1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * zfcp device driver 4 * 5 * External function declarations. 6 * 7 * Copyright IBM Corp. 2002, 2023 8 */ 9 10 #ifndef ZFCP_EXT_H 11 #define ZFCP_EXT_H 12 13 #include <linux/types.h> 14 #include <linux/sysfs.h> 15 #include <scsi/fc/fc_els.h> 16 #include "zfcp_def.h" 17 #include "zfcp_fc.h" 18 19 /* zfcp_aux.c */ 20 extern struct zfcp_port *zfcp_get_port_by_wwpn(struct zfcp_adapter *, u64); 21 extern struct zfcp_adapter *zfcp_adapter_enqueue(struct ccw_device *); 22 extern struct zfcp_port *zfcp_port_enqueue(struct zfcp_adapter *, u64, u32, 23 u32); 24 extern void zfcp_adapter_release(struct kref *); 25 extern void zfcp_adapter_unregister(struct zfcp_adapter *); 26 27 /* zfcp_ccw.c */ 28 extern struct ccw_driver zfcp_ccw_driver; 29 extern struct zfcp_adapter *zfcp_ccw_adapter_by_cdev(struct ccw_device *); 30 extern void zfcp_ccw_adapter_put(struct zfcp_adapter *); 31 32 /* zfcp_dbf.c */ 33 extern int zfcp_dbf_adapter_register(struct zfcp_adapter *); 34 extern void zfcp_dbf_adapter_unregister(struct zfcp_adapter *); 35 extern void zfcp_dbf_rec_trig(char *, struct zfcp_adapter *, 36 struct zfcp_port *, struct scsi_device *, u8, u8); 37 extern void zfcp_dbf_rec_trig_lock(char *tag, struct zfcp_adapter *adapter, 38 struct zfcp_port *port, 39 struct scsi_device *sdev, u8 want, u8 need); 40 extern void zfcp_dbf_rec_run(char *, struct zfcp_erp_action *); 41 extern void zfcp_dbf_rec_run_lvl(int level, char *tag, 42 struct zfcp_erp_action *erp); 43 extern void zfcp_dbf_rec_run_wka(char *, struct zfcp_fc_wka_port *, u64); 44 extern void zfcp_dbf_hba_fsf_uss(char *, struct zfcp_fsf_req *); 45 extern void zfcp_dbf_hba_fsf_res(char *, int, struct zfcp_fsf_req *); 46 extern void zfcp_dbf_hba_fsf_fces(char *tag, const struct zfcp_fsf_req *req, 47 u64 wwpn, u32 fc_security_old, 48 u32 fc_security_new); 49 extern void zfcp_dbf_hba_fsf_reqid(const char *const tag, const int level, 50 struct zfcp_adapter *const adapter, 51 const u64 req_id); 52 extern void zfcp_dbf_hba_bit_err(char *, struct zfcp_fsf_req *); 53 extern void zfcp_dbf_hba_def_err(struct zfcp_adapter *, u64, u16, void **); 54 extern void zfcp_dbf_san_req(char *, struct zfcp_fsf_req *, u32); 55 extern void zfcp_dbf_san_res(char *, struct zfcp_fsf_req *); 56 extern void zfcp_dbf_san_in_els(char *, struct zfcp_fsf_req *); 57 extern void zfcp_dbf_scsi_common(char *tag, int level, struct scsi_device *sdev, 58 struct scsi_cmnd *sc, 59 struct zfcp_fsf_req *fsf); 60 extern void zfcp_dbf_scsi_eh(char *tag, struct zfcp_adapter *adapter, 61 unsigned int scsi_id, int ret); 62 63 /* zfcp_erp.c */ 64 extern void zfcp_erp_set_adapter_status(struct zfcp_adapter *, u32); 65 extern void zfcp_erp_clear_adapter_status(struct zfcp_adapter *, u32); 66 extern void zfcp_erp_port_forced_no_port_dbf(char *dbftag, 67 struct zfcp_adapter *adapter, 68 u64 port_name, u32 port_id); 69 extern void zfcp_erp_adapter_reopen(struct zfcp_adapter *, int, char *); 70 extern void zfcp_erp_adapter_shutdown(struct zfcp_adapter *, int, char *); 71 extern void zfcp_erp_set_port_status(struct zfcp_port *, u32); 72 extern void zfcp_erp_clear_port_status(struct zfcp_port *, u32); 73 extern void zfcp_erp_port_reopen(struct zfcp_port *port, int clear, 74 char *dbftag); 75 extern void zfcp_erp_port_shutdown(struct zfcp_port *, int, char *); 76 extern void zfcp_erp_port_forced_reopen(struct zfcp_port *, int, char *); 77 extern void zfcp_erp_port_forced_reopen_all(struct zfcp_adapter *adapter, 78 int clear, char *dbftag); 79 extern void zfcp_erp_set_lun_status(struct scsi_device *, u32); 80 extern void zfcp_erp_clear_lun_status(struct scsi_device *, u32); 81 extern void zfcp_erp_lun_reopen(struct scsi_device *, int, char *); 82 extern void zfcp_erp_lun_shutdown(struct scsi_device *, int, char *); 83 extern void zfcp_erp_lun_shutdown_wait(struct scsi_device *, char *); 84 extern int zfcp_erp_thread_setup(struct zfcp_adapter *); 85 extern void zfcp_erp_thread_kill(struct zfcp_adapter *); 86 extern void zfcp_erp_wait(struct zfcp_adapter *); 87 extern void zfcp_erp_notify(struct zfcp_erp_action *, unsigned long); 88 extern void zfcp_erp_timeout_handler(struct timer_list *t); 89 extern void zfcp_erp_adapter_reset_sync(struct zfcp_adapter *adapter, 90 char *dbftag); 91 92 /* zfcp_fc.c */ 93 extern struct kmem_cache *zfcp_fc_req_cache; 94 extern void zfcp_fc_enqueue_event(struct zfcp_adapter *, 95 enum fc_host_event_code event_code, u32); 96 extern void zfcp_fc_post_event(struct work_struct *); 97 extern void zfcp_fc_scan_ports(struct work_struct *); 98 extern void zfcp_fc_incoming_els(struct zfcp_fsf_req *); 99 extern void zfcp_fc_port_did_lookup(struct work_struct *); 100 extern void zfcp_fc_trigger_did_lookup(struct zfcp_port *); 101 extern void zfcp_fc_plogi_evaluate(struct zfcp_port *, struct fc_els_flogi *); 102 extern void zfcp_fc_test_link(struct zfcp_port *); 103 extern void zfcp_fc_link_test_work(struct work_struct *); 104 extern void zfcp_fc_wka_ports_force_offline(struct zfcp_fc_wka_ports *); 105 extern int zfcp_fc_gs_setup(struct zfcp_adapter *); 106 extern void zfcp_fc_gs_destroy(struct zfcp_adapter *); 107 extern int zfcp_fc_exec_bsg_job(struct bsg_job *); 108 extern int zfcp_fc_timeout_bsg_job(struct bsg_job *); 109 extern void zfcp_fc_sym_name_update(struct work_struct *); 110 extern unsigned int zfcp_fc_port_scan_backoff(void); 111 extern void zfcp_fc_conditional_port_scan(struct zfcp_adapter *); 112 extern void zfcp_fc_inverse_conditional_port_scan(struct zfcp_adapter *); 113 114 /* zfcp_fsf.c */ 115 extern struct kmem_cache *zfcp_fsf_qtcb_cache; 116 extern int zfcp_fsf_open_port(struct zfcp_erp_action *); 117 extern int zfcp_fsf_open_wka_port(struct zfcp_fc_wka_port *); 118 extern int zfcp_fsf_close_wka_port(struct zfcp_fc_wka_port *); 119 extern int zfcp_fsf_close_port(struct zfcp_erp_action *); 120 extern int zfcp_fsf_close_physical_port(struct zfcp_erp_action *); 121 extern int zfcp_fsf_open_lun(struct zfcp_erp_action *); 122 extern int zfcp_fsf_close_lun(struct zfcp_erp_action *); 123 extern int zfcp_fsf_exchange_config_data(struct zfcp_erp_action *); 124 extern int zfcp_fsf_exchange_config_data_sync(struct zfcp_qdio *, 125 struct fsf_qtcb_bottom_config *); 126 extern int zfcp_fsf_exchange_port_data(struct zfcp_erp_action *); 127 extern int zfcp_fsf_exchange_port_data_sync(struct zfcp_qdio *, 128 struct fsf_qtcb_bottom_port *); 129 extern u32 zfcp_fsf_convert_portspeed(u32 fsf_speed); 130 extern void zfcp_fsf_req_dismiss_all(struct zfcp_adapter *); 131 extern int zfcp_fsf_status_read(struct zfcp_qdio *); 132 extern int zfcp_status_read_refill(struct zfcp_adapter *adapter); 133 extern int zfcp_fsf_send_ct(struct zfcp_fc_wka_port *, struct zfcp_fsf_ct_els *, 134 mempool_t *, unsigned int); 135 extern int zfcp_fsf_send_els(struct zfcp_adapter *, u32, 136 struct zfcp_fsf_ct_els *, unsigned int); 137 extern int zfcp_fsf_fcp_cmnd(struct scsi_cmnd *); 138 extern void zfcp_fsf_req_free(struct zfcp_fsf_req *); 139 extern void zfcp_fsf_fc_host_link_down(struct zfcp_adapter *adapter); 140 extern struct zfcp_fsf_req *zfcp_fsf_fcp_task_mgmt(struct scsi_device *sdev, 141 u8 tm_flags); 142 extern struct zfcp_fsf_req *zfcp_fsf_abort_fcp_cmnd(struct scsi_cmnd *); 143 extern void zfcp_fsf_reqid_check(struct zfcp_qdio *, int); 144 enum zfcp_fsf_print_fmt { 145 ZFCP_FSF_PRINT_FMT_LIST, 146 ZFCP_FSF_PRINT_FMT_SINGLEITEM, 147 }; 148 extern ssize_t zfcp_fsf_scnprint_fc_security(char *buf, size_t size, 149 u32 fc_security, 150 enum zfcp_fsf_print_fmt fmt); 151 152 /* zfcp_qdio.c */ 153 extern int zfcp_qdio_setup(struct zfcp_adapter *); 154 extern void zfcp_qdio_destroy(struct zfcp_qdio *); 155 extern int zfcp_qdio_sbal_get(struct zfcp_qdio *); 156 extern int zfcp_qdio_send(struct zfcp_qdio *, struct zfcp_qdio_req *); 157 extern int zfcp_qdio_sbals_from_sg(struct zfcp_qdio *, struct zfcp_qdio_req *, 158 struct scatterlist *); 159 extern void zfcp_qdio_shost_update(struct zfcp_adapter *const adapter, 160 const struct zfcp_qdio *const qdio); 161 extern int zfcp_qdio_open(struct zfcp_qdio *); 162 extern void zfcp_qdio_close(struct zfcp_qdio *); 163 extern void zfcp_qdio_siosl(struct zfcp_adapter *); 164 165 /* zfcp_scsi.c */ 166 extern bool zfcp_experimental_dix; 167 extern struct scsi_transport_template *zfcp_scsi_transport_template; 168 extern int zfcp_scsi_adapter_register(struct zfcp_adapter *); 169 extern void zfcp_scsi_adapter_unregister(struct zfcp_adapter *); 170 extern struct fc_function_template zfcp_transport_functions; 171 extern void zfcp_scsi_rport_work(struct work_struct *); 172 extern void zfcp_scsi_schedule_rport_register(struct zfcp_port *); 173 extern void zfcp_scsi_schedule_rport_block(struct zfcp_port *); 174 extern void zfcp_scsi_schedule_rports_block(struct zfcp_adapter *); 175 extern void zfcp_scsi_set_prot(struct zfcp_adapter *); 176 extern void zfcp_scsi_dif_sense_error(struct scsi_cmnd *, int); 177 extern void zfcp_scsi_shost_update_config_data( 178 struct zfcp_adapter *const adapter, 179 const struct fsf_qtcb_bottom_config *const bottom, 180 const bool bottom_incomplete); 181 extern void zfcp_scsi_shost_update_port_data( 182 struct zfcp_adapter *const adapter, 183 const struct fsf_qtcb_bottom_port *const bottom); 184 185 /* zfcp_sysfs.c */ 186 extern const struct attribute_group *zfcp_sysfs_adapter_attr_groups[]; 187 extern const struct attribute_group *zfcp_unit_attr_groups[]; 188 extern const struct attribute_group *zfcp_port_attr_groups[]; 189 extern struct mutex zfcp_sysfs_port_units_mutex; 190 extern const struct attribute_group *zfcp_sysfs_sdev_attr_groups[]; 191 extern const struct attribute_group *zfcp_sysfs_shost_attr_groups[]; 192 bool zfcp_sysfs_port_is_removing(const struct zfcp_port *const port); 193 194 /* zfcp_unit.c */ 195 extern int zfcp_unit_add(struct zfcp_port *, u64); 196 extern int zfcp_unit_remove(struct zfcp_port *, u64); 197 extern struct zfcp_unit *zfcp_unit_find(struct zfcp_port *, u64); 198 extern struct scsi_device *zfcp_unit_sdev(struct zfcp_unit *unit); 199 extern void zfcp_unit_scsi_scan(struct zfcp_unit *); 200 extern void zfcp_unit_queue_scsi_scan(struct zfcp_port *); 201 extern unsigned int zfcp_unit_sdev_status(struct zfcp_unit *); 202 203 #endif /* ZFCP_EXT_H */ 204
