drivers/s390/scsi/zfcp_ext.h

   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 */