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From: David Miller <davem@davemloft.net>
To: mchan@broadcom.com
Cc: ravinandan.arakali@neterion.com, herbert@gondor.apana.org.au,
	netdev@vger.kernel.org, steve.arden@neterion.com,
	Dan.Reader@neterion.com, leonid.grossman@neterion.com,
	ananda.raju@neterion.com
Subject: Re: [PATCH]NET: Add ECN support for TSO
Date: Thu, 13 Jul 2006 22:03:30 -0700 (PDT)	[thread overview]
Message-ID: <20060713.220330.118526029.davem@davemloft.net> (raw)
In-Reply-To: <1551EAE59135BE47B544934E30FC4FC093F9C3@NT-IRVA-0751.brcm.ad.broadcom.com>

From: "Michael Chan" <mchan@broadcom.com>
Date: Thu, 13 Jul 2006 12:35:37 -0700

> When RFC3540 is implemented, the stack will randomly use ECT(0) or
> ECT(1) on the TSO super segments.  On each of these super segments,
> the hardware will replicate the ECT code point.  This will keep
> everything stateless.  The stack only needs to know the TSO factor
> (number of divided segements) for each TSO super segement to keep
> track of the NS.

Correct, and this is all transparent to the device as long
as it replicates the ECT bit in every sub-frame.

The only real issues are on receive for LRO where the parity
of NS needs to be maintained.

  reply	other threads:[~2006-07-14  5:03 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-07-13 19:35 [PATCH]NET: Add ECN support for TSO Michael Chan
2006-07-14  5:03 ` David Miller [this message]
  -- strict thread matches above, loose matches on Subject: below --
2006-07-14 16:12 Dan Reader
2006-07-26 19:40 ` Michael Chan
2006-07-12  4:53 Michael Chan
2006-07-12  6:11 ` David Miller
2006-07-12 17:15   ` Ravinandan Arakali
2006-07-08  1:01 Michael Chan
2006-07-08 20:32 ` David Miller
2006-07-12  1:45   ` Ravinandan Arakali
2006-07-12  1:51     ` David Miller
2006-07-13 17:26   ` Ravinandan Arakali
2006-07-07 20:57 Michael Chan
2006-07-07 21:59 ` David Miller
2006-07-07 22:52   ` David Miller
2006-06-28  3:06 Michael Chan
2006-06-28  3:10 ` Herbert Xu
2006-06-28  3:40   ` Michael Chan
2006-06-28  3:48     ` Herbert Xu
2006-06-28  4:37       ` Michael Chan
2006-06-28  4:42         ` Herbert Xu
2006-06-28  4:54           ` Michael Chan
2006-06-28  4:57             ` Herbert Xu
2006-06-29 19:30         ` David Miller
2006-07-07 18:56 ` Ravinandan Arakali

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