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From: Oleksij Rempel <o.rempel@pengutronix.de>
To: barebox@lists.infradead.org
Cc: Oleksij Rempel <o.rempel@pengutronix.de>
Subject: [PATCH v3 05/12] net: port part of if_vlan header from kernel v5.17
Date: Thu,  7 Apr 2022 11:15:57 +0200	[thread overview]
Message-ID: <20220407091604.956577-6-o.rempel@pengutronix.de> (raw)
In-Reply-To: <20220407091604.956577-1-o.rempel@pengutronix.de>

This header is needed for SJA11xx switch driver

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
---
 include/linux/if_vlan.h | 56 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 56 insertions(+)
 create mode 100644 include/linux/if_vlan.h

diff --git a/include/linux/if_vlan.h b/include/linux/if_vlan.h
new file mode 100644
index 0000000000..9e54685064
--- /dev/null
+++ b/include/linux/if_vlan.h
@@ -0,0 +1,56 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * VLAN		An implementation of 802.1Q VLAN tagging.
+ *
+ * Authors:	Ben Greear <greearb@candelatech.com>
+ */
+#ifndef _LINUX_IF_VLAN_H_
+#define _LINUX_IF_VLAN_H_
+
+#define VLAN_HLEN	4		/* The additional bytes required by VLAN
+					 * (in addition to the Ethernet header)
+					 */
+#define VLAN_ETH_HLEN	18		/* Total octets in header.	 */
+#define VLAN_ETH_ZLEN	64		/* Min. octets in frame sans FCS */
+
+/*
+ * According to 802.3ac, the packet can be 4 bytes longer. --Klika Jan
+ */
+#define VLAN_ETH_DATA_LEN	1500	/* Max. octets in payload	 */
+#define VLAN_ETH_FRAME_LEN	1518	/* Max. octets in frame sans FCS */
+
+#define VLAN_MAX_DEPTH	8		/* Max. number of nested VLAN tags parsed */
+
+/*
+ * 	struct vlan_hdr - vlan header
+ * 	@h_vlan_TCI: priority and VLAN ID
+ *	@h_vlan_encapsulated_proto: packet type ID or len
+ */
+struct vlan_hdr {
+	__be16	h_vlan_TCI;
+	__be16	h_vlan_encapsulated_proto;
+};
+
+/**
+ *	struct vlan_ethhdr - vlan ethernet header (ethhdr + vlan_hdr)
+ *	@h_dest: destination ethernet address
+ *	@h_source: source ethernet address
+ *	@h_vlan_proto: ethernet protocol
+ *	@h_vlan_TCI: priority and VLAN ID
+ *	@h_vlan_encapsulated_proto: packet type ID or len
+ */
+struct vlan_ethhdr {
+	unsigned char	h_dest[ETH_ALEN];
+	unsigned char	h_source[ETH_ALEN];
+	__be16		h_vlan_proto;
+	__be16		h_vlan_TCI;
+	__be16		h_vlan_encapsulated_proto;
+};
+
+#define VLAN_PRIO_MASK		0xe000 /* Priority Code Point */
+#define VLAN_PRIO_SHIFT		13
+#define VLAN_CFI_MASK		0x1000 /* Canonical Format Indicator / Drop Eligible Indicator */
+#define VLAN_VID_MASK		0x0fff /* VLAN Identifier */
+#define VLAN_N_VID		4096
+
+#endif /* !(_LINUX_IF_VLAN_H_) */
-- 
2.30.2


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  parent reply	other threads:[~2022-04-07  9:41 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-07  9:15 [PATCH v3 00/12] provide DSA support Oleksij Rempel
2022-04-07  9:15 ` [PATCH v3 01/12] net: add RX preprocessor support Oleksij Rempel
2022-04-07  9:15 ` [PATCH v3 02/12] net: add of_find_eth_device_by_node() function Oleksij Rempel
2022-04-07 13:36   ` Sascha Hauer
2022-04-07  9:15 ` [PATCH v3 03/12] net: add DSA framework to support basic switch functionality Oleksij Rempel
2022-04-07 13:56   ` Sascha Hauer
2022-04-12  8:14   ` Sascha Hauer
2022-04-07  9:15 ` [PATCH v3 04/12] driver: add dev_get_priv() helper Oleksij Rempel
2022-04-07  9:15 ` Oleksij Rempel [this message]
2022-04-07  9:15 ` [PATCH v3 06/12] spi: port spi_sync_transfer() function from kernel v5.17 Oleksij Rempel
2022-04-07  9:15 ` [PATCH v3 07/12] net: mdio: add MDIO_DEVAD_NONE define Oleksij Rempel
2022-04-07  9:16 ` [PATCH v3 08/12] net: phy: make sure MDIO bus is probed if we search for the PHY Oleksij Rempel
2022-04-07  9:16 ` [PATCH v3 09/12] of_net: add rev-rmii support Oleksij Rempel
2022-04-07  9:16 ` [PATCH v3 10/12] net: dsa: add support for SJA11xx switches Oleksij Rempel
2022-04-07 14:04   ` Sascha Hauer
2022-04-07  9:16 ` [PATCH v3 11/12] net: dsa: add KSZ9477 switch SPI driver Oleksij Rempel
2022-04-07 14:27   ` Sascha Hauer
2022-04-07  9:16 ` [PATCH v3 12/12] add ethlog Oleksij Rempel

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