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([2001:ee0:4f0e:fb30:af83:9564:6a79:4f18]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-23506cd362fsm39298485ad.116.2025.05.31.01.52.00 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 31 May 2025 01:52:05 -0700 (PDT) Message-ID: Date: Sat, 31 May 2025 15:51:57 +0700 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [RFC PATCH net-next v2 2/2] selftests: net: add XDP socket tests for virtio-net To: Maciej Fijalkowski Cc: netdev@vger.kernel.org, "Michael S. Tsirkin" , Jason Wang , Xuan Zhuo , =?UTF-8?Q?Eugenio_P=C3=A9rez?= , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Alexei Starovoitov , Daniel Borkmann , Jesper Dangaard Brouer , John Fastabend , virtualization@lists.linux.dev, linux-kernel@vger.kernel.org, bpf@vger.kernel.org References: <20250527161904.75259-1-minhquangbui99@gmail.com> <20250527161904.75259-3-minhquangbui99@gmail.com> Content-Language: en-US From: Bui Quang Minh In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 5/30/25 18:45, Maciej Fijalkowski wrote: > On Thu, May 29, 2025 at 09:29:14PM +0700, Bui Quang Minh wrote: >> On 5/29/25 18:18, Maciej Fijalkowski wrote: >>> On Tue, May 27, 2025 at 11:19:04PM +0700, Bui Quang Minh wrote: >>>> This adds a test to test the virtio-net rx when there is a XDP socket >>>> bound to it. There are tests for both copy mode and zerocopy mode, both >>>> cases when XDP program returns XDP_PASS and XDP_REDIRECT to a XDP socket. >>>> >>>> Signed-off-by: Bui Quang Minh >>> Hi Bui, >>> >>> have you considered adjusting xskxceiver for your needs? If yes and you >>> decided to go with another test app then what were the issues around it? >>> >>> This is yet another approach for xsk testing where we already have a >>> test framework. >> Hi, >> >> I haven't tried much hard to adapt xskxceiver. I did have a look at >> xskxceiver but I felt the supported topology is not suitable for my need. To >> test the receiving side in virtio-net, I use Qemu to set up virtio-net in >> the guest and vhost-net in the host side. The sending side is in the host >> and the receiving is in the guest so I can't figure out how to do that with >> xskxceiver. > I see - couldn't the python side be executing xdpsock then instead of your > own app? I'm not aware of xdpsock. Could you give the path to that file? > I wouldn't like to end up with several xsk tools for testing data path on > different environments.