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authorpmikus <pmikus@cisco.com>2016-09-10 08:36:10 +0100
committerPeter Mikus <pmikus@cisco.com>2016-09-15 16:23:29 +0000
commite9ce3e7fe123c7ed6847e7d615b0e963429b0298 (patch)
tree2b918fde940a56485f7b7f1835cf0191b4b7e8a9 /resources/libraries/python/DpdkUtil.py
parent6d104077b5a6a8a0595001ecf051f63c651c131e (diff)
CSIT-404 Adjust DPDK testpmd startup parameters
Change-Id: If0f58e725e15aa01b61bc43b222c6254af9cd07e Signed-off-by: pmikus <pmikus@cisco.com>
Diffstat (limited to 'resources/libraries/python/DpdkUtil.py')
-rw-r--r--resources/libraries/python/DpdkUtil.py28
1 files changed, 17 insertions, 11 deletions
diff --git a/resources/libraries/python/DpdkUtil.py b/resources/libraries/python/DpdkUtil.py
index e7727c1101..a81251c97b 100644
--- a/resources/libraries/python/DpdkUtil.py
+++ b/resources/libraries/python/DpdkUtil.py
@@ -19,6 +19,7 @@ from resources.libraries.python.ssh import SSH, exec_cmd_no_error
class DpdkUtil(object):
"""Utilities for DPDK."""
+ #pylint: disable=too-many-locals
@staticmethod
def dpdk_testpmd_start(node, **args):
"""Start DPDK testpmd app on VM node.
@@ -32,6 +33,8 @@ class DpdkUtil(object):
# Set the hexadecimal bitmask of the cores to run on.
eal_coremask = '-c {} '.format(args['eal_coremask'])\
if args.get('eal_coremask', '') else ''
+ # Set master core.
+ eal_master_core = '--master-lcore 0 '
# Set the number of memory channels to use.
eal_mem_channels = '-n {} '.format(args['eal_mem_channels'])\
if args.get('eal_mem_channels', '') else ''
@@ -47,15 +50,21 @@ class DpdkUtil(object):
# Set the number of packets per burst to N.
pmd_burst = '--burst=64 '
# Set the number of descriptors in the TX rings to N.
- pmd_txd = '--txd=2048 '
+ pmd_txd = '--txd=256 '
# Set the number of descriptors in the RX rings to N.
- pmd_rxd = '--rxd=2048 '
+ pmd_rxd = '--rxd=256 '
+ # Set the number of queues in the TX to N.
+ pmd_txq = '--txq=1 '
+ # Set the number of queues in the RX to N.
+ pmd_rxq = '--rxq=1 '
# Set the hexadecimal bitmask of TX queue flags.
pmd_txqflags = '--txqflags=0xf00 '
# Set the number of mbufs to be allocated in the mbuf pools.
- pmd_total_num_mbufs = '--total-num-mbufs=65536 '
+ pmd_total_num_mbufs = '--total-num-mbufs={} '.format(\
+ args['pmd_num_mbufs']) if args.get('pmd_num_mbufs', '') else ''
# Set the hexadecimal bitmask of the ports for forwarding.
- pmd_portmask = '--portmask=0x3 '
+ pmd_portmask = '--portmask={} '.format(args['pmd_portmask'])\
+ if args.get('pmd_portmask', '') else ''
# Disable hardware VLAN.
pmd_disable_hw_vlan = '--disable-hw-vlan '\
if args.get('pmd_disable_hw_vlan', '') else ''
@@ -67,17 +76,13 @@ class DpdkUtil(object):
if args.get('pmd_eth_peer_0', '') else ''
pmd_eth_peer_1 = '--eth-peer={} '.format(args['pmd_eth_peer_1'])\
if args.get('pmd_eth_peer_1', '') else ''
- # Set the hexadecimal bitmask of the cores running forwarding. Master
- # lcore=0 is reserved, so highest bit is set to 0.
- pmd_coremask = '--coremask={} '.format(\
- hex(int(args['eal_coremask'], 0) & 0xFFFE))\
- if args.get('eal_coremask', '') else ''
# Set the number of forwarding cores based on coremask.
pmd_nb_cores = '--nb-cores={} '.format(\
- bin(int(args['eal_coremask'], 0) & 0xFFFE).count('1'))\
+ bin(int(args['eal_coremask'], 0)).count('1')-1)\
if args.get('eal_coremask', '') else ''
eal_options = '-v '\
+ eal_coremask\
+ + eal_master_core\
+ eal_mem_channels\
+ eal_socket_mem\
+ eal_driver
@@ -86,6 +91,8 @@ class DpdkUtil(object):
+ pmd_burst\
+ pmd_txd\
+ pmd_rxd\
+ + pmd_txq\
+ + pmd_rxq\
+ pmd_txqflags\
+ pmd_total_num_mbufs\
+ pmd_portmask\
@@ -93,7 +100,6 @@ class DpdkUtil(object):
+ pmd_disable_rss\
+ pmd_eth_peer_0\
+ pmd_eth_peer_1\
- + pmd_coremask\
+ pmd_nb_cores
ssh = SSH()
ssh.connect(node)