diff options
| author | John W. Linville <linville@tuxdriver.com> | 2013-05-10 10:29:24 -0400 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2013-05-10 10:29:24 -0400 |
| commit | 4f81d715b90b7ebe049dd906511c47956086ad44 (patch) | |
| tree | 80810bd165359e940a30ac4852f95a628bbb1610 /drivers/net/wireless/b43/dma.c | |
| parent | 70eba4226d9718946941c7be0c8cb66d431e7686 (diff) | |
| parent | ccd384b10420ac81ba3fb9b0a7d18272c7173552 (diff) | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem
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; |