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