[ovs-dev] [PATCH v7] system-dpdk: add negotiation check for userspace-tso

Gowrishankar Muthukrishnan gmuthukr at redhat.com
Thu Jul 9 06:04:33 UTC 2020


This patch adds minimal check for userspace-tso in system-dpdk
tests, starting with verification on virtio negotiation.

Signed-off-by: Gowrishankar Muthukrishnan <gmuthukr at redhat.com>
---
v7:
 - fixed ovs stop log check for added tests.
 - test #8 is skipped using AT_ macro.

Sample test output:
## ------------------------------- ##
## openvswitch 2.13.90 test suite. ##
## ------------------------------- ##

OVS-DPDK unit tests

  1: OVS-DPDK - EAL init                             ok
  2: OVS-DPDK - add standard DPDK port               skipped (system-dpdk.at:36)
  3: OVS-DPDK - add vhost-user-client port           ok
  4: OVS-DPDK - ping vhost-user ports                ok
  5: OVS-DPDK - ping vhost-user-client ports         ok
  6: OVS-DPDK - validate negotiation when both ovs and testpmd have tso on ok
  7: OVS-DPDK - validate negotiation when ovs alone has tso on ok
  8: OVS-DPDK - validate negotiation when ovs alone has tso off skipped (system-dpdk.at:448)
  9: OVS-DPDK - validate negotiation when both ovs and testpmd have tso off ok

## ------------- ##
## Test results. ##
## ------------- ##

7 tests were successful.
2 tests were skipped.

---
 tests/system-dpdk-macros.at |  17 ++-
 tests/system-dpdk.at        | 301 +++++++++++++++++++++++++++++++++++++++++++-
 2 files changed, 309 insertions(+), 9 deletions(-)

diff --git a/tests/system-dpdk-macros.at b/tests/system-dpdk-macros.at
index c6708ca..9e55f10 100644
--- a/tests/system-dpdk-macros.at
+++ b/tests/system-dpdk-macros.at
@@ -33,13 +33,11 @@ m4_define([OVS_DPDK_PRE_PHY_SKIP],
 ])
 
 
-# OVS_DPDK_START()
+# OVS_DB_START()
 #
-# Create an empty database and start ovsdb-server. Add special configuration
-# dpdk-init to enable DPDK functionality. Start ovs-vswitchd connected to that
-# database using system devices (no dummies).
+# Create an empty database and start ovsdb-server.
 #
-m4_define([OVS_DPDK_START],
+m4_define([OVS_DB_START],
   [dnl Create database.
    AT_CHECK([touch .conf.db.~lock~])
    AT_CHECK([ovsdb-tool create conf.db $abs_top_srcdir/vswitchd/vswitch.ovsschema])
@@ -54,7 +52,16 @@ m4_define([OVS_DPDK_START],
 
    dnl Initialize database.
    AT_CHECK([ovs-vsctl --no-wait init])
+])
+
 
+# OVS_DPDK_START()
+#
+# Add special configuration dpdk-init to enable DPDK functionality.
+# Start ovs-vswitchd connected to that database using system devices (no dummies).
+#
+m4_define([OVS_DPDK_START],
+  [
    dnl Enable DPDK functionality
    AT_CHECK([ovs-vsctl --no-wait set Open_vSwitch . other_config:dpdk-init=true])
 
diff --git a/tests/system-dpdk.at b/tests/system-dpdk.at
index a015d52..ef03fb2 100644
--- a/tests/system-dpdk.at
+++ b/tests/system-dpdk.at
@@ -1,6 +1,11 @@
 m4_define([CONFIGURE_VETH_OFFLOADS],
    [AT_CHECK([ethtool -K $1 tx off], [0], [ignore], [ignore])])
 
+m4_define([SET_NUMA_NODE],
+   [
+    AT_CHECK([lscpu | awk '/NUMA node\(s\)/ {c=1; while (c++<$(3)) {printf "$1,"}; print "$1"}' > NUMA_NODE])
+])
+
 AT_BANNER([OVS-DPDK unit tests])
 
 dnl --------------------------------------------------------------------------
@@ -8,6 +13,7 @@ dnl Check if EAL init is successful
 AT_SETUP([OVS-DPDK - EAL init])
 AT_KEYWORDS([dpdk])
 OVS_DPDK_PRE_CHECK()
+OVS_DB_START()
 OVS_DPDK_START()
 AT_CHECK([grep "DPDK Enabled - initializing..." ovs-vswitchd.log], [], [stdout])
 AT_CHECK([grep "EAL" ovs-vswitchd.log], [], [stdout])
@@ -15,6 +21,7 @@ AT_CHECK([grep "DPDK Enabled - initialized" ovs-vswitchd.log], [], [stdout])
 OVS_VSWITCHD_STOP(["/Global register is changed during/d
 /EAL:   Invalid NUMA socket, default to 0/d
 /EAL: WARNING: cpu flags constant_tsc=yes nonstop_tsc=no -> using unreliable clock cycles !/d
+/EAL: No available hugepages reported in hugepages-1048576kB/d
 /EAL: No free hugepages reported in hugepages-1048576kB/d"])
 AT_CLEANUP
 dnl --------------------------------------------------------------------------
@@ -27,6 +34,7 @@ AT_SETUP([OVS-DPDK - add standard DPDK port])
 AT_KEYWORDS([dpdk])
 
 OVS_DPDK_PRE_PHY_SKIP()
+OVS_DB_START()
 OVS_DPDK_START()
 
 dnl Add userspace bridge and attach it to OVS
@@ -41,6 +49,7 @@ OVS_VSWITCHD_STOP("/does not exist. The Open vSwitch kernel module is probably n
 /Failed to enable flow control/d
 /Global register is changed during/d
 /EAL: WARNING: cpu flags constant_tsc=yes nonstop_tsc=no -> using unreliable clock cycles !/d
+/EAL: No available hugepages reported in hugepages-1048576kB/d
 /EAL: No free hugepages reported in hugepages-1048576kB/d
 ")
 AT_CLEANUP
@@ -53,6 +62,7 @@ dnl Add vhost-user-client port
 AT_SETUP([OVS-DPDK - add vhost-user-client port])
 AT_KEYWORDS([dpdk])
 OVS_DPDK_PRE_CHECK()
+OVS_DB_START()
 OVS_DPDK_START()
 
 dnl Add userspace bridge and attach it to OVS
@@ -74,6 +84,7 @@ OVS_VSWITCHD_STOP(["\@does not exist. The Open vSwitch kernel module is probably
 \@Global register is changed during at d
 \@EAL:   Invalid NUMA socket, default to 0 at d
 \@EAL: WARNING: cpu flags constant_tsc=yes nonstop_tsc=no -> using unreliable clock cycles !@d
+\@EAL: No available hugepages reported in hugepages-1048576kB at d
 \@EAL: No free hugepages reported in hugepages-1048576kB at d"])
 AT_CLEANUP
 dnl --------------------------------------------------------------------------
@@ -86,11 +97,11 @@ AT_SETUP([OVS-DPDK - ping vhost-user ports])
 AT_KEYWORDS([dpdk])
 OVS_DPDK_PRE_CHECK()
 AT_SKIP_IF([! which testpmd >/dev/null 2>/dev/null])
+OVS_DB_START()
 OVS_DPDK_START()
 
 dnl Find number of sockets
-AT_CHECK([lscpu], [], [stdout])
-AT_CHECK([cat stdout | grep "NUMA node(s)" | awk '{c=1; while (c++<$(3)) {printf "512,"}; print "512"}' > NUMA_NODE])
+SET_NUMA_NODE([512])
 
 dnl Add userspace bridge and attach it to OVS
 AT_CHECK([ovs-vsctl add-br br10 -- set bridge br10 datapath_type=netdev])
@@ -153,6 +164,7 @@ OVS_VSWITCHD_STOP(["\@does not exist. The Open vSwitch kernel module is probably
 \@failed to enumerate system datapaths: No such file or directory at d
 \@EAL:   Invalid NUMA socket, default to 0 at d
 \@EAL: WARNING: cpu flags constant_tsc=yes nonstop_tsc=no -> using unreliable clock cycles !@d
+\@EAL: No available hugepages reported in hugepages-1048576kB at d
 \@EAL: No free hugepages reported in hugepages-1048576kB at d"])
 AT_CLEANUP
 dnl --------------------------------------------------------------------------
@@ -163,11 +175,11 @@ AT_SETUP([OVS-DPDK - ping vhost-user-client ports])
 AT_KEYWORDS([dpdk])
 OVS_DPDK_PRE_CHECK()
 AT_SKIP_IF([! which testpmd >/dev/null 2>/dev/null])
+OVS_DB_START()
 OVS_DPDK_START()
 
 dnl Find number of sockets
-AT_CHECK([lscpu], [], [stdout])
-AT_CHECK([cat stdout | grep "NUMA node(s)" | awk '{c=1; while (c++<$(3)) {printf "512,"}; print "512"}' > NUMA_NODE])
+SET_NUMA_NODE([512])
 
 dnl Add userspace bridge and attach it to OVS
 AT_CHECK([ovs-vsctl add-br br10 -- set bridge br10 datapath_type=netdev])
@@ -229,6 +241,287 @@ OVS_VSWITCHD_STOP(["\@does not exist. The Open vSwitch kernel module is probably
 \@failed to enumerate system datapaths: No such file or directory at d
 \@EAL:   Invalid NUMA socket, default to 0 at d
 \@EAL: WARNING: cpu flags constant_tsc=yes nonstop_tsc=no -> using unreliable clock cycles !@d
+\@EAL: No available hugepages reported in hugepages-1048576kB at d
 \@EAL: No free hugepages reported in hugepages-1048576kB at d"])
 AT_CLEANUP
 dnl --------------------------------------------------------------------------
+
+dnl --------------------------------------------------------------------------
+dnl validate negotiation when both ovs and testpmd have tso on
+AT_SETUP([OVS-DPDK - validate negotiation when both ovs and testpmd have tso on])
+AT_KEYWORDS([dpdk])
+OVS_DPDK_PRE_CHECK()
+AT_SKIP_IF([! which testpmd >/dev/null 2>/dev/null])
+OVS_DB_START()
+AT_CHECK([ovs-vsctl --no-wait set Open_vSwitch . other_config:userspace-tso-enable=true])
+OVS_DPDK_START()
+AT_CHECK([grep -c 'Userspace TCP Segmentation Offloading support enabled' \
+          ovs-vswitchd.log],[ignore],[dnl
+1
+])
+dnl Find number of sockets
+SET_NUMA_NODE([512])
+
+dnl Add userspace bridge and attach it to OVS
+AT_CHECK([ovs-vsctl add-br br10 -- set bridge br10 datapath_type=netdev])
+
+dnl Add vhostuser port (client mode)
+AT_CHECK([ovs-vsctl add-port br10 dpdkvhostuserclient0 -- set Interface \
+          dpdkvhostuserclient0 \
+          type=dpdkvhostuserclient \
+          options:vhost-server-path=$OVS_RUNDIR/dpdkvhostclient0], [],
+         [stdout], [stderr])
+AT_CHECK([ovs-vsctl show], [], [stdout])
+
+dnl Execute testpmd in background
+on_exit "pkill -f -x -9 'tail -f /dev/null'"
+AT_CHECK([echo "show device info all" > CMDFILE])
+AT_CHECK([echo "stop" >> CMDFILE])
+AT_CHECK([echo "port stop 0" >> CMDFILE])
+AT_CHECK([echo "tso set 1500 0" >> CMDFILE])
+AT_CHECK([echo "csum set tcp hw 0" >> CMDFILE])
+AT_CHECK([echo "port start 0" >> CMDFILE])
+AT_CHECK([echo "start" >> CMDFILE])
+AT_CHECK([echo "show port 0 tx_offload capabilities" >> CMDFILE])
+AT_CHECK([echo "show port 0 tx_offload configuration" >> CMDFILE])
+tail -f /dev/null | testpmd --socket-mem="$(cat NUMA_NODE)" --no-pci\
+           --vdev="net_virtio_user,path=$OVS_RUNDIR/dpdkvhostclient0,server=1" \
+           --vdev="net_tap0,iface=tap0" --file-prefix page0 \
+           --single-file-segments -- --cmdline-file=CMDFILE \
+           -a >$OVS_RUNDIR/testpmd-dpdkvhostuserclient0.log 2>&1 &
+
+dnl Give settling time to the testpmd processes - NOTE: this is bad form.
+sleep 10
+
+dnl Clean up the testpmd now
+pkill -f -x -9 'tail -f /dev/null'
+sleep 1
+
+dnl Check whether TSO is turned on (host side)
+AT_CHECK([awk '/negotiated Virtio features/ {a=$NF} END{print a}' \
+           $OVS_RUNDIR/ovs-vswitchd.log],[],[stdout])
+AT_CHECK([printf "%X" $(( $(cat stdout) & ((1<<0)|(1<<11)|(1<<12)) ))],[],[1801])
+
+dnl Check whether TSO is turned on (guest side)
+AT_CHECK([awk 'BEGIN{n=0} /Port :/ && /TCP_CKSUM/ && /TCP_TSO/ {n++} END{printf n}' \
+           $OVS_RUNDIR/testpmd-dpdkvhostuserclient0.log],[0],[1])
+
+dnl Clean up
+AT_CHECK([ovs-vsctl del-port br10 dpdkvhostuserclient0], [], [stdout], [stderr])
+OVS_VSWITCHD_STOP(["
+\@EAL: No available hugepages reported in hugepages-1048576kB at d
+\@EAL:   Invalid NUMA socket, default to 0 at d
+\@VHOST_CONFIG: failed to connect to $OVS_RUNDIR/dpdkvhostclient0: No such file or directory at d
+"])
+AT_CLEANUP
+dnl --------------------------------------------------------------------------
+
+dnl --------------------------------------------------------------------------
+dnl validate negotiation when ovs alone has tso on
+AT_SETUP([OVS-DPDK - validate negotiation when ovs alone has tso on])
+AT_KEYWORDS([dpdk])
+OVS_DPDK_PRE_CHECK()
+AT_SKIP_IF([! which testpmd >/dev/null 2>/dev/null])
+OVS_DB_START()
+AT_CHECK([ovs-vsctl --no-wait set Open_vSwitch . other_config:userspace-tso-enable=true])
+OVS_DPDK_START()
+AT_CHECK([grep -c 'Userspace TCP Segmentation Offloading support enabled' \
+          ovs-vswitchd.log],[ignore],[dnl
+1
+])
+dnl Find number of sockets
+SET_NUMA_NODE([512])
+
+dnl Add userspace bridge and attach it to OVS
+AT_CHECK([ovs-vsctl add-br br10 -- set bridge br10 datapath_type=netdev])
+
+dnl Add vhostuser port (client mode)
+AT_CHECK([ovs-vsctl add-port br10 dpdkvhostuserclient0 -- set Interface \
+          dpdkvhostuserclient0 \
+          type=dpdkvhostuserclient \
+          options:vhost-server-path=$OVS_RUNDIR/dpdkvhostclient0], [],
+         [stdout], [stderr])
+AT_CHECK([ovs-vsctl show], [], [stdout])
+
+dnl Execute testpmd in background
+on_exit "pkill -f -x -9 'tail -f /dev/null'"
+AT_CHECK([echo "show device info all" > CMDFILE])
+AT_CHECK([echo "stop" >> CMDFILE])
+AT_CHECK([echo "port stop 0" >> CMDFILE])
+AT_CHECK([echo "port start 0" >> CMDFILE])
+AT_CHECK([echo "start" >> CMDFILE])
+AT_CHECK([echo "show port 0 tx_offload capabilities" >> CMDFILE])
+AT_CHECK([echo "show port 0 tx_offload configuration" >> CMDFILE])
+tail -f /dev/null | testpmd --socket-mem="$(cat NUMA_NODE)" --no-pci\
+           --vdev="net_virtio_user,path=$OVS_RUNDIR/dpdkvhostclient0,server=1" \
+           --vdev="net_tap0,iface=tap0" --file-prefix page0 \
+           --single-file-segments -- --cmdline-file=CMDFILE \
+           -a >$OVS_RUNDIR/testpmd-dpdkvhostuserclient0.log 2>&1 &
+
+dnl Give settling time to the testpmd processes - NOTE: this is bad form.
+sleep 10
+
+dnl Clean up the testpmd now
+pkill -f -x -9 'tail -f /dev/null'
+sleep 1
+
+dnl Check whether TSO is turned off (host side)
+AT_CHECK([awk '/negotiated Virtio features/ {a=$NF} END{print a}' \
+           $OVS_RUNDIR/ovs-vswitchd.log],[],[stdout])
+AT_CHECK([printf "%X" $(( $(cat stdout) & ((1<<0)|(1<<11)|(1<<12)) ))],[],[0])
+
+dnl Check whether TSO is turned off (guest side)
+AT_CHECK([awk 'BEGIN{n=0} /Port :/ && /TCP_CKSUM/ && /TCP_TSO/ {n++} END{printf n}' \
+           $OVS_RUNDIR/testpmd-dpdkvhostuserclient0.log],[0],[0])
+
+dnl Clean up
+AT_CHECK([ovs-vsctl del-port br10 dpdkvhostuserclient0], [], [stdout], [stderr])
+OVS_VSWITCHD_STOP(["
+\@EAL: No available hugepages reported in hugepages-1048576kB at d
+\@EAL:   Invalid NUMA socket, default to 0 at d
+\@VHOST_CONFIG: failed to connect to $OVS_RUNDIR/dpdkvhostclient0: No such file or directory at d
+"])
+AT_CLEANUP
+dnl --------------------------------------------------------------------------
+
+dnl --------------------------------------------------------------------------
+dnl validate negotiation when ovs alone has tso off
+AT_SETUP([OVS-DPDK - validate negotiation when ovs alone has tso off])
+AT_KEYWORDS([dpdk])
+OVS_DPDK_PRE_CHECK()
+AT_SKIP_IF([! which testpmd >/dev/null 2>/dev/null])
+OVS_DB_START()
+AT_CHECK([ovs-vsctl --no-wait set Open_vSwitch . other_config:userspace-tso-enable=false])
+OVS_DPDK_START()
+AT_CHECK([grep -c 'Userspace TCP Segmentation Offloading support enabled' \
+          ovs-vswitchd.log],[ignore],[dnl
+0
+])
+dnl Find number of sockets
+SET_NUMA_NODE([512])
+
+dnl Add userspace bridge and attach it to OVS
+AT_CHECK([ovs-vsctl add-br br10 -- set bridge br10 datapath_type=netdev])
+
+dnl Add vhostuser port (client mode)
+AT_CHECK([ovs-vsctl add-port br10 dpdkvhostuserclient0 -- set Interface \
+          dpdkvhostuserclient0 \
+          type=dpdkvhostuserclient \
+          options:vhost-server-path=$OVS_RUNDIR/dpdkvhostclient0], [],
+         [stdout], [stderr])
+AT_CHECK([ovs-vsctl show], [], [stdout])
+
+dnl Execute testpmd in background
+on_exit "pkill -f -x -9 'tail -f /dev/null'"
+AT_CHECK([echo "show device info all" > CMDFILE])
+AT_CHECK([echo "stop" >> CMDFILE])
+AT_CHECK([echo "port stop 0" >> CMDFILE])
+AT_CHECK([echo "tso set 1500 0" >> CMDFILE])
+AT_CHECK([echo "csum set tcp hw 0" >> CMDFILE])
+AT_CHECK([echo "port start 0" >> CMDFILE])
+AT_CHECK([echo "start" >> CMDFILE])
+AT_CHECK([echo "show port 0 tx_offload capabilities" >> CMDFILE])
+AT_CHECK([echo "show port 0 tx_offload configuration" >> CMDFILE])
+tail -f /dev/null | testpmd --socket-mem="$(cat NUMA_NODE)" --no-pci\
+           --vdev="net_virtio_user,path=$OVS_RUNDIR/dpdkvhostclient0,server=1" \
+           --vdev="net_tap0,iface=tap0" --file-prefix page0 \
+           --single-file-segments -- --cmdline-file=CMDFILE \
+           -a >$OVS_RUNDIR/testpmd-dpdkvhostuserclient0.log 2>&1 &
+
+dnl Give settling time to the testpmd processes - NOTE: this is bad form.
+sleep 10
+
+dnl Clean up the testpmd now
+pkill -f -x -9 'tail -f /dev/null'
+sleep 1
+
+dnl Check whether TSO is turned off (host side)
+AT_CHECK([awk '/negotiated Virtio features/ {a=$NF} END{print a}' \
+           $OVS_RUNDIR/ovs-vswitchd.log],[],[stdout])
+AT_CHECK([printf "%X" $(( $(cat stdout) & ((1<<0)|(1<<11)|(1<<12)) ))],[],[0])
+
+dnl Check whether TSO is turned off (guest side)
+dnl KNOWN BUG in dpdk/testpmd:
+dnl Once TSO is turned on in testpmd, at the same time TSO was off in OVS,
+dnl testpmd should not allow turning on TSO flag in driver. Testpmd needs to be
+dnl fixed.
+AT_SKIP_IF([awk 'BEGIN{n=0} /Port :/ && /TCP_CKSUM/ && /TCP_TSO/ {n++} END{printf n}' \
+           $OVS_RUNDIR/testpmd-dpdkvhostuserclient0.log],[0],[0])
+
+dnl Clean up
+AT_CHECK([ovs-vsctl del-port br10 dpdkvhostuserclient0], [], [stdout], [stderr])
+OVS_VSWITCHD_STOP(["
+\@EAL: No available hugepages reported in hugepages-1048576kB at d
+\@EAL:   Invalid NUMA socket, default to 0 at d
+\@VHOST_CONFIG: failed to connect to $OVS_RUNDIR/dpdkvhostclient0: No such file or directory at d
+"])
+AT_CLEANUP
+dnl --------------------------------------------------------------------------
+
+dnl --------------------------------------------------------------------------
+dnl validate negotiation when both ovs and testpmd have tso off
+AT_SETUP([OVS-DPDK - validate negotiation when both ovs and testpmd have tso off])
+AT_KEYWORDS([dpdk])
+OVS_DPDK_PRE_CHECK()
+AT_SKIP_IF([! which testpmd >/dev/null 2>/dev/null])
+OVS_DB_START()
+AT_CHECK([ovs-vsctl --no-wait set Open_vSwitch . other_config:userspace-tso-enable=false])
+OVS_DPDK_START()
+AT_CHECK([grep -c 'Userspace TCP Segmentation Offloading support enabled' \
+          ovs-vswitchd.log],[ignore],[dnl
+0
+])
+dnl Find number of sockets
+SET_NUMA_NODE([512])
+
+dnl Add userspace bridge and attach it to OVS
+AT_CHECK([ovs-vsctl add-br br10 -- set bridge br10 datapath_type=netdev])
+
+dnl Add vhostuser port (client mode)
+AT_CHECK([ovs-vsctl add-port br10 dpdkvhostuserclient0 -- set Interface \
+          dpdkvhostuserclient0 \
+          type=dpdkvhostuserclient \
+          options:vhost-server-path=$OVS_RUNDIR/dpdkvhostclient0], [],
+         [stdout], [stderr])
+AT_CHECK([ovs-vsctl show], [], [stdout])
+
+dnl Execute testpmd in background
+on_exit "pkill -f -x -9 'tail -f /dev/null'"
+AT_CHECK([echo "show device info all" > CMDFILE])
+AT_CHECK([echo "stop" >> CMDFILE])
+AT_CHECK([echo "port stop 0" >> CMDFILE])
+AT_CHECK([echo "port start 0" >> CMDFILE])
+AT_CHECK([echo "start" >> CMDFILE])
+AT_CHECK([echo "show port 0 tx_offload capabilities" >> CMDFILE])
+AT_CHECK([echo "show port 0 tx_offload configuration" >> CMDFILE])
+tail -f /dev/null | testpmd --socket-mem="$(cat NUMA_NODE)" --no-pci\
+           --vdev="net_virtio_user,path=$OVS_RUNDIR/dpdkvhostclient0,server=1" \
+           --vdev="net_tap0,iface=tap0" --file-prefix page0 \
+           --single-file-segments -- --cmdline-file=CMDFILE \
+           -a >$OVS_RUNDIR/testpmd-dpdkvhostuserclient0.log 2>&1 &
+
+dnl Give settling time to the testpmd processes - NOTE: this is bad form.
+sleep 10
+
+dnl Clean up the testpmd now
+pkill -f -x -9 'tail -f /dev/null'
+sleep 1
+
+dnl Check whether TSO is turned off (host side)
+AT_CHECK([awk '/negotiated Virtio features/ {a=$NF} END{print a}' \
+           $OVS_RUNDIR/ovs-vswitchd.log],[],[stdout])
+AT_CHECK([printf "%X" $(( $(cat stdout) & ((1<<0)|(1<<11)|(1<<12)) ))],[],[0])
+
+dnl Check whether TSO is turned off (guest side)
+AT_CHECK([awk 'BEGIN{n=0} /Port :/ && /TCP_CKSUM/ && /TCP_TSO/ {n++} END{printf n}' \
+           $OVS_RUNDIR/testpmd-dpdkvhostuserclient0.log],[0],[0])
+
+dnl Clean up
+AT_CHECK([ovs-vsctl del-port br10 dpdkvhostuserclient0], [], [stdout], [stderr])
+OVS_VSWITCHD_STOP(["
+\@EAL: No available hugepages reported in hugepages-1048576kB at d
+\@EAL:   Invalid NUMA socket, default to 0 at d
+\@VHOST_CONFIG: failed to connect to $OVS_RUNDIR/dpdkvhostclient0: No such file or directory at d
+"])
+AT_CLEANUP
+dnl --------------------------------------------------------------------------
-- 
1.8.3.1



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