drivers/s390/scsi/zfcp_dbf.h

   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, 2009
   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 #define ZFCP_DBF_ID_SIZE       7
  29
  30 struct zfcp_dbf_dump {
  31         u8 tag[ZFCP_DBF_TAG_SIZE];
  32         u32 total_size;         /* size of total dump data */
  33         u32 offset;             /* how much data has being already dumped */
  34         u32 size;               /* how much data comes with this record */
  35         u8 data[];              /* dump data */
  36 } __attribute__ ((packed));
  37
  38 struct zfcp_rec_dbf_record_thread {
  39         u32 total;
  40         u32 ready;
  41         u32 running;
  42 };
  43
  44 struct zfcp_rec_dbf_record_target {
  45         u64 ref;
  46         u32 status;
  47         u32 d_id;
  48         u64 wwpn;
  49         u64 fcp_lun;
  50         u32 erp_count;
  51 };
  52
  53 struct zfcp_rec_dbf_record_trigger {
  54         u8 want;
  55         u8 need;
  56         u32 as;
  57         u32 ps;
  58         u32 us;
  59         u64 ref;
  60         u64 action;
  61         u64 wwpn;
  62         u64 fcp_lun;
  63 };
  64
  65 struct zfcp_rec_dbf_record_action {
  66         u32 status;
  67         u32 step;
  68         u64 action;
  69         u64 fsf_req;
  70 };
  71
  72 struct zfcp_rec_dbf_record {
  73         u8 id;
  74         char id2[7];
  75         union {
  76                 struct zfcp_rec_dbf_record_action action;
  77                 struct zfcp_rec_dbf_record_thread thread;
  78                 struct zfcp_rec_dbf_record_target target;
  79                 struct zfcp_rec_dbf_record_trigger trigger;
  80         } u;
  81 };
  82
  83 enum {
  84         ZFCP_REC_DBF_ID_ACTION,
  85         ZFCP_REC_DBF_ID_THREAD,
  86         ZFCP_REC_DBF_ID_TARGET,
  87         ZFCP_REC_DBF_ID_TRIGGER,
  88 };
  89
  90 struct zfcp_hba_dbf_record_response {
  91         u32 fsf_command;
  92         u64 fsf_reqid;
  93         u32 fsf_seqno;
  94         u64 fsf_issued;
  95         u32 fsf_prot_status;
  96         u32 fsf_status;
  97         u8 fsf_prot_status_qual[FSF_PROT_STATUS_QUAL_SIZE];
  98         u8 fsf_status_qual[FSF_STATUS_QUALIFIER_SIZE];
  99         u32 fsf_req_status;
 100         u8 sbal_first;
 101         u8 sbal_last;
 102         u8 sbal_response;
 103         u8 pool;
 104         u64 erp_action;
 105         union {
 106                 struct {
 107                         u64 cmnd;
 108                         u64 serial;
 109                 } fcp;
 110                 struct {
 111                         u64 wwpn;
 112                         u32 d_id;
 113                         u32 port_handle;
 114                 } port;
 115                 struct {
 116                         u64 wwpn;
 117                         u64 fcp_lun;
 118                         u32 port_handle;
 119                         u32 lun_handle;
 120                 } unit;
 121                 struct {
 122                         u32 d_id;
 123                         u8 ls_code;
 124                 } els;
 125         } u;
 126 } __attribute__ ((packed));
 127
 128 struct zfcp_hba_dbf_record_status {
 129         u8 failed;
 130         u32 status_type;
 131         u32 status_subtype;
 132         struct fsf_queue_designator
 133          queue_designator;
 134         u32 payload_size;
 135 #define ZFCP_DBF_UNSOL_PAYLOAD                          80
 136 #define ZFCP_DBF_UNSOL_PAYLOAD_SENSE_DATA_AVAIL         32
 137 #define ZFCP_DBF_UNSOL_PAYLOAD_BIT_ERROR_THRESHOLD      56
 138 #define ZFCP_DBF_UNSOL_PAYLOAD_FEATURE_UPDATE_ALERT     2 * sizeof(u32)
 139         u8 payload[ZFCP_DBF_UNSOL_PAYLOAD];
 140 } __attribute__ ((packed));
 141
 142 struct zfcp_hba_dbf_record_qdio {
 143         u32 qdio_error;
 144         u8 sbal_index;
 145         u8 sbal_count;
 146 } __attribute__ ((packed));
 147
 148 struct zfcp_hba_dbf_record {
 149         u8 tag[ZFCP_DBF_TAG_SIZE];
 150         u8 tag2[ZFCP_DBF_TAG_SIZE];
 151         union {
 152                 struct zfcp_hba_dbf_record_response response;
 153                 struct zfcp_hba_dbf_record_status status;
 154                 struct zfcp_hba_dbf_record_qdio qdio;
 155                 struct fsf_bit_error_payload berr;
 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 } __attribute__ ((packed));
 168
 169 struct zfcp_san_dbf_record_ct_response {
 170         u16 cmd_rsp_code;
 171         u8 revision;
 172         u8 reason_code;
 173         u8 expl;
 174         u8 vendor_unique;
 175         u16 max_res_size;
 176         u32 len;
 177 } __attribute__ ((packed));
 178
 179 struct zfcp_san_dbf_record_els {
 180         u8 ls_code;
 181         u32 len;
 182 } __attribute__ ((packed));
 183
 184 struct zfcp_san_dbf_record {
 185         u8 tag[ZFCP_DBF_TAG_SIZE];
 186         u64 fsf_reqid;
 187         u32 fsf_seqno;
 188         u32 s_id;
 189         u32 d_id;
 190         union {
 191                 struct zfcp_san_dbf_record_ct_request ct_req;
 192                 struct zfcp_san_dbf_record_ct_response ct_resp;
 193                 struct zfcp_san_dbf_record_els els;
 194         } u;
 195 #define ZFCP_DBF_SAN_MAX_PAYLOAD 1024
 196         u8 payload[32];
 197 } __attribute__ ((packed));
 198
 199 struct zfcp_scsi_dbf_record {
 200         u8 tag[ZFCP_DBF_TAG_SIZE];
 201         u8 tag2[ZFCP_DBF_TAG_SIZE];
 202         u32 scsi_id;
 203         u32 scsi_lun;
 204         u32 scsi_result;
 205         u64 scsi_cmnd;
 206         u64 scsi_serial;
 207 #define ZFCP_DBF_SCSI_OPCODE    16
 208         u8 scsi_opcode[ZFCP_DBF_SCSI_OPCODE];
 209         u8 scsi_retries;
 210         u8 scsi_allowed;
 211         u64 fsf_reqid;
 212         u32 fsf_seqno;
 213         u64 fsf_issued;
 214         u64 old_fsf_reqid;
 215         u8 rsp_validity;
 216         u8 rsp_scsi_status;
 217         u32 rsp_resid;
 218         u8 rsp_code;
 219 #define ZFCP_DBF_SCSI_FCP_SNS_INFO      16
 220 #define ZFCP_DBF_SCSI_MAX_FCP_SNS_INFO  256
 221         u32 sns_info_len;
 222         u8 sns_info[ZFCP_DBF_SCSI_FCP_SNS_INFO];
 223 } __attribute__ ((packed));
 224
 225 struct zfcp_dbf {
 226         debug_info_t                    *rec_dbf;
 227         debug_info_t                    *hba_dbf;
 228         debug_info_t                    *san_dbf;
 229         debug_info_t                    *scsi_dbf;
 230         spinlock_t                      rec_dbf_lock;
 231         spinlock_t                      hba_dbf_lock;
 232         spinlock_t                      san_dbf_lock;
 233         spinlock_t                      scsi_dbf_lock;
 234         struct zfcp_rec_dbf_record      rec_dbf_buf;
 235         struct zfcp_hba_dbf_record      hba_dbf_buf;
 236         struct zfcp_san_dbf_record      san_dbf_buf;
 237         struct zfcp_scsi_dbf_record     scsi_dbf_buf;
 238 };
 239
 240 #endif /* ZFCP_DBF_H */