1 /* 2 * 3 * linux/drivers/s390/scsi/zfcp_ext.h 4 * 5 * FCP adapter driver for IBM eServer zSeries 6 * 7 * (C) Copyright IBM Corp. 2002, 2004 8 * 9 * Author(s): Martin Peschke <mpeschke@de.ibm.com> 10 * Raimund Schroeder <raimund.schroeder@de.ibm.com> 11 * Aron Zeh 12 * Wolfgang Taphorn 13 * Stefan Bader <stefan.bader@de.ibm.com> 14 * Heiko Carstens <heiko.carstens@de.ibm.com> 15 * Andreas Herrmann <aherrman@de.ibm.com> 16 * 17 * This program is free software; you can redistribute it and/or modify 18 * it under the terms of the GNU General Public License as published by 19 * the Free Software Foundation; either version 2, or (at your option) 20 * any later version. 21 * 22 * This program is distributed in the hope that it will be useful, 23 * but WITHOUT ANY WARRANTY; without even the implied warranty of 24 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 25 * GNU General Public License for more details. 26 * 27 * You should have received a copy of the GNU General Public License 28 * along with this program; if not, write to the Free Software 29 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 30 */ 31 32 #ifndef ZFCP_EXT_H 33 #define ZFCP_EXT_H 34 35 #include "zfcp_def.h" 36 37 extern struct zfcp_data zfcp_data; 38 39 /******************************** SYSFS *************************************/ 40 extern int zfcp_sysfs_driver_create_files(struct device_driver *); 41 extern void zfcp_sysfs_driver_remove_files(struct device_driver *); 42 extern int zfcp_sysfs_adapter_create_files(struct device *); 43 extern void zfcp_sysfs_adapter_remove_files(struct device *); 44 extern int zfcp_sysfs_port_create_files(struct device *, u32); 45 extern void zfcp_sysfs_port_remove_files(struct device *, u32); 46 extern int zfcp_sysfs_unit_create_files(struct device *); 47 extern void zfcp_sysfs_unit_remove_files(struct device *); 48 extern void zfcp_sysfs_port_release(struct device *); 49 extern void zfcp_sysfs_unit_release(struct device *); 50 51 /**************************** CONFIGURATION *********************************/ 52 extern struct zfcp_unit *zfcp_get_unit_by_lun(struct zfcp_port *, fcp_lun_t); 53 extern struct zfcp_port *zfcp_get_port_by_wwpn(struct zfcp_adapter *, wwn_t); 54 extern struct zfcp_port *zfcp_get_port_by_did(struct zfcp_adapter *, u32); 55 struct zfcp_adapter *zfcp_get_adapter_by_busid(char *); 56 extern struct zfcp_adapter *zfcp_adapter_enqueue(struct ccw_device *); 57 extern int zfcp_adapter_debug_register(struct zfcp_adapter *); 58 extern void zfcp_adapter_dequeue(struct zfcp_adapter *); 59 extern void zfcp_adapter_debug_unregister(struct zfcp_adapter *); 60 extern struct zfcp_port *zfcp_port_enqueue(struct zfcp_adapter *, wwn_t, 61 u32, u32); 62 extern void zfcp_port_dequeue(struct zfcp_port *); 63 extern struct zfcp_unit *zfcp_unit_enqueue(struct zfcp_port *, fcp_lun_t); 64 extern void zfcp_unit_dequeue(struct zfcp_unit *); 65 66 /******************************* S/390 IO ************************************/ 67 extern int zfcp_ccw_register(void); 68 extern void zfcp_ccw_unregister(void); 69 70 extern void zfcp_qdio_zero_sbals(struct qdio_buffer **, int, int); 71 extern int zfcp_qdio_allocate(struct zfcp_adapter *); 72 extern int zfcp_qdio_allocate_queues(struct zfcp_adapter *); 73 extern void zfcp_qdio_free_queues(struct zfcp_adapter *); 74 extern int zfcp_qdio_determine_pci(struct zfcp_qdio_queue *, 75 struct zfcp_fsf_req *); 76 extern int zfcp_qdio_reqid_check(struct zfcp_adapter *, void *); 77 78 extern volatile struct qdio_buffer_element *zfcp_qdio_sbale_req 79 (struct zfcp_fsf_req *, int, int); 80 extern volatile struct qdio_buffer_element *zfcp_qdio_sbale_curr 81 (struct zfcp_fsf_req *); 82 extern int zfcp_qdio_sbals_from_sg 83 (struct zfcp_fsf_req *, unsigned long, struct scatterlist *, int, int); 84 extern int zfcp_qdio_sbals_from_scsicmnd 85 (struct zfcp_fsf_req *, unsigned long, struct scsi_cmnd *); 86 87 88 /******************************** FSF ****************************************/ 89 extern int zfcp_fsf_open_port(struct zfcp_erp_action *); 90 extern int zfcp_fsf_close_port(struct zfcp_erp_action *); 91 extern int zfcp_fsf_close_physical_port(struct zfcp_erp_action *); 92 93 extern int zfcp_fsf_open_unit(struct zfcp_erp_action *); 94 extern int zfcp_fsf_close_unit(struct zfcp_erp_action *); 95 96 extern int zfcp_fsf_exchange_config_data(struct zfcp_erp_action *); 97 extern int zfcp_fsf_exchange_port_data(struct zfcp_erp_action *, 98 struct zfcp_adapter *, 99 struct fsf_qtcb_bottom_port *); 100 extern int zfcp_fsf_control_file(struct zfcp_adapter *, struct zfcp_fsf_req **, 101 u32, u32, struct zfcp_sg_list *); 102 extern void zfcp_fsf_request_timeout_handler(unsigned long); 103 extern void zfcp_fsf_scsi_er_timeout_handler(unsigned long); 104 extern int zfcp_fsf_req_dismiss_all(struct zfcp_adapter *); 105 extern int zfcp_fsf_status_read(struct zfcp_adapter *, int); 106 extern int zfcp_fsf_req_create(struct zfcp_adapter *, u32, int, mempool_t *, 107 unsigned long *, struct zfcp_fsf_req **); 108 extern int zfcp_fsf_send_ct(struct zfcp_send_ct *, mempool_t *, 109 struct zfcp_erp_action *); 110 extern int zfcp_fsf_send_els(struct zfcp_send_els *); 111 extern int zfcp_fsf_send_fcp_command_task(struct zfcp_adapter *, 112 struct zfcp_unit *, 113 struct scsi_cmnd *, 114 struct timer_list*, int); 115 extern int zfcp_fsf_req_complete(struct zfcp_fsf_req *); 116 extern void zfcp_fsf_incoming_els(struct zfcp_fsf_req *); 117 extern void zfcp_fsf_req_free(struct zfcp_fsf_req *); 118 extern struct zfcp_fsf_req *zfcp_fsf_send_fcp_command_task_management( 119 struct zfcp_adapter *, struct zfcp_unit *, u8, int); 120 extern struct zfcp_fsf_req *zfcp_fsf_abort_fcp_command( 121 unsigned long, struct zfcp_adapter *, struct zfcp_unit *, int); 122 123 /******************************* FC/FCP **************************************/ 124 extern int zfcp_nameserver_enqueue(struct zfcp_adapter *); 125 extern int zfcp_ns_gid_pn_request(struct zfcp_erp_action *); 126 extern int zfcp_check_ct_response(struct ct_hdr *); 127 extern int zfcp_handle_els_rjt(u32, struct zfcp_ls_rjt_par *); 128 129 /******************************* SCSI ****************************************/ 130 extern int zfcp_adapter_scsi_register(struct zfcp_adapter *); 131 extern void zfcp_adapter_scsi_unregister(struct zfcp_adapter *); 132 extern void zfcp_set_fcp_dl(struct fcp_cmnd_iu *, fcp_dl_t); 133 extern char *zfcp_get_fcp_rsp_info_ptr(struct fcp_rsp_iu *); 134 extern void set_host_byte(u32 *, char); 135 extern void set_driver_byte(u32 *, char); 136 extern char *zfcp_get_fcp_sns_info_ptr(struct fcp_rsp_iu *); 137 extern void zfcp_fsf_start_scsi_er_timer(struct zfcp_adapter *); 138 extern fcp_dl_t zfcp_get_fcp_dl(struct fcp_cmnd_iu *); 139 140 extern int zfcp_scsi_command_async(struct zfcp_adapter *,struct zfcp_unit *, 141 struct scsi_cmnd *, struct timer_list *); 142 extern int zfcp_scsi_command_sync(struct zfcp_unit *, struct scsi_cmnd *, 143 struct timer_list *); 144 extern void zfcp_set_fc_host_attrs(struct zfcp_adapter *); 145 extern void zfcp_set_fc_rport_attrs(struct zfcp_port *); 146 extern struct scsi_transport_template *zfcp_transport_template; 147 extern struct fc_function_template zfcp_transport_functions; 148 149 /******************************** ERP ****************************************/ 150 extern void zfcp_erp_modify_adapter_status(struct zfcp_adapter *, u32, int); 151 extern int zfcp_erp_adapter_reopen(struct zfcp_adapter *, int); 152 extern int zfcp_erp_adapter_shutdown(struct zfcp_adapter *, int); 153 extern void zfcp_erp_adapter_failed(struct zfcp_adapter *); 154 155 extern void zfcp_erp_modify_port_status(struct zfcp_port *, u32, int); 156 extern int zfcp_erp_port_reopen(struct zfcp_port *, int); 157 extern int zfcp_erp_port_shutdown(struct zfcp_port *, int); 158 extern int zfcp_erp_port_forced_reopen(struct zfcp_port *, int); 159 extern void zfcp_erp_port_failed(struct zfcp_port *); 160 extern int zfcp_erp_port_reopen_all(struct zfcp_adapter *, int); 161 162 extern void zfcp_erp_modify_unit_status(struct zfcp_unit *, u32, int); 163 extern int zfcp_erp_unit_reopen(struct zfcp_unit *, int); 164 extern int zfcp_erp_unit_shutdown(struct zfcp_unit *, int); 165 extern void zfcp_erp_unit_failed(struct zfcp_unit *); 166 167 extern int zfcp_erp_thread_setup(struct zfcp_adapter *); 168 extern int zfcp_erp_thread_kill(struct zfcp_adapter *); 169 extern int zfcp_erp_wait(struct zfcp_adapter *); 170 extern int zfcp_erp_async_handler(struct zfcp_erp_action *, unsigned long); 171 172 extern int zfcp_test_link(struct zfcp_port *); 173 174 extern void zfcp_erp_port_boxed(struct zfcp_port *); 175 extern void zfcp_erp_unit_boxed(struct zfcp_unit *); 176 extern void zfcp_erp_port_access_denied(struct zfcp_port *); 177 extern void zfcp_erp_unit_access_denied(struct zfcp_unit *); 178 extern void zfcp_erp_adapter_access_changed(struct zfcp_adapter *); 179 extern void zfcp_erp_port_access_changed(struct zfcp_port *); 180 extern void zfcp_erp_unit_access_changed(struct zfcp_unit *); 181 182 /******************************** AUX ****************************************/ 183 extern void zfcp_hba_dbf_event_fsf_response(struct zfcp_fsf_req *); 184 extern void zfcp_hba_dbf_event_fsf_unsol(const char *, struct zfcp_adapter *, 185 struct fsf_status_read_buffer *); 186 extern void zfcp_hba_dbf_event_qdio(struct zfcp_adapter *, 187 unsigned int, unsigned int, unsigned int, 188 int, int); 189 190 extern void zfcp_san_dbf_event_ct_request(struct zfcp_fsf_req *); 191 extern void zfcp_san_dbf_event_ct_response(struct zfcp_fsf_req *); 192 extern void zfcp_san_dbf_event_els_request(struct zfcp_fsf_req *); 193 extern void zfcp_san_dbf_event_els_response(struct zfcp_fsf_req *); 194 extern void zfcp_san_dbf_event_incoming_els(struct zfcp_fsf_req *); 195 196 extern void zfcp_scsi_dbf_event_result(const char *, int, struct zfcp_adapter *, 197 struct scsi_cmnd *, 198 struct zfcp_fsf_req *); 199 extern void zfcp_scsi_dbf_event_abort(const char *, struct zfcp_adapter *, 200 struct scsi_cmnd *, struct zfcp_fsf_req *, 201 struct zfcp_fsf_req *); 202 extern void zfcp_scsi_dbf_event_devreset(const char *, u8, struct zfcp_unit *, 203 struct scsi_cmnd *); 204 205 #endif /* ZFCP_EXT_H */ 206