On Mon, Nov 20, 2017 at 02:46:53PM +, 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_f
From: Mika Westerberg
> Sent: 13 November 2017 10:22
> To: David Miller
> Cc: michael.ja...@intel.com; yehezkel.ber...@intel.com; netdev@vger.kernel.org
> Subject: Re: [PATCH net-next] net: thunderbolt: Clear finished Tx frame bus
> address in
> tbnet_tx_callback()
>
> On
On Sat, Nov 11, 2017 at 07:21:24PM +0900, David Miller wrote:
> From: Mika Westerberg
> Date: Thu, 9 Nov 2017 13:46:28 +0300
>
> > When Thunderbolt network interface is disabled or when the cable is
> > unplugged the driver releases all allocated buffers by calling
> > tbnet_free_buffers() for e
From: Mika Westerberg
Date: Thu, 9 Nov 2017 13:46:28 +0300
> When Thunderbolt network interface is disabled or when the cable is
> unplugged the driver releases all allocated buffers by calling
> tbnet_free_buffers() for each ring. This function then calls
> dma_unmap_page() for each buffer it f
When Thunderbolt network interface is disabled or when the cable is
unplugged the driver releases all allocated buffers by calling
tbnet_free_buffers() for each ring. This function then calls
dma_unmap_page() for each buffer it finds where bus address is non-zero.
Now, we only clear this bus addres
