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
27extern struct zfcp_data zfcp_data;
28
29/******************************** SYSFS  *************************************/
30extern int  zfcp_sysfs_driver_create_files(struct device_driver *);
31extern void zfcp_sysfs_driver_remove_files(struct device_driver *);
32extern int  zfcp_sysfs_adapter_create_files(struct device *);
33extern void zfcp_sysfs_adapter_remove_files(struct device *);
34extern int  zfcp_sysfs_port_create_files(struct device *, u32);
35extern void zfcp_sysfs_port_remove_files(struct device *, u32);
36extern int  zfcp_sysfs_unit_create_files(struct device *);
37extern void zfcp_sysfs_unit_remove_files(struct device *);
38extern void zfcp_sysfs_port_release(struct device *);
39extern void zfcp_sysfs_unit_release(struct device *);
40
41/**************************** CONFIGURATION  *********************************/
42extern struct zfcp_unit *zfcp_get_unit_by_lun(struct zfcp_port *, fcp_lun_t);
43extern struct zfcp_port *zfcp_get_port_by_wwpn(struct zfcp_adapter *, wwn_t);
44extern struct zfcp_port *zfcp_get_port_by_did(struct zfcp_adapter *, u32);
45struct zfcp_adapter *zfcp_get_adapter_by_busid(char *);
46extern struct zfcp_adapter *zfcp_adapter_enqueue(struct ccw_device *);
47extern int    zfcp_adapter_debug_register(struct zfcp_adapter *);
48extern void   zfcp_adapter_dequeue(struct zfcp_adapter *);
49extern void   zfcp_adapter_debug_unregister(struct zfcp_adapter *);
50extern struct zfcp_port *zfcp_port_enqueue(struct zfcp_adapter *, wwn_t,
51					   u32, u32);
52extern void   zfcp_port_dequeue(struct zfcp_port *);
53extern struct zfcp_unit *zfcp_unit_enqueue(struct zfcp_port *, fcp_lun_t);
54extern void   zfcp_unit_dequeue(struct zfcp_unit *);
55
56/******************************* S/390 IO ************************************/
57extern int  zfcp_ccw_register(void);
58
59extern void zfcp_qdio_zero_sbals(struct qdio_buffer **, int, int);
60extern int  zfcp_qdio_allocate(struct zfcp_adapter *);
61extern int  zfcp_qdio_allocate_queues(struct zfcp_adapter *);
62extern void zfcp_qdio_free_queues(struct zfcp_adapter *);
63extern int  zfcp_qdio_determine_pci(struct zfcp_qdio_queue *,
64				    struct zfcp_fsf_req *);
65
66extern volatile struct qdio_buffer_element *zfcp_qdio_sbale_req
67	(struct zfcp_fsf_req *, int, int);
68extern volatile struct qdio_buffer_element *zfcp_qdio_sbale_curr
69	(struct zfcp_fsf_req *);
70extern int zfcp_qdio_sbals_from_sg
71	(struct zfcp_fsf_req *, unsigned long, struct scatterlist *, int, int);
72extern int zfcp_qdio_sbals_from_scsicmnd
73	(struct zfcp_fsf_req *, unsigned long, struct scsi_cmnd *);
74
75
76/******************************** FSF ****************************************/
77extern int  zfcp_fsf_open_port(struct zfcp_erp_action *);
78extern int  zfcp_fsf_close_port(struct zfcp_erp_action *);
79extern int  zfcp_fsf_close_physical_port(struct zfcp_erp_action *);
80
81extern int  zfcp_fsf_open_unit(struct zfcp_erp_action *);
82extern int  zfcp_fsf_close_unit(struct zfcp_erp_action *);
83
84extern int  zfcp_fsf_exchange_config_data(struct zfcp_erp_action *);
85extern int  zfcp_fsf_exchange_port_data(struct zfcp_erp_action *,
86					struct zfcp_adapter *,
87					struct fsf_qtcb_bottom_port *);
88extern int  zfcp_fsf_control_file(struct zfcp_adapter *, struct zfcp_fsf_req **,
89				  u32, u32, struct zfcp_sg_list *);
90extern void zfcp_fsf_start_timer(struct zfcp_fsf_req *, unsigned long);
91extern void zfcp_erp_start_timer(struct zfcp_fsf_req *);
92extern void zfcp_fsf_req_dismiss_all(struct zfcp_adapter *);
93extern int  zfcp_fsf_status_read(struct zfcp_adapter *, int);
94extern int zfcp_fsf_req_create(struct zfcp_adapter *, u32, int, mempool_t *,
95			       unsigned long *, struct zfcp_fsf_req **);
96extern int zfcp_fsf_send_ct(struct zfcp_send_ct *, mempool_t *,
97			    struct zfcp_erp_action *);
98extern int zfcp_fsf_send_els(struct zfcp_send_els *);
99extern int  zfcp_fsf_send_fcp_command_task(struct zfcp_adapter *,
100					   struct zfcp_unit *,
101					   struct scsi_cmnd *, int, int);
102extern int  zfcp_fsf_req_complete(struct zfcp_fsf_req *);
103extern void zfcp_fsf_incoming_els(struct zfcp_fsf_req *);
104extern void zfcp_fsf_req_free(struct zfcp_fsf_req *);
105extern struct zfcp_fsf_req *zfcp_fsf_send_fcp_command_task_management(
106	struct zfcp_adapter *, struct zfcp_unit *, u8, int);
107extern struct zfcp_fsf_req *zfcp_fsf_abort_fcp_command(
108	unsigned long, struct zfcp_adapter *, struct zfcp_unit *, int);
109
110/******************************* FC/FCP **************************************/
111extern int  zfcp_nameserver_enqueue(struct zfcp_adapter *);
112extern int  zfcp_ns_gid_pn_request(struct zfcp_erp_action *);
113extern int  zfcp_check_ct_response(struct ct_hdr *);
114extern int  zfcp_handle_els_rjt(u32, struct zfcp_ls_rjt_par *);
115extern void zfcp_plogi_evaluate(struct zfcp_port *, struct fsf_plogi *);
116
117/******************************* SCSI ****************************************/
118extern int  zfcp_adapter_scsi_register(struct zfcp_adapter *);
119extern void zfcp_adapter_scsi_unregister(struct zfcp_adapter *);
120extern void zfcp_set_fcp_dl(struct fcp_cmnd_iu *, fcp_dl_t);
121extern char *zfcp_get_fcp_rsp_info_ptr(struct fcp_rsp_iu *);
122extern void set_host_byte(int *, char);
123extern void set_driver_byte(int *, char);
124extern char *zfcp_get_fcp_sns_info_ptr(struct fcp_rsp_iu *);
125extern fcp_dl_t zfcp_get_fcp_dl(struct fcp_cmnd_iu *);
126
127extern int zfcp_scsi_command_async(struct zfcp_adapter *,struct zfcp_unit *,
128				   struct scsi_cmnd *, int);
129extern int zfcp_scsi_command_sync(struct zfcp_unit *, struct scsi_cmnd *, int);
130extern struct fc_function_template zfcp_transport_functions;
131
132/******************************** ERP ****************************************/
133extern void zfcp_erp_modify_adapter_status(struct zfcp_adapter *, u32, int);
134extern int  zfcp_erp_adapter_reopen(struct zfcp_adapter *, int);
135extern int  zfcp_erp_adapter_shutdown(struct zfcp_adapter *, int);
136extern void zfcp_erp_adapter_failed(struct zfcp_adapter *);
137
138extern void zfcp_erp_modify_port_status(struct zfcp_port *, u32, int);
139extern int  zfcp_erp_port_reopen(struct zfcp_port *, int);
140extern int  zfcp_erp_port_shutdown(struct zfcp_port *, int);
141extern int  zfcp_erp_port_forced_reopen(struct zfcp_port *, int);
142extern void zfcp_erp_port_failed(struct zfcp_port *);
143extern int  zfcp_erp_port_reopen_all(struct zfcp_adapter *, int);
144
145extern void zfcp_erp_modify_unit_status(struct zfcp_unit *, u32, int);
146extern int  zfcp_erp_unit_reopen(struct zfcp_unit *, int);
147extern int  zfcp_erp_unit_shutdown(struct zfcp_unit *, int);
148extern void zfcp_erp_unit_failed(struct zfcp_unit *);
149
150extern int  zfcp_erp_thread_setup(struct zfcp_adapter *);
151extern int  zfcp_erp_thread_kill(struct zfcp_adapter *);
152extern int  zfcp_erp_wait(struct zfcp_adapter *);
153extern void zfcp_erp_async_handler(struct zfcp_erp_action *, unsigned long);
154
155extern int  zfcp_test_link(struct zfcp_port *);
156
157extern void zfcp_erp_port_boxed(struct zfcp_port *);
158extern void zfcp_erp_unit_boxed(struct zfcp_unit *);
159extern void zfcp_erp_port_access_denied(struct zfcp_port *);
160extern void zfcp_erp_unit_access_denied(struct zfcp_unit *);
161extern void zfcp_erp_adapter_access_changed(struct zfcp_adapter *);
162extern void zfcp_erp_port_access_changed(struct zfcp_port *);
163extern void zfcp_erp_unit_access_changed(struct zfcp_unit *);
164
165/******************************** AUX ****************************************/
166extern void zfcp_hba_dbf_event_fsf_response(struct zfcp_fsf_req *);
167extern void zfcp_hba_dbf_event_fsf_unsol(const char *, struct zfcp_adapter *,
168					 struct fsf_status_read_buffer *);
169extern void zfcp_hba_dbf_event_qdio(struct zfcp_adapter *,
170				    unsigned int, unsigned int, unsigned int,
171				    int, int);
172
173extern void zfcp_san_dbf_event_ct_request(struct zfcp_fsf_req *);
174extern void zfcp_san_dbf_event_ct_response(struct zfcp_fsf_req *);
175extern void zfcp_san_dbf_event_els_request(struct zfcp_fsf_req *);
176extern void zfcp_san_dbf_event_els_response(struct zfcp_fsf_req *);
177extern void zfcp_san_dbf_event_incoming_els(struct zfcp_fsf_req *);
178
179extern void zfcp_scsi_dbf_event_result(const char *, int, struct zfcp_adapter *,
180				       struct scsi_cmnd *,
181				       struct zfcp_fsf_req *);
182extern void zfcp_scsi_dbf_event_abort(const char *, struct zfcp_adapter *,
183				      struct scsi_cmnd *, struct zfcp_fsf_req *,
184				      unsigned long);
185extern void zfcp_scsi_dbf_event_devreset(const char *, u8, struct zfcp_unit *,
186					 struct scsi_cmnd *);
187extern int zfcp_reqlist_isempty(struct zfcp_adapter *);
188
189#endif	/* ZFCP_EXT_H */
190