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_san_req(char *, struct zfcp_fsf_req *, u32); 53 extern void zfcp_dbf_san_res(char *, struct zfcp_fsf_req *); 54 extern void zfcp_dbf_san_in_els(char *, struct zfcp_fsf_req *); 55 extern void zfcp_dbf_scsi_common(char *tag, int level, struct scsi_device *sdev, 56 struct scsi_cmnd *sc, 57 struct zfcp_fsf_req *fsf); 58 extern void zfcp_dbf_scsi_eh(char *tag, struct zfcp_adapter *adapter, 59 unsigned int scsi_id, int ret); 60 61 /* zfcp_erp.c */ 62 extern void zfcp_erp_set_adapter_status(struct zfcp_adapter *, u32); 63 extern void zfcp_erp_clear_adapter_status(struct zfcp_adapter *, u32); 64 extern void zfcp_erp_port_forced_no_port_dbf(char *dbftag, 65 struct zfcp_adapter *adapter, 66 u64 port_name, u32 port_id); 67 extern void zfcp_erp_adapter_reopen(struct zfcp_adapter *, int, char *); 68 extern void zfcp_erp_adapter_shutdown(struct zfcp_adapter *, int, char *); 69 extern void zfcp_erp_set_port_status(struct zfcp_port *, u32); 70 extern void zfcp_erp_clear_port_status(struct zfcp_port *, u32); 71 extern void zfcp_erp_port_reopen(struct zfcp_port *port, int clear, 72 char *dbftag); 73 extern void zfcp_erp_port_shutdown(struct zfcp_port *, int, char *); 74 extern void zfcp_erp_port_forced_reopen(struct zfcp_port *, int, char *); 75 extern void zfcp_erp_port_forced_reopen_all(struct zfcp_adapter *adapter, 76 int clear, char *dbftag); 77 extern void zfcp_erp_set_lun_status(struct scsi_device *, u32); 78 extern void zfcp_erp_clear_lun_status(struct scsi_device *, u32); 79 extern void zfcp_erp_lun_reopen(struct scsi_device *, int, char *); 80 extern void zfcp_erp_lun_shutdown(struct scsi_device *, int, char *); 81 extern void zfcp_erp_lun_shutdown_wait(struct scsi_device *, char *); 82 extern int zfcp_erp_thread_setup(struct zfcp_adapter *); 83 extern void zfcp_erp_thread_kill(struct zfcp_adapter *); 84 extern void zfcp_erp_wait(struct zfcp_adapter *); 85 extern void zfcp_erp_notify(struct zfcp_erp_action *, unsigned long); 86 extern void zfcp_erp_timeout_handler(struct timer_list *t); 87 extern void zfcp_erp_adapter_reset_sync(struct zfcp_adapter *adapter, 88 char *dbftag); 89 90 /* zfcp_fc.c */ 91 extern struct kmem_cache *zfcp_fc_req_cache; 92 extern void zfcp_fc_enqueue_event(struct zfcp_adapter *, 93 enum fc_host_event_code event_code, u32); 94 extern void zfcp_fc_post_event(struct work_struct *); 95 extern void zfcp_fc_scan_ports(struct work_struct *); 96 extern void zfcp_fc_incoming_els(struct zfcp_fsf_req *); 97 extern void zfcp_fc_port_did_lookup(struct work_struct *); 98 extern void zfcp_fc_trigger_did_lookup(struct zfcp_port *); 99 extern void zfcp_fc_plogi_evaluate(struct zfcp_port *, struct fc_els_flogi *); 100 extern void zfcp_fc_test_link(struct zfcp_port *); 101 extern void zfcp_fc_link_test_work(struct work_struct *); 102 extern void zfcp_fc_wka_ports_force_offline(struct zfcp_fc_wka_ports *); 103 extern int zfcp_fc_gs_setup(struct zfcp_adapter *); 104 extern void zfcp_fc_gs_destroy(struct zfcp_adapter *); 105 extern int zfcp_fc_exec_bsg_job(struct bsg_job *); 106 extern int zfcp_fc_timeout_bsg_job(struct bsg_job *); 107 extern void zfcp_fc_sym_name_update(struct work_struct *); 108 extern unsigned int zfcp_fc_port_scan_backoff(void); 109 extern void zfcp_fc_conditional_port_scan(struct zfcp_adapter *); 110 extern void zfcp_fc_inverse_conditional_port_scan(struct zfcp_adapter *); 111 112 /* zfcp_fsf.c */ 113 extern struct kmem_cache *zfcp_fsf_qtcb_cache; 114 extern int zfcp_fsf_open_port(struct zfcp_erp_action *); 115 extern int zfcp_fsf_open_wka_port(struct zfcp_fc_wka_port *); 116 extern int zfcp_fsf_close_wka_port(struct zfcp_fc_wka_port *); 117 extern int zfcp_fsf_close_port(struct zfcp_erp_action *); 118 extern int zfcp_fsf_close_physical_port(struct zfcp_erp_action *); 119 extern int zfcp_fsf_open_lun(struct zfcp_erp_action *); 120 extern int zfcp_fsf_close_lun(struct zfcp_erp_action *); 121 extern int zfcp_fsf_exchange_config_data(struct zfcp_erp_action *); 122 extern int zfcp_fsf_exchange_config_data_sync(struct zfcp_qdio *, 123 struct fsf_qtcb_bottom_config *); 124 extern int zfcp_fsf_exchange_port_data(struct zfcp_erp_action *); 125 extern int zfcp_fsf_exchange_port_data_sync(struct zfcp_qdio *, 126 struct fsf_qtcb_bottom_port *); 127 extern u32 zfcp_fsf_convert_portspeed(u32 fsf_speed); 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 void zfcp_fsf_fc_host_link_down(struct zfcp_adapter *adapter); 138 extern struct zfcp_fsf_req *zfcp_fsf_fcp_task_mgmt(struct scsi_device *sdev, 139 u8 tm_flags); 140 extern struct zfcp_fsf_req *zfcp_fsf_abort_fcp_cmnd(struct scsi_cmnd *); 141 extern void zfcp_fsf_reqid_check(struct zfcp_qdio *, int); 142 enum zfcp_fsf_print_fmt { 143 ZFCP_FSF_PRINT_FMT_LIST, 144 ZFCP_FSF_PRINT_FMT_SINGLEITEM, 145 }; 146 extern ssize_t zfcp_fsf_scnprint_fc_security(char *buf, size_t size, 147 u32 fc_security, 148 enum zfcp_fsf_print_fmt fmt); 149 150 /* zfcp_qdio.c */ 151 extern int zfcp_qdio_setup(struct zfcp_adapter *); 152 extern void zfcp_qdio_destroy(struct zfcp_qdio *); 153 extern int zfcp_qdio_sbal_get(struct zfcp_qdio *); 154 extern int zfcp_qdio_send(struct zfcp_qdio *, struct zfcp_qdio_req *); 155 extern int zfcp_qdio_sbals_from_sg(struct zfcp_qdio *, struct zfcp_qdio_req *, 156 struct scatterlist *); 157 extern void zfcp_qdio_shost_update(struct zfcp_adapter *const adapter, 158 const struct zfcp_qdio *const qdio); 159 extern int zfcp_qdio_open(struct zfcp_qdio *); 160 extern void zfcp_qdio_close(struct zfcp_qdio *); 161 extern void zfcp_qdio_siosl(struct zfcp_adapter *); 162 163 /* zfcp_scsi.c */ 164 extern bool zfcp_experimental_dix; 165 extern struct scsi_transport_template *zfcp_scsi_transport_template; 166 extern int zfcp_scsi_adapter_register(struct zfcp_adapter *); 167 extern void zfcp_scsi_adapter_unregister(struct zfcp_adapter *); 168 extern struct fc_function_template zfcp_transport_functions; 169 extern void zfcp_scsi_rport_work(struct work_struct *); 170 extern void zfcp_scsi_schedule_rport_register(struct zfcp_port *); 171 extern void zfcp_scsi_schedule_rport_block(struct zfcp_port *); 172 extern void zfcp_scsi_schedule_rports_block(struct zfcp_adapter *); 173 extern void zfcp_scsi_set_prot(struct zfcp_adapter *); 174 extern void zfcp_scsi_dif_sense_error(struct scsi_cmnd *, int); 175 extern void zfcp_scsi_shost_update_config_data( 176 struct zfcp_adapter *const adapter, 177 const struct fsf_qtcb_bottom_config *const bottom, 178 const bool bottom_incomplete); 179 extern void zfcp_scsi_shost_update_port_data( 180 struct zfcp_adapter *const adapter, 181 const struct fsf_qtcb_bottom_port *const bottom); 182 183 /* zfcp_sysfs.c */ 184 extern const struct attribute_group *zfcp_unit_attr_groups[]; 185 extern struct attribute_group zfcp_sysfs_adapter_attrs; 186 extern const struct attribute_group *zfcp_port_attr_groups[]; 187 extern struct mutex zfcp_sysfs_port_units_mutex; 188 extern struct device_attribute *zfcp_sysfs_sdev_attrs[]; 189 extern struct device_attribute *zfcp_sysfs_shost_attrs[]; 190 extern const struct attribute_group zfcp_sysfs_diag_attr_group; 191 bool zfcp_sysfs_port_is_removing(const struct zfcp_port *const port); 192 193 /* zfcp_unit.c */ 194 extern int zfcp_unit_add(struct zfcp_port *, u64); 195 extern int zfcp_unit_remove(struct zfcp_port *, u64); 196 extern struct zfcp_unit *zfcp_unit_find(struct zfcp_port *, u64); 197 extern struct scsi_device *zfcp_unit_sdev(struct zfcp_unit *unit); 198 extern void zfcp_unit_scsi_scan(struct zfcp_unit *); 199 extern void zfcp_unit_queue_scsi_scan(struct zfcp_port *); 200 extern unsigned int zfcp_unit_sdev_status(struct zfcp_unit *); 201 202 #endif /* ZFCP_EXT_H */ 203