git://bbs.cooldavid.org / net-next-2.6.git / blame
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|---|---|---|
| 80ff0fd3 DD |
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 | *********************************************************************/ | |
| 3368c784 | 27 | #include "cvmx-fau.h" |
| 80ff0fd3 | 28 | |
| 80ff0fd3 | 29 | void cvm_oct_poll_controller(struct net_device *dev); |
| 80ff0fd3 DD |
30 | void cvm_oct_rx_initialize(void); |
| 31 | void cvm_oct_rx_shutdown(void); | |
| 3368c784 DD |
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 | } |