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From: Larry Chiu <larry.chiu@realtek.com>
To: Justin Lai <justinlai0215@realtek.com>, Andrew Lunn <andrew@lunn.ch>
Cc: "kuba@kernel.org" <kuba@kernel.org>,
	"davem@davemloft.net" <davem@davemloft.net>,
	"edumazet@google.com" <edumazet@google.com>,
	"pabeni@redhat.com" <pabeni@redhat.com>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
	"jiri@resnulli.us" <jiri@resnulli.us>,
	"horms@kernel.org" <horms@kernel.org>,
	Ping-Ke Shih <pkshih@realtek.com>
Subject: RE: [PATCH net-next v19 01/13] rtase: Add pci table supported in this module
Date: Tue, 21 May 2024 06:20:04 +0000	[thread overview]
Message-ID: <e5d7a77511f746bdb0b38b6174ef5de4@realtek.com> (raw)
In-Reply-To: d840e007-c819-42df-bc71-536328d4f5d7@lunn.ch


>> + *  Below is a simplified block diagram of the chip and its relevant interfaces.
>> + *
>> + *               *************************
>> + *               *                       *
>> + *               *  CPU network device   *
>> + *               *                       *
>> + *               *   +-------------+     *
>> + *               *   |  PCIE Host  |     *
>> + *               ***********++************
>> + *                          ||
>> + *                         PCIE
>> + *                          ||
>> + *      ********************++**********************
>> + *      *            | PCIE Endpoint |             *
>> + *      *            +---------------+             *
>> + *      *                | GMAC |                  *
>> + *      *                +--++--+  Realtek         *
>> + *      *                   ||     RTL90xx Series  *
>> + *      *                   ||                     *
>> + *      *     +-------------++----------------+    *
>> + *      *     |           | MAC |             |    *
>> + *      *     |           +-----+             |    *
>> + *      *     |                               |    *
>> + *      *     |     Ethernet Switch Core      |    *
>> + *      *     |                               |    *
>> + *      *     |   +-----+           +-----+   |    *
>> + *      *     |   | MAC |...........| MAC |   |    *
>> + *      *     +---+-----+-----------+-----+---+    *
>> + *      *         | PHY |...........| PHY |        *
>> + *      *         +--++-+           +--++-+        *
>> + *      *************||****************||***********
>> + *
>> + *  The block of the Realtek RTL90xx series is our entire chip 
>> + architecture,
>> + *  the GMAC is connected to the switch core, and there is no PHY in between.
>
>Given this architecture, this driver cannot be used unless there is a switch driver as well. This driver is nearly ready to be merged. So what are your plans for the switch driver? Do you have a first version you can post? That will reassure us you do plan to release a switch driver, and not use a SDK in userspace.
>
>        Andrew

Hi Andrew,
This GMAC is configured after the switch is boot-up and does not require a switch driver to work.

  reply	other threads:[~2024-05-21  6:20 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-05-17  7:52 [PATCH net-next v19 00/13] Add Realtek automotive PCIe driver Justin Lai
2024-05-17  7:52 ` [PATCH net-next v19 01/13] rtase: Add pci table supported in this module Justin Lai
2024-05-17 13:49   ` Andrew Lunn
2024-05-21  6:20     ` Larry Chiu [this message]
2024-05-21 12:47       ` Andrew Lunn
2024-05-22  4:43         ` Larry Chiu
2024-05-22 12:37           ` Andrew Lunn
2024-05-22 14:47             ` Larry Chiu
2024-05-22 15:53               ` Andrew Lunn
2024-05-23  6:29                 ` Larry Chiu
2024-05-23 13:19                   ` Andrew Lunn
2024-05-24  3:03                     ` Larry Chiu
2024-05-25 22:44                       ` Andrew Lunn
2024-05-17  7:52 ` [PATCH net-next v19 02/13] rtase: Implement the .ndo_open function Justin Lai
2024-05-17  7:52 ` [PATCH net-next v19 03/13] rtase: Implement the rtase_down function Justin Lai
2024-05-17  7:52 ` [PATCH net-next v19 04/13] rtase: Implement the interrupt routine and rtase_poll Justin Lai
2024-05-17  7:52 ` [PATCH net-next v19 05/13] rtase: Implement hardware configuration function Justin Lai
2024-05-17  7:52 ` [PATCH net-next v19 06/13] rtase: Implement .ndo_start_xmit function Justin Lai
2024-05-17  7:52 ` [PATCH net-next v19 07/13] rtase: Implement a function to receive packets Justin Lai
2024-05-17  7:52 ` [PATCH net-next v19 08/13] rtase: Implement net_device_ops Justin Lai
2024-05-17  7:52 ` [PATCH net-next v19 09/13] rtase: Implement pci_driver suspend and resume function Justin Lai
2024-05-17  7:52 ` [PATCH net-next v19 10/13] rtase: Implement ethtool function Justin Lai
2024-05-17 13:32   ` Andrew Lunn
2024-05-17  7:53 ` [PATCH net-next v19 11/13] rtase: Add a Makefile in the rtase folder Justin Lai
2024-05-17 13:33   ` Andrew Lunn
2024-05-17  7:53 ` [PATCH net-next v19 12/13] realtek: Update the Makefile and Kconfig in the realtek folder Justin Lai
2024-05-17 13:34   ` Andrew Lunn
2024-05-17  7:53 ` [PATCH net-next v19 13/13] MAINTAINERS: Add the rtase ethernet driver entry Justin Lai
2024-05-17 13:40   ` Andrew Lunn

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