drivers/s390/scsi/zfcp_ext.h

   1 /*
   2  * zfcp device driver
   3  *
   4  * External function declarations.
   5  *
   6  * Copyright IBM Corporation 2002, 2008
   7  */
   8
   9 #ifndef ZFCP_EXT_H
  10 #define ZFCP_EXT_H
  11
  12 #include "zfcp_def.h"
  13
  14 extern struct zfcp_data zfcp_data;
  15
  16 /******************************** SYSFS  *************************************/
  17 extern int  zfcp_sysfs_adapter_create_files(struct device *);
  18 extern void zfcp_sysfs_adapter_remove_files(struct device *);
  19 extern int  zfcp_sysfs_port_create_files(struct device *, u32);
  20 extern void zfcp_sysfs_port_remove_files(struct device *, u32);
  21 extern int  zfcp_sysfs_unit_create_files(struct device *);
  22 extern void zfcp_sysfs_unit_remove_files(struct device *);
  23 extern void zfcp_sysfs_port_release(struct device *);
  24 extern void zfcp_sysfs_unit_release(struct device *);
  25
  26 /**************************** CONFIGURATION  *********************************/
  27 extern struct zfcp_unit *zfcp_get_unit_by_lun(struct zfcp_port *, fcp_lun_t);
  28 extern struct zfcp_port *zfcp_get_port_by_wwpn(struct zfcp_adapter *, wwn_t);
  29 extern struct zfcp_port *zfcp_get_port_by_did(struct zfcp_adapter *, u32);
  30 struct zfcp_adapter *zfcp_get_adapter_by_busid(char *);
  31 extern struct zfcp_adapter *zfcp_adapter_enqueue(struct ccw_device *);
  32 extern int    zfcp_adapter_debug_register(struct zfcp_adapter *);
  33 extern void   zfcp_adapter_dequeue(struct zfcp_adapter *);
  34 extern void   zfcp_adapter_debug_unregister(struct zfcp_adapter *);
  35 extern struct zfcp_port *zfcp_port_enqueue(struct zfcp_adapter *, wwn_t,
  36                                            u32, u32);
  37 extern void   zfcp_port_dequeue(struct zfcp_port *);
  38 extern struct zfcp_unit *zfcp_unit_enqueue(struct zfcp_port *, fcp_lun_t);
  39 extern void   zfcp_unit_dequeue(struct zfcp_unit *);
  40 extern int zfcp_scan_ports(struct zfcp_adapter *);
  41 extern void _zfcp_scan_ports_later(struct work_struct *work);
  42
  43 /******************************* S/390 IO ************************************/
  44 extern int  zfcp_ccw_register(void);
  45
  46 extern int  zfcp_qdio_allocate(struct zfcp_adapter *);
  47 extern void zfcp_qdio_free(struct zfcp_adapter *);
  48 extern int  zfcp_qdio_send(struct zfcp_fsf_req *fsf_req);
  49
  50 extern volatile struct qdio_buffer_element *zfcp_qdio_sbale_req
  51         (struct zfcp_fsf_req *);
  52 extern volatile struct qdio_buffer_element *zfcp_qdio_sbale_curr
  53         (struct zfcp_fsf_req *);
  54 extern int zfcp_qdio_sbals_from_sg
  55         (struct zfcp_fsf_req *, unsigned long, struct scatterlist *, int);
  56 extern int zfcp_qdio_open(struct zfcp_adapter *adapter);
  57 extern void zfcp_qdio_close(struct zfcp_adapter *adapter);
  58 /******************************** FSF ****************************************/
  59 extern int  zfcp_fsf_open_port(struct zfcp_erp_action *);
  60 extern int  zfcp_fsf_close_port(struct zfcp_erp_action *);
  61 extern int  zfcp_fsf_close_physical_port(struct zfcp_erp_action *);
  62
  63 extern int  zfcp_fsf_open_unit(struct zfcp_erp_action *);
  64 extern int  zfcp_fsf_close_unit(struct zfcp_erp_action *);
  65
  66 extern int  zfcp_fsf_exchange_config_data(struct zfcp_erp_action *);
  67 extern int  zfcp_fsf_exchange_config_data_sync(struct zfcp_adapter *,
  68                                               struct fsf_qtcb_bottom_config *);
  69 extern int  zfcp_fsf_exchange_port_data(struct zfcp_erp_action *);
  70 extern int  zfcp_fsf_exchange_port_data_sync(struct zfcp_adapter *,
  71                                              struct fsf_qtcb_bottom_port *);
  72 extern struct zfcp_fsf_req *zfcp_fsf_control_file(struct zfcp_adapter *adapter,
  73                                            struct zfcp_fsf_cfdc *fsf_cfdc);
  74 extern void zfcp_fsf_start_timer(struct zfcp_fsf_req *, unsigned long);
  75 extern void zfcp_erp_start_timer(struct zfcp_fsf_req *);
  76 extern void zfcp_fsf_req_dismiss_all(struct zfcp_adapter *);
  77 extern int  zfcp_fsf_status_read(struct zfcp_adapter *, int);
  78 extern int zfcp_status_read_refill(struct zfcp_adapter *adapter);
  79 extern int zfcp_fsf_req_create(struct zfcp_adapter *, u32, int, mempool_t *,
  80                                unsigned long *, struct zfcp_fsf_req **)
  81         __acquires(adapter->req_q.lock);
  82 extern int zfcp_fsf_send_ct(struct zfcp_send_ct *, mempool_t *,
  83                             struct zfcp_erp_action *);
  84 extern int zfcp_fsf_send_els(struct zfcp_send_els *);
  85 extern int  zfcp_fsf_send_fcp_command_task(struct zfcp_adapter *,
  86                                            struct zfcp_unit *,
  87                                            struct scsi_cmnd *, int, int);
  88 extern int  zfcp_fsf_req_complete(struct zfcp_fsf_req *);
  89 extern void zfcp_fsf_req_free(struct zfcp_fsf_req *);
  90 extern struct zfcp_fsf_req *zfcp_fsf_send_fcp_command_task_management(
  91         struct zfcp_adapter *, struct zfcp_unit *, u8, int);
  92 extern struct zfcp_fsf_req *zfcp_fsf_abort_fcp_command(
  93         unsigned long, struct zfcp_adapter *, struct zfcp_unit *, int);
  94
  95 /******************************* FC/FCP **************************************/
  96 extern void zfcp_fc_incoming_els(struct zfcp_fsf_req *);
  97 extern int  zfcp_fc_ns_gid_pn_request(struct zfcp_erp_action *);
  98 extern void zfcp_fc_plogi_evaluate(struct zfcp_port *, struct fsf_plogi *);
  99 extern void  zfcp_test_link(struct zfcp_port *);
 100
 101 /******************************* SCSI ****************************************/
 102 extern int  zfcp_adapter_scsi_register(struct zfcp_adapter *);
 103 extern void zfcp_adapter_scsi_unregister(struct zfcp_adapter *);
 104 extern void zfcp_set_fcp_dl(struct fcp_cmnd_iu *, fcp_dl_t);
 105 extern char *zfcp_get_fcp_rsp_info_ptr(struct fcp_rsp_iu *);
 106 extern void set_host_byte(int *, char);
 107 extern void set_driver_byte(int *, char);
 108 extern char *zfcp_get_fcp_sns_info_ptr(struct fcp_rsp_iu *);
 109 extern fcp_dl_t zfcp_get_fcp_dl(struct fcp_cmnd_iu *);
 110
 111 extern int zfcp_scsi_command_async(struct zfcp_adapter *,struct zfcp_unit *,
 112                                    struct scsi_cmnd *, int);
 113 extern int zfcp_scsi_command_sync(struct zfcp_unit *, struct scsi_cmnd *, int);
 114 extern struct fc_function_template zfcp_transport_functions;
 115
 116 /******************************** ERP ****************************************/
 117 extern void zfcp_erp_modify_adapter_status(struct zfcp_adapter *, u8, void *,
 118                                            u32, int);
 119 extern int  zfcp_erp_adapter_reopen(struct zfcp_adapter *, int, u8, void *);
 120 extern int  zfcp_erp_adapter_shutdown(struct zfcp_adapter *, int, u8, void *);
 121 extern void zfcp_erp_adapter_failed(struct zfcp_adapter *, u8, void *);
 122
 123 extern void zfcp_erp_modify_port_status(struct zfcp_port *, u8, void *, u32,
 124                                         int);
 125 extern int  zfcp_erp_port_reopen(struct zfcp_port *, int, u8, void *);
 126 extern int  zfcp_erp_port_shutdown(struct zfcp_port *, int, u8, void *);
 127 extern int  zfcp_erp_port_forced_reopen(struct zfcp_port *, int, u8, void *);
 128 extern void zfcp_erp_port_failed(struct zfcp_port *, u8, void *);
 129 extern int  zfcp_erp_port_reopen_all(struct zfcp_adapter *, int, u8, void *);
 130
 131 extern void zfcp_erp_modify_unit_status(struct zfcp_unit *, u8, void *, u32,
 132                                         int);
 133 extern int  zfcp_erp_unit_reopen(struct zfcp_unit *, int, u8, void *);
 134 extern int  zfcp_erp_unit_shutdown(struct zfcp_unit *, int, u8, void *);
 135 extern void zfcp_erp_unit_failed(struct zfcp_unit *, u8, void *);
 136
 137 extern int  zfcp_erp_thread_setup(struct zfcp_adapter *);
 138 extern int  zfcp_erp_thread_kill(struct zfcp_adapter *);
 139 extern int  zfcp_erp_wait(struct zfcp_adapter *);
 140 extern void zfcp_erp_async_handler(struct zfcp_erp_action *, unsigned long);
 141
 142 extern void zfcp_erp_port_boxed(struct zfcp_port *, u8 id, void *ref);
 143 extern void zfcp_erp_unit_boxed(struct zfcp_unit *, u8 id, void *ref);
 144 extern void zfcp_erp_port_access_denied(struct zfcp_port *, u8 id, void *ref);
 145 extern void zfcp_erp_unit_access_denied(struct zfcp_unit *, u8 id, void *ref);
 146 extern void zfcp_erp_adapter_access_changed(struct zfcp_adapter *, u8, void *);
 147 extern void zfcp_erp_port_access_changed(struct zfcp_port *, u8, void *);
 148 extern void zfcp_erp_unit_access_changed(struct zfcp_unit *, u8, void *);
 149
 150 /******************************** AUX ****************************************/
 151 extern void zfcp_sg_free_table(struct scatterlist *sg, int count);
 152 extern int  zfcp_sg_setup_table(struct scatterlist *sg, int count);
 153 extern void zfcp_rec_dbf_event_thread(u8 id, struct zfcp_adapter *adapter);
 154 extern void zfcp_rec_dbf_event_thread_lock(u8 id, struct zfcp_adapter *adapter);
 155 extern void zfcp_rec_dbf_event_adapter(u8 id, void *ref, struct zfcp_adapter *);
 156 extern void zfcp_rec_dbf_event_port(u8 id, void *ref, struct zfcp_port *port);
 157 extern void zfcp_rec_dbf_event_unit(u8 id, void *ref, struct zfcp_unit *unit);
 158 extern void zfcp_rec_dbf_event_trigger(u8 id, void *ref, u8 want, u8 need,
 159                                        void *action, struct zfcp_adapter *,
 160                                        struct zfcp_port *, struct zfcp_unit *);
 161 extern void zfcp_rec_dbf_event_action(u8 id, struct zfcp_erp_action *);
 162
 163 extern void zfcp_hba_dbf_event_fsf_response(struct zfcp_fsf_req *);
 164 extern void zfcp_hba_dbf_event_fsf_unsol(const char *, struct zfcp_adapter *,
 165                                          struct fsf_status_read_buffer *);
 166 extern void zfcp_hba_dbf_event_qdio(struct zfcp_adapter *,
 167                                     unsigned int, unsigned int, unsigned int,
 168                                     int, int);
 169
 170 extern void zfcp_san_dbf_event_ct_request(struct zfcp_fsf_req *);
 171 extern void zfcp_san_dbf_event_ct_response(struct zfcp_fsf_req *);
 172 extern void zfcp_san_dbf_event_els_request(struct zfcp_fsf_req *);
 173 extern void zfcp_san_dbf_event_els_response(struct zfcp_fsf_req *);
 174 extern void zfcp_san_dbf_event_incoming_els(struct zfcp_fsf_req *);
 175
 176 extern void zfcp_scsi_dbf_event_result(const char *, int, struct zfcp_adapter *,
 177                                        struct scsi_cmnd *,
 178                                        struct zfcp_fsf_req *);
 179 extern void zfcp_scsi_dbf_event_abort(const char *, struct zfcp_adapter *,
 180                                       struct scsi_cmnd *, struct zfcp_fsf_req *,
 181                                       unsigned long);
 182 extern void zfcp_scsi_dbf_event_devreset(const char *, u8, struct zfcp_unit *,
 183                                          struct scsi_cmnd *);
 184 extern int zfcp_reqlist_isempty(struct zfcp_adapter *);
 185
 186 extern struct miscdevice zfcp_cfdc_misc;
 187
 188 #endif  /* ZFCP_EXT_H */