3 * linux/drivers/s390/scsi/zfcp_ext.h
5 * FCP adapter driver for IBM eServer zSeries
7 * (C) Copyright IBM Corp. 2002, 2004
9 * Author(s): Martin Peschke <mpeschke@de.ibm.com>
10 * Raimund Schroeder <raimund.schroeder@de.ibm.com>
13 * Stefan Bader <stefan.bader@de.ibm.com>
14 * Heiko Carstens <heiko.carstens@de.ibm.com>
16 * This program is free software; you can redistribute it and/or modify
17 * it under the terms of the GNU General Public License as published by
18 * the Free Software Foundation; either version 2, or (at your option)
21 * This program is distributed in the hope that it will be useful,
22 * but WITHOUT ANY WARRANTY; without even the implied warranty of
23 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24 * GNU General Public License for more details.
26 * You should have received a copy of the GNU General Public License
27 * along with this program; if not, write to the Free Software
28 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
33 /* this drivers version (do not edit !!! generated and updated by cvs) */
34 #define ZFCP_EXT_REVISION "$Revision: 1.49 $"
38 extern struct zfcp_data zfcp_data;
40 /******************************** SYSFS *************************************/
41 extern int zfcp_sysfs_driver_create_files(struct device_driver *);
42 extern void zfcp_sysfs_driver_remove_files(struct device_driver *);
43 extern int zfcp_sysfs_adapter_create_files(struct device *);
44 extern void zfcp_sysfs_adapter_remove_files(struct device *);
45 extern int zfcp_sysfs_port_create_files(struct device *, u32);
46 extern void zfcp_sysfs_port_remove_files(struct device *, u32);
47 extern int zfcp_sysfs_unit_create_files(struct device *);
48 extern void zfcp_sysfs_unit_remove_files(struct device *);
49 extern void zfcp_sysfs_port_release(struct device *);
50 extern void zfcp_sysfs_unit_release(struct device *);
52 /**************************** CONFIGURATION *********************************/
53 extern struct zfcp_unit *zfcp_get_unit_by_lun(struct zfcp_port *,
55 extern struct zfcp_port *zfcp_get_port_by_wwpn(struct zfcp_adapter *,
57 extern struct zfcp_adapter *zfcp_adapter_enqueue(struct ccw_device *);
58 extern int zfcp_adapter_debug_register(struct zfcp_adapter *);
59 extern void zfcp_adapter_dequeue(struct zfcp_adapter *);
60 extern void zfcp_adapter_debug_unregister(struct zfcp_adapter *);
61 extern struct zfcp_port *zfcp_port_enqueue(struct zfcp_adapter *, wwn_t, 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 *);
66 /******************************* S/390 IO ************************************/
67 extern int zfcp_ccw_register(void);
68 extern void zfcp_ccw_unregister(void);
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 *);
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 *);
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 *);
93 extern int zfcp_fsf_open_unit(struct zfcp_erp_action *);
94 extern int zfcp_fsf_close_unit(struct zfcp_erp_action *);
96 extern int zfcp_fsf_exchange_config_data(struct zfcp_erp_action *);
97 extern int zfcp_fsf_control_file(struct zfcp_adapter *, struct zfcp_fsf_req **,
98 u32, u32, struct zfcp_sg_list *);
99 extern void zfcp_fsf_scsi_er_timeout_handler(unsigned long);
100 extern int zfcp_fsf_req_dismiss_all(struct zfcp_adapter *);
101 extern int zfcp_fsf_status_read(struct zfcp_adapter *, int);
102 extern int zfcp_fsf_req_create(struct zfcp_adapter *, u32, int, mempool_t *,
103 unsigned long *, struct zfcp_fsf_req **);
104 extern int zfcp_fsf_send_ct(struct zfcp_send_ct *, mempool_t *,
105 struct zfcp_erp_action *);
106 extern int zfcp_fsf_send_els(struct zfcp_send_els *);
107 extern int zfcp_fsf_req_wait_and_cleanup(struct zfcp_fsf_req *, int, u32 *);
108 extern int zfcp_fsf_send_fcp_command_task(struct zfcp_adapter *,
112 extern int zfcp_fsf_req_complete(struct zfcp_fsf_req *);
113 extern void zfcp_fsf_incoming_els(struct zfcp_fsf_req *);
114 extern void zfcp_fsf_req_cleanup(struct zfcp_fsf_req *);
115 extern struct zfcp_fsf_req *zfcp_fsf_send_fcp_command_task_management(
116 struct zfcp_adapter *, struct zfcp_unit *, u8, int);
117 extern struct zfcp_fsf_req *zfcp_fsf_abort_fcp_command(
118 unsigned long, struct zfcp_adapter *, struct zfcp_unit *, int);
120 /******************************** FCP ****************************************/
121 extern int zfcp_nameserver_enqueue(struct zfcp_adapter *);
122 extern int zfcp_ns_gid_pn_request(struct zfcp_erp_action *);
124 /******************************* SCSI ****************************************/
125 extern int zfcp_adapter_scsi_register(struct zfcp_adapter *);
126 extern void zfcp_adapter_scsi_unregister(struct zfcp_adapter *);
127 extern void zfcp_set_fcp_dl(struct fcp_cmnd_iu *, fcp_dl_t);
128 extern char *zfcp_get_fcp_rsp_info_ptr(struct fcp_rsp_iu *);
129 extern void set_host_byte(u32 *, char);
130 extern void set_driver_byte(u32 *, char);
131 extern char *zfcp_get_fcp_sns_info_ptr(struct fcp_rsp_iu *);
132 extern void zfcp_fsf_start_scsi_er_timer(struct zfcp_adapter *);
133 extern fcp_dl_t zfcp_get_fcp_dl(struct fcp_cmnd_iu *);
135 extern int zfcp_scsi_command_async(struct zfcp_adapter *,struct zfcp_unit *unit,
136 struct scsi_cmnd *scsi_cmnd);
137 extern int zfcp_scsi_command_sync(struct zfcp_unit *unit,
138 struct scsi_cmnd *scsi_cmnd);
140 /******************************** ERP ****************************************/
141 extern void zfcp_erp_modify_adapter_status(struct zfcp_adapter *, u32, int);
142 extern int zfcp_erp_adapter_reopen(struct zfcp_adapter *, int);
143 extern int zfcp_erp_adapter_shutdown(struct zfcp_adapter *, int);
144 extern int zfcp_erp_adapter_shutdown_all(void);
145 extern void zfcp_erp_adapter_failed(struct zfcp_adapter *);
147 extern void zfcp_erp_modify_port_status(struct zfcp_port *, u32, int);
148 extern int zfcp_erp_port_reopen(struct zfcp_port *, int);
149 extern int zfcp_erp_port_shutdown(struct zfcp_port *, int);
150 extern int zfcp_erp_port_forced_reopen(struct zfcp_port *, int);
151 extern void zfcp_erp_port_failed(struct zfcp_port *);
152 extern int zfcp_erp_port_reopen_all(struct zfcp_adapter *, int);
154 extern void zfcp_erp_modify_unit_status(struct zfcp_unit *, u32, int);
155 extern int zfcp_erp_unit_reopen(struct zfcp_unit *, int);
156 extern int zfcp_erp_unit_shutdown(struct zfcp_unit *, int);
157 extern void zfcp_erp_unit_failed(struct zfcp_unit *);
159 extern int zfcp_erp_thread_setup(struct zfcp_adapter *);
160 extern int zfcp_erp_thread_kill(struct zfcp_adapter *);
161 extern int zfcp_erp_wait(struct zfcp_adapter *);
162 extern int zfcp_erp_async_handler(struct zfcp_erp_action *, unsigned long);
164 extern int zfcp_test_link(struct zfcp_port *);
166 /******************************** AUX ****************************************/
167 extern void zfcp_cmd_dbf_event_fsf(const char *, struct zfcp_fsf_req *,
169 extern void zfcp_cmd_dbf_event_scsi(const char *, struct scsi_cmnd *);
170 extern void zfcp_in_els_dbf_event(struct zfcp_adapter *, const char *,
171 struct fsf_status_read_buffer *, int);
172 #ifdef ZFCP_STAT_REQSIZES
173 extern int zfcp_statistics_inc(struct list_head *, u32);
175 #endif /* ZFCP_EXT_H */