From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.151]) by mail.toke.dk (Postfix) with ESMTPS id 6B450A24B99 for ; Thu, 24 Aug 2023 21:34:30 +0200 (CEST) Authentication-Results: mail.toke.dk; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=k2MlM0lL DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1692905670; x=1724441670; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=CUxxhqkl+Ex1qgH0qus/XMXsPO/e1+lJ9YTcuZMfzCQ=; b=k2MlM0lLJ4HqtMEZVasCgULlXLODpD3xZna31yXfXtwJYMkts8u+lnsJ XKJ5QHHeyvFe0hvMhyniRwyMHcLQ3R7UV1s0GFEk62nWaJnmraNeNGZg0 jMraOWWkJoEBCqDUjLp76519UizUWJceMXCV6deAQtFixTcNgL2Kqo2Wa 75lsrGIOElvDYWZfUhHwxJ+4F5hY7eE2IeU0qz5W+USPioW+VU2fM9Q4m yRMpf/YyVAF5mp/dlpcK6f3deCbnQmtxKXYOqxUAzb1XXBzpn/YBp2l7v EBWQVmvdeqw84pJVfaYc6WcIAQbAp733q88T0zPFhwr8+oTzSxVJoTiww Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10812"; a="354865423" X-IronPort-AV: E=Sophos;i="6.02,195,1688454000"; d="scan'208";a="354865423" Received: from orsmga004.jf.intel.com ([10.7.209.38]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Aug 2023 12:34:29 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10812"; a="860830560" X-IronPort-AV: E=Sophos;i="6.02,195,1688454000"; d="scan'208";a="860830560" Received: from irvmail002.ir.intel.com ([10.43.11.120]) by orsmga004.jf.intel.com with ESMTP; 24 Aug 2023 12:34:23 -0700 Received: from lincoln.igk.intel.com (lincoln.igk.intel.com [10.102.21.235]) by irvmail002.ir.intel.com (Postfix) with ESMTP id 37B3A33EAF; Thu, 24 Aug 2023 20:34:22 +0100 (IST) From: Larysa Zaremba To: bpf@vger.kernel.org Date: Thu, 24 Aug 2023 21:26:56 +0200 Message-ID: <20230824192703.712881-18-larysa.zaremba@intel.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230824192703.712881-1-larysa.zaremba@intel.com> References: <20230824192703.712881-1-larysa.zaremba@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Message-ID-Hash: FV53NEUUZGNA2T76V763NU7LJZMSPPMI X-Message-ID-Hash: FV53NEUUZGNA2T76V763NU7LJZMSPPMI X-MailFrom: larysa.zaremba@intel.com X-Mailman-Rule-Hits: member-moderation X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address CC: Larysa Zaremba , ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org, martin.lau@linux.dev, song@kernel.org, yhs@fb.com, john.fastabend@gmail.com, kpsingh@kernel.org, sdf@google.com, haoluo@google.com, jolsa@kernel.org, David Ahern , Jakub Kicinski , Willem de Bruijn , Jesper Dangaard Brouer , Anatoly Burakov , Alexander Lobakin , Magnus Karlsson , Maryam Tahhan , xdp-hints@xdp-project.net, netdev@vger.kernel.org, Willem de Bruijn , Alexei Starovoitov , Simon Horman , Tariq Toukan , Saeed Mahameed X-Mailman-Version: 3.3.8 Precedence: list Subject: [xdp-hints] [RFC bpf-next 17/23] veth: Implement VLAN tag and checksum XDP hint List-Id: XDP hardware hints design discussion Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: In order to test VLAN tag and checksum XDP hints in hardware-independent selftests, implement newly added XDP hints in veth driver. Signed-off-by: Larysa Zaremba --- drivers/net/veth.c | 42 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) diff --git a/drivers/net/veth.c b/drivers/net/veth.c index 953f6d8f8db0..f3ee85aa5edf 100644 --- a/drivers/net/veth.c +++ b/drivers/net/veth.c @@ -1732,6 +1732,46 @@ static int veth_xdp_rx_hash(const struct xdp_md *ctx, u32 *hash, return 0; } +static int veth_xdp_rx_vlan_tag(const struct xdp_md *ctx, u16 *vlan_tci, + __be16 *vlan_proto) +{ + struct veth_xdp_buff *_ctx = (void *)ctx; + struct sk_buff *skb = _ctx->skb; + int err; + + if (!skb) + return -ENODATA; + + err = __vlan_hwaccel_get_tag(skb, vlan_tci); + if (err) + return err; + + *vlan_proto = skb->vlan_proto; + return err; +} + +static int veth_xdp_rx_csum(const struct xdp_md *ctx, + enum xdp_csum_status *csum_status, + __wsum *csum) +{ + struct veth_xdp_buff *_ctx = (void *)ctx; + struct sk_buff *skb = _ctx->skb; + + if (!skb) + return -ENODATA; + + if (skb->ip_summed == CHECKSUM_UNNECESSARY) { + *csum_status = XDP_CHECKSUM_VERIFIED; + } else if (skb->ip_summed == CHECKSUM_COMPLETE) { + *csum_status = XDP_CHECKSUM_COMPLETE; + *csum = skb->csum; + } else { + return -ENODATA; + } + + return 0; +} + static const struct net_device_ops veth_netdev_ops = { .ndo_init = veth_dev_init, .ndo_open = veth_open, @@ -1756,6 +1796,8 @@ static const struct net_device_ops veth_netdev_ops = { static const struct xdp_metadata_ops veth_xdp_metadata_ops = { .xmo_rx_timestamp = veth_xdp_rx_timestamp, .xmo_rx_hash = veth_xdp_rx_hash, + .xmo_rx_vlan_tag = veth_xdp_rx_vlan_tag, + .xmo_rx_csum = veth_xdp_rx_csum, }; #define VETH_FEATURES (NETIF_F_SG | NETIF_F_FRAGLIST | NETIF_F_HW_CSUM | \ -- 2.41.0