xref: /openbmc/linux/drivers/s390/scsi/zfcp_dbf.h (revision 22246614)
1 /*
2  * This file is part of the zfcp device driver for
3  * FCP adapters for IBM System z9 and zSeries.
4  *
5  * Copyright IBM Corp. 2008, 2008
6  *
7  * This program is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License as published by
9  * the Free Software Foundation; either version 2, or (at your option)
10  * any later version.
11  *
12  * This program is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with this program; if not, write to the Free Software
19  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20  */
21 
22 #ifndef ZFCP_DBF_H
23 #define ZFCP_DBF_H
24 
25 #include "zfcp_fsf.h"
26 
27 #define ZFCP_DBF_TAG_SIZE      4
28 
29 struct zfcp_dbf_dump {
30 	u8 tag[ZFCP_DBF_TAG_SIZE];
31 	u32 total_size;		/* size of total dump data */
32 	u32 offset;		/* how much data has being already dumped */
33 	u32 size;		/* how much data comes with this record */
34 	u8 data[];		/* dump data */
35 } __attribute__ ((packed));
36 
37 struct zfcp_rec_dbf_record_thread {
38 	u32 total;
39 	u32 ready;
40 	u32 running;
41 } __attribute__ ((packed));
42 
43 struct zfcp_rec_dbf_record_target {
44 	u64 ref;
45 	u32 status;
46 	u32 d_id;
47 	u64 wwpn;
48 	u64 fcp_lun;
49 	u32 erp_count;
50 } __attribute__ ((packed));
51 
52 struct zfcp_rec_dbf_record_trigger {
53 	u8 want;
54 	u8 need;
55 	u32 as;
56 	u32 ps;
57 	u32 us;
58 	u64 ref;
59 	u64 action;
60 	u64 wwpn;
61 	u64 fcp_lun;
62 } __attribute__ ((packed));
63 
64 struct zfcp_rec_dbf_record_action {
65 	u32 status;
66 	u32 step;
67 	u64 action;
68 	u64 fsf_req;
69 } __attribute__ ((packed));
70 
71 struct zfcp_rec_dbf_record {
72 	u8 id;
73 	u8 id2;
74 	union {
75 		struct zfcp_rec_dbf_record_action action;
76 		struct zfcp_rec_dbf_record_thread thread;
77 		struct zfcp_rec_dbf_record_target target;
78 		struct zfcp_rec_dbf_record_trigger trigger;
79 	} u;
80 } __attribute__ ((packed));
81 
82 enum {
83 	ZFCP_REC_DBF_ID_ACTION,
84 	ZFCP_REC_DBF_ID_THREAD,
85 	ZFCP_REC_DBF_ID_TARGET,
86 	ZFCP_REC_DBF_ID_TRIGGER,
87 };
88 
89 struct zfcp_hba_dbf_record_response {
90 	u32 fsf_command;
91 	u64 fsf_reqid;
92 	u32 fsf_seqno;
93 	u64 fsf_issued;
94 	u32 fsf_prot_status;
95 	u32 fsf_status;
96 	u8 fsf_prot_status_qual[FSF_PROT_STATUS_QUAL_SIZE];
97 	u8 fsf_status_qual[FSF_STATUS_QUALIFIER_SIZE];
98 	u32 fsf_req_status;
99 	u8 sbal_first;
100 	u8 sbal_curr;
101 	u8 sbal_last;
102 	u8 pool;
103 	u64 erp_action;
104 	union {
105 		struct {
106 			u64 cmnd;
107 			u64 serial;
108 		} fcp;
109 		struct {
110 			u64 wwpn;
111 			u32 d_id;
112 			u32 port_handle;
113 		} port;
114 		struct {
115 			u64 wwpn;
116 			u64 fcp_lun;
117 			u32 port_handle;
118 			u32 lun_handle;
119 		} unit;
120 		struct {
121 			u32 d_id;
122 			u8 ls_code;
123 		} els;
124 	} u;
125 } __attribute__ ((packed));
126 
127 struct zfcp_hba_dbf_record_status {
128 	u8 failed;
129 	u32 status_type;
130 	u32 status_subtype;
131 	struct fsf_queue_designator
132 	 queue_designator;
133 	u32 payload_size;
134 #define ZFCP_DBF_UNSOL_PAYLOAD				80
135 #define ZFCP_DBF_UNSOL_PAYLOAD_SENSE_DATA_AVAIL		32
136 #define ZFCP_DBF_UNSOL_PAYLOAD_BIT_ERROR_THRESHOLD	56
137 #define ZFCP_DBF_UNSOL_PAYLOAD_FEATURE_UPDATE_ALERT	2 * sizeof(u32)
138 	u8 payload[ZFCP_DBF_UNSOL_PAYLOAD];
139 } __attribute__ ((packed));
140 
141 struct zfcp_hba_dbf_record_qdio {
142 	u32 status;
143 	u32 qdio_error;
144 	u32 siga_error;
145 	u8 sbal_index;
146 	u8 sbal_count;
147 } __attribute__ ((packed));
148 
149 struct zfcp_hba_dbf_record {
150 	u8 tag[ZFCP_DBF_TAG_SIZE];
151 	u8 tag2[ZFCP_DBF_TAG_SIZE];
152 	union {
153 		struct zfcp_hba_dbf_record_response response;
154 		struct zfcp_hba_dbf_record_status status;
155 		struct zfcp_hba_dbf_record_qdio qdio;
156 	} u;
157 } __attribute__ ((packed));
158 
159 struct zfcp_san_dbf_record_ct_request {
160 	u16 cmd_req_code;
161 	u8 revision;
162 	u8 gs_type;
163 	u8 gs_subtype;
164 	u8 options;
165 	u16 max_res_size;
166 	u32 len;
167 #define ZFCP_DBF_CT_PAYLOAD	24
168 	u8 payload[ZFCP_DBF_CT_PAYLOAD];
169 } __attribute__ ((packed));
170 
171 struct zfcp_san_dbf_record_ct_response {
172 	u16 cmd_rsp_code;
173 	u8 revision;
174 	u8 reason_code;
175 	u8 expl;
176 	u8 vendor_unique;
177 	u32 len;
178 	u8 payload[ZFCP_DBF_CT_PAYLOAD];
179 } __attribute__ ((packed));
180 
181 struct zfcp_san_dbf_record_els {
182 	u8 ls_code;
183 	u32 len;
184 #define ZFCP_DBF_ELS_PAYLOAD	32
185 #define ZFCP_DBF_ELS_MAX_PAYLOAD 1024
186 	u8 payload[ZFCP_DBF_ELS_PAYLOAD];
187 } __attribute__ ((packed));
188 
189 struct zfcp_san_dbf_record {
190 	u8 tag[ZFCP_DBF_TAG_SIZE];
191 	u64 fsf_reqid;
192 	u32 fsf_seqno;
193 	u32 s_id;
194 	u32 d_id;
195 	union {
196 		struct zfcp_san_dbf_record_ct_request ct_req;
197 		struct zfcp_san_dbf_record_ct_response ct_resp;
198 		struct zfcp_san_dbf_record_els els;
199 	} u;
200 } __attribute__ ((packed));
201 
202 struct zfcp_scsi_dbf_record {
203 	u8 tag[ZFCP_DBF_TAG_SIZE];
204 	u8 tag2[ZFCP_DBF_TAG_SIZE];
205 	u32 scsi_id;
206 	u32 scsi_lun;
207 	u32 scsi_result;
208 	u64 scsi_cmnd;
209 	u64 scsi_serial;
210 #define ZFCP_DBF_SCSI_OPCODE	16
211 	u8 scsi_opcode[ZFCP_DBF_SCSI_OPCODE];
212 	u8 scsi_retries;
213 	u8 scsi_allowed;
214 	u64 fsf_reqid;
215 	u32 fsf_seqno;
216 	u64 fsf_issued;
217 	u64 old_fsf_reqid;
218 	u8 rsp_validity;
219 	u8 rsp_scsi_status;
220 	u32 rsp_resid;
221 	u8 rsp_code;
222 #define ZFCP_DBF_SCSI_FCP_SNS_INFO	16
223 #define ZFCP_DBF_SCSI_MAX_FCP_SNS_INFO	256
224 	u32 sns_info_len;
225 	u8 sns_info[ZFCP_DBF_SCSI_FCP_SNS_INFO];
226 } __attribute__ ((packed));
227 
228 #endif /* ZFCP_DBF_H */
229