[RFC,v1,1/2] dts: add csum HW offload to testpmd shell

diff --git a/dts/framework/remote_session/testpmd_shell.py b/dts/framework/remote_session/testpmd_shell.py
index 43e9f56517..be8fbdc295 100644
--- a/dts/framework/remote_session/testpmd_shell.py
+++ b/dts/framework/remote_session/testpmd_shell.py
@@ -806,6 +806,100 @@  def show_port_stats(self, port_id: int) -> TestPmdPortStats:
 
         return TestPmdPortStats.parse(output)
 
+    def port_stop(self, port: int, verify: bool = True):
+        """Stop specified port.
+
+        Args:
+            port: Specifies the port number to use, must be between 0-32.
+            verify: If :data:`True`, the output of the command is scanned
+                to ensure specified port is stopped. If not, it is considered
+                an error.
+
+        Raises:
+            InteractiveCommandExecutionError: If `verify` is :data:`True` and the port
+                is not stopped."""
+        port_output = self.send_command(f"port stop {port}")
+        if verify:
+            if "Done" not in port_output:
+                self._logger.debug(f"Failed to stop port {port}: \n{port_output}")
+                raise InteractiveCommandExecutionError(f"Testpmd failed to stop port {port}.")
+
+    def port_start(self, port: int, verify: bool = True):
+        """Start specified port.
+
+        Args:
+            port: Specifies the port number to use, must be between 0-32.
+            verify: If :data:`True`, the output of the command is scanned
+                to ensure specified port is started. If not, it is considered
+                an error.
+
+        Raises:
+            InteractiveCommandExecutionError: If `verify` is :data:`True` and the port
+                is not started."""
+        port_output = self.send_command(f"port start {port}")
+        if verify:
+            if "Done" not in port_output:
+                self._logger.debug(f"Failed to start port {port}: \n{port_output}")
+                raise InteractiveCommandExecutionError(f"Testpmd failed to start port {port}.")
+
+    def csum_set_hw(self, layer: str, port_id: int, verify: bool = True) -> None:
+        """Enables hardware checksum offloading on the specified layer.
+
+        Args:
+            layer: The layer that checksum offloading should be enabled on.
+                options: tcp, ip, udp, sctp, outer-ip, outer-udp.
+            port_id: The port number to enable checksum offloading on, should be within 0-32.
+            verify: If :data:`True` the output of the command will be scanned in an attempt to
+                verify that checksum offloading was enabled on the port.
+
+        Raises:
+            InteractiveCommandExecutionError: If checksum offload is not enabled successfully.
+        """
+        csum_output = self.send_command(f"csum set {layer} hw {port_id}")
+        if (verify and ("Bad arguments" in csum_output or f"Please stop port {port_id} first")):
+            self._logger.debug(f"Failed to set csum hw mode on port {port_id}:\n{csum_output}")
+            raise InteractiveCommandExecutionError(
+                f"Failed to set csum hw mode on port {port_id}"
+                )
+        if verify and f"checksum offload is not supported by port {port_id}" in csum_output:
+            self._logger.debug(f"Checksum {layer} offload is not supported by port {port_id}:\n{csum_output}")
+
+        success = False
+        if "outer-ip" in layer:
+            if "Outer-Ip checksum offload is hw" in csum_output:
+                success = True
+        if "outer-udp" in layer:
+            if "Outer-Udp checksum offload is hw" in csum_output:
+                success = True
+        else:
+            if f"{layer.upper} checksum offload is hw" in csum_output:
+                success = True
+        if not success and verify:
+            self._logger.debug(f"Failed to set csum hw mode on port {port_id}:\n{csum_output}")
+
+    def set_verbose(self, level: int, verify: bool = True) -> None:
+        """Set debug verbosity level.
+
+        Args:
+            level: 0 - silent except for error
+                1 - fully verbose except for Tx packets
+                2 - fully verbose except for Rx packets
+                >2 - fully verbose
+            verify: if :data:`True` an additional command will be sent to verify that verbose level
+                is properly set. Defaults to :data:`True`.
+
+        Raises:
+            InteractiveCommandExecutionError: If `verify` is :data:`True` and verbose level
+            is not correctly set.
+        """
+        verbose_output = self.send_command(f"set verbose {level}")
+        if verify:
+            if "Change verbose level" not in verbose_output:
+                self._logger.debug(f"Failed to set verbose level to {level}: \n{verbose_output}")
+                raise InteractiveCommandExecutionError(
+                    f"Testpmd failed to set verbose level to {level}."
+                )
+
     def _close(self) -> None:
         """Overrides :meth:`~.interactive_shell.close`."""
         self.stop()