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authorPeter Mikus <pmikus@cisco.com>2019-10-15 08:13:29 +0000
committerPeter Mikus <pmikus@cisco.com>2019-10-25 07:22:06 +0000
commit909a91c2a2b08a85d700542a77f8b69434f5ded1 (patch)
treebf141badf8627cb7cf04ef38952f2e9465173478 /resources/libraries/python/InterfaceUtil.py
parentac89ba8a39355a4a761508870ea0e08212ef7aee (diff)
ADD: Mellanox RDMA interface support
+ Add functions for creating rdma interface + Fix traffic generator Signed-off-by: Peter Mikus <pmikus@cisco.com> Change-Id: I81787b72ff5ee926ed652d350888c4f86da766f1
Diffstat (limited to 'resources/libraries/python/InterfaceUtil.py')
-rw-r--r--resources/libraries/python/InterfaceUtil.py57
1 files changed, 54 insertions, 3 deletions
diff --git a/resources/libraries/python/InterfaceUtil.py b/resources/libraries/python/InterfaceUtil.py
index 1d1d669556..d185137940 100644
--- a/resources/libraries/python/InterfaceUtil.py
+++ b/resources/libraries/python/InterfaceUtil.py
@@ -125,6 +125,25 @@ class InterfaceUtil(object):
int(pci[2], 16) << 24 | int(pci[3], 16) << 29)
@staticmethod
+ def pci_to_eth(node, pci_str):
+ """Convert PCI address to Linux ethernet name.
+
+ :param pci_str: PCI address.
+ :type pci_str: str
+ :returns: Ethernet name.
+ :rtype: str
+ """
+ cmd = ('basename /sys/bus/pci/devices/{pci_str}/net/*'.
+ format(pci_str=pci_str))
+ try:
+ stdout, _ = exec_cmd_no_error(node, cmd)
+ except RuntimeError:
+ raise RuntimeError("Cannot convert {pci_str} to ethernet name!".
+ format(pci_str=pci_str))
+
+ return stdout.strip()
+
+ @staticmethod
def get_interface_index(node, interface):
"""Get interface sw_if_index from topology file.
@@ -1170,7 +1189,7 @@ class InterfaceUtil(object):
"""Create AVF interface on VPP node.
:param node: DUT node from topology.
- :param vf_pci_addr: Virtual Function PCI address.
+ :param vf_pci_addr: PCI address binded to i40evf driver.
:param num_rx_queues: Number of RX queues.
:type node: dict
:type vf_pci_addr: str
@@ -1191,8 +1210,40 @@ class InterfaceUtil(object):
with PapiSocketExecutor(node) as papi_exec:
sw_if_index = papi_exec.add(cmd, **args).get_sw_if_index(err_msg)
- InterfaceUtil.add_eth_interface(node, sw_if_index=sw_if_index,
- ifc_pfx='eth_avf')
+ InterfaceUtil.add_eth_interface(
+ node, sw_if_index=sw_if_index, ifc_pfx='eth_avf')
+ if_key = Topology.get_interface_by_sw_index(node, sw_if_index)
+
+ return if_key
+
+ @staticmethod
+ def vpp_create_rdma_interface(node, pci_addr, num_rx_queues=None):
+ """Create RDMA interface on VPP node.
+
+ :param node: DUT node from topology.
+ :param pci_addr: PCI address binded to rdma-core driver.
+ :param num_rx_queues: Number of RX queues.
+ :type node: dict
+ :type pci_addr: str
+ :type num_rx_queues: int
+ :returns: Interface key (name) in topology.
+ :rtype: str
+ :raises RuntimeError: If it is not possible to create RDMA interface on
+ the node.
+ """
+ cmd = 'rdma_create'
+ args = dict(name=InterfaceUtil.pci_to_eth(node, pci_addr),
+ host_if=InterfaceUtil.pci_to_eth(node, pci_addr),
+ rxq_num=int(num_rx_queues) if num_rx_queues else 0,
+ rxq_size=0,
+ txq_size=0)
+ err_msg = 'Failed to create RDMA interface on host {host}'.format(
+ host=node['host'])
+ with PapiSocketExecutor(node) as papi_exec:
+ sw_if_index = papi_exec.add(cmd, **args).get_sw_if_index(err_msg)
+
+ InterfaceUtil.add_eth_interface(
+ node, sw_if_index=sw_if_index, ifc_pfx='eth_rdma')
if_key = Topology.get_interface_by_sw_index(node, sw_if_index)
return if_key