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From: "Alvin Šipraga" <alvin@pqrs.dk>
To: Linus Walleij <linus.walleij@linaro.org>,
	Andrew Lunn <andrew@lunn.ch>,
	Vivien Didelot <vivien.didelot@gmail.com>,
	Florian Fainelli <f.fainelli@gmail.com>,
	Vladimir Oltean <olteanv@gmail.com>,
	"David S. Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>,
	Rob Herring <robh+dt@kernel.org>,
	Heiner Kallweit <hkallweit1@gmail.com>,
	Russell King <linux@armlinux.org.uk>
Cc: "Alvin Šipraga" <alsi@bang-olufsen.dk>,
	netdev@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH net-next 1/6] ether: add EtherType for proprietary Realtek protocols
Date: Tue, 12 Oct 2021 14:35:50 +0200	[thread overview]
Message-ID: <20211012123557.3547280-2-alvin@pqrs.dk> (raw)
In-Reply-To: <20211012123557.3547280-1-alvin@pqrs.dk>

From: Alvin Šipraga <alsi@bang-olufsen.dk>

Add a new EtherType ETH_P_REALTEK to the if_ether.h uapi header. The
EtherType 0x8899 is used in a number of different protocols from Realtek
Semiconductor Corp [1], so no general assumptions should be made when
trying to decode such packets. Observed protocols include:

  0x1 - Realtek Remote Control protocol [2]
  0x2 - Echo protocol [2]
  0x3 - Loop detection protocol [2]
  0x4 - RTL8365MB 4- and 8-byte switch CPU tag protocols [3]
  0x9 - RTL8306 switch CPU tag protocol [4]
  0xA - RTL8366RB switch CPU tag protocol [4]

[1] https://lore.kernel.org/netdev/CACRpkdYQthFgjwVzHyK3DeYUOdcYyWmdjDPG=Rf9B3VrJ12Rzg@mail.gmail.com/
[2] https://www.wireshark.org/lists/ethereal-dev/200409/msg00090.html
[3] https://lore.kernel.org/netdev/20210822193145.1312668-4-alvin@pqrs.dk/
[4] https://lore.kernel.org/netdev/20200708122537.1341307-2-linus.walleij@linaro.org/

Suggested-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Alvin Šipraga <alsi@bang-olufsen.dk>
---

RFC -> v1: this patch is new

 include/uapi/linux/if_ether.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/uapi/linux/if_ether.h b/include/uapi/linux/if_ether.h
index 5f589c7a8382..5da4ee234e0b 100644
--- a/include/uapi/linux/if_ether.h
+++ b/include/uapi/linux/if_ether.h
@@ -86,6 +86,7 @@
 					 * over Ethernet
 					 */
 #define ETH_P_PAE	0x888E		/* Port Access Entity (IEEE 802.1X) */
+#define ETH_P_REALTEK	0x8899          /* Multiple proprietary protocols */
 #define ETH_P_AOE	0x88A2		/* ATA over Ethernet		*/
 #define ETH_P_8021AD	0x88A8          /* 802.1ad Service VLAN		*/
 #define ETH_P_802_EX1	0x88B5		/* 802.1 Local Experimental 1.  */
-- 
2.32.0


  reply	other threads:[~2021-10-12 12:37 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-12 12:35 [PATCH net-next 0/6] net: dsa: add support for RTL8365MB-VC Alvin Šipraga
2021-10-12 12:35 ` Alvin Šipraga [this message]
2021-10-12 13:09   ` [PATCH net-next 1/6] ether: add EtherType for proprietary Realtek protocols Vladimir Oltean
2021-10-12 12:35 ` [PATCH net-next 2/6] net: dsa: move NET_DSA_TAG_RTL4_A to right place in Kconfig/Makefile Alvin Šipraga
2021-10-12 12:42   ` Vladimir Oltean
2021-10-13 10:50   ` Linus Walleij
2021-10-12 12:35 ` [PATCH net-next 3/6] dt-bindings: net: dsa: realtek-smi: document new compatible rtl8365mb Alvin Šipraga
2021-10-12 12:35 ` [PATCH net-next 4/6] net: dsa: tag_rtl8_4: add realtek 8 byte protocol 4 tag Alvin Šipraga
2021-10-12 12:50   ` Vladimir Oltean
2021-10-12 12:56     ` Alvin Šipraga
2021-10-13  9:45   ` DENG Qingfang
2021-10-13  9:52     ` Alvin Šipraga
2021-10-13 11:02   ` Linus Walleij
2021-10-12 12:35 ` [PATCH net-next 5/6] net: dsa: realtek-smi: add rtl8365mb subdriver for RTL8365MB-VC Alvin Šipraga
2021-10-12 13:04   ` Vladimir Oltean
2021-10-12 13:22     ` Alvin Šipraga
2021-10-12 13:50       ` Alvin Šipraga
2021-10-12 14:03         ` Vladimir Oltean
2021-10-12 14:30           ` Alvin Šipraga
2021-10-12 15:27   ` Jakub Kicinski
2021-10-13  8:33     ` Alvin Šipraga
2021-10-13 15:13       ` Jakub Kicinski
2021-10-14 12:44         ` Alvin Šipraga
2021-10-14 14:08           ` Jakub Kicinski
2021-10-13  9:55   ` DENG Qingfang
2021-10-13 10:05     ` Alvin Šipraga
2021-10-13 10:10       ` Vladimir Oltean
2021-10-13 10:13       ` DENG Qingfang
2021-10-13 15:12   ` Linus Walleij
2021-10-14 12:11     ` Alvin Šipraga
2021-10-12 12:35 ` [PATCH net-next 6/6] net: phy: realtek: add support for RTL8365MB-VC internal PHYs Alvin Šipraga

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