linux-kernel - Re: [PATCH net-next 2/7] net: dsa: mv88e6xxx: 6185 has only 256 FDBs

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Message-ID: <20160327025225.GA15402@lunn.ch>
Date:	Sun, 27 Mar 2016 04:52:25 +0200
From:	Andrew Lunn <andrew@...n.ch>
To:	Vivien Didelot <vivien.didelot@...oirfairelinux.com>
Cc:	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	kernel@...oirfairelinux.com,
	"David S. Miller" <davem@...emloft.net>,
	Patrick Uiterwijk <patrick@...terwijk.org>,
	Guenter Roeck <linux@...ck-us.net>
Subject: Re: [PATCH net-next 2/7] net: dsa: mv88e6xxx: 6185 has only 256 FDBs

On Sat, Mar 26, 2016 at 09:59:38PM -0400, Vivien Didelot wrote:
> The 6185 family has only 256 indexable address databases, while the
> others (such as 6352) have 4095. Explicit and use these maximum values
> in the _mv88e6xxx_fid_new function.

Hi Vivien

I've been looking at the Marvell reference code, in particular, the
function gfdbGetAtuAllCount().

The following device have 16 databases.

( DEV_88E6021 | DEV_88E6060 | DEV_88E6063 |     \
  DEV_FH_VPN |  DEV_88E6083 |  DEV_88E6183 | DEV_88E6093 | DEV_88E6061 )

The following device have 64 databases.
( DEV_88E6065 )

The following devices have 256 databases
( DEV_88E6095_FAMILY | DEV_88E6185_FAMILY )

And the following devices have 4096
( DEV_88E6097_FAMILY | DEV_88E6165_FAMILY | DEV_88E6\
  351_FAMILY| DEV_88E6352_FAMILY )

  Andrew