2 * Copyright (c) 1999 Michael Smith
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
26 * $FreeBSD: src/usr.sbin/mlxcontrol/interface.c,v 1.2.2.1 2000/04/24 19:44:46 msmith Exp $
27 * $DragonFly: src/usr.sbin/mlxcontrol/interface.c,v 1.3 2003/08/08 04:18:46 dillon Exp $
35 #include <cam/scsi/scsi_all.h>
37 #include <dev/raid/mlx/mlxio.h>
38 #include <dev/raid/mlx/mlxreg.h>
40 #include "mlxcontrol.h"
42 /********************************************************************************
43 * Iterate over all mlx devices, call (func) with each ones' path and (arg)
46 mlx_foreach(void (*func)(int unit, void *arg), void *arg)
50 /* limit total count for sanity */
51 for (i = 0; i < 64; i++) {
52 /* verify we can open it */
53 if ((fd = open(ctrlrpath(i), 0)) >= 0)
62 /********************************************************************************
63 * Open the controller (unit) and give the fd to (func) along with (arg)
66 mlx_perform(int unit, void (*func)(int fd, void *arg), void *arg)
70 if ((fd = open(ctrlrpath(unit), 0)) >= 0) {
76 /********************************************************************************
77 * Iterate over all mlxd devices, call (func) with each ones' path and (arg)
80 mlxd_foreach_ctrlr(int unit, void *arg)
82 struct mlxd_foreach_action *ma = (struct mlxd_foreach_action *)arg;
86 if ((fd = open(ctrlrpath(unit), 0)) < 0)
90 /* Get the unit number of the next child device */
91 if (ioctl(fd, MLX_NEXT_CHILD, &i) < 0)
94 /* check that we can open this unit */
95 if ((fd = open(drivepath(i), 0)) >= 0)
105 mlxd_foreach(void (*func)(int unit, void *arg), void *arg)
107 struct mlxd_foreach_action ma;
111 mlx_foreach(mlxd_foreach_ctrlr, &ma);
114 /********************************************************************************
115 * Find the controller that manages the drive (unit), return controller number
116 * and system drive number on that controller.
123 } mlxd_find_ctrlr_param;
126 mlxd_find_ctrlr_search(int unit, void *arg)
131 if ((fd = open(ctrlrpath(unit), 0)) >= 0) {
133 /* Get the unit number of the next child device */
134 if (ioctl(fd, MLX_NEXT_CHILD, &i) < 0)
137 /* is this child the unit we want? */
138 if (i == mlxd_find_ctrlr_param.unit) {
139 mlxd_find_ctrlr_param.ctrlr = unit;
140 if (ioctl(fd, MLX_GET_SYSDRIVE, &i) == 0)
141 mlxd_find_ctrlr_param.sysdrive = i;
149 mlxd_find_ctrlr(int unit, int *ctrlr, int *sysdrive)
151 mlxd_find_ctrlr_param.unit = unit;
152 mlxd_find_ctrlr_param.ctrlr = -1;
153 mlxd_find_ctrlr_param.sysdrive = -1;
155 mlx_foreach(mlxd_find_ctrlr_search, NULL);
156 if ((mlxd_find_ctrlr_param.ctrlr != -1) && (mlxd_find_ctrlr_param.sysdrive != -1)) {
157 *ctrlr = mlxd_find_ctrlr_param.ctrlr;
158 *sysdrive = mlxd_find_ctrlr_param.sysdrive;
165 /********************************************************************************
166 * Send a command to the controller on (fd)
170 mlx_command(int fd, void *arg)
172 struct mlx_usercommand *cmd = (struct mlx_usercommand *)arg;
175 error = ioctl(fd, MLX_COMMAND, cmd);
177 cmd->mu_error = error;
180 /********************************************************************************
181 * Perform an ENQUIRY2 command and return information related to the controller
185 mlx_enquiry(int unit, struct mlx_enquiry2 *enq)
187 struct mlx_usercommand cmd;
189 /* build the command */
190 cmd.mu_datasize = sizeof(*enq);
193 cmd.mu_command[0] = MLX_CMD_ENQUIRY2;
195 /* hand it off for processing */
196 mlx_perform(unit, mlx_command, (void *)&cmd);
198 return(cmd.mu_status != 0);
202 /********************************************************************************
203 * Perform a READ CONFIGURATION command and return information related to the controller
207 mlx_read_configuration(int unit, struct mlx_core_cfg *cfg)
209 struct mlx_usercommand cmd;
211 /* build the command */
212 cmd.mu_datasize = sizeof(*cfg);
215 cmd.mu_command[0] = MLX_CMD_READ_CONFIG;
217 /* hand it off for processing */
218 mlx_perform(unit, mlx_command, (void *)&cmd);
220 return(cmd.mu_status != 0);
223 /********************************************************************************
224 * Perform a SCSI INQUIRY command and return pointers to the relevant data.
227 mlx_scsi_inquiry(int unit, int channel, int target, char **vendor, char **device, char **revision)
229 struct mlx_usercommand cmd;
231 struct mlx_dcdb dcdb;
233 struct scsi_inquiry_data inq;
234 u_int8_t pad[SHORT_INQUIRY_LENGTH];
236 } __attribute__ ((packed)) dcdb_cmd;
237 struct scsi_inquiry *inq_cmd = (struct scsi_inquiry *)&dcdb_cmd.dcdb.dcdb_cdb[0];
239 /* build the command */
240 cmd.mu_datasize = sizeof(dcdb_cmd);
241 cmd.mu_buf = &dcdb_cmd;
242 cmd.mu_command[0] = MLX_CMD_DIRECT_CDB;
245 bzero(&dcdb_cmd, sizeof(dcdb_cmd));
246 dcdb_cmd.dcdb.dcdb_channel = channel;
247 dcdb_cmd.dcdb.dcdb_target = target;
248 dcdb_cmd.dcdb.dcdb_flags = MLX_DCDB_DATA_IN | MLX_DCDB_TIMEOUT_10S;
249 dcdb_cmd.dcdb.dcdb_datasize = SHORT_INQUIRY_LENGTH;
250 dcdb_cmd.dcdb.dcdb_cdb_length = 6;
251 dcdb_cmd.dcdb.dcdb_sense_length = SSD_FULL_SIZE;
254 inq_cmd->opcode = INQUIRY;
255 inq_cmd->length = SHORT_INQUIRY_LENGTH;
257 /* hand it off for processing */
258 mlx_perform(unit, mlx_command, &cmd);
260 if (cmd.mu_status == 0) {
261 *vendor = &dcdb_cmd.d.inq.vendor[0];
262 *device = &dcdb_cmd.d.inq.product[0];
263 *revision = &dcdb_cmd.d.inq.revision[0];
265 return(cmd.mu_status);
268 /********************************************************************************
269 * Perform a GET DEVICE STATE command and return pointers to the relevant data.
272 mlx_get_device_state(int unit, int channel, int target, struct mlx_phys_drv *drv)
274 struct mlx_usercommand cmd;
276 /* build the command */
277 cmd.mu_datasize = sizeof(*drv);
280 cmd.mu_command[0] = MLX_CMD_DEVICE_STATE;
281 cmd.mu_command[2] = channel;
282 cmd.mu_command[3] = target;
284 /* hand it off for processing */
285 mlx_perform(unit, mlx_command, (void *)&cmd);
287 return(cmd.mu_status != 0);