1 /* 2 * This file is part of the zfcp device driver for 3 * FCP adapters for IBM System z9 and zSeries. 4 * 5 * (C) Copyright IBM Corp. 2002, 2006 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License as published by 9 * the Free Software Foundation; either version 2, or (at your option) 10 * any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 20 */ 21 22 #ifndef ZFCP_EXT_H 23 #define ZFCP_EXT_H 24 25 #include "zfcp_def.h" 26 27 extern struct zfcp_data zfcp_data; 28 29 /******************************** SYSFS *************************************/ 30 extern int zfcp_sysfs_driver_create_files(struct device_driver *); 31 extern void zfcp_sysfs_driver_remove_files(struct device_driver *); 32 extern int zfcp_sysfs_adapter_create_files(struct device *); 33 extern void zfcp_sysfs_adapter_remove_files(struct device *); 34 extern int zfcp_sysfs_port_create_files(struct device *, u32); 35 extern void zfcp_sysfs_port_remove_files(struct device *, u32); 36 extern int zfcp_sysfs_unit_create_files(struct device *); 37 extern void zfcp_sysfs_unit_remove_files(struct device *); 38 extern void zfcp_sysfs_port_release(struct device *); 39 extern void zfcp_sysfs_unit_release(struct device *); 40 41 /**************************** CONFIGURATION *********************************/ 42 extern struct zfcp_unit *zfcp_get_unit_by_lun(struct zfcp_port *, fcp_lun_t); 43 extern struct zfcp_port *zfcp_get_port_by_wwpn(struct zfcp_adapter *, wwn_t); 44 extern struct zfcp_port *zfcp_get_port_by_did(struct zfcp_adapter *, u32); 45 struct zfcp_adapter *zfcp_get_adapter_by_busid(char *); 46 extern struct zfcp_adapter *zfcp_adapter_enqueue(struct ccw_device *); 47 extern int zfcp_adapter_debug_register(struct zfcp_adapter *); 48 extern void zfcp_adapter_dequeue(struct zfcp_adapter *); 49 extern void zfcp_adapter_debug_unregister(struct zfcp_adapter *); 50 extern struct zfcp_port *zfcp_port_enqueue(struct zfcp_adapter *, wwn_t, 51 u32, u32); 52 extern void zfcp_port_dequeue(struct zfcp_port *); 53 extern struct zfcp_unit *zfcp_unit_enqueue(struct zfcp_port *, fcp_lun_t); 54 extern void zfcp_unit_dequeue(struct zfcp_unit *); 55 56 /******************************* S/390 IO ************************************/ 57 extern int zfcp_ccw_register(void); 58 extern void zfcp_ccw_unregister(void); 59 60 extern void zfcp_qdio_zero_sbals(struct qdio_buffer **, int, int); 61 extern int zfcp_qdio_allocate(struct zfcp_adapter *); 62 extern int zfcp_qdio_allocate_queues(struct zfcp_adapter *); 63 extern void zfcp_qdio_free_queues(struct zfcp_adapter *); 64 extern int zfcp_qdio_determine_pci(struct zfcp_qdio_queue *, 65 struct zfcp_fsf_req *); 66 extern int zfcp_qdio_reqid_check(struct zfcp_adapter *, void *); 67 68 extern volatile struct qdio_buffer_element *zfcp_qdio_sbale_req 69 (struct zfcp_fsf_req *, int, int); 70 extern volatile struct qdio_buffer_element *zfcp_qdio_sbale_curr 71 (struct zfcp_fsf_req *); 72 extern int zfcp_qdio_sbals_from_sg 73 (struct zfcp_fsf_req *, unsigned long, struct scatterlist *, int, int); 74 extern int zfcp_qdio_sbals_from_scsicmnd 75 (struct zfcp_fsf_req *, unsigned long, struct scsi_cmnd *); 76 77 78 /******************************** FSF ****************************************/ 79 extern int zfcp_fsf_open_port(struct zfcp_erp_action *); 80 extern int zfcp_fsf_close_port(struct zfcp_erp_action *); 81 extern int zfcp_fsf_close_physical_port(struct zfcp_erp_action *); 82 83 extern int zfcp_fsf_open_unit(struct zfcp_erp_action *); 84 extern int zfcp_fsf_close_unit(struct zfcp_erp_action *); 85 86 extern int zfcp_fsf_exchange_config_data(struct zfcp_erp_action *); 87 extern int zfcp_fsf_exchange_port_data(struct zfcp_erp_action *, 88 struct zfcp_adapter *, 89 struct fsf_qtcb_bottom_port *); 90 extern int zfcp_fsf_control_file(struct zfcp_adapter *, struct zfcp_fsf_req **, 91 u32, u32, struct zfcp_sg_list *); 92 extern void zfcp_fsf_request_timeout_handler(unsigned long); 93 extern void zfcp_fsf_scsi_er_timeout_handler(unsigned long); 94 extern int zfcp_fsf_req_dismiss_all(struct zfcp_adapter *); 95 extern int zfcp_fsf_status_read(struct zfcp_adapter *, int); 96 extern int zfcp_fsf_req_create(struct zfcp_adapter *, u32, int, mempool_t *, 97 unsigned long *, struct zfcp_fsf_req **); 98 extern int zfcp_fsf_send_ct(struct zfcp_send_ct *, mempool_t *, 99 struct zfcp_erp_action *); 100 extern int zfcp_fsf_send_els(struct zfcp_send_els *); 101 extern int zfcp_fsf_send_fcp_command_task(struct zfcp_adapter *, 102 struct zfcp_unit *, 103 struct scsi_cmnd *, 104 struct timer_list*, int); 105 extern int zfcp_fsf_req_complete(struct zfcp_fsf_req *); 106 extern void zfcp_fsf_incoming_els(struct zfcp_fsf_req *); 107 extern void zfcp_fsf_req_free(struct zfcp_fsf_req *); 108 extern struct zfcp_fsf_req *zfcp_fsf_send_fcp_command_task_management( 109 struct zfcp_adapter *, struct zfcp_unit *, u8, int); 110 extern struct zfcp_fsf_req *zfcp_fsf_abort_fcp_command( 111 unsigned long, struct zfcp_adapter *, struct zfcp_unit *, int); 112 113 /******************************* FC/FCP **************************************/ 114 extern int zfcp_nameserver_enqueue(struct zfcp_adapter *); 115 extern int zfcp_ns_gid_pn_request(struct zfcp_erp_action *); 116 extern int zfcp_check_ct_response(struct ct_hdr *); 117 extern int zfcp_handle_els_rjt(u32, struct zfcp_ls_rjt_par *); 118 extern void zfcp_plogi_evaluate(struct zfcp_port *, struct fsf_plogi *); 119 120 /******************************* SCSI ****************************************/ 121 extern int zfcp_adapter_scsi_register(struct zfcp_adapter *); 122 extern void zfcp_adapter_scsi_unregister(struct zfcp_adapter *); 123 extern void zfcp_set_fcp_dl(struct fcp_cmnd_iu *, fcp_dl_t); 124 extern char *zfcp_get_fcp_rsp_info_ptr(struct fcp_rsp_iu *); 125 extern void set_host_byte(u32 *, char); 126 extern void set_driver_byte(u32 *, char); 127 extern char *zfcp_get_fcp_sns_info_ptr(struct fcp_rsp_iu *); 128 extern void zfcp_fsf_start_scsi_er_timer(struct zfcp_adapter *); 129 extern fcp_dl_t zfcp_get_fcp_dl(struct fcp_cmnd_iu *); 130 131 extern int zfcp_scsi_command_async(struct zfcp_adapter *,struct zfcp_unit *, 132 struct scsi_cmnd *, struct timer_list *); 133 extern int zfcp_scsi_command_sync(struct zfcp_unit *, struct scsi_cmnd *, 134 struct timer_list *); 135 extern struct scsi_transport_template *zfcp_transport_template; 136 extern struct fc_function_template zfcp_transport_functions; 137 138 /******************************** ERP ****************************************/ 139 extern void zfcp_erp_modify_adapter_status(struct zfcp_adapter *, u32, int); 140 extern int zfcp_erp_adapter_reopen(struct zfcp_adapter *, int); 141 extern int zfcp_erp_adapter_shutdown(struct zfcp_adapter *, int); 142 extern void zfcp_erp_adapter_failed(struct zfcp_adapter *); 143 144 extern void zfcp_erp_modify_port_status(struct zfcp_port *, u32, int); 145 extern int zfcp_erp_port_reopen(struct zfcp_port *, int); 146 extern int zfcp_erp_port_shutdown(struct zfcp_port *, int); 147 extern int zfcp_erp_port_forced_reopen(struct zfcp_port *, int); 148 extern void zfcp_erp_port_failed(struct zfcp_port *); 149 extern int zfcp_erp_port_reopen_all(struct zfcp_adapter *, int); 150 151 extern void zfcp_erp_modify_unit_status(struct zfcp_unit *, u32, int); 152 extern int zfcp_erp_unit_reopen(struct zfcp_unit *, int); 153 extern int zfcp_erp_unit_shutdown(struct zfcp_unit *, int); 154 extern void zfcp_erp_unit_failed(struct zfcp_unit *); 155 156 extern int zfcp_erp_thread_setup(struct zfcp_adapter *); 157 extern int zfcp_erp_thread_kill(struct zfcp_adapter *); 158 extern int zfcp_erp_wait(struct zfcp_adapter *); 159 extern int zfcp_erp_async_handler(struct zfcp_erp_action *, unsigned long); 160 161 extern int zfcp_test_link(struct zfcp_port *); 162 163 extern void zfcp_erp_port_boxed(struct zfcp_port *); 164 extern void zfcp_erp_unit_boxed(struct zfcp_unit *); 165 extern void zfcp_erp_port_access_denied(struct zfcp_port *); 166 extern void zfcp_erp_unit_access_denied(struct zfcp_unit *); 167 extern void zfcp_erp_adapter_access_changed(struct zfcp_adapter *); 168 extern void zfcp_erp_port_access_changed(struct zfcp_port *); 169 extern void zfcp_erp_unit_access_changed(struct zfcp_unit *); 170 171 /******************************** AUX ****************************************/ 172 extern void zfcp_hba_dbf_event_fsf_response(struct zfcp_fsf_req *); 173 extern void zfcp_hba_dbf_event_fsf_unsol(const char *, struct zfcp_adapter *, 174 struct fsf_status_read_buffer *); 175 extern void zfcp_hba_dbf_event_qdio(struct zfcp_adapter *, 176 unsigned int, unsigned int, unsigned int, 177 int, int); 178 179 extern void zfcp_san_dbf_event_ct_request(struct zfcp_fsf_req *); 180 extern void zfcp_san_dbf_event_ct_response(struct zfcp_fsf_req *); 181 extern void zfcp_san_dbf_event_els_request(struct zfcp_fsf_req *); 182 extern void zfcp_san_dbf_event_els_response(struct zfcp_fsf_req *); 183 extern void zfcp_san_dbf_event_incoming_els(struct zfcp_fsf_req *); 184 185 extern void zfcp_scsi_dbf_event_result(const char *, int, struct zfcp_adapter *, 186 struct scsi_cmnd *, 187 struct zfcp_fsf_req *); 188 extern void zfcp_scsi_dbf_event_abort(const char *, struct zfcp_adapter *, 189 struct scsi_cmnd *, struct zfcp_fsf_req *, 190 struct zfcp_fsf_req *); 191 extern void zfcp_scsi_dbf_event_devreset(const char *, u8, struct zfcp_unit *, 192 struct scsi_cmnd *); 193 194 #endif /* ZFCP_EXT_H */ 195