[libvirt] [PATCH] 8021Qbh: use preassociate-rr during the migration prepare stage
From: Roopa Prabhu <roprabhu(a)cisco.com>
This patch introduces PREASSOCIATE-RR during incoming VM migration on the
destination host. This is similar to the usage of PREASSOCIATE during
migration in 8021qbg libvirt code today. PREASSOCIATE-RR is a VDP operation.
With the latest at IEEE, 8021qbh will need to support VDP operations.
A corresponding enic driver patch to support PREASSOCIATE-RR for 8021qbh
will be posted for net-next-2.6 inclusion soon.
Signed-off-by: Roopa Prabhu <roprabhu(a)cisco.com>
Signed-off-by: David Wang <dwang2(a)cisco.com>
Signed-off-by: Christian Benvenuti <benve(a)cisco.com>
---
src/util/macvtap.c | 15 ++++++++++-----
1 files changed, 10 insertions(+), 5 deletions(-)
diff --git a/src/util/macvtap.c b/src/util/macvtap.c
index 2d3ff87..346eaf6 100644
--- a/src/util/macvtap.c
+++ b/src/util/macvtap.c
@@ -87,6 +87,7 @@ enum virVirtualPortOp {
ASSOCIATE = 0x1,
DISASSOCIATE = 0x2,
PREASSOCIATE = 0x3,
+ PREASSOCIATE_RR = 0x4,
};
@@ -1452,6 +1453,7 @@ doPortProfileOp8021Qbh(const char *ifname,
}
switch (virtPortOp) {
+ case PREASSOCIATE_RR:
case ASSOCIATE:
rc = virGetHostUUID(hostuuid);
if (rc)
@@ -1465,7 +1467,9 @@ doPortProfileOp8021Qbh(const char *ifname,
vm_uuid,
hostuuid,
vf,
- PORT_REQUEST_ASSOCIATE);
+ (virtPortOp == PREASSOCIATE_RR) ?
+ PORT_REQUEST_PREASSOCIATE_RR
+ : PORT_REQUEST_ASSOCIATE);
if (rc == -ETIMEDOUT)
/* Association timed out, disassociate */
doPortProfileOpCommon(nltarget_kernel, NULL, ifindex,
@@ -1553,10 +1557,11 @@ vpAssociatePortProfileId(const char *macvtap_ifname,
break;
case VIR_VIRTUALPORT_8021QBH:
- /* avoid associating twice */
- if (vmOp != VIR_VM_OP_MIGRATE_IN_FINISH)
- rc = doPortProfileOp8021Qbh(linkdev, macvtap_macaddr,
- virtPort, vmuuid, ASSOCIATE);
+ rc = doPortProfileOp8021Qbh(linkdev, macvtap_macaddr,
+ virtPort, vmuuid,
+ (vmOp == VIR_VM_OP_MIGRATE_IN_START)
+ ? PREASSOCIATE_RR
+ : ASSOCIATE);
if (vmOp != VIR_VM_OP_MIGRATE_IN_START && !rc)
ifaceUp(linkdev);
break;