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/**********************************************************************
* Author: Cavium Networks
*
* Contact: support@caviumnetworks.com
* This file is part of the OCTEON SDK
*
* Copyright (c) 2003-2007 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
**********************************************************************/
/*
* External interface for the Cavium Octeon ethernet driver.
*/
#ifndef OCTEON_ETHERNET_H
#define OCTEON_ETHERNET_H
/**
* This is the definition of the Ethernet driver's private
* driver state stored in netdev_priv(dev).
*/
struct octeon_ethernet {
/* PKO hardware output port */
int port;
/* PKO hardware queue for the port */
int queue;
/* Hardware fetch and add to count outstanding tx buffers */
int fau;
/*
* Type of port. This is one of the enums in
* cvmx_helper_interface_mode_t
*/
int imode;
/* List of outstanding tx buffers per queue */
struct sk_buff_head tx_free_list[16];
/* Device statistics */
struct net_device_stats stats
; /* Generic MII info structure */
struct mii_if_info mii_info;
/* Last negotiated link state */
uint64_t link_info;
/* Called periodically to check link status */
void (*poll) (struct net_device *dev);
};
/**
* Free a work queue entry received in a intercept callback.
*
* @work_queue_entry:
* Work queue entry to free
* Returns Zero on success, Negative on failure.
*/
int cvm_oct_free_work(void *work_queue_entry);
/**
* Transmit a work queue entry out of the ethernet port. Both
* the work queue entry and the packet data can optionally be
* freed. The work will be freed on error as well.
*
* @dev: Device to transmit out.
* @work_queue_entry:
* Work queue entry to send
* @do_free: True if the work queue entry and packet data should be
* freed. If false, neither will be freed.
* @qos: Index into the queues for this port to transmit on. This
* is used to implement QoS if their are multiple queues per
* port. This parameter must be between 0 and the number of
* queues per port minus 1. Values outside of this range will
* be change to zero.
*
* Returns Zero on success, negative on failure.
*/
int cvm_oct_transmit_qos(struct net_device *dev, void *work_queue_entry,
int do_free, int qos);
/**
* Transmit a work queue entry out of the ethernet port. Both
* the work queue entry and the packet data can optionally be
* freed. The work will be freed on error as well. This simply
* wraps cvmx_oct_transmit_qos() for backwards compatability.
*
* @dev: Device to transmit out.
* @work_queue_entry:
* Work queue entry to send
* @do_free: True if the work queue entry and packet data should be
* freed. If false, neither will be freed.
*
* Returns Zero on success, negative on failure.
*/
static inline int cvm_oct_transmit(struct net_device *dev,
void *work_queue_entry, int do_free)
{
return cvm_oct_transmit_qos(dev, work_queue_entry, do_free, 0);
}
extern int cvm_oct_rgmii_init(struct net_device *dev);
extern void cvm_oct_rgmii_uninit(struct net_device *dev);
extern int cvm_oct_sgmii_init(struct net_device *dev);
extern void cvm_oct_sgmii_uninit(struct net_device *dev);
extern int cvm_oct_spi_init(struct net_device *dev);
extern void cvm_oct_spi_uninit(struct net_device *dev);
extern int cvm_oct_xaui_init(struct net_device *dev);
extern void cvm_oct_xaui_uninit(struct net_device *dev);
extern int always_use_pow;
extern int pow_send_group;
extern int pow_receive_group;
extern char pow_send_list[];
extern struct net_device *cvm_oct_device[];
#endif
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