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 1.3 2008/09/12 17:40:17 sepotvin Exp $
34 #include <cam/scsi/scsi_all.h>
36 #include <dev/raid/mlx/mlxio.h>
37 #include <dev/raid/mlx/mlxreg.h>
39 #include "mlxcontrol.h"
41 /********************************************************************************
42 * Iterate over all mlx devices, call (func) with each ones' path and (arg)
45 mlx_foreach(void (*func)(int unit, void *arg), void *arg)
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)
61 /********************************************************************************
62 * Open the controller (unit) and give the fd to (func) along with (arg)
65 mlx_perform(int unit, void (*func)(int fd, void *arg), void *arg)
69 if ((fd = open(ctrlrpath(unit), 0)) >= 0) {
75 /********************************************************************************
76 * Iterate over all mlxd devices, call (func) with each ones' path and (arg)
79 mlxd_foreach_ctrlr(int unit, void *arg)
81 struct mlxd_foreach_action *ma = (struct mlxd_foreach_action *)arg;
85 if ((ctrlfd = open(ctrlrpath(unit), 0)) < 0)
89 /* Get the unit number of the next child device */
90 if (ioctl(ctrlfd, MLX_NEXT_CHILD, &i) < 0) {
95 /* check that we can open this unit */
96 if ((fd = open(drivepath(i), 0)) >= 0)
100 ma->func(i, ma->arg);
106 mlxd_foreach(void (*func)(int unit, void *arg), void *arg)
108 struct mlxd_foreach_action ma;
112 mlx_foreach(mlxd_foreach_ctrlr, &ma);
115 /********************************************************************************
116 * Find the controller that manages the drive (unit), return controller number
117 * and system drive number on that controller.
124 } mlxd_find_ctrlr_param;
127 mlxd_find_ctrlr_search(int unit, void *arg __unused)
132 if ((fd = open(ctrlrpath(unit), 0)) >= 0) {
134 /* Get the unit number of the next child device */
135 if (ioctl(fd, MLX_NEXT_CHILD, &i) < 0)
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;
150 mlxd_find_ctrlr(int unit, int *ctrlr, int *sysdrive)
152 mlxd_find_ctrlr_param.unit = unit;
153 mlxd_find_ctrlr_param.ctrlr = -1;
154 mlxd_find_ctrlr_param.sysdrive = -1;
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;
166 /********************************************************************************
167 * Send a command to the controller on (fd)
171 mlx_command(int fd, void *arg)
173 struct mlx_usercommand *cmd = (struct mlx_usercommand *)arg;
176 error = ioctl(fd, MLX_COMMAND, cmd);
178 cmd->mu_error = error;
181 /********************************************************************************
182 * Perform an ENQUIRY2 command and return information related to the controller
186 mlx_enquiry(int unit, struct mlx_enquiry2 *enq)
188 struct mlx_usercommand cmd;
190 /* build the command */
191 cmd.mu_datasize = sizeof(*enq);
194 cmd.mu_command[0] = MLX_CMD_ENQUIRY2;
196 /* hand it off for processing */
197 mlx_perform(unit, mlx_command, &cmd);
199 return(cmd.mu_status != 0);
203 /********************************************************************************
204 * Perform a READ CONFIGURATION command and return information related to the controller
208 mlx_read_configuration(int unit, struct mlx_core_cfg *cfg)
210 struct mlx_usercommand cmd;
212 /* build the command */
213 cmd.mu_datasize = sizeof(*cfg);
216 cmd.mu_command[0] = MLX_CMD_READ_CONFIG;
218 /* hand it off for processing */
219 mlx_perform(unit, mlx_command, &cmd);
221 return(cmd.mu_status != 0);
224 /********************************************************************************
225 * Perform a SCSI INQUIRY command and return pointers to the relevant data.
228 mlx_scsi_inquiry(int unit, int channel, int target, char **vendor, char **device, char **revision)
230 struct mlx_usercommand cmd;
232 struct mlx_dcdb dcdb;
234 struct scsi_inquiry_data inq;
235 u_int8_t pad[SHORT_INQUIRY_LENGTH];
237 } __attribute__ ((packed)) dcdb_cmd;
238 struct scsi_inquiry *inq_cmd = (struct scsi_inquiry *)&dcdb_cmd.dcdb.dcdb_cdb[0];
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;
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;
255 inq_cmd->opcode = INQUIRY;
256 inq_cmd->length = SHORT_INQUIRY_LENGTH;
258 /* hand it off for processing */
259 mlx_perform(unit, mlx_command, &cmd);
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];
266 return(cmd.mu_status);
269 /********************************************************************************
270 * Perform a GET DEVICE STATE command and return pointers to the relevant data.
273 mlx_get_device_state(int unit, int channel, int target, struct mlx_phys_drv *drv)
275 struct mlx_usercommand cmd;
277 /* build the command */
278 cmd.mu_datasize = sizeof(*drv);
281 cmd.mu_command[0] = MLX_CMD_DEVICE_STATE;
282 cmd.mu_command[2] = channel;
283 cmd.mu_command[3] = target;
285 /* hand it off for processing */
286 mlx_perform(unit, mlx_command, &cmd);
288 return(cmd.mu_status != 0);