From: Laurent Vivier <lvivier@redhat.com>
To: passt-dev@passt.top
Cc: Laurent Vivier <lvivier@redhat.com>
Subject: [PATCH v2 6/6] test: Add multiqueue support to vhost-user test infrastructure
Date: Fri, 21 Nov 2025 17:59:02 +0100 [thread overview]
Message-ID: <20251121165902.1014964-7-lvivier@redhat.com> (raw)
In-Reply-To: <20251121165902.1014964-1-lvivier@redhat.com>
With the recent addition of multiqueue support to passt's vhost-user
implementation, we need test coverage to validate the functionality. The
test infrastructure previously only tested single queue configurations.
Add a VHOST_USER_MQ environment variable to control the number of queue
pairs. When set to values greater than 1, the setup scripts pass
--max-qpairs to passt and configure QEMU's vhost-user netdev with the
corresponding queues= parameter.
The test suite now runs an additional set of tests with 8 queue pairs to
exercise the multiqueue paths across all protocols (TCP, UDP, ICMP) and
services (DHCP, NDP). Note that the guest kernel will only enable as many
queues as there are vCPUs.
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
---
test/lib/setup | 58 +++++++++++++++++++++++++++++++++++++++-----------
test/run | 23 ++++++++++++++++++++
2 files changed, 69 insertions(+), 12 deletions(-)
diff --git a/test/lib/setup b/test/lib/setup
index 5994598744a3..2af34d670473 100755
--- a/test/lib/setup
+++ b/test/lib/setup
@@ -18,6 +18,8 @@ VCPUS="$( [ $(nproc) -ge 8 ] && echo 6 || echo $(( $(nproc) / 2 + 1 )) )"
MEM_KIB="$(sed -n 's/MemTotal:[ ]*\([0-9]*\) kB/\1/p' /proc/meminfo)"
QEMU_ARCH="$(uname -m)"
[ "${QEMU_ARCH}" = "i686" ] && QEMU_ARCH=i386
+VHOST_USER=0
+VHOST_USER_MQ=1
# setup_build() - Set up pane layout for build tests
setup_build() {
@@ -45,7 +47,8 @@ setup_passt() {
[ ${PCAP} -eq 1 ] && __opts="${__opts} -p ${LOGDIR}/passt.pcap"
[ ${DEBUG} -eq 1 ] && __opts="${__opts} -d"
[ ${TRACE} -eq 1 ] && __opts="${__opts} --trace"
- [ ${VHOST_USER} -eq 1 ] && __opts="${__opts} --vhost-user"
+ [ ${VHOST_USER} -eq 1 ] && __opts="${__opts} --vhost-user" && \
+ [ ${VHOST_USER_MQ} -gt 1 ] && __opts="${__opts} --max-qpairs ${VHOST_USER_MQ}"
context_run passt "make clean"
context_run passt "make valgrind"
@@ -59,10 +62,18 @@ setup_passt() {
__vmem="$(((${__vmem} + 500) / 1000))G"
__qemu_netdev=" \
-chardev socket,id=c,path=${STATESETUP}/passt.socket \
- -netdev vhost-user,id=v,chardev=c \
- -device virtio-net,netdev=v \
-object memory-backend-memfd,id=m,share=on,size=${__vmem} \
-numa node,memdev=m"
+
+ if [ ${VHOST_USER_MQ} -gt 1 ]; then
+ __qemu_netdev="${__qemu_netdev} \
+ -device virtio-net,netdev=v,mq=true \
+ -netdev vhost-user,id=v,chardev=c,queues=${VHOST_USER_MQ}"
+ else
+ __qemu_netdev="${__qemu_netdev} \
+ -device virtio-net,netdev=v \
+ -netdev vhost-user,id=v,chardev=c"
+ fi
else
__qemu_netdev="-device virtio-net-pci,netdev=s \
-netdev stream,id=s,server=off,addr.type=unix,addr.path=${STATESETUP}/passt.socket"
@@ -155,7 +166,8 @@ setup_passt_in_ns() {
[ ${PCAP} -eq 1 ] && __opts="${__opts} -p ${LOGDIR}/passt_in_pasta.pcap"
[ ${DEBUG} -eq 1 ] && __opts="${__opts} -d"
[ ${TRACE} -eq 1 ] && __opts="${__opts} --trace"
- [ ${VHOST_USER} -eq 1 ] && __opts="${__opts} --vhost-user"
+ [ ${VHOST_USER} -eq 1 ] && __opts="${__opts} --vhost-user" && \
+ [ ${VHOST_USER_MQ} -gt 1 ] && __opts="${__opts} --max-qpairs ${VHOST_USER_MQ}"
if [ ${VALGRIND} -eq 1 ]; then
context_run passt "make clean"
@@ -173,10 +185,18 @@ setup_passt_in_ns() {
__vmem="$(((${__vmem} + 500) / 1000))G"
__qemu_netdev=" \
-chardev socket,id=c,path=${STATESETUP}/passt.socket \
- -netdev vhost-user,id=v,chardev=c \
- -device virtio-net,netdev=v \
-object memory-backend-memfd,id=m,share=on,size=${__vmem} \
-numa node,memdev=m"
+
+ if [ ${VHOST_USER_MQ} -gt 1 ]; then
+ __qemu_netdev="${__qemu_netdev} \
+ -device virtio-net,netdev=v,mq=true \
+ -netdev vhost-user,id=v,chardev=c,queues=${VHOST_USER_MQ}"
+ else
+ __qemu_netdev="${__qemu_netdev} \
+ -device virtio-net,netdev=v \
+ -netdev vhost-user,id=v,chardev=c"
+ fi
else
__qemu_netdev="-device virtio-net-pci,netdev=s \
-netdev stream,id=s,server=off,addr.type=unix,addr.path=${STATESETUP}/passt.socket"
@@ -241,7 +261,8 @@ setup_two_guests() {
[ ${PCAP} -eq 1 ] && __opts="${__opts} -p ${LOGDIR}/passt_1.pcap"
[ ${DEBUG} -eq 1 ] && __opts="${__opts} -d"
[ ${TRACE} -eq 1 ] && __opts="${__opts} --trace"
- [ ${VHOST_USER} -eq 1 ] && __opts="${__opts} --vhost-user"
+ [ ${VHOST_USER} -eq 1 ] && __opts="${__opts} --vhost-user" && \
+ [ ${VHOST_USER_MQ} -gt 1 ] && __opts="${__opts} --max-qpairs ${VHOST_USER_MQ}"
context_run_bg passt_1 "./passt -s ${STATESETUP}/passt_1.socket -P ${STATESETUP}/passt_1.pid -f ${__opts} --fqdn fqdn1.passt.test -H hostname1 -t 10001 -u 10001"
wait_for [ -f "${STATESETUP}/passt_1.pid" ]
@@ -250,7 +271,8 @@ setup_two_guests() {
[ ${PCAP} -eq 1 ] && __opts="${__opts} -p ${LOGDIR}/passt_2.pcap"
[ ${DEBUG} -eq 1 ] && __opts="${__opts} -d"
[ ${TRACE} -eq 1 ] && __opts="${__opts} --trace"
- [ ${VHOST_USER} -eq 1 ] && __opts="${__opts} --vhost-user"
+ [ ${VHOST_USER} -eq 1 ] && __opts="${__opts} --vhost-user" && \
+ [ ${VHOST_USER_MQ} -gt 1 ] && __opts="${__opts} --max-qpairs ${VHOST_USER_MQ}"
context_run_bg passt_2 "./passt -s ${STATESETUP}/passt_2.socket -P ${STATESETUP}/passt_2.pid -f ${__opts} --hostname hostname2 --fqdn fqdn2 -t 10004 -u 10004"
wait_for [ -f "${STATESETUP}/passt_2.pid" ]
@@ -260,16 +282,28 @@ setup_two_guests() {
__vmem="$(((${__vmem} + 500) / 1000))G"
__qemu_netdev1=" \
-chardev socket,id=c,path=${STATESETUP}/passt_1.socket \
- -netdev vhost-user,id=v,chardev=c \
- -device virtio-net,netdev=v \
-object memory-backend-memfd,id=m,share=on,size=${__vmem} \
-numa node,memdev=m"
__qemu_netdev2=" \
-chardev socket,id=c,path=${STATESETUP}/passt_2.socket \
- -netdev vhost-user,id=v,chardev=c \
- -device virtio-net,netdev=v \
-object memory-backend-memfd,id=m,share=on,size=${__vmem} \
-numa node,memdev=m"
+
+ if [ ${VHOST_USER_MQ} -gt 1 ]; then
+ __qemu_netdev1="${__qemu_netdev1} \
+ -device virtio-net,netdev=v,mq=true \
+ -netdev vhost-user,id=v,chardev=c,queues=${VHOST_USER_MQ}"
+ __qemu_netdev2="${__qemu_netdev2} \
+ -device virtio-net,netdev=v,mq=true \
+ -netdev vhost-user,id=v,chardev=c,queues=${VHOST_USER_MQ}"
+ else
+ __qemu_netdev1="${__qemu_netdev1} \
+ -device virtio-net,netdev=v \
+ -netdev vhost-user,id=v,chardev=c"
+ __qemu_netdev2="${__qemu_netdev2} \
+ -device virtio-net,netdev=v \
+ -netdev vhost-user,id=v,chardev=c"
+ fi
else
__qemu_netdev1="-device virtio-net-pci,netdev=s \
-netdev stream,id=s,server=off,addr.type=unix,addr.path=${STATESETUP}/passt_1.socket"
diff --git a/test/run b/test/run
index f858e5586847..652cc12b1234 100755
--- a/test/run
+++ b/test/run
@@ -190,6 +190,29 @@ run() {
test passt_vu_in_ns/shutdown
teardown passt_in_ns
+ VHOST_USER=1
+ VHOST_USER_MQ=8
+ setup passt_in_ns
+ test passt_vu/ndp
+ test passt_vu_in_ns/dhcp
+ test passt_vu_in_ns/icmp
+ test passt_vu_in_ns/tcp
+ test passt_vu_in_ns/udp
+ test passt_vu_in_ns/shutdown
+ teardown passt_in_ns
+
+ setup two_guests
+ test two_guests_vu/basic
+ teardown two_guests
+
+ setup passt_in_ns
+ test passt_vu/ndp
+ test passt_vu_in_ns/dhcp
+ test perf/passt_vu_tcp
+ test perf/passt_vu_udp
+ test passt_vu_in_ns/shutdown
+ teardown passt_in_ns
+
# TODO: Make those faster by at least pre-installing gcc and make on
# non-x86 images, then re-enable.
skip_distro() {
--
2.51.0
next prev parent reply other threads:[~2025-11-21 16:59 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-21 16:58 [PATCH v2 0/6] vhost-user: Add multiqueue support Laurent Vivier
2025-11-21 16:58 ` [PATCH v2 1/6] tap: Remove pool parameter from tap4_handler() and tap6_handler() Laurent Vivier
2025-11-21 16:58 ` [PATCH v2 2/6] vhost-user: Enable multiqueue Laurent Vivier
2025-11-26 2:20 ` David Gibson
2025-11-26 8:04 ` Laurent Vivier
2025-11-21 16:58 ` [PATCH v2 3/6] vhost-user: Add queue pair parameter throughout the network stack Laurent Vivier
2025-11-26 2:35 ` David Gibson
2025-11-21 16:59 ` [PATCH v2 4/6] tap: Add queue pair parameter throughout the packet processing path Laurent Vivier
2025-11-26 3:16 ` David Gibson
2025-11-21 16:59 ` [PATCH v2 5/6] flow: Add queue pair tracking to flow management Laurent Vivier
2025-11-26 3:41 ` David Gibson
2025-11-27 9:17 ` Laurent Vivier
2025-11-28 0:53 ` David Gibson
2025-11-21 16:59 ` Laurent Vivier [this message]
2025-11-26 3:45 ` [PATCH v2 6/6] test: Add multiqueue support to vhost-user test infrastructure David Gibson
2025-11-27 9:20 ` Laurent Vivier
2025-11-28 0:54 ` David Gibson
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