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MFV r351500: Fix CLEAR_HASH macro to be usable as a single statement.
[FreeBSD/FreeBSD.git] / sys / dev / ipmi / ipmivars.h
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3  *
4  * Copyright (c) 2006 IronPort Systems Inc. <ambrisko@ironport.com>
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  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  *
28  * $FreeBSD$
29  */
30
31 #ifndef __IPMIVARS_H__
32 #define __IPMIVARS_H__
33
34 struct ipmi_get_info {
35         int             iface_type;
36         uint64_t        address;
37         int             offset;
38         int             io_mode;
39         int             irq;
40 };
41
42 struct ipmi_device;
43
44 struct ipmi_request {
45         TAILQ_ENTRY(ipmi_request) ir_link;
46         struct ipmi_device *ir_owner;   /* Driver uses NULL. */
47         u_char          *ir_request;    /* Request is data to send to BMC. */
48         size_t          ir_requestlen;
49         u_char          *ir_reply;      /* Reply is data read from BMC. */
50         size_t          ir_replybuflen; /* Length of ir_reply[] buffer. */
51         int             ir_replylen;    /* Length of reply from BMC. */
52         int             ir_error;
53         long            ir_msgid;
54         uint8_t         ir_addr;
55         uint8_t         ir_command;
56         uint8_t         ir_compcode;
57 };
58
59 #define MAX_RES                         3
60 #define KCS_DATA                        0
61 #define KCS_CTL_STS                     1
62 #define SMIC_DATA                       0
63 #define SMIC_CTL_STS                    1
64 #define SMIC_FLAGS                      2
65
66 struct ipmi_softc;
67
68 /* Per file descriptor data. */
69 struct ipmi_device {
70         TAILQ_ENTRY(ipmi_device) ipmi_link;
71         TAILQ_HEAD(,ipmi_request) ipmi_completed_requests;
72         struct selinfo          ipmi_select;
73         struct ipmi_softc       *ipmi_softc;
74         int                     ipmi_closing;
75         int                     ipmi_requests;
76         u_char                  ipmi_address;   /* IPMB address. */
77         u_char                  ipmi_lun;
78 };
79
80 struct ipmi_kcs {
81 };
82
83 struct ipmi_smic {
84 };
85
86 struct ipmi_ssif {
87         device_t smbus;
88         int     smbus_address;
89 };
90
91 struct ipmi_softc {
92         device_t                ipmi_dev;
93         union {
94                 struct ipmi_kcs kcs;
95                 struct ipmi_smic smic;
96                 struct ipmi_ssif ssif;
97         } _iface;
98         int                     ipmi_io_rid;
99         int                     ipmi_io_type;
100         struct mtx              ipmi_io_lock;
101         struct resource         *ipmi_io_res[MAX_RES];
102         int                     ipmi_io_spacing;
103         int                     ipmi_irq_rid;
104         struct resource         *ipmi_irq_res;
105         void                    *ipmi_irq;
106         int                     ipmi_detaching;
107         int                     ipmi_opened;
108         uint8_t                 ipmi_dev_support;       /* IPMI_ADS_* */
109         struct cdev             *ipmi_cdev;
110         TAILQ_HEAD(,ipmi_request) ipmi_pending_requests;
111         int                     ipmi_driver_requests_polled;
112         eventhandler_tag        ipmi_power_cycle_tag;
113         eventhandler_tag        ipmi_watchdog_tag;
114         eventhandler_tag        ipmi_shutdown_tag;
115         int                     ipmi_watchdog_active;
116         int                     ipmi_watchdog_actions;
117         int                     ipmi_watchdog_pretimeout;
118         struct intr_config_hook ipmi_ich;
119         struct mtx              ipmi_requests_lock;
120         struct cv               ipmi_request_added;
121         struct proc             *ipmi_kthread;
122         driver_intr_t           *ipmi_intr;
123         int                     (*ipmi_startup)(struct ipmi_softc *);
124         int                     (*ipmi_enqueue_request)(struct ipmi_softc *, struct ipmi_request *);
125         int                     (*ipmi_driver_request)(struct ipmi_softc *, struct ipmi_request *, int);
126 };
127
128 #define ipmi_ssif_smbus_address         _iface.ssif.smbus_address
129 #define ipmi_ssif_smbus                 _iface.ssif.smbus
130
131 struct ipmi_ipmb {
132         u_char foo;
133 };
134
135 #define KCS_MODE                0x01
136 #define SMIC_MODE               0x02
137 #define BT_MODE                 0x03
138 #define SSIF_MODE               0x04
139
140 /* KCS status flags */
141 #define KCS_STATUS_OBF                  0x01 /* Data Out ready from BMC */
142 #define KCS_STATUS_IBF                  0x02 /* Data In from System */
143 #define KCS_STATUS_SMS_ATN              0x04 /* Ready in RX queue */
144 #define KCS_STATUS_C_D                  0x08 /* Command/Data register write*/
145 #define KCS_STATUS_OEM1                 0x10
146 #define KCS_STATUS_OEM2                 0x20
147 #define KCS_STATUS_S0                   0x40
148 #define KCS_STATUS_S1                   0x80
149  #define KCS_STATUS_STATE(x)            ((x)>>6)
150  #define KCS_STATUS_STATE_IDLE          0x0
151  #define KCS_STATUS_STATE_READ          0x1
152  #define KCS_STATUS_STATE_WRITE         0x2
153  #define KCS_STATUS_STATE_ERROR         0x3
154 #define KCS_IFACE_STATUS_OK             0x00
155 #define KCS_IFACE_STATUS_ABORT          0x01
156 #define KCS_IFACE_STATUS_ILLEGAL        0x02
157 #define KCS_IFACE_STATUS_LENGTH_ERR     0x06
158 #define KCS_IFACE_STATUS_UNKNOWN_ERR    0xff
159
160 /* KCS control codes */
161 #define KCS_CONTROL_GET_STATUS_ABORT    0x60
162 #define KCS_CONTROL_WRITE_START         0x61
163 #define KCS_CONTROL_WRITE_END           0x62
164 #define KCS_DATA_IN_READ                0x68
165
166 /* SMIC status flags */
167 #define SMIC_STATUS_BUSY                0x01 /* System set and BMC clears it */
168 #define SMIC_STATUS_SMS_ATN             0x04 /* BMC has a message */
169 #define SMIC_STATUS_EVT_ATN             0x08 /* Event has been RX */
170 #define SMIC_STATUS_SMI                 0x10 /* asserted SMI */
171 #define SMIC_STATUS_TX_RDY              0x40 /* Ready to accept WRITE */
172 #define SMIC_STATUS_RX_RDY              0x80 /* Ready to read */
173 #define SMIC_STATUS_RESERVED            0x22
174
175 /* SMIC control codes */
176 #define SMIC_CC_SMS_GET_STATUS          0x40
177 #define SMIC_CC_SMS_WR_START            0x41
178 #define SMIC_CC_SMS_WR_NEXT             0x42
179 #define SMIC_CC_SMS_WR_END              0x43
180 #define SMIC_CC_SMS_RD_START            0x44
181 #define SMIC_CC_SMS_RD_NEXT             0x45
182 #define SMIC_CC_SMS_RD_END              0x46
183
184 /* SMIC status codes */
185 #define SMIC_SC_SMS_RDY                 0xc0
186 #define SMIC_SC_SMS_WR_START            0xc1
187 #define SMIC_SC_SMS_WR_NEXT             0xc2
188 #define SMIC_SC_SMS_WR_END              0xc3
189 #define SMIC_SC_SMS_RD_START            0xc4
190 #define SMIC_SC_SMS_RD_NEXT             0xc5
191 #define SMIC_SC_SMS_RD_END              0xc6
192
193 #define IPMI_ADDR(netfn, lun)           ((netfn) << 2 | (lun))
194 #define IPMI_REPLY_ADDR(addr)           ((addr) + 0x4)
195
196 #define IPMI_LOCK(sc)           mtx_lock(&(sc)->ipmi_requests_lock)
197 #define IPMI_UNLOCK(sc)         mtx_unlock(&(sc)->ipmi_requests_lock)
198 #define IPMI_LOCK_ASSERT(sc)    mtx_assert(&(sc)->ipmi_requests_lock, MA_OWNED)
199
200 #define IPMI_IO_LOCK(sc)        mtx_lock(&(sc)->ipmi_io_lock)
201 #define IPMI_IO_UNLOCK(sc)      mtx_unlock(&(sc)->ipmi_io_lock)
202 #define IPMI_IO_LOCK_ASSERT(sc) mtx_assert(&(sc)->ipmi_io_lock, MA_OWNED)
203
204 /* I/O to a single I/O resource. */
205 #define INB_SINGLE(sc, x)                                               \
206         bus_read_1((sc)->ipmi_io_res[0], (sc)->ipmi_io_spacing * (x))
207 #define OUTB_SINGLE(sc, x, value)                                       \
208         bus_write_1((sc)->ipmi_io_res[0], (sc)->ipmi_io_spacing * (x), value)
209
210 /* I/O with each register in its in I/O resource. */
211 #define INB_MULTIPLE(sc, x)                     \
212         bus_read_1((sc)->ipmi_io_res[(x)], 0)
213 #define OUTB_MULTIPLE(sc, x, value)                                     \
214         bus_write_1((sc)->ipmi_io_res[(x)], 0, value)
215
216 /*
217  * Determine I/O method based on whether or not we have more than one I/O
218  * resource.
219  */
220 #define INB(sc, x)                                                      \
221         ((sc)->ipmi_io_res[1] != NULL ? INB_MULTIPLE(sc, x) : INB_SINGLE(sc, x))
222 #define OUTB(sc, x, value)                                              \
223         ((sc)->ipmi_io_res[1] != NULL ? OUTB_MULTIPLE(sc, x, value) :   \
224             OUTB_SINGLE(sc, x, value))
225
226 #define MAX_TIMEOUT 6 * hz
227
228 int     ipmi_attach(device_t);
229 int     ipmi_detach(device_t);
230 void    ipmi_release_resources(device_t);
231
232 /* Manage requests. */
233 struct ipmi_request *ipmi_alloc_request(struct ipmi_device *, long, uint8_t,
234             uint8_t, size_t, size_t);
235 void    ipmi_complete_request(struct ipmi_softc *, struct ipmi_request *);
236 struct ipmi_request *ipmi_dequeue_request(struct ipmi_softc *);
237 void    ipmi_free_request(struct ipmi_request *);
238 int     ipmi_polled_enqueue_request(struct ipmi_softc *, struct ipmi_request *);
239 int     ipmi_submit_driver_request(struct ipmi_softc *, struct ipmi_request *,
240             int);
241
242 /* Identify BMC interface via SMBIOS. */
243 int     ipmi_smbios_identify(struct ipmi_get_info *);
244
245 /* Match BMC PCI device listed in SMBIOS. */
246 const char *ipmi_pci_match(uint16_t, uint16_t);
247
248 /* Interface attach routines. */
249 int     ipmi_kcs_attach(struct ipmi_softc *);
250 int     ipmi_kcs_probe_align(struct ipmi_softc *);
251 int     ipmi_smic_attach(struct ipmi_softc *);
252 int     ipmi_ssif_attach(struct ipmi_softc *, device_t, int);
253
254 #ifdef IPMB
255 int     ipmi_handle_attn(struct ipmi_softc *);
256 #endif
257
258 extern devclass_t ipmi_devclass;
259 extern int ipmi_attached;
260
261 #endif  /* !__IPMIVARS_H__ */