From: Oliver Neukum <oneukum@suse.de>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Sarah Sharp <sarah.a.sharp@linux.intel.com>,
Ming Lei <ming.lei@canonical.com>,
"David S. Miller" <davem@davemloft.net>,
Freddy Xin <freddy@asix.com.tw>,
Eric Dumazet <eric.dumazet@gmail.com>,
Ben Hutchings <bhutchings@solarflare.com>,
Grant Grundler <grundler@google.com>,
netdev@vger.kernel.org, linux-usb@vger.kernel.org
Subject: Re: [PATCH 2/4] USB: XHCI: mark no_sg_limit
Date: Thu, 01 Aug 2013 10:15:51 +0200 [thread overview]
Message-ID: <1375344951.1518.0.camel@linux-fkkt.site> (raw)
In-Reply-To: <20130801073049.GB5026@kroah.com>
On Thu, 2013-08-01 at 15:30 +0800, Greg Kroah-Hartman wrote:
> On Wed, Jul 31, 2013 at 09:40:26AM -0700, Sarah Sharp wrote:
> > On Wed, Jul 31, 2013 at 06:51:47PM +0800, Ming Lei wrote:
> > > This patch marks all xHCI controllers as no_sg_limit since
> > > xHCI supports building packet from discontinuous buffers.
> > >
> > > Cc: Sarah Sharp <sarah.a.sharp@linux.intel.com>
> > > Signed-off-by: Ming Lei <ming.lei@canonical.com>
> >
> > Acked-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
>
> Is it a requirement that all xhci controllers support sg? I know we are
> starting to see other controllers (the platform code?) so would they
> need to support this as well?
The way XHCI describes transfers allows them to be arbitrary.
Regards
Oliver
next prev parent reply other threads:[~2013-08-01 8:15 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-31 10:51 [PATCH 0/4] USB & USBNET: loose DMA SG check and support usbnet DMA SG Ming Lei
2013-07-31 10:51 ` [PATCH 1/4] USB: introduce no_sg_limit field into usb_bus Ming Lei
[not found] ` <1375267909-30373-1-git-send-email-ming.lei-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
2013-07-31 10:51 ` [PATCH 2/4] USB: XHCI: mark no_sg_limit Ming Lei
2013-07-31 16:40 ` Sarah Sharp
2013-08-01 7:30 ` Greg Kroah-Hartman
2013-08-01 8:15 ` Oliver Neukum [this message]
2013-08-01 20:47 ` Sarah Sharp
2013-07-31 15:25 ` [PATCH 0/4] USB & USBNET: loose DMA SG check and support usbnet DMA SG Eric Dumazet
2013-07-31 10:51 ` [PATCH 3/4] USBNET: support " Ming Lei
2013-07-31 10:51 ` [PATCH 4/4] USBNET: ax88179_178a: enable tso if host supports sg dma Ming Lei
2013-07-31 12:47 ` Greg Kroah-Hartman
2013-07-31 13:50 ` Ming Lei
2013-07-31 14:02 ` Oliver Neukum
[not found] ` <1375279366.14846.1.camel-B2T3B9s34ElbnMAlSieJcQ@public.gmane.org>
2013-07-31 15:15 ` Eric Dumazet
2013-07-31 15:25 ` Ming Lei
2013-08-01 2:04 ` Ming Lei
[not found] ` <1375267909-30373-5-git-send-email-ming.lei-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
2013-08-01 3:51 ` Eric Dumazet
2013-08-01 4:41 ` Ming Lei
2013-08-01 5:04 ` Eric Dumazet
2013-08-01 8:10 ` Ming Lei
[not found] ` <CACVXFVMt-TgRVU+iA3NVuUzJSeXUPGvV89OnDdHaLEB1Ua6aAw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-08-01 13:21 ` Eric Dumazet
2013-08-01 13:49 ` [PATCH net-next] ax88179_178a: avoid copy of tx tcp packets Eric Dumazet
2013-08-01 13:52 ` Eric Dumazet
2013-08-04 4:56 ` David Miller
2013-08-01 15:30 ` [PATCH 4/4] USBNET: ax88179_178a: enable tso if host supports sg dma Grant Grundler
2013-08-01 15:36 ` Eric Dumazet
2013-08-01 16:12 ` Grant Grundler
2013-07-31 11:12 ` [PATCH 0/4] USB & USBNET: loose DMA SG check and support usbnet DMA SG Oliver Neukum
2013-07-31 11:55 ` Ming Lei
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