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>
The get_device_node() function for getting the name of an NVMe's
controller device e.g. "nvme0" as implemented in zpcictl is generally
useful and will be needed for NVMe SMART data collection in zpcimon as
well. Move it to libzpci and rename it to zpci_get_nvme_device_node() to
account for the change in namespace.
It would be tempting to pass a struct zpci_dev* instead of a const char*
but as zpcictl uses an incompatible struct zpci_device* this will
require a larger rework. Prioritize minimizing code duplication for now.
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>
Finding a PCI device given the name of a netdev seems generally useful
so pull this out into a new zpci_find_by_netdev() function in libzpci
and use this to simplify on_link_change() removing the need for
backwards goto.
Reviewed-by: Halil Pasic <pasic@linux.ibm.com>
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 upcoming optics monitoring tool will have to issue SCLP Write Event
data just like zpcictl so pull that functionality out and into libzpci.
While at it decouple getting SMART data from the actual SCLP handling.
No change in behavior intended.
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
This introduces libzpci which is a library intended to handle s390x
specific PCI attributes and peculiarities. As a first step it introduces
code to list PCI devices on s390x including an initial set of s390x
specific attributes like FID, PFT, UID etc. It also collects information
on network device associated with a particular PCI function. The
included example serves as a demonstration of using libzpci to list PCI
devices.
Reviewed-by: Halil Pasic <pasic@linux.ibm.com>
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
