From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 01310C433EF for ; Fri, 21 Jan 2022 10:11:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1379856AbiAUKLE (ORCPT ); Fri, 21 Jan 2022 05:11:04 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42176 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1379872AbiAUKKr (ORCPT ); Fri, 21 Jan 2022 05:10:47 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 028DBC06173F; Fri, 21 Jan 2022 02:10:47 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id BFA7BB81ED8; Fri, 21 Jan 2022 10:10:45 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 75373C340E1; Fri, 21 Jan 2022 10:10:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1642759844; bh=iCDA64QsPXudOAGQnpu8WTHtqksQdMhtdJfZ1+l6gaI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Tc+TYpM/kiYzS6pAghmC/eTBesZiN9oxlBmwzhRY9H/6nv1KGr4sP/HC613yOyXpr VNpT2JFmAUw1Fv9VxNNI8GQH08cNywhRV03EIeePNj2LlISZXddkYFpqsuYWy6bHuc 0eaNclZHn8OEpy8B4ZrWT91r490yo7/La9/l+Q9fvTI/4m+2gngmM23BaVORvwfR5W 0maEscBBj+rQjuvzTUOFyX204XxeCNEnvuFedkwzEGeJVEo6jy+ZKmhWtZQ9pTxfTy PG/iGLTRhtpaXKiiPkp186X15F35Qv6TKju2djmdF1agSm8wrkNsr+6GWFhnxwP743 xvYFYMocQGlog== From: Lorenzo Bianconi To: bpf@vger.kernel.org, netdev@vger.kernel.org Cc: lorenzo.bianconi@redhat.com, davem@davemloft.net, kuba@kernel.org, ast@kernel.org, daniel@iogearbox.net, shayagr@amazon.com, john.fastabend@gmail.com, dsahern@kernel.org, brouer@redhat.com, echaudro@redhat.com, jasowang@redhat.com, alexander.duyck@gmail.com, saeed@kernel.org, maciej.fijalkowski@intel.com, magnus.karlsson@intel.com, tirthendu.sarkar@intel.com, toke@redhat.com, andrii.nakryiko@gmail.com Subject: [PATCH v23 bpf-next 01/23] net: skbuff: add size metadata to skb_shared_info for xdp Date: Fri, 21 Jan 2022 11:09:44 +0100 Message-Id: <8a849819a3e0a143d540f78a3a5add76e17e980d.1642758637.git.lorenzo@kernel.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Introduce xdp_frags_size field in skb_shared_info data structure to store xdp_buff/xdp_frame frame paged size (xdp_frags_size will be used in xdp frags support). In order to not increase skb_shared_info size we will use a hole due to skb_shared_info alignment. Acked-by: Toke Hoiland-Jorgensen Acked-by: John Fastabend Acked-by: Jesper Dangaard Brouer Signed-off-by: Lorenzo Bianconi --- include/linux/skbuff.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index bf11e1fbd69b..8131d0de7559 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -557,6 +557,7 @@ struct skb_shared_info { * Warning : all fields before dataref are cleared in __alloc_skb() */ atomic_t dataref; + unsigned int xdp_frags_size; /* Intermediate layers must ensure that destructor_arg * remains valid until skb destructor */ -- 2.34.1