diff options
Diffstat (limited to 'drivers/staging/octeon/ethernet-rx.h')
| -rw-r--r-- | drivers/staging/octeon/ethernet-rx.h | 25 |
1 files changed, 22 insertions, 3 deletions
diff --git a/drivers/staging/octeon/ethernet-rx.h b/drivers/staging/octeon/ethernet-rx.h index a9b72b87a7a6..a0743b85d54e 100644 --- a/drivers/staging/octeon/ethernet-rx.h +++ b/drivers/staging/octeon/ethernet-rx.h @@ -24,10 +24,29 @@ * This file may also be available under a different license from Cavium. * Contact Cavium Networks for more information *********************************************************************/ +#include "cvmx-fau.h" -irqreturn_t cvm_oct_do_interrupt(int cpl, void *dev_id); void cvm_oct_poll_controller(struct net_device *dev); -void cvm_oct_tasklet_rx(unsigned long unused); - void cvm_oct_rx_initialize(void); void cvm_oct_rx_shutdown(void); + +static inline void cvm_oct_rx_refill_pool(int fill_threshold) +{ + int number_to_free; + int num_freed; + /* Refill the packet buffer pool */ + number_to_free = + cvmx_fau_fetch_and_add32(FAU_NUM_PACKET_BUFFERS_TO_FREE, 0); + + if (number_to_free > fill_threshold) { + cvmx_fau_atomic_add32(FAU_NUM_PACKET_BUFFERS_TO_FREE, + -number_to_free); + num_freed = cvm_oct_mem_fill_fpa(CVMX_FPA_PACKET_POOL, + CVMX_FPA_PACKET_POOL_SIZE, + number_to_free); + if (num_freed != number_to_free) { + cvmx_fau_atomic_add32(FAU_NUM_PACKET_BUFFERS_TO_FREE, + number_to_free - num_freed); + } + } +} |