From: Adam Kropelin <akropel1@rochester.rr.com>
To: philippe.seewer@bfh.ch
Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
tsbogend@alpha.franken.de
Subject: Re: [PATCH 2/2] pcnet32: PHY selection support
Date: Fri, 17 Feb 2006 13:49:38 -0500 [thread overview]
Message-ID: <20060217134938.B24429@mail.kroptech.com> (raw)
In-Reply-To: <43F5F672.9080904@bfh.ch>
Seewer Philippe wrote:
> Most AMD pcnet chips support up to 32 external PHYs. This patch
> introduces basic PHY selection/switching support, by adding two
> new module parameters:
> -maxphy: how many PHYs the card supports
> -usephy: which phy to use instead of eeprom default
>
> Maxphy is necessary in order to check the range of usephy and may
> be overriden inside the module.
It seems a bit pointless for the range check of a user-supplied value to
be driven by another user-supplied value.
> If only maxphy is present I've implemented an algorithm which checks
> the link state on all PHYs and uses the one that has a link.
Knowing how many PHYs to scan is potentially useful, but how about
determining that at runtime? Missing PHYs should be detectable with a
timeout or similar. Too risky?
--Adam
next prev parent reply other threads:[~2006-02-17 17:57 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-02-17 16:14 [PATCH 2/2] pcnet32: PHY selection support Seewer Philippe
2006-02-17 18:49 ` Adam Kropelin [this message]
2006-02-17 19:56 ` Seewer Philippe
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