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https://bugzilla.redhat.com/show_bug.cgi?id=1349696 When creating a vHBA, the process is to feed XML to nodeDeviceCreateXML that lists the <parent> scsi_hostX to use to create the vHBA. However, between reboots, it's possible that the <parent> changes its scsi_hostX to scsi_hostY and saved XML to perform the creation will either fail or create a vHBA using the wrong parent. So add the ability to provide "wwnn" and "wwpn" or "fabric_wwn" to the <parent> instead of a name of the scsi_hostN that is the parent. The allowed XML will thus be: <parent>scsi_host3</parent> (current) or <parent wwnn='$WWNN' wwpn='$WWPN'/> or <parent fabric_wwn='$WWNN'/> Using the wwnn/wwpn or fabric_wwn ensures the same 'scsi_hostN' is selected between hardware reconfigs or host reboots. The fabric_wwn Using the wwnn/wwpn pair will provide the most specific search option, while fabric_wwn will at least ensure usage of the same SAN, but maybe not the same scsi_hostN. This patch will add the new fields to the nodedev.rng for input purposes only since the input XML is essentially thrown away, no need to Format the values since they'd already be printed as part of the scsi_host data block. New API virNodeDeviceGetParentHostByWWNs will take the parent "wwnn" and "wwpn" in order to search the list of devices for matching capability data fields wwnn and wwpn. New API virNodeDeviceGetParentHostByFabricWWN will take the parent "fabric_wwn" in order to search the list of devices for matching capability data field fabric_wwn. |
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| .. | ||
| node_device_driver.c | ||
| node_device_driver.h | ||
| node_device_hal.c | ||
| node_device_hal.h | ||
| node_device_linux_sysfs.c | ||
| node_device_linux_sysfs.h | ||
| node_device_udev.c | ||
| node_device_udev.h | ||