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 75721C433FE for ; Fri, 21 Jan 2022 10:11:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1379935AbiAUKLa (ORCPT ); Fri, 21 Jan 2022 05:11:30 -0500 Received: from dfw.source.kernel.org ([139.178.84.217]:35132 "EHLO dfw.source.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1379889AbiAUKLI (ORCPT ); Fri, 21 Jan 2022 05:11:08 -0500 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 dfw.source.kernel.org (Postfix) with ESMTPS id AF7CD61A24; Fri, 21 Jan 2022 10:11:07 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 185F4C340E3; Fri, 21 Jan 2022 10:11:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1642759867; bh=imbv1xmL2ewxJtYBY1lCR/5/SOQQ7SP35P6phUWrwDU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=NxqrcENDKPnQKAsj2PFjOts9toyBxVyIr8DGm2IunVu04d8/JFQ5SbvU7EHxZSqQU p8FZLzQ3hed8e0jkL/jaGk8KOZUzwc1eGx+lrD+YToP90MTCFHP9mFv2jBSecNl1pk CMKJHvfuF97v7oyBSpSARm8nDljj+39576U9DpIf71SF73ASZCppeycU1AsRoGCb90 lLwgylxHAvwlkIjZ7m04TerePbBoP3u/JeXp7WmJok4ZXt9gWbF9vUu2TTqjweFbsu zDrYBj/QBDBcy9W0dff4Fmx1IYqRw/1hg0o3RnHVjhpbeax6bwSp8QRrfX41pFGVNK OqMuTPuIAo8vg== 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 06/23] net: marvell: rely on xdp_update_skb_shared_info utility routine Date: Fri, 21 Jan 2022 11:09:49 +0100 Message-Id: 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 Rely on xdp_update_skb_shared_info routine in order to avoid resetting frags array in skb_shared_info structure building the skb in mvneta_swbm_build_skb(). Frags array is expected to be initialized by the receiving driver building the xdp_buff and here we just need to update memory metadata. Acked-by: Toke Hoiland-Jorgensen Acked-by: John Fastabend Signed-off-by: Lorenzo Bianconi --- drivers/net/ethernet/marvell/mvneta.c | 23 ++++++++++------------- 1 file changed, 10 insertions(+), 13 deletions(-) diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c index bc70292dda43..f1fd93e89c73 100644 --- a/drivers/net/ethernet/marvell/mvneta.c +++ b/drivers/net/ethernet/marvell/mvneta.c @@ -2332,8 +2332,12 @@ mvneta_swbm_add_rx_fragment(struct mvneta_port *pp, skb_frag_size_set(frag, data_len); __skb_frag_set_page(frag, page); - if (!xdp_buff_has_frags(xdp)) + if (!xdp_buff_has_frags(xdp)) { + sinfo->xdp_frags_size = *size; xdp_buff_set_frags_flag(xdp); + } + if (page_is_pfmemalloc(page)) + xdp_buff_set_frag_pfmemalloc(xdp); } else { page_pool_put_full_page(rxq->page_pool, page, true); } @@ -2347,7 +2351,6 @@ mvneta_swbm_build_skb(struct mvneta_port *pp, struct page_pool *pool, struct skb_shared_info *sinfo = xdp_get_shared_info_from_buff(xdp); struct sk_buff *skb; u8 num_frags; - int i; if (unlikely(xdp_buff_has_frags(xdp))) num_frags = sinfo->nr_frags; @@ -2362,18 +2365,12 @@ mvneta_swbm_build_skb(struct mvneta_port *pp, struct page_pool *pool, skb_put(skb, xdp->data_end - xdp->data); skb->ip_summed = mvneta_rx_csum(pp, desc_status); - if (likely(!xdp_buff_has_frags(xdp))) - goto out; - - for (i = 0; i < num_frags; i++) { - skb_frag_t *frag = &sinfo->frags[i]; - - skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags, - skb_frag_page(frag), skb_frag_off(frag), - skb_frag_size(frag), PAGE_SIZE); - } + if (unlikely(xdp_buff_has_frags(xdp))) + xdp_update_skb_shared_info(skb, num_frags, + sinfo->xdp_frags_size, + num_frags * xdp->frame_sz, + xdp_buff_is_frag_pfmemalloc(xdp)); -out: return skb; } -- 2.34.1