drivers/s390/scsi/zfcp_ext.h

   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 */