* [dts][PATCH V1 3/3] tests/virtio_event_idx_interrupt_cbdma: add virtio_event_idx_interrupt_cbdma testsuite
@ 2022-05-07 9:22 Wei Ling
2022-05-09 2:37 ` Huang, ChenyuX
0 siblings, 1 reply; 3+ messages in thread
From: Wei Ling @ 2022-05-07 9:22 UTC (permalink / raw)
To: dts; +Cc: Wei Ling
Add new testsuite tests/TestSuite_virtio_event_idx_interrupt_cbdma.py into tests.
Signed-off-by: Wei Ling <weix.ling@intel.com>
---
...tSuite_virtio_event_idx_interrupt_cbdma.py | 375 ++++++++++++++++++
1 file changed, 375 insertions(+)
create mode 100644 tests/TestSuite_virtio_event_idx_interrupt_cbdma.py
diff --git a/tests/TestSuite_virtio_event_idx_interrupt_cbdma.py b/tests/TestSuite_virtio_event_idx_interrupt_cbdma.py
new file mode 100644
index 00000000..894cd7d6
--- /dev/null
+++ b/tests/TestSuite_virtio_event_idx_interrupt_cbdma.py
@@ -0,0 +1,375 @@
+# BSD LICENSE
+#
+# Copyright(c) <2022> Intel Corporation.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in
+# the documentation and/or other materials provided with the
+# distribution.
+# * Neither the name of Intel Corporation nor the names of its
+# contributors may be used to endorse or promote products derived
+# from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+"""
+DPDK Test suite.
+Virtio idx interrupt need test with l3fwd-power sample
+"""
+
+import _thread
+import re
+import time
+
+from framework.pktgen import PacketGeneratorHelper
+from framework.test_case import TestCase
+from framework.virt_common import VM
+from framework.pmd_output import PmdOutput
+
+
+class TestVirtioIdxInterruptCbdma(TestCase):
+
+ def set_up_all(self):
+ """
+ Run at the start of each test suite.
+ """
+ self.queues = 1
+ self.nb_cores = 1
+ self.dut_ports = self.dut.get_ports()
+ self.verify(len(self.dut_ports) >= 1, "Insufficient ports for testing")
+ self.ports_socket = self.dut.get_numa_id(self.dut_ports[0])
+ self.core_list = self.dut.get_core_list('all', socket=self.ports_socket)
+ self.core_list_vhost = self.core_list[0:17]
+ self.cores_num = len([n for n in self.dut.cores if int(n['socket'])== self.ports_socket])
+ self.dst_mac = self.dut.get_mac_address(self.dut_ports[0])
+ self.base_dir = self.dut.base_dir.replace('~', '/root')
+ self.pf_pci = self.dut.ports_info[0]['pci']
+ self.out_path = '/tmp'
+ out = self.tester.send_expect('ls -d %s' % self.out_path, '# ')
+ if 'No such file or directory' in out:
+ self.tester.send_expect('mkdir -p %s' % self.out_path, '# ')
+ # create an instance to set stream field setting
+ self.pktgen_helper = PacketGeneratorHelper()
+ self.app_testpmd_path = self.dut.apps_name['test-pmd']
+ self.testpmd_name = self.app_testpmd_path.split("/")[-1]
+ self.vhost_user = self.dut.new_session(suite="vhost-user")
+ self.vhost_pmd = PmdOutput(self.dut, self.vhost_user)
+
+ def set_up(self):
+ """
+ Run before each test case.
+ """
+ # Clean the execution ENV
+ self.flag = None
+ self.dut.send_expect("killall -s INT %s" % self.testpmd_name, "#")
+ self.dut.send_expect("killall -s INT qemu-system-x86_64", "#")
+ self.dut.send_expect("rm -rf %s/vhost-net*" % self.base_dir, "#")
+ self.vhost = self.dut.new_session(suite="vhost")
+
+ def get_core_mask(self):
+ self.core_config = "1S/%dC/1T" % (self.nb_cores + 1)
+ self.verify(self.cores_num >= (self.nb_cores + 1),"There has not enough cores to test this case %s" %self.running_case)
+ self.core_list = self.dut.get_core_list(self.core_config)
+
+ def get_cbdma_ports_info_and_bind_to_dpdk(self, cbdma_num, allow_diff_socket=False):
+ """
+ get all cbdma ports
+ """
+ self.all_cbdma_list = []
+ self.cbdma_list = []
+ self.cbdma_str = ""
+ out = self.dut.send_expect(
+ "./usertools/dpdk-devbind.py --status-dev dma", "# ", 30
+ )
+ device_info = out.split("\n")
+ for device in device_info:
+ pci_info = re.search("\s*(0000:\S*:\d*.\d*)", device)
+ if pci_info is not None:
+ dev_info = pci_info.group(1)
+ # the numa id of ioat dev, only add the device which on same socket with nic dev
+ bus = int(dev_info[5:7], base=16)
+ if bus >= 128:
+ cur_socket = 1
+ else:
+ cur_socket = 0
+ if allow_diff_socket:
+ self.all_cbdma_list.append(pci_info.group(1))
+ else:
+ if self.ports_socket == cur_socket:
+ self.all_cbdma_list.append(pci_info.group(1))
+ self.verify(
+ len(self.all_cbdma_list) >= cbdma_num, "There no enough cbdma device"
+ )
+ self.cbdma_list = self.all_cbdma_list[0:cbdma_num]
+ self.cbdma_str = " ".join(self.cbdma_list)
+ self.dut.send_expect(
+ "./usertools/dpdk-devbind.py --force --bind=%s %s"
+ % (self.drivername, self.cbdma_str),
+ "# ",
+ 60,
+ )
+
+ def bind_cbdma_device_to_kernel(self):
+ self.dut.send_expect('modprobe ioatdma', '# ')
+ self.dut.send_expect('./usertools/dpdk-devbind.py -u %s' % self.cbdma_str, '# ', 30)
+ self.dut.send_expect('./usertools/dpdk-devbind.py --force --bind=ioatdma %s' % self.cbdma_str, '# ', 60)
+
+ def start_vms(self, packed=False, mode=False, set_target=False, bind_dev=False):
+ """
+ start qemus
+ """
+ self.vm = VM(self.dut, 'vm0', 'vhost_sample')
+ vm_params = {}
+ vm_params['driver'] = 'vhost-user'
+ if mode:
+ vm_params['opt_path'] = '%s/vhost-net,%s' % (self.base_dir, mode)
+ else:
+ vm_params['opt_path'] = '%s/vhost-net' % self.base_dir
+ vm_params['opt_mac'] = "00:11:22:33:44:55"
+ opt_args = "mrg_rxbuf=on,csum=on,gso=on,guest_csum=on,host_tso4=on,guest_tso4=on"
+ if self.queues > 1:
+ vm_params['opt_queue'] = self.queues
+ opt_args = opt_args + ",mq=on,vectors=%d" % (2*self.queues + 2)
+ if packed:
+ opt_args = opt_args + ',packed=on'
+ vm_params['opt_settings'] = opt_args
+ self.vm.set_vm_device(**vm_params)
+ try:
+ self.vm_dut = self.vm.start(set_target=set_target, bind_dev=bind_dev)
+ if self.vm_dut is None:
+ raise Exception("Set up VM ENV failed")
+ except Exception as e:
+ self.logger.error("ERROR: Failure for %s" % str(e))
+
+ def config_virito_net_in_vm(self):
+ """
+ config ip for virtio net
+ set net for multi queues enable
+ """
+ self.vm_intf = self.vm_dut.ports_info[0]['intf']
+ self.vm_dut.send_expect("ifconfig %s down" % self.vm_intf, "#")
+ out = self.vm_dut.send_expect("ifconfig", "#")
+ self.verify(self.vm_intf not in out, "the virtio-pci down failed")
+ self.vm_dut.send_expect("ifconfig %s up" % self.vm_intf, "#")
+ if self.queues > 1:
+ self.vm_dut.send_expect("ethtool -L %s combined %d" %(self.vm_intf, self.queues), "#", 20)
+
+ def start_to_send_packets(self, delay):
+ """
+ start send packets
+ """
+ tgen_input = []
+ port = self.tester.get_local_port(self.dut_ports[0])
+ self.tester.scapy_append('a=[Ether(dst="%s")/IP(src="0.240.74.101",proto=255)/UDP()/("X"*18)]' % (self.dst_mac))
+ self.tester.scapy_append('wrpcap("%s/interrupt.pcap", a)' % self.out_path)
+ self.tester.scapy_execute()
+ tgen_input.append((port, port, "%s/interrupt.pcap" % self.out_path))
+ self.tester.pktgen.clear_streams()
+ fields_config = {'ip': {'dst': {'action': 'random'}, }, }
+ streams = self.pktgen_helper.prepare_stream_from_tginput(tgen_input, 1, fields_config, self.tester.pktgen)
+ traffic_opt = {'delay': 5, 'duration': delay, 'rate': 1}
+ _, self.flag = self.tester.pktgen.measure_throughput(stream_ids=streams, options=traffic_opt)
+
+ def check_packets_after_reload_virtio_device(self, reload_times):
+ """
+ start to send packets and check virtio net has receive packets
+ """
+ # ixia send packets times equal to reload_times * wait_times
+ start_time = time.time()
+ _thread.start_new_thread(self.start_to_send_packets, (reload_times*20,))
+ # wait the ixia begin to send packets
+ time.sleep(10)
+ self.vm_pci = self.vm_dut.ports_info[0]['pci']
+ # reload virtio device to check the virtio-net can receive packets
+ for i in range(reload_times+1):
+ if time.time() - start_time > reload_times*30:
+ self.logger.error("The ixia has stop to send packets, please change the delay time of ixia")
+ self.logger.info("The virtio device has reload %d times" % i)
+ return False
+ self.logger.info("The virtio net device reload %d times" % i)
+ self.vm_dut.send_expect("tcpdump -n -vv -i %s" % self.vm_intf, "tcpdump", 30)
+ time.sleep(5)
+ out = self.vm_dut.get_session_output(timeout=3)
+ self.vm_dut.send_expect("^c", "#", 30)
+ self.verify("ip-proto-255" in out, "The virtio device can not receive packets after reload %d times" % i)
+ time.sleep(2)
+ # reload virtio device
+ self.vm_dut.restore_interfaces()
+ time.sleep(3)
+ self.vm_dut.send_expect("ifconfig %s down" % self.vm_intf, "#")
+ self.vm_dut.send_expect("ifconfig %s up" % self.vm_intf, "#")
+ # wait ixia thread exit
+ self.logger.info("wait the thread of ixia to exit")
+ while(1):
+ if self.flag is not None:
+ break
+ time.sleep(5)
+ return True
+
+ def check_each_queue_has_packets_info_on_vhost(self):
+ """
+ check each queue has receive packets on vhost side
+ """
+ out = self.vhost_pmd.execute_cmd("stop")
+ print(out)
+ for queue_index in range(0, self.queues):
+ queue = re.search("Port= 0/Queue=\s*%d" % queue_index, out)
+ queue = queue.group()
+ index = out.find(queue)
+ rx = re.search("RX-packets:\s*(\d*)", out[index:])
+ tx = re.search("TX-packets:\s*(\d*)", out[index:])
+ rx_packets = int(rx.group(1))
+ tx_packets = int(tx.group(1))
+ self.verify(rx_packets > 0 and tx_packets > 0,
+ "The queue %d rx-packets or tx-packets is 0 about " %
+ queue_index + \
+ "rx-packets:%d, tx-packets:%d" %
+ (rx_packets, tx_packets))
+ self.vhost_pmd.execute_cmd("clear port stats all")
+
+ def stop_all_apps(self):
+ """
+ close all vms
+ """
+ self.vm.stop()
+ self.vhost.send_expect("quit", "#", 20)
+
+ def test_perf_split_ring_virito_pci_driver_reload_with_cbdma_enabled(self):
+ """
+ Test Case1: Split ring virtio-pci driver reload test with CBDMA enabled
+ """
+ self.get_cbdma_ports_info_and_bind_to_dpdk(1)
+ lcore_dma = "[lcore{}@{}]".format(self.core_list_vhost[1], self.cbdma_list[0])
+ vhost_param = "--nb-cores=1 --txd=1024 --rxd=1024 --lcore-dma={}".format(lcore_dma)
+ vhost_eal_param = "--vdev 'net_vhost,iface=vhost-net,queues=1,dmas=[txq0]'"
+ ports = self.cbdma_list
+ ports.append(self.dut.ports_info[0]['pci'])
+ self.vhost_pmd.start_testpmd(cores=self.core_list_vhost, ports=ports, prefix='vhost', eal_param=vhost_eal_param, param=vhost_param)
+ self.vhost_pmd.execute_cmd("start")
+ self.queues = 1
+ self.start_vms(packed=False)
+ self.config_virito_net_in_vm()
+ res = self.check_packets_after_reload_virtio_device(reload_times=100)
+ self.verify(res is True, "Should increase the wait times of ixia")
+ self.stop_all_apps()
+
+ def test_perf_wake_up_split_ring_virtio_net_cores_with_event_idx_interrupt_mode_and_cbdma_enabled_16queue(self):
+ """
+ Test Case2: Wake up split ring virtio-net cores with event idx interrupt mode and cbdma enabled 16 queues test
+ """
+ self.get_cbdma_ports_info_and_bind_to_dpdk(16, allow_diff_socket=True)
+ lcore_dma = f"[lcore{self.core_list_vhost[1]}@{self.cbdma_list[0]}," \
+ f"lcore{self.core_list[2]}@{self.cbdma_list[0]}," \
+ f"lcore{self.core_list[3]}@{self.cbdma_list[1]}," \
+ f"lcore{self.core_list[4]}@{self.cbdma_list[2]}," \
+ f"lcore{self.core_list[5]}@{self.cbdma_list[3]}," \
+ f"lcore{self.core_list[6]}@{self.cbdma_list[4]}," \
+ f"lcore{self.core_list[7]}@{self.cbdma_list[5]}," \
+ f"lcore{self.core_list[8]}@{self.cbdma_list[6]}," \
+ f"lcore{self.core_list[9]}@{self.cbdma_list[7]}," \
+ f"lcore{self.core_list[10]}@{self.cbdma_list[8]}," \
+ f"lcore{self.core_list[11]}@{self.cbdma_list[9]}," \
+ f"lcore{self.core_list[12]}@{self.cbdma_list[10]}," \
+ f"lcore{self.core_list[13]}@{self.cbdma_list[11]}," \
+ f"lcore{self.core_list[14]}@{self.cbdma_list[12]}," \
+ f"lcore{self.core_list[15]}@{self.cbdma_list[13]}," \
+ f"lcore{self.core_list[16]}@{self.cbdma_list[14]}," \
+ f"lcore{self.core_list[17]}@{self.cbdma_list[15]}]"
+ vhost_param = "--nb-cores=16 --txd=1024 --rxd=1024 --rxq=16 --txq=16 --lcore-dma={}".format(lcore_dma)
+ vhost_eal_param = "--vdev 'net_vhost,iface=vhost-net,queues=16,client=1,dmas=[txq0;txq1;txq2;txq3;txq4;txq5;txq6;txq7;txq8;txq9;txq10;txq11;txq12;txq13;txq14;txq15]'"
+ ports = self.cbdma_list
+ ports.append(self.dut.ports_info[0]['pci'])
+ self.vhost_pmd.start_testpmd(cores=self.core_list_vhost, ports=ports, prefix='vhost', eal_param=vhost_eal_param, param=vhost_param)
+ self.vhost_pmd.execute_cmd("start")
+ self.queues = 16
+ self.start_vms(packed=False, mode='server')
+ self.config_virito_net_in_vm()
+ self.start_to_send_packets(delay=15)
+ self.check_each_queue_has_packets_info_on_vhost()
+ self.stop_all_apps()
+
+ def test_perf_packed_ring_virito_pci_driver_reload_with_cbdma_enabled(self):
+ """
+ Test Case3: Packed ring virtio-pci driver reload test with CBDMA enabled
+ """
+ self.get_cbdma_ports_info_and_bind_to_dpdk(1)
+ lcore_dma = "[lcore{}@{}]".format(self.core_list_vhost[1], self.cbdma_list[0])
+ vhost_param = "--nb-cores=1 --txd=1024 --rxd=1024 --lcore-dma={}".format(lcore_dma)
+ vhost_eal_param = "--vdev 'net_vhost,iface=vhost-net,queues=1,dmas=[txq0]'"
+ ports = self.cbdma_list
+ ports.append(self.dut.ports_info[0]['pci'])
+ self.vhost_pmd.start_testpmd(cores=self.core_list_vhost, ports=ports, prefix='vhost', eal_param=vhost_eal_param,
+ param=vhost_param)
+ self.vhost_pmd.execute_cmd("start")
+ self.queues = 1
+ self.start_vms(packed=True)
+ self.config_virito_net_in_vm()
+ res = self.check_packets_after_reload_virtio_device(reload_times=100)
+ self.verify(res is True, "Should increase the wait times of ixia")
+ self.stop_all_apps()
+
+ def test_perf_wake_up_packed_ring_virtio_net_cores_with_event_idx_interrupt_mode_and_cbdma_enabled_16queue(self):
+ """
+ Test Case4: Wake up packed ring virtio-net cores with event idx interrupt mode and cbdma enabled 16 queues test
+ """
+ self.get_cbdma_ports_info_and_bind_to_dpdk(16, allow_diff_socket=True)
+ lcore_dma = f"[lcore{self.core_list_vhost[1]}@{self.cbdma_list[0]}," \
+ f"lcore{self.core_list[2]}@{self.cbdma_list[0]}," \
+ f"lcore{self.core_list[3]}@{self.cbdma_list[1]}," \
+ f"lcore{self.core_list[4]}@{self.cbdma_list[2]}," \
+ f"lcore{self.core_list[5]}@{self.cbdma_list[3]}," \
+ f"lcore{self.core_list[6]}@{self.cbdma_list[4]}," \
+ f"lcore{self.core_list[7]}@{self.cbdma_list[5]}," \
+ f"lcore{self.core_list[8]}@{self.cbdma_list[6]}," \
+ f"lcore{self.core_list[9]}@{self.cbdma_list[7]}," \
+ f"lcore{self.core_list[10]}@{self.cbdma_list[8]}," \
+ f"lcore{self.core_list[11]}@{self.cbdma_list[9]}," \
+ f"lcore{self.core_list[12]}@{self.cbdma_list[10]}," \
+ f"lcore{self.core_list[13]}@{self.cbdma_list[11]}," \
+ f"lcore{self.core_list[14]}@{self.cbdma_list[12]}," \
+ f"lcore{self.core_list[15]}@{self.cbdma_list[13]}," \
+ f"lcore{self.core_list[16]}@{self.cbdma_list[14]}," \
+ f"lcore{self.core_list[17]}@{self.cbdma_list[15]}]"
+ vhost_param = "--nb-cores=16 --txd=1024 --rxd=1024 --rxq=16 --txq=16 --lcore-dma={}".format(lcore_dma)
+ vhost_eal_param = "--vdev 'net_vhost,iface=vhost-net,queues=16,client=1,dmas=[txq0;txq1;txq2;txq3;txq4;txq5;txq6;txq7;txq8;txq9;txq10;txq11;txq12;txq13;txq14;txq15]'"
+ ports = self.cbdma_list
+ ports.append(self.dut.ports_info[0]['pci'])
+ self.vhost_pmd.start_testpmd(cores=self.core_list_vhost, ports=ports, prefix='vhost', eal_param=vhost_eal_param, param=vhost_param)
+ self.vhost_pmd.execute_cmd("start")
+ self.queues = 16
+ self.start_vms(packed=True, mode='server')
+ self.config_virito_net_in_vm()
+ self.start_to_send_packets(delay=15)
+ self.check_each_queue_has_packets_info_on_vhost()
+ self.stop_all_apps()
+
+ def tear_down(self):
+ """
+ Run after each test case.
+ """
+ self.dut.send_expect("killall -s INT %s" % self.testpmd_name, "#")
+ self.dut.send_expect("killall -s INT qemu-system-x86_64", "#")
+ self.bind_cbdma_device_to_kernel()
+
+ def tear_down_all(self):
+ """
+ Run after each test suite.
+ """
+ self.dut.close_session(self.vhost)
--
2.25.1
^ permalink raw reply [flat|nested] 3+ messages in thread* RE: [dts][PATCH V1 3/3] tests/virtio_event_idx_interrupt_cbdma: add virtio_event_idx_interrupt_cbdma testsuite
2022-05-07 9:22 [dts][PATCH V1 3/3] tests/virtio_event_idx_interrupt_cbdma: add virtio_event_idx_interrupt_cbdma testsuite Wei Ling
@ 2022-05-09 2:37 ` Huang, ChenyuX
2022-05-09 9:01 ` He, Xingguang
0 siblings, 1 reply; 3+ messages in thread
From: Huang, ChenyuX @ 2022-05-09 2:37 UTC (permalink / raw)
To: Ling, WeiX, dts; +Cc: Ling, WeiX
> -----Original Message-----
> From: Wei Ling <weix.ling@intel.com>
> Sent: Saturday, May 7, 2022 5:23 PM
> To: dts@dpdk.org
> Cc: Ling, WeiX <weix.ling@intel.com>
> Subject: [dts][PATCH V1 3/3] tests/virtio_event_idx_interrupt_cbdma: add
> virtio_event_idx_interrupt_cbdma testsuite
Tested-by: Chenyu Huang <chenyux.huang@intel.com>
^ permalink raw reply [flat|nested] 3+ messages in thread
* RE: [dts][PATCH V1 3/3] tests/virtio_event_idx_interrupt_cbdma: add virtio_event_idx_interrupt_cbdma testsuite
2022-05-09 2:37 ` Huang, ChenyuX
@ 2022-05-09 9:01 ` He, Xingguang
0 siblings, 0 replies; 3+ messages in thread
From: He, Xingguang @ 2022-05-09 9:01 UTC (permalink / raw)
To: Huang, ChenyuX, Ling, WeiX, dts; +Cc: Ling, WeiX
> -----Original Message-----
> From: Huang, ChenyuX <chenyux.huang@intel.com>
> Sent: Monday, May 9, 2022 10:38 AM
> To: Ling, WeiX <weix.ling@intel.com>; dts@dpdk.org
> Cc: Ling, WeiX <weix.ling@intel.com>
> Subject: RE: [dts][PATCH V1 3/3] tests/virtio_event_idx_interrupt_cbdma:
> add virtio_event_idx_interrupt_cbdma testsuite
>
> > -----Original Message-----
> > From: Wei Ling <weix.ling@intel.com>
> > Sent: Saturday, May 7, 2022 5:23 PM
> > To: dts@dpdk.org
> > Cc: Ling, WeiX <weix.ling@intel.com>
> > Subject: [dts][PATCH V1 3/3] tests/virtio_event_idx_interrupt_cbdma:
> > add virtio_event_idx_interrupt_cbdma testsuite
>
> Tested-by: Chenyu Huang <chenyux.huang@intel.com>
Acked-by: Xingguang He<xingguang.he@intel.com>
^ permalink raw reply [flat|nested] 3+ messages in thread
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2022-05-07 9:22 [dts][PATCH V1 3/3] tests/virtio_event_idx_interrupt_cbdma: add virtio_event_idx_interrupt_cbdma testsuite Wei Ling
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2022-05-09 9:01 ` He, Xingguang
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