1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 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 bool ir_ipmb; 58 uint8_t ir_ipmb_addr; 59 uint8_t ir_ipmb_command; 60 }; 61 62 #define IPMI_IF_KCS_NRES 2 63 #define IPMI_IF_SMIC_NRES 3 64 #define IPMI_IF_BT_NRES 3 65 66 #define MAX_RES 3 67 #define KCS_DATA 0 68 #define KCS_CTL_STS 1 69 #define SMIC_DATA 0 70 #define SMIC_CTL_STS 1 71 #define SMIC_FLAGS 2 72 73 struct ipmi_softc; 74 75 /* Per file descriptor data. */ 76 struct ipmi_device { 77 TAILQ_ENTRY(ipmi_device) ipmi_link; 78 TAILQ_HEAD(,ipmi_request) ipmi_completed_requests; 79 struct selinfo ipmi_select; 80 struct ipmi_softc *ipmi_softc; 81 int ipmi_closing; 82 int ipmi_requests; 83 u_char ipmi_address; /* IPMB address. */ 84 u_char ipmi_lun; 85 }; 86 87 struct ipmi_bt { 88 uint8_t seq; 89 }; 90 91 struct ipmi_kcs { 92 }; 93 94 struct ipmi_smic { 95 }; 96 97 struct ipmi_ssif { 98 device_t smbus; 99 int smbus_address; 100 }; 101 102 struct ipmi_softc { 103 device_t ipmi_dev; 104 union { 105 struct ipmi_bt bt; 106 struct ipmi_kcs kcs; 107 struct ipmi_smic smic; 108 struct ipmi_ssif ssif; 109 } _iface; 110 int ipmi_io_rid; 111 int ipmi_io_type; 112 struct mtx ipmi_io_lock; 113 struct resource *ipmi_io_res[MAX_RES]; 114 int ipmi_io_spacing; 115 int ipmi_irq_rid; 116 struct resource *ipmi_irq_res; 117 void *ipmi_irq; 118 int ipmi_detaching; 119 int ipmi_opened; 120 uint8_t ipmi_dev_support; /* IPMI_ADS_* */ 121 struct cdev *ipmi_cdev; 122 TAILQ_HEAD(,ipmi_request) ipmi_pending_requests; 123 TAILQ_HEAD(,ipmi_request) ipmi_pending_requests_highpri; 124 int ipmi_driver_requests_polled; 125 eventhandler_tag ipmi_power_cycle_tag; 126 eventhandler_tag ipmi_watchdog_tag; 127 eventhandler_tag ipmi_shutdown_tag; 128 int ipmi_watchdog_active; 129 int ipmi_watchdog_actions; 130 int ipmi_watchdog_pretimeout; 131 struct intr_config_hook ipmi_ich; 132 struct mtx ipmi_requests_lock; 133 struct cv ipmi_request_added; 134 struct proc *ipmi_kthread; 135 driver_intr_t *ipmi_intr; 136 int (*ipmi_startup)(struct ipmi_softc *); 137 int (*ipmi_enqueue_request)(struct ipmi_softc *, struct ipmi_request *); 138 int (*ipmi_driver_request)(struct ipmi_softc *, struct ipmi_request *, int); 139 }; 140 141 #define ipmi_ssif_smbus_address _iface.ssif.smbus_address 142 #define ipmi_ssif_smbus _iface.ssif.smbus 143 #define ipmi_bt_seq _iface.bt.seq 144 145 #define KCS_MODE 0x01 146 #define SMIC_MODE 0x02 147 #define BT_MODE 0x03 148 #define SSIF_MODE 0x04 149 150 /* KCS status flags */ 151 #define KCS_STATUS_OBF 0x01 /* Data Out ready from BMC */ 152 #define KCS_STATUS_IBF 0x02 /* Data In from System */ 153 #define KCS_STATUS_SMS_ATN 0x04 /* Ready in RX queue */ 154 #define KCS_STATUS_C_D 0x08 /* Command/Data register write*/ 155 #define KCS_STATUS_OEM1 0x10 156 #define KCS_STATUS_OEM2 0x20 157 #define KCS_STATUS_S0 0x40 158 #define KCS_STATUS_S1 0x80 159 #define KCS_STATUS_STATE(x) ((x)>>6) 160 #define KCS_STATUS_STATE_IDLE 0x0 161 #define KCS_STATUS_STATE_READ 0x1 162 #define KCS_STATUS_STATE_WRITE 0x2 163 #define KCS_STATUS_STATE_ERROR 0x3 164 #define KCS_IFACE_STATUS_OK 0x00 165 #define KCS_IFACE_STATUS_ABORT 0x01 166 #define KCS_IFACE_STATUS_ILLEGAL 0x02 167 #define KCS_IFACE_STATUS_LENGTH_ERR 0x06 168 #define KCS_IFACE_STATUS_UNKNOWN_ERR 0xff 169 170 /* KCS control codes */ 171 #define KCS_CONTROL_GET_STATUS_ABORT 0x60 172 #define KCS_CONTROL_WRITE_START 0x61 173 #define KCS_CONTROL_WRITE_END 0x62 174 #define KCS_DATA_IN_READ 0x68 175 176 /* SMIC status flags */ 177 #define SMIC_STATUS_BUSY 0x01 /* System set and BMC clears it */ 178 #define SMIC_STATUS_SMS_ATN 0x04 /* BMC has a message */ 179 #define SMIC_STATUS_EVT_ATN 0x08 /* Event has been RX */ 180 #define SMIC_STATUS_SMI 0x10 /* asserted SMI */ 181 #define SMIC_STATUS_TX_RDY 0x40 /* Ready to accept WRITE */ 182 #define SMIC_STATUS_RX_RDY 0x80 /* Ready to read */ 183 #define SMIC_STATUS_RESERVED 0x22 184 185 /* SMIC control codes */ 186 #define SMIC_CC_SMS_GET_STATUS 0x40 187 #define SMIC_CC_SMS_WR_START 0x41 188 #define SMIC_CC_SMS_WR_NEXT 0x42 189 #define SMIC_CC_SMS_WR_END 0x43 190 #define SMIC_CC_SMS_RD_START 0x44 191 #define SMIC_CC_SMS_RD_NEXT 0x45 192 #define SMIC_CC_SMS_RD_END 0x46 193 194 /* SMIC status codes */ 195 #define SMIC_SC_SMS_RDY 0xc0 196 #define SMIC_SC_SMS_WR_START 0xc1 197 #define SMIC_SC_SMS_WR_NEXT 0xc2 198 #define SMIC_SC_SMS_WR_END 0xc3 199 #define SMIC_SC_SMS_RD_START 0xc4 200 #define SMIC_SC_SMS_RD_NEXT 0xc5 201 #define SMIC_SC_SMS_RD_END 0xc6 202 203 #define IPMI_ADDR(netfn, lun) ((netfn) << 2 | (lun)) 204 #define IPMI_REPLY_ADDR(addr) ((addr) + 0x4) 205 206 #define IPMI_LOCK(sc) mtx_lock(&(sc)->ipmi_requests_lock) 207 #define IPMI_UNLOCK(sc) mtx_unlock(&(sc)->ipmi_requests_lock) 208 #define IPMI_LOCK_ASSERT(sc) mtx_assert(&(sc)->ipmi_requests_lock, MA_OWNED) 209 210 #define IPMI_IO_LOCK(sc) mtx_lock(&(sc)->ipmi_io_lock) 211 #define IPMI_IO_UNLOCK(sc) mtx_unlock(&(sc)->ipmi_io_lock) 212 #define IPMI_IO_LOCK_ASSERT(sc) mtx_assert(&(sc)->ipmi_io_lock, MA_OWNED) 213 214 /* I/O to a single I/O resource. */ 215 #define INB_SINGLE(sc, x) \ 216 bus_read_1((sc)->ipmi_io_res[0], (sc)->ipmi_io_spacing * (x)) 217 #define OUTB_SINGLE(sc, x, value) \ 218 bus_write_1((sc)->ipmi_io_res[0], (sc)->ipmi_io_spacing * (x), value) 219 220 /* I/O with each register in its in I/O resource. */ 221 #define INB_MULTIPLE(sc, x) \ 222 bus_read_1((sc)->ipmi_io_res[(x)], 0) 223 #define OUTB_MULTIPLE(sc, x, value) \ 224 bus_write_1((sc)->ipmi_io_res[(x)], 0, value) 225 226 /* 227 * Determine I/O method based on whether or not we have more than one I/O 228 * resource. 229 */ 230 #define INB(sc, x) \ 231 ((sc)->ipmi_io_res[1] != NULL ? INB_MULTIPLE(sc, x) : INB_SINGLE(sc, x)) 232 #define OUTB(sc, x, value) \ 233 ((sc)->ipmi_io_res[1] != NULL ? OUTB_MULTIPLE(sc, x, value) : \ 234 OUTB_SINGLE(sc, x, value)) 235 236 #define MAX_TIMEOUT 6 * hz 237 238 int ipmi_attach(device_t); 239 int ipmi_detach(device_t); 240 void ipmi_release_resources(device_t); 241 242 /* Manage requests. */ 243 void ipmi_init_request(struct ipmi_request *, struct ipmi_device *, long, 244 uint8_t, uint8_t, size_t, size_t); 245 struct ipmi_request *ipmi_alloc_request(struct ipmi_device *, long, uint8_t, 246 uint8_t, size_t, size_t); 247 void ipmi_complete_request(struct ipmi_softc *, struct ipmi_request *); 248 struct ipmi_request *ipmi_dequeue_request(struct ipmi_softc *); 249 void ipmi_free_request(struct ipmi_request *); 250 int ipmi_polled_enqueue_request(struct ipmi_softc *, struct ipmi_request *); 251 int ipmi_polled_enqueue_request_highpri(struct ipmi_softc *, struct ipmi_request *); 252 int ipmi_submit_driver_request(struct ipmi_softc *, struct ipmi_request *, 253 int); 254 255 /* Identify BMC interface via SMBIOS. */ 256 int ipmi_smbios_identify(struct ipmi_get_info *); 257 258 /* Match BMC PCI device listed in SMBIOS. */ 259 const char *ipmi_pci_match(uint16_t, uint16_t); 260 261 /* Interface attach routines. */ 262 int ipmi_kcs_attach(struct ipmi_softc *); 263 int ipmi_kcs_probe_align(struct ipmi_softc *); 264 int ipmi_smic_attach(struct ipmi_softc *); 265 int ipmi_bt_attach(struct ipmi_softc *); 266 int ipmi_ssif_attach(struct ipmi_softc *, device_t, int); 267 268 extern int ipmi_attached; 269 270 #endif /* !__IPMIVARS_H__ */ 271