diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-05-27 10:42:53 +0900 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-05-27 10:42:53 +0900 |
| commit | 4993632218e2202d4f110c8e83ae819ca26e6845 (patch) | |
| tree | 0872195b8c09b03d54adaaaf4304d1285091b031 /drivers/net/wireless/b43/dma.c | |
| parent | 1c4e2d70afb132058bfe979f6854c1d0a732b556 (diff) | |
| parent | e4aa937ec75df0eea0bee03bffa3303ad36c986b (diff) | |
Merge 3.10-rc3 into driver-core-next
We want the changes here.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/net/wireless/b43/dma.c')
| -rw-r--r-- | drivers/net/wireless/b43/dma.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/net/wireless/b43/dma.c b/drivers/net/wireless/b43/dma.c index 523355b87659..f7c70b3a6ea9 100644 --- a/drivers/net/wireless/b43/dma.c +++ b/drivers/net/wireless/b43/dma.c @@ -1728,6 +1728,25 @@ drop_recycle_buffer: sync_descbuffer_for_device(ring, dmaaddr, ring->rx_buffersize); } +void b43_dma_handle_rx_overflow(struct b43_dmaring *ring) +{ + int current_slot, previous_slot; + + B43_WARN_ON(ring->tx); + + /* Device has filled all buffers, drop all packets and let TCP + * decrease speed. + * Decrement RX index by one will let the device to see all slots + * as free again + */ + /* + *TODO: How to increase rx_drop in mac80211? + */ + current_slot = ring->ops->get_current_rxslot(ring); + previous_slot = prev_slot(ring, current_slot); + ring->ops->set_current_rxslot(ring, previous_slot); +} + void b43_dma_rx(struct b43_dmaring *ring) { const struct b43_dma_ops *ops = ring->ops; |