From patchwork Wed Nov 6 09:17:07 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: MD Danish Anwar X-Patchwork-Id: 13864236 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 4675FD3E798 for ; Wed, 6 Nov 2024 09:44:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type: Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date :Subject:CC:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=7pYI8kQhzLjk8qhIVY25r6ky5/FBxidxa1N2CUq2AxI=; b=4rVDNx2A8EFJK6qhDpr25Sq/uI B8WRW+rITiMMw/+FiEhaifmvY+DeHvyfs2pBrAe1zTZR5tEXgAVNxXic2QjwfSCnCHiz+6kP41gwL l/XZIlOn945PvET1AxbzUPM9ZfnGpeQTlupb/JGi80WypmBWwixIQLkVkWKDM6Kv19dW4iNsS34z8 T+BFDDWVus0oeB4Jp+EL86lYhbdkap3jBa8tDOHSpvftSvpA9HbQvqtujQccRf9fYALw1rZJOeSyE 81wXNYi5+KlHB6HEPeySgPKGbzURmg3PCQ9l+Qr3gJKiEqznmSkouVgTrP0XWWnXfdTO4FYG2FQ67 HNTA7U7g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1t8cag-00000002ba3-385s; Wed, 06 Nov 2024 09:44:42 +0000 Received: from fllv0016.ext.ti.com ([198.47.19.142]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1t8cAJ-00000002TFD-0cqF for linux-arm-kernel@lists.infradead.org; Wed, 06 Nov 2024 09:17:28 +0000 Received: from lelv0265.itg.ti.com ([10.180.67.224]) by fllv0016.ext.ti.com (8.15.2/8.15.2) with ESMTP id 4A69HFOL110698; Wed, 6 Nov 2024 03:17:15 -0600 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1730884635; bh=7pYI8kQhzLjk8qhIVY25r6ky5/FBxidxa1N2CUq2AxI=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=fVEYmXbltt8Xc7Xm+CpIDL0w0E6bHBXl6InclwWRsf4S6VZdDZB1W+IN1JfI5utqJ +uiqSYH1wxPcCA31bc9T2sJYI1pr/qM5+JTU+K+Urs6qF+A7iz7SmRWp9T+8M5sp0M jyR8yG2HS7/v6NlLg9nf1WtP1mGHYL5fcIw2Ndf0= Received: from DFLE114.ent.ti.com (dfle114.ent.ti.com [10.64.6.35]) by lelv0265.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 4A69HFVt016164 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 6 Nov 2024 03:17:15 -0600 Received: from DFLE112.ent.ti.com (10.64.6.33) by DFLE114.ent.ti.com (10.64.6.35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23; Wed, 6 Nov 2024 03:17:15 -0600 Received: from fllvsmtp7.itg.ti.com (10.64.40.31) by DFLE112.ent.ti.com (10.64.6.33) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23 via Frontend Transport; Wed, 6 Nov 2024 03:17:15 -0600 Received: from fllv0122.itg.ti.com (fllv0122.itg.ti.com [10.247.120.72]) by fllvsmtp7.itg.ti.com (8.15.2/8.15.2) with ESMTP id 4A69HFic081211; Wed, 6 Nov 2024 03:17:15 -0600 Received: from localhost (danish-tpc.dhcp.ti.com [10.24.69.25]) by fllv0122.itg.ti.com (8.14.7/8.14.7) with ESMTP id 4A69HEcK020781; Wed, 6 Nov 2024 03:17:14 -0600 From: MD Danish Anwar To: , , , , , , , , , , , , , , CC: , , , , , Vignesh Raghavendra , Roger Quadros , Subject: [PATCH net-next v3 1/4] net: hsr: Add VLAN support Date: Wed, 6 Nov 2024 14:47:07 +0530 Message-ID: <20241106091710.3308519-2-danishanwar@ti.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241106091710.3308519-1-danishanwar@ti.com> References: <20241106091710.3308519-1-danishanwar@ti.com> MIME-Version: 1.0 X-C2ProcessedOrg: 333ef613-75bf-4e12-a4b1-8e3623f5dcea X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241106_011727_441600_BA50468F X-CRM114-Status: GOOD ( 17.70 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: WingMan Kwok Add support for creating VLAN interfaces over HSR/PRP interface. Signed-off-by: WingMan Kwok Signed-off-by: Murali Karicheri Signed-off-by: MD Danish Anwar --- net/hsr/hsr_device.c | 5 ----- net/hsr/hsr_forward.c | 19 ++++++++++++++----- 2 files changed, 14 insertions(+), 10 deletions(-) diff --git a/net/hsr/hsr_device.c b/net/hsr/hsr_device.c index ebdfd5b64e17..0ca47ebb01d3 100644 --- a/net/hsr/hsr_device.c +++ b/net/hsr/hsr_device.c @@ -572,11 +572,6 @@ void hsr_dev_setup(struct net_device *dev) NETIF_F_HW_VLAN_CTAG_TX; dev->features = dev->hw_features; - - /* VLAN on top of HSR needs testing and probably some work on - * hsr_header_create() etc. - */ - dev->features |= NETIF_F_VLAN_CHALLENGED; } /* Return true if dev is a HSR master; return false otherwise. diff --git a/net/hsr/hsr_forward.c b/net/hsr/hsr_forward.c index b38060246e62..aa6acebc7c1e 100644 --- a/net/hsr/hsr_forward.c +++ b/net/hsr/hsr_forward.c @@ -280,6 +280,7 @@ static struct sk_buff *hsr_fill_tag(struct sk_buff *skb, struct hsr_port *port, u8 proto_version) { struct hsr_ethhdr *hsr_ethhdr; + unsigned char *pc; int lsdu_size; /* pad to minimum packet size which is 60 + 6 (HSR tag) */ @@ -290,7 +291,18 @@ static struct sk_buff *hsr_fill_tag(struct sk_buff *skb, if (frame->is_vlan) lsdu_size -= 4; - hsr_ethhdr = (struct hsr_ethhdr *)skb_mac_header(skb); + pc = skb_mac_header(skb); + if (frame->is_vlan) + /* This 4-byte shift (size of a vlan tag) does not + * mean that the ethhdr starts there. But rather it + * provides the proper environment for accessing + * the fields, such as hsr_tag etc., just like + * when the vlan tag is not there. This is because + * the hsr tag is after the vlan tag. + */ + hsr_ethhdr = (struct hsr_ethhdr *)(pc + VLAN_HLEN); + else + hsr_ethhdr = (struct hsr_ethhdr *)pc; hsr_set_path_id(hsr_ethhdr, port); set_hsr_tag_LSDU_size(&hsr_ethhdr->hsr_tag, lsdu_size); @@ -368,7 +380,7 @@ struct sk_buff *prp_create_tagged_frame(struct hsr_frame_info *frame, return skb_clone(frame->skb_std, GFP_ATOMIC); } - skb = skb_copy_expand(frame->skb_std, 0, + skb = skb_copy_expand(frame->skb_std, skb_headroom(frame->skb_std), skb_tailroom(frame->skb_std) + HSR_HLEN, GFP_ATOMIC); return prp_fill_rct(skb, frame, port); @@ -690,9 +702,6 @@ static int fill_frame_info(struct hsr_frame_info *frame, if (frame->is_vlan) { vlan_hdr = (struct hsr_vlan_ethhdr *)ethhdr; proto = vlan_hdr->vlanhdr.h_vlan_encapsulated_proto; - /* FIXME: */ - netdev_warn_once(skb->dev, "VLAN not yet supported"); - return -EINVAL; } frame->is_from_san = false;