From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 5937445B3B; Mon, 14 Oct 2024 20:23:08 +0200 (CEST) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id E98E74065D; Mon, 14 Oct 2024 20:23:01 +0200 (CEST) Received: from mail-qv1-f53.google.com (mail-qv1-f53.google.com [209.85.219.53]) by mails.dpdk.org (Postfix) with ESMTP id 406F340613 for ; Mon, 14 Oct 2024 20:22:59 +0200 (CEST) Received: by mail-qv1-f53.google.com with SMTP id 6a1803df08f44-6cbe3e99680so22498096d6.3 for ; Mon, 14 Oct 2024 11:22:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=iol.unh.edu; s=unh-iol; t=1728930178; x=1729534978; darn=dpdk.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=xdrInqGUPe7hpIQA/VtkBalN+ThywsoH6WEheAjf3fA=; b=W71y1kiN0Z9hrb0LAmZ47MSZJRYcZysl0RNQ/N+IGyxEcVtB/vzUvw2exkFwucWSqZ k9nGsV0s3CIRMOPu0njhcQWIoxTfHUoaCaVNJYCx4AdKrN8foyfcu+YdSBFs61odsUOS WuIR+2Q85AhasFVuIbtopKpUU+NZlfbHvAE/4= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1728930178; x=1729534978; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=xdrInqGUPe7hpIQA/VtkBalN+ThywsoH6WEheAjf3fA=; b=LHHqX/iRl4pGiNA3GiDyaU3tbP1yWr8FE8wCCF0fC7Ef/2PwUDEUMPH9pHzMGuaE8o wP4kqRSnDTCI9wW1DHwgg8UPup/Yf/+98wuh+CQFGtIk+djI5Z/SMS6M060k5xsalbg0 ySOkraR1Klxu/lsMlU0HlqM/v0c9w608aD7td+eUcFPXZ6mH0Gm/GLWSvmBxequbea7s 8DLwANMypX+QlW/HV6KfRhVjQVegLG6uGoccecH6mPnpG9FhPEMWi6LgTUVoHM/wHIva ujIjy3l2GLubNHMtybkY6+T68CGSAbOMMZtpYkCjfi6yFn9th6+cWTGXAEaFNSUU3cRN yjNQ== X-Gm-Message-State: AOJu0Yy90ds0YIiQKZLg7z5d9eCaLqRDON6agf8QCTnkJgUtraK6PWVn RM9iZjRSOb29sEVxAnqQBZIQLwLDWCcSqIwHTK6eDX7QIwFTVsQUHn++FrGbZYs= X-Google-Smtp-Source: AGHT+IFW7skFAjKEduw3WWGXSIAyQxkzqA3SQJFm1u8wDglErMp5KPFeQzUse+MuWE3Nd0qamwDC/A== X-Received: by 2002:a05:6214:3387:b0:6cb:ecb3:4d3b with SMTP id 6a1803df08f44-6cbf00ab35amr181964346d6.42.1728930178450; Mon, 14 Oct 2024 11:22:58 -0700 (PDT) Received: from dean-laptop.iol.unh.edu ([2606:4100:3880:1271:f9bd:24da:464d:6294]) by smtp.gmail.com with ESMTPSA id 6a1803df08f44-6cbe86322a7sm47989366d6.116.2024.10.14.11.22.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 14 Oct 2024 11:22:58 -0700 (PDT) From: Dean Marx To: probb@iol.unh.edu, npratte@iol.unh.edu, luca.vizzarro@arm.com, yoan.picchi@foss.arm.com, Honnappa.Nagarahalli@arm.com, paul.szczepanek@arm.com Cc: dev@dpdk.org, Dean Marx Subject: [PATCH v4 2/2] dts: checksum offload test suite Date: Mon, 14 Oct 2024 14:23:20 -0400 Message-ID: <20241014182320.31125-3-dmarx@iol.unh.edu> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20241014182320.31125-1-dmarx@iol.unh.edu> References: <20240826212250.26993-1-dmarx@iol.unh.edu> <20241014182320.31125-1-dmarx@iol.unh.edu> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org test suite for verifying layer 3/4 checksum offload features on poll mode driver. Signed-off-by: Dean Marx --- dts/framework/config/conf_yaml_schema.json | 3 +- dts/tests/TestSuite_checksum_offload.py | 266 +++++++++++++++++++++ 2 files changed, 268 insertions(+), 1 deletion(-) create mode 100644 dts/tests/TestSuite_checksum_offload.py diff --git a/dts/framework/config/conf_yaml_schema.json b/dts/framework/config/conf_yaml_schema.json index df390e8ae2..99ae7afe9b 100644 --- a/dts/framework/config/conf_yaml_schema.json +++ b/dts/framework/config/conf_yaml_schema.json @@ -187,7 +187,8 @@ "enum": [ "hello_world", "os_udp", - "pmd_buffer_scatter" + "pmd_buffer_scatter", + "checksum_offload" ] }, "test_target": { diff --git a/dts/tests/TestSuite_checksum_offload.py b/dts/tests/TestSuite_checksum_offload.py new file mode 100644 index 0000000000..93c931abf8 --- /dev/null +++ b/dts/tests/TestSuite_checksum_offload.py @@ -0,0 +1,266 @@ +# SPDX-License-Identifier: BSD-3-Clause +# Copyright(c) 2024 University of New Hampshire + +"""DPDK checksum offload testing suite. + +This suite verifies L3/L4 checksum offload features of the Poll Mode Driver. +On the Rx side, IPv4 and UDP/TCP checksum by hardware is checked to ensure +checksum flags match expected flags. On the Tx side, IPv4/UDP, IPv4/TCP, +IPv6/UDP, and IPv6/TCP insertion by hardware is checked to checksum flags +match expected flags. + +""" + +from typing import List + +from scapy.layers.inet import IP, TCP, UDP # type: ignore[import-untyped] +from scapy.layers.inet6 import IPv6 # type: ignore[import-untyped] +from scapy.layers.l2 import Dot1Q, Ether # type: ignore[import-untyped] +from scapy.layers.sctp import SCTP # type: ignore[import-untyped] +from scapy.packet import Packet, Raw # type: ignore[import-untyped] + +from framework.params.testpmd import SimpleForwardingModes +from framework.remote_session.testpmd_shell import ( + ChecksumOffloadOptions, + PacketOffloadFlag, + TestPmdShell, +) +from framework.test_suite import TestSuite, func_test +from framework.testbed_model.capability import NicCapability, TopologyType, requires + + +@requires(topology_type=TopologyType.two_links) +@requires(NicCapability.RX_OFFLOAD_CHECKSUM) +@requires(NicCapability.RX_OFFLOAD_IPV4_CKSUM) +@requires(NicCapability.RX_OFFLOAD_UDP_CKSUM) +@requires(NicCapability.RX_OFFLOAD_TCP_CKSUM) +@requires(NicCapability.RX_OFFLOAD_SCTP_CKSUM) +class TestChecksumOffload(TestSuite): + """Checksum offload test suite. + + This suite consists of 6 test cases: + 1. Insert checksum on transmit packet + 2. Do not insert checksum on transmit packet + 3. Hardware checksum check L4 Rx + 4. Hardware checksum check L3 Rx + 5. Validate Rx checksum valid flags + 6. Checksum offload with vlan + + """ + + def send_packets_and_verify( + self, packet_list: List[Packet], load: str, should_receive: bool + ) -> None: + """Iterates through a list of packets and verifies they are received. + + Args: + packet_list: List of Scapy packets to send and verify. + load: Raw layer load attribute in the sent packet. + should_receive: Indicates whether the packet should be received + by the traffic generator. + """ + for i in range(0, len(packet_list)): + received_packets = self.send_packet_and_capture(packet=packet_list[i]) + received = any( + packet.haslayer(Raw) and load in str(packet.load) for packet in received_packets + ) + self.verify( + received == should_receive, + f"Packet was {'dropped' if should_receive else 'received'}", + ) + + def send_packet_and_verify_checksum( + self, packet: Packet, goodL4: bool, goodIP: bool, testpmd: TestPmdShell, id: str + ) -> None: + """Send packet and verify verbose output matches expected output. + + Args: + packet: Scapy packet to send to DUT. + goodL4: Verifies RTE_MBUF_F_RX_L4_CKSUM_GOOD in verbose output + if :data:`True`, or RTE_MBUF_F_RX_L4_CKSUM_UNKNOWN if :data:`False`. + goodIP: Verifies RTE_MBUF_F_RX_IP_CKSUM_GOOD in verbose output + if :data:`True`, or RTE_MBUF_F_RX_IP_CKSUM_UNKNOWN if :data:`False`. + testpmd: Testpmd shell session to analyze verbose output of. + id: The destination mac address that matches the sent packet in verbose output. + """ + testpmd.start() + self.send_packet_and_capture(packet=packet) + verbose_output = testpmd.extract_verbose_output(testpmd.stop()) + for packet in verbose_output: + if packet.dst_mac == id: + isIP = PacketOffloadFlag.RTE_MBUF_F_RX_IP_CKSUM_GOOD in packet.ol_flags + isL4 = PacketOffloadFlag.RTE_MBUF_F_RX_L4_CKSUM_GOOD in packet.ol_flags + self.verify(isL4 == goodL4, "Layer 4 checksum flag did not match expected checksum flag.") + self.verify(isIP == goodIP, "IP checksum flag did not match expected checksum flag.") + + def setup_hw_offload(self, testpmd: TestPmdShell) -> None: + """Sets IP, UDP, TCP, and SCTP layers to hardware offload. + + Args: + testpmd: Testpmd shell to configure. + """ + testpmd.stop_all_ports() + offloads = ( + ChecksumOffloadOptions.ip + | ChecksumOffloadOptions.udp + | ChecksumOffloadOptions.tcp + | ChecksumOffloadOptions.sctp + ) + testpmd.csum_set_hw(layers=offloads, port_id=0) + testpmd.start_all_ports() + + @func_test + def test_insert_checksums(self) -> None: + """Enable checksum offload insertion and verify packet reception.""" + mac_id = "00:00:00:00:00:01" + payload = "xxxxx" + packet_list = [ + Ether(dst=mac_id) / IP() / UDP() / Raw(payload), + Ether(dst=mac_id) / IP() / TCP() / Raw(payload), + Ether(dst=mac_id) / IP() / SCTP() / Raw(payload), + Ether(dst=mac_id) / IPv6(src="::1") / UDP() / Raw(payload), + Ether(dst=mac_id) / IPv6(src="::1") / TCP() / Raw(payload), + ] + with TestPmdShell(node=self.sut_node, enable_rx_cksum=True) as testpmd: + testpmd.set_forward_mode(SimpleForwardingModes.csum) + testpmd.set_verbose(level=1) + self.setup_hw_offload(testpmd=testpmd) + testpmd.start() + self.send_packets_and_verify(packet_list=packet_list, load=payload, should_receive=True) + for i in range(0, len(packet_list)): + self.send_packet_and_verify_checksum( + packet=packet_list[i], goodL4=True, goodIP=True, testpmd=testpmd, id=mac_id + ) + + @func_test + def test_no_insert_checksums(self) -> None: + """Disable checksum offload insertion and verify packet reception.""" + mac_id = "00:00:00:00:00:01" + payload = "xxxxx" + packet_list = [ + Ether(dst=mac_id) / IP() / UDP() / Raw(payload), + Ether(dst=mac_id) / IP() / TCP() / Raw(payload), + Ether(dst=mac_id) / IP() / SCTP() / Raw(payload), + Ether(dst=mac_id) / IPv6(src="::1") / UDP() / Raw(payload), + Ether(dst=mac_id) / IPv6(src="::1") / TCP() / Raw(payload), + ] + with TestPmdShell(node=self.sut_node, enable_rx_cksum=True) as testpmd: + testpmd.set_forward_mode(SimpleForwardingModes.csum) + testpmd.set_verbose(level=1) + testpmd.start() + self.send_packets_and_verify(packet_list=packet_list, load=payload, should_receive=True) + for i in range(0, len(packet_list)): + self.send_packet_and_verify_checksum( + packet=packet_list[i], goodL4=True, goodIP=True, testpmd=testpmd, id=mac_id + ) + + @func_test + def test_l4_rx_checksum(self) -> None: + """Tests L4 Rx checksum in a variety of scenarios.""" + mac_id = "00:00:00:00:00:01" + packet_list = [ + Ether(dst=mac_id) / IP() / UDP(), + Ether(dst=mac_id) / IP() / TCP(), + Ether(dst=mac_id) / IP() / SCTP(), + Ether(dst=mac_id) / IP() / UDP(chksum=0xF), + Ether(dst=mac_id) / IP() / TCP(chksum=0xF), + Ether(dst=mac_id) / IP() / SCTP(chksum=0xF), + ] + with TestPmdShell(node=self.sut_node, enable_rx_cksum=True) as testpmd: + testpmd.set_forward_mode(SimpleForwardingModes.csum) + testpmd.set_verbose(level=1) + self.setup_hw_offload(testpmd=testpmd) + for i in range(0, 3): + self.send_packet_and_verify_checksum( + packet=packet_list[i], goodL4=True, goodIP=True, testpmd=testpmd, id=mac_id + ) + for i in range(3, 6): + self.send_packet_and_verify_checksum( + packet=packet_list[i], goodL4=False, goodIP=True, testpmd=testpmd, id=mac_id + ) + + @func_test + def test_l3_rx_checksum(self) -> None: + """Tests L3 Rx checksum hardware offload.""" + mac_id = "00:00:00:00:00:01" + packet_list = [ + Ether(dst=mac_id) / IP() / UDP(), + Ether(dst=mac_id) / IP() / TCP(), + Ether(dst=mac_id) / IP() / SCTP(), + Ether(dst=mac_id) / IP(chksum=0xF) / UDP(), + Ether(dst=mac_id) / IP(chksum=0xF) / TCP(), + Ether(dst=mac_id) / IP(chksum=0xF) / SCTP(), + ] + with TestPmdShell(node=self.sut_node, enable_rx_cksum=True) as testpmd: + testpmd.set_forward_mode(SimpleForwardingModes.csum) + testpmd.set_verbose(level=1) + self.setup_hw_offload(testpmd=testpmd) + for i in range(0, 3): + self.send_packet_and_verify_checksum( + packet=packet_list[i], goodL4=True, goodIP=True, testpmd=testpmd, id=mac_id + ) + for i in range(3, 6): + self.send_packet_and_verify_checksum( + packet=packet_list[i], goodL4=True, goodIP=False, testpmd=testpmd, id=mac_id + ) + + @func_test + def test_validate_rx_checksum(self) -> None: + """Verify verbose output of Rx packets matches expected behavior.""" + mac_id = "00:00:00:00:00:01" + packet_list = [ + Ether(dst=mac_id) / IP() / UDP(), + Ether(dst=mac_id) / IP() / TCP(), + Ether(dst=mac_id) / IP() / SCTP(), + Ether(dst=mac_id) / IPv6(src="::1") / UDP(), + Ether(dst=mac_id) / IPv6(src="::1") / TCP(), + Ether(dst=mac_id) / IP(chksum=0x0) / UDP(chksum=0xF), + Ether(dst=mac_id) / IP(chksum=0x0) / TCP(chksum=0xF), + Ether(dst=mac_id) / IP(chksum=0x0) / SCTP(chksum=0xF), + Ether(dst=mac_id) / IPv6(src="::1") / UDP(chksum=0xF), + Ether(dst=mac_id) / IPv6(src="::1") / TCP(chksum=0xF), + ] + with TestPmdShell(node=self.sut_node, enable_rx_cksum=True) as testpmd: + testpmd.set_forward_mode(SimpleForwardingModes.csum) + testpmd.set_verbose(level=1) + self.setup_hw_offload(testpmd=testpmd) + for i in range(0, 5): + self.send_packet_and_verify_checksum( + packet=packet_list[i], goodL4=True, goodIP=True, testpmd=testpmd, id=mac_id + ) + for i in range(5, 8): + self.send_packet_and_verify_checksum( + packet=packet_list[i], goodL4=False, goodIP=False, testpmd=testpmd, id=mac_id + ) + for i in range(8, 10): + self.send_packet_and_verify_checksum( + packet=packet_list[i], goodL4=False, goodIP=True, testpmd=testpmd, id=mac_id + ) + + @requires(NicCapability.RX_OFFLOAD_VLAN) + @func_test + def test_vlan_checksum(self) -> None: + """Tests VLAN Rx checksum hardware offload and verify packet reception.""" + mac_id = "00:00:00:00:00:01" + payload = "xxxxx" + packet_list = [ + Ether(dst=mac_id) / Dot1Q(vlan=1) / IP(chksum=0x0) / UDP(chksum=0xF) / Raw(payload), + Ether(dst=mac_id) / Dot1Q(vlan=1) / IP(chksum=0x0) / TCP(chksum=0xF) / Raw(payload), + Ether(dst=mac_id) / Dot1Q(vlan=1) / IP(chksum=0x0) / SCTP(chksum=0x0) / Raw(payload), + Ether(dst=mac_id) / Dot1Q(vlan=1) / IPv6(src="::1") / UDP(chksum=0xF) / Raw(payload), + Ether(dst=mac_id) / Dot1Q(vlan=1) / IPv6(src="::1") / TCP(chksum=0xF) / Raw(payload), + ] + with TestPmdShell(node=self.sut_node, enable_rx_cksum=True) as testpmd: + testpmd.set_forward_mode(SimpleForwardingModes.csum) + testpmd.set_verbose(level=1) + self.setup_hw_offload(testpmd=testpmd) + testpmd.start() + self.send_packets_and_verify(packet_list=packet_list, load=payload, should_receive=True) + for i in range(0, 3): + self.send_packet_and_verify_checksum( + packet=packet_list[i], goodL4=False, goodIP=False, testpmd=testpmd, id=mac_id + ) + for i in range(3, 5): + self.send_packet_and_verify_checksum( + packet=packet_list[i], goodL4=False, goodIP=True, testpmd=testpmd, id=mac_id + ) -- 2.44.0