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