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/***********************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;
typedef union {
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;
} cvmx_helper_link_info_t;
#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>
/**
* cvmx_override_pko_queue_priority(int ipd_port, uint64_t
* priorities[16]) is a function pointer. It is meant to allow
* customization of the PKO queue priorities based on the port
* number. Users should set this pointer to a function before
* calling any cvmx-helper operations.
*/
extern void (*cvmx_override_pko_queue_priority) (int pko_port,
uint64_t priorities[16]);
/**
* cvmx_override_ipd_port_setup(int ipd_port) is a function
* pointer. It is meant to allow customization of the IPD port
* setup before packet input/output comes online. It is called
* after cvmx-helper does the default IPD configuration, but
* before IPD is enabled. Users should set this pointer to a
* function before calling any cvmx-helper operations.
*/
extern void (*cvmx_override_ipd_port_setup) (int ipd_port);
/**
* 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);
/**
* Does core local initialization for packet io
*
* Returns Zero on success, non-zero on failure
*/
extern int cvmx_helper_initialize_packet_io_local(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);
/**
* Auto configure an IPD/PKO port link state and speed. This
* function basically does the equivalent of:
* cvmx_helper_link_set(ipd_port, cvmx_helper_link_get(ipd_port));
*
* @ipd_port: IPD/PKO port to auto configure
*
* Returns Link state after configure
*/
extern cvmx_helper_link_info_t cvmx_helper_link_autoconf(int ipd_port);
/**
* 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 cvmx_helper_link_info_t 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(). It is normally best to use
* cvmx_helper_link_autoconf() instead.
*
* @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,
cvmx_helper_link_info_t 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);
/**
* Configure a port for internal and/or external loopback. Internal loopback
* causes packets sent by the port to be received by Octeon. External loopback
* causes packets received from the wire to sent out again.
*
* @ipd_port: IPD/PKO port to loopback.
* @enable_internal:
* Non zero if you want internal loopback
* @enable_external:
* Non zero if you want external loopback
*
* Returns Zero on success, negative on failure.
*/
extern int cvmx_helper_configure_loopback(int ipd_port, int enable_internal,
int enable_external);
#endif /* __CVMX_HELPER_H__ */
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