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nodedev: check/add for scsi_host caps for ListDevices

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Commit id '652a2ec6' introduced two new node device capability flags
and the ability to use those flags as a way to search for a specific
subset of a 'scsi_host' device - namely a 'fc_host' and/or 'vports'.
The code modified the virNodeDeviceCapMatch whichs allows for searching
using the 'virsh nodedev-list [cap]' via virConnectListAllNodeDevices.

However, the original patches did not account for other searches for
the same capability key from virNodeListDevices using virNodeDeviceHasCap.
Since 'fc_host' and 'vports' are self defined bits of a 'scsi_host'
device mere string comparison against the basic/root type is not
sufficient.

This patch adds the check for the 'fc_host' and 'vports' bits within
a 'scsi_host' device and allows the following python code to find the
capabilities for the device:

import libvirt
conn = libvirt.openReadOnly('qemu:///system')
fc = conn.listDevices('fc_host', 0)
print(fc)
fc = conn.listDevices('vports', 0)
print(fc)

Signed-off-by: Shivaprasad G Bhat <sbhat@linux.vnet.ibm.com>
This commit is contained in:
Shivaprasad G Bhat 2015-02-03 06:55:16 -05:00 committed by John Ferlan
parent 1b2c9ce752
commit e8fcac8ecb
1 changed files with 8 additions and 0 deletions
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8
src/conf/node_device_conf.c
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@ -78,6 +78,14 @@ int virNodeDeviceHasCap(const virNodeDeviceObj *dev, const char *cap)
while (caps) {
if (STREQ(cap, virNodeDevCapTypeToString(caps->type)))
return 1;
else if (caps->type == VIR_NODE_DEV_CAP_SCSI_HOST)
if ((STREQ(cap, "fc_host") &&
(caps->data.scsi_host.flags &
VIR_NODE_DEV_CAP_FLAG_HBA_FC_HOST)) ||
(STREQ(cap, "vports") &&
(caps->data.scsi_host.flags &
VIR_NODE_DEV_CAP_FLAG_HBA_VPORT_OPS)))
return 1;
caps = caps->next;
}
return 0;