diff options
Diffstat (limited to 'sys/dev/ixgbe/ixv.h')
| -rw-r--r-- | sys/dev/ixgbe/ixv.h | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/sys/dev/ixgbe/ixv.h b/sys/dev/ixgbe/ixv.h index 32a682e..096819c3 100644 --- a/sys/dev/ixgbe/ixv.h +++ b/sys/dev/ixgbe/ixv.h @@ -1,6 +1,6 @@ /****************************************************************************** - Copyright (c) 2001-2010, Intel Corporation + Copyright (c) 2001-2012, Intel Corporation All rights reserved. Redistribution and use in source and binary forms, with or without @@ -415,4 +415,20 @@ drbr_needs_enqueue(struct ifnet *ifp, struct buf_ring *br) return (!buf_ring_empty(br)); } #endif + +/* +** Find the number of unrefreshed RX descriptors +*/ +static inline u16 +ixv_rx_unrefreshed(struct rx_ring *rxr) +{ + struct adapter *adapter = rxr->adapter; + + if (rxr->next_to_check > rxr->next_to_refresh) + return (rxr->next_to_check - rxr->next_to_refresh - 1); + else + return ((adapter->num_rx_desc + rxr->next_to_check) - + rxr->next_to_refresh - 1); +} + #endif /* _IXV_H_ */ |
