71 lines
2.2 KiB
C
71 lines
2.2 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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/**
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* cvm_oct_get_buffer_ptr - convert packet data address to pointer
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* @packet_ptr: Packet data hardware address
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*
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* Returns Packet buffer pointer
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*/
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static inline void *cvm_oct_get_buffer_ptr(union cvmx_buf_ptr packet_ptr)
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{
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return cvmx_phys_to_ptr(((packet_ptr.s.addr >> 7) - packet_ptr.s.back)
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<< 7);
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}
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/**
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* INTERFACE - convert IPD port to logical interface
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* @ipd_port: Port to check
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*
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* Returns Logical interface
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*/
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static inline int INTERFACE(int ipd_port)
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{
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if (ipd_port < 32) /* Interface 0 or 1 for RGMII,GMII,SPI, etc */
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return ipd_port >> 4;
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else if (ipd_port < 36) /* Interface 2 for NPI */
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return 2;
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else if (ipd_port < 40) /* Interface 3 for loopback */
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return 3;
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else if (ipd_port == 40) /* Non existent interface for POW0 */
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return 4;
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panic("Illegal ipd_port %d passed to INTERFACE\n", ipd_port);
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}
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/**
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* INDEX - convert IPD/PKO port number to the port's interface index
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* @ipd_port: Port to check
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*
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* Returns Index into interface port list
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*/
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static inline int INDEX(int ipd_port)
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{
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if (ipd_port < 32)
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return ipd_port & 15;
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return ipd_port & 3;
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}
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