drivers/s390/scsi/zfcp_ext.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * zfcp device driver
   4  *
   5  * External function declarations.
   6  *
   7  * Copyright IBM Corp. 2002, 2020
   8  */
   9
  10 #ifndef ZFCP_EXT_H
  11 #define ZFCP_EXT_H
  12
  13 #include <linux/types.h>
  14 #include <scsi/fc/fc_els.h>
  15 #include "zfcp_def.h"
  16 #include "zfcp_fc.h"
  17
  18 /* zfcp_aux.c */
  19 extern struct zfcp_port *zfcp_get_port_by_wwpn(struct zfcp_adapter *, u64);
  20 extern struct zfcp_adapter *zfcp_adapter_enqueue(struct ccw_device *);
  21 extern struct zfcp_port *zfcp_port_enqueue(struct zfcp_adapter *, u64, u32,
  22                                            u32);
  23 extern void zfcp_sg_free_table(struct scatterlist *, int);
  24 extern int zfcp_sg_setup_table(struct scatterlist *, int);
  25 extern void zfcp_adapter_release(struct kref *);
  26 extern void zfcp_adapter_unregister(struct zfcp_adapter *);
  27
  28 /* zfcp_ccw.c */
  29 extern struct ccw_driver zfcp_ccw_driver;
  30 extern struct zfcp_adapter *zfcp_ccw_adapter_by_cdev(struct ccw_device *);
  31 extern void zfcp_ccw_adapter_put(struct zfcp_adapter *);
  32
  33 /* zfcp_dbf.c */
  34 extern int zfcp_dbf_adapter_register(struct zfcp_adapter *);
  35 extern void zfcp_dbf_adapter_unregister(struct zfcp_adapter *);
  36 extern void zfcp_dbf_rec_trig(char *, struct zfcp_adapter *,
  37                               struct zfcp_port *, struct scsi_device *, u8, u8);
  38 extern void zfcp_dbf_rec_trig_lock(char *tag, struct zfcp_adapter *adapter,
  39                                    struct zfcp_port *port,
  40                                    struct scsi_device *sdev, u8 want, u8 need);
  41 extern void zfcp_dbf_rec_run(char *, struct zfcp_erp_action *);
  42 extern void zfcp_dbf_rec_run_lvl(int level, char *tag,
  43                                  struct zfcp_erp_action *erp);
  44 extern void zfcp_dbf_rec_run_wka(char *, struct zfcp_fc_wka_port *, u64);
  45 extern void zfcp_dbf_hba_fsf_uss(char *, struct zfcp_fsf_req *);
  46 extern void zfcp_dbf_hba_fsf_res(char *, int, struct zfcp_fsf_req *);
  47 extern void zfcp_dbf_hba_fsf_fces(char *tag, const struct zfcp_fsf_req *req,
  48                                   u64 wwpn, u32 fc_security_old,
  49                                   u32 fc_security_new);
  50 extern void zfcp_dbf_hba_bit_err(char *, struct zfcp_fsf_req *);
  51 extern void zfcp_dbf_hba_def_err(struct zfcp_adapter *, u64, u16, void **);
  52 extern void zfcp_dbf_hba_basic(char *, struct zfcp_adapter *);
  53 extern void zfcp_dbf_san_req(char *, struct zfcp_fsf_req *, u32);
  54 extern void zfcp_dbf_san_res(char *, struct zfcp_fsf_req *);
  55 extern void zfcp_dbf_san_in_els(char *, struct zfcp_fsf_req *);
  56 extern void zfcp_dbf_scsi_common(char *tag, int level, struct scsi_device *sdev,
  57                                  struct scsi_cmnd *sc,
  58                                  struct zfcp_fsf_req *fsf);
  59 extern void zfcp_dbf_scsi_eh(char *tag, struct zfcp_adapter *adapter,
  60                              unsigned int scsi_id, int ret);
  61
  62 /* zfcp_erp.c */
  63 extern void zfcp_erp_set_adapter_status(struct zfcp_adapter *, u32);
  64 extern void zfcp_erp_clear_adapter_status(struct zfcp_adapter *, u32);
  65 extern void zfcp_erp_port_forced_no_port_dbf(char *dbftag,
  66                                              struct zfcp_adapter *adapter,
  67                                              u64 port_name, u32 port_id);
  68 extern void zfcp_erp_adapter_reopen(struct zfcp_adapter *, int, char *);
  69 extern void zfcp_erp_adapter_shutdown(struct zfcp_adapter *, int, char *);
  70 extern void zfcp_erp_set_port_status(struct zfcp_port *, u32);
  71 extern void zfcp_erp_clear_port_status(struct zfcp_port *, u32);
  72 extern void zfcp_erp_port_reopen(struct zfcp_port *port, int clear,
  73                                  char *dbftag);
  74 extern void zfcp_erp_port_shutdown(struct zfcp_port *, int, char *);
  75 extern void zfcp_erp_port_forced_reopen(struct zfcp_port *, int, char *);
  76 extern void zfcp_erp_port_forced_reopen_all(struct zfcp_adapter *adapter,
  77                                             int clear, char *dbftag);
  78 extern void zfcp_erp_set_lun_status(struct scsi_device *, u32);
  79 extern void zfcp_erp_clear_lun_status(struct scsi_device *, u32);
  80 extern void zfcp_erp_lun_reopen(struct scsi_device *, int, char *);
  81 extern void zfcp_erp_lun_shutdown(struct scsi_device *, int, char *);
  82 extern void zfcp_erp_lun_shutdown_wait(struct scsi_device *, char *);
  83 extern int  zfcp_erp_thread_setup(struct zfcp_adapter *);
  84 extern void zfcp_erp_thread_kill(struct zfcp_adapter *);
  85 extern void zfcp_erp_wait(struct zfcp_adapter *);
  86 extern void zfcp_erp_notify(struct zfcp_erp_action *, unsigned long);
  87 extern void zfcp_erp_timeout_handler(struct timer_list *t);
  88 extern void zfcp_erp_adapter_reset_sync(struct zfcp_adapter *adapter,
  89                                         char *dbftag);
  90
  91 /* zfcp_fc.c */
  92 extern struct kmem_cache *zfcp_fc_req_cache;
  93 extern void zfcp_fc_enqueue_event(struct zfcp_adapter *,
  94                                 enum fc_host_event_code event_code, u32);
  95 extern void zfcp_fc_post_event(struct work_struct *);
  96 extern void zfcp_fc_scan_ports(struct work_struct *);
  97 extern void zfcp_fc_incoming_els(struct zfcp_fsf_req *);
  98 extern void zfcp_fc_port_did_lookup(struct work_struct *);
  99 extern void zfcp_fc_trigger_did_lookup(struct zfcp_port *);
 100 extern void zfcp_fc_plogi_evaluate(struct zfcp_port *, struct fc_els_flogi *);
 101 extern void zfcp_fc_test_link(struct zfcp_port *);
 102 extern void zfcp_fc_link_test_work(struct work_struct *);
 103 extern void zfcp_fc_wka_ports_force_offline(struct zfcp_fc_wka_ports *);
 104 extern int zfcp_fc_gs_setup(struct zfcp_adapter *);
 105 extern void zfcp_fc_gs_destroy(struct zfcp_adapter *);
 106 extern int zfcp_fc_exec_bsg_job(struct bsg_job *);
 107 extern int zfcp_fc_timeout_bsg_job(struct bsg_job *);
 108 extern void zfcp_fc_sym_name_update(struct work_struct *);
 109 extern unsigned int zfcp_fc_port_scan_backoff(void);
 110 extern void zfcp_fc_conditional_port_scan(struct zfcp_adapter *);
 111 extern void zfcp_fc_inverse_conditional_port_scan(struct zfcp_adapter *);
 112
 113 /* zfcp_fsf.c */
 114 extern struct kmem_cache *zfcp_fsf_qtcb_cache;
 115 extern int zfcp_fsf_open_port(struct zfcp_erp_action *);
 116 extern int zfcp_fsf_open_wka_port(struct zfcp_fc_wka_port *);
 117 extern int zfcp_fsf_close_wka_port(struct zfcp_fc_wka_port *);
 118 extern int zfcp_fsf_close_port(struct zfcp_erp_action *);
 119 extern int zfcp_fsf_close_physical_port(struct zfcp_erp_action *);
 120 extern int zfcp_fsf_open_lun(struct zfcp_erp_action *);
 121 extern int zfcp_fsf_close_lun(struct zfcp_erp_action *);
 122 extern int zfcp_fsf_exchange_config_data(struct zfcp_erp_action *);
 123 extern int zfcp_fsf_exchange_config_data_sync(struct zfcp_qdio *,
 124                                               struct fsf_qtcb_bottom_config *);
 125 extern int zfcp_fsf_exchange_port_data(struct zfcp_erp_action *);
 126 extern int zfcp_fsf_exchange_port_data_sync(struct zfcp_qdio *,
 127                                             struct fsf_qtcb_bottom_port *);
 128 extern void zfcp_fsf_req_dismiss_all(struct zfcp_adapter *);
 129 extern int zfcp_fsf_status_read(struct zfcp_qdio *);
 130 extern int zfcp_status_read_refill(struct zfcp_adapter *adapter);
 131 extern int zfcp_fsf_send_ct(struct zfcp_fc_wka_port *, struct zfcp_fsf_ct_els *,
 132                             mempool_t *, unsigned int);
 133 extern int zfcp_fsf_send_els(struct zfcp_adapter *, u32,
 134                              struct zfcp_fsf_ct_els *, unsigned int);
 135 extern int zfcp_fsf_fcp_cmnd(struct scsi_cmnd *);
 136 extern void zfcp_fsf_req_free(struct zfcp_fsf_req *);
 137 extern struct zfcp_fsf_req *zfcp_fsf_fcp_task_mgmt(struct scsi_device *sdev,
 138                                                    u8 tm_flags);
 139 extern struct zfcp_fsf_req *zfcp_fsf_abort_fcp_cmnd(struct scsi_cmnd *);
 140 extern void zfcp_fsf_reqid_check(struct zfcp_qdio *, int);
 141 enum zfcp_fsf_print_fmt {
 142         ZFCP_FSF_PRINT_FMT_LIST,
 143         ZFCP_FSF_PRINT_FMT_SINGLEITEM,
 144 };
 145 extern ssize_t zfcp_fsf_scnprint_fc_security(char *buf, size_t size,
 146                                              u32 fc_security,
 147                                              enum zfcp_fsf_print_fmt fmt);
 148
 149 /* zfcp_qdio.c */
 150 extern int zfcp_qdio_setup(struct zfcp_adapter *);
 151 extern void zfcp_qdio_destroy(struct zfcp_qdio *);
 152 extern int zfcp_qdio_sbal_get(struct zfcp_qdio *);
 153 extern int zfcp_qdio_send(struct zfcp_qdio *, struct zfcp_qdio_req *);
 154 extern int zfcp_qdio_sbals_from_sg(struct zfcp_qdio *, struct zfcp_qdio_req *,
 155                                    struct scatterlist *);
 156 extern int zfcp_qdio_open(struct zfcp_qdio *);
 157 extern void zfcp_qdio_close(struct zfcp_qdio *);
 158 extern void zfcp_qdio_siosl(struct zfcp_adapter *);
 159
 160 /* zfcp_scsi.c */
 161 extern bool zfcp_experimental_dix;
 162 extern struct scsi_transport_template *zfcp_scsi_transport_template;
 163 extern int zfcp_scsi_adapter_register(struct zfcp_adapter *);
 164 extern void zfcp_scsi_adapter_unregister(struct zfcp_adapter *);
 165 extern struct fc_function_template zfcp_transport_functions;
 166 extern void zfcp_scsi_rport_work(struct work_struct *);
 167 extern void zfcp_scsi_schedule_rport_register(struct zfcp_port *);
 168 extern void zfcp_scsi_schedule_rport_block(struct zfcp_port *);
 169 extern void zfcp_scsi_schedule_rports_block(struct zfcp_adapter *);
 170 extern void zfcp_scsi_set_prot(struct zfcp_adapter *);
 171 extern void zfcp_scsi_dif_sense_error(struct scsi_cmnd *, int);
 172
 173 /* zfcp_sysfs.c */
 174 extern const struct attribute_group *zfcp_unit_attr_groups[];
 175 extern struct attribute_group zfcp_sysfs_adapter_attrs;
 176 extern const struct attribute_group *zfcp_port_attr_groups[];
 177 extern struct mutex zfcp_sysfs_port_units_mutex;
 178 extern struct device_attribute *zfcp_sysfs_sdev_attrs[];
 179 extern struct device_attribute *zfcp_sysfs_shost_attrs[];
 180 extern const struct attribute_group zfcp_sysfs_diag_attr_group;
 181 bool zfcp_sysfs_port_is_removing(const struct zfcp_port *const port);
 182
 183 /* zfcp_unit.c */
 184 extern int zfcp_unit_add(struct zfcp_port *, u64);
 185 extern int zfcp_unit_remove(struct zfcp_port *, u64);
 186 extern struct zfcp_unit *zfcp_unit_find(struct zfcp_port *, u64);
 187 extern struct scsi_device *zfcp_unit_sdev(struct zfcp_unit *unit);
 188 extern void zfcp_unit_scsi_scan(struct zfcp_unit *);
 189 extern void zfcp_unit_queue_scsi_scan(struct zfcp_port *);
 190 extern unsigned int zfcp_unit_sdev_status(struct zfcp_unit *);
 191
 192 #endif  /* ZFCP_EXT_H */