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Diffstat (limited to 'drivers/staging/octeon/cvmx-helper.h')
| -rw-r--r-- | drivers/staging/octeon/cvmx-helper.h | 227 |
1 files changed, 227 insertions, 0 deletions
diff --git a/drivers/staging/octeon/cvmx-helper.h b/drivers/staging/octeon/cvmx-helper.h new file mode 100644 index 00000000000..51916f3cc40 --- /dev/null +++ b/drivers/staging/octeon/cvmx-helper.h @@ -0,0 +1,227 @@ +/***********************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 "cvmx-config.h" +#include "cvmx-fpa.h" +#include "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 "cvmx-helper-fpa.h" + +#include <asm/octeon/cvmx-helper-errata.h> +#include "cvmx-helper-loop.h" +#include "cvmx-helper-npi.h" +#include "cvmx-helper-rgmii.h" +#include "cvmx-helper-sgmii.h" +#include "cvmx-helper-spi.h" +#include "cvmx-helper-util.h" +#include "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); + +/** + * 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__ */ |