From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EDC9260240 for ; Wed, 14 Feb 2024 16:21:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.129.124 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707927699; cv=none; b=P1M7pQx4G6ehUkZe4zL0a8IPaVnU1xhDweF+oLOs5lZ+xlYO+AqhXbvjK8ezanimZzsqN++YiEVZWSusjNOks24IsX+EEEKDM1Ov5TCFy38jzn1p5StaVPo2AlyGPcvI+zNQYKLwMcd8SpkjIk2D4GT1W3VISUsdaOd0klJwR/g= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707927699; c=relaxed/simple; bh=8LgRuWDfMAZAwlfDngx4eWKBCuwALOYEmfYXahQxD8A=; h=From:To:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=MIjW56UUQtffvBleuZPm4jHCAdLFRQsBZipBQiSRd+LQ556nq982tggG9cwtm1DY4ctNAvyydDL1C/2IM+xJxMdS+wQV41xbdWY2xbQptkrMt3j7ZjWFgABzPD+N2Yn9rZBptZC7IU8dFv2SwOg0Y6mh9Jtukg+8WDo6Yhcj2Co= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=ILZXxJ9z; arc=none smtp.client-ip=170.10.129.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="ILZXxJ9z" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1707927696; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=8LgRuWDfMAZAwlfDngx4eWKBCuwALOYEmfYXahQxD8A=; b=ILZXxJ9zTbp5GCtt+J6wJoVY6q/oi0Th3pCJB71TP0xtOBSkc6cbcD8zttioDp19/y+k5i bajZctQcHpohYTmSywnVbiWIqZ72IRjChTuVINwW8j7Jvzqonab879jOwOZR9DLjdhejRV Uad6jMiQTwcdbxa4pyfZk8bCSiMpu7M= Received: from mail-ej1-f69.google.com (mail-ej1-f69.google.com [209.85.218.69]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-263-cbU0_dwyPa-Gg3T526sawg-1; Wed, 14 Feb 2024 11:21:35 -0500 X-MC-Unique: cbU0_dwyPa-Gg3T526sawg-1 Received: by mail-ej1-f69.google.com with SMTP id a640c23a62f3a-a3d4cfc543fso41215566b.2 for ; Wed, 14 Feb 2024 08:21:34 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1707927693; x=1708532493; h=content-transfer-encoding:mime-version:message-id:date:references :in-reply-to:subject:to:from:x-gm-message-state:from:to:cc:subject :date:message-id:reply-to; bh=8LgRuWDfMAZAwlfDngx4eWKBCuwALOYEmfYXahQxD8A=; b=lMLoH4vw4mI/V4Kjp7xHIYFzdSu4d9UtpXPVoitgDR5v/p9IfDOPYOZkYVsa1+MLko LHh8q3aGN2EbVPe582UJfgSPP6yTOvWDQ2RsYEWgSdXGY1Q8ptvjpcANv6X7fFj5S1YL HrnhdBu6Np9I7MzzOYkLROjnYtC1IqfrR/KzFbuDQE18A3uQdEcCZqSAbB+Bui+Z+PJ8 xU93JumFlWRzaVT/vf4D9sMaj66rDhBxHz3YYPK9QfXmx5zfi/fBt5yQq0MlhH/Tb4JL gKllVUNiHNO3NZrmCnMwPWCOZH/vX+/rVBIUS0E0zbWkT+I7WYbGxsAzGsaI4NQYMx93 UVEw== X-Forwarded-Encrypted: i=1; AJvYcCVSfKB4k3Xu3rvH0GgRZFaEdutWS0AC7u2OFEbnpo7OTIar+ofwOdDUVP7jUtKQ5Z5Ktm5xqc4Q5zpR3NMVNr91cUIa023oBH6Yb0g= X-Gm-Message-State: AOJu0YwcvePS/vMOAQbqvUu1Zi7HVTex5SozJP0u3isvSHIP2SfGzo07 j5kjita3WoMCgN0Z37q1f9mDCg7bwvrSth635TNDvq2H9PcJANQx7FSV+yt3cWCIGGZxXngt6Vp flL81HZA4Jx2puSEA8ctgreN0/1ub/e4ZUgdj7S+l0OhtJ4buVztoFP6qKr/5 X-Received: by 2002:a17:906:6d54:b0:a3d:70ba:5988 with SMTP id a20-20020a1709066d5400b00a3d70ba5988mr402574ejt.40.1707927693159; Wed, 14 Feb 2024 08:21:33 -0800 (PST) X-Google-Smtp-Source: AGHT+IGeLhJjpM+27nvQUXyGvvsrnGkQ3rEKmywR4zO4s1cr2T7Nf8EHq257U2BHqDVX9hv/jQ+upw== X-Received: by 2002:a17:906:6d54:b0:a3d:70ba:5988 with SMTP id a20-20020a1709066d5400b00a3d70ba5988mr402567ejt.40.1707927692945; Wed, 14 Feb 2024 08:21:32 -0800 (PST) X-Forwarded-Encrypted: i=1; AJvYcCV6wV+K8+WGUJOuN+ouh1NibEZ8nxNvrUfPUFnq9BjwJTE5oJLAFvnrtzbLrsTEtdYG8/qEPeU5gCIA0f8aUkJ2UxeRg/Pm/W45eOU= Received: from alrua-x1.borgediget.toke.dk ([2a0c:4d80:42:443::2]) by smtp.gmail.com with ESMTPSA id l25-20020a170906415900b00a3d2157e267sm1296818ejk.11.2024.02.14.08.21.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 14 Feb 2024 08:21:32 -0800 (PST) Received: by alrua-x1.borgediget.toke.dk (Postfix, from userid 1000) id 5719110F57F2; Wed, 14 Feb 2024 17:21:32 +0100 (CET) From: Toke =?utf-8?Q?H=C3=B8iland-J=C3=B8rgensen?= To: Marcus Wichelmann , xdp-newbies@vger.kernel.org Subject: Re: XDP packet queueing and scheduling capabilities In-Reply-To: References: <87le7ofre3.fsf@toke.dk> X-Clacks-Overhead: GNU Terry Pratchett Date: Wed, 14 Feb 2024 17:21:32 +0100 Message-ID: <877cj7dnjn.fsf@toke.dk> Precedence: bulk X-Mailing-List: xdp-newbies@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Marcus Wichelmann writes: > Am 13.02.24 um 14:03 schrieb Toke H=C3=B8iland-J=C3=B8rgensen: >> What's your interest in this? I.e., what do you want to use them for? >> Would be useful to know so I can make sure this is covered :) > > Hi, just wanting to let you know that we're also still very interested=20 > in this for our cloud-provider use case. > > We use XDP to route packets to and from VMs and want to also apply=20 > firewall rules on the way. For this, we need to buffer/delay reordered=20 > IP fragments that arrived before the first fragment until we have seen=20 > the required L4 header. > > Having a packet queue for this, like in your patch, that can also be=20 > dequeued again, would definitively be helpful for that. > > We'd also like to implement shaping in the future, so this is also very=20 > interesting for us. Great, thanks for the feedback! Hadn't thought about frag reassembly, but that should definitely be possible as well; will keep that in mind! :) -Toke