[deliverable/linux.git] / drivers / staging / octeon / ethernet-xaui.c

/**********************************************************************
 * 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
**********************************************************************/
#include <linux/kernel.h>
#include <linux/netdevice.h>
#include <linux/ratelimit.h>
#include <net/dst.h>

#include <asm/octeon/octeon.h>

#include "ethernet-defines.h"
#include "octeon-ethernet.h"
#include "ethernet-util.h"

#include "cvmx-helper.h"

#include "cvmx-gmxx-defs.h"

int cvm_oct_xaui_open(struct net_device *dev)
{
	union cvmx_gmxx_prtx_cfg gmx_cfg;
	struct octeon_ethernet *priv = netdev_priv(dev);
	int interface = INTERFACE(priv->port);
	int index = INDEX(priv->port);
	cvmx_helper_link_info_t link_info;

	gmx_cfg.u64 = cvmx_read_csr(CVMX_GMXX_PRTX_CFG(index, interface));
	gmx_cfg.s.en = 1;
	cvmx_write_csr(CVMX_GMXX_PRTX_CFG(index, interface), gmx_cfg.u64);

	if (!octeon_is_simulation()) {
		link_info = cvmx_helper_link_get(priv->port);
		if (!link_info.s.link_up)
			netif_carrier_off(dev);
	}
	return 0;
}

int cvm_oct_xaui_stop(struct net_device *dev)
{
	union cvmx_gmxx_prtx_cfg gmx_cfg;
	struct octeon_ethernet *priv = netdev_priv(dev);
	int interface = INTERFACE(priv->port);
	int index = INDEX(priv->port);

	gmx_cfg.u64 = cvmx_read_csr(CVMX_GMXX_PRTX_CFG(index, interface));
	gmx_cfg.s.en = 0;
	cvmx_write_csr(CVMX_GMXX_PRTX_CFG(index, interface), gmx_cfg.u64);
	return 0;
}

static void cvm_oct_xaui_poll(struct net_device *dev)
{
	struct octeon_ethernet *priv = netdev_priv(dev);
	cvmx_helper_link_info_t link_info;

	link_info = cvmx_helper_link_get(priv->port);
	if (link_info.u64 == priv->link_info)
		return;

	link_info = cvmx_helper_link_autoconf(priv->port);
	priv->link_info = link_info.u64;

	/* Tell Linux */
	if (link_info.s.link_up) {

		if (!netif_carrier_ok(dev))
			netif_carrier_on(dev);
		if (priv->queue != -1)
			printk_ratelimited
				("%s: %u Mbps %s duplex, port %2d, queue %2d\n",
				 dev->name, link_info.s.speed,
				 (link_info.s.full_duplex) ? "Full" : "Half",
				 priv->port, priv->queue);
		else
			printk_ratelimited
				("%s: %u Mbps %s duplex, port %2d, POW\n",
				 dev->name, link_info.s.speed,
				 (link_info.s.full_duplex) ? "Full" : "Half",
				 priv->port);
	} else {
		if (netif_carrier_ok(dev))
			netif_carrier_off(dev);
		printk_ratelimited("%s: Link down\n", dev->name);
	}
}

int cvm_oct_xaui_init(struct net_device *dev)
{
	struct octeon_ethernet *priv = netdev_priv(dev);
	cvm_oct_common_init(dev);
	dev->netdev_ops->ndo_stop(dev);
	if (!octeon_is_simulation() && priv->phydev == NULL)
		priv->poll = cvm_oct_xaui_poll;

	return 0;
}

void cvm_oct_xaui_uninit(struct net_device *dev)
{
	cvm_oct_common_uninit(dev);
}
Commit	Line	Data
80ff0fd3 DD	1	/**********************************************************************
	2	* Author: Cavium Networks
	3	*
	4	* Contact: support@caviumnetworks.com
	5	* This file is part of the OCTEON SDK
	6	*
	7	* Copyright (c) 2003-2007 Cavium Networks
	8	*
	9	* This file is free software; you can redistribute it and/or modify
	10	* it under the terms of the GNU General Public License, Version 2, as
	11	* published by the Free Software Foundation.
	12	*
	13	* This file is distributed in the hope that it will be useful, but
	14	* AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
	15	* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
	16	* NONINFRINGEMENT. See the GNU General Public License for more
	17	* details.
	18	*
	19	* You should have received a copy of the GNU General Public License
	20	* along with this file; if not, write to the Free Software
	21	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
	22	* or visit http://www.gnu.org/licenses/.
	23	*
	24	* This file may also be available under a different license from Cavium.
	25	* Contact Cavium Networks for more information
	26	**********************************************************************/
	27	#include <linux/kernel.h>
	28	#include <linux/netdevice.h>
7a2eaf93	29	#include <linux/ratelimit.h>
80ff0fd3 DD	30	#include <net/dst.h>
	31
	32	#include <asm/octeon/octeon.h>
	33
	34	#include "ethernet-defines.h"
	35	#include "octeon-ethernet.h"
80ff0fd3 DD	36	#include "ethernet-util.h"
	37
	38	#include "cvmx-helper.h"
	39
	40	#include "cvmx-gmxx-defs.h"
	41
f696a108	42	int cvm_oct_xaui_open(struct net_device *dev)
80ff0fd3 DD	43	{
	44	union cvmx_gmxx_prtx_cfg gmx_cfg;
	45	struct octeon_ethernet *priv = netdev_priv(dev);
	46	int interface = INTERFACE(priv->port);
	47	int index = INDEX(priv->port);
	48	cvmx_helper_link_info_t link_info;
	49
	50	gmx_cfg.u64 = cvmx_read_csr(CVMX_GMXX_PRTX_CFG(index, interface));
	51	gmx_cfg.s.en = 1;
	52	cvmx_write_csr(CVMX_GMXX_PRTX_CFG(index, interface), gmx_cfg.u64);
	53
	54	if (!octeon_is_simulation()) {
	55	link_info = cvmx_helper_link_get(priv->port);
	56	if (!link_info.s.link_up)
	57	netif_carrier_off(dev);
	58	}
	59	return 0;
	60	}
	61
f696a108	62	int cvm_oct_xaui_stop(struct net_device *dev)
80ff0fd3 DD	63	{
	64	union cvmx_gmxx_prtx_cfg gmx_cfg;
	65	struct octeon_ethernet *priv = netdev_priv(dev);
	66	int interface = INTERFACE(priv->port);
	67	int index = INDEX(priv->port);
	68
	69	gmx_cfg.u64 = cvmx_read_csr(CVMX_GMXX_PRTX_CFG(index, interface));
	70	gmx_cfg.s.en = 0;
	71	cvmx_write_csr(CVMX_GMXX_PRTX_CFG(index, interface), gmx_cfg.u64);
	72	return 0;
	73	}
	74
	75	static void cvm_oct_xaui_poll(struct net_device *dev)
	76	{
	77	struct octeon_ethernet *priv = netdev_priv(dev);
	78	cvmx_helper_link_info_t link_info;
	79
	80	link_info = cvmx_helper_link_get(priv->port);
	81	if (link_info.u64 == priv->link_info)
	82	return;
	83
	84	link_info = cvmx_helper_link_autoconf(priv->port);
	85	priv->link_info = link_info.u64;
	86
	87	/* Tell Linux */
	88	if (link_info.s.link_up) {
	89
	90	if (!netif_carrier_ok(dev))
	91	netif_carrier_on(dev);
	92	if (priv->queue != -1)
7a2eaf93 CD	93	printk_ratelimited
	94	("%s: %u Mbps %s duplex, port %2d, queue %2d\n",
	95	dev->name, link_info.s.speed,
	96	(link_info.s.full_duplex) ? "Full" : "Half",
	97	priv->port, priv->queue);
80ff0fd3	98	else
7a2eaf93 CD	99	printk_ratelimited
	100	("%s: %u Mbps %s duplex, port %2d, POW\n",
	101	dev->name, link_info.s.speed,
	102	(link_info.s.full_duplex) ? "Full" : "Half",
	103	priv->port);
80ff0fd3 DD	104	} else {
	105	if (netif_carrier_ok(dev))
	106	netif_carrier_off(dev);
7a2eaf93	107	printk_ratelimited("%s: Link down\n", dev->name);
80ff0fd3 DD	108	}
	109	}
	110
	111	int cvm_oct_xaui_init(struct net_device *dev)
	112	{
	113	struct octeon_ethernet *priv = netdev_priv(dev);
	114	cvm_oct_common_init(dev);
f696a108	115	dev->netdev_ops->ndo_stop(dev);
f6ed1b3b	116	if (!octeon_is_simulation() && priv->phydev == NULL)
80ff0fd3 DD	117	priv->poll = cvm_oct_xaui_poll;
	118
	119	return 0;
	120	}
	121
	122	void cvm_oct_xaui_uninit(struct net_device *dev)
	123	{
	124	cvm_oct_common_uninit(dev);
	125	}