netdev - Re: [PATCH v4 net-next 5/6] net: dsa: microchip: break KSZ9477 DSA driver into two files

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Date:   Mon, 3 Dec 2018 13:49:30 +0000
From:   Sørensen, Stefan 
        <Stefan.Sorensen@...ctralink.com>
To:     "davem@...emloft.net" <davem@...emloft.net>,
        "Tristram.Ha@...rochip.com" <Tristram.Ha@...rochip.com>
CC:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "pavel@....cz" <pavel@....cz>,
        "f.fainelli@...il.com" <f.fainelli@...il.com>,
        "UNGLinuxDriver@...rochip.com" <UNGLinuxDriver@...rochip.com>,
        "andrew@...n.ch" <andrew@...n.ch>
Subject: Re: [PATCH v4 net-next 5/6] net: dsa: microchip: break KSZ9477 DSA
 driver into two files

On Tue, 2018-11-20 at 15:55 -0800, Tristram.Ha@...rochip.com wrote:
> From: Tristram Ha <Tristram.Ha@...rochip.com>
> 
> Break KSZ9477 DSA driver into two files in preparation to add more
> KSZ switch drivers.
> Add common functions in ksz_common.h so that other KSZ switch drivers
> can access code in ksz_common.c.
> Add ksz_spi.h for common functions used by KSZ switch SPI drivers.

With this patch, the ethernet on my EVB-KSZ9477 is now completely non-
functional, link is detected on the LAN ports, but no packets are
forwarded to/from the CPU port.

Looking through the patch, it does much more than splitting up the
existing code, e.g. the PORT_VLAN_MEMBERSHIP register is now written to
- I suspect that change may be responsible for the problem.


Stefan