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 struct attribute_group *zfcp_driver_attr_groups[]; 31 extern int zfcp_sysfs_adapter_create_files(struct device *); 32 extern void zfcp_sysfs_adapter_remove_files(struct device *); 33 extern int zfcp_sysfs_port_create_files(struct device *, u32); 34 extern void zfcp_sysfs_port_remove_files(struct device *, u32); 35 extern int zfcp_sysfs_unit_create_files(struct device *); 36 extern void zfcp_sysfs_unit_remove_files(struct device *); 37 extern void zfcp_sysfs_port_release(struct device *); 38 extern void zfcp_sysfs_unit_release(struct device *); 39 40 /**************************** CONFIGURATION *********************************/ 41 extern struct zfcp_unit *zfcp_get_unit_by_lun(struct zfcp_port *, fcp_lun_t); 42 extern struct zfcp_port *zfcp_get_port_by_wwpn(struct zfcp_adapter *, wwn_t); 43 extern struct zfcp_port *zfcp_get_port_by_did(struct zfcp_adapter *, u32); 44 struct zfcp_adapter *zfcp_get_adapter_by_busid(char *); 45 extern struct zfcp_adapter *zfcp_adapter_enqueue(struct ccw_device *); 46 extern int zfcp_adapter_debug_register(struct zfcp_adapter *); 47 extern void zfcp_adapter_dequeue(struct zfcp_adapter *); 48 extern void zfcp_adapter_debug_unregister(struct zfcp_adapter *); 49 extern struct zfcp_port *zfcp_port_enqueue(struct zfcp_adapter *, wwn_t, 50 u32, u32); 51 extern void zfcp_port_dequeue(struct zfcp_port *); 52 extern struct zfcp_unit *zfcp_unit_enqueue(struct zfcp_port *, fcp_lun_t); 53 extern void zfcp_unit_dequeue(struct zfcp_unit *); 54 55 /******************************* S/390 IO ************************************/ 56 extern int zfcp_ccw_register(void); 57 58 extern void zfcp_qdio_zero_sbals(struct qdio_buffer **, int, int); 59 extern int zfcp_qdio_allocate(struct zfcp_adapter *); 60 extern int zfcp_qdio_allocate_queues(struct zfcp_adapter *); 61 extern void zfcp_qdio_free_queues(struct zfcp_adapter *); 62 extern int zfcp_qdio_determine_pci(struct zfcp_qdio_queue *, 63 struct zfcp_fsf_req *); 64 65 extern volatile struct qdio_buffer_element *zfcp_qdio_sbale_req 66 (struct zfcp_fsf_req *, int, int); 67 extern volatile struct qdio_buffer_element *zfcp_qdio_sbale_curr 68 (struct zfcp_fsf_req *); 69 extern int zfcp_qdio_sbals_from_sg 70 (struct zfcp_fsf_req *, unsigned long, struct scatterlist *, int, int); 71 extern int zfcp_qdio_sbals_from_scsicmnd 72 (struct zfcp_fsf_req *, unsigned long, struct scsi_cmnd *); 73 74 75 /******************************** FSF ****************************************/ 76 extern int zfcp_fsf_open_port(struct zfcp_erp_action *); 77 extern int zfcp_fsf_close_port(struct zfcp_erp_action *); 78 extern int zfcp_fsf_close_physical_port(struct zfcp_erp_action *); 79 80 extern int zfcp_fsf_open_unit(struct zfcp_erp_action *); 81 extern int zfcp_fsf_close_unit(struct zfcp_erp_action *); 82 83 extern int zfcp_fsf_exchange_config_data(struct zfcp_erp_action *); 84 extern int zfcp_fsf_exchange_config_data_sync(struct zfcp_adapter *, 85 struct fsf_qtcb_bottom_config *); 86 extern int zfcp_fsf_exchange_port_data(struct zfcp_erp_action *); 87 extern int zfcp_fsf_exchange_port_data_sync(struct zfcp_adapter *, 88 struct fsf_qtcb_bottom_port *); 89 extern int zfcp_fsf_control_file(struct zfcp_adapter *, struct zfcp_fsf_req **, 90 u32, u32, struct zfcp_sg_list *); 91 extern void zfcp_fsf_start_timer(struct zfcp_fsf_req *, unsigned long); 92 extern void zfcp_erp_start_timer(struct zfcp_fsf_req *); 93 extern void zfcp_fsf_req_dismiss_all(struct zfcp_adapter *); 94 extern int zfcp_fsf_status_read(struct zfcp_adapter *, int); 95 extern int zfcp_fsf_req_create(struct zfcp_adapter *, u32, int, mempool_t *, 96 unsigned long *, struct zfcp_fsf_req **); 97 extern int zfcp_fsf_send_ct(struct zfcp_send_ct *, mempool_t *, 98 struct zfcp_erp_action *); 99 extern int zfcp_fsf_send_els(struct zfcp_send_els *); 100 extern int zfcp_fsf_send_fcp_command_task(struct zfcp_adapter *, 101 struct zfcp_unit *, 102 struct scsi_cmnd *, int, int); 103 extern int zfcp_fsf_req_complete(struct zfcp_fsf_req *); 104 extern void zfcp_fsf_incoming_els(struct zfcp_fsf_req *); 105 extern void zfcp_fsf_req_free(struct zfcp_fsf_req *); 106 extern struct zfcp_fsf_req *zfcp_fsf_send_fcp_command_task_management( 107 struct zfcp_adapter *, struct zfcp_unit *, u8, int); 108 extern struct zfcp_fsf_req *zfcp_fsf_abort_fcp_command( 109 unsigned long, struct zfcp_adapter *, struct zfcp_unit *, int); 110 111 /******************************* FC/FCP **************************************/ 112 extern int zfcp_nameserver_enqueue(struct zfcp_adapter *); 113 extern int zfcp_ns_gid_pn_request(struct zfcp_erp_action *); 114 extern int zfcp_check_ct_response(struct ct_hdr *); 115 extern int zfcp_handle_els_rjt(u32, struct zfcp_ls_rjt_par *); 116 extern void zfcp_plogi_evaluate(struct zfcp_port *, struct fsf_plogi *); 117 118 /******************************* SCSI ****************************************/ 119 extern int zfcp_adapter_scsi_register(struct zfcp_adapter *); 120 extern void zfcp_adapter_scsi_unregister(struct zfcp_adapter *); 121 extern void zfcp_set_fcp_dl(struct fcp_cmnd_iu *, fcp_dl_t); 122 extern char *zfcp_get_fcp_rsp_info_ptr(struct fcp_rsp_iu *); 123 extern void set_host_byte(int *, char); 124 extern void set_driver_byte(int *, char); 125 extern char *zfcp_get_fcp_sns_info_ptr(struct fcp_rsp_iu *); 126 extern fcp_dl_t zfcp_get_fcp_dl(struct fcp_cmnd_iu *); 127 128 extern int zfcp_scsi_command_async(struct zfcp_adapter *,struct zfcp_unit *, 129 struct scsi_cmnd *, int); 130 extern int zfcp_scsi_command_sync(struct zfcp_unit *, struct scsi_cmnd *, int); 131 extern struct fc_function_template zfcp_transport_functions; 132 133 /******************************** ERP ****************************************/ 134 extern void zfcp_erp_modify_adapter_status(struct zfcp_adapter *, u32, int); 135 extern int zfcp_erp_adapter_reopen(struct zfcp_adapter *, int); 136 extern int zfcp_erp_adapter_shutdown(struct zfcp_adapter *, int); 137 extern void zfcp_erp_adapter_failed(struct zfcp_adapter *); 138 139 extern void zfcp_erp_modify_port_status(struct zfcp_port *, u32, int); 140 extern int zfcp_erp_port_reopen(struct zfcp_port *, int); 141 extern int zfcp_erp_port_shutdown(struct zfcp_port *, int); 142 extern int zfcp_erp_port_forced_reopen(struct zfcp_port *, int); 143 extern void zfcp_erp_port_failed(struct zfcp_port *); 144 extern int zfcp_erp_port_reopen_all(struct zfcp_adapter *, int); 145 146 extern void zfcp_erp_modify_unit_status(struct zfcp_unit *, u32, int); 147 extern int zfcp_erp_unit_reopen(struct zfcp_unit *, int); 148 extern int zfcp_erp_unit_shutdown(struct zfcp_unit *, int); 149 extern void zfcp_erp_unit_failed(struct zfcp_unit *); 150 151 extern int zfcp_erp_thread_setup(struct zfcp_adapter *); 152 extern int zfcp_erp_thread_kill(struct zfcp_adapter *); 153 extern int zfcp_erp_wait(struct zfcp_adapter *); 154 extern void zfcp_erp_async_handler(struct zfcp_erp_action *, unsigned long); 155 156 extern int zfcp_test_link(struct zfcp_port *); 157 158 extern void zfcp_erp_port_boxed(struct zfcp_port *); 159 extern void zfcp_erp_unit_boxed(struct zfcp_unit *); 160 extern void zfcp_erp_port_access_denied(struct zfcp_port *); 161 extern void zfcp_erp_unit_access_denied(struct zfcp_unit *); 162 extern void zfcp_erp_adapter_access_changed(struct zfcp_adapter *); 163 extern void zfcp_erp_port_access_changed(struct zfcp_port *); 164 extern void zfcp_erp_unit_access_changed(struct zfcp_unit *); 165 166 /******************************** AUX ****************************************/ 167 extern void zfcp_hba_dbf_event_fsf_response(struct zfcp_fsf_req *); 168 extern void zfcp_hba_dbf_event_fsf_unsol(const char *, struct zfcp_adapter *, 169 struct fsf_status_read_buffer *); 170 extern void zfcp_hba_dbf_event_qdio(struct zfcp_adapter *, 171 unsigned int, unsigned int, unsigned int, 172 int, int); 173 174 extern void zfcp_san_dbf_event_ct_request(struct zfcp_fsf_req *); 175 extern void zfcp_san_dbf_event_ct_response(struct zfcp_fsf_req *); 176 extern void zfcp_san_dbf_event_els_request(struct zfcp_fsf_req *); 177 extern void zfcp_san_dbf_event_els_response(struct zfcp_fsf_req *); 178 extern void zfcp_san_dbf_event_incoming_els(struct zfcp_fsf_req *); 179 180 extern void zfcp_scsi_dbf_event_result(const char *, int, struct zfcp_adapter *, 181 struct scsi_cmnd *, 182 struct zfcp_fsf_req *); 183 extern void zfcp_scsi_dbf_event_abort(const char *, struct zfcp_adapter *, 184 struct scsi_cmnd *, struct zfcp_fsf_req *, 185 unsigned long); 186 extern void zfcp_scsi_dbf_event_devreset(const char *, u8, struct zfcp_unit *, 187 struct scsi_cmnd *); 188 extern int zfcp_reqlist_isempty(struct zfcp_adapter *); 189 190 #endif /* ZFCP_EXT_H */ 191