From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) (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 4204C2263A; Thu, 27 Jun 2024 07:07:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=193.142.43.55 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719472080; cv=none; b=hovZrbxy2KzGzq8zc6KrT05R09RHBceDntrQ9atNdjVNSY/DiMSj6DK5csNASvGXmv10owG+OxvbY1NWBK1Mqvgx83jdOLJsTobglCNAh82JH+cBxWUxWe9KPRSi4ugwg9LEul4dEI1MgzkEdCXjX9EMoX5+4FSJs+EmfODV1oM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719472080; c=relaxed/simple; bh=oH++3i2lIsk8bBpYY8twz2VB+Fk8vfbgsXIXDBlKzfg=; h=From:To:Cc:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=dH/1xlnNMXZGA31Uw9CjcFPzOYfdHv7uprTZx5JfD0IlOl0ljj8DZpqRP2UrEY28rbFfLWs1R3tqbXpAIayQxyTTfZlv3iDbNqbDxwi5bXOt0i+Ah2uJu0tLFa1Iff441rm7tBiqSYqpADFoh23G9AVXtz4pJPE+PU1na+ORpsI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de; spf=pass smtp.mailfrom=linutronix.de; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=uq+sF3pB; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=t7D9ry0I; arc=none smtp.client-ip=193.142.43.55 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linutronix.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="uq+sF3pB"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="t7D9ry0I" From: Kurt Kanzenbach DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1719472077; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=oH++3i2lIsk8bBpYY8twz2VB+Fk8vfbgsXIXDBlKzfg=; b=uq+sF3pBgaoRM1KAEuhWD4ANZOE5EmtumvJPqINFf8wRkCRiAaZWP0lEDg2oOn2KmIuUyt hCC8Q0sa9j1u3d28mLw9FJ29xy8B/HNVqIQH1gbTHcK+pX607EYkSEJrXwIQqjwSPhXg9G 9rEyZIC2RxRNLVjKO7DSjkp7Os2osAN5bVIAnvR8fZkSvexNRW4kOLUvS4CwqTSmLcl91X LVKVSs982M/ruJShoNIr5lrg0DKW7kHGytfJ7CtZwlKMD4aNQKkHG/UirSupe2I7AX+2YW Cue3AsPNQO4MQP1PQK+xa73ex3hHOOVwJg+bCWPjZ6LOnPJERTdnKgXs/d5aiA== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1719472077; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=oH++3i2lIsk8bBpYY8twz2VB+Fk8vfbgsXIXDBlKzfg=; b=t7D9ry0IQqOqjO2huAHD3lXcIjS9/CtH0DdLPUsPGLNJ5NzxezMm+qe/VHQPcCWJvezEzp 6r2BVtcamQrwuOBQ== To: Sriram Yagnaraman Cc: intel-wired-lan@lists.osuosl.org, bpf@vger.kernel.org, netdev@vger.kernel.org, Jesse Brandeburg , Tony Nguyen , "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Alexei Starovoitov , Daniel Borkmann , Jesper Dangaard Brouer , John Fastabend , =?utf-8?B?QmrDtnJuIFTDtnBlbA==?= , Magnus Karlsson , Maciej Fijalkowski , Jonathan Lemon , Sriram Yagnaraman Subject: Re: [PATCH iwl-next v4 0/4] igb: Add support for AF_XDP zero-copy In-Reply-To: <20230804084051.14194-1-sriram.yagnaraman@est.tech> References: <20230804084051.14194-1-sriram.yagnaraman@est.tech> Date: Thu, 27 Jun 2024 09:07:55 +0200 Message-ID: <878qyq9838.fsf@kurt.kurt.home> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; boundary="=-=-="; micalg=pgp-sha512; protocol="application/pgp-signature" --=-=-= Content-Type: text/plain Hi Sriram, On Fri Aug 04 2023, Sriram Yagnaraman wrote: > The first couple of patches adds helper funcctions to prepare for AF_XDP > zero-copy support which comes in the last couple of patches, one each > for Rx and TX paths. > > As mentioned in v1 patchset [0], I don't have access to an actual IGB > device to provide correct performance numbers. I have used Intel 82576EB > emulator in QEMU [1] to test the changes to IGB driver. I gave this patch series a try on a recent kernel and silicon (i210). There was one issue in igb_xmit_zc(). But other than that it worked very nicely. It seems like it hasn't been merged yet. Do you have any plans for continuing to work on this? 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