From: Eric Dumazet <eric.dumazet@gmail.com>
To: Dave Taht <dave.taht@gmail.com>
Cc: Rasesh Mody <rmody@brocade.com>,
davem@davemloft.net, netdev@vger.kernel.org,
adapter_linux_open_src_team@brocade.com,
Gurunatha Karaje <gkaraje@brocade.com>
Subject: Re: [net-next 10/12] bna: TX Queue Depth Fix
Date: Wed, 31 Aug 2011 06:46:00 +0200 [thread overview]
Message-ID: <1314765960.11043.3.camel@edumazet-laptop> (raw)
In-Reply-To: <CAA93jw7OrqruzEu4EzEubqFdKpLrkPN9ksh5SSqU5pVcSCjgcw@mail.gmail.com>
Le mardi 30 août 2011 à 21:34 -0700, Dave Taht a écrit :
> On Tue, Aug 30, 2011 at 9:24 PM, Eric Dumazet <eric.dumazet@gmail.com> wrote:
> > BNAD_MAX_Q_DEPTH is now defined but not used.
> >
> > BTW, 32768 slots in a RX queue is insane.
>
> As that is many lunar distances worth of buffering... Are they
> expecting transmissions from mars?
>
At 10GB rate, this can be filled in ~2msec with small frames.
Apparently some people business depend on not losing frames.
But they should be warned of extra memory needs, and latency increases
(because of a larger working set)
next prev parent reply other threads:[~2011-08-31 4:46 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-31 1:27 [net-next 00/12] bna: Update bna driver version to 3.0.2.1 Rasesh Mody
2011-08-31 1:27 ` [net-next 01/12] bna: Naming Change and Minor Macro Fix Rasesh Mody
2011-08-31 1:27 ` [net-next 02/12] bna: PCI Probe Fix Rasesh Mody
2011-08-31 1:27 ` [net-next 03/12] bna: Interrupt Polling and NAPI Init Changes Rasesh Mody
2011-08-31 1:27 ` [net-next 04/12] bna: TX Path and RX Path Changes Rasesh Mody
2011-08-31 1:27 ` [net-next 05/12] bna: Formatting and Code Cleanup Rasesh Mody
2011-08-31 1:27 ` [net-next 06/12] bna: Initialization and Locking Fix Rasesh Mody
2011-08-31 1:27 ` [net-next 07/12] bna: Ethtool Enhancements and Fix Rasesh Mody
2011-08-31 1:27 ` [net-next 08/12] bna: Async Mode Tx Rx Init Fix Rasesh Mody
2011-08-31 1:27 ` [net-next 09/12] bna: MBOX IRQ Flag Check after Locking Rasesh Mody
2011-08-31 1:27 ` [net-next 10/12] bna: TX Queue Depth Fix Rasesh Mody
2011-08-31 4:24 ` Eric Dumazet
2011-08-31 4:34 ` Dave Taht
2011-08-31 4:46 ` Eric Dumazet [this message]
2011-08-31 1:27 ` [net-next 11/12] bna: SKB PCI UNMAP Fix Rasesh Mody
2011-08-31 1:27 ` [net-next 12/12] bna: Driver Version changed to 3.0.2.1 Rasesh Mody
2011-09-07 19:24 ` [net-next 00/12] bna: Update bna driver version " Jing Huang
2011-09-07 19:47 ` David Miller
2011-09-15 19:41 ` David Miller
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