diff options
Diffstat (limited to 'drivers/staging/octeon/ethernet-rx.h')
| -rw-r--r-- | drivers/staging/octeon/ethernet-rx.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/drivers/staging/octeon/ethernet-rx.h b/drivers/staging/octeon/ethernet-rx.h new file mode 100644 index 000000000..9240c85ce --- /dev/null +++ b/drivers/staging/octeon/ethernet-rx.h @@ -0,0 +1,52 @@ +/********************************************************************* + * Author: Cavium Networks + * + * Contact: support@caviumnetworks.com + * This file is part of the OCTEON SDK + * + * Copyright (c) 2003-2007 Cavium Networks + * + * This file is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License, Version 2, as + * published by the Free Software Foundation. + * + * This file is distributed in the hope that it will be useful, but + * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or + * NONINFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this file; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * or visit http://www.gnu.org/licenses/. + * + * This file may also be available under a different license from Cavium. + * Contact Cavium Networks for more information +*********************************************************************/ +#include <asm/octeon/cvmx-fau.h> + +void cvm_oct_poll_controller(struct net_device *dev); +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); + } + } +} |