blob: 789afba8d054d90ca8ef4d15090734d7692d189c [file] [log] [blame]
#include "occ_status.hpp"
#include "occ_manager.hpp"
#include "occ_sensor.hpp"
#include "powermode.hpp"
#include "utils.hpp"
#include <fmt/core.h>
#ifdef POWER10
#include <com/ibm/Host/Target/server.hpp>
#endif
#include <phosphor-logging/log.hpp>
#include <filesystem>
namespace open_power
{
namespace occ
{
using namespace phosphor::logging;
// Handles updates to occActive property
bool Status::occActive(bool value)
{
if (value != this->occActive())
{
log<level::INFO>(fmt::format("Status::occActive OCC{} changed to {}",
instance, value)
.c_str());
if (value)
{
// Bind the device
device.bind();
// Start watching for errors
addErrorWatch();
// Reset last OCC state
lastState = 0;
if (device.master())
{
// Update powercap bounds from OCC
manager.updatePcapBounds();
}
// Update the OCC active sensor before notifying Manager
Base::Status::occActive(value);
// Call into Manager to let know that we have bound
if (this->managerCallBack)
{
this->managerCallBack(instance, value);
}
}
else
{
#ifdef POWER10
if (pmode && device.master())
{
// Prevent mode changes
pmode->setMasterActive(false);
}
if (safeStateDelayTimer.isEnabled())
{
// stop safe delay timer
safeStateDelayTimer.setEnabled(false);
}
#endif
// Call into Manager to let know that we will unbind.
if (this->managerCallBack)
{
this->managerCallBack(instance, value);
}
// Stop watching for errors
removeErrorWatch();
// Do the unbind.
device.unBind();
}
}
else if (value && !device.bound())
{
// Existing error watch is on a dead file descriptor.
removeErrorWatch();
/*
* In it's constructor, Status checks Device::bound() to see if OCC is
* active or not.
* Device::bound() checks for occX-dev0 directory.
* We will lose occX-dev0 directories during FSI rescan.
* So, if we start this application (and construct Status), and then
* later do FSI rescan, we will end up with occActive = true and device
* NOT bound. Lets correct that situation here.
*/
device.bind();
// Add error watch again
addErrorWatch();
}
else if (!value && device.bound())
{
removeErrorWatch();
// In the event that the application never receives the active signal
// even though the OCC is active (this can occur if the BMC is rebooted
// with the host on, since the initial OCC driver probe will discover
// the OCCs), this application needs to be able to unbind the device
// when we get the OCC inactive signal.
device.unBind();
}
return Base::Status::occActive(value);
}
// Callback handler when a device error is reported.
void Status::deviceError()
{
#ifdef POWER10
if (pmode && device.master())
{
// Prevent mode changes
pmode->setMasterActive(false);
}
#endif
// This would deem OCC inactive
this->occActive(false);
// Reset the OCC
this->resetOCC();
}
// Sends message to host control command handler to reset OCC
void Status::resetOCC()
{
log<level::INFO>(
fmt::format(">>Status::resetOCC() - requesting reset for OCC{}",
instance)
.c_str());
#ifdef PLDM
if (resetCallBack)
{
this->resetCallBack(instance);
}
#else
constexpr auto CONTROL_HOST_PATH = "/org/open_power/control/host0";
constexpr auto CONTROL_HOST_INTF = "org.open_power.Control.Host";
// This will throw exception on failure
auto service = utils::getService(CONTROL_HOST_PATH, CONTROL_HOST_INTF);
auto& bus = utils::getBus();
auto method = bus.new_method_call(service.c_str(), CONTROL_HOST_PATH,
CONTROL_HOST_INTF, "Execute");
// OCC Reset control command
method.append(convertForMessage(Control::Host::Command::OCCReset).c_str());
// OCC Sensor ID for callout reasons
method.append(std::variant<uint8_t>(std::get<0>(sensorMap.at(instance))));
bus.call_noreply(method);
return;
#endif
}
// Handler called by Host control command handler to convey the
// status of the executed command
void Status::hostControlEvent(sdbusplus::message::message& msg)
{
std::string cmdCompleted{};
std::string cmdStatus{};
msg.read(cmdCompleted, cmdStatus);
log<level::DEBUG>("Host control signal values",
entry("COMMAND=%s", cmdCompleted.c_str()),
entry("STATUS=%s", cmdStatus.c_str()));
if (Control::Host::convertResultFromString(cmdStatus) !=
Control::Host::Result::Success)
{
if (Control::Host::convertCommandFromString(cmdCompleted) ==
Control::Host::Command::OCCReset)
{
// Must be a Timeout. Log an Error trace
log<level::ERR>(
"Error resetting the OCC.", entry("PATH=%s", path.c_str()),
entry("SENSORID=0x%X", std::get<0>(sensorMap.at(instance))));
}
}
return;
}
// Called from Manager::pollerTimerExpired() in preperation to POLL OCC.
void Status::readOccState()
{
currentOccReadRetriesCount = occReadRetries;
occReadStateNow();
}
#ifdef POWER10
// Special processing that needs to happen once the OCCs change to ACTIVE state
void Status::occsWentActive()
{
CmdStatus status = CmdStatus::SUCCESS;
status = pmode->sendModeChange();
if (status != CmdStatus::SUCCESS)
{
log<level::ERR>(
fmt::format(
"Status::occsWentActive: OCC mode change failed with status {}",
status)
.c_str());
// Disable and reset to try recovering
deviceError();
}
status = pmode->sendIpsData();
if (status != CmdStatus::SUCCESS)
{
log<level::ERR>(
fmt::format(
"Status::occsWentActive: Sending Idle Power Save Config data failed with status {}",
status)
.c_str());
if (status == CmdStatus::COMM_FAILURE)
{
// Disable and reset to try recovering
deviceError();
}
}
}
// Send Ambient and Altitude to the OCC
CmdStatus Status::sendAmbient(const uint8_t inTemp, const uint16_t inAltitude)
{
CmdStatus status = CmdStatus::FAILURE;
bool ambientValid = true;
uint8_t ambientTemp = inTemp;
uint16_t altitude = inAltitude;
if (ambientTemp == 0xFF)
{
// Get latest readings from manager
manager.getAmbientData(ambientValid, ambientTemp, altitude);
log<level::DEBUG>(
fmt::format("sendAmbient: valid: {}, Ambient: {}C, altitude: {}m",
ambientValid, ambientTemp, altitude)
.c_str());
}
std::vector<std::uint8_t> cmd, rsp;
cmd.reserve(11);
cmd.push_back(uint8_t(CmdType::SEND_AMBIENT));
cmd.push_back(0x00); // Data Length (2 bytes)
cmd.push_back(0x08); //
cmd.push_back(0x00); // Version
cmd.push_back(ambientValid ? 0 : 0xFF); // Ambient Status
cmd.push_back(ambientTemp); // Ambient Temperature
cmd.push_back(altitude >> 8); // Altitude in meters (2 bytes)
cmd.push_back(altitude & 0xFF); //
cmd.push_back(0x00); // Reserved (3 bytes)
cmd.push_back(0x00);
cmd.push_back(0x00);
log<level::DEBUG>(fmt::format("sendAmbient: SEND_AMBIENT "
"command to OCC{} ({} bytes)",
instance, cmd.size())
.c_str());
status = occCmd.send(cmd, rsp);
if (status == CmdStatus::SUCCESS)
{
if (rsp.size() == 5)
{
if (RspStatus::SUCCESS != RspStatus(rsp[2]))
{
log<level::ERR>(
fmt::format(
"sendAmbient: SEND_AMBIENT failed with rspStatus 0x{:02X}",
rsp[2])
.c_str());
dump_hex(rsp);
status = CmdStatus::FAILURE;
}
}
else
{
log<level::ERR>(
fmt::format(
"sendAmbient: INVALID SEND_AMBIENT response length:{}",
rsp.size())
.c_str());
dump_hex(rsp);
status = CmdStatus::FAILURE;
}
}
else
{
log<level::ERR>(
fmt::format(
"sendAmbient: SEND_AMBIENT FAILED! with status 0x{:02X}",
status)
.c_str());
if (status == CmdStatus::COMM_FAILURE)
{
// Disable and reset to try recovering
deviceError();
}
}
return status;
}
// Called when safe timer expires to determine if OCCs need to be reset
void Status::safeStateDelayExpired()
{
if (this->occActive())
{
log<level::INFO>(
fmt::format(
"safeStateDelayExpired: OCC{} is in SAFE state, requesting reset",
instance)
.c_str());
// Disable and reset to try recovering
deviceError();
}
}
#endif // POWER10
fs::path Status::getHwmonPath()
{
using namespace std::literals::string_literals;
if (!fs::exists(hwmonPath))
{
static bool tracedFail[8] = {0};
if (!hwmonPath.empty())
{
log<level::ERR>(
fmt::format("Status::getHwmonPath(): path no longer exists: {}",
hwmonPath.c_str())
.c_str());
hwmonPath.clear();
}
// Build the base HWMON path
fs::path prefixPath =
fs::path{OCC_HWMON_PATH + "occ-hwmon."s +
std::to_string(instance + 1) + "/hwmon/"s};
// Get the hwmonXX directory name
try
{
// there should only be one directory
const int numDirs = std::distance(
fs::directory_iterator(prefixPath), fs::directory_iterator{});
if (numDirs == 1)
{
hwmonPath = *fs::directory_iterator(prefixPath);
tracedFail[instance] = false;
}
else
{
if (!tracedFail[instance])
{
log<level::ERR>(
fmt::format(
"Status::getHwmonPath(): Found multiple ({}) hwmon paths!",
numDirs)
.c_str());
tracedFail[instance] = true;
}
}
}
catch (const fs::filesystem_error& e)
{
if (!tracedFail[instance])
{
log<level::ERR>(
fmt::format(
"Status::getHwmonPath(): error accessing {}: {}",
prefixPath.c_str(), e.what())
.c_str());
tracedFail[instance] = true;
}
}
}
return hwmonPath;
}
// Called to read state and upon failure to read after occReadStateFailTimer.
void Status::occReadStateNow()
{
unsigned int state;
const fs::path filename =
fs::path(DEV_PATH) /
fs::path(sysfsName + "." + std::to_string(instance + 1)) / "occ_state";
std::ifstream file;
bool goodFile = false;
// open file.
file.open(filename, std::ios::in);
const int openErrno = errno;
// File is open and state can be used.
if (file.is_open() && file.good())
{
goodFile = true;
file >> state;
if (state != lastState)
{
// Trace OCC state changes
log<level::INFO>(
fmt::format("Status::readOccState: OCC{} state 0x{:02X}",
instance, state)
.c_str());
lastState = state;
#ifdef POWER10
if (OccState(state) == OccState::ACTIVE)
{
if (pmode && device.master())
{
// Set the master OCC on the PowerMode object
pmode->setMasterOcc(path);
// Enable mode changes
pmode->setMasterActive();
// Special processing by master OCC when it goes active
occsWentActive();
}
CmdStatus status = sendAmbient();
if (status != CmdStatus::SUCCESS)
{
log<level::ERR>(
fmt::format(
"readOccState: Sending Ambient failed with status {}",
status)
.c_str());
}
}
// If OCC in known Good State.
if ((OccState(state) == OccState::ACTIVE) ||
(OccState(state) == OccState::CHARACTERIZATION) ||
(OccState(state) == OccState::OBSERVATION))
{
// Good OCC State then sensors valid again
stateValid = true;
if (safeStateDelayTimer.isEnabled())
{
// stop safe delay timer (no longer in SAFE state)
safeStateDelayTimer.setEnabled(false);
}
}
// Else not Valid state We would be in SAFE mode.
// This captures both SAFE mode, and 0x00, or other invalid
// state values.
else
{
if (!safeStateDelayTimer.isEnabled())
{
// start safe delay timer (before requesting reset)
using namespace std::literals::chrono_literals;
safeStateDelayTimer.restartOnce(60s);
}
// Not valid state, update sensors to Nan & not functional.
stateValid = false;
}
#else
// Before P10 state not checked, only used good file open.
stateValid = true;
#endif
}
}
file.close();
// if failed to Read a state or not a valid state -> Attempt retry
// after 1 Second delay if allowed.
if ((!goodFile) || (!stateValid))
{
if (!goodFile)
{
// If not able to read, OCC may be offline
log<level::ERR>(
fmt::format("Status::readOccState: open failed (errno={})",
openErrno)
.c_str());
}
else
{
// else this failed due to state not valid.
log<level::ERR>(
fmt::format(
"Status::readOccState: OCC{} Invalid state 0x{:02X}",
instance, state)
.c_str());
}
#ifdef READ_OCC_SENSORS
manager.setSensorValueToNonFunctional(instance);
#endif
// See occReadRetries for number of retry attempts.
if (currentOccReadRetriesCount > 0)
{
--currentOccReadRetriesCount;
#ifdef POWER10
using namespace std::chrono_literals;
occReadStateFailTimer.restartOnce(1s);
#endif
}
else
{
#ifdef POWER10
if (!stateValid && occActive())
{
if (!safeStateDelayTimer.isEnabled())
{
log<level::ERR>(
"Starting 60 sec delay timer before requesting a reset");
// start safe delay timer (before requesting reset)
using namespace std::literals::chrono_literals;
safeStateDelayTimer.restartOnce(60s);
}
}
#else
// State could not be determined, set it to NO State.
lastState = 0;
// Disable the ability to send Failed actions until OCC is
// Active again.
stateValid = false;
// Disable and reset to try recovering
deviceError();
#endif
}
}
}
} // namespace occ
} // namespace open_power