From patchwork Thu Jul 16 22:16:28 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lorenzo Bianconi X-Patchwork-Id: 1330596 Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=kernel.org Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=default header.b=P+/M+2tl; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4B79bb1f64z9sR4 for ; Fri, 17 Jul 2020 09:35:23 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727861AbgGPXfT (ORCPT ); Thu, 16 Jul 2020 19:35:19 -0400 Received: from mail.kernel.org ([198.145.29.99]:42526 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726514AbgGPXfR (ORCPT ); Thu, 16 Jul 2020 19:35:17 -0400 Received: from localhost.localdomain.com (unknown [151.48.133.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 0959C207E8; Thu, 16 Jul 2020 22:16:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1594937816; bh=4lqM8fbe+l0p5rRK1uHJW36r73ciPMzmX+L6OP8CQDY=; h=From:To:Cc:Subject:Date:From; b=P+/M+2tliioKfzwZGtrBCf8yDZ/s9VBRPeDlaJo08ELtDLQaSYJ9r24FDL2BVRPIP ThbGwT7xfYks4giIAC6iH0GMZUJ3RFvGWaSzon+Pty0Zyr8r55V1x2Pwfe8TiQaccM ECR4dZG3Nn08ocuIeTuI3oz2H6nNTj6kEcb7wlzY= From: Lorenzo Bianconi To: netdev@vger.kernel.org Cc: davem@davemloft.net, bpf@vger.kernel.org, kuba@kernel.org, ilias.apalodimas@linaro.org, lorenzo.bianconi@redhat.com, brouer@redhat.com, echaudro@redhat.com, sameehj@amazon.com Subject: [PATCH v2 net-next 0/6] rework mvneta napi_poll loop for XDP multi-buffers Date: Fri, 17 Jul 2020 00:16:28 +0200 Message-Id: X-Mailer: git-send-email 2.26.2 MIME-Version: 1.0 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Rework mvneta_rx_swbm routine in order to process all rx descriptors before building the skb or run the xdp program attached to the interface. Introduce xdp_get_shared_info_from_{buff,frame} utility routines to get the skb_shared_info pointer from xdp_buff or xdp_frame. This is a preliminary series to enable multi-buffers and jumbo frames for XDP according to [1] [1] https://github.com/xdp-project/xdp-project/blob/master/areas/core/xdp-multi-buffer01-design.org Changes since v1: - rely on skb_frag_* utility routines to access page/offset/len of the xdp multi-buffer Lorenzo Bianconi (6): xdp: introduce xdp_get_shared_info_from_{buff,frame} utility routines net: mvneta: move skb build after descriptors processing net: mvneta: move mvneta_run_xdp after descriptors processing net: mvneta: drop all fragments in XDP_DROP net: mvneta: get rid of skb in mvneta_rx_queue net: mvneta: move rxq->left_size on the stack drivers/net/ethernet/marvell/mvneta.c | 221 ++++++++++++++------------ include/net/xdp.h | 15 ++ 2 files changed, 138 insertions(+), 98 deletions(-)