[PATCH v1] dts: make one link the default topology

[PATCH v1] dts: make one link the default topology

[Dean Marx]

Currently the default topology for test suites when not specified
is two link, which causes all one link test runs to skip.
This makes writing test suites less flexible for a user
who doesn't add a topology requirement, so changing this
to one link reduces barriers to getting a test suite
running quickly.

Bugzilla ID: 1759

Signed-off-by: Dean Marx <dmarx@iol.unh.edu>
---
 dts/framework/testbed_model/topology.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dts/framework/testbed_model/topology.py b/dts/framework/testbed_model/topology.py
index 899ea0ad3a..9f21520bbb 100644
--- a/dts/framework/testbed_model/topology.py
+++ b/dts/framework/testbed_model/topology.py
@@ -35,7 +35,7 @@ class TopologyType(int, Enum):
     @classmethod
     def default(cls) -> "TopologyType":
         """The default topology required by test cases if not specified otherwise."""
-        return cls.two_links
+        return cls.one_link
 
 
 class PortLink(NamedTuple):
-- 
2.50.1

Re: [PATCH v1] dts: make one link the default topology

[Luca Vizzarro]

Looks good to me.

Reviewed-by: Luca Vizzarro <luca.vizzarro@arm.com>

[PATCH v2 1/2] dts: rewrite two link topology requirements

[Dean Marx]

Some of the DTS test suites require two link topologies
in order to run, but not all truly require two links
for proper testing. Rewrite the topology requirements
on these test suites to reflect the actual
requirements.

Bugzilla ID: 1755

Signed-off-by: Dean Marx <dmarx@iol.unh.edu>
---
 dts/tests/TestSuite_blocklist.py        | 3 ++-
 dts/tests/TestSuite_checksum_offload.py | 2 +-
 dts/tests/TestSuite_dynamic_config.py   | 2 +-
 dts/tests/TestSuite_port_control.py     | 2 +-
 dts/tests/TestSuite_uni_pkt.py          | 2 +-
 dts/tests/TestSuite_vlan.py             | 2 +-
 6 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/dts/tests/TestSuite_blocklist.py b/dts/tests/TestSuite_blocklist.py
index ce7da1cc8f..c75be247b5 100644
--- a/dts/tests/TestSuite_blocklist.py
+++ b/dts/tests/TestSuite_blocklist.py
@@ -12,7 +12,7 @@
 from framework.testbed_model.port import Port
 
 
-@requires(topology_type=TopologyType.two_links)
+@requires(topology_type=TopologyType.one_link)
 class TestBlocklist(TestSuite):
     """DPDK device blocklisting test suite."""
 
@@ -51,6 +51,7 @@ def one_port_blocklisted(self):
         """
         self.verify_blocklisted_ports(self.topology.sut_ports[:1])
 
+    @requires(topology_type=TopologyType.two_links)
     @func_test
     def all_but_one_port_blocklisted(self):
         """Run testpmd with all but one blocklisted port.
diff --git a/dts/tests/TestSuite_checksum_offload.py b/dts/tests/TestSuite_checksum_offload.py
index c9efdcaa1c..54606676d5 100644
--- a/dts/tests/TestSuite_checksum_offload.py
+++ b/dts/tests/TestSuite_checksum_offload.py
@@ -29,7 +29,7 @@
 from framework.testbed_model.capability import NicCapability, TopologyType, requires
 
 
-@requires(topology_type=TopologyType.two_links)
+@requires(topology_type=TopologyType.one_link)
 @requires(NicCapability.RX_OFFLOAD_IPV4_CKSUM)
 @requires(NicCapability.RX_OFFLOAD_UDP_CKSUM)
 @requires(NicCapability.RX_OFFLOAD_TCP_CKSUM)
diff --git a/dts/tests/TestSuite_dynamic_config.py b/dts/tests/TestSuite_dynamic_config.py
index 49f295a39a..f713cbf945 100644
--- a/dts/tests/TestSuite_dynamic_config.py
+++ b/dts/tests/TestSuite_dynamic_config.py
@@ -26,7 +26,7 @@
 
 
 @requires(NicCapability.PHYSICAL_FUNCTION)
-@requires(topology_type=TopologyType.two_links)
+@requires(topology_type=TopologyType.one_link)
 class TestDynamicConfig(TestSuite):
     """Dynamic config suite.
 
diff --git a/dts/tests/TestSuite_port_control.py b/dts/tests/TestSuite_port_control.py
index 58783f1d18..c117b8b7ca 100644
--- a/dts/tests/TestSuite_port_control.py
+++ b/dts/tests/TestSuite_port_control.py
@@ -19,7 +19,7 @@
 
 
 @requires(NicCapability.PHYSICAL_FUNCTION)
-@requires(topology_type=TopologyType.two_links)
+@requires(topology_type=TopologyType.one_link)
 class TestPortControl(TestSuite):
     """DPDK Port Control Testing Suite."""
 
diff --git a/dts/tests/TestSuite_uni_pkt.py b/dts/tests/TestSuite_uni_pkt.py
index 690c5d4fd1..c767ecdeb0 100644
--- a/dts/tests/TestSuite_uni_pkt.py
+++ b/dts/tests/TestSuite_uni_pkt.py
@@ -30,7 +30,7 @@
 from framework.testbed_model.capability import TopologyType, requires
 
 
-@requires(topology_type=TopologyType.two_links)
+@requires(topology_type=TopologyType.one_link)
 class TestUniPkt(TestSuite):
     """DPDK Unified packet test suite.
 
diff --git a/dts/tests/TestSuite_vlan.py b/dts/tests/TestSuite_vlan.py
index d2a9e614d4..56ef8c431e 100644
--- a/dts/tests/TestSuite_vlan.py
+++ b/dts/tests/TestSuite_vlan.py
@@ -21,7 +21,7 @@
 
 
 @requires(NicCapability.RX_OFFLOAD_VLAN_FILTER)
-@requires(topology_type=TopologyType.two_links)
+@requires(topology_type=TopologyType.one_link)
 class TestVlan(TestSuite):
     """DPDK VLAN test suite.
 
-- 
2.50.1

[PATCH v2 2/2] dts: make one link the default topology

[Dean Marx]

Currently the default topology for test suites when not specified
is two link, which causes all one link test runs to skip.
This makes writing test suites less flexible for a user
who doesn't add a topology requirement, so changing this
to one link reduces barriers to getting a test suite
running quickly.

Bugzilla ID: 1759

Signed-off-by: Dean Marx <dmarx@iol.unh.edu>
---
 dts/framework/testbed_model/topology.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dts/framework/testbed_model/topology.py b/dts/framework/testbed_model/topology.py
index 899ea0ad3a..9f21520bbb 100644
--- a/dts/framework/testbed_model/topology.py
+++ b/dts/framework/testbed_model/topology.py
@@ -35,7 +35,7 @@ class TopologyType(int, Enum):
     @classmethod
     def default(cls) -> "TopologyType":
         """The default topology required by test cases if not specified otherwise."""
-        return cls.two_links
+        return cls.one_link
 
 
 class PortLink(NamedTuple):
-- 
2.50.1

Re: [PATCH v2 2/2] dts: make one link the default topology

[Luca Vizzarro]

Reviewed-by: Luca Vizzarro <luca.vizzarro@arm.com>

Re: [PATCH v2 1/2] dts: rewrite two link topology requirements

[Luca Vizzarro]

On 07/08/2025 15:07, Dean Marx wrote:
> diff --git a/dts/tests/TestSuite_blocklist.py b/dts/tests/TestSuite_blocklist.py
> index ce7da1cc8f..c75be247b5 100644
> --- a/dts/tests/TestSuite_blocklist.py
> +++ b/dts/tests/TestSuite_blocklist.py
> @@ -12,7 +12,7 @@
>   from framework.testbed_model.port import Port
>   
>   
> -@requires(topology_type=TopologyType.two_links)
> +@requires(topology_type=TopologyType.one_link)
>   class TestBlocklist(TestSuite):
>       """DPDK device blocklisting test suite."""
>   
> @@ -51,6 +51,7 @@ def one_port_blocklisted(self):
>           """
>           self.verify_blocklisted_ports(self.topology.sut_ports[:1])
>   
> +    @requires(topology_type=TopologyType.two_links)
I am guessing by the logic of this then one_port_blocklisted could also 
use it.>       @func_test
>       def all_but_one_port_blocklisted(self):
>           """Run testpmd with all but one blocklisted port.
Would it make more sense to swap the order of the commits? This is 
because adding an explicit @requires for one_link becomes redundant. I'd 
probably change the default and then allow all the test suites that are 
happy with one link to just remove the two link requirement.

Re: [PATCH v2 1/2] dts: rewrite two link topology requirements

[Luca Vizzarro]

Between patches a lot can happen, and a long wait time can make it 
worse. It is useful to explain the changes between versions. Please 
review the contributing guidelines around adding cover letters or 
annotating single patches:

https://doc.dpdk.org/guides/contributing/patches.html#creating-patches