From: Julia Lawall <julia.lawall@lip6.fr>
To: netdev@vger.kernel.org
Subject: question about ethernet/tundra/tsi108_eth.c
Date: Tue, 20 Aug 2013 12:35:20 +0200 (CEST) [thread overview]
Message-ID: <alpine.DEB.2.02.1308201230150.2269@hadrien> (raw)
The driver ethernet/tundra/tsi108_eth.c seems to be inconsistent about how
it shares buffers with the device. In the open function (tsi108_open), it
uses virt_to_phys. In the refill function (tsi108_refill_rx), it uses
dma_map_single. However, there doesn't seem to be any dma_unmap_single
anywhere.
I see that this is not a very actively maintained driver, but I am
interested in the general question of how this works.
thanks,
julia
reply other threads:[~2013-08-20 10:35 UTC|newest]
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