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