UPDATE_ALERT 0x0000000C |
1da177e4 | 126 | |
aef4a983 MS |
127 | /* status subtypes for link down */ |
128 | #define FSF_STATUS_READ_SUB_NO_PHYSICAL_LINK 0x00000000 | |
129 | #define FSF_STATUS_READ_SUB_FDISC_FAILED 0x00000001 | |
130 | #define FSF_STATUS_READ_SUB_FIRMWARE_UPDATE 0x00000002 | |
131 | ||
9eb69aff MS |
132 | /* status subtypes for unsolicited status notification lost */ |
133 | #define FSF_STATUS_READ_SUB_INCOMING_ELS 0x00000001 | |
1da177e4 LT |
134 | |
135 | /* topologie that is detected by the adapter */ | |
1da177e4 LT |
136 | #define FSF_TOPO_P2P 0x00000001 |
137 | #define FSF_TOPO_FABRIC 0x00000002 | |
138 | #define FSF_TOPO_AL 0x00000003 | |
1da177e4 LT |
139 | |
140 | /* data direction for FCP commands */ | |
141 | #define FSF_DATADIR_WRITE 0x00000001 | |
142 | #define FSF_DATADIR_READ 0x00000002 | |
1da177e4 | 143 | #define FSF_DATADIR_CMND 0x00000004 |
ef3eb71d FB |
144 | #define FSF_DATADIR_DIF_WRITE_INSERT 0x00000009 |
145 | #define FSF_DATADIR_DIF_READ_STRIP 0x0000000a | |
146 | #define FSF_DATADIR_DIF_WRITE_CONVERT 0x0000000b | |
147 | #define FSF_DATADIR_DIF_READ_CONVERT 0X0000000c | |
148 | ||
149 | /* data protection control flags */ | |
150 | #define FSF_APP_TAG_CHECK_ENABLE 0x10 | |
1da177e4 LT |
151 | |
152 | /* fc service class */ | |
1da177e4 LT |
153 | #define FSF_CLASS_3 0x00000003 |
154 | ||
1da177e4 LT |
155 | /* logging space behind QTCB */ |
156 | #define FSF_QTCB_LOG_SIZE 1024 | |
157 | ||
158 | /* channel features */ | |
9eb69aff | 159 | #define FSF_FEATURE_NOTIFICATION_LOST 0x00000008 |
1da177e4 | 160 | #define FSF_FEATURE_HBAAPI_MANAGEMENT 0x00000010 |
39eb7e9a | 161 | #define FSF_FEATURE_ELS_CT_CHAINED_SBALS 0x00000020 |
aef4a983 | 162 | #define FSF_FEATURE_UPDATE_ALERT 0x00000100 |
6d9d63b9 | 163 | #define FSF_FEATURE_MEASUREMENT_DATA 0x00000200 |
ef3eb71d FB |
164 | #define FSF_FEATURE_DIF_PROT_TYPE1 0x00010000 |
165 | #define FSF_FEATURE_DIX_PROT_TCPIP 0x00020000 | |
aef4a983 MS |
166 | |
167 | /* host connection features */ | |
168 | #define FSF_FEATURE_NPIV_MODE 0x00000001 | |
1da177e4 LT |
169 | |
170 | /* option */ | |
171 | #define FSF_OPEN_LUN_SUPPRESS_BOXING 0x00000001 | |
1da177e4 | 172 | |
1da177e4 LT |
173 | struct fsf_queue_designator { |
174 | u8 cssid; | |
175 | u8 chpid; | |
176 | u8 hla; | |
177 | u8 ua; | |
178 | u32 res1; | |
179 | } __attribute__ ((packed)); | |
180 | ||
1da177e4 LT |
181 | struct fsf_bit_error_payload { |
182 | u32 res1; | |
183 | u32 link_failure_error_count; | |
184 | u32 loss_of_sync_error_count; | |
185 | u32 loss_of_signal_error_count; | |
186 | u32 primitive_sequence_error_count; | |
187 | u32 invalid_transmission_word_error_count; | |
188 | u32 crc_error_count; | |
189 | u32 primitive_sequence_event_timeout_count; | |
190 | u32 elastic_buffer_overrun_error_count; | |
191 | u32 fcal_arbitration_timeout_count; | |
192 | u32 advertised_receive_b2b_credit; | |
193 | u32 current_receive_b2b_credit; | |
194 | u32 advertised_transmit_b2b_credit; | |
195 | u32 current_transmit_b2b_credit; | |
196 | } __attribute__ ((packed)); | |
197 | ||
c41f8cbd SS |
198 | struct fsf_link_down_info { |
199 | u32 error_code; | |
200 | u32 res1; | |
201 | u8 res2[2]; | |
202 | u8 primary_status; | |
203 | u8 ioerr_code; | |
204 | u8 action_code; | |
205 | u8 reason_code; | |
206 | u8 explanation_code; | |
207 | u8 vendor_specific_code; | |
208 | } __attribute__ ((packed)); | |
209 | ||
1da177e4 LT |
210 | struct fsf_status_read_buffer { |
211 | u32 status_type; | |
212 | u32 status_subtype; | |
213 | u32 length; | |
214 | u32 res1; | |
215 | struct fsf_queue_designator queue_designator; | |
800c0cad CS |
216 | u8 res2; |
217 | u8 d_id[3]; | |
1da177e4 LT |
218 | u32 class; |
219 | u64 fcp_lun; | |
220 | u8 res3[24]; | |
c41f8cbd SS |
221 | union { |
222 | u8 data[FSF_STATUS_READ_PAYLOAD_SIZE]; | |
223 | u32 word[FSF_STATUS_READ_PAYLOAD_SIZE/sizeof(u32)]; | |
224 | struct fsf_link_down_info link_down_info; | |
225 | struct fsf_bit_error_payload bit_error; | |
226 | } payload; | |
1da177e4 LT |
227 | } __attribute__ ((packed)); |
228 | ||
229 | struct fsf_qual_version_error { | |
230 | u32 fsf_version; | |
231 | u32 res1[3]; | |
232 | } __attribute__ ((packed)); | |
233 | ||
234 | struct fsf_qual_sequence_error { | |
235 | u32 exp_req_seq_no; | |
236 | u32 res1[3]; | |
237 | } __attribute__ ((packed)); | |
238 | ||
c9615858 CS |
239 | struct fsf_qual_latency_info { |
240 | u32 channel_lat; | |
241 | u32 fabric_lat; | |
242 | u8 res1[8]; | |
243 | } __attribute__ ((packed)); | |
244 | ||
1da177e4 | 245 | union fsf_prot_status_qual { |
553448f6 | 246 | u32 word[FSF_PROT_STATUS_QUAL_SIZE / sizeof(u32)]; |
8a36e453 | 247 | u64 doubleword[FSF_PROT_STATUS_QUAL_SIZE / sizeof(u64)]; |
1da177e4 LT |
248 | struct fsf_qual_version_error version_error; |
249 | struct fsf_qual_sequence_error sequence_error; | |
aef4a983 | 250 | struct fsf_link_down_info link_down_info; |
c9615858 | 251 | struct fsf_qual_latency_info latency_info; |
1da177e4 LT |
252 | } __attribute__ ((packed)); |
253 | ||
254 | struct fsf_qtcb_prefix { | |
255 | u64 req_id; | |
256 | u32 qtcb_version; | |
257 | u32 ulp_info; | |
258 | u32 qtcb_type; | |
259 | u32 req_seq_no; | |
260 | u32 prot_status; | |
261 | union fsf_prot_status_qual prot_status_qual; | |
262 | u8 res1[20]; | |
263 | } __attribute__ ((packed)); | |
264 | ||
6d9d63b9 SS |
265 | struct fsf_statistics_info { |
266 | u64 input_req; | |
267 | u64 output_req; | |
268 | u64 control_req; | |
269 | u64 input_mb; | |
270 | u64 output_mb; | |
271 | u64 seconds_act; | |
272 | } __attribute__ ((packed)); | |
273 | ||
1da177e4 LT |
274 | union fsf_status_qual { |
275 | u8 byte[FSF_STATUS_QUALIFIER_SIZE]; | |
276 | u16 halfword[FSF_STATUS_QUALIFIER_SIZE / sizeof (u16)]; | |
277 | u32 word[FSF_STATUS_QUALIFIER_SIZE / sizeof (u32)]; | |
8a36e453 | 278 | u64 doubleword[FSF_STATUS_QUALIFIER_SIZE / sizeof(u64)]; |
1da177e4 | 279 | struct fsf_queue_designator fsf_queue_designator; |
aef4a983 | 280 | struct fsf_link_down_info link_down_info; |
1da177e4 LT |
281 | } __attribute__ ((packed)); |
282 | ||
283 | struct fsf_qtcb_header { | |
284 | u64 req_handle; | |
285 | u32 fsf_command; | |
286 | u32 res1; | |
287 | u32 port_handle; | |
288 | u32 lun_handle; | |
289 | u32 res2; | |
290 | u32 fsf_status; | |
291 | union fsf_status_qual fsf_status_qual; | |
292 | u8 res3[28]; | |
293 | u16 log_start; | |
294 | u16 log_length; | |
295 | u8 res4[16]; | |
296 | } __attribute__ ((packed)); | |
297 | ||
39eb7e9a | 298 | #define FSF_PLOGI_MIN_LEN 112 |
1da177e4 LT |
299 | |
300 | #define FSF_FCP_CMND_SIZE 288 | |
301 | #define FSF_FCP_RSP_SIZE 128 | |
302 | ||
303 | struct fsf_qtcb_bottom_io { | |
304 | u32 data_direction; | |
305 | u32 service_class; | |
ef3eb71d FB |
306 | u8 res1; |
307 | u8 data_prot_flags; | |
308 | u16 app_tag_value; | |
309 | u32 ref_tag_value; | |
1da177e4 | 310 | u32 fcp_cmnd_length; |
ef3eb71d FB |
311 | u32 data_block_length; |
312 | u32 prot_data_length; | |
313 | u8 res2[4]; | |
1da177e4 LT |
314 | u8 fcp_cmnd[FSF_FCP_CMND_SIZE]; |
315 | u8 fcp_rsp[FSF_FCP_RSP_SIZE]; | |
316 | u8 res3[64]; | |
317 | } __attribute__ ((packed)); | |
318 | ||
319 | struct fsf_qtcb_bottom_support { | |
320 | u32 operation_subtype; | |
800c0cad CS |
321 | u8 res1[13]; |
322 | u8 d_id[3]; | |
1da177e4 LT |
323 | u32 option; |
324 | u64 fcp_lun; | |
325 | u64 res2; | |
326 | u64 req_handle; | |
327 | u32 service_class; | |
328 | u8 res3[3]; | |
329 | u8 timeout; | |
330 | u32 lun_access_info; | |
331 | u8 res4[180]; | |
332 | u32 els1_length; | |
333 | u32 els2_length; | |
334 | u32 req_buf_length; | |
335 | u32 resp_buf_length; | |
336 | u8 els[256]; | |
337 | } __attribute__ ((packed)); | |
338 | ||
faf4cd85 CS |
339 | #define ZFCP_FSF_TIMER_INT_MASK 0x3FFF |
340 | ||
1da177e4 LT |
341 | struct fsf_qtcb_bottom_config { |
342 | u32 lic_version; | |
343 | u32 feature_selection; | |
344 | u32 high_qtcb_version; | |
345 | u32 low_qtcb_version; | |
346 | u32 max_qtcb_size; | |
347 | u32 max_data_transfer_size; | |
aef4a983 MS |
348 | u32 adapter_features; |
349 | u32 connection_features; | |
1da177e4 LT |
350 | u32 fc_topology; |
351 | u32 fc_link_speed; | |
352 | u32 adapter_type; | |
800c0cad CS |
353 | u8 res0; |
354 | u8 peer_d_id[3]; | |
64deb6ef | 355 | u16 status_read_buf_num; |
c9615858 | 356 | u16 timer_interval; |
800c0cad CS |
357 | u8 res2[9]; |
358 | u8 s_id[3]; | |
9d05ce2c | 359 | u8 nport_serv_param[128]; |
1da177e4 LT |
360 | u8 res3[8]; |
361 | u32 adapter_ports; | |
362 | u32 hardware_version; | |
363 | u8 serial_number[32]; | |
9d05ce2c | 364 | u8 plogi_payload[112]; |
6d9d63b9 SS |
365 | struct fsf_statistics_info stat_info; |
366 | u8 res4[112]; | |
1da177e4 LT |
367 | } __attribute__ ((packed)); |
368 | ||
369 | struct fsf_qtcb_bottom_port { | |
aef4a983 | 370 | u64 wwpn; |
1da177e4 LT |
371 | u32 fc_port_id; |
372 | u32 port_type; | |
373 | u32 port_state; | |
374 | u32 class_of_service; /* should be 0x00000006 for class 2 and 3 */ | |
375 | u8 supported_fc4_types[32]; /* should be 0x00000100 for scsi fcp */ | |
376 | u8 active_fc4_types[32]; | |
377 | u32 supported_speed; /* 0x0001 for 1 GBit/s or 0x0002 for 2 GBit/s */ | |
378 | u32 maximum_frame_size; /* fixed value of 2112 */ | |
379 | u64 seconds_since_last_reset; | |
380 | u64 tx_frames; | |
381 | u64 tx_words; | |
382 | u64 rx_frames; | |
383 | u64 rx_words; | |
384 | u64 lip; /* 0 */ | |
385 | u64 nos; /* currently 0 */ | |
386 | u64 error_frames; /* currently 0 */ | |
387 | u64 dumped_frames; /* currently 0 */ | |
388 | u64 link_failure; | |
389 | u64 loss_of_sync; | |
390 | u64 loss_of_signal; | |
391 | u64 psp_error_counts; | |
392 | u64 invalid_tx_words; | |
393 | u64 invalid_crcs; | |
394 | u64 input_requests; | |
395 | u64 output_requests; | |
396 | u64 control_requests; | |
397 | u64 input_mb; /* where 1 MByte == 1.000.000 Bytes */ | |
398 | u64 output_mb; /* where 1 MByte == 1.000.000 Bytes */ | |
6d9d63b9 SS |
399 | u8 cp_util; |
400 | u8 cb_util; | |
401 | u8 a_util; | |
402 | u8 res2[253]; | |
1da177e4 LT |
403 | } __attribute__ ((packed)); |
404 | ||
405 | union fsf_qtcb_bottom { | |
406 | struct fsf_qtcb_bottom_io io; | |
407 | struct fsf_qtcb_bottom_support support; | |
408 | struct fsf_qtcb_bottom_config config; | |
409 | struct fsf_qtcb_bottom_port port; | |
410 | }; | |
411 | ||
412 | struct fsf_qtcb { | |
413 | struct fsf_qtcb_prefix prefix; | |
414 | struct fsf_qtcb_header header; | |
415 | union fsf_qtcb_bottom bottom; | |
416 | u8 log[FSF_QTCB_LOG_SIZE]; | |
417 | } __attribute__ ((packed)); | |
418 | ||
0997f1c5 SR |
419 | struct zfcp_blk_drv_data { |
420 | #define ZFCP_BLK_DRV_DATA_MAGIC 0x1 | |
421 | u32 magic; | |
422 | #define ZFCP_BLK_LAT_VALID 0x1 | |
423 | #define ZFCP_BLK_REQ_ERROR 0x2 | |
424 | u16 flags; | |
425 | u8 inb_usage; | |
426 | u8 outb_usage; | |
427 | u64 channel_lat; | |
428 | u64 fabric_lat; | |
429 | } __attribute__ ((packed)); | |
430 | ||
7c7dc196 CS |
431 | /** |
432 | * struct zfcp_fsf_ct_els - zfcp data for ct or els request | |
433 | * @req: scatter-gather list for request | |
434 | * @resp: scatter-gather list for response | |
435 | * @handler: handler function (called for response to the request) | |
436 | * @handler_data: data passed to handler function | |
437 | * @port: Optional pointer to port for zfcp internal ELS (only test link ADISC) | |
438 | * @status: used to pass error status to calling function | |
439 | */ | |
440 | struct zfcp_fsf_ct_els { | |
441 | struct scatterlist *req; | |
442 | struct scatterlist *resp; | |
443 | void (*handler)(void *); | |
444 | void *handler_data; | |
445 | struct zfcp_port *port; | |
446 | int status; | |
447 | }; | |
448 | ||
1da177e4 | 449 | #endif /* FSF_H */ |