499 lines
13 KiB
C
499 lines
13 KiB
C
/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (c) 2008, 2009 Yahoo!, Inc.
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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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* 3. The names of the authors may not be used to endorse or promote
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* products derived from this software without specific prior written
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* permission.
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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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#include <sys/types.h>
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#include <sys/errno.h>
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#include <err.h>
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#include <fcntl.h>
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#include <libutil.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "mfiutil.h"
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MFI_TABLE(top, volume);
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const char *
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mfi_ldstate(enum mfi_ld_state state)
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{
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static char buf[16];
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switch (state) {
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case MFI_LD_STATE_OFFLINE:
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return ("OFFLINE");
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case MFI_LD_STATE_PARTIALLY_DEGRADED:
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return ("PARTIALLY DEGRADED");
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case MFI_LD_STATE_DEGRADED:
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return ("DEGRADED");
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case MFI_LD_STATE_OPTIMAL:
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return ("OPTIMAL");
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default:
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sprintf(buf, "LSTATE 0x%02x", state);
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return (buf);
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}
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}
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void
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mbox_store_ldref(uint8_t *mbox, union mfi_ld_ref *ref)
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{
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mbox[0] = ref->v.target_id;
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mbox[1] = ref->v.reserved;
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mbox[2] = ref->v.seq & 0xff;
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mbox[3] = ref->v.seq >> 8;
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}
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int
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mfi_ld_get_list(int fd, struct mfi_ld_list *list, uint8_t *statusp)
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{
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return (mfi_dcmd_command(fd, MFI_DCMD_LD_GET_LIST, list,
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sizeof(struct mfi_ld_list), NULL, 0, statusp));
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}
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int
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mfi_ld_get_info(int fd, uint8_t target_id, struct mfi_ld_info *info,
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uint8_t *statusp)
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{
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uint8_t mbox[1];
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mbox[0] = target_id;
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return (mfi_dcmd_command(fd, MFI_DCMD_LD_GET_INFO, info,
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sizeof(struct mfi_ld_info), mbox, 1, statusp));
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}
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static int
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mfi_ld_get_props(int fd, uint8_t target_id, struct mfi_ld_props *props)
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{
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uint8_t mbox[1];
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mbox[0] = target_id;
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return (mfi_dcmd_command(fd, MFI_DCMD_LD_GET_PROP, props,
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sizeof(struct mfi_ld_props), mbox, 1, NULL));
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}
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static int
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mfi_ld_set_props(int fd, struct mfi_ld_props *props)
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{
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uint8_t mbox[4];
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mbox_store_ldref(mbox, &props->ld);
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return (mfi_dcmd_command(fd, MFI_DCMD_LD_SET_PROP, props,
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sizeof(struct mfi_ld_props), mbox, 4, NULL));
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}
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static int
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update_cache_policy(int fd, struct mfi_ld_props *old, struct mfi_ld_props *new)
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{
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int error;
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uint8_t changes, policy;
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if (old->default_cache_policy == new->default_cache_policy &&
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old->disk_cache_policy == new->disk_cache_policy)
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return (0);
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policy = new->default_cache_policy;
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changes = policy ^ old->default_cache_policy;
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if (changes & MR_LD_CACHE_ALLOW_WRITE_CACHE)
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printf("%s caching of I/O writes\n",
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policy & MR_LD_CACHE_ALLOW_WRITE_CACHE ? "Enabling" :
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"Disabling");
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if (changes & MR_LD_CACHE_ALLOW_READ_CACHE)
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printf("%s caching of I/O reads\n",
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policy & MR_LD_CACHE_ALLOW_READ_CACHE ? "Enabling" :
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"Disabling");
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if (changes & MR_LD_CACHE_WRITE_BACK)
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printf("Setting write cache policy to %s\n",
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policy & MR_LD_CACHE_WRITE_BACK ? "write-back" :
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"write-through");
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if (changes & (MR_LD_CACHE_READ_AHEAD | MR_LD_CACHE_READ_ADAPTIVE))
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printf("Setting read ahead policy to %s\n",
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policy & MR_LD_CACHE_READ_AHEAD ?
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(policy & MR_LD_CACHE_READ_ADAPTIVE ?
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"adaptive" : "always") : "none");
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if (changes & MR_LD_CACHE_WRITE_CACHE_BAD_BBU)
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printf("%s write caching with bad BBU\n",
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policy & MR_LD_CACHE_WRITE_CACHE_BAD_BBU ? "Enabling" :
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"Disabling");
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if (old->disk_cache_policy != new->disk_cache_policy) {
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switch (new->disk_cache_policy) {
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case MR_PD_CACHE_ENABLE:
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printf("Enabling write-cache on physical drives\n");
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break;
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case MR_PD_CACHE_DISABLE:
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printf("Disabling write-cache on physical drives\n");
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break;
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case MR_PD_CACHE_UNCHANGED:
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printf("Using default write-cache setting on physical drives\n");
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break;
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}
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}
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if (mfi_ld_set_props(fd, new) < 0) {
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error = errno;
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warn("Failed to set volume properties");
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return (error);
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}
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return (0);
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}
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static void
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stage_cache_setting(struct mfi_ld_props *props, uint8_t new_policy,
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uint8_t mask)
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{
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props->default_cache_policy &= ~mask;
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props->default_cache_policy |= new_policy;
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}
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/*
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* Parse a single cache directive modifying the passed in policy.
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* Returns -1 on a parse error and the number of arguments consumed
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* on success.
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*/
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static int
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process_cache_command(int ac, char **av, struct mfi_ld_props *props)
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{
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uint8_t policy;
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/* I/O cache settings. */
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if (strcmp(av[0], "all") == 0 || strcmp(av[0], "enable") == 0) {
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stage_cache_setting(props, MR_LD_CACHE_ALLOW_READ_CACHE |
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MR_LD_CACHE_ALLOW_WRITE_CACHE,
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MR_LD_CACHE_ALLOW_READ_CACHE |
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MR_LD_CACHE_ALLOW_WRITE_CACHE);
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return (1);
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}
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if (strcmp(av[0], "none") == 0 || strcmp(av[0], "disable") == 0) {
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stage_cache_setting(props, 0, MR_LD_CACHE_ALLOW_READ_CACHE |
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MR_LD_CACHE_ALLOW_WRITE_CACHE);
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return (1);
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}
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if (strcmp(av[0], "reads") == 0) {
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stage_cache_setting(props, MR_LD_CACHE_ALLOW_READ_CACHE,
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MR_LD_CACHE_ALLOW_READ_CACHE |
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MR_LD_CACHE_ALLOW_WRITE_CACHE);
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return (1);
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}
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if (strcmp(av[0], "writes") == 0) {
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stage_cache_setting(props, MR_LD_CACHE_ALLOW_WRITE_CACHE,
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MR_LD_CACHE_ALLOW_READ_CACHE |
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MR_LD_CACHE_ALLOW_WRITE_CACHE);
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return (1);
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}
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/* Write cache behavior. */
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if (strcmp(av[0], "write-back") == 0) {
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stage_cache_setting(props, MR_LD_CACHE_WRITE_BACK,
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MR_LD_CACHE_WRITE_BACK);
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return (1);
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}
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if (strcmp(av[0], "write-through") == 0) {
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stage_cache_setting(props, 0, MR_LD_CACHE_WRITE_BACK);
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return (1);
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}
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if (strcmp(av[0], "bad-bbu-write-cache") == 0) {
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if (ac < 2) {
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warnx("cache: bad BBU setting required");
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return (-1);
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}
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if (strcmp(av[1], "enable") == 0)
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policy = MR_LD_CACHE_WRITE_CACHE_BAD_BBU;
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else if (strcmp(av[1], "disable") == 0)
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policy = 0;
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else {
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warnx("cache: invalid bad BBU setting");
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return (-1);
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}
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stage_cache_setting(props, policy,
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MR_LD_CACHE_WRITE_CACHE_BAD_BBU);
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return (2);
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}
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/* Read cache behavior. */
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if (strcmp(av[0], "read-ahead") == 0) {
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if (ac < 2) {
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warnx("cache: read-ahead setting required");
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return (-1);
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}
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if (strcmp(av[1], "none") == 0)
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policy = 0;
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else if (strcmp(av[1], "always") == 0)
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policy = MR_LD_CACHE_READ_AHEAD;
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else if (strcmp(av[1], "adaptive") == 0)
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policy = MR_LD_CACHE_READ_AHEAD |
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MR_LD_CACHE_READ_ADAPTIVE;
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else {
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warnx("cache: invalid read-ahead setting");
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return (-1);
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}
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stage_cache_setting(props, policy, MR_LD_CACHE_READ_AHEAD |
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MR_LD_CACHE_READ_ADAPTIVE);
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return (2);
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}
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/* Drive write-cache behavior. */
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if (strcmp(av[0], "write-cache") == 0) {
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if (ac < 2) {
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warnx("cache: write-cache setting required");
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return (-1);
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}
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if (strcmp(av[1], "enable") == 0)
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props->disk_cache_policy = MR_PD_CACHE_ENABLE;
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else if (strcmp(av[1], "disable") == 0)
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props->disk_cache_policy = MR_PD_CACHE_DISABLE;
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else if (strcmp(av[1], "default") == 0)
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props->disk_cache_policy = MR_PD_CACHE_UNCHANGED;
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else {
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warnx("cache: invalid write-cache setting");
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return (-1);
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}
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return (2);
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}
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warnx("cache: Invalid command");
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return (-1);
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}
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static int
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volume_cache(int ac, char **av)
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{
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struct mfi_ld_props props, new;
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int error, fd, consumed;
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uint8_t target_id;
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if (ac < 2) {
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warnx("cache: volume required");
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return (EINVAL);
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}
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fd = mfi_open(mfi_device, O_RDWR);
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if (fd < 0) {
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error = errno;
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warn("mfi_open");
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return (error);
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}
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if (mfi_lookup_volume(fd, av[1], &target_id) < 0) {
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error = errno;
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warn("Invalid volume: %s", av[1]);
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close(fd);
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return (error);
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}
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if (mfi_ld_get_props(fd, target_id, &props) < 0) {
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error = errno;
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warn("Failed to fetch volume properties");
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close(fd);
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return (error);
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}
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if (ac == 2) {
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printf("%s volume %s cache settings:\n", mfi_device,
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mfi_volume_name(fd, target_id));
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printf(" I/O caching: ");
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switch (props.default_cache_policy &
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(MR_LD_CACHE_ALLOW_WRITE_CACHE |
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MR_LD_CACHE_ALLOW_READ_CACHE)) {
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case 0:
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printf("disabled\n");
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break;
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case MR_LD_CACHE_ALLOW_WRITE_CACHE:
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printf("writes\n");
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break;
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case MR_LD_CACHE_ALLOW_READ_CACHE:
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printf("reads\n");
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break;
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case MR_LD_CACHE_ALLOW_WRITE_CACHE |
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MR_LD_CACHE_ALLOW_READ_CACHE:
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printf("writes and reads\n");
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break;
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}
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printf(" write caching: %s\n",
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props.default_cache_policy & MR_LD_CACHE_WRITE_BACK ?
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"write-back" : "write-through");
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printf("write cache with bad BBU: %s\n",
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props.default_cache_policy &
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MR_LD_CACHE_WRITE_CACHE_BAD_BBU ? "enabled" : "disabled");
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printf(" read ahead: %s\n",
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props.default_cache_policy & MR_LD_CACHE_READ_AHEAD ?
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(props.default_cache_policy & MR_LD_CACHE_READ_ADAPTIVE ?
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"adaptive" : "always") : "none");
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printf(" drive write cache: ");
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switch (props.disk_cache_policy) {
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case MR_PD_CACHE_UNCHANGED:
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printf("default\n");
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break;
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case MR_PD_CACHE_ENABLE:
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printf("enabled\n");
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break;
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case MR_PD_CACHE_DISABLE:
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printf("disabled\n");
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break;
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default:
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printf("??? %d\n", props.disk_cache_policy);
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break;
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}
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if (props.default_cache_policy != props.current_cache_policy)
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printf(
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"Cache disabled due to dead battery or ongoing battery relearn\n");
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error = 0;
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} else {
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new = props;
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av += 2;
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ac -= 2;
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while (ac > 0) {
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consumed = process_cache_command(ac, av, &new);
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if (consumed < 0) {
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close(fd);
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return (EINVAL);
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}
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av += consumed;
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ac -= consumed;
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}
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error = update_cache_policy(fd, &props, &new);
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}
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close(fd);
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return (error);
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}
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MFI_COMMAND(top, cache, volume_cache);
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static int
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volume_name(int ac, char **av)
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{
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struct mfi_ld_props props;
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int error, fd;
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uint8_t target_id;
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if (ac != 3) {
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warnx("name: volume and name required");
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return (EINVAL);
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}
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if (strlen(av[2]) >= sizeof(props.name)) {
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warnx("name: new name is too long");
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return (ENOSPC);
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}
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fd = mfi_open(mfi_device, O_RDWR);
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if (fd < 0) {
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error = errno;
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warn("mfi_open");
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return (error);
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}
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if (mfi_lookup_volume(fd, av[1], &target_id) < 0) {
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error = errno;
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warn("Invalid volume: %s", av[1]);
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close(fd);
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return (error);
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}
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if (mfi_ld_get_props(fd, target_id, &props) < 0) {
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error = errno;
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warn("Failed to fetch volume properties");
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close(fd);
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return (error);
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}
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printf("%s volume %s name changed from \"%s\" to \"%s\"\n", mfi_device,
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mfi_volume_name(fd, target_id), props.name, av[2]);
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bzero(props.name, sizeof(props.name));
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strcpy(props.name, av[2]);
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if (mfi_ld_set_props(fd, &props) < 0) {
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error = errno;
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warn("Failed to set volume properties");
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close(fd);
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return (error);
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}
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close(fd);
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return (0);
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}
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MFI_COMMAND(top, name, volume_name);
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static int
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volume_progress(int ac, char **av)
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{
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struct mfi_ld_info info;
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int error, fd;
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uint8_t target_id;
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if (ac != 2) {
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warnx("volume progress: %s", ac > 2 ? "extra arguments" :
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"volume required");
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return (EINVAL);
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}
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fd = mfi_open(mfi_device, O_RDONLY);
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if (fd < 0) {
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error = errno;
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warn("mfi_open");
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return (error);
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}
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if (mfi_lookup_volume(fd, av[1], &target_id) < 0) {
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error = errno;
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warn("Invalid volume: %s", av[1]);
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close(fd);
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return (error);
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}
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/* Get the info for this drive. */
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if (mfi_ld_get_info(fd, target_id, &info, NULL) < 0) {
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error = errno;
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warn("Failed to fetch info for volume %s",
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mfi_volume_name(fd, target_id));
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close(fd);
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return (error);
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}
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/* Display any of the active events. */
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if (info.progress.active & MFI_LD_PROGRESS_CC)
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mfi_display_progress("Consistency Check", &info.progress.cc);
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if (info.progress.active & MFI_LD_PROGRESS_BGI)
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mfi_display_progress("Background Init", &info.progress.bgi);
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if (info.progress.active & MFI_LD_PROGRESS_FGI)
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mfi_display_progress("Foreground Init", &info.progress.fgi);
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if (info.progress.active & MFI_LD_PROGRESS_RECON)
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mfi_display_progress("Reconstruction", &info.progress.recon);
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if ((info.progress.active & (MFI_LD_PROGRESS_CC | MFI_LD_PROGRESS_BGI |
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MFI_LD_PROGRESS_FGI | MFI_LD_PROGRESS_RECON)) == 0)
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printf("No activity in progress for volume %s.\n",
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mfi_volume_name(fd, target_id));
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close(fd);
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return (0);
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}
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MFI_COMMAND(volume, progress, volume_progress);
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