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