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/**********************************************************************
* Author: Cavium Networks
*
* Contact: support@caviumnetworks.com
* This file is part of the OCTEON SDK
*
* 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.
*
* This file is distributed in the hope that it will be useful, but
* AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
* NONINFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with this file; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
* or visit http://www.gnu.org/licenses/.
*
* This file may also be available under a different license from Cavium.
* Contact Cavium Networks for more information
*********************************************************************/
#define DEBUGPRINT(format, ...) do { if (printk_ratelimit()) \
printk(format, ##__VA_ARGS__); \
} while (0)
/**
* Given a packet data address, return a pointer to the
* beginning of the packet buffer.
*
* @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);
}
/**
* Given an IPD/PKO port number, return the logical interface it is
* on.
*
* @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 existant interface for POW0 */
return 4;
else
panic("Illegal ipd_port %d passed to INTERFACE\n", ipd_port);
}
/**
* Given an IPD/PKO port number, return the port's index on a
* logical interface.
*
* @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;
else
return ipd_port & 3;
}
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