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178 lines
5.7 KiB
178 lines
5.7 KiB
/***********************license start*************** |
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* Author: Cavium Networks |
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* |
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* Contact: [email protected] |
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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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* Does core local initialization for packet io |
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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_local(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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