| David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 1 | /********************************************************************* |
| 2 | * Author: Cavium Networks |
| 3 | * |
| 4 | * Contact: support@caviumnetworks.com |
| 5 | * This file is part of the OCTEON SDK |
| 6 | * |
| 7 | * Copyright (c) 2003-2007 Cavium Networks |
| 8 | * |
| 9 | * This file is free software; you can redistribute it and/or modify |
| 10 | * it under the terms of the GNU General Public License, Version 2, as |
| 11 | * published by the Free Software Foundation. |
| 12 | * |
| 13 | * This file is distributed in the hope that it will be useful, but |
| 14 | * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty |
| 15 | * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or |
| 16 | * NONINFRINGEMENT. See the GNU General Public License for more |
| 17 | * details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License |
| 20 | * along with this file; if not, write to the Free Software |
| 21 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 22 | * or visit http://www.gnu.org/licenses/. |
| 23 | * |
| 24 | * This file may also be available under a different license from Cavium. |
| 25 | * Contact Cavium Networks for more information |
| 26 | *********************************************************************/ |
| David Daney | af86649 | 2011-11-22 14:47:00 +0000 | [diff] [blame] | 27 | #include <asm/octeon/cvmx-fau.h> |
| David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 28 | |
| David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 29 | void cvm_oct_poll_controller(struct net_device *dev); |
| David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 30 | void cvm_oct_rx_initialize(void); |
| 31 | void cvm_oct_rx_shutdown(void); |
| David Daney | 3368c78 | 2010-01-07 11:05:04 -0800 | [diff] [blame] | 32 | |
| 33 | static inline void cvm_oct_rx_refill_pool(int fill_threshold) |
| 34 | { |
| 35 | int number_to_free; |
| 36 | int num_freed; |
| 37 | /* Refill the packet buffer pool */ |
| 38 | number_to_free = |
| 39 | cvmx_fau_fetch_and_add32(FAU_NUM_PACKET_BUFFERS_TO_FREE, 0); |
| 40 | |
| 41 | if (number_to_free > fill_threshold) { |
| 42 | cvmx_fau_atomic_add32(FAU_NUM_PACKET_BUFFERS_TO_FREE, |
| 43 | -number_to_free); |
| 44 | num_freed = cvm_oct_mem_fill_fpa(CVMX_FPA_PACKET_POOL, |
| 45 | CVMX_FPA_PACKET_POOL_SIZE, |
| 46 | number_to_free); |
| 47 | if (num_freed != number_to_free) { |
| 48 | cvmx_fau_atomic_add32(FAU_NUM_PACKET_BUFFERS_TO_FREE, |
| 49 | number_to_free - num_freed); |
| 50 | } |
| 51 | } |
| 52 | } |