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sys/geom/geom_phys2disk.c
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| /*- | |||||
| * Copyright (c) 2017 Wheel Systems | |||||
| * All rights reserved. | |||||
| * | |||||
| * This software was developed by Pawel Jakub Dawidek and Mariusz Zaborski | |||||
| * under sponsorship from Wheel Systems. | |||||
| * | |||||
| * Redistribution and use in source and binary forms, with or without | |||||
| * modification, are permitted provided that the following conditions | |||||
| * are met: | |||||
| * 1. Redistributions of source code must retain the above copyright | |||||
| * notice, this list of conditions and the following disclaimer. | |||||
| * 2. Redistributions in binary form must reproduce the above copyright | |||||
| * notice, this list of conditions and the following disclaimer in the | |||||
| * documentation and/or other materials provided with the distribution. | |||||
| * | |||||
| * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND | |||||
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |||||
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |||||
| * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE | |||||
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |||||
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |||||
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |||||
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |||||
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |||||
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |||||
| * SUCH DAMAGE. | |||||
| */ | |||||
| #include <sys/cdefs.h> | |||||
| __FBSDID("$FreeBSD$"); | |||||
| #include <sys/ctype.h> | |||||
| #include <sys/param.h> | |||||
| #include <sys/kernel.h> | |||||
| #include <sys/systm.h> | |||||
| #include <sys/sysctl.h> | |||||
| #include <geom/geom_phys2disk.h> | |||||
| static char disk_phys2unit[1024]; | |||||
| SYSCTL_STRING(_kern, OID_AUTO, phys2unit, CTLFLAG_RDTUN, | |||||
| disk_phys2unit, 0, "Disk connection to unit mapping"); | |||||
| static int | |||||
| disk_unit(const char *phys) | |||||
| { | |||||
| int unit; | |||||
| char *ptr; | |||||
| ptr = strstr(disk_phys2unit, phys); | |||||
| if (ptr == NULL) | |||||
| return (-1); | |||||
| ptr += strlen(phys); | |||||
| if (ptr >= disk_phys2unit + sizeof(disk_phys2unit) - 1) { | |||||
| printf("%s: Invalid kern.phys2unit value.\n", __func__); | |||||
| return (-1); | |||||
| } | |||||
| if (*ptr < '0' || *ptr > '9') { | |||||
| printf("%s: Invalid kern.phys2unit value.\n", __func__); | |||||
| return (-1); | |||||
| } | |||||
| unit = 0; | |||||
| for (; ptr <= disk_phys2unit + sizeof(disk_phys2unit) - 1; ptr++) { | |||||
| if (*ptr < '0' || *ptr > '9') | |||||
| break; | |||||
| unit *= 10; | |||||
| unit += *ptr - '0'; | |||||
| } | |||||
| return (unit); | |||||
| } | |||||
| int | |||||
| disk_unit_cam(u_int bus, u_int target, u_int lun, off_t mediasize) | |||||
| { | |||||
| char phys[16]; | |||||
| (void)snprintf(phys, sizeof(phys), "b%ut%ul%u=", bus, target, lun); | |||||
| return (disk_unit(phys)); | |||||
| } | |||||
| int | |||||
| disk_unit_mfi(uint8_t enclindex, uint8_t slot) | |||||
| { | |||||
| char phys[32]; | |||||
| (void)snprintf(phys, sizeof(phys), "E%u:S%u=", enclindex, slot); | |||||
| return (disk_unit(phys)); | |||||
| } | |||||