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
  59 extern void zfcp_qdio_zero_sbals(struct qdio_buffer **, int, int);
  60 extern int  zfcp_qdio_allocate(struct zfcp_adapter *);
  61 extern int  zfcp_qdio_allocate_queues(struct zfcp_adapter *);
  62 extern void zfcp_qdio_free_queues(struct zfcp_adapter *);
  63 extern int  zfcp_qdio_determine_pci(struct zfcp_qdio_queue *,
  64                                     struct zfcp_fsf_req *);
  65
  66 extern volatile struct qdio_buffer_element *zfcp_qdio_sbale_req
  67         (struct zfcp_fsf_req *, int, int);
  68 extern volatile struct qdio_buffer_element *zfcp_qdio_sbale_curr
  69         (struct zfcp_fsf_req *);
  70 extern int zfcp_qdio_sbals_from_sg
  71         (struct zfcp_fsf_req *, unsigned long, struct scatterlist *, int, int);
  72 extern int zfcp_qdio_sbals_from_scsicmnd
  73         (struct zfcp_fsf_req *, unsigned long, struct scsi_cmnd *);
  74
  75
  76 /******************************** FSF ****************************************/
  77 extern int  zfcp_fsf_open_port(struct zfcp_erp_action *);
  78 extern int  zfcp_fsf_close_port(struct zfcp_erp_action *);
  79 extern int  zfcp_fsf_close_physical_port(struct zfcp_erp_action *);
  80
  81 extern int  zfcp_fsf_open_unit(struct zfcp_erp_action *);
  82 extern int  zfcp_fsf_close_unit(struct zfcp_erp_action *);
  83
  84 extern int  zfcp_fsf_exchange_config_data(struct zfcp_erp_action *);
  85 extern int  zfcp_fsf_exchange_port_data(struct zfcp_erp_action *,
  86                                         struct zfcp_adapter *,
  87                                         struct fsf_qtcb_bottom_port *);
  88 extern int  zfcp_fsf_control_file(struct zfcp_adapter *, struct zfcp_fsf_req **,
  89                                   u32, u32, struct zfcp_sg_list *);
  90 extern void zfcp_fsf_start_timer(struct zfcp_fsf_req *, unsigned long);
  91 extern void zfcp_erp_start_timer(struct zfcp_fsf_req *);
  92 extern int  zfcp_fsf_req_dismiss_all(struct zfcp_adapter *);
  93 extern int  zfcp_fsf_status_read(struct zfcp_adapter *, int);
  94 extern int zfcp_fsf_req_create(struct zfcp_adapter *, u32, int, mempool_t *,
  95                                unsigned long *, struct zfcp_fsf_req **);
  96 extern int zfcp_fsf_send_ct(struct zfcp_send_ct *, mempool_t *,
  97                             struct zfcp_erp_action *);
  98 extern int zfcp_fsf_send_els(struct zfcp_send_els *);
  99 extern int  zfcp_fsf_send_fcp_command_task(struct zfcp_adapter *,
 100                                            struct zfcp_unit *,
 101                                            struct scsi_cmnd *, int, int);
 102 extern int  zfcp_fsf_req_complete(struct zfcp_fsf_req *);
 103 extern void zfcp_fsf_incoming_els(struct zfcp_fsf_req *);
 104 extern void zfcp_fsf_req_free(struct zfcp_fsf_req *);
 105 extern struct zfcp_fsf_req *zfcp_fsf_send_fcp_command_task_management(
 106         struct zfcp_adapter *, struct zfcp_unit *, u8, int);
 107 extern struct zfcp_fsf_req *zfcp_fsf_abort_fcp_command(
 108         unsigned long, struct zfcp_adapter *, struct zfcp_unit *, int);
 109
 110 /******************************* FC/FCP **************************************/
 111 extern int  zfcp_nameserver_enqueue(struct zfcp_adapter *);
 112 extern int  zfcp_ns_gid_pn_request(struct zfcp_erp_action *);
 113 extern int  zfcp_check_ct_response(struct ct_hdr *);
 114 extern int  zfcp_handle_els_rjt(u32, struct zfcp_ls_rjt_par *);
 115 extern void zfcp_plogi_evaluate(struct zfcp_port *, struct fsf_plogi *);
 116
 117 /******************************* SCSI ****************************************/
 118 extern int  zfcp_adapter_scsi_register(struct zfcp_adapter *);
 119 extern void zfcp_adapter_scsi_unregister(struct zfcp_adapter *);
 120 extern void zfcp_set_fcp_dl(struct fcp_cmnd_iu *, fcp_dl_t);
 121 extern char *zfcp_get_fcp_rsp_info_ptr(struct fcp_rsp_iu *);
 122 extern void set_host_byte(u32 *, char);
 123 extern void set_driver_byte(u32 *, char);
 124 extern char *zfcp_get_fcp_sns_info_ptr(struct fcp_rsp_iu *);
 125 extern fcp_dl_t zfcp_get_fcp_dl(struct fcp_cmnd_iu *);
 126
 127 extern int zfcp_scsi_command_async(struct zfcp_adapter *,struct zfcp_unit *,
 128                                    struct scsi_cmnd *, int);
 129 extern int zfcp_scsi_command_sync(struct zfcp_unit *, struct scsi_cmnd *, int);
 130 extern struct fc_function_template zfcp_transport_functions;
 131
 132 /******************************** ERP ****************************************/
 133 extern void zfcp_erp_modify_adapter_status(struct zfcp_adapter *, u32, int);
 134 extern int  zfcp_erp_adapter_reopen(struct zfcp_adapter *, int);
 135 extern int  zfcp_erp_adapter_shutdown(struct zfcp_adapter *, int);
 136 extern void zfcp_erp_adapter_failed(struct zfcp_adapter *);
 137
 138 extern void zfcp_erp_modify_port_status(struct zfcp_port *, u32, int);
 139 extern int  zfcp_erp_port_reopen(struct zfcp_port *, int);
 140 extern int  zfcp_erp_port_shutdown(struct zfcp_port *, int);
 141 extern int  zfcp_erp_port_forced_reopen(struct zfcp_port *, int);
 142 extern void zfcp_erp_port_failed(struct zfcp_port *);
 143 extern int  zfcp_erp_port_reopen_all(struct zfcp_adapter *, int);
 144
 145 extern void zfcp_erp_modify_unit_status(struct zfcp_unit *, u32, int);
 146 extern int  zfcp_erp_unit_reopen(struct zfcp_unit *, int);
 147 extern int  zfcp_erp_unit_shutdown(struct zfcp_unit *, int);
 148 extern void zfcp_erp_unit_failed(struct zfcp_unit *);
 149
 150 extern int  zfcp_erp_thread_setup(struct zfcp_adapter *);
 151 extern int  zfcp_erp_thread_kill(struct zfcp_adapter *);
 152 extern int  zfcp_erp_wait(struct zfcp_adapter *);
 153 extern void zfcp_erp_async_handler(struct zfcp_erp_action *, unsigned long);
 154
 155 extern int  zfcp_test_link(struct zfcp_port *);
 156
 157 extern void zfcp_erp_port_boxed(struct zfcp_port *);
 158 extern void zfcp_erp_unit_boxed(struct zfcp_unit *);
 159 extern void zfcp_erp_port_access_denied(struct zfcp_port *);
 160 extern void zfcp_erp_unit_access_denied(struct zfcp_unit *);
 161 extern void zfcp_erp_adapter_access_changed(struct zfcp_adapter *);
 162 extern void zfcp_erp_port_access_changed(struct zfcp_port *);
 163 extern void zfcp_erp_unit_access_changed(struct zfcp_unit *);
 164
 165 /******************************** AUX ****************************************/
 166 extern void zfcp_hba_dbf_event_fsf_response(struct zfcp_fsf_req *);
 167 extern void zfcp_hba_dbf_event_fsf_unsol(const char *, struct zfcp_adapter *,
 168                                          struct fsf_status_read_buffer *);
 169 extern void zfcp_hba_dbf_event_qdio(struct zfcp_adapter *,
 170                                     unsigned int, unsigned int, unsigned int,
 171                                     int, int);
 172
 173 extern void zfcp_san_dbf_event_ct_request(struct zfcp_fsf_req *);
 174 extern void zfcp_san_dbf_event_ct_response(struct zfcp_fsf_req *);
 175 extern void zfcp_san_dbf_event_els_request(struct zfcp_fsf_req *);
 176 extern void zfcp_san_dbf_event_els_response(struct zfcp_fsf_req *);
 177 extern void zfcp_san_dbf_event_incoming_els(struct zfcp_fsf_req *);
 178
 179 extern void zfcp_scsi_dbf_event_result(const char *, int, struct zfcp_adapter *,
 180                                        struct scsi_cmnd *,
 181                                        struct zfcp_fsf_req *);
 182 extern void zfcp_scsi_dbf_event_abort(const char *, struct zfcp_adapter *,
 183                                       struct scsi_cmnd *, struct zfcp_fsf_req *,
 184                                       unsigned long);
 185 extern void zfcp_scsi_dbf_event_devreset(const char *, u8, struct zfcp_unit *,
 186                                          struct scsi_cmnd *);
 187 extern void zfcp_reqlist_add(struct zfcp_adapter *, struct zfcp_fsf_req *);
 188 extern void zfcp_reqlist_remove(struct zfcp_adapter *, unsigned long);
 189 extern struct zfcp_fsf_req *zfcp_reqlist_ismember(struct zfcp_adapter *,
 190                                                   unsigned long);
 191 extern int zfcp_reqlist_isempty(struct zfcp_adapter *);
 192
 193 #endif  /* ZFCP_EXT_H */