RE: [PATCH RFC] Update documentation for KSZ DSA drivers so that new drivers can be added
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Date: 2017-09-08 19:49:33
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-----Original Message----- From: Maxim Uvarov [mailto:muvarov@gmail.com] Sent: Friday, September 08, 2017 12:00 PM To: Florian Fainelli Cc: Tristram Ha - C24268; Andrew Lunn; Pavel Machek; Nathan Conrad; Vivien Didelot; netdev; linux-kernel@vger.kernel.org; Woojung Huh - C21699 Subject: Re: [PATCH RFC] Update documentation for KSZ DSA drivers so that new drivers can be added 2017-09-08 21:48 GMT+03:00 Florian Fainelli [off-list ref]:quoted
On 09/07/2017 02:11 PM, Tristram.Ha@microchip.com wrote:quoted
From: Tristram Ha <redacted> Add other KSZ switches support so that patch check does not complain. Signed-off-by: Tristram Ha <redacted> --- Documentation/devicetree/bindings/net/dsa/ksz.txt | 117 ++++++++++++---------- 1 file changed, 62 insertions(+), 55 deletions(-)diff --git a/Documentation/devicetree/bindings/net/dsa/ksz.txtb/Documentation/devicetree/bindings/net/dsa/ksz.txt index 0ab8b39..34af0e0 100644--- a/Documentation/devicetree/bindings/net/dsa/ksz.txt +++ b/Documentation/devicetree/bindings/net/dsa/ksz.txt@@ -3,8 +3,15 @@ Microchip KSZ Series Ethernet switches Required properties: -- compatible: For external switch chips, compatible string must beexactly one - of: "microchip,ksz9477" +- compatible: Should be "microchip,ksz9477" for KSZ9477 chip, + "microchip,ksz8795" for KSZ8795 chip, + "microchip,ksz8794" for KSZ8794 chip, + "microchip,ksz8765" for KSZ8765 chip, + "microchip,ksz8895" for KSZ8895 chip, + "microchip,ksz8864" for KSZ8864 chip, + "microchip,ksz8873" for KSZ8873 chip, + "microchip,ksz8863" for KSZ8863 chip, + "microchip,ksz8463" for KSZ8463 chipTristram, does any of this devices support chaining? Maxim.
They do not if you mean daisy-chaining the switches together. There is always a problem that once tail tagging mode is enabled sending a frame through the MAC without going through the DSA layer will cause the frame to be dropped.