1de7b4b805
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. No functional change intended.
292 lines
8.0 KiB
C
292 lines
8.0 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 1999 Michael Smith
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <cam/scsi/scsi_all.h>
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#include <dev/mlx/mlxio.h>
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#include <dev/mlx/mlxreg.h>
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#include "mlxcontrol.h"
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/********************************************************************************
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* Iterate over all mlx devices, call (func) with each ones' path and (arg)
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*/
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void
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mlx_foreach(void (*func)(int unit, void *arg), void *arg)
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{
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int i, fd;
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/* limit total count for sanity */
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for (i = 0; i < 64; i++) {
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/* verify we can open it */
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if ((fd = open(ctrlrpath(i), 0)) >= 0)
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close(fd);
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/* if we can, do */
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if (fd >= 0) {
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func(i, arg);
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}
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}
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}
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/********************************************************************************
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* Open the controller (unit) and give the fd to (func) along with (arg)
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*/
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void
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mlx_perform(int unit, void (*func)(int fd, void *arg), void *arg)
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{
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int fd;
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if ((fd = open(ctrlrpath(unit), 0)) >= 0) {
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func(fd, arg);
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close(fd);
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}
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}
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/********************************************************************************
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* Iterate over all mlxd devices, call (func) with each ones' path and (arg)
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*/
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void
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mlxd_foreach_ctrlr(int unit, void *arg)
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{
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struct mlxd_foreach_action *ma = (struct mlxd_foreach_action *)arg;
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int i, fd, ctrlfd;
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/* Get the device */
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if ((ctrlfd = open(ctrlrpath(unit), 0)) < 0)
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return;
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for (i = -1; ;) {
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/* Get the unit number of the next child device */
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if (ioctl(ctrlfd, MLX_NEXT_CHILD, &i) < 0) {
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close(ctrlfd);
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return;
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}
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/* check that we can open this unit */
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if ((fd = open(drivepath(i), 0)) >= 0)
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close(fd);
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/* if we can, do */
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if (fd >= 0) {
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ma->func(i, ma->arg);
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}
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}
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}
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void
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mlxd_foreach(void (*func)(int unit, void *arg), void *arg)
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{
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struct mlxd_foreach_action ma;
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ma.func = func;
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ma.arg = arg;
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mlx_foreach(mlxd_foreach_ctrlr, &ma);
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}
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/********************************************************************************
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* Find the controller that manages the drive (unit), return controller number
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* and system drive number on that controller.
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*/
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static struct
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{
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int unit;
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int ctrlr;
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int sysdrive;
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} mlxd_find_ctrlr_param;
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static void
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mlxd_find_ctrlr_search(int unit, void *arg)
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{
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int i, fd;
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/* Get the device */
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if ((fd = open(ctrlrpath(unit), 0)) >= 0) {
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for (i = -1; ;) {
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/* Get the unit number of the next child device */
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if (ioctl(fd, MLX_NEXT_CHILD, &i) < 0)
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break;
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/* is this child the unit we want? */
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if (i == mlxd_find_ctrlr_param.unit) {
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mlxd_find_ctrlr_param.ctrlr = unit;
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if (ioctl(fd, MLX_GET_SYSDRIVE, &i) == 0)
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mlxd_find_ctrlr_param.sysdrive = i;
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}
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}
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close(fd);
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}
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}
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int
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mlxd_find_ctrlr(int unit, int *ctrlr, int *sysdrive)
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{
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mlxd_find_ctrlr_param.unit = unit;
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mlxd_find_ctrlr_param.ctrlr = -1;
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mlxd_find_ctrlr_param.sysdrive = -1;
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mlx_foreach(mlxd_find_ctrlr_search, NULL);
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if ((mlxd_find_ctrlr_param.ctrlr != -1) && (mlxd_find_ctrlr_param.sysdrive != -1)) {
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*ctrlr = mlxd_find_ctrlr_param.ctrlr;
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*sysdrive = mlxd_find_ctrlr_param.sysdrive;
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return(0);
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}
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return(1);
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}
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/********************************************************************************
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* Send a command to the controller on (fd)
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*/
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void
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mlx_command(int fd, void *arg)
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{
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struct mlx_usercommand *cmd = (struct mlx_usercommand *)arg;
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int error;
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error = ioctl(fd, MLX_COMMAND, cmd);
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if (error != 0)
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cmd->mu_error = error;
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}
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/********************************************************************************
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* Perform an ENQUIRY2 command and return information related to the controller
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* (unit)
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*/
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int
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mlx_enquiry(int unit, struct mlx_enquiry2 *enq)
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{
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struct mlx_usercommand cmd;
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/* build the command */
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cmd.mu_datasize = sizeof(*enq);
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cmd.mu_buf = enq;
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cmd.mu_bufptr = 8;
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cmd.mu_command[0] = MLX_CMD_ENQUIRY2;
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/* hand it off for processing */
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mlx_perform(unit, mlx_command, (void *)&cmd);
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return(cmd.mu_status != 0);
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}
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/********************************************************************************
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* Perform a READ CONFIGURATION command and return information related to the controller
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* (unit)
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*/
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int
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mlx_read_configuration(int unit, struct mlx_core_cfg *cfg)
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{
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struct mlx_usercommand cmd;
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/* build the command */
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cmd.mu_datasize = sizeof(*cfg);
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cmd.mu_buf = cfg;
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cmd.mu_bufptr = 8;
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cmd.mu_command[0] = MLX_CMD_READ_CONFIG;
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/* hand it off for processing */
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mlx_perform(unit, mlx_command, (void *)&cmd);
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return(cmd.mu_status != 0);
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}
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/********************************************************************************
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* Perform a SCSI INQUIRY command and return pointers to the relevant data.
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*/
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int
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mlx_scsi_inquiry(int unit, int channel, int target, char **vendor, char **device, char **revision)
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{
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struct mlx_usercommand cmd;
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static struct {
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struct mlx_dcdb dcdb;
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union {
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struct scsi_inquiry_data inq;
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u_int8_t pad[SHORT_INQUIRY_LENGTH];
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} d;
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} __attribute__ ((packed)) dcdb_cmd;
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struct scsi_inquiry *inq_cmd = (struct scsi_inquiry *)&dcdb_cmd.dcdb.dcdb_cdb[0];
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/* build the command */
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cmd.mu_datasize = sizeof(dcdb_cmd);
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cmd.mu_buf = &dcdb_cmd;
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cmd.mu_command[0] = MLX_CMD_DIRECT_CDB;
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/* build the DCDB */
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bzero(&dcdb_cmd, sizeof(dcdb_cmd));
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dcdb_cmd.dcdb.dcdb_channel = channel;
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dcdb_cmd.dcdb.dcdb_target = target;
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dcdb_cmd.dcdb.dcdb_flags = MLX_DCDB_DATA_IN | MLX_DCDB_TIMEOUT_10S;
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dcdb_cmd.dcdb.dcdb_datasize = SHORT_INQUIRY_LENGTH;
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dcdb_cmd.dcdb.dcdb_cdb_length = 6;
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dcdb_cmd.dcdb.dcdb_sense_length = SSD_FULL_SIZE;
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/* build the cdb */
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inq_cmd->opcode = INQUIRY;
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scsi_ulto2b(SHORT_INQUIRY_LENGTH, inq_cmd->length);
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/* hand it off for processing */
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mlx_perform(unit, mlx_command, &cmd);
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if (cmd.mu_status == 0) {
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*vendor = &dcdb_cmd.d.inq.vendor[0];
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*device = &dcdb_cmd.d.inq.product[0];
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*revision = &dcdb_cmd.d.inq.revision[0];
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}
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return(cmd.mu_status);
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}
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/********************************************************************************
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* Perform a GET DEVICE STATE command and return pointers to the relevant data.
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*/
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int
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mlx_get_device_state(int unit, int channel, int target, struct mlx_phys_drv *drv)
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{
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struct mlx_usercommand cmd;
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/* build the command */
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cmd.mu_datasize = sizeof(*drv);
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cmd.mu_buf = drv;
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cmd.mu_bufptr = 8;
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cmd.mu_command[0] = MLX_CMD_DEVICE_STATE;
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cmd.mu_command[2] = channel;
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cmd.mu_command[3] = target;
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/* hand it off for processing */
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mlx_perform(unit, mlx_command, (void *)&cmd);
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return(cmd.mu_status != 0);
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}
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