/***********************license start***************
* Author : Cavium Networks
*
* Contact : support @ caviumnetworks . com
* This file is part of the OCTEON SDK
*
* Copyright ( c ) 2003 - 2008 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
***********************license end**************************************/
/*
*
* Helper functions for common , but complicated tasks .
*
*/
#ifndef __CVMX_HELPER_H__
#define __CVMX_HELPER_H__
#include <asm /octeon/cvmx-config.h>
#include <asm /octeon/cvmx-fpa.h>
#include <asm /octeon/cvmx-wqe.h>
typedef enum {
CVMX_HELPER_INTERFACE_MODE_DISABLED,
CVMX_HELPER_INTERFACE_MODE_RGMII,
CVMX_HELPER_INTERFACE_MODE_GMII,
CVMX_HELPER_INTERFACE_MODE_SPI,
CVMX_HELPER_INTERFACE_MODE_PCIE,
CVMX_HELPER_INTERFACE_MODE_XAUI,
CVMX_HELPER_INTERFACE_MODE_SGMII,
CVMX_HELPER_INTERFACE_MODE_PICMG,
CVMX_HELPER_INTERFACE_MODE_NPI,
CVMX_HELPER_INTERFACE_MODE_LOOP,
} cvmx_helper_interface_mode_t;
union cvmx_helper_link_info {
uint64_t u64;
struct {
uint64_t reserved_20_63:44 ;
uint64_t link_up:1 ; /**< Is the physical link up? */
uint64_t full_duplex:1 ; /**< 1 if the link is full duplex */
uint64_t speed:18 ; /**< Speed of the link in Mbps */
} s;
};
#include <asm /octeon/cvmx-helper-errata.h>
#include <asm /octeon/cvmx-helper-loop.h>
#include <asm /octeon/cvmx-helper-npi.h>
#include <asm /octeon/cvmx-helper-rgmii.h>
#include <asm /octeon/cvmx-helper-sgmii.h>
#include <asm /octeon/cvmx-helper-spi.h>
#include <asm /octeon/cvmx-helper-util.h>
#include <asm /octeon/cvmx-helper-xaui.h>
/**
* This function enables the IPD and also enables the packet interfaces .
* The packet interfaces ( RGMII and SPI ) must be enabled after the
* IPD . This should be called by the user program after any additional
* IPD configuration changes are made if CVMX_HELPER_ENABLE_IPD
* is not set in the executive - config . h file .
*
* Returns 0 on success
* - 1 on failure
*/
extern int cvmx_helper_ipd_and_packet_input_enable(void );
/**
* Initialize the PIP , IPD , and PKO hardware to support
* simple priority based queues for the ethernet ports . Each
* port is configured with a number of priority queues based
* on CVMX_PKO_QUEUES_PER_PORT_ * where each queue is lower
* priority than the previous .
*
* Returns Zero on success , non - zero on failure
*/
extern int cvmx_helper_initialize_packet_io_global(void );
/**
* Returns the number of ports on the given interface .
* The interface must be initialized before the port count
* can be returned .
*
* @ interface : Which interface to return port count for .
*
* Returns Port count for interface
* - 1 for uninitialized interface
*/
extern int cvmx_helper_ports_on_interface(int interface);
/**
* Return the number of interfaces the chip has . Each interface
* may have multiple ports . Most chips support two interfaces ,
* but the CNX0XX and CNX1XX are exceptions . These only support
* one interface .
*
* Returns Number of interfaces on chip
*/
extern int cvmx_helper_get_number_of_interfaces(void );
/**
* Get the operating mode of an interface . Depending on the Octeon
* chip and configuration , this function returns an enumeration
* of the type of packet I / O supported by an interface .
*
* @ interface : Interface to probe
*
* Returns Mode of the interface . Unknown or unsupported interfaces return
* DISABLED .
*/
extern cvmx_helper_interface_mode_t cvmx_helper_interface_get_mode(int
interface);
/**
* Return the link state of an IPD / PKO port as returned by
* auto negotiation . The result of this function may not match
* Octeon ' s link config if auto negotiation has changed since
* the last call to cvmx_helper_link_set ( ) .
*
* @ ipd_port : IPD / PKO port to query
*
* Returns Link state
*/
extern union cvmx_helper_link_info cvmx_helper_link_get(int ipd_port);
/**
* Configure an IPD / PKO port for the specified link state . This
* function does not influence auto negotiation at the PHY level .
* The passed link state must always match the link state returned
* by cvmx_helper_link_get ( ) .
*
* @ ipd_port : IPD / PKO port to configure
* @ link_info : The new link state
*
* Returns Zero on success , negative on failure
*/
extern int cvmx_helper_link_set(int ipd_port,
union cvmx_helper_link_info link_info);
/**
* This function probes an interface to determine the actual
* number of hardware ports connected to it . It doesn ' t setup the
* ports or enable them . The main goal here is to set the global
* interface_port_count [ interface ] correctly . Hardware setup of the
* ports will be performed later .
*
* @ interface : Interface to probe
*
* Returns Zero on success , negative on failure
*/
extern int cvmx_helper_interface_probe(int interface);
extern int cvmx_helper_interface_enumerate(int interface);
#endif /* __CVMX_HELPER_H__ */
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