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-rw-r--r--vnfs/qemu/qemu.py9
-rw-r--r--vnfs/qemu/qemu_dpdk_vhost_user.py7
2 files changed, 15 insertions, 1 deletions
diff --git a/vnfs/qemu/qemu.py b/vnfs/qemu/qemu.py
index 997f93e0..a9ce176a 100644
--- a/vnfs/qemu/qemu.py
+++ b/vnfs/qemu/qemu.py
@@ -387,6 +387,9 @@ class IVnfQemu(IVnf):
# get testpmd settings from CLI
testpmd_params = S.getValue('GUEST_TESTPMD_PARAMS')[self._number]
+ if S.getValue('VSWITCH_JUMBO_FRAMES_ENABLED'):
+ testpmd_params += ' --max-pkt-len={}'.format(S.getValue(
+ 'VSWITCH_JUMBO_FRAMES_SIZE'))
self.execute_and_wait('./testpmd {}'.format(testpmd_params), 60, "Done")
self.execute('set fwd ' + self._testpmd_fwd_mode, 1)
@@ -405,6 +408,9 @@ class IVnfQemu(IVnf):
for nic in self._nics:
self.execute('ip addr add ' +
nic['ip'] + ' dev ' + nic['device'])
+ if S.getValue('VSWITCH_JUMBO_FRAMES_ENABLED'):
+ self.execute('ifconfig {} mtu {}'.format(
+ nic['device'], S.getValue('VSWITCH_JUMBO_FRAMES_SIZE')))
self.execute('ip link set dev ' + nic['device'] + ' up')
# build and configure system for l2fwd
@@ -436,6 +442,9 @@ class IVnfQemu(IVnf):
for nic in self._nics:
self.execute('ip addr add ' +
nic['ip'] + ' dev ' + nic['device'])
+ if S.getValue('VSWITCH_JUMBO_FRAMES_ENABLED'):
+ self.execute('ifconfig {} mtu {}'.format(
+ nic['device'], S.getValue('VSWITCH_JUMBO_FRAMES_SIZE')))
self.execute('ip link set dev ' + nic['device'] + ' up')
self.execute('brctl addif br0 ' + nic['device'])
diff --git a/vnfs/qemu/qemu_dpdk_vhost_user.py b/vnfs/qemu/qemu_dpdk_vhost_user.py
index f09ded13..3e9aecc8 100644
--- a/vnfs/qemu/qemu_dpdk_vhost_user.py
+++ b/vnfs/qemu/qemu_dpdk_vhost_user.py
@@ -41,7 +41,12 @@ class QemuDpdkVhostUser(IVnfQemu):
# Guest merge buffer setting
if S.getValue('GUEST_NIC_MERGE_BUFFERS_DISABLE')[self._number]:
- merge_buff = 'mrg_rxbuf=off,'
+ if S.getValue('VSWITCH_JUMBO_FRAMES_ENABLED'):
+ self._logger.warning(
+ 'Mergable buffers must be enabled for jumbo frames. Overriding.')
+ merge_buff = ''
+ else:
+ merge_buff = 'mrg_rxbuf=off,'
else:
merge_buff = ''