| /* |
| * Copyright (C) 2016 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #define LOG_TAG "storaged" |
| |
| #include <stdio.h> |
| #include <string.h> |
| #include <sys/statvfs.h> |
| |
| #include <numeric> |
| |
| #include <android-base/file.h> |
| #include <android-base/parseint.h> |
| #include <android-base/logging.h> |
| #include <android-base/strings.h> |
| #include <log/log_event_list.h> |
| |
| #include "storaged.h" |
| #include "storaged_info.h" |
| |
| using namespace std; |
| using namespace chrono; |
| using namespace android::base; |
| using namespace storaged_proto; |
| |
| using aidl::android::hardware::health::IHealth; |
| using aidl::android::hardware::health::StorageInfo; |
| |
| const string emmc_info_t::emmc_sysfs = "/sys/bus/mmc/devices/mmc0:0001/"; |
| const char* emmc_info_t::emmc_ver_str[9] = { |
| "4.0", "4.1", "4.2", "4.3", "Obsolete", "4.41", "4.5", "5.0", "5.1" |
| }; |
| |
| const string ufs_info_t::health_file = "/sys/devices/soc/624000.ufshc/health"; |
| |
| namespace { |
| |
| bool FileExists(const std::string& filename) |
| { |
| struct stat buffer; |
| return stat(filename.c_str(), &buffer) == 0; |
| } |
| |
| } // namespace |
| |
| storage_info_t* storage_info_t::get_storage_info(const shared_ptr<IHealth>& healthService) { |
| if (healthService != nullptr) { |
| return new health_storage_info_t(healthService); |
| } |
| if (FileExists(emmc_info_t::emmc_sysfs)) return new emmc_info_t; |
| |
| if (FileExists(ufs_info_t::health_file)) { |
| return new ufs_info_t; |
| } |
| return new storage_info_t; |
| } |
| |
| void storage_info_t::load_perf_history_proto(const IOPerfHistory& perf_history) |
| { |
| Mutex::Autolock _l(si_mutex); |
| |
| if (!perf_history.has_day_start_sec() || |
| perf_history.daily_perf_size() > (int)daily_perf.size() || |
| perf_history.weekly_perf_size() > (int)weekly_perf.size()) { |
| LOG(ERROR) << "Invalid IOPerfHistory proto"; |
| return; |
| } |
| |
| day_start_tp = {}; |
| day_start_tp += chrono::seconds(perf_history.day_start_sec()); |
| |
| nr_samples = perf_history.nr_samples(); |
| if (nr_samples < recent_perf.size()) { |
| recent_perf.erase(recent_perf.begin() + nr_samples, recent_perf.end()); |
| } |
| size_t i = 0; |
| for (auto bw : perf_history.recent_perf()) { |
| if (i < recent_perf.size()) { |
| recent_perf[i] = bw; |
| } else { |
| recent_perf.push_back(bw); |
| } |
| ++i; |
| } |
| |
| nr_days = perf_history.nr_days(); |
| i = 0; |
| for (auto bw : perf_history.daily_perf()) { |
| daily_perf[i++] = bw; |
| } |
| |
| nr_weeks = perf_history.nr_weeks(); |
| i = 0; |
| for (auto bw : perf_history.weekly_perf()) { |
| weekly_perf[i++] = bw; |
| } |
| } |
| |
| void storage_info_t::refresh(IOPerfHistory* perf_history) |
| { |
| struct statvfs buf; |
| if (statvfs(userdata_path.c_str(), &buf) != 0) { |
| PLOG(WARNING) << "Failed to get userdata info"; |
| return; |
| } |
| |
| userdata_total_kb = buf.f_bsize * buf.f_blocks >> 10; |
| userdata_free_kb = buf.f_bfree * buf.f_blocks >> 10; |
| |
| Mutex::Autolock _l(si_mutex); |
| |
| perf_history->Clear(); |
| perf_history->set_day_start_sec( |
| duration_cast<chrono::seconds>(day_start_tp.time_since_epoch()).count()); |
| for (const uint32_t& bw : recent_perf) { |
| perf_history->add_recent_perf(bw); |
| } |
| perf_history->set_nr_samples(nr_samples); |
| for (const uint32_t& bw : daily_perf) { |
| perf_history->add_daily_perf(bw); |
| } |
| perf_history->set_nr_days(nr_days); |
| for (const uint32_t& bw : weekly_perf) { |
| perf_history->add_weekly_perf(bw); |
| } |
| perf_history->set_nr_weeks(nr_weeks); |
| } |
| |
| void storage_info_t::publish() |
| { |
| android_log_event_list(EVENTLOGTAG_EMMCINFO) |
| << version << eol << lifetime_a << lifetime_b |
| << LOG_ID_EVENTS; |
| } |
| |
| void storage_info_t::update_perf_history(uint32_t bw, |
| const time_point<system_clock>& tp) |
| { |
| Mutex::Autolock _l(si_mutex); |
| |
| if (tp > day_start_tp && |
| duration_cast<chrono::seconds>(tp - day_start_tp).count() < DAY_TO_SEC) { |
| if (nr_samples >= recent_perf.size()) { |
| recent_perf.push_back(bw); |
| } else { |
| recent_perf[nr_samples] = bw; |
| } |
| nr_samples++; |
| return; |
| } |
| |
| if (nr_samples < recent_perf.size()) { |
| recent_perf.erase(recent_perf.begin() + nr_samples, recent_perf.end()); |
| } |
| |
| uint32_t daily_avg_bw = 0; |
| if (!recent_perf.empty()) { |
| daily_avg_bw = accumulate(recent_perf.begin(), recent_perf.end(), 0) / recent_perf.size(); |
| } |
| |
| day_start_tp = tp - chrono::seconds(duration_cast<chrono::seconds>( |
| tp.time_since_epoch()).count() % DAY_TO_SEC); |
| |
| nr_samples = 0; |
| if (recent_perf.empty()) |
| recent_perf.resize(1); |
| recent_perf[nr_samples++] = bw; |
| |
| if (nr_days < WEEK_TO_DAYS) { |
| daily_perf[nr_days++] = daily_avg_bw; |
| return; |
| } |
| |
| DCHECK(nr_days > 0); |
| uint32_t week_avg_bw = accumulate(daily_perf.begin(), |
| daily_perf.begin() + nr_days, 0) / nr_days; |
| |
| nr_days = 0; |
| daily_perf[nr_days++] = daily_avg_bw; |
| |
| if (nr_weeks >= YEAR_TO_WEEKS) { |
| nr_weeks = 0; |
| } |
| weekly_perf[nr_weeks++] = week_avg_bw; |
| } |
| |
| vector<int> storage_info_t::get_perf_history() |
| { |
| Mutex::Autolock _l(si_mutex); |
| |
| vector<int> ret(3 + recent_perf.size() + daily_perf.size() + weekly_perf.size()); |
| |
| ret[0] = recent_perf.size(); |
| ret[1] = daily_perf.size(); |
| ret[2] = weekly_perf.size(); |
| |
| int start = 3; |
| for (size_t i = 0; i < recent_perf.size(); i++) { |
| int idx = (recent_perf.size() + nr_samples - 1 - i) % recent_perf.size(); |
| ret[start + i] = recent_perf[idx]; |
| } |
| |
| start += recent_perf.size(); |
| for (size_t i = 0; i < daily_perf.size(); i++) { |
| int idx = (daily_perf.size() + nr_days - 1 - i) % daily_perf.size(); |
| ret[start + i] = daily_perf[idx]; |
| } |
| |
| start += daily_perf.size(); |
| for (size_t i = 0; i < weekly_perf.size(); i++) { |
| int idx = (weekly_perf.size() + nr_weeks - 1 - i) % weekly_perf.size(); |
| ret[start + i] = weekly_perf[idx]; |
| } |
| |
| return ret; |
| } |
| |
| uint32_t storage_info_t::get_recent_perf() { |
| Mutex::Autolock _l(si_mutex); |
| if (recent_perf.size() == 0) return 0; |
| return accumulate(recent_perf.begin(), recent_perf.end(), recent_perf.size() / 2) / |
| recent_perf.size(); |
| } |
| |
| void emmc_info_t::report() |
| { |
| if (!report_sysfs()) return; |
| |
| publish(); |
| } |
| |
| bool emmc_info_t::report_sysfs() |
| { |
| string buffer; |
| uint16_t rev = 0; |
| |
| if (!ReadFileToString(emmc_sysfs + "rev", &buffer)) { |
| return false; |
| } |
| |
| if (sscanf(buffer.c_str(), "0x%hx", &rev) < 1 || |
| rev < 7 || rev > ARRAY_SIZE(emmc_ver_str)) { |
| return false; |
| } |
| |
| version = "emmc "; |
| version += emmc_ver_str[rev]; |
| |
| if (!ReadFileToString(emmc_sysfs + "pre_eol_info", &buffer)) { |
| return false; |
| } |
| |
| if (sscanf(buffer.c_str(), "%hx", &eol) < 1 || eol == 0) { |
| return false; |
| } |
| |
| if (!ReadFileToString(emmc_sysfs + "life_time", &buffer)) { |
| return false; |
| } |
| |
| if (sscanf(buffer.c_str(), "0x%hx 0x%hx", &lifetime_a, &lifetime_b) < 2 || |
| (lifetime_a == 0 && lifetime_b == 0)) { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| void ufs_info_t::report() |
| { |
| string buffer; |
| if (!ReadFileToString(health_file, &buffer)) { |
| return; |
| } |
| |
| vector<string> lines = Split(buffer, "\n"); |
| if (lines.empty()) { |
| return; |
| } |
| |
| char rev[8]; |
| if (sscanf(lines[0].c_str(), "ufs version: 0x%7s\n", rev) < 1) { |
| return; |
| } |
| |
| version = "ufs " + string(rev); |
| |
| for (size_t i = 1; i < lines.size(); i++) { |
| char token[32]; |
| uint16_t val; |
| int ret; |
| if ((ret = sscanf(lines[i].c_str(), |
| "Health Descriptor[Byte offset 0x%*d]: %31s = 0x%hx", |
| token, &val)) < 2) { |
| continue; |
| } |
| |
| if (string(token) == "bPreEOLInfo") { |
| eol = val; |
| } else if (string(token) == "bDeviceLifeTimeEstA") { |
| lifetime_a = val; |
| } else if (string(token) == "bDeviceLifeTimeEstB") { |
| lifetime_b = val; |
| } |
| } |
| |
| if (eol == 0 || (lifetime_a == 0 && lifetime_b == 0)) { |
| return; |
| } |
| |
| publish(); |
| } |
| |
| void health_storage_info_t::report() { |
| vector<StorageInfo> halInfos; |
| auto ret = mHealth->getStorageInfo(&halInfos); |
| if (ret.isOk()) { |
| if (halInfos.size() != 0) { |
| set_values_from_hal_storage_info(halInfos[0]); |
| publish(); |
| return; |
| } |
| LOG(ERROR) << "getStorageInfo succeeded but size is 0"; |
| return; |
| } |
| if (ret.getExceptionCode() == EX_UNSUPPORTED_OPERATION) { |
| LOG(DEBUG) << "getStorageInfo is not supported on health HAL."; |
| return; |
| } |
| LOG(ERROR) << "getStorageInfo failed with " << ret.getDescription(); |
| } |
| |
| void health_storage_info_t::set_values_from_hal_storage_info(const StorageInfo& halInfo) { |
| eol = halInfo.eol; |
| lifetime_a = halInfo.lifetimeA; |
| lifetime_b = halInfo.lifetimeB; |
| version = halInfo.version; |
| } |