From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ej1-f47.google.com (mail-ej1-f47.google.com [209.85.218.47]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BFB3429DB8E for ; Thu, 17 Jul 2025 12:11:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.218.47 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752754288; cv=none; b=sVxTv2g+egQhAQ6m1NngYmovRWmVjFT1n0UCaWDrYwFc2Gb2kynsPBVCHq7/bL5fAmPKIsB9+dExNdyoep9wiq9emSuxA//mdHJH7sKrhpPYpYr/qNAVZBcZqwIQBLL2Zk8WcU65H6H1j67xsJbPBhYw4Afm7elk9Agy5RHnwEk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752754288; c=relaxed/simple; bh=P8vk5Hgw1tgxUgUlGpEEfcEnINzDHJTtnJgc36ojQPg=; h=From:To:Cc:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=Jw08QcmpUHQXkIBSloakRmwhmfDyJjDMTicwNPaDhSD6/Uv+kIMY1l4YA/dH8MUYgCnSX3W1gYwztqbKBGQIH5vE7HSq7DuJCIUutBmvqkOcpVooX+mpd8dQZKxZwDXMhvWv1XKJiiZcIbpcZkldWrlSlINpPL6kIT+lAO3NulA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=cloudflare.com; spf=pass smtp.mailfrom=cloudflare.com; dkim=pass (2048-bit key) header.d=cloudflare.com header.i=@cloudflare.com header.b=YqFTEXi9; arc=none smtp.client-ip=209.85.218.47 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=cloudflare.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=cloudflare.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=cloudflare.com header.i=@cloudflare.com header.b="YqFTEXi9" Received: by mail-ej1-f47.google.com with SMTP id a640c23a62f3a-ad572ba1347so127573366b.1 for ; Thu, 17 Jul 2025 05:11:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cloudflare.com; s=google09082023; t=1752754285; x=1753359085; darn=vger.kernel.org; h=mime-version:message-id:date:references:in-reply-to:subject:cc:to :from:from:to:cc:subject:date:message-id:reply-to; bh=+OKtnDxQN1rQvgUExQEfgNocGu+aFrd+PlVCR98yHgE=; b=YqFTEXi9NAioggDzwMmOxhXF0esWRaJQp+X1D+N2LPEXYvu9GqKzZk7bUEvUCTtOod ynH8hRlTzFZYjizI6fW3wwHrAKfG97UpbSiPMF0PeqNbh/pt755++LAEs7UnaaQg19eM NoJpZzfLWmogNw00UlOUSxf2U+Je1zkF45GBnQo1axme5ZD9e8y7QdErJRhQf9uv0Pmj KWLR8BDtueSEv5lGDy0pfnV7ftkg2Ej9jIFifIUKo+dDjXTEs1JjAmqTp2F93B5xDOpQ eOLr1wDZn8s1SwnYiYviJsEd+697LnDBCa1Yb1uXncQxGyu3bEp50AGlkRe48ztysmZ3 3T9Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1752754285; x=1753359085; h=mime-version:message-id:date:references:in-reply-to:subject:cc:to :from:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=+OKtnDxQN1rQvgUExQEfgNocGu+aFrd+PlVCR98yHgE=; b=rNOeR+5woJtmKqP5D9f/aivIGf9SN9b1ynkMADpqOYEUhI4E0lbqOjiBCCDOFMfnXL f9S3lnnVEgdpT7EeKBU6FWCUoo8xbfhT+rc/rd9v75lKE1SXHAyaVtNQAPI1CT1d4aMD kUbB9kzl2ojn3/te0jBGgrrB2TcKoUwvVGiXikdqLxEgw3nMYBIuECARU2So4E8wX+Q4 bU6KZjw3OmvUzT/E96w4CLOmsbUNiGzcLqI4eRwA/S0cQBOvgVDPfEJ29/TJUyDsnHbC A5LCmAYcAgA4JYbj/OR0HlcP3tj7Qa3ey8v2Qfupkkojz+nhmnClM7urLfo+BlxI6LS1 accQ== X-Forwarded-Encrypted: i=1; AJvYcCVzoBK9mVGAkIYSD0qHbEOik0Nnh2PWPe5LjQTTnD8lkmxrJJzEwoAdCxChrf5lt9PHrPZO5QQ=@vger.kernel.org X-Gm-Message-State: AOJu0YxVg6FLNBiheaJENERYZ2Am1SJD4ibiXttWtmPWmY5nS2jCL9Wy ghuz0f1PwkEAdzKkxn7wqdvMlE3IOoHWA7sQZvWdZfJTrBBbWQy+n3VospjwAmHXFg8= X-Gm-Gg: ASbGncvXRG5s/eHAeezYQD8ZYaUMYVExNLrDs5VHVEZriVNLnDjA2vDLhkLRS4NP8Gr RHDC5arYpBZdep/xWa5t1NsHKGsmu4+FtMTNwVHMURJunTUcecA1pbGS4A3KqiwWuztJpvtSqB/ Eym7Xlfzn6SuSKPGO4FdcIbJ3YAYwXuWAa++VvKazv65g1tW+rvTIbPsikrVlAGsY8yanWwkDPv 13S92GGsMtykEkpnzz914xFh4gD+QHYW84zf0Pqyy3oR/6BH+6VvGn6mqW0HYXe3Q+hiOBeddtO AjgW6zwJNONYobJeXguSBlIZsV+9CEkDVPMVeFwN1FUQzdw48+jst+4rOkov8H1dK3Mz+aoFDWN xe1vryxlxTzoTGLs= X-Google-Smtp-Source: AGHT+IEQBx5AReVAmevU1wjvhgFcUY3uymJWzKp1I9F2AG1oQKieVEeU4QVXRXuh/1fjL6QehswnJA== X-Received: by 2002:a17:907:b1a:b0:ae3:cc60:8cf0 with SMTP id a640c23a62f3a-ae9ce0b938cmr429270066b.34.1752754284873; Thu, 17 Jul 2025 05:11:24 -0700 (PDT) Received: from cloudflare.com ([2a09:bac5:5063:2432::39b:e5]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-ae6e7ee48f6sm1372348366b.55.2025.07.17.05.11.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 17 Jul 2025 05:11:22 -0700 (PDT) From: Jakub Sitnicki To: Jesper Dangaard Brouer Cc: bpf@vger.kernel.org, netdev@vger.kernel.org, Jakub Kicinski , lorenzo@kernel.org, Alexei Starovoitov , Daniel Borkmann , Eric Dumazet , "David S. Miller" , Paolo Abeni , sdf@fomichev.me, kernel-team@cloudflare.com, arthur@arthurfabre.com Subject: Re: [PATCH bpf-next V2 5/7] net: veth: Read xdp metadata from rx_meta struct if available In-Reply-To: <175146832628.1421237.12409230319726025813.stgit@firesoul> (Jesper Dangaard Brouer's message of "Wed, 02 Jul 2025 16:58:46 +0200") References: <175146824674.1421237.18351246421763677468.stgit@firesoul> <175146832628.1421237.12409230319726025813.stgit@firesoul> Date: Thu, 17 Jul 2025 14:11:21 +0200 Message-ID: <87a553dnkm.fsf@cloudflare.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain On Wed, Jul 02, 2025 at 04:58 PM +02, Jesper Dangaard Brouer wrote: > From: Lorenzo Bianconi > > Report xdp_rx_meta info if available in xdp_buff struct in > xdp_metadata_ops callbacks for veth driver > > Signed-off-by: Lorenzo Bianconi > --- > drivers/net/veth.c | 12 +++++++++++ > include/net/xdp.h | 57 ++++++++++++++++++++++++++++++++++++++++++++++++++++ > 2 files changed, 69 insertions(+) [...] > diff --git a/include/net/xdp.h b/include/net/xdp.h > index 3d1a9711fe82..2b495feedfb0 100644 > --- a/include/net/xdp.h > +++ b/include/net/xdp.h > @@ -158,6 +158,23 @@ static __always_inline bool xdp_buff_has_valid_meta_area(struct xdp_buff *xdp) > return !!(xdp->flags & XDP_FLAGS_META_AREA); > } > > +static __always_inline bool > +xdp_buff_has_rx_meta_hash(const struct xdp_buff *xdp) > +{ > + return !!(xdp->flags & XDP_FLAGS_META_RX_HASH); > +} > + > +static __always_inline bool > +xdp_buff_has_rx_meta_vlan(const struct xdp_buff *xdp) > +{ > + return !!(xdp->flags & XDP_FLAGS_META_RX_VLAN); > +} > + > +static __always_inline bool xdp_buff_has_rx_meta_ts(const struct xdp_buff *xdp) > +{ > + return !!(xdp->flags & XDP_FLAGS_META_RX_TS); > +} > + > static __always_inline void > xdp_init_buff(struct xdp_buff *xdp, u32 frame_sz, struct xdp_rxq_info *rxq) > { Nit: Why not have one set of generic helpers (macros) for checking if the flags are set? If you want strict type checking, you can additionally use _Generic type dispatch. [...]