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: 841230 Received: from fllv0016.ext.ti.com (fllv0016.ext.ti.com [198.47.19.142]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 005B0183CD6; Wed, 6 Nov 2024 09:17:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.47.19.142 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730884665; cv=none; b=jCk8pqAnz9BsysjeBGjVWKc0vQeBAE4B1tEOR/KGk9FQnm0ifpbsgV3R43KZbx5c5KXrvPT9ujAjLI5DsegcumfAtVPD5s5O3DNLIG3LdI7EIKC92TF5owF6gWRLyBdrL08xnDoo4REdSgd9nBtonzrAWFluVi76esU/2Zl1slo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730884665; c=relaxed/simple; bh=dIAxm1szg0eXxoUrHaRJyEkFiqNB1EbdiqdWK0Q3L7Q=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=ctbqCFbbB/3a2AyWMvwsTXqyXsNSxPP8b2vzu7Z6Ua0YoO4QrIB0EeeKjVoXJbEdRcfv3ELekJbfclJMofiEKpkX+iUUP53ecx8+IOengvf1XFwAa6TJWaN4RZJJcB119KhPS7dXwpXmmID2Xn1RQdKnVmNZuRq4/rAxmCiPuPk= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=ti.com; spf=pass smtp.mailfrom=ti.com; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b=fVEYmXbl; arc=none smtp.client-ip=198.47.19.142 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=ti.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ti.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="fVEYmXbl" 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> Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-C2ProcessedOrg: 333ef613-75bf-4e12-a4b1-8e3623f5dcea 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;