Set FrontendMaxQueues by default

Limiting the number of queues to the same value defined in xennet's INF
file prevents xenvif from allocating many more resources than required.

Currently, xenvif will allocate a queue for each active CPU, but xennet
only reports a maximum of 8 RSS queues to Windows. When vCPU count is
greather than 8, additional queues are not used and just consume resources.

Signed-off-by: Owen Smith <owen.smith@cloud.com>

diff --git a/src/xenvif.inf b/src/xenvif.inf
index d81fe52c65dd4568385e7b907ad6b6488c5e9f4e..4b5c9f7a18f7d2850988392e37260a29f032375e 100644 (file)
--- a/src/xenvif.inf
+++ b/src/xenvif.inf
@@ -88,6 +88,7 @@ HKR,,"BootFlags",0x00010003,0x81
 [XenVif_Parameters]
 HKR,"Parameters",,0x00000010
 HKR,"Parameters","RequestKey",0x00000000,%RequestKey%
+HKR,"Parameters","FrontendMaxQueues",0x00010001,0x00000008
 
 [XenVif_Inst.CoInstallers]
 CopyFiles=CoInst_CopyFiles