When using sparse on zpcimon several warnings like the one below are
generated:
warning: incorrect type in argument 1 (different base types)
expected unsigned int [usertype] __bsx
got restricted __le32 [usertype] warning_temp_time
This is because several members in struct nvme_smart_log are marked as
__le32. These members are correctly converted to host endianness before
use via le32toh() respectively le16toh(). Since these functions take
their parameters as plain uint32_t or uint16_t however the implicit
conversion triggers the above warning. Fix this by adding the __force
attribute and using it to mark type conversions in the leXXtoh() calls.
Reviewed-by: Jan Höppner <hoeppner@linux.ibm.com>
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
The __packed attribute is used without including the necessary
zt_common.h header, add it. Note that luckily the struct as it currently
exists doesn't actually required __packed as the natural alignment
leaves no holes. Still if in the future the reserved field is split up
it would need it and this keeps it consistent with the kernel
declaration.
Reviewed-by: Jan Höppner <hoeppner@linux.ibm.com>
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
The SCLP Write Event Data Action Qualifier 4 is only available for
NVMes with subsystem vendor ID matching IBM. Add both IDs to struct
zpci_dev in libzpci. Also add them to the libzpci_example output
and adjust its output to multiline to handle more data.
Reviewed-by: Jan Höppner <hoeppner@linux.ibm.com>
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
Use libudev to monitor for "change" events in the "nvme" subsystem that
use the "pcie" transport to trigger NVMe SMART data collection. Only
collect data from the NVMe referenced by the udev event.
Assisted-by: IBM Bob:1.0.1
Reviewed-by: Jan Höppner <hoeppner@linux.ibm.com>
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
This uses the same format as:
nvme smart-log --output-format=json /dev/nvmeX
One complication being that several values in the SMART data use
unsigned 128 bit integers. Both GCC and Clang support __uint128_t as
a C extension but don't offer printf() support for it. Just like
nvme-cli add a custom uint128_t to string function..
Reviewed-by: Jan Höppner <hoeppner@linux.ibm.com>
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
Add a new monitor which uses libnvme to collect SMART data from NVMes.
This monitor only implements the .collect_adapter_data operation since
it carries no state across data collections. Nevertheless for future
symmetry and possible future expansion also add an empty struct
nvmemon_ctx.
Reviewed-by: Jan Höppner <hoeppner@linux.ibm.com>
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
Some of the attributes printed as JSON by opticsmon are common to all
PCI adapters factor these out into reusable helper functions
zpci_adapter_json_print_start() and zpci_adapter_json_print_end().
Reviewed-by: Jan Höppner <hoeppner@linux.ibm.com>
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
Introduce the concept of a generic zPCI device monitor by creating the
zpcimon_ops operations struct turning all optics specific calls into
abstract monitor calls. Handle monitors as a static array of zpcimon_ops
based monitors of which the now split out optics monitor is currently
the only one. All operations are in principle optional though a monitor
which provides an init operation must also provide the corresponding
destroy operation.
Keep the base64 based JSON pair as non optics specific for later re-use
and make it just skip the output in the very unlikely case that encoding
fails. In follow on commits a monitor for NVMe devices collecting SMART
data will be added.
Reviewed-by: Jan Höppner <hoeppner@linux.ibm.com>
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
Introduce separate '--format' option to set output format. Use the new
JSON Lines format explicitly in the systemd unit. Since JSON Lines
format only uses printable characters this removes the need for passing
'-a' to systemctl status. At the same time JSON-SEQ is more easily
parsable using 'jq --seq' so keep it the default for easier scripting.
Reviewed-by: Jan Höppner <hoeppner@linux.ibm.com>
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
The opticsmon tool started out as a tool for monitoring the health of
optical modules in directly attached PCI NICs. In the future however it
will also monitor the health of other PCI devices. In particular in
a first step it will monitor the health of directly attached NVMe
devices.
To reflect this broadening of its scope rename opticsmon to zpcimon. Add
zpcimon.service and install it both under the new name and symlinked as
opticsmon.service for backwards compatibility. Since users are expected
to mostly just enable the service this keeps old instructions just
working.
Reviewed-by: Jan Höppner <hoeppner@linux.ibm.com>
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
