[dts] [PATCH 10/11 v1] test_plans: add test cases for virtio_event_idx_interrupt

[Yinan]

From: Wang Yinan <yinan.wang at intel.com>

Signed-off-by: Wang Yinan <yinan.wang at intel.com>
---
 .../virtio_event_idx_interrupt_test_plan.rst  | 123 ++++++++++++++++--
 1 file changed, 115 insertions(+), 8 deletions(-)

diff --git a/test_plans/virtio_event_idx_interrupt_test_plan.rst b/test_plans/virtio_event_idx_interrupt_test_plan.rst
index e51d808..8293032 100644
--- a/test_plans/virtio_event_idx_interrupt_test_plan.rst
+++ b/test_plans/virtio_event_idx_interrupt_test_plan.rst
@@ -37,16 +37,17 @@ virtio event idx interrupt mode test plan
 Description
 ===========
 
-This feature is to suppress interrupts for performance improvement, need compare interrupt times with and without
-virtio event idx enabled. Also need cover driver reload and live migration test.
+This feature is to suppress interrupts for performance improvement, need compare
+interrupt times with and without virtio event idx enabled. Also need cover driver
+reload test. For packed virtqueue test, need using qemu version > 4.2.0.
 
 Test flow
 =========
 
 TG --> NIC --> Vhost-user --> Virtio-net
 
-Test Case 1: compare interrupt times with and without virtio event idx enabled
-==============================================================================
+Test Case 1: Compare interrupt times with and without split ring virtio event idx enabled
+=========================================================================================
 
 1. Bind one nic port to igb_uio, then launch the vhost sample by below commands::
 
@@ -78,8 +79,8 @@ Test Case 1: compare interrupt times with and without virtio event idx enabled
 
 6. Compare interrupt times between virtio event_idx enabled and virtio event_idx disabled.
 
-Test Case 2: virtio-pci driver reload test
-==========================================
+Test Case 2: Split ring virtio-pci driver reload test
+=====================================================
 
 1. Bind one nic port to igb_uio, then launch the vhost sample by below commands::
 
@@ -116,8 +117,8 @@ Test Case 2: virtio-pci driver reload test
 
 6. Rerun step4 and step5 100 times to check event idx workable after driver reload.
 
-Test Case 3: wake up virtio-net cores with event idx interrupt mode 16 queues test
-==================================================================================
+Test Case 3: Wake up split ring virtio-net cores with event idx interrupt mode 16 queues test
+=============================================================================================
 
 1. Bind one nic port to igb_uio, then launch the vhost sample by below commands::
 
@@ -150,3 +151,109 @@ Test Case 3: wake up virtio-net cores with event idx interrupt mode 16 queues te
     testpmd>stop
     testpmd>start
     testpmd>stop
+
+Test Case 4: Compare interrupt times with and without packed ring virtio event idx enabled
+==========================================================================================
+
+1. Bind one nic port to igb_uio, then launch the vhost sample by below commands::
+
+    rm -rf vhost-net*
+    ./testpmd -c 0xF0000000 -n 4 --socket-mem 2048,2048 --legacy-mem --file-prefix=vhost --vdev 'net_vhost,iface=vhost-net,queues=1' -- -i
+    --nb-cores=1 --txd=1024 --rxd=1024
+    testpmd>start
+
+2. Launch VM::
+
+    taskset -c 32-33 \
+    qemu-system-x86_64 -name us-vhost-vm1 \
+     -cpu host -enable-kvm -m 2048 -object memory-backend-file,id=mem,size=2048M,mem-path=/mnt/huge,share=on -numa node,memdev=mem -mem-prealloc \
+     -smp cores=2,sockets=1 -drive file=/home/osimg/ubuntu16.img  \
+     -monitor unix:/tmp/vm2_monitor.sock,server,nowait -net nic,vlan=2,macaddr=00:00:00:08:e8:aa,addr=1f -net user,vlan=2,hostfwd=tcp:127.0.0.1:6004-:22 \
+     -chardev socket,id=char0,path=./vhost-net -netdev type=vhost-user,id=mynet1,chardev=char0,vhostforce \
+     -device virtio-net-pci,mac=52:54:00:00:00:01,netdev=mynet1,mrg_rxbuf=on,csum=on,gso=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,packed=on \
+     -vnc :12 -daemonize
+
+3. On VM1, set virtio device IP::
+
+    ifconfig [ens3] 1.1.1.2  # [ens3] is the name of virtio-net
+
+4. Send 10M packets from packet generator to nic, check virtio-net interrupt times by below cmd in VM::
+
+    cat /proc/interrupts
+
+5. Disable virtio event idx feature and rerun step1 ~ step4.
+
+6. Compare interrupt times between virtio event_idx enabled and virtio event_idx disabled.
+
+Test Case 5: Packed ring virtio-pci driver reload test
+======================================================
+
+1. Bind one nic port to igb_uio, then launch the vhost sample by below commands::
+
+    rm -rf vhost-net*
+    ./testpmd -c 0xF0000000 -n 4 --socket-mem 2048,2048 --legacy-mem --file-prefix=vhost --vdev 'net_vhost,iface=vhost-net,queues=1' -- -i --nb-cores=1 --txd=1024 --rxd=1024
+    testpmd>start
+
+2. Launch VM::
+
+    taskset -c 32-33 \
+    qemu-system-x86_64 -name us-vhost-vm1 \
+     -cpu host -enable-kvm -m 2048 -object memory-backend-file,id=mem,size=2048M,mem-path=/mnt/huge,share=on -numa node,memdev=mem -mem-prealloc \
+     -smp cores=2,sockets=1 -drive file=/home/osimg/ubuntu16.img  \
+     -monitor unix:/tmp/vm2_monitor.sock,server,nowait -net nic,vlan=2,macaddr=00:00:00:08:e8:aa,addr=1f -net user,vlan=2,hostfwd=tcp:127.0.0.1:6004-:22 \
+     -chardev socket,id=char0,path=./vhost-net -netdev type=vhost-user,id=mynet1,chardev=char0,vhostforce \
+     -device virtio-net-pci,mac=52:54:00:00:00:01,netdev=mynet1,mrg_rxbuf=on,csum=on,gso=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,packed=on \
+     -vnc :12 -daemonize
+
+3. On VM1, set virtio device IP, send 10M packets from packet generator to nic then check virtio device can receive packets::
+
+    ifconfig [ens3] 1.1.1.2      # [ens3] is the name of virtio-net
+    tcpdump -i [ens3]
+
+4. Reload virtio-net driver by below cmds::
+
+    ifconfig [ens3] down
+    ./dpdk-devbind.py -u [00:03.0]   # [00:03.0] is the pci addr of virtio-net
+    ./dpdk-devbind.py -b virtio-pci [00:03.0]
+
+5. Check virtio device can receive packets again::
+
+    ifconfig [ens3] 1.1.1.2
+    tcpdump -i [ens3]
+
+6. Rerun step4 and step5 100 times to check event idx workable after driver reload.
+
+Test Case 6: Wake up packed ring virtio-net cores with event idx interrupt mode 16 queues test
+==============================================================================================
+
+1. Bind one nic port to igb_uio, then launch the vhost sample by below commands::
+
+    rm -rf vhost-net*
+    ./testpmd -l 1-17 -n 4 --socket-mem 2048,2048 --legacy-mem --file-prefix=vhost --vdev 'net_vhost,iface=vhost-net,queues=16' -- -i --nb-cores=16 --txd=1024 --rxd=1024 --rxq=16 --txq=16
+    testpmd>start
+
+2. Launch VM::
+
+    taskset -c 32-33 \
+    qemu-system-x86_64 -name us-vhost-vm1 \
+     -cpu host -enable-kvm -m 2048 -object memory-backend-file,id=mem,size=2048M,mem-path=/mnt/huge,share=on -numa node,memdev=mem -mem-prealloc \
+     -smp cores=16,sockets=1 -drive file=/home/osimg/ubuntu16.img  \
+     -monitor unix:/tmp/vm2_monitor.sock,server,nowait -net nic,vlan=2,macaddr=00:00:00:08:e8:aa,addr=1f -net user,vlan=2,hostfwd=tcp:127.0.0.1:6004-:22 \
+     -chardev socket,id=char0,path=./vhost-net -netdev type=vhost-user,id=mynet1,chardev=char0,vhostforce,queues=16 \
+     -device virtio-net-pci,mac=52:54:00:00:00:01,netdev=mynet1,mrg_rxbuf=on,mq=on,vectors=40,csum=on,gso=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,packed=on \
+     -vnc :12 -daemonize
+
+3. On VM1, give virtio device ip addr and enable vitio-net with 16 quques::
+
+    ifconfig [ens3] 1.1.1.2           # [ens3] is the name of virtio-net
+    ethtool -L [ens3] combined 16
+
+4. Send 10M different ip addr packets from packet generator to nic, check virtio-net interrupt times by below cmd in VM::
+
+    cat /proc/interrupts
+
+5. After two hours stress test, stop and restart testpmd, check each queue has new packets coming::
+
+    testpmd>stop
+    testpmd>start
+    testpmd>stop
\ No newline at end of file
-- 
2.17.1