netdev - Re: 2.6.20-rc1 sky2 problems (regression?)

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Message-ID: <87mz5qnf5q.fsf@sycorax.lbl.gov>
Date:	Thu, 14 Dec 2006 17:04:01 -0800
From:	Alex Romosan <romosan@...orax.lbl.gov>
To:	Stephen Hemminger <shemminger@...l.org>
Cc:	netdev@...r.kernel.org
Subject: Re: 2.6.20-rc1 sky2 problems (regression?)

Stephen Hemminger <shemminger@...l.org> writes:

> If this is repeatable... and mac_pause is always one then the
> problem is hardware flow control.  I saw bugs before in the bus
> interface where it would not resume on unaligned buffer, but
> that was on receive.

i tried to switch over to the latest vendor driver but unfortunately
it doesn't work with kernel 2.6.19+. it still uses CHECKSUM_HW which
looks like it was replaced by CHECKSUM_PARTIAL and CHECKSUM_COMPLETE
was also added. i think i can replace CHECKSUM_HW in the marvell
driver with CHECKSUM_PARTIAL, except for a couple of places where i
i am not sure what i am supposed to do. the first instance it says (i
am kind of paraphrasing here since i am copying from the screen and
not cutting and pasting):

/** does the HW need to evaluate checksum for TCP or UDP packets?
if (pMessage->ip_summed == CHECKSUM_HW)

maybe this needs to be replace with CHECKSUM_PARTIAL. the second one

/** TCP checksum offload
if ((pSKPacket->pMbuf->ip_summed == CHECKSUM_HW) &&
(SetOpcodePacketFlag == SK_TRUE)

i wonder if this is supposed to be CHECKSUM_COMPLETE

if you have any suggestions, i'll appreciate it.

--alex--

-- 
| I believe the moment is at hand when, by a paranoiac and active |
|  advance of the mind, it will be possible (simultaneously with  |
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|  and thus to help to discredit completely the world of reality. |
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