From: 'Mika Westerberg' <mika.westerberg@linux.intel.com>
To: David Laight <David.Laight@ACULAB.COM>
Cc: David Miller <davem@davemloft.net>,
"michael.jamet@intel.com" <michael.jamet@intel.com>,
"yehezkel.bernat@intel.com" <yehezkel.bernat@intel.com>,
"netdev@vger.kernel.org" <netdev@vger.kernel.org>
Subject: Re: [PATCH net-next] net: thunderbolt: Clear finished Tx frame bus address in tbnet_tx_callback()
Date: Mon, 20 Nov 2017 17:05:16 +0200 [thread overview]
Message-ID: <20171120150516.GF22431@lahna.fi.intel.com> (raw)
In-Reply-To: <ac633155508e401bab2111ca5b0f8ba1@AcuMS.aculab.com>
On Mon, Nov 20, 2017 at 02:46:53PM +0000, David Laight wrote:
> > There does not seem to be a way to mark DMA address invalid in a driver
> > so we probably need to add a flag to struct tbnet_frame instead.
>
> Can you use the length?
Unfortunately no because size is 12-bit field in struct ring_frame and 0
means 4096 bytes.
prev parent reply other threads:[~2017-11-20 15:05 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-09 10:46 [PATCH net-next] net: thunderbolt: Clear finished Tx frame bus address in tbnet_tx_callback() Mika Westerberg
2017-11-11 10:21 ` David Miller
2017-11-13 10:21 ` Mika Westerberg
2017-11-20 14:46 ` David Laight
2017-11-20 15:05 ` 'Mika Westerberg' [this message]
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