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 #define ZFCP_EXT_REVISION "$Revision: 1.62 $" 36 37 #include "zfcp_def.h" 38 39 extern struct zfcp_data zfcp_data; 40 41 /******************************** SYSFS *************************************/ 42 extern int zfcp_sysfs_driver_create_files(struct device_driver *); 43 extern void zfcp_sysfs_driver_remove_files(struct device_driver *); 44 extern int zfcp_sysfs_adapter_create_files(struct device *); 45 extern void zfcp_sysfs_adapter_remove_files(struct device *); 46 extern int zfcp_sysfs_port_create_files(struct device *, u32); 47 extern void zfcp_sysfs_port_remove_files(struct device *, u32); 48 extern int zfcp_sysfs_unit_create_files(struct device *); 49 extern void zfcp_sysfs_unit_remove_files(struct device *); 50 extern void zfcp_sysfs_port_release(struct device *); 51 extern void zfcp_sysfs_unit_release(struct device *); 52 53 /**************************** CONFIGURATION *********************************/ 54 extern struct zfcp_unit *zfcp_get_unit_by_lun(struct zfcp_port *, fcp_lun_t); 55 extern struct zfcp_port *zfcp_get_port_by_wwpn(struct zfcp_adapter *, wwn_t); 56 extern struct zfcp_port *zfcp_get_port_by_did(struct zfcp_adapter *, u32); 57 struct zfcp_adapter *zfcp_get_adapter_by_busid(char *); 58 extern struct zfcp_adapter *zfcp_adapter_enqueue(struct ccw_device *); 59 extern int zfcp_adapter_debug_register(struct zfcp_adapter *); 60 extern void zfcp_adapter_dequeue(struct zfcp_adapter *); 61 extern void zfcp_adapter_debug_unregister(struct zfcp_adapter *); 62 extern struct zfcp_port *zfcp_port_enqueue(struct zfcp_adapter *, wwn_t, 63 u32, u32); 64 extern void zfcp_port_dequeue(struct zfcp_port *); 65 extern struct zfcp_unit *zfcp_unit_enqueue(struct zfcp_port *, fcp_lun_t); 66 extern void zfcp_unit_dequeue(struct zfcp_unit *); 67 68 /******************************* S/390 IO ************************************/ 69 extern int zfcp_ccw_register(void); 70 extern void zfcp_ccw_unregister(void); 71 72 extern void zfcp_qdio_zero_sbals(struct qdio_buffer **, int, int); 73 extern int zfcp_qdio_allocate(struct zfcp_adapter *); 74 extern int zfcp_qdio_allocate_queues(struct zfcp_adapter *); 75 extern void zfcp_qdio_free_queues(struct zfcp_adapter *); 76 extern int zfcp_qdio_determine_pci(struct zfcp_qdio_queue *, 77 struct zfcp_fsf_req *); 78 extern int zfcp_qdio_reqid_check(struct zfcp_adapter *, void *); 79 80 extern volatile struct qdio_buffer_element *zfcp_qdio_sbale_req 81 (struct zfcp_fsf_req *, int, int); 82 extern volatile struct qdio_buffer_element *zfcp_qdio_sbale_curr 83 (struct zfcp_fsf_req *); 84 extern int zfcp_qdio_sbals_from_sg 85 (struct zfcp_fsf_req *, unsigned long, struct scatterlist *, int, int); 86 extern int zfcp_qdio_sbals_from_scsicmnd 87 (struct zfcp_fsf_req *, unsigned long, struct scsi_cmnd *); 88 89 90 /******************************** FSF ****************************************/ 91 extern int zfcp_fsf_open_port(struct zfcp_erp_action *); 92 extern int zfcp_fsf_close_port(struct zfcp_erp_action *); 93 extern int zfcp_fsf_close_physical_port(struct zfcp_erp_action *); 94 95 extern int zfcp_fsf_open_unit(struct zfcp_erp_action *); 96 extern int zfcp_fsf_close_unit(struct zfcp_erp_action *); 97 98 extern int zfcp_fsf_exchange_config_data(struct zfcp_erp_action *); 99 extern int zfcp_fsf_exchange_port_data(struct zfcp_erp_action *, 100 struct zfcp_adapter *, 101 struct fsf_qtcb_bottom_port *); 102 extern int zfcp_fsf_control_file(struct zfcp_adapter *, struct zfcp_fsf_req **, 103 u32, u32, struct zfcp_sg_list *); 104 extern void zfcp_fsf_request_timeout_handler(unsigned long); 105 extern void zfcp_fsf_scsi_er_timeout_handler(unsigned long); 106 extern int zfcp_fsf_req_dismiss_all(struct zfcp_adapter *); 107 extern int zfcp_fsf_status_read(struct zfcp_adapter *, int); 108 extern int zfcp_fsf_req_create(struct zfcp_adapter *, u32, int, mempool_t *, 109 unsigned long *, struct zfcp_fsf_req **); 110 extern int zfcp_fsf_send_ct(struct zfcp_send_ct *, mempool_t *, 111 struct zfcp_erp_action *); 112 extern int zfcp_fsf_send_els(struct zfcp_send_els *); 113 extern int zfcp_fsf_send_fcp_command_task(struct zfcp_adapter *, 114 struct zfcp_unit *, 115 struct scsi_cmnd *, 116 struct timer_list*, int); 117 extern int zfcp_fsf_req_complete(struct zfcp_fsf_req *); 118 extern void zfcp_fsf_incoming_els(struct zfcp_fsf_req *); 119 extern void zfcp_fsf_req_free(struct zfcp_fsf_req *); 120 extern struct zfcp_fsf_req *zfcp_fsf_send_fcp_command_task_management( 121 struct zfcp_adapter *, struct zfcp_unit *, u8, int); 122 extern struct zfcp_fsf_req *zfcp_fsf_abort_fcp_command( 123 unsigned long, struct zfcp_adapter *, struct zfcp_unit *, int); 124 125 /******************************* FC/FCP **************************************/ 126 extern int zfcp_nameserver_enqueue(struct zfcp_adapter *); 127 extern int zfcp_ns_gid_pn_request(struct zfcp_erp_action *); 128 extern int zfcp_check_ct_response(struct ct_hdr *); 129 extern int zfcp_handle_els_rjt(u32, struct zfcp_ls_rjt_par *); 130 131 /******************************* SCSI ****************************************/ 132 extern int zfcp_adapter_scsi_register(struct zfcp_adapter *); 133 extern void zfcp_adapter_scsi_unregister(struct zfcp_adapter *); 134 extern void zfcp_set_fcp_dl(struct fcp_cmnd_iu *, fcp_dl_t); 135 extern char *zfcp_get_fcp_rsp_info_ptr(struct fcp_rsp_iu *); 136 extern void set_host_byte(u32 *, char); 137 extern void set_driver_byte(u32 *, char); 138 extern char *zfcp_get_fcp_sns_info_ptr(struct fcp_rsp_iu *); 139 extern void zfcp_fsf_start_scsi_er_timer(struct zfcp_adapter *); 140 extern fcp_dl_t zfcp_get_fcp_dl(struct fcp_cmnd_iu *); 141 142 extern int zfcp_scsi_command_async(struct zfcp_adapter *,struct zfcp_unit *, 143 struct scsi_cmnd *, struct timer_list *); 144 extern int zfcp_scsi_command_sync(struct zfcp_unit *, struct scsi_cmnd *, 145 struct timer_list *); 146 extern void zfcp_set_fc_host_attrs(struct zfcp_adapter *); 147 extern void zfcp_set_fc_rport_attrs(struct zfcp_port *); 148 extern struct scsi_transport_template *zfcp_transport_template; 149 extern struct fc_function_template zfcp_transport_functions; 150 151 /******************************** ERP ****************************************/ 152 extern void zfcp_erp_modify_adapter_status(struct zfcp_adapter *, u32, int); 153 extern int zfcp_erp_adapter_reopen(struct zfcp_adapter *, int); 154 extern int zfcp_erp_adapter_shutdown(struct zfcp_adapter *, int); 155 extern void zfcp_erp_adapter_failed(struct zfcp_adapter *); 156 157 extern void zfcp_erp_modify_port_status(struct zfcp_port *, u32, int); 158 extern int zfcp_erp_port_reopen(struct zfcp_port *, int); 159 extern int zfcp_erp_port_shutdown(struct zfcp_port *, int); 160 extern int zfcp_erp_port_forced_reopen(struct zfcp_port *, int); 161 extern void zfcp_erp_port_failed(struct zfcp_port *); 162 extern int zfcp_erp_port_reopen_all(struct zfcp_adapter *, int); 163 164 extern void zfcp_erp_modify_unit_status(struct zfcp_unit *, u32, int); 165 extern int zfcp_erp_unit_reopen(struct zfcp_unit *, int); 166 extern int zfcp_erp_unit_shutdown(struct zfcp_unit *, int); 167 extern void zfcp_erp_unit_failed(struct zfcp_unit *); 168 169 extern int zfcp_erp_thread_setup(struct zfcp_adapter *); 170 extern int zfcp_erp_thread_kill(struct zfcp_adapter *); 171 extern int zfcp_erp_wait(struct zfcp_adapter *); 172 extern int zfcp_erp_async_handler(struct zfcp_erp_action *, unsigned long); 173 174 extern int zfcp_test_link(struct zfcp_port *); 175 176 extern void zfcp_erp_port_boxed(struct zfcp_port *); 177 extern void zfcp_erp_unit_boxed(struct zfcp_unit *); 178 extern void zfcp_erp_port_access_denied(struct zfcp_port *); 179 extern void zfcp_erp_unit_access_denied(struct zfcp_unit *); 180 extern void zfcp_erp_adapter_access_changed(struct zfcp_adapter *); 181 extern void zfcp_erp_port_access_changed(struct zfcp_port *); 182 extern void zfcp_erp_unit_access_changed(struct zfcp_unit *); 183 184 /******************************** AUX ****************************************/ 185 extern void zfcp_hba_dbf_event_fsf_response(struct zfcp_fsf_req *); 186 extern void zfcp_hba_dbf_event_fsf_unsol(const char *, struct zfcp_adapter *, 187 struct fsf_status_read_buffer *); 188 extern void zfcp_hba_dbf_event_qdio(struct zfcp_adapter *, 189 unsigned int, unsigned int, unsigned int, 190 int, int); 191 192 extern void zfcp_san_dbf_event_ct_request(struct zfcp_fsf_req *); 193 extern void zfcp_san_dbf_event_ct_response(struct zfcp_fsf_req *); 194 extern void zfcp_san_dbf_event_els_request(struct zfcp_fsf_req *); 195 extern void zfcp_san_dbf_event_els_response(struct zfcp_fsf_req *); 196 extern void zfcp_san_dbf_event_incoming_els(struct zfcp_fsf_req *); 197 198 extern void zfcp_scsi_dbf_event_result(const char *, int, struct zfcp_adapter *, 199 struct scsi_cmnd *); 200 extern void zfcp_scsi_dbf_event_abort(const char *, struct zfcp_adapter *, 201 struct scsi_cmnd *, 202 struct zfcp_fsf_req *); 203 extern void zfcp_scsi_dbf_event_devreset(const char *, u8, struct zfcp_unit *, 204 struct scsi_cmnd *); 205 206 #endif /* ZFCP_EXT_H */ 207