From: Dan Malek <dan@embeddededge.com>
To: acurtis@onz.com
Cc: linuxppc-dev@lists.linuxppc.org
Subject: Re: 8260 and skb implementation
Date: Tue, 07 May 2002 11:53:46 -0400 [thread overview]
Message-ID: <3CD7F88A.5000205@embeddededge.com> (raw)
In-Reply-To: NCBBIINEHIPFGJPLBEIFKEJPDGAA.acurtis@onz.com
Allen Curtis wrote:
> We have an 8260 based product and have many production boards with pre-B.3
> rev processors. As mentioned on this list, we had to modify all CP related
> communications to operate from local RAM to avoid lock-up problems.
I don't remember why you had to do this........
> ....Has anyone
> considered moving the SKB memory into local RAM as well? ....
Yes, except I have never had a platform with a working local bus interface
where this would work.
> ..... we
> have 8MB of local RAM. Is this a reasonable amount of memory for SKB..
Should be plenty. If you have this much data backed up in the protocol
stack you have big trouble elsewhere. The only failure mode is the
driver will start dropping receive packets if it can't allocate a buffer.
-- Dan
** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2002-05-07 15:53 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-05-07 14:34 8260 and skb implementation Allen Curtis
2002-05-07 15:53 ` Dan Malek [this message]
2002-05-08 5:17 ` Allen Curtis
2002-05-08 5:51 ` Dan Malek
2002-05-08 14:18 ` Allen Curtis
2002-05-08 15:21 ` Dan Malek
2002-05-09 1:09 ` Paul Mackerras
2002-05-09 16:26 ` Dan Malek
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