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 91C2B457E5; Fri, 16 Aug 2024 16:20:32 +0200 (CEST) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 9F4EC42E4F; Fri, 16 Aug 2024 16:20:19 +0200 (CEST) Received: from mail-qt1-f178.google.com (mail-qt1-f178.google.com [209.85.160.178]) by mails.dpdk.org (Postfix) with ESMTP id 1BF5942DF1 for ; Fri, 16 Aug 2024 16:20:18 +0200 (CEST) Received: by mail-qt1-f178.google.com with SMTP id d75a77b69052e-454b12cc82cso1540301cf.1 for ; Fri, 16 Aug 2024 07:20:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=iol.unh.edu; s=unh-iol; t=1723818017; x=1724422817; 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=fyWLZ2I1vqzwOa3xGFgdkBBwPCzt0vaEskl3utbotcQ=; b=SK1Jy2cCHNsrAzalgyat+T3KAI04Jnh5k/qQozfSjdbP9sc9Ht/qe6Ms51/coXtXXj C7OXWf9SAD/kmZgnw1vt/Qf1mx7wRgDPZNBK3GRwkbODeF4fIelyjx0xUa76hci3Mb3m JjW27LB9kJtceb6gpJHh7p7jEmMoIwngu8pr4= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1723818017; x=1724422817; 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=fyWLZ2I1vqzwOa3xGFgdkBBwPCzt0vaEskl3utbotcQ=; b=XxrL6+MsNqfIdbctALYRI3suimaMc5nEW7dNRw74l5Ct+cSHWUibIe/YAjtuVkxSy3 QTGZcGaNUJhz530w7kyGYu836MXYXZcGkQqyQ4Sat57yRRPhyHF5/Ea/3YWbYRgITEoh 3rG6SD+FnTDSkg1TwKY/iYsbekht2T5TNHz4MleAaK7gQDaRZ0YJNDFqg3XIMJVrMXSm qpDcAvge+c2MKWf2Ge0Yj4YNiZyGc3qG2YfQMDzfIvKqw6BCus9hvIYhJpDlHcXQhtyj mqUmusOak7PszADvXkl+nA4/MzD7ts0vBgus6k9dsH9qh73P3MueaYjHEkM5ITw4Pj63 SzAQ== X-Gm-Message-State: AOJu0YxG/ATiKkfPJIf3ZHMqxEcpDTCte/wwKiUVyqFGx2KfVDdlhrLC iaEVjHP4pKVTIpmHQuPGHqZ0/gv5Vvj+tJC9kWCGa/I8u1nS+bUscmZxfo2Rzqg= X-Google-Smtp-Source: AGHT+IFq2WqQgjePg9JO3n+LFbIs5DXLX7pL8b5k8NhrtnlfHXfmfXs7myQPENYevwX2/98OnfR6EA== X-Received: by 2002:a05:622a:2486:b0:451:c93a:5aa5 with SMTP id d75a77b69052e-453743ac25bmr37808751cf.56.1723818017049; Fri, 16 Aug 2024 07:20:17 -0700 (PDT) Received: from dean-laptop.hsd1.nh.comcast.net ([2601:188:cd7e:6880::fcf1]) by smtp.gmail.com with ESMTPSA id d75a77b69052e-4536a07837esm16422461cf.91.2024.08.16.07.20.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 16 Aug 2024 07:20:16 -0700 (PDT) From: Dean Marx To: probb@iol.unh.edu, npratte@iol.unh.edu, jspewock@iol.unh.edu, luca.vizzarro@arm.com, yoan.picchi@foss.arm.com, Honnappa.Nagarahalli@arm.com, paul.szczepanek@arm.com, juraj.linkes@pantheon.tech Cc: dev@dpdk.org, Dean Marx Subject: [PATCH v1 2/2] dts: checksum offload test suite Date: Fri, 16 Aug 2024 10:20:31 -0400 Message-ID: <20240816142031.15150-3-dmarx@iol.unh.edu> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240816142031.15150-1-dmarx@iol.unh.edu> References: <20240816142031.15150-1-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. Depends-on: patch-143033 ("dts: add text parser for testpmd verbose output") Depends-on: patch-142691 ("dts: add send_packets to test suites and rework packet addressing") Signed-off-by: Dean Marx --- dts/tests/TestSuite_checksum_offload.py | 255 ++++++++++++++++++++++++ 1 file changed, 255 insertions(+) create mode 100644 dts/tests/TestSuite_checksum_offload.py diff --git a/dts/tests/TestSuite_checksum_offload.py b/dts/tests/TestSuite_checksum_offload.py new file mode 100644 index 0000000000..b327261ff3 --- /dev/null +++ b/dts/tests/TestSuite_checksum_offload.py @@ -0,0 +1,255 @@ +# 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.all import Packet # type: ignore[import-untyped] +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.sctp import SCTP # type: ignore[import-untyped] +from scapy.layers.l2 import Dot1Q # type: ignore[import-untyped] +from scapy.layers.l2 import Ether +from scapy.packet import Raw # type: ignore[import-untyped] + +from framework.remote_session.testpmd_shell import ( + SimpleForwardingModes, + TestPmdShell, + VerboseOLFlag, + ChecksumOffloadOptions +) +from framework.test_suite import TestSuite + + +class TestChecksumOffload(TestSuite): + """Checksum offload test suite. + + This suite consists of 8 test cases: + 1. Insert checksum on transmit packet + 2. Do not insert checksum on transmit packet + 3. Validate Rx checksum valid flags + 4. Hardware checksum check L4 Rx + 5. Hardware checksum check L3 Rx + 6. Checksum offload with vlan + + """ + + def set_up_suite(self) -> None: + """Set up the test suite. + + Setup: + Verify that at least two port links are created when the + test run is initialized. + """ + self.verify(len(self._port_links) > 1, "Not enough port links.") + + def send_packet_and_verify( + self, packet_list: List[Packet], load: str, should_receive: bool + ) -> None: + """Send and verify packet is received on the traffic generator. + + 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 + ) -> 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. + """ + testpmd.start() + self.send_packet_and_capture(packet=packet) + verbose_output = testpmd.extract_verbose_output(testpmd.stop()) + isL4 = any( + VerboseOLFlag.RTE_MBUF_F_RX_L4_CKSUM_GOOD in packet.ol_flags + for index in verbose_output + for packet in index.packets + ) + isIP = any( + VerboseOLFlag.RTE_MBUF_F_RX_IP_CKSUM_GOOD in packet.ol_flags + for index in verbose_output + for packet in index.packets + ) + 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.""" + testpmd.port_stop(port=0) + testpmd.csum_set_hw(layer=ChecksumOffloadOptions.ip, port_id=0) + testpmd.csum_set_hw(layer=ChecksumOffloadOptions.udp, port_id=0) + testpmd.csum_set_hw(layer=ChecksumOffloadOptions.tcp, port_id=0) + testpmd.csum_set_hw(layer=ChecksumOffloadOptions.sctp, port_id=0) + testpmd.port_start(port=0) + + def test_insert_checksums(self) -> None: + """Enable checksum offload insertion and verify packet reception.""" + payload = "xxxxx" + packet_list = [ + Ether() / IP() / UDP() / Raw(payload), + Ether() / IP() / TCP() / Raw(payload), + Ether() / IP() / SCTP() / Raw(payload), + Ether() / IPv6(src="::1") / UDP() / Raw(payload), + Ether() / 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_packet_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 + ) + + def test_no_insert_checksums(self) -> None: + """Enable checksum offload insertion and verify packet reception.""" + payload = "xxxxx" + packet_list = [ + Ether() / IP() / UDP() / Raw(payload), + Ether() / IP() / TCP() / Raw(payload), + Ether() / IP() / SCTP() / Raw(payload), + Ether() / IPv6(src="::1") / UDP() / Raw(payload), + Ether() / 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_packet_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 + ) + + def test_validate_rx_checksum(self) -> None: + """Verify verbose output of Rx packets matches expected behavior.""" + packet_list = [ + Ether() / IP() / UDP(), + Ether() / IP() / TCP(), + Ether() / IP() / SCTP(), + Ether() / IPv6(src="::1") / UDP(), + Ether() / IPv6(src="::1") / TCP(), + Ether() / IP(chksum=0x0) / UDP(chksum=0xF), + Ether() / IP(chksum=0x0) / TCP(chksum=0xF), + Ether() / IP(chksum=0x0) / SCTP(chksum=0xf), + Ether() / IPv6(src="::1") / UDP(chksum=0xF), + Ether() / 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 + ) + for i in range(5, 8): + self.send_packet_and_verify_checksum( + packet=packet_list[i], goodL4=False, goodIP=False, testpmd=testpmd + ) + for i in range(8, 10): + self.send_packet_and_verify_checksum( + packet=packet_list[i], goodL4=False, goodIP=True, testpmd=testpmd + ) + + def test_l4_rx_checksum(self) -> None: + """Tests L4 Rx checksum in a variety of scenarios.""" + packet_list = [ + Ether() / IP() / UDP(), + Ether() / IP() / TCP(), + Ether() / IP() / SCTP(), + Ether() / IP() / UDP(chksum=0xF), + Ether() / IP() / TCP(chksum=0xF), + Ether() / 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 + ) + for i in range(3, 6): + self.send_packet_and_verify_checksum( + packet=packet_list[i], goodL4=False, goodIP=True, testpmd=testpmd + ) + + def test_l3_rx_checksum(self) -> None: + """Tests L3 Rx checksum hardware offload.""" + packet_list = [ + Ether() / IP() / UDP(), + Ether() / IP() / TCP(), + Ether() / IP() / SCTP(), + Ether() / IP(chksum=0xF) / UDP(), + Ether() / IP(chksum=0xF) / TCP(), + Ether() / 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 + ) + for i in range(3, 6): + self.send_packet_and_verify_checksum( + packet=packet_list[i], goodL4=True, goodIP=False, testpmd=testpmd + ) + + def test_vlan_checksum(self) -> None: + """Tests VLAN Rx checksum hardware offload and verify packet reception.""" + payload = "xxxxx" + packet_list = [ + Ether() / Dot1Q(vlan=1) / IP(chksum=0x0) / UDP(chksum=0xF) / Raw(payload), + Ether() / Dot1Q(vlan=1) / IP(chksum=0x0) / TCP(chksum=0xF) / Raw(payload), + Ether() / Dot1Q(vlan=1) / IP(chksum=0x0) / SCTP(chksum=0x0) / Raw(payload), + Ether() / Dot1Q(vlan=1) / IPv6(src="::1") / UDP(chksum=0xF) / Raw(payload), + Ether() / 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_packet_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 + ) + for i in range(3, 5): + self.send_packet_and_verify_checksum( + packet=packet_list[i], goodL4=False, goodIP=True, testpmd=testpmd + ) -- 2.44.0