mlxcontrol(8): Sync with FreeBSD.
[dragonfly.git] / usr.sbin / mlxcontrol / interface.c
CommitLineData
984263bc
MD
1/*-
2 * Copyright (c) 1999 Michael Smith
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
c6aff4f7 26 * $FreeBSD: src/usr.sbin/mlxcontrol/interface.c,v 1.3 2008/09/12 17:40:17 sepotvin Exp $
984263bc
MD
27 */
28
29#include <fcntl.h>
30#include <stdio.h>
31#include <stdlib.h>
32#include <unistd.h>
33#include <string.h>
34#include <cam/scsi/scsi_all.h>
35
38a690d7
MD
36#include <dev/raid/mlx/mlxio.h>
37#include <dev/raid/mlx/mlxreg.h>
984263bc
MD
38
39#include "mlxcontrol.h"
40
41/********************************************************************************
42 * Iterate over all mlx devices, call (func) with each ones' path and (arg)
43 */
44void
45mlx_foreach(void (*func)(int unit, void *arg), void *arg)
46{
47 int i, fd;
48
49 /* limit total count for sanity */
50 for (i = 0; i < 64; i++) {
51 /* verify we can open it */
52 if ((fd = open(ctrlrpath(i), 0)) >= 0)
53 close(fd);
54 /* if we can, do */
55 if (fd >= 0) {
56 func(i, arg);
57 }
58 }
59}
60
61/********************************************************************************
62 * Open the controller (unit) and give the fd to (func) along with (arg)
63 */
64void
65mlx_perform(int unit, void (*func)(int fd, void *arg), void *arg)
66{
67 int fd;
68
69 if ((fd = open(ctrlrpath(unit), 0)) >= 0) {
70 func(fd, arg);
71 close(fd);
72 }
73}
74
75/********************************************************************************
76 * Iterate over all mlxd devices, call (func) with each ones' path and (arg)
77 */
78void
79mlxd_foreach_ctrlr(int unit, void *arg)
80{
81 struct mlxd_foreach_action *ma = (struct mlxd_foreach_action *)arg;
c6aff4f7 82 int i, fd, ctrlfd;
984263bc
MD
83
84 /* Get the device */
c6aff4f7 85 if ((ctrlfd = open(ctrlrpath(unit), 0)) < 0)
984263bc
MD
86 return;
87
88 for (i = -1; ;) {
89 /* Get the unit number of the next child device */
c6aff4f7
SW
90 if (ioctl(ctrlfd, MLX_NEXT_CHILD, &i) < 0) {
91 close(ctrlfd);
984263bc 92 return;
c6aff4f7 93 }
984263bc
MD
94
95 /* check that we can open this unit */
96 if ((fd = open(drivepath(i), 0)) >= 0)
97 close(fd);
98 /* if we can, do */
99 if (fd >= 0) {
100 ma->func(i, ma->arg);
101 }
102 }
103}
104
105void
106mlxd_foreach(void (*func)(int unit, void *arg), void *arg)
107{
108 struct mlxd_foreach_action ma;
109
110 ma.func = func;
111 ma.arg = arg;
112 mlx_foreach(mlxd_foreach_ctrlr, &ma);
113}
114
115/********************************************************************************
116 * Find the controller that manages the drive (unit), return controller number
117 * and system drive number on that controller.
118 */
119static struct
120{
121 int unit;
122 int ctrlr;
123 int sysdrive;
124} mlxd_find_ctrlr_param;
125
126static void
c6aff4f7 127mlxd_find_ctrlr_search(int unit, void *arg __unused)
984263bc
MD
128{
129 int i, fd;
130
131 /* Get the device */
132 if ((fd = open(ctrlrpath(unit), 0)) >= 0) {
133 for (i = -1; ;) {
134 /* Get the unit number of the next child device */
135 if (ioctl(fd, MLX_NEXT_CHILD, &i) < 0)
136 break;
137
138 /* is this child the unit we want? */
139 if (i == mlxd_find_ctrlr_param.unit) {
140 mlxd_find_ctrlr_param.ctrlr = unit;
141 if (ioctl(fd, MLX_GET_SYSDRIVE, &i) == 0)
142 mlxd_find_ctrlr_param.sysdrive = i;
143 }
144 }
145 close(fd);
146 }
147}
148
149int
150mlxd_find_ctrlr(int unit, int *ctrlr, int *sysdrive)
151{
152 mlxd_find_ctrlr_param.unit = unit;
153 mlxd_find_ctrlr_param.ctrlr = -1;
154 mlxd_find_ctrlr_param.sysdrive = -1;
155
156 mlx_foreach(mlxd_find_ctrlr_search, NULL);
157 if ((mlxd_find_ctrlr_param.ctrlr != -1) && (mlxd_find_ctrlr_param.sysdrive != -1)) {
158 *ctrlr = mlxd_find_ctrlr_param.ctrlr;
159 *sysdrive = mlxd_find_ctrlr_param.sysdrive;
160 return(0);
161 }
162 return(1);
163}
164
165
166/********************************************************************************
167 * Send a command to the controller on (fd)
168 */
169
170void
171mlx_command(int fd, void *arg)
172{
173 struct mlx_usercommand *cmd = (struct mlx_usercommand *)arg;
174 int error;
175
176 error = ioctl(fd, MLX_COMMAND, cmd);
177 if (error != 0)
178 cmd->mu_error = error;
179}
180
181/********************************************************************************
182 * Perform an ENQUIRY2 command and return information related to the controller
183 * (unit)
184 */
185int
186mlx_enquiry(int unit, struct mlx_enquiry2 *enq)
187{
188 struct mlx_usercommand cmd;
189
190 /* build the command */
191 cmd.mu_datasize = sizeof(*enq);
192 cmd.mu_buf = enq;
193 cmd.mu_bufptr = 8;
194 cmd.mu_command[0] = MLX_CMD_ENQUIRY2;
195
196 /* hand it off for processing */
197 mlx_perform(unit, mlx_command, (void *)&cmd);
198
199 return(cmd.mu_status != 0);
200}
201
202
203/********************************************************************************
204 * Perform a READ CONFIGURATION command and return information related to the controller
205 * (unit)
206 */
207int
208mlx_read_configuration(int unit, struct mlx_core_cfg *cfg)
209{
210 struct mlx_usercommand cmd;
211
212 /* build the command */
213 cmd.mu_datasize = sizeof(*cfg);
214 cmd.mu_buf = cfg;
215 cmd.mu_bufptr = 8;
216 cmd.mu_command[0] = MLX_CMD_READ_CONFIG;
217
218 /* hand it off for processing */
219 mlx_perform(unit, mlx_command, (void *)&cmd);
220
221 return(cmd.mu_status != 0);
222}
223
224/********************************************************************************
225 * Perform a SCSI INQUIRY command and return pointers to the relevant data.
226 */
227int
228mlx_scsi_inquiry(int unit, int channel, int target, char **vendor, char **device, char **revision)
229{
230 struct mlx_usercommand cmd;
231 static struct {
232 struct mlx_dcdb dcdb;
233 union {
234 struct scsi_inquiry_data inq;
235 u_int8_t pad[SHORT_INQUIRY_LENGTH];
236 } d;
237 } __attribute__ ((packed)) dcdb_cmd;
238 struct scsi_inquiry *inq_cmd = (struct scsi_inquiry *)&dcdb_cmd.dcdb.dcdb_cdb[0];
239
240 /* build the command */
241 cmd.mu_datasize = sizeof(dcdb_cmd);
242 cmd.mu_buf = &dcdb_cmd;
243 cmd.mu_command[0] = MLX_CMD_DIRECT_CDB;
244
245 /* build the DCDB */
246 bzero(&dcdb_cmd, sizeof(dcdb_cmd));
247 dcdb_cmd.dcdb.dcdb_channel = channel;
248 dcdb_cmd.dcdb.dcdb_target = target;
249 dcdb_cmd.dcdb.dcdb_flags = MLX_DCDB_DATA_IN | MLX_DCDB_TIMEOUT_10S;
250 dcdb_cmd.dcdb.dcdb_datasize = SHORT_INQUIRY_LENGTH;
251 dcdb_cmd.dcdb.dcdb_cdb_length = 6;
252 dcdb_cmd.dcdb.dcdb_sense_length = SSD_FULL_SIZE;
253
254 /* build the cdb */
255 inq_cmd->opcode = INQUIRY;
256 inq_cmd->length = SHORT_INQUIRY_LENGTH;
257
258 /* hand it off for processing */
259 mlx_perform(unit, mlx_command, &cmd);
260
261 if (cmd.mu_status == 0) {
262 *vendor = &dcdb_cmd.d.inq.vendor[0];
263 *device = &dcdb_cmd.d.inq.product[0];
264 *revision = &dcdb_cmd.d.inq.revision[0];
265 }
266 return(cmd.mu_status);
267}
268
269/********************************************************************************
270 * Perform a GET DEVICE STATE command and return pointers to the relevant data.
271 */
272int
273mlx_get_device_state(int unit, int channel, int target, struct mlx_phys_drv *drv)
274{
275 struct mlx_usercommand cmd;
276
277 /* build the command */
278 cmd.mu_datasize = sizeof(*drv);
279 cmd.mu_buf = drv;
280 cmd.mu_bufptr = 8;
281 cmd.mu_command[0] = MLX_CMD_DEVICE_STATE;
282 cmd.mu_command[2] = channel;
283 cmd.mu_command[3] = target;
284
285 /* hand it off for processing */
286 mlx_perform(unit, mlx_command, (void *)&cmd);
287
288 return(cmd.mu_status != 0);
289}