Back to home page

OSCL-LXR
 
 

     

0001 /* SPDX-License-Identifier: GPL-2.0 */
0002 /*
0003  * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com>
0004  *          Horst Hummel <Horst.Hummel@de.ibm.com>
0005  * Bugreports.to..: <Linux390@de.ibm.com>
0006  * Copyright IBM Corp. 1999, 2000
0007  *
0008  */
0009 
0010 #ifndef DASD_ECKD_H
0011 #define DASD_ECKD_H
0012 
0013 /*****************************************************************************
0014  * SECTION: CCW Definitions
0015  ****************************************************************************/
0016 #define DASD_ECKD_CCW_WRITE      0x05
0017 #define DASD_ECKD_CCW_READ       0x06
0018 #define DASD_ECKD_CCW_WRITE_HOME_ADDRESS 0x09
0019 #define DASD_ECKD_CCW_READ_HOME_ADDRESS  0x0a
0020 #define DASD_ECKD_CCW_WRITE_KD       0x0d
0021 #define DASD_ECKD_CCW_READ_KD        0x0e
0022 #define DASD_ECKD_CCW_ERASE      0x11
0023 #define DASD_ECKD_CCW_READ_COUNT     0x12
0024 #define DASD_ECKD_CCW_SLCK       0x14
0025 #define DASD_ECKD_CCW_WRITE_RECORD_ZERO  0x15
0026 #define DASD_ECKD_CCW_READ_RECORD_ZERO   0x16
0027 #define DASD_ECKD_CCW_WRITE_CKD      0x1d
0028 #define DASD_ECKD_CCW_READ_CKD       0x1e
0029 #define DASD_ECKD_CCW_PSF        0x27
0030 #define DASD_ECKD_CCW_SNID       0x34
0031 #define DASD_ECKD_CCW_RSSD       0x3e
0032 #define DASD_ECKD_CCW_LOCATE_RECORD  0x47
0033 #define DASD_ECKD_CCW_LOCATE_RECORD_EXT  0x4b
0034 #define DASD_ECKD_CCW_SNSS       0x54
0035 #define DASD_ECKD_CCW_DEFINE_EXTENT  0x63
0036 #define DASD_ECKD_CCW_WRITE_MT       0x85
0037 #define DASD_ECKD_CCW_READ_MT        0x86
0038 #define DASD_ECKD_CCW_WRITE_KD_MT    0x8d
0039 #define DASD_ECKD_CCW_READ_KD_MT     0x8e
0040 #define DASD_ECKD_CCW_READ_COUNT_MT  0x92
0041 #define DASD_ECKD_CCW_RELEASE        0x94
0042 #define DASD_ECKD_CCW_WRITE_FULL_TRACK   0x95
0043 #define DASD_ECKD_CCW_READ_CKD_MT    0x9e
0044 #define DASD_ECKD_CCW_WRITE_CKD_MT   0x9d
0045 #define DASD_ECKD_CCW_WRITE_TRACK_DATA   0xA5
0046 #define DASD_ECKD_CCW_READ_TRACK_DATA    0xA6
0047 #define DASD_ECKD_CCW_RESERVE        0xB4
0048 #define DASD_ECKD_CCW_READ_TRACK     0xDE
0049 #define DASD_ECKD_CCW_PFX        0xE7
0050 #define DASD_ECKD_CCW_PFX_READ       0xEA
0051 #define DASD_ECKD_CCW_RSCK       0xF9
0052 #define DASD_ECKD_CCW_RCD        0xFA
0053 #define DASD_ECKD_CCW_DSO        0xF7
0054 
0055 /* Define Subsystem Function / Orders */
0056 #define DSO_ORDER_RAS            0x81
0057 
0058 /*
0059  * Perform Subsystem Function / Orders
0060  */
0061 #define PSF_ORDER_PRSSD          0x18
0062 #define PSF_ORDER_CUIR_RESPONSE      0x1A
0063 #define PSF_ORDER_SSC            0x1D
0064 
0065 /*
0066  * Perform Subsystem Function / Sub-Orders
0067  */
0068 #define PSF_SUBORDER_QHA         0x1C /* Query Host Access */
0069 #define PSF_SUBORDER_VSQ         0x52 /* Volume Storage Query */
0070 #define PSF_SUBORDER_LCQ         0x53 /* Logical Configuration Query */
0071 
0072 /*
0073  * CUIR response condition codes
0074  */
0075 #define PSF_CUIR_INVALID         0x00
0076 #define PSF_CUIR_COMPLETED       0x01
0077 #define PSF_CUIR_NOT_SUPPORTED       0x02
0078 #define PSF_CUIR_ERROR_IN_REQ        0x03
0079 #define PSF_CUIR_DENIED          0x04
0080 #define PSF_CUIR_LAST_PATH       0x05
0081 #define PSF_CUIR_DEVICE_ONLINE       0x06
0082 #define PSF_CUIR_VARY_FAILURE        0x07
0083 #define PSF_CUIR_SOFTWARE_FAILURE    0x08
0084 #define PSF_CUIR_NOT_RECOGNIZED      0x09
0085 
0086 /*
0087  * CUIR codes
0088  */
0089 #define CUIR_QUIESCE             0x01
0090 #define CUIR_RESUME          0x02
0091 
0092 /*
0093  * Out-of-space (OOS) Codes
0094  */
0095 #define REPO_WARN            0x01
0096 #define REPO_EXHAUST             0x02
0097 #define POOL_WARN            0x03
0098 #define POOL_EXHAUST             0x04
0099 #define REPO_RELIEVE             0x05
0100 #define POOL_RELIEVE             0x06
0101 
0102 /*
0103  * attention message definitions
0104  */
0105 #define ATTENTION_LENGTH_CUIR        0x0e
0106 #define ATTENTION_FORMAT_CUIR        0x01
0107 #define ATTENTION_LENGTH_OOS         0x10
0108 #define ATTENTION_FORMAT_OOS         0x06
0109 
0110 #define DASD_ECKD_PG_GROUPED         0x10
0111 
0112 /*
0113  * Size that is reported for large volumes in the old 16-bit no_cyl field
0114  */
0115 #define LV_COMPAT_CYL 0xFFFE
0116 
0117 
0118 #define FCX_MAX_DATA_FACTOR 65536
0119 #define DASD_ECKD_RCD_DATA_SIZE 256
0120 
0121 #define DASD_ECKD_PATH_THRHLD        256
0122 #define DASD_ECKD_PATH_INTERVAL      300
0123 
0124 /*
0125  * Maximum number of blocks to be chained
0126  */
0127 #define DASD_ECKD_MAX_BLOCKS         190
0128 #define DASD_ECKD_MAX_BLOCKS_RAW     256
0129 
0130 /*****************************************************************************
0131  * SECTION: Type Definitions
0132  ****************************************************************************/
0133 
0134 struct eckd_count {
0135     __u16 cyl;
0136     __u16 head;
0137     __u8 record;
0138     __u8 kl;
0139     __u16 dl;
0140 } __attribute__ ((packed));
0141 
0142 struct ch_t {
0143     __u16 cyl;
0144     __u16 head;
0145 } __attribute__ ((packed));
0146 
0147 struct chr_t {
0148     __u16 cyl;
0149     __u16 head;
0150     __u8 record;
0151 } __attribute__ ((packed));
0152 
0153 struct DE_eckd_data {
0154     struct {
0155         unsigned char perm:2;   /* Permissions on this extent */
0156         unsigned char reserved:1;
0157         unsigned char seek:2;   /* Seek control */
0158         unsigned char auth:2;   /* Access authorization */
0159         unsigned char pci:1;    /* PCI Fetch mode */
0160     } __attribute__ ((packed)) mask;
0161     struct {
0162         unsigned char mode:2;   /* Architecture mode */
0163         unsigned char ckd:1;    /* CKD Conversion */
0164         unsigned char operation:3;  /* Operation mode */
0165         unsigned char cfw:1;    /* Cache fast write */
0166         unsigned char dfw:1;    /* DASD fast write */
0167     } __attribute__ ((packed)) attributes;
0168     __u16 blk_size;     /* Blocksize */
0169     __u16 fast_write_id;
0170     __u8 ga_additional; /* Global Attributes Additional */
0171     __u8 ga_extended;   /* Global Attributes Extended   */
0172     struct ch_t beg_ext;
0173     struct ch_t end_ext;
0174     unsigned long ep_sys_time; /* Ext Parameter - System Time Stamp */
0175     __u8 ep_format;        /* Extended Parameter format byte       */
0176     __u8 ep_prio;          /* Extended Parameter priority I/O byte */
0177     __u8 ep_reserved1;     /* Extended Parameter Reserved          */
0178     __u8 ep_rec_per_track; /* Number of records on a track         */
0179     __u8 ep_reserved[4];   /* Extended Parameter Reserved          */
0180 } __attribute__ ((packed));
0181 
0182 struct LO_eckd_data {
0183     struct {
0184         unsigned char orientation:2;
0185         unsigned char operation:6;
0186     } __attribute__ ((packed)) operation;
0187     struct {
0188         unsigned char last_bytes_used:1;
0189         unsigned char reserved:6;
0190         unsigned char read_count_suffix:1;
0191     } __attribute__ ((packed)) auxiliary;
0192     __u8 unused;
0193     __u8 count;
0194     struct ch_t seek_addr;
0195     struct chr_t search_arg;
0196     __u8 sector;
0197     __u16 length;
0198 } __attribute__ ((packed));
0199 
0200 struct LRE_eckd_data {
0201     struct {
0202         unsigned char orientation:2;
0203         unsigned char operation:6;
0204     } __attribute__ ((packed)) operation;
0205     struct {
0206         unsigned char length_valid:1;
0207         unsigned char length_scope:1;
0208         unsigned char imbedded_ccw_valid:1;
0209         unsigned char check_bytes:2;
0210         unsigned char imbedded_count_valid:1;
0211         unsigned char reserved:1;
0212         unsigned char read_count_suffix:1;
0213     } __attribute__ ((packed)) auxiliary;
0214     __u8 imbedded_ccw;
0215     __u8 count;
0216     struct ch_t seek_addr;
0217     struct chr_t search_arg;
0218     __u8 sector;
0219     __u16 length;
0220     __u8 imbedded_count;
0221     __u8 extended_operation;
0222     __u16 extended_parameter_length;
0223     __u8 extended_parameter[];
0224 } __attribute__ ((packed));
0225 
0226 /* Prefix data for format 0x00 and 0x01 */
0227 struct PFX_eckd_data {
0228     unsigned char format;
0229     struct {
0230         unsigned char define_extent:1;
0231         unsigned char time_stamp:1;
0232         unsigned char verify_base:1;
0233         unsigned char hyper_pav:1;
0234         unsigned char reserved:4;
0235     } __attribute__ ((packed)) validity;
0236     __u8 base_address;
0237     __u8 aux;
0238     __u8 base_lss;
0239     __u8 reserved[7];
0240     struct DE_eckd_data define_extent;
0241     struct LRE_eckd_data locate_record;
0242 } __attribute__ ((packed));
0243 
0244 struct dasd_eckd_characteristics {
0245     __u16 cu_type;
0246     struct {
0247         unsigned char support:2;
0248         unsigned char async:1;
0249         unsigned char reserved:1;
0250         unsigned char cache_info:1;
0251         unsigned char model:3;
0252     } __attribute__ ((packed)) cu_model;
0253     __u16 dev_type;
0254     __u8 dev_model;
0255     struct {
0256         unsigned char mult_burst:1;
0257         unsigned char RT_in_LR:1;
0258         unsigned char reserved1:1;
0259         unsigned char RD_IN_LR:1;
0260         unsigned char reserved2:4;
0261         unsigned char reserved3:8;
0262         unsigned char defect_wr:1;
0263         unsigned char XRC_supported:1;
0264         unsigned char reserved4:1;
0265         unsigned char striping:1;
0266         unsigned char reserved5:4;
0267         unsigned char cfw:1;
0268         unsigned char reserved6:2;
0269         unsigned char cache:1;
0270         unsigned char dual_copy:1;
0271         unsigned char dfw:1;
0272         unsigned char reset_alleg:1;
0273         unsigned char sense_down:1;
0274     } __attribute__ ((packed)) facilities;
0275     __u8 dev_class;
0276     __u8 unit_type;
0277     __u16 no_cyl;
0278     __u16 trk_per_cyl;
0279     __u8 sec_per_trk;
0280     __u8 byte_per_track[3];
0281     __u16 home_bytes;
0282     __u8 formula;
0283     union {
0284         struct {
0285             __u8 f1;
0286             __u16 f2;
0287             __u16 f3;
0288         } __attribute__ ((packed)) f_0x01;
0289         struct {
0290             __u8 f1;
0291             __u8 f2;
0292             __u8 f3;
0293             __u8 f4;
0294             __u8 f5;
0295         } __attribute__ ((packed)) f_0x02;
0296     } __attribute__ ((packed)) factors;
0297     __u16 first_alt_trk;
0298     __u16 no_alt_trk;
0299     __u16 first_dia_trk;
0300     __u16 no_dia_trk;
0301     __u16 first_sup_trk;
0302     __u16 no_sup_trk;
0303     __u8 MDR_ID;
0304     __u8 OBR_ID;
0305     __u8 director;
0306     __u8 rd_trk_set;
0307     __u16 max_rec_zero;
0308     __u8 reserved1;
0309     __u8 RWANY_in_LR;
0310     __u8 factor6;
0311     __u8 factor7;
0312     __u8 factor8;
0313     __u8 reserved2[3];
0314     __u8 reserved3[6];
0315     __u32 long_no_cyl;
0316 } __attribute__ ((packed));
0317 
0318 /* elements of the configuration data */
0319 struct dasd_ned {
0320     struct {
0321         __u8 identifier:2;
0322         __u8 token_id:1;
0323         __u8 sno_valid:1;
0324         __u8 subst_sno:1;
0325         __u8 recNED:1;
0326         __u8 emuNED:1;
0327         __u8 reserved:1;
0328     } __attribute__ ((packed)) flags;
0329     __u8 descriptor;
0330     __u8 dev_class;
0331     __u8 reserved;
0332     __u8 dev_type[6];
0333     __u8 dev_model[3];
0334     __u8 HDA_manufacturer[3];
0335     struct {
0336         __u8 HDA_location[2];
0337         __u8 HDA_seqno[12];
0338     } serial;
0339     __u8 ID;
0340     __u8 unit_addr;
0341 } __attribute__ ((packed));
0342 
0343 struct dasd_sneq {
0344     struct {
0345         __u8 identifier:2;
0346         __u8 reserved:6;
0347     } __attribute__ ((packed)) flags;
0348     __u8 res1;
0349     __u16 format;
0350     __u8 res2[4];       /* byte  4- 7 */
0351     __u8 sua_flags;     /* byte  8    */
0352     __u8 base_unit_addr;    /* byte  9    */
0353     __u8 res3[22];      /* byte 10-31 */
0354 } __attribute__ ((packed));
0355 
0356 struct vd_sneq {
0357     struct {
0358         __u8 identifier:2;
0359         __u8 reserved:6;
0360     } __attribute__ ((packed)) flags;
0361     __u8 res1;
0362     __u16 format;
0363     __u8 res2[4];   /* byte  4- 7 */
0364     __u8 uit[16];   /* byte  8-23 */
0365     __u8 res3[8];   /* byte 24-31 */
0366 } __attribute__ ((packed));
0367 
0368 struct dasd_gneq {
0369     struct {
0370         __u8 identifier:2;
0371         __u8 reserved:6;
0372     } __attribute__ ((packed)) flags;
0373     __u8 record_selector;
0374     __u8 reserved[4];
0375     struct {
0376         __u8 value:2;
0377         __u8 number:6;
0378     } __attribute__ ((packed)) timeout;
0379     __u8 reserved3;
0380     __u16 subsystemID;
0381     __u8 reserved2[22];
0382 } __attribute__ ((packed));
0383 
0384 struct dasd_rssd_features {
0385     char feature[256];
0386 } __attribute__((packed));
0387 
0388 struct dasd_rssd_messages {
0389     __u16 length;
0390     __u8 format;
0391     __u8 code;
0392     __u32 message_id;
0393     __u8 flags;
0394     char messages[4087];
0395 } __packed;
0396 
0397 /*
0398  * Read Subsystem Data - Volume Storage Query
0399  */
0400 struct dasd_rssd_vsq {
0401     struct {
0402         __u8 tse:1;
0403         __u8 space_not_available:1;
0404         __u8 ese:1;
0405         __u8 unused:5;
0406     } __packed vol_info;
0407     __u8 unused1;
0408     __u16 extent_pool_id;
0409     __u8 warn_cap_limit;
0410     __u8 warn_cap_guaranteed;
0411     __u16 unused2;
0412     __u32 limit_capacity;
0413     __u32 guaranteed_capacity;
0414     __u32 space_allocated;
0415     __u32 space_configured;
0416     __u32 logical_capacity;
0417 } __packed;
0418 
0419 /*
0420  * Extent Pool Summary
0421  */
0422 struct dasd_ext_pool_sum {
0423     __u16 pool_id;
0424     __u8 repo_warn_thrshld;
0425     __u8 warn_thrshld;
0426     struct {
0427         __u8 type:1;            /* 0 - CKD / 1 - FB */
0428         __u8 track_space_efficient:1;
0429         __u8 extent_space_efficient:1;
0430         __u8 standard_volume:1;
0431         __u8 extent_size_valid:1;
0432         __u8 capacity_at_warnlevel:1;
0433         __u8 pool_oos:1;
0434         __u8 unused0:1;
0435         __u8 unused1;
0436     } __packed flags;
0437     struct {
0438         __u8 reserved0:1;
0439         __u8 size_1G:1;
0440         __u8 reserved1:5;
0441         __u8 size_16M:1;
0442     } __packed extent_size;
0443     __u8 unused;
0444 } __packed;
0445 
0446 /*
0447  * Read Subsystem Data-Response - Logical Configuration Query - Header
0448  */
0449 struct dasd_rssd_lcq {
0450     __u16 data_length;      /* Length of data returned */
0451     __u16 pool_count;       /* Count of extent pools returned - Max: 448 */
0452     struct {
0453         __u8 pool_info_valid:1; /* Detailed Information valid */
0454         __u8 pool_id_volume:1;
0455         __u8 pool_id_cec:1;
0456         __u8 unused0:5;
0457         __u8 unused1;
0458     } __packed header_flags;
0459     char sfi_type[6];       /* Storage Facility Image Type (EBCDIC) */
0460     char sfi_model[3];      /* Storage Facility Image Model (EBCDIC) */
0461     __u8 sfi_seq_num[10];       /* Storage Facility Image Sequence Number */
0462     __u8 reserved[7];
0463     struct dasd_ext_pool_sum ext_pool_sum[448];
0464 } __packed;
0465 
0466 struct dasd_oos_message {
0467     __u16 length;
0468     __u8 format;
0469     __u8 code;
0470     __u8 percentage_empty;
0471     __u8 reserved;
0472     __u16 ext_pool_id;
0473     __u16 token;
0474     __u8 unused[6];
0475 } __packed;
0476 
0477 struct dasd_cuir_message {
0478     __u16 length;
0479     __u8 format;
0480     __u8 code;
0481     __u32 message_id;
0482     __u8 flags;
0483     __u8 neq_map[3];
0484     __u8 ned_map;
0485     __u8 record_selector;
0486 } __packed;
0487 
0488 struct dasd_psf_cuir_response {
0489     __u8 order;
0490     __u8 flags;
0491     __u8 cc;
0492     __u8 chpid;
0493     __u16 device_nr;
0494     __u16 reserved;
0495     __u32 message_id;
0496     __u64 system_id;
0497     __u8 cssid;
0498     __u8 ssid;
0499 } __packed;
0500 
0501 struct dasd_ckd_path_group_entry {
0502     __u8 status_flags;
0503     __u8 pgid[11];
0504     __u8 sysplex_name[8];
0505     __u32 timestamp;
0506     __u32 cylinder;
0507     __u8 reserved[4];
0508 } __packed;
0509 
0510 struct dasd_ckd_host_information {
0511     __u8 access_flags;
0512     __u8 entry_size;
0513     __u16 entry_count;
0514     __u8 entry[16390];
0515 } __packed;
0516 
0517 struct dasd_psf_query_host_access {
0518     __u8 access_flag;
0519     __u8 version;
0520     __u16 CKD_length;
0521     __u16 SCSI_length;
0522     __u8 unused[10];
0523     __u8 host_access_information[16394];
0524 } __packed;
0525 
0526 /*
0527  * Perform Subsystem Function - Prepare for Read Subsystem Data
0528  */
0529 struct dasd_psf_prssd_data {
0530     unsigned char order;
0531     unsigned char flags;
0532     unsigned char reserved1;
0533     unsigned char reserved2;
0534     unsigned char lss;
0535     unsigned char volume;
0536     unsigned char suborder;
0537     unsigned char varies[5];
0538 } __attribute__ ((packed));
0539 
0540 /*
0541  * Perform Subsystem Function - Set Subsystem Characteristics
0542  */
0543 struct dasd_psf_ssc_data {
0544     unsigned char order;
0545     unsigned char flags;
0546     unsigned char cu_type[4];
0547     unsigned char suborder;
0548     unsigned char reserved[59];
0549 } __attribute__((packed));
0550 
0551 /* Maximum number of extents for a single Release Allocated Space command */
0552 #define DASD_ECKD_RAS_EXTS_MAX      110U
0553 
0554 struct dasd_dso_ras_ext_range {
0555     struct ch_t beg_ext;
0556     struct ch_t end_ext;
0557 } __packed;
0558 
0559 /*
0560  * Define Subsystem Operation - Release Allocated Space
0561  */
0562 struct dasd_dso_ras_data {
0563     __u8 order;
0564     struct {
0565         __u8 message:1;     /* Must be zero */
0566         __u8 reserved1:2;
0567         __u8 vol_type:1;    /* 0 - CKD/FBA, 1 - FB */
0568         __u8 reserved2:4;
0569     } __packed flags;
0570     /* Operation Flags to specify scope */
0571     struct {
0572         __u8 reserved1:2;
0573         /* Release Space by Extent */
0574         __u8 by_extent:1;   /* 0 - entire volume, 1 - specified extents */
0575         __u8 guarantee_init:1;
0576         __u8 force_release:1;   /* Internal - will be ignored */
0577         __u16 reserved2:11;
0578     } __packed op_flags;
0579     __u8 lss;
0580     __u8 dev_addr;
0581     __u32 reserved1;
0582     __u8 reserved2[10];
0583     __u16 nr_exts;          /* Defines number of ext_scope - max 110 */
0584     __u16 reserved3;
0585 } __packed;
0586 
0587 
0588 /*
0589  * some structures and definitions for alias handling
0590  */
0591 struct dasd_unit_address_configuration {
0592     struct {
0593         char ua_type;
0594         char base_ua;
0595     } unit[256];
0596 } __attribute__((packed));
0597 
0598 
0599 #define MAX_DEVICES_PER_LCU 256
0600 
0601 /* flags on the LCU  */
0602 #define NEED_UAC_UPDATE  0x01
0603 #define UPDATE_PENDING  0x02
0604 
0605 enum pavtype {NO_PAV, BASE_PAV, HYPER_PAV};
0606 
0607 
0608 struct alias_root {
0609     struct list_head serverlist;
0610     spinlock_t lock;
0611 };
0612 
0613 struct alias_server {
0614     struct list_head server;
0615     struct dasd_uid uid;
0616     struct list_head lculist;
0617 };
0618 
0619 struct summary_unit_check_work_data {
0620     char reason;
0621     struct dasd_device *device;
0622     struct work_struct worker;
0623 };
0624 
0625 struct read_uac_work_data {
0626     struct dasd_device *device;
0627     struct delayed_work dwork;
0628 };
0629 
0630 struct alias_lcu {
0631     struct list_head lcu;
0632     struct dasd_uid uid;
0633     enum pavtype pav;
0634     char flags;
0635     spinlock_t lock;
0636     struct list_head grouplist;
0637     struct list_head active_devices;
0638     struct list_head inactive_devices;
0639     struct dasd_unit_address_configuration *uac;
0640     struct summary_unit_check_work_data suc_data;
0641     struct read_uac_work_data ruac_data;
0642     struct dasd_ccw_req *rsu_cqr;
0643     struct completion lcu_setup;
0644 };
0645 
0646 struct alias_pav_group {
0647     struct list_head group;
0648     struct dasd_uid uid;
0649     struct alias_lcu *lcu;
0650     struct list_head baselist;
0651     struct list_head aliaslist;
0652     struct dasd_device *next;
0653 };
0654 
0655 struct dasd_conf_data {
0656     struct dasd_ned neds[5];
0657     u8 reserved[64];
0658     struct dasd_gneq gneq;
0659 } __packed;
0660 
0661 struct dasd_conf {
0662     u8 *data;
0663     int len;
0664     /* pointers to specific parts in the conf_data */
0665     struct dasd_ned *ned;
0666     struct dasd_sneq *sneq;
0667     struct vd_sneq *vdsneq;
0668     struct dasd_gneq *gneq;
0669 };
0670 
0671 struct dasd_eckd_private {
0672     struct dasd_eckd_characteristics rdc_data;
0673     struct dasd_conf conf;
0674 
0675     struct eckd_count count_area[5];
0676     int init_cqr_status;
0677     int uses_cdl;
0678     struct attrib_data_t attrib;    /* e.g. cache operations */
0679     struct dasd_rssd_features features;
0680     struct dasd_rssd_vsq vsq;
0681     struct dasd_ext_pool_sum eps;
0682     u32 real_cyl;
0683 
0684     /* alias management */
0685     struct dasd_uid uid;
0686     struct alias_pav_group *pavgroup;
0687     struct alias_lcu *lcu;
0688     int count;
0689 
0690     u32 fcx_max_data;
0691     char suc_reason;
0692 };
0693 
0694 
0695 
0696 int dasd_alias_make_device_known_to_lcu(struct dasd_device *);
0697 void dasd_alias_disconnect_device_from_lcu(struct dasd_device *);
0698 int dasd_alias_add_device(struct dasd_device *);
0699 int dasd_alias_remove_device(struct dasd_device *);
0700 struct dasd_device *dasd_alias_get_start_dev(struct dasd_device *);
0701 void dasd_alias_handle_summary_unit_check(struct work_struct *);
0702 void dasd_eckd_reset_ccw_to_base_io(struct dasd_ccw_req *);
0703 int dasd_alias_update_add_device(struct dasd_device *);
0704 #endif              /* DASD_ECKD_H */
[ Source navigation ] [ Diff markup ] [ Identifier search ] [ general search ]

This page was automatically generated by the 2.1.0 LXR engine.

The LXR team
Valid CSS 2.1! Valid HTML 4.01!