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([2001:ee0:4f0e:fb30:c672:ef11:a97b:5717]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-312db8eb19asm2158390a91.44.2025.06.03.07.18.53 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 03 Jun 2025 07:19:00 -0700 (PDT) Message-ID: <5c6323fc-e147-457a-98ae-df1d1fa7cd7e@gmail.com> Date: Tue, 3 Jun 2025 21:18:51 +0700 Precedence: bulk X-Mailing-List: linux-kernel@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 6/2/25 22:55, Maciej Fijalkowski wrote: > On Sat, May 31, 2025 at 03:51:57PM +0700, Bui Quang Minh wrote: >> 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? > https://github.com/xdp-project/bpf-examples/tree/main/AF_XDP-example > > this is our go-to app side of AF_XDP. Thanks, I'll take a look at it and try to use it for selftest if possible in next version. Quang Minh.