netdev.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Jeff Garzik <jeff@garzik.org>
To: Francois Romieu <romieu@fr.zoreil.com>
Cc: netdev@vger.kernel.org, "Séguier Régis" <rseguier@e-teleport.net>,
	akpm@linux-foundation.org
Subject: Re: [PATCH 1/6] via-velocity: remove the bounce buffers
Date: Fri, 11 Jul 2008 01:14:04 -0400	[thread overview]
Message-ID: <4876EC1C.4080705@garzik.org> (raw)
In-Reply-To: <20080710220344.GB29764@electric-eye.fr.zoreil.com>

Francois Romieu wrote:
> Executive summary: the bounce buffers are in my way
> 
> - they use something like a 64 * 1500 bytes area of PCI
>   consistent area
> - they are not resized when the MTU changes
> - they are used
>   - to hand-pad undersized packets. skb_pad anyone ?
>   - to linearize fragmented skbs whose fragment count
>     goes beyond the 7 fragments hardware limit in order
>     to claim scatter-gather support
> 
> Actually the SG code is commented out and I wonder if it
> could not be implemented (ab-)using the large send feature
> of the chipset since the latter should support some
> multi-descriptor packet transmitting.
> 
> Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
> Fixed-by: Séguier Régis <rseguier@e-teleport.net>
> ---
>  drivers/net/via-velocity.c |   72 +++++++++++---------------------------------
>  drivers/net/via-velocity.h |    5 ---
>  2 files changed, 18 insertions(+), 59 deletions(-)
> 

ACK patches 1-6

applied 1-4, patch #5 failed to apply



      reply	other threads:[~2008-07-11  5:14 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-07-10 22:03 [PATCH 1/6] via-velocity: remove the bounce buffers Francois Romieu
2008-07-11  5:14 ` Jeff Garzik [this message]

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=4876EC1C.4080705@garzik.org \
    --to=jeff@garzik.org \
    --cc=akpm@linux-foundation.org \
    --cc=netdev@vger.kernel.org \
    --cc=romieu@fr.zoreil.com \
    --cc=rseguier@e-teleport.net \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).