etherlabmaster: devices/generic.c@26ac1c611100 (annotated)

1540 49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	1	/******************************************************************************
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	2	*
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	3	* $Id$
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	4	*
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	5	* Copyright (C) 2006-2008 Florian Pose, Ingenieurgemeinschaft IgH
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	6	*
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	7	* This file is part of the IgH EtherCAT Master.
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	8	*
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	9	* The IgH EtherCAT Master is free software; you can redistribute it and/or
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	10	* modify it under the terms of the GNU General Public License version 2, as
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	11	* published by the Free Software Foundation.
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	12	*
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	13	* The IgH EtherCAT Master is distributed in the hope that it will be useful,
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	16	* Public License for more details.
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	17	*
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	18	* You should have received a copy of the GNU General Public License along
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	19	* with the IgH EtherCAT Master; if not, write to the Free Software
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	20	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	21	*
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	22	* ---
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	23	*
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	24	* The license mentioned above concerns the source code only. Using the
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	25	* EtherCAT technology and brand is only permitted in compliance with the
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	26	* industrial property and similar rights of Beckhoff Automation GmbH.
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	27	*
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	28	*****************************************************************************/
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	29
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	30	/** \file
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	31	* EtherCAT generic Ethernet device module.
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	32	*/
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	33
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	34	/*****************************************************************************/
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	35
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	36	#include <linux/module.h>
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	37	#include <linux/device.h>
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	38	#include <linux/err.h>
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	39	#include <linux/version.h>
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	40	#include <linux/if_arp.h> /* ARPHRD_ETHER */
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	41	#include <linux/etherdevice.h>
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	42
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	43	#include "../globals.h"
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	44	#include "ecdev.h"
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	45
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	46	#define PFX "ec_generic: "
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	47
1541 26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	48	#define ETH_P_ETHERCAT 0x88A4
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	49
1540 49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	50	/*****************************************************************************/
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	51
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	52	int __init ec_gen_init_module(void);
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	53	void __exit ec_gen_cleanup_module(void);
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	54
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	55	/*****************************************************************************/
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	56
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	57	/** \cond */
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	58
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	59	MODULE_AUTHOR("Florian Pose <fp@igh-essen.com>");
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	60	MODULE_DESCRIPTION("EtherCAT master generic Ethernet device module");
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	61	MODULE_LICENSE("GPL");
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	62	MODULE_VERSION(EC_MASTER_VERSION);
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	63
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	64	/** \endcond */
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	65
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	66	struct list_head generic_devices;
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	67
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	68	typedef struct {
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	69	struct list_head list;
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	70	struct net_device *netdev;
1541 26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	71	struct socket *socket;
1540 49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	72	ec_device_t *ecdev;
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	73	} ec_gen_device_t;
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	74
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	75	int ec_gen_device_open(ec_gen_device_t *);
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	76	int ec_gen_device_stop(ec_gen_device_t *);
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	77	int ec_gen_device_start_xmit(ec_gen_device_t , struct sk_buff );
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	78
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	79	/*****************************************************************************/
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	80
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	81	static int ec_gen_netdev_open(struct net_device *dev)
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	82	{
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	83	ec_gen_device_t gendev = ((ec_gen_device_t **) netdev_priv(dev));
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	84	return ec_gen_device_open(gendev);
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	85	}
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	86
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	87	/*****************************************************************************/
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	88
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	89	static int ec_gen_netdev_stop(struct net_device *dev)
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	90	{
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	91	ec_gen_device_t gendev = ((ec_gen_device_t **) netdev_priv(dev));
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	92	return ec_gen_device_stop(gendev);
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	93	}
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	94
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	95	/*****************************************************************************/
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	96
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	97	static int ec_gen_netdev_start_xmit(
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	98	struct sk_buff *skb,
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	99	struct net_device *dev
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	100	)
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	101	{
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	102	ec_gen_device_t gendev = ((ec_gen_device_t **) netdev_priv(dev));
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	103	return ec_gen_device_start_xmit(gendev, skb);
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	104	}
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	105
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	106	/*****************************************************************************/
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	107
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	108	void ec_gen_poll(struct net_device *dev)
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	109	{
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	110	}
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	111
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	112	/*****************************************************************************/
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	113
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	114	static const struct net_device_ops ec_gen_netdev_ops = {
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	115	.ndo_open = ec_gen_netdev_open,
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	116	.ndo_stop = ec_gen_netdev_stop,
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	117	.ndo_start_xmit = ec_gen_netdev_start_xmit,
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	118	};
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	119
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	120	/*****************************************************************************/
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	121
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	122	/** Init generic device.
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	123	*/
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	124	int ec_gen_device_init(
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	125	ec_gen_device_t *dev,
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	126	struct net_device *real_netdev
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	127	)
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	128	{
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	129	ec_gen_device_t **priv;
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	130	char null = 0x00;
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	131
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	132	dev->ecdev = NULL;
1541 26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	133	dev->socket = NULL;
1540 49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	134
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	135	dev->netdev = alloc_netdev(sizeof(ec_gen_device_t *), &null, ether_setup);
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	136	if (!dev->netdev) {
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	137	return -ENOMEM;
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	138	}
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	139	memcpy(dev->netdev->dev_addr, real_netdev->dev_addr, ETH_ALEN);
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	140	dev->netdev->netdev_ops = &ec_gen_netdev_ops;
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	141	priv = netdev_priv(dev->netdev);
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	142	*priv = dev;
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	143
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	144	return 0;
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	145	}
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	146
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	147	/*****************************************************************************/
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	148
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	149	/** Clear generic device.
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	150	*/
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	151	void ec_gen_device_clear(
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	152	ec_gen_device_t *dev
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	153	)
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	154	{
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	155	if (dev->ecdev) {
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	156	ecdev_close(dev->ecdev);
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	157	ecdev_withdraw(dev->ecdev);
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	158	}
1541 26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	159	if (dev->socket) {
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	160	sock_release(dev->socket);
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	161	}
1540 49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	162	free_netdev(dev->netdev);
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	163	}
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	164
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	165	/*****************************************************************************/
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	166
1541 26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	167	/** Creates a network socket.
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	168	*/
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	169	int ec_gen_device_create_socket(
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	170	ec_gen_device_t *dev,
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	171	struct net_device *real_netdev
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	172	)
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	173	{
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	174	int ret;
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	175	struct sockaddr_ll sa;
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	176
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	177	ret = sock_create_kern(PF_PACKET, SOCK_RAW, htons(ETH_P_ETHERCAT), &dev->socket);
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	178	if (ret) {
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	179	printk(KERN_ERR PFX "Failed to create socket.\n");
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	180	return ret;
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	181	}
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	182
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	183	printk(KERN_ERR PFX "Binding socket to interface %i (%s).\n",
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	184	real_netdev->ifindex, real_netdev->name);
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	185
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	186	memset(&sa, 0x00, sizeof(sa));
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	187	sa.sll_family = AF_PACKET;
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	188	sa.sll_protocol = htons(ETH_P_ETHERCAT);
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	189	sa.sll_ifindex = real_netdev->ifindex;
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	190	ret = kernel_bind(dev->socket, (struct sockaddr *) &sa, sizeof(sa));
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	191	if (ret) {
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	192	printk(KERN_ERR PFX "Failed to bind() socket to interface.\n");
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	193	sock_release(dev->socket);
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	194	dev->socket = NULL;
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	195	return ret;
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	196	}
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	197
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	198	return 0;
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	199	}
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	200
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	201	/*****************************************************************************/
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	202
1540 49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	203	/** Offer generic device to master.
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	204	*/
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	205	int ec_gen_device_offer(
1541 26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	206	ec_gen_device_t *dev,
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	207	struct net_device *real_netdev
1540 49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	208	)
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	209	{
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	210	int ret = 0;
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	211
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	212	dev->ecdev = ecdev_offer(dev->netdev, ec_gen_poll, THIS_MODULE);
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	213	if (dev->ecdev) {
1541 26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	214	if (ec_gen_device_create_socket(dev, real_netdev)) {
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	215	ecdev_withdraw(dev->ecdev);
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	216	dev->ecdev = NULL;
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	217	} else if (ecdev_open(dev->ecdev)) {
1540 49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	218	ecdev_withdraw(dev->ecdev);
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	219	dev->ecdev = NULL;
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	220	} else {
1541 26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	221	ecdev_set_link(dev->ecdev, 1); // FIXME
1540 49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	222	ret = 1;
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	223	}
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	224	}
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	225
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	226	return ret;
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	227	}
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	228
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	229	/*****************************************************************************/
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	230
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	231	/** Open the device.
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	232	*/
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	233	int ec_gen_device_open(
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	234	ec_gen_device_t *dev
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	235	)
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	236	{
1541 26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	237	return 0;
1540 49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	238	}
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	239
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	240	/*****************************************************************************/
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	241
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	242	/** Stop the device.
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	243	*/
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	244	int ec_gen_device_stop(
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	245	ec_gen_device_t *dev
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	246	)
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	247	{
1541 26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	248	return 0;
1540 49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	249	}
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	250
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	251	/*****************************************************************************/
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	252
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	253	int ec_gen_device_start_xmit(
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	254	ec_gen_device_t *dev,
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	255	struct sk_buff *skb
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	256	)
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	257	{
1541 26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	258	struct msghdr msg;
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	259	struct kvec iov;
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	260	size_t len = skb->len;
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	261	int ret;
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	262
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	263	iov.iov_base = skb->data;
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	264	iov.iov_len = len;
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	265	memset(&msg, 0, sizeof(msg));
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	266
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	267	ret = kernel_sendmsg(dev->socket, &msg, &iov, 1, len);
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	268
26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	269	return ret == len ? NETDEV_TX_OK : NETDEV_TX_BUSY;
1540 49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	270	}
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	271
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	272	/*****************************************************************************/
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	273
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	274	/** Offer device.
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	275	*/
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	276	int offer_device(
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	277	struct net_device *netdev
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	278	)
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	279	{
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	280	ec_gen_device_t *gendev;
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	281	int ret = 0;
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	282
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	283	gendev = kmalloc(sizeof(ec_gen_device_t), GFP_KERNEL);
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	284	if (!gendev) {
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	285	return -ENOMEM;
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	286	}
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	287
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	288	ret = ec_gen_device_init(gendev, netdev);
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	289	if (ret) {
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	290	kfree(gendev);
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	291	return ret;
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	292	}
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	293
1541 26ac1c611100 Sending via generic device works. Florian Pose <fp@igh-essen.com> parents: 1540 diff changeset	294	if (ec_gen_device_offer(gendev, netdev)) {
1540 49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	295	list_add_tail(&gendev->list, &generic_devices);
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	296	} else {
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	297	ec_gen_device_clear(gendev);
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	298	kfree(gendev);
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	299	}
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	300
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	301	return ret;
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	302	}
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	303
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	304	/*****************************************************************************/
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	305
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	306	/** Clear devices.
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	307	*/
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	308	void clear_devices(void)
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	309	{
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	310	ec_gen_device_t gendev, next;
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	311
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	312	list_for_each_entry_safe(gendev, next, &generic_devices, list) {
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	313	list_del(&gendev->list);
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	314	ec_gen_device_clear(gendev);
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	315	kfree(gendev);
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	316	}
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	317	}
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	318
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	319	/*****************************************************************************/
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	320
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	321	/** Module initialization.
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	322	*
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	323	* Initializes \a master_count masters.
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	324	* \return 0 on success, else < 0
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	325	*/
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	326	int __init ec_gen_init_module(void)
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	327	{
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	328	int ret = 0;
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	329	struct net_device *netdev;
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	330
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	331	printk(KERN_INFO PFX "EtherCAT master generic Ethernet device module %s\n",
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	332	EC_MASTER_VERSION);
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	333
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	334	INIT_LIST_HEAD(&generic_devices);
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	335
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	336	read_lock(&dev_base_lock);
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	337	for_each_netdev(&init_net, netdev) {
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	338	if (netdev->type != ARPHRD_ETHER)
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	339	continue;
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	340	ret = offer_device(netdev);
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	341	if (ret) {
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	342	read_unlock(&dev_base_lock);
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	343	goto out_err;
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	344	}
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	345	}
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	346	read_unlock(&dev_base_lock);
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	347	return ret;
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	348
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	349	out_err:
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	350	clear_devices();
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	351	return ret;
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	352	}
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	353
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	354	/*****************************************************************************/
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	355
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	356	/** Module cleanup.
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	357	*
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	358	* Clears all master instances.
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	359	*/
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	360	void __exit ec_gen_cleanup_module(void)
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	361	{
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	362	clear_devices();
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	363	printk(KERN_INFO PFX "Unloading.\n");
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	364	}
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	365
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	366	/*****************************************************************************/
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	367
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	368	/** \cond */
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	369
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	370	module_init(ec_gen_init_module);
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	371	module_exit(ec_gen_cleanup_module);
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	372
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	373	/** \endcond */
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	374
49430a3fe73d Basic generic Ethernet device module. Florian Pose <fp@igh-essen.com> parents: diff changeset	375	/*****************************************************************************/

author	Florian Pose <fp@igh-essen.com>
	Thu, 15 Oct 2009 17:38:53 +0200
changeset 1541	26ac1c611100
parent 1540	49430a3fe73d
child 1542	91ae9c95dd2e
permissions	-rw-r--r--