af866496c7
Signed-off-by: David Daney <david.daney@cavium.com> Cc: linux-mips@linux-mips.org Cc: netdev@vger.kernel.org Cc: devel@driverdev.osuosl.org Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Patchwork: https://patchwork.linux-mips.org/patch/2942/ Patchwork: https://patchwork.linux-mips.org/patch/3012/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
53 lines
1.9 KiB
C
53 lines
1.9 KiB
C
/*********************************************************************
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* Author: Cavium Networks
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*
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* Contact: support@caviumnetworks.com
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* This file is part of the OCTEON SDK
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*
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* Copyright (c) 2003-2007 Cavium Networks
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*
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* This file is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License, Version 2, as
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* published by the Free Software Foundation.
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*
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* This file is distributed in the hope that it will be useful, but
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* AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
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* NONINFRINGEMENT. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this file; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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* or visit http://www.gnu.org/licenses/.
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*
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* This file may also be available under a different license from Cavium.
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* Contact Cavium Networks for more information
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*********************************************************************/
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#include <asm/octeon/cvmx-fau.h>
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void cvm_oct_poll_controller(struct net_device *dev);
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void cvm_oct_rx_initialize(void);
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void cvm_oct_rx_shutdown(void);
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static inline void cvm_oct_rx_refill_pool(int fill_threshold)
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{
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int number_to_free;
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int num_freed;
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/* Refill the packet buffer pool */
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number_to_free =
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cvmx_fau_fetch_and_add32(FAU_NUM_PACKET_BUFFERS_TO_FREE, 0);
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if (number_to_free > fill_threshold) {
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cvmx_fau_atomic_add32(FAU_NUM_PACKET_BUFFERS_TO_FREE,
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-number_to_free);
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num_freed = cvm_oct_mem_fill_fpa(CVMX_FPA_PACKET_POOL,
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CVMX_FPA_PACKET_POOL_SIZE,
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number_to_free);
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if (num_freed != number_to_free) {
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cvmx_fau_atomic_add32(FAU_NUM_PACKET_BUFFERS_TO_FREE,
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number_to_free - num_freed);
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}
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}
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}
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