[v1] test_plans/vhost_1024_ethports_test_plan.rst
Commit Message
Updta test plan
Signed-off-by: Yinan Wang <yinan.wang@intel.com>
---
test_plans/vhost_1024_ethports_test_plan.rst | 18 ++++++++++--------
1 file changed, 10 insertions(+), 8 deletions(-)
Comments
> Updta test plan
>
> Signed-off-by: Yinan Wang <yinan.wang@intel.com>
Applied
@@ -31,27 +31,29 @@
OF THE POSSIBILITY OF SUCH DAMAGE.
=============================
-vhost 1024 ethports test plan
+vhost 1023 ethports test plan
=============================
-This test plan test function of launch vhost with 1024 ethports.
+This test plan test function of launch vhost with 1023 ethports.
+Note: Because the value of MAX_FDS is 1024 and there is an extra gobal fd, the number of vdev is limit to 1023.
+So when vhost-user ports number > 1023, it will report an error "failed to add listen fd".
-Test Case1: Basic test for launch vhost with 1024 ethports
+Test Case1: Basic test for launch vhost with 1023 ethports
===========================================================
-1. SW preparation: change "CONFIG_RTE_MAX_ETHPORTS" to 1024 in DPDK configure file::
+1. SW preparation: change "CONFIG_RTE_MAX_ETHPORTS" to 1023 in DPDK configure file::
vi ./config/common_base
-CONFIG_RTE_MAX_ETHPORTS=32
- +CONFIG_RTE_MAX_ETHPORTS=1024
+ +CONFIG_RTE_MAX_ETHPORTS=1023
-2. Launch vhost with 1024 vdev::
+2. Launch vhost with 1023 vdev::
./testpmd -c 0x3000 -n 4 --file-prefix=vhost --vdev 'eth_vhost0,iface=vhost-net,queues=1' \
- --vdev 'eth_vhost1,iface=vhost-net1,queues=1' ... -- -i # only list two vdev, here ommit other 1022 vdevs, from eth_vhost2 to eth_vhost1023
+ --vdev 'eth_vhost1,iface=vhost-net1,queues=1' ... -- -i # only list two vdev, here ommit other 1021 vdevs, from eth_vhost2 to eth_vhost1022
3. Change "CONFIG_RTE_MAX_ETHPORTS" back to 32 in DPDK configure file::
vi ./config/common_base
+CONFIG_RTE_MAX_ETHPORTS=32
- -CONFIG_RTE_MAX_ETHPORTS=1024
+ -CONFIG_RTE_MAX_ETHPORTS=1023