diff options
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 523355b8765..f7c70b3a6ea 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; |