From: David Miller <davem@davemloft.net>
To: Matheos.Worku@Sun.COM
Cc: netdev@axxeo.de, netdev@vger.kernel.org, Ariel.Hendel@Sun.COM,
Greg.Onufer@Sun.COM, jeff@garzik.org, Ashley.Saulsbury@Sun.COM
Subject: Re: [PATCH]: Third (final?) release of Sun Neptune driver
Date: Fri, 05 Oct 2007 15:43:30 -0700 (PDT) [thread overview]
Message-ID: <20071005.154330.95907448.davem@davemloft.net> (raw)
In-Reply-To: <4706B83D.40306@sun.com>
From: Matheos Worku <Matheos.Worku@Sun.COM>
Date: Fri, 05 Oct 2007 15:18:37 -0700
> >
> >> +static void niu_set_max_burst(struct niu *np, struct tx_ring_info *rp)
> >> +{
> >> + int mtu = np->dev->mtu;
> >> +
> >> + rp->max_burst = mtu + 32;
> >> + if (rp->max_burst > 4096)
> >> + rp->max_burst = 4096;
> >
> > Why 32 and 4096? (Magic values)
>
> These values were recommended by the HW designers for fair utilization
> of DRR feature among TX/RX rings.
I'll add macro defines for these, thanks for the feedback.
next prev parent reply other threads:[~2007-10-05 22:43 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-05 10:12 [PATCH]: Third (final?) release of Sun Neptune driver David Miller
2007-10-05 15:35 ` Stephen Hemminger
2007-10-05 22:49 ` David Miller
2007-10-05 22:54 ` David Miller
2007-10-05 23:31 ` Jeff Garzik
2007-10-05 22:56 ` David Miller
2007-10-05 23:07 ` David Miller
2007-10-05 23:24 ` David Miller
2007-10-05 23:32 ` Jeff Garzik
2007-10-05 23:27 ` David Miller
2007-10-05 15:39 ` Stephen Hemminger
2007-10-05 21:12 ` David Miller
2007-10-05 21:18 ` Stephen Hemminger
2007-10-05 23:30 ` David Miller
2007-10-05 15:40 ` Stephen Hemminger
2007-10-05 21:12 ` David Miller
2007-10-05 21:14 ` Jeff Garzik
2007-10-05 21:21 ` Stephen Hemminger
2007-10-05 21:40 ` David Miller
2007-10-05 21:38 ` David Miller
2007-10-05 23:42 ` David Miller
2007-10-05 15:43 ` Stephen Hemminger
2007-10-06 0:04 ` David Miller
2007-10-06 0:28 ` Stephen Hemminger
2007-10-06 0:46 ` David Miller
2007-10-06 8:32 ` Johannes Berg
2007-10-05 16:46 ` Ingo Oeser
2007-10-05 16:49 ` Ingo Oeser
2007-10-06 0:08 ` David Miller
2007-10-08 16:04 ` Oliver Hartkopp
2007-10-05 16:55 ` Jeff Garzik
2007-10-05 17:45 ` Matheos Worku
2007-10-05 21:18 ` David Miller
2007-10-05 21:20 ` David Miller
[not found] ` <470677A0.5060502@sun.com>
2007-10-05 21:24 ` David Miller
2007-10-05 22:18 ` Matheos Worku
2007-10-05 22:43 ` David Miller [this message]
2007-10-06 0:10 ` David Miller
2007-10-08 16:01 ` Oliver Hartkopp
2007-10-08 23:08 ` David Miller
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