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cvmx-helper.h
/***********************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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