Martin Polednik has uploaded a new change for review.
Change subject: vdsm hostdev: add support for SCSI devices
......................................................................
vdsm hostdev: add support for SCSI devices
Libvirt allows passthrough of SCSI devices - this patch
exposes the functionality in vdsm
Change-Id: Ia953bcd5eda1b97235a8dd2f5f9593d8f302e5d6
Signed-off-by: Martin Polednik <mpole...@redhat.com>
---
M vdsm/caps.py
M vdsm/rpc/vdsmapi-schema.json
M vdsm/virt/vm.py
3 files changed, 51 insertions(+), 3 deletions(-)
git pull ssh://gerrit.ovirt.org:29418/vdsm refs/changes/58/29058/1
diff --git a/vdsm/caps.py b/vdsm/caps.py
index 8c16af6..6112763 100644
--- a/vdsm/caps.py
+++ b/vdsm/caps.py
@@ -530,7 +530,7 @@
# back that we could use to uniquely identify and initiate a device
continue
- if capability in ('pci', 'usb_device'):
+ if capability in ('pci', 'usb_device', 'scsi'):
# Libvirt only allows to attach USB device with capability 'usb',
# but the bus identifies itself as 'usb' while device as
# 'usb_device'
diff --git a/vdsm/rpc/vdsmapi-schema.json b/vdsm/rpc/vdsmapi-schema.json
index ac10144..52f20c1 100644
--- a/vdsm/rpc/vdsmapi-schema.json
+++ b/vdsm/rpc/vdsmapi-schema.json
@@ -3180,9 +3180,11 @@
#
# @usb: USB device
#
+# @scsi: SCSI device
+#
# Since: 4.16.0
##
-{'enum': 'HostDeviceCapability', 'data': ['pci', 'usb']}
+{'enum': 'HostDeviceCapability', 'data': ['pci', 'usb', 'scsi']}
##
# @HostDeviceSpecParams:
@@ -3200,11 +3202,18 @@
# @startupPolicy: #optional Possible boot handling with attached device
# (for @usb)
#
+# @readonly #optional If present, indicates that the device is read
+# only (for @scsi)
+#
+# @shareable #optional If present, this indicates the device is
+# expected to be shared between domains (for @scsi)
+#
# Since: 4.16.0
##
{'type': 'HostDeviceSpecParams',
'data': {'*bootorder': 'int', '*bar': 'bool', '*file': 'str',
- '*startupPolicy': 'StartupPolicy'}}
+ '*startupPolicy': 'StartupPolicy', '*shareable': 'bool',
+ '*readonly*': 'bool'}}
##
# @HostDevice:
diff --git a/vdsm/virt/vm.py b/vdsm/virt/vm.py
index 6a6978e..3cb2eb9 100644
--- a/vdsm/virt/vm.py
+++ b/vdsm/virt/vm.py
@@ -1670,6 +1670,33 @@
addr['vendor_id'], addr['bus'], addr['device'])
return addr
+ def getScsiAddr(self):
+ capsxml = self._parsecaps()
+ addr = {}
+
+ addr['type'] = 'scsi'
+ addr['bus'] = capsxml.getElementsByTagName('bus')[0].firstChild. \
+ nodeValue
+ addr['target'] = capsxml.getElementsByTagName('target')[0]. \
+ firstChild.nodeValue
+ addr['unit'] = capsxml.getElementsByTagName('lun')[0]. \
+ firstChild.nodeValue
+
+ self.log.debug('SCSI device %s at address '
+ '{bus: %s, target: %s, unit: %s}',
+ self.name, addr['bus'], addr['target'], addr['unit'],
+ addr['device'])
+ return addr
+
+ def getScsiAdapter(self):
+ capsxml = self._parsecaps()
+
+ adapter = 'scsi_host{}'.format(
+ capsxml.getElementsByTagName('host')[0].firstChild.nodeValue)
+
+ self.log.debug('SCSI device %s adapter %s', self.name, adapter)
+ return adapter
+
def getXML(self):
"""
Create domxml for a hostdev device.
@@ -1717,6 +1744,18 @@
if 'startupPolicy' in self.specParams:
source.setAttrs(startupPolicy=self.specParams['startupPolicy'])
+ elif self.capability == 'scsi':
+ source.appendChildWithArgs('address', None,
+ **self.getScsiHost())
+ source.appendChildWithArgs('adapter', None,
+ **self.getScsiAdapter())
+
+ if 'readonly' in self.specParams:
+ hostdev.appendChild('readonly')
+
+ if 'shareable' in self.specParams:
+ hostdev.appendChild('shareable')
+
return hostdev
--
To view, visit http://gerrit.ovirt.org/29058
To unsubscribe, visit http://gerrit.ovirt.org/settings
Gerrit-MessageType: newchange
Gerrit-Change-Id: Ia953bcd5eda1b97235a8dd2f5f9593d8f302e5d6
Gerrit-PatchSet: 1
Gerrit-Project: vdsm
Gerrit-Branch: master
Gerrit-Owner: Martin Polednik <mpole...@redhat.com>
_______________________________________________
vdsm-patches mailing list
vdsm-patches@lists.fedorahosted.org
https://lists.fedorahosted.org/mailman/listinfo/vdsm-patches
