xref: /freebsd/sys/cam/ctl/ctl.h (revision 2e3f49888ec8851bafb22011533217487764fdb0)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
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  */
34 /*
35  * Function definitions used both within CTL and potentially in various CTL
36  * clients.
37  *
38  * Author: Ken Merry <ken@FreeBSD.org>
39  */
40 
41 #ifndef	_CTL_H_
42 #define	_CTL_H_
43 
44 #define	CTL_RETVAL_COMPLETE	0
45 #define	CTL_RETVAL_QUEUED	1
46 #define	CTL_RETVAL_ALLOCATED	2
47 #define	CTL_RETVAL_ERROR	3
48 
49 typedef enum {
50 	CTL_PORT_NONE		= 0x00,
51 	CTL_PORT_FC		= 0x01,
52 	CTL_PORT_SCSI		= 0x02,
53 	CTL_PORT_IOCTL		= 0x04,
54 	CTL_PORT_INTERNAL	= 0x08,
55 	CTL_PORT_ISCSI		= 0x10,
56 	CTL_PORT_SAS		= 0x20,
57 	CTL_PORT_UMASS		= 0x40,
58 	CTL_PORT_ALL		= 0xff,
59 	CTL_PORT_ISC		= 0x100 // FC port for inter-shelf communication
60 } ctl_port_type;
61 
62 struct ctl_port_entry {
63 	ctl_port_type		port_type;
64 	char			port_name[64];
65 	int32_t			targ_port;
66 	int			physical_port;
67 	int			virtual_port;
68 	u_int			flags;
69 #define	CTL_PORT_WWNN_VALID	0x01
70 #define	CTL_PORT_WWPN_VALID	0x02
71 	uint64_t		wwnn;
72 	uint64_t		wwpn;
73 	int			online;
74 };
75 
76 struct ctl_modepage_header {
77 	uint8_t			page_code;
78 	uint8_t			subpage;
79 	uint16_t		len_used;
80 	uint16_t		len_left;
81 };
82 
83 union ctl_modepage_info {
84 	struct ctl_modepage_header header;
85 };
86 
87 /*
88  * Serial number length, for VPD page 0x80.
89  */
90 #define	CTL_SN_LEN	16
91 
92 /*
93  * Device ID length, for VPD page 0x83.
94  */
95 #define	CTL_DEVID_LEN	64
96 #define	CTL_DEVID_MIN_LEN	16
97 /*
98  * WWPN length, for VPD page 0x83.
99  */
100 #define CTL_WWPN_LEN   8
101 
102 #define	CTL_DRIVER_NAME_LEN	32
103 
104 /*
105  * Unit attention types. ASC/ASCQ values for these should be placed in
106  * ctl_build_ua.  These are also listed in order of reporting priority.
107  * i.e. a poweron UA is reported first, bus reset second, etc.
108  */
109 typedef enum {
110 	CTL_UA_NONE		= 0x0000,
111 	CTL_UA_POWERON		= 0x0001,
112 	CTL_UA_BUS_RESET	= 0x0002,
113 	CTL_UA_TARG_RESET	= 0x0004,
114 	CTL_UA_I_T_NEXUS_LOSS	= 0x0008,
115 	CTL_UA_LUN_RESET	= 0x0010,
116 	CTL_UA_LUN_CHANGE	= 0x0020,
117 	CTL_UA_MODE_CHANGE	= 0x0040,
118 	CTL_UA_LOG_CHANGE	= 0x0080,
119 	CTL_UA_INQ_CHANGE	= 0x0100,
120 	CTL_UA_RES_PREEMPT	= 0x0400,
121 	CTL_UA_RES_RELEASE	= 0x0800,
122 	CTL_UA_REG_PREEMPT	= 0x1000,
123 	CTL_UA_ASYM_ACC_CHANGE	= 0x2000,
124 	CTL_UA_CAPACITY_CHANGE	= 0x4000,
125 	CTL_UA_THIN_PROV_THRES	= 0x8000,
126 	CTL_UA_MEDIUM_CHANGE	= 0x10000,
127 	CTL_UA_IE		= 0x20000
128 } ctl_ua_type;
129 
130 #ifdef	_KERNEL
131 
132 #ifdef MALLOC_DECLARE	/* from malloc.h */
133 MALLOC_DECLARE(M_CTL);
134 #endif
135 
136 struct ctl_page_index;
137 
138 #ifdef SYSCTL_DECL	/* from sysctl.h */
139 SYSCTL_DECL(_kern_cam_ctl);
140 #endif
141 
142 struct cdev;
143 struct ctl_lun;
144 struct ctl_port;
145 struct ctl_softc;
146 struct ctl_scsiio;
147 struct sbuf;
148 union ctl_io;
149 
150 /*
151  * Put a string into an sbuf, escaping characters that are illegal or not
152  * recommended in XML.  Note this doesn't escape everything, just > < and &.
153  */
154 int ctl_sbuf_printf_esc(struct sbuf *sb, char *str, int size);
155 
156 int ctl_ffz(uint32_t *mask, uint32_t first, uint32_t last);
157 int ctl_set_mask(uint32_t *mask, uint32_t bit);
158 int ctl_clear_mask(uint32_t *mask, uint32_t bit);
159 int ctl_is_set(uint32_t *mask, uint32_t bit);
160 int ctl_default_page_handler(struct ctl_scsiio *ctsio,
161 			     struct ctl_page_index *page_index,
162 			     uint8_t *page_ptr);
163 int ctl_ie_page_handler(struct ctl_scsiio *ctsio,
164 			struct ctl_page_index *page_index,
165 			uint8_t *page_ptr);
166 int ctl_temp_log_sense_handler(struct ctl_scsiio *ctsio,
167 				   struct ctl_page_index *page_index,
168 				   int pc);
169 int ctl_lbp_log_sense_handler(struct ctl_scsiio *ctsio,
170 				   struct ctl_page_index *page_index,
171 				   int pc);
172 int ctl_sap_log_sense_handler(struct ctl_scsiio *ctsio,
173 				   struct ctl_page_index *page_index,
174 				   int pc);
175 int ctl_ie_log_sense_handler(struct ctl_scsiio *ctsio,
176 				   struct ctl_page_index *page_index,
177 				   int pc);
178 int ctl_config_move_done(union ctl_io *io, bool samethr);
179 void ctl_datamove_done(union ctl_io *io, bool samethr);
180 void ctl_datamove(union ctl_io *io);
181 void ctl_serseq_done(union ctl_io *io);
182 void ctl_done(union ctl_io *io);
183 void ctl_data_submit_done(union ctl_io *io);
184 void ctl_config_read_done(union ctl_io *io);
185 void ctl_config_write_done(union ctl_io *io);
186 void ctl_portDB_changed(int portnum);
187 int ctl_ioctl_io(struct cdev *dev, u_long cmd, caddr_t addr, int flag,
188 		 struct thread *td);
189 
190 void ctl_est_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua);
191 void ctl_est_ua_port(struct ctl_lun *lun, int port, uint32_t except,
192     ctl_ua_type ua);
193 void ctl_est_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua);
194 void ctl_clr_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua);
195 void ctl_clr_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua);
196 void ctl_clr_ua_allluns(struct ctl_softc *ctl_softc, uint32_t initidx,
197     ctl_ua_type ua_type);
198 
199 uint32_t ctl_decode_lun(uint64_t encoded);
200 uint64_t ctl_encode_lun(uint32_t decoded);
201 
202 void ctl_isc_announce_lun(struct ctl_lun *lun);
203 void ctl_isc_announce_port(struct ctl_port *port);
204 void ctl_isc_announce_iid(struct ctl_port *port, int iid);
205 void ctl_isc_announce_mode(struct ctl_lun *lun, uint32_t initidx,
206     uint8_t page, uint8_t subpage);
207 
208 int ctl_expand_number(const char *buf, uint64_t *num);
209 
210 #endif	/* _KERNEL */
211 
212 #endif	/* _CTL_H_ */
213 
214 /*
215  * vim: ts=8
216  */
217