Message ID | 158634664953.707275.13465095292337872793.stgit@firesoul |
---|---|
State | RFC |
Delegated to: | BPF Maintainers |
Headers | show
Return-Path: <bpf-owner@vger.kernel.org> X-Original-To: incoming-bpf@patchwork.ozlabs.org Delivered-To: patchwork-incoming-bpf@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (no SPF record) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=bpf-owner@vger.kernel.org; receiver=<UNKNOWN>) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=K77aMVfC; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 48y2fV6rFtz9sSX for <incoming-bpf@patchwork.ozlabs.org>; Wed, 8 Apr 2020 21:50:58 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728636AbgDHLu6 (ORCPT <rfc822;incoming-bpf@patchwork.ozlabs.org>); Wed, 8 Apr 2020 07:50:58 -0400 Received: from us-smtp-delivery-1.mimecast.com ([207.211.31.120]:29655 "EHLO us-smtp-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728570AbgDHLu6 (ORCPT <rfc822; bpf@vger.kernel.org>); Wed, 8 Apr 2020 07:50:58 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1586346657; 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: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=T5Pk5DJLVGFLtCPU8i1qdArebWBTUU2KueadN/fIUUM=; b=K77aMVfCSNUmu9YbLGP6rIpzX+qUy3Bu8KNDJj5+fK5+8ZECCiBzdtuhJZqw/94oliufl1 Z62WaaTyV42+7FJA5qFaDrff9S42vzs76Fjm216DoPtz4lQKIbW+1yHVav8qr9JPfR/RuV +8t+xs0ckVElguem4K5OQFWy+aiiDsE= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-69-S-fwJTaSO4WDqMdkIR_rwQ-1; Wed, 08 Apr 2020 07:50:53 -0400 X-MC-Unique: S-fwJTaSO4WDqMdkIR_rwQ-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id D69F72F62; Wed, 8 Apr 2020 11:50:50 +0000 (UTC) Received: from firesoul.localdomain (unknown [10.40.208.40]) by smtp.corp.redhat.com (Postfix) with ESMTP id 8130661069; Wed, 8 Apr 2020 11:50:50 +0000 (UTC) Received: from [192.168.42.3] (localhost [IPv6:::1]) by firesoul.localdomain (Postfix) with ESMTP id 94348300020FA; Wed, 8 Apr 2020 13:50:49 +0200 (CEST) Subject: [PATCH RFC v2 03/33] sfc: add XDP frame size From: Jesper Dangaard Brouer <brouer@redhat.com> To: sameehj@amazon.com Cc: Jesper Dangaard Brouer <brouer@redhat.com>, netdev@vger.kernel.org, bpf@vger.kernel.org, zorik@amazon.com, akiyano@amazon.com, gtzalik@amazon.com, =?utf-8?q?Toke_H=C3=B8iland-J=C3=B8rgensen?= <toke@redhat.com>, Daniel Borkmann <borkmann@iogearbox.net>, Alexei Starovoitov <alexei.starovoitov@gmail.com>, John Fastabend <john.fastabend@gmail.com>, Alexander Duyck <alexander.duyck@gmail.com>, Jeff Kirsher <jeffrey.t.kirsher@intel.com>, David Ahern <dsahern@gmail.com>, Willem de Bruijn <willemdebruijn.kernel@gmail.com>, Ilias Apalodimas <ilias.apalodimas@linaro.org>, Lorenzo Bianconi <lorenzo@kernel.org>, Saeed Mahameed <saeedm@mellanox.com> Date: Wed, 08 Apr 2020 13:50:49 +0200 Message-ID: <158634664953.707275.13465095292337872793.stgit@firesoul> In-Reply-To: <158634658714.707275.7903484085370879864.stgit@firesoul> References: <158634658714.707275.7903484085370879864.stgit@firesoul> User-Agent: StGit/0.19 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 Sender: bpf-owner@vger.kernel.org Precedence: bulk List-ID: <bpf.vger.kernel.org> X-Mailing-List: bpf@vger.kernel.org |
Series |
[RFC,v2,01/33] xdp: add frame size to xdp_buff
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diff --git a/drivers/net/ethernet/sfc/rx.c b/drivers/net/ethernet/sfc/rx.c index 260352d97d9d..68c47a8c71df 100644 --- a/drivers/net/ethernet/sfc/rx.c +++ b/drivers/net/ethernet/sfc/rx.c @@ -308,6 +308,7 @@ static bool efx_do_xdp(struct efx_nic *efx, struct efx_channel *channel, xdp_set_data_meta_invalid(&xdp); xdp.data_end = xdp.data + rx_buf->len; xdp.rxq = &rx_queue->xdp_rxq_info; + xdp.frame_sz = efx->rx_page_buf_step; xdp_act = bpf_prog_run_xdp(xdp_prog, &xdp); rcu_read_unlock();
This driver uses RX page-split when possible. It was recently fixed in commit 86e85bf6981c ("sfc: fix XDP-redirect in this driver") to add needed tailroom for XDP-redirect. After the fix efx->rx_page_buf_step is the frame size, with enough head and tail-room for XDP-redirect. Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> --- drivers/net/ethernet/sfc/rx.c | 1 + 1 file changed, 1 insertion(+)