| /***********************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); |
| |
| /** |
| * 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(). |
| * |
| * @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__ */ |
