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/***********************license start***************
* Copyright (c) 2003-2010 Cavium Networks (support@cavium.com). All rights
* reserved.
*
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of Cavium Networks nor the names of
* its contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
* This Software, including technical data, may be subject to U.S. export control
* laws, including the U.S. Export Administration Act and its associated
* regulations, and may be subject to export or import regulations in other
* countries.
* TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
* AND WITH ALL FAULTS AND CAVIUM NETWORKS MAKES NO PROMISES, REPRESENTATIONS OR
* WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO
* THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION OR
* DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM
* SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE,
* MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF
* VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR
* CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT OF USE OR
* PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
***********************license end**************************************/
/**
* @file
*
* Support functions for managing the MII management port
*
* <hr>$Revision: 49448 $<hr>
*/
#ifndef __CVMX_MGMT_PORT_H__
#define __CVMX_MGMT_PORT_H__
#include "cvmx-helper.h"
#include "cvmx-helper-board.h"
#ifdef __cplusplus
extern "C" {
#endif
#define CVMX_MGMT_PORT_NUM_PORTS 2 /* Right now we only have one mgmt port */
#define CVMX_MGMT_PORT_NUM_TX_BUFFERS 16 /* Number of TX ring buffer entries and buffers */
#define CVMX_MGMT_PORT_NUM_RX_BUFFERS 128 /* Number of RX ring buffer entries and buffers */
#define CVMX_MGMT_PORT_TX_BUFFER_SIZE 12288 /* Size of each TX/RX buffer */
#define CVMX_MGMT_PORT_RX_BUFFER_SIZE 1536 /* Size of each TX/RX buffer */
typedef enum
{
CVMX_MGMT_PORT_SUCCESS = 0,
CVMX_MGMT_PORT_NO_MEMORY = -1,
CVMX_MGMT_PORT_INVALID_PARAM = -2,
CVMX_MGMT_PORT_INIT_ERROR = -3,
} cvmx_mgmt_port_result_t;
/* Enumeration of Net Device interface flags. */
typedef enum
{
CVMX_IFF_PROMISC = 0x100, /* receive all packets */
CVMX_IFF_ALLMULTI = 0x200, /* receive all multicast packets */
} cvmx_mgmt_port_netdevice_flags_t;
/**
* Called to initialize a management port for use. Multiple calls
* to this function accross applications is safe.
*
* @param port Port to initialize
*
* @return CVMX_MGMT_PORT_SUCCESS or an error code
*/
extern cvmx_mgmt_port_result_t cvmx_mgmt_port_initialize(int port);
/**
* Shutdown a management port. This currently disables packet IO
* but leaves all hardware and buffers. Another application can then
* call initialize() without redoing the hardware setup.
*
* @param port Management port
*
* @return CVMX_MGMT_PORT_SUCCESS or an error code
*/
extern cvmx_mgmt_port_result_t cvmx_mgmt_port_shutdown(int port);
/**
* Enable packet IO on a management port
*
* @param port Management port
*
* @return CVMX_MGMT_PORT_SUCCESS or an error code
*/
extern cvmx_mgmt_port_result_t cvmx_mgmt_port_enable(int port);
/**
* Disable packet IO on a management port
*
* @param port Management port
*
* @return CVMX_MGMT_PORT_SUCCESS or an error code
*/
extern cvmx_mgmt_port_result_t cvmx_mgmt_port_disable(int port);
/**
* Send a packet out the management port. The packet is copied so
* the input buffer isn't used after this call.
*
* @param port Management port
* @param packet_len Length of the packet to send. It does not include the final CRC
* @param buffer Packet data
*
* @return CVMX_MGMT_PORT_SUCCESS or an error code
*/
extern cvmx_mgmt_port_result_t cvmx_mgmt_port_send(int port, int packet_len, void *buffer);
/**
* Receive a packet from the management port.
*
* @param port Management port
* @param buffer_len Size of the buffer to receive the packet into
* @param buffer Buffer to receive the packet into
*
* @return The size of the packet, or a negative erorr code on failure. Zero
* means that no packets were available.
*/
extern int cvmx_mgmt_port_receive(int port, int buffer_len, void *buffer);
/**
* Set the MAC address for a management port
*
* @param port Management port
* @param mac New MAC address. The lower 6 bytes are used.
*
* @return CVMX_MGMT_PORT_SUCCESS or an error code
*/
extern cvmx_mgmt_port_result_t cvmx_mgmt_port_set_mac(int port, uint64_t mac);
/**
* Get the MAC address for a management port
*
* @param port Management port
*
* @return MAC address
*/
extern uint64_t cvmx_mgmt_port_get_mac(int port);
#define CVMX_MGMT_PORT_GET_MAC_ERROR ((unsigned long long)-2LL)
/**
* Set the multicast list.
*
* @param port Management port
* @param flags Interface flags
*
* @return
*/
extern void cvmx_mgmt_port_set_multicast_list(int port, int flags);
/**
* Set the maximum packet allowed in. Size is specified
* including L2 but without FCS. A normal MTU would corespond
* to 1514 assuming the standard 14 byte L2 header.
*
* @param port Management port
* @param size_without_fcs
* Size in bytes without FCS
*/
extern void cvmx_mgmt_port_set_max_packet_size(int port, int size_without_fcs);
/**
* Return the link state of an RGMII/MII 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_mgmt_port_link_set().
*
* @param port The RGMII/MII interface port to query
*
* @return Link state
*/
extern cvmx_helper_link_info_t cvmx_mgmt_port_link_get(int port);
/**
* Configure RGMII/MII port for the specified link state. This
* function does not influence auto negotiation at the PHY level.
*
* @param port RGMII/MII interface port
* @param link_info The new link state
*
* @return Zero on success, negative on failure
*/
extern int cvmx_mgmt_port_link_set(int port, cvmx_helper_link_info_t link_info);
#ifdef __cplusplus
}
#endif
#endif /* __CVMX_MGMT_PORT_H__ */
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