xref: /freebsd/sys/cam/ctl/ctl.h (revision af23369a6deaaeb612ab266eb88b8bb8d560c322)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3  *
4  * Copyright (c) 2003 Silicon Graphics International Corp.
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions, and the following disclaimer,
12  *    without modification.
13  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
14  *    substantially similar to the "NO WARRANTY" disclaimer below
15  *    ("Disclaimer") and any redistribution must be conditioned upon
16  *    including a substantially similar Disclaimer requirement for further
17  *    binary redistribution.
18  *
19  * NO WARRANTY
20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
23  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
24  * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
28  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
29  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30  * POSSIBILITY OF SUCH DAMAGES.
31  *
32  * $Id: //depot/users/kenm/FreeBSD-test2/sys/cam/ctl/ctl.h#5 $
33  * $FreeBSD$
34  */
35 /*
36  * Function definitions used both within CTL and potentially in various CTL
37  * clients.
38  *
39  * Author: Ken Merry <ken@FreeBSD.org>
40  */
41 
42 #ifndef	_CTL_H_
43 #define	_CTL_H_
44 
45 #define	CTL_RETVAL_COMPLETE	0
46 #define	CTL_RETVAL_QUEUED	1
47 #define	CTL_RETVAL_ALLOCATED	2
48 #define	CTL_RETVAL_ERROR	3
49 
50 typedef enum {
51 	CTL_PORT_NONE		= 0x00,
52 	CTL_PORT_FC		= 0x01,
53 	CTL_PORT_SCSI		= 0x02,
54 	CTL_PORT_IOCTL		= 0x04,
55 	CTL_PORT_INTERNAL	= 0x08,
56 	CTL_PORT_ISCSI		= 0x10,
57 	CTL_PORT_SAS		= 0x20,
58 	CTL_PORT_UMASS		= 0x40,
59 	CTL_PORT_ALL		= 0xff,
60 	CTL_PORT_ISC		= 0x100 // FC port for inter-shelf communication
61 } ctl_port_type;
62 
63 struct ctl_port_entry {
64 	ctl_port_type		port_type;
65 	char			port_name[64];
66 	int32_t			targ_port;
67 	int			physical_port;
68 	int			virtual_port;
69 	u_int			flags;
70 #define	CTL_PORT_WWNN_VALID	0x01
71 #define	CTL_PORT_WWPN_VALID	0x02
72 	uint64_t		wwnn;
73 	uint64_t		wwpn;
74 	int			online;
75 };
76 
77 struct ctl_modepage_header {
78 	uint8_t			page_code;
79 	uint8_t			subpage;
80 	uint16_t		len_used;
81 	uint16_t		len_left;
82 };
83 
84 union ctl_modepage_info {
85 	struct ctl_modepage_header header;
86 };
87 
88 /*
89  * Serial number length, for VPD page 0x80.
90  */
91 #define	CTL_SN_LEN	16
92 
93 /*
94  * Device ID length, for VPD page 0x83.
95  */
96 #define	CTL_DEVID_LEN	64
97 #define	CTL_DEVID_MIN_LEN	16
98 /*
99  * WWPN length, for VPD page 0x83.
100  */
101 #define CTL_WWPN_LEN   8
102 
103 #define	CTL_DRIVER_NAME_LEN	32
104 
105 /*
106  * Unit attention types. ASC/ASCQ values for these should be placed in
107  * ctl_build_ua.  These are also listed in order of reporting priority.
108  * i.e. a poweron UA is reported first, bus reset second, etc.
109  */
110 typedef enum {
111 	CTL_UA_NONE		= 0x0000,
112 	CTL_UA_POWERON		= 0x0001,
113 	CTL_UA_BUS_RESET	= 0x0002,
114 	CTL_UA_TARG_RESET	= 0x0004,
115 	CTL_UA_I_T_NEXUS_LOSS	= 0x0008,
116 	CTL_UA_LUN_RESET	= 0x0010,
117 	CTL_UA_LUN_CHANGE	= 0x0020,
118 	CTL_UA_MODE_CHANGE	= 0x0040,
119 	CTL_UA_LOG_CHANGE	= 0x0080,
120 	CTL_UA_INQ_CHANGE	= 0x0100,
121 	CTL_UA_RES_PREEMPT	= 0x0400,
122 	CTL_UA_RES_RELEASE	= 0x0800,
123 	CTL_UA_REG_PREEMPT	= 0x1000,
124 	CTL_UA_ASYM_ACC_CHANGE	= 0x2000,
125 	CTL_UA_CAPACITY_CHANGE	= 0x4000,
126 	CTL_UA_THIN_PROV_THRES	= 0x8000,
127 	CTL_UA_MEDIUM_CHANGE	= 0x10000,
128 	CTL_UA_IE		= 0x20000
129 } ctl_ua_type;
130 
131 #ifdef	_KERNEL
132 
133 MALLOC_DECLARE(M_CTL);
134 
135 struct ctl_page_index;
136 
137 #ifdef SYSCTL_DECL	/* from sysctl.h */
138 SYSCTL_DECL(_kern_cam_ctl);
139 #endif
140 
141 struct ctl_lun;
142 struct ctl_port;
143 struct ctl_softc;
144 
145 /*
146  * Put a string into an sbuf, escaping characters that are illegal or not
147  * recommended in XML.  Note this doesn't escape everything, just > < and &.
148  */
149 int ctl_sbuf_printf_esc(struct sbuf *sb, char *str, int size);
150 
151 int ctl_ffz(uint32_t *mask, uint32_t first, uint32_t last);
152 int ctl_set_mask(uint32_t *mask, uint32_t bit);
153 int ctl_clear_mask(uint32_t *mask, uint32_t bit);
154 int ctl_is_set(uint32_t *mask, uint32_t bit);
155 int ctl_default_page_handler(struct ctl_scsiio *ctsio,
156 			     struct ctl_page_index *page_index,
157 			     uint8_t *page_ptr);
158 int ctl_ie_page_handler(struct ctl_scsiio *ctsio,
159 			struct ctl_page_index *page_index,
160 			uint8_t *page_ptr);
161 int ctl_temp_log_sense_handler(struct ctl_scsiio *ctsio,
162 				   struct ctl_page_index *page_index,
163 				   int pc);
164 int ctl_lbp_log_sense_handler(struct ctl_scsiio *ctsio,
165 				   struct ctl_page_index *page_index,
166 				   int pc);
167 int ctl_sap_log_sense_handler(struct ctl_scsiio *ctsio,
168 				   struct ctl_page_index *page_index,
169 				   int pc);
170 int ctl_ie_log_sense_handler(struct ctl_scsiio *ctsio,
171 				   struct ctl_page_index *page_index,
172 				   int pc);
173 int ctl_config_move_done(union ctl_io *io, bool samethr);
174 void ctl_datamove_done(union ctl_io *io, bool samethr);
175 void ctl_datamove(union ctl_io *io);
176 void ctl_serseq_done(union ctl_io *io);
177 void ctl_done(union ctl_io *io);
178 void ctl_data_submit_done(union ctl_io *io);
179 void ctl_config_read_done(union ctl_io *io);
180 void ctl_config_write_done(union ctl_io *io);
181 void ctl_portDB_changed(int portnum);
182 int ctl_ioctl_io(struct cdev *dev, u_long cmd, caddr_t addr, int flag,
183 		 struct thread *td);
184 
185 void ctl_est_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua);
186 void ctl_est_ua_port(struct ctl_lun *lun, int port, uint32_t except,
187     ctl_ua_type ua);
188 void ctl_est_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua);
189 void ctl_clr_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua);
190 void ctl_clr_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua);
191 void ctl_clr_ua_allluns(struct ctl_softc *ctl_softc, uint32_t initidx,
192     ctl_ua_type ua_type);
193 
194 uint32_t ctl_decode_lun(uint64_t encoded);
195 uint64_t ctl_encode_lun(uint32_t decoded);
196 
197 void ctl_isc_announce_lun(struct ctl_lun *lun);
198 void ctl_isc_announce_port(struct ctl_port *port);
199 void ctl_isc_announce_iid(struct ctl_port *port, int iid);
200 void ctl_isc_announce_mode(struct ctl_lun *lun, uint32_t initidx,
201     uint8_t page, uint8_t subpage);
202 
203 int ctl_expand_number(const char *buf, uint64_t *num);
204 
205 #endif	/* _KERNEL */
206 
207 #endif	/* _CTL_H_ */
208 
209 /*
210  * vim: ts=8
211  */
212